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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/infiniband/hw/qib | |
| parent | Initial commit. (diff) | |
| download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip | |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
43 files changed, 48401 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/qib/Kconfig b/drivers/infiniband/hw/qib/Kconfig new file mode 100644 index 000000000..6c4895777 --- /dev/null +++ b/drivers/infiniband/hw/qib/Kconfig @@ -0,0 +1,17 @@ +# SPDX-License-Identifier: GPL-2.0-only +config INFINIBAND_QIB + tristate "Intel PCIe HCA support" + depends on 64BIT && INFINIBAND_RDMAVT + depends on PCI + help + This is a low-level driver for Intel PCIe QLE InfiniBand host + channel adapters. This driver does not support the Intel + HyperTransport card (model QHT7140). + +config INFINIBAND_QIB_DCA + bool "QIB DCA support" + depends on INFINIBAND_QIB && DCA && SMP && !(INFINIBAND_QIB=y && DCA=m) + default y + help + Setting this enables DCA support on some Intel chip sets + with the iba7322 HCA. diff --git a/drivers/infiniband/hw/qib/Makefile b/drivers/infiniband/hw/qib/Makefile new file mode 100644 index 000000000..80ffab88f --- /dev/null +++ b/drivers/infiniband/hw/qib/Makefile @@ -0,0 +1,17 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_INFINIBAND_QIB) += ib_qib.o + +ib_qib-y := qib_diag.o qib_driver.o qib_eeprom.o \ + qib_file_ops.o qib_fs.o qib_init.o qib_intr.o \ + qib_mad.o qib_pcie.o qib_pio_copy.o \ + qib_qp.o qib_qsfp.o qib_rc.o qib_ruc.o qib_sdma.o \ + qib_sysfs.o qib_twsi.o qib_tx.o qib_uc.o qib_ud.o \ + qib_user_pages.o qib_user_sdma.o qib_iba7220.o \ + qib_sd7220.o qib_iba7322.o qib_verbs.o + +# 6120 has no fallback if no MSI interrupts, others can do INTx +ib_qib-$(CONFIG_PCI_MSI) += qib_iba6120.o + +ib_qib-$(CONFIG_X86_64) += qib_wc_x86_64.o +ib_qib-$(CONFIG_PPC64) += qib_wc_ppc64.o +ib_qib-$(CONFIG_DEBUG_FS) += qib_debugfs.o diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h new file mode 100644 index 000000000..26c615772 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib.h @@ -0,0 +1,1493 @@ +#ifndef _QIB_KERNEL_H +#define _QIB_KERNEL_H +/* + * Copyright (c) 2012 - 2017 Intel Corporation. All rights reserved. + * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +/* + * This header file is the base header file for qlogic_ib kernel code + * qib_user.h serves a similar purpose for user code. + */ + +#include <linux/interrupt.h> +#include <linux/pci.h> +#include <linux/dma-mapping.h> +#include <linux/mutex.h> +#include <linux/list.h> +#include <linux/scatterlist.h> +#include <linux/slab.h> +#include <linux/io.h> +#include <linux/fs.h> +#include <linux/completion.h> +#include <linux/kref.h> +#include <linux/sched.h> +#include <linux/kthread.h> +#include <linux/xarray.h> +#include <rdma/ib_hdrs.h> +#include <rdma/rdma_vt.h> + +#include "qib_common.h" +#include "qib_verbs.h" + +/* only s/w major version of QLogic_IB we can handle */ +#define QIB_CHIP_VERS_MAJ 2U + +/* don't care about this except printing */ +#define QIB_CHIP_VERS_MIN 0U + +/* The Organization Unique Identifier (Mfg code), and its position in GUID */ +#define QIB_OUI 0x001175 +#define QIB_OUI_LSB 40 + +/* + * per driver stats, either not device nor port-specific, or + * summed over all of the devices and ports. + * They are described by name via ipathfs filesystem, so layout + * and number of elements can change without breaking compatibility. + * If members are added or deleted qib_statnames[] in qib_fs.c must + * change to match. + */ +struct qlogic_ib_stats { + __u64 sps_ints; /* number of interrupts handled */ + __u64 sps_errints; /* number of error interrupts */ + __u64 sps_txerrs; /* tx-related packet errors */ + __u64 sps_rcverrs; /* non-crc rcv packet errors */ + __u64 sps_hwerrs; /* hardware errors reported (parity, etc.) */ + __u64 sps_nopiobufs; /* no pio bufs avail from kernel */ + __u64 sps_ctxts; /* number of contexts currently open */ + __u64 sps_lenerrs; /* number of kernel packets where RHF != LRH len */ + __u64 sps_buffull; + __u64 sps_hdrfull; +}; + +extern struct qlogic_ib_stats qib_stats; +extern const struct pci_error_handlers qib_pci_err_handler; + +#define QIB_CHIP_SWVERSION QIB_CHIP_VERS_MAJ +/* + * First-cut critierion for "device is active" is + * two thousand dwords combined Tx, Rx traffic per + * 5-second interval. SMA packets are 64 dwords, + * and occur "a few per second", presumably each way. + */ +#define QIB_TRAFFIC_ACTIVE_THRESHOLD (2000) + +/* + * Below contains all data related to a single context (formerly called port). + */ + +#ifdef CONFIG_DEBUG_FS +struct qib_opcode_stats_perctx; +#endif + +struct qib_ctxtdata { + void **rcvegrbuf; + dma_addr_t *rcvegrbuf_phys; + /* rcvhdrq base, needs mmap before useful */ + void *rcvhdrq; + /* kernel virtual address where hdrqtail is updated */ + void *rcvhdrtail_kvaddr; + /* + * temp buffer for expected send setup, allocated at open, instead + * of each setup call + */ + void *tid_pg_list; + /* + * Shared page for kernel to signal user processes that send buffers + * need disarming. The process should call QIB_CMD_DISARM_BUFS + * or QIB_CMD_ACK_EVENT with IPATH_EVENT_DISARM_BUFS set. + */ + unsigned long *user_event_mask; + /* when waiting for rcv or pioavail */ + wait_queue_head_t wait; + /* + * rcvegr bufs base, physical, must fit + * in 44 bits so 32 bit programs mmap64 44 bit works) + */ + dma_addr_t rcvegr_phys; + /* mmap of hdrq, must fit in 44 bits */ + dma_addr_t rcvhdrq_phys; + dma_addr_t rcvhdrqtailaddr_phys; + + /* + * number of opens (including slave sub-contexts) on this instance + * (ignoring forks, dup, etc. for now) + */ + int cnt; + /* + * how much space to leave at start of eager TID entries for + * protocol use, on each TID + */ + /* instead of calculating it */ + unsigned ctxt; + /* local node of context */ + int node_id; + /* non-zero if ctxt is being shared. */ + u16 subctxt_cnt; + /* non-zero if ctxt is being shared. */ + u16 subctxt_id; + /* number of eager TID entries. */ + u16 rcvegrcnt; + /* index of first eager TID entry. */ + u16 rcvegr_tid_base; + /* number of pio bufs for this ctxt (all procs, if shared) */ + u32 piocnt; + /* first pio buffer for this ctxt */ + u32 pio_base; + /* chip offset of PIO buffers for this ctxt */ + u32 piobufs; + /* how many alloc_pages() chunks in rcvegrbuf_pages */ + u32 rcvegrbuf_chunks; + /* how many egrbufs per chunk */ + u16 rcvegrbufs_perchunk; + /* ilog2 of above */ + u16 rcvegrbufs_perchunk_shift; + /* order for rcvegrbuf_pages */ + size_t rcvegrbuf_size; + /* rcvhdrq size (for freeing) */ + size_t rcvhdrq_size; + /* per-context flags for fileops/intr communication */ + unsigned long flag; + /* next expected TID to check when looking for free */ + u32 tidcursor; + /* WAIT_RCV that timed out, no interrupt */ + u32 rcvwait_to; + /* WAIT_PIO that timed out, no interrupt */ + u32 piowait_to; + /* WAIT_RCV already happened, no wait */ + u32 rcvnowait; + /* WAIT_PIO already happened, no wait */ + u32 pionowait; + /* total number of polled urgent packets */ + u32 urgent; + /* saved total number of polled urgent packets for poll edge trigger */ + u32 urgent_poll; + /* pid of process using this ctxt */ + pid_t pid; + pid_t subpid[QLOGIC_IB_MAX_SUBCTXT]; + /* same size as task_struct .comm[], command that opened context */ + char comm[TASK_COMM_LEN]; + /* pkeys set by this use of this ctxt */ + u16 pkeys[4]; + /* so file ops can get at unit */ + struct qib_devdata *dd; + /* so funcs that need physical port can get it easily */ + struct qib_pportdata *ppd; + /* A page of memory for rcvhdrhead, rcvegrhead, rcvegrtail * N */ + void *subctxt_uregbase; + /* An array of pages for the eager receive buffers * N */ + void *subctxt_rcvegrbuf; + /* An array of pages for the eager header queue entries * N */ + void *subctxt_rcvhdr_base; + /* The version of the library which opened this ctxt */ + u32 userversion; + /* Bitmask of active slaves */ + u32 active_slaves; + /* Type of packets or conditions we want to poll for */ + u16 poll_type; + /* receive packet sequence counter */ + u8 seq_cnt; + u8 redirect_seq_cnt; + /* ctxt rcvhdrq head offset */ + u32 head; + /* QPs waiting for context processing */ + struct list_head qp_wait_list; +#ifdef CONFIG_DEBUG_FS + /* verbs stats per CTX */ + struct qib_opcode_stats_perctx *opstats; +#endif +}; + +struct rvt_sge_state; + +struct qib_sdma_txreq { + int flags; + int sg_count; + dma_addr_t addr; + void (*callback)(struct qib_sdma_txreq *, int); + u16 start_idx; /* sdma private */ + u16 next_descq_idx; /* sdma private */ + struct list_head list; /* sdma private */ +}; + +struct qib_sdma_desc { + __le64 qw[2]; +}; + +struct qib_verbs_txreq { + struct qib_sdma_txreq txreq; + struct rvt_qp *qp; + struct rvt_swqe *wqe; + u32 dwords; + u16 hdr_dwords; + u16 hdr_inx; + struct qib_pio_header *align_buf; + struct rvt_mregion *mr; + struct rvt_sge_state *ss; +}; + +#define QIB_SDMA_TXREQ_F_USELARGEBUF 0x1 +#define QIB_SDMA_TXREQ_F_HEADTOHOST 0x2 +#define QIB_SDMA_TXREQ_F_INTREQ 0x4 +#define QIB_SDMA_TXREQ_F_FREEBUF 0x8 +#define QIB_SDMA_TXREQ_F_FREEDESC 0x10 + +#define QIB_SDMA_TXREQ_S_OK 0 +#define QIB_SDMA_TXREQ_S_SENDERROR 1 +#define QIB_SDMA_TXREQ_S_ABORTED 2 +#define QIB_SDMA_TXREQ_S_SHUTDOWN 3 + +/* + * Get/Set IB link-level config parameters for f_get/set_ib_cfg() + * Mostly for MADs that set or query link parameters, also ipath + * config interfaces + */ +#define QIB_IB_CFG_LIDLMC 0 /* LID (LS16b) and Mask (MS16b) */ +#define QIB_IB_CFG_LWID_ENB 2 /* allowed Link-width */ +#define QIB_IB_CFG_LWID 3 /* currently active Link-width */ +#define QIB_IB_CFG_SPD_ENB 4 /* allowed Link speeds */ +#define QIB_IB_CFG_SPD 5 /* current Link spd */ +#define QIB_IB_CFG_RXPOL_ENB 6 /* Auto-RX-polarity enable */ +#define QIB_IB_CFG_LREV_ENB 7 /* Auto-Lane-reversal enable */ +#define QIB_IB_CFG_LINKLATENCY 8 /* Link Latency (IB1.2 only) */ +#define QIB_IB_CFG_HRTBT 9 /* IB heartbeat off/enable/auto; DDR/QDR only */ +#define QIB_IB_CFG_OP_VLS 10 /* operational VLs */ +#define QIB_IB_CFG_VL_HIGH_CAP 11 /* num of VL high priority weights */ +#define QIB_IB_CFG_VL_LOW_CAP 12 /* num of VL low priority weights */ +#define QIB_IB_CFG_OVERRUN_THRESH 13 /* IB overrun threshold */ +#define QIB_IB_CFG_PHYERR_THRESH 14 /* IB PHY error threshold */ +#define QIB_IB_CFG_LINKDEFAULT 15 /* IB link default (sleep/poll) */ +#define QIB_IB_CFG_PKEYS 16 /* update partition keys */ +#define QIB_IB_CFG_MTU 17 /* update MTU in IBC */ +#define QIB_IB_CFG_LSTATE 18 /* update linkcmd and linkinitcmd in IBC */ +#define QIB_IB_CFG_VL_HIGH_LIMIT 19 +#define QIB_IB_CFG_PMA_TICKS 20 /* PMA sample tick resolution */ +#define QIB_IB_CFG_PORT 21 /* switch port we are connected to */ + +/* + * for CFG_LSTATE: LINKCMD in upper 16 bits, LINKINITCMD in lower 16 + * IB_LINKINITCMD_POLL and SLEEP are also used as set/get values for + * QIB_IB_CFG_LINKDEFAULT cmd + */ +#define IB_LINKCMD_DOWN (0 << 16) +#define IB_LINKCMD_ARMED (1 << 16) +#define IB_LINKCMD_ACTIVE (2 << 16) +#define IB_LINKINITCMD_NOP 0 +#define IB_LINKINITCMD_POLL 1 +#define IB_LINKINITCMD_SLEEP 2 +#define IB_LINKINITCMD_DISABLE 3 + +/* + * valid states passed to qib_set_linkstate() user call + */ +#define QIB_IB_LINKDOWN 0 +#define QIB_IB_LINKARM 1 +#define QIB_IB_LINKACTIVE 2 +#define QIB_IB_LINKDOWN_ONLY 3 +#define QIB_IB_LINKDOWN_SLEEP 4 +#define QIB_IB_LINKDOWN_DISABLE 5 + +/* + * These 7 values (SDR, DDR, and QDR may be ORed for auto-speed + * negotiation) are used for the 3rd argument to path_f_set_ib_cfg + * with cmd QIB_IB_CFG_SPD_ENB, by direct calls or via sysfs. They + * are also the possible values for qib_link_speed_enabled and active + * The values were chosen to match values used within the IB spec. + */ +#define QIB_IB_SDR 1 +#define QIB_IB_DDR 2 +#define QIB_IB_QDR 4 + +#define QIB_DEFAULT_MTU 4096 + +/* max number of IB ports supported per HCA */ +#define QIB_MAX_IB_PORTS 2 + +/* + * Possible IB config parameters for f_get/set_ib_table() + */ +#define QIB_IB_TBL_VL_HIGH_ARB 1 /* Get/set VL high priority weights */ +#define QIB_IB_TBL_VL_LOW_ARB 2 /* Get/set VL low priority weights */ + +/* + * Possible "operations" for f_rcvctrl(ppd, op, ctxt) + * these are bits so they can be combined, e.g. + * QIB_RCVCTRL_INTRAVAIL_ENB | QIB_RCVCTRL_CTXT_ENB + */ +#define QIB_RCVCTRL_TAILUPD_ENB 0x01 +#define QIB_RCVCTRL_TAILUPD_DIS 0x02 +#define QIB_RCVCTRL_CTXT_ENB 0x04 +#define QIB_RCVCTRL_CTXT_DIS 0x08 +#define QIB_RCVCTRL_INTRAVAIL_ENB 0x10 +#define QIB_RCVCTRL_INTRAVAIL_DIS 0x20 +#define QIB_RCVCTRL_PKEY_ENB 0x40 /* Note, default is enabled */ +#define QIB_RCVCTRL_PKEY_DIS 0x80 +#define QIB_RCVCTRL_BP_ENB 0x0100 +#define QIB_RCVCTRL_BP_DIS 0x0200 +#define QIB_RCVCTRL_TIDFLOW_ENB 0x0400 +#define QIB_RCVCTRL_TIDFLOW_DIS 0x0800 + +/* + * Possible "operations" for f_sendctrl(ppd, op, var) + * these are bits so they can be combined, e.g. + * QIB_SENDCTRL_BUFAVAIL_ENB | QIB_SENDCTRL_ENB + * Some operations (e.g. DISARM, ABORT) are known to + * be "one-shot", so do not modify shadow. + */ +#define QIB_SENDCTRL_DISARM (0x1000) +#define QIB_SENDCTRL_DISARM_BUF(bufn) ((bufn) | QIB_SENDCTRL_DISARM) + /* available (0x2000) */ +#define QIB_SENDCTRL_AVAIL_DIS (0x4000) +#define QIB_SENDCTRL_AVAIL_ENB (0x8000) +#define QIB_SENDCTRL_AVAIL_BLIP (0x10000) +#define QIB_SENDCTRL_SEND_DIS (0x20000) +#define QIB_SENDCTRL_SEND_ENB (0x40000) +#define QIB_SENDCTRL_FLUSH (0x80000) +#define QIB_SENDCTRL_CLEAR (0x100000) +#define QIB_SENDCTRL_DISARM_ALL (0x200000) + +/* + * These are the generic indices for requesting per-port + * counter values via the f_portcntr function. They + * are always returned as 64 bit values, although most + * are 32 bit counters. + */ +/* send-related counters */ +#define QIBPORTCNTR_PKTSEND 0U +#define QIBPORTCNTR_WORDSEND 1U +#define QIBPORTCNTR_PSXMITDATA 2U +#define QIBPORTCNTR_PSXMITPKTS 3U +#define QIBPORTCNTR_PSXMITWAIT 4U +#define QIBPORTCNTR_SENDSTALL 5U +/* receive-related counters */ +#define QIBPORTCNTR_PKTRCV 6U +#define QIBPORTCNTR_PSRCVDATA 7U +#define QIBPORTCNTR_PSRCVPKTS 8U +#define QIBPORTCNTR_RCVEBP 9U +#define QIBPORTCNTR_RCVOVFL 10U +#define QIBPORTCNTR_WORDRCV 11U +/* IB link related error counters */ +#define QIBPORTCNTR_RXLOCALPHYERR 12U +#define QIBPORTCNTR_RXVLERR 13U +#define QIBPORTCNTR_ERRICRC 14U +#define QIBPORTCNTR_ERRVCRC 15U +#define QIBPORTCNTR_ERRLPCRC 16U +#define QIBPORTCNTR_BADFORMAT 17U +#define QIBPORTCNTR_ERR_RLEN 18U +#define QIBPORTCNTR_IBSYMBOLERR 19U +#define QIBPORTCNTR_INVALIDRLEN 20U +#define QIBPORTCNTR_UNSUPVL 21U +#define QIBPORTCNTR_EXCESSBUFOVFL 22U +#define QIBPORTCNTR_ERRLINK 23U +#define QIBPORTCNTR_IBLINKDOWN 24U +#define QIBPORTCNTR_IBLINKERRRECOV 25U +#define QIBPORTCNTR_LLI 26U +/* other error counters */ +#define QIBPORTCNTR_RXDROPPKT 27U +#define QIBPORTCNTR_VL15PKTDROP 28U +#define QIBPORTCNTR_ERRPKEY 29U +#define QIBPORTCNTR_KHDROVFL 30U +/* sampling counters (these are actually control registers) */ +#define QIBPORTCNTR_PSINTERVAL 31U +#define QIBPORTCNTR_PSSTART 32U +#define QIBPORTCNTR_PSSTAT 33U + +/* how often we check for packet activity for "power on hours (in seconds) */ +#define ACTIVITY_TIMER 5 + +#define MAX_NAME_SIZE 64 + +#ifdef CONFIG_INFINIBAND_QIB_DCA +struct qib_irq_notify; +#endif + +struct qib_msix_entry { + void *arg; +#ifdef CONFIG_INFINIBAND_QIB_DCA + int dca; + int rcv; + struct qib_irq_notify *notifier; +#endif + cpumask_var_t mask; +}; + +/* Below is an opaque struct. Each chip (device) can maintain + * private data needed for its operation, but not germane to the + * rest of the driver. For convenience, we define another that + * is chip-specific, per-port + */ +struct qib_chip_specific; +struct qib_chipport_specific; + +enum qib_sdma_states { + qib_sdma_state_s00_hw_down, + qib_sdma_state_s10_hw_start_up_wait, + qib_sdma_state_s20_idle, + qib_sdma_state_s30_sw_clean_up_wait, + qib_sdma_state_s40_hw_clean_up_wait, + qib_sdma_state_s50_hw_halt_wait, + qib_sdma_state_s99_running, +}; + +enum qib_sdma_events { + qib_sdma_event_e00_go_hw_down, + qib_sdma_event_e10_go_hw_start, + qib_sdma_event_e20_hw_started, + qib_sdma_event_e30_go_running, + qib_sdma_event_e40_sw_cleaned, + qib_sdma_event_e50_hw_cleaned, + qib_sdma_event_e60_hw_halted, + qib_sdma_event_e70_go_idle, + qib_sdma_event_e7220_err_halted, + qib_sdma_event_e7322_err_halted, + qib_sdma_event_e90_timer_tick, +}; + +struct sdma_set_state_action { + unsigned op_enable:1; + unsigned op_intenable:1; + unsigned op_halt:1; + unsigned op_drain:1; + unsigned go_s99_running_tofalse:1; + unsigned go_s99_running_totrue:1; +}; + +struct qib_sdma_state { + struct kref kref; + struct completion comp; + enum qib_sdma_states current_state; + struct sdma_set_state_action *set_state_action; + unsigned current_op; + unsigned go_s99_running; + unsigned first_sendbuf; + unsigned last_sendbuf; /* really last +1 */ + /* debugging/devel */ + enum qib_sdma_states previous_state; + unsigned previous_op; + enum qib_sdma_events last_event; +}; + +struct xmit_wait { + struct timer_list timer; + u64 counter; + u8 flags; + struct cache { + u64 psxmitdata; + u64 psrcvdata; + u64 psxmitpkts; + u64 psrcvpkts; + u64 psxmitwait; + } counter_cache; +}; + +/* + * The structure below encapsulates data relevant to a physical IB Port. + * Current chips support only one such port, but the separation + * clarifies things a bit. Note that to conform to IB conventions, + * port-numbers are one-based. The first or only port is port1. + */ +struct qib_pportdata { + struct qib_ibport ibport_data; + + struct qib_devdata *dd; + struct qib_chippport_specific *cpspec; /* chip-specific per-port */ + + /* GUID for this interface, in network order */ + __be64 guid; + + /* QIB_POLL, etc. link-state specific flags, per port */ + u32 lflags; + /* qib_lflags driver is waiting for */ + u32 state_wanted; + spinlock_t lflags_lock; + + /* ref count for each pkey */ + atomic_t pkeyrefs[4]; + + /* + * this address is mapped readonly into user processes so they can + * get status cheaply, whenever they want. One qword of status per port + */ + u64 *statusp; + + /* SendDMA related entries */ + + /* read mostly */ + struct qib_sdma_desc *sdma_descq; + struct workqueue_struct *qib_wq; + struct qib_sdma_state sdma_state; + dma_addr_t sdma_descq_phys; + volatile __le64 *sdma_head_dma; /* DMA'ed by chip */ + dma_addr_t sdma_head_phys; + u16 sdma_descq_cnt; + + /* read/write using lock */ + spinlock_t sdma_lock ____cacheline_aligned_in_smp; + struct list_head sdma_activelist; + struct list_head sdma_userpending; + u64 sdma_descq_added; + u64 sdma_descq_removed; + u16 sdma_descq_tail; + u16 sdma_descq_head; + u8 sdma_generation; + u8 sdma_intrequest; + + struct tasklet_struct sdma_sw_clean_up_task + ____cacheline_aligned_in_smp; + + wait_queue_head_t state_wait; /* for state_wanted */ + + /* HoL blocking for SMP replies */ + unsigned hol_state; + struct timer_list hol_timer; + + /* + * Shadow copies of registers; size indicates read access size. + * Most of them are readonly, but some are write-only register, + * where we manipulate the bits in the shadow copy, and then write + * the shadow copy to qlogic_ib. + * + * We deliberately make most of these 32 bits, since they have + * restricted range. For any that we read, we won't to generate 32 + * bit accesses, since Opteron will generate 2 separate 32 bit HT + * transactions for a 64 bit read, and we want to avoid unnecessary + * bus transactions. + */ + + /* This is the 64 bit group */ + /* last ibcstatus. opaque outside chip-specific code */ + u64 lastibcstat; + + /* these are the "32 bit" regs */ + + /* + * the following two are 32-bit bitmasks, but {test,clear,set}_bit + * all expect bit fields to be "unsigned long" + */ + unsigned long p_rcvctrl; /* shadow per-port rcvctrl */ + unsigned long p_sendctrl; /* shadow per-port sendctrl */ + + u32 ibmtu; /* The MTU programmed for this unit */ + /* + * Current max size IB packet (in bytes) including IB headers, that + * we can send. Changes when ibmtu changes. + */ + u32 ibmaxlen; + /* + * ibmaxlen at init time, limited by chip and by receive buffer + * size. Not changed after init. + */ + u32 init_ibmaxlen; + /* LID programmed for this instance */ + u16 lid; + /* list of pkeys programmed; 0 if not set */ + u16 pkeys[4]; + /* LID mask control */ + u8 lmc; + u8 link_width_supported; + u16 link_speed_supported; + u8 link_width_enabled; + u16 link_speed_enabled; + u8 link_width_active; + u16 link_speed_active; + u8 vls_supported; + u8 vls_operational; + /* Rx Polarity inversion (compensate for ~tx on partner) */ + u8 rx_pol_inv; + + u8 hw_pidx; /* physical port index */ + u32 port; /* IB port number and index into dd->pports - 1 */ + + u8 delay_mult; + + /* used to override LED behavior */ + u8 led_override; /* Substituted for normal value, if non-zero */ + u16 led_override_timeoff; /* delta to next timer event */ + u8 led_override_vals[2]; /* Alternates per blink-frame */ + u8 led_override_phase; /* Just counts, LSB picks from vals[] */ + atomic_t led_override_timer_active; + /* Used to flash LEDs in override mode */ + struct timer_list led_override_timer; + struct xmit_wait cong_stats; + struct timer_list symerr_clear_timer; + + /* Synchronize access between driver writes and sysfs reads */ + spinlock_t cc_shadow_lock + ____cacheline_aligned_in_smp; + + /* Shadow copy of the congestion control table */ + struct cc_table_shadow *ccti_entries_shadow; + + /* Shadow copy of the congestion control entries */ + struct ib_cc_congestion_setting_attr_shadow *congestion_entries_shadow; + + /* List of congestion control table entries */ + struct ib_cc_table_entry_shadow *ccti_entries; + + /* 16 congestion entries with each entry corresponding to a SL */ + struct ib_cc_congestion_entry_shadow *congestion_entries; + + /* Maximum number of congestion control entries that the agent expects + * the manager to send. + */ + u16 cc_supported_table_entries; + + /* Total number of congestion control table entries */ + u16 total_cct_entry; + + /* Bit map identifying service level */ + u16 cc_sl_control_map; + + /* maximum congestion control table index */ + u16 ccti_limit; + + /* CA's max number of 64 entry units in the congestion control table */ + u8 cc_max_table_entries; +}; + +/* Observers. Not to be taken lightly, possibly not to ship. */ +/* + * If a diag read or write is to (bottom <= offset <= top), + * the "hook" is called, allowing, e.g. shadows to be + * updated in sync with the driver. struct diag_observer + * is the "visible" part. + */ +struct diag_observer; + +typedef int (*diag_hook) (struct qib_devdata *dd, + const struct diag_observer *op, + u32 offs, u64 *data, u64 mask, int only_32); + +struct diag_observer { + diag_hook hook; + u32 bottom; + u32 top; +}; + +extern int qib_register_observer(struct qib_devdata *dd, + const struct diag_observer *op); + +/* Only declared here, not defined. Private to diags */ +struct diag_observer_list_elt; + +/* device data struct now contains only "general per-device" info. + * fields related to a physical IB port are in a qib_pportdata struct, + * described above) while fields only used by a particular chip-type are in + * a qib_chipdata struct, whose contents are opaque to this file. + */ +struct qib_devdata { + struct qib_ibdev verbs_dev; /* must be first */ + struct list_head list; + /* pointers to related structs for this device */ + /* pci access data structure */ + struct pci_dev *pcidev; + struct cdev *user_cdev; + struct cdev *diag_cdev; + struct device *user_device; + struct device *diag_device; + + /* mem-mapped pointer to base of chip regs */ + u64 __iomem *kregbase; + /* end of mem-mapped chip space excluding sendbuf and user regs */ + u64 __iomem *kregend; + /* physical address of chip for io_remap, etc. */ + resource_size_t physaddr; + /* qib_cfgctxts pointers */ + struct qib_ctxtdata **rcd; /* Receive Context Data */ + + /* qib_pportdata, points to array of (physical) port-specific + * data structs, indexed by pidx (0..n-1) + */ + struct qib_pportdata *pport; + struct qib_chip_specific *cspec; /* chip-specific */ + + /* kvirt address of 1st 2k pio buffer */ + void __iomem *pio2kbase; + /* kvirt address of 1st 4k pio buffer */ + void __iomem *pio4kbase; + /* mem-mapped pointer to base of PIO buffers (if using WC PAT) */ + void __iomem *piobase; + /* mem-mapped pointer to base of user chip regs (if using WC PAT) */ + u64 __iomem *userbase; + void __iomem *piovl15base; /* base of VL15 buffers, if not WC */ + /* + * points to area where PIOavail registers will be DMA'ed. + * Has to be on a page of it's own, because the page will be + * mapped into user program space. This copy is *ONLY* ever + * written by DMA, not by the driver! Need a copy per device + * when we get to multiple devices + */ + volatile __le64 *pioavailregs_dma; /* DMA'ed by chip */ + /* physical address where updates occur */ + dma_addr_t pioavailregs_phys; + + /* device-specific implementations of functions needed by + * common code. Contrary to previous consensus, we can't + * really just point to a device-specific table, because we + * may need to "bend", e.g. *_f_put_tid + */ + /* fallback to alternate interrupt type if possible */ + int (*f_intr_fallback)(struct qib_devdata *); + /* hard reset chip */ + int (*f_reset)(struct qib_devdata *); + void (*f_quiet_serdes)(struct qib_pportdata *); + int (*f_bringup_serdes)(struct qib_pportdata *); + int (*f_early_init)(struct qib_devdata *); + void (*f_clear_tids)(struct qib_devdata *, struct qib_ctxtdata *); + void (*f_put_tid)(struct qib_devdata *, u64 __iomem*, + u32, unsigned long); + void (*f_cleanup)(struct qib_devdata *); + void (*f_setextled)(struct qib_pportdata *, u32); + /* fill out chip-specific fields */ + int (*f_get_base_info)(struct qib_ctxtdata *, struct qib_base_info *); + /* free irq */ + void (*f_free_irq)(struct qib_devdata *); + struct qib_message_header *(*f_get_msgheader) + (struct qib_devdata *, __le32 *); + void (*f_config_ctxts)(struct qib_devdata *); + int (*f_get_ib_cfg)(struct qib_pportdata *, int); + int (*f_set_ib_cfg)(struct qib_pportdata *, int, u32); + int (*f_set_ib_loopback)(struct qib_pportdata *, const char *); + int (*f_get_ib_table)(struct qib_pportdata *, int, void *); + int (*f_set_ib_table)(struct qib_pportdata *, int, void *); + u32 (*f_iblink_state)(u64); + u8 (*f_ibphys_portstate)(u64); + void (*f_xgxs_reset)(struct qib_pportdata *); + /* per chip actions needed for IB Link up/down changes */ + int (*f_ib_updown)(struct qib_pportdata *, int, u64); + u32 __iomem *(*f_getsendbuf)(struct qib_pportdata *, u64, u32 *); + /* Read/modify/write of GPIO pins (potentially chip-specific */ + int (*f_gpio_mod)(struct qib_devdata *dd, u32 out, u32 dir, + u32 mask); + /* Enable writes to config EEPROM (if supported) */ + int (*f_eeprom_wen)(struct qib_devdata *dd, int wen); + /* + * modify rcvctrl shadow[s] and write to appropriate chip-regs. + * see above QIB_RCVCTRL_xxx_ENB/DIS for operations. + * (ctxt == -1) means "all contexts", only meaningful for + * clearing. Could remove if chip_spec shutdown properly done. + */ + void (*f_rcvctrl)(struct qib_pportdata *, unsigned int op, + int ctxt); + /* Read/modify/write sendctrl appropriately for op and port. */ + void (*f_sendctrl)(struct qib_pportdata *, u32 op); + void (*f_set_intr_state)(struct qib_devdata *, u32); + void (*f_set_armlaunch)(struct qib_devdata *, u32); + void (*f_wantpiobuf_intr)(struct qib_devdata *, u32); + int (*f_late_initreg)(struct qib_devdata *); + int (*f_init_sdma_regs)(struct qib_pportdata *); + u16 (*f_sdma_gethead)(struct qib_pportdata *); + int (*f_sdma_busy)(struct qib_pportdata *); + void (*f_sdma_update_tail)(struct qib_pportdata *, u16); + void (*f_sdma_set_desc_cnt)(struct qib_pportdata *, unsigned); + void (*f_sdma_sendctrl)(struct qib_pportdata *, unsigned); + void (*f_sdma_hw_clean_up)(struct qib_pportdata *); + void (*f_sdma_hw_start_up)(struct qib_pportdata *); + void (*f_sdma_init_early)(struct qib_pportdata *); + void (*f_set_cntr_sample)(struct qib_pportdata *, u32, u32); + void (*f_update_usrhead)(struct qib_ctxtdata *, u64, u32, u32, u32); + u32 (*f_hdrqempty)(struct qib_ctxtdata *); + u64 (*f_portcntr)(struct qib_pportdata *, u32); + u32 (*f_read_cntrs)(struct qib_devdata *, loff_t, char **, + u64 **); + u32 (*f_read_portcntrs)(struct qib_devdata *, loff_t, u32, + char **, u64 **); + u32 (*f_setpbc_control)(struct qib_pportdata *, u32, u8, u8); + void (*f_initvl15_bufs)(struct qib_devdata *); + void (*f_init_ctxt)(struct qib_ctxtdata *); + void (*f_txchk_change)(struct qib_devdata *, u32, u32, u32, + struct qib_ctxtdata *); + void (*f_writescratch)(struct qib_devdata *, u32); + int (*f_tempsense_rd)(struct qib_devdata *, int regnum); +#ifdef CONFIG_INFINIBAND_QIB_DCA + int (*f_notify_dca)(struct qib_devdata *, unsigned long event); +#endif + + char *boardname; /* human readable board info */ + + /* template for writing TIDs */ + u64 tidtemplate; + /* value to write to free TIDs */ + u64 tidinvalid; + + /* number of registers used for pioavail */ + u32 pioavregs; + /* device (not port) flags, basically device capabilities */ + u32 flags; + /* last buffer for user use */ + u32 lastctxt_piobuf; + + /* reset value */ + u64 z_int_counter; + /* percpu intcounter */ + u64 __percpu *int_counter; + + /* pio bufs allocated per ctxt */ + u32 pbufsctxt; + /* if remainder on bufs/ctxt, ctxts < extrabuf get 1 extra */ + u32 ctxts_extrabuf; + /* + * number of ctxts configured as max; zero is set to number chip + * supports, less gives more pio bufs/ctxt, etc. + */ + u32 cfgctxts; + /* + * number of ctxts available for PSM open + */ + u32 freectxts; + + /* + * hint that we should update pioavailshadow before + * looking for a PIO buffer + */ + u32 upd_pio_shadow; + + /* internal debugging stats */ + u32 maxpkts_call; + u32 avgpkts_call; + u64 nopiobufs; + + /* PCI Vendor ID (here for NodeInfo) */ + u16 vendorid; + /* PCI Device ID (here for NodeInfo) */ + u16 deviceid; + /* for write combining settings */ + int wc_cookie; + unsigned long wc_base; + unsigned long wc_len; + + /* shadow copy of struct page *'s for exp tid pages */ + struct page **pageshadow; + /* shadow copy of dma handles for exp tid pages */ + dma_addr_t *physshadow; + u64 __iomem *egrtidbase; + spinlock_t sendctrl_lock; /* protect changes to sendctrl shadow */ + /* around rcd and (user ctxts) ctxt_cnt use (intr vs free) */ + spinlock_t uctxt_lock; /* rcd and user context changes */ + /* + * per unit status, see also portdata statusp + * mapped readonly into user processes so they can get unit and + * IB link status cheaply + */ + u64 *devstatusp; + char *freezemsg; /* freeze msg if hw error put chip in freeze */ + u32 freezelen; /* max length of freezemsg */ + /* timer used to prevent stats overflow, error throttling, etc. */ + struct timer_list stats_timer; + + /* timer to verify interrupts work, and fallback if possible */ + struct timer_list intrchk_timer; + unsigned long ureg_align; /* user register alignment */ + + /* + * Protects pioavailshadow, pioavailkernel, pio_need_disarm, and + * pio_writing. + */ + spinlock_t pioavail_lock; + /* + * index of last buffer to optimize search for next + */ + u32 last_pio; + /* + * min kernel pio buffer to optimize search + */ + u32 min_kernel_pio; + /* + * Shadow copies of registers; size indicates read access size. + * Most of them are readonly, but some are write-only register, + * where we manipulate the bits in the shadow copy, and then write + * the shadow copy to qlogic_ib. + * + * We deliberately make most of these 32 bits, since they have + * restricted range. For any that we read, we won't to generate 32 + * bit accesses, since Opteron will generate 2 separate 32 bit HT + * transactions for a 64 bit read, and we want to avoid unnecessary + * bus transactions. + */ + + /* This is the 64 bit group */ + + unsigned long pioavailshadow[6]; + /* bitmap of send buffers available for the kernel to use with PIO. */ + unsigned long pioavailkernel[6]; + /* bitmap of send buffers which need to be disarmed. */ + unsigned long pio_need_disarm[3]; + /* bitmap of send buffers which are being written to. */ + unsigned long pio_writing[3]; + /* kr_revision shadow */ + u64 revision; + /* Base GUID for device (from eeprom, network order) */ + __be64 base_guid; + + /* + * kr_sendpiobufbase value (chip offset of pio buffers), and the + * base of the 2KB buffer s(user processes only use 2K) + */ + u64 piobufbase; + u32 pio2k_bufbase; + + /* these are the "32 bit" regs */ + + /* number of GUIDs in the flash for this interface */ + u32 nguid; + /* + * the following two are 32-bit bitmasks, but {test,clear,set}_bit + * all expect bit fields to be "unsigned long" + */ + unsigned long rcvctrl; /* shadow per device rcvctrl */ + unsigned long sendctrl; /* shadow per device sendctrl */ + + /* value we put in kr_rcvhdrcnt */ + u32 rcvhdrcnt; + /* value we put in kr_rcvhdrsize */ + u32 rcvhdrsize; + /* value we put in kr_rcvhdrentsize */ + u32 rcvhdrentsize; + /* kr_ctxtcnt value */ + u32 ctxtcnt; + /* kr_pagealign value */ + u32 palign; + /* number of "2KB" PIO buffers */ + u32 piobcnt2k; + /* size in bytes of "2KB" PIO buffers */ + u32 piosize2k; + /* max usable size in dwords of a "2KB" PIO buffer before going "4KB" */ + u32 piosize2kmax_dwords; + /* number of "4KB" PIO buffers */ + u32 piobcnt4k; + /* size in bytes of "4KB" PIO buffers */ + u32 piosize4k; + /* kr_rcvegrbase value */ + u32 rcvegrbase; + /* kr_rcvtidbase value */ + u32 rcvtidbase; + /* kr_rcvtidcnt value */ + u32 rcvtidcnt; + /* kr_userregbase */ + u32 uregbase; + /* shadow the control register contents */ + u32 control; + + /* chip address space used by 4k pio buffers */ + u32 align4k; + /* size of each rcvegrbuffer */ + u16 rcvegrbufsize; + /* log2 of above */ + u16 rcvegrbufsize_shift; + /* localbus width (1, 2,4,8,16,32) from config space */ + u32 lbus_width; + /* localbus speed in MHz */ + u32 lbus_speed; + int unit; /* unit # of this chip */ + + /* start of CHIP_SPEC move to chipspec, but need code changes */ + /* low and high portions of MSI capability/vector */ + u32 msi_lo; + /* saved after PCIe init for restore after reset */ + u32 msi_hi; + /* MSI data (vector) saved for restore */ + u16 msi_data; + /* so we can rewrite it after a chip reset */ + u32 pcibar0; + /* so we can rewrite it after a chip reset */ + u32 pcibar1; + u64 rhdrhead_intr_off; + + /* + * ASCII serial number, from flash, large enough for original + * all digit strings, and longer QLogic serial number format + */ + u8 serial[16]; + /* human readable board version */ + u8 boardversion[96]; + u8 lbus_info[32]; /* human readable localbus info */ + /* chip major rev, from qib_revision */ + u8 majrev; + /* chip minor rev, from qib_revision */ + u8 minrev; + + /* Misc small ints */ + /* Number of physical ports available */ + u8 num_pports; + /* Lowest context number which can be used by user processes */ + u8 first_user_ctxt; + u8 n_krcv_queues; + u8 qpn_mask; + u8 skip_kctxt_mask; + + u16 rhf_offset; /* offset of RHF within receive header entry */ + + /* + * GPIO pins for twsi-connected devices, and device code for eeprom + */ + u8 gpio_sda_num; + u8 gpio_scl_num; + u8 twsi_eeprom_dev; + u8 board_atten; + + /* Support (including locks) for EEPROM logging of errors and time */ + /* control access to actual counters, timer */ + spinlock_t eep_st_lock; + /* control high-level access to EEPROM */ + struct mutex eep_lock; + uint64_t traffic_wds; + struct qib_diag_client *diag_client; + spinlock_t qib_diag_trans_lock; /* protect diag observer ops */ + struct diag_observer_list_elt *diag_observer_list; + + u8 psxmitwait_supported; + /* cycle length of PS* counters in HW (in picoseconds) */ + u16 psxmitwait_check_rate; + /* high volume overflow errors defered to tasklet */ + struct tasklet_struct error_tasklet; + + int assigned_node_id; /* NUMA node closest to HCA */ +}; + +/* hol_state values */ +#define QIB_HOL_UP 0 +#define QIB_HOL_INIT 1 + +#define QIB_SDMA_SENDCTRL_OP_ENABLE (1U << 0) +#define QIB_SDMA_SENDCTRL_OP_INTENABLE (1U << 1) +#define QIB_SDMA_SENDCTRL_OP_HALT (1U << 2) +#define QIB_SDMA_SENDCTRL_OP_CLEANUP (1U << 3) +#define QIB_SDMA_SENDCTRL_OP_DRAIN (1U << 4) + +/* operation types for f_txchk_change() */ +#define TXCHK_CHG_TYPE_DIS1 3 +#define TXCHK_CHG_TYPE_ENAB1 2 +#define TXCHK_CHG_TYPE_KERN 1 +#define TXCHK_CHG_TYPE_USER 0 + +#define QIB_CHASE_TIME msecs_to_jiffies(145) +#define QIB_CHASE_DIS_TIME msecs_to_jiffies(160) + +/* Private data for file operations */ +struct qib_filedata { + struct qib_ctxtdata *rcd; + unsigned subctxt; + unsigned tidcursor; + struct qib_user_sdma_queue *pq; + int rec_cpu_num; /* for cpu affinity; -1 if none */ +}; + +extern struct xarray qib_dev_table; +extern struct qib_devdata *qib_lookup(int unit); +extern u32 qib_cpulist_count; +extern unsigned long *qib_cpulist; +extern unsigned qib_cc_table_size; + +int qib_init(struct qib_devdata *, int); +int init_chip_wc_pat(struct qib_devdata *dd, u32); +int qib_enable_wc(struct qib_devdata *dd); +void qib_disable_wc(struct qib_devdata *dd); +int qib_count_units(int *npresentp, int *nupp); +int qib_count_active_units(void); + +int qib_cdev_init(int minor, const char *name, + const struct file_operations *fops, + struct cdev **cdevp, struct device **devp); +void qib_cdev_cleanup(struct cdev **cdevp, struct device **devp); +int qib_dev_init(void); +void qib_dev_cleanup(void); + +int qib_diag_add(struct qib_devdata *); +void qib_diag_remove(struct qib_devdata *); +void qib_handle_e_ibstatuschanged(struct qib_pportdata *, u64); +void qib_sdma_update_tail(struct qib_pportdata *, u16); /* hold sdma_lock */ + +int qib_decode_err(struct qib_devdata *dd, char *buf, size_t blen, u64 err); +void qib_bad_intrstatus(struct qib_devdata *); +void qib_handle_urcv(struct qib_devdata *, u64); + +/* clean up any per-chip chip-specific stuff */ +void qib_chip_cleanup(struct qib_devdata *); +/* clean up any chip type-specific stuff */ +void qib_chip_done(void); + +/* check to see if we have to force ordering for write combining */ +int qib_unordered_wc(void); +void qib_pio_copy(void __iomem *to, const void *from, size_t count); + +void qib_disarm_piobufs(struct qib_devdata *, unsigned, unsigned); +int qib_disarm_piobufs_ifneeded(struct qib_ctxtdata *); +void qib_disarm_piobufs_set(struct qib_devdata *, unsigned long *, unsigned); +void qib_cancel_sends(struct qib_pportdata *); + +int qib_create_rcvhdrq(struct qib_devdata *, struct qib_ctxtdata *); +int qib_setup_eagerbufs(struct qib_ctxtdata *); +void qib_set_ctxtcnt(struct qib_devdata *); +int qib_create_ctxts(struct qib_devdata *dd); +struct qib_ctxtdata *qib_create_ctxtdata(struct qib_pportdata *, u32, int); +int qib_init_pportdata(struct qib_pportdata *, struct qib_devdata *, u8, u8); +void qib_free_ctxtdata(struct qib_devdata *, struct qib_ctxtdata *); + +u32 qib_kreceive(struct qib_ctxtdata *, u32 *, u32 *); +int qib_reset_device(int); +int qib_wait_linkstate(struct qib_pportdata *, u32, int); +int qib_set_linkstate(struct qib_pportdata *, u8); +int qib_set_mtu(struct qib_pportdata *, u16); +int qib_set_lid(struct qib_pportdata *, u32, u8); +void qib_hol_down(struct qib_pportdata *); +void qib_hol_init(struct qib_pportdata *); +void qib_hol_up(struct qib_pportdata *); +void qib_hol_event(struct timer_list *); +void qib_disable_after_error(struct qib_devdata *); +int qib_set_uevent_bits(struct qib_pportdata *, const int); + +/* for use in system calls, where we want to know device type, etc. */ +#define ctxt_fp(fp) \ + (((struct qib_filedata *)(fp)->private_data)->rcd) +#define subctxt_fp(fp) \ + (((struct qib_filedata *)(fp)->private_data)->subctxt) +#define tidcursor_fp(fp) \ + (((struct qib_filedata *)(fp)->private_data)->tidcursor) +#define user_sdma_queue_fp(fp) \ + (((struct qib_filedata *)(fp)->private_data)->pq) + +static inline struct qib_devdata *dd_from_ppd(struct qib_pportdata *ppd) +{ + return ppd->dd; +} + +static inline struct qib_devdata *dd_from_dev(struct qib_ibdev *dev) +{ + return container_of(dev, struct qib_devdata, verbs_dev); +} + +static inline struct qib_devdata *dd_from_ibdev(struct ib_device *ibdev) +{ + return dd_from_dev(to_idev(ibdev)); +} + +static inline struct qib_pportdata *ppd_from_ibp(struct qib_ibport *ibp) +{ + return container_of(ibp, struct qib_pportdata, ibport_data); +} + +static inline struct qib_ibport *to_iport(struct ib_device *ibdev, u32 port) +{ + struct qib_devdata *dd = dd_from_ibdev(ibdev); + u32 pidx = port - 1; /* IB number port from 1, hdw from 0 */ + + WARN_ON(pidx >= dd->num_pports); + return &dd->pport[pidx].ibport_data; +} + +/* + * values for dd->flags (_device_ related flags) and + */ +#define QIB_HAS_LINK_LATENCY 0x1 /* supports link latency (IB 1.2) */ +#define QIB_INITTED 0x2 /* chip and driver up and initted */ +#define QIB_DOING_RESET 0x4 /* in the middle of doing chip reset */ +#define QIB_PRESENT 0x8 /* chip accesses can be done */ +#define QIB_PIO_FLUSH_WC 0x10 /* Needs Write combining flush for PIO */ +#define QIB_HAS_THRESH_UPDATE 0x40 +#define QIB_HAS_SDMA_TIMEOUT 0x80 +#define QIB_USE_SPCL_TRIG 0x100 /* SpecialTrigger launch enabled */ +#define QIB_NODMA_RTAIL 0x200 /* rcvhdrtail register DMA enabled */ +#define QIB_HAS_INTX 0x800 /* Supports INTx interrupts */ +#define QIB_HAS_SEND_DMA 0x1000 /* Supports Send DMA */ +#define QIB_HAS_VLSUPP 0x2000 /* Supports multiple VLs; PBC different */ +#define QIB_HAS_HDRSUPP 0x4000 /* Supports header suppression */ +#define QIB_BADINTR 0x8000 /* severe interrupt problems */ +#define QIB_DCA_ENABLED 0x10000 /* Direct Cache Access enabled */ +#define QIB_HAS_QSFP 0x20000 /* device (card instance) has QSFP */ +#define QIB_SHUTDOWN 0x40000 /* device is shutting down */ + +/* + * values for ppd->lflags (_ib_port_ related flags) + */ +#define QIBL_LINKV 0x1 /* IB link state valid */ +#define QIBL_LINKDOWN 0x8 /* IB link is down */ +#define QIBL_LINKINIT 0x10 /* IB link level is up */ +#define QIBL_LINKARMED 0x20 /* IB link is ARMED */ +#define QIBL_LINKACTIVE 0x40 /* IB link is ACTIVE */ +/* leave a gap for more IB-link state */ +#define QIBL_IB_AUTONEG_INPROG 0x1000 /* non-IBTA DDR/QDR neg active */ +#define QIBL_IB_AUTONEG_FAILED 0x2000 /* non-IBTA DDR/QDR neg failed */ +#define QIBL_IB_LINK_DISABLED 0x4000 /* Linkdown-disable forced, + * Do not try to bring up */ +#define QIBL_IB_FORCE_NOTIFY 0x8000 /* force notify on next ib change */ + +/* IB dword length mask in PBC (lower 11 bits); same for all chips */ +#define QIB_PBC_LENGTH_MASK ((1 << 11) - 1) + + +/* ctxt_flag bit offsets */ + /* waiting for a packet to arrive */ +#define QIB_CTXT_WAITING_RCV 2 + /* master has not finished initializing */ +#define QIB_CTXT_MASTER_UNINIT 4 + /* waiting for an urgent packet to arrive */ +#define QIB_CTXT_WAITING_URG 5 + +/* free up any allocated data at closes */ +void qib_free_data(struct qib_ctxtdata *dd); +void qib_chg_pioavailkernel(struct qib_devdata *, unsigned, unsigned, + u32, struct qib_ctxtdata *); +struct qib_devdata *qib_init_iba7322_funcs(struct pci_dev *, + const struct pci_device_id *); +struct qib_devdata *qib_init_iba7220_funcs(struct pci_dev *, + const struct pci_device_id *); +struct qib_devdata *qib_init_iba6120_funcs(struct pci_dev *, + const struct pci_device_id *); +void qib_free_devdata(struct qib_devdata *); +struct qib_devdata *qib_alloc_devdata(struct pci_dev *pdev, size_t extra); + +#define QIB_TWSI_NO_DEV 0xFF +/* Below qib_twsi_ functions must be called with eep_lock held */ +int qib_twsi_reset(struct qib_devdata *dd); +int qib_twsi_blk_rd(struct qib_devdata *dd, int dev, int addr, void *buffer, + int len); +int qib_twsi_blk_wr(struct qib_devdata *dd, int dev, int addr, + const void *buffer, int len); +void qib_get_eeprom_info(struct qib_devdata *); +void qib_dump_lookup_output_queue(struct qib_devdata *); +void qib_force_pio_avail_update(struct qib_devdata *); +void qib_clear_symerror_on_linkup(struct timer_list *t); + +/* + * Set LED override, only the two LSBs have "public" meaning, but + * any non-zero value substitutes them for the Link and LinkTrain + * LED states. + */ +#define QIB_LED_PHYS 1 /* Physical (linktraining) GREEN LED */ +#define QIB_LED_LOG 2 /* Logical (link) YELLOW LED */ +void qib_set_led_override(struct qib_pportdata *ppd, unsigned int val); + +/* send dma routines */ +int qib_setup_sdma(struct qib_pportdata *); +void qib_teardown_sdma(struct qib_pportdata *); +void __qib_sdma_intr(struct qib_pportdata *); +void qib_sdma_intr(struct qib_pportdata *); +void qib_user_sdma_send_desc(struct qib_pportdata *dd, + struct list_head *pktlist); +int qib_sdma_verbs_send(struct qib_pportdata *, struct rvt_sge_state *, + u32, struct qib_verbs_txreq *); +/* ppd->sdma_lock should be locked before calling this. */ +int qib_sdma_make_progress(struct qib_pportdata *dd); + +/* must be called under qib_sdma_lock */ +static inline u16 qib_sdma_descq_freecnt(const struct qib_pportdata *ppd) +{ + return ppd->sdma_descq_cnt - + (ppd->sdma_descq_added - ppd->sdma_descq_removed) - 1; +} + +static inline int __qib_sdma_running(struct qib_pportdata *ppd) +{ + return ppd->sdma_state.current_state == qib_sdma_state_s99_running; +} +int qib_sdma_running(struct qib_pportdata *); +void dump_sdma_state(struct qib_pportdata *ppd); +void __qib_sdma_process_event(struct qib_pportdata *, enum qib_sdma_events); +void qib_sdma_process_event(struct qib_pportdata *, enum qib_sdma_events); + +/* + * number of words used for protocol header if not set by qib_userinit(); + */ +#define QIB_DFLT_RCVHDRSIZE 9 + +/* + * We need to be able to handle an IB header of at least 24 dwords. + * We need the rcvhdrq large enough to handle largest IB header, but + * still have room for a 2KB MTU standard IB packet. + * Additionally, some processor/memory controller combinations + * benefit quite strongly from having the DMA'ed data be cacheline + * aligned and a cacheline multiple, so we set the size to 32 dwords + * (2 64-byte primary cachelines for pretty much all processors of + * interest). The alignment hurts nothing, other than using somewhat + * more memory. + */ +#define QIB_RCVHDR_ENTSIZE 32 + +int qib_get_user_pages(unsigned long, size_t, struct page **); +void qib_release_user_pages(struct page **, size_t); +int qib_eeprom_read(struct qib_devdata *, u8, void *, int); +int qib_eeprom_write(struct qib_devdata *, u8, const void *, int); +u32 __iomem *qib_getsendbuf_range(struct qib_devdata *, u32 *, u32, u32); +void qib_sendbuf_done(struct qib_devdata *, unsigned); + +static inline void qib_clear_rcvhdrtail(const struct qib_ctxtdata *rcd) +{ + *((u64 *) rcd->rcvhdrtail_kvaddr) = 0ULL; +} + +static inline u32 qib_get_rcvhdrtail(const struct qib_ctxtdata *rcd) +{ + /* + * volatile because it's a DMA target from the chip, routine is + * inlined, and don't want register caching or reordering. + */ + return (u32) le64_to_cpu( + *((volatile __le64 *)rcd->rcvhdrtail_kvaddr)); /* DMA'ed */ +} + +/* + * sysfs interface. + */ + +extern const char ib_qib_version[]; +extern const struct attribute_group qib_attr_group; +extern const struct attribute_group *qib_attr_port_groups[]; + +int qib_device_create(struct qib_devdata *); +void qib_device_remove(struct qib_devdata *); + +/* Hook for sysfs read of QSFP */ +extern int qib_qsfp_dump(struct qib_pportdata *ppd, char *buf, int len); + +int __init qib_init_qibfs(void); +int __exit qib_exit_qibfs(void); + +int qibfs_add(struct qib_devdata *); +int qibfs_remove(struct qib_devdata *); + +int qib_pcie_init(struct pci_dev *, const struct pci_device_id *); +int qib_pcie_ddinit(struct qib_devdata *, struct pci_dev *, + const struct pci_device_id *); +void qib_pcie_ddcleanup(struct qib_devdata *); +int qib_pcie_params(struct qib_devdata *dd, u32 minw, u32 *nent); +void qib_free_irq(struct qib_devdata *dd); +int qib_reinit_intr(struct qib_devdata *dd); +void qib_pcie_getcmd(struct qib_devdata *, u16 *, u8 *, u8 *); +void qib_pcie_reenable(struct qib_devdata *, u16, u8, u8); +/* interrupts for device */ +u64 qib_int_counter(struct qib_devdata *); +/* interrupt for all devices */ +u64 qib_sps_ints(void); + +/* + * dma_addr wrappers - all 0's invalid for hw + */ +int qib_map_page(struct pci_dev *d, struct page *p, dma_addr_t *daddr); +struct pci_dev *qib_get_pci_dev(struct rvt_dev_info *rdi); + +/* + * Flush write combining store buffers (if present) and perform a write + * barrier. + */ +static inline void qib_flush_wc(void) +{ +#if defined(CONFIG_X86_64) + asm volatile("sfence" : : : "memory"); +#else + wmb(); /* no reorder around wc flush */ +#endif +} + +/* global module parameter variables */ +extern unsigned qib_ibmtu; +extern ushort qib_cfgctxts; +extern ushort qib_num_cfg_vls; +extern ushort qib_mini_init; /* If set, do few (ideally 0) writes to chip */ +extern unsigned qib_n_krcv_queues; +extern unsigned qib_sdma_fetch_arb; +extern unsigned qib_compat_ddr_negotiate; +extern int qib_special_trigger; +extern unsigned qib_numa_aware; + +extern struct mutex qib_mutex; + +/* Number of seconds before our card status check... */ +#define STATUS_TIMEOUT 60 + +#define QIB_DRV_NAME "ib_qib" +#define QIB_USER_MINOR_BASE 0 +#define QIB_TRACE_MINOR 127 +#define QIB_DIAGPKT_MINOR 128 +#define QIB_DIAG_MINOR_BASE 129 +#define QIB_NMINORS 255 + +#define PCI_VENDOR_ID_PATHSCALE 0x1fc1 +#define PCI_VENDOR_ID_QLOGIC 0x1077 +#define PCI_DEVICE_ID_QLOGIC_IB_6120 0x10 +#define PCI_DEVICE_ID_QLOGIC_IB_7220 0x7220 +#define PCI_DEVICE_ID_QLOGIC_IB_7322 0x7322 + +/* + * qib_early_err is used (only!) to print early errors before devdata is + * allocated, or when dd->pcidev may not be valid, and at the tail end of + * cleanup when devdata may have been freed, etc. qib_dev_porterr is + * the same as qib_dev_err, but is used when the message really needs + * the IB port# to be definitive as to what's happening.. + * All of these go to the trace log, and the trace log entry is done + * first to avoid possible serial port delays from printk. + */ +#define qib_early_err(dev, fmt, ...) \ + dev_err(dev, fmt, ##__VA_ARGS__) + +#define qib_dev_err(dd, fmt, ...) \ + dev_err(&(dd)->pcidev->dev, "%s: " fmt, \ + rvt_get_ibdev_name(&(dd)->verbs_dev.rdi), ##__VA_ARGS__) + +#define qib_dev_warn(dd, fmt, ...) \ + dev_warn(&(dd)->pcidev->dev, "%s: " fmt, \ + rvt_get_ibdev_name(&(dd)->verbs_dev.rdi), ##__VA_ARGS__) + +#define qib_dev_porterr(dd, port, fmt, ...) \ + dev_err(&(dd)->pcidev->dev, "%s: IB%u:%u " fmt, \ + rvt_get_ibdev_name(&(dd)->verbs_dev.rdi), (dd)->unit, (port), \ + ##__VA_ARGS__) + +#define qib_devinfo(pcidev, fmt, ...) \ + dev_info(&(pcidev)->dev, fmt, ##__VA_ARGS__) + +/* + * this is used for formatting hw error messages... + */ +struct qib_hwerror_msgs { + u64 mask; + const char *msg; + size_t sz; +}; + +#define QLOGIC_IB_HWE_MSG(a, b) { .mask = a, .msg = b } + +/* in qib_intr.c... */ +void qib_format_hwerrors(u64 hwerrs, + const struct qib_hwerror_msgs *hwerrmsgs, + size_t nhwerrmsgs, char *msg, size_t lmsg); + +void qib_stop_send_queue(struct rvt_qp *qp); +void qib_quiesce_qp(struct rvt_qp *qp); +void qib_flush_qp_waiters(struct rvt_qp *qp); +int qib_mtu_to_path_mtu(u32 mtu); +u32 qib_mtu_from_qp(struct rvt_dev_info *rdi, struct rvt_qp *qp, u32 pmtu); +void qib_notify_error_qp(struct rvt_qp *qp); +int qib_get_pmtu_from_attr(struct rvt_dev_info *rdi, struct rvt_qp *qp, + struct ib_qp_attr *attr); + +#endif /* _QIB_KERNEL_H */ diff --git a/drivers/infiniband/hw/qib/qib_6120_regs.h b/drivers/infiniband/hw/qib/qib_6120_regs.h new file mode 100644 index 000000000..e16cb6f7d --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_6120_regs.h @@ -0,0 +1,977 @@ +/* + * Copyright (c) 2008, 2009, 2010 QLogic Corporation. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +/* This file is mechanically generated from RTL. Any hand-edits will be lost! */ + +#define QIB_6120_Revision_OFFS 0x0 +#define QIB_6120_Revision_R_Simulator_LSB 0x3F +#define QIB_6120_Revision_R_Simulator_RMASK 0x1 +#define QIB_6120_Revision_Reserved_LSB 0x28 +#define QIB_6120_Revision_Reserved_RMASK 0x7FFFFF +#define QIB_6120_Revision_BoardID_LSB 0x20 +#define QIB_6120_Revision_BoardID_RMASK 0xFF +#define QIB_6120_Revision_R_SW_LSB 0x18 +#define QIB_6120_Revision_R_SW_RMASK 0xFF +#define QIB_6120_Revision_R_Arch_LSB 0x10 +#define QIB_6120_Revision_R_Arch_RMASK 0xFF +#define QIB_6120_Revision_R_ChipRevMajor_LSB 0x8 +#define QIB_6120_Revision_R_ChipRevMajor_RMASK 0xFF +#define QIB_6120_Revision_R_ChipRevMinor_LSB 0x0 +#define QIB_6120_Revision_R_ChipRevMinor_RMASK 0xFF + +#define QIB_6120_Control_OFFS 0x8 +#define QIB_6120_Control_TxLatency_LSB 0x4 +#define QIB_6120_Control_TxLatency_RMASK 0x1 +#define QIB_6120_Control_PCIERetryBufDiagEn_LSB 0x3 +#define QIB_6120_Control_PCIERetryBufDiagEn_RMASK 0x1 +#define QIB_6120_Control_LinkEn_LSB 0x2 +#define QIB_6120_Control_LinkEn_RMASK 0x1 +#define QIB_6120_Control_FreezeMode_LSB 0x1 +#define QIB_6120_Control_FreezeMode_RMASK 0x1 +#define QIB_6120_Control_SyncReset_LSB 0x0 +#define QIB_6120_Control_SyncReset_RMASK 0x1 + +#define QIB_6120_PageAlign_OFFS 0x10 + +#define QIB_6120_PortCnt_OFFS 0x18 + +#define QIB_6120_SendRegBase_OFFS 0x30 + +#define QIB_6120_UserRegBase_OFFS 0x38 + +#define QIB_6120_CntrRegBase_OFFS 0x40 + +#define QIB_6120_Scratch_OFFS 0x48 +#define QIB_6120_Scratch_TopHalf_LSB 0x20 +#define QIB_6120_Scratch_TopHalf_RMASK 0xFFFFFFFF +#define QIB_6120_Scratch_BottomHalf_LSB 0x0 +#define QIB_6120_Scratch_BottomHalf_RMASK 0xFFFFFFFF + +#define QIB_6120_IntBlocked_OFFS 0x60 +#define QIB_6120_IntBlocked_ErrorIntBlocked_LSB 0x1F +#define QIB_6120_IntBlocked_ErrorIntBlocked_RMASK 0x1 +#define QIB_6120_IntBlocked_PioSetIntBlocked_LSB 0x1E +#define QIB_6120_IntBlocked_PioSetIntBlocked_RMASK 0x1 +#define QIB_6120_IntBlocked_PioBufAvailIntBlocked_LSB 0x1D +#define QIB_6120_IntBlocked_PioBufAvailIntBlocked_RMASK 0x1 +#define QIB_6120_IntBlocked_assertGPIOIntBlocked_LSB 0x1C +#define QIB_6120_IntBlocked_assertGPIOIntBlocked_RMASK 0x1 +#define QIB_6120_IntBlocked_Reserved_LSB 0xF +#define QIB_6120_IntBlocked_Reserved_RMASK 0x1FFF +#define QIB_6120_IntBlocked_RcvAvail4IntBlocked_LSB 0x10 +#define QIB_6120_IntBlocked_RcvAvail4IntBlocked_RMASK 0x1 +#define QIB_6120_IntBlocked_RcvAvail3IntBlocked_LSB 0xF +#define QIB_6120_IntBlocked_RcvAvail3IntBlocked_RMASK 0x1 +#define QIB_6120_IntBlocked_RcvAvail2IntBlocked_LSB 0xE +#define QIB_6120_IntBlocked_RcvAvail2IntBlocked_RMASK 0x1 +#define QIB_6120_IntBlocked_RcvAvail1IntBlocked_LSB 0xD +#define QIB_6120_IntBlocked_RcvAvail1IntBlocked_RMASK 0x1 +#define QIB_6120_IntBlocked_RcvAvail0IntBlocked_LSB 0xC +#define QIB_6120_IntBlocked_RcvAvail0IntBlocked_RMASK 0x1 +#define QIB_6120_IntBlocked_Reserved1_LSB 0x5 +#define QIB_6120_IntBlocked_Reserved1_RMASK 0x7F +#define QIB_6120_IntBlocked_RcvUrg4IntBlocked_LSB 0x4 +#define QIB_6120_IntBlocked_RcvUrg4IntBlocked_RMASK 0x1 +#define QIB_6120_IntBlocked_RcvUrg3IntBlocked_LSB 0x3 +#define QIB_6120_IntBlocked_RcvUrg3IntBlocked_RMASK 0x1 +#define QIB_6120_IntBlocked_RcvUrg2IntBlocked_LSB 0x2 +#define QIB_6120_IntBlocked_RcvUrg2IntBlocked_RMASK 0x1 +#define QIB_6120_IntBlocked_RcvUrg1IntBlocked_LSB 0x1 +#define QIB_6120_IntBlocked_RcvUrg1IntBlocked_RMASK 0x1 +#define QIB_6120_IntBlocked_RcvUrg0IntBlocked_LSB 0x0 +#define QIB_6120_IntBlocked_RcvUrg0IntBlocked_RMASK 0x1 + +#define QIB_6120_IntMask_OFFS 0x68 +#define QIB_6120_IntMask_ErrorIntMask_LSB 0x1F +#define QIB_6120_IntMask_ErrorIntMask_RMASK 0x1 +#define QIB_6120_IntMask_PioSetIntMask_LSB 0x1E +#define QIB_6120_IntMask_PioSetIntMask_RMASK 0x1 +#define QIB_6120_IntMask_PioBufAvailIntMask_LSB 0x1D +#define QIB_6120_IntMask_PioBufAvailIntMask_RMASK 0x1 +#define QIB_6120_IntMask_assertGPIOIntMask_LSB 0x1C +#define QIB_6120_IntMask_assertGPIOIntMask_RMASK 0x1 +#define QIB_6120_IntMask_Reserved_LSB 0x11 +#define QIB_6120_IntMask_Reserved_RMASK 0x7FF +#define QIB_6120_IntMask_RcvAvail4IntMask_LSB 0x10 +#define QIB_6120_IntMask_RcvAvail4IntMask_RMASK 0x1 +#define QIB_6120_IntMask_RcvAvail3IntMask_LSB 0xF +#define QIB_6120_IntMask_RcvAvail3IntMask_RMASK 0x1 +#define QIB_6120_IntMask_RcvAvail2IntMask_LSB 0xE +#define QIB_6120_IntMask_RcvAvail2IntMask_RMASK 0x1 +#define QIB_6120_IntMask_RcvAvail1IntMask_LSB 0xD +#define QIB_6120_IntMask_RcvAvail1IntMask_RMASK 0x1 +#define QIB_6120_IntMask_RcvAvail0IntMask_LSB 0xC +#define QIB_6120_IntMask_RcvAvail0IntMask_RMASK 0x1 +#define QIB_6120_IntMask_Reserved1_LSB 0x5 +#define QIB_6120_IntMask_Reserved1_RMASK 0x7F +#define QIB_6120_IntMask_RcvUrg4IntMask_LSB 0x4 +#define QIB_6120_IntMask_RcvUrg4IntMask_RMASK 0x1 +#define QIB_6120_IntMask_RcvUrg3IntMask_LSB 0x3 +#define QIB_6120_IntMask_RcvUrg3IntMask_RMASK 0x1 +#define QIB_6120_IntMask_RcvUrg2IntMask_LSB 0x2 +#define QIB_6120_IntMask_RcvUrg2IntMask_RMASK 0x1 +#define QIB_6120_IntMask_RcvUrg1IntMask_LSB 0x1 +#define QIB_6120_IntMask_RcvUrg1IntMask_RMASK 0x1 +#define QIB_6120_IntMask_RcvUrg0IntMask_LSB 0x0 +#define QIB_6120_IntMask_RcvUrg0IntMask_RMASK 0x1 + +#define QIB_6120_IntStatus_OFFS 0x70 +#define QIB_6120_IntStatus_Error_LSB 0x1F +#define QIB_6120_IntStatus_Error_RMASK 0x1 +#define QIB_6120_IntStatus_PioSent_LSB 0x1E +#define QIB_6120_IntStatus_PioSent_RMASK 0x1 +#define QIB_6120_IntStatus_PioBufAvail_LSB 0x1D +#define QIB_6120_IntStatus_PioBufAvail_RMASK 0x1 +#define QIB_6120_IntStatus_assertGPIO_LSB 0x1C +#define QIB_6120_IntStatus_assertGPIO_RMASK 0x1 +#define QIB_6120_IntStatus_Reserved_LSB 0xF +#define QIB_6120_IntStatus_Reserved_RMASK 0x1FFF +#define QIB_6120_IntStatus_RcvAvail4_LSB 0x10 +#define QIB_6120_IntStatus_RcvAvail4_RMASK 0x1 +#define QIB_6120_IntStatus_RcvAvail3_LSB 0xF +#define QIB_6120_IntStatus_RcvAvail3_RMASK 0x1 +#define QIB_6120_IntStatus_RcvAvail2_LSB 0xE +#define QIB_6120_IntStatus_RcvAvail2_RMASK 0x1 +#define QIB_6120_IntStatus_RcvAvail1_LSB 0xD +#define QIB_6120_IntStatus_RcvAvail1_RMASK 0x1 +#define QIB_6120_IntStatus_RcvAvail0_LSB 0xC +#define QIB_6120_IntStatus_RcvAvail0_RMASK 0x1 +#define QIB_6120_IntStatus_Reserved1_LSB 0x5 +#define QIB_6120_IntStatus_Reserved1_RMASK 0x7F +#define QIB_6120_IntStatus_RcvUrg4_LSB 0x4 +#define QIB_6120_IntStatus_RcvUrg4_RMASK 0x1 +#define QIB_6120_IntStatus_RcvUrg3_LSB 0x3 +#define QIB_6120_IntStatus_RcvUrg3_RMASK 0x1 +#define QIB_6120_IntStatus_RcvUrg2_LSB 0x2 +#define QIB_6120_IntStatus_RcvUrg2_RMASK 0x1 +#define QIB_6120_IntStatus_RcvUrg1_LSB 0x1 +#define QIB_6120_IntStatus_RcvUrg1_RMASK 0x1 +#define QIB_6120_IntStatus_RcvUrg0_LSB 0x0 +#define QIB_6120_IntStatus_RcvUrg0_RMASK 0x1 + +#define QIB_6120_IntClear_OFFS 0x78 +#define QIB_6120_IntClear_ErrorIntClear_LSB 0x1F +#define QIB_6120_IntClear_ErrorIntClear_RMASK 0x1 +#define QIB_6120_IntClear_PioSetIntClear_LSB 0x1E +#define QIB_6120_IntClear_PioSetIntClear_RMASK 0x1 +#define QIB_6120_IntClear_PioBufAvailIntClear_LSB 0x1D +#define QIB_6120_IntClear_PioBufAvailIntClear_RMASK 0x1 +#define QIB_6120_IntClear_assertGPIOIntClear_LSB 0x1C +#define QIB_6120_IntClear_assertGPIOIntClear_RMASK 0x1 +#define QIB_6120_IntClear_Reserved_LSB 0xF +#define QIB_6120_IntClear_Reserved_RMASK 0x1FFF +#define QIB_6120_IntClear_RcvAvail4IntClear_LSB 0x10 +#define QIB_6120_IntClear_RcvAvail4IntClear_RMASK 0x1 +#define QIB_6120_IntClear_RcvAvail3IntClear_LSB 0xF +#define QIB_6120_IntClear_RcvAvail3IntClear_RMASK 0x1 +#define QIB_6120_IntClear_RcvAvail2IntClear_LSB 0xE +#define QIB_6120_IntClear_RcvAvail2IntClear_RMASK 0x1 +#define QIB_6120_IntClear_RcvAvail1IntClear_LSB 0xD +#define QIB_6120_IntClear_RcvAvail1IntClear_RMASK 0x1 +#define QIB_6120_IntClear_RcvAvail0IntClear_LSB 0xC +#define QIB_6120_IntClear_RcvAvail0IntClear_RMASK 0x1 +#define QIB_6120_IntClear_Reserved1_LSB 0x5 +#define QIB_6120_IntClear_Reserved1_RMASK 0x7F +#define QIB_6120_IntClear_RcvUrg4IntClear_LSB 0x4 +#define QIB_6120_IntClear_RcvUrg4IntClear_RMASK 0x1 +#define QIB_6120_IntClear_RcvUrg3IntClear_LSB 0x3 +#define QIB_6120_IntClear_RcvUrg3IntClear_RMASK 0x1 +#define QIB_6120_IntClear_RcvUrg2IntClear_LSB 0x2 +#define QIB_6120_IntClear_RcvUrg2IntClear_RMASK 0x1 +#define QIB_6120_IntClear_RcvUrg1IntClear_LSB 0x1 +#define QIB_6120_IntClear_RcvUrg1IntClear_RMASK 0x1 +#define QIB_6120_IntClear_RcvUrg0IntClear_LSB 0x0 +#define QIB_6120_IntClear_RcvUrg0IntClear_RMASK 0x1 + +#define QIB_6120_ErrMask_OFFS 0x80 +#define QIB_6120_ErrMask_Reserved_LSB 0x34 +#define QIB_6120_ErrMask_Reserved_RMASK 0xFFF +#define QIB_6120_ErrMask_HardwareErrMask_LSB 0x33 +#define QIB_6120_ErrMask_HardwareErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_ResetNegatedMask_LSB 0x32 +#define QIB_6120_ErrMask_ResetNegatedMask_RMASK 0x1 +#define QIB_6120_ErrMask_InvalidAddrErrMask_LSB 0x31 +#define QIB_6120_ErrMask_InvalidAddrErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_IBStatusChangedMask_LSB 0x30 +#define QIB_6120_ErrMask_IBStatusChangedMask_RMASK 0x1 +#define QIB_6120_ErrMask_Reserved1_LSB 0x26 +#define QIB_6120_ErrMask_Reserved1_RMASK 0x3FF +#define QIB_6120_ErrMask_SendUnsupportedVLErrMask_LSB 0x25 +#define QIB_6120_ErrMask_SendUnsupportedVLErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_SendUnexpectedPktNumErrMask_LSB 0x24 +#define QIB_6120_ErrMask_SendUnexpectedPktNumErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_SendPioArmLaunchErrMask_LSB 0x23 +#define QIB_6120_ErrMask_SendPioArmLaunchErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_SendDroppedDataPktErrMask_LSB 0x22 +#define QIB_6120_ErrMask_SendDroppedDataPktErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_SendDroppedSmpPktErrMask_LSB 0x21 +#define QIB_6120_ErrMask_SendDroppedSmpPktErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_SendPktLenErrMask_LSB 0x20 +#define QIB_6120_ErrMask_SendPktLenErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_SendUnderRunErrMask_LSB 0x1F +#define QIB_6120_ErrMask_SendUnderRunErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_SendMaxPktLenErrMask_LSB 0x1E +#define QIB_6120_ErrMask_SendMaxPktLenErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_SendMinPktLenErrMask_LSB 0x1D +#define QIB_6120_ErrMask_SendMinPktLenErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_Reserved2_LSB 0x12 +#define QIB_6120_ErrMask_Reserved2_RMASK 0x7FF +#define QIB_6120_ErrMask_RcvIBLostLinkErrMask_LSB 0x11 +#define QIB_6120_ErrMask_RcvIBLostLinkErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_RcvHdrErrMask_LSB 0x10 +#define QIB_6120_ErrMask_RcvHdrErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_RcvHdrLenErrMask_LSB 0xF +#define QIB_6120_ErrMask_RcvHdrLenErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_RcvBadTidErrMask_LSB 0xE +#define QIB_6120_ErrMask_RcvBadTidErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_RcvHdrFullErrMask_LSB 0xD +#define QIB_6120_ErrMask_RcvHdrFullErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_RcvEgrFullErrMask_LSB 0xC +#define QIB_6120_ErrMask_RcvEgrFullErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_RcvBadVersionErrMask_LSB 0xB +#define QIB_6120_ErrMask_RcvBadVersionErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_RcvIBFlowErrMask_LSB 0xA +#define QIB_6120_ErrMask_RcvIBFlowErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_RcvEBPErrMask_LSB 0x9 +#define QIB_6120_ErrMask_RcvEBPErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_RcvUnsupportedVLErrMask_LSB 0x8 +#define QIB_6120_ErrMask_RcvUnsupportedVLErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_RcvUnexpectedCharErrMask_LSB 0x7 +#define QIB_6120_ErrMask_RcvUnexpectedCharErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_RcvShortPktLenErrMask_LSB 0x6 +#define QIB_6120_ErrMask_RcvShortPktLenErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_RcvLongPktLenErrMask_LSB 0x5 +#define QIB_6120_ErrMask_RcvLongPktLenErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_RcvMaxPktLenErrMask_LSB 0x4 +#define QIB_6120_ErrMask_RcvMaxPktLenErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_RcvMinPktLenErrMask_LSB 0x3 +#define QIB_6120_ErrMask_RcvMinPktLenErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_RcvICRCErrMask_LSB 0x2 +#define QIB_6120_ErrMask_RcvICRCErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_RcvVCRCErrMask_LSB 0x1 +#define QIB_6120_ErrMask_RcvVCRCErrMask_RMASK 0x1 +#define QIB_6120_ErrMask_RcvFormatErrMask_LSB 0x0 +#define QIB_6120_ErrMask_RcvFormatErrMask_RMASK 0x1 + +#define QIB_6120_ErrStatus_OFFS 0x88 +#define QIB_6120_ErrStatus_Reserved_LSB 0x34 +#define QIB_6120_ErrStatus_Reserved_RMASK 0xFFF +#define QIB_6120_ErrStatus_HardwareErr_LSB 0x33 +#define QIB_6120_ErrStatus_HardwareErr_RMASK 0x1 +#define QIB_6120_ErrStatus_ResetNegated_LSB 0x32 +#define QIB_6120_ErrStatus_ResetNegated_RMASK 0x1 +#define QIB_6120_ErrStatus_InvalidAddrErr_LSB 0x31 +#define QIB_6120_ErrStatus_InvalidAddrErr_RMASK 0x1 +#define QIB_6120_ErrStatus_IBStatusChanged_LSB 0x30 +#define QIB_6120_ErrStatus_IBStatusChanged_RMASK 0x1 +#define QIB_6120_ErrStatus_Reserved1_LSB 0x26 +#define QIB_6120_ErrStatus_Reserved1_RMASK 0x3FF +#define QIB_6120_ErrStatus_SendUnsupportedVLErr_LSB 0x25 +#define QIB_6120_ErrStatus_SendUnsupportedVLErr_RMASK 0x1 +#define QIB_6120_ErrStatus_SendUnexpectedPktNumErr_LSB 0x24 +#define QIB_6120_ErrStatus_SendUnexpectedPktNumErr_RMASK 0x1 +#define QIB_6120_ErrStatus_SendPioArmLaunchErr_LSB 0x23 +#define QIB_6120_ErrStatus_SendPioArmLaunchErr_RMASK 0x1 +#define QIB_6120_ErrStatus_SendDroppedDataPktErr_LSB 0x22 +#define QIB_6120_ErrStatus_SendDroppedDataPktErr_RMASK 0x1 +#define QIB_6120_ErrStatus_SendDroppedSmpPktErr_LSB 0x21 +#define QIB_6120_ErrStatus_SendDroppedSmpPktErr_RMASK 0x1 +#define QIB_6120_ErrStatus_SendPktLenErr_LSB 0x20 +#define QIB_6120_ErrStatus_SendPktLenErr_RMASK 0x1 +#define QIB_6120_ErrStatus_SendUnderRunErr_LSB 0x1F +#define QIB_6120_ErrStatus_SendUnderRunErr_RMASK 0x1 +#define QIB_6120_ErrStatus_SendMaxPktLenErr_LSB 0x1E +#define QIB_6120_ErrStatus_SendMaxPktLenErr_RMASK 0x1 +#define QIB_6120_ErrStatus_SendMinPktLenErr_LSB 0x1D +#define QIB_6120_ErrStatus_SendMinPktLenErr_RMASK 0x1 +#define QIB_6120_ErrStatus_Reserved2_LSB 0x12 +#define QIB_6120_ErrStatus_Reserved2_RMASK 0x7FF +#define QIB_6120_ErrStatus_RcvIBLostLinkErr_LSB 0x11 +#define QIB_6120_ErrStatus_RcvIBLostLinkErr_RMASK 0x1 +#define QIB_6120_ErrStatus_RcvHdrErr_LSB 0x10 +#define QIB_6120_ErrStatus_RcvHdrErr_RMASK 0x1 +#define QIB_6120_ErrStatus_RcvHdrLenErr_LSB 0xF +#define QIB_6120_ErrStatus_RcvHdrLenErr_RMASK 0x1 +#define QIB_6120_ErrStatus_RcvBadTidErr_LSB 0xE +#define QIB_6120_ErrStatus_RcvBadTidErr_RMASK 0x1 +#define QIB_6120_ErrStatus_RcvHdrFullErr_LSB 0xD +#define QIB_6120_ErrStatus_RcvHdrFullErr_RMASK 0x1 +#define QIB_6120_ErrStatus_RcvEgrFullErr_LSB 0xC +#define QIB_6120_ErrStatus_RcvEgrFullErr_RMASK 0x1 +#define QIB_6120_ErrStatus_RcvBadVersionErr_LSB 0xB +#define QIB_6120_ErrStatus_RcvBadVersionErr_RMASK 0x1 +#define QIB_6120_ErrStatus_RcvIBFlowErr_LSB 0xA +#define QIB_6120_ErrStatus_RcvIBFlowErr_RMASK 0x1 +#define QIB_6120_ErrStatus_RcvEBPErr_LSB 0x9 +#define QIB_6120_ErrStatus_RcvEBPErr_RMASK 0x1 +#define QIB_6120_ErrStatus_RcvUnsupportedVLErr_LSB 0x8 +#define QIB_6120_ErrStatus_RcvUnsupportedVLErr_RMASK 0x1 +#define QIB_6120_ErrStatus_RcvUnexpectedCharErr_LSB 0x7 +#define QIB_6120_ErrStatus_RcvUnexpectedCharErr_RMASK 0x1 +#define QIB_6120_ErrStatus_RcvShortPktLenErr_LSB 0x6 +#define QIB_6120_ErrStatus_RcvShortPktLenErr_RMASK 0x1 +#define QIB_6120_ErrStatus_RcvLongPktLenErr_LSB 0x5 +#define QIB_6120_ErrStatus_RcvLongPktLenErr_RMASK 0x1 +#define QIB_6120_ErrStatus_RcvMaxPktLenErr_LSB 0x4 +#define QIB_6120_ErrStatus_RcvMaxPktLenErr_RMASK 0x1 +#define QIB_6120_ErrStatus_RcvMinPktLenErr_LSB 0x3 +#define QIB_6120_ErrStatus_RcvMinPktLenErr_RMASK 0x1 +#define QIB_6120_ErrStatus_RcvICRCErr_LSB 0x2 +#define QIB_6120_ErrStatus_RcvICRCErr_RMASK 0x1 +#define QIB_6120_ErrStatus_RcvVCRCErr_LSB 0x1 +#define QIB_6120_ErrStatus_RcvVCRCErr_RMASK 0x1 +#define QIB_6120_ErrStatus_RcvFormatErr_LSB 0x0 +#define QIB_6120_ErrStatus_RcvFormatErr_RMASK 0x1 + +#define QIB_6120_ErrClear_OFFS 0x90 +#define QIB_6120_ErrClear_Reserved_LSB 0x34 +#define QIB_6120_ErrClear_Reserved_RMASK 0xFFF +#define QIB_6120_ErrClear_HardwareErrClear_LSB 0x33 +#define QIB_6120_ErrClear_HardwareErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_ResetNegatedClear_LSB 0x32 +#define QIB_6120_ErrClear_ResetNegatedClear_RMASK 0x1 +#define QIB_6120_ErrClear_InvalidAddrErrClear_LSB 0x31 +#define QIB_6120_ErrClear_InvalidAddrErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_IBStatusChangedClear_LSB 0x30 +#define QIB_6120_ErrClear_IBStatusChangedClear_RMASK 0x1 +#define QIB_6120_ErrClear_Reserved1_LSB 0x26 +#define QIB_6120_ErrClear_Reserved1_RMASK 0x3FF +#define QIB_6120_ErrClear_SendUnsupportedVLErrClear_LSB 0x25 +#define QIB_6120_ErrClear_SendUnsupportedVLErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_SendUnexpectedPktNumErrClear_LSB 0x24 +#define QIB_6120_ErrClear_SendUnexpectedPktNumErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_SendPioArmLaunchErrClear_LSB 0x23 +#define QIB_6120_ErrClear_SendPioArmLaunchErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_SendDroppedDataPktErrClear_LSB 0x22 +#define QIB_6120_ErrClear_SendDroppedDataPktErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_SendDroppedSmpPktErrClear_LSB 0x21 +#define QIB_6120_ErrClear_SendDroppedSmpPktErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_SendPktLenErrClear_LSB 0x20 +#define QIB_6120_ErrClear_SendPktLenErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_SendUnderRunErrClear_LSB 0x1F +#define QIB_6120_ErrClear_SendUnderRunErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_SendMaxPktLenErrClear_LSB 0x1E +#define QIB_6120_ErrClear_SendMaxPktLenErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_SendMinPktLenErrClear_LSB 0x1D +#define QIB_6120_ErrClear_SendMinPktLenErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_Reserved2_LSB 0x12 +#define QIB_6120_ErrClear_Reserved2_RMASK 0x7FF +#define QIB_6120_ErrClear_RcvIBLostLinkErrClear_LSB 0x11 +#define QIB_6120_ErrClear_RcvIBLostLinkErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_RcvHdrErrClear_LSB 0x10 +#define QIB_6120_ErrClear_RcvHdrErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_RcvHdrLenErrClear_LSB 0xF +#define QIB_6120_ErrClear_RcvHdrLenErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_RcvBadTidErrClear_LSB 0xE +#define QIB_6120_ErrClear_RcvBadTidErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_RcvHdrFullErrClear_LSB 0xD +#define QIB_6120_ErrClear_RcvHdrFullErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_RcvEgrFullErrClear_LSB 0xC +#define QIB_6120_ErrClear_RcvEgrFullErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_RcvBadVersionErrClear_LSB 0xB +#define QIB_6120_ErrClear_RcvBadVersionErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_RcvIBFlowErrClear_LSB 0xA +#define QIB_6120_ErrClear_RcvIBFlowErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_RcvEBPErrClear_LSB 0x9 +#define QIB_6120_ErrClear_RcvEBPErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_RcvUnsupportedVLErrClear_LSB 0x8 +#define QIB_6120_ErrClear_RcvUnsupportedVLErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_RcvUnexpectedCharErrClear_LSB 0x7 +#define QIB_6120_ErrClear_RcvUnexpectedCharErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_RcvShortPktLenErrClear_LSB 0x6 +#define QIB_6120_ErrClear_RcvShortPktLenErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_RcvLongPktLenErrClear_LSB 0x5 +#define QIB_6120_ErrClear_RcvLongPktLenErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_RcvMaxPktLenErrClear_LSB 0x4 +#define QIB_6120_ErrClear_RcvMaxPktLenErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_RcvMinPktLenErrClear_LSB 0x3 +#define QIB_6120_ErrClear_RcvMinPktLenErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_RcvICRCErrClear_LSB 0x2 +#define QIB_6120_ErrClear_RcvICRCErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_RcvVCRCErrClear_LSB 0x1 +#define QIB_6120_ErrClear_RcvVCRCErrClear_RMASK 0x1 +#define QIB_6120_ErrClear_RcvFormatErrClear_LSB 0x0 +#define QIB_6120_ErrClear_RcvFormatErrClear_RMASK 0x1 + +#define QIB_6120_HwErrMask_OFFS 0x98 +#define QIB_6120_HwErrMask_IBCBusFromSPCParityErrMask_LSB 0x3F +#define QIB_6120_HwErrMask_IBCBusFromSPCParityErrMask_RMASK 0x1 +#define QIB_6120_HwErrMask_IBCBusToSPCParityErrMask_LSB 0x3E +#define QIB_6120_HwErrMask_IBCBusToSPCParityErrMask_RMASK 0x1 +#define QIB_6120_HwErrMask_Reserved_LSB 0x3D +#define QIB_6120_HwErrMask_Reserved_RMASK 0x1 +#define QIB_6120_HwErrMask_IBSerdesPClkNotDetectMask_LSB 0x3C +#define QIB_6120_HwErrMask_IBSerdesPClkNotDetectMask_RMASK 0x1 +#define QIB_6120_HwErrMask_PCIESerdesQ0PClkNotDetectMask_LSB 0x3B +#define QIB_6120_HwErrMask_PCIESerdesQ0PClkNotDetectMask_RMASK 0x1 +#define QIB_6120_HwErrMask_PCIESerdesQ1PClkNotDetectMask_LSB 0x3A +#define QIB_6120_HwErrMask_PCIESerdesQ1PClkNotDetectMask_RMASK 0x1 +#define QIB_6120_HwErrMask_Reserved1_LSB 0x39 +#define QIB_6120_HwErrMask_Reserved1_RMASK 0x1 +#define QIB_6120_HwErrMask_IBPLLrfSlipMask_LSB 0x38 +#define QIB_6120_HwErrMask_IBPLLrfSlipMask_RMASK 0x1 +#define QIB_6120_HwErrMask_IBPLLfbSlipMask_LSB 0x37 +#define QIB_6120_HwErrMask_IBPLLfbSlipMask_RMASK 0x1 +#define QIB_6120_HwErrMask_PowerOnBISTFailedMask_LSB 0x36 +#define QIB_6120_HwErrMask_PowerOnBISTFailedMask_RMASK 0x1 +#define QIB_6120_HwErrMask_Reserved2_LSB 0x33 +#define QIB_6120_HwErrMask_Reserved2_RMASK 0x7 +#define QIB_6120_HwErrMask_RXEMemParityErrMask_LSB 0x2C +#define QIB_6120_HwErrMask_RXEMemParityErrMask_RMASK 0x7F +#define QIB_6120_HwErrMask_TXEMemParityErrMask_LSB 0x28 +#define QIB_6120_HwErrMask_TXEMemParityErrMask_RMASK 0xF +#define QIB_6120_HwErrMask_Reserved3_LSB 0x22 +#define QIB_6120_HwErrMask_Reserved3_RMASK 0x3F +#define QIB_6120_HwErrMask_PCIeBusParityErrMask_LSB 0x1F +#define QIB_6120_HwErrMask_PCIeBusParityErrMask_RMASK 0x7 +#define QIB_6120_HwErrMask_PcieCplTimeoutMask_LSB 0x1E +#define QIB_6120_HwErrMask_PcieCplTimeoutMask_RMASK 0x1 +#define QIB_6120_HwErrMask_PoisonedTLPMask_LSB 0x1D +#define QIB_6120_HwErrMask_PoisonedTLPMask_RMASK 0x1 +#define QIB_6120_HwErrMask_Reserved4_LSB 0x6 +#define QIB_6120_HwErrMask_Reserved4_RMASK 0x7FFFFF +#define QIB_6120_HwErrMask_PCIeMemParityErrMask_LSB 0x0 +#define QIB_6120_HwErrMask_PCIeMemParityErrMask_RMASK 0x3F + +#define QIB_6120_HwErrStatus_OFFS 0xA0 +#define QIB_6120_HwErrStatus_IBCBusFromSPCParityErr_LSB 0x3F +#define QIB_6120_HwErrStatus_IBCBusFromSPCParityErr_RMASK 0x1 +#define QIB_6120_HwErrStatus_IBCBusToSPCParityErr_LSB 0x3E +#define QIB_6120_HwErrStatus_IBCBusToSPCParityErr_RMASK 0x1 +#define QIB_6120_HwErrStatus_Reserved_LSB 0x3D +#define QIB_6120_HwErrStatus_Reserved_RMASK 0x1 +#define QIB_6120_HwErrStatus_IBSerdesPClkNotDetect_LSB 0x3C +#define QIB_6120_HwErrStatus_IBSerdesPClkNotDetect_RMASK 0x1 +#define QIB_6120_HwErrStatus_PCIESerdesQ0PClkNotDetect_LSB 0x3B +#define QIB_6120_HwErrStatus_PCIESerdesQ0PClkNotDetect_RMASK 0x1 +#define QIB_6120_HwErrStatus_PCIESerdesQ1PClkNotDetect_LSB 0x3A +#define QIB_6120_HwErrStatus_PCIESerdesQ1PClkNotDetect_RMASK 0x1 +#define QIB_6120_HwErrStatus_Reserved1_LSB 0x39 +#define QIB_6120_HwErrStatus_Reserved1_RMASK 0x1 +#define QIB_6120_HwErrStatus_IBPLLrfSlip_LSB 0x38 +#define QIB_6120_HwErrStatus_IBPLLrfSlip_RMASK 0x1 +#define QIB_6120_HwErrStatus_IBPLLfbSlip_LSB 0x37 +#define QIB_6120_HwErrStatus_IBPLLfbSlip_RMASK 0x1 +#define QIB_6120_HwErrStatus_PowerOnBISTFailed_LSB 0x36 +#define QIB_6120_HwErrStatus_PowerOnBISTFailed_RMASK 0x1 +#define QIB_6120_HwErrStatus_Reserved2_LSB 0x33 +#define QIB_6120_HwErrStatus_Reserved2_RMASK 0x7 +#define QIB_6120_HwErrStatus_RXEMemParity_LSB 0x2C +#define QIB_6120_HwErrStatus_RXEMemParity_RMASK 0x7F +#define QIB_6120_HwErrStatus_TXEMemParity_LSB 0x28 +#define QIB_6120_HwErrStatus_TXEMemParity_RMASK 0xF +#define QIB_6120_HwErrStatus_Reserved3_LSB 0x22 +#define QIB_6120_HwErrStatus_Reserved3_RMASK 0x3F +#define QIB_6120_HwErrStatus_PCIeBusParity_LSB 0x1F +#define QIB_6120_HwErrStatus_PCIeBusParity_RMASK 0x7 +#define QIB_6120_HwErrStatus_PcieCplTimeout_LSB 0x1E +#define QIB_6120_HwErrStatus_PcieCplTimeout_RMASK 0x1 +#define QIB_6120_HwErrStatus_PoisenedTLP_LSB 0x1D +#define QIB_6120_HwErrStatus_PoisenedTLP_RMASK 0x1 +#define QIB_6120_HwErrStatus_Reserved4_LSB 0x6 +#define QIB_6120_HwErrStatus_Reserved4_RMASK 0x7FFFFF +#define QIB_6120_HwErrStatus_PCIeMemParity_LSB 0x0 +#define QIB_6120_HwErrStatus_PCIeMemParity_RMASK 0x3F + +#define QIB_6120_HwErrClear_OFFS 0xA8 +#define QIB_6120_HwErrClear_IBCBusFromSPCParityErrClear_LSB 0x3F +#define QIB_6120_HwErrClear_IBCBusFromSPCParityErrClear_RMASK 0x1 +#define QIB_6120_HwErrClear_IBCBusToSPCparityErrClear_LSB 0x3E +#define QIB_6120_HwErrClear_IBCBusToSPCparityErrClear_RMASK 0x1 +#define QIB_6120_HwErrClear_Reserved_LSB 0x3D +#define QIB_6120_HwErrClear_Reserved_RMASK 0x1 +#define QIB_6120_HwErrClear_IBSerdesPClkNotDetectClear_LSB 0x3C +#define QIB_6120_HwErrClear_IBSerdesPClkNotDetectClear_RMASK 0x1 +#define QIB_6120_HwErrClear_PCIESerdesQ0PClkNotDetectClear_LSB 0x3B +#define QIB_6120_HwErrClear_PCIESerdesQ0PClkNotDetectClear_RMASK 0x1 +#define QIB_6120_HwErrClear_PCIESerdesQ1PClkNotDetectClear_LSB 0x3A +#define QIB_6120_HwErrClear_PCIESerdesQ1PClkNotDetectClear_RMASK 0x1 +#define QIB_6120_HwErrClear_Reserved1_LSB 0x39 +#define QIB_6120_HwErrClear_Reserved1_RMASK 0x1 +#define QIB_6120_HwErrClear_IBPLLrfSlipClear_LSB 0x38 +#define QIB_6120_HwErrClear_IBPLLrfSlipClear_RMASK 0x1 +#define QIB_6120_HwErrClear_IBPLLfbSlipClear_LSB 0x37 +#define QIB_6120_HwErrClear_IBPLLfbSlipClear_RMASK 0x1 +#define QIB_6120_HwErrClear_PowerOnBISTFailedClear_LSB 0x36 +#define QIB_6120_HwErrClear_PowerOnBISTFailedClear_RMASK 0x1 +#define QIB_6120_HwErrClear_Reserved2_LSB 0x33 +#define QIB_6120_HwErrClear_Reserved2_RMASK 0x7 +#define QIB_6120_HwErrClear_RXEMemParityClear_LSB 0x2C +#define QIB_6120_HwErrClear_RXEMemParityClear_RMASK 0x7F +#define QIB_6120_HwErrClear_TXEMemParityClear_LSB 0x28 +#define QIB_6120_HwErrClear_TXEMemParityClear_RMASK 0xF +#define QIB_6120_HwErrClear_Reserved3_LSB 0x22 +#define QIB_6120_HwErrClear_Reserved3_RMASK 0x3F +#define QIB_6120_HwErrClear_PCIeBusParityClr_LSB 0x1F +#define QIB_6120_HwErrClear_PCIeBusParityClr_RMASK 0x7 +#define QIB_6120_HwErrClear_PcieCplTimeoutClear_LSB 0x1E +#define QIB_6120_HwErrClear_PcieCplTimeoutClear_RMASK 0x1 +#define QIB_6120_HwErrClear_PoisonedTLPClear_LSB 0x1D +#define QIB_6120_HwErrClear_PoisonedTLPClear_RMASK 0x1 +#define QIB_6120_HwErrClear_Reserved4_LSB 0x6 +#define QIB_6120_HwErrClear_Reserved4_RMASK 0x7FFFFF +#define QIB_6120_HwErrClear_PCIeMemParityClr_LSB 0x0 +#define QIB_6120_HwErrClear_PCIeMemParityClr_RMASK 0x3F + +#define QIB_6120_HwDiagCtrl_OFFS 0xB0 +#define QIB_6120_HwDiagCtrl_ForceIBCBusFromSPCParityErr_LSB 0x3F +#define QIB_6120_HwDiagCtrl_ForceIBCBusFromSPCParityErr_RMASK 0x1 +#define QIB_6120_HwDiagCtrl_ForceIBCBusToSPCParityErr_LSB 0x3E +#define QIB_6120_HwDiagCtrl_ForceIBCBusToSPCParityErr_RMASK 0x1 +#define QIB_6120_HwDiagCtrl_CounterWrEnable_LSB 0x3D +#define QIB_6120_HwDiagCtrl_CounterWrEnable_RMASK 0x1 +#define QIB_6120_HwDiagCtrl_CounterDisable_LSB 0x3C +#define QIB_6120_HwDiagCtrl_CounterDisable_RMASK 0x1 +#define QIB_6120_HwDiagCtrl_Reserved_LSB 0x33 +#define QIB_6120_HwDiagCtrl_Reserved_RMASK 0x1FF +#define QIB_6120_HwDiagCtrl_ForceRxMemParityErr_LSB 0x2C +#define QIB_6120_HwDiagCtrl_ForceRxMemParityErr_RMASK 0x7F +#define QIB_6120_HwDiagCtrl_ForceTxMemparityErr_LSB 0x28 +#define QIB_6120_HwDiagCtrl_ForceTxMemparityErr_RMASK 0xF +#define QIB_6120_HwDiagCtrl_Reserved1_LSB 0x23 +#define QIB_6120_HwDiagCtrl_Reserved1_RMASK 0x1F +#define QIB_6120_HwDiagCtrl_forcePCIeBusParity_LSB 0x1F +#define QIB_6120_HwDiagCtrl_forcePCIeBusParity_RMASK 0xF +#define QIB_6120_HwDiagCtrl_Reserved2_LSB 0x6 +#define QIB_6120_HwDiagCtrl_Reserved2_RMASK 0x1FFFFFF +#define QIB_6120_HwDiagCtrl_forcePCIeMemParity_LSB 0x0 +#define QIB_6120_HwDiagCtrl_forcePCIeMemParity_RMASK 0x3F + +#define QIB_6120_IBCStatus_OFFS 0xC0 +#define QIB_6120_IBCStatus_TxCreditOk_LSB 0x1F +#define QIB_6120_IBCStatus_TxCreditOk_RMASK 0x1 +#define QIB_6120_IBCStatus_TxReady_LSB 0x1E +#define QIB_6120_IBCStatus_TxReady_RMASK 0x1 +#define QIB_6120_IBCStatus_Reserved_LSB 0x7 +#define QIB_6120_IBCStatus_Reserved_RMASK 0x7FFFFF +#define QIB_6120_IBCStatus_LinkState_LSB 0x4 +#define QIB_6120_IBCStatus_LinkState_RMASK 0x7 +#define QIB_6120_IBCStatus_LinkTrainingState_LSB 0x0 +#define QIB_6120_IBCStatus_LinkTrainingState_RMASK 0xF + +#define QIB_6120_IBCCtrl_OFFS 0xC8 +#define QIB_6120_IBCCtrl_Loopback_LSB 0x3F +#define QIB_6120_IBCCtrl_Loopback_RMASK 0x1 +#define QIB_6120_IBCCtrl_LinkDownDefaultState_LSB 0x3E +#define QIB_6120_IBCCtrl_LinkDownDefaultState_RMASK 0x1 +#define QIB_6120_IBCCtrl_Reserved_LSB 0x2B +#define QIB_6120_IBCCtrl_Reserved_RMASK 0x7FFFF +#define QIB_6120_IBCCtrl_CreditScale_LSB 0x28 +#define QIB_6120_IBCCtrl_CreditScale_RMASK 0x7 +#define QIB_6120_IBCCtrl_OverrunThreshold_LSB 0x24 +#define QIB_6120_IBCCtrl_OverrunThreshold_RMASK 0xF +#define QIB_6120_IBCCtrl_PhyerrThreshold_LSB 0x20 +#define QIB_6120_IBCCtrl_PhyerrThreshold_RMASK 0xF +#define QIB_6120_IBCCtrl_Reserved1_LSB 0x1F +#define QIB_6120_IBCCtrl_Reserved1_RMASK 0x1 +#define QIB_6120_IBCCtrl_MaxPktLen_LSB 0x14 +#define QIB_6120_IBCCtrl_MaxPktLen_RMASK 0x7FF +#define QIB_6120_IBCCtrl_LinkCmd_LSB 0x12 +#define QIB_6120_IBCCtrl_LinkCmd_RMASK 0x3 +#define QIB_6120_IBCCtrl_LinkInitCmd_LSB 0x10 +#define QIB_6120_IBCCtrl_LinkInitCmd_RMASK 0x3 +#define QIB_6120_IBCCtrl_FlowCtrlWaterMark_LSB 0x8 +#define QIB_6120_IBCCtrl_FlowCtrlWaterMark_RMASK 0xFF +#define QIB_6120_IBCCtrl_FlowCtrlPeriod_LSB 0x0 +#define QIB_6120_IBCCtrl_FlowCtrlPeriod_RMASK 0xFF + +#define QIB_6120_EXTStatus_OFFS 0xD0 +#define QIB_6120_EXTStatus_GPIOIn_LSB 0x30 +#define QIB_6120_EXTStatus_GPIOIn_RMASK 0xFFFF +#define QIB_6120_EXTStatus_Reserved_LSB 0x20 +#define QIB_6120_EXTStatus_Reserved_RMASK 0xFFFF +#define QIB_6120_EXTStatus_Reserved1_LSB 0x10 +#define QIB_6120_EXTStatus_Reserved1_RMASK 0xFFFF +#define QIB_6120_EXTStatus_MemBISTFoundErr_LSB 0xF +#define QIB_6120_EXTStatus_MemBISTFoundErr_RMASK 0x1 +#define QIB_6120_EXTStatus_MemBISTEndTest_LSB 0xE +#define QIB_6120_EXTStatus_MemBISTEndTest_RMASK 0x1 +#define QIB_6120_EXTStatus_Reserved2_LSB 0x0 +#define QIB_6120_EXTStatus_Reserved2_RMASK 0x3FFF + +#define QIB_6120_EXTCtrl_OFFS 0xD8 +#define QIB_6120_EXTCtrl_GPIOOe_LSB 0x30 +#define QIB_6120_EXTCtrl_GPIOOe_RMASK 0xFFFF +#define QIB_6120_EXTCtrl_GPIOInvert_LSB 0x20 +#define QIB_6120_EXTCtrl_GPIOInvert_RMASK 0xFFFF +#define QIB_6120_EXTCtrl_Reserved_LSB 0x4 +#define QIB_6120_EXTCtrl_Reserved_RMASK 0xFFFFFFF +#define QIB_6120_EXTCtrl_LEDPriPortGreenOn_LSB 0x3 +#define QIB_6120_EXTCtrl_LEDPriPortGreenOn_RMASK 0x1 +#define QIB_6120_EXTCtrl_LEDPriPortYellowOn_LSB 0x2 +#define QIB_6120_EXTCtrl_LEDPriPortYellowOn_RMASK 0x1 +#define QIB_6120_EXTCtrl_LEDGblOkGreenOn_LSB 0x1 +#define QIB_6120_EXTCtrl_LEDGblOkGreenOn_RMASK 0x1 +#define QIB_6120_EXTCtrl_LEDGblErrRedOff_LSB 0x0 +#define QIB_6120_EXTCtrl_LEDGblErrRedOff_RMASK 0x1 + +#define QIB_6120_GPIOOut_OFFS 0xE0 + +#define QIB_6120_GPIOMask_OFFS 0xE8 + +#define QIB_6120_GPIOStatus_OFFS 0xF0 + +#define QIB_6120_GPIOClear_OFFS 0xF8 + +#define QIB_6120_RcvCtrl_OFFS 0x100 +#define QIB_6120_RcvCtrl_TailUpd_LSB 0x1F +#define QIB_6120_RcvCtrl_TailUpd_RMASK 0x1 +#define QIB_6120_RcvCtrl_RcvPartitionKeyDisable_LSB 0x1E +#define QIB_6120_RcvCtrl_RcvPartitionKeyDisable_RMASK 0x1 +#define QIB_6120_RcvCtrl_Reserved_LSB 0x15 +#define QIB_6120_RcvCtrl_Reserved_RMASK 0x1FF +#define QIB_6120_RcvCtrl_IntrAvail_LSB 0x10 +#define QIB_6120_RcvCtrl_IntrAvail_RMASK 0x1F +#define QIB_6120_RcvCtrl_Reserved1_LSB 0x9 +#define QIB_6120_RcvCtrl_Reserved1_RMASK 0x7F +#define QIB_6120_RcvCtrl_Reserved2_LSB 0x5 +#define QIB_6120_RcvCtrl_Reserved2_RMASK 0xF +#define QIB_6120_RcvCtrl_PortEnable_LSB 0x0 +#define QIB_6120_RcvCtrl_PortEnable_RMASK 0x1F + +#define QIB_6120_RcvBTHQP_OFFS 0x108 +#define QIB_6120_RcvBTHQP_BTHQP_Mask_LSB 0x1E +#define QIB_6120_RcvBTHQP_BTHQP_Mask_RMASK 0x3 +#define QIB_6120_RcvBTHQP_Reserved_LSB 0x18 +#define QIB_6120_RcvBTHQP_Reserved_RMASK 0x3F +#define QIB_6120_RcvBTHQP_RcvBTHQP_LSB 0x0 +#define QIB_6120_RcvBTHQP_RcvBTHQP_RMASK 0xFFFFFF + +#define QIB_6120_RcvHdrSize_OFFS 0x110 + +#define QIB_6120_RcvHdrCnt_OFFS 0x118 + +#define QIB_6120_RcvHdrEntSize_OFFS 0x120 + +#define QIB_6120_RcvTIDBase_OFFS 0x128 + +#define QIB_6120_RcvTIDCnt_OFFS 0x130 + +#define QIB_6120_RcvEgrBase_OFFS 0x138 + +#define QIB_6120_RcvEgrCnt_OFFS 0x140 + +#define QIB_6120_RcvBufBase_OFFS 0x148 + +#define QIB_6120_RcvBufSize_OFFS 0x150 + +#define QIB_6120_RxIntMemBase_OFFS 0x158 + +#define QIB_6120_RxIntMemSize_OFFS 0x160 + +#define QIB_6120_RcvPartitionKey_OFFS 0x168 + +#define QIB_6120_RcvPktLEDCnt_OFFS 0x178 +#define QIB_6120_RcvPktLEDCnt_ONperiod_LSB 0x20 +#define QIB_6120_RcvPktLEDCnt_ONperiod_RMASK 0xFFFFFFFF +#define QIB_6120_RcvPktLEDCnt_OFFperiod_LSB 0x0 +#define QIB_6120_RcvPktLEDCnt_OFFperiod_RMASK 0xFFFFFFFF + +#define QIB_6120_SendCtrl_OFFS 0x1C0 +#define QIB_6120_SendCtrl_Disarm_LSB 0x1F +#define QIB_6120_SendCtrl_Disarm_RMASK 0x1 +#define QIB_6120_SendCtrl_Reserved_LSB 0x17 +#define QIB_6120_SendCtrl_Reserved_RMASK 0xFF +#define QIB_6120_SendCtrl_DisarmPIOBuf_LSB 0x10 +#define QIB_6120_SendCtrl_DisarmPIOBuf_RMASK 0x7F +#define QIB_6120_SendCtrl_Reserved1_LSB 0x4 +#define QIB_6120_SendCtrl_Reserved1_RMASK 0xFFF +#define QIB_6120_SendCtrl_PIOEnable_LSB 0x3 +#define QIB_6120_SendCtrl_PIOEnable_RMASK 0x1 +#define QIB_6120_SendCtrl_PIOBufAvailUpd_LSB 0x2 +#define QIB_6120_SendCtrl_PIOBufAvailUpd_RMASK 0x1 +#define QIB_6120_SendCtrl_PIOIntBufAvail_LSB 0x1 +#define QIB_6120_SendCtrl_PIOIntBufAvail_RMASK 0x1 +#define QIB_6120_SendCtrl_Abort_LSB 0x0 +#define QIB_6120_SendCtrl_Abort_RMASK 0x1 + +#define QIB_6120_SendPIOBufBase_OFFS 0x1C8 +#define QIB_6120_SendPIOBufBase_Reserved_LSB 0x35 +#define QIB_6120_SendPIOBufBase_Reserved_RMASK 0x7FF +#define QIB_6120_SendPIOBufBase_BaseAddr_LargePIO_LSB 0x20 +#define QIB_6120_SendPIOBufBase_BaseAddr_LargePIO_RMASK 0x1FFFFF +#define QIB_6120_SendPIOBufBase_Reserved1_LSB 0x15 +#define QIB_6120_SendPIOBufBase_Reserved1_RMASK 0x7FF +#define QIB_6120_SendPIOBufBase_BaseAddr_SmallPIO_LSB 0x0 +#define QIB_6120_SendPIOBufBase_BaseAddr_SmallPIO_RMASK 0x1FFFFF + +#define QIB_6120_SendPIOSize_OFFS 0x1D0 +#define QIB_6120_SendPIOSize_Reserved_LSB 0x2D +#define QIB_6120_SendPIOSize_Reserved_RMASK 0xFFFFF +#define QIB_6120_SendPIOSize_Size_LargePIO_LSB 0x20 +#define QIB_6120_SendPIOSize_Size_LargePIO_RMASK 0x1FFF +#define QIB_6120_SendPIOSize_Reserved1_LSB 0xC +#define QIB_6120_SendPIOSize_Reserved1_RMASK 0xFFFFF +#define QIB_6120_SendPIOSize_Size_SmallPIO_LSB 0x0 +#define QIB_6120_SendPIOSize_Size_SmallPIO_RMASK 0xFFF + +#define QIB_6120_SendPIOBufCnt_OFFS 0x1D8 +#define QIB_6120_SendPIOBufCnt_Reserved_LSB 0x24 +#define QIB_6120_SendPIOBufCnt_Reserved_RMASK 0xFFFFFFF +#define QIB_6120_SendPIOBufCnt_Num_LargePIO_LSB 0x20 +#define QIB_6120_SendPIOBufCnt_Num_LargePIO_RMASK 0xF +#define QIB_6120_SendPIOBufCnt_Reserved1_LSB 0x9 +#define QIB_6120_SendPIOBufCnt_Reserved1_RMASK 0x7FFFFF +#define QIB_6120_SendPIOBufCnt_Num_SmallPIO_LSB 0x0 +#define QIB_6120_SendPIOBufCnt_Num_SmallPIO_RMASK 0x1FF + +#define QIB_6120_SendPIOAvailAddr_OFFS 0x1E0 +#define QIB_6120_SendPIOAvailAddr_SendPIOAvailAddr_LSB 0x6 +#define QIB_6120_SendPIOAvailAddr_SendPIOAvailAddr_RMASK 0x3FFFFFFFF +#define QIB_6120_SendPIOAvailAddr_Reserved_LSB 0x0 +#define QIB_6120_SendPIOAvailAddr_Reserved_RMASK 0x3F + +#define QIB_6120_SendBufErr0_OFFS 0x240 +#define QIB_6120_SendBufErr0_SendBufErrPIO_63_0_LSB 0x0 +#define QIB_6120_SendBufErr0_SendBufErrPIO_63_0_RMASK 0x0 + +#define QIB_6120_RcvHdrAddr0_OFFS 0x280 +#define QIB_6120_RcvHdrAddr0_RcvHdrAddr0_LSB 0x2 +#define QIB_6120_RcvHdrAddr0_RcvHdrAddr0_RMASK 0x3FFFFFFFFF +#define QIB_6120_RcvHdrAddr0_Reserved_LSB 0x0 +#define QIB_6120_RcvHdrAddr0_Reserved_RMASK 0x3 + +#define QIB_6120_RcvHdrTailAddr0_OFFS 0x300 +#define QIB_6120_RcvHdrTailAddr0_RcvHdrTailAddr0_LSB 0x2 +#define QIB_6120_RcvHdrTailAddr0_RcvHdrTailAddr0_RMASK 0x3FFFFFFFFF +#define QIB_6120_RcvHdrTailAddr0_Reserved_LSB 0x0 +#define QIB_6120_RcvHdrTailAddr0_Reserved_RMASK 0x3 + +#define QIB_6120_SerdesCfg0_OFFS 0x3C0 +#define QIB_6120_SerdesCfg0_DisableIBTxIdleDetect_LSB 0x3F +#define QIB_6120_SerdesCfg0_DisableIBTxIdleDetect_RMASK 0x1 +#define QIB_6120_SerdesCfg0_Reserved_LSB 0x38 +#define QIB_6120_SerdesCfg0_Reserved_RMASK 0x7F +#define QIB_6120_SerdesCfg0_RxEqCtl_LSB 0x36 +#define QIB_6120_SerdesCfg0_RxEqCtl_RMASK 0x3 +#define QIB_6120_SerdesCfg0_TxTermAdj_LSB 0x34 +#define QIB_6120_SerdesCfg0_TxTermAdj_RMASK 0x3 +#define QIB_6120_SerdesCfg0_RxTermAdj_LSB 0x32 +#define QIB_6120_SerdesCfg0_RxTermAdj_RMASK 0x3 +#define QIB_6120_SerdesCfg0_TermAdj1_LSB 0x31 +#define QIB_6120_SerdesCfg0_TermAdj1_RMASK 0x1 +#define QIB_6120_SerdesCfg0_TermAdj0_LSB 0x30 +#define QIB_6120_SerdesCfg0_TermAdj0_RMASK 0x1 +#define QIB_6120_SerdesCfg0_LPBKA_LSB 0x2F +#define QIB_6120_SerdesCfg0_LPBKA_RMASK 0x1 +#define QIB_6120_SerdesCfg0_LPBKB_LSB 0x2E +#define QIB_6120_SerdesCfg0_LPBKB_RMASK 0x1 +#define QIB_6120_SerdesCfg0_LPBKC_LSB 0x2D +#define QIB_6120_SerdesCfg0_LPBKC_RMASK 0x1 +#define QIB_6120_SerdesCfg0_LPBKD_LSB 0x2C +#define QIB_6120_SerdesCfg0_LPBKD_RMASK 0x1 +#define QIB_6120_SerdesCfg0_PW_LSB 0x2B +#define QIB_6120_SerdesCfg0_PW_RMASK 0x1 +#define QIB_6120_SerdesCfg0_RefSel_LSB 0x29 +#define QIB_6120_SerdesCfg0_RefSel_RMASK 0x3 +#define QIB_6120_SerdesCfg0_ParReset_LSB 0x28 +#define QIB_6120_SerdesCfg0_ParReset_RMASK 0x1 +#define QIB_6120_SerdesCfg0_ParLPBK_LSB 0x27 +#define QIB_6120_SerdesCfg0_ParLPBK_RMASK 0x1 +#define QIB_6120_SerdesCfg0_OffsetEn_LSB 0x26 +#define QIB_6120_SerdesCfg0_OffsetEn_RMASK 0x1 +#define QIB_6120_SerdesCfg0_Offset_LSB 0x1E +#define QIB_6120_SerdesCfg0_Offset_RMASK 0xFF +#define QIB_6120_SerdesCfg0_L2PwrDn_LSB 0x1D +#define QIB_6120_SerdesCfg0_L2PwrDn_RMASK 0x1 +#define QIB_6120_SerdesCfg0_ResetPLL_LSB 0x1C +#define QIB_6120_SerdesCfg0_ResetPLL_RMASK 0x1 +#define QIB_6120_SerdesCfg0_RxTermEnX_LSB 0x18 +#define QIB_6120_SerdesCfg0_RxTermEnX_RMASK 0xF +#define QIB_6120_SerdesCfg0_BeaconTxEnX_LSB 0x14 +#define QIB_6120_SerdesCfg0_BeaconTxEnX_RMASK 0xF +#define QIB_6120_SerdesCfg0_RxDetEnX_LSB 0x10 +#define QIB_6120_SerdesCfg0_RxDetEnX_RMASK 0xF +#define QIB_6120_SerdesCfg0_TxIdeEnX_LSB 0xC +#define QIB_6120_SerdesCfg0_TxIdeEnX_RMASK 0xF +#define QIB_6120_SerdesCfg0_RxIdleEnX_LSB 0x8 +#define QIB_6120_SerdesCfg0_RxIdleEnX_RMASK 0xF +#define QIB_6120_SerdesCfg0_L1PwrDnA_LSB 0x7 +#define QIB_6120_SerdesCfg0_L1PwrDnA_RMASK 0x1 +#define QIB_6120_SerdesCfg0_L1PwrDnB_LSB 0x6 +#define QIB_6120_SerdesCfg0_L1PwrDnB_RMASK 0x1 +#define QIB_6120_SerdesCfg0_L1PwrDnC_LSB 0x5 +#define QIB_6120_SerdesCfg0_L1PwrDnC_RMASK 0x1 +#define QIB_6120_SerdesCfg0_L1PwrDnD_LSB 0x4 +#define QIB_6120_SerdesCfg0_L1PwrDnD_RMASK 0x1 +#define QIB_6120_SerdesCfg0_ResetA_LSB 0x3 +#define QIB_6120_SerdesCfg0_ResetA_RMASK 0x1 +#define QIB_6120_SerdesCfg0_ResetB_LSB 0x2 +#define QIB_6120_SerdesCfg0_ResetB_RMASK 0x1 +#define QIB_6120_SerdesCfg0_ResetC_LSB 0x1 +#define QIB_6120_SerdesCfg0_ResetC_RMASK 0x1 +#define QIB_6120_SerdesCfg0_ResetD_LSB 0x0 +#define QIB_6120_SerdesCfg0_ResetD_RMASK 0x1 + +#define QIB_6120_SerdesStat_OFFS 0x3D0 +#define QIB_6120_SerdesStat_Reserved_LSB 0xC +#define QIB_6120_SerdesStat_Reserved_RMASK 0xFFFFFFFFFFFFF +#define QIB_6120_SerdesStat_BeaconDetA_LSB 0xB +#define QIB_6120_SerdesStat_BeaconDetA_RMASK 0x1 +#define QIB_6120_SerdesStat_BeaconDetB_LSB 0xA +#define QIB_6120_SerdesStat_BeaconDetB_RMASK 0x1 +#define QIB_6120_SerdesStat_BeaconDetC_LSB 0x9 +#define QIB_6120_SerdesStat_BeaconDetC_RMASK 0x1 +#define QIB_6120_SerdesStat_BeaconDetD_LSB 0x8 +#define QIB_6120_SerdesStat_BeaconDetD_RMASK 0x1 +#define QIB_6120_SerdesStat_RxDetA_LSB 0x7 +#define QIB_6120_SerdesStat_RxDetA_RMASK 0x1 +#define QIB_6120_SerdesStat_RxDetB_LSB 0x6 +#define QIB_6120_SerdesStat_RxDetB_RMASK 0x1 +#define QIB_6120_SerdesStat_RxDetC_LSB 0x5 +#define QIB_6120_SerdesStat_RxDetC_RMASK 0x1 +#define QIB_6120_SerdesStat_RxDetD_LSB 0x4 +#define QIB_6120_SerdesStat_RxDetD_RMASK 0x1 +#define QIB_6120_SerdesStat_TxIdleDetA_LSB 0x3 +#define QIB_6120_SerdesStat_TxIdleDetA_RMASK 0x1 +#define QIB_6120_SerdesStat_TxIdleDetB_LSB 0x2 +#define QIB_6120_SerdesStat_TxIdleDetB_RMASK 0x1 +#define QIB_6120_SerdesStat_TxIdleDetC_LSB 0x1 +#define QIB_6120_SerdesStat_TxIdleDetC_RMASK 0x1 +#define QIB_6120_SerdesStat_TxIdleDetD_LSB 0x0 +#define QIB_6120_SerdesStat_TxIdleDetD_RMASK 0x1 + +#define QIB_6120_XGXSCfg_OFFS 0x3D8 +#define QIB_6120_XGXSCfg_ArmLaunchErrorDisable_LSB 0x3F +#define QIB_6120_XGXSCfg_ArmLaunchErrorDisable_RMASK 0x1 +#define QIB_6120_XGXSCfg_Reserved_LSB 0x17 +#define QIB_6120_XGXSCfg_Reserved_RMASK 0xFFFFFFFFFF +#define QIB_6120_XGXSCfg_polarity_inv_LSB 0x13 +#define QIB_6120_XGXSCfg_polarity_inv_RMASK 0xF +#define QIB_6120_XGXSCfg_link_sync_mask_LSB 0x9 +#define QIB_6120_XGXSCfg_link_sync_mask_RMASK 0x3FF +#define QIB_6120_XGXSCfg_port_addr_LSB 0x4 +#define QIB_6120_XGXSCfg_port_addr_RMASK 0x1F +#define QIB_6120_XGXSCfg_mdd_30_LSB 0x3 +#define QIB_6120_XGXSCfg_mdd_30_RMASK 0x1 +#define QIB_6120_XGXSCfg_xcv_resetn_LSB 0x2 +#define QIB_6120_XGXSCfg_xcv_resetn_RMASK 0x1 +#define QIB_6120_XGXSCfg_Reserved1_LSB 0x1 +#define QIB_6120_XGXSCfg_Reserved1_RMASK 0x1 +#define QIB_6120_XGXSCfg_tx_rx_resetn_LSB 0x0 +#define QIB_6120_XGXSCfg_tx_rx_resetn_RMASK 0x1 + +#define QIB_6120_LBIntCnt_OFFS 0x12000 + +#define QIB_6120_LBFlowStallCnt_OFFS 0x12008 + +#define QIB_6120_TxUnsupVLErrCnt_OFFS 0x12018 + +#define QIB_6120_TxDataPktCnt_OFFS 0x12020 + +#define QIB_6120_TxFlowPktCnt_OFFS 0x12028 + +#define QIB_6120_TxDwordCnt_OFFS 0x12030 + +#define QIB_6120_TxLenErrCnt_OFFS 0x12038 + +#define QIB_6120_TxMaxMinLenErrCnt_OFFS 0x12040 + +#define QIB_6120_TxUnderrunCnt_OFFS 0x12048 + +#define QIB_6120_TxFlowStallCnt_OFFS 0x12050 + +#define QIB_6120_TxDroppedPktCnt_OFFS 0x12058 + +#define QIB_6120_RxDroppedPktCnt_OFFS 0x12060 + +#define QIB_6120_RxDataPktCnt_OFFS 0x12068 + +#define QIB_6120_RxFlowPktCnt_OFFS 0x12070 + +#define QIB_6120_RxDwordCnt_OFFS 0x12078 + +#define QIB_6120_RxLenErrCnt_OFFS 0x12080 + +#define QIB_6120_RxMaxMinLenErrCnt_OFFS 0x12088 + +#define QIB_6120_RxICRCErrCnt_OFFS 0x12090 + +#define QIB_6120_RxVCRCErrCnt_OFFS 0x12098 + +#define QIB_6120_RxFlowCtrlErrCnt_OFFS 0x120A0 + +#define QIB_6120_RxBadFormatCnt_OFFS 0x120A8 + +#define QIB_6120_RxLinkProblemCnt_OFFS 0x120B0 + +#define QIB_6120_RxEBPCnt_OFFS 0x120B8 + +#define QIB_6120_RxLPCRCErrCnt_OFFS 0x120C0 + +#define QIB_6120_RxBufOvflCnt_OFFS 0x120C8 + +#define QIB_6120_RxTIDFullErrCnt_OFFS 0x120D0 + +#define QIB_6120_RxTIDValidErrCnt_OFFS 0x120D8 + +#define QIB_6120_RxPKeyMismatchCnt_OFFS 0x120E0 + +#define QIB_6120_RxP0HdrEgrOvflCnt_OFFS 0x120E8 + +#define QIB_6120_IBStatusChangeCnt_OFFS 0x12140 + +#define QIB_6120_IBLinkErrRecoveryCnt_OFFS 0x12148 + +#define QIB_6120_IBLinkDownedCnt_OFFS 0x12150 + +#define QIB_6120_IBSymbolErrCnt_OFFS 0x12158 + +#define QIB_6120_PcieRetryBufDiagQwordCnt_OFFS 0x12170 + +#define QIB_6120_RcvEgrArray0_OFFS 0x14000 + +#define QIB_6120_RcvTIDArray0_OFFS 0x54000 + +#define QIB_6120_PIOLaunchFIFO_OFFS 0x64000 + +#define QIB_6120_SendPIOpbcCache_OFFS 0x64800 + +#define QIB_6120_RcvBuf1_OFFS 0x72000 + +#define QIB_6120_RcvBuf2_OFFS 0x75000 + +#define QIB_6120_RcvFlags_OFFS 0x77000 + +#define QIB_6120_RcvLookupBuf1_OFFS 0x79000 + +#define QIB_6120_RcvDMABuf_OFFS 0x7B000 + +#define QIB_6120_MiscRXEIntMem_OFFS 0x7C000 + +#define QIB_6120_PCIERcvBuf_OFFS 0x80000 + +#define QIB_6120_PCIERetryBuf_OFFS 0x82000 + +#define QIB_6120_PCIERcvBufRdToWrAddr_OFFS 0x84000 + +#define QIB_6120_PIOBuf0_MA_OFFS 0x100000 diff --git a/drivers/infiniband/hw/qib/qib_7220.h b/drivers/infiniband/hw/qib/qib_7220.h new file mode 100644 index 000000000..9ecaab623 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_7220.h @@ -0,0 +1,149 @@ +#ifndef _QIB_7220_H +#define _QIB_7220_H +/* + * Copyright (c) 2007, 2009, 2010 QLogic Corporation. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +/* grab register-defs auto-generated by HW */ +#include "qib_7220_regs.h" + +/* The number of eager receive TIDs for context zero. */ +#define IBA7220_KRCVEGRCNT 2048U + +#define IB_7220_LT_STATE_CFGRCVFCFG 0x09 +#define IB_7220_LT_STATE_CFGWAITRMT 0x0a +#define IB_7220_LT_STATE_TXREVLANES 0x0d +#define IB_7220_LT_STATE_CFGENH 0x10 + +struct qib_chip_specific { + u64 __iomem *cregbase; + u64 *cntrs; + u64 *portcntrs; + spinlock_t sdepb_lock; /* serdes EPB bus */ + spinlock_t rcvmod_lock; /* protect rcvctrl shadow changes */ + spinlock_t gpio_lock; /* RMW of shadows/regs for ExtCtrl and GPIO */ + u64 hwerrmask; + u64 errormask; + u64 gpio_out; /* shadow of kr_gpio_out, for rmw ops */ + u64 gpio_mask; /* shadow the gpio mask register */ + u64 extctrl; /* shadow the gpio output enable, etc... */ + u32 ncntrs; + u32 nportcntrs; + u32 cntrnamelen; + u32 portcntrnamelen; + u32 numctxts; + u32 rcvegrcnt; + u32 autoneg_tries; + u32 serdes_first_init_done; + u32 sdmabufcnt; + u32 lastbuf_for_pio; + u32 updthresh; /* current AvailUpdThld */ + u32 updthresh_dflt; /* default AvailUpdThld */ + u8 presets_needed; + u8 relock_timer_active; + char emsgbuf[128]; + char sdmamsgbuf[192]; + char bitsmsgbuf[64]; + struct timer_list relock_timer; + unsigned int relock_interval; /* in jiffies */ + struct qib_devdata *dd; +}; + +struct qib_chippport_specific { + struct qib_pportdata pportdata; + wait_queue_head_t autoneg_wait; + struct delayed_work autoneg_work; + struct timer_list chase_timer; + /* + * these 5 fields are used to establish deltas for IB symbol + * errors and linkrecovery errors. They can be reported on + * some chips during link negotiation prior to INIT, and with + * DDR when faking DDR negotiations with non-IBTA switches. + * The chip counters are adjusted at driver unload if there is + * a non-zero delta. + */ + u64 ibdeltainprog; + u64 ibsymdelta; + u64 ibsymsnap; + u64 iblnkerrdelta; + u64 iblnkerrsnap; + u64 ibcctrl; /* kr_ibcctrl shadow */ + u64 ibcddrctrl; /* kr_ibcddrctrl shadow */ + unsigned long chase_end; + u32 last_delay_mult; +}; + +/* + * This header file provides the declarations and common definitions + * for (mostly) manipulation of the SerDes blocks within the IBA7220. + * the functions declared should only be called from within other + * 7220-related files such as qib_iba7220.c or qib_sd7220.c. + */ +int qib_sd7220_presets(struct qib_devdata *dd); +int qib_sd7220_init(struct qib_devdata *dd); +void qib_sd7220_clr_ibpar(struct qib_devdata *); +/* + * Below used for sdnum parameter, selecting one of the two sections + * used for PCIe, or the single SerDes used for IB, which is the + * only one currently used + */ +#define IB_7220_SERDES 2 + +static inline u32 qib_read_kreg32(const struct qib_devdata *dd, + const u16 regno) +{ + if (!dd->kregbase || !(dd->flags & QIB_PRESENT)) + return -1; + return readl((u32 __iomem *)&dd->kregbase[regno]); +} + +static inline u64 qib_read_kreg64(const struct qib_devdata *dd, + const u16 regno) +{ + if (!dd->kregbase || !(dd->flags & QIB_PRESENT)) + return -1; + + return readq(&dd->kregbase[regno]); +} + +static inline void qib_write_kreg(const struct qib_devdata *dd, + const u16 regno, u64 value) +{ + if (dd->kregbase) + writeq(value, &dd->kregbase[regno]); +} + +void set_7220_relock_poll(struct qib_devdata *, int); +void shutdown_7220_relock_poll(struct qib_devdata *); +void toggle_7220_rclkrls(struct qib_devdata *); + + +#endif /* _QIB_7220_H */ diff --git a/drivers/infiniband/hw/qib/qib_7220_regs.h b/drivers/infiniband/hw/qib/qib_7220_regs.h new file mode 100644 index 000000000..0da5bb750 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_7220_regs.h @@ -0,0 +1,1496 @@ +/* + * Copyright (c) 2008, 2009, 2010 QLogic Corporation. All rights reserved. + * + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + +/* This file is mechanically generated from RTL. Any hand-edits will be lost! */ + +#define QIB_7220_Revision_OFFS 0x0 +#define QIB_7220_Revision_R_Simulator_LSB 0x3F +#define QIB_7220_Revision_R_Simulator_RMASK 0x1 +#define QIB_7220_Revision_R_Emulation_LSB 0x3E +#define QIB_7220_Revision_R_Emulation_RMASK 0x1 +#define QIB_7220_Revision_R_Emulation_Revcode_LSB 0x28 +#define QIB_7220_Revision_R_Emulation_Revcode_RMASK 0x3FFFFF +#define QIB_7220_Revision_BoardID_LSB 0x20 +#define QIB_7220_Revision_BoardID_RMASK 0xFF +#define QIB_7220_Revision_R_SW_LSB 0x18 +#define QIB_7220_Revision_R_SW_RMASK 0xFF +#define QIB_7220_Revision_R_Arch_LSB 0x10 +#define QIB_7220_Revision_R_Arch_RMASK 0xFF +#define QIB_7220_Revision_R_ChipRevMajor_LSB 0x8 +#define QIB_7220_Revision_R_ChipRevMajor_RMASK 0xFF +#define QIB_7220_Revision_R_ChipRevMinor_LSB 0x0 +#define QIB_7220_Revision_R_ChipRevMinor_RMASK 0xFF + +#define QIB_7220_Control_OFFS 0x8 +#define QIB_7220_Control_SyncResetExceptPcieIRAMRST_LSB 0x7 +#define QIB_7220_Control_SyncResetExceptPcieIRAMRST_RMASK 0x1 +#define QIB_7220_Control_PCIECplQDiagEn_LSB 0x6 +#define QIB_7220_Control_PCIECplQDiagEn_RMASK 0x1 +#define QIB_7220_Control_Reserved_LSB 0x5 +#define QIB_7220_Control_Reserved_RMASK 0x1 +#define QIB_7220_Control_TxLatency_LSB 0x4 +#define QIB_7220_Control_TxLatency_RMASK 0x1 +#define QIB_7220_Control_PCIERetryBufDiagEn_LSB 0x3 +#define QIB_7220_Control_PCIERetryBufDiagEn_RMASK 0x1 +#define QIB_7220_Control_LinkEn_LSB 0x2 +#define QIB_7220_Control_LinkEn_RMASK 0x1 +#define QIB_7220_Control_FreezeMode_LSB 0x1 +#define QIB_7220_Control_FreezeMode_RMASK 0x1 +#define QIB_7220_Control_SyncReset_LSB 0x0 +#define QIB_7220_Control_SyncReset_RMASK 0x1 + +#define QIB_7220_PageAlign_OFFS 0x10 + +#define QIB_7220_PortCnt_OFFS 0x18 + +#define QIB_7220_SendRegBase_OFFS 0x30 + +#define QIB_7220_UserRegBase_OFFS 0x38 + +#define QIB_7220_CntrRegBase_OFFS 0x40 + +#define QIB_7220_Scratch_OFFS 0x48 + +#define QIB_7220_IntMask_OFFS 0x68 +#define QIB_7220_IntMask_SDmaIntMask_LSB 0x3F +#define QIB_7220_IntMask_SDmaIntMask_RMASK 0x1 +#define QIB_7220_IntMask_SDmaDisabledMasked_LSB 0x3E +#define QIB_7220_IntMask_SDmaDisabledMasked_RMASK 0x1 +#define QIB_7220_IntMask_Reserved_LSB 0x31 +#define QIB_7220_IntMask_Reserved_RMASK 0x1FFF +#define QIB_7220_IntMask_RcvUrg16IntMask_LSB 0x30 +#define QIB_7220_IntMask_RcvUrg16IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvUrg15IntMask_LSB 0x2F +#define QIB_7220_IntMask_RcvUrg15IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvUrg14IntMask_LSB 0x2E +#define QIB_7220_IntMask_RcvUrg14IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvUrg13IntMask_LSB 0x2D +#define QIB_7220_IntMask_RcvUrg13IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvUrg12IntMask_LSB 0x2C +#define QIB_7220_IntMask_RcvUrg12IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvUrg11IntMask_LSB 0x2B +#define QIB_7220_IntMask_RcvUrg11IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvUrg10IntMask_LSB 0x2A +#define QIB_7220_IntMask_RcvUrg10IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvUrg9IntMask_LSB 0x29 +#define QIB_7220_IntMask_RcvUrg9IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvUrg8IntMask_LSB 0x28 +#define QIB_7220_IntMask_RcvUrg8IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvUrg7IntMask_LSB 0x27 +#define QIB_7220_IntMask_RcvUrg7IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvUrg6IntMask_LSB 0x26 +#define QIB_7220_IntMask_RcvUrg6IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvUrg5IntMask_LSB 0x25 +#define QIB_7220_IntMask_RcvUrg5IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvUrg4IntMask_LSB 0x24 +#define QIB_7220_IntMask_RcvUrg4IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvUrg3IntMask_LSB 0x23 +#define QIB_7220_IntMask_RcvUrg3IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvUrg2IntMask_LSB 0x22 +#define QIB_7220_IntMask_RcvUrg2IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvUrg1IntMask_LSB 0x21 +#define QIB_7220_IntMask_RcvUrg1IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvUrg0IntMask_LSB 0x20 +#define QIB_7220_IntMask_RcvUrg0IntMask_RMASK 0x1 +#define QIB_7220_IntMask_ErrorIntMask_LSB 0x1F +#define QIB_7220_IntMask_ErrorIntMask_RMASK 0x1 +#define QIB_7220_IntMask_PioSetIntMask_LSB 0x1E +#define QIB_7220_IntMask_PioSetIntMask_RMASK 0x1 +#define QIB_7220_IntMask_PioBufAvailIntMask_LSB 0x1D +#define QIB_7220_IntMask_PioBufAvailIntMask_RMASK 0x1 +#define QIB_7220_IntMask_assertGPIOIntMask_LSB 0x1C +#define QIB_7220_IntMask_assertGPIOIntMask_RMASK 0x1 +#define QIB_7220_IntMask_IBSerdesTrimDoneIntMask_LSB 0x1B +#define QIB_7220_IntMask_IBSerdesTrimDoneIntMask_RMASK 0x1 +#define QIB_7220_IntMask_JIntMask_LSB 0x1A +#define QIB_7220_IntMask_JIntMask_RMASK 0x1 +#define QIB_7220_IntMask_Reserved1_LSB 0x11 +#define QIB_7220_IntMask_Reserved1_RMASK 0x1FF +#define QIB_7220_IntMask_RcvAvail16IntMask_LSB 0x10 +#define QIB_7220_IntMask_RcvAvail16IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvAvail15IntMask_LSB 0xF +#define QIB_7220_IntMask_RcvAvail15IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvAvail14IntMask_LSB 0xE +#define QIB_7220_IntMask_RcvAvail14IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvAvail13IntMask_LSB 0xD +#define QIB_7220_IntMask_RcvAvail13IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvAvail12IntMask_LSB 0xC +#define QIB_7220_IntMask_RcvAvail12IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvAvail11IntMask_LSB 0xB +#define QIB_7220_IntMask_RcvAvail11IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvAvail10IntMask_LSB 0xA +#define QIB_7220_IntMask_RcvAvail10IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvAvail9IntMask_LSB 0x9 +#define QIB_7220_IntMask_RcvAvail9IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvAvail8IntMask_LSB 0x8 +#define QIB_7220_IntMask_RcvAvail8IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvAvail7IntMask_LSB 0x7 +#define QIB_7220_IntMask_RcvAvail7IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvAvail6IntMask_LSB 0x6 +#define QIB_7220_IntMask_RcvAvail6IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvAvail5IntMask_LSB 0x5 +#define QIB_7220_IntMask_RcvAvail5IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvAvail4IntMask_LSB 0x4 +#define QIB_7220_IntMask_RcvAvail4IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvAvail3IntMask_LSB 0x3 +#define QIB_7220_IntMask_RcvAvail3IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvAvail2IntMask_LSB 0x2 +#define QIB_7220_IntMask_RcvAvail2IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvAvail1IntMask_LSB 0x1 +#define QIB_7220_IntMask_RcvAvail1IntMask_RMASK 0x1 +#define QIB_7220_IntMask_RcvAvail0IntMask_LSB 0x0 +#define QIB_7220_IntMask_RcvAvail0IntMask_RMASK 0x1 + +#define QIB_7220_IntStatus_OFFS 0x70 +#define QIB_7220_IntStatus_SDmaInt_LSB 0x3F +#define QIB_7220_IntStatus_SDmaInt_RMASK 0x1 +#define QIB_7220_IntStatus_SDmaDisabled_LSB 0x3E +#define QIB_7220_IntStatus_SDmaDisabled_RMASK 0x1 +#define QIB_7220_IntStatus_Reserved_LSB 0x31 +#define QIB_7220_IntStatus_Reserved_RMASK 0x1FFF +#define QIB_7220_IntStatus_RcvUrg16_LSB 0x30 +#define QIB_7220_IntStatus_RcvUrg16_RMASK 0x1 +#define QIB_7220_IntStatus_RcvUrg15_LSB 0x2F +#define QIB_7220_IntStatus_RcvUrg15_RMASK 0x1 +#define QIB_7220_IntStatus_RcvUrg14_LSB 0x2E +#define QIB_7220_IntStatus_RcvUrg14_RMASK 0x1 +#define QIB_7220_IntStatus_RcvUrg13_LSB 0x2D +#define QIB_7220_IntStatus_RcvUrg13_RMASK 0x1 +#define QIB_7220_IntStatus_RcvUrg12_LSB 0x2C +#define QIB_7220_IntStatus_RcvUrg12_RMASK 0x1 +#define QIB_7220_IntStatus_RcvUrg11_LSB 0x2B +#define QIB_7220_IntStatus_RcvUrg11_RMASK 0x1 +#define QIB_7220_IntStatus_RcvUrg10_LSB 0x2A +#define QIB_7220_IntStatus_RcvUrg10_RMASK 0x1 +#define QIB_7220_IntStatus_RcvUrg9_LSB 0x29 +#define QIB_7220_IntStatus_RcvUrg9_RMASK 0x1 +#define QIB_7220_IntStatus_RcvUrg8_LSB 0x28 +#define QIB_7220_IntStatus_RcvUrg8_RMASK 0x1 +#define QIB_7220_IntStatus_RcvUrg7_LSB 0x27 +#define QIB_7220_IntStatus_RcvUrg7_RMASK 0x1 +#define QIB_7220_IntStatus_RcvUrg6_LSB 0x26 +#define QIB_7220_IntStatus_RcvUrg6_RMASK 0x1 +#define QIB_7220_IntStatus_RcvUrg5_LSB 0x25 +#define QIB_7220_IntStatus_RcvUrg5_RMASK 0x1 +#define QIB_7220_IntStatus_RcvUrg4_LSB 0x24 +#define QIB_7220_IntStatus_RcvUrg4_RMASK 0x1 +#define QIB_7220_IntStatus_RcvUrg3_LSB 0x23 +#define QIB_7220_IntStatus_RcvUrg3_RMASK 0x1 +#define QIB_7220_IntStatus_RcvUrg2_LSB 0x22 +#define QIB_7220_IntStatus_RcvUrg2_RMASK 0x1 +#define QIB_7220_IntStatus_RcvUrg1_LSB 0x21 +#define QIB_7220_IntStatus_RcvUrg1_RMASK 0x1 +#define QIB_7220_IntStatus_RcvUrg0_LSB 0x20 +#define QIB_7220_IntStatus_RcvUrg0_RMASK 0x1 +#define QIB_7220_IntStatus_Error_LSB 0x1F +#define QIB_7220_IntStatus_Error_RMASK 0x1 +#define QIB_7220_IntStatus_PioSent_LSB 0x1E +#define QIB_7220_IntStatus_PioSent_RMASK 0x1 +#define QIB_7220_IntStatus_PioBufAvail_LSB 0x1D +#define QIB_7220_IntStatus_PioBufAvail_RMASK 0x1 +#define QIB_7220_IntStatus_assertGPIO_LSB 0x1C +#define QIB_7220_IntStatus_assertGPIO_RMASK 0x1 +#define QIB_7220_IntStatus_IBSerdesTrimDone_LSB 0x1B +#define QIB_7220_IntStatus_IBSerdesTrimDone_RMASK 0x1 +#define QIB_7220_IntStatus_JInt_LSB 0x1A +#define QIB_7220_IntStatus_JInt_RMASK 0x1 +#define QIB_7220_IntStatus_Reserved1_LSB 0x11 +#define QIB_7220_IntStatus_Reserved1_RMASK 0x1FF +#define QIB_7220_IntStatus_RcvAvail16_LSB 0x10 +#define QIB_7220_IntStatus_RcvAvail16_RMASK 0x1 +#define QIB_7220_IntStatus_RcvAvail15_LSB 0xF +#define QIB_7220_IntStatus_RcvAvail15_RMASK 0x1 +#define QIB_7220_IntStatus_RcvAvail14_LSB 0xE +#define QIB_7220_IntStatus_RcvAvail14_RMASK 0x1 +#define QIB_7220_IntStatus_RcvAvail13_LSB 0xD +#define QIB_7220_IntStatus_RcvAvail13_RMASK 0x1 +#define QIB_7220_IntStatus_RcvAvail12_LSB 0xC +#define QIB_7220_IntStatus_RcvAvail12_RMASK 0x1 +#define QIB_7220_IntStatus_RcvAvail11_LSB 0xB +#define QIB_7220_IntStatus_RcvAvail11_RMASK 0x1 +#define QIB_7220_IntStatus_RcvAvail10_LSB 0xA +#define QIB_7220_IntStatus_RcvAvail10_RMASK 0x1 +#define QIB_7220_IntStatus_RcvAvail9_LSB 0x9 +#define QIB_7220_IntStatus_RcvAvail9_RMASK 0x1 +#define QIB_7220_IntStatus_RcvAvail8_LSB 0x8 +#define QIB_7220_IntStatus_RcvAvail8_RMASK 0x1 +#define QIB_7220_IntStatus_RcvAvail7_LSB 0x7 +#define QIB_7220_IntStatus_RcvAvail7_RMASK 0x1 +#define QIB_7220_IntStatus_RcvAvail6_LSB 0x6 +#define QIB_7220_IntStatus_RcvAvail6_RMASK 0x1 +#define QIB_7220_IntStatus_RcvAvail5_LSB 0x5 +#define QIB_7220_IntStatus_RcvAvail5_RMASK 0x1 +#define QIB_7220_IntStatus_RcvAvail4_LSB 0x4 +#define QIB_7220_IntStatus_RcvAvail4_RMASK 0x1 +#define QIB_7220_IntStatus_RcvAvail3_LSB 0x3 +#define QIB_7220_IntStatus_RcvAvail3_RMASK 0x1 +#define QIB_7220_IntStatus_RcvAvail2_LSB 0x2 +#define QIB_7220_IntStatus_RcvAvail2_RMASK 0x1 +#define QIB_7220_IntStatus_RcvAvail1_LSB 0x1 +#define QIB_7220_IntStatus_RcvAvail1_RMASK 0x1 +#define QIB_7220_IntStatus_RcvAvail0_LSB 0x0 +#define QIB_7220_IntStatus_RcvAvail0_RMASK 0x1 + +#define QIB_7220_IntClear_OFFS 0x78 +#define QIB_7220_IntClear_SDmaIntClear_LSB 0x3F +#define QIB_7220_IntClear_SDmaIntClear_RMASK 0x1 +#define QIB_7220_IntClear_SDmaDisabledClear_LSB 0x3E +#define QIB_7220_IntClear_SDmaDisabledClear_RMASK 0x1 +#define QIB_7220_IntClear_Reserved_LSB 0x31 +#define QIB_7220_IntClear_Reserved_RMASK 0x1FFF +#define QIB_7220_IntClear_RcvUrg16IntClear_LSB 0x30 +#define QIB_7220_IntClear_RcvUrg16IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvUrg15IntClear_LSB 0x2F +#define QIB_7220_IntClear_RcvUrg15IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvUrg14IntClear_LSB 0x2E +#define QIB_7220_IntClear_RcvUrg14IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvUrg13IntClear_LSB 0x2D +#define QIB_7220_IntClear_RcvUrg13IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvUrg12IntClear_LSB 0x2C +#define QIB_7220_IntClear_RcvUrg12IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvUrg11IntClear_LSB 0x2B +#define QIB_7220_IntClear_RcvUrg11IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvUrg10IntClear_LSB 0x2A +#define QIB_7220_IntClear_RcvUrg10IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvUrg9IntClear_LSB 0x29 +#define QIB_7220_IntClear_RcvUrg9IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvUrg8IntClear_LSB 0x28 +#define QIB_7220_IntClear_RcvUrg8IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvUrg7IntClear_LSB 0x27 +#define QIB_7220_IntClear_RcvUrg7IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvUrg6IntClear_LSB 0x26 +#define QIB_7220_IntClear_RcvUrg6IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvUrg5IntClear_LSB 0x25 +#define QIB_7220_IntClear_RcvUrg5IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvUrg4IntClear_LSB 0x24 +#define QIB_7220_IntClear_RcvUrg4IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvUrg3IntClear_LSB 0x23 +#define QIB_7220_IntClear_RcvUrg3IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvUrg2IntClear_LSB 0x22 +#define QIB_7220_IntClear_RcvUrg2IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvUrg1IntClear_LSB 0x21 +#define QIB_7220_IntClear_RcvUrg1IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvUrg0IntClear_LSB 0x20 +#define QIB_7220_IntClear_RcvUrg0IntClear_RMASK 0x1 +#define QIB_7220_IntClear_ErrorIntClear_LSB 0x1F +#define QIB_7220_IntClear_ErrorIntClear_RMASK 0x1 +#define QIB_7220_IntClear_PioSetIntClear_LSB 0x1E +#define QIB_7220_IntClear_PioSetIntClear_RMASK 0x1 +#define QIB_7220_IntClear_PioBufAvailIntClear_LSB 0x1D +#define QIB_7220_IntClear_PioBufAvailIntClear_RMASK 0x1 +#define QIB_7220_IntClear_assertGPIOIntClear_LSB 0x1C +#define QIB_7220_IntClear_assertGPIOIntClear_RMASK 0x1 +#define QIB_7220_IntClear_IBSerdesTrimDoneClear_LSB 0x1B +#define QIB_7220_IntClear_IBSerdesTrimDoneClear_RMASK 0x1 +#define QIB_7220_IntClear_JIntClear_LSB 0x1A +#define QIB_7220_IntClear_JIntClear_RMASK 0x1 +#define QIB_7220_IntClear_Reserved1_LSB 0x11 +#define QIB_7220_IntClear_Reserved1_RMASK 0x1FF +#define QIB_7220_IntClear_RcvAvail16IntClear_LSB 0x10 +#define QIB_7220_IntClear_RcvAvail16IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvAvail15IntClear_LSB 0xF +#define QIB_7220_IntClear_RcvAvail15IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvAvail14IntClear_LSB 0xE +#define QIB_7220_IntClear_RcvAvail14IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvAvail13IntClear_LSB 0xD +#define QIB_7220_IntClear_RcvAvail13IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvAvail12IntClear_LSB 0xC +#define QIB_7220_IntClear_RcvAvail12IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvAvail11IntClear_LSB 0xB +#define QIB_7220_IntClear_RcvAvail11IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvAvail10IntClear_LSB 0xA +#define QIB_7220_IntClear_RcvAvail10IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvAvail9IntClear_LSB 0x9 +#define QIB_7220_IntClear_RcvAvail9IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvAvail8IntClear_LSB 0x8 +#define QIB_7220_IntClear_RcvAvail8IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvAvail7IntClear_LSB 0x7 +#define QIB_7220_IntClear_RcvAvail7IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvAvail6IntClear_LSB 0x6 +#define QIB_7220_IntClear_RcvAvail6IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvAvail5IntClear_LSB 0x5 +#define QIB_7220_IntClear_RcvAvail5IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvAvail4IntClear_LSB 0x4 +#define QIB_7220_IntClear_RcvAvail4IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvAvail3IntClear_LSB 0x3 +#define QIB_7220_IntClear_RcvAvail3IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvAvail2IntClear_LSB 0x2 +#define QIB_7220_IntClear_RcvAvail2IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvAvail1IntClear_LSB 0x1 +#define QIB_7220_IntClear_RcvAvail1IntClear_RMASK 0x1 +#define QIB_7220_IntClear_RcvAvail0IntClear_LSB 0x0 +#define QIB_7220_IntClear_RcvAvail0IntClear_RMASK 0x1 + +#define QIB_7220_ErrMask_OFFS 0x80 +#define QIB_7220_ErrMask_Reserved_LSB 0x36 +#define QIB_7220_ErrMask_Reserved_RMASK 0x3FF +#define QIB_7220_ErrMask_InvalidEEPCmdMask_LSB 0x35 +#define QIB_7220_ErrMask_InvalidEEPCmdMask_RMASK 0x1 +#define QIB_7220_ErrMask_SDmaDescAddrMisalignErrMask_LSB 0x34 +#define QIB_7220_ErrMask_SDmaDescAddrMisalignErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_HardwareErrMask_LSB 0x33 +#define QIB_7220_ErrMask_HardwareErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_ResetNegatedMask_LSB 0x32 +#define QIB_7220_ErrMask_ResetNegatedMask_RMASK 0x1 +#define QIB_7220_ErrMask_InvalidAddrErrMask_LSB 0x31 +#define QIB_7220_ErrMask_InvalidAddrErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_IBStatusChangedMask_LSB 0x30 +#define QIB_7220_ErrMask_IBStatusChangedMask_RMASK 0x1 +#define QIB_7220_ErrMask_SDmaUnexpDataErrMask_LSB 0x2F +#define QIB_7220_ErrMask_SDmaUnexpDataErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SDmaMissingDwErrMask_LSB 0x2E +#define QIB_7220_ErrMask_SDmaMissingDwErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SDmaDwEnErrMask_LSB 0x2D +#define QIB_7220_ErrMask_SDmaDwEnErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SDmaRpyTagErrMask_LSB 0x2C +#define QIB_7220_ErrMask_SDmaRpyTagErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SDma1stDescErrMask_LSB 0x2B +#define QIB_7220_ErrMask_SDma1stDescErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SDmaBaseErrMask_LSB 0x2A +#define QIB_7220_ErrMask_SDmaBaseErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SDmaTailOutOfBoundErrMask_LSB 0x29 +#define QIB_7220_ErrMask_SDmaTailOutOfBoundErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SDmaOutOfBoundErrMask_LSB 0x28 +#define QIB_7220_ErrMask_SDmaOutOfBoundErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SDmaGenMismatchErrMask_LSB 0x27 +#define QIB_7220_ErrMask_SDmaGenMismatchErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SendBufMisuseErrMask_LSB 0x26 +#define QIB_7220_ErrMask_SendBufMisuseErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SendUnsupportedVLErrMask_LSB 0x25 +#define QIB_7220_ErrMask_SendUnsupportedVLErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SendUnexpectedPktNumErrMask_LSB 0x24 +#define QIB_7220_ErrMask_SendUnexpectedPktNumErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SendPioArmLaunchErrMask_LSB 0x23 +#define QIB_7220_ErrMask_SendPioArmLaunchErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SendDroppedDataPktErrMask_LSB 0x22 +#define QIB_7220_ErrMask_SendDroppedDataPktErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SendDroppedSmpPktErrMask_LSB 0x21 +#define QIB_7220_ErrMask_SendDroppedSmpPktErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SendPktLenErrMask_LSB 0x20 +#define QIB_7220_ErrMask_SendPktLenErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SendUnderRunErrMask_LSB 0x1F +#define QIB_7220_ErrMask_SendUnderRunErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SendMaxPktLenErrMask_LSB 0x1E +#define QIB_7220_ErrMask_SendMaxPktLenErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SendMinPktLenErrMask_LSB 0x1D +#define QIB_7220_ErrMask_SendMinPktLenErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SDmaDisabledErrMask_LSB 0x1C +#define QIB_7220_ErrMask_SDmaDisabledErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_SendSpecialTriggerErrMask_LSB 0x1B +#define QIB_7220_ErrMask_SendSpecialTriggerErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_Reserved1_LSB 0x12 +#define QIB_7220_ErrMask_Reserved1_RMASK 0x1FF +#define QIB_7220_ErrMask_RcvIBLostLinkErrMask_LSB 0x11 +#define QIB_7220_ErrMask_RcvIBLostLinkErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_RcvHdrErrMask_LSB 0x10 +#define QIB_7220_ErrMask_RcvHdrErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_RcvHdrLenErrMask_LSB 0xF +#define QIB_7220_ErrMask_RcvHdrLenErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_RcvBadTidErrMask_LSB 0xE +#define QIB_7220_ErrMask_RcvBadTidErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_RcvHdrFullErrMask_LSB 0xD +#define QIB_7220_ErrMask_RcvHdrFullErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_RcvEgrFullErrMask_LSB 0xC +#define QIB_7220_ErrMask_RcvEgrFullErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_RcvBadVersionErrMask_LSB 0xB +#define QIB_7220_ErrMask_RcvBadVersionErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_RcvIBFlowErrMask_LSB 0xA +#define QIB_7220_ErrMask_RcvIBFlowErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_RcvEBPErrMask_LSB 0x9 +#define QIB_7220_ErrMask_RcvEBPErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_RcvUnsupportedVLErrMask_LSB 0x8 +#define QIB_7220_ErrMask_RcvUnsupportedVLErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_RcvUnexpectedCharErrMask_LSB 0x7 +#define QIB_7220_ErrMask_RcvUnexpectedCharErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_RcvShortPktLenErrMask_LSB 0x6 +#define QIB_7220_ErrMask_RcvShortPktLenErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_RcvLongPktLenErrMask_LSB 0x5 +#define QIB_7220_ErrMask_RcvLongPktLenErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_RcvMaxPktLenErrMask_LSB 0x4 +#define QIB_7220_ErrMask_RcvMaxPktLenErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_RcvMinPktLenErrMask_LSB 0x3 +#define QIB_7220_ErrMask_RcvMinPktLenErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_RcvICRCErrMask_LSB 0x2 +#define QIB_7220_ErrMask_RcvICRCErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_RcvVCRCErrMask_LSB 0x1 +#define QIB_7220_ErrMask_RcvVCRCErrMask_RMASK 0x1 +#define QIB_7220_ErrMask_RcvFormatErrMask_LSB 0x0 +#define QIB_7220_ErrMask_RcvFormatErrMask_RMASK 0x1 + +#define QIB_7220_ErrStatus_OFFS 0x88 +#define QIB_7220_ErrStatus_Reserved_LSB 0x36 +#define QIB_7220_ErrStatus_Reserved_RMASK 0x3FF +#define QIB_7220_ErrStatus_InvalidEEPCmdErr_LSB 0x35 +#define QIB_7220_ErrStatus_InvalidEEPCmdErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SDmaDescAddrMisalignErr_LSB 0x34 +#define QIB_7220_ErrStatus_SDmaDescAddrMisalignErr_RMASK 0x1 +#define QIB_7220_ErrStatus_HardwareErr_LSB 0x33 +#define QIB_7220_ErrStatus_HardwareErr_RMASK 0x1 +#define QIB_7220_ErrStatus_ResetNegated_LSB 0x32 +#define QIB_7220_ErrStatus_ResetNegated_RMASK 0x1 +#define QIB_7220_ErrStatus_InvalidAddrErr_LSB 0x31 +#define QIB_7220_ErrStatus_InvalidAddrErr_RMASK 0x1 +#define QIB_7220_ErrStatus_IBStatusChanged_LSB 0x30 +#define QIB_7220_ErrStatus_IBStatusChanged_RMASK 0x1 +#define QIB_7220_ErrStatus_SDmaUnexpDataErr_LSB 0x2F +#define QIB_7220_ErrStatus_SDmaUnexpDataErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SDmaMissingDwErr_LSB 0x2E +#define QIB_7220_ErrStatus_SDmaMissingDwErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SDmaDwEnErr_LSB 0x2D +#define QIB_7220_ErrStatus_SDmaDwEnErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SDmaRpyTagErr_LSB 0x2C +#define QIB_7220_ErrStatus_SDmaRpyTagErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SDma1stDescErr_LSB 0x2B +#define QIB_7220_ErrStatus_SDma1stDescErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SDmaBaseErr_LSB 0x2A +#define QIB_7220_ErrStatus_SDmaBaseErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SDmaTailOutOfBoundErr_LSB 0x29 +#define QIB_7220_ErrStatus_SDmaTailOutOfBoundErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SDmaOutOfBoundErr_LSB 0x28 +#define QIB_7220_ErrStatus_SDmaOutOfBoundErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SDmaGenMismatchErr_LSB 0x27 +#define QIB_7220_ErrStatus_SDmaGenMismatchErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SendBufMisuseErr_LSB 0x26 +#define QIB_7220_ErrStatus_SendBufMisuseErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SendUnsupportedVLErr_LSB 0x25 +#define QIB_7220_ErrStatus_SendUnsupportedVLErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SendUnexpectedPktNumErr_LSB 0x24 +#define QIB_7220_ErrStatus_SendUnexpectedPktNumErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SendPioArmLaunchErr_LSB 0x23 +#define QIB_7220_ErrStatus_SendPioArmLaunchErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SendDroppedDataPktErr_LSB 0x22 +#define QIB_7220_ErrStatus_SendDroppedDataPktErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SendDroppedSmpPktErr_LSB 0x21 +#define QIB_7220_ErrStatus_SendDroppedSmpPktErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SendPktLenErr_LSB 0x20 +#define QIB_7220_ErrStatus_SendPktLenErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SendUnderRunErr_LSB 0x1F +#define QIB_7220_ErrStatus_SendUnderRunErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SendMaxPktLenErr_LSB 0x1E +#define QIB_7220_ErrStatus_SendMaxPktLenErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SendMinPktLenErr_LSB 0x1D +#define QIB_7220_ErrStatus_SendMinPktLenErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SDmaDisabledErr_LSB 0x1C +#define QIB_7220_ErrStatus_SDmaDisabledErr_RMASK 0x1 +#define QIB_7220_ErrStatus_SendSpecialTriggerErr_LSB 0x1B +#define QIB_7220_ErrStatus_SendSpecialTriggerErr_RMASK 0x1 +#define QIB_7220_ErrStatus_Reserved1_LSB 0x12 +#define QIB_7220_ErrStatus_Reserved1_RMASK 0x1FF +#define QIB_7220_ErrStatus_RcvIBLostLinkErr_LSB 0x11 +#define QIB_7220_ErrStatus_RcvIBLostLinkErr_RMASK 0x1 +#define QIB_7220_ErrStatus_RcvHdrErr_LSB 0x10 +#define QIB_7220_ErrStatus_RcvHdrErr_RMASK 0x1 +#define QIB_7220_ErrStatus_RcvHdrLenErr_LSB 0xF +#define QIB_7220_ErrStatus_RcvHdrLenErr_RMASK 0x1 +#define QIB_7220_ErrStatus_RcvBadTidErr_LSB 0xE +#define QIB_7220_ErrStatus_RcvBadTidErr_RMASK 0x1 +#define QIB_7220_ErrStatus_RcvHdrFullErr_LSB 0xD +#define QIB_7220_ErrStatus_RcvHdrFullErr_RMASK 0x1 +#define QIB_7220_ErrStatus_RcvEgrFullErr_LSB 0xC +#define QIB_7220_ErrStatus_RcvEgrFullErr_RMASK 0x1 +#define QIB_7220_ErrStatus_RcvBadVersionErr_LSB 0xB +#define QIB_7220_ErrStatus_RcvBadVersionErr_RMASK 0x1 +#define QIB_7220_ErrStatus_RcvIBFlowErr_LSB 0xA +#define QIB_7220_ErrStatus_RcvIBFlowErr_RMASK 0x1 +#define QIB_7220_ErrStatus_RcvEBPErr_LSB 0x9 +#define QIB_7220_ErrStatus_RcvEBPErr_RMASK 0x1 +#define QIB_7220_ErrStatus_RcvUnsupportedVLErr_LSB 0x8 +#define QIB_7220_ErrStatus_RcvUnsupportedVLErr_RMASK 0x1 +#define QIB_7220_ErrStatus_RcvUnexpectedCharErr_LSB 0x7 +#define QIB_7220_ErrStatus_RcvUnexpectedCharErr_RMASK 0x1 +#define QIB_7220_ErrStatus_RcvShortPktLenErr_LSB 0x6 +#define QIB_7220_ErrStatus_RcvShortPktLenErr_RMASK 0x1 +#define QIB_7220_ErrStatus_RcvLongPktLenErr_LSB 0x5 +#define QIB_7220_ErrStatus_RcvLongPktLenErr_RMASK 0x1 +#define QIB_7220_ErrStatus_RcvMaxPktLenErr_LSB 0x4 +#define QIB_7220_ErrStatus_RcvMaxPktLenErr_RMASK 0x1 +#define QIB_7220_ErrStatus_RcvMinPktLenErr_LSB 0x3 +#define QIB_7220_ErrStatus_RcvMinPktLenErr_RMASK 0x1 +#define QIB_7220_ErrStatus_RcvICRCErr_LSB 0x2 +#define QIB_7220_ErrStatus_RcvICRCErr_RMASK 0x1 +#define QIB_7220_ErrStatus_RcvVCRCErr_LSB 0x1 +#define QIB_7220_ErrStatus_RcvVCRCErr_RMASK 0x1 +#define QIB_7220_ErrStatus_RcvFormatErr_LSB 0x0 +#define QIB_7220_ErrStatus_RcvFormatErr_RMASK 0x1 + +#define QIB_7220_ErrClear_OFFS 0x90 +#define QIB_7220_ErrClear_Reserved_LSB 0x36 +#define QIB_7220_ErrClear_Reserved_RMASK 0x3FF +#define QIB_7220_ErrClear_InvalidEEPCmdErrClear_LSB 0x35 +#define QIB_7220_ErrClear_InvalidEEPCmdErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SDmaDescAddrMisalignErrClear_LSB 0x34 +#define QIB_7220_ErrClear_SDmaDescAddrMisalignErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_HardwareErrClear_LSB 0x33 +#define QIB_7220_ErrClear_HardwareErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_ResetNegatedClear_LSB 0x32 +#define QIB_7220_ErrClear_ResetNegatedClear_RMASK 0x1 +#define QIB_7220_ErrClear_InvalidAddrErrClear_LSB 0x31 +#define QIB_7220_ErrClear_InvalidAddrErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_IBStatusChangedClear_LSB 0x30 +#define QIB_7220_ErrClear_IBStatusChangedClear_RMASK 0x1 +#define QIB_7220_ErrClear_SDmaUnexpDataErrClear_LSB 0x2F +#define QIB_7220_ErrClear_SDmaUnexpDataErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SDmaMissingDwErrClear_LSB 0x2E +#define QIB_7220_ErrClear_SDmaMissingDwErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SDmaDwEnErrClear_LSB 0x2D +#define QIB_7220_ErrClear_SDmaDwEnErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SDmaRpyTagErrClear_LSB 0x2C +#define QIB_7220_ErrClear_SDmaRpyTagErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SDma1stDescErrClear_LSB 0x2B +#define QIB_7220_ErrClear_SDma1stDescErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SDmaBaseErrClear_LSB 0x2A +#define QIB_7220_ErrClear_SDmaBaseErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SDmaTailOutOfBoundErrClear_LSB 0x29 +#define QIB_7220_ErrClear_SDmaTailOutOfBoundErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SDmaOutOfBoundErrClear_LSB 0x28 +#define QIB_7220_ErrClear_SDmaOutOfBoundErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SDmaGenMismatchErrClear_LSB 0x27 +#define QIB_7220_ErrClear_SDmaGenMismatchErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SendBufMisuseErrClear_LSB 0x26 +#define QIB_7220_ErrClear_SendBufMisuseErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SendUnsupportedVLErrClear_LSB 0x25 +#define QIB_7220_ErrClear_SendUnsupportedVLErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SendUnexpectedPktNumErrClear_LSB 0x24 +#define QIB_7220_ErrClear_SendUnexpectedPktNumErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SendPioArmLaunchErrClear_LSB 0x23 +#define QIB_7220_ErrClear_SendPioArmLaunchErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SendDroppedDataPktErrClear_LSB 0x22 +#define QIB_7220_ErrClear_SendDroppedDataPktErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SendDroppedSmpPktErrClear_LSB 0x21 +#define QIB_7220_ErrClear_SendDroppedSmpPktErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SendPktLenErrClear_LSB 0x20 +#define QIB_7220_ErrClear_SendPktLenErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SendUnderRunErrClear_LSB 0x1F +#define QIB_7220_ErrClear_SendUnderRunErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SendMaxPktLenErrClear_LSB 0x1E +#define QIB_7220_ErrClear_SendMaxPktLenErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SendMinPktLenErrClear_LSB 0x1D +#define QIB_7220_ErrClear_SendMinPktLenErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SDmaDisabledErrClear_LSB 0x1C +#define QIB_7220_ErrClear_SDmaDisabledErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_SendSpecialTriggerErrClear_LSB 0x1B +#define QIB_7220_ErrClear_SendSpecialTriggerErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_Reserved1_LSB 0x12 +#define QIB_7220_ErrClear_Reserved1_RMASK 0x1FF +#define QIB_7220_ErrClear_RcvIBLostLinkErrClear_LSB 0x11 +#define QIB_7220_ErrClear_RcvIBLostLinkErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_RcvHdrErrClear_LSB 0x10 +#define QIB_7220_ErrClear_RcvHdrErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_RcvHdrLenErrClear_LSB 0xF +#define QIB_7220_ErrClear_RcvHdrLenErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_RcvBadTidErrClear_LSB 0xE +#define QIB_7220_ErrClear_RcvBadTidErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_RcvHdrFullErrClear_LSB 0xD +#define QIB_7220_ErrClear_RcvHdrFullErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_RcvEgrFullErrClear_LSB 0xC +#define QIB_7220_ErrClear_RcvEgrFullErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_RcvBadVersionErrClear_LSB 0xB +#define QIB_7220_ErrClear_RcvBadVersionErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_RcvIBFlowErrClear_LSB 0xA +#define QIB_7220_ErrClear_RcvIBFlowErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_RcvEBPErrClear_LSB 0x9 +#define QIB_7220_ErrClear_RcvEBPErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_RcvUnsupportedVLErrClear_LSB 0x8 +#define QIB_7220_ErrClear_RcvUnsupportedVLErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_RcvUnexpectedCharErrClear_LSB 0x7 +#define QIB_7220_ErrClear_RcvUnexpectedCharErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_RcvShortPktLenErrClear_LSB 0x6 +#define QIB_7220_ErrClear_RcvShortPktLenErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_RcvLongPktLenErrClear_LSB 0x5 +#define QIB_7220_ErrClear_RcvLongPktLenErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_RcvMaxPktLenErrClear_LSB 0x4 +#define QIB_7220_ErrClear_RcvMaxPktLenErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_RcvMinPktLenErrClear_LSB 0x3 +#define QIB_7220_ErrClear_RcvMinPktLenErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_RcvICRCErrClear_LSB 0x2 +#define QIB_7220_ErrClear_RcvICRCErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_RcvVCRCErrClear_LSB 0x1 +#define QIB_7220_ErrClear_RcvVCRCErrClear_RMASK 0x1 +#define QIB_7220_ErrClear_RcvFormatErrClear_LSB 0x0 +#define QIB_7220_ErrClear_RcvFormatErrClear_RMASK 0x1 + +#define QIB_7220_HwErrMask_OFFS 0x98 +#define QIB_7220_HwErrMask_IBCBusFromSPCParityErrMask_LSB 0x3F +#define QIB_7220_HwErrMask_IBCBusFromSPCParityErrMask_RMASK 0x1 +#define QIB_7220_HwErrMask_IBCBusToSPCParityErrMask_LSB 0x3E +#define QIB_7220_HwErrMask_IBCBusToSPCParityErrMask_RMASK 0x1 +#define QIB_7220_HwErrMask_Clk_uC_PLLNotLockedMask_LSB 0x3D +#define QIB_7220_HwErrMask_Clk_uC_PLLNotLockedMask_RMASK 0x1 +#define QIB_7220_HwErrMask_IBSerdesPClkNotDetectMask_LSB 0x3C +#define QIB_7220_HwErrMask_IBSerdesPClkNotDetectMask_RMASK 0x1 +#define QIB_7220_HwErrMask_PCIESerdesQ3PClkNotDetectMask_LSB 0x3B +#define QIB_7220_HwErrMask_PCIESerdesQ3PClkNotDetectMask_RMASK 0x1 +#define QIB_7220_HwErrMask_PCIESerdesQ2PClkNotDetectMask_LSB 0x3A +#define QIB_7220_HwErrMask_PCIESerdesQ2PClkNotDetectMask_RMASK 0x1 +#define QIB_7220_HwErrMask_PCIESerdesQ1PClkNotDetectMask_LSB 0x39 +#define QIB_7220_HwErrMask_PCIESerdesQ1PClkNotDetectMask_RMASK 0x1 +#define QIB_7220_HwErrMask_PCIESerdesQ0PClkNotDetectMask_LSB 0x38 +#define QIB_7220_HwErrMask_PCIESerdesQ0PClkNotDetectMask_RMASK 0x1 +#define QIB_7220_HwErrMask_Reserved_LSB 0x37 +#define QIB_7220_HwErrMask_Reserved_RMASK 0x1 +#define QIB_7220_HwErrMask_PowerOnBISTFailedMask_LSB 0x36 +#define QIB_7220_HwErrMask_PowerOnBISTFailedMask_RMASK 0x1 +#define QIB_7220_HwErrMask_Reserved1_LSB 0x33 +#define QIB_7220_HwErrMask_Reserved1_RMASK 0x7 +#define QIB_7220_HwErrMask_RXEMemParityErrMask_LSB 0x2C +#define QIB_7220_HwErrMask_RXEMemParityErrMask_RMASK 0x7F +#define QIB_7220_HwErrMask_TXEMemParityErrMask_LSB 0x28 +#define QIB_7220_HwErrMask_TXEMemParityErrMask_RMASK 0xF +#define QIB_7220_HwErrMask_DDSRXEQMemoryParityErrMask_LSB 0x27 +#define QIB_7220_HwErrMask_DDSRXEQMemoryParityErrMask_RMASK 0x1 +#define QIB_7220_HwErrMask_IB_uC_MemoryParityErrMask_LSB 0x26 +#define QIB_7220_HwErrMask_IB_uC_MemoryParityErrMask_RMASK 0x1 +#define QIB_7220_HwErrMask_PCIEOct1_uC_MemoryParityErrMask_LSB 0x25 +#define QIB_7220_HwErrMask_PCIEOct1_uC_MemoryParityErrMask_RMASK 0x1 +#define QIB_7220_HwErrMask_PCIEOct0_uC_MemoryParityErrMask_LSB 0x24 +#define QIB_7220_HwErrMask_PCIEOct0_uC_MemoryParityErrMask_RMASK 0x1 +#define QIB_7220_HwErrMask_Reserved2_LSB 0x22 +#define QIB_7220_HwErrMask_Reserved2_RMASK 0x3 +#define QIB_7220_HwErrMask_PCIeBusParityErrMask_LSB 0x1F +#define QIB_7220_HwErrMask_PCIeBusParityErrMask_RMASK 0x7 +#define QIB_7220_HwErrMask_PcieCplTimeoutMask_LSB 0x1E +#define QIB_7220_HwErrMask_PcieCplTimeoutMask_RMASK 0x1 +#define QIB_7220_HwErrMask_PoisonedTLPMask_LSB 0x1D +#define QIB_7220_HwErrMask_PoisonedTLPMask_RMASK 0x1 +#define QIB_7220_HwErrMask_SDmaMemReadErrMask_LSB 0x1C +#define QIB_7220_HwErrMask_SDmaMemReadErrMask_RMASK 0x1 +#define QIB_7220_HwErrMask_Reserved3_LSB 0x8 +#define QIB_7220_HwErrMask_Reserved3_RMASK 0xFFFFF +#define QIB_7220_HwErrMask_PCIeMemParityErrMask_LSB 0x0 +#define QIB_7220_HwErrMask_PCIeMemParityErrMask_RMASK 0xFF + +#define QIB_7220_HwErrStatus_OFFS 0xA0 +#define QIB_7220_HwErrStatus_IBCBusFromSPCParityErr_LSB 0x3F +#define QIB_7220_HwErrStatus_IBCBusFromSPCParityErr_RMASK 0x1 +#define QIB_7220_HwErrStatus_IBCBusToSPCParityErr_LSB 0x3E +#define QIB_7220_HwErrStatus_IBCBusToSPCParityErr_RMASK 0x1 +#define QIB_7220_HwErrStatus_Clk_uC_PLLNotLocked_LSB 0x3D +#define QIB_7220_HwErrStatus_Clk_uC_PLLNotLocked_RMASK 0x1 +#define QIB_7220_HwErrStatus_IBSerdesPClkNotDetect_LSB 0x3C +#define QIB_7220_HwErrStatus_IBSerdesPClkNotDetect_RMASK 0x1 +#define QIB_7220_HwErrStatus_PCIESerdesQ3PClkNotDetect_LSB 0x3B +#define QIB_7220_HwErrStatus_PCIESerdesQ3PClkNotDetect_RMASK 0x1 +#define QIB_7220_HwErrStatus_PCIESerdesQ2PClkNotDetect_LSB 0x3A +#define QIB_7220_HwErrStatus_PCIESerdesQ2PClkNotDetect_RMASK 0x1 +#define QIB_7220_HwErrStatus_PCIESerdesQ1PClkNotDetect_LSB 0x39 +#define QIB_7220_HwErrStatus_PCIESerdesQ1PClkNotDetect_RMASK 0x1 +#define QIB_7220_HwErrStatus_PCIESerdesQ0PClkNotDetect_LSB 0x38 +#define QIB_7220_HwErrStatus_PCIESerdesQ0PClkNotDetect_RMASK 0x1 +#define QIB_7220_HwErrStatus_Reserved_LSB 0x37 +#define QIB_7220_HwErrStatus_Reserved_RMASK 0x1 +#define QIB_7220_HwErrStatus_PowerOnBISTFailed_LSB 0x36 +#define QIB_7220_HwErrStatus_PowerOnBISTFailed_RMASK 0x1 +#define QIB_7220_HwErrStatus_Reserved1_LSB 0x33 +#define QIB_7220_HwErrStatus_Reserved1_RMASK 0x7 +#define QIB_7220_HwErrStatus_RXEMemParity_LSB 0x2C +#define QIB_7220_HwErrStatus_RXEMemParity_RMASK 0x7F +#define QIB_7220_HwErrStatus_TXEMemParity_LSB 0x28 +#define QIB_7220_HwErrStatus_TXEMemParity_RMASK 0xF +#define QIB_7220_HwErrStatus_DDSRXEQMemoryParityErr_LSB 0x27 +#define QIB_7220_HwErrStatus_DDSRXEQMemoryParityErr_RMASK 0x1 +#define QIB_7220_HwErrStatus_IB_uC_MemoryParityErr_LSB 0x26 +#define QIB_7220_HwErrStatus_IB_uC_MemoryParityErr_RMASK 0x1 +#define QIB_7220_HwErrStatus_PCIE_uC_Oct1MemoryParityErr_LSB 0x25 +#define QIB_7220_HwErrStatus_PCIE_uC_Oct1MemoryParityErr_RMASK 0x1 +#define QIB_7220_HwErrStatus_PCIE_uC_Oct0MemoryParityErr_LSB 0x24 +#define QIB_7220_HwErrStatus_PCIE_uC_Oct0MemoryParityErr_RMASK 0x1 +#define QIB_7220_HwErrStatus_Reserved2_LSB 0x22 +#define QIB_7220_HwErrStatus_Reserved2_RMASK 0x3 +#define QIB_7220_HwErrStatus_PCIeBusParity_LSB 0x1F +#define QIB_7220_HwErrStatus_PCIeBusParity_RMASK 0x7 +#define QIB_7220_HwErrStatus_PcieCplTimeout_LSB 0x1E +#define QIB_7220_HwErrStatus_PcieCplTimeout_RMASK 0x1 +#define QIB_7220_HwErrStatus_PoisenedTLP_LSB 0x1D +#define QIB_7220_HwErrStatus_PoisenedTLP_RMASK 0x1 +#define QIB_7220_HwErrStatus_SDmaMemReadErr_LSB 0x1C +#define QIB_7220_HwErrStatus_SDmaMemReadErr_RMASK 0x1 +#define QIB_7220_HwErrStatus_Reserved3_LSB 0x8 +#define QIB_7220_HwErrStatus_Reserved3_RMASK 0xFFFFF +#define QIB_7220_HwErrStatus_PCIeMemParity_LSB 0x0 +#define QIB_7220_HwErrStatus_PCIeMemParity_RMASK 0xFF + +#define QIB_7220_HwErrClear_OFFS 0xA8 +#define QIB_7220_HwErrClear_IBCBusFromSPCParityErrClear_LSB 0x3F +#define QIB_7220_HwErrClear_IBCBusFromSPCParityErrClear_RMASK 0x1 +#define QIB_7220_HwErrClear_IBCBusToSPCparityErrClear_LSB 0x3E +#define QIB_7220_HwErrClear_IBCBusToSPCparityErrClear_RMASK 0x1 +#define QIB_7220_HwErrClear_Clk_uC_PLLNotLockedClear_LSB 0x3D +#define QIB_7220_HwErrClear_Clk_uC_PLLNotLockedClear_RMASK 0x1 +#define QIB_7220_HwErrClear_IBSerdesPClkNotDetectClear_LSB 0x3C +#define QIB_7220_HwErrClear_IBSerdesPClkNotDetectClear_RMASK 0x1 +#define QIB_7220_HwErrClear_PCIESerdesQ3PClkNotDetectClear_LSB 0x3B +#define QIB_7220_HwErrClear_PCIESerdesQ3PClkNotDetectClear_RMASK 0x1 +#define QIB_7220_HwErrClear_PCIESerdesQ2PClkNotDetectClear_LSB 0x3A +#define QIB_7220_HwErrClear_PCIESerdesQ2PClkNotDetectClear_RMASK 0x1 +#define QIB_7220_HwErrClear_PCIESerdesQ1PClkNotDetectClear_LSB 0x39 +#define QIB_7220_HwErrClear_PCIESerdesQ1PClkNotDetectClear_RMASK 0x1 +#define QIB_7220_HwErrClear_PCIESerdesQ0PClkNotDetectClear_LSB 0x38 +#define QIB_7220_HwErrClear_PCIESerdesQ0PClkNotDetectClear_RMASK 0x1 +#define QIB_7220_HwErrClear_Reserved_LSB 0x37 +#define QIB_7220_HwErrClear_Reserved_RMASK 0x1 +#define QIB_7220_HwErrClear_PowerOnBISTFailedClear_LSB 0x36 +#define QIB_7220_HwErrClear_PowerOnBISTFailedClear_RMASK 0x1 +#define QIB_7220_HwErrClear_Reserved1_LSB 0x33 +#define QIB_7220_HwErrClear_Reserved1_RMASK 0x7 +#define QIB_7220_HwErrClear_RXEMemParityClear_LSB 0x2C +#define QIB_7220_HwErrClear_RXEMemParityClear_RMASK 0x7F +#define QIB_7220_HwErrClear_TXEMemParityClear_LSB 0x28 +#define QIB_7220_HwErrClear_TXEMemParityClear_RMASK 0xF +#define QIB_7220_HwErrClear_DDSRXEQMemoryParityErrClear_LSB 0x27 +#define QIB_7220_HwErrClear_DDSRXEQMemoryParityErrClear_RMASK 0x1 +#define QIB_7220_HwErrClear_IB_uC_MemoryParityErrClear_LSB 0x26 +#define QIB_7220_HwErrClear_IB_uC_MemoryParityErrClear_RMASK 0x1 +#define QIB_7220_HwErrClear_PCIE_uC_Oct1MemoryParityErrClear_LSB 0x25 +#define QIB_7220_HwErrClear_PCIE_uC_Oct1MemoryParityErrClear_RMASK 0x1 +#define QIB_7220_HwErrClear_PCIE_uC_Oct0MemoryParityErrClear_LSB 0x24 +#define QIB_7220_HwErrClear_PCIE_uC_Oct0MemoryParityErrClear_RMASK 0x1 +#define QIB_7220_HwErrClear_Reserved2_LSB 0x22 +#define QIB_7220_HwErrClear_Reserved2_RMASK 0x3 +#define QIB_7220_HwErrClear_PCIeBusParityClr_LSB 0x1F +#define QIB_7220_HwErrClear_PCIeBusParityClr_RMASK 0x7 +#define QIB_7220_HwErrClear_PcieCplTimeoutClear_LSB 0x1E +#define QIB_7220_HwErrClear_PcieCplTimeoutClear_RMASK 0x1 +#define QIB_7220_HwErrClear_PoisonedTLPClear_LSB 0x1D +#define QIB_7220_HwErrClear_PoisonedTLPClear_RMASK 0x1 +#define QIB_7220_HwErrClear_SDmaMemReadErrClear_LSB 0x1C +#define QIB_7220_HwErrClear_SDmaMemReadErrClear_RMASK 0x1 +#define QIB_7220_HwErrClear_Reserved3_LSB 0x8 +#define QIB_7220_HwErrClear_Reserved3_RMASK 0xFFFFF +#define QIB_7220_HwErrClear_PCIeMemParityClr_LSB 0x0 +#define QIB_7220_HwErrClear_PCIeMemParityClr_RMASK 0xFF + +#define QIB_7220_HwDiagCtrl_OFFS 0xB0 +#define QIB_7220_HwDiagCtrl_ForceIBCBusFromSPCParityErr_LSB 0x3F +#define QIB_7220_HwDiagCtrl_ForceIBCBusFromSPCParityErr_RMASK 0x1 +#define QIB_7220_HwDiagCtrl_ForceIBCBusToSPCParityErr_LSB 0x3E +#define QIB_7220_HwDiagCtrl_ForceIBCBusToSPCParityErr_RMASK 0x1 +#define QIB_7220_HwDiagCtrl_CounterWrEnable_LSB 0x3D +#define QIB_7220_HwDiagCtrl_CounterWrEnable_RMASK 0x1 +#define QIB_7220_HwDiagCtrl_CounterDisable_LSB 0x3C +#define QIB_7220_HwDiagCtrl_CounterDisable_RMASK 0x1 +#define QIB_7220_HwDiagCtrl_Reserved_LSB 0x33 +#define QIB_7220_HwDiagCtrl_Reserved_RMASK 0x1FF +#define QIB_7220_HwDiagCtrl_ForceRxMemParityErr_LSB 0x2C +#define QIB_7220_HwDiagCtrl_ForceRxMemParityErr_RMASK 0x7F +#define QIB_7220_HwDiagCtrl_ForceTxMemparityErr_LSB 0x28 +#define QIB_7220_HwDiagCtrl_ForceTxMemparityErr_RMASK 0xF +#define QIB_7220_HwDiagCtrl_ForceDDSRXEQMemoryParityErr_LSB 0x27 +#define QIB_7220_HwDiagCtrl_ForceDDSRXEQMemoryParityErr_RMASK 0x1 +#define QIB_7220_HwDiagCtrl_ForceIB_uC_MemoryParityErr_LSB 0x26 +#define QIB_7220_HwDiagCtrl_ForceIB_uC_MemoryParityErr_RMASK 0x1 +#define QIB_7220_HwDiagCtrl_ForcePCIE_uC_Oct1MemoryParityErr_LSB 0x25 +#define QIB_7220_HwDiagCtrl_ForcePCIE_uC_Oct1MemoryParityErr_RMASK 0x1 +#define QIB_7220_HwDiagCtrl_ForcePCIE_uC_Oct0MemoryParityErr_LSB 0x24 +#define QIB_7220_HwDiagCtrl_ForcePCIE_uC_Oct0MemoryParityErr_RMASK 0x1 +#define QIB_7220_HwDiagCtrl_Reserved1_LSB 0x23 +#define QIB_7220_HwDiagCtrl_Reserved1_RMASK 0x1 +#define QIB_7220_HwDiagCtrl_forcePCIeBusParity_LSB 0x1F +#define QIB_7220_HwDiagCtrl_forcePCIeBusParity_RMASK 0xF +#define QIB_7220_HwDiagCtrl_Reserved2_LSB 0x8 +#define QIB_7220_HwDiagCtrl_Reserved2_RMASK 0x7FFFFF +#define QIB_7220_HwDiagCtrl_forcePCIeMemParity_LSB 0x0 +#define QIB_7220_HwDiagCtrl_forcePCIeMemParity_RMASK 0xFF + +#define QIB_7220_REG_0000B8_OFFS 0xB8 + +#define QIB_7220_IBCStatus_OFFS 0xC0 +#define QIB_7220_IBCStatus_TxCreditOk_LSB 0x1F +#define QIB_7220_IBCStatus_TxCreditOk_RMASK 0x1 +#define QIB_7220_IBCStatus_TxReady_LSB 0x1E +#define QIB_7220_IBCStatus_TxReady_RMASK 0x1 +#define QIB_7220_IBCStatus_Reserved_LSB 0xE +#define QIB_7220_IBCStatus_Reserved_RMASK 0xFFFF +#define QIB_7220_IBCStatus_IBTxLaneReversed_LSB 0xD +#define QIB_7220_IBCStatus_IBTxLaneReversed_RMASK 0x1 +#define QIB_7220_IBCStatus_IBRxLaneReversed_LSB 0xC +#define QIB_7220_IBCStatus_IBRxLaneReversed_RMASK 0x1 +#define QIB_7220_IBCStatus_IB_SERDES_TRIM_DONE_LSB 0xB +#define QIB_7220_IBCStatus_IB_SERDES_TRIM_DONE_RMASK 0x1 +#define QIB_7220_IBCStatus_DDS_RXEQ_FAIL_LSB 0xA +#define QIB_7220_IBCStatus_DDS_RXEQ_FAIL_RMASK 0x1 +#define QIB_7220_IBCStatus_LinkWidthActive_LSB 0x9 +#define QIB_7220_IBCStatus_LinkWidthActive_RMASK 0x1 +#define QIB_7220_IBCStatus_LinkSpeedActive_LSB 0x8 +#define QIB_7220_IBCStatus_LinkSpeedActive_RMASK 0x1 +#define QIB_7220_IBCStatus_LinkState_LSB 0x5 +#define QIB_7220_IBCStatus_LinkState_RMASK 0x7 +#define QIB_7220_IBCStatus_LinkTrainingState_LSB 0x0 +#define QIB_7220_IBCStatus_LinkTrainingState_RMASK 0x1F + +#define QIB_7220_IBCCtrl_OFFS 0xC8 +#define QIB_7220_IBCCtrl_Loopback_LSB 0x3F +#define QIB_7220_IBCCtrl_Loopback_RMASK 0x1 +#define QIB_7220_IBCCtrl_LinkDownDefaultState_LSB 0x3E +#define QIB_7220_IBCCtrl_LinkDownDefaultState_RMASK 0x1 +#define QIB_7220_IBCCtrl_Reserved_LSB 0x2B +#define QIB_7220_IBCCtrl_Reserved_RMASK 0x7FFFF +#define QIB_7220_IBCCtrl_CreditScale_LSB 0x28 +#define QIB_7220_IBCCtrl_CreditScale_RMASK 0x7 +#define QIB_7220_IBCCtrl_OverrunThreshold_LSB 0x24 +#define QIB_7220_IBCCtrl_OverrunThreshold_RMASK 0xF +#define QIB_7220_IBCCtrl_PhyerrThreshold_LSB 0x20 +#define QIB_7220_IBCCtrl_PhyerrThreshold_RMASK 0xF +#define QIB_7220_IBCCtrl_MaxPktLen_LSB 0x15 +#define QIB_7220_IBCCtrl_MaxPktLen_RMASK 0x7FF +#define QIB_7220_IBCCtrl_LinkCmd_LSB 0x13 +#define QIB_7220_IBCCtrl_LinkCmd_RMASK 0x3 +#define QIB_7220_IBCCtrl_LinkInitCmd_LSB 0x10 +#define QIB_7220_IBCCtrl_LinkInitCmd_RMASK 0x7 +#define QIB_7220_IBCCtrl_FlowCtrlWaterMark_LSB 0x8 +#define QIB_7220_IBCCtrl_FlowCtrlWaterMark_RMASK 0xFF +#define QIB_7220_IBCCtrl_FlowCtrlPeriod_LSB 0x0 +#define QIB_7220_IBCCtrl_FlowCtrlPeriod_RMASK 0xFF + +#define QIB_7220_EXTStatus_OFFS 0xD0 +#define QIB_7220_EXTStatus_GPIOIn_LSB 0x30 +#define QIB_7220_EXTStatus_GPIOIn_RMASK 0xFFFF +#define QIB_7220_EXTStatus_Reserved_LSB 0x20 +#define QIB_7220_EXTStatus_Reserved_RMASK 0xFFFF +#define QIB_7220_EXTStatus_Reserved1_LSB 0x10 +#define QIB_7220_EXTStatus_Reserved1_RMASK 0xFFFF +#define QIB_7220_EXTStatus_MemBISTDisabled_LSB 0xF +#define QIB_7220_EXTStatus_MemBISTDisabled_RMASK 0x1 +#define QIB_7220_EXTStatus_MemBISTEndTest_LSB 0xE +#define QIB_7220_EXTStatus_MemBISTEndTest_RMASK 0x1 +#define QIB_7220_EXTStatus_Reserved2_LSB 0x0 +#define QIB_7220_EXTStatus_Reserved2_RMASK 0x3FFF + +#define QIB_7220_EXTCtrl_OFFS 0xD8 +#define QIB_7220_EXTCtrl_GPIOOe_LSB 0x30 +#define QIB_7220_EXTCtrl_GPIOOe_RMASK 0xFFFF +#define QIB_7220_EXTCtrl_GPIOInvert_LSB 0x20 +#define QIB_7220_EXTCtrl_GPIOInvert_RMASK 0xFFFF +#define QIB_7220_EXTCtrl_Reserved_LSB 0x4 +#define QIB_7220_EXTCtrl_Reserved_RMASK 0xFFFFFFF +#define QIB_7220_EXTCtrl_LEDPriPortGreenOn_LSB 0x3 +#define QIB_7220_EXTCtrl_LEDPriPortGreenOn_RMASK 0x1 +#define QIB_7220_EXTCtrl_LEDPriPortYellowOn_LSB 0x2 +#define QIB_7220_EXTCtrl_LEDPriPortYellowOn_RMASK 0x1 +#define QIB_7220_EXTCtrl_LEDGblOkGreenOn_LSB 0x1 +#define QIB_7220_EXTCtrl_LEDGblOkGreenOn_RMASK 0x1 +#define QIB_7220_EXTCtrl_LEDGblErrRedOff_LSB 0x0 +#define QIB_7220_EXTCtrl_LEDGblErrRedOff_RMASK 0x1 + +#define QIB_7220_GPIOOut_OFFS 0xE0 + +#define QIB_7220_GPIOMask_OFFS 0xE8 + +#define QIB_7220_GPIOStatus_OFFS 0xF0 + +#define QIB_7220_GPIOClear_OFFS 0xF8 + +#define QIB_7220_RcvCtrl_OFFS 0x100 +#define QIB_7220_RcvCtrl_Reserved_LSB 0x27 +#define QIB_7220_RcvCtrl_Reserved_RMASK 0x1FFFFFF +#define QIB_7220_RcvCtrl_RcvQPMapEnable_LSB 0x26 +#define QIB_7220_RcvCtrl_RcvQPMapEnable_RMASK 0x1 +#define QIB_7220_RcvCtrl_PortCfg_LSB 0x24 +#define QIB_7220_RcvCtrl_PortCfg_RMASK 0x3 +#define QIB_7220_RcvCtrl_TailUpd_LSB 0x23 +#define QIB_7220_RcvCtrl_TailUpd_RMASK 0x1 +#define QIB_7220_RcvCtrl_RcvPartitionKeyDisable_LSB 0x22 +#define QIB_7220_RcvCtrl_RcvPartitionKeyDisable_RMASK 0x1 +#define QIB_7220_RcvCtrl_IntrAvail_LSB 0x11 +#define QIB_7220_RcvCtrl_IntrAvail_RMASK 0x1FFFF +#define QIB_7220_RcvCtrl_PortEnable_LSB 0x0 +#define QIB_7220_RcvCtrl_PortEnable_RMASK 0x1FFFF + +#define QIB_7220_RcvBTHQP_OFFS 0x108 +#define QIB_7220_RcvBTHQP_Reserved_LSB 0x18 +#define QIB_7220_RcvBTHQP_Reserved_RMASK 0xFF +#define QIB_7220_RcvBTHQP_RcvBTHQP_LSB 0x0 +#define QIB_7220_RcvBTHQP_RcvBTHQP_RMASK 0xFFFFFF + +#define QIB_7220_RcvHdrSize_OFFS 0x110 + +#define QIB_7220_RcvHdrCnt_OFFS 0x118 + +#define QIB_7220_RcvHdrEntSize_OFFS 0x120 + +#define QIB_7220_RcvTIDBase_OFFS 0x128 + +#define QIB_7220_RcvTIDCnt_OFFS 0x130 + +#define QIB_7220_RcvEgrBase_OFFS 0x138 + +#define QIB_7220_RcvEgrCnt_OFFS 0x140 + +#define QIB_7220_RcvBufBase_OFFS 0x148 + +#define QIB_7220_RcvBufSize_OFFS 0x150 + +#define QIB_7220_RxIntMemBase_OFFS 0x158 + +#define QIB_7220_RxIntMemSize_OFFS 0x160 + +#define QIB_7220_RcvPartitionKey_OFFS 0x168 + +#define QIB_7220_RcvQPMulticastPort_OFFS 0x170 +#define QIB_7220_RcvQPMulticastPort_Reserved_LSB 0x5 +#define QIB_7220_RcvQPMulticastPort_Reserved_RMASK 0x7FFFFFFFFFFFFFF +#define QIB_7220_RcvQPMulticastPort_RcvQpMcPort_LSB 0x0 +#define QIB_7220_RcvQPMulticastPort_RcvQpMcPort_RMASK 0x1F + +#define QIB_7220_RcvPktLEDCnt_OFFS 0x178 +#define QIB_7220_RcvPktLEDCnt_ONperiod_LSB 0x20 +#define QIB_7220_RcvPktLEDCnt_ONperiod_RMASK 0xFFFFFFFF +#define QIB_7220_RcvPktLEDCnt_OFFperiod_LSB 0x0 +#define QIB_7220_RcvPktLEDCnt_OFFperiod_RMASK 0xFFFFFFFF + +#define QIB_7220_IBCDDRCtrl_OFFS 0x180 +#define QIB_7220_IBCDDRCtrl_IB_DLID_MASK_LSB 0x30 +#define QIB_7220_IBCDDRCtrl_IB_DLID_MASK_RMASK 0xFFFF +#define QIB_7220_IBCDDRCtrl_IB_DLID_LSB 0x20 +#define QIB_7220_IBCDDRCtrl_IB_DLID_RMASK 0xFFFF +#define QIB_7220_IBCDDRCtrl_Reserved_LSB 0x1B +#define QIB_7220_IBCDDRCtrl_Reserved_RMASK 0x1F +#define QIB_7220_IBCDDRCtrl_HRTBT_REQ_LSB 0x1A +#define QIB_7220_IBCDDRCtrl_HRTBT_REQ_RMASK 0x1 +#define QIB_7220_IBCDDRCtrl_HRTBT_PORT_LSB 0x12 +#define QIB_7220_IBCDDRCtrl_HRTBT_PORT_RMASK 0xFF +#define QIB_7220_IBCDDRCtrl_HRTBT_AUTO_LSB 0x11 +#define QIB_7220_IBCDDRCtrl_HRTBT_AUTO_RMASK 0x1 +#define QIB_7220_IBCDDRCtrl_HRTBT_ENB_LSB 0x10 +#define QIB_7220_IBCDDRCtrl_HRTBT_ENB_RMASK 0x1 +#define QIB_7220_IBCDDRCtrl_SD_DDS_LSB 0xC +#define QIB_7220_IBCDDRCtrl_SD_DDS_RMASK 0xF +#define QIB_7220_IBCDDRCtrl_SD_DDSV_LSB 0xB +#define QIB_7220_IBCDDRCtrl_SD_DDSV_RMASK 0x1 +#define QIB_7220_IBCDDRCtrl_SD_ADD_ENB_LSB 0xA +#define QIB_7220_IBCDDRCtrl_SD_ADD_ENB_RMASK 0x1 +#define QIB_7220_IBCDDRCtrl_SD_RX_EQUAL_ENABLE_LSB 0x9 +#define QIB_7220_IBCDDRCtrl_SD_RX_EQUAL_ENABLE_RMASK 0x1 +#define QIB_7220_IBCDDRCtrl_IB_LANE_REV_SUPPORTED_LSB 0x8 +#define QIB_7220_IBCDDRCtrl_IB_LANE_REV_SUPPORTED_RMASK 0x1 +#define QIB_7220_IBCDDRCtrl_IB_POLARITY_REV_SUPP_LSB 0x7 +#define QIB_7220_IBCDDRCtrl_IB_POLARITY_REV_SUPP_RMASK 0x1 +#define QIB_7220_IBCDDRCtrl_IB_NUM_CHANNELS_LSB 0x5 +#define QIB_7220_IBCDDRCtrl_IB_NUM_CHANNELS_RMASK 0x3 +#define QIB_7220_IBCDDRCtrl_SD_SPEED_QDR_LSB 0x4 +#define QIB_7220_IBCDDRCtrl_SD_SPEED_QDR_RMASK 0x1 +#define QIB_7220_IBCDDRCtrl_SD_SPEED_DDR_LSB 0x3 +#define QIB_7220_IBCDDRCtrl_SD_SPEED_DDR_RMASK 0x1 +#define QIB_7220_IBCDDRCtrl_SD_SPEED_SDR_LSB 0x2 +#define QIB_7220_IBCDDRCtrl_SD_SPEED_SDR_RMASK 0x1 +#define QIB_7220_IBCDDRCtrl_SD_SPEED_LSB 0x1 +#define QIB_7220_IBCDDRCtrl_SD_SPEED_RMASK 0x1 +#define QIB_7220_IBCDDRCtrl_IB_ENHANCED_MODE_LSB 0x0 +#define QIB_7220_IBCDDRCtrl_IB_ENHANCED_MODE_RMASK 0x1 + +#define QIB_7220_HRTBT_GUID_OFFS 0x188 + +#define QIB_7220_IBCDDRCtrl2_OFFS 0x1A0 +#define QIB_7220_IBCDDRCtrl2_IB_BACK_PORCH_LSB 0x5 +#define QIB_7220_IBCDDRCtrl2_IB_BACK_PORCH_RMASK 0x1F +#define QIB_7220_IBCDDRCtrl2_IB_FRONT_PORCH_LSB 0x0 +#define QIB_7220_IBCDDRCtrl2_IB_FRONT_PORCH_RMASK 0x1F + +#define QIB_7220_IBCDDRStatus_OFFS 0x1A8 +#define QIB_7220_IBCDDRStatus_heartbeat_timed_out_LSB 0x24 +#define QIB_7220_IBCDDRStatus_heartbeat_timed_out_RMASK 0x1 +#define QIB_7220_IBCDDRStatus_heartbeat_crosstalk_LSB 0x20 +#define QIB_7220_IBCDDRStatus_heartbeat_crosstalk_RMASK 0xF +#define QIB_7220_IBCDDRStatus_RxEqLocalDevice_LSB 0x1E +#define QIB_7220_IBCDDRStatus_RxEqLocalDevice_RMASK 0x3 +#define QIB_7220_IBCDDRStatus_ReqDDSLocalFromRmt_LSB 0x1A +#define QIB_7220_IBCDDRStatus_ReqDDSLocalFromRmt_RMASK 0xF +#define QIB_7220_IBCDDRStatus_LinkRoundTripLatency_LSB 0x0 +#define QIB_7220_IBCDDRStatus_LinkRoundTripLatency_RMASK 0x3FFFFFF + +#define QIB_7220_JIntReload_OFFS 0x1B0 +#define QIB_7220_JIntReload_J_limit_reload_LSB 0x10 +#define QIB_7220_JIntReload_J_limit_reload_RMASK 0xFFFF +#define QIB_7220_JIntReload_J_reload_LSB 0x0 +#define QIB_7220_JIntReload_J_reload_RMASK 0xFFFF + +#define QIB_7220_IBNCModeCtrl_OFFS 0x1B8 +#define QIB_7220_IBNCModeCtrl_Reserved_LSB 0x1A +#define QIB_7220_IBNCModeCtrl_Reserved_RMASK 0x3FFFFFFFFF +#define QIB_7220_IBNCModeCtrl_TSMCode_TS2_LSB 0x11 +#define QIB_7220_IBNCModeCtrl_TSMCode_TS2_RMASK 0x1FF +#define QIB_7220_IBNCModeCtrl_TSMCode_TS1_LSB 0x8 +#define QIB_7220_IBNCModeCtrl_TSMCode_TS1_RMASK 0x1FF +#define QIB_7220_IBNCModeCtrl_Reserved1_LSB 0x3 +#define QIB_7220_IBNCModeCtrl_Reserved1_RMASK 0x1F +#define QIB_7220_IBNCModeCtrl_TSMEnable_ignore_TSM_on_rx_LSB 0x2 +#define QIB_7220_IBNCModeCtrl_TSMEnable_ignore_TSM_on_rx_RMASK 0x1 +#define QIB_7220_IBNCModeCtrl_TSMEnable_send_TS2_LSB 0x1 +#define QIB_7220_IBNCModeCtrl_TSMEnable_send_TS2_RMASK 0x1 +#define QIB_7220_IBNCModeCtrl_TSMEnable_send_TS1_LSB 0x0 +#define QIB_7220_IBNCModeCtrl_TSMEnable_send_TS1_RMASK 0x1 + +#define QIB_7220_SendCtrl_OFFS 0x1C0 +#define QIB_7220_SendCtrl_Disarm_LSB 0x1F +#define QIB_7220_SendCtrl_Disarm_RMASK 0x1 +#define QIB_7220_SendCtrl_Reserved_LSB 0x1D +#define QIB_7220_SendCtrl_Reserved_RMASK 0x3 +#define QIB_7220_SendCtrl_AvailUpdThld_LSB 0x18 +#define QIB_7220_SendCtrl_AvailUpdThld_RMASK 0x1F +#define QIB_7220_SendCtrl_DisarmPIOBuf_LSB 0x10 +#define QIB_7220_SendCtrl_DisarmPIOBuf_RMASK 0xFF +#define QIB_7220_SendCtrl_Reserved1_LSB 0xD +#define QIB_7220_SendCtrl_Reserved1_RMASK 0x7 +#define QIB_7220_SendCtrl_SDmaHalt_LSB 0xC +#define QIB_7220_SendCtrl_SDmaHalt_RMASK 0x1 +#define QIB_7220_SendCtrl_SDmaEnable_LSB 0xB +#define QIB_7220_SendCtrl_SDmaEnable_RMASK 0x1 +#define QIB_7220_SendCtrl_SDmaSingleDescriptor_LSB 0xA +#define QIB_7220_SendCtrl_SDmaSingleDescriptor_RMASK 0x1 +#define QIB_7220_SendCtrl_SDmaIntEnable_LSB 0x9 +#define QIB_7220_SendCtrl_SDmaIntEnable_RMASK 0x1 +#define QIB_7220_SendCtrl_Reserved2_LSB 0x5 +#define QIB_7220_SendCtrl_Reserved2_RMASK 0xF +#define QIB_7220_SendCtrl_SSpecialTriggerEn_LSB 0x4 +#define QIB_7220_SendCtrl_SSpecialTriggerEn_RMASK 0x1 +#define QIB_7220_SendCtrl_SPioEnable_LSB 0x3 +#define QIB_7220_SendCtrl_SPioEnable_RMASK 0x1 +#define QIB_7220_SendCtrl_SendBufAvailUpd_LSB 0x2 +#define QIB_7220_SendCtrl_SendBufAvailUpd_RMASK 0x1 +#define QIB_7220_SendCtrl_SendIntBufAvail_LSB 0x1 +#define QIB_7220_SendCtrl_SendIntBufAvail_RMASK 0x1 +#define QIB_7220_SendCtrl_Abort_LSB 0x0 +#define QIB_7220_SendCtrl_Abort_RMASK 0x1 + +#define QIB_7220_SendBufBase_OFFS 0x1C8 +#define QIB_7220_SendBufBase_Reserved_LSB 0x35 +#define QIB_7220_SendBufBase_Reserved_RMASK 0x7FF +#define QIB_7220_SendBufBase_BaseAddr_LargePIO_LSB 0x20 +#define QIB_7220_SendBufBase_BaseAddr_LargePIO_RMASK 0x1FFFFF +#define QIB_7220_SendBufBase_Reserved1_LSB 0x15 +#define QIB_7220_SendBufBase_Reserved1_RMASK 0x7FF +#define QIB_7220_SendBufBase_BaseAddr_SmallPIO_LSB 0x0 +#define QIB_7220_SendBufBase_BaseAddr_SmallPIO_RMASK 0x1FFFFF + +#define QIB_7220_SendBufSize_OFFS 0x1D0 +#define QIB_7220_SendBufSize_Reserved_LSB 0x2D +#define QIB_7220_SendBufSize_Reserved_RMASK 0xFFFFF +#define QIB_7220_SendBufSize_Size_LargePIO_LSB 0x20 +#define QIB_7220_SendBufSize_Size_LargePIO_RMASK 0x1FFF +#define QIB_7220_SendBufSize_Reserved1_LSB 0xC +#define QIB_7220_SendBufSize_Reserved1_RMASK 0xFFFFF +#define QIB_7220_SendBufSize_Size_SmallPIO_LSB 0x0 +#define QIB_7220_SendBufSize_Size_SmallPIO_RMASK 0xFFF + +#define QIB_7220_SendBufCnt_OFFS 0x1D8 +#define QIB_7220_SendBufCnt_Reserved_LSB 0x24 +#define QIB_7220_SendBufCnt_Reserved_RMASK 0xFFFFFFF +#define QIB_7220_SendBufCnt_Num_LargeBuffers_LSB 0x20 +#define QIB_7220_SendBufCnt_Num_LargeBuffers_RMASK 0xF +#define QIB_7220_SendBufCnt_Reserved1_LSB 0x9 +#define QIB_7220_SendBufCnt_Reserved1_RMASK 0x7FFFFF +#define QIB_7220_SendBufCnt_Num_SmallBuffers_LSB 0x0 +#define QIB_7220_SendBufCnt_Num_SmallBuffers_RMASK 0x1FF + +#define QIB_7220_SendBufAvailAddr_OFFS 0x1E0 +#define QIB_7220_SendBufAvailAddr_SendBufAvailAddr_LSB 0x6 +#define QIB_7220_SendBufAvailAddr_SendBufAvailAddr_RMASK 0x3FFFFFFFF +#define QIB_7220_SendBufAvailAddr_Reserved_LSB 0x0 +#define QIB_7220_SendBufAvailAddr_Reserved_RMASK 0x3F + +#define QIB_7220_TxIntMemBase_OFFS 0x1E8 + +#define QIB_7220_TxIntMemSize_OFFS 0x1F0 + +#define QIB_7220_SendDmaBase_OFFS 0x1F8 +#define QIB_7220_SendDmaBase_Reserved_LSB 0x30 +#define QIB_7220_SendDmaBase_Reserved_RMASK 0xFFFF +#define QIB_7220_SendDmaBase_SendDmaBase_LSB 0x0 +#define QIB_7220_SendDmaBase_SendDmaBase_RMASK 0xFFFFFFFFFFFF + +#define QIB_7220_SendDmaLenGen_OFFS 0x200 +#define QIB_7220_SendDmaLenGen_Reserved_LSB 0x13 +#define QIB_7220_SendDmaLenGen_Reserved_RMASK 0x1FFFFFFFFFFF +#define QIB_7220_SendDmaLenGen_Generation_LSB 0x10 +#define QIB_7220_SendDmaLenGen_Generation_MSB 0x12 +#define QIB_7220_SendDmaLenGen_Generation_RMASK 0x7 +#define QIB_7220_SendDmaLenGen_Length_LSB 0x0 +#define QIB_7220_SendDmaLenGen_Length_RMASK 0xFFFF + +#define QIB_7220_SendDmaTail_OFFS 0x208 +#define QIB_7220_SendDmaTail_Reserved_LSB 0x10 +#define QIB_7220_SendDmaTail_Reserved_RMASK 0xFFFFFFFFFFFF +#define QIB_7220_SendDmaTail_SendDmaTail_LSB 0x0 +#define QIB_7220_SendDmaTail_SendDmaTail_RMASK 0xFFFF + +#define QIB_7220_SendDmaHead_OFFS 0x210 +#define QIB_7220_SendDmaHead_Reserved_LSB 0x30 +#define QIB_7220_SendDmaHead_Reserved_RMASK 0xFFFF +#define QIB_7220_SendDmaHead_InternalSendDmaHead_LSB 0x20 +#define QIB_7220_SendDmaHead_InternalSendDmaHead_RMASK 0xFFFF +#define QIB_7220_SendDmaHead_Reserved1_LSB 0x10 +#define QIB_7220_SendDmaHead_Reserved1_RMASK 0xFFFF +#define QIB_7220_SendDmaHead_SendDmaHead_LSB 0x0 +#define QIB_7220_SendDmaHead_SendDmaHead_RMASK 0xFFFF + +#define QIB_7220_SendDmaHeadAddr_OFFS 0x218 +#define QIB_7220_SendDmaHeadAddr_Reserved_LSB 0x30 +#define QIB_7220_SendDmaHeadAddr_Reserved_RMASK 0xFFFF +#define QIB_7220_SendDmaHeadAddr_SendDmaHeadAddr_LSB 0x0 +#define QIB_7220_SendDmaHeadAddr_SendDmaHeadAddr_RMASK 0xFFFFFFFFFFFF + +#define QIB_7220_SendDmaBufMask0_OFFS 0x220 +#define QIB_7220_SendDmaBufMask0_BufMask_63_0_LSB 0x0 +#define QIB_7220_SendDmaBufMask0_BufMask_63_0_RMASK 0x0 + +#define QIB_7220_SendDmaStatus_OFFS 0x238 +#define QIB_7220_SendDmaStatus_ScoreBoardDrainInProg_LSB 0x3F +#define QIB_7220_SendDmaStatus_ScoreBoardDrainInProg_RMASK 0x1 +#define QIB_7220_SendDmaStatus_AbortInProg_LSB 0x3E +#define QIB_7220_SendDmaStatus_AbortInProg_RMASK 0x1 +#define QIB_7220_SendDmaStatus_InternalSDmaEnable_LSB 0x3D +#define QIB_7220_SendDmaStatus_InternalSDmaEnable_RMASK 0x1 +#define QIB_7220_SendDmaStatus_ScbDescIndex_13_0_LSB 0x2F +#define QIB_7220_SendDmaStatus_ScbDescIndex_13_0_RMASK 0x3FFF +#define QIB_7220_SendDmaStatus_RpyLowAddr_6_0_LSB 0x28 +#define QIB_7220_SendDmaStatus_RpyLowAddr_6_0_RMASK 0x7F +#define QIB_7220_SendDmaStatus_RpyTag_7_0_LSB 0x20 +#define QIB_7220_SendDmaStatus_RpyTag_7_0_RMASK 0xFF +#define QIB_7220_SendDmaStatus_ScbFull_LSB 0x1F +#define QIB_7220_SendDmaStatus_ScbFull_RMASK 0x1 +#define QIB_7220_SendDmaStatus_ScbEmpty_LSB 0x1E +#define QIB_7220_SendDmaStatus_ScbEmpty_RMASK 0x1 +#define QIB_7220_SendDmaStatus_ScbEntryValid_LSB 0x1D +#define QIB_7220_SendDmaStatus_ScbEntryValid_RMASK 0x1 +#define QIB_7220_SendDmaStatus_ScbFetchDescFlag_LSB 0x1C +#define QIB_7220_SendDmaStatus_ScbFetchDescFlag_RMASK 0x1 +#define QIB_7220_SendDmaStatus_SplFifoReadyToGo_LSB 0x1B +#define QIB_7220_SendDmaStatus_SplFifoReadyToGo_RMASK 0x1 +#define QIB_7220_SendDmaStatus_SplFifoDisarmed_LSB 0x1A +#define QIB_7220_SendDmaStatus_SplFifoDisarmed_RMASK 0x1 +#define QIB_7220_SendDmaStatus_SplFifoEmpty_LSB 0x19 +#define QIB_7220_SendDmaStatus_SplFifoEmpty_RMASK 0x1 +#define QIB_7220_SendDmaStatus_SplFifoFull_LSB 0x18 +#define QIB_7220_SendDmaStatus_SplFifoFull_RMASK 0x1 +#define QIB_7220_SendDmaStatus_SplFifoBufNum_LSB 0x10 +#define QIB_7220_SendDmaStatus_SplFifoBufNum_RMASK 0xFF +#define QIB_7220_SendDmaStatus_SplFifoDescIndex_LSB 0x0 +#define QIB_7220_SendDmaStatus_SplFifoDescIndex_RMASK 0xFFFF + +#define QIB_7220_SendBufErr0_OFFS 0x240 +#define QIB_7220_SendBufErr0_SendBufErr_63_0_LSB 0x0 +#define QIB_7220_SendBufErr0_SendBufErr_63_0_RMASK 0x0 + +#define QIB_7220_RcvHdrAddr0_OFFS 0x270 +#define QIB_7220_RcvHdrAddr0_RcvHdrAddr0_LSB 0x2 +#define QIB_7220_RcvHdrAddr0_RcvHdrAddr0_RMASK 0x3FFFFFFFFF +#define QIB_7220_RcvHdrAddr0_Reserved_LSB 0x0 +#define QIB_7220_RcvHdrAddr0_Reserved_RMASK 0x3 + +#define QIB_7220_RcvHdrTailAddr0_OFFS 0x300 +#define QIB_7220_RcvHdrTailAddr0_RcvHdrTailAddr0_LSB 0x2 +#define QIB_7220_RcvHdrTailAddr0_RcvHdrTailAddr0_RMASK 0x3FFFFFFFFF +#define QIB_7220_RcvHdrTailAddr0_Reserved_LSB 0x0 +#define QIB_7220_RcvHdrTailAddr0_Reserved_RMASK 0x3 + +#define QIB_7220_ibsd_epb_access_ctrl_OFFS 0x3C0 +#define QIB_7220_ibsd_epb_access_ctrl_sw_ib_epb_req_granted_LSB 0x8 +#define QIB_7220_ibsd_epb_access_ctrl_sw_ib_epb_req_granted_RMASK 0x1 +#define QIB_7220_ibsd_epb_access_ctrl_Reserved_LSB 0x1 +#define QIB_7220_ibsd_epb_access_ctrl_Reserved_RMASK 0x7F +#define QIB_7220_ibsd_epb_access_ctrl_sw_ib_epb_req_LSB 0x0 +#define QIB_7220_ibsd_epb_access_ctrl_sw_ib_epb_req_RMASK 0x1 + +#define QIB_7220_ibsd_epb_transaction_reg_OFFS 0x3C8 +#define QIB_7220_ibsd_epb_transaction_reg_ib_epb_rdy_LSB 0x1F +#define QIB_7220_ibsd_epb_transaction_reg_ib_epb_rdy_RMASK 0x1 +#define QIB_7220_ibsd_epb_transaction_reg_ib_epb_req_error_LSB 0x1E +#define QIB_7220_ibsd_epb_transaction_reg_ib_epb_req_error_RMASK 0x1 +#define QIB_7220_ibsd_epb_transaction_reg_Reserved_LSB 0x1D +#define QIB_7220_ibsd_epb_transaction_reg_Reserved_RMASK 0x1 +#define QIB_7220_ibsd_epb_transaction_reg_mem_data_parity_LSB 0x1C +#define QIB_7220_ibsd_epb_transaction_reg_mem_data_parity_RMASK 0x1 +#define QIB_7220_ibsd_epb_transaction_reg_Reserved1_LSB 0x1B +#define QIB_7220_ibsd_epb_transaction_reg_Reserved1_RMASK 0x1 +#define QIB_7220_ibsd_epb_transaction_reg_ib_epb_cs_LSB 0x19 +#define QIB_7220_ibsd_epb_transaction_reg_ib_epb_cs_RMASK 0x3 +#define QIB_7220_ibsd_epb_transaction_reg_ib_epb_read_write_LSB 0x18 +#define QIB_7220_ibsd_epb_transaction_reg_ib_epb_read_write_RMASK 0x1 +#define QIB_7220_ibsd_epb_transaction_reg_Reserved2_LSB 0x17 +#define QIB_7220_ibsd_epb_transaction_reg_Reserved2_RMASK 0x1 +#define QIB_7220_ibsd_epb_transaction_reg_ib_epb_address_LSB 0x8 +#define QIB_7220_ibsd_epb_transaction_reg_ib_epb_address_RMASK 0x7FFF +#define QIB_7220_ibsd_epb_transaction_reg_ib_epb_data_LSB 0x0 +#define QIB_7220_ibsd_epb_transaction_reg_ib_epb_data_RMASK 0xFF + +#define QIB_7220_XGXSCfg_OFFS 0x3D8 +#define QIB_7220_XGXSCfg_sel_link_down_for_fctrl_lane_sync_reset_LSB 0x3F +#define QIB_7220_XGXSCfg_sel_link_down_for_fctrl_lane_sync_reset_RMASK 0x1 +#define QIB_7220_XGXSCfg_Reserved_LSB 0x13 +#define QIB_7220_XGXSCfg_Reserved_RMASK 0xFFFFFFFFFFF +#define QIB_7220_XGXSCfg_link_sync_mask_LSB 0x9 +#define QIB_7220_XGXSCfg_link_sync_mask_RMASK 0x3FF +#define QIB_7220_XGXSCfg_Reserved1_LSB 0x3 +#define QIB_7220_XGXSCfg_Reserved1_RMASK 0x3F +#define QIB_7220_XGXSCfg_xcv_reset_LSB 0x2 +#define QIB_7220_XGXSCfg_xcv_reset_RMASK 0x1 +#define QIB_7220_XGXSCfg_Reserved2_LSB 0x1 +#define QIB_7220_XGXSCfg_Reserved2_RMASK 0x1 +#define QIB_7220_XGXSCfg_tx_rx_reset_LSB 0x0 +#define QIB_7220_XGXSCfg_tx_rx_reset_RMASK 0x1 + +#define QIB_7220_IBSerDesCtrl_OFFS 0x3E0 +#define QIB_7220_IBSerDesCtrl_Reserved_LSB 0x2D +#define QIB_7220_IBSerDesCtrl_Reserved_RMASK 0x7FFFF +#define QIB_7220_IBSerDesCtrl_INT_uC_LSB 0x2C +#define QIB_7220_IBSerDesCtrl_INT_uC_RMASK 0x1 +#define QIB_7220_IBSerDesCtrl_CKSEL_uC_LSB 0x2A +#define QIB_7220_IBSerDesCtrl_CKSEL_uC_RMASK 0x3 +#define QIB_7220_IBSerDesCtrl_PLLN_LSB 0x28 +#define QIB_7220_IBSerDesCtrl_PLLN_RMASK 0x3 +#define QIB_7220_IBSerDesCtrl_PLLM_LSB 0x25 +#define QIB_7220_IBSerDesCtrl_PLLM_RMASK 0x7 +#define QIB_7220_IBSerDesCtrl_TXOBPD_LSB 0x24 +#define QIB_7220_IBSerDesCtrl_TXOBPD_RMASK 0x1 +#define QIB_7220_IBSerDesCtrl_TWC_LSB 0x23 +#define QIB_7220_IBSerDesCtrl_TWC_RMASK 0x1 +#define QIB_7220_IBSerDesCtrl_RXIDLE_LSB 0x22 +#define QIB_7220_IBSerDesCtrl_RXIDLE_RMASK 0x1 +#define QIB_7220_IBSerDesCtrl_RXINV_LSB 0x21 +#define QIB_7220_IBSerDesCtrl_RXINV_RMASK 0x1 +#define QIB_7220_IBSerDesCtrl_TXINV_LSB 0x20 +#define QIB_7220_IBSerDesCtrl_TXINV_RMASK 0x1 +#define QIB_7220_IBSerDesCtrl_Reserved1_LSB 0x12 +#define QIB_7220_IBSerDesCtrl_Reserved1_RMASK 0x3FFF +#define QIB_7220_IBSerDesCtrl_NumSerDesRegsToWrForRXEQ_LSB 0xD +#define QIB_7220_IBSerDesCtrl_NumSerDesRegsToWrForRXEQ_RMASK 0x1F +#define QIB_7220_IBSerDesCtrl_NumSerDesRegsToWrForDDS_LSB 0x8 +#define QIB_7220_IBSerDesCtrl_NumSerDesRegsToWrForDDS_RMASK 0x1F +#define QIB_7220_IBSerDesCtrl_Reserved2_LSB 0x1 +#define QIB_7220_IBSerDesCtrl_Reserved2_RMASK 0x7F +#define QIB_7220_IBSerDesCtrl_ResetIB_uC_Core_LSB 0x0 +#define QIB_7220_IBSerDesCtrl_ResetIB_uC_Core_RMASK 0x1 + +#define QIB_7220_pciesd_epb_access_ctrl_OFFS 0x400 +#define QIB_7220_pciesd_epb_access_ctrl_sw_pcie_epb_req_granted_LSB 0x8 +#define QIB_7220_pciesd_epb_access_ctrl_sw_pcie_epb_req_granted_RMASK 0x1 +#define QIB_7220_pciesd_epb_access_ctrl_Reserved_LSB 0x3 +#define QIB_7220_pciesd_epb_access_ctrl_Reserved_RMASK 0x1F +#define QIB_7220_pciesd_epb_access_ctrl_sw_pcieepb_star_en_LSB 0x1 +#define QIB_7220_pciesd_epb_access_ctrl_sw_pcieepb_star_en_RMASK 0x3 +#define QIB_7220_pciesd_epb_access_ctrl_sw_pcie_epb_req_LSB 0x0 +#define QIB_7220_pciesd_epb_access_ctrl_sw_pcie_epb_req_RMASK 0x1 + +#define QIB_7220_pciesd_epb_transaction_reg_OFFS 0x408 +#define QIB_7220_pciesd_epb_transaction_reg_pcie_epb_rdy_LSB 0x1F +#define QIB_7220_pciesd_epb_transaction_reg_pcie_epb_rdy_RMASK 0x1 +#define QIB_7220_pciesd_epb_transaction_reg_pcie_epb_req_error_LSB 0x1E +#define QIB_7220_pciesd_epb_transaction_reg_pcie_epb_req_error_RMASK 0x1 +#define QIB_7220_pciesd_epb_transaction_reg_Reserved_LSB 0x1D +#define QIB_7220_pciesd_epb_transaction_reg_Reserved_RMASK 0x1 +#define QIB_7220_pciesd_epb_transaction_reg_mem_data_parity_LSB 0x1C +#define QIB_7220_pciesd_epb_transaction_reg_mem_data_parity_RMASK 0x1 +#define QIB_7220_pciesd_epb_transaction_reg_pcie_epb_cs_LSB 0x19 +#define QIB_7220_pciesd_epb_transaction_reg_pcie_epb_cs_RMASK 0x7 +#define QIB_7220_pciesd_epb_transaction_reg_pcie_epb_read_write_LSB 0x18 +#define QIB_7220_pciesd_epb_transaction_reg_pcie_epb_read_write_RMASK 0x1 +#define QIB_7220_pciesd_epb_transaction_reg_Reserved1_LSB 0x17 +#define QIB_7220_pciesd_epb_transaction_reg_Reserved1_RMASK 0x1 +#define QIB_7220_pciesd_epb_transaction_reg_pcie_epb_address_LSB 0x8 +#define QIB_7220_pciesd_epb_transaction_reg_pcie_epb_address_RMASK 0x7FFF +#define QIB_7220_pciesd_epb_transaction_reg_pcie_epb_data_LSB 0x0 +#define QIB_7220_pciesd_epb_transaction_reg_pcie_epb_data_RMASK 0xFF + +#define QIB_7220_SerDes_DDSRXEQ0_OFFS 0x500 +#define QIB_7220_SerDes_DDSRXEQ0_reg_addr_LSB 0x4 +#define QIB_7220_SerDes_DDSRXEQ0_reg_addr_RMASK 0x3F +#define QIB_7220_SerDes_DDSRXEQ0_element_num_LSB 0x0 +#define QIB_7220_SerDes_DDSRXEQ0_element_num_RMASK 0xF + +#define QIB_7220_LBIntCnt_OFFS 0x13000 + +#define QIB_7220_LBFlowStallCnt_OFFS 0x13008 + +#define QIB_7220_TxSDmaDescCnt_OFFS 0x13010 + +#define QIB_7220_TxUnsupVLErrCnt_OFFS 0x13018 + +#define QIB_7220_TxDataPktCnt_OFFS 0x13020 + +#define QIB_7220_TxFlowPktCnt_OFFS 0x13028 + +#define QIB_7220_TxDwordCnt_OFFS 0x13030 + +#define QIB_7220_TxLenErrCnt_OFFS 0x13038 + +#define QIB_7220_TxMaxMinLenErrCnt_OFFS 0x13040 + +#define QIB_7220_TxUnderrunCnt_OFFS 0x13048 + +#define QIB_7220_TxFlowStallCnt_OFFS 0x13050 + +#define QIB_7220_TxDroppedPktCnt_OFFS 0x13058 + +#define QIB_7220_RxDroppedPktCnt_OFFS 0x13060 + +#define QIB_7220_RxDataPktCnt_OFFS 0x13068 + +#define QIB_7220_RxFlowPktCnt_OFFS 0x13070 + +#define QIB_7220_RxDwordCnt_OFFS 0x13078 + +#define QIB_7220_RxLenErrCnt_OFFS 0x13080 + +#define QIB_7220_RxMaxMinLenErrCnt_OFFS 0x13088 + +#define QIB_7220_RxICRCErrCnt_OFFS 0x13090 + +#define QIB_7220_RxVCRCErrCnt_OFFS 0x13098 + +#define QIB_7220_RxFlowCtrlViolCnt_OFFS 0x130A0 + +#define QIB_7220_RxVersionErrCnt_OFFS 0x130A8 + +#define QIB_7220_RxLinkMalformCnt_OFFS 0x130B0 + +#define QIB_7220_RxEBPCnt_OFFS 0x130B8 + +#define QIB_7220_RxLPCRCErrCnt_OFFS 0x130C0 + +#define QIB_7220_RxBufOvflCnt_OFFS 0x130C8 + +#define QIB_7220_RxTIDFullErrCnt_OFFS 0x130D0 + +#define QIB_7220_RxTIDValidErrCnt_OFFS 0x130D8 + +#define QIB_7220_RxPKeyMismatchCnt_OFFS 0x130E0 + +#define QIB_7220_RxP0HdrEgrOvflCnt_OFFS 0x130E8 + +#define QIB_7220_IBStatusChangeCnt_OFFS 0x13170 + +#define QIB_7220_IBLinkErrRecoveryCnt_OFFS 0x13178 + +#define QIB_7220_IBLinkDownedCnt_OFFS 0x13180 + +#define QIB_7220_IBSymbolErrCnt_OFFS 0x13188 + +#define QIB_7220_RxVL15DroppedPktCnt_OFFS 0x13190 + +#define QIB_7220_RxOtherLocalPhyErrCnt_OFFS 0x13198 + +#define QIB_7220_PcieRetryBufDiagQwordCnt_OFFS 0x131A0 + +#define QIB_7220_ExcessBufferOvflCnt_OFFS 0x131A8 + +#define QIB_7220_LocalLinkIntegrityErrCnt_OFFS 0x131B0 + +#define QIB_7220_RxVlErrCnt_OFFS 0x131B8 + +#define QIB_7220_RxDlidFltrCnt_OFFS 0x131C0 + +#define QIB_7220_CNT_0131C8_OFFS 0x131C8 + +#define QIB_7220_PSStat_OFFS 0x13200 + +#define QIB_7220_PSStart_OFFS 0x13208 + +#define QIB_7220_PSInterval_OFFS 0x13210 + +#define QIB_7220_PSRcvDataCount_OFFS 0x13218 + +#define QIB_7220_PSRcvPktsCount_OFFS 0x13220 + +#define QIB_7220_PSXmitDataCount_OFFS 0x13228 + +#define QIB_7220_PSXmitPktsCount_OFFS 0x13230 + +#define QIB_7220_PSXmitWaitCount_OFFS 0x13238 + +#define QIB_7220_CNT_013240_OFFS 0x13240 + +#define QIB_7220_RcvEgrArray_OFFS 0x14000 + +#define QIB_7220_MEM_038000_OFFS 0x38000 + +#define QIB_7220_RcvTIDArray0_OFFS 0x53000 + +#define QIB_7220_PIOLaunchFIFO_OFFS 0x64000 + +#define QIB_7220_MEM_064480_OFFS 0x64480 + +#define QIB_7220_SendPIOpbcCache_OFFS 0x64800 + +#define QIB_7220_MEM_064C80_OFFS 0x64C80 + +#define QIB_7220_PreLaunchFIFO_OFFS 0x65000 + +#define QIB_7220_MEM_065080_OFFS 0x65080 + +#define QIB_7220_ScoreBoard_OFFS 0x65400 + +#define QIB_7220_MEM_065440_OFFS 0x65440 + +#define QIB_7220_DescriptorFIFO_OFFS 0x65800 + +#define QIB_7220_MEM_065880_OFFS 0x65880 + +#define QIB_7220_RcvBuf1_OFFS 0x72000 + +#define QIB_7220_MEM_074800_OFFS 0x74800 + +#define QIB_7220_RcvBuf2_OFFS 0x75000 + +#define QIB_7220_MEM_076400_OFFS 0x76400 + +#define QIB_7220_RcvFlags_OFFS 0x77000 + +#define QIB_7220_MEM_078400_OFFS 0x78400 + +#define QIB_7220_RcvLookupBuf1_OFFS 0x79000 + +#define QIB_7220_MEM_07A400_OFFS 0x7A400 + +#define QIB_7220_RcvDMADatBuf_OFFS 0x7B000 + +#define QIB_7220_RcvDMAHdrBuf_OFFS 0x7B800 + +#define QIB_7220_MiscRXEIntMem_OFFS 0x7C000 + +#define QIB_7220_MEM_07D400_OFFS 0x7D400 + +#define QIB_7220_PCIERcvBuf_OFFS 0x80000 + +#define QIB_7220_PCIERetryBuf_OFFS 0x84000 + +#define QIB_7220_PCIERcvBufRdToWrAddr_OFFS 0x88000 + +#define QIB_7220_PCIECplBuf_OFFS 0x90000 + +#define QIB_7220_IBSerDesMappTable_OFFS 0x94000 + +#define QIB_7220_MEM_095000_OFFS 0x95000 + +#define QIB_7220_SendBuf0_MA_OFFS 0x100000 + +#define QIB_7220_MEM_1A0000_OFFS 0x1A0000 diff --git a/drivers/infiniband/hw/qib/qib_7322_regs.h b/drivers/infiniband/hw/qib/qib_7322_regs.h new file mode 100644 index 000000000..32dc81ff8 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_7322_regs.h @@ -0,0 +1,3163 @@ +/* + * Copyright (c) 2008, 2009, 2010 QLogic Corporation. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +/* This file is mechanically generated from RTL. Any hand-edits will be lost! */ + +#define QIB_7322_Revision_OFFS 0x0 +#define QIB_7322_Revision_DEF 0x0000000002010601 +#define QIB_7322_Revision_R_Simulator_LSB 0x3F +#define QIB_7322_Revision_R_Simulator_MSB 0x3F +#define QIB_7322_Revision_R_Simulator_RMASK 0x1 +#define QIB_7322_Revision_R_Emulation_LSB 0x3E +#define QIB_7322_Revision_R_Emulation_MSB 0x3E +#define QIB_7322_Revision_R_Emulation_RMASK 0x1 +#define QIB_7322_Revision_R_Emulation_Revcode_LSB 0x28 +#define QIB_7322_Revision_R_Emulation_Revcode_MSB 0x3D +#define QIB_7322_Revision_R_Emulation_Revcode_RMASK 0x3FFFFF +#define QIB_7322_Revision_BoardID_LSB 0x20 +#define QIB_7322_Revision_BoardID_MSB 0x27 +#define QIB_7322_Revision_BoardID_RMASK 0xFF +#define QIB_7322_Revision_R_SW_LSB 0x18 +#define QIB_7322_Revision_R_SW_MSB 0x1F +#define QIB_7322_Revision_R_SW_RMASK 0xFF +#define QIB_7322_Revision_R_Arch_LSB 0x10 +#define QIB_7322_Revision_R_Arch_MSB 0x17 +#define QIB_7322_Revision_R_Arch_RMASK 0xFF +#define QIB_7322_Revision_R_ChipRevMajor_LSB 0x8 +#define QIB_7322_Revision_R_ChipRevMajor_MSB 0xF +#define QIB_7322_Revision_R_ChipRevMajor_RMASK 0xFF +#define QIB_7322_Revision_R_ChipRevMinor_LSB 0x0 +#define QIB_7322_Revision_R_ChipRevMinor_MSB 0x7 +#define QIB_7322_Revision_R_ChipRevMinor_RMASK 0xFF + +#define QIB_7322_Control_OFFS 0x8 +#define QIB_7322_Control_DEF 0x0000000000000000 +#define QIB_7322_Control_PCIECplQDiagEn_LSB 0x6 +#define QIB_7322_Control_PCIECplQDiagEn_MSB 0x6 +#define QIB_7322_Control_PCIECplQDiagEn_RMASK 0x1 +#define QIB_7322_Control_PCIEPostQDiagEn_LSB 0x5 +#define QIB_7322_Control_PCIEPostQDiagEn_MSB 0x5 +#define QIB_7322_Control_PCIEPostQDiagEn_RMASK 0x1 +#define QIB_7322_Control_SDmaDescFetchPriorityEn_LSB 0x4 +#define QIB_7322_Control_SDmaDescFetchPriorityEn_MSB 0x4 +#define QIB_7322_Control_SDmaDescFetchPriorityEn_RMASK 0x1 +#define QIB_7322_Control_PCIERetryBufDiagEn_LSB 0x3 +#define QIB_7322_Control_PCIERetryBufDiagEn_MSB 0x3 +#define QIB_7322_Control_PCIERetryBufDiagEn_RMASK 0x1 +#define QIB_7322_Control_FreezeMode_LSB 0x1 +#define QIB_7322_Control_FreezeMode_MSB 0x1 +#define QIB_7322_Control_FreezeMode_RMASK 0x1 +#define QIB_7322_Control_SyncReset_LSB 0x0 +#define QIB_7322_Control_SyncReset_MSB 0x0 +#define QIB_7322_Control_SyncReset_RMASK 0x1 + +#define QIB_7322_PageAlign_OFFS 0x10 +#define QIB_7322_PageAlign_DEF 0x0000000000001000 + +#define QIB_7322_ContextCnt_OFFS 0x18 +#define QIB_7322_ContextCnt_DEF 0x0000000000000012 + +#define QIB_7322_Scratch_OFFS 0x20 +#define QIB_7322_Scratch_DEF 0x0000000000000000 + +#define QIB_7322_CntrRegBase_OFFS 0x28 +#define QIB_7322_CntrRegBase_DEF 0x0000000000011000 + +#define QIB_7322_SendRegBase_OFFS 0x30 +#define QIB_7322_SendRegBase_DEF 0x0000000000003000 + +#define QIB_7322_UserRegBase_OFFS 0x38 +#define QIB_7322_UserRegBase_DEF 0x0000000000200000 + +#define QIB_7322_IntMask_OFFS 0x68 +#define QIB_7322_IntMask_DEF 0x0000000000000000 +#define QIB_7322_IntMask_SDmaIntMask_1_LSB 0x3F +#define QIB_7322_IntMask_SDmaIntMask_1_MSB 0x3F +#define QIB_7322_IntMask_SDmaIntMask_1_RMASK 0x1 +#define QIB_7322_IntMask_SDmaIntMask_0_LSB 0x3E +#define QIB_7322_IntMask_SDmaIntMask_0_MSB 0x3E +#define QIB_7322_IntMask_SDmaIntMask_0_RMASK 0x1 +#define QIB_7322_IntMask_SDmaProgressIntMask_1_LSB 0x3D +#define QIB_7322_IntMask_SDmaProgressIntMask_1_MSB 0x3D +#define QIB_7322_IntMask_SDmaProgressIntMask_1_RMASK 0x1 +#define QIB_7322_IntMask_SDmaProgressIntMask_0_LSB 0x3C +#define QIB_7322_IntMask_SDmaProgressIntMask_0_MSB 0x3C +#define QIB_7322_IntMask_SDmaProgressIntMask_0_RMASK 0x1 +#define QIB_7322_IntMask_SDmaIdleIntMask_1_LSB 0x3B +#define QIB_7322_IntMask_SDmaIdleIntMask_1_MSB 0x3B +#define QIB_7322_IntMask_SDmaIdleIntMask_1_RMASK 0x1 +#define QIB_7322_IntMask_SDmaIdleIntMask_0_LSB 0x3A +#define QIB_7322_IntMask_SDmaIdleIntMask_0_MSB 0x3A +#define QIB_7322_IntMask_SDmaIdleIntMask_0_RMASK 0x1 +#define QIB_7322_IntMask_SDmaCleanupDoneMask_1_LSB 0x39 +#define QIB_7322_IntMask_SDmaCleanupDoneMask_1_MSB 0x39 +#define QIB_7322_IntMask_SDmaCleanupDoneMask_1_RMASK 0x1 +#define QIB_7322_IntMask_SDmaCleanupDoneMask_0_LSB 0x38 +#define QIB_7322_IntMask_SDmaCleanupDoneMask_0_MSB 0x38 +#define QIB_7322_IntMask_SDmaCleanupDoneMask_0_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg17IntMask_LSB 0x31 +#define QIB_7322_IntMask_RcvUrg17IntMask_MSB 0x31 +#define QIB_7322_IntMask_RcvUrg17IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg16IntMask_LSB 0x30 +#define QIB_7322_IntMask_RcvUrg16IntMask_MSB 0x30 +#define QIB_7322_IntMask_RcvUrg16IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg15IntMask_LSB 0x2F +#define QIB_7322_IntMask_RcvUrg15IntMask_MSB 0x2F +#define QIB_7322_IntMask_RcvUrg15IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg14IntMask_LSB 0x2E +#define QIB_7322_IntMask_RcvUrg14IntMask_MSB 0x2E +#define QIB_7322_IntMask_RcvUrg14IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg13IntMask_LSB 0x2D +#define QIB_7322_IntMask_RcvUrg13IntMask_MSB 0x2D +#define QIB_7322_IntMask_RcvUrg13IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg12IntMask_LSB 0x2C +#define QIB_7322_IntMask_RcvUrg12IntMask_MSB 0x2C +#define QIB_7322_IntMask_RcvUrg12IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg11IntMask_LSB 0x2B +#define QIB_7322_IntMask_RcvUrg11IntMask_MSB 0x2B +#define QIB_7322_IntMask_RcvUrg11IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg10IntMask_LSB 0x2A +#define QIB_7322_IntMask_RcvUrg10IntMask_MSB 0x2A +#define QIB_7322_IntMask_RcvUrg10IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg9IntMask_LSB 0x29 +#define QIB_7322_IntMask_RcvUrg9IntMask_MSB 0x29 +#define QIB_7322_IntMask_RcvUrg9IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg8IntMask_LSB 0x28 +#define QIB_7322_IntMask_RcvUrg8IntMask_MSB 0x28 +#define QIB_7322_IntMask_RcvUrg8IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg7IntMask_LSB 0x27 +#define QIB_7322_IntMask_RcvUrg7IntMask_MSB 0x27 +#define QIB_7322_IntMask_RcvUrg7IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg6IntMask_LSB 0x26 +#define QIB_7322_IntMask_RcvUrg6IntMask_MSB 0x26 +#define QIB_7322_IntMask_RcvUrg6IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg5IntMask_LSB 0x25 +#define QIB_7322_IntMask_RcvUrg5IntMask_MSB 0x25 +#define QIB_7322_IntMask_RcvUrg5IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg4IntMask_LSB 0x24 +#define QIB_7322_IntMask_RcvUrg4IntMask_MSB 0x24 +#define QIB_7322_IntMask_RcvUrg4IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg3IntMask_LSB 0x23 +#define QIB_7322_IntMask_RcvUrg3IntMask_MSB 0x23 +#define QIB_7322_IntMask_RcvUrg3IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg2IntMask_LSB 0x22 +#define QIB_7322_IntMask_RcvUrg2IntMask_MSB 0x22 +#define QIB_7322_IntMask_RcvUrg2IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg1IntMask_LSB 0x21 +#define QIB_7322_IntMask_RcvUrg1IntMask_MSB 0x21 +#define QIB_7322_IntMask_RcvUrg1IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvUrg0IntMask_LSB 0x20 +#define QIB_7322_IntMask_RcvUrg0IntMask_MSB 0x20 +#define QIB_7322_IntMask_RcvUrg0IntMask_RMASK 0x1 +#define QIB_7322_IntMask_ErrIntMask_1_LSB 0x1F +#define QIB_7322_IntMask_ErrIntMask_1_MSB 0x1F +#define QIB_7322_IntMask_ErrIntMask_1_RMASK 0x1 +#define QIB_7322_IntMask_ErrIntMask_0_LSB 0x1E +#define QIB_7322_IntMask_ErrIntMask_0_MSB 0x1E +#define QIB_7322_IntMask_ErrIntMask_0_RMASK 0x1 +#define QIB_7322_IntMask_ErrIntMask_LSB 0x1D +#define QIB_7322_IntMask_ErrIntMask_MSB 0x1D +#define QIB_7322_IntMask_ErrIntMask_RMASK 0x1 +#define QIB_7322_IntMask_AssertGPIOIntMask_LSB 0x1C +#define QIB_7322_IntMask_AssertGPIOIntMask_MSB 0x1C +#define QIB_7322_IntMask_AssertGPIOIntMask_RMASK 0x1 +#define QIB_7322_IntMask_SendDoneIntMask_1_LSB 0x19 +#define QIB_7322_IntMask_SendDoneIntMask_1_MSB 0x19 +#define QIB_7322_IntMask_SendDoneIntMask_1_RMASK 0x1 +#define QIB_7322_IntMask_SendDoneIntMask_0_LSB 0x18 +#define QIB_7322_IntMask_SendDoneIntMask_0_MSB 0x18 +#define QIB_7322_IntMask_SendDoneIntMask_0_RMASK 0x1 +#define QIB_7322_IntMask_SendBufAvailIntMask_LSB 0x17 +#define QIB_7322_IntMask_SendBufAvailIntMask_MSB 0x17 +#define QIB_7322_IntMask_SendBufAvailIntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail17IntMask_LSB 0x11 +#define QIB_7322_IntMask_RcvAvail17IntMask_MSB 0x11 +#define QIB_7322_IntMask_RcvAvail17IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail16IntMask_LSB 0x10 +#define QIB_7322_IntMask_RcvAvail16IntMask_MSB 0x10 +#define QIB_7322_IntMask_RcvAvail16IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail15IntMask_LSB 0xF +#define QIB_7322_IntMask_RcvAvail15IntMask_MSB 0xF +#define QIB_7322_IntMask_RcvAvail15IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail14IntMask_LSB 0xE +#define QIB_7322_IntMask_RcvAvail14IntMask_MSB 0xE +#define QIB_7322_IntMask_RcvAvail14IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail13IntMask_LSB 0xD +#define QIB_7322_IntMask_RcvAvail13IntMask_MSB 0xD +#define QIB_7322_IntMask_RcvAvail13IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail12IntMask_LSB 0xC +#define QIB_7322_IntMask_RcvAvail12IntMask_MSB 0xC +#define QIB_7322_IntMask_RcvAvail12IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail11IntMask_LSB 0xB +#define QIB_7322_IntMask_RcvAvail11IntMask_MSB 0xB +#define QIB_7322_IntMask_RcvAvail11IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail10IntMask_LSB 0xA +#define QIB_7322_IntMask_RcvAvail10IntMask_MSB 0xA +#define QIB_7322_IntMask_RcvAvail10IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail9IntMask_LSB 0x9 +#define QIB_7322_IntMask_RcvAvail9IntMask_MSB 0x9 +#define QIB_7322_IntMask_RcvAvail9IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail8IntMask_LSB 0x8 +#define QIB_7322_IntMask_RcvAvail8IntMask_MSB 0x8 +#define QIB_7322_IntMask_RcvAvail8IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail7IntMask_LSB 0x7 +#define QIB_7322_IntMask_RcvAvail7IntMask_MSB 0x7 +#define QIB_7322_IntMask_RcvAvail7IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail6IntMask_LSB 0x6 +#define QIB_7322_IntMask_RcvAvail6IntMask_MSB 0x6 +#define QIB_7322_IntMask_RcvAvail6IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail5IntMask_LSB 0x5 +#define QIB_7322_IntMask_RcvAvail5IntMask_MSB 0x5 +#define QIB_7322_IntMask_RcvAvail5IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail4IntMask_LSB 0x4 +#define QIB_7322_IntMask_RcvAvail4IntMask_MSB 0x4 +#define QIB_7322_IntMask_RcvAvail4IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail3IntMask_LSB 0x3 +#define QIB_7322_IntMask_RcvAvail3IntMask_MSB 0x3 +#define QIB_7322_IntMask_RcvAvail3IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail2IntMask_LSB 0x2 +#define QIB_7322_IntMask_RcvAvail2IntMask_MSB 0x2 +#define QIB_7322_IntMask_RcvAvail2IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail1IntMask_LSB 0x1 +#define QIB_7322_IntMask_RcvAvail1IntMask_MSB 0x1 +#define QIB_7322_IntMask_RcvAvail1IntMask_RMASK 0x1 +#define QIB_7322_IntMask_RcvAvail0IntMask_LSB 0x0 +#define QIB_7322_IntMask_RcvAvail0IntMask_MSB 0x0 +#define QIB_7322_IntMask_RcvAvail0IntMask_RMASK 0x1 + +#define QIB_7322_IntStatus_OFFS 0x70 +#define QIB_7322_IntStatus_DEF 0x0000000000000000 +#define QIB_7322_IntStatus_SDmaInt_1_LSB 0x3F +#define QIB_7322_IntStatus_SDmaInt_1_MSB 0x3F +#define QIB_7322_IntStatus_SDmaInt_1_RMASK 0x1 +#define QIB_7322_IntStatus_SDmaInt_0_LSB 0x3E +#define QIB_7322_IntStatus_SDmaInt_0_MSB 0x3E +#define QIB_7322_IntStatus_SDmaInt_0_RMASK 0x1 +#define QIB_7322_IntStatus_SDmaProgressInt_1_LSB 0x3D +#define QIB_7322_IntStatus_SDmaProgressInt_1_MSB 0x3D +#define QIB_7322_IntStatus_SDmaProgressInt_1_RMASK 0x1 +#define QIB_7322_IntStatus_SDmaProgressInt_0_LSB 0x3C +#define QIB_7322_IntStatus_SDmaProgressInt_0_MSB 0x3C +#define QIB_7322_IntStatus_SDmaProgressInt_0_RMASK 0x1 +#define QIB_7322_IntStatus_SDmaIdleInt_1_LSB 0x3B +#define QIB_7322_IntStatus_SDmaIdleInt_1_MSB 0x3B +#define QIB_7322_IntStatus_SDmaIdleInt_1_RMASK 0x1 +#define QIB_7322_IntStatus_SDmaIdleInt_0_LSB 0x3A +#define QIB_7322_IntStatus_SDmaIdleInt_0_MSB 0x3A +#define QIB_7322_IntStatus_SDmaIdleInt_0_RMASK 0x1 +#define QIB_7322_IntStatus_SDmaCleanupDone_1_LSB 0x39 +#define QIB_7322_IntStatus_SDmaCleanupDone_1_MSB 0x39 +#define QIB_7322_IntStatus_SDmaCleanupDone_1_RMASK 0x1 +#define QIB_7322_IntStatus_SDmaCleanupDone_0_LSB 0x38 +#define QIB_7322_IntStatus_SDmaCleanupDone_0_MSB 0x38 +#define QIB_7322_IntStatus_SDmaCleanupDone_0_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg17_LSB 0x31 +#define QIB_7322_IntStatus_RcvUrg17_MSB 0x31 +#define QIB_7322_IntStatus_RcvUrg17_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg16_LSB 0x30 +#define QIB_7322_IntStatus_RcvUrg16_MSB 0x30 +#define QIB_7322_IntStatus_RcvUrg16_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg15_LSB 0x2F +#define QIB_7322_IntStatus_RcvUrg15_MSB 0x2F +#define QIB_7322_IntStatus_RcvUrg15_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg14_LSB 0x2E +#define QIB_7322_IntStatus_RcvUrg14_MSB 0x2E +#define QIB_7322_IntStatus_RcvUrg14_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg13_LSB 0x2D +#define QIB_7322_IntStatus_RcvUrg13_MSB 0x2D +#define QIB_7322_IntStatus_RcvUrg13_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg12_LSB 0x2C +#define QIB_7322_IntStatus_RcvUrg12_MSB 0x2C +#define QIB_7322_IntStatus_RcvUrg12_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg11_LSB 0x2B +#define QIB_7322_IntStatus_RcvUrg11_MSB 0x2B +#define QIB_7322_IntStatus_RcvUrg11_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg10_LSB 0x2A +#define QIB_7322_IntStatus_RcvUrg10_MSB 0x2A +#define QIB_7322_IntStatus_RcvUrg10_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg9_LSB 0x29 +#define QIB_7322_IntStatus_RcvUrg9_MSB 0x29 +#define QIB_7322_IntStatus_RcvUrg9_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg8_LSB 0x28 +#define QIB_7322_IntStatus_RcvUrg8_MSB 0x28 +#define QIB_7322_IntStatus_RcvUrg8_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg7_LSB 0x27 +#define QIB_7322_IntStatus_RcvUrg7_MSB 0x27 +#define QIB_7322_IntStatus_RcvUrg7_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg6_LSB 0x26 +#define QIB_7322_IntStatus_RcvUrg6_MSB 0x26 +#define QIB_7322_IntStatus_RcvUrg6_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg5_LSB 0x25 +#define QIB_7322_IntStatus_RcvUrg5_MSB 0x25 +#define QIB_7322_IntStatus_RcvUrg5_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg4_LSB 0x24 +#define QIB_7322_IntStatus_RcvUrg4_MSB 0x24 +#define QIB_7322_IntStatus_RcvUrg4_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg3_LSB 0x23 +#define QIB_7322_IntStatus_RcvUrg3_MSB 0x23 +#define QIB_7322_IntStatus_RcvUrg3_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg2_LSB 0x22 +#define QIB_7322_IntStatus_RcvUrg2_MSB 0x22 +#define QIB_7322_IntStatus_RcvUrg2_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg1_LSB 0x21 +#define QIB_7322_IntStatus_RcvUrg1_MSB 0x21 +#define QIB_7322_IntStatus_RcvUrg1_RMASK 0x1 +#define QIB_7322_IntStatus_RcvUrg0_LSB 0x20 +#define QIB_7322_IntStatus_RcvUrg0_MSB 0x20 +#define QIB_7322_IntStatus_RcvUrg0_RMASK 0x1 +#define QIB_7322_IntStatus_Err_1_LSB 0x1F +#define QIB_7322_IntStatus_Err_1_MSB 0x1F +#define QIB_7322_IntStatus_Err_1_RMASK 0x1 +#define QIB_7322_IntStatus_Err_0_LSB 0x1E +#define QIB_7322_IntStatus_Err_0_MSB 0x1E +#define QIB_7322_IntStatus_Err_0_RMASK 0x1 +#define QIB_7322_IntStatus_Err_LSB 0x1D +#define QIB_7322_IntStatus_Err_MSB 0x1D +#define QIB_7322_IntStatus_Err_RMASK 0x1 +#define QIB_7322_IntStatus_AssertGPIO_LSB 0x1C +#define QIB_7322_IntStatus_AssertGPIO_MSB 0x1C +#define QIB_7322_IntStatus_AssertGPIO_RMASK 0x1 +#define QIB_7322_IntStatus_SendDone_1_LSB 0x19 +#define QIB_7322_IntStatus_SendDone_1_MSB 0x19 +#define QIB_7322_IntStatus_SendDone_1_RMASK 0x1 +#define QIB_7322_IntStatus_SendDone_0_LSB 0x18 +#define QIB_7322_IntStatus_SendDone_0_MSB 0x18 +#define QIB_7322_IntStatus_SendDone_0_RMASK 0x1 +#define QIB_7322_IntStatus_SendBufAvail_LSB 0x17 +#define QIB_7322_IntStatus_SendBufAvail_MSB 0x17 +#define QIB_7322_IntStatus_SendBufAvail_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail17_LSB 0x11 +#define QIB_7322_IntStatus_RcvAvail17_MSB 0x11 +#define QIB_7322_IntStatus_RcvAvail17_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail16_LSB 0x10 +#define QIB_7322_IntStatus_RcvAvail16_MSB 0x10 +#define QIB_7322_IntStatus_RcvAvail16_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail15_LSB 0xF +#define QIB_7322_IntStatus_RcvAvail15_MSB 0xF +#define QIB_7322_IntStatus_RcvAvail15_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail14_LSB 0xE +#define QIB_7322_IntStatus_RcvAvail14_MSB 0xE +#define QIB_7322_IntStatus_RcvAvail14_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail13_LSB 0xD +#define QIB_7322_IntStatus_RcvAvail13_MSB 0xD +#define QIB_7322_IntStatus_RcvAvail13_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail12_LSB 0xC +#define QIB_7322_IntStatus_RcvAvail12_MSB 0xC +#define QIB_7322_IntStatus_RcvAvail12_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail11_LSB 0xB +#define QIB_7322_IntStatus_RcvAvail11_MSB 0xB +#define QIB_7322_IntStatus_RcvAvail11_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail10_LSB 0xA +#define QIB_7322_IntStatus_RcvAvail10_MSB 0xA +#define QIB_7322_IntStatus_RcvAvail10_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail9_LSB 0x9 +#define QIB_7322_IntStatus_RcvAvail9_MSB 0x9 +#define QIB_7322_IntStatus_RcvAvail9_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail8_LSB 0x8 +#define QIB_7322_IntStatus_RcvAvail8_MSB 0x8 +#define QIB_7322_IntStatus_RcvAvail8_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail7_LSB 0x7 +#define QIB_7322_IntStatus_RcvAvail7_MSB 0x7 +#define QIB_7322_IntStatus_RcvAvail7_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail6_LSB 0x6 +#define QIB_7322_IntStatus_RcvAvail6_MSB 0x6 +#define QIB_7322_IntStatus_RcvAvail6_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail5_LSB 0x5 +#define QIB_7322_IntStatus_RcvAvail5_MSB 0x5 +#define QIB_7322_IntStatus_RcvAvail5_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail4_LSB 0x4 +#define QIB_7322_IntStatus_RcvAvail4_MSB 0x4 +#define QIB_7322_IntStatus_RcvAvail4_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail3_LSB 0x3 +#define QIB_7322_IntStatus_RcvAvail3_MSB 0x3 +#define QIB_7322_IntStatus_RcvAvail3_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail2_LSB 0x2 +#define QIB_7322_IntStatus_RcvAvail2_MSB 0x2 +#define QIB_7322_IntStatus_RcvAvail2_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail1_LSB 0x1 +#define QIB_7322_IntStatus_RcvAvail1_MSB 0x1 +#define QIB_7322_IntStatus_RcvAvail1_RMASK 0x1 +#define QIB_7322_IntStatus_RcvAvail0_LSB 0x0 +#define QIB_7322_IntStatus_RcvAvail0_MSB 0x0 +#define QIB_7322_IntStatus_RcvAvail0_RMASK 0x1 + +#define QIB_7322_IntClear_OFFS 0x78 +#define QIB_7322_IntClear_DEF 0x0000000000000000 +#define QIB_7322_IntClear_SDmaIntClear_1_LSB 0x3F +#define QIB_7322_IntClear_SDmaIntClear_1_MSB 0x3F +#define QIB_7322_IntClear_SDmaIntClear_1_RMASK 0x1 +#define QIB_7322_IntClear_SDmaIntClear_0_LSB 0x3E +#define QIB_7322_IntClear_SDmaIntClear_0_MSB 0x3E +#define QIB_7322_IntClear_SDmaIntClear_0_RMASK 0x1 +#define QIB_7322_IntClear_SDmaProgressIntClear_1_LSB 0x3D +#define QIB_7322_IntClear_SDmaProgressIntClear_1_MSB 0x3D +#define QIB_7322_IntClear_SDmaProgressIntClear_1_RMASK 0x1 +#define QIB_7322_IntClear_SDmaProgressIntClear_0_LSB 0x3C +#define QIB_7322_IntClear_SDmaProgressIntClear_0_MSB 0x3C +#define QIB_7322_IntClear_SDmaProgressIntClear_0_RMASK 0x1 +#define QIB_7322_IntClear_SDmaIdleIntClear_1_LSB 0x3B +#define QIB_7322_IntClear_SDmaIdleIntClear_1_MSB 0x3B +#define QIB_7322_IntClear_SDmaIdleIntClear_1_RMASK 0x1 +#define QIB_7322_IntClear_SDmaIdleIntClear_0_LSB 0x3A +#define QIB_7322_IntClear_SDmaIdleIntClear_0_MSB 0x3A +#define QIB_7322_IntClear_SDmaIdleIntClear_0_RMASK 0x1 +#define QIB_7322_IntClear_SDmaCleanupDoneClear_1_LSB 0x39 +#define QIB_7322_IntClear_SDmaCleanupDoneClear_1_MSB 0x39 +#define QIB_7322_IntClear_SDmaCleanupDoneClear_1_RMASK 0x1 +#define QIB_7322_IntClear_SDmaCleanupDoneClear_0_LSB 0x38 +#define QIB_7322_IntClear_SDmaCleanupDoneClear_0_MSB 0x38 +#define QIB_7322_IntClear_SDmaCleanupDoneClear_0_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg17IntClear_LSB 0x31 +#define QIB_7322_IntClear_RcvUrg17IntClear_MSB 0x31 +#define QIB_7322_IntClear_RcvUrg17IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg16IntClear_LSB 0x30 +#define QIB_7322_IntClear_RcvUrg16IntClear_MSB 0x30 +#define QIB_7322_IntClear_RcvUrg16IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg15IntClear_LSB 0x2F +#define QIB_7322_IntClear_RcvUrg15IntClear_MSB 0x2F +#define QIB_7322_IntClear_RcvUrg15IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg14IntClear_LSB 0x2E +#define QIB_7322_IntClear_RcvUrg14IntClear_MSB 0x2E +#define QIB_7322_IntClear_RcvUrg14IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg13IntClear_LSB 0x2D +#define QIB_7322_IntClear_RcvUrg13IntClear_MSB 0x2D +#define QIB_7322_IntClear_RcvUrg13IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg12IntClear_LSB 0x2C +#define QIB_7322_IntClear_RcvUrg12IntClear_MSB 0x2C +#define QIB_7322_IntClear_RcvUrg12IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg11IntClear_LSB 0x2B +#define QIB_7322_IntClear_RcvUrg11IntClear_MSB 0x2B +#define QIB_7322_IntClear_RcvUrg11IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg10IntClear_LSB 0x2A +#define QIB_7322_IntClear_RcvUrg10IntClear_MSB 0x2A +#define QIB_7322_IntClear_RcvUrg10IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg9IntClear_LSB 0x29 +#define QIB_7322_IntClear_RcvUrg9IntClear_MSB 0x29 +#define QIB_7322_IntClear_RcvUrg9IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg8IntClear_LSB 0x28 +#define QIB_7322_IntClear_RcvUrg8IntClear_MSB 0x28 +#define QIB_7322_IntClear_RcvUrg8IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg7IntClear_LSB 0x27 +#define QIB_7322_IntClear_RcvUrg7IntClear_MSB 0x27 +#define QIB_7322_IntClear_RcvUrg7IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg6IntClear_LSB 0x26 +#define QIB_7322_IntClear_RcvUrg6IntClear_MSB 0x26 +#define QIB_7322_IntClear_RcvUrg6IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg5IntClear_LSB 0x25 +#define QIB_7322_IntClear_RcvUrg5IntClear_MSB 0x25 +#define QIB_7322_IntClear_RcvUrg5IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg4IntClear_LSB 0x24 +#define QIB_7322_IntClear_RcvUrg4IntClear_MSB 0x24 +#define QIB_7322_IntClear_RcvUrg4IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg3IntClear_LSB 0x23 +#define QIB_7322_IntClear_RcvUrg3IntClear_MSB 0x23 +#define QIB_7322_IntClear_RcvUrg3IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg2IntClear_LSB 0x22 +#define QIB_7322_IntClear_RcvUrg2IntClear_MSB 0x22 +#define QIB_7322_IntClear_RcvUrg2IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg1IntClear_LSB 0x21 +#define QIB_7322_IntClear_RcvUrg1IntClear_MSB 0x21 +#define QIB_7322_IntClear_RcvUrg1IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvUrg0IntClear_LSB 0x20 +#define QIB_7322_IntClear_RcvUrg0IntClear_MSB 0x20 +#define QIB_7322_IntClear_RcvUrg0IntClear_RMASK 0x1 +#define QIB_7322_IntClear_ErrIntClear_1_LSB 0x1F +#define QIB_7322_IntClear_ErrIntClear_1_MSB 0x1F +#define QIB_7322_IntClear_ErrIntClear_1_RMASK 0x1 +#define QIB_7322_IntClear_ErrIntClear_0_LSB 0x1E +#define QIB_7322_IntClear_ErrIntClear_0_MSB 0x1E +#define QIB_7322_IntClear_ErrIntClear_0_RMASK 0x1 +#define QIB_7322_IntClear_ErrIntClear_LSB 0x1D +#define QIB_7322_IntClear_ErrIntClear_MSB 0x1D +#define QIB_7322_IntClear_ErrIntClear_RMASK 0x1 +#define QIB_7322_IntClear_AssertGPIOIntClear_LSB 0x1C +#define QIB_7322_IntClear_AssertGPIOIntClear_MSB 0x1C +#define QIB_7322_IntClear_AssertGPIOIntClear_RMASK 0x1 +#define QIB_7322_IntClear_SendDoneIntClear_1_LSB 0x19 +#define QIB_7322_IntClear_SendDoneIntClear_1_MSB 0x19 +#define QIB_7322_IntClear_SendDoneIntClear_1_RMASK 0x1 +#define QIB_7322_IntClear_SendDoneIntClear_0_LSB 0x18 +#define QIB_7322_IntClear_SendDoneIntClear_0_MSB 0x18 +#define QIB_7322_IntClear_SendDoneIntClear_0_RMASK 0x1 +#define QIB_7322_IntClear_SendBufAvailIntClear_LSB 0x17 +#define QIB_7322_IntClear_SendBufAvailIntClear_MSB 0x17 +#define QIB_7322_IntClear_SendBufAvailIntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail17IntClear_LSB 0x11 +#define QIB_7322_IntClear_RcvAvail17IntClear_MSB 0x11 +#define QIB_7322_IntClear_RcvAvail17IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail16IntClear_LSB 0x10 +#define QIB_7322_IntClear_RcvAvail16IntClear_MSB 0x10 +#define QIB_7322_IntClear_RcvAvail16IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail15IntClear_LSB 0xF +#define QIB_7322_IntClear_RcvAvail15IntClear_MSB 0xF +#define QIB_7322_IntClear_RcvAvail15IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail14IntClear_LSB 0xE +#define QIB_7322_IntClear_RcvAvail14IntClear_MSB 0xE +#define QIB_7322_IntClear_RcvAvail14IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail13IntClear_LSB 0xD +#define QIB_7322_IntClear_RcvAvail13IntClear_MSB 0xD +#define QIB_7322_IntClear_RcvAvail13IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail12IntClear_LSB 0xC +#define QIB_7322_IntClear_RcvAvail12IntClear_MSB 0xC +#define QIB_7322_IntClear_RcvAvail12IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail11IntClear_LSB 0xB +#define QIB_7322_IntClear_RcvAvail11IntClear_MSB 0xB +#define QIB_7322_IntClear_RcvAvail11IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail10IntClear_LSB 0xA +#define QIB_7322_IntClear_RcvAvail10IntClear_MSB 0xA +#define QIB_7322_IntClear_RcvAvail10IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail9IntClear_LSB 0x9 +#define QIB_7322_IntClear_RcvAvail9IntClear_MSB 0x9 +#define QIB_7322_IntClear_RcvAvail9IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail8IntClear_LSB 0x8 +#define QIB_7322_IntClear_RcvAvail8IntClear_MSB 0x8 +#define QIB_7322_IntClear_RcvAvail8IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail7IntClear_LSB 0x7 +#define QIB_7322_IntClear_RcvAvail7IntClear_MSB 0x7 +#define QIB_7322_IntClear_RcvAvail7IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail6IntClear_LSB 0x6 +#define QIB_7322_IntClear_RcvAvail6IntClear_MSB 0x6 +#define QIB_7322_IntClear_RcvAvail6IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail5IntClear_LSB 0x5 +#define QIB_7322_IntClear_RcvAvail5IntClear_MSB 0x5 +#define QIB_7322_IntClear_RcvAvail5IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail4IntClear_LSB 0x4 +#define QIB_7322_IntClear_RcvAvail4IntClear_MSB 0x4 +#define QIB_7322_IntClear_RcvAvail4IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail3IntClear_LSB 0x3 +#define QIB_7322_IntClear_RcvAvail3IntClear_MSB 0x3 +#define QIB_7322_IntClear_RcvAvail3IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail2IntClear_LSB 0x2 +#define QIB_7322_IntClear_RcvAvail2IntClear_MSB 0x2 +#define QIB_7322_IntClear_RcvAvail2IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail1IntClear_LSB 0x1 +#define QIB_7322_IntClear_RcvAvail1IntClear_MSB 0x1 +#define QIB_7322_IntClear_RcvAvail1IntClear_RMASK 0x1 +#define QIB_7322_IntClear_RcvAvail0IntClear_LSB 0x0 +#define QIB_7322_IntClear_RcvAvail0IntClear_MSB 0x0 +#define QIB_7322_IntClear_RcvAvail0IntClear_RMASK 0x1 + +#define QIB_7322_ErrMask_OFFS 0x80 +#define QIB_7322_ErrMask_DEF 0x0000000000000000 +#define QIB_7322_ErrMask_ResetNegatedMask_LSB 0x3F +#define QIB_7322_ErrMask_ResetNegatedMask_MSB 0x3F +#define QIB_7322_ErrMask_ResetNegatedMask_RMASK 0x1 +#define QIB_7322_ErrMask_HardwareErrMask_LSB 0x3E +#define QIB_7322_ErrMask_HardwareErrMask_MSB 0x3E +#define QIB_7322_ErrMask_HardwareErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_InvalidAddrErrMask_LSB 0x3D +#define QIB_7322_ErrMask_InvalidAddrErrMask_MSB 0x3D +#define QIB_7322_ErrMask_InvalidAddrErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_SDmaVL15ErrMask_LSB 0x38 +#define QIB_7322_ErrMask_SDmaVL15ErrMask_MSB 0x38 +#define QIB_7322_ErrMask_SDmaVL15ErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_SBufVL15MisUseErrMask_LSB 0x37 +#define QIB_7322_ErrMask_SBufVL15MisUseErrMask_MSB 0x37 +#define QIB_7322_ErrMask_SBufVL15MisUseErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_InvalidEEPCmdMask_LSB 0x35 +#define QIB_7322_ErrMask_InvalidEEPCmdMask_MSB 0x35 +#define QIB_7322_ErrMask_InvalidEEPCmdMask_RMASK 0x1 +#define QIB_7322_ErrMask_RcvContextShareErrMask_LSB 0x34 +#define QIB_7322_ErrMask_RcvContextShareErrMask_MSB 0x34 +#define QIB_7322_ErrMask_RcvContextShareErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_SendVLMismatchErrMask_LSB 0x24 +#define QIB_7322_ErrMask_SendVLMismatchErrMask_MSB 0x24 +#define QIB_7322_ErrMask_SendVLMismatchErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_SendArmLaunchErrMask_LSB 0x23 +#define QIB_7322_ErrMask_SendArmLaunchErrMask_MSB 0x23 +#define QIB_7322_ErrMask_SendArmLaunchErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_SendSpecialTriggerErrMask_LSB 0x1B +#define QIB_7322_ErrMask_SendSpecialTriggerErrMask_MSB 0x1B +#define QIB_7322_ErrMask_SendSpecialTriggerErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_SDmaWrongPortErrMask_LSB 0x1A +#define QIB_7322_ErrMask_SDmaWrongPortErrMask_MSB 0x1A +#define QIB_7322_ErrMask_SDmaWrongPortErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_SDmaBufMaskDuplicateErrMask_LSB 0x19 +#define QIB_7322_ErrMask_SDmaBufMaskDuplicateErrMask_MSB 0x19 +#define QIB_7322_ErrMask_SDmaBufMaskDuplicateErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_RcvHdrFullErrMask_LSB 0xD +#define QIB_7322_ErrMask_RcvHdrFullErrMask_MSB 0xD +#define QIB_7322_ErrMask_RcvHdrFullErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_RcvEgrFullErrMask_LSB 0xC +#define QIB_7322_ErrMask_RcvEgrFullErrMask_MSB 0xC +#define QIB_7322_ErrMask_RcvEgrFullErrMask_RMASK 0x1 + +#define QIB_7322_ErrStatus_OFFS 0x88 +#define QIB_7322_ErrStatus_DEF 0x0000000000000000 +#define QIB_7322_ErrStatus_ResetNegated_LSB 0x3F +#define QIB_7322_ErrStatus_ResetNegated_MSB 0x3F +#define QIB_7322_ErrStatus_ResetNegated_RMASK 0x1 +#define QIB_7322_ErrStatus_HardwareErr_LSB 0x3E +#define QIB_7322_ErrStatus_HardwareErr_MSB 0x3E +#define QIB_7322_ErrStatus_HardwareErr_RMASK 0x1 +#define QIB_7322_ErrStatus_InvalidAddrErr_LSB 0x3D +#define QIB_7322_ErrStatus_InvalidAddrErr_MSB 0x3D +#define QIB_7322_ErrStatus_InvalidAddrErr_RMASK 0x1 +#define QIB_7322_ErrStatus_SDmaVL15Err_LSB 0x38 +#define QIB_7322_ErrStatus_SDmaVL15Err_MSB 0x38 +#define QIB_7322_ErrStatus_SDmaVL15Err_RMASK 0x1 +#define QIB_7322_ErrStatus_SBufVL15MisUseErr_LSB 0x37 +#define QIB_7322_ErrStatus_SBufVL15MisUseErr_MSB 0x37 +#define QIB_7322_ErrStatus_SBufVL15MisUseErr_RMASK 0x1 +#define QIB_7322_ErrStatus_InvalidEEPCmdErr_LSB 0x35 +#define QIB_7322_ErrStatus_InvalidEEPCmdErr_MSB 0x35 +#define QIB_7322_ErrStatus_InvalidEEPCmdErr_RMASK 0x1 +#define QIB_7322_ErrStatus_RcvContextShareErr_LSB 0x34 +#define QIB_7322_ErrStatus_RcvContextShareErr_MSB 0x34 +#define QIB_7322_ErrStatus_RcvContextShareErr_RMASK 0x1 +#define QIB_7322_ErrStatus_SendVLMismatchErr_LSB 0x24 +#define QIB_7322_ErrStatus_SendVLMismatchErr_MSB 0x24 +#define QIB_7322_ErrStatus_SendVLMismatchErr_RMASK 0x1 +#define QIB_7322_ErrStatus_SendArmLaunchErr_LSB 0x23 +#define QIB_7322_ErrStatus_SendArmLaunchErr_MSB 0x23 +#define QIB_7322_ErrStatus_SendArmLaunchErr_RMASK 0x1 +#define QIB_7322_ErrStatus_SendSpecialTriggerErr_LSB 0x1B +#define QIB_7322_ErrStatus_SendSpecialTriggerErr_MSB 0x1B +#define QIB_7322_ErrStatus_SendSpecialTriggerErr_RMASK 0x1 +#define QIB_7322_ErrStatus_SDmaWrongPortErr_LSB 0x1A +#define QIB_7322_ErrStatus_SDmaWrongPortErr_MSB 0x1A +#define QIB_7322_ErrStatus_SDmaWrongPortErr_RMASK 0x1 +#define QIB_7322_ErrStatus_SDmaBufMaskDuplicateErr_LSB 0x19 +#define QIB_7322_ErrStatus_SDmaBufMaskDuplicateErr_MSB 0x19 +#define QIB_7322_ErrStatus_SDmaBufMaskDuplicateErr_RMASK 0x1 +#define QIB_7322_ErrStatus_RcvHdrFullErr_LSB 0xD +#define QIB_7322_ErrStatus_RcvHdrFullErr_MSB 0xD +#define QIB_7322_ErrStatus_RcvHdrFullErr_RMASK 0x1 +#define QIB_7322_ErrStatus_RcvEgrFullErr_LSB 0xC +#define QIB_7322_ErrStatus_RcvEgrFullErr_MSB 0xC +#define QIB_7322_ErrStatus_RcvEgrFullErr_RMASK 0x1 + +#define QIB_7322_ErrClear_OFFS 0x90 +#define QIB_7322_ErrClear_DEF 0x0000000000000000 +#define QIB_7322_ErrClear_ResetNegatedClear_LSB 0x3F +#define QIB_7322_ErrClear_ResetNegatedClear_MSB 0x3F +#define QIB_7322_ErrClear_ResetNegatedClear_RMASK 0x1 +#define QIB_7322_ErrClear_HardwareErrClear_LSB 0x3E +#define QIB_7322_ErrClear_HardwareErrClear_MSB 0x3E +#define QIB_7322_ErrClear_HardwareErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_InvalidAddrErrClear_LSB 0x3D +#define QIB_7322_ErrClear_InvalidAddrErrClear_MSB 0x3D +#define QIB_7322_ErrClear_InvalidAddrErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_SDmaVL15ErrClear_LSB 0x38 +#define QIB_7322_ErrClear_SDmaVL15ErrClear_MSB 0x38 +#define QIB_7322_ErrClear_SDmaVL15ErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_SBufVL15MisUseErrClear_LSB 0x37 +#define QIB_7322_ErrClear_SBufVL15MisUseErrClear_MSB 0x37 +#define QIB_7322_ErrClear_SBufVL15MisUseErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_InvalidEEPCmdErrClear_LSB 0x35 +#define QIB_7322_ErrClear_InvalidEEPCmdErrClear_MSB 0x35 +#define QIB_7322_ErrClear_InvalidEEPCmdErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_RcvContextShareErrClear_LSB 0x34 +#define QIB_7322_ErrClear_RcvContextShareErrClear_MSB 0x34 +#define QIB_7322_ErrClear_RcvContextShareErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_SendVLMismatchErrMask_LSB 0x24 +#define QIB_7322_ErrClear_SendVLMismatchErrMask_MSB 0x24 +#define QIB_7322_ErrClear_SendVLMismatchErrMask_RMASK 0x1 +#define QIB_7322_ErrClear_SendArmLaunchErrClear_LSB 0x23 +#define QIB_7322_ErrClear_SendArmLaunchErrClear_MSB 0x23 +#define QIB_7322_ErrClear_SendArmLaunchErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_SendSpecialTriggerErrClear_LSB 0x1B +#define QIB_7322_ErrClear_SendSpecialTriggerErrClear_MSB 0x1B +#define QIB_7322_ErrClear_SendSpecialTriggerErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_SDmaWrongPortErrClear_LSB 0x1A +#define QIB_7322_ErrClear_SDmaWrongPortErrClear_MSB 0x1A +#define QIB_7322_ErrClear_SDmaWrongPortErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_SDmaBufMaskDuplicateErrClear_LSB 0x19 +#define QIB_7322_ErrClear_SDmaBufMaskDuplicateErrClear_MSB 0x19 +#define QIB_7322_ErrClear_SDmaBufMaskDuplicateErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_RcvHdrFullErrClear_LSB 0xD +#define QIB_7322_ErrClear_RcvHdrFullErrClear_MSB 0xD +#define QIB_7322_ErrClear_RcvHdrFullErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_RcvEgrFullErrClear_LSB 0xC +#define QIB_7322_ErrClear_RcvEgrFullErrClear_MSB 0xC +#define QIB_7322_ErrClear_RcvEgrFullErrClear_RMASK 0x1 + +#define QIB_7322_HwErrMask_OFFS 0x98 +#define QIB_7322_HwErrMask_DEF 0x0000000000000000 +#define QIB_7322_HwErrMask_IBSerdesPClkNotDetectMask_1_LSB 0x3F +#define QIB_7322_HwErrMask_IBSerdesPClkNotDetectMask_1_MSB 0x3F +#define QIB_7322_HwErrMask_IBSerdesPClkNotDetectMask_1_RMASK 0x1 +#define QIB_7322_HwErrMask_IBSerdesPClkNotDetectMask_0_LSB 0x3E +#define QIB_7322_HwErrMask_IBSerdesPClkNotDetectMask_0_MSB 0x3E +#define QIB_7322_HwErrMask_IBSerdesPClkNotDetectMask_0_RMASK 0x1 +#define QIB_7322_HwErrMask_PCIESerdesPClkNotDetectMask_LSB 0x37 +#define QIB_7322_HwErrMask_PCIESerdesPClkNotDetectMask_MSB 0x37 +#define QIB_7322_HwErrMask_PCIESerdesPClkNotDetectMask_RMASK 0x1 +#define QIB_7322_HwErrMask_PowerOnBISTFailedMask_LSB 0x36 +#define QIB_7322_HwErrMask_PowerOnBISTFailedMask_MSB 0x36 +#define QIB_7322_HwErrMask_PowerOnBISTFailedMask_RMASK 0x1 +#define QIB_7322_HwErrMask_TempsenseTholdReachedMask_LSB 0x35 +#define QIB_7322_HwErrMask_TempsenseTholdReachedMask_MSB 0x35 +#define QIB_7322_HwErrMask_TempsenseTholdReachedMask_RMASK 0x1 +#define QIB_7322_HwErrMask_MemoryErrMask_LSB 0x30 +#define QIB_7322_HwErrMask_MemoryErrMask_MSB 0x30 +#define QIB_7322_HwErrMask_MemoryErrMask_RMASK 0x1 +#define QIB_7322_HwErrMask_pcie_phy_txParityErr_LSB 0x22 +#define QIB_7322_HwErrMask_pcie_phy_txParityErr_MSB 0x22 +#define QIB_7322_HwErrMask_pcie_phy_txParityErr_RMASK 0x1 +#define QIB_7322_HwErrMask_PCIeBusParityErrMask_LSB 0x1F +#define QIB_7322_HwErrMask_PCIeBusParityErrMask_MSB 0x21 +#define QIB_7322_HwErrMask_PCIeBusParityErrMask_RMASK 0x7 +#define QIB_7322_HwErrMask_PcieCplTimeoutMask_LSB 0x1E +#define QIB_7322_HwErrMask_PcieCplTimeoutMask_MSB 0x1E +#define QIB_7322_HwErrMask_PcieCplTimeoutMask_RMASK 0x1 +#define QIB_7322_HwErrMask_PciePoisonedTLPMask_LSB 0x1D +#define QIB_7322_HwErrMask_PciePoisonedTLPMask_MSB 0x1D +#define QIB_7322_HwErrMask_PciePoisonedTLPMask_RMASK 0x1 +#define QIB_7322_HwErrMask_SDmaMemReadErrMask_1_LSB 0x1C +#define QIB_7322_HwErrMask_SDmaMemReadErrMask_1_MSB 0x1C +#define QIB_7322_HwErrMask_SDmaMemReadErrMask_1_RMASK 0x1 +#define QIB_7322_HwErrMask_SDmaMemReadErrMask_0_LSB 0x1B +#define QIB_7322_HwErrMask_SDmaMemReadErrMask_0_MSB 0x1B +#define QIB_7322_HwErrMask_SDmaMemReadErrMask_0_RMASK 0x1 +#define QIB_7322_HwErrMask_IBCBusFromSPCParityErrMask_1_LSB 0xF +#define QIB_7322_HwErrMask_IBCBusFromSPCParityErrMask_1_MSB 0xF +#define QIB_7322_HwErrMask_IBCBusFromSPCParityErrMask_1_RMASK 0x1 +#define QIB_7322_HwErrMask_IBCBusToSPCParityErrMask_1_LSB 0xE +#define QIB_7322_HwErrMask_IBCBusToSPCParityErrMask_1_MSB 0xE +#define QIB_7322_HwErrMask_IBCBusToSPCParityErrMask_1_RMASK 0x1 +#define QIB_7322_HwErrMask_IBCBusFromSPCParityErrMask_0_LSB 0xD +#define QIB_7322_HwErrMask_IBCBusFromSPCParityErrMask_0_MSB 0xD +#define QIB_7322_HwErrMask_IBCBusFromSPCParityErrMask_0_RMASK 0x1 +#define QIB_7322_HwErrMask_statusValidNoEopMask_LSB 0xC +#define QIB_7322_HwErrMask_statusValidNoEopMask_MSB 0xC +#define QIB_7322_HwErrMask_statusValidNoEopMask_RMASK 0x1 +#define QIB_7322_HwErrMask_LATriggeredMask_LSB 0xB +#define QIB_7322_HwErrMask_LATriggeredMask_MSB 0xB +#define QIB_7322_HwErrMask_LATriggeredMask_RMASK 0x1 + +#define QIB_7322_HwErrStatus_OFFS 0xA0 +#define QIB_7322_HwErrStatus_DEF 0x0000000000000000 +#define QIB_7322_HwErrStatus_IBSerdesPClkNotDetect_1_LSB 0x3F +#define QIB_7322_HwErrStatus_IBSerdesPClkNotDetect_1_MSB 0x3F +#define QIB_7322_HwErrStatus_IBSerdesPClkNotDetect_1_RMASK 0x1 +#define QIB_7322_HwErrStatus_IBSerdesPClkNotDetect_0_LSB 0x3E +#define QIB_7322_HwErrStatus_IBSerdesPClkNotDetect_0_MSB 0x3E +#define QIB_7322_HwErrStatus_IBSerdesPClkNotDetect_0_RMASK 0x1 +#define QIB_7322_HwErrStatus_PCIESerdesPClkNotDetect_LSB 0x37 +#define QIB_7322_HwErrStatus_PCIESerdesPClkNotDetect_MSB 0x37 +#define QIB_7322_HwErrStatus_PCIESerdesPClkNotDetect_RMASK 0x1 +#define QIB_7322_HwErrStatus_PowerOnBISTFailed_LSB 0x36 +#define QIB_7322_HwErrStatus_PowerOnBISTFailed_MSB 0x36 +#define QIB_7322_HwErrStatus_PowerOnBISTFailed_RMASK 0x1 +#define QIB_7322_HwErrStatus_TempsenseTholdReached_LSB 0x35 +#define QIB_7322_HwErrStatus_TempsenseTholdReached_MSB 0x35 +#define QIB_7322_HwErrStatus_TempsenseTholdReached_RMASK 0x1 +#define QIB_7322_HwErrStatus_MemoryErr_LSB 0x30 +#define QIB_7322_HwErrStatus_MemoryErr_MSB 0x30 +#define QIB_7322_HwErrStatus_MemoryErr_RMASK 0x1 +#define QIB_7322_HwErrStatus_pcie_phy_txParityErr_LSB 0x22 +#define QIB_7322_HwErrStatus_pcie_phy_txParityErr_MSB 0x22 +#define QIB_7322_HwErrStatus_pcie_phy_txParityErr_RMASK 0x1 +#define QIB_7322_HwErrStatus_PCIeBusParity_LSB 0x1F +#define QIB_7322_HwErrStatus_PCIeBusParity_MSB 0x21 +#define QIB_7322_HwErrStatus_PCIeBusParity_RMASK 0x7 +#define QIB_7322_HwErrStatus_PcieCplTimeout_LSB 0x1E +#define QIB_7322_HwErrStatus_PcieCplTimeout_MSB 0x1E +#define QIB_7322_HwErrStatus_PcieCplTimeout_RMASK 0x1 +#define QIB_7322_HwErrStatus_PciePoisonedTLP_LSB 0x1D +#define QIB_7322_HwErrStatus_PciePoisonedTLP_MSB 0x1D +#define QIB_7322_HwErrStatus_PciePoisonedTLP_RMASK 0x1 +#define QIB_7322_HwErrStatus_SDmaMemReadErr_1_LSB 0x1C +#define QIB_7322_HwErrStatus_SDmaMemReadErr_1_MSB 0x1C +#define QIB_7322_HwErrStatus_SDmaMemReadErr_1_RMASK 0x1 +#define QIB_7322_HwErrStatus_SDmaMemReadErr_0_LSB 0x1B +#define QIB_7322_HwErrStatus_SDmaMemReadErr_0_MSB 0x1B +#define QIB_7322_HwErrStatus_SDmaMemReadErr_0_RMASK 0x1 +#define QIB_7322_HwErrStatus_IBCBusFromSPCParityErr_1_LSB 0xF +#define QIB_7322_HwErrStatus_IBCBusFromSPCParityErr_1_MSB 0xF +#define QIB_7322_HwErrStatus_IBCBusFromSPCParityErr_1_RMASK 0x1 +#define QIB_7322_HwErrStatus_IBCBusToSPCParityErr_1_LSB 0xE +#define QIB_7322_HwErrStatus_IBCBusToSPCParityErr_1_MSB 0xE +#define QIB_7322_HwErrStatus_IBCBusToSPCParityErr_1_RMASK 0x1 +#define QIB_7322_HwErrStatus_IBCBusFromSPCParityErr_0_LSB 0xD +#define QIB_7322_HwErrStatus_IBCBusFromSPCParityErr_0_MSB 0xD +#define QIB_7322_HwErrStatus_IBCBusFromSPCParityErr_0_RMASK 0x1 +#define QIB_7322_HwErrStatus_statusValidNoEop_LSB 0xC +#define QIB_7322_HwErrStatus_statusValidNoEop_MSB 0xC +#define QIB_7322_HwErrStatus_statusValidNoEop_RMASK 0x1 +#define QIB_7322_HwErrStatus_LATriggered_LSB 0xB +#define QIB_7322_HwErrStatus_LATriggered_MSB 0xB +#define QIB_7322_HwErrStatus_LATriggered_RMASK 0x1 + +#define QIB_7322_HwErrClear_OFFS 0xA8 +#define QIB_7322_HwErrClear_DEF 0x0000000000000000 +#define QIB_7322_HwErrClear_IBSerdesPClkNotDetectClear_1_LSB 0x3F +#define QIB_7322_HwErrClear_IBSerdesPClkNotDetectClear_1_MSB 0x3F +#define QIB_7322_HwErrClear_IBSerdesPClkNotDetectClear_1_RMASK 0x1 +#define QIB_7322_HwErrClear_IBSerdesPClkNotDetectClear_0_LSB 0x3E +#define QIB_7322_HwErrClear_IBSerdesPClkNotDetectClear_0_MSB 0x3E +#define QIB_7322_HwErrClear_IBSerdesPClkNotDetectClear_0_RMASK 0x1 +#define QIB_7322_HwErrClear_PCIESerdesPClkNotDetectClear_LSB 0x37 +#define QIB_7322_HwErrClear_PCIESerdesPClkNotDetectClear_MSB 0x37 +#define QIB_7322_HwErrClear_PCIESerdesPClkNotDetectClear_RMASK 0x1 +#define QIB_7322_HwErrClear_PowerOnBISTFailedClear_LSB 0x36 +#define QIB_7322_HwErrClear_PowerOnBISTFailedClear_MSB 0x36 +#define QIB_7322_HwErrClear_PowerOnBISTFailedClear_RMASK 0x1 +#define QIB_7322_HwErrClear_TempsenseTholdReachedClear_LSB 0x35 +#define QIB_7322_HwErrClear_TempsenseTholdReachedClear_MSB 0x35 +#define QIB_7322_HwErrClear_TempsenseTholdReachedClear_RMASK 0x1 +#define QIB_7322_HwErrClear_MemoryErrClear_LSB 0x30 +#define QIB_7322_HwErrClear_MemoryErrClear_MSB 0x30 +#define QIB_7322_HwErrClear_MemoryErrClear_RMASK 0x1 +#define QIB_7322_HwErrClear_pcie_phy_txParityErr_LSB 0x22 +#define QIB_7322_HwErrClear_pcie_phy_txParityErr_MSB 0x22 +#define QIB_7322_HwErrClear_pcie_phy_txParityErr_RMASK 0x1 +#define QIB_7322_HwErrClear_PCIeBusParityClear_LSB 0x1F +#define QIB_7322_HwErrClear_PCIeBusParityClear_MSB 0x21 +#define QIB_7322_HwErrClear_PCIeBusParityClear_RMASK 0x7 +#define QIB_7322_HwErrClear_PcieCplTimeoutClear_LSB 0x1E +#define QIB_7322_HwErrClear_PcieCplTimeoutClear_MSB 0x1E +#define QIB_7322_HwErrClear_PcieCplTimeoutClear_RMASK 0x1 +#define QIB_7322_HwErrClear_PciePoisonedTLPClear_LSB 0x1D +#define QIB_7322_HwErrClear_PciePoisonedTLPClear_MSB 0x1D +#define QIB_7322_HwErrClear_PciePoisonedTLPClear_RMASK 0x1 +#define QIB_7322_HwErrClear_SDmaMemReadErrClear_1_LSB 0x1C +#define QIB_7322_HwErrClear_SDmaMemReadErrClear_1_MSB 0x1C +#define QIB_7322_HwErrClear_SDmaMemReadErrClear_1_RMASK 0x1 +#define QIB_7322_HwErrClear_SDmaMemReadErrClear_0_LSB 0x1B +#define QIB_7322_HwErrClear_SDmaMemReadErrClear_0_MSB 0x1B +#define QIB_7322_HwErrClear_SDmaMemReadErrClear_0_RMASK 0x1 +#define QIB_7322_HwErrClear_IBCBusFromSPCParityErrClear_1_LSB 0xF +#define QIB_7322_HwErrClear_IBCBusFromSPCParityErrClear_1_MSB 0xF +#define QIB_7322_HwErrClear_IBCBusFromSPCParityErrClear_1_RMASK 0x1 +#define QIB_7322_HwErrClear_IBCBusToSPCParityErrClear_1_LSB 0xE +#define QIB_7322_HwErrClear_IBCBusToSPCParityErrClear_1_MSB 0xE +#define QIB_7322_HwErrClear_IBCBusToSPCParityErrClear_1_RMASK 0x1 +#define QIB_7322_HwErrClear_IBCBusFromSPCParityErrClear_0_LSB 0xD +#define QIB_7322_HwErrClear_IBCBusFromSPCParityErrClear_0_MSB 0xD +#define QIB_7322_HwErrClear_IBCBusFromSPCParityErrClear_0_RMASK 0x1 +#define QIB_7322_HwErrClear_statusValidNoEopClear_LSB 0xC +#define QIB_7322_HwErrClear_statusValidNoEopClear_MSB 0xC +#define QIB_7322_HwErrClear_statusValidNoEopClear_RMASK 0x1 +#define QIB_7322_HwErrClear_LATriggeredClear_LSB 0xB +#define QIB_7322_HwErrClear_LATriggeredClear_MSB 0xB +#define QIB_7322_HwErrClear_LATriggeredClear_RMASK 0x1 + +#define QIB_7322_HwDiagCtrl_OFFS 0xB0 +#define QIB_7322_HwDiagCtrl_DEF 0x0000000000000000 +#define QIB_7322_HwDiagCtrl_Diagnostic_LSB 0x3F +#define QIB_7322_HwDiagCtrl_Diagnostic_MSB 0x3F +#define QIB_7322_HwDiagCtrl_Diagnostic_RMASK 0x1 +#define QIB_7322_HwDiagCtrl_CounterWrEnable_LSB 0x3D +#define QIB_7322_HwDiagCtrl_CounterWrEnable_MSB 0x3D +#define QIB_7322_HwDiagCtrl_CounterWrEnable_RMASK 0x1 +#define QIB_7322_HwDiagCtrl_CounterDisable_LSB 0x3C +#define QIB_7322_HwDiagCtrl_CounterDisable_MSB 0x3C +#define QIB_7322_HwDiagCtrl_CounterDisable_RMASK 0x1 +#define QIB_7322_HwDiagCtrl_forcePCIeBusParity_LSB 0x1F +#define QIB_7322_HwDiagCtrl_forcePCIeBusParity_MSB 0x22 +#define QIB_7322_HwDiagCtrl_forcePCIeBusParity_RMASK 0xF +#define QIB_7322_HwDiagCtrl_ForceIBCBusFromSPCParityErr_1_LSB 0xF +#define QIB_7322_HwDiagCtrl_ForceIBCBusFromSPCParityErr_1_MSB 0xF +#define QIB_7322_HwDiagCtrl_ForceIBCBusFromSPCParityErr_1_RMASK 0x1 +#define QIB_7322_HwDiagCtrl_ForceIBCBusToSPCParityErr_1_LSB 0xE +#define QIB_7322_HwDiagCtrl_ForceIBCBusToSPCParityErr_1_MSB 0xE +#define QIB_7322_HwDiagCtrl_ForceIBCBusToSPCParityErr_1_RMASK 0x1 +#define QIB_7322_HwDiagCtrl_ForceIBCBusFromSPCParityErr_0_LSB 0xD +#define QIB_7322_HwDiagCtrl_ForceIBCBusFromSPCParityErr_0_MSB 0xD +#define QIB_7322_HwDiagCtrl_ForceIBCBusFromSPCParityErr_0_RMASK 0x1 +#define QIB_7322_HwDiagCtrl_ForceIBCBusToSPCParityErr_0_LSB 0xC +#define QIB_7322_HwDiagCtrl_ForceIBCBusToSPCParityErr_0_MSB 0xC +#define QIB_7322_HwDiagCtrl_ForceIBCBusToSPCParityErr_0_RMASK 0x1 + +#define QIB_7322_EXTStatus_OFFS 0xC0 +#define QIB_7322_EXTStatus_DEF 0x000000000000X000 +#define QIB_7322_EXTStatus_GPIOIn_LSB 0x30 +#define QIB_7322_EXTStatus_GPIOIn_MSB 0x3F +#define QIB_7322_EXTStatus_GPIOIn_RMASK 0xFFFF +#define QIB_7322_EXTStatus_MemBISTDisabled_LSB 0xF +#define QIB_7322_EXTStatus_MemBISTDisabled_MSB 0xF +#define QIB_7322_EXTStatus_MemBISTDisabled_RMASK 0x1 +#define QIB_7322_EXTStatus_MemBISTEndTest_LSB 0xE +#define QIB_7322_EXTStatus_MemBISTEndTest_MSB 0xE +#define QIB_7322_EXTStatus_MemBISTEndTest_RMASK 0x1 + +#define QIB_7322_EXTCtrl_OFFS 0xC8 +#define QIB_7322_EXTCtrl_DEF 0x0000000000000000 +#define QIB_7322_EXTCtrl_GPIOOe_LSB 0x30 +#define QIB_7322_EXTCtrl_GPIOOe_MSB 0x3F +#define QIB_7322_EXTCtrl_GPIOOe_RMASK 0xFFFF +#define QIB_7322_EXTCtrl_GPIOInvert_LSB 0x20 +#define QIB_7322_EXTCtrl_GPIOInvert_MSB 0x2F +#define QIB_7322_EXTCtrl_GPIOInvert_RMASK 0xFFFF +#define QIB_7322_EXTCtrl_LEDPort1GreenOn_LSB 0x3 +#define QIB_7322_EXTCtrl_LEDPort1GreenOn_MSB 0x3 +#define QIB_7322_EXTCtrl_LEDPort1GreenOn_RMASK 0x1 +#define QIB_7322_EXTCtrl_LEDPort1YellowOn_LSB 0x2 +#define QIB_7322_EXTCtrl_LEDPort1YellowOn_MSB 0x2 +#define QIB_7322_EXTCtrl_LEDPort1YellowOn_RMASK 0x1 +#define QIB_7322_EXTCtrl_LEDPort0GreenOn_LSB 0x1 +#define QIB_7322_EXTCtrl_LEDPort0GreenOn_MSB 0x1 +#define QIB_7322_EXTCtrl_LEDPort0GreenOn_RMASK 0x1 +#define QIB_7322_EXTCtrl_LEDPort0YellowOn_LSB 0x0 +#define QIB_7322_EXTCtrl_LEDPort0YellowOn_MSB 0x0 +#define QIB_7322_EXTCtrl_LEDPort0YellowOn_RMASK 0x1 + +#define QIB_7322_GPIOOut_OFFS 0xE0 +#define QIB_7322_GPIOOut_DEF 0x0000000000000000 + +#define QIB_7322_GPIOMask_OFFS 0xE8 +#define QIB_7322_GPIOMask_DEF 0x0000000000000000 + +#define QIB_7322_GPIOStatus_OFFS 0xF0 +#define QIB_7322_GPIOStatus_DEF 0x0000000000000000 + +#define QIB_7322_GPIOClear_OFFS 0xF8 +#define QIB_7322_GPIOClear_DEF 0x0000000000000000 + +#define QIB_7322_RcvCtrl_OFFS 0x100 +#define QIB_7322_RcvCtrl_DEF 0x0000000000000000 +#define QIB_7322_RcvCtrl_TidReDirect_LSB 0x30 +#define QIB_7322_RcvCtrl_TidReDirect_MSB 0x3F +#define QIB_7322_RcvCtrl_TidReDirect_RMASK 0xFFFF +#define QIB_7322_RcvCtrl_TailUpd_LSB 0x2F +#define QIB_7322_RcvCtrl_TailUpd_MSB 0x2F +#define QIB_7322_RcvCtrl_TailUpd_RMASK 0x1 +#define QIB_7322_RcvCtrl_XrcTypeCode_LSB 0x2C +#define QIB_7322_RcvCtrl_XrcTypeCode_MSB 0x2E +#define QIB_7322_RcvCtrl_XrcTypeCode_RMASK 0x7 +#define QIB_7322_RcvCtrl_TidFlowEnable_LSB 0x2B +#define QIB_7322_RcvCtrl_TidFlowEnable_MSB 0x2B +#define QIB_7322_RcvCtrl_TidFlowEnable_RMASK 0x1 +#define QIB_7322_RcvCtrl_ContextCfg_LSB 0x29 +#define QIB_7322_RcvCtrl_ContextCfg_MSB 0x2A +#define QIB_7322_RcvCtrl_ContextCfg_RMASK 0x3 +#define QIB_7322_RcvCtrl_IntrAvail_LSB 0x14 +#define QIB_7322_RcvCtrl_IntrAvail_MSB 0x25 +#define QIB_7322_RcvCtrl_IntrAvail_RMASK 0x3FFFF +#define QIB_7322_RcvCtrl_dontDropRHQFull_LSB 0x0 +#define QIB_7322_RcvCtrl_dontDropRHQFull_MSB 0x11 +#define QIB_7322_RcvCtrl_dontDropRHQFull_RMASK 0x3FFFF + +#define QIB_7322_RcvHdrSize_OFFS 0x110 +#define QIB_7322_RcvHdrSize_DEF 0x0000000000000000 + +#define QIB_7322_RcvHdrCnt_OFFS 0x118 +#define QIB_7322_RcvHdrCnt_DEF 0x0000000000000000 + +#define QIB_7322_RcvHdrEntSize_OFFS 0x120 +#define QIB_7322_RcvHdrEntSize_DEF 0x0000000000000000 + +#define QIB_7322_RcvTIDBase_OFFS 0x128 +#define QIB_7322_RcvTIDBase_DEF 0x0000000000050000 + +#define QIB_7322_RcvTIDCnt_OFFS 0x130 +#define QIB_7322_RcvTIDCnt_DEF 0x0000000000000200 + +#define QIB_7322_RcvEgrBase_OFFS 0x138 +#define QIB_7322_RcvEgrBase_DEF 0x0000000000014000 + +#define QIB_7322_RcvEgrCnt_OFFS 0x140 +#define QIB_7322_RcvEgrCnt_DEF 0x0000000000001000 + +#define QIB_7322_RcvBufBase_OFFS 0x148 +#define QIB_7322_RcvBufBase_DEF 0x0000000000080000 + +#define QIB_7322_RcvBufSize_OFFS 0x150 +#define QIB_7322_RcvBufSize_DEF 0x0000000000005000 + +#define QIB_7322_RxIntMemBase_OFFS 0x158 +#define QIB_7322_RxIntMemBase_DEF 0x0000000000077000 + +#define QIB_7322_RxIntMemSize_OFFS 0x160 +#define QIB_7322_RxIntMemSize_DEF 0x0000000000007000 + +#define QIB_7322_feature_mask_OFFS 0x190 +#define QIB_7322_feature_mask_DEF 0x00000000000000XX + +#define QIB_7322_active_feature_mask_OFFS 0x198 +#define QIB_7322_active_feature_mask_DEF 0x00000000000000XX +#define QIB_7322_active_feature_mask_Port1_QDR_Enabled_LSB 0x5 +#define QIB_7322_active_feature_mask_Port1_QDR_Enabled_MSB 0x5 +#define QIB_7322_active_feature_mask_Port1_QDR_Enabled_RMASK 0x1 +#define QIB_7322_active_feature_mask_Port1_DDR_Enabled_LSB 0x4 +#define QIB_7322_active_feature_mask_Port1_DDR_Enabled_MSB 0x4 +#define QIB_7322_active_feature_mask_Port1_DDR_Enabled_RMASK 0x1 +#define QIB_7322_active_feature_mask_Port1_SDR_Enabled_LSB 0x3 +#define QIB_7322_active_feature_mask_Port1_SDR_Enabled_MSB 0x3 +#define QIB_7322_active_feature_mask_Port1_SDR_Enabled_RMASK 0x1 +#define QIB_7322_active_feature_mask_Port0_QDR_Enabled_LSB 0x2 +#define QIB_7322_active_feature_mask_Port0_QDR_Enabled_MSB 0x2 +#define QIB_7322_active_feature_mask_Port0_QDR_Enabled_RMASK 0x1 +#define QIB_7322_active_feature_mask_Port0_DDR_Enabled_LSB 0x1 +#define QIB_7322_active_feature_mask_Port0_DDR_Enabled_MSB 0x1 +#define QIB_7322_active_feature_mask_Port0_DDR_Enabled_RMASK 0x1 +#define QIB_7322_active_feature_mask_Port0_SDR_Enabled_LSB 0x0 +#define QIB_7322_active_feature_mask_Port0_SDR_Enabled_MSB 0x0 +#define QIB_7322_active_feature_mask_Port0_SDR_Enabled_RMASK 0x1 + +#define QIB_7322_SendCtrl_OFFS 0x1C0 +#define QIB_7322_SendCtrl_DEF 0x0000000000000000 +#define QIB_7322_SendCtrl_Disarm_LSB 0x1F +#define QIB_7322_SendCtrl_Disarm_MSB 0x1F +#define QIB_7322_SendCtrl_Disarm_RMASK 0x1 +#define QIB_7322_SendCtrl_SendBufAvailPad64Byte_LSB 0x1D +#define QIB_7322_SendCtrl_SendBufAvailPad64Byte_MSB 0x1D +#define QIB_7322_SendCtrl_SendBufAvailPad64Byte_RMASK 0x1 +#define QIB_7322_SendCtrl_AvailUpdThld_LSB 0x18 +#define QIB_7322_SendCtrl_AvailUpdThld_MSB 0x1C +#define QIB_7322_SendCtrl_AvailUpdThld_RMASK 0x1F +#define QIB_7322_SendCtrl_DisarmSendBuf_LSB 0x10 +#define QIB_7322_SendCtrl_DisarmSendBuf_MSB 0x17 +#define QIB_7322_SendCtrl_DisarmSendBuf_RMASK 0xFF +#define QIB_7322_SendCtrl_SpecialTriggerEn_LSB 0x4 +#define QIB_7322_SendCtrl_SpecialTriggerEn_MSB 0x4 +#define QIB_7322_SendCtrl_SpecialTriggerEn_RMASK 0x1 +#define QIB_7322_SendCtrl_SendBufAvailUpd_LSB 0x2 +#define QIB_7322_SendCtrl_SendBufAvailUpd_MSB 0x2 +#define QIB_7322_SendCtrl_SendBufAvailUpd_RMASK 0x1 +#define QIB_7322_SendCtrl_SendIntBufAvail_LSB 0x1 +#define QIB_7322_SendCtrl_SendIntBufAvail_MSB 0x1 +#define QIB_7322_SendCtrl_SendIntBufAvail_RMASK 0x1 + +#define QIB_7322_SendBufBase_OFFS 0x1C8 +#define QIB_7322_SendBufBase_DEF 0x0018000000100000 +#define QIB_7322_SendBufBase_BaseAddr_LargePIO_LSB 0x20 +#define QIB_7322_SendBufBase_BaseAddr_LargePIO_MSB 0x34 +#define QIB_7322_SendBufBase_BaseAddr_LargePIO_RMASK 0x1FFFFF +#define QIB_7322_SendBufBase_BaseAddr_SmallPIO_LSB 0x0 +#define QIB_7322_SendBufBase_BaseAddr_SmallPIO_MSB 0x14 +#define QIB_7322_SendBufBase_BaseAddr_SmallPIO_RMASK 0x1FFFFF + +#define QIB_7322_SendBufSize_OFFS 0x1D0 +#define QIB_7322_SendBufSize_DEF 0x0000108000000880 +#define QIB_7322_SendBufSize_Size_LargePIO_LSB 0x20 +#define QIB_7322_SendBufSize_Size_LargePIO_MSB 0x2C +#define QIB_7322_SendBufSize_Size_LargePIO_RMASK 0x1FFF +#define QIB_7322_SendBufSize_Size_SmallPIO_LSB 0x0 +#define QIB_7322_SendBufSize_Size_SmallPIO_MSB 0xB +#define QIB_7322_SendBufSize_Size_SmallPIO_RMASK 0xFFF + +#define QIB_7322_SendBufCnt_OFFS 0x1D8 +#define QIB_7322_SendBufCnt_DEF 0x0000002000000080 +#define QIB_7322_SendBufCnt_Num_LargeBuffers_LSB 0x20 +#define QIB_7322_SendBufCnt_Num_LargeBuffers_MSB 0x25 +#define QIB_7322_SendBufCnt_Num_LargeBuffers_RMASK 0x3F +#define QIB_7322_SendBufCnt_Num_SmallBuffers_LSB 0x0 +#define QIB_7322_SendBufCnt_Num_SmallBuffers_MSB 0x8 +#define QIB_7322_SendBufCnt_Num_SmallBuffers_RMASK 0x1FF + +#define QIB_7322_SendBufAvailAddr_OFFS 0x1E0 +#define QIB_7322_SendBufAvailAddr_DEF 0x0000000000000000 +#define QIB_7322_SendBufAvailAddr_SendBufAvailAddr_LSB 0x6 +#define QIB_7322_SendBufAvailAddr_SendBufAvailAddr_MSB 0x27 +#define QIB_7322_SendBufAvailAddr_SendBufAvailAddr_RMASK 0x3FFFFFFFF + +#define QIB_7322_SendBufErr0_OFFS 0x240 +#define QIB_7322_SendBufErr0_DEF 0x0000000000000000 +#define QIB_7322_SendBufErr0_SendBufErr_63_0_LSB 0x0 +#define QIB_7322_SendBufErr0_SendBufErr_63_0_MSB 0x3F +#define QIB_7322_SendBufErr0_SendBufErr_63_0_RMASK 0x0 + +#define QIB_7322_AvailUpdCount_OFFS 0x268 +#define QIB_7322_AvailUpdCount_DEF 0x0000000000000000 +#define QIB_7322_AvailUpdCount_AvailUpdCount_LSB 0x0 +#define QIB_7322_AvailUpdCount_AvailUpdCount_MSB 0x4 +#define QIB_7322_AvailUpdCount_AvailUpdCount_RMASK 0x1F + +#define QIB_7322_RcvHdrAddr0_OFFS 0x280 +#define QIB_7322_RcvHdrAddr0_DEF 0x0000000000000000 +#define QIB_7322_RcvHdrAddr0_RcvHdrAddr_LSB 0x2 +#define QIB_7322_RcvHdrAddr0_RcvHdrAddr_MSB 0x27 +#define QIB_7322_RcvHdrAddr0_RcvHdrAddr_RMASK 0x3FFFFFFFFF + +#define QIB_7322_RcvHdrTailAddr0_OFFS 0x340 +#define QIB_7322_RcvHdrTailAddr0_DEF 0x0000000000000000 +#define QIB_7322_RcvHdrTailAddr0_RcvHdrTailAddr_LSB 0x2 +#define QIB_7322_RcvHdrTailAddr0_RcvHdrTailAddr_MSB 0x27 +#define QIB_7322_RcvHdrTailAddr0_RcvHdrTailAddr_RMASK 0x3FFFFFFFFF + +#define QIB_7322_ahb_access_ctrl_OFFS 0x460 +#define QIB_7322_ahb_access_ctrl_DEF 0x0000000000000000 +#define QIB_7322_ahb_access_ctrl_sw_sel_ahb_trgt_LSB 0x1 +#define QIB_7322_ahb_access_ctrl_sw_sel_ahb_trgt_MSB 0x2 +#define QIB_7322_ahb_access_ctrl_sw_sel_ahb_trgt_RMASK 0x3 +#define QIB_7322_ahb_access_ctrl_sw_ahb_sel_LSB 0x0 +#define QIB_7322_ahb_access_ctrl_sw_ahb_sel_MSB 0x0 +#define QIB_7322_ahb_access_ctrl_sw_ahb_sel_RMASK 0x1 + +#define QIB_7322_ahb_transaction_reg_OFFS 0x468 +#define QIB_7322_ahb_transaction_reg_DEF 0x0000000080000000 +#define QIB_7322_ahb_transaction_reg_ahb_data_LSB 0x20 +#define QIB_7322_ahb_transaction_reg_ahb_data_MSB 0x3F +#define QIB_7322_ahb_transaction_reg_ahb_data_RMASK 0xFFFFFFFF +#define QIB_7322_ahb_transaction_reg_ahb_rdy_LSB 0x1F +#define QIB_7322_ahb_transaction_reg_ahb_rdy_MSB 0x1F +#define QIB_7322_ahb_transaction_reg_ahb_rdy_RMASK 0x1 +#define QIB_7322_ahb_transaction_reg_ahb_req_err_LSB 0x1E +#define QIB_7322_ahb_transaction_reg_ahb_req_err_MSB 0x1E +#define QIB_7322_ahb_transaction_reg_ahb_req_err_RMASK 0x1 +#define QIB_7322_ahb_transaction_reg_write_not_read_LSB 0x1B +#define QIB_7322_ahb_transaction_reg_write_not_read_MSB 0x1B +#define QIB_7322_ahb_transaction_reg_write_not_read_RMASK 0x1 +#define QIB_7322_ahb_transaction_reg_ahb_address_LSB 0x10 +#define QIB_7322_ahb_transaction_reg_ahb_address_MSB 0x1A +#define QIB_7322_ahb_transaction_reg_ahb_address_RMASK 0x7FF + +#define QIB_7322_SPC_JTAG_ACCESS_REG_OFFS 0x470 +#define QIB_7322_SPC_JTAG_ACCESS_REG_DEF 0x0000000000000001 +#define QIB_7322_SPC_JTAG_ACCESS_REG_SPC_JTAG_ACCESS_EN_LSB 0xA +#define QIB_7322_SPC_JTAG_ACCESS_REG_SPC_JTAG_ACCESS_EN_MSB 0xA +#define QIB_7322_SPC_JTAG_ACCESS_REG_SPC_JTAG_ACCESS_EN_RMASK 0x1 +#define QIB_7322_SPC_JTAG_ACCESS_REG_bist_en_LSB 0x5 +#define QIB_7322_SPC_JTAG_ACCESS_REG_bist_en_MSB 0x9 +#define QIB_7322_SPC_JTAG_ACCESS_REG_bist_en_RMASK 0x1F +#define QIB_7322_SPC_JTAG_ACCESS_REG_opcode_LSB 0x3 +#define QIB_7322_SPC_JTAG_ACCESS_REG_opcode_MSB 0x4 +#define QIB_7322_SPC_JTAG_ACCESS_REG_opcode_RMASK 0x3 +#define QIB_7322_SPC_JTAG_ACCESS_REG_tdi_LSB 0x2 +#define QIB_7322_SPC_JTAG_ACCESS_REG_tdi_MSB 0x2 +#define QIB_7322_SPC_JTAG_ACCESS_REG_tdi_RMASK 0x1 +#define QIB_7322_SPC_JTAG_ACCESS_REG_tdo_LSB 0x1 +#define QIB_7322_SPC_JTAG_ACCESS_REG_tdo_MSB 0x1 +#define QIB_7322_SPC_JTAG_ACCESS_REG_tdo_RMASK 0x1 +#define QIB_7322_SPC_JTAG_ACCESS_REG_rdy_LSB 0x0 +#define QIB_7322_SPC_JTAG_ACCESS_REG_rdy_MSB 0x0 +#define QIB_7322_SPC_JTAG_ACCESS_REG_rdy_RMASK 0x1 + +#define QIB_7322_SendCheckMask0_OFFS 0x4C0 +#define QIB_7322_SendCheckMask0_DEF 0x0000000000000000 +#define QIB_7322_SendCheckMask0_SendCheckMask_63_32_LSB 0x0 +#define QIB_7322_SendCheckMask0_SendCheckMask_63_32_MSB 0x3F +#define QIB_7322_SendCheckMask0_SendCheckMask_63_32_RMASK 0x0 + +#define QIB_7322_SendGRHCheckMask0_OFFS 0x4E0 +#define QIB_7322_SendGRHCheckMask0_DEF 0x0000000000000000 +#define QIB_7322_SendGRHCheckMask0_SendGRHCheckMask_63_32_LSB 0x0 +#define QIB_7322_SendGRHCheckMask0_SendGRHCheckMask_63_32_MSB 0x3F +#define QIB_7322_SendGRHCheckMask0_SendGRHCheckMask_63_32_RMASK 0x0 + +#define QIB_7322_SendIBPacketMask0_OFFS 0x500 +#define QIB_7322_SendIBPacketMask0_DEF 0x0000000000000000 +#define QIB_7322_SendIBPacketMask0_SendIBPacketMask_63_32_LSB 0x0 +#define QIB_7322_SendIBPacketMask0_SendIBPacketMask_63_32_MSB 0x3F +#define QIB_7322_SendIBPacketMask0_SendIBPacketMask_63_32_RMASK 0x0 + +#define QIB_7322_IntRedirect0_OFFS 0x540 +#define QIB_7322_IntRedirect0_DEF 0x0000000000000000 +#define QIB_7322_IntRedirect0_vec11_LSB 0x37 +#define QIB_7322_IntRedirect0_vec11_MSB 0x3B +#define QIB_7322_IntRedirect0_vec11_RMASK 0x1F +#define QIB_7322_IntRedirect0_vec10_LSB 0x32 +#define QIB_7322_IntRedirect0_vec10_MSB 0x36 +#define QIB_7322_IntRedirect0_vec10_RMASK 0x1F +#define QIB_7322_IntRedirect0_vec9_LSB 0x2D +#define QIB_7322_IntRedirect0_vec9_MSB 0x31 +#define QIB_7322_IntRedirect0_vec9_RMASK 0x1F +#define QIB_7322_IntRedirect0_vec8_LSB 0x28 +#define QIB_7322_IntRedirect0_vec8_MSB 0x2C +#define QIB_7322_IntRedirect0_vec8_RMASK 0x1F +#define QIB_7322_IntRedirect0_vec7_LSB 0x23 +#define QIB_7322_IntRedirect0_vec7_MSB 0x27 +#define QIB_7322_IntRedirect0_vec7_RMASK 0x1F +#define QIB_7322_IntRedirect0_vec6_LSB 0x1E +#define QIB_7322_IntRedirect0_vec6_MSB 0x22 +#define QIB_7322_IntRedirect0_vec6_RMASK 0x1F +#define QIB_7322_IntRedirect0_vec5_LSB 0x19 +#define QIB_7322_IntRedirect0_vec5_MSB 0x1D +#define QIB_7322_IntRedirect0_vec5_RMASK 0x1F +#define QIB_7322_IntRedirect0_vec4_LSB 0x14 +#define QIB_7322_IntRedirect0_vec4_MSB 0x18 +#define QIB_7322_IntRedirect0_vec4_RMASK 0x1F +#define QIB_7322_IntRedirect0_vec3_LSB 0xF +#define QIB_7322_IntRedirect0_vec3_MSB 0x13 +#define QIB_7322_IntRedirect0_vec3_RMASK 0x1F +#define QIB_7322_IntRedirect0_vec2_LSB 0xA +#define QIB_7322_IntRedirect0_vec2_MSB 0xE +#define QIB_7322_IntRedirect0_vec2_RMASK 0x1F +#define QIB_7322_IntRedirect0_vec1_LSB 0x5 +#define QIB_7322_IntRedirect0_vec1_MSB 0x9 +#define QIB_7322_IntRedirect0_vec1_RMASK 0x1F +#define QIB_7322_IntRedirect0_vec0_LSB 0x0 +#define QIB_7322_IntRedirect0_vec0_MSB 0x4 +#define QIB_7322_IntRedirect0_vec0_RMASK 0x1F + +#define QIB_7322_Int_Granted_OFFS 0x570 +#define QIB_7322_Int_Granted_DEF 0x0000000000000000 + +#define QIB_7322_vec_clr_without_int_OFFS 0x578 +#define QIB_7322_vec_clr_without_int_DEF 0x0000000000000000 + +#define QIB_7322_DCACtrlA_OFFS 0x580 +#define QIB_7322_DCACtrlA_DEF 0x0000000000000000 +#define QIB_7322_DCACtrlA_SendDMAHead1DCAEnable_LSB 0x4 +#define QIB_7322_DCACtrlA_SendDMAHead1DCAEnable_MSB 0x4 +#define QIB_7322_DCACtrlA_SendDMAHead1DCAEnable_RMASK 0x1 +#define QIB_7322_DCACtrlA_SendDMAHead0DCAEnable_LSB 0x3 +#define QIB_7322_DCACtrlA_SendDMAHead0DCAEnable_MSB 0x3 +#define QIB_7322_DCACtrlA_SendDMAHead0DCAEnable_RMASK 0x1 +#define QIB_7322_DCACtrlA_RcvTailUpdDCAEnable_LSB 0x2 +#define QIB_7322_DCACtrlA_RcvTailUpdDCAEnable_MSB 0x2 +#define QIB_7322_DCACtrlA_RcvTailUpdDCAEnable_RMASK 0x1 +#define QIB_7322_DCACtrlA_EagerDCAEnable_LSB 0x1 +#define QIB_7322_DCACtrlA_EagerDCAEnable_MSB 0x1 +#define QIB_7322_DCACtrlA_EagerDCAEnable_RMASK 0x1 +#define QIB_7322_DCACtrlA_RcvHdrqDCAEnable_LSB 0x0 +#define QIB_7322_DCACtrlA_RcvHdrqDCAEnable_MSB 0x0 +#define QIB_7322_DCACtrlA_RcvHdrqDCAEnable_RMASK 0x1 + +#define QIB_7322_DCACtrlB_OFFS 0x588 +#define QIB_7322_DCACtrlB_DEF 0x0000000000000000 +#define QIB_7322_DCACtrlB_RcvHdrq3DCAXfrCnt_LSB 0x36 +#define QIB_7322_DCACtrlB_RcvHdrq3DCAXfrCnt_MSB 0x3B +#define QIB_7322_DCACtrlB_RcvHdrq3DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlB_RcvHdrq3DCAOPH_LSB 0x2E +#define QIB_7322_DCACtrlB_RcvHdrq3DCAOPH_MSB 0x35 +#define QIB_7322_DCACtrlB_RcvHdrq3DCAOPH_RMASK 0xFF +#define QIB_7322_DCACtrlB_RcvHdrq2DCAXfrCnt_LSB 0x28 +#define QIB_7322_DCACtrlB_RcvHdrq2DCAXfrCnt_MSB 0x2D +#define QIB_7322_DCACtrlB_RcvHdrq2DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlB_RcvHdrq2DCAOPH_LSB 0x20 +#define QIB_7322_DCACtrlB_RcvHdrq2DCAOPH_MSB 0x27 +#define QIB_7322_DCACtrlB_RcvHdrq2DCAOPH_RMASK 0xFF +#define QIB_7322_DCACtrlB_RcvHdrq1DCAXfrCnt_LSB 0x16 +#define QIB_7322_DCACtrlB_RcvHdrq1DCAXfrCnt_MSB 0x1B +#define QIB_7322_DCACtrlB_RcvHdrq1DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlB_RcvHdrq1DCAOPH_LSB 0xE +#define QIB_7322_DCACtrlB_RcvHdrq1DCAOPH_MSB 0x15 +#define QIB_7322_DCACtrlB_RcvHdrq1DCAOPH_RMASK 0xFF +#define QIB_7322_DCACtrlB_RcvHdrq0DCAXfrCnt_LSB 0x8 +#define QIB_7322_DCACtrlB_RcvHdrq0DCAXfrCnt_MSB 0xD +#define QIB_7322_DCACtrlB_RcvHdrq0DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlB_RcvHdrq0DCAOPH_LSB 0x0 +#define QIB_7322_DCACtrlB_RcvHdrq0DCAOPH_MSB 0x7 +#define QIB_7322_DCACtrlB_RcvHdrq0DCAOPH_RMASK 0xFF + +#define QIB_7322_DCACtrlC_OFFS 0x590 +#define QIB_7322_DCACtrlC_DEF 0x0000000000000000 +#define QIB_7322_DCACtrlC_RcvHdrq7DCAXfrCnt_LSB 0x36 +#define QIB_7322_DCACtrlC_RcvHdrq7DCAXfrCnt_MSB 0x3B +#define QIB_7322_DCACtrlC_RcvHdrq7DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlC_RcvHdrq7DCAOPH_LSB 0x2E +#define QIB_7322_DCACtrlC_RcvHdrq7DCAOPH_MSB 0x35 +#define QIB_7322_DCACtrlC_RcvHdrq7DCAOPH_RMASK 0xFF +#define QIB_7322_DCACtrlC_RcvHdrq6DCAXfrCnt_LSB 0x28 +#define QIB_7322_DCACtrlC_RcvHdrq6DCAXfrCnt_MSB 0x2D +#define QIB_7322_DCACtrlC_RcvHdrq6DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlC_RcvHdrq6DCAOPH_LSB 0x20 +#define QIB_7322_DCACtrlC_RcvHdrq6DCAOPH_MSB 0x27 +#define QIB_7322_DCACtrlC_RcvHdrq6DCAOPH_RMASK 0xFF +#define QIB_7322_DCACtrlC_RcvHdrq5DCAXfrCnt_LSB 0x16 +#define QIB_7322_DCACtrlC_RcvHdrq5DCAXfrCnt_MSB 0x1B +#define QIB_7322_DCACtrlC_RcvHdrq5DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlC_RcvHdrq5DCAOPH_LSB 0xE +#define QIB_7322_DCACtrlC_RcvHdrq5DCAOPH_MSB 0x15 +#define QIB_7322_DCACtrlC_RcvHdrq5DCAOPH_RMASK 0xFF +#define QIB_7322_DCACtrlC_RcvHdrq4DCAXfrCnt_LSB 0x8 +#define QIB_7322_DCACtrlC_RcvHdrq4DCAXfrCnt_MSB 0xD +#define QIB_7322_DCACtrlC_RcvHdrq4DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlC_RcvHdrq4DCAOPH_LSB 0x0 +#define QIB_7322_DCACtrlC_RcvHdrq4DCAOPH_MSB 0x7 +#define QIB_7322_DCACtrlC_RcvHdrq4DCAOPH_RMASK 0xFF + +#define QIB_7322_DCACtrlD_OFFS 0x598 +#define QIB_7322_DCACtrlD_DEF 0x0000000000000000 +#define QIB_7322_DCACtrlD_RcvHdrq11DCAXfrCnt_LSB 0x36 +#define QIB_7322_DCACtrlD_RcvHdrq11DCAXfrCnt_MSB 0x3B +#define QIB_7322_DCACtrlD_RcvHdrq11DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlD_RcvHdrq11DCAOPH_LSB 0x2E +#define QIB_7322_DCACtrlD_RcvHdrq11DCAOPH_MSB 0x35 +#define QIB_7322_DCACtrlD_RcvHdrq11DCAOPH_RMASK 0xFF +#define QIB_7322_DCACtrlD_RcvHdrq10DCAXfrCnt_LSB 0x28 +#define QIB_7322_DCACtrlD_RcvHdrq10DCAXfrCnt_MSB 0x2D +#define QIB_7322_DCACtrlD_RcvHdrq10DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlD_RcvHdrq10DCAOPH_LSB 0x20 +#define QIB_7322_DCACtrlD_RcvHdrq10DCAOPH_MSB 0x27 +#define QIB_7322_DCACtrlD_RcvHdrq10DCAOPH_RMASK 0xFF +#define QIB_7322_DCACtrlD_RcvHdrq9DCAXfrCnt_LSB 0x16 +#define QIB_7322_DCACtrlD_RcvHdrq9DCAXfrCnt_MSB 0x1B +#define QIB_7322_DCACtrlD_RcvHdrq9DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlD_RcvHdrq9DCAOPH_LSB 0xE +#define QIB_7322_DCACtrlD_RcvHdrq9DCAOPH_MSB 0x15 +#define QIB_7322_DCACtrlD_RcvHdrq9DCAOPH_RMASK 0xFF +#define QIB_7322_DCACtrlD_RcvHdrq8DCAXfrCnt_LSB 0x8 +#define QIB_7322_DCACtrlD_RcvHdrq8DCAXfrCnt_MSB 0xD +#define QIB_7322_DCACtrlD_RcvHdrq8DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlD_RcvHdrq8DCAOPH_LSB 0x0 +#define QIB_7322_DCACtrlD_RcvHdrq8DCAOPH_MSB 0x7 +#define QIB_7322_DCACtrlD_RcvHdrq8DCAOPH_RMASK 0xFF + +#define QIB_7322_DCACtrlE_OFFS 0x5A0 +#define QIB_7322_DCACtrlE_DEF 0x0000000000000000 +#define QIB_7322_DCACtrlE_RcvHdrq15DCAXfrCnt_LSB 0x36 +#define QIB_7322_DCACtrlE_RcvHdrq15DCAXfrCnt_MSB 0x3B +#define QIB_7322_DCACtrlE_RcvHdrq15DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlE_RcvHdrq15DCAOPH_LSB 0x2E +#define QIB_7322_DCACtrlE_RcvHdrq15DCAOPH_MSB 0x35 +#define QIB_7322_DCACtrlE_RcvHdrq15DCAOPH_RMASK 0xFF +#define QIB_7322_DCACtrlE_RcvHdrq14DCAXfrCnt_LSB 0x28 +#define QIB_7322_DCACtrlE_RcvHdrq14DCAXfrCnt_MSB 0x2D +#define QIB_7322_DCACtrlE_RcvHdrq14DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlE_RcvHdrq14DCAOPH_LSB 0x20 +#define QIB_7322_DCACtrlE_RcvHdrq14DCAOPH_MSB 0x27 +#define QIB_7322_DCACtrlE_RcvHdrq14DCAOPH_RMASK 0xFF +#define QIB_7322_DCACtrlE_RcvHdrq13DCAXfrCnt_LSB 0x16 +#define QIB_7322_DCACtrlE_RcvHdrq13DCAXfrCnt_MSB 0x1B +#define QIB_7322_DCACtrlE_RcvHdrq13DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlE_RcvHdrq13DCAOPH_LSB 0xE +#define QIB_7322_DCACtrlE_RcvHdrq13DCAOPH_MSB 0x15 +#define QIB_7322_DCACtrlE_RcvHdrq13DCAOPH_RMASK 0xFF +#define QIB_7322_DCACtrlE_RcvHdrq12DCAXfrCnt_LSB 0x8 +#define QIB_7322_DCACtrlE_RcvHdrq12DCAXfrCnt_MSB 0xD +#define QIB_7322_DCACtrlE_RcvHdrq12DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlE_RcvHdrq12DCAOPH_LSB 0x0 +#define QIB_7322_DCACtrlE_RcvHdrq12DCAOPH_MSB 0x7 +#define QIB_7322_DCACtrlE_RcvHdrq12DCAOPH_RMASK 0xFF + +#define QIB_7322_DCACtrlF_OFFS 0x5A8 +#define QIB_7322_DCACtrlF_DEF 0x0000000000000000 +#define QIB_7322_DCACtrlF_SendDma1DCAOPH_LSB 0x28 +#define QIB_7322_DCACtrlF_SendDma1DCAOPH_MSB 0x2F +#define QIB_7322_DCACtrlF_SendDma1DCAOPH_RMASK 0xFF +#define QIB_7322_DCACtrlF_SendDma0DCAOPH_LSB 0x20 +#define QIB_7322_DCACtrlF_SendDma0DCAOPH_MSB 0x27 +#define QIB_7322_DCACtrlF_SendDma0DCAOPH_RMASK 0xFF +#define QIB_7322_DCACtrlF_RcvHdrq17DCAXfrCnt_LSB 0x16 +#define QIB_7322_DCACtrlF_RcvHdrq17DCAXfrCnt_MSB 0x1B +#define QIB_7322_DCACtrlF_RcvHdrq17DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlF_RcvHdrq17DCAOPH_LSB 0xE +#define QIB_7322_DCACtrlF_RcvHdrq17DCAOPH_MSB 0x15 +#define QIB_7322_DCACtrlF_RcvHdrq17DCAOPH_RMASK 0xFF +#define QIB_7322_DCACtrlF_RcvHdrq16DCAXfrCnt_LSB 0x8 +#define QIB_7322_DCACtrlF_RcvHdrq16DCAXfrCnt_MSB 0xD +#define QIB_7322_DCACtrlF_RcvHdrq16DCAXfrCnt_RMASK 0x3F +#define QIB_7322_DCACtrlF_RcvHdrq16DCAOPH_LSB 0x0 +#define QIB_7322_DCACtrlF_RcvHdrq16DCAOPH_MSB 0x7 +#define QIB_7322_DCACtrlF_RcvHdrq16DCAOPH_RMASK 0xFF + +#define QIB_7322_RcvAvailTimeOut0_OFFS 0xC00 +#define QIB_7322_RcvAvailTimeOut0_DEF 0x0000000000000000 +#define QIB_7322_RcvAvailTimeOut0_RcvAvailTOCount_LSB 0x10 +#define QIB_7322_RcvAvailTimeOut0_RcvAvailTOCount_MSB 0x1F +#define QIB_7322_RcvAvailTimeOut0_RcvAvailTOCount_RMASK 0xFFFF +#define QIB_7322_RcvAvailTimeOut0_RcvAvailTOReload_LSB 0x0 +#define QIB_7322_RcvAvailTimeOut0_RcvAvailTOReload_MSB 0xF +#define QIB_7322_RcvAvailTimeOut0_RcvAvailTOReload_RMASK 0xFFFF + +#define QIB_7322_CntrRegBase_0_OFFS 0x1028 +#define QIB_7322_CntrRegBase_0_DEF 0x0000000000012000 + +#define QIB_7322_ErrMask_0_OFFS 0x1080 +#define QIB_7322_ErrMask_0_DEF 0x0000000000000000 +#define QIB_7322_ErrMask_0_IBStatusChangedMask_LSB 0x3A +#define QIB_7322_ErrMask_0_IBStatusChangedMask_MSB 0x3A +#define QIB_7322_ErrMask_0_IBStatusChangedMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SHeadersErrMask_LSB 0x39 +#define QIB_7322_ErrMask_0_SHeadersErrMask_MSB 0x39 +#define QIB_7322_ErrMask_0_SHeadersErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_VL15BufMisuseErrMask_LSB 0x36 +#define QIB_7322_ErrMask_0_VL15BufMisuseErrMask_MSB 0x36 +#define QIB_7322_ErrMask_0_VL15BufMisuseErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SDmaHaltErrMask_LSB 0x31 +#define QIB_7322_ErrMask_0_SDmaHaltErrMask_MSB 0x31 +#define QIB_7322_ErrMask_0_SDmaHaltErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SDmaDescAddrMisalignErrMask_LSB 0x30 +#define QIB_7322_ErrMask_0_SDmaDescAddrMisalignErrMask_MSB 0x30 +#define QIB_7322_ErrMask_0_SDmaDescAddrMisalignErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SDmaUnexpDataErrMask_LSB 0x2F +#define QIB_7322_ErrMask_0_SDmaUnexpDataErrMask_MSB 0x2F +#define QIB_7322_ErrMask_0_SDmaUnexpDataErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SDmaMissingDwErrMask_LSB 0x2E +#define QIB_7322_ErrMask_0_SDmaMissingDwErrMask_MSB 0x2E +#define QIB_7322_ErrMask_0_SDmaMissingDwErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SDmaDwEnErrMask_LSB 0x2D +#define QIB_7322_ErrMask_0_SDmaDwEnErrMask_MSB 0x2D +#define QIB_7322_ErrMask_0_SDmaDwEnErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SDmaRpyTagErrMask_LSB 0x2C +#define QIB_7322_ErrMask_0_SDmaRpyTagErrMask_MSB 0x2C +#define QIB_7322_ErrMask_0_SDmaRpyTagErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SDma1stDescErrMask_LSB 0x2B +#define QIB_7322_ErrMask_0_SDma1stDescErrMask_MSB 0x2B +#define QIB_7322_ErrMask_0_SDma1stDescErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SDmaBaseErrMask_LSB 0x2A +#define QIB_7322_ErrMask_0_SDmaBaseErrMask_MSB 0x2A +#define QIB_7322_ErrMask_0_SDmaBaseErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SDmaTailOutOfBoundErrMask_LSB 0x29 +#define QIB_7322_ErrMask_0_SDmaTailOutOfBoundErrMask_MSB 0x29 +#define QIB_7322_ErrMask_0_SDmaTailOutOfBoundErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SDmaOutOfBoundErrMask_LSB 0x28 +#define QIB_7322_ErrMask_0_SDmaOutOfBoundErrMask_MSB 0x28 +#define QIB_7322_ErrMask_0_SDmaOutOfBoundErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SDmaGenMismatchErrMask_LSB 0x27 +#define QIB_7322_ErrMask_0_SDmaGenMismatchErrMask_MSB 0x27 +#define QIB_7322_ErrMask_0_SDmaGenMismatchErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SendBufMisuseErrMask_LSB 0x26 +#define QIB_7322_ErrMask_0_SendBufMisuseErrMask_MSB 0x26 +#define QIB_7322_ErrMask_0_SendBufMisuseErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SendUnsupportedVLErrMask_LSB 0x25 +#define QIB_7322_ErrMask_0_SendUnsupportedVLErrMask_MSB 0x25 +#define QIB_7322_ErrMask_0_SendUnsupportedVLErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SendUnexpectedPktNumErrMask_LSB 0x24 +#define QIB_7322_ErrMask_0_SendUnexpectedPktNumErrMask_MSB 0x24 +#define QIB_7322_ErrMask_0_SendUnexpectedPktNumErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SendDroppedDataPktErrMask_LSB 0x22 +#define QIB_7322_ErrMask_0_SendDroppedDataPktErrMask_MSB 0x22 +#define QIB_7322_ErrMask_0_SendDroppedDataPktErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SendDroppedSmpPktErrMask_LSB 0x21 +#define QIB_7322_ErrMask_0_SendDroppedSmpPktErrMask_MSB 0x21 +#define QIB_7322_ErrMask_0_SendDroppedSmpPktErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SendPktLenErrMask_LSB 0x20 +#define QIB_7322_ErrMask_0_SendPktLenErrMask_MSB 0x20 +#define QIB_7322_ErrMask_0_SendPktLenErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SendUnderRunErrMask_LSB 0x1F +#define QIB_7322_ErrMask_0_SendUnderRunErrMask_MSB 0x1F +#define QIB_7322_ErrMask_0_SendUnderRunErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SendMaxPktLenErrMask_LSB 0x1E +#define QIB_7322_ErrMask_0_SendMaxPktLenErrMask_MSB 0x1E +#define QIB_7322_ErrMask_0_SendMaxPktLenErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_SendMinPktLenErrMask_LSB 0x1D +#define QIB_7322_ErrMask_0_SendMinPktLenErrMask_MSB 0x1D +#define QIB_7322_ErrMask_0_SendMinPktLenErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_RcvIBLostLinkErrMask_LSB 0x11 +#define QIB_7322_ErrMask_0_RcvIBLostLinkErrMask_MSB 0x11 +#define QIB_7322_ErrMask_0_RcvIBLostLinkErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_RcvHdrErrMask_LSB 0x10 +#define QIB_7322_ErrMask_0_RcvHdrErrMask_MSB 0x10 +#define QIB_7322_ErrMask_0_RcvHdrErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_RcvHdrLenErrMask_LSB 0xF +#define QIB_7322_ErrMask_0_RcvHdrLenErrMask_MSB 0xF +#define QIB_7322_ErrMask_0_RcvHdrLenErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_RcvBadTidErrMask_LSB 0xE +#define QIB_7322_ErrMask_0_RcvBadTidErrMask_MSB 0xE +#define QIB_7322_ErrMask_0_RcvBadTidErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_RcvBadVersionErrMask_LSB 0xB +#define QIB_7322_ErrMask_0_RcvBadVersionErrMask_MSB 0xB +#define QIB_7322_ErrMask_0_RcvBadVersionErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_RcvIBFlowErrMask_LSB 0xA +#define QIB_7322_ErrMask_0_RcvIBFlowErrMask_MSB 0xA +#define QIB_7322_ErrMask_0_RcvIBFlowErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_RcvEBPErrMask_LSB 0x9 +#define QIB_7322_ErrMask_0_RcvEBPErrMask_MSB 0x9 +#define QIB_7322_ErrMask_0_RcvEBPErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_RcvUnsupportedVLErrMask_LSB 0x8 +#define QIB_7322_ErrMask_0_RcvUnsupportedVLErrMask_MSB 0x8 +#define QIB_7322_ErrMask_0_RcvUnsupportedVLErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_RcvUnexpectedCharErrMask_LSB 0x7 +#define QIB_7322_ErrMask_0_RcvUnexpectedCharErrMask_MSB 0x7 +#define QIB_7322_ErrMask_0_RcvUnexpectedCharErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_RcvShortPktLenErrMask_LSB 0x6 +#define QIB_7322_ErrMask_0_RcvShortPktLenErrMask_MSB 0x6 +#define QIB_7322_ErrMask_0_RcvShortPktLenErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_RcvLongPktLenErrMask_LSB 0x5 +#define QIB_7322_ErrMask_0_RcvLongPktLenErrMask_MSB 0x5 +#define QIB_7322_ErrMask_0_RcvLongPktLenErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_RcvMaxPktLenErrMask_LSB 0x4 +#define QIB_7322_ErrMask_0_RcvMaxPktLenErrMask_MSB 0x4 +#define QIB_7322_ErrMask_0_RcvMaxPktLenErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_RcvMinPktLenErrMask_LSB 0x3 +#define QIB_7322_ErrMask_0_RcvMinPktLenErrMask_MSB 0x3 +#define QIB_7322_ErrMask_0_RcvMinPktLenErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_RcvICRCErrMask_LSB 0x2 +#define QIB_7322_ErrMask_0_RcvICRCErrMask_MSB 0x2 +#define QIB_7322_ErrMask_0_RcvICRCErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_RcvVCRCErrMask_LSB 0x1 +#define QIB_7322_ErrMask_0_RcvVCRCErrMask_MSB 0x1 +#define QIB_7322_ErrMask_0_RcvVCRCErrMask_RMASK 0x1 +#define QIB_7322_ErrMask_0_RcvFormatErrMask_LSB 0x0 +#define QIB_7322_ErrMask_0_RcvFormatErrMask_MSB 0x0 +#define QIB_7322_ErrMask_0_RcvFormatErrMask_RMASK 0x1 + +#define QIB_7322_ErrStatus_0_OFFS 0x1088 +#define QIB_7322_ErrStatus_0_DEF 0x0000000000000000 +#define QIB_7322_ErrStatus_0_IBStatusChanged_LSB 0x3A +#define QIB_7322_ErrStatus_0_IBStatusChanged_MSB 0x3A +#define QIB_7322_ErrStatus_0_IBStatusChanged_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SHeadersErr_LSB 0x39 +#define QIB_7322_ErrStatus_0_SHeadersErr_MSB 0x39 +#define QIB_7322_ErrStatus_0_SHeadersErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_VL15BufMisuseErr_LSB 0x36 +#define QIB_7322_ErrStatus_0_VL15BufMisuseErr_MSB 0x36 +#define QIB_7322_ErrStatus_0_VL15BufMisuseErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SDmaHaltErr_LSB 0x31 +#define QIB_7322_ErrStatus_0_SDmaHaltErr_MSB 0x31 +#define QIB_7322_ErrStatus_0_SDmaHaltErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SDmaDescAddrMisalignErr_LSB 0x30 +#define QIB_7322_ErrStatus_0_SDmaDescAddrMisalignErr_MSB 0x30 +#define QIB_7322_ErrStatus_0_SDmaDescAddrMisalignErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SDmaUnexpDataErr_LSB 0x2F +#define QIB_7322_ErrStatus_0_SDmaUnexpDataErr_MSB 0x2F +#define QIB_7322_ErrStatus_0_SDmaUnexpDataErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SDmaMissingDwErr_LSB 0x2E +#define QIB_7322_ErrStatus_0_SDmaMissingDwErr_MSB 0x2E +#define QIB_7322_ErrStatus_0_SDmaMissingDwErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SDmaDwEnErr_LSB 0x2D +#define QIB_7322_ErrStatus_0_SDmaDwEnErr_MSB 0x2D +#define QIB_7322_ErrStatus_0_SDmaDwEnErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SDmaRpyTagErr_LSB 0x2C +#define QIB_7322_ErrStatus_0_SDmaRpyTagErr_MSB 0x2C +#define QIB_7322_ErrStatus_0_SDmaRpyTagErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SDma1stDescErr_LSB 0x2B +#define QIB_7322_ErrStatus_0_SDma1stDescErr_MSB 0x2B +#define QIB_7322_ErrStatus_0_SDma1stDescErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SDmaBaseErr_LSB 0x2A +#define QIB_7322_ErrStatus_0_SDmaBaseErr_MSB 0x2A +#define QIB_7322_ErrStatus_0_SDmaBaseErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SDmaTailOutOfBoundErr_LSB 0x29 +#define QIB_7322_ErrStatus_0_SDmaTailOutOfBoundErr_MSB 0x29 +#define QIB_7322_ErrStatus_0_SDmaTailOutOfBoundErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SDmaOutOfBoundErr_LSB 0x28 +#define QIB_7322_ErrStatus_0_SDmaOutOfBoundErr_MSB 0x28 +#define QIB_7322_ErrStatus_0_SDmaOutOfBoundErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SDmaGenMismatchErr_LSB 0x27 +#define QIB_7322_ErrStatus_0_SDmaGenMismatchErr_MSB 0x27 +#define QIB_7322_ErrStatus_0_SDmaGenMismatchErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SendBufMisuseErr_LSB 0x26 +#define QIB_7322_ErrStatus_0_SendBufMisuseErr_MSB 0x26 +#define QIB_7322_ErrStatus_0_SendBufMisuseErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SendUnsupportedVLErr_LSB 0x25 +#define QIB_7322_ErrStatus_0_SendUnsupportedVLErr_MSB 0x25 +#define QIB_7322_ErrStatus_0_SendUnsupportedVLErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SendUnexpectedPktNumErr_LSB 0x24 +#define QIB_7322_ErrStatus_0_SendUnexpectedPktNumErr_MSB 0x24 +#define QIB_7322_ErrStatus_0_SendUnexpectedPktNumErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SendDroppedDataPktErr_LSB 0x22 +#define QIB_7322_ErrStatus_0_SendDroppedDataPktErr_MSB 0x22 +#define QIB_7322_ErrStatus_0_SendDroppedDataPktErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SendDroppedSmpPktErr_LSB 0x21 +#define QIB_7322_ErrStatus_0_SendDroppedSmpPktErr_MSB 0x21 +#define QIB_7322_ErrStatus_0_SendDroppedSmpPktErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SendPktLenErr_LSB 0x20 +#define QIB_7322_ErrStatus_0_SendPktLenErr_MSB 0x20 +#define QIB_7322_ErrStatus_0_SendPktLenErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SendUnderRunErr_LSB 0x1F +#define QIB_7322_ErrStatus_0_SendUnderRunErr_MSB 0x1F +#define QIB_7322_ErrStatus_0_SendUnderRunErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SendMaxPktLenErr_LSB 0x1E +#define QIB_7322_ErrStatus_0_SendMaxPktLenErr_MSB 0x1E +#define QIB_7322_ErrStatus_0_SendMaxPktLenErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_SendMinPktLenErr_LSB 0x1D +#define QIB_7322_ErrStatus_0_SendMinPktLenErr_MSB 0x1D +#define QIB_7322_ErrStatus_0_SendMinPktLenErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_RcvIBLostLinkErr_LSB 0x11 +#define QIB_7322_ErrStatus_0_RcvIBLostLinkErr_MSB 0x11 +#define QIB_7322_ErrStatus_0_RcvIBLostLinkErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_RcvHdrErr_LSB 0x10 +#define QIB_7322_ErrStatus_0_RcvHdrErr_MSB 0x10 +#define QIB_7322_ErrStatus_0_RcvHdrErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_RcvHdrLenErr_LSB 0xF +#define QIB_7322_ErrStatus_0_RcvHdrLenErr_MSB 0xF +#define QIB_7322_ErrStatus_0_RcvHdrLenErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_RcvBadTidErr_LSB 0xE +#define QIB_7322_ErrStatus_0_RcvBadTidErr_MSB 0xE +#define QIB_7322_ErrStatus_0_RcvBadTidErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_RcvBadVersionErr_LSB 0xB +#define QIB_7322_ErrStatus_0_RcvBadVersionErr_MSB 0xB +#define QIB_7322_ErrStatus_0_RcvBadVersionErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_RcvIBFlowErr_LSB 0xA +#define QIB_7322_ErrStatus_0_RcvIBFlowErr_MSB 0xA +#define QIB_7322_ErrStatus_0_RcvIBFlowErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_RcvEBPErr_LSB 0x9 +#define QIB_7322_ErrStatus_0_RcvEBPErr_MSB 0x9 +#define QIB_7322_ErrStatus_0_RcvEBPErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_RcvUnsupportedVLErr_LSB 0x8 +#define QIB_7322_ErrStatus_0_RcvUnsupportedVLErr_MSB 0x8 +#define QIB_7322_ErrStatus_0_RcvUnsupportedVLErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_RcvUnexpectedCharErr_LSB 0x7 +#define QIB_7322_ErrStatus_0_RcvUnexpectedCharErr_MSB 0x7 +#define QIB_7322_ErrStatus_0_RcvUnexpectedCharErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_RcvShortPktLenErr_LSB 0x6 +#define QIB_7322_ErrStatus_0_RcvShortPktLenErr_MSB 0x6 +#define QIB_7322_ErrStatus_0_RcvShortPktLenErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_RcvLongPktLenErr_LSB 0x5 +#define QIB_7322_ErrStatus_0_RcvLongPktLenErr_MSB 0x5 +#define QIB_7322_ErrStatus_0_RcvLongPktLenErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_RcvMaxPktLenErr_LSB 0x4 +#define QIB_7322_ErrStatus_0_RcvMaxPktLenErr_MSB 0x4 +#define QIB_7322_ErrStatus_0_RcvMaxPktLenErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_RcvMinPktLenErr_LSB 0x3 +#define QIB_7322_ErrStatus_0_RcvMinPktLenErr_MSB 0x3 +#define QIB_7322_ErrStatus_0_RcvMinPktLenErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_RcvICRCErr_LSB 0x2 +#define QIB_7322_ErrStatus_0_RcvICRCErr_MSB 0x2 +#define QIB_7322_ErrStatus_0_RcvICRCErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_RcvVCRCErr_LSB 0x1 +#define QIB_7322_ErrStatus_0_RcvVCRCErr_MSB 0x1 +#define QIB_7322_ErrStatus_0_RcvVCRCErr_RMASK 0x1 +#define QIB_7322_ErrStatus_0_RcvFormatErr_LSB 0x0 +#define QIB_7322_ErrStatus_0_RcvFormatErr_MSB 0x0 +#define QIB_7322_ErrStatus_0_RcvFormatErr_RMASK 0x1 + +#define QIB_7322_ErrClear_0_OFFS 0x1090 +#define QIB_7322_ErrClear_0_DEF 0x0000000000000000 +#define QIB_7322_ErrClear_0_IBStatusChangedClear_LSB 0x3A +#define QIB_7322_ErrClear_0_IBStatusChangedClear_MSB 0x3A +#define QIB_7322_ErrClear_0_IBStatusChangedClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SHeadersErrClear_LSB 0x39 +#define QIB_7322_ErrClear_0_SHeadersErrClear_MSB 0x39 +#define QIB_7322_ErrClear_0_SHeadersErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_VL15BufMisuseErrClear_LSB 0x36 +#define QIB_7322_ErrClear_0_VL15BufMisuseErrClear_MSB 0x36 +#define QIB_7322_ErrClear_0_VL15BufMisuseErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SDmaHaltErrClear_LSB 0x31 +#define QIB_7322_ErrClear_0_SDmaHaltErrClear_MSB 0x31 +#define QIB_7322_ErrClear_0_SDmaHaltErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SDmaDescAddrMisalignErrClear_LSB 0x30 +#define QIB_7322_ErrClear_0_SDmaDescAddrMisalignErrClear_MSB 0x30 +#define QIB_7322_ErrClear_0_SDmaDescAddrMisalignErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SDmaUnexpDataErrClear_LSB 0x2F +#define QIB_7322_ErrClear_0_SDmaUnexpDataErrClear_MSB 0x2F +#define QIB_7322_ErrClear_0_SDmaUnexpDataErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SDmaMissingDwErrClear_LSB 0x2E +#define QIB_7322_ErrClear_0_SDmaMissingDwErrClear_MSB 0x2E +#define QIB_7322_ErrClear_0_SDmaMissingDwErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SDmaDwEnErrClear_LSB 0x2D +#define QIB_7322_ErrClear_0_SDmaDwEnErrClear_MSB 0x2D +#define QIB_7322_ErrClear_0_SDmaDwEnErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SDmaRpyTagErrClear_LSB 0x2C +#define QIB_7322_ErrClear_0_SDmaRpyTagErrClear_MSB 0x2C +#define QIB_7322_ErrClear_0_SDmaRpyTagErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SDma1stDescErrClear_LSB 0x2B +#define QIB_7322_ErrClear_0_SDma1stDescErrClear_MSB 0x2B +#define QIB_7322_ErrClear_0_SDma1stDescErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SDmaBaseErrClear_LSB 0x2A +#define QIB_7322_ErrClear_0_SDmaBaseErrClear_MSB 0x2A +#define QIB_7322_ErrClear_0_SDmaBaseErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SDmaTailOutOfBoundErrClear_LSB 0x29 +#define QIB_7322_ErrClear_0_SDmaTailOutOfBoundErrClear_MSB 0x29 +#define QIB_7322_ErrClear_0_SDmaTailOutOfBoundErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SDmaOutOfBoundErrClear_LSB 0x28 +#define QIB_7322_ErrClear_0_SDmaOutOfBoundErrClear_MSB 0x28 +#define QIB_7322_ErrClear_0_SDmaOutOfBoundErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SDmaGenMismatchErrClear_LSB 0x27 +#define QIB_7322_ErrClear_0_SDmaGenMismatchErrClear_MSB 0x27 +#define QIB_7322_ErrClear_0_SDmaGenMismatchErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SendBufMisuseErrClear_LSB 0x26 +#define QIB_7322_ErrClear_0_SendBufMisuseErrClear_MSB 0x26 +#define QIB_7322_ErrClear_0_SendBufMisuseErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SendUnsupportedVLErrClear_LSB 0x25 +#define QIB_7322_ErrClear_0_SendUnsupportedVLErrClear_MSB 0x25 +#define QIB_7322_ErrClear_0_SendUnsupportedVLErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SendUnexpectedPktNumErrClear_LSB 0x24 +#define QIB_7322_ErrClear_0_SendUnexpectedPktNumErrClear_MSB 0x24 +#define QIB_7322_ErrClear_0_SendUnexpectedPktNumErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SendDroppedDataPktErrClear_LSB 0x22 +#define QIB_7322_ErrClear_0_SendDroppedDataPktErrClear_MSB 0x22 +#define QIB_7322_ErrClear_0_SendDroppedDataPktErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SendDroppedSmpPktErrClear_LSB 0x21 +#define QIB_7322_ErrClear_0_SendDroppedSmpPktErrClear_MSB 0x21 +#define QIB_7322_ErrClear_0_SendDroppedSmpPktErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SendPktLenErrClear_LSB 0x20 +#define QIB_7322_ErrClear_0_SendPktLenErrClear_MSB 0x20 +#define QIB_7322_ErrClear_0_SendPktLenErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SendUnderRunErrClear_LSB 0x1F +#define QIB_7322_ErrClear_0_SendUnderRunErrClear_MSB 0x1F +#define QIB_7322_ErrClear_0_SendUnderRunErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SendMaxPktLenErrClear_LSB 0x1E +#define QIB_7322_ErrClear_0_SendMaxPktLenErrClear_MSB 0x1E +#define QIB_7322_ErrClear_0_SendMaxPktLenErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_SendMinPktLenErrClear_LSB 0x1D +#define QIB_7322_ErrClear_0_SendMinPktLenErrClear_MSB 0x1D +#define QIB_7322_ErrClear_0_SendMinPktLenErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_RcvIBLostLinkErrClear_LSB 0x11 +#define QIB_7322_ErrClear_0_RcvIBLostLinkErrClear_MSB 0x11 +#define QIB_7322_ErrClear_0_RcvIBLostLinkErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_RcvHdrErrClear_LSB 0x10 +#define QIB_7322_ErrClear_0_RcvHdrErrClear_MSB 0x10 +#define QIB_7322_ErrClear_0_RcvHdrErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_RcvHdrLenErrClear_LSB 0xF +#define QIB_7322_ErrClear_0_RcvHdrLenErrClear_MSB 0xF +#define QIB_7322_ErrClear_0_RcvHdrLenErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_RcvBadTidErrClear_LSB 0xE +#define QIB_7322_ErrClear_0_RcvBadTidErrClear_MSB 0xE +#define QIB_7322_ErrClear_0_RcvBadTidErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_RcvBadVersionErrClear_LSB 0xB +#define QIB_7322_ErrClear_0_RcvBadVersionErrClear_MSB 0xB +#define QIB_7322_ErrClear_0_RcvBadVersionErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_RcvIBFlowErrClear_LSB 0xA +#define QIB_7322_ErrClear_0_RcvIBFlowErrClear_MSB 0xA +#define QIB_7322_ErrClear_0_RcvIBFlowErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_RcvEBPErrClear_LSB 0x9 +#define QIB_7322_ErrClear_0_RcvEBPErrClear_MSB 0x9 +#define QIB_7322_ErrClear_0_RcvEBPErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_RcvUnsupportedVLErrClear_LSB 0x8 +#define QIB_7322_ErrClear_0_RcvUnsupportedVLErrClear_MSB 0x8 +#define QIB_7322_ErrClear_0_RcvUnsupportedVLErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_RcvUnexpectedCharErrClear_LSB 0x7 +#define QIB_7322_ErrClear_0_RcvUnexpectedCharErrClear_MSB 0x7 +#define QIB_7322_ErrClear_0_RcvUnexpectedCharErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_RcvShortPktLenErrClear_LSB 0x6 +#define QIB_7322_ErrClear_0_RcvShortPktLenErrClear_MSB 0x6 +#define QIB_7322_ErrClear_0_RcvShortPktLenErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_RcvLongPktLenErrClear_LSB 0x5 +#define QIB_7322_ErrClear_0_RcvLongPktLenErrClear_MSB 0x5 +#define QIB_7322_ErrClear_0_RcvLongPktLenErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_RcvMaxPktLenErrClear_LSB 0x4 +#define QIB_7322_ErrClear_0_RcvMaxPktLenErrClear_MSB 0x4 +#define QIB_7322_ErrClear_0_RcvMaxPktLenErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_RcvMinPktLenErrClear_LSB 0x3 +#define QIB_7322_ErrClear_0_RcvMinPktLenErrClear_MSB 0x3 +#define QIB_7322_ErrClear_0_RcvMinPktLenErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_RcvICRCErrClear_LSB 0x2 +#define QIB_7322_ErrClear_0_RcvICRCErrClear_MSB 0x2 +#define QIB_7322_ErrClear_0_RcvICRCErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_RcvVCRCErrClear_LSB 0x1 +#define QIB_7322_ErrClear_0_RcvVCRCErrClear_MSB 0x1 +#define QIB_7322_ErrClear_0_RcvVCRCErrClear_RMASK 0x1 +#define QIB_7322_ErrClear_0_RcvFormatErrClear_LSB 0x0 +#define QIB_7322_ErrClear_0_RcvFormatErrClear_MSB 0x0 +#define QIB_7322_ErrClear_0_RcvFormatErrClear_RMASK 0x1 + +#define QIB_7322_TXEStatus_0_OFFS 0x10B8 +#define QIB_7322_TXEStatus_0_DEF 0x0000000XC00080FF +#define QIB_7322_TXEStatus_0_TXE_IBC_Idle_LSB 0x1F +#define QIB_7322_TXEStatus_0_TXE_IBC_Idle_MSB 0x1F +#define QIB_7322_TXEStatus_0_TXE_IBC_Idle_RMASK 0x1 +#define QIB_7322_TXEStatus_0_RmFifoEmpty_LSB 0x1E +#define QIB_7322_TXEStatus_0_RmFifoEmpty_MSB 0x1E +#define QIB_7322_TXEStatus_0_RmFifoEmpty_RMASK 0x1 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL15_LSB 0xF +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL15_MSB 0xF +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL15_RMASK 0x1 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL7_LSB 0x7 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL7_MSB 0x7 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL7_RMASK 0x1 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL6_LSB 0x6 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL6_MSB 0x6 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL6_RMASK 0x1 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL5_LSB 0x5 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL5_MSB 0x5 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL5_RMASK 0x1 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL4_LSB 0x4 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL4_MSB 0x4 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL4_RMASK 0x1 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL3_LSB 0x3 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL3_MSB 0x3 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL3_RMASK 0x1 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL2_LSB 0x2 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL2_MSB 0x2 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL2_RMASK 0x1 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL1_LSB 0x1 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL1_MSB 0x1 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL1_RMASK 0x1 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL0_LSB 0x0 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL0_MSB 0x0 +#define QIB_7322_TXEStatus_0_LaFifoEmpty_VL0_RMASK 0x1 + +#define QIB_7322_RcvCtrl_0_OFFS 0x1100 +#define QIB_7322_RcvCtrl_0_DEF 0x0000000000000000 +#define QIB_7322_RcvCtrl_0_RcvResetCredit_LSB 0x2A +#define QIB_7322_RcvCtrl_0_RcvResetCredit_MSB 0x2A +#define QIB_7322_RcvCtrl_0_RcvResetCredit_RMASK 0x1 +#define QIB_7322_RcvCtrl_0_RcvPartitionKeyDisable_LSB 0x29 +#define QIB_7322_RcvCtrl_0_RcvPartitionKeyDisable_MSB 0x29 +#define QIB_7322_RcvCtrl_0_RcvPartitionKeyDisable_RMASK 0x1 +#define QIB_7322_RcvCtrl_0_RcvQPMapEnable_LSB 0x28 +#define QIB_7322_RcvCtrl_0_RcvQPMapEnable_MSB 0x28 +#define QIB_7322_RcvCtrl_0_RcvQPMapEnable_RMASK 0x1 +#define QIB_7322_RcvCtrl_0_RcvIBPortEnable_LSB 0x27 +#define QIB_7322_RcvCtrl_0_RcvIBPortEnable_MSB 0x27 +#define QIB_7322_RcvCtrl_0_RcvIBPortEnable_RMASK 0x1 +#define QIB_7322_RcvCtrl_0_ContextEnableUser_LSB 0x2 +#define QIB_7322_RcvCtrl_0_ContextEnableUser_MSB 0x11 +#define QIB_7322_RcvCtrl_0_ContextEnableUser_RMASK 0xFFFF +#define QIB_7322_RcvCtrl_0_ContextEnableKernel_LSB 0x0 +#define QIB_7322_RcvCtrl_0_ContextEnableKernel_MSB 0x0 +#define QIB_7322_RcvCtrl_0_ContextEnableKernel_RMASK 0x1 + +#define QIB_7322_RcvBTHQP_0_OFFS 0x1108 +#define QIB_7322_RcvBTHQP_0_DEF 0x0000000000000000 +#define QIB_7322_RcvBTHQP_0_RcvBTHQP_LSB 0x0 +#define QIB_7322_RcvBTHQP_0_RcvBTHQP_MSB 0x17 +#define QIB_7322_RcvBTHQP_0_RcvBTHQP_RMASK 0xFFFFFF + +#define QIB_7322_RcvQPMapTableA_0_OFFS 0x1110 +#define QIB_7322_RcvQPMapTableA_0_DEF 0x0000000000000000 +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext5_LSB 0x19 +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext5_MSB 0x1D +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext5_RMASK 0x1F +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext4_LSB 0x14 +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext4_MSB 0x18 +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext4_RMASK 0x1F +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext3_LSB 0xF +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext3_MSB 0x13 +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext3_RMASK 0x1F +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext2_LSB 0xA +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext2_MSB 0xE +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext2_RMASK 0x1F +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext1_LSB 0x5 +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext1_MSB 0x9 +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext1_RMASK 0x1F +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext0_LSB 0x0 +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext0_MSB 0x4 +#define QIB_7322_RcvQPMapTableA_0_RcvQPMapContext0_RMASK 0x1F + +#define QIB_7322_RcvQPMapTableB_0_OFFS 0x1118 +#define QIB_7322_RcvQPMapTableB_0_DEF 0x0000000000000000 +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext11_LSB 0x19 +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext11_MSB 0x1D +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext11_RMASK 0x1F +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext10_LSB 0x14 +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext10_MSB 0x18 +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext10_RMASK 0x1F +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext9_LSB 0xF +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext9_MSB 0x13 +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext9_RMASK 0x1F +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext8_LSB 0xA +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext8_MSB 0xE +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext8_RMASK 0x1F +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext7_LSB 0x5 +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext7_MSB 0x9 +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext7_RMASK 0x1F +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext6_LSB 0x0 +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext6_MSB 0x4 +#define QIB_7322_RcvQPMapTableB_0_RcvQPMapContext6_RMASK 0x1F + +#define QIB_7322_RcvQPMapTableC_0_OFFS 0x1120 +#define QIB_7322_RcvQPMapTableC_0_DEF 0x0000000000000000 +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext17_LSB 0x19 +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext17_MSB 0x1D +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext17_RMASK 0x1F +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext16_LSB 0x14 +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext16_MSB 0x18 +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext16_RMASK 0x1F +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext15_LSB 0xF +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext15_MSB 0x13 +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext15_RMASK 0x1F +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext14_LSB 0xA +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext14_MSB 0xE +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext14_RMASK 0x1F +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext13_LSB 0x5 +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext13_MSB 0x9 +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext13_RMASK 0x1F +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext12_LSB 0x0 +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext12_MSB 0x4 +#define QIB_7322_RcvQPMapTableC_0_RcvQPMapContext12_RMASK 0x1F + +#define QIB_7322_RcvQPMapTableD_0_OFFS 0x1128 +#define QIB_7322_RcvQPMapTableD_0_DEF 0x0000000000000000 +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext23_LSB 0x19 +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext23_MSB 0x1D +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext23_RMASK 0x1F +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext22_LSB 0x14 +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext22_MSB 0x18 +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext22_RMASK 0x1F +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext21_LSB 0xF +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext21_MSB 0x13 +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext21_RMASK 0x1F +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext20_LSB 0xA +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext20_MSB 0xE +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext20_RMASK 0x1F +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext19_LSB 0x5 +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext19_MSB 0x9 +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext19_RMASK 0x1F +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext18_LSB 0x0 +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext18_MSB 0x4 +#define QIB_7322_RcvQPMapTableD_0_RcvQPMapContext18_RMASK 0x1F + +#define QIB_7322_RcvQPMapTableE_0_OFFS 0x1130 +#define QIB_7322_RcvQPMapTableE_0_DEF 0x0000000000000000 +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext29_LSB 0x19 +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext29_MSB 0x1D +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext29_RMASK 0x1F +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext28_LSB 0x14 +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext28_MSB 0x18 +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext28_RMASK 0x1F +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext27_LSB 0xF +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext27_MSB 0x13 +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext27_RMASK 0x1F +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext26_LSB 0xA +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext26_MSB 0xE +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext26_RMASK 0x1F +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext25_LSB 0x5 +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext25_MSB 0x9 +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext25_RMASK 0x1F +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext24_LSB 0x0 +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext24_MSB 0x4 +#define QIB_7322_RcvQPMapTableE_0_RcvQPMapContext24_RMASK 0x1F + +#define QIB_7322_RcvQPMapTableF_0_OFFS 0x1138 +#define QIB_7322_RcvQPMapTableF_0_DEF 0x0000000000000000 +#define QIB_7322_RcvQPMapTableF_0_RcvQPMapContext31_LSB 0x5 +#define QIB_7322_RcvQPMapTableF_0_RcvQPMapContext31_MSB 0x9 +#define QIB_7322_RcvQPMapTableF_0_RcvQPMapContext31_RMASK 0x1F +#define QIB_7322_RcvQPMapTableF_0_RcvQPMapContext30_LSB 0x0 +#define QIB_7322_RcvQPMapTableF_0_RcvQPMapContext30_MSB 0x4 +#define QIB_7322_RcvQPMapTableF_0_RcvQPMapContext30_RMASK 0x1F + +#define QIB_7322_PSStat_0_OFFS 0x1140 +#define QIB_7322_PSStat_0_DEF 0x0000000000000000 + +#define QIB_7322_PSStart_0_OFFS 0x1148 +#define QIB_7322_PSStart_0_DEF 0x0000000000000000 + +#define QIB_7322_PSInterval_0_OFFS 0x1150 +#define QIB_7322_PSInterval_0_DEF 0x0000000000000000 + +#define QIB_7322_RcvStatus_0_OFFS 0x1160 +#define QIB_7322_RcvStatus_0_DEF 0x0000000000000000 +#define QIB_7322_RcvStatus_0_DmaeqBlockingContext_LSB 0x1 +#define QIB_7322_RcvStatus_0_DmaeqBlockingContext_MSB 0x5 +#define QIB_7322_RcvStatus_0_DmaeqBlockingContext_RMASK 0x1F +#define QIB_7322_RcvStatus_0_RxPktInProgress_LSB 0x0 +#define QIB_7322_RcvStatus_0_RxPktInProgress_MSB 0x0 +#define QIB_7322_RcvStatus_0_RxPktInProgress_RMASK 0x1 + +#define QIB_7322_RcvPartitionKey_0_OFFS 0x1168 +#define QIB_7322_RcvPartitionKey_0_DEF 0x0000000000000000 + +#define QIB_7322_RcvQPMulticastContext_0_OFFS 0x1170 +#define QIB_7322_RcvQPMulticastContext_0_DEF 0x0000000000000000 +#define QIB_7322_RcvQPMulticastContext_0_RcvQpMcContext_LSB 0x0 +#define QIB_7322_RcvQPMulticastContext_0_RcvQpMcContext_MSB 0x4 +#define QIB_7322_RcvQPMulticastContext_0_RcvQpMcContext_RMASK 0x1F + +#define QIB_7322_RcvPktLEDCnt_0_OFFS 0x1178 +#define QIB_7322_RcvPktLEDCnt_0_DEF 0x0000000000000000 +#define QIB_7322_RcvPktLEDCnt_0_ONperiod_LSB 0x20 +#define QIB_7322_RcvPktLEDCnt_0_ONperiod_MSB 0x3F +#define QIB_7322_RcvPktLEDCnt_0_ONperiod_RMASK 0xFFFFFFFF +#define QIB_7322_RcvPktLEDCnt_0_OFFperiod_LSB 0x0 +#define QIB_7322_RcvPktLEDCnt_0_OFFperiod_MSB 0x1F +#define QIB_7322_RcvPktLEDCnt_0_OFFperiod_RMASK 0xFFFFFFFF + +#define QIB_7322_SendDmaIdleCnt_0_OFFS 0x1180 +#define QIB_7322_SendDmaIdleCnt_0_DEF 0x0000000000000000 +#define QIB_7322_SendDmaIdleCnt_0_SendDmaIdleCnt_LSB 0x0 +#define QIB_7322_SendDmaIdleCnt_0_SendDmaIdleCnt_MSB 0xF +#define QIB_7322_SendDmaIdleCnt_0_SendDmaIdleCnt_RMASK 0xFFFF + +#define QIB_7322_SendDmaReloadCnt_0_OFFS 0x1188 +#define QIB_7322_SendDmaReloadCnt_0_DEF 0x0000000000000000 +#define QIB_7322_SendDmaReloadCnt_0_SendDmaReloadCnt_LSB 0x0 +#define QIB_7322_SendDmaReloadCnt_0_SendDmaReloadCnt_MSB 0xF +#define QIB_7322_SendDmaReloadCnt_0_SendDmaReloadCnt_RMASK 0xFFFF + +#define QIB_7322_SendDmaDescCnt_0_OFFS 0x1190 +#define QIB_7322_SendDmaDescCnt_0_DEF 0x0000000000000000 +#define QIB_7322_SendDmaDescCnt_0_SendDmaDescCnt_LSB 0x0 +#define QIB_7322_SendDmaDescCnt_0_SendDmaDescCnt_MSB 0xF +#define QIB_7322_SendDmaDescCnt_0_SendDmaDescCnt_RMASK 0xFFFF + +#define QIB_7322_SendCtrl_0_OFFS 0x11C0 +#define QIB_7322_SendCtrl_0_DEF 0x0000000000000000 +#define QIB_7322_SendCtrl_0_IBVLArbiterEn_LSB 0xF +#define QIB_7322_SendCtrl_0_IBVLArbiterEn_MSB 0xF +#define QIB_7322_SendCtrl_0_IBVLArbiterEn_RMASK 0x1 +#define QIB_7322_SendCtrl_0_TxeDrainRmFifo_LSB 0xE +#define QIB_7322_SendCtrl_0_TxeDrainRmFifo_MSB 0xE +#define QIB_7322_SendCtrl_0_TxeDrainRmFifo_RMASK 0x1 +#define QIB_7322_SendCtrl_0_TxeDrainLaFifo_LSB 0xD +#define QIB_7322_SendCtrl_0_TxeDrainLaFifo_MSB 0xD +#define QIB_7322_SendCtrl_0_TxeDrainLaFifo_RMASK 0x1 +#define QIB_7322_SendCtrl_0_SDmaHalt_LSB 0xC +#define QIB_7322_SendCtrl_0_SDmaHalt_MSB 0xC +#define QIB_7322_SendCtrl_0_SDmaHalt_RMASK 0x1 +#define QIB_7322_SendCtrl_0_SDmaEnable_LSB 0xB +#define QIB_7322_SendCtrl_0_SDmaEnable_MSB 0xB +#define QIB_7322_SendCtrl_0_SDmaEnable_RMASK 0x1 +#define QIB_7322_SendCtrl_0_SDmaSingleDescriptor_LSB 0xA +#define QIB_7322_SendCtrl_0_SDmaSingleDescriptor_MSB 0xA +#define QIB_7322_SendCtrl_0_SDmaSingleDescriptor_RMASK 0x1 +#define QIB_7322_SendCtrl_0_SDmaIntEnable_LSB 0x9 +#define QIB_7322_SendCtrl_0_SDmaIntEnable_MSB 0x9 +#define QIB_7322_SendCtrl_0_SDmaIntEnable_RMASK 0x1 +#define QIB_7322_SendCtrl_0_SDmaCleanup_LSB 0x8 +#define QIB_7322_SendCtrl_0_SDmaCleanup_MSB 0x8 +#define QIB_7322_SendCtrl_0_SDmaCleanup_RMASK 0x1 +#define QIB_7322_SendCtrl_0_ForceCreditUpToDate_LSB 0x7 +#define QIB_7322_SendCtrl_0_ForceCreditUpToDate_MSB 0x7 +#define QIB_7322_SendCtrl_0_ForceCreditUpToDate_RMASK 0x1 +#define QIB_7322_SendCtrl_0_SendEnable_LSB 0x3 +#define QIB_7322_SendCtrl_0_SendEnable_MSB 0x3 +#define QIB_7322_SendCtrl_0_SendEnable_RMASK 0x1 +#define QIB_7322_SendCtrl_0_TxeBypassIbc_LSB 0x1 +#define QIB_7322_SendCtrl_0_TxeBypassIbc_MSB 0x1 +#define QIB_7322_SendCtrl_0_TxeBypassIbc_RMASK 0x1 +#define QIB_7322_SendCtrl_0_TxeAbortIbc_LSB 0x0 +#define QIB_7322_SendCtrl_0_TxeAbortIbc_MSB 0x0 +#define QIB_7322_SendCtrl_0_TxeAbortIbc_RMASK 0x1 + +#define QIB_7322_SendDmaBase_0_OFFS 0x11F8 +#define QIB_7322_SendDmaBase_0_DEF 0x0000000000000000 +#define QIB_7322_SendDmaBase_0_SendDmaBase_LSB 0x0 +#define QIB_7322_SendDmaBase_0_SendDmaBase_MSB 0x2F +#define QIB_7322_SendDmaBase_0_SendDmaBase_RMASK 0xFFFFFFFFFFFF + +#define QIB_7322_SendDmaLenGen_0_OFFS 0x1200 +#define QIB_7322_SendDmaLenGen_0_DEF 0x0000000000000000 +#define QIB_7322_SendDmaLenGen_0_Generation_LSB 0x10 +#define QIB_7322_SendDmaLenGen_0_Generation_MSB 0x12 +#define QIB_7322_SendDmaLenGen_0_Generation_RMASK 0x7 +#define QIB_7322_SendDmaLenGen_0_Length_LSB 0x0 +#define QIB_7322_SendDmaLenGen_0_Length_MSB 0xF +#define QIB_7322_SendDmaLenGen_0_Length_RMASK 0xFFFF + +#define QIB_7322_SendDmaTail_0_OFFS 0x1208 +#define QIB_7322_SendDmaTail_0_DEF 0x0000000000000000 +#define QIB_7322_SendDmaTail_0_SendDmaTail_LSB 0x0 +#define QIB_7322_SendDmaTail_0_SendDmaTail_MSB 0xF +#define QIB_7322_SendDmaTail_0_SendDmaTail_RMASK 0xFFFF + +#define QIB_7322_SendDmaHead_0_OFFS 0x1210 +#define QIB_7322_SendDmaHead_0_DEF 0x0000000000000000 +#define QIB_7322_SendDmaHead_0_InternalSendDmaHead_LSB 0x20 +#define QIB_7322_SendDmaHead_0_InternalSendDmaHead_MSB 0x2F +#define QIB_7322_SendDmaHead_0_InternalSendDmaHead_RMASK 0xFFFF +#define QIB_7322_SendDmaHead_0_SendDmaHead_LSB 0x0 +#define QIB_7322_SendDmaHead_0_SendDmaHead_MSB 0xF +#define QIB_7322_SendDmaHead_0_SendDmaHead_RMASK 0xFFFF + +#define QIB_7322_SendDmaHeadAddr_0_OFFS 0x1218 +#define QIB_7322_SendDmaHeadAddr_0_DEF 0x0000000000000000 +#define QIB_7322_SendDmaHeadAddr_0_SendDmaHeadAddr_LSB 0x0 +#define QIB_7322_SendDmaHeadAddr_0_SendDmaHeadAddr_MSB 0x2F +#define QIB_7322_SendDmaHeadAddr_0_SendDmaHeadAddr_RMASK 0xFFFFFFFFFFFF + +#define QIB_7322_SendDmaBufMask0_0_OFFS 0x1220 +#define QIB_7322_SendDmaBufMask0_0_DEF 0x0000000000000000 +#define QIB_7322_SendDmaBufMask0_0_BufMask_63_0_LSB 0x0 +#define QIB_7322_SendDmaBufMask0_0_BufMask_63_0_MSB 0x3F +#define QIB_7322_SendDmaBufMask0_0_BufMask_63_0_RMASK 0x0 + +#define QIB_7322_SendDmaStatus_0_OFFS 0x1238 +#define QIB_7322_SendDmaStatus_0_DEF 0x0000000042000000 +#define QIB_7322_SendDmaStatus_0_ScoreBoardDrainInProg_LSB 0x3F +#define QIB_7322_SendDmaStatus_0_ScoreBoardDrainInProg_MSB 0x3F +#define QIB_7322_SendDmaStatus_0_ScoreBoardDrainInProg_RMASK 0x1 +#define QIB_7322_SendDmaStatus_0_HaltInProg_LSB 0x3E +#define QIB_7322_SendDmaStatus_0_HaltInProg_MSB 0x3E +#define QIB_7322_SendDmaStatus_0_HaltInProg_RMASK 0x1 +#define QIB_7322_SendDmaStatus_0_InternalSDmaHalt_LSB 0x3D +#define QIB_7322_SendDmaStatus_0_InternalSDmaHalt_MSB 0x3D +#define QIB_7322_SendDmaStatus_0_InternalSDmaHalt_RMASK 0x1 +#define QIB_7322_SendDmaStatus_0_ScbDescIndex_13_0_LSB 0x2F +#define QIB_7322_SendDmaStatus_0_ScbDescIndex_13_0_MSB 0x3C +#define QIB_7322_SendDmaStatus_0_ScbDescIndex_13_0_RMASK 0x3FFF +#define QIB_7322_SendDmaStatus_0_RpyLowAddr_6_0_LSB 0x28 +#define QIB_7322_SendDmaStatus_0_RpyLowAddr_6_0_MSB 0x2E +#define QIB_7322_SendDmaStatus_0_RpyLowAddr_6_0_RMASK 0x7F +#define QIB_7322_SendDmaStatus_0_RpyTag_7_0_LSB 0x20 +#define QIB_7322_SendDmaStatus_0_RpyTag_7_0_MSB 0x27 +#define QIB_7322_SendDmaStatus_0_RpyTag_7_0_RMASK 0xFF +#define QIB_7322_SendDmaStatus_0_ScbFull_LSB 0x1F +#define QIB_7322_SendDmaStatus_0_ScbFull_MSB 0x1F +#define QIB_7322_SendDmaStatus_0_ScbFull_RMASK 0x1 +#define QIB_7322_SendDmaStatus_0_ScbEmpty_LSB 0x1E +#define QIB_7322_SendDmaStatus_0_ScbEmpty_MSB 0x1E +#define QIB_7322_SendDmaStatus_0_ScbEmpty_RMASK 0x1 +#define QIB_7322_SendDmaStatus_0_ScbEntryValid_LSB 0x1D +#define QIB_7322_SendDmaStatus_0_ScbEntryValid_MSB 0x1D +#define QIB_7322_SendDmaStatus_0_ScbEntryValid_RMASK 0x1 +#define QIB_7322_SendDmaStatus_0_ScbFetchDescFlag_LSB 0x1C +#define QIB_7322_SendDmaStatus_0_ScbFetchDescFlag_MSB 0x1C +#define QIB_7322_SendDmaStatus_0_ScbFetchDescFlag_RMASK 0x1 +#define QIB_7322_SendDmaStatus_0_SplFifoReadyToGo_LSB 0x1B +#define QIB_7322_SendDmaStatus_0_SplFifoReadyToGo_MSB 0x1B +#define QIB_7322_SendDmaStatus_0_SplFifoReadyToGo_RMASK 0x1 +#define QIB_7322_SendDmaStatus_0_SplFifoDisarmed_LSB 0x1A +#define QIB_7322_SendDmaStatus_0_SplFifoDisarmed_MSB 0x1A +#define QIB_7322_SendDmaStatus_0_SplFifoDisarmed_RMASK 0x1 +#define QIB_7322_SendDmaStatus_0_SplFifoEmpty_LSB 0x19 +#define QIB_7322_SendDmaStatus_0_SplFifoEmpty_MSB 0x19 +#define QIB_7322_SendDmaStatus_0_SplFifoEmpty_RMASK 0x1 +#define QIB_7322_SendDmaStatus_0_SplFifoFull_LSB 0x18 +#define QIB_7322_SendDmaStatus_0_SplFifoFull_MSB 0x18 +#define QIB_7322_SendDmaStatus_0_SplFifoFull_RMASK 0x1 +#define QIB_7322_SendDmaStatus_0_SplFifoBufNum_LSB 0x10 +#define QIB_7322_SendDmaStatus_0_SplFifoBufNum_MSB 0x17 +#define QIB_7322_SendDmaStatus_0_SplFifoBufNum_RMASK 0xFF +#define QIB_7322_SendDmaStatus_0_SplFifoDescIndex_LSB 0x0 +#define QIB_7322_SendDmaStatus_0_SplFifoDescIndex_MSB 0xF +#define QIB_7322_SendDmaStatus_0_SplFifoDescIndex_RMASK 0xFFFF + +#define QIB_7322_SendDmaPriorityThld_0_OFFS 0x1258 +#define QIB_7322_SendDmaPriorityThld_0_DEF 0x0000000000000000 +#define QIB_7322_SendDmaPriorityThld_0_PriorityThreshold_LSB 0x0 +#define QIB_7322_SendDmaPriorityThld_0_PriorityThreshold_MSB 0x3 +#define QIB_7322_SendDmaPriorityThld_0_PriorityThreshold_RMASK 0xF + +#define QIB_7322_SendHdrErrSymptom_0_OFFS 0x1260 +#define QIB_7322_SendHdrErrSymptom_0_DEF 0x0000000000000000 +#define QIB_7322_SendHdrErrSymptom_0_NonKeyPacket_LSB 0x6 +#define QIB_7322_SendHdrErrSymptom_0_NonKeyPacket_MSB 0x6 +#define QIB_7322_SendHdrErrSymptom_0_NonKeyPacket_RMASK 0x1 +#define QIB_7322_SendHdrErrSymptom_0_GRHFail_LSB 0x5 +#define QIB_7322_SendHdrErrSymptom_0_GRHFail_MSB 0x5 +#define QIB_7322_SendHdrErrSymptom_0_GRHFail_RMASK 0x1 +#define QIB_7322_SendHdrErrSymptom_0_PkeyFail_LSB 0x4 +#define QIB_7322_SendHdrErrSymptom_0_PkeyFail_MSB 0x4 +#define QIB_7322_SendHdrErrSymptom_0_PkeyFail_RMASK 0x1 +#define QIB_7322_SendHdrErrSymptom_0_QPFail_LSB 0x3 +#define QIB_7322_SendHdrErrSymptom_0_QPFail_MSB 0x3 +#define QIB_7322_SendHdrErrSymptom_0_QPFail_RMASK 0x1 +#define QIB_7322_SendHdrErrSymptom_0_SLIDFail_LSB 0x2 +#define QIB_7322_SendHdrErrSymptom_0_SLIDFail_MSB 0x2 +#define QIB_7322_SendHdrErrSymptom_0_SLIDFail_RMASK 0x1 +#define QIB_7322_SendHdrErrSymptom_0_RawIPV6_LSB 0x1 +#define QIB_7322_SendHdrErrSymptom_0_RawIPV6_MSB 0x1 +#define QIB_7322_SendHdrErrSymptom_0_RawIPV6_RMASK 0x1 +#define QIB_7322_SendHdrErrSymptom_0_PacketTooSmall_LSB 0x0 +#define QIB_7322_SendHdrErrSymptom_0_PacketTooSmall_MSB 0x0 +#define QIB_7322_SendHdrErrSymptom_0_PacketTooSmall_RMASK 0x1 + +#define QIB_7322_RxCreditVL0_0_OFFS 0x1280 +#define QIB_7322_RxCreditVL0_0_DEF 0x0000000000000000 +#define QIB_7322_RxCreditVL0_0_RxBufrConsumedVL_LSB 0x10 +#define QIB_7322_RxCreditVL0_0_RxBufrConsumedVL_MSB 0x1B +#define QIB_7322_RxCreditVL0_0_RxBufrConsumedVL_RMASK 0xFFF +#define QIB_7322_RxCreditVL0_0_RxMaxCreditVL_LSB 0x0 +#define QIB_7322_RxCreditVL0_0_RxMaxCreditVL_MSB 0xB +#define QIB_7322_RxCreditVL0_0_RxMaxCreditVL_RMASK 0xFFF + +#define QIB_7322_SendDmaBufUsed0_0_OFFS 0x1480 +#define QIB_7322_SendDmaBufUsed0_0_DEF 0x0000000000000000 +#define QIB_7322_SendDmaBufUsed0_0_BufUsed_63_0_LSB 0x0 +#define QIB_7322_SendDmaBufUsed0_0_BufUsed_63_0_MSB 0x3F +#define QIB_7322_SendDmaBufUsed0_0_BufUsed_63_0_RMASK 0x0 + +#define QIB_7322_SendCheckControl_0_OFFS 0x14A8 +#define QIB_7322_SendCheckControl_0_DEF 0x0000000000000000 +#define QIB_7322_SendCheckControl_0_PKey_En_LSB 0x4 +#define QIB_7322_SendCheckControl_0_PKey_En_MSB 0x4 +#define QIB_7322_SendCheckControl_0_PKey_En_RMASK 0x1 +#define QIB_7322_SendCheckControl_0_BTHQP_En_LSB 0x3 +#define QIB_7322_SendCheckControl_0_BTHQP_En_MSB 0x3 +#define QIB_7322_SendCheckControl_0_BTHQP_En_RMASK 0x1 +#define QIB_7322_SendCheckControl_0_SLID_En_LSB 0x2 +#define QIB_7322_SendCheckControl_0_SLID_En_MSB 0x2 +#define QIB_7322_SendCheckControl_0_SLID_En_RMASK 0x1 +#define QIB_7322_SendCheckControl_0_RawIPV6_En_LSB 0x1 +#define QIB_7322_SendCheckControl_0_RawIPV6_En_MSB 0x1 +#define QIB_7322_SendCheckControl_0_RawIPV6_En_RMASK 0x1 +#define QIB_7322_SendCheckControl_0_PacketTooSmall_En_LSB 0x0 +#define QIB_7322_SendCheckControl_0_PacketTooSmall_En_MSB 0x0 +#define QIB_7322_SendCheckControl_0_PacketTooSmall_En_RMASK 0x1 + +#define QIB_7322_SendIBSLIDMask_0_OFFS 0x14B0 +#define QIB_7322_SendIBSLIDMask_0_DEF 0x0000000000000000 +#define QIB_7322_SendIBSLIDMask_0_SendIBSLIDMask_15_0_LSB 0x0 +#define QIB_7322_SendIBSLIDMask_0_SendIBSLIDMask_15_0_MSB 0xF +#define QIB_7322_SendIBSLIDMask_0_SendIBSLIDMask_15_0_RMASK 0xFFFF + +#define QIB_7322_SendIBSLIDAssign_0_OFFS 0x14B8 +#define QIB_7322_SendIBSLIDAssign_0_DEF 0x0000000000000000 +#define QIB_7322_SendIBSLIDAssign_0_SendIBSLIDAssign_15_0_LSB 0x0 +#define QIB_7322_SendIBSLIDAssign_0_SendIBSLIDAssign_15_0_MSB 0xF +#define QIB_7322_SendIBSLIDAssign_0_SendIBSLIDAssign_15_0_RMASK 0xFFFF + +#define QIB_7322_IBCStatusA_0_OFFS 0x1540 +#define QIB_7322_IBCStatusA_0_DEF 0x0000000000000X02 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL7_LSB 0x27 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL7_MSB 0x27 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL7_RMASK 0x1 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL6_LSB 0x26 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL6_MSB 0x26 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL6_RMASK 0x1 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL5_LSB 0x25 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL5_MSB 0x25 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL5_RMASK 0x1 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL4_LSB 0x24 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL4_MSB 0x24 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL4_RMASK 0x1 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL3_LSB 0x23 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL3_MSB 0x23 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL3_RMASK 0x1 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL2_LSB 0x22 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL2_MSB 0x22 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL2_RMASK 0x1 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL1_LSB 0x21 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL1_MSB 0x21 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL1_RMASK 0x1 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL0_LSB 0x20 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL0_MSB 0x20 +#define QIB_7322_IBCStatusA_0_TxCreditOk_VL0_RMASK 0x1 +#define QIB_7322_IBCStatusA_0_TxReady_LSB 0x1E +#define QIB_7322_IBCStatusA_0_TxReady_MSB 0x1E +#define QIB_7322_IBCStatusA_0_TxReady_RMASK 0x1 +#define QIB_7322_IBCStatusA_0_LinkSpeedQDR_LSB 0x1D +#define QIB_7322_IBCStatusA_0_LinkSpeedQDR_MSB 0x1D +#define QIB_7322_IBCStatusA_0_LinkSpeedQDR_RMASK 0x1 +#define QIB_7322_IBCStatusA_0_ScrambleCapRemote_LSB 0xF +#define QIB_7322_IBCStatusA_0_ScrambleCapRemote_MSB 0xF +#define QIB_7322_IBCStatusA_0_ScrambleCapRemote_RMASK 0x1 +#define QIB_7322_IBCStatusA_0_ScrambleEn_LSB 0xE +#define QIB_7322_IBCStatusA_0_ScrambleEn_MSB 0xE +#define QIB_7322_IBCStatusA_0_ScrambleEn_RMASK 0x1 +#define QIB_7322_IBCStatusA_0_IBTxLaneReversed_LSB 0xD +#define QIB_7322_IBCStatusA_0_IBTxLaneReversed_MSB 0xD +#define QIB_7322_IBCStatusA_0_IBTxLaneReversed_RMASK 0x1 +#define QIB_7322_IBCStatusA_0_IBRxLaneReversed_LSB 0xC +#define QIB_7322_IBCStatusA_0_IBRxLaneReversed_MSB 0xC +#define QIB_7322_IBCStatusA_0_IBRxLaneReversed_RMASK 0x1 +#define QIB_7322_IBCStatusA_0_DDS_RXEQ_FAIL_LSB 0xA +#define QIB_7322_IBCStatusA_0_DDS_RXEQ_FAIL_MSB 0xA +#define QIB_7322_IBCStatusA_0_DDS_RXEQ_FAIL_RMASK 0x1 +#define QIB_7322_IBCStatusA_0_LinkWidthActive_LSB 0x9 +#define QIB_7322_IBCStatusA_0_LinkWidthActive_MSB 0x9 +#define QIB_7322_IBCStatusA_0_LinkWidthActive_RMASK 0x1 +#define QIB_7322_IBCStatusA_0_LinkSpeedActive_LSB 0x8 +#define QIB_7322_IBCStatusA_0_LinkSpeedActive_MSB 0x8 +#define QIB_7322_IBCStatusA_0_LinkSpeedActive_RMASK 0x1 +#define QIB_7322_IBCStatusA_0_LinkState_LSB 0x5 +#define QIB_7322_IBCStatusA_0_LinkState_MSB 0x7 +#define QIB_7322_IBCStatusA_0_LinkState_RMASK 0x7 +#define QIB_7322_IBCStatusA_0_LinkTrainingState_LSB 0x0 +#define QIB_7322_IBCStatusA_0_LinkTrainingState_MSB 0x4 +#define QIB_7322_IBCStatusA_0_LinkTrainingState_RMASK 0x1F + +#define QIB_7322_IBCStatusB_0_OFFS 0x1548 +#define QIB_7322_IBCStatusB_0_DEF 0x00000000XXXXXXXX +#define QIB_7322_IBCStatusB_0_ibsd_adaptation_timer_debug_LSB 0x27 +#define QIB_7322_IBCStatusB_0_ibsd_adaptation_timer_debug_MSB 0x27 +#define QIB_7322_IBCStatusB_0_ibsd_adaptation_timer_debug_RMASK 0x1 +#define QIB_7322_IBCStatusB_0_ibsd_adaptation_timer_reached_threshold_LSB 0x26 +#define QIB_7322_IBCStatusB_0_ibsd_adaptation_timer_reached_threshold_MSB 0x26 +#define QIB_7322_IBCStatusB_0_ibsd_adaptation_timer_reached_threshold_RMASK 0x1 +#define QIB_7322_IBCStatusB_0_ibsd_adaptation_timer_started_LSB 0x25 +#define QIB_7322_IBCStatusB_0_ibsd_adaptation_timer_started_MSB 0x25 +#define QIB_7322_IBCStatusB_0_ibsd_adaptation_timer_started_RMASK 0x1 +#define QIB_7322_IBCStatusB_0_heartbeat_timed_out_LSB 0x24 +#define QIB_7322_IBCStatusB_0_heartbeat_timed_out_MSB 0x24 +#define QIB_7322_IBCStatusB_0_heartbeat_timed_out_RMASK 0x1 +#define QIB_7322_IBCStatusB_0_heartbeat_crosstalk_LSB 0x20 +#define QIB_7322_IBCStatusB_0_heartbeat_crosstalk_MSB 0x23 +#define QIB_7322_IBCStatusB_0_heartbeat_crosstalk_RMASK 0xF +#define QIB_7322_IBCStatusB_0_RxEqLocalDevice_LSB 0x1E +#define QIB_7322_IBCStatusB_0_RxEqLocalDevice_MSB 0x1F +#define QIB_7322_IBCStatusB_0_RxEqLocalDevice_RMASK 0x3 +#define QIB_7322_IBCStatusB_0_ReqDDSLocalFromRmt_LSB 0x1A +#define QIB_7322_IBCStatusB_0_ReqDDSLocalFromRmt_MSB 0x1D +#define QIB_7322_IBCStatusB_0_ReqDDSLocalFromRmt_RMASK 0xF +#define QIB_7322_IBCStatusB_0_LinkRoundTripLatency_LSB 0x0 +#define QIB_7322_IBCStatusB_0_LinkRoundTripLatency_MSB 0x19 +#define QIB_7322_IBCStatusB_0_LinkRoundTripLatency_RMASK 0x3FFFFFF + +#define QIB_7322_IBCCtrlA_0_OFFS 0x1560 +#define QIB_7322_IBCCtrlA_0_DEF 0x0000000000000000 +#define QIB_7322_IBCCtrlA_0_Loopback_LSB 0x3F +#define QIB_7322_IBCCtrlA_0_Loopback_MSB 0x3F +#define QIB_7322_IBCCtrlA_0_Loopback_RMASK 0x1 +#define QIB_7322_IBCCtrlA_0_LinkDownDefaultState_LSB 0x3E +#define QIB_7322_IBCCtrlA_0_LinkDownDefaultState_MSB 0x3E +#define QIB_7322_IBCCtrlA_0_LinkDownDefaultState_RMASK 0x1 +#define QIB_7322_IBCCtrlA_0_IBLinkEn_LSB 0x3D +#define QIB_7322_IBCCtrlA_0_IBLinkEn_MSB 0x3D +#define QIB_7322_IBCCtrlA_0_IBLinkEn_RMASK 0x1 +#define QIB_7322_IBCCtrlA_0_IBStatIntReductionEn_LSB 0x3C +#define QIB_7322_IBCCtrlA_0_IBStatIntReductionEn_MSB 0x3C +#define QIB_7322_IBCCtrlA_0_IBStatIntReductionEn_RMASK 0x1 +#define QIB_7322_IBCCtrlA_0_NumVLane_LSB 0x30 +#define QIB_7322_IBCCtrlA_0_NumVLane_MSB 0x32 +#define QIB_7322_IBCCtrlA_0_NumVLane_RMASK 0x7 +#define QIB_7322_IBCCtrlA_0_OverrunThreshold_LSB 0x24 +#define QIB_7322_IBCCtrlA_0_OverrunThreshold_MSB 0x27 +#define QIB_7322_IBCCtrlA_0_OverrunThreshold_RMASK 0xF +#define QIB_7322_IBCCtrlA_0_PhyerrThreshold_LSB 0x20 +#define QIB_7322_IBCCtrlA_0_PhyerrThreshold_MSB 0x23 +#define QIB_7322_IBCCtrlA_0_PhyerrThreshold_RMASK 0xF +#define QIB_7322_IBCCtrlA_0_MaxPktLen_LSB 0x15 +#define QIB_7322_IBCCtrlA_0_MaxPktLen_MSB 0x1F +#define QIB_7322_IBCCtrlA_0_MaxPktLen_RMASK 0x7FF +#define QIB_7322_IBCCtrlA_0_LinkCmd_LSB 0x13 +#define QIB_7322_IBCCtrlA_0_LinkCmd_MSB 0x14 +#define QIB_7322_IBCCtrlA_0_LinkCmd_RMASK 0x3 +#define QIB_7322_IBCCtrlA_0_LinkInitCmd_LSB 0x10 +#define QIB_7322_IBCCtrlA_0_LinkInitCmd_MSB 0x12 +#define QIB_7322_IBCCtrlA_0_LinkInitCmd_RMASK 0x7 +#define QIB_7322_IBCCtrlA_0_FlowCtrlWaterMark_LSB 0x8 +#define QIB_7322_IBCCtrlA_0_FlowCtrlWaterMark_MSB 0xF +#define QIB_7322_IBCCtrlA_0_FlowCtrlWaterMark_RMASK 0xFF +#define QIB_7322_IBCCtrlA_0_FlowCtrlPeriod_LSB 0x0 +#define QIB_7322_IBCCtrlA_0_FlowCtrlPeriod_MSB 0x7 +#define QIB_7322_IBCCtrlA_0_FlowCtrlPeriod_RMASK 0xFF + +#define QIB_7322_IBCCtrlB_0_OFFS 0x1568 +#define QIB_7322_IBCCtrlB_0_DEF 0x00000000000305FF +#define QIB_7322_IBCCtrlB_0_IB_DLID_MASK_LSB 0x30 +#define QIB_7322_IBCCtrlB_0_IB_DLID_MASK_MSB 0x3F +#define QIB_7322_IBCCtrlB_0_IB_DLID_MASK_RMASK 0xFFFF +#define QIB_7322_IBCCtrlB_0_IB_DLID_LSB 0x20 +#define QIB_7322_IBCCtrlB_0_IB_DLID_MSB 0x2F +#define QIB_7322_IBCCtrlB_0_IB_DLID_RMASK 0xFFFF +#define QIB_7322_IBCCtrlB_0_IB_ENABLE_FILT_DPKT_LSB 0x1B +#define QIB_7322_IBCCtrlB_0_IB_ENABLE_FILT_DPKT_MSB 0x1B +#define QIB_7322_IBCCtrlB_0_IB_ENABLE_FILT_DPKT_RMASK 0x1 +#define QIB_7322_IBCCtrlB_0_HRTBT_REQ_LSB 0x1A +#define QIB_7322_IBCCtrlB_0_HRTBT_REQ_MSB 0x1A +#define QIB_7322_IBCCtrlB_0_HRTBT_REQ_RMASK 0x1 +#define QIB_7322_IBCCtrlB_0_HRTBT_PORT_LSB 0x12 +#define QIB_7322_IBCCtrlB_0_HRTBT_PORT_MSB 0x19 +#define QIB_7322_IBCCtrlB_0_HRTBT_PORT_RMASK 0xFF +#define QIB_7322_IBCCtrlB_0_HRTBT_AUTO_LSB 0x11 +#define QIB_7322_IBCCtrlB_0_HRTBT_AUTO_MSB 0x11 +#define QIB_7322_IBCCtrlB_0_HRTBT_AUTO_RMASK 0x1 +#define QIB_7322_IBCCtrlB_0_HRTBT_ENB_LSB 0x10 +#define QIB_7322_IBCCtrlB_0_HRTBT_ENB_MSB 0x10 +#define QIB_7322_IBCCtrlB_0_HRTBT_ENB_RMASK 0x1 +#define QIB_7322_IBCCtrlB_0_SD_DDS_LSB 0xC +#define QIB_7322_IBCCtrlB_0_SD_DDS_MSB 0xF +#define QIB_7322_IBCCtrlB_0_SD_DDS_RMASK 0xF +#define QIB_7322_IBCCtrlB_0_SD_DDSV_LSB 0xB +#define QIB_7322_IBCCtrlB_0_SD_DDSV_MSB 0xB +#define QIB_7322_IBCCtrlB_0_SD_DDSV_RMASK 0x1 +#define QIB_7322_IBCCtrlB_0_SD_ADD_ENB_LSB 0xA +#define QIB_7322_IBCCtrlB_0_SD_ADD_ENB_MSB 0xA +#define QIB_7322_IBCCtrlB_0_SD_ADD_ENB_RMASK 0x1 +#define QIB_7322_IBCCtrlB_0_SD_RX_EQUAL_ENABLE_LSB 0x9 +#define QIB_7322_IBCCtrlB_0_SD_RX_EQUAL_ENABLE_MSB 0x9 +#define QIB_7322_IBCCtrlB_0_SD_RX_EQUAL_ENABLE_RMASK 0x1 +#define QIB_7322_IBCCtrlB_0_IB_LANE_REV_SUPPORTED_LSB 0x8 +#define QIB_7322_IBCCtrlB_0_IB_LANE_REV_SUPPORTED_MSB 0x8 +#define QIB_7322_IBCCtrlB_0_IB_LANE_REV_SUPPORTED_RMASK 0x1 +#define QIB_7322_IBCCtrlB_0_IB_POLARITY_REV_SUPP_LSB 0x7 +#define QIB_7322_IBCCtrlB_0_IB_POLARITY_REV_SUPP_MSB 0x7 +#define QIB_7322_IBCCtrlB_0_IB_POLARITY_REV_SUPP_RMASK 0x1 +#define QIB_7322_IBCCtrlB_0_IB_NUM_CHANNELS_LSB 0x5 +#define QIB_7322_IBCCtrlB_0_IB_NUM_CHANNELS_MSB 0x6 +#define QIB_7322_IBCCtrlB_0_IB_NUM_CHANNELS_RMASK 0x3 +#define QIB_7322_IBCCtrlB_0_SD_SPEED_QDR_LSB 0x4 +#define QIB_7322_IBCCtrlB_0_SD_SPEED_QDR_MSB 0x4 +#define QIB_7322_IBCCtrlB_0_SD_SPEED_QDR_RMASK 0x1 +#define QIB_7322_IBCCtrlB_0_SD_SPEED_DDR_LSB 0x3 +#define QIB_7322_IBCCtrlB_0_SD_SPEED_DDR_MSB 0x3 +#define QIB_7322_IBCCtrlB_0_SD_SPEED_DDR_RMASK 0x1 +#define QIB_7322_IBCCtrlB_0_SD_SPEED_SDR_LSB 0x2 +#define QIB_7322_IBCCtrlB_0_SD_SPEED_SDR_MSB 0x2 +#define QIB_7322_IBCCtrlB_0_SD_SPEED_SDR_RMASK 0x1 +#define QIB_7322_IBCCtrlB_0_SD_SPEED_LSB 0x1 +#define QIB_7322_IBCCtrlB_0_SD_SPEED_MSB 0x1 +#define QIB_7322_IBCCtrlB_0_SD_SPEED_RMASK 0x1 +#define QIB_7322_IBCCtrlB_0_IB_ENHANCED_MODE_LSB 0x0 +#define QIB_7322_IBCCtrlB_0_IB_ENHANCED_MODE_MSB 0x0 +#define QIB_7322_IBCCtrlB_0_IB_ENHANCED_MODE_RMASK 0x1 + +#define QIB_7322_IBCCtrlC_0_OFFS 0x1570 +#define QIB_7322_IBCCtrlC_0_DEF 0x0000000000000301 +#define QIB_7322_IBCCtrlC_0_IB_BACK_PORCH_LSB 0x5 +#define QIB_7322_IBCCtrlC_0_IB_BACK_PORCH_MSB 0x9 +#define QIB_7322_IBCCtrlC_0_IB_BACK_PORCH_RMASK 0x1F +#define QIB_7322_IBCCtrlC_0_IB_FRONT_PORCH_LSB 0x0 +#define QIB_7322_IBCCtrlC_0_IB_FRONT_PORCH_MSB 0x4 +#define QIB_7322_IBCCtrlC_0_IB_FRONT_PORCH_RMASK 0x1F + +#define QIB_7322_HRTBT_GUID_0_OFFS 0x1588 +#define QIB_7322_HRTBT_GUID_0_DEF 0x0000000000000000 + +#define QIB_7322_IB_SDTEST_IF_TX_0_OFFS 0x1590 +#define QIB_7322_IB_SDTEST_IF_TX_0_DEF 0x0000000000000000 +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_TX_RX_CFG_LSB 0x30 +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_TX_RX_CFG_MSB 0x3F +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_TX_RX_CFG_RMASK 0xFFFF +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_TX_TX_CFG_LSB 0x20 +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_TX_TX_CFG_MSB 0x2F +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_TX_TX_CFG_RMASK 0xFFFF +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_TX_SPEED_LSB 0xD +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_TX_SPEED_MSB 0xF +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_TX_SPEED_RMASK 0x7 +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_TX_OPCODE_LSB 0xB +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_TX_OPCODE_MSB 0xC +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_TX_OPCODE_RMASK 0x3 +#define QIB_7322_IB_SDTEST_IF_TX_0_CREDIT_CHANGE_LSB 0x4 +#define QIB_7322_IB_SDTEST_IF_TX_0_CREDIT_CHANGE_MSB 0x4 +#define QIB_7322_IB_SDTEST_IF_TX_0_CREDIT_CHANGE_RMASK 0x1 +#define QIB_7322_IB_SDTEST_IF_TX_0_VL_CAP_LSB 0x2 +#define QIB_7322_IB_SDTEST_IF_TX_0_VL_CAP_MSB 0x3 +#define QIB_7322_IB_SDTEST_IF_TX_0_VL_CAP_RMASK 0x3 +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_3_TX_VALID_LSB 0x1 +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_3_TX_VALID_MSB 0x1 +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_3_TX_VALID_RMASK 0x1 +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_T_TX_VALID_LSB 0x0 +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_T_TX_VALID_MSB 0x0 +#define QIB_7322_IB_SDTEST_IF_TX_0_TS_T_TX_VALID_RMASK 0x1 + +#define QIB_7322_IB_SDTEST_IF_RX_0_OFFS 0x1598 +#define QIB_7322_IB_SDTEST_IF_RX_0_DEF 0x0000000000000000 +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_RX_RX_CFG_LSB 0x30 +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_RX_RX_CFG_MSB 0x3F +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_RX_RX_CFG_RMASK 0xFFFF +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_RX_TX_CFG_LSB 0x20 +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_RX_TX_CFG_MSB 0x2F +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_RX_TX_CFG_RMASK 0xFFFF +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_RX_B_LSB 0x18 +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_RX_B_MSB 0x1F +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_RX_B_RMASK 0xFF +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_RX_A_LSB 0x10 +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_RX_A_MSB 0x17 +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_RX_A_RMASK 0xFF +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_3_RX_VALID_LSB 0x1 +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_3_RX_VALID_MSB 0x1 +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_3_RX_VALID_RMASK 0x1 +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_T_RX_VALID_LSB 0x0 +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_T_RX_VALID_MSB 0x0 +#define QIB_7322_IB_SDTEST_IF_RX_0_TS_T_RX_VALID_RMASK 0x1 + +#define QIB_7322_IBNCModeCtrl_0_OFFS 0x15B8 +#define QIB_7322_IBNCModeCtrl_0_DEF 0x0000000000000000 +#define QIB_7322_IBNCModeCtrl_0_ScrambleCapRemoteForce_LSB 0x22 +#define QIB_7322_IBNCModeCtrl_0_ScrambleCapRemoteForce_MSB 0x22 +#define QIB_7322_IBNCModeCtrl_0_ScrambleCapRemoteForce_RMASK 0x1 +#define QIB_7322_IBNCModeCtrl_0_ScrambleCapRemoteMask_LSB 0x21 +#define QIB_7322_IBNCModeCtrl_0_ScrambleCapRemoteMask_MSB 0x21 +#define QIB_7322_IBNCModeCtrl_0_ScrambleCapRemoteMask_RMASK 0x1 +#define QIB_7322_IBNCModeCtrl_0_ScrambleCapLocal_LSB 0x20 +#define QIB_7322_IBNCModeCtrl_0_ScrambleCapLocal_MSB 0x20 +#define QIB_7322_IBNCModeCtrl_0_ScrambleCapLocal_RMASK 0x1 +#define QIB_7322_IBNCModeCtrl_0_TSMCode_TS2_LSB 0x11 +#define QIB_7322_IBNCModeCtrl_0_TSMCode_TS2_MSB 0x19 +#define QIB_7322_IBNCModeCtrl_0_TSMCode_TS2_RMASK 0x1FF +#define QIB_7322_IBNCModeCtrl_0_TSMCode_TS1_LSB 0x8 +#define QIB_7322_IBNCModeCtrl_0_TSMCode_TS1_MSB 0x10 +#define QIB_7322_IBNCModeCtrl_0_TSMCode_TS1_RMASK 0x1FF +#define QIB_7322_IBNCModeCtrl_0_TSMEnable_ignore_TSM_on_rx_LSB 0x2 +#define QIB_7322_IBNCModeCtrl_0_TSMEnable_ignore_TSM_on_rx_MSB 0x2 +#define QIB_7322_IBNCModeCtrl_0_TSMEnable_ignore_TSM_on_rx_RMASK 0x1 +#define QIB_7322_IBNCModeCtrl_0_TSMEnable_send_TS2_LSB 0x1 +#define QIB_7322_IBNCModeCtrl_0_TSMEnable_send_TS2_MSB 0x1 +#define QIB_7322_IBNCModeCtrl_0_TSMEnable_send_TS2_RMASK 0x1 +#define QIB_7322_IBNCModeCtrl_0_TSMEnable_send_TS1_LSB 0x0 +#define QIB_7322_IBNCModeCtrl_0_TSMEnable_send_TS1_MSB 0x0 +#define QIB_7322_IBNCModeCtrl_0_TSMEnable_send_TS1_RMASK 0x1 + +#define QIB_7322_IBSerdesStatus_0_OFFS 0x15D0 +#define QIB_7322_IBSerdesStatus_0_DEF 0x0000000000000000 + +#define QIB_7322_IBPCSConfig_0_OFFS 0x15D8 +#define QIB_7322_IBPCSConfig_0_DEF 0x0000000000000007 +#define QIB_7322_IBPCSConfig_0_link_sync_mask_LSB 0x9 +#define QIB_7322_IBPCSConfig_0_link_sync_mask_MSB 0x12 +#define QIB_7322_IBPCSConfig_0_link_sync_mask_RMASK 0x3FF +#define QIB_7322_IBPCSConfig_0_xcv_rreset_LSB 0x2 +#define QIB_7322_IBPCSConfig_0_xcv_rreset_MSB 0x2 +#define QIB_7322_IBPCSConfig_0_xcv_rreset_RMASK 0x1 +#define QIB_7322_IBPCSConfig_0_xcv_treset_LSB 0x1 +#define QIB_7322_IBPCSConfig_0_xcv_treset_MSB 0x1 +#define QIB_7322_IBPCSConfig_0_xcv_treset_RMASK 0x1 +#define QIB_7322_IBPCSConfig_0_tx_rx_reset_LSB 0x0 +#define QIB_7322_IBPCSConfig_0_tx_rx_reset_MSB 0x0 +#define QIB_7322_IBPCSConfig_0_tx_rx_reset_RMASK 0x1 + +#define QIB_7322_IBSerdesCtrl_0_OFFS 0x15E0 +#define QIB_7322_IBSerdesCtrl_0_DEF 0x0000000000FFA00F +#define QIB_7322_IBSerdesCtrl_0_DISABLE_RXLATOFF_QDR_LSB 0x1A +#define QIB_7322_IBSerdesCtrl_0_DISABLE_RXLATOFF_QDR_MSB 0x1A +#define QIB_7322_IBSerdesCtrl_0_DISABLE_RXLATOFF_QDR_RMASK 0x1 +#define QIB_7322_IBSerdesCtrl_0_DISABLE_RXLATOFF_DDR_LSB 0x19 +#define QIB_7322_IBSerdesCtrl_0_DISABLE_RXLATOFF_DDR_MSB 0x19 +#define QIB_7322_IBSerdesCtrl_0_DISABLE_RXLATOFF_DDR_RMASK 0x1 +#define QIB_7322_IBSerdesCtrl_0_DISABLE_RXLATOFF_SDR_LSB 0x18 +#define QIB_7322_IBSerdesCtrl_0_DISABLE_RXLATOFF_SDR_MSB 0x18 +#define QIB_7322_IBSerdesCtrl_0_DISABLE_RXLATOFF_SDR_RMASK 0x1 +#define QIB_7322_IBSerdesCtrl_0_CHANNEL_RESET_N_LSB 0x14 +#define QIB_7322_IBSerdesCtrl_0_CHANNEL_RESET_N_MSB 0x17 +#define QIB_7322_IBSerdesCtrl_0_CHANNEL_RESET_N_RMASK 0xF +#define QIB_7322_IBSerdesCtrl_0_CGMODE_LSB 0x10 +#define QIB_7322_IBSerdesCtrl_0_CGMODE_MSB 0x13 +#define QIB_7322_IBSerdesCtrl_0_CGMODE_RMASK 0xF +#define QIB_7322_IBSerdesCtrl_0_IB_LAT_MODE_LSB 0xF +#define QIB_7322_IBSerdesCtrl_0_IB_LAT_MODE_MSB 0xF +#define QIB_7322_IBSerdesCtrl_0_IB_LAT_MODE_RMASK 0x1 +#define QIB_7322_IBSerdesCtrl_0_RXLOSEN_LSB 0xD +#define QIB_7322_IBSerdesCtrl_0_RXLOSEN_MSB 0xD +#define QIB_7322_IBSerdesCtrl_0_RXLOSEN_RMASK 0x1 +#define QIB_7322_IBSerdesCtrl_0_LPEN_LSB 0xC +#define QIB_7322_IBSerdesCtrl_0_LPEN_MSB 0xC +#define QIB_7322_IBSerdesCtrl_0_LPEN_RMASK 0x1 +#define QIB_7322_IBSerdesCtrl_0_PLLPD_LSB 0xB +#define QIB_7322_IBSerdesCtrl_0_PLLPD_MSB 0xB +#define QIB_7322_IBSerdesCtrl_0_PLLPD_RMASK 0x1 +#define QIB_7322_IBSerdesCtrl_0_TXPD_LSB 0xA +#define QIB_7322_IBSerdesCtrl_0_TXPD_MSB 0xA +#define QIB_7322_IBSerdesCtrl_0_TXPD_RMASK 0x1 +#define QIB_7322_IBSerdesCtrl_0_RXPD_LSB 0x9 +#define QIB_7322_IBSerdesCtrl_0_RXPD_MSB 0x9 +#define QIB_7322_IBSerdesCtrl_0_RXPD_RMASK 0x1 +#define QIB_7322_IBSerdesCtrl_0_TXIDLE_LSB 0x8 +#define QIB_7322_IBSerdesCtrl_0_TXIDLE_MSB 0x8 +#define QIB_7322_IBSerdesCtrl_0_TXIDLE_RMASK 0x1 +#define QIB_7322_IBSerdesCtrl_0_CMODE_LSB 0x0 +#define QIB_7322_IBSerdesCtrl_0_CMODE_MSB 0x6 +#define QIB_7322_IBSerdesCtrl_0_CMODE_RMASK 0x7F + +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_OFFS 0x1600 +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_DEF 0x0000000000000000 +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_tx_override_deemphasis_select_LSB 0x1F +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_tx_override_deemphasis_select_MSB 0x1F +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_tx_override_deemphasis_select_RMASK 0x1 +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_reset_tx_deemphasis_override_LSB 0x1E +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_reset_tx_deemphasis_override_MSB 0x1E +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_reset_tx_deemphasis_override_RMASK 0x1 +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_txampcntl_d2a_LSB 0xE +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_txampcntl_d2a_MSB 0x11 +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_txampcntl_d2a_RMASK 0xF +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_txc0_ena_LSB 0x9 +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_txc0_ena_MSB 0xD +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_txc0_ena_RMASK 0x1F +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_txcp1_ena_LSB 0x5 +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_txcp1_ena_MSB 0x8 +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_txcp1_ena_RMASK 0xF +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_txcn1_xtra_emph0_LSB 0x3 +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_txcn1_xtra_emph0_MSB 0x4 +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_txcn1_xtra_emph0_RMASK 0x3 +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_txcn1_ena_LSB 0x0 +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_txcn1_ena_MSB 0x2 +#define QIB_7322_IBSD_TX_DEEMPHASIS_OVERRIDE_0_txcn1_ena_RMASK 0x7 + +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_OFFS 0x1640 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_DEF 0x0000000000000000 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenagain_sdr_ch3_LSB 0x27 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenagain_sdr_ch3_MSB 0x27 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenagain_sdr_ch3_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenagain_sdr_ch2_LSB 0x26 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenagain_sdr_ch2_MSB 0x26 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenagain_sdr_ch2_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenagain_sdr_ch1_LSB 0x25 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenagain_sdr_ch1_MSB 0x25 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenagain_sdr_ch1_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenagain_sdr_ch0_LSB 0x24 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenagain_sdr_ch0_MSB 0x24 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenagain_sdr_ch0_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenale_sdr_ch3_LSB 0x23 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenale_sdr_ch3_MSB 0x23 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenale_sdr_ch3_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenale_sdr_ch2_LSB 0x22 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenale_sdr_ch2_MSB 0x22 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenale_sdr_ch2_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenale_sdr_ch1_LSB 0x21 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenale_sdr_ch1_MSB 0x21 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenale_sdr_ch1_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenale_sdr_ch0_LSB 0x20 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenale_sdr_ch0_MSB 0x20 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenale_sdr_ch0_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenadfe_sdr_ch3_LSB 0x18 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenadfe_sdr_ch3_MSB 0x1F +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenadfe_sdr_ch3_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenadfe_sdr_ch2_LSB 0x10 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenadfe_sdr_ch2_MSB 0x17 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenadfe_sdr_ch2_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenadfe_sdr_ch1_LSB 0x8 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenadfe_sdr_ch1_MSB 0xF +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenadfe_sdr_ch1_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenadfe_sdr_ch0_LSB 0x0 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenadfe_sdr_ch0_MSB 0x7 +#define QIB_7322_ADAPT_DISABLE_STATIC_SDR_0_static_disable_rxenadfe_sdr_ch0_RMASK 0xFF + +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_OFFS 0x1648 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_DEF 0x0000000000000000 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenagain_sdr_ch3_LSB 0x27 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenagain_sdr_ch3_MSB 0x27 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenagain_sdr_ch3_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenagain_sdr_ch2_LSB 0x26 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenagain_sdr_ch2_MSB 0x26 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenagain_sdr_ch2_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenagain_sdr_ch1_LSB 0x25 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenagain_sdr_ch1_MSB 0x25 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenagain_sdr_ch1_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenagain_sdr_ch0_LSB 0x24 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenagain_sdr_ch0_MSB 0x24 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenagain_sdr_ch0_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenale_sdr_ch3_LSB 0x23 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenale_sdr_ch3_MSB 0x23 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenale_sdr_ch3_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenale_sdr_ch2_LSB 0x22 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenale_sdr_ch2_MSB 0x22 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenale_sdr_ch2_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenale_sdr_ch1_LSB 0x21 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenale_sdr_ch1_MSB 0x21 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenale_sdr_ch1_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenale_sdr_ch0_LSB 0x20 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenale_sdr_ch0_MSB 0x20 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenale_sdr_ch0_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenadfe_sdr_ch3_LSB 0x18 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenadfe_sdr_ch3_MSB 0x1F +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenadfe_sdr_ch3_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenadfe_sdr_ch2_LSB 0x10 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenadfe_sdr_ch2_MSB 0x17 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenadfe_sdr_ch2_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenadfe_sdr_ch1_LSB 0x8 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenadfe_sdr_ch1_MSB 0xF +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenadfe_sdr_ch1_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenadfe_sdr_ch0_LSB 0x0 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenadfe_sdr_ch0_MSB 0x7 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_SDR_0_dyn_disable_rxenadfe_sdr_ch0_RMASK 0xFF + +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_OFFS 0x1650 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_DEF 0x0000000000000000 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenagain_ddr_ch3_LSB 0x27 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenagain_ddr_ch3_MSB 0x27 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenagain_ddr_ch3_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenagain_ddr_ch2_LSB 0x26 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenagain_ddr_ch2_MSB 0x26 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenagain_ddr_ch2_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenagain_ddr_ch1_LSB 0x25 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenagain_ddr_ch1_MSB 0x25 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenagain_ddr_ch1_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenagain_ddr_ch0_LSB 0x24 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenagain_ddr_ch0_MSB 0x24 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenagain_ddr_ch0_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenale_ddr_ch3_LSB 0x23 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenale_ddr_ch3_MSB 0x23 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenale_ddr_ch3_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenale_ddr_ch2_LSB 0x22 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenale_ddr_ch2_MSB 0x22 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenale_ddr_ch2_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenale_ddr_ch1_LSB 0x21 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenale_ddr_ch1_MSB 0x21 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenale_ddr_ch1_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenale_ddr_ch0_LSB 0x20 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenale_ddr_ch0_MSB 0x20 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenale_ddr_ch0_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenadfe_ddr_ch3_LSB 0x18 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenadfe_ddr_ch3_MSB 0x1F +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenadfe_ddr_ch3_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenadfe_ddr_ch2_LSB 0x10 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenadfe_ddr_ch2_MSB 0x17 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenadfe_ddr_ch2_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenadfe_ddr_ch1_LSB 0x8 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenadfe_ddr_ch1_MSB 0xF +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenadfe_ddr_ch1_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenadfe_ddr_ch0_LSB 0x0 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenadfe_ddr_ch0_MSB 0x7 +#define QIB_7322_ADAPT_DISABLE_STATIC_DDR_0_static_disable_rxenadfe_ddr_ch0_RMASK 0xFF + +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_OFFS 0x1658 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_DEF 0x0000000000000000 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenagain_ddr_ch3_LSB 0x27 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenagain_ddr_ch3_MSB 0x27 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenagain_ddr_ch3_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenagain_ddr_ch2_LSB 0x26 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenagain_ddr_ch2_MSB 0x26 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenagain_ddr_ch2_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenagain_ddr_ch1_LSB 0x25 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenagain_ddr_ch1_MSB 0x25 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenagain_ddr_ch1_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenagain_ddr_ch0_LSB 0x24 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenagain_ddr_ch0_MSB 0x24 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenagain_ddr_ch0_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenale_ddr_ch3_LSB 0x23 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenale_ddr_ch3_MSB 0x23 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenale_ddr_ch3_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenale_ddr_ch2_LSB 0x22 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenale_ddr_ch2_MSB 0x22 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenale_ddr_ch2_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenale_ddr_ch1_LSB 0x21 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenale_ddr_ch1_MSB 0x21 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenale_ddr_ch1_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenale_ddr_ch0_LSB 0x20 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenale_ddr_ch0_MSB 0x20 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenale_ddr_ch0_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenadfe_ddr_ch3_LSB 0x18 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenadfe_ddr_ch3_MSB 0x1F +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenadfe_ddr_ch3_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenadfe_ddr_ch2_LSB 0x10 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenadfe_ddr_ch2_MSB 0x17 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenadfe_ddr_ch2_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenadfe_ddr_ch1_LSB 0x8 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenadfe_ddr_ch1_MSB 0xF +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenadfe_ddr_ch1_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenadfe_ddr_ch0_LSB 0x0 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenadfe_ddr_ch0_MSB 0x7 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_DDR_0_dyn_disable_rxenadfe_ddr_ch0_RMASK 0xFF + +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_OFFS 0x1660 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_DEF 0x0000000000000000 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenagain_qdr_ch3_LSB 0x27 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenagain_qdr_ch3_MSB 0x27 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenagain_qdr_ch3_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenagain_qdr_ch2_LSB 0x26 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenagain_qdr_ch2_MSB 0x26 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenagain_qdr_ch2_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenagain_qdr_ch1_LSB 0x25 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenagain_qdr_ch1_MSB 0x25 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenagain_qdr_ch1_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenagain_qdr_ch0_LSB 0x24 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenagain_qdr_ch0_MSB 0x24 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenagain_qdr_ch0_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenale_qdr_ch3_LSB 0x23 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenale_qdr_ch3_MSB 0x23 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenale_qdr_ch3_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenale_qdr_ch2_LSB 0x22 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenale_qdr_ch2_MSB 0x22 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenale_qdr_ch2_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenale_qdr_ch1_LSB 0x21 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenale_qdr_ch1_MSB 0x21 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenale_qdr_ch1_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenale_qdr_ch0_LSB 0x20 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenale_qdr_ch0_MSB 0x20 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenale_qdr_ch0_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenadfe_qdr_ch3_LSB 0x18 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenadfe_qdr_ch3_MSB 0x1F +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenadfe_qdr_ch3_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenadfe_qdr_ch2_LSB 0x10 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenadfe_qdr_ch2_MSB 0x17 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenadfe_qdr_ch2_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenadfe_qdr_ch1_LSB 0x8 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenadfe_qdr_ch1_MSB 0xF +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenadfe_qdr_ch1_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenadfe_qdr_ch0_LSB 0x0 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenadfe_qdr_ch0_MSB 0x7 +#define QIB_7322_ADAPT_DISABLE_STATIC_QDR_0_static_disable_rxenadfe_qdr_ch0_RMASK 0xFF + +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_OFFS 0x1668 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_DEF 0x0000000000000000 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenagain_qdr_ch3_LSB 0x27 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenagain_qdr_ch3_MSB 0x27 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenagain_qdr_ch3_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenagain_qdr_ch2_LSB 0x26 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenagain_qdr_ch2_MSB 0x26 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenagain_qdr_ch2_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenagain_qdr_ch1_LSB 0x25 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenagain_qdr_ch1_MSB 0x25 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenagain_qdr_ch1_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenagain_qdr_ch0_LSB 0x24 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenagain_qdr_ch0_MSB 0x24 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenagain_qdr_ch0_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenale_qdr_ch3_LSB 0x23 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenale_qdr_ch3_MSB 0x23 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenale_qdr_ch3_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenale_qdr_ch2_LSB 0x22 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenale_qdr_ch2_MSB 0x22 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenale_qdr_ch2_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenale_qdr_ch1_LSB 0x21 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenale_qdr_ch1_MSB 0x21 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenale_qdr_ch1_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenale_qdr_ch0_LSB 0x20 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenale_qdr_ch0_MSB 0x20 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenale_qdr_ch0_RMASK 0x1 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenadfe_qdr_ch3_LSB 0x18 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenadfe_qdr_ch3_MSB 0x1F +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenadfe_qdr_ch3_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenadfe_qdr_ch2_LSB 0x10 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenadfe_qdr_ch2_MSB 0x17 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenadfe_qdr_ch2_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenadfe_qdr_ch1_LSB 0x8 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenadfe_qdr_ch1_MSB 0xF +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenadfe_qdr_ch1_RMASK 0xFF +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenadfe_qdr_ch0_LSB 0x0 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenadfe_qdr_ch0_MSB 0x7 +#define QIB_7322_ADAPT_DISABLE_DYNAMIC_QDR_0_dyn_disable_rxenadfe_qdr_ch0_RMASK 0xFF + +#define QIB_7322_ADAPT_DISABLE_TIMER_THRESHOLD_0_OFFS 0x1670 +#define QIB_7322_ADAPT_DISABLE_TIMER_THRESHOLD_0_DEF 0x0000000000000000 + +#define QIB_7322_HighPriorityLimit_0_OFFS 0x1BC0 +#define QIB_7322_HighPriorityLimit_0_DEF 0x0000000000000000 +#define QIB_7322_HighPriorityLimit_0_Limit_LSB 0x0 +#define QIB_7322_HighPriorityLimit_0_Limit_MSB 0x7 +#define QIB_7322_HighPriorityLimit_0_Limit_RMASK 0xFF + +#define QIB_7322_LowPriority0_0_OFFS 0x1C00 +#define QIB_7322_LowPriority0_0_DEF 0x0000000000000000 +#define QIB_7322_LowPriority0_0_VirtualLane_LSB 0x10 +#define QIB_7322_LowPriority0_0_VirtualLane_MSB 0x12 +#define QIB_7322_LowPriority0_0_VirtualLane_RMASK 0x7 +#define QIB_7322_LowPriority0_0_Weight_LSB 0x0 +#define QIB_7322_LowPriority0_0_Weight_MSB 0x7 +#define QIB_7322_LowPriority0_0_Weight_RMASK 0xFF + +#define QIB_7322_HighPriority0_0_OFFS 0x1E00 +#define QIB_7322_HighPriority0_0_DEF 0x0000000000000000 +#define QIB_7322_HighPriority0_0_VirtualLane_LSB 0x10 +#define QIB_7322_HighPriority0_0_VirtualLane_MSB 0x12 +#define QIB_7322_HighPriority0_0_VirtualLane_RMASK 0x7 +#define QIB_7322_HighPriority0_0_Weight_LSB 0x0 +#define QIB_7322_HighPriority0_0_Weight_MSB 0x7 +#define QIB_7322_HighPriority0_0_Weight_RMASK 0xFF + +#define QIB_7322_CntrRegBase_1_OFFS 0x2028 +#define QIB_7322_CntrRegBase_1_DEF 0x0000000000013000 + +#define QIB_7322_RcvQPMulticastContext_1_OFFS 0x2170 + +#define QIB_7322_SendCtrl_1_OFFS 0x21C0 + +#define QIB_7322_SendBufAvail0_OFFS 0x3000 +#define QIB_7322_SendBufAvail0_DEF 0x0000000000000000 +#define QIB_7322_SendBufAvail0_SendBuf_31_0_LSB 0x0 +#define QIB_7322_SendBufAvail0_SendBuf_31_0_MSB 0x3F +#define QIB_7322_SendBufAvail0_SendBuf_31_0_RMASK 0x0 + +#define QIB_7322_MsixTable_OFFS 0x8000 +#define QIB_7322_MsixTable_DEF 0x0000000000000000 + +#define QIB_7322_MsixPba_OFFS 0x9000 +#define QIB_7322_MsixPba_DEF 0x0000000000000000 + +#define QIB_7322_LAMemory_OFFS 0xA000 +#define QIB_7322_LAMemory_DEF 0x0000000000000000 + +#define QIB_7322_LBIntCnt_OFFS 0x11000 +#define QIB_7322_LBIntCnt_DEF 0x0000000000000000 + +#define QIB_7322_LBFlowStallCnt_OFFS 0x11008 +#define QIB_7322_LBFlowStallCnt_DEF 0x0000000000000000 + +#define QIB_7322_RxTIDFullErrCnt_OFFS 0x110D0 +#define QIB_7322_RxTIDFullErrCnt_DEF 0x0000000000000000 + +#define QIB_7322_RxTIDValidErrCnt_OFFS 0x110D8 +#define QIB_7322_RxTIDValidErrCnt_DEF 0x0000000000000000 + +#define QIB_7322_RxP0HdrEgrOvflCnt_OFFS 0x110E8 +#define QIB_7322_RxP0HdrEgrOvflCnt_DEF 0x0000000000000000 + +#define QIB_7322_PcieRetryBufDiagQwordCnt_OFFS 0x111A0 +#define QIB_7322_PcieRetryBufDiagQwordCnt_DEF 0x0000000000000000 + +#define QIB_7322_RxTidFlowDropCnt_OFFS 0x111E0 +#define QIB_7322_RxTidFlowDropCnt_DEF 0x0000000000000000 + +#define QIB_7322_LBIntCnt_0_OFFS 0x12000 +#define QIB_7322_LBIntCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_TxCreditUpToDateTimeOut_0_OFFS 0x12008 +#define QIB_7322_TxCreditUpToDateTimeOut_0_DEF 0x0000000000000000 + +#define QIB_7322_TxSDmaDescCnt_0_OFFS 0x12010 +#define QIB_7322_TxSDmaDescCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_TxUnsupVLErrCnt_0_OFFS 0x12018 +#define QIB_7322_TxUnsupVLErrCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_TxDataPktCnt_0_OFFS 0x12020 +#define QIB_7322_TxDataPktCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_TxFlowPktCnt_0_OFFS 0x12028 +#define QIB_7322_TxFlowPktCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_TxDwordCnt_0_OFFS 0x12030 +#define QIB_7322_TxDwordCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_TxLenErrCnt_0_OFFS 0x12038 +#define QIB_7322_TxLenErrCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_TxMaxMinLenErrCnt_0_OFFS 0x12040 +#define QIB_7322_TxMaxMinLenErrCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_TxUnderrunCnt_0_OFFS 0x12048 +#define QIB_7322_TxUnderrunCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_TxFlowStallCnt_0_OFFS 0x12050 +#define QIB_7322_TxFlowStallCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_TxDroppedPktCnt_0_OFFS 0x12058 +#define QIB_7322_TxDroppedPktCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxDroppedPktCnt_0_OFFS 0x12060 +#define QIB_7322_RxDroppedPktCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxDataPktCnt_0_OFFS 0x12068 +#define QIB_7322_RxDataPktCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxFlowPktCnt_0_OFFS 0x12070 +#define QIB_7322_RxFlowPktCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxDwordCnt_0_OFFS 0x12078 +#define QIB_7322_RxDwordCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxLenErrCnt_0_OFFS 0x12080 +#define QIB_7322_RxLenErrCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxMaxMinLenErrCnt_0_OFFS 0x12088 +#define QIB_7322_RxMaxMinLenErrCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxICRCErrCnt_0_OFFS 0x12090 +#define QIB_7322_RxICRCErrCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxVCRCErrCnt_0_OFFS 0x12098 +#define QIB_7322_RxVCRCErrCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxFlowCtrlViolCnt_0_OFFS 0x120A0 +#define QIB_7322_RxFlowCtrlViolCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxVersionErrCnt_0_OFFS 0x120A8 +#define QIB_7322_RxVersionErrCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxLinkMalformCnt_0_OFFS 0x120B0 +#define QIB_7322_RxLinkMalformCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxEBPCnt_0_OFFS 0x120B8 +#define QIB_7322_RxEBPCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxLPCRCErrCnt_0_OFFS 0x120C0 +#define QIB_7322_RxLPCRCErrCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxBufOvflCnt_0_OFFS 0x120C8 +#define QIB_7322_RxBufOvflCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxLenTruncateCnt_0_OFFS 0x120D0 +#define QIB_7322_RxLenTruncateCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxPKeyMismatchCnt_0_OFFS 0x120E0 +#define QIB_7322_RxPKeyMismatchCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_IBLinkDownedCnt_0_OFFS 0x12180 +#define QIB_7322_IBLinkDownedCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_IBSymbolErrCnt_0_OFFS 0x12188 +#define QIB_7322_IBSymbolErrCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_IBStatusChangeCnt_0_OFFS 0x12190 +#define QIB_7322_IBStatusChangeCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_IBLinkErrRecoveryCnt_0_OFFS 0x12198 +#define QIB_7322_IBLinkErrRecoveryCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_ExcessBufferOvflCnt_0_OFFS 0x121A8 +#define QIB_7322_ExcessBufferOvflCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_LocalLinkIntegrityErrCnt_0_OFFS 0x121B0 +#define QIB_7322_LocalLinkIntegrityErrCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxVlErrCnt_0_OFFS 0x121B8 +#define QIB_7322_RxVlErrCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxDlidFltrCnt_0_OFFS 0x121C0 +#define QIB_7322_RxDlidFltrCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxVL15DroppedPktCnt_0_OFFS 0x121C8 +#define QIB_7322_RxVL15DroppedPktCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxOtherLocalPhyErrCnt_0_OFFS 0x121D0 +#define QIB_7322_RxOtherLocalPhyErrCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_RxQPInvalidContextCnt_0_OFFS 0x121D8 +#define QIB_7322_RxQPInvalidContextCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_TxHeadersErrCnt_0_OFFS 0x121F8 +#define QIB_7322_TxHeadersErrCnt_0_DEF 0x0000000000000000 + +#define QIB_7322_PSRcvDataCount_0_OFFS 0x12218 +#define QIB_7322_PSRcvDataCount_0_DEF 0x0000000000000000 + +#define QIB_7322_PSRcvPktsCount_0_OFFS 0x12220 +#define QIB_7322_PSRcvPktsCount_0_DEF 0x0000000000000000 + +#define QIB_7322_PSXmitDataCount_0_OFFS 0x12228 +#define QIB_7322_PSXmitDataCount_0_DEF 0x0000000000000000 + +#define QIB_7322_PSXmitPktsCount_0_OFFS 0x12230 +#define QIB_7322_PSXmitPktsCount_0_DEF 0x0000000000000000 + +#define QIB_7322_PSXmitWaitCount_0_OFFS 0x12238 +#define QIB_7322_PSXmitWaitCount_0_DEF 0x0000000000000000 + +#define QIB_7322_LBIntCnt_1_OFFS 0x13000 +#define QIB_7322_LBIntCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_TxCreditUpToDateTimeOut_1_OFFS 0x13008 +#define QIB_7322_TxCreditUpToDateTimeOut_1_DEF 0x0000000000000000 + +#define QIB_7322_TxSDmaDescCnt_1_OFFS 0x13010 +#define QIB_7322_TxSDmaDescCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_TxUnsupVLErrCnt_1_OFFS 0x13018 +#define QIB_7322_TxUnsupVLErrCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_TxDataPktCnt_1_OFFS 0x13020 +#define QIB_7322_TxDataPktCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_TxFlowPktCnt_1_OFFS 0x13028 +#define QIB_7322_TxFlowPktCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_TxDwordCnt_1_OFFS 0x13030 +#define QIB_7322_TxDwordCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_TxLenErrCnt_1_OFFS 0x13038 +#define QIB_7322_TxLenErrCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_TxMaxMinLenErrCnt_1_OFFS 0x13040 +#define QIB_7322_TxMaxMinLenErrCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_TxUnderrunCnt_1_OFFS 0x13048 +#define QIB_7322_TxUnderrunCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_TxFlowStallCnt_1_OFFS 0x13050 +#define QIB_7322_TxFlowStallCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_TxDroppedPktCnt_1_OFFS 0x13058 +#define QIB_7322_TxDroppedPktCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxDroppedPktCnt_1_OFFS 0x13060 +#define QIB_7322_RxDroppedPktCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxDataPktCnt_1_OFFS 0x13068 +#define QIB_7322_RxDataPktCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxFlowPktCnt_1_OFFS 0x13070 +#define QIB_7322_RxFlowPktCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxDwordCnt_1_OFFS 0x13078 +#define QIB_7322_RxDwordCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxLenErrCnt_1_OFFS 0x13080 +#define QIB_7322_RxLenErrCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxMaxMinLenErrCnt_1_OFFS 0x13088 +#define QIB_7322_RxMaxMinLenErrCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxICRCErrCnt_1_OFFS 0x13090 +#define QIB_7322_RxICRCErrCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxVCRCErrCnt_1_OFFS 0x13098 +#define QIB_7322_RxVCRCErrCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxFlowCtrlViolCnt_1_OFFS 0x130A0 +#define QIB_7322_RxFlowCtrlViolCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxVersionErrCnt_1_OFFS 0x130A8 +#define QIB_7322_RxVersionErrCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxLinkMalformCnt_1_OFFS 0x130B0 +#define QIB_7322_RxLinkMalformCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxEBPCnt_1_OFFS 0x130B8 +#define QIB_7322_RxEBPCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxLPCRCErrCnt_1_OFFS 0x130C0 +#define QIB_7322_RxLPCRCErrCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxBufOvflCnt_1_OFFS 0x130C8 +#define QIB_7322_RxBufOvflCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxLenTruncateCnt_1_OFFS 0x130D0 +#define QIB_7322_RxLenTruncateCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxPKeyMismatchCnt_1_OFFS 0x130E0 +#define QIB_7322_RxPKeyMismatchCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_IBLinkDownedCnt_1_OFFS 0x13180 +#define QIB_7322_IBLinkDownedCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_IBSymbolErrCnt_1_OFFS 0x13188 +#define QIB_7322_IBSymbolErrCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_IBStatusChangeCnt_1_OFFS 0x13190 +#define QIB_7322_IBStatusChangeCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_IBLinkErrRecoveryCnt_1_OFFS 0x13198 +#define QIB_7322_IBLinkErrRecoveryCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_ExcessBufferOvflCnt_1_OFFS 0x131A8 +#define QIB_7322_ExcessBufferOvflCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_LocalLinkIntegrityErrCnt_1_OFFS 0x131B0 +#define QIB_7322_LocalLinkIntegrityErrCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxVlErrCnt_1_OFFS 0x131B8 +#define QIB_7322_RxVlErrCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxDlidFltrCnt_1_OFFS 0x131C0 +#define QIB_7322_RxDlidFltrCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxVL15DroppedPktCnt_1_OFFS 0x131C8 +#define QIB_7322_RxVL15DroppedPktCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxOtherLocalPhyErrCnt_1_OFFS 0x131D0 +#define QIB_7322_RxOtherLocalPhyErrCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_RxQPInvalidContextCnt_1_OFFS 0x131D8 +#define QIB_7322_RxQPInvalidContextCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_TxHeadersErrCnt_1_OFFS 0x131F8 +#define QIB_7322_TxHeadersErrCnt_1_DEF 0x0000000000000000 + +#define QIB_7322_PSRcvDataCount_1_OFFS 0x13218 +#define QIB_7322_PSRcvDataCount_1_DEF 0x0000000000000000 + +#define QIB_7322_PSRcvPktsCount_1_OFFS 0x13220 +#define QIB_7322_PSRcvPktsCount_1_DEF 0x0000000000000000 + +#define QIB_7322_PSXmitDataCount_1_OFFS 0x13228 +#define QIB_7322_PSXmitDataCount_1_DEF 0x0000000000000000 + +#define QIB_7322_PSXmitPktsCount_1_OFFS 0x13230 +#define QIB_7322_PSXmitPktsCount_1_DEF 0x0000000000000000 + +#define QIB_7322_PSXmitWaitCount_1_OFFS 0x13238 +#define QIB_7322_PSXmitWaitCount_1_DEF 0x0000000000000000 + +#define QIB_7322_RcvEgrArray_OFFS 0x14000 +#define QIB_7322_RcvEgrArray_DEF 0x0000000000000000 +#define QIB_7322_RcvEgrArray_RT_BufSize_LSB 0x25 +#define QIB_7322_RcvEgrArray_RT_BufSize_MSB 0x27 +#define QIB_7322_RcvEgrArray_RT_BufSize_RMASK 0x7 +#define QIB_7322_RcvEgrArray_RT_Addr_LSB 0x0 +#define QIB_7322_RcvEgrArray_RT_Addr_MSB 0x24 +#define QIB_7322_RcvEgrArray_RT_Addr_RMASK 0x1FFFFFFFFF + +#define QIB_7322_RcvTIDArray0_OFFS 0x50000 +#define QIB_7322_RcvTIDArray0_DEF 0x0000000000000000 +#define QIB_7322_RcvTIDArray0_RT_BufSize_LSB 0x25 +#define QIB_7322_RcvTIDArray0_RT_BufSize_MSB 0x27 +#define QIB_7322_RcvTIDArray0_RT_BufSize_RMASK 0x7 +#define QIB_7322_RcvTIDArray0_RT_Addr_LSB 0x0 +#define QIB_7322_RcvTIDArray0_RT_Addr_MSB 0x24 +#define QIB_7322_RcvTIDArray0_RT_Addr_RMASK 0x1FFFFFFFFF + +#define QIB_7322_IBSD_DDS_MAP_TABLE_0_OFFS 0xD0000 +#define QIB_7322_IBSD_DDS_MAP_TABLE_0_DEF 0x0000000000000000 + +#define QIB_7322_RcvHdrTail0_OFFS 0x200000 +#define QIB_7322_RcvHdrTail0_DEF 0x0000000000000000 + +#define QIB_7322_RcvHdrHead0_OFFS 0x200008 +#define QIB_7322_RcvHdrHead0_DEF 0x0000000000000000 +#define QIB_7322_RcvHdrHead0_counter_LSB 0x20 +#define QIB_7322_RcvHdrHead0_counter_MSB 0x2F +#define QIB_7322_RcvHdrHead0_counter_RMASK 0xFFFF +#define QIB_7322_RcvHdrHead0_RcvHeadPointer_LSB 0x0 +#define QIB_7322_RcvHdrHead0_RcvHeadPointer_MSB 0x1F +#define QIB_7322_RcvHdrHead0_RcvHeadPointer_RMASK 0xFFFFFFFF + +#define QIB_7322_RcvEgrIndexTail0_OFFS 0x200010 +#define QIB_7322_RcvEgrIndexTail0_DEF 0x0000000000000000 + +#define QIB_7322_RcvEgrIndexHead0_OFFS 0x200018 +#define QIB_7322_RcvEgrIndexHead0_DEF 0x0000000000000000 + +#define QIB_7322_RcvTIDFlowTable0_OFFS 0x201000 +#define QIB_7322_RcvTIDFlowTable0_DEF 0x0000000000000000 +#define QIB_7322_RcvTIDFlowTable0_GenMismatch_LSB 0x1C +#define QIB_7322_RcvTIDFlowTable0_GenMismatch_MSB 0x1C +#define QIB_7322_RcvTIDFlowTable0_GenMismatch_RMASK 0x1 +#define QIB_7322_RcvTIDFlowTable0_SeqMismatch_LSB 0x1B +#define QIB_7322_RcvTIDFlowTable0_SeqMismatch_MSB 0x1B +#define QIB_7322_RcvTIDFlowTable0_SeqMismatch_RMASK 0x1 +#define QIB_7322_RcvTIDFlowTable0_KeepOnGenErr_LSB 0x16 +#define QIB_7322_RcvTIDFlowTable0_KeepOnGenErr_MSB 0x16 +#define QIB_7322_RcvTIDFlowTable0_KeepOnGenErr_RMASK 0x1 +#define QIB_7322_RcvTIDFlowTable0_KeepAfterSeqErr_LSB 0x15 +#define QIB_7322_RcvTIDFlowTable0_KeepAfterSeqErr_MSB 0x15 +#define QIB_7322_RcvTIDFlowTable0_KeepAfterSeqErr_RMASK 0x1 +#define QIB_7322_RcvTIDFlowTable0_HdrSuppEnabled_LSB 0x14 +#define QIB_7322_RcvTIDFlowTable0_HdrSuppEnabled_MSB 0x14 +#define QIB_7322_RcvTIDFlowTable0_HdrSuppEnabled_RMASK 0x1 +#define QIB_7322_RcvTIDFlowTable0_FlowValid_LSB 0x13 +#define QIB_7322_RcvTIDFlowTable0_FlowValid_MSB 0x13 +#define QIB_7322_RcvTIDFlowTable0_FlowValid_RMASK 0x1 +#define QIB_7322_RcvTIDFlowTable0_GenVal_LSB 0xB +#define QIB_7322_RcvTIDFlowTable0_GenVal_MSB 0x12 +#define QIB_7322_RcvTIDFlowTable0_GenVal_RMASK 0xFF +#define QIB_7322_RcvTIDFlowTable0_SeqNum_LSB 0x0 +#define QIB_7322_RcvTIDFlowTable0_SeqNum_MSB 0xA +#define QIB_7322_RcvTIDFlowTable0_SeqNum_RMASK 0x7FF diff --git a/drivers/infiniband/hw/qib/qib_common.h b/drivers/infiniband/hw/qib/qib_common.h new file mode 100644 index 000000000..cf652831d --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_common.h @@ -0,0 +1,798 @@ +/* + * Copyright (c) 2006, 2007, 2008, 2009, 2010 QLogic Corporation. + * All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef _QIB_COMMON_H +#define _QIB_COMMON_H + +/* + * This file contains defines, structures, etc. that are used + * to communicate between kernel and user code. + */ + +/* This is the IEEE-assigned OUI for QLogic Inc. QLogic_IB */ +#define QIB_SRC_OUI_1 0x00 +#define QIB_SRC_OUI_2 0x11 +#define QIB_SRC_OUI_3 0x75 + +/* version of protocol header (known to chip also). In the long run, + * we should be able to generate and accept a range of version numbers; + * for now we only accept one, and it's compiled in. + */ +#define IPS_PROTO_VERSION 2 + +/* + * These are compile time constants that you may want to enable or disable + * if you are trying to debug problems with code or performance. + * QIB_VERBOSE_TRACING define as 1 if you want additional tracing in + * fastpath code + * QIB_TRACE_REGWRITES define as 1 if you want register writes to be + * traced in fastpath code + * _QIB_TRACING define as 0 if you want to remove all tracing in a + * compilation unit + */ + +/* + * The value in the BTH QP field that QLogic_IB uses to differentiate + * an qlogic_ib protocol IB packet vs standard IB transport + * This it needs to be even (0x656b78), because the LSB is sometimes + * used for the MSB of context. The change may cause a problem + * interoperating with older software. + */ +#define QIB_KD_QP 0x656b78 + +/* + * These are the status bits readable (in ascii form, 64bit value) + * from the "status" sysfs file. For binary compatibility, values + * must remain as is; removed states can be reused for different + * purposes. + */ +#define QIB_STATUS_INITTED 0x1 /* basic initialization done */ +/* Chip has been found and initted */ +#define QIB_STATUS_CHIP_PRESENT 0x20 +/* IB link is at ACTIVE, usable for data traffic */ +#define QIB_STATUS_IB_READY 0x40 +/* link is configured, LID, MTU, etc. have been set */ +#define QIB_STATUS_IB_CONF 0x80 +/* A Fatal hardware error has occurred. */ +#define QIB_STATUS_HWERROR 0x200 + +/* + * The list of usermode accessible registers. Also see Reg_* later in file. + */ +enum qib_ureg { + /* (RO) DMA RcvHdr to be used next. */ + ur_rcvhdrtail = 0, + /* (RW) RcvHdr entry to be processed next by host. */ + ur_rcvhdrhead = 1, + /* (RO) Index of next Eager index to use. */ + ur_rcvegrindextail = 2, + /* (RW) Eager TID to be processed next */ + ur_rcvegrindexhead = 3, + /* For internal use only; max register number. */ + _QIB_UregMax +}; + +/* bit values for spi_runtime_flags */ +#define QIB_RUNTIME_PCIE 0x0002 +#define QIB_RUNTIME_FORCE_WC_ORDER 0x0004 +#define QIB_RUNTIME_RCVHDR_COPY 0x0008 +#define QIB_RUNTIME_MASTER 0x0010 +#define QIB_RUNTIME_RCHK 0x0020 +#define QIB_RUNTIME_NODMA_RTAIL 0x0080 +#define QIB_RUNTIME_SPECIAL_TRIGGER 0x0100 +#define QIB_RUNTIME_SDMA 0x0200 +#define QIB_RUNTIME_FORCE_PIOAVAIL 0x0400 +#define QIB_RUNTIME_PIO_REGSWAPPED 0x0800 +#define QIB_RUNTIME_CTXT_MSB_IN_QP 0x1000 +#define QIB_RUNTIME_CTXT_REDIRECT 0x2000 +#define QIB_RUNTIME_HDRSUPP 0x4000 + +/* + * This structure is returned by qib_userinit() immediately after + * open to get implementation-specific info, and info specific to this + * instance. + * + * This struct must have explict pad fields where type sizes + * may result in different alignments between 32 and 64 bit + * programs, since the 64 bit * bit kernel requires the user code + * to have matching offsets + */ +struct qib_base_info { + /* version of hardware, for feature checking. */ + __u32 spi_hw_version; + /* version of software, for feature checking. */ + __u32 spi_sw_version; + /* QLogic_IB context assigned, goes into sent packets */ + __u16 spi_ctxt; + __u16 spi_subctxt; + /* + * IB MTU, packets IB data must be less than this. + * The MTU is in bytes, and will be a multiple of 4 bytes. + */ + __u32 spi_mtu; + /* + * Size of a PIO buffer. Any given packet's total size must be less + * than this (in words). Included is the starting control word, so + * if 513 is returned, then total pkt size is 512 words or less. + */ + __u32 spi_piosize; + /* size of the TID cache in qlogic_ib, in entries */ + __u32 spi_tidcnt; + /* size of the TID Eager list in qlogic_ib, in entries */ + __u32 spi_tidegrcnt; + /* size of a single receive header queue entry in words. */ + __u32 spi_rcvhdrent_size; + /* + * Count of receive header queue entries allocated. + * This may be less than the spu_rcvhdrcnt passed in!. + */ + __u32 spi_rcvhdr_cnt; + + /* per-chip and other runtime features bitmap (QIB_RUNTIME_*) */ + __u32 spi_runtime_flags; + + /* address where hardware receive header queue is mapped */ + __u64 spi_rcvhdr_base; + + /* user program. */ + + /* base address of eager TID receive buffers used by hardware. */ + __u64 spi_rcv_egrbufs; + + /* Allocated by initialization code, not by protocol. */ + + /* + * Size of each TID buffer in host memory, starting at + * spi_rcv_egrbufs. The buffers are virtually contiguous. + */ + __u32 spi_rcv_egrbufsize; + /* + * The special QP (queue pair) value that identifies an qlogic_ib + * protocol packet from standard IB packets. More, probably much + * more, to be added. + */ + __u32 spi_qpair; + + /* + * User register base for init code, not to be used directly by + * protocol or applications. Always points to chip registers, + * for normal or shared context. + */ + __u64 spi_uregbase; + /* + * Maximum buffer size in bytes that can be used in a single TID + * entry (assuming the buffer is aligned to this boundary). This is + * the minimum of what the hardware and software support Guaranteed + * to be a power of 2. + */ + __u32 spi_tid_maxsize; + /* + * alignment of each pio send buffer (byte count + * to add to spi_piobufbase to get to second buffer) + */ + __u32 spi_pioalign; + /* + * The index of the first pio buffer available to this process; + * needed to do lookup in spi_pioavailaddr; not added to + * spi_piobufbase. + */ + __u32 spi_pioindex; + /* number of buffers mapped for this process */ + __u32 spi_piocnt; + + /* + * Base address of writeonly pio buffers for this process. + * Each buffer has spi_piosize words, and is aligned on spi_pioalign + * boundaries. spi_piocnt buffers are mapped from this address + */ + __u64 spi_piobufbase; + + /* + * Base address of readonly memory copy of the pioavail registers. + * There are 2 bits for each buffer. + */ + __u64 spi_pioavailaddr; + + /* + * Address where driver updates a copy of the interface and driver + * status (QIB_STATUS_*) as a 64 bit value. It's followed by a + * link status qword (formerly combined with driver status), then a + * string indicating hardware error, if there was one. + */ + __u64 spi_status; + + /* number of chip ctxts available to user processes */ + __u32 spi_nctxts; + __u16 spi_unit; /* unit number of chip we are using */ + __u16 spi_port; /* IB port number we are using */ + /* num bufs in each contiguous set */ + __u32 spi_rcv_egrperchunk; + /* size in bytes of each contiguous set */ + __u32 spi_rcv_egrchunksize; + /* total size of mmap to cover full rcvegrbuffers */ + __u32 spi_rcv_egrbuftotlen; + __u32 spi_rhf_offset; /* dword offset in hdrqent for rcvhdr flags */ + /* address of readonly memory copy of the rcvhdrq tail register. */ + __u64 spi_rcvhdr_tailaddr; + + /* + * shared memory pages for subctxts if ctxt is shared; these cover + * all the processes in the group sharing a single context. + * all have enough space for the num_subcontexts value on this job. + */ + __u64 spi_subctxt_uregbase; + __u64 spi_subctxt_rcvegrbuf; + __u64 spi_subctxt_rcvhdr_base; + + /* shared memory page for send buffer disarm status */ + __u64 spi_sendbuf_status; +} __aligned(8); + +/* + * This version number is given to the driver by the user code during + * initialization in the spu_userversion field of qib_user_info, so + * the driver can check for compatibility with user code. + * + * The major version changes when data structures + * change in an incompatible way. The driver must be the same or higher + * for initialization to succeed. In some cases, a higher version + * driver will not interoperate with older software, and initialization + * will return an error. + */ +#define QIB_USER_SWMAJOR 1 + +/* + * Minor version differences are always compatible + * a within a major version, however if user software is larger + * than driver software, some new features and/or structure fields + * may not be implemented; the user code must deal with this if it + * cares, or it must abort after initialization reports the difference. + */ +#define QIB_USER_SWMINOR 13 + +#define QIB_USER_SWVERSION ((QIB_USER_SWMAJOR << 16) | QIB_USER_SWMINOR) + +#ifndef QIB_KERN_TYPE +#define QIB_KERN_TYPE 0 +#endif + +/* + * Similarly, this is the kernel version going back to the user. It's + * slightly different, in that we want to tell if the driver was built as + * part of a QLogic release, or from the driver from openfabrics.org, + * kernel.org, or a standard distribution, for support reasons. + * The high bit is 0 for non-QLogic and 1 for QLogic-built/supplied. + * + * It's returned by the driver to the user code during initialization in the + * spi_sw_version field of qib_base_info, so the user code can in turn + * check for compatibility with the kernel. +*/ +#define QIB_KERN_SWVERSION ((QIB_KERN_TYPE << 31) | QIB_USER_SWVERSION) + +/* + * Define the driver version number. This is something that refers only + * to the driver itself, not the software interfaces it supports. + */ +#define QIB_DRIVER_VERSION_BASE "1.11" + +/* create the final driver version string */ +#ifdef QIB_IDSTR +#define QIB_DRIVER_VERSION QIB_DRIVER_VERSION_BASE " " QIB_IDSTR +#else +#define QIB_DRIVER_VERSION QIB_DRIVER_VERSION_BASE +#endif + +/* + * If the unit is specified via open, HCA choice is fixed. If port is + * specified, it's also fixed. Otherwise we try to spread contexts + * across ports and HCAs, using different algorithims. WITHIN is + * the old default, prior to this mechanism. + */ +#define QIB_PORT_ALG_ACROSS 0 /* round robin contexts across HCAs, then + * ports; this is the default */ +#define QIB_PORT_ALG_WITHIN 1 /* use all contexts on an HCA (round robin + * active ports within), then next HCA */ +#define QIB_PORT_ALG_COUNT 2 /* number of algorithm choices */ + +/* + * This structure is passed to qib_userinit() to tell the driver where + * user code buffers are, sizes, etc. The offsets and sizes of the + * fields must remain unchanged, for binary compatibility. It can + * be extended, if userversion is changed so user code can tell, if needed + */ +struct qib_user_info { + /* + * version of user software, to detect compatibility issues. + * Should be set to QIB_USER_SWVERSION. + */ + __u32 spu_userversion; + + __u32 _spu_unused2; + + /* size of struct base_info to write to */ + __u32 spu_base_info_size; + + __u32 spu_port_alg; /* which QIB_PORT_ALG_*; unused user minor < 11 */ + + /* + * If two or more processes wish to share a context, each process + * must set the spu_subctxt_cnt and spu_subctxt_id to the same + * values. The only restriction on the spu_subctxt_id is that + * it be unique for a given node. + */ + __u16 spu_subctxt_cnt; + __u16 spu_subctxt_id; + + __u32 spu_port; /* IB port requested by user if > 0 */ + + /* + * address of struct base_info to write to + */ + __u64 spu_base_info; + +} __aligned(8); + +/* User commands. */ + +/* 16 available, was: old set up userspace (for old user code) */ +#define QIB_CMD_CTXT_INFO 17 /* find out what resources we got */ +#define QIB_CMD_RECV_CTRL 18 /* control receipt of packets */ +#define QIB_CMD_TID_UPDATE 19 /* update expected TID entries */ +#define QIB_CMD_TID_FREE 20 /* free expected TID entries */ +#define QIB_CMD_SET_PART_KEY 21 /* add partition key */ +/* 22 available, was: return info on slave processes (for old user code) */ +#define QIB_CMD_ASSIGN_CTXT 23 /* allocate HCA and ctxt */ +#define QIB_CMD_USER_INIT 24 /* set up userspace */ +#define QIB_CMD_UNUSED_1 25 +#define QIB_CMD_UNUSED_2 26 +#define QIB_CMD_PIOAVAILUPD 27 /* force an update of PIOAvail reg */ +#define QIB_CMD_POLL_TYPE 28 /* set the kind of polling we want */ +#define QIB_CMD_ARMLAUNCH_CTRL 29 /* armlaunch detection control */ +/* 30 is unused */ +#define QIB_CMD_SDMA_INFLIGHT 31 /* sdma inflight counter request */ +#define QIB_CMD_SDMA_COMPLETE 32 /* sdma completion counter request */ +/* 33 available, was a testing feature */ +#define QIB_CMD_DISARM_BUFS 34 /* disarm send buffers w/ errors */ +#define QIB_CMD_ACK_EVENT 35 /* ack & clear bits */ +#define QIB_CMD_CPUS_LIST 36 /* list of cpus allocated, for pinned + * processes: qib_cpus_list */ + +/* + * QIB_CMD_ACK_EVENT obsoletes QIB_CMD_DISARM_BUFS, but we keep it for + * compatibility with libraries from previous release. The ACK_EVENT + * will take appropriate driver action (if any, just DISARM for now), + * then clear the bits passed in as part of the mask. These bits are + * in the first 64bit word at spi_sendbuf_status, and are passed to + * the driver in the event_mask union as well. + */ +#define _QIB_EVENT_DISARM_BUFS_BIT 0 +#define _QIB_EVENT_LINKDOWN_BIT 1 +#define _QIB_EVENT_LID_CHANGE_BIT 2 +#define _QIB_EVENT_LMC_CHANGE_BIT 3 +#define _QIB_EVENT_SL2VL_CHANGE_BIT 4 +#define _QIB_MAX_EVENT_BIT _QIB_EVENT_SL2VL_CHANGE_BIT + +#define QIB_EVENT_DISARM_BUFS_BIT (1UL << _QIB_EVENT_DISARM_BUFS_BIT) +#define QIB_EVENT_LINKDOWN_BIT (1UL << _QIB_EVENT_LINKDOWN_BIT) +#define QIB_EVENT_LID_CHANGE_BIT (1UL << _QIB_EVENT_LID_CHANGE_BIT) +#define QIB_EVENT_LMC_CHANGE_BIT (1UL << _QIB_EVENT_LMC_CHANGE_BIT) +#define QIB_EVENT_SL2VL_CHANGE_BIT (1UL << _QIB_EVENT_SL2VL_CHANGE_BIT) + + +/* + * Poll types + */ +#define QIB_POLL_TYPE_ANYRCV 0x0 +#define QIB_POLL_TYPE_URGENT 0x1 + +struct qib_ctxt_info { + __u16 num_active; /* number of active units */ + __u16 unit; /* unit (chip) assigned to caller */ + __u16 port; /* IB port assigned to caller (1-based) */ + __u16 ctxt; /* ctxt on unit assigned to caller */ + __u16 subctxt; /* subctxt on unit assigned to caller */ + __u16 num_ctxts; /* number of ctxts available on unit */ + __u16 num_subctxts; /* number of subctxts opened on ctxt */ + __u16 rec_cpu; /* cpu # for affinity (ffff if none) */ +}; + +struct qib_tid_info { + __u32 tidcnt; + /* make structure same size in 32 and 64 bit */ + __u32 tid__unused; + /* virtual address of first page in transfer */ + __u64 tidvaddr; + /* pointer (same size 32/64 bit) to __u16 tid array */ + __u64 tidlist; + + /* + * pointer (same size 32/64 bit) to bitmap of TIDs used + * for this call; checked for being large enough at open + */ + __u64 tidmap; +}; + +struct qib_cmd { + __u32 type; /* command type */ + union { + struct qib_tid_info tid_info; + struct qib_user_info user_info; + + /* + * address in userspace where we should put the sdma + * inflight counter + */ + __u64 sdma_inflight; + /* + * address in userspace where we should put the sdma + * completion counter + */ + __u64 sdma_complete; + /* address in userspace of struct qib_ctxt_info to + write result to */ + __u64 ctxt_info; + /* enable/disable receipt of packets */ + __u32 recv_ctrl; + /* enable/disable armlaunch errors (non-zero to enable) */ + __u32 armlaunch_ctrl; + /* partition key to set */ + __u16 part_key; + /* user address of __u32 bitmask of active slaves */ + __u64 slave_mask_addr; + /* type of polling we want */ + __u16 poll_type; + /* back pressure enable bit for one particular context */ + __u8 ctxt_bp; + /* qib_user_event_ack(), IPATH_EVENT_* bits */ + __u64 event_mask; + } cmd; +}; + +struct qib_iovec { + /* Pointer to data, but same size 32 and 64 bit */ + __u64 iov_base; + + /* + * Length of data; don't need 64 bits, but want + * qib_sendpkt to remain same size as before 32 bit changes, so... + */ + __u64 iov_len; +}; + +/* + * Describes a single packet for send. Each packet can have one or more + * buffers, but the total length (exclusive of IB headers) must be less + * than the MTU, and if using the PIO method, entire packet length, + * including IB headers, must be less than the qib_piosize value (words). + * Use of this necessitates including sys/uio.h + */ +struct __qib_sendpkt { + __u32 sps_flags; /* flags for packet (TBD) */ + __u32 sps_cnt; /* number of entries to use in sps_iov */ + /* array of iov's describing packet. TEMPORARY */ + struct qib_iovec sps_iov[4]; +}; + +/* + * Diagnostics can send a packet by "writing" the following + * structs to the diag data special file. + * This allows a custom + * pbc (+ static rate) qword, so that special modes and deliberate + * changes to CRCs can be used. The elements were also re-ordered + * for better alignment and to avoid padding issues. + */ +#define _DIAG_XPKT_VERS 3 +struct qib_diag_xpkt { + __u16 version; + __u16 unit; + __u16 port; + __u16 len; + __u64 data; + __u64 pbc_wd; +}; + +/* + * Data layout in I2C flash (for GUID, etc.) + * All fields are little-endian binary unless otherwise stated + */ +#define QIB_FLASH_VERSION 2 +struct qib_flash { + /* flash layout version (QIB_FLASH_VERSION) */ + __u8 if_fversion; + /* checksum protecting if_length bytes */ + __u8 if_csum; + /* + * valid length (in use, protected by if_csum), including + * if_fversion and if_csum themselves) + */ + __u8 if_length; + /* the GUID, in network order */ + __u8 if_guid[8]; + /* number of GUIDs to use, starting from if_guid */ + __u8 if_numguid; + /* the (last 10 characters of) board serial number, in ASCII */ + char if_serial[12]; + /* board mfg date (YYYYMMDD ASCII) */ + char if_mfgdate[8]; + /* last board rework/test date (YYYYMMDD ASCII) */ + char if_testdate[8]; + /* logging of error counts, TBD */ + __u8 if_errcntp[4]; + /* powered on hours, updated at driver unload */ + __u8 if_powerhour[2]; + /* ASCII free-form comment field */ + char if_comment[32]; + /* Backwards compatible prefix for longer QLogic Serial Numbers */ + char if_sprefix[4]; + /* 82 bytes used, min flash size is 128 bytes */ + __u8 if_future[46]; +}; + +/* + * These are the counters implemented in the chip, and are listed in order. + * The InterCaps naming is taken straight from the chip spec. + */ +struct qlogic_ib_counters { + __u64 LBIntCnt; + __u64 LBFlowStallCnt; + __u64 TxSDmaDescCnt; /* was Reserved1 */ + __u64 TxUnsupVLErrCnt; + __u64 TxDataPktCnt; + __u64 TxFlowPktCnt; + __u64 TxDwordCnt; + __u64 TxLenErrCnt; + __u64 TxMaxMinLenErrCnt; + __u64 TxUnderrunCnt; + __u64 TxFlowStallCnt; + __u64 TxDroppedPktCnt; + __u64 RxDroppedPktCnt; + __u64 RxDataPktCnt; + __u64 RxFlowPktCnt; + __u64 RxDwordCnt; + __u64 RxLenErrCnt; + __u64 RxMaxMinLenErrCnt; + __u64 RxICRCErrCnt; + __u64 RxVCRCErrCnt; + __u64 RxFlowCtrlErrCnt; + __u64 RxBadFormatCnt; + __u64 RxLinkProblemCnt; + __u64 RxEBPCnt; + __u64 RxLPCRCErrCnt; + __u64 RxBufOvflCnt; + __u64 RxTIDFullErrCnt; + __u64 RxTIDValidErrCnt; + __u64 RxPKeyMismatchCnt; + __u64 RxP0HdrEgrOvflCnt; + __u64 RxP1HdrEgrOvflCnt; + __u64 RxP2HdrEgrOvflCnt; + __u64 RxP3HdrEgrOvflCnt; + __u64 RxP4HdrEgrOvflCnt; + __u64 RxP5HdrEgrOvflCnt; + __u64 RxP6HdrEgrOvflCnt; + __u64 RxP7HdrEgrOvflCnt; + __u64 RxP8HdrEgrOvflCnt; + __u64 RxP9HdrEgrOvflCnt; + __u64 RxP10HdrEgrOvflCnt; + __u64 RxP11HdrEgrOvflCnt; + __u64 RxP12HdrEgrOvflCnt; + __u64 RxP13HdrEgrOvflCnt; + __u64 RxP14HdrEgrOvflCnt; + __u64 RxP15HdrEgrOvflCnt; + __u64 RxP16HdrEgrOvflCnt; + __u64 IBStatusChangeCnt; + __u64 IBLinkErrRecoveryCnt; + __u64 IBLinkDownedCnt; + __u64 IBSymbolErrCnt; + __u64 RxVL15DroppedPktCnt; + __u64 RxOtherLocalPhyErrCnt; + __u64 PcieRetryBufDiagQwordCnt; + __u64 ExcessBufferOvflCnt; + __u64 LocalLinkIntegrityErrCnt; + __u64 RxVlErrCnt; + __u64 RxDlidFltrCnt; +}; + +/* + * The next set of defines are for packet headers, and chip register + * and memory bits that are visible to and/or used by user-mode software. + */ + +/* RcvHdrFlags bits */ +#define QLOGIC_IB_RHF_LENGTH_MASK 0x7FF +#define QLOGIC_IB_RHF_LENGTH_SHIFT 0 +#define QLOGIC_IB_RHF_RCVTYPE_MASK 0x7 +#define QLOGIC_IB_RHF_RCVTYPE_SHIFT 11 +#define QLOGIC_IB_RHF_EGRINDEX_MASK 0xFFF +#define QLOGIC_IB_RHF_EGRINDEX_SHIFT 16 +#define QLOGIC_IB_RHF_SEQ_MASK 0xF +#define QLOGIC_IB_RHF_SEQ_SHIFT 0 +#define QLOGIC_IB_RHF_HDRQ_OFFSET_MASK 0x7FF +#define QLOGIC_IB_RHF_HDRQ_OFFSET_SHIFT 4 +#define QLOGIC_IB_RHF_H_ICRCERR 0x80000000 +#define QLOGIC_IB_RHF_H_VCRCERR 0x40000000 +#define QLOGIC_IB_RHF_H_PARITYERR 0x20000000 +#define QLOGIC_IB_RHF_H_LENERR 0x10000000 +#define QLOGIC_IB_RHF_H_MTUERR 0x08000000 +#define QLOGIC_IB_RHF_H_IHDRERR 0x04000000 +#define QLOGIC_IB_RHF_H_TIDERR 0x02000000 +#define QLOGIC_IB_RHF_H_MKERR 0x01000000 +#define QLOGIC_IB_RHF_H_IBERR 0x00800000 +#define QLOGIC_IB_RHF_H_ERR_MASK 0xFF800000 +#define QLOGIC_IB_RHF_L_USE_EGR 0x80000000 +#define QLOGIC_IB_RHF_L_SWA 0x00008000 +#define QLOGIC_IB_RHF_L_SWB 0x00004000 + +/* qlogic_ib header fields */ +#define QLOGIC_IB_I_VERS_MASK 0xF +#define QLOGIC_IB_I_VERS_SHIFT 28 +#define QLOGIC_IB_I_CTXT_MASK 0xF +#define QLOGIC_IB_I_CTXT_SHIFT 24 +#define QLOGIC_IB_I_TID_MASK 0x7FF +#define QLOGIC_IB_I_TID_SHIFT 13 +#define QLOGIC_IB_I_OFFSET_MASK 0x1FFF +#define QLOGIC_IB_I_OFFSET_SHIFT 0 + +/* K_PktFlags bits */ +#define QLOGIC_IB_KPF_INTR 0x1 +#define QLOGIC_IB_KPF_SUBCTXT_MASK 0x3 +#define QLOGIC_IB_KPF_SUBCTXT_SHIFT 1 + +#define QLOGIC_IB_MAX_SUBCTXT 4 + +/* SendPIO per-buffer control */ +#define QLOGIC_IB_SP_TEST 0x40 +#define QLOGIC_IB_SP_TESTEBP 0x20 +#define QLOGIC_IB_SP_TRIGGER_SHIFT 15 + +/* SendPIOAvail bits */ +#define QLOGIC_IB_SENDPIOAVAIL_BUSY_SHIFT 1 +#define QLOGIC_IB_SENDPIOAVAIL_CHECK_SHIFT 0 + +/* qlogic_ib header format */ +struct qib_header { + /* + * Version - 4 bits, Context - 4 bits, TID - 10 bits and Offset - + * 14 bits before ECO change ~28 Dec 03. After that, Vers 4, + * Context 4, TID 11, offset 13. + */ + __le32 ver_ctxt_tid_offset; + __le16 chksum; + __le16 pkt_flags; +}; + +/* + * qlogic_ib user message header format. + * This structure contains the first 4 fields common to all protocols + * that employ qlogic_ib. + */ +struct qib_message_header { + __be16 lrh[4]; + __be32 bth[3]; + /* fields below this point are in host byte order */ + struct qib_header iph; + /* fields below are simplified, but should match PSM */ + /* some are accessed by driver when packet spliting is needed */ + __u8 sub_opcode; + __u8 flags; + __u16 commidx; + __u32 ack_seq_num; + __u8 flowid; + __u8 hdr_dlen; + __u16 mqhdr; + __u32 uwords[4]; +}; + +/* sequence number bits for message */ +union qib_seqnum { + struct { + __u32 seq:11; + __u32 gen:8; + __u32 flow:5; + }; + struct { + __u32 pkt:16; + __u32 msg:8; + }; + __u32 val; +}; + +/* qib receiving-dma tid-session-member */ +struct qib_tid_session_member { + __u16 tid; + __u16 offset; + __u16 length; +}; + +/* IB - LRH header consts */ +#define QIB_LRH_GRH 0x0003 /* 1. word of IB LRH - next header: GRH */ +#define QIB_LRH_BTH 0x0002 /* 1. word of IB LRH - next header: BTH */ + +/* misc. */ +#define SIZE_OF_CRC 1 + +#define QIB_DEFAULT_P_KEY 0xFFFF +#define QIB_PSN_MASK 0xFFFFFF +#define QIB_EAGER_TID_ID QLOGIC_IB_I_TID_MASK +#define QIB_MULTICAST_QPN 0xFFFFFF + +/* Receive Header Queue: receive type (from qlogic_ib) */ +#define RCVHQ_RCV_TYPE_EXPECTED 0 +#define RCVHQ_RCV_TYPE_EAGER 1 +#define RCVHQ_RCV_TYPE_NON_KD 2 +#define RCVHQ_RCV_TYPE_ERROR 3 + +#define QIB_HEADER_QUEUE_WORDS 9 + +/* functions for extracting fields from rcvhdrq entries for the driver. + */ +static inline __u32 qib_hdrget_err_flags(const __le32 *rbuf) +{ + return __le32_to_cpu(rbuf[1]) & QLOGIC_IB_RHF_H_ERR_MASK; +} + +static inline __u32 qib_hdrget_rcv_type(const __le32 *rbuf) +{ + return (__le32_to_cpu(rbuf[0]) >> QLOGIC_IB_RHF_RCVTYPE_SHIFT) & + QLOGIC_IB_RHF_RCVTYPE_MASK; +} + +static inline __u32 qib_hdrget_length_in_bytes(const __le32 *rbuf) +{ + return ((__le32_to_cpu(rbuf[0]) >> QLOGIC_IB_RHF_LENGTH_SHIFT) & + QLOGIC_IB_RHF_LENGTH_MASK) << 2; +} + +static inline __u32 qib_hdrget_index(const __le32 *rbuf) +{ + return (__le32_to_cpu(rbuf[0]) >> QLOGIC_IB_RHF_EGRINDEX_SHIFT) & + QLOGIC_IB_RHF_EGRINDEX_MASK; +} + +static inline __u32 qib_hdrget_seq(const __le32 *rbuf) +{ + return (__le32_to_cpu(rbuf[1]) >> QLOGIC_IB_RHF_SEQ_SHIFT) & + QLOGIC_IB_RHF_SEQ_MASK; +} + +static inline __u32 qib_hdrget_offset(const __le32 *rbuf) +{ + return (__le32_to_cpu(rbuf[1]) >> QLOGIC_IB_RHF_HDRQ_OFFSET_SHIFT) & + QLOGIC_IB_RHF_HDRQ_OFFSET_MASK; +} + +static inline __u32 qib_hdrget_use_egr_buf(const __le32 *rbuf) +{ + return __le32_to_cpu(rbuf[0]) & QLOGIC_IB_RHF_L_USE_EGR; +} +#endif /* _QIB_COMMON_H */ diff --git a/drivers/infiniband/hw/qib/qib_debugfs.c b/drivers/infiniband/hw/qib/qib_debugfs.c new file mode 100644 index 000000000..caeb77d07 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_debugfs.c @@ -0,0 +1,274 @@ +/* + * Copyright (c) 2013 - 2017 Intel Corporation. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include <linux/debugfs.h> +#include <linux/seq_file.h> +#include <linux/kernel.h> +#include <linux/export.h> + +#include "qib.h" +#include "qib_verbs.h" +#include "qib_debugfs.h" + +static struct dentry *qib_dbg_root; + +#define DEBUGFS_FILE(name) \ +static const struct seq_operations _##name##_seq_ops = { \ + .start = _##name##_seq_start, \ + .next = _##name##_seq_next, \ + .stop = _##name##_seq_stop, \ + .show = _##name##_seq_show \ +}; \ +static int _##name##_open(struct inode *inode, struct file *s) \ +{ \ + struct seq_file *seq; \ + int ret; \ + ret = seq_open(s, &_##name##_seq_ops); \ + if (ret) \ + return ret; \ + seq = s->private_data; \ + seq->private = inode->i_private; \ + return 0; \ +} \ +static const struct file_operations _##name##_file_ops = { \ + .owner = THIS_MODULE, \ + .open = _##name##_open, \ + .read = seq_read, \ + .llseek = seq_lseek, \ + .release = seq_release \ +}; + +static void *_opcode_stats_seq_start(struct seq_file *s, loff_t *pos) +{ + struct qib_opcode_stats_perctx *opstats; + + if (*pos >= ARRAY_SIZE(opstats->stats)) + return NULL; + return pos; +} + +static void *_opcode_stats_seq_next(struct seq_file *s, void *v, loff_t *pos) +{ + struct qib_opcode_stats_perctx *opstats; + + ++*pos; + if (*pos >= ARRAY_SIZE(opstats->stats)) + return NULL; + return pos; +} + + +static void _opcode_stats_seq_stop(struct seq_file *s, void *v) +{ + /* nothing allocated */ +} + +static int _opcode_stats_seq_show(struct seq_file *s, void *v) +{ + loff_t *spos = v; + loff_t i = *spos, j; + u64 n_packets = 0, n_bytes = 0; + struct qib_ibdev *ibd = (struct qib_ibdev *)s->private; + struct qib_devdata *dd = dd_from_dev(ibd); + + for (j = 0; j < dd->first_user_ctxt; j++) { + if (!dd->rcd[j]) + continue; + n_packets += dd->rcd[j]->opstats->stats[i].n_packets; + n_bytes += dd->rcd[j]->opstats->stats[i].n_bytes; + } + if (!n_packets && !n_bytes) + return SEQ_SKIP; + seq_printf(s, "%02llx %llu/%llu\n", i, + (unsigned long long) n_packets, + (unsigned long long) n_bytes); + + return 0; +} + +DEBUGFS_FILE(opcode_stats) + +static void *_ctx_stats_seq_start(struct seq_file *s, loff_t *pos) +{ + struct qib_ibdev *ibd = (struct qib_ibdev *)s->private; + struct qib_devdata *dd = dd_from_dev(ibd); + + if (!*pos) + return SEQ_START_TOKEN; + if (*pos >= dd->first_user_ctxt) + return NULL; + return pos; +} + +static void *_ctx_stats_seq_next(struct seq_file *s, void *v, loff_t *pos) +{ + struct qib_ibdev *ibd = (struct qib_ibdev *)s->private; + struct qib_devdata *dd = dd_from_dev(ibd); + + if (v == SEQ_START_TOKEN) + return pos; + + ++*pos; + if (*pos >= dd->first_user_ctxt) + return NULL; + return pos; +} + +static void _ctx_stats_seq_stop(struct seq_file *s, void *v) +{ + /* nothing allocated */ +} + +static int _ctx_stats_seq_show(struct seq_file *s, void *v) +{ + loff_t *spos; + loff_t i, j; + u64 n_packets = 0; + struct qib_ibdev *ibd = (struct qib_ibdev *)s->private; + struct qib_devdata *dd = dd_from_dev(ibd); + + if (v == SEQ_START_TOKEN) { + seq_puts(s, "Ctx:npkts\n"); + return 0; + } + + spos = v; + i = *spos; + + if (!dd->rcd[i]) + return SEQ_SKIP; + + for (j = 0; j < ARRAY_SIZE(dd->rcd[i]->opstats->stats); j++) + n_packets += dd->rcd[i]->opstats->stats[j].n_packets; + + if (!n_packets) + return SEQ_SKIP; + + seq_printf(s, " %llu:%llu\n", i, n_packets); + return 0; +} + +DEBUGFS_FILE(ctx_stats) + +static void *_qp_stats_seq_start(struct seq_file *s, loff_t *pos) + __acquires(RCU) +{ + struct rvt_qp_iter *iter; + loff_t n = *pos; + + iter = rvt_qp_iter_init(s->private, 0, NULL); + + /* stop calls rcu_read_unlock */ + rcu_read_lock(); + + if (!iter) + return NULL; + + do { + if (rvt_qp_iter_next(iter)) { + kfree(iter); + return NULL; + } + } while (n--); + + return iter; +} + +static void *_qp_stats_seq_next(struct seq_file *s, void *iter_ptr, + loff_t *pos) + __must_hold(RCU) +{ + struct rvt_qp_iter *iter = iter_ptr; + + (*pos)++; + + if (rvt_qp_iter_next(iter)) { + kfree(iter); + return NULL; + } + + return iter; +} + +static void _qp_stats_seq_stop(struct seq_file *s, void *iter_ptr) + __releases(RCU) +{ + rcu_read_unlock(); +} + +static int _qp_stats_seq_show(struct seq_file *s, void *iter_ptr) +{ + struct rvt_qp_iter *iter = iter_ptr; + + if (!iter) + return 0; + + qib_qp_iter_print(s, iter); + + return 0; +} + +DEBUGFS_FILE(qp_stats) + +void qib_dbg_ibdev_init(struct qib_ibdev *ibd) +{ + struct dentry *root; + char name[10]; + + snprintf(name, sizeof(name), "qib%d", dd_from_dev(ibd)->unit); + root = debugfs_create_dir(name, qib_dbg_root); + ibd->qib_ibdev_dbg = root; + + debugfs_create_file("opcode_stats", 0400, root, ibd, + &_opcode_stats_file_ops); + debugfs_create_file("ctx_stats", 0400, root, ibd, &_ctx_stats_file_ops); + debugfs_create_file("qp_stats", 0400, root, ibd, &_qp_stats_file_ops); +} + +void qib_dbg_ibdev_exit(struct qib_ibdev *ibd) +{ + if (!qib_dbg_root) + goto out; + debugfs_remove_recursive(ibd->qib_ibdev_dbg); +out: + ibd->qib_ibdev_dbg = NULL; +} + +void qib_dbg_init(void) +{ + qib_dbg_root = debugfs_create_dir(QIB_DRV_NAME, NULL); +} + +void qib_dbg_exit(void) +{ + debugfs_remove_recursive(qib_dbg_root); + qib_dbg_root = NULL; +} diff --git a/drivers/infiniband/hw/qib/qib_debugfs.h b/drivers/infiniband/hw/qib/qib_debugfs.h new file mode 100644 index 000000000..7ae983a91 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_debugfs.h @@ -0,0 +1,45 @@ +#ifndef _QIB_DEBUGFS_H +#define _QIB_DEBUGFS_H + +#ifdef CONFIG_DEBUG_FS +/* + * Copyright (c) 2013 Intel Corporation. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +struct qib_ibdev; +void qib_dbg_ibdev_init(struct qib_ibdev *ibd); +void qib_dbg_ibdev_exit(struct qib_ibdev *ibd); +void qib_dbg_init(void); +void qib_dbg_exit(void); + +#endif + +#endif /* _QIB_DEBUGFS_H */ diff --git a/drivers/infiniband/hw/qib/qib_diag.c b/drivers/infiniband/hw/qib/qib_diag.c new file mode 100644 index 000000000..11da796dd --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_diag.c @@ -0,0 +1,906 @@ +/* + * Copyright (c) 2012 Intel Corporation. All rights reserved. + * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +/* + * This file contains support for diagnostic functions. It is accessed by + * opening the qib_diag device, normally minor number 129. Diagnostic use + * of the QLogic_IB chip may render the chip or board unusable until the + * driver is unloaded, or in some cases, until the system is rebooted. + * + * Accesses to the chip through this interface are not similar to going + * through the /sys/bus/pci resource mmap interface. + */ + +#include <linux/io.h> +#include <linux/pci.h> +#include <linux/poll.h> +#include <linux/vmalloc.h> +#include <linux/export.h> +#include <linux/fs.h> +#include <linux/uaccess.h> + +#include "qib.h" +#include "qib_common.h" + +#undef pr_fmt +#define pr_fmt(fmt) QIB_DRV_NAME ": " fmt + +/* + * Each client that opens the diag device must read then write + * offset 0, to prevent lossage from random cat or od. diag_state + * sequences this "handshake". + */ +enum diag_state { UNUSED = 0, OPENED, INIT, READY }; + +/* State for an individual client. PID so children cannot abuse handshake */ +static struct qib_diag_client { + struct qib_diag_client *next; + struct qib_devdata *dd; + pid_t pid; + enum diag_state state; +} *client_pool; + +/* + * Get a client struct. Recycled if possible, else kmalloc. + * Must be called with qib_mutex held + */ +static struct qib_diag_client *get_client(struct qib_devdata *dd) +{ + struct qib_diag_client *dc; + + dc = client_pool; + if (dc) + /* got from pool remove it and use */ + client_pool = dc->next; + else + /* None in pool, alloc and init */ + dc = kmalloc(sizeof(*dc), GFP_KERNEL); + + if (dc) { + dc->next = NULL; + dc->dd = dd; + dc->pid = current->pid; + dc->state = OPENED; + } + return dc; +} + +/* + * Return to pool. Must be called with qib_mutex held + */ +static void return_client(struct qib_diag_client *dc) +{ + struct qib_devdata *dd = dc->dd; + struct qib_diag_client *tdc, *rdc; + + rdc = NULL; + if (dc == dd->diag_client) { + dd->diag_client = dc->next; + rdc = dc; + } else { + tdc = dc->dd->diag_client; + while (tdc) { + if (dc == tdc->next) { + tdc->next = dc->next; + rdc = dc; + break; + } + tdc = tdc->next; + } + } + if (rdc) { + rdc->state = UNUSED; + rdc->dd = NULL; + rdc->pid = 0; + rdc->next = client_pool; + client_pool = rdc; + } +} + +static int qib_diag_open(struct inode *in, struct file *fp); +static int qib_diag_release(struct inode *in, struct file *fp); +static ssize_t qib_diag_read(struct file *fp, char __user *data, + size_t count, loff_t *off); +static ssize_t qib_diag_write(struct file *fp, const char __user *data, + size_t count, loff_t *off); + +static const struct file_operations diag_file_ops = { + .owner = THIS_MODULE, + .write = qib_diag_write, + .read = qib_diag_read, + .open = qib_diag_open, + .release = qib_diag_release, + .llseek = default_llseek, +}; + +static atomic_t diagpkt_count = ATOMIC_INIT(0); +static struct cdev *diagpkt_cdev; +static struct device *diagpkt_device; + +static ssize_t qib_diagpkt_write(struct file *fp, const char __user *data, + size_t count, loff_t *off); + +static const struct file_operations diagpkt_file_ops = { + .owner = THIS_MODULE, + .write = qib_diagpkt_write, + .llseek = noop_llseek, +}; + +int qib_diag_add(struct qib_devdata *dd) +{ + char name[16]; + int ret = 0; + + if (atomic_inc_return(&diagpkt_count) == 1) { + ret = qib_cdev_init(QIB_DIAGPKT_MINOR, "ipath_diagpkt", + &diagpkt_file_ops, &diagpkt_cdev, + &diagpkt_device); + if (ret) + goto done; + } + + snprintf(name, sizeof(name), "ipath_diag%d", dd->unit); + ret = qib_cdev_init(QIB_DIAG_MINOR_BASE + dd->unit, name, + &diag_file_ops, &dd->diag_cdev, + &dd->diag_device); +done: + return ret; +} + +static void qib_unregister_observers(struct qib_devdata *dd); + +void qib_diag_remove(struct qib_devdata *dd) +{ + struct qib_diag_client *dc; + + if (atomic_dec_and_test(&diagpkt_count)) + qib_cdev_cleanup(&diagpkt_cdev, &diagpkt_device); + + qib_cdev_cleanup(&dd->diag_cdev, &dd->diag_device); + + /* + * Return all diag_clients of this device. There should be none, + * as we are "guaranteed" that no clients are still open + */ + while (dd->diag_client) + return_client(dd->diag_client); + + /* Now clean up all unused client structs */ + while (client_pool) { + dc = client_pool; + client_pool = dc->next; + kfree(dc); + } + /* Clean up observer list */ + qib_unregister_observers(dd); +} + +/* qib_remap_ioaddr32 - remap an offset into chip address space to __iomem * + * + * @dd: the qlogic_ib device + * @offs: the offset in chip-space + * @cntp: Pointer to max (byte) count for transfer starting at offset + * This returns a u32 __iomem * so it can be used for both 64 and 32-bit + * mapping. It is needed because with the use of PAT for control of + * write-combining, the logically contiguous address-space of the chip + * may be split into virtually non-contiguous spaces, with different + * attributes, which are them mapped to contiguous physical space + * based from the first BAR. + * + * The code below makes the same assumptions as were made in + * init_chip_wc_pat() (qib_init.c), copied here: + * Assumes chip address space looks like: + * - kregs + sregs + cregs + uregs (in any order) + * - piobufs (2K and 4K bufs in either order) + * or: + * - kregs + sregs + cregs (in any order) + * - piobufs (2K and 4K bufs in either order) + * - uregs + * + * If cntp is non-NULL, returns how many bytes from offset can be accessed + * Returns 0 if the offset is not mapped. + */ +static u32 __iomem *qib_remap_ioaddr32(struct qib_devdata *dd, u32 offset, + u32 *cntp) +{ + u32 kreglen; + u32 snd_bottom, snd_lim = 0; + u32 __iomem *krb32 = (u32 __iomem *)dd->kregbase; + u32 __iomem *map = NULL; + u32 cnt = 0; + u32 tot4k, offs4k; + + /* First, simplest case, offset is within the first map. */ + kreglen = (dd->kregend - dd->kregbase) * sizeof(u64); + if (offset < kreglen) { + map = krb32 + (offset / sizeof(u32)); + cnt = kreglen - offset; + goto mapped; + } + + /* + * Next check for user regs, the next most common case, + * and a cheap check because if they are not in the first map + * they are last in chip. + */ + if (dd->userbase) { + /* If user regs mapped, they are after send, so set limit. */ + u32 ulim = (dd->cfgctxts * dd->ureg_align) + dd->uregbase; + + if (!dd->piovl15base) + snd_lim = dd->uregbase; + krb32 = (u32 __iomem *)dd->userbase; + if (offset >= dd->uregbase && offset < ulim) { + map = krb32 + (offset - dd->uregbase) / sizeof(u32); + cnt = ulim - offset; + goto mapped; + } + } + + /* + * Lastly, check for offset within Send Buffers. + * This is gnarly because struct devdata is deliberately vague + * about things like 7322 VL15 buffers, and we are not in + * chip-specific code here, so should not make many assumptions. + * The one we _do_ make is that the only chip that has more sndbufs + * than we admit is the 7322, and it has userregs above that, so + * we know the snd_lim. + */ + /* Assume 2K buffers are first. */ + snd_bottom = dd->pio2k_bufbase; + if (snd_lim == 0) { + u32 tot2k = dd->piobcnt2k * ALIGN(dd->piosize2k, dd->palign); + + snd_lim = snd_bottom + tot2k; + } + /* If 4k buffers exist, account for them by bumping + * appropriate limit. + */ + tot4k = dd->piobcnt4k * dd->align4k; + offs4k = dd->piobufbase >> 32; + if (dd->piobcnt4k) { + if (snd_bottom > offs4k) + snd_bottom = offs4k; + else { + /* 4k above 2k. Bump snd_lim, if needed*/ + if (!dd->userbase || dd->piovl15base) + snd_lim = offs4k + tot4k; + } + } + /* + * Judgement call: can we ignore the space between SendBuffs and + * UserRegs, where we would like to see vl15 buffs, but not more? + */ + if (offset >= snd_bottom && offset < snd_lim) { + offset -= snd_bottom; + map = (u32 __iomem *)dd->piobase + (offset / sizeof(u32)); + cnt = snd_lim - offset; + } + + if (!map && offs4k && dd->piovl15base) { + snd_lim = offs4k + tot4k + 2 * dd->align4k; + if (offset >= (offs4k + tot4k) && offset < snd_lim) { + map = (u32 __iomem *)dd->piovl15base + + ((offset - (offs4k + tot4k)) / sizeof(u32)); + cnt = snd_lim - offset; + } + } + +mapped: + if (cntp) + *cntp = cnt; + return map; +} + +/* + * qib_read_umem64 - read a 64-bit quantity from the chip into user space + * @dd: the qlogic_ib device + * @uaddr: the location to store the data in user memory + * @regoffs: the offset from BAR0 (_NOT_ full pointer, anymore) + * @count: number of bytes to copy (multiple of 32 bits) + * + * This function also localizes all chip memory accesses. + * The copy should be written such that we read full cacheline packets + * from the chip. This is usually used for a single qword + * + * NOTE: This assumes the chip address is 64-bit aligned. + */ +static int qib_read_umem64(struct qib_devdata *dd, void __user *uaddr, + u32 regoffs, size_t count) +{ + const u64 __iomem *reg_addr; + const u64 __iomem *reg_end; + u32 limit; + int ret; + + reg_addr = (const u64 __iomem *)qib_remap_ioaddr32(dd, regoffs, &limit); + if (reg_addr == NULL || limit == 0 || !(dd->flags & QIB_PRESENT)) { + ret = -EINVAL; + goto bail; + } + if (count >= limit) + count = limit; + reg_end = reg_addr + (count / sizeof(u64)); + + /* not very efficient, but it works for now */ + while (reg_addr < reg_end) { + u64 data = readq(reg_addr); + + if (copy_to_user(uaddr, &data, sizeof(u64))) { + ret = -EFAULT; + goto bail; + } + reg_addr++; + uaddr += sizeof(u64); + } + ret = 0; +bail: + return ret; +} + +/* + * qib_write_umem64 - write a 64-bit quantity to the chip from user space + * @dd: the qlogic_ib device + * @regoffs: the offset from BAR0 (_NOT_ full pointer, anymore) + * @uaddr: the source of the data in user memory + * @count: the number of bytes to copy (multiple of 32 bits) + * + * This is usually used for a single qword + * NOTE: This assumes the chip address is 64-bit aligned. + */ + +static int qib_write_umem64(struct qib_devdata *dd, u32 regoffs, + const void __user *uaddr, size_t count) +{ + u64 __iomem *reg_addr; + const u64 __iomem *reg_end; + u32 limit; + int ret; + + reg_addr = (u64 __iomem *)qib_remap_ioaddr32(dd, regoffs, &limit); + if (reg_addr == NULL || limit == 0 || !(dd->flags & QIB_PRESENT)) { + ret = -EINVAL; + goto bail; + } + if (count >= limit) + count = limit; + reg_end = reg_addr + (count / sizeof(u64)); + + /* not very efficient, but it works for now */ + while (reg_addr < reg_end) { + u64 data; + + if (copy_from_user(&data, uaddr, sizeof(data))) { + ret = -EFAULT; + goto bail; + } + writeq(data, reg_addr); + + reg_addr++; + uaddr += sizeof(u64); + } + ret = 0; +bail: + return ret; +} + +/* + * qib_read_umem32 - read a 32-bit quantity from the chip into user space + * @dd: the qlogic_ib device + * @uaddr: the location to store the data in user memory + * @regoffs: the offset from BAR0 (_NOT_ full pointer, anymore) + * @count: number of bytes to copy + * + * read 32 bit values, not 64 bit; for memories that only + * support 32 bit reads; usually a single dword. + */ +static int qib_read_umem32(struct qib_devdata *dd, void __user *uaddr, + u32 regoffs, size_t count) +{ + const u32 __iomem *reg_addr; + const u32 __iomem *reg_end; + u32 limit; + int ret; + + reg_addr = qib_remap_ioaddr32(dd, regoffs, &limit); + if (reg_addr == NULL || limit == 0 || !(dd->flags & QIB_PRESENT)) { + ret = -EINVAL; + goto bail; + } + if (count >= limit) + count = limit; + reg_end = reg_addr + (count / sizeof(u32)); + + /* not very efficient, but it works for now */ + while (reg_addr < reg_end) { + u32 data = readl(reg_addr); + + if (copy_to_user(uaddr, &data, sizeof(data))) { + ret = -EFAULT; + goto bail; + } + + reg_addr++; + uaddr += sizeof(u32); + + } + ret = 0; +bail: + return ret; +} + +/* + * qib_write_umem32 - write a 32-bit quantity to the chip from user space + * @dd: the qlogic_ib device + * @regoffs: the offset from BAR0 (_NOT_ full pointer, anymore) + * @uaddr: the source of the data in user memory + * @count: number of bytes to copy + * + * write 32 bit values, not 64 bit; for memories that only + * support 32 bit write; usually a single dword. + */ + +static int qib_write_umem32(struct qib_devdata *dd, u32 regoffs, + const void __user *uaddr, size_t count) +{ + u32 __iomem *reg_addr; + const u32 __iomem *reg_end; + u32 limit; + int ret; + + reg_addr = qib_remap_ioaddr32(dd, regoffs, &limit); + if (reg_addr == NULL || limit == 0 || !(dd->flags & QIB_PRESENT)) { + ret = -EINVAL; + goto bail; + } + if (count >= limit) + count = limit; + reg_end = reg_addr + (count / sizeof(u32)); + + while (reg_addr < reg_end) { + u32 data; + + if (copy_from_user(&data, uaddr, sizeof(data))) { + ret = -EFAULT; + goto bail; + } + writel(data, reg_addr); + + reg_addr++; + uaddr += sizeof(u32); + } + ret = 0; +bail: + return ret; +} + +static int qib_diag_open(struct inode *in, struct file *fp) +{ + int unit = iminor(in) - QIB_DIAG_MINOR_BASE; + struct qib_devdata *dd; + struct qib_diag_client *dc; + int ret; + + mutex_lock(&qib_mutex); + + dd = qib_lookup(unit); + + if (dd == NULL || !(dd->flags & QIB_PRESENT) || + !dd->kregbase) { + ret = -ENODEV; + goto bail; + } + + dc = get_client(dd); + if (!dc) { + ret = -ENOMEM; + goto bail; + } + dc->next = dd->diag_client; + dd->diag_client = dc; + fp->private_data = dc; + ret = 0; +bail: + mutex_unlock(&qib_mutex); + + return ret; +} + +/** + * qib_diagpkt_write - write an IB packet + * @fp: the diag data device file pointer + * @data: qib_diag_pkt structure saying where to get the packet + * @count: size of data to write + * @off: unused by this code + */ +static ssize_t qib_diagpkt_write(struct file *fp, + const char __user *data, + size_t count, loff_t *off) +{ + u32 __iomem *piobuf; + u32 plen, pbufn, maxlen_reserve; + struct qib_diag_xpkt dp; + u32 *tmpbuf = NULL; + struct qib_devdata *dd; + struct qib_pportdata *ppd; + ssize_t ret = 0; + + if (count != sizeof(dp)) { + ret = -EINVAL; + goto bail; + } + if (copy_from_user(&dp, data, sizeof(dp))) { + ret = -EFAULT; + goto bail; + } + + dd = qib_lookup(dp.unit); + if (!dd || !(dd->flags & QIB_PRESENT) || !dd->kregbase) { + ret = -ENODEV; + goto bail; + } + if (!(dd->flags & QIB_INITTED)) { + /* no hardware, freeze, etc. */ + ret = -ENODEV; + goto bail; + } + + if (dp.version != _DIAG_XPKT_VERS) { + qib_dev_err(dd, "Invalid version %u for diagpkt_write\n", + dp.version); + ret = -EINVAL; + goto bail; + } + /* send count must be an exact number of dwords */ + if (dp.len & 3) { + ret = -EINVAL; + goto bail; + } + if (!dp.port || dp.port > dd->num_pports) { + ret = -EINVAL; + goto bail; + } + ppd = &dd->pport[dp.port - 1]; + + /* + * need total length before first word written, plus 2 Dwords. One Dword + * is for padding so we get the full user data when not aligned on + * a word boundary. The other Dword is to make sure we have room for the + * ICRC which gets tacked on later. + */ + maxlen_reserve = 2 * sizeof(u32); + if (dp.len > ppd->ibmaxlen - maxlen_reserve) { + ret = -EINVAL; + goto bail; + } + + plen = sizeof(u32) + dp.len; + + tmpbuf = vmalloc(plen); + if (!tmpbuf) { + ret = -ENOMEM; + goto bail; + } + + if (copy_from_user(tmpbuf, + u64_to_user_ptr(dp.data), + dp.len)) { + ret = -EFAULT; + goto bail; + } + + plen >>= 2; /* in dwords */ + + if (dp.pbc_wd == 0) + dp.pbc_wd = plen; + + piobuf = dd->f_getsendbuf(ppd, dp.pbc_wd, &pbufn); + if (!piobuf) { + ret = -EBUSY; + goto bail; + } + /* disarm it just to be extra sure */ + dd->f_sendctrl(dd->pport, QIB_SENDCTRL_DISARM_BUF(pbufn)); + + /* disable header check on pbufn for this packet */ + dd->f_txchk_change(dd, pbufn, 1, TXCHK_CHG_TYPE_DIS1, NULL); + + writeq(dp.pbc_wd, piobuf); + /* + * Copy all but the trigger word, then flush, so it's written + * to chip before trigger word, then write trigger word, then + * flush again, so packet is sent. + */ + if (dd->flags & QIB_PIO_FLUSH_WC) { + qib_flush_wc(); + qib_pio_copy(piobuf + 2, tmpbuf, plen - 1); + qib_flush_wc(); + __raw_writel(tmpbuf[plen - 1], piobuf + plen + 1); + } else + qib_pio_copy(piobuf + 2, tmpbuf, plen); + + if (dd->flags & QIB_USE_SPCL_TRIG) { + u32 spcl_off = (pbufn >= dd->piobcnt2k) ? 2047 : 1023; + + qib_flush_wc(); + __raw_writel(0xaebecede, piobuf + spcl_off); + } + + /* + * Ensure buffer is written to the chip, then re-enable + * header checks (if supported by chip). The txchk + * code will ensure seen by chip before returning. + */ + qib_flush_wc(); + qib_sendbuf_done(dd, pbufn); + dd->f_txchk_change(dd, pbufn, 1, TXCHK_CHG_TYPE_ENAB1, NULL); + + ret = sizeof(dp); + +bail: + vfree(tmpbuf); + return ret; +} + +static int qib_diag_release(struct inode *in, struct file *fp) +{ + mutex_lock(&qib_mutex); + return_client(fp->private_data); + fp->private_data = NULL; + mutex_unlock(&qib_mutex); + return 0; +} + +/* + * Chip-specific code calls to register its interest in + * a specific range. + */ +struct diag_observer_list_elt { + struct diag_observer_list_elt *next; + const struct diag_observer *op; +}; + +int qib_register_observer(struct qib_devdata *dd, + const struct diag_observer *op) +{ + struct diag_observer_list_elt *olp; + unsigned long flags; + + if (!dd || !op) + return -EINVAL; + olp = vmalloc(sizeof(*olp)); + if (!olp) + return -ENOMEM; + + spin_lock_irqsave(&dd->qib_diag_trans_lock, flags); + olp->op = op; + olp->next = dd->diag_observer_list; + dd->diag_observer_list = olp; + spin_unlock_irqrestore(&dd->qib_diag_trans_lock, flags); + + return 0; +} + +/* Remove all registered observers when device is closed */ +static void qib_unregister_observers(struct qib_devdata *dd) +{ + struct diag_observer_list_elt *olp; + unsigned long flags; + + spin_lock_irqsave(&dd->qib_diag_trans_lock, flags); + olp = dd->diag_observer_list; + while (olp) { + /* Pop one observer, let go of lock */ + dd->diag_observer_list = olp->next; + spin_unlock_irqrestore(&dd->qib_diag_trans_lock, flags); + vfree(olp); + /* try again. */ + spin_lock_irqsave(&dd->qib_diag_trans_lock, flags); + olp = dd->diag_observer_list; + } + spin_unlock_irqrestore(&dd->qib_diag_trans_lock, flags); +} + +/* + * Find the observer, if any, for the specified address. Initial implementation + * is simple stack of observers. This must be called with diag transaction + * lock held. + */ +static const struct diag_observer *diag_get_observer(struct qib_devdata *dd, + u32 addr) +{ + struct diag_observer_list_elt *olp; + const struct diag_observer *op = NULL; + + olp = dd->diag_observer_list; + while (olp) { + op = olp->op; + if (addr >= op->bottom && addr <= op->top) + break; + olp = olp->next; + } + if (!olp) + op = NULL; + + return op; +} + +static ssize_t qib_diag_read(struct file *fp, char __user *data, + size_t count, loff_t *off) +{ + struct qib_diag_client *dc = fp->private_data; + struct qib_devdata *dd = dc->dd; + ssize_t ret; + + if (dc->pid != current->pid) { + ret = -EPERM; + goto bail; + } + + if (count == 0) + ret = 0; + else if ((count % 4) || (*off % 4)) + /* address or length is not 32-bit aligned, hence invalid */ + ret = -EINVAL; + else if (dc->state < READY && (*off || count != 8)) + ret = -EINVAL; /* prevent cat /dev/qib_diag* */ + else { + unsigned long flags; + u64 data64 = 0; + int use_32; + const struct diag_observer *op; + + use_32 = (count % 8) || (*off % 8); + ret = -1; + spin_lock_irqsave(&dd->qib_diag_trans_lock, flags); + /* + * Check for observer on this address range. + * we only support a single 32 or 64-bit read + * via observer, currently. + */ + op = diag_get_observer(dd, *off); + if (op) { + u32 offset = *off; + + ret = op->hook(dd, op, offset, &data64, 0, use_32); + } + /* + * We need to release lock before any copy_to_user(), + * whether implicit in qib_read_umem* or explicit below. + */ + spin_unlock_irqrestore(&dd->qib_diag_trans_lock, flags); + if (!op) { + if (use_32) + /* + * Address or length is not 64-bit aligned; + * do 32-bit rd + */ + ret = qib_read_umem32(dd, data, (u32) *off, + count); + else + ret = qib_read_umem64(dd, data, (u32) *off, + count); + } else if (ret == count) { + /* Below finishes case where observer existed */ + ret = copy_to_user(data, &data64, use_32 ? + sizeof(u32) : sizeof(u64)); + if (ret) + ret = -EFAULT; + } + } + + if (ret >= 0) { + *off += count; + ret = count; + if (dc->state == OPENED) + dc->state = INIT; + } +bail: + return ret; +} + +static ssize_t qib_diag_write(struct file *fp, const char __user *data, + size_t count, loff_t *off) +{ + struct qib_diag_client *dc = fp->private_data; + struct qib_devdata *dd = dc->dd; + ssize_t ret; + + if (dc->pid != current->pid) { + ret = -EPERM; + goto bail; + } + + if (count == 0) + ret = 0; + else if ((count % 4) || (*off % 4)) + /* address or length is not 32-bit aligned, hence invalid */ + ret = -EINVAL; + else if (dc->state < READY && + ((*off || count != 8) || dc->state != INIT)) + /* No writes except second-step of init seq */ + ret = -EINVAL; /* before any other write allowed */ + else { + unsigned long flags; + const struct diag_observer *op = NULL; + int use_32 = (count % 8) || (*off % 8); + + /* + * Check for observer on this address range. + * We only support a single 32 or 64-bit write + * via observer, currently. This helps, because + * we would otherwise have to jump through hoops + * to make "diag transaction" meaningful when we + * cannot do a copy_from_user while holding the lock. + */ + if (count == 4 || count == 8) { + u64 data64; + u32 offset = *off; + + ret = copy_from_user(&data64, data, count); + if (ret) { + ret = -EFAULT; + goto bail; + } + spin_lock_irqsave(&dd->qib_diag_trans_lock, flags); + op = diag_get_observer(dd, *off); + if (op) + ret = op->hook(dd, op, offset, &data64, ~0Ull, + use_32); + spin_unlock_irqrestore(&dd->qib_diag_trans_lock, flags); + } + + if (!op) { + if (use_32) + /* + * Address or length is not 64-bit aligned; + * do 32-bit write + */ + ret = qib_write_umem32(dd, (u32) *off, data, + count); + else + ret = qib_write_umem64(dd, (u32) *off, data, + count); + } + } + + if (ret >= 0) { + *off += count; + ret = count; + if (dc->state == INIT) + dc->state = READY; /* all read/write OK now */ + } +bail: + return ret; +} diff --git a/drivers/infiniband/hw/qib/qib_driver.c b/drivers/infiniband/hw/qib/qib_driver.c new file mode 100644 index 000000000..bf3fa12fe --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_driver.c @@ -0,0 +1,804 @@ +/* + * Copyright (c) 2021 Cornelis Networks. All rights reserved. + * Copyright (c) 2013 Intel Corporation. All rights reserved. + * Copyright (c) 2006, 2007, 2008, 2009 QLogic Corporation. All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/spinlock.h> +#include <linux/pci.h> +#include <linux/io.h> +#include <linux/delay.h> +#include <linux/netdevice.h> +#include <linux/vmalloc.h> +#include <linux/module.h> +#include <linux/prefetch.h> + +#include "qib.h" + +/* + * The size has to be longer than this string, so we can append + * board/chip information to it in the init code. + */ +const char ib_qib_version[] = QIB_DRIVER_VERSION "\n"; + +DEFINE_MUTEX(qib_mutex); /* general driver use */ + +unsigned qib_ibmtu; +module_param_named(ibmtu, qib_ibmtu, uint, S_IRUGO); +MODULE_PARM_DESC(ibmtu, "Set max IB MTU (0=2KB, 1=256, 2=512, ... 5=4096"); + +unsigned qib_compat_ddr_negotiate = 1; +module_param_named(compat_ddr_negotiate, qib_compat_ddr_negotiate, uint, + S_IWUSR | S_IRUGO); +MODULE_PARM_DESC(compat_ddr_negotiate, + "Attempt pre-IBTA 1.2 DDR speed negotiation"); + +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_AUTHOR("Cornelis <support@cornelisnetworks.com>"); +MODULE_DESCRIPTION("Cornelis IB driver"); + +/* + * QIB_PIO_MAXIBHDR is the max IB header size allowed for in our + * PIO send buffers. This is well beyond anything currently + * defined in the InfiniBand spec. + */ +#define QIB_PIO_MAXIBHDR 128 + +/* + * QIB_MAX_PKT_RCV is the max # if packets processed per receive interrupt. + */ +#define QIB_MAX_PKT_RECV 64 + +struct qlogic_ib_stats qib_stats; + +struct pci_dev *qib_get_pci_dev(struct rvt_dev_info *rdi) +{ + struct qib_ibdev *ibdev = container_of(rdi, struct qib_ibdev, rdi); + struct qib_devdata *dd = container_of(ibdev, + struct qib_devdata, verbs_dev); + return dd->pcidev; +} + +/* + * Return count of units with at least one port ACTIVE. + */ +int qib_count_active_units(void) +{ + struct qib_devdata *dd; + struct qib_pportdata *ppd; + unsigned long index, flags; + int pidx, nunits_active = 0; + + xa_lock_irqsave(&qib_dev_table, flags); + xa_for_each(&qib_dev_table, index, dd) { + if (!(dd->flags & QIB_PRESENT) || !dd->kregbase) + continue; + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + ppd = dd->pport + pidx; + if (ppd->lid && (ppd->lflags & (QIBL_LINKINIT | + QIBL_LINKARMED | QIBL_LINKACTIVE))) { + nunits_active++; + break; + } + } + } + xa_unlock_irqrestore(&qib_dev_table, flags); + return nunits_active; +} + +/* + * Return count of all units, optionally return in arguments + * the number of usable (present) units, and the number of + * ports that are up. + */ +int qib_count_units(int *npresentp, int *nupp) +{ + int nunits = 0, npresent = 0, nup = 0; + struct qib_devdata *dd; + unsigned long index, flags; + int pidx; + struct qib_pportdata *ppd; + + xa_lock_irqsave(&qib_dev_table, flags); + xa_for_each(&qib_dev_table, index, dd) { + nunits++; + if ((dd->flags & QIB_PRESENT) && dd->kregbase) + npresent++; + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + ppd = dd->pport + pidx; + if (ppd->lid && (ppd->lflags & (QIBL_LINKINIT | + QIBL_LINKARMED | QIBL_LINKACTIVE))) + nup++; + } + } + xa_unlock_irqrestore(&qib_dev_table, flags); + + if (npresentp) + *npresentp = npresent; + if (nupp) + *nupp = nup; + + return nunits; +} + +/** + * qib_wait_linkstate - wait for an IB link state change to occur + * @ppd: the qlogic_ib device + * @state: the state to wait for + * @msecs: the number of milliseconds to wait + * + * wait up to msecs milliseconds for IB link state change to occur for + * now, take the easy polling route. Currently used only by + * qib_set_linkstate. Returns 0 if state reached, otherwise + * -ETIMEDOUT state can have multiple states set, for any of several + * transitions. + */ +int qib_wait_linkstate(struct qib_pportdata *ppd, u32 state, int msecs) +{ + int ret; + unsigned long flags; + + spin_lock_irqsave(&ppd->lflags_lock, flags); + if (ppd->state_wanted) { + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + ret = -EBUSY; + goto bail; + } + ppd->state_wanted = state; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + wait_event_interruptible_timeout(ppd->state_wait, + (ppd->lflags & state), + msecs_to_jiffies(msecs)); + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->state_wanted = 0; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + + if (!(ppd->lflags & state)) + ret = -ETIMEDOUT; + else + ret = 0; +bail: + return ret; +} + +int qib_set_linkstate(struct qib_pportdata *ppd, u8 newstate) +{ + u32 lstate; + int ret; + struct qib_devdata *dd = ppd->dd; + unsigned long flags; + + switch (newstate) { + case QIB_IB_LINKDOWN_ONLY: + dd->f_set_ib_cfg(ppd, QIB_IB_CFG_LSTATE, + IB_LINKCMD_DOWN | IB_LINKINITCMD_NOP); + /* don't wait */ + ret = 0; + goto bail; + + case QIB_IB_LINKDOWN: + dd->f_set_ib_cfg(ppd, QIB_IB_CFG_LSTATE, + IB_LINKCMD_DOWN | IB_LINKINITCMD_POLL); + /* don't wait */ + ret = 0; + goto bail; + + case QIB_IB_LINKDOWN_SLEEP: + dd->f_set_ib_cfg(ppd, QIB_IB_CFG_LSTATE, + IB_LINKCMD_DOWN | IB_LINKINITCMD_SLEEP); + /* don't wait */ + ret = 0; + goto bail; + + case QIB_IB_LINKDOWN_DISABLE: + dd->f_set_ib_cfg(ppd, QIB_IB_CFG_LSTATE, + IB_LINKCMD_DOWN | IB_LINKINITCMD_DISABLE); + /* don't wait */ + ret = 0; + goto bail; + + case QIB_IB_LINKARM: + if (ppd->lflags & QIBL_LINKARMED) { + ret = 0; + goto bail; + } + if (!(ppd->lflags & (QIBL_LINKINIT | QIBL_LINKACTIVE))) { + ret = -EINVAL; + goto bail; + } + /* + * Since the port can be ACTIVE when we ask for ARMED, + * clear QIBL_LINKV so we can wait for a transition. + * If the link isn't ARMED, then something else happened + * and there is no point waiting for ARMED. + */ + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~QIBL_LINKV; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + dd->f_set_ib_cfg(ppd, QIB_IB_CFG_LSTATE, + IB_LINKCMD_ARMED | IB_LINKINITCMD_NOP); + lstate = QIBL_LINKV; + break; + + case QIB_IB_LINKACTIVE: + if (ppd->lflags & QIBL_LINKACTIVE) { + ret = 0; + goto bail; + } + if (!(ppd->lflags & QIBL_LINKARMED)) { + ret = -EINVAL; + goto bail; + } + dd->f_set_ib_cfg(ppd, QIB_IB_CFG_LSTATE, + IB_LINKCMD_ACTIVE | IB_LINKINITCMD_NOP); + lstate = QIBL_LINKACTIVE; + break; + + default: + ret = -EINVAL; + goto bail; + } + ret = qib_wait_linkstate(ppd, lstate, 10); + +bail: + return ret; +} + +/* + * Get address of eager buffer from it's index (allocated in chunks, not + * contiguous). + */ +static inline void *qib_get_egrbuf(const struct qib_ctxtdata *rcd, u32 etail) +{ + const u32 chunk = etail >> rcd->rcvegrbufs_perchunk_shift; + const u32 idx = etail & ((u32)rcd->rcvegrbufs_perchunk - 1); + + return rcd->rcvegrbuf[chunk] + (idx << rcd->dd->rcvegrbufsize_shift); +} + +/* + * Returns 1 if error was a CRC, else 0. + * Needed for some chip's synthesized error counters. + */ +static u32 qib_rcv_hdrerr(struct qib_ctxtdata *rcd, struct qib_pportdata *ppd, + u32 ctxt, u32 eflags, u32 l, u32 etail, + __le32 *rhf_addr, struct qib_message_header *rhdr) +{ + u32 ret = 0; + + if (eflags & (QLOGIC_IB_RHF_H_ICRCERR | QLOGIC_IB_RHF_H_VCRCERR)) + ret = 1; + else if (eflags == QLOGIC_IB_RHF_H_TIDERR) { + /* For TIDERR and RC QPs premptively schedule a NAK */ + struct ib_header *hdr = (struct ib_header *)rhdr; + struct ib_other_headers *ohdr = NULL; + struct qib_ibport *ibp = &ppd->ibport_data; + struct qib_devdata *dd = ppd->dd; + struct rvt_dev_info *rdi = &dd->verbs_dev.rdi; + struct rvt_qp *qp = NULL; + u32 tlen = qib_hdrget_length_in_bytes(rhf_addr); + u16 lid = be16_to_cpu(hdr->lrh[1]); + int lnh = be16_to_cpu(hdr->lrh[0]) & 3; + u32 qp_num; + u32 opcode; + u32 psn; + int diff; + + /* Sanity check packet */ + if (tlen < 24) + goto drop; + + if (lid < be16_to_cpu(IB_MULTICAST_LID_BASE)) { + lid &= ~((1 << ppd->lmc) - 1); + if (unlikely(lid != ppd->lid)) + goto drop; + } + + /* Check for GRH */ + if (lnh == QIB_LRH_BTH) + ohdr = &hdr->u.oth; + else if (lnh == QIB_LRH_GRH) { + u32 vtf; + + ohdr = &hdr->u.l.oth; + if (hdr->u.l.grh.next_hdr != IB_GRH_NEXT_HDR) + goto drop; + vtf = be32_to_cpu(hdr->u.l.grh.version_tclass_flow); + if ((vtf >> IB_GRH_VERSION_SHIFT) != IB_GRH_VERSION) + goto drop; + } else + goto drop; + + /* Get opcode and PSN from packet */ + opcode = be32_to_cpu(ohdr->bth[0]); + opcode >>= 24; + psn = be32_to_cpu(ohdr->bth[2]); + + /* Get the destination QP number. */ + qp_num = be32_to_cpu(ohdr->bth[1]) & RVT_QPN_MASK; + if (qp_num != QIB_MULTICAST_QPN) { + int ruc_res; + + rcu_read_lock(); + qp = rvt_lookup_qpn(rdi, &ibp->rvp, qp_num); + if (!qp) { + rcu_read_unlock(); + goto drop; + } + + /* + * Handle only RC QPs - for other QP types drop error + * packet. + */ + spin_lock(&qp->r_lock); + + /* Check for valid receive state. */ + if (!(ib_rvt_state_ops[qp->state] & + RVT_PROCESS_RECV_OK)) { + ibp->rvp.n_pkt_drops++; + goto unlock; + } + + switch (qp->ibqp.qp_type) { + case IB_QPT_RC: + ruc_res = + qib_ruc_check_hdr( + ibp, hdr, + lnh == QIB_LRH_GRH, + qp, + be32_to_cpu(ohdr->bth[0])); + if (ruc_res) + goto unlock; + + /* Only deal with RDMA Writes for now */ + if (opcode < + IB_OPCODE_RC_RDMA_READ_RESPONSE_FIRST) { + diff = qib_cmp24(psn, qp->r_psn); + if (!qp->r_nak_state && diff >= 0) { + ibp->rvp.n_rc_seqnak++; + qp->r_nak_state = + IB_NAK_PSN_ERROR; + /* Use the expected PSN. */ + qp->r_ack_psn = qp->r_psn; + /* + * Wait to send the sequence + * NAK until all packets + * in the receive queue have + * been processed. + * Otherwise, we end up + * propagating congestion. + */ + if (list_empty(&qp->rspwait)) { + qp->r_flags |= + RVT_R_RSP_NAK; + rvt_get_qp(qp); + list_add_tail( + &qp->rspwait, + &rcd->qp_wait_list); + } + } /* Out of sequence NAK */ + } /* QP Request NAKs */ + break; + case IB_QPT_SMI: + case IB_QPT_GSI: + case IB_QPT_UD: + case IB_QPT_UC: + default: + /* For now don't handle any other QP types */ + break; + } + +unlock: + spin_unlock(&qp->r_lock); + rcu_read_unlock(); + } /* Unicast QP */ + } /* Valid packet with TIDErr */ + +drop: + return ret; +} + +/* + * qib_kreceive - receive a packet + * @rcd: the qlogic_ib context + * @llic: gets count of good packets needed to clear lli, + * (used with chips that need need to track crcs for lli) + * + * called from interrupt handler for errors or receive interrupt + * Returns number of CRC error packets, needed by some chips for + * local link integrity tracking. crcs are adjusted down by following + * good packets, if any, and count of good packets is also tracked. + */ +u32 qib_kreceive(struct qib_ctxtdata *rcd, u32 *llic, u32 *npkts) +{ + struct qib_devdata *dd = rcd->dd; + struct qib_pportdata *ppd = rcd->ppd; + __le32 *rhf_addr; + void *ebuf; + const u32 rsize = dd->rcvhdrentsize; /* words */ + const u32 maxcnt = dd->rcvhdrcnt * rsize; /* words */ + u32 etail = -1, l, hdrqtail; + struct qib_message_header *hdr; + u32 eflags, etype, tlen, i = 0, updegr = 0, crcs = 0; + int last; + u64 lval; + struct rvt_qp *qp, *nqp; + + l = rcd->head; + rhf_addr = (__le32 *) rcd->rcvhdrq + l + dd->rhf_offset; + if (dd->flags & QIB_NODMA_RTAIL) { + u32 seq = qib_hdrget_seq(rhf_addr); + + if (seq != rcd->seq_cnt) + goto bail; + hdrqtail = 0; + } else { + hdrqtail = qib_get_rcvhdrtail(rcd); + if (l == hdrqtail) + goto bail; + smp_rmb(); /* prevent speculative reads of dma'ed hdrq */ + } + + for (last = 0, i = 1; !last; i += !last) { + hdr = dd->f_get_msgheader(dd, rhf_addr); + eflags = qib_hdrget_err_flags(rhf_addr); + etype = qib_hdrget_rcv_type(rhf_addr); + /* total length */ + tlen = qib_hdrget_length_in_bytes(rhf_addr); + ebuf = NULL; + if ((dd->flags & QIB_NODMA_RTAIL) ? + qib_hdrget_use_egr_buf(rhf_addr) : + (etype != RCVHQ_RCV_TYPE_EXPECTED)) { + etail = qib_hdrget_index(rhf_addr); + updegr = 1; + if (tlen > sizeof(*hdr) || + etype >= RCVHQ_RCV_TYPE_NON_KD) { + ebuf = qib_get_egrbuf(rcd, etail); + prefetch_range(ebuf, tlen - sizeof(*hdr)); + } + } + if (!eflags) { + u16 lrh_len = be16_to_cpu(hdr->lrh[2]) << 2; + + if (lrh_len != tlen) { + qib_stats.sps_lenerrs++; + goto move_along; + } + } + if (etype == RCVHQ_RCV_TYPE_NON_KD && !eflags && + ebuf == NULL && + tlen > (dd->rcvhdrentsize - 2 + 1 - + qib_hdrget_offset(rhf_addr)) << 2) { + goto move_along; + } + + /* + * Both tiderr and qibhdrerr are set for all plain IB + * packets; only qibhdrerr should be set. + */ + if (unlikely(eflags)) + crcs += qib_rcv_hdrerr(rcd, ppd, rcd->ctxt, eflags, l, + etail, rhf_addr, hdr); + else if (etype == RCVHQ_RCV_TYPE_NON_KD) { + qib_ib_rcv(rcd, hdr, ebuf, tlen); + if (crcs) + crcs--; + else if (llic && *llic) + --*llic; + } +move_along: + l += rsize; + if (l >= maxcnt) + l = 0; + if (i == QIB_MAX_PKT_RECV) + last = 1; + + rhf_addr = (__le32 *) rcd->rcvhdrq + l + dd->rhf_offset; + if (dd->flags & QIB_NODMA_RTAIL) { + u32 seq = qib_hdrget_seq(rhf_addr); + + if (++rcd->seq_cnt > 13) + rcd->seq_cnt = 1; + if (seq != rcd->seq_cnt) + last = 1; + } else if (l == hdrqtail) + last = 1; + /* + * Update head regs etc., every 16 packets, if not last pkt, + * to help prevent rcvhdrq overflows, when many packets + * are processed and queue is nearly full. + * Don't request an interrupt for intermediate updates. + */ + lval = l; + if (!last && !(i & 0xf)) { + dd->f_update_usrhead(rcd, lval, updegr, etail, i); + updegr = 0; + } + } + + rcd->head = l; + + /* + * Iterate over all QPs waiting to respond. + * The list won't change since the IRQ is only run on one CPU. + */ + list_for_each_entry_safe(qp, nqp, &rcd->qp_wait_list, rspwait) { + list_del_init(&qp->rspwait); + if (qp->r_flags & RVT_R_RSP_NAK) { + qp->r_flags &= ~RVT_R_RSP_NAK; + qib_send_rc_ack(qp); + } + if (qp->r_flags & RVT_R_RSP_SEND) { + unsigned long flags; + + qp->r_flags &= ~RVT_R_RSP_SEND; + spin_lock_irqsave(&qp->s_lock, flags); + if (ib_rvt_state_ops[qp->state] & + RVT_PROCESS_OR_FLUSH_SEND) + qib_schedule_send(qp); + spin_unlock_irqrestore(&qp->s_lock, flags); + } + rvt_put_qp(qp); + } + +bail: + /* Report number of packets consumed */ + if (npkts) + *npkts = i; + + /* + * Always write head at end, and setup rcv interrupt, even + * if no packets were processed. + */ + lval = (u64)rcd->head | dd->rhdrhead_intr_off; + dd->f_update_usrhead(rcd, lval, updegr, etail, i); + return crcs; +} + +/** + * qib_set_mtu - set the MTU + * @ppd: the perport data + * @arg: the new MTU + * + * We can handle "any" incoming size, the issue here is whether we + * need to restrict our outgoing size. For now, we don't do any + * sanity checking on this, and we don't deal with what happens to + * programs that are already running when the size changes. + * NOTE: changing the MTU will usually cause the IBC to go back to + * link INIT state... + */ +int qib_set_mtu(struct qib_pportdata *ppd, u16 arg) +{ + u32 piosize; + int ret, chk; + + if (arg != 256 && arg != 512 && arg != 1024 && arg != 2048 && + arg != 4096) { + ret = -EINVAL; + goto bail; + } + chk = ib_mtu_enum_to_int(qib_ibmtu); + if (chk > 0 && arg > chk) { + ret = -EINVAL; + goto bail; + } + + piosize = ppd->ibmaxlen; + ppd->ibmtu = arg; + + if (arg >= (piosize - QIB_PIO_MAXIBHDR)) { + /* Only if it's not the initial value (or reset to it) */ + if (piosize != ppd->init_ibmaxlen) { + if (arg > piosize && arg <= ppd->init_ibmaxlen) + piosize = ppd->init_ibmaxlen - 2 * sizeof(u32); + ppd->ibmaxlen = piosize; + } + } else if ((arg + QIB_PIO_MAXIBHDR) != ppd->ibmaxlen) { + piosize = arg + QIB_PIO_MAXIBHDR - 2 * sizeof(u32); + ppd->ibmaxlen = piosize; + } + + ppd->dd->f_set_ib_cfg(ppd, QIB_IB_CFG_MTU, 0); + + ret = 0; + +bail: + return ret; +} + +int qib_set_lid(struct qib_pportdata *ppd, u32 lid, u8 lmc) +{ + struct qib_devdata *dd = ppd->dd; + + ppd->lid = lid; + ppd->lmc = lmc; + + dd->f_set_ib_cfg(ppd, QIB_IB_CFG_LIDLMC, + lid | (~((1U << lmc) - 1)) << 16); + + qib_devinfo(dd->pcidev, "IB%u:%u got a lid: 0x%x\n", + dd->unit, ppd->port, lid); + + return 0; +} + +/* + * Following deal with the "obviously simple" task of overriding the state + * of the LEDS, which normally indicate link physical and logical status. + * The complications arise in dealing with different hardware mappings + * and the board-dependent routine being called from interrupts. + * and then there's the requirement to _flash_ them. + */ +#define LED_OVER_FREQ_SHIFT 8 +#define LED_OVER_FREQ_MASK (0xFF<<LED_OVER_FREQ_SHIFT) +/* Below is "non-zero" to force override, but both actual LEDs are off */ +#define LED_OVER_BOTH_OFF (8) + +static void qib_run_led_override(struct timer_list *t) +{ + struct qib_pportdata *ppd = from_timer(ppd, t, + led_override_timer); + struct qib_devdata *dd = ppd->dd; + int timeoff; + int ph_idx; + + if (!(dd->flags & QIB_INITTED)) + return; + + ph_idx = ppd->led_override_phase++ & 1; + ppd->led_override = ppd->led_override_vals[ph_idx]; + timeoff = ppd->led_override_timeoff; + + dd->f_setextled(ppd, 1); + /* + * don't re-fire the timer if user asked for it to be off; we let + * it fire one more time after they turn it off to simplify + */ + if (ppd->led_override_vals[0] || ppd->led_override_vals[1]) + mod_timer(&ppd->led_override_timer, jiffies + timeoff); +} + +void qib_set_led_override(struct qib_pportdata *ppd, unsigned int val) +{ + struct qib_devdata *dd = ppd->dd; + int timeoff, freq; + + if (!(dd->flags & QIB_INITTED)) + return; + + /* First check if we are blinking. If not, use 1HZ polling */ + timeoff = HZ; + freq = (val & LED_OVER_FREQ_MASK) >> LED_OVER_FREQ_SHIFT; + + if (freq) { + /* For blink, set each phase from one nybble of val */ + ppd->led_override_vals[0] = val & 0xF; + ppd->led_override_vals[1] = (val >> 4) & 0xF; + timeoff = (HZ << 4)/freq; + } else { + /* Non-blink set both phases the same. */ + ppd->led_override_vals[0] = val & 0xF; + ppd->led_override_vals[1] = val & 0xF; + } + ppd->led_override_timeoff = timeoff; + + /* + * If the timer has not already been started, do so. Use a "quick" + * timeout so the function will be called soon, to look at our request. + */ + if (atomic_inc_return(&ppd->led_override_timer_active) == 1) { + /* Need to start timer */ + timer_setup(&ppd->led_override_timer, qib_run_led_override, 0); + ppd->led_override_timer.expires = jiffies + 1; + add_timer(&ppd->led_override_timer); + } else { + if (ppd->led_override_vals[0] || ppd->led_override_vals[1]) + mod_timer(&ppd->led_override_timer, jiffies + 1); + atomic_dec(&ppd->led_override_timer_active); + } +} + +/** + * qib_reset_device - reset the chip if possible + * @unit: the device to reset + * + * Whether or not reset is successful, we attempt to re-initialize the chip + * (that is, much like a driver unload/reload). We clear the INITTED flag + * so that the various entry points will fail until we reinitialize. For + * now, we only allow this if no user contexts are open that use chip resources + */ +int qib_reset_device(int unit) +{ + int ret, i; + struct qib_devdata *dd = qib_lookup(unit); + struct qib_pportdata *ppd; + unsigned long flags; + int pidx; + + if (!dd) { + ret = -ENODEV; + goto bail; + } + + qib_devinfo(dd->pcidev, "Reset on unit %u requested\n", unit); + + if (!dd->kregbase || !(dd->flags & QIB_PRESENT)) { + qib_devinfo(dd->pcidev, + "Invalid unit number %u or not initialized or not present\n", + unit); + ret = -ENXIO; + goto bail; + } + + spin_lock_irqsave(&dd->uctxt_lock, flags); + if (dd->rcd) + for (i = dd->first_user_ctxt; i < dd->cfgctxts; i++) { + if (!dd->rcd[i] || !dd->rcd[i]->cnt) + continue; + spin_unlock_irqrestore(&dd->uctxt_lock, flags); + ret = -EBUSY; + goto bail; + } + spin_unlock_irqrestore(&dd->uctxt_lock, flags); + + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + ppd = dd->pport + pidx; + if (atomic_read(&ppd->led_override_timer_active)) { + /* Need to stop LED timer, _then_ shut off LEDs */ + del_timer_sync(&ppd->led_override_timer); + atomic_set(&ppd->led_override_timer_active, 0); + } + + /* Shut off LEDs after we are sure timer is not running */ + ppd->led_override = LED_OVER_BOTH_OFF; + dd->f_setextled(ppd, 0); + if (dd->flags & QIB_HAS_SEND_DMA) + qib_teardown_sdma(ppd); + } + + ret = dd->f_reset(dd); + if (ret == 1) + ret = qib_init(dd, 1); + else + ret = -EAGAIN; + if (ret) + qib_dev_err(dd, + "Reinitialize unit %u after reset failed with %d\n", + unit, ret); + else + qib_devinfo(dd->pcidev, + "Reinitialized unit %u after resetting\n", + unit); + +bail: + return ret; +} diff --git a/drivers/infiniband/hw/qib/qib_eeprom.c b/drivers/infiniband/hw/qib/qib_eeprom.c new file mode 100644 index 000000000..bf660c001 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_eeprom.c @@ -0,0 +1,271 @@ +/* + * Copyright (c) 2012 Intel Corporation. All rights reserved. + * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/delay.h> +#include <linux/pci.h> +#include <linux/vmalloc.h> + +#include "qib.h" + +/* + * Functions specific to the serial EEPROM on cards handled by ib_qib. + * The actual serail interface code is in qib_twsi.c. This file is a client + */ + +/** + * qib_eeprom_read - receives bytes from the eeprom via I2C + * @dd: the qlogic_ib device + * @eeprom_offset: address to read from + * @buff: where to store result + * @len: number of bytes to receive + */ +int qib_eeprom_read(struct qib_devdata *dd, u8 eeprom_offset, + void *buff, int len) +{ + int ret; + + ret = mutex_lock_interruptible(&dd->eep_lock); + if (!ret) { + ret = qib_twsi_reset(dd); + if (ret) + qib_dev_err(dd, "EEPROM Reset for read failed\n"); + else + ret = qib_twsi_blk_rd(dd, dd->twsi_eeprom_dev, + eeprom_offset, buff, len); + mutex_unlock(&dd->eep_lock); + } + + return ret; +} + +/* + * Actually update the eeprom, first doing write enable if + * needed, then restoring write enable state. + * Must be called with eep_lock held + */ +static int eeprom_write_with_enable(struct qib_devdata *dd, u8 offset, + const void *buf, int len) +{ + int ret, pwen; + + pwen = dd->f_eeprom_wen(dd, 1); + ret = qib_twsi_reset(dd); + if (ret) + qib_dev_err(dd, "EEPROM Reset for write failed\n"); + else + ret = qib_twsi_blk_wr(dd, dd->twsi_eeprom_dev, + offset, buf, len); + dd->f_eeprom_wen(dd, pwen); + return ret; +} + +/** + * qib_eeprom_write - writes data to the eeprom via I2C + * @dd: the qlogic_ib device + * @eeprom_offset: where to place data + * @buff: data to write + * @len: number of bytes to write + */ +int qib_eeprom_write(struct qib_devdata *dd, u8 eeprom_offset, + const void *buff, int len) +{ + int ret; + + ret = mutex_lock_interruptible(&dd->eep_lock); + if (!ret) { + ret = eeprom_write_with_enable(dd, eeprom_offset, buff, len); + mutex_unlock(&dd->eep_lock); + } + + return ret; +} + +static u8 flash_csum(struct qib_flash *ifp, int adjust) +{ + u8 *ip = (u8 *) ifp; + u8 csum = 0, len; + + /* + * Limit length checksummed to max length of actual data. + * Checksum of erased eeprom will still be bad, but we avoid + * reading past the end of the buffer we were passed. + */ + len = ifp->if_length; + if (len > sizeof(struct qib_flash)) + len = sizeof(struct qib_flash); + while (len--) + csum += *ip++; + csum -= ifp->if_csum; + csum = ~csum; + if (adjust) + ifp->if_csum = csum; + + return csum; +} + +/** + * qib_get_eeprom_info- get the GUID et al. from the TSWI EEPROM device + * @dd: the qlogic_ib device + * + * We have the capability to use the nguid field, and get + * the guid from the first chip's flash, to use for all of them. + */ +void qib_get_eeprom_info(struct qib_devdata *dd) +{ + void *buf; + struct qib_flash *ifp; + __be64 guid; + int len, eep_stat; + u8 csum, *bguid; + int t = dd->unit; + struct qib_devdata *dd0 = qib_lookup(0); + + if (t && dd0->nguid > 1 && t <= dd0->nguid) { + u8 oguid; + + dd->base_guid = dd0->base_guid; + bguid = (u8 *) &dd->base_guid; + + oguid = bguid[7]; + bguid[7] += t; + if (oguid > bguid[7]) { + if (bguid[6] == 0xff) { + if (bguid[5] == 0xff) { + qib_dev_err(dd, + "Can't set GUID from base, wraps to OUI!\n"); + dd->base_guid = 0; + goto bail; + } + bguid[5]++; + } + bguid[6]++; + } + dd->nguid = 1; + goto bail; + } + + /* + * Read full flash, not just currently used part, since it may have + * been written with a newer definition. + * */ + len = sizeof(struct qib_flash); + buf = vmalloc(len); + if (!buf) + goto bail; + + /* + * Use "public" eeprom read function, which does locking and + * figures out device. This will migrate to chip-specific. + */ + eep_stat = qib_eeprom_read(dd, 0, buf, len); + + if (eep_stat) { + qib_dev_err(dd, "Failed reading GUID from eeprom\n"); + goto done; + } + ifp = (struct qib_flash *)buf; + + csum = flash_csum(ifp, 0); + if (csum != ifp->if_csum) { + qib_devinfo(dd->pcidev, + "Bad I2C flash checksum: 0x%x, not 0x%x\n", + csum, ifp->if_csum); + goto done; + } + if (*(__be64 *) ifp->if_guid == cpu_to_be64(0) || + *(__be64 *) ifp->if_guid == ~cpu_to_be64(0)) { + qib_dev_err(dd, + "Invalid GUID %llx from flash; ignoring\n", + *(unsigned long long *) ifp->if_guid); + /* don't allow GUID if all 0 or all 1's */ + goto done; + } + + /* complain, but allow it */ + if (*(u64 *) ifp->if_guid == 0x100007511000000ULL) + qib_devinfo(dd->pcidev, + "Warning, GUID %llx is default, probably not correct!\n", + *(unsigned long long *) ifp->if_guid); + + bguid = ifp->if_guid; + if (!bguid[0] && !bguid[1] && !bguid[2]) { + /* + * Original incorrect GUID format in flash; fix in + * core copy, by shifting up 2 octets; don't need to + * change top octet, since both it and shifted are 0. + */ + bguid[1] = bguid[3]; + bguid[2] = bguid[4]; + bguid[3] = 0; + bguid[4] = 0; + guid = *(__be64 *) ifp->if_guid; + } else + guid = *(__be64 *) ifp->if_guid; + dd->base_guid = guid; + dd->nguid = ifp->if_numguid; + /* + * Things are slightly complicated by the desire to transparently + * support both the Pathscale 10-digit serial number and the QLogic + * 13-character version. + */ + if ((ifp->if_fversion > 1) && ifp->if_sprefix[0] && + ((u8 *) ifp->if_sprefix)[0] != 0xFF) { + char *snp = dd->serial; + + /* + * This board has a Serial-prefix, which is stored + * elsewhere for backward-compatibility. + */ + memcpy(snp, ifp->if_sprefix, sizeof(ifp->if_sprefix)); + snp[sizeof(ifp->if_sprefix)] = '\0'; + len = strlen(snp); + snp += len; + len = sizeof(dd->serial) - len; + if (len > sizeof(ifp->if_serial)) + len = sizeof(ifp->if_serial); + memcpy(snp, ifp->if_serial, len); + } else { + memcpy(dd->serial, ifp->if_serial, sizeof(ifp->if_serial)); + } + if (!strstr(ifp->if_comment, "Tested successfully")) + qib_dev_err(dd, + "Board SN %s did not pass functional test: %s\n", + dd->serial, ifp->if_comment); + +done: + vfree(buf); + +bail:; +} + diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c new file mode 100644 index 000000000..3937144b2 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_file_ops.c @@ -0,0 +1,2404 @@ +/* + * Copyright (c) 2012, 2013 Intel Corporation. All rights reserved. + * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/pci.h> +#include <linux/poll.h> +#include <linux/cdev.h> +#include <linux/swap.h> +#include <linux/vmalloc.h> +#include <linux/highmem.h> +#include <linux/io.h> +#include <linux/jiffies.h> +#include <linux/delay.h> +#include <linux/export.h> +#include <linux/uio.h> +#include <linux/pgtable.h> + +#include <rdma/ib.h> + +#include "qib.h" +#include "qib_common.h" +#include "qib_user_sdma.h" + +#undef pr_fmt +#define pr_fmt(fmt) QIB_DRV_NAME ": " fmt + +static int qib_open(struct inode *, struct file *); +static int qib_close(struct inode *, struct file *); +static ssize_t qib_write(struct file *, const char __user *, size_t, loff_t *); +static ssize_t qib_write_iter(struct kiocb *, struct iov_iter *); +static __poll_t qib_poll(struct file *, struct poll_table_struct *); +static int qib_mmapf(struct file *, struct vm_area_struct *); + +/* + * This is really, really weird shit - write() and writev() here + * have completely unrelated semantics. Sucky userland ABI, + * film at 11. + */ +static const struct file_operations qib_file_ops = { + .owner = THIS_MODULE, + .write = qib_write, + .write_iter = qib_write_iter, + .open = qib_open, + .release = qib_close, + .poll = qib_poll, + .mmap = qib_mmapf, + .llseek = noop_llseek, +}; + +/* + * Convert kernel virtual addresses to physical addresses so they don't + * potentially conflict with the chip addresses used as mmap offsets. + * It doesn't really matter what mmap offset we use as long as we can + * interpret it correctly. + */ +static u64 cvt_kvaddr(void *p) +{ + struct page *page; + u64 paddr = 0; + + page = vmalloc_to_page(p); + if (page) + paddr = page_to_pfn(page) << PAGE_SHIFT; + + return paddr; +} + +static int qib_get_base_info(struct file *fp, void __user *ubase, + size_t ubase_size) +{ + struct qib_ctxtdata *rcd = ctxt_fp(fp); + int ret = 0; + struct qib_base_info *kinfo = NULL; + struct qib_devdata *dd = rcd->dd; + struct qib_pportdata *ppd = rcd->ppd; + unsigned subctxt_cnt; + int shared, master; + size_t sz; + + subctxt_cnt = rcd->subctxt_cnt; + if (!subctxt_cnt) { + shared = 0; + master = 0; + subctxt_cnt = 1; + } else { + shared = 1; + master = !subctxt_fp(fp); + } + + sz = sizeof(*kinfo); + /* If context sharing is not requested, allow the old size structure */ + if (!shared) + sz -= 7 * sizeof(u64); + if (ubase_size < sz) { + ret = -EINVAL; + goto bail; + } + + kinfo = kzalloc(sizeof(*kinfo), GFP_KERNEL); + if (kinfo == NULL) { + ret = -ENOMEM; + goto bail; + } + + ret = dd->f_get_base_info(rcd, kinfo); + if (ret < 0) + goto bail; + + kinfo->spi_rcvhdr_cnt = dd->rcvhdrcnt; + kinfo->spi_rcvhdrent_size = dd->rcvhdrentsize; + kinfo->spi_tidegrcnt = rcd->rcvegrcnt; + kinfo->spi_rcv_egrbufsize = dd->rcvegrbufsize; + /* + * have to mmap whole thing + */ + kinfo->spi_rcv_egrbuftotlen = + rcd->rcvegrbuf_chunks * rcd->rcvegrbuf_size; + kinfo->spi_rcv_egrperchunk = rcd->rcvegrbufs_perchunk; + kinfo->spi_rcv_egrchunksize = kinfo->spi_rcv_egrbuftotlen / + rcd->rcvegrbuf_chunks; + kinfo->spi_tidcnt = dd->rcvtidcnt / subctxt_cnt; + if (master) + kinfo->spi_tidcnt += dd->rcvtidcnt % subctxt_cnt; + /* + * for this use, may be cfgctxts summed over all chips that + * are configured and present + */ + kinfo->spi_nctxts = dd->cfgctxts; + /* unit (chip/board) our context is on */ + kinfo->spi_unit = dd->unit; + kinfo->spi_port = ppd->port; + /* for now, only a single page */ + kinfo->spi_tid_maxsize = PAGE_SIZE; + + /* + * Doing this per context, and based on the skip value, etc. This has + * to be the actual buffer size, since the protocol code treats it + * as an array. + * + * These have to be set to user addresses in the user code via mmap. + * These values are used on return to user code for the mmap target + * addresses only. For 32 bit, same 44 bit address problem, so use + * the physical address, not virtual. Before 2.6.11, using the + * page_address() macro worked, but in 2.6.11, even that returns the + * full 64 bit address (upper bits all 1's). So far, using the + * physical addresses (or chip offsets, for chip mapping) works, but + * no doubt some future kernel release will change that, and we'll be + * on to yet another method of dealing with this. + * Normally only one of rcvhdr_tailaddr or rhf_offset is useful + * since the chips with non-zero rhf_offset don't normally + * enable tail register updates to host memory, but for testing, + * both can be enabled and used. + */ + kinfo->spi_rcvhdr_base = (u64) rcd->rcvhdrq_phys; + kinfo->spi_rcvhdr_tailaddr = (u64) rcd->rcvhdrqtailaddr_phys; + kinfo->spi_rhf_offset = dd->rhf_offset; + kinfo->spi_rcv_egrbufs = (u64) rcd->rcvegr_phys; + kinfo->spi_pioavailaddr = (u64) dd->pioavailregs_phys; + /* setup per-unit (not port) status area for user programs */ + kinfo->spi_status = (u64) kinfo->spi_pioavailaddr + + (char *) ppd->statusp - + (char *) dd->pioavailregs_dma; + kinfo->spi_uregbase = (u64) dd->uregbase + dd->ureg_align * rcd->ctxt; + if (!shared) { + kinfo->spi_piocnt = rcd->piocnt; + kinfo->spi_piobufbase = (u64) rcd->piobufs; + kinfo->spi_sendbuf_status = cvt_kvaddr(rcd->user_event_mask); + } else if (master) { + kinfo->spi_piocnt = (rcd->piocnt / subctxt_cnt) + + (rcd->piocnt % subctxt_cnt); + /* Master's PIO buffers are after all the slave's */ + kinfo->spi_piobufbase = (u64) rcd->piobufs + + dd->palign * + (rcd->piocnt - kinfo->spi_piocnt); + } else { + unsigned slave = subctxt_fp(fp) - 1; + + kinfo->spi_piocnt = rcd->piocnt / subctxt_cnt; + kinfo->spi_piobufbase = (u64) rcd->piobufs + + dd->palign * kinfo->spi_piocnt * slave; + } + + if (shared) { + kinfo->spi_sendbuf_status = + cvt_kvaddr(&rcd->user_event_mask[subctxt_fp(fp)]); + /* only spi_subctxt_* fields should be set in this block! */ + kinfo->spi_subctxt_uregbase = cvt_kvaddr(rcd->subctxt_uregbase); + + kinfo->spi_subctxt_rcvegrbuf = + cvt_kvaddr(rcd->subctxt_rcvegrbuf); + kinfo->spi_subctxt_rcvhdr_base = + cvt_kvaddr(rcd->subctxt_rcvhdr_base); + } + + /* + * All user buffers are 2KB buffers. If we ever support + * giving 4KB buffers to user processes, this will need some + * work. Can't use piobufbase directly, because it has + * both 2K and 4K buffer base values. + */ + kinfo->spi_pioindex = (kinfo->spi_piobufbase - dd->pio2k_bufbase) / + dd->palign; + kinfo->spi_pioalign = dd->palign; + kinfo->spi_qpair = QIB_KD_QP; + /* + * user mode PIO buffers are always 2KB, even when 4KB can + * be received, and sent via the kernel; this is ibmaxlen + * for 2K MTU. + */ + kinfo->spi_piosize = dd->piosize2k - 2 * sizeof(u32); + kinfo->spi_mtu = ppd->ibmaxlen; /* maxlen, not ibmtu */ + kinfo->spi_ctxt = rcd->ctxt; + kinfo->spi_subctxt = subctxt_fp(fp); + kinfo->spi_sw_version = QIB_KERN_SWVERSION; + kinfo->spi_sw_version |= 1U << 31; /* QLogic-built, not kernel.org */ + kinfo->spi_hw_version = dd->revision; + + if (master) + kinfo->spi_runtime_flags |= QIB_RUNTIME_MASTER; + + sz = (ubase_size < sizeof(*kinfo)) ? ubase_size : sizeof(*kinfo); + if (copy_to_user(ubase, kinfo, sz)) + ret = -EFAULT; +bail: + kfree(kinfo); + return ret; +} + +/** + * qib_tid_update - update a context TID + * @rcd: the context + * @fp: the qib device file + * @ti: the TID information + * + * The new implementation as of Oct 2004 is that the driver assigns + * the tid and returns it to the caller. To reduce search time, we + * keep a cursor for each context, walking the shadow tid array to find + * one that's not in use. + * + * For now, if we can't allocate the full list, we fail, although + * in the long run, we'll allocate as many as we can, and the + * caller will deal with that by trying the remaining pages later. + * That means that when we fail, we have to mark the tids as not in + * use again, in our shadow copy. + * + * It's up to the caller to free the tids when they are done. + * We'll unlock the pages as they free them. + * + * Also, right now we are locking one page at a time, but since + * the intended use of this routine is for a single group of + * virtually contiguous pages, that should change to improve + * performance. + */ +static int qib_tid_update(struct qib_ctxtdata *rcd, struct file *fp, + const struct qib_tid_info *ti) +{ + int ret = 0, ntids; + u32 tid, ctxttid, cnt, i, tidcnt, tidoff; + u16 *tidlist; + struct qib_devdata *dd = rcd->dd; + u64 physaddr; + unsigned long vaddr; + u64 __iomem *tidbase; + unsigned long tidmap[8]; + struct page **pagep = NULL; + unsigned subctxt = subctxt_fp(fp); + + if (!dd->pageshadow) { + ret = -ENOMEM; + goto done; + } + + cnt = ti->tidcnt; + if (!cnt) { + ret = -EFAULT; + goto done; + } + ctxttid = rcd->ctxt * dd->rcvtidcnt; + if (!rcd->subctxt_cnt) { + tidcnt = dd->rcvtidcnt; + tid = rcd->tidcursor; + tidoff = 0; + } else if (!subctxt) { + tidcnt = (dd->rcvtidcnt / rcd->subctxt_cnt) + + (dd->rcvtidcnt % rcd->subctxt_cnt); + tidoff = dd->rcvtidcnt - tidcnt; + ctxttid += tidoff; + tid = tidcursor_fp(fp); + } else { + tidcnt = dd->rcvtidcnt / rcd->subctxt_cnt; + tidoff = tidcnt * (subctxt - 1); + ctxttid += tidoff; + tid = tidcursor_fp(fp); + } + if (cnt > tidcnt) { + /* make sure it all fits in tid_pg_list */ + qib_devinfo(dd->pcidev, + "Process tried to allocate %u TIDs, only trying max (%u)\n", + cnt, tidcnt); + cnt = tidcnt; + } + pagep = (struct page **) rcd->tid_pg_list; + tidlist = (u16 *) &pagep[dd->rcvtidcnt]; + pagep += tidoff; + tidlist += tidoff; + + memset(tidmap, 0, sizeof(tidmap)); + /* before decrement; chip actual # */ + ntids = tidcnt; + tidbase = (u64 __iomem *) (((char __iomem *) dd->kregbase) + + dd->rcvtidbase + + ctxttid * sizeof(*tidbase)); + + /* virtual address of first page in transfer */ + vaddr = ti->tidvaddr; + if (!access_ok((void __user *) vaddr, + cnt * PAGE_SIZE)) { + ret = -EFAULT; + goto done; + } + ret = qib_get_user_pages(vaddr, cnt, pagep); + if (ret) { + /* + * if (ret == -EBUSY) + * We can't continue because the pagep array won't be + * initialized. This should never happen, + * unless perhaps the user has mpin'ed the pages + * themselves. + */ + qib_devinfo( + dd->pcidev, + "Failed to lock addr %p, %u pages: errno %d\n", + (void *) vaddr, cnt, -ret); + goto done; + } + for (i = 0; i < cnt; i++, vaddr += PAGE_SIZE) { + dma_addr_t daddr; + + for (; ntids--; tid++) { + if (tid == tidcnt) + tid = 0; + if (!dd->pageshadow[ctxttid + tid]) + break; + } + if (ntids < 0) { + /* + * Oops, wrapped all the way through their TIDs, + * and didn't have enough free; see comments at + * start of routine + */ + i--; /* last tidlist[i] not filled in */ + ret = -ENOMEM; + break; + } + ret = qib_map_page(dd->pcidev, pagep[i], &daddr); + if (ret) + break; + + tidlist[i] = tid + tidoff; + /* we "know" system pages and TID pages are same size */ + dd->pageshadow[ctxttid + tid] = pagep[i]; + dd->physshadow[ctxttid + tid] = daddr; + /* + * don't need atomic or it's overhead + */ + __set_bit(tid, tidmap); + physaddr = dd->physshadow[ctxttid + tid]; + /* PERFORMANCE: below should almost certainly be cached */ + dd->f_put_tid(dd, &tidbase[tid], + RCVHQ_RCV_TYPE_EXPECTED, physaddr); + /* + * don't check this tid in qib_ctxtshadow, since we + * just filled it in; start with the next one. + */ + tid++; + } + + if (ret) { + u32 limit; +cleanup: + /* jump here if copy out of updated info failed... */ + /* same code that's in qib_free_tid() */ + limit = sizeof(tidmap) * BITS_PER_BYTE; + if (limit > tidcnt) + /* just in case size changes in future */ + limit = tidcnt; + tid = find_first_bit((const unsigned long *)tidmap, limit); + for (; tid < limit; tid++) { + if (!test_bit(tid, tidmap)) + continue; + if (dd->pageshadow[ctxttid + tid]) { + dma_addr_t phys; + + phys = dd->physshadow[ctxttid + tid]; + dd->physshadow[ctxttid + tid] = dd->tidinvalid; + /* PERFORMANCE: below should almost certainly + * be cached + */ + dd->f_put_tid(dd, &tidbase[tid], + RCVHQ_RCV_TYPE_EXPECTED, + dd->tidinvalid); + dma_unmap_page(&dd->pcidev->dev, phys, + PAGE_SIZE, DMA_FROM_DEVICE); + dd->pageshadow[ctxttid + tid] = NULL; + } + } + qib_release_user_pages(pagep, cnt); + } else { + /* + * Copy the updated array, with qib_tid's filled in, back + * to user. Since we did the copy in already, this "should + * never fail" If it does, we have to clean up... + */ + if (copy_to_user((void __user *) + (unsigned long) ti->tidlist, + tidlist, cnt * sizeof(*tidlist))) { + ret = -EFAULT; + goto cleanup; + } + if (copy_to_user(u64_to_user_ptr(ti->tidmap), + tidmap, sizeof(tidmap))) { + ret = -EFAULT; + goto cleanup; + } + if (tid == tidcnt) + tid = 0; + if (!rcd->subctxt_cnt) + rcd->tidcursor = tid; + else + tidcursor_fp(fp) = tid; + } + +done: + return ret; +} + +/** + * qib_tid_free - free a context TID + * @rcd: the context + * @subctxt: the subcontext + * @ti: the TID info + * + * right now we are unlocking one page at a time, but since + * the intended use of this routine is for a single group of + * virtually contiguous pages, that should change to improve + * performance. We check that the TID is in range for this context + * but otherwise don't check validity; if user has an error and + * frees the wrong tid, it's only their own data that can thereby + * be corrupted. We do check that the TID was in use, for sanity + * We always use our idea of the saved address, not the address that + * they pass in to us. + */ +static int qib_tid_free(struct qib_ctxtdata *rcd, unsigned subctxt, + const struct qib_tid_info *ti) +{ + int ret = 0; + u32 tid, ctxttid, cnt, limit, tidcnt; + struct qib_devdata *dd = rcd->dd; + u64 __iomem *tidbase; + unsigned long tidmap[8]; + + if (!dd->pageshadow) { + ret = -ENOMEM; + goto done; + } + + if (copy_from_user(tidmap, u64_to_user_ptr(ti->tidmap), + sizeof(tidmap))) { + ret = -EFAULT; + goto done; + } + + ctxttid = rcd->ctxt * dd->rcvtidcnt; + if (!rcd->subctxt_cnt) + tidcnt = dd->rcvtidcnt; + else if (!subctxt) { + tidcnt = (dd->rcvtidcnt / rcd->subctxt_cnt) + + (dd->rcvtidcnt % rcd->subctxt_cnt); + ctxttid += dd->rcvtidcnt - tidcnt; + } else { + tidcnt = dd->rcvtidcnt / rcd->subctxt_cnt; + ctxttid += tidcnt * (subctxt - 1); + } + tidbase = (u64 __iomem *) ((char __iomem *)(dd->kregbase) + + dd->rcvtidbase + + ctxttid * sizeof(*tidbase)); + + limit = sizeof(tidmap) * BITS_PER_BYTE; + if (limit > tidcnt) + /* just in case size changes in future */ + limit = tidcnt; + tid = find_first_bit(tidmap, limit); + for (cnt = 0; tid < limit; tid++) { + /* + * small optimization; if we detect a run of 3 or so without + * any set, use find_first_bit again. That's mainly to + * accelerate the case where we wrapped, so we have some at + * the beginning, and some at the end, and a big gap + * in the middle. + */ + if (!test_bit(tid, tidmap)) + continue; + cnt++; + if (dd->pageshadow[ctxttid + tid]) { + struct page *p; + dma_addr_t phys; + + p = dd->pageshadow[ctxttid + tid]; + dd->pageshadow[ctxttid + tid] = NULL; + phys = dd->physshadow[ctxttid + tid]; + dd->physshadow[ctxttid + tid] = dd->tidinvalid; + /* PERFORMANCE: below should almost certainly be + * cached + */ + dd->f_put_tid(dd, &tidbase[tid], + RCVHQ_RCV_TYPE_EXPECTED, dd->tidinvalid); + dma_unmap_page(&dd->pcidev->dev, phys, PAGE_SIZE, + DMA_FROM_DEVICE); + qib_release_user_pages(&p, 1); + } + } +done: + return ret; +} + +/** + * qib_set_part_key - set a partition key + * @rcd: the context + * @key: the key + * + * We can have up to 4 active at a time (other than the default, which is + * always allowed). This is somewhat tricky, since multiple contexts may set + * the same key, so we reference count them, and clean up at exit. All 4 + * partition keys are packed into a single qlogic_ib register. It's an + * error for a process to set the same pkey multiple times. We provide no + * mechanism to de-allocate a pkey at this time, we may eventually need to + * do that. I've used the atomic operations, and no locking, and only make + * a single pass through what's available. This should be more than + * adequate for some time. I'll think about spinlocks or the like if and as + * it's necessary. + */ +static int qib_set_part_key(struct qib_ctxtdata *rcd, u16 key) +{ + struct qib_pportdata *ppd = rcd->ppd; + int i, pidx = -1; + bool any = false; + u16 lkey = key & 0x7FFF; + + if (lkey == (QIB_DEFAULT_P_KEY & 0x7FFF)) + /* nothing to do; this key always valid */ + return 0; + + if (!lkey) + return -EINVAL; + + /* + * Set the full membership bit, because it has to be + * set in the register or the packet, and it seems + * cleaner to set in the register than to force all + * callers to set it. + */ + key |= 0x8000; + + for (i = 0; i < ARRAY_SIZE(rcd->pkeys); i++) { + if (!rcd->pkeys[i] && pidx == -1) + pidx = i; + if (rcd->pkeys[i] == key) + return -EEXIST; + } + if (pidx == -1) + return -EBUSY; + for (i = 0; i < ARRAY_SIZE(ppd->pkeys); i++) { + if (!ppd->pkeys[i]) { + any = true; + continue; + } + if (ppd->pkeys[i] == key) { + atomic_t *pkrefs = &ppd->pkeyrefs[i]; + + if (atomic_inc_return(pkrefs) > 1) { + rcd->pkeys[pidx] = key; + return 0; + } + /* + * lost race, decrement count, catch below + */ + atomic_dec(pkrefs); + any = true; + } + if ((ppd->pkeys[i] & 0x7FFF) == lkey) + /* + * It makes no sense to have both the limited and + * full membership PKEY set at the same time since + * the unlimited one will disable the limited one. + */ + return -EEXIST; + } + if (!any) + return -EBUSY; + for (i = 0; i < ARRAY_SIZE(ppd->pkeys); i++) { + if (!ppd->pkeys[i] && + atomic_inc_return(&ppd->pkeyrefs[i]) == 1) { + rcd->pkeys[pidx] = key; + ppd->pkeys[i] = key; + (void) ppd->dd->f_set_ib_cfg(ppd, QIB_IB_CFG_PKEYS, 0); + return 0; + } + } + return -EBUSY; +} + +/** + * qib_manage_rcvq - manage a context's receive queue + * @rcd: the context + * @subctxt: the subcontext + * @start_stop: action to carry out + * + * start_stop == 0 disables receive on the context, for use in queue + * overflow conditions. start_stop==1 re-enables, to be used to + * re-init the software copy of the head register + */ +static int qib_manage_rcvq(struct qib_ctxtdata *rcd, unsigned subctxt, + int start_stop) +{ + struct qib_devdata *dd = rcd->dd; + unsigned int rcvctrl_op; + + if (subctxt) + goto bail; + /* atomically clear receive enable ctxt. */ + if (start_stop) { + /* + * On enable, force in-memory copy of the tail register to + * 0, so that protocol code doesn't have to worry about + * whether or not the chip has yet updated the in-memory + * copy or not on return from the system call. The chip + * always resets it's tail register back to 0 on a + * transition from disabled to enabled. + */ + if (rcd->rcvhdrtail_kvaddr) + qib_clear_rcvhdrtail(rcd); + rcvctrl_op = QIB_RCVCTRL_CTXT_ENB; + } else + rcvctrl_op = QIB_RCVCTRL_CTXT_DIS; + dd->f_rcvctrl(rcd->ppd, rcvctrl_op, rcd->ctxt); + /* always; new head should be equal to new tail; see above */ +bail: + return 0; +} + +static void qib_clean_part_key(struct qib_ctxtdata *rcd, + struct qib_devdata *dd) +{ + int i, j, pchanged = 0; + struct qib_pportdata *ppd = rcd->ppd; + + for (i = 0; i < ARRAY_SIZE(rcd->pkeys); i++) { + if (!rcd->pkeys[i]) + continue; + for (j = 0; j < ARRAY_SIZE(ppd->pkeys); j++) { + /* check for match independent of the global bit */ + if ((ppd->pkeys[j] & 0x7fff) != + (rcd->pkeys[i] & 0x7fff)) + continue; + if (atomic_dec_and_test(&ppd->pkeyrefs[j])) { + ppd->pkeys[j] = 0; + pchanged++; + } + break; + } + rcd->pkeys[i] = 0; + } + if (pchanged) + (void) ppd->dd->f_set_ib_cfg(ppd, QIB_IB_CFG_PKEYS, 0); +} + +/* common code for the mappings on dma_alloc_coherent mem */ +static int qib_mmap_mem(struct vm_area_struct *vma, struct qib_ctxtdata *rcd, + unsigned len, void *kvaddr, u32 write_ok, char *what) +{ + struct qib_devdata *dd = rcd->dd; + unsigned long pfn; + int ret; + + if ((vma->vm_end - vma->vm_start) > len) { + qib_devinfo(dd->pcidev, + "FAIL on %s: len %lx > %x\n", what, + vma->vm_end - vma->vm_start, len); + ret = -EFAULT; + goto bail; + } + + /* + * shared context user code requires rcvhdrq mapped r/w, others + * only allowed readonly mapping. + */ + if (!write_ok) { + if (vma->vm_flags & VM_WRITE) { + qib_devinfo(dd->pcidev, + "%s must be mapped readonly\n", what); + ret = -EPERM; + goto bail; + } + + /* don't allow them to later change with mprotect */ + vma->vm_flags &= ~VM_MAYWRITE; + } + + pfn = virt_to_phys(kvaddr) >> PAGE_SHIFT; + ret = remap_pfn_range(vma, vma->vm_start, pfn, + len, vma->vm_page_prot); + if (ret) + qib_devinfo(dd->pcidev, + "%s ctxt%u mmap of %lx, %x bytes failed: %d\n", + what, rcd->ctxt, pfn, len, ret); +bail: + return ret; +} + +static int mmap_ureg(struct vm_area_struct *vma, struct qib_devdata *dd, + u64 ureg) +{ + unsigned long phys; + unsigned long sz; + int ret; + + /* + * This is real hardware, so use io_remap. This is the mechanism + * for the user process to update the head registers for their ctxt + * in the chip. + */ + sz = dd->flags & QIB_HAS_HDRSUPP ? 2 * PAGE_SIZE : PAGE_SIZE; + if ((vma->vm_end - vma->vm_start) > sz) { + qib_devinfo(dd->pcidev, + "FAIL mmap userreg: reqlen %lx > PAGE\n", + vma->vm_end - vma->vm_start); + ret = -EFAULT; + } else { + phys = dd->physaddr + ureg; + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + + vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND; + ret = io_remap_pfn_range(vma, vma->vm_start, + phys >> PAGE_SHIFT, + vma->vm_end - vma->vm_start, + vma->vm_page_prot); + } + return ret; +} + +static int mmap_piobufs(struct vm_area_struct *vma, + struct qib_devdata *dd, + struct qib_ctxtdata *rcd, + unsigned piobufs, unsigned piocnt) +{ + unsigned long phys; + int ret; + + /* + * When we map the PIO buffers in the chip, we want to map them as + * writeonly, no read possible; unfortunately, x86 doesn't allow + * for this in hardware, but we still prevent users from asking + * for it. + */ + if ((vma->vm_end - vma->vm_start) > (piocnt * dd->palign)) { + qib_devinfo(dd->pcidev, + "FAIL mmap piobufs: reqlen %lx > PAGE\n", + vma->vm_end - vma->vm_start); + ret = -EINVAL; + goto bail; + } + + phys = dd->physaddr + piobufs; + +#if defined(__powerpc__) + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); +#endif + + /* + * don't allow them to later change to readable with mprotect (for when + * not initially mapped readable, as is normally the case) + */ + vma->vm_flags &= ~VM_MAYREAD; + vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND; + + /* We used PAT if wc_cookie == 0 */ + if (!dd->wc_cookie) + vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); + + ret = io_remap_pfn_range(vma, vma->vm_start, phys >> PAGE_SHIFT, + vma->vm_end - vma->vm_start, + vma->vm_page_prot); +bail: + return ret; +} + +static int mmap_rcvegrbufs(struct vm_area_struct *vma, + struct qib_ctxtdata *rcd) +{ + struct qib_devdata *dd = rcd->dd; + unsigned long start, size; + size_t total_size, i; + unsigned long pfn; + int ret; + + size = rcd->rcvegrbuf_size; + total_size = rcd->rcvegrbuf_chunks * size; + if ((vma->vm_end - vma->vm_start) > total_size) { + qib_devinfo(dd->pcidev, + "FAIL on egr bufs: reqlen %lx > actual %lx\n", + vma->vm_end - vma->vm_start, + (unsigned long) total_size); + ret = -EINVAL; + goto bail; + } + + if (vma->vm_flags & VM_WRITE) { + qib_devinfo(dd->pcidev, + "Can't map eager buffers as writable (flags=%lx)\n", + vma->vm_flags); + ret = -EPERM; + goto bail; + } + /* don't allow them to later change to writable with mprotect */ + vma->vm_flags &= ~VM_MAYWRITE; + + start = vma->vm_start; + + for (i = 0; i < rcd->rcvegrbuf_chunks; i++, start += size) { + pfn = virt_to_phys(rcd->rcvegrbuf[i]) >> PAGE_SHIFT; + ret = remap_pfn_range(vma, start, pfn, size, + vma->vm_page_prot); + if (ret < 0) + goto bail; + } + ret = 0; + +bail: + return ret; +} + +/* + * qib_file_vma_fault - handle a VMA page fault. + */ +static vm_fault_t qib_file_vma_fault(struct vm_fault *vmf) +{ + struct page *page; + + page = vmalloc_to_page((void *)(vmf->pgoff << PAGE_SHIFT)); + if (!page) + return VM_FAULT_SIGBUS; + + get_page(page); + vmf->page = page; + + return 0; +} + +static const struct vm_operations_struct qib_file_vm_ops = { + .fault = qib_file_vma_fault, +}; + +static int mmap_kvaddr(struct vm_area_struct *vma, u64 pgaddr, + struct qib_ctxtdata *rcd, unsigned subctxt) +{ + struct qib_devdata *dd = rcd->dd; + unsigned subctxt_cnt; + unsigned long len; + void *addr; + size_t size; + int ret = 0; + + subctxt_cnt = rcd->subctxt_cnt; + size = rcd->rcvegrbuf_chunks * rcd->rcvegrbuf_size; + + /* + * Each process has all the subctxt uregbase, rcvhdrq, and + * rcvegrbufs mmapped - as an array for all the processes, + * and also separately for this process. + */ + if (pgaddr == cvt_kvaddr(rcd->subctxt_uregbase)) { + addr = rcd->subctxt_uregbase; + size = PAGE_SIZE * subctxt_cnt; + } else if (pgaddr == cvt_kvaddr(rcd->subctxt_rcvhdr_base)) { + addr = rcd->subctxt_rcvhdr_base; + size = rcd->rcvhdrq_size * subctxt_cnt; + } else if (pgaddr == cvt_kvaddr(rcd->subctxt_rcvegrbuf)) { + addr = rcd->subctxt_rcvegrbuf; + size *= subctxt_cnt; + } else if (pgaddr == cvt_kvaddr(rcd->subctxt_uregbase + + PAGE_SIZE * subctxt)) { + addr = rcd->subctxt_uregbase + PAGE_SIZE * subctxt; + size = PAGE_SIZE; + } else if (pgaddr == cvt_kvaddr(rcd->subctxt_rcvhdr_base + + rcd->rcvhdrq_size * subctxt)) { + addr = rcd->subctxt_rcvhdr_base + + rcd->rcvhdrq_size * subctxt; + size = rcd->rcvhdrq_size; + } else if (pgaddr == cvt_kvaddr(&rcd->user_event_mask[subctxt])) { + addr = rcd->user_event_mask; + size = PAGE_SIZE; + } else if (pgaddr == cvt_kvaddr(rcd->subctxt_rcvegrbuf + + size * subctxt)) { + addr = rcd->subctxt_rcvegrbuf + size * subctxt; + /* rcvegrbufs are read-only on the slave */ + if (vma->vm_flags & VM_WRITE) { + qib_devinfo(dd->pcidev, + "Can't map eager buffers as writable (flags=%lx)\n", + vma->vm_flags); + ret = -EPERM; + goto bail; + } + /* + * Don't allow permission to later change to writable + * with mprotect. + */ + vma->vm_flags &= ~VM_MAYWRITE; + } else + goto bail; + len = vma->vm_end - vma->vm_start; + if (len > size) { + ret = -EINVAL; + goto bail; + } + + vma->vm_pgoff = (unsigned long) addr >> PAGE_SHIFT; + vma->vm_ops = &qib_file_vm_ops; + vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + ret = 1; + +bail: + return ret; +} + +/** + * qib_mmapf - mmap various structures into user space + * @fp: the file pointer + * @vma: the VM area + * + * We use this to have a shared buffer between the kernel and the user code + * for the rcvhdr queue, egr buffers, and the per-context user regs and pio + * buffers in the chip. We have the open and close entries so we can bump + * the ref count and keep the driver from being unloaded while still mapped. + */ +static int qib_mmapf(struct file *fp, struct vm_area_struct *vma) +{ + struct qib_ctxtdata *rcd; + struct qib_devdata *dd; + u64 pgaddr, ureg; + unsigned piobufs, piocnt; + int ret, match = 1; + + rcd = ctxt_fp(fp); + if (!rcd || !(vma->vm_flags & VM_SHARED)) { + ret = -EINVAL; + goto bail; + } + dd = rcd->dd; + + /* + * This is the qib_do_user_init() code, mapping the shared buffers + * and per-context user registers into the user process. The address + * referred to by vm_pgoff is the file offset passed via mmap(). + * For shared contexts, this is the kernel vmalloc() address of the + * pages to share with the master. + * For non-shared or master ctxts, this is a physical address. + * We only do one mmap for each space mapped. + */ + pgaddr = vma->vm_pgoff << PAGE_SHIFT; + + /* + * Check for 0 in case one of the allocations failed, but user + * called mmap anyway. + */ + if (!pgaddr) { + ret = -EINVAL; + goto bail; + } + + /* + * Physical addresses must fit in 40 bits for our hardware. + * Check for kernel virtual addresses first, anything else must + * match a HW or memory address. + */ + ret = mmap_kvaddr(vma, pgaddr, rcd, subctxt_fp(fp)); + if (ret) { + if (ret > 0) + ret = 0; + goto bail; + } + + ureg = dd->uregbase + dd->ureg_align * rcd->ctxt; + if (!rcd->subctxt_cnt) { + /* ctxt is not shared */ + piocnt = rcd->piocnt; + piobufs = rcd->piobufs; + } else if (!subctxt_fp(fp)) { + /* caller is the master */ + piocnt = (rcd->piocnt / rcd->subctxt_cnt) + + (rcd->piocnt % rcd->subctxt_cnt); + piobufs = rcd->piobufs + + dd->palign * (rcd->piocnt - piocnt); + } else { + unsigned slave = subctxt_fp(fp) - 1; + + /* caller is a slave */ + piocnt = rcd->piocnt / rcd->subctxt_cnt; + piobufs = rcd->piobufs + dd->palign * piocnt * slave; + } + + if (pgaddr == ureg) + ret = mmap_ureg(vma, dd, ureg); + else if (pgaddr == piobufs) + ret = mmap_piobufs(vma, dd, rcd, piobufs, piocnt); + else if (pgaddr == dd->pioavailregs_phys) + /* in-memory copy of pioavail registers */ + ret = qib_mmap_mem(vma, rcd, PAGE_SIZE, + (void *) dd->pioavailregs_dma, 0, + "pioavail registers"); + else if (pgaddr == rcd->rcvegr_phys) + ret = mmap_rcvegrbufs(vma, rcd); + else if (pgaddr == (u64) rcd->rcvhdrq_phys) + /* + * The rcvhdrq itself; multiple pages, contiguous + * from an i/o perspective. Shared contexts need + * to map r/w, so we allow writing. + */ + ret = qib_mmap_mem(vma, rcd, rcd->rcvhdrq_size, + rcd->rcvhdrq, 1, "rcvhdrq"); + else if (pgaddr == (u64) rcd->rcvhdrqtailaddr_phys) + /* in-memory copy of rcvhdrq tail register */ + ret = qib_mmap_mem(vma, rcd, PAGE_SIZE, + rcd->rcvhdrtail_kvaddr, 0, + "rcvhdrq tail"); + else + match = 0; + if (!match) + ret = -EINVAL; + + vma->vm_private_data = NULL; + + if (ret < 0) + qib_devinfo(dd->pcidev, + "mmap Failure %d: off %llx len %lx\n", + -ret, (unsigned long long)pgaddr, + vma->vm_end - vma->vm_start); +bail: + return ret; +} + +static __poll_t qib_poll_urgent(struct qib_ctxtdata *rcd, + struct file *fp, + struct poll_table_struct *pt) +{ + struct qib_devdata *dd = rcd->dd; + __poll_t pollflag; + + poll_wait(fp, &rcd->wait, pt); + + spin_lock_irq(&dd->uctxt_lock); + if (rcd->urgent != rcd->urgent_poll) { + pollflag = EPOLLIN | EPOLLRDNORM; + rcd->urgent_poll = rcd->urgent; + } else { + pollflag = 0; + set_bit(QIB_CTXT_WAITING_URG, &rcd->flag); + } + spin_unlock_irq(&dd->uctxt_lock); + + return pollflag; +} + +static __poll_t qib_poll_next(struct qib_ctxtdata *rcd, + struct file *fp, + struct poll_table_struct *pt) +{ + struct qib_devdata *dd = rcd->dd; + __poll_t pollflag; + + poll_wait(fp, &rcd->wait, pt); + + spin_lock_irq(&dd->uctxt_lock); + if (dd->f_hdrqempty(rcd)) { + set_bit(QIB_CTXT_WAITING_RCV, &rcd->flag); + dd->f_rcvctrl(rcd->ppd, QIB_RCVCTRL_INTRAVAIL_ENB, rcd->ctxt); + pollflag = 0; + } else + pollflag = EPOLLIN | EPOLLRDNORM; + spin_unlock_irq(&dd->uctxt_lock); + + return pollflag; +} + +static __poll_t qib_poll(struct file *fp, struct poll_table_struct *pt) +{ + struct qib_ctxtdata *rcd; + __poll_t pollflag; + + rcd = ctxt_fp(fp); + if (!rcd) + pollflag = EPOLLERR; + else if (rcd->poll_type == QIB_POLL_TYPE_URGENT) + pollflag = qib_poll_urgent(rcd, fp, pt); + else if (rcd->poll_type == QIB_POLL_TYPE_ANYRCV) + pollflag = qib_poll_next(rcd, fp, pt); + else /* invalid */ + pollflag = EPOLLERR; + + return pollflag; +} + +static void assign_ctxt_affinity(struct file *fp, struct qib_devdata *dd) +{ + struct qib_filedata *fd = fp->private_data; + const unsigned int weight = current->nr_cpus_allowed; + const struct cpumask *local_mask = cpumask_of_pcibus(dd->pcidev->bus); + int local_cpu; + + /* + * If process has NOT already set it's affinity, select and + * reserve a processor for it on the local NUMA node. + */ + if ((weight >= qib_cpulist_count) && + (cpumask_weight(local_mask) <= qib_cpulist_count)) { + for_each_cpu(local_cpu, local_mask) + if (!test_and_set_bit(local_cpu, qib_cpulist)) { + fd->rec_cpu_num = local_cpu; + return; + } + } + + /* + * If process has NOT already set it's affinity, select and + * reserve a processor for it, as a rendevous for all + * users of the driver. If they don't actually later + * set affinity to this cpu, or set it to some other cpu, + * it just means that sooner or later we don't recommend + * a cpu, and let the scheduler do it's best. + */ + if (weight >= qib_cpulist_count) { + int cpu; + + cpu = find_first_zero_bit(qib_cpulist, + qib_cpulist_count); + if (cpu == qib_cpulist_count) + qib_dev_err(dd, + "no cpus avail for affinity PID %u\n", + current->pid); + else { + __set_bit(cpu, qib_cpulist); + fd->rec_cpu_num = cpu; + } + } +} + +/* + * Check that userland and driver are compatible for subcontexts. + */ +static int qib_compatible_subctxts(int user_swmajor, int user_swminor) +{ + /* this code is written long-hand for clarity */ + if (QIB_USER_SWMAJOR != user_swmajor) { + /* no promise of compatibility if major mismatch */ + return 0; + } + if (QIB_USER_SWMAJOR == 1) { + switch (QIB_USER_SWMINOR) { + case 0: + case 1: + case 2: + /* no subctxt implementation so cannot be compatible */ + return 0; + case 3: + /* 3 is only compatible with itself */ + return user_swminor == 3; + default: + /* >= 4 are compatible (or are expected to be) */ + return user_swminor <= QIB_USER_SWMINOR; + } + } + /* make no promises yet for future major versions */ + return 0; +} + +static int init_subctxts(struct qib_devdata *dd, + struct qib_ctxtdata *rcd, + const struct qib_user_info *uinfo) +{ + int ret = 0; + unsigned num_subctxts; + size_t size; + + /* + * If the user is requesting zero subctxts, + * skip the subctxt allocation. + */ + if (uinfo->spu_subctxt_cnt <= 0) + goto bail; + num_subctxts = uinfo->spu_subctxt_cnt; + + /* Check for subctxt compatibility */ + if (!qib_compatible_subctxts(uinfo->spu_userversion >> 16, + uinfo->spu_userversion & 0xffff)) { + qib_devinfo(dd->pcidev, + "Mismatched user version (%d.%d) and driver version (%d.%d) while context sharing. Ensure that driver and library are from the same release.\n", + (int) (uinfo->spu_userversion >> 16), + (int) (uinfo->spu_userversion & 0xffff), + QIB_USER_SWMAJOR, QIB_USER_SWMINOR); + goto bail; + } + if (num_subctxts > QLOGIC_IB_MAX_SUBCTXT) { + ret = -EINVAL; + goto bail; + } + + rcd->subctxt_uregbase = vmalloc_user(PAGE_SIZE * num_subctxts); + if (!rcd->subctxt_uregbase) { + ret = -ENOMEM; + goto bail; + } + /* Note: rcd->rcvhdrq_size isn't initialized yet. */ + size = ALIGN(dd->rcvhdrcnt * dd->rcvhdrentsize * + sizeof(u32), PAGE_SIZE) * num_subctxts; + rcd->subctxt_rcvhdr_base = vmalloc_user(size); + if (!rcd->subctxt_rcvhdr_base) { + ret = -ENOMEM; + goto bail_ureg; + } + + rcd->subctxt_rcvegrbuf = vmalloc_user(rcd->rcvegrbuf_chunks * + rcd->rcvegrbuf_size * + num_subctxts); + if (!rcd->subctxt_rcvegrbuf) { + ret = -ENOMEM; + goto bail_rhdr; + } + + rcd->subctxt_cnt = uinfo->spu_subctxt_cnt; + rcd->subctxt_id = uinfo->spu_subctxt_id; + rcd->active_slaves = 1; + rcd->redirect_seq_cnt = 1; + set_bit(QIB_CTXT_MASTER_UNINIT, &rcd->flag); + goto bail; + +bail_rhdr: + vfree(rcd->subctxt_rcvhdr_base); +bail_ureg: + vfree(rcd->subctxt_uregbase); + rcd->subctxt_uregbase = NULL; +bail: + return ret; +} + +static int setup_ctxt(struct qib_pportdata *ppd, int ctxt, + struct file *fp, const struct qib_user_info *uinfo) +{ + struct qib_filedata *fd = fp->private_data; + struct qib_devdata *dd = ppd->dd; + struct qib_ctxtdata *rcd; + void *ptmp = NULL; + int ret; + int numa_id; + + assign_ctxt_affinity(fp, dd); + + numa_id = qib_numa_aware ? ((fd->rec_cpu_num != -1) ? + cpu_to_node(fd->rec_cpu_num) : + numa_node_id()) : dd->assigned_node_id; + + rcd = qib_create_ctxtdata(ppd, ctxt, numa_id); + + /* + * Allocate memory for use in qib_tid_update() at open to + * reduce cost of expected send setup per message segment + */ + if (rcd) + ptmp = kmalloc(dd->rcvtidcnt * sizeof(u16) + + dd->rcvtidcnt * sizeof(struct page **), + GFP_KERNEL); + + if (!rcd || !ptmp) { + qib_dev_err(dd, + "Unable to allocate ctxtdata memory, failing open\n"); + ret = -ENOMEM; + goto bailerr; + } + rcd->userversion = uinfo->spu_userversion; + ret = init_subctxts(dd, rcd, uinfo); + if (ret) + goto bailerr; + rcd->tid_pg_list = ptmp; + rcd->pid = current->pid; + init_waitqueue_head(&dd->rcd[ctxt]->wait); + get_task_comm(rcd->comm, current); + ctxt_fp(fp) = rcd; + qib_stats.sps_ctxts++; + dd->freectxts--; + ret = 0; + goto bail; + +bailerr: + if (fd->rec_cpu_num != -1) + __clear_bit(fd->rec_cpu_num, qib_cpulist); + + dd->rcd[ctxt] = NULL; + kfree(rcd); + kfree(ptmp); +bail: + return ret; +} + +static inline int usable(struct qib_pportdata *ppd) +{ + struct qib_devdata *dd = ppd->dd; + + return dd && (dd->flags & QIB_PRESENT) && dd->kregbase && ppd->lid && + (ppd->lflags & QIBL_LINKACTIVE); +} + +/* + * Select a context on the given device, either using a requested port + * or the port based on the context number. + */ +static int choose_port_ctxt(struct file *fp, struct qib_devdata *dd, u32 port, + const struct qib_user_info *uinfo) +{ + struct qib_pportdata *ppd = NULL; + int ret, ctxt; + + if (port) { + if (!usable(dd->pport + port - 1)) { + ret = -ENETDOWN; + goto done; + } else + ppd = dd->pport + port - 1; + } + for (ctxt = dd->first_user_ctxt; ctxt < dd->cfgctxts && dd->rcd[ctxt]; + ctxt++) + ; + if (ctxt == dd->cfgctxts) { + ret = -EBUSY; + goto done; + } + if (!ppd) { + u32 pidx = ctxt % dd->num_pports; + + if (usable(dd->pport + pidx)) + ppd = dd->pport + pidx; + else { + for (pidx = 0; pidx < dd->num_pports && !ppd; + pidx++) + if (usable(dd->pport + pidx)) + ppd = dd->pport + pidx; + } + } + ret = ppd ? setup_ctxt(ppd, ctxt, fp, uinfo) : -ENETDOWN; +done: + return ret; +} + +static int find_free_ctxt(int unit, struct file *fp, + const struct qib_user_info *uinfo) +{ + struct qib_devdata *dd = qib_lookup(unit); + int ret; + + if (!dd || (uinfo->spu_port && uinfo->spu_port > dd->num_pports)) + ret = -ENODEV; + else + ret = choose_port_ctxt(fp, dd, uinfo->spu_port, uinfo); + + return ret; +} + +static int get_a_ctxt(struct file *fp, const struct qib_user_info *uinfo, + unsigned alg) +{ + struct qib_devdata *udd = NULL; + int ret = 0, devmax, npresent, nup, ndev, dusable = 0, i; + u32 port = uinfo->spu_port, ctxt; + + devmax = qib_count_units(&npresent, &nup); + if (!npresent) { + ret = -ENXIO; + goto done; + } + if (nup == 0) { + ret = -ENETDOWN; + goto done; + } + + if (alg == QIB_PORT_ALG_ACROSS) { + unsigned inuse = ~0U; + + /* find device (with ACTIVE ports) with fewest ctxts in use */ + for (ndev = 0; ndev < devmax; ndev++) { + struct qib_devdata *dd = qib_lookup(ndev); + unsigned cused = 0, cfree = 0, pusable = 0; + + if (!dd) + continue; + if (port && port <= dd->num_pports && + usable(dd->pport + port - 1)) + pusable = 1; + else + for (i = 0; i < dd->num_pports; i++) + if (usable(dd->pport + i)) + pusable++; + if (!pusable) + continue; + for (ctxt = dd->first_user_ctxt; ctxt < dd->cfgctxts; + ctxt++) + if (dd->rcd[ctxt]) + cused++; + else + cfree++; + if (cfree && cused < inuse) { + udd = dd; + inuse = cused; + } + } + if (udd) { + ret = choose_port_ctxt(fp, udd, port, uinfo); + goto done; + } + } else { + for (ndev = 0; ndev < devmax; ndev++) { + struct qib_devdata *dd = qib_lookup(ndev); + + if (dd) { + ret = choose_port_ctxt(fp, dd, port, uinfo); + if (!ret) + goto done; + if (ret == -EBUSY) + dusable++; + } + } + } + ret = dusable ? -EBUSY : -ENETDOWN; + +done: + return ret; +} + +static int find_shared_ctxt(struct file *fp, + const struct qib_user_info *uinfo) +{ + int devmax, ndev, i; + int ret = 0; + + devmax = qib_count_units(NULL, NULL); + + for (ndev = 0; ndev < devmax; ndev++) { + struct qib_devdata *dd = qib_lookup(ndev); + + /* device portion of usable() */ + if (!(dd && (dd->flags & QIB_PRESENT) && dd->kregbase)) + continue; + for (i = dd->first_user_ctxt; i < dd->cfgctxts; i++) { + struct qib_ctxtdata *rcd = dd->rcd[i]; + + /* Skip ctxts which are not yet open */ + if (!rcd || !rcd->cnt) + continue; + /* Skip ctxt if it doesn't match the requested one */ + if (rcd->subctxt_id != uinfo->spu_subctxt_id) + continue; + /* Verify the sharing process matches the master */ + if (rcd->subctxt_cnt != uinfo->spu_subctxt_cnt || + rcd->userversion != uinfo->spu_userversion || + rcd->cnt >= rcd->subctxt_cnt) { + ret = -EINVAL; + goto done; + } + ctxt_fp(fp) = rcd; + subctxt_fp(fp) = rcd->cnt++; + rcd->subpid[subctxt_fp(fp)] = current->pid; + tidcursor_fp(fp) = 0; + rcd->active_slaves |= 1 << subctxt_fp(fp); + ret = 1; + goto done; + } + } + +done: + return ret; +} + +static int qib_open(struct inode *in, struct file *fp) +{ + /* The real work is performed later in qib_assign_ctxt() */ + fp->private_data = kzalloc(sizeof(struct qib_filedata), GFP_KERNEL); + if (fp->private_data) /* no cpu affinity by default */ + ((struct qib_filedata *)fp->private_data)->rec_cpu_num = -1; + return fp->private_data ? 0 : -ENOMEM; +} + +static int find_hca(unsigned int cpu, int *unit) +{ + int ret = 0, devmax, npresent, nup, ndev; + + *unit = -1; + + devmax = qib_count_units(&npresent, &nup); + if (!npresent) { + ret = -ENXIO; + goto done; + } + if (!nup) { + ret = -ENETDOWN; + goto done; + } + for (ndev = 0; ndev < devmax; ndev++) { + struct qib_devdata *dd = qib_lookup(ndev); + + if (dd) { + if (pcibus_to_node(dd->pcidev->bus) < 0) { + ret = -EINVAL; + goto done; + } + if (cpu_to_node(cpu) == + pcibus_to_node(dd->pcidev->bus)) { + *unit = ndev; + goto done; + } + } + } +done: + return ret; +} + +static int do_qib_user_sdma_queue_create(struct file *fp) +{ + struct qib_filedata *fd = fp->private_data; + struct qib_ctxtdata *rcd = fd->rcd; + struct qib_devdata *dd = rcd->dd; + + if (dd->flags & QIB_HAS_SEND_DMA) { + + fd->pq = qib_user_sdma_queue_create(&dd->pcidev->dev, + dd->unit, + rcd->ctxt, + fd->subctxt); + if (!fd->pq) + return -ENOMEM; + } + + return 0; +} + +/* + * Get ctxt early, so can set affinity prior to memory allocation. + */ +static int qib_assign_ctxt(struct file *fp, const struct qib_user_info *uinfo) +{ + int ret; + int i_minor; + unsigned swmajor, swminor, alg = QIB_PORT_ALG_ACROSS; + + /* Check to be sure we haven't already initialized this file */ + if (ctxt_fp(fp)) { + ret = -EINVAL; + goto done; + } + + /* for now, if major version is different, bail */ + swmajor = uinfo->spu_userversion >> 16; + if (swmajor != QIB_USER_SWMAJOR) { + ret = -ENODEV; + goto done; + } + + swminor = uinfo->spu_userversion & 0xffff; + + if (swminor >= 11 && uinfo->spu_port_alg < QIB_PORT_ALG_COUNT) + alg = uinfo->spu_port_alg; + + mutex_lock(&qib_mutex); + + if (qib_compatible_subctxts(swmajor, swminor) && + uinfo->spu_subctxt_cnt) { + ret = find_shared_ctxt(fp, uinfo); + if (ret > 0) { + ret = do_qib_user_sdma_queue_create(fp); + if (!ret) + assign_ctxt_affinity(fp, (ctxt_fp(fp))->dd); + goto done_ok; + } + } + + i_minor = iminor(file_inode(fp)) - QIB_USER_MINOR_BASE; + if (i_minor) + ret = find_free_ctxt(i_minor - 1, fp, uinfo); + else { + int unit; + const unsigned int cpu = cpumask_first(current->cpus_ptr); + const unsigned int weight = current->nr_cpus_allowed; + + if (weight == 1 && !test_bit(cpu, qib_cpulist)) + if (!find_hca(cpu, &unit) && unit >= 0) + if (!find_free_ctxt(unit, fp, uinfo)) { + ret = 0; + goto done_chk_sdma; + } + ret = get_a_ctxt(fp, uinfo, alg); + } + +done_chk_sdma: + if (!ret) + ret = do_qib_user_sdma_queue_create(fp); +done_ok: + mutex_unlock(&qib_mutex); + +done: + return ret; +} + + +static int qib_do_user_init(struct file *fp, + const struct qib_user_info *uinfo) +{ + int ret; + struct qib_ctxtdata *rcd = ctxt_fp(fp); + struct qib_devdata *dd; + unsigned uctxt; + + /* Subctxts don't need to initialize anything since master did it. */ + if (subctxt_fp(fp)) { + ret = wait_event_interruptible(rcd->wait, + !test_bit(QIB_CTXT_MASTER_UNINIT, &rcd->flag)); + goto bail; + } + + dd = rcd->dd; + + /* some ctxts may get extra buffers, calculate that here */ + uctxt = rcd->ctxt - dd->first_user_ctxt; + if (uctxt < dd->ctxts_extrabuf) { + rcd->piocnt = dd->pbufsctxt + 1; + rcd->pio_base = rcd->piocnt * uctxt; + } else { + rcd->piocnt = dd->pbufsctxt; + rcd->pio_base = rcd->piocnt * uctxt + + dd->ctxts_extrabuf; + } + + /* + * All user buffers are 2KB buffers. If we ever support + * giving 4KB buffers to user processes, this will need some + * work. Can't use piobufbase directly, because it has + * both 2K and 4K buffer base values. So check and handle. + */ + if ((rcd->pio_base + rcd->piocnt) > dd->piobcnt2k) { + if (rcd->pio_base >= dd->piobcnt2k) { + qib_dev_err(dd, + "%u:ctxt%u: no 2KB buffers available\n", + dd->unit, rcd->ctxt); + ret = -ENOBUFS; + goto bail; + } + rcd->piocnt = dd->piobcnt2k - rcd->pio_base; + qib_dev_err(dd, "Ctxt%u: would use 4KB bufs, using %u\n", + rcd->ctxt, rcd->piocnt); + } + + rcd->piobufs = dd->pio2k_bufbase + rcd->pio_base * dd->palign; + qib_chg_pioavailkernel(dd, rcd->pio_base, rcd->piocnt, + TXCHK_CHG_TYPE_USER, rcd); + /* + * try to ensure that processes start up with consistent avail update + * for their own range, at least. If system very quiet, it might + * have the in-memory copy out of date at startup for this range of + * buffers, when a context gets re-used. Do after the chg_pioavail + * and before the rest of setup, so it's "almost certain" the dma + * will have occurred (can't 100% guarantee, but should be many + * decimals of 9s, with this ordering), given how much else happens + * after this. + */ + dd->f_sendctrl(dd->pport, QIB_SENDCTRL_AVAIL_BLIP); + + /* + * Now allocate the rcvhdr Q and eager TIDs; skip the TID + * array for time being. If rcd->ctxt > chip-supported, + * we need to do extra stuff here to handle by handling overflow + * through ctxt 0, someday + */ + ret = qib_create_rcvhdrq(dd, rcd); + if (!ret) + ret = qib_setup_eagerbufs(rcd); + if (ret) + goto bail_pio; + + rcd->tidcursor = 0; /* start at beginning after open */ + + /* initialize poll variables... */ + rcd->urgent = 0; + rcd->urgent_poll = 0; + + /* + * Now enable the ctxt for receive. + * For chips that are set to DMA the tail register to memory + * when they change (and when the update bit transitions from + * 0 to 1. So for those chips, we turn it off and then back on. + * This will (very briefly) affect any other open ctxts, but the + * duration is very short, and therefore isn't an issue. We + * explicitly set the in-memory tail copy to 0 beforehand, so we + * don't have to wait to be sure the DMA update has happened + * (chip resets head/tail to 0 on transition to enable). + */ + if (rcd->rcvhdrtail_kvaddr) + qib_clear_rcvhdrtail(rcd); + + dd->f_rcvctrl(rcd->ppd, QIB_RCVCTRL_CTXT_ENB | QIB_RCVCTRL_TIDFLOW_ENB, + rcd->ctxt); + + /* Notify any waiting slaves */ + if (rcd->subctxt_cnt) { + clear_bit(QIB_CTXT_MASTER_UNINIT, &rcd->flag); + wake_up(&rcd->wait); + } + return 0; + +bail_pio: + qib_chg_pioavailkernel(dd, rcd->pio_base, rcd->piocnt, + TXCHK_CHG_TYPE_KERN, rcd); +bail: + return ret; +} + +/** + * unlock_expected_tids - unlock any expected TID entries context still had + * in use + * @rcd: ctxt + * + * We don't actually update the chip here, because we do a bulk update + * below, using f_clear_tids. + */ +static void unlock_expected_tids(struct qib_ctxtdata *rcd) +{ + struct qib_devdata *dd = rcd->dd; + int ctxt_tidbase = rcd->ctxt * dd->rcvtidcnt; + int i, cnt = 0, maxtid = ctxt_tidbase + dd->rcvtidcnt; + + for (i = ctxt_tidbase; i < maxtid; i++) { + struct page *p = dd->pageshadow[i]; + dma_addr_t phys; + + if (!p) + continue; + + phys = dd->physshadow[i]; + dd->physshadow[i] = dd->tidinvalid; + dd->pageshadow[i] = NULL; + dma_unmap_page(&dd->pcidev->dev, phys, PAGE_SIZE, + DMA_FROM_DEVICE); + qib_release_user_pages(&p, 1); + cnt++; + } +} + +static int qib_close(struct inode *in, struct file *fp) +{ + struct qib_filedata *fd; + struct qib_ctxtdata *rcd; + struct qib_devdata *dd; + unsigned long flags; + unsigned ctxt; + + mutex_lock(&qib_mutex); + + fd = fp->private_data; + fp->private_data = NULL; + rcd = fd->rcd; + if (!rcd) { + mutex_unlock(&qib_mutex); + goto bail; + } + + dd = rcd->dd; + + /* ensure all pio buffer writes in progress are flushed */ + qib_flush_wc(); + + /* drain user sdma queue */ + if (fd->pq) { + qib_user_sdma_queue_drain(rcd->ppd, fd->pq); + qib_user_sdma_queue_destroy(fd->pq); + } + + if (fd->rec_cpu_num != -1) + __clear_bit(fd->rec_cpu_num, qib_cpulist); + + if (--rcd->cnt) { + /* + * XXX If the master closes the context before the slave(s), + * revoke the mmap for the eager receive queue so + * the slave(s) don't wait for receive data forever. + */ + rcd->active_slaves &= ~(1 << fd->subctxt); + rcd->subpid[fd->subctxt] = 0; + mutex_unlock(&qib_mutex); + goto bail; + } + + /* early; no interrupt users after this */ + spin_lock_irqsave(&dd->uctxt_lock, flags); + ctxt = rcd->ctxt; + dd->rcd[ctxt] = NULL; + rcd->pid = 0; + spin_unlock_irqrestore(&dd->uctxt_lock, flags); + + if (rcd->rcvwait_to || rcd->piowait_to || + rcd->rcvnowait || rcd->pionowait) { + rcd->rcvwait_to = 0; + rcd->piowait_to = 0; + rcd->rcvnowait = 0; + rcd->pionowait = 0; + } + if (rcd->flag) + rcd->flag = 0; + + if (dd->kregbase) { + /* atomically clear receive enable ctxt and intr avail. */ + dd->f_rcvctrl(rcd->ppd, QIB_RCVCTRL_CTXT_DIS | + QIB_RCVCTRL_INTRAVAIL_DIS, ctxt); + + /* clean up the pkeys for this ctxt user */ + qib_clean_part_key(rcd, dd); + qib_disarm_piobufs(dd, rcd->pio_base, rcd->piocnt); + qib_chg_pioavailkernel(dd, rcd->pio_base, + rcd->piocnt, TXCHK_CHG_TYPE_KERN, NULL); + + dd->f_clear_tids(dd, rcd); + + if (dd->pageshadow) + unlock_expected_tids(rcd); + qib_stats.sps_ctxts--; + dd->freectxts++; + } + + mutex_unlock(&qib_mutex); + qib_free_ctxtdata(dd, rcd); /* after releasing the mutex */ + +bail: + kfree(fd); + return 0; +} + +static int qib_ctxt_info(struct file *fp, struct qib_ctxt_info __user *uinfo) +{ + struct qib_ctxt_info info; + int ret; + size_t sz; + struct qib_ctxtdata *rcd = ctxt_fp(fp); + struct qib_filedata *fd; + + fd = fp->private_data; + + info.num_active = qib_count_active_units(); + info.unit = rcd->dd->unit; + info.port = rcd->ppd->port; + info.ctxt = rcd->ctxt; + info.subctxt = subctxt_fp(fp); + /* Number of user ctxts available for this device. */ + info.num_ctxts = rcd->dd->cfgctxts - rcd->dd->first_user_ctxt; + info.num_subctxts = rcd->subctxt_cnt; + info.rec_cpu = fd->rec_cpu_num; + sz = sizeof(info); + + if (copy_to_user(uinfo, &info, sz)) { + ret = -EFAULT; + goto bail; + } + ret = 0; + +bail: + return ret; +} + +static int qib_sdma_get_inflight(struct qib_user_sdma_queue *pq, + u32 __user *inflightp) +{ + const u32 val = qib_user_sdma_inflight_counter(pq); + + if (put_user(val, inflightp)) + return -EFAULT; + + return 0; +} + +static int qib_sdma_get_complete(struct qib_pportdata *ppd, + struct qib_user_sdma_queue *pq, + u32 __user *completep) +{ + u32 val; + int err; + + if (!pq) + return -EINVAL; + + err = qib_user_sdma_make_progress(ppd, pq); + if (err < 0) + return err; + + val = qib_user_sdma_complete_counter(pq); + if (put_user(val, completep)) + return -EFAULT; + + return 0; +} + +static int disarm_req_delay(struct qib_ctxtdata *rcd) +{ + int ret = 0; + + if (!usable(rcd->ppd)) { + int i; + /* + * if link is down, or otherwise not usable, delay + * the caller up to 30 seconds, so we don't thrash + * in trying to get the chip back to ACTIVE, and + * set flag so they make the call again. + */ + if (rcd->user_event_mask) { + /* + * subctxt_cnt is 0 if not shared, so do base + * separately, first, then remaining subctxt, if any + */ + set_bit(_QIB_EVENT_DISARM_BUFS_BIT, + &rcd->user_event_mask[0]); + for (i = 1; i < rcd->subctxt_cnt; i++) + set_bit(_QIB_EVENT_DISARM_BUFS_BIT, + &rcd->user_event_mask[i]); + } + for (i = 0; !usable(rcd->ppd) && i < 300; i++) + msleep(100); + ret = -ENETDOWN; + } + return ret; +} + +/* + * Find all user contexts in use, and set the specified bit in their + * event mask. + * See also find_ctxt() for a similar use, that is specific to send buffers. + */ +int qib_set_uevent_bits(struct qib_pportdata *ppd, const int evtbit) +{ + struct qib_ctxtdata *rcd; + unsigned ctxt; + int ret = 0; + unsigned long flags; + + spin_lock_irqsave(&ppd->dd->uctxt_lock, flags); + for (ctxt = ppd->dd->first_user_ctxt; ctxt < ppd->dd->cfgctxts; + ctxt++) { + rcd = ppd->dd->rcd[ctxt]; + if (!rcd) + continue; + if (rcd->user_event_mask) { + int i; + /* + * subctxt_cnt is 0 if not shared, so do base + * separately, first, then remaining subctxt, if any + */ + set_bit(evtbit, &rcd->user_event_mask[0]); + for (i = 1; i < rcd->subctxt_cnt; i++) + set_bit(evtbit, &rcd->user_event_mask[i]); + } + ret = 1; + break; + } + spin_unlock_irqrestore(&ppd->dd->uctxt_lock, flags); + + return ret; +} + +/* + * clear the event notifier events for this context. + * For the DISARM_BUFS case, we also take action (this obsoletes + * the older QIB_CMD_DISARM_BUFS, but we keep it for backwards + * compatibility. + * Other bits don't currently require actions, just atomically clear. + * User process then performs actions appropriate to bit having been + * set, if desired, and checks again in future. + */ +static int qib_user_event_ack(struct qib_ctxtdata *rcd, int subctxt, + unsigned long events) +{ + int ret = 0, i; + + for (i = 0; i <= _QIB_MAX_EVENT_BIT; i++) { + if (!test_bit(i, &events)) + continue; + if (i == _QIB_EVENT_DISARM_BUFS_BIT) { + (void)qib_disarm_piobufs_ifneeded(rcd); + ret = disarm_req_delay(rcd); + } else + clear_bit(i, &rcd->user_event_mask[subctxt]); + } + return ret; +} + +static ssize_t qib_write(struct file *fp, const char __user *data, + size_t count, loff_t *off) +{ + const struct qib_cmd __user *ucmd; + struct qib_ctxtdata *rcd; + const void __user *src; + size_t consumed, copy = 0; + struct qib_cmd cmd; + ssize_t ret = 0; + void *dest; + + if (!ib_safe_file_access(fp)) { + pr_err_once("qib_write: process %d (%s) changed security contexts after opening file descriptor, this is not allowed.\n", + task_tgid_vnr(current), current->comm); + return -EACCES; + } + + if (count < sizeof(cmd.type)) { + ret = -EINVAL; + goto bail; + } + + ucmd = (const struct qib_cmd __user *) data; + + if (copy_from_user(&cmd.type, &ucmd->type, sizeof(cmd.type))) { + ret = -EFAULT; + goto bail; + } + + consumed = sizeof(cmd.type); + + switch (cmd.type) { + case QIB_CMD_ASSIGN_CTXT: + case QIB_CMD_USER_INIT: + copy = sizeof(cmd.cmd.user_info); + dest = &cmd.cmd.user_info; + src = &ucmd->cmd.user_info; + break; + + case QIB_CMD_RECV_CTRL: + copy = sizeof(cmd.cmd.recv_ctrl); + dest = &cmd.cmd.recv_ctrl; + src = &ucmd->cmd.recv_ctrl; + break; + + case QIB_CMD_CTXT_INFO: + copy = sizeof(cmd.cmd.ctxt_info); + dest = &cmd.cmd.ctxt_info; + src = &ucmd->cmd.ctxt_info; + break; + + case QIB_CMD_TID_UPDATE: + case QIB_CMD_TID_FREE: + copy = sizeof(cmd.cmd.tid_info); + dest = &cmd.cmd.tid_info; + src = &ucmd->cmd.tid_info; + break; + + case QIB_CMD_SET_PART_KEY: + copy = sizeof(cmd.cmd.part_key); + dest = &cmd.cmd.part_key; + src = &ucmd->cmd.part_key; + break; + + case QIB_CMD_DISARM_BUFS: + case QIB_CMD_PIOAVAILUPD: /* force an update of PIOAvail reg */ + copy = 0; + src = NULL; + dest = NULL; + break; + + case QIB_CMD_POLL_TYPE: + copy = sizeof(cmd.cmd.poll_type); + dest = &cmd.cmd.poll_type; + src = &ucmd->cmd.poll_type; + break; + + case QIB_CMD_ARMLAUNCH_CTRL: + copy = sizeof(cmd.cmd.armlaunch_ctrl); + dest = &cmd.cmd.armlaunch_ctrl; + src = &ucmd->cmd.armlaunch_ctrl; + break; + + case QIB_CMD_SDMA_INFLIGHT: + copy = sizeof(cmd.cmd.sdma_inflight); + dest = &cmd.cmd.sdma_inflight; + src = &ucmd->cmd.sdma_inflight; + break; + + case QIB_CMD_SDMA_COMPLETE: + copy = sizeof(cmd.cmd.sdma_complete); + dest = &cmd.cmd.sdma_complete; + src = &ucmd->cmd.sdma_complete; + break; + + case QIB_CMD_ACK_EVENT: + copy = sizeof(cmd.cmd.event_mask); + dest = &cmd.cmd.event_mask; + src = &ucmd->cmd.event_mask; + break; + + default: + ret = -EINVAL; + goto bail; + } + + if (copy) { + if ((count - consumed) < copy) { + ret = -EINVAL; + goto bail; + } + if (copy_from_user(dest, src, copy)) { + ret = -EFAULT; + goto bail; + } + consumed += copy; + } + + rcd = ctxt_fp(fp); + if (!rcd && cmd.type != QIB_CMD_ASSIGN_CTXT) { + ret = -EINVAL; + goto bail; + } + + switch (cmd.type) { + case QIB_CMD_ASSIGN_CTXT: + if (rcd) { + ret = -EINVAL; + goto bail; + } + + ret = qib_assign_ctxt(fp, &cmd.cmd.user_info); + if (ret) + goto bail; + break; + + case QIB_CMD_USER_INIT: + ret = qib_do_user_init(fp, &cmd.cmd.user_info); + if (ret) + goto bail; + ret = qib_get_base_info(fp, u64_to_user_ptr( + cmd.cmd.user_info.spu_base_info), + cmd.cmd.user_info.spu_base_info_size); + break; + + case QIB_CMD_RECV_CTRL: + ret = qib_manage_rcvq(rcd, subctxt_fp(fp), cmd.cmd.recv_ctrl); + break; + + case QIB_CMD_CTXT_INFO: + ret = qib_ctxt_info(fp, (struct qib_ctxt_info __user *) + (unsigned long) cmd.cmd.ctxt_info); + break; + + case QIB_CMD_TID_UPDATE: + ret = qib_tid_update(rcd, fp, &cmd.cmd.tid_info); + break; + + case QIB_CMD_TID_FREE: + ret = qib_tid_free(rcd, subctxt_fp(fp), &cmd.cmd.tid_info); + break; + + case QIB_CMD_SET_PART_KEY: + ret = qib_set_part_key(rcd, cmd.cmd.part_key); + break; + + case QIB_CMD_DISARM_BUFS: + (void)qib_disarm_piobufs_ifneeded(rcd); + ret = disarm_req_delay(rcd); + break; + + case QIB_CMD_PIOAVAILUPD: + qib_force_pio_avail_update(rcd->dd); + break; + + case QIB_CMD_POLL_TYPE: + rcd->poll_type = cmd.cmd.poll_type; + break; + + case QIB_CMD_ARMLAUNCH_CTRL: + rcd->dd->f_set_armlaunch(rcd->dd, cmd.cmd.armlaunch_ctrl); + break; + + case QIB_CMD_SDMA_INFLIGHT: + ret = qib_sdma_get_inflight(user_sdma_queue_fp(fp), + (u32 __user *) (unsigned long) + cmd.cmd.sdma_inflight); + break; + + case QIB_CMD_SDMA_COMPLETE: + ret = qib_sdma_get_complete(rcd->ppd, + user_sdma_queue_fp(fp), + (u32 __user *) (unsigned long) + cmd.cmd.sdma_complete); + break; + + case QIB_CMD_ACK_EVENT: + ret = qib_user_event_ack(rcd, subctxt_fp(fp), + cmd.cmd.event_mask); + break; + } + + if (ret >= 0) + ret = consumed; + +bail: + return ret; +} + +static ssize_t qib_write_iter(struct kiocb *iocb, struct iov_iter *from) +{ + struct qib_filedata *fp = iocb->ki_filp->private_data; + struct qib_ctxtdata *rcd = ctxt_fp(iocb->ki_filp); + struct qib_user_sdma_queue *pq = fp->pq; + + if (!iter_is_iovec(from) || !from->nr_segs || !pq) + return -EINVAL; + + return qib_user_sdma_writev(rcd, pq, from->iov, from->nr_segs); +} + +static struct class *qib_class; +static dev_t qib_dev; + +int qib_cdev_init(int minor, const char *name, + const struct file_operations *fops, + struct cdev **cdevp, struct device **devp) +{ + const dev_t dev = MKDEV(MAJOR(qib_dev), minor); + struct cdev *cdev; + struct device *device = NULL; + int ret; + + cdev = cdev_alloc(); + if (!cdev) { + pr_err("Could not allocate cdev for minor %d, %s\n", + minor, name); + ret = -ENOMEM; + goto done; + } + + cdev->owner = THIS_MODULE; + cdev->ops = fops; + kobject_set_name(&cdev->kobj, name); + + ret = cdev_add(cdev, dev, 1); + if (ret < 0) { + pr_err("Could not add cdev for minor %d, %s (err %d)\n", + minor, name, -ret); + goto err_cdev; + } + + device = device_create(qib_class, NULL, dev, NULL, "%s", name); + if (!IS_ERR(device)) + goto done; + ret = PTR_ERR(device); + device = NULL; + pr_err("Could not create device for minor %d, %s (err %d)\n", + minor, name, -ret); +err_cdev: + cdev_del(cdev); + cdev = NULL; +done: + *cdevp = cdev; + *devp = device; + return ret; +} + +void qib_cdev_cleanup(struct cdev **cdevp, struct device **devp) +{ + struct device *device = *devp; + + if (device) { + device_unregister(device); + *devp = NULL; + } + + if (*cdevp) { + cdev_del(*cdevp); + *cdevp = NULL; + } +} + +static struct cdev *wildcard_cdev; +static struct device *wildcard_device; + +int __init qib_dev_init(void) +{ + int ret; + + ret = alloc_chrdev_region(&qib_dev, 0, QIB_NMINORS, QIB_DRV_NAME); + if (ret < 0) { + pr_err("Could not allocate chrdev region (err %d)\n", -ret); + goto done; + } + + qib_class = class_create(THIS_MODULE, "ipath"); + if (IS_ERR(qib_class)) { + ret = PTR_ERR(qib_class); + pr_err("Could not create device class (err %d)\n", -ret); + unregister_chrdev_region(qib_dev, QIB_NMINORS); + } + +done: + return ret; +} + +void qib_dev_cleanup(void) +{ + if (qib_class) { + class_destroy(qib_class); + qib_class = NULL; + } + + unregister_chrdev_region(qib_dev, QIB_NMINORS); +} + +static atomic_t user_count = ATOMIC_INIT(0); + +static void qib_user_remove(struct qib_devdata *dd) +{ + if (atomic_dec_return(&user_count) == 0) + qib_cdev_cleanup(&wildcard_cdev, &wildcard_device); + + qib_cdev_cleanup(&dd->user_cdev, &dd->user_device); +} + +static int qib_user_add(struct qib_devdata *dd) +{ + char name[10]; + int ret; + + if (atomic_inc_return(&user_count) == 1) { + ret = qib_cdev_init(0, "ipath", &qib_file_ops, + &wildcard_cdev, &wildcard_device); + if (ret) + goto done; + } + + snprintf(name, sizeof(name), "ipath%d", dd->unit); + ret = qib_cdev_init(dd->unit + 1, name, &qib_file_ops, + &dd->user_cdev, &dd->user_device); + if (ret) + qib_user_remove(dd); +done: + return ret; +} + +/* + * Create per-unit files in /dev + */ +int qib_device_create(struct qib_devdata *dd) +{ + int r, ret; + + r = qib_user_add(dd); + ret = qib_diag_add(dd); + if (r && !ret) + ret = r; + return ret; +} + +/* + * Remove per-unit files in /dev + * void, core kernel returns no errors for this stuff + */ +void qib_device_remove(struct qib_devdata *dd) +{ + qib_user_remove(dd); + qib_diag_remove(dd); +} diff --git a/drivers/infiniband/hw/qib/qib_fs.c b/drivers/infiniband/hw/qib/qib_fs.c new file mode 100644 index 000000000..a973905af --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_fs.c @@ -0,0 +1,548 @@ +/* + * Copyright (c) 2012 Intel Corporation. All rights reserved. + * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. + * Copyright (c) 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/fs.h> +#include <linux/fs_context.h> +#include <linux/mount.h> +#include <linux/pagemap.h> +#include <linux/init.h> +#include <linux/namei.h> + +#include "qib.h" + +#define QIBFS_MAGIC 0x726a77 + +static struct super_block *qib_super; + +#define private2dd(file) (file_inode(file)->i_private) + +static int qibfs_mknod(struct inode *dir, struct dentry *dentry, + umode_t mode, const struct file_operations *fops, + void *data) +{ + int error; + struct inode *inode = new_inode(dir->i_sb); + + if (!inode) { + error = -EPERM; + goto bail; + } + + inode->i_ino = get_next_ino(); + inode->i_mode = mode; + inode->i_uid = GLOBAL_ROOT_UID; + inode->i_gid = GLOBAL_ROOT_GID; + inode->i_blocks = 0; + inode->i_atime = current_time(inode); + inode->i_mtime = inode->i_atime; + inode->i_ctime = inode->i_atime; + inode->i_private = data; + if (S_ISDIR(mode)) { + inode->i_op = &simple_dir_inode_operations; + inc_nlink(inode); + inc_nlink(dir); + } + + inode->i_fop = fops; + + d_instantiate(dentry, inode); + error = 0; + +bail: + return error; +} + +static int create_file(const char *name, umode_t mode, + struct dentry *parent, struct dentry **dentry, + const struct file_operations *fops, void *data) +{ + int error; + + inode_lock(d_inode(parent)); + *dentry = lookup_one_len(name, parent, strlen(name)); + if (!IS_ERR(*dentry)) + error = qibfs_mknod(d_inode(parent), *dentry, + mode, fops, data); + else + error = PTR_ERR(*dentry); + inode_unlock(d_inode(parent)); + + return error; +} + +static ssize_t driver_stats_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + qib_stats.sps_ints = qib_sps_ints(); + return simple_read_from_buffer(buf, count, ppos, &qib_stats, + sizeof(qib_stats)); +} + +/* + * driver stats field names, one line per stat, single string. Used by + * programs like ipathstats to print the stats in a way which works for + * different versions of drivers, without changing program source. + * if qlogic_ib_stats changes, this needs to change. Names need to be + * 12 chars or less (w/o newline), for proper display by ipathstats utility. + */ +static const char qib_statnames[] = + "KernIntr\n" + "ErrorIntr\n" + "Tx_Errs\n" + "Rcv_Errs\n" + "H/W_Errs\n" + "NoPIOBufs\n" + "CtxtsOpen\n" + "RcvLen_Errs\n" + "EgrBufFull\n" + "EgrHdrFull\n" + ; + +static ssize_t driver_names_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + return simple_read_from_buffer(buf, count, ppos, qib_statnames, + sizeof(qib_statnames) - 1); /* no null */ +} + +static const struct file_operations driver_ops[] = { + { .read = driver_stats_read, .llseek = generic_file_llseek, }, + { .read = driver_names_read, .llseek = generic_file_llseek, }, +}; + +/* read the per-device counters */ +static ssize_t dev_counters_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + u64 *counters; + size_t avail; + struct qib_devdata *dd = private2dd(file); + + avail = dd->f_read_cntrs(dd, *ppos, NULL, &counters); + return simple_read_from_buffer(buf, count, ppos, counters, avail); +} + +/* read the per-device counters */ +static ssize_t dev_names_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + char *names; + size_t avail; + struct qib_devdata *dd = private2dd(file); + + avail = dd->f_read_cntrs(dd, *ppos, &names, NULL); + return simple_read_from_buffer(buf, count, ppos, names, avail); +} + +static const struct file_operations cntr_ops[] = { + { .read = dev_counters_read, .llseek = generic_file_llseek, }, + { .read = dev_names_read, .llseek = generic_file_llseek, }, +}; + +/* + * Could use file_inode(file)->i_ino to figure out which file, + * instead of separate routine for each, but for now, this works... + */ + +/* read the per-port names (same for each port) */ +static ssize_t portnames_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + char *names; + size_t avail; + struct qib_devdata *dd = private2dd(file); + + avail = dd->f_read_portcntrs(dd, *ppos, 0, &names, NULL); + return simple_read_from_buffer(buf, count, ppos, names, avail); +} + +/* read the per-port counters for port 1 (pidx 0) */ +static ssize_t portcntrs_1_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + u64 *counters; + size_t avail; + struct qib_devdata *dd = private2dd(file); + + avail = dd->f_read_portcntrs(dd, *ppos, 0, NULL, &counters); + return simple_read_from_buffer(buf, count, ppos, counters, avail); +} + +/* read the per-port counters for port 2 (pidx 1) */ +static ssize_t portcntrs_2_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + u64 *counters; + size_t avail; + struct qib_devdata *dd = private2dd(file); + + avail = dd->f_read_portcntrs(dd, *ppos, 1, NULL, &counters); + return simple_read_from_buffer(buf, count, ppos, counters, avail); +} + +static const struct file_operations portcntr_ops[] = { + { .read = portnames_read, .llseek = generic_file_llseek, }, + { .read = portcntrs_1_read, .llseek = generic_file_llseek, }, + { .read = portcntrs_2_read, .llseek = generic_file_llseek, }, +}; + +/* + * read the per-port QSFP data for port 1 (pidx 0) + */ +static ssize_t qsfp_1_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + struct qib_devdata *dd = private2dd(file); + char *tmp; + int ret; + + tmp = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (!tmp) + return -ENOMEM; + + ret = qib_qsfp_dump(dd->pport, tmp, PAGE_SIZE); + if (ret > 0) + ret = simple_read_from_buffer(buf, count, ppos, tmp, ret); + kfree(tmp); + return ret; +} + +/* + * read the per-port QSFP data for port 2 (pidx 1) + */ +static ssize_t qsfp_2_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + struct qib_devdata *dd = private2dd(file); + char *tmp; + int ret; + + if (dd->num_pports < 2) + return -ENODEV; + + tmp = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (!tmp) + return -ENOMEM; + + ret = qib_qsfp_dump(dd->pport + 1, tmp, PAGE_SIZE); + if (ret > 0) + ret = simple_read_from_buffer(buf, count, ppos, tmp, ret); + kfree(tmp); + return ret; +} + +static const struct file_operations qsfp_ops[] = { + { .read = qsfp_1_read, .llseek = generic_file_llseek, }, + { .read = qsfp_2_read, .llseek = generic_file_llseek, }, +}; + +static ssize_t flash_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + struct qib_devdata *dd; + ssize_t ret; + loff_t pos; + char *tmp; + + pos = *ppos; + + if (pos < 0) { + ret = -EINVAL; + goto bail; + } + + if (pos >= sizeof(struct qib_flash)) { + ret = 0; + goto bail; + } + + if (count > sizeof(struct qib_flash) - pos) + count = sizeof(struct qib_flash) - pos; + + tmp = kmalloc(count, GFP_KERNEL); + if (!tmp) { + ret = -ENOMEM; + goto bail; + } + + dd = private2dd(file); + if (qib_eeprom_read(dd, pos, tmp, count)) { + qib_dev_err(dd, "failed to read from flash\n"); + ret = -ENXIO; + goto bail_tmp; + } + + if (copy_to_user(buf, tmp, count)) { + ret = -EFAULT; + goto bail_tmp; + } + + *ppos = pos + count; + ret = count; + +bail_tmp: + kfree(tmp); + +bail: + return ret; +} + +static ssize_t flash_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) +{ + struct qib_devdata *dd; + ssize_t ret; + loff_t pos; + char *tmp; + + pos = *ppos; + + if (pos != 0 || count != sizeof(struct qib_flash)) + return -EINVAL; + + tmp = memdup_user(buf, count); + if (IS_ERR(tmp)) + return PTR_ERR(tmp); + + dd = private2dd(file); + if (qib_eeprom_write(dd, pos, tmp, count)) { + ret = -ENXIO; + qib_dev_err(dd, "failed to write to flash\n"); + goto bail_tmp; + } + + *ppos = pos + count; + ret = count; + +bail_tmp: + kfree(tmp); + return ret; +} + +static const struct file_operations flash_ops = { + .read = flash_read, + .write = flash_write, + .llseek = default_llseek, +}; + +static int add_cntr_files(struct super_block *sb, struct qib_devdata *dd) +{ + struct dentry *dir, *tmp; + char unit[10]; + int ret, i; + + /* create the per-unit directory */ + snprintf(unit, sizeof(unit), "%u", dd->unit); + ret = create_file(unit, S_IFDIR|S_IRUGO|S_IXUGO, sb->s_root, &dir, + &simple_dir_operations, dd); + if (ret) { + pr_err("create_file(%s) failed: %d\n", unit, ret); + goto bail; + } + + /* create the files in the new directory */ + ret = create_file("counters", S_IFREG|S_IRUGO, dir, &tmp, + &cntr_ops[0], dd); + if (ret) { + pr_err("create_file(%s/counters) failed: %d\n", + unit, ret); + goto bail; + } + ret = create_file("counter_names", S_IFREG|S_IRUGO, dir, &tmp, + &cntr_ops[1], dd); + if (ret) { + pr_err("create_file(%s/counter_names) failed: %d\n", + unit, ret); + goto bail; + } + ret = create_file("portcounter_names", S_IFREG|S_IRUGO, dir, &tmp, + &portcntr_ops[0], dd); + if (ret) { + pr_err("create_file(%s/%s) failed: %d\n", + unit, "portcounter_names", ret); + goto bail; + } + for (i = 1; i <= dd->num_pports; i++) { + char fname[24]; + + sprintf(fname, "port%dcounters", i); + /* create the files in the new directory */ + ret = create_file(fname, S_IFREG|S_IRUGO, dir, &tmp, + &portcntr_ops[i], dd); + if (ret) { + pr_err("create_file(%s/%s) failed: %d\n", + unit, fname, ret); + goto bail; + } + if (!(dd->flags & QIB_HAS_QSFP)) + continue; + sprintf(fname, "qsfp%d", i); + ret = create_file(fname, S_IFREG|S_IRUGO, dir, &tmp, + &qsfp_ops[i - 1], dd); + if (ret) { + pr_err("create_file(%s/%s) failed: %d\n", + unit, fname, ret); + goto bail; + } + } + + ret = create_file("flash", S_IFREG|S_IWUSR|S_IRUGO, dir, &tmp, + &flash_ops, dd); + if (ret) + pr_err("create_file(%s/flash) failed: %d\n", + unit, ret); +bail: + return ret; +} + +static int remove_device_files(struct super_block *sb, + struct qib_devdata *dd) +{ + struct dentry *dir; + char unit[10]; + + snprintf(unit, sizeof(unit), "%u", dd->unit); + dir = lookup_one_len_unlocked(unit, sb->s_root, strlen(unit)); + + if (IS_ERR(dir)) { + pr_err("Lookup of %s failed\n", unit); + return PTR_ERR(dir); + } + simple_recursive_removal(dir, NULL); + return 0; +} + +/* + * This fills everything in when the fs is mounted, to handle umount/mount + * after device init. The direct add_cntr_files() call handles adding + * them from the init code, when the fs is already mounted. + */ +static int qibfs_fill_super(struct super_block *sb, struct fs_context *fc) +{ + struct qib_devdata *dd; + unsigned long index; + int ret; + + static const struct tree_descr files[] = { + [2] = {"driver_stats", &driver_ops[0], S_IRUGO}, + [3] = {"driver_stats_names", &driver_ops[1], S_IRUGO}, + {""}, + }; + + ret = simple_fill_super(sb, QIBFS_MAGIC, files); + if (ret) { + pr_err("simple_fill_super failed: %d\n", ret); + goto bail; + } + + xa_for_each(&qib_dev_table, index, dd) { + ret = add_cntr_files(sb, dd); + if (ret) + goto bail; + } + +bail: + return ret; +} + +static int qibfs_get_tree(struct fs_context *fc) +{ + int ret = get_tree_single(fc, qibfs_fill_super); + if (ret == 0) + qib_super = fc->root->d_sb; + return ret; +} + +static const struct fs_context_operations qibfs_context_ops = { + .get_tree = qibfs_get_tree, +}; + +static int qibfs_init_fs_context(struct fs_context *fc) +{ + fc->ops = &qibfs_context_ops; + return 0; +} + +static void qibfs_kill_super(struct super_block *s) +{ + kill_litter_super(s); + qib_super = NULL; +} + +int qibfs_add(struct qib_devdata *dd) +{ + int ret; + + /* + * On first unit initialized, qib_super will not yet exist + * because nobody has yet tried to mount the filesystem, so + * we can't consider that to be an error; if an error occurs + * during the mount, that will get a complaint, so this is OK. + * add_cntr_files() for all units is done at mount from + * qibfs_fill_super(), so one way or another, everything works. + */ + if (qib_super == NULL) + ret = 0; + else + ret = add_cntr_files(qib_super, dd); + return ret; +} + +int qibfs_remove(struct qib_devdata *dd) +{ + int ret = 0; + + if (qib_super) + ret = remove_device_files(qib_super, dd); + + return ret; +} + +static struct file_system_type qibfs_fs_type = { + .owner = THIS_MODULE, + .name = "ipathfs", + .init_fs_context = qibfs_init_fs_context, + .kill_sb = qibfs_kill_super, +}; +MODULE_ALIAS_FS("ipathfs"); + +int __init qib_init_qibfs(void) +{ + return register_filesystem(&qibfs_fs_type); +} + +int __exit qib_exit_qibfs(void) +{ + return unregister_filesystem(&qibfs_fs_type); +} diff --git a/drivers/infiniband/hw/qib/qib_iba6120.c b/drivers/infiniband/hw/qib/qib_iba6120.c new file mode 100644 index 000000000..aea571943 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_iba6120.c @@ -0,0 +1,3536 @@ +/* + * Copyright (c) 2013 - 2017 Intel Corporation. All rights reserved. + * Copyright (c) 2006, 2007, 2008, 2009, 2010 QLogic Corporation. + * All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +/* + * This file contains all of the code that is specific to the + * QLogic_IB 6120 PCIe chip. + */ + +#include <linux/interrupt.h> +#include <linux/pci.h> +#include <linux/delay.h> +#include <rdma/ib_verbs.h> + +#include "qib.h" +#include "qib_6120_regs.h" + +static void qib_6120_setup_setextled(struct qib_pportdata *, u32); +static void sendctrl_6120_mod(struct qib_pportdata *ppd, u32 op); +static u8 qib_6120_phys_portstate(u64); +static u32 qib_6120_iblink_state(u64); + +/* + * This file contains all the chip-specific register information and + * access functions for the Intel Intel_IB PCI-Express chip. + * + */ + +/* KREG_IDX uses machine-generated #defines */ +#define KREG_IDX(regname) (QIB_6120_##regname##_OFFS / sizeof(u64)) + +/* Use defines to tie machine-generated names to lower-case names */ +#define kr_extctrl KREG_IDX(EXTCtrl) +#define kr_extstatus KREG_IDX(EXTStatus) +#define kr_gpio_clear KREG_IDX(GPIOClear) +#define kr_gpio_mask KREG_IDX(GPIOMask) +#define kr_gpio_out KREG_IDX(GPIOOut) +#define kr_gpio_status KREG_IDX(GPIOStatus) +#define kr_rcvctrl KREG_IDX(RcvCtrl) +#define kr_sendctrl KREG_IDX(SendCtrl) +#define kr_partitionkey KREG_IDX(RcvPartitionKey) +#define kr_hwdiagctrl KREG_IDX(HwDiagCtrl) +#define kr_ibcstatus KREG_IDX(IBCStatus) +#define kr_ibcctrl KREG_IDX(IBCCtrl) +#define kr_sendbuffererror KREG_IDX(SendBufErr0) +#define kr_rcvbthqp KREG_IDX(RcvBTHQP) +#define kr_counterregbase KREG_IDX(CntrRegBase) +#define kr_palign KREG_IDX(PageAlign) +#define kr_rcvegrbase KREG_IDX(RcvEgrBase) +#define kr_rcvegrcnt KREG_IDX(RcvEgrCnt) +#define kr_rcvhdrcnt KREG_IDX(RcvHdrCnt) +#define kr_rcvhdrentsize KREG_IDX(RcvHdrEntSize) +#define kr_rcvhdrsize KREG_IDX(RcvHdrSize) +#define kr_rcvtidbase KREG_IDX(RcvTIDBase) +#define kr_rcvtidcnt KREG_IDX(RcvTIDCnt) +#define kr_scratch KREG_IDX(Scratch) +#define kr_sendctrl KREG_IDX(SendCtrl) +#define kr_sendpioavailaddr KREG_IDX(SendPIOAvailAddr) +#define kr_sendpiobufbase KREG_IDX(SendPIOBufBase) +#define kr_sendpiobufcnt KREG_IDX(SendPIOBufCnt) +#define kr_sendpiosize KREG_IDX(SendPIOSize) +#define kr_sendregbase KREG_IDX(SendRegBase) +#define kr_userregbase KREG_IDX(UserRegBase) +#define kr_control KREG_IDX(Control) +#define kr_intclear KREG_IDX(IntClear) +#define kr_intmask KREG_IDX(IntMask) +#define kr_intstatus KREG_IDX(IntStatus) +#define kr_errclear KREG_IDX(ErrClear) +#define kr_errmask KREG_IDX(ErrMask) +#define kr_errstatus KREG_IDX(ErrStatus) +#define kr_hwerrclear KREG_IDX(HwErrClear) +#define kr_hwerrmask KREG_IDX(HwErrMask) +#define kr_hwerrstatus KREG_IDX(HwErrStatus) +#define kr_revision KREG_IDX(Revision) +#define kr_portcnt KREG_IDX(PortCnt) +#define kr_serdes_cfg0 KREG_IDX(SerdesCfg0) +#define kr_serdes_cfg1 (kr_serdes_cfg0 + 1) +#define kr_serdes_stat KREG_IDX(SerdesStat) +#define kr_xgxs_cfg KREG_IDX(XGXSCfg) + +/* These must only be written via qib_write_kreg_ctxt() */ +#define kr_rcvhdraddr KREG_IDX(RcvHdrAddr0) +#define kr_rcvhdrtailaddr KREG_IDX(RcvHdrTailAddr0) + +#define CREG_IDX(regname) ((QIB_6120_##regname##_OFFS - \ + QIB_6120_LBIntCnt_OFFS) / sizeof(u64)) + +#define cr_badformat CREG_IDX(RxBadFormatCnt) +#define cr_erricrc CREG_IDX(RxICRCErrCnt) +#define cr_errlink CREG_IDX(RxLinkProblemCnt) +#define cr_errlpcrc CREG_IDX(RxLPCRCErrCnt) +#define cr_errpkey CREG_IDX(RxPKeyMismatchCnt) +#define cr_rcvflowctrl_err CREG_IDX(RxFlowCtrlErrCnt) +#define cr_err_rlen CREG_IDX(RxLenErrCnt) +#define cr_errslen CREG_IDX(TxLenErrCnt) +#define cr_errtidfull CREG_IDX(RxTIDFullErrCnt) +#define cr_errtidvalid CREG_IDX(RxTIDValidErrCnt) +#define cr_errvcrc CREG_IDX(RxVCRCErrCnt) +#define cr_ibstatuschange CREG_IDX(IBStatusChangeCnt) +#define cr_lbint CREG_IDX(LBIntCnt) +#define cr_invalidrlen CREG_IDX(RxMaxMinLenErrCnt) +#define cr_invalidslen CREG_IDX(TxMaxMinLenErrCnt) +#define cr_lbflowstall CREG_IDX(LBFlowStallCnt) +#define cr_pktrcv CREG_IDX(RxDataPktCnt) +#define cr_pktrcvflowctrl CREG_IDX(RxFlowPktCnt) +#define cr_pktsend CREG_IDX(TxDataPktCnt) +#define cr_pktsendflow CREG_IDX(TxFlowPktCnt) +#define cr_portovfl CREG_IDX(RxP0HdrEgrOvflCnt) +#define cr_rcvebp CREG_IDX(RxEBPCnt) +#define cr_rcvovfl CREG_IDX(RxBufOvflCnt) +#define cr_senddropped CREG_IDX(TxDroppedPktCnt) +#define cr_sendstall CREG_IDX(TxFlowStallCnt) +#define cr_sendunderrun CREG_IDX(TxUnderrunCnt) +#define cr_wordrcv CREG_IDX(RxDwordCnt) +#define cr_wordsend CREG_IDX(TxDwordCnt) +#define cr_txunsupvl CREG_IDX(TxUnsupVLErrCnt) +#define cr_rxdroppkt CREG_IDX(RxDroppedPktCnt) +#define cr_iblinkerrrecov CREG_IDX(IBLinkErrRecoveryCnt) +#define cr_iblinkdown CREG_IDX(IBLinkDownedCnt) +#define cr_ibsymbolerr CREG_IDX(IBSymbolErrCnt) + +#define SYM_RMASK(regname, fldname) ((u64) \ + QIB_6120_##regname##_##fldname##_RMASK) +#define SYM_MASK(regname, fldname) ((u64) \ + QIB_6120_##regname##_##fldname##_RMASK << \ + QIB_6120_##regname##_##fldname##_LSB) +#define SYM_LSB(regname, fldname) (QIB_6120_##regname##_##fldname##_LSB) + +#define SYM_FIELD(value, regname, fldname) ((u64) \ + (((value) >> SYM_LSB(regname, fldname)) & \ + SYM_RMASK(regname, fldname))) +#define ERR_MASK(fldname) SYM_MASK(ErrMask, fldname##Mask) +#define HWE_MASK(fldname) SYM_MASK(HwErrMask, fldname##Mask) + +/* link training states, from IBC */ +#define IB_6120_LT_STATE_DISABLED 0x00 +#define IB_6120_LT_STATE_LINKUP 0x01 +#define IB_6120_LT_STATE_POLLACTIVE 0x02 +#define IB_6120_LT_STATE_POLLQUIET 0x03 +#define IB_6120_LT_STATE_SLEEPDELAY 0x04 +#define IB_6120_LT_STATE_SLEEPQUIET 0x05 +#define IB_6120_LT_STATE_CFGDEBOUNCE 0x08 +#define IB_6120_LT_STATE_CFGRCVFCFG 0x09 +#define IB_6120_LT_STATE_CFGWAITRMT 0x0a +#define IB_6120_LT_STATE_CFGIDLE 0x0b +#define IB_6120_LT_STATE_RECOVERRETRAIN 0x0c +#define IB_6120_LT_STATE_RECOVERWAITRMT 0x0e +#define IB_6120_LT_STATE_RECOVERIDLE 0x0f + +/* link state machine states from IBC */ +#define IB_6120_L_STATE_DOWN 0x0 +#define IB_6120_L_STATE_INIT 0x1 +#define IB_6120_L_STATE_ARM 0x2 +#define IB_6120_L_STATE_ACTIVE 0x3 +#define IB_6120_L_STATE_ACT_DEFER 0x4 + +static const u8 qib_6120_physportstate[0x20] = { + [IB_6120_LT_STATE_DISABLED] = IB_PHYSPORTSTATE_DISABLED, + [IB_6120_LT_STATE_LINKUP] = IB_PHYSPORTSTATE_LINKUP, + [IB_6120_LT_STATE_POLLACTIVE] = IB_PHYSPORTSTATE_POLL, + [IB_6120_LT_STATE_POLLQUIET] = IB_PHYSPORTSTATE_POLL, + [IB_6120_LT_STATE_SLEEPDELAY] = IB_PHYSPORTSTATE_SLEEP, + [IB_6120_LT_STATE_SLEEPQUIET] = IB_PHYSPORTSTATE_SLEEP, + [IB_6120_LT_STATE_CFGDEBOUNCE] = + IB_PHYSPORTSTATE_CFG_TRAIN, + [IB_6120_LT_STATE_CFGRCVFCFG] = + IB_PHYSPORTSTATE_CFG_TRAIN, + [IB_6120_LT_STATE_CFGWAITRMT] = + IB_PHYSPORTSTATE_CFG_TRAIN, + [IB_6120_LT_STATE_CFGIDLE] = IB_PHYSPORTSTATE_CFG_TRAIN, + [IB_6120_LT_STATE_RECOVERRETRAIN] = + IB_PHYSPORTSTATE_LINK_ERR_RECOVER, + [IB_6120_LT_STATE_RECOVERWAITRMT] = + IB_PHYSPORTSTATE_LINK_ERR_RECOVER, + [IB_6120_LT_STATE_RECOVERIDLE] = + IB_PHYSPORTSTATE_LINK_ERR_RECOVER, + [0x10] = IB_PHYSPORTSTATE_CFG_TRAIN, + [0x11] = IB_PHYSPORTSTATE_CFG_TRAIN, + [0x12] = IB_PHYSPORTSTATE_CFG_TRAIN, + [0x13] = IB_PHYSPORTSTATE_CFG_TRAIN, + [0x14] = IB_PHYSPORTSTATE_CFG_TRAIN, + [0x15] = IB_PHYSPORTSTATE_CFG_TRAIN, + [0x16] = IB_PHYSPORTSTATE_CFG_TRAIN, + [0x17] = IB_PHYSPORTSTATE_CFG_TRAIN +}; + + +struct qib_chip_specific { + u64 __iomem *cregbase; + u64 *cntrs; + u64 *portcntrs; + void *dummy_hdrq; /* used after ctxt close */ + dma_addr_t dummy_hdrq_phys; + spinlock_t kernel_tid_lock; /* no back to back kernel TID writes */ + spinlock_t user_tid_lock; /* no back to back user TID writes */ + spinlock_t rcvmod_lock; /* protect rcvctrl shadow changes */ + spinlock_t gpio_lock; /* RMW of shadows/regs for ExtCtrl and GPIO */ + u64 hwerrmask; + u64 errormask; + u64 gpio_out; /* shadow of kr_gpio_out, for rmw ops */ + u64 gpio_mask; /* shadow the gpio mask register */ + u64 extctrl; /* shadow the gpio output enable, etc... */ + /* + * these 5 fields are used to establish deltas for IB symbol + * errors and linkrecovery errors. They can be reported on + * some chips during link negotiation prior to INIT, and with + * DDR when faking DDR negotiations with non-IBTA switches. + * The chip counters are adjusted at driver unload if there is + * a non-zero delta. + */ + u64 ibdeltainprog; + u64 ibsymdelta; + u64 ibsymsnap; + u64 iblnkerrdelta; + u64 iblnkerrsnap; + u64 ibcctrl; /* shadow for kr_ibcctrl */ + u32 lastlinkrecov; /* link recovery issue */ + u32 cntrnamelen; + u32 portcntrnamelen; + u32 ncntrs; + u32 nportcntrs; + /* used with gpio interrupts to implement IB counters */ + u32 rxfc_unsupvl_errs; + u32 overrun_thresh_errs; + /* + * these count only cases where _successive_ LocalLinkIntegrity + * errors were seen in the receive headers of IB standard packets + */ + u32 lli_errs; + u32 lli_counter; + u64 lli_thresh; + u64 sword; /* total dwords sent (sample result) */ + u64 rword; /* total dwords received (sample result) */ + u64 spkts; /* total packets sent (sample result) */ + u64 rpkts; /* total packets received (sample result) */ + u64 xmit_wait; /* # of ticks no data sent (sample result) */ + struct timer_list pma_timer; + struct qib_pportdata *ppd; + char emsgbuf[128]; + char bitsmsgbuf[64]; + u8 pma_sample_status; +}; + +/* ibcctrl bits */ +#define QLOGIC_IB_IBCC_LINKINITCMD_DISABLE 1 +/* cycle through TS1/TS2 till OK */ +#define QLOGIC_IB_IBCC_LINKINITCMD_POLL 2 +/* wait for TS1, then go on */ +#define QLOGIC_IB_IBCC_LINKINITCMD_SLEEP 3 +#define QLOGIC_IB_IBCC_LINKINITCMD_SHIFT 16 + +#define QLOGIC_IB_IBCC_LINKCMD_DOWN 1 /* move to 0x11 */ +#define QLOGIC_IB_IBCC_LINKCMD_ARMED 2 /* move to 0x21 */ +#define QLOGIC_IB_IBCC_LINKCMD_ACTIVE 3 /* move to 0x31 */ +#define QLOGIC_IB_IBCC_LINKCMD_SHIFT 18 + +/* + * We could have a single register get/put routine, that takes a group type, + * but this is somewhat clearer and cleaner. It also gives us some error + * checking. 64 bit register reads should always work, but are inefficient + * on opteron (the northbridge always generates 2 separate HT 32 bit reads), + * so we use kreg32 wherever possible. User register and counter register + * reads are always 32 bit reads, so only one form of those routines. + */ + +/** + * qib_read_ureg32 - read 32-bit virtualized per-context register + * @dd: device + * @regno: register number + * @ctxt: context number + * + * Return the contents of a register that is virtualized to be per context. + * Returns -1 on errors (not distinguishable from valid contents at + * runtime; we may add a separate error variable at some point). + */ +static inline u32 qib_read_ureg32(const struct qib_devdata *dd, + enum qib_ureg regno, int ctxt) +{ + if (!dd->kregbase || !(dd->flags & QIB_PRESENT)) + return 0; + + if (dd->userbase) + return readl(regno + (u64 __iomem *) + ((char __iomem *)dd->userbase + + dd->ureg_align * ctxt)); + else + return readl(regno + (u64 __iomem *) + (dd->uregbase + + (char __iomem *)dd->kregbase + + dd->ureg_align * ctxt)); +} + +/** + * qib_write_ureg - write 32-bit virtualized per-context register + * @dd: device + * @regno: register number + * @value: value + * @ctxt: context + * + * Write the contents of a register that is virtualized to be per context. + */ +static inline void qib_write_ureg(const struct qib_devdata *dd, + enum qib_ureg regno, u64 value, int ctxt) +{ + u64 __iomem *ubase; + + if (dd->userbase) + ubase = (u64 __iomem *) + ((char __iomem *) dd->userbase + + dd->ureg_align * ctxt); + else + ubase = (u64 __iomem *) + (dd->uregbase + + (char __iomem *) dd->kregbase + + dd->ureg_align * ctxt); + + if (dd->kregbase && (dd->flags & QIB_PRESENT)) + writeq(value, &ubase[regno]); +} + +static inline u32 qib_read_kreg32(const struct qib_devdata *dd, + const u16 regno) +{ + if (!dd->kregbase || !(dd->flags & QIB_PRESENT)) + return -1; + return readl((u32 __iomem *)&dd->kregbase[regno]); +} + +static inline u64 qib_read_kreg64(const struct qib_devdata *dd, + const u16 regno) +{ + if (!dd->kregbase || !(dd->flags & QIB_PRESENT)) + return -1; + + return readq(&dd->kregbase[regno]); +} + +static inline void qib_write_kreg(const struct qib_devdata *dd, + const u16 regno, u64 value) +{ + if (dd->kregbase && (dd->flags & QIB_PRESENT)) + writeq(value, &dd->kregbase[regno]); +} + +/** + * qib_write_kreg_ctxt - write a device's per-ctxt 64-bit kernel register + * @dd: the qlogic_ib device + * @regno: the register number to write + * @ctxt: the context containing the register + * @value: the value to write + */ +static inline void qib_write_kreg_ctxt(const struct qib_devdata *dd, + const u16 regno, unsigned ctxt, + u64 value) +{ + qib_write_kreg(dd, regno + ctxt, value); +} + +static inline void write_6120_creg(const struct qib_devdata *dd, + u16 regno, u64 value) +{ + if (dd->cspec->cregbase && (dd->flags & QIB_PRESENT)) + writeq(value, &dd->cspec->cregbase[regno]); +} + +static inline u64 read_6120_creg(const struct qib_devdata *dd, u16 regno) +{ + if (!dd->cspec->cregbase || !(dd->flags & QIB_PRESENT)) + return 0; + return readq(&dd->cspec->cregbase[regno]); +} + +static inline u32 read_6120_creg32(const struct qib_devdata *dd, u16 regno) +{ + if (!dd->cspec->cregbase || !(dd->flags & QIB_PRESENT)) + return 0; + return readl(&dd->cspec->cregbase[regno]); +} + +/* kr_control bits */ +#define QLOGIC_IB_C_RESET 1U + +/* kr_intstatus, kr_intclear, kr_intmask bits */ +#define QLOGIC_IB_I_RCVURG_MASK ((1U << 5) - 1) +#define QLOGIC_IB_I_RCVURG_SHIFT 0 +#define QLOGIC_IB_I_RCVAVAIL_MASK ((1U << 5) - 1) +#define QLOGIC_IB_I_RCVAVAIL_SHIFT 12 + +#define QLOGIC_IB_C_FREEZEMODE 0x00000002 +#define QLOGIC_IB_C_LINKENABLE 0x00000004 +#define QLOGIC_IB_I_ERROR 0x0000000080000000ULL +#define QLOGIC_IB_I_SPIOSENT 0x0000000040000000ULL +#define QLOGIC_IB_I_SPIOBUFAVAIL 0x0000000020000000ULL +#define QLOGIC_IB_I_GPIO 0x0000000010000000ULL +#define QLOGIC_IB_I_BITSEXTANT \ + ((QLOGIC_IB_I_RCVURG_MASK << QLOGIC_IB_I_RCVURG_SHIFT) | \ + (QLOGIC_IB_I_RCVAVAIL_MASK << \ + QLOGIC_IB_I_RCVAVAIL_SHIFT) | \ + QLOGIC_IB_I_ERROR | QLOGIC_IB_I_SPIOSENT | \ + QLOGIC_IB_I_SPIOBUFAVAIL | QLOGIC_IB_I_GPIO) + +/* kr_hwerrclear, kr_hwerrmask, kr_hwerrstatus, bits */ +#define QLOGIC_IB_HWE_PCIEMEMPARITYERR_MASK 0x000000000000003fULL +#define QLOGIC_IB_HWE_PCIEMEMPARITYERR_SHIFT 0 +#define QLOGIC_IB_HWE_PCIEPOISONEDTLP 0x0000000010000000ULL +#define QLOGIC_IB_HWE_PCIECPLTIMEOUT 0x0000000020000000ULL +#define QLOGIC_IB_HWE_PCIEBUSPARITYXTLH 0x0000000040000000ULL +#define QLOGIC_IB_HWE_PCIEBUSPARITYXADM 0x0000000080000000ULL +#define QLOGIC_IB_HWE_PCIEBUSPARITYRADM 0x0000000100000000ULL +#define QLOGIC_IB_HWE_COREPLL_FBSLIP 0x0080000000000000ULL +#define QLOGIC_IB_HWE_COREPLL_RFSLIP 0x0100000000000000ULL +#define QLOGIC_IB_HWE_PCIE1PLLFAILED 0x0400000000000000ULL +#define QLOGIC_IB_HWE_PCIE0PLLFAILED 0x0800000000000000ULL +#define QLOGIC_IB_HWE_SERDESPLLFAILED 0x1000000000000000ULL + + +/* kr_extstatus bits */ +#define QLOGIC_IB_EXTS_FREQSEL 0x2 +#define QLOGIC_IB_EXTS_SERDESSEL 0x4 +#define QLOGIC_IB_EXTS_MEMBIST_ENDTEST 0x0000000000004000 +#define QLOGIC_IB_EXTS_MEMBIST_FOUND 0x0000000000008000 + +/* kr_xgxsconfig bits */ +#define QLOGIC_IB_XGXS_RESET 0x5ULL + +#define _QIB_GPIO_SDA_NUM 1 +#define _QIB_GPIO_SCL_NUM 0 + +/* Bits in GPIO for the added IB link interrupts */ +#define GPIO_RXUVL_BIT 3 +#define GPIO_OVRUN_BIT 4 +#define GPIO_LLI_BIT 5 +#define GPIO_ERRINTR_MASK 0x38 + + +#define QLOGIC_IB_RT_BUFSIZE_MASK 0xe0000000ULL +#define QLOGIC_IB_RT_BUFSIZE_SHIFTVAL(tid) \ + ((((tid) & QLOGIC_IB_RT_BUFSIZE_MASK) >> 29) + 11 - 1) +#define QLOGIC_IB_RT_BUFSIZE(tid) (1 << QLOGIC_IB_RT_BUFSIZE_SHIFTVAL(tid)) +#define QLOGIC_IB_RT_IS_VALID(tid) \ + (((tid) & QLOGIC_IB_RT_BUFSIZE_MASK) && \ + ((((tid) & QLOGIC_IB_RT_BUFSIZE_MASK) != QLOGIC_IB_RT_BUFSIZE_MASK))) +#define QLOGIC_IB_RT_ADDR_MASK 0x1FFFFFFFULL /* 29 bits valid */ +#define QLOGIC_IB_RT_ADDR_SHIFT 10 + +#define QLOGIC_IB_R_INTRAVAIL_SHIFT 16 +#define QLOGIC_IB_R_TAILUPD_SHIFT 31 +#define IBA6120_R_PKEY_DIS_SHIFT 30 + +#define PBC_6120_VL15_SEND_CTRL (1ULL << 31) /* pbc; VL15; link_buf only */ + +#define IBCBUSFRSPCPARITYERR HWE_MASK(IBCBusFromSPCParityErr) +#define IBCBUSTOSPCPARITYERR HWE_MASK(IBCBusToSPCParityErr) + +#define SYM_MASK_BIT(regname, fldname, bit) ((u64) \ + ((1ULL << (SYM_LSB(regname, fldname) + (bit))))) + +#define TXEMEMPARITYERR_PIOBUF \ + SYM_MASK_BIT(HwErrMask, TXEMemParityErrMask, 0) +#define TXEMEMPARITYERR_PIOPBC \ + SYM_MASK_BIT(HwErrMask, TXEMemParityErrMask, 1) +#define TXEMEMPARITYERR_PIOLAUNCHFIFO \ + SYM_MASK_BIT(HwErrMask, TXEMemParityErrMask, 2) + +#define RXEMEMPARITYERR_RCVBUF \ + SYM_MASK_BIT(HwErrMask, RXEMemParityErrMask, 0) +#define RXEMEMPARITYERR_LOOKUPQ \ + SYM_MASK_BIT(HwErrMask, RXEMemParityErrMask, 1) +#define RXEMEMPARITYERR_EXPTID \ + SYM_MASK_BIT(HwErrMask, RXEMemParityErrMask, 2) +#define RXEMEMPARITYERR_EAGERTID \ + SYM_MASK_BIT(HwErrMask, RXEMemParityErrMask, 3) +#define RXEMEMPARITYERR_FLAGBUF \ + SYM_MASK_BIT(HwErrMask, RXEMemParityErrMask, 4) +#define RXEMEMPARITYERR_DATAINFO \ + SYM_MASK_BIT(HwErrMask, RXEMemParityErrMask, 5) +#define RXEMEMPARITYERR_HDRINFO \ + SYM_MASK_BIT(HwErrMask, RXEMemParityErrMask, 6) + +/* 6120 specific hardware errors... */ +static const struct qib_hwerror_msgs qib_6120_hwerror_msgs[] = { + /* generic hardware errors */ + QLOGIC_IB_HWE_MSG(IBCBUSFRSPCPARITYERR, "QIB2IB Parity"), + QLOGIC_IB_HWE_MSG(IBCBUSTOSPCPARITYERR, "IB2QIB Parity"), + + QLOGIC_IB_HWE_MSG(TXEMEMPARITYERR_PIOBUF, + "TXE PIOBUF Memory Parity"), + QLOGIC_IB_HWE_MSG(TXEMEMPARITYERR_PIOPBC, + "TXE PIOPBC Memory Parity"), + QLOGIC_IB_HWE_MSG(TXEMEMPARITYERR_PIOLAUNCHFIFO, + "TXE PIOLAUNCHFIFO Memory Parity"), + + QLOGIC_IB_HWE_MSG(RXEMEMPARITYERR_RCVBUF, + "RXE RCVBUF Memory Parity"), + QLOGIC_IB_HWE_MSG(RXEMEMPARITYERR_LOOKUPQ, + "RXE LOOKUPQ Memory Parity"), + QLOGIC_IB_HWE_MSG(RXEMEMPARITYERR_EAGERTID, + "RXE EAGERTID Memory Parity"), + QLOGIC_IB_HWE_MSG(RXEMEMPARITYERR_EXPTID, + "RXE EXPTID Memory Parity"), + QLOGIC_IB_HWE_MSG(RXEMEMPARITYERR_FLAGBUF, + "RXE FLAGBUF Memory Parity"), + QLOGIC_IB_HWE_MSG(RXEMEMPARITYERR_DATAINFO, + "RXE DATAINFO Memory Parity"), + QLOGIC_IB_HWE_MSG(RXEMEMPARITYERR_HDRINFO, + "RXE HDRINFO Memory Parity"), + + /* chip-specific hardware errors */ + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIEPOISONEDTLP, + "PCIe Poisoned TLP"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIECPLTIMEOUT, + "PCIe completion timeout"), + /* + * In practice, it's unlikely wthat we'll see PCIe PLL, or bus + * parity or memory parity error failures, because most likely we + * won't be able to talk to the core of the chip. Nonetheless, we + * might see them, if they are in parts of the PCIe core that aren't + * essential. + */ + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIE1PLLFAILED, + "PCIePLL1"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIE0PLLFAILED, + "PCIePLL0"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIEBUSPARITYXTLH, + "PCIe XTLH core parity"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIEBUSPARITYXADM, + "PCIe ADM TX core parity"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIEBUSPARITYRADM, + "PCIe ADM RX core parity"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_SERDESPLLFAILED, + "SerDes PLL"), +}; + +#define TXE_PIO_PARITY (TXEMEMPARITYERR_PIOBUF | TXEMEMPARITYERR_PIOPBC) +#define _QIB_PLL_FAIL (QLOGIC_IB_HWE_COREPLL_FBSLIP | \ + QLOGIC_IB_HWE_COREPLL_RFSLIP) + + /* variables for sanity checking interrupt and errors */ +#define IB_HWE_BITSEXTANT \ + (HWE_MASK(RXEMemParityErr) | \ + HWE_MASK(TXEMemParityErr) | \ + (QLOGIC_IB_HWE_PCIEMEMPARITYERR_MASK << \ + QLOGIC_IB_HWE_PCIEMEMPARITYERR_SHIFT) | \ + QLOGIC_IB_HWE_PCIE1PLLFAILED | \ + QLOGIC_IB_HWE_PCIE0PLLFAILED | \ + QLOGIC_IB_HWE_PCIEPOISONEDTLP | \ + QLOGIC_IB_HWE_PCIECPLTIMEOUT | \ + QLOGIC_IB_HWE_PCIEBUSPARITYXTLH | \ + QLOGIC_IB_HWE_PCIEBUSPARITYXADM | \ + QLOGIC_IB_HWE_PCIEBUSPARITYRADM | \ + HWE_MASK(PowerOnBISTFailed) | \ + QLOGIC_IB_HWE_COREPLL_FBSLIP | \ + QLOGIC_IB_HWE_COREPLL_RFSLIP | \ + QLOGIC_IB_HWE_SERDESPLLFAILED | \ + HWE_MASK(IBCBusToSPCParityErr) | \ + HWE_MASK(IBCBusFromSPCParityErr)) + +#define IB_E_BITSEXTANT \ + (ERR_MASK(RcvFormatErr) | ERR_MASK(RcvVCRCErr) | \ + ERR_MASK(RcvICRCErr) | ERR_MASK(RcvMinPktLenErr) | \ + ERR_MASK(RcvMaxPktLenErr) | ERR_MASK(RcvLongPktLenErr) | \ + ERR_MASK(RcvShortPktLenErr) | ERR_MASK(RcvUnexpectedCharErr) | \ + ERR_MASK(RcvUnsupportedVLErr) | ERR_MASK(RcvEBPErr) | \ + ERR_MASK(RcvIBFlowErr) | ERR_MASK(RcvBadVersionErr) | \ + ERR_MASK(RcvEgrFullErr) | ERR_MASK(RcvHdrFullErr) | \ + ERR_MASK(RcvBadTidErr) | ERR_MASK(RcvHdrLenErr) | \ + ERR_MASK(RcvHdrErr) | ERR_MASK(RcvIBLostLinkErr) | \ + ERR_MASK(SendMinPktLenErr) | ERR_MASK(SendMaxPktLenErr) | \ + ERR_MASK(SendUnderRunErr) | ERR_MASK(SendPktLenErr) | \ + ERR_MASK(SendDroppedSmpPktErr) | \ + ERR_MASK(SendDroppedDataPktErr) | \ + ERR_MASK(SendPioArmLaunchErr) | \ + ERR_MASK(SendUnexpectedPktNumErr) | \ + ERR_MASK(SendUnsupportedVLErr) | ERR_MASK(IBStatusChanged) | \ + ERR_MASK(InvalidAddrErr) | ERR_MASK(ResetNegated) | \ + ERR_MASK(HardwareErr)) + +#define QLOGIC_IB_E_PKTERRS ( \ + ERR_MASK(SendPktLenErr) | \ + ERR_MASK(SendDroppedDataPktErr) | \ + ERR_MASK(RcvVCRCErr) | \ + ERR_MASK(RcvICRCErr) | \ + ERR_MASK(RcvShortPktLenErr) | \ + ERR_MASK(RcvEBPErr)) + +/* These are all rcv-related errors which we want to count for stats */ +#define E_SUM_PKTERRS \ + (ERR_MASK(RcvHdrLenErr) | ERR_MASK(RcvBadTidErr) | \ + ERR_MASK(RcvBadVersionErr) | ERR_MASK(RcvHdrErr) | \ + ERR_MASK(RcvLongPktLenErr) | ERR_MASK(RcvShortPktLenErr) | \ + ERR_MASK(RcvMaxPktLenErr) | ERR_MASK(RcvMinPktLenErr) | \ + ERR_MASK(RcvFormatErr) | ERR_MASK(RcvUnsupportedVLErr) | \ + ERR_MASK(RcvUnexpectedCharErr) | ERR_MASK(RcvEBPErr)) + +/* These are all send-related errors which we want to count for stats */ +#define E_SUM_ERRS \ + (ERR_MASK(SendPioArmLaunchErr) | \ + ERR_MASK(SendUnexpectedPktNumErr) | \ + ERR_MASK(SendDroppedDataPktErr) | \ + ERR_MASK(SendDroppedSmpPktErr) | \ + ERR_MASK(SendMaxPktLenErr) | ERR_MASK(SendUnsupportedVLErr) | \ + ERR_MASK(SendMinPktLenErr) | ERR_MASK(SendPktLenErr) | \ + ERR_MASK(InvalidAddrErr)) + +/* + * this is similar to E_SUM_ERRS, but can't ignore armlaunch, don't ignore + * errors not related to freeze and cancelling buffers. Can't ignore + * armlaunch because could get more while still cleaning up, and need + * to cancel those as they happen. + */ +#define E_SPKT_ERRS_IGNORE \ + (ERR_MASK(SendDroppedDataPktErr) | \ + ERR_MASK(SendDroppedSmpPktErr) | \ + ERR_MASK(SendMaxPktLenErr) | ERR_MASK(SendMinPktLenErr) | \ + ERR_MASK(SendPktLenErr)) + +/* + * these are errors that can occur when the link changes state while + * a packet is being sent or received. This doesn't cover things + * like EBP or VCRC that can be the result of a sending having the + * link change state, so we receive a "known bad" packet. + */ +#define E_SUM_LINK_PKTERRS \ + (ERR_MASK(SendDroppedDataPktErr) | \ + ERR_MASK(SendDroppedSmpPktErr) | \ + ERR_MASK(SendMinPktLenErr) | ERR_MASK(SendPktLenErr) | \ + ERR_MASK(RcvShortPktLenErr) | ERR_MASK(RcvMinPktLenErr) | \ + ERR_MASK(RcvUnexpectedCharErr)) + +static void qib_6120_put_tid_2(struct qib_devdata *, u64 __iomem *, + u32, unsigned long); + +/* + * On platforms using this chip, and not having ordered WC stores, we + * can get TXE parity errors due to speculative reads to the PIO buffers, + * and this, due to a chip issue can result in (many) false parity error + * reports. So it's a debug print on those, and an info print on systems + * where the speculative reads don't occur. + */ +static void qib_6120_txe_recover(struct qib_devdata *dd) +{ + if (!qib_unordered_wc()) + qib_devinfo(dd->pcidev, + "Recovering from TXE PIO parity error\n"); +} + +/* enable/disable chip from delivering interrupts */ +static void qib_6120_set_intr_state(struct qib_devdata *dd, u32 enable) +{ + if (enable) { + if (dd->flags & QIB_BADINTR) + return; + qib_write_kreg(dd, kr_intmask, ~0ULL); + /* force re-interrupt of any pending interrupts. */ + qib_write_kreg(dd, kr_intclear, 0ULL); + } else + qib_write_kreg(dd, kr_intmask, 0ULL); +} + +/* + * Try to cleanup as much as possible for anything that might have gone + * wrong while in freeze mode, such as pio buffers being written by user + * processes (causing armlaunch), send errors due to going into freeze mode, + * etc., and try to avoid causing extra interrupts while doing so. + * Forcibly update the in-memory pioavail register copies after cleanup + * because the chip won't do it while in freeze mode (the register values + * themselves are kept correct). + * Make sure that we don't lose any important interrupts by using the chip + * feature that says that writing 0 to a bit in *clear that is set in + * *status will cause an interrupt to be generated again (if allowed by + * the *mask value). + * This is in chip-specific code because of all of the register accesses, + * even though the details are similar on most chips + */ +static void qib_6120_clear_freeze(struct qib_devdata *dd) +{ + /* disable error interrupts, to avoid confusion */ + qib_write_kreg(dd, kr_errmask, 0ULL); + + /* also disable interrupts; errormask is sometimes overwritten */ + qib_6120_set_intr_state(dd, 0); + + qib_cancel_sends(dd->pport); + + /* clear the freeze, and be sure chip saw it */ + qib_write_kreg(dd, kr_control, dd->control); + qib_read_kreg32(dd, kr_scratch); + + /* force in-memory update now we are out of freeze */ + qib_force_pio_avail_update(dd); + + /* + * force new interrupt if any hwerr, error or interrupt bits are + * still set, and clear "safe" send packet errors related to freeze + * and cancelling sends. Re-enable error interrupts before possible + * force of re-interrupt on pending interrupts. + */ + qib_write_kreg(dd, kr_hwerrclear, 0ULL); + qib_write_kreg(dd, kr_errclear, E_SPKT_ERRS_IGNORE); + qib_write_kreg(dd, kr_errmask, dd->cspec->errormask); + qib_6120_set_intr_state(dd, 1); +} + +/** + * qib_handle_6120_hwerrors - display hardware errors. + * @dd: the qlogic_ib device + * @msg: the output buffer + * @msgl: the size of the output buffer + * + * Use same msg buffer as regular errors to avoid excessive stack + * use. Most hardware errors are catastrophic, but for right now, + * we'll print them and continue. Reuse the same message buffer as + * handle_6120_errors() to avoid excessive stack usage. + */ +static void qib_handle_6120_hwerrors(struct qib_devdata *dd, char *msg, + size_t msgl) +{ + u64 hwerrs; + u32 bits, ctrl; + int isfatal = 0; + char *bitsmsg; + + hwerrs = qib_read_kreg64(dd, kr_hwerrstatus); + if (!hwerrs) + return; + if (hwerrs == ~0ULL) { + qib_dev_err(dd, + "Read of hardware error status failed (all bits set); ignoring\n"); + return; + } + qib_stats.sps_hwerrs++; + + /* Always clear the error status register, except MEMBISTFAIL, + * regardless of whether we continue or stop using the chip. + * We want that set so we know it failed, even across driver reload. + * We'll still ignore it in the hwerrmask. We do this partly for + * diagnostics, but also for support */ + qib_write_kreg(dd, kr_hwerrclear, + hwerrs & ~HWE_MASK(PowerOnBISTFailed)); + + hwerrs &= dd->cspec->hwerrmask; + + /* + * Make sure we get this much out, unless told to be quiet, + * or it's occurred within the last 5 seconds. + */ + if (hwerrs & ~(TXE_PIO_PARITY | RXEMEMPARITYERR_EAGERTID)) + qib_devinfo(dd->pcidev, + "Hardware error: hwerr=0x%llx (cleared)\n", + (unsigned long long) hwerrs); + + if (hwerrs & ~IB_HWE_BITSEXTANT) + qib_dev_err(dd, + "hwerror interrupt with unknown errors %llx set\n", + (unsigned long long)(hwerrs & ~IB_HWE_BITSEXTANT)); + + ctrl = qib_read_kreg32(dd, kr_control); + if ((ctrl & QLOGIC_IB_C_FREEZEMODE) && !dd->diag_client) { + /* + * Parity errors in send memory are recoverable, + * just cancel the send (if indicated in * sendbuffererror), + * count the occurrence, unfreeze (if no other handled + * hardware error bits are set), and continue. They can + * occur if a processor speculative read is done to the PIO + * buffer while we are sending a packet, for example. + */ + if (hwerrs & TXE_PIO_PARITY) { + qib_6120_txe_recover(dd); + hwerrs &= ~TXE_PIO_PARITY; + } + + if (!hwerrs) { + static u32 freeze_cnt; + + freeze_cnt++; + qib_6120_clear_freeze(dd); + } else + isfatal = 1; + } + + *msg = '\0'; + + if (hwerrs & HWE_MASK(PowerOnBISTFailed)) { + isfatal = 1; + strlcat(msg, + "[Memory BIST test failed, InfiniPath hardware unusable]", + msgl); + /* ignore from now on, so disable until driver reloaded */ + dd->cspec->hwerrmask &= ~HWE_MASK(PowerOnBISTFailed); + qib_write_kreg(dd, kr_hwerrmask, dd->cspec->hwerrmask); + } + + qib_format_hwerrors(hwerrs, qib_6120_hwerror_msgs, + ARRAY_SIZE(qib_6120_hwerror_msgs), msg, msgl); + + bitsmsg = dd->cspec->bitsmsgbuf; + if (hwerrs & (QLOGIC_IB_HWE_PCIEMEMPARITYERR_MASK << + QLOGIC_IB_HWE_PCIEMEMPARITYERR_SHIFT)) { + bits = (u32) ((hwerrs >> + QLOGIC_IB_HWE_PCIEMEMPARITYERR_SHIFT) & + QLOGIC_IB_HWE_PCIEMEMPARITYERR_MASK); + snprintf(bitsmsg, sizeof(dd->cspec->bitsmsgbuf), + "[PCIe Mem Parity Errs %x] ", bits); + strlcat(msg, bitsmsg, msgl); + } + + if (hwerrs & _QIB_PLL_FAIL) { + isfatal = 1; + snprintf(bitsmsg, sizeof(dd->cspec->bitsmsgbuf), + "[PLL failed (%llx), InfiniPath hardware unusable]", + (unsigned long long) hwerrs & _QIB_PLL_FAIL); + strlcat(msg, bitsmsg, msgl); + /* ignore from now on, so disable until driver reloaded */ + dd->cspec->hwerrmask &= ~(hwerrs & _QIB_PLL_FAIL); + qib_write_kreg(dd, kr_hwerrmask, dd->cspec->hwerrmask); + } + + if (hwerrs & QLOGIC_IB_HWE_SERDESPLLFAILED) { + /* + * If it occurs, it is left masked since the external + * interface is unused + */ + dd->cspec->hwerrmask &= ~QLOGIC_IB_HWE_SERDESPLLFAILED; + qib_write_kreg(dd, kr_hwerrmask, dd->cspec->hwerrmask); + } + + if (hwerrs) + /* + * if any set that we aren't ignoring; only + * make the complaint once, in case it's stuck + * or recurring, and we get here multiple + * times. + */ + qib_dev_err(dd, "%s hardware error\n", msg); + else + *msg = 0; /* recovered from all of them */ + + if (isfatal && !dd->diag_client) { + qib_dev_err(dd, + "Fatal Hardware Error, no longer usable, SN %.16s\n", + dd->serial); + /* + * for /sys status file and user programs to print; if no + * trailing brace is copied, we'll know it was truncated. + */ + if (dd->freezemsg) + snprintf(dd->freezemsg, dd->freezelen, + "{%s}", msg); + qib_disable_after_error(dd); + } +} + +/* + * Decode the error status into strings, deciding whether to always + * print * it or not depending on "normal packet errors" vs everything + * else. Return 1 if "real" errors, otherwise 0 if only packet + * errors, so caller can decide what to print with the string. + */ +static int qib_decode_6120_err(struct qib_devdata *dd, char *buf, size_t blen, + u64 err) +{ + int iserr = 1; + + *buf = '\0'; + if (err & QLOGIC_IB_E_PKTERRS) { + if (!(err & ~QLOGIC_IB_E_PKTERRS)) + iserr = 0; + if ((err & ERR_MASK(RcvICRCErr)) && + !(err&(ERR_MASK(RcvVCRCErr)|ERR_MASK(RcvEBPErr)))) + strlcat(buf, "CRC ", blen); + if (!iserr) + goto done; + } + if (err & ERR_MASK(RcvHdrLenErr)) + strlcat(buf, "rhdrlen ", blen); + if (err & ERR_MASK(RcvBadTidErr)) + strlcat(buf, "rbadtid ", blen); + if (err & ERR_MASK(RcvBadVersionErr)) + strlcat(buf, "rbadversion ", blen); + if (err & ERR_MASK(RcvHdrErr)) + strlcat(buf, "rhdr ", blen); + if (err & ERR_MASK(RcvLongPktLenErr)) + strlcat(buf, "rlongpktlen ", blen); + if (err & ERR_MASK(RcvMaxPktLenErr)) + strlcat(buf, "rmaxpktlen ", blen); + if (err & ERR_MASK(RcvMinPktLenErr)) + strlcat(buf, "rminpktlen ", blen); + if (err & ERR_MASK(SendMinPktLenErr)) + strlcat(buf, "sminpktlen ", blen); + if (err & ERR_MASK(RcvFormatErr)) + strlcat(buf, "rformaterr ", blen); + if (err & ERR_MASK(RcvUnsupportedVLErr)) + strlcat(buf, "runsupvl ", blen); + if (err & ERR_MASK(RcvUnexpectedCharErr)) + strlcat(buf, "runexpchar ", blen); + if (err & ERR_MASK(RcvIBFlowErr)) + strlcat(buf, "ribflow ", blen); + if (err & ERR_MASK(SendUnderRunErr)) + strlcat(buf, "sunderrun ", blen); + if (err & ERR_MASK(SendPioArmLaunchErr)) + strlcat(buf, "spioarmlaunch ", blen); + if (err & ERR_MASK(SendUnexpectedPktNumErr)) + strlcat(buf, "sunexperrpktnum ", blen); + if (err & ERR_MASK(SendDroppedSmpPktErr)) + strlcat(buf, "sdroppedsmppkt ", blen); + if (err & ERR_MASK(SendMaxPktLenErr)) + strlcat(buf, "smaxpktlen ", blen); + if (err & ERR_MASK(SendUnsupportedVLErr)) + strlcat(buf, "sunsupVL ", blen); + if (err & ERR_MASK(InvalidAddrErr)) + strlcat(buf, "invalidaddr ", blen); + if (err & ERR_MASK(RcvEgrFullErr)) + strlcat(buf, "rcvegrfull ", blen); + if (err & ERR_MASK(RcvHdrFullErr)) + strlcat(buf, "rcvhdrfull ", blen); + if (err & ERR_MASK(IBStatusChanged)) + strlcat(buf, "ibcstatuschg ", blen); + if (err & ERR_MASK(RcvIBLostLinkErr)) + strlcat(buf, "riblostlink ", blen); + if (err & ERR_MASK(HardwareErr)) + strlcat(buf, "hardware ", blen); + if (err & ERR_MASK(ResetNegated)) + strlcat(buf, "reset ", blen); +done: + return iserr; +} + +/* + * Called when we might have an error that is specific to a particular + * PIO buffer, and may need to cancel that buffer, so it can be re-used. + */ +static void qib_disarm_6120_senderrbufs(struct qib_pportdata *ppd) +{ + unsigned long sbuf[2]; + struct qib_devdata *dd = ppd->dd; + + /* + * It's possible that sendbuffererror could have bits set; might + * have already done this as a result of hardware error handling. + */ + sbuf[0] = qib_read_kreg64(dd, kr_sendbuffererror); + sbuf[1] = qib_read_kreg64(dd, kr_sendbuffererror + 1); + + if (sbuf[0] || sbuf[1]) + qib_disarm_piobufs_set(dd, sbuf, + dd->piobcnt2k + dd->piobcnt4k); +} + +static int chk_6120_linkrecovery(struct qib_devdata *dd, u64 ibcs) +{ + int ret = 1; + u32 ibstate = qib_6120_iblink_state(ibcs); + u32 linkrecov = read_6120_creg32(dd, cr_iblinkerrrecov); + + if (linkrecov != dd->cspec->lastlinkrecov) { + /* and no more until active again */ + dd->cspec->lastlinkrecov = 0; + qib_set_linkstate(dd->pport, QIB_IB_LINKDOWN); + ret = 0; + } + if (ibstate == IB_PORT_ACTIVE) + dd->cspec->lastlinkrecov = + read_6120_creg32(dd, cr_iblinkerrrecov); + return ret; +} + +static void handle_6120_errors(struct qib_devdata *dd, u64 errs) +{ + char *msg; + u64 ignore_this_time = 0; + u64 iserr = 0; + struct qib_pportdata *ppd = dd->pport; + u64 mask; + + /* don't report errors that are masked */ + errs &= dd->cspec->errormask; + msg = dd->cspec->emsgbuf; + + /* do these first, they are most important */ + if (errs & ERR_MASK(HardwareErr)) + qib_handle_6120_hwerrors(dd, msg, sizeof(dd->cspec->emsgbuf)); + + if (errs & ~IB_E_BITSEXTANT) + qib_dev_err(dd, + "error interrupt with unknown errors %llx set\n", + (unsigned long long) (errs & ~IB_E_BITSEXTANT)); + + if (errs & E_SUM_ERRS) { + qib_disarm_6120_senderrbufs(ppd); + if ((errs & E_SUM_LINK_PKTERRS) && + !(ppd->lflags & QIBL_LINKACTIVE)) { + /* + * This can happen when trying to bring the link + * up, but the IB link changes state at the "wrong" + * time. The IB logic then complains that the packet + * isn't valid. We don't want to confuse people, so + * we just don't print them, except at debug + */ + ignore_this_time = errs & E_SUM_LINK_PKTERRS; + } + } else if ((errs & E_SUM_LINK_PKTERRS) && + !(ppd->lflags & QIBL_LINKACTIVE)) { + /* + * This can happen when SMA is trying to bring the link + * up, but the IB link changes state at the "wrong" time. + * The IB logic then complains that the packet isn't + * valid. We don't want to confuse people, so we just + * don't print them, except at debug + */ + ignore_this_time = errs & E_SUM_LINK_PKTERRS; + } + + qib_write_kreg(dd, kr_errclear, errs); + + errs &= ~ignore_this_time; + if (!errs) + goto done; + + /* + * The ones we mask off are handled specially below + * or above. + */ + mask = ERR_MASK(IBStatusChanged) | ERR_MASK(RcvEgrFullErr) | + ERR_MASK(RcvHdrFullErr) | ERR_MASK(HardwareErr); + qib_decode_6120_err(dd, msg, sizeof(dd->cspec->emsgbuf), errs & ~mask); + + if (errs & E_SUM_PKTERRS) + qib_stats.sps_rcverrs++; + if (errs & E_SUM_ERRS) + qib_stats.sps_txerrs++; + + iserr = errs & ~(E_SUM_PKTERRS | QLOGIC_IB_E_PKTERRS); + + if (errs & ERR_MASK(IBStatusChanged)) { + u64 ibcs = qib_read_kreg64(dd, kr_ibcstatus); + u32 ibstate = qib_6120_iblink_state(ibcs); + int handle = 1; + + if (ibstate != IB_PORT_INIT && dd->cspec->lastlinkrecov) + handle = chk_6120_linkrecovery(dd, ibcs); + /* + * Since going into a recovery state causes the link state + * to go down and since recovery is transitory, it is better + * if we "miss" ever seeing the link training state go into + * recovery (i.e., ignore this transition for link state + * special handling purposes) without updating lastibcstat. + */ + if (handle && qib_6120_phys_portstate(ibcs) == + IB_PHYSPORTSTATE_LINK_ERR_RECOVER) + handle = 0; + if (handle) + qib_handle_e_ibstatuschanged(ppd, ibcs); + } + + if (errs & ERR_MASK(ResetNegated)) { + qib_dev_err(dd, + "Got reset, requires re-init (unload and reload driver)\n"); + dd->flags &= ~QIB_INITTED; /* needs re-init */ + /* mark as having had error */ + *dd->devstatusp |= QIB_STATUS_HWERROR; + *dd->pport->statusp &= ~QIB_STATUS_IB_CONF; + } + + if (*msg && iserr) + qib_dev_porterr(dd, ppd->port, "%s error\n", msg); + + if (ppd->state_wanted & ppd->lflags) + wake_up_interruptible(&ppd->state_wait); + + /* + * If there were hdrq or egrfull errors, wake up any processes + * waiting in poll. We used to try to check which contexts had + * the overflow, but given the cost of that and the chip reads + * to support it, it's better to just wake everybody up if we + * get an overflow; waiters can poll again if it's not them. + */ + if (errs & (ERR_MASK(RcvEgrFullErr) | ERR_MASK(RcvHdrFullErr))) { + qib_handle_urcv(dd, ~0U); + if (errs & ERR_MASK(RcvEgrFullErr)) + qib_stats.sps_buffull++; + else + qib_stats.sps_hdrfull++; + } +done: + return; +} + +/** + * qib_6120_init_hwerrors - enable hardware errors + * @dd: the qlogic_ib device + * + * now that we have finished initializing everything that might reasonably + * cause a hardware error, and cleared those errors bits as they occur, + * we can enable hardware errors in the mask (potentially enabling + * freeze mode), and enable hardware errors as errors (along with + * everything else) in errormask + */ +static void qib_6120_init_hwerrors(struct qib_devdata *dd) +{ + u64 val; + u64 extsval; + + extsval = qib_read_kreg64(dd, kr_extstatus); + + if (!(extsval & QLOGIC_IB_EXTS_MEMBIST_ENDTEST)) + qib_dev_err(dd, "MemBIST did not complete!\n"); + + /* init so all hwerrors interrupt, and enter freeze, ajdust below */ + val = ~0ULL; + if (dd->minrev < 2) { + /* + * Avoid problem with internal interface bus parity + * checking. Fixed in Rev2. + */ + val &= ~QLOGIC_IB_HWE_PCIEBUSPARITYRADM; + } + /* avoid some intel cpu's speculative read freeze mode issue */ + val &= ~TXEMEMPARITYERR_PIOBUF; + + dd->cspec->hwerrmask = val; + + qib_write_kreg(dd, kr_hwerrclear, ~HWE_MASK(PowerOnBISTFailed)); + qib_write_kreg(dd, kr_hwerrmask, dd->cspec->hwerrmask); + + /* clear all */ + qib_write_kreg(dd, kr_errclear, ~0ULL); + /* enable errors that are masked, at least this first time. */ + qib_write_kreg(dd, kr_errmask, ~0ULL); + dd->cspec->errormask = qib_read_kreg64(dd, kr_errmask); + /* clear any interrupts up to this point (ints still not enabled) */ + qib_write_kreg(dd, kr_intclear, ~0ULL); + + qib_write_kreg(dd, kr_rcvbthqp, + dd->qpn_mask << (QIB_6120_RcvBTHQP_BTHQP_Mask_LSB - 1) | + QIB_KD_QP); +} + +/* + * Disable and enable the armlaunch error. Used for PIO bandwidth testing + * on chips that are count-based, rather than trigger-based. There is no + * reference counting, but that's also fine, given the intended use. + * Only chip-specific because it's all register accesses + */ +static void qib_set_6120_armlaunch(struct qib_devdata *dd, u32 enable) +{ + if (enable) { + qib_write_kreg(dd, kr_errclear, + ERR_MASK(SendPioArmLaunchErr)); + dd->cspec->errormask |= ERR_MASK(SendPioArmLaunchErr); + } else + dd->cspec->errormask &= ~ERR_MASK(SendPioArmLaunchErr); + qib_write_kreg(dd, kr_errmask, dd->cspec->errormask); +} + +/* + * Formerly took parameter <which> in pre-shifted, + * pre-merged form with LinkCmd and LinkInitCmd + * together, and assuming the zero was NOP. + */ +static void qib_set_ib_6120_lstate(struct qib_pportdata *ppd, u16 linkcmd, + u16 linitcmd) +{ + u64 mod_wd; + struct qib_devdata *dd = ppd->dd; + unsigned long flags; + + if (linitcmd == QLOGIC_IB_IBCC_LINKINITCMD_DISABLE) { + /* + * If we are told to disable, note that so link-recovery + * code does not attempt to bring us back up. + */ + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags |= QIBL_IB_LINK_DISABLED; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + } else if (linitcmd || linkcmd == QLOGIC_IB_IBCC_LINKCMD_DOWN) { + /* + * Any other linkinitcmd will lead to LINKDOWN and then + * to INIT (if all is well), so clear flag to let + * link-recovery code attempt to bring us back up. + */ + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~QIBL_IB_LINK_DISABLED; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + } + + mod_wd = (linkcmd << QLOGIC_IB_IBCC_LINKCMD_SHIFT) | + (linitcmd << QLOGIC_IB_IBCC_LINKINITCMD_SHIFT); + + qib_write_kreg(dd, kr_ibcctrl, dd->cspec->ibcctrl | mod_wd); + /* write to chip to prevent back-to-back writes of control reg */ + qib_write_kreg(dd, kr_scratch, 0); +} + +/** + * qib_6120_bringup_serdes - bring up the serdes + * @ppd: the qlogic_ib device + */ +static int qib_6120_bringup_serdes(struct qib_pportdata *ppd) +{ + struct qib_devdata *dd = ppd->dd; + u64 val, config1, prev_val, hwstat, ibc; + + /* Put IBC in reset, sends disabled */ + dd->control &= ~QLOGIC_IB_C_LINKENABLE; + qib_write_kreg(dd, kr_control, 0ULL); + + dd->cspec->ibdeltainprog = 1; + dd->cspec->ibsymsnap = read_6120_creg32(dd, cr_ibsymbolerr); + dd->cspec->iblnkerrsnap = read_6120_creg32(dd, cr_iblinkerrrecov); + + /* flowcontrolwatermark is in units of KBytes */ + ibc = 0x5ULL << SYM_LSB(IBCCtrl, FlowCtrlWaterMark); + /* + * How often flowctrl sent. More or less in usecs; balance against + * watermark value, so that in theory senders always get a flow + * control update in time to not let the IB link go idle. + */ + ibc |= 0x3ULL << SYM_LSB(IBCCtrl, FlowCtrlPeriod); + /* max error tolerance */ + dd->cspec->lli_thresh = 0xf; + ibc |= (u64) dd->cspec->lli_thresh << SYM_LSB(IBCCtrl, PhyerrThreshold); + /* use "real" buffer space for */ + ibc |= 4ULL << SYM_LSB(IBCCtrl, CreditScale); + /* IB credit flow control. */ + ibc |= 0xfULL << SYM_LSB(IBCCtrl, OverrunThreshold); + /* + * set initial max size pkt IBC will send, including ICRC; it's the + * PIO buffer size in dwords, less 1; also see qib_set_mtu() + */ + ibc |= ((u64)(ppd->ibmaxlen >> 2) + 1) << SYM_LSB(IBCCtrl, MaxPktLen); + dd->cspec->ibcctrl = ibc; /* without linkcmd or linkinitcmd! */ + + /* initially come up waiting for TS1, without sending anything. */ + val = dd->cspec->ibcctrl | (QLOGIC_IB_IBCC_LINKINITCMD_DISABLE << + QLOGIC_IB_IBCC_LINKINITCMD_SHIFT); + qib_write_kreg(dd, kr_ibcctrl, val); + + val = qib_read_kreg64(dd, kr_serdes_cfg0); + config1 = qib_read_kreg64(dd, kr_serdes_cfg1); + + /* + * Force reset on, also set rxdetect enable. Must do before reading + * serdesstatus at least for simulation, or some of the bits in + * serdes status will come back as undefined and cause simulation + * failures + */ + val |= SYM_MASK(SerdesCfg0, ResetPLL) | + SYM_MASK(SerdesCfg0, RxDetEnX) | + (SYM_MASK(SerdesCfg0, L1PwrDnA) | + SYM_MASK(SerdesCfg0, L1PwrDnB) | + SYM_MASK(SerdesCfg0, L1PwrDnC) | + SYM_MASK(SerdesCfg0, L1PwrDnD)); + qib_write_kreg(dd, kr_serdes_cfg0, val); + /* be sure chip saw it */ + qib_read_kreg64(dd, kr_scratch); + udelay(5); /* need pll reset set at least for a bit */ + /* + * after PLL is reset, set the per-lane Resets and TxIdle and + * clear the PLL reset and rxdetect (to get falling edge). + * Leave L1PWR bits set (permanently) + */ + val &= ~(SYM_MASK(SerdesCfg0, RxDetEnX) | + SYM_MASK(SerdesCfg0, ResetPLL) | + (SYM_MASK(SerdesCfg0, L1PwrDnA) | + SYM_MASK(SerdesCfg0, L1PwrDnB) | + SYM_MASK(SerdesCfg0, L1PwrDnC) | + SYM_MASK(SerdesCfg0, L1PwrDnD))); + val |= (SYM_MASK(SerdesCfg0, ResetA) | + SYM_MASK(SerdesCfg0, ResetB) | + SYM_MASK(SerdesCfg0, ResetC) | + SYM_MASK(SerdesCfg0, ResetD)) | + SYM_MASK(SerdesCfg0, TxIdeEnX); + qib_write_kreg(dd, kr_serdes_cfg0, val); + /* be sure chip saw it */ + (void) qib_read_kreg64(dd, kr_scratch); + /* need PLL reset clear for at least 11 usec before lane + * resets cleared; give it a few more to be sure */ + udelay(15); + val &= ~((SYM_MASK(SerdesCfg0, ResetA) | + SYM_MASK(SerdesCfg0, ResetB) | + SYM_MASK(SerdesCfg0, ResetC) | + SYM_MASK(SerdesCfg0, ResetD)) | + SYM_MASK(SerdesCfg0, TxIdeEnX)); + + qib_write_kreg(dd, kr_serdes_cfg0, val); + /* be sure chip saw it */ + (void) qib_read_kreg64(dd, kr_scratch); + + val = qib_read_kreg64(dd, kr_xgxs_cfg); + prev_val = val; + if (val & QLOGIC_IB_XGXS_RESET) + val &= ~QLOGIC_IB_XGXS_RESET; + if (SYM_FIELD(val, XGXSCfg, polarity_inv) != ppd->rx_pol_inv) { + /* need to compensate for Tx inversion in partner */ + val &= ~SYM_MASK(XGXSCfg, polarity_inv); + val |= (u64)ppd->rx_pol_inv << SYM_LSB(XGXSCfg, polarity_inv); + } + if (val != prev_val) + qib_write_kreg(dd, kr_xgxs_cfg, val); + + val = qib_read_kreg64(dd, kr_serdes_cfg0); + + /* clear current and de-emphasis bits */ + config1 &= ~0x0ffffffff00ULL; + /* set current to 20ma */ + config1 |= 0x00000000000ULL; + /* set de-emphasis to -5.68dB */ + config1 |= 0x0cccc000000ULL; + qib_write_kreg(dd, kr_serdes_cfg1, config1); + + /* base and port guid same for single port */ + ppd->guid = dd->base_guid; + + /* + * the process of setting and un-resetting the serdes normally + * causes a serdes PLL error, so check for that and clear it + * here. Also clearr hwerr bit in errstatus, but not others. + */ + hwstat = qib_read_kreg64(dd, kr_hwerrstatus); + if (hwstat) { + /* should just have PLL, clear all set, in an case */ + qib_write_kreg(dd, kr_hwerrclear, hwstat); + qib_write_kreg(dd, kr_errclear, ERR_MASK(HardwareErr)); + } + + dd->control |= QLOGIC_IB_C_LINKENABLE; + dd->control &= ~QLOGIC_IB_C_FREEZEMODE; + qib_write_kreg(dd, kr_control, dd->control); + + return 0; +} + +/** + * qib_6120_quiet_serdes - set serdes to txidle + * @ppd: physical port of the qlogic_ib device + * Called when driver is being unloaded + */ +static void qib_6120_quiet_serdes(struct qib_pportdata *ppd) +{ + struct qib_devdata *dd = ppd->dd; + u64 val; + + qib_set_ib_6120_lstate(ppd, 0, QLOGIC_IB_IBCC_LINKINITCMD_DISABLE); + + /* disable IBC */ + dd->control &= ~QLOGIC_IB_C_LINKENABLE; + qib_write_kreg(dd, kr_control, + dd->control | QLOGIC_IB_C_FREEZEMODE); + + if (dd->cspec->ibsymdelta || dd->cspec->iblnkerrdelta || + dd->cspec->ibdeltainprog) { + u64 diagc; + + /* enable counter writes */ + diagc = qib_read_kreg64(dd, kr_hwdiagctrl); + qib_write_kreg(dd, kr_hwdiagctrl, + diagc | SYM_MASK(HwDiagCtrl, CounterWrEnable)); + + if (dd->cspec->ibsymdelta || dd->cspec->ibdeltainprog) { + val = read_6120_creg32(dd, cr_ibsymbolerr); + if (dd->cspec->ibdeltainprog) + val -= val - dd->cspec->ibsymsnap; + val -= dd->cspec->ibsymdelta; + write_6120_creg(dd, cr_ibsymbolerr, val); + } + if (dd->cspec->iblnkerrdelta || dd->cspec->ibdeltainprog) { + val = read_6120_creg32(dd, cr_iblinkerrrecov); + if (dd->cspec->ibdeltainprog) + val -= val - dd->cspec->iblnkerrsnap; + val -= dd->cspec->iblnkerrdelta; + write_6120_creg(dd, cr_iblinkerrrecov, val); + } + + /* and disable counter writes */ + qib_write_kreg(dd, kr_hwdiagctrl, diagc); + } + + val = qib_read_kreg64(dd, kr_serdes_cfg0); + val |= SYM_MASK(SerdesCfg0, TxIdeEnX); + qib_write_kreg(dd, kr_serdes_cfg0, val); +} + +/** + * qib_6120_setup_setextled - set the state of the two external LEDs + * @ppd: the qlogic_ib device + * @on: whether the link is up or not + * + * The exact combo of LEDs if on is true is determined by looking + * at the ibcstatus. + * These LEDs indicate the physical and logical state of IB link. + * For this chip (at least with recommended board pinouts), LED1 + * is Yellow (logical state) and LED2 is Green (physical state), + * + * Note: We try to match the Mellanox HCA LED behavior as best + * we can. Green indicates physical link state is OK (something is + * plugged in, and we can train). + * Amber indicates the link is logically up (ACTIVE). + * Mellanox further blinks the amber LED to indicate data packet + * activity, but we have no hardware support for that, so it would + * require waking up every 10-20 msecs and checking the counters + * on the chip, and then turning the LED off if appropriate. That's + * visible overhead, so not something we will do. + * + */ +static void qib_6120_setup_setextled(struct qib_pportdata *ppd, u32 on) +{ + u64 extctl, val, lst, ltst; + unsigned long flags; + struct qib_devdata *dd = ppd->dd; + + /* + * The diags use the LED to indicate diag info, so we leave + * the external LED alone when the diags are running. + */ + if (dd->diag_client) + return; + + /* Allow override of LED display for, e.g. Locating system in rack */ + if (ppd->led_override) { + ltst = (ppd->led_override & QIB_LED_PHYS) ? + IB_PHYSPORTSTATE_LINKUP : IB_PHYSPORTSTATE_DISABLED, + lst = (ppd->led_override & QIB_LED_LOG) ? + IB_PORT_ACTIVE : IB_PORT_DOWN; + } else if (on) { + val = qib_read_kreg64(dd, kr_ibcstatus); + ltst = qib_6120_phys_portstate(val); + lst = qib_6120_iblink_state(val); + } else { + ltst = 0; + lst = 0; + } + + spin_lock_irqsave(&dd->cspec->gpio_lock, flags); + extctl = dd->cspec->extctrl & ~(SYM_MASK(EXTCtrl, LEDPriPortGreenOn) | + SYM_MASK(EXTCtrl, LEDPriPortYellowOn)); + + if (ltst == IB_PHYSPORTSTATE_LINKUP) + extctl |= SYM_MASK(EXTCtrl, LEDPriPortYellowOn); + if (lst == IB_PORT_ACTIVE) + extctl |= SYM_MASK(EXTCtrl, LEDPriPortGreenOn); + dd->cspec->extctrl = extctl; + qib_write_kreg(dd, kr_extctrl, extctl); + spin_unlock_irqrestore(&dd->cspec->gpio_lock, flags); +} + +/** + * qib_6120_setup_cleanup - clean up any per-chip chip-specific stuff + * @dd: the qlogic_ib device + * + * This is called during driver unload. +*/ +static void qib_6120_setup_cleanup(struct qib_devdata *dd) +{ + qib_free_irq(dd); + kfree(dd->cspec->cntrs); + kfree(dd->cspec->portcntrs); + if (dd->cspec->dummy_hdrq) { + dma_free_coherent(&dd->pcidev->dev, + ALIGN(dd->rcvhdrcnt * + dd->rcvhdrentsize * + sizeof(u32), PAGE_SIZE), + dd->cspec->dummy_hdrq, + dd->cspec->dummy_hdrq_phys); + dd->cspec->dummy_hdrq = NULL; + } +} + +static void qib_wantpiobuf_6120_intr(struct qib_devdata *dd, u32 needint) +{ + unsigned long flags; + + spin_lock_irqsave(&dd->sendctrl_lock, flags); + if (needint) + dd->sendctrl |= SYM_MASK(SendCtrl, PIOIntBufAvail); + else + dd->sendctrl &= ~SYM_MASK(SendCtrl, PIOIntBufAvail); + qib_write_kreg(dd, kr_sendctrl, dd->sendctrl); + qib_write_kreg(dd, kr_scratch, 0ULL); + spin_unlock_irqrestore(&dd->sendctrl_lock, flags); +} + +/* + * handle errors and unusual events first, separate function + * to improve cache hits for fast path interrupt handling + */ +static noinline void unlikely_6120_intr(struct qib_devdata *dd, u64 istat) +{ + if (unlikely(istat & ~QLOGIC_IB_I_BITSEXTANT)) + qib_dev_err(dd, "interrupt with unknown interrupts %Lx set\n", + istat & ~QLOGIC_IB_I_BITSEXTANT); + + if (istat & QLOGIC_IB_I_ERROR) { + u64 estat = 0; + + qib_stats.sps_errints++; + estat = qib_read_kreg64(dd, kr_errstatus); + if (!estat) + qib_devinfo(dd->pcidev, + "error interrupt (%Lx), but no error bits set!\n", + istat); + handle_6120_errors(dd, estat); + } + + if (istat & QLOGIC_IB_I_GPIO) { + u32 gpiostatus; + u32 to_clear = 0; + + /* + * GPIO_3..5 on IBA6120 Rev2 chips indicate + * errors that we need to count. + */ + gpiostatus = qib_read_kreg32(dd, kr_gpio_status); + /* First the error-counter case. */ + if (gpiostatus & GPIO_ERRINTR_MASK) { + /* want to clear the bits we see asserted. */ + to_clear |= (gpiostatus & GPIO_ERRINTR_MASK); + + /* + * Count appropriately, clear bits out of our copy, + * as they have been "handled". + */ + if (gpiostatus & (1 << GPIO_RXUVL_BIT)) + dd->cspec->rxfc_unsupvl_errs++; + if (gpiostatus & (1 << GPIO_OVRUN_BIT)) + dd->cspec->overrun_thresh_errs++; + if (gpiostatus & (1 << GPIO_LLI_BIT)) + dd->cspec->lli_errs++; + gpiostatus &= ~GPIO_ERRINTR_MASK; + } + if (gpiostatus) { + /* + * Some unexpected bits remain. If they could have + * caused the interrupt, complain and clear. + * To avoid repetition of this condition, also clear + * the mask. It is almost certainly due to error. + */ + const u32 mask = qib_read_kreg32(dd, kr_gpio_mask); + + /* + * Also check that the chip reflects our shadow, + * and report issues, If they caused the interrupt. + * we will suppress by refreshing from the shadow. + */ + if (mask & gpiostatus) { + to_clear |= (gpiostatus & mask); + dd->cspec->gpio_mask &= ~(gpiostatus & mask); + qib_write_kreg(dd, kr_gpio_mask, + dd->cspec->gpio_mask); + } + } + if (to_clear) + qib_write_kreg(dd, kr_gpio_clear, (u64) to_clear); + } +} + +static irqreturn_t qib_6120intr(int irq, void *data) +{ + struct qib_devdata *dd = data; + irqreturn_t ret; + u32 istat, ctxtrbits, rmask, crcs = 0; + unsigned i; + + if ((dd->flags & (QIB_PRESENT | QIB_BADINTR)) != QIB_PRESENT) { + /* + * This return value is not great, but we do not want the + * interrupt core code to remove our interrupt handler + * because we don't appear to be handling an interrupt + * during a chip reset. + */ + ret = IRQ_HANDLED; + goto bail; + } + + istat = qib_read_kreg32(dd, kr_intstatus); + + if (unlikely(!istat)) { + ret = IRQ_NONE; /* not our interrupt, or already handled */ + goto bail; + } + if (unlikely(istat == -1)) { + qib_bad_intrstatus(dd); + /* don't know if it was our interrupt or not */ + ret = IRQ_NONE; + goto bail; + } + + this_cpu_inc(*dd->int_counter); + + if (unlikely(istat & (~QLOGIC_IB_I_BITSEXTANT | + QLOGIC_IB_I_GPIO | QLOGIC_IB_I_ERROR))) + unlikely_6120_intr(dd, istat); + + /* + * Clear the interrupt bits we found set, relatively early, so we + * "know" know the chip will have seen this by the time we process + * the queue, and will re-interrupt if necessary. The processor + * itself won't take the interrupt again until we return. + */ + qib_write_kreg(dd, kr_intclear, istat); + + /* + * Handle kernel receive queues before checking for pio buffers + * available since receives can overflow; piobuf waiters can afford + * a few extra cycles, since they were waiting anyway. + */ + ctxtrbits = istat & + ((QLOGIC_IB_I_RCVAVAIL_MASK << QLOGIC_IB_I_RCVAVAIL_SHIFT) | + (QLOGIC_IB_I_RCVURG_MASK << QLOGIC_IB_I_RCVURG_SHIFT)); + if (ctxtrbits) { + rmask = (1U << QLOGIC_IB_I_RCVAVAIL_SHIFT) | + (1U << QLOGIC_IB_I_RCVURG_SHIFT); + for (i = 0; i < dd->first_user_ctxt; i++) { + if (ctxtrbits & rmask) { + ctxtrbits &= ~rmask; + crcs += qib_kreceive(dd->rcd[i], + &dd->cspec->lli_counter, + NULL); + } + rmask <<= 1; + } + if (crcs) { + u32 cntr = dd->cspec->lli_counter; + + cntr += crcs; + if (cntr) { + if (cntr > dd->cspec->lli_thresh) { + dd->cspec->lli_counter = 0; + dd->cspec->lli_errs++; + } else + dd->cspec->lli_counter += cntr; + } + } + + + if (ctxtrbits) { + ctxtrbits = + (ctxtrbits >> QLOGIC_IB_I_RCVAVAIL_SHIFT) | + (ctxtrbits >> QLOGIC_IB_I_RCVURG_SHIFT); + qib_handle_urcv(dd, ctxtrbits); + } + } + + if ((istat & QLOGIC_IB_I_SPIOBUFAVAIL) && (dd->flags & QIB_INITTED)) + qib_ib_piobufavail(dd); + + ret = IRQ_HANDLED; +bail: + return ret; +} + +/* + * Set up our chip-specific interrupt handler + * The interrupt type has already been setup, so + * we just need to do the registration and error checking. + */ +static void qib_setup_6120_interrupt(struct qib_devdata *dd) +{ + int ret; + + /* + * If the chip supports added error indication via GPIO pins, + * enable interrupts on those bits so the interrupt routine + * can count the events. Also set flag so interrupt routine + * can know they are expected. + */ + if (SYM_FIELD(dd->revision, Revision_R, + ChipRevMinor) > 1) { + /* Rev2+ reports extra errors via internal GPIO pins */ + dd->cspec->gpio_mask |= GPIO_ERRINTR_MASK; + qib_write_kreg(dd, kr_gpio_mask, dd->cspec->gpio_mask); + } + + ret = pci_request_irq(dd->pcidev, 0, qib_6120intr, NULL, dd, + QIB_DRV_NAME); + if (ret) + qib_dev_err(dd, + "Couldn't setup interrupt (irq=%d): %d\n", + pci_irq_vector(dd->pcidev, 0), ret); +} + +/** + * pe_boardname - fill in the board name + * @dd: the qlogic_ib device + * + * info is based on the board revision register + */ +static void pe_boardname(struct qib_devdata *dd) +{ + u32 boardid; + + boardid = SYM_FIELD(dd->revision, Revision, + BoardID); + + switch (boardid) { + case 2: + dd->boardname = "InfiniPath_QLE7140"; + break; + default: + qib_dev_err(dd, "Unknown 6120 board with ID %u\n", boardid); + dd->boardname = "Unknown_InfiniPath_6120"; + break; + } + + if (dd->majrev != 4 || !dd->minrev || dd->minrev > 2) + qib_dev_err(dd, + "Unsupported InfiniPath hardware revision %u.%u!\n", + dd->majrev, dd->minrev); + + snprintf(dd->boardversion, sizeof(dd->boardversion), + "ChipABI %u.%u, %s, InfiniPath%u %u.%u, SW Compat %u\n", + QIB_CHIP_VERS_MAJ, QIB_CHIP_VERS_MIN, dd->boardname, + (unsigned int)SYM_FIELD(dd->revision, Revision_R, Arch), + dd->majrev, dd->minrev, + (unsigned int)SYM_FIELD(dd->revision, Revision_R, SW)); +} + +/* + * This routine sleeps, so it can only be called from user context, not + * from interrupt context. If we need interrupt context, we can split + * it into two routines. + */ +static int qib_6120_setup_reset(struct qib_devdata *dd) +{ + u64 val; + int i; + int ret; + u16 cmdval; + u8 int_line, clinesz; + + qib_pcie_getcmd(dd, &cmdval, &int_line, &clinesz); + + /* Use ERROR so it shows up in logs, etc. */ + qib_dev_err(dd, "Resetting InfiniPath unit %u\n", dd->unit); + + /* no interrupts till re-initted */ + qib_6120_set_intr_state(dd, 0); + + dd->cspec->ibdeltainprog = 0; + dd->cspec->ibsymdelta = 0; + dd->cspec->iblnkerrdelta = 0; + + /* + * Keep chip from being accessed until we are ready. Use + * writeq() directly, to allow the write even though QIB_PRESENT + * isn't set. + */ + dd->flags &= ~(QIB_INITTED | QIB_PRESENT); + /* so we check interrupts work again */ + dd->z_int_counter = qib_int_counter(dd); + val = dd->control | QLOGIC_IB_C_RESET; + writeq(val, &dd->kregbase[kr_control]); + mb(); /* prevent compiler re-ordering around actual reset */ + + for (i = 1; i <= 5; i++) { + /* + * Allow MBIST, etc. to complete; longer on each retry. + * We sometimes get machine checks from bus timeout if no + * response, so for now, make it *really* long. + */ + msleep(1000 + (1 + i) * 2000); + + qib_pcie_reenable(dd, cmdval, int_line, clinesz); + + /* + * Use readq directly, so we don't need to mark it as PRESENT + * until we get a successful indication that all is well. + */ + val = readq(&dd->kregbase[kr_revision]); + if (val == dd->revision) { + dd->flags |= QIB_PRESENT; /* it's back */ + ret = qib_reinit_intr(dd); + goto bail; + } + } + ret = 0; /* failed */ + +bail: + if (ret) { + if (qib_pcie_params(dd, dd->lbus_width, NULL)) + qib_dev_err(dd, + "Reset failed to setup PCIe or interrupts; continuing anyway\n"); + /* clear the reset error, init error/hwerror mask */ + qib_6120_init_hwerrors(dd); + /* for Rev2 error interrupts; nop for rev 1 */ + qib_write_kreg(dd, kr_gpio_mask, dd->cspec->gpio_mask); + /* clear the reset error, init error/hwerror mask */ + qib_6120_init_hwerrors(dd); + } + return ret; +} + +/** + * qib_6120_put_tid - write a TID in chip + * @dd: the qlogic_ib device + * @tidptr: pointer to the expected TID (in chip) to update + * @type: RCVHQ_RCV_TYPE_EAGER (1) for eager, RCVHQ_RCV_TYPE_EXPECTED (0) + * for expected + * @pa: physical address of in memory buffer; tidinvalid if freeing + * + * This exists as a separate routine to allow for special locking etc. + * It's used for both the full cleanup on exit, as well as the normal + * setup and teardown. + */ +static void qib_6120_put_tid(struct qib_devdata *dd, u64 __iomem *tidptr, + u32 type, unsigned long pa) +{ + u32 __iomem *tidp32 = (u32 __iomem *)tidptr; + unsigned long flags; + int tidx; + spinlock_t *tidlockp; /* select appropriate spinlock */ + + if (!dd->kregbase) + return; + + if (pa != dd->tidinvalid) { + if (pa & ((1U << 11) - 1)) { + qib_dev_err(dd, "Physaddr %lx not 2KB aligned!\n", + pa); + return; + } + pa >>= 11; + if (pa & ~QLOGIC_IB_RT_ADDR_MASK) { + qib_dev_err(dd, + "Physical page address 0x%lx larger than supported\n", + pa); + return; + } + + if (type == RCVHQ_RCV_TYPE_EAGER) + pa |= dd->tidtemplate; + else /* for now, always full 4KB page */ + pa |= 2 << 29; + } + + /* + * Avoid chip issue by writing the scratch register + * before and after the TID, and with an io write barrier. + * We use a spinlock around the writes, so they can't intermix + * with other TID (eager or expected) writes (the chip problem + * is triggered by back to back TID writes). Unfortunately, this + * call can be done from interrupt level for the ctxt 0 eager TIDs, + * so we have to use irqsave locks. + */ + /* + * Assumes tidptr always > egrtidbase + * if type == RCVHQ_RCV_TYPE_EAGER. + */ + tidx = tidptr - dd->egrtidbase; + + tidlockp = (type == RCVHQ_RCV_TYPE_EAGER && tidx < dd->rcvhdrcnt) + ? &dd->cspec->kernel_tid_lock : &dd->cspec->user_tid_lock; + spin_lock_irqsave(tidlockp, flags); + qib_write_kreg(dd, kr_scratch, 0xfeeddeaf); + writel(pa, tidp32); + qib_write_kreg(dd, kr_scratch, 0xdeadbeef); + spin_unlock_irqrestore(tidlockp, flags); +} + +/** + * qib_6120_put_tid_2 - write a TID in chip, Revision 2 or higher + * @dd: the qlogic_ib device + * @tidptr: pointer to the expected TID (in chip) to update + * @type: RCVHQ_RCV_TYPE_EAGER (1) for eager, RCVHQ_RCV_TYPE_EXPECTED (0) + * for expected + * @pa: physical address of in memory buffer; tidinvalid if freeing + * + * This exists as a separate routine to allow for selection of the + * appropriate "flavor". The static calls in cleanup just use the + * revision-agnostic form, as they are not performance critical. + */ +static void qib_6120_put_tid_2(struct qib_devdata *dd, u64 __iomem *tidptr, + u32 type, unsigned long pa) +{ + u32 __iomem *tidp32 = (u32 __iomem *)tidptr; + + if (!dd->kregbase) + return; + + if (pa != dd->tidinvalid) { + if (pa & ((1U << 11) - 1)) { + qib_dev_err(dd, "Physaddr %lx not 2KB aligned!\n", + pa); + return; + } + pa >>= 11; + if (pa & ~QLOGIC_IB_RT_ADDR_MASK) { + qib_dev_err(dd, + "Physical page address 0x%lx larger than supported\n", + pa); + return; + } + + if (type == RCVHQ_RCV_TYPE_EAGER) + pa |= dd->tidtemplate; + else /* for now, always full 4KB page */ + pa |= 2 << 29; + } + writel(pa, tidp32); +} + + +/** + * qib_6120_clear_tids - clear all TID entries for a context, expected and eager + * @dd: the qlogic_ib device + * @rcd: the context + * + * clear all TID entries for a context, expected and eager. + * Used from qib_close(). On this chip, TIDs are only 32 bits, + * not 64, but they are still on 64 bit boundaries, so tidbase + * is declared as u64 * for the pointer math, even though we write 32 bits + */ +static void qib_6120_clear_tids(struct qib_devdata *dd, + struct qib_ctxtdata *rcd) +{ + u64 __iomem *tidbase; + unsigned long tidinv; + u32 ctxt; + int i; + + if (!dd->kregbase || !rcd) + return; + + ctxt = rcd->ctxt; + + tidinv = dd->tidinvalid; + tidbase = (u64 __iomem *) + ((char __iomem *)(dd->kregbase) + + dd->rcvtidbase + + ctxt * dd->rcvtidcnt * sizeof(*tidbase)); + + for (i = 0; i < dd->rcvtidcnt; i++) + /* use func pointer because could be one of two funcs */ + dd->f_put_tid(dd, &tidbase[i], RCVHQ_RCV_TYPE_EXPECTED, + tidinv); + + tidbase = (u64 __iomem *) + ((char __iomem *)(dd->kregbase) + + dd->rcvegrbase + + rcd->rcvegr_tid_base * sizeof(*tidbase)); + + for (i = 0; i < rcd->rcvegrcnt; i++) + /* use func pointer because could be one of two funcs */ + dd->f_put_tid(dd, &tidbase[i], RCVHQ_RCV_TYPE_EAGER, + tidinv); +} + +/** + * qib_6120_tidtemplate - setup constants for TID updates + * @dd: the qlogic_ib device + * + * We setup stuff that we use a lot, to avoid calculating each time + */ +static void qib_6120_tidtemplate(struct qib_devdata *dd) +{ + u32 egrsize = dd->rcvegrbufsize; + + /* + * For now, we always allocate 4KB buffers (at init) so we can + * receive max size packets. We may want a module parameter to + * specify 2KB or 4KB and/or make be per ctxt instead of per device + * for those who want to reduce memory footprint. Note that the + * rcvhdrentsize size must be large enough to hold the largest + * IB header (currently 96 bytes) that we expect to handle (plus of + * course the 2 dwords of RHF). + */ + if (egrsize == 2048) + dd->tidtemplate = 1U << 29; + else if (egrsize == 4096) + dd->tidtemplate = 2U << 29; + dd->tidinvalid = 0; +} + +int __attribute__((weak)) qib_unordered_wc(void) +{ + return 0; +} + +/** + * qib_6120_get_base_info - set chip-specific flags for user code + * @rcd: the qlogic_ib ctxt + * @kinfo: qib_base_info pointer + * + * We set the PCIE flag because the lower bandwidth on PCIe vs + * HyperTransport can affect some user packet algorithms. + */ +static int qib_6120_get_base_info(struct qib_ctxtdata *rcd, + struct qib_base_info *kinfo) +{ + if (qib_unordered_wc()) + kinfo->spi_runtime_flags |= QIB_RUNTIME_FORCE_WC_ORDER; + + kinfo->spi_runtime_flags |= QIB_RUNTIME_PCIE | + QIB_RUNTIME_FORCE_PIOAVAIL | QIB_RUNTIME_PIO_REGSWAPPED; + return 0; +} + + +static struct qib_message_header * +qib_6120_get_msgheader(struct qib_devdata *dd, __le32 *rhf_addr) +{ + return (struct qib_message_header *) + &rhf_addr[sizeof(u64) / sizeof(u32)]; +} + +static void qib_6120_config_ctxts(struct qib_devdata *dd) +{ + dd->ctxtcnt = qib_read_kreg32(dd, kr_portcnt); + if (qib_n_krcv_queues > 1) { + dd->first_user_ctxt = qib_n_krcv_queues * dd->num_pports; + if (dd->first_user_ctxt > dd->ctxtcnt) + dd->first_user_ctxt = dd->ctxtcnt; + dd->qpn_mask = dd->first_user_ctxt <= 2 ? 2 : 6; + } else + dd->first_user_ctxt = dd->num_pports; + dd->n_krcv_queues = dd->first_user_ctxt; +} + +static void qib_update_6120_usrhead(struct qib_ctxtdata *rcd, u64 hd, + u32 updegr, u32 egrhd, u32 npkts) +{ + if (updegr) + qib_write_ureg(rcd->dd, ur_rcvegrindexhead, egrhd, rcd->ctxt); + qib_write_ureg(rcd->dd, ur_rcvhdrhead, hd, rcd->ctxt); +} + +static u32 qib_6120_hdrqempty(struct qib_ctxtdata *rcd) +{ + u32 head, tail; + + head = qib_read_ureg32(rcd->dd, ur_rcvhdrhead, rcd->ctxt); + if (rcd->rcvhdrtail_kvaddr) + tail = qib_get_rcvhdrtail(rcd); + else + tail = qib_read_ureg32(rcd->dd, ur_rcvhdrtail, rcd->ctxt); + return head == tail; +} + +/* + * Used when we close any ctxt, for DMA already in flight + * at close. Can't be done until we know hdrq size, so not + * early in chip init. + */ +static void alloc_dummy_hdrq(struct qib_devdata *dd) +{ + dd->cspec->dummy_hdrq = dma_alloc_coherent(&dd->pcidev->dev, + dd->rcd[0]->rcvhdrq_size, + &dd->cspec->dummy_hdrq_phys, + GFP_ATOMIC | __GFP_COMP); + if (!dd->cspec->dummy_hdrq) { + qib_devinfo(dd->pcidev, "Couldn't allocate dummy hdrq\n"); + /* fallback to just 0'ing */ + dd->cspec->dummy_hdrq_phys = 0UL; + } +} + +/* + * Modify the RCVCTRL register in chip-specific way. This + * is a function because bit positions and (future) register + * location is chip-specific, but the needed operations are + * generic. <op> is a bit-mask because we often want to + * do multiple modifications. + */ +static void rcvctrl_6120_mod(struct qib_pportdata *ppd, unsigned int op, + int ctxt) +{ + struct qib_devdata *dd = ppd->dd; + u64 mask, val; + unsigned long flags; + + spin_lock_irqsave(&dd->cspec->rcvmod_lock, flags); + + if (op & QIB_RCVCTRL_TAILUPD_ENB) + dd->rcvctrl |= (1ULL << QLOGIC_IB_R_TAILUPD_SHIFT); + if (op & QIB_RCVCTRL_TAILUPD_DIS) + dd->rcvctrl &= ~(1ULL << QLOGIC_IB_R_TAILUPD_SHIFT); + if (op & QIB_RCVCTRL_PKEY_ENB) + dd->rcvctrl &= ~(1ULL << IBA6120_R_PKEY_DIS_SHIFT); + if (op & QIB_RCVCTRL_PKEY_DIS) + dd->rcvctrl |= (1ULL << IBA6120_R_PKEY_DIS_SHIFT); + if (ctxt < 0) + mask = (1ULL << dd->ctxtcnt) - 1; + else + mask = (1ULL << ctxt); + if (op & QIB_RCVCTRL_CTXT_ENB) { + /* always done for specific ctxt */ + dd->rcvctrl |= (mask << SYM_LSB(RcvCtrl, PortEnable)); + if (!(dd->flags & QIB_NODMA_RTAIL)) + dd->rcvctrl |= 1ULL << QLOGIC_IB_R_TAILUPD_SHIFT; + /* Write these registers before the context is enabled. */ + qib_write_kreg_ctxt(dd, kr_rcvhdrtailaddr, ctxt, + dd->rcd[ctxt]->rcvhdrqtailaddr_phys); + qib_write_kreg_ctxt(dd, kr_rcvhdraddr, ctxt, + dd->rcd[ctxt]->rcvhdrq_phys); + + if (ctxt == 0 && !dd->cspec->dummy_hdrq) + alloc_dummy_hdrq(dd); + } + if (op & QIB_RCVCTRL_CTXT_DIS) + dd->rcvctrl &= ~(mask << SYM_LSB(RcvCtrl, PortEnable)); + if (op & QIB_RCVCTRL_INTRAVAIL_ENB) + dd->rcvctrl |= (mask << QLOGIC_IB_R_INTRAVAIL_SHIFT); + if (op & QIB_RCVCTRL_INTRAVAIL_DIS) + dd->rcvctrl &= ~(mask << QLOGIC_IB_R_INTRAVAIL_SHIFT); + qib_write_kreg(dd, kr_rcvctrl, dd->rcvctrl); + if ((op & QIB_RCVCTRL_INTRAVAIL_ENB) && dd->rhdrhead_intr_off) { + /* arm rcv interrupt */ + val = qib_read_ureg32(dd, ur_rcvhdrhead, ctxt) | + dd->rhdrhead_intr_off; + qib_write_ureg(dd, ur_rcvhdrhead, val, ctxt); + } + if (op & QIB_RCVCTRL_CTXT_ENB) { + /* + * Init the context registers also; if we were + * disabled, tail and head should both be zero + * already from the enable, but since we don't + * know, we have to do it explicitly. + */ + val = qib_read_ureg32(dd, ur_rcvegrindextail, ctxt); + qib_write_ureg(dd, ur_rcvegrindexhead, val, ctxt); + + val = qib_read_ureg32(dd, ur_rcvhdrtail, ctxt); + dd->rcd[ctxt]->head = val; + /* If kctxt, interrupt on next receive. */ + if (ctxt < dd->first_user_ctxt) + val |= dd->rhdrhead_intr_off; + qib_write_ureg(dd, ur_rcvhdrhead, val, ctxt); + } + if (op & QIB_RCVCTRL_CTXT_DIS) { + /* + * Be paranoid, and never write 0's to these, just use an + * unused page. Of course, + * rcvhdraddr points to a large chunk of memory, so this + * could still trash things, but at least it won't trash + * page 0, and by disabling the ctxt, it should stop "soon", + * even if a packet or two is in already in flight after we + * disabled the ctxt. Only 6120 has this issue. + */ + if (ctxt >= 0) { + qib_write_kreg_ctxt(dd, kr_rcvhdrtailaddr, ctxt, + dd->cspec->dummy_hdrq_phys); + qib_write_kreg_ctxt(dd, kr_rcvhdraddr, ctxt, + dd->cspec->dummy_hdrq_phys); + } else { + unsigned i; + + for (i = 0; i < dd->cfgctxts; i++) { + qib_write_kreg_ctxt(dd, kr_rcvhdrtailaddr, + i, dd->cspec->dummy_hdrq_phys); + qib_write_kreg_ctxt(dd, kr_rcvhdraddr, + i, dd->cspec->dummy_hdrq_phys); + } + } + } + spin_unlock_irqrestore(&dd->cspec->rcvmod_lock, flags); +} + +/* + * Modify the SENDCTRL register in chip-specific way. This + * is a function there may be multiple such registers with + * slightly different layouts. Only operations actually used + * are implemented yet. + * Chip requires no back-back sendctrl writes, so write + * scratch register after writing sendctrl + */ +static void sendctrl_6120_mod(struct qib_pportdata *ppd, u32 op) +{ + struct qib_devdata *dd = ppd->dd; + u64 tmp_dd_sendctrl; + unsigned long flags; + + spin_lock_irqsave(&dd->sendctrl_lock, flags); + + /* First the ones that are "sticky", saved in shadow */ + if (op & QIB_SENDCTRL_CLEAR) + dd->sendctrl = 0; + if (op & QIB_SENDCTRL_SEND_DIS) + dd->sendctrl &= ~SYM_MASK(SendCtrl, PIOEnable); + else if (op & QIB_SENDCTRL_SEND_ENB) + dd->sendctrl |= SYM_MASK(SendCtrl, PIOEnable); + if (op & QIB_SENDCTRL_AVAIL_DIS) + dd->sendctrl &= ~SYM_MASK(SendCtrl, PIOBufAvailUpd); + else if (op & QIB_SENDCTRL_AVAIL_ENB) + dd->sendctrl |= SYM_MASK(SendCtrl, PIOBufAvailUpd); + + if (op & QIB_SENDCTRL_DISARM_ALL) { + u32 i, last; + + tmp_dd_sendctrl = dd->sendctrl; + /* + * disarm any that are not yet launched, disabling sends + * and updates until done. + */ + last = dd->piobcnt2k + dd->piobcnt4k; + tmp_dd_sendctrl &= + ~(SYM_MASK(SendCtrl, PIOEnable) | + SYM_MASK(SendCtrl, PIOBufAvailUpd)); + for (i = 0; i < last; i++) { + qib_write_kreg(dd, kr_sendctrl, tmp_dd_sendctrl | + SYM_MASK(SendCtrl, Disarm) | i); + qib_write_kreg(dd, kr_scratch, 0); + } + } + + tmp_dd_sendctrl = dd->sendctrl; + + if (op & QIB_SENDCTRL_FLUSH) + tmp_dd_sendctrl |= SYM_MASK(SendCtrl, Abort); + if (op & QIB_SENDCTRL_DISARM) + tmp_dd_sendctrl |= SYM_MASK(SendCtrl, Disarm) | + ((op & QIB_6120_SendCtrl_DisarmPIOBuf_RMASK) << + SYM_LSB(SendCtrl, DisarmPIOBuf)); + if (op & QIB_SENDCTRL_AVAIL_BLIP) + tmp_dd_sendctrl &= ~SYM_MASK(SendCtrl, PIOBufAvailUpd); + + qib_write_kreg(dd, kr_sendctrl, tmp_dd_sendctrl); + qib_write_kreg(dd, kr_scratch, 0); + + if (op & QIB_SENDCTRL_AVAIL_BLIP) { + qib_write_kreg(dd, kr_sendctrl, dd->sendctrl); + qib_write_kreg(dd, kr_scratch, 0); + } + + spin_unlock_irqrestore(&dd->sendctrl_lock, flags); + + if (op & QIB_SENDCTRL_FLUSH) { + u32 v; + /* + * ensure writes have hit chip, then do a few + * more reads, to allow DMA of pioavail registers + * to occur, so in-memory copy is in sync with + * the chip. Not always safe to sleep. + */ + v = qib_read_kreg32(dd, kr_scratch); + qib_write_kreg(dd, kr_scratch, v); + v = qib_read_kreg32(dd, kr_scratch); + qib_write_kreg(dd, kr_scratch, v); + qib_read_kreg32(dd, kr_scratch); + } +} + +/** + * qib_portcntr_6120 - read a per-port counter + * @ppd: the qlogic_ib device + * @reg: the counter to snapshot + */ +static u64 qib_portcntr_6120(struct qib_pportdata *ppd, u32 reg) +{ + u64 ret = 0ULL; + struct qib_devdata *dd = ppd->dd; + u16 creg; + /* 0xffff for unimplemented or synthesized counters */ + static const u16 xlator[] = { + [QIBPORTCNTR_PKTSEND] = cr_pktsend, + [QIBPORTCNTR_WORDSEND] = cr_wordsend, + [QIBPORTCNTR_PSXMITDATA] = 0xffff, + [QIBPORTCNTR_PSXMITPKTS] = 0xffff, + [QIBPORTCNTR_PSXMITWAIT] = 0xffff, + [QIBPORTCNTR_SENDSTALL] = cr_sendstall, + [QIBPORTCNTR_PKTRCV] = cr_pktrcv, + [QIBPORTCNTR_PSRCVDATA] = 0xffff, + [QIBPORTCNTR_PSRCVPKTS] = 0xffff, + [QIBPORTCNTR_RCVEBP] = cr_rcvebp, + [QIBPORTCNTR_RCVOVFL] = cr_rcvovfl, + [QIBPORTCNTR_WORDRCV] = cr_wordrcv, + [QIBPORTCNTR_RXDROPPKT] = cr_rxdroppkt, + [QIBPORTCNTR_RXLOCALPHYERR] = 0xffff, + [QIBPORTCNTR_RXVLERR] = 0xffff, + [QIBPORTCNTR_ERRICRC] = cr_erricrc, + [QIBPORTCNTR_ERRVCRC] = cr_errvcrc, + [QIBPORTCNTR_ERRLPCRC] = cr_errlpcrc, + [QIBPORTCNTR_BADFORMAT] = cr_badformat, + [QIBPORTCNTR_ERR_RLEN] = cr_err_rlen, + [QIBPORTCNTR_IBSYMBOLERR] = cr_ibsymbolerr, + [QIBPORTCNTR_INVALIDRLEN] = cr_invalidrlen, + [QIBPORTCNTR_UNSUPVL] = cr_txunsupvl, + [QIBPORTCNTR_EXCESSBUFOVFL] = 0xffff, + [QIBPORTCNTR_ERRLINK] = cr_errlink, + [QIBPORTCNTR_IBLINKDOWN] = cr_iblinkdown, + [QIBPORTCNTR_IBLINKERRRECOV] = cr_iblinkerrrecov, + [QIBPORTCNTR_LLI] = 0xffff, + [QIBPORTCNTR_PSINTERVAL] = 0xffff, + [QIBPORTCNTR_PSSTART] = 0xffff, + [QIBPORTCNTR_PSSTAT] = 0xffff, + [QIBPORTCNTR_VL15PKTDROP] = 0xffff, + [QIBPORTCNTR_ERRPKEY] = cr_errpkey, + [QIBPORTCNTR_KHDROVFL] = 0xffff, + }; + + if (reg >= ARRAY_SIZE(xlator)) { + qib_devinfo(ppd->dd->pcidev, + "Unimplemented portcounter %u\n", reg); + goto done; + } + creg = xlator[reg]; + + /* handle counters requests not implemented as chip counters */ + if (reg == QIBPORTCNTR_LLI) + ret = dd->cspec->lli_errs; + else if (reg == QIBPORTCNTR_EXCESSBUFOVFL) + ret = dd->cspec->overrun_thresh_errs; + else if (reg == QIBPORTCNTR_KHDROVFL) { + int i; + + /* sum over all kernel contexts */ + for (i = 0; i < dd->first_user_ctxt; i++) + ret += read_6120_creg32(dd, cr_portovfl + i); + } else if (reg == QIBPORTCNTR_PSSTAT) + ret = dd->cspec->pma_sample_status; + if (creg == 0xffff) + goto done; + + /* + * only fast incrementing counters are 64bit; use 32 bit reads to + * avoid two independent reads when on opteron + */ + if (creg == cr_wordsend || creg == cr_wordrcv || + creg == cr_pktsend || creg == cr_pktrcv) + ret = read_6120_creg(dd, creg); + else + ret = read_6120_creg32(dd, creg); + if (creg == cr_ibsymbolerr) { + if (dd->cspec->ibdeltainprog) + ret -= ret - dd->cspec->ibsymsnap; + ret -= dd->cspec->ibsymdelta; + } else if (creg == cr_iblinkerrrecov) { + if (dd->cspec->ibdeltainprog) + ret -= ret - dd->cspec->iblnkerrsnap; + ret -= dd->cspec->iblnkerrdelta; + } + if (reg == QIBPORTCNTR_RXDROPPKT) /* add special cased count */ + ret += dd->cspec->rxfc_unsupvl_errs; + +done: + return ret; +} + +/* + * Device counter names (not port-specific), one line per stat, + * single string. Used by utilities like ipathstats to print the stats + * in a way which works for different versions of drivers, without changing + * the utility. Names need to be 12 chars or less (w/o newline), for proper + * display by utility. + * Non-error counters are first. + * Start of "error" conters is indicated by a leading "E " on the first + * "error" counter, and doesn't count in label length. + * The EgrOvfl list needs to be last so we truncate them at the configured + * context count for the device. + * cntr6120indices contains the corresponding register indices. + */ +static const char cntr6120names[] = + "Interrupts\n" + "HostBusStall\n" + "E RxTIDFull\n" + "RxTIDInvalid\n" + "Ctxt0EgrOvfl\n" + "Ctxt1EgrOvfl\n" + "Ctxt2EgrOvfl\n" + "Ctxt3EgrOvfl\n" + "Ctxt4EgrOvfl\n"; + +static const size_t cntr6120indices[] = { + cr_lbint, + cr_lbflowstall, + cr_errtidfull, + cr_errtidvalid, + cr_portovfl + 0, + cr_portovfl + 1, + cr_portovfl + 2, + cr_portovfl + 3, + cr_portovfl + 4, +}; + +/* + * same as cntr6120names and cntr6120indices, but for port-specific counters. + * portcntr6120indices is somewhat complicated by some registers needing + * adjustments of various kinds, and those are ORed with _PORT_VIRT_FLAG + */ +static const char portcntr6120names[] = + "TxPkt\n" + "TxFlowPkt\n" + "TxWords\n" + "RxPkt\n" + "RxFlowPkt\n" + "RxWords\n" + "TxFlowStall\n" + "E IBStatusChng\n" + "IBLinkDown\n" + "IBLnkRecov\n" + "IBRxLinkErr\n" + "IBSymbolErr\n" + "RxLLIErr\n" + "RxBadFormat\n" + "RxBadLen\n" + "RxBufOvrfl\n" + "RxEBP\n" + "RxFlowCtlErr\n" + "RxICRCerr\n" + "RxLPCRCerr\n" + "RxVCRCerr\n" + "RxInvalLen\n" + "RxInvalPKey\n" + "RxPktDropped\n" + "TxBadLength\n" + "TxDropped\n" + "TxInvalLen\n" + "TxUnderrun\n" + "TxUnsupVL\n" + ; + +#define _PORT_VIRT_FLAG 0x8000 /* "virtual", need adjustments */ +static const size_t portcntr6120indices[] = { + QIBPORTCNTR_PKTSEND | _PORT_VIRT_FLAG, + cr_pktsendflow, + QIBPORTCNTR_WORDSEND | _PORT_VIRT_FLAG, + QIBPORTCNTR_PKTRCV | _PORT_VIRT_FLAG, + cr_pktrcvflowctrl, + QIBPORTCNTR_WORDRCV | _PORT_VIRT_FLAG, + QIBPORTCNTR_SENDSTALL | _PORT_VIRT_FLAG, + cr_ibstatuschange, + QIBPORTCNTR_IBLINKDOWN | _PORT_VIRT_FLAG, + QIBPORTCNTR_IBLINKERRRECOV | _PORT_VIRT_FLAG, + QIBPORTCNTR_ERRLINK | _PORT_VIRT_FLAG, + QIBPORTCNTR_IBSYMBOLERR | _PORT_VIRT_FLAG, + QIBPORTCNTR_LLI | _PORT_VIRT_FLAG, + QIBPORTCNTR_BADFORMAT | _PORT_VIRT_FLAG, + QIBPORTCNTR_ERR_RLEN | _PORT_VIRT_FLAG, + QIBPORTCNTR_RCVOVFL | _PORT_VIRT_FLAG, + QIBPORTCNTR_RCVEBP | _PORT_VIRT_FLAG, + cr_rcvflowctrl_err, + QIBPORTCNTR_ERRICRC | _PORT_VIRT_FLAG, + QIBPORTCNTR_ERRLPCRC | _PORT_VIRT_FLAG, + QIBPORTCNTR_ERRVCRC | _PORT_VIRT_FLAG, + QIBPORTCNTR_INVALIDRLEN | _PORT_VIRT_FLAG, + QIBPORTCNTR_ERRPKEY | _PORT_VIRT_FLAG, + QIBPORTCNTR_RXDROPPKT | _PORT_VIRT_FLAG, + cr_invalidslen, + cr_senddropped, + cr_errslen, + cr_sendunderrun, + cr_txunsupvl, +}; + +/* do all the setup to make the counter reads efficient later */ +static void init_6120_cntrnames(struct qib_devdata *dd) +{ + int i, j = 0; + char *s; + + for (i = 0, s = (char *)cntr6120names; s && j <= dd->cfgctxts; + i++) { + /* we always have at least one counter before the egrovfl */ + if (!j && !strncmp("Ctxt0EgrOvfl", s + 1, 12)) + j = 1; + s = strchr(s + 1, '\n'); + if (s && j) + j++; + } + dd->cspec->ncntrs = i; + if (!s) + /* full list; size is without terminating null */ + dd->cspec->cntrnamelen = sizeof(cntr6120names) - 1; + else + dd->cspec->cntrnamelen = 1 + s - cntr6120names; + dd->cspec->cntrs = kmalloc_array(dd->cspec->ncntrs, sizeof(u64), + GFP_KERNEL); + + for (i = 0, s = (char *)portcntr6120names; s; i++) + s = strchr(s + 1, '\n'); + dd->cspec->nportcntrs = i - 1; + dd->cspec->portcntrnamelen = sizeof(portcntr6120names) - 1; + dd->cspec->portcntrs = kmalloc_array(dd->cspec->nportcntrs, + sizeof(u64), + GFP_KERNEL); +} + +static u32 qib_read_6120cntrs(struct qib_devdata *dd, loff_t pos, char **namep, + u64 **cntrp) +{ + u32 ret; + + if (namep) { + ret = dd->cspec->cntrnamelen; + if (pos >= ret) + ret = 0; /* final read after getting everything */ + else + *namep = (char *)cntr6120names; + } else { + u64 *cntr = dd->cspec->cntrs; + int i; + + ret = dd->cspec->ncntrs * sizeof(u64); + if (!cntr || pos >= ret) { + /* everything read, or couldn't get memory */ + ret = 0; + goto done; + } + if (pos >= ret) { + ret = 0; /* final read after getting everything */ + goto done; + } + *cntrp = cntr; + for (i = 0; i < dd->cspec->ncntrs; i++) + *cntr++ = read_6120_creg32(dd, cntr6120indices[i]); + } +done: + return ret; +} + +static u32 qib_read_6120portcntrs(struct qib_devdata *dd, loff_t pos, u32 port, + char **namep, u64 **cntrp) +{ + u32 ret; + + if (namep) { + ret = dd->cspec->portcntrnamelen; + if (pos >= ret) + ret = 0; /* final read after getting everything */ + else + *namep = (char *)portcntr6120names; + } else { + u64 *cntr = dd->cspec->portcntrs; + struct qib_pportdata *ppd = &dd->pport[port]; + int i; + + ret = dd->cspec->nportcntrs * sizeof(u64); + if (!cntr || pos >= ret) { + /* everything read, or couldn't get memory */ + ret = 0; + goto done; + } + *cntrp = cntr; + for (i = 0; i < dd->cspec->nportcntrs; i++) { + if (portcntr6120indices[i] & _PORT_VIRT_FLAG) + *cntr++ = qib_portcntr_6120(ppd, + portcntr6120indices[i] & + ~_PORT_VIRT_FLAG); + else + *cntr++ = read_6120_creg32(dd, + portcntr6120indices[i]); + } + } +done: + return ret; +} + +static void qib_chk_6120_errormask(struct qib_devdata *dd) +{ + static u32 fixed; + u32 ctrl; + unsigned long errormask; + unsigned long hwerrs; + + if (!dd->cspec->errormask || !(dd->flags & QIB_INITTED)) + return; + + errormask = qib_read_kreg64(dd, kr_errmask); + + if (errormask == dd->cspec->errormask) + return; + fixed++; + + hwerrs = qib_read_kreg64(dd, kr_hwerrstatus); + ctrl = qib_read_kreg32(dd, kr_control); + + qib_write_kreg(dd, kr_errmask, + dd->cspec->errormask); + + if ((hwerrs & dd->cspec->hwerrmask) || + (ctrl & QLOGIC_IB_C_FREEZEMODE)) { + qib_write_kreg(dd, kr_hwerrclear, 0ULL); + qib_write_kreg(dd, kr_errclear, 0ULL); + /* force re-interrupt of pending events, just in case */ + qib_write_kreg(dd, kr_intclear, 0ULL); + qib_devinfo(dd->pcidev, + "errormask fixed(%u) %lx->%lx, ctrl %x hwerr %lx\n", + fixed, errormask, (unsigned long)dd->cspec->errormask, + ctrl, hwerrs); + } +} + +/** + * qib_get_6120_faststats - get word counters from chip before they overflow + * @t: contains a pointer to the qlogic_ib device qib_devdata + * + * This needs more work; in particular, decision on whether we really + * need traffic_wds done the way it is + * called from add_timer + */ +static void qib_get_6120_faststats(struct timer_list *t) +{ + struct qib_devdata *dd = from_timer(dd, t, stats_timer); + struct qib_pportdata *ppd = dd->pport; + unsigned long flags; + u64 traffic_wds; + + /* + * don't access the chip while running diags, or memory diags can + * fail + */ + if (!(dd->flags & QIB_INITTED) || dd->diag_client) + /* but re-arm the timer, for diags case; won't hurt other */ + goto done; + + /* + * We now try to maintain an activity timer, based on traffic + * exceeding a threshold, so we need to check the word-counts + * even if they are 64-bit. + */ + traffic_wds = qib_portcntr_6120(ppd, cr_wordsend) + + qib_portcntr_6120(ppd, cr_wordrcv); + spin_lock_irqsave(&dd->eep_st_lock, flags); + traffic_wds -= dd->traffic_wds; + dd->traffic_wds += traffic_wds; + spin_unlock_irqrestore(&dd->eep_st_lock, flags); + + qib_chk_6120_errormask(dd); +done: + mod_timer(&dd->stats_timer, jiffies + HZ * ACTIVITY_TIMER); +} + +/* no interrupt fallback for these chips */ +static int qib_6120_nointr_fallback(struct qib_devdata *dd) +{ + return 0; +} + +/* + * reset the XGXS (between serdes and IBC). Slightly less intrusive + * than resetting the IBC or external link state, and useful in some + * cases to cause some retraining. To do this right, we reset IBC + * as well. + */ +static void qib_6120_xgxs_reset(struct qib_pportdata *ppd) +{ + u64 val, prev_val; + struct qib_devdata *dd = ppd->dd; + + prev_val = qib_read_kreg64(dd, kr_xgxs_cfg); + val = prev_val | QLOGIC_IB_XGXS_RESET; + prev_val &= ~QLOGIC_IB_XGXS_RESET; /* be sure */ + qib_write_kreg(dd, kr_control, + dd->control & ~QLOGIC_IB_C_LINKENABLE); + qib_write_kreg(dd, kr_xgxs_cfg, val); + qib_read_kreg32(dd, kr_scratch); + qib_write_kreg(dd, kr_xgxs_cfg, prev_val); + qib_write_kreg(dd, kr_control, dd->control); +} + +static int qib_6120_get_ib_cfg(struct qib_pportdata *ppd, int which) +{ + int ret; + + switch (which) { + case QIB_IB_CFG_LWID: + ret = ppd->link_width_active; + break; + + case QIB_IB_CFG_SPD: + ret = ppd->link_speed_active; + break; + + case QIB_IB_CFG_LWID_ENB: + ret = ppd->link_width_enabled; + break; + + case QIB_IB_CFG_SPD_ENB: + ret = ppd->link_speed_enabled; + break; + + case QIB_IB_CFG_OP_VLS: + ret = ppd->vls_operational; + break; + + case QIB_IB_CFG_VL_HIGH_CAP: + ret = 0; + break; + + case QIB_IB_CFG_VL_LOW_CAP: + ret = 0; + break; + + case QIB_IB_CFG_OVERRUN_THRESH: /* IB overrun threshold */ + ret = SYM_FIELD(ppd->dd->cspec->ibcctrl, IBCCtrl, + OverrunThreshold); + break; + + case QIB_IB_CFG_PHYERR_THRESH: /* IB PHY error threshold */ + ret = SYM_FIELD(ppd->dd->cspec->ibcctrl, IBCCtrl, + PhyerrThreshold); + break; + + case QIB_IB_CFG_LINKDEFAULT: /* IB link default (sleep/poll) */ + /* will only take effect when the link state changes */ + ret = (ppd->dd->cspec->ibcctrl & + SYM_MASK(IBCCtrl, LinkDownDefaultState)) ? + IB_LINKINITCMD_SLEEP : IB_LINKINITCMD_POLL; + break; + + case QIB_IB_CFG_HRTBT: /* Get Heartbeat off/enable/auto */ + ret = 0; /* no heartbeat on this chip */ + break; + + case QIB_IB_CFG_PMA_TICKS: + ret = 250; /* 1 usec. */ + break; + + default: + ret = -EINVAL; + break; + } + return ret; +} + +/* + * We assume range checking is already done, if needed. + */ +static int qib_6120_set_ib_cfg(struct qib_pportdata *ppd, int which, u32 val) +{ + struct qib_devdata *dd = ppd->dd; + int ret = 0; + u64 val64; + u16 lcmd, licmd; + + switch (which) { + case QIB_IB_CFG_LWID_ENB: + ppd->link_width_enabled = val; + break; + + case QIB_IB_CFG_SPD_ENB: + ppd->link_speed_enabled = val; + break; + + case QIB_IB_CFG_OVERRUN_THRESH: /* IB overrun threshold */ + val64 = SYM_FIELD(dd->cspec->ibcctrl, IBCCtrl, + OverrunThreshold); + if (val64 != val) { + dd->cspec->ibcctrl &= + ~SYM_MASK(IBCCtrl, OverrunThreshold); + dd->cspec->ibcctrl |= (u64) val << + SYM_LSB(IBCCtrl, OverrunThreshold); + qib_write_kreg(dd, kr_ibcctrl, dd->cspec->ibcctrl); + qib_write_kreg(dd, kr_scratch, 0); + } + break; + + case QIB_IB_CFG_PHYERR_THRESH: /* IB PHY error threshold */ + val64 = SYM_FIELD(dd->cspec->ibcctrl, IBCCtrl, + PhyerrThreshold); + if (val64 != val) { + dd->cspec->ibcctrl &= + ~SYM_MASK(IBCCtrl, PhyerrThreshold); + dd->cspec->ibcctrl |= (u64) val << + SYM_LSB(IBCCtrl, PhyerrThreshold); + qib_write_kreg(dd, kr_ibcctrl, dd->cspec->ibcctrl); + qib_write_kreg(dd, kr_scratch, 0); + } + break; + + case QIB_IB_CFG_PKEYS: /* update pkeys */ + val64 = (u64) ppd->pkeys[0] | ((u64) ppd->pkeys[1] << 16) | + ((u64) ppd->pkeys[2] << 32) | + ((u64) ppd->pkeys[3] << 48); + qib_write_kreg(dd, kr_partitionkey, val64); + break; + + case QIB_IB_CFG_LINKDEFAULT: /* IB link default (sleep/poll) */ + /* will only take effect when the link state changes */ + if (val == IB_LINKINITCMD_POLL) + dd->cspec->ibcctrl &= + ~SYM_MASK(IBCCtrl, LinkDownDefaultState); + else /* SLEEP */ + dd->cspec->ibcctrl |= + SYM_MASK(IBCCtrl, LinkDownDefaultState); + qib_write_kreg(dd, kr_ibcctrl, dd->cspec->ibcctrl); + qib_write_kreg(dd, kr_scratch, 0); + break; + + case QIB_IB_CFG_MTU: /* update the MTU in IBC */ + /* + * Update our housekeeping variables, and set IBC max + * size, same as init code; max IBC is max we allow in + * buffer, less the qword pbc, plus 1 for ICRC, in dwords + * Set even if it's unchanged, print debug message only + * on changes. + */ + val = (ppd->ibmaxlen >> 2) + 1; + dd->cspec->ibcctrl &= ~SYM_MASK(IBCCtrl, MaxPktLen); + dd->cspec->ibcctrl |= (u64)val << + SYM_LSB(IBCCtrl, MaxPktLen); + qib_write_kreg(dd, kr_ibcctrl, dd->cspec->ibcctrl); + qib_write_kreg(dd, kr_scratch, 0); + break; + + case QIB_IB_CFG_LSTATE: /* set the IB link state */ + switch (val & 0xffff0000) { + case IB_LINKCMD_DOWN: + lcmd = QLOGIC_IB_IBCC_LINKCMD_DOWN; + if (!dd->cspec->ibdeltainprog) { + dd->cspec->ibdeltainprog = 1; + dd->cspec->ibsymsnap = + read_6120_creg32(dd, cr_ibsymbolerr); + dd->cspec->iblnkerrsnap = + read_6120_creg32(dd, cr_iblinkerrrecov); + } + break; + + case IB_LINKCMD_ARMED: + lcmd = QLOGIC_IB_IBCC_LINKCMD_ARMED; + break; + + case IB_LINKCMD_ACTIVE: + lcmd = QLOGIC_IB_IBCC_LINKCMD_ACTIVE; + break; + + default: + ret = -EINVAL; + qib_dev_err(dd, "bad linkcmd req 0x%x\n", val >> 16); + goto bail; + } + switch (val & 0xffff) { + case IB_LINKINITCMD_NOP: + licmd = 0; + break; + + case IB_LINKINITCMD_POLL: + licmd = QLOGIC_IB_IBCC_LINKINITCMD_POLL; + break; + + case IB_LINKINITCMD_SLEEP: + licmd = QLOGIC_IB_IBCC_LINKINITCMD_SLEEP; + break; + + case IB_LINKINITCMD_DISABLE: + licmd = QLOGIC_IB_IBCC_LINKINITCMD_DISABLE; + break; + + default: + ret = -EINVAL; + qib_dev_err(dd, "bad linkinitcmd req 0x%x\n", + val & 0xffff); + goto bail; + } + qib_set_ib_6120_lstate(ppd, lcmd, licmd); + goto bail; + + case QIB_IB_CFG_HRTBT: + ret = -EINVAL; + break; + + default: + ret = -EINVAL; + } +bail: + return ret; +} + +static int qib_6120_set_loopback(struct qib_pportdata *ppd, const char *what) +{ + int ret = 0; + + if (!strncmp(what, "ibc", 3)) { + ppd->dd->cspec->ibcctrl |= SYM_MASK(IBCCtrl, Loopback); + qib_devinfo(ppd->dd->pcidev, "Enabling IB%u:%u IBC loopback\n", + ppd->dd->unit, ppd->port); + } else if (!strncmp(what, "off", 3)) { + ppd->dd->cspec->ibcctrl &= ~SYM_MASK(IBCCtrl, Loopback); + qib_devinfo(ppd->dd->pcidev, + "Disabling IB%u:%u IBC loopback (normal)\n", + ppd->dd->unit, ppd->port); + } else + ret = -EINVAL; + if (!ret) { + qib_write_kreg(ppd->dd, kr_ibcctrl, ppd->dd->cspec->ibcctrl); + qib_write_kreg(ppd->dd, kr_scratch, 0); + } + return ret; +} + +static void pma_6120_timer(struct timer_list *t) +{ + struct qib_chip_specific *cs = from_timer(cs, t, pma_timer); + struct qib_pportdata *ppd = cs->ppd; + struct qib_ibport *ibp = &ppd->ibport_data; + unsigned long flags; + + spin_lock_irqsave(&ibp->rvp.lock, flags); + if (cs->pma_sample_status == IB_PMA_SAMPLE_STATUS_STARTED) { + cs->pma_sample_status = IB_PMA_SAMPLE_STATUS_RUNNING; + qib_snapshot_counters(ppd, &cs->sword, &cs->rword, + &cs->spkts, &cs->rpkts, &cs->xmit_wait); + mod_timer(&cs->pma_timer, + jiffies + usecs_to_jiffies(ibp->rvp.pma_sample_interval)); + } else if (cs->pma_sample_status == IB_PMA_SAMPLE_STATUS_RUNNING) { + u64 ta, tb, tc, td, te; + + cs->pma_sample_status = IB_PMA_SAMPLE_STATUS_DONE; + qib_snapshot_counters(ppd, &ta, &tb, &tc, &td, &te); + + cs->sword = ta - cs->sword; + cs->rword = tb - cs->rword; + cs->spkts = tc - cs->spkts; + cs->rpkts = td - cs->rpkts; + cs->xmit_wait = te - cs->xmit_wait; + } + spin_unlock_irqrestore(&ibp->rvp.lock, flags); +} + +/* + * Note that the caller has the ibp->rvp.lock held. + */ +static void qib_set_cntr_6120_sample(struct qib_pportdata *ppd, u32 intv, + u32 start) +{ + struct qib_chip_specific *cs = ppd->dd->cspec; + + if (start && intv) { + cs->pma_sample_status = IB_PMA_SAMPLE_STATUS_STARTED; + mod_timer(&cs->pma_timer, jiffies + usecs_to_jiffies(start)); + } else if (intv) { + cs->pma_sample_status = IB_PMA_SAMPLE_STATUS_RUNNING; + qib_snapshot_counters(ppd, &cs->sword, &cs->rword, + &cs->spkts, &cs->rpkts, &cs->xmit_wait); + mod_timer(&cs->pma_timer, jiffies + usecs_to_jiffies(intv)); + } else { + cs->pma_sample_status = IB_PMA_SAMPLE_STATUS_DONE; + cs->sword = 0; + cs->rword = 0; + cs->spkts = 0; + cs->rpkts = 0; + cs->xmit_wait = 0; + } +} + +static u32 qib_6120_iblink_state(u64 ibcs) +{ + u32 state = (u32)SYM_FIELD(ibcs, IBCStatus, LinkState); + + switch (state) { + case IB_6120_L_STATE_INIT: + state = IB_PORT_INIT; + break; + case IB_6120_L_STATE_ARM: + state = IB_PORT_ARMED; + break; + case IB_6120_L_STATE_ACTIVE: + case IB_6120_L_STATE_ACT_DEFER: + state = IB_PORT_ACTIVE; + break; + default: + fallthrough; + case IB_6120_L_STATE_DOWN: + state = IB_PORT_DOWN; + break; + } + return state; +} + +/* returns the IBTA port state, rather than the IBC link training state */ +static u8 qib_6120_phys_portstate(u64 ibcs) +{ + u8 state = (u8)SYM_FIELD(ibcs, IBCStatus, LinkTrainingState); + return qib_6120_physportstate[state]; +} + +static int qib_6120_ib_updown(struct qib_pportdata *ppd, int ibup, u64 ibcs) +{ + unsigned long flags; + + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~QIBL_IB_FORCE_NOTIFY; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + + if (ibup) { + if (ppd->dd->cspec->ibdeltainprog) { + ppd->dd->cspec->ibdeltainprog = 0; + ppd->dd->cspec->ibsymdelta += + read_6120_creg32(ppd->dd, cr_ibsymbolerr) - + ppd->dd->cspec->ibsymsnap; + ppd->dd->cspec->iblnkerrdelta += + read_6120_creg32(ppd->dd, cr_iblinkerrrecov) - + ppd->dd->cspec->iblnkerrsnap; + } + qib_hol_init(ppd); + } else { + ppd->dd->cspec->lli_counter = 0; + if (!ppd->dd->cspec->ibdeltainprog) { + ppd->dd->cspec->ibdeltainprog = 1; + ppd->dd->cspec->ibsymsnap = + read_6120_creg32(ppd->dd, cr_ibsymbolerr); + ppd->dd->cspec->iblnkerrsnap = + read_6120_creg32(ppd->dd, cr_iblinkerrrecov); + } + qib_hol_down(ppd); + } + + qib_6120_setup_setextled(ppd, ibup); + + return 0; +} + +/* Does read/modify/write to appropriate registers to + * set output and direction bits selected by mask. + * these are in their canonical positions (e.g. lsb of + * dir will end up in D48 of extctrl on existing chips). + * returns contents of GP Inputs. + */ +static int gpio_6120_mod(struct qib_devdata *dd, u32 out, u32 dir, u32 mask) +{ + u64 read_val, new_out; + unsigned long flags; + + if (mask) { + /* some bits being written, lock access to GPIO */ + dir &= mask; + out &= mask; + spin_lock_irqsave(&dd->cspec->gpio_lock, flags); + dd->cspec->extctrl &= ~((u64)mask << SYM_LSB(EXTCtrl, GPIOOe)); + dd->cspec->extctrl |= ((u64) dir << SYM_LSB(EXTCtrl, GPIOOe)); + new_out = (dd->cspec->gpio_out & ~mask) | out; + + qib_write_kreg(dd, kr_extctrl, dd->cspec->extctrl); + qib_write_kreg(dd, kr_gpio_out, new_out); + dd->cspec->gpio_out = new_out; + spin_unlock_irqrestore(&dd->cspec->gpio_lock, flags); + } + /* + * It is unlikely that a read at this time would get valid + * data on a pin whose direction line was set in the same + * call to this function. We include the read here because + * that allows us to potentially combine a change on one pin with + * a read on another, and because the old code did something like + * this. + */ + read_val = qib_read_kreg64(dd, kr_extstatus); + return SYM_FIELD(read_val, EXTStatus, GPIOIn); +} + +/* + * Read fundamental info we need to use the chip. These are + * the registers that describe chip capabilities, and are + * saved in shadow registers. + */ +static void get_6120_chip_params(struct qib_devdata *dd) +{ + u64 val; + u32 piobufs; + int mtu; + + dd->uregbase = qib_read_kreg32(dd, kr_userregbase); + + dd->rcvtidcnt = qib_read_kreg32(dd, kr_rcvtidcnt); + dd->rcvtidbase = qib_read_kreg32(dd, kr_rcvtidbase); + dd->rcvegrbase = qib_read_kreg32(dd, kr_rcvegrbase); + dd->palign = qib_read_kreg32(dd, kr_palign); + dd->piobufbase = qib_read_kreg64(dd, kr_sendpiobufbase); + dd->pio2k_bufbase = dd->piobufbase & 0xffffffff; + + dd->rcvhdrcnt = qib_read_kreg32(dd, kr_rcvegrcnt); + + val = qib_read_kreg64(dd, kr_sendpiosize); + dd->piosize2k = val & ~0U; + dd->piosize4k = val >> 32; + + mtu = ib_mtu_enum_to_int(qib_ibmtu); + if (mtu == -1) + mtu = QIB_DEFAULT_MTU; + dd->pport->ibmtu = (u32)mtu; + + val = qib_read_kreg64(dd, kr_sendpiobufcnt); + dd->piobcnt2k = val & ~0U; + dd->piobcnt4k = val >> 32; + dd->last_pio = dd->piobcnt4k + dd->piobcnt2k - 1; + /* these may be adjusted in init_chip_wc_pat() */ + dd->pio2kbase = (u32 __iomem *) + (((char __iomem *)dd->kregbase) + dd->pio2k_bufbase); + if (dd->piobcnt4k) { + dd->pio4kbase = (u32 __iomem *) + (((char __iomem *) dd->kregbase) + + (dd->piobufbase >> 32)); + /* + * 4K buffers take 2 pages; we use roundup just to be + * paranoid; we calculate it once here, rather than on + * ever buf allocate + */ + dd->align4k = ALIGN(dd->piosize4k, dd->palign); + } + + piobufs = dd->piobcnt4k + dd->piobcnt2k; + + dd->pioavregs = ALIGN(piobufs, sizeof(u64) * BITS_PER_BYTE / 2) / + (sizeof(u64) * BITS_PER_BYTE / 2); +} + +/* + * The chip base addresses in cspec and cpspec have to be set + * after possible init_chip_wc_pat(), rather than in + * get_6120_chip_params(), so split out as separate function + */ +static void set_6120_baseaddrs(struct qib_devdata *dd) +{ + u32 cregbase; + + cregbase = qib_read_kreg32(dd, kr_counterregbase); + dd->cspec->cregbase = (u64 __iomem *) + ((char __iomem *) dd->kregbase + cregbase); + + dd->egrtidbase = (u64 __iomem *) + ((char __iomem *) dd->kregbase + dd->rcvegrbase); +} + +/* + * Write the final few registers that depend on some of the + * init setup. Done late in init, just before bringing up + * the serdes. + */ +static int qib_late_6120_initreg(struct qib_devdata *dd) +{ + int ret = 0; + u64 val; + + qib_write_kreg(dd, kr_rcvhdrentsize, dd->rcvhdrentsize); + qib_write_kreg(dd, kr_rcvhdrsize, dd->rcvhdrsize); + qib_write_kreg(dd, kr_rcvhdrcnt, dd->rcvhdrcnt); + qib_write_kreg(dd, kr_sendpioavailaddr, dd->pioavailregs_phys); + val = qib_read_kreg64(dd, kr_sendpioavailaddr); + if (val != dd->pioavailregs_phys) { + qib_dev_err(dd, + "Catastrophic software error, SendPIOAvailAddr written as %lx, read back as %llx\n", + (unsigned long) dd->pioavailregs_phys, + (unsigned long long) val); + ret = -EINVAL; + } + return ret; +} + +static int init_6120_variables(struct qib_devdata *dd) +{ + int ret = 0; + struct qib_pportdata *ppd; + u32 sbufs; + + ppd = (struct qib_pportdata *)(dd + 1); + dd->pport = ppd; + dd->num_pports = 1; + + dd->cspec = (struct qib_chip_specific *)(ppd + dd->num_pports); + dd->cspec->ppd = ppd; + ppd->cpspec = NULL; /* not used in this chip */ + + spin_lock_init(&dd->cspec->kernel_tid_lock); + spin_lock_init(&dd->cspec->user_tid_lock); + spin_lock_init(&dd->cspec->rcvmod_lock); + spin_lock_init(&dd->cspec->gpio_lock); + + /* we haven't yet set QIB_PRESENT, so use read directly */ + dd->revision = readq(&dd->kregbase[kr_revision]); + + if ((dd->revision & 0xffffffffU) == 0xffffffffU) { + qib_dev_err(dd, + "Revision register read failure, giving up initialization\n"); + ret = -ENODEV; + goto bail; + } + dd->flags |= QIB_PRESENT; /* now register routines work */ + + dd->majrev = (u8) SYM_FIELD(dd->revision, Revision_R, + ChipRevMajor); + dd->minrev = (u8) SYM_FIELD(dd->revision, Revision_R, + ChipRevMinor); + + get_6120_chip_params(dd); + pe_boardname(dd); /* fill in boardname */ + + /* + * GPIO bits for TWSI data and clock, + * used for serial EEPROM. + */ + dd->gpio_sda_num = _QIB_GPIO_SDA_NUM; + dd->gpio_scl_num = _QIB_GPIO_SCL_NUM; + dd->twsi_eeprom_dev = QIB_TWSI_NO_DEV; + + if (qib_unordered_wc()) + dd->flags |= QIB_PIO_FLUSH_WC; + + ret = qib_init_pportdata(ppd, dd, 0, 1); + if (ret) + goto bail; + ppd->link_width_supported = IB_WIDTH_1X | IB_WIDTH_4X; + ppd->link_speed_supported = QIB_IB_SDR; + ppd->link_width_enabled = IB_WIDTH_4X; + ppd->link_speed_enabled = ppd->link_speed_supported; + /* these can't change for this chip, so set once */ + ppd->link_width_active = ppd->link_width_enabled; + ppd->link_speed_active = ppd->link_speed_enabled; + ppd->vls_supported = IB_VL_VL0; + ppd->vls_operational = ppd->vls_supported; + + dd->rcvhdrentsize = QIB_RCVHDR_ENTSIZE; + dd->rcvhdrsize = QIB_DFLT_RCVHDRSIZE; + dd->rhf_offset = 0; + + /* we always allocate at least 2048 bytes for eager buffers */ + ret = ib_mtu_enum_to_int(qib_ibmtu); + dd->rcvegrbufsize = ret != -1 ? max(ret, 2048) : QIB_DEFAULT_MTU; + dd->rcvegrbufsize_shift = ilog2(dd->rcvegrbufsize); + + qib_6120_tidtemplate(dd); + + /* + * We can request a receive interrupt for 1 or + * more packets from current offset. For now, we set this + * up for a single packet. + */ + dd->rhdrhead_intr_off = 1ULL << 32; + + /* setup the stats timer; the add_timer is done at end of init */ + timer_setup(&dd->stats_timer, qib_get_6120_faststats, 0); + timer_setup(&dd->cspec->pma_timer, pma_6120_timer, 0); + + dd->ureg_align = qib_read_kreg32(dd, kr_palign); + + dd->piosize2kmax_dwords = dd->piosize2k >> 2; + qib_6120_config_ctxts(dd); + qib_set_ctxtcnt(dd); + + ret = init_chip_wc_pat(dd, 0); + if (ret) + goto bail; + set_6120_baseaddrs(dd); /* set chip access pointers now */ + + ret = 0; + if (qib_mini_init) + goto bail; + + qib_num_cfg_vls = 1; /* if any 6120's, only one VL */ + + ret = qib_create_ctxts(dd); + init_6120_cntrnames(dd); + + /* use all of 4KB buffers for the kernel, otherwise 16 */ + sbufs = dd->piobcnt4k ? dd->piobcnt4k : 16; + + dd->lastctxt_piobuf = dd->piobcnt2k + dd->piobcnt4k - sbufs; + dd->pbufsctxt = dd->lastctxt_piobuf / + (dd->cfgctxts - dd->first_user_ctxt); + + if (ret) + goto bail; +bail: + return ret; +} + +/* + * For this chip, we want to use the same buffer every time + * when we are trying to bring the link up (they are always VL15 + * packets). At that link state the packet should always go out immediately + * (or at least be discarded at the tx interface if the link is down). + * If it doesn't, and the buffer isn't available, that means some other + * sender has gotten ahead of us, and is preventing our packet from going + * out. In that case, we flush all packets, and try again. If that still + * fails, we fail the request, and hope things work the next time around. + * + * We don't need very complicated heuristics on whether the packet had + * time to go out or not, since even at SDR 1X, it goes out in very short + * time periods, covered by the chip reads done here and as part of the + * flush. + */ +static u32 __iomem *get_6120_link_buf(struct qib_pportdata *ppd, u32 *bnum) +{ + u32 __iomem *buf; + u32 lbuf = ppd->dd->piobcnt2k + ppd->dd->piobcnt4k - 1; + + /* + * always blip to get avail list updated, since it's almost + * always needed, and is fairly cheap. + */ + sendctrl_6120_mod(ppd->dd->pport, QIB_SENDCTRL_AVAIL_BLIP); + qib_read_kreg64(ppd->dd, kr_scratch); /* extra chip flush */ + buf = qib_getsendbuf_range(ppd->dd, bnum, lbuf, lbuf); + if (buf) + goto done; + + sendctrl_6120_mod(ppd, QIB_SENDCTRL_DISARM_ALL | QIB_SENDCTRL_FLUSH | + QIB_SENDCTRL_AVAIL_BLIP); + ppd->dd->upd_pio_shadow = 1; /* update our idea of what's busy */ + qib_read_kreg64(ppd->dd, kr_scratch); /* extra chip flush */ + buf = qib_getsendbuf_range(ppd->dd, bnum, lbuf, lbuf); +done: + return buf; +} + +static u32 __iomem *qib_6120_getsendbuf(struct qib_pportdata *ppd, u64 pbc, + u32 *pbufnum) +{ + u32 first, last, plen = pbc & QIB_PBC_LENGTH_MASK; + struct qib_devdata *dd = ppd->dd; + u32 __iomem *buf; + + if (((pbc >> 32) & PBC_6120_VL15_SEND_CTRL) && + !(ppd->lflags & (QIBL_IB_AUTONEG_INPROG | QIBL_LINKACTIVE))) + buf = get_6120_link_buf(ppd, pbufnum); + else { + + if ((plen + 1) > dd->piosize2kmax_dwords) + first = dd->piobcnt2k; + else + first = 0; + /* try 4k if all 2k busy, so same last for both sizes */ + last = dd->piobcnt2k + dd->piobcnt4k - 1; + buf = qib_getsendbuf_range(dd, pbufnum, first, last); + } + return buf; +} + +static int init_sdma_6120_regs(struct qib_pportdata *ppd) +{ + return -ENODEV; +} + +static u16 qib_sdma_6120_gethead(struct qib_pportdata *ppd) +{ + return 0; +} + +static int qib_sdma_6120_busy(struct qib_pportdata *ppd) +{ + return 0; +} + +static void qib_sdma_update_6120_tail(struct qib_pportdata *ppd, u16 tail) +{ +} + +static void qib_6120_sdma_sendctrl(struct qib_pportdata *ppd, unsigned op) +{ +} + +static void qib_sdma_set_6120_desc_cnt(struct qib_pportdata *ppd, unsigned cnt) +{ +} + +/* + * the pbc doesn't need a VL15 indicator, but we need it for link_buf. + * The chip ignores the bit if set. + */ +static u32 qib_6120_setpbc_control(struct qib_pportdata *ppd, u32 plen, + u8 srate, u8 vl) +{ + return vl == 15 ? PBC_6120_VL15_SEND_CTRL : 0; +} + +static void qib_6120_initvl15_bufs(struct qib_devdata *dd) +{ +} + +static void qib_6120_init_ctxt(struct qib_ctxtdata *rcd) +{ + rcd->rcvegrcnt = rcd->dd->rcvhdrcnt; + rcd->rcvegr_tid_base = rcd->ctxt * rcd->rcvegrcnt; +} + +static void qib_6120_txchk_change(struct qib_devdata *dd, u32 start, + u32 len, u32 avail, struct qib_ctxtdata *rcd) +{ +} + +static void writescratch(struct qib_devdata *dd, u32 val) +{ + (void) qib_write_kreg(dd, kr_scratch, val); +} + +static int qib_6120_tempsense_rd(struct qib_devdata *dd, int regnum) +{ + return -ENXIO; +} + +#ifdef CONFIG_INFINIBAND_QIB_DCA +static int qib_6120_notify_dca(struct qib_devdata *dd, unsigned long event) +{ + return 0; +} +#endif + +/* Dummy function, as 6120 boards never disable EEPROM Write */ +static int qib_6120_eeprom_wen(struct qib_devdata *dd, int wen) +{ + return 1; +} + +/** + * qib_init_iba6120_funcs - set up the chip-specific function pointers + * @pdev: pci_dev of the qlogic_ib device + * @ent: pci_device_id matching this chip + * + * This is global, and is called directly at init to set up the + * chip-specific function pointers for later use. + * + * It also allocates/partially-inits the qib_devdata struct for + * this device. + */ +struct qib_devdata *qib_init_iba6120_funcs(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct qib_devdata *dd; + int ret; + + dd = qib_alloc_devdata(pdev, sizeof(struct qib_pportdata) + + sizeof(struct qib_chip_specific)); + if (IS_ERR(dd)) + goto bail; + + dd->f_bringup_serdes = qib_6120_bringup_serdes; + dd->f_cleanup = qib_6120_setup_cleanup; + dd->f_clear_tids = qib_6120_clear_tids; + dd->f_free_irq = qib_free_irq; + dd->f_get_base_info = qib_6120_get_base_info; + dd->f_get_msgheader = qib_6120_get_msgheader; + dd->f_getsendbuf = qib_6120_getsendbuf; + dd->f_gpio_mod = gpio_6120_mod; + dd->f_eeprom_wen = qib_6120_eeprom_wen; + dd->f_hdrqempty = qib_6120_hdrqempty; + dd->f_ib_updown = qib_6120_ib_updown; + dd->f_init_ctxt = qib_6120_init_ctxt; + dd->f_initvl15_bufs = qib_6120_initvl15_bufs; + dd->f_intr_fallback = qib_6120_nointr_fallback; + dd->f_late_initreg = qib_late_6120_initreg; + dd->f_setpbc_control = qib_6120_setpbc_control; + dd->f_portcntr = qib_portcntr_6120; + dd->f_put_tid = (dd->minrev >= 2) ? + qib_6120_put_tid_2 : + qib_6120_put_tid; + dd->f_quiet_serdes = qib_6120_quiet_serdes; + dd->f_rcvctrl = rcvctrl_6120_mod; + dd->f_read_cntrs = qib_read_6120cntrs; + dd->f_read_portcntrs = qib_read_6120portcntrs; + dd->f_reset = qib_6120_setup_reset; + dd->f_init_sdma_regs = init_sdma_6120_regs; + dd->f_sdma_busy = qib_sdma_6120_busy; + dd->f_sdma_gethead = qib_sdma_6120_gethead; + dd->f_sdma_sendctrl = qib_6120_sdma_sendctrl; + dd->f_sdma_set_desc_cnt = qib_sdma_set_6120_desc_cnt; + dd->f_sdma_update_tail = qib_sdma_update_6120_tail; + dd->f_sendctrl = sendctrl_6120_mod; + dd->f_set_armlaunch = qib_set_6120_armlaunch; + dd->f_set_cntr_sample = qib_set_cntr_6120_sample; + dd->f_iblink_state = qib_6120_iblink_state; + dd->f_ibphys_portstate = qib_6120_phys_portstate; + dd->f_get_ib_cfg = qib_6120_get_ib_cfg; + dd->f_set_ib_cfg = qib_6120_set_ib_cfg; + dd->f_set_ib_loopback = qib_6120_set_loopback; + dd->f_set_intr_state = qib_6120_set_intr_state; + dd->f_setextled = qib_6120_setup_setextled; + dd->f_txchk_change = qib_6120_txchk_change; + dd->f_update_usrhead = qib_update_6120_usrhead; + dd->f_wantpiobuf_intr = qib_wantpiobuf_6120_intr; + dd->f_xgxs_reset = qib_6120_xgxs_reset; + dd->f_writescratch = writescratch; + dd->f_tempsense_rd = qib_6120_tempsense_rd; +#ifdef CONFIG_INFINIBAND_QIB_DCA + dd->f_notify_dca = qib_6120_notify_dca; +#endif + /* + * Do remaining pcie setup and save pcie values in dd. + * Any error printing is already done by the init code. + * On return, we have the chip mapped and accessible, + * but chip registers are not set up until start of + * init_6120_variables. + */ + ret = qib_pcie_ddinit(dd, pdev, ent); + if (ret < 0) + goto bail_free; + + /* initialize chip-specific variables */ + ret = init_6120_variables(dd); + if (ret) + goto bail_cleanup; + + if (qib_mini_init) + goto bail; + + if (qib_pcie_params(dd, 8, NULL)) + qib_dev_err(dd, + "Failed to setup PCIe or interrupts; continuing anyway\n"); + /* clear diagctrl register, in case diags were running and crashed */ + qib_write_kreg(dd, kr_hwdiagctrl, 0); + + if (qib_read_kreg64(dd, kr_hwerrstatus) & + QLOGIC_IB_HWE_SERDESPLLFAILED) + qib_write_kreg(dd, kr_hwerrclear, + QLOGIC_IB_HWE_SERDESPLLFAILED); + + /* setup interrupt handler (interrupt type handled above) */ + qib_setup_6120_interrupt(dd); + /* Note that qpn_mask is set by qib_6120_config_ctxts() first */ + qib_6120_init_hwerrors(dd); + + goto bail; + +bail_cleanup: + qib_pcie_ddcleanup(dd); +bail_free: + qib_free_devdata(dd); + dd = ERR_PTR(ret); +bail: + return dd; +} diff --git a/drivers/infiniband/hw/qib/qib_iba7220.c b/drivers/infiniband/hw/qib/qib_iba7220.c new file mode 100644 index 000000000..6af57067c --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_iba7220.c @@ -0,0 +1,4596 @@ +/* + * Copyright (c) 2011 - 2017 Intel Corporation. All rights reserved. + * Copyright (c) 2006, 2007, 2008, 2009, 2010 QLogic Corporation. + * All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +/* + * This file contains all of the code that is specific to the + * QLogic_IB 7220 chip (except that specific to the SerDes) + */ + +#include <linux/interrupt.h> +#include <linux/pci.h> +#include <linux/delay.h> +#include <linux/module.h> +#include <linux/io.h> +#include <rdma/ib_verbs.h> + +#include "qib.h" +#include "qib_7220.h" + +static void qib_setup_7220_setextled(struct qib_pportdata *, u32); +static void qib_7220_handle_hwerrors(struct qib_devdata *, char *, size_t); +static void sendctrl_7220_mod(struct qib_pportdata *ppd, u32 op); +static u32 qib_7220_iblink_state(u64); +static u8 qib_7220_phys_portstate(u64); +static void qib_sdma_update_7220_tail(struct qib_pportdata *, u16); +static void qib_set_ib_7220_lstate(struct qib_pportdata *, u16, u16); + +/* + * This file contains almost all the chip-specific register information and + * access functions for the QLogic QLogic_IB 7220 PCI-Express chip, with the + * exception of SerDes support, which in qib_sd7220.c. + */ + +/* Below uses machine-generated qib_chipnum_regs.h file */ +#define KREG_IDX(regname) (QIB_7220_##regname##_OFFS / sizeof(u64)) + +/* Use defines to tie machine-generated names to lower-case names */ +#define kr_control KREG_IDX(Control) +#define kr_counterregbase KREG_IDX(CntrRegBase) +#define kr_errclear KREG_IDX(ErrClear) +#define kr_errmask KREG_IDX(ErrMask) +#define kr_errstatus KREG_IDX(ErrStatus) +#define kr_extctrl KREG_IDX(EXTCtrl) +#define kr_extstatus KREG_IDX(EXTStatus) +#define kr_gpio_clear KREG_IDX(GPIOClear) +#define kr_gpio_mask KREG_IDX(GPIOMask) +#define kr_gpio_out KREG_IDX(GPIOOut) +#define kr_gpio_status KREG_IDX(GPIOStatus) +#define kr_hrtbt_guid KREG_IDX(HRTBT_GUID) +#define kr_hwdiagctrl KREG_IDX(HwDiagCtrl) +#define kr_hwerrclear KREG_IDX(HwErrClear) +#define kr_hwerrmask KREG_IDX(HwErrMask) +#define kr_hwerrstatus KREG_IDX(HwErrStatus) +#define kr_ibcctrl KREG_IDX(IBCCtrl) +#define kr_ibcddrctrl KREG_IDX(IBCDDRCtrl) +#define kr_ibcddrstatus KREG_IDX(IBCDDRStatus) +#define kr_ibcstatus KREG_IDX(IBCStatus) +#define kr_ibserdesctrl KREG_IDX(IBSerDesCtrl) +#define kr_intclear KREG_IDX(IntClear) +#define kr_intmask KREG_IDX(IntMask) +#define kr_intstatus KREG_IDX(IntStatus) +#define kr_ncmodectrl KREG_IDX(IBNCModeCtrl) +#define kr_palign KREG_IDX(PageAlign) +#define kr_partitionkey KREG_IDX(RcvPartitionKey) +#define kr_portcnt KREG_IDX(PortCnt) +#define kr_rcvbthqp KREG_IDX(RcvBTHQP) +#define kr_rcvctrl KREG_IDX(RcvCtrl) +#define kr_rcvegrbase KREG_IDX(RcvEgrBase) +#define kr_rcvegrcnt KREG_IDX(RcvEgrCnt) +#define kr_rcvhdrcnt KREG_IDX(RcvHdrCnt) +#define kr_rcvhdrentsize KREG_IDX(RcvHdrEntSize) +#define kr_rcvhdrsize KREG_IDX(RcvHdrSize) +#define kr_rcvpktledcnt KREG_IDX(RcvPktLEDCnt) +#define kr_rcvtidbase KREG_IDX(RcvTIDBase) +#define kr_rcvtidcnt KREG_IDX(RcvTIDCnt) +#define kr_revision KREG_IDX(Revision) +#define kr_scratch KREG_IDX(Scratch) +#define kr_sendbuffererror KREG_IDX(SendBufErr0) +#define kr_sendctrl KREG_IDX(SendCtrl) +#define kr_senddmabase KREG_IDX(SendDmaBase) +#define kr_senddmabufmask0 KREG_IDX(SendDmaBufMask0) +#define kr_senddmabufmask1 (KREG_IDX(SendDmaBufMask0) + 1) +#define kr_senddmabufmask2 (KREG_IDX(SendDmaBufMask0) + 2) +#define kr_senddmahead KREG_IDX(SendDmaHead) +#define kr_senddmaheadaddr KREG_IDX(SendDmaHeadAddr) +#define kr_senddmalengen KREG_IDX(SendDmaLenGen) +#define kr_senddmastatus KREG_IDX(SendDmaStatus) +#define kr_senddmatail KREG_IDX(SendDmaTail) +#define kr_sendpioavailaddr KREG_IDX(SendBufAvailAddr) +#define kr_sendpiobufbase KREG_IDX(SendBufBase) +#define kr_sendpiobufcnt KREG_IDX(SendBufCnt) +#define kr_sendpiosize KREG_IDX(SendBufSize) +#define kr_sendregbase KREG_IDX(SendRegBase) +#define kr_userregbase KREG_IDX(UserRegBase) +#define kr_xgxs_cfg KREG_IDX(XGXSCfg) + +/* These must only be written via qib_write_kreg_ctxt() */ +#define kr_rcvhdraddr KREG_IDX(RcvHdrAddr0) +#define kr_rcvhdrtailaddr KREG_IDX(RcvHdrTailAddr0) + + +#define CREG_IDX(regname) ((QIB_7220_##regname##_OFFS - \ + QIB_7220_LBIntCnt_OFFS) / sizeof(u64)) + +#define cr_badformat CREG_IDX(RxVersionErrCnt) +#define cr_erricrc CREG_IDX(RxICRCErrCnt) +#define cr_errlink CREG_IDX(RxLinkMalformCnt) +#define cr_errlpcrc CREG_IDX(RxLPCRCErrCnt) +#define cr_errpkey CREG_IDX(RxPKeyMismatchCnt) +#define cr_rcvflowctrl_err CREG_IDX(RxFlowCtrlViolCnt) +#define cr_err_rlen CREG_IDX(RxLenErrCnt) +#define cr_errslen CREG_IDX(TxLenErrCnt) +#define cr_errtidfull CREG_IDX(RxTIDFullErrCnt) +#define cr_errtidvalid CREG_IDX(RxTIDValidErrCnt) +#define cr_errvcrc CREG_IDX(RxVCRCErrCnt) +#define cr_ibstatuschange CREG_IDX(IBStatusChangeCnt) +#define cr_lbint CREG_IDX(LBIntCnt) +#define cr_invalidrlen CREG_IDX(RxMaxMinLenErrCnt) +#define cr_invalidslen CREG_IDX(TxMaxMinLenErrCnt) +#define cr_lbflowstall CREG_IDX(LBFlowStallCnt) +#define cr_pktrcv CREG_IDX(RxDataPktCnt) +#define cr_pktrcvflowctrl CREG_IDX(RxFlowPktCnt) +#define cr_pktsend CREG_IDX(TxDataPktCnt) +#define cr_pktsendflow CREG_IDX(TxFlowPktCnt) +#define cr_portovfl CREG_IDX(RxP0HdrEgrOvflCnt) +#define cr_rcvebp CREG_IDX(RxEBPCnt) +#define cr_rcvovfl CREG_IDX(RxBufOvflCnt) +#define cr_senddropped CREG_IDX(TxDroppedPktCnt) +#define cr_sendstall CREG_IDX(TxFlowStallCnt) +#define cr_sendunderrun CREG_IDX(TxUnderrunCnt) +#define cr_wordrcv CREG_IDX(RxDwordCnt) +#define cr_wordsend CREG_IDX(TxDwordCnt) +#define cr_txunsupvl CREG_IDX(TxUnsupVLErrCnt) +#define cr_rxdroppkt CREG_IDX(RxDroppedPktCnt) +#define cr_iblinkerrrecov CREG_IDX(IBLinkErrRecoveryCnt) +#define cr_iblinkdown CREG_IDX(IBLinkDownedCnt) +#define cr_ibsymbolerr CREG_IDX(IBSymbolErrCnt) +#define cr_vl15droppedpkt CREG_IDX(RxVL15DroppedPktCnt) +#define cr_rxotherlocalphyerr CREG_IDX(RxOtherLocalPhyErrCnt) +#define cr_excessbufferovfl CREG_IDX(ExcessBufferOvflCnt) +#define cr_locallinkintegrityerr CREG_IDX(LocalLinkIntegrityErrCnt) +#define cr_rxvlerr CREG_IDX(RxVlErrCnt) +#define cr_rxdlidfltr CREG_IDX(RxDlidFltrCnt) +#define cr_psstat CREG_IDX(PSStat) +#define cr_psstart CREG_IDX(PSStart) +#define cr_psinterval CREG_IDX(PSInterval) +#define cr_psrcvdatacount CREG_IDX(PSRcvDataCount) +#define cr_psrcvpktscount CREG_IDX(PSRcvPktsCount) +#define cr_psxmitdatacount CREG_IDX(PSXmitDataCount) +#define cr_psxmitpktscount CREG_IDX(PSXmitPktsCount) +#define cr_psxmitwaitcount CREG_IDX(PSXmitWaitCount) +#define cr_txsdmadesc CREG_IDX(TxSDmaDescCnt) +#define cr_pcieretrydiag CREG_IDX(PcieRetryBufDiagQwordCnt) + +#define SYM_RMASK(regname, fldname) ((u64) \ + QIB_7220_##regname##_##fldname##_RMASK) +#define SYM_MASK(regname, fldname) ((u64) \ + QIB_7220_##regname##_##fldname##_RMASK << \ + QIB_7220_##regname##_##fldname##_LSB) +#define SYM_LSB(regname, fldname) (QIB_7220_##regname##_##fldname##_LSB) +#define SYM_FIELD(value, regname, fldname) ((u64) \ + (((value) >> SYM_LSB(regname, fldname)) & \ + SYM_RMASK(regname, fldname))) +#define ERR_MASK(fldname) SYM_MASK(ErrMask, fldname##Mask) +#define HWE_MASK(fldname) SYM_MASK(HwErrMask, fldname##Mask) + +/* ibcctrl bits */ +#define QLOGIC_IB_IBCC_LINKINITCMD_DISABLE 1 +/* cycle through TS1/TS2 till OK */ +#define QLOGIC_IB_IBCC_LINKINITCMD_POLL 2 +/* wait for TS1, then go on */ +#define QLOGIC_IB_IBCC_LINKINITCMD_SLEEP 3 +#define QLOGIC_IB_IBCC_LINKINITCMD_SHIFT 16 + +#define QLOGIC_IB_IBCC_LINKCMD_DOWN 1 /* move to 0x11 */ +#define QLOGIC_IB_IBCC_LINKCMD_ARMED 2 /* move to 0x21 */ +#define QLOGIC_IB_IBCC_LINKCMD_ACTIVE 3 /* move to 0x31 */ + +#define BLOB_7220_IBCHG 0x81 + +/* + * We could have a single register get/put routine, that takes a group type, + * but this is somewhat clearer and cleaner. It also gives us some error + * checking. 64 bit register reads should always work, but are inefficient + * on opteron (the northbridge always generates 2 separate HT 32 bit reads), + * so we use kreg32 wherever possible. User register and counter register + * reads are always 32 bit reads, so only one form of those routines. + */ + +/** + * qib_read_ureg32 - read 32-bit virtualized per-context register + * @dd: device + * @regno: register number + * @ctxt: context number + * + * Return the contents of a register that is virtualized to be per context. + * Returns -1 on errors (not distinguishable from valid contents at + * runtime; we may add a separate error variable at some point). + */ +static inline u32 qib_read_ureg32(const struct qib_devdata *dd, + enum qib_ureg regno, int ctxt) +{ + if (!dd->kregbase || !(dd->flags & QIB_PRESENT)) + return 0; + + if (dd->userbase) + return readl(regno + (u64 __iomem *) + ((char __iomem *)dd->userbase + + dd->ureg_align * ctxt)); + else + return readl(regno + (u64 __iomem *) + (dd->uregbase + + (char __iomem *)dd->kregbase + + dd->ureg_align * ctxt)); +} + +/** + * qib_write_ureg - write 32-bit virtualized per-context register + * @dd: device + * @regno: register number + * @value: value + * @ctxt: context + * + * Write the contents of a register that is virtualized to be per context. + */ +static inline void qib_write_ureg(const struct qib_devdata *dd, + enum qib_ureg regno, u64 value, int ctxt) +{ + u64 __iomem *ubase; + + if (dd->userbase) + ubase = (u64 __iomem *) + ((char __iomem *) dd->userbase + + dd->ureg_align * ctxt); + else + ubase = (u64 __iomem *) + (dd->uregbase + + (char __iomem *) dd->kregbase + + dd->ureg_align * ctxt); + + if (dd->kregbase && (dd->flags & QIB_PRESENT)) + writeq(value, &ubase[regno]); +} + +/** + * qib_write_kreg_ctxt - write a device's per-ctxt 64-bit kernel register + * @dd: the qlogic_ib device + * @regno: the register number to write + * @ctxt: the context containing the register + * @value: the value to write + */ +static inline void qib_write_kreg_ctxt(const struct qib_devdata *dd, + const u16 regno, unsigned ctxt, + u64 value) +{ + qib_write_kreg(dd, regno + ctxt, value); +} + +static inline void write_7220_creg(const struct qib_devdata *dd, + u16 regno, u64 value) +{ + if (dd->cspec->cregbase && (dd->flags & QIB_PRESENT)) + writeq(value, &dd->cspec->cregbase[regno]); +} + +static inline u64 read_7220_creg(const struct qib_devdata *dd, u16 regno) +{ + if (!dd->cspec->cregbase || !(dd->flags & QIB_PRESENT)) + return 0; + return readq(&dd->cspec->cregbase[regno]); +} + +static inline u32 read_7220_creg32(const struct qib_devdata *dd, u16 regno) +{ + if (!dd->cspec->cregbase || !(dd->flags & QIB_PRESENT)) + return 0; + return readl(&dd->cspec->cregbase[regno]); +} + +/* kr_revision bits */ +#define QLOGIC_IB_R_EMULATORREV_MASK ((1ULL << 22) - 1) +#define QLOGIC_IB_R_EMULATORREV_SHIFT 40 + +/* kr_control bits */ +#define QLOGIC_IB_C_RESET (1U << 7) + +/* kr_intstatus, kr_intclear, kr_intmask bits */ +#define QLOGIC_IB_I_RCVURG_MASK ((1ULL << 17) - 1) +#define QLOGIC_IB_I_RCVURG_SHIFT 32 +#define QLOGIC_IB_I_RCVAVAIL_MASK ((1ULL << 17) - 1) +#define QLOGIC_IB_I_RCVAVAIL_SHIFT 0 +#define QLOGIC_IB_I_SERDESTRIMDONE (1ULL << 27) + +#define QLOGIC_IB_C_FREEZEMODE 0x00000002 +#define QLOGIC_IB_C_LINKENABLE 0x00000004 + +#define QLOGIC_IB_I_SDMAINT 0x8000000000000000ULL +#define QLOGIC_IB_I_SDMADISABLED 0x4000000000000000ULL +#define QLOGIC_IB_I_ERROR 0x0000000080000000ULL +#define QLOGIC_IB_I_SPIOSENT 0x0000000040000000ULL +#define QLOGIC_IB_I_SPIOBUFAVAIL 0x0000000020000000ULL +#define QLOGIC_IB_I_GPIO 0x0000000010000000ULL + +/* variables for sanity checking interrupt and errors */ +#define QLOGIC_IB_I_BITSEXTANT \ + (QLOGIC_IB_I_SDMAINT | QLOGIC_IB_I_SDMADISABLED | \ + (QLOGIC_IB_I_RCVURG_MASK << QLOGIC_IB_I_RCVURG_SHIFT) | \ + (QLOGIC_IB_I_RCVAVAIL_MASK << \ + QLOGIC_IB_I_RCVAVAIL_SHIFT) | \ + QLOGIC_IB_I_ERROR | QLOGIC_IB_I_SPIOSENT | \ + QLOGIC_IB_I_SPIOBUFAVAIL | QLOGIC_IB_I_GPIO | \ + QLOGIC_IB_I_SERDESTRIMDONE) + +#define IB_HWE_BITSEXTANT \ + (HWE_MASK(RXEMemParityErr) | \ + HWE_MASK(TXEMemParityErr) | \ + (QLOGIC_IB_HWE_PCIEMEMPARITYERR_MASK << \ + QLOGIC_IB_HWE_PCIEMEMPARITYERR_SHIFT) | \ + QLOGIC_IB_HWE_PCIE1PLLFAILED | \ + QLOGIC_IB_HWE_PCIE0PLLFAILED | \ + QLOGIC_IB_HWE_PCIEPOISONEDTLP | \ + QLOGIC_IB_HWE_PCIECPLTIMEOUT | \ + QLOGIC_IB_HWE_PCIEBUSPARITYXTLH | \ + QLOGIC_IB_HWE_PCIEBUSPARITYXADM | \ + QLOGIC_IB_HWE_PCIEBUSPARITYRADM | \ + HWE_MASK(PowerOnBISTFailed) | \ + QLOGIC_IB_HWE_COREPLL_FBSLIP | \ + QLOGIC_IB_HWE_COREPLL_RFSLIP | \ + QLOGIC_IB_HWE_SERDESPLLFAILED | \ + HWE_MASK(IBCBusToSPCParityErr) | \ + HWE_MASK(IBCBusFromSPCParityErr) | \ + QLOGIC_IB_HWE_PCIECPLDATAQUEUEERR | \ + QLOGIC_IB_HWE_PCIECPLHDRQUEUEERR | \ + QLOGIC_IB_HWE_SDMAMEMREADERR | \ + QLOGIC_IB_HWE_CLK_UC_PLLNOTLOCKED | \ + QLOGIC_IB_HWE_PCIESERDESQ0PCLKNOTDETECT | \ + QLOGIC_IB_HWE_PCIESERDESQ1PCLKNOTDETECT | \ + QLOGIC_IB_HWE_PCIESERDESQ2PCLKNOTDETECT | \ + QLOGIC_IB_HWE_PCIESERDESQ3PCLKNOTDETECT | \ + QLOGIC_IB_HWE_DDSRXEQMEMORYPARITYERR | \ + QLOGIC_IB_HWE_IB_UC_MEMORYPARITYERR | \ + QLOGIC_IB_HWE_PCIE_UC_OCT0MEMORYPARITYERR | \ + QLOGIC_IB_HWE_PCIE_UC_OCT1MEMORYPARITYERR) + +#define IB_E_BITSEXTANT \ + (ERR_MASK(RcvFormatErr) | ERR_MASK(RcvVCRCErr) | \ + ERR_MASK(RcvICRCErr) | ERR_MASK(RcvMinPktLenErr) | \ + ERR_MASK(RcvMaxPktLenErr) | ERR_MASK(RcvLongPktLenErr) | \ + ERR_MASK(RcvShortPktLenErr) | ERR_MASK(RcvUnexpectedCharErr) | \ + ERR_MASK(RcvUnsupportedVLErr) | ERR_MASK(RcvEBPErr) | \ + ERR_MASK(RcvIBFlowErr) | ERR_MASK(RcvBadVersionErr) | \ + ERR_MASK(RcvEgrFullErr) | ERR_MASK(RcvHdrFullErr) | \ + ERR_MASK(RcvBadTidErr) | ERR_MASK(RcvHdrLenErr) | \ + ERR_MASK(RcvHdrErr) | ERR_MASK(RcvIBLostLinkErr) | \ + ERR_MASK(SendSpecialTriggerErr) | \ + ERR_MASK(SDmaDisabledErr) | ERR_MASK(SendMinPktLenErr) | \ + ERR_MASK(SendMaxPktLenErr) | ERR_MASK(SendUnderRunErr) | \ + ERR_MASK(SendPktLenErr) | ERR_MASK(SendDroppedSmpPktErr) | \ + ERR_MASK(SendDroppedDataPktErr) | \ + ERR_MASK(SendPioArmLaunchErr) | \ + ERR_MASK(SendUnexpectedPktNumErr) | \ + ERR_MASK(SendUnsupportedVLErr) | ERR_MASK(SendBufMisuseErr) | \ + ERR_MASK(SDmaGenMismatchErr) | ERR_MASK(SDmaOutOfBoundErr) | \ + ERR_MASK(SDmaTailOutOfBoundErr) | ERR_MASK(SDmaBaseErr) | \ + ERR_MASK(SDma1stDescErr) | ERR_MASK(SDmaRpyTagErr) | \ + ERR_MASK(SDmaDwEnErr) | ERR_MASK(SDmaMissingDwErr) | \ + ERR_MASK(SDmaUnexpDataErr) | \ + ERR_MASK(IBStatusChanged) | ERR_MASK(InvalidAddrErr) | \ + ERR_MASK(ResetNegated) | ERR_MASK(HardwareErr) | \ + ERR_MASK(SDmaDescAddrMisalignErr) | \ + ERR_MASK(InvalidEEPCmd)) + +/* kr_hwerrclear, kr_hwerrmask, kr_hwerrstatus, bits */ +#define QLOGIC_IB_HWE_PCIEMEMPARITYERR_MASK 0x00000000000000ffULL +#define QLOGIC_IB_HWE_PCIEMEMPARITYERR_SHIFT 0 +#define QLOGIC_IB_HWE_PCIEPOISONEDTLP 0x0000000010000000ULL +#define QLOGIC_IB_HWE_PCIECPLTIMEOUT 0x0000000020000000ULL +#define QLOGIC_IB_HWE_PCIEBUSPARITYXTLH 0x0000000040000000ULL +#define QLOGIC_IB_HWE_PCIEBUSPARITYXADM 0x0000000080000000ULL +#define QLOGIC_IB_HWE_PCIEBUSPARITYRADM 0x0000000100000000ULL +#define QLOGIC_IB_HWE_COREPLL_FBSLIP 0x0080000000000000ULL +#define QLOGIC_IB_HWE_COREPLL_RFSLIP 0x0100000000000000ULL +#define QLOGIC_IB_HWE_PCIE1PLLFAILED 0x0400000000000000ULL +#define QLOGIC_IB_HWE_PCIE0PLLFAILED 0x0800000000000000ULL +#define QLOGIC_IB_HWE_SERDESPLLFAILED 0x1000000000000000ULL +/* specific to this chip */ +#define QLOGIC_IB_HWE_PCIECPLDATAQUEUEERR 0x0000000000000040ULL +#define QLOGIC_IB_HWE_PCIECPLHDRQUEUEERR 0x0000000000000080ULL +#define QLOGIC_IB_HWE_SDMAMEMREADERR 0x0000000010000000ULL +#define QLOGIC_IB_HWE_CLK_UC_PLLNOTLOCKED 0x2000000000000000ULL +#define QLOGIC_IB_HWE_PCIESERDESQ0PCLKNOTDETECT 0x0100000000000000ULL +#define QLOGIC_IB_HWE_PCIESERDESQ1PCLKNOTDETECT 0x0200000000000000ULL +#define QLOGIC_IB_HWE_PCIESERDESQ2PCLKNOTDETECT 0x0400000000000000ULL +#define QLOGIC_IB_HWE_PCIESERDESQ3PCLKNOTDETECT 0x0800000000000000ULL +#define QLOGIC_IB_HWE_DDSRXEQMEMORYPARITYERR 0x0000008000000000ULL +#define QLOGIC_IB_HWE_IB_UC_MEMORYPARITYERR 0x0000004000000000ULL +#define QLOGIC_IB_HWE_PCIE_UC_OCT0MEMORYPARITYERR 0x0000001000000000ULL +#define QLOGIC_IB_HWE_PCIE_UC_OCT1MEMORYPARITYERR 0x0000002000000000ULL + +#define IBA7220_IBCC_LINKCMD_SHIFT 19 + +/* kr_ibcddrctrl bits */ +#define IBA7220_IBC_DLIDLMC_MASK 0xFFFFFFFFUL +#define IBA7220_IBC_DLIDLMC_SHIFT 32 + +#define IBA7220_IBC_HRTBT_MASK (SYM_RMASK(IBCDDRCtrl, HRTBT_AUTO) | \ + SYM_RMASK(IBCDDRCtrl, HRTBT_ENB)) +#define IBA7220_IBC_HRTBT_SHIFT SYM_LSB(IBCDDRCtrl, HRTBT_ENB) + +#define IBA7220_IBC_LANE_REV_SUPPORTED (1<<8) +#define IBA7220_IBC_LREV_MASK 1 +#define IBA7220_IBC_LREV_SHIFT 8 +#define IBA7220_IBC_RXPOL_MASK 1 +#define IBA7220_IBC_RXPOL_SHIFT 7 +#define IBA7220_IBC_WIDTH_SHIFT 5 +#define IBA7220_IBC_WIDTH_MASK 0x3 +#define IBA7220_IBC_WIDTH_1X_ONLY (0 << IBA7220_IBC_WIDTH_SHIFT) +#define IBA7220_IBC_WIDTH_4X_ONLY (1 << IBA7220_IBC_WIDTH_SHIFT) +#define IBA7220_IBC_WIDTH_AUTONEG (2 << IBA7220_IBC_WIDTH_SHIFT) +#define IBA7220_IBC_SPEED_AUTONEG (1 << 1) +#define IBA7220_IBC_SPEED_SDR (1 << 2) +#define IBA7220_IBC_SPEED_DDR (1 << 3) +#define IBA7220_IBC_SPEED_AUTONEG_MASK (0x7 << 1) +#define IBA7220_IBC_IBTA_1_2_MASK (1) + +/* kr_ibcddrstatus */ +/* link latency shift is 0, don't bother defining */ +#define IBA7220_DDRSTAT_LINKLAT_MASK 0x3ffffff + +/* kr_extstatus bits */ +#define QLOGIC_IB_EXTS_FREQSEL 0x2 +#define QLOGIC_IB_EXTS_SERDESSEL 0x4 +#define QLOGIC_IB_EXTS_MEMBIST_ENDTEST 0x0000000000004000 +#define QLOGIC_IB_EXTS_MEMBIST_DISABLED 0x0000000000008000 + +/* kr_xgxsconfig bits */ +#define QLOGIC_IB_XGXS_RESET 0x5ULL +#define QLOGIC_IB_XGXS_FC_SAFE (1ULL << 63) + +/* kr_rcvpktledcnt */ +#define IBA7220_LEDBLINK_ON_SHIFT 32 /* 4ns period on after packet */ +#define IBA7220_LEDBLINK_OFF_SHIFT 0 /* 4ns period off before next on */ + +#define _QIB_GPIO_SDA_NUM 1 +#define _QIB_GPIO_SCL_NUM 0 +#define QIB_TWSI_EEPROM_DEV 0xA2 /* All Production 7220 cards. */ +#define QIB_TWSI_TEMP_DEV 0x98 + +/* HW counter clock is at 4nsec */ +#define QIB_7220_PSXMITWAIT_CHECK_RATE 4000 + +#define IBA7220_R_INTRAVAIL_SHIFT 17 +#define IBA7220_R_PKEY_DIS_SHIFT 34 +#define IBA7220_R_TAILUPD_SHIFT 35 +#define IBA7220_R_CTXTCFG_SHIFT 36 + +#define IBA7220_HDRHEAD_PKTINT_SHIFT 32 /* interrupt cnt in upper 32 bits */ + +/* + * the size bits give us 2^N, in KB units. 0 marks as invalid, + * and 7 is reserved. We currently use only 2KB and 4KB + */ +#define IBA7220_TID_SZ_SHIFT 37 /* shift to 3bit size selector */ +#define IBA7220_TID_SZ_2K (1UL << IBA7220_TID_SZ_SHIFT) /* 2KB */ +#define IBA7220_TID_SZ_4K (2UL << IBA7220_TID_SZ_SHIFT) /* 4KB */ +#define IBA7220_TID_PA_SHIFT 11U /* TID addr in chip stored w/o low bits */ +#define PBC_7220_VL15_SEND (1ULL << 63) /* pbc; VL15, no credit check */ +#define PBC_7220_VL15_SEND_CTRL (1ULL << 31) /* control version of same */ + +#define AUTONEG_TRIES 5 /* sequential retries to negotiate DDR */ + +/* packet rate matching delay multiplier */ +static u8 rate_to_delay[2][2] = { + /* 1x, 4x */ + { 8, 2 }, /* SDR */ + { 4, 1 } /* DDR */ +}; + +static u8 ib_rate_to_delay[IB_RATE_120_GBPS + 1] = { + [IB_RATE_2_5_GBPS] = 8, + [IB_RATE_5_GBPS] = 4, + [IB_RATE_10_GBPS] = 2, + [IB_RATE_20_GBPS] = 1 +}; + +#define IBA7220_LINKSPEED_SHIFT SYM_LSB(IBCStatus, LinkSpeedActive) +#define IBA7220_LINKWIDTH_SHIFT SYM_LSB(IBCStatus, LinkWidthActive) + +/* link training states, from IBC */ +#define IB_7220_LT_STATE_DISABLED 0x00 +#define IB_7220_LT_STATE_LINKUP 0x01 +#define IB_7220_LT_STATE_POLLACTIVE 0x02 +#define IB_7220_LT_STATE_POLLQUIET 0x03 +#define IB_7220_LT_STATE_SLEEPDELAY 0x04 +#define IB_7220_LT_STATE_SLEEPQUIET 0x05 +#define IB_7220_LT_STATE_CFGDEBOUNCE 0x08 +#define IB_7220_LT_STATE_CFGRCVFCFG 0x09 +#define IB_7220_LT_STATE_CFGWAITRMT 0x0a +#define IB_7220_LT_STATE_CFGIDLE 0x0b +#define IB_7220_LT_STATE_RECOVERRETRAIN 0x0c +#define IB_7220_LT_STATE_RECOVERWAITRMT 0x0e +#define IB_7220_LT_STATE_RECOVERIDLE 0x0f + +/* link state machine states from IBC */ +#define IB_7220_L_STATE_DOWN 0x0 +#define IB_7220_L_STATE_INIT 0x1 +#define IB_7220_L_STATE_ARM 0x2 +#define IB_7220_L_STATE_ACTIVE 0x3 +#define IB_7220_L_STATE_ACT_DEFER 0x4 + +static const u8 qib_7220_physportstate[0x20] = { + [IB_7220_LT_STATE_DISABLED] = IB_PHYSPORTSTATE_DISABLED, + [IB_7220_LT_STATE_LINKUP] = IB_PHYSPORTSTATE_LINKUP, + [IB_7220_LT_STATE_POLLACTIVE] = IB_PHYSPORTSTATE_POLL, + [IB_7220_LT_STATE_POLLQUIET] = IB_PHYSPORTSTATE_POLL, + [IB_7220_LT_STATE_SLEEPDELAY] = IB_PHYSPORTSTATE_SLEEP, + [IB_7220_LT_STATE_SLEEPQUIET] = IB_PHYSPORTSTATE_SLEEP, + [IB_7220_LT_STATE_CFGDEBOUNCE] = + IB_PHYSPORTSTATE_CFG_TRAIN, + [IB_7220_LT_STATE_CFGRCVFCFG] = + IB_PHYSPORTSTATE_CFG_TRAIN, + [IB_7220_LT_STATE_CFGWAITRMT] = + IB_PHYSPORTSTATE_CFG_TRAIN, + [IB_7220_LT_STATE_CFGIDLE] = IB_PHYSPORTSTATE_CFG_TRAIN, + [IB_7220_LT_STATE_RECOVERRETRAIN] = + IB_PHYSPORTSTATE_LINK_ERR_RECOVER, + [IB_7220_LT_STATE_RECOVERWAITRMT] = + IB_PHYSPORTSTATE_LINK_ERR_RECOVER, + [IB_7220_LT_STATE_RECOVERIDLE] = + IB_PHYSPORTSTATE_LINK_ERR_RECOVER, + [0x10] = IB_PHYSPORTSTATE_CFG_TRAIN, + [0x11] = IB_PHYSPORTSTATE_CFG_TRAIN, + [0x12] = IB_PHYSPORTSTATE_CFG_TRAIN, + [0x13] = IB_PHYSPORTSTATE_CFG_TRAIN, + [0x14] = IB_PHYSPORTSTATE_CFG_TRAIN, + [0x15] = IB_PHYSPORTSTATE_CFG_TRAIN, + [0x16] = IB_PHYSPORTSTATE_CFG_TRAIN, + [0x17] = IB_PHYSPORTSTATE_CFG_TRAIN +}; + +int qib_special_trigger; +module_param_named(special_trigger, qib_special_trigger, int, S_IRUGO); +MODULE_PARM_DESC(special_trigger, "Enable SpecialTrigger arm/launch"); + +#define IBCBUSFRSPCPARITYERR HWE_MASK(IBCBusFromSPCParityErr) +#define IBCBUSTOSPCPARITYERR HWE_MASK(IBCBusToSPCParityErr) + +#define SYM_MASK_BIT(regname, fldname, bit) ((u64) \ + (1ULL << (SYM_LSB(regname, fldname) + (bit)))) + +#define TXEMEMPARITYERR_PIOBUF \ + SYM_MASK_BIT(HwErrMask, TXEMemParityErrMask, 0) +#define TXEMEMPARITYERR_PIOPBC \ + SYM_MASK_BIT(HwErrMask, TXEMemParityErrMask, 1) +#define TXEMEMPARITYERR_PIOLAUNCHFIFO \ + SYM_MASK_BIT(HwErrMask, TXEMemParityErrMask, 2) + +#define RXEMEMPARITYERR_RCVBUF \ + SYM_MASK_BIT(HwErrMask, RXEMemParityErrMask, 0) +#define RXEMEMPARITYERR_LOOKUPQ \ + SYM_MASK_BIT(HwErrMask, RXEMemParityErrMask, 1) +#define RXEMEMPARITYERR_EXPTID \ + SYM_MASK_BIT(HwErrMask, RXEMemParityErrMask, 2) +#define RXEMEMPARITYERR_EAGERTID \ + SYM_MASK_BIT(HwErrMask, RXEMemParityErrMask, 3) +#define RXEMEMPARITYERR_FLAGBUF \ + SYM_MASK_BIT(HwErrMask, RXEMemParityErrMask, 4) +#define RXEMEMPARITYERR_DATAINFO \ + SYM_MASK_BIT(HwErrMask, RXEMemParityErrMask, 5) +#define RXEMEMPARITYERR_HDRINFO \ + SYM_MASK_BIT(HwErrMask, RXEMemParityErrMask, 6) + +/* 7220 specific hardware errors... */ +static const struct qib_hwerror_msgs qib_7220_hwerror_msgs[] = { + /* generic hardware errors */ + QLOGIC_IB_HWE_MSG(IBCBUSFRSPCPARITYERR, "QIB2IB Parity"), + QLOGIC_IB_HWE_MSG(IBCBUSTOSPCPARITYERR, "IB2QIB Parity"), + + QLOGIC_IB_HWE_MSG(TXEMEMPARITYERR_PIOBUF, + "TXE PIOBUF Memory Parity"), + QLOGIC_IB_HWE_MSG(TXEMEMPARITYERR_PIOPBC, + "TXE PIOPBC Memory Parity"), + QLOGIC_IB_HWE_MSG(TXEMEMPARITYERR_PIOLAUNCHFIFO, + "TXE PIOLAUNCHFIFO Memory Parity"), + + QLOGIC_IB_HWE_MSG(RXEMEMPARITYERR_RCVBUF, + "RXE RCVBUF Memory Parity"), + QLOGIC_IB_HWE_MSG(RXEMEMPARITYERR_LOOKUPQ, + "RXE LOOKUPQ Memory Parity"), + QLOGIC_IB_HWE_MSG(RXEMEMPARITYERR_EAGERTID, + "RXE EAGERTID Memory Parity"), + QLOGIC_IB_HWE_MSG(RXEMEMPARITYERR_EXPTID, + "RXE EXPTID Memory Parity"), + QLOGIC_IB_HWE_MSG(RXEMEMPARITYERR_FLAGBUF, + "RXE FLAGBUF Memory Parity"), + QLOGIC_IB_HWE_MSG(RXEMEMPARITYERR_DATAINFO, + "RXE DATAINFO Memory Parity"), + QLOGIC_IB_HWE_MSG(RXEMEMPARITYERR_HDRINFO, + "RXE HDRINFO Memory Parity"), + + /* chip-specific hardware errors */ + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIEPOISONEDTLP, + "PCIe Poisoned TLP"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIECPLTIMEOUT, + "PCIe completion timeout"), + /* + * In practice, it's unlikely that we'll see PCIe PLL, or bus + * parity or memory parity error failures, because most likely we + * won't be able to talk to the core of the chip. Nonetheless, we + * might see them, if they are in parts of the PCIe core that aren't + * essential. + */ + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIE1PLLFAILED, + "PCIePLL1"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIE0PLLFAILED, + "PCIePLL0"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIEBUSPARITYXTLH, + "PCIe XTLH core parity"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIEBUSPARITYXADM, + "PCIe ADM TX core parity"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIEBUSPARITYRADM, + "PCIe ADM RX core parity"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_SERDESPLLFAILED, + "SerDes PLL"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIECPLDATAQUEUEERR, + "PCIe cpl header queue"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIECPLHDRQUEUEERR, + "PCIe cpl data queue"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_SDMAMEMREADERR, + "Send DMA memory read"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_CLK_UC_PLLNOTLOCKED, + "uC PLL clock not locked"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIESERDESQ0PCLKNOTDETECT, + "PCIe serdes Q0 no clock"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIESERDESQ1PCLKNOTDETECT, + "PCIe serdes Q1 no clock"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIESERDESQ2PCLKNOTDETECT, + "PCIe serdes Q2 no clock"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIESERDESQ3PCLKNOTDETECT, + "PCIe serdes Q3 no clock"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_DDSRXEQMEMORYPARITYERR, + "DDS RXEQ memory parity"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_IB_UC_MEMORYPARITYERR, + "IB uC memory parity"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIE_UC_OCT0MEMORYPARITYERR, + "PCIe uC oct0 memory parity"), + QLOGIC_IB_HWE_MSG(QLOGIC_IB_HWE_PCIE_UC_OCT1MEMORYPARITYERR, + "PCIe uC oct1 memory parity"), +}; + +#define RXE_PARITY (RXEMEMPARITYERR_EAGERTID|RXEMEMPARITYERR_EXPTID) + +#define QLOGIC_IB_E_PKTERRS (\ + ERR_MASK(SendPktLenErr) | \ + ERR_MASK(SendDroppedDataPktErr) | \ + ERR_MASK(RcvVCRCErr) | \ + ERR_MASK(RcvICRCErr) | \ + ERR_MASK(RcvShortPktLenErr) | \ + ERR_MASK(RcvEBPErr)) + +/* Convenience for decoding Send DMA errors */ +#define QLOGIC_IB_E_SDMAERRS ( \ + ERR_MASK(SDmaGenMismatchErr) | \ + ERR_MASK(SDmaOutOfBoundErr) | \ + ERR_MASK(SDmaTailOutOfBoundErr) | ERR_MASK(SDmaBaseErr) | \ + ERR_MASK(SDma1stDescErr) | ERR_MASK(SDmaRpyTagErr) | \ + ERR_MASK(SDmaDwEnErr) | ERR_MASK(SDmaMissingDwErr) | \ + ERR_MASK(SDmaUnexpDataErr) | \ + ERR_MASK(SDmaDescAddrMisalignErr) | \ + ERR_MASK(SDmaDisabledErr) | \ + ERR_MASK(SendBufMisuseErr)) + +/* These are all rcv-related errors which we want to count for stats */ +#define E_SUM_PKTERRS \ + (ERR_MASK(RcvHdrLenErr) | ERR_MASK(RcvBadTidErr) | \ + ERR_MASK(RcvBadVersionErr) | ERR_MASK(RcvHdrErr) | \ + ERR_MASK(RcvLongPktLenErr) | ERR_MASK(RcvShortPktLenErr) | \ + ERR_MASK(RcvMaxPktLenErr) | ERR_MASK(RcvMinPktLenErr) | \ + ERR_MASK(RcvFormatErr) | ERR_MASK(RcvUnsupportedVLErr) | \ + ERR_MASK(RcvUnexpectedCharErr) | ERR_MASK(RcvEBPErr)) + +/* These are all send-related errors which we want to count for stats */ +#define E_SUM_ERRS \ + (ERR_MASK(SendPioArmLaunchErr) | ERR_MASK(SendUnexpectedPktNumErr) | \ + ERR_MASK(SendDroppedDataPktErr) | ERR_MASK(SendDroppedSmpPktErr) | \ + ERR_MASK(SendMaxPktLenErr) | ERR_MASK(SendUnsupportedVLErr) | \ + ERR_MASK(SendMinPktLenErr) | ERR_MASK(SendPktLenErr) | \ + ERR_MASK(InvalidAddrErr)) + +/* + * this is similar to E_SUM_ERRS, but can't ignore armlaunch, don't ignore + * errors not related to freeze and cancelling buffers. Can't ignore + * armlaunch because could get more while still cleaning up, and need + * to cancel those as they happen. + */ +#define E_SPKT_ERRS_IGNORE \ + (ERR_MASK(SendDroppedDataPktErr) | ERR_MASK(SendDroppedSmpPktErr) | \ + ERR_MASK(SendMaxPktLenErr) | ERR_MASK(SendMinPktLenErr) | \ + ERR_MASK(SendPktLenErr)) + +/* + * these are errors that can occur when the link changes state while + * a packet is being sent or received. This doesn't cover things + * like EBP or VCRC that can be the result of a sending having the + * link change state, so we receive a "known bad" packet. + */ +#define E_SUM_LINK_PKTERRS \ + (ERR_MASK(SendDroppedDataPktErr) | ERR_MASK(SendDroppedSmpPktErr) | \ + ERR_MASK(SendMinPktLenErr) | ERR_MASK(SendPktLenErr) | \ + ERR_MASK(RcvShortPktLenErr) | ERR_MASK(RcvMinPktLenErr) | \ + ERR_MASK(RcvUnexpectedCharErr)) + +static void autoneg_7220_work(struct work_struct *); +static u32 __iomem *qib_7220_getsendbuf(struct qib_pportdata *, u64, u32 *); + +/* + * Called when we might have an error that is specific to a particular + * PIO buffer, and may need to cancel that buffer, so it can be re-used. + * because we don't need to force the update of pioavail. + */ +static void qib_disarm_7220_senderrbufs(struct qib_pportdata *ppd) +{ + unsigned long sbuf[3]; + struct qib_devdata *dd = ppd->dd; + + /* + * It's possible that sendbuffererror could have bits set; might + * have already done this as a result of hardware error handling. + */ + /* read these before writing errorclear */ + sbuf[0] = qib_read_kreg64(dd, kr_sendbuffererror); + sbuf[1] = qib_read_kreg64(dd, kr_sendbuffererror + 1); + sbuf[2] = qib_read_kreg64(dd, kr_sendbuffererror + 2); + + if (sbuf[0] || sbuf[1] || sbuf[2]) + qib_disarm_piobufs_set(dd, sbuf, + dd->piobcnt2k + dd->piobcnt4k); +} + +static void qib_7220_txe_recover(struct qib_devdata *dd) +{ + qib_devinfo(dd->pcidev, "Recovering from TXE PIO parity error\n"); + qib_disarm_7220_senderrbufs(dd->pport); +} + +/* + * This is called with interrupts disabled and sdma_lock held. + */ +static void qib_7220_sdma_sendctrl(struct qib_pportdata *ppd, unsigned op) +{ + struct qib_devdata *dd = ppd->dd; + u64 set_sendctrl = 0; + u64 clr_sendctrl = 0; + + if (op & QIB_SDMA_SENDCTRL_OP_ENABLE) + set_sendctrl |= SYM_MASK(SendCtrl, SDmaEnable); + else + clr_sendctrl |= SYM_MASK(SendCtrl, SDmaEnable); + + if (op & QIB_SDMA_SENDCTRL_OP_INTENABLE) + set_sendctrl |= SYM_MASK(SendCtrl, SDmaIntEnable); + else + clr_sendctrl |= SYM_MASK(SendCtrl, SDmaIntEnable); + + if (op & QIB_SDMA_SENDCTRL_OP_HALT) + set_sendctrl |= SYM_MASK(SendCtrl, SDmaHalt); + else + clr_sendctrl |= SYM_MASK(SendCtrl, SDmaHalt); + + spin_lock(&dd->sendctrl_lock); + + dd->sendctrl |= set_sendctrl; + dd->sendctrl &= ~clr_sendctrl; + + qib_write_kreg(dd, kr_sendctrl, dd->sendctrl); + qib_write_kreg(dd, kr_scratch, 0); + + spin_unlock(&dd->sendctrl_lock); +} + +static void qib_decode_7220_sdma_errs(struct qib_pportdata *ppd, + u64 err, char *buf, size_t blen) +{ + static const struct { + u64 err; + const char *msg; + } errs[] = { + { ERR_MASK(SDmaGenMismatchErr), + "SDmaGenMismatch" }, + { ERR_MASK(SDmaOutOfBoundErr), + "SDmaOutOfBound" }, + { ERR_MASK(SDmaTailOutOfBoundErr), + "SDmaTailOutOfBound" }, + { ERR_MASK(SDmaBaseErr), + "SDmaBase" }, + { ERR_MASK(SDma1stDescErr), + "SDma1stDesc" }, + { ERR_MASK(SDmaRpyTagErr), + "SDmaRpyTag" }, + { ERR_MASK(SDmaDwEnErr), + "SDmaDwEn" }, + { ERR_MASK(SDmaMissingDwErr), + "SDmaMissingDw" }, + { ERR_MASK(SDmaUnexpDataErr), + "SDmaUnexpData" }, + { ERR_MASK(SDmaDescAddrMisalignErr), + "SDmaDescAddrMisalign" }, + { ERR_MASK(SendBufMisuseErr), + "SendBufMisuse" }, + { ERR_MASK(SDmaDisabledErr), + "SDmaDisabled" }, + }; + int i; + size_t bidx = 0; + + for (i = 0; i < ARRAY_SIZE(errs); i++) { + if (err & errs[i].err) + bidx += scnprintf(buf + bidx, blen - bidx, + "%s ", errs[i].msg); + } +} + +/* + * This is called as part of link down clean up so disarm and flush + * all send buffers so that SMP packets can be sent. + */ +static void qib_7220_sdma_hw_clean_up(struct qib_pportdata *ppd) +{ + /* This will trigger the Abort interrupt */ + sendctrl_7220_mod(ppd, QIB_SENDCTRL_DISARM_ALL | QIB_SENDCTRL_FLUSH | + QIB_SENDCTRL_AVAIL_BLIP); + ppd->dd->upd_pio_shadow = 1; /* update our idea of what's busy */ +} + +static void qib_sdma_7220_setlengen(struct qib_pportdata *ppd) +{ + /* + * Set SendDmaLenGen and clear and set + * the MSB of the generation count to enable generation checking + * and load the internal generation counter. + */ + qib_write_kreg(ppd->dd, kr_senddmalengen, ppd->sdma_descq_cnt); + qib_write_kreg(ppd->dd, kr_senddmalengen, + ppd->sdma_descq_cnt | + (1ULL << QIB_7220_SendDmaLenGen_Generation_MSB)); +} + +static void qib_7220_sdma_hw_start_up(struct qib_pportdata *ppd) +{ + qib_sdma_7220_setlengen(ppd); + qib_sdma_update_7220_tail(ppd, 0); /* Set SendDmaTail */ + ppd->sdma_head_dma[0] = 0; +} + +#define DISABLES_SDMA ( \ + ERR_MASK(SDmaDisabledErr) | \ + ERR_MASK(SDmaBaseErr) | \ + ERR_MASK(SDmaTailOutOfBoundErr) | \ + ERR_MASK(SDmaOutOfBoundErr) | \ + ERR_MASK(SDma1stDescErr) | \ + ERR_MASK(SDmaRpyTagErr) | \ + ERR_MASK(SDmaGenMismatchErr) | \ + ERR_MASK(SDmaDescAddrMisalignErr) | \ + ERR_MASK(SDmaMissingDwErr) | \ + ERR_MASK(SDmaDwEnErr)) + +static void sdma_7220_errors(struct qib_pportdata *ppd, u64 errs) +{ + unsigned long flags; + struct qib_devdata *dd = ppd->dd; + char *msg; + + errs &= QLOGIC_IB_E_SDMAERRS; + + msg = dd->cspec->sdmamsgbuf; + qib_decode_7220_sdma_errs(ppd, errs, msg, + sizeof(dd->cspec->sdmamsgbuf)); + spin_lock_irqsave(&ppd->sdma_lock, flags); + + if (errs & ERR_MASK(SendBufMisuseErr)) { + unsigned long sbuf[3]; + + sbuf[0] = qib_read_kreg64(dd, kr_sendbuffererror); + sbuf[1] = qib_read_kreg64(dd, kr_sendbuffererror + 1); + sbuf[2] = qib_read_kreg64(dd, kr_sendbuffererror + 2); + + qib_dev_err(ppd->dd, + "IB%u:%u SendBufMisuse: %04lx %016lx %016lx\n", + ppd->dd->unit, ppd->port, sbuf[2], sbuf[1], + sbuf[0]); + } + + if (errs & ERR_MASK(SDmaUnexpDataErr)) + qib_dev_err(dd, "IB%u:%u SDmaUnexpData\n", ppd->dd->unit, + ppd->port); + + switch (ppd->sdma_state.current_state) { + case qib_sdma_state_s00_hw_down: + /* not expecting any interrupts */ + break; + + case qib_sdma_state_s10_hw_start_up_wait: + /* handled in intr path */ + break; + + case qib_sdma_state_s20_idle: + /* not expecting any interrupts */ + break; + + case qib_sdma_state_s30_sw_clean_up_wait: + /* not expecting any interrupts */ + break; + + case qib_sdma_state_s40_hw_clean_up_wait: + if (errs & ERR_MASK(SDmaDisabledErr)) + __qib_sdma_process_event(ppd, + qib_sdma_event_e50_hw_cleaned); + break; + + case qib_sdma_state_s50_hw_halt_wait: + /* handled in intr path */ + break; + + case qib_sdma_state_s99_running: + if (errs & DISABLES_SDMA) + __qib_sdma_process_event(ppd, + qib_sdma_event_e7220_err_halted); + break; + } + + spin_unlock_irqrestore(&ppd->sdma_lock, flags); +} + +/* + * Decode the error status into strings, deciding whether to always + * print * it or not depending on "normal packet errors" vs everything + * else. Return 1 if "real" errors, otherwise 0 if only packet + * errors, so caller can decide what to print with the string. + */ +static int qib_decode_7220_err(struct qib_devdata *dd, char *buf, size_t blen, + u64 err) +{ + int iserr = 1; + + *buf = '\0'; + if (err & QLOGIC_IB_E_PKTERRS) { + if (!(err & ~QLOGIC_IB_E_PKTERRS)) + iserr = 0; + if ((err & ERR_MASK(RcvICRCErr)) && + !(err & (ERR_MASK(RcvVCRCErr) | ERR_MASK(RcvEBPErr)))) + strlcat(buf, "CRC ", blen); + if (!iserr) + goto done; + } + if (err & ERR_MASK(RcvHdrLenErr)) + strlcat(buf, "rhdrlen ", blen); + if (err & ERR_MASK(RcvBadTidErr)) + strlcat(buf, "rbadtid ", blen); + if (err & ERR_MASK(RcvBadVersionErr)) + strlcat(buf, "rbadversion ", blen); + if (err & ERR_MASK(RcvHdrErr)) + strlcat(buf, "rhdr ", blen); + if (err & ERR_MASK(SendSpecialTriggerErr)) + strlcat(buf, "sendspecialtrigger ", blen); + if (err & ERR_MASK(RcvLongPktLenErr)) + strlcat(buf, "rlongpktlen ", blen); + if (err & ERR_MASK(RcvMaxPktLenErr)) + strlcat(buf, "rmaxpktlen ", blen); + if (err & ERR_MASK(RcvMinPktLenErr)) + strlcat(buf, "rminpktlen ", blen); + if (err & ERR_MASK(SendMinPktLenErr)) + strlcat(buf, "sminpktlen ", blen); + if (err & ERR_MASK(RcvFormatErr)) + strlcat(buf, "rformaterr ", blen); + if (err & ERR_MASK(RcvUnsupportedVLErr)) + strlcat(buf, "runsupvl ", blen); + if (err & ERR_MASK(RcvUnexpectedCharErr)) + strlcat(buf, "runexpchar ", blen); + if (err & ERR_MASK(RcvIBFlowErr)) + strlcat(buf, "ribflow ", blen); + if (err & ERR_MASK(SendUnderRunErr)) + strlcat(buf, "sunderrun ", blen); + if (err & ERR_MASK(SendPioArmLaunchErr)) + strlcat(buf, "spioarmlaunch ", blen); + if (err & ERR_MASK(SendUnexpectedPktNumErr)) + strlcat(buf, "sunexperrpktnum ", blen); + if (err & ERR_MASK(SendDroppedSmpPktErr)) + strlcat(buf, "sdroppedsmppkt ", blen); + if (err & ERR_MASK(SendMaxPktLenErr)) + strlcat(buf, "smaxpktlen ", blen); + if (err & ERR_MASK(SendUnsupportedVLErr)) + strlcat(buf, "sunsupVL ", blen); + if (err & ERR_MASK(InvalidAddrErr)) + strlcat(buf, "invalidaddr ", blen); + if (err & ERR_MASK(RcvEgrFullErr)) + strlcat(buf, "rcvegrfull ", blen); + if (err & ERR_MASK(RcvHdrFullErr)) + strlcat(buf, "rcvhdrfull ", blen); + if (err & ERR_MASK(IBStatusChanged)) + strlcat(buf, "ibcstatuschg ", blen); + if (err & ERR_MASK(RcvIBLostLinkErr)) + strlcat(buf, "riblostlink ", blen); + if (err & ERR_MASK(HardwareErr)) + strlcat(buf, "hardware ", blen); + if (err & ERR_MASK(ResetNegated)) + strlcat(buf, "reset ", blen); + if (err & QLOGIC_IB_E_SDMAERRS) + qib_decode_7220_sdma_errs(dd->pport, err, buf, blen); + if (err & ERR_MASK(InvalidEEPCmd)) + strlcat(buf, "invalideepromcmd ", blen); +done: + return iserr; +} + +static void reenable_7220_chase(struct timer_list *t) +{ + struct qib_chippport_specific *cpspec = from_timer(cpspec, t, + chase_timer); + struct qib_pportdata *ppd = &cpspec->pportdata; + + ppd->cpspec->chase_timer.expires = 0; + qib_set_ib_7220_lstate(ppd, QLOGIC_IB_IBCC_LINKCMD_DOWN, + QLOGIC_IB_IBCC_LINKINITCMD_POLL); +} + +static void handle_7220_chase(struct qib_pportdata *ppd, u64 ibcst) +{ + u8 ibclt; + unsigned long tnow; + + ibclt = (u8)SYM_FIELD(ibcst, IBCStatus, LinkTrainingState); + + /* + * Detect and handle the state chase issue, where we can + * get stuck if we are unlucky on timing on both sides of + * the link. If we are, we disable, set a timer, and + * then re-enable. + */ + switch (ibclt) { + case IB_7220_LT_STATE_CFGRCVFCFG: + case IB_7220_LT_STATE_CFGWAITRMT: + case IB_7220_LT_STATE_TXREVLANES: + case IB_7220_LT_STATE_CFGENH: + tnow = jiffies; + if (ppd->cpspec->chase_end && + time_after(tnow, ppd->cpspec->chase_end)) { + ppd->cpspec->chase_end = 0; + qib_set_ib_7220_lstate(ppd, + QLOGIC_IB_IBCC_LINKCMD_DOWN, + QLOGIC_IB_IBCC_LINKINITCMD_DISABLE); + ppd->cpspec->chase_timer.expires = jiffies + + QIB_CHASE_DIS_TIME; + add_timer(&ppd->cpspec->chase_timer); + } else if (!ppd->cpspec->chase_end) + ppd->cpspec->chase_end = tnow + QIB_CHASE_TIME; + break; + + default: + ppd->cpspec->chase_end = 0; + break; + } +} + +static void handle_7220_errors(struct qib_devdata *dd, u64 errs) +{ + char *msg; + u64 ignore_this_time = 0; + u64 iserr = 0; + struct qib_pportdata *ppd = dd->pport; + u64 mask; + + /* don't report errors that are masked */ + errs &= dd->cspec->errormask; + msg = dd->cspec->emsgbuf; + + /* do these first, they are most important */ + if (errs & ERR_MASK(HardwareErr)) + qib_7220_handle_hwerrors(dd, msg, sizeof(dd->cspec->emsgbuf)); + + if (errs & QLOGIC_IB_E_SDMAERRS) + sdma_7220_errors(ppd, errs); + + if (errs & ~IB_E_BITSEXTANT) + qib_dev_err(dd, + "error interrupt with unknown errors %llx set\n", + (unsigned long long) (errs & ~IB_E_BITSEXTANT)); + + if (errs & E_SUM_ERRS) { + qib_disarm_7220_senderrbufs(ppd); + if ((errs & E_SUM_LINK_PKTERRS) && + !(ppd->lflags & QIBL_LINKACTIVE)) { + /* + * This can happen when trying to bring the link + * up, but the IB link changes state at the "wrong" + * time. The IB logic then complains that the packet + * isn't valid. We don't want to confuse people, so + * we just don't print them, except at debug + */ + ignore_this_time = errs & E_SUM_LINK_PKTERRS; + } + } else if ((errs & E_SUM_LINK_PKTERRS) && + !(ppd->lflags & QIBL_LINKACTIVE)) { + /* + * This can happen when SMA is trying to bring the link + * up, but the IB link changes state at the "wrong" time. + * The IB logic then complains that the packet isn't + * valid. We don't want to confuse people, so we just + * don't print them, except at debug + */ + ignore_this_time = errs & E_SUM_LINK_PKTERRS; + } + + qib_write_kreg(dd, kr_errclear, errs); + + errs &= ~ignore_this_time; + if (!errs) + goto done; + + /* + * The ones we mask off are handled specially below + * or above. Also mask SDMADISABLED by default as it + * is too chatty. + */ + mask = ERR_MASK(IBStatusChanged) | + ERR_MASK(RcvEgrFullErr) | ERR_MASK(RcvHdrFullErr) | + ERR_MASK(HardwareErr) | ERR_MASK(SDmaDisabledErr); + + qib_decode_7220_err(dd, msg, sizeof(dd->cspec->emsgbuf), errs & ~mask); + + if (errs & E_SUM_PKTERRS) + qib_stats.sps_rcverrs++; + if (errs & E_SUM_ERRS) + qib_stats.sps_txerrs++; + iserr = errs & ~(E_SUM_PKTERRS | QLOGIC_IB_E_PKTERRS | + ERR_MASK(SDmaDisabledErr)); + + if (errs & ERR_MASK(IBStatusChanged)) { + u64 ibcs; + + ibcs = qib_read_kreg64(dd, kr_ibcstatus); + if (!(ppd->lflags & QIBL_IB_AUTONEG_INPROG)) + handle_7220_chase(ppd, ibcs); + + /* Update our picture of width and speed from chip */ + ppd->link_width_active = + ((ibcs >> IBA7220_LINKWIDTH_SHIFT) & 1) ? + IB_WIDTH_4X : IB_WIDTH_1X; + ppd->link_speed_active = + ((ibcs >> IBA7220_LINKSPEED_SHIFT) & 1) ? + QIB_IB_DDR : QIB_IB_SDR; + + /* + * Since going into a recovery state causes the link state + * to go down and since recovery is transitory, it is better + * if we "miss" ever seeing the link training state go into + * recovery (i.e., ignore this transition for link state + * special handling purposes) without updating lastibcstat. + */ + if (qib_7220_phys_portstate(ibcs) != + IB_PHYSPORTSTATE_LINK_ERR_RECOVER) + qib_handle_e_ibstatuschanged(ppd, ibcs); + } + + if (errs & ERR_MASK(ResetNegated)) { + qib_dev_err(dd, + "Got reset, requires re-init (unload and reload driver)\n"); + dd->flags &= ~QIB_INITTED; /* needs re-init */ + /* mark as having had error */ + *dd->devstatusp |= QIB_STATUS_HWERROR; + *dd->pport->statusp &= ~QIB_STATUS_IB_CONF; + } + + if (*msg && iserr) + qib_dev_porterr(dd, ppd->port, "%s error\n", msg); + + if (ppd->state_wanted & ppd->lflags) + wake_up_interruptible(&ppd->state_wait); + + /* + * If there were hdrq or egrfull errors, wake up any processes + * waiting in poll. We used to try to check which contexts had + * the overflow, but given the cost of that and the chip reads + * to support it, it's better to just wake everybody up if we + * get an overflow; waiters can poll again if it's not them. + */ + if (errs & (ERR_MASK(RcvEgrFullErr) | ERR_MASK(RcvHdrFullErr))) { + qib_handle_urcv(dd, ~0U); + if (errs & ERR_MASK(RcvEgrFullErr)) + qib_stats.sps_buffull++; + else + qib_stats.sps_hdrfull++; + } +done: + return; +} + +/* enable/disable chip from delivering interrupts */ +static void qib_7220_set_intr_state(struct qib_devdata *dd, u32 enable) +{ + if (enable) { + if (dd->flags & QIB_BADINTR) + return; + qib_write_kreg(dd, kr_intmask, ~0ULL); + /* force re-interrupt of any pending interrupts. */ + qib_write_kreg(dd, kr_intclear, 0ULL); + } else + qib_write_kreg(dd, kr_intmask, 0ULL); +} + +/* + * Try to cleanup as much as possible for anything that might have gone + * wrong while in freeze mode, such as pio buffers being written by user + * processes (causing armlaunch), send errors due to going into freeze mode, + * etc., and try to avoid causing extra interrupts while doing so. + * Forcibly update the in-memory pioavail register copies after cleanup + * because the chip won't do it while in freeze mode (the register values + * themselves are kept correct). + * Make sure that we don't lose any important interrupts by using the chip + * feature that says that writing 0 to a bit in *clear that is set in + * *status will cause an interrupt to be generated again (if allowed by + * the *mask value). + * This is in chip-specific code because of all of the register accesses, + * even though the details are similar on most chips. + */ +static void qib_7220_clear_freeze(struct qib_devdata *dd) +{ + /* disable error interrupts, to avoid confusion */ + qib_write_kreg(dd, kr_errmask, 0ULL); + + /* also disable interrupts; errormask is sometimes overwritten */ + qib_7220_set_intr_state(dd, 0); + + qib_cancel_sends(dd->pport); + + /* clear the freeze, and be sure chip saw it */ + qib_write_kreg(dd, kr_control, dd->control); + qib_read_kreg32(dd, kr_scratch); + + /* force in-memory update now we are out of freeze */ + qib_force_pio_avail_update(dd); + + /* + * force new interrupt if any hwerr, error or interrupt bits are + * still set, and clear "safe" send packet errors related to freeze + * and cancelling sends. Re-enable error interrupts before possible + * force of re-interrupt on pending interrupts. + */ + qib_write_kreg(dd, kr_hwerrclear, 0ULL); + qib_write_kreg(dd, kr_errclear, E_SPKT_ERRS_IGNORE); + qib_write_kreg(dd, kr_errmask, dd->cspec->errormask); + qib_7220_set_intr_state(dd, 1); +} + +/** + * qib_7220_handle_hwerrors - display hardware errors. + * @dd: the qlogic_ib device + * @msg: the output buffer + * @msgl: the size of the output buffer + * + * Use same msg buffer as regular errors to avoid excessive stack + * use. Most hardware errors are catastrophic, but for right now, + * we'll print them and continue. We reuse the same message buffer as + * handle_7220_errors() to avoid excessive stack usage. + */ +static void qib_7220_handle_hwerrors(struct qib_devdata *dd, char *msg, + size_t msgl) +{ + u64 hwerrs; + u32 bits, ctrl; + int isfatal = 0; + char *bitsmsg; + + hwerrs = qib_read_kreg64(dd, kr_hwerrstatus); + if (!hwerrs) + goto bail; + if (hwerrs == ~0ULL) { + qib_dev_err(dd, + "Read of hardware error status failed (all bits set); ignoring\n"); + goto bail; + } + qib_stats.sps_hwerrs++; + + /* + * Always clear the error status register, except MEMBISTFAIL, + * regardless of whether we continue or stop using the chip. + * We want that set so we know it failed, even across driver reload. + * We'll still ignore it in the hwerrmask. We do this partly for + * diagnostics, but also for support. + */ + qib_write_kreg(dd, kr_hwerrclear, + hwerrs & ~HWE_MASK(PowerOnBISTFailed)); + + hwerrs &= dd->cspec->hwerrmask; + + if (hwerrs & ~(TXEMEMPARITYERR_PIOBUF | TXEMEMPARITYERR_PIOPBC | + RXE_PARITY)) + qib_devinfo(dd->pcidev, + "Hardware error: hwerr=0x%llx (cleared)\n", + (unsigned long long) hwerrs); + + if (hwerrs & ~IB_HWE_BITSEXTANT) + qib_dev_err(dd, + "hwerror interrupt with unknown errors %llx set\n", + (unsigned long long) (hwerrs & ~IB_HWE_BITSEXTANT)); + + if (hwerrs & QLOGIC_IB_HWE_IB_UC_MEMORYPARITYERR) + qib_sd7220_clr_ibpar(dd); + + ctrl = qib_read_kreg32(dd, kr_control); + if ((ctrl & QLOGIC_IB_C_FREEZEMODE) && !dd->diag_client) { + /* + * Parity errors in send memory are recoverable by h/w + * just do housekeeping, exit freeze mode and continue. + */ + if (hwerrs & (TXEMEMPARITYERR_PIOBUF | + TXEMEMPARITYERR_PIOPBC)) { + qib_7220_txe_recover(dd); + hwerrs &= ~(TXEMEMPARITYERR_PIOBUF | + TXEMEMPARITYERR_PIOPBC); + } + if (hwerrs) + isfatal = 1; + else + qib_7220_clear_freeze(dd); + } + + *msg = '\0'; + + if (hwerrs & HWE_MASK(PowerOnBISTFailed)) { + isfatal = 1; + strlcat(msg, + "[Memory BIST test failed, InfiniPath hardware unusable]", + msgl); + /* ignore from now on, so disable until driver reloaded */ + dd->cspec->hwerrmask &= ~HWE_MASK(PowerOnBISTFailed); + qib_write_kreg(dd, kr_hwerrmask, dd->cspec->hwerrmask); + } + + qib_format_hwerrors(hwerrs, qib_7220_hwerror_msgs, + ARRAY_SIZE(qib_7220_hwerror_msgs), msg, msgl); + + bitsmsg = dd->cspec->bitsmsgbuf; + if (hwerrs & (QLOGIC_IB_HWE_PCIEMEMPARITYERR_MASK << + QLOGIC_IB_HWE_PCIEMEMPARITYERR_SHIFT)) { + bits = (u32) ((hwerrs >> + QLOGIC_IB_HWE_PCIEMEMPARITYERR_SHIFT) & + QLOGIC_IB_HWE_PCIEMEMPARITYERR_MASK); + snprintf(bitsmsg, sizeof(dd->cspec->bitsmsgbuf), + "[PCIe Mem Parity Errs %x] ", bits); + strlcat(msg, bitsmsg, msgl); + } + +#define _QIB_PLL_FAIL (QLOGIC_IB_HWE_COREPLL_FBSLIP | \ + QLOGIC_IB_HWE_COREPLL_RFSLIP) + + if (hwerrs & _QIB_PLL_FAIL) { + isfatal = 1; + snprintf(bitsmsg, sizeof(dd->cspec->bitsmsgbuf), + "[PLL failed (%llx), InfiniPath hardware unusable]", + (unsigned long long) hwerrs & _QIB_PLL_FAIL); + strlcat(msg, bitsmsg, msgl); + /* ignore from now on, so disable until driver reloaded */ + dd->cspec->hwerrmask &= ~(hwerrs & _QIB_PLL_FAIL); + qib_write_kreg(dd, kr_hwerrmask, dd->cspec->hwerrmask); + } + + if (hwerrs & QLOGIC_IB_HWE_SERDESPLLFAILED) { + /* + * If it occurs, it is left masked since the eternal + * interface is unused. + */ + dd->cspec->hwerrmask &= ~QLOGIC_IB_HWE_SERDESPLLFAILED; + qib_write_kreg(dd, kr_hwerrmask, dd->cspec->hwerrmask); + } + + qib_dev_err(dd, "%s hardware error\n", msg); + + if (isfatal && !dd->diag_client) { + qib_dev_err(dd, + "Fatal Hardware Error, no longer usable, SN %.16s\n", + dd->serial); + /* + * For /sys status file and user programs to print; if no + * trailing brace is copied, we'll know it was truncated. + */ + if (dd->freezemsg) + snprintf(dd->freezemsg, dd->freezelen, + "{%s}", msg); + qib_disable_after_error(dd); + } +bail:; +} + +/** + * qib_7220_init_hwerrors - enable hardware errors + * @dd: the qlogic_ib device + * + * now that we have finished initializing everything that might reasonably + * cause a hardware error, and cleared those errors bits as they occur, + * we can enable hardware errors in the mask (potentially enabling + * freeze mode), and enable hardware errors as errors (along with + * everything else) in errormask + */ +static void qib_7220_init_hwerrors(struct qib_devdata *dd) +{ + u64 val; + u64 extsval; + + extsval = qib_read_kreg64(dd, kr_extstatus); + + if (!(extsval & (QLOGIC_IB_EXTS_MEMBIST_ENDTEST | + QLOGIC_IB_EXTS_MEMBIST_DISABLED))) + qib_dev_err(dd, "MemBIST did not complete!\n"); + if (extsval & QLOGIC_IB_EXTS_MEMBIST_DISABLED) + qib_devinfo(dd->pcidev, "MemBIST is disabled.\n"); + + val = ~0ULL; /* default to all hwerrors become interrupts, */ + + val &= ~QLOGIC_IB_HWE_IB_UC_MEMORYPARITYERR; + dd->cspec->hwerrmask = val; + + qib_write_kreg(dd, kr_hwerrclear, ~HWE_MASK(PowerOnBISTFailed)); + qib_write_kreg(dd, kr_hwerrmask, dd->cspec->hwerrmask); + + /* clear all */ + qib_write_kreg(dd, kr_errclear, ~0ULL); + /* enable errors that are masked, at least this first time. */ + qib_write_kreg(dd, kr_errmask, ~0ULL); + dd->cspec->errormask = qib_read_kreg64(dd, kr_errmask); + /* clear any interrupts up to this point (ints still not enabled) */ + qib_write_kreg(dd, kr_intclear, ~0ULL); +} + +/* + * Disable and enable the armlaunch error. Used for PIO bandwidth testing + * on chips that are count-based, rather than trigger-based. There is no + * reference counting, but that's also fine, given the intended use. + * Only chip-specific because it's all register accesses + */ +static void qib_set_7220_armlaunch(struct qib_devdata *dd, u32 enable) +{ + if (enable) { + qib_write_kreg(dd, kr_errclear, ERR_MASK(SendPioArmLaunchErr)); + dd->cspec->errormask |= ERR_MASK(SendPioArmLaunchErr); + } else + dd->cspec->errormask &= ~ERR_MASK(SendPioArmLaunchErr); + qib_write_kreg(dd, kr_errmask, dd->cspec->errormask); +} + +/* + * Formerly took parameter <which> in pre-shifted, + * pre-merged form with LinkCmd and LinkInitCmd + * together, and assuming the zero was NOP. + */ +static void qib_set_ib_7220_lstate(struct qib_pportdata *ppd, u16 linkcmd, + u16 linitcmd) +{ + u64 mod_wd; + struct qib_devdata *dd = ppd->dd; + unsigned long flags; + + if (linitcmd == QLOGIC_IB_IBCC_LINKINITCMD_DISABLE) { + /* + * If we are told to disable, note that so link-recovery + * code does not attempt to bring us back up. + */ + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags |= QIBL_IB_LINK_DISABLED; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + } else if (linitcmd || linkcmd == QLOGIC_IB_IBCC_LINKCMD_DOWN) { + /* + * Any other linkinitcmd will lead to LINKDOWN and then + * to INIT (if all is well), so clear flag to let + * link-recovery code attempt to bring us back up. + */ + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~QIBL_IB_LINK_DISABLED; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + } + + mod_wd = (linkcmd << IBA7220_IBCC_LINKCMD_SHIFT) | + (linitcmd << QLOGIC_IB_IBCC_LINKINITCMD_SHIFT); + + qib_write_kreg(dd, kr_ibcctrl, ppd->cpspec->ibcctrl | mod_wd); + /* write to chip to prevent back-to-back writes of ibc reg */ + qib_write_kreg(dd, kr_scratch, 0); +} + +/* + * All detailed interaction with the SerDes has been moved to qib_sd7220.c + * + * The portion of IBA7220-specific bringup_serdes() that actually deals with + * registers and memory within the SerDes itself is qib_sd7220_init(). + */ + +/** + * qib_7220_bringup_serdes - bring up the serdes + * @ppd: physical port on the qlogic_ib device + */ +static int qib_7220_bringup_serdes(struct qib_pportdata *ppd) +{ + struct qib_devdata *dd = ppd->dd; + u64 val, prev_val, guid, ibc; + int ret = 0; + + /* Put IBC in reset, sends disabled */ + dd->control &= ~QLOGIC_IB_C_LINKENABLE; + qib_write_kreg(dd, kr_control, 0ULL); + + if (qib_compat_ddr_negotiate) { + ppd->cpspec->ibdeltainprog = 1; + ppd->cpspec->ibsymsnap = read_7220_creg32(dd, cr_ibsymbolerr); + ppd->cpspec->iblnkerrsnap = + read_7220_creg32(dd, cr_iblinkerrrecov); + } + + /* flowcontrolwatermark is in units of KBytes */ + ibc = 0x5ULL << SYM_LSB(IBCCtrl, FlowCtrlWaterMark); + /* + * How often flowctrl sent. More or less in usecs; balance against + * watermark value, so that in theory senders always get a flow + * control update in time to not let the IB link go idle. + */ + ibc |= 0x3ULL << SYM_LSB(IBCCtrl, FlowCtrlPeriod); + /* max error tolerance */ + ibc |= 0xfULL << SYM_LSB(IBCCtrl, PhyerrThreshold); + /* use "real" buffer space for */ + ibc |= 4ULL << SYM_LSB(IBCCtrl, CreditScale); + /* IB credit flow control. */ + ibc |= 0xfULL << SYM_LSB(IBCCtrl, OverrunThreshold); + /* + * set initial max size pkt IBC will send, including ICRC; it's the + * PIO buffer size in dwords, less 1; also see qib_set_mtu() + */ + ibc |= ((u64)(ppd->ibmaxlen >> 2) + 1) << SYM_LSB(IBCCtrl, MaxPktLen); + ppd->cpspec->ibcctrl = ibc; /* without linkcmd or linkinitcmd! */ + + /* initially come up waiting for TS1, without sending anything. */ + val = ppd->cpspec->ibcctrl | (QLOGIC_IB_IBCC_LINKINITCMD_DISABLE << + QLOGIC_IB_IBCC_LINKINITCMD_SHIFT); + qib_write_kreg(dd, kr_ibcctrl, val); + + if (!ppd->cpspec->ibcddrctrl) { + /* not on re-init after reset */ + ppd->cpspec->ibcddrctrl = qib_read_kreg64(dd, kr_ibcddrctrl); + + if (ppd->link_speed_enabled == (QIB_IB_SDR | QIB_IB_DDR)) + ppd->cpspec->ibcddrctrl |= + IBA7220_IBC_SPEED_AUTONEG_MASK | + IBA7220_IBC_IBTA_1_2_MASK; + else + ppd->cpspec->ibcddrctrl |= + ppd->link_speed_enabled == QIB_IB_DDR ? + IBA7220_IBC_SPEED_DDR : IBA7220_IBC_SPEED_SDR; + if ((ppd->link_width_enabled & (IB_WIDTH_1X | IB_WIDTH_4X)) == + (IB_WIDTH_1X | IB_WIDTH_4X)) + ppd->cpspec->ibcddrctrl |= IBA7220_IBC_WIDTH_AUTONEG; + else + ppd->cpspec->ibcddrctrl |= + ppd->link_width_enabled == IB_WIDTH_4X ? + IBA7220_IBC_WIDTH_4X_ONLY : + IBA7220_IBC_WIDTH_1X_ONLY; + + /* always enable these on driver reload, not sticky */ + ppd->cpspec->ibcddrctrl |= + IBA7220_IBC_RXPOL_MASK << IBA7220_IBC_RXPOL_SHIFT; + ppd->cpspec->ibcddrctrl |= + IBA7220_IBC_HRTBT_MASK << IBA7220_IBC_HRTBT_SHIFT; + + /* enable automatic lane reversal detection for receive */ + ppd->cpspec->ibcddrctrl |= IBA7220_IBC_LANE_REV_SUPPORTED; + } else + /* write to chip to prevent back-to-back writes of ibc reg */ + qib_write_kreg(dd, kr_scratch, 0); + + qib_write_kreg(dd, kr_ibcddrctrl, ppd->cpspec->ibcddrctrl); + qib_write_kreg(dd, kr_scratch, 0); + + qib_write_kreg(dd, kr_ncmodectrl, 0Ull); + qib_write_kreg(dd, kr_scratch, 0); + + ret = qib_sd7220_init(dd); + + val = qib_read_kreg64(dd, kr_xgxs_cfg); + prev_val = val; + val |= QLOGIC_IB_XGXS_FC_SAFE; + if (val != prev_val) { + qib_write_kreg(dd, kr_xgxs_cfg, val); + qib_read_kreg32(dd, kr_scratch); + } + if (val & QLOGIC_IB_XGXS_RESET) + val &= ~QLOGIC_IB_XGXS_RESET; + if (val != prev_val) + qib_write_kreg(dd, kr_xgxs_cfg, val); + + /* first time through, set port guid */ + if (!ppd->guid) + ppd->guid = dd->base_guid; + guid = be64_to_cpu(ppd->guid); + + qib_write_kreg(dd, kr_hrtbt_guid, guid); + if (!ret) { + dd->control |= QLOGIC_IB_C_LINKENABLE; + qib_write_kreg(dd, kr_control, dd->control); + } else + /* write to chip to prevent back-to-back writes of ibc reg */ + qib_write_kreg(dd, kr_scratch, 0); + return ret; +} + +/** + * qib_7220_quiet_serdes - set serdes to txidle + * @ppd: physical port of the qlogic_ib device + * Called when driver is being unloaded + */ +static void qib_7220_quiet_serdes(struct qib_pportdata *ppd) +{ + u64 val; + struct qib_devdata *dd = ppd->dd; + unsigned long flags; + + /* disable IBC */ + dd->control &= ~QLOGIC_IB_C_LINKENABLE; + qib_write_kreg(dd, kr_control, + dd->control | QLOGIC_IB_C_FREEZEMODE); + + ppd->cpspec->chase_end = 0; + if (ppd->cpspec->chase_timer.function) /* if initted */ + del_timer_sync(&ppd->cpspec->chase_timer); + + if (ppd->cpspec->ibsymdelta || ppd->cpspec->iblnkerrdelta || + ppd->cpspec->ibdeltainprog) { + u64 diagc; + + /* enable counter writes */ + diagc = qib_read_kreg64(dd, kr_hwdiagctrl); + qib_write_kreg(dd, kr_hwdiagctrl, + diagc | SYM_MASK(HwDiagCtrl, CounterWrEnable)); + + if (ppd->cpspec->ibsymdelta || ppd->cpspec->ibdeltainprog) { + val = read_7220_creg32(dd, cr_ibsymbolerr); + if (ppd->cpspec->ibdeltainprog) + val -= val - ppd->cpspec->ibsymsnap; + val -= ppd->cpspec->ibsymdelta; + write_7220_creg(dd, cr_ibsymbolerr, val); + } + if (ppd->cpspec->iblnkerrdelta || ppd->cpspec->ibdeltainprog) { + val = read_7220_creg32(dd, cr_iblinkerrrecov); + if (ppd->cpspec->ibdeltainprog) + val -= val - ppd->cpspec->iblnkerrsnap; + val -= ppd->cpspec->iblnkerrdelta; + write_7220_creg(dd, cr_iblinkerrrecov, val); + } + + /* and disable counter writes */ + qib_write_kreg(dd, kr_hwdiagctrl, diagc); + } + qib_set_ib_7220_lstate(ppd, 0, QLOGIC_IB_IBCC_LINKINITCMD_DISABLE); + + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~QIBL_IB_AUTONEG_INPROG; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + wake_up(&ppd->cpspec->autoneg_wait); + cancel_delayed_work_sync(&ppd->cpspec->autoneg_work); + + shutdown_7220_relock_poll(ppd->dd); + val = qib_read_kreg64(ppd->dd, kr_xgxs_cfg); + val |= QLOGIC_IB_XGXS_RESET; + qib_write_kreg(ppd->dd, kr_xgxs_cfg, val); +} + +/** + * qib_setup_7220_setextled - set the state of the two external LEDs + * @ppd: the qlogic_ib device + * @on: whether the link is up or not + * + * The exact combo of LEDs if on is true is determined by looking + * at the ibcstatus. + * + * These LEDs indicate the physical and logical state of IB link. + * For this chip (at least with recommended board pinouts), LED1 + * is Yellow (logical state) and LED2 is Green (physical state), + * + * Note: We try to match the Mellanox HCA LED behavior as best + * we can. Green indicates physical link state is OK (something is + * plugged in, and we can train). + * Amber indicates the link is logically up (ACTIVE). + * Mellanox further blinks the amber LED to indicate data packet + * activity, but we have no hardware support for that, so it would + * require waking up every 10-20 msecs and checking the counters + * on the chip, and then turning the LED off if appropriate. That's + * visible overhead, so not something we will do. + * + */ +static void qib_setup_7220_setextled(struct qib_pportdata *ppd, u32 on) +{ + struct qib_devdata *dd = ppd->dd; + u64 extctl, ledblink = 0, val, lst, ltst; + unsigned long flags; + + /* + * The diags use the LED to indicate diag info, so we leave + * the external LED alone when the diags are running. + */ + if (dd->diag_client) + return; + + if (ppd->led_override) { + ltst = (ppd->led_override & QIB_LED_PHYS) ? + IB_PHYSPORTSTATE_LINKUP : IB_PHYSPORTSTATE_DISABLED, + lst = (ppd->led_override & QIB_LED_LOG) ? + IB_PORT_ACTIVE : IB_PORT_DOWN; + } else if (on) { + val = qib_read_kreg64(dd, kr_ibcstatus); + ltst = qib_7220_phys_portstate(val); + lst = qib_7220_iblink_state(val); + } else { + ltst = 0; + lst = 0; + } + + spin_lock_irqsave(&dd->cspec->gpio_lock, flags); + extctl = dd->cspec->extctrl & ~(SYM_MASK(EXTCtrl, LEDPriPortGreenOn) | + SYM_MASK(EXTCtrl, LEDPriPortYellowOn)); + if (ltst == IB_PHYSPORTSTATE_LINKUP) { + extctl |= SYM_MASK(EXTCtrl, LEDPriPortGreenOn); + /* + * counts are in chip clock (4ns) periods. + * This is 1/16 sec (66.6ms) on, + * 3/16 sec (187.5 ms) off, with packets rcvd + */ + ledblink = ((66600 * 1000UL / 4) << IBA7220_LEDBLINK_ON_SHIFT) + | ((187500 * 1000UL / 4) << IBA7220_LEDBLINK_OFF_SHIFT); + } + if (lst == IB_PORT_ACTIVE) + extctl |= SYM_MASK(EXTCtrl, LEDPriPortYellowOn); + dd->cspec->extctrl = extctl; + qib_write_kreg(dd, kr_extctrl, extctl); + spin_unlock_irqrestore(&dd->cspec->gpio_lock, flags); + + if (ledblink) /* blink the LED on packet receive */ + qib_write_kreg(dd, kr_rcvpktledcnt, ledblink); +} + +/* + * qib_setup_7220_cleanup - clean up any per-chip chip-specific stuff + * @dd: the qlogic_ib device + * + * This is called during driver unload. + * + */ +static void qib_setup_7220_cleanup(struct qib_devdata *dd) +{ + qib_free_irq(dd); + kfree(dd->cspec->cntrs); + kfree(dd->cspec->portcntrs); +} + +/* + * This is only called for SDmaInt. + * SDmaDisabled is handled on the error path. + */ +static void sdma_7220_intr(struct qib_pportdata *ppd, u64 istat) +{ + unsigned long flags; + + spin_lock_irqsave(&ppd->sdma_lock, flags); + + switch (ppd->sdma_state.current_state) { + case qib_sdma_state_s00_hw_down: + break; + + case qib_sdma_state_s10_hw_start_up_wait: + __qib_sdma_process_event(ppd, qib_sdma_event_e20_hw_started); + break; + + case qib_sdma_state_s20_idle: + break; + + case qib_sdma_state_s30_sw_clean_up_wait: + break; + + case qib_sdma_state_s40_hw_clean_up_wait: + break; + + case qib_sdma_state_s50_hw_halt_wait: + __qib_sdma_process_event(ppd, qib_sdma_event_e60_hw_halted); + break; + + case qib_sdma_state_s99_running: + /* too chatty to print here */ + __qib_sdma_intr(ppd); + break; + } + spin_unlock_irqrestore(&ppd->sdma_lock, flags); +} + +static void qib_wantpiobuf_7220_intr(struct qib_devdata *dd, u32 needint) +{ + unsigned long flags; + + spin_lock_irqsave(&dd->sendctrl_lock, flags); + if (needint) { + if (!(dd->sendctrl & SYM_MASK(SendCtrl, SendBufAvailUpd))) + goto done; + /* + * blip the availupd off, next write will be on, so + * we ensure an avail update, regardless of threshold or + * buffers becoming free, whenever we want an interrupt + */ + qib_write_kreg(dd, kr_sendctrl, dd->sendctrl & + ~SYM_MASK(SendCtrl, SendBufAvailUpd)); + qib_write_kreg(dd, kr_scratch, 0ULL); + dd->sendctrl |= SYM_MASK(SendCtrl, SendIntBufAvail); + } else + dd->sendctrl &= ~SYM_MASK(SendCtrl, SendIntBufAvail); + qib_write_kreg(dd, kr_sendctrl, dd->sendctrl); + qib_write_kreg(dd, kr_scratch, 0ULL); +done: + spin_unlock_irqrestore(&dd->sendctrl_lock, flags); +} + +/* + * Handle errors and unusual events first, separate function + * to improve cache hits for fast path interrupt handling. + */ +static noinline void unlikely_7220_intr(struct qib_devdata *dd, u64 istat) +{ + if (unlikely(istat & ~QLOGIC_IB_I_BITSEXTANT)) + qib_dev_err(dd, + "interrupt with unknown interrupts %Lx set\n", + istat & ~QLOGIC_IB_I_BITSEXTANT); + + if (istat & QLOGIC_IB_I_GPIO) { + u32 gpiostatus; + + /* + * Boards for this chip currently don't use GPIO interrupts, + * so clear by writing GPIOstatus to GPIOclear, and complain + * to alert developer. To avoid endless repeats, clear + * the bits in the mask, since there is some kind of + * programming error or chip problem. + */ + gpiostatus = qib_read_kreg32(dd, kr_gpio_status); + /* + * In theory, writing GPIOstatus to GPIOclear could + * have a bad side-effect on some diagnostic that wanted + * to poll for a status-change, but the various shadows + * make that problematic at best. Diags will just suppress + * all GPIO interrupts during such tests. + */ + qib_write_kreg(dd, kr_gpio_clear, gpiostatus); + + if (gpiostatus) { + const u32 mask = qib_read_kreg32(dd, kr_gpio_mask); + u32 gpio_irq = mask & gpiostatus; + + /* + * A bit set in status and (chip) Mask register + * would cause an interrupt. Since we are not + * expecting any, report it. Also check that the + * chip reflects our shadow, report issues, + * and refresh from the shadow. + */ + /* + * Clear any troublemakers, and update chip + * from shadow + */ + dd->cspec->gpio_mask &= ~gpio_irq; + qib_write_kreg(dd, kr_gpio_mask, dd->cspec->gpio_mask); + } + } + + if (istat & QLOGIC_IB_I_ERROR) { + u64 estat; + + qib_stats.sps_errints++; + estat = qib_read_kreg64(dd, kr_errstatus); + if (!estat) + qib_devinfo(dd->pcidev, + "error interrupt (%Lx), but no error bits set!\n", + istat); + else + handle_7220_errors(dd, estat); + } +} + +static irqreturn_t qib_7220intr(int irq, void *data) +{ + struct qib_devdata *dd = data; + irqreturn_t ret; + u64 istat; + u64 ctxtrbits; + u64 rmask; + unsigned i; + + if ((dd->flags & (QIB_PRESENT | QIB_BADINTR)) != QIB_PRESENT) { + /* + * This return value is not great, but we do not want the + * interrupt core code to remove our interrupt handler + * because we don't appear to be handling an interrupt + * during a chip reset. + */ + ret = IRQ_HANDLED; + goto bail; + } + + istat = qib_read_kreg64(dd, kr_intstatus); + + if (unlikely(!istat)) { + ret = IRQ_NONE; /* not our interrupt, or already handled */ + goto bail; + } + if (unlikely(istat == -1)) { + qib_bad_intrstatus(dd); + /* don't know if it was our interrupt or not */ + ret = IRQ_NONE; + goto bail; + } + + this_cpu_inc(*dd->int_counter); + if (unlikely(istat & (~QLOGIC_IB_I_BITSEXTANT | + QLOGIC_IB_I_GPIO | QLOGIC_IB_I_ERROR))) + unlikely_7220_intr(dd, istat); + + /* + * Clear the interrupt bits we found set, relatively early, so we + * "know" know the chip will have seen this by the time we process + * the queue, and will re-interrupt if necessary. The processor + * itself won't take the interrupt again until we return. + */ + qib_write_kreg(dd, kr_intclear, istat); + + /* + * Handle kernel receive queues before checking for pio buffers + * available since receives can overflow; piobuf waiters can afford + * a few extra cycles, since they were waiting anyway. + */ + ctxtrbits = istat & + ((QLOGIC_IB_I_RCVAVAIL_MASK << QLOGIC_IB_I_RCVAVAIL_SHIFT) | + (QLOGIC_IB_I_RCVURG_MASK << QLOGIC_IB_I_RCVURG_SHIFT)); + if (ctxtrbits) { + rmask = (1ULL << QLOGIC_IB_I_RCVAVAIL_SHIFT) | + (1ULL << QLOGIC_IB_I_RCVURG_SHIFT); + for (i = 0; i < dd->first_user_ctxt; i++) { + if (ctxtrbits & rmask) { + ctxtrbits &= ~rmask; + qib_kreceive(dd->rcd[i], NULL, NULL); + } + rmask <<= 1; + } + if (ctxtrbits) { + ctxtrbits = + (ctxtrbits >> QLOGIC_IB_I_RCVAVAIL_SHIFT) | + (ctxtrbits >> QLOGIC_IB_I_RCVURG_SHIFT); + qib_handle_urcv(dd, ctxtrbits); + } + } + + /* only call for SDmaInt */ + if (istat & QLOGIC_IB_I_SDMAINT) + sdma_7220_intr(dd->pport, istat); + + if ((istat & QLOGIC_IB_I_SPIOBUFAVAIL) && (dd->flags & QIB_INITTED)) + qib_ib_piobufavail(dd); + + ret = IRQ_HANDLED; +bail: + return ret; +} + +/* + * Set up our chip-specific interrupt handler. + * The interrupt type has already been setup, so + * we just need to do the registration and error checking. + * If we are using MSI interrupts, we may fall back to + * INTx later, if the interrupt handler doesn't get called + * within 1/2 second (see verify_interrupt()). + */ +static void qib_setup_7220_interrupt(struct qib_devdata *dd) +{ + int ret; + + ret = pci_request_irq(dd->pcidev, 0, qib_7220intr, NULL, dd, + QIB_DRV_NAME); + if (ret) + qib_dev_err(dd, "Couldn't setup %s interrupt (irq=%d): %d\n", + dd->pcidev->msi_enabled ? "MSI" : "INTx", + pci_irq_vector(dd->pcidev, 0), ret); +} + +/** + * qib_7220_boardname - fill in the board name + * @dd: the qlogic_ib device + * + * info is based on the board revision register + */ +static void qib_7220_boardname(struct qib_devdata *dd) +{ + u32 boardid; + + boardid = SYM_FIELD(dd->revision, Revision, + BoardID); + + switch (boardid) { + case 1: + dd->boardname = "InfiniPath_QLE7240"; + break; + case 2: + dd->boardname = "InfiniPath_QLE7280"; + break; + default: + qib_dev_err(dd, "Unknown 7220 board with ID %u\n", boardid); + dd->boardname = "Unknown_InfiniPath_7220"; + break; + } + + if (dd->majrev != 5 || !dd->minrev || dd->minrev > 2) + qib_dev_err(dd, + "Unsupported InfiniPath hardware revision %u.%u!\n", + dd->majrev, dd->minrev); + + snprintf(dd->boardversion, sizeof(dd->boardversion), + "ChipABI %u.%u, %s, InfiniPath%u %u.%u, SW Compat %u\n", + QIB_CHIP_VERS_MAJ, QIB_CHIP_VERS_MIN, dd->boardname, + (unsigned int)SYM_FIELD(dd->revision, Revision_R, Arch), + dd->majrev, dd->minrev, + (unsigned int)SYM_FIELD(dd->revision, Revision_R, SW)); +} + +/* + * This routine sleeps, so it can only be called from user context, not + * from interrupt context. + */ +static int qib_setup_7220_reset(struct qib_devdata *dd) +{ + u64 val; + int i; + int ret; + u16 cmdval; + u8 int_line, clinesz; + unsigned long flags; + + qib_pcie_getcmd(dd, &cmdval, &int_line, &clinesz); + + /* Use dev_err so it shows up in logs, etc. */ + qib_dev_err(dd, "Resetting InfiniPath unit %u\n", dd->unit); + + /* no interrupts till re-initted */ + qib_7220_set_intr_state(dd, 0); + + dd->pport->cpspec->ibdeltainprog = 0; + dd->pport->cpspec->ibsymdelta = 0; + dd->pport->cpspec->iblnkerrdelta = 0; + + /* + * Keep chip from being accessed until we are ready. Use + * writeq() directly, to allow the write even though QIB_PRESENT + * isn't set. + */ + dd->flags &= ~(QIB_INITTED | QIB_PRESENT); + /* so we check interrupts work again */ + dd->z_int_counter = qib_int_counter(dd); + val = dd->control | QLOGIC_IB_C_RESET; + writeq(val, &dd->kregbase[kr_control]); + mb(); /* prevent compiler reordering around actual reset */ + + for (i = 1; i <= 5; i++) { + /* + * Allow MBIST, etc. to complete; longer on each retry. + * We sometimes get machine checks from bus timeout if no + * response, so for now, make it *really* long. + */ + msleep(1000 + (1 + i) * 2000); + + qib_pcie_reenable(dd, cmdval, int_line, clinesz); + + /* + * Use readq directly, so we don't need to mark it as PRESENT + * until we get a successful indication that all is well. + */ + val = readq(&dd->kregbase[kr_revision]); + if (val == dd->revision) { + dd->flags |= QIB_PRESENT; /* it's back */ + ret = qib_reinit_intr(dd); + goto bail; + } + } + ret = 0; /* failed */ + +bail: + if (ret) { + if (qib_pcie_params(dd, dd->lbus_width, NULL)) + qib_dev_err(dd, + "Reset failed to setup PCIe or interrupts; continuing anyway\n"); + + /* hold IBC in reset, no sends, etc till later */ + qib_write_kreg(dd, kr_control, 0ULL); + + /* clear the reset error, init error/hwerror mask */ + qib_7220_init_hwerrors(dd); + + /* do setup similar to speed or link-width changes */ + if (dd->pport->cpspec->ibcddrctrl & IBA7220_IBC_IBTA_1_2_MASK) + dd->cspec->presets_needed = 1; + spin_lock_irqsave(&dd->pport->lflags_lock, flags); + dd->pport->lflags |= QIBL_IB_FORCE_NOTIFY; + dd->pport->lflags &= ~QIBL_IB_AUTONEG_FAILED; + spin_unlock_irqrestore(&dd->pport->lflags_lock, flags); + } + + return ret; +} + +/** + * qib_7220_put_tid - write a TID to the chip + * @dd: the qlogic_ib device + * @tidptr: pointer to the expected TID (in chip) to update + * @type: 0 for eager, 1 for expected + * @pa: physical address of in memory buffer; tidinvalid if freeing + */ +static void qib_7220_put_tid(struct qib_devdata *dd, u64 __iomem *tidptr, + u32 type, unsigned long pa) +{ + if (pa != dd->tidinvalid) { + u64 chippa = pa >> IBA7220_TID_PA_SHIFT; + + /* paranoia checks */ + if (pa != (chippa << IBA7220_TID_PA_SHIFT)) { + qib_dev_err(dd, "Physaddr %lx not 2KB aligned!\n", + pa); + return; + } + if (chippa >= (1UL << IBA7220_TID_SZ_SHIFT)) { + qib_dev_err(dd, + "Physical page address 0x%lx larger than supported\n", + pa); + return; + } + + if (type == RCVHQ_RCV_TYPE_EAGER) + chippa |= dd->tidtemplate; + else /* for now, always full 4KB page */ + chippa |= IBA7220_TID_SZ_4K; + pa = chippa; + } + writeq(pa, tidptr); +} + +/** + * qib_7220_clear_tids - clear all TID entries for a ctxt, expected and eager + * @dd: the qlogic_ib device + * @rcd: the ctxt + * + * clear all TID entries for a ctxt, expected and eager. + * Used from qib_close(). On this chip, TIDs are only 32 bits, + * not 64, but they are still on 64 bit boundaries, so tidbase + * is declared as u64 * for the pointer math, even though we write 32 bits + */ +static void qib_7220_clear_tids(struct qib_devdata *dd, + struct qib_ctxtdata *rcd) +{ + u64 __iomem *tidbase; + unsigned long tidinv; + u32 ctxt; + int i; + + if (!dd->kregbase || !rcd) + return; + + ctxt = rcd->ctxt; + + tidinv = dd->tidinvalid; + tidbase = (u64 __iomem *) + ((char __iomem *)(dd->kregbase) + + dd->rcvtidbase + + ctxt * dd->rcvtidcnt * sizeof(*tidbase)); + + for (i = 0; i < dd->rcvtidcnt; i++) + qib_7220_put_tid(dd, &tidbase[i], RCVHQ_RCV_TYPE_EXPECTED, + tidinv); + + tidbase = (u64 __iomem *) + ((char __iomem *)(dd->kregbase) + + dd->rcvegrbase + + rcd->rcvegr_tid_base * sizeof(*tidbase)); + + for (i = 0; i < rcd->rcvegrcnt; i++) + qib_7220_put_tid(dd, &tidbase[i], RCVHQ_RCV_TYPE_EAGER, + tidinv); +} + +/** + * qib_7220_tidtemplate - setup constants for TID updates + * @dd: the qlogic_ib device + * + * We setup stuff that we use a lot, to avoid calculating each time + */ +static void qib_7220_tidtemplate(struct qib_devdata *dd) +{ + if (dd->rcvegrbufsize == 2048) + dd->tidtemplate = IBA7220_TID_SZ_2K; + else if (dd->rcvegrbufsize == 4096) + dd->tidtemplate = IBA7220_TID_SZ_4K; + dd->tidinvalid = 0; +} + +/** + * qib_7220_get_base_info - set chip-specific flags for user code + * @rcd: the qlogic_ib ctxt + * @kinfo: qib_base_info pointer + * + * We set the PCIE flag because the lower bandwidth on PCIe vs + * HyperTransport can affect some user packet algorithims. + */ +static int qib_7220_get_base_info(struct qib_ctxtdata *rcd, + struct qib_base_info *kinfo) +{ + kinfo->spi_runtime_flags |= QIB_RUNTIME_PCIE | + QIB_RUNTIME_NODMA_RTAIL | QIB_RUNTIME_SDMA; + + if (rcd->dd->flags & QIB_USE_SPCL_TRIG) + kinfo->spi_runtime_flags |= QIB_RUNTIME_SPECIAL_TRIGGER; + + return 0; +} + +static struct qib_message_header * +qib_7220_get_msgheader(struct qib_devdata *dd, __le32 *rhf_addr) +{ + u32 offset = qib_hdrget_offset(rhf_addr); + + return (struct qib_message_header *) + (rhf_addr - dd->rhf_offset + offset); +} + +static void qib_7220_config_ctxts(struct qib_devdata *dd) +{ + unsigned long flags; + u32 nchipctxts; + + nchipctxts = qib_read_kreg32(dd, kr_portcnt); + dd->cspec->numctxts = nchipctxts; + if (qib_n_krcv_queues > 1) { + dd->qpn_mask = 0x3e; + dd->first_user_ctxt = qib_n_krcv_queues * dd->num_pports; + if (dd->first_user_ctxt > nchipctxts) + dd->first_user_ctxt = nchipctxts; + } else + dd->first_user_ctxt = dd->num_pports; + dd->n_krcv_queues = dd->first_user_ctxt; + + if (!qib_cfgctxts) { + int nctxts = dd->first_user_ctxt + num_online_cpus(); + + if (nctxts <= 5) + dd->ctxtcnt = 5; + else if (nctxts <= 9) + dd->ctxtcnt = 9; + else if (nctxts <= nchipctxts) + dd->ctxtcnt = nchipctxts; + } else if (qib_cfgctxts <= nchipctxts) + dd->ctxtcnt = qib_cfgctxts; + if (!dd->ctxtcnt) /* none of the above, set to max */ + dd->ctxtcnt = nchipctxts; + + /* + * Chip can be configured for 5, 9, or 17 ctxts, and choice + * affects number of eager TIDs per ctxt (1K, 2K, 4K). + * Lock to be paranoid about later motion, etc. + */ + spin_lock_irqsave(&dd->cspec->rcvmod_lock, flags); + if (dd->ctxtcnt > 9) + dd->rcvctrl |= 2ULL << IBA7220_R_CTXTCFG_SHIFT; + else if (dd->ctxtcnt > 5) + dd->rcvctrl |= 1ULL << IBA7220_R_CTXTCFG_SHIFT; + /* else configure for default 5 receive ctxts */ + if (dd->qpn_mask) + dd->rcvctrl |= 1ULL << QIB_7220_RcvCtrl_RcvQPMapEnable_LSB; + qib_write_kreg(dd, kr_rcvctrl, dd->rcvctrl); + spin_unlock_irqrestore(&dd->cspec->rcvmod_lock, flags); + + /* kr_rcvegrcnt changes based on the number of contexts enabled */ + dd->cspec->rcvegrcnt = qib_read_kreg32(dd, kr_rcvegrcnt); + dd->rcvhdrcnt = max(dd->cspec->rcvegrcnt, IBA7220_KRCVEGRCNT); +} + +static int qib_7220_get_ib_cfg(struct qib_pportdata *ppd, int which) +{ + int lsb, ret = 0; + u64 maskr; /* right-justified mask */ + + switch (which) { + case QIB_IB_CFG_LWID_ENB: /* Get allowed Link-width */ + ret = ppd->link_width_enabled; + goto done; + + case QIB_IB_CFG_LWID: /* Get currently active Link-width */ + ret = ppd->link_width_active; + goto done; + + case QIB_IB_CFG_SPD_ENB: /* Get allowed Link speeds */ + ret = ppd->link_speed_enabled; + goto done; + + case QIB_IB_CFG_SPD: /* Get current Link spd */ + ret = ppd->link_speed_active; + goto done; + + case QIB_IB_CFG_RXPOL_ENB: /* Get Auto-RX-polarity enable */ + lsb = IBA7220_IBC_RXPOL_SHIFT; + maskr = IBA7220_IBC_RXPOL_MASK; + break; + + case QIB_IB_CFG_LREV_ENB: /* Get Auto-Lane-reversal enable */ + lsb = IBA7220_IBC_LREV_SHIFT; + maskr = IBA7220_IBC_LREV_MASK; + break; + + case QIB_IB_CFG_LINKLATENCY: + ret = qib_read_kreg64(ppd->dd, kr_ibcddrstatus) + & IBA7220_DDRSTAT_LINKLAT_MASK; + goto done; + + case QIB_IB_CFG_OP_VLS: + ret = ppd->vls_operational; + goto done; + + case QIB_IB_CFG_VL_HIGH_CAP: + ret = 0; + goto done; + + case QIB_IB_CFG_VL_LOW_CAP: + ret = 0; + goto done; + + case QIB_IB_CFG_OVERRUN_THRESH: /* IB overrun threshold */ + ret = SYM_FIELD(ppd->cpspec->ibcctrl, IBCCtrl, + OverrunThreshold); + goto done; + + case QIB_IB_CFG_PHYERR_THRESH: /* IB PHY error threshold */ + ret = SYM_FIELD(ppd->cpspec->ibcctrl, IBCCtrl, + PhyerrThreshold); + goto done; + + case QIB_IB_CFG_LINKDEFAULT: /* IB link default (sleep/poll) */ + /* will only take effect when the link state changes */ + ret = (ppd->cpspec->ibcctrl & + SYM_MASK(IBCCtrl, LinkDownDefaultState)) ? + IB_LINKINITCMD_SLEEP : IB_LINKINITCMD_POLL; + goto done; + + case QIB_IB_CFG_HRTBT: /* Get Heartbeat off/enable/auto */ + lsb = IBA7220_IBC_HRTBT_SHIFT; + maskr = IBA7220_IBC_HRTBT_MASK; + break; + + case QIB_IB_CFG_PMA_TICKS: + /* + * 0x00 = 10x link transfer rate or 4 nsec. for 2.5Gbs + * Since the clock is always 250MHz, the value is 1 or 0. + */ + ret = (ppd->link_speed_active == QIB_IB_DDR); + goto done; + + default: + ret = -EINVAL; + goto done; + } + ret = (int)((ppd->cpspec->ibcddrctrl >> lsb) & maskr); +done: + return ret; +} + +static int qib_7220_set_ib_cfg(struct qib_pportdata *ppd, int which, u32 val) +{ + struct qib_devdata *dd = ppd->dd; + u64 maskr; /* right-justified mask */ + int lsb, ret = 0, setforce = 0; + u16 lcmd, licmd; + unsigned long flags; + u32 tmp = 0; + + switch (which) { + case QIB_IB_CFG_LIDLMC: + /* + * Set LID and LMC. Combined to avoid possible hazard + * caller puts LMC in 16MSbits, DLID in 16LSbits of val + */ + lsb = IBA7220_IBC_DLIDLMC_SHIFT; + maskr = IBA7220_IBC_DLIDLMC_MASK; + break; + + case QIB_IB_CFG_LWID_ENB: /* set allowed Link-width */ + /* + * As with speed, only write the actual register if + * the link is currently down, otherwise takes effect + * on next link change. + */ + ppd->link_width_enabled = val; + if (!(ppd->lflags & QIBL_LINKDOWN)) + goto bail; + /* + * We set the QIBL_IB_FORCE_NOTIFY bit so updown + * will get called because we want update + * link_width_active, and the change may not take + * effect for some time (if we are in POLL), so this + * flag will force the updown routine to be called + * on the next ibstatuschange down interrupt, even + * if it's not an down->up transition. + */ + val--; /* convert from IB to chip */ + maskr = IBA7220_IBC_WIDTH_MASK; + lsb = IBA7220_IBC_WIDTH_SHIFT; + setforce = 1; + break; + + case QIB_IB_CFG_SPD_ENB: /* set allowed Link speeds */ + /* + * If we turn off IB1.2, need to preset SerDes defaults, + * but not right now. Set a flag for the next time + * we command the link down. As with width, only write the + * actual register if the link is currently down, otherwise + * takes effect on next link change. Since setting is being + * explicitly requested (via MAD or sysfs), clear autoneg + * failure status if speed autoneg is enabled. + */ + ppd->link_speed_enabled = val; + if ((ppd->cpspec->ibcddrctrl & IBA7220_IBC_IBTA_1_2_MASK) && + !(val & (val - 1))) + dd->cspec->presets_needed = 1; + if (!(ppd->lflags & QIBL_LINKDOWN)) + goto bail; + /* + * We set the QIBL_IB_FORCE_NOTIFY bit so updown + * will get called because we want update + * link_speed_active, and the change may not take + * effect for some time (if we are in POLL), so this + * flag will force the updown routine to be called + * on the next ibstatuschange down interrupt, even + * if it's not an down->up transition. + */ + if (val == (QIB_IB_SDR | QIB_IB_DDR)) { + val = IBA7220_IBC_SPEED_AUTONEG_MASK | + IBA7220_IBC_IBTA_1_2_MASK; + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~QIBL_IB_AUTONEG_FAILED; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + } else + val = val == QIB_IB_DDR ? + IBA7220_IBC_SPEED_DDR : IBA7220_IBC_SPEED_SDR; + maskr = IBA7220_IBC_SPEED_AUTONEG_MASK | + IBA7220_IBC_IBTA_1_2_MASK; + /* IBTA 1.2 mode + speed bits are contiguous */ + lsb = SYM_LSB(IBCDDRCtrl, IB_ENHANCED_MODE); + setforce = 1; + break; + + case QIB_IB_CFG_RXPOL_ENB: /* set Auto-RX-polarity enable */ + lsb = IBA7220_IBC_RXPOL_SHIFT; + maskr = IBA7220_IBC_RXPOL_MASK; + break; + + case QIB_IB_CFG_LREV_ENB: /* set Auto-Lane-reversal enable */ + lsb = IBA7220_IBC_LREV_SHIFT; + maskr = IBA7220_IBC_LREV_MASK; + break; + + case QIB_IB_CFG_OVERRUN_THRESH: /* IB overrun threshold */ + maskr = SYM_FIELD(ppd->cpspec->ibcctrl, IBCCtrl, + OverrunThreshold); + if (maskr != val) { + ppd->cpspec->ibcctrl &= + ~SYM_MASK(IBCCtrl, OverrunThreshold); + ppd->cpspec->ibcctrl |= (u64) val << + SYM_LSB(IBCCtrl, OverrunThreshold); + qib_write_kreg(dd, kr_ibcctrl, ppd->cpspec->ibcctrl); + qib_write_kreg(dd, kr_scratch, 0); + } + goto bail; + + case QIB_IB_CFG_PHYERR_THRESH: /* IB PHY error threshold */ + maskr = SYM_FIELD(ppd->cpspec->ibcctrl, IBCCtrl, + PhyerrThreshold); + if (maskr != val) { + ppd->cpspec->ibcctrl &= + ~SYM_MASK(IBCCtrl, PhyerrThreshold); + ppd->cpspec->ibcctrl |= (u64) val << + SYM_LSB(IBCCtrl, PhyerrThreshold); + qib_write_kreg(dd, kr_ibcctrl, ppd->cpspec->ibcctrl); + qib_write_kreg(dd, kr_scratch, 0); + } + goto bail; + + case QIB_IB_CFG_PKEYS: /* update pkeys */ + maskr = (u64) ppd->pkeys[0] | ((u64) ppd->pkeys[1] << 16) | + ((u64) ppd->pkeys[2] << 32) | + ((u64) ppd->pkeys[3] << 48); + qib_write_kreg(dd, kr_partitionkey, maskr); + goto bail; + + case QIB_IB_CFG_LINKDEFAULT: /* IB link default (sleep/poll) */ + /* will only take effect when the link state changes */ + if (val == IB_LINKINITCMD_POLL) + ppd->cpspec->ibcctrl &= + ~SYM_MASK(IBCCtrl, LinkDownDefaultState); + else /* SLEEP */ + ppd->cpspec->ibcctrl |= + SYM_MASK(IBCCtrl, LinkDownDefaultState); + qib_write_kreg(dd, kr_ibcctrl, ppd->cpspec->ibcctrl); + qib_write_kreg(dd, kr_scratch, 0); + goto bail; + + case QIB_IB_CFG_MTU: /* update the MTU in IBC */ + /* + * Update our housekeeping variables, and set IBC max + * size, same as init code; max IBC is max we allow in + * buffer, less the qword pbc, plus 1 for ICRC, in dwords + * Set even if it's unchanged, print debug message only + * on changes. + */ + val = (ppd->ibmaxlen >> 2) + 1; + ppd->cpspec->ibcctrl &= ~SYM_MASK(IBCCtrl, MaxPktLen); + ppd->cpspec->ibcctrl |= (u64)val << SYM_LSB(IBCCtrl, MaxPktLen); + qib_write_kreg(dd, kr_ibcctrl, ppd->cpspec->ibcctrl); + qib_write_kreg(dd, kr_scratch, 0); + goto bail; + + case QIB_IB_CFG_LSTATE: /* set the IB link state */ + switch (val & 0xffff0000) { + case IB_LINKCMD_DOWN: + lcmd = QLOGIC_IB_IBCC_LINKCMD_DOWN; + if (!ppd->cpspec->ibdeltainprog && + qib_compat_ddr_negotiate) { + ppd->cpspec->ibdeltainprog = 1; + ppd->cpspec->ibsymsnap = + read_7220_creg32(dd, cr_ibsymbolerr); + ppd->cpspec->iblnkerrsnap = + read_7220_creg32(dd, cr_iblinkerrrecov); + } + break; + + case IB_LINKCMD_ARMED: + lcmd = QLOGIC_IB_IBCC_LINKCMD_ARMED; + break; + + case IB_LINKCMD_ACTIVE: + lcmd = QLOGIC_IB_IBCC_LINKCMD_ACTIVE; + break; + + default: + ret = -EINVAL; + qib_dev_err(dd, "bad linkcmd req 0x%x\n", val >> 16); + goto bail; + } + switch (val & 0xffff) { + case IB_LINKINITCMD_NOP: + licmd = 0; + break; + + case IB_LINKINITCMD_POLL: + licmd = QLOGIC_IB_IBCC_LINKINITCMD_POLL; + break; + + case IB_LINKINITCMD_SLEEP: + licmd = QLOGIC_IB_IBCC_LINKINITCMD_SLEEP; + break; + + case IB_LINKINITCMD_DISABLE: + licmd = QLOGIC_IB_IBCC_LINKINITCMD_DISABLE; + ppd->cpspec->chase_end = 0; + /* + * stop state chase counter and timer, if running. + * wait forpending timer, but don't clear .data (ppd)! + */ + if (ppd->cpspec->chase_timer.expires) { + del_timer_sync(&ppd->cpspec->chase_timer); + ppd->cpspec->chase_timer.expires = 0; + } + break; + + default: + ret = -EINVAL; + qib_dev_err(dd, "bad linkinitcmd req 0x%x\n", + val & 0xffff); + goto bail; + } + qib_set_ib_7220_lstate(ppd, lcmd, licmd); + + maskr = IBA7220_IBC_WIDTH_MASK; + lsb = IBA7220_IBC_WIDTH_SHIFT; + tmp = (ppd->cpspec->ibcddrctrl >> lsb) & maskr; + /* If the width active on the chip does not match the + * width in the shadow register, write the new active + * width to the chip. + * We don't have to worry about speed as the speed is taken + * care of by set_7220_ibspeed_fast called by ib_updown. + */ + if (ppd->link_width_enabled-1 != tmp) { + ppd->cpspec->ibcddrctrl &= ~(maskr << lsb); + ppd->cpspec->ibcddrctrl |= + (((u64)(ppd->link_width_enabled-1) & maskr) << + lsb); + qib_write_kreg(dd, kr_ibcddrctrl, + ppd->cpspec->ibcddrctrl); + qib_write_kreg(dd, kr_scratch, 0); + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags |= QIBL_IB_FORCE_NOTIFY; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + } + goto bail; + + case QIB_IB_CFG_HRTBT: /* set Heartbeat off/enable/auto */ + if (val > IBA7220_IBC_HRTBT_MASK) { + ret = -EINVAL; + goto bail; + } + lsb = IBA7220_IBC_HRTBT_SHIFT; + maskr = IBA7220_IBC_HRTBT_MASK; + break; + + default: + ret = -EINVAL; + goto bail; + } + ppd->cpspec->ibcddrctrl &= ~(maskr << lsb); + ppd->cpspec->ibcddrctrl |= (((u64) val & maskr) << lsb); + qib_write_kreg(dd, kr_ibcddrctrl, ppd->cpspec->ibcddrctrl); + qib_write_kreg(dd, kr_scratch, 0); + if (setforce) { + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags |= QIBL_IB_FORCE_NOTIFY; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + } +bail: + return ret; +} + +static int qib_7220_set_loopback(struct qib_pportdata *ppd, const char *what) +{ + int ret = 0; + u64 val, ddr; + + if (!strncmp(what, "ibc", 3)) { + ppd->cpspec->ibcctrl |= SYM_MASK(IBCCtrl, Loopback); + val = 0; /* disable heart beat, so link will come up */ + qib_devinfo(ppd->dd->pcidev, "Enabling IB%u:%u IBC loopback\n", + ppd->dd->unit, ppd->port); + } else if (!strncmp(what, "off", 3)) { + ppd->cpspec->ibcctrl &= ~SYM_MASK(IBCCtrl, Loopback); + /* enable heart beat again */ + val = IBA7220_IBC_HRTBT_MASK << IBA7220_IBC_HRTBT_SHIFT; + qib_devinfo(ppd->dd->pcidev, + "Disabling IB%u:%u IBC loopback (normal)\n", + ppd->dd->unit, ppd->port); + } else + ret = -EINVAL; + if (!ret) { + qib_write_kreg(ppd->dd, kr_ibcctrl, ppd->cpspec->ibcctrl); + ddr = ppd->cpspec->ibcddrctrl & ~(IBA7220_IBC_HRTBT_MASK + << IBA7220_IBC_HRTBT_SHIFT); + ppd->cpspec->ibcddrctrl = ddr | val; + qib_write_kreg(ppd->dd, kr_ibcddrctrl, + ppd->cpspec->ibcddrctrl); + qib_write_kreg(ppd->dd, kr_scratch, 0); + } + return ret; +} + +static void qib_update_7220_usrhead(struct qib_ctxtdata *rcd, u64 hd, + u32 updegr, u32 egrhd, u32 npkts) +{ + if (updegr) + qib_write_ureg(rcd->dd, ur_rcvegrindexhead, egrhd, rcd->ctxt); + qib_write_ureg(rcd->dd, ur_rcvhdrhead, hd, rcd->ctxt); +} + +static u32 qib_7220_hdrqempty(struct qib_ctxtdata *rcd) +{ + u32 head, tail; + + head = qib_read_ureg32(rcd->dd, ur_rcvhdrhead, rcd->ctxt); + if (rcd->rcvhdrtail_kvaddr) + tail = qib_get_rcvhdrtail(rcd); + else + tail = qib_read_ureg32(rcd->dd, ur_rcvhdrtail, rcd->ctxt); + return head == tail; +} + +/* + * Modify the RCVCTRL register in chip-specific way. This + * is a function because bit positions and (future) register + * location is chip-specifc, but the needed operations are + * generic. <op> is a bit-mask because we often want to + * do multiple modifications. + */ +static void rcvctrl_7220_mod(struct qib_pportdata *ppd, unsigned int op, + int ctxt) +{ + struct qib_devdata *dd = ppd->dd; + u64 mask, val; + unsigned long flags; + + spin_lock_irqsave(&dd->cspec->rcvmod_lock, flags); + if (op & QIB_RCVCTRL_TAILUPD_ENB) + dd->rcvctrl |= (1ULL << IBA7220_R_TAILUPD_SHIFT); + if (op & QIB_RCVCTRL_TAILUPD_DIS) + dd->rcvctrl &= ~(1ULL << IBA7220_R_TAILUPD_SHIFT); + if (op & QIB_RCVCTRL_PKEY_ENB) + dd->rcvctrl &= ~(1ULL << IBA7220_R_PKEY_DIS_SHIFT); + if (op & QIB_RCVCTRL_PKEY_DIS) + dd->rcvctrl |= (1ULL << IBA7220_R_PKEY_DIS_SHIFT); + if (ctxt < 0) + mask = (1ULL << dd->ctxtcnt) - 1; + else + mask = (1ULL << ctxt); + if (op & QIB_RCVCTRL_CTXT_ENB) { + /* always done for specific ctxt */ + dd->rcvctrl |= (mask << SYM_LSB(RcvCtrl, PortEnable)); + if (!(dd->flags & QIB_NODMA_RTAIL)) + dd->rcvctrl |= 1ULL << IBA7220_R_TAILUPD_SHIFT; + /* Write these registers before the context is enabled. */ + qib_write_kreg_ctxt(dd, kr_rcvhdrtailaddr, ctxt, + dd->rcd[ctxt]->rcvhdrqtailaddr_phys); + qib_write_kreg_ctxt(dd, kr_rcvhdraddr, ctxt, + dd->rcd[ctxt]->rcvhdrq_phys); + dd->rcd[ctxt]->seq_cnt = 1; + } + if (op & QIB_RCVCTRL_CTXT_DIS) + dd->rcvctrl &= ~(mask << SYM_LSB(RcvCtrl, PortEnable)); + if (op & QIB_RCVCTRL_INTRAVAIL_ENB) + dd->rcvctrl |= (mask << IBA7220_R_INTRAVAIL_SHIFT); + if (op & QIB_RCVCTRL_INTRAVAIL_DIS) + dd->rcvctrl &= ~(mask << IBA7220_R_INTRAVAIL_SHIFT); + qib_write_kreg(dd, kr_rcvctrl, dd->rcvctrl); + if ((op & QIB_RCVCTRL_INTRAVAIL_ENB) && dd->rhdrhead_intr_off) { + /* arm rcv interrupt */ + val = qib_read_ureg32(dd, ur_rcvhdrhead, ctxt) | + dd->rhdrhead_intr_off; + qib_write_ureg(dd, ur_rcvhdrhead, val, ctxt); + } + if (op & QIB_RCVCTRL_CTXT_ENB) { + /* + * Init the context registers also; if we were + * disabled, tail and head should both be zero + * already from the enable, but since we don't + * know, we have to do it explicitly. + */ + val = qib_read_ureg32(dd, ur_rcvegrindextail, ctxt); + qib_write_ureg(dd, ur_rcvegrindexhead, val, ctxt); + + val = qib_read_ureg32(dd, ur_rcvhdrtail, ctxt); + dd->rcd[ctxt]->head = val; + /* If kctxt, interrupt on next receive. */ + if (ctxt < dd->first_user_ctxt) + val |= dd->rhdrhead_intr_off; + qib_write_ureg(dd, ur_rcvhdrhead, val, ctxt); + } + if (op & QIB_RCVCTRL_CTXT_DIS) { + if (ctxt >= 0) { + qib_write_kreg_ctxt(dd, kr_rcvhdrtailaddr, ctxt, 0); + qib_write_kreg_ctxt(dd, kr_rcvhdraddr, ctxt, 0); + } else { + unsigned i; + + for (i = 0; i < dd->cfgctxts; i++) { + qib_write_kreg_ctxt(dd, kr_rcvhdrtailaddr, + i, 0); + qib_write_kreg_ctxt(dd, kr_rcvhdraddr, i, 0); + } + } + } + spin_unlock_irqrestore(&dd->cspec->rcvmod_lock, flags); +} + +/* + * Modify the SENDCTRL register in chip-specific way. This + * is a function there may be multiple such registers with + * slightly different layouts. To start, we assume the + * "canonical" register layout of the first chips. + * Chip requires no back-back sendctrl writes, so write + * scratch register after writing sendctrl + */ +static void sendctrl_7220_mod(struct qib_pportdata *ppd, u32 op) +{ + struct qib_devdata *dd = ppd->dd; + u64 tmp_dd_sendctrl; + unsigned long flags; + + spin_lock_irqsave(&dd->sendctrl_lock, flags); + + /* First the ones that are "sticky", saved in shadow */ + if (op & QIB_SENDCTRL_CLEAR) + dd->sendctrl = 0; + if (op & QIB_SENDCTRL_SEND_DIS) + dd->sendctrl &= ~SYM_MASK(SendCtrl, SPioEnable); + else if (op & QIB_SENDCTRL_SEND_ENB) { + dd->sendctrl |= SYM_MASK(SendCtrl, SPioEnable); + if (dd->flags & QIB_USE_SPCL_TRIG) + dd->sendctrl |= SYM_MASK(SendCtrl, + SSpecialTriggerEn); + } + if (op & QIB_SENDCTRL_AVAIL_DIS) + dd->sendctrl &= ~SYM_MASK(SendCtrl, SendBufAvailUpd); + else if (op & QIB_SENDCTRL_AVAIL_ENB) + dd->sendctrl |= SYM_MASK(SendCtrl, SendBufAvailUpd); + + if (op & QIB_SENDCTRL_DISARM_ALL) { + u32 i, last; + + tmp_dd_sendctrl = dd->sendctrl; + /* + * disarm any that are not yet launched, disabling sends + * and updates until done. + */ + last = dd->piobcnt2k + dd->piobcnt4k; + tmp_dd_sendctrl &= + ~(SYM_MASK(SendCtrl, SPioEnable) | + SYM_MASK(SendCtrl, SendBufAvailUpd)); + for (i = 0; i < last; i++) { + qib_write_kreg(dd, kr_sendctrl, + tmp_dd_sendctrl | + SYM_MASK(SendCtrl, Disarm) | i); + qib_write_kreg(dd, kr_scratch, 0); + } + } + + tmp_dd_sendctrl = dd->sendctrl; + + if (op & QIB_SENDCTRL_FLUSH) + tmp_dd_sendctrl |= SYM_MASK(SendCtrl, Abort); + if (op & QIB_SENDCTRL_DISARM) + tmp_dd_sendctrl |= SYM_MASK(SendCtrl, Disarm) | + ((op & QIB_7220_SendCtrl_DisarmPIOBuf_RMASK) << + SYM_LSB(SendCtrl, DisarmPIOBuf)); + if ((op & QIB_SENDCTRL_AVAIL_BLIP) && + (dd->sendctrl & SYM_MASK(SendCtrl, SendBufAvailUpd))) + tmp_dd_sendctrl &= ~SYM_MASK(SendCtrl, SendBufAvailUpd); + + qib_write_kreg(dd, kr_sendctrl, tmp_dd_sendctrl); + qib_write_kreg(dd, kr_scratch, 0); + + if (op & QIB_SENDCTRL_AVAIL_BLIP) { + qib_write_kreg(dd, kr_sendctrl, dd->sendctrl); + qib_write_kreg(dd, kr_scratch, 0); + } + + spin_unlock_irqrestore(&dd->sendctrl_lock, flags); + + if (op & QIB_SENDCTRL_FLUSH) { + u32 v; + /* + * ensure writes have hit chip, then do a few + * more reads, to allow DMA of pioavail registers + * to occur, so in-memory copy is in sync with + * the chip. Not always safe to sleep. + */ + v = qib_read_kreg32(dd, kr_scratch); + qib_write_kreg(dd, kr_scratch, v); + v = qib_read_kreg32(dd, kr_scratch); + qib_write_kreg(dd, kr_scratch, v); + qib_read_kreg32(dd, kr_scratch); + } +} + +/** + * qib_portcntr_7220 - read a per-port counter + * @ppd: the qlogic_ib device + * @reg: the counter to snapshot + */ +static u64 qib_portcntr_7220(struct qib_pportdata *ppd, u32 reg) +{ + u64 ret = 0ULL; + struct qib_devdata *dd = ppd->dd; + u16 creg; + /* 0xffff for unimplemented or synthesized counters */ + static const u16 xlator[] = { + [QIBPORTCNTR_PKTSEND] = cr_pktsend, + [QIBPORTCNTR_WORDSEND] = cr_wordsend, + [QIBPORTCNTR_PSXMITDATA] = cr_psxmitdatacount, + [QIBPORTCNTR_PSXMITPKTS] = cr_psxmitpktscount, + [QIBPORTCNTR_PSXMITWAIT] = cr_psxmitwaitcount, + [QIBPORTCNTR_SENDSTALL] = cr_sendstall, + [QIBPORTCNTR_PKTRCV] = cr_pktrcv, + [QIBPORTCNTR_PSRCVDATA] = cr_psrcvdatacount, + [QIBPORTCNTR_PSRCVPKTS] = cr_psrcvpktscount, + [QIBPORTCNTR_RCVEBP] = cr_rcvebp, + [QIBPORTCNTR_RCVOVFL] = cr_rcvovfl, + [QIBPORTCNTR_WORDRCV] = cr_wordrcv, + [QIBPORTCNTR_RXDROPPKT] = cr_rxdroppkt, + [QIBPORTCNTR_RXLOCALPHYERR] = cr_rxotherlocalphyerr, + [QIBPORTCNTR_RXVLERR] = cr_rxvlerr, + [QIBPORTCNTR_ERRICRC] = cr_erricrc, + [QIBPORTCNTR_ERRVCRC] = cr_errvcrc, + [QIBPORTCNTR_ERRLPCRC] = cr_errlpcrc, + [QIBPORTCNTR_BADFORMAT] = cr_badformat, + [QIBPORTCNTR_ERR_RLEN] = cr_err_rlen, + [QIBPORTCNTR_IBSYMBOLERR] = cr_ibsymbolerr, + [QIBPORTCNTR_INVALIDRLEN] = cr_invalidrlen, + [QIBPORTCNTR_UNSUPVL] = cr_txunsupvl, + [QIBPORTCNTR_EXCESSBUFOVFL] = cr_excessbufferovfl, + [QIBPORTCNTR_ERRLINK] = cr_errlink, + [QIBPORTCNTR_IBLINKDOWN] = cr_iblinkdown, + [QIBPORTCNTR_IBLINKERRRECOV] = cr_iblinkerrrecov, + [QIBPORTCNTR_LLI] = cr_locallinkintegrityerr, + [QIBPORTCNTR_PSINTERVAL] = cr_psinterval, + [QIBPORTCNTR_PSSTART] = cr_psstart, + [QIBPORTCNTR_PSSTAT] = cr_psstat, + [QIBPORTCNTR_VL15PKTDROP] = cr_vl15droppedpkt, + [QIBPORTCNTR_ERRPKEY] = cr_errpkey, + [QIBPORTCNTR_KHDROVFL] = 0xffff, + }; + + if (reg >= ARRAY_SIZE(xlator)) { + qib_devinfo(ppd->dd->pcidev, + "Unimplemented portcounter %u\n", reg); + goto done; + } + creg = xlator[reg]; + + if (reg == QIBPORTCNTR_KHDROVFL) { + int i; + + /* sum over all kernel contexts */ + for (i = 0; i < dd->first_user_ctxt; i++) + ret += read_7220_creg32(dd, cr_portovfl + i); + } + if (creg == 0xffff) + goto done; + + /* + * only fast incrementing counters are 64bit; use 32 bit reads to + * avoid two independent reads when on opteron + */ + if ((creg == cr_wordsend || creg == cr_wordrcv || + creg == cr_pktsend || creg == cr_pktrcv)) + ret = read_7220_creg(dd, creg); + else + ret = read_7220_creg32(dd, creg); + if (creg == cr_ibsymbolerr) { + if (dd->pport->cpspec->ibdeltainprog) + ret -= ret - ppd->cpspec->ibsymsnap; + ret -= dd->pport->cpspec->ibsymdelta; + } else if (creg == cr_iblinkerrrecov) { + if (dd->pport->cpspec->ibdeltainprog) + ret -= ret - ppd->cpspec->iblnkerrsnap; + ret -= dd->pport->cpspec->iblnkerrdelta; + } +done: + return ret; +} + +/* + * Device counter names (not port-specific), one line per stat, + * single string. Used by utilities like ipathstats to print the stats + * in a way which works for different versions of drivers, without changing + * the utility. Names need to be 12 chars or less (w/o newline), for proper + * display by utility. + * Non-error counters are first. + * Start of "error" counters is indicated by a leading "E " on the first + * "error" counter, and doesn't count in label length. + * The EgrOvfl list needs to be last so we truncate them at the configured + * context count for the device. + * cntr7220indices contains the corresponding register indices. + */ +static const char cntr7220names[] = + "Interrupts\n" + "HostBusStall\n" + "E RxTIDFull\n" + "RxTIDInvalid\n" + "Ctxt0EgrOvfl\n" + "Ctxt1EgrOvfl\n" + "Ctxt2EgrOvfl\n" + "Ctxt3EgrOvfl\n" + "Ctxt4EgrOvfl\n" + "Ctxt5EgrOvfl\n" + "Ctxt6EgrOvfl\n" + "Ctxt7EgrOvfl\n" + "Ctxt8EgrOvfl\n" + "Ctxt9EgrOvfl\n" + "Ctx10EgrOvfl\n" + "Ctx11EgrOvfl\n" + "Ctx12EgrOvfl\n" + "Ctx13EgrOvfl\n" + "Ctx14EgrOvfl\n" + "Ctx15EgrOvfl\n" + "Ctx16EgrOvfl\n"; + +static const size_t cntr7220indices[] = { + cr_lbint, + cr_lbflowstall, + cr_errtidfull, + cr_errtidvalid, + cr_portovfl + 0, + cr_portovfl + 1, + cr_portovfl + 2, + cr_portovfl + 3, + cr_portovfl + 4, + cr_portovfl + 5, + cr_portovfl + 6, + cr_portovfl + 7, + cr_portovfl + 8, + cr_portovfl + 9, + cr_portovfl + 10, + cr_portovfl + 11, + cr_portovfl + 12, + cr_portovfl + 13, + cr_portovfl + 14, + cr_portovfl + 15, + cr_portovfl + 16, +}; + +/* + * same as cntr7220names and cntr7220indices, but for port-specific counters. + * portcntr7220indices is somewhat complicated by some registers needing + * adjustments of various kinds, and those are ORed with _PORT_VIRT_FLAG + */ +static const char portcntr7220names[] = + "TxPkt\n" + "TxFlowPkt\n" + "TxWords\n" + "RxPkt\n" + "RxFlowPkt\n" + "RxWords\n" + "TxFlowStall\n" + "TxDmaDesc\n" /* 7220 and 7322-only */ + "E RxDlidFltr\n" /* 7220 and 7322-only */ + "IBStatusChng\n" + "IBLinkDown\n" + "IBLnkRecov\n" + "IBRxLinkErr\n" + "IBSymbolErr\n" + "RxLLIErr\n" + "RxBadFormat\n" + "RxBadLen\n" + "RxBufOvrfl\n" + "RxEBP\n" + "RxFlowCtlErr\n" + "RxICRCerr\n" + "RxLPCRCerr\n" + "RxVCRCerr\n" + "RxInvalLen\n" + "RxInvalPKey\n" + "RxPktDropped\n" + "TxBadLength\n" + "TxDropped\n" + "TxInvalLen\n" + "TxUnderrun\n" + "TxUnsupVL\n" + "RxLclPhyErr\n" /* 7220 and 7322-only */ + "RxVL15Drop\n" /* 7220 and 7322-only */ + "RxVlErr\n" /* 7220 and 7322-only */ + "XcessBufOvfl\n" /* 7220 and 7322-only */ + ; + +#define _PORT_VIRT_FLAG 0x8000 /* "virtual", need adjustments */ +static const size_t portcntr7220indices[] = { + QIBPORTCNTR_PKTSEND | _PORT_VIRT_FLAG, + cr_pktsendflow, + QIBPORTCNTR_WORDSEND | _PORT_VIRT_FLAG, + QIBPORTCNTR_PKTRCV | _PORT_VIRT_FLAG, + cr_pktrcvflowctrl, + QIBPORTCNTR_WORDRCV | _PORT_VIRT_FLAG, + QIBPORTCNTR_SENDSTALL | _PORT_VIRT_FLAG, + cr_txsdmadesc, + cr_rxdlidfltr, + cr_ibstatuschange, + QIBPORTCNTR_IBLINKDOWN | _PORT_VIRT_FLAG, + QIBPORTCNTR_IBLINKERRRECOV | _PORT_VIRT_FLAG, + QIBPORTCNTR_ERRLINK | _PORT_VIRT_FLAG, + QIBPORTCNTR_IBSYMBOLERR | _PORT_VIRT_FLAG, + QIBPORTCNTR_LLI | _PORT_VIRT_FLAG, + QIBPORTCNTR_BADFORMAT | _PORT_VIRT_FLAG, + QIBPORTCNTR_ERR_RLEN | _PORT_VIRT_FLAG, + QIBPORTCNTR_RCVOVFL | _PORT_VIRT_FLAG, + QIBPORTCNTR_RCVEBP | _PORT_VIRT_FLAG, + cr_rcvflowctrl_err, + QIBPORTCNTR_ERRICRC | _PORT_VIRT_FLAG, + QIBPORTCNTR_ERRLPCRC | _PORT_VIRT_FLAG, + QIBPORTCNTR_ERRVCRC | _PORT_VIRT_FLAG, + QIBPORTCNTR_INVALIDRLEN | _PORT_VIRT_FLAG, + QIBPORTCNTR_ERRPKEY | _PORT_VIRT_FLAG, + QIBPORTCNTR_RXDROPPKT | _PORT_VIRT_FLAG, + cr_invalidslen, + cr_senddropped, + cr_errslen, + cr_sendunderrun, + cr_txunsupvl, + QIBPORTCNTR_RXLOCALPHYERR | _PORT_VIRT_FLAG, + QIBPORTCNTR_VL15PKTDROP | _PORT_VIRT_FLAG, + QIBPORTCNTR_RXVLERR | _PORT_VIRT_FLAG, + QIBPORTCNTR_EXCESSBUFOVFL | _PORT_VIRT_FLAG, +}; + +/* do all the setup to make the counter reads efficient later */ +static void init_7220_cntrnames(struct qib_devdata *dd) +{ + int i, j = 0; + char *s; + + for (i = 0, s = (char *)cntr7220names; s && j <= dd->cfgctxts; + i++) { + /* we always have at least one counter before the egrovfl */ + if (!j && !strncmp("Ctxt0EgrOvfl", s + 1, 12)) + j = 1; + s = strchr(s + 1, '\n'); + if (s && j) + j++; + } + dd->cspec->ncntrs = i; + if (!s) + /* full list; size is without terminating null */ + dd->cspec->cntrnamelen = sizeof(cntr7220names) - 1; + else + dd->cspec->cntrnamelen = 1 + s - cntr7220names; + dd->cspec->cntrs = kmalloc_array(dd->cspec->ncntrs, sizeof(u64), + GFP_KERNEL); + + for (i = 0, s = (char *)portcntr7220names; s; i++) + s = strchr(s + 1, '\n'); + dd->cspec->nportcntrs = i - 1; + dd->cspec->portcntrnamelen = sizeof(portcntr7220names) - 1; + dd->cspec->portcntrs = kmalloc_array(dd->cspec->nportcntrs, + sizeof(u64), + GFP_KERNEL); +} + +static u32 qib_read_7220cntrs(struct qib_devdata *dd, loff_t pos, char **namep, + u64 **cntrp) +{ + u32 ret; + + if (!dd->cspec->cntrs) { + ret = 0; + goto done; + } + + if (namep) { + *namep = (char *)cntr7220names; + ret = dd->cspec->cntrnamelen; + if (pos >= ret) + ret = 0; /* final read after getting everything */ + } else { + u64 *cntr = dd->cspec->cntrs; + int i; + + ret = dd->cspec->ncntrs * sizeof(u64); + if (!cntr || pos >= ret) { + /* everything read, or couldn't get memory */ + ret = 0; + goto done; + } + + *cntrp = cntr; + for (i = 0; i < dd->cspec->ncntrs; i++) + *cntr++ = read_7220_creg32(dd, cntr7220indices[i]); + } +done: + return ret; +} + +static u32 qib_read_7220portcntrs(struct qib_devdata *dd, loff_t pos, u32 port, + char **namep, u64 **cntrp) +{ + u32 ret; + + if (!dd->cspec->portcntrs) { + ret = 0; + goto done; + } + if (namep) { + *namep = (char *)portcntr7220names; + ret = dd->cspec->portcntrnamelen; + if (pos >= ret) + ret = 0; /* final read after getting everything */ + } else { + u64 *cntr = dd->cspec->portcntrs; + struct qib_pportdata *ppd = &dd->pport[port]; + int i; + + ret = dd->cspec->nportcntrs * sizeof(u64); + if (!cntr || pos >= ret) { + /* everything read, or couldn't get memory */ + ret = 0; + goto done; + } + *cntrp = cntr; + for (i = 0; i < dd->cspec->nportcntrs; i++) { + if (portcntr7220indices[i] & _PORT_VIRT_FLAG) + *cntr++ = qib_portcntr_7220(ppd, + portcntr7220indices[i] & + ~_PORT_VIRT_FLAG); + else + *cntr++ = read_7220_creg32(dd, + portcntr7220indices[i]); + } + } +done: + return ret; +} + +/** + * qib_get_7220_faststats - get word counters from chip before they overflow + * @t: contains a pointer to the qlogic_ib device qib_devdata + * + * This needs more work; in particular, decision on whether we really + * need traffic_wds done the way it is + * called from add_timer + */ +static void qib_get_7220_faststats(struct timer_list *t) +{ + struct qib_devdata *dd = from_timer(dd, t, stats_timer); + struct qib_pportdata *ppd = dd->pport; + unsigned long flags; + u64 traffic_wds; + + /* + * don't access the chip while running diags, or memory diags can + * fail + */ + if (!(dd->flags & QIB_INITTED) || dd->diag_client) + /* but re-arm the timer, for diags case; won't hurt other */ + goto done; + + /* + * We now try to maintain an activity timer, based on traffic + * exceeding a threshold, so we need to check the word-counts + * even if they are 64-bit. + */ + traffic_wds = qib_portcntr_7220(ppd, cr_wordsend) + + qib_portcntr_7220(ppd, cr_wordrcv); + spin_lock_irqsave(&dd->eep_st_lock, flags); + traffic_wds -= dd->traffic_wds; + dd->traffic_wds += traffic_wds; + spin_unlock_irqrestore(&dd->eep_st_lock, flags); +done: + mod_timer(&dd->stats_timer, jiffies + HZ * ACTIVITY_TIMER); +} + +/* + * If we are using MSI, try to fallback to INTx. + */ +static int qib_7220_intr_fallback(struct qib_devdata *dd) +{ + if (!dd->msi_lo) + return 0; + + qib_devinfo(dd->pcidev, + "MSI interrupt not detected, trying INTx interrupts\n"); + + qib_free_irq(dd); + dd->msi_lo = 0; + if (pci_alloc_irq_vectors(dd->pcidev, 1, 1, PCI_IRQ_LEGACY) < 0) + qib_dev_err(dd, "Failed to enable INTx\n"); + qib_setup_7220_interrupt(dd); + return 1; +} + +/* + * Reset the XGXS (between serdes and IBC). Slightly less intrusive + * than resetting the IBC or external link state, and useful in some + * cases to cause some retraining. To do this right, we reset IBC + * as well. + */ +static void qib_7220_xgxs_reset(struct qib_pportdata *ppd) +{ + u64 val, prev_val; + struct qib_devdata *dd = ppd->dd; + + prev_val = qib_read_kreg64(dd, kr_xgxs_cfg); + val = prev_val | QLOGIC_IB_XGXS_RESET; + prev_val &= ~QLOGIC_IB_XGXS_RESET; /* be sure */ + qib_write_kreg(dd, kr_control, + dd->control & ~QLOGIC_IB_C_LINKENABLE); + qib_write_kreg(dd, kr_xgxs_cfg, val); + qib_read_kreg32(dd, kr_scratch); + qib_write_kreg(dd, kr_xgxs_cfg, prev_val); + qib_write_kreg(dd, kr_control, dd->control); +} + +/* + * For this chip, we want to use the same buffer every time + * when we are trying to bring the link up (they are always VL15 + * packets). At that link state the packet should always go out immediately + * (or at least be discarded at the tx interface if the link is down). + * If it doesn't, and the buffer isn't available, that means some other + * sender has gotten ahead of us, and is preventing our packet from going + * out. In that case, we flush all packets, and try again. If that still + * fails, we fail the request, and hope things work the next time around. + * + * We don't need very complicated heuristics on whether the packet had + * time to go out or not, since even at SDR 1X, it goes out in very short + * time periods, covered by the chip reads done here and as part of the + * flush. + */ +static u32 __iomem *get_7220_link_buf(struct qib_pportdata *ppd, u32 *bnum) +{ + u32 __iomem *buf; + u32 lbuf = ppd->dd->cspec->lastbuf_for_pio; + int do_cleanup; + unsigned long flags; + + /* + * always blip to get avail list updated, since it's almost + * always needed, and is fairly cheap. + */ + sendctrl_7220_mod(ppd->dd->pport, QIB_SENDCTRL_AVAIL_BLIP); + qib_read_kreg64(ppd->dd, kr_scratch); /* extra chip flush */ + buf = qib_getsendbuf_range(ppd->dd, bnum, lbuf, lbuf); + if (buf) + goto done; + + spin_lock_irqsave(&ppd->sdma_lock, flags); + if (ppd->sdma_state.current_state == qib_sdma_state_s20_idle && + ppd->sdma_state.current_state != qib_sdma_state_s00_hw_down) { + __qib_sdma_process_event(ppd, qib_sdma_event_e00_go_hw_down); + do_cleanup = 0; + } else { + do_cleanup = 1; + qib_7220_sdma_hw_clean_up(ppd); + } + spin_unlock_irqrestore(&ppd->sdma_lock, flags); + + if (do_cleanup) { + qib_read_kreg64(ppd->dd, kr_scratch); /* extra chip flush */ + buf = qib_getsendbuf_range(ppd->dd, bnum, lbuf, lbuf); + } +done: + return buf; +} + +/* + * This code for non-IBTA-compliant IB speed negotiation is only known to + * work for the SDR to DDR transition, and only between an HCA and a switch + * with recent firmware. It is based on observed heuristics, rather than + * actual knowledge of the non-compliant speed negotiation. + * It has a number of hard-coded fields, since the hope is to rewrite this + * when a spec is available on how the negoation is intended to work. + */ +static void autoneg_7220_sendpkt(struct qib_pportdata *ppd, u32 *hdr, + u32 dcnt, u32 *data) +{ + int i; + u64 pbc; + u32 __iomem *piobuf; + u32 pnum; + struct qib_devdata *dd = ppd->dd; + + i = 0; + pbc = 7 + dcnt + 1; /* 7 dword header, dword data, icrc */ + pbc |= PBC_7220_VL15_SEND; + while (!(piobuf = get_7220_link_buf(ppd, &pnum))) { + if (i++ > 5) + return; + udelay(2); + } + sendctrl_7220_mod(dd->pport, QIB_SENDCTRL_DISARM_BUF(pnum)); + writeq(pbc, piobuf); + qib_flush_wc(); + qib_pio_copy(piobuf + 2, hdr, 7); + qib_pio_copy(piobuf + 9, data, dcnt); + if (dd->flags & QIB_USE_SPCL_TRIG) { + u32 spcl_off = (pnum >= dd->piobcnt2k) ? 2047 : 1023; + + qib_flush_wc(); + __raw_writel(0xaebecede, piobuf + spcl_off); + } + qib_flush_wc(); + qib_sendbuf_done(dd, pnum); +} + +/* + * _start packet gets sent twice at start, _done gets sent twice at end + */ +static void autoneg_7220_send(struct qib_pportdata *ppd, int which) +{ + struct qib_devdata *dd = ppd->dd; + static u32 swapped; + u32 dw, i, hcnt, dcnt, *data; + static u32 hdr[7] = { 0xf002ffff, 0x48ffff, 0x6400abba }; + static u32 madpayload_start[0x40] = { + 0x1810103, 0x1, 0x0, 0x0, 0x2c90000, 0x2c9, 0x0, 0x0, + 0xffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x1, 0x1388, 0x15e, 0x1, /* rest 0's */ + }; + static u32 madpayload_done[0x40] = { + 0x1810103, 0x1, 0x0, 0x0, 0x2c90000, 0x2c9, 0x0, 0x0, + 0xffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x40000001, 0x1388, 0x15e, /* rest 0's */ + }; + + dcnt = ARRAY_SIZE(madpayload_start); + hcnt = ARRAY_SIZE(hdr); + if (!swapped) { + /* for maintainability, do it at runtime */ + for (i = 0; i < hcnt; i++) { + dw = (__force u32) cpu_to_be32(hdr[i]); + hdr[i] = dw; + } + for (i = 0; i < dcnt; i++) { + dw = (__force u32) cpu_to_be32(madpayload_start[i]); + madpayload_start[i] = dw; + dw = (__force u32) cpu_to_be32(madpayload_done[i]); + madpayload_done[i] = dw; + } + swapped = 1; + } + + data = which ? madpayload_done : madpayload_start; + + autoneg_7220_sendpkt(ppd, hdr, dcnt, data); + qib_read_kreg64(dd, kr_scratch); + udelay(2); + autoneg_7220_sendpkt(ppd, hdr, dcnt, data); + qib_read_kreg64(dd, kr_scratch); + udelay(2); +} + +/* + * Do the absolute minimum to cause an IB speed change, and make it + * ready, but don't actually trigger the change. The caller will + * do that when ready (if link is in Polling training state, it will + * happen immediately, otherwise when link next goes down) + * + * This routine should only be used as part of the DDR autonegotation + * code for devices that are not compliant with IB 1.2 (or code that + * fixes things up for same). + * + * When link has gone down, and autoneg enabled, or autoneg has + * failed and we give up until next time we set both speeds, and + * then we want IBTA enabled as well as "use max enabled speed. + */ +static void set_7220_ibspeed_fast(struct qib_pportdata *ppd, u32 speed) +{ + ppd->cpspec->ibcddrctrl &= ~(IBA7220_IBC_SPEED_AUTONEG_MASK | + IBA7220_IBC_IBTA_1_2_MASK); + + if (speed == (QIB_IB_SDR | QIB_IB_DDR)) + ppd->cpspec->ibcddrctrl |= IBA7220_IBC_SPEED_AUTONEG_MASK | + IBA7220_IBC_IBTA_1_2_MASK; + else + ppd->cpspec->ibcddrctrl |= speed == QIB_IB_DDR ? + IBA7220_IBC_SPEED_DDR : IBA7220_IBC_SPEED_SDR; + + qib_write_kreg(ppd->dd, kr_ibcddrctrl, ppd->cpspec->ibcddrctrl); + qib_write_kreg(ppd->dd, kr_scratch, 0); +} + +/* + * This routine is only used when we are not talking to another + * IB 1.2-compliant device that we think can do DDR. + * (This includes all existing switch chips as of Oct 2007.) + * 1.2-compliant devices go directly to DDR prior to reaching INIT + */ +static void try_7220_autoneg(struct qib_pportdata *ppd) +{ + unsigned long flags; + + /* + * Required for older non-IB1.2 DDR switches. Newer + * non-IB-compliant switches don't need it, but so far, + * aren't bothered by it either. "Magic constant" + */ + qib_write_kreg(ppd->dd, kr_ncmodectrl, 0x3b9dc07); + + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags |= QIBL_IB_AUTONEG_INPROG; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + autoneg_7220_send(ppd, 0); + set_7220_ibspeed_fast(ppd, QIB_IB_DDR); + + toggle_7220_rclkrls(ppd->dd); + /* 2 msec is minimum length of a poll cycle */ + queue_delayed_work(ib_wq, &ppd->cpspec->autoneg_work, + msecs_to_jiffies(2)); +} + +/* + * Handle the empirically determined mechanism for auto-negotiation + * of DDR speed with switches. + */ +static void autoneg_7220_work(struct work_struct *work) +{ + struct qib_pportdata *ppd; + struct qib_devdata *dd; + u32 i; + unsigned long flags; + + ppd = &container_of(work, struct qib_chippport_specific, + autoneg_work.work)->pportdata; + dd = ppd->dd; + + /* + * Busy wait for this first part, it should be at most a + * few hundred usec, since we scheduled ourselves for 2msec. + */ + for (i = 0; i < 25; i++) { + if (SYM_FIELD(ppd->lastibcstat, IBCStatus, LinkTrainingState) + == IB_7220_LT_STATE_POLLQUIET) { + qib_set_linkstate(ppd, QIB_IB_LINKDOWN_DISABLE); + break; + } + udelay(100); + } + + if (!(ppd->lflags & QIBL_IB_AUTONEG_INPROG)) + goto done; /* we got there early or told to stop */ + + /* we expect this to timeout */ + if (wait_event_timeout(ppd->cpspec->autoneg_wait, + !(ppd->lflags & QIBL_IB_AUTONEG_INPROG), + msecs_to_jiffies(90))) + goto done; + + toggle_7220_rclkrls(dd); + + /* we expect this to timeout */ + if (wait_event_timeout(ppd->cpspec->autoneg_wait, + !(ppd->lflags & QIBL_IB_AUTONEG_INPROG), + msecs_to_jiffies(1700))) + goto done; + + set_7220_ibspeed_fast(ppd, QIB_IB_SDR); + toggle_7220_rclkrls(dd); + + /* + * Wait up to 250 msec for link to train and get to INIT at DDR; + * this should terminate early. + */ + wait_event_timeout(ppd->cpspec->autoneg_wait, + !(ppd->lflags & QIBL_IB_AUTONEG_INPROG), + msecs_to_jiffies(250)); +done: + if (ppd->lflags & QIBL_IB_AUTONEG_INPROG) { + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~QIBL_IB_AUTONEG_INPROG; + if (dd->cspec->autoneg_tries == AUTONEG_TRIES) { + ppd->lflags |= QIBL_IB_AUTONEG_FAILED; + dd->cspec->autoneg_tries = 0; + } + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + set_7220_ibspeed_fast(ppd, ppd->link_speed_enabled); + } +} + +static u32 qib_7220_iblink_state(u64 ibcs) +{ + u32 state = (u32)SYM_FIELD(ibcs, IBCStatus, LinkState); + + switch (state) { + case IB_7220_L_STATE_INIT: + state = IB_PORT_INIT; + break; + case IB_7220_L_STATE_ARM: + state = IB_PORT_ARMED; + break; + case IB_7220_L_STATE_ACTIVE: + case IB_7220_L_STATE_ACT_DEFER: + state = IB_PORT_ACTIVE; + break; + default: + fallthrough; + case IB_7220_L_STATE_DOWN: + state = IB_PORT_DOWN; + break; + } + return state; +} + +/* returns the IBTA port state, rather than the IBC link training state */ +static u8 qib_7220_phys_portstate(u64 ibcs) +{ + u8 state = (u8)SYM_FIELD(ibcs, IBCStatus, LinkTrainingState); + return qib_7220_physportstate[state]; +} + +static int qib_7220_ib_updown(struct qib_pportdata *ppd, int ibup, u64 ibcs) +{ + int ret = 0, symadj = 0; + struct qib_devdata *dd = ppd->dd; + unsigned long flags; + + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~QIBL_IB_FORCE_NOTIFY; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + + if (!ibup) { + /* + * When the link goes down we don't want AEQ running, so it + * won't interfere with IBC training, etc., and we need + * to go back to the static SerDes preset values. + */ + if (!(ppd->lflags & (QIBL_IB_AUTONEG_FAILED | + QIBL_IB_AUTONEG_INPROG))) + set_7220_ibspeed_fast(ppd, ppd->link_speed_enabled); + if (!(ppd->lflags & QIBL_IB_AUTONEG_INPROG)) { + qib_sd7220_presets(dd); + qib_cancel_sends(ppd); /* initial disarm, etc. */ + spin_lock_irqsave(&ppd->sdma_lock, flags); + if (__qib_sdma_running(ppd)) + __qib_sdma_process_event(ppd, + qib_sdma_event_e70_go_idle); + spin_unlock_irqrestore(&ppd->sdma_lock, flags); + } + /* this might better in qib_sd7220_presets() */ + set_7220_relock_poll(dd, ibup); + } else { + if (qib_compat_ddr_negotiate && + !(ppd->lflags & (QIBL_IB_AUTONEG_FAILED | + QIBL_IB_AUTONEG_INPROG)) && + ppd->link_speed_active == QIB_IB_SDR && + (ppd->link_speed_enabled & (QIB_IB_DDR | QIB_IB_SDR)) == + (QIB_IB_DDR | QIB_IB_SDR) && + dd->cspec->autoneg_tries < AUTONEG_TRIES) { + /* we are SDR, and DDR auto-negotiation enabled */ + ++dd->cspec->autoneg_tries; + if (!ppd->cpspec->ibdeltainprog) { + ppd->cpspec->ibdeltainprog = 1; + ppd->cpspec->ibsymsnap = read_7220_creg32(dd, + cr_ibsymbolerr); + ppd->cpspec->iblnkerrsnap = read_7220_creg32(dd, + cr_iblinkerrrecov); + } + try_7220_autoneg(ppd); + ret = 1; /* no other IB status change processing */ + } else if ((ppd->lflags & QIBL_IB_AUTONEG_INPROG) && + ppd->link_speed_active == QIB_IB_SDR) { + autoneg_7220_send(ppd, 1); + set_7220_ibspeed_fast(ppd, QIB_IB_DDR); + udelay(2); + toggle_7220_rclkrls(dd); + ret = 1; /* no other IB status change processing */ + } else { + if ((ppd->lflags & QIBL_IB_AUTONEG_INPROG) && + (ppd->link_speed_active & QIB_IB_DDR)) { + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~(QIBL_IB_AUTONEG_INPROG | + QIBL_IB_AUTONEG_FAILED); + spin_unlock_irqrestore(&ppd->lflags_lock, + flags); + dd->cspec->autoneg_tries = 0; + /* re-enable SDR, for next link down */ + set_7220_ibspeed_fast(ppd, + ppd->link_speed_enabled); + wake_up(&ppd->cpspec->autoneg_wait); + symadj = 1; + } else if (ppd->lflags & QIBL_IB_AUTONEG_FAILED) { + /* + * Clear autoneg failure flag, and do setup + * so we'll try next time link goes down and + * back to INIT (possibly connected to a + * different device). + */ + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~QIBL_IB_AUTONEG_FAILED; + spin_unlock_irqrestore(&ppd->lflags_lock, + flags); + ppd->cpspec->ibcddrctrl |= + IBA7220_IBC_IBTA_1_2_MASK; + qib_write_kreg(dd, kr_ncmodectrl, 0); + symadj = 1; + } + } + + if (!(ppd->lflags & QIBL_IB_AUTONEG_INPROG)) + symadj = 1; + + if (!ret) { + ppd->delay_mult = rate_to_delay + [(ibcs >> IBA7220_LINKSPEED_SHIFT) & 1] + [(ibcs >> IBA7220_LINKWIDTH_SHIFT) & 1]; + + set_7220_relock_poll(dd, ibup); + spin_lock_irqsave(&ppd->sdma_lock, flags); + /* + * Unlike 7322, the 7220 needs this, due to lack of + * interrupt in some cases when we have sdma active + * when the link goes down. + */ + if (ppd->sdma_state.current_state != + qib_sdma_state_s20_idle) + __qib_sdma_process_event(ppd, + qib_sdma_event_e00_go_hw_down); + spin_unlock_irqrestore(&ppd->sdma_lock, flags); + } + } + + if (symadj) { + if (ppd->cpspec->ibdeltainprog) { + ppd->cpspec->ibdeltainprog = 0; + ppd->cpspec->ibsymdelta += read_7220_creg32(ppd->dd, + cr_ibsymbolerr) - ppd->cpspec->ibsymsnap; + ppd->cpspec->iblnkerrdelta += read_7220_creg32(ppd->dd, + cr_iblinkerrrecov) - ppd->cpspec->iblnkerrsnap; + } + } else if (!ibup && qib_compat_ddr_negotiate && + !ppd->cpspec->ibdeltainprog && + !(ppd->lflags & QIBL_IB_AUTONEG_INPROG)) { + ppd->cpspec->ibdeltainprog = 1; + ppd->cpspec->ibsymsnap = read_7220_creg32(ppd->dd, + cr_ibsymbolerr); + ppd->cpspec->iblnkerrsnap = read_7220_creg32(ppd->dd, + cr_iblinkerrrecov); + } + + if (!ret) + qib_setup_7220_setextled(ppd, ibup); + return ret; +} + +/* + * Does read/modify/write to appropriate registers to + * set output and direction bits selected by mask. + * these are in their canonical positions (e.g. lsb of + * dir will end up in D48 of extctrl on existing chips). + * returns contents of GP Inputs. + */ +static int gpio_7220_mod(struct qib_devdata *dd, u32 out, u32 dir, u32 mask) +{ + u64 read_val, new_out; + unsigned long flags; + + if (mask) { + /* some bits being written, lock access to GPIO */ + dir &= mask; + out &= mask; + spin_lock_irqsave(&dd->cspec->gpio_lock, flags); + dd->cspec->extctrl &= ~((u64)mask << SYM_LSB(EXTCtrl, GPIOOe)); + dd->cspec->extctrl |= ((u64) dir << SYM_LSB(EXTCtrl, GPIOOe)); + new_out = (dd->cspec->gpio_out & ~mask) | out; + + qib_write_kreg(dd, kr_extctrl, dd->cspec->extctrl); + qib_write_kreg(dd, kr_gpio_out, new_out); + dd->cspec->gpio_out = new_out; + spin_unlock_irqrestore(&dd->cspec->gpio_lock, flags); + } + /* + * It is unlikely that a read at this time would get valid + * data on a pin whose direction line was set in the same + * call to this function. We include the read here because + * that allows us to potentially combine a change on one pin with + * a read on another, and because the old code did something like + * this. + */ + read_val = qib_read_kreg64(dd, kr_extstatus); + return SYM_FIELD(read_val, EXTStatus, GPIOIn); +} + +/* + * Read fundamental info we need to use the chip. These are + * the registers that describe chip capabilities, and are + * saved in shadow registers. + */ +static void get_7220_chip_params(struct qib_devdata *dd) +{ + u64 val; + u32 piobufs; + int mtu; + + dd->uregbase = qib_read_kreg32(dd, kr_userregbase); + + dd->rcvtidcnt = qib_read_kreg32(dd, kr_rcvtidcnt); + dd->rcvtidbase = qib_read_kreg32(dd, kr_rcvtidbase); + dd->rcvegrbase = qib_read_kreg32(dd, kr_rcvegrbase); + dd->palign = qib_read_kreg32(dd, kr_palign); + dd->piobufbase = qib_read_kreg64(dd, kr_sendpiobufbase); + dd->pio2k_bufbase = dd->piobufbase & 0xffffffff; + + val = qib_read_kreg64(dd, kr_sendpiosize); + dd->piosize2k = val & ~0U; + dd->piosize4k = val >> 32; + + mtu = ib_mtu_enum_to_int(qib_ibmtu); + if (mtu == -1) + mtu = QIB_DEFAULT_MTU; + dd->pport->ibmtu = (u32)mtu; + + val = qib_read_kreg64(dd, kr_sendpiobufcnt); + dd->piobcnt2k = val & ~0U; + dd->piobcnt4k = val >> 32; + /* these may be adjusted in init_chip_wc_pat() */ + dd->pio2kbase = (u32 __iomem *) + ((char __iomem *) dd->kregbase + dd->pio2k_bufbase); + if (dd->piobcnt4k) { + dd->pio4kbase = (u32 __iomem *) + ((char __iomem *) dd->kregbase + + (dd->piobufbase >> 32)); + /* + * 4K buffers take 2 pages; we use roundup just to be + * paranoid; we calculate it once here, rather than on + * ever buf allocate + */ + dd->align4k = ALIGN(dd->piosize4k, dd->palign); + } + + piobufs = dd->piobcnt4k + dd->piobcnt2k; + + dd->pioavregs = ALIGN(piobufs, sizeof(u64) * BITS_PER_BYTE / 2) / + (sizeof(u64) * BITS_PER_BYTE / 2); +} + +/* + * The chip base addresses in cspec and cpspec have to be set + * after possible init_chip_wc_pat(), rather than in + * qib_get_7220_chip_params(), so split out as separate function + */ +static void set_7220_baseaddrs(struct qib_devdata *dd) +{ + u32 cregbase; + /* init after possible re-map in init_chip_wc_pat() */ + cregbase = qib_read_kreg32(dd, kr_counterregbase); + dd->cspec->cregbase = (u64 __iomem *) + ((char __iomem *) dd->kregbase + cregbase); + + dd->egrtidbase = (u64 __iomem *) + ((char __iomem *) dd->kregbase + dd->rcvegrbase); +} + + +#define SENDCTRL_SHADOWED (SYM_MASK(SendCtrl, SendIntBufAvail) | \ + SYM_MASK(SendCtrl, SPioEnable) | \ + SYM_MASK(SendCtrl, SSpecialTriggerEn) | \ + SYM_MASK(SendCtrl, SendBufAvailUpd) | \ + SYM_MASK(SendCtrl, AvailUpdThld) | \ + SYM_MASK(SendCtrl, SDmaEnable) | \ + SYM_MASK(SendCtrl, SDmaIntEnable) | \ + SYM_MASK(SendCtrl, SDmaHalt) | \ + SYM_MASK(SendCtrl, SDmaSingleDescriptor)) + +static int sendctrl_hook(struct qib_devdata *dd, + const struct diag_observer *op, + u32 offs, u64 *data, u64 mask, int only_32) +{ + unsigned long flags; + unsigned idx = offs / sizeof(u64); + u64 local_data, all_bits; + + if (idx != kr_sendctrl) { + qib_dev_err(dd, "SendCtrl Hook called with offs %X, %s-bit\n", + offs, only_32 ? "32" : "64"); + return 0; + } + + all_bits = ~0ULL; + if (only_32) + all_bits >>= 32; + spin_lock_irqsave(&dd->sendctrl_lock, flags); + if ((mask & all_bits) != all_bits) { + /* + * At least some mask bits are zero, so we need + * to read. The judgement call is whether from + * reg or shadow. First-cut: read reg, and complain + * if any bits which should be shadowed are different + * from their shadowed value. + */ + if (only_32) + local_data = (u64)qib_read_kreg32(dd, idx); + else + local_data = qib_read_kreg64(dd, idx); + qib_dev_err(dd, "Sendctrl -> %X, Shad -> %X\n", + (u32)local_data, (u32)dd->sendctrl); + if ((local_data & SENDCTRL_SHADOWED) != + (dd->sendctrl & SENDCTRL_SHADOWED)) + qib_dev_err(dd, "Sendctrl read: %X shadow is %X\n", + (u32)local_data, (u32) dd->sendctrl); + *data = (local_data & ~mask) | (*data & mask); + } + if (mask) { + /* + * At least some mask bits are one, so we need + * to write, but only shadow some bits. + */ + u64 sval, tval; /* Shadowed, transient */ + + /* + * New shadow val is bits we don't want to touch, + * ORed with bits we do, that are intended for shadow. + */ + sval = (dd->sendctrl & ~mask); + sval |= *data & SENDCTRL_SHADOWED & mask; + dd->sendctrl = sval; + tval = sval | (*data & ~SENDCTRL_SHADOWED & mask); + qib_dev_err(dd, "Sendctrl <- %X, Shad <- %X\n", + (u32)tval, (u32)sval); + qib_write_kreg(dd, kr_sendctrl, tval); + qib_write_kreg(dd, kr_scratch, 0Ull); + } + spin_unlock_irqrestore(&dd->sendctrl_lock, flags); + + return only_32 ? 4 : 8; +} + +static const struct diag_observer sendctrl_observer = { + sendctrl_hook, kr_sendctrl * sizeof(u64), + kr_sendctrl * sizeof(u64) +}; + +/* + * write the final few registers that depend on some of the + * init setup. Done late in init, just before bringing up + * the serdes. + */ +static int qib_late_7220_initreg(struct qib_devdata *dd) +{ + int ret = 0; + u64 val; + + qib_write_kreg(dd, kr_rcvhdrentsize, dd->rcvhdrentsize); + qib_write_kreg(dd, kr_rcvhdrsize, dd->rcvhdrsize); + qib_write_kreg(dd, kr_rcvhdrcnt, dd->rcvhdrcnt); + qib_write_kreg(dd, kr_sendpioavailaddr, dd->pioavailregs_phys); + val = qib_read_kreg64(dd, kr_sendpioavailaddr); + if (val != dd->pioavailregs_phys) { + qib_dev_err(dd, + "Catastrophic software error, SendPIOAvailAddr written as %lx, read back as %llx\n", + (unsigned long) dd->pioavailregs_phys, + (unsigned long long) val); + ret = -EINVAL; + } + qib_register_observer(dd, &sendctrl_observer); + return ret; +} + +static int qib_init_7220_variables(struct qib_devdata *dd) +{ + struct qib_chippport_specific *cpspec; + struct qib_pportdata *ppd; + int ret = 0; + u32 sbufs, updthresh; + + cpspec = (struct qib_chippport_specific *)(dd + 1); + ppd = &cpspec->pportdata; + dd->pport = ppd; + dd->num_pports = 1; + + dd->cspec = (struct qib_chip_specific *)(cpspec + dd->num_pports); + dd->cspec->dd = dd; + ppd->cpspec = cpspec; + + spin_lock_init(&dd->cspec->sdepb_lock); + spin_lock_init(&dd->cspec->rcvmod_lock); + spin_lock_init(&dd->cspec->gpio_lock); + + /* we haven't yet set QIB_PRESENT, so use read directly */ + dd->revision = readq(&dd->kregbase[kr_revision]); + + if ((dd->revision & 0xffffffffU) == 0xffffffffU) { + qib_dev_err(dd, + "Revision register read failure, giving up initialization\n"); + ret = -ENODEV; + goto bail; + } + dd->flags |= QIB_PRESENT; /* now register routines work */ + + dd->majrev = (u8) SYM_FIELD(dd->revision, Revision_R, + ChipRevMajor); + dd->minrev = (u8) SYM_FIELD(dd->revision, Revision_R, + ChipRevMinor); + + get_7220_chip_params(dd); + qib_7220_boardname(dd); + + /* + * GPIO bits for TWSI data and clock, + * used for serial EEPROM. + */ + dd->gpio_sda_num = _QIB_GPIO_SDA_NUM; + dd->gpio_scl_num = _QIB_GPIO_SCL_NUM; + dd->twsi_eeprom_dev = QIB_TWSI_EEPROM_DEV; + + dd->flags |= QIB_HAS_INTX | QIB_HAS_LINK_LATENCY | + QIB_NODMA_RTAIL | QIB_HAS_THRESH_UPDATE; + dd->flags |= qib_special_trigger ? + QIB_USE_SPCL_TRIG : QIB_HAS_SEND_DMA; + + init_waitqueue_head(&cpspec->autoneg_wait); + INIT_DELAYED_WORK(&cpspec->autoneg_work, autoneg_7220_work); + + ret = qib_init_pportdata(ppd, dd, 0, 1); + if (ret) + goto bail; + ppd->link_width_supported = IB_WIDTH_1X | IB_WIDTH_4X; + ppd->link_speed_supported = QIB_IB_SDR | QIB_IB_DDR; + + ppd->link_width_enabled = ppd->link_width_supported; + ppd->link_speed_enabled = ppd->link_speed_supported; + /* + * Set the initial values to reasonable default, will be set + * for real when link is up. + */ + ppd->link_width_active = IB_WIDTH_4X; + ppd->link_speed_active = QIB_IB_SDR; + ppd->delay_mult = rate_to_delay[0][1]; + ppd->vls_supported = IB_VL_VL0; + ppd->vls_operational = ppd->vls_supported; + + if (!qib_mini_init) + qib_write_kreg(dd, kr_rcvbthqp, QIB_KD_QP); + + timer_setup(&ppd->cpspec->chase_timer, reenable_7220_chase, 0); + + qib_num_cfg_vls = 1; /* if any 7220's, only one VL */ + + dd->rcvhdrentsize = QIB_RCVHDR_ENTSIZE; + dd->rcvhdrsize = QIB_DFLT_RCVHDRSIZE; + dd->rhf_offset = + dd->rcvhdrentsize - sizeof(u64) / sizeof(u32); + + /* we always allocate at least 2048 bytes for eager buffers */ + ret = ib_mtu_enum_to_int(qib_ibmtu); + dd->rcvegrbufsize = ret != -1 ? max(ret, 2048) : QIB_DEFAULT_MTU; + dd->rcvegrbufsize_shift = ilog2(dd->rcvegrbufsize); + + qib_7220_tidtemplate(dd); + + /* + * We can request a receive interrupt for 1 or + * more packets from current offset. For now, we set this + * up for a single packet. + */ + dd->rhdrhead_intr_off = 1ULL << 32; + + /* setup the stats timer; the add_timer is done at end of init */ + timer_setup(&dd->stats_timer, qib_get_7220_faststats, 0); + dd->stats_timer.expires = jiffies + ACTIVITY_TIMER * HZ; + + /* + * Control[4] has been added to change the arbitration within + * the SDMA engine between favoring data fetches over descriptor + * fetches. qib_sdma_fetch_arb==0 gives data fetches priority. + */ + if (qib_sdma_fetch_arb) + dd->control |= 1 << 4; + + dd->ureg_align = 0x10000; /* 64KB alignment */ + + dd->piosize2kmax_dwords = (dd->piosize2k >> 2)-1; + qib_7220_config_ctxts(dd); + qib_set_ctxtcnt(dd); /* needed for PAT setup */ + + ret = init_chip_wc_pat(dd, 0); + if (ret) + goto bail; + set_7220_baseaddrs(dd); /* set chip access pointers now */ + + ret = 0; + if (qib_mini_init) + goto bail; + + ret = qib_create_ctxts(dd); + init_7220_cntrnames(dd); + + /* use all of 4KB buffers for the kernel SDMA, zero if !SDMA. + * reserve the update threshold amount for other kernel use, such + * as sending SMI, MAD, and ACKs, or 3, whichever is greater, + * unless we aren't enabling SDMA, in which case we want to use + * all the 4k bufs for the kernel. + * if this was less than the update threshold, we could wait + * a long time for an update. Coded this way because we + * sometimes change the update threshold for various reasons, + * and we want this to remain robust. + */ + updthresh = 8U; /* update threshold */ + if (dd->flags & QIB_HAS_SEND_DMA) { + dd->cspec->sdmabufcnt = dd->piobcnt4k; + sbufs = updthresh > 3 ? updthresh : 3; + } else { + dd->cspec->sdmabufcnt = 0; + sbufs = dd->piobcnt4k; + } + + dd->cspec->lastbuf_for_pio = dd->piobcnt2k + dd->piobcnt4k - + dd->cspec->sdmabufcnt; + dd->lastctxt_piobuf = dd->cspec->lastbuf_for_pio - sbufs; + dd->cspec->lastbuf_for_pio--; /* range is <= , not < */ + dd->last_pio = dd->cspec->lastbuf_for_pio; + dd->pbufsctxt = dd->lastctxt_piobuf / + (dd->cfgctxts - dd->first_user_ctxt); + + /* + * if we are at 16 user contexts, we will have one 7 sbufs + * per context, so drop the update threshold to match. We + * want to update before we actually run out, at low pbufs/ctxt + * so give ourselves some margin + */ + if ((dd->pbufsctxt - 2) < updthresh) + updthresh = dd->pbufsctxt - 2; + + dd->cspec->updthresh_dflt = updthresh; + dd->cspec->updthresh = updthresh; + + /* before full enable, no interrupts, no locking needed */ + dd->sendctrl |= (updthresh & SYM_RMASK(SendCtrl, AvailUpdThld)) + << SYM_LSB(SendCtrl, AvailUpdThld); + + dd->psxmitwait_supported = 1; + dd->psxmitwait_check_rate = QIB_7220_PSXMITWAIT_CHECK_RATE; +bail: + return ret; +} + +static u32 __iomem *qib_7220_getsendbuf(struct qib_pportdata *ppd, u64 pbc, + u32 *pbufnum) +{ + u32 first, last, plen = pbc & QIB_PBC_LENGTH_MASK; + struct qib_devdata *dd = ppd->dd; + u32 __iomem *buf; + + if (((pbc >> 32) & PBC_7220_VL15_SEND_CTRL) && + !(ppd->lflags & (QIBL_IB_AUTONEG_INPROG | QIBL_LINKACTIVE))) + buf = get_7220_link_buf(ppd, pbufnum); + else { + if ((plen + 1) > dd->piosize2kmax_dwords) + first = dd->piobcnt2k; + else + first = 0; + /* try 4k if all 2k busy, so same last for both sizes */ + last = dd->cspec->lastbuf_for_pio; + buf = qib_getsendbuf_range(dd, pbufnum, first, last); + } + return buf; +} + +/* these 2 "counters" are really control registers, and are always RW */ +static void qib_set_cntr_7220_sample(struct qib_pportdata *ppd, u32 intv, + u32 start) +{ + write_7220_creg(ppd->dd, cr_psinterval, intv); + write_7220_creg(ppd->dd, cr_psstart, start); +} + +/* + * NOTE: no real attempt is made to generalize the SDMA stuff. + * At some point "soon" we will have a new more generalized + * set of sdma interface, and then we'll clean this up. + */ + +/* Must be called with sdma_lock held, or before init finished */ +static void qib_sdma_update_7220_tail(struct qib_pportdata *ppd, u16 tail) +{ + /* Commit writes to memory and advance the tail on the chip */ + wmb(); + ppd->sdma_descq_tail = tail; + qib_write_kreg(ppd->dd, kr_senddmatail, tail); +} + +static void qib_sdma_set_7220_desc_cnt(struct qib_pportdata *ppd, unsigned cnt) +{ +} + +static struct sdma_set_state_action sdma_7220_action_table[] = { + [qib_sdma_state_s00_hw_down] = { + .op_enable = 0, + .op_intenable = 0, + .op_halt = 0, + .go_s99_running_tofalse = 1, + }, + [qib_sdma_state_s10_hw_start_up_wait] = { + .op_enable = 1, + .op_intenable = 1, + .op_halt = 1, + }, + [qib_sdma_state_s20_idle] = { + .op_enable = 1, + .op_intenable = 1, + .op_halt = 1, + }, + [qib_sdma_state_s30_sw_clean_up_wait] = { + .op_enable = 0, + .op_intenable = 1, + .op_halt = 0, + }, + [qib_sdma_state_s40_hw_clean_up_wait] = { + .op_enable = 1, + .op_intenable = 1, + .op_halt = 1, + }, + [qib_sdma_state_s50_hw_halt_wait] = { + .op_enable = 1, + .op_intenable = 1, + .op_halt = 1, + }, + [qib_sdma_state_s99_running] = { + .op_enable = 1, + .op_intenable = 1, + .op_halt = 0, + .go_s99_running_totrue = 1, + }, +}; + +static void qib_7220_sdma_init_early(struct qib_pportdata *ppd) +{ + ppd->sdma_state.set_state_action = sdma_7220_action_table; +} + +static int init_sdma_7220_regs(struct qib_pportdata *ppd) +{ + struct qib_devdata *dd = ppd->dd; + unsigned i, n; + u64 senddmabufmask[3] = { 0 }; + + /* Set SendDmaBase */ + qib_write_kreg(dd, kr_senddmabase, ppd->sdma_descq_phys); + qib_sdma_7220_setlengen(ppd); + qib_sdma_update_7220_tail(ppd, 0); /* Set SendDmaTail */ + /* Set SendDmaHeadAddr */ + qib_write_kreg(dd, kr_senddmaheadaddr, ppd->sdma_head_phys); + + /* + * Reserve all the former "kernel" piobufs, using high number range + * so we get as many 4K buffers as possible + */ + n = dd->piobcnt2k + dd->piobcnt4k; + i = n - dd->cspec->sdmabufcnt; + + for (; i < n; ++i) { + unsigned word = i / 64; + unsigned bit = i & 63; + + senddmabufmask[word] |= 1ULL << bit; + } + qib_write_kreg(dd, kr_senddmabufmask0, senddmabufmask[0]); + qib_write_kreg(dd, kr_senddmabufmask1, senddmabufmask[1]); + qib_write_kreg(dd, kr_senddmabufmask2, senddmabufmask[2]); + + ppd->sdma_state.first_sendbuf = i; + ppd->sdma_state.last_sendbuf = n; + + return 0; +} + +/* sdma_lock must be held */ +static u16 qib_sdma_7220_gethead(struct qib_pportdata *ppd) +{ + struct qib_devdata *dd = ppd->dd; + int sane; + int use_dmahead; + u16 swhead; + u16 swtail; + u16 cnt; + u16 hwhead; + + use_dmahead = __qib_sdma_running(ppd) && + (dd->flags & QIB_HAS_SDMA_TIMEOUT); +retry: + hwhead = use_dmahead ? + (u16)le64_to_cpu(*ppd->sdma_head_dma) : + (u16)qib_read_kreg32(dd, kr_senddmahead); + + swhead = ppd->sdma_descq_head; + swtail = ppd->sdma_descq_tail; + cnt = ppd->sdma_descq_cnt; + + if (swhead < swtail) { + /* not wrapped */ + sane = (hwhead >= swhead) & (hwhead <= swtail); + } else if (swhead > swtail) { + /* wrapped around */ + sane = ((hwhead >= swhead) && (hwhead < cnt)) || + (hwhead <= swtail); + } else { + /* empty */ + sane = (hwhead == swhead); + } + + if (unlikely(!sane)) { + if (use_dmahead) { + /* try one more time, directly from the register */ + use_dmahead = 0; + goto retry; + } + /* assume no progress */ + hwhead = swhead; + } + + return hwhead; +} + +static int qib_sdma_7220_busy(struct qib_pportdata *ppd) +{ + u64 hwstatus = qib_read_kreg64(ppd->dd, kr_senddmastatus); + + return (hwstatus & SYM_MASK(SendDmaStatus, ScoreBoardDrainInProg)) || + (hwstatus & SYM_MASK(SendDmaStatus, AbortInProg)) || + (hwstatus & SYM_MASK(SendDmaStatus, InternalSDmaEnable)) || + !(hwstatus & SYM_MASK(SendDmaStatus, ScbEmpty)); +} + +/* + * Compute the amount of delay before sending the next packet if the + * port's send rate differs from the static rate set for the QP. + * Since the delay affects this packet but the amount of the delay is + * based on the length of the previous packet, use the last delay computed + * and save the delay count for this packet to be used next time + * we get here. + */ +static u32 qib_7220_setpbc_control(struct qib_pportdata *ppd, u32 plen, + u8 srate, u8 vl) +{ + u8 snd_mult = ppd->delay_mult; + u8 rcv_mult = ib_rate_to_delay[srate]; + u32 ret = ppd->cpspec->last_delay_mult; + + ppd->cpspec->last_delay_mult = (rcv_mult > snd_mult) ? + (plen * (rcv_mult - snd_mult) + 1) >> 1 : 0; + + /* Indicate VL15, if necessary */ + if (vl == 15) + ret |= PBC_7220_VL15_SEND_CTRL; + return ret; +} + +static void qib_7220_initvl15_bufs(struct qib_devdata *dd) +{ +} + +static void qib_7220_init_ctxt(struct qib_ctxtdata *rcd) +{ + if (!rcd->ctxt) { + rcd->rcvegrcnt = IBA7220_KRCVEGRCNT; + rcd->rcvegr_tid_base = 0; + } else { + rcd->rcvegrcnt = rcd->dd->cspec->rcvegrcnt; + rcd->rcvegr_tid_base = IBA7220_KRCVEGRCNT + + (rcd->ctxt - 1) * rcd->rcvegrcnt; + } +} + +static void qib_7220_txchk_change(struct qib_devdata *dd, u32 start, + u32 len, u32 which, struct qib_ctxtdata *rcd) +{ + int i; + unsigned long flags; + + switch (which) { + case TXCHK_CHG_TYPE_KERN: + /* see if we need to raise avail update threshold */ + spin_lock_irqsave(&dd->uctxt_lock, flags); + for (i = dd->first_user_ctxt; + dd->cspec->updthresh != dd->cspec->updthresh_dflt + && i < dd->cfgctxts; i++) + if (dd->rcd[i] && dd->rcd[i]->subctxt_cnt && + ((dd->rcd[i]->piocnt / dd->rcd[i]->subctxt_cnt) - 1) + < dd->cspec->updthresh_dflt) + break; + spin_unlock_irqrestore(&dd->uctxt_lock, flags); + if (i == dd->cfgctxts) { + spin_lock_irqsave(&dd->sendctrl_lock, flags); + dd->cspec->updthresh = dd->cspec->updthresh_dflt; + dd->sendctrl &= ~SYM_MASK(SendCtrl, AvailUpdThld); + dd->sendctrl |= (dd->cspec->updthresh & + SYM_RMASK(SendCtrl, AvailUpdThld)) << + SYM_LSB(SendCtrl, AvailUpdThld); + spin_unlock_irqrestore(&dd->sendctrl_lock, flags); + sendctrl_7220_mod(dd->pport, QIB_SENDCTRL_AVAIL_BLIP); + } + break; + case TXCHK_CHG_TYPE_USER: + spin_lock_irqsave(&dd->sendctrl_lock, flags); + if (rcd && rcd->subctxt_cnt && ((rcd->piocnt + / rcd->subctxt_cnt) - 1) < dd->cspec->updthresh) { + dd->cspec->updthresh = (rcd->piocnt / + rcd->subctxt_cnt) - 1; + dd->sendctrl &= ~SYM_MASK(SendCtrl, AvailUpdThld); + dd->sendctrl |= (dd->cspec->updthresh & + SYM_RMASK(SendCtrl, AvailUpdThld)) + << SYM_LSB(SendCtrl, AvailUpdThld); + spin_unlock_irqrestore(&dd->sendctrl_lock, flags); + sendctrl_7220_mod(dd->pport, QIB_SENDCTRL_AVAIL_BLIP); + } else + spin_unlock_irqrestore(&dd->sendctrl_lock, flags); + break; + } +} + +static void writescratch(struct qib_devdata *dd, u32 val) +{ + qib_write_kreg(dd, kr_scratch, val); +} + +#define VALID_TS_RD_REG_MASK 0xBF +/** + * qib_7220_tempsense_rd - read register of temp sensor via TWSI + * @dd: the qlogic_ib device + * @regnum: register to read from + * + * returns reg contents (0..255) or < 0 for error + */ +static int qib_7220_tempsense_rd(struct qib_devdata *dd, int regnum) +{ + int ret; + u8 rdata; + + if (regnum > 7) { + ret = -EINVAL; + goto bail; + } + + /* return a bogus value for (the one) register we do not have */ + if (!((1 << regnum) & VALID_TS_RD_REG_MASK)) { + ret = 0; + goto bail; + } + + ret = mutex_lock_interruptible(&dd->eep_lock); + if (ret) + goto bail; + + ret = qib_twsi_blk_rd(dd, QIB_TWSI_TEMP_DEV, regnum, &rdata, 1); + if (!ret) + ret = rdata; + + mutex_unlock(&dd->eep_lock); + + /* + * There are three possibilities here: + * ret is actual value (0..255) + * ret is -ENXIO or -EINVAL from twsi code or this file + * ret is -EINTR from mutex_lock_interruptible. + */ +bail: + return ret; +} + +#ifdef CONFIG_INFINIBAND_QIB_DCA +static int qib_7220_notify_dca(struct qib_devdata *dd, unsigned long event) +{ + return 0; +} +#endif + +/* Dummy function, as 7220 boards never disable EEPROM Write */ +static int qib_7220_eeprom_wen(struct qib_devdata *dd, int wen) +{ + return 1; +} + +/** + * qib_init_iba7220_funcs - set up the chip-specific function pointers + * @pdev: the pci_dev for qlogic_ib device + * @ent: pci_device_id struct for this dev + * + * This is global, and is called directly at init to set up the + * chip-specific function pointers for later use. + */ +struct qib_devdata *qib_init_iba7220_funcs(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct qib_devdata *dd; + int ret; + u32 boardid, minwidth; + + dd = qib_alloc_devdata(pdev, sizeof(struct qib_chip_specific) + + sizeof(struct qib_chippport_specific)); + if (IS_ERR(dd)) + goto bail; + + dd->f_bringup_serdes = qib_7220_bringup_serdes; + dd->f_cleanup = qib_setup_7220_cleanup; + dd->f_clear_tids = qib_7220_clear_tids; + dd->f_free_irq = qib_free_irq; + dd->f_get_base_info = qib_7220_get_base_info; + dd->f_get_msgheader = qib_7220_get_msgheader; + dd->f_getsendbuf = qib_7220_getsendbuf; + dd->f_gpio_mod = gpio_7220_mod; + dd->f_eeprom_wen = qib_7220_eeprom_wen; + dd->f_hdrqempty = qib_7220_hdrqempty; + dd->f_ib_updown = qib_7220_ib_updown; + dd->f_init_ctxt = qib_7220_init_ctxt; + dd->f_initvl15_bufs = qib_7220_initvl15_bufs; + dd->f_intr_fallback = qib_7220_intr_fallback; + dd->f_late_initreg = qib_late_7220_initreg; + dd->f_setpbc_control = qib_7220_setpbc_control; + dd->f_portcntr = qib_portcntr_7220; + dd->f_put_tid = qib_7220_put_tid; + dd->f_quiet_serdes = qib_7220_quiet_serdes; + dd->f_rcvctrl = rcvctrl_7220_mod; + dd->f_read_cntrs = qib_read_7220cntrs; + dd->f_read_portcntrs = qib_read_7220portcntrs; + dd->f_reset = qib_setup_7220_reset; + dd->f_init_sdma_regs = init_sdma_7220_regs; + dd->f_sdma_busy = qib_sdma_7220_busy; + dd->f_sdma_gethead = qib_sdma_7220_gethead; + dd->f_sdma_sendctrl = qib_7220_sdma_sendctrl; + dd->f_sdma_set_desc_cnt = qib_sdma_set_7220_desc_cnt; + dd->f_sdma_update_tail = qib_sdma_update_7220_tail; + dd->f_sdma_hw_clean_up = qib_7220_sdma_hw_clean_up; + dd->f_sdma_hw_start_up = qib_7220_sdma_hw_start_up; + dd->f_sdma_init_early = qib_7220_sdma_init_early; + dd->f_sendctrl = sendctrl_7220_mod; + dd->f_set_armlaunch = qib_set_7220_armlaunch; + dd->f_set_cntr_sample = qib_set_cntr_7220_sample; + dd->f_iblink_state = qib_7220_iblink_state; + dd->f_ibphys_portstate = qib_7220_phys_portstate; + dd->f_get_ib_cfg = qib_7220_get_ib_cfg; + dd->f_set_ib_cfg = qib_7220_set_ib_cfg; + dd->f_set_ib_loopback = qib_7220_set_loopback; + dd->f_set_intr_state = qib_7220_set_intr_state; + dd->f_setextled = qib_setup_7220_setextled; + dd->f_txchk_change = qib_7220_txchk_change; + dd->f_update_usrhead = qib_update_7220_usrhead; + dd->f_wantpiobuf_intr = qib_wantpiobuf_7220_intr; + dd->f_xgxs_reset = qib_7220_xgxs_reset; + dd->f_writescratch = writescratch; + dd->f_tempsense_rd = qib_7220_tempsense_rd; +#ifdef CONFIG_INFINIBAND_QIB_DCA + dd->f_notify_dca = qib_7220_notify_dca; +#endif + /* + * Do remaining pcie setup and save pcie values in dd. + * Any error printing is already done by the init code. + * On return, we have the chip mapped, but chip registers + * are not set up until start of qib_init_7220_variables. + */ + ret = qib_pcie_ddinit(dd, pdev, ent); + if (ret < 0) + goto bail_free; + + /* initialize chip-specific variables */ + ret = qib_init_7220_variables(dd); + if (ret) + goto bail_cleanup; + + if (qib_mini_init) + goto bail; + + boardid = SYM_FIELD(dd->revision, Revision, + BoardID); + switch (boardid) { + case 0: + case 2: + case 10: + case 12: + minwidth = 16; /* x16 capable boards */ + break; + default: + minwidth = 8; /* x8 capable boards */ + break; + } + if (qib_pcie_params(dd, minwidth, NULL)) + qib_dev_err(dd, + "Failed to setup PCIe or interrupts; continuing anyway\n"); + + if (qib_read_kreg64(dd, kr_hwerrstatus) & + QLOGIC_IB_HWE_SERDESPLLFAILED) + qib_write_kreg(dd, kr_hwerrclear, + QLOGIC_IB_HWE_SERDESPLLFAILED); + + /* setup interrupt handler (interrupt type handled above) */ + qib_setup_7220_interrupt(dd); + qib_7220_init_hwerrors(dd); + + /* clear diagctrl register, in case diags were running and crashed */ + qib_write_kreg(dd, kr_hwdiagctrl, 0); + + goto bail; + +bail_cleanup: + qib_pcie_ddcleanup(dd); +bail_free: + qib_free_devdata(dd); + dd = ERR_PTR(ret); +bail: + return dd; +} diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c new file mode 100644 index 000000000..9d2dd135b --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_iba7322.c @@ -0,0 +1,8475 @@ +/* + * Copyright (c) 2012 - 2017 Intel Corporation. All rights reserved. + * Copyright (c) 2008 - 2012 QLogic Corporation. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +/* + * This file contains all of the code that is specific to the + * InfiniPath 7322 chip + */ + +#include <linux/interrupt.h> +#include <linux/pci.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/jiffies.h> +#include <linux/module.h> +#include <rdma/ib_verbs.h> +#include <rdma/ib_smi.h> +#ifdef CONFIG_INFINIBAND_QIB_DCA +#include <linux/dca.h> +#endif + +#include "qib.h" +#include "qib_7322_regs.h" +#include "qib_qsfp.h" + +#include "qib_mad.h" +#include "qib_verbs.h" + +#undef pr_fmt +#define pr_fmt(fmt) QIB_DRV_NAME " " fmt + +static void qib_setup_7322_setextled(struct qib_pportdata *, u32); +static void qib_7322_handle_hwerrors(struct qib_devdata *, char *, size_t); +static void sendctrl_7322_mod(struct qib_pportdata *ppd, u32 op); +static irqreturn_t qib_7322intr(int irq, void *data); +static irqreturn_t qib_7322bufavail(int irq, void *data); +static irqreturn_t sdma_intr(int irq, void *data); +static irqreturn_t sdma_idle_intr(int irq, void *data); +static irqreturn_t sdma_progress_intr(int irq, void *data); +static irqreturn_t sdma_cleanup_intr(int irq, void *data); +static void qib_7322_txchk_change(struct qib_devdata *, u32, u32, u32, + struct qib_ctxtdata *rcd); +static u8 qib_7322_phys_portstate(u64); +static u32 qib_7322_iblink_state(u64); +static void qib_set_ib_7322_lstate(struct qib_pportdata *ppd, u16 linkcmd, + u16 linitcmd); +static void force_h1(struct qib_pportdata *); +static void adj_tx_serdes(struct qib_pportdata *); +static u32 qib_7322_setpbc_control(struct qib_pportdata *, u32, u8, u8); +static void qib_7322_mini_pcs_reset(struct qib_pportdata *); + +static u32 ahb_mod(struct qib_devdata *, int, int, int, u32, u32); +static void ibsd_wr_allchans(struct qib_pportdata *, int, unsigned, unsigned); +static void serdes_7322_los_enable(struct qib_pportdata *, int); +static int serdes_7322_init_old(struct qib_pportdata *); +static int serdes_7322_init_new(struct qib_pportdata *); +static void dump_sdma_7322_state(struct qib_pportdata *); + +#define BMASK(msb, lsb) (((1 << ((msb) + 1 - (lsb))) - 1) << (lsb)) + +/* LE2 serdes values for different cases */ +#define LE2_DEFAULT 5 +#define LE2_5m 4 +#define LE2_QME 0 + +/* Below is special-purpose, so only really works for the IB SerDes blocks. */ +#define IBSD(hw_pidx) (hw_pidx + 2) + +/* these are variables for documentation and experimentation purposes */ +static const unsigned rcv_int_timeout = 375; +static const unsigned rcv_int_count = 16; +static const unsigned sdma_idle_cnt = 64; + +/* Time to stop altering Rx Equalization parameters, after link up. */ +#define RXEQ_DISABLE_MSECS 2500 + +/* + * Number of VLs we are configured to use (to allow for more + * credits per vl, etc.) + */ +ushort qib_num_cfg_vls = 2; +module_param_named(num_vls, qib_num_cfg_vls, ushort, S_IRUGO); +MODULE_PARM_DESC(num_vls, "Set number of Virtual Lanes to use (1-8)"); + +static ushort qib_chase = 1; +module_param_named(chase, qib_chase, ushort, S_IRUGO); +MODULE_PARM_DESC(chase, "Enable state chase handling"); + +static ushort qib_long_atten = 10; /* 10 dB ~= 5m length */ +module_param_named(long_attenuation, qib_long_atten, ushort, S_IRUGO); +MODULE_PARM_DESC(long_attenuation, + "attenuation cutoff (dB) for long copper cable setup"); + +static ushort qib_singleport; +module_param_named(singleport, qib_singleport, ushort, S_IRUGO); +MODULE_PARM_DESC(singleport, "Use only IB port 1; more per-port buffer space"); + +static ushort qib_krcvq01_no_msi; +module_param_named(krcvq01_no_msi, qib_krcvq01_no_msi, ushort, S_IRUGO); +MODULE_PARM_DESC(krcvq01_no_msi, "No MSI for kctx < 2"); + +/* + * Receive header queue sizes + */ +static unsigned qib_rcvhdrcnt; +module_param_named(rcvhdrcnt, qib_rcvhdrcnt, uint, S_IRUGO); +MODULE_PARM_DESC(rcvhdrcnt, "receive header count"); + +static unsigned qib_rcvhdrsize; +module_param_named(rcvhdrsize, qib_rcvhdrsize, uint, S_IRUGO); +MODULE_PARM_DESC(rcvhdrsize, "receive header size in 32-bit words"); + +static unsigned qib_rcvhdrentsize; +module_param_named(rcvhdrentsize, qib_rcvhdrentsize, uint, S_IRUGO); +MODULE_PARM_DESC(rcvhdrentsize, "receive header entry size in 32-bit words"); + +#define MAX_ATTEN_LEN 64 /* plenty for any real system */ +/* for read back, default index is ~5m copper cable */ +static char txselect_list[MAX_ATTEN_LEN] = "10"; +static struct kparam_string kp_txselect = { + .string = txselect_list, + .maxlen = MAX_ATTEN_LEN +}; +static int setup_txselect(const char *, const struct kernel_param *); +module_param_call(txselect, setup_txselect, param_get_string, + &kp_txselect, S_IWUSR | S_IRUGO); +MODULE_PARM_DESC(txselect, + "Tx serdes indices (for no QSFP or invalid QSFP data)"); + +#define BOARD_QME7342 5 +#define BOARD_QMH7342 6 +#define BOARD_QMH7360 9 +#define IS_QMH(dd) (SYM_FIELD((dd)->revision, Revision, BoardID) == \ + BOARD_QMH7342) +#define IS_QME(dd) (SYM_FIELD((dd)->revision, Revision, BoardID) == \ + BOARD_QME7342) + +#define KREG_IDX(regname) (QIB_7322_##regname##_OFFS / sizeof(u64)) + +#define KREG_IBPORT_IDX(regname) ((QIB_7322_##regname##_0_OFFS / sizeof(u64))) + +#define MASK_ACROSS(lsb, msb) \ + (((1ULL << ((msb) + 1 - (lsb))) - 1) << (lsb)) + +#define SYM_RMASK(regname, fldname) ((u64) \ + QIB_7322_##regname##_##fldname##_RMASK) + +#define SYM_MASK(regname, fldname) ((u64) \ + QIB_7322_##regname##_##fldname##_RMASK << \ + QIB_7322_##regname##_##fldname##_LSB) + +#define SYM_FIELD(value, regname, fldname) ((u64) \ + (((value) >> SYM_LSB(regname, fldname)) & \ + SYM_RMASK(regname, fldname))) + +/* useful for things like LaFifoEmpty_0...7, TxCreditOK_0...7, etc. */ +#define SYM_FIELD_ACROSS(value, regname, fldname, nbits) \ + (((value) >> SYM_LSB(regname, fldname)) & MASK_ACROSS(0, nbits)) + +#define HWE_MASK(fldname) SYM_MASK(HwErrMask, fldname##Mask) +#define ERR_MASK(fldname) SYM_MASK(ErrMask, fldname##Mask) +#define ERR_MASK_N(fldname) SYM_MASK(ErrMask_0, fldname##Mask) +#define INT_MASK(fldname) SYM_MASK(IntMask, fldname##IntMask) +#define INT_MASK_P(fldname, port) SYM_MASK(IntMask, fldname##IntMask##_##port) +/* Below because most, but not all, fields of IntMask have that full suffix */ +#define INT_MASK_PM(fldname, port) SYM_MASK(IntMask, fldname##Mask##_##port) + + +#define SYM_LSB(regname, fldname) (QIB_7322_##regname##_##fldname##_LSB) + +/* + * the size bits give us 2^N, in KB units. 0 marks as invalid, + * and 7 is reserved. We currently use only 2KB and 4KB + */ +#define IBA7322_TID_SZ_SHIFT QIB_7322_RcvTIDArray0_RT_BufSize_LSB +#define IBA7322_TID_SZ_2K (1UL<<IBA7322_TID_SZ_SHIFT) /* 2KB */ +#define IBA7322_TID_SZ_4K (2UL<<IBA7322_TID_SZ_SHIFT) /* 4KB */ +#define IBA7322_TID_PA_SHIFT 11U /* TID addr in chip stored w/o low bits */ + +#define SendIBSLIDAssignMask \ + QIB_7322_SendIBSLIDAssign_0_SendIBSLIDAssign_15_0_RMASK +#define SendIBSLMCMask \ + QIB_7322_SendIBSLIDMask_0_SendIBSLIDMask_15_0_RMASK + +#define ExtLED_IB1_YEL SYM_MASK(EXTCtrl, LEDPort0YellowOn) +#define ExtLED_IB1_GRN SYM_MASK(EXTCtrl, LEDPort0GreenOn) +#define ExtLED_IB2_YEL SYM_MASK(EXTCtrl, LEDPort1YellowOn) +#define ExtLED_IB2_GRN SYM_MASK(EXTCtrl, LEDPort1GreenOn) +#define ExtLED_IB1_MASK (ExtLED_IB1_YEL | ExtLED_IB1_GRN) +#define ExtLED_IB2_MASK (ExtLED_IB2_YEL | ExtLED_IB2_GRN) + +#define _QIB_GPIO_SDA_NUM 1 +#define _QIB_GPIO_SCL_NUM 0 +#define QIB_EEPROM_WEN_NUM 14 +#define QIB_TWSI_EEPROM_DEV 0xA2 /* All Production 7322 cards. */ + +/* HW counter clock is at 4nsec */ +#define QIB_7322_PSXMITWAIT_CHECK_RATE 4000 + +/* full speed IB port 1 only */ +#define PORT_SPD_CAP (QIB_IB_SDR | QIB_IB_DDR | QIB_IB_QDR) +#define PORT_SPD_CAP_SHIFT 3 + +/* full speed featuremask, both ports */ +#define DUAL_PORT_CAP (PORT_SPD_CAP | (PORT_SPD_CAP << PORT_SPD_CAP_SHIFT)) + +/* + * This file contains almost all the chip-specific register information and + * access functions for the FAKED QLogic InfiniPath 7322 PCI-Express chip. + */ + +/* Use defines to tie machine-generated names to lower-case names */ +#define kr_contextcnt KREG_IDX(ContextCnt) +#define kr_control KREG_IDX(Control) +#define kr_counterregbase KREG_IDX(CntrRegBase) +#define kr_errclear KREG_IDX(ErrClear) +#define kr_errmask KREG_IDX(ErrMask) +#define kr_errstatus KREG_IDX(ErrStatus) +#define kr_extctrl KREG_IDX(EXTCtrl) +#define kr_extstatus KREG_IDX(EXTStatus) +#define kr_gpio_clear KREG_IDX(GPIOClear) +#define kr_gpio_mask KREG_IDX(GPIOMask) +#define kr_gpio_out KREG_IDX(GPIOOut) +#define kr_gpio_status KREG_IDX(GPIOStatus) +#define kr_hwdiagctrl KREG_IDX(HwDiagCtrl) +#define kr_debugportval KREG_IDX(DebugPortValueReg) +#define kr_fmask KREG_IDX(feature_mask) +#define kr_act_fmask KREG_IDX(active_feature_mask) +#define kr_hwerrclear KREG_IDX(HwErrClear) +#define kr_hwerrmask KREG_IDX(HwErrMask) +#define kr_hwerrstatus KREG_IDX(HwErrStatus) +#define kr_intclear KREG_IDX(IntClear) +#define kr_intmask KREG_IDX(IntMask) +#define kr_intredirect KREG_IDX(IntRedirect0) +#define kr_intstatus KREG_IDX(IntStatus) +#define kr_pagealign KREG_IDX(PageAlign) +#define kr_rcvavailtimeout KREG_IDX(RcvAvailTimeOut0) +#define kr_rcvctrl KREG_IDX(RcvCtrl) /* Common, but chip also has per-port */ +#define kr_rcvegrbase KREG_IDX(RcvEgrBase) +#define kr_rcvegrcnt KREG_IDX(RcvEgrCnt) +#define kr_rcvhdrcnt KREG_IDX(RcvHdrCnt) +#define kr_rcvhdrentsize KREG_IDX(RcvHdrEntSize) +#define kr_rcvhdrsize KREG_IDX(RcvHdrSize) +#define kr_rcvtidbase KREG_IDX(RcvTIDBase) +#define kr_rcvtidcnt KREG_IDX(RcvTIDCnt) +#define kr_revision KREG_IDX(Revision) +#define kr_scratch KREG_IDX(Scratch) +#define kr_sendbuffererror KREG_IDX(SendBufErr0) /* and base for 1 and 2 */ +#define kr_sendcheckmask KREG_IDX(SendCheckMask0) /* and 1, 2 */ +#define kr_sendctrl KREG_IDX(SendCtrl) +#define kr_sendgrhcheckmask KREG_IDX(SendGRHCheckMask0) /* and 1, 2 */ +#define kr_sendibpktmask KREG_IDX(SendIBPacketMask0) /* and 1, 2 */ +#define kr_sendpioavailaddr KREG_IDX(SendBufAvailAddr) +#define kr_sendpiobufbase KREG_IDX(SendBufBase) +#define kr_sendpiobufcnt KREG_IDX(SendBufCnt) +#define kr_sendpiosize KREG_IDX(SendBufSize) +#define kr_sendregbase KREG_IDX(SendRegBase) +#define kr_sendbufavail0 KREG_IDX(SendBufAvail0) +#define kr_userregbase KREG_IDX(UserRegBase) +#define kr_intgranted KREG_IDX(Int_Granted) +#define kr_vecclr_wo_int KREG_IDX(vec_clr_without_int) +#define kr_intblocked KREG_IDX(IntBlocked) +#define kr_r_access KREG_IDX(SPC_JTAG_ACCESS_REG) + +/* + * per-port kernel registers. Access only with qib_read_kreg_port() + * or qib_write_kreg_port() + */ +#define krp_errclear KREG_IBPORT_IDX(ErrClear) +#define krp_errmask KREG_IBPORT_IDX(ErrMask) +#define krp_errstatus KREG_IBPORT_IDX(ErrStatus) +#define krp_highprio_0 KREG_IBPORT_IDX(HighPriority0) +#define krp_highprio_limit KREG_IBPORT_IDX(HighPriorityLimit) +#define krp_hrtbt_guid KREG_IBPORT_IDX(HRTBT_GUID) +#define krp_ib_pcsconfig KREG_IBPORT_IDX(IBPCSConfig) +#define krp_ibcctrl_a KREG_IBPORT_IDX(IBCCtrlA) +#define krp_ibcctrl_b KREG_IBPORT_IDX(IBCCtrlB) +#define krp_ibcctrl_c KREG_IBPORT_IDX(IBCCtrlC) +#define krp_ibcstatus_a KREG_IBPORT_IDX(IBCStatusA) +#define krp_ibcstatus_b KREG_IBPORT_IDX(IBCStatusB) +#define krp_txestatus KREG_IBPORT_IDX(TXEStatus) +#define krp_lowprio_0 KREG_IBPORT_IDX(LowPriority0) +#define krp_ncmodectrl KREG_IBPORT_IDX(IBNCModeCtrl) +#define krp_partitionkey KREG_IBPORT_IDX(RcvPartitionKey) +#define krp_psinterval KREG_IBPORT_IDX(PSInterval) +#define krp_psstart KREG_IBPORT_IDX(PSStart) +#define krp_psstat KREG_IBPORT_IDX(PSStat) +#define krp_rcvbthqp KREG_IBPORT_IDX(RcvBTHQP) +#define krp_rcvctrl KREG_IBPORT_IDX(RcvCtrl) +#define krp_rcvpktledcnt KREG_IBPORT_IDX(RcvPktLEDCnt) +#define krp_rcvqpmaptable KREG_IBPORT_IDX(RcvQPMapTableA) +#define krp_rxcreditvl0 KREG_IBPORT_IDX(RxCreditVL0) +#define krp_rxcreditvl15 (KREG_IBPORT_IDX(RxCreditVL0)+15) +#define krp_sendcheckcontrol KREG_IBPORT_IDX(SendCheckControl) +#define krp_sendctrl KREG_IBPORT_IDX(SendCtrl) +#define krp_senddmabase KREG_IBPORT_IDX(SendDmaBase) +#define krp_senddmabufmask0 KREG_IBPORT_IDX(SendDmaBufMask0) +#define krp_senddmabufmask1 (KREG_IBPORT_IDX(SendDmaBufMask0) + 1) +#define krp_senddmabufmask2 (KREG_IBPORT_IDX(SendDmaBufMask0) + 2) +#define krp_senddmabuf_use0 KREG_IBPORT_IDX(SendDmaBufUsed0) +#define krp_senddmabuf_use1 (KREG_IBPORT_IDX(SendDmaBufUsed0) + 1) +#define krp_senddmabuf_use2 (KREG_IBPORT_IDX(SendDmaBufUsed0) + 2) +#define krp_senddmadesccnt KREG_IBPORT_IDX(SendDmaDescCnt) +#define krp_senddmahead KREG_IBPORT_IDX(SendDmaHead) +#define krp_senddmaheadaddr KREG_IBPORT_IDX(SendDmaHeadAddr) +#define krp_senddmaidlecnt KREG_IBPORT_IDX(SendDmaIdleCnt) +#define krp_senddmalengen KREG_IBPORT_IDX(SendDmaLenGen) +#define krp_senddmaprioritythld KREG_IBPORT_IDX(SendDmaPriorityThld) +#define krp_senddmareloadcnt KREG_IBPORT_IDX(SendDmaReloadCnt) +#define krp_senddmastatus KREG_IBPORT_IDX(SendDmaStatus) +#define krp_senddmatail KREG_IBPORT_IDX(SendDmaTail) +#define krp_sendhdrsymptom KREG_IBPORT_IDX(SendHdrErrSymptom) +#define krp_sendslid KREG_IBPORT_IDX(SendIBSLIDAssign) +#define krp_sendslidmask KREG_IBPORT_IDX(SendIBSLIDMask) +#define krp_ibsdtestiftx KREG_IBPORT_IDX(IB_SDTEST_IF_TX) +#define krp_adapt_dis_timer KREG_IBPORT_IDX(ADAPT_DISABLE_TIMER_THRESHOLD) +#define krp_tx_deemph_override KREG_IBPORT_IDX(IBSD_TX_DEEMPHASIS_OVERRIDE) +#define krp_serdesctrl KREG_IBPORT_IDX(IBSerdesCtrl) + +/* + * Per-context kernel registers. Access only with qib_read_kreg_ctxt() + * or qib_write_kreg_ctxt() + */ +#define krc_rcvhdraddr KREG_IDX(RcvHdrAddr0) +#define krc_rcvhdrtailaddr KREG_IDX(RcvHdrTailAddr0) + +/* + * TID Flow table, per context. Reduces + * number of hdrq updates to one per flow (or on errors). + * context 0 and 1 share same memory, but have distinct + * addresses. Since for now, we never use expected sends + * on kernel contexts, we don't worry about that (we initialize + * those entries for ctxt 0/1 on driver load twice, for example). + */ +#define NUM_TIDFLOWS_CTXT 0x20 /* 0x20 per context; have to hardcode */ +#define ur_rcvflowtable (KREG_IDX(RcvTIDFlowTable0) - KREG_IDX(RcvHdrTail0)) + +/* these are the error bits in the tid flows, and are W1C */ +#define TIDFLOW_ERRBITS ( \ + (SYM_MASK(RcvTIDFlowTable0, GenMismatch) << \ + SYM_LSB(RcvTIDFlowTable0, GenMismatch)) | \ + (SYM_MASK(RcvTIDFlowTable0, SeqMismatch) << \ + SYM_LSB(RcvTIDFlowTable0, SeqMismatch))) + +/* Most (not all) Counters are per-IBport. + * Requires LBIntCnt is at offset 0 in the group + */ +#define CREG_IDX(regname) \ +((QIB_7322_##regname##_0_OFFS - QIB_7322_LBIntCnt_OFFS) / sizeof(u64)) + +#define crp_badformat CREG_IDX(RxVersionErrCnt) +#define crp_err_rlen CREG_IDX(RxLenErrCnt) +#define crp_erricrc CREG_IDX(RxICRCErrCnt) +#define crp_errlink CREG_IDX(RxLinkMalformCnt) +#define crp_errlpcrc CREG_IDX(RxLPCRCErrCnt) +#define crp_errpkey CREG_IDX(RxPKeyMismatchCnt) +#define crp_errvcrc CREG_IDX(RxVCRCErrCnt) +#define crp_excessbufferovfl CREG_IDX(ExcessBufferOvflCnt) +#define crp_iblinkdown CREG_IDX(IBLinkDownedCnt) +#define crp_iblinkerrrecov CREG_IDX(IBLinkErrRecoveryCnt) +#define crp_ibstatuschange CREG_IDX(IBStatusChangeCnt) +#define crp_ibsymbolerr CREG_IDX(IBSymbolErrCnt) +#define crp_invalidrlen CREG_IDX(RxMaxMinLenErrCnt) +#define crp_locallinkintegrityerr CREG_IDX(LocalLinkIntegrityErrCnt) +#define crp_pktrcv CREG_IDX(RxDataPktCnt) +#define crp_pktrcvflowctrl CREG_IDX(RxFlowPktCnt) +#define crp_pktsend CREG_IDX(TxDataPktCnt) +#define crp_pktsendflow CREG_IDX(TxFlowPktCnt) +#define crp_psrcvdatacount CREG_IDX(PSRcvDataCount) +#define crp_psrcvpktscount CREG_IDX(PSRcvPktsCount) +#define crp_psxmitdatacount CREG_IDX(PSXmitDataCount) +#define crp_psxmitpktscount CREG_IDX(PSXmitPktsCount) +#define crp_psxmitwaitcount CREG_IDX(PSXmitWaitCount) +#define crp_rcvebp CREG_IDX(RxEBPCnt) +#define crp_rcvflowctrlviol CREG_IDX(RxFlowCtrlViolCnt) +#define crp_rcvovfl CREG_IDX(RxBufOvflCnt) +#define crp_rxdlidfltr CREG_IDX(RxDlidFltrCnt) +#define crp_rxdroppkt CREG_IDX(RxDroppedPktCnt) +#define crp_rxotherlocalphyerr CREG_IDX(RxOtherLocalPhyErrCnt) +#define crp_rxqpinvalidctxt CREG_IDX(RxQPInvalidContextCnt) +#define crp_rxvlerr CREG_IDX(RxVlErrCnt) +#define crp_sendstall CREG_IDX(TxFlowStallCnt) +#define crp_txdroppedpkt CREG_IDX(TxDroppedPktCnt) +#define crp_txhdrerr CREG_IDX(TxHeadersErrCnt) +#define crp_txlenerr CREG_IDX(TxLenErrCnt) +#define crp_txminmaxlenerr CREG_IDX(TxMaxMinLenErrCnt) +#define crp_txsdmadesc CREG_IDX(TxSDmaDescCnt) +#define crp_txunderrun CREG_IDX(TxUnderrunCnt) +#define crp_txunsupvl CREG_IDX(TxUnsupVLErrCnt) +#define crp_vl15droppedpkt CREG_IDX(RxVL15DroppedPktCnt) +#define crp_wordrcv CREG_IDX(RxDwordCnt) +#define crp_wordsend CREG_IDX(TxDwordCnt) +#define crp_tx_creditstalls CREG_IDX(TxCreditUpToDateTimeOut) + +/* these are the (few) counters that are not port-specific */ +#define CREG_DEVIDX(regname) ((QIB_7322_##regname##_OFFS - \ + QIB_7322_LBIntCnt_OFFS) / sizeof(u64)) +#define cr_base_egrovfl CREG_DEVIDX(RxP0HdrEgrOvflCnt) +#define cr_lbint CREG_DEVIDX(LBIntCnt) +#define cr_lbstall CREG_DEVIDX(LBFlowStallCnt) +#define cr_pcieretrydiag CREG_DEVIDX(PcieRetryBufDiagQwordCnt) +#define cr_rxtidflowdrop CREG_DEVIDX(RxTidFlowDropCnt) +#define cr_tidfull CREG_DEVIDX(RxTIDFullErrCnt) +#define cr_tidinvalid CREG_DEVIDX(RxTIDValidErrCnt) + +/* no chip register for # of IB ports supported, so define */ +#define NUM_IB_PORTS 2 + +/* 1 VL15 buffer per hardware IB port, no register for this, so define */ +#define NUM_VL15_BUFS NUM_IB_PORTS + +/* + * context 0 and 1 are special, and there is no chip register that + * defines this value, so we have to define it here. + * These are all allocated to either 0 or 1 for single port + * hardware configuration, otherwise each gets half + */ +#define KCTXT0_EGRCNT 2048 + +/* values for vl and port fields in PBC, 7322-specific */ +#define PBC_PORT_SEL_LSB 26 +#define PBC_PORT_SEL_RMASK 1 +#define PBC_VL_NUM_LSB 27 +#define PBC_VL_NUM_RMASK 7 +#define PBC_7322_VL15_SEND (1ULL << 63) /* pbc; VL15, no credit check */ +#define PBC_7322_VL15_SEND_CTRL (1ULL << 31) /* control version of same */ + +static u8 ib_rate_to_delay[IB_RATE_120_GBPS + 1] = { + [IB_RATE_2_5_GBPS] = 16, + [IB_RATE_5_GBPS] = 8, + [IB_RATE_10_GBPS] = 4, + [IB_RATE_20_GBPS] = 2, + [IB_RATE_30_GBPS] = 2, + [IB_RATE_40_GBPS] = 1 +}; + +static const char * const qib_sdma_state_names[] = { + [qib_sdma_state_s00_hw_down] = "s00_HwDown", + [qib_sdma_state_s10_hw_start_up_wait] = "s10_HwStartUpWait", + [qib_sdma_state_s20_idle] = "s20_Idle", + [qib_sdma_state_s30_sw_clean_up_wait] = "s30_SwCleanUpWait", + [qib_sdma_state_s40_hw_clean_up_wait] = "s40_HwCleanUpWait", + [qib_sdma_state_s50_hw_halt_wait] = "s50_HwHaltWait", + [qib_sdma_state_s99_running] = "s99_Running", +}; + +#define IBA7322_LINKSPEED_SHIFT SYM_LSB(IBCStatusA_0, LinkSpeedActive) +#define IBA7322_LINKWIDTH_SHIFT SYM_LSB(IBCStatusA_0, LinkWidthActive) + +/* link training states, from IBC */ +#define IB_7322_LT_STATE_DISABLED 0x00 +#define IB_7322_LT_STATE_LINKUP 0x01 +#define IB_7322_LT_STATE_POLLACTIVE 0x02 +#define IB_7322_LT_STATE_POLLQUIET 0x03 +#define IB_7322_LT_STATE_SLEEPDELAY 0x04 +#define IB_7322_LT_STATE_SLEEPQUIET 0x05 +#define IB_7322_LT_STATE_CFGDEBOUNCE 0x08 +#define IB_7322_LT_STATE_CFGRCVFCFG 0x09 +#define IB_7322_LT_STATE_CFGWAITRMT 0x0a +#define IB_7322_LT_STATE_CFGIDLE 0x0b +#define IB_7322_LT_STATE_RECOVERRETRAIN 0x0c +#define IB_7322_LT_STATE_TXREVLANES 0x0d +#define IB_7322_LT_STATE_RECOVERWAITRMT 0x0e +#define IB_7322_LT_STATE_RECOVERIDLE 0x0f +#define IB_7322_LT_STATE_CFGENH 0x10 +#define IB_7322_LT_STATE_CFGTEST 0x11 +#define IB_7322_LT_STATE_CFGWAITRMTTEST 0x12 +#define IB_7322_LT_STATE_CFGWAITENH 0x13 + +/* link state machine states from IBC */ +#define IB_7322_L_STATE_DOWN 0x0 +#define IB_7322_L_STATE_INIT 0x1 +#define IB_7322_L_STATE_ARM 0x2 +#define IB_7322_L_STATE_ACTIVE 0x3 +#define IB_7322_L_STATE_ACT_DEFER 0x4 + +static const u8 qib_7322_physportstate[0x20] = { + [IB_7322_LT_STATE_DISABLED] = IB_PHYSPORTSTATE_DISABLED, + [IB_7322_LT_STATE_LINKUP] = IB_PHYSPORTSTATE_LINKUP, + [IB_7322_LT_STATE_POLLACTIVE] = IB_PHYSPORTSTATE_POLL, + [IB_7322_LT_STATE_POLLQUIET] = IB_PHYSPORTSTATE_POLL, + [IB_7322_LT_STATE_SLEEPDELAY] = IB_PHYSPORTSTATE_SLEEP, + [IB_7322_LT_STATE_SLEEPQUIET] = IB_PHYSPORTSTATE_SLEEP, + [IB_7322_LT_STATE_CFGDEBOUNCE] = IB_PHYSPORTSTATE_CFG_TRAIN, + [IB_7322_LT_STATE_CFGRCVFCFG] = + IB_PHYSPORTSTATE_CFG_TRAIN, + [IB_7322_LT_STATE_CFGWAITRMT] = + IB_PHYSPORTSTATE_CFG_TRAIN, + [IB_7322_LT_STATE_CFGIDLE] = IB_PHYSPORTSTATE_CFG_IDLE, + [IB_7322_LT_STATE_RECOVERRETRAIN] = + IB_PHYSPORTSTATE_LINK_ERR_RECOVER, + [IB_7322_LT_STATE_RECOVERWAITRMT] = + IB_PHYSPORTSTATE_LINK_ERR_RECOVER, + [IB_7322_LT_STATE_RECOVERIDLE] = + IB_PHYSPORTSTATE_LINK_ERR_RECOVER, + [IB_7322_LT_STATE_CFGENH] = IB_PHYSPORTSTATE_CFG_ENH, + [IB_7322_LT_STATE_CFGTEST] = IB_PHYSPORTSTATE_CFG_TRAIN, + [IB_7322_LT_STATE_CFGWAITRMTTEST] = + IB_PHYSPORTSTATE_CFG_TRAIN, + [IB_7322_LT_STATE_CFGWAITENH] = + IB_PHYSPORTSTATE_CFG_WAIT_ENH, + [0x14] = IB_PHYSPORTSTATE_CFG_TRAIN, + [0x15] = IB_PHYSPORTSTATE_CFG_TRAIN, + [0x16] = IB_PHYSPORTSTATE_CFG_TRAIN, + [0x17] = IB_PHYSPORTSTATE_CFG_TRAIN +}; + +#ifdef CONFIG_INFINIBAND_QIB_DCA +struct qib_irq_notify { + int rcv; + void *arg; + struct irq_affinity_notify notify; +}; +#endif + +struct qib_chip_specific { + u64 __iomem *cregbase; + u64 *cntrs; + spinlock_t rcvmod_lock; /* protect rcvctrl shadow changes */ + spinlock_t gpio_lock; /* RMW of shadows/regs for ExtCtrl and GPIO */ + u64 main_int_mask; /* clear bits which have dedicated handlers */ + u64 int_enable_mask; /* for per port interrupts in single port mode */ + u64 errormask; + u64 hwerrmask; + u64 gpio_out; /* shadow of kr_gpio_out, for rmw ops */ + u64 gpio_mask; /* shadow the gpio mask register */ + u64 extctrl; /* shadow the gpio output enable, etc... */ + u32 ncntrs; + u32 nportcntrs; + u32 cntrnamelen; + u32 portcntrnamelen; + u32 numctxts; + u32 rcvegrcnt; + u32 updthresh; /* current AvailUpdThld */ + u32 updthresh_dflt; /* default AvailUpdThld */ + u32 r1; + u32 num_msix_entries; + u32 sdmabufcnt; + u32 lastbuf_for_pio; + u32 stay_in_freeze; + u32 recovery_ports_initted; +#ifdef CONFIG_INFINIBAND_QIB_DCA + u32 dca_ctrl; + int rhdr_cpu[18]; + int sdma_cpu[2]; + u64 dca_rcvhdr_ctrl[5]; /* B, C, D, E, F */ +#endif + struct qib_msix_entry *msix_entries; + unsigned long *sendchkenable; + unsigned long *sendgrhchk; + unsigned long *sendibchk; + u32 rcvavail_timeout[18]; + char emsgbuf[128]; /* for device error interrupt msg buffer */ +}; + +/* Table of entries in "human readable" form Tx Emphasis. */ +struct txdds_ent { + u8 amp; + u8 pre; + u8 main; + u8 post; +}; + +struct vendor_txdds_ent { + u8 oui[QSFP_VOUI_LEN]; + u8 *partnum; + struct txdds_ent sdr; + struct txdds_ent ddr; + struct txdds_ent qdr; +}; + +static void write_tx_serdes_param(struct qib_pportdata *, struct txdds_ent *); + +#define TXDDS_TABLE_SZ 16 /* number of entries per speed in onchip table */ +#define TXDDS_EXTRA_SZ 18 /* number of extra tx settings entries */ +#define TXDDS_MFG_SZ 2 /* number of mfg tx settings entries */ +#define SERDES_CHANS 4 /* yes, it's obvious, but one less magic number */ + +#define H1_FORCE_VAL 8 +#define H1_FORCE_QME 1 /* may be overridden via setup_txselect() */ +#define H1_FORCE_QMH 7 /* may be overridden via setup_txselect() */ + +/* The static and dynamic registers are paired, and the pairs indexed by spd */ +#define krp_static_adapt_dis(spd) (KREG_IBPORT_IDX(ADAPT_DISABLE_STATIC_SDR) \ + + ((spd) * 2)) + +#define QDR_DFE_DISABLE_DELAY 4000 /* msec after LINKUP */ +#define QDR_STATIC_ADAPT_DOWN 0xf0f0f0f0ULL /* link down, H1-H4 QDR adapts */ +#define QDR_STATIC_ADAPT_DOWN_R1 0ULL /* r1 link down, H1-H4 QDR adapts */ +#define QDR_STATIC_ADAPT_INIT 0xffffffffffULL /* up, disable H0,H1-8, LE */ +#define QDR_STATIC_ADAPT_INIT_R1 0xf0ffffffffULL /* r1 up, disable H0,H1-8 */ + +struct qib_chippport_specific { + u64 __iomem *kpregbase; + u64 __iomem *cpregbase; + u64 *portcntrs; + struct qib_pportdata *ppd; + wait_queue_head_t autoneg_wait; + struct delayed_work autoneg_work; + struct delayed_work ipg_work; + struct timer_list chase_timer; + /* + * these 5 fields are used to establish deltas for IB symbol + * errors and linkrecovery errors. They can be reported on + * some chips during link negotiation prior to INIT, and with + * DDR when faking DDR negotiations with non-IBTA switches. + * The chip counters are adjusted at driver unload if there is + * a non-zero delta. + */ + u64 ibdeltainprog; + u64 ibsymdelta; + u64 ibsymsnap; + u64 iblnkerrdelta; + u64 iblnkerrsnap; + u64 iblnkdownsnap; + u64 iblnkdowndelta; + u64 ibmalfdelta; + u64 ibmalfsnap; + u64 ibcctrl_a; /* krp_ibcctrl_a shadow */ + u64 ibcctrl_b; /* krp_ibcctrl_b shadow */ + unsigned long qdr_dfe_time; + unsigned long chase_end; + u32 autoneg_tries; + u32 recovery_init; + u32 qdr_dfe_on; + u32 qdr_reforce; + /* + * Per-bay per-channel rcv QMH H1 values and Tx values for QDR. + * entry zero is unused, to simplify indexing + */ + u8 h1_val; + u8 no_eep; /* txselect table index to use if no qsfp info */ + u8 ipg_tries; + u8 ibmalfusesnap; + struct qib_qsfp_data qsfp_data; + char epmsgbuf[192]; /* for port error interrupt msg buffer */ + char sdmamsgbuf[192]; /* for per-port sdma error messages */ +}; + +static struct { + const char *name; + irq_handler_t handler; + int lsb; + int port; /* 0 if not port-specific, else port # */ + int dca; +} irq_table[] = { + { "", qib_7322intr, -1, 0, 0 }, + { " (buf avail)", qib_7322bufavail, + SYM_LSB(IntStatus, SendBufAvail), 0, 0}, + { " (sdma 0)", sdma_intr, + SYM_LSB(IntStatus, SDmaInt_0), 1, 1 }, + { " (sdma 1)", sdma_intr, + SYM_LSB(IntStatus, SDmaInt_1), 2, 1 }, + { " (sdmaI 0)", sdma_idle_intr, + SYM_LSB(IntStatus, SDmaIdleInt_0), 1, 1}, + { " (sdmaI 1)", sdma_idle_intr, + SYM_LSB(IntStatus, SDmaIdleInt_1), 2, 1}, + { " (sdmaP 0)", sdma_progress_intr, + SYM_LSB(IntStatus, SDmaProgressInt_0), 1, 1 }, + { " (sdmaP 1)", sdma_progress_intr, + SYM_LSB(IntStatus, SDmaProgressInt_1), 2, 1 }, + { " (sdmaC 0)", sdma_cleanup_intr, + SYM_LSB(IntStatus, SDmaCleanupDone_0), 1, 0 }, + { " (sdmaC 1)", sdma_cleanup_intr, + SYM_LSB(IntStatus, SDmaCleanupDone_1), 2 , 0}, +}; + +#ifdef CONFIG_INFINIBAND_QIB_DCA + +static const struct dca_reg_map { + int shadow_inx; + int lsb; + u64 mask; + u16 regno; +} dca_rcvhdr_reg_map[] = { + { 0, SYM_LSB(DCACtrlB, RcvHdrq0DCAOPH), + ~SYM_MASK(DCACtrlB, RcvHdrq0DCAOPH) , KREG_IDX(DCACtrlB) }, + { 0, SYM_LSB(DCACtrlB, RcvHdrq1DCAOPH), + ~SYM_MASK(DCACtrlB, RcvHdrq1DCAOPH) , KREG_IDX(DCACtrlB) }, + { 0, SYM_LSB(DCACtrlB, RcvHdrq2DCAOPH), + ~SYM_MASK(DCACtrlB, RcvHdrq2DCAOPH) , KREG_IDX(DCACtrlB) }, + { 0, SYM_LSB(DCACtrlB, RcvHdrq3DCAOPH), + ~SYM_MASK(DCACtrlB, RcvHdrq3DCAOPH) , KREG_IDX(DCACtrlB) }, + { 1, SYM_LSB(DCACtrlC, RcvHdrq4DCAOPH), + ~SYM_MASK(DCACtrlC, RcvHdrq4DCAOPH) , KREG_IDX(DCACtrlC) }, + { 1, SYM_LSB(DCACtrlC, RcvHdrq5DCAOPH), + ~SYM_MASK(DCACtrlC, RcvHdrq5DCAOPH) , KREG_IDX(DCACtrlC) }, + { 1, SYM_LSB(DCACtrlC, RcvHdrq6DCAOPH), + ~SYM_MASK(DCACtrlC, RcvHdrq6DCAOPH) , KREG_IDX(DCACtrlC) }, + { 1, SYM_LSB(DCACtrlC, RcvHdrq7DCAOPH), + ~SYM_MASK(DCACtrlC, RcvHdrq7DCAOPH) , KREG_IDX(DCACtrlC) }, + { 2, SYM_LSB(DCACtrlD, RcvHdrq8DCAOPH), + ~SYM_MASK(DCACtrlD, RcvHdrq8DCAOPH) , KREG_IDX(DCACtrlD) }, + { 2, SYM_LSB(DCACtrlD, RcvHdrq9DCAOPH), + ~SYM_MASK(DCACtrlD, RcvHdrq9DCAOPH) , KREG_IDX(DCACtrlD) }, + { 2, SYM_LSB(DCACtrlD, RcvHdrq10DCAOPH), + ~SYM_MASK(DCACtrlD, RcvHdrq10DCAOPH) , KREG_IDX(DCACtrlD) }, + { 2, SYM_LSB(DCACtrlD, RcvHdrq11DCAOPH), + ~SYM_MASK(DCACtrlD, RcvHdrq11DCAOPH) , KREG_IDX(DCACtrlD) }, + { 3, SYM_LSB(DCACtrlE, RcvHdrq12DCAOPH), + ~SYM_MASK(DCACtrlE, RcvHdrq12DCAOPH) , KREG_IDX(DCACtrlE) }, + { 3, SYM_LSB(DCACtrlE, RcvHdrq13DCAOPH), + ~SYM_MASK(DCACtrlE, RcvHdrq13DCAOPH) , KREG_IDX(DCACtrlE) }, + { 3, SYM_LSB(DCACtrlE, RcvHdrq14DCAOPH), + ~SYM_MASK(DCACtrlE, RcvHdrq14DCAOPH) , KREG_IDX(DCACtrlE) }, + { 3, SYM_LSB(DCACtrlE, RcvHdrq15DCAOPH), + ~SYM_MASK(DCACtrlE, RcvHdrq15DCAOPH) , KREG_IDX(DCACtrlE) }, + { 4, SYM_LSB(DCACtrlF, RcvHdrq16DCAOPH), + ~SYM_MASK(DCACtrlF, RcvHdrq16DCAOPH) , KREG_IDX(DCACtrlF) }, + { 4, SYM_LSB(DCACtrlF, RcvHdrq17DCAOPH), + ~SYM_MASK(DCACtrlF, RcvHdrq17DCAOPH) , KREG_IDX(DCACtrlF) }, +}; +#endif + +/* ibcctrl bits */ +#define QLOGIC_IB_IBCC_LINKINITCMD_DISABLE 1 +/* cycle through TS1/TS2 till OK */ +#define QLOGIC_IB_IBCC_LINKINITCMD_POLL 2 +/* wait for TS1, then go on */ +#define QLOGIC_IB_IBCC_LINKINITCMD_SLEEP 3 +#define QLOGIC_IB_IBCC_LINKINITCMD_SHIFT 16 + +#define QLOGIC_IB_IBCC_LINKCMD_DOWN 1 /* move to 0x11 */ +#define QLOGIC_IB_IBCC_LINKCMD_ARMED 2 /* move to 0x21 */ +#define QLOGIC_IB_IBCC_LINKCMD_ACTIVE 3 /* move to 0x31 */ + +#define BLOB_7322_IBCHG 0x101 + +static inline void qib_write_kreg(const struct qib_devdata *dd, + const u32 regno, u64 value); +static inline u32 qib_read_kreg32(const struct qib_devdata *, const u32); +static void write_7322_initregs(struct qib_devdata *); +static void write_7322_init_portregs(struct qib_pportdata *); +static void setup_7322_link_recovery(struct qib_pportdata *, u32); +static void check_7322_rxe_status(struct qib_pportdata *); +static u32 __iomem *qib_7322_getsendbuf(struct qib_pportdata *, u64, u32 *); +#ifdef CONFIG_INFINIBAND_QIB_DCA +static void qib_setup_dca(struct qib_devdata *dd); +static void setup_dca_notifier(struct qib_devdata *dd, int msixnum); +static void reset_dca_notifier(struct qib_devdata *dd, int msixnum); +#endif + +/** + * qib_read_ureg32 - read 32-bit virtualized per-context register + * @dd: device + * @regno: register number + * @ctxt: context number + * + * Return the contents of a register that is virtualized to be per context. + * Returns -1 on errors (not distinguishable from valid contents at + * runtime; we may add a separate error variable at some point). + */ +static inline u32 qib_read_ureg32(const struct qib_devdata *dd, + enum qib_ureg regno, int ctxt) +{ + if (!dd->kregbase || !(dd->flags & QIB_PRESENT)) + return 0; + return readl(regno + (u64 __iomem *)( + (dd->ureg_align * ctxt) + (dd->userbase ? + (char __iomem *)dd->userbase : + (char __iomem *)dd->kregbase + dd->uregbase))); +} + +/** + * qib_write_ureg - write virtualized per-context register + * @dd: device + * @regno: register number + * @value: value + * @ctxt: context + * + * Write the contents of a register that is virtualized to be per context. + */ +static inline void qib_write_ureg(const struct qib_devdata *dd, + enum qib_ureg regno, u64 value, int ctxt) +{ + u64 __iomem *ubase; + + if (dd->userbase) + ubase = (u64 __iomem *) + ((char __iomem *) dd->userbase + + dd->ureg_align * ctxt); + else + ubase = (u64 __iomem *) + (dd->uregbase + + (char __iomem *) dd->kregbase + + dd->ureg_align * ctxt); + + if (dd->kregbase && (dd->flags & QIB_PRESENT)) + writeq(value, &ubase[regno]); +} + +static inline u32 qib_read_kreg32(const struct qib_devdata *dd, + const u32 regno) +{ + if (!dd->kregbase || !(dd->flags & QIB_PRESENT)) + return -1; + return readl((u32 __iomem *) &dd->kregbase[regno]); +} + +static inline u64 qib_read_kreg64(const struct qib_devdata *dd, + const u32 regno) +{ + if (!dd->kregbase || !(dd->flags & QIB_PRESENT)) + return -1; + return readq(&dd->kregbase[regno]); +} + +static inline void qib_write_kreg(const struct qib_devdata *dd, + const u32 regno, u64 value) +{ + if (dd->kregbase && (dd->flags & QIB_PRESENT)) + writeq(value, &dd->kregbase[regno]); +} + +/* + * not many sanity checks for the port-specific kernel register routines, + * since they are only used when it's known to be safe. +*/ +static inline u64 qib_read_kreg_port(const struct qib_pportdata *ppd, + const u16 regno) +{ + if (!ppd->cpspec->kpregbase || !(ppd->dd->flags & QIB_PRESENT)) + return 0ULL; + return readq(&ppd->cpspec->kpregbase[regno]); +} + +static inline void qib_write_kreg_port(const struct qib_pportdata *ppd, + const u16 regno, u64 value) +{ + if (ppd->cpspec && ppd->dd && ppd->cpspec->kpregbase && + (ppd->dd->flags & QIB_PRESENT)) + writeq(value, &ppd->cpspec->kpregbase[regno]); +} + +/** + * qib_write_kreg_ctxt - write a device's per-ctxt 64-bit kernel register + * @dd: the qlogic_ib device + * @regno: the register number to write + * @ctxt: the context containing the register + * @value: the value to write + */ +static inline void qib_write_kreg_ctxt(const struct qib_devdata *dd, + const u16 regno, unsigned ctxt, + u64 value) +{ + qib_write_kreg(dd, regno + ctxt, value); +} + +static inline u64 read_7322_creg(const struct qib_devdata *dd, u16 regno) +{ + if (!dd->cspec->cregbase || !(dd->flags & QIB_PRESENT)) + return 0; + return readq(&dd->cspec->cregbase[regno]); + + +} + +static inline u32 read_7322_creg32(const struct qib_devdata *dd, u16 regno) +{ + if (!dd->cspec->cregbase || !(dd->flags & QIB_PRESENT)) + return 0; + return readl(&dd->cspec->cregbase[regno]); + + +} + +static inline void write_7322_creg_port(const struct qib_pportdata *ppd, + u16 regno, u64 value) +{ + if (ppd->cpspec && ppd->cpspec->cpregbase && + (ppd->dd->flags & QIB_PRESENT)) + writeq(value, &ppd->cpspec->cpregbase[regno]); +} + +static inline u64 read_7322_creg_port(const struct qib_pportdata *ppd, + u16 regno) +{ + if (!ppd->cpspec || !ppd->cpspec->cpregbase || + !(ppd->dd->flags & QIB_PRESENT)) + return 0; + return readq(&ppd->cpspec->cpregbase[regno]); +} + +static inline u32 read_7322_creg32_port(const struct qib_pportdata *ppd, + u16 regno) +{ + if (!ppd->cpspec || !ppd->cpspec->cpregbase || + !(ppd->dd->flags & QIB_PRESENT)) + return 0; + return readl(&ppd->cpspec->cpregbase[regno]); +} + +/* bits in Control register */ +#define QLOGIC_IB_C_RESET SYM_MASK(Control, SyncReset) +#define QLOGIC_IB_C_SDMAFETCHPRIOEN SYM_MASK(Control, SDmaDescFetchPriorityEn) + +/* bits in general interrupt regs */ +#define QIB_I_RCVURG_LSB SYM_LSB(IntMask, RcvUrg0IntMask) +#define QIB_I_RCVURG_RMASK MASK_ACROSS(0, 17) +#define QIB_I_RCVURG_MASK (QIB_I_RCVURG_RMASK << QIB_I_RCVURG_LSB) +#define QIB_I_RCVAVAIL_LSB SYM_LSB(IntMask, RcvAvail0IntMask) +#define QIB_I_RCVAVAIL_RMASK MASK_ACROSS(0, 17) +#define QIB_I_RCVAVAIL_MASK (QIB_I_RCVAVAIL_RMASK << QIB_I_RCVAVAIL_LSB) +#define QIB_I_C_ERROR INT_MASK(Err) + +#define QIB_I_SPIOSENT (INT_MASK_P(SendDone, 0) | INT_MASK_P(SendDone, 1)) +#define QIB_I_SPIOBUFAVAIL INT_MASK(SendBufAvail) +#define QIB_I_GPIO INT_MASK(AssertGPIO) +#define QIB_I_P_SDMAINT(pidx) \ + (INT_MASK_P(SDma, pidx) | INT_MASK_P(SDmaIdle, pidx) | \ + INT_MASK_P(SDmaProgress, pidx) | \ + INT_MASK_PM(SDmaCleanupDone, pidx)) + +/* Interrupt bits that are "per port" */ +#define QIB_I_P_BITSEXTANT(pidx) \ + (INT_MASK_P(Err, pidx) | INT_MASK_P(SendDone, pidx) | \ + INT_MASK_P(SDma, pidx) | INT_MASK_P(SDmaIdle, pidx) | \ + INT_MASK_P(SDmaProgress, pidx) | \ + INT_MASK_PM(SDmaCleanupDone, pidx)) + +/* Interrupt bits that are common to a device */ +/* currently unused: QIB_I_SPIOSENT */ +#define QIB_I_C_BITSEXTANT \ + (QIB_I_RCVURG_MASK | QIB_I_RCVAVAIL_MASK | \ + QIB_I_SPIOSENT | \ + QIB_I_C_ERROR | QIB_I_SPIOBUFAVAIL | QIB_I_GPIO) + +#define QIB_I_BITSEXTANT (QIB_I_C_BITSEXTANT | \ + QIB_I_P_BITSEXTANT(0) | QIB_I_P_BITSEXTANT(1)) + +/* + * Error bits that are "per port". + */ +#define QIB_E_P_IBSTATUSCHANGED ERR_MASK_N(IBStatusChanged) +#define QIB_E_P_SHDR ERR_MASK_N(SHeadersErr) +#define QIB_E_P_VL15_BUF_MISUSE ERR_MASK_N(VL15BufMisuseErr) +#define QIB_E_P_SND_BUF_MISUSE ERR_MASK_N(SendBufMisuseErr) +#define QIB_E_P_SUNSUPVL ERR_MASK_N(SendUnsupportedVLErr) +#define QIB_E_P_SUNEXP_PKTNUM ERR_MASK_N(SendUnexpectedPktNumErr) +#define QIB_E_P_SDROP_DATA ERR_MASK_N(SendDroppedDataPktErr) +#define QIB_E_P_SDROP_SMP ERR_MASK_N(SendDroppedSmpPktErr) +#define QIB_E_P_SPKTLEN ERR_MASK_N(SendPktLenErr) +#define QIB_E_P_SUNDERRUN ERR_MASK_N(SendUnderRunErr) +#define QIB_E_P_SMAXPKTLEN ERR_MASK_N(SendMaxPktLenErr) +#define QIB_E_P_SMINPKTLEN ERR_MASK_N(SendMinPktLenErr) +#define QIB_E_P_RIBLOSTLINK ERR_MASK_N(RcvIBLostLinkErr) +#define QIB_E_P_RHDR ERR_MASK_N(RcvHdrErr) +#define QIB_E_P_RHDRLEN ERR_MASK_N(RcvHdrLenErr) +#define QIB_E_P_RBADTID ERR_MASK_N(RcvBadTidErr) +#define QIB_E_P_RBADVERSION ERR_MASK_N(RcvBadVersionErr) +#define QIB_E_P_RIBFLOW ERR_MASK_N(RcvIBFlowErr) +#define QIB_E_P_REBP ERR_MASK_N(RcvEBPErr) +#define QIB_E_P_RUNSUPVL ERR_MASK_N(RcvUnsupportedVLErr) +#define QIB_E_P_RUNEXPCHAR ERR_MASK_N(RcvUnexpectedCharErr) +#define QIB_E_P_RSHORTPKTLEN ERR_MASK_N(RcvShortPktLenErr) +#define QIB_E_P_RLONGPKTLEN ERR_MASK_N(RcvLongPktLenErr) +#define QIB_E_P_RMAXPKTLEN ERR_MASK_N(RcvMaxPktLenErr) +#define QIB_E_P_RMINPKTLEN ERR_MASK_N(RcvMinPktLenErr) +#define QIB_E_P_RICRC ERR_MASK_N(RcvICRCErr) +#define QIB_E_P_RVCRC ERR_MASK_N(RcvVCRCErr) +#define QIB_E_P_RFORMATERR ERR_MASK_N(RcvFormatErr) + +#define QIB_E_P_SDMA1STDESC ERR_MASK_N(SDma1stDescErr) +#define QIB_E_P_SDMABASE ERR_MASK_N(SDmaBaseErr) +#define QIB_E_P_SDMADESCADDRMISALIGN ERR_MASK_N(SDmaDescAddrMisalignErr) +#define QIB_E_P_SDMADWEN ERR_MASK_N(SDmaDwEnErr) +#define QIB_E_P_SDMAGENMISMATCH ERR_MASK_N(SDmaGenMismatchErr) +#define QIB_E_P_SDMAHALT ERR_MASK_N(SDmaHaltErr) +#define QIB_E_P_SDMAMISSINGDW ERR_MASK_N(SDmaMissingDwErr) +#define QIB_E_P_SDMAOUTOFBOUND ERR_MASK_N(SDmaOutOfBoundErr) +#define QIB_E_P_SDMARPYTAG ERR_MASK_N(SDmaRpyTagErr) +#define QIB_E_P_SDMATAILOUTOFBOUND ERR_MASK_N(SDmaTailOutOfBoundErr) +#define QIB_E_P_SDMAUNEXPDATA ERR_MASK_N(SDmaUnexpDataErr) + +/* Error bits that are common to a device */ +#define QIB_E_RESET ERR_MASK(ResetNegated) +#define QIB_E_HARDWARE ERR_MASK(HardwareErr) +#define QIB_E_INVALIDADDR ERR_MASK(InvalidAddrErr) + + +/* + * Per chip (rather than per-port) errors. Most either do + * nothing but trigger a print (because they self-recover, or + * always occur in tandem with other errors that handle the + * issue), or because they indicate errors with no recovery, + * but we want to know that they happened. + */ +#define QIB_E_SBUF_VL15_MISUSE ERR_MASK(SBufVL15MisUseErr) +#define QIB_E_BADEEP ERR_MASK(InvalidEEPCmd) +#define QIB_E_VLMISMATCH ERR_MASK(SendVLMismatchErr) +#define QIB_E_ARMLAUNCH ERR_MASK(SendArmLaunchErr) +#define QIB_E_SPCLTRIG ERR_MASK(SendSpecialTriggerErr) +#define QIB_E_RRCVHDRFULL ERR_MASK(RcvHdrFullErr) +#define QIB_E_RRCVEGRFULL ERR_MASK(RcvEgrFullErr) +#define QIB_E_RCVCTXTSHARE ERR_MASK(RcvContextShareErr) + +/* SDMA chip errors (not per port) + * QIB_E_SDMA_BUF_DUP needs no special handling, because we will also get + * the SDMAHALT error immediately, so we just print the dup error via the + * E_AUTO mechanism. This is true of most of the per-port fatal errors + * as well, but since this is port-independent, by definition, it's + * handled a bit differently. SDMA_VL15 and SDMA_WRONG_PORT are per + * packet send errors, and so are handled in the same manner as other + * per-packet errors. + */ +#define QIB_E_SDMA_VL15 ERR_MASK(SDmaVL15Err) +#define QIB_E_SDMA_WRONG_PORT ERR_MASK(SDmaWrongPortErr) +#define QIB_E_SDMA_BUF_DUP ERR_MASK(SDmaBufMaskDuplicateErr) + +/* + * Below functionally equivalent to legacy QLOGIC_IB_E_PKTERRS + * it is used to print "common" packet errors. + */ +#define QIB_E_P_PKTERRS (QIB_E_P_SPKTLEN |\ + QIB_E_P_SDROP_DATA | QIB_E_P_RVCRC |\ + QIB_E_P_RICRC | QIB_E_P_RSHORTPKTLEN |\ + QIB_E_P_VL15_BUF_MISUSE | QIB_E_P_SHDR | \ + QIB_E_P_REBP) + +/* Error Bits that Packet-related (Receive, per-port) */ +#define QIB_E_P_RPKTERRS (\ + QIB_E_P_RHDRLEN | QIB_E_P_RBADTID | \ + QIB_E_P_RBADVERSION | QIB_E_P_RHDR | \ + QIB_E_P_RLONGPKTLEN | QIB_E_P_RSHORTPKTLEN |\ + QIB_E_P_RMAXPKTLEN | QIB_E_P_RMINPKTLEN | \ + QIB_E_P_RFORMATERR | QIB_E_P_RUNSUPVL | \ + QIB_E_P_RUNEXPCHAR | QIB_E_P_RIBFLOW | QIB_E_P_REBP) + +/* + * Error bits that are Send-related (per port) + * (ARMLAUNCH excluded from E_SPKTERRS because it gets special handling). + * All of these potentially need to have a buffer disarmed + */ +#define QIB_E_P_SPKTERRS (\ + QIB_E_P_SUNEXP_PKTNUM |\ + QIB_E_P_SDROP_DATA | QIB_E_P_SDROP_SMP |\ + QIB_E_P_SMAXPKTLEN |\ + QIB_E_P_VL15_BUF_MISUSE | QIB_E_P_SHDR | \ + QIB_E_P_SMINPKTLEN | QIB_E_P_SPKTLEN | \ + QIB_E_P_SND_BUF_MISUSE | QIB_E_P_SUNSUPVL) + +#define QIB_E_SPKTERRS ( \ + QIB_E_SBUF_VL15_MISUSE | QIB_E_VLMISMATCH | \ + ERR_MASK_N(SendUnsupportedVLErr) | \ + QIB_E_SPCLTRIG | QIB_E_SDMA_VL15 | QIB_E_SDMA_WRONG_PORT) + +#define QIB_E_P_SDMAERRS ( \ + QIB_E_P_SDMAHALT | \ + QIB_E_P_SDMADESCADDRMISALIGN | \ + QIB_E_P_SDMAUNEXPDATA | \ + QIB_E_P_SDMAMISSINGDW | \ + QIB_E_P_SDMADWEN | \ + QIB_E_P_SDMARPYTAG | \ + QIB_E_P_SDMA1STDESC | \ + QIB_E_P_SDMABASE | \ + QIB_E_P_SDMATAILOUTOFBOUND | \ + QIB_E_P_SDMAOUTOFBOUND | \ + QIB_E_P_SDMAGENMISMATCH) + +/* + * This sets some bits more than once, but makes it more obvious which + * bits are not handled under other categories, and the repeat definition + * is not a problem. + */ +#define QIB_E_P_BITSEXTANT ( \ + QIB_E_P_SPKTERRS | QIB_E_P_PKTERRS | QIB_E_P_RPKTERRS | \ + QIB_E_P_RIBLOSTLINK | QIB_E_P_IBSTATUSCHANGED | \ + QIB_E_P_SND_BUF_MISUSE | QIB_E_P_SUNDERRUN | \ + QIB_E_P_SHDR | QIB_E_P_VL15_BUF_MISUSE | QIB_E_P_SDMAERRS \ + ) + +/* + * These are errors that can occur when the link + * changes state while a packet is being sent or received. This doesn't + * cover things like EBP or VCRC that can be the result of a sending + * having the link change state, so we receive a "known bad" packet. + * All of these are "per port", so renamed: + */ +#define QIB_E_P_LINK_PKTERRS (\ + QIB_E_P_SDROP_DATA | QIB_E_P_SDROP_SMP |\ + QIB_E_P_SMINPKTLEN | QIB_E_P_SPKTLEN |\ + QIB_E_P_RSHORTPKTLEN | QIB_E_P_RMINPKTLEN |\ + QIB_E_P_RUNEXPCHAR) + +/* + * This sets some bits more than once, but makes it more obvious which + * bits are not handled under other categories (such as QIB_E_SPKTERRS), + * and the repeat definition is not a problem. + */ +#define QIB_E_C_BITSEXTANT (\ + QIB_E_HARDWARE | QIB_E_INVALIDADDR | QIB_E_BADEEP |\ + QIB_E_ARMLAUNCH | QIB_E_VLMISMATCH | QIB_E_RRCVHDRFULL |\ + QIB_E_RRCVEGRFULL | QIB_E_RESET | QIB_E_SBUF_VL15_MISUSE) + +/* Likewise Neuter E_SPKT_ERRS_IGNORE */ +#define E_SPKT_ERRS_IGNORE 0 + +#define QIB_EXTS_MEMBIST_DISABLED \ + SYM_MASK(EXTStatus, MemBISTDisabled) +#define QIB_EXTS_MEMBIST_ENDTEST \ + SYM_MASK(EXTStatus, MemBISTEndTest) + +#define QIB_E_SPIOARMLAUNCH \ + ERR_MASK(SendArmLaunchErr) + +#define IBA7322_IBCC_LINKINITCMD_MASK SYM_RMASK(IBCCtrlA_0, LinkInitCmd) +#define IBA7322_IBCC_LINKCMD_SHIFT SYM_LSB(IBCCtrlA_0, LinkCmd) + +/* + * IBTA_1_2 is set when multiple speeds are enabled (normal), + * and also if forced QDR (only QDR enabled). It's enabled for the + * forced QDR case so that scrambling will be enabled by the TS3 + * exchange, when supported by both sides of the link. + */ +#define IBA7322_IBC_IBTA_1_2_MASK SYM_MASK(IBCCtrlB_0, IB_ENHANCED_MODE) +#define IBA7322_IBC_MAX_SPEED_MASK SYM_MASK(IBCCtrlB_0, SD_SPEED) +#define IBA7322_IBC_SPEED_QDR SYM_MASK(IBCCtrlB_0, SD_SPEED_QDR) +#define IBA7322_IBC_SPEED_DDR SYM_MASK(IBCCtrlB_0, SD_SPEED_DDR) +#define IBA7322_IBC_SPEED_SDR SYM_MASK(IBCCtrlB_0, SD_SPEED_SDR) +#define IBA7322_IBC_SPEED_MASK (SYM_MASK(IBCCtrlB_0, SD_SPEED_SDR) | \ + SYM_MASK(IBCCtrlB_0, SD_SPEED_DDR) | SYM_MASK(IBCCtrlB_0, SD_SPEED_QDR)) +#define IBA7322_IBC_SPEED_LSB SYM_LSB(IBCCtrlB_0, SD_SPEED_SDR) + +#define IBA7322_LEDBLINK_OFF_SHIFT SYM_LSB(RcvPktLEDCnt_0, OFFperiod) +#define IBA7322_LEDBLINK_ON_SHIFT SYM_LSB(RcvPktLEDCnt_0, ONperiod) + +#define IBA7322_IBC_WIDTH_AUTONEG SYM_MASK(IBCCtrlB_0, IB_NUM_CHANNELS) +#define IBA7322_IBC_WIDTH_4X_ONLY (1<<SYM_LSB(IBCCtrlB_0, IB_NUM_CHANNELS)) +#define IBA7322_IBC_WIDTH_1X_ONLY (0<<SYM_LSB(IBCCtrlB_0, IB_NUM_CHANNELS)) + +#define IBA7322_IBC_RXPOL_MASK SYM_MASK(IBCCtrlB_0, IB_POLARITY_REV_SUPP) +#define IBA7322_IBC_RXPOL_LSB SYM_LSB(IBCCtrlB_0, IB_POLARITY_REV_SUPP) +#define IBA7322_IBC_HRTBT_MASK (SYM_MASK(IBCCtrlB_0, HRTBT_AUTO) | \ + SYM_MASK(IBCCtrlB_0, HRTBT_ENB)) +#define IBA7322_IBC_HRTBT_RMASK (IBA7322_IBC_HRTBT_MASK >> \ + SYM_LSB(IBCCtrlB_0, HRTBT_ENB)) +#define IBA7322_IBC_HRTBT_LSB SYM_LSB(IBCCtrlB_0, HRTBT_ENB) + +#define IBA7322_REDIRECT_VEC_PER_REG 12 + +#define IBA7322_SENDCHK_PKEY SYM_MASK(SendCheckControl_0, PKey_En) +#define IBA7322_SENDCHK_BTHQP SYM_MASK(SendCheckControl_0, BTHQP_En) +#define IBA7322_SENDCHK_SLID SYM_MASK(SendCheckControl_0, SLID_En) +#define IBA7322_SENDCHK_RAW_IPV6 SYM_MASK(SendCheckControl_0, RawIPV6_En) +#define IBA7322_SENDCHK_MINSZ SYM_MASK(SendCheckControl_0, PacketTooSmall_En) + +#define AUTONEG_TRIES 3 /* sequential retries to negotiate DDR */ + +#define HWE_AUTO(fldname) { .mask = SYM_MASK(HwErrMask, fldname##Mask), \ + .msg = #fldname , .sz = sizeof(#fldname) } +#define HWE_AUTO_P(fldname, port) { .mask = SYM_MASK(HwErrMask, \ + fldname##Mask##_##port), .msg = #fldname , .sz = sizeof(#fldname) } +static const struct qib_hwerror_msgs qib_7322_hwerror_msgs[] = { + HWE_AUTO_P(IBSerdesPClkNotDetect, 1), + HWE_AUTO_P(IBSerdesPClkNotDetect, 0), + HWE_AUTO(PCIESerdesPClkNotDetect), + HWE_AUTO(PowerOnBISTFailed), + HWE_AUTO(TempsenseTholdReached), + HWE_AUTO(MemoryErr), + HWE_AUTO(PCIeBusParityErr), + HWE_AUTO(PcieCplTimeout), + HWE_AUTO(PciePoisonedTLP), + HWE_AUTO_P(SDmaMemReadErr, 1), + HWE_AUTO_P(SDmaMemReadErr, 0), + HWE_AUTO_P(IBCBusFromSPCParityErr, 1), + HWE_AUTO_P(IBCBusToSPCParityErr, 1), + HWE_AUTO_P(IBCBusFromSPCParityErr, 0), + HWE_AUTO(statusValidNoEop), + HWE_AUTO(LATriggered), + { .mask = 0, .sz = 0 } +}; + +#define E_AUTO(fldname) { .mask = SYM_MASK(ErrMask, fldname##Mask), \ + .msg = #fldname, .sz = sizeof(#fldname) } +#define E_P_AUTO(fldname) { .mask = SYM_MASK(ErrMask_0, fldname##Mask), \ + .msg = #fldname, .sz = sizeof(#fldname) } +static const struct qib_hwerror_msgs qib_7322error_msgs[] = { + E_AUTO(RcvEgrFullErr), + E_AUTO(RcvHdrFullErr), + E_AUTO(ResetNegated), + E_AUTO(HardwareErr), + E_AUTO(InvalidAddrErr), + E_AUTO(SDmaVL15Err), + E_AUTO(SBufVL15MisUseErr), + E_AUTO(InvalidEEPCmd), + E_AUTO(RcvContextShareErr), + E_AUTO(SendVLMismatchErr), + E_AUTO(SendArmLaunchErr), + E_AUTO(SendSpecialTriggerErr), + E_AUTO(SDmaWrongPortErr), + E_AUTO(SDmaBufMaskDuplicateErr), + { .mask = 0, .sz = 0 } +}; + +static const struct qib_hwerror_msgs qib_7322p_error_msgs[] = { + E_P_AUTO(IBStatusChanged), + E_P_AUTO(SHeadersErr), + E_P_AUTO(VL15BufMisuseErr), + /* + * SDmaHaltErr is not really an error, make it clearer; + */ + {.mask = SYM_MASK(ErrMask_0, SDmaHaltErrMask), .msg = "SDmaHalted", + .sz = 11}, + E_P_AUTO(SDmaDescAddrMisalignErr), + E_P_AUTO(SDmaUnexpDataErr), + E_P_AUTO(SDmaMissingDwErr), + E_P_AUTO(SDmaDwEnErr), + E_P_AUTO(SDmaRpyTagErr), + E_P_AUTO(SDma1stDescErr), + E_P_AUTO(SDmaBaseErr), + E_P_AUTO(SDmaTailOutOfBoundErr), + E_P_AUTO(SDmaOutOfBoundErr), + E_P_AUTO(SDmaGenMismatchErr), + E_P_AUTO(SendBufMisuseErr), + E_P_AUTO(SendUnsupportedVLErr), + E_P_AUTO(SendUnexpectedPktNumErr), + E_P_AUTO(SendDroppedDataPktErr), + E_P_AUTO(SendDroppedSmpPktErr), + E_P_AUTO(SendPktLenErr), + E_P_AUTO(SendUnderRunErr), + E_P_AUTO(SendMaxPktLenErr), + E_P_AUTO(SendMinPktLenErr), + E_P_AUTO(RcvIBLostLinkErr), + E_P_AUTO(RcvHdrErr), + E_P_AUTO(RcvHdrLenErr), + E_P_AUTO(RcvBadTidErr), + E_P_AUTO(RcvBadVersionErr), + E_P_AUTO(RcvIBFlowErr), + E_P_AUTO(RcvEBPErr), + E_P_AUTO(RcvUnsupportedVLErr), + E_P_AUTO(RcvUnexpectedCharErr), + E_P_AUTO(RcvShortPktLenErr), + E_P_AUTO(RcvLongPktLenErr), + E_P_AUTO(RcvMaxPktLenErr), + E_P_AUTO(RcvMinPktLenErr), + E_P_AUTO(RcvICRCErr), + E_P_AUTO(RcvVCRCErr), + E_P_AUTO(RcvFormatErr), + { .mask = 0, .sz = 0 } +}; + +/* + * Below generates "auto-message" for interrupts not specific to any port or + * context + */ +#define INTR_AUTO(fldname) { .mask = SYM_MASK(IntMask, fldname##Mask), \ + .msg = #fldname, .sz = sizeof(#fldname) } +/* Below generates "auto-message" for interrupts specific to a port */ +#define INTR_AUTO_P(fldname) { .mask = MASK_ACROSS(\ + SYM_LSB(IntMask, fldname##Mask##_0), \ + SYM_LSB(IntMask, fldname##Mask##_1)), \ + .msg = #fldname "_P", .sz = sizeof(#fldname "_P") } +/* For some reason, the SerDesTrimDone bits are reversed */ +#define INTR_AUTO_PI(fldname) { .mask = MASK_ACROSS(\ + SYM_LSB(IntMask, fldname##Mask##_1), \ + SYM_LSB(IntMask, fldname##Mask##_0)), \ + .msg = #fldname "_P", .sz = sizeof(#fldname "_P") } +/* + * Below generates "auto-message" for interrupts specific to a context, + * with ctxt-number appended + */ +#define INTR_AUTO_C(fldname) { .mask = MASK_ACROSS(\ + SYM_LSB(IntMask, fldname##0IntMask), \ + SYM_LSB(IntMask, fldname##17IntMask)), \ + .msg = #fldname "_C", .sz = sizeof(#fldname "_C") } + +#define TXSYMPTOM_AUTO_P(fldname) \ + { .mask = SYM_MASK(SendHdrErrSymptom_0, fldname), \ + .msg = #fldname, .sz = sizeof(#fldname) } +static const struct qib_hwerror_msgs hdrchk_msgs[] = { + TXSYMPTOM_AUTO_P(NonKeyPacket), + TXSYMPTOM_AUTO_P(GRHFail), + TXSYMPTOM_AUTO_P(PkeyFail), + TXSYMPTOM_AUTO_P(QPFail), + TXSYMPTOM_AUTO_P(SLIDFail), + TXSYMPTOM_AUTO_P(RawIPV6), + TXSYMPTOM_AUTO_P(PacketTooSmall), + { .mask = 0, .sz = 0 } +}; + +#define IBA7322_HDRHEAD_PKTINT_SHIFT 32 /* interrupt cnt in upper 32 bits */ + +/* + * Called when we might have an error that is specific to a particular + * PIO buffer, and may need to cancel that buffer, so it can be re-used, + * because we don't need to force the update of pioavail + */ +static void qib_disarm_7322_senderrbufs(struct qib_pportdata *ppd) +{ + struct qib_devdata *dd = ppd->dd; + u32 i; + int any; + u32 piobcnt = dd->piobcnt2k + dd->piobcnt4k + NUM_VL15_BUFS; + u32 regcnt = (piobcnt + BITS_PER_LONG - 1) / BITS_PER_LONG; + unsigned long sbuf[4]; + + /* + * It's possible that sendbuffererror could have bits set; might + * have already done this as a result of hardware error handling. + */ + any = 0; + for (i = 0; i < regcnt; ++i) { + sbuf[i] = qib_read_kreg64(dd, kr_sendbuffererror + i); + if (sbuf[i]) { + any = 1; + qib_write_kreg(dd, kr_sendbuffererror + i, sbuf[i]); + } + } + + if (any) + qib_disarm_piobufs_set(dd, sbuf, piobcnt); +} + +/* No txe_recover yet, if ever */ + +/* No decode__errors yet */ +static void err_decode(char *msg, size_t len, u64 errs, + const struct qib_hwerror_msgs *msp) +{ + u64 these, lmask; + int took, multi, n = 0; + + while (errs && msp && msp->mask) { + multi = (msp->mask & (msp->mask - 1)); + while (errs & msp->mask) { + these = (errs & msp->mask); + lmask = (these & (these - 1)) ^ these; + if (len) { + if (n++) { + /* separate the strings */ + *msg++ = ','; + len--; + } + /* msp->sz counts the nul */ + took = min_t(size_t, msp->sz - (size_t)1, len); + memcpy(msg, msp->msg, took); + len -= took; + msg += took; + if (len) + *msg = '\0'; + } + errs &= ~lmask; + if (len && multi) { + /* More than one bit this mask */ + int idx = -1; + + while (lmask & msp->mask) { + ++idx; + lmask >>= 1; + } + took = scnprintf(msg, len, "_%d", idx); + len -= took; + msg += took; + } + } + ++msp; + } + /* If some bits are left, show in hex. */ + if (len && errs) + snprintf(msg, len, "%sMORE:%llX", n ? "," : "", + (unsigned long long) errs); +} + +/* only called if r1 set */ +static void flush_fifo(struct qib_pportdata *ppd) +{ + struct qib_devdata *dd = ppd->dd; + u32 __iomem *piobuf; + u32 bufn; + u32 *hdr; + u64 pbc; + const unsigned hdrwords = 7; + static struct ib_header ibhdr = { + .lrh[0] = cpu_to_be16(0xF000 | QIB_LRH_BTH), + .lrh[1] = IB_LID_PERMISSIVE, + .lrh[2] = cpu_to_be16(hdrwords + SIZE_OF_CRC), + .lrh[3] = IB_LID_PERMISSIVE, + .u.oth.bth[0] = cpu_to_be32( + (IB_OPCODE_UD_SEND_ONLY << 24) | QIB_DEFAULT_P_KEY), + .u.oth.bth[1] = cpu_to_be32(0), + .u.oth.bth[2] = cpu_to_be32(0), + .u.oth.u.ud.deth[0] = cpu_to_be32(0), + .u.oth.u.ud.deth[1] = cpu_to_be32(0), + }; + + /* + * Send a dummy VL15 packet to flush the launch FIFO. + * This will not actually be sent since the TxeBypassIbc bit is set. + */ + pbc = PBC_7322_VL15_SEND | + (((u64)ppd->hw_pidx) << (PBC_PORT_SEL_LSB + 32)) | + (hdrwords + SIZE_OF_CRC); + piobuf = qib_7322_getsendbuf(ppd, pbc, &bufn); + if (!piobuf) + return; + writeq(pbc, piobuf); + hdr = (u32 *) &ibhdr; + if (dd->flags & QIB_PIO_FLUSH_WC) { + qib_flush_wc(); + qib_pio_copy(piobuf + 2, hdr, hdrwords - 1); + qib_flush_wc(); + __raw_writel(hdr[hdrwords - 1], piobuf + hdrwords + 1); + qib_flush_wc(); + } else + qib_pio_copy(piobuf + 2, hdr, hdrwords); + qib_sendbuf_done(dd, bufn); +} + +/* + * This is called with interrupts disabled and sdma_lock held. + */ +static void qib_7322_sdma_sendctrl(struct qib_pportdata *ppd, unsigned op) +{ + struct qib_devdata *dd = ppd->dd; + u64 set_sendctrl = 0; + u64 clr_sendctrl = 0; + + if (op & QIB_SDMA_SENDCTRL_OP_ENABLE) + set_sendctrl |= SYM_MASK(SendCtrl_0, SDmaEnable); + else + clr_sendctrl |= SYM_MASK(SendCtrl_0, SDmaEnable); + + if (op & QIB_SDMA_SENDCTRL_OP_INTENABLE) + set_sendctrl |= SYM_MASK(SendCtrl_0, SDmaIntEnable); + else + clr_sendctrl |= SYM_MASK(SendCtrl_0, SDmaIntEnable); + + if (op & QIB_SDMA_SENDCTRL_OP_HALT) + set_sendctrl |= SYM_MASK(SendCtrl_0, SDmaHalt); + else + clr_sendctrl |= SYM_MASK(SendCtrl_0, SDmaHalt); + + if (op & QIB_SDMA_SENDCTRL_OP_DRAIN) + set_sendctrl |= SYM_MASK(SendCtrl_0, TxeBypassIbc) | + SYM_MASK(SendCtrl_0, TxeAbortIbc) | + SYM_MASK(SendCtrl_0, TxeDrainRmFifo); + else + clr_sendctrl |= SYM_MASK(SendCtrl_0, TxeBypassIbc) | + SYM_MASK(SendCtrl_0, TxeAbortIbc) | + SYM_MASK(SendCtrl_0, TxeDrainRmFifo); + + spin_lock(&dd->sendctrl_lock); + + /* If we are draining everything, block sends first */ + if (op & QIB_SDMA_SENDCTRL_OP_DRAIN) { + ppd->p_sendctrl &= ~SYM_MASK(SendCtrl_0, SendEnable); + qib_write_kreg_port(ppd, krp_sendctrl, ppd->p_sendctrl); + qib_write_kreg(dd, kr_scratch, 0); + } + + ppd->p_sendctrl |= set_sendctrl; + ppd->p_sendctrl &= ~clr_sendctrl; + + if (op & QIB_SDMA_SENDCTRL_OP_CLEANUP) + qib_write_kreg_port(ppd, krp_sendctrl, + ppd->p_sendctrl | + SYM_MASK(SendCtrl_0, SDmaCleanup)); + else + qib_write_kreg_port(ppd, krp_sendctrl, ppd->p_sendctrl); + qib_write_kreg(dd, kr_scratch, 0); + + if (op & QIB_SDMA_SENDCTRL_OP_DRAIN) { + ppd->p_sendctrl |= SYM_MASK(SendCtrl_0, SendEnable); + qib_write_kreg_port(ppd, krp_sendctrl, ppd->p_sendctrl); + qib_write_kreg(dd, kr_scratch, 0); + } + + spin_unlock(&dd->sendctrl_lock); + + if ((op & QIB_SDMA_SENDCTRL_OP_DRAIN) && ppd->dd->cspec->r1) + flush_fifo(ppd); +} + +static void qib_7322_sdma_hw_clean_up(struct qib_pportdata *ppd) +{ + __qib_sdma_process_event(ppd, qib_sdma_event_e50_hw_cleaned); +} + +static void qib_sdma_7322_setlengen(struct qib_pportdata *ppd) +{ + /* + * Set SendDmaLenGen and clear and set + * the MSB of the generation count to enable generation checking + * and load the internal generation counter. + */ + qib_write_kreg_port(ppd, krp_senddmalengen, ppd->sdma_descq_cnt); + qib_write_kreg_port(ppd, krp_senddmalengen, + ppd->sdma_descq_cnt | + (1ULL << QIB_7322_SendDmaLenGen_0_Generation_MSB)); +} + +/* + * Must be called with sdma_lock held, or before init finished. + */ +static void qib_sdma_update_7322_tail(struct qib_pportdata *ppd, u16 tail) +{ + /* Commit writes to memory and advance the tail on the chip */ + wmb(); + ppd->sdma_descq_tail = tail; + qib_write_kreg_port(ppd, krp_senddmatail, tail); +} + +/* + * This is called with interrupts disabled and sdma_lock held. + */ +static void qib_7322_sdma_hw_start_up(struct qib_pportdata *ppd) +{ + /* + * Drain all FIFOs. + * The hardware doesn't require this but we do it so that verbs + * and user applications don't wait for link active to send stale + * data. + */ + sendctrl_7322_mod(ppd, QIB_SENDCTRL_FLUSH); + + qib_sdma_7322_setlengen(ppd); + qib_sdma_update_7322_tail(ppd, 0); /* Set SendDmaTail */ + ppd->sdma_head_dma[0] = 0; + qib_7322_sdma_sendctrl(ppd, + ppd->sdma_state.current_op | QIB_SDMA_SENDCTRL_OP_CLEANUP); +} + +#define DISABLES_SDMA ( \ + QIB_E_P_SDMAHALT | \ + QIB_E_P_SDMADESCADDRMISALIGN | \ + QIB_E_P_SDMAMISSINGDW | \ + QIB_E_P_SDMADWEN | \ + QIB_E_P_SDMARPYTAG | \ + QIB_E_P_SDMA1STDESC | \ + QIB_E_P_SDMABASE | \ + QIB_E_P_SDMATAILOUTOFBOUND | \ + QIB_E_P_SDMAOUTOFBOUND | \ + QIB_E_P_SDMAGENMISMATCH) + +static void sdma_7322_p_errors(struct qib_pportdata *ppd, u64 errs) +{ + unsigned long flags; + struct qib_devdata *dd = ppd->dd; + + errs &= QIB_E_P_SDMAERRS; + err_decode(ppd->cpspec->sdmamsgbuf, sizeof(ppd->cpspec->sdmamsgbuf), + errs, qib_7322p_error_msgs); + + if (errs & QIB_E_P_SDMAUNEXPDATA) + qib_dev_err(dd, "IB%u:%u SDmaUnexpData\n", dd->unit, + ppd->port); + + spin_lock_irqsave(&ppd->sdma_lock, flags); + + if (errs != QIB_E_P_SDMAHALT) { + /* SDMA errors have QIB_E_P_SDMAHALT and another bit set */ + qib_dev_porterr(dd, ppd->port, + "SDMA %s 0x%016llx %s\n", + qib_sdma_state_names[ppd->sdma_state.current_state], + errs, ppd->cpspec->sdmamsgbuf); + dump_sdma_7322_state(ppd); + } + + switch (ppd->sdma_state.current_state) { + case qib_sdma_state_s00_hw_down: + break; + + case qib_sdma_state_s10_hw_start_up_wait: + if (errs & QIB_E_P_SDMAHALT) + __qib_sdma_process_event(ppd, + qib_sdma_event_e20_hw_started); + break; + + case qib_sdma_state_s20_idle: + break; + + case qib_sdma_state_s30_sw_clean_up_wait: + break; + + case qib_sdma_state_s40_hw_clean_up_wait: + if (errs & QIB_E_P_SDMAHALT) + __qib_sdma_process_event(ppd, + qib_sdma_event_e50_hw_cleaned); + break; + + case qib_sdma_state_s50_hw_halt_wait: + if (errs & QIB_E_P_SDMAHALT) + __qib_sdma_process_event(ppd, + qib_sdma_event_e60_hw_halted); + break; + + case qib_sdma_state_s99_running: + __qib_sdma_process_event(ppd, qib_sdma_event_e7322_err_halted); + __qib_sdma_process_event(ppd, qib_sdma_event_e60_hw_halted); + break; + } + + spin_unlock_irqrestore(&ppd->sdma_lock, flags); +} + +/* + * handle per-device errors (not per-port errors) + */ +static noinline void handle_7322_errors(struct qib_devdata *dd) +{ + char *msg; + u64 iserr = 0; + u64 errs; + u64 mask; + + qib_stats.sps_errints++; + errs = qib_read_kreg64(dd, kr_errstatus); + if (!errs) { + qib_devinfo(dd->pcidev, + "device error interrupt, but no error bits set!\n"); + goto done; + } + + /* don't report errors that are masked */ + errs &= dd->cspec->errormask; + msg = dd->cspec->emsgbuf; + + /* do these first, they are most important */ + if (errs & QIB_E_HARDWARE) { + *msg = '\0'; + qib_7322_handle_hwerrors(dd, msg, sizeof(dd->cspec->emsgbuf)); + } + + if (errs & QIB_E_SPKTERRS) { + qib_disarm_7322_senderrbufs(dd->pport); + qib_stats.sps_txerrs++; + } else if (errs & QIB_E_INVALIDADDR) + qib_stats.sps_txerrs++; + else if (errs & QIB_E_ARMLAUNCH) { + qib_stats.sps_txerrs++; + qib_disarm_7322_senderrbufs(dd->pport); + } + qib_write_kreg(dd, kr_errclear, errs); + + /* + * The ones we mask off are handled specially below + * or above. Also mask SDMADISABLED by default as it + * is too chatty. + */ + mask = QIB_E_HARDWARE; + *msg = '\0'; + + err_decode(msg, sizeof(dd->cspec->emsgbuf), errs & ~mask, + qib_7322error_msgs); + + /* + * Getting reset is a tragedy for all ports. Mark the device + * _and_ the ports as "offline" in way meaningful to each. + */ + if (errs & QIB_E_RESET) { + int pidx; + + qib_dev_err(dd, + "Got reset, requires re-init (unload and reload driver)\n"); + dd->flags &= ~QIB_INITTED; /* needs re-init */ + /* mark as having had error */ + *dd->devstatusp |= QIB_STATUS_HWERROR; + for (pidx = 0; pidx < dd->num_pports; ++pidx) + if (dd->pport[pidx].link_speed_supported) + *dd->pport[pidx].statusp &= ~QIB_STATUS_IB_CONF; + } + + if (*msg && iserr) + qib_dev_err(dd, "%s error\n", msg); + + /* + * If there were hdrq or egrfull errors, wake up any processes + * waiting in poll. We used to try to check which contexts had + * the overflow, but given the cost of that and the chip reads + * to support it, it's better to just wake everybody up if we + * get an overflow; waiters can poll again if it's not them. + */ + if (errs & (ERR_MASK(RcvEgrFullErr) | ERR_MASK(RcvHdrFullErr))) { + qib_handle_urcv(dd, ~0U); + if (errs & ERR_MASK(RcvEgrFullErr)) + qib_stats.sps_buffull++; + else + qib_stats.sps_hdrfull++; + } + +done: + return; +} + +static void qib_error_tasklet(struct tasklet_struct *t) +{ + struct qib_devdata *dd = from_tasklet(dd, t, error_tasklet); + + handle_7322_errors(dd); + qib_write_kreg(dd, kr_errmask, dd->cspec->errormask); +} + +static void reenable_chase(struct timer_list *t) +{ + struct qib_chippport_specific *cp = from_timer(cp, t, chase_timer); + struct qib_pportdata *ppd = cp->ppd; + + ppd->cpspec->chase_timer.expires = 0; + qib_set_ib_7322_lstate(ppd, QLOGIC_IB_IBCC_LINKCMD_DOWN, + QLOGIC_IB_IBCC_LINKINITCMD_POLL); +} + +static void disable_chase(struct qib_pportdata *ppd, unsigned long tnow, + u8 ibclt) +{ + ppd->cpspec->chase_end = 0; + + if (!qib_chase) + return; + + qib_set_ib_7322_lstate(ppd, QLOGIC_IB_IBCC_LINKCMD_DOWN, + QLOGIC_IB_IBCC_LINKINITCMD_DISABLE); + ppd->cpspec->chase_timer.expires = jiffies + QIB_CHASE_DIS_TIME; + add_timer(&ppd->cpspec->chase_timer); +} + +static void handle_serdes_issues(struct qib_pportdata *ppd, u64 ibcst) +{ + u8 ibclt; + unsigned long tnow; + + ibclt = (u8)SYM_FIELD(ibcst, IBCStatusA_0, LinkTrainingState); + + /* + * Detect and handle the state chase issue, where we can + * get stuck if we are unlucky on timing on both sides of + * the link. If we are, we disable, set a timer, and + * then re-enable. + */ + switch (ibclt) { + case IB_7322_LT_STATE_CFGRCVFCFG: + case IB_7322_LT_STATE_CFGWAITRMT: + case IB_7322_LT_STATE_TXREVLANES: + case IB_7322_LT_STATE_CFGENH: + tnow = jiffies; + if (ppd->cpspec->chase_end && + time_after(tnow, ppd->cpspec->chase_end)) + disable_chase(ppd, tnow, ibclt); + else if (!ppd->cpspec->chase_end) + ppd->cpspec->chase_end = tnow + QIB_CHASE_TIME; + break; + default: + ppd->cpspec->chase_end = 0; + break; + } + + if (((ibclt >= IB_7322_LT_STATE_CFGTEST && + ibclt <= IB_7322_LT_STATE_CFGWAITENH) || + ibclt == IB_7322_LT_STATE_LINKUP) && + (ibcst & SYM_MASK(IBCStatusA_0, LinkSpeedQDR))) { + force_h1(ppd); + ppd->cpspec->qdr_reforce = 1; + if (!ppd->dd->cspec->r1) + serdes_7322_los_enable(ppd, 0); + } else if (ppd->cpspec->qdr_reforce && + (ibcst & SYM_MASK(IBCStatusA_0, LinkSpeedQDR)) && + (ibclt == IB_7322_LT_STATE_CFGENH || + ibclt == IB_7322_LT_STATE_CFGIDLE || + ibclt == IB_7322_LT_STATE_LINKUP)) + force_h1(ppd); + + if ((IS_QMH(ppd->dd) || IS_QME(ppd->dd)) && + ppd->link_speed_enabled == QIB_IB_QDR && + (ibclt == IB_7322_LT_STATE_CFGTEST || + ibclt == IB_7322_LT_STATE_CFGENH || + (ibclt >= IB_7322_LT_STATE_POLLACTIVE && + ibclt <= IB_7322_LT_STATE_SLEEPQUIET))) + adj_tx_serdes(ppd); + + if (ibclt != IB_7322_LT_STATE_LINKUP) { + u8 ltstate = qib_7322_phys_portstate(ibcst); + u8 pibclt = (u8)SYM_FIELD(ppd->lastibcstat, IBCStatusA_0, + LinkTrainingState); + if (!ppd->dd->cspec->r1 && + pibclt == IB_7322_LT_STATE_LINKUP && + ltstate != IB_PHYSPORTSTATE_LINK_ERR_RECOVER && + ltstate != IB_PHYSPORTSTATE_RECOVERY_RETRAIN && + ltstate != IB_PHYSPORTSTATE_RECOVERY_WAITRMT && + ltstate != IB_PHYSPORTSTATE_RECOVERY_IDLE) + /* If the link went down (but no into recovery, + * turn LOS back on */ + serdes_7322_los_enable(ppd, 1); + if (!ppd->cpspec->qdr_dfe_on && + ibclt <= IB_7322_LT_STATE_SLEEPQUIET) { + ppd->cpspec->qdr_dfe_on = 1; + ppd->cpspec->qdr_dfe_time = 0; + /* On link down, reenable QDR adaptation */ + qib_write_kreg_port(ppd, krp_static_adapt_dis(2), + ppd->dd->cspec->r1 ? + QDR_STATIC_ADAPT_DOWN_R1 : + QDR_STATIC_ADAPT_DOWN); + pr_info( + "IB%u:%u re-enabled QDR adaptation ibclt %x\n", + ppd->dd->unit, ppd->port, ibclt); + } + } +} + +static int qib_7322_set_ib_cfg(struct qib_pportdata *, int, u32); + +/* + * This is per-pport error handling. + * will likely get it's own MSIx interrupt (one for each port, + * although just a single handler). + */ +static noinline void handle_7322_p_errors(struct qib_pportdata *ppd) +{ + char *msg; + u64 ignore_this_time = 0, iserr = 0, errs, fmask; + struct qib_devdata *dd = ppd->dd; + + /* do this as soon as possible */ + fmask = qib_read_kreg64(dd, kr_act_fmask); + if (!fmask) + check_7322_rxe_status(ppd); + + errs = qib_read_kreg_port(ppd, krp_errstatus); + if (!errs) + qib_devinfo(dd->pcidev, + "Port%d error interrupt, but no error bits set!\n", + ppd->port); + if (!fmask) + errs &= ~QIB_E_P_IBSTATUSCHANGED; + if (!errs) + goto done; + + msg = ppd->cpspec->epmsgbuf; + *msg = '\0'; + + if (errs & ~QIB_E_P_BITSEXTANT) { + err_decode(msg, sizeof(ppd->cpspec->epmsgbuf), + errs & ~QIB_E_P_BITSEXTANT, qib_7322p_error_msgs); + if (!*msg) + snprintf(msg, sizeof(ppd->cpspec->epmsgbuf), + "no others"); + qib_dev_porterr(dd, ppd->port, + "error interrupt with unknown errors 0x%016Lx set (and %s)\n", + (errs & ~QIB_E_P_BITSEXTANT), msg); + *msg = '\0'; + } + + if (errs & QIB_E_P_SHDR) { + u64 symptom; + + /* determine cause, then write to clear */ + symptom = qib_read_kreg_port(ppd, krp_sendhdrsymptom); + qib_write_kreg_port(ppd, krp_sendhdrsymptom, 0); + err_decode(msg, sizeof(ppd->cpspec->epmsgbuf), symptom, + hdrchk_msgs); + *msg = '\0'; + /* senderrbuf cleared in SPKTERRS below */ + } + + if (errs & QIB_E_P_SPKTERRS) { + if ((errs & QIB_E_P_LINK_PKTERRS) && + !(ppd->lflags & QIBL_LINKACTIVE)) { + /* + * This can happen when trying to bring the link + * up, but the IB link changes state at the "wrong" + * time. The IB logic then complains that the packet + * isn't valid. We don't want to confuse people, so + * we just don't print them, except at debug + */ + err_decode(msg, sizeof(ppd->cpspec->epmsgbuf), + (errs & QIB_E_P_LINK_PKTERRS), + qib_7322p_error_msgs); + *msg = '\0'; + ignore_this_time = errs & QIB_E_P_LINK_PKTERRS; + } + qib_disarm_7322_senderrbufs(ppd); + } else if ((errs & QIB_E_P_LINK_PKTERRS) && + !(ppd->lflags & QIBL_LINKACTIVE)) { + /* + * This can happen when SMA is trying to bring the link + * up, but the IB link changes state at the "wrong" time. + * The IB logic then complains that the packet isn't + * valid. We don't want to confuse people, so we just + * don't print them, except at debug + */ + err_decode(msg, sizeof(ppd->cpspec->epmsgbuf), errs, + qib_7322p_error_msgs); + ignore_this_time = errs & QIB_E_P_LINK_PKTERRS; + *msg = '\0'; + } + + qib_write_kreg_port(ppd, krp_errclear, errs); + + errs &= ~ignore_this_time; + if (!errs) + goto done; + + if (errs & QIB_E_P_RPKTERRS) + qib_stats.sps_rcverrs++; + if (errs & QIB_E_P_SPKTERRS) + qib_stats.sps_txerrs++; + + iserr = errs & ~(QIB_E_P_RPKTERRS | QIB_E_P_PKTERRS); + + if (errs & QIB_E_P_SDMAERRS) + sdma_7322_p_errors(ppd, errs); + + if (errs & QIB_E_P_IBSTATUSCHANGED) { + u64 ibcs; + u8 ltstate; + + ibcs = qib_read_kreg_port(ppd, krp_ibcstatus_a); + ltstate = qib_7322_phys_portstate(ibcs); + + if (!(ppd->lflags & QIBL_IB_AUTONEG_INPROG)) + handle_serdes_issues(ppd, ibcs); + if (!(ppd->cpspec->ibcctrl_a & + SYM_MASK(IBCCtrlA_0, IBStatIntReductionEn))) { + /* + * We got our interrupt, so init code should be + * happy and not try alternatives. Now squelch + * other "chatter" from link-negotiation (pre Init) + */ + ppd->cpspec->ibcctrl_a |= + SYM_MASK(IBCCtrlA_0, IBStatIntReductionEn); + qib_write_kreg_port(ppd, krp_ibcctrl_a, + ppd->cpspec->ibcctrl_a); + } + + /* Update our picture of width and speed from chip */ + ppd->link_width_active = + (ibcs & SYM_MASK(IBCStatusA_0, LinkWidthActive)) ? + IB_WIDTH_4X : IB_WIDTH_1X; + ppd->link_speed_active = (ibcs & SYM_MASK(IBCStatusA_0, + LinkSpeedQDR)) ? QIB_IB_QDR : (ibcs & + SYM_MASK(IBCStatusA_0, LinkSpeedActive)) ? + QIB_IB_DDR : QIB_IB_SDR; + + if ((ppd->lflags & QIBL_IB_LINK_DISABLED) && ltstate != + IB_PHYSPORTSTATE_DISABLED) + qib_set_ib_7322_lstate(ppd, 0, + QLOGIC_IB_IBCC_LINKINITCMD_DISABLE); + else + /* + * Since going into a recovery state causes the link + * state to go down and since recovery is transitory, + * it is better if we "miss" ever seeing the link + * training state go into recovery (i.e., ignore this + * transition for link state special handling purposes) + * without updating lastibcstat. + */ + if (ltstate != IB_PHYSPORTSTATE_LINK_ERR_RECOVER && + ltstate != IB_PHYSPORTSTATE_RECOVERY_RETRAIN && + ltstate != IB_PHYSPORTSTATE_RECOVERY_WAITRMT && + ltstate != IB_PHYSPORTSTATE_RECOVERY_IDLE) + qib_handle_e_ibstatuschanged(ppd, ibcs); + } + if (*msg && iserr) + qib_dev_porterr(dd, ppd->port, "%s error\n", msg); + + if (ppd->state_wanted & ppd->lflags) + wake_up_interruptible(&ppd->state_wait); +done: + return; +} + +/* enable/disable chip from delivering interrupts */ +static void qib_7322_set_intr_state(struct qib_devdata *dd, u32 enable) +{ + if (enable) { + if (dd->flags & QIB_BADINTR) + return; + qib_write_kreg(dd, kr_intmask, dd->cspec->int_enable_mask); + /* cause any pending enabled interrupts to be re-delivered */ + qib_write_kreg(dd, kr_intclear, 0ULL); + if (dd->cspec->num_msix_entries) { + /* and same for MSIx */ + u64 val = qib_read_kreg64(dd, kr_intgranted); + + if (val) + qib_write_kreg(dd, kr_intgranted, val); + } + } else + qib_write_kreg(dd, kr_intmask, 0ULL); +} + +/* + * Try to cleanup as much as possible for anything that might have gone + * wrong while in freeze mode, such as pio buffers being written by user + * processes (causing armlaunch), send errors due to going into freeze mode, + * etc., and try to avoid causing extra interrupts while doing so. + * Forcibly update the in-memory pioavail register copies after cleanup + * because the chip won't do it while in freeze mode (the register values + * themselves are kept correct). + * Make sure that we don't lose any important interrupts by using the chip + * feature that says that writing 0 to a bit in *clear that is set in + * *status will cause an interrupt to be generated again (if allowed by + * the *mask value). + * This is in chip-specific code because of all of the register accesses, + * even though the details are similar on most chips. + */ +static void qib_7322_clear_freeze(struct qib_devdata *dd) +{ + int pidx; + + /* disable error interrupts, to avoid confusion */ + qib_write_kreg(dd, kr_errmask, 0ULL); + + for (pidx = 0; pidx < dd->num_pports; ++pidx) + if (dd->pport[pidx].link_speed_supported) + qib_write_kreg_port(dd->pport + pidx, krp_errmask, + 0ULL); + + /* also disable interrupts; errormask is sometimes overwritten */ + qib_7322_set_intr_state(dd, 0); + + /* clear the freeze, and be sure chip saw it */ + qib_write_kreg(dd, kr_control, dd->control); + qib_read_kreg32(dd, kr_scratch); + + /* + * Force new interrupt if any hwerr, error or interrupt bits are + * still set, and clear "safe" send packet errors related to freeze + * and cancelling sends. Re-enable error interrupts before possible + * force of re-interrupt on pending interrupts. + */ + qib_write_kreg(dd, kr_hwerrclear, 0ULL); + qib_write_kreg(dd, kr_errclear, E_SPKT_ERRS_IGNORE); + qib_write_kreg(dd, kr_errmask, dd->cspec->errormask); + /* We need to purge per-port errs and reset mask, too */ + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + if (!dd->pport[pidx].link_speed_supported) + continue; + qib_write_kreg_port(dd->pport + pidx, krp_errclear, ~0Ull); + qib_write_kreg_port(dd->pport + pidx, krp_errmask, ~0Ull); + } + qib_7322_set_intr_state(dd, 1); +} + +/* no error handling to speak of */ +/** + * qib_7322_handle_hwerrors - display hardware errors. + * @dd: the qlogic_ib device + * @msg: the output buffer + * @msgl: the size of the output buffer + * + * Use same msg buffer as regular errors to avoid excessive stack + * use. Most hardware errors are catastrophic, but for right now, + * we'll print them and continue. We reuse the same message buffer as + * qib_handle_errors() to avoid excessive stack usage. + */ +static void qib_7322_handle_hwerrors(struct qib_devdata *dd, char *msg, + size_t msgl) +{ + u64 hwerrs; + u32 ctrl; + int isfatal = 0; + + hwerrs = qib_read_kreg64(dd, kr_hwerrstatus); + if (!hwerrs) + goto bail; + if (hwerrs == ~0ULL) { + qib_dev_err(dd, + "Read of hardware error status failed (all bits set); ignoring\n"); + goto bail; + } + qib_stats.sps_hwerrs++; + + /* Always clear the error status register, except BIST fail */ + qib_write_kreg(dd, kr_hwerrclear, hwerrs & + ~HWE_MASK(PowerOnBISTFailed)); + + hwerrs &= dd->cspec->hwerrmask; + + /* no EEPROM logging, yet */ + + if (hwerrs) + qib_devinfo(dd->pcidev, + "Hardware error: hwerr=0x%llx (cleared)\n", + (unsigned long long) hwerrs); + + ctrl = qib_read_kreg32(dd, kr_control); + if ((ctrl & SYM_MASK(Control, FreezeMode)) && !dd->diag_client) { + /* + * No recovery yet... + */ + if ((hwerrs & ~HWE_MASK(LATriggered)) || + dd->cspec->stay_in_freeze) { + /* + * If any set that we aren't ignoring only make the + * complaint once, in case it's stuck or recurring, + * and we get here multiple times + * Force link down, so switch knows, and + * LEDs are turned off. + */ + if (dd->flags & QIB_INITTED) + isfatal = 1; + } else + qib_7322_clear_freeze(dd); + } + + if (hwerrs & HWE_MASK(PowerOnBISTFailed)) { + isfatal = 1; + strscpy(msg, + "[Memory BIST test failed, InfiniPath hardware unusable]", + msgl); + /* ignore from now on, so disable until driver reloaded */ + dd->cspec->hwerrmask &= ~HWE_MASK(PowerOnBISTFailed); + qib_write_kreg(dd, kr_hwerrmask, dd->cspec->hwerrmask); + } + + err_decode(msg, msgl, hwerrs, qib_7322_hwerror_msgs); + + /* Ignore esoteric PLL failures et al. */ + + qib_dev_err(dd, "%s hardware error\n", msg); + + if (hwerrs & + (SYM_MASK(HwErrMask, SDmaMemReadErrMask_0) | + SYM_MASK(HwErrMask, SDmaMemReadErrMask_1))) { + int pidx = 0; + int err; + unsigned long flags; + struct qib_pportdata *ppd = dd->pport; + + for (; pidx < dd->num_pports; ++pidx, ppd++) { + err = 0; + if (pidx == 0 && (hwerrs & + SYM_MASK(HwErrMask, SDmaMemReadErrMask_0))) + err++; + if (pidx == 1 && (hwerrs & + SYM_MASK(HwErrMask, SDmaMemReadErrMask_1))) + err++; + if (err) { + spin_lock_irqsave(&ppd->sdma_lock, flags); + dump_sdma_7322_state(ppd); + spin_unlock_irqrestore(&ppd->sdma_lock, flags); + } + } + } + + if (isfatal && !dd->diag_client) { + qib_dev_err(dd, + "Fatal Hardware Error, no longer usable, SN %.16s\n", + dd->serial); + /* + * for /sys status file and user programs to print; if no + * trailing brace is copied, we'll know it was truncated. + */ + if (dd->freezemsg) + snprintf(dd->freezemsg, dd->freezelen, + "{%s}", msg); + qib_disable_after_error(dd); + } +bail:; +} + +/** + * qib_7322_init_hwerrors - enable hardware errors + * @dd: the qlogic_ib device + * + * now that we have finished initializing everything that might reasonably + * cause a hardware error, and cleared those errors bits as they occur, + * we can enable hardware errors in the mask (potentially enabling + * freeze mode), and enable hardware errors as errors (along with + * everything else) in errormask + */ +static void qib_7322_init_hwerrors(struct qib_devdata *dd) +{ + int pidx; + u64 extsval; + + extsval = qib_read_kreg64(dd, kr_extstatus); + if (!(extsval & (QIB_EXTS_MEMBIST_DISABLED | + QIB_EXTS_MEMBIST_ENDTEST))) + qib_dev_err(dd, "MemBIST did not complete!\n"); + + /* never clear BIST failure, so reported on each driver load */ + qib_write_kreg(dd, kr_hwerrclear, ~HWE_MASK(PowerOnBISTFailed)); + qib_write_kreg(dd, kr_hwerrmask, dd->cspec->hwerrmask); + + /* clear all */ + qib_write_kreg(dd, kr_errclear, ~0ULL); + /* enable errors that are masked, at least this first time. */ + qib_write_kreg(dd, kr_errmask, ~0ULL); + dd->cspec->errormask = qib_read_kreg64(dd, kr_errmask); + for (pidx = 0; pidx < dd->num_pports; ++pidx) + if (dd->pport[pidx].link_speed_supported) + qib_write_kreg_port(dd->pport + pidx, krp_errmask, + ~0ULL); +} + +/* + * Disable and enable the armlaunch error. Used for PIO bandwidth testing + * on chips that are count-based, rather than trigger-based. There is no + * reference counting, but that's also fine, given the intended use. + * Only chip-specific because it's all register accesses + */ +static void qib_set_7322_armlaunch(struct qib_devdata *dd, u32 enable) +{ + if (enable) { + qib_write_kreg(dd, kr_errclear, QIB_E_SPIOARMLAUNCH); + dd->cspec->errormask |= QIB_E_SPIOARMLAUNCH; + } else + dd->cspec->errormask &= ~QIB_E_SPIOARMLAUNCH; + qib_write_kreg(dd, kr_errmask, dd->cspec->errormask); +} + +/* + * Formerly took parameter <which> in pre-shifted, + * pre-merged form with LinkCmd and LinkInitCmd + * together, and assuming the zero was NOP. + */ +static void qib_set_ib_7322_lstate(struct qib_pportdata *ppd, u16 linkcmd, + u16 linitcmd) +{ + u64 mod_wd; + struct qib_devdata *dd = ppd->dd; + unsigned long flags; + + if (linitcmd == QLOGIC_IB_IBCC_LINKINITCMD_DISABLE) { + /* + * If we are told to disable, note that so link-recovery + * code does not attempt to bring us back up. + * Also reset everything that we can, so we start + * completely clean when re-enabled (before we + * actually issue the disable to the IBC) + */ + qib_7322_mini_pcs_reset(ppd); + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags |= QIBL_IB_LINK_DISABLED; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + } else if (linitcmd || linkcmd == QLOGIC_IB_IBCC_LINKCMD_DOWN) { + /* + * Any other linkinitcmd will lead to LINKDOWN and then + * to INIT (if all is well), so clear flag to let + * link-recovery code attempt to bring us back up. + */ + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~QIBL_IB_LINK_DISABLED; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + /* + * Clear status change interrupt reduction so the + * new state is seen. + */ + ppd->cpspec->ibcctrl_a &= + ~SYM_MASK(IBCCtrlA_0, IBStatIntReductionEn); + } + + mod_wd = (linkcmd << IBA7322_IBCC_LINKCMD_SHIFT) | + (linitcmd << QLOGIC_IB_IBCC_LINKINITCMD_SHIFT); + + qib_write_kreg_port(ppd, krp_ibcctrl_a, ppd->cpspec->ibcctrl_a | + mod_wd); + /* write to chip to prevent back-to-back writes of ibc reg */ + qib_write_kreg(dd, kr_scratch, 0); + +} + +/* + * The total RCV buffer memory is 64KB, used for both ports, and is + * in units of 64 bytes (same as IB flow control credit unit). + * The consumedVL unit in the same registers are in 32 byte units! + * So, a VL15 packet needs 4.50 IB credits, and 9 rx buffer chunks, + * and we can therefore allocate just 9 IB credits for 2 VL15 packets + * in krp_rxcreditvl15, rather than 10. + */ +#define RCV_BUF_UNITSZ 64 +#define NUM_RCV_BUF_UNITS(dd) ((64 * 1024) / (RCV_BUF_UNITSZ * dd->num_pports)) + +static void set_vls(struct qib_pportdata *ppd) +{ + int i, numvls, totcred, cred_vl, vl0extra; + struct qib_devdata *dd = ppd->dd; + u64 val; + + numvls = qib_num_vls(ppd->vls_operational); + + /* + * Set up per-VL credits. Below is kluge based on these assumptions: + * 1) port is disabled at the time early_init is called. + * 2) give VL15 17 credits, for two max-plausible packets. + * 3) Give VL0-N the rest, with any rounding excess used for VL0 + */ + /* 2 VL15 packets @ 288 bytes each (including IB headers) */ + totcred = NUM_RCV_BUF_UNITS(dd); + cred_vl = (2 * 288 + RCV_BUF_UNITSZ - 1) / RCV_BUF_UNITSZ; + totcred -= cred_vl; + qib_write_kreg_port(ppd, krp_rxcreditvl15, (u64) cred_vl); + cred_vl = totcred / numvls; + vl0extra = totcred - cred_vl * numvls; + qib_write_kreg_port(ppd, krp_rxcreditvl0, cred_vl + vl0extra); + for (i = 1; i < numvls; i++) + qib_write_kreg_port(ppd, krp_rxcreditvl0 + i, cred_vl); + for (; i < 8; i++) /* no buffer space for other VLs */ + qib_write_kreg_port(ppd, krp_rxcreditvl0 + i, 0); + + /* Notify IBC that credits need to be recalculated */ + val = qib_read_kreg_port(ppd, krp_ibsdtestiftx); + val |= SYM_MASK(IB_SDTEST_IF_TX_0, CREDIT_CHANGE); + qib_write_kreg_port(ppd, krp_ibsdtestiftx, val); + qib_write_kreg(dd, kr_scratch, 0ULL); + val &= ~SYM_MASK(IB_SDTEST_IF_TX_0, CREDIT_CHANGE); + qib_write_kreg_port(ppd, krp_ibsdtestiftx, val); + + for (i = 0; i < numvls; i++) + val = qib_read_kreg_port(ppd, krp_rxcreditvl0 + i); + val = qib_read_kreg_port(ppd, krp_rxcreditvl15); + + /* Change the number of operational VLs */ + ppd->cpspec->ibcctrl_a = (ppd->cpspec->ibcctrl_a & + ~SYM_MASK(IBCCtrlA_0, NumVLane)) | + ((u64)(numvls - 1) << SYM_LSB(IBCCtrlA_0, NumVLane)); + qib_write_kreg_port(ppd, krp_ibcctrl_a, ppd->cpspec->ibcctrl_a); + qib_write_kreg(dd, kr_scratch, 0ULL); +} + +/* + * The code that deals with actual SerDes is in serdes_7322_init(). + * Compared to the code for iba7220, it is minimal. + */ +static int serdes_7322_init(struct qib_pportdata *ppd); + +/** + * qib_7322_bringup_serdes - bring up the serdes + * @ppd: physical port on the qlogic_ib device + */ +static int qib_7322_bringup_serdes(struct qib_pportdata *ppd) +{ + struct qib_devdata *dd = ppd->dd; + u64 val, guid, ibc; + unsigned long flags; + + /* + * SerDes model not in Pd, but still need to + * set up much of IBCCtrl and IBCDDRCtrl; move elsewhere + * eventually. + */ + /* Put IBC in reset, sends disabled (should be in reset already) */ + ppd->cpspec->ibcctrl_a &= ~SYM_MASK(IBCCtrlA_0, IBLinkEn); + qib_write_kreg_port(ppd, krp_ibcctrl_a, ppd->cpspec->ibcctrl_a); + qib_write_kreg(dd, kr_scratch, 0ULL); + + /* ensure previous Tx parameters are not still forced */ + qib_write_kreg_port(ppd, krp_tx_deemph_override, + SYM_MASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0, + reset_tx_deemphasis_override)); + + if (qib_compat_ddr_negotiate) { + ppd->cpspec->ibdeltainprog = 1; + ppd->cpspec->ibsymsnap = read_7322_creg32_port(ppd, + crp_ibsymbolerr); + ppd->cpspec->iblnkerrsnap = read_7322_creg32_port(ppd, + crp_iblinkerrrecov); + } + + /* flowcontrolwatermark is in units of KBytes */ + ibc = 0x5ULL << SYM_LSB(IBCCtrlA_0, FlowCtrlWaterMark); + /* + * Flow control is sent this often, even if no changes in + * buffer space occur. Units are 128ns for this chip. + * Set to 3usec. + */ + ibc |= 24ULL << SYM_LSB(IBCCtrlA_0, FlowCtrlPeriod); + /* max error tolerance */ + ibc |= 0xfULL << SYM_LSB(IBCCtrlA_0, PhyerrThreshold); + /* IB credit flow control. */ + ibc |= 0xfULL << SYM_LSB(IBCCtrlA_0, OverrunThreshold); + /* + * set initial max size pkt IBC will send, including ICRC; it's the + * PIO buffer size in dwords, less 1; also see qib_set_mtu() + */ + ibc |= ((u64)(ppd->ibmaxlen >> 2) + 1) << + SYM_LSB(IBCCtrlA_0, MaxPktLen); + ppd->cpspec->ibcctrl_a = ibc; /* without linkcmd or linkinitcmd! */ + + /* + * Reset the PCS interface to the serdes (and also ibc, which is still + * in reset from above). Writes new value of ibcctrl_a as last step. + */ + qib_7322_mini_pcs_reset(ppd); + + if (!ppd->cpspec->ibcctrl_b) { + unsigned lse = ppd->link_speed_enabled; + + /* + * Not on re-init after reset, establish shadow + * and force initial config. + */ + ppd->cpspec->ibcctrl_b = qib_read_kreg_port(ppd, + krp_ibcctrl_b); + ppd->cpspec->ibcctrl_b &= ~(IBA7322_IBC_SPEED_QDR | + IBA7322_IBC_SPEED_DDR | + IBA7322_IBC_SPEED_SDR | + IBA7322_IBC_WIDTH_AUTONEG | + SYM_MASK(IBCCtrlB_0, IB_LANE_REV_SUPPORTED)); + if (lse & (lse - 1)) /* Muliple speeds enabled */ + ppd->cpspec->ibcctrl_b |= + (lse << IBA7322_IBC_SPEED_LSB) | + IBA7322_IBC_IBTA_1_2_MASK | + IBA7322_IBC_MAX_SPEED_MASK; + else + ppd->cpspec->ibcctrl_b |= (lse == QIB_IB_QDR) ? + IBA7322_IBC_SPEED_QDR | + IBA7322_IBC_IBTA_1_2_MASK : + (lse == QIB_IB_DDR) ? + IBA7322_IBC_SPEED_DDR : + IBA7322_IBC_SPEED_SDR; + if ((ppd->link_width_enabled & (IB_WIDTH_1X | IB_WIDTH_4X)) == + (IB_WIDTH_1X | IB_WIDTH_4X)) + ppd->cpspec->ibcctrl_b |= IBA7322_IBC_WIDTH_AUTONEG; + else + ppd->cpspec->ibcctrl_b |= + ppd->link_width_enabled == IB_WIDTH_4X ? + IBA7322_IBC_WIDTH_4X_ONLY : + IBA7322_IBC_WIDTH_1X_ONLY; + + /* always enable these on driver reload, not sticky */ + ppd->cpspec->ibcctrl_b |= (IBA7322_IBC_RXPOL_MASK | + IBA7322_IBC_HRTBT_MASK); + } + qib_write_kreg_port(ppd, krp_ibcctrl_b, ppd->cpspec->ibcctrl_b); + + /* setup so we have more time at CFGTEST to change H1 */ + val = qib_read_kreg_port(ppd, krp_ibcctrl_c); + val &= ~SYM_MASK(IBCCtrlC_0, IB_FRONT_PORCH); + val |= 0xfULL << SYM_LSB(IBCCtrlC_0, IB_FRONT_PORCH); + qib_write_kreg_port(ppd, krp_ibcctrl_c, val); + + serdes_7322_init(ppd); + + guid = be64_to_cpu(ppd->guid); + if (!guid) { + if (dd->base_guid) + guid = be64_to_cpu(dd->base_guid) + ppd->port - 1; + ppd->guid = cpu_to_be64(guid); + } + + qib_write_kreg_port(ppd, krp_hrtbt_guid, guid); + /* write to chip to prevent back-to-back writes of ibc reg */ + qib_write_kreg(dd, kr_scratch, 0); + + /* Enable port */ + ppd->cpspec->ibcctrl_a |= SYM_MASK(IBCCtrlA_0, IBLinkEn); + set_vls(ppd); + + /* initially come up DISABLED, without sending anything. */ + val = ppd->cpspec->ibcctrl_a | (QLOGIC_IB_IBCC_LINKINITCMD_DISABLE << + QLOGIC_IB_IBCC_LINKINITCMD_SHIFT); + qib_write_kreg_port(ppd, krp_ibcctrl_a, val); + qib_write_kreg(dd, kr_scratch, 0ULL); + /* clear the linkinit cmds */ + ppd->cpspec->ibcctrl_a = val & ~SYM_MASK(IBCCtrlA_0, LinkInitCmd); + + /* be paranoid against later code motion, etc. */ + spin_lock_irqsave(&dd->cspec->rcvmod_lock, flags); + ppd->p_rcvctrl |= SYM_MASK(RcvCtrl_0, RcvIBPortEnable); + qib_write_kreg_port(ppd, krp_rcvctrl, ppd->p_rcvctrl); + spin_unlock_irqrestore(&dd->cspec->rcvmod_lock, flags); + + /* Also enable IBSTATUSCHG interrupt. */ + val = qib_read_kreg_port(ppd, krp_errmask); + qib_write_kreg_port(ppd, krp_errmask, + val | ERR_MASK_N(IBStatusChanged)); + + /* Always zero until we start messing with SerDes for real */ + return 0; +} + +/** + * qib_7322_mini_quiet_serdes - set serdes to txidle + * @ppd: the qlogic_ib device + * Called when driver is being unloaded + */ +static void qib_7322_mini_quiet_serdes(struct qib_pportdata *ppd) +{ + u64 val; + unsigned long flags; + + qib_set_ib_7322_lstate(ppd, 0, QLOGIC_IB_IBCC_LINKINITCMD_DISABLE); + + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~QIBL_IB_AUTONEG_INPROG; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + wake_up(&ppd->cpspec->autoneg_wait); + cancel_delayed_work_sync(&ppd->cpspec->autoneg_work); + if (ppd->dd->cspec->r1) + cancel_delayed_work_sync(&ppd->cpspec->ipg_work); + + ppd->cpspec->chase_end = 0; + if (ppd->cpspec->chase_timer.function) /* if initted */ + del_timer_sync(&ppd->cpspec->chase_timer); + + /* + * Despite the name, actually disables IBC as well. Do it when + * we are as sure as possible that no more packets can be + * received, following the down and the PCS reset. + * The actual disabling happens in qib_7322_mini_pci_reset(), + * along with the PCS being reset. + */ + ppd->cpspec->ibcctrl_a &= ~SYM_MASK(IBCCtrlA_0, IBLinkEn); + qib_7322_mini_pcs_reset(ppd); + + /* + * Update the adjusted counters so the adjustment persists + * across driver reload. + */ + if (ppd->cpspec->ibsymdelta || ppd->cpspec->iblnkerrdelta || + ppd->cpspec->ibdeltainprog || ppd->cpspec->iblnkdowndelta) { + struct qib_devdata *dd = ppd->dd; + u64 diagc; + + /* enable counter writes */ + diagc = qib_read_kreg64(dd, kr_hwdiagctrl); + qib_write_kreg(dd, kr_hwdiagctrl, + diagc | SYM_MASK(HwDiagCtrl, CounterWrEnable)); + + if (ppd->cpspec->ibsymdelta || ppd->cpspec->ibdeltainprog) { + val = read_7322_creg32_port(ppd, crp_ibsymbolerr); + if (ppd->cpspec->ibdeltainprog) + val -= val - ppd->cpspec->ibsymsnap; + val -= ppd->cpspec->ibsymdelta; + write_7322_creg_port(ppd, crp_ibsymbolerr, val); + } + if (ppd->cpspec->iblnkerrdelta || ppd->cpspec->ibdeltainprog) { + val = read_7322_creg32_port(ppd, crp_iblinkerrrecov); + if (ppd->cpspec->ibdeltainprog) + val -= val - ppd->cpspec->iblnkerrsnap; + val -= ppd->cpspec->iblnkerrdelta; + write_7322_creg_port(ppd, crp_iblinkerrrecov, val); + } + if (ppd->cpspec->iblnkdowndelta) { + val = read_7322_creg32_port(ppd, crp_iblinkdown); + val += ppd->cpspec->iblnkdowndelta; + write_7322_creg_port(ppd, crp_iblinkdown, val); + } + /* + * No need to save ibmalfdelta since IB perfcounters + * are cleared on driver reload. + */ + + /* and disable counter writes */ + qib_write_kreg(dd, kr_hwdiagctrl, diagc); + } +} + +/** + * qib_setup_7322_setextled - set the state of the two external LEDs + * @ppd: physical port on the qlogic_ib device + * @on: whether the link is up or not + * + * The exact combo of LEDs if on is true is determined by looking + * at the ibcstatus. + * + * These LEDs indicate the physical and logical state of IB link. + * For this chip (at least with recommended board pinouts), LED1 + * is Yellow (logical state) and LED2 is Green (physical state), + * + * Note: We try to match the Mellanox HCA LED behavior as best + * we can. Green indicates physical link state is OK (something is + * plugged in, and we can train). + * Amber indicates the link is logically up (ACTIVE). + * Mellanox further blinks the amber LED to indicate data packet + * activity, but we have no hardware support for that, so it would + * require waking up every 10-20 msecs and checking the counters + * on the chip, and then turning the LED off if appropriate. That's + * visible overhead, so not something we will do. + */ +static void qib_setup_7322_setextled(struct qib_pportdata *ppd, u32 on) +{ + struct qib_devdata *dd = ppd->dd; + u64 extctl, ledblink = 0, val; + unsigned long flags; + int yel, grn; + + /* + * The diags use the LED to indicate diag info, so we leave + * the external LED alone when the diags are running. + */ + if (dd->diag_client) + return; + + /* Allow override of LED display for, e.g. Locating system in rack */ + if (ppd->led_override) { + grn = (ppd->led_override & QIB_LED_PHYS); + yel = (ppd->led_override & QIB_LED_LOG); + } else if (on) { + val = qib_read_kreg_port(ppd, krp_ibcstatus_a); + grn = qib_7322_phys_portstate(val) == + IB_PHYSPORTSTATE_LINKUP; + yel = qib_7322_iblink_state(val) == IB_PORT_ACTIVE; + } else { + grn = 0; + yel = 0; + } + + spin_lock_irqsave(&dd->cspec->gpio_lock, flags); + extctl = dd->cspec->extctrl & (ppd->port == 1 ? + ~ExtLED_IB1_MASK : ~ExtLED_IB2_MASK); + if (grn) { + extctl |= ppd->port == 1 ? ExtLED_IB1_GRN : ExtLED_IB2_GRN; + /* + * Counts are in chip clock (4ns) periods. + * This is 1/16 sec (66.6ms) on, + * 3/16 sec (187.5 ms) off, with packets rcvd. + */ + ledblink = ((66600 * 1000UL / 4) << IBA7322_LEDBLINK_ON_SHIFT) | + ((187500 * 1000UL / 4) << IBA7322_LEDBLINK_OFF_SHIFT); + } + if (yel) + extctl |= ppd->port == 1 ? ExtLED_IB1_YEL : ExtLED_IB2_YEL; + dd->cspec->extctrl = extctl; + qib_write_kreg(dd, kr_extctrl, dd->cspec->extctrl); + spin_unlock_irqrestore(&dd->cspec->gpio_lock, flags); + + if (ledblink) /* blink the LED on packet receive */ + qib_write_kreg_port(ppd, krp_rcvpktledcnt, ledblink); +} + +#ifdef CONFIG_INFINIBAND_QIB_DCA + +static int qib_7322_notify_dca(struct qib_devdata *dd, unsigned long event) +{ + switch (event) { + case DCA_PROVIDER_ADD: + if (dd->flags & QIB_DCA_ENABLED) + break; + if (!dca_add_requester(&dd->pcidev->dev)) { + qib_devinfo(dd->pcidev, "DCA enabled\n"); + dd->flags |= QIB_DCA_ENABLED; + qib_setup_dca(dd); + } + break; + case DCA_PROVIDER_REMOVE: + if (dd->flags & QIB_DCA_ENABLED) { + dca_remove_requester(&dd->pcidev->dev); + dd->flags &= ~QIB_DCA_ENABLED; + dd->cspec->dca_ctrl = 0; + qib_write_kreg(dd, KREG_IDX(DCACtrlA), + dd->cspec->dca_ctrl); + } + break; + } + return 0; +} + +static void qib_update_rhdrq_dca(struct qib_ctxtdata *rcd, int cpu) +{ + struct qib_devdata *dd = rcd->dd; + struct qib_chip_specific *cspec = dd->cspec; + + if (!(dd->flags & QIB_DCA_ENABLED)) + return; + if (cspec->rhdr_cpu[rcd->ctxt] != cpu) { + const struct dca_reg_map *rmp; + + cspec->rhdr_cpu[rcd->ctxt] = cpu; + rmp = &dca_rcvhdr_reg_map[rcd->ctxt]; + cspec->dca_rcvhdr_ctrl[rmp->shadow_inx] &= rmp->mask; + cspec->dca_rcvhdr_ctrl[rmp->shadow_inx] |= + (u64) dca3_get_tag(&dd->pcidev->dev, cpu) << rmp->lsb; + qib_devinfo(dd->pcidev, + "Ctxt %d cpu %d dca %llx\n", rcd->ctxt, cpu, + (long long) cspec->dca_rcvhdr_ctrl[rmp->shadow_inx]); + qib_write_kreg(dd, rmp->regno, + cspec->dca_rcvhdr_ctrl[rmp->shadow_inx]); + cspec->dca_ctrl |= SYM_MASK(DCACtrlA, RcvHdrqDCAEnable); + qib_write_kreg(dd, KREG_IDX(DCACtrlA), cspec->dca_ctrl); + } +} + +static void qib_update_sdma_dca(struct qib_pportdata *ppd, int cpu) +{ + struct qib_devdata *dd = ppd->dd; + struct qib_chip_specific *cspec = dd->cspec; + unsigned pidx = ppd->port - 1; + + if (!(dd->flags & QIB_DCA_ENABLED)) + return; + if (cspec->sdma_cpu[pidx] != cpu) { + cspec->sdma_cpu[pidx] = cpu; + cspec->dca_rcvhdr_ctrl[4] &= ~(ppd->hw_pidx ? + SYM_MASK(DCACtrlF, SendDma1DCAOPH) : + SYM_MASK(DCACtrlF, SendDma0DCAOPH)); + cspec->dca_rcvhdr_ctrl[4] |= + (u64) dca3_get_tag(&dd->pcidev->dev, cpu) << + (ppd->hw_pidx ? + SYM_LSB(DCACtrlF, SendDma1DCAOPH) : + SYM_LSB(DCACtrlF, SendDma0DCAOPH)); + qib_devinfo(dd->pcidev, + "sdma %d cpu %d dca %llx\n", ppd->hw_pidx, cpu, + (long long) cspec->dca_rcvhdr_ctrl[4]); + qib_write_kreg(dd, KREG_IDX(DCACtrlF), + cspec->dca_rcvhdr_ctrl[4]); + cspec->dca_ctrl |= ppd->hw_pidx ? + SYM_MASK(DCACtrlA, SendDMAHead1DCAEnable) : + SYM_MASK(DCACtrlA, SendDMAHead0DCAEnable); + qib_write_kreg(dd, KREG_IDX(DCACtrlA), cspec->dca_ctrl); + } +} + +static void qib_setup_dca(struct qib_devdata *dd) +{ + struct qib_chip_specific *cspec = dd->cspec; + int i; + + for (i = 0; i < ARRAY_SIZE(cspec->rhdr_cpu); i++) + cspec->rhdr_cpu[i] = -1; + for (i = 0; i < ARRAY_SIZE(cspec->sdma_cpu); i++) + cspec->sdma_cpu[i] = -1; + cspec->dca_rcvhdr_ctrl[0] = + (1ULL << SYM_LSB(DCACtrlB, RcvHdrq0DCAXfrCnt)) | + (1ULL << SYM_LSB(DCACtrlB, RcvHdrq1DCAXfrCnt)) | + (1ULL << SYM_LSB(DCACtrlB, RcvHdrq2DCAXfrCnt)) | + (1ULL << SYM_LSB(DCACtrlB, RcvHdrq3DCAXfrCnt)); + cspec->dca_rcvhdr_ctrl[1] = + (1ULL << SYM_LSB(DCACtrlC, RcvHdrq4DCAXfrCnt)) | + (1ULL << SYM_LSB(DCACtrlC, RcvHdrq5DCAXfrCnt)) | + (1ULL << SYM_LSB(DCACtrlC, RcvHdrq6DCAXfrCnt)) | + (1ULL << SYM_LSB(DCACtrlC, RcvHdrq7DCAXfrCnt)); + cspec->dca_rcvhdr_ctrl[2] = + (1ULL << SYM_LSB(DCACtrlD, RcvHdrq8DCAXfrCnt)) | + (1ULL << SYM_LSB(DCACtrlD, RcvHdrq9DCAXfrCnt)) | + (1ULL << SYM_LSB(DCACtrlD, RcvHdrq10DCAXfrCnt)) | + (1ULL << SYM_LSB(DCACtrlD, RcvHdrq11DCAXfrCnt)); + cspec->dca_rcvhdr_ctrl[3] = + (1ULL << SYM_LSB(DCACtrlE, RcvHdrq12DCAXfrCnt)) | + (1ULL << SYM_LSB(DCACtrlE, RcvHdrq13DCAXfrCnt)) | + (1ULL << SYM_LSB(DCACtrlE, RcvHdrq14DCAXfrCnt)) | + (1ULL << SYM_LSB(DCACtrlE, RcvHdrq15DCAXfrCnt)); + cspec->dca_rcvhdr_ctrl[4] = + (1ULL << SYM_LSB(DCACtrlF, RcvHdrq16DCAXfrCnt)) | + (1ULL << SYM_LSB(DCACtrlF, RcvHdrq17DCAXfrCnt)); + for (i = 0; i < ARRAY_SIZE(cspec->sdma_cpu); i++) + qib_write_kreg(dd, KREG_IDX(DCACtrlB) + i, + cspec->dca_rcvhdr_ctrl[i]); + for (i = 0; i < cspec->num_msix_entries; i++) + setup_dca_notifier(dd, i); +} + +static void qib_irq_notifier_notify(struct irq_affinity_notify *notify, + const cpumask_t *mask) +{ + struct qib_irq_notify *n = + container_of(notify, struct qib_irq_notify, notify); + int cpu = cpumask_first(mask); + + if (n->rcv) { + struct qib_ctxtdata *rcd = (struct qib_ctxtdata *)n->arg; + + qib_update_rhdrq_dca(rcd, cpu); + } else { + struct qib_pportdata *ppd = (struct qib_pportdata *)n->arg; + + qib_update_sdma_dca(ppd, cpu); + } +} + +static void qib_irq_notifier_release(struct kref *ref) +{ + struct qib_irq_notify *n = + container_of(ref, struct qib_irq_notify, notify.kref); + struct qib_devdata *dd; + + if (n->rcv) { + struct qib_ctxtdata *rcd = (struct qib_ctxtdata *)n->arg; + + dd = rcd->dd; + } else { + struct qib_pportdata *ppd = (struct qib_pportdata *)n->arg; + + dd = ppd->dd; + } + qib_devinfo(dd->pcidev, + "release on HCA notify 0x%p n 0x%p\n", ref, n); + kfree(n); +} +#endif + +static void qib_7322_free_irq(struct qib_devdata *dd) +{ + u64 intgranted; + int i; + + dd->cspec->main_int_mask = ~0ULL; + + for (i = 0; i < dd->cspec->num_msix_entries; i++) { + /* only free IRQs that were allocated */ + if (dd->cspec->msix_entries[i].arg) { +#ifdef CONFIG_INFINIBAND_QIB_DCA + reset_dca_notifier(dd, i); +#endif + irq_set_affinity_hint(pci_irq_vector(dd->pcidev, i), + NULL); + free_cpumask_var(dd->cspec->msix_entries[i].mask); + pci_free_irq(dd->pcidev, i, + dd->cspec->msix_entries[i].arg); + } + } + + /* If num_msix_entries was 0, disable the INTx IRQ */ + if (!dd->cspec->num_msix_entries) + pci_free_irq(dd->pcidev, 0, dd); + else + dd->cspec->num_msix_entries = 0; + + pci_free_irq_vectors(dd->pcidev); + + /* make sure no MSIx interrupts are left pending */ + intgranted = qib_read_kreg64(dd, kr_intgranted); + if (intgranted) + qib_write_kreg(dd, kr_intgranted, intgranted); +} + +static void qib_setup_7322_cleanup(struct qib_devdata *dd) +{ + int i; + +#ifdef CONFIG_INFINIBAND_QIB_DCA + if (dd->flags & QIB_DCA_ENABLED) { + dca_remove_requester(&dd->pcidev->dev); + dd->flags &= ~QIB_DCA_ENABLED; + dd->cspec->dca_ctrl = 0; + qib_write_kreg(dd, KREG_IDX(DCACtrlA), dd->cspec->dca_ctrl); + } +#endif + + qib_7322_free_irq(dd); + kfree(dd->cspec->cntrs); + bitmap_free(dd->cspec->sendchkenable); + bitmap_free(dd->cspec->sendgrhchk); + bitmap_free(dd->cspec->sendibchk); + kfree(dd->cspec->msix_entries); + for (i = 0; i < dd->num_pports; i++) { + unsigned long flags; + u32 mask = QSFP_GPIO_MOD_PRS_N | + (QSFP_GPIO_MOD_PRS_N << QSFP_GPIO_PORT2_SHIFT); + + kfree(dd->pport[i].cpspec->portcntrs); + if (dd->flags & QIB_HAS_QSFP) { + spin_lock_irqsave(&dd->cspec->gpio_lock, flags); + dd->cspec->gpio_mask &= ~mask; + qib_write_kreg(dd, kr_gpio_mask, dd->cspec->gpio_mask); + spin_unlock_irqrestore(&dd->cspec->gpio_lock, flags); + } + } +} + +/* handle SDMA interrupts */ +static void sdma_7322_intr(struct qib_devdata *dd, u64 istat) +{ + struct qib_pportdata *ppd0 = &dd->pport[0]; + struct qib_pportdata *ppd1 = &dd->pport[1]; + u64 intr0 = istat & (INT_MASK_P(SDma, 0) | + INT_MASK_P(SDmaIdle, 0) | INT_MASK_P(SDmaProgress, 0)); + u64 intr1 = istat & (INT_MASK_P(SDma, 1) | + INT_MASK_P(SDmaIdle, 1) | INT_MASK_P(SDmaProgress, 1)); + + if (intr0) + qib_sdma_intr(ppd0); + if (intr1) + qib_sdma_intr(ppd1); + + if (istat & INT_MASK_PM(SDmaCleanupDone, 0)) + qib_sdma_process_event(ppd0, qib_sdma_event_e20_hw_started); + if (istat & INT_MASK_PM(SDmaCleanupDone, 1)) + qib_sdma_process_event(ppd1, qib_sdma_event_e20_hw_started); +} + +/* + * Set or clear the Send buffer available interrupt enable bit. + */ +static void qib_wantpiobuf_7322_intr(struct qib_devdata *dd, u32 needint) +{ + unsigned long flags; + + spin_lock_irqsave(&dd->sendctrl_lock, flags); + if (needint) + dd->sendctrl |= SYM_MASK(SendCtrl, SendIntBufAvail); + else + dd->sendctrl &= ~SYM_MASK(SendCtrl, SendIntBufAvail); + qib_write_kreg(dd, kr_sendctrl, dd->sendctrl); + qib_write_kreg(dd, kr_scratch, 0ULL); + spin_unlock_irqrestore(&dd->sendctrl_lock, flags); +} + +/* + * Somehow got an interrupt with reserved bits set in interrupt status. + * Print a message so we know it happened, then clear them. + * keep mainline interrupt handler cache-friendly + */ +static noinline void unknown_7322_ibits(struct qib_devdata *dd, u64 istat) +{ + u64 kills; + char msg[128]; + + kills = istat & ~QIB_I_BITSEXTANT; + qib_dev_err(dd, + "Clearing reserved interrupt(s) 0x%016llx: %s\n", + (unsigned long long) kills, msg); + qib_write_kreg(dd, kr_intmask, (dd->cspec->int_enable_mask & ~kills)); +} + +/* keep mainline interrupt handler cache-friendly */ +static noinline void unknown_7322_gpio_intr(struct qib_devdata *dd) +{ + u32 gpiostatus; + int handled = 0; + int pidx; + + /* + * Boards for this chip currently don't use GPIO interrupts, + * so clear by writing GPIOstatus to GPIOclear, and complain + * to developer. To avoid endless repeats, clear + * the bits in the mask, since there is some kind of + * programming error or chip problem. + */ + gpiostatus = qib_read_kreg32(dd, kr_gpio_status); + /* + * In theory, writing GPIOstatus to GPIOclear could + * have a bad side-effect on some diagnostic that wanted + * to poll for a status-change, but the various shadows + * make that problematic at best. Diags will just suppress + * all GPIO interrupts during such tests. + */ + qib_write_kreg(dd, kr_gpio_clear, gpiostatus); + /* + * Check for QSFP MOD_PRS changes + * only works for single port if IB1 != pidx1 + */ + for (pidx = 0; pidx < dd->num_pports && (dd->flags & QIB_HAS_QSFP); + ++pidx) { + struct qib_pportdata *ppd; + struct qib_qsfp_data *qd; + u32 mask; + + if (!dd->pport[pidx].link_speed_supported) + continue; + mask = QSFP_GPIO_MOD_PRS_N; + ppd = dd->pport + pidx; + mask <<= (QSFP_GPIO_PORT2_SHIFT * ppd->hw_pidx); + if (gpiostatus & dd->cspec->gpio_mask & mask) { + u64 pins; + + qd = &ppd->cpspec->qsfp_data; + gpiostatus &= ~mask; + pins = qib_read_kreg64(dd, kr_extstatus); + pins >>= SYM_LSB(EXTStatus, GPIOIn); + if (!(pins & mask)) { + ++handled; + qd->t_insert = jiffies; + queue_work(ib_wq, &qd->work); + } + } + } + + if (gpiostatus && !handled) { + const u32 mask = qib_read_kreg32(dd, kr_gpio_mask); + u32 gpio_irq = mask & gpiostatus; + + /* + * Clear any troublemakers, and update chip from shadow + */ + dd->cspec->gpio_mask &= ~gpio_irq; + qib_write_kreg(dd, kr_gpio_mask, dd->cspec->gpio_mask); + } +} + +/* + * Handle errors and unusual events first, separate function + * to improve cache hits for fast path interrupt handling. + */ +static noinline void unlikely_7322_intr(struct qib_devdata *dd, u64 istat) +{ + if (istat & ~QIB_I_BITSEXTANT) + unknown_7322_ibits(dd, istat); + if (istat & QIB_I_GPIO) + unknown_7322_gpio_intr(dd); + if (istat & QIB_I_C_ERROR) { + qib_write_kreg(dd, kr_errmask, 0ULL); + tasklet_schedule(&dd->error_tasklet); + } + if (istat & INT_MASK_P(Err, 0) && dd->rcd[0]) + handle_7322_p_errors(dd->rcd[0]->ppd); + if (istat & INT_MASK_P(Err, 1) && dd->rcd[1]) + handle_7322_p_errors(dd->rcd[1]->ppd); +} + +/* + * Dynamically adjust the rcv int timeout for a context based on incoming + * packet rate. + */ +static void adjust_rcv_timeout(struct qib_ctxtdata *rcd, int npkts) +{ + struct qib_devdata *dd = rcd->dd; + u32 timeout = dd->cspec->rcvavail_timeout[rcd->ctxt]; + + /* + * Dynamically adjust idle timeout on chip + * based on number of packets processed. + */ + if (npkts < rcv_int_count && timeout > 2) + timeout >>= 1; + else if (npkts >= rcv_int_count && timeout < rcv_int_timeout) + timeout = min(timeout << 1, rcv_int_timeout); + else + return; + + dd->cspec->rcvavail_timeout[rcd->ctxt] = timeout; + qib_write_kreg(dd, kr_rcvavailtimeout + rcd->ctxt, timeout); +} + +/* + * This is the main interrupt handler. + * It will normally only be used for low frequency interrupts but may + * have to handle all interrupts if INTx is enabled or fewer than normal + * MSIx interrupts were allocated. + * This routine should ignore the interrupt bits for any of the + * dedicated MSIx handlers. + */ +static irqreturn_t qib_7322intr(int irq, void *data) +{ + struct qib_devdata *dd = data; + irqreturn_t ret; + u64 istat; + u64 ctxtrbits; + u64 rmask; + unsigned i; + u32 npkts; + + if ((dd->flags & (QIB_PRESENT | QIB_BADINTR)) != QIB_PRESENT) { + /* + * This return value is not great, but we do not want the + * interrupt core code to remove our interrupt handler + * because we don't appear to be handling an interrupt + * during a chip reset. + */ + ret = IRQ_HANDLED; + goto bail; + } + + istat = qib_read_kreg64(dd, kr_intstatus); + + if (unlikely(istat == ~0ULL)) { + qib_bad_intrstatus(dd); + qib_dev_err(dd, "Interrupt status all f's, skipping\n"); + /* don't know if it was our interrupt or not */ + ret = IRQ_NONE; + goto bail; + } + + istat &= dd->cspec->main_int_mask; + if (unlikely(!istat)) { + /* already handled, or shared and not us */ + ret = IRQ_NONE; + goto bail; + } + + this_cpu_inc(*dd->int_counter); + + /* handle "errors" of various kinds first, device ahead of port */ + if (unlikely(istat & (~QIB_I_BITSEXTANT | QIB_I_GPIO | + QIB_I_C_ERROR | INT_MASK_P(Err, 0) | + INT_MASK_P(Err, 1)))) + unlikely_7322_intr(dd, istat); + + /* + * Clear the interrupt bits we found set, relatively early, so we + * "know" know the chip will have seen this by the time we process + * the queue, and will re-interrupt if necessary. The processor + * itself won't take the interrupt again until we return. + */ + qib_write_kreg(dd, kr_intclear, istat); + + /* + * Handle kernel receive queues before checking for pio buffers + * available since receives can overflow; piobuf waiters can afford + * a few extra cycles, since they were waiting anyway. + */ + ctxtrbits = istat & (QIB_I_RCVAVAIL_MASK | QIB_I_RCVURG_MASK); + if (ctxtrbits) { + rmask = (1ULL << QIB_I_RCVAVAIL_LSB) | + (1ULL << QIB_I_RCVURG_LSB); + for (i = 0; i < dd->first_user_ctxt; i++) { + if (ctxtrbits & rmask) { + ctxtrbits &= ~rmask; + if (dd->rcd[i]) + qib_kreceive(dd->rcd[i], NULL, &npkts); + } + rmask <<= 1; + } + if (ctxtrbits) { + ctxtrbits = (ctxtrbits >> QIB_I_RCVAVAIL_LSB) | + (ctxtrbits >> QIB_I_RCVURG_LSB); + qib_handle_urcv(dd, ctxtrbits); + } + } + + if (istat & (QIB_I_P_SDMAINT(0) | QIB_I_P_SDMAINT(1))) + sdma_7322_intr(dd, istat); + + if ((istat & QIB_I_SPIOBUFAVAIL) && (dd->flags & QIB_INITTED)) + qib_ib_piobufavail(dd); + + ret = IRQ_HANDLED; +bail: + return ret; +} + +/* + * Dedicated receive packet available interrupt handler. + */ +static irqreturn_t qib_7322pintr(int irq, void *data) +{ + struct qib_ctxtdata *rcd = data; + struct qib_devdata *dd = rcd->dd; + u32 npkts; + + if ((dd->flags & (QIB_PRESENT | QIB_BADINTR)) != QIB_PRESENT) + /* + * This return value is not great, but we do not want the + * interrupt core code to remove our interrupt handler + * because we don't appear to be handling an interrupt + * during a chip reset. + */ + return IRQ_HANDLED; + + this_cpu_inc(*dd->int_counter); + + /* Clear the interrupt bit we expect to be set. */ + qib_write_kreg(dd, kr_intclear, ((1ULL << QIB_I_RCVAVAIL_LSB) | + (1ULL << QIB_I_RCVURG_LSB)) << rcd->ctxt); + + qib_kreceive(rcd, NULL, &npkts); + + return IRQ_HANDLED; +} + +/* + * Dedicated Send buffer available interrupt handler. + */ +static irqreturn_t qib_7322bufavail(int irq, void *data) +{ + struct qib_devdata *dd = data; + + if ((dd->flags & (QIB_PRESENT | QIB_BADINTR)) != QIB_PRESENT) + /* + * This return value is not great, but we do not want the + * interrupt core code to remove our interrupt handler + * because we don't appear to be handling an interrupt + * during a chip reset. + */ + return IRQ_HANDLED; + + this_cpu_inc(*dd->int_counter); + + /* Clear the interrupt bit we expect to be set. */ + qib_write_kreg(dd, kr_intclear, QIB_I_SPIOBUFAVAIL); + + /* qib_ib_piobufavail() will clear the want PIO interrupt if needed */ + if (dd->flags & QIB_INITTED) + qib_ib_piobufavail(dd); + else + qib_wantpiobuf_7322_intr(dd, 0); + + return IRQ_HANDLED; +} + +/* + * Dedicated Send DMA interrupt handler. + */ +static irqreturn_t sdma_intr(int irq, void *data) +{ + struct qib_pportdata *ppd = data; + struct qib_devdata *dd = ppd->dd; + + if ((dd->flags & (QIB_PRESENT | QIB_BADINTR)) != QIB_PRESENT) + /* + * This return value is not great, but we do not want the + * interrupt core code to remove our interrupt handler + * because we don't appear to be handling an interrupt + * during a chip reset. + */ + return IRQ_HANDLED; + + this_cpu_inc(*dd->int_counter); + + /* Clear the interrupt bit we expect to be set. */ + qib_write_kreg(dd, kr_intclear, ppd->hw_pidx ? + INT_MASK_P(SDma, 1) : INT_MASK_P(SDma, 0)); + qib_sdma_intr(ppd); + + return IRQ_HANDLED; +} + +/* + * Dedicated Send DMA idle interrupt handler. + */ +static irqreturn_t sdma_idle_intr(int irq, void *data) +{ + struct qib_pportdata *ppd = data; + struct qib_devdata *dd = ppd->dd; + + if ((dd->flags & (QIB_PRESENT | QIB_BADINTR)) != QIB_PRESENT) + /* + * This return value is not great, but we do not want the + * interrupt core code to remove our interrupt handler + * because we don't appear to be handling an interrupt + * during a chip reset. + */ + return IRQ_HANDLED; + + this_cpu_inc(*dd->int_counter); + + /* Clear the interrupt bit we expect to be set. */ + qib_write_kreg(dd, kr_intclear, ppd->hw_pidx ? + INT_MASK_P(SDmaIdle, 1) : INT_MASK_P(SDmaIdle, 0)); + qib_sdma_intr(ppd); + + return IRQ_HANDLED; +} + +/* + * Dedicated Send DMA progress interrupt handler. + */ +static irqreturn_t sdma_progress_intr(int irq, void *data) +{ + struct qib_pportdata *ppd = data; + struct qib_devdata *dd = ppd->dd; + + if ((dd->flags & (QIB_PRESENT | QIB_BADINTR)) != QIB_PRESENT) + /* + * This return value is not great, but we do not want the + * interrupt core code to remove our interrupt handler + * because we don't appear to be handling an interrupt + * during a chip reset. + */ + return IRQ_HANDLED; + + this_cpu_inc(*dd->int_counter); + + /* Clear the interrupt bit we expect to be set. */ + qib_write_kreg(dd, kr_intclear, ppd->hw_pidx ? + INT_MASK_P(SDmaProgress, 1) : + INT_MASK_P(SDmaProgress, 0)); + qib_sdma_intr(ppd); + + return IRQ_HANDLED; +} + +/* + * Dedicated Send DMA cleanup interrupt handler. + */ +static irqreturn_t sdma_cleanup_intr(int irq, void *data) +{ + struct qib_pportdata *ppd = data; + struct qib_devdata *dd = ppd->dd; + + if ((dd->flags & (QIB_PRESENT | QIB_BADINTR)) != QIB_PRESENT) + /* + * This return value is not great, but we do not want the + * interrupt core code to remove our interrupt handler + * because we don't appear to be handling an interrupt + * during a chip reset. + */ + return IRQ_HANDLED; + + this_cpu_inc(*dd->int_counter); + + /* Clear the interrupt bit we expect to be set. */ + qib_write_kreg(dd, kr_intclear, ppd->hw_pidx ? + INT_MASK_PM(SDmaCleanupDone, 1) : + INT_MASK_PM(SDmaCleanupDone, 0)); + qib_sdma_process_event(ppd, qib_sdma_event_e20_hw_started); + + return IRQ_HANDLED; +} + +#ifdef CONFIG_INFINIBAND_QIB_DCA + +static void reset_dca_notifier(struct qib_devdata *dd, int msixnum) +{ + if (!dd->cspec->msix_entries[msixnum].dca) + return; + + qib_devinfo(dd->pcidev, "Disabling notifier on HCA %d irq %d\n", + dd->unit, pci_irq_vector(dd->pcidev, msixnum)); + irq_set_affinity_notifier(pci_irq_vector(dd->pcidev, msixnum), NULL); + dd->cspec->msix_entries[msixnum].notifier = NULL; +} + +static void setup_dca_notifier(struct qib_devdata *dd, int msixnum) +{ + struct qib_msix_entry *m = &dd->cspec->msix_entries[msixnum]; + struct qib_irq_notify *n; + + if (!m->dca) + return; + n = kzalloc(sizeof(*n), GFP_KERNEL); + if (n) { + int ret; + + m->notifier = n; + n->notify.irq = pci_irq_vector(dd->pcidev, msixnum); + n->notify.notify = qib_irq_notifier_notify; + n->notify.release = qib_irq_notifier_release; + n->arg = m->arg; + n->rcv = m->rcv; + qib_devinfo(dd->pcidev, + "set notifier irq %d rcv %d notify %p\n", + n->notify.irq, n->rcv, &n->notify); + ret = irq_set_affinity_notifier( + n->notify.irq, + &n->notify); + if (ret) { + m->notifier = NULL; + kfree(n); + } + } +} + +#endif + +/* + * Set up our chip-specific interrupt handler. + * The interrupt type has already been setup, so + * we just need to do the registration and error checking. + * If we are using MSIx interrupts, we may fall back to + * INTx later, if the interrupt handler doesn't get called + * within 1/2 second (see verify_interrupt()). + */ +static void qib_setup_7322_interrupt(struct qib_devdata *dd, int clearpend) +{ + int ret, i, msixnum; + u64 redirect[6]; + u64 mask; + const struct cpumask *local_mask; + int firstcpu, secondcpu = 0, currrcvcpu = 0; + + if (!dd->num_pports) + return; + + if (clearpend) { + /* + * if not switching interrupt types, be sure interrupts are + * disabled, and then clear anything pending at this point, + * because we are starting clean. + */ + qib_7322_set_intr_state(dd, 0); + + /* clear the reset error, init error/hwerror mask */ + qib_7322_init_hwerrors(dd); + + /* clear any interrupt bits that might be set */ + qib_write_kreg(dd, kr_intclear, ~0ULL); + + /* make sure no pending MSIx intr, and clear diag reg */ + qib_write_kreg(dd, kr_intgranted, ~0ULL); + qib_write_kreg(dd, kr_vecclr_wo_int, ~0ULL); + } + + if (!dd->cspec->num_msix_entries) { + /* Try to get INTx interrupt */ +try_intx: + ret = pci_request_irq(dd->pcidev, 0, qib_7322intr, NULL, dd, + QIB_DRV_NAME); + if (ret) { + qib_dev_err( + dd, + "Couldn't setup INTx interrupt (irq=%d): %d\n", + pci_irq_vector(dd->pcidev, 0), ret); + return; + } + dd->cspec->main_int_mask = ~0ULL; + return; + } + + /* Try to get MSIx interrupts */ + memset(redirect, 0, sizeof(redirect)); + mask = ~0ULL; + msixnum = 0; + local_mask = cpumask_of_pcibus(dd->pcidev->bus); + firstcpu = cpumask_first(local_mask); + if (firstcpu >= nr_cpu_ids || + cpumask_weight(local_mask) == num_online_cpus()) { + local_mask = topology_core_cpumask(0); + firstcpu = cpumask_first(local_mask); + } + if (firstcpu < nr_cpu_ids) { + secondcpu = cpumask_next(firstcpu, local_mask); + if (secondcpu >= nr_cpu_ids) + secondcpu = firstcpu; + currrcvcpu = secondcpu; + } + for (i = 0; msixnum < dd->cspec->num_msix_entries; i++) { + irq_handler_t handler; + void *arg; + int lsb, reg, sh; +#ifdef CONFIG_INFINIBAND_QIB_DCA + int dca = 0; +#endif + if (i < ARRAY_SIZE(irq_table)) { + if (irq_table[i].port) { + /* skip if for a non-configured port */ + if (irq_table[i].port > dd->num_pports) + continue; + arg = dd->pport + irq_table[i].port - 1; + } else + arg = dd; +#ifdef CONFIG_INFINIBAND_QIB_DCA + dca = irq_table[i].dca; +#endif + lsb = irq_table[i].lsb; + handler = irq_table[i].handler; + ret = pci_request_irq(dd->pcidev, msixnum, handler, + NULL, arg, QIB_DRV_NAME "%d%s", + dd->unit, + irq_table[i].name); + } else { + unsigned ctxt; + + ctxt = i - ARRAY_SIZE(irq_table); + /* per krcvq context receive interrupt */ + arg = dd->rcd[ctxt]; + if (!arg) + continue; + if (qib_krcvq01_no_msi && ctxt < 2) + continue; +#ifdef CONFIG_INFINIBAND_QIB_DCA + dca = 1; +#endif + lsb = QIB_I_RCVAVAIL_LSB + ctxt; + handler = qib_7322pintr; + ret = pci_request_irq(dd->pcidev, msixnum, handler, + NULL, arg, + QIB_DRV_NAME "%d (kctx)", + dd->unit); + } + + if (ret) { + /* + * Shouldn't happen since the enable said we could + * have as many as we are trying to setup here. + */ + qib_dev_err(dd, + "Couldn't setup MSIx interrupt (vec=%d, irq=%d): %d\n", + msixnum, + pci_irq_vector(dd->pcidev, msixnum), + ret); + qib_7322_free_irq(dd); + pci_alloc_irq_vectors(dd->pcidev, 1, 1, + PCI_IRQ_LEGACY); + goto try_intx; + } + dd->cspec->msix_entries[msixnum].arg = arg; +#ifdef CONFIG_INFINIBAND_QIB_DCA + dd->cspec->msix_entries[msixnum].dca = dca; + dd->cspec->msix_entries[msixnum].rcv = + handler == qib_7322pintr; +#endif + if (lsb >= 0) { + reg = lsb / IBA7322_REDIRECT_VEC_PER_REG; + sh = (lsb % IBA7322_REDIRECT_VEC_PER_REG) * + SYM_LSB(IntRedirect0, vec1); + mask &= ~(1ULL << lsb); + redirect[reg] |= ((u64) msixnum) << sh; + } + qib_read_kreg64(dd, 2 * msixnum + 1 + + (QIB_7322_MsixTable_OFFS / sizeof(u64))); + if (firstcpu < nr_cpu_ids && + zalloc_cpumask_var( + &dd->cspec->msix_entries[msixnum].mask, + GFP_KERNEL)) { + if (handler == qib_7322pintr) { + cpumask_set_cpu(currrcvcpu, + dd->cspec->msix_entries[msixnum].mask); + currrcvcpu = cpumask_next(currrcvcpu, + local_mask); + if (currrcvcpu >= nr_cpu_ids) + currrcvcpu = secondcpu; + } else { + cpumask_set_cpu(firstcpu, + dd->cspec->msix_entries[msixnum].mask); + } + irq_set_affinity_hint( + pci_irq_vector(dd->pcidev, msixnum), + dd->cspec->msix_entries[msixnum].mask); + } + msixnum++; + } + /* Initialize the vector mapping */ + for (i = 0; i < ARRAY_SIZE(redirect); i++) + qib_write_kreg(dd, kr_intredirect + i, redirect[i]); + dd->cspec->main_int_mask = mask; + tasklet_setup(&dd->error_tasklet, qib_error_tasklet); +} + +/** + * qib_7322_boardname - fill in the board name and note features + * @dd: the qlogic_ib device + * + * info will be based on the board revision register + */ +static unsigned qib_7322_boardname(struct qib_devdata *dd) +{ + /* Will need enumeration of board-types here */ + u32 boardid; + unsigned int features = DUAL_PORT_CAP; + + boardid = SYM_FIELD(dd->revision, Revision, BoardID); + + switch (boardid) { + case 0: + dd->boardname = "InfiniPath_QLE7342_Emulation"; + break; + case 1: + dd->boardname = "InfiniPath_QLE7340"; + dd->flags |= QIB_HAS_QSFP; + features = PORT_SPD_CAP; + break; + case 2: + dd->boardname = "InfiniPath_QLE7342"; + dd->flags |= QIB_HAS_QSFP; + break; + case 3: + dd->boardname = "InfiniPath_QMI7342"; + break; + case 4: + dd->boardname = "InfiniPath_Unsupported7342"; + qib_dev_err(dd, "Unsupported version of QMH7342\n"); + features = 0; + break; + case BOARD_QMH7342: + dd->boardname = "InfiniPath_QMH7342"; + features = 0x24; + break; + case BOARD_QME7342: + dd->boardname = "InfiniPath_QME7342"; + break; + case 8: + dd->boardname = "InfiniPath_QME7362"; + dd->flags |= QIB_HAS_QSFP; + break; + case BOARD_QMH7360: + dd->boardname = "Intel IB QDR 1P FLR-QSFP Adptr"; + dd->flags |= QIB_HAS_QSFP; + break; + case 15: + dd->boardname = "InfiniPath_QLE7342_TEST"; + dd->flags |= QIB_HAS_QSFP; + break; + default: + dd->boardname = "InfiniPath_QLE73xy_UNKNOWN"; + qib_dev_err(dd, "Unknown 7322 board type %u\n", boardid); + break; + } + dd->board_atten = 1; /* index into txdds_Xdr */ + + snprintf(dd->boardversion, sizeof(dd->boardversion), + "ChipABI %u.%u, %s, InfiniPath%u %u.%u, SW Compat %u\n", + QIB_CHIP_VERS_MAJ, QIB_CHIP_VERS_MIN, dd->boardname, + (unsigned int)SYM_FIELD(dd->revision, Revision_R, Arch), + dd->majrev, dd->minrev, + (unsigned int)SYM_FIELD(dd->revision, Revision_R, SW)); + + if (qib_singleport && (features >> PORT_SPD_CAP_SHIFT) & PORT_SPD_CAP) { + qib_devinfo(dd->pcidev, + "IB%u: Forced to single port mode by module parameter\n", + dd->unit); + features &= PORT_SPD_CAP; + } + + return features; +} + +/* + * This routine sleeps, so it can only be called from user context, not + * from interrupt context. + */ +static int qib_do_7322_reset(struct qib_devdata *dd) +{ + u64 val; + u64 *msix_vecsave = NULL; + int i, msix_entries, ret = 1; + u16 cmdval; + u8 int_line, clinesz; + unsigned long flags; + + /* Use dev_err so it shows up in logs, etc. */ + qib_dev_err(dd, "Resetting InfiniPath unit %u\n", dd->unit); + + qib_pcie_getcmd(dd, &cmdval, &int_line, &clinesz); + + msix_entries = dd->cspec->num_msix_entries; + + /* no interrupts till re-initted */ + qib_7322_set_intr_state(dd, 0); + + qib_7322_free_irq(dd); + + if (msix_entries) { + /* can be up to 512 bytes, too big for stack */ + msix_vecsave = kmalloc_array(2 * dd->cspec->num_msix_entries, + sizeof(u64), + GFP_KERNEL); + } + + /* + * Core PCI (as of 2.6.18) doesn't save or rewrite the full vector + * info that is set up by the BIOS, so we have to save and restore + * it ourselves. There is some risk something could change it, + * after we save it, but since we have disabled the MSIx, it + * shouldn't be touched... + */ + for (i = 0; i < msix_entries; i++) { + u64 vecaddr, vecdata; + + vecaddr = qib_read_kreg64(dd, 2 * i + + (QIB_7322_MsixTable_OFFS / sizeof(u64))); + vecdata = qib_read_kreg64(dd, 1 + 2 * i + + (QIB_7322_MsixTable_OFFS / sizeof(u64))); + if (msix_vecsave) { + msix_vecsave[2 * i] = vecaddr; + /* save it without the masked bit set */ + msix_vecsave[1 + 2 * i] = vecdata & ~0x100000000ULL; + } + } + + dd->pport->cpspec->ibdeltainprog = 0; + dd->pport->cpspec->ibsymdelta = 0; + dd->pport->cpspec->iblnkerrdelta = 0; + dd->pport->cpspec->ibmalfdelta = 0; + /* so we check interrupts work again */ + dd->z_int_counter = qib_int_counter(dd); + + /* + * Keep chip from being accessed until we are ready. Use + * writeq() directly, to allow the write even though QIB_PRESENT + * isn't set. + */ + dd->flags &= ~(QIB_INITTED | QIB_PRESENT | QIB_BADINTR); + dd->flags |= QIB_DOING_RESET; + val = dd->control | QLOGIC_IB_C_RESET; + writeq(val, &dd->kregbase[kr_control]); + + for (i = 1; i <= 5; i++) { + /* + * Allow MBIST, etc. to complete; longer on each retry. + * We sometimes get machine checks from bus timeout if no + * response, so for now, make it *really* long. + */ + msleep(1000 + (1 + i) * 3000); + + qib_pcie_reenable(dd, cmdval, int_line, clinesz); + + /* + * Use readq directly, so we don't need to mark it as PRESENT + * until we get a successful indication that all is well. + */ + val = readq(&dd->kregbase[kr_revision]); + if (val == dd->revision) + break; + if (i == 5) { + qib_dev_err(dd, + "Failed to initialize after reset, unusable\n"); + ret = 0; + goto bail; + } + } + + dd->flags |= QIB_PRESENT; /* it's back */ + + if (msix_entries) { + /* restore the MSIx vector address and data if saved above */ + for (i = 0; i < msix_entries; i++) { + if (!msix_vecsave || !msix_vecsave[2 * i]) + continue; + qib_write_kreg(dd, 2 * i + + (QIB_7322_MsixTable_OFFS / sizeof(u64)), + msix_vecsave[2 * i]); + qib_write_kreg(dd, 1 + 2 * i + + (QIB_7322_MsixTable_OFFS / sizeof(u64)), + msix_vecsave[1 + 2 * i]); + } + } + + /* initialize the remaining registers. */ + for (i = 0; i < dd->num_pports; ++i) + write_7322_init_portregs(&dd->pport[i]); + write_7322_initregs(dd); + + if (qib_pcie_params(dd, dd->lbus_width, &msix_entries)) + qib_dev_err(dd, + "Reset failed to setup PCIe or interrupts; continuing anyway\n"); + + dd->cspec->num_msix_entries = msix_entries; + qib_setup_7322_interrupt(dd, 1); + + for (i = 0; i < dd->num_pports; ++i) { + struct qib_pportdata *ppd = &dd->pport[i]; + + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags |= QIBL_IB_FORCE_NOTIFY; + ppd->lflags &= ~QIBL_IB_AUTONEG_FAILED; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + } + +bail: + dd->flags &= ~QIB_DOING_RESET; /* OK or not, no longer resetting */ + kfree(msix_vecsave); + return ret; +} + +/** + * qib_7322_put_tid - write a TID to the chip + * @dd: the qlogic_ib device + * @tidptr: pointer to the expected TID (in chip) to update + * @type: 0 for eager, 1 for expected + * @pa: physical address of in memory buffer; tidinvalid if freeing + */ +static void qib_7322_put_tid(struct qib_devdata *dd, u64 __iomem *tidptr, + u32 type, unsigned long pa) +{ + if (!(dd->flags & QIB_PRESENT)) + return; + if (pa != dd->tidinvalid) { + u64 chippa = pa >> IBA7322_TID_PA_SHIFT; + + /* paranoia checks */ + if (pa != (chippa << IBA7322_TID_PA_SHIFT)) { + qib_dev_err(dd, "Physaddr %lx not 2KB aligned!\n", + pa); + return; + } + if (chippa >= (1UL << IBA7322_TID_SZ_SHIFT)) { + qib_dev_err(dd, + "Physical page address 0x%lx larger than supported\n", + pa); + return; + } + + if (type == RCVHQ_RCV_TYPE_EAGER) + chippa |= dd->tidtemplate; + else /* for now, always full 4KB page */ + chippa |= IBA7322_TID_SZ_4K; + pa = chippa; + } + writeq(pa, tidptr); +} + +/** + * qib_7322_clear_tids - clear all TID entries for a ctxt, expected and eager + * @dd: the qlogic_ib device + * @rcd: the ctxt + * + * clear all TID entries for a ctxt, expected and eager. + * Used from qib_close(). + */ +static void qib_7322_clear_tids(struct qib_devdata *dd, + struct qib_ctxtdata *rcd) +{ + u64 __iomem *tidbase; + unsigned long tidinv; + u32 ctxt; + int i; + + if (!dd->kregbase || !rcd) + return; + + ctxt = rcd->ctxt; + + tidinv = dd->tidinvalid; + tidbase = (u64 __iomem *) + ((char __iomem *) dd->kregbase + + dd->rcvtidbase + + ctxt * dd->rcvtidcnt * sizeof(*tidbase)); + + for (i = 0; i < dd->rcvtidcnt; i++) + qib_7322_put_tid(dd, &tidbase[i], RCVHQ_RCV_TYPE_EXPECTED, + tidinv); + + tidbase = (u64 __iomem *) + ((char __iomem *) dd->kregbase + + dd->rcvegrbase + + rcd->rcvegr_tid_base * sizeof(*tidbase)); + + for (i = 0; i < rcd->rcvegrcnt; i++) + qib_7322_put_tid(dd, &tidbase[i], RCVHQ_RCV_TYPE_EAGER, + tidinv); +} + +/** + * qib_7322_tidtemplate - setup constants for TID updates + * @dd: the qlogic_ib device + * + * We setup stuff that we use a lot, to avoid calculating each time + */ +static void qib_7322_tidtemplate(struct qib_devdata *dd) +{ + /* + * For now, we always allocate 4KB buffers (at init) so we can + * receive max size packets. We may want a module parameter to + * specify 2KB or 4KB and/or make it per port instead of per device + * for those who want to reduce memory footprint. Note that the + * rcvhdrentsize size must be large enough to hold the largest + * IB header (currently 96 bytes) that we expect to handle (plus of + * course the 2 dwords of RHF). + */ + if (dd->rcvegrbufsize == 2048) + dd->tidtemplate = IBA7322_TID_SZ_2K; + else if (dd->rcvegrbufsize == 4096) + dd->tidtemplate = IBA7322_TID_SZ_4K; + dd->tidinvalid = 0; +} + +/** + * qib_7322_get_base_info - set chip-specific flags for user code + * @rcd: the qlogic_ib ctxt + * @kinfo: qib_base_info pointer + * + * We set the PCIE flag because the lower bandwidth on PCIe vs + * HyperTransport can affect some user packet algorithims. + */ + +static int qib_7322_get_base_info(struct qib_ctxtdata *rcd, + struct qib_base_info *kinfo) +{ + kinfo->spi_runtime_flags |= QIB_RUNTIME_CTXT_MSB_IN_QP | + QIB_RUNTIME_PCIE | QIB_RUNTIME_NODMA_RTAIL | + QIB_RUNTIME_HDRSUPP | QIB_RUNTIME_SDMA; + if (rcd->dd->cspec->r1) + kinfo->spi_runtime_flags |= QIB_RUNTIME_RCHK; + if (rcd->dd->flags & QIB_USE_SPCL_TRIG) + kinfo->spi_runtime_flags |= QIB_RUNTIME_SPECIAL_TRIGGER; + + return 0; +} + +static struct qib_message_header * +qib_7322_get_msgheader(struct qib_devdata *dd, __le32 *rhf_addr) +{ + u32 offset = qib_hdrget_offset(rhf_addr); + + return (struct qib_message_header *) + (rhf_addr - dd->rhf_offset + offset); +} + +/* + * Configure number of contexts. + */ +static void qib_7322_config_ctxts(struct qib_devdata *dd) +{ + unsigned long flags; + u32 nchipctxts; + + nchipctxts = qib_read_kreg32(dd, kr_contextcnt); + dd->cspec->numctxts = nchipctxts; + if (qib_n_krcv_queues > 1 && dd->num_pports) { + dd->first_user_ctxt = NUM_IB_PORTS + + (qib_n_krcv_queues - 1) * dd->num_pports; + if (dd->first_user_ctxt > nchipctxts) + dd->first_user_ctxt = nchipctxts; + dd->n_krcv_queues = dd->first_user_ctxt / dd->num_pports; + } else { + dd->first_user_ctxt = NUM_IB_PORTS; + dd->n_krcv_queues = 1; + } + + if (!qib_cfgctxts) { + int nctxts = dd->first_user_ctxt + num_online_cpus(); + + if (nctxts <= 6) + dd->ctxtcnt = 6; + else if (nctxts <= 10) + dd->ctxtcnt = 10; + else if (nctxts <= nchipctxts) + dd->ctxtcnt = nchipctxts; + } else if (qib_cfgctxts < dd->num_pports) + dd->ctxtcnt = dd->num_pports; + else if (qib_cfgctxts <= nchipctxts) + dd->ctxtcnt = qib_cfgctxts; + if (!dd->ctxtcnt) /* none of the above, set to max */ + dd->ctxtcnt = nchipctxts; + + /* + * Chip can be configured for 6, 10, or 18 ctxts, and choice + * affects number of eager TIDs per ctxt (1K, 2K, 4K). + * Lock to be paranoid about later motion, etc. + */ + spin_lock_irqsave(&dd->cspec->rcvmod_lock, flags); + if (dd->ctxtcnt > 10) + dd->rcvctrl |= 2ULL << SYM_LSB(RcvCtrl, ContextCfg); + else if (dd->ctxtcnt > 6) + dd->rcvctrl |= 1ULL << SYM_LSB(RcvCtrl, ContextCfg); + /* else configure for default 6 receive ctxts */ + + /* The XRC opcode is 5. */ + dd->rcvctrl |= 5ULL << SYM_LSB(RcvCtrl, XrcTypeCode); + + /* + * RcvCtrl *must* be written here so that the + * chip understands how to change rcvegrcnt below. + */ + qib_write_kreg(dd, kr_rcvctrl, dd->rcvctrl); + spin_unlock_irqrestore(&dd->cspec->rcvmod_lock, flags); + + /* kr_rcvegrcnt changes based on the number of contexts enabled */ + dd->cspec->rcvegrcnt = qib_read_kreg32(dd, kr_rcvegrcnt); + if (qib_rcvhdrcnt) + dd->rcvhdrcnt = max(dd->cspec->rcvegrcnt, qib_rcvhdrcnt); + else + dd->rcvhdrcnt = 2 * max(dd->cspec->rcvegrcnt, + dd->num_pports > 1 ? 1024U : 2048U); +} + +static int qib_7322_get_ib_cfg(struct qib_pportdata *ppd, int which) +{ + + int lsb, ret = 0; + u64 maskr; /* right-justified mask */ + + switch (which) { + + case QIB_IB_CFG_LWID_ENB: /* Get allowed Link-width */ + ret = ppd->link_width_enabled; + goto done; + + case QIB_IB_CFG_LWID: /* Get currently active Link-width */ + ret = ppd->link_width_active; + goto done; + + case QIB_IB_CFG_SPD_ENB: /* Get allowed Link speeds */ + ret = ppd->link_speed_enabled; + goto done; + + case QIB_IB_CFG_SPD: /* Get current Link spd */ + ret = ppd->link_speed_active; + goto done; + + case QIB_IB_CFG_RXPOL_ENB: /* Get Auto-RX-polarity enable */ + lsb = SYM_LSB(IBCCtrlB_0, IB_POLARITY_REV_SUPP); + maskr = SYM_RMASK(IBCCtrlB_0, IB_POLARITY_REV_SUPP); + break; + + case QIB_IB_CFG_LREV_ENB: /* Get Auto-Lane-reversal enable */ + lsb = SYM_LSB(IBCCtrlB_0, IB_LANE_REV_SUPPORTED); + maskr = SYM_RMASK(IBCCtrlB_0, IB_LANE_REV_SUPPORTED); + break; + + case QIB_IB_CFG_LINKLATENCY: + ret = qib_read_kreg_port(ppd, krp_ibcstatus_b) & + SYM_MASK(IBCStatusB_0, LinkRoundTripLatency); + goto done; + + case QIB_IB_CFG_OP_VLS: + ret = ppd->vls_operational; + goto done; + + case QIB_IB_CFG_VL_HIGH_CAP: + ret = 16; + goto done; + + case QIB_IB_CFG_VL_LOW_CAP: + ret = 16; + goto done; + + case QIB_IB_CFG_OVERRUN_THRESH: /* IB overrun threshold */ + ret = SYM_FIELD(ppd->cpspec->ibcctrl_a, IBCCtrlA_0, + OverrunThreshold); + goto done; + + case QIB_IB_CFG_PHYERR_THRESH: /* IB PHY error threshold */ + ret = SYM_FIELD(ppd->cpspec->ibcctrl_a, IBCCtrlA_0, + PhyerrThreshold); + goto done; + + case QIB_IB_CFG_LINKDEFAULT: /* IB link default (sleep/poll) */ + /* will only take effect when the link state changes */ + ret = (ppd->cpspec->ibcctrl_a & + SYM_MASK(IBCCtrlA_0, LinkDownDefaultState)) ? + IB_LINKINITCMD_SLEEP : IB_LINKINITCMD_POLL; + goto done; + + case QIB_IB_CFG_HRTBT: /* Get Heartbeat off/enable/auto */ + lsb = IBA7322_IBC_HRTBT_LSB; + maskr = IBA7322_IBC_HRTBT_RMASK; /* OR of AUTO and ENB */ + break; + + case QIB_IB_CFG_PMA_TICKS: + /* + * 0x00 = 10x link transfer rate or 4 nsec. for 2.5Gbs + * Since the clock is always 250MHz, the value is 3, 1 or 0. + */ + if (ppd->link_speed_active == QIB_IB_QDR) + ret = 3; + else if (ppd->link_speed_active == QIB_IB_DDR) + ret = 1; + else + ret = 0; + goto done; + + default: + ret = -EINVAL; + goto done; + } + ret = (int)((ppd->cpspec->ibcctrl_b >> lsb) & maskr); +done: + return ret; +} + +/* + * Below again cribbed liberally from older version. Do not lean + * heavily on it. + */ +#define IBA7322_IBC_DLIDLMC_SHIFT QIB_7322_IBCCtrlB_0_IB_DLID_LSB +#define IBA7322_IBC_DLIDLMC_MASK (QIB_7322_IBCCtrlB_0_IB_DLID_RMASK \ + | (QIB_7322_IBCCtrlB_0_IB_DLID_MASK_RMASK << 16)) + +static int qib_7322_set_ib_cfg(struct qib_pportdata *ppd, int which, u32 val) +{ + struct qib_devdata *dd = ppd->dd; + u64 maskr; /* right-justified mask */ + int lsb, ret = 0; + u16 lcmd, licmd; + unsigned long flags; + + switch (which) { + case QIB_IB_CFG_LIDLMC: + /* + * Set LID and LMC. Combined to avoid possible hazard + * caller puts LMC in 16MSbits, DLID in 16LSbits of val + */ + lsb = IBA7322_IBC_DLIDLMC_SHIFT; + maskr = IBA7322_IBC_DLIDLMC_MASK; + /* + * For header-checking, the SLID in the packet will + * be masked with SendIBSLMCMask, and compared + * with SendIBSLIDAssignMask. Make sure we do not + * set any bits not covered by the mask, or we get + * false-positives. + */ + qib_write_kreg_port(ppd, krp_sendslid, + val & (val >> 16) & SendIBSLIDAssignMask); + qib_write_kreg_port(ppd, krp_sendslidmask, + (val >> 16) & SendIBSLMCMask); + break; + + case QIB_IB_CFG_LWID_ENB: /* set allowed Link-width */ + ppd->link_width_enabled = val; + /* convert IB value to chip register value */ + if (val == IB_WIDTH_1X) + val = 0; + else if (val == IB_WIDTH_4X) + val = 1; + else + val = 3; + maskr = SYM_RMASK(IBCCtrlB_0, IB_NUM_CHANNELS); + lsb = SYM_LSB(IBCCtrlB_0, IB_NUM_CHANNELS); + break; + + case QIB_IB_CFG_SPD_ENB: /* set allowed Link speeds */ + /* + * As with width, only write the actual register if the + * link is currently down, otherwise takes effect on next + * link change. Since setting is being explicitly requested + * (via MAD or sysfs), clear autoneg failure status if speed + * autoneg is enabled. + */ + ppd->link_speed_enabled = val; + val <<= IBA7322_IBC_SPEED_LSB; + maskr = IBA7322_IBC_SPEED_MASK | IBA7322_IBC_IBTA_1_2_MASK | + IBA7322_IBC_MAX_SPEED_MASK; + if (val & (val - 1)) { + /* Muliple speeds enabled */ + val |= IBA7322_IBC_IBTA_1_2_MASK | + IBA7322_IBC_MAX_SPEED_MASK; + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~QIBL_IB_AUTONEG_FAILED; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + } else if (val & IBA7322_IBC_SPEED_QDR) + val |= IBA7322_IBC_IBTA_1_2_MASK; + /* IBTA 1.2 mode + min/max + speed bits are contiguous */ + lsb = SYM_LSB(IBCCtrlB_0, IB_ENHANCED_MODE); + break; + + case QIB_IB_CFG_RXPOL_ENB: /* set Auto-RX-polarity enable */ + lsb = SYM_LSB(IBCCtrlB_0, IB_POLARITY_REV_SUPP); + maskr = SYM_RMASK(IBCCtrlB_0, IB_POLARITY_REV_SUPP); + break; + + case QIB_IB_CFG_LREV_ENB: /* set Auto-Lane-reversal enable */ + lsb = SYM_LSB(IBCCtrlB_0, IB_LANE_REV_SUPPORTED); + maskr = SYM_RMASK(IBCCtrlB_0, IB_LANE_REV_SUPPORTED); + break; + + case QIB_IB_CFG_OVERRUN_THRESH: /* IB overrun threshold */ + maskr = SYM_FIELD(ppd->cpspec->ibcctrl_a, IBCCtrlA_0, + OverrunThreshold); + if (maskr != val) { + ppd->cpspec->ibcctrl_a &= + ~SYM_MASK(IBCCtrlA_0, OverrunThreshold); + ppd->cpspec->ibcctrl_a |= (u64) val << + SYM_LSB(IBCCtrlA_0, OverrunThreshold); + qib_write_kreg_port(ppd, krp_ibcctrl_a, + ppd->cpspec->ibcctrl_a); + qib_write_kreg(dd, kr_scratch, 0ULL); + } + goto bail; + + case QIB_IB_CFG_PHYERR_THRESH: /* IB PHY error threshold */ + maskr = SYM_FIELD(ppd->cpspec->ibcctrl_a, IBCCtrlA_0, + PhyerrThreshold); + if (maskr != val) { + ppd->cpspec->ibcctrl_a &= + ~SYM_MASK(IBCCtrlA_0, PhyerrThreshold); + ppd->cpspec->ibcctrl_a |= (u64) val << + SYM_LSB(IBCCtrlA_0, PhyerrThreshold); + qib_write_kreg_port(ppd, krp_ibcctrl_a, + ppd->cpspec->ibcctrl_a); + qib_write_kreg(dd, kr_scratch, 0ULL); + } + goto bail; + + case QIB_IB_CFG_PKEYS: /* update pkeys */ + maskr = (u64) ppd->pkeys[0] | ((u64) ppd->pkeys[1] << 16) | + ((u64) ppd->pkeys[2] << 32) | + ((u64) ppd->pkeys[3] << 48); + qib_write_kreg_port(ppd, krp_partitionkey, maskr); + goto bail; + + case QIB_IB_CFG_LINKDEFAULT: /* IB link default (sleep/poll) */ + /* will only take effect when the link state changes */ + if (val == IB_LINKINITCMD_POLL) + ppd->cpspec->ibcctrl_a &= + ~SYM_MASK(IBCCtrlA_0, LinkDownDefaultState); + else /* SLEEP */ + ppd->cpspec->ibcctrl_a |= + SYM_MASK(IBCCtrlA_0, LinkDownDefaultState); + qib_write_kreg_port(ppd, krp_ibcctrl_a, ppd->cpspec->ibcctrl_a); + qib_write_kreg(dd, kr_scratch, 0ULL); + goto bail; + + case QIB_IB_CFG_MTU: /* update the MTU in IBC */ + /* + * Update our housekeeping variables, and set IBC max + * size, same as init code; max IBC is max we allow in + * buffer, less the qword pbc, plus 1 for ICRC, in dwords + * Set even if it's unchanged, print debug message only + * on changes. + */ + val = (ppd->ibmaxlen >> 2) + 1; + ppd->cpspec->ibcctrl_a &= ~SYM_MASK(IBCCtrlA_0, MaxPktLen); + ppd->cpspec->ibcctrl_a |= (u64)val << + SYM_LSB(IBCCtrlA_0, MaxPktLen); + qib_write_kreg_port(ppd, krp_ibcctrl_a, + ppd->cpspec->ibcctrl_a); + qib_write_kreg(dd, kr_scratch, 0ULL); + goto bail; + + case QIB_IB_CFG_LSTATE: /* set the IB link state */ + switch (val & 0xffff0000) { + case IB_LINKCMD_DOWN: + lcmd = QLOGIC_IB_IBCC_LINKCMD_DOWN; + ppd->cpspec->ibmalfusesnap = 1; + ppd->cpspec->ibmalfsnap = read_7322_creg32_port(ppd, + crp_errlink); + if (!ppd->cpspec->ibdeltainprog && + qib_compat_ddr_negotiate) { + ppd->cpspec->ibdeltainprog = 1; + ppd->cpspec->ibsymsnap = + read_7322_creg32_port(ppd, + crp_ibsymbolerr); + ppd->cpspec->iblnkerrsnap = + read_7322_creg32_port(ppd, + crp_iblinkerrrecov); + } + break; + + case IB_LINKCMD_ARMED: + lcmd = QLOGIC_IB_IBCC_LINKCMD_ARMED; + if (ppd->cpspec->ibmalfusesnap) { + ppd->cpspec->ibmalfusesnap = 0; + ppd->cpspec->ibmalfdelta += + read_7322_creg32_port(ppd, + crp_errlink) - + ppd->cpspec->ibmalfsnap; + } + break; + + case IB_LINKCMD_ACTIVE: + lcmd = QLOGIC_IB_IBCC_LINKCMD_ACTIVE; + break; + + default: + ret = -EINVAL; + qib_dev_err(dd, "bad linkcmd req 0x%x\n", val >> 16); + goto bail; + } + switch (val & 0xffff) { + case IB_LINKINITCMD_NOP: + licmd = 0; + break; + + case IB_LINKINITCMD_POLL: + licmd = QLOGIC_IB_IBCC_LINKINITCMD_POLL; + break; + + case IB_LINKINITCMD_SLEEP: + licmd = QLOGIC_IB_IBCC_LINKINITCMD_SLEEP; + break; + + case IB_LINKINITCMD_DISABLE: + licmd = QLOGIC_IB_IBCC_LINKINITCMD_DISABLE; + ppd->cpspec->chase_end = 0; + /* + * stop state chase counter and timer, if running. + * wait forpending timer, but don't clear .data (ppd)! + */ + if (ppd->cpspec->chase_timer.expires) { + del_timer_sync(&ppd->cpspec->chase_timer); + ppd->cpspec->chase_timer.expires = 0; + } + break; + + default: + ret = -EINVAL; + qib_dev_err(dd, "bad linkinitcmd req 0x%x\n", + val & 0xffff); + goto bail; + } + qib_set_ib_7322_lstate(ppd, lcmd, licmd); + goto bail; + + case QIB_IB_CFG_OP_VLS: + if (ppd->vls_operational != val) { + ppd->vls_operational = val; + set_vls(ppd); + } + goto bail; + + case QIB_IB_CFG_VL_HIGH_LIMIT: + qib_write_kreg_port(ppd, krp_highprio_limit, val); + goto bail; + + case QIB_IB_CFG_HRTBT: /* set Heartbeat off/enable/auto */ + if (val > 3) { + ret = -EINVAL; + goto bail; + } + lsb = IBA7322_IBC_HRTBT_LSB; + maskr = IBA7322_IBC_HRTBT_RMASK; /* OR of AUTO and ENB */ + break; + + case QIB_IB_CFG_PORT: + /* val is the port number of the switch we are connected to. */ + if (ppd->dd->cspec->r1) { + cancel_delayed_work(&ppd->cpspec->ipg_work); + ppd->cpspec->ipg_tries = 0; + } + goto bail; + + default: + ret = -EINVAL; + goto bail; + } + ppd->cpspec->ibcctrl_b &= ~(maskr << lsb); + ppd->cpspec->ibcctrl_b |= (((u64) val & maskr) << lsb); + qib_write_kreg_port(ppd, krp_ibcctrl_b, ppd->cpspec->ibcctrl_b); + qib_write_kreg(dd, kr_scratch, 0); +bail: + return ret; +} + +static int qib_7322_set_loopback(struct qib_pportdata *ppd, const char *what) +{ + int ret = 0; + u64 val, ctrlb; + + /* only IBC loopback, may add serdes and xgxs loopbacks later */ + if (!strncmp(what, "ibc", 3)) { + ppd->cpspec->ibcctrl_a |= SYM_MASK(IBCCtrlA_0, + Loopback); + val = 0; /* disable heart beat, so link will come up */ + qib_devinfo(ppd->dd->pcidev, "Enabling IB%u:%u IBC loopback\n", + ppd->dd->unit, ppd->port); + } else if (!strncmp(what, "off", 3)) { + ppd->cpspec->ibcctrl_a &= ~SYM_MASK(IBCCtrlA_0, + Loopback); + /* enable heart beat again */ + val = IBA7322_IBC_HRTBT_RMASK << IBA7322_IBC_HRTBT_LSB; + qib_devinfo(ppd->dd->pcidev, + "Disabling IB%u:%u IBC loopback (normal)\n", + ppd->dd->unit, ppd->port); + } else + ret = -EINVAL; + if (!ret) { + qib_write_kreg_port(ppd, krp_ibcctrl_a, + ppd->cpspec->ibcctrl_a); + ctrlb = ppd->cpspec->ibcctrl_b & ~(IBA7322_IBC_HRTBT_MASK + << IBA7322_IBC_HRTBT_LSB); + ppd->cpspec->ibcctrl_b = ctrlb | val; + qib_write_kreg_port(ppd, krp_ibcctrl_b, + ppd->cpspec->ibcctrl_b); + qib_write_kreg(ppd->dd, kr_scratch, 0); + } + return ret; +} + +static void get_vl_weights(struct qib_pportdata *ppd, unsigned regno, + struct ib_vl_weight_elem *vl) +{ + unsigned i; + + for (i = 0; i < 16; i++, regno++, vl++) { + u32 val = qib_read_kreg_port(ppd, regno); + + vl->vl = (val >> SYM_LSB(LowPriority0_0, VirtualLane)) & + SYM_RMASK(LowPriority0_0, VirtualLane); + vl->weight = (val >> SYM_LSB(LowPriority0_0, Weight)) & + SYM_RMASK(LowPriority0_0, Weight); + } +} + +static void set_vl_weights(struct qib_pportdata *ppd, unsigned regno, + struct ib_vl_weight_elem *vl) +{ + unsigned i; + + for (i = 0; i < 16; i++, regno++, vl++) { + u64 val; + + val = ((vl->vl & SYM_RMASK(LowPriority0_0, VirtualLane)) << + SYM_LSB(LowPriority0_0, VirtualLane)) | + ((vl->weight & SYM_RMASK(LowPriority0_0, Weight)) << + SYM_LSB(LowPriority0_0, Weight)); + qib_write_kreg_port(ppd, regno, val); + } + if (!(ppd->p_sendctrl & SYM_MASK(SendCtrl_0, IBVLArbiterEn))) { + struct qib_devdata *dd = ppd->dd; + unsigned long flags; + + spin_lock_irqsave(&dd->sendctrl_lock, flags); + ppd->p_sendctrl |= SYM_MASK(SendCtrl_0, IBVLArbiterEn); + qib_write_kreg_port(ppd, krp_sendctrl, ppd->p_sendctrl); + qib_write_kreg(dd, kr_scratch, 0); + spin_unlock_irqrestore(&dd->sendctrl_lock, flags); + } +} + +static int qib_7322_get_ib_table(struct qib_pportdata *ppd, int which, void *t) +{ + switch (which) { + case QIB_IB_TBL_VL_HIGH_ARB: + get_vl_weights(ppd, krp_highprio_0, t); + break; + + case QIB_IB_TBL_VL_LOW_ARB: + get_vl_weights(ppd, krp_lowprio_0, t); + break; + + default: + return -EINVAL; + } + return 0; +} + +static int qib_7322_set_ib_table(struct qib_pportdata *ppd, int which, void *t) +{ + switch (which) { + case QIB_IB_TBL_VL_HIGH_ARB: + set_vl_weights(ppd, krp_highprio_0, t); + break; + + case QIB_IB_TBL_VL_LOW_ARB: + set_vl_weights(ppd, krp_lowprio_0, t); + break; + + default: + return -EINVAL; + } + return 0; +} + +static void qib_update_7322_usrhead(struct qib_ctxtdata *rcd, u64 hd, + u32 updegr, u32 egrhd, u32 npkts) +{ + /* + * Need to write timeout register before updating rcvhdrhead to ensure + * that the timer is enabled on reception of a packet. + */ + if (hd >> IBA7322_HDRHEAD_PKTINT_SHIFT) + adjust_rcv_timeout(rcd, npkts); + if (updegr) + qib_write_ureg(rcd->dd, ur_rcvegrindexhead, egrhd, rcd->ctxt); + qib_write_ureg(rcd->dd, ur_rcvhdrhead, hd, rcd->ctxt); + qib_write_ureg(rcd->dd, ur_rcvhdrhead, hd, rcd->ctxt); +} + +static u32 qib_7322_hdrqempty(struct qib_ctxtdata *rcd) +{ + u32 head, tail; + + head = qib_read_ureg32(rcd->dd, ur_rcvhdrhead, rcd->ctxt); + if (rcd->rcvhdrtail_kvaddr) + tail = qib_get_rcvhdrtail(rcd); + else + tail = qib_read_ureg32(rcd->dd, ur_rcvhdrtail, rcd->ctxt); + return head == tail; +} + +#define RCVCTRL_COMMON_MODS (QIB_RCVCTRL_CTXT_ENB | \ + QIB_RCVCTRL_CTXT_DIS | \ + QIB_RCVCTRL_TIDFLOW_ENB | \ + QIB_RCVCTRL_TIDFLOW_DIS | \ + QIB_RCVCTRL_TAILUPD_ENB | \ + QIB_RCVCTRL_TAILUPD_DIS | \ + QIB_RCVCTRL_INTRAVAIL_ENB | \ + QIB_RCVCTRL_INTRAVAIL_DIS | \ + QIB_RCVCTRL_BP_ENB | \ + QIB_RCVCTRL_BP_DIS) + +#define RCVCTRL_PORT_MODS (QIB_RCVCTRL_CTXT_ENB | \ + QIB_RCVCTRL_CTXT_DIS | \ + QIB_RCVCTRL_PKEY_DIS | \ + QIB_RCVCTRL_PKEY_ENB) + +/* + * Modify the RCVCTRL register in chip-specific way. This + * is a function because bit positions and (future) register + * location is chip-specifc, but the needed operations are + * generic. <op> is a bit-mask because we often want to + * do multiple modifications. + */ +static void rcvctrl_7322_mod(struct qib_pportdata *ppd, unsigned int op, + int ctxt) +{ + struct qib_devdata *dd = ppd->dd; + struct qib_ctxtdata *rcd; + u64 mask, val; + unsigned long flags; + + spin_lock_irqsave(&dd->cspec->rcvmod_lock, flags); + + if (op & QIB_RCVCTRL_TIDFLOW_ENB) + dd->rcvctrl |= SYM_MASK(RcvCtrl, TidFlowEnable); + if (op & QIB_RCVCTRL_TIDFLOW_DIS) + dd->rcvctrl &= ~SYM_MASK(RcvCtrl, TidFlowEnable); + if (op & QIB_RCVCTRL_TAILUPD_ENB) + dd->rcvctrl |= SYM_MASK(RcvCtrl, TailUpd); + if (op & QIB_RCVCTRL_TAILUPD_DIS) + dd->rcvctrl &= ~SYM_MASK(RcvCtrl, TailUpd); + if (op & QIB_RCVCTRL_PKEY_ENB) + ppd->p_rcvctrl &= ~SYM_MASK(RcvCtrl_0, RcvPartitionKeyDisable); + if (op & QIB_RCVCTRL_PKEY_DIS) + ppd->p_rcvctrl |= SYM_MASK(RcvCtrl_0, RcvPartitionKeyDisable); + if (ctxt < 0) { + mask = (1ULL << dd->ctxtcnt) - 1; + rcd = NULL; + } else { + mask = (1ULL << ctxt); + rcd = dd->rcd[ctxt]; + } + if ((op & QIB_RCVCTRL_CTXT_ENB) && rcd) { + ppd->p_rcvctrl |= + (mask << SYM_LSB(RcvCtrl_0, ContextEnableKernel)); + if (!(dd->flags & QIB_NODMA_RTAIL)) { + op |= QIB_RCVCTRL_TAILUPD_ENB; /* need reg write */ + dd->rcvctrl |= SYM_MASK(RcvCtrl, TailUpd); + } + /* Write these registers before the context is enabled. */ + qib_write_kreg_ctxt(dd, krc_rcvhdrtailaddr, ctxt, + rcd->rcvhdrqtailaddr_phys); + qib_write_kreg_ctxt(dd, krc_rcvhdraddr, ctxt, + rcd->rcvhdrq_phys); + rcd->seq_cnt = 1; + } + if (op & QIB_RCVCTRL_CTXT_DIS) + ppd->p_rcvctrl &= + ~(mask << SYM_LSB(RcvCtrl_0, ContextEnableKernel)); + if (op & QIB_RCVCTRL_BP_ENB) + dd->rcvctrl |= mask << SYM_LSB(RcvCtrl, dontDropRHQFull); + if (op & QIB_RCVCTRL_BP_DIS) + dd->rcvctrl &= ~(mask << SYM_LSB(RcvCtrl, dontDropRHQFull)); + if (op & QIB_RCVCTRL_INTRAVAIL_ENB) + dd->rcvctrl |= (mask << SYM_LSB(RcvCtrl, IntrAvail)); + if (op & QIB_RCVCTRL_INTRAVAIL_DIS) + dd->rcvctrl &= ~(mask << SYM_LSB(RcvCtrl, IntrAvail)); + /* + * Decide which registers to write depending on the ops enabled. + * Special case is "flush" (no bits set at all) + * which needs to write both. + */ + if (op == 0 || (op & RCVCTRL_COMMON_MODS)) + qib_write_kreg(dd, kr_rcvctrl, dd->rcvctrl); + if (op == 0 || (op & RCVCTRL_PORT_MODS)) + qib_write_kreg_port(ppd, krp_rcvctrl, ppd->p_rcvctrl); + if ((op & QIB_RCVCTRL_CTXT_ENB) && dd->rcd[ctxt]) { + /* + * Init the context registers also; if we were + * disabled, tail and head should both be zero + * already from the enable, but since we don't + * know, we have to do it explicitly. + */ + val = qib_read_ureg32(dd, ur_rcvegrindextail, ctxt); + qib_write_ureg(dd, ur_rcvegrindexhead, val, ctxt); + + /* be sure enabling write seen; hd/tl should be 0 */ + (void) qib_read_kreg32(dd, kr_scratch); + val = qib_read_ureg32(dd, ur_rcvhdrtail, ctxt); + dd->rcd[ctxt]->head = val; + /* If kctxt, interrupt on next receive. */ + if (ctxt < dd->first_user_ctxt) + val |= dd->rhdrhead_intr_off; + qib_write_ureg(dd, ur_rcvhdrhead, val, ctxt); + } else if ((op & QIB_RCVCTRL_INTRAVAIL_ENB) && + dd->rcd[ctxt] && dd->rhdrhead_intr_off) { + /* arm rcv interrupt */ + val = dd->rcd[ctxt]->head | dd->rhdrhead_intr_off; + qib_write_ureg(dd, ur_rcvhdrhead, val, ctxt); + } + if (op & QIB_RCVCTRL_CTXT_DIS) { + unsigned f; + + /* Now that the context is disabled, clear these registers. */ + if (ctxt >= 0) { + qib_write_kreg_ctxt(dd, krc_rcvhdrtailaddr, ctxt, 0); + qib_write_kreg_ctxt(dd, krc_rcvhdraddr, ctxt, 0); + for (f = 0; f < NUM_TIDFLOWS_CTXT; f++) + qib_write_ureg(dd, ur_rcvflowtable + f, + TIDFLOW_ERRBITS, ctxt); + } else { + unsigned i; + + for (i = 0; i < dd->cfgctxts; i++) { + qib_write_kreg_ctxt(dd, krc_rcvhdrtailaddr, + i, 0); + qib_write_kreg_ctxt(dd, krc_rcvhdraddr, i, 0); + for (f = 0; f < NUM_TIDFLOWS_CTXT; f++) + qib_write_ureg(dd, ur_rcvflowtable + f, + TIDFLOW_ERRBITS, i); + } + } + } + spin_unlock_irqrestore(&dd->cspec->rcvmod_lock, flags); +} + +/* + * Modify the SENDCTRL register in chip-specific way. This + * is a function where there are multiple such registers with + * slightly different layouts. + * The chip doesn't allow back-to-back sendctrl writes, so write + * the scratch register after writing sendctrl. + * + * Which register is written depends on the operation. + * Most operate on the common register, while + * SEND_ENB and SEND_DIS operate on the per-port ones. + * SEND_ENB is included in common because it can change SPCL_TRIG + */ +#define SENDCTRL_COMMON_MODS (\ + QIB_SENDCTRL_CLEAR | \ + QIB_SENDCTRL_AVAIL_DIS | \ + QIB_SENDCTRL_AVAIL_ENB | \ + QIB_SENDCTRL_AVAIL_BLIP | \ + QIB_SENDCTRL_DISARM | \ + QIB_SENDCTRL_DISARM_ALL | \ + QIB_SENDCTRL_SEND_ENB) + +#define SENDCTRL_PORT_MODS (\ + QIB_SENDCTRL_CLEAR | \ + QIB_SENDCTRL_SEND_ENB | \ + QIB_SENDCTRL_SEND_DIS | \ + QIB_SENDCTRL_FLUSH) + +static void sendctrl_7322_mod(struct qib_pportdata *ppd, u32 op) +{ + struct qib_devdata *dd = ppd->dd; + u64 tmp_dd_sendctrl; + unsigned long flags; + + spin_lock_irqsave(&dd->sendctrl_lock, flags); + + /* First the dd ones that are "sticky", saved in shadow */ + if (op & QIB_SENDCTRL_CLEAR) + dd->sendctrl = 0; + if (op & QIB_SENDCTRL_AVAIL_DIS) + dd->sendctrl &= ~SYM_MASK(SendCtrl, SendBufAvailUpd); + else if (op & QIB_SENDCTRL_AVAIL_ENB) { + dd->sendctrl |= SYM_MASK(SendCtrl, SendBufAvailUpd); + if (dd->flags & QIB_USE_SPCL_TRIG) + dd->sendctrl |= SYM_MASK(SendCtrl, SpecialTriggerEn); + } + + /* Then the ppd ones that are "sticky", saved in shadow */ + if (op & QIB_SENDCTRL_SEND_DIS) + ppd->p_sendctrl &= ~SYM_MASK(SendCtrl_0, SendEnable); + else if (op & QIB_SENDCTRL_SEND_ENB) + ppd->p_sendctrl |= SYM_MASK(SendCtrl_0, SendEnable); + + if (op & QIB_SENDCTRL_DISARM_ALL) { + u32 i, last; + + tmp_dd_sendctrl = dd->sendctrl; + last = dd->piobcnt2k + dd->piobcnt4k + NUM_VL15_BUFS; + /* + * Disarm any buffers that are not yet launched, + * disabling updates until done. + */ + tmp_dd_sendctrl &= ~SYM_MASK(SendCtrl, SendBufAvailUpd); + for (i = 0; i < last; i++) { + qib_write_kreg(dd, kr_sendctrl, + tmp_dd_sendctrl | + SYM_MASK(SendCtrl, Disarm) | i); + qib_write_kreg(dd, kr_scratch, 0); + } + } + + if (op & QIB_SENDCTRL_FLUSH) { + u64 tmp_ppd_sendctrl = ppd->p_sendctrl; + + /* + * Now drain all the fifos. The Abort bit should never be + * needed, so for now, at least, we don't use it. + */ + tmp_ppd_sendctrl |= + SYM_MASK(SendCtrl_0, TxeDrainRmFifo) | + SYM_MASK(SendCtrl_0, TxeDrainLaFifo) | + SYM_MASK(SendCtrl_0, TxeBypassIbc); + qib_write_kreg_port(ppd, krp_sendctrl, tmp_ppd_sendctrl); + qib_write_kreg(dd, kr_scratch, 0); + } + + tmp_dd_sendctrl = dd->sendctrl; + + if (op & QIB_SENDCTRL_DISARM) + tmp_dd_sendctrl |= SYM_MASK(SendCtrl, Disarm) | + ((op & QIB_7322_SendCtrl_DisarmSendBuf_RMASK) << + SYM_LSB(SendCtrl, DisarmSendBuf)); + if ((op & QIB_SENDCTRL_AVAIL_BLIP) && + (dd->sendctrl & SYM_MASK(SendCtrl, SendBufAvailUpd))) + tmp_dd_sendctrl &= ~SYM_MASK(SendCtrl, SendBufAvailUpd); + + if (op == 0 || (op & SENDCTRL_COMMON_MODS)) { + qib_write_kreg(dd, kr_sendctrl, tmp_dd_sendctrl); + qib_write_kreg(dd, kr_scratch, 0); + } + + if (op == 0 || (op & SENDCTRL_PORT_MODS)) { + qib_write_kreg_port(ppd, krp_sendctrl, ppd->p_sendctrl); + qib_write_kreg(dd, kr_scratch, 0); + } + + if (op & QIB_SENDCTRL_AVAIL_BLIP) { + qib_write_kreg(dd, kr_sendctrl, dd->sendctrl); + qib_write_kreg(dd, kr_scratch, 0); + } + + spin_unlock_irqrestore(&dd->sendctrl_lock, flags); + + if (op & QIB_SENDCTRL_FLUSH) { + u32 v; + /* + * ensure writes have hit chip, then do a few + * more reads, to allow DMA of pioavail registers + * to occur, so in-memory copy is in sync with + * the chip. Not always safe to sleep. + */ + v = qib_read_kreg32(dd, kr_scratch); + qib_write_kreg(dd, kr_scratch, v); + v = qib_read_kreg32(dd, kr_scratch); + qib_write_kreg(dd, kr_scratch, v); + qib_read_kreg32(dd, kr_scratch); + } +} + +#define _PORT_VIRT_FLAG 0x8000U /* "virtual", need adjustments */ +#define _PORT_64BIT_FLAG 0x10000U /* not "virtual", but 64bit */ +#define _PORT_CNTR_IDXMASK 0x7fffU /* mask off flags above */ + +/** + * qib_portcntr_7322 - read a per-port chip counter + * @ppd: the qlogic_ib pport + * @reg: the counter to read (not a chip offset) + */ +static u64 qib_portcntr_7322(struct qib_pportdata *ppd, u32 reg) +{ + struct qib_devdata *dd = ppd->dd; + u64 ret = 0ULL; + u16 creg; + /* 0xffff for unimplemented or synthesized counters */ + static const u32 xlator[] = { + [QIBPORTCNTR_PKTSEND] = crp_pktsend | _PORT_64BIT_FLAG, + [QIBPORTCNTR_WORDSEND] = crp_wordsend | _PORT_64BIT_FLAG, + [QIBPORTCNTR_PSXMITDATA] = crp_psxmitdatacount, + [QIBPORTCNTR_PSXMITPKTS] = crp_psxmitpktscount, + [QIBPORTCNTR_PSXMITWAIT] = crp_psxmitwaitcount, + [QIBPORTCNTR_SENDSTALL] = crp_sendstall, + [QIBPORTCNTR_PKTRCV] = crp_pktrcv | _PORT_64BIT_FLAG, + [QIBPORTCNTR_PSRCVDATA] = crp_psrcvdatacount, + [QIBPORTCNTR_PSRCVPKTS] = crp_psrcvpktscount, + [QIBPORTCNTR_RCVEBP] = crp_rcvebp, + [QIBPORTCNTR_RCVOVFL] = crp_rcvovfl, + [QIBPORTCNTR_WORDRCV] = crp_wordrcv | _PORT_64BIT_FLAG, + [QIBPORTCNTR_RXDROPPKT] = 0xffff, /* not needed for 7322 */ + [QIBPORTCNTR_RXLOCALPHYERR] = crp_rxotherlocalphyerr, + [QIBPORTCNTR_RXVLERR] = crp_rxvlerr, + [QIBPORTCNTR_ERRICRC] = crp_erricrc, + [QIBPORTCNTR_ERRVCRC] = crp_errvcrc, + [QIBPORTCNTR_ERRLPCRC] = crp_errlpcrc, + [QIBPORTCNTR_BADFORMAT] = crp_badformat, + [QIBPORTCNTR_ERR_RLEN] = crp_err_rlen, + [QIBPORTCNTR_IBSYMBOLERR] = crp_ibsymbolerr, + [QIBPORTCNTR_INVALIDRLEN] = crp_invalidrlen, + [QIBPORTCNTR_UNSUPVL] = crp_txunsupvl, + [QIBPORTCNTR_EXCESSBUFOVFL] = crp_excessbufferovfl, + [QIBPORTCNTR_ERRLINK] = crp_errlink, + [QIBPORTCNTR_IBLINKDOWN] = crp_iblinkdown, + [QIBPORTCNTR_IBLINKERRRECOV] = crp_iblinkerrrecov, + [QIBPORTCNTR_LLI] = crp_locallinkintegrityerr, + [QIBPORTCNTR_VL15PKTDROP] = crp_vl15droppedpkt, + [QIBPORTCNTR_ERRPKEY] = crp_errpkey, + /* + * the next 3 aren't really counters, but were implemented + * as counters in older chips, so still get accessed as + * though they were counters from this code. + */ + [QIBPORTCNTR_PSINTERVAL] = krp_psinterval, + [QIBPORTCNTR_PSSTART] = krp_psstart, + [QIBPORTCNTR_PSSTAT] = krp_psstat, + /* pseudo-counter, summed for all ports */ + [QIBPORTCNTR_KHDROVFL] = 0xffff, + }; + + if (reg >= ARRAY_SIZE(xlator)) { + qib_devinfo(ppd->dd->pcidev, + "Unimplemented portcounter %u\n", reg); + goto done; + } + creg = xlator[reg] & _PORT_CNTR_IDXMASK; + + /* handle non-counters and special cases first */ + if (reg == QIBPORTCNTR_KHDROVFL) { + int i; + + /* sum over all kernel contexts (skip if mini_init) */ + for (i = 0; dd->rcd && i < dd->first_user_ctxt; i++) { + struct qib_ctxtdata *rcd = dd->rcd[i]; + + if (!rcd || rcd->ppd != ppd) + continue; + ret += read_7322_creg32(dd, cr_base_egrovfl + i); + } + goto done; + } else if (reg == QIBPORTCNTR_RXDROPPKT) { + /* + * Used as part of the synthesis of port_rcv_errors + * in the verbs code for IBTA counters. Not needed for 7322, + * because all the errors are already counted by other cntrs. + */ + goto done; + } else if (reg == QIBPORTCNTR_PSINTERVAL || + reg == QIBPORTCNTR_PSSTART || reg == QIBPORTCNTR_PSSTAT) { + /* were counters in older chips, now per-port kernel regs */ + ret = qib_read_kreg_port(ppd, creg); + goto done; + } + + /* + * Only fast increment counters are 64 bits; use 32 bit reads to + * avoid two independent reads when on Opteron. + */ + if (xlator[reg] & _PORT_64BIT_FLAG) + ret = read_7322_creg_port(ppd, creg); + else + ret = read_7322_creg32_port(ppd, creg); + if (creg == crp_ibsymbolerr) { + if (ppd->cpspec->ibdeltainprog) + ret -= ret - ppd->cpspec->ibsymsnap; + ret -= ppd->cpspec->ibsymdelta; + } else if (creg == crp_iblinkerrrecov) { + if (ppd->cpspec->ibdeltainprog) + ret -= ret - ppd->cpspec->iblnkerrsnap; + ret -= ppd->cpspec->iblnkerrdelta; + } else if (creg == crp_errlink) + ret -= ppd->cpspec->ibmalfdelta; + else if (creg == crp_iblinkdown) + ret += ppd->cpspec->iblnkdowndelta; +done: + return ret; +} + +/* + * Device counter names (not port-specific), one line per stat, + * single string. Used by utilities like ipathstats to print the stats + * in a way which works for different versions of drivers, without changing + * the utility. Names need to be 12 chars or less (w/o newline), for proper + * display by utility. + * Non-error counters are first. + * Start of "error" conters is indicated by a leading "E " on the first + * "error" counter, and doesn't count in label length. + * The EgrOvfl list needs to be last so we truncate them at the configured + * context count for the device. + * cntr7322indices contains the corresponding register indices. + */ +static const char cntr7322names[] = + "Interrupts\n" + "HostBusStall\n" + "E RxTIDFull\n" + "RxTIDInvalid\n" + "RxTIDFloDrop\n" /* 7322 only */ + "Ctxt0EgrOvfl\n" + "Ctxt1EgrOvfl\n" + "Ctxt2EgrOvfl\n" + "Ctxt3EgrOvfl\n" + "Ctxt4EgrOvfl\n" + "Ctxt5EgrOvfl\n" + "Ctxt6EgrOvfl\n" + "Ctxt7EgrOvfl\n" + "Ctxt8EgrOvfl\n" + "Ctxt9EgrOvfl\n" + "Ctx10EgrOvfl\n" + "Ctx11EgrOvfl\n" + "Ctx12EgrOvfl\n" + "Ctx13EgrOvfl\n" + "Ctx14EgrOvfl\n" + "Ctx15EgrOvfl\n" + "Ctx16EgrOvfl\n" + "Ctx17EgrOvfl\n" + ; + +static const u32 cntr7322indices[] = { + cr_lbint | _PORT_64BIT_FLAG, + cr_lbstall | _PORT_64BIT_FLAG, + cr_tidfull, + cr_tidinvalid, + cr_rxtidflowdrop, + cr_base_egrovfl + 0, + cr_base_egrovfl + 1, + cr_base_egrovfl + 2, + cr_base_egrovfl + 3, + cr_base_egrovfl + 4, + cr_base_egrovfl + 5, + cr_base_egrovfl + 6, + cr_base_egrovfl + 7, + cr_base_egrovfl + 8, + cr_base_egrovfl + 9, + cr_base_egrovfl + 10, + cr_base_egrovfl + 11, + cr_base_egrovfl + 12, + cr_base_egrovfl + 13, + cr_base_egrovfl + 14, + cr_base_egrovfl + 15, + cr_base_egrovfl + 16, + cr_base_egrovfl + 17, +}; + +/* + * same as cntr7322names and cntr7322indices, but for port-specific counters. + * portcntr7322indices is somewhat complicated by some registers needing + * adjustments of various kinds, and those are ORed with _PORT_VIRT_FLAG + */ +static const char portcntr7322names[] = + "TxPkt\n" + "TxFlowPkt\n" + "TxWords\n" + "RxPkt\n" + "RxFlowPkt\n" + "RxWords\n" + "TxFlowStall\n" + "TxDmaDesc\n" /* 7220 and 7322-only */ + "E RxDlidFltr\n" /* 7220 and 7322-only */ + "IBStatusChng\n" + "IBLinkDown\n" + "IBLnkRecov\n" + "IBRxLinkErr\n" + "IBSymbolErr\n" + "RxLLIErr\n" + "RxBadFormat\n" + "RxBadLen\n" + "RxBufOvrfl\n" + "RxEBP\n" + "RxFlowCtlErr\n" + "RxICRCerr\n" + "RxLPCRCerr\n" + "RxVCRCerr\n" + "RxInvalLen\n" + "RxInvalPKey\n" + "RxPktDropped\n" + "TxBadLength\n" + "TxDropped\n" + "TxInvalLen\n" + "TxUnderrun\n" + "TxUnsupVL\n" + "RxLclPhyErr\n" /* 7220 and 7322-only from here down */ + "RxVL15Drop\n" + "RxVlErr\n" + "XcessBufOvfl\n" + "RxQPBadCtxt\n" /* 7322-only from here down */ + "TXBadHeader\n" + ; + +static const u32 portcntr7322indices[] = { + QIBPORTCNTR_PKTSEND | _PORT_VIRT_FLAG, + crp_pktsendflow, + QIBPORTCNTR_WORDSEND | _PORT_VIRT_FLAG, + QIBPORTCNTR_PKTRCV | _PORT_VIRT_FLAG, + crp_pktrcvflowctrl, + QIBPORTCNTR_WORDRCV | _PORT_VIRT_FLAG, + QIBPORTCNTR_SENDSTALL | _PORT_VIRT_FLAG, + crp_txsdmadesc | _PORT_64BIT_FLAG, + crp_rxdlidfltr, + crp_ibstatuschange, + QIBPORTCNTR_IBLINKDOWN | _PORT_VIRT_FLAG, + QIBPORTCNTR_IBLINKERRRECOV | _PORT_VIRT_FLAG, + QIBPORTCNTR_ERRLINK | _PORT_VIRT_FLAG, + QIBPORTCNTR_IBSYMBOLERR | _PORT_VIRT_FLAG, + QIBPORTCNTR_LLI | _PORT_VIRT_FLAG, + QIBPORTCNTR_BADFORMAT | _PORT_VIRT_FLAG, + QIBPORTCNTR_ERR_RLEN | _PORT_VIRT_FLAG, + QIBPORTCNTR_RCVOVFL | _PORT_VIRT_FLAG, + QIBPORTCNTR_RCVEBP | _PORT_VIRT_FLAG, + crp_rcvflowctrlviol, + QIBPORTCNTR_ERRICRC | _PORT_VIRT_FLAG, + QIBPORTCNTR_ERRLPCRC | _PORT_VIRT_FLAG, + QIBPORTCNTR_ERRVCRC | _PORT_VIRT_FLAG, + QIBPORTCNTR_INVALIDRLEN | _PORT_VIRT_FLAG, + QIBPORTCNTR_ERRPKEY | _PORT_VIRT_FLAG, + QIBPORTCNTR_RXDROPPKT | _PORT_VIRT_FLAG, + crp_txminmaxlenerr, + crp_txdroppedpkt, + crp_txlenerr, + crp_txunderrun, + crp_txunsupvl, + QIBPORTCNTR_RXLOCALPHYERR | _PORT_VIRT_FLAG, + QIBPORTCNTR_VL15PKTDROP | _PORT_VIRT_FLAG, + QIBPORTCNTR_RXVLERR | _PORT_VIRT_FLAG, + QIBPORTCNTR_EXCESSBUFOVFL | _PORT_VIRT_FLAG, + crp_rxqpinvalidctxt, + crp_txhdrerr, +}; + +/* do all the setup to make the counter reads efficient later */ +static void init_7322_cntrnames(struct qib_devdata *dd) +{ + int i, j = 0; + char *s; + + for (i = 0, s = (char *)cntr7322names; s && j <= dd->cfgctxts; + i++) { + /* we always have at least one counter before the egrovfl */ + if (!j && !strncmp("Ctxt0EgrOvfl", s + 1, 12)) + j = 1; + s = strchr(s + 1, '\n'); + if (s && j) + j++; + } + dd->cspec->ncntrs = i; + if (!s) + /* full list; size is without terminating null */ + dd->cspec->cntrnamelen = sizeof(cntr7322names) - 1; + else + dd->cspec->cntrnamelen = 1 + s - cntr7322names; + dd->cspec->cntrs = kmalloc_array(dd->cspec->ncntrs, sizeof(u64), + GFP_KERNEL); + + for (i = 0, s = (char *)portcntr7322names; s; i++) + s = strchr(s + 1, '\n'); + dd->cspec->nportcntrs = i - 1; + dd->cspec->portcntrnamelen = sizeof(portcntr7322names) - 1; + for (i = 0; i < dd->num_pports; ++i) { + dd->pport[i].cpspec->portcntrs = + kmalloc_array(dd->cspec->nportcntrs, sizeof(u64), + GFP_KERNEL); + } +} + +static u32 qib_read_7322cntrs(struct qib_devdata *dd, loff_t pos, char **namep, + u64 **cntrp) +{ + u32 ret; + + if (namep) { + ret = dd->cspec->cntrnamelen; + if (pos >= ret) + ret = 0; /* final read after getting everything */ + else + *namep = (char *) cntr7322names; + } else { + u64 *cntr = dd->cspec->cntrs; + int i; + + ret = dd->cspec->ncntrs * sizeof(u64); + if (!cntr || pos >= ret) { + /* everything read, or couldn't get memory */ + ret = 0; + goto done; + } + *cntrp = cntr; + for (i = 0; i < dd->cspec->ncntrs; i++) + if (cntr7322indices[i] & _PORT_64BIT_FLAG) + *cntr++ = read_7322_creg(dd, + cntr7322indices[i] & + _PORT_CNTR_IDXMASK); + else + *cntr++ = read_7322_creg32(dd, + cntr7322indices[i]); + } +done: + return ret; +} + +static u32 qib_read_7322portcntrs(struct qib_devdata *dd, loff_t pos, u32 port, + char **namep, u64 **cntrp) +{ + u32 ret; + + if (namep) { + ret = dd->cspec->portcntrnamelen; + if (pos >= ret) + ret = 0; /* final read after getting everything */ + else + *namep = (char *)portcntr7322names; + } else { + struct qib_pportdata *ppd = &dd->pport[port]; + u64 *cntr = ppd->cpspec->portcntrs; + int i; + + ret = dd->cspec->nportcntrs * sizeof(u64); + if (!cntr || pos >= ret) { + /* everything read, or couldn't get memory */ + ret = 0; + goto done; + } + *cntrp = cntr; + for (i = 0; i < dd->cspec->nportcntrs; i++) { + if (portcntr7322indices[i] & _PORT_VIRT_FLAG) + *cntr++ = qib_portcntr_7322(ppd, + portcntr7322indices[i] & + _PORT_CNTR_IDXMASK); + else if (portcntr7322indices[i] & _PORT_64BIT_FLAG) + *cntr++ = read_7322_creg_port(ppd, + portcntr7322indices[i] & + _PORT_CNTR_IDXMASK); + else + *cntr++ = read_7322_creg32_port(ppd, + portcntr7322indices[i]); + } + } +done: + return ret; +} + +/** + * qib_get_7322_faststats - get word counters from chip before they overflow + * @t: contains a pointer to the qlogic_ib device qib_devdata + * + * VESTIGIAL IBA7322 has no "small fast counters", so the only + * real purpose of this function is to maintain the notion of + * "active time", which in turn is only logged into the eeprom, + * which we don;t have, yet, for 7322-based boards. + * + * called from add_timer + */ +static void qib_get_7322_faststats(struct timer_list *t) +{ + struct qib_devdata *dd = from_timer(dd, t, stats_timer); + struct qib_pportdata *ppd; + unsigned long flags; + u64 traffic_wds; + int pidx; + + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + ppd = dd->pport + pidx; + + /* + * If port isn't enabled or not operational ports, or + * diags is running (can cause memory diags to fail) + * skip this port this time. + */ + if (!ppd->link_speed_supported || !(dd->flags & QIB_INITTED) + || dd->diag_client) + continue; + + /* + * Maintain an activity timer, based on traffic + * exceeding a threshold, so we need to check the word-counts + * even if they are 64-bit. + */ + traffic_wds = qib_portcntr_7322(ppd, QIBPORTCNTR_WORDRCV) + + qib_portcntr_7322(ppd, QIBPORTCNTR_WORDSEND); + spin_lock_irqsave(&ppd->dd->eep_st_lock, flags); + traffic_wds -= ppd->dd->traffic_wds; + ppd->dd->traffic_wds += traffic_wds; + spin_unlock_irqrestore(&ppd->dd->eep_st_lock, flags); + if (ppd->cpspec->qdr_dfe_on && (ppd->link_speed_active & + QIB_IB_QDR) && + (ppd->lflags & (QIBL_LINKINIT | QIBL_LINKARMED | + QIBL_LINKACTIVE)) && + ppd->cpspec->qdr_dfe_time && + time_is_before_jiffies(ppd->cpspec->qdr_dfe_time)) { + ppd->cpspec->qdr_dfe_on = 0; + + qib_write_kreg_port(ppd, krp_static_adapt_dis(2), + ppd->dd->cspec->r1 ? + QDR_STATIC_ADAPT_INIT_R1 : + QDR_STATIC_ADAPT_INIT); + force_h1(ppd); + } + } + mod_timer(&dd->stats_timer, jiffies + HZ * ACTIVITY_TIMER); +} + +/* + * If we were using MSIx, try to fallback to INTx. + */ +static int qib_7322_intr_fallback(struct qib_devdata *dd) +{ + if (!dd->cspec->num_msix_entries) + return 0; /* already using INTx */ + + qib_devinfo(dd->pcidev, + "MSIx interrupt not detected, trying INTx interrupts\n"); + qib_7322_free_irq(dd); + if (pci_alloc_irq_vectors(dd->pcidev, 1, 1, PCI_IRQ_LEGACY) < 0) + qib_dev_err(dd, "Failed to enable INTx\n"); + qib_setup_7322_interrupt(dd, 0); + return 1; +} + +/* + * Reset the XGXS (between serdes and IBC). Slightly less intrusive + * than resetting the IBC or external link state, and useful in some + * cases to cause some retraining. To do this right, we reset IBC + * as well, then return to previous state (which may be still in reset) + * NOTE: some callers of this "know" this writes the current value + * of cpspec->ibcctrl_a as part of it's operation, so if that changes, + * check all callers. + */ +static void qib_7322_mini_pcs_reset(struct qib_pportdata *ppd) +{ + u64 val; + struct qib_devdata *dd = ppd->dd; + const u64 reset_bits = SYM_MASK(IBPCSConfig_0, xcv_rreset) | + SYM_MASK(IBPCSConfig_0, xcv_treset) | + SYM_MASK(IBPCSConfig_0, tx_rx_reset); + + val = qib_read_kreg_port(ppd, krp_ib_pcsconfig); + qib_write_kreg(dd, kr_hwerrmask, + dd->cspec->hwerrmask & ~HWE_MASK(statusValidNoEop)); + qib_write_kreg_port(ppd, krp_ibcctrl_a, + ppd->cpspec->ibcctrl_a & + ~SYM_MASK(IBCCtrlA_0, IBLinkEn)); + + qib_write_kreg_port(ppd, krp_ib_pcsconfig, val | reset_bits); + qib_read_kreg32(dd, kr_scratch); + qib_write_kreg_port(ppd, krp_ib_pcsconfig, val & ~reset_bits); + qib_write_kreg_port(ppd, krp_ibcctrl_a, ppd->cpspec->ibcctrl_a); + qib_write_kreg(dd, kr_scratch, 0ULL); + qib_write_kreg(dd, kr_hwerrclear, + SYM_MASK(HwErrClear, statusValidNoEopClear)); + qib_write_kreg(dd, kr_hwerrmask, dd->cspec->hwerrmask); +} + +/* + * This code for non-IBTA-compliant IB speed negotiation is only known to + * work for the SDR to DDR transition, and only between an HCA and a switch + * with recent firmware. It is based on observed heuristics, rather than + * actual knowledge of the non-compliant speed negotiation. + * It has a number of hard-coded fields, since the hope is to rewrite this + * when a spec is available on how the negoation is intended to work. + */ +static void autoneg_7322_sendpkt(struct qib_pportdata *ppd, u32 *hdr, + u32 dcnt, u32 *data) +{ + int i; + u64 pbc; + u32 __iomem *piobuf; + u32 pnum, control, len; + struct qib_devdata *dd = ppd->dd; + + i = 0; + len = 7 + dcnt + 1; /* 7 dword header, dword data, icrc */ + control = qib_7322_setpbc_control(ppd, len, 0, 15); + pbc = ((u64) control << 32) | len; + while (!(piobuf = qib_7322_getsendbuf(ppd, pbc, &pnum))) { + if (i++ > 15) + return; + udelay(2); + } + /* disable header check on this packet, since it can't be valid */ + dd->f_txchk_change(dd, pnum, 1, TXCHK_CHG_TYPE_DIS1, NULL); + writeq(pbc, piobuf); + qib_flush_wc(); + qib_pio_copy(piobuf + 2, hdr, 7); + qib_pio_copy(piobuf + 9, data, dcnt); + if (dd->flags & QIB_USE_SPCL_TRIG) { + u32 spcl_off = (pnum >= dd->piobcnt2k) ? 2047 : 1023; + + qib_flush_wc(); + __raw_writel(0xaebecede, piobuf + spcl_off); + } + qib_flush_wc(); + qib_sendbuf_done(dd, pnum); + /* and re-enable hdr check */ + dd->f_txchk_change(dd, pnum, 1, TXCHK_CHG_TYPE_ENAB1, NULL); +} + +/* + * _start packet gets sent twice at start, _done gets sent twice at end + */ +static void qib_autoneg_7322_send(struct qib_pportdata *ppd, int which) +{ + struct qib_devdata *dd = ppd->dd; + static u32 swapped; + u32 dw, i, hcnt, dcnt, *data; + static u32 hdr[7] = { 0xf002ffff, 0x48ffff, 0x6400abba }; + static u32 madpayload_start[0x40] = { + 0x1810103, 0x1, 0x0, 0x0, 0x2c90000, 0x2c9, 0x0, 0x0, + 0xffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x1, 0x1388, 0x15e, 0x1, /* rest 0's */ + }; + static u32 madpayload_done[0x40] = { + 0x1810103, 0x1, 0x0, 0x0, 0x2c90000, 0x2c9, 0x0, 0x0, + 0xffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x40000001, 0x1388, 0x15e, /* rest 0's */ + }; + + dcnt = ARRAY_SIZE(madpayload_start); + hcnt = ARRAY_SIZE(hdr); + if (!swapped) { + /* for maintainability, do it at runtime */ + for (i = 0; i < hcnt; i++) { + dw = (__force u32) cpu_to_be32(hdr[i]); + hdr[i] = dw; + } + for (i = 0; i < dcnt; i++) { + dw = (__force u32) cpu_to_be32(madpayload_start[i]); + madpayload_start[i] = dw; + dw = (__force u32) cpu_to_be32(madpayload_done[i]); + madpayload_done[i] = dw; + } + swapped = 1; + } + + data = which ? madpayload_done : madpayload_start; + + autoneg_7322_sendpkt(ppd, hdr, dcnt, data); + qib_read_kreg64(dd, kr_scratch); + udelay(2); + autoneg_7322_sendpkt(ppd, hdr, dcnt, data); + qib_read_kreg64(dd, kr_scratch); + udelay(2); +} + +/* + * Do the absolute minimum to cause an IB speed change, and make it + * ready, but don't actually trigger the change. The caller will + * do that when ready (if link is in Polling training state, it will + * happen immediately, otherwise when link next goes down) + * + * This routine should only be used as part of the DDR autonegotation + * code for devices that are not compliant with IB 1.2 (or code that + * fixes things up for same). + * + * When link has gone down, and autoneg enabled, or autoneg has + * failed and we give up until next time we set both speeds, and + * then we want IBTA enabled as well as "use max enabled speed. + */ +static void set_7322_ibspeed_fast(struct qib_pportdata *ppd, u32 speed) +{ + u64 newctrlb; + + newctrlb = ppd->cpspec->ibcctrl_b & ~(IBA7322_IBC_SPEED_MASK | + IBA7322_IBC_IBTA_1_2_MASK | + IBA7322_IBC_MAX_SPEED_MASK); + + if (speed & (speed - 1)) /* multiple speeds */ + newctrlb |= (speed << IBA7322_IBC_SPEED_LSB) | + IBA7322_IBC_IBTA_1_2_MASK | + IBA7322_IBC_MAX_SPEED_MASK; + else + newctrlb |= speed == QIB_IB_QDR ? + IBA7322_IBC_SPEED_QDR | IBA7322_IBC_IBTA_1_2_MASK : + ((speed == QIB_IB_DDR ? + IBA7322_IBC_SPEED_DDR : IBA7322_IBC_SPEED_SDR)); + + if (newctrlb == ppd->cpspec->ibcctrl_b) + return; + + ppd->cpspec->ibcctrl_b = newctrlb; + qib_write_kreg_port(ppd, krp_ibcctrl_b, ppd->cpspec->ibcctrl_b); + qib_write_kreg(ppd->dd, kr_scratch, 0); +} + +/* + * This routine is only used when we are not talking to another + * IB 1.2-compliant device that we think can do DDR. + * (This includes all existing switch chips as of Oct 2007.) + * 1.2-compliant devices go directly to DDR prior to reaching INIT + */ +static void try_7322_autoneg(struct qib_pportdata *ppd) +{ + unsigned long flags; + + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags |= QIBL_IB_AUTONEG_INPROG; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + qib_autoneg_7322_send(ppd, 0); + set_7322_ibspeed_fast(ppd, QIB_IB_DDR); + qib_7322_mini_pcs_reset(ppd); + /* 2 msec is minimum length of a poll cycle */ + queue_delayed_work(ib_wq, &ppd->cpspec->autoneg_work, + msecs_to_jiffies(2)); +} + +/* + * Handle the empirically determined mechanism for auto-negotiation + * of DDR speed with switches. + */ +static void autoneg_7322_work(struct work_struct *work) +{ + struct qib_pportdata *ppd; + u32 i; + unsigned long flags; + + ppd = container_of(work, struct qib_chippport_specific, + autoneg_work.work)->ppd; + + /* + * Busy wait for this first part, it should be at most a + * few hundred usec, since we scheduled ourselves for 2msec. + */ + for (i = 0; i < 25; i++) { + if (SYM_FIELD(ppd->lastibcstat, IBCStatusA_0, LinkState) + == IB_7322_LT_STATE_POLLQUIET) { + qib_set_linkstate(ppd, QIB_IB_LINKDOWN_DISABLE); + break; + } + udelay(100); + } + + if (!(ppd->lflags & QIBL_IB_AUTONEG_INPROG)) + goto done; /* we got there early or told to stop */ + + /* we expect this to timeout */ + if (wait_event_timeout(ppd->cpspec->autoneg_wait, + !(ppd->lflags & QIBL_IB_AUTONEG_INPROG), + msecs_to_jiffies(90))) + goto done; + qib_7322_mini_pcs_reset(ppd); + + /* we expect this to timeout */ + if (wait_event_timeout(ppd->cpspec->autoneg_wait, + !(ppd->lflags & QIBL_IB_AUTONEG_INPROG), + msecs_to_jiffies(1700))) + goto done; + qib_7322_mini_pcs_reset(ppd); + + set_7322_ibspeed_fast(ppd, QIB_IB_SDR); + + /* + * Wait up to 250 msec for link to train and get to INIT at DDR; + * this should terminate early. + */ + wait_event_timeout(ppd->cpspec->autoneg_wait, + !(ppd->lflags & QIBL_IB_AUTONEG_INPROG), + msecs_to_jiffies(250)); +done: + if (ppd->lflags & QIBL_IB_AUTONEG_INPROG) { + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~QIBL_IB_AUTONEG_INPROG; + if (ppd->cpspec->autoneg_tries == AUTONEG_TRIES) { + ppd->lflags |= QIBL_IB_AUTONEG_FAILED; + ppd->cpspec->autoneg_tries = 0; + } + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + set_7322_ibspeed_fast(ppd, ppd->link_speed_enabled); + } +} + +/* + * This routine is used to request IPG set in the QLogic switch. + * Only called if r1. + */ +static void try_7322_ipg(struct qib_pportdata *ppd) +{ + struct qib_ibport *ibp = &ppd->ibport_data; + struct ib_mad_send_buf *send_buf; + struct ib_mad_agent *agent; + struct ib_smp *smp; + unsigned delay; + int ret; + + agent = ibp->rvp.send_agent; + if (!agent) + goto retry; + + send_buf = ib_create_send_mad(agent, 0, 0, 0, IB_MGMT_MAD_HDR, + IB_MGMT_MAD_DATA, GFP_ATOMIC, + IB_MGMT_BASE_VERSION); + if (IS_ERR(send_buf)) + goto retry; + + if (!ibp->smi_ah) { + struct ib_ah *ah; + + ah = qib_create_qp0_ah(ibp, be16_to_cpu(IB_LID_PERMISSIVE)); + if (IS_ERR(ah)) + ret = PTR_ERR(ah); + else { + send_buf->ah = ah; + ibp->smi_ah = ibah_to_rvtah(ah); + ret = 0; + } + } else { + send_buf->ah = &ibp->smi_ah->ibah; + ret = 0; + } + + smp = send_buf->mad; + smp->base_version = IB_MGMT_BASE_VERSION; + smp->mgmt_class = IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE; + smp->class_version = 1; + smp->method = IB_MGMT_METHOD_SEND; + smp->hop_cnt = 1; + smp->attr_id = QIB_VENDOR_IPG; + smp->attr_mod = 0; + + if (!ret) + ret = ib_post_send_mad(send_buf, NULL); + if (ret) + ib_free_send_mad(send_buf); +retry: + delay = 2 << ppd->cpspec->ipg_tries; + queue_delayed_work(ib_wq, &ppd->cpspec->ipg_work, + msecs_to_jiffies(delay)); +} + +/* + * Timeout handler for setting IPG. + * Only called if r1. + */ +static void ipg_7322_work(struct work_struct *work) +{ + struct qib_pportdata *ppd; + + ppd = container_of(work, struct qib_chippport_specific, + ipg_work.work)->ppd; + if ((ppd->lflags & (QIBL_LINKINIT | QIBL_LINKARMED | QIBL_LINKACTIVE)) + && ++ppd->cpspec->ipg_tries <= 10) + try_7322_ipg(ppd); +} + +static u32 qib_7322_iblink_state(u64 ibcs) +{ + u32 state = (u32)SYM_FIELD(ibcs, IBCStatusA_0, LinkState); + + switch (state) { + case IB_7322_L_STATE_INIT: + state = IB_PORT_INIT; + break; + case IB_7322_L_STATE_ARM: + state = IB_PORT_ARMED; + break; + case IB_7322_L_STATE_ACTIVE: + case IB_7322_L_STATE_ACT_DEFER: + state = IB_PORT_ACTIVE; + break; + default: + fallthrough; + case IB_7322_L_STATE_DOWN: + state = IB_PORT_DOWN; + break; + } + return state; +} + +/* returns the IBTA port state, rather than the IBC link training state */ +static u8 qib_7322_phys_portstate(u64 ibcs) +{ + u8 state = (u8)SYM_FIELD(ibcs, IBCStatusA_0, LinkTrainingState); + return qib_7322_physportstate[state]; +} + +static int qib_7322_ib_updown(struct qib_pportdata *ppd, int ibup, u64 ibcs) +{ + int ret = 0, symadj = 0; + unsigned long flags; + int mult; + + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~QIBL_IB_FORCE_NOTIFY; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + + /* Update our picture of width and speed from chip */ + if (ibcs & SYM_MASK(IBCStatusA_0, LinkSpeedQDR)) { + ppd->link_speed_active = QIB_IB_QDR; + mult = 4; + } else if (ibcs & SYM_MASK(IBCStatusA_0, LinkSpeedActive)) { + ppd->link_speed_active = QIB_IB_DDR; + mult = 2; + } else { + ppd->link_speed_active = QIB_IB_SDR; + mult = 1; + } + if (ibcs & SYM_MASK(IBCStatusA_0, LinkWidthActive)) { + ppd->link_width_active = IB_WIDTH_4X; + mult *= 4; + } else + ppd->link_width_active = IB_WIDTH_1X; + ppd->delay_mult = ib_rate_to_delay[mult_to_ib_rate(mult)]; + + if (!ibup) { + u64 clr; + + /* Link went down. */ + /* do IPG MAD again after linkdown, even if last time failed */ + ppd->cpspec->ipg_tries = 0; + clr = qib_read_kreg_port(ppd, krp_ibcstatus_b) & + (SYM_MASK(IBCStatusB_0, heartbeat_timed_out) | + SYM_MASK(IBCStatusB_0, heartbeat_crosstalk)); + if (clr) + qib_write_kreg_port(ppd, krp_ibcstatus_b, clr); + if (!(ppd->lflags & (QIBL_IB_AUTONEG_FAILED | + QIBL_IB_AUTONEG_INPROG))) + set_7322_ibspeed_fast(ppd, ppd->link_speed_enabled); + if (!(ppd->lflags & QIBL_IB_AUTONEG_INPROG)) { + struct qib_qsfp_data *qd = + &ppd->cpspec->qsfp_data; + /* unlock the Tx settings, speed may change */ + qib_write_kreg_port(ppd, krp_tx_deemph_override, + SYM_MASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0, + reset_tx_deemphasis_override)); + qib_cancel_sends(ppd); + /* on link down, ensure sane pcs state */ + qib_7322_mini_pcs_reset(ppd); + /* schedule the qsfp refresh which should turn the link + off */ + if (ppd->dd->flags & QIB_HAS_QSFP) { + qd->t_insert = jiffies; + queue_work(ib_wq, &qd->work); + } + spin_lock_irqsave(&ppd->sdma_lock, flags); + if (__qib_sdma_running(ppd)) + __qib_sdma_process_event(ppd, + qib_sdma_event_e70_go_idle); + spin_unlock_irqrestore(&ppd->sdma_lock, flags); + } + clr = read_7322_creg32_port(ppd, crp_iblinkdown); + if (clr == ppd->cpspec->iblnkdownsnap) + ppd->cpspec->iblnkdowndelta++; + } else { + if (qib_compat_ddr_negotiate && + !(ppd->lflags & (QIBL_IB_AUTONEG_FAILED | + QIBL_IB_AUTONEG_INPROG)) && + ppd->link_speed_active == QIB_IB_SDR && + (ppd->link_speed_enabled & QIB_IB_DDR) + && ppd->cpspec->autoneg_tries < AUTONEG_TRIES) { + /* we are SDR, and auto-negotiation enabled */ + ++ppd->cpspec->autoneg_tries; + if (!ppd->cpspec->ibdeltainprog) { + ppd->cpspec->ibdeltainprog = 1; + ppd->cpspec->ibsymdelta += + read_7322_creg32_port(ppd, + crp_ibsymbolerr) - + ppd->cpspec->ibsymsnap; + ppd->cpspec->iblnkerrdelta += + read_7322_creg32_port(ppd, + crp_iblinkerrrecov) - + ppd->cpspec->iblnkerrsnap; + } + try_7322_autoneg(ppd); + ret = 1; /* no other IB status change processing */ + } else if ((ppd->lflags & QIBL_IB_AUTONEG_INPROG) && + ppd->link_speed_active == QIB_IB_SDR) { + qib_autoneg_7322_send(ppd, 1); + set_7322_ibspeed_fast(ppd, QIB_IB_DDR); + qib_7322_mini_pcs_reset(ppd); + udelay(2); + ret = 1; /* no other IB status change processing */ + } else if ((ppd->lflags & QIBL_IB_AUTONEG_INPROG) && + (ppd->link_speed_active & QIB_IB_DDR)) { + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~(QIBL_IB_AUTONEG_INPROG | + QIBL_IB_AUTONEG_FAILED); + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + ppd->cpspec->autoneg_tries = 0; + /* re-enable SDR, for next link down */ + set_7322_ibspeed_fast(ppd, ppd->link_speed_enabled); + wake_up(&ppd->cpspec->autoneg_wait); + symadj = 1; + } else if (ppd->lflags & QIBL_IB_AUTONEG_FAILED) { + /* + * Clear autoneg failure flag, and do setup + * so we'll try next time link goes down and + * back to INIT (possibly connected to a + * different device). + */ + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~QIBL_IB_AUTONEG_FAILED; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + ppd->cpspec->ibcctrl_b |= IBA7322_IBC_IBTA_1_2_MASK; + symadj = 1; + } + if (!(ppd->lflags & QIBL_IB_AUTONEG_INPROG)) { + symadj = 1; + if (ppd->dd->cspec->r1 && ppd->cpspec->ipg_tries <= 10) + try_7322_ipg(ppd); + if (!ppd->cpspec->recovery_init) + setup_7322_link_recovery(ppd, 0); + ppd->cpspec->qdr_dfe_time = jiffies + + msecs_to_jiffies(QDR_DFE_DISABLE_DELAY); + } + ppd->cpspec->ibmalfusesnap = 0; + ppd->cpspec->ibmalfsnap = read_7322_creg32_port(ppd, + crp_errlink); + } + if (symadj) { + ppd->cpspec->iblnkdownsnap = + read_7322_creg32_port(ppd, crp_iblinkdown); + if (ppd->cpspec->ibdeltainprog) { + ppd->cpspec->ibdeltainprog = 0; + ppd->cpspec->ibsymdelta += read_7322_creg32_port(ppd, + crp_ibsymbolerr) - ppd->cpspec->ibsymsnap; + ppd->cpspec->iblnkerrdelta += read_7322_creg32_port(ppd, + crp_iblinkerrrecov) - ppd->cpspec->iblnkerrsnap; + } + } else if (!ibup && qib_compat_ddr_negotiate && + !ppd->cpspec->ibdeltainprog && + !(ppd->lflags & QIBL_IB_AUTONEG_INPROG)) { + ppd->cpspec->ibdeltainprog = 1; + ppd->cpspec->ibsymsnap = read_7322_creg32_port(ppd, + crp_ibsymbolerr); + ppd->cpspec->iblnkerrsnap = read_7322_creg32_port(ppd, + crp_iblinkerrrecov); + } + + if (!ret) + qib_setup_7322_setextled(ppd, ibup); + return ret; +} + +/* + * Does read/modify/write to appropriate registers to + * set output and direction bits selected by mask. + * these are in their canonical positions (e.g. lsb of + * dir will end up in D48 of extctrl on existing chips). + * returns contents of GP Inputs. + */ +static int gpio_7322_mod(struct qib_devdata *dd, u32 out, u32 dir, u32 mask) +{ + u64 read_val, new_out; + unsigned long flags; + + if (mask) { + /* some bits being written, lock access to GPIO */ + dir &= mask; + out &= mask; + spin_lock_irqsave(&dd->cspec->gpio_lock, flags); + dd->cspec->extctrl &= ~((u64)mask << SYM_LSB(EXTCtrl, GPIOOe)); + dd->cspec->extctrl |= ((u64) dir << SYM_LSB(EXTCtrl, GPIOOe)); + new_out = (dd->cspec->gpio_out & ~mask) | out; + + qib_write_kreg(dd, kr_extctrl, dd->cspec->extctrl); + qib_write_kreg(dd, kr_gpio_out, new_out); + dd->cspec->gpio_out = new_out; + spin_unlock_irqrestore(&dd->cspec->gpio_lock, flags); + } + /* + * It is unlikely that a read at this time would get valid + * data on a pin whose direction line was set in the same + * call to this function. We include the read here because + * that allows us to potentially combine a change on one pin with + * a read on another, and because the old code did something like + * this. + */ + read_val = qib_read_kreg64(dd, kr_extstatus); + return SYM_FIELD(read_val, EXTStatus, GPIOIn); +} + +/* Enable writes to config EEPROM, if possible. Returns previous state */ +static int qib_7322_eeprom_wen(struct qib_devdata *dd, int wen) +{ + int prev_wen; + u32 mask; + + mask = 1 << QIB_EEPROM_WEN_NUM; + prev_wen = ~gpio_7322_mod(dd, 0, 0, 0) >> QIB_EEPROM_WEN_NUM; + gpio_7322_mod(dd, wen ? 0 : mask, mask, mask); + + return prev_wen & 1; +} + +/* + * Read fundamental info we need to use the chip. These are + * the registers that describe chip capabilities, and are + * saved in shadow registers. + */ +static void get_7322_chip_params(struct qib_devdata *dd) +{ + u64 val; + u32 piobufs; + int mtu; + + dd->palign = qib_read_kreg32(dd, kr_pagealign); + + dd->uregbase = qib_read_kreg32(dd, kr_userregbase); + + dd->rcvtidcnt = qib_read_kreg32(dd, kr_rcvtidcnt); + dd->rcvtidbase = qib_read_kreg32(dd, kr_rcvtidbase); + dd->rcvegrbase = qib_read_kreg32(dd, kr_rcvegrbase); + dd->piobufbase = qib_read_kreg64(dd, kr_sendpiobufbase); + dd->pio2k_bufbase = dd->piobufbase & 0xffffffff; + + val = qib_read_kreg64(dd, kr_sendpiobufcnt); + dd->piobcnt2k = val & ~0U; + dd->piobcnt4k = val >> 32; + val = qib_read_kreg64(dd, kr_sendpiosize); + dd->piosize2k = val & ~0U; + dd->piosize4k = val >> 32; + + mtu = ib_mtu_enum_to_int(qib_ibmtu); + if (mtu == -1) + mtu = QIB_DEFAULT_MTU; + dd->pport[0].ibmtu = (u32)mtu; + dd->pport[1].ibmtu = (u32)mtu; + + /* these may be adjusted in init_chip_wc_pat() */ + dd->pio2kbase = (u32 __iomem *) + ((char __iomem *) dd->kregbase + dd->pio2k_bufbase); + dd->pio4kbase = (u32 __iomem *) + ((char __iomem *) dd->kregbase + + (dd->piobufbase >> 32)); + /* + * 4K buffers take 2 pages; we use roundup just to be + * paranoid; we calculate it once here, rather than on + * ever buf allocate + */ + dd->align4k = ALIGN(dd->piosize4k, dd->palign); + + piobufs = dd->piobcnt4k + dd->piobcnt2k + NUM_VL15_BUFS; + + dd->pioavregs = ALIGN(piobufs, sizeof(u64) * BITS_PER_BYTE / 2) / + (sizeof(u64) * BITS_PER_BYTE / 2); +} + +/* + * The chip base addresses in cspec and cpspec have to be set + * after possible init_chip_wc_pat(), rather than in + * get_7322_chip_params(), so split out as separate function + */ +static void qib_7322_set_baseaddrs(struct qib_devdata *dd) +{ + u32 cregbase; + + cregbase = qib_read_kreg32(dd, kr_counterregbase); + + dd->cspec->cregbase = (u64 __iomem *)(cregbase + + (char __iomem *)dd->kregbase); + + dd->egrtidbase = (u64 __iomem *) + ((char __iomem *) dd->kregbase + dd->rcvegrbase); + + /* port registers are defined as relative to base of chip */ + dd->pport[0].cpspec->kpregbase = + (u64 __iomem *)((char __iomem *)dd->kregbase); + dd->pport[1].cpspec->kpregbase = + (u64 __iomem *)(dd->palign + + (char __iomem *)dd->kregbase); + dd->pport[0].cpspec->cpregbase = + (u64 __iomem *)(qib_read_kreg_port(&dd->pport[0], + kr_counterregbase) + (char __iomem *)dd->kregbase); + dd->pport[1].cpspec->cpregbase = + (u64 __iomem *)(qib_read_kreg_port(&dd->pport[1], + kr_counterregbase) + (char __iomem *)dd->kregbase); +} + +/* + * This is a fairly special-purpose observer, so we only support + * the port-specific parts of SendCtrl + */ + +#define SENDCTRL_SHADOWED (SYM_MASK(SendCtrl_0, SendEnable) | \ + SYM_MASK(SendCtrl_0, SDmaEnable) | \ + SYM_MASK(SendCtrl_0, SDmaIntEnable) | \ + SYM_MASK(SendCtrl_0, SDmaSingleDescriptor) | \ + SYM_MASK(SendCtrl_0, SDmaHalt) | \ + SYM_MASK(SendCtrl_0, IBVLArbiterEn) | \ + SYM_MASK(SendCtrl_0, ForceCreditUpToDate)) + +static int sendctrl_hook(struct qib_devdata *dd, + const struct diag_observer *op, u32 offs, + u64 *data, u64 mask, int only_32) +{ + unsigned long flags; + unsigned idx; + unsigned pidx; + struct qib_pportdata *ppd = NULL; + u64 local_data, all_bits; + + /* + * The fixed correspondence between Physical ports and pports is + * severed. We need to hunt for the ppd that corresponds + * to the offset we got. And we have to do that without admitting + * we know the stride, apparently. + */ + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + u64 __iomem *psptr; + u32 psoffs; + + ppd = dd->pport + pidx; + if (!ppd->cpspec->kpregbase) + continue; + + psptr = ppd->cpspec->kpregbase + krp_sendctrl; + psoffs = (u32) (psptr - dd->kregbase) * sizeof(*psptr); + if (psoffs == offs) + break; + } + + /* If pport is not being managed by driver, just avoid shadows. */ + if (pidx >= dd->num_pports) + ppd = NULL; + + /* In any case, "idx" is flat index in kreg space */ + idx = offs / sizeof(u64); + + all_bits = ~0ULL; + if (only_32) + all_bits >>= 32; + + spin_lock_irqsave(&dd->sendctrl_lock, flags); + if (!ppd || (mask & all_bits) != all_bits) { + /* + * At least some mask bits are zero, so we need + * to read. The judgement call is whether from + * reg or shadow. First-cut: read reg, and complain + * if any bits which should be shadowed are different + * from their shadowed value. + */ + if (only_32) + local_data = (u64)qib_read_kreg32(dd, idx); + else + local_data = qib_read_kreg64(dd, idx); + *data = (local_data & ~mask) | (*data & mask); + } + if (mask) { + /* + * At least some mask bits are one, so we need + * to write, but only shadow some bits. + */ + u64 sval, tval; /* Shadowed, transient */ + + /* + * New shadow val is bits we don't want to touch, + * ORed with bits we do, that are intended for shadow. + */ + if (ppd) { + sval = ppd->p_sendctrl & ~mask; + sval |= *data & SENDCTRL_SHADOWED & mask; + ppd->p_sendctrl = sval; + } else + sval = *data & SENDCTRL_SHADOWED & mask; + tval = sval | (*data & ~SENDCTRL_SHADOWED & mask); + qib_write_kreg(dd, idx, tval); + qib_write_kreg(dd, kr_scratch, 0Ull); + } + spin_unlock_irqrestore(&dd->sendctrl_lock, flags); + return only_32 ? 4 : 8; +} + +static const struct diag_observer sendctrl_0_observer = { + sendctrl_hook, KREG_IDX(SendCtrl_0) * sizeof(u64), + KREG_IDX(SendCtrl_0) * sizeof(u64) +}; + +static const struct diag_observer sendctrl_1_observer = { + sendctrl_hook, KREG_IDX(SendCtrl_1) * sizeof(u64), + KREG_IDX(SendCtrl_1) * sizeof(u64) +}; + +static ushort sdma_fetch_prio = 8; +module_param_named(sdma_fetch_prio, sdma_fetch_prio, ushort, S_IRUGO); +MODULE_PARM_DESC(sdma_fetch_prio, "SDMA descriptor fetch priority"); + +/* Besides logging QSFP events, we set appropriate TxDDS values */ +static void init_txdds_table(struct qib_pportdata *ppd, int override); + +static void qsfp_7322_event(struct work_struct *work) +{ + struct qib_qsfp_data *qd; + struct qib_pportdata *ppd; + unsigned long pwrup; + unsigned long flags; + int ret; + u32 le2; + + qd = container_of(work, struct qib_qsfp_data, work); + ppd = qd->ppd; + pwrup = qd->t_insert + + msecs_to_jiffies(QSFP_PWR_LAG_MSEC - QSFP_MODPRS_LAG_MSEC); + + /* Delay for 20 msecs to allow ModPrs resistor to setup */ + mdelay(QSFP_MODPRS_LAG_MSEC); + + if (!qib_qsfp_mod_present(ppd)) { + ppd->cpspec->qsfp_data.modpresent = 0; + /* Set the physical link to disabled */ + qib_set_ib_7322_lstate(ppd, 0, + QLOGIC_IB_IBCC_LINKINITCMD_DISABLE); + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~QIBL_LINKV; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + } else { + /* + * Some QSFP's not only do not respond until the full power-up + * time, but may behave badly if we try. So hold off responding + * to insertion. + */ + while (1) { + if (time_is_before_jiffies(pwrup)) + break; + msleep(20); + } + + ret = qib_refresh_qsfp_cache(ppd, &qd->cache); + + /* + * Need to change LE2 back to defaults if we couldn't + * read the cable type (to handle cable swaps), so do this + * even on failure to read cable information. We don't + * get here for QME, so IS_QME check not needed here. + */ + if (!ret && !ppd->dd->cspec->r1) { + if (QSFP_IS_ACTIVE_FAR(qd->cache.tech)) + le2 = LE2_QME; + else if (qd->cache.atten[1] >= qib_long_atten && + QSFP_IS_CU(qd->cache.tech)) + le2 = LE2_5m; + else + le2 = LE2_DEFAULT; + } else + le2 = LE2_DEFAULT; + ibsd_wr_allchans(ppd, 13, (le2 << 7), BMASK(9, 7)); + /* + * We always change parameteters, since we can choose + * values for cables without eeproms, and the cable may have + * changed from a cable with full or partial eeprom content + * to one with partial or no content. + */ + init_txdds_table(ppd, 0); + /* The physical link is being re-enabled only when the + * previous state was DISABLED and the VALID bit is not + * set. This should only happen when the cable has been + * physically pulled. */ + if (!ppd->cpspec->qsfp_data.modpresent && + (ppd->lflags & (QIBL_LINKV | QIBL_IB_LINK_DISABLED))) { + ppd->cpspec->qsfp_data.modpresent = 1; + qib_set_ib_7322_lstate(ppd, 0, + QLOGIC_IB_IBCC_LINKINITCMD_SLEEP); + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags |= QIBL_LINKV; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + } + } +} + +/* + * There is little we can do but complain to the user if QSFP + * initialization fails. + */ +static void qib_init_7322_qsfp(struct qib_pportdata *ppd) +{ + unsigned long flags; + struct qib_qsfp_data *qd = &ppd->cpspec->qsfp_data; + struct qib_devdata *dd = ppd->dd; + u64 mod_prs_bit = QSFP_GPIO_MOD_PRS_N; + + mod_prs_bit <<= (QSFP_GPIO_PORT2_SHIFT * ppd->hw_pidx); + qd->ppd = ppd; + qib_qsfp_init(qd, qsfp_7322_event); + spin_lock_irqsave(&dd->cspec->gpio_lock, flags); + dd->cspec->extctrl |= (mod_prs_bit << SYM_LSB(EXTCtrl, GPIOInvert)); + dd->cspec->gpio_mask |= mod_prs_bit; + qib_write_kreg(dd, kr_extctrl, dd->cspec->extctrl); + qib_write_kreg(dd, kr_gpio_mask, dd->cspec->gpio_mask); + spin_unlock_irqrestore(&dd->cspec->gpio_lock, flags); +} + +/* + * called at device initialization time, and also if the txselect + * module parameter is changed. This is used for cables that don't + * have valid QSFP EEPROMs (not present, or attenuation is zero). + * We initialize to the default, then if there is a specific + * unit,port match, we use that (and set it immediately, for the + * current speed, if the link is at INIT or better). + * String format is "default# unit#,port#=# ... u,p=#", separators must + * be a SPACE character. A newline terminates. The u,p=# tuples may + * optionally have "u,p=#,#", where the final # is the H1 value + * The last specific match is used (actually, all are used, but last + * one is the one that winds up set); if none at all, fall back on default. + */ +static void set_no_qsfp_atten(struct qib_devdata *dd, int change) +{ + char *nxt, *str; + u32 pidx, unit, port, deflt, h1; + unsigned long val; + int any = 0, seth1; + int txdds_size; + + str = txselect_list; + + /* default number is validated in setup_txselect() */ + deflt = simple_strtoul(str, &nxt, 0); + for (pidx = 0; pidx < dd->num_pports; ++pidx) + dd->pport[pidx].cpspec->no_eep = deflt; + + txdds_size = TXDDS_TABLE_SZ + TXDDS_EXTRA_SZ; + if (IS_QME(dd) || IS_QMH(dd)) + txdds_size += TXDDS_MFG_SZ; + + while (*nxt && nxt[1]) { + str = ++nxt; + unit = simple_strtoul(str, &nxt, 0); + if (nxt == str || !*nxt || *nxt != ',') { + while (*nxt && *nxt++ != ' ') /* skip to next, if any */ + ; + continue; + } + str = ++nxt; + port = simple_strtoul(str, &nxt, 0); + if (nxt == str || *nxt != '=') { + while (*nxt && *nxt++ != ' ') /* skip to next, if any */ + ; + continue; + } + str = ++nxt; + val = simple_strtoul(str, &nxt, 0); + if (nxt == str) { + while (*nxt && *nxt++ != ' ') /* skip to next, if any */ + ; + continue; + } + if (val >= txdds_size) + continue; + seth1 = 0; + h1 = 0; /* gcc thinks it might be used uninitted */ + if (*nxt == ',' && nxt[1]) { + str = ++nxt; + h1 = (u32)simple_strtoul(str, &nxt, 0); + if (nxt == str) + while (*nxt && *nxt++ != ' ') /* skip */ + ; + else + seth1 = 1; + } + for (pidx = 0; dd->unit == unit && pidx < dd->num_pports; + ++pidx) { + struct qib_pportdata *ppd = &dd->pport[pidx]; + + if (ppd->port != port || !ppd->link_speed_supported) + continue; + ppd->cpspec->no_eep = val; + if (seth1) + ppd->cpspec->h1_val = h1; + /* now change the IBC and serdes, overriding generic */ + init_txdds_table(ppd, 1); + /* Re-enable the physical state machine on mezz boards + * now that the correct settings have been set. + * QSFP boards are handles by the QSFP event handler */ + if (IS_QMH(dd) || IS_QME(dd)) + qib_set_ib_7322_lstate(ppd, 0, + QLOGIC_IB_IBCC_LINKINITCMD_SLEEP); + any++; + } + if (*nxt == '\n') + break; /* done */ + } + if (change && !any) { + /* no specific setting, use the default. + * Change the IBC and serdes, but since it's + * general, don't override specific settings. + */ + for (pidx = 0; pidx < dd->num_pports; ++pidx) + if (dd->pport[pidx].link_speed_supported) + init_txdds_table(&dd->pport[pidx], 0); + } +} + +/* handle the txselect parameter changing */ +static int setup_txselect(const char *str, const struct kernel_param *kp) +{ + struct qib_devdata *dd; + unsigned long index, val; + char *n; + + if (strlen(str) >= ARRAY_SIZE(txselect_list)) { + pr_info("txselect_values string too long\n"); + return -ENOSPC; + } + val = simple_strtoul(str, &n, 0); + if (n == str || val >= (TXDDS_TABLE_SZ + TXDDS_EXTRA_SZ + + TXDDS_MFG_SZ)) { + pr_info("txselect_values must start with a number < %d\n", + TXDDS_TABLE_SZ + TXDDS_EXTRA_SZ + TXDDS_MFG_SZ); + return -EINVAL; + } + strncpy(txselect_list, str, ARRAY_SIZE(txselect_list) - 1); + + xa_for_each(&qib_dev_table, index, dd) + if (dd->deviceid == PCI_DEVICE_ID_QLOGIC_IB_7322) + set_no_qsfp_atten(dd, 1); + return 0; +} + +/* + * Write the final few registers that depend on some of the + * init setup. Done late in init, just before bringing up + * the serdes. + */ +static int qib_late_7322_initreg(struct qib_devdata *dd) +{ + int ret = 0, n; + u64 val; + + qib_write_kreg(dd, kr_rcvhdrentsize, dd->rcvhdrentsize); + qib_write_kreg(dd, kr_rcvhdrsize, dd->rcvhdrsize); + qib_write_kreg(dd, kr_rcvhdrcnt, dd->rcvhdrcnt); + qib_write_kreg(dd, kr_sendpioavailaddr, dd->pioavailregs_phys); + val = qib_read_kreg64(dd, kr_sendpioavailaddr); + if (val != dd->pioavailregs_phys) { + qib_dev_err(dd, + "Catastrophic software error, SendPIOAvailAddr written as %lx, read back as %llx\n", + (unsigned long) dd->pioavailregs_phys, + (unsigned long long) val); + ret = -EINVAL; + } + + n = dd->piobcnt2k + dd->piobcnt4k + NUM_VL15_BUFS; + qib_7322_txchk_change(dd, 0, n, TXCHK_CHG_TYPE_KERN, NULL); + /* driver sends get pkey, lid, etc. checking also, to catch bugs */ + qib_7322_txchk_change(dd, 0, n, TXCHK_CHG_TYPE_ENAB1, NULL); + + qib_register_observer(dd, &sendctrl_0_observer); + qib_register_observer(dd, &sendctrl_1_observer); + + dd->control &= ~QLOGIC_IB_C_SDMAFETCHPRIOEN; + qib_write_kreg(dd, kr_control, dd->control); + /* + * Set SendDmaFetchPriority and init Tx params, including + * QSFP handler on boards that have QSFP. + * First set our default attenuation entry for cables that + * don't have valid attenuation. + */ + set_no_qsfp_atten(dd, 0); + for (n = 0; n < dd->num_pports; ++n) { + struct qib_pportdata *ppd = dd->pport + n; + + qib_write_kreg_port(ppd, krp_senddmaprioritythld, + sdma_fetch_prio & 0xf); + /* Initialize qsfp if present on board. */ + if (dd->flags & QIB_HAS_QSFP) + qib_init_7322_qsfp(ppd); + } + dd->control |= QLOGIC_IB_C_SDMAFETCHPRIOEN; + qib_write_kreg(dd, kr_control, dd->control); + + return ret; +} + +/* per IB port errors. */ +#define SENDCTRL_PIBP (MASK_ACROSS(0, 1) | MASK_ACROSS(3, 3) | \ + MASK_ACROSS(8, 15)) +#define RCVCTRL_PIBP (MASK_ACROSS(0, 17) | MASK_ACROSS(39, 41)) +#define ERRS_PIBP (MASK_ACROSS(57, 58) | MASK_ACROSS(54, 54) | \ + MASK_ACROSS(36, 49) | MASK_ACROSS(29, 34) | MASK_ACROSS(14, 17) | \ + MASK_ACROSS(0, 11)) + +/* + * Write the initialization per-port registers that need to be done at + * driver load and after reset completes (i.e., that aren't done as part + * of other init procedures called from qib_init.c). + * Some of these should be redundant on reset, but play safe. + */ +static void write_7322_init_portregs(struct qib_pportdata *ppd) +{ + u64 val; + int i; + + if (!ppd->link_speed_supported) { + /* no buffer credits for this port */ + for (i = 1; i < 8; i++) + qib_write_kreg_port(ppd, krp_rxcreditvl0 + i, 0); + qib_write_kreg_port(ppd, krp_ibcctrl_b, 0); + qib_write_kreg(ppd->dd, kr_scratch, 0); + return; + } + + /* + * Set the number of supported virtual lanes in IBC, + * for flow control packet handling on unsupported VLs + */ + val = qib_read_kreg_port(ppd, krp_ibsdtestiftx); + val &= ~SYM_MASK(IB_SDTEST_IF_TX_0, VL_CAP); + val |= (u64)(ppd->vls_supported - 1) << + SYM_LSB(IB_SDTEST_IF_TX_0, VL_CAP); + qib_write_kreg_port(ppd, krp_ibsdtestiftx, val); + + qib_write_kreg_port(ppd, krp_rcvbthqp, QIB_KD_QP); + + /* enable tx header checking */ + qib_write_kreg_port(ppd, krp_sendcheckcontrol, IBA7322_SENDCHK_PKEY | + IBA7322_SENDCHK_BTHQP | IBA7322_SENDCHK_SLID | + IBA7322_SENDCHK_RAW_IPV6 | IBA7322_SENDCHK_MINSZ); + + qib_write_kreg_port(ppd, krp_ncmodectrl, + SYM_MASK(IBNCModeCtrl_0, ScrambleCapLocal)); + + /* + * Unconditionally clear the bufmask bits. If SDMA is + * enabled, we'll set them appropriately later. + */ + qib_write_kreg_port(ppd, krp_senddmabufmask0, 0); + qib_write_kreg_port(ppd, krp_senddmabufmask1, 0); + qib_write_kreg_port(ppd, krp_senddmabufmask2, 0); + if (ppd->dd->cspec->r1) + ppd->p_sendctrl |= SYM_MASK(SendCtrl_0, ForceCreditUpToDate); +} + +/* + * Write the initialization per-device registers that need to be done at + * driver load and after reset completes (i.e., that aren't done as part + * of other init procedures called from qib_init.c). Also write per-port + * registers that are affected by overall device config, such as QP mapping + * Some of these should be redundant on reset, but play safe. + */ +static void write_7322_initregs(struct qib_devdata *dd) +{ + struct qib_pportdata *ppd; + int i, pidx; + u64 val; + + /* Set Multicast QPs received by port 2 to map to context one. */ + qib_write_kreg(dd, KREG_IDX(RcvQPMulticastContext_1), 1); + + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + unsigned n, regno; + unsigned long flags; + + if (dd->n_krcv_queues < 2 || + !dd->pport[pidx].link_speed_supported) + continue; + + ppd = &dd->pport[pidx]; + + /* be paranoid against later code motion, etc. */ + spin_lock_irqsave(&dd->cspec->rcvmod_lock, flags); + ppd->p_rcvctrl |= SYM_MASK(RcvCtrl_0, RcvQPMapEnable); + spin_unlock_irqrestore(&dd->cspec->rcvmod_lock, flags); + + /* Initialize QP to context mapping */ + regno = krp_rcvqpmaptable; + val = 0; + if (dd->num_pports > 1) + n = dd->first_user_ctxt / dd->num_pports; + else + n = dd->first_user_ctxt - 1; + for (i = 0; i < 32; ) { + unsigned ctxt; + + if (dd->num_pports > 1) + ctxt = (i % n) * dd->num_pports + pidx; + else if (i % n) + ctxt = (i % n) + 1; + else + ctxt = ppd->hw_pidx; + val |= ctxt << (5 * (i % 6)); + i++; + if (i % 6 == 0) { + qib_write_kreg_port(ppd, regno, val); + val = 0; + regno++; + } + } + qib_write_kreg_port(ppd, regno, val); + } + + /* + * Setup up interrupt mitigation for kernel contexts, but + * not user contexts (user contexts use interrupts when + * stalled waiting for any packet, so want those interrupts + * right away). + */ + for (i = 0; i < dd->first_user_ctxt; i++) { + dd->cspec->rcvavail_timeout[i] = rcv_int_timeout; + qib_write_kreg(dd, kr_rcvavailtimeout + i, rcv_int_timeout); + } + + /* + * Initialize as (disabled) rcvflow tables. Application code + * will setup each flow as it uses the flow. + * Doesn't clear any of the error bits that might be set. + */ + val = TIDFLOW_ERRBITS; /* these are W1C */ + for (i = 0; i < dd->cfgctxts; i++) { + int flow; + + for (flow = 0; flow < NUM_TIDFLOWS_CTXT; flow++) + qib_write_ureg(dd, ur_rcvflowtable+flow, val, i); + } + + /* + * dual cards init to dual port recovery, single port cards to + * the one port. Dual port cards may later adjust to 1 port, + * and then back to dual port if both ports are connected + * */ + if (dd->num_pports) + setup_7322_link_recovery(dd->pport, dd->num_pports > 1); +} + +static int qib_init_7322_variables(struct qib_devdata *dd) +{ + struct qib_pportdata *ppd; + unsigned features, pidx, sbufcnt; + int ret, mtu; + u32 sbufs, updthresh; + resource_size_t vl15off; + + /* pport structs are contiguous, allocated after devdata */ + ppd = (struct qib_pportdata *)(dd + 1); + dd->pport = ppd; + ppd[0].dd = dd; + ppd[1].dd = dd; + + dd->cspec = (struct qib_chip_specific *)(ppd + 2); + + ppd[0].cpspec = (struct qib_chippport_specific *)(dd->cspec + 1); + ppd[1].cpspec = &ppd[0].cpspec[1]; + ppd[0].cpspec->ppd = &ppd[0]; /* for autoneg_7322_work() */ + ppd[1].cpspec->ppd = &ppd[1]; /* for autoneg_7322_work() */ + + spin_lock_init(&dd->cspec->rcvmod_lock); + spin_lock_init(&dd->cspec->gpio_lock); + + /* we haven't yet set QIB_PRESENT, so use read directly */ + dd->revision = readq(&dd->kregbase[kr_revision]); + + if ((dd->revision & 0xffffffffU) == 0xffffffffU) { + qib_dev_err(dd, + "Revision register read failure, giving up initialization\n"); + ret = -ENODEV; + goto bail; + } + dd->flags |= QIB_PRESENT; /* now register routines work */ + + dd->majrev = (u8) SYM_FIELD(dd->revision, Revision_R, ChipRevMajor); + dd->minrev = (u8) SYM_FIELD(dd->revision, Revision_R, ChipRevMinor); + dd->cspec->r1 = dd->minrev == 1; + + get_7322_chip_params(dd); + features = qib_7322_boardname(dd); + + /* now that piobcnt2k and 4k set, we can allocate these */ + sbufcnt = dd->piobcnt2k + dd->piobcnt4k + NUM_VL15_BUFS; + + dd->cspec->sendchkenable = bitmap_zalloc(sbufcnt, GFP_KERNEL); + dd->cspec->sendgrhchk = bitmap_zalloc(sbufcnt, GFP_KERNEL); + dd->cspec->sendibchk = bitmap_zalloc(sbufcnt, GFP_KERNEL); + if (!dd->cspec->sendchkenable || !dd->cspec->sendgrhchk || + !dd->cspec->sendibchk) { + ret = -ENOMEM; + goto bail; + } + + ppd = dd->pport; + + /* + * GPIO bits for TWSI data and clock, + * used for serial EEPROM. + */ + dd->gpio_sda_num = _QIB_GPIO_SDA_NUM; + dd->gpio_scl_num = _QIB_GPIO_SCL_NUM; + dd->twsi_eeprom_dev = QIB_TWSI_EEPROM_DEV; + + dd->flags |= QIB_HAS_INTX | QIB_HAS_LINK_LATENCY | + QIB_NODMA_RTAIL | QIB_HAS_VLSUPP | QIB_HAS_HDRSUPP | + QIB_HAS_THRESH_UPDATE | + (sdma_idle_cnt ? QIB_HAS_SDMA_TIMEOUT : 0); + dd->flags |= qib_special_trigger ? + QIB_USE_SPCL_TRIG : QIB_HAS_SEND_DMA; + + /* + * Setup initial values. These may change when PAT is enabled, but + * we need these to do initial chip register accesses. + */ + qib_7322_set_baseaddrs(dd); + + mtu = ib_mtu_enum_to_int(qib_ibmtu); + if (mtu == -1) + mtu = QIB_DEFAULT_MTU; + + dd->cspec->int_enable_mask = QIB_I_BITSEXTANT; + /* all hwerrors become interrupts, unless special purposed */ + dd->cspec->hwerrmask = ~0ULL; + /* link_recovery setup causes these errors, so ignore them, + * other than clearing them when they occur */ + dd->cspec->hwerrmask &= + ~(SYM_MASK(HwErrMask, IBSerdesPClkNotDetectMask_0) | + SYM_MASK(HwErrMask, IBSerdesPClkNotDetectMask_1) | + HWE_MASK(LATriggered)); + + for (pidx = 0; pidx < NUM_IB_PORTS; ++pidx) { + struct qib_chippport_specific *cp = ppd->cpspec; + + ppd->link_speed_supported = features & PORT_SPD_CAP; + features >>= PORT_SPD_CAP_SHIFT; + if (!ppd->link_speed_supported) { + /* single port mode (7340, or configured) */ + dd->skip_kctxt_mask |= 1 << pidx; + if (pidx == 0) { + /* Make sure port is disabled. */ + qib_write_kreg_port(ppd, krp_rcvctrl, 0); + qib_write_kreg_port(ppd, krp_ibcctrl_a, 0); + ppd[0] = ppd[1]; + dd->cspec->hwerrmask &= ~(SYM_MASK(HwErrMask, + IBSerdesPClkNotDetectMask_0) + | SYM_MASK(HwErrMask, + SDmaMemReadErrMask_0)); + dd->cspec->int_enable_mask &= ~( + SYM_MASK(IntMask, SDmaCleanupDoneMask_0) | + SYM_MASK(IntMask, SDmaIdleIntMask_0) | + SYM_MASK(IntMask, SDmaProgressIntMask_0) | + SYM_MASK(IntMask, SDmaIntMask_0) | + SYM_MASK(IntMask, ErrIntMask_0) | + SYM_MASK(IntMask, SendDoneIntMask_0)); + } else { + /* Make sure port is disabled. */ + qib_write_kreg_port(ppd, krp_rcvctrl, 0); + qib_write_kreg_port(ppd, krp_ibcctrl_a, 0); + dd->cspec->hwerrmask &= ~(SYM_MASK(HwErrMask, + IBSerdesPClkNotDetectMask_1) + | SYM_MASK(HwErrMask, + SDmaMemReadErrMask_1)); + dd->cspec->int_enable_mask &= ~( + SYM_MASK(IntMask, SDmaCleanupDoneMask_1) | + SYM_MASK(IntMask, SDmaIdleIntMask_1) | + SYM_MASK(IntMask, SDmaProgressIntMask_1) | + SYM_MASK(IntMask, SDmaIntMask_1) | + SYM_MASK(IntMask, ErrIntMask_1) | + SYM_MASK(IntMask, SendDoneIntMask_1)); + } + continue; + } + + dd->num_pports++; + ret = qib_init_pportdata(ppd, dd, pidx, dd->num_pports); + if (ret) { + dd->num_pports--; + goto bail; + } + + ppd->link_width_supported = IB_WIDTH_1X | IB_WIDTH_4X; + ppd->link_width_enabled = IB_WIDTH_4X; + ppd->link_speed_enabled = ppd->link_speed_supported; + /* + * Set the initial values to reasonable default, will be set + * for real when link is up. + */ + ppd->link_width_active = IB_WIDTH_4X; + ppd->link_speed_active = QIB_IB_SDR; + ppd->delay_mult = ib_rate_to_delay[IB_RATE_10_GBPS]; + switch (qib_num_cfg_vls) { + case 1: + ppd->vls_supported = IB_VL_VL0; + break; + case 2: + ppd->vls_supported = IB_VL_VL0_1; + break; + default: + qib_devinfo(dd->pcidev, + "Invalid num_vls %u, using 4 VLs\n", + qib_num_cfg_vls); + qib_num_cfg_vls = 4; + fallthrough; + case 4: + ppd->vls_supported = IB_VL_VL0_3; + break; + case 8: + if (mtu <= 2048) + ppd->vls_supported = IB_VL_VL0_7; + else { + qib_devinfo(dd->pcidev, + "Invalid num_vls %u for MTU %d , using 4 VLs\n", + qib_num_cfg_vls, mtu); + ppd->vls_supported = IB_VL_VL0_3; + qib_num_cfg_vls = 4; + } + break; + } + ppd->vls_operational = ppd->vls_supported; + + init_waitqueue_head(&cp->autoneg_wait); + INIT_DELAYED_WORK(&cp->autoneg_work, + autoneg_7322_work); + if (ppd->dd->cspec->r1) + INIT_DELAYED_WORK(&cp->ipg_work, ipg_7322_work); + + /* + * For Mez and similar cards, no qsfp info, so do + * the "cable info" setup here. Can be overridden + * in adapter-specific routines. + */ + if (!(dd->flags & QIB_HAS_QSFP)) { + if (!IS_QMH(dd) && !IS_QME(dd)) + qib_devinfo(dd->pcidev, + "IB%u:%u: Unknown mezzanine card type\n", + dd->unit, ppd->port); + cp->h1_val = IS_QMH(dd) ? H1_FORCE_QMH : H1_FORCE_QME; + /* + * Choose center value as default tx serdes setting + * until changed through module parameter. + */ + ppd->cpspec->no_eep = IS_QMH(dd) ? + TXDDS_TABLE_SZ + 2 : TXDDS_TABLE_SZ + 4; + } else + cp->h1_val = H1_FORCE_VAL; + + /* Avoid writes to chip for mini_init */ + if (!qib_mini_init) + write_7322_init_portregs(ppd); + + timer_setup(&cp->chase_timer, reenable_chase, 0); + + ppd++; + } + + dd->rcvhdrentsize = qib_rcvhdrentsize ? + qib_rcvhdrentsize : QIB_RCVHDR_ENTSIZE; + dd->rcvhdrsize = qib_rcvhdrsize ? + qib_rcvhdrsize : QIB_DFLT_RCVHDRSIZE; + dd->rhf_offset = dd->rcvhdrentsize - sizeof(u64) / sizeof(u32); + + /* we always allocate at least 2048 bytes for eager buffers */ + dd->rcvegrbufsize = max(mtu, 2048); + dd->rcvegrbufsize_shift = ilog2(dd->rcvegrbufsize); + + qib_7322_tidtemplate(dd); + + /* + * We can request a receive interrupt for 1 or + * more packets from current offset. + */ + dd->rhdrhead_intr_off = + (u64) rcv_int_count << IBA7322_HDRHEAD_PKTINT_SHIFT; + + /* setup the stats timer; the add_timer is done at end of init */ + timer_setup(&dd->stats_timer, qib_get_7322_faststats, 0); + + dd->ureg_align = 0x10000; /* 64KB alignment */ + + dd->piosize2kmax_dwords = dd->piosize2k >> 2; + + qib_7322_config_ctxts(dd); + qib_set_ctxtcnt(dd); + + /* + * We do not set WC on the VL15 buffers to avoid + * a rare problem with unaligned writes from + * interrupt-flushed store buffers, so we need + * to map those separately here. We can't solve + * this for the rarely used mtrr case. + */ + ret = init_chip_wc_pat(dd, 0); + if (ret) + goto bail; + + /* vl15 buffers start just after the 4k buffers */ + vl15off = dd->physaddr + (dd->piobufbase >> 32) + + dd->piobcnt4k * dd->align4k; + dd->piovl15base = ioremap(vl15off, + NUM_VL15_BUFS * dd->align4k); + if (!dd->piovl15base) { + ret = -ENOMEM; + goto bail; + } + + qib_7322_set_baseaddrs(dd); /* set chip access pointers now */ + + ret = 0; + if (qib_mini_init) + goto bail; + if (!dd->num_pports) { + qib_dev_err(dd, "No ports enabled, giving up initialization\n"); + goto bail; /* no error, so can still figure out why err */ + } + + write_7322_initregs(dd); + ret = qib_create_ctxts(dd); + init_7322_cntrnames(dd); + + updthresh = 8U; /* update threshold */ + + /* use all of 4KB buffers for the kernel SDMA, zero if !SDMA. + * reserve the update threshold amount for other kernel use, such + * as sending SMI, MAD, and ACKs, or 3, whichever is greater, + * unless we aren't enabling SDMA, in which case we want to use + * all the 4k bufs for the kernel. + * if this was less than the update threshold, we could wait + * a long time for an update. Coded this way because we + * sometimes change the update threshold for various reasons, + * and we want this to remain robust. + */ + if (dd->flags & QIB_HAS_SEND_DMA) { + dd->cspec->sdmabufcnt = dd->piobcnt4k; + sbufs = updthresh > 3 ? updthresh : 3; + } else { + dd->cspec->sdmabufcnt = 0; + sbufs = dd->piobcnt4k; + } + dd->cspec->lastbuf_for_pio = dd->piobcnt2k + dd->piobcnt4k - + dd->cspec->sdmabufcnt; + dd->lastctxt_piobuf = dd->cspec->lastbuf_for_pio - sbufs; + dd->cspec->lastbuf_for_pio--; /* range is <= , not < */ + dd->last_pio = dd->cspec->lastbuf_for_pio; + dd->pbufsctxt = (dd->cfgctxts > dd->first_user_ctxt) ? + dd->lastctxt_piobuf / (dd->cfgctxts - dd->first_user_ctxt) : 0; + + /* + * If we have 16 user contexts, we will have 7 sbufs + * per context, so reduce the update threshold to match. We + * want to update before we actually run out, at low pbufs/ctxt + * so give ourselves some margin. + */ + if (dd->pbufsctxt >= 2 && dd->pbufsctxt - 2 < updthresh) + updthresh = dd->pbufsctxt - 2; + dd->cspec->updthresh_dflt = updthresh; + dd->cspec->updthresh = updthresh; + + /* before full enable, no interrupts, no locking needed */ + dd->sendctrl |= ((updthresh & SYM_RMASK(SendCtrl, AvailUpdThld)) + << SYM_LSB(SendCtrl, AvailUpdThld)) | + SYM_MASK(SendCtrl, SendBufAvailPad64Byte); + + dd->psxmitwait_supported = 1; + dd->psxmitwait_check_rate = QIB_7322_PSXMITWAIT_CHECK_RATE; +bail: + if (!dd->ctxtcnt) + dd->ctxtcnt = 1; /* for other initialization code */ + + return ret; +} + +static u32 __iomem *qib_7322_getsendbuf(struct qib_pportdata *ppd, u64 pbc, + u32 *pbufnum) +{ + u32 first, last, plen = pbc & QIB_PBC_LENGTH_MASK; + struct qib_devdata *dd = ppd->dd; + + /* last is same for 2k and 4k, because we use 4k if all 2k busy */ + if (pbc & PBC_7322_VL15_SEND) { + first = dd->piobcnt2k + dd->piobcnt4k + ppd->hw_pidx; + last = first; + } else { + if ((plen + 1) > dd->piosize2kmax_dwords) + first = dd->piobcnt2k; + else + first = 0; + last = dd->cspec->lastbuf_for_pio; + } + return qib_getsendbuf_range(dd, pbufnum, first, last); +} + +static void qib_set_cntr_7322_sample(struct qib_pportdata *ppd, u32 intv, + u32 start) +{ + qib_write_kreg_port(ppd, krp_psinterval, intv); + qib_write_kreg_port(ppd, krp_psstart, start); +} + +/* + * Must be called with sdma_lock held, or before init finished. + */ +static void qib_sdma_set_7322_desc_cnt(struct qib_pportdata *ppd, unsigned cnt) +{ + qib_write_kreg_port(ppd, krp_senddmadesccnt, cnt); +} + +/* + * sdma_lock should be acquired before calling this routine + */ +static void dump_sdma_7322_state(struct qib_pportdata *ppd) +{ + u64 reg, reg1, reg2; + + reg = qib_read_kreg_port(ppd, krp_senddmastatus); + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA senddmastatus: 0x%016llx\n", reg); + + reg = qib_read_kreg_port(ppd, krp_sendctrl); + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA sendctrl: 0x%016llx\n", reg); + + reg = qib_read_kreg_port(ppd, krp_senddmabase); + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA senddmabase: 0x%016llx\n", reg); + + reg = qib_read_kreg_port(ppd, krp_senddmabufmask0); + reg1 = qib_read_kreg_port(ppd, krp_senddmabufmask1); + reg2 = qib_read_kreg_port(ppd, krp_senddmabufmask2); + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA senddmabufmask 0:%llx 1:%llx 2:%llx\n", + reg, reg1, reg2); + + /* get bufuse bits, clear them, and print them again if non-zero */ + reg = qib_read_kreg_port(ppd, krp_senddmabuf_use0); + qib_write_kreg_port(ppd, krp_senddmabuf_use0, reg); + reg1 = qib_read_kreg_port(ppd, krp_senddmabuf_use1); + qib_write_kreg_port(ppd, krp_senddmabuf_use0, reg1); + reg2 = qib_read_kreg_port(ppd, krp_senddmabuf_use2); + qib_write_kreg_port(ppd, krp_senddmabuf_use0, reg2); + /* 0 and 1 should always be zero, so print as short form */ + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA current senddmabuf_use 0:%llx 1:%llx 2:%llx\n", + reg, reg1, reg2); + reg = qib_read_kreg_port(ppd, krp_senddmabuf_use0); + reg1 = qib_read_kreg_port(ppd, krp_senddmabuf_use1); + reg2 = qib_read_kreg_port(ppd, krp_senddmabuf_use2); + /* 0 and 1 should always be zero, so print as short form */ + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA cleared senddmabuf_use 0:%llx 1:%llx 2:%llx\n", + reg, reg1, reg2); + + reg = qib_read_kreg_port(ppd, krp_senddmatail); + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA senddmatail: 0x%016llx\n", reg); + + reg = qib_read_kreg_port(ppd, krp_senddmahead); + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA senddmahead: 0x%016llx\n", reg); + + reg = qib_read_kreg_port(ppd, krp_senddmaheadaddr); + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA senddmaheadaddr: 0x%016llx\n", reg); + + reg = qib_read_kreg_port(ppd, krp_senddmalengen); + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA senddmalengen: 0x%016llx\n", reg); + + reg = qib_read_kreg_port(ppd, krp_senddmadesccnt); + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA senddmadesccnt: 0x%016llx\n", reg); + + reg = qib_read_kreg_port(ppd, krp_senddmaidlecnt); + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA senddmaidlecnt: 0x%016llx\n", reg); + + reg = qib_read_kreg_port(ppd, krp_senddmaprioritythld); + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA senddmapriorityhld: 0x%016llx\n", reg); + + reg = qib_read_kreg_port(ppd, krp_senddmareloadcnt); + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA senddmareloadcnt: 0x%016llx\n", reg); + + dump_sdma_state(ppd); +} + +static struct sdma_set_state_action sdma_7322_action_table[] = { + [qib_sdma_state_s00_hw_down] = { + .go_s99_running_tofalse = 1, + .op_enable = 0, + .op_intenable = 0, + .op_halt = 0, + .op_drain = 0, + }, + [qib_sdma_state_s10_hw_start_up_wait] = { + .op_enable = 0, + .op_intenable = 1, + .op_halt = 1, + .op_drain = 0, + }, + [qib_sdma_state_s20_idle] = { + .op_enable = 1, + .op_intenable = 1, + .op_halt = 1, + .op_drain = 0, + }, + [qib_sdma_state_s30_sw_clean_up_wait] = { + .op_enable = 0, + .op_intenable = 1, + .op_halt = 1, + .op_drain = 0, + }, + [qib_sdma_state_s40_hw_clean_up_wait] = { + .op_enable = 1, + .op_intenable = 1, + .op_halt = 1, + .op_drain = 0, + }, + [qib_sdma_state_s50_hw_halt_wait] = { + .op_enable = 1, + .op_intenable = 1, + .op_halt = 1, + .op_drain = 1, + }, + [qib_sdma_state_s99_running] = { + .op_enable = 1, + .op_intenable = 1, + .op_halt = 0, + .op_drain = 0, + .go_s99_running_totrue = 1, + }, +}; + +static void qib_7322_sdma_init_early(struct qib_pportdata *ppd) +{ + ppd->sdma_state.set_state_action = sdma_7322_action_table; +} + +static int init_sdma_7322_regs(struct qib_pportdata *ppd) +{ + struct qib_devdata *dd = ppd->dd; + unsigned lastbuf, erstbuf; + u64 senddmabufmask[3] = { 0 }; + int n; + + qib_write_kreg_port(ppd, krp_senddmabase, ppd->sdma_descq_phys); + qib_sdma_7322_setlengen(ppd); + qib_sdma_update_7322_tail(ppd, 0); /* Set SendDmaTail */ + qib_write_kreg_port(ppd, krp_senddmareloadcnt, sdma_idle_cnt); + qib_write_kreg_port(ppd, krp_senddmadesccnt, 0); + qib_write_kreg_port(ppd, krp_senddmaheadaddr, ppd->sdma_head_phys); + + if (dd->num_pports) + n = dd->cspec->sdmabufcnt / dd->num_pports; /* no remainder */ + else + n = dd->cspec->sdmabufcnt; /* failsafe for init */ + erstbuf = (dd->piobcnt2k + dd->piobcnt4k) - + ((dd->num_pports == 1 || ppd->port == 2) ? n : + dd->cspec->sdmabufcnt); + lastbuf = erstbuf + n; + + ppd->sdma_state.first_sendbuf = erstbuf; + ppd->sdma_state.last_sendbuf = lastbuf; + for (; erstbuf < lastbuf; ++erstbuf) { + unsigned word = erstbuf / BITS_PER_LONG; + unsigned bit = erstbuf & (BITS_PER_LONG - 1); + + senddmabufmask[word] |= 1ULL << bit; + } + qib_write_kreg_port(ppd, krp_senddmabufmask0, senddmabufmask[0]); + qib_write_kreg_port(ppd, krp_senddmabufmask1, senddmabufmask[1]); + qib_write_kreg_port(ppd, krp_senddmabufmask2, senddmabufmask[2]); + return 0; +} + +/* sdma_lock must be held */ +static u16 qib_sdma_7322_gethead(struct qib_pportdata *ppd) +{ + struct qib_devdata *dd = ppd->dd; + int sane; + int use_dmahead; + u16 swhead; + u16 swtail; + u16 cnt; + u16 hwhead; + + use_dmahead = __qib_sdma_running(ppd) && + (dd->flags & QIB_HAS_SDMA_TIMEOUT); +retry: + hwhead = use_dmahead ? + (u16) le64_to_cpu(*ppd->sdma_head_dma) : + (u16) qib_read_kreg_port(ppd, krp_senddmahead); + + swhead = ppd->sdma_descq_head; + swtail = ppd->sdma_descq_tail; + cnt = ppd->sdma_descq_cnt; + + if (swhead < swtail) + /* not wrapped */ + sane = (hwhead >= swhead) & (hwhead <= swtail); + else if (swhead > swtail) + /* wrapped around */ + sane = ((hwhead >= swhead) && (hwhead < cnt)) || + (hwhead <= swtail); + else + /* empty */ + sane = (hwhead == swhead); + + if (unlikely(!sane)) { + if (use_dmahead) { + /* try one more time, directly from the register */ + use_dmahead = 0; + goto retry; + } + /* proceed as if no progress */ + hwhead = swhead; + } + + return hwhead; +} + +static int qib_sdma_7322_busy(struct qib_pportdata *ppd) +{ + u64 hwstatus = qib_read_kreg_port(ppd, krp_senddmastatus); + + return (hwstatus & SYM_MASK(SendDmaStatus_0, ScoreBoardDrainInProg)) || + (hwstatus & SYM_MASK(SendDmaStatus_0, HaltInProg)) || + !(hwstatus & SYM_MASK(SendDmaStatus_0, InternalSDmaHalt)) || + !(hwstatus & SYM_MASK(SendDmaStatus_0, ScbEmpty)); +} + +/* + * Compute the amount of delay before sending the next packet if the + * port's send rate differs from the static rate set for the QP. + * The delay affects the next packet and the amount of the delay is + * based on the length of the this packet. + */ +static u32 qib_7322_setpbc_control(struct qib_pportdata *ppd, u32 plen, + u8 srate, u8 vl) +{ + u8 snd_mult = ppd->delay_mult; + u8 rcv_mult = ib_rate_to_delay[srate]; + u32 ret; + + ret = rcv_mult > snd_mult ? ((plen + 1) >> 1) * snd_mult : 0; + + /* Indicate VL15, else set the VL in the control word */ + if (vl == 15) + ret |= PBC_7322_VL15_SEND_CTRL; + else + ret |= vl << PBC_VL_NUM_LSB; + ret |= ((u32)(ppd->hw_pidx)) << PBC_PORT_SEL_LSB; + + return ret; +} + +/* + * Enable the per-port VL15 send buffers for use. + * They follow the rest of the buffers, without a config parameter. + * This was in initregs, but that is done before the shadow + * is set up, and this has to be done after the shadow is + * set up. + */ +static void qib_7322_initvl15_bufs(struct qib_devdata *dd) +{ + unsigned vl15bufs; + + vl15bufs = dd->piobcnt2k + dd->piobcnt4k; + qib_chg_pioavailkernel(dd, vl15bufs, NUM_VL15_BUFS, + TXCHK_CHG_TYPE_KERN, NULL); +} + +static void qib_7322_init_ctxt(struct qib_ctxtdata *rcd) +{ + if (rcd->ctxt < NUM_IB_PORTS) { + if (rcd->dd->num_pports > 1) { + rcd->rcvegrcnt = KCTXT0_EGRCNT / 2; + rcd->rcvegr_tid_base = rcd->ctxt ? rcd->rcvegrcnt : 0; + } else { + rcd->rcvegrcnt = KCTXT0_EGRCNT; + rcd->rcvegr_tid_base = 0; + } + } else { + rcd->rcvegrcnt = rcd->dd->cspec->rcvegrcnt; + rcd->rcvegr_tid_base = KCTXT0_EGRCNT + + (rcd->ctxt - NUM_IB_PORTS) * rcd->rcvegrcnt; + } +} + +#define QTXSLEEPS 5000 +static void qib_7322_txchk_change(struct qib_devdata *dd, u32 start, + u32 len, u32 which, struct qib_ctxtdata *rcd) +{ + int i; + const int last = start + len - 1; + const int lastr = last / BITS_PER_LONG; + u32 sleeps = 0; + int wait = rcd != NULL; + unsigned long flags; + + while (wait) { + unsigned long shadow = 0; + int cstart, previ = -1; + + /* + * when flipping from kernel to user, we can't change + * the checking type if the buffer is allocated to the + * driver. It's OK the other direction, because it's + * from close, and we have just disarm'ed all the + * buffers. All the kernel to kernel changes are also + * OK. + */ + for (cstart = start; cstart <= last; cstart++) { + i = ((2 * cstart) + QLOGIC_IB_SENDPIOAVAIL_BUSY_SHIFT) + / BITS_PER_LONG; + if (i != previ) { + shadow = (unsigned long) + le64_to_cpu(dd->pioavailregs_dma[i]); + previ = i; + } + if (test_bit(((2 * cstart) + + QLOGIC_IB_SENDPIOAVAIL_BUSY_SHIFT) + % BITS_PER_LONG, &shadow)) + break; + } + + if (cstart > last) + break; + + if (sleeps == QTXSLEEPS) + break; + /* make sure we see an updated copy next time around */ + sendctrl_7322_mod(dd->pport, QIB_SENDCTRL_AVAIL_BLIP); + sleeps++; + msleep(20); + } + + switch (which) { + case TXCHK_CHG_TYPE_DIS1: + /* + * disable checking on a range; used by diags; just + * one buffer, but still written generically + */ + for (i = start; i <= last; i++) + clear_bit(i, dd->cspec->sendchkenable); + break; + + case TXCHK_CHG_TYPE_ENAB1: + /* + * (re)enable checking on a range; used by diags; just + * one buffer, but still written generically; read + * scratch to be sure buffer actually triggered, not + * just flushed from processor. + */ + qib_read_kreg32(dd, kr_scratch); + for (i = start; i <= last; i++) + set_bit(i, dd->cspec->sendchkenable); + break; + + case TXCHK_CHG_TYPE_KERN: + /* usable by kernel */ + for (i = start; i <= last; i++) { + set_bit(i, dd->cspec->sendibchk); + clear_bit(i, dd->cspec->sendgrhchk); + } + spin_lock_irqsave(&dd->uctxt_lock, flags); + /* see if we need to raise avail update threshold */ + for (i = dd->first_user_ctxt; + dd->cspec->updthresh != dd->cspec->updthresh_dflt + && i < dd->cfgctxts; i++) + if (dd->rcd[i] && dd->rcd[i]->subctxt_cnt && + ((dd->rcd[i]->piocnt / dd->rcd[i]->subctxt_cnt) - 1) + < dd->cspec->updthresh_dflt) + break; + spin_unlock_irqrestore(&dd->uctxt_lock, flags); + if (i == dd->cfgctxts) { + spin_lock_irqsave(&dd->sendctrl_lock, flags); + dd->cspec->updthresh = dd->cspec->updthresh_dflt; + dd->sendctrl &= ~SYM_MASK(SendCtrl, AvailUpdThld); + dd->sendctrl |= (dd->cspec->updthresh & + SYM_RMASK(SendCtrl, AvailUpdThld)) << + SYM_LSB(SendCtrl, AvailUpdThld); + spin_unlock_irqrestore(&dd->sendctrl_lock, flags); + sendctrl_7322_mod(dd->pport, QIB_SENDCTRL_AVAIL_BLIP); + } + break; + + case TXCHK_CHG_TYPE_USER: + /* for user process */ + for (i = start; i <= last; i++) { + clear_bit(i, dd->cspec->sendibchk); + set_bit(i, dd->cspec->sendgrhchk); + } + spin_lock_irqsave(&dd->sendctrl_lock, flags); + if (rcd && rcd->subctxt_cnt && ((rcd->piocnt + / rcd->subctxt_cnt) - 1) < dd->cspec->updthresh) { + dd->cspec->updthresh = (rcd->piocnt / + rcd->subctxt_cnt) - 1; + dd->sendctrl &= ~SYM_MASK(SendCtrl, AvailUpdThld); + dd->sendctrl |= (dd->cspec->updthresh & + SYM_RMASK(SendCtrl, AvailUpdThld)) + << SYM_LSB(SendCtrl, AvailUpdThld); + spin_unlock_irqrestore(&dd->sendctrl_lock, flags); + sendctrl_7322_mod(dd->pport, QIB_SENDCTRL_AVAIL_BLIP); + } else + spin_unlock_irqrestore(&dd->sendctrl_lock, flags); + break; + + default: + break; + } + + for (i = start / BITS_PER_LONG; which >= 2 && i <= lastr; ++i) + qib_write_kreg(dd, kr_sendcheckmask + i, + dd->cspec->sendchkenable[i]); + + for (i = start / BITS_PER_LONG; which < 2 && i <= lastr; ++i) { + qib_write_kreg(dd, kr_sendgrhcheckmask + i, + dd->cspec->sendgrhchk[i]); + qib_write_kreg(dd, kr_sendibpktmask + i, + dd->cspec->sendibchk[i]); + } + + /* + * Be sure whatever we did was seen by the chip and acted upon, + * before we return. Mostly important for which >= 2. + */ + qib_read_kreg32(dd, kr_scratch); +} + + +/* useful for trigger analyzers, etc. */ +static void writescratch(struct qib_devdata *dd, u32 val) +{ + qib_write_kreg(dd, kr_scratch, val); +} + +/* Dummy for now, use chip regs soon */ +static int qib_7322_tempsense_rd(struct qib_devdata *dd, int regnum) +{ + return -ENXIO; +} + +/** + * qib_init_iba7322_funcs - set up the chip-specific function pointers + * @pdev: the pci_dev for qlogic_ib device + * @ent: pci_device_id struct for this dev + * + * Also allocates, inits, and returns the devdata struct for this + * device instance + * + * This is global, and is called directly at init to set up the + * chip-specific function pointers for later use. + */ +struct qib_devdata *qib_init_iba7322_funcs(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct qib_devdata *dd; + int ret, i; + u32 tabsize, actual_cnt = 0; + + dd = qib_alloc_devdata(pdev, + NUM_IB_PORTS * sizeof(struct qib_pportdata) + + sizeof(struct qib_chip_specific) + + NUM_IB_PORTS * sizeof(struct qib_chippport_specific)); + if (IS_ERR(dd)) + goto bail; + + dd->f_bringup_serdes = qib_7322_bringup_serdes; + dd->f_cleanup = qib_setup_7322_cleanup; + dd->f_clear_tids = qib_7322_clear_tids; + dd->f_free_irq = qib_7322_free_irq; + dd->f_get_base_info = qib_7322_get_base_info; + dd->f_get_msgheader = qib_7322_get_msgheader; + dd->f_getsendbuf = qib_7322_getsendbuf; + dd->f_gpio_mod = gpio_7322_mod; + dd->f_eeprom_wen = qib_7322_eeprom_wen; + dd->f_hdrqempty = qib_7322_hdrqempty; + dd->f_ib_updown = qib_7322_ib_updown; + dd->f_init_ctxt = qib_7322_init_ctxt; + dd->f_initvl15_bufs = qib_7322_initvl15_bufs; + dd->f_intr_fallback = qib_7322_intr_fallback; + dd->f_late_initreg = qib_late_7322_initreg; + dd->f_setpbc_control = qib_7322_setpbc_control; + dd->f_portcntr = qib_portcntr_7322; + dd->f_put_tid = qib_7322_put_tid; + dd->f_quiet_serdes = qib_7322_mini_quiet_serdes; + dd->f_rcvctrl = rcvctrl_7322_mod; + dd->f_read_cntrs = qib_read_7322cntrs; + dd->f_read_portcntrs = qib_read_7322portcntrs; + dd->f_reset = qib_do_7322_reset; + dd->f_init_sdma_regs = init_sdma_7322_regs; + dd->f_sdma_busy = qib_sdma_7322_busy; + dd->f_sdma_gethead = qib_sdma_7322_gethead; + dd->f_sdma_sendctrl = qib_7322_sdma_sendctrl; + dd->f_sdma_set_desc_cnt = qib_sdma_set_7322_desc_cnt; + dd->f_sdma_update_tail = qib_sdma_update_7322_tail; + dd->f_sendctrl = sendctrl_7322_mod; + dd->f_set_armlaunch = qib_set_7322_armlaunch; + dd->f_set_cntr_sample = qib_set_cntr_7322_sample; + dd->f_iblink_state = qib_7322_iblink_state; + dd->f_ibphys_portstate = qib_7322_phys_portstate; + dd->f_get_ib_cfg = qib_7322_get_ib_cfg; + dd->f_set_ib_cfg = qib_7322_set_ib_cfg; + dd->f_set_ib_loopback = qib_7322_set_loopback; + dd->f_get_ib_table = qib_7322_get_ib_table; + dd->f_set_ib_table = qib_7322_set_ib_table; + dd->f_set_intr_state = qib_7322_set_intr_state; + dd->f_setextled = qib_setup_7322_setextled; + dd->f_txchk_change = qib_7322_txchk_change; + dd->f_update_usrhead = qib_update_7322_usrhead; + dd->f_wantpiobuf_intr = qib_wantpiobuf_7322_intr; + dd->f_xgxs_reset = qib_7322_mini_pcs_reset; + dd->f_sdma_hw_clean_up = qib_7322_sdma_hw_clean_up; + dd->f_sdma_hw_start_up = qib_7322_sdma_hw_start_up; + dd->f_sdma_init_early = qib_7322_sdma_init_early; + dd->f_writescratch = writescratch; + dd->f_tempsense_rd = qib_7322_tempsense_rd; +#ifdef CONFIG_INFINIBAND_QIB_DCA + dd->f_notify_dca = qib_7322_notify_dca; +#endif + /* + * Do remaining PCIe setup and save PCIe values in dd. + * Any error printing is already done by the init code. + * On return, we have the chip mapped, but chip registers + * are not set up until start of qib_init_7322_variables. + */ + ret = qib_pcie_ddinit(dd, pdev, ent); + if (ret < 0) + goto bail_free; + + /* initialize chip-specific variables */ + ret = qib_init_7322_variables(dd); + if (ret) + goto bail_cleanup; + + if (qib_mini_init || !dd->num_pports) + goto bail; + + /* + * Determine number of vectors we want; depends on port count + * and number of configured kernel receive queues actually used. + * Should also depend on whether sdma is enabled or not, but + * that's such a rare testing case it's not worth worrying about. + */ + tabsize = dd->first_user_ctxt + ARRAY_SIZE(irq_table); + for (i = 0; i < tabsize; i++) + if ((i < ARRAY_SIZE(irq_table) && + irq_table[i].port <= dd->num_pports) || + (i >= ARRAY_SIZE(irq_table) && + dd->rcd[i - ARRAY_SIZE(irq_table)])) + actual_cnt++; + /* reduce by ctxt's < 2 */ + if (qib_krcvq01_no_msi) + actual_cnt -= dd->num_pports; + + tabsize = actual_cnt; + dd->cspec->msix_entries = kcalloc(tabsize, + sizeof(struct qib_msix_entry), + GFP_KERNEL); + if (!dd->cspec->msix_entries) + tabsize = 0; + + if (qib_pcie_params(dd, 8, &tabsize)) + qib_dev_err(dd, + "Failed to setup PCIe or interrupts; continuing anyway\n"); + /* may be less than we wanted, if not enough available */ + dd->cspec->num_msix_entries = tabsize; + + /* setup interrupt handler */ + qib_setup_7322_interrupt(dd, 1); + + /* clear diagctrl register, in case diags were running and crashed */ + qib_write_kreg(dd, kr_hwdiagctrl, 0); +#ifdef CONFIG_INFINIBAND_QIB_DCA + if (!dca_add_requester(&pdev->dev)) { + qib_devinfo(dd->pcidev, "DCA enabled\n"); + dd->flags |= QIB_DCA_ENABLED; + qib_setup_dca(dd); + } +#endif + goto bail; + +bail_cleanup: + qib_pcie_ddcleanup(dd); +bail_free: + qib_free_devdata(dd); + dd = ERR_PTR(ret); +bail: + return dd; +} + +/* + * Set the table entry at the specified index from the table specifed. + * There are 3 * TXDDS_TABLE_SZ entries in all per port, with the first + * TXDDS_TABLE_SZ for SDR, the next for DDR, and the last for QDR. + * 'idx' below addresses the correct entry, while its 4 LSBs select the + * corresponding entry (one of TXDDS_TABLE_SZ) from the selected table. + */ +#define DDS_ENT_AMP_LSB 14 +#define DDS_ENT_MAIN_LSB 9 +#define DDS_ENT_POST_LSB 5 +#define DDS_ENT_PRE_XTRA_LSB 3 +#define DDS_ENT_PRE_LSB 0 + +/* + * Set one entry in the TxDDS table for spec'd port + * ridx picks one of the entries, while tp points + * to the appropriate table entry. + */ +static void set_txdds(struct qib_pportdata *ppd, int ridx, + const struct txdds_ent *tp) +{ + struct qib_devdata *dd = ppd->dd; + u32 pack_ent; + int regidx; + + /* Get correct offset in chip-space, and in source table */ + regidx = KREG_IBPORT_IDX(IBSD_DDS_MAP_TABLE) + ridx; + /* + * We do not use qib_write_kreg_port() because it was intended + * only for registers in the lower "port specific" pages. + * So do index calculation by hand. + */ + if (ppd->hw_pidx) + regidx += (dd->palign / sizeof(u64)); + + pack_ent = tp->amp << DDS_ENT_AMP_LSB; + pack_ent |= tp->main << DDS_ENT_MAIN_LSB; + pack_ent |= tp->pre << DDS_ENT_PRE_LSB; + pack_ent |= tp->post << DDS_ENT_POST_LSB; + qib_write_kreg(dd, regidx, pack_ent); + /* Prevent back-to-back writes by hitting scratch */ + qib_write_kreg(ppd->dd, kr_scratch, 0); +} + +static const struct vendor_txdds_ent vendor_txdds[] = { + { /* Amphenol 1m 30awg NoEq */ + { 0x41, 0x50, 0x48 }, "584470002 ", + { 10, 0, 0, 5 }, { 10, 0, 0, 9 }, { 7, 1, 0, 13 }, + }, + { /* Amphenol 3m 28awg NoEq */ + { 0x41, 0x50, 0x48 }, "584470004 ", + { 0, 0, 0, 8 }, { 0, 0, 0, 11 }, { 0, 1, 7, 15 }, + }, + { /* Finisar 3m OM2 Optical */ + { 0x00, 0x90, 0x65 }, "FCBG410QB1C03-QL", + { 0, 0, 0, 3 }, { 0, 0, 0, 4 }, { 0, 0, 0, 13 }, + }, + { /* Finisar 30m OM2 Optical */ + { 0x00, 0x90, 0x65 }, "FCBG410QB1C30-QL", + { 0, 0, 0, 1 }, { 0, 0, 0, 5 }, { 0, 0, 0, 11 }, + }, + { /* Finisar Default OM2 Optical */ + { 0x00, 0x90, 0x65 }, NULL, + { 0, 0, 0, 2 }, { 0, 0, 0, 5 }, { 0, 0, 0, 12 }, + }, + { /* Gore 1m 30awg NoEq */ + { 0x00, 0x21, 0x77 }, "QSN3300-1 ", + { 0, 0, 0, 6 }, { 0, 0, 0, 9 }, { 0, 1, 0, 15 }, + }, + { /* Gore 2m 30awg NoEq */ + { 0x00, 0x21, 0x77 }, "QSN3300-2 ", + { 0, 0, 0, 8 }, { 0, 0, 0, 10 }, { 0, 1, 7, 15 }, + }, + { /* Gore 1m 28awg NoEq */ + { 0x00, 0x21, 0x77 }, "QSN3800-1 ", + { 0, 0, 0, 6 }, { 0, 0, 0, 8 }, { 0, 1, 0, 15 }, + }, + { /* Gore 3m 28awg NoEq */ + { 0x00, 0x21, 0x77 }, "QSN3800-3 ", + { 0, 0, 0, 9 }, { 0, 0, 0, 13 }, { 0, 1, 7, 15 }, + }, + { /* Gore 5m 24awg Eq */ + { 0x00, 0x21, 0x77 }, "QSN7000-5 ", + { 0, 0, 0, 7 }, { 0, 0, 0, 9 }, { 0, 1, 3, 15 }, + }, + { /* Gore 7m 24awg Eq */ + { 0x00, 0x21, 0x77 }, "QSN7000-7 ", + { 0, 0, 0, 9 }, { 0, 0, 0, 11 }, { 0, 2, 6, 15 }, + }, + { /* Gore 5m 26awg Eq */ + { 0x00, 0x21, 0x77 }, "QSN7600-5 ", + { 0, 0, 0, 8 }, { 0, 0, 0, 11 }, { 0, 1, 9, 13 }, + }, + { /* Gore 7m 26awg Eq */ + { 0x00, 0x21, 0x77 }, "QSN7600-7 ", + { 0, 0, 0, 8 }, { 0, 0, 0, 11 }, { 10, 1, 8, 15 }, + }, + { /* Intersil 12m 24awg Active */ + { 0x00, 0x30, 0xB4 }, "QLX4000CQSFP1224", + { 0, 0, 0, 2 }, { 0, 0, 0, 5 }, { 0, 3, 0, 9 }, + }, + { /* Intersil 10m 28awg Active */ + { 0x00, 0x30, 0xB4 }, "QLX4000CQSFP1028", + { 0, 0, 0, 6 }, { 0, 0, 0, 4 }, { 0, 2, 0, 2 }, + }, + { /* Intersil 7m 30awg Active */ + { 0x00, 0x30, 0xB4 }, "QLX4000CQSFP0730", + { 0, 0, 0, 6 }, { 0, 0, 0, 4 }, { 0, 1, 0, 3 }, + }, + { /* Intersil 5m 32awg Active */ + { 0x00, 0x30, 0xB4 }, "QLX4000CQSFP0532", + { 0, 0, 0, 6 }, { 0, 0, 0, 6 }, { 0, 2, 0, 8 }, + }, + { /* Intersil Default Active */ + { 0x00, 0x30, 0xB4 }, NULL, + { 0, 0, 0, 6 }, { 0, 0, 0, 5 }, { 0, 2, 0, 5 }, + }, + { /* Luxtera 20m Active Optical */ + { 0x00, 0x25, 0x63 }, NULL, + { 0, 0, 0, 5 }, { 0, 0, 0, 8 }, { 0, 2, 0, 12 }, + }, + { /* Molex 1M Cu loopback */ + { 0x00, 0x09, 0x3A }, "74763-0025 ", + { 2, 2, 6, 15 }, { 2, 2, 6, 15 }, { 2, 2, 6, 15 }, + }, + { /* Molex 2m 28awg NoEq */ + { 0x00, 0x09, 0x3A }, "74757-2201 ", + { 0, 0, 0, 6 }, { 0, 0, 0, 9 }, { 0, 1, 1, 15 }, + }, +}; + +static const struct txdds_ent txdds_sdr[TXDDS_TABLE_SZ] = { + /* amp, pre, main, post */ + { 2, 2, 15, 6 }, /* Loopback */ + { 0, 0, 0, 1 }, /* 2 dB */ + { 0, 0, 0, 2 }, /* 3 dB */ + { 0, 0, 0, 3 }, /* 4 dB */ + { 0, 0, 0, 4 }, /* 5 dB */ + { 0, 0, 0, 5 }, /* 6 dB */ + { 0, 0, 0, 6 }, /* 7 dB */ + { 0, 0, 0, 7 }, /* 8 dB */ + { 0, 0, 0, 8 }, /* 9 dB */ + { 0, 0, 0, 9 }, /* 10 dB */ + { 0, 0, 0, 10 }, /* 11 dB */ + { 0, 0, 0, 11 }, /* 12 dB */ + { 0, 0, 0, 12 }, /* 13 dB */ + { 0, 0, 0, 13 }, /* 14 dB */ + { 0, 0, 0, 14 }, /* 15 dB */ + { 0, 0, 0, 15 }, /* 16 dB */ +}; + +static const struct txdds_ent txdds_ddr[TXDDS_TABLE_SZ] = { + /* amp, pre, main, post */ + { 2, 2, 15, 6 }, /* Loopback */ + { 0, 0, 0, 8 }, /* 2 dB */ + { 0, 0, 0, 8 }, /* 3 dB */ + { 0, 0, 0, 9 }, /* 4 dB */ + { 0, 0, 0, 9 }, /* 5 dB */ + { 0, 0, 0, 10 }, /* 6 dB */ + { 0, 0, 0, 10 }, /* 7 dB */ + { 0, 0, 0, 11 }, /* 8 dB */ + { 0, 0, 0, 11 }, /* 9 dB */ + { 0, 0, 0, 12 }, /* 10 dB */ + { 0, 0, 0, 12 }, /* 11 dB */ + { 0, 0, 0, 13 }, /* 12 dB */ + { 0, 0, 0, 13 }, /* 13 dB */ + { 0, 0, 0, 14 }, /* 14 dB */ + { 0, 0, 0, 14 }, /* 15 dB */ + { 0, 0, 0, 15 }, /* 16 dB */ +}; + +static const struct txdds_ent txdds_qdr[TXDDS_TABLE_SZ] = { + /* amp, pre, main, post */ + { 2, 2, 15, 6 }, /* Loopback */ + { 0, 1, 0, 7 }, /* 2 dB (also QMH7342) */ + { 0, 1, 0, 9 }, /* 3 dB (also QMH7342) */ + { 0, 1, 0, 11 }, /* 4 dB */ + { 0, 1, 0, 13 }, /* 5 dB */ + { 0, 1, 0, 15 }, /* 6 dB */ + { 0, 1, 3, 15 }, /* 7 dB */ + { 0, 1, 7, 15 }, /* 8 dB */ + { 0, 1, 7, 15 }, /* 9 dB */ + { 0, 1, 8, 15 }, /* 10 dB */ + { 0, 1, 9, 15 }, /* 11 dB */ + { 0, 1, 10, 15 }, /* 12 dB */ + { 0, 2, 6, 15 }, /* 13 dB */ + { 0, 2, 7, 15 }, /* 14 dB */ + { 0, 2, 8, 15 }, /* 15 dB */ + { 0, 2, 9, 15 }, /* 16 dB */ +}; + +/* + * extra entries for use with txselect, for indices >= TXDDS_TABLE_SZ. + * These are mostly used for mez cards going through connectors + * and backplane traces, but can be used to add other "unusual" + * table values as well. + */ +static const struct txdds_ent txdds_extra_sdr[TXDDS_EXTRA_SZ] = { + /* amp, pre, main, post */ + { 0, 0, 0, 1 }, /* QMH7342 backplane settings */ + { 0, 0, 0, 1 }, /* QMH7342 backplane settings */ + { 0, 0, 0, 2 }, /* QMH7342 backplane settings */ + { 0, 0, 0, 2 }, /* QMH7342 backplane settings */ + { 0, 0, 0, 3 }, /* QMH7342 backplane settings */ + { 0, 0, 0, 4 }, /* QMH7342 backplane settings */ + { 0, 1, 4, 15 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 3, 15 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 0, 12 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 0, 11 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 0, 9 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 0, 14 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 2, 15 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 0, 11 }, /* QME7342 backplane settings 1.1 */ + { 0, 1, 0, 7 }, /* QME7342 backplane settings 1.1 */ + { 0, 1, 0, 9 }, /* QME7342 backplane settings 1.1 */ + { 0, 1, 0, 6 }, /* QME7342 backplane settings 1.1 */ + { 0, 1, 0, 8 }, /* QME7342 backplane settings 1.1 */ +}; + +static const struct txdds_ent txdds_extra_ddr[TXDDS_EXTRA_SZ] = { + /* amp, pre, main, post */ + { 0, 0, 0, 7 }, /* QMH7342 backplane settings */ + { 0, 0, 0, 7 }, /* QMH7342 backplane settings */ + { 0, 0, 0, 8 }, /* QMH7342 backplane settings */ + { 0, 0, 0, 8 }, /* QMH7342 backplane settings */ + { 0, 0, 0, 9 }, /* QMH7342 backplane settings */ + { 0, 0, 0, 10 }, /* QMH7342 backplane settings */ + { 0, 1, 4, 15 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 3, 15 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 0, 12 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 0, 11 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 0, 9 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 0, 14 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 2, 15 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 0, 11 }, /* QME7342 backplane settings 1.1 */ + { 0, 1, 0, 7 }, /* QME7342 backplane settings 1.1 */ + { 0, 1, 0, 9 }, /* QME7342 backplane settings 1.1 */ + { 0, 1, 0, 6 }, /* QME7342 backplane settings 1.1 */ + { 0, 1, 0, 8 }, /* QME7342 backplane settings 1.1 */ +}; + +static const struct txdds_ent txdds_extra_qdr[TXDDS_EXTRA_SZ] = { + /* amp, pre, main, post */ + { 0, 1, 0, 4 }, /* QMH7342 backplane settings */ + { 0, 1, 0, 5 }, /* QMH7342 backplane settings */ + { 0, 1, 0, 6 }, /* QMH7342 backplane settings */ + { 0, 1, 0, 8 }, /* QMH7342 backplane settings */ + { 0, 1, 0, 10 }, /* QMH7342 backplane settings */ + { 0, 1, 0, 12 }, /* QMH7342 backplane settings */ + { 0, 1, 4, 15 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 3, 15 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 0, 12 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 0, 11 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 0, 9 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 0, 14 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 2, 15 }, /* QME7342 backplane settings 1.0 */ + { 0, 1, 0, 11 }, /* QME7342 backplane settings 1.1 */ + { 0, 1, 0, 7 }, /* QME7342 backplane settings 1.1 */ + { 0, 1, 0, 9 }, /* QME7342 backplane settings 1.1 */ + { 0, 1, 0, 6 }, /* QME7342 backplane settings 1.1 */ + { 0, 1, 0, 8 }, /* QME7342 backplane settings 1.1 */ +}; + +static const struct txdds_ent txdds_extra_mfg[TXDDS_MFG_SZ] = { + /* amp, pre, main, post */ + { 0, 0, 0, 0 }, /* QME7342 mfg settings */ + { 0, 0, 0, 6 }, /* QME7342 P2 mfg settings */ +}; + +static const struct txdds_ent *get_atten_table(const struct txdds_ent *txdds, + unsigned atten) +{ + /* + * The attenuation table starts at 2dB for entry 1, + * with entry 0 being the loopback entry. + */ + if (atten <= 2) + atten = 1; + else if (atten > TXDDS_TABLE_SZ) + atten = TXDDS_TABLE_SZ - 1; + else + atten--; + return txdds + atten; +} + +/* + * if override is set, the module parameter txselect has a value + * for this specific port, so use it, rather than our normal mechanism. + */ +static void find_best_ent(struct qib_pportdata *ppd, + const struct txdds_ent **sdr_dds, + const struct txdds_ent **ddr_dds, + const struct txdds_ent **qdr_dds, int override) +{ + struct qib_qsfp_cache *qd = &ppd->cpspec->qsfp_data.cache; + int idx; + + /* Search table of known cables */ + for (idx = 0; !override && idx < ARRAY_SIZE(vendor_txdds); ++idx) { + const struct vendor_txdds_ent *v = vendor_txdds + idx; + + if (!memcmp(v->oui, qd->oui, QSFP_VOUI_LEN) && + (!v->partnum || + !memcmp(v->partnum, qd->partnum, QSFP_PN_LEN))) { + *sdr_dds = &v->sdr; + *ddr_dds = &v->ddr; + *qdr_dds = &v->qdr; + return; + } + } + + /* Active cables don't have attenuation so we only set SERDES + * settings to account for the attenuation of the board traces. */ + if (!override && QSFP_IS_ACTIVE(qd->tech)) { + *sdr_dds = txdds_sdr + ppd->dd->board_atten; + *ddr_dds = txdds_ddr + ppd->dd->board_atten; + *qdr_dds = txdds_qdr + ppd->dd->board_atten; + return; + } + + if (!override && QSFP_HAS_ATTEN(qd->tech) && (qd->atten[0] || + qd->atten[1])) { + *sdr_dds = get_atten_table(txdds_sdr, qd->atten[0]); + *ddr_dds = get_atten_table(txdds_ddr, qd->atten[0]); + *qdr_dds = get_atten_table(txdds_qdr, qd->atten[1]); + return; + } else if (ppd->cpspec->no_eep < TXDDS_TABLE_SZ) { + /* + * If we have no (or incomplete) data from the cable + * EEPROM, or no QSFP, or override is set, use the + * module parameter value to index into the attentuation + * table. + */ + idx = ppd->cpspec->no_eep; + *sdr_dds = &txdds_sdr[idx]; + *ddr_dds = &txdds_ddr[idx]; + *qdr_dds = &txdds_qdr[idx]; + } else if (ppd->cpspec->no_eep < (TXDDS_TABLE_SZ + TXDDS_EXTRA_SZ)) { + /* similar to above, but index into the "extra" table. */ + idx = ppd->cpspec->no_eep - TXDDS_TABLE_SZ; + *sdr_dds = &txdds_extra_sdr[idx]; + *ddr_dds = &txdds_extra_ddr[idx]; + *qdr_dds = &txdds_extra_qdr[idx]; + } else if ((IS_QME(ppd->dd) || IS_QMH(ppd->dd)) && + ppd->cpspec->no_eep < (TXDDS_TABLE_SZ + TXDDS_EXTRA_SZ + + TXDDS_MFG_SZ)) { + idx = ppd->cpspec->no_eep - (TXDDS_TABLE_SZ + TXDDS_EXTRA_SZ); + pr_info("IB%u:%u use idx %u into txdds_mfg\n", + ppd->dd->unit, ppd->port, idx); + *sdr_dds = &txdds_extra_mfg[idx]; + *ddr_dds = &txdds_extra_mfg[idx]; + *qdr_dds = &txdds_extra_mfg[idx]; + } else { + /* this shouldn't happen, it's range checked */ + *sdr_dds = txdds_sdr + qib_long_atten; + *ddr_dds = txdds_ddr + qib_long_atten; + *qdr_dds = txdds_qdr + qib_long_atten; + } +} + +static void init_txdds_table(struct qib_pportdata *ppd, int override) +{ + const struct txdds_ent *sdr_dds, *ddr_dds, *qdr_dds; + struct txdds_ent *dds; + int idx; + int single_ent = 0; + + find_best_ent(ppd, &sdr_dds, &ddr_dds, &qdr_dds, override); + + /* for mez cards or override, use the selected value for all entries */ + if (!(ppd->dd->flags & QIB_HAS_QSFP) || override) + single_ent = 1; + + /* Fill in the first entry with the best entry found. */ + set_txdds(ppd, 0, sdr_dds); + set_txdds(ppd, TXDDS_TABLE_SZ, ddr_dds); + set_txdds(ppd, 2 * TXDDS_TABLE_SZ, qdr_dds); + if (ppd->lflags & (QIBL_LINKINIT | QIBL_LINKARMED | + QIBL_LINKACTIVE)) { + dds = (struct txdds_ent *)(ppd->link_speed_active == + QIB_IB_QDR ? qdr_dds : + (ppd->link_speed_active == + QIB_IB_DDR ? ddr_dds : sdr_dds)); + write_tx_serdes_param(ppd, dds); + } + + /* Fill in the remaining entries with the default table values. */ + for (idx = 1; idx < ARRAY_SIZE(txdds_sdr); ++idx) { + set_txdds(ppd, idx, single_ent ? sdr_dds : txdds_sdr + idx); + set_txdds(ppd, idx + TXDDS_TABLE_SZ, + single_ent ? ddr_dds : txdds_ddr + idx); + set_txdds(ppd, idx + 2 * TXDDS_TABLE_SZ, + single_ent ? qdr_dds : txdds_qdr + idx); + } +} + +#define KR_AHB_ACC KREG_IDX(ahb_access_ctrl) +#define KR_AHB_TRANS KREG_IDX(ahb_transaction_reg) +#define AHB_TRANS_RDY SYM_MASK(ahb_transaction_reg, ahb_rdy) +#define AHB_ADDR_LSB SYM_LSB(ahb_transaction_reg, ahb_address) +#define AHB_DATA_LSB SYM_LSB(ahb_transaction_reg, ahb_data) +#define AHB_WR SYM_MASK(ahb_transaction_reg, write_not_read) +#define AHB_TRANS_TRIES 10 + +/* + * The chan argument is 0=chan0, 1=chan1, 2=pll, 3=chan2, 4=chan4, + * 5=subsystem which is why most calls have "chan + chan >> 1" + * for the channel argument. + */ +static u32 ahb_mod(struct qib_devdata *dd, int quad, int chan, int addr, + u32 data, u32 mask) +{ + u32 rd_data, wr_data, sz_mask; + u64 trans, acc, prev_acc; + u32 ret = 0xBAD0BAD; + int tries; + + prev_acc = qib_read_kreg64(dd, KR_AHB_ACC); + /* From this point on, make sure we return access */ + acc = (quad << 1) | 1; + qib_write_kreg(dd, KR_AHB_ACC, acc); + + for (tries = 1; tries < AHB_TRANS_TRIES; ++tries) { + trans = qib_read_kreg64(dd, KR_AHB_TRANS); + if (trans & AHB_TRANS_RDY) + break; + } + if (tries >= AHB_TRANS_TRIES) { + qib_dev_err(dd, "No ahb_rdy in %d tries\n", AHB_TRANS_TRIES); + goto bail; + } + + /* If mask is not all 1s, we need to read, but different SerDes + * entities have different sizes + */ + sz_mask = (1UL << ((quad == 1) ? 32 : 16)) - 1; + wr_data = data & mask & sz_mask; + if ((~mask & sz_mask) != 0) { + trans = ((chan << 6) | addr) << (AHB_ADDR_LSB + 1); + qib_write_kreg(dd, KR_AHB_TRANS, trans); + + for (tries = 1; tries < AHB_TRANS_TRIES; ++tries) { + trans = qib_read_kreg64(dd, KR_AHB_TRANS); + if (trans & AHB_TRANS_RDY) + break; + } + if (tries >= AHB_TRANS_TRIES) { + qib_dev_err(dd, "No Rd ahb_rdy in %d tries\n", + AHB_TRANS_TRIES); + goto bail; + } + /* Re-read in case host split reads and read data first */ + trans = qib_read_kreg64(dd, KR_AHB_TRANS); + rd_data = (uint32_t)(trans >> AHB_DATA_LSB); + wr_data |= (rd_data & ~mask & sz_mask); + } + + /* If mask is not zero, we need to write. */ + if (mask & sz_mask) { + trans = ((chan << 6) | addr) << (AHB_ADDR_LSB + 1); + trans |= ((uint64_t)wr_data << AHB_DATA_LSB); + trans |= AHB_WR; + qib_write_kreg(dd, KR_AHB_TRANS, trans); + + for (tries = 1; tries < AHB_TRANS_TRIES; ++tries) { + trans = qib_read_kreg64(dd, KR_AHB_TRANS); + if (trans & AHB_TRANS_RDY) + break; + } + if (tries >= AHB_TRANS_TRIES) { + qib_dev_err(dd, "No Wr ahb_rdy in %d tries\n", + AHB_TRANS_TRIES); + goto bail; + } + } + ret = wr_data; +bail: + qib_write_kreg(dd, KR_AHB_ACC, prev_acc); + return ret; +} + +static void ibsd_wr_allchans(struct qib_pportdata *ppd, int addr, unsigned data, + unsigned mask) +{ + struct qib_devdata *dd = ppd->dd; + int chan; + + for (chan = 0; chan < SERDES_CHANS; ++chan) { + ahb_mod(dd, IBSD(ppd->hw_pidx), (chan + (chan >> 1)), addr, + data, mask); + ahb_mod(dd, IBSD(ppd->hw_pidx), (chan + (chan >> 1)), addr, + 0, 0); + } +} + +static void serdes_7322_los_enable(struct qib_pportdata *ppd, int enable) +{ + u64 data = qib_read_kreg_port(ppd, krp_serdesctrl); + u8 state = SYM_FIELD(data, IBSerdesCtrl_0, RXLOSEN); + + if (enable && !state) { + pr_info("IB%u:%u Turning LOS on\n", + ppd->dd->unit, ppd->port); + data |= SYM_MASK(IBSerdesCtrl_0, RXLOSEN); + } else if (!enable && state) { + pr_info("IB%u:%u Turning LOS off\n", + ppd->dd->unit, ppd->port); + data &= ~SYM_MASK(IBSerdesCtrl_0, RXLOSEN); + } + qib_write_kreg_port(ppd, krp_serdesctrl, data); +} + +static int serdes_7322_init(struct qib_pportdata *ppd) +{ + int ret = 0; + + if (ppd->dd->cspec->r1) + ret = serdes_7322_init_old(ppd); + else + ret = serdes_7322_init_new(ppd); + return ret; +} + +static int serdes_7322_init_old(struct qib_pportdata *ppd) +{ + u32 le_val; + + /* + * Initialize the Tx DDS tables. Also done every QSFP event, + * for adapters with QSFP + */ + init_txdds_table(ppd, 0); + + /* ensure no tx overrides from earlier driver loads */ + qib_write_kreg_port(ppd, krp_tx_deemph_override, + SYM_MASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0, + reset_tx_deemphasis_override)); + + /* Patch some SerDes defaults to "Better for IB" */ + /* Timing Loop Bandwidth: cdr_timing[11:9] = 0 */ + ibsd_wr_allchans(ppd, 2, 0, BMASK(11, 9)); + + /* Termination: rxtermctrl_r2d addr 11 bits [12:11] = 1 */ + ibsd_wr_allchans(ppd, 11, (1 << 11), BMASK(12, 11)); + /* Enable LE2: rxle2en_r2a addr 13 bit [6] = 1 */ + ibsd_wr_allchans(ppd, 13, (1 << 6), (1 << 6)); + + /* May be overridden in qsfp_7322_event */ + le_val = IS_QME(ppd->dd) ? LE2_QME : LE2_DEFAULT; + ibsd_wr_allchans(ppd, 13, (le_val << 7), BMASK(9, 7)); + + /* enable LE1 adaptation for all but QME, which is disabled */ + le_val = IS_QME(ppd->dd) ? 0 : 1; + ibsd_wr_allchans(ppd, 13, (le_val << 5), (1 << 5)); + + /* Clear cmode-override, may be set from older driver */ + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 10, 0 << 14, 1 << 14); + + /* Timing Recovery: rxtapsel addr 5 bits [9:8] = 0 */ + ibsd_wr_allchans(ppd, 5, (0 << 8), BMASK(9, 8)); + + /* setup LoS params; these are subsystem, so chan == 5 */ + /* LoS filter threshold_count on, ch 0-3, set to 8 */ + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 5, 8 << 11, BMASK(14, 11)); + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 7, 8 << 4, BMASK(7, 4)); + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 8, 8 << 11, BMASK(14, 11)); + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 10, 8 << 4, BMASK(7, 4)); + + /* LoS filter threshold_count off, ch 0-3, set to 4 */ + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 6, 4 << 0, BMASK(3, 0)); + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 7, 4 << 8, BMASK(11, 8)); + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 9, 4 << 0, BMASK(3, 0)); + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 10, 4 << 8, BMASK(11, 8)); + + /* LoS filter select enabled */ + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 9, 1 << 15, 1 << 15); + + /* LoS target data: SDR=4, DDR=2, QDR=1 */ + ibsd_wr_allchans(ppd, 14, (1 << 3), BMASK(5, 3)); /* QDR */ + ibsd_wr_allchans(ppd, 20, (2 << 10), BMASK(12, 10)); /* DDR */ + ibsd_wr_allchans(ppd, 20, (4 << 13), BMASK(15, 13)); /* SDR */ + + serdes_7322_los_enable(ppd, 1); + + /* rxbistena; set 0 to avoid effects of it switch later */ + ibsd_wr_allchans(ppd, 9, 0 << 15, 1 << 15); + + /* Configure 4 DFE taps, and only they adapt */ + ibsd_wr_allchans(ppd, 16, 0 << 0, BMASK(1, 0)); + + /* gain hi stop 32 (22) (6:1) lo stop 7 (10:7) target 22 (13) (15:11) */ + le_val = (ppd->dd->cspec->r1 || IS_QME(ppd->dd)) ? 0xb6c0 : 0x6bac; + ibsd_wr_allchans(ppd, 21, le_val, 0xfffe); + + /* + * Set receive adaptation mode. SDR and DDR adaptation are + * always on, and QDR is initially enabled; later disabled. + */ + qib_write_kreg_port(ppd, krp_static_adapt_dis(0), 0ULL); + qib_write_kreg_port(ppd, krp_static_adapt_dis(1), 0ULL); + qib_write_kreg_port(ppd, krp_static_adapt_dis(2), + ppd->dd->cspec->r1 ? + QDR_STATIC_ADAPT_DOWN_R1 : QDR_STATIC_ADAPT_DOWN); + ppd->cpspec->qdr_dfe_on = 1; + + /* FLoop LOS gate: PPM filter enabled */ + ibsd_wr_allchans(ppd, 38, 0 << 10, 1 << 10); + + /* rx offset center enabled */ + ibsd_wr_allchans(ppd, 12, 1 << 4, 1 << 4); + + if (!ppd->dd->cspec->r1) { + ibsd_wr_allchans(ppd, 12, 1 << 12, 1 << 12); + ibsd_wr_allchans(ppd, 12, 2 << 8, 0x0f << 8); + } + + /* Set the frequency loop bandwidth to 15 */ + ibsd_wr_allchans(ppd, 2, 15 << 5, BMASK(8, 5)); + + return 0; +} + +static int serdes_7322_init_new(struct qib_pportdata *ppd) +{ + unsigned long tend; + u32 le_val, rxcaldone; + int chan, chan_done = (1 << SERDES_CHANS) - 1; + + /* Clear cmode-override, may be set from older driver */ + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 10, 0 << 14, 1 << 14); + + /* ensure no tx overrides from earlier driver loads */ + qib_write_kreg_port(ppd, krp_tx_deemph_override, + SYM_MASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0, + reset_tx_deemphasis_override)); + + /* START OF LSI SUGGESTED SERDES BRINGUP */ + /* Reset - Calibration Setup */ + /* Stop DFE adaptaion */ + ibsd_wr_allchans(ppd, 1, 0, BMASK(9, 1)); + /* Disable LE1 */ + ibsd_wr_allchans(ppd, 13, 0, BMASK(5, 5)); + /* Disable autoadapt for LE1 */ + ibsd_wr_allchans(ppd, 1, 0, BMASK(15, 15)); + /* Disable LE2 */ + ibsd_wr_allchans(ppd, 13, 0, BMASK(6, 6)); + /* Disable VGA */ + ibsd_wr_allchans(ppd, 5, 0, BMASK(0, 0)); + /* Disable AFE Offset Cancel */ + ibsd_wr_allchans(ppd, 12, 0, BMASK(12, 12)); + /* Disable Timing Loop */ + ibsd_wr_allchans(ppd, 2, 0, BMASK(3, 3)); + /* Disable Frequency Loop */ + ibsd_wr_allchans(ppd, 2, 0, BMASK(4, 4)); + /* Disable Baseline Wander Correction */ + ibsd_wr_allchans(ppd, 13, 0, BMASK(13, 13)); + /* Disable RX Calibration */ + ibsd_wr_allchans(ppd, 4, 0, BMASK(10, 10)); + /* Disable RX Offset Calibration */ + ibsd_wr_allchans(ppd, 12, 0, BMASK(4, 4)); + /* Select BB CDR */ + ibsd_wr_allchans(ppd, 2, (1 << 15), BMASK(15, 15)); + /* CDR Step Size */ + ibsd_wr_allchans(ppd, 5, 0, BMASK(9, 8)); + /* Enable phase Calibration */ + ibsd_wr_allchans(ppd, 12, (1 << 5), BMASK(5, 5)); + /* DFE Bandwidth [2:14-12] */ + ibsd_wr_allchans(ppd, 2, (4 << 12), BMASK(14, 12)); + /* DFE Config (4 taps only) */ + ibsd_wr_allchans(ppd, 16, 0, BMASK(1, 0)); + /* Gain Loop Bandwidth */ + if (!ppd->dd->cspec->r1) { + ibsd_wr_allchans(ppd, 12, 1 << 12, BMASK(12, 12)); + ibsd_wr_allchans(ppd, 12, 2 << 8, BMASK(11, 8)); + } else { + ibsd_wr_allchans(ppd, 19, (3 << 11), BMASK(13, 11)); + } + /* Baseline Wander Correction Gain [13:4-0] (leave as default) */ + /* Baseline Wander Correction Gain [3:7-5] (leave as default) */ + /* Data Rate Select [5:7-6] (leave as default) */ + /* RX Parallel Word Width [3:10-8] (leave as default) */ + + /* RX REST */ + /* Single- or Multi-channel reset */ + /* RX Analog reset */ + /* RX Digital reset */ + ibsd_wr_allchans(ppd, 0, 0, BMASK(15, 13)); + msleep(20); + /* RX Analog reset */ + ibsd_wr_allchans(ppd, 0, (1 << 14), BMASK(14, 14)); + msleep(20); + /* RX Digital reset */ + ibsd_wr_allchans(ppd, 0, (1 << 13), BMASK(13, 13)); + msleep(20); + + /* setup LoS params; these are subsystem, so chan == 5 */ + /* LoS filter threshold_count on, ch 0-3, set to 8 */ + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 5, 8 << 11, BMASK(14, 11)); + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 7, 8 << 4, BMASK(7, 4)); + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 8, 8 << 11, BMASK(14, 11)); + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 10, 8 << 4, BMASK(7, 4)); + + /* LoS filter threshold_count off, ch 0-3, set to 4 */ + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 6, 4 << 0, BMASK(3, 0)); + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 7, 4 << 8, BMASK(11, 8)); + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 9, 4 << 0, BMASK(3, 0)); + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 10, 4 << 8, BMASK(11, 8)); + + /* LoS filter select enabled */ + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), 5, 9, 1 << 15, 1 << 15); + + /* LoS target data: SDR=4, DDR=2, QDR=1 */ + ibsd_wr_allchans(ppd, 14, (1 << 3), BMASK(5, 3)); /* QDR */ + ibsd_wr_allchans(ppd, 20, (2 << 10), BMASK(12, 10)); /* DDR */ + ibsd_wr_allchans(ppd, 20, (4 << 13), BMASK(15, 13)); /* SDR */ + + /* Turn on LOS on initial SERDES init */ + serdes_7322_los_enable(ppd, 1); + /* FLoop LOS gate: PPM filter enabled */ + ibsd_wr_allchans(ppd, 38, 0 << 10, 1 << 10); + + /* RX LATCH CALIBRATION */ + /* Enable Eyefinder Phase Calibration latch */ + ibsd_wr_allchans(ppd, 15, 1, BMASK(0, 0)); + /* Enable RX Offset Calibration latch */ + ibsd_wr_allchans(ppd, 12, (1 << 4), BMASK(4, 4)); + msleep(20); + /* Start Calibration */ + ibsd_wr_allchans(ppd, 4, (1 << 10), BMASK(10, 10)); + tend = jiffies + msecs_to_jiffies(500); + while (chan_done && !time_is_before_jiffies(tend)) { + msleep(20); + for (chan = 0; chan < SERDES_CHANS; ++chan) { + rxcaldone = ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), + (chan + (chan >> 1)), + 25, 0, 0); + if ((~rxcaldone & (u32)BMASK(9, 9)) == 0 && + (~chan_done & (1 << chan)) == 0) + chan_done &= ~(1 << chan); + } + } + if (chan_done) { + pr_info("Serdes %d calibration not done after .5 sec: 0x%x\n", + IBSD(ppd->hw_pidx), chan_done); + } else { + for (chan = 0; chan < SERDES_CHANS; ++chan) { + rxcaldone = ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), + (chan + (chan >> 1)), + 25, 0, 0); + if ((~rxcaldone & (u32)BMASK(10, 10)) == 0) + pr_info("Serdes %d chan %d calibration failed\n", + IBSD(ppd->hw_pidx), chan); + } + } + + /* Turn off Calibration */ + ibsd_wr_allchans(ppd, 4, 0, BMASK(10, 10)); + msleep(20); + + /* BRING RX UP */ + /* Set LE2 value (May be overridden in qsfp_7322_event) */ + le_val = IS_QME(ppd->dd) ? LE2_QME : LE2_DEFAULT; + ibsd_wr_allchans(ppd, 13, (le_val << 7), BMASK(9, 7)); + /* Set LE2 Loop bandwidth */ + ibsd_wr_allchans(ppd, 3, (7 << 5), BMASK(7, 5)); + /* Enable LE2 */ + ibsd_wr_allchans(ppd, 13, (1 << 6), BMASK(6, 6)); + msleep(20); + /* Enable H0 only */ + ibsd_wr_allchans(ppd, 1, 1, BMASK(9, 1)); + /* gain hi stop 32 (22) (6:1) lo stop 7 (10:7) target 22 (13) (15:11) */ + le_val = (ppd->dd->cspec->r1 || IS_QME(ppd->dd)) ? 0xb6c0 : 0x6bac; + ibsd_wr_allchans(ppd, 21, le_val, 0xfffe); + /* Enable VGA */ + ibsd_wr_allchans(ppd, 5, 0, BMASK(0, 0)); + msleep(20); + /* Set Frequency Loop Bandwidth */ + ibsd_wr_allchans(ppd, 2, (15 << 5), BMASK(8, 5)); + /* Enable Frequency Loop */ + ibsd_wr_allchans(ppd, 2, (1 << 4), BMASK(4, 4)); + /* Set Timing Loop Bandwidth */ + ibsd_wr_allchans(ppd, 2, 0, BMASK(11, 9)); + /* Enable Timing Loop */ + ibsd_wr_allchans(ppd, 2, (1 << 3), BMASK(3, 3)); + msleep(50); + /* Enable DFE + * Set receive adaptation mode. SDR and DDR adaptation are + * always on, and QDR is initially enabled; later disabled. + */ + qib_write_kreg_port(ppd, krp_static_adapt_dis(0), 0ULL); + qib_write_kreg_port(ppd, krp_static_adapt_dis(1), 0ULL); + qib_write_kreg_port(ppd, krp_static_adapt_dis(2), + ppd->dd->cspec->r1 ? + QDR_STATIC_ADAPT_DOWN_R1 : QDR_STATIC_ADAPT_DOWN); + ppd->cpspec->qdr_dfe_on = 1; + /* Disable LE1 */ + ibsd_wr_allchans(ppd, 13, (0 << 5), (1 << 5)); + /* Disable auto adapt for LE1 */ + ibsd_wr_allchans(ppd, 1, (0 << 15), BMASK(15, 15)); + msleep(20); + /* Enable AFE Offset Cancel */ + ibsd_wr_allchans(ppd, 12, (1 << 12), BMASK(12, 12)); + /* Enable Baseline Wander Correction */ + ibsd_wr_allchans(ppd, 12, (1 << 13), BMASK(13, 13)); + /* Termination: rxtermctrl_r2d addr 11 bits [12:11] = 1 */ + ibsd_wr_allchans(ppd, 11, (1 << 11), BMASK(12, 11)); + /* VGA output common mode */ + ibsd_wr_allchans(ppd, 12, (3 << 2), BMASK(3, 2)); + + /* + * Initialize the Tx DDS tables. Also done every QSFP event, + * for adapters with QSFP + */ + init_txdds_table(ppd, 0); + + return 0; +} + +/* start adjust QMH serdes parameters */ + +static void set_man_code(struct qib_pportdata *ppd, int chan, int code) +{ + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), (chan + (chan >> 1)), + 9, code << 9, 0x3f << 9); +} + +static void set_man_mode_h1(struct qib_pportdata *ppd, int chan, + int enable, u32 tapenable) +{ + if (enable) + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), (chan + (chan >> 1)), + 1, 3 << 10, 0x1f << 10); + else + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), (chan + (chan >> 1)), + 1, 0, 0x1f << 10); +} + +/* Set clock to 1, 0, 1, 0 */ +static void clock_man(struct qib_pportdata *ppd, int chan) +{ + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), (chan + (chan >> 1)), + 4, 0x4000, 0x4000); + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), (chan + (chan >> 1)), + 4, 0, 0x4000); + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), (chan + (chan >> 1)), + 4, 0x4000, 0x4000); + ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), (chan + (chan >> 1)), + 4, 0, 0x4000); +} + +/* + * write the current Tx serdes pre,post,main,amp settings into the serdes. + * The caller must pass the settings appropriate for the current speed, + * or not care if they are correct for the current speed. + */ +static void write_tx_serdes_param(struct qib_pportdata *ppd, + struct txdds_ent *txdds) +{ + u64 deemph; + + deemph = qib_read_kreg_port(ppd, krp_tx_deemph_override); + /* field names for amp, main, post, pre, respectively */ + deemph &= ~(SYM_MASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0, txampcntl_d2a) | + SYM_MASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0, txc0_ena) | + SYM_MASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0, txcp1_ena) | + SYM_MASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0, txcn1_ena)); + + deemph |= SYM_MASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0, + tx_override_deemphasis_select); + deemph |= (txdds->amp & SYM_RMASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0, + txampcntl_d2a)) << SYM_LSB(IBSD_TX_DEEMPHASIS_OVERRIDE_0, + txampcntl_d2a); + deemph |= (txdds->main & SYM_RMASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0, + txc0_ena)) << SYM_LSB(IBSD_TX_DEEMPHASIS_OVERRIDE_0, + txc0_ena); + deemph |= (txdds->post & SYM_RMASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0, + txcp1_ena)) << SYM_LSB(IBSD_TX_DEEMPHASIS_OVERRIDE_0, + txcp1_ena); + deemph |= (txdds->pre & SYM_RMASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0, + txcn1_ena)) << SYM_LSB(IBSD_TX_DEEMPHASIS_OVERRIDE_0, + txcn1_ena); + qib_write_kreg_port(ppd, krp_tx_deemph_override, deemph); +} + +/* + * Set the parameters for mez cards on link bounce, so they are + * always exactly what was requested. Similar logic to init_txdds + * but does just the serdes. + */ +static void adj_tx_serdes(struct qib_pportdata *ppd) +{ + const struct txdds_ent *sdr_dds, *ddr_dds, *qdr_dds; + struct txdds_ent *dds; + + find_best_ent(ppd, &sdr_dds, &ddr_dds, &qdr_dds, 1); + dds = (struct txdds_ent *)(ppd->link_speed_active == QIB_IB_QDR ? + qdr_dds : (ppd->link_speed_active == QIB_IB_DDR ? + ddr_dds : sdr_dds)); + write_tx_serdes_param(ppd, dds); +} + +/* set QDR forced value for H1, if needed */ +static void force_h1(struct qib_pportdata *ppd) +{ + int chan; + + ppd->cpspec->qdr_reforce = 0; + if (!ppd->dd->cspec->r1) + return; + + for (chan = 0; chan < SERDES_CHANS; chan++) { + set_man_mode_h1(ppd, chan, 1, 0); + set_man_code(ppd, chan, ppd->cpspec->h1_val); + clock_man(ppd, chan); + set_man_mode_h1(ppd, chan, 0, 0); + } +} + +#define SJA_EN SYM_MASK(SPC_JTAG_ACCESS_REG, SPC_JTAG_ACCESS_EN) +#define BISTEN_LSB SYM_LSB(SPC_JTAG_ACCESS_REG, bist_en) + +#define R_OPCODE_LSB 3 +#define R_OP_NOP 0 +#define R_OP_SHIFT 2 +#define R_OP_UPDATE 3 +#define R_TDI_LSB 2 +#define R_TDO_LSB 1 +#define R_RDY 1 + +static int qib_r_grab(struct qib_devdata *dd) +{ + u64 val = SJA_EN; + + qib_write_kreg(dd, kr_r_access, val); + qib_read_kreg32(dd, kr_scratch); + return 0; +} + +/* qib_r_wait_for_rdy() not only waits for the ready bit, it + * returns the current state of R_TDO + */ +static int qib_r_wait_for_rdy(struct qib_devdata *dd) +{ + u64 val; + int timeout; + + for (timeout = 0; timeout < 100 ; ++timeout) { + val = qib_read_kreg32(dd, kr_r_access); + if (val & R_RDY) + return (val >> R_TDO_LSB) & 1; + } + return -1; +} + +static int qib_r_shift(struct qib_devdata *dd, int bisten, + int len, u8 *inp, u8 *outp) +{ + u64 valbase, val; + int ret, pos; + + valbase = SJA_EN | (bisten << BISTEN_LSB) | + (R_OP_SHIFT << R_OPCODE_LSB); + ret = qib_r_wait_for_rdy(dd); + if (ret < 0) + goto bail; + for (pos = 0; pos < len; ++pos) { + val = valbase; + if (outp) { + outp[pos >> 3] &= ~(1 << (pos & 7)); + outp[pos >> 3] |= (ret << (pos & 7)); + } + if (inp) { + int tdi = inp[pos >> 3] >> (pos & 7); + + val |= ((tdi & 1) << R_TDI_LSB); + } + qib_write_kreg(dd, kr_r_access, val); + qib_read_kreg32(dd, kr_scratch); + ret = qib_r_wait_for_rdy(dd); + if (ret < 0) + break; + } + /* Restore to NOP between operations. */ + val = SJA_EN | (bisten << BISTEN_LSB); + qib_write_kreg(dd, kr_r_access, val); + qib_read_kreg32(dd, kr_scratch); + ret = qib_r_wait_for_rdy(dd); + + if (ret >= 0) + ret = pos; +bail: + return ret; +} + +static int qib_r_update(struct qib_devdata *dd, int bisten) +{ + u64 val; + int ret; + + val = SJA_EN | (bisten << BISTEN_LSB) | (R_OP_UPDATE << R_OPCODE_LSB); + ret = qib_r_wait_for_rdy(dd); + if (ret >= 0) { + qib_write_kreg(dd, kr_r_access, val); + qib_read_kreg32(dd, kr_scratch); + } + return ret; +} + +#define BISTEN_PORT_SEL 15 +#define LEN_PORT_SEL 625 +#define BISTEN_AT 17 +#define LEN_AT 156 +#define BISTEN_ETM 16 +#define LEN_ETM 632 + +#define BIT2BYTE(x) (((x) + BITS_PER_BYTE - 1) / BITS_PER_BYTE) + +/* these are common for all IB port use cases. */ +static u8 reset_at[BIT2BYTE(LEN_AT)] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, +}; +static u8 reset_atetm[BIT2BYTE(LEN_ETM)] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x80, 0xe3, 0x81, 0x73, 0x3c, 0x70, 0x8e, + 0x07, 0xce, 0xf1, 0xc0, 0x39, 0x1e, 0x38, 0xc7, 0x03, 0xe7, + 0x78, 0xe0, 0x1c, 0x0f, 0x9c, 0x7f, 0x80, 0x73, 0x0f, 0x70, + 0xde, 0x01, 0xce, 0x39, 0xc0, 0xf9, 0x06, 0x38, 0xd7, 0x00, + 0xe7, 0x19, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, +}; +static u8 at[BIT2BYTE(LEN_AT)] = { + 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, +}; + +/* used for IB1 or IB2, only one in use */ +static u8 atetm_1port[BIT2BYTE(LEN_ETM)] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x10, 0xf2, 0x80, 0x83, 0x1e, 0x38, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x50, 0xf4, 0x41, 0x00, 0x18, 0x78, 0xc8, 0x03, + 0x07, 0x7b, 0xa0, 0x3e, 0x00, 0x02, 0x00, 0x00, 0x18, 0x00, + 0x18, 0x00, 0x00, 0x00, 0x00, 0x4b, 0x00, 0x00, 0x00, +}; + +/* used when both IB1 and IB2 are in use */ +static u8 atetm_2port[BIT2BYTE(LEN_ETM)] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x79, + 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0xf8, 0x80, 0x83, 0x1e, 0x38, 0xe0, 0x03, 0x05, + 0x7b, 0xa0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, + 0xa2, 0x0f, 0x50, 0xf4, 0x41, 0x00, 0x18, 0x78, 0xd1, 0x07, + 0x02, 0x7c, 0x80, 0x3e, 0x00, 0x02, 0x00, 0x00, 0x3e, 0x00, + 0x02, 0x00, 0x00, 0x00, 0x00, 0x64, 0x00, 0x00, 0x00, +}; + +/* used when only IB1 is in use */ +static u8 portsel_port1[BIT2BYTE(LEN_PORT_SEL)] = { + 0x32, 0x65, 0xa4, 0x7b, 0x10, 0x98, 0xdc, 0xfe, 0x13, 0x13, + 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x73, 0x0c, 0x0c, 0x0c, + 0x0c, 0x0c, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, + 0x13, 0x78, 0x78, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, + 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x74, 0x32, + 0x32, 0x32, 0x32, 0x32, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, + 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, + 0x14, 0x14, 0x9f, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, +}; + +/* used when only IB2 is in use */ +static u8 portsel_port2[BIT2BYTE(LEN_PORT_SEL)] = { + 0x32, 0x65, 0xa4, 0x7b, 0x10, 0x98, 0xdc, 0xfe, 0x39, 0x39, + 0x39, 0x39, 0x39, 0x39, 0x39, 0x39, 0x73, 0x32, 0x32, 0x32, + 0x32, 0x32, 0x39, 0x39, 0x39, 0x39, 0x39, 0x39, 0x39, 0x39, + 0x39, 0x78, 0x78, 0x39, 0x39, 0x39, 0x39, 0x39, 0x39, 0x39, + 0x3a, 0x3a, 0x3a, 0x3a, 0x3a, 0x3a, 0x3a, 0x3a, 0x74, 0x32, + 0x32, 0x32, 0x32, 0x32, 0x3a, 0x3a, 0x3a, 0x3a, 0x3a, 0x3a, + 0x3a, 0x3a, 0x3a, 0x3a, 0x3a, 0x3a, 0x3a, 0x3a, 0x3a, 0x3a, + 0x3a, 0x3a, 0x9f, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, +}; + +/* used when both IB1 and IB2 are in use */ +static u8 portsel_2port[BIT2BYTE(LEN_PORT_SEL)] = { + 0x32, 0xba, 0x54, 0x76, 0x10, 0x98, 0xdc, 0xfe, 0x13, 0x13, + 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x73, 0x0c, 0x0c, 0x0c, + 0x0c, 0x0c, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, + 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, + 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x74, 0x32, + 0x32, 0x32, 0x32, 0x32, 0x14, 0x14, 0x14, 0x14, 0x14, 0x3a, + 0x3a, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, + 0x14, 0x14, 0x9f, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, +}; + +/* + * Do setup to properly handle IB link recovery; if port is zero, we + * are initializing to cover both ports; otherwise we are initializing + * to cover a single port card, or the port has reached INIT and we may + * need to switch coverage types. + */ +static void setup_7322_link_recovery(struct qib_pportdata *ppd, u32 both) +{ + u8 *portsel, *etm; + struct qib_devdata *dd = ppd->dd; + + if (!ppd->dd->cspec->r1) + return; + if (!both) { + dd->cspec->recovery_ports_initted++; + ppd->cpspec->recovery_init = 1; + } + if (!both && dd->cspec->recovery_ports_initted == 1) { + portsel = ppd->port == 1 ? portsel_port1 : portsel_port2; + etm = atetm_1port; + } else { + portsel = portsel_2port; + etm = atetm_2port; + } + + if (qib_r_grab(dd) < 0 || + qib_r_shift(dd, BISTEN_ETM, LEN_ETM, reset_atetm, NULL) < 0 || + qib_r_update(dd, BISTEN_ETM) < 0 || + qib_r_shift(dd, BISTEN_AT, LEN_AT, reset_at, NULL) < 0 || + qib_r_update(dd, BISTEN_AT) < 0 || + qib_r_shift(dd, BISTEN_PORT_SEL, LEN_PORT_SEL, + portsel, NULL) < 0 || + qib_r_update(dd, BISTEN_PORT_SEL) < 0 || + qib_r_shift(dd, BISTEN_AT, LEN_AT, at, NULL) < 0 || + qib_r_update(dd, BISTEN_AT) < 0 || + qib_r_shift(dd, BISTEN_ETM, LEN_ETM, etm, NULL) < 0 || + qib_r_update(dd, BISTEN_ETM) < 0) + qib_dev_err(dd, "Failed IB link recovery setup\n"); +} + +static void check_7322_rxe_status(struct qib_pportdata *ppd) +{ + struct qib_devdata *dd = ppd->dd; + u64 fmask; + + if (dd->cspec->recovery_ports_initted != 1) + return; /* rest doesn't apply to dualport */ + qib_write_kreg(dd, kr_control, dd->control | + SYM_MASK(Control, FreezeMode)); + (void)qib_read_kreg64(dd, kr_scratch); + udelay(3); /* ibcreset asserted 400ns, be sure that's over */ + fmask = qib_read_kreg64(dd, kr_act_fmask); + if (!fmask) { + /* + * require a powercycle before we'll work again, and make + * sure we get no more interrupts, and don't turn off + * freeze. + */ + ppd->dd->cspec->stay_in_freeze = 1; + qib_7322_set_intr_state(ppd->dd, 0); + qib_write_kreg(dd, kr_fmask, 0ULL); + qib_dev_err(dd, "HCA unusable until powercycled\n"); + return; /* eventually reset */ + } + + qib_write_kreg(ppd->dd, kr_hwerrclear, + SYM_MASK(HwErrClear, IBSerdesPClkNotDetectClear_1)); + + /* don't do the full clear_freeze(), not needed for this */ + qib_write_kreg(dd, kr_control, dd->control); + qib_read_kreg32(dd, kr_scratch); + /* take IBC out of reset */ + if (ppd->link_speed_supported) { + ppd->cpspec->ibcctrl_a &= + ~SYM_MASK(IBCCtrlA_0, IBStatIntReductionEn); + qib_write_kreg_port(ppd, krp_ibcctrl_a, + ppd->cpspec->ibcctrl_a); + qib_read_kreg32(dd, kr_scratch); + if (ppd->lflags & QIBL_IB_LINK_DISABLED) + qib_set_ib_7322_lstate(ppd, 0, + QLOGIC_IB_IBCC_LINKINITCMD_DISABLE); + } +} diff --git a/drivers/infiniband/hw/qib/qib_init.c b/drivers/infiniband/hw/qib/qib_init.c new file mode 100644 index 000000000..452110084 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_init.c @@ -0,0 +1,1798 @@ +/* + * Copyright (c) 2012, 2013 Intel Corporation. All rights reserved. + * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/pci.h> +#include <linux/netdevice.h> +#include <linux/vmalloc.h> +#include <linux/delay.h> +#include <linux/module.h> +#include <linux/printk.h> +#ifdef CONFIG_INFINIBAND_QIB_DCA +#include <linux/dca.h> +#endif +#include <rdma/rdma_vt.h> + +#include "qib.h" +#include "qib_common.h" +#include "qib_mad.h" +#ifdef CONFIG_DEBUG_FS +#include "qib_debugfs.h" +#include "qib_verbs.h" +#endif + +#undef pr_fmt +#define pr_fmt(fmt) QIB_DRV_NAME ": " fmt + +/* + * min buffers we want to have per context, after driver + */ +#define QIB_MIN_USER_CTXT_BUFCNT 7 + +#define QLOGIC_IB_R_SOFTWARE_MASK 0xFF +#define QLOGIC_IB_R_SOFTWARE_SHIFT 24 +#define QLOGIC_IB_R_EMULATOR_MASK (1ULL<<62) + +/* + * Number of ctxts we are configured to use (to allow for more pio + * buffers per ctxt, etc.) Zero means use chip value. + */ +ushort qib_cfgctxts; +module_param_named(cfgctxts, qib_cfgctxts, ushort, S_IRUGO); +MODULE_PARM_DESC(cfgctxts, "Set max number of contexts to use"); + +unsigned qib_numa_aware; +module_param_named(numa_aware, qib_numa_aware, uint, S_IRUGO); +MODULE_PARM_DESC(numa_aware, + "0 -> PSM allocation close to HCA, 1 -> PSM allocation local to process"); + +/* + * If set, do not write to any regs if avoidable, hack to allow + * check for deranged default register values. + */ +ushort qib_mini_init; +module_param_named(mini_init, qib_mini_init, ushort, S_IRUGO); +MODULE_PARM_DESC(mini_init, "If set, do minimal diag init"); + +unsigned qib_n_krcv_queues; +module_param_named(krcvqs, qib_n_krcv_queues, uint, S_IRUGO); +MODULE_PARM_DESC(krcvqs, "number of kernel receive queues per IB port"); + +unsigned qib_cc_table_size; +module_param_named(cc_table_size, qib_cc_table_size, uint, S_IRUGO); +MODULE_PARM_DESC(cc_table_size, "Congestion control table entries 0 (CCA disabled - default), min = 128, max = 1984"); + +static void verify_interrupt(struct timer_list *); + +DEFINE_XARRAY_FLAGS(qib_dev_table, XA_FLAGS_ALLOC | XA_FLAGS_LOCK_IRQ); +u32 qib_cpulist_count; +unsigned long *qib_cpulist; + +/* set number of contexts we'll actually use */ +void qib_set_ctxtcnt(struct qib_devdata *dd) +{ + if (!qib_cfgctxts) { + dd->cfgctxts = dd->first_user_ctxt + num_online_cpus(); + if (dd->cfgctxts > dd->ctxtcnt) + dd->cfgctxts = dd->ctxtcnt; + } else if (qib_cfgctxts < dd->num_pports) + dd->cfgctxts = dd->ctxtcnt; + else if (qib_cfgctxts <= dd->ctxtcnt) + dd->cfgctxts = qib_cfgctxts; + else + dd->cfgctxts = dd->ctxtcnt; + dd->freectxts = (dd->first_user_ctxt > dd->cfgctxts) ? 0 : + dd->cfgctxts - dd->first_user_ctxt; +} + +/* + * Common code for creating the receive context array. + */ +int qib_create_ctxts(struct qib_devdata *dd) +{ + unsigned i; + int local_node_id = pcibus_to_node(dd->pcidev->bus); + + if (local_node_id < 0) + local_node_id = numa_node_id(); + dd->assigned_node_id = local_node_id; + + /* + * Allocate full ctxtcnt array, rather than just cfgctxts, because + * cleanup iterates across all possible ctxts. + */ + dd->rcd = kcalloc(dd->ctxtcnt, sizeof(*dd->rcd), GFP_KERNEL); + if (!dd->rcd) + return -ENOMEM; + + /* create (one or more) kctxt */ + for (i = 0; i < dd->first_user_ctxt; ++i) { + struct qib_pportdata *ppd; + struct qib_ctxtdata *rcd; + + if (dd->skip_kctxt_mask & (1 << i)) + continue; + + ppd = dd->pport + (i % dd->num_pports); + + rcd = qib_create_ctxtdata(ppd, i, dd->assigned_node_id); + if (!rcd) { + qib_dev_err(dd, + "Unable to allocate ctxtdata for Kernel ctxt, failing\n"); + kfree(dd->rcd); + dd->rcd = NULL; + return -ENOMEM; + } + rcd->pkeys[0] = QIB_DEFAULT_P_KEY; + rcd->seq_cnt = 1; + } + return 0; +} + +/* + * Common code for user and kernel context setup. + */ +struct qib_ctxtdata *qib_create_ctxtdata(struct qib_pportdata *ppd, u32 ctxt, + int node_id) +{ + struct qib_devdata *dd = ppd->dd; + struct qib_ctxtdata *rcd; + + rcd = kzalloc_node(sizeof(*rcd), GFP_KERNEL, node_id); + if (rcd) { + INIT_LIST_HEAD(&rcd->qp_wait_list); + rcd->node_id = node_id; + rcd->ppd = ppd; + rcd->dd = dd; + rcd->cnt = 1; + rcd->ctxt = ctxt; + dd->rcd[ctxt] = rcd; +#ifdef CONFIG_DEBUG_FS + if (ctxt < dd->first_user_ctxt) { /* N/A for PSM contexts */ + rcd->opstats = kzalloc_node(sizeof(*rcd->opstats), + GFP_KERNEL, node_id); + if (!rcd->opstats) { + kfree(rcd); + qib_dev_err(dd, + "Unable to allocate per ctxt stats buffer\n"); + return NULL; + } + } +#endif + dd->f_init_ctxt(rcd); + + /* + * To avoid wasting a lot of memory, we allocate 32KB chunks + * of physically contiguous memory, advance through it until + * used up and then allocate more. Of course, we need + * memory to store those extra pointers, now. 32KB seems to + * be the most that is "safe" under memory pressure + * (creating large files and then copying them over + * NFS while doing lots of MPI jobs). The OOM killer can + * get invoked, even though we say we can sleep and this can + * cause significant system problems.... + */ + rcd->rcvegrbuf_size = 0x8000; + rcd->rcvegrbufs_perchunk = + rcd->rcvegrbuf_size / dd->rcvegrbufsize; + rcd->rcvegrbuf_chunks = (rcd->rcvegrcnt + + rcd->rcvegrbufs_perchunk - 1) / + rcd->rcvegrbufs_perchunk; + rcd->rcvegrbufs_perchunk_shift = + ilog2(rcd->rcvegrbufs_perchunk); + } + return rcd; +} + +/* + * Common code for initializing the physical port structure. + */ +int qib_init_pportdata(struct qib_pportdata *ppd, struct qib_devdata *dd, + u8 hw_pidx, u8 port) +{ + int size; + + ppd->dd = dd; + ppd->hw_pidx = hw_pidx; + ppd->port = port; /* IB port number, not index */ + + spin_lock_init(&ppd->sdma_lock); + spin_lock_init(&ppd->lflags_lock); + spin_lock_init(&ppd->cc_shadow_lock); + init_waitqueue_head(&ppd->state_wait); + + timer_setup(&ppd->symerr_clear_timer, qib_clear_symerror_on_linkup, 0); + + ppd->qib_wq = NULL; + ppd->ibport_data.pmastats = + alloc_percpu(struct qib_pma_counters); + if (!ppd->ibport_data.pmastats) + return -ENOMEM; + ppd->ibport_data.rvp.rc_acks = alloc_percpu(u64); + ppd->ibport_data.rvp.rc_qacks = alloc_percpu(u64); + ppd->ibport_data.rvp.rc_delayed_comp = alloc_percpu(u64); + if (!(ppd->ibport_data.rvp.rc_acks) || + !(ppd->ibport_data.rvp.rc_qacks) || + !(ppd->ibport_data.rvp.rc_delayed_comp)) + return -ENOMEM; + + if (qib_cc_table_size < IB_CCT_MIN_ENTRIES) + goto bail; + + ppd->cc_supported_table_entries = min(max_t(int, qib_cc_table_size, + IB_CCT_MIN_ENTRIES), IB_CCT_ENTRIES*IB_CC_TABLE_CAP_DEFAULT); + + ppd->cc_max_table_entries = + ppd->cc_supported_table_entries/IB_CCT_ENTRIES; + + size = IB_CC_TABLE_CAP_DEFAULT * sizeof(struct ib_cc_table_entry) + * IB_CCT_ENTRIES; + ppd->ccti_entries = kzalloc(size, GFP_KERNEL); + if (!ppd->ccti_entries) + goto bail; + + size = IB_CC_CCS_ENTRIES * sizeof(struct ib_cc_congestion_entry); + ppd->congestion_entries = kzalloc(size, GFP_KERNEL); + if (!ppd->congestion_entries) + goto bail_1; + + size = sizeof(struct cc_table_shadow); + ppd->ccti_entries_shadow = kzalloc(size, GFP_KERNEL); + if (!ppd->ccti_entries_shadow) + goto bail_2; + + size = sizeof(struct ib_cc_congestion_setting_attr); + ppd->congestion_entries_shadow = kzalloc(size, GFP_KERNEL); + if (!ppd->congestion_entries_shadow) + goto bail_3; + + return 0; + +bail_3: + kfree(ppd->ccti_entries_shadow); + ppd->ccti_entries_shadow = NULL; +bail_2: + kfree(ppd->congestion_entries); + ppd->congestion_entries = NULL; +bail_1: + kfree(ppd->ccti_entries); + ppd->ccti_entries = NULL; +bail: + /* User is intentionally disabling the congestion control agent */ + if (!qib_cc_table_size) + return 0; + + if (qib_cc_table_size < IB_CCT_MIN_ENTRIES) { + qib_cc_table_size = 0; + qib_dev_err(dd, + "Congestion Control table size %d less than minimum %d for port %d\n", + qib_cc_table_size, IB_CCT_MIN_ENTRIES, port); + } + + qib_dev_err(dd, "Congestion Control Agent disabled for port %d\n", + port); + return 0; +} + +static int init_pioavailregs(struct qib_devdata *dd) +{ + int ret, pidx; + u64 *status_page; + + dd->pioavailregs_dma = dma_alloc_coherent( + &dd->pcidev->dev, PAGE_SIZE, &dd->pioavailregs_phys, + GFP_KERNEL); + if (!dd->pioavailregs_dma) { + qib_dev_err(dd, + "failed to allocate PIOavail reg area in memory\n"); + ret = -ENOMEM; + goto done; + } + + /* + * We really want L2 cache aligned, but for current CPUs of + * interest, they are the same. + */ + status_page = (u64 *) + ((char *) dd->pioavailregs_dma + + ((2 * L1_CACHE_BYTES + + dd->pioavregs * sizeof(u64)) & ~L1_CACHE_BYTES)); + /* device status comes first, for backwards compatibility */ + dd->devstatusp = status_page; + *status_page++ = 0; + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + dd->pport[pidx].statusp = status_page; + *status_page++ = 0; + } + + /* + * Setup buffer to hold freeze and other messages, accessible to + * apps, following statusp. This is per-unit, not per port. + */ + dd->freezemsg = (char *) status_page; + *dd->freezemsg = 0; + /* length of msg buffer is "whatever is left" */ + ret = (char *) status_page - (char *) dd->pioavailregs_dma; + dd->freezelen = PAGE_SIZE - ret; + + ret = 0; + +done: + return ret; +} + +/** + * init_shadow_tids - allocate the shadow TID array + * @dd: the qlogic_ib device + * + * allocate the shadow TID array, so we can qib_munlock previous + * entries. It may make more sense to move the pageshadow to the + * ctxt data structure, so we only allocate memory for ctxts actually + * in use, since we at 8k per ctxt, now. + * We don't want failures here to prevent use of the driver/chip, + * so no return value. + */ +static void init_shadow_tids(struct qib_devdata *dd) +{ + struct page **pages; + dma_addr_t *addrs; + + pages = vzalloc(array_size(sizeof(struct page *), + dd->cfgctxts * dd->rcvtidcnt)); + if (!pages) + goto bail; + + addrs = vzalloc(array_size(sizeof(dma_addr_t), + dd->cfgctxts * dd->rcvtidcnt)); + if (!addrs) + goto bail_free; + + dd->pageshadow = pages; + dd->physshadow = addrs; + return; + +bail_free: + vfree(pages); +bail: + dd->pageshadow = NULL; +} + +/* + * Do initialization for device that is only needed on + * first detect, not on resets. + */ +static int loadtime_init(struct qib_devdata *dd) +{ + int ret = 0; + + if (((dd->revision >> QLOGIC_IB_R_SOFTWARE_SHIFT) & + QLOGIC_IB_R_SOFTWARE_MASK) != QIB_CHIP_SWVERSION) { + qib_dev_err(dd, + "Driver only handles version %d, chip swversion is %d (%llx), failing\n", + QIB_CHIP_SWVERSION, + (int)(dd->revision >> + QLOGIC_IB_R_SOFTWARE_SHIFT) & + QLOGIC_IB_R_SOFTWARE_MASK, + (unsigned long long) dd->revision); + ret = -ENOSYS; + goto done; + } + + if (dd->revision & QLOGIC_IB_R_EMULATOR_MASK) + qib_devinfo(dd->pcidev, "%s", dd->boardversion); + + spin_lock_init(&dd->pioavail_lock); + spin_lock_init(&dd->sendctrl_lock); + spin_lock_init(&dd->uctxt_lock); + spin_lock_init(&dd->qib_diag_trans_lock); + spin_lock_init(&dd->eep_st_lock); + mutex_init(&dd->eep_lock); + + if (qib_mini_init) + goto done; + + ret = init_pioavailregs(dd); + init_shadow_tids(dd); + + qib_get_eeprom_info(dd); + + /* setup time (don't start yet) to verify we got interrupt */ + timer_setup(&dd->intrchk_timer, verify_interrupt, 0); +done: + return ret; +} + +/** + * init_after_reset - re-initialize after a reset + * @dd: the qlogic_ib device + * + * sanity check at least some of the values after reset, and + * ensure no receive or transmit (explicitly, in case reset + * failed + */ +static int init_after_reset(struct qib_devdata *dd) +{ + int i; + + /* + * Ensure chip does no sends or receives, tail updates, or + * pioavail updates while we re-initialize. This is mostly + * for the driver data structures, not chip registers. + */ + for (i = 0; i < dd->num_pports; ++i) { + /* + * ctxt == -1 means "all contexts". Only really safe for + * _dis_abling things, as here. + */ + dd->f_rcvctrl(dd->pport + i, QIB_RCVCTRL_CTXT_DIS | + QIB_RCVCTRL_INTRAVAIL_DIS | + QIB_RCVCTRL_TAILUPD_DIS, -1); + /* Redundant across ports for some, but no big deal. */ + dd->f_sendctrl(dd->pport + i, QIB_SENDCTRL_SEND_DIS | + QIB_SENDCTRL_AVAIL_DIS); + } + + return 0; +} + +static void enable_chip(struct qib_devdata *dd) +{ + u64 rcvmask; + int i; + + /* + * Enable PIO send, and update of PIOavail regs to memory. + */ + for (i = 0; i < dd->num_pports; ++i) + dd->f_sendctrl(dd->pport + i, QIB_SENDCTRL_SEND_ENB | + QIB_SENDCTRL_AVAIL_ENB); + /* + * Enable kernel ctxts' receive and receive interrupt. + * Other ctxts done as user opens and inits them. + */ + rcvmask = QIB_RCVCTRL_CTXT_ENB | QIB_RCVCTRL_INTRAVAIL_ENB; + rcvmask |= (dd->flags & QIB_NODMA_RTAIL) ? + QIB_RCVCTRL_TAILUPD_DIS : QIB_RCVCTRL_TAILUPD_ENB; + for (i = 0; dd->rcd && i < dd->first_user_ctxt; ++i) { + struct qib_ctxtdata *rcd = dd->rcd[i]; + + if (rcd) + dd->f_rcvctrl(rcd->ppd, rcvmask, i); + } +} + +static void verify_interrupt(struct timer_list *t) +{ + struct qib_devdata *dd = from_timer(dd, t, intrchk_timer); + u64 int_counter; + + if (!dd) + return; /* being torn down */ + + /* + * If we don't have a lid or any interrupts, let the user know and + * don't bother checking again. + */ + int_counter = qib_int_counter(dd) - dd->z_int_counter; + if (int_counter == 0) { + if (!dd->f_intr_fallback(dd)) + dev_err(&dd->pcidev->dev, + "No interrupts detected, not usable.\n"); + else /* re-arm the timer to see if fallback works */ + mod_timer(&dd->intrchk_timer, jiffies + HZ/2); + } +} + +static void init_piobuf_state(struct qib_devdata *dd) +{ + int i, pidx; + u32 uctxts; + + /* + * Ensure all buffers are free, and fifos empty. Buffers + * are common, so only do once for port 0. + * + * After enable and qib_chg_pioavailkernel so we can safely + * enable pioavail updates and PIOENABLE. After this, packets + * are ready and able to go out. + */ + dd->f_sendctrl(dd->pport, QIB_SENDCTRL_DISARM_ALL); + for (pidx = 0; pidx < dd->num_pports; ++pidx) + dd->f_sendctrl(dd->pport + pidx, QIB_SENDCTRL_FLUSH); + + /* + * If not all sendbufs are used, add the one to each of the lower + * numbered contexts. pbufsctxt and lastctxt_piobuf are + * calculated in chip-specific code because it may cause some + * chip-specific adjustments to be made. + */ + uctxts = dd->cfgctxts - dd->first_user_ctxt; + dd->ctxts_extrabuf = dd->pbufsctxt ? + dd->lastctxt_piobuf - (dd->pbufsctxt * uctxts) : 0; + + /* + * Set up the shadow copies of the piobufavail registers, + * which we compare against the chip registers for now, and + * the in memory DMA'ed copies of the registers. + * By now pioavail updates to memory should have occurred, so + * copy them into our working/shadow registers; this is in + * case something went wrong with abort, but mostly to get the + * initial values of the generation bit correct. + */ + for (i = 0; i < dd->pioavregs; i++) { + __le64 tmp; + + tmp = dd->pioavailregs_dma[i]; + /* + * Don't need to worry about pioavailkernel here + * because we will call qib_chg_pioavailkernel() later + * in initialization, to busy out buffers as needed. + */ + dd->pioavailshadow[i] = le64_to_cpu(tmp); + } + while (i < ARRAY_SIZE(dd->pioavailshadow)) + dd->pioavailshadow[i++] = 0; /* for debugging sanity */ + + /* after pioavailshadow is setup */ + qib_chg_pioavailkernel(dd, 0, dd->piobcnt2k + dd->piobcnt4k, + TXCHK_CHG_TYPE_KERN, NULL); + dd->f_initvl15_bufs(dd); +} + +/** + * qib_create_workqueues - create per port workqueues + * @dd: the qlogic_ib device + */ +static int qib_create_workqueues(struct qib_devdata *dd) +{ + int pidx; + struct qib_pportdata *ppd; + + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + ppd = dd->pport + pidx; + if (!ppd->qib_wq) { + char wq_name[8]; /* 3 + 2 + 1 + 1 + 1 */ + + snprintf(wq_name, sizeof(wq_name), "qib%d_%d", + dd->unit, pidx); + ppd->qib_wq = alloc_ordered_workqueue(wq_name, + WQ_MEM_RECLAIM); + if (!ppd->qib_wq) + goto wq_error; + } + } + return 0; +wq_error: + pr_err("create_singlethread_workqueue failed for port %d\n", + pidx + 1); + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + ppd = dd->pport + pidx; + if (ppd->qib_wq) { + destroy_workqueue(ppd->qib_wq); + ppd->qib_wq = NULL; + } + } + return -ENOMEM; +} + +static void qib_free_pportdata(struct qib_pportdata *ppd) +{ + free_percpu(ppd->ibport_data.pmastats); + free_percpu(ppd->ibport_data.rvp.rc_acks); + free_percpu(ppd->ibport_data.rvp.rc_qacks); + free_percpu(ppd->ibport_data.rvp.rc_delayed_comp); + ppd->ibport_data.pmastats = NULL; +} + +/** + * qib_init - do the actual initialization sequence on the chip + * @dd: the qlogic_ib device + * @reinit: reinitializing, so don't allocate new memory + * + * Do the actual initialization sequence on the chip. This is done + * both from the init routine called from the PCI infrastructure, and + * when we reset the chip, or detect that it was reset internally, + * or it's administratively re-enabled. + * + * Memory allocation here and in called routines is only done in + * the first case (reinit == 0). We have to be careful, because even + * without memory allocation, we need to re-write all the chip registers + * TIDs, etc. after the reset or enable has completed. + */ +int qib_init(struct qib_devdata *dd, int reinit) +{ + int ret = 0, pidx, lastfail = 0; + u32 portok = 0; + unsigned i; + struct qib_ctxtdata *rcd; + struct qib_pportdata *ppd; + unsigned long flags; + + /* Set linkstate to unknown, so we can watch for a transition. */ + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + ppd = dd->pport + pidx; + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~(QIBL_LINKACTIVE | QIBL_LINKARMED | + QIBL_LINKDOWN | QIBL_LINKINIT | + QIBL_LINKV); + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + } + + if (reinit) + ret = init_after_reset(dd); + else + ret = loadtime_init(dd); + if (ret) + goto done; + + /* Bypass most chip-init, to get to device creation */ + if (qib_mini_init) + return 0; + + ret = dd->f_late_initreg(dd); + if (ret) + goto done; + + /* dd->rcd can be NULL if early init failed */ + for (i = 0; dd->rcd && i < dd->first_user_ctxt; ++i) { + /* + * Set up the (kernel) rcvhdr queue and egr TIDs. If doing + * re-init, the simplest way to handle this is to free + * existing, and re-allocate. + * Need to re-create rest of ctxt 0 ctxtdata as well. + */ + rcd = dd->rcd[i]; + if (!rcd) + continue; + + lastfail = qib_create_rcvhdrq(dd, rcd); + if (!lastfail) + lastfail = qib_setup_eagerbufs(rcd); + if (lastfail) + qib_dev_err(dd, + "failed to allocate kernel ctxt's rcvhdrq and/or egr bufs\n"); + } + + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + int mtu; + + if (lastfail) + ret = lastfail; + ppd = dd->pport + pidx; + mtu = ib_mtu_enum_to_int(qib_ibmtu); + if (mtu == -1) { + mtu = QIB_DEFAULT_MTU; + qib_ibmtu = 0; /* don't leave invalid value */ + } + /* set max we can ever have for this driver load */ + ppd->init_ibmaxlen = min(mtu > 2048 ? + dd->piosize4k : dd->piosize2k, + dd->rcvegrbufsize + + (dd->rcvhdrentsize << 2)); + /* + * Have to initialize ibmaxlen, but this will normally + * change immediately in qib_set_mtu(). + */ + ppd->ibmaxlen = ppd->init_ibmaxlen; + qib_set_mtu(ppd, mtu); + + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags |= QIBL_IB_LINK_DISABLED; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + + lastfail = dd->f_bringup_serdes(ppd); + if (lastfail) { + qib_devinfo(dd->pcidev, + "Failed to bringup IB port %u\n", ppd->port); + lastfail = -ENETDOWN; + continue; + } + + portok++; + } + + if (!portok) { + /* none of the ports initialized */ + if (!ret && lastfail) + ret = lastfail; + else if (!ret) + ret = -ENETDOWN; + /* but continue on, so we can debug cause */ + } + + enable_chip(dd); + + init_piobuf_state(dd); + +done: + if (!ret) { + /* chip is OK for user apps; mark it as initialized */ + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + ppd = dd->pport + pidx; + /* + * Set status even if port serdes is not initialized + * so that diags will work. + */ + *ppd->statusp |= QIB_STATUS_CHIP_PRESENT | + QIB_STATUS_INITTED; + if (!ppd->link_speed_enabled) + continue; + if (dd->flags & QIB_HAS_SEND_DMA) + ret = qib_setup_sdma(ppd); + timer_setup(&ppd->hol_timer, qib_hol_event, 0); + ppd->hol_state = QIB_HOL_UP; + } + + /* now we can enable all interrupts from the chip */ + dd->f_set_intr_state(dd, 1); + + /* + * Setup to verify we get an interrupt, and fallback + * to an alternate if necessary and possible. + */ + mod_timer(&dd->intrchk_timer, jiffies + HZ/2); + /* start stats retrieval timer */ + mod_timer(&dd->stats_timer, jiffies + HZ * ACTIVITY_TIMER); + } + + /* if ret is non-zero, we probably should do some cleanup here... */ + return ret; +} + +/* + * These next two routines are placeholders in case we don't have per-arch + * code for controlling write combining. If explicit control of write + * combining is not available, performance will probably be awful. + */ + +int __attribute__((weak)) qib_enable_wc(struct qib_devdata *dd) +{ + return -EOPNOTSUPP; +} + +void __attribute__((weak)) qib_disable_wc(struct qib_devdata *dd) +{ +} + +struct qib_devdata *qib_lookup(int unit) +{ + return xa_load(&qib_dev_table, unit); +} + +/* + * Stop the timers during unit shutdown, or after an error late + * in initialization. + */ +static void qib_stop_timers(struct qib_devdata *dd) +{ + struct qib_pportdata *ppd; + int pidx; + + if (dd->stats_timer.function) + del_timer_sync(&dd->stats_timer); + if (dd->intrchk_timer.function) + del_timer_sync(&dd->intrchk_timer); + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + ppd = dd->pport + pidx; + if (ppd->hol_timer.function) + del_timer_sync(&ppd->hol_timer); + if (ppd->led_override_timer.function) { + del_timer_sync(&ppd->led_override_timer); + atomic_set(&ppd->led_override_timer_active, 0); + } + if (ppd->symerr_clear_timer.function) + del_timer_sync(&ppd->symerr_clear_timer); + } +} + +/** + * qib_shutdown_device - shut down a device + * @dd: the qlogic_ib device + * + * This is called to make the device quiet when we are about to + * unload the driver, and also when the device is administratively + * disabled. It does not free any data structures. + * Everything it does has to be setup again by qib_init(dd, 1) + */ +static void qib_shutdown_device(struct qib_devdata *dd) +{ + struct qib_pportdata *ppd; + unsigned pidx; + + if (dd->flags & QIB_SHUTDOWN) + return; + dd->flags |= QIB_SHUTDOWN; + + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + ppd = dd->pport + pidx; + + spin_lock_irq(&ppd->lflags_lock); + ppd->lflags &= ~(QIBL_LINKDOWN | QIBL_LINKINIT | + QIBL_LINKARMED | QIBL_LINKACTIVE | + QIBL_LINKV); + spin_unlock_irq(&ppd->lflags_lock); + *ppd->statusp &= ~(QIB_STATUS_IB_CONF | QIB_STATUS_IB_READY); + } + dd->flags &= ~QIB_INITTED; + + /* mask interrupts, but not errors */ + dd->f_set_intr_state(dd, 0); + + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + ppd = dd->pport + pidx; + dd->f_rcvctrl(ppd, QIB_RCVCTRL_TAILUPD_DIS | + QIB_RCVCTRL_CTXT_DIS | + QIB_RCVCTRL_INTRAVAIL_DIS | + QIB_RCVCTRL_PKEY_ENB, -1); + /* + * Gracefully stop all sends allowing any in progress to + * trickle out first. + */ + dd->f_sendctrl(ppd, QIB_SENDCTRL_CLEAR); + } + + /* + * Enough for anything that's going to trickle out to have actually + * done so. + */ + udelay(20); + + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + ppd = dd->pport + pidx; + dd->f_setextled(ppd, 0); /* make sure LEDs are off */ + + if (dd->flags & QIB_HAS_SEND_DMA) + qib_teardown_sdma(ppd); + + dd->f_sendctrl(ppd, QIB_SENDCTRL_AVAIL_DIS | + QIB_SENDCTRL_SEND_DIS); + /* + * Clear SerdesEnable. + * We can't count on interrupts since we are stopping. + */ + dd->f_quiet_serdes(ppd); + + if (ppd->qib_wq) { + destroy_workqueue(ppd->qib_wq); + ppd->qib_wq = NULL; + } + qib_free_pportdata(ppd); + } + +} + +/** + * qib_free_ctxtdata - free a context's allocated data + * @dd: the qlogic_ib device + * @rcd: the ctxtdata structure + * + * free up any allocated data for a context + * This should not touch anything that would affect a simultaneous + * re-allocation of context data, because it is called after qib_mutex + * is released (and can be called from reinit as well). + * It should never change any chip state, or global driver state. + */ +void qib_free_ctxtdata(struct qib_devdata *dd, struct qib_ctxtdata *rcd) +{ + if (!rcd) + return; + + if (rcd->rcvhdrq) { + dma_free_coherent(&dd->pcidev->dev, rcd->rcvhdrq_size, + rcd->rcvhdrq, rcd->rcvhdrq_phys); + rcd->rcvhdrq = NULL; + if (rcd->rcvhdrtail_kvaddr) { + dma_free_coherent(&dd->pcidev->dev, PAGE_SIZE, + rcd->rcvhdrtail_kvaddr, + rcd->rcvhdrqtailaddr_phys); + rcd->rcvhdrtail_kvaddr = NULL; + } + } + if (rcd->rcvegrbuf) { + unsigned e; + + for (e = 0; e < rcd->rcvegrbuf_chunks; e++) { + void *base = rcd->rcvegrbuf[e]; + size_t size = rcd->rcvegrbuf_size; + + dma_free_coherent(&dd->pcidev->dev, size, + base, rcd->rcvegrbuf_phys[e]); + } + kfree(rcd->rcvegrbuf); + rcd->rcvegrbuf = NULL; + kfree(rcd->rcvegrbuf_phys); + rcd->rcvegrbuf_phys = NULL; + rcd->rcvegrbuf_chunks = 0; + } + + kfree(rcd->tid_pg_list); + vfree(rcd->user_event_mask); + vfree(rcd->subctxt_uregbase); + vfree(rcd->subctxt_rcvegrbuf); + vfree(rcd->subctxt_rcvhdr_base); +#ifdef CONFIG_DEBUG_FS + kfree(rcd->opstats); + rcd->opstats = NULL; +#endif + kfree(rcd); +} + +/* + * Perform a PIO buffer bandwidth write test, to verify proper system + * configuration. Even when all the setup calls work, occasionally + * BIOS or other issues can prevent write combining from working, or + * can cause other bandwidth problems to the chip. + * + * This test simply writes the same buffer over and over again, and + * measures close to the peak bandwidth to the chip (not testing + * data bandwidth to the wire). On chips that use an address-based + * trigger to send packets to the wire, this is easy. On chips that + * use a count to trigger, we want to make sure that the packet doesn't + * go out on the wire, or trigger flow control checks. + */ +static void qib_verify_pioperf(struct qib_devdata *dd) +{ + u32 pbnum, cnt, lcnt; + u32 __iomem *piobuf; + u32 *addr; + u64 msecs, emsecs; + + piobuf = dd->f_getsendbuf(dd->pport, 0ULL, &pbnum); + if (!piobuf) { + qib_devinfo(dd->pcidev, + "No PIObufs for checking perf, skipping\n"); + return; + } + + /* + * Enough to give us a reasonable test, less than piobuf size, and + * likely multiple of store buffer length. + */ + cnt = 1024; + + addr = vmalloc(cnt); + if (!addr) + goto done; + + preempt_disable(); /* we want reasonably accurate elapsed time */ + msecs = 1 + jiffies_to_msecs(jiffies); + for (lcnt = 0; lcnt < 10000U; lcnt++) { + /* wait until we cross msec boundary */ + if (jiffies_to_msecs(jiffies) >= msecs) + break; + udelay(1); + } + + dd->f_set_armlaunch(dd, 0); + + /* + * length 0, no dwords actually sent + */ + writeq(0, piobuf); + qib_flush_wc(); + + /* + * This is only roughly accurate, since even with preempt we + * still take interrupts that could take a while. Running for + * >= 5 msec seems to get us "close enough" to accurate values. + */ + msecs = jiffies_to_msecs(jiffies); + for (emsecs = lcnt = 0; emsecs <= 5UL; lcnt++) { + qib_pio_copy(piobuf + 64, addr, cnt >> 2); + emsecs = jiffies_to_msecs(jiffies) - msecs; + } + + /* 1 GiB/sec, slightly over IB SDR line rate */ + if (lcnt < (emsecs * 1024U)) + qib_dev_err(dd, + "Performance problem: bandwidth to PIO buffers is only %u MiB/sec\n", + lcnt / (u32) emsecs); + + preempt_enable(); + + vfree(addr); + +done: + /* disarm piobuf, so it's available again */ + dd->f_sendctrl(dd->pport, QIB_SENDCTRL_DISARM_BUF(pbnum)); + qib_sendbuf_done(dd, pbnum); + dd->f_set_armlaunch(dd, 1); +} + +void qib_free_devdata(struct qib_devdata *dd) +{ + unsigned long flags; + + xa_lock_irqsave(&qib_dev_table, flags); + __xa_erase(&qib_dev_table, dd->unit); + xa_unlock_irqrestore(&qib_dev_table, flags); + +#ifdef CONFIG_DEBUG_FS + qib_dbg_ibdev_exit(&dd->verbs_dev); +#endif + free_percpu(dd->int_counter); + rvt_dealloc_device(&dd->verbs_dev.rdi); +} + +u64 qib_int_counter(struct qib_devdata *dd) +{ + int cpu; + u64 int_counter = 0; + + for_each_possible_cpu(cpu) + int_counter += *per_cpu_ptr(dd->int_counter, cpu); + return int_counter; +} + +u64 qib_sps_ints(void) +{ + unsigned long index, flags; + struct qib_devdata *dd; + u64 sps_ints = 0; + + xa_lock_irqsave(&qib_dev_table, flags); + xa_for_each(&qib_dev_table, index, dd) { + sps_ints += qib_int_counter(dd); + } + xa_unlock_irqrestore(&qib_dev_table, flags); + return sps_ints; +} + +/* + * Allocate our primary per-unit data structure. Must be done via verbs + * allocator, because the verbs cleanup process both does cleanup and + * free of the data structure. + * "extra" is for chip-specific data. + */ +struct qib_devdata *qib_alloc_devdata(struct pci_dev *pdev, size_t extra) +{ + struct qib_devdata *dd; + int ret, nports; + + /* extra is * number of ports */ + nports = extra / sizeof(struct qib_pportdata); + dd = (struct qib_devdata *)rvt_alloc_device(sizeof(*dd) + extra, + nports); + if (!dd) + return ERR_PTR(-ENOMEM); + + ret = xa_alloc_irq(&qib_dev_table, &dd->unit, dd, xa_limit_32b, + GFP_KERNEL); + if (ret < 0) { + qib_early_err(&pdev->dev, + "Could not allocate unit ID: error %d\n", -ret); + goto bail; + } + rvt_set_ibdev_name(&dd->verbs_dev.rdi, "%s%d", "qib", dd->unit); + + dd->int_counter = alloc_percpu(u64); + if (!dd->int_counter) { + ret = -ENOMEM; + qib_early_err(&pdev->dev, + "Could not allocate per-cpu int_counter\n"); + goto bail; + } + + if (!qib_cpulist_count) { + u32 count = num_online_cpus(); + + qib_cpulist = bitmap_zalloc(count, GFP_KERNEL); + if (qib_cpulist) + qib_cpulist_count = count; + } +#ifdef CONFIG_DEBUG_FS + qib_dbg_ibdev_init(&dd->verbs_dev); +#endif + return dd; +bail: + if (!list_empty(&dd->list)) + list_del_init(&dd->list); + rvt_dealloc_device(&dd->verbs_dev.rdi); + return ERR_PTR(ret); +} + +/* + * Called from freeze mode handlers, and from PCI error + * reporting code. Should be paranoid about state of + * system and data structures. + */ +void qib_disable_after_error(struct qib_devdata *dd) +{ + if (dd->flags & QIB_INITTED) { + u32 pidx; + + dd->flags &= ~QIB_INITTED; + if (dd->pport) + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + struct qib_pportdata *ppd; + + ppd = dd->pport + pidx; + if (dd->flags & QIB_PRESENT) { + qib_set_linkstate(ppd, + QIB_IB_LINKDOWN_DISABLE); + dd->f_setextled(ppd, 0); + } + *ppd->statusp &= ~QIB_STATUS_IB_READY; + } + } + + /* + * Mark as having had an error for driver, and also + * for /sys and status word mapped to user programs. + * This marks unit as not usable, until reset. + */ + if (dd->devstatusp) + *dd->devstatusp |= QIB_STATUS_HWERROR; +} + +static void qib_remove_one(struct pci_dev *); +static int qib_init_one(struct pci_dev *, const struct pci_device_id *); +static void qib_shutdown_one(struct pci_dev *); + +#define DRIVER_LOAD_MSG "Intel " QIB_DRV_NAME " loaded: " +#define PFX QIB_DRV_NAME ": " + +static const struct pci_device_id qib_pci_tbl[] = { + { PCI_DEVICE(PCI_VENDOR_ID_PATHSCALE, PCI_DEVICE_ID_QLOGIC_IB_6120) }, + { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_IB_7220) }, + { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_IB_7322) }, + { 0, } +}; + +MODULE_DEVICE_TABLE(pci, qib_pci_tbl); + +static struct pci_driver qib_driver = { + .name = QIB_DRV_NAME, + .probe = qib_init_one, + .remove = qib_remove_one, + .shutdown = qib_shutdown_one, + .id_table = qib_pci_tbl, + .err_handler = &qib_pci_err_handler, +}; + +#ifdef CONFIG_INFINIBAND_QIB_DCA + +static int qib_notify_dca(struct notifier_block *, unsigned long, void *); +static struct notifier_block dca_notifier = { + .notifier_call = qib_notify_dca, + .next = NULL, + .priority = 0 +}; + +static int qib_notify_dca_device(struct device *device, void *data) +{ + struct qib_devdata *dd = dev_get_drvdata(device); + unsigned long event = *(unsigned long *)data; + + return dd->f_notify_dca(dd, event); +} + +static int qib_notify_dca(struct notifier_block *nb, unsigned long event, + void *p) +{ + int rval; + + rval = driver_for_each_device(&qib_driver.driver, NULL, + &event, qib_notify_dca_device); + return rval ? NOTIFY_BAD : NOTIFY_DONE; +} + +#endif + +/* + * Do all the generic driver unit- and chip-independent memory + * allocation and initialization. + */ +static int __init qib_ib_init(void) +{ + int ret; + + ret = qib_dev_init(); + if (ret) + goto bail; + + /* + * These must be called before the driver is registered with + * the PCI subsystem. + */ +#ifdef CONFIG_INFINIBAND_QIB_DCA + dca_register_notify(&dca_notifier); +#endif +#ifdef CONFIG_DEBUG_FS + qib_dbg_init(); +#endif + ret = pci_register_driver(&qib_driver); + if (ret < 0) { + pr_err("Unable to register driver: error %d\n", -ret); + goto bail_dev; + } + + /* not fatal if it doesn't work */ + if (qib_init_qibfs()) + pr_err("Unable to register ipathfs\n"); + goto bail; /* all OK */ + +bail_dev: +#ifdef CONFIG_INFINIBAND_QIB_DCA + dca_unregister_notify(&dca_notifier); +#endif +#ifdef CONFIG_DEBUG_FS + qib_dbg_exit(); +#endif + qib_dev_cleanup(); +bail: + return ret; +} + +module_init(qib_ib_init); + +/* + * Do the non-unit driver cleanup, memory free, etc. at unload. + */ +static void __exit qib_ib_cleanup(void) +{ + int ret; + + ret = qib_exit_qibfs(); + if (ret) + pr_err( + "Unable to cleanup counter filesystem: error %d\n", + -ret); + +#ifdef CONFIG_INFINIBAND_QIB_DCA + dca_unregister_notify(&dca_notifier); +#endif + pci_unregister_driver(&qib_driver); +#ifdef CONFIG_DEBUG_FS + qib_dbg_exit(); +#endif + + qib_cpulist_count = 0; + bitmap_free(qib_cpulist); + + WARN_ON(!xa_empty(&qib_dev_table)); + qib_dev_cleanup(); +} + +module_exit(qib_ib_cleanup); + +/* this can only be called after a successful initialization */ +static void cleanup_device_data(struct qib_devdata *dd) +{ + int ctxt; + int pidx; + struct qib_ctxtdata **tmp; + unsigned long flags; + + /* users can't do anything more with chip */ + for (pidx = 0; pidx < dd->num_pports; ++pidx) { + if (dd->pport[pidx].statusp) + *dd->pport[pidx].statusp &= ~QIB_STATUS_CHIP_PRESENT; + + spin_lock(&dd->pport[pidx].cc_shadow_lock); + + kfree(dd->pport[pidx].congestion_entries); + dd->pport[pidx].congestion_entries = NULL; + kfree(dd->pport[pidx].ccti_entries); + dd->pport[pidx].ccti_entries = NULL; + kfree(dd->pport[pidx].ccti_entries_shadow); + dd->pport[pidx].ccti_entries_shadow = NULL; + kfree(dd->pport[pidx].congestion_entries_shadow); + dd->pport[pidx].congestion_entries_shadow = NULL; + + spin_unlock(&dd->pport[pidx].cc_shadow_lock); + } + + qib_disable_wc(dd); + + if (dd->pioavailregs_dma) { + dma_free_coherent(&dd->pcidev->dev, PAGE_SIZE, + (void *) dd->pioavailregs_dma, + dd->pioavailregs_phys); + dd->pioavailregs_dma = NULL; + } + + if (dd->pageshadow) { + struct page **tmpp = dd->pageshadow; + dma_addr_t *tmpd = dd->physshadow; + int i; + + for (ctxt = 0; ctxt < dd->cfgctxts; ctxt++) { + int ctxt_tidbase = ctxt * dd->rcvtidcnt; + int maxtid = ctxt_tidbase + dd->rcvtidcnt; + + for (i = ctxt_tidbase; i < maxtid; i++) { + if (!tmpp[i]) + continue; + dma_unmap_page(&dd->pcidev->dev, tmpd[i], + PAGE_SIZE, DMA_FROM_DEVICE); + qib_release_user_pages(&tmpp[i], 1); + tmpp[i] = NULL; + } + } + + dd->pageshadow = NULL; + vfree(tmpp); + dd->physshadow = NULL; + vfree(tmpd); + } + + /* + * Free any resources still in use (usually just kernel contexts) + * at unload; we do for ctxtcnt, because that's what we allocate. + * We acquire lock to be really paranoid that rcd isn't being + * accessed from some interrupt-related code (that should not happen, + * but best to be sure). + */ + spin_lock_irqsave(&dd->uctxt_lock, flags); + tmp = dd->rcd; + dd->rcd = NULL; + spin_unlock_irqrestore(&dd->uctxt_lock, flags); + for (ctxt = 0; tmp && ctxt < dd->ctxtcnt; ctxt++) { + struct qib_ctxtdata *rcd = tmp[ctxt]; + + tmp[ctxt] = NULL; /* debugging paranoia */ + qib_free_ctxtdata(dd, rcd); + } + kfree(tmp); +} + +/* + * Clean up on unit shutdown, or error during unit load after + * successful initialization. + */ +static void qib_postinit_cleanup(struct qib_devdata *dd) +{ + /* + * Clean up chip-specific stuff. + * We check for NULL here, because it's outside + * the kregbase check, and we need to call it + * after the free_irq. Thus it's possible that + * the function pointers were never initialized. + */ + if (dd->f_cleanup) + dd->f_cleanup(dd); + + qib_pcie_ddcleanup(dd); + + cleanup_device_data(dd); + + qib_free_devdata(dd); +} + +static int qib_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + int ret, j, pidx, initfail; + struct qib_devdata *dd = NULL; + + ret = qib_pcie_init(pdev, ent); + if (ret) + goto bail; + + /* + * Do device-specific initialiation, function table setup, dd + * allocation, etc. + */ + switch (ent->device) { + case PCI_DEVICE_ID_QLOGIC_IB_6120: +#ifdef CONFIG_PCI_MSI + dd = qib_init_iba6120_funcs(pdev, ent); +#else + qib_early_err(&pdev->dev, + "Intel PCIE device 0x%x cannot work if CONFIG_PCI_MSI is not enabled\n", + ent->device); + dd = ERR_PTR(-ENODEV); +#endif + break; + + case PCI_DEVICE_ID_QLOGIC_IB_7220: + dd = qib_init_iba7220_funcs(pdev, ent); + break; + + case PCI_DEVICE_ID_QLOGIC_IB_7322: + dd = qib_init_iba7322_funcs(pdev, ent); + break; + + default: + qib_early_err(&pdev->dev, + "Failing on unknown Intel deviceid 0x%x\n", + ent->device); + ret = -ENODEV; + } + + if (IS_ERR(dd)) + ret = PTR_ERR(dd); + if (ret) + goto bail; /* error already printed */ + + ret = qib_create_workqueues(dd); + if (ret) + goto bail; + + /* do the generic initialization */ + initfail = qib_init(dd, 0); + + ret = qib_register_ib_device(dd); + + /* + * Now ready for use. this should be cleared whenever we + * detect a reset, or initiate one. If earlier failure, + * we still create devices, so diags, etc. can be used + * to determine cause of problem. + */ + if (!qib_mini_init && !initfail && !ret) + dd->flags |= QIB_INITTED; + + j = qib_device_create(dd); + if (j) + qib_dev_err(dd, "Failed to create /dev devices: %d\n", -j); + j = qibfs_add(dd); + if (j) + qib_dev_err(dd, "Failed filesystem setup for counters: %d\n", + -j); + + if (qib_mini_init || initfail || ret) { + qib_stop_timers(dd); + flush_workqueue(ib_wq); + for (pidx = 0; pidx < dd->num_pports; ++pidx) + dd->f_quiet_serdes(dd->pport + pidx); + if (qib_mini_init) + goto bail; + if (!j) { + (void) qibfs_remove(dd); + qib_device_remove(dd); + } + if (!ret) + qib_unregister_ib_device(dd); + qib_postinit_cleanup(dd); + if (initfail) + ret = initfail; + goto bail; + } + + ret = qib_enable_wc(dd); + if (ret) { + qib_dev_err(dd, + "Write combining not enabled (err %d): performance may be poor\n", + -ret); + ret = 0; + } + + qib_verify_pioperf(dd); +bail: + return ret; +} + +static void qib_remove_one(struct pci_dev *pdev) +{ + struct qib_devdata *dd = pci_get_drvdata(pdev); + int ret; + + /* unregister from IB core */ + qib_unregister_ib_device(dd); + + /* + * Disable the IB link, disable interrupts on the device, + * clear dma engines, etc. + */ + if (!qib_mini_init) + qib_shutdown_device(dd); + + qib_stop_timers(dd); + + /* wait until all of our (qsfp) queue_work() calls complete */ + flush_workqueue(ib_wq); + + ret = qibfs_remove(dd); + if (ret) + qib_dev_err(dd, "Failed counters filesystem cleanup: %d\n", + -ret); + + qib_device_remove(dd); + + qib_postinit_cleanup(dd); +} + +static void qib_shutdown_one(struct pci_dev *pdev) +{ + struct qib_devdata *dd = pci_get_drvdata(pdev); + + qib_shutdown_device(dd); +} + +/** + * qib_create_rcvhdrq - create a receive header queue + * @dd: the qlogic_ib device + * @rcd: the context data + * + * This must be contiguous memory (from an i/o perspective), and must be + * DMA'able (which means for some systems, it will go through an IOMMU, + * or be forced into a low address range). + */ +int qib_create_rcvhdrq(struct qib_devdata *dd, struct qib_ctxtdata *rcd) +{ + unsigned amt; + int old_node_id; + + if (!rcd->rcvhdrq) { + dma_addr_t phys_hdrqtail; + gfp_t gfp_flags; + + amt = ALIGN(dd->rcvhdrcnt * dd->rcvhdrentsize * + sizeof(u32), PAGE_SIZE); + gfp_flags = (rcd->ctxt >= dd->first_user_ctxt) ? + GFP_USER : GFP_KERNEL; + + old_node_id = dev_to_node(&dd->pcidev->dev); + set_dev_node(&dd->pcidev->dev, rcd->node_id); + rcd->rcvhdrq = dma_alloc_coherent( + &dd->pcidev->dev, amt, &rcd->rcvhdrq_phys, + gfp_flags | __GFP_COMP); + set_dev_node(&dd->pcidev->dev, old_node_id); + + if (!rcd->rcvhdrq) { + qib_dev_err(dd, + "attempt to allocate %d bytes for ctxt %u rcvhdrq failed\n", + amt, rcd->ctxt); + goto bail; + } + + if (rcd->ctxt >= dd->first_user_ctxt) { + rcd->user_event_mask = vmalloc_user(PAGE_SIZE); + if (!rcd->user_event_mask) + goto bail_free_hdrq; + } + + if (!(dd->flags & QIB_NODMA_RTAIL)) { + set_dev_node(&dd->pcidev->dev, rcd->node_id); + rcd->rcvhdrtail_kvaddr = dma_alloc_coherent( + &dd->pcidev->dev, PAGE_SIZE, &phys_hdrqtail, + gfp_flags); + set_dev_node(&dd->pcidev->dev, old_node_id); + if (!rcd->rcvhdrtail_kvaddr) + goto bail_free; + rcd->rcvhdrqtailaddr_phys = phys_hdrqtail; + } + + rcd->rcvhdrq_size = amt; + } + + /* clear for security and sanity on each use */ + memset(rcd->rcvhdrq, 0, rcd->rcvhdrq_size); + if (rcd->rcvhdrtail_kvaddr) + memset(rcd->rcvhdrtail_kvaddr, 0, PAGE_SIZE); + return 0; + +bail_free: + qib_dev_err(dd, + "attempt to allocate 1 page for ctxt %u rcvhdrqtailaddr failed\n", + rcd->ctxt); + vfree(rcd->user_event_mask); + rcd->user_event_mask = NULL; +bail_free_hdrq: + dma_free_coherent(&dd->pcidev->dev, amt, rcd->rcvhdrq, + rcd->rcvhdrq_phys); + rcd->rcvhdrq = NULL; +bail: + return -ENOMEM; +} + +/** + * qib_setup_eagerbufs - allocate eager buffers, both kernel and user contexts. + * @rcd: the context we are setting up. + * + * Allocate the eager TID buffers and program them into hip. + * They are no longer completely contiguous, we do multiple allocation + * calls. Otherwise we get the OOM code involved, by asking for too + * much per call, with disastrous results on some kernels. + */ +int qib_setup_eagerbufs(struct qib_ctxtdata *rcd) +{ + struct qib_devdata *dd = rcd->dd; + unsigned e, egrcnt, egrperchunk, chunk, egrsize, egroff; + size_t size; + gfp_t gfp_flags; + int old_node_id; + + /* + * GFP_USER, but without GFP_FS, so buffer cache can be + * coalesced (we hope); otherwise, even at order 4, + * heavy filesystem activity makes these fail, and we can + * use compound pages. + */ + gfp_flags = __GFP_RECLAIM | __GFP_IO | __GFP_COMP; + + egrcnt = rcd->rcvegrcnt; + egroff = rcd->rcvegr_tid_base; + egrsize = dd->rcvegrbufsize; + + chunk = rcd->rcvegrbuf_chunks; + egrperchunk = rcd->rcvegrbufs_perchunk; + size = rcd->rcvegrbuf_size; + if (!rcd->rcvegrbuf) { + rcd->rcvegrbuf = + kcalloc_node(chunk, sizeof(rcd->rcvegrbuf[0]), + GFP_KERNEL, rcd->node_id); + if (!rcd->rcvegrbuf) + goto bail; + } + if (!rcd->rcvegrbuf_phys) { + rcd->rcvegrbuf_phys = + kmalloc_array_node(chunk, + sizeof(rcd->rcvegrbuf_phys[0]), + GFP_KERNEL, rcd->node_id); + if (!rcd->rcvegrbuf_phys) + goto bail_rcvegrbuf; + } + for (e = 0; e < rcd->rcvegrbuf_chunks; e++) { + if (rcd->rcvegrbuf[e]) + continue; + + old_node_id = dev_to_node(&dd->pcidev->dev); + set_dev_node(&dd->pcidev->dev, rcd->node_id); + rcd->rcvegrbuf[e] = + dma_alloc_coherent(&dd->pcidev->dev, size, + &rcd->rcvegrbuf_phys[e], + gfp_flags); + set_dev_node(&dd->pcidev->dev, old_node_id); + if (!rcd->rcvegrbuf[e]) + goto bail_rcvegrbuf_phys; + } + + rcd->rcvegr_phys = rcd->rcvegrbuf_phys[0]; + + for (e = chunk = 0; chunk < rcd->rcvegrbuf_chunks; chunk++) { + dma_addr_t pa = rcd->rcvegrbuf_phys[chunk]; + unsigned i; + + /* clear for security and sanity on each use */ + memset(rcd->rcvegrbuf[chunk], 0, size); + + for (i = 0; e < egrcnt && i < egrperchunk; e++, i++) { + dd->f_put_tid(dd, e + egroff + + (u64 __iomem *) + ((char __iomem *) + dd->kregbase + + dd->rcvegrbase), + RCVHQ_RCV_TYPE_EAGER, pa); + pa += egrsize; + } + cond_resched(); /* don't hog the cpu */ + } + + return 0; + +bail_rcvegrbuf_phys: + for (e = 0; e < rcd->rcvegrbuf_chunks && rcd->rcvegrbuf[e]; e++) + dma_free_coherent(&dd->pcidev->dev, size, + rcd->rcvegrbuf[e], rcd->rcvegrbuf_phys[e]); + kfree(rcd->rcvegrbuf_phys); + rcd->rcvegrbuf_phys = NULL; +bail_rcvegrbuf: + kfree(rcd->rcvegrbuf); + rcd->rcvegrbuf = NULL; +bail: + return -ENOMEM; +} + +/* + * Note: Changes to this routine should be mirrored + * for the diagnostics routine qib_remap_ioaddr32(). + * There is also related code for VL15 buffers in qib_init_7322_variables(). + * The teardown code that unmaps is in qib_pcie_ddcleanup() + */ +int init_chip_wc_pat(struct qib_devdata *dd, u32 vl15buflen) +{ + u64 __iomem *qib_kregbase = NULL; + void __iomem *qib_piobase = NULL; + u64 __iomem *qib_userbase = NULL; + u64 qib_kreglen; + u64 qib_pio2koffset = dd->piobufbase & 0xffffffff; + u64 qib_pio4koffset = dd->piobufbase >> 32; + u64 qib_pio2klen = dd->piobcnt2k * dd->palign; + u64 qib_pio4klen = dd->piobcnt4k * dd->align4k; + u64 qib_physaddr = dd->physaddr; + u64 qib_piolen; + u64 qib_userlen = 0; + + /* + * Free the old mapping because the kernel will try to reuse the + * old mapping and not create a new mapping with the + * write combining attribute. + */ + iounmap(dd->kregbase); + dd->kregbase = NULL; + + /* + * Assumes chip address space looks like: + * - kregs + sregs + cregs + uregs (in any order) + * - piobufs (2K and 4K bufs in either order) + * or: + * - kregs + sregs + cregs (in any order) + * - piobufs (2K and 4K bufs in either order) + * - uregs + */ + if (dd->piobcnt4k == 0) { + qib_kreglen = qib_pio2koffset; + qib_piolen = qib_pio2klen; + } else if (qib_pio2koffset < qib_pio4koffset) { + qib_kreglen = qib_pio2koffset; + qib_piolen = qib_pio4koffset + qib_pio4klen - qib_kreglen; + } else { + qib_kreglen = qib_pio4koffset; + qib_piolen = qib_pio2koffset + qib_pio2klen - qib_kreglen; + } + qib_piolen += vl15buflen; + /* Map just the configured ports (not all hw ports) */ + if (dd->uregbase > qib_kreglen) + qib_userlen = dd->ureg_align * dd->cfgctxts; + + /* Sanity checks passed, now create the new mappings */ + qib_kregbase = ioremap(qib_physaddr, qib_kreglen); + if (!qib_kregbase) + goto bail; + + qib_piobase = ioremap_wc(qib_physaddr + qib_kreglen, qib_piolen); + if (!qib_piobase) + goto bail_kregbase; + + if (qib_userlen) { + qib_userbase = ioremap(qib_physaddr + dd->uregbase, + qib_userlen); + if (!qib_userbase) + goto bail_piobase; + } + + dd->kregbase = qib_kregbase; + dd->kregend = (u64 __iomem *) + ((char __iomem *) qib_kregbase + qib_kreglen); + dd->piobase = qib_piobase; + dd->pio2kbase = (void __iomem *) + (((char __iomem *) dd->piobase) + + qib_pio2koffset - qib_kreglen); + if (dd->piobcnt4k) + dd->pio4kbase = (void __iomem *) + (((char __iomem *) dd->piobase) + + qib_pio4koffset - qib_kreglen); + if (qib_userlen) + /* ureg will now be accessed relative to dd->userbase */ + dd->userbase = qib_userbase; + return 0; + +bail_piobase: + iounmap(qib_piobase); +bail_kregbase: + iounmap(qib_kregbase); +bail: + return -ENOMEM; +} diff --git a/drivers/infiniband/hw/qib/qib_intr.c b/drivers/infiniband/hw/qib/qib_intr.c new file mode 100644 index 000000000..85c3187d7 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_intr.c @@ -0,0 +1,240 @@ +/* + * Copyright (c) 2006, 2007, 2008, 2009, 2010 QLogic Corporation. + * All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/pci.h> +#include <linux/delay.h> + +#include "qib.h" +#include "qib_common.h" + +/** + * qib_format_hwmsg - format a single hwerror message + * @msg: message buffer + * @msgl: length of message buffer + * @hwmsg: message to add to message buffer + */ +static void qib_format_hwmsg(char *msg, size_t msgl, const char *hwmsg) +{ + strlcat(msg, "[", msgl); + strlcat(msg, hwmsg, msgl); + strlcat(msg, "]", msgl); +} + +/** + * qib_format_hwerrors - format hardware error messages for display + * @hwerrs: hardware errors bit vector + * @hwerrmsgs: hardware error descriptions + * @nhwerrmsgs: number of hwerrmsgs + * @msg: message buffer + * @msgl: message buffer length + */ +void qib_format_hwerrors(u64 hwerrs, const struct qib_hwerror_msgs *hwerrmsgs, + size_t nhwerrmsgs, char *msg, size_t msgl) +{ + int i; + + for (i = 0; i < nhwerrmsgs; i++) + if (hwerrs & hwerrmsgs[i].mask) + qib_format_hwmsg(msg, msgl, hwerrmsgs[i].msg); +} + +static void signal_ib_event(struct qib_pportdata *ppd, enum ib_event_type ev) +{ + struct ib_event event; + struct qib_devdata *dd = ppd->dd; + + event.device = &dd->verbs_dev.rdi.ibdev; + event.element.port_num = ppd->port; + event.event = ev; + ib_dispatch_event(&event); +} + +void qib_handle_e_ibstatuschanged(struct qib_pportdata *ppd, u64 ibcs) +{ + struct qib_devdata *dd = ppd->dd; + unsigned long flags; + u32 lstate; + u8 ltstate; + enum ib_event_type ev = 0; + + lstate = dd->f_iblink_state(ibcs); /* linkstate */ + ltstate = dd->f_ibphys_portstate(ibcs); + + /* + * If linkstate transitions into INIT from any of the various down + * states, or if it transitions from any of the up (INIT or better) + * states into any of the down states (except link recovery), then + * call the chip-specific code to take appropriate actions. + * + * ppd->lflags could be 0 if this is the first time the interrupt + * handlers has been called but the link is already up. + */ + if (lstate >= IB_PORT_INIT && + (!ppd->lflags || (ppd->lflags & QIBL_LINKDOWN)) && + ltstate == IB_PHYSPORTSTATE_LINKUP) { + /* transitioned to UP */ + if (dd->f_ib_updown(ppd, 1, ibcs)) + goto skip_ibchange; /* chip-code handled */ + } else if (ppd->lflags & (QIBL_LINKINIT | QIBL_LINKARMED | + QIBL_LINKACTIVE | QIBL_IB_FORCE_NOTIFY)) { + if (ltstate != IB_PHYSPORTSTATE_LINKUP && + ltstate <= IB_PHYSPORTSTATE_CFG_TRAIN && + dd->f_ib_updown(ppd, 0, ibcs)) + goto skip_ibchange; /* chip-code handled */ + qib_set_uevent_bits(ppd, _QIB_EVENT_LINKDOWN_BIT); + } + + if (lstate != IB_PORT_DOWN) { + /* lstate is INIT, ARMED, or ACTIVE */ + if (lstate != IB_PORT_ACTIVE) { + *ppd->statusp &= ~QIB_STATUS_IB_READY; + if (ppd->lflags & QIBL_LINKACTIVE) + ev = IB_EVENT_PORT_ERR; + spin_lock_irqsave(&ppd->lflags_lock, flags); + if (lstate == IB_PORT_ARMED) { + ppd->lflags |= QIBL_LINKARMED | QIBL_LINKV; + ppd->lflags &= ~(QIBL_LINKINIT | + QIBL_LINKDOWN | QIBL_LINKACTIVE); + } else { + ppd->lflags |= QIBL_LINKINIT | QIBL_LINKV; + ppd->lflags &= ~(QIBL_LINKARMED | + QIBL_LINKDOWN | QIBL_LINKACTIVE); + } + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + /* start a 75msec timer to clear symbol errors */ + mod_timer(&ppd->symerr_clear_timer, + msecs_to_jiffies(75)); + } else if (ltstate == IB_PHYSPORTSTATE_LINKUP && + !(ppd->lflags & QIBL_LINKACTIVE)) { + /* active, but not active defered */ + qib_hol_up(ppd); /* useful only for 6120 now */ + *ppd->statusp |= + QIB_STATUS_IB_READY | QIB_STATUS_IB_CONF; + qib_clear_symerror_on_linkup(&ppd->symerr_clear_timer); + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags |= QIBL_LINKACTIVE | QIBL_LINKV; + ppd->lflags &= ~(QIBL_LINKINIT | + QIBL_LINKDOWN | QIBL_LINKARMED); + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + if (dd->flags & QIB_HAS_SEND_DMA) + qib_sdma_process_event(ppd, + qib_sdma_event_e30_go_running); + ev = IB_EVENT_PORT_ACTIVE; + dd->f_setextled(ppd, 1); + } + } else { /* down */ + if (ppd->lflags & QIBL_LINKACTIVE) + ev = IB_EVENT_PORT_ERR; + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags |= QIBL_LINKDOWN | QIBL_LINKV; + ppd->lflags &= ~(QIBL_LINKINIT | + QIBL_LINKACTIVE | QIBL_LINKARMED); + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + *ppd->statusp &= ~QIB_STATUS_IB_READY; + } + +skip_ibchange: + ppd->lastibcstat = ibcs; + if (ev) + signal_ib_event(ppd, ev); +} + +void qib_clear_symerror_on_linkup(struct timer_list *t) +{ + struct qib_pportdata *ppd = from_timer(ppd, t, symerr_clear_timer); + + if (ppd->lflags & QIBL_LINKACTIVE) + return; + + ppd->ibport_data.z_symbol_error_counter = + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_IBSYMBOLERR); +} + +/* + * Handle receive interrupts for user ctxts; this means a user + * process was waiting for a packet to arrive, and didn't want + * to poll. + */ +void qib_handle_urcv(struct qib_devdata *dd, u64 ctxtr) +{ + struct qib_ctxtdata *rcd; + unsigned long flags; + int i; + + spin_lock_irqsave(&dd->uctxt_lock, flags); + for (i = dd->first_user_ctxt; dd->rcd && i < dd->cfgctxts; i++) { + if (!(ctxtr & (1ULL << i))) + continue; + rcd = dd->rcd[i]; + if (!rcd || !rcd->cnt) + continue; + + if (test_and_clear_bit(QIB_CTXT_WAITING_RCV, &rcd->flag)) { + wake_up_interruptible(&rcd->wait); + dd->f_rcvctrl(rcd->ppd, QIB_RCVCTRL_INTRAVAIL_DIS, + rcd->ctxt); + } else if (test_and_clear_bit(QIB_CTXT_WAITING_URG, + &rcd->flag)) { + rcd->urgent++; + wake_up_interruptible(&rcd->wait); + } + } + spin_unlock_irqrestore(&dd->uctxt_lock, flags); +} + +void qib_bad_intrstatus(struct qib_devdata *dd) +{ + static int allbits; + + /* separate routine, for better optimization of qib_intr() */ + + /* + * We print the message and disable interrupts, in hope of + * having a better chance of debugging the problem. + */ + qib_dev_err(dd, + "Read of chip interrupt status failed disabling interrupts\n"); + if (allbits++) { + /* disable interrupt delivery, something is very wrong */ + if (allbits == 2) + dd->f_set_intr_state(dd, 0); + if (allbits == 3) { + qib_dev_err(dd, + "2nd bad interrupt status, unregistering interrupts\n"); + dd->flags |= QIB_BADINTR; + dd->flags &= ~QIB_INITTED; + dd->f_free_irq(dd); + } + } +} diff --git a/drivers/infiniband/hw/qib/qib_mad.c b/drivers/infiniband/hw/qib/qib_mad.c new file mode 100644 index 000000000..ef02f2bfd --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_mad.c @@ -0,0 +1,2449 @@ +/* + * Copyright (c) 2012 Intel Corporation. All rights reserved. + * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. + * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <rdma/ib_smi.h> + +#include "qib.h" +#include "qib_mad.h" + +static int reply(struct ib_smp *smp) +{ + /* + * The verbs framework will handle the directed/LID route + * packet changes. + */ + smp->method = IB_MGMT_METHOD_GET_RESP; + if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) + smp->status |= IB_SMP_DIRECTION; + return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; +} + +static int reply_failure(struct ib_smp *smp) +{ + /* + * The verbs framework will handle the directed/LID route + * packet changes. + */ + smp->method = IB_MGMT_METHOD_GET_RESP; + if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) + smp->status |= IB_SMP_DIRECTION; + return IB_MAD_RESULT_FAILURE | IB_MAD_RESULT_REPLY; +} + +static void qib_send_trap(struct qib_ibport *ibp, void *data, unsigned len) +{ + struct ib_mad_send_buf *send_buf; + struct ib_mad_agent *agent; + struct ib_smp *smp; + int ret; + unsigned long flags; + unsigned long timeout; + + agent = ibp->rvp.send_agent; + if (!agent) + return; + + /* o14-3.2.1 */ + if (!(ppd_from_ibp(ibp)->lflags & QIBL_LINKACTIVE)) + return; + + /* o14-2 */ + if (ibp->rvp.trap_timeout && + time_before(jiffies, ibp->rvp.trap_timeout)) + return; + + send_buf = ib_create_send_mad(agent, 0, 0, 0, IB_MGMT_MAD_HDR, + IB_MGMT_MAD_DATA, GFP_ATOMIC, + IB_MGMT_BASE_VERSION); + if (IS_ERR(send_buf)) + return; + + smp = send_buf->mad; + smp->base_version = IB_MGMT_BASE_VERSION; + smp->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; + smp->class_version = 1; + smp->method = IB_MGMT_METHOD_TRAP; + ibp->rvp.tid++; + smp->tid = cpu_to_be64(ibp->rvp.tid); + smp->attr_id = IB_SMP_ATTR_NOTICE; + /* o14-1: smp->mkey = 0; */ + memcpy(smp->data, data, len); + + spin_lock_irqsave(&ibp->rvp.lock, flags); + if (!ibp->rvp.sm_ah) { + if (ibp->rvp.sm_lid != be16_to_cpu(IB_LID_PERMISSIVE)) { + struct ib_ah *ah; + + ah = qib_create_qp0_ah(ibp, (u16)ibp->rvp.sm_lid); + if (IS_ERR(ah)) + ret = PTR_ERR(ah); + else { + send_buf->ah = ah; + ibp->rvp.sm_ah = ibah_to_rvtah(ah); + ret = 0; + } + } else + ret = -EINVAL; + } else { + send_buf->ah = &ibp->rvp.sm_ah->ibah; + ret = 0; + } + spin_unlock_irqrestore(&ibp->rvp.lock, flags); + + if (!ret) + ret = ib_post_send_mad(send_buf, NULL); + if (!ret) { + /* 4.096 usec. */ + timeout = (4096 * (1UL << ibp->rvp.subnet_timeout)) / 1000; + ibp->rvp.trap_timeout = jiffies + usecs_to_jiffies(timeout); + } else { + ib_free_send_mad(send_buf); + ibp->rvp.trap_timeout = 0; + } +} + +/* + * Send a bad P_Key trap (ch. 14.3.8). + */ +void qib_bad_pkey(struct qib_ibport *ibp, u32 key, u32 sl, + u32 qp1, u32 qp2, __be16 lid1, __be16 lid2) +{ + struct ib_mad_notice_attr data; + + ibp->rvp.n_pkt_drops++; + ibp->rvp.pkey_violations++; + + /* Send violation trap */ + data.generic_type = IB_NOTICE_TYPE_SECURITY; + data.prod_type_msb = 0; + data.prod_type_lsb = IB_NOTICE_PROD_CA; + data.trap_num = IB_NOTICE_TRAP_BAD_PKEY; + data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid); + data.toggle_count = 0; + memset(&data.details, 0, sizeof(data.details)); + data.details.ntc_257_258.lid1 = lid1; + data.details.ntc_257_258.lid2 = lid2; + data.details.ntc_257_258.key = cpu_to_be32(key); + data.details.ntc_257_258.sl_qp1 = cpu_to_be32((sl << 28) | qp1); + data.details.ntc_257_258.qp2 = cpu_to_be32(qp2); + + qib_send_trap(ibp, &data, sizeof(data)); +} + +/* + * Send a bad M_Key trap (ch. 14.3.9). + */ +static void qib_bad_mkey(struct qib_ibport *ibp, struct ib_smp *smp) +{ + struct ib_mad_notice_attr data; + + /* Send violation trap */ + data.generic_type = IB_NOTICE_TYPE_SECURITY; + data.prod_type_msb = 0; + data.prod_type_lsb = IB_NOTICE_PROD_CA; + data.trap_num = IB_NOTICE_TRAP_BAD_MKEY; + data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid); + data.toggle_count = 0; + memset(&data.details, 0, sizeof(data.details)); + data.details.ntc_256.lid = data.issuer_lid; + data.details.ntc_256.method = smp->method; + data.details.ntc_256.attr_id = smp->attr_id; + data.details.ntc_256.attr_mod = smp->attr_mod; + data.details.ntc_256.mkey = smp->mkey; + if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) { + u8 hop_cnt; + + data.details.ntc_256.dr_slid = smp->dr_slid; + data.details.ntc_256.dr_trunc_hop = IB_NOTICE_TRAP_DR_NOTICE; + hop_cnt = smp->hop_cnt; + if (hop_cnt > ARRAY_SIZE(data.details.ntc_256.dr_rtn_path)) { + data.details.ntc_256.dr_trunc_hop |= + IB_NOTICE_TRAP_DR_TRUNC; + hop_cnt = ARRAY_SIZE(data.details.ntc_256.dr_rtn_path); + } + data.details.ntc_256.dr_trunc_hop |= hop_cnt; + memcpy(data.details.ntc_256.dr_rtn_path, smp->return_path, + hop_cnt); + } + + qib_send_trap(ibp, &data, sizeof(data)); +} + +/* + * Send a Port Capability Mask Changed trap (ch. 14.3.11). + */ +void qib_cap_mask_chg(struct rvt_dev_info *rdi, u32 port_num) +{ + struct qib_ibdev *ibdev = container_of(rdi, struct qib_ibdev, rdi); + struct qib_devdata *dd = dd_from_dev(ibdev); + struct qib_ibport *ibp = &dd->pport[port_num - 1].ibport_data; + struct ib_mad_notice_attr data; + + data.generic_type = IB_NOTICE_TYPE_INFO; + data.prod_type_msb = 0; + data.prod_type_lsb = IB_NOTICE_PROD_CA; + data.trap_num = IB_NOTICE_TRAP_CAP_MASK_CHG; + data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid); + data.toggle_count = 0; + memset(&data.details, 0, sizeof(data.details)); + data.details.ntc_144.lid = data.issuer_lid; + data.details.ntc_144.new_cap_mask = + cpu_to_be32(ibp->rvp.port_cap_flags); + qib_send_trap(ibp, &data, sizeof(data)); +} + +/* + * Send a System Image GUID Changed trap (ch. 14.3.12). + */ +void qib_sys_guid_chg(struct qib_ibport *ibp) +{ + struct ib_mad_notice_attr data; + + data.generic_type = IB_NOTICE_TYPE_INFO; + data.prod_type_msb = 0; + data.prod_type_lsb = IB_NOTICE_PROD_CA; + data.trap_num = IB_NOTICE_TRAP_SYS_GUID_CHG; + data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid); + data.toggle_count = 0; + memset(&data.details, 0, sizeof(data.details)); + data.details.ntc_145.lid = data.issuer_lid; + data.details.ntc_145.new_sys_guid = ib_qib_sys_image_guid; + + qib_send_trap(ibp, &data, sizeof(data)); +} + +/* + * Send a Node Description Changed trap (ch. 14.3.13). + */ +void qib_node_desc_chg(struct qib_ibport *ibp) +{ + struct ib_mad_notice_attr data; + + data.generic_type = IB_NOTICE_TYPE_INFO; + data.prod_type_msb = 0; + data.prod_type_lsb = IB_NOTICE_PROD_CA; + data.trap_num = IB_NOTICE_TRAP_CAP_MASK_CHG; + data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid); + data.toggle_count = 0; + memset(&data.details, 0, sizeof(data.details)); + data.details.ntc_144.lid = data.issuer_lid; + data.details.ntc_144.local_changes = 1; + data.details.ntc_144.change_flags = IB_NOTICE_TRAP_NODE_DESC_CHG; + + qib_send_trap(ibp, &data, sizeof(data)); +} + +static int subn_get_nodedescription(struct ib_smp *smp, + struct ib_device *ibdev) +{ + if (smp->attr_mod) + smp->status |= IB_SMP_INVALID_FIELD; + + memcpy(smp->data, ibdev->node_desc, sizeof(smp->data)); + + return reply(smp); +} + +static int subn_get_nodeinfo(struct ib_smp *smp, struct ib_device *ibdev, + u8 port) +{ + struct ib_node_info *nip = (struct ib_node_info *)&smp->data; + struct qib_devdata *dd = dd_from_ibdev(ibdev); + u32 majrev, minrev; + unsigned pidx = port - 1; /* IB number port from 1, hdw from 0 */ + + /* GUID 0 is illegal */ + if (smp->attr_mod || pidx >= dd->num_pports || + dd->pport[pidx].guid == 0) + smp->status |= IB_SMP_INVALID_FIELD; + else + nip->port_guid = dd->pport[pidx].guid; + + nip->base_version = 1; + nip->class_version = 1; + nip->node_type = 1; /* channel adapter */ + nip->num_ports = ibdev->phys_port_cnt; + /* This is already in network order */ + nip->sys_guid = ib_qib_sys_image_guid; + nip->node_guid = dd->pport->guid; /* Use first-port GUID as node */ + nip->partition_cap = cpu_to_be16(qib_get_npkeys(dd)); + nip->device_id = cpu_to_be16(dd->deviceid); + majrev = dd->majrev; + minrev = dd->minrev; + nip->revision = cpu_to_be32((majrev << 16) | minrev); + nip->local_port_num = port; + nip->vendor_id[0] = QIB_SRC_OUI_1; + nip->vendor_id[1] = QIB_SRC_OUI_2; + nip->vendor_id[2] = QIB_SRC_OUI_3; + + return reply(smp); +} + +static int subn_get_guidinfo(struct ib_smp *smp, struct ib_device *ibdev, + u8 port) +{ + struct qib_devdata *dd = dd_from_ibdev(ibdev); + u32 startgx = 8 * be32_to_cpu(smp->attr_mod); + __be64 *p = (__be64 *) smp->data; + unsigned pidx = port - 1; /* IB number port from 1, hdw from 0 */ + + /* 32 blocks of 8 64-bit GUIDs per block */ + + memset(smp->data, 0, sizeof(smp->data)); + + if (startgx == 0 && pidx < dd->num_pports) { + struct qib_pportdata *ppd = dd->pport + pidx; + struct qib_ibport *ibp = &ppd->ibport_data; + __be64 g = ppd->guid; + unsigned i; + + /* GUID 0 is illegal */ + if (g == 0) + smp->status |= IB_SMP_INVALID_FIELD; + else { + /* The first is a copy of the read-only HW GUID. */ + p[0] = g; + for (i = 1; i < QIB_GUIDS_PER_PORT; i++) + p[i] = ibp->guids[i - 1]; + } + } else + smp->status |= IB_SMP_INVALID_FIELD; + + return reply(smp); +} + +static void set_link_width_enabled(struct qib_pportdata *ppd, u32 w) +{ + (void) ppd->dd->f_set_ib_cfg(ppd, QIB_IB_CFG_LWID_ENB, w); +} + +static void set_link_speed_enabled(struct qib_pportdata *ppd, u32 s) +{ + (void) ppd->dd->f_set_ib_cfg(ppd, QIB_IB_CFG_SPD_ENB, s); +} + +static int get_overrunthreshold(struct qib_pportdata *ppd) +{ + return ppd->dd->f_get_ib_cfg(ppd, QIB_IB_CFG_OVERRUN_THRESH); +} + +/** + * set_overrunthreshold - set the overrun threshold + * @ppd: the physical port data + * @n: the new threshold + * + * Note that this will only take effect when the link state changes. + */ +static int set_overrunthreshold(struct qib_pportdata *ppd, unsigned n) +{ + (void) ppd->dd->f_set_ib_cfg(ppd, QIB_IB_CFG_OVERRUN_THRESH, + (u32)n); + return 0; +} + +static int get_phyerrthreshold(struct qib_pportdata *ppd) +{ + return ppd->dd->f_get_ib_cfg(ppd, QIB_IB_CFG_PHYERR_THRESH); +} + +/** + * set_phyerrthreshold - set the physical error threshold + * @ppd: the physical port data + * @n: the new threshold + * + * Note that this will only take effect when the link state changes. + */ +static int set_phyerrthreshold(struct qib_pportdata *ppd, unsigned n) +{ + (void) ppd->dd->f_set_ib_cfg(ppd, QIB_IB_CFG_PHYERR_THRESH, + (u32)n); + return 0; +} + +/** + * get_linkdowndefaultstate - get the default linkdown state + * @ppd: the physical port data + * + * Returns zero if the default is POLL, 1 if the default is SLEEP. + */ +static int get_linkdowndefaultstate(struct qib_pportdata *ppd) +{ + return ppd->dd->f_get_ib_cfg(ppd, QIB_IB_CFG_LINKDEFAULT) == + IB_LINKINITCMD_SLEEP; +} + +static int check_mkey(struct qib_ibport *ibp, struct ib_smp *smp, int mad_flags) +{ + int valid_mkey = 0; + int ret = 0; + + /* Is the mkey in the process of expiring? */ + if (ibp->rvp.mkey_lease_timeout && + time_after_eq(jiffies, ibp->rvp.mkey_lease_timeout)) { + /* Clear timeout and mkey protection field. */ + ibp->rvp.mkey_lease_timeout = 0; + ibp->rvp.mkeyprot = 0; + } + + if ((mad_flags & IB_MAD_IGNORE_MKEY) || ibp->rvp.mkey == 0 || + ibp->rvp.mkey == smp->mkey) + valid_mkey = 1; + + /* Unset lease timeout on any valid Get/Set/TrapRepress */ + if (valid_mkey && ibp->rvp.mkey_lease_timeout && + (smp->method == IB_MGMT_METHOD_GET || + smp->method == IB_MGMT_METHOD_SET || + smp->method == IB_MGMT_METHOD_TRAP_REPRESS)) + ibp->rvp.mkey_lease_timeout = 0; + + if (!valid_mkey) { + switch (smp->method) { + case IB_MGMT_METHOD_GET: + /* Bad mkey not a violation below level 2 */ + if (ibp->rvp.mkeyprot < 2) + break; + fallthrough; + case IB_MGMT_METHOD_SET: + case IB_MGMT_METHOD_TRAP_REPRESS: + if (ibp->rvp.mkey_violations != 0xFFFF) + ++ibp->rvp.mkey_violations; + if (!ibp->rvp.mkey_lease_timeout && + ibp->rvp.mkey_lease_period) + ibp->rvp.mkey_lease_timeout = jiffies + + ibp->rvp.mkey_lease_period * HZ; + /* Generate a trap notice. */ + qib_bad_mkey(ibp, smp); + ret = 1; + } + } + + return ret; +} + +static int subn_get_portinfo(struct ib_smp *smp, struct ib_device *ibdev, + u8 port) +{ + struct qib_devdata *dd; + struct qib_pportdata *ppd; + struct qib_ibport *ibp; + struct ib_port_info *pip = (struct ib_port_info *)smp->data; + u8 mtu; + int ret; + u32 state; + u32 port_num = be32_to_cpu(smp->attr_mod); + + if (port_num == 0) + port_num = port; + else { + if (port_num > ibdev->phys_port_cnt) { + smp->status |= IB_SMP_INVALID_FIELD; + ret = reply(smp); + goto bail; + } + if (port_num != port) { + ibp = to_iport(ibdev, port_num); + ret = check_mkey(ibp, smp, 0); + if (ret) { + ret = IB_MAD_RESULT_FAILURE; + goto bail; + } + } + } + + dd = dd_from_ibdev(ibdev); + /* IB numbers ports from 1, hdw from 0 */ + ppd = dd->pport + (port_num - 1); + ibp = &ppd->ibport_data; + + /* Clear all fields. Only set the non-zero fields. */ + memset(smp->data, 0, sizeof(smp->data)); + + /* Only return the mkey if the protection field allows it. */ + if (!(smp->method == IB_MGMT_METHOD_GET && + ibp->rvp.mkey != smp->mkey && + ibp->rvp.mkeyprot == 1)) + pip->mkey = ibp->rvp.mkey; + pip->gid_prefix = ibp->rvp.gid_prefix; + pip->lid = cpu_to_be16(ppd->lid); + pip->sm_lid = cpu_to_be16((u16)ibp->rvp.sm_lid); + pip->cap_mask = cpu_to_be32(ibp->rvp.port_cap_flags); + /* pip->diag_code; */ + pip->mkey_lease_period = cpu_to_be16(ibp->rvp.mkey_lease_period); + pip->local_port_num = port; + pip->link_width_enabled = ppd->link_width_enabled; + pip->link_width_supported = ppd->link_width_supported; + pip->link_width_active = ppd->link_width_active; + state = dd->f_iblink_state(ppd->lastibcstat); + pip->linkspeed_portstate = ppd->link_speed_supported << 4 | state; + + pip->portphysstate_linkdown = + (dd->f_ibphys_portstate(ppd->lastibcstat) << 4) | + (get_linkdowndefaultstate(ppd) ? 1 : 2); + pip->mkeyprot_resv_lmc = (ibp->rvp.mkeyprot << 6) | ppd->lmc; + pip->linkspeedactive_enabled = (ppd->link_speed_active << 4) | + ppd->link_speed_enabled; + switch (ppd->ibmtu) { + default: /* something is wrong; fall through */ + case 4096: + mtu = IB_MTU_4096; + break; + case 2048: + mtu = IB_MTU_2048; + break; + case 1024: + mtu = IB_MTU_1024; + break; + case 512: + mtu = IB_MTU_512; + break; + case 256: + mtu = IB_MTU_256; + break; + } + pip->neighbormtu_mastersmsl = (mtu << 4) | ibp->rvp.sm_sl; + pip->vlcap_inittype = ppd->vls_supported << 4; /* InitType = 0 */ + pip->vl_high_limit = ibp->rvp.vl_high_limit; + pip->vl_arb_high_cap = + dd->f_get_ib_cfg(ppd, QIB_IB_CFG_VL_HIGH_CAP); + pip->vl_arb_low_cap = + dd->f_get_ib_cfg(ppd, QIB_IB_CFG_VL_LOW_CAP); + /* InitTypeReply = 0 */ + pip->inittypereply_mtucap = qib_ibmtu ? qib_ibmtu : IB_MTU_4096; + /* HCAs ignore VLStallCount and HOQLife */ + /* pip->vlstallcnt_hoqlife; */ + pip->operationalvl_pei_peo_fpi_fpo = + dd->f_get_ib_cfg(ppd, QIB_IB_CFG_OP_VLS) << 4; + pip->mkey_violations = cpu_to_be16(ibp->rvp.mkey_violations); + /* P_KeyViolations are counted by hardware. */ + pip->pkey_violations = cpu_to_be16(ibp->rvp.pkey_violations); + pip->qkey_violations = cpu_to_be16(ibp->rvp.qkey_violations); + /* Only the hardware GUID is supported for now */ + pip->guid_cap = QIB_GUIDS_PER_PORT; + pip->clientrereg_resv_subnetto = ibp->rvp.subnet_timeout; + /* 32.768 usec. response time (guessing) */ + pip->resv_resptimevalue = 3; + pip->localphyerrors_overrunerrors = + (get_phyerrthreshold(ppd) << 4) | + get_overrunthreshold(ppd); + /* pip->max_credit_hint; */ + if (ibp->rvp.port_cap_flags & IB_PORT_LINK_LATENCY_SUP) { + u32 v; + + v = dd->f_get_ib_cfg(ppd, QIB_IB_CFG_LINKLATENCY); + pip->link_roundtrip_latency[0] = v >> 16; + pip->link_roundtrip_latency[1] = v >> 8; + pip->link_roundtrip_latency[2] = v; + } + + ret = reply(smp); + +bail: + return ret; +} + +/** + * get_pkeys - return the PKEY table + * @dd: the qlogic_ib device + * @port: the IB port number + * @pkeys: the pkey table is placed here + */ +static int get_pkeys(struct qib_devdata *dd, u8 port, u16 *pkeys) +{ + struct qib_pportdata *ppd = dd->pport + port - 1; + /* + * always a kernel context, no locking needed. + * If we get here with ppd setup, no need to check + * that pd is valid. + */ + struct qib_ctxtdata *rcd = dd->rcd[ppd->hw_pidx]; + + memcpy(pkeys, rcd->pkeys, sizeof(rcd->pkeys)); + + return 0; +} + +static int subn_get_pkeytable(struct ib_smp *smp, struct ib_device *ibdev, + u8 port) +{ + u32 startpx = 32 * (be32_to_cpu(smp->attr_mod) & 0xffff); + u16 *p = (u16 *) smp->data; + __be16 *q = (__be16 *) smp->data; + + /* 64 blocks of 32 16-bit P_Key entries */ + + memset(smp->data, 0, sizeof(smp->data)); + if (startpx == 0) { + struct qib_devdata *dd = dd_from_ibdev(ibdev); + unsigned i, n = qib_get_npkeys(dd); + + get_pkeys(dd, port, p); + + for (i = 0; i < n; i++) + q[i] = cpu_to_be16(p[i]); + } else + smp->status |= IB_SMP_INVALID_FIELD; + + return reply(smp); +} + +static int subn_set_guidinfo(struct ib_smp *smp, struct ib_device *ibdev, + u8 port) +{ + struct qib_devdata *dd = dd_from_ibdev(ibdev); + u32 startgx = 8 * be32_to_cpu(smp->attr_mod); + __be64 *p = (__be64 *) smp->data; + unsigned pidx = port - 1; /* IB number port from 1, hdw from 0 */ + + /* 32 blocks of 8 64-bit GUIDs per block */ + + if (startgx == 0 && pidx < dd->num_pports) { + struct qib_pportdata *ppd = dd->pport + pidx; + struct qib_ibport *ibp = &ppd->ibport_data; + unsigned i; + + /* The first entry is read-only. */ + for (i = 1; i < QIB_GUIDS_PER_PORT; i++) + ibp->guids[i - 1] = p[i]; + } else + smp->status |= IB_SMP_INVALID_FIELD; + + /* The only GUID we support is the first read-only entry. */ + return subn_get_guidinfo(smp, ibdev, port); +} + +/** + * subn_set_portinfo - set port information + * @smp: the incoming SM packet + * @ibdev: the infiniband device + * @port: the port on the device + * + * Set Portinfo (see ch. 14.2.5.6). + */ +static int subn_set_portinfo(struct ib_smp *smp, struct ib_device *ibdev, + u8 port) +{ + struct ib_port_info *pip = (struct ib_port_info *)smp->data; + struct ib_event event; + struct qib_devdata *dd; + struct qib_pportdata *ppd; + struct qib_ibport *ibp; + u8 clientrereg = (pip->clientrereg_resv_subnetto & 0x80); + unsigned long flags; + u16 lid, smlid; + u8 lwe; + u8 lse; + u8 state; + u8 vls; + u8 msl; + u16 lstate; + int ret, ore, mtu; + u32 port_num = be32_to_cpu(smp->attr_mod); + + if (port_num == 0) + port_num = port; + else { + if (port_num > ibdev->phys_port_cnt) + goto err; + /* Port attributes can only be set on the receiving port */ + if (port_num != port) + goto get_only; + } + + dd = dd_from_ibdev(ibdev); + /* IB numbers ports from 1, hdw from 0 */ + ppd = dd->pport + (port_num - 1); + ibp = &ppd->ibport_data; + event.device = ibdev; + event.element.port_num = port; + + ibp->rvp.mkey = pip->mkey; + ibp->rvp.gid_prefix = pip->gid_prefix; + ibp->rvp.mkey_lease_period = be16_to_cpu(pip->mkey_lease_period); + + lid = be16_to_cpu(pip->lid); + /* Must be a valid unicast LID address. */ + if (lid == 0 || lid >= be16_to_cpu(IB_MULTICAST_LID_BASE)) + smp->status |= IB_SMP_INVALID_FIELD; + else if (ppd->lid != lid || ppd->lmc != (pip->mkeyprot_resv_lmc & 7)) { + if (ppd->lid != lid) + qib_set_uevent_bits(ppd, _QIB_EVENT_LID_CHANGE_BIT); + if (ppd->lmc != (pip->mkeyprot_resv_lmc & 7)) + qib_set_uevent_bits(ppd, _QIB_EVENT_LMC_CHANGE_BIT); + qib_set_lid(ppd, lid, pip->mkeyprot_resv_lmc & 7); + event.event = IB_EVENT_LID_CHANGE; + ib_dispatch_event(&event); + } + + smlid = be16_to_cpu(pip->sm_lid); + msl = pip->neighbormtu_mastersmsl & 0xF; + /* Must be a valid unicast LID address. */ + if (smlid == 0 || smlid >= be16_to_cpu(IB_MULTICAST_LID_BASE)) + smp->status |= IB_SMP_INVALID_FIELD; + else if (smlid != ibp->rvp.sm_lid || msl != ibp->rvp.sm_sl) { + spin_lock_irqsave(&ibp->rvp.lock, flags); + if (ibp->rvp.sm_ah) { + if (smlid != ibp->rvp.sm_lid) + rdma_ah_set_dlid(&ibp->rvp.sm_ah->attr, + smlid); + if (msl != ibp->rvp.sm_sl) + rdma_ah_set_sl(&ibp->rvp.sm_ah->attr, msl); + } + spin_unlock_irqrestore(&ibp->rvp.lock, flags); + if (smlid != ibp->rvp.sm_lid) + ibp->rvp.sm_lid = smlid; + if (msl != ibp->rvp.sm_sl) + ibp->rvp.sm_sl = msl; + event.event = IB_EVENT_SM_CHANGE; + ib_dispatch_event(&event); + } + + /* Allow 1x or 4x to be set (see 14.2.6.6). */ + lwe = pip->link_width_enabled; + if (lwe) { + if (lwe == 0xFF) + set_link_width_enabled(ppd, ppd->link_width_supported); + else if (lwe >= 16 || (lwe & ~ppd->link_width_supported)) + smp->status |= IB_SMP_INVALID_FIELD; + else if (lwe != ppd->link_width_enabled) + set_link_width_enabled(ppd, lwe); + } + + lse = pip->linkspeedactive_enabled & 0xF; + if (lse) { + /* + * The IB 1.2 spec. only allows link speed values + * 1, 3, 5, 7, 15. 1.2.1 extended to allow specific + * speeds. + */ + if (lse == 15) + set_link_speed_enabled(ppd, + ppd->link_speed_supported); + else if (lse >= 8 || (lse & ~ppd->link_speed_supported)) + smp->status |= IB_SMP_INVALID_FIELD; + else if (lse != ppd->link_speed_enabled) + set_link_speed_enabled(ppd, lse); + } + + /* Set link down default state. */ + switch (pip->portphysstate_linkdown & 0xF) { + case 0: /* NOP */ + break; + case 1: /* SLEEP */ + (void) dd->f_set_ib_cfg(ppd, QIB_IB_CFG_LINKDEFAULT, + IB_LINKINITCMD_SLEEP); + break; + case 2: /* POLL */ + (void) dd->f_set_ib_cfg(ppd, QIB_IB_CFG_LINKDEFAULT, + IB_LINKINITCMD_POLL); + break; + default: + smp->status |= IB_SMP_INVALID_FIELD; + } + + ibp->rvp.mkeyprot = pip->mkeyprot_resv_lmc >> 6; + ibp->rvp.vl_high_limit = pip->vl_high_limit; + (void) dd->f_set_ib_cfg(ppd, QIB_IB_CFG_VL_HIGH_LIMIT, + ibp->rvp.vl_high_limit); + + mtu = ib_mtu_enum_to_int((pip->neighbormtu_mastersmsl >> 4) & 0xF); + if (mtu == -1) + smp->status |= IB_SMP_INVALID_FIELD; + else + qib_set_mtu(ppd, mtu); + + /* Set operational VLs */ + vls = (pip->operationalvl_pei_peo_fpi_fpo >> 4) & 0xF; + if (vls) { + if (vls > ppd->vls_supported) + smp->status |= IB_SMP_INVALID_FIELD; + else + (void) dd->f_set_ib_cfg(ppd, QIB_IB_CFG_OP_VLS, vls); + } + + if (pip->mkey_violations == 0) + ibp->rvp.mkey_violations = 0; + + if (pip->pkey_violations == 0) + ibp->rvp.pkey_violations = 0; + + if (pip->qkey_violations == 0) + ibp->rvp.qkey_violations = 0; + + ore = pip->localphyerrors_overrunerrors; + if (set_phyerrthreshold(ppd, (ore >> 4) & 0xF)) + smp->status |= IB_SMP_INVALID_FIELD; + + if (set_overrunthreshold(ppd, (ore & 0xF))) + smp->status |= IB_SMP_INVALID_FIELD; + + ibp->rvp.subnet_timeout = pip->clientrereg_resv_subnetto & 0x1F; + + /* + * Do the port state change now that the other link parameters + * have been set. + * Changing the port physical state only makes sense if the link + * is down or is being set to down. + */ + state = pip->linkspeed_portstate & 0xF; + lstate = (pip->portphysstate_linkdown >> 4) & 0xF; + if (lstate && !(state == IB_PORT_DOWN || state == IB_PORT_NOP)) + smp->status |= IB_SMP_INVALID_FIELD; + + /* + * Only state changes of DOWN, ARM, and ACTIVE are valid + * and must be in the correct state to take effect (see 7.2.6). + */ + switch (state) { + case IB_PORT_NOP: + if (lstate == 0) + break; + fallthrough; + case IB_PORT_DOWN: + if (lstate == 0) + lstate = QIB_IB_LINKDOWN_ONLY; + else if (lstate == 1) + lstate = QIB_IB_LINKDOWN_SLEEP; + else if (lstate == 2) + lstate = QIB_IB_LINKDOWN; + else if (lstate == 3) + lstate = QIB_IB_LINKDOWN_DISABLE; + else { + smp->status |= IB_SMP_INVALID_FIELD; + break; + } + spin_lock_irqsave(&ppd->lflags_lock, flags); + ppd->lflags &= ~QIBL_LINKV; + spin_unlock_irqrestore(&ppd->lflags_lock, flags); + qib_set_linkstate(ppd, lstate); + /* + * Don't send a reply if the response would be sent + * through the disabled port. + */ + if (lstate == QIB_IB_LINKDOWN_DISABLE && smp->hop_cnt) { + ret = IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; + goto done; + } + qib_wait_linkstate(ppd, QIBL_LINKV, 10); + break; + case IB_PORT_ARMED: + qib_set_linkstate(ppd, QIB_IB_LINKARM); + break; + case IB_PORT_ACTIVE: + qib_set_linkstate(ppd, QIB_IB_LINKACTIVE); + break; + default: + smp->status |= IB_SMP_INVALID_FIELD; + } + + if (clientrereg) { + event.event = IB_EVENT_CLIENT_REREGISTER; + ib_dispatch_event(&event); + } + + /* restore re-reg bit per o14-12.2.1 */ + pip->clientrereg_resv_subnetto |= clientrereg; + + goto get_only; + +err: + smp->status |= IB_SMP_INVALID_FIELD; +get_only: + ret = subn_get_portinfo(smp, ibdev, port); +done: + return ret; +} + +/** + * rm_pkey - decrecment the reference count for the given PKEY + * @ppd: the qlogic_ib device + * @key: the PKEY index + * + * Return true if this was the last reference and the hardware table entry + * needs to be changed. + */ +static int rm_pkey(struct qib_pportdata *ppd, u16 key) +{ + int i; + int ret; + + for (i = 0; i < ARRAY_SIZE(ppd->pkeys); i++) { + if (ppd->pkeys[i] != key) + continue; + if (atomic_dec_and_test(&ppd->pkeyrefs[i])) { + ppd->pkeys[i] = 0; + ret = 1; + goto bail; + } + break; + } + + ret = 0; + +bail: + return ret; +} + +/** + * add_pkey - add the given PKEY to the hardware table + * @ppd: the qlogic_ib device + * @key: the PKEY + * + * Return an error code if unable to add the entry, zero if no change, + * or 1 if the hardware PKEY register needs to be updated. + */ +static int add_pkey(struct qib_pportdata *ppd, u16 key) +{ + int i; + u16 lkey = key & 0x7FFF; + int any = 0; + int ret; + + if (lkey == 0x7FFF) { + ret = 0; + goto bail; + } + + /* Look for an empty slot or a matching PKEY. */ + for (i = 0; i < ARRAY_SIZE(ppd->pkeys); i++) { + if (!ppd->pkeys[i]) { + any++; + continue; + } + /* If it matches exactly, try to increment the ref count */ + if (ppd->pkeys[i] == key) { + if (atomic_inc_return(&ppd->pkeyrefs[i]) > 1) { + ret = 0; + goto bail; + } + /* Lost the race. Look for an empty slot below. */ + atomic_dec(&ppd->pkeyrefs[i]); + any++; + } + /* + * It makes no sense to have both the limited and unlimited + * PKEY set at the same time since the unlimited one will + * disable the limited one. + */ + if ((ppd->pkeys[i] & 0x7FFF) == lkey) { + ret = -EEXIST; + goto bail; + } + } + if (!any) { + ret = -EBUSY; + goto bail; + } + for (i = 0; i < ARRAY_SIZE(ppd->pkeys); i++) { + if (!ppd->pkeys[i] && + atomic_inc_return(&ppd->pkeyrefs[i]) == 1) { + /* for qibstats, etc. */ + ppd->pkeys[i] = key; + ret = 1; + goto bail; + } + } + ret = -EBUSY; + +bail: + return ret; +} + +/** + * set_pkeys - set the PKEY table for ctxt 0 + * @dd: the qlogic_ib device + * @port: the IB port number + * @pkeys: the PKEY table + */ +static int set_pkeys(struct qib_devdata *dd, u8 port, u16 *pkeys) +{ + struct qib_pportdata *ppd; + struct qib_ctxtdata *rcd; + int i; + int changed = 0; + + /* + * IB port one/two always maps to context zero/one, + * always a kernel context, no locking needed + * If we get here with ppd setup, no need to check + * that rcd is valid. + */ + ppd = dd->pport + (port - 1); + rcd = dd->rcd[ppd->hw_pidx]; + + for (i = 0; i < ARRAY_SIZE(rcd->pkeys); i++) { + u16 key = pkeys[i]; + u16 okey = rcd->pkeys[i]; + + if (key == okey) + continue; + /* + * The value of this PKEY table entry is changing. + * Remove the old entry in the hardware's array of PKEYs. + */ + if (okey & 0x7FFF) + changed |= rm_pkey(ppd, okey); + if (key & 0x7FFF) { + int ret = add_pkey(ppd, key); + + if (ret < 0) + key = 0; + else + changed |= ret; + } + rcd->pkeys[i] = key; + } + if (changed) { + struct ib_event event; + + (void) dd->f_set_ib_cfg(ppd, QIB_IB_CFG_PKEYS, 0); + + event.event = IB_EVENT_PKEY_CHANGE; + event.device = &dd->verbs_dev.rdi.ibdev; + event.element.port_num = port; + ib_dispatch_event(&event); + } + return 0; +} + +static int subn_set_pkeytable(struct ib_smp *smp, struct ib_device *ibdev, + u8 port) +{ + u32 startpx = 32 * (be32_to_cpu(smp->attr_mod) & 0xffff); + __be16 *p = (__be16 *) smp->data; + u16 *q = (u16 *) smp->data; + struct qib_devdata *dd = dd_from_ibdev(ibdev); + unsigned i, n = qib_get_npkeys(dd); + + for (i = 0; i < n; i++) + q[i] = be16_to_cpu(p[i]); + + if (startpx != 0 || set_pkeys(dd, port, q) != 0) + smp->status |= IB_SMP_INVALID_FIELD; + + return subn_get_pkeytable(smp, ibdev, port); +} + +static int subn_get_sl_to_vl(struct ib_smp *smp, struct ib_device *ibdev, + u8 port) +{ + struct qib_ibport *ibp = to_iport(ibdev, port); + u8 *p = (u8 *) smp->data; + unsigned i; + + memset(smp->data, 0, sizeof(smp->data)); + + if (!(ibp->rvp.port_cap_flags & IB_PORT_SL_MAP_SUP)) + smp->status |= IB_SMP_UNSUP_METHOD; + else + for (i = 0; i < ARRAY_SIZE(ibp->sl_to_vl); i += 2) + *p++ = (ibp->sl_to_vl[i] << 4) | ibp->sl_to_vl[i + 1]; + + return reply(smp); +} + +static int subn_set_sl_to_vl(struct ib_smp *smp, struct ib_device *ibdev, + u8 port) +{ + struct qib_ibport *ibp = to_iport(ibdev, port); + u8 *p = (u8 *) smp->data; + unsigned i; + + if (!(ibp->rvp.port_cap_flags & IB_PORT_SL_MAP_SUP)) { + smp->status |= IB_SMP_UNSUP_METHOD; + return reply(smp); + } + + for (i = 0; i < ARRAY_SIZE(ibp->sl_to_vl); i += 2, p++) { + ibp->sl_to_vl[i] = *p >> 4; + ibp->sl_to_vl[i + 1] = *p & 0xF; + } + qib_set_uevent_bits(ppd_from_ibp(to_iport(ibdev, port)), + _QIB_EVENT_SL2VL_CHANGE_BIT); + + return subn_get_sl_to_vl(smp, ibdev, port); +} + +static int subn_get_vl_arb(struct ib_smp *smp, struct ib_device *ibdev, + u8 port) +{ + unsigned which = be32_to_cpu(smp->attr_mod) >> 16; + struct qib_pportdata *ppd = ppd_from_ibp(to_iport(ibdev, port)); + + memset(smp->data, 0, sizeof(smp->data)); + + if (ppd->vls_supported == IB_VL_VL0) + smp->status |= IB_SMP_UNSUP_METHOD; + else if (which == IB_VLARB_LOWPRI_0_31) + (void) ppd->dd->f_get_ib_table(ppd, QIB_IB_TBL_VL_LOW_ARB, + smp->data); + else if (which == IB_VLARB_HIGHPRI_0_31) + (void) ppd->dd->f_get_ib_table(ppd, QIB_IB_TBL_VL_HIGH_ARB, + smp->data); + else + smp->status |= IB_SMP_INVALID_FIELD; + + return reply(smp); +} + +static int subn_set_vl_arb(struct ib_smp *smp, struct ib_device *ibdev, + u8 port) +{ + unsigned which = be32_to_cpu(smp->attr_mod) >> 16; + struct qib_pportdata *ppd = ppd_from_ibp(to_iport(ibdev, port)); + + if (ppd->vls_supported == IB_VL_VL0) + smp->status |= IB_SMP_UNSUP_METHOD; + else if (which == IB_VLARB_LOWPRI_0_31) + (void) ppd->dd->f_set_ib_table(ppd, QIB_IB_TBL_VL_LOW_ARB, + smp->data); + else if (which == IB_VLARB_HIGHPRI_0_31) + (void) ppd->dd->f_set_ib_table(ppd, QIB_IB_TBL_VL_HIGH_ARB, + smp->data); + else + smp->status |= IB_SMP_INVALID_FIELD; + + return subn_get_vl_arb(smp, ibdev, port); +} + +static int subn_trap_repress(struct ib_smp *smp, struct ib_device *ibdev, + u8 port) +{ + /* + * For now, we only send the trap once so no need to process this. + * o13-6, o13-7, + * o14-3.a4 The SMA shall not send any message in response to a valid + * SubnTrapRepress() message. + */ + return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; +} + +static int pma_get_classportinfo(struct ib_pma_mad *pmp, + struct ib_device *ibdev) +{ + struct ib_class_port_info *p = + (struct ib_class_port_info *)pmp->data; + struct qib_devdata *dd = dd_from_ibdev(ibdev); + + memset(pmp->data, 0, sizeof(pmp->data)); + + if (pmp->mad_hdr.attr_mod != 0) + pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; + + /* Note that AllPortSelect is not valid */ + p->base_version = 1; + p->class_version = 1; + p->capability_mask = IB_PMA_CLASS_CAP_EXT_WIDTH; + /* + * Set the most significant bit of CM2 to indicate support for + * congestion statistics + */ + ib_set_cpi_capmask2(p, + dd->psxmitwait_supported << + (31 - IB_CLASS_PORT_INFO_RESP_TIME_FIELD_SIZE)); + /* + * Expected response time is 4.096 usec. * 2^18 == 1.073741824 sec. + */ + ib_set_cpi_resp_time(p, 18); + + return reply((struct ib_smp *) pmp); +} + +static int pma_get_portsamplescontrol(struct ib_pma_mad *pmp, + struct ib_device *ibdev, u8 port) +{ + struct ib_pma_portsamplescontrol *p = + (struct ib_pma_portsamplescontrol *)pmp->data; + struct qib_ibdev *dev = to_idev(ibdev); + struct qib_devdata *dd = dd_from_dev(dev); + struct qib_ibport *ibp = to_iport(ibdev, port); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + unsigned long flags; + u8 port_select = p->port_select; + + memset(pmp->data, 0, sizeof(pmp->data)); + + p->port_select = port_select; + if (pmp->mad_hdr.attr_mod != 0 || port_select != port) { + pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; + goto bail; + } + spin_lock_irqsave(&ibp->rvp.lock, flags); + p->tick = dd->f_get_ib_cfg(ppd, QIB_IB_CFG_PMA_TICKS); + p->sample_status = dd->f_portcntr(ppd, QIBPORTCNTR_PSSTAT); + p->counter_width = 4; /* 32 bit counters */ + p->counter_mask0_9 = COUNTER_MASK0_9; + p->sample_start = cpu_to_be32(ibp->rvp.pma_sample_start); + p->sample_interval = cpu_to_be32(ibp->rvp.pma_sample_interval); + p->tag = cpu_to_be16(ibp->rvp.pma_tag); + p->counter_select[0] = ibp->rvp.pma_counter_select[0]; + p->counter_select[1] = ibp->rvp.pma_counter_select[1]; + p->counter_select[2] = ibp->rvp.pma_counter_select[2]; + p->counter_select[3] = ibp->rvp.pma_counter_select[3]; + p->counter_select[4] = ibp->rvp.pma_counter_select[4]; + spin_unlock_irqrestore(&ibp->rvp.lock, flags); + +bail: + return reply((struct ib_smp *) pmp); +} + +static int pma_set_portsamplescontrol(struct ib_pma_mad *pmp, + struct ib_device *ibdev, u8 port) +{ + struct ib_pma_portsamplescontrol *p = + (struct ib_pma_portsamplescontrol *)pmp->data; + struct qib_ibdev *dev = to_idev(ibdev); + struct qib_devdata *dd = dd_from_dev(dev); + struct qib_ibport *ibp = to_iport(ibdev, port); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + unsigned long flags; + u8 status, xmit_flags; + int ret; + + if (pmp->mad_hdr.attr_mod != 0 || p->port_select != port) { + pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; + ret = reply((struct ib_smp *) pmp); + goto bail; + } + + spin_lock_irqsave(&ibp->rvp.lock, flags); + + /* Port Sampling code owns the PS* HW counters */ + xmit_flags = ppd->cong_stats.flags; + ppd->cong_stats.flags = IB_PMA_CONG_HW_CONTROL_SAMPLE; + status = dd->f_portcntr(ppd, QIBPORTCNTR_PSSTAT); + if (status == IB_PMA_SAMPLE_STATUS_DONE || + (status == IB_PMA_SAMPLE_STATUS_RUNNING && + xmit_flags == IB_PMA_CONG_HW_CONTROL_TIMER)) { + ibp->rvp.pma_sample_start = be32_to_cpu(p->sample_start); + ibp->rvp.pma_sample_interval = be32_to_cpu(p->sample_interval); + ibp->rvp.pma_tag = be16_to_cpu(p->tag); + ibp->rvp.pma_counter_select[0] = p->counter_select[0]; + ibp->rvp.pma_counter_select[1] = p->counter_select[1]; + ibp->rvp.pma_counter_select[2] = p->counter_select[2]; + ibp->rvp.pma_counter_select[3] = p->counter_select[3]; + ibp->rvp.pma_counter_select[4] = p->counter_select[4]; + dd->f_set_cntr_sample(ppd, ibp->rvp.pma_sample_interval, + ibp->rvp.pma_sample_start); + } + spin_unlock_irqrestore(&ibp->rvp.lock, flags); + + ret = pma_get_portsamplescontrol(pmp, ibdev, port); + +bail: + return ret; +} + +static u64 get_counter(struct qib_ibport *ibp, struct qib_pportdata *ppd, + __be16 sel) +{ + u64 ret; + + switch (sel) { + case IB_PMA_PORT_XMIT_DATA: + ret = ppd->dd->f_portcntr(ppd, QIBPORTCNTR_PSXMITDATA); + break; + case IB_PMA_PORT_RCV_DATA: + ret = ppd->dd->f_portcntr(ppd, QIBPORTCNTR_PSRCVDATA); + break; + case IB_PMA_PORT_XMIT_PKTS: + ret = ppd->dd->f_portcntr(ppd, QIBPORTCNTR_PSXMITPKTS); + break; + case IB_PMA_PORT_RCV_PKTS: + ret = ppd->dd->f_portcntr(ppd, QIBPORTCNTR_PSRCVPKTS); + break; + case IB_PMA_PORT_XMIT_WAIT: + ret = ppd->dd->f_portcntr(ppd, QIBPORTCNTR_PSXMITWAIT); + break; + default: + ret = 0; + } + + return ret; +} + +/* This function assumes that the xmit_wait lock is already held */ +static u64 xmit_wait_get_value_delta(struct qib_pportdata *ppd) +{ + u32 delta; + + delta = get_counter(&ppd->ibport_data, ppd, + IB_PMA_PORT_XMIT_WAIT); + return ppd->cong_stats.counter + delta; +} + +static void cache_hw_sample_counters(struct qib_pportdata *ppd) +{ + struct qib_ibport *ibp = &ppd->ibport_data; + + ppd->cong_stats.counter_cache.psxmitdata = + get_counter(ibp, ppd, IB_PMA_PORT_XMIT_DATA); + ppd->cong_stats.counter_cache.psrcvdata = + get_counter(ibp, ppd, IB_PMA_PORT_RCV_DATA); + ppd->cong_stats.counter_cache.psxmitpkts = + get_counter(ibp, ppd, IB_PMA_PORT_XMIT_PKTS); + ppd->cong_stats.counter_cache.psrcvpkts = + get_counter(ibp, ppd, IB_PMA_PORT_RCV_PKTS); + ppd->cong_stats.counter_cache.psxmitwait = + get_counter(ibp, ppd, IB_PMA_PORT_XMIT_WAIT); +} + +static u64 get_cache_hw_sample_counters(struct qib_pportdata *ppd, + __be16 sel) +{ + u64 ret; + + switch (sel) { + case IB_PMA_PORT_XMIT_DATA: + ret = ppd->cong_stats.counter_cache.psxmitdata; + break; + case IB_PMA_PORT_RCV_DATA: + ret = ppd->cong_stats.counter_cache.psrcvdata; + break; + case IB_PMA_PORT_XMIT_PKTS: + ret = ppd->cong_stats.counter_cache.psxmitpkts; + break; + case IB_PMA_PORT_RCV_PKTS: + ret = ppd->cong_stats.counter_cache.psrcvpkts; + break; + case IB_PMA_PORT_XMIT_WAIT: + ret = ppd->cong_stats.counter_cache.psxmitwait; + break; + default: + ret = 0; + } + + return ret; +} + +static int pma_get_portsamplesresult(struct ib_pma_mad *pmp, + struct ib_device *ibdev, u8 port) +{ + struct ib_pma_portsamplesresult *p = + (struct ib_pma_portsamplesresult *)pmp->data; + struct qib_ibdev *dev = to_idev(ibdev); + struct qib_devdata *dd = dd_from_dev(dev); + struct qib_ibport *ibp = to_iport(ibdev, port); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + unsigned long flags; + u8 status; + int i; + + memset(pmp->data, 0, sizeof(pmp->data)); + spin_lock_irqsave(&ibp->rvp.lock, flags); + p->tag = cpu_to_be16(ibp->rvp.pma_tag); + if (ppd->cong_stats.flags == IB_PMA_CONG_HW_CONTROL_TIMER) + p->sample_status = IB_PMA_SAMPLE_STATUS_DONE; + else { + status = dd->f_portcntr(ppd, QIBPORTCNTR_PSSTAT); + p->sample_status = cpu_to_be16(status); + if (status == IB_PMA_SAMPLE_STATUS_DONE) { + cache_hw_sample_counters(ppd); + ppd->cong_stats.counter = + xmit_wait_get_value_delta(ppd); + dd->f_set_cntr_sample(ppd, + QIB_CONG_TIMER_PSINTERVAL, 0); + ppd->cong_stats.flags = IB_PMA_CONG_HW_CONTROL_TIMER; + } + } + for (i = 0; i < ARRAY_SIZE(ibp->rvp.pma_counter_select); i++) + p->counter[i] = cpu_to_be32( + get_cache_hw_sample_counters( + ppd, ibp->rvp.pma_counter_select[i])); + spin_unlock_irqrestore(&ibp->rvp.lock, flags); + + return reply((struct ib_smp *) pmp); +} + +static int pma_get_portsamplesresult_ext(struct ib_pma_mad *pmp, + struct ib_device *ibdev, u8 port) +{ + struct ib_pma_portsamplesresult_ext *p = + (struct ib_pma_portsamplesresult_ext *)pmp->data; + struct qib_ibdev *dev = to_idev(ibdev); + struct qib_devdata *dd = dd_from_dev(dev); + struct qib_ibport *ibp = to_iport(ibdev, port); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + unsigned long flags; + u8 status; + int i; + + /* Port Sampling code owns the PS* HW counters */ + memset(pmp->data, 0, sizeof(pmp->data)); + spin_lock_irqsave(&ibp->rvp.lock, flags); + p->tag = cpu_to_be16(ibp->rvp.pma_tag); + if (ppd->cong_stats.flags == IB_PMA_CONG_HW_CONTROL_TIMER) + p->sample_status = IB_PMA_SAMPLE_STATUS_DONE; + else { + status = dd->f_portcntr(ppd, QIBPORTCNTR_PSSTAT); + p->sample_status = cpu_to_be16(status); + /* 64 bits */ + p->extended_width = cpu_to_be32(0x80000000); + if (status == IB_PMA_SAMPLE_STATUS_DONE) { + cache_hw_sample_counters(ppd); + ppd->cong_stats.counter = + xmit_wait_get_value_delta(ppd); + dd->f_set_cntr_sample(ppd, + QIB_CONG_TIMER_PSINTERVAL, 0); + ppd->cong_stats.flags = IB_PMA_CONG_HW_CONTROL_TIMER; + } + } + for (i = 0; i < ARRAY_SIZE(ibp->rvp.pma_counter_select); i++) + p->counter[i] = cpu_to_be64( + get_cache_hw_sample_counters( + ppd, ibp->rvp.pma_counter_select[i])); + spin_unlock_irqrestore(&ibp->rvp.lock, flags); + + return reply((struct ib_smp *) pmp); +} + +static int pma_get_portcounters(struct ib_pma_mad *pmp, + struct ib_device *ibdev, u8 port) +{ + struct ib_pma_portcounters *p = (struct ib_pma_portcounters *) + pmp->data; + struct qib_ibport *ibp = to_iport(ibdev, port); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + struct qib_verbs_counters cntrs; + u8 port_select = p->port_select; + + qib_get_counters(ppd, &cntrs); + + /* Adjust counters for any resets done. */ + cntrs.symbol_error_counter -= ibp->z_symbol_error_counter; + cntrs.link_error_recovery_counter -= + ibp->z_link_error_recovery_counter; + cntrs.link_downed_counter -= ibp->z_link_downed_counter; + cntrs.port_rcv_errors -= ibp->z_port_rcv_errors; + cntrs.port_rcv_remphys_errors -= ibp->z_port_rcv_remphys_errors; + cntrs.port_xmit_discards -= ibp->z_port_xmit_discards; + cntrs.port_xmit_data -= ibp->z_port_xmit_data; + cntrs.port_rcv_data -= ibp->z_port_rcv_data; + cntrs.port_xmit_packets -= ibp->z_port_xmit_packets; + cntrs.port_rcv_packets -= ibp->z_port_rcv_packets; + cntrs.local_link_integrity_errors -= + ibp->z_local_link_integrity_errors; + cntrs.excessive_buffer_overrun_errors -= + ibp->z_excessive_buffer_overrun_errors; + cntrs.vl15_dropped -= ibp->z_vl15_dropped; + cntrs.vl15_dropped += ibp->rvp.n_vl15_dropped; + + memset(pmp->data, 0, sizeof(pmp->data)); + + p->port_select = port_select; + if (pmp->mad_hdr.attr_mod != 0 || port_select != port) + pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; + + if (cntrs.symbol_error_counter > 0xFFFFUL) + p->symbol_error_counter = cpu_to_be16(0xFFFF); + else + p->symbol_error_counter = + cpu_to_be16((u16)cntrs.symbol_error_counter); + if (cntrs.link_error_recovery_counter > 0xFFUL) + p->link_error_recovery_counter = 0xFF; + else + p->link_error_recovery_counter = + (u8)cntrs.link_error_recovery_counter; + if (cntrs.link_downed_counter > 0xFFUL) + p->link_downed_counter = 0xFF; + else + p->link_downed_counter = (u8)cntrs.link_downed_counter; + if (cntrs.port_rcv_errors > 0xFFFFUL) + p->port_rcv_errors = cpu_to_be16(0xFFFF); + else + p->port_rcv_errors = + cpu_to_be16((u16) cntrs.port_rcv_errors); + if (cntrs.port_rcv_remphys_errors > 0xFFFFUL) + p->port_rcv_remphys_errors = cpu_to_be16(0xFFFF); + else + p->port_rcv_remphys_errors = + cpu_to_be16((u16)cntrs.port_rcv_remphys_errors); + if (cntrs.port_xmit_discards > 0xFFFFUL) + p->port_xmit_discards = cpu_to_be16(0xFFFF); + else + p->port_xmit_discards = + cpu_to_be16((u16)cntrs.port_xmit_discards); + if (cntrs.local_link_integrity_errors > 0xFUL) + cntrs.local_link_integrity_errors = 0xFUL; + if (cntrs.excessive_buffer_overrun_errors > 0xFUL) + cntrs.excessive_buffer_overrun_errors = 0xFUL; + p->link_overrun_errors = (cntrs.local_link_integrity_errors << 4) | + cntrs.excessive_buffer_overrun_errors; + if (cntrs.vl15_dropped > 0xFFFFUL) + p->vl15_dropped = cpu_to_be16(0xFFFF); + else + p->vl15_dropped = cpu_to_be16((u16)cntrs.vl15_dropped); + if (cntrs.port_xmit_data > 0xFFFFFFFFUL) + p->port_xmit_data = cpu_to_be32(0xFFFFFFFF); + else + p->port_xmit_data = cpu_to_be32((u32)cntrs.port_xmit_data); + if (cntrs.port_rcv_data > 0xFFFFFFFFUL) + p->port_rcv_data = cpu_to_be32(0xFFFFFFFF); + else + p->port_rcv_data = cpu_to_be32((u32)cntrs.port_rcv_data); + if (cntrs.port_xmit_packets > 0xFFFFFFFFUL) + p->port_xmit_packets = cpu_to_be32(0xFFFFFFFF); + else + p->port_xmit_packets = + cpu_to_be32((u32)cntrs.port_xmit_packets); + if (cntrs.port_rcv_packets > 0xFFFFFFFFUL) + p->port_rcv_packets = cpu_to_be32(0xFFFFFFFF); + else + p->port_rcv_packets = + cpu_to_be32((u32) cntrs.port_rcv_packets); + + return reply((struct ib_smp *) pmp); +} + +static int pma_get_portcounters_cong(struct ib_pma_mad *pmp, + struct ib_device *ibdev, u8 port) +{ + /* Congestion PMA packets start at offset 24 not 64 */ + struct ib_pma_portcounters_cong *p = + (struct ib_pma_portcounters_cong *)pmp->reserved; + struct qib_verbs_counters cntrs; + struct qib_ibport *ibp = to_iport(ibdev, port); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + struct qib_devdata *dd = dd_from_ppd(ppd); + u32 port_select = be32_to_cpu(pmp->mad_hdr.attr_mod) & 0xFF; + u64 xmit_wait_counter; + unsigned long flags; + + /* + * This check is performed only in the GET method because the + * SET method ends up calling this anyway. + */ + if (!dd->psxmitwait_supported) + pmp->mad_hdr.status |= IB_SMP_UNSUP_METH_ATTR; + if (port_select != port) + pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; + + qib_get_counters(ppd, &cntrs); + spin_lock_irqsave(&ppd->ibport_data.rvp.lock, flags); + xmit_wait_counter = xmit_wait_get_value_delta(ppd); + spin_unlock_irqrestore(&ppd->ibport_data.rvp.lock, flags); + + /* Adjust counters for any resets done. */ + cntrs.symbol_error_counter -= ibp->z_symbol_error_counter; + cntrs.link_error_recovery_counter -= + ibp->z_link_error_recovery_counter; + cntrs.link_downed_counter -= ibp->z_link_downed_counter; + cntrs.port_rcv_errors -= ibp->z_port_rcv_errors; + cntrs.port_rcv_remphys_errors -= + ibp->z_port_rcv_remphys_errors; + cntrs.port_xmit_discards -= ibp->z_port_xmit_discards; + cntrs.local_link_integrity_errors -= + ibp->z_local_link_integrity_errors; + cntrs.excessive_buffer_overrun_errors -= + ibp->z_excessive_buffer_overrun_errors; + cntrs.vl15_dropped -= ibp->z_vl15_dropped; + cntrs.vl15_dropped += ibp->rvp.n_vl15_dropped; + cntrs.port_xmit_data -= ibp->z_port_xmit_data; + cntrs.port_rcv_data -= ibp->z_port_rcv_data; + cntrs.port_xmit_packets -= ibp->z_port_xmit_packets; + cntrs.port_rcv_packets -= ibp->z_port_rcv_packets; + + memset(pmp->reserved, 0, sizeof(pmp->reserved)); + memset(pmp->data, 0, sizeof(pmp->data)); + + /* + * Set top 3 bits to indicate interval in picoseconds in + * remaining bits. + */ + p->port_check_rate = + cpu_to_be16((QIB_XMIT_RATE_PICO << 13) | + (dd->psxmitwait_check_rate & + ~(QIB_XMIT_RATE_PICO << 13))); + p->port_adr_events = cpu_to_be64(0); + p->port_xmit_wait = cpu_to_be64(xmit_wait_counter); + p->port_xmit_data = cpu_to_be64(cntrs.port_xmit_data); + p->port_rcv_data = cpu_to_be64(cntrs.port_rcv_data); + p->port_xmit_packets = + cpu_to_be64(cntrs.port_xmit_packets); + p->port_rcv_packets = + cpu_to_be64(cntrs.port_rcv_packets); + if (cntrs.symbol_error_counter > 0xFFFFUL) + p->symbol_error_counter = cpu_to_be16(0xFFFF); + else + p->symbol_error_counter = + cpu_to_be16( + (u16)cntrs.symbol_error_counter); + if (cntrs.link_error_recovery_counter > 0xFFUL) + p->link_error_recovery_counter = 0xFF; + else + p->link_error_recovery_counter = + (u8)cntrs.link_error_recovery_counter; + if (cntrs.link_downed_counter > 0xFFUL) + p->link_downed_counter = 0xFF; + else + p->link_downed_counter = + (u8)cntrs.link_downed_counter; + if (cntrs.port_rcv_errors > 0xFFFFUL) + p->port_rcv_errors = cpu_to_be16(0xFFFF); + else + p->port_rcv_errors = + cpu_to_be16((u16) cntrs.port_rcv_errors); + if (cntrs.port_rcv_remphys_errors > 0xFFFFUL) + p->port_rcv_remphys_errors = cpu_to_be16(0xFFFF); + else + p->port_rcv_remphys_errors = + cpu_to_be16( + (u16)cntrs.port_rcv_remphys_errors); + if (cntrs.port_xmit_discards > 0xFFFFUL) + p->port_xmit_discards = cpu_to_be16(0xFFFF); + else + p->port_xmit_discards = + cpu_to_be16((u16)cntrs.port_xmit_discards); + if (cntrs.local_link_integrity_errors > 0xFUL) + cntrs.local_link_integrity_errors = 0xFUL; + if (cntrs.excessive_buffer_overrun_errors > 0xFUL) + cntrs.excessive_buffer_overrun_errors = 0xFUL; + p->link_overrun_errors = (cntrs.local_link_integrity_errors << 4) | + cntrs.excessive_buffer_overrun_errors; + if (cntrs.vl15_dropped > 0xFFFFUL) + p->vl15_dropped = cpu_to_be16(0xFFFF); + else + p->vl15_dropped = cpu_to_be16((u16)cntrs.vl15_dropped); + + return reply((struct ib_smp *)pmp); +} + +static void qib_snapshot_pmacounters( + struct qib_ibport *ibp, + struct qib_pma_counters *pmacounters) +{ + struct qib_pma_counters *p; + int cpu; + + memset(pmacounters, 0, sizeof(*pmacounters)); + for_each_possible_cpu(cpu) { + p = per_cpu_ptr(ibp->pmastats, cpu); + pmacounters->n_unicast_xmit += p->n_unicast_xmit; + pmacounters->n_unicast_rcv += p->n_unicast_rcv; + pmacounters->n_multicast_xmit += p->n_multicast_xmit; + pmacounters->n_multicast_rcv += p->n_multicast_rcv; + } +} + +static int pma_get_portcounters_ext(struct ib_pma_mad *pmp, + struct ib_device *ibdev, u8 port) +{ + struct ib_pma_portcounters_ext *p = + (struct ib_pma_portcounters_ext *)pmp->data; + struct qib_ibport *ibp = to_iport(ibdev, port); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + u64 swords, rwords, spkts, rpkts, xwait; + struct qib_pma_counters pma; + u8 port_select = p->port_select; + + memset(pmp->data, 0, sizeof(pmp->data)); + + p->port_select = port_select; + if (pmp->mad_hdr.attr_mod != 0 || port_select != port) { + pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; + goto bail; + } + + qib_snapshot_counters(ppd, &swords, &rwords, &spkts, &rpkts, &xwait); + + /* Adjust counters for any resets done. */ + swords -= ibp->z_port_xmit_data; + rwords -= ibp->z_port_rcv_data; + spkts -= ibp->z_port_xmit_packets; + rpkts -= ibp->z_port_rcv_packets; + + p->port_xmit_data = cpu_to_be64(swords); + p->port_rcv_data = cpu_to_be64(rwords); + p->port_xmit_packets = cpu_to_be64(spkts); + p->port_rcv_packets = cpu_to_be64(rpkts); + + qib_snapshot_pmacounters(ibp, &pma); + + p->port_unicast_xmit_packets = cpu_to_be64(pma.n_unicast_xmit + - ibp->z_unicast_xmit); + p->port_unicast_rcv_packets = cpu_to_be64(pma.n_unicast_rcv + - ibp->z_unicast_rcv); + p->port_multicast_xmit_packets = cpu_to_be64(pma.n_multicast_xmit + - ibp->z_multicast_xmit); + p->port_multicast_rcv_packets = cpu_to_be64(pma.n_multicast_rcv + - ibp->z_multicast_rcv); + +bail: + return reply((struct ib_smp *) pmp); +} + +static int pma_set_portcounters(struct ib_pma_mad *pmp, + struct ib_device *ibdev, u8 port) +{ + struct ib_pma_portcounters *p = (struct ib_pma_portcounters *) + pmp->data; + struct qib_ibport *ibp = to_iport(ibdev, port); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + struct qib_verbs_counters cntrs; + + /* + * Since the HW doesn't support clearing counters, we save the + * current count and subtract it from future responses. + */ + qib_get_counters(ppd, &cntrs); + + if (p->counter_select & IB_PMA_SEL_SYMBOL_ERROR) + ibp->z_symbol_error_counter = cntrs.symbol_error_counter; + + if (p->counter_select & IB_PMA_SEL_LINK_ERROR_RECOVERY) + ibp->z_link_error_recovery_counter = + cntrs.link_error_recovery_counter; + + if (p->counter_select & IB_PMA_SEL_LINK_DOWNED) + ibp->z_link_downed_counter = cntrs.link_downed_counter; + + if (p->counter_select & IB_PMA_SEL_PORT_RCV_ERRORS) + ibp->z_port_rcv_errors = cntrs.port_rcv_errors; + + if (p->counter_select & IB_PMA_SEL_PORT_RCV_REMPHYS_ERRORS) + ibp->z_port_rcv_remphys_errors = + cntrs.port_rcv_remphys_errors; + + if (p->counter_select & IB_PMA_SEL_PORT_XMIT_DISCARDS) + ibp->z_port_xmit_discards = cntrs.port_xmit_discards; + + if (p->counter_select & IB_PMA_SEL_LOCAL_LINK_INTEGRITY_ERRORS) + ibp->z_local_link_integrity_errors = + cntrs.local_link_integrity_errors; + + if (p->counter_select & IB_PMA_SEL_EXCESSIVE_BUFFER_OVERRUNS) + ibp->z_excessive_buffer_overrun_errors = + cntrs.excessive_buffer_overrun_errors; + + if (p->counter_select & IB_PMA_SEL_PORT_VL15_DROPPED) { + ibp->rvp.n_vl15_dropped = 0; + ibp->z_vl15_dropped = cntrs.vl15_dropped; + } + + if (p->counter_select & IB_PMA_SEL_PORT_XMIT_DATA) + ibp->z_port_xmit_data = cntrs.port_xmit_data; + + if (p->counter_select & IB_PMA_SEL_PORT_RCV_DATA) + ibp->z_port_rcv_data = cntrs.port_rcv_data; + + if (p->counter_select & IB_PMA_SEL_PORT_XMIT_PACKETS) + ibp->z_port_xmit_packets = cntrs.port_xmit_packets; + + if (p->counter_select & IB_PMA_SEL_PORT_RCV_PACKETS) + ibp->z_port_rcv_packets = cntrs.port_rcv_packets; + + return pma_get_portcounters(pmp, ibdev, port); +} + +static int pma_set_portcounters_cong(struct ib_pma_mad *pmp, + struct ib_device *ibdev, u8 port) +{ + struct qib_ibport *ibp = to_iport(ibdev, port); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + struct qib_devdata *dd = dd_from_ppd(ppd); + struct qib_verbs_counters cntrs; + u32 counter_select = (be32_to_cpu(pmp->mad_hdr.attr_mod) >> 24) & 0xFF; + int ret = 0; + unsigned long flags; + + qib_get_counters(ppd, &cntrs); + /* Get counter values before we save them */ + ret = pma_get_portcounters_cong(pmp, ibdev, port); + + if (counter_select & IB_PMA_SEL_CONG_XMIT) { + spin_lock_irqsave(&ppd->ibport_data.rvp.lock, flags); + ppd->cong_stats.counter = 0; + dd->f_set_cntr_sample(ppd, QIB_CONG_TIMER_PSINTERVAL, + 0x0); + spin_unlock_irqrestore(&ppd->ibport_data.rvp.lock, flags); + } + if (counter_select & IB_PMA_SEL_CONG_PORT_DATA) { + ibp->z_port_xmit_data = cntrs.port_xmit_data; + ibp->z_port_rcv_data = cntrs.port_rcv_data; + ibp->z_port_xmit_packets = cntrs.port_xmit_packets; + ibp->z_port_rcv_packets = cntrs.port_rcv_packets; + } + if (counter_select & IB_PMA_SEL_CONG_ALL) { + ibp->z_symbol_error_counter = + cntrs.symbol_error_counter; + ibp->z_link_error_recovery_counter = + cntrs.link_error_recovery_counter; + ibp->z_link_downed_counter = + cntrs.link_downed_counter; + ibp->z_port_rcv_errors = cntrs.port_rcv_errors; + ibp->z_port_rcv_remphys_errors = + cntrs.port_rcv_remphys_errors; + ibp->z_port_xmit_discards = + cntrs.port_xmit_discards; + ibp->z_local_link_integrity_errors = + cntrs.local_link_integrity_errors; + ibp->z_excessive_buffer_overrun_errors = + cntrs.excessive_buffer_overrun_errors; + ibp->rvp.n_vl15_dropped = 0; + ibp->z_vl15_dropped = cntrs.vl15_dropped; + } + + return ret; +} + +static int pma_set_portcounters_ext(struct ib_pma_mad *pmp, + struct ib_device *ibdev, u8 port) +{ + struct ib_pma_portcounters *p = (struct ib_pma_portcounters *) + pmp->data; + struct qib_ibport *ibp = to_iport(ibdev, port); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + u64 swords, rwords, spkts, rpkts, xwait; + struct qib_pma_counters pma; + + qib_snapshot_counters(ppd, &swords, &rwords, &spkts, &rpkts, &xwait); + + if (p->counter_select & IB_PMA_SELX_PORT_XMIT_DATA) + ibp->z_port_xmit_data = swords; + + if (p->counter_select & IB_PMA_SELX_PORT_RCV_DATA) + ibp->z_port_rcv_data = rwords; + + if (p->counter_select & IB_PMA_SELX_PORT_XMIT_PACKETS) + ibp->z_port_xmit_packets = spkts; + + if (p->counter_select & IB_PMA_SELX_PORT_RCV_PACKETS) + ibp->z_port_rcv_packets = rpkts; + + qib_snapshot_pmacounters(ibp, &pma); + + if (p->counter_select & IB_PMA_SELX_PORT_UNI_XMIT_PACKETS) + ibp->z_unicast_xmit = pma.n_unicast_xmit; + + if (p->counter_select & IB_PMA_SELX_PORT_UNI_RCV_PACKETS) + ibp->z_unicast_rcv = pma.n_unicast_rcv; + + if (p->counter_select & IB_PMA_SELX_PORT_MULTI_XMIT_PACKETS) + ibp->z_multicast_xmit = pma.n_multicast_xmit; + + if (p->counter_select & IB_PMA_SELX_PORT_MULTI_RCV_PACKETS) + ibp->z_multicast_rcv = pma.n_multicast_rcv; + + return pma_get_portcounters_ext(pmp, ibdev, port); +} + +static int process_subn(struct ib_device *ibdev, int mad_flags, + u8 port, const struct ib_mad *in_mad, + struct ib_mad *out_mad) +{ + struct ib_smp *smp = (struct ib_smp *)out_mad; + struct qib_ibport *ibp = to_iport(ibdev, port); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + int ret; + + *out_mad = *in_mad; + if (smp->class_version != 1) { + smp->status |= IB_SMP_UNSUP_VERSION; + ret = reply(smp); + goto bail; + } + + ret = check_mkey(ibp, smp, mad_flags); + if (ret) { + u32 port_num = be32_to_cpu(smp->attr_mod); + + /* + * If this is a get/set portinfo, we already check the + * M_Key if the MAD is for another port and the M_Key + * is OK on the receiving port. This check is needed + * to increment the error counters when the M_Key + * fails to match on *both* ports. + */ + if (in_mad->mad_hdr.attr_id == IB_SMP_ATTR_PORT_INFO && + (smp->method == IB_MGMT_METHOD_GET || + smp->method == IB_MGMT_METHOD_SET) && + port_num && port_num <= ibdev->phys_port_cnt && + port != port_num) + (void) check_mkey(to_iport(ibdev, port_num), smp, 0); + ret = IB_MAD_RESULT_FAILURE; + goto bail; + } + + switch (smp->method) { + case IB_MGMT_METHOD_GET: + switch (smp->attr_id) { + case IB_SMP_ATTR_NODE_DESC: + ret = subn_get_nodedescription(smp, ibdev); + goto bail; + case IB_SMP_ATTR_NODE_INFO: + ret = subn_get_nodeinfo(smp, ibdev, port); + goto bail; + case IB_SMP_ATTR_GUID_INFO: + ret = subn_get_guidinfo(smp, ibdev, port); + goto bail; + case IB_SMP_ATTR_PORT_INFO: + ret = subn_get_portinfo(smp, ibdev, port); + goto bail; + case IB_SMP_ATTR_PKEY_TABLE: + ret = subn_get_pkeytable(smp, ibdev, port); + goto bail; + case IB_SMP_ATTR_SL_TO_VL_TABLE: + ret = subn_get_sl_to_vl(smp, ibdev, port); + goto bail; + case IB_SMP_ATTR_VL_ARB_TABLE: + ret = subn_get_vl_arb(smp, ibdev, port); + goto bail; + case IB_SMP_ATTR_SM_INFO: + if (ibp->rvp.port_cap_flags & IB_PORT_SM_DISABLED) { + ret = IB_MAD_RESULT_SUCCESS | + IB_MAD_RESULT_CONSUMED; + goto bail; + } + if (ibp->rvp.port_cap_flags & IB_PORT_SM) { + ret = IB_MAD_RESULT_SUCCESS; + goto bail; + } + fallthrough; + default: + smp->status |= IB_SMP_UNSUP_METH_ATTR; + ret = reply(smp); + goto bail; + } + + case IB_MGMT_METHOD_SET: + switch (smp->attr_id) { + case IB_SMP_ATTR_GUID_INFO: + ret = subn_set_guidinfo(smp, ibdev, port); + goto bail; + case IB_SMP_ATTR_PORT_INFO: + ret = subn_set_portinfo(smp, ibdev, port); + goto bail; + case IB_SMP_ATTR_PKEY_TABLE: + ret = subn_set_pkeytable(smp, ibdev, port); + goto bail; + case IB_SMP_ATTR_SL_TO_VL_TABLE: + ret = subn_set_sl_to_vl(smp, ibdev, port); + goto bail; + case IB_SMP_ATTR_VL_ARB_TABLE: + ret = subn_set_vl_arb(smp, ibdev, port); + goto bail; + case IB_SMP_ATTR_SM_INFO: + if (ibp->rvp.port_cap_flags & IB_PORT_SM_DISABLED) { + ret = IB_MAD_RESULT_SUCCESS | + IB_MAD_RESULT_CONSUMED; + goto bail; + } + if (ibp->rvp.port_cap_flags & IB_PORT_SM) { + ret = IB_MAD_RESULT_SUCCESS; + goto bail; + } + fallthrough; + default: + smp->status |= IB_SMP_UNSUP_METH_ATTR; + ret = reply(smp); + goto bail; + } + + case IB_MGMT_METHOD_TRAP_REPRESS: + if (smp->attr_id == IB_SMP_ATTR_NOTICE) + ret = subn_trap_repress(smp, ibdev, port); + else { + smp->status |= IB_SMP_UNSUP_METH_ATTR; + ret = reply(smp); + } + goto bail; + + case IB_MGMT_METHOD_TRAP: + case IB_MGMT_METHOD_REPORT: + case IB_MGMT_METHOD_REPORT_RESP: + case IB_MGMT_METHOD_GET_RESP: + /* + * The ib_mad module will call us to process responses + * before checking for other consumers. + * Just tell the caller to process it normally. + */ + ret = IB_MAD_RESULT_SUCCESS; + goto bail; + + case IB_MGMT_METHOD_SEND: + if (ib_get_smp_direction(smp) && + smp->attr_id == QIB_VENDOR_IPG) { + ppd->dd->f_set_ib_cfg(ppd, QIB_IB_CFG_PORT, + smp->data[0]); + ret = IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; + } else + ret = IB_MAD_RESULT_SUCCESS; + goto bail; + + default: + smp->status |= IB_SMP_UNSUP_METHOD; + ret = reply(smp); + } + +bail: + return ret; +} + +static int process_perf(struct ib_device *ibdev, u8 port, + const struct ib_mad *in_mad, + struct ib_mad *out_mad) +{ + struct ib_pma_mad *pmp = (struct ib_pma_mad *)out_mad; + int ret; + + *out_mad = *in_mad; + if (pmp->mad_hdr.class_version != 1) { + pmp->mad_hdr.status |= IB_SMP_UNSUP_VERSION; + ret = reply((struct ib_smp *) pmp); + goto bail; + } + + switch (pmp->mad_hdr.method) { + case IB_MGMT_METHOD_GET: + switch (pmp->mad_hdr.attr_id) { + case IB_PMA_CLASS_PORT_INFO: + ret = pma_get_classportinfo(pmp, ibdev); + goto bail; + case IB_PMA_PORT_SAMPLES_CONTROL: + ret = pma_get_portsamplescontrol(pmp, ibdev, port); + goto bail; + case IB_PMA_PORT_SAMPLES_RESULT: + ret = pma_get_portsamplesresult(pmp, ibdev, port); + goto bail; + case IB_PMA_PORT_SAMPLES_RESULT_EXT: + ret = pma_get_portsamplesresult_ext(pmp, ibdev, port); + goto bail; + case IB_PMA_PORT_COUNTERS: + ret = pma_get_portcounters(pmp, ibdev, port); + goto bail; + case IB_PMA_PORT_COUNTERS_EXT: + ret = pma_get_portcounters_ext(pmp, ibdev, port); + goto bail; + case IB_PMA_PORT_COUNTERS_CONG: + ret = pma_get_portcounters_cong(pmp, ibdev, port); + goto bail; + default: + pmp->mad_hdr.status |= IB_SMP_UNSUP_METH_ATTR; + ret = reply((struct ib_smp *) pmp); + goto bail; + } + + case IB_MGMT_METHOD_SET: + switch (pmp->mad_hdr.attr_id) { + case IB_PMA_PORT_SAMPLES_CONTROL: + ret = pma_set_portsamplescontrol(pmp, ibdev, port); + goto bail; + case IB_PMA_PORT_COUNTERS: + ret = pma_set_portcounters(pmp, ibdev, port); + goto bail; + case IB_PMA_PORT_COUNTERS_EXT: + ret = pma_set_portcounters_ext(pmp, ibdev, port); + goto bail; + case IB_PMA_PORT_COUNTERS_CONG: + ret = pma_set_portcounters_cong(pmp, ibdev, port); + goto bail; + default: + pmp->mad_hdr.status |= IB_SMP_UNSUP_METH_ATTR; + ret = reply((struct ib_smp *) pmp); + goto bail; + } + + case IB_MGMT_METHOD_TRAP: + case IB_MGMT_METHOD_GET_RESP: + /* + * The ib_mad module will call us to process responses + * before checking for other consumers. + * Just tell the caller to process it normally. + */ + ret = IB_MAD_RESULT_SUCCESS; + goto bail; + + default: + pmp->mad_hdr.status |= IB_SMP_UNSUP_METHOD; + ret = reply((struct ib_smp *) pmp); + } + +bail: + return ret; +} + +static int cc_get_classportinfo(struct ib_cc_mad *ccp, + struct ib_device *ibdev) +{ + struct ib_cc_classportinfo_attr *p = + (struct ib_cc_classportinfo_attr *)ccp->mgmt_data; + + p->base_version = 1; + p->class_version = 1; + p->cap_mask = 0; + + /* + * Expected response time is 4.096 usec. * 2^18 == 1.073741824 sec. + */ + p->resp_time_value = 18; + + return reply((struct ib_smp *) ccp); +} + +static int cc_get_congestion_info(struct ib_cc_mad *ccp, + struct ib_device *ibdev, u8 port) +{ + struct ib_cc_info_attr *p = + (struct ib_cc_info_attr *)ccp->mgmt_data; + struct qib_ibport *ibp = to_iport(ibdev, port); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + + p->congestion_info = 0; + p->control_table_cap = ppd->cc_max_table_entries; + + return reply((struct ib_smp *) ccp); +} + +static int cc_get_congestion_setting(struct ib_cc_mad *ccp, + struct ib_device *ibdev, u8 port) +{ + int i; + struct ib_cc_congestion_setting_attr *p = + (struct ib_cc_congestion_setting_attr *)ccp->mgmt_data; + struct qib_ibport *ibp = to_iport(ibdev, port); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + struct ib_cc_congestion_entry_shadow *entries; + + spin_lock(&ppd->cc_shadow_lock); + + entries = ppd->congestion_entries_shadow->entries; + p->port_control = cpu_to_be16( + ppd->congestion_entries_shadow->port_control); + p->control_map = cpu_to_be16( + ppd->congestion_entries_shadow->control_map); + for (i = 0; i < IB_CC_CCS_ENTRIES; i++) { + p->entries[i].ccti_increase = entries[i].ccti_increase; + p->entries[i].ccti_timer = cpu_to_be16(entries[i].ccti_timer); + p->entries[i].trigger_threshold = entries[i].trigger_threshold; + p->entries[i].ccti_min = entries[i].ccti_min; + } + + spin_unlock(&ppd->cc_shadow_lock); + + return reply((struct ib_smp *) ccp); +} + +static int cc_get_congestion_control_table(struct ib_cc_mad *ccp, + struct ib_device *ibdev, u8 port) +{ + struct ib_cc_table_attr *p = + (struct ib_cc_table_attr *)ccp->mgmt_data; + struct qib_ibport *ibp = to_iport(ibdev, port); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + u32 cct_block_index = be32_to_cpu(ccp->attr_mod); + u32 max_cct_block; + u32 cct_entry; + struct ib_cc_table_entry_shadow *entries; + int i; + + /* Is the table index more than what is supported? */ + if (cct_block_index > IB_CC_TABLE_CAP_DEFAULT - 1) + goto bail; + + spin_lock(&ppd->cc_shadow_lock); + + max_cct_block = + (ppd->ccti_entries_shadow->ccti_last_entry + 1)/IB_CCT_ENTRIES; + max_cct_block = max_cct_block ? max_cct_block - 1 : 0; + + if (cct_block_index > max_cct_block) { + spin_unlock(&ppd->cc_shadow_lock); + goto bail; + } + + ccp->attr_mod = cpu_to_be32(cct_block_index); + + cct_entry = IB_CCT_ENTRIES * (cct_block_index + 1); + + cct_entry--; + + p->ccti_limit = cpu_to_be16(cct_entry); + + entries = &ppd->ccti_entries_shadow-> + entries[IB_CCT_ENTRIES * cct_block_index]; + cct_entry %= IB_CCT_ENTRIES; + + for (i = 0; i <= cct_entry; i++) + p->ccti_entries[i].entry = cpu_to_be16(entries[i].entry); + + spin_unlock(&ppd->cc_shadow_lock); + + return reply((struct ib_smp *) ccp); + +bail: + return reply_failure((struct ib_smp *) ccp); +} + +static int cc_set_congestion_setting(struct ib_cc_mad *ccp, + struct ib_device *ibdev, u8 port) +{ + struct ib_cc_congestion_setting_attr *p = + (struct ib_cc_congestion_setting_attr *)ccp->mgmt_data; + struct qib_ibport *ibp = to_iport(ibdev, port); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + int i; + + ppd->cc_sl_control_map = be16_to_cpu(p->control_map); + + for (i = 0; i < IB_CC_CCS_ENTRIES; i++) { + ppd->congestion_entries[i].ccti_increase = + p->entries[i].ccti_increase; + + ppd->congestion_entries[i].ccti_timer = + be16_to_cpu(p->entries[i].ccti_timer); + + ppd->congestion_entries[i].trigger_threshold = + p->entries[i].trigger_threshold; + + ppd->congestion_entries[i].ccti_min = + p->entries[i].ccti_min; + } + + return reply((struct ib_smp *) ccp); +} + +static int cc_set_congestion_control_table(struct ib_cc_mad *ccp, + struct ib_device *ibdev, u8 port) +{ + struct ib_cc_table_attr *p = + (struct ib_cc_table_attr *)ccp->mgmt_data; + struct qib_ibport *ibp = to_iport(ibdev, port); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + u32 cct_block_index = be32_to_cpu(ccp->attr_mod); + u32 cct_entry; + struct ib_cc_table_entry_shadow *entries; + int i; + + /* Is the table index more than what is supported? */ + if (cct_block_index > IB_CC_TABLE_CAP_DEFAULT - 1) + goto bail; + + /* If this packet is the first in the sequence then + * zero the total table entry count. + */ + if (be16_to_cpu(p->ccti_limit) < IB_CCT_ENTRIES) + ppd->total_cct_entry = 0; + + cct_entry = (be16_to_cpu(p->ccti_limit))%IB_CCT_ENTRIES; + + /* ccti_limit is 0 to 63 */ + ppd->total_cct_entry += (cct_entry + 1); + + if (ppd->total_cct_entry > ppd->cc_supported_table_entries) + goto bail; + + ppd->ccti_limit = be16_to_cpu(p->ccti_limit); + + entries = ppd->ccti_entries + (IB_CCT_ENTRIES * cct_block_index); + + for (i = 0; i <= cct_entry; i++) + entries[i].entry = be16_to_cpu(p->ccti_entries[i].entry); + + spin_lock(&ppd->cc_shadow_lock); + + ppd->ccti_entries_shadow->ccti_last_entry = ppd->total_cct_entry - 1; + memcpy(ppd->ccti_entries_shadow->entries, ppd->ccti_entries, + (ppd->total_cct_entry * sizeof(struct ib_cc_table_entry))); + + ppd->congestion_entries_shadow->port_control = IB_CC_CCS_PC_SL_BASED; + ppd->congestion_entries_shadow->control_map = ppd->cc_sl_control_map; + memcpy(ppd->congestion_entries_shadow->entries, ppd->congestion_entries, + IB_CC_CCS_ENTRIES * sizeof(struct ib_cc_congestion_entry)); + + spin_unlock(&ppd->cc_shadow_lock); + + return reply((struct ib_smp *) ccp); + +bail: + return reply_failure((struct ib_smp *) ccp); +} + +static int process_cc(struct ib_device *ibdev, int mad_flags, + u8 port, const struct ib_mad *in_mad, + struct ib_mad *out_mad) +{ + struct ib_cc_mad *ccp = (struct ib_cc_mad *)out_mad; + *out_mad = *in_mad; + + if (ccp->class_version != 2) { + ccp->status |= IB_SMP_UNSUP_VERSION; + return reply((struct ib_smp *)ccp); + } + + switch (ccp->method) { + case IB_MGMT_METHOD_GET: + switch (ccp->attr_id) { + case IB_CC_ATTR_CLASSPORTINFO: + return cc_get_classportinfo(ccp, ibdev); + case IB_CC_ATTR_CONGESTION_INFO: + return cc_get_congestion_info(ccp, ibdev, port); + case IB_CC_ATTR_CA_CONGESTION_SETTING: + return cc_get_congestion_setting(ccp, ibdev, port); + case IB_CC_ATTR_CONGESTION_CONTROL_TABLE: + return cc_get_congestion_control_table(ccp, ibdev, port); + default: + ccp->status |= IB_SMP_UNSUP_METH_ATTR; + return reply((struct ib_smp *) ccp); + } + case IB_MGMT_METHOD_SET: + switch (ccp->attr_id) { + case IB_CC_ATTR_CA_CONGESTION_SETTING: + return cc_set_congestion_setting(ccp, ibdev, port); + case IB_CC_ATTR_CONGESTION_CONTROL_TABLE: + return cc_set_congestion_control_table(ccp, ibdev, port); + default: + ccp->status |= IB_SMP_UNSUP_METH_ATTR; + return reply((struct ib_smp *) ccp); + } + case IB_MGMT_METHOD_GET_RESP: + /* + * The ib_mad module will call us to process responses + * before checking for other consumers. + * Just tell the caller to process it normally. + */ + return IB_MAD_RESULT_SUCCESS; + } + + /* method is unsupported */ + ccp->status |= IB_SMP_UNSUP_METHOD; + return reply((struct ib_smp *) ccp); +} + +/** + * qib_process_mad - process an incoming MAD packet + * @ibdev: the infiniband device this packet came in on + * @mad_flags: MAD flags + * @port: the port number this packet came in on + * @in_wc: the work completion entry for this packet + * @in_grh: the global route header for this packet + * @in: the incoming MAD + * @out: any outgoing MAD reply + * @out_mad_size: size of the outgoing MAD reply + * @out_mad_pkey_index: unused + * + * Returns IB_MAD_RESULT_SUCCESS if this is a MAD that we are not + * interested in processing. + * + * Note that the verbs framework has already done the MAD sanity checks, + * and hop count/pointer updating for IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE + * MADs. + * + * This is called by the ib_mad module. + */ +int qib_process_mad(struct ib_device *ibdev, int mad_flags, u32 port, + const struct ib_wc *in_wc, const struct ib_grh *in_grh, + const struct ib_mad *in, struct ib_mad *out, + size_t *out_mad_size, u16 *out_mad_pkey_index) +{ + int ret; + struct qib_ibport *ibp = to_iport(ibdev, port); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + + switch (in->mad_hdr.mgmt_class) { + case IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE: + case IB_MGMT_CLASS_SUBN_LID_ROUTED: + ret = process_subn(ibdev, mad_flags, port, in, out); + goto bail; + + case IB_MGMT_CLASS_PERF_MGMT: + ret = process_perf(ibdev, port, in, out); + goto bail; + + case IB_MGMT_CLASS_CONG_MGMT: + if (!ppd->congestion_entries_shadow || + !qib_cc_table_size) { + ret = IB_MAD_RESULT_SUCCESS; + goto bail; + } + ret = process_cc(ibdev, mad_flags, port, in, out); + goto bail; + + default: + ret = IB_MAD_RESULT_SUCCESS; + } + +bail: + return ret; +} + +static void xmit_wait_timer_func(struct timer_list *t) +{ + struct qib_pportdata *ppd = from_timer(ppd, t, cong_stats.timer); + struct qib_devdata *dd = dd_from_ppd(ppd); + unsigned long flags; + u8 status; + + spin_lock_irqsave(&ppd->ibport_data.rvp.lock, flags); + if (ppd->cong_stats.flags == IB_PMA_CONG_HW_CONTROL_SAMPLE) { + status = dd->f_portcntr(ppd, QIBPORTCNTR_PSSTAT); + if (status == IB_PMA_SAMPLE_STATUS_DONE) { + /* save counter cache */ + cache_hw_sample_counters(ppd); + ppd->cong_stats.flags = IB_PMA_CONG_HW_CONTROL_TIMER; + } else + goto done; + } + ppd->cong_stats.counter = xmit_wait_get_value_delta(ppd); + dd->f_set_cntr_sample(ppd, QIB_CONG_TIMER_PSINTERVAL, 0x0); +done: + spin_unlock_irqrestore(&ppd->ibport_data.rvp.lock, flags); + mod_timer(&ppd->cong_stats.timer, jiffies + HZ); +} + +void qib_notify_create_mad_agent(struct rvt_dev_info *rdi, int port_idx) +{ + struct qib_ibdev *ibdev = container_of(rdi, struct qib_ibdev, rdi); + struct qib_devdata *dd = container_of(ibdev, + struct qib_devdata, verbs_dev); + + /* Initialize xmit_wait structure */ + dd->pport[port_idx].cong_stats.counter = 0; + timer_setup(&dd->pport[port_idx].cong_stats.timer, + xmit_wait_timer_func, 0); + dd->pport[port_idx].cong_stats.timer.expires = 0; + add_timer(&dd->pport[port_idx].cong_stats.timer); +} + +void qib_notify_free_mad_agent(struct rvt_dev_info *rdi, int port_idx) +{ + struct qib_ibdev *ibdev = container_of(rdi, struct qib_ibdev, rdi); + struct qib_devdata *dd = container_of(ibdev, + struct qib_devdata, verbs_dev); + + if (dd->pport[port_idx].cong_stats.timer.function) + del_timer_sync(&dd->pport[port_idx].cong_stats.timer); + + if (dd->pport[port_idx].ibport_data.smi_ah) + rdma_destroy_ah(&dd->pport[port_idx].ibport_data.smi_ah->ibah, + RDMA_DESTROY_AH_SLEEPABLE); +} diff --git a/drivers/infiniband/hw/qib/qib_mad.h b/drivers/infiniband/hw/qib/qib_mad.h new file mode 100644 index 000000000..57e99dc0d --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_mad.h @@ -0,0 +1,300 @@ +/* + * Copyright (c) 2012 Intel Corporation. All rights reserved. + * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. + * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef _QIB_MAD_H +#define _QIB_MAD_H + +#include <rdma/ib_pma.h> + +#define IB_SMP_UNSUP_VERSION \ +cpu_to_be16(IB_MGMT_MAD_STATUS_BAD_VERSION) + +#define IB_SMP_UNSUP_METHOD \ +cpu_to_be16(IB_MGMT_MAD_STATUS_UNSUPPORTED_METHOD) + +#define IB_SMP_UNSUP_METH_ATTR \ +cpu_to_be16(IB_MGMT_MAD_STATUS_UNSUPPORTED_METHOD_ATTRIB) + +#define IB_SMP_INVALID_FIELD \ +cpu_to_be16(IB_MGMT_MAD_STATUS_INVALID_ATTRIB_VALUE) + +#define IB_VLARB_LOWPRI_0_31 1 +#define IB_VLARB_LOWPRI_32_63 2 +#define IB_VLARB_HIGHPRI_0_31 3 +#define IB_VLARB_HIGHPRI_32_63 4 + +#define IB_PMA_PORT_COUNTERS_CONG cpu_to_be16(0xFF00) + +struct ib_pma_portcounters_cong { + u8 reserved; + u8 reserved1; + __be16 port_check_rate; + __be16 symbol_error_counter; + u8 link_error_recovery_counter; + u8 link_downed_counter; + __be16 port_rcv_errors; + __be16 port_rcv_remphys_errors; + __be16 port_rcv_switch_relay_errors; + __be16 port_xmit_discards; + u8 port_xmit_constraint_errors; + u8 port_rcv_constraint_errors; + u8 reserved2; + u8 link_overrun_errors; /* LocalLink: 7:4, BufferOverrun: 3:0 */ + __be16 reserved3; + __be16 vl15_dropped; + __be64 port_xmit_data; + __be64 port_rcv_data; + __be64 port_xmit_packets; + __be64 port_rcv_packets; + __be64 port_xmit_wait; + __be64 port_adr_events; +} __packed; + +#define IB_PMA_CONG_HW_CONTROL_TIMER 0x00 +#define IB_PMA_CONG_HW_CONTROL_SAMPLE 0x01 + +#define QIB_XMIT_RATE_UNSUPPORTED 0x0 +#define QIB_XMIT_RATE_PICO 0x7 +/* number of 4nsec cycles equaling 2secs */ +#define QIB_CONG_TIMER_PSINTERVAL 0x1DCD64EC + +#define IB_PMA_SEL_CONG_ALL 0x01 +#define IB_PMA_SEL_CONG_PORT_DATA 0x02 +#define IB_PMA_SEL_CONG_XMIT 0x04 +#define IB_PMA_SEL_CONG_ROUTING 0x08 + +/* + * Congestion control class attributes + */ +#define IB_CC_ATTR_CLASSPORTINFO cpu_to_be16(0x0001) +#define IB_CC_ATTR_NOTICE cpu_to_be16(0x0002) +#define IB_CC_ATTR_CONGESTION_INFO cpu_to_be16(0x0011) +#define IB_CC_ATTR_CONGESTION_KEY_INFO cpu_to_be16(0x0012) +#define IB_CC_ATTR_CONGESTION_LOG cpu_to_be16(0x0013) +#define IB_CC_ATTR_SWITCH_CONGESTION_SETTING cpu_to_be16(0x0014) +#define IB_CC_ATTR_SWITCH_PORT_CONGESTION_SETTING cpu_to_be16(0x0015) +#define IB_CC_ATTR_CA_CONGESTION_SETTING cpu_to_be16(0x0016) +#define IB_CC_ATTR_CONGESTION_CONTROL_TABLE cpu_to_be16(0x0017) +#define IB_CC_ATTR_TIME_STAMP cpu_to_be16(0x0018) + +/* generalizations for threshold values */ +#define IB_CC_THRESHOLD_NONE 0x0 +#define IB_CC_THRESHOLD_MIN 0x1 +#define IB_CC_THRESHOLD_MAX 0xf + +/* CCA MAD header constants */ +#define IB_CC_MAD_LOGDATA_LEN 32 +#define IB_CC_MAD_MGMTDATA_LEN 192 + +struct ib_cc_mad { + u8 base_version; + u8 mgmt_class; + u8 class_version; + u8 method; + __be16 status; + __be16 class_specific; + __be64 tid; + __be16 attr_id; + __be16 resv; + __be32 attr_mod; + __be64 cckey; + + /* For CongestionLog attribute only */ + u8 log_data[IB_CC_MAD_LOGDATA_LEN]; + + u8 mgmt_data[IB_CC_MAD_MGMTDATA_LEN]; +} __packed; + +/* + * Congestion Control class portinfo capability mask bits + */ +#define IB_CC_CPI_CM_TRAP_GEN cpu_to_be16(1 << 0) +#define IB_CC_CPI_CM_GET_SET_NOTICE cpu_to_be16(1 << 1) +#define IB_CC_CPI_CM_CAP2 cpu_to_be16(1 << 2) +#define IB_CC_CPI_CM_ENHANCEDPORT0_CC cpu_to_be16(1 << 8) + +struct ib_cc_classportinfo_attr { + u8 base_version; + u8 class_version; + __be16 cap_mask; + u8 reserved[3]; + u8 resp_time_value; /* only lower 5 bits */ + union ib_gid redirect_gid; + __be32 redirect_tc_sl_fl; /* 8, 4, 20 bits respectively */ + __be16 redirect_lid; + __be16 redirect_pkey; + __be32 redirect_qp; /* only lower 24 bits */ + __be32 redirect_qkey; + union ib_gid trap_gid; + __be32 trap_tc_sl_fl; /* 8, 4, 20 bits respectively */ + __be16 trap_lid; + __be16 trap_pkey; + __be32 trap_hl_qp; /* 8, 24 bits respectively */ + __be32 trap_qkey; +} __packed; + +/* Congestion control traps */ +#define IB_CC_TRAP_KEY_VIOLATION 0x0000 + +struct ib_cc_trap_key_violation_attr { + __be16 source_lid; + u8 method; + u8 reserved1; + __be16 attrib_id; + __be32 attrib_mod; + __be32 qp; + __be64 cckey; + u8 sgid[16]; + u8 padding[24]; +} __packed; + +/* Congestion info flags */ +#define IB_CC_CI_FLAGS_CREDIT_STARVATION 0x1 +#define IB_CC_TABLE_CAP_DEFAULT 31 + +struct ib_cc_info_attr { + __be16 congestion_info; + u8 control_table_cap; /* Multiple of 64 entry unit CCTs */ +} __packed; + +struct ib_cc_key_info_attr { + __be64 cckey; + u8 protect; + __be16 lease_period; + __be16 violations; +} __packed; + +#define IB_CC_CL_CA_LOGEVENTS_LEN 208 + +struct ib_cc_log_attr { + u8 log_type; + u8 congestion_flags; + __be16 threshold_event_counter; + __be16 threshold_congestion_event_map; + __be16 current_time_stamp; + u8 log_events[IB_CC_CL_CA_LOGEVENTS_LEN]; +} __packed; + +#define IB_CC_CLEC_SERVICETYPE_RC 0x0 +#define IB_CC_CLEC_SERVICETYPE_UC 0x1 +#define IB_CC_CLEC_SERVICETYPE_RD 0x2 +#define IB_CC_CLEC_SERVICETYPE_UD 0x3 + +struct ib_cc_log_event { + u8 local_qp_cn_entry; + u8 remote_qp_number_cn_entry[3]; + u8 sl_cn_entry:4; + u8 service_type_cn_entry:4; + __be32 remote_lid_cn_entry; + __be32 timestamp_cn_entry; +} __packed; + +/* Sixteen congestion entries */ +#define IB_CC_CCS_ENTRIES 16 + +/* Port control flags */ +#define IB_CC_CCS_PC_SL_BASED 0x01 + +struct ib_cc_congestion_entry { + u8 ccti_increase; + __be16 ccti_timer; + u8 trigger_threshold; + u8 ccti_min; /* min CCTI for cc table */ +} __packed; + +struct ib_cc_congestion_entry_shadow { + u8 ccti_increase; + u16 ccti_timer; + u8 trigger_threshold; + u8 ccti_min; /* min CCTI for cc table */ +} __packed; + +struct ib_cc_congestion_setting_attr { + __be16 port_control; + __be16 control_map; + struct ib_cc_congestion_entry entries[IB_CC_CCS_ENTRIES]; +} __packed; + +struct ib_cc_congestion_setting_attr_shadow { + u16 port_control; + u16 control_map; + struct ib_cc_congestion_entry_shadow entries[IB_CC_CCS_ENTRIES]; +} __packed; + +#define IB_CC_TABLE_ENTRY_INCREASE_DEFAULT 1 +#define IB_CC_TABLE_ENTRY_TIMER_DEFAULT 1 + +/* 64 Congestion Control table entries in a single MAD */ +#define IB_CCT_ENTRIES 64 +#define IB_CCT_MIN_ENTRIES (IB_CCT_ENTRIES * 2) + +struct ib_cc_table_entry { + __be16 entry; /* shift:2, multiplier:14 */ +}; + +struct ib_cc_table_entry_shadow { + u16 entry; /* shift:2, multiplier:14 */ +}; + +struct ib_cc_table_attr { + __be16 ccti_limit; /* max CCTI for cc table */ + struct ib_cc_table_entry ccti_entries[IB_CCT_ENTRIES]; +} __packed; + +struct ib_cc_table_attr_shadow { + u16 ccti_limit; /* max CCTI for cc table */ + struct ib_cc_table_entry_shadow ccti_entries[IB_CCT_ENTRIES]; +} __packed; + +#define CC_TABLE_SHADOW_MAX \ + (IB_CC_TABLE_CAP_DEFAULT * IB_CCT_ENTRIES) + +struct cc_table_shadow { + u16 ccti_last_entry; + struct ib_cc_table_entry_shadow entries[CC_TABLE_SHADOW_MAX]; +} __packed; + +/* + * The PortSamplesControl.CounterMasks field is an array of 3 bit fields + * which specify the N'th counter's capabilities. See ch. 16.1.3.2. + * We support 5 counters which only count the mandatory quantities. + */ +#define COUNTER_MASK(q, n) (q << ((9 - n) * 3)) +#define COUNTER_MASK0_9 \ + cpu_to_be32(COUNTER_MASK(1, 0) | \ + COUNTER_MASK(1, 1) | \ + COUNTER_MASK(1, 2) | \ + COUNTER_MASK(1, 3) | \ + COUNTER_MASK(1, 4)) + +#endif /* _QIB_MAD_H */ diff --git a/drivers/infiniband/hw/qib/qib_pcie.c b/drivers/infiniband/hw/qib/qib_pcie.c new file mode 100644 index 000000000..692b64efa --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_pcie.c @@ -0,0 +1,606 @@ +/* + * Copyright (c) 2010 - 2017 Intel Corporation. All rights reserved. + * Copyright (c) 2008, 2009 QLogic Corporation. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/pci.h> +#include <linux/io.h> +#include <linux/delay.h> +#include <linux/vmalloc.h> +#include <linux/aer.h> +#include <linux/module.h> + +#include "qib.h" + +/* + * This file contains PCIe utility routines that are common to the + * various QLogic InfiniPath adapters + */ + +/* + * Code to adjust PCIe capabilities. + * To minimize the change footprint, we call it + * from qib_pcie_params, which every chip-specific + * file calls, even though this violates some + * expectations of harmlessness. + */ +static void qib_tune_pcie_caps(struct qib_devdata *); +static void qib_tune_pcie_coalesce(struct qib_devdata *); + +/* + * Do all the common PCIe setup and initialization. + * devdata is not yet allocated, and is not allocated until after this + * routine returns success. Therefore qib_dev_err() can't be used for error + * printing. + */ +int qib_pcie_init(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + int ret; + + ret = pci_enable_device(pdev); + if (ret) { + /* + * This can happen (in theory) iff: + * We did a chip reset, and then failed to reprogram the + * BAR, or the chip reset due to an internal error. We then + * unloaded the driver and reloaded it. + * + * Both reset cases set the BAR back to initial state. For + * the latter case, the AER sticky error bit at offset 0x718 + * should be set, but the Linux kernel doesn't yet know + * about that, it appears. If the original BAR was retained + * in the kernel data structures, this may be OK. + */ + qib_early_err(&pdev->dev, "pci enable failed: error %d\n", + -ret); + goto done; + } + + ret = pci_request_regions(pdev, QIB_DRV_NAME); + if (ret) { + qib_devinfo(pdev, "pci_request_regions fails: err %d\n", -ret); + goto bail; + } + + ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); + if (ret) { + /* + * If the 64 bit setup fails, try 32 bit. Some systems + * do not setup 64 bit maps on systems with 2GB or less + * memory installed. + */ + ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); + if (ret) { + qib_devinfo(pdev, "Unable to set DMA mask: %d\n", ret); + goto bail; + } + } + + pci_set_master(pdev); + ret = pci_enable_pcie_error_reporting(pdev); + if (ret) { + qib_early_err(&pdev->dev, + "Unable to enable pcie error reporting: %d\n", + ret); + ret = 0; + } + goto done; + +bail: + pci_disable_device(pdev); + pci_release_regions(pdev); +done: + return ret; +} + +/* + * Do remaining PCIe setup, once dd is allocated, and save away + * fields required to re-initialize after a chip reset, or for + * various other purposes + */ +int qib_pcie_ddinit(struct qib_devdata *dd, struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + unsigned long len; + resource_size_t addr; + + dd->pcidev = pdev; + pci_set_drvdata(pdev, dd); + + addr = pci_resource_start(pdev, 0); + len = pci_resource_len(pdev, 0); + + dd->kregbase = ioremap(addr, len); + if (!dd->kregbase) + return -ENOMEM; + + dd->kregend = (u64 __iomem *)((void __iomem *) dd->kregbase + len); + dd->physaddr = addr; /* used for io_remap, etc. */ + + /* + * Save BARs to rewrite after device reset. Save all 64 bits of + * BAR, just in case. + */ + dd->pcibar0 = addr; + dd->pcibar1 = addr >> 32; + dd->deviceid = ent->device; /* save for later use */ + dd->vendorid = ent->vendor; + + return 0; +} + +/* + * Do PCIe cleanup, after chip-specific cleanup, etc. Just prior + * to releasing the dd memory. + * void because none of the core pcie cleanup returns are void + */ +void qib_pcie_ddcleanup(struct qib_devdata *dd) +{ + u64 __iomem *base = (void __iomem *) dd->kregbase; + + dd->kregbase = NULL; + iounmap(base); + if (dd->piobase) + iounmap(dd->piobase); + if (dd->userbase) + iounmap(dd->userbase); + if (dd->piovl15base) + iounmap(dd->piovl15base); + + pci_disable_device(dd->pcidev); + pci_release_regions(dd->pcidev); + + pci_set_drvdata(dd->pcidev, NULL); +} + +/* + * We save the msi lo and hi values, so we can restore them after + * chip reset (the kernel PCI infrastructure doesn't yet handle that + * correctly. + */ +static void qib_cache_msi_info(struct qib_devdata *dd, int pos) +{ + struct pci_dev *pdev = dd->pcidev; + u16 control; + + pci_read_config_dword(pdev, pos + PCI_MSI_ADDRESS_LO, &dd->msi_lo); + pci_read_config_dword(pdev, pos + PCI_MSI_ADDRESS_HI, &dd->msi_hi); + pci_read_config_word(pdev, pos + PCI_MSI_FLAGS, &control); + + /* now save the data (vector) info */ + pci_read_config_word(pdev, + pos + ((control & PCI_MSI_FLAGS_64BIT) ? 12 : 8), + &dd->msi_data); +} + +int qib_pcie_params(struct qib_devdata *dd, u32 minw, u32 *nent) +{ + u16 linkstat, speed; + int nvec; + int maxvec; + unsigned int flags = PCI_IRQ_MSIX | PCI_IRQ_MSI; + + if (!pci_is_pcie(dd->pcidev)) { + qib_dev_err(dd, "Can't find PCI Express capability!\n"); + /* set up something... */ + dd->lbus_width = 1; + dd->lbus_speed = 2500; /* Gen1, 2.5GHz */ + nvec = -1; + goto bail; + } + + if (dd->flags & QIB_HAS_INTX) + flags |= PCI_IRQ_LEGACY; + maxvec = (nent && *nent) ? *nent : 1; + nvec = pci_alloc_irq_vectors(dd->pcidev, 1, maxvec, flags); + if (nvec < 0) + goto bail; + + /* + * If nent exists, make sure to record how many vectors were allocated. + * If msix_enabled is false, return 0 so the fallback code works + * correctly. + */ + if (nent) + *nent = !dd->pcidev->msix_enabled ? 0 : nvec; + + if (dd->pcidev->msi_enabled) + qib_cache_msi_info(dd, dd->pcidev->msi_cap); + + pcie_capability_read_word(dd->pcidev, PCI_EXP_LNKSTA, &linkstat); + /* + * speed is bits 0-3, linkwidth is bits 4-8 + * no defines for them in headers + */ + speed = linkstat & 0xf; + linkstat >>= 4; + linkstat &= 0x1f; + dd->lbus_width = linkstat; + + switch (speed) { + case 1: + dd->lbus_speed = 2500; /* Gen1, 2.5GHz */ + break; + case 2: + dd->lbus_speed = 5000; /* Gen1, 5GHz */ + break; + default: /* not defined, assume gen1 */ + dd->lbus_speed = 2500; + break; + } + + /* + * Check against expected pcie width and complain if "wrong" + * on first initialization, not afterwards (i.e., reset). + */ + if (minw && linkstat < minw) + qib_dev_err(dd, + "PCIe width %u (x%u HCA), performance reduced\n", + linkstat, minw); + + qib_tune_pcie_caps(dd); + + qib_tune_pcie_coalesce(dd); + +bail: + /* fill in string, even on errors */ + snprintf(dd->lbus_info, sizeof(dd->lbus_info), + "PCIe,%uMHz,x%u\n", dd->lbus_speed, dd->lbus_width); + return nvec < 0 ? nvec : 0; +} + +/** + * qib_free_irq - Cleanup INTx and MSI interrupts + * @dd: valid pointer to qib dev data + * + * Since cleanup for INTx and MSI interrupts is trivial, have a common + * routine. + * + */ +void qib_free_irq(struct qib_devdata *dd) +{ + pci_free_irq(dd->pcidev, 0, dd); + pci_free_irq_vectors(dd->pcidev); +} + +/* + * Setup pcie interrupt stuff again after a reset. I'd like to just call + * pci_enable_msi() again for msi, but when I do that, + * the MSI enable bit doesn't get set in the command word, and + * we switch to a different interrupt vector, which is confusing, + * so I instead just do it all inline. Perhaps somehow can tie this + * into the PCIe hotplug support at some point + */ +int qib_reinit_intr(struct qib_devdata *dd) +{ + int pos; + u16 control; + int ret = 0; + + /* If we aren't using MSI, don't restore it */ + if (!dd->msi_lo) + goto bail; + + pos = dd->pcidev->msi_cap; + if (!pos) { + qib_dev_err(dd, + "Can't find MSI capability, can't restore MSI settings\n"); + ret = 0; + /* nothing special for MSIx, just MSI */ + goto bail; + } + pci_write_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_LO, + dd->msi_lo); + pci_write_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_HI, + dd->msi_hi); + pci_read_config_word(dd->pcidev, pos + PCI_MSI_FLAGS, &control); + if (!(control & PCI_MSI_FLAGS_ENABLE)) { + control |= PCI_MSI_FLAGS_ENABLE; + pci_write_config_word(dd->pcidev, pos + PCI_MSI_FLAGS, + control); + } + /* now rewrite the data (vector) info */ + pci_write_config_word(dd->pcidev, pos + + ((control & PCI_MSI_FLAGS_64BIT) ? 12 : 8), + dd->msi_data); + ret = 1; +bail: + qib_free_irq(dd); + + if (!ret && (dd->flags & QIB_HAS_INTX)) + ret = 1; + + /* and now set the pci master bit again */ + pci_set_master(dd->pcidev); + + return ret; +} + +/* + * These two routines are helper routines for the device reset code + * to move all the pcie code out of the chip-specific driver code. + */ +void qib_pcie_getcmd(struct qib_devdata *dd, u16 *cmd, u8 *iline, u8 *cline) +{ + pci_read_config_word(dd->pcidev, PCI_COMMAND, cmd); + pci_read_config_byte(dd->pcidev, PCI_INTERRUPT_LINE, iline); + pci_read_config_byte(dd->pcidev, PCI_CACHE_LINE_SIZE, cline); +} + +void qib_pcie_reenable(struct qib_devdata *dd, u16 cmd, u8 iline, u8 cline) +{ + int r; + + r = pci_write_config_dword(dd->pcidev, PCI_BASE_ADDRESS_0, + dd->pcibar0); + if (r) + qib_dev_err(dd, "rewrite of BAR0 failed: %d\n", r); + r = pci_write_config_dword(dd->pcidev, PCI_BASE_ADDRESS_1, + dd->pcibar1); + if (r) + qib_dev_err(dd, "rewrite of BAR1 failed: %d\n", r); + /* now re-enable memory access, and restore cosmetic settings */ + pci_write_config_word(dd->pcidev, PCI_COMMAND, cmd); + pci_write_config_byte(dd->pcidev, PCI_INTERRUPT_LINE, iline); + pci_write_config_byte(dd->pcidev, PCI_CACHE_LINE_SIZE, cline); + r = pci_enable_device(dd->pcidev); + if (r) + qib_dev_err(dd, + "pci_enable_device failed after reset: %d\n", r); +} + + +static int qib_pcie_coalesce; +module_param_named(pcie_coalesce, qib_pcie_coalesce, int, S_IRUGO); +MODULE_PARM_DESC(pcie_coalesce, "tune PCIe coalescing on some Intel chipsets"); + +/* + * Enable PCIe completion and data coalescing, on Intel 5x00 and 7300 + * chipsets. This is known to be unsafe for some revisions of some + * of these chipsets, with some BIOS settings, and enabling it on those + * systems may result in the system crashing, and/or data corruption. + */ +static void qib_tune_pcie_coalesce(struct qib_devdata *dd) +{ + struct pci_dev *parent; + u16 devid; + u32 mask, bits, val; + + if (!qib_pcie_coalesce) + return; + + /* Find out supported and configured values for parent (root) */ + parent = dd->pcidev->bus->self; + if (parent->bus->parent) { + qib_devinfo(dd->pcidev, "Parent not root\n"); + return; + } + if (!pci_is_pcie(parent)) + return; + if (parent->vendor != 0x8086) + return; + + /* + * - bit 12: Max_rdcmp_Imt_EN: need to set to 1 + * - bit 11: COALESCE_FORCE: need to set to 0 + * - bit 10: COALESCE_EN: need to set to 1 + * (but limitations on some on some chipsets) + * + * On the Intel 5000, 5100, and 7300 chipsets, there is + * also: - bit 25:24: COALESCE_MODE, need to set to 0 + */ + devid = parent->device; + if (devid >= 0x25e2 && devid <= 0x25fa) { + /* 5000 P/V/X/Z */ + if (parent->revision <= 0xb2) + bits = 1U << 10; + else + bits = 7U << 10; + mask = (3U << 24) | (7U << 10); + } else if (devid >= 0x65e2 && devid <= 0x65fa) { + /* 5100 */ + bits = 1U << 10; + mask = (3U << 24) | (7U << 10); + } else if (devid >= 0x4021 && devid <= 0x402e) { + /* 5400 */ + bits = 7U << 10; + mask = 7U << 10; + } else if (devid >= 0x3604 && devid <= 0x360a) { + /* 7300 */ + bits = 7U << 10; + mask = (3U << 24) | (7U << 10); + } else { + /* not one of the chipsets that we know about */ + return; + } + pci_read_config_dword(parent, 0x48, &val); + val &= ~mask; + val |= bits; + pci_write_config_dword(parent, 0x48, val); +} + +/* + * BIOS may not set PCIe bus-utilization parameters for best performance. + * Check and optionally adjust them to maximize our throughput. + */ +static int qib_pcie_caps; +module_param_named(pcie_caps, qib_pcie_caps, int, S_IRUGO); +MODULE_PARM_DESC(pcie_caps, "Max PCIe tuning: Payload (0..3), ReadReq (4..7)"); + +static void qib_tune_pcie_caps(struct qib_devdata *dd) +{ + struct pci_dev *parent; + u16 rc_mpss, rc_mps, ep_mpss, ep_mps; + u16 rc_mrrs, ep_mrrs, max_mrrs; + + /* Find out supported and configured values for parent (root) */ + parent = dd->pcidev->bus->self; + if (!pci_is_root_bus(parent->bus)) { + qib_devinfo(dd->pcidev, "Parent not root\n"); + return; + } + + if (!pci_is_pcie(parent) || !pci_is_pcie(dd->pcidev)) + return; + + rc_mpss = parent->pcie_mpss; + rc_mps = ffs(pcie_get_mps(parent)) - 8; + /* Find out supported and configured values for endpoint (us) */ + ep_mpss = dd->pcidev->pcie_mpss; + ep_mps = ffs(pcie_get_mps(dd->pcidev)) - 8; + + /* Find max payload supported by root, endpoint */ + if (rc_mpss > ep_mpss) + rc_mpss = ep_mpss; + + /* If Supported greater than limit in module param, limit it */ + if (rc_mpss > (qib_pcie_caps & 7)) + rc_mpss = qib_pcie_caps & 7; + /* If less than (allowed, supported), bump root payload */ + if (rc_mpss > rc_mps) { + rc_mps = rc_mpss; + pcie_set_mps(parent, 128 << rc_mps); + } + /* If less than (allowed, supported), bump endpoint payload */ + if (rc_mpss > ep_mps) { + ep_mps = rc_mpss; + pcie_set_mps(dd->pcidev, 128 << ep_mps); + } + + /* + * Now the Read Request size. + * No field for max supported, but PCIe spec limits it to 4096, + * which is code '5' (log2(4096) - 7) + */ + max_mrrs = 5; + if (max_mrrs > ((qib_pcie_caps >> 4) & 7)) + max_mrrs = (qib_pcie_caps >> 4) & 7; + + max_mrrs = 128 << max_mrrs; + rc_mrrs = pcie_get_readrq(parent); + ep_mrrs = pcie_get_readrq(dd->pcidev); + + if (max_mrrs > rc_mrrs) { + rc_mrrs = max_mrrs; + pcie_set_readrq(parent, rc_mrrs); + } + if (max_mrrs > ep_mrrs) { + ep_mrrs = max_mrrs; + pcie_set_readrq(dd->pcidev, ep_mrrs); + } +} +/* End of PCIe capability tuning */ + +/* + * From here through qib_pci_err_handler definition is invoked via + * PCI error infrastructure, registered via pci + */ +static pci_ers_result_t +qib_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) +{ + struct qib_devdata *dd = pci_get_drvdata(pdev); + pci_ers_result_t ret = PCI_ERS_RESULT_RECOVERED; + + switch (state) { + case pci_channel_io_normal: + qib_devinfo(pdev, "State Normal, ignoring\n"); + break; + + case pci_channel_io_frozen: + qib_devinfo(pdev, "State Frozen, requesting reset\n"); + pci_disable_device(pdev); + ret = PCI_ERS_RESULT_NEED_RESET; + break; + + case pci_channel_io_perm_failure: + qib_devinfo(pdev, "State Permanent Failure, disabling\n"); + if (dd) { + /* no more register accesses! */ + dd->flags &= ~QIB_PRESENT; + qib_disable_after_error(dd); + } + /* else early, or other problem */ + ret = PCI_ERS_RESULT_DISCONNECT; + break; + + default: /* shouldn't happen */ + qib_devinfo(pdev, "QIB PCI errors detected (state %d)\n", + state); + break; + } + return ret; +} + +static pci_ers_result_t +qib_pci_mmio_enabled(struct pci_dev *pdev) +{ + u64 words = 0U; + struct qib_devdata *dd = pci_get_drvdata(pdev); + pci_ers_result_t ret = PCI_ERS_RESULT_RECOVERED; + + if (dd && dd->pport) { + words = dd->f_portcntr(dd->pport, QIBPORTCNTR_WORDRCV); + if (words == ~0ULL) + ret = PCI_ERS_RESULT_NEED_RESET; + } + qib_devinfo(pdev, + "QIB mmio_enabled function called, read wordscntr %Lx, returning %d\n", + words, ret); + return ret; +} + +static pci_ers_result_t +qib_pci_slot_reset(struct pci_dev *pdev) +{ + qib_devinfo(pdev, "QIB slot_reset function called, ignored\n"); + return PCI_ERS_RESULT_CAN_RECOVER; +} + +static void +qib_pci_resume(struct pci_dev *pdev) +{ + struct qib_devdata *dd = pci_get_drvdata(pdev); + + qib_devinfo(pdev, "QIB resume function called\n"); + /* + * Running jobs will fail, since it's asynchronous + * unlike sysfs-requested reset. Better than + * doing nothing. + */ + qib_init(dd, 1); /* same as re-init after reset */ +} + +const struct pci_error_handlers qib_pci_err_handler = { + .error_detected = qib_pci_error_detected, + .mmio_enabled = qib_pci_mmio_enabled, + .slot_reset = qib_pci_slot_reset, + .resume = qib_pci_resume, +}; diff --git a/drivers/infiniband/hw/qib/qib_pio_copy.c b/drivers/infiniband/hw/qib/qib_pio_copy.c new file mode 100644 index 000000000..10b8c444d --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_pio_copy.c @@ -0,0 +1,64 @@ +/* + * Copyright (c) 2009 QLogic Corporation. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "qib.h" + +/** + * qib_pio_copy - copy data to MMIO space, in multiples of 32-bits + * @to: destination, in MMIO space (must be 64-bit aligned) + * @from: source (must be 64-bit aligned) + * @count: number of 32-bit quantities to copy + * + * Copy data from kernel space to MMIO space, in multiples of 32 bits at a + * time. Order of access is not guaranteed, nor is a memory barrier + * performed afterwards. + */ +void qib_pio_copy(void __iomem *to, const void *from, size_t count) +{ +#ifdef CONFIG_64BIT + u64 __iomem *dst = to; + const u64 *src = from; + const u64 *end = src + (count >> 1); + + while (src < end) + __raw_writeq(*src++, dst++); + if (count & 1) + __raw_writel(*(const u32 *)src, dst); +#else + u32 __iomem *dst = to; + const u32 *src = from; + const u32 *end = src + count; + + while (src < end) + __raw_writel(*src++, dst++); +#endif +} diff --git a/drivers/infiniband/hw/qib/qib_qp.c b/drivers/infiniband/hw/qib/qib_qp.c new file mode 100644 index 000000000..1974ceb9d --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_qp.c @@ -0,0 +1,454 @@ +/* + * Copyright (c) 2012 - 2019 Intel Corporation. All rights reserved. + * Copyright (c) 2006 - 2012 QLogic Corporation. * All rights reserved. + * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/err.h> +#include <linux/vmalloc.h> +#include <rdma/rdma_vt.h> +#ifdef CONFIG_DEBUG_FS +#include <linux/seq_file.h> +#endif + +#include "qib.h" + +static inline unsigned mk_qpn(struct rvt_qpn_table *qpt, + struct rvt_qpn_map *map, unsigned off) +{ + return (map - qpt->map) * RVT_BITS_PER_PAGE + off; +} + +static inline unsigned find_next_offset(struct rvt_qpn_table *qpt, + struct rvt_qpn_map *map, unsigned off, + unsigned n, u16 qpt_mask) +{ + if (qpt_mask) { + off++; + if (((off & qpt_mask) >> 1) >= n) + off = (off | qpt_mask) + 2; + } else { + off = find_next_zero_bit(map->page, RVT_BITS_PER_PAGE, off); + } + return off; +} + +const struct rvt_operation_params qib_post_parms[RVT_OPERATION_MAX] = { +[IB_WR_RDMA_WRITE] = { + .length = sizeof(struct ib_rdma_wr), + .qpt_support = BIT(IB_QPT_UC) | BIT(IB_QPT_RC), +}, + +[IB_WR_RDMA_READ] = { + .length = sizeof(struct ib_rdma_wr), + .qpt_support = BIT(IB_QPT_RC), + .flags = RVT_OPERATION_ATOMIC, +}, + +[IB_WR_ATOMIC_CMP_AND_SWP] = { + .length = sizeof(struct ib_atomic_wr), + .qpt_support = BIT(IB_QPT_RC), + .flags = RVT_OPERATION_ATOMIC | RVT_OPERATION_ATOMIC_SGE, +}, + +[IB_WR_ATOMIC_FETCH_AND_ADD] = { + .length = sizeof(struct ib_atomic_wr), + .qpt_support = BIT(IB_QPT_RC), + .flags = RVT_OPERATION_ATOMIC | RVT_OPERATION_ATOMIC_SGE, +}, + +[IB_WR_RDMA_WRITE_WITH_IMM] = { + .length = sizeof(struct ib_rdma_wr), + .qpt_support = BIT(IB_QPT_UC) | BIT(IB_QPT_RC), +}, + +[IB_WR_SEND] = { + .length = sizeof(struct ib_send_wr), + .qpt_support = BIT(IB_QPT_UD) | BIT(IB_QPT_SMI) | BIT(IB_QPT_GSI) | + BIT(IB_QPT_UC) | BIT(IB_QPT_RC), +}, + +[IB_WR_SEND_WITH_IMM] = { + .length = sizeof(struct ib_send_wr), + .qpt_support = BIT(IB_QPT_UD) | BIT(IB_QPT_SMI) | BIT(IB_QPT_GSI) | + BIT(IB_QPT_UC) | BIT(IB_QPT_RC), +}, + +}; + +static void get_map_page(struct rvt_qpn_table *qpt, struct rvt_qpn_map *map) +{ + unsigned long page = get_zeroed_page(GFP_KERNEL); + + /* + * Free the page if someone raced with us installing it. + */ + + spin_lock(&qpt->lock); + if (map->page) + free_page(page); + else + map->page = (void *)page; + spin_unlock(&qpt->lock); +} + +/* + * Allocate the next available QPN or + * zero/one for QP type IB_QPT_SMI/IB_QPT_GSI. + */ +int qib_alloc_qpn(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt, + enum ib_qp_type type, u32 port) +{ + u32 i, offset, max_scan, qpn; + struct rvt_qpn_map *map; + u32 ret; + struct qib_ibdev *verbs_dev = container_of(rdi, struct qib_ibdev, rdi); + struct qib_devdata *dd = container_of(verbs_dev, struct qib_devdata, + verbs_dev); + u16 qpt_mask = dd->qpn_mask; + + if (type == IB_QPT_SMI || type == IB_QPT_GSI) { + u32 n; + + ret = type == IB_QPT_GSI; + n = 1 << (ret + 2 * (port - 1)); + spin_lock(&qpt->lock); + if (qpt->flags & n) + ret = -EINVAL; + else + qpt->flags |= n; + spin_unlock(&qpt->lock); + goto bail; + } + + qpn = qpt->last + 2; + if (qpn >= RVT_QPN_MAX) + qpn = 2; + if (qpt_mask && ((qpn & qpt_mask) >> 1) >= dd->n_krcv_queues) + qpn = (qpn | qpt_mask) + 2; + offset = qpn & RVT_BITS_PER_PAGE_MASK; + map = &qpt->map[qpn / RVT_BITS_PER_PAGE]; + max_scan = qpt->nmaps - !offset; + for (i = 0;;) { + if (unlikely(!map->page)) { + get_map_page(qpt, map); + if (unlikely(!map->page)) + break; + } + do { + if (!test_and_set_bit(offset, map->page)) { + qpt->last = qpn; + ret = qpn; + goto bail; + } + offset = find_next_offset(qpt, map, offset, + dd->n_krcv_queues, qpt_mask); + qpn = mk_qpn(qpt, map, offset); + /* + * This test differs from alloc_pidmap(). + * If find_next_offset() does find a zero + * bit, we don't need to check for QPN + * wrapping around past our starting QPN. + * We just need to be sure we don't loop + * forever. + */ + } while (offset < RVT_BITS_PER_PAGE && qpn < RVT_QPN_MAX); + /* + * In order to keep the number of pages allocated to a + * minimum, we scan the all existing pages before increasing + * the size of the bitmap table. + */ + if (++i > max_scan) { + if (qpt->nmaps == RVT_QPNMAP_ENTRIES) + break; + map = &qpt->map[qpt->nmaps++]; + offset = 0; + } else if (map < &qpt->map[qpt->nmaps]) { + ++map; + offset = 0; + } else { + map = &qpt->map[0]; + offset = 2; + } + qpn = mk_qpn(qpt, map, offset); + } + + ret = -ENOMEM; + +bail: + return ret; +} + +/* + * qib_free_all_qps - check for QPs still in use + */ +unsigned qib_free_all_qps(struct rvt_dev_info *rdi) +{ + struct qib_ibdev *verbs_dev = container_of(rdi, struct qib_ibdev, rdi); + struct qib_devdata *dd = container_of(verbs_dev, struct qib_devdata, + verbs_dev); + unsigned n, qp_inuse = 0; + + for (n = 0; n < dd->num_pports; n++) { + struct qib_ibport *ibp = &dd->pport[n].ibport_data; + + rcu_read_lock(); + if (rcu_dereference(ibp->rvp.qp[0])) + qp_inuse++; + if (rcu_dereference(ibp->rvp.qp[1])) + qp_inuse++; + rcu_read_unlock(); + } + return qp_inuse; +} + +void qib_notify_qp_reset(struct rvt_qp *qp) +{ + struct qib_qp_priv *priv = qp->priv; + + atomic_set(&priv->s_dma_busy, 0); +} + +void qib_notify_error_qp(struct rvt_qp *qp) +{ + struct qib_qp_priv *priv = qp->priv; + struct qib_ibdev *dev = to_idev(qp->ibqp.device); + + spin_lock(&dev->rdi.pending_lock); + if (!list_empty(&priv->iowait) && !(qp->s_flags & RVT_S_BUSY)) { + qp->s_flags &= ~RVT_S_ANY_WAIT_IO; + list_del_init(&priv->iowait); + } + spin_unlock(&dev->rdi.pending_lock); + + if (!(qp->s_flags & RVT_S_BUSY)) { + qp->s_hdrwords = 0; + if (qp->s_rdma_mr) { + rvt_put_mr(qp->s_rdma_mr); + qp->s_rdma_mr = NULL; + } + if (priv->s_tx) { + qib_put_txreq(priv->s_tx); + priv->s_tx = NULL; + } + } +} + +static int mtu_to_enum(u32 mtu) +{ + int enum_mtu; + + switch (mtu) { + case 4096: + enum_mtu = IB_MTU_4096; + break; + case 2048: + enum_mtu = IB_MTU_2048; + break; + case 1024: + enum_mtu = IB_MTU_1024; + break; + case 512: + enum_mtu = IB_MTU_512; + break; + case 256: + enum_mtu = IB_MTU_256; + break; + default: + enum_mtu = IB_MTU_2048; + } + return enum_mtu; +} + +int qib_get_pmtu_from_attr(struct rvt_dev_info *rdi, struct rvt_qp *qp, + struct ib_qp_attr *attr) +{ + int mtu, pmtu, pidx = qp->port_num - 1; + struct qib_ibdev *verbs_dev = container_of(rdi, struct qib_ibdev, rdi); + struct qib_devdata *dd = container_of(verbs_dev, struct qib_devdata, + verbs_dev); + mtu = ib_mtu_enum_to_int(attr->path_mtu); + if (mtu == -1) + return -EINVAL; + + if (mtu > dd->pport[pidx].ibmtu) + pmtu = mtu_to_enum(dd->pport[pidx].ibmtu); + else + pmtu = attr->path_mtu; + return pmtu; +} + +int qib_mtu_to_path_mtu(u32 mtu) +{ + return mtu_to_enum(mtu); +} + +u32 qib_mtu_from_qp(struct rvt_dev_info *rdi, struct rvt_qp *qp, u32 pmtu) +{ + return ib_mtu_enum_to_int(pmtu); +} + +void *qib_qp_priv_alloc(struct rvt_dev_info *rdi, struct rvt_qp *qp) +{ + struct qib_qp_priv *priv; + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) + return ERR_PTR(-ENOMEM); + priv->owner = qp; + + priv->s_hdr = kzalloc(sizeof(*priv->s_hdr), GFP_KERNEL); + if (!priv->s_hdr) { + kfree(priv); + return ERR_PTR(-ENOMEM); + } + init_waitqueue_head(&priv->wait_dma); + INIT_WORK(&priv->s_work, _qib_do_send); + INIT_LIST_HEAD(&priv->iowait); + + return priv; +} + +void qib_qp_priv_free(struct rvt_dev_info *rdi, struct rvt_qp *qp) +{ + struct qib_qp_priv *priv = qp->priv; + + kfree(priv->s_hdr); + kfree(priv); +} + +void qib_stop_send_queue(struct rvt_qp *qp) +{ + struct qib_qp_priv *priv = qp->priv; + + cancel_work_sync(&priv->s_work); +} + +void qib_quiesce_qp(struct rvt_qp *qp) +{ + struct qib_qp_priv *priv = qp->priv; + + wait_event(priv->wait_dma, !atomic_read(&priv->s_dma_busy)); + if (priv->s_tx) { + qib_put_txreq(priv->s_tx); + priv->s_tx = NULL; + } +} + +void qib_flush_qp_waiters(struct rvt_qp *qp) +{ + struct qib_qp_priv *priv = qp->priv; + struct qib_ibdev *dev = to_idev(qp->ibqp.device); + + spin_lock(&dev->rdi.pending_lock); + if (!list_empty(&priv->iowait)) + list_del_init(&priv->iowait); + spin_unlock(&dev->rdi.pending_lock); +} + +/** + * qib_check_send_wqe - validate wr/wqe + * @qp: The qp + * @wqe: The built wqe + * @call_send: Determine if the send should be posted or scheduled + * + * Returns 0 on success, -EINVAL on failure + */ +int qib_check_send_wqe(struct rvt_qp *qp, + struct rvt_swqe *wqe, bool *call_send) +{ + struct rvt_ah *ah; + + switch (qp->ibqp.qp_type) { + case IB_QPT_RC: + case IB_QPT_UC: + if (wqe->length > 0x80000000U) + return -EINVAL; + if (wqe->length > qp->pmtu) + *call_send = false; + break; + case IB_QPT_SMI: + case IB_QPT_GSI: + case IB_QPT_UD: + ah = rvt_get_swqe_ah(wqe); + if (wqe->length > (1 << ah->log_pmtu)) + return -EINVAL; + /* progress hint */ + *call_send = true; + break; + default: + break; + } + return 0; +} + +#ifdef CONFIG_DEBUG_FS + +static const char * const qp_type_str[] = { + "SMI", "GSI", "RC", "UC", "UD", +}; + +/** + * qib_qp_iter_print - print information to seq_file + * @s: the seq_file + * @iter: the iterator + */ +void qib_qp_iter_print(struct seq_file *s, struct rvt_qp_iter *iter) +{ + struct rvt_swqe *wqe; + struct rvt_qp *qp = iter->qp; + struct qib_qp_priv *priv = qp->priv; + + wqe = rvt_get_swqe_ptr(qp, qp->s_last); + seq_printf(s, + "N %d QP%u %s %u %u %u f=%x %u %u %u %u %u PSN %x %x %x %x %x (%u %u %u %u %u %u) QP%u LID %x\n", + iter->n, + qp->ibqp.qp_num, + qp_type_str[qp->ibqp.qp_type], + qp->state, + wqe->wr.opcode, + qp->s_hdrwords, + qp->s_flags, + atomic_read(&priv->s_dma_busy), + !list_empty(&priv->iowait), + qp->timeout, + wqe->ssn, + qp->s_lsn, + qp->s_last_psn, + qp->s_psn, qp->s_next_psn, + qp->s_sending_psn, qp->s_sending_hpsn, + qp->s_last, qp->s_acked, qp->s_cur, + qp->s_tail, qp->s_head, qp->s_size, + qp->remote_qpn, + rdma_ah_get_dlid(&qp->remote_ah_attr)); +} + +#endif diff --git a/drivers/infiniband/hw/qib/qib_qsfp.c b/drivers/infiniband/hw/qib/qib_qsfp.c new file mode 100644 index 000000000..295d40a83 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_qsfp.c @@ -0,0 +1,549 @@ +/* + * Copyright (c) 2006, 2007, 2008, 2009 QLogic Corporation. All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/delay.h> +#include <linux/pci.h> +#include <linux/vmalloc.h> + +#include "qib.h" +#include "qib_qsfp.h" + +/* + * QSFP support for ib_qib driver, using "Two Wire Serial Interface" driver + * in qib_twsi.c + */ +#define QSFP_MAX_RETRY 4 + +static int qsfp_read(struct qib_pportdata *ppd, int addr, void *bp, int len) +{ + struct qib_devdata *dd = ppd->dd; + u32 out, mask; + int ret, cnt, pass = 0; + int stuck = 0; + u8 *buff = bp; + + ret = mutex_lock_interruptible(&dd->eep_lock); + if (ret) + goto no_unlock; + + if (dd->twsi_eeprom_dev == QIB_TWSI_NO_DEV) { + ret = -ENXIO; + goto bail; + } + + /* + * We presume, if we are called at all, that this board has + * QSFP. This is on the same i2c chain as the legacy parts, + * but only responds if the module is selected via GPIO pins. + * Further, there are very long setup and hold requirements + * on MODSEL. + */ + mask = QSFP_GPIO_MOD_SEL_N | QSFP_GPIO_MOD_RST_N | QSFP_GPIO_LP_MODE; + out = QSFP_GPIO_MOD_RST_N | QSFP_GPIO_LP_MODE; + if (ppd->hw_pidx) { + mask <<= QSFP_GPIO_PORT2_SHIFT; + out <<= QSFP_GPIO_PORT2_SHIFT; + } + + dd->f_gpio_mod(dd, out, mask, mask); + + /* + * Module could take up to 2 Msec to respond to MOD_SEL, and there + * is no way to tell if it is ready, so we must wait. + */ + msleep(20); + + /* Make sure TWSI bus is in sane state. */ + ret = qib_twsi_reset(dd); + if (ret) { + qib_dev_porterr(dd, ppd->port, + "QSFP interface Reset for read failed\n"); + ret = -EIO; + stuck = 1; + goto deselect; + } + + /* All QSFP modules are at A0 */ + + cnt = 0; + while (cnt < len) { + unsigned in_page; + int wlen = len - cnt; + + in_page = addr % QSFP_PAGESIZE; + if ((in_page + wlen) > QSFP_PAGESIZE) + wlen = QSFP_PAGESIZE - in_page; + ret = qib_twsi_blk_rd(dd, QSFP_DEV, addr, buff + cnt, wlen); + /* Some QSFP's fail first try. Retry as experiment */ + if (ret && cnt == 0 && ++pass < QSFP_MAX_RETRY) + continue; + if (ret) { + /* qib_twsi_blk_rd() 1 for error, else 0 */ + ret = -EIO; + goto deselect; + } + addr += wlen; + cnt += wlen; + } + ret = cnt; + +deselect: + /* + * Module could take up to 10 uSec after transfer before + * ready to respond to MOD_SEL negation, and there is no way + * to tell if it is ready, so we must wait. + */ + udelay(10); + /* set QSFP MODSEL, RST. LP all high */ + dd->f_gpio_mod(dd, mask, mask, mask); + + /* + * Module could take up to 2 Msec to respond to MOD_SEL + * going away, and there is no way to tell if it is ready. + * so we must wait. + */ + if (stuck) + qib_dev_err(dd, "QSFP interface bus stuck non-idle\n"); + + if (pass >= QSFP_MAX_RETRY && ret) + qib_dev_porterr(dd, ppd->port, "QSFP failed even retrying\n"); + else if (pass) + qib_dev_porterr(dd, ppd->port, "QSFP retries: %d\n", pass); + + msleep(20); + +bail: + mutex_unlock(&dd->eep_lock); + +no_unlock: + return ret; +} + +/* + * qsfp_write + * We do not ordinarily write the QSFP, but this is needed to select + * the page on non-flat QSFPs, and possibly later unusual cases + */ +static int qib_qsfp_write(struct qib_pportdata *ppd, int addr, void *bp, + int len) +{ + struct qib_devdata *dd = ppd->dd; + u32 out, mask; + int ret, cnt; + u8 *buff = bp; + + ret = mutex_lock_interruptible(&dd->eep_lock); + if (ret) + goto no_unlock; + + if (dd->twsi_eeprom_dev == QIB_TWSI_NO_DEV) { + ret = -ENXIO; + goto bail; + } + + /* + * We presume, if we are called at all, that this board has + * QSFP. This is on the same i2c chain as the legacy parts, + * but only responds if the module is selected via GPIO pins. + * Further, there are very long setup and hold requirements + * on MODSEL. + */ + mask = QSFP_GPIO_MOD_SEL_N | QSFP_GPIO_MOD_RST_N | QSFP_GPIO_LP_MODE; + out = QSFP_GPIO_MOD_RST_N | QSFP_GPIO_LP_MODE; + if (ppd->hw_pidx) { + mask <<= QSFP_GPIO_PORT2_SHIFT; + out <<= QSFP_GPIO_PORT2_SHIFT; + } + dd->f_gpio_mod(dd, out, mask, mask); + + /* + * Module could take up to 2 Msec to respond to MOD_SEL, + * and there is no way to tell if it is ready, so we must wait. + */ + msleep(20); + + /* Make sure TWSI bus is in sane state. */ + ret = qib_twsi_reset(dd); + if (ret) { + qib_dev_porterr(dd, ppd->port, + "QSFP interface Reset for write failed\n"); + ret = -EIO; + goto deselect; + } + + /* All QSFP modules are at A0 */ + + cnt = 0; + while (cnt < len) { + unsigned in_page; + int wlen = len - cnt; + + in_page = addr % QSFP_PAGESIZE; + if ((in_page + wlen) > QSFP_PAGESIZE) + wlen = QSFP_PAGESIZE - in_page; + ret = qib_twsi_blk_wr(dd, QSFP_DEV, addr, buff + cnt, wlen); + if (ret) { + /* qib_twsi_blk_wr() 1 for error, else 0 */ + ret = -EIO; + goto deselect; + } + addr += wlen; + cnt += wlen; + } + ret = cnt; + +deselect: + /* + * Module could take up to 10 uSec after transfer before + * ready to respond to MOD_SEL negation, and there is no way + * to tell if it is ready, so we must wait. + */ + udelay(10); + /* set QSFP MODSEL, RST, LP high */ + dd->f_gpio_mod(dd, mask, mask, mask); + /* + * Module could take up to 2 Msec to respond to MOD_SEL + * going away, and there is no way to tell if it is ready. + * so we must wait. + */ + msleep(20); + +bail: + mutex_unlock(&dd->eep_lock); + +no_unlock: + return ret; +} + +/* + * For validation, we want to check the checksums, even of the + * fields we do not otherwise use. This function reads the bytes from + * <first> to <next-1> and returns the 8lsbs of the sum, or <0 for errors + */ +static int qsfp_cks(struct qib_pportdata *ppd, int first, int next) +{ + int ret; + u16 cks; + u8 bval; + + cks = 0; + while (first < next) { + ret = qsfp_read(ppd, first, &bval, 1); + if (ret < 0) + goto bail; + cks += bval; + ++first; + } + ret = cks & 0xFF; +bail: + return ret; + +} + +int qib_refresh_qsfp_cache(struct qib_pportdata *ppd, struct qib_qsfp_cache *cp) +{ + int ret; + int idx; + u16 cks; + u8 peek[4]; + + /* ensure sane contents on invalid reads, for cable swaps */ + memset(cp, 0, sizeof(*cp)); + + if (!qib_qsfp_mod_present(ppd)) { + ret = -ENODEV; + goto bail; + } + + ret = qsfp_read(ppd, 0, peek, 3); + if (ret < 0) + goto bail; + if ((peek[0] & 0xFE) != 0x0C) + qib_dev_porterr(ppd->dd, ppd->port, + "QSFP byte0 is 0x%02X, S/B 0x0C/D\n", peek[0]); + + if ((peek[2] & 4) == 0) { + /* + * If cable is paged, rather than "flat memory", we need to + * set the page to zero, Even if it already appears to be zero. + */ + u8 poke = 0; + + ret = qib_qsfp_write(ppd, 127, &poke, 1); + udelay(50); + if (ret != 1) { + qib_dev_porterr(ppd->dd, ppd->port, + "Failed QSFP Page set\n"); + goto bail; + } + } + + ret = qsfp_read(ppd, QSFP_MOD_ID_OFFS, &cp->id, 1); + if (ret < 0) + goto bail; + if ((cp->id & 0xFE) != 0x0C) + qib_dev_porterr(ppd->dd, ppd->port, + "QSFP ID byte is 0x%02X, S/B 0x0C/D\n", cp->id); + cks = cp->id; + + ret = qsfp_read(ppd, QSFP_MOD_PWR_OFFS, &cp->pwr, 1); + if (ret < 0) + goto bail; + cks += cp->pwr; + + ret = qsfp_cks(ppd, QSFP_MOD_PWR_OFFS + 1, QSFP_MOD_LEN_OFFS); + if (ret < 0) + goto bail; + cks += ret; + + ret = qsfp_read(ppd, QSFP_MOD_LEN_OFFS, &cp->len, 1); + if (ret < 0) + goto bail; + cks += cp->len; + + ret = qsfp_read(ppd, QSFP_MOD_TECH_OFFS, &cp->tech, 1); + if (ret < 0) + goto bail; + cks += cp->tech; + + ret = qsfp_read(ppd, QSFP_VEND_OFFS, &cp->vendor, QSFP_VEND_LEN); + if (ret < 0) + goto bail; + for (idx = 0; idx < QSFP_VEND_LEN; ++idx) + cks += cp->vendor[idx]; + + ret = qsfp_read(ppd, QSFP_IBXCV_OFFS, &cp->xt_xcv, 1); + if (ret < 0) + goto bail; + cks += cp->xt_xcv; + + ret = qsfp_read(ppd, QSFP_VOUI_OFFS, &cp->oui, QSFP_VOUI_LEN); + if (ret < 0) + goto bail; + for (idx = 0; idx < QSFP_VOUI_LEN; ++idx) + cks += cp->oui[idx]; + + ret = qsfp_read(ppd, QSFP_PN_OFFS, &cp->partnum, QSFP_PN_LEN); + if (ret < 0) + goto bail; + for (idx = 0; idx < QSFP_PN_LEN; ++idx) + cks += cp->partnum[idx]; + + ret = qsfp_read(ppd, QSFP_REV_OFFS, &cp->rev, QSFP_REV_LEN); + if (ret < 0) + goto bail; + for (idx = 0; idx < QSFP_REV_LEN; ++idx) + cks += cp->rev[idx]; + + ret = qsfp_read(ppd, QSFP_ATTEN_OFFS, &cp->atten, QSFP_ATTEN_LEN); + if (ret < 0) + goto bail; + for (idx = 0; idx < QSFP_ATTEN_LEN; ++idx) + cks += cp->atten[idx]; + + ret = qsfp_cks(ppd, QSFP_ATTEN_OFFS + QSFP_ATTEN_LEN, QSFP_CC_OFFS); + if (ret < 0) + goto bail; + cks += ret; + + cks &= 0xFF; + ret = qsfp_read(ppd, QSFP_CC_OFFS, &cp->cks1, 1); + if (ret < 0) + goto bail; + if (cks != cp->cks1) + qib_dev_porterr(ppd->dd, ppd->port, + "QSFP cks1 is %02X, computed %02X\n", cp->cks1, + cks); + + /* Second checksum covers 192 to (serial, date, lot) */ + ret = qsfp_cks(ppd, QSFP_CC_OFFS + 1, QSFP_SN_OFFS); + if (ret < 0) + goto bail; + cks = ret; + + ret = qsfp_read(ppd, QSFP_SN_OFFS, &cp->serial, QSFP_SN_LEN); + if (ret < 0) + goto bail; + for (idx = 0; idx < QSFP_SN_LEN; ++idx) + cks += cp->serial[idx]; + + ret = qsfp_read(ppd, QSFP_DATE_OFFS, &cp->date, QSFP_DATE_LEN); + if (ret < 0) + goto bail; + for (idx = 0; idx < QSFP_DATE_LEN; ++idx) + cks += cp->date[idx]; + + ret = qsfp_read(ppd, QSFP_LOT_OFFS, &cp->lot, QSFP_LOT_LEN); + if (ret < 0) + goto bail; + for (idx = 0; idx < QSFP_LOT_LEN; ++idx) + cks += cp->lot[idx]; + + ret = qsfp_cks(ppd, QSFP_LOT_OFFS + QSFP_LOT_LEN, QSFP_CC_EXT_OFFS); + if (ret < 0) + goto bail; + cks += ret; + + ret = qsfp_read(ppd, QSFP_CC_EXT_OFFS, &cp->cks2, 1); + if (ret < 0) + goto bail; + cks &= 0xFF; + if (cks != cp->cks2) + qib_dev_porterr(ppd->dd, ppd->port, + "QSFP cks2 is %02X, computed %02X\n", cp->cks2, + cks); + return 0; + +bail: + cp->id = 0; + return ret; +} + +const char * const qib_qsfp_devtech[16] = { + "850nm VCSEL", "1310nm VCSEL", "1550nm VCSEL", "1310nm FP", + "1310nm DFB", "1550nm DFB", "1310nm EML", "1550nm EML", + "Cu Misc", "1490nm DFB", "Cu NoEq", "Cu Eq", + "Undef", "Cu Active BothEq", "Cu FarEq", "Cu NearEq" +}; + +#define QSFP_DUMP_CHUNK 16 /* Holds longest string */ +#define QSFP_DEFAULT_HDR_CNT 224 + +static const char *pwr_codes = "1.5W2.0W2.5W3.5W"; + +int qib_qsfp_mod_present(struct qib_pportdata *ppd) +{ + u32 mask; + int ret; + + mask = QSFP_GPIO_MOD_PRS_N << + (ppd->hw_pidx * QSFP_GPIO_PORT2_SHIFT); + ret = ppd->dd->f_gpio_mod(ppd->dd, 0, 0, 0); + + return !((ret & mask) >> + ((ppd->hw_pidx * QSFP_GPIO_PORT2_SHIFT) + 3)); +} + +/* + * Initialize structures that control access to QSFP. Called once per port + * on cards that support QSFP. + */ +void qib_qsfp_init(struct qib_qsfp_data *qd, + void (*fevent)(struct work_struct *)) +{ + u32 mask, highs; + + struct qib_devdata *dd = qd->ppd->dd; + + /* Initialize work struct for later QSFP events */ + INIT_WORK(&qd->work, fevent); + + /* + * Later, we may want more validation. For now, just set up pins and + * blip reset. If module is present, call qib_refresh_qsfp_cache(), + * to do further init. + */ + mask = QSFP_GPIO_MOD_SEL_N | QSFP_GPIO_MOD_RST_N | QSFP_GPIO_LP_MODE; + highs = mask - QSFP_GPIO_MOD_RST_N; + if (qd->ppd->hw_pidx) { + mask <<= QSFP_GPIO_PORT2_SHIFT; + highs <<= QSFP_GPIO_PORT2_SHIFT; + } + dd->f_gpio_mod(dd, highs, mask, mask); + udelay(20); /* Generous RST dwell */ + + dd->f_gpio_mod(dd, mask, mask, mask); +} + +int qib_qsfp_dump(struct qib_pportdata *ppd, char *buf, int len) +{ + struct qib_qsfp_cache cd; + u8 bin_buff[QSFP_DUMP_CHUNK]; + char lenstr[6]; + int sofar, ret; + int bidx = 0; + + sofar = 0; + ret = qib_refresh_qsfp_cache(ppd, &cd); + if (ret < 0) + goto bail; + + lenstr[0] = ' '; + lenstr[1] = '\0'; + if (QSFP_IS_CU(cd.tech)) + sprintf(lenstr, "%dM ", cd.len); + + sofar += scnprintf(buf + sofar, len - sofar, "PWR:%.3sW\n", pwr_codes + + (QSFP_PWR(cd.pwr) * 4)); + + sofar += scnprintf(buf + sofar, len - sofar, "TECH:%s%s\n", lenstr, + qib_qsfp_devtech[cd.tech >> 4]); + + sofar += scnprintf(buf + sofar, len - sofar, "Vendor:%.*s\n", + QSFP_VEND_LEN, cd.vendor); + + sofar += scnprintf(buf + sofar, len - sofar, "OUI:%06X\n", + QSFP_OUI(cd.oui)); + + sofar += scnprintf(buf + sofar, len - sofar, "Part#:%.*s\n", + QSFP_PN_LEN, cd.partnum); + sofar += scnprintf(buf + sofar, len - sofar, "Rev:%.*s\n", + QSFP_REV_LEN, cd.rev); + if (QSFP_IS_CU(cd.tech)) + sofar += scnprintf(buf + sofar, len - sofar, "Atten:%d, %d\n", + QSFP_ATTEN_SDR(cd.atten), + QSFP_ATTEN_DDR(cd.atten)); + sofar += scnprintf(buf + sofar, len - sofar, "Serial:%.*s\n", + QSFP_SN_LEN, cd.serial); + sofar += scnprintf(buf + sofar, len - sofar, "Date:%.*s\n", + QSFP_DATE_LEN, cd.date); + sofar += scnprintf(buf + sofar, len - sofar, "Lot:%.*s\n", + QSFP_LOT_LEN, cd.lot); + + while (bidx < QSFP_DEFAULT_HDR_CNT) { + int iidx; + + ret = qsfp_read(ppd, bidx, bin_buff, QSFP_DUMP_CHUNK); + if (ret < 0) + goto bail; + for (iidx = 0; iidx < ret; ++iidx) { + sofar += scnprintf(buf + sofar, len-sofar, " %02X", + bin_buff[iidx]); + } + sofar += scnprintf(buf + sofar, len - sofar, "\n"); + bidx += QSFP_DUMP_CHUNK; + } + ret = sofar; +bail: + return ret; +} diff --git a/drivers/infiniband/hw/qib/qib_qsfp.h b/drivers/infiniband/hw/qib/qib_qsfp.h new file mode 100644 index 000000000..ad8dbd6ac --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_qsfp.h @@ -0,0 +1,188 @@ +/* + * Copyright (c) 2006, 2007, 2008, 2009 QLogic Corporation. All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +/* QSFP support common definitions, for ib_qib driver */ + +#define QSFP_DEV 0xA0 +#define QSFP_PWR_LAG_MSEC 2000 +#define QSFP_MODPRS_LAG_MSEC 20 + +/* + * Below are masks for various QSFP signals, for Port 1. + * Port2 equivalents are shifted by QSFP_GPIO_PORT2_SHIFT. + * _N means asserted low + */ +#define QSFP_GPIO_MOD_SEL_N (4) +#define QSFP_GPIO_MOD_PRS_N (8) +#define QSFP_GPIO_INT_N (0x10) +#define QSFP_GPIO_MOD_RST_N (0x20) +#define QSFP_GPIO_LP_MODE (0x40) +#define QSFP_GPIO_PORT2_SHIFT 5 + +#define QSFP_PAGESIZE 128 +/* Defined fields that QLogic requires of qualified cables */ +/* Byte 0 is Identifier, not checked */ +/* Byte 1 is reserved "status MSB" */ +/* Byte 2 is "status LSB" We only care that D2 "Flat Mem" is set. */ +/* + * Rest of first 128 not used, although 127 is reserved for page select + * if module is not "Flat memory". + */ +/* Byte 128 is Identifier: must be 0x0c for QSFP, or 0x0d for QSFP+ */ +#define QSFP_MOD_ID_OFFS 128 +/* + * Byte 129 is "Extended Identifier". We only care about D7,D6: Power class + * 0:1.5W, 1:2.0W, 2:2.5W, 3:3.5W + */ +#define QSFP_MOD_PWR_OFFS 129 +/* Byte 130 is Connector type. Not QLogic req'd */ +/* Bytes 131..138 are Transceiver types, bit maps for various tech, none IB */ +/* Byte 139 is encoding. code 0x01 is 8b10b. Not QLogic req'd */ +/* byte 140 is nominal bit-rate, in units of 100Mbits/sec Not QLogic req'd */ +/* Byte 141 is Extended Rate Select. Not QLogic req'd */ +/* Bytes 142..145 are lengths for various fiber types. Not QLogic req'd */ +/* Byte 146 is length for Copper. Units of 1 meter */ +#define QSFP_MOD_LEN_OFFS 146 +/* + * Byte 147 is Device technology. D0..3 not Qlogc req'd + * D4..7 select from 15 choices, translated by table: + */ +#define QSFP_MOD_TECH_OFFS 147 +extern const char *const qib_qsfp_devtech[16]; +/* Active Equalization includes fiber, copper full EQ, and copper near Eq */ +#define QSFP_IS_ACTIVE(tech) ((0xA2FF >> ((tech) >> 4)) & 1) +/* Active Equalization includes fiber, copper full EQ, and copper far Eq */ +#define QSFP_IS_ACTIVE_FAR(tech) ((0x32FF >> ((tech) >> 4)) & 1) +/* Attenuation should be valid for copper other than full/near Eq */ +#define QSFP_HAS_ATTEN(tech) ((0x4D00 >> ((tech) >> 4)) & 1) +/* Length is only valid if technology is "copper" */ +#define QSFP_IS_CU(tech) ((0xED00 >> ((tech) >> 4)) & 1) +#define QSFP_TECH_1490 9 + +#define QSFP_OUI(oui) (((unsigned)oui[0] << 16) | ((unsigned)oui[1] << 8) | \ + oui[2]) +#define QSFP_OUI_AMPHENOL 0x415048 +#define QSFP_OUI_FINISAR 0x009065 +#define QSFP_OUI_GORE 0x002177 + +/* Bytes 148..163 are Vendor Name, Left-justified Blank-filled */ +#define QSFP_VEND_OFFS 148 +#define QSFP_VEND_LEN 16 +/* Byte 164 is IB Extended tranceiver codes Bits D0..3 are SDR,DDR,QDR,EDR */ +#define QSFP_IBXCV_OFFS 164 +/* Bytes 165..167 are Vendor OUI number */ +#define QSFP_VOUI_OFFS 165 +#define QSFP_VOUI_LEN 3 +/* Bytes 168..183 are Vendor Part Number, string */ +#define QSFP_PN_OFFS 168 +#define QSFP_PN_LEN 16 +/* Bytes 184,185 are Vendor Rev. Left Justified, Blank-filled */ +#define QSFP_REV_OFFS 184 +#define QSFP_REV_LEN 2 +/* + * Bytes 186,187 are Wavelength, if Optical. Not Qlogic req'd + * If copper, they are attenuation in dB: + * Byte 186 is at 2.5Gb/sec (SDR), Byte 187 at 5.0Gb/sec (DDR) + */ +#define QSFP_ATTEN_OFFS 186 +#define QSFP_ATTEN_LEN 2 +/* Bytes 188,189 are Wavelength tolerance, not QLogic req'd */ +/* Byte 190 is Max Case Temp. Not QLogic req'd */ +/* Byte 191 is LSB of sum of bytes 128..190. Not QLogic req'd */ +#define QSFP_CC_OFFS 191 +/* Bytes 192..195 are Options implemented in qsfp. Not Qlogic req'd */ +/* Bytes 196..211 are Serial Number, String */ +#define QSFP_SN_OFFS 196 +#define QSFP_SN_LEN 16 +/* Bytes 212..219 are date-code YYMMDD (MM==1 for Jan) */ +#define QSFP_DATE_OFFS 212 +#define QSFP_DATE_LEN 6 +/* Bytes 218,219 are optional lot-code, string */ +#define QSFP_LOT_OFFS 218 +#define QSFP_LOT_LEN 2 +/* Bytes 220, 221 indicate monitoring options, Not QLogic req'd */ +/* Byte 223 is LSB of sum of bytes 192..222 */ +#define QSFP_CC_EXT_OFFS 223 + +/* + * struct qib_qsfp_data encapsulates state of QSFP device for one port. + * it will be part of port-chip-specific data if a board supports QSFP. + * + * Since multiple board-types use QSFP, and their pport_data structs + * differ (in the chip-specific section), we need a pointer to its head. + * + * Avoiding premature optimization, we will have one work_struct per port, + * and let the (increasingly inaccurately named) eep_lock arbitrate + * access to common resources. + * + */ + +/* + * Hold the parts of the onboard EEPROM that we care about, so we aren't + * coonstantly bit-boffing + */ +struct qib_qsfp_cache { + u8 id; /* must be 0x0C or 0x0D; 0 indicates invalid EEPROM read */ + u8 pwr; /* in D6,7 */ + u8 len; /* in meters, Cu only */ + u8 tech; + char vendor[QSFP_VEND_LEN]; + u8 xt_xcv; /* Ext. tranceiver codes, 4 lsbs are IB speed supported */ + u8 oui[QSFP_VOUI_LEN]; + u8 partnum[QSFP_PN_LEN]; + u8 rev[QSFP_REV_LEN]; + u8 atten[QSFP_ATTEN_LEN]; + u8 cks1; /* Checksum of bytes 128..190 */ + u8 serial[QSFP_SN_LEN]; + u8 date[QSFP_DATE_LEN]; + u8 lot[QSFP_LOT_LEN]; + u8 cks2; /* Checsum of bytes 192..222 */ +}; + +#define QSFP_PWR(pbyte) (((pbyte) >> 6) & 3) +#define QSFP_ATTEN_SDR(attenarray) (attenarray[0]) +#define QSFP_ATTEN_DDR(attenarray) (attenarray[1]) + +struct qib_qsfp_data { + /* Helps to find our way */ + struct qib_pportdata *ppd; + struct work_struct work; + struct qib_qsfp_cache cache; + unsigned long t_insert; + u8 modpresent; +}; + +extern int qib_refresh_qsfp_cache(struct qib_pportdata *ppd, + struct qib_qsfp_cache *cp); +extern int qib_qsfp_mod_present(struct qib_pportdata *ppd); +extern void qib_qsfp_init(struct qib_qsfp_data *qd, + void (*fevent)(struct work_struct *)); diff --git a/drivers/infiniband/hw/qib/qib_rc.c b/drivers/infiniband/hw/qib/qib_rc.c new file mode 100644 index 000000000..a1c20ffb4 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_rc.c @@ -0,0 +1,2131 @@ +/* + * Copyright (c) 2006, 2007, 2008, 2009 QLogic Corporation. All rights reserved. + * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/io.h> + +#include "qib.h" + +/* cut down ridiculously long IB macro names */ +#define OP(x) IB_OPCODE_RC_##x + + +static u32 restart_sge(struct rvt_sge_state *ss, struct rvt_swqe *wqe, + u32 psn, u32 pmtu) +{ + u32 len; + + len = ((psn - wqe->psn) & QIB_PSN_MASK) * pmtu; + return rvt_restart_sge(ss, wqe, len); +} + +/** + * qib_make_rc_ack - construct a response packet (ACK, NAK, or RDMA read) + * @dev: the device for this QP + * @qp: a pointer to the QP + * @ohdr: a pointer to the IB header being constructed + * @pmtu: the path MTU + * + * Return 1 if constructed; otherwise, return 0. + * Note that we are in the responder's side of the QP context. + * Note the QP s_lock must be held. + */ +static int qib_make_rc_ack(struct qib_ibdev *dev, struct rvt_qp *qp, + struct ib_other_headers *ohdr, u32 pmtu) +{ + struct rvt_ack_entry *e; + u32 hwords; + u32 len; + u32 bth0; + u32 bth2; + + /* Don't send an ACK if we aren't supposed to. */ + if (!(ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK)) + goto bail; + + /* header size in 32-bit words LRH+BTH = (8+12)/4. */ + hwords = 5; + + switch (qp->s_ack_state) { + case OP(RDMA_READ_RESPONSE_LAST): + case OP(RDMA_READ_RESPONSE_ONLY): + e = &qp->s_ack_queue[qp->s_tail_ack_queue]; + if (e->rdma_sge.mr) { + rvt_put_mr(e->rdma_sge.mr); + e->rdma_sge.mr = NULL; + } + fallthrough; + case OP(ATOMIC_ACKNOWLEDGE): + /* + * We can increment the tail pointer now that the last + * response has been sent instead of only being + * constructed. + */ + if (++qp->s_tail_ack_queue > QIB_MAX_RDMA_ATOMIC) + qp->s_tail_ack_queue = 0; + fallthrough; + case OP(SEND_ONLY): + case OP(ACKNOWLEDGE): + /* Check for no next entry in the queue. */ + if (qp->r_head_ack_queue == qp->s_tail_ack_queue) { + if (qp->s_flags & RVT_S_ACK_PENDING) + goto normal; + goto bail; + } + + e = &qp->s_ack_queue[qp->s_tail_ack_queue]; + if (e->opcode == OP(RDMA_READ_REQUEST)) { + /* + * If a RDMA read response is being resent and + * we haven't seen the duplicate request yet, + * then stop sending the remaining responses the + * responder has seen until the requester resends it. + */ + len = e->rdma_sge.sge_length; + if (len && !e->rdma_sge.mr) { + qp->s_tail_ack_queue = qp->r_head_ack_queue; + goto bail; + } + /* Copy SGE state in case we need to resend */ + qp->s_rdma_mr = e->rdma_sge.mr; + if (qp->s_rdma_mr) + rvt_get_mr(qp->s_rdma_mr); + qp->s_ack_rdma_sge.sge = e->rdma_sge; + qp->s_ack_rdma_sge.num_sge = 1; + qp->s_cur_sge = &qp->s_ack_rdma_sge; + if (len > pmtu) { + len = pmtu; + qp->s_ack_state = OP(RDMA_READ_RESPONSE_FIRST); + } else { + qp->s_ack_state = OP(RDMA_READ_RESPONSE_ONLY); + e->sent = 1; + } + ohdr->u.aeth = rvt_compute_aeth(qp); + hwords++; + qp->s_ack_rdma_psn = e->psn; + bth2 = qp->s_ack_rdma_psn++ & QIB_PSN_MASK; + } else { + /* COMPARE_SWAP or FETCH_ADD */ + qp->s_cur_sge = NULL; + len = 0; + qp->s_ack_state = OP(ATOMIC_ACKNOWLEDGE); + ohdr->u.at.aeth = rvt_compute_aeth(qp); + ib_u64_put(e->atomic_data, &ohdr->u.at.atomic_ack_eth); + hwords += sizeof(ohdr->u.at) / sizeof(u32); + bth2 = e->psn & QIB_PSN_MASK; + e->sent = 1; + } + bth0 = qp->s_ack_state << 24; + break; + + case OP(RDMA_READ_RESPONSE_FIRST): + qp->s_ack_state = OP(RDMA_READ_RESPONSE_MIDDLE); + fallthrough; + case OP(RDMA_READ_RESPONSE_MIDDLE): + qp->s_cur_sge = &qp->s_ack_rdma_sge; + qp->s_rdma_mr = qp->s_ack_rdma_sge.sge.mr; + if (qp->s_rdma_mr) + rvt_get_mr(qp->s_rdma_mr); + len = qp->s_ack_rdma_sge.sge.sge_length; + if (len > pmtu) + len = pmtu; + else { + ohdr->u.aeth = rvt_compute_aeth(qp); + hwords++; + qp->s_ack_state = OP(RDMA_READ_RESPONSE_LAST); + e = &qp->s_ack_queue[qp->s_tail_ack_queue]; + e->sent = 1; + } + bth0 = qp->s_ack_state << 24; + bth2 = qp->s_ack_rdma_psn++ & QIB_PSN_MASK; + break; + + default: +normal: + /* + * Send a regular ACK. + * Set the s_ack_state so we wait until after sending + * the ACK before setting s_ack_state to ACKNOWLEDGE + * (see above). + */ + qp->s_ack_state = OP(SEND_ONLY); + qp->s_flags &= ~RVT_S_ACK_PENDING; + qp->s_cur_sge = NULL; + if (qp->s_nak_state) + ohdr->u.aeth = + cpu_to_be32((qp->r_msn & IB_MSN_MASK) | + (qp->s_nak_state << + IB_AETH_CREDIT_SHIFT)); + else + ohdr->u.aeth = rvt_compute_aeth(qp); + hwords++; + len = 0; + bth0 = OP(ACKNOWLEDGE) << 24; + bth2 = qp->s_ack_psn & QIB_PSN_MASK; + } + qp->s_rdma_ack_cnt++; + qp->s_hdrwords = hwords; + qp->s_cur_size = len; + qib_make_ruc_header(qp, ohdr, bth0, bth2); + return 1; + +bail: + qp->s_ack_state = OP(ACKNOWLEDGE); + qp->s_flags &= ~(RVT_S_RESP_PENDING | RVT_S_ACK_PENDING); + return 0; +} + +/** + * qib_make_rc_req - construct a request packet (SEND, RDMA r/w, ATOMIC) + * @qp: a pointer to the QP + * @flags: unused + * + * Assumes the s_lock is held. + * + * Return 1 if constructed; otherwise, return 0. + */ +int qib_make_rc_req(struct rvt_qp *qp, unsigned long *flags) +{ + struct qib_qp_priv *priv = qp->priv; + struct qib_ibdev *dev = to_idev(qp->ibqp.device); + struct ib_other_headers *ohdr; + struct rvt_sge_state *ss; + struct rvt_swqe *wqe; + u32 hwords; + u32 len; + u32 bth0; + u32 bth2; + u32 pmtu = qp->pmtu; + char newreq; + int ret = 0; + int delta; + + ohdr = &priv->s_hdr->u.oth; + if (rdma_ah_get_ah_flags(&qp->remote_ah_attr) & IB_AH_GRH) + ohdr = &priv->s_hdr->u.l.oth; + + /* Sending responses has higher priority over sending requests. */ + if ((qp->s_flags & RVT_S_RESP_PENDING) && + qib_make_rc_ack(dev, qp, ohdr, pmtu)) + goto done; + + if (!(ib_rvt_state_ops[qp->state] & RVT_PROCESS_SEND_OK)) { + if (!(ib_rvt_state_ops[qp->state] & RVT_FLUSH_SEND)) + goto bail; + /* We are in the error state, flush the work request. */ + if (qp->s_last == READ_ONCE(qp->s_head)) + goto bail; + /* If DMAs are in progress, we can't flush immediately. */ + if (atomic_read(&priv->s_dma_busy)) { + qp->s_flags |= RVT_S_WAIT_DMA; + goto bail; + } + wqe = rvt_get_swqe_ptr(qp, qp->s_last); + rvt_send_complete(qp, wqe, qp->s_last != qp->s_acked ? + IB_WC_SUCCESS : IB_WC_WR_FLUSH_ERR); + /* will get called again */ + goto done; + } + + if (qp->s_flags & (RVT_S_WAIT_RNR | RVT_S_WAIT_ACK)) + goto bail; + + if (qib_cmp24(qp->s_psn, qp->s_sending_hpsn) <= 0) { + if (qib_cmp24(qp->s_sending_psn, qp->s_sending_hpsn) <= 0) { + qp->s_flags |= RVT_S_WAIT_PSN; + goto bail; + } + qp->s_sending_psn = qp->s_psn; + qp->s_sending_hpsn = qp->s_psn - 1; + } + + /* header size in 32-bit words LRH+BTH = (8+12)/4. */ + hwords = 5; + bth0 = 0; + + /* Send a request. */ + wqe = rvt_get_swqe_ptr(qp, qp->s_cur); + switch (qp->s_state) { + default: + if (!(ib_rvt_state_ops[qp->state] & RVT_PROCESS_NEXT_SEND_OK)) + goto bail; + /* + * Resend an old request or start a new one. + * + * We keep track of the current SWQE so that + * we don't reset the "furthest progress" state + * if we need to back up. + */ + newreq = 0; + if (qp->s_cur == qp->s_tail) { + /* Check if send work queue is empty. */ + if (qp->s_tail == READ_ONCE(qp->s_head)) + goto bail; + /* + * If a fence is requested, wait for previous + * RDMA read and atomic operations to finish. + */ + if ((wqe->wr.send_flags & IB_SEND_FENCE) && + qp->s_num_rd_atomic) { + qp->s_flags |= RVT_S_WAIT_FENCE; + goto bail; + } + newreq = 1; + qp->s_psn = wqe->psn; + } + /* + * Note that we have to be careful not to modify the + * original work request since we may need to resend + * it. + */ + len = wqe->length; + ss = &qp->s_sge; + bth2 = qp->s_psn & QIB_PSN_MASK; + switch (wqe->wr.opcode) { + case IB_WR_SEND: + case IB_WR_SEND_WITH_IMM: + /* If no credit, return. */ + if (!rvt_rc_credit_avail(qp, wqe)) + goto bail; + if (len > pmtu) { + qp->s_state = OP(SEND_FIRST); + len = pmtu; + break; + } + if (wqe->wr.opcode == IB_WR_SEND) + qp->s_state = OP(SEND_ONLY); + else { + qp->s_state = OP(SEND_ONLY_WITH_IMMEDIATE); + /* Immediate data comes after the BTH */ + ohdr->u.imm_data = wqe->wr.ex.imm_data; + hwords += 1; + } + if (wqe->wr.send_flags & IB_SEND_SOLICITED) + bth0 |= IB_BTH_SOLICITED; + bth2 |= IB_BTH_REQ_ACK; + if (++qp->s_cur == qp->s_size) + qp->s_cur = 0; + break; + + case IB_WR_RDMA_WRITE: + if (newreq && !(qp->s_flags & RVT_S_UNLIMITED_CREDIT)) + qp->s_lsn++; + goto no_flow_control; + case IB_WR_RDMA_WRITE_WITH_IMM: + /* If no credit, return. */ + if (!rvt_rc_credit_avail(qp, wqe)) + goto bail; +no_flow_control: + ohdr->u.rc.reth.vaddr = + cpu_to_be64(wqe->rdma_wr.remote_addr); + ohdr->u.rc.reth.rkey = + cpu_to_be32(wqe->rdma_wr.rkey); + ohdr->u.rc.reth.length = cpu_to_be32(len); + hwords += sizeof(struct ib_reth) / sizeof(u32); + if (len > pmtu) { + qp->s_state = OP(RDMA_WRITE_FIRST); + len = pmtu; + break; + } + if (wqe->rdma_wr.wr.opcode == IB_WR_RDMA_WRITE) + qp->s_state = OP(RDMA_WRITE_ONLY); + else { + qp->s_state = OP(RDMA_WRITE_ONLY_WITH_IMMEDIATE); + /* Immediate data comes after RETH */ + ohdr->u.rc.imm_data = + wqe->rdma_wr.wr.ex.imm_data; + hwords += 1; + if (wqe->rdma_wr.wr.send_flags & IB_SEND_SOLICITED) + bth0 |= IB_BTH_SOLICITED; + } + bth2 |= IB_BTH_REQ_ACK; + if (++qp->s_cur == qp->s_size) + qp->s_cur = 0; + break; + + case IB_WR_RDMA_READ: + /* + * Don't allow more operations to be started + * than the QP limits allow. + */ + if (newreq) { + if (qp->s_num_rd_atomic >= + qp->s_max_rd_atomic) { + qp->s_flags |= RVT_S_WAIT_RDMAR; + goto bail; + } + qp->s_num_rd_atomic++; + if (!(qp->s_flags & RVT_S_UNLIMITED_CREDIT)) + qp->s_lsn++; + } + + ohdr->u.rc.reth.vaddr = + cpu_to_be64(wqe->rdma_wr.remote_addr); + ohdr->u.rc.reth.rkey = + cpu_to_be32(wqe->rdma_wr.rkey); + ohdr->u.rc.reth.length = cpu_to_be32(len); + qp->s_state = OP(RDMA_READ_REQUEST); + hwords += sizeof(ohdr->u.rc.reth) / sizeof(u32); + ss = NULL; + len = 0; + bth2 |= IB_BTH_REQ_ACK; + if (++qp->s_cur == qp->s_size) + qp->s_cur = 0; + break; + + case IB_WR_ATOMIC_CMP_AND_SWP: + case IB_WR_ATOMIC_FETCH_AND_ADD: + /* + * Don't allow more operations to be started + * than the QP limits allow. + */ + if (newreq) { + if (qp->s_num_rd_atomic >= + qp->s_max_rd_atomic) { + qp->s_flags |= RVT_S_WAIT_RDMAR; + goto bail; + } + qp->s_num_rd_atomic++; + if (!(qp->s_flags & RVT_S_UNLIMITED_CREDIT)) + qp->s_lsn++; + } + if (wqe->atomic_wr.wr.opcode == IB_WR_ATOMIC_CMP_AND_SWP) { + qp->s_state = OP(COMPARE_SWAP); + put_ib_ateth_swap(wqe->atomic_wr.swap, + &ohdr->u.atomic_eth); + put_ib_ateth_compare(wqe->atomic_wr.compare_add, + &ohdr->u.atomic_eth); + } else { + qp->s_state = OP(FETCH_ADD); + put_ib_ateth_swap(wqe->atomic_wr.compare_add, + &ohdr->u.atomic_eth); + put_ib_ateth_compare(0, &ohdr->u.atomic_eth); + } + put_ib_ateth_vaddr(wqe->atomic_wr.remote_addr, + &ohdr->u.atomic_eth); + ohdr->u.atomic_eth.rkey = cpu_to_be32( + wqe->atomic_wr.rkey); + hwords += sizeof(struct ib_atomic_eth) / sizeof(u32); + ss = NULL; + len = 0; + bth2 |= IB_BTH_REQ_ACK; + if (++qp->s_cur == qp->s_size) + qp->s_cur = 0; + break; + + default: + goto bail; + } + qp->s_sge.sge = wqe->sg_list[0]; + qp->s_sge.sg_list = wqe->sg_list + 1; + qp->s_sge.num_sge = wqe->wr.num_sge; + qp->s_sge.total_len = wqe->length; + qp->s_len = wqe->length; + if (newreq) { + qp->s_tail++; + if (qp->s_tail >= qp->s_size) + qp->s_tail = 0; + } + if (wqe->wr.opcode == IB_WR_RDMA_READ) + qp->s_psn = wqe->lpsn + 1; + else + qp->s_psn++; + break; + + case OP(RDMA_READ_RESPONSE_FIRST): + /* + * qp->s_state is normally set to the opcode of the + * last packet constructed for new requests and therefore + * is never set to RDMA read response. + * RDMA_READ_RESPONSE_FIRST is used by the ACK processing + * thread to indicate a SEND needs to be restarted from an + * earlier PSN without interferring with the sending thread. + * See qib_restart_rc(). + */ + qp->s_len = restart_sge(&qp->s_sge, wqe, qp->s_psn, pmtu); + fallthrough; + case OP(SEND_FIRST): + qp->s_state = OP(SEND_MIDDLE); + fallthrough; + case OP(SEND_MIDDLE): + bth2 = qp->s_psn++ & QIB_PSN_MASK; + ss = &qp->s_sge; + len = qp->s_len; + if (len > pmtu) { + len = pmtu; + break; + } + if (wqe->wr.opcode == IB_WR_SEND) + qp->s_state = OP(SEND_LAST); + else { + qp->s_state = OP(SEND_LAST_WITH_IMMEDIATE); + /* Immediate data comes after the BTH */ + ohdr->u.imm_data = wqe->wr.ex.imm_data; + hwords += 1; + } + if (wqe->wr.send_flags & IB_SEND_SOLICITED) + bth0 |= IB_BTH_SOLICITED; + bth2 |= IB_BTH_REQ_ACK; + qp->s_cur++; + if (qp->s_cur >= qp->s_size) + qp->s_cur = 0; + break; + + case OP(RDMA_READ_RESPONSE_LAST): + /* + * qp->s_state is normally set to the opcode of the + * last packet constructed for new requests and therefore + * is never set to RDMA read response. + * RDMA_READ_RESPONSE_LAST is used by the ACK processing + * thread to indicate a RDMA write needs to be restarted from + * an earlier PSN without interferring with the sending thread. + * See qib_restart_rc(). + */ + qp->s_len = restart_sge(&qp->s_sge, wqe, qp->s_psn, pmtu); + fallthrough; + case OP(RDMA_WRITE_FIRST): + qp->s_state = OP(RDMA_WRITE_MIDDLE); + fallthrough; + case OP(RDMA_WRITE_MIDDLE): + bth2 = qp->s_psn++ & QIB_PSN_MASK; + ss = &qp->s_sge; + len = qp->s_len; + if (len > pmtu) { + len = pmtu; + break; + } + if (wqe->wr.opcode == IB_WR_RDMA_WRITE) + qp->s_state = OP(RDMA_WRITE_LAST); + else { + qp->s_state = OP(RDMA_WRITE_LAST_WITH_IMMEDIATE); + /* Immediate data comes after the BTH */ + ohdr->u.imm_data = wqe->wr.ex.imm_data; + hwords += 1; + if (wqe->wr.send_flags & IB_SEND_SOLICITED) + bth0 |= IB_BTH_SOLICITED; + } + bth2 |= IB_BTH_REQ_ACK; + qp->s_cur++; + if (qp->s_cur >= qp->s_size) + qp->s_cur = 0; + break; + + case OP(RDMA_READ_RESPONSE_MIDDLE): + /* + * qp->s_state is normally set to the opcode of the + * last packet constructed for new requests and therefore + * is never set to RDMA read response. + * RDMA_READ_RESPONSE_MIDDLE is used by the ACK processing + * thread to indicate a RDMA read needs to be restarted from + * an earlier PSN without interferring with the sending thread. + * See qib_restart_rc(). + */ + len = ((qp->s_psn - wqe->psn) & QIB_PSN_MASK) * pmtu; + ohdr->u.rc.reth.vaddr = + cpu_to_be64(wqe->rdma_wr.remote_addr + len); + ohdr->u.rc.reth.rkey = + cpu_to_be32(wqe->rdma_wr.rkey); + ohdr->u.rc.reth.length = cpu_to_be32(wqe->length - len); + qp->s_state = OP(RDMA_READ_REQUEST); + hwords += sizeof(ohdr->u.rc.reth) / sizeof(u32); + bth2 = (qp->s_psn & QIB_PSN_MASK) | IB_BTH_REQ_ACK; + qp->s_psn = wqe->lpsn + 1; + ss = NULL; + len = 0; + qp->s_cur++; + if (qp->s_cur == qp->s_size) + qp->s_cur = 0; + break; + } + qp->s_sending_hpsn = bth2; + delta = (((int) bth2 - (int) wqe->psn) << 8) >> 8; + if (delta && delta % QIB_PSN_CREDIT == 0) + bth2 |= IB_BTH_REQ_ACK; + if (qp->s_flags & RVT_S_SEND_ONE) { + qp->s_flags &= ~RVT_S_SEND_ONE; + qp->s_flags |= RVT_S_WAIT_ACK; + bth2 |= IB_BTH_REQ_ACK; + } + qp->s_len -= len; + qp->s_hdrwords = hwords; + qp->s_cur_sge = ss; + qp->s_cur_size = len; + qib_make_ruc_header(qp, ohdr, bth0 | (qp->s_state << 24), bth2); +done: + return 1; +bail: + qp->s_flags &= ~RVT_S_BUSY; + return ret; +} + +/** + * qib_send_rc_ack - Construct an ACK packet and send it + * @qp: a pointer to the QP + * + * This is called from qib_rc_rcv() and qib_kreceive(). + * Note that RDMA reads and atomics are handled in the + * send side QP state and tasklet. + */ +void qib_send_rc_ack(struct rvt_qp *qp) +{ + struct qib_devdata *dd = dd_from_ibdev(qp->ibqp.device); + struct qib_ibport *ibp = to_iport(qp->ibqp.device, qp->port_num); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + u64 pbc; + u16 lrh0; + u32 bth0; + u32 hwords; + u32 pbufn; + u32 __iomem *piobuf; + struct ib_header hdr; + struct ib_other_headers *ohdr; + u32 control; + unsigned long flags; + + spin_lock_irqsave(&qp->s_lock, flags); + + if (!(ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK)) + goto unlock; + + /* Don't send ACK or NAK if a RDMA read or atomic is pending. */ + if ((qp->s_flags & RVT_S_RESP_PENDING) || qp->s_rdma_ack_cnt) + goto queue_ack; + + /* Construct the header with s_lock held so APM doesn't change it. */ + ohdr = &hdr.u.oth; + lrh0 = QIB_LRH_BTH; + /* header size in 32-bit words LRH+BTH+AETH = (8+12+4)/4. */ + hwords = 6; + if (unlikely(rdma_ah_get_ah_flags(&qp->remote_ah_attr) & + IB_AH_GRH)) { + hwords += qib_make_grh(ibp, &hdr.u.l.grh, + rdma_ah_read_grh(&qp->remote_ah_attr), + hwords, 0); + ohdr = &hdr.u.l.oth; + lrh0 = QIB_LRH_GRH; + } + /* read pkey_index w/o lock (its atomic) */ + bth0 = qib_get_pkey(ibp, qp->s_pkey_index) | (OP(ACKNOWLEDGE) << 24); + if (qp->s_mig_state == IB_MIG_MIGRATED) + bth0 |= IB_BTH_MIG_REQ; + if (qp->r_nak_state) + ohdr->u.aeth = cpu_to_be32((qp->r_msn & IB_MSN_MASK) | + (qp->r_nak_state << + IB_AETH_CREDIT_SHIFT)); + else + ohdr->u.aeth = rvt_compute_aeth(qp); + lrh0 |= ibp->sl_to_vl[rdma_ah_get_sl(&qp->remote_ah_attr)] << 12 | + rdma_ah_get_sl(&qp->remote_ah_attr) << 4; + hdr.lrh[0] = cpu_to_be16(lrh0); + hdr.lrh[1] = cpu_to_be16(rdma_ah_get_dlid(&qp->remote_ah_attr)); + hdr.lrh[2] = cpu_to_be16(hwords + SIZE_OF_CRC); + hdr.lrh[3] = cpu_to_be16(ppd->lid | + rdma_ah_get_path_bits(&qp->remote_ah_attr)); + ohdr->bth[0] = cpu_to_be32(bth0); + ohdr->bth[1] = cpu_to_be32(qp->remote_qpn); + ohdr->bth[2] = cpu_to_be32(qp->r_ack_psn & QIB_PSN_MASK); + + spin_unlock_irqrestore(&qp->s_lock, flags); + + /* Don't try to send ACKs if the link isn't ACTIVE */ + if (!(ppd->lflags & QIBL_LINKACTIVE)) + goto done; + + control = dd->f_setpbc_control(ppd, hwords + SIZE_OF_CRC, + qp->s_srate, lrh0 >> 12); + /* length is + 1 for the control dword */ + pbc = ((u64) control << 32) | (hwords + 1); + + piobuf = dd->f_getsendbuf(ppd, pbc, &pbufn); + if (!piobuf) { + /* + * We are out of PIO buffers at the moment. + * Pass responsibility for sending the ACK to the + * send tasklet so that when a PIO buffer becomes + * available, the ACK is sent ahead of other outgoing + * packets. + */ + spin_lock_irqsave(&qp->s_lock, flags); + goto queue_ack; + } + + /* + * Write the pbc. + * We have to flush after the PBC for correctness + * on some cpus or WC buffer can be written out of order. + */ + writeq(pbc, piobuf); + + if (dd->flags & QIB_PIO_FLUSH_WC) { + u32 *hdrp = (u32 *) &hdr; + + qib_flush_wc(); + qib_pio_copy(piobuf + 2, hdrp, hwords - 1); + qib_flush_wc(); + __raw_writel(hdrp[hwords - 1], piobuf + hwords + 1); + } else + qib_pio_copy(piobuf + 2, (u32 *) &hdr, hwords); + + if (dd->flags & QIB_USE_SPCL_TRIG) { + u32 spcl_off = (pbufn >= dd->piobcnt2k) ? 2047 : 1023; + + qib_flush_wc(); + __raw_writel(0xaebecede, piobuf + spcl_off); + } + + qib_flush_wc(); + qib_sendbuf_done(dd, pbufn); + + this_cpu_inc(ibp->pmastats->n_unicast_xmit); + goto done; + +queue_ack: + if (ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK) { + this_cpu_inc(*ibp->rvp.rc_qacks); + qp->s_flags |= RVT_S_ACK_PENDING | RVT_S_RESP_PENDING; + qp->s_nak_state = qp->r_nak_state; + qp->s_ack_psn = qp->r_ack_psn; + + /* Schedule the send tasklet. */ + qib_schedule_send(qp); + } +unlock: + spin_unlock_irqrestore(&qp->s_lock, flags); +done: + return; +} + +/** + * reset_psn - reset the QP state to send starting from PSN + * @qp: the QP + * @psn: the packet sequence number to restart at + * + * This is called from qib_rc_rcv() to process an incoming RC ACK + * for the given QP. + * Called at interrupt level with the QP s_lock held. + */ +static void reset_psn(struct rvt_qp *qp, u32 psn) +{ + u32 n = qp->s_acked; + struct rvt_swqe *wqe = rvt_get_swqe_ptr(qp, n); + u32 opcode; + + qp->s_cur = n; + + /* + * If we are starting the request from the beginning, + * let the normal send code handle initialization. + */ + if (qib_cmp24(psn, wqe->psn) <= 0) { + qp->s_state = OP(SEND_LAST); + goto done; + } + + /* Find the work request opcode corresponding to the given PSN. */ + opcode = wqe->wr.opcode; + for (;;) { + int diff; + + if (++n == qp->s_size) + n = 0; + if (n == qp->s_tail) + break; + wqe = rvt_get_swqe_ptr(qp, n); + diff = qib_cmp24(psn, wqe->psn); + if (diff < 0) + break; + qp->s_cur = n; + /* + * If we are starting the request from the beginning, + * let the normal send code handle initialization. + */ + if (diff == 0) { + qp->s_state = OP(SEND_LAST); + goto done; + } + opcode = wqe->wr.opcode; + } + + /* + * Set the state to restart in the middle of a request. + * Don't change the s_sge, s_cur_sge, or s_cur_size. + * See qib_make_rc_req(). + */ + switch (opcode) { + case IB_WR_SEND: + case IB_WR_SEND_WITH_IMM: + qp->s_state = OP(RDMA_READ_RESPONSE_FIRST); + break; + + case IB_WR_RDMA_WRITE: + case IB_WR_RDMA_WRITE_WITH_IMM: + qp->s_state = OP(RDMA_READ_RESPONSE_LAST); + break; + + case IB_WR_RDMA_READ: + qp->s_state = OP(RDMA_READ_RESPONSE_MIDDLE); + break; + + default: + /* + * This case shouldn't happen since its only + * one PSN per req. + */ + qp->s_state = OP(SEND_LAST); + } +done: + qp->s_psn = psn; + /* + * Set RVT_S_WAIT_PSN as qib_rc_complete() may start the timer + * asynchronously before the send tasklet can get scheduled. + * Doing it in qib_make_rc_req() is too late. + */ + if ((qib_cmp24(qp->s_psn, qp->s_sending_hpsn) <= 0) && + (qib_cmp24(qp->s_sending_psn, qp->s_sending_hpsn) <= 0)) + qp->s_flags |= RVT_S_WAIT_PSN; +} + +/* + * Back up requester to resend the last un-ACKed request. + * The QP r_lock and s_lock should be held and interrupts disabled. + */ +void qib_restart_rc(struct rvt_qp *qp, u32 psn, int wait) +{ + struct rvt_swqe *wqe = rvt_get_swqe_ptr(qp, qp->s_acked); + struct qib_ibport *ibp; + + if (qp->s_retry == 0) { + if (qp->s_mig_state == IB_MIG_ARMED) { + qib_migrate_qp(qp); + qp->s_retry = qp->s_retry_cnt; + } else if (qp->s_last == qp->s_acked) { + rvt_send_complete(qp, wqe, IB_WC_RETRY_EXC_ERR); + rvt_error_qp(qp, IB_WC_WR_FLUSH_ERR); + return; + } else /* XXX need to handle delayed completion */ + return; + } else + qp->s_retry--; + + ibp = to_iport(qp->ibqp.device, qp->port_num); + if (wqe->wr.opcode == IB_WR_RDMA_READ) + ibp->rvp.n_rc_resends++; + else + ibp->rvp.n_rc_resends += (qp->s_psn - psn) & QIB_PSN_MASK; + + qp->s_flags &= ~(RVT_S_WAIT_FENCE | RVT_S_WAIT_RDMAR | + RVT_S_WAIT_SSN_CREDIT | RVT_S_WAIT_PSN | + RVT_S_WAIT_ACK); + if (wait) + qp->s_flags |= RVT_S_SEND_ONE; + reset_psn(qp, psn); +} + +/* + * Set qp->s_sending_psn to the next PSN after the given one. + * This would be psn+1 except when RDMA reads are present. + */ +static void reset_sending_psn(struct rvt_qp *qp, u32 psn) +{ + struct rvt_swqe *wqe; + u32 n = qp->s_last; + + /* Find the work request corresponding to the given PSN. */ + for (;;) { + wqe = rvt_get_swqe_ptr(qp, n); + if (qib_cmp24(psn, wqe->lpsn) <= 0) { + if (wqe->wr.opcode == IB_WR_RDMA_READ) + qp->s_sending_psn = wqe->lpsn + 1; + else + qp->s_sending_psn = psn + 1; + break; + } + if (++n == qp->s_size) + n = 0; + if (n == qp->s_tail) + break; + } +} + +/* + * This should be called with the QP s_lock held and interrupts disabled. + */ +void qib_rc_send_complete(struct rvt_qp *qp, struct ib_header *hdr) +{ + struct ib_other_headers *ohdr; + struct rvt_swqe *wqe; + u32 opcode; + u32 psn; + + if (!(ib_rvt_state_ops[qp->state] & RVT_SEND_OR_FLUSH_OR_RECV_OK)) + return; + + /* Find out where the BTH is */ + if ((be16_to_cpu(hdr->lrh[0]) & 3) == QIB_LRH_BTH) + ohdr = &hdr->u.oth; + else + ohdr = &hdr->u.l.oth; + + opcode = be32_to_cpu(ohdr->bth[0]) >> 24; + if (opcode >= OP(RDMA_READ_RESPONSE_FIRST) && + opcode <= OP(ATOMIC_ACKNOWLEDGE)) { + WARN_ON(!qp->s_rdma_ack_cnt); + qp->s_rdma_ack_cnt--; + return; + } + + psn = be32_to_cpu(ohdr->bth[2]); + reset_sending_psn(qp, psn); + + /* + * Start timer after a packet requesting an ACK has been sent and + * there are still requests that haven't been acked. + */ + if ((psn & IB_BTH_REQ_ACK) && qp->s_acked != qp->s_tail && + !(qp->s_flags & (RVT_S_TIMER | RVT_S_WAIT_RNR | RVT_S_WAIT_PSN)) && + (ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK)) + rvt_add_retry_timer(qp); + + while (qp->s_last != qp->s_acked) { + wqe = rvt_get_swqe_ptr(qp, qp->s_last); + if (qib_cmp24(wqe->lpsn, qp->s_sending_psn) >= 0 && + qib_cmp24(qp->s_sending_psn, qp->s_sending_hpsn) <= 0) + break; + rvt_qp_complete_swqe(qp, + wqe, + ib_qib_wc_opcode[wqe->wr.opcode], + IB_WC_SUCCESS); + } + /* + * If we were waiting for sends to complete before resending, + * and they are now complete, restart sending. + */ + if (qp->s_flags & RVT_S_WAIT_PSN && + qib_cmp24(qp->s_sending_psn, qp->s_sending_hpsn) > 0) { + qp->s_flags &= ~RVT_S_WAIT_PSN; + qp->s_sending_psn = qp->s_psn; + qp->s_sending_hpsn = qp->s_psn - 1; + qib_schedule_send(qp); + } +} + +static inline void update_last_psn(struct rvt_qp *qp, u32 psn) +{ + qp->s_last_psn = psn; +} + +/* + * Generate a SWQE completion. + * This is similar to qib_send_complete but has to check to be sure + * that the SGEs are not being referenced if the SWQE is being resent. + */ +static struct rvt_swqe *do_rc_completion(struct rvt_qp *qp, + struct rvt_swqe *wqe, + struct qib_ibport *ibp) +{ + /* + * Don't decrement refcount and don't generate a + * completion if the SWQE is being resent until the send + * is finished. + */ + if (qib_cmp24(wqe->lpsn, qp->s_sending_psn) < 0 || + qib_cmp24(qp->s_sending_psn, qp->s_sending_hpsn) > 0) + rvt_qp_complete_swqe(qp, + wqe, + ib_qib_wc_opcode[wqe->wr.opcode], + IB_WC_SUCCESS); + else + this_cpu_inc(*ibp->rvp.rc_delayed_comp); + + qp->s_retry = qp->s_retry_cnt; + update_last_psn(qp, wqe->lpsn); + + /* + * If we are completing a request which is in the process of + * being resent, we can stop resending it since we know the + * responder has already seen it. + */ + if (qp->s_acked == qp->s_cur) { + if (++qp->s_cur >= qp->s_size) + qp->s_cur = 0; + qp->s_acked = qp->s_cur; + wqe = rvt_get_swqe_ptr(qp, qp->s_cur); + if (qp->s_acked != qp->s_tail) { + qp->s_state = OP(SEND_LAST); + qp->s_psn = wqe->psn; + } + } else { + if (++qp->s_acked >= qp->s_size) + qp->s_acked = 0; + if (qp->state == IB_QPS_SQD && qp->s_acked == qp->s_cur) + qp->s_draining = 0; + wqe = rvt_get_swqe_ptr(qp, qp->s_acked); + } + return wqe; +} + +/* + * do_rc_ack - process an incoming RC ACK + * @qp: the QP the ACK came in on + * @psn: the packet sequence number of the ACK + * @opcode: the opcode of the request that resulted in the ACK + * + * This is called from qib_rc_rcv_resp() to process an incoming RC ACK + * for the given QP. + * Called at interrupt level with the QP s_lock held. + * Returns 1 if OK, 0 if current operation should be aborted (NAK). + */ +static int do_rc_ack(struct rvt_qp *qp, u32 aeth, u32 psn, int opcode, + u64 val, struct qib_ctxtdata *rcd) +{ + struct qib_ibport *ibp; + enum ib_wc_status status; + struct rvt_swqe *wqe; + int ret = 0; + u32 ack_psn; + int diff; + + /* + * Note that NAKs implicitly ACK outstanding SEND and RDMA write + * requests and implicitly NAK RDMA read and atomic requests issued + * before the NAK'ed request. The MSN won't include the NAK'ed + * request but will include an ACK'ed request(s). + */ + ack_psn = psn; + if (aeth >> IB_AETH_NAK_SHIFT) + ack_psn--; + wqe = rvt_get_swqe_ptr(qp, qp->s_acked); + ibp = to_iport(qp->ibqp.device, qp->port_num); + + /* + * The MSN might be for a later WQE than the PSN indicates so + * only complete WQEs that the PSN finishes. + */ + while ((diff = qib_cmp24(ack_psn, wqe->lpsn)) >= 0) { + /* + * RDMA_READ_RESPONSE_ONLY is a special case since + * we want to generate completion events for everything + * before the RDMA read, copy the data, then generate + * the completion for the read. + */ + if (wqe->wr.opcode == IB_WR_RDMA_READ && + opcode == OP(RDMA_READ_RESPONSE_ONLY) && + diff == 0) { + ret = 1; + goto bail; + } + /* + * If this request is a RDMA read or atomic, and the ACK is + * for a later operation, this ACK NAKs the RDMA read or + * atomic. In other words, only a RDMA_READ_LAST or ONLY + * can ACK a RDMA read and likewise for atomic ops. Note + * that the NAK case can only happen if relaxed ordering is + * used and requests are sent after an RDMA read or atomic + * is sent but before the response is received. + */ + if ((wqe->wr.opcode == IB_WR_RDMA_READ && + (opcode != OP(RDMA_READ_RESPONSE_LAST) || diff != 0)) || + ((wqe->wr.opcode == IB_WR_ATOMIC_CMP_AND_SWP || + wqe->wr.opcode == IB_WR_ATOMIC_FETCH_AND_ADD) && + (opcode != OP(ATOMIC_ACKNOWLEDGE) || diff != 0))) { + /* Retry this request. */ + if (!(qp->r_flags & RVT_R_RDMAR_SEQ)) { + qp->r_flags |= RVT_R_RDMAR_SEQ; + qib_restart_rc(qp, qp->s_last_psn + 1, 0); + if (list_empty(&qp->rspwait)) { + qp->r_flags |= RVT_R_RSP_SEND; + rvt_get_qp(qp); + list_add_tail(&qp->rspwait, + &rcd->qp_wait_list); + } + } + /* + * No need to process the ACK/NAK since we are + * restarting an earlier request. + */ + goto bail; + } + if (wqe->wr.opcode == IB_WR_ATOMIC_CMP_AND_SWP || + wqe->wr.opcode == IB_WR_ATOMIC_FETCH_AND_ADD) { + u64 *vaddr = wqe->sg_list[0].vaddr; + *vaddr = val; + } + if (qp->s_num_rd_atomic && + (wqe->wr.opcode == IB_WR_RDMA_READ || + wqe->wr.opcode == IB_WR_ATOMIC_CMP_AND_SWP || + wqe->wr.opcode == IB_WR_ATOMIC_FETCH_AND_ADD)) { + qp->s_num_rd_atomic--; + /* Restart sending task if fence is complete */ + if ((qp->s_flags & RVT_S_WAIT_FENCE) && + !qp->s_num_rd_atomic) { + qp->s_flags &= ~(RVT_S_WAIT_FENCE | + RVT_S_WAIT_ACK); + qib_schedule_send(qp); + } else if (qp->s_flags & RVT_S_WAIT_RDMAR) { + qp->s_flags &= ~(RVT_S_WAIT_RDMAR | + RVT_S_WAIT_ACK); + qib_schedule_send(qp); + } + } + wqe = do_rc_completion(qp, wqe, ibp); + if (qp->s_acked == qp->s_tail) + break; + } + + switch (aeth >> IB_AETH_NAK_SHIFT) { + case 0: /* ACK */ + this_cpu_inc(*ibp->rvp.rc_acks); + if (qp->s_acked != qp->s_tail) { + /* + * We are expecting more ACKs so + * reset the retransmit timer. + */ + rvt_mod_retry_timer(qp); + /* + * We can stop resending the earlier packets and + * continue with the next packet the receiver wants. + */ + if (qib_cmp24(qp->s_psn, psn) <= 0) + reset_psn(qp, psn + 1); + } else { + /* No more acks - kill all timers */ + rvt_stop_rc_timers(qp); + if (qib_cmp24(qp->s_psn, psn) <= 0) { + qp->s_state = OP(SEND_LAST); + qp->s_psn = psn + 1; + } + } + if (qp->s_flags & RVT_S_WAIT_ACK) { + qp->s_flags &= ~RVT_S_WAIT_ACK; + qib_schedule_send(qp); + } + rvt_get_credit(qp, aeth); + qp->s_rnr_retry = qp->s_rnr_retry_cnt; + qp->s_retry = qp->s_retry_cnt; + update_last_psn(qp, psn); + return 1; + + case 1: /* RNR NAK */ + ibp->rvp.n_rnr_naks++; + if (qp->s_acked == qp->s_tail) + goto bail; + if (qp->s_flags & RVT_S_WAIT_RNR) + goto bail; + if (qp->s_rnr_retry == 0) { + status = IB_WC_RNR_RETRY_EXC_ERR; + goto class_b; + } + if (qp->s_rnr_retry_cnt < 7) + qp->s_rnr_retry--; + + /* The last valid PSN is the previous PSN. */ + update_last_psn(qp, psn - 1); + + ibp->rvp.n_rc_resends += (qp->s_psn - psn) & QIB_PSN_MASK; + + reset_psn(qp, psn); + + qp->s_flags &= ~(RVT_S_WAIT_SSN_CREDIT | RVT_S_WAIT_ACK); + rvt_stop_rc_timers(qp); + rvt_add_rnr_timer(qp, aeth); + return 0; + + case 3: /* NAK */ + if (qp->s_acked == qp->s_tail) + goto bail; + /* The last valid PSN is the previous PSN. */ + update_last_psn(qp, psn - 1); + switch ((aeth >> IB_AETH_CREDIT_SHIFT) & + IB_AETH_CREDIT_MASK) { + case 0: /* PSN sequence error */ + ibp->rvp.n_seq_naks++; + /* + * Back up to the responder's expected PSN. + * Note that we might get a NAK in the middle of an + * RDMA READ response which terminates the RDMA + * READ. + */ + qib_restart_rc(qp, psn, 0); + qib_schedule_send(qp); + break; + + case 1: /* Invalid Request */ + status = IB_WC_REM_INV_REQ_ERR; + ibp->rvp.n_other_naks++; + goto class_b; + + case 2: /* Remote Access Error */ + status = IB_WC_REM_ACCESS_ERR; + ibp->rvp.n_other_naks++; + goto class_b; + + case 3: /* Remote Operation Error */ + status = IB_WC_REM_OP_ERR; + ibp->rvp.n_other_naks++; +class_b: + if (qp->s_last == qp->s_acked) { + rvt_send_complete(qp, wqe, status); + rvt_error_qp(qp, IB_WC_WR_FLUSH_ERR); + } + break; + + default: + /* Ignore other reserved NAK error codes */ + goto reserved; + } + qp->s_retry = qp->s_retry_cnt; + qp->s_rnr_retry = qp->s_rnr_retry_cnt; + goto bail; + + default: /* 2: reserved */ +reserved: + /* Ignore reserved NAK codes. */ + goto bail; + } + +bail: + rvt_stop_rc_timers(qp); + return ret; +} + +/* + * We have seen an out of sequence RDMA read middle or last packet. + * This ACKs SENDs and RDMA writes up to the first RDMA read or atomic SWQE. + */ +static void rdma_seq_err(struct rvt_qp *qp, struct qib_ibport *ibp, u32 psn, + struct qib_ctxtdata *rcd) +{ + struct rvt_swqe *wqe; + + /* Remove QP from retry timer */ + rvt_stop_rc_timers(qp); + + wqe = rvt_get_swqe_ptr(qp, qp->s_acked); + + while (qib_cmp24(psn, wqe->lpsn) > 0) { + if (wqe->wr.opcode == IB_WR_RDMA_READ || + wqe->wr.opcode == IB_WR_ATOMIC_CMP_AND_SWP || + wqe->wr.opcode == IB_WR_ATOMIC_FETCH_AND_ADD) + break; + wqe = do_rc_completion(qp, wqe, ibp); + } + + ibp->rvp.n_rdma_seq++; + qp->r_flags |= RVT_R_RDMAR_SEQ; + qib_restart_rc(qp, qp->s_last_psn + 1, 0); + if (list_empty(&qp->rspwait)) { + qp->r_flags |= RVT_R_RSP_SEND; + rvt_get_qp(qp); + list_add_tail(&qp->rspwait, &rcd->qp_wait_list); + } +} + +/** + * qib_rc_rcv_resp - process an incoming RC response packet + * @ibp: the port this packet came in on + * @ohdr: the other headers for this packet + * @data: the packet data + * @tlen: the packet length + * @qp: the QP for this packet + * @opcode: the opcode for this packet + * @psn: the packet sequence number for this packet + * @hdrsize: the header length + * @pmtu: the path MTU + * @rcd: the context pointer + * + * This is called from qib_rc_rcv() to process an incoming RC response + * packet for the given QP. + * Called at interrupt level. + */ +static void qib_rc_rcv_resp(struct qib_ibport *ibp, + struct ib_other_headers *ohdr, + void *data, u32 tlen, + struct rvt_qp *qp, + u32 opcode, + u32 psn, u32 hdrsize, u32 pmtu, + struct qib_ctxtdata *rcd) +{ + struct rvt_swqe *wqe; + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + enum ib_wc_status status; + unsigned long flags; + int diff; + u32 pad; + u32 aeth; + u64 val; + + if (opcode != OP(RDMA_READ_RESPONSE_MIDDLE)) { + /* + * If ACK'd PSN on SDMA busy list try to make progress to + * reclaim SDMA credits. + */ + if ((qib_cmp24(psn, qp->s_sending_psn) >= 0) && + (qib_cmp24(qp->s_sending_psn, qp->s_sending_hpsn) <= 0)) { + + /* + * If send tasklet not running attempt to progress + * SDMA queue. + */ + if (!(qp->s_flags & RVT_S_BUSY)) { + /* Acquire SDMA Lock */ + spin_lock_irqsave(&ppd->sdma_lock, flags); + /* Invoke sdma make progress */ + qib_sdma_make_progress(ppd); + /* Release SDMA Lock */ + spin_unlock_irqrestore(&ppd->sdma_lock, flags); + } + } + } + + spin_lock_irqsave(&qp->s_lock, flags); + if (!(ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK)) + goto ack_done; + + /* Ignore invalid responses. */ + if (qib_cmp24(psn, READ_ONCE(qp->s_next_psn)) >= 0) + goto ack_done; + + /* Ignore duplicate responses. */ + diff = qib_cmp24(psn, qp->s_last_psn); + if (unlikely(diff <= 0)) { + /* Update credits for "ghost" ACKs */ + if (diff == 0 && opcode == OP(ACKNOWLEDGE)) { + aeth = be32_to_cpu(ohdr->u.aeth); + if ((aeth >> IB_AETH_NAK_SHIFT) == 0) + rvt_get_credit(qp, aeth); + } + goto ack_done; + } + + /* + * Skip everything other than the PSN we expect, if we are waiting + * for a reply to a restarted RDMA read or atomic op. + */ + if (qp->r_flags & RVT_R_RDMAR_SEQ) { + if (qib_cmp24(psn, qp->s_last_psn + 1) != 0) + goto ack_done; + qp->r_flags &= ~RVT_R_RDMAR_SEQ; + } + + if (unlikely(qp->s_acked == qp->s_tail)) + goto ack_done; + wqe = rvt_get_swqe_ptr(qp, qp->s_acked); + status = IB_WC_SUCCESS; + + switch (opcode) { + case OP(ACKNOWLEDGE): + case OP(ATOMIC_ACKNOWLEDGE): + case OP(RDMA_READ_RESPONSE_FIRST): + aeth = be32_to_cpu(ohdr->u.aeth); + if (opcode == OP(ATOMIC_ACKNOWLEDGE)) + val = ib_u64_get(&ohdr->u.at.atomic_ack_eth); + else + val = 0; + if (!do_rc_ack(qp, aeth, psn, opcode, val, rcd) || + opcode != OP(RDMA_READ_RESPONSE_FIRST)) + goto ack_done; + hdrsize += 4; + wqe = rvt_get_swqe_ptr(qp, qp->s_acked); + if (unlikely(wqe->wr.opcode != IB_WR_RDMA_READ)) + goto ack_op_err; + /* + * If this is a response to a resent RDMA read, we + * have to be careful to copy the data to the right + * location. + */ + qp->s_rdma_read_len = restart_sge(&qp->s_rdma_read_sge, + wqe, psn, pmtu); + goto read_middle; + + case OP(RDMA_READ_RESPONSE_MIDDLE): + /* no AETH, no ACK */ + if (unlikely(qib_cmp24(psn, qp->s_last_psn + 1))) + goto ack_seq_err; + if (unlikely(wqe->wr.opcode != IB_WR_RDMA_READ)) + goto ack_op_err; +read_middle: + if (unlikely(tlen != (hdrsize + pmtu + 4))) + goto ack_len_err; + if (unlikely(pmtu >= qp->s_rdma_read_len)) + goto ack_len_err; + + /* + * We got a response so update the timeout. + * 4.096 usec. * (1 << qp->timeout) + */ + rvt_mod_retry_timer(qp); + if (qp->s_flags & RVT_S_WAIT_ACK) { + qp->s_flags &= ~RVT_S_WAIT_ACK; + qib_schedule_send(qp); + } + + if (opcode == OP(RDMA_READ_RESPONSE_MIDDLE)) + qp->s_retry = qp->s_retry_cnt; + + /* + * Update the RDMA receive state but do the copy w/o + * holding the locks and blocking interrupts. + */ + qp->s_rdma_read_len -= pmtu; + update_last_psn(qp, psn); + spin_unlock_irqrestore(&qp->s_lock, flags); + rvt_copy_sge(qp, &qp->s_rdma_read_sge, + data, pmtu, false, false); + goto bail; + + case OP(RDMA_READ_RESPONSE_ONLY): + aeth = be32_to_cpu(ohdr->u.aeth); + if (!do_rc_ack(qp, aeth, psn, opcode, 0, rcd)) + goto ack_done; + /* Get the number of bytes the message was padded by. */ + pad = (be32_to_cpu(ohdr->bth[0]) >> 20) & 3; + /* + * Check that the data size is >= 0 && <= pmtu. + * Remember to account for the AETH header (4) and + * ICRC (4). + */ + if (unlikely(tlen < (hdrsize + pad + 8))) + goto ack_len_err; + /* + * If this is a response to a resent RDMA read, we + * have to be careful to copy the data to the right + * location. + */ + wqe = rvt_get_swqe_ptr(qp, qp->s_acked); + qp->s_rdma_read_len = restart_sge(&qp->s_rdma_read_sge, + wqe, psn, pmtu); + goto read_last; + + case OP(RDMA_READ_RESPONSE_LAST): + /* ACKs READ req. */ + if (unlikely(qib_cmp24(psn, qp->s_last_psn + 1))) + goto ack_seq_err; + if (unlikely(wqe->wr.opcode != IB_WR_RDMA_READ)) + goto ack_op_err; + /* Get the number of bytes the message was padded by. */ + pad = (be32_to_cpu(ohdr->bth[0]) >> 20) & 3; + /* + * Check that the data size is >= 1 && <= pmtu. + * Remember to account for the AETH header (4) and + * ICRC (4). + */ + if (unlikely(tlen <= (hdrsize + pad + 8))) + goto ack_len_err; +read_last: + tlen -= hdrsize + pad + 8; + if (unlikely(tlen != qp->s_rdma_read_len)) + goto ack_len_err; + aeth = be32_to_cpu(ohdr->u.aeth); + rvt_copy_sge(qp, &qp->s_rdma_read_sge, + data, tlen, false, false); + WARN_ON(qp->s_rdma_read_sge.num_sge); + (void) do_rc_ack(qp, aeth, psn, + OP(RDMA_READ_RESPONSE_LAST), 0, rcd); + goto ack_done; + } + +ack_op_err: + status = IB_WC_LOC_QP_OP_ERR; + goto ack_err; + +ack_seq_err: + rdma_seq_err(qp, ibp, psn, rcd); + goto ack_done; + +ack_len_err: + status = IB_WC_LOC_LEN_ERR; +ack_err: + if (qp->s_last == qp->s_acked) { + rvt_send_complete(qp, wqe, status); + rvt_error_qp(qp, IB_WC_WR_FLUSH_ERR); + } +ack_done: + spin_unlock_irqrestore(&qp->s_lock, flags); +bail: + return; +} + +/** + * qib_rc_rcv_error - process an incoming duplicate or error RC packet + * @ohdr: the other headers for this packet + * @data: the packet data + * @qp: the QP for this packet + * @opcode: the opcode for this packet + * @psn: the packet sequence number for this packet + * @diff: the difference between the PSN and the expected PSN + * @rcd: the context pointer + * + * This is called from qib_rc_rcv() to process an unexpected + * incoming RC packet for the given QP. + * Called at interrupt level. + * Return 1 if no more processing is needed; otherwise return 0 to + * schedule a response to be sent. + */ +static int qib_rc_rcv_error(struct ib_other_headers *ohdr, + void *data, + struct rvt_qp *qp, + u32 opcode, + u32 psn, + int diff, + struct qib_ctxtdata *rcd) +{ + struct qib_ibport *ibp = to_iport(qp->ibqp.device, qp->port_num); + struct rvt_ack_entry *e; + unsigned long flags; + u8 i, prev; + int old_req; + + if (diff > 0) { + /* + * Packet sequence error. + * A NAK will ACK earlier sends and RDMA writes. + * Don't queue the NAK if we already sent one. + */ + if (!qp->r_nak_state) { + ibp->rvp.n_rc_seqnak++; + qp->r_nak_state = IB_NAK_PSN_ERROR; + /* Use the expected PSN. */ + qp->r_ack_psn = qp->r_psn; + /* + * Wait to send the sequence NAK until all packets + * in the receive queue have been processed. + * Otherwise, we end up propagating congestion. + */ + if (list_empty(&qp->rspwait)) { + qp->r_flags |= RVT_R_RSP_NAK; + rvt_get_qp(qp); + list_add_tail(&qp->rspwait, &rcd->qp_wait_list); + } + } + goto done; + } + + /* + * Handle a duplicate request. Don't re-execute SEND, RDMA + * write or atomic op. Don't NAK errors, just silently drop + * the duplicate request. Note that r_sge, r_len, and + * r_rcv_len may be in use so don't modify them. + * + * We are supposed to ACK the earliest duplicate PSN but we + * can coalesce an outstanding duplicate ACK. We have to + * send the earliest so that RDMA reads can be restarted at + * the requester's expected PSN. + * + * First, find where this duplicate PSN falls within the + * ACKs previously sent. + * old_req is true if there is an older response that is scheduled + * to be sent before sending this one. + */ + e = NULL; + old_req = 1; + ibp->rvp.n_rc_dupreq++; + + spin_lock_irqsave(&qp->s_lock, flags); + + for (i = qp->r_head_ack_queue; ; i = prev) { + if (i == qp->s_tail_ack_queue) + old_req = 0; + if (i) + prev = i - 1; + else + prev = QIB_MAX_RDMA_ATOMIC; + if (prev == qp->r_head_ack_queue) { + e = NULL; + break; + } + e = &qp->s_ack_queue[prev]; + if (!e->opcode) { + e = NULL; + break; + } + if (qib_cmp24(psn, e->psn) >= 0) { + if (prev == qp->s_tail_ack_queue && + qib_cmp24(psn, e->lpsn) <= 0) + old_req = 0; + break; + } + } + switch (opcode) { + case OP(RDMA_READ_REQUEST): { + struct ib_reth *reth; + u32 offset; + u32 len; + + /* + * If we didn't find the RDMA read request in the ack queue, + * we can ignore this request. + */ + if (!e || e->opcode != OP(RDMA_READ_REQUEST)) + goto unlock_done; + /* RETH comes after BTH */ + reth = &ohdr->u.rc.reth; + /* + * Address range must be a subset of the original + * request and start on pmtu boundaries. + * We reuse the old ack_queue slot since the requester + * should not back up and request an earlier PSN for the + * same request. + */ + offset = ((psn - e->psn) & QIB_PSN_MASK) * + qp->pmtu; + len = be32_to_cpu(reth->length); + if (unlikely(offset + len != e->rdma_sge.sge_length)) + goto unlock_done; + if (e->rdma_sge.mr) { + rvt_put_mr(e->rdma_sge.mr); + e->rdma_sge.mr = NULL; + } + if (len != 0) { + u32 rkey = be32_to_cpu(reth->rkey); + u64 vaddr = be64_to_cpu(reth->vaddr); + int ok; + + ok = rvt_rkey_ok(qp, &e->rdma_sge, len, vaddr, rkey, + IB_ACCESS_REMOTE_READ); + if (unlikely(!ok)) + goto unlock_done; + } else { + e->rdma_sge.vaddr = NULL; + e->rdma_sge.length = 0; + e->rdma_sge.sge_length = 0; + } + e->psn = psn; + if (old_req) + goto unlock_done; + qp->s_tail_ack_queue = prev; + break; + } + + case OP(COMPARE_SWAP): + case OP(FETCH_ADD): { + /* + * If we didn't find the atomic request in the ack queue + * or the send tasklet is already backed up to send an + * earlier entry, we can ignore this request. + */ + if (!e || e->opcode != (u8) opcode || old_req) + goto unlock_done; + qp->s_tail_ack_queue = prev; + break; + } + + default: + /* + * Ignore this operation if it doesn't request an ACK + * or an earlier RDMA read or atomic is going to be resent. + */ + if (!(psn & IB_BTH_REQ_ACK) || old_req) + goto unlock_done; + /* + * Resend the most recent ACK if this request is + * after all the previous RDMA reads and atomics. + */ + if (i == qp->r_head_ack_queue) { + spin_unlock_irqrestore(&qp->s_lock, flags); + qp->r_nak_state = 0; + qp->r_ack_psn = qp->r_psn - 1; + goto send_ack; + } + /* + * Try to send a simple ACK to work around a Mellanox bug + * which doesn't accept a RDMA read response or atomic + * response as an ACK for earlier SENDs or RDMA writes. + */ + if (!(qp->s_flags & RVT_S_RESP_PENDING)) { + spin_unlock_irqrestore(&qp->s_lock, flags); + qp->r_nak_state = 0; + qp->r_ack_psn = qp->s_ack_queue[i].psn - 1; + goto send_ack; + } + /* + * Resend the RDMA read or atomic op which + * ACKs this duplicate request. + */ + qp->s_tail_ack_queue = i; + break; + } + qp->s_ack_state = OP(ACKNOWLEDGE); + qp->s_flags |= RVT_S_RESP_PENDING; + qp->r_nak_state = 0; + qib_schedule_send(qp); + +unlock_done: + spin_unlock_irqrestore(&qp->s_lock, flags); +done: + return 1; + +send_ack: + return 0; +} + +static inline void qib_update_ack_queue(struct rvt_qp *qp, unsigned n) +{ + unsigned next; + + next = n + 1; + if (next > QIB_MAX_RDMA_ATOMIC) + next = 0; + qp->s_tail_ack_queue = next; + qp->s_ack_state = OP(ACKNOWLEDGE); +} + +/** + * qib_rc_rcv - process an incoming RC packet + * @rcd: the context pointer + * @hdr: the header of this packet + * @has_grh: true if the header has a GRH + * @data: the packet data + * @tlen: the packet length + * @qp: the QP for this packet + * + * This is called from qib_qp_rcv() to process an incoming RC packet + * for the given QP. + * Called at interrupt level. + */ +void qib_rc_rcv(struct qib_ctxtdata *rcd, struct ib_header *hdr, + int has_grh, void *data, u32 tlen, struct rvt_qp *qp) +{ + struct qib_ibport *ibp = &rcd->ppd->ibport_data; + struct ib_other_headers *ohdr; + u32 opcode; + u32 hdrsize; + u32 psn; + u32 pad; + struct ib_wc wc; + u32 pmtu = qp->pmtu; + int diff; + struct ib_reth *reth; + unsigned long flags; + int ret; + + /* Check for GRH */ + if (!has_grh) { + ohdr = &hdr->u.oth; + hdrsize = 8 + 12; /* LRH + BTH */ + } else { + ohdr = &hdr->u.l.oth; + hdrsize = 8 + 40 + 12; /* LRH + GRH + BTH */ + } + + opcode = be32_to_cpu(ohdr->bth[0]); + if (qib_ruc_check_hdr(ibp, hdr, has_grh, qp, opcode)) + return; + + psn = be32_to_cpu(ohdr->bth[2]); + opcode >>= 24; + + /* + * Process responses (ACKs) before anything else. Note that the + * packet sequence number will be for something in the send work + * queue rather than the expected receive packet sequence number. + * In other words, this QP is the requester. + */ + if (opcode >= OP(RDMA_READ_RESPONSE_FIRST) && + opcode <= OP(ATOMIC_ACKNOWLEDGE)) { + qib_rc_rcv_resp(ibp, ohdr, data, tlen, qp, opcode, psn, + hdrsize, pmtu, rcd); + return; + } + + /* Compute 24 bits worth of difference. */ + diff = qib_cmp24(psn, qp->r_psn); + if (unlikely(diff)) { + if (qib_rc_rcv_error(ohdr, data, qp, opcode, psn, diff, rcd)) + return; + goto send_ack; + } + + /* Check for opcode sequence errors. */ + switch (qp->r_state) { + case OP(SEND_FIRST): + case OP(SEND_MIDDLE): + if (opcode == OP(SEND_MIDDLE) || + opcode == OP(SEND_LAST) || + opcode == OP(SEND_LAST_WITH_IMMEDIATE)) + break; + goto nack_inv; + + case OP(RDMA_WRITE_FIRST): + case OP(RDMA_WRITE_MIDDLE): + if (opcode == OP(RDMA_WRITE_MIDDLE) || + opcode == OP(RDMA_WRITE_LAST) || + opcode == OP(RDMA_WRITE_LAST_WITH_IMMEDIATE)) + break; + goto nack_inv; + + default: + if (opcode == OP(SEND_MIDDLE) || + opcode == OP(SEND_LAST) || + opcode == OP(SEND_LAST_WITH_IMMEDIATE) || + opcode == OP(RDMA_WRITE_MIDDLE) || + opcode == OP(RDMA_WRITE_LAST) || + opcode == OP(RDMA_WRITE_LAST_WITH_IMMEDIATE)) + goto nack_inv; + /* + * Note that it is up to the requester to not send a new + * RDMA read or atomic operation before receiving an ACK + * for the previous operation. + */ + break; + } + + if (qp->state == IB_QPS_RTR && !(qp->r_flags & RVT_R_COMM_EST)) + rvt_comm_est(qp); + + /* OK, process the packet. */ + switch (opcode) { + case OP(SEND_FIRST): + ret = rvt_get_rwqe(qp, false); + if (ret < 0) + goto nack_op_err; + if (!ret) + goto rnr_nak; + qp->r_rcv_len = 0; + fallthrough; + case OP(SEND_MIDDLE): + case OP(RDMA_WRITE_MIDDLE): +send_middle: + /* Check for invalid length PMTU or posted rwqe len. */ + if (unlikely(tlen != (hdrsize + pmtu + 4))) + goto nack_inv; + qp->r_rcv_len += pmtu; + if (unlikely(qp->r_rcv_len > qp->r_len)) + goto nack_inv; + rvt_copy_sge(qp, &qp->r_sge, data, pmtu, true, false); + break; + + case OP(RDMA_WRITE_LAST_WITH_IMMEDIATE): + /* consume RWQE */ + ret = rvt_get_rwqe(qp, true); + if (ret < 0) + goto nack_op_err; + if (!ret) + goto rnr_nak; + goto send_last_imm; + + case OP(SEND_ONLY): + case OP(SEND_ONLY_WITH_IMMEDIATE): + ret = rvt_get_rwqe(qp, false); + if (ret < 0) + goto nack_op_err; + if (!ret) + goto rnr_nak; + qp->r_rcv_len = 0; + if (opcode == OP(SEND_ONLY)) + goto no_immediate_data; + fallthrough; /* for SEND_ONLY_WITH_IMMEDIATE */ + case OP(SEND_LAST_WITH_IMMEDIATE): +send_last_imm: + wc.ex.imm_data = ohdr->u.imm_data; + hdrsize += 4; + wc.wc_flags = IB_WC_WITH_IMM; + goto send_last; + case OP(SEND_LAST): + case OP(RDMA_WRITE_LAST): +no_immediate_data: + wc.wc_flags = 0; + wc.ex.imm_data = 0; +send_last: + /* Get the number of bytes the message was padded by. */ + pad = (be32_to_cpu(ohdr->bth[0]) >> 20) & 3; + /* Check for invalid length. */ + /* XXX LAST len should be >= 1 */ + if (unlikely(tlen < (hdrsize + pad + 4))) + goto nack_inv; + /* Don't count the CRC. */ + tlen -= (hdrsize + pad + 4); + wc.byte_len = tlen + qp->r_rcv_len; + if (unlikely(wc.byte_len > qp->r_len)) + goto nack_inv; + rvt_copy_sge(qp, &qp->r_sge, data, tlen, true, false); + rvt_put_ss(&qp->r_sge); + qp->r_msn++; + if (!test_and_clear_bit(RVT_R_WRID_VALID, &qp->r_aflags)) + break; + wc.wr_id = qp->r_wr_id; + wc.status = IB_WC_SUCCESS; + if (opcode == OP(RDMA_WRITE_LAST_WITH_IMMEDIATE) || + opcode == OP(RDMA_WRITE_ONLY_WITH_IMMEDIATE)) + wc.opcode = IB_WC_RECV_RDMA_WITH_IMM; + else + wc.opcode = IB_WC_RECV; + wc.qp = &qp->ibqp; + wc.src_qp = qp->remote_qpn; + wc.slid = rdma_ah_get_dlid(&qp->remote_ah_attr); + wc.sl = rdma_ah_get_sl(&qp->remote_ah_attr); + /* zero fields that are N/A */ + wc.vendor_err = 0; + wc.pkey_index = 0; + wc.dlid_path_bits = 0; + wc.port_num = 0; + /* Signal completion event if the solicited bit is set. */ + rvt_recv_cq(qp, &wc, ib_bth_is_solicited(ohdr)); + break; + + case OP(RDMA_WRITE_FIRST): + case OP(RDMA_WRITE_ONLY): + case OP(RDMA_WRITE_ONLY_WITH_IMMEDIATE): + if (unlikely(!(qp->qp_access_flags & IB_ACCESS_REMOTE_WRITE))) + goto nack_inv; + /* consume RWQE */ + reth = &ohdr->u.rc.reth; + hdrsize += sizeof(*reth); + qp->r_len = be32_to_cpu(reth->length); + qp->r_rcv_len = 0; + qp->r_sge.sg_list = NULL; + if (qp->r_len != 0) { + u32 rkey = be32_to_cpu(reth->rkey); + u64 vaddr = be64_to_cpu(reth->vaddr); + int ok; + + /* Check rkey & NAK */ + ok = rvt_rkey_ok(qp, &qp->r_sge.sge, qp->r_len, vaddr, + rkey, IB_ACCESS_REMOTE_WRITE); + if (unlikely(!ok)) + goto nack_acc; + qp->r_sge.num_sge = 1; + } else { + qp->r_sge.num_sge = 0; + qp->r_sge.sge.mr = NULL; + qp->r_sge.sge.vaddr = NULL; + qp->r_sge.sge.length = 0; + qp->r_sge.sge.sge_length = 0; + } + if (opcode == OP(RDMA_WRITE_FIRST)) + goto send_middle; + else if (opcode == OP(RDMA_WRITE_ONLY)) + goto no_immediate_data; + ret = rvt_get_rwqe(qp, true); + if (ret < 0) + goto nack_op_err; + if (!ret) { + rvt_put_ss(&qp->r_sge); + goto rnr_nak; + } + wc.ex.imm_data = ohdr->u.rc.imm_data; + hdrsize += 4; + wc.wc_flags = IB_WC_WITH_IMM; + goto send_last; + + case OP(RDMA_READ_REQUEST): { + struct rvt_ack_entry *e; + u32 len; + u8 next; + + if (unlikely(!(qp->qp_access_flags & IB_ACCESS_REMOTE_READ))) + goto nack_inv; + next = qp->r_head_ack_queue + 1; + /* s_ack_queue is size QIB_MAX_RDMA_ATOMIC+1 so use > not >= */ + if (next > QIB_MAX_RDMA_ATOMIC) + next = 0; + spin_lock_irqsave(&qp->s_lock, flags); + if (unlikely(next == qp->s_tail_ack_queue)) { + if (!qp->s_ack_queue[next].sent) + goto nack_inv_unlck; + qib_update_ack_queue(qp, next); + } + e = &qp->s_ack_queue[qp->r_head_ack_queue]; + if (e->opcode == OP(RDMA_READ_REQUEST) && e->rdma_sge.mr) { + rvt_put_mr(e->rdma_sge.mr); + e->rdma_sge.mr = NULL; + } + reth = &ohdr->u.rc.reth; + len = be32_to_cpu(reth->length); + if (len) { + u32 rkey = be32_to_cpu(reth->rkey); + u64 vaddr = be64_to_cpu(reth->vaddr); + int ok; + + /* Check rkey & NAK */ + ok = rvt_rkey_ok(qp, &e->rdma_sge, len, vaddr, + rkey, IB_ACCESS_REMOTE_READ); + if (unlikely(!ok)) + goto nack_acc_unlck; + /* + * Update the next expected PSN. We add 1 later + * below, so only add the remainder here. + */ + qp->r_psn += rvt_div_mtu(qp, len - 1); + } else { + e->rdma_sge.mr = NULL; + e->rdma_sge.vaddr = NULL; + e->rdma_sge.length = 0; + e->rdma_sge.sge_length = 0; + } + e->opcode = opcode; + e->sent = 0; + e->psn = psn; + e->lpsn = qp->r_psn; + /* + * We need to increment the MSN here instead of when we + * finish sending the result since a duplicate request would + * increment it more than once. + */ + qp->r_msn++; + qp->r_psn++; + qp->r_state = opcode; + qp->r_nak_state = 0; + qp->r_head_ack_queue = next; + + /* Schedule the send tasklet. */ + qp->s_flags |= RVT_S_RESP_PENDING; + qib_schedule_send(qp); + + goto sunlock; + } + + case OP(COMPARE_SWAP): + case OP(FETCH_ADD): { + struct ib_atomic_eth *ateth; + struct rvt_ack_entry *e; + u64 vaddr; + atomic64_t *maddr; + u64 sdata; + u32 rkey; + u8 next; + + if (unlikely(!(qp->qp_access_flags & IB_ACCESS_REMOTE_ATOMIC))) + goto nack_inv; + next = qp->r_head_ack_queue + 1; + if (next > QIB_MAX_RDMA_ATOMIC) + next = 0; + spin_lock_irqsave(&qp->s_lock, flags); + if (unlikely(next == qp->s_tail_ack_queue)) { + if (!qp->s_ack_queue[next].sent) + goto nack_inv_unlck; + qib_update_ack_queue(qp, next); + } + e = &qp->s_ack_queue[qp->r_head_ack_queue]; + if (e->opcode == OP(RDMA_READ_REQUEST) && e->rdma_sge.mr) { + rvt_put_mr(e->rdma_sge.mr); + e->rdma_sge.mr = NULL; + } + ateth = &ohdr->u.atomic_eth; + vaddr = get_ib_ateth_vaddr(ateth); + if (unlikely(vaddr & (sizeof(u64) - 1))) + goto nack_inv_unlck; + rkey = be32_to_cpu(ateth->rkey); + /* Check rkey & NAK */ + if (unlikely(!rvt_rkey_ok(qp, &qp->r_sge.sge, sizeof(u64), + vaddr, rkey, + IB_ACCESS_REMOTE_ATOMIC))) + goto nack_acc_unlck; + /* Perform atomic OP and save result. */ + maddr = (atomic64_t *) qp->r_sge.sge.vaddr; + sdata = get_ib_ateth_swap(ateth); + e->atomic_data = (opcode == OP(FETCH_ADD)) ? + (u64) atomic64_add_return(sdata, maddr) - sdata : + (u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr, + get_ib_ateth_compare(ateth), + sdata); + rvt_put_mr(qp->r_sge.sge.mr); + qp->r_sge.num_sge = 0; + e->opcode = opcode; + e->sent = 0; + e->psn = psn; + e->lpsn = psn; + qp->r_msn++; + qp->r_psn++; + qp->r_state = opcode; + qp->r_nak_state = 0; + qp->r_head_ack_queue = next; + + /* Schedule the send tasklet. */ + qp->s_flags |= RVT_S_RESP_PENDING; + qib_schedule_send(qp); + + goto sunlock; + } + + default: + /* NAK unknown opcodes. */ + goto nack_inv; + } + qp->r_psn++; + qp->r_state = opcode; + qp->r_ack_psn = psn; + qp->r_nak_state = 0; + /* Send an ACK if requested or required. */ + if (psn & (1 << 31)) + goto send_ack; + return; + +rnr_nak: + qp->r_nak_state = IB_RNR_NAK | qp->r_min_rnr_timer; + qp->r_ack_psn = qp->r_psn; + /* Queue RNR NAK for later */ + if (list_empty(&qp->rspwait)) { + qp->r_flags |= RVT_R_RSP_NAK; + rvt_get_qp(qp); + list_add_tail(&qp->rspwait, &rcd->qp_wait_list); + } + return; + +nack_op_err: + rvt_rc_error(qp, IB_WC_LOC_QP_OP_ERR); + qp->r_nak_state = IB_NAK_REMOTE_OPERATIONAL_ERROR; + qp->r_ack_psn = qp->r_psn; + /* Queue NAK for later */ + if (list_empty(&qp->rspwait)) { + qp->r_flags |= RVT_R_RSP_NAK; + rvt_get_qp(qp); + list_add_tail(&qp->rspwait, &rcd->qp_wait_list); + } + return; + +nack_inv_unlck: + spin_unlock_irqrestore(&qp->s_lock, flags); +nack_inv: + rvt_rc_error(qp, IB_WC_LOC_QP_OP_ERR); + qp->r_nak_state = IB_NAK_INVALID_REQUEST; + qp->r_ack_psn = qp->r_psn; + /* Queue NAK for later */ + if (list_empty(&qp->rspwait)) { + qp->r_flags |= RVT_R_RSP_NAK; + rvt_get_qp(qp); + list_add_tail(&qp->rspwait, &rcd->qp_wait_list); + } + return; + +nack_acc_unlck: + spin_unlock_irqrestore(&qp->s_lock, flags); +nack_acc: + rvt_rc_error(qp, IB_WC_LOC_PROT_ERR); + qp->r_nak_state = IB_NAK_REMOTE_ACCESS_ERROR; + qp->r_ack_psn = qp->r_psn; +send_ack: + qib_send_rc_ack(qp); + return; + +sunlock: + spin_unlock_irqrestore(&qp->s_lock, flags); +} diff --git a/drivers/infiniband/hw/qib/qib_ruc.c b/drivers/infiniband/hw/qib/qib_ruc.c new file mode 100644 index 000000000..1fa21938f --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_ruc.c @@ -0,0 +1,314 @@ +/* + * Copyright (c) 2006, 2007, 2008, 2009 QLogic Corporation. All rights reserved. + * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/spinlock.h> +#include <rdma/ib_smi.h> + +#include "qib.h" +#include "qib_mad.h" + +/* + * Switch to alternate path. + * The QP s_lock should be held and interrupts disabled. + */ +void qib_migrate_qp(struct rvt_qp *qp) +{ + struct ib_event ev; + + qp->s_mig_state = IB_MIG_MIGRATED; + qp->remote_ah_attr = qp->alt_ah_attr; + qp->port_num = rdma_ah_get_port_num(&qp->alt_ah_attr); + qp->s_pkey_index = qp->s_alt_pkey_index; + + ev.device = qp->ibqp.device; + ev.element.qp = &qp->ibqp; + ev.event = IB_EVENT_PATH_MIG; + qp->ibqp.event_handler(&ev, qp->ibqp.qp_context); +} + +static __be64 get_sguid(struct qib_ibport *ibp, unsigned index) +{ + if (!index) { + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + + return ppd->guid; + } + return ibp->guids[index - 1]; +} + +static int gid_ok(union ib_gid *gid, __be64 gid_prefix, __be64 id) +{ + return (gid->global.interface_id == id && + (gid->global.subnet_prefix == gid_prefix || + gid->global.subnet_prefix == IB_DEFAULT_GID_PREFIX)); +} + +/* + * + * This should be called with the QP r_lock held. + * + * The s_lock will be acquired around the qib_migrate_qp() call. + */ +int qib_ruc_check_hdr(struct qib_ibport *ibp, struct ib_header *hdr, + int has_grh, struct rvt_qp *qp, u32 bth0) +{ + __be64 guid; + unsigned long flags; + + if (qp->s_mig_state == IB_MIG_ARMED && (bth0 & IB_BTH_MIG_REQ)) { + if (!has_grh) { + if (rdma_ah_get_ah_flags(&qp->alt_ah_attr) & + IB_AH_GRH) + goto err; + } else { + const struct ib_global_route *grh; + + if (!(rdma_ah_get_ah_flags(&qp->alt_ah_attr) & + IB_AH_GRH)) + goto err; + grh = rdma_ah_read_grh(&qp->alt_ah_attr); + guid = get_sguid(ibp, grh->sgid_index); + if (!gid_ok(&hdr->u.l.grh.dgid, + ibp->rvp.gid_prefix, guid)) + goto err; + if (!gid_ok(&hdr->u.l.grh.sgid, + grh->dgid.global.subnet_prefix, + grh->dgid.global.interface_id)) + goto err; + } + if (!qib_pkey_ok((u16)bth0, + qib_get_pkey(ibp, qp->s_alt_pkey_index))) { + qib_bad_pkey(ibp, + (u16)bth0, + (be16_to_cpu(hdr->lrh[0]) >> 4) & 0xF, + 0, qp->ibqp.qp_num, + hdr->lrh[3], hdr->lrh[1]); + goto err; + } + /* Validate the SLID. See Ch. 9.6.1.5 and 17.2.8 */ + if ((be16_to_cpu(hdr->lrh[3]) != + rdma_ah_get_dlid(&qp->alt_ah_attr)) || + ppd_from_ibp(ibp)->port != + rdma_ah_get_port_num(&qp->alt_ah_attr)) + goto err; + spin_lock_irqsave(&qp->s_lock, flags); + qib_migrate_qp(qp); + spin_unlock_irqrestore(&qp->s_lock, flags); + } else { + if (!has_grh) { + if (rdma_ah_get_ah_flags(&qp->remote_ah_attr) & + IB_AH_GRH) + goto err; + } else { + const struct ib_global_route *grh; + + if (!(rdma_ah_get_ah_flags(&qp->remote_ah_attr) & + IB_AH_GRH)) + goto err; + grh = rdma_ah_read_grh(&qp->remote_ah_attr); + guid = get_sguid(ibp, grh->sgid_index); + if (!gid_ok(&hdr->u.l.grh.dgid, + ibp->rvp.gid_prefix, guid)) + goto err; + if (!gid_ok(&hdr->u.l.grh.sgid, + grh->dgid.global.subnet_prefix, + grh->dgid.global.interface_id)) + goto err; + } + if (!qib_pkey_ok((u16)bth0, + qib_get_pkey(ibp, qp->s_pkey_index))) { + qib_bad_pkey(ibp, + (u16)bth0, + (be16_to_cpu(hdr->lrh[0]) >> 4) & 0xF, + 0, qp->ibqp.qp_num, + hdr->lrh[3], hdr->lrh[1]); + goto err; + } + /* Validate the SLID. See Ch. 9.6.1.5 */ + if (be16_to_cpu(hdr->lrh[3]) != + rdma_ah_get_dlid(&qp->remote_ah_attr) || + ppd_from_ibp(ibp)->port != qp->port_num) + goto err; + if (qp->s_mig_state == IB_MIG_REARM && + !(bth0 & IB_BTH_MIG_REQ)) + qp->s_mig_state = IB_MIG_ARMED; + } + + return 0; + +err: + return 1; +} + +/** + * qib_make_grh - construct a GRH header + * @ibp: a pointer to the IB port + * @hdr: a pointer to the GRH header being constructed + * @grh: the global route address to send to + * @hwords: the number of 32 bit words of header being sent + * @nwords: the number of 32 bit words of data being sent + * + * Return the size of the header in 32 bit words. + */ +u32 qib_make_grh(struct qib_ibport *ibp, struct ib_grh *hdr, + const struct ib_global_route *grh, u32 hwords, u32 nwords) +{ + hdr->version_tclass_flow = + cpu_to_be32((IB_GRH_VERSION << IB_GRH_VERSION_SHIFT) | + (grh->traffic_class << IB_GRH_TCLASS_SHIFT) | + (grh->flow_label << IB_GRH_FLOW_SHIFT)); + hdr->paylen = cpu_to_be16((hwords - 2 + nwords + SIZE_OF_CRC) << 2); + /* next_hdr is defined by C8-7 in ch. 8.4.1 */ + hdr->next_hdr = IB_GRH_NEXT_HDR; + hdr->hop_limit = grh->hop_limit; + /* The SGID is 32-bit aligned. */ + hdr->sgid.global.subnet_prefix = ibp->rvp.gid_prefix; + if (!grh->sgid_index) + hdr->sgid.global.interface_id = ppd_from_ibp(ibp)->guid; + else if (grh->sgid_index < QIB_GUIDS_PER_PORT) + hdr->sgid.global.interface_id = ibp->guids[grh->sgid_index - 1]; + hdr->dgid = grh->dgid; + + /* GRH header size in 32-bit words. */ + return sizeof(struct ib_grh) / sizeof(u32); +} + +void qib_make_ruc_header(struct rvt_qp *qp, struct ib_other_headers *ohdr, + u32 bth0, u32 bth2) +{ + struct qib_qp_priv *priv = qp->priv; + struct qib_ibport *ibp = to_iport(qp->ibqp.device, qp->port_num); + u16 lrh0; + u32 nwords; + u32 extra_bytes; + + /* Construct the header. */ + extra_bytes = -qp->s_cur_size & 3; + nwords = (qp->s_cur_size + extra_bytes) >> 2; + lrh0 = QIB_LRH_BTH; + if (unlikely(rdma_ah_get_ah_flags(&qp->remote_ah_attr) & IB_AH_GRH)) { + qp->s_hdrwords += + qib_make_grh(ibp, &priv->s_hdr->u.l.grh, + rdma_ah_read_grh(&qp->remote_ah_attr), + qp->s_hdrwords, nwords); + lrh0 = QIB_LRH_GRH; + } + lrh0 |= ibp->sl_to_vl[rdma_ah_get_sl(&qp->remote_ah_attr)] << 12 | + rdma_ah_get_sl(&qp->remote_ah_attr) << 4; + priv->s_hdr->lrh[0] = cpu_to_be16(lrh0); + priv->s_hdr->lrh[1] = + cpu_to_be16(rdma_ah_get_dlid(&qp->remote_ah_attr)); + priv->s_hdr->lrh[2] = + cpu_to_be16(qp->s_hdrwords + nwords + SIZE_OF_CRC); + priv->s_hdr->lrh[3] = + cpu_to_be16(ppd_from_ibp(ibp)->lid | + rdma_ah_get_path_bits(&qp->remote_ah_attr)); + bth0 |= qib_get_pkey(ibp, qp->s_pkey_index); + bth0 |= extra_bytes << 20; + if (qp->s_mig_state == IB_MIG_MIGRATED) + bth0 |= IB_BTH_MIG_REQ; + ohdr->bth[0] = cpu_to_be32(bth0); + ohdr->bth[1] = cpu_to_be32(qp->remote_qpn); + ohdr->bth[2] = cpu_to_be32(bth2); + this_cpu_inc(ibp->pmastats->n_unicast_xmit); +} + +void _qib_do_send(struct work_struct *work) +{ + struct qib_qp_priv *priv = container_of(work, struct qib_qp_priv, + s_work); + struct rvt_qp *qp = priv->owner; + + qib_do_send(qp); +} + +/** + * qib_do_send - perform a send on a QP + * @qp: pointer to the QP + * + * Process entries in the send work queue until credit or queue is + * exhausted. Only allow one CPU to send a packet per QP (tasklet). + * Otherwise, two threads could send packets out of order. + */ +void qib_do_send(struct rvt_qp *qp) +{ + struct qib_qp_priv *priv = qp->priv; + struct qib_ibport *ibp = to_iport(qp->ibqp.device, qp->port_num); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + int (*make_req)(struct rvt_qp *qp, unsigned long *flags); + unsigned long flags; + + if ((qp->ibqp.qp_type == IB_QPT_RC || + qp->ibqp.qp_type == IB_QPT_UC) && + (rdma_ah_get_dlid(&qp->remote_ah_attr) & + ~((1 << ppd->lmc) - 1)) == ppd->lid) { + rvt_ruc_loopback(qp); + return; + } + + if (qp->ibqp.qp_type == IB_QPT_RC) + make_req = qib_make_rc_req; + else if (qp->ibqp.qp_type == IB_QPT_UC) + make_req = qib_make_uc_req; + else + make_req = qib_make_ud_req; + + spin_lock_irqsave(&qp->s_lock, flags); + + /* Return if we are already busy processing a work request. */ + if (!qib_send_ok(qp)) { + spin_unlock_irqrestore(&qp->s_lock, flags); + return; + } + + qp->s_flags |= RVT_S_BUSY; + + do { + /* Check for a constructed packet to be sent. */ + if (qp->s_hdrwords != 0) { + spin_unlock_irqrestore(&qp->s_lock, flags); + /* + * If the packet cannot be sent now, return and + * the send tasklet will be woken up later. + */ + if (qib_verbs_send(qp, priv->s_hdr, qp->s_hdrwords, + qp->s_cur_sge, qp->s_cur_size)) + return; + /* Record that s_hdr is empty. */ + qp->s_hdrwords = 0; + spin_lock_irqsave(&qp->s_lock, flags); + } + } while (make_req(qp, &flags)); + + spin_unlock_irqrestore(&qp->s_lock, flags); +} diff --git a/drivers/infiniband/hw/qib/qib_sd7220.c b/drivers/infiniband/hw/qib/qib_sd7220.c new file mode 100644 index 000000000..1dc3ccf0c --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_sd7220.c @@ -0,0 +1,1445 @@ +/* + * Copyright (c) 2013 Intel Corporation. All rights reserved. + * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +/* + * This file contains all of the code that is specific to the SerDes + * on the QLogic_IB 7220 chip. + */ + +#include <linux/pci.h> +#include <linux/delay.h> +#include <linux/module.h> +#include <linux/firmware.h> + +#include "qib.h" +#include "qib_7220.h" + +#define SD7220_FW_NAME "qlogic/sd7220.fw" +MODULE_FIRMWARE(SD7220_FW_NAME); + +/* + * Same as in qib_iba7220.c, but just the registers needed here. + * Could move whole set to qib_7220.h, but decided better to keep + * local. + */ +#define KREG_IDX(regname) (QIB_7220_##regname##_OFFS / sizeof(u64)) +#define kr_hwerrclear KREG_IDX(HwErrClear) +#define kr_hwerrmask KREG_IDX(HwErrMask) +#define kr_hwerrstatus KREG_IDX(HwErrStatus) +#define kr_ibcstatus KREG_IDX(IBCStatus) +#define kr_ibserdesctrl KREG_IDX(IBSerDesCtrl) +#define kr_scratch KREG_IDX(Scratch) +#define kr_xgxs_cfg KREG_IDX(XGXSCfg) +/* these are used only here, not in qib_iba7220.c */ +#define kr_ibsd_epb_access_ctrl KREG_IDX(ibsd_epb_access_ctrl) +#define kr_ibsd_epb_transaction_reg KREG_IDX(ibsd_epb_transaction_reg) +#define kr_pciesd_epb_transaction_reg KREG_IDX(pciesd_epb_transaction_reg) +#define kr_pciesd_epb_access_ctrl KREG_IDX(pciesd_epb_access_ctrl) +#define kr_serdes_ddsrxeq0 KREG_IDX(SerDes_DDSRXEQ0) + +/* + * The IBSerDesMappTable is a memory that holds values to be stored in + * various SerDes registers by IBC. + */ +#define kr_serdes_maptable KREG_IDX(IBSerDesMappTable) + +/* + * Below used for sdnum parameter, selecting one of the two sections + * used for PCIe, or the single SerDes used for IB. + */ +#define PCIE_SERDES0 0 +#define PCIE_SERDES1 1 + +/* + * The EPB requires addressing in a particular form. EPB_LOC() is intended + * to make #definitions a little more readable. + */ +#define EPB_ADDR_SHF 8 +#define EPB_LOC(chn, elt, reg) \ + (((elt & 0xf) | ((chn & 7) << 4) | ((reg & 0x3f) << 9)) << \ + EPB_ADDR_SHF) +#define EPB_IB_QUAD0_CS_SHF (25) +#define EPB_IB_QUAD0_CS (1U << EPB_IB_QUAD0_CS_SHF) +#define EPB_IB_UC_CS_SHF (26) +#define EPB_PCIE_UC_CS_SHF (27) +#define EPB_GLOBAL_WR (1U << (EPB_ADDR_SHF + 8)) + +/* Forward declarations. */ +static int qib_sd7220_reg_mod(struct qib_devdata *dd, int sdnum, u32 loc, + u32 data, u32 mask); +static int ibsd_mod_allchnls(struct qib_devdata *dd, int loc, int val, + int mask); +static int qib_sd_trimdone_poll(struct qib_devdata *dd); +static void qib_sd_trimdone_monitor(struct qib_devdata *dd, const char *where); +static int qib_sd_setvals(struct qib_devdata *dd); +static int qib_sd_early(struct qib_devdata *dd); +static int qib_sd_dactrim(struct qib_devdata *dd); +static int qib_internal_presets(struct qib_devdata *dd); +/* Tweak the register (CMUCTRL5) that contains the TRIMSELF controls */ +static int qib_sd_trimself(struct qib_devdata *dd, int val); +static int epb_access(struct qib_devdata *dd, int sdnum, int claim); +static int qib_sd7220_ib_load(struct qib_devdata *dd, + const struct firmware *fw); +static int qib_sd7220_ib_vfy(struct qib_devdata *dd, + const struct firmware *fw); + +/* + * Below keeps track of whether the "once per power-on" initialization has + * been done, because uC code Version 1.32.17 or higher allows the uC to + * be reset at will, and Automatic Equalization may require it. So the + * state of the reset "pin", is no longer valid. Instead, we check for the + * actual uC code having been loaded. + */ +static int qib_ibsd_ucode_loaded(struct qib_pportdata *ppd, + const struct firmware *fw) +{ + struct qib_devdata *dd = ppd->dd; + + if (!dd->cspec->serdes_first_init_done && + qib_sd7220_ib_vfy(dd, fw) > 0) + dd->cspec->serdes_first_init_done = 1; + return dd->cspec->serdes_first_init_done; +} + +/* repeat #define for local use. "Real" #define is in qib_iba7220.c */ +#define QLOGIC_IB_HWE_IB_UC_MEMORYPARITYERR 0x0000004000000000ULL +#define IB_MPREG5 (EPB_LOC(6, 0, 0xE) | (1L << EPB_IB_UC_CS_SHF)) +#define IB_MPREG6 (EPB_LOC(6, 0, 0xF) | (1U << EPB_IB_UC_CS_SHF)) +#define UC_PAR_CLR_D 8 +#define UC_PAR_CLR_M 0xC +#define IB_CTRL2(chn) (EPB_LOC(chn, 7, 3) | EPB_IB_QUAD0_CS) +#define START_EQ1(chan) EPB_LOC(chan, 7, 0x27) + +void qib_sd7220_clr_ibpar(struct qib_devdata *dd) +{ + int ret; + + /* clear, then re-enable parity errs */ + ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, IB_MPREG6, + UC_PAR_CLR_D, UC_PAR_CLR_M); + if (ret < 0) { + qib_dev_err(dd, "Failed clearing IBSerDes Parity err\n"); + goto bail; + } + ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, IB_MPREG6, 0, + UC_PAR_CLR_M); + + qib_read_kreg32(dd, kr_scratch); + udelay(4); + qib_write_kreg(dd, kr_hwerrclear, + QLOGIC_IB_HWE_IB_UC_MEMORYPARITYERR); + qib_read_kreg32(dd, kr_scratch); +bail: + return; +} + +/* + * After a reset or other unusual event, the epb interface may need + * to be re-synchronized, between the host and the uC. + * returns <0 for failure to resync within IBSD_RESYNC_TRIES (not expected) + */ +#define IBSD_RESYNC_TRIES 3 +#define IB_PGUDP(chn) (EPB_LOC((chn), 2, 1) | EPB_IB_QUAD0_CS) +#define IB_CMUDONE(chn) (EPB_LOC((chn), 7, 0xF) | EPB_IB_QUAD0_CS) + +static int qib_resync_ibepb(struct qib_devdata *dd) +{ + int ret, pat, tries, chn; + u32 loc; + + ret = -1; + chn = 0; + for (tries = 0; tries < (4 * IBSD_RESYNC_TRIES); ++tries) { + loc = IB_PGUDP(chn); + ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, loc, 0, 0); + if (ret < 0) { + qib_dev_err(dd, "Failed read in resync\n"); + continue; + } + if (ret != 0xF0 && ret != 0x55 && tries == 0) + qib_dev_err(dd, "unexpected pattern in resync\n"); + pat = ret ^ 0xA5; /* alternate F0 and 55 */ + ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, loc, pat, 0xFF); + if (ret < 0) { + qib_dev_err(dd, "Failed write in resync\n"); + continue; + } + ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, loc, 0, 0); + if (ret < 0) { + qib_dev_err(dd, "Failed re-read in resync\n"); + continue; + } + if (ret != pat) { + qib_dev_err(dd, "Failed compare1 in resync\n"); + continue; + } + loc = IB_CMUDONE(chn); + ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, loc, 0, 0); + if (ret < 0) { + qib_dev_err(dd, "Failed CMUDONE rd in resync\n"); + continue; + } + if ((ret & 0x70) != ((chn << 4) | 0x40)) { + qib_dev_err(dd, "Bad CMUDONE value %02X, chn %d\n", + ret, chn); + continue; + } + if (++chn == 4) + break; /* Success */ + } + return (ret > 0) ? 0 : ret; +} + +/* + * Localize the stuff that should be done to change IB uC reset + * returns <0 for errors. + */ +static int qib_ibsd_reset(struct qib_devdata *dd, int assert_rst) +{ + u64 rst_val; + int ret = 0; + unsigned long flags; + + rst_val = qib_read_kreg64(dd, kr_ibserdesctrl); + if (assert_rst) { + /* + * Vendor recommends "interrupting" uC before reset, to + * minimize possible glitches. + */ + spin_lock_irqsave(&dd->cspec->sdepb_lock, flags); + epb_access(dd, IB_7220_SERDES, 1); + rst_val |= 1ULL; + /* Squelch possible parity error from _asserting_ reset */ + qib_write_kreg(dd, kr_hwerrmask, + dd->cspec->hwerrmask & + ~QLOGIC_IB_HWE_IB_UC_MEMORYPARITYERR); + qib_write_kreg(dd, kr_ibserdesctrl, rst_val); + /* flush write, delay to ensure it took effect */ + qib_read_kreg32(dd, kr_scratch); + udelay(2); + /* once it's reset, can remove interrupt */ + epb_access(dd, IB_7220_SERDES, -1); + spin_unlock_irqrestore(&dd->cspec->sdepb_lock, flags); + } else { + /* + * Before we de-assert reset, we need to deal with + * possible glitch on the Parity-error line. + * Suppress it around the reset, both in chip-level + * hwerrmask and in IB uC control reg. uC will allow + * it again during startup. + */ + u64 val; + + rst_val &= ~(1ULL); + qib_write_kreg(dd, kr_hwerrmask, + dd->cspec->hwerrmask & + ~QLOGIC_IB_HWE_IB_UC_MEMORYPARITYERR); + + ret = qib_resync_ibepb(dd); + if (ret < 0) + qib_dev_err(dd, "unable to re-sync IB EPB\n"); + + /* set uC control regs to suppress parity errs */ + ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, IB_MPREG5, 1, 1); + if (ret < 0) + goto bail; + /* IB uC code past Version 1.32.17 allow suppression of wdog */ + ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, IB_MPREG6, 0x80, + 0x80); + if (ret < 0) { + qib_dev_err(dd, "Failed to set WDOG disable\n"); + goto bail; + } + qib_write_kreg(dd, kr_ibserdesctrl, rst_val); + /* flush write, delay for startup */ + qib_read_kreg32(dd, kr_scratch); + udelay(1); + /* clear, then re-enable parity errs */ + qib_sd7220_clr_ibpar(dd); + val = qib_read_kreg64(dd, kr_hwerrstatus); + if (val & QLOGIC_IB_HWE_IB_UC_MEMORYPARITYERR) { + qib_dev_err(dd, "IBUC Parity still set after RST\n"); + dd->cspec->hwerrmask &= + ~QLOGIC_IB_HWE_IB_UC_MEMORYPARITYERR; + } + qib_write_kreg(dd, kr_hwerrmask, + dd->cspec->hwerrmask); + } + +bail: + return ret; +} + +static void qib_sd_trimdone_monitor(struct qib_devdata *dd, + const char *where) +{ + int ret, chn, baduns; + u64 val; + + if (!where) + where = "?"; + + /* give time for reset to settle out in EPB */ + udelay(2); + + ret = qib_resync_ibepb(dd); + if (ret < 0) + qib_dev_err(dd, "not able to re-sync IB EPB (%s)\n", where); + + /* Do "sacrificial read" to get EPB in sane state after reset */ + ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, IB_CTRL2(0), 0, 0); + if (ret < 0) + qib_dev_err(dd, "Failed TRIMDONE 1st read, (%s)\n", where); + + /* Check/show "summary" Trim-done bit in IBCStatus */ + val = qib_read_kreg64(dd, kr_ibcstatus); + if (!(val & (1ULL << 11))) + qib_dev_err(dd, "IBCS TRIMDONE clear (%s)\n", where); + /* + * Do "dummy read/mod/wr" to get EPB in sane state after reset + * The default value for MPREG6 is 0. + */ + udelay(2); + + ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, IB_MPREG6, 0x80, 0x80); + if (ret < 0) + qib_dev_err(dd, "Failed Dummy RMW, (%s)\n", where); + udelay(10); + + baduns = 0; + + for (chn = 3; chn >= 0; --chn) { + /* Read CTRL reg for each channel to check TRIMDONE */ + ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, + IB_CTRL2(chn), 0, 0); + if (ret < 0) + qib_dev_err(dd, + "Failed checking TRIMDONE, chn %d (%s)\n", + chn, where); + + if (!(ret & 0x10)) { + int probe; + + baduns |= (1 << chn); + qib_dev_err(dd, + "TRIMDONE cleared on chn %d (%02X). (%s)\n", + chn, ret, where); + probe = qib_sd7220_reg_mod(dd, IB_7220_SERDES, + IB_PGUDP(0), 0, 0); + qib_dev_err(dd, "probe is %d (%02X)\n", + probe, probe); + probe = qib_sd7220_reg_mod(dd, IB_7220_SERDES, + IB_CTRL2(chn), 0, 0); + qib_dev_err(dd, "re-read: %d (%02X)\n", + probe, probe); + ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, + IB_CTRL2(chn), 0x10, 0x10); + if (ret < 0) + qib_dev_err(dd, + "Err on TRIMDONE rewrite1\n"); + } + } + for (chn = 3; chn >= 0; --chn) { + /* Read CTRL reg for each channel to check TRIMDONE */ + if (baduns & (1 << chn)) { + qib_dev_err(dd, + "Resetting TRIMDONE on chn %d (%s)\n", + chn, where); + ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, + IB_CTRL2(chn), 0x10, 0x10); + if (ret < 0) + qib_dev_err(dd, + "Failed re-setting TRIMDONE, chn %d (%s)\n", + chn, where); + } + } +} + +/* + * Below is portion of IBA7220-specific bringup_serdes() that actually + * deals with registers and memory within the SerDes itself. + * Post IB uC code version 1.32.17, was_reset being 1 is not really + * informative, so we double-check. + */ +int qib_sd7220_init(struct qib_devdata *dd) +{ + const struct firmware *fw; + int ret = 1; /* default to failure */ + int first_reset, was_reset; + + /* SERDES MPU reset recorded in D0 */ + was_reset = (qib_read_kreg64(dd, kr_ibserdesctrl) & 1); + if (!was_reset) { + /* entered with reset not asserted, we need to do it */ + qib_ibsd_reset(dd, 1); + qib_sd_trimdone_monitor(dd, "Driver-reload"); + } + + ret = request_firmware(&fw, SD7220_FW_NAME, &dd->pcidev->dev); + if (ret) { + qib_dev_err(dd, "Failed to load IB SERDES image\n"); + goto done; + } + + /* Substitute our deduced value for was_reset */ + ret = qib_ibsd_ucode_loaded(dd->pport, fw); + if (ret < 0) + goto bail; + + first_reset = !ret; /* First reset if IBSD uCode not yet loaded */ + /* + * Alter some regs per vendor latest doc, reset-defaults + * are not right for IB. + */ + ret = qib_sd_early(dd); + if (ret < 0) { + qib_dev_err(dd, "Failed to set IB SERDES early defaults\n"); + goto bail; + } + /* + * Set DAC manual trim IB. + * We only do this once after chip has been reset (usually + * same as once per system boot). + */ + if (first_reset) { + ret = qib_sd_dactrim(dd); + if (ret < 0) { + qib_dev_err(dd, "Failed IB SERDES DAC trim\n"); + goto bail; + } + } + /* + * Set various registers (DDS and RXEQ) that will be + * controlled by IBC (in 1.2 mode) to reasonable preset values + * Calling the "internal" version avoids the "check for needed" + * and "trimdone monitor" that might be counter-productive. + */ + ret = qib_internal_presets(dd); + if (ret < 0) { + qib_dev_err(dd, "Failed to set IB SERDES presets\n"); + goto bail; + } + ret = qib_sd_trimself(dd, 0x80); + if (ret < 0) { + qib_dev_err(dd, "Failed to set IB SERDES TRIMSELF\n"); + goto bail; + } + + /* Load image, then try to verify */ + ret = 0; /* Assume success */ + if (first_reset) { + int vfy; + int trim_done; + + ret = qib_sd7220_ib_load(dd, fw); + if (ret < 0) { + qib_dev_err(dd, "Failed to load IB SERDES image\n"); + goto bail; + } else { + /* Loaded image, try to verify */ + vfy = qib_sd7220_ib_vfy(dd, fw); + if (vfy != ret) { + qib_dev_err(dd, "SERDES PRAM VFY failed\n"); + goto bail; + } /* end if verified */ + } /* end if loaded */ + + /* + * Loaded and verified. Almost good... + * hold "success" in ret + */ + ret = 0; + /* + * Prev steps all worked, continue bringup + * De-assert RESET to uC, only in first reset, to allow + * trimming. + * + * Since our default setup sets START_EQ1 to + * PRESET, we need to clear that for this very first run. + */ + ret = ibsd_mod_allchnls(dd, START_EQ1(0), 0, 0x38); + if (ret < 0) { + qib_dev_err(dd, "Failed clearing START_EQ1\n"); + goto bail; + } + + qib_ibsd_reset(dd, 0); + /* + * If this is not the first reset, trimdone should be set + * already. We may need to check about this. + */ + trim_done = qib_sd_trimdone_poll(dd); + /* + * Whether or not trimdone succeeded, we need to put the + * uC back into reset to avoid a possible fight with the + * IBC state-machine. + */ + qib_ibsd_reset(dd, 1); + + if (!trim_done) { + qib_dev_err(dd, "No TRIMDONE seen\n"); + goto bail; + } + /* + * DEBUG: check each time we reset if trimdone bits have + * gotten cleared, and re-set them. + */ + qib_sd_trimdone_monitor(dd, "First-reset"); + /* Remember so we do not re-do the load, dactrim, etc. */ + dd->cspec->serdes_first_init_done = 1; + } + /* + * setup for channel training and load values for + * RxEq and DDS in tables used by IBC in IB1.2 mode + */ + ret = 0; + if (qib_sd_setvals(dd) >= 0) + goto done; +bail: + ret = 1; +done: + /* start relock timer regardless, but start at 1 second */ + set_7220_relock_poll(dd, -1); + + release_firmware(fw); + return ret; +} + +#define EPB_ACC_REQ 1 +#define EPB_ACC_GNT 0x100 +#define EPB_DATA_MASK 0xFF +#define EPB_RD (1ULL << 24) +#define EPB_TRANS_RDY (1ULL << 31) +#define EPB_TRANS_ERR (1ULL << 30) +#define EPB_TRANS_TRIES 5 + +/* + * query, claim, release ownership of the EPB (External Parallel Bus) + * for a specified SERDES. + * the "claim" parameter is >0 to claim, <0 to release, 0 to query. + * Returns <0 for errors, >0 if we had ownership, else 0. + */ +static int epb_access(struct qib_devdata *dd, int sdnum, int claim) +{ + u16 acc; + u64 accval; + int owned = 0; + u64 oct_sel = 0; + + switch (sdnum) { + case IB_7220_SERDES: + /* + * The IB SERDES "ownership" is fairly simple. A single each + * request/grant. + */ + acc = kr_ibsd_epb_access_ctrl; + break; + + case PCIE_SERDES0: + case PCIE_SERDES1: + /* PCIe SERDES has two "octants", need to select which */ + acc = kr_pciesd_epb_access_ctrl; + oct_sel = (2 << (sdnum - PCIE_SERDES0)); + break; + + default: + return 0; + } + + /* Make sure any outstanding transaction was seen */ + qib_read_kreg32(dd, kr_scratch); + udelay(15); + + accval = qib_read_kreg32(dd, acc); + + owned = !!(accval & EPB_ACC_GNT); + if (claim < 0) { + /* Need to release */ + u64 pollval; + /* + * The only writable bits are the request and CS. + * Both should be clear + */ + u64 newval = 0; + + qib_write_kreg(dd, acc, newval); + /* First read after write is not trustworthy */ + pollval = qib_read_kreg32(dd, acc); + udelay(5); + pollval = qib_read_kreg32(dd, acc); + if (pollval & EPB_ACC_GNT) + owned = -1; + } else if (claim > 0) { + /* Need to claim */ + u64 pollval; + u64 newval = EPB_ACC_REQ | oct_sel; + + qib_write_kreg(dd, acc, newval); + /* First read after write is not trustworthy */ + pollval = qib_read_kreg32(dd, acc); + udelay(5); + pollval = qib_read_kreg32(dd, acc); + if (!(pollval & EPB_ACC_GNT)) + owned = -1; + } + return owned; +} + +/* + * Lemma to deal with race condition of write..read to epb regs + */ +static int epb_trans(struct qib_devdata *dd, u16 reg, u64 i_val, u64 *o_vp) +{ + int tries; + u64 transval; + + qib_write_kreg(dd, reg, i_val); + /* Throw away first read, as RDY bit may be stale */ + transval = qib_read_kreg64(dd, reg); + + for (tries = EPB_TRANS_TRIES; tries; --tries) { + transval = qib_read_kreg32(dd, reg); + if (transval & EPB_TRANS_RDY) + break; + udelay(5); + } + if (transval & EPB_TRANS_ERR) + return -1; + if (tries > 0 && o_vp) + *o_vp = transval; + return tries; +} + +/** + * qib_sd7220_reg_mod - modify SERDES register + * @dd: the qlogic_ib device + * @sdnum: which SERDES to access + * @loc: location - channel, element, register, as packed by EPB_LOC() macro. + * @wd: Write Data - value to set in register + * @mask: ones where data should be spliced into reg. + * + * Basic register read/modify/write, with un-needed acesses elided. That is, + * a mask of zero will prevent write, while a mask of 0xFF will prevent read. + * returns current (presumed, if a write was done) contents of selected + * register, or <0 if errors. + */ +static int qib_sd7220_reg_mod(struct qib_devdata *dd, int sdnum, u32 loc, + u32 wd, u32 mask) +{ + u16 trans; + u64 transval; + int owned; + int tries, ret; + unsigned long flags; + + switch (sdnum) { + case IB_7220_SERDES: + trans = kr_ibsd_epb_transaction_reg; + break; + + case PCIE_SERDES0: + case PCIE_SERDES1: + trans = kr_pciesd_epb_transaction_reg; + break; + + default: + return -1; + } + + /* + * All access is locked in software (vs other host threads) and + * hardware (vs uC access). + */ + spin_lock_irqsave(&dd->cspec->sdepb_lock, flags); + + owned = epb_access(dd, sdnum, 1); + if (owned < 0) { + spin_unlock_irqrestore(&dd->cspec->sdepb_lock, flags); + return -1; + } + for (tries = EPB_TRANS_TRIES; tries; --tries) { + transval = qib_read_kreg32(dd, trans); + if (transval & EPB_TRANS_RDY) + break; + udelay(5); + } + + if (tries > 0) { + tries = 1; /* to make read-skip work */ + if (mask != 0xFF) { + /* + * Not a pure write, so need to read. + * loc encodes chip-select as well as address + */ + transval = loc | EPB_RD; + tries = epb_trans(dd, trans, transval, &transval); + } + if (tries > 0 && mask != 0) { + /* + * Not a pure read, so need to write. + */ + wd = (wd & mask) | (transval & ~mask); + transval = loc | (wd & EPB_DATA_MASK); + tries = epb_trans(dd, trans, transval, &transval); + } + } + /* else, failed to see ready, what error-handling? */ + + /* + * Release bus. Failure is an error. + */ + if (epb_access(dd, sdnum, -1) < 0) + ret = -1; + else + ret = transval & EPB_DATA_MASK; + + spin_unlock_irqrestore(&dd->cspec->sdepb_lock, flags); + if (tries <= 0) + ret = -1; + return ret; +} + +#define EPB_ROM_R (2) +#define EPB_ROM_W (1) +/* + * Below, all uC-related, use appropriate UC_CS, depending + * on which SerDes is used. + */ +#define EPB_UC_CTL EPB_LOC(6, 0, 0) +#define EPB_MADDRL EPB_LOC(6, 0, 2) +#define EPB_MADDRH EPB_LOC(6, 0, 3) +#define EPB_ROMDATA EPB_LOC(6, 0, 4) +#define EPB_RAMDATA EPB_LOC(6, 0, 5) + +/* Transfer date to/from uC Program RAM of IB or PCIe SerDes */ +static int qib_sd7220_ram_xfer(struct qib_devdata *dd, int sdnum, u32 loc, + u8 *buf, int cnt, int rd_notwr) +{ + u16 trans; + u64 transval; + u64 csbit; + int owned; + int tries; + int sofar; + int addr; + int ret; + unsigned long flags; + + /* Pick appropriate transaction reg and "Chip select" for this serdes */ + switch (sdnum) { + case IB_7220_SERDES: + csbit = 1ULL << EPB_IB_UC_CS_SHF; + trans = kr_ibsd_epb_transaction_reg; + break; + + case PCIE_SERDES0: + case PCIE_SERDES1: + /* PCIe SERDES has uC "chip select" in different bit, too */ + csbit = 1ULL << EPB_PCIE_UC_CS_SHF; + trans = kr_pciesd_epb_transaction_reg; + break; + + default: + return -1; + } + + spin_lock_irqsave(&dd->cspec->sdepb_lock, flags); + + owned = epb_access(dd, sdnum, 1); + if (owned < 0) { + spin_unlock_irqrestore(&dd->cspec->sdepb_lock, flags); + return -1; + } + + /* + * In future code, we may need to distinguish several address ranges, + * and select various memories based on this. For now, just trim + * "loc" (location including address and memory select) to + * "addr" (address within memory). we will only support PRAM + * The memory is 8KB. + */ + addr = loc & 0x1FFF; + for (tries = EPB_TRANS_TRIES; tries; --tries) { + transval = qib_read_kreg32(dd, trans); + if (transval & EPB_TRANS_RDY) + break; + udelay(5); + } + + sofar = 0; + if (tries > 0) { + /* + * Every "memory" access is doubly-indirect. + * We set two bytes of address, then read/write + * one or mores bytes of data. + */ + + /* First, we set control to "Read" or "Write" */ + transval = csbit | EPB_UC_CTL | + (rd_notwr ? EPB_ROM_R : EPB_ROM_W); + tries = epb_trans(dd, trans, transval, &transval); + while (tries > 0 && sofar < cnt) { + if (!sofar) { + /* Only set address at start of chunk */ + int addrbyte = (addr + sofar) >> 8; + + transval = csbit | EPB_MADDRH | addrbyte; + tries = epb_trans(dd, trans, transval, + &transval); + if (tries <= 0) + break; + addrbyte = (addr + sofar) & 0xFF; + transval = csbit | EPB_MADDRL | addrbyte; + tries = epb_trans(dd, trans, transval, + &transval); + if (tries <= 0) + break; + } + + if (rd_notwr) + transval = csbit | EPB_ROMDATA | EPB_RD; + else + transval = csbit | EPB_ROMDATA | buf[sofar]; + tries = epb_trans(dd, trans, transval, &transval); + if (tries <= 0) + break; + if (rd_notwr) + buf[sofar] = transval & EPB_DATA_MASK; + ++sofar; + } + /* Finally, clear control-bit for Read or Write */ + transval = csbit | EPB_UC_CTL; + tries = epb_trans(dd, trans, transval, &transval); + } + + ret = sofar; + /* Release bus. Failure is an error */ + if (epb_access(dd, sdnum, -1) < 0) + ret = -1; + + spin_unlock_irqrestore(&dd->cspec->sdepb_lock, flags); + if (tries <= 0) + ret = -1; + return ret; +} + +#define PROG_CHUNK 64 + +static int qib_sd7220_prog_ld(struct qib_devdata *dd, int sdnum, + const u8 *img, int len, int offset) +{ + int cnt, sofar, req; + + sofar = 0; + while (sofar < len) { + req = len - sofar; + if (req > PROG_CHUNK) + req = PROG_CHUNK; + cnt = qib_sd7220_ram_xfer(dd, sdnum, offset + sofar, + (u8 *)img + sofar, req, 0); + if (cnt < req) { + sofar = -1; + break; + } + sofar += req; + } + return sofar; +} + +#define VFY_CHUNK 64 +#define SD_PRAM_ERROR_LIMIT 42 + +static int qib_sd7220_prog_vfy(struct qib_devdata *dd, int sdnum, + const u8 *img, int len, int offset) +{ + int cnt, sofar, req, idx, errors; + unsigned char readback[VFY_CHUNK]; + + errors = 0; + sofar = 0; + while (sofar < len) { + req = len - sofar; + if (req > VFY_CHUNK) + req = VFY_CHUNK; + cnt = qib_sd7220_ram_xfer(dd, sdnum, sofar + offset, + readback, req, 1); + if (cnt < req) { + /* failed in read itself */ + sofar = -1; + break; + } + for (idx = 0; idx < cnt; ++idx) { + if (readback[idx] != img[idx+sofar]) + ++errors; + } + sofar += cnt; + } + return errors ? -errors : sofar; +} + +static int +qib_sd7220_ib_load(struct qib_devdata *dd, const struct firmware *fw) +{ + return qib_sd7220_prog_ld(dd, IB_7220_SERDES, fw->data, fw->size, 0); +} + +static int +qib_sd7220_ib_vfy(struct qib_devdata *dd, const struct firmware *fw) +{ + return qib_sd7220_prog_vfy(dd, IB_7220_SERDES, fw->data, fw->size, 0); +} + +/* + * IRQ not set up at this point in init, so we poll. + */ +#define IB_SERDES_TRIM_DONE (1ULL << 11) +#define TRIM_TMO (15) + +static int qib_sd_trimdone_poll(struct qib_devdata *dd) +{ + int trim_tmo, ret; + uint64_t val; + + /* + * Default to failure, so IBC will not start + * without IB_SERDES_TRIM_DONE. + */ + ret = 0; + for (trim_tmo = 0; trim_tmo < TRIM_TMO; ++trim_tmo) { + val = qib_read_kreg64(dd, kr_ibcstatus); + if (val & IB_SERDES_TRIM_DONE) { + ret = 1; + break; + } + msleep(20); + } + if (trim_tmo >= TRIM_TMO) { + qib_dev_err(dd, "No TRIMDONE in %d tries\n", trim_tmo); + ret = 0; + } + return ret; +} + +#define TX_FAST_ELT (9) + +/* + * Set the "negotiation" values for SERDES. These are used by the IB1.2 + * link negotiation. Macros below are attempt to keep the values a + * little more human-editable. + * First, values related to Drive De-emphasis Settings. + */ + +#define NUM_DDS_REGS 6 +#define DDS_REG_MAP 0x76A910 /* LSB-first list of regs (in elt 9) to mod */ + +#define DDS_VAL(amp_d, main_d, ipst_d, ipre_d, amp_s, main_s, ipst_s, ipre_s) \ + { { ((amp_d & 0x1F) << 1) | 1, ((amp_s & 0x1F) << 1) | 1, \ + (main_d << 3) | 4 | (ipre_d >> 2), \ + (main_s << 3) | 4 | (ipre_s >> 2), \ + ((ipst_d & 0xF) << 1) | ((ipre_d & 3) << 6) | 0x21, \ + ((ipst_s & 0xF) << 1) | ((ipre_s & 3) << 6) | 0x21 } } + +static struct dds_init { + uint8_t reg_vals[NUM_DDS_REGS]; +} dds_init_vals[] = { + /* DDR(FDR) SDR(HDR) */ + /* Vendor recommends below for 3m cable */ +#define DDS_3M 0 + DDS_VAL(31, 19, 12, 0, 29, 22, 9, 0), + DDS_VAL(31, 12, 15, 4, 31, 15, 15, 1), + DDS_VAL(31, 13, 15, 3, 31, 16, 15, 0), + DDS_VAL(31, 14, 15, 2, 31, 17, 14, 0), + DDS_VAL(31, 15, 15, 1, 31, 18, 13, 0), + DDS_VAL(31, 16, 15, 0, 31, 19, 12, 0), + DDS_VAL(31, 17, 14, 0, 31, 20, 11, 0), + DDS_VAL(31, 18, 13, 0, 30, 21, 10, 0), + DDS_VAL(31, 20, 11, 0, 28, 23, 8, 0), + DDS_VAL(31, 21, 10, 0, 27, 24, 7, 0), + DDS_VAL(31, 22, 9, 0, 26, 25, 6, 0), + DDS_VAL(30, 23, 8, 0, 25, 26, 5, 0), + DDS_VAL(29, 24, 7, 0, 23, 27, 4, 0), + /* Vendor recommends below for 1m cable */ +#define DDS_1M 13 + DDS_VAL(28, 25, 6, 0, 21, 28, 3, 0), + DDS_VAL(27, 26, 5, 0, 19, 29, 2, 0), + DDS_VAL(25, 27, 4, 0, 17, 30, 1, 0) +}; + +/* + * Now the RXEQ section of the table. + */ +/* Hardware packs an element number and register address thus: */ +#define RXEQ_INIT_RDESC(elt, addr) (((elt) & 0xF) | ((addr) << 4)) +#define RXEQ_VAL(elt, adr, val0, val1, val2, val3) \ + {RXEQ_INIT_RDESC((elt), (adr)), {(val0), (val1), (val2), (val3)} } + +#define RXEQ_VAL_ALL(elt, adr, val) \ + {RXEQ_INIT_RDESC((elt), (adr)), {(val), (val), (val), (val)} } + +#define RXEQ_SDR_DFELTH 0 +#define RXEQ_SDR_TLTH 0 +#define RXEQ_SDR_G1CNT_Z1CNT 0x11 +#define RXEQ_SDR_ZCNT 23 + +static struct rxeq_init { + u16 rdesc; /* in form used in SerDesDDSRXEQ */ + u8 rdata[4]; +} rxeq_init_vals[] = { + /* Set Rcv Eq. to Preset node */ + RXEQ_VAL_ALL(7, 0x27, 0x10), + /* Set DFELTHFDR/HDR thresholds */ + RXEQ_VAL(7, 8, 0, 0, 0, 0), /* FDR, was 0, 1, 2, 3 */ + RXEQ_VAL(7, 0x21, 0, 0, 0, 0), /* HDR */ + /* Set TLTHFDR/HDR theshold */ + RXEQ_VAL(7, 9, 2, 2, 2, 2), /* FDR, was 0, 2, 4, 6 */ + RXEQ_VAL(7, 0x23, 2, 2, 2, 2), /* HDR, was 0, 1, 2, 3 */ + /* Set Preamp setting 2 (ZFR/ZCNT) */ + RXEQ_VAL(7, 0x1B, 12, 12, 12, 12), /* FDR, was 12, 16, 20, 24 */ + RXEQ_VAL(7, 0x1C, 12, 12, 12, 12), /* HDR, was 12, 16, 20, 24 */ + /* Set Preamp DC gain and Setting 1 (GFR/GHR) */ + RXEQ_VAL(7, 0x1E, 16, 16, 16, 16), /* FDR, was 16, 17, 18, 20 */ + RXEQ_VAL(7, 0x1F, 16, 16, 16, 16), /* HDR, was 16, 17, 18, 20 */ + /* Toggle RELOCK (in VCDL_CTRL0) to lock to data */ + RXEQ_VAL_ALL(6, 6, 0x20), /* Set D5 High */ + RXEQ_VAL_ALL(6, 6, 0), /* Set D5 Low */ +}; + +/* There are 17 values from vendor, but IBC only accesses the first 16 */ +#define DDS_ROWS (16) +#define RXEQ_ROWS ARRAY_SIZE(rxeq_init_vals) + +static int qib_sd_setvals(struct qib_devdata *dd) +{ + int idx, midx; + int min_idx; /* Minimum index for this portion of table */ + uint32_t dds_reg_map; + u64 __iomem *taddr, *iaddr; + uint64_t data; + uint64_t sdctl; + + taddr = dd->kregbase + kr_serdes_maptable; + iaddr = dd->kregbase + kr_serdes_ddsrxeq0; + + /* + * Init the DDS section of the table. + * Each "row" of the table provokes NUM_DDS_REG writes, to the + * registers indicated in DDS_REG_MAP. + */ + sdctl = qib_read_kreg64(dd, kr_ibserdesctrl); + sdctl = (sdctl & ~(0x1f << 8)) | (NUM_DDS_REGS << 8); + sdctl = (sdctl & ~(0x1f << 13)) | (RXEQ_ROWS << 13); + qib_write_kreg(dd, kr_ibserdesctrl, sdctl); + + /* + * Iterate down table within loop for each register to store. + */ + dds_reg_map = DDS_REG_MAP; + for (idx = 0; idx < NUM_DDS_REGS; ++idx) { + data = ((dds_reg_map & 0xF) << 4) | TX_FAST_ELT; + writeq(data, iaddr + idx); + qib_read_kreg32(dd, kr_scratch); + dds_reg_map >>= 4; + for (midx = 0; midx < DDS_ROWS; ++midx) { + u64 __iomem *daddr = taddr + ((midx << 4) + idx); + + data = dds_init_vals[midx].reg_vals[idx]; + writeq(data, daddr); + qib_read_kreg32(dd, kr_scratch); + } /* End inner for (vals for this reg, each row) */ + } /* end outer for (regs to be stored) */ + + /* + * Init the RXEQ section of the table. + * This runs in a different order, as the pattern of + * register references is more complex, but there are only + * four "data" values per register. + */ + min_idx = idx; /* RXEQ indices pick up where DDS left off */ + taddr += 0x100; /* RXEQ data is in second half of table */ + /* Iterate through RXEQ register addresses */ + for (idx = 0; idx < RXEQ_ROWS; ++idx) { + int didx; /* "destination" */ + int vidx; + + /* didx is offset by min_idx to address RXEQ range of regs */ + didx = idx + min_idx; + /* Store the next RXEQ register address */ + writeq(rxeq_init_vals[idx].rdesc, iaddr + didx); + qib_read_kreg32(dd, kr_scratch); + /* Iterate through RXEQ values */ + for (vidx = 0; vidx < 4; vidx++) { + data = rxeq_init_vals[idx].rdata[vidx]; + writeq(data, taddr + (vidx << 6) + idx); + qib_read_kreg32(dd, kr_scratch); + } + } /* end outer for (Reg-writes for RXEQ) */ + return 0; +} + +#define CMUCTRL5 EPB_LOC(7, 0, 0x15) +#define RXHSCTRL0(chan) EPB_LOC(chan, 6, 0) +#define VCDL_DAC2(chan) EPB_LOC(chan, 6, 5) +#define VCDL_CTRL0(chan) EPB_LOC(chan, 6, 6) +#define VCDL_CTRL2(chan) EPB_LOC(chan, 6, 8) +#define START_EQ2(chan) EPB_LOC(chan, 7, 0x28) + +/* + * Repeat a "store" across all channels of the IB SerDes. + * Although nominally it inherits the "read value" of the last + * channel it modified, the only really useful return is <0 for + * failure, >= 0 for success. The parameter 'loc' is assumed to + * be the location in some channel of the register to be modified + * The caller can specify use of the "gang write" option of EPB, + * in which case we use the specified channel data for any fields + * not explicitely written. + */ +static int ibsd_mod_allchnls(struct qib_devdata *dd, int loc, int val, + int mask) +{ + int ret = -1; + int chnl; + + if (loc & EPB_GLOBAL_WR) { + /* + * Our caller has assured us that we can set all four + * channels at once. Trust that. If mask is not 0xFF, + * we will read the _specified_ channel for our starting + * value. + */ + loc |= (1U << EPB_IB_QUAD0_CS_SHF); + chnl = (loc >> (4 + EPB_ADDR_SHF)) & 7; + if (mask != 0xFF) { + ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, + loc & ~EPB_GLOBAL_WR, 0, 0); + if (ret < 0) { + int sloc = loc >> EPB_ADDR_SHF; + + qib_dev_err(dd, + "pre-read failed: elt %d, addr 0x%X, chnl %d\n", + (sloc & 0xF), + (sloc >> 9) & 0x3f, chnl); + return ret; + } + val = (ret & ~mask) | (val & mask); + } + loc &= ~(7 << (4+EPB_ADDR_SHF)); + ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, loc, val, 0xFF); + if (ret < 0) { + int sloc = loc >> EPB_ADDR_SHF; + + qib_dev_err(dd, + "Global WR failed: elt %d, addr 0x%X, val %02X\n", + (sloc & 0xF), (sloc >> 9) & 0x3f, val); + } + return ret; + } + /* Clear "channel" and set CS so we can simply iterate */ + loc &= ~(7 << (4+EPB_ADDR_SHF)); + loc |= (1U << EPB_IB_QUAD0_CS_SHF); + for (chnl = 0; chnl < 4; ++chnl) { + int cloc = loc | (chnl << (4+EPB_ADDR_SHF)); + + ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, cloc, val, mask); + if (ret < 0) { + int sloc = loc >> EPB_ADDR_SHF; + + qib_dev_err(dd, + "Write failed: elt %d, addr 0x%X, chnl %d, val 0x%02X, mask 0x%02X\n", + (sloc & 0xF), (sloc >> 9) & 0x3f, chnl, + val & 0xFF, mask & 0xFF); + break; + } + } + return ret; +} + +/* + * Set the Tx values normally modified by IBC in IB1.2 mode to default + * values, as gotten from first row of init table. + */ +static int set_dds_vals(struct qib_devdata *dd, struct dds_init *ddi) +{ + int ret; + int idx, reg, data; + uint32_t regmap; + + regmap = DDS_REG_MAP; + for (idx = 0; idx < NUM_DDS_REGS; ++idx) { + reg = (regmap & 0xF); + regmap >>= 4; + data = ddi->reg_vals[idx]; + /* Vendor says RMW not needed for these regs, use 0xFF mask */ + ret = ibsd_mod_allchnls(dd, EPB_LOC(0, 9, reg), data, 0xFF); + if (ret < 0) + break; + } + return ret; +} + +/* + * Set the Rx values normally modified by IBC in IB1.2 mode to default + * values, as gotten from selected column of init table. + */ +static int set_rxeq_vals(struct qib_devdata *dd, int vsel) +{ + int ret; + int ridx; + int cnt = ARRAY_SIZE(rxeq_init_vals); + + for (ridx = 0; ridx < cnt; ++ridx) { + int elt, reg, val, loc; + + elt = rxeq_init_vals[ridx].rdesc & 0xF; + reg = rxeq_init_vals[ridx].rdesc >> 4; + loc = EPB_LOC(0, elt, reg); + val = rxeq_init_vals[ridx].rdata[vsel]; + /* mask of 0xFF, because hardware does full-byte store. */ + ret = ibsd_mod_allchnls(dd, loc, val, 0xFF); + if (ret < 0) + break; + } + return ret; +} + +/* + * Set the default values (row 0) for DDR Driver Demphasis. + * we do this initially and whenever we turn off IB-1.2 + * + * The "default" values for Rx equalization are also stored to + * SerDes registers. Formerly (and still default), we used set 2. + * For experimenting with cables and link-partners, we allow changing + * that via a module parameter. + */ +static unsigned qib_rxeq_set = 2; +module_param_named(rxeq_default_set, qib_rxeq_set, uint, + S_IWUSR | S_IRUGO); +MODULE_PARM_DESC(rxeq_default_set, + "Which set [0..3] of Rx Equalization values is default"); + +static int qib_internal_presets(struct qib_devdata *dd) +{ + int ret = 0; + + ret = set_dds_vals(dd, dds_init_vals + DDS_3M); + + if (ret < 0) + qib_dev_err(dd, "Failed to set default DDS values\n"); + ret = set_rxeq_vals(dd, qib_rxeq_set & 3); + if (ret < 0) + qib_dev_err(dd, "Failed to set default RXEQ values\n"); + return ret; +} + +int qib_sd7220_presets(struct qib_devdata *dd) +{ + int ret = 0; + + if (!dd->cspec->presets_needed) + return ret; + dd->cspec->presets_needed = 0; + /* Assert uC reset, so we don't clash with it. */ + qib_ibsd_reset(dd, 1); + udelay(2); + qib_sd_trimdone_monitor(dd, "link-down"); + + ret = qib_internal_presets(dd); + return ret; +} + +static int qib_sd_trimself(struct qib_devdata *dd, int val) +{ + int loc = CMUCTRL5 | (1U << EPB_IB_QUAD0_CS_SHF); + + return qib_sd7220_reg_mod(dd, IB_7220_SERDES, loc, val, 0xFF); +} + +static int qib_sd_early(struct qib_devdata *dd) +{ + int ret; + + ret = ibsd_mod_allchnls(dd, RXHSCTRL0(0) | EPB_GLOBAL_WR, 0xD4, 0xFF); + if (ret < 0) + goto bail; + ret = ibsd_mod_allchnls(dd, START_EQ1(0) | EPB_GLOBAL_WR, 0x10, 0xFF); + if (ret < 0) + goto bail; + ret = ibsd_mod_allchnls(dd, START_EQ2(0) | EPB_GLOBAL_WR, 0x30, 0xFF); +bail: + return ret; +} + +#define BACTRL(chnl) EPB_LOC(chnl, 6, 0x0E) +#define LDOUTCTRL1(chnl) EPB_LOC(chnl, 7, 6) +#define RXHSSTATUS(chnl) EPB_LOC(chnl, 6, 0xF) + +static int qib_sd_dactrim(struct qib_devdata *dd) +{ + int ret; + + ret = ibsd_mod_allchnls(dd, VCDL_DAC2(0) | EPB_GLOBAL_WR, 0x2D, 0xFF); + if (ret < 0) + goto bail; + + /* more fine-tuning of what will be default */ + ret = ibsd_mod_allchnls(dd, VCDL_CTRL2(0), 3, 0xF); + if (ret < 0) + goto bail; + + ret = ibsd_mod_allchnls(dd, BACTRL(0) | EPB_GLOBAL_WR, 0x40, 0xFF); + if (ret < 0) + goto bail; + + ret = ibsd_mod_allchnls(dd, LDOUTCTRL1(0) | EPB_GLOBAL_WR, 0x04, 0xFF); + if (ret < 0) + goto bail; + + ret = ibsd_mod_allchnls(dd, RXHSSTATUS(0) | EPB_GLOBAL_WR, 0x04, 0xFF); + if (ret < 0) + goto bail; + + /* + * Delay for max possible number of steps, with slop. + * Each step is about 4usec. + */ + udelay(415); + + ret = ibsd_mod_allchnls(dd, LDOUTCTRL1(0) | EPB_GLOBAL_WR, 0x00, 0xFF); + +bail: + return ret; +} + +#define RELOCK_FIRST_MS 3 +#define RXLSPPM(chan) EPB_LOC(chan, 0, 2) +void toggle_7220_rclkrls(struct qib_devdata *dd) +{ + int loc = RXLSPPM(0) | EPB_GLOBAL_WR; + int ret; + + ret = ibsd_mod_allchnls(dd, loc, 0, 0x80); + if (ret < 0) + qib_dev_err(dd, "RCLKRLS failed to clear D7\n"); + else { + udelay(1); + ibsd_mod_allchnls(dd, loc, 0x80, 0x80); + } + /* And again for good measure */ + udelay(1); + ret = ibsd_mod_allchnls(dd, loc, 0, 0x80); + if (ret < 0) + qib_dev_err(dd, "RCLKRLS failed to clear D7\n"); + else { + udelay(1); + ibsd_mod_allchnls(dd, loc, 0x80, 0x80); + } + /* Now reset xgxs and IBC to complete the recovery */ + dd->f_xgxs_reset(dd->pport); +} + +/* + * Shut down the timer that polls for relock occasions, if needed + * this is "hooked" from qib_7220_quiet_serdes(), which is called + * just before qib_shutdown_device() in qib_driver.c shuts down all + * the other timers + */ +void shutdown_7220_relock_poll(struct qib_devdata *dd) +{ + if (dd->cspec->relock_timer_active) + del_timer_sync(&dd->cspec->relock_timer); +} + +static unsigned qib_relock_by_timer = 1; +module_param_named(relock_by_timer, qib_relock_by_timer, uint, + S_IWUSR | S_IRUGO); +MODULE_PARM_DESC(relock_by_timer, "Allow relock attempt if link not up"); + +static void qib_run_relock(struct timer_list *t) +{ + struct qib_chip_specific *cs = from_timer(cs, t, relock_timer); + struct qib_devdata *dd = cs->dd; + struct qib_pportdata *ppd = dd->pport; + int timeoff; + + /* + * Check link-training state for "stuck" state, when down. + * if found, try relock and schedule another try at + * exponentially growing delay, maxed at one second. + * if not stuck, our work is done. + */ + if ((dd->flags & QIB_INITTED) && !(ppd->lflags & + (QIBL_IB_AUTONEG_INPROG | QIBL_LINKINIT | QIBL_LINKARMED | + QIBL_LINKACTIVE))) { + if (qib_relock_by_timer) { + if (!(ppd->lflags & QIBL_IB_LINK_DISABLED)) + toggle_7220_rclkrls(dd); + } + /* re-set timer for next check */ + timeoff = cs->relock_interval << 1; + if (timeoff > HZ) + timeoff = HZ; + cs->relock_interval = timeoff; + } else + timeoff = HZ; + mod_timer(&cs->relock_timer, jiffies + timeoff); +} + +void set_7220_relock_poll(struct qib_devdata *dd, int ibup) +{ + struct qib_chip_specific *cs = dd->cspec; + + if (ibup) { + /* We are now up, relax timer to 1 second interval */ + if (cs->relock_timer_active) { + cs->relock_interval = HZ; + mod_timer(&cs->relock_timer, jiffies + HZ); + } + } else { + /* Transition to down, (re-)set timer to short interval. */ + unsigned int timeout; + + timeout = msecs_to_jiffies(RELOCK_FIRST_MS); + if (timeout == 0) + timeout = 1; + /* If timer has not yet been started, do so. */ + if (!cs->relock_timer_active) { + cs->relock_timer_active = 1; + timer_setup(&cs->relock_timer, qib_run_relock, 0); + cs->relock_interval = timeout; + cs->relock_timer.expires = jiffies + timeout; + add_timer(&cs->relock_timer); + } else { + cs->relock_interval = timeout; + mod_timer(&cs->relock_timer, jiffies + timeout); + } + } +} diff --git a/drivers/infiniband/hw/qib/qib_sdma.c b/drivers/infiniband/hw/qib/qib_sdma.c new file mode 100644 index 000000000..5e86cbf7d --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_sdma.c @@ -0,0 +1,999 @@ +/* + * Copyright (c) 2012 Intel Corporation. All rights reserved. + * Copyright (c) 2007 - 2012 QLogic Corporation. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/spinlock.h> +#include <linux/netdevice.h> +#include <linux/moduleparam.h> + +#include "qib.h" +#include "qib_common.h" + +/* default pio off, sdma on */ +static ushort sdma_descq_cnt = 256; +module_param_named(sdma_descq_cnt, sdma_descq_cnt, ushort, S_IRUGO); +MODULE_PARM_DESC(sdma_descq_cnt, "Number of SDMA descq entries"); + +/* + * Bits defined in the send DMA descriptor. + */ +#define SDMA_DESC_LAST (1ULL << 11) +#define SDMA_DESC_FIRST (1ULL << 12) +#define SDMA_DESC_DMA_HEAD (1ULL << 13) +#define SDMA_DESC_USE_LARGE_BUF (1ULL << 14) +#define SDMA_DESC_INTR (1ULL << 15) +#define SDMA_DESC_COUNT_LSB 16 +#define SDMA_DESC_GEN_LSB 30 + +/* declare all statics here rather than keep sorting */ +static int alloc_sdma(struct qib_pportdata *); +static void sdma_complete(struct kref *); +static void sdma_finalput(struct qib_sdma_state *); +static void sdma_get(struct qib_sdma_state *); +static void sdma_put(struct qib_sdma_state *); +static void sdma_set_state(struct qib_pportdata *, enum qib_sdma_states); +static void sdma_start_sw_clean_up(struct qib_pportdata *); +static void sdma_sw_clean_up_task(struct tasklet_struct *); +static void unmap_desc(struct qib_pportdata *, unsigned); + +static void sdma_get(struct qib_sdma_state *ss) +{ + kref_get(&ss->kref); +} + +static void sdma_complete(struct kref *kref) +{ + struct qib_sdma_state *ss = + container_of(kref, struct qib_sdma_state, kref); + + complete(&ss->comp); +} + +static void sdma_put(struct qib_sdma_state *ss) +{ + kref_put(&ss->kref, sdma_complete); +} + +static void sdma_finalput(struct qib_sdma_state *ss) +{ + sdma_put(ss); + wait_for_completion(&ss->comp); +} + +/* + * Complete all the sdma requests on the active list, in the correct + * order, and with appropriate processing. Called when cleaning up + * after sdma shutdown, and when new sdma requests are submitted for + * a link that is down. This matches what is done for requests + * that complete normally, it's just the full list. + * + * Must be called with sdma_lock held + */ +static void clear_sdma_activelist(struct qib_pportdata *ppd) +{ + struct qib_sdma_txreq *txp, *txp_next; + + list_for_each_entry_safe(txp, txp_next, &ppd->sdma_activelist, list) { + list_del_init(&txp->list); + if (txp->flags & QIB_SDMA_TXREQ_F_FREEDESC) { + unsigned idx; + + idx = txp->start_idx; + while (idx != txp->next_descq_idx) { + unmap_desc(ppd, idx); + if (++idx == ppd->sdma_descq_cnt) + idx = 0; + } + } + if (txp->callback) + (*txp->callback)(txp, QIB_SDMA_TXREQ_S_ABORTED); + } +} + +static void sdma_sw_clean_up_task(struct tasklet_struct *t) +{ + struct qib_pportdata *ppd = from_tasklet(ppd, t, + sdma_sw_clean_up_task); + unsigned long flags; + + spin_lock_irqsave(&ppd->sdma_lock, flags); + + /* + * At this point, the following should always be true: + * - We are halted, so no more descriptors are getting retired. + * - We are not running, so no one is submitting new work. + * - Only we can send the e40_sw_cleaned, so we can't start + * running again until we say so. So, the active list and + * descq are ours to play with. + */ + + /* Process all retired requests. */ + qib_sdma_make_progress(ppd); + + clear_sdma_activelist(ppd); + + /* + * Resync count of added and removed. It is VERY important that + * sdma_descq_removed NEVER decrement - user_sdma depends on it. + */ + ppd->sdma_descq_removed = ppd->sdma_descq_added; + + /* + * Reset our notion of head and tail. + * Note that the HW registers will be reset when switching states + * due to calling __qib_sdma_process_event() below. + */ + ppd->sdma_descq_tail = 0; + ppd->sdma_descq_head = 0; + ppd->sdma_head_dma[0] = 0; + ppd->sdma_generation = 0; + + __qib_sdma_process_event(ppd, qib_sdma_event_e40_sw_cleaned); + + spin_unlock_irqrestore(&ppd->sdma_lock, flags); +} + +/* + * This is called when changing to state qib_sdma_state_s10_hw_start_up_wait + * as a result of send buffer errors or send DMA descriptor errors. + * We want to disarm the buffers in these cases. + */ +static void sdma_hw_start_up(struct qib_pportdata *ppd) +{ + struct qib_sdma_state *ss = &ppd->sdma_state; + unsigned bufno; + + for (bufno = ss->first_sendbuf; bufno < ss->last_sendbuf; ++bufno) + ppd->dd->f_sendctrl(ppd, QIB_SENDCTRL_DISARM_BUF(bufno)); + + ppd->dd->f_sdma_hw_start_up(ppd); +} + +static void sdma_sw_tear_down(struct qib_pportdata *ppd) +{ + struct qib_sdma_state *ss = &ppd->sdma_state; + + /* Releasing this reference means the state machine has stopped. */ + sdma_put(ss); +} + +static void sdma_start_sw_clean_up(struct qib_pportdata *ppd) +{ + tasklet_hi_schedule(&ppd->sdma_sw_clean_up_task); +} + +static void sdma_set_state(struct qib_pportdata *ppd, + enum qib_sdma_states next_state) +{ + struct qib_sdma_state *ss = &ppd->sdma_state; + struct sdma_set_state_action *action = ss->set_state_action; + unsigned op = 0; + + /* debugging bookkeeping */ + ss->previous_state = ss->current_state; + ss->previous_op = ss->current_op; + + ss->current_state = next_state; + + if (action[next_state].op_enable) + op |= QIB_SDMA_SENDCTRL_OP_ENABLE; + + if (action[next_state].op_intenable) + op |= QIB_SDMA_SENDCTRL_OP_INTENABLE; + + if (action[next_state].op_halt) + op |= QIB_SDMA_SENDCTRL_OP_HALT; + + if (action[next_state].op_drain) + op |= QIB_SDMA_SENDCTRL_OP_DRAIN; + + if (action[next_state].go_s99_running_tofalse) + ss->go_s99_running = 0; + + if (action[next_state].go_s99_running_totrue) + ss->go_s99_running = 1; + + ss->current_op = op; + + ppd->dd->f_sdma_sendctrl(ppd, ss->current_op); +} + +static void unmap_desc(struct qib_pportdata *ppd, unsigned head) +{ + __le64 *descqp = &ppd->sdma_descq[head].qw[0]; + u64 desc[2]; + dma_addr_t addr; + size_t len; + + desc[0] = le64_to_cpu(descqp[0]); + desc[1] = le64_to_cpu(descqp[1]); + + addr = (desc[1] << 32) | (desc[0] >> 32); + len = (desc[0] >> 14) & (0x7ffULL << 2); + dma_unmap_single(&ppd->dd->pcidev->dev, addr, len, DMA_TO_DEVICE); +} + +static int alloc_sdma(struct qib_pportdata *ppd) +{ + ppd->sdma_descq_cnt = sdma_descq_cnt; + if (!ppd->sdma_descq_cnt) + ppd->sdma_descq_cnt = 256; + + /* Allocate memory for SendDMA descriptor FIFO */ + ppd->sdma_descq = dma_alloc_coherent(&ppd->dd->pcidev->dev, + ppd->sdma_descq_cnt * sizeof(u64[2]), &ppd->sdma_descq_phys, + GFP_KERNEL); + + if (!ppd->sdma_descq) { + qib_dev_err(ppd->dd, + "failed to allocate SendDMA descriptor FIFO memory\n"); + goto bail; + } + + /* Allocate memory for DMA of head register to memory */ + ppd->sdma_head_dma = dma_alloc_coherent(&ppd->dd->pcidev->dev, + PAGE_SIZE, &ppd->sdma_head_phys, GFP_KERNEL); + if (!ppd->sdma_head_dma) { + qib_dev_err(ppd->dd, + "failed to allocate SendDMA head memory\n"); + goto cleanup_descq; + } + ppd->sdma_head_dma[0] = 0; + return 0; + +cleanup_descq: + dma_free_coherent(&ppd->dd->pcidev->dev, + ppd->sdma_descq_cnt * sizeof(u64[2]), (void *)ppd->sdma_descq, + ppd->sdma_descq_phys); + ppd->sdma_descq = NULL; + ppd->sdma_descq_phys = 0; +bail: + ppd->sdma_descq_cnt = 0; + return -ENOMEM; +} + +static void free_sdma(struct qib_pportdata *ppd) +{ + struct qib_devdata *dd = ppd->dd; + + if (ppd->sdma_head_dma) { + dma_free_coherent(&dd->pcidev->dev, PAGE_SIZE, + (void *)ppd->sdma_head_dma, + ppd->sdma_head_phys); + ppd->sdma_head_dma = NULL; + ppd->sdma_head_phys = 0; + } + + if (ppd->sdma_descq) { + dma_free_coherent(&dd->pcidev->dev, + ppd->sdma_descq_cnt * sizeof(u64[2]), + ppd->sdma_descq, ppd->sdma_descq_phys); + ppd->sdma_descq = NULL; + ppd->sdma_descq_phys = 0; + } +} + +static inline void make_sdma_desc(struct qib_pportdata *ppd, + u64 *sdmadesc, u64 addr, u64 dwlen, + u64 dwoffset) +{ + + WARN_ON(addr & 3); + /* SDmaPhyAddr[47:32] */ + sdmadesc[1] = addr >> 32; + /* SDmaPhyAddr[31:0] */ + sdmadesc[0] = (addr & 0xfffffffcULL) << 32; + /* SDmaGeneration[1:0] */ + sdmadesc[0] |= (ppd->sdma_generation & 3ULL) << + SDMA_DESC_GEN_LSB; + /* SDmaDwordCount[10:0] */ + sdmadesc[0] |= (dwlen & 0x7ffULL) << SDMA_DESC_COUNT_LSB; + /* SDmaBufOffset[12:2] */ + sdmadesc[0] |= dwoffset & 0x7ffULL; +} + +/* sdma_lock must be held */ +int qib_sdma_make_progress(struct qib_pportdata *ppd) +{ + struct list_head *lp = NULL; + struct qib_sdma_txreq *txp = NULL; + struct qib_devdata *dd = ppd->dd; + int progress = 0; + u16 hwhead; + u16 idx = 0; + + hwhead = dd->f_sdma_gethead(ppd); + + /* The reason for some of the complexity of this code is that + * not all descriptors have corresponding txps. So, we have to + * be able to skip over descs until we wander into the range of + * the next txp on the list. + */ + + if (!list_empty(&ppd->sdma_activelist)) { + lp = ppd->sdma_activelist.next; + txp = list_entry(lp, struct qib_sdma_txreq, list); + idx = txp->start_idx; + } + + while (ppd->sdma_descq_head != hwhead) { + /* if desc is part of this txp, unmap if needed */ + if (txp && (txp->flags & QIB_SDMA_TXREQ_F_FREEDESC) && + (idx == ppd->sdma_descq_head)) { + unmap_desc(ppd, ppd->sdma_descq_head); + if (++idx == ppd->sdma_descq_cnt) + idx = 0; + } + + /* increment dequed desc count */ + ppd->sdma_descq_removed++; + + /* advance head, wrap if needed */ + if (++ppd->sdma_descq_head == ppd->sdma_descq_cnt) + ppd->sdma_descq_head = 0; + + /* if now past this txp's descs, do the callback */ + if (txp && txp->next_descq_idx == ppd->sdma_descq_head) { + /* remove from active list */ + list_del_init(&txp->list); + if (txp->callback) + (*txp->callback)(txp, QIB_SDMA_TXREQ_S_OK); + /* see if there is another txp */ + if (list_empty(&ppd->sdma_activelist)) + txp = NULL; + else { + lp = ppd->sdma_activelist.next; + txp = list_entry(lp, struct qib_sdma_txreq, + list); + idx = txp->start_idx; + } + } + progress = 1; + } + if (progress) + qib_verbs_sdma_desc_avail(ppd, qib_sdma_descq_freecnt(ppd)); + return progress; +} + +/* + * This is called from interrupt context. + */ +void qib_sdma_intr(struct qib_pportdata *ppd) +{ + unsigned long flags; + + spin_lock_irqsave(&ppd->sdma_lock, flags); + + __qib_sdma_intr(ppd); + + spin_unlock_irqrestore(&ppd->sdma_lock, flags); +} + +void __qib_sdma_intr(struct qib_pportdata *ppd) +{ + if (__qib_sdma_running(ppd)) { + qib_sdma_make_progress(ppd); + if (!list_empty(&ppd->sdma_userpending)) + qib_user_sdma_send_desc(ppd, &ppd->sdma_userpending); + } +} + +int qib_setup_sdma(struct qib_pportdata *ppd) +{ + struct qib_devdata *dd = ppd->dd; + unsigned long flags; + int ret = 0; + + ret = alloc_sdma(ppd); + if (ret) + goto bail; + + /* set consistent sdma state */ + ppd->dd->f_sdma_init_early(ppd); + spin_lock_irqsave(&ppd->sdma_lock, flags); + sdma_set_state(ppd, qib_sdma_state_s00_hw_down); + spin_unlock_irqrestore(&ppd->sdma_lock, flags); + + /* set up reference counting */ + kref_init(&ppd->sdma_state.kref); + init_completion(&ppd->sdma_state.comp); + + ppd->sdma_generation = 0; + ppd->sdma_descq_head = 0; + ppd->sdma_descq_removed = 0; + ppd->sdma_descq_added = 0; + + ppd->sdma_intrequest = 0; + INIT_LIST_HEAD(&ppd->sdma_userpending); + + INIT_LIST_HEAD(&ppd->sdma_activelist); + + tasklet_setup(&ppd->sdma_sw_clean_up_task, sdma_sw_clean_up_task); + + ret = dd->f_init_sdma_regs(ppd); + if (ret) + goto bail_alloc; + + qib_sdma_process_event(ppd, qib_sdma_event_e10_go_hw_start); + + return 0; + +bail_alloc: + qib_teardown_sdma(ppd); +bail: + return ret; +} + +void qib_teardown_sdma(struct qib_pportdata *ppd) +{ + qib_sdma_process_event(ppd, qib_sdma_event_e00_go_hw_down); + + /* + * This waits for the state machine to exit so it is not + * necessary to kill the sdma_sw_clean_up_task to make sure + * it is not running. + */ + sdma_finalput(&ppd->sdma_state); + + free_sdma(ppd); +} + +int qib_sdma_running(struct qib_pportdata *ppd) +{ + unsigned long flags; + int ret; + + spin_lock_irqsave(&ppd->sdma_lock, flags); + ret = __qib_sdma_running(ppd); + spin_unlock_irqrestore(&ppd->sdma_lock, flags); + + return ret; +} + +/* + * Complete a request when sdma not running; likely only request + * but to simplify the code, always queue it, then process the full + * activelist. We process the entire list to ensure that this particular + * request does get it's callback, but in the correct order. + * Must be called with sdma_lock held + */ +static void complete_sdma_err_req(struct qib_pportdata *ppd, + struct qib_verbs_txreq *tx) +{ + struct qib_qp_priv *priv = tx->qp->priv; + + atomic_inc(&priv->s_dma_busy); + /* no sdma descriptors, so no unmap_desc */ + tx->txreq.start_idx = 0; + tx->txreq.next_descq_idx = 0; + list_add_tail(&tx->txreq.list, &ppd->sdma_activelist); + clear_sdma_activelist(ppd); +} + +/* + * This function queues one IB packet onto the send DMA queue per call. + * The caller is responsible for checking: + * 1) The number of send DMA descriptor entries is less than the size of + * the descriptor queue. + * 2) The IB SGE addresses and lengths are 32-bit aligned + * (except possibly the last SGE's length) + * 3) The SGE addresses are suitable for passing to dma_map_single(). + */ +int qib_sdma_verbs_send(struct qib_pportdata *ppd, + struct rvt_sge_state *ss, u32 dwords, + struct qib_verbs_txreq *tx) +{ + unsigned long flags; + struct rvt_sge *sge; + struct rvt_qp *qp; + int ret = 0; + u16 tail; + __le64 *descqp; + u64 sdmadesc[2]; + u32 dwoffset; + dma_addr_t addr; + struct qib_qp_priv *priv; + + spin_lock_irqsave(&ppd->sdma_lock, flags); + +retry: + if (unlikely(!__qib_sdma_running(ppd))) { + complete_sdma_err_req(ppd, tx); + goto unlock; + } + + if (tx->txreq.sg_count > qib_sdma_descq_freecnt(ppd)) { + if (qib_sdma_make_progress(ppd)) + goto retry; + if (ppd->dd->flags & QIB_HAS_SDMA_TIMEOUT) + ppd->dd->f_sdma_set_desc_cnt(ppd, + ppd->sdma_descq_cnt / 2); + goto busy; + } + + dwoffset = tx->hdr_dwords; + make_sdma_desc(ppd, sdmadesc, (u64) tx->txreq.addr, dwoffset, 0); + + sdmadesc[0] |= SDMA_DESC_FIRST; + if (tx->txreq.flags & QIB_SDMA_TXREQ_F_USELARGEBUF) + sdmadesc[0] |= SDMA_DESC_USE_LARGE_BUF; + + /* write to the descq */ + tail = ppd->sdma_descq_tail; + descqp = &ppd->sdma_descq[tail].qw[0]; + *descqp++ = cpu_to_le64(sdmadesc[0]); + *descqp++ = cpu_to_le64(sdmadesc[1]); + + /* increment the tail */ + if (++tail == ppd->sdma_descq_cnt) { + tail = 0; + descqp = &ppd->sdma_descq[0].qw[0]; + ++ppd->sdma_generation; + } + + tx->txreq.start_idx = tail; + + sge = &ss->sge; + while (dwords) { + u32 dw; + u32 len = rvt_get_sge_length(sge, dwords << 2); + + dw = (len + 3) >> 2; + addr = dma_map_single(&ppd->dd->pcidev->dev, sge->vaddr, + dw << 2, DMA_TO_DEVICE); + if (dma_mapping_error(&ppd->dd->pcidev->dev, addr)) { + ret = -ENOMEM; + goto unmap; + } + sdmadesc[0] = 0; + make_sdma_desc(ppd, sdmadesc, (u64) addr, dw, dwoffset); + /* SDmaUseLargeBuf has to be set in every descriptor */ + if (tx->txreq.flags & QIB_SDMA_TXREQ_F_USELARGEBUF) + sdmadesc[0] |= SDMA_DESC_USE_LARGE_BUF; + /* write to the descq */ + *descqp++ = cpu_to_le64(sdmadesc[0]); + *descqp++ = cpu_to_le64(sdmadesc[1]); + + /* increment the tail */ + if (++tail == ppd->sdma_descq_cnt) { + tail = 0; + descqp = &ppd->sdma_descq[0].qw[0]; + ++ppd->sdma_generation; + } + rvt_update_sge(ss, len, false); + dwoffset += dw; + dwords -= dw; + } + + if (!tail) + descqp = &ppd->sdma_descq[ppd->sdma_descq_cnt].qw[0]; + descqp -= 2; + descqp[0] |= cpu_to_le64(SDMA_DESC_LAST); + if (tx->txreq.flags & QIB_SDMA_TXREQ_F_HEADTOHOST) + descqp[0] |= cpu_to_le64(SDMA_DESC_DMA_HEAD); + if (tx->txreq.flags & QIB_SDMA_TXREQ_F_INTREQ) + descqp[0] |= cpu_to_le64(SDMA_DESC_INTR); + priv = tx->qp->priv; + atomic_inc(&priv->s_dma_busy); + tx->txreq.next_descq_idx = tail; + ppd->dd->f_sdma_update_tail(ppd, tail); + ppd->sdma_descq_added += tx->txreq.sg_count; + list_add_tail(&tx->txreq.list, &ppd->sdma_activelist); + goto unlock; + +unmap: + for (;;) { + if (!tail) + tail = ppd->sdma_descq_cnt - 1; + else + tail--; + if (tail == ppd->sdma_descq_tail) + break; + unmap_desc(ppd, tail); + } + qp = tx->qp; + priv = qp->priv; + qib_put_txreq(tx); + spin_lock(&qp->r_lock); + spin_lock(&qp->s_lock); + if (qp->ibqp.qp_type == IB_QPT_RC) { + /* XXX what about error sending RDMA read responses? */ + if (ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK) + rvt_error_qp(qp, IB_WC_GENERAL_ERR); + } else if (qp->s_wqe) + rvt_send_complete(qp, qp->s_wqe, IB_WC_GENERAL_ERR); + spin_unlock(&qp->s_lock); + spin_unlock(&qp->r_lock); + /* return zero to process the next send work request */ + goto unlock; + +busy: + qp = tx->qp; + priv = qp->priv; + spin_lock(&qp->s_lock); + if (ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK) { + struct qib_ibdev *dev; + + /* + * If we couldn't queue the DMA request, save the info + * and try again later rather than destroying the + * buffer and undoing the side effects of the copy. + */ + tx->ss = ss; + tx->dwords = dwords; + priv->s_tx = tx; + dev = &ppd->dd->verbs_dev; + spin_lock(&dev->rdi.pending_lock); + if (list_empty(&priv->iowait)) { + struct qib_ibport *ibp; + + ibp = &ppd->ibport_data; + ibp->rvp.n_dmawait++; + qp->s_flags |= RVT_S_WAIT_DMA_DESC; + list_add_tail(&priv->iowait, &dev->dmawait); + } + spin_unlock(&dev->rdi.pending_lock); + qp->s_flags &= ~RVT_S_BUSY; + spin_unlock(&qp->s_lock); + ret = -EBUSY; + } else { + spin_unlock(&qp->s_lock); + qib_put_txreq(tx); + } +unlock: + spin_unlock_irqrestore(&ppd->sdma_lock, flags); + return ret; +} + +/* + * sdma_lock should be acquired before calling this routine + */ +void dump_sdma_state(struct qib_pportdata *ppd) +{ + struct qib_sdma_desc *descq; + struct qib_sdma_txreq *txp, *txpnext; + __le64 *descqp; + u64 desc[2]; + u64 addr; + u16 gen, dwlen, dwoffset; + u16 head, tail, cnt; + + head = ppd->sdma_descq_head; + tail = ppd->sdma_descq_tail; + cnt = qib_sdma_descq_freecnt(ppd); + descq = ppd->sdma_descq; + + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA ppd->sdma_descq_head: %u\n", head); + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA ppd->sdma_descq_tail: %u\n", tail); + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA sdma_descq_freecnt: %u\n", cnt); + + /* print info for each entry in the descriptor queue */ + while (head != tail) { + char flags[6] = { 'x', 'x', 'x', 'x', 'x', 0 }; + + descqp = &descq[head].qw[0]; + desc[0] = le64_to_cpu(descqp[0]); + desc[1] = le64_to_cpu(descqp[1]); + flags[0] = (desc[0] & 1<<15) ? 'I' : '-'; + flags[1] = (desc[0] & 1<<14) ? 'L' : 'S'; + flags[2] = (desc[0] & 1<<13) ? 'H' : '-'; + flags[3] = (desc[0] & 1<<12) ? 'F' : '-'; + flags[4] = (desc[0] & 1<<11) ? 'L' : '-'; + addr = (desc[1] << 32) | ((desc[0] >> 32) & 0xfffffffcULL); + gen = (desc[0] >> 30) & 3ULL; + dwlen = (desc[0] >> 14) & (0x7ffULL << 2); + dwoffset = (desc[0] & 0x7ffULL) << 2; + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA sdmadesc[%u]: flags:%s addr:0x%016llx gen:%u len:%u bytes offset:%u bytes\n", + head, flags, addr, gen, dwlen, dwoffset); + if (++head == ppd->sdma_descq_cnt) + head = 0; + } + + /* print dma descriptor indices from the TX requests */ + list_for_each_entry_safe(txp, txpnext, &ppd->sdma_activelist, + list) + qib_dev_porterr(ppd->dd, ppd->port, + "SDMA txp->start_idx: %u txp->next_descq_idx: %u\n", + txp->start_idx, txp->next_descq_idx); +} + +void qib_sdma_process_event(struct qib_pportdata *ppd, + enum qib_sdma_events event) +{ + unsigned long flags; + + spin_lock_irqsave(&ppd->sdma_lock, flags); + + __qib_sdma_process_event(ppd, event); + + if (ppd->sdma_state.current_state == qib_sdma_state_s99_running) + qib_verbs_sdma_desc_avail(ppd, qib_sdma_descq_freecnt(ppd)); + + spin_unlock_irqrestore(&ppd->sdma_lock, flags); +} + +void __qib_sdma_process_event(struct qib_pportdata *ppd, + enum qib_sdma_events event) +{ + struct qib_sdma_state *ss = &ppd->sdma_state; + + switch (ss->current_state) { + case qib_sdma_state_s00_hw_down: + switch (event) { + case qib_sdma_event_e00_go_hw_down: + break; + case qib_sdma_event_e30_go_running: + /* + * If down, but running requested (usually result + * of link up, then we need to start up. + * This can happen when hw down is requested while + * bringing the link up with traffic active on + * 7220, e.g. */ + ss->go_s99_running = 1; + fallthrough; /* and start dma engine */ + case qib_sdma_event_e10_go_hw_start: + /* This reference means the state machine is started */ + sdma_get(&ppd->sdma_state); + sdma_set_state(ppd, + qib_sdma_state_s10_hw_start_up_wait); + break; + case qib_sdma_event_e20_hw_started: + break; + case qib_sdma_event_e40_sw_cleaned: + sdma_sw_tear_down(ppd); + break; + case qib_sdma_event_e50_hw_cleaned: + break; + case qib_sdma_event_e60_hw_halted: + break; + case qib_sdma_event_e70_go_idle: + break; + case qib_sdma_event_e7220_err_halted: + break; + case qib_sdma_event_e7322_err_halted: + break; + case qib_sdma_event_e90_timer_tick: + break; + } + break; + + case qib_sdma_state_s10_hw_start_up_wait: + switch (event) { + case qib_sdma_event_e00_go_hw_down: + sdma_set_state(ppd, qib_sdma_state_s00_hw_down); + sdma_sw_tear_down(ppd); + break; + case qib_sdma_event_e10_go_hw_start: + break; + case qib_sdma_event_e20_hw_started: + sdma_set_state(ppd, ss->go_s99_running ? + qib_sdma_state_s99_running : + qib_sdma_state_s20_idle); + break; + case qib_sdma_event_e30_go_running: + ss->go_s99_running = 1; + break; + case qib_sdma_event_e40_sw_cleaned: + break; + case qib_sdma_event_e50_hw_cleaned: + break; + case qib_sdma_event_e60_hw_halted: + break; + case qib_sdma_event_e70_go_idle: + ss->go_s99_running = 0; + break; + case qib_sdma_event_e7220_err_halted: + break; + case qib_sdma_event_e7322_err_halted: + break; + case qib_sdma_event_e90_timer_tick: + break; + } + break; + + case qib_sdma_state_s20_idle: + switch (event) { + case qib_sdma_event_e00_go_hw_down: + sdma_set_state(ppd, qib_sdma_state_s00_hw_down); + sdma_sw_tear_down(ppd); + break; + case qib_sdma_event_e10_go_hw_start: + break; + case qib_sdma_event_e20_hw_started: + break; + case qib_sdma_event_e30_go_running: + sdma_set_state(ppd, qib_sdma_state_s99_running); + ss->go_s99_running = 1; + break; + case qib_sdma_event_e40_sw_cleaned: + break; + case qib_sdma_event_e50_hw_cleaned: + break; + case qib_sdma_event_e60_hw_halted: + break; + case qib_sdma_event_e70_go_idle: + break; + case qib_sdma_event_e7220_err_halted: + break; + case qib_sdma_event_e7322_err_halted: + break; + case qib_sdma_event_e90_timer_tick: + break; + } + break; + + case qib_sdma_state_s30_sw_clean_up_wait: + switch (event) { + case qib_sdma_event_e00_go_hw_down: + sdma_set_state(ppd, qib_sdma_state_s00_hw_down); + break; + case qib_sdma_event_e10_go_hw_start: + break; + case qib_sdma_event_e20_hw_started: + break; + case qib_sdma_event_e30_go_running: + ss->go_s99_running = 1; + break; + case qib_sdma_event_e40_sw_cleaned: + sdma_set_state(ppd, + qib_sdma_state_s10_hw_start_up_wait); + sdma_hw_start_up(ppd); + break; + case qib_sdma_event_e50_hw_cleaned: + break; + case qib_sdma_event_e60_hw_halted: + break; + case qib_sdma_event_e70_go_idle: + ss->go_s99_running = 0; + break; + case qib_sdma_event_e7220_err_halted: + break; + case qib_sdma_event_e7322_err_halted: + break; + case qib_sdma_event_e90_timer_tick: + break; + } + break; + + case qib_sdma_state_s40_hw_clean_up_wait: + switch (event) { + case qib_sdma_event_e00_go_hw_down: + sdma_set_state(ppd, qib_sdma_state_s00_hw_down); + sdma_start_sw_clean_up(ppd); + break; + case qib_sdma_event_e10_go_hw_start: + break; + case qib_sdma_event_e20_hw_started: + break; + case qib_sdma_event_e30_go_running: + ss->go_s99_running = 1; + break; + case qib_sdma_event_e40_sw_cleaned: + break; + case qib_sdma_event_e50_hw_cleaned: + sdma_set_state(ppd, + qib_sdma_state_s30_sw_clean_up_wait); + sdma_start_sw_clean_up(ppd); + break; + case qib_sdma_event_e60_hw_halted: + break; + case qib_sdma_event_e70_go_idle: + ss->go_s99_running = 0; + break; + case qib_sdma_event_e7220_err_halted: + break; + case qib_sdma_event_e7322_err_halted: + break; + case qib_sdma_event_e90_timer_tick: + break; + } + break; + + case qib_sdma_state_s50_hw_halt_wait: + switch (event) { + case qib_sdma_event_e00_go_hw_down: + sdma_set_state(ppd, qib_sdma_state_s00_hw_down); + sdma_start_sw_clean_up(ppd); + break; + case qib_sdma_event_e10_go_hw_start: + break; + case qib_sdma_event_e20_hw_started: + break; + case qib_sdma_event_e30_go_running: + ss->go_s99_running = 1; + break; + case qib_sdma_event_e40_sw_cleaned: + break; + case qib_sdma_event_e50_hw_cleaned: + break; + case qib_sdma_event_e60_hw_halted: + sdma_set_state(ppd, + qib_sdma_state_s40_hw_clean_up_wait); + ppd->dd->f_sdma_hw_clean_up(ppd); + break; + case qib_sdma_event_e70_go_idle: + ss->go_s99_running = 0; + break; + case qib_sdma_event_e7220_err_halted: + break; + case qib_sdma_event_e7322_err_halted: + break; + case qib_sdma_event_e90_timer_tick: + break; + } + break; + + case qib_sdma_state_s99_running: + switch (event) { + case qib_sdma_event_e00_go_hw_down: + sdma_set_state(ppd, qib_sdma_state_s00_hw_down); + sdma_start_sw_clean_up(ppd); + break; + case qib_sdma_event_e10_go_hw_start: + break; + case qib_sdma_event_e20_hw_started: + break; + case qib_sdma_event_e30_go_running: + break; + case qib_sdma_event_e40_sw_cleaned: + break; + case qib_sdma_event_e50_hw_cleaned: + break; + case qib_sdma_event_e60_hw_halted: + sdma_set_state(ppd, + qib_sdma_state_s30_sw_clean_up_wait); + sdma_start_sw_clean_up(ppd); + break; + case qib_sdma_event_e70_go_idle: + sdma_set_state(ppd, qib_sdma_state_s50_hw_halt_wait); + ss->go_s99_running = 0; + break; + case qib_sdma_event_e7220_err_halted: + sdma_set_state(ppd, + qib_sdma_state_s30_sw_clean_up_wait); + sdma_start_sw_clean_up(ppd); + break; + case qib_sdma_event_e7322_err_halted: + sdma_set_state(ppd, qib_sdma_state_s50_hw_halt_wait); + break; + case qib_sdma_event_e90_timer_tick: + break; + } + break; + } + + ss->last_event = event; +} diff --git a/drivers/infiniband/hw/qib/qib_sysfs.c b/drivers/infiniband/hw/qib/qib_sysfs.c new file mode 100644 index 000000000..41c272980 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_sysfs.c @@ -0,0 +1,737 @@ +/* + * Copyright (c) 2012 Intel Corporation. All rights reserved. + * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. + * Copyright (c) 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include <linux/ctype.h> +#include <rdma/ib_sysfs.h> + +#include "qib.h" +#include "qib_mad.h" + +static struct qib_pportdata *qib_get_pportdata_kobj(struct kobject *kobj) +{ + u32 port_num; + struct ib_device *ibdev = ib_port_sysfs_get_ibdev_kobj(kobj, &port_num); + struct qib_devdata *dd = dd_from_ibdev(ibdev); + + return &dd->pport[port_num - 1]; +} + +/* + * Get/Set heartbeat enable. OR of 1=enabled, 2=auto + */ +static ssize_t hrtbt_enable_show(struct ib_device *ibdev, u32 port_num, + struct ib_port_attribute *attr, char *buf) +{ + struct qib_devdata *dd = dd_from_ibdev(ibdev); + struct qib_pportdata *ppd = &dd->pport[port_num - 1]; + + return sysfs_emit(buf, "%d\n", dd->f_get_ib_cfg(ppd, QIB_IB_CFG_HRTBT)); +} + +static ssize_t hrtbt_enable_store(struct ib_device *ibdev, u32 port_num, + struct ib_port_attribute *attr, + const char *buf, size_t count) +{ + struct qib_devdata *dd = dd_from_ibdev(ibdev); + struct qib_pportdata *ppd = &dd->pport[port_num - 1]; + int ret; + u16 val; + + ret = kstrtou16(buf, 0, &val); + if (ret) { + qib_dev_err(dd, "attempt to set invalid Heartbeat enable\n"); + return ret; + } + + /* + * Set the "intentional" heartbeat enable per either of + * "Enable" and "Auto", as these are normally set together. + * This bit is consulted when leaving loopback mode, + * because entering loopback mode overrides it and automatically + * disables heartbeat. + */ + ret = dd->f_set_ib_cfg(ppd, QIB_IB_CFG_HRTBT, val); + return ret < 0 ? ret : count; +} +static IB_PORT_ATTR_RW(hrtbt_enable); + +static ssize_t loopback_store(struct ib_device *ibdev, u32 port_num, + struct ib_port_attribute *attr, const char *buf, + size_t count) +{ + struct qib_devdata *dd = dd_from_ibdev(ibdev); + struct qib_pportdata *ppd = &dd->pport[port_num - 1]; + int ret = count, r; + + r = dd->f_set_ib_loopback(ppd, buf); + if (r < 0) + ret = r; + + return ret; +} +static IB_PORT_ATTR_WO(loopback); + +static ssize_t led_override_store(struct ib_device *ibdev, u32 port_num, + struct ib_port_attribute *attr, + const char *buf, size_t count) +{ + struct qib_devdata *dd = dd_from_ibdev(ibdev); + struct qib_pportdata *ppd = &dd->pport[port_num - 1]; + int ret; + u16 val; + + ret = kstrtou16(buf, 0, &val); + if (ret) { + qib_dev_err(dd, "attempt to set invalid LED override\n"); + return ret; + } + + qib_set_led_override(ppd, val); + return count; +} +static IB_PORT_ATTR_WO(led_override); + +static ssize_t status_show(struct ib_device *ibdev, u32 port_num, + struct ib_port_attribute *attr, char *buf) +{ + struct qib_devdata *dd = dd_from_ibdev(ibdev); + struct qib_pportdata *ppd = &dd->pport[port_num - 1]; + + if (!ppd->statusp) + return -EINVAL; + + return sysfs_emit(buf, "0x%llx\n", (unsigned long long)*(ppd->statusp)); +} +static IB_PORT_ATTR_RO(status); + +/* + * For userland compatibility, these offsets must remain fixed. + * They are strings for QIB_STATUS_* + */ +static const char * const qib_status_str[] = { + "Initted", + "", + "", + "", + "", + "Present", + "IB_link_up", + "IB_configured", + "", + "Fatal_Hardware_Error", + NULL, +}; + +static ssize_t status_str_show(struct ib_device *ibdev, u32 port_num, + struct ib_port_attribute *attr, char *buf) +{ + struct qib_devdata *dd = dd_from_ibdev(ibdev); + struct qib_pportdata *ppd = &dd->pport[port_num - 1]; + int i, any; + u64 s; + ssize_t ret; + + if (!ppd->statusp) { + ret = -EINVAL; + goto bail; + } + + s = *(ppd->statusp); + *buf = '\0'; + for (any = i = 0; s && qib_status_str[i]; i++) { + if (s & 1) { + /* if overflow */ + if (any && strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) + break; + if (strlcat(buf, qib_status_str[i], PAGE_SIZE) >= + PAGE_SIZE) + break; + any = 1; + } + s >>= 1; + } + if (any) + strlcat(buf, "\n", PAGE_SIZE); + + ret = strlen(buf); + +bail: + return ret; +} +static IB_PORT_ATTR_RO(status_str); + +/* end of per-port functions */ + +static struct attribute *port_linkcontrol_attributes[] = { + &ib_port_attr_loopback.attr, + &ib_port_attr_led_override.attr, + &ib_port_attr_hrtbt_enable.attr, + &ib_port_attr_status.attr, + &ib_port_attr_status_str.attr, + NULL +}; + +static const struct attribute_group port_linkcontrol_group = { + .name = "linkcontrol", + .attrs = port_linkcontrol_attributes, +}; + +/* + * Start of per-port congestion control structures and support code + */ + +/* + * Congestion control table size followed by table entries + */ +static ssize_t cc_table_bin_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, char *buf, + loff_t pos, size_t count) +{ + struct qib_pportdata *ppd = qib_get_pportdata_kobj(kobj); + int ret; + + if (!qib_cc_table_size || !ppd->ccti_entries_shadow) + return -EINVAL; + + ret = ppd->total_cct_entry * sizeof(struct ib_cc_table_entry_shadow) + + sizeof(__be16); + + if (pos > ret) + return -EINVAL; + + if (count > ret - pos) + count = ret - pos; + + if (!count) + return count; + + spin_lock(&ppd->cc_shadow_lock); + memcpy(buf, ppd->ccti_entries_shadow, count); + spin_unlock(&ppd->cc_shadow_lock); + + return count; +} +static BIN_ATTR_RO(cc_table_bin, PAGE_SIZE); + +/* + * Congestion settings: port control, control map and an array of 16 + * entries for the congestion entries - increase, timer, event log + * trigger threshold and the minimum injection rate delay. + */ +static ssize_t cc_setting_bin_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, char *buf, + loff_t pos, size_t count) +{ + struct qib_pportdata *ppd = qib_get_pportdata_kobj(kobj); + int ret; + + if (!qib_cc_table_size || !ppd->congestion_entries_shadow) + return -EINVAL; + + ret = sizeof(struct ib_cc_congestion_setting_attr_shadow); + + if (pos > ret) + return -EINVAL; + if (count > ret - pos) + count = ret - pos; + + if (!count) + return count; + + spin_lock(&ppd->cc_shadow_lock); + memcpy(buf, ppd->congestion_entries_shadow, count); + spin_unlock(&ppd->cc_shadow_lock); + + return count; +} +static BIN_ATTR_RO(cc_setting_bin, PAGE_SIZE); + +static struct bin_attribute *port_ccmgta_attributes[] = { + &bin_attr_cc_setting_bin, + &bin_attr_cc_table_bin, + NULL, +}; + +static umode_t qib_ccmgta_is_bin_visible(struct kobject *kobj, + struct bin_attribute *attr, int n) +{ + struct qib_pportdata *ppd = qib_get_pportdata_kobj(kobj); + + if (!qib_cc_table_size || !ppd->congestion_entries_shadow) + return 0; + return attr->attr.mode; +} + +static const struct attribute_group port_ccmgta_attribute_group = { + .name = "CCMgtA", + .is_bin_visible = qib_ccmgta_is_bin_visible, + .bin_attrs = port_ccmgta_attributes, +}; + +/* Start sl2vl */ + +struct qib_sl2vl_attr { + struct ib_port_attribute attr; + int sl; +}; + +static ssize_t sl2vl_attr_show(struct ib_device *ibdev, u32 port_num, + struct ib_port_attribute *attr, char *buf) +{ + struct qib_sl2vl_attr *sattr = + container_of(attr, struct qib_sl2vl_attr, attr); + struct qib_devdata *dd = dd_from_ibdev(ibdev); + struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; + + return sysfs_emit(buf, "%u\n", qibp->sl_to_vl[sattr->sl]); +} + +#define QIB_SL2VL_ATTR(N) \ + static struct qib_sl2vl_attr qib_sl2vl_attr_##N = { \ + .attr = __ATTR(N, 0444, sl2vl_attr_show, NULL), \ + .sl = N, \ + } + +QIB_SL2VL_ATTR(0); +QIB_SL2VL_ATTR(1); +QIB_SL2VL_ATTR(2); +QIB_SL2VL_ATTR(3); +QIB_SL2VL_ATTR(4); +QIB_SL2VL_ATTR(5); +QIB_SL2VL_ATTR(6); +QIB_SL2VL_ATTR(7); +QIB_SL2VL_ATTR(8); +QIB_SL2VL_ATTR(9); +QIB_SL2VL_ATTR(10); +QIB_SL2VL_ATTR(11); +QIB_SL2VL_ATTR(12); +QIB_SL2VL_ATTR(13); +QIB_SL2VL_ATTR(14); +QIB_SL2VL_ATTR(15); + +static struct attribute *port_sl2vl_attributes[] = { + &qib_sl2vl_attr_0.attr.attr, + &qib_sl2vl_attr_1.attr.attr, + &qib_sl2vl_attr_2.attr.attr, + &qib_sl2vl_attr_3.attr.attr, + &qib_sl2vl_attr_4.attr.attr, + &qib_sl2vl_attr_5.attr.attr, + &qib_sl2vl_attr_6.attr.attr, + &qib_sl2vl_attr_7.attr.attr, + &qib_sl2vl_attr_8.attr.attr, + &qib_sl2vl_attr_9.attr.attr, + &qib_sl2vl_attr_10.attr.attr, + &qib_sl2vl_attr_11.attr.attr, + &qib_sl2vl_attr_12.attr.attr, + &qib_sl2vl_attr_13.attr.attr, + &qib_sl2vl_attr_14.attr.attr, + &qib_sl2vl_attr_15.attr.attr, + NULL +}; + +static const struct attribute_group port_sl2vl_group = { + .name = "sl2vl", + .attrs = port_sl2vl_attributes, +}; + +/* End sl2vl */ + +/* Start diag_counters */ + +struct qib_diagc_attr { + struct ib_port_attribute attr; + size_t counter; +}; + +static ssize_t diagc_attr_show(struct ib_device *ibdev, u32 port_num, + struct ib_port_attribute *attr, char *buf) +{ + struct qib_diagc_attr *dattr = + container_of(attr, struct qib_diagc_attr, attr); + struct qib_devdata *dd = dd_from_ibdev(ibdev); + struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; + + return sysfs_emit(buf, "%llu\n", *((u64 *)qibp + dattr->counter)); +} + +static ssize_t diagc_attr_store(struct ib_device *ibdev, u32 port_num, + struct ib_port_attribute *attr, const char *buf, + size_t count) +{ + struct qib_diagc_attr *dattr = + container_of(attr, struct qib_diagc_attr, attr); + struct qib_devdata *dd = dd_from_ibdev(ibdev); + struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; + u64 val; + int ret; + + ret = kstrtou64(buf, 0, &val); + if (ret) + return ret; + *((u64 *)qibp + dattr->counter) = val; + return count; +} + +#define QIB_DIAGC_ATTR(N) \ + static_assert(__same_type(((struct qib_ibport *)0)->rvp.n_##N, u64)); \ + static struct qib_diagc_attr qib_diagc_attr_##N = { \ + .attr = __ATTR(N, 0664, diagc_attr_show, diagc_attr_store), \ + .counter = \ + offsetof(struct qib_ibport, rvp.n_##N) / sizeof(u64) \ + } + +QIB_DIAGC_ATTR(rc_resends); +QIB_DIAGC_ATTR(seq_naks); +QIB_DIAGC_ATTR(rdma_seq); +QIB_DIAGC_ATTR(rnr_naks); +QIB_DIAGC_ATTR(other_naks); +QIB_DIAGC_ATTR(rc_timeouts); +QIB_DIAGC_ATTR(loop_pkts); +QIB_DIAGC_ATTR(pkt_drops); +QIB_DIAGC_ATTR(dmawait); +QIB_DIAGC_ATTR(unaligned); +QIB_DIAGC_ATTR(rc_dupreq); +QIB_DIAGC_ATTR(rc_seqnak); +QIB_DIAGC_ATTR(rc_crwaits); + +static u64 get_all_cpu_total(u64 __percpu *cntr) +{ + int cpu; + u64 counter = 0; + + for_each_possible_cpu(cpu) + counter += *per_cpu_ptr(cntr, cpu); + return counter; +} + +static ssize_t qib_store_per_cpu(struct qib_devdata *dd, const char *buf, + size_t count, u64 *zero, u64 cur) +{ + u32 val; + int ret; + + ret = kstrtou32(buf, 0, &val); + if (ret) + return ret; + if (val != 0) { + qib_dev_err(dd, "Per CPU cntrs can only be zeroed"); + return count; + } + *zero = cur; + return count; +} + +static ssize_t rc_acks_show(struct ib_device *ibdev, u32 port_num, + struct ib_port_attribute *attr, char *buf) +{ + struct qib_devdata *dd = dd_from_ibdev(ibdev); + struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; + + return sysfs_emit(buf, "%llu\n", + get_all_cpu_total(qibp->rvp.rc_acks) - + qibp->rvp.z_rc_acks); +} + +static ssize_t rc_acks_store(struct ib_device *ibdev, u32 port_num, + struct ib_port_attribute *attr, const char *buf, + size_t count) +{ + struct qib_devdata *dd = dd_from_ibdev(ibdev); + struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; + + return qib_store_per_cpu(dd, buf, count, &qibp->rvp.z_rc_acks, + get_all_cpu_total(qibp->rvp.rc_acks)); +} +static IB_PORT_ATTR_RW(rc_acks); + +static ssize_t rc_qacks_show(struct ib_device *ibdev, u32 port_num, + struct ib_port_attribute *attr, char *buf) +{ + struct qib_devdata *dd = dd_from_ibdev(ibdev); + struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; + + return sysfs_emit(buf, "%llu\n", + get_all_cpu_total(qibp->rvp.rc_qacks) - + qibp->rvp.z_rc_qacks); +} + +static ssize_t rc_qacks_store(struct ib_device *ibdev, u32 port_num, + struct ib_port_attribute *attr, const char *buf, + size_t count) +{ + struct qib_devdata *dd = dd_from_ibdev(ibdev); + struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; + + return qib_store_per_cpu(dd, buf, count, &qibp->rvp.z_rc_qacks, + get_all_cpu_total(qibp->rvp.rc_qacks)); +} +static IB_PORT_ATTR_RW(rc_qacks); + +static ssize_t rc_delayed_comp_show(struct ib_device *ibdev, u32 port_num, + struct ib_port_attribute *attr, char *buf) +{ + struct qib_devdata *dd = dd_from_ibdev(ibdev); + struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; + + return sysfs_emit(buf, "%llu\n", + get_all_cpu_total(qibp->rvp.rc_delayed_comp) - + qibp->rvp.z_rc_delayed_comp); +} + +static ssize_t rc_delayed_comp_store(struct ib_device *ibdev, u32 port_num, + struct ib_port_attribute *attr, + const char *buf, size_t count) +{ + struct qib_devdata *dd = dd_from_ibdev(ibdev); + struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; + + return qib_store_per_cpu(dd, buf, count, &qibp->rvp.z_rc_delayed_comp, + get_all_cpu_total(qibp->rvp.rc_delayed_comp)); +} +static IB_PORT_ATTR_RW(rc_delayed_comp); + +static struct attribute *port_diagc_attributes[] = { + &qib_diagc_attr_rc_resends.attr.attr, + &qib_diagc_attr_seq_naks.attr.attr, + &qib_diagc_attr_rdma_seq.attr.attr, + &qib_diagc_attr_rnr_naks.attr.attr, + &qib_diagc_attr_other_naks.attr.attr, + &qib_diagc_attr_rc_timeouts.attr.attr, + &qib_diagc_attr_loop_pkts.attr.attr, + &qib_diagc_attr_pkt_drops.attr.attr, + &qib_diagc_attr_dmawait.attr.attr, + &qib_diagc_attr_unaligned.attr.attr, + &qib_diagc_attr_rc_dupreq.attr.attr, + &qib_diagc_attr_rc_seqnak.attr.attr, + &qib_diagc_attr_rc_crwaits.attr.attr, + &ib_port_attr_rc_acks.attr, + &ib_port_attr_rc_qacks.attr, + &ib_port_attr_rc_delayed_comp.attr, + NULL +}; + +static const struct attribute_group port_diagc_group = { + .name = "diag_counters", + .attrs = port_diagc_attributes, +}; + +/* End diag_counters */ + +const struct attribute_group *qib_attr_port_groups[] = { + &port_linkcontrol_group, + &port_ccmgta_attribute_group, + &port_sl2vl_group, + &port_diagc_group, + NULL, +}; + +/* end of per-port file structures and support code */ + +/* + * Start of per-unit (or driver, in some cases, but replicated + * per unit) functions (these get a device *) + */ +static ssize_t hw_rev_show(struct device *device, struct device_attribute *attr, + char *buf) +{ + struct qib_ibdev *dev = + rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); + + return sysfs_emit(buf, "%x\n", dd_from_dev(dev)->minrev); +} +static DEVICE_ATTR_RO(hw_rev); + +static ssize_t hca_type_show(struct device *device, + struct device_attribute *attr, char *buf) +{ + struct qib_ibdev *dev = + rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); + struct qib_devdata *dd = dd_from_dev(dev); + + if (!dd->boardname) + return -EINVAL; + return sysfs_emit(buf, "%s\n", dd->boardname); +} +static DEVICE_ATTR_RO(hca_type); +static DEVICE_ATTR(board_id, 0444, hca_type_show, NULL); + +static ssize_t version_show(struct device *device, + struct device_attribute *attr, char *buf) +{ + /* The string printed here is already newline-terminated. */ + return sysfs_emit(buf, "%s", (char *)ib_qib_version); +} +static DEVICE_ATTR_RO(version); + +static ssize_t boardversion_show(struct device *device, + struct device_attribute *attr, char *buf) +{ + struct qib_ibdev *dev = + rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); + struct qib_devdata *dd = dd_from_dev(dev); + + /* The string printed here is already newline-terminated. */ + return sysfs_emit(buf, "%s", dd->boardversion); +} +static DEVICE_ATTR_RO(boardversion); + +static ssize_t localbus_info_show(struct device *device, + struct device_attribute *attr, char *buf) +{ + struct qib_ibdev *dev = + rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); + struct qib_devdata *dd = dd_from_dev(dev); + + /* The string printed here is already newline-terminated. */ + return sysfs_emit(buf, "%s", dd->lbus_info); +} +static DEVICE_ATTR_RO(localbus_info); + +static ssize_t nctxts_show(struct device *device, + struct device_attribute *attr, char *buf) +{ + struct qib_ibdev *dev = + rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); + struct qib_devdata *dd = dd_from_dev(dev); + + /* Return the number of user ports (contexts) available. */ + /* The calculation below deals with a special case where + * cfgctxts is set to 1 on a single-port board. */ + return sysfs_emit(buf, "%u\n", + (dd->first_user_ctxt > dd->cfgctxts) ? + 0 : + (dd->cfgctxts - dd->first_user_ctxt)); +} +static DEVICE_ATTR_RO(nctxts); + +static ssize_t nfreectxts_show(struct device *device, + struct device_attribute *attr, char *buf) +{ + struct qib_ibdev *dev = + rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); + struct qib_devdata *dd = dd_from_dev(dev); + + /* Return the number of free user ports (contexts) available. */ + return sysfs_emit(buf, "%u\n", dd->freectxts); +} +static DEVICE_ATTR_RO(nfreectxts); + +static ssize_t serial_show(struct device *device, struct device_attribute *attr, + char *buf) +{ + struct qib_ibdev *dev = + rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); + struct qib_devdata *dd = dd_from_dev(dev); + const u8 *end = memchr(dd->serial, 0, ARRAY_SIZE(dd->serial)); + int size = end ? end - dd->serial : ARRAY_SIZE(dd->serial); + + return sysfs_emit(buf, ".%*s\n", size, dd->serial); +} +static DEVICE_ATTR_RO(serial); + +static ssize_t chip_reset_store(struct device *device, + struct device_attribute *attr, const char *buf, + size_t count) +{ + struct qib_ibdev *dev = + rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); + struct qib_devdata *dd = dd_from_dev(dev); + int ret; + + if (count < 5 || memcmp(buf, "reset", 5) || !dd->diag_client) { + ret = -EINVAL; + goto bail; + } + + ret = qib_reset_device(dd->unit); +bail: + return ret < 0 ? ret : count; +} +static DEVICE_ATTR_WO(chip_reset); + +/* + * Dump tempsense regs. in decimal, to ease shell-scripts. + */ +static ssize_t tempsense_show(struct device *device, + struct device_attribute *attr, char *buf) +{ + struct qib_ibdev *dev = + rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); + struct qib_devdata *dd = dd_from_dev(dev); + int i; + u8 regvals[8]; + + for (i = 0; i < 8; i++) { + int ret; + + if (i == 6) + continue; + ret = dd->f_tempsense_rd(dd, i); + if (ret < 0) + return ret; /* return error on bad read */ + regvals[i] = ret; + } + return sysfs_emit(buf, "%d %d %02X %02X %d %d\n", + (signed char)regvals[0], + (signed char)regvals[1], + regvals[2], + regvals[3], + (signed char)regvals[5], + (signed char)regvals[7]); +} +static DEVICE_ATTR_RO(tempsense); + +/* + * end of per-unit (or driver, in some cases, but replicated + * per unit) functions + */ + +/* start of per-unit file structures and support code */ +static struct attribute *qib_attributes[] = { + &dev_attr_hw_rev.attr, + &dev_attr_hca_type.attr, + &dev_attr_board_id.attr, + &dev_attr_version.attr, + &dev_attr_nctxts.attr, + &dev_attr_nfreectxts.attr, + &dev_attr_serial.attr, + &dev_attr_boardversion.attr, + &dev_attr_tempsense.attr, + &dev_attr_localbus_info.attr, + &dev_attr_chip_reset.attr, + NULL, +}; + +const struct attribute_group qib_attr_group = { + .attrs = qib_attributes, +}; diff --git a/drivers/infiniband/hw/qib/qib_twsi.c b/drivers/infiniband/hw/qib/qib_twsi.c new file mode 100644 index 000000000..97b8a2bf5 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_twsi.c @@ -0,0 +1,502 @@ +/* + * Copyright (c) 2012 Intel Corporation. All rights reserved. + * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/delay.h> +#include <linux/pci.h> +#include <linux/vmalloc.h> + +#include "qib.h" + +/* + * QLogic_IB "Two Wire Serial Interface" driver. + * Originally written for a not-quite-i2c serial eeprom, which is + * still used on some supported boards. Later boards have added a + * variety of other uses, most board-specific, so the bit-boffing + * part has been split off to this file, while the other parts + * have been moved to chip-specific files. + * + * We have also dropped all pretense of fully generic (e.g. pretend + * we don't know whether '1' is the higher voltage) interface, as + * the restrictions of the generic i2c interface (e.g. no access from + * driver itself) make it unsuitable for this use. + */ + +#define READ_CMD 1 +#define WRITE_CMD 0 + +/** + * i2c_wait_for_writes - wait for a write + * @dd: the qlogic_ib device + * + * We use this instead of udelay directly, so we can make sure + * that previous register writes have been flushed all the way + * to the chip. Since we are delaying anyway, the cost doesn't + * hurt, and makes the bit twiddling more regular + */ +static void i2c_wait_for_writes(struct qib_devdata *dd) +{ + /* + * implicit read of EXTStatus is as good as explicit + * read of scratch, if all we want to do is flush + * writes. + */ + dd->f_gpio_mod(dd, 0, 0, 0); + rmb(); /* inlined, so prevent compiler reordering */ +} + +/* + * QSFP modules are allowed to hold SCL low for 500uSec. Allow twice that + * for "almost compliant" modules + */ +#define SCL_WAIT_USEC 1000 + +/* BUF_WAIT is time bus must be free between STOP or ACK and to next START. + * Should be 20, but some chips need more. + */ +#define TWSI_BUF_WAIT_USEC 60 + +static void scl_out(struct qib_devdata *dd, u8 bit) +{ + u32 mask; + + udelay(1); + + mask = 1UL << dd->gpio_scl_num; + + /* SCL is meant to be bare-drain, so never set "OUT", just DIR */ + dd->f_gpio_mod(dd, 0, bit ? 0 : mask, mask); + + /* + * Allow for slow slaves by simple + * delay for falling edge, sampling on rise. + */ + if (!bit) + udelay(2); + else { + int rise_usec; + + for (rise_usec = SCL_WAIT_USEC; rise_usec > 0; rise_usec -= 2) { + if (mask & dd->f_gpio_mod(dd, 0, 0, 0)) + break; + udelay(2); + } + if (rise_usec <= 0) + qib_dev_err(dd, "SCL interface stuck low > %d uSec\n", + SCL_WAIT_USEC); + } + i2c_wait_for_writes(dd); +} + +static void sda_out(struct qib_devdata *dd, u8 bit) +{ + u32 mask; + + mask = 1UL << dd->gpio_sda_num; + + /* SDA is meant to be bare-drain, so never set "OUT", just DIR */ + dd->f_gpio_mod(dd, 0, bit ? 0 : mask, mask); + + i2c_wait_for_writes(dd); + udelay(2); +} + +static u8 sda_in(struct qib_devdata *dd, int wait) +{ + int bnum; + u32 read_val, mask; + + bnum = dd->gpio_sda_num; + mask = (1UL << bnum); + /* SDA is meant to be bare-drain, so never set "OUT", just DIR */ + dd->f_gpio_mod(dd, 0, 0, mask); + read_val = dd->f_gpio_mod(dd, 0, 0, 0); + if (wait) + i2c_wait_for_writes(dd); + return (read_val & mask) >> bnum; +} + +/** + * i2c_ackrcv - see if ack following write is true + * @dd: the qlogic_ib device + */ +static int i2c_ackrcv(struct qib_devdata *dd) +{ + u8 ack_received; + + /* AT ENTRY SCL = LOW */ + /* change direction, ignore data */ + ack_received = sda_in(dd, 1); + scl_out(dd, 1); + ack_received = sda_in(dd, 1) == 0; + scl_out(dd, 0); + return ack_received; +} + +static void stop_cmd(struct qib_devdata *dd); + +/** + * rd_byte - read a byte, sending STOP on last, else ACK + * @dd: the qlogic_ib device + * @last: identifies the last read + * + * Returns byte shifted out of device + */ +static int rd_byte(struct qib_devdata *dd, int last) +{ + int bit_cntr, data; + + data = 0; + + for (bit_cntr = 7; bit_cntr >= 0; --bit_cntr) { + data <<= 1; + scl_out(dd, 1); + data |= sda_in(dd, 0); + scl_out(dd, 0); + } + if (last) { + scl_out(dd, 1); + stop_cmd(dd); + } else { + sda_out(dd, 0); + scl_out(dd, 1); + scl_out(dd, 0); + sda_out(dd, 1); + } + return data; +} + +/** + * wr_byte - write a byte, one bit at a time + * @dd: the qlogic_ib device + * @data: the byte to write + * + * Returns 0 if we got the following ack, otherwise 1 + */ +static int wr_byte(struct qib_devdata *dd, u8 data) +{ + int bit_cntr; + u8 bit; + + for (bit_cntr = 7; bit_cntr >= 0; bit_cntr--) { + bit = (data >> bit_cntr) & 1; + sda_out(dd, bit); + scl_out(dd, 1); + scl_out(dd, 0); + } + return (!i2c_ackrcv(dd)) ? 1 : 0; +} + +/* + * issue TWSI start sequence: + * (both clock/data high, clock high, data low while clock is high) + */ +static void start_seq(struct qib_devdata *dd) +{ + sda_out(dd, 1); + scl_out(dd, 1); + sda_out(dd, 0); + udelay(1); + scl_out(dd, 0); +} + +/** + * stop_seq - transmit the stop sequence + * @dd: the qlogic_ib device + * + * (both clock/data low, clock high, data high while clock is high) + */ +static void stop_seq(struct qib_devdata *dd) +{ + scl_out(dd, 0); + sda_out(dd, 0); + scl_out(dd, 1); + sda_out(dd, 1); +} + +/** + * stop_cmd - transmit the stop condition + * @dd: the qlogic_ib device + * + * (both clock/data low, clock high, data high while clock is high) + */ +static void stop_cmd(struct qib_devdata *dd) +{ + stop_seq(dd); + udelay(TWSI_BUF_WAIT_USEC); +} + +/** + * qib_twsi_reset - reset I2C communication + * @dd: the qlogic_ib device + */ + +int qib_twsi_reset(struct qib_devdata *dd) +{ + int clock_cycles_left = 9; + int was_high = 0; + u32 pins, mask; + + /* Both SCL and SDA should be high. If not, there + * is something wrong. + */ + mask = (1UL << dd->gpio_scl_num) | (1UL << dd->gpio_sda_num); + + /* + * Force pins to desired innocuous state. + * This is the default power-on state with out=0 and dir=0, + * So tri-stated and should be floating high (barring HW problems) + */ + dd->f_gpio_mod(dd, 0, 0, mask); + + /* + * Clock nine times to get all listeners into a sane state. + * If SDA does not go high at any point, we are wedged. + * One vendor recommends then issuing START followed by STOP. + * we cannot use our "normal" functions to do that, because + * if SCL drops between them, another vendor's part will + * wedge, dropping SDA and keeping it low forever, at the end of + * the next transaction (even if it was not the device addressed). + * So our START and STOP take place with SCL held high. + */ + while (clock_cycles_left--) { + scl_out(dd, 0); + scl_out(dd, 1); + /* Note if SDA is high, but keep clocking to sync slave */ + was_high |= sda_in(dd, 0); + } + + if (was_high) { + /* + * We saw a high, which we hope means the slave is sync'd. + * Issue START, STOP, pause for T_BUF. + */ + + pins = dd->f_gpio_mod(dd, 0, 0, 0); + if ((pins & mask) != mask) + qib_dev_err(dd, "GPIO pins not at rest: %d\n", + pins & mask); + /* Drop SDA to issue START */ + udelay(1); /* Guarantee .6 uSec setup */ + sda_out(dd, 0); + udelay(1); /* Guarantee .6 uSec hold */ + /* At this point, SCL is high, SDA low. Raise SDA for STOP */ + sda_out(dd, 1); + udelay(TWSI_BUF_WAIT_USEC); + } + + return !was_high; +} + +#define QIB_TWSI_START 0x100 +#define QIB_TWSI_STOP 0x200 + +/* Write byte to TWSI, optionally prefixed with START or suffixed with + * STOP. + * returns 0 if OK (ACK received), else != 0 + */ +static int qib_twsi_wr(struct qib_devdata *dd, int data, int flags) +{ + int ret = 1; + + if (flags & QIB_TWSI_START) + start_seq(dd); + + ret = wr_byte(dd, data); /* Leaves SCL low (from i2c_ackrcv()) */ + + if (flags & QIB_TWSI_STOP) + stop_cmd(dd); + return ret; +} + +/* Added functionality for IBA7220-based cards */ +#define QIB_TEMP_DEV 0x98 + +/* + * qib_twsi_blk_rd + * Formerly called qib_eeprom_internal_read, and only used for eeprom, + * but now the general interface for data transfer from twsi devices. + * One vestige of its former role is that it recognizes a device + * QIB_TWSI_NO_DEV and does the correct operation for the legacy part, + * which responded to all TWSI device codes, interpreting them as + * address within device. On all other devices found on board handled by + * this driver, the device is followed by a one-byte "address" which selects + * the "register" or "offset" within the device from which data should + * be read. + */ +int qib_twsi_blk_rd(struct qib_devdata *dd, int dev, int addr, + void *buffer, int len) +{ + int ret; + u8 *bp = buffer; + + ret = 1; + + if (dev == QIB_TWSI_NO_DEV) { + /* legacy not-really-I2C */ + addr = (addr << 1) | READ_CMD; + ret = qib_twsi_wr(dd, addr, QIB_TWSI_START); + } else { + /* Actual I2C */ + ret = qib_twsi_wr(dd, dev | WRITE_CMD, QIB_TWSI_START); + if (ret) { + stop_cmd(dd); + ret = 1; + goto bail; + } + /* + * SFF spec claims we do _not_ stop after the addr + * but simply issue a start with the "read" dev-addr. + * Since we are implicitely waiting for ACK here, + * we need t_buf (nominally 20uSec) before that start, + * and cannot rely on the delay built in to the STOP + */ + ret = qib_twsi_wr(dd, addr, 0); + udelay(TWSI_BUF_WAIT_USEC); + + if (ret) { + qib_dev_err(dd, + "Failed to write interface read addr %02X\n", + addr); + ret = 1; + goto bail; + } + ret = qib_twsi_wr(dd, dev | READ_CMD, QIB_TWSI_START); + } + if (ret) { + stop_cmd(dd); + ret = 1; + goto bail; + } + + /* + * block devices keeps clocking data out as long as we ack, + * automatically incrementing the address. Some have "pages" + * whose boundaries will not be crossed, but the handling + * of these is left to the caller, who is in a better + * position to know. + */ + while (len-- > 0) { + /* + * Get and store data, sending ACK if length remaining, + * else STOP + */ + *bp++ = rd_byte(dd, !len); + } + + ret = 0; + +bail: + return ret; +} + +/* + * qib_twsi_blk_wr + * Formerly called qib_eeprom_internal_write, and only used for eeprom, + * but now the general interface for data transfer to twsi devices. + * One vestige of its former role is that it recognizes a device + * QIB_TWSI_NO_DEV and does the correct operation for the legacy part, + * which responded to all TWSI device codes, interpreting them as + * address within device. On all other devices found on board handled by + * this driver, the device is followed by a one-byte "address" which selects + * the "register" or "offset" within the device to which data should + * be written. + */ +int qib_twsi_blk_wr(struct qib_devdata *dd, int dev, int addr, + const void *buffer, int len) +{ + int sub_len; + const u8 *bp = buffer; + int max_wait_time, i; + int ret = 1; + + while (len > 0) { + if (dev == QIB_TWSI_NO_DEV) { + if (qib_twsi_wr(dd, (addr << 1) | WRITE_CMD, + QIB_TWSI_START)) { + goto failed_write; + } + } else { + /* Real I2C */ + if (qib_twsi_wr(dd, dev | WRITE_CMD, QIB_TWSI_START)) + goto failed_write; + ret = qib_twsi_wr(dd, addr, 0); + if (ret) { + qib_dev_err(dd, + "Failed to write interface write addr %02X\n", + addr); + goto failed_write; + } + } + + sub_len = min(len, 4); + addr += sub_len; + len -= sub_len; + + for (i = 0; i < sub_len; i++) + if (qib_twsi_wr(dd, *bp++, 0)) + goto failed_write; + + stop_cmd(dd); + + /* + * Wait for write complete by waiting for a successful + * read (the chip replies with a zero after the write + * cmd completes, and before it writes to the eeprom. + * The startcmd for the read will fail the ack until + * the writes have completed. We do this inline to avoid + * the debug prints that are in the real read routine + * if the startcmd fails. + * We also use the proper device address, so it doesn't matter + * whether we have real eeprom_dev. Legacy likes any address. + */ + max_wait_time = 100; + while (qib_twsi_wr(dd, dev | READ_CMD, QIB_TWSI_START)) { + stop_cmd(dd); + if (!--max_wait_time) + goto failed_write; + } + /* now read (and ignore) the resulting byte */ + rd_byte(dd, 1); + } + + ret = 0; + goto bail; + +failed_write: + stop_cmd(dd); + ret = 1; + +bail: + return ret; +} diff --git a/drivers/infiniband/hw/qib/qib_tx.c b/drivers/infiniband/hw/qib/qib_tx.c new file mode 100644 index 000000000..6a8148851 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_tx.c @@ -0,0 +1,569 @@ +/* + * Copyright (c) 2008, 2009, 2010 QLogic Corporation. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/spinlock.h> +#include <linux/pci.h> +#include <linux/io.h> +#include <linux/delay.h> +#include <linux/netdevice.h> +#include <linux/vmalloc.h> +#include <linux/moduleparam.h> + +#include "qib.h" + +static unsigned qib_hol_timeout_ms = 3000; +module_param_named(hol_timeout_ms, qib_hol_timeout_ms, uint, S_IRUGO); +MODULE_PARM_DESC(hol_timeout_ms, + "duration of user app suspension after link failure"); + +unsigned qib_sdma_fetch_arb = 1; +module_param_named(fetch_arb, qib_sdma_fetch_arb, uint, S_IRUGO); +MODULE_PARM_DESC(fetch_arb, "IBA7220: change SDMA descriptor arbitration"); + +/** + * qib_disarm_piobufs - cancel a range of PIO buffers + * @dd: the qlogic_ib device + * @first: the first PIO buffer to cancel + * @cnt: the number of PIO buffers to cancel + * + * Cancel a range of PIO buffers. Used at user process close, + * in case it died while writing to a PIO buffer. + */ +void qib_disarm_piobufs(struct qib_devdata *dd, unsigned first, unsigned cnt) +{ + unsigned long flags; + unsigned i; + unsigned last; + + last = first + cnt; + spin_lock_irqsave(&dd->pioavail_lock, flags); + for (i = first; i < last; i++) { + __clear_bit(i, dd->pio_need_disarm); + dd->f_sendctrl(dd->pport, QIB_SENDCTRL_DISARM_BUF(i)); + } + spin_unlock_irqrestore(&dd->pioavail_lock, flags); +} + +/* + * This is called by a user process when it sees the DISARM_BUFS event + * bit is set. + */ +int qib_disarm_piobufs_ifneeded(struct qib_ctxtdata *rcd) +{ + struct qib_devdata *dd = rcd->dd; + unsigned i; + unsigned last; + unsigned n = 0; + + last = rcd->pio_base + rcd->piocnt; + /* + * Don't need uctxt_lock here, since user has called in to us. + * Clear at start in case more interrupts set bits while we + * are disarming + */ + if (rcd->user_event_mask) { + /* + * subctxt_cnt is 0 if not shared, so do base + * separately, first, then remaining subctxt, if any + */ + clear_bit(_QIB_EVENT_DISARM_BUFS_BIT, &rcd->user_event_mask[0]); + for (i = 1; i < rcd->subctxt_cnt; i++) + clear_bit(_QIB_EVENT_DISARM_BUFS_BIT, + &rcd->user_event_mask[i]); + } + spin_lock_irq(&dd->pioavail_lock); + for (i = rcd->pio_base; i < last; i++) { + if (__test_and_clear_bit(i, dd->pio_need_disarm)) { + n++; + dd->f_sendctrl(rcd->ppd, QIB_SENDCTRL_DISARM_BUF(i)); + } + } + spin_unlock_irq(&dd->pioavail_lock); + return 0; +} + +static struct qib_pportdata *is_sdma_buf(struct qib_devdata *dd, unsigned i) +{ + struct qib_pportdata *ppd; + unsigned pidx; + + for (pidx = 0; pidx < dd->num_pports; pidx++) { + ppd = dd->pport + pidx; + if (i >= ppd->sdma_state.first_sendbuf && + i < ppd->sdma_state.last_sendbuf) + return ppd; + } + return NULL; +} + +/* + * Return true if send buffer is being used by a user context. + * Sets _QIB_EVENT_DISARM_BUFS_BIT in user_event_mask as a side effect + */ +static int find_ctxt(struct qib_devdata *dd, unsigned bufn) +{ + struct qib_ctxtdata *rcd; + unsigned ctxt; + int ret = 0; + + spin_lock(&dd->uctxt_lock); + for (ctxt = dd->first_user_ctxt; ctxt < dd->cfgctxts; ctxt++) { + rcd = dd->rcd[ctxt]; + if (!rcd || bufn < rcd->pio_base || + bufn >= rcd->pio_base + rcd->piocnt) + continue; + if (rcd->user_event_mask) { + int i; + /* + * subctxt_cnt is 0 if not shared, so do base + * separately, first, then remaining subctxt, if any + */ + set_bit(_QIB_EVENT_DISARM_BUFS_BIT, + &rcd->user_event_mask[0]); + for (i = 1; i < rcd->subctxt_cnt; i++) + set_bit(_QIB_EVENT_DISARM_BUFS_BIT, + &rcd->user_event_mask[i]); + } + ret = 1; + break; + } + spin_unlock(&dd->uctxt_lock); + + return ret; +} + +/* + * Disarm a set of send buffers. If the buffer might be actively being + * written to, mark the buffer to be disarmed later when it is not being + * written to. + * + * This should only be called from the IRQ error handler. + */ +void qib_disarm_piobufs_set(struct qib_devdata *dd, unsigned long *mask, + unsigned cnt) +{ + struct qib_pportdata *ppd, *pppd[QIB_MAX_IB_PORTS]; + unsigned i; + unsigned long flags; + + for (i = 0; i < dd->num_pports; i++) + pppd[i] = NULL; + + for (i = 0; i < cnt; i++) { + if (!test_bit(i, mask)) + continue; + /* + * If the buffer is owned by the DMA hardware, + * reset the DMA engine. + */ + ppd = is_sdma_buf(dd, i); + if (ppd) { + pppd[ppd->port] = ppd; + continue; + } + /* + * If the kernel is writing the buffer or the buffer is + * owned by a user process, we can't clear it yet. + */ + spin_lock_irqsave(&dd->pioavail_lock, flags); + if (test_bit(i, dd->pio_writing) || + (!test_bit(i << 1, dd->pioavailkernel) && + find_ctxt(dd, i))) { + __set_bit(i, dd->pio_need_disarm); + } else { + dd->f_sendctrl(dd->pport, QIB_SENDCTRL_DISARM_BUF(i)); + } + spin_unlock_irqrestore(&dd->pioavail_lock, flags); + } + + /* do cancel_sends once per port that had sdma piobufs in error */ + for (i = 0; i < dd->num_pports; i++) + if (pppd[i]) + qib_cancel_sends(pppd[i]); +} + +/** + * update_send_bufs - update shadow copy of the PIO availability map + * @dd: the qlogic_ib device + * + * called whenever our local copy indicates we have run out of send buffers + */ +static void update_send_bufs(struct qib_devdata *dd) +{ + unsigned long flags; + unsigned i; + const unsigned piobregs = dd->pioavregs; + + /* + * If the generation (check) bits have changed, then we update the + * busy bit for the corresponding PIO buffer. This algorithm will + * modify positions to the value they already have in some cases + * (i.e., no change), but it's faster than changing only the bits + * that have changed. + * + * We would like to do this atomicly, to avoid spinlocks in the + * critical send path, but that's not really possible, given the + * type of changes, and that this routine could be called on + * multiple cpu's simultaneously, so we lock in this routine only, + * to avoid conflicting updates; all we change is the shadow, and + * it's a single 64 bit memory location, so by definition the update + * is atomic in terms of what other cpu's can see in testing the + * bits. The spin_lock overhead isn't too bad, since it only + * happens when all buffers are in use, so only cpu overhead, not + * latency or bandwidth is affected. + */ + if (!dd->pioavailregs_dma) + return; + spin_lock_irqsave(&dd->pioavail_lock, flags); + for (i = 0; i < piobregs; i++) { + u64 pchbusy, pchg, piov, pnew; + + piov = le64_to_cpu(dd->pioavailregs_dma[i]); + pchg = dd->pioavailkernel[i] & + ~(dd->pioavailshadow[i] ^ piov); + pchbusy = pchg << QLOGIC_IB_SENDPIOAVAIL_BUSY_SHIFT; + if (pchg && (pchbusy & dd->pioavailshadow[i])) { + pnew = dd->pioavailshadow[i] & ~pchbusy; + pnew |= piov & pchbusy; + dd->pioavailshadow[i] = pnew; + } + } + spin_unlock_irqrestore(&dd->pioavail_lock, flags); +} + +/* + * Debugging code and stats updates if no pio buffers available. + */ +static noinline void no_send_bufs(struct qib_devdata *dd) +{ + dd->upd_pio_shadow = 1; + + /* not atomic, but if we lose a stat count in a while, that's OK */ + qib_stats.sps_nopiobufs++; +} + +/* + * Common code for normal driver send buffer allocation, and reserved + * allocation. + * + * Do appropriate marking as busy, etc. + * Returns buffer pointer if one is found, otherwise NULL. + */ +u32 __iomem *qib_getsendbuf_range(struct qib_devdata *dd, u32 *pbufnum, + u32 first, u32 last) +{ + unsigned i, j, updated = 0; + unsigned nbufs; + unsigned long flags; + unsigned long *shadow = dd->pioavailshadow; + u32 __iomem *buf; + + if (!(dd->flags & QIB_PRESENT)) + return NULL; + + nbufs = last - first + 1; /* number in range to check */ + if (dd->upd_pio_shadow) { +update_shadow: + /* + * Minor optimization. If we had no buffers on last call, + * start out by doing the update; continue and do scan even + * if no buffers were updated, to be paranoid. + */ + update_send_bufs(dd); + updated++; + } + i = first; + /* + * While test_and_set_bit() is atomic, we do that and then the + * change_bit(), and the pair is not. See if this is the cause + * of the remaining armlaunch errors. + */ + spin_lock_irqsave(&dd->pioavail_lock, flags); + if (dd->last_pio >= first && dd->last_pio <= last) + i = dd->last_pio + 1; + if (!first) + /* adjust to min possible */ + nbufs = last - dd->min_kernel_pio + 1; + for (j = 0; j < nbufs; j++, i++) { + if (i > last) + i = !first ? dd->min_kernel_pio : first; + if (__test_and_set_bit((2 * i) + 1, shadow)) + continue; + /* flip generation bit */ + __change_bit(2 * i, shadow); + /* remember that the buffer can be written to now */ + __set_bit(i, dd->pio_writing); + if (!first && first != last) /* first == last on VL15, avoid */ + dd->last_pio = i; + break; + } + spin_unlock_irqrestore(&dd->pioavail_lock, flags); + + if (j == nbufs) { + if (!updated) + /* + * First time through; shadow exhausted, but may be + * buffers available, try an update and then rescan. + */ + goto update_shadow; + no_send_bufs(dd); + buf = NULL; + } else { + if (i < dd->piobcnt2k) + buf = (u32 __iomem *)(dd->pio2kbase + + i * dd->palign); + else if (i < dd->piobcnt2k + dd->piobcnt4k || !dd->piovl15base) + buf = (u32 __iomem *)(dd->pio4kbase + + (i - dd->piobcnt2k) * dd->align4k); + else + buf = (u32 __iomem *)(dd->piovl15base + + (i - (dd->piobcnt2k + dd->piobcnt4k)) * + dd->align4k); + if (pbufnum) + *pbufnum = i; + dd->upd_pio_shadow = 0; + } + + return buf; +} + +/* + * Record that the caller is finished writing to the buffer so we don't + * disarm it while it is being written and disarm it now if needed. + */ +void qib_sendbuf_done(struct qib_devdata *dd, unsigned n) +{ + unsigned long flags; + + spin_lock_irqsave(&dd->pioavail_lock, flags); + __clear_bit(n, dd->pio_writing); + if (__test_and_clear_bit(n, dd->pio_need_disarm)) + dd->f_sendctrl(dd->pport, QIB_SENDCTRL_DISARM_BUF(n)); + spin_unlock_irqrestore(&dd->pioavail_lock, flags); +} + +/** + * qib_chg_pioavailkernel - change which send buffers are available for kernel + * @dd: the qlogic_ib device + * @start: the starting send buffer number + * @len: the number of send buffers + * @avail: true if the buffers are available for kernel use, false otherwise + * @rcd: the context pointer + */ +void qib_chg_pioavailkernel(struct qib_devdata *dd, unsigned start, + unsigned len, u32 avail, struct qib_ctxtdata *rcd) +{ + unsigned long flags; + unsigned end; + unsigned ostart = start; + + /* There are two bits per send buffer (busy and generation) */ + start *= 2; + end = start + len * 2; + + spin_lock_irqsave(&dd->pioavail_lock, flags); + /* Set or clear the busy bit in the shadow. */ + while (start < end) { + if (avail) { + unsigned long dma; + int i; + + /* + * The BUSY bit will never be set, because we disarm + * the user buffers before we hand them back to the + * kernel. We do have to make sure the generation + * bit is set correctly in shadow, since it could + * have changed many times while allocated to user. + * We can't use the bitmap functions on the full + * dma array because it is always little-endian, so + * we have to flip to host-order first. + * BITS_PER_LONG is slightly wrong, since it's + * always 64 bits per register in chip... + * We only work on 64 bit kernels, so that's OK. + */ + i = start / BITS_PER_LONG; + __clear_bit(QLOGIC_IB_SENDPIOAVAIL_BUSY_SHIFT + start, + dd->pioavailshadow); + dma = (unsigned long) + le64_to_cpu(dd->pioavailregs_dma[i]); + if (test_bit((QLOGIC_IB_SENDPIOAVAIL_CHECK_SHIFT + + start) % BITS_PER_LONG, &dma)) + __set_bit(QLOGIC_IB_SENDPIOAVAIL_CHECK_SHIFT + + start, dd->pioavailshadow); + else + __clear_bit(QLOGIC_IB_SENDPIOAVAIL_CHECK_SHIFT + + start, dd->pioavailshadow); + __set_bit(start, dd->pioavailkernel); + if ((start >> 1) < dd->min_kernel_pio) + dd->min_kernel_pio = start >> 1; + } else { + __set_bit(start + QLOGIC_IB_SENDPIOAVAIL_BUSY_SHIFT, + dd->pioavailshadow); + __clear_bit(start, dd->pioavailkernel); + if ((start >> 1) > dd->min_kernel_pio) + dd->min_kernel_pio = start >> 1; + } + start += 2; + } + + if (dd->min_kernel_pio > 0 && dd->last_pio < dd->min_kernel_pio - 1) + dd->last_pio = dd->min_kernel_pio - 1; + spin_unlock_irqrestore(&dd->pioavail_lock, flags); + + dd->f_txchk_change(dd, ostart, len, avail, rcd); +} + +/* + * Flush all sends that might be in the ready to send state, as well as any + * that are in the process of being sent. Used whenever we need to be + * sure the send side is idle. Cleans up all buffer state by canceling + * all pio buffers, and issuing an abort, which cleans up anything in the + * launch fifo. The cancel is superfluous on some chip versions, but + * it's safer to always do it. + * PIOAvail bits are updated by the chip as if a normal send had happened. + */ +void qib_cancel_sends(struct qib_pportdata *ppd) +{ + struct qib_devdata *dd = ppd->dd; + struct qib_ctxtdata *rcd; + unsigned long flags; + unsigned ctxt; + unsigned i; + unsigned last; + + /* + * Tell PSM to disarm buffers again before trying to reuse them. + * We need to be sure the rcd doesn't change out from under us + * while we do so. We hold the two locks sequentially. We might + * needlessly set some need_disarm bits as a result, if the + * context is closed after we release the uctxt_lock, but that's + * fairly benign, and safer than nesting the locks. + */ + for (ctxt = dd->first_user_ctxt; ctxt < dd->cfgctxts; ctxt++) { + spin_lock_irqsave(&dd->uctxt_lock, flags); + rcd = dd->rcd[ctxt]; + if (rcd && rcd->ppd == ppd) { + last = rcd->pio_base + rcd->piocnt; + if (rcd->user_event_mask) { + /* + * subctxt_cnt is 0 if not shared, so do base + * separately, first, then remaining subctxt, + * if any + */ + set_bit(_QIB_EVENT_DISARM_BUFS_BIT, + &rcd->user_event_mask[0]); + for (i = 1; i < rcd->subctxt_cnt; i++) + set_bit(_QIB_EVENT_DISARM_BUFS_BIT, + &rcd->user_event_mask[i]); + } + i = rcd->pio_base; + spin_unlock_irqrestore(&dd->uctxt_lock, flags); + spin_lock_irqsave(&dd->pioavail_lock, flags); + for (; i < last; i++) + __set_bit(i, dd->pio_need_disarm); + spin_unlock_irqrestore(&dd->pioavail_lock, flags); + } else + spin_unlock_irqrestore(&dd->uctxt_lock, flags); + } + + if (!(dd->flags & QIB_HAS_SEND_DMA)) + dd->f_sendctrl(ppd, QIB_SENDCTRL_DISARM_ALL | + QIB_SENDCTRL_FLUSH); +} + +/* + * Force an update of in-memory copy of the pioavail registers, when + * needed for any of a variety of reasons. + * If already off, this routine is a nop, on the assumption that the + * caller (or set of callers) will "do the right thing". + * This is a per-device operation, so just the first port. + */ +void qib_force_pio_avail_update(struct qib_devdata *dd) +{ + dd->f_sendctrl(dd->pport, QIB_SENDCTRL_AVAIL_BLIP); +} + +void qib_hol_down(struct qib_pportdata *ppd) +{ + /* + * Cancel sends when the link goes DOWN so that we aren't doing it + * at INIT when we might be trying to send SMI packets. + */ + if (!(ppd->lflags & QIBL_IB_AUTONEG_INPROG)) + qib_cancel_sends(ppd); +} + +/* + * Link is at INIT. + * We start the HoL timer so we can detect stuck packets blocking SMP replies. + * Timer may already be running, so use mod_timer, not add_timer. + */ +void qib_hol_init(struct qib_pportdata *ppd) +{ + if (ppd->hol_state != QIB_HOL_INIT) { + ppd->hol_state = QIB_HOL_INIT; + mod_timer(&ppd->hol_timer, + jiffies + msecs_to_jiffies(qib_hol_timeout_ms)); + } +} + +/* + * Link is up, continue any user processes, and ensure timer + * is a nop, if running. Let timer keep running, if set; it + * will nop when it sees the link is up. + */ +void qib_hol_up(struct qib_pportdata *ppd) +{ + ppd->hol_state = QIB_HOL_UP; +} + +/* + * This is only called via the timer. + */ +void qib_hol_event(struct timer_list *t) +{ + struct qib_pportdata *ppd = from_timer(ppd, t, hol_timer); + + /* If hardware error, etc, skip. */ + if (!(ppd->dd->flags & QIB_INITTED)) + return; + + if (ppd->hol_state != QIB_HOL_UP) { + /* + * Try to flush sends in case a stuck packet is blocking + * SMP replies. + */ + qib_hol_down(ppd); + mod_timer(&ppd->hol_timer, + jiffies + msecs_to_jiffies(qib_hol_timeout_ms)); + } +} diff --git a/drivers/infiniband/hw/qib/qib_uc.c b/drivers/infiniband/hw/qib/qib_uc.c new file mode 100644 index 000000000..8e2bda77d --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_uc.c @@ -0,0 +1,521 @@ +/* + * Copyright (c) 2006, 2007, 2008, 2009, 2010 QLogic Corporation. + * All rights reserved. + * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "qib.h" + +/* cut down ridiculously long IB macro names */ +#define OP(x) IB_OPCODE_UC_##x + +/** + * qib_make_uc_req - construct a request packet (SEND, RDMA write) + * @qp: a pointer to the QP + * @flags: unused + * + * Assumes the s_lock is held. + * + * Return 1 if constructed; otherwise, return 0. + */ +int qib_make_uc_req(struct rvt_qp *qp, unsigned long *flags) +{ + struct qib_qp_priv *priv = qp->priv; + struct ib_other_headers *ohdr; + struct rvt_swqe *wqe; + u32 hwords; + u32 bth0; + u32 len; + u32 pmtu = qp->pmtu; + int ret = 0; + + if (!(ib_rvt_state_ops[qp->state] & RVT_PROCESS_SEND_OK)) { + if (!(ib_rvt_state_ops[qp->state] & RVT_FLUSH_SEND)) + goto bail; + /* We are in the error state, flush the work request. */ + if (qp->s_last == READ_ONCE(qp->s_head)) + goto bail; + /* If DMAs are in progress, we can't flush immediately. */ + if (atomic_read(&priv->s_dma_busy)) { + qp->s_flags |= RVT_S_WAIT_DMA; + goto bail; + } + wqe = rvt_get_swqe_ptr(qp, qp->s_last); + rvt_send_complete(qp, wqe, IB_WC_WR_FLUSH_ERR); + goto done; + } + + ohdr = &priv->s_hdr->u.oth; + if (rdma_ah_get_ah_flags(&qp->remote_ah_attr) & IB_AH_GRH) + ohdr = &priv->s_hdr->u.l.oth; + + /* header size in 32-bit words LRH+BTH = (8+12)/4. */ + hwords = 5; + bth0 = 0; + + /* Get the next send request. */ + wqe = rvt_get_swqe_ptr(qp, qp->s_cur); + qp->s_wqe = NULL; + switch (qp->s_state) { + default: + if (!(ib_rvt_state_ops[qp->state] & + RVT_PROCESS_NEXT_SEND_OK)) + goto bail; + /* Check if send work queue is empty. */ + if (qp->s_cur == READ_ONCE(qp->s_head)) + goto bail; + /* + * Start a new request. + */ + qp->s_psn = wqe->psn; + qp->s_sge.sge = wqe->sg_list[0]; + qp->s_sge.sg_list = wqe->sg_list + 1; + qp->s_sge.num_sge = wqe->wr.num_sge; + qp->s_sge.total_len = wqe->length; + len = wqe->length; + qp->s_len = len; + switch (wqe->wr.opcode) { + case IB_WR_SEND: + case IB_WR_SEND_WITH_IMM: + if (len > pmtu) { + qp->s_state = OP(SEND_FIRST); + len = pmtu; + break; + } + if (wqe->wr.opcode == IB_WR_SEND) + qp->s_state = OP(SEND_ONLY); + else { + qp->s_state = + OP(SEND_ONLY_WITH_IMMEDIATE); + /* Immediate data comes after the BTH */ + ohdr->u.imm_data = wqe->wr.ex.imm_data; + hwords += 1; + } + if (wqe->wr.send_flags & IB_SEND_SOLICITED) + bth0 |= IB_BTH_SOLICITED; + qp->s_wqe = wqe; + if (++qp->s_cur >= qp->s_size) + qp->s_cur = 0; + break; + + case IB_WR_RDMA_WRITE: + case IB_WR_RDMA_WRITE_WITH_IMM: + ohdr->u.rc.reth.vaddr = + cpu_to_be64(wqe->rdma_wr.remote_addr); + ohdr->u.rc.reth.rkey = + cpu_to_be32(wqe->rdma_wr.rkey); + ohdr->u.rc.reth.length = cpu_to_be32(len); + hwords += sizeof(struct ib_reth) / 4; + if (len > pmtu) { + qp->s_state = OP(RDMA_WRITE_FIRST); + len = pmtu; + break; + } + if (wqe->wr.opcode == IB_WR_RDMA_WRITE) + qp->s_state = OP(RDMA_WRITE_ONLY); + else { + qp->s_state = + OP(RDMA_WRITE_ONLY_WITH_IMMEDIATE); + /* Immediate data comes after the RETH */ + ohdr->u.rc.imm_data = wqe->wr.ex.imm_data; + hwords += 1; + if (wqe->wr.send_flags & IB_SEND_SOLICITED) + bth0 |= IB_BTH_SOLICITED; + } + qp->s_wqe = wqe; + if (++qp->s_cur >= qp->s_size) + qp->s_cur = 0; + break; + + default: + goto bail; + } + break; + + case OP(SEND_FIRST): + qp->s_state = OP(SEND_MIDDLE); + fallthrough; + case OP(SEND_MIDDLE): + len = qp->s_len; + if (len > pmtu) { + len = pmtu; + break; + } + if (wqe->wr.opcode == IB_WR_SEND) + qp->s_state = OP(SEND_LAST); + else { + qp->s_state = OP(SEND_LAST_WITH_IMMEDIATE); + /* Immediate data comes after the BTH */ + ohdr->u.imm_data = wqe->wr.ex.imm_data; + hwords += 1; + } + if (wqe->wr.send_flags & IB_SEND_SOLICITED) + bth0 |= IB_BTH_SOLICITED; + qp->s_wqe = wqe; + if (++qp->s_cur >= qp->s_size) + qp->s_cur = 0; + break; + + case OP(RDMA_WRITE_FIRST): + qp->s_state = OP(RDMA_WRITE_MIDDLE); + fallthrough; + case OP(RDMA_WRITE_MIDDLE): + len = qp->s_len; + if (len > pmtu) { + len = pmtu; + break; + } + if (wqe->wr.opcode == IB_WR_RDMA_WRITE) + qp->s_state = OP(RDMA_WRITE_LAST); + else { + qp->s_state = + OP(RDMA_WRITE_LAST_WITH_IMMEDIATE); + /* Immediate data comes after the BTH */ + ohdr->u.imm_data = wqe->wr.ex.imm_data; + hwords += 1; + if (wqe->wr.send_flags & IB_SEND_SOLICITED) + bth0 |= IB_BTH_SOLICITED; + } + qp->s_wqe = wqe; + if (++qp->s_cur >= qp->s_size) + qp->s_cur = 0; + break; + } + qp->s_len -= len; + qp->s_hdrwords = hwords; + qp->s_cur_sge = &qp->s_sge; + qp->s_cur_size = len; + qib_make_ruc_header(qp, ohdr, bth0 | (qp->s_state << 24), + qp->s_psn++ & QIB_PSN_MASK); +done: + return 1; +bail: + qp->s_flags &= ~RVT_S_BUSY; + return ret; +} + +/** + * qib_uc_rcv - handle an incoming UC packet + * @ibp: the port the packet came in on + * @hdr: the header of the packet + * @has_grh: true if the packet has a GRH + * @data: the packet data + * @tlen: the length of the packet + * @qp: the QP for this packet. + * + * This is called from qib_qp_rcv() to process an incoming UC packet + * for the given QP. + * Called at interrupt level. + */ +void qib_uc_rcv(struct qib_ibport *ibp, struct ib_header *hdr, + int has_grh, void *data, u32 tlen, struct rvt_qp *qp) +{ + struct ib_other_headers *ohdr; + u32 opcode; + u32 hdrsize; + u32 psn; + u32 pad; + struct ib_wc wc; + u32 pmtu = qp->pmtu; + struct ib_reth *reth; + int ret; + + /* Check for GRH */ + if (!has_grh) { + ohdr = &hdr->u.oth; + hdrsize = 8 + 12; /* LRH + BTH */ + } else { + ohdr = &hdr->u.l.oth; + hdrsize = 8 + 40 + 12; /* LRH + GRH + BTH */ + } + + opcode = be32_to_cpu(ohdr->bth[0]); + if (qib_ruc_check_hdr(ibp, hdr, has_grh, qp, opcode)) + return; + + psn = be32_to_cpu(ohdr->bth[2]); + opcode >>= 24; + + /* Compare the PSN verses the expected PSN. */ + if (unlikely(qib_cmp24(psn, qp->r_psn) != 0)) { + /* + * Handle a sequence error. + * Silently drop any current message. + */ + qp->r_psn = psn; +inv: + if (qp->r_state == OP(SEND_FIRST) || + qp->r_state == OP(SEND_MIDDLE)) { + set_bit(RVT_R_REWIND_SGE, &qp->r_aflags); + qp->r_sge.num_sge = 0; + } else + rvt_put_ss(&qp->r_sge); + qp->r_state = OP(SEND_LAST); + switch (opcode) { + case OP(SEND_FIRST): + case OP(SEND_ONLY): + case OP(SEND_ONLY_WITH_IMMEDIATE): + goto send_first; + + case OP(RDMA_WRITE_FIRST): + case OP(RDMA_WRITE_ONLY): + case OP(RDMA_WRITE_ONLY_WITH_IMMEDIATE): + goto rdma_first; + + default: + goto drop; + } + } + + /* Check for opcode sequence errors. */ + switch (qp->r_state) { + case OP(SEND_FIRST): + case OP(SEND_MIDDLE): + if (opcode == OP(SEND_MIDDLE) || + opcode == OP(SEND_LAST) || + opcode == OP(SEND_LAST_WITH_IMMEDIATE)) + break; + goto inv; + + case OP(RDMA_WRITE_FIRST): + case OP(RDMA_WRITE_MIDDLE): + if (opcode == OP(RDMA_WRITE_MIDDLE) || + opcode == OP(RDMA_WRITE_LAST) || + opcode == OP(RDMA_WRITE_LAST_WITH_IMMEDIATE)) + break; + goto inv; + + default: + if (opcode == OP(SEND_FIRST) || + opcode == OP(SEND_ONLY) || + opcode == OP(SEND_ONLY_WITH_IMMEDIATE) || + opcode == OP(RDMA_WRITE_FIRST) || + opcode == OP(RDMA_WRITE_ONLY) || + opcode == OP(RDMA_WRITE_ONLY_WITH_IMMEDIATE)) + break; + goto inv; + } + + if (qp->state == IB_QPS_RTR && !(qp->r_flags & RVT_R_COMM_EST)) + rvt_comm_est(qp); + + /* OK, process the packet. */ + switch (opcode) { + case OP(SEND_FIRST): + case OP(SEND_ONLY): + case OP(SEND_ONLY_WITH_IMMEDIATE): +send_first: + if (test_and_clear_bit(RVT_R_REWIND_SGE, &qp->r_aflags)) + qp->r_sge = qp->s_rdma_read_sge; + else { + ret = rvt_get_rwqe(qp, false); + if (ret < 0) + goto op_err; + if (!ret) + goto drop; + /* + * qp->s_rdma_read_sge will be the owner + * of the mr references. + */ + qp->s_rdma_read_sge = qp->r_sge; + } + qp->r_rcv_len = 0; + if (opcode == OP(SEND_ONLY)) + goto no_immediate_data; + else if (opcode == OP(SEND_ONLY_WITH_IMMEDIATE)) + goto send_last_imm; + fallthrough; + case OP(SEND_MIDDLE): + /* Check for invalid length PMTU or posted rwqe len. */ + if (unlikely(tlen != (hdrsize + pmtu + 4))) + goto rewind; + qp->r_rcv_len += pmtu; + if (unlikely(qp->r_rcv_len > qp->r_len)) + goto rewind; + rvt_copy_sge(qp, &qp->r_sge, data, pmtu, false, false); + break; + + case OP(SEND_LAST_WITH_IMMEDIATE): +send_last_imm: + wc.ex.imm_data = ohdr->u.imm_data; + hdrsize += 4; + wc.wc_flags = IB_WC_WITH_IMM; + goto send_last; + case OP(SEND_LAST): +no_immediate_data: + wc.ex.imm_data = 0; + wc.wc_flags = 0; +send_last: + /* Get the number of bytes the message was padded by. */ + pad = (be32_to_cpu(ohdr->bth[0]) >> 20) & 3; + /* Check for invalid length. */ + /* XXX LAST len should be >= 1 */ + if (unlikely(tlen < (hdrsize + pad + 4))) + goto rewind; + /* Don't count the CRC. */ + tlen -= (hdrsize + pad + 4); + wc.byte_len = tlen + qp->r_rcv_len; + if (unlikely(wc.byte_len > qp->r_len)) + goto rewind; + wc.opcode = IB_WC_RECV; + rvt_copy_sge(qp, &qp->r_sge, data, tlen, false, false); + rvt_put_ss(&qp->s_rdma_read_sge); +last_imm: + wc.wr_id = qp->r_wr_id; + wc.status = IB_WC_SUCCESS; + wc.qp = &qp->ibqp; + wc.src_qp = qp->remote_qpn; + wc.slid = rdma_ah_get_dlid(&qp->remote_ah_attr); + wc.sl = rdma_ah_get_sl(&qp->remote_ah_attr); + /* zero fields that are N/A */ + wc.vendor_err = 0; + wc.pkey_index = 0; + wc.dlid_path_bits = 0; + wc.port_num = 0; + /* Signal completion event if the solicited bit is set. */ + rvt_recv_cq(qp, &wc, ib_bth_is_solicited(ohdr)); + break; + + case OP(RDMA_WRITE_FIRST): + case OP(RDMA_WRITE_ONLY): + case OP(RDMA_WRITE_ONLY_WITH_IMMEDIATE): /* consume RWQE */ +rdma_first: + if (unlikely(!(qp->qp_access_flags & + IB_ACCESS_REMOTE_WRITE))) { + goto drop; + } + reth = &ohdr->u.rc.reth; + hdrsize += sizeof(*reth); + qp->r_len = be32_to_cpu(reth->length); + qp->r_rcv_len = 0; + qp->r_sge.sg_list = NULL; + if (qp->r_len != 0) { + u32 rkey = be32_to_cpu(reth->rkey); + u64 vaddr = be64_to_cpu(reth->vaddr); + int ok; + + /* Check rkey */ + ok = rvt_rkey_ok(qp, &qp->r_sge.sge, qp->r_len, + vaddr, rkey, IB_ACCESS_REMOTE_WRITE); + if (unlikely(!ok)) + goto drop; + qp->r_sge.num_sge = 1; + } else { + qp->r_sge.num_sge = 0; + qp->r_sge.sge.mr = NULL; + qp->r_sge.sge.vaddr = NULL; + qp->r_sge.sge.length = 0; + qp->r_sge.sge.sge_length = 0; + } + if (opcode == OP(RDMA_WRITE_ONLY)) + goto rdma_last; + else if (opcode == OP(RDMA_WRITE_ONLY_WITH_IMMEDIATE)) { + wc.ex.imm_data = ohdr->u.rc.imm_data; + goto rdma_last_imm; + } + fallthrough; + case OP(RDMA_WRITE_MIDDLE): + /* Check for invalid length PMTU or posted rwqe len. */ + if (unlikely(tlen != (hdrsize + pmtu + 4))) + goto drop; + qp->r_rcv_len += pmtu; + if (unlikely(qp->r_rcv_len > qp->r_len)) + goto drop; + rvt_copy_sge(qp, &qp->r_sge, data, pmtu, true, false); + break; + + case OP(RDMA_WRITE_LAST_WITH_IMMEDIATE): + wc.ex.imm_data = ohdr->u.imm_data; +rdma_last_imm: + hdrsize += 4; + wc.wc_flags = IB_WC_WITH_IMM; + + /* Get the number of bytes the message was padded by. */ + pad = (be32_to_cpu(ohdr->bth[0]) >> 20) & 3; + /* Check for invalid length. */ + /* XXX LAST len should be >= 1 */ + if (unlikely(tlen < (hdrsize + pad + 4))) + goto drop; + /* Don't count the CRC. */ + tlen -= (hdrsize + pad + 4); + if (unlikely(tlen + qp->r_rcv_len != qp->r_len)) + goto drop; + if (test_and_clear_bit(RVT_R_REWIND_SGE, &qp->r_aflags)) + rvt_put_ss(&qp->s_rdma_read_sge); + else { + ret = rvt_get_rwqe(qp, true); + if (ret < 0) + goto op_err; + if (!ret) + goto drop; + } + wc.byte_len = qp->r_len; + wc.opcode = IB_WC_RECV_RDMA_WITH_IMM; + rvt_copy_sge(qp, &qp->r_sge, data, tlen, true, false); + rvt_put_ss(&qp->r_sge); + goto last_imm; + + case OP(RDMA_WRITE_LAST): +rdma_last: + /* Get the number of bytes the message was padded by. */ + pad = (be32_to_cpu(ohdr->bth[0]) >> 20) & 3; + /* Check for invalid length. */ + /* XXX LAST len should be >= 1 */ + if (unlikely(tlen < (hdrsize + pad + 4))) + goto drop; + /* Don't count the CRC. */ + tlen -= (hdrsize + pad + 4); + if (unlikely(tlen + qp->r_rcv_len != qp->r_len)) + goto drop; + rvt_copy_sge(qp, &qp->r_sge, data, tlen, true, false); + rvt_put_ss(&qp->r_sge); + break; + + default: + /* Drop packet for unknown opcodes. */ + goto drop; + } + qp->r_psn++; + qp->r_state = opcode; + return; + +rewind: + set_bit(RVT_R_REWIND_SGE, &qp->r_aflags); + qp->r_sge.num_sge = 0; +drop: + ibp->rvp.n_pkt_drops++; + return; + +op_err: + rvt_rc_error(qp, IB_WC_LOC_QP_OP_ERR); + return; + +} diff --git a/drivers/infiniband/hw/qib/qib_ud.c b/drivers/infiniband/hw/qib/qib_ud.c new file mode 100644 index 000000000..81eda94bd --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_ud.c @@ -0,0 +1,583 @@ +/* + * Copyright (c) 2012 - 2019 Intel Corporation. All rights reserved. + * Copyright (c) 2006, 2007, 2008, 2009 QLogic Corporation. All rights reserved. + * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <rdma/ib_smi.h> +#include <rdma/ib_verbs.h> + +#include "qib.h" +#include "qib_mad.h" + +/** + * qib_ud_loopback - handle send on loopback QPs + * @sqp: the sending QP + * @swqe: the send work request + * + * This is called from qib_make_ud_req() to forward a WQE addressed + * to the same HCA. + * Note that the receive interrupt handler may be calling qib_ud_rcv() + * while this is being called. + */ +static void qib_ud_loopback(struct rvt_qp *sqp, struct rvt_swqe *swqe) +{ + struct qib_ibport *ibp = to_iport(sqp->ibqp.device, sqp->port_num); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + struct qib_devdata *dd = ppd->dd; + struct rvt_dev_info *rdi = &dd->verbs_dev.rdi; + struct rvt_qp *qp; + struct rdma_ah_attr *ah_attr; + unsigned long flags; + struct rvt_sge_state ssge; + struct rvt_sge *sge; + struct ib_wc wc; + u32 length; + enum ib_qp_type sqptype, dqptype; + + rcu_read_lock(); + qp = rvt_lookup_qpn(rdi, &ibp->rvp, rvt_get_swqe_remote_qpn(swqe)); + if (!qp) { + ibp->rvp.n_pkt_drops++; + goto drop; + } + + sqptype = sqp->ibqp.qp_type == IB_QPT_GSI ? + IB_QPT_UD : sqp->ibqp.qp_type; + dqptype = qp->ibqp.qp_type == IB_QPT_GSI ? + IB_QPT_UD : qp->ibqp.qp_type; + + if (dqptype != sqptype || + !(ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK)) { + ibp->rvp.n_pkt_drops++; + goto drop; + } + + ah_attr = rvt_get_swqe_ah_attr(swqe); + ppd = ppd_from_ibp(ibp); + + if (qp->ibqp.qp_num > 1) { + u16 pkey1; + u16 pkey2; + u16 lid; + + pkey1 = qib_get_pkey(ibp, sqp->s_pkey_index); + pkey2 = qib_get_pkey(ibp, qp->s_pkey_index); + if (unlikely(!qib_pkey_ok(pkey1, pkey2))) { + lid = ppd->lid | (rdma_ah_get_path_bits(ah_attr) & + ((1 << ppd->lmc) - 1)); + qib_bad_pkey(ibp, pkey1, + rdma_ah_get_sl(ah_attr), + sqp->ibqp.qp_num, qp->ibqp.qp_num, + cpu_to_be16(lid), + cpu_to_be16(rdma_ah_get_dlid(ah_attr))); + goto drop; + } + } + + /* + * Check that the qkey matches (except for QP0, see 9.6.1.4.1). + * Qkeys with the high order bit set mean use the + * qkey from the QP context instead of the WR (see 10.2.5). + */ + if (qp->ibqp.qp_num) { + u32 qkey; + + qkey = (int)rvt_get_swqe_remote_qkey(swqe) < 0 ? + sqp->qkey : rvt_get_swqe_remote_qkey(swqe); + if (unlikely(qkey != qp->qkey)) + goto drop; + } + + /* + * A GRH is expected to precede the data even if not + * present on the wire. + */ + length = swqe->length; + memset(&wc, 0, sizeof(wc)); + wc.byte_len = length + sizeof(struct ib_grh); + + if (swqe->wr.opcode == IB_WR_SEND_WITH_IMM) { + wc.wc_flags = IB_WC_WITH_IMM; + wc.ex.imm_data = swqe->wr.ex.imm_data; + } + + spin_lock_irqsave(&qp->r_lock, flags); + + /* + * Get the next work request entry to find where to put the data. + */ + if (qp->r_flags & RVT_R_REUSE_SGE) + qp->r_flags &= ~RVT_R_REUSE_SGE; + else { + int ret; + + ret = rvt_get_rwqe(qp, false); + if (ret < 0) { + rvt_rc_error(qp, IB_WC_LOC_QP_OP_ERR); + goto bail_unlock; + } + if (!ret) { + if (qp->ibqp.qp_num == 0) + ibp->rvp.n_vl15_dropped++; + goto bail_unlock; + } + } + /* Silently drop packets which are too big. */ + if (unlikely(wc.byte_len > qp->r_len)) { + qp->r_flags |= RVT_R_REUSE_SGE; + ibp->rvp.n_pkt_drops++; + goto bail_unlock; + } + + if (rdma_ah_get_ah_flags(ah_attr) & IB_AH_GRH) { + struct ib_grh grh; + const struct ib_global_route *grd = rdma_ah_read_grh(ah_attr); + + qib_make_grh(ibp, &grh, grd, 0, 0); + rvt_copy_sge(qp, &qp->r_sge, &grh, + sizeof(grh), true, false); + wc.wc_flags |= IB_WC_GRH; + } else + rvt_skip_sge(&qp->r_sge, sizeof(struct ib_grh), true); + ssge.sg_list = swqe->sg_list + 1; + ssge.sge = *swqe->sg_list; + ssge.num_sge = swqe->wr.num_sge; + sge = &ssge.sge; + while (length) { + u32 len = rvt_get_sge_length(sge, length); + + rvt_copy_sge(qp, &qp->r_sge, sge->vaddr, len, true, false); + sge->vaddr += len; + sge->length -= len; + sge->sge_length -= len; + if (sge->sge_length == 0) { + if (--ssge.num_sge) + *sge = *ssge.sg_list++; + } else if (sge->length == 0 && sge->mr->lkey) { + if (++sge->n >= RVT_SEGSZ) { + if (++sge->m >= sge->mr->mapsz) + break; + sge->n = 0; + } + sge->vaddr = + sge->mr->map[sge->m]->segs[sge->n].vaddr; + sge->length = + sge->mr->map[sge->m]->segs[sge->n].length; + } + length -= len; + } + rvt_put_ss(&qp->r_sge); + if (!test_and_clear_bit(RVT_R_WRID_VALID, &qp->r_aflags)) + goto bail_unlock; + wc.wr_id = qp->r_wr_id; + wc.status = IB_WC_SUCCESS; + wc.opcode = IB_WC_RECV; + wc.qp = &qp->ibqp; + wc.src_qp = sqp->ibqp.qp_num; + wc.pkey_index = qp->ibqp.qp_type == IB_QPT_GSI ? + rvt_get_swqe_pkey_index(swqe) : 0; + wc.slid = ppd->lid | (rdma_ah_get_path_bits(ah_attr) & + ((1 << ppd->lmc) - 1)); + wc.sl = rdma_ah_get_sl(ah_attr); + wc.dlid_path_bits = rdma_ah_get_dlid(ah_attr) & ((1 << ppd->lmc) - 1); + wc.port_num = qp->port_num; + /* Signal completion event if the solicited bit is set. */ + rvt_recv_cq(qp, &wc, swqe->wr.send_flags & IB_SEND_SOLICITED); + ibp->rvp.n_loop_pkts++; +bail_unlock: + spin_unlock_irqrestore(&qp->r_lock, flags); +drop: + rcu_read_unlock(); +} + +/** + * qib_make_ud_req - construct a UD request packet + * @qp: the QP + * @flags: flags to modify and pass back to caller + * + * Assumes the s_lock is held. + * + * Return 1 if constructed; otherwise, return 0. + */ +int qib_make_ud_req(struct rvt_qp *qp, unsigned long *flags) +{ + struct qib_qp_priv *priv = qp->priv; + struct ib_other_headers *ohdr; + struct rdma_ah_attr *ah_attr; + struct qib_pportdata *ppd; + struct qib_ibport *ibp; + struct rvt_swqe *wqe; + u32 nwords; + u32 extra_bytes; + u32 bth0; + u16 lrh0; + u16 lid; + int ret = 0; + int next_cur; + + if (!(ib_rvt_state_ops[qp->state] & RVT_PROCESS_NEXT_SEND_OK)) { + if (!(ib_rvt_state_ops[qp->state] & RVT_FLUSH_SEND)) + goto bail; + /* We are in the error state, flush the work request. */ + if (qp->s_last == READ_ONCE(qp->s_head)) + goto bail; + /* If DMAs are in progress, we can't flush immediately. */ + if (atomic_read(&priv->s_dma_busy)) { + qp->s_flags |= RVT_S_WAIT_DMA; + goto bail; + } + wqe = rvt_get_swqe_ptr(qp, qp->s_last); + rvt_send_complete(qp, wqe, IB_WC_WR_FLUSH_ERR); + goto done; + } + + /* see post_one_send() */ + if (qp->s_cur == READ_ONCE(qp->s_head)) + goto bail; + + wqe = rvt_get_swqe_ptr(qp, qp->s_cur); + next_cur = qp->s_cur + 1; + if (next_cur >= qp->s_size) + next_cur = 0; + + /* Construct the header. */ + ibp = to_iport(qp->ibqp.device, qp->port_num); + ppd = ppd_from_ibp(ibp); + ah_attr = rvt_get_swqe_ah_attr(wqe); + if (rdma_ah_get_dlid(ah_attr) >= be16_to_cpu(IB_MULTICAST_LID_BASE)) { + if (rdma_ah_get_dlid(ah_attr) != + be16_to_cpu(IB_LID_PERMISSIVE)) + this_cpu_inc(ibp->pmastats->n_multicast_xmit); + else + this_cpu_inc(ibp->pmastats->n_unicast_xmit); + } else { + this_cpu_inc(ibp->pmastats->n_unicast_xmit); + lid = rdma_ah_get_dlid(ah_attr) & ~((1 << ppd->lmc) - 1); + if (unlikely(lid == ppd->lid)) { + unsigned long tflags = *flags; + /* + * If DMAs are in progress, we can't generate + * a completion for the loopback packet since + * it would be out of order. + * XXX Instead of waiting, we could queue a + * zero length descriptor so we get a callback. + */ + if (atomic_read(&priv->s_dma_busy)) { + qp->s_flags |= RVT_S_WAIT_DMA; + goto bail; + } + qp->s_cur = next_cur; + spin_unlock_irqrestore(&qp->s_lock, tflags); + qib_ud_loopback(qp, wqe); + spin_lock_irqsave(&qp->s_lock, tflags); + *flags = tflags; + rvt_send_complete(qp, wqe, IB_WC_SUCCESS); + goto done; + } + } + + qp->s_cur = next_cur; + extra_bytes = -wqe->length & 3; + nwords = (wqe->length + extra_bytes) >> 2; + + /* header size in 32-bit words LRH+BTH+DETH = (8+12+8)/4. */ + qp->s_hdrwords = 7; + qp->s_cur_size = wqe->length; + qp->s_cur_sge = &qp->s_sge; + qp->s_srate = rdma_ah_get_static_rate(ah_attr); + qp->s_wqe = wqe; + qp->s_sge.sge = wqe->sg_list[0]; + qp->s_sge.sg_list = wqe->sg_list + 1; + qp->s_sge.num_sge = wqe->wr.num_sge; + qp->s_sge.total_len = wqe->length; + + if (rdma_ah_get_ah_flags(ah_attr) & IB_AH_GRH) { + /* Header size in 32-bit words. */ + qp->s_hdrwords += qib_make_grh(ibp, &priv->s_hdr->u.l.grh, + rdma_ah_read_grh(ah_attr), + qp->s_hdrwords, nwords); + lrh0 = QIB_LRH_GRH; + ohdr = &priv->s_hdr->u.l.oth; + /* + * Don't worry about sending to locally attached multicast + * QPs. It is unspecified by the spec. what happens. + */ + } else { + /* Header size in 32-bit words. */ + lrh0 = QIB_LRH_BTH; + ohdr = &priv->s_hdr->u.oth; + } + if (wqe->wr.opcode == IB_WR_SEND_WITH_IMM) { + qp->s_hdrwords++; + ohdr->u.ud.imm_data = wqe->wr.ex.imm_data; + bth0 = IB_OPCODE_UD_SEND_ONLY_WITH_IMMEDIATE << 24; + } else + bth0 = IB_OPCODE_UD_SEND_ONLY << 24; + lrh0 |= rdma_ah_get_sl(ah_attr) << 4; + if (qp->ibqp.qp_type == IB_QPT_SMI) + lrh0 |= 0xF000; /* Set VL (see ch. 13.5.3.1) */ + else + lrh0 |= ibp->sl_to_vl[rdma_ah_get_sl(ah_attr)] << 12; + priv->s_hdr->lrh[0] = cpu_to_be16(lrh0); + priv->s_hdr->lrh[1] = + cpu_to_be16(rdma_ah_get_dlid(ah_attr)); /* DEST LID */ + priv->s_hdr->lrh[2] = + cpu_to_be16(qp->s_hdrwords + nwords + SIZE_OF_CRC); + lid = ppd->lid; + if (lid) { + lid |= rdma_ah_get_path_bits(ah_attr) & + ((1 << ppd->lmc) - 1); + priv->s_hdr->lrh[3] = cpu_to_be16(lid); + } else + priv->s_hdr->lrh[3] = IB_LID_PERMISSIVE; + if (wqe->wr.send_flags & IB_SEND_SOLICITED) + bth0 |= IB_BTH_SOLICITED; + bth0 |= extra_bytes << 20; + bth0 |= qp->ibqp.qp_type == IB_QPT_SMI ? QIB_DEFAULT_P_KEY : + qib_get_pkey(ibp, qp->ibqp.qp_type == IB_QPT_GSI ? + rvt_get_swqe_pkey_index(wqe) : qp->s_pkey_index); + ohdr->bth[0] = cpu_to_be32(bth0); + /* + * Use the multicast QP if the destination LID is a multicast LID. + */ + ohdr->bth[1] = rdma_ah_get_dlid(ah_attr) >= + be16_to_cpu(IB_MULTICAST_LID_BASE) && + rdma_ah_get_dlid(ah_attr) != be16_to_cpu(IB_LID_PERMISSIVE) ? + cpu_to_be32(QIB_MULTICAST_QPN) : + cpu_to_be32(rvt_get_swqe_remote_qpn(wqe)); + ohdr->bth[2] = cpu_to_be32(wqe->psn & QIB_PSN_MASK); + /* + * Qkeys with the high order bit set mean use the + * qkey from the QP context instead of the WR (see 10.2.5). + */ + ohdr->u.ud.deth[0] = + cpu_to_be32((int)rvt_get_swqe_remote_qkey(wqe) < 0 ? qp->qkey : + rvt_get_swqe_remote_qkey(wqe)); + ohdr->u.ud.deth[1] = cpu_to_be32(qp->ibqp.qp_num); + +done: + return 1; +bail: + qp->s_flags &= ~RVT_S_BUSY; + return ret; +} + +static unsigned qib_lookup_pkey(struct qib_ibport *ibp, u16 pkey) +{ + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + struct qib_devdata *dd = ppd->dd; + unsigned ctxt = ppd->hw_pidx; + unsigned i; + + pkey &= 0x7fff; /* remove limited/full membership bit */ + + for (i = 0; i < ARRAY_SIZE(dd->rcd[ctxt]->pkeys); ++i) + if ((dd->rcd[ctxt]->pkeys[i] & 0x7fff) == pkey) + return i; + + /* + * Should not get here, this means hardware failed to validate pkeys. + * Punt and return index 0. + */ + return 0; +} + +/** + * qib_ud_rcv - receive an incoming UD packet + * @ibp: the port the packet came in on + * @hdr: the packet header + * @has_grh: true if the packet has a GRH + * @data: the packet data + * @tlen: the packet length + * @qp: the QP the packet came on + * + * This is called from qib_qp_rcv() to process an incoming UD packet + * for the given QP. + * Called at interrupt level. + */ +void qib_ud_rcv(struct qib_ibport *ibp, struct ib_header *hdr, + int has_grh, void *data, u32 tlen, struct rvt_qp *qp) +{ + struct ib_other_headers *ohdr; + int opcode; + u32 hdrsize; + u32 pad; + struct ib_wc wc; + u32 qkey; + u32 src_qp; + u16 dlid; + + /* Check for GRH */ + if (!has_grh) { + ohdr = &hdr->u.oth; + hdrsize = 8 + 12 + 8; /* LRH + BTH + DETH */ + } else { + ohdr = &hdr->u.l.oth; + hdrsize = 8 + 40 + 12 + 8; /* LRH + GRH + BTH + DETH */ + } + qkey = be32_to_cpu(ohdr->u.ud.deth[0]); + src_qp = be32_to_cpu(ohdr->u.ud.deth[1]) & RVT_QPN_MASK; + + /* + * Get the number of bytes the message was padded by + * and drop incomplete packets. + */ + pad = (be32_to_cpu(ohdr->bth[0]) >> 20) & 3; + if (unlikely(tlen < (hdrsize + pad + 4))) + goto drop; + + tlen -= hdrsize + pad + 4; + + /* + * Check that the permissive LID is only used on QP0 + * and the QKEY matches (see 9.6.1.4.1 and 9.6.1.5.1). + */ + if (qp->ibqp.qp_num) { + if (unlikely(hdr->lrh[1] == IB_LID_PERMISSIVE || + hdr->lrh[3] == IB_LID_PERMISSIVE)) + goto drop; + if (qp->ibqp.qp_num > 1) { + u16 pkey1, pkey2; + + pkey1 = be32_to_cpu(ohdr->bth[0]); + pkey2 = qib_get_pkey(ibp, qp->s_pkey_index); + if (unlikely(!qib_pkey_ok(pkey1, pkey2))) { + qib_bad_pkey(ibp, + pkey1, + (be16_to_cpu(hdr->lrh[0]) >> 4) & + 0xF, + src_qp, qp->ibqp.qp_num, + hdr->lrh[3], hdr->lrh[1]); + return; + } + } + if (unlikely(qkey != qp->qkey)) + return; + + /* Drop invalid MAD packets (see 13.5.3.1). */ + if (unlikely(qp->ibqp.qp_num == 1 && + (tlen != 256 || + (be16_to_cpu(hdr->lrh[0]) >> 12) == 15))) + goto drop; + } else { + struct ib_smp *smp; + + /* Drop invalid MAD packets (see 13.5.3.1). */ + if (tlen != 256 || (be16_to_cpu(hdr->lrh[0]) >> 12) != 15) + goto drop; + smp = (struct ib_smp *) data; + if ((hdr->lrh[1] == IB_LID_PERMISSIVE || + hdr->lrh[3] == IB_LID_PERMISSIVE) && + smp->mgmt_class != IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) + goto drop; + } + + /* + * The opcode is in the low byte when its in network order + * (top byte when in host order). + */ + opcode = be32_to_cpu(ohdr->bth[0]) >> 24; + if (qp->ibqp.qp_num > 1 && + opcode == IB_OPCODE_UD_SEND_ONLY_WITH_IMMEDIATE) { + wc.ex.imm_data = ohdr->u.ud.imm_data; + wc.wc_flags = IB_WC_WITH_IMM; + } else if (opcode == IB_OPCODE_UD_SEND_ONLY) { + wc.ex.imm_data = 0; + wc.wc_flags = 0; + } else + goto drop; + + /* + * A GRH is expected to precede the data even if not + * present on the wire. + */ + wc.byte_len = tlen + sizeof(struct ib_grh); + + /* + * Get the next work request entry to find where to put the data. + */ + if (qp->r_flags & RVT_R_REUSE_SGE) + qp->r_flags &= ~RVT_R_REUSE_SGE; + else { + int ret; + + ret = rvt_get_rwqe(qp, false); + if (ret < 0) { + rvt_rc_error(qp, IB_WC_LOC_QP_OP_ERR); + return; + } + if (!ret) { + if (qp->ibqp.qp_num == 0) + ibp->rvp.n_vl15_dropped++; + return; + } + } + /* Silently drop packets which are too big. */ + if (unlikely(wc.byte_len > qp->r_len)) { + qp->r_flags |= RVT_R_REUSE_SGE; + goto drop; + } + if (has_grh) { + rvt_copy_sge(qp, &qp->r_sge, &hdr->u.l.grh, + sizeof(struct ib_grh), true, false); + wc.wc_flags |= IB_WC_GRH; + } else + rvt_skip_sge(&qp->r_sge, sizeof(struct ib_grh), true); + rvt_copy_sge(qp, &qp->r_sge, data, wc.byte_len - sizeof(struct ib_grh), + true, false); + rvt_put_ss(&qp->r_sge); + if (!test_and_clear_bit(RVT_R_WRID_VALID, &qp->r_aflags)) + return; + wc.wr_id = qp->r_wr_id; + wc.status = IB_WC_SUCCESS; + wc.opcode = IB_WC_RECV; + wc.vendor_err = 0; + wc.qp = &qp->ibqp; + wc.src_qp = src_qp; + wc.pkey_index = qp->ibqp.qp_type == IB_QPT_GSI ? + qib_lookup_pkey(ibp, be32_to_cpu(ohdr->bth[0])) : 0; + wc.slid = be16_to_cpu(hdr->lrh[3]); + wc.sl = (be16_to_cpu(hdr->lrh[0]) >> 4) & 0xF; + dlid = be16_to_cpu(hdr->lrh[1]); + /* + * Save the LMC lower bits if the destination LID is a unicast LID. + */ + wc.dlid_path_bits = dlid >= be16_to_cpu(IB_MULTICAST_LID_BASE) ? 0 : + dlid & ((1 << ppd_from_ibp(ibp)->lmc) - 1); + wc.port_num = qp->port_num; + /* Signal completion event if the solicited bit is set. */ + rvt_recv_cq(qp, &wc, ib_bth_is_solicited(ohdr)); + return; + +drop: + ibp->rvp.n_pkt_drops++; +} diff --git a/drivers/infiniband/hw/qib/qib_user_pages.c b/drivers/infiniband/hw/qib/qib_user_pages.c new file mode 100644 index 000000000..f4b5f0505 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_user_pages.c @@ -0,0 +1,137 @@ +/* + * Copyright (c) 2006, 2007, 2008, 2009 QLogic Corporation. All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/mm.h> +#include <linux/sched/signal.h> +#include <linux/device.h> + +#include "qib.h" + +static void __qib_release_user_pages(struct page **p, size_t num_pages, + int dirty) +{ + unpin_user_pages_dirty_lock(p, num_pages, dirty); +} + +/* + * qib_map_page - a safety wrapper around pci_map_page() + * + * A dma_addr of all 0's is interpreted by the chip as "disabled". + * Unfortunately, it can also be a valid dma_addr returned on some + * architectures. + * + * The powerpc iommu assigns dma_addrs in ascending order, so we don't + * have to bother with retries or mapping a dummy page to insure we + * don't just get the same mapping again. + * + * I'm sure we won't be so lucky with other iommu's, so FIXME. + */ +int qib_map_page(struct pci_dev *hwdev, struct page *page, dma_addr_t *daddr) +{ + dma_addr_t phys; + + phys = dma_map_page(&hwdev->dev, page, 0, PAGE_SIZE, DMA_FROM_DEVICE); + if (dma_mapping_error(&hwdev->dev, phys)) + return -ENOMEM; + + if (!phys) { + dma_unmap_page(&hwdev->dev, phys, PAGE_SIZE, DMA_FROM_DEVICE); + phys = dma_map_page(&hwdev->dev, page, 0, PAGE_SIZE, + DMA_FROM_DEVICE); + if (dma_mapping_error(&hwdev->dev, phys)) + return -ENOMEM; + /* + * FIXME: If we get 0 again, we should keep this page, + * map another, then free the 0 page. + */ + } + *daddr = phys; + return 0; +} + +/** + * qib_get_user_pages - lock user pages into memory + * @start_page: the start page + * @num_pages: the number of pages + * @p: the output page structures + * + * This function takes a given start page (page aligned user virtual + * address) and pins it and the following specified number of pages. For + * now, num_pages is always 1, but that will probably change at some point + * (because caller is doing expected sends on a single virtually contiguous + * buffer, so we can do all pages at once). + */ +int qib_get_user_pages(unsigned long start_page, size_t num_pages, + struct page **p) +{ + unsigned long locked, lock_limit; + size_t got; + int ret; + + lock_limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT; + locked = atomic64_add_return(num_pages, ¤t->mm->pinned_vm); + + if (locked > lock_limit && !capable(CAP_IPC_LOCK)) { + ret = -ENOMEM; + goto bail; + } + + mmap_read_lock(current->mm); + for (got = 0; got < num_pages; got += ret) { + ret = pin_user_pages(start_page + got * PAGE_SIZE, + num_pages - got, + FOLL_LONGTERM | FOLL_WRITE | FOLL_FORCE, + p + got, NULL); + if (ret < 0) { + mmap_read_unlock(current->mm); + goto bail_release; + } + } + mmap_read_unlock(current->mm); + + return 0; +bail_release: + __qib_release_user_pages(p, got, 0); +bail: + atomic64_sub(num_pages, ¤t->mm->pinned_vm); + return ret; +} + +void qib_release_user_pages(struct page **p, size_t num_pages) +{ + __qib_release_user_pages(p, num_pages, 1); + + /* during close after signal, mm can be NULL */ + if (current->mm) + atomic64_sub(num_pages, ¤t->mm->pinned_vm); +} diff --git a/drivers/infiniband/hw/qib/qib_user_sdma.c b/drivers/infiniband/hw/qib/qib_user_sdma.c new file mode 100644 index 000000000..bf2f30d67 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_user_sdma.c @@ -0,0 +1,1475 @@ +/* + * Copyright (c) 2007, 2008, 2009 QLogic Corporation. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include <linux/mm.h> +#include <linux/types.h> +#include <linux/device.h> +#include <linux/dmapool.h> +#include <linux/slab.h> +#include <linux/list.h> +#include <linux/highmem.h> +#include <linux/io.h> +#include <linux/uio.h> +#include <linux/rbtree.h> +#include <linux/spinlock.h> +#include <linux/delay.h> + +#include "qib.h" +#include "qib_user_sdma.h" + +/* minimum size of header */ +#define QIB_USER_SDMA_MIN_HEADER_LENGTH 64 +/* expected size of headers (for dma_pool) */ +#define QIB_USER_SDMA_EXP_HEADER_LENGTH 64 +/* attempt to drain the queue for 5secs */ +#define QIB_USER_SDMA_DRAIN_TIMEOUT 250 + +/* + * track how many times a process open this driver. + */ +static struct rb_root qib_user_sdma_rb_root = RB_ROOT; + +struct qib_user_sdma_rb_node { + struct rb_node node; + int refcount; + pid_t pid; +}; + +struct qib_user_sdma_pkt { + struct list_head list; /* list element */ + + u8 tiddma; /* if this is NEW tid-sdma */ + u8 largepkt; /* this is large pkt from kmalloc */ + u16 frag_size; /* frag size used by PSM */ + u16 index; /* last header index or push index */ + u16 naddr; /* dimension of addr (1..3) ... */ + u16 addrlimit; /* addr array size */ + u16 tidsmidx; /* current tidsm index */ + u16 tidsmcount; /* tidsm array item count */ + u16 payload_size; /* payload size so far for header */ + u32 bytes_togo; /* bytes for processing */ + u32 counter; /* sdma pkts queued counter for this entry */ + struct qib_tid_session_member *tidsm; /* tid session member array */ + struct qib_user_sdma_queue *pq; /* which pq this pkt belongs to */ + u64 added; /* global descq number of entries */ + + struct { + u16 offset; /* offset for kvaddr, addr */ + u16 length; /* length in page */ + u16 first_desc; /* first desc */ + u16 last_desc; /* last desc */ + u16 put_page; /* should we put_page? */ + u16 dma_mapped; /* is page dma_mapped? */ + u16 dma_length; /* for dma_unmap_page() */ + u16 padding; + struct page *page; /* may be NULL (coherent mem) */ + void *kvaddr; /* FIXME: only for pio hack */ + dma_addr_t addr; + } addr[4]; /* max pages, any more and we coalesce */ +}; + +struct qib_user_sdma_queue { + /* + * pkts sent to dma engine are queued on this + * list head. the type of the elements of this + * list are struct qib_user_sdma_pkt... + */ + struct list_head sent; + + /* + * Because above list will be accessed by both process and + * signal handler, we need a spinlock for it. + */ + spinlock_t sent_lock ____cacheline_aligned_in_smp; + + /* headers with expected length are allocated from here... */ + char header_cache_name[64]; + struct dma_pool *header_cache; + + /* packets are allocated from the slab cache... */ + char pkt_slab_name[64]; + struct kmem_cache *pkt_slab; + + /* as packets go on the queued queue, they are counted... */ + u32 counter; + u32 sent_counter; + /* pending packets, not sending yet */ + u32 num_pending; + /* sending packets, not complete yet */ + u32 num_sending; + /* global descq number of entry of last sending packet */ + u64 added; + + /* dma page table */ + struct rb_root dma_pages_root; + + struct qib_user_sdma_rb_node *sdma_rb_node; + + /* protect everything above... */ + struct mutex lock; +}; + +static struct qib_user_sdma_rb_node * +qib_user_sdma_rb_search(struct rb_root *root, pid_t pid) +{ + struct qib_user_sdma_rb_node *sdma_rb_node; + struct rb_node *node = root->rb_node; + + while (node) { + sdma_rb_node = rb_entry(node, struct qib_user_sdma_rb_node, + node); + if (pid < sdma_rb_node->pid) + node = node->rb_left; + else if (pid > sdma_rb_node->pid) + node = node->rb_right; + else + return sdma_rb_node; + } + return NULL; +} + +static int +qib_user_sdma_rb_insert(struct rb_root *root, struct qib_user_sdma_rb_node *new) +{ + struct rb_node **node = &(root->rb_node); + struct rb_node *parent = NULL; + struct qib_user_sdma_rb_node *got; + + while (*node) { + got = rb_entry(*node, struct qib_user_sdma_rb_node, node); + parent = *node; + if (new->pid < got->pid) + node = &((*node)->rb_left); + else if (new->pid > got->pid) + node = &((*node)->rb_right); + else + return 0; + } + + rb_link_node(&new->node, parent, node); + rb_insert_color(&new->node, root); + return 1; +} + +struct qib_user_sdma_queue * +qib_user_sdma_queue_create(struct device *dev, int unit, int ctxt, int sctxt) +{ + struct qib_user_sdma_queue *pq = + kmalloc(sizeof(struct qib_user_sdma_queue), GFP_KERNEL); + struct qib_user_sdma_rb_node *sdma_rb_node; + + if (!pq) + goto done; + + pq->counter = 0; + pq->sent_counter = 0; + pq->num_pending = 0; + pq->num_sending = 0; + pq->added = 0; + pq->sdma_rb_node = NULL; + + INIT_LIST_HEAD(&pq->sent); + spin_lock_init(&pq->sent_lock); + mutex_init(&pq->lock); + + snprintf(pq->pkt_slab_name, sizeof(pq->pkt_slab_name), + "qib-user-sdma-pkts-%u-%02u.%02u", unit, ctxt, sctxt); + pq->pkt_slab = kmem_cache_create(pq->pkt_slab_name, + sizeof(struct qib_user_sdma_pkt), + 0, 0, NULL); + + if (!pq->pkt_slab) + goto err_kfree; + + snprintf(pq->header_cache_name, sizeof(pq->header_cache_name), + "qib-user-sdma-headers-%u-%02u.%02u", unit, ctxt, sctxt); + pq->header_cache = dma_pool_create(pq->header_cache_name, + dev, + QIB_USER_SDMA_EXP_HEADER_LENGTH, + 4, 0); + if (!pq->header_cache) + goto err_slab; + + pq->dma_pages_root = RB_ROOT; + + sdma_rb_node = qib_user_sdma_rb_search(&qib_user_sdma_rb_root, + current->pid); + if (sdma_rb_node) { + sdma_rb_node->refcount++; + } else { + sdma_rb_node = kmalloc(sizeof( + struct qib_user_sdma_rb_node), GFP_KERNEL); + if (!sdma_rb_node) + goto err_rb; + + sdma_rb_node->refcount = 1; + sdma_rb_node->pid = current->pid; + + qib_user_sdma_rb_insert(&qib_user_sdma_rb_root, sdma_rb_node); + } + pq->sdma_rb_node = sdma_rb_node; + + goto done; + +err_rb: + dma_pool_destroy(pq->header_cache); +err_slab: + kmem_cache_destroy(pq->pkt_slab); +err_kfree: + kfree(pq); + pq = NULL; + +done: + return pq; +} + +static void qib_user_sdma_init_frag(struct qib_user_sdma_pkt *pkt, + int i, u16 offset, u16 len, + u16 first_desc, u16 last_desc, + u16 put_page, u16 dma_mapped, + struct page *page, void *kvaddr, + dma_addr_t dma_addr, u16 dma_length) +{ + pkt->addr[i].offset = offset; + pkt->addr[i].length = len; + pkt->addr[i].first_desc = first_desc; + pkt->addr[i].last_desc = last_desc; + pkt->addr[i].put_page = put_page; + pkt->addr[i].dma_mapped = dma_mapped; + pkt->addr[i].page = page; + pkt->addr[i].kvaddr = kvaddr; + pkt->addr[i].addr = dma_addr; + pkt->addr[i].dma_length = dma_length; +} + +static void *qib_user_sdma_alloc_header(struct qib_user_sdma_queue *pq, + size_t len, dma_addr_t *dma_addr) +{ + void *hdr; + + if (len == QIB_USER_SDMA_EXP_HEADER_LENGTH) + hdr = dma_pool_alloc(pq->header_cache, GFP_KERNEL, + dma_addr); + else + hdr = NULL; + + if (!hdr) { + hdr = kmalloc(len, GFP_KERNEL); + if (!hdr) + return NULL; + + *dma_addr = 0; + } + + return hdr; +} + +static int qib_user_sdma_page_to_frags(const struct qib_devdata *dd, + struct qib_user_sdma_queue *pq, + struct qib_user_sdma_pkt *pkt, + struct page *page, u16 put, + u16 offset, u16 len, void *kvaddr) +{ + __le16 *pbc16; + void *pbcvaddr; + struct qib_message_header *hdr; + u16 newlen, pbclen, lastdesc, dma_mapped; + u32 vcto; + union qib_seqnum seqnum; + dma_addr_t pbcdaddr; + dma_addr_t dma_addr = + dma_map_page(&dd->pcidev->dev, + page, offset, len, DMA_TO_DEVICE); + int ret = 0; + + if (dma_mapping_error(&dd->pcidev->dev, dma_addr)) { + /* + * dma mapping error, pkt has not managed + * this page yet, return the page here so + * the caller can ignore this page. + */ + if (put) { + unpin_user_page(page); + } else { + /* coalesce case */ + kunmap(page); + __free_page(page); + } + ret = -ENOMEM; + goto done; + } + offset = 0; + dma_mapped = 1; + + +next_fragment: + + /* + * In tid-sdma, the transfer length is restricted by + * receiver side current tid page length. + */ + if (pkt->tiddma && len > pkt->tidsm[pkt->tidsmidx].length) + newlen = pkt->tidsm[pkt->tidsmidx].length; + else + newlen = len; + + /* + * Then the transfer length is restricted by MTU. + * the last descriptor flag is determined by: + * 1. the current packet is at frag size length. + * 2. the current tid page is done if tid-sdma. + * 3. there is no more byte togo if sdma. + */ + lastdesc = 0; + if ((pkt->payload_size + newlen) >= pkt->frag_size) { + newlen = pkt->frag_size - pkt->payload_size; + lastdesc = 1; + } else if (pkt->tiddma) { + if (newlen == pkt->tidsm[pkt->tidsmidx].length) + lastdesc = 1; + } else { + if (newlen == pkt->bytes_togo) + lastdesc = 1; + } + + /* fill the next fragment in this page */ + qib_user_sdma_init_frag(pkt, pkt->naddr, /* index */ + offset, newlen, /* offset, len */ + 0, lastdesc, /* first last desc */ + put, dma_mapped, /* put page, dma mapped */ + page, kvaddr, /* struct page, virt addr */ + dma_addr, len); /* dma addr, dma length */ + pkt->bytes_togo -= newlen; + pkt->payload_size += newlen; + pkt->naddr++; + if (pkt->naddr == pkt->addrlimit) { + ret = -EFAULT; + goto done; + } + + /* If there is no more byte togo. (lastdesc==1) */ + if (pkt->bytes_togo == 0) { + /* The packet is done, header is not dma mapped yet. + * it should be from kmalloc */ + if (!pkt->addr[pkt->index].addr) { + pkt->addr[pkt->index].addr = + dma_map_single(&dd->pcidev->dev, + pkt->addr[pkt->index].kvaddr, + pkt->addr[pkt->index].dma_length, + DMA_TO_DEVICE); + if (dma_mapping_error(&dd->pcidev->dev, + pkt->addr[pkt->index].addr)) { + ret = -ENOMEM; + goto done; + } + pkt->addr[pkt->index].dma_mapped = 1; + } + + goto done; + } + + /* If tid-sdma, advance tid info. */ + if (pkt->tiddma) { + pkt->tidsm[pkt->tidsmidx].length -= newlen; + if (pkt->tidsm[pkt->tidsmidx].length) { + pkt->tidsm[pkt->tidsmidx].offset += newlen; + } else { + pkt->tidsmidx++; + if (pkt->tidsmidx == pkt->tidsmcount) { + ret = -EFAULT; + goto done; + } + } + } + + /* + * If this is NOT the last descriptor. (newlen==len) + * the current packet is not done yet, but the current + * send side page is done. + */ + if (lastdesc == 0) + goto done; + + /* + * If running this driver under PSM with message size + * fitting into one transfer unit, it is not possible + * to pass this line. otherwise, it is a buggggg. + */ + + /* + * Since the current packet is done, and there are more + * bytes togo, we need to create a new sdma header, copying + * from previous sdma header and modify both. + */ + pbclen = pkt->addr[pkt->index].length; + pbcvaddr = qib_user_sdma_alloc_header(pq, pbclen, &pbcdaddr); + if (!pbcvaddr) { + ret = -ENOMEM; + goto done; + } + /* Copy the previous sdma header to new sdma header */ + pbc16 = (__le16 *)pkt->addr[pkt->index].kvaddr; + memcpy(pbcvaddr, pbc16, pbclen); + + /* Modify the previous sdma header */ + hdr = (struct qib_message_header *)&pbc16[4]; + + /* New pbc length */ + pbc16[0] = cpu_to_le16(le16_to_cpu(pbc16[0])-(pkt->bytes_togo>>2)); + + /* New packet length */ + hdr->lrh[2] = cpu_to_be16(le16_to_cpu(pbc16[0])); + + if (pkt->tiddma) { + /* turn on the header suppression */ + hdr->iph.pkt_flags = + cpu_to_le16(le16_to_cpu(hdr->iph.pkt_flags)|0x2); + /* turn off ACK_REQ: 0x04 and EXPECTED_DONE: 0x20 */ + hdr->flags &= ~(0x04|0x20); + } else { + /* turn off extra bytes: 20-21 bits */ + hdr->bth[0] = cpu_to_be32(be32_to_cpu(hdr->bth[0])&0xFFCFFFFF); + /* turn off ACK_REQ: 0x04 */ + hdr->flags &= ~(0x04); + } + + /* New kdeth checksum */ + vcto = le32_to_cpu(hdr->iph.ver_ctxt_tid_offset); + hdr->iph.chksum = cpu_to_le16(QIB_LRH_BTH + + be16_to_cpu(hdr->lrh[2]) - + ((vcto>>16)&0xFFFF) - (vcto&0xFFFF) - + le16_to_cpu(hdr->iph.pkt_flags)); + + /* The packet is done, header is not dma mapped yet. + * it should be from kmalloc */ + if (!pkt->addr[pkt->index].addr) { + pkt->addr[pkt->index].addr = + dma_map_single(&dd->pcidev->dev, + pkt->addr[pkt->index].kvaddr, + pkt->addr[pkt->index].dma_length, + DMA_TO_DEVICE); + if (dma_mapping_error(&dd->pcidev->dev, + pkt->addr[pkt->index].addr)) { + ret = -ENOMEM; + goto done; + } + pkt->addr[pkt->index].dma_mapped = 1; + } + + /* Modify the new sdma header */ + pbc16 = (__le16 *)pbcvaddr; + hdr = (struct qib_message_header *)&pbc16[4]; + + /* New pbc length */ + pbc16[0] = cpu_to_le16(le16_to_cpu(pbc16[0])-(pkt->payload_size>>2)); + + /* New packet length */ + hdr->lrh[2] = cpu_to_be16(le16_to_cpu(pbc16[0])); + + if (pkt->tiddma) { + /* Set new tid and offset for new sdma header */ + hdr->iph.ver_ctxt_tid_offset = cpu_to_le32( + (le32_to_cpu(hdr->iph.ver_ctxt_tid_offset)&0xFF000000) + + (pkt->tidsm[pkt->tidsmidx].tid<<QLOGIC_IB_I_TID_SHIFT) + + (pkt->tidsm[pkt->tidsmidx].offset>>2)); + } else { + /* Middle protocol new packet offset */ + hdr->uwords[2] += pkt->payload_size; + } + + /* New kdeth checksum */ + vcto = le32_to_cpu(hdr->iph.ver_ctxt_tid_offset); + hdr->iph.chksum = cpu_to_le16(QIB_LRH_BTH + + be16_to_cpu(hdr->lrh[2]) - + ((vcto>>16)&0xFFFF) - (vcto&0xFFFF) - + le16_to_cpu(hdr->iph.pkt_flags)); + + /* Next sequence number in new sdma header */ + seqnum.val = be32_to_cpu(hdr->bth[2]); + if (pkt->tiddma) + seqnum.seq++; + else + seqnum.pkt++; + hdr->bth[2] = cpu_to_be32(seqnum.val); + + /* Init new sdma header. */ + qib_user_sdma_init_frag(pkt, pkt->naddr, /* index */ + 0, pbclen, /* offset, len */ + 1, 0, /* first last desc */ + 0, 0, /* put page, dma mapped */ + NULL, pbcvaddr, /* struct page, virt addr */ + pbcdaddr, pbclen); /* dma addr, dma length */ + pkt->index = pkt->naddr; + pkt->payload_size = 0; + pkt->naddr++; + if (pkt->naddr == pkt->addrlimit) { + ret = -EFAULT; + goto done; + } + + /* Prepare for next fragment in this page */ + if (newlen != len) { + if (dma_mapped) { + put = 0; + dma_mapped = 0; + page = NULL; + kvaddr = NULL; + } + len -= newlen; + offset += newlen; + + goto next_fragment; + } + +done: + return ret; +} + +/* we've too many pages in the iovec, coalesce to a single page */ +static int qib_user_sdma_coalesce(const struct qib_devdata *dd, + struct qib_user_sdma_queue *pq, + struct qib_user_sdma_pkt *pkt, + const struct iovec *iov, + unsigned long niov) +{ + int ret = 0; + struct page *page = alloc_page(GFP_KERNEL); + void *mpage_save; + char *mpage; + int i; + int len = 0; + + if (!page) { + ret = -ENOMEM; + goto done; + } + + mpage = kmap(page); + mpage_save = mpage; + for (i = 0; i < niov; i++) { + int cfur; + + cfur = copy_from_user(mpage, + iov[i].iov_base, iov[i].iov_len); + if (cfur) { + ret = -EFAULT; + goto free_unmap; + } + + mpage += iov[i].iov_len; + len += iov[i].iov_len; + } + + ret = qib_user_sdma_page_to_frags(dd, pq, pkt, + page, 0, 0, len, mpage_save); + goto done; + +free_unmap: + kunmap(page); + __free_page(page); +done: + return ret; +} + +/* + * How many pages in this iovec element? + */ +static size_t qib_user_sdma_num_pages(const struct iovec *iov) +{ + const unsigned long addr = (unsigned long) iov->iov_base; + const unsigned long len = iov->iov_len; + const unsigned long spage = addr & PAGE_MASK; + const unsigned long epage = (addr + len - 1) & PAGE_MASK; + + return 1 + ((epage - spage) >> PAGE_SHIFT); +} + +static void qib_user_sdma_free_pkt_frag(struct device *dev, + struct qib_user_sdma_queue *pq, + struct qib_user_sdma_pkt *pkt, + int frag) +{ + const int i = frag; + + if (pkt->addr[i].page) { + /* only user data has page */ + if (pkt->addr[i].dma_mapped) + dma_unmap_page(dev, + pkt->addr[i].addr, + pkt->addr[i].dma_length, + DMA_TO_DEVICE); + + if (pkt->addr[i].kvaddr) + kunmap(pkt->addr[i].page); + + if (pkt->addr[i].put_page) + unpin_user_page(pkt->addr[i].page); + else + __free_page(pkt->addr[i].page); + } else if (pkt->addr[i].kvaddr) { + /* for headers */ + if (pkt->addr[i].dma_mapped) { + /* from kmalloc & dma mapped */ + dma_unmap_single(dev, + pkt->addr[i].addr, + pkt->addr[i].dma_length, + DMA_TO_DEVICE); + kfree(pkt->addr[i].kvaddr); + } else if (pkt->addr[i].addr) { + /* free coherent mem from cache... */ + dma_pool_free(pq->header_cache, + pkt->addr[i].kvaddr, pkt->addr[i].addr); + } else { + /* from kmalloc but not dma mapped */ + kfree(pkt->addr[i].kvaddr); + } + } +} + +/* return number of pages pinned... */ +static int qib_user_sdma_pin_pages(const struct qib_devdata *dd, + struct qib_user_sdma_queue *pq, + struct qib_user_sdma_pkt *pkt, + unsigned long addr, int tlen, size_t npages) +{ + struct page *pages[8]; + int i, j; + int ret = 0; + + while (npages) { + if (npages > 8) + j = 8; + else + j = npages; + + ret = pin_user_pages_fast(addr, j, FOLL_LONGTERM, pages); + if (ret != j) { + i = 0; + j = ret; + ret = -ENOMEM; + goto free_pages; + } + + for (i = 0; i < j; i++) { + /* map the pages... */ + unsigned long fofs = addr & ~PAGE_MASK; + int flen = ((fofs + tlen) > PAGE_SIZE) ? + (PAGE_SIZE - fofs) : tlen; + + ret = qib_user_sdma_page_to_frags(dd, pq, pkt, + pages[i], 1, fofs, flen, NULL); + if (ret < 0) { + /* current page has beed taken + * care of inside above call. + */ + i++; + goto free_pages; + } + + addr += flen; + tlen -= flen; + } + + npages -= j; + } + + goto done; + + /* if error, return all pages not managed by pkt */ +free_pages: + while (i < j) + unpin_user_page(pages[i++]); + +done: + return ret; +} + +static int qib_user_sdma_pin_pkt(const struct qib_devdata *dd, + struct qib_user_sdma_queue *pq, + struct qib_user_sdma_pkt *pkt, + const struct iovec *iov, + unsigned long niov) +{ + int ret = 0; + unsigned long idx; + + for (idx = 0; idx < niov; idx++) { + const size_t npages = qib_user_sdma_num_pages(iov + idx); + const unsigned long addr = (unsigned long) iov[idx].iov_base; + + ret = qib_user_sdma_pin_pages(dd, pq, pkt, addr, + iov[idx].iov_len, npages); + if (ret < 0) + goto free_pkt; + } + + goto done; + +free_pkt: + /* we need to ignore the first entry here */ + for (idx = 1; idx < pkt->naddr; idx++) + qib_user_sdma_free_pkt_frag(&dd->pcidev->dev, pq, pkt, idx); + + /* need to dma unmap the first entry, this is to restore to + * the original state so that caller can free the memory in + * error condition. Caller does not know if dma mapped or not*/ + if (pkt->addr[0].dma_mapped) { + dma_unmap_single(&dd->pcidev->dev, + pkt->addr[0].addr, + pkt->addr[0].dma_length, + DMA_TO_DEVICE); + pkt->addr[0].addr = 0; + pkt->addr[0].dma_mapped = 0; + } + +done: + return ret; +} + +static int qib_user_sdma_init_payload(const struct qib_devdata *dd, + struct qib_user_sdma_queue *pq, + struct qib_user_sdma_pkt *pkt, + const struct iovec *iov, + unsigned long niov, int npages) +{ + int ret = 0; + + if (pkt->frag_size == pkt->bytes_togo && + npages >= ARRAY_SIZE(pkt->addr)) + ret = qib_user_sdma_coalesce(dd, pq, pkt, iov, niov); + else + ret = qib_user_sdma_pin_pkt(dd, pq, pkt, iov, niov); + + return ret; +} + +/* free a packet list -- return counter value of last packet */ +static void qib_user_sdma_free_pkt_list(struct device *dev, + struct qib_user_sdma_queue *pq, + struct list_head *list) +{ + struct qib_user_sdma_pkt *pkt, *pkt_next; + + list_for_each_entry_safe(pkt, pkt_next, list, list) { + int i; + + for (i = 0; i < pkt->naddr; i++) + qib_user_sdma_free_pkt_frag(dev, pq, pkt, i); + + if (pkt->largepkt) + kfree(pkt); + else + kmem_cache_free(pq->pkt_slab, pkt); + } + INIT_LIST_HEAD(list); +} + +/* + * copy headers, coalesce etc -- pq->lock must be held + * + * we queue all the packets to list, returning the + * number of bytes total. list must be empty initially, + * as, if there is an error we clean it... + */ +static int qib_user_sdma_queue_pkts(const struct qib_devdata *dd, + struct qib_pportdata *ppd, + struct qib_user_sdma_queue *pq, + const struct iovec *iov, + unsigned long niov, + struct list_head *list, + int *maxpkts, int *ndesc) +{ + unsigned long idx = 0; + int ret = 0; + int npkts = 0; + __le32 *pbc; + dma_addr_t dma_addr; + struct qib_user_sdma_pkt *pkt = NULL; + size_t len; + size_t nw; + u32 counter = pq->counter; + u16 frag_size; + + while (idx < niov && npkts < *maxpkts) { + const unsigned long addr = (unsigned long) iov[idx].iov_base; + const unsigned long idx_save = idx; + unsigned pktnw; + unsigned pktnwc; + int nfrags = 0; + size_t npages = 0; + size_t bytes_togo = 0; + int tiddma = 0; + int cfur; + + len = iov[idx].iov_len; + nw = len >> 2; + + if (len < QIB_USER_SDMA_MIN_HEADER_LENGTH || + len > PAGE_SIZE || len & 3 || addr & 3) { + ret = -EINVAL; + goto free_list; + } + + pbc = qib_user_sdma_alloc_header(pq, len, &dma_addr); + if (!pbc) { + ret = -ENOMEM; + goto free_list; + } + + cfur = copy_from_user(pbc, iov[idx].iov_base, len); + if (cfur) { + ret = -EFAULT; + goto free_pbc; + } + + /* + * This assignment is a bit strange. it's because the + * the pbc counts the number of 32 bit words in the full + * packet _except_ the first word of the pbc itself... + */ + pktnwc = nw - 1; + + /* + * pktnw computation yields the number of 32 bit words + * that the caller has indicated in the PBC. note that + * this is one less than the total number of words that + * goes to the send DMA engine as the first 32 bit word + * of the PBC itself is not counted. Armed with this count, + * we can verify that the packet is consistent with the + * iovec lengths. + */ + pktnw = le32_to_cpu(*pbc) & 0xFFFF; + if (pktnw < pktnwc) { + ret = -EINVAL; + goto free_pbc; + } + + idx++; + while (pktnwc < pktnw && idx < niov) { + const size_t slen = iov[idx].iov_len; + const unsigned long faddr = + (unsigned long) iov[idx].iov_base; + + if (slen & 3 || faddr & 3 || !slen) { + ret = -EINVAL; + goto free_pbc; + } + + npages += qib_user_sdma_num_pages(&iov[idx]); + + if (check_add_overflow(bytes_togo, slen, &bytes_togo) || + bytes_togo > type_max(typeof(pkt->bytes_togo))) { + ret = -EINVAL; + goto free_pbc; + } + pktnwc += slen >> 2; + idx++; + nfrags++; + } + + if (pktnwc != pktnw) { + ret = -EINVAL; + goto free_pbc; + } + + frag_size = ((le32_to_cpu(*pbc))>>16) & 0xFFFF; + if (((frag_size ? frag_size : bytes_togo) + len) > + ppd->ibmaxlen) { + ret = -EINVAL; + goto free_pbc; + } + + if (frag_size) { + size_t tidsmsize, n, pktsize, sz, addrlimit; + + n = npages*((2*PAGE_SIZE/frag_size)+1); + pktsize = struct_size(pkt, addr, n); + + /* + * Determine if this is tid-sdma or just sdma. + */ + tiddma = (((le32_to_cpu(pbc[7])>> + QLOGIC_IB_I_TID_SHIFT)& + QLOGIC_IB_I_TID_MASK) != + QLOGIC_IB_I_TID_MASK); + + if (tiddma) + tidsmsize = iov[idx].iov_len; + else + tidsmsize = 0; + + if (check_add_overflow(pktsize, tidsmsize, &sz)) { + ret = -EINVAL; + goto free_pbc; + } + pkt = kmalloc(sz, GFP_KERNEL); + if (!pkt) { + ret = -ENOMEM; + goto free_pbc; + } + pkt->largepkt = 1; + pkt->frag_size = frag_size; + if (check_add_overflow(n, ARRAY_SIZE(pkt->addr), + &addrlimit) || + addrlimit > type_max(typeof(pkt->addrlimit))) { + ret = -EINVAL; + goto free_pkt; + } + pkt->addrlimit = addrlimit; + + if (tiddma) { + char *tidsm = (char *)pkt + pktsize; + + cfur = copy_from_user(tidsm, + iov[idx].iov_base, tidsmsize); + if (cfur) { + ret = -EFAULT; + goto free_pkt; + } + pkt->tidsm = + (struct qib_tid_session_member *)tidsm; + pkt->tidsmcount = tidsmsize/ + sizeof(struct qib_tid_session_member); + pkt->tidsmidx = 0; + idx++; + } + + /* + * pbc 'fill1' field is borrowed to pass frag size, + * we need to clear it after picking frag size, the + * hardware requires this field to be zero. + */ + *pbc = cpu_to_le32(le32_to_cpu(*pbc) & 0x0000FFFF); + } else { + pkt = kmem_cache_alloc(pq->pkt_slab, GFP_KERNEL); + if (!pkt) { + ret = -ENOMEM; + goto free_pbc; + } + pkt->largepkt = 0; + pkt->frag_size = bytes_togo; + pkt->addrlimit = ARRAY_SIZE(pkt->addr); + } + pkt->bytes_togo = bytes_togo; + pkt->payload_size = 0; + pkt->counter = counter; + pkt->tiddma = tiddma; + + /* setup the first header */ + qib_user_sdma_init_frag(pkt, 0, /* index */ + 0, len, /* offset, len */ + 1, 0, /* first last desc */ + 0, 0, /* put page, dma mapped */ + NULL, pbc, /* struct page, virt addr */ + dma_addr, len); /* dma addr, dma length */ + pkt->index = 0; + pkt->naddr = 1; + + if (nfrags) { + ret = qib_user_sdma_init_payload(dd, pq, pkt, + iov + idx_save + 1, + nfrags, npages); + if (ret < 0) + goto free_pkt; + } else { + /* since there is no payload, mark the + * header as the last desc. */ + pkt->addr[0].last_desc = 1; + + if (dma_addr == 0) { + /* + * the header is not dma mapped yet. + * it should be from kmalloc. + */ + dma_addr = dma_map_single(&dd->pcidev->dev, + pbc, len, DMA_TO_DEVICE); + if (dma_mapping_error(&dd->pcidev->dev, + dma_addr)) { + ret = -ENOMEM; + goto free_pkt; + } + pkt->addr[0].addr = dma_addr; + pkt->addr[0].dma_mapped = 1; + } + } + + counter++; + npkts++; + pkt->pq = pq; + pkt->index = 0; /* reset index for push on hw */ + *ndesc += pkt->naddr; + + list_add_tail(&pkt->list, list); + } + + *maxpkts = npkts; + ret = idx; + goto done; + +free_pkt: + if (pkt->largepkt) + kfree(pkt); + else + kmem_cache_free(pq->pkt_slab, pkt); +free_pbc: + if (dma_addr) + dma_pool_free(pq->header_cache, pbc, dma_addr); + else + kfree(pbc); +free_list: + qib_user_sdma_free_pkt_list(&dd->pcidev->dev, pq, list); +done: + return ret; +} + +static void qib_user_sdma_set_complete_counter(struct qib_user_sdma_queue *pq, + u32 c) +{ + pq->sent_counter = c; +} + +/* try to clean out queue -- needs pq->lock */ +static int qib_user_sdma_queue_clean(struct qib_pportdata *ppd, + struct qib_user_sdma_queue *pq) +{ + struct qib_devdata *dd = ppd->dd; + struct list_head free_list; + struct qib_user_sdma_pkt *pkt; + struct qib_user_sdma_pkt *pkt_prev; + unsigned long flags; + int ret = 0; + + if (!pq->num_sending) + return 0; + + INIT_LIST_HEAD(&free_list); + + /* + * We need this spin lock here because interrupt handler + * might modify this list in qib_user_sdma_send_desc(), also + * we can not get interrupted, otherwise it is a deadlock. + */ + spin_lock_irqsave(&pq->sent_lock, flags); + list_for_each_entry_safe(pkt, pkt_prev, &pq->sent, list) { + s64 descd = ppd->sdma_descq_removed - pkt->added; + + if (descd < 0) + break; + + list_move_tail(&pkt->list, &free_list); + + /* one more packet cleaned */ + ret++; + pq->num_sending--; + } + spin_unlock_irqrestore(&pq->sent_lock, flags); + + if (!list_empty(&free_list)) { + u32 counter; + + pkt = list_entry(free_list.prev, + struct qib_user_sdma_pkt, list); + counter = pkt->counter; + + qib_user_sdma_free_pkt_list(&dd->pcidev->dev, pq, &free_list); + qib_user_sdma_set_complete_counter(pq, counter); + } + + return ret; +} + +void qib_user_sdma_queue_destroy(struct qib_user_sdma_queue *pq) +{ + if (!pq) + return; + + pq->sdma_rb_node->refcount--; + if (pq->sdma_rb_node->refcount == 0) { + rb_erase(&pq->sdma_rb_node->node, &qib_user_sdma_rb_root); + kfree(pq->sdma_rb_node); + } + dma_pool_destroy(pq->header_cache); + kmem_cache_destroy(pq->pkt_slab); + kfree(pq); +} + +/* clean descriptor queue, returns > 0 if some elements cleaned */ +static int qib_user_sdma_hwqueue_clean(struct qib_pportdata *ppd) +{ + int ret; + unsigned long flags; + + spin_lock_irqsave(&ppd->sdma_lock, flags); + ret = qib_sdma_make_progress(ppd); + spin_unlock_irqrestore(&ppd->sdma_lock, flags); + + return ret; +} + +/* we're in close, drain packets so that we can cleanup successfully... */ +void qib_user_sdma_queue_drain(struct qib_pportdata *ppd, + struct qib_user_sdma_queue *pq) +{ + struct qib_devdata *dd = ppd->dd; + unsigned long flags; + int i; + + if (!pq) + return; + + for (i = 0; i < QIB_USER_SDMA_DRAIN_TIMEOUT; i++) { + mutex_lock(&pq->lock); + if (!pq->num_pending && !pq->num_sending) { + mutex_unlock(&pq->lock); + break; + } + qib_user_sdma_hwqueue_clean(ppd); + qib_user_sdma_queue_clean(ppd, pq); + mutex_unlock(&pq->lock); + msleep(20); + } + + if (pq->num_pending || pq->num_sending) { + struct qib_user_sdma_pkt *pkt; + struct qib_user_sdma_pkt *pkt_prev; + struct list_head free_list; + + mutex_lock(&pq->lock); + spin_lock_irqsave(&ppd->sdma_lock, flags); + /* + * Since we hold sdma_lock, it is safe without sent_lock. + */ + if (pq->num_pending) { + list_for_each_entry_safe(pkt, pkt_prev, + &ppd->sdma_userpending, list) { + if (pkt->pq == pq) { + list_move_tail(&pkt->list, &pq->sent); + pq->num_pending--; + pq->num_sending++; + } + } + } + spin_unlock_irqrestore(&ppd->sdma_lock, flags); + + qib_dev_err(dd, "user sdma lists not empty: forcing!\n"); + INIT_LIST_HEAD(&free_list); + list_splice_init(&pq->sent, &free_list); + pq->num_sending = 0; + qib_user_sdma_free_pkt_list(&dd->pcidev->dev, pq, &free_list); + mutex_unlock(&pq->lock); + } +} + +static inline __le64 qib_sdma_make_desc0(u8 gen, + u64 addr, u64 dwlen, u64 dwoffset) +{ + return cpu_to_le64(/* SDmaPhyAddr[31:0] */ + ((addr & 0xfffffffcULL) << 32) | + /* SDmaGeneration[1:0] */ + ((gen & 3ULL) << 30) | + /* SDmaDwordCount[10:0] */ + ((dwlen & 0x7ffULL) << 16) | + /* SDmaBufOffset[12:2] */ + (dwoffset & 0x7ffULL)); +} + +static inline __le64 qib_sdma_make_first_desc0(__le64 descq) +{ + return descq | cpu_to_le64(1ULL << 12); +} + +static inline __le64 qib_sdma_make_last_desc0(__le64 descq) +{ + /* last */ /* dma head */ + return descq | cpu_to_le64(1ULL << 11 | 1ULL << 13); +} + +static inline __le64 qib_sdma_make_desc1(u64 addr) +{ + /* SDmaPhyAddr[47:32] */ + return cpu_to_le64(addr >> 32); +} + +static void qib_user_sdma_send_frag(struct qib_pportdata *ppd, + struct qib_user_sdma_pkt *pkt, int idx, + unsigned ofs, u16 tail, u8 gen) +{ + const u64 addr = (u64) pkt->addr[idx].addr + + (u64) pkt->addr[idx].offset; + const u64 dwlen = (u64) pkt->addr[idx].length / 4; + __le64 *descqp; + __le64 descq0; + + descqp = &ppd->sdma_descq[tail].qw[0]; + + descq0 = qib_sdma_make_desc0(gen, addr, dwlen, ofs); + if (pkt->addr[idx].first_desc) + descq0 = qib_sdma_make_first_desc0(descq0); + if (pkt->addr[idx].last_desc) { + descq0 = qib_sdma_make_last_desc0(descq0); + if (ppd->sdma_intrequest) { + descq0 |= cpu_to_le64(1ULL << 15); + ppd->sdma_intrequest = 0; + } + } + + descqp[0] = descq0; + descqp[1] = qib_sdma_make_desc1(addr); +} + +void qib_user_sdma_send_desc(struct qib_pportdata *ppd, + struct list_head *pktlist) +{ + struct qib_devdata *dd = ppd->dd; + u16 nfree, nsent; + u16 tail, tail_c; + u8 gen, gen_c; + + nfree = qib_sdma_descq_freecnt(ppd); + if (!nfree) + return; + +retry: + nsent = 0; + tail_c = tail = ppd->sdma_descq_tail; + gen_c = gen = ppd->sdma_generation; + while (!list_empty(pktlist)) { + struct qib_user_sdma_pkt *pkt = + list_entry(pktlist->next, struct qib_user_sdma_pkt, + list); + int i, j, c = 0; + unsigned ofs = 0; + u16 dtail = tail; + + for (i = pkt->index; i < pkt->naddr && nfree; i++) { + qib_user_sdma_send_frag(ppd, pkt, i, ofs, tail, gen); + ofs += pkt->addr[i].length >> 2; + + if (++tail == ppd->sdma_descq_cnt) { + tail = 0; + ++gen; + ppd->sdma_intrequest = 1; + } else if (tail == (ppd->sdma_descq_cnt>>1)) { + ppd->sdma_intrequest = 1; + } + nfree--; + if (pkt->addr[i].last_desc == 0) + continue; + + /* + * If the packet is >= 2KB mtu equivalent, we + * have to use the large buffers, and have to + * mark each descriptor as part of a large + * buffer packet. + */ + if (ofs > dd->piosize2kmax_dwords) { + for (j = pkt->index; j <= i; j++) { + ppd->sdma_descq[dtail].qw[0] |= + cpu_to_le64(1ULL << 14); + if (++dtail == ppd->sdma_descq_cnt) + dtail = 0; + } + } + c += i + 1 - pkt->index; + pkt->index = i + 1; /* index for next first */ + tail_c = dtail = tail; + gen_c = gen; + ofs = 0; /* reset for next packet */ + } + + ppd->sdma_descq_added += c; + nsent += c; + if (pkt->index == pkt->naddr) { + pkt->added = ppd->sdma_descq_added; + pkt->pq->added = pkt->added; + pkt->pq->num_pending--; + spin_lock(&pkt->pq->sent_lock); + pkt->pq->num_sending++; + list_move_tail(&pkt->list, &pkt->pq->sent); + spin_unlock(&pkt->pq->sent_lock); + } + if (!nfree || (nsent<<2) > ppd->sdma_descq_cnt) + break; + } + + /* advance the tail on the chip if necessary */ + if (ppd->sdma_descq_tail != tail_c) { + ppd->sdma_generation = gen_c; + dd->f_sdma_update_tail(ppd, tail_c); + } + + if (nfree && !list_empty(pktlist)) + goto retry; +} + +/* pq->lock must be held, get packets on the wire... */ +static int qib_user_sdma_push_pkts(struct qib_pportdata *ppd, + struct qib_user_sdma_queue *pq, + struct list_head *pktlist, int count) +{ + unsigned long flags; + + if (unlikely(!(ppd->lflags & QIBL_LINKACTIVE))) + return -ECOMM; + + /* non-blocking mode */ + if (pq->sdma_rb_node->refcount > 1) { + spin_lock_irqsave(&ppd->sdma_lock, flags); + if (unlikely(!__qib_sdma_running(ppd))) { + spin_unlock_irqrestore(&ppd->sdma_lock, flags); + return -ECOMM; + } + pq->num_pending += count; + list_splice_tail_init(pktlist, &ppd->sdma_userpending); + qib_user_sdma_send_desc(ppd, &ppd->sdma_userpending); + spin_unlock_irqrestore(&ppd->sdma_lock, flags); + return 0; + } + + /* In this case, descriptors from this process are not + * linked to ppd pending queue, interrupt handler + * won't update this process, it is OK to directly + * modify without sdma lock. + */ + + + pq->num_pending += count; + /* + * Blocking mode for single rail process, we must + * release/regain sdma_lock to give other process + * chance to make progress. This is important for + * performance. + */ + do { + spin_lock_irqsave(&ppd->sdma_lock, flags); + if (unlikely(!__qib_sdma_running(ppd))) { + spin_unlock_irqrestore(&ppd->sdma_lock, flags); + return -ECOMM; + } + qib_user_sdma_send_desc(ppd, pktlist); + if (!list_empty(pktlist)) + qib_sdma_make_progress(ppd); + spin_unlock_irqrestore(&ppd->sdma_lock, flags); + } while (!list_empty(pktlist)); + + return 0; +} + +int qib_user_sdma_writev(struct qib_ctxtdata *rcd, + struct qib_user_sdma_queue *pq, + const struct iovec *iov, + unsigned long dim) +{ + struct qib_devdata *dd = rcd->dd; + struct qib_pportdata *ppd = rcd->ppd; + int ret = 0; + struct list_head list; + int npkts = 0; + + INIT_LIST_HEAD(&list); + + mutex_lock(&pq->lock); + + /* why not -ECOMM like qib_user_sdma_push_pkts() below? */ + if (!qib_sdma_running(ppd)) + goto done_unlock; + + /* if I have packets not complete yet */ + if (pq->added > ppd->sdma_descq_removed) + qib_user_sdma_hwqueue_clean(ppd); + /* if I have complete packets to be freed */ + if (pq->num_sending) + qib_user_sdma_queue_clean(ppd, pq); + + while (dim) { + int mxp = 1; + int ndesc = 0; + + ret = qib_user_sdma_queue_pkts(dd, ppd, pq, + iov, dim, &list, &mxp, &ndesc); + if (ret < 0) + goto done_unlock; + else { + dim -= ret; + iov += ret; + } + + /* force packets onto the sdma hw queue... */ + if (!list_empty(&list)) { + /* + * Lazily clean hw queue. + */ + if (qib_sdma_descq_freecnt(ppd) < ndesc) { + qib_user_sdma_hwqueue_clean(ppd); + if (pq->num_sending) + qib_user_sdma_queue_clean(ppd, pq); + } + + ret = qib_user_sdma_push_pkts(ppd, pq, &list, mxp); + if (ret < 0) + goto done_unlock; + else { + npkts += mxp; + pq->counter += mxp; + } + } + } + +done_unlock: + if (!list_empty(&list)) + qib_user_sdma_free_pkt_list(&dd->pcidev->dev, pq, &list); + mutex_unlock(&pq->lock); + + return (ret < 0) ? ret : npkts; +} + +int qib_user_sdma_make_progress(struct qib_pportdata *ppd, + struct qib_user_sdma_queue *pq) +{ + int ret = 0; + + mutex_lock(&pq->lock); + qib_user_sdma_hwqueue_clean(ppd); + ret = qib_user_sdma_queue_clean(ppd, pq); + mutex_unlock(&pq->lock); + + return ret; +} + +u32 qib_user_sdma_complete_counter(const struct qib_user_sdma_queue *pq) +{ + return pq ? pq->sent_counter : 0; +} + +u32 qib_user_sdma_inflight_counter(struct qib_user_sdma_queue *pq) +{ + return pq ? pq->counter : 0; +} diff --git a/drivers/infiniband/hw/qib/qib_user_sdma.h b/drivers/infiniband/hw/qib/qib_user_sdma.h new file mode 100644 index 000000000..ce8cbaf6a --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_user_sdma.h @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2007, 2008 QLogic Corporation. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include <linux/device.h> + +struct qib_user_sdma_queue; + +struct qib_user_sdma_queue * +qib_user_sdma_queue_create(struct device *dev, int unit, int port, int sport); +void qib_user_sdma_queue_destroy(struct qib_user_sdma_queue *pq); + +int qib_user_sdma_writev(struct qib_ctxtdata *pd, + struct qib_user_sdma_queue *pq, + const struct iovec *iov, + unsigned long dim); + +int qib_user_sdma_make_progress(struct qib_pportdata *ppd, + struct qib_user_sdma_queue *pq); + +void qib_user_sdma_queue_drain(struct qib_pportdata *ppd, + struct qib_user_sdma_queue *pq); + +u32 qib_user_sdma_complete_counter(const struct qib_user_sdma_queue *pq); +u32 qib_user_sdma_inflight_counter(struct qib_user_sdma_queue *pq); diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c new file mode 100644 index 000000000..0080f0be7 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_verbs.c @@ -0,0 +1,1705 @@ +/* + * Copyright (c) 2012 - 2018 Intel Corporation. All rights reserved. + * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. + * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <rdma/ib_mad.h> +#include <rdma/ib_user_verbs.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/utsname.h> +#include <linux/rculist.h> +#include <linux/mm.h> +#include <linux/vmalloc.h> +#include <rdma/rdma_vt.h> + +#include "qib.h" +#include "qib_common.h" + +static unsigned int ib_qib_qp_table_size = 256; +module_param_named(qp_table_size, ib_qib_qp_table_size, uint, S_IRUGO); +MODULE_PARM_DESC(qp_table_size, "QP table size"); + +static unsigned int qib_lkey_table_size = 16; +module_param_named(lkey_table_size, qib_lkey_table_size, uint, + S_IRUGO); +MODULE_PARM_DESC(lkey_table_size, + "LKEY table size in bits (2^n, 1 <= n <= 23)"); + +static unsigned int ib_qib_max_pds = 0xFFFF; +module_param_named(max_pds, ib_qib_max_pds, uint, S_IRUGO); +MODULE_PARM_DESC(max_pds, + "Maximum number of protection domains to support"); + +static unsigned int ib_qib_max_ahs = 0xFFFF; +module_param_named(max_ahs, ib_qib_max_ahs, uint, S_IRUGO); +MODULE_PARM_DESC(max_ahs, "Maximum number of address handles to support"); + +unsigned int ib_qib_max_cqes = 0x2FFFF; +module_param_named(max_cqes, ib_qib_max_cqes, uint, S_IRUGO); +MODULE_PARM_DESC(max_cqes, + "Maximum number of completion queue entries to support"); + +unsigned int ib_qib_max_cqs = 0x1FFFF; +module_param_named(max_cqs, ib_qib_max_cqs, uint, S_IRUGO); +MODULE_PARM_DESC(max_cqs, "Maximum number of completion queues to support"); + +unsigned int ib_qib_max_qp_wrs = 0x3FFF; +module_param_named(max_qp_wrs, ib_qib_max_qp_wrs, uint, S_IRUGO); +MODULE_PARM_DESC(max_qp_wrs, "Maximum number of QP WRs to support"); + +unsigned int ib_qib_max_qps = 16384; +module_param_named(max_qps, ib_qib_max_qps, uint, S_IRUGO); +MODULE_PARM_DESC(max_qps, "Maximum number of QPs to support"); + +unsigned int ib_qib_max_sges = 0x60; +module_param_named(max_sges, ib_qib_max_sges, uint, S_IRUGO); +MODULE_PARM_DESC(max_sges, "Maximum number of SGEs to support"); + +unsigned int ib_qib_max_mcast_grps = 16384; +module_param_named(max_mcast_grps, ib_qib_max_mcast_grps, uint, S_IRUGO); +MODULE_PARM_DESC(max_mcast_grps, + "Maximum number of multicast groups to support"); + +unsigned int ib_qib_max_mcast_qp_attached = 16; +module_param_named(max_mcast_qp_attached, ib_qib_max_mcast_qp_attached, + uint, S_IRUGO); +MODULE_PARM_DESC(max_mcast_qp_attached, + "Maximum number of attached QPs to support"); + +unsigned int ib_qib_max_srqs = 1024; +module_param_named(max_srqs, ib_qib_max_srqs, uint, S_IRUGO); +MODULE_PARM_DESC(max_srqs, "Maximum number of SRQs to support"); + +unsigned int ib_qib_max_srq_sges = 128; +module_param_named(max_srq_sges, ib_qib_max_srq_sges, uint, S_IRUGO); +MODULE_PARM_DESC(max_srq_sges, "Maximum number of SRQ SGEs to support"); + +unsigned int ib_qib_max_srq_wrs = 0x1FFFF; +module_param_named(max_srq_wrs, ib_qib_max_srq_wrs, uint, S_IRUGO); +MODULE_PARM_DESC(max_srq_wrs, "Maximum number of SRQ WRs support"); + +static unsigned int ib_qib_disable_sma; +module_param_named(disable_sma, ib_qib_disable_sma, uint, S_IWUSR | S_IRUGO); +MODULE_PARM_DESC(disable_sma, "Disable the SMA"); + +/* + * Translate ib_wr_opcode into ib_wc_opcode. + */ +const enum ib_wc_opcode ib_qib_wc_opcode[] = { + [IB_WR_RDMA_WRITE] = IB_WC_RDMA_WRITE, + [IB_WR_RDMA_WRITE_WITH_IMM] = IB_WC_RDMA_WRITE, + [IB_WR_SEND] = IB_WC_SEND, + [IB_WR_SEND_WITH_IMM] = IB_WC_SEND, + [IB_WR_RDMA_READ] = IB_WC_RDMA_READ, + [IB_WR_ATOMIC_CMP_AND_SWP] = IB_WC_COMP_SWAP, + [IB_WR_ATOMIC_FETCH_AND_ADD] = IB_WC_FETCH_ADD +}; + +/* + * System image GUID. + */ +__be64 ib_qib_sys_image_guid; + +/* + * Count the number of DMA descriptors needed to send length bytes of data. + * Don't modify the qib_sge_state to get the count. + * Return zero if any of the segments is not aligned. + */ +static u32 qib_count_sge(struct rvt_sge_state *ss, u32 length) +{ + struct rvt_sge *sg_list = ss->sg_list; + struct rvt_sge sge = ss->sge; + u8 num_sge = ss->num_sge; + u32 ndesc = 1; /* count the header */ + + while (length) { + u32 len = rvt_get_sge_length(&sge, length); + + if (((long) sge.vaddr & (sizeof(u32) - 1)) || + (len != length && (len & (sizeof(u32) - 1)))) { + ndesc = 0; + break; + } + ndesc++; + sge.vaddr += len; + sge.length -= len; + sge.sge_length -= len; + if (sge.sge_length == 0) { + if (--num_sge) + sge = *sg_list++; + } else if (sge.length == 0 && sge.mr->lkey) { + if (++sge.n >= RVT_SEGSZ) { + if (++sge.m >= sge.mr->mapsz) + break; + sge.n = 0; + } + sge.vaddr = + sge.mr->map[sge.m]->segs[sge.n].vaddr; + sge.length = + sge.mr->map[sge.m]->segs[sge.n].length; + } + length -= len; + } + return ndesc; +} + +/* + * Copy from the SGEs to the data buffer. + */ +static void qib_copy_from_sge(void *data, struct rvt_sge_state *ss, u32 length) +{ + struct rvt_sge *sge = &ss->sge; + + while (length) { + u32 len = rvt_get_sge_length(sge, length); + + memcpy(data, sge->vaddr, len); + sge->vaddr += len; + sge->length -= len; + sge->sge_length -= len; + if (sge->sge_length == 0) { + if (--ss->num_sge) + *sge = *ss->sg_list++; + } else if (sge->length == 0 && sge->mr->lkey) { + if (++sge->n >= RVT_SEGSZ) { + if (++sge->m >= sge->mr->mapsz) + break; + sge->n = 0; + } + sge->vaddr = + sge->mr->map[sge->m]->segs[sge->n].vaddr; + sge->length = + sge->mr->map[sge->m]->segs[sge->n].length; + } + data += len; + length -= len; + } +} + +/** + * qib_qp_rcv - processing an incoming packet on a QP + * @rcd: the context pointer + * @hdr: the packet header + * @has_grh: true if the packet has a GRH + * @data: the packet data + * @tlen: the packet length + * @qp: the QP the packet came on + * + * This is called from qib_ib_rcv() to process an incoming packet + * for the given QP. + * Called at interrupt level. + */ +static void qib_qp_rcv(struct qib_ctxtdata *rcd, struct ib_header *hdr, + int has_grh, void *data, u32 tlen, struct rvt_qp *qp) +{ + struct qib_ibport *ibp = &rcd->ppd->ibport_data; + + spin_lock(&qp->r_lock); + + /* Check for valid receive state. */ + if (!(ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK)) { + ibp->rvp.n_pkt_drops++; + goto unlock; + } + + switch (qp->ibqp.qp_type) { + case IB_QPT_SMI: + case IB_QPT_GSI: + if (ib_qib_disable_sma) + break; + fallthrough; + case IB_QPT_UD: + qib_ud_rcv(ibp, hdr, has_grh, data, tlen, qp); + break; + + case IB_QPT_RC: + qib_rc_rcv(rcd, hdr, has_grh, data, tlen, qp); + break; + + case IB_QPT_UC: + qib_uc_rcv(ibp, hdr, has_grh, data, tlen, qp); + break; + + default: + break; + } + +unlock: + spin_unlock(&qp->r_lock); +} + +/** + * qib_ib_rcv - process an incoming packet + * @rcd: the context pointer + * @rhdr: the header of the packet + * @data: the packet payload + * @tlen: the packet length + * + * This is called from qib_kreceive() to process an incoming packet at + * interrupt level. Tlen is the length of the header + data + CRC in bytes. + */ +void qib_ib_rcv(struct qib_ctxtdata *rcd, void *rhdr, void *data, u32 tlen) +{ + struct qib_pportdata *ppd = rcd->ppd; + struct qib_ibport *ibp = &ppd->ibport_data; + struct ib_header *hdr = rhdr; + struct qib_devdata *dd = ppd->dd; + struct rvt_dev_info *rdi = &dd->verbs_dev.rdi; + struct ib_other_headers *ohdr; + struct rvt_qp *qp; + u32 qp_num; + int lnh; + u8 opcode; + u16 lid; + + /* 24 == LRH+BTH+CRC */ + if (unlikely(tlen < 24)) + goto drop; + + /* Check for a valid destination LID (see ch. 7.11.1). */ + lid = be16_to_cpu(hdr->lrh[1]); + if (lid < be16_to_cpu(IB_MULTICAST_LID_BASE)) { + lid &= ~((1 << ppd->lmc) - 1); + if (unlikely(lid != ppd->lid)) + goto drop; + } + + /* Check for GRH */ + lnh = be16_to_cpu(hdr->lrh[0]) & 3; + if (lnh == QIB_LRH_BTH) + ohdr = &hdr->u.oth; + else if (lnh == QIB_LRH_GRH) { + u32 vtf; + + ohdr = &hdr->u.l.oth; + if (hdr->u.l.grh.next_hdr != IB_GRH_NEXT_HDR) + goto drop; + vtf = be32_to_cpu(hdr->u.l.grh.version_tclass_flow); + if ((vtf >> IB_GRH_VERSION_SHIFT) != IB_GRH_VERSION) + goto drop; + } else + goto drop; + + opcode = (be32_to_cpu(ohdr->bth[0]) >> 24) & 0x7f; +#ifdef CONFIG_DEBUG_FS + rcd->opstats->stats[opcode].n_bytes += tlen; + rcd->opstats->stats[opcode].n_packets++; +#endif + + /* Get the destination QP number. */ + qp_num = be32_to_cpu(ohdr->bth[1]) & RVT_QPN_MASK; + if (qp_num == QIB_MULTICAST_QPN) { + struct rvt_mcast *mcast; + struct rvt_mcast_qp *p; + + if (lnh != QIB_LRH_GRH) + goto drop; + mcast = rvt_mcast_find(&ibp->rvp, &hdr->u.l.grh.dgid, lid); + if (mcast == NULL) + goto drop; + this_cpu_inc(ibp->pmastats->n_multicast_rcv); + rcu_read_lock(); + list_for_each_entry_rcu(p, &mcast->qp_list, list) + qib_qp_rcv(rcd, hdr, 1, data, tlen, p->qp); + rcu_read_unlock(); + /* + * Notify rvt_multicast_detach() if it is waiting for us + * to finish. + */ + if (atomic_dec_return(&mcast->refcount) <= 1) + wake_up(&mcast->wait); + } else { + rcu_read_lock(); + qp = rvt_lookup_qpn(rdi, &ibp->rvp, qp_num); + if (!qp) { + rcu_read_unlock(); + goto drop; + } + this_cpu_inc(ibp->pmastats->n_unicast_rcv); + qib_qp_rcv(rcd, hdr, lnh == QIB_LRH_GRH, data, tlen, qp); + rcu_read_unlock(); + } + return; + +drop: + ibp->rvp.n_pkt_drops++; +} + +/* + * This is called from a timer to check for QPs + * which need kernel memory in order to send a packet. + */ +static void mem_timer(struct timer_list *t) +{ + struct qib_ibdev *dev = from_timer(dev, t, mem_timer); + struct list_head *list = &dev->memwait; + struct rvt_qp *qp = NULL; + struct qib_qp_priv *priv = NULL; + unsigned long flags; + + spin_lock_irqsave(&dev->rdi.pending_lock, flags); + if (!list_empty(list)) { + priv = list_entry(list->next, struct qib_qp_priv, iowait); + qp = priv->owner; + list_del_init(&priv->iowait); + rvt_get_qp(qp); + if (!list_empty(list)) + mod_timer(&dev->mem_timer, jiffies + 1); + } + spin_unlock_irqrestore(&dev->rdi.pending_lock, flags); + + if (qp) { + spin_lock_irqsave(&qp->s_lock, flags); + if (qp->s_flags & RVT_S_WAIT_KMEM) { + qp->s_flags &= ~RVT_S_WAIT_KMEM; + qib_schedule_send(qp); + } + spin_unlock_irqrestore(&qp->s_lock, flags); + rvt_put_qp(qp); + } +} + +#ifdef __LITTLE_ENDIAN +static inline u32 get_upper_bits(u32 data, u32 shift) +{ + return data >> shift; +} + +static inline u32 set_upper_bits(u32 data, u32 shift) +{ + return data << shift; +} + +static inline u32 clear_upper_bytes(u32 data, u32 n, u32 off) +{ + data <<= ((sizeof(u32) - n) * BITS_PER_BYTE); + data >>= ((sizeof(u32) - n - off) * BITS_PER_BYTE); + return data; +} +#else +static inline u32 get_upper_bits(u32 data, u32 shift) +{ + return data << shift; +} + +static inline u32 set_upper_bits(u32 data, u32 shift) +{ + return data >> shift; +} + +static inline u32 clear_upper_bytes(u32 data, u32 n, u32 off) +{ + data >>= ((sizeof(u32) - n) * BITS_PER_BYTE); + data <<= ((sizeof(u32) - n - off) * BITS_PER_BYTE); + return data; +} +#endif + +static void qib_copy_io(u32 __iomem *piobuf, struct rvt_sge_state *ss, + u32 length, unsigned flush_wc) +{ + u32 extra = 0; + u32 data = 0; + u32 last; + + while (1) { + u32 len = rvt_get_sge_length(&ss->sge, length); + u32 off; + + /* If the source address is not aligned, try to align it. */ + off = (unsigned long)ss->sge.vaddr & (sizeof(u32) - 1); + if (off) { + u32 *addr = (u32 *)((unsigned long)ss->sge.vaddr & + ~(sizeof(u32) - 1)); + u32 v = get_upper_bits(*addr, off * BITS_PER_BYTE); + u32 y; + + y = sizeof(u32) - off; + if (len > y) + len = y; + if (len + extra >= sizeof(u32)) { + data |= set_upper_bits(v, extra * + BITS_PER_BYTE); + len = sizeof(u32) - extra; + if (len == length) { + last = data; + break; + } + __raw_writel(data, piobuf); + piobuf++; + extra = 0; + data = 0; + } else { + /* Clear unused upper bytes */ + data |= clear_upper_bytes(v, len, extra); + if (len == length) { + last = data; + break; + } + extra += len; + } + } else if (extra) { + /* Source address is aligned. */ + u32 *addr = (u32 *) ss->sge.vaddr; + int shift = extra * BITS_PER_BYTE; + int ushift = 32 - shift; + u32 l = len; + + while (l >= sizeof(u32)) { + u32 v = *addr; + + data |= set_upper_bits(v, shift); + __raw_writel(data, piobuf); + data = get_upper_bits(v, ushift); + piobuf++; + addr++; + l -= sizeof(u32); + } + /* + * We still have 'extra' number of bytes leftover. + */ + if (l) { + u32 v = *addr; + + if (l + extra >= sizeof(u32)) { + data |= set_upper_bits(v, shift); + len -= l + extra - sizeof(u32); + if (len == length) { + last = data; + break; + } + __raw_writel(data, piobuf); + piobuf++; + extra = 0; + data = 0; + } else { + /* Clear unused upper bytes */ + data |= clear_upper_bytes(v, l, extra); + if (len == length) { + last = data; + break; + } + extra += l; + } + } else if (len == length) { + last = data; + break; + } + } else if (len == length) { + u32 w; + + /* + * Need to round up for the last dword in the + * packet. + */ + w = (len + 3) >> 2; + qib_pio_copy(piobuf, ss->sge.vaddr, w - 1); + piobuf += w - 1; + last = ((u32 *) ss->sge.vaddr)[w - 1]; + break; + } else { + u32 w = len >> 2; + + qib_pio_copy(piobuf, ss->sge.vaddr, w); + piobuf += w; + + extra = len & (sizeof(u32) - 1); + if (extra) { + u32 v = ((u32 *) ss->sge.vaddr)[w]; + + /* Clear unused upper bytes */ + data = clear_upper_bytes(v, extra, 0); + } + } + rvt_update_sge(ss, len, false); + length -= len; + } + /* Update address before sending packet. */ + rvt_update_sge(ss, length, false); + if (flush_wc) { + /* must flush early everything before trigger word */ + qib_flush_wc(); + __raw_writel(last, piobuf); + /* be sure trigger word is written */ + qib_flush_wc(); + } else + __raw_writel(last, piobuf); +} + +static noinline struct qib_verbs_txreq *__get_txreq(struct qib_ibdev *dev, + struct rvt_qp *qp) +{ + struct qib_qp_priv *priv = qp->priv; + struct qib_verbs_txreq *tx; + unsigned long flags; + + spin_lock_irqsave(&qp->s_lock, flags); + spin_lock(&dev->rdi.pending_lock); + + if (!list_empty(&dev->txreq_free)) { + struct list_head *l = dev->txreq_free.next; + + list_del(l); + spin_unlock(&dev->rdi.pending_lock); + spin_unlock_irqrestore(&qp->s_lock, flags); + tx = list_entry(l, struct qib_verbs_txreq, txreq.list); + } else { + if (ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK && + list_empty(&priv->iowait)) { + dev->n_txwait++; + qp->s_flags |= RVT_S_WAIT_TX; + list_add_tail(&priv->iowait, &dev->txwait); + } + qp->s_flags &= ~RVT_S_BUSY; + spin_unlock(&dev->rdi.pending_lock); + spin_unlock_irqrestore(&qp->s_lock, flags); + tx = ERR_PTR(-EBUSY); + } + return tx; +} + +static inline struct qib_verbs_txreq *get_txreq(struct qib_ibdev *dev, + struct rvt_qp *qp) +{ + struct qib_verbs_txreq *tx; + unsigned long flags; + + spin_lock_irqsave(&dev->rdi.pending_lock, flags); + /* assume the list non empty */ + if (likely(!list_empty(&dev->txreq_free))) { + struct list_head *l = dev->txreq_free.next; + + list_del(l); + spin_unlock_irqrestore(&dev->rdi.pending_lock, flags); + tx = list_entry(l, struct qib_verbs_txreq, txreq.list); + } else { + /* call slow path to get the extra lock */ + spin_unlock_irqrestore(&dev->rdi.pending_lock, flags); + tx = __get_txreq(dev, qp); + } + return tx; +} + +void qib_put_txreq(struct qib_verbs_txreq *tx) +{ + struct qib_ibdev *dev; + struct rvt_qp *qp; + struct qib_qp_priv *priv; + unsigned long flags; + + qp = tx->qp; + dev = to_idev(qp->ibqp.device); + + if (tx->mr) { + rvt_put_mr(tx->mr); + tx->mr = NULL; + } + if (tx->txreq.flags & QIB_SDMA_TXREQ_F_FREEBUF) { + tx->txreq.flags &= ~QIB_SDMA_TXREQ_F_FREEBUF; + dma_unmap_single(&dd_from_dev(dev)->pcidev->dev, + tx->txreq.addr, tx->hdr_dwords << 2, + DMA_TO_DEVICE); + kfree(tx->align_buf); + } + + spin_lock_irqsave(&dev->rdi.pending_lock, flags); + + /* Put struct back on free list */ + list_add(&tx->txreq.list, &dev->txreq_free); + + if (!list_empty(&dev->txwait)) { + /* Wake up first QP wanting a free struct */ + priv = list_entry(dev->txwait.next, struct qib_qp_priv, + iowait); + qp = priv->owner; + list_del_init(&priv->iowait); + rvt_get_qp(qp); + spin_unlock_irqrestore(&dev->rdi.pending_lock, flags); + + spin_lock_irqsave(&qp->s_lock, flags); + if (qp->s_flags & RVT_S_WAIT_TX) { + qp->s_flags &= ~RVT_S_WAIT_TX; + qib_schedule_send(qp); + } + spin_unlock_irqrestore(&qp->s_lock, flags); + + rvt_put_qp(qp); + } else + spin_unlock_irqrestore(&dev->rdi.pending_lock, flags); +} + +/* + * This is called when there are send DMA descriptors that might be + * available. + * + * This is called with ppd->sdma_lock held. + */ +void qib_verbs_sdma_desc_avail(struct qib_pportdata *ppd, unsigned avail) +{ + struct rvt_qp *qp; + struct qib_qp_priv *qpp, *nqpp; + struct rvt_qp *qps[20]; + struct qib_ibdev *dev; + unsigned i, n; + + n = 0; + dev = &ppd->dd->verbs_dev; + spin_lock(&dev->rdi.pending_lock); + + /* Search wait list for first QP wanting DMA descriptors. */ + list_for_each_entry_safe(qpp, nqpp, &dev->dmawait, iowait) { + qp = qpp->owner; + if (qp->port_num != ppd->port) + continue; + if (n == ARRAY_SIZE(qps)) + break; + if (qpp->s_tx->txreq.sg_count > avail) + break; + avail -= qpp->s_tx->txreq.sg_count; + list_del_init(&qpp->iowait); + rvt_get_qp(qp); + qps[n++] = qp; + } + + spin_unlock(&dev->rdi.pending_lock); + + for (i = 0; i < n; i++) { + qp = qps[i]; + spin_lock(&qp->s_lock); + if (qp->s_flags & RVT_S_WAIT_DMA_DESC) { + qp->s_flags &= ~RVT_S_WAIT_DMA_DESC; + qib_schedule_send(qp); + } + spin_unlock(&qp->s_lock); + rvt_put_qp(qp); + } +} + +/* + * This is called with ppd->sdma_lock held. + */ +static void sdma_complete(struct qib_sdma_txreq *cookie, int status) +{ + struct qib_verbs_txreq *tx = + container_of(cookie, struct qib_verbs_txreq, txreq); + struct rvt_qp *qp = tx->qp; + struct qib_qp_priv *priv = qp->priv; + + spin_lock(&qp->s_lock); + if (tx->wqe) + rvt_send_complete(qp, tx->wqe, IB_WC_SUCCESS); + else if (qp->ibqp.qp_type == IB_QPT_RC) { + struct ib_header *hdr; + + if (tx->txreq.flags & QIB_SDMA_TXREQ_F_FREEBUF) + hdr = &tx->align_buf->hdr; + else { + struct qib_ibdev *dev = to_idev(qp->ibqp.device); + + hdr = &dev->pio_hdrs[tx->hdr_inx].hdr; + } + qib_rc_send_complete(qp, hdr); + } + if (atomic_dec_and_test(&priv->s_dma_busy)) { + if (qp->state == IB_QPS_RESET) + wake_up(&priv->wait_dma); + else if (qp->s_flags & RVT_S_WAIT_DMA) { + qp->s_flags &= ~RVT_S_WAIT_DMA; + qib_schedule_send(qp); + } + } + spin_unlock(&qp->s_lock); + + qib_put_txreq(tx); +} + +static int wait_kmem(struct qib_ibdev *dev, struct rvt_qp *qp) +{ + struct qib_qp_priv *priv = qp->priv; + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(&qp->s_lock, flags); + if (ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK) { + spin_lock(&dev->rdi.pending_lock); + if (list_empty(&priv->iowait)) { + if (list_empty(&dev->memwait)) + mod_timer(&dev->mem_timer, jiffies + 1); + qp->s_flags |= RVT_S_WAIT_KMEM; + list_add_tail(&priv->iowait, &dev->memwait); + } + spin_unlock(&dev->rdi.pending_lock); + qp->s_flags &= ~RVT_S_BUSY; + ret = -EBUSY; + } + spin_unlock_irqrestore(&qp->s_lock, flags); + + return ret; +} + +static int qib_verbs_send_dma(struct rvt_qp *qp, struct ib_header *hdr, + u32 hdrwords, struct rvt_sge_state *ss, u32 len, + u32 plen, u32 dwords) +{ + struct qib_qp_priv *priv = qp->priv; + struct qib_ibdev *dev = to_idev(qp->ibqp.device); + struct qib_devdata *dd = dd_from_dev(dev); + struct qib_ibport *ibp = to_iport(qp->ibqp.device, qp->port_num); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + struct qib_verbs_txreq *tx; + struct qib_pio_header *phdr; + u32 control; + u32 ndesc; + int ret; + + tx = priv->s_tx; + if (tx) { + priv->s_tx = NULL; + /* resend previously constructed packet */ + ret = qib_sdma_verbs_send(ppd, tx->ss, tx->dwords, tx); + goto bail; + } + + tx = get_txreq(dev, qp); + if (IS_ERR(tx)) + goto bail_tx; + + control = dd->f_setpbc_control(ppd, plen, qp->s_srate, + be16_to_cpu(hdr->lrh[0]) >> 12); + tx->qp = qp; + tx->wqe = qp->s_wqe; + tx->mr = qp->s_rdma_mr; + if (qp->s_rdma_mr) + qp->s_rdma_mr = NULL; + tx->txreq.callback = sdma_complete; + if (dd->flags & QIB_HAS_SDMA_TIMEOUT) + tx->txreq.flags = QIB_SDMA_TXREQ_F_HEADTOHOST; + else + tx->txreq.flags = QIB_SDMA_TXREQ_F_INTREQ; + if (plen + 1 > dd->piosize2kmax_dwords) + tx->txreq.flags |= QIB_SDMA_TXREQ_F_USELARGEBUF; + + if (len) { + /* + * Don't try to DMA if it takes more descriptors than + * the queue holds. + */ + ndesc = qib_count_sge(ss, len); + if (ndesc >= ppd->sdma_descq_cnt) + ndesc = 0; + } else + ndesc = 1; + if (ndesc) { + phdr = &dev->pio_hdrs[tx->hdr_inx]; + phdr->pbc[0] = cpu_to_le32(plen); + phdr->pbc[1] = cpu_to_le32(control); + memcpy(&phdr->hdr, hdr, hdrwords << 2); + tx->txreq.flags |= QIB_SDMA_TXREQ_F_FREEDESC; + tx->txreq.sg_count = ndesc; + tx->txreq.addr = dev->pio_hdrs_phys + + tx->hdr_inx * sizeof(struct qib_pio_header); + tx->hdr_dwords = hdrwords + 2; /* add PBC length */ + ret = qib_sdma_verbs_send(ppd, ss, dwords, tx); + goto bail; + } + + /* Allocate a buffer and copy the header and payload to it. */ + tx->hdr_dwords = plen + 1; + phdr = kmalloc(tx->hdr_dwords << 2, GFP_ATOMIC); + if (!phdr) + goto err_tx; + phdr->pbc[0] = cpu_to_le32(plen); + phdr->pbc[1] = cpu_to_le32(control); + memcpy(&phdr->hdr, hdr, hdrwords << 2); + qib_copy_from_sge((u32 *) &phdr->hdr + hdrwords, ss, len); + + tx->txreq.addr = dma_map_single(&dd->pcidev->dev, phdr, + tx->hdr_dwords << 2, DMA_TO_DEVICE); + if (dma_mapping_error(&dd->pcidev->dev, tx->txreq.addr)) + goto map_err; + tx->align_buf = phdr; + tx->txreq.flags |= QIB_SDMA_TXREQ_F_FREEBUF; + tx->txreq.sg_count = 1; + ret = qib_sdma_verbs_send(ppd, NULL, 0, tx); + goto unaligned; + +map_err: + kfree(phdr); +err_tx: + qib_put_txreq(tx); + ret = wait_kmem(dev, qp); +unaligned: + ibp->rvp.n_unaligned++; +bail: + return ret; +bail_tx: + ret = PTR_ERR(tx); + goto bail; +} + +/* + * If we are now in the error state, return zero to flush the + * send work request. + */ +static int no_bufs_available(struct rvt_qp *qp) +{ + struct qib_qp_priv *priv = qp->priv; + struct qib_ibdev *dev = to_idev(qp->ibqp.device); + struct qib_devdata *dd; + unsigned long flags; + int ret = 0; + + /* + * Note that as soon as want_buffer() is called and + * possibly before it returns, qib_ib_piobufavail() + * could be called. Therefore, put QP on the I/O wait list before + * enabling the PIO avail interrupt. + */ + spin_lock_irqsave(&qp->s_lock, flags); + if (ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK) { + spin_lock(&dev->rdi.pending_lock); + if (list_empty(&priv->iowait)) { + dev->n_piowait++; + qp->s_flags |= RVT_S_WAIT_PIO; + list_add_tail(&priv->iowait, &dev->piowait); + dd = dd_from_dev(dev); + dd->f_wantpiobuf_intr(dd, 1); + } + spin_unlock(&dev->rdi.pending_lock); + qp->s_flags &= ~RVT_S_BUSY; + ret = -EBUSY; + } + spin_unlock_irqrestore(&qp->s_lock, flags); + return ret; +} + +static int qib_verbs_send_pio(struct rvt_qp *qp, struct ib_header *ibhdr, + u32 hdrwords, struct rvt_sge_state *ss, u32 len, + u32 plen, u32 dwords) +{ + struct qib_devdata *dd = dd_from_ibdev(qp->ibqp.device); + struct qib_pportdata *ppd = dd->pport + qp->port_num - 1; + u32 *hdr = (u32 *) ibhdr; + u32 __iomem *piobuf_orig; + u32 __iomem *piobuf; + u64 pbc; + unsigned long flags; + unsigned flush_wc; + u32 control; + u32 pbufn; + + control = dd->f_setpbc_control(ppd, plen, qp->s_srate, + be16_to_cpu(ibhdr->lrh[0]) >> 12); + pbc = ((u64) control << 32) | plen; + piobuf = dd->f_getsendbuf(ppd, pbc, &pbufn); + if (unlikely(piobuf == NULL)) + return no_bufs_available(qp); + + /* + * Write the pbc. + * We have to flush after the PBC for correctness on some cpus + * or WC buffer can be written out of order. + */ + writeq(pbc, piobuf); + piobuf_orig = piobuf; + piobuf += 2; + + flush_wc = dd->flags & QIB_PIO_FLUSH_WC; + if (len == 0) { + /* + * If there is just the header portion, must flush before + * writing last word of header for correctness, and after + * the last header word (trigger word). + */ + if (flush_wc) { + qib_flush_wc(); + qib_pio_copy(piobuf, hdr, hdrwords - 1); + qib_flush_wc(); + __raw_writel(hdr[hdrwords - 1], piobuf + hdrwords - 1); + qib_flush_wc(); + } else + qib_pio_copy(piobuf, hdr, hdrwords); + goto done; + } + + if (flush_wc) + qib_flush_wc(); + qib_pio_copy(piobuf, hdr, hdrwords); + piobuf += hdrwords; + + /* The common case is aligned and contained in one segment. */ + if (likely(ss->num_sge == 1 && len <= ss->sge.length && + !((unsigned long)ss->sge.vaddr & (sizeof(u32) - 1)))) { + u32 *addr = (u32 *) ss->sge.vaddr; + + /* Update address before sending packet. */ + rvt_update_sge(ss, len, false); + if (flush_wc) { + qib_pio_copy(piobuf, addr, dwords - 1); + /* must flush early everything before trigger word */ + qib_flush_wc(); + __raw_writel(addr[dwords - 1], piobuf + dwords - 1); + /* be sure trigger word is written */ + qib_flush_wc(); + } else + qib_pio_copy(piobuf, addr, dwords); + goto done; + } + qib_copy_io(piobuf, ss, len, flush_wc); +done: + if (dd->flags & QIB_USE_SPCL_TRIG) { + u32 spcl_off = (pbufn >= dd->piobcnt2k) ? 2047 : 1023; + + qib_flush_wc(); + __raw_writel(0xaebecede, piobuf_orig + spcl_off); + } + qib_sendbuf_done(dd, pbufn); + if (qp->s_rdma_mr) { + rvt_put_mr(qp->s_rdma_mr); + qp->s_rdma_mr = NULL; + } + if (qp->s_wqe) { + spin_lock_irqsave(&qp->s_lock, flags); + rvt_send_complete(qp, qp->s_wqe, IB_WC_SUCCESS); + spin_unlock_irqrestore(&qp->s_lock, flags); + } else if (qp->ibqp.qp_type == IB_QPT_RC) { + spin_lock_irqsave(&qp->s_lock, flags); + qib_rc_send_complete(qp, ibhdr); + spin_unlock_irqrestore(&qp->s_lock, flags); + } + return 0; +} + +/** + * qib_verbs_send - send a packet + * @qp: the QP to send on + * @hdr: the packet header + * @hdrwords: the number of 32-bit words in the header + * @ss: the SGE to send + * @len: the length of the packet in bytes + * + * Return zero if packet is sent or queued OK. + * Return non-zero and clear qp->s_flags RVT_S_BUSY otherwise. + */ +int qib_verbs_send(struct rvt_qp *qp, struct ib_header *hdr, + u32 hdrwords, struct rvt_sge_state *ss, u32 len) +{ + struct qib_devdata *dd = dd_from_ibdev(qp->ibqp.device); + u32 plen; + int ret; + u32 dwords = (len + 3) >> 2; + + /* + * Calculate the send buffer trigger address. + * The +1 counts for the pbc control dword following the pbc length. + */ + plen = hdrwords + dwords + 1; + + /* + * VL15 packets (IB_QPT_SMI) will always use PIO, so we + * can defer SDMA restart until link goes ACTIVE without + * worrying about just how we got there. + */ + if (qp->ibqp.qp_type == IB_QPT_SMI || + !(dd->flags & QIB_HAS_SEND_DMA)) + ret = qib_verbs_send_pio(qp, hdr, hdrwords, ss, len, + plen, dwords); + else + ret = qib_verbs_send_dma(qp, hdr, hdrwords, ss, len, + plen, dwords); + + return ret; +} + +int qib_snapshot_counters(struct qib_pportdata *ppd, u64 *swords, + u64 *rwords, u64 *spkts, u64 *rpkts, + u64 *xmit_wait) +{ + int ret; + struct qib_devdata *dd = ppd->dd; + + if (!(dd->flags & QIB_PRESENT)) { + /* no hardware, freeze, etc. */ + ret = -EINVAL; + goto bail; + } + *swords = dd->f_portcntr(ppd, QIBPORTCNTR_WORDSEND); + *rwords = dd->f_portcntr(ppd, QIBPORTCNTR_WORDRCV); + *spkts = dd->f_portcntr(ppd, QIBPORTCNTR_PKTSEND); + *rpkts = dd->f_portcntr(ppd, QIBPORTCNTR_PKTRCV); + *xmit_wait = dd->f_portcntr(ppd, QIBPORTCNTR_SENDSTALL); + + ret = 0; + +bail: + return ret; +} + +/** + * qib_get_counters - get various chip counters + * @ppd: the qlogic_ib device + * @cntrs: counters are placed here + * + * Return the counters needed by recv_pma_get_portcounters(). + */ +int qib_get_counters(struct qib_pportdata *ppd, + struct qib_verbs_counters *cntrs) +{ + int ret; + + if (!(ppd->dd->flags & QIB_PRESENT)) { + /* no hardware, freeze, etc. */ + ret = -EINVAL; + goto bail; + } + cntrs->symbol_error_counter = + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_IBSYMBOLERR); + cntrs->link_error_recovery_counter = + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_IBLINKERRRECOV); + /* + * The link downed counter counts when the other side downs the + * connection. We add in the number of times we downed the link + * due to local link integrity errors to compensate. + */ + cntrs->link_downed_counter = + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_IBLINKDOWN); + cntrs->port_rcv_errors = + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_RXDROPPKT) + + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_RCVOVFL) + + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_ERR_RLEN) + + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_INVALIDRLEN) + + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_ERRLINK) + + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_ERRICRC) + + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_ERRVCRC) + + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_ERRLPCRC) + + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_BADFORMAT); + cntrs->port_rcv_errors += + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_RXLOCALPHYERR); + cntrs->port_rcv_errors += + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_RXVLERR); + cntrs->port_rcv_remphys_errors = + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_RCVEBP); + cntrs->port_xmit_discards = + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_UNSUPVL); + cntrs->port_xmit_data = ppd->dd->f_portcntr(ppd, + QIBPORTCNTR_WORDSEND); + cntrs->port_rcv_data = ppd->dd->f_portcntr(ppd, + QIBPORTCNTR_WORDRCV); + cntrs->port_xmit_packets = ppd->dd->f_portcntr(ppd, + QIBPORTCNTR_PKTSEND); + cntrs->port_rcv_packets = ppd->dd->f_portcntr(ppd, + QIBPORTCNTR_PKTRCV); + cntrs->local_link_integrity_errors = + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_LLI); + cntrs->excessive_buffer_overrun_errors = + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_EXCESSBUFOVFL); + cntrs->vl15_dropped = + ppd->dd->f_portcntr(ppd, QIBPORTCNTR_VL15PKTDROP); + + ret = 0; + +bail: + return ret; +} + +/** + * qib_ib_piobufavail - callback when a PIO buffer is available + * @dd: the device pointer + * + * This is called from qib_intr() at interrupt level when a PIO buffer is + * available after qib_verbs_send() returned an error that no buffers were + * available. Disable the interrupt if there are no more QPs waiting. + */ +void qib_ib_piobufavail(struct qib_devdata *dd) +{ + struct qib_ibdev *dev = &dd->verbs_dev; + struct list_head *list; + struct rvt_qp *qps[5]; + struct rvt_qp *qp; + unsigned long flags; + unsigned i, n; + struct qib_qp_priv *priv; + + list = &dev->piowait; + n = 0; + + /* + * Note: checking that the piowait list is empty and clearing + * the buffer available interrupt needs to be atomic or we + * could end up with QPs on the wait list with the interrupt + * disabled. + */ + spin_lock_irqsave(&dev->rdi.pending_lock, flags); + while (!list_empty(list)) { + if (n == ARRAY_SIZE(qps)) + goto full; + priv = list_entry(list->next, struct qib_qp_priv, iowait); + qp = priv->owner; + list_del_init(&priv->iowait); + rvt_get_qp(qp); + qps[n++] = qp; + } + dd->f_wantpiobuf_intr(dd, 0); +full: + spin_unlock_irqrestore(&dev->rdi.pending_lock, flags); + + for (i = 0; i < n; i++) { + qp = qps[i]; + + spin_lock_irqsave(&qp->s_lock, flags); + if (qp->s_flags & RVT_S_WAIT_PIO) { + qp->s_flags &= ~RVT_S_WAIT_PIO; + qib_schedule_send(qp); + } + spin_unlock_irqrestore(&qp->s_lock, flags); + + /* Notify qib_destroy_qp() if it is waiting. */ + rvt_put_qp(qp); + } +} + +static int qib_query_port(struct rvt_dev_info *rdi, u32 port_num, + struct ib_port_attr *props) +{ + struct qib_ibdev *ibdev = container_of(rdi, struct qib_ibdev, rdi); + struct qib_devdata *dd = dd_from_dev(ibdev); + struct qib_pportdata *ppd = &dd->pport[port_num - 1]; + enum ib_mtu mtu; + u16 lid = ppd->lid; + + /* props being zeroed by the caller, avoid zeroing it here */ + props->lid = lid ? lid : be16_to_cpu(IB_LID_PERMISSIVE); + props->lmc = ppd->lmc; + props->state = dd->f_iblink_state(ppd->lastibcstat); + props->phys_state = dd->f_ibphys_portstate(ppd->lastibcstat); + props->gid_tbl_len = QIB_GUIDS_PER_PORT; + props->active_width = ppd->link_width_active; + /* See rate_show() */ + props->active_speed = ppd->link_speed_active; + props->max_vl_num = qib_num_vls(ppd->vls_supported); + + props->max_mtu = qib_ibmtu ? qib_ibmtu : IB_MTU_4096; + switch (ppd->ibmtu) { + case 4096: + mtu = IB_MTU_4096; + break; + case 2048: + mtu = IB_MTU_2048; + break; + case 1024: + mtu = IB_MTU_1024; + break; + case 512: + mtu = IB_MTU_512; + break; + case 256: + mtu = IB_MTU_256; + break; + default: + mtu = IB_MTU_2048; + } + props->active_mtu = mtu; + + return 0; +} + +static int qib_modify_device(struct ib_device *device, + int device_modify_mask, + struct ib_device_modify *device_modify) +{ + struct qib_devdata *dd = dd_from_ibdev(device); + unsigned i; + int ret; + + if (device_modify_mask & ~(IB_DEVICE_MODIFY_SYS_IMAGE_GUID | + IB_DEVICE_MODIFY_NODE_DESC)) { + ret = -EOPNOTSUPP; + goto bail; + } + + if (device_modify_mask & IB_DEVICE_MODIFY_NODE_DESC) { + memcpy(device->node_desc, device_modify->node_desc, + IB_DEVICE_NODE_DESC_MAX); + for (i = 0; i < dd->num_pports; i++) { + struct qib_ibport *ibp = &dd->pport[i].ibport_data; + + qib_node_desc_chg(ibp); + } + } + + if (device_modify_mask & IB_DEVICE_MODIFY_SYS_IMAGE_GUID) { + ib_qib_sys_image_guid = + cpu_to_be64(device_modify->sys_image_guid); + for (i = 0; i < dd->num_pports; i++) { + struct qib_ibport *ibp = &dd->pport[i].ibport_data; + + qib_sys_guid_chg(ibp); + } + } + + ret = 0; + +bail: + return ret; +} + +static int qib_shut_down_port(struct rvt_dev_info *rdi, u32 port_num) +{ + struct qib_ibdev *ibdev = container_of(rdi, struct qib_ibdev, rdi); + struct qib_devdata *dd = dd_from_dev(ibdev); + struct qib_pportdata *ppd = &dd->pport[port_num - 1]; + + qib_set_linkstate(ppd, QIB_IB_LINKDOWN); + + return 0; +} + +static int qib_get_guid_be(struct rvt_dev_info *rdi, struct rvt_ibport *rvp, + int guid_index, __be64 *guid) +{ + struct qib_ibport *ibp = container_of(rvp, struct qib_ibport, rvp); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + + if (guid_index == 0) + *guid = ppd->guid; + else if (guid_index < QIB_GUIDS_PER_PORT) + *guid = ibp->guids[guid_index - 1]; + else + return -EINVAL; + + return 0; +} + +int qib_check_ah(struct ib_device *ibdev, struct rdma_ah_attr *ah_attr) +{ + if (rdma_ah_get_sl(ah_attr) > 15) + return -EINVAL; + + if (rdma_ah_get_dlid(ah_attr) == 0) + return -EINVAL; + if (rdma_ah_get_dlid(ah_attr) >= + be16_to_cpu(IB_MULTICAST_LID_BASE) && + rdma_ah_get_dlid(ah_attr) != + be16_to_cpu(IB_LID_PERMISSIVE) && + !(rdma_ah_get_ah_flags(ah_attr) & IB_AH_GRH)) + return -EINVAL; + + return 0; +} + +static void qib_notify_new_ah(struct ib_device *ibdev, + struct rdma_ah_attr *ah_attr, + struct rvt_ah *ah) +{ + struct qib_ibport *ibp; + struct qib_pportdata *ppd; + + /* + * Do not trust reading anything from rvt_ah at this point as it is not + * done being setup. We can however modify things which we need to set. + */ + + ibp = to_iport(ibdev, rdma_ah_get_port_num(ah_attr)); + ppd = ppd_from_ibp(ibp); + ah->vl = ibp->sl_to_vl[rdma_ah_get_sl(&ah->attr)]; + ah->log_pmtu = ilog2(ppd->ibmtu); +} + +struct ib_ah *qib_create_qp0_ah(struct qib_ibport *ibp, u16 dlid) +{ + struct rdma_ah_attr attr; + struct ib_ah *ah = ERR_PTR(-EINVAL); + struct rvt_qp *qp0; + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + struct qib_devdata *dd = dd_from_ppd(ppd); + u32 port_num = ppd->port; + + memset(&attr, 0, sizeof(attr)); + attr.type = rdma_ah_find_type(&dd->verbs_dev.rdi.ibdev, port_num); + rdma_ah_set_dlid(&attr, dlid); + rdma_ah_set_port_num(&attr, port_num); + rcu_read_lock(); + qp0 = rcu_dereference(ibp->rvp.qp[0]); + if (qp0) + ah = rdma_create_ah(qp0->ibqp.pd, &attr, 0); + rcu_read_unlock(); + return ah; +} + +/** + * qib_get_npkeys - return the size of the PKEY table for context 0 + * @dd: the qlogic_ib device + */ +unsigned qib_get_npkeys(struct qib_devdata *dd) +{ + return ARRAY_SIZE(dd->rcd[0]->pkeys); +} + +/* + * Return the indexed PKEY from the port PKEY table. + * No need to validate rcd[ctxt]; the port is setup if we are here. + */ +unsigned qib_get_pkey(struct qib_ibport *ibp, unsigned index) +{ + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + struct qib_devdata *dd = ppd->dd; + unsigned ctxt = ppd->hw_pidx; + unsigned ret; + + /* dd->rcd null if mini_init or some init failures */ + if (!dd->rcd || index >= ARRAY_SIZE(dd->rcd[ctxt]->pkeys)) + ret = 0; + else + ret = dd->rcd[ctxt]->pkeys[index]; + + return ret; +} + +static void init_ibport(struct qib_pportdata *ppd) +{ + struct qib_verbs_counters cntrs; + struct qib_ibport *ibp = &ppd->ibport_data; + + spin_lock_init(&ibp->rvp.lock); + /* Set the prefix to the default value (see ch. 4.1.1) */ + ibp->rvp.gid_prefix = IB_DEFAULT_GID_PREFIX; + ibp->rvp.sm_lid = be16_to_cpu(IB_LID_PERMISSIVE); + ibp->rvp.port_cap_flags = IB_PORT_SYS_IMAGE_GUID_SUP | + IB_PORT_CLIENT_REG_SUP | IB_PORT_SL_MAP_SUP | + IB_PORT_TRAP_SUP | IB_PORT_AUTO_MIGR_SUP | + IB_PORT_DR_NOTICE_SUP | IB_PORT_CAP_MASK_NOTICE_SUP | + IB_PORT_OTHER_LOCAL_CHANGES_SUP; + if (ppd->dd->flags & QIB_HAS_LINK_LATENCY) + ibp->rvp.port_cap_flags |= IB_PORT_LINK_LATENCY_SUP; + ibp->rvp.pma_counter_select[0] = IB_PMA_PORT_XMIT_DATA; + ibp->rvp.pma_counter_select[1] = IB_PMA_PORT_RCV_DATA; + ibp->rvp.pma_counter_select[2] = IB_PMA_PORT_XMIT_PKTS; + ibp->rvp.pma_counter_select[3] = IB_PMA_PORT_RCV_PKTS; + ibp->rvp.pma_counter_select[4] = IB_PMA_PORT_XMIT_WAIT; + + /* Snapshot current HW counters to "clear" them. */ + qib_get_counters(ppd, &cntrs); + ibp->z_symbol_error_counter = cntrs.symbol_error_counter; + ibp->z_link_error_recovery_counter = + cntrs.link_error_recovery_counter; + ibp->z_link_downed_counter = cntrs.link_downed_counter; + ibp->z_port_rcv_errors = cntrs.port_rcv_errors; + ibp->z_port_rcv_remphys_errors = cntrs.port_rcv_remphys_errors; + ibp->z_port_xmit_discards = cntrs.port_xmit_discards; + ibp->z_port_xmit_data = cntrs.port_xmit_data; + ibp->z_port_rcv_data = cntrs.port_rcv_data; + ibp->z_port_xmit_packets = cntrs.port_xmit_packets; + ibp->z_port_rcv_packets = cntrs.port_rcv_packets; + ibp->z_local_link_integrity_errors = + cntrs.local_link_integrity_errors; + ibp->z_excessive_buffer_overrun_errors = + cntrs.excessive_buffer_overrun_errors; + ibp->z_vl15_dropped = cntrs.vl15_dropped; + RCU_INIT_POINTER(ibp->rvp.qp[0], NULL); + RCU_INIT_POINTER(ibp->rvp.qp[1], NULL); +} + +/** + * qib_fill_device_attr - Fill in rvt dev info device attributes. + * @dd: the device data structure + */ +static void qib_fill_device_attr(struct qib_devdata *dd) +{ + struct rvt_dev_info *rdi = &dd->verbs_dev.rdi; + + memset(&rdi->dparms.props, 0, sizeof(rdi->dparms.props)); + + rdi->dparms.props.max_pd = ib_qib_max_pds; + rdi->dparms.props.max_ah = ib_qib_max_ahs; + rdi->dparms.props.device_cap_flags = IB_DEVICE_BAD_PKEY_CNTR | + IB_DEVICE_BAD_QKEY_CNTR | IB_DEVICE_SHUTDOWN_PORT | + IB_DEVICE_SYS_IMAGE_GUID | IB_DEVICE_RC_RNR_NAK_GEN | + IB_DEVICE_PORT_ACTIVE_EVENT | IB_DEVICE_SRQ_RESIZE; + rdi->dparms.props.page_size_cap = PAGE_SIZE; + rdi->dparms.props.vendor_id = + QIB_SRC_OUI_1 << 16 | QIB_SRC_OUI_2 << 8 | QIB_SRC_OUI_3; + rdi->dparms.props.vendor_part_id = dd->deviceid; + rdi->dparms.props.hw_ver = dd->minrev; + rdi->dparms.props.sys_image_guid = ib_qib_sys_image_guid; + rdi->dparms.props.max_mr_size = ~0ULL; + rdi->dparms.props.max_qp = ib_qib_max_qps; + rdi->dparms.props.max_qp_wr = ib_qib_max_qp_wrs; + rdi->dparms.props.max_send_sge = ib_qib_max_sges; + rdi->dparms.props.max_recv_sge = ib_qib_max_sges; + rdi->dparms.props.max_sge_rd = ib_qib_max_sges; + rdi->dparms.props.max_cq = ib_qib_max_cqs; + rdi->dparms.props.max_cqe = ib_qib_max_cqes; + rdi->dparms.props.max_ah = ib_qib_max_ahs; + rdi->dparms.props.max_qp_rd_atom = QIB_MAX_RDMA_ATOMIC; + rdi->dparms.props.max_qp_init_rd_atom = 255; + rdi->dparms.props.max_srq = ib_qib_max_srqs; + rdi->dparms.props.max_srq_wr = ib_qib_max_srq_wrs; + rdi->dparms.props.max_srq_sge = ib_qib_max_srq_sges; + rdi->dparms.props.atomic_cap = IB_ATOMIC_GLOB; + rdi->dparms.props.max_pkeys = qib_get_npkeys(dd); + rdi->dparms.props.max_mcast_grp = ib_qib_max_mcast_grps; + rdi->dparms.props.max_mcast_qp_attach = ib_qib_max_mcast_qp_attached; + rdi->dparms.props.max_total_mcast_qp_attach = + rdi->dparms.props.max_mcast_qp_attach * + rdi->dparms.props.max_mcast_grp; + /* post send table */ + dd->verbs_dev.rdi.post_parms = qib_post_parms; + + /* opcode translation table */ + dd->verbs_dev.rdi.wc_opcode = ib_qib_wc_opcode; +} + +static const struct ib_device_ops qib_dev_ops = { + .owner = THIS_MODULE, + .driver_id = RDMA_DRIVER_QIB, + + .port_groups = qib_attr_port_groups, + .device_group = &qib_attr_group, + .modify_device = qib_modify_device, + .process_mad = qib_process_mad, +}; + +/** + * qib_register_ib_device - register our device with the infiniband core + * @dd: the device data structure + * Return the allocated qib_ibdev pointer or NULL on error. + */ +int qib_register_ib_device(struct qib_devdata *dd) +{ + struct qib_ibdev *dev = &dd->verbs_dev; + struct ib_device *ibdev = &dev->rdi.ibdev; + struct qib_pportdata *ppd = dd->pport; + unsigned i, ctxt; + int ret; + + for (i = 0; i < dd->num_pports; i++) + init_ibport(ppd + i); + + /* Only need to initialize non-zero fields. */ + timer_setup(&dev->mem_timer, mem_timer, 0); + + INIT_LIST_HEAD(&dev->piowait); + INIT_LIST_HEAD(&dev->dmawait); + INIT_LIST_HEAD(&dev->txwait); + INIT_LIST_HEAD(&dev->memwait); + INIT_LIST_HEAD(&dev->txreq_free); + + if (ppd->sdma_descq_cnt) { + dev->pio_hdrs = dma_alloc_coherent(&dd->pcidev->dev, + ppd->sdma_descq_cnt * + sizeof(struct qib_pio_header), + &dev->pio_hdrs_phys, + GFP_KERNEL); + if (!dev->pio_hdrs) { + ret = -ENOMEM; + goto err_hdrs; + } + } + + for (i = 0; i < ppd->sdma_descq_cnt; i++) { + struct qib_verbs_txreq *tx; + + tx = kzalloc(sizeof(*tx), GFP_KERNEL); + if (!tx) { + ret = -ENOMEM; + goto err_tx; + } + tx->hdr_inx = i; + list_add(&tx->txreq.list, &dev->txreq_free); + } + + /* + * The system image GUID is supposed to be the same for all + * IB HCAs in a single system but since there can be other + * device types in the system, we can't be sure this is unique. + */ + if (!ib_qib_sys_image_guid) + ib_qib_sys_image_guid = ppd->guid; + + ibdev->node_guid = ppd->guid; + ibdev->phys_port_cnt = dd->num_pports; + ibdev->dev.parent = &dd->pcidev->dev; + + snprintf(ibdev->node_desc, sizeof(ibdev->node_desc), + "Intel Infiniband HCA %s", init_utsname()->nodename); + + /* + * Fill in rvt info object. + */ + dd->verbs_dev.rdi.driver_f.get_pci_dev = qib_get_pci_dev; + dd->verbs_dev.rdi.driver_f.check_ah = qib_check_ah; + dd->verbs_dev.rdi.driver_f.setup_wqe = qib_check_send_wqe; + dd->verbs_dev.rdi.driver_f.notify_new_ah = qib_notify_new_ah; + dd->verbs_dev.rdi.driver_f.alloc_qpn = qib_alloc_qpn; + dd->verbs_dev.rdi.driver_f.qp_priv_alloc = qib_qp_priv_alloc; + dd->verbs_dev.rdi.driver_f.qp_priv_free = qib_qp_priv_free; + dd->verbs_dev.rdi.driver_f.free_all_qps = qib_free_all_qps; + dd->verbs_dev.rdi.driver_f.notify_qp_reset = qib_notify_qp_reset; + dd->verbs_dev.rdi.driver_f.do_send = qib_do_send; + dd->verbs_dev.rdi.driver_f.schedule_send = qib_schedule_send; + dd->verbs_dev.rdi.driver_f.quiesce_qp = qib_quiesce_qp; + dd->verbs_dev.rdi.driver_f.stop_send_queue = qib_stop_send_queue; + dd->verbs_dev.rdi.driver_f.flush_qp_waiters = qib_flush_qp_waiters; + dd->verbs_dev.rdi.driver_f.notify_error_qp = qib_notify_error_qp; + dd->verbs_dev.rdi.driver_f.notify_restart_rc = qib_restart_rc; + dd->verbs_dev.rdi.driver_f.mtu_to_path_mtu = qib_mtu_to_path_mtu; + dd->verbs_dev.rdi.driver_f.mtu_from_qp = qib_mtu_from_qp; + dd->verbs_dev.rdi.driver_f.get_pmtu_from_attr = qib_get_pmtu_from_attr; + dd->verbs_dev.rdi.driver_f.schedule_send_no_lock = _qib_schedule_send; + dd->verbs_dev.rdi.driver_f.query_port_state = qib_query_port; + dd->verbs_dev.rdi.driver_f.shut_down_port = qib_shut_down_port; + dd->verbs_dev.rdi.driver_f.cap_mask_chg = qib_cap_mask_chg; + dd->verbs_dev.rdi.driver_f.notify_create_mad_agent = + qib_notify_create_mad_agent; + dd->verbs_dev.rdi.driver_f.notify_free_mad_agent = + qib_notify_free_mad_agent; + + dd->verbs_dev.rdi.dparms.max_rdma_atomic = QIB_MAX_RDMA_ATOMIC; + dd->verbs_dev.rdi.driver_f.get_guid_be = qib_get_guid_be; + dd->verbs_dev.rdi.dparms.lkey_table_size = qib_lkey_table_size; + dd->verbs_dev.rdi.dparms.qp_table_size = ib_qib_qp_table_size; + dd->verbs_dev.rdi.dparms.qpn_start = 1; + dd->verbs_dev.rdi.dparms.qpn_res_start = QIB_KD_QP; + dd->verbs_dev.rdi.dparms.qpn_res_end = QIB_KD_QP; /* Reserve one QP */ + dd->verbs_dev.rdi.dparms.qpn_inc = 1; + dd->verbs_dev.rdi.dparms.qos_shift = 1; + dd->verbs_dev.rdi.dparms.psn_mask = QIB_PSN_MASK; + dd->verbs_dev.rdi.dparms.psn_shift = QIB_PSN_SHIFT; + dd->verbs_dev.rdi.dparms.psn_modify_mask = QIB_PSN_MASK; + dd->verbs_dev.rdi.dparms.nports = dd->num_pports; + dd->verbs_dev.rdi.dparms.npkeys = qib_get_npkeys(dd); + dd->verbs_dev.rdi.dparms.node = dd->assigned_node_id; + dd->verbs_dev.rdi.dparms.core_cap_flags = RDMA_CORE_PORT_IBA_IB; + dd->verbs_dev.rdi.dparms.max_mad_size = IB_MGMT_MAD_SIZE; + dd->verbs_dev.rdi.dparms.sge_copy_mode = RVT_SGE_COPY_MEMCPY; + + qib_fill_device_attr(dd); + + ppd = dd->pport; + for (i = 0; i < dd->num_pports; i++, ppd++) { + ctxt = ppd->hw_pidx; + rvt_init_port(&dd->verbs_dev.rdi, + &ppd->ibport_data.rvp, + i, + dd->rcd[ctxt]->pkeys); + } + + ib_set_device_ops(ibdev, &qib_dev_ops); + ret = rvt_register_device(&dd->verbs_dev.rdi); + if (ret) + goto err_tx; + + return ret; + +err_tx: + while (!list_empty(&dev->txreq_free)) { + struct list_head *l = dev->txreq_free.next; + struct qib_verbs_txreq *tx; + + list_del(l); + tx = list_entry(l, struct qib_verbs_txreq, txreq.list); + kfree(tx); + } + if (ppd->sdma_descq_cnt) + dma_free_coherent(&dd->pcidev->dev, + ppd->sdma_descq_cnt * + sizeof(struct qib_pio_header), + dev->pio_hdrs, dev->pio_hdrs_phys); +err_hdrs: + qib_dev_err(dd, "cannot register verbs: %d!\n", -ret); + return ret; +} + +void qib_unregister_ib_device(struct qib_devdata *dd) +{ + struct qib_ibdev *dev = &dd->verbs_dev; + + rvt_unregister_device(&dd->verbs_dev.rdi); + + if (!list_empty(&dev->piowait)) + qib_dev_err(dd, "piowait list not empty!\n"); + if (!list_empty(&dev->dmawait)) + qib_dev_err(dd, "dmawait list not empty!\n"); + if (!list_empty(&dev->txwait)) + qib_dev_err(dd, "txwait list not empty!\n"); + if (!list_empty(&dev->memwait)) + qib_dev_err(dd, "memwait list not empty!\n"); + + del_timer_sync(&dev->mem_timer); + while (!list_empty(&dev->txreq_free)) { + struct list_head *l = dev->txreq_free.next; + struct qib_verbs_txreq *tx; + + list_del(l); + tx = list_entry(l, struct qib_verbs_txreq, txreq.list); + kfree(tx); + } + if (dd->pport->sdma_descq_cnt) + dma_free_coherent(&dd->pcidev->dev, + dd->pport->sdma_descq_cnt * + sizeof(struct qib_pio_header), + dev->pio_hdrs, dev->pio_hdrs_phys); +} + +/** + * _qib_schedule_send - schedule progress + * @qp: the qp + * + * This schedules progress w/o regard to the s_flags. + * + * It is only used in post send, which doesn't hold + * the s_lock. + */ +bool _qib_schedule_send(struct rvt_qp *qp) +{ + struct qib_ibport *ibp = + to_iport(qp->ibqp.device, qp->port_num); + struct qib_pportdata *ppd = ppd_from_ibp(ibp); + struct qib_qp_priv *priv = qp->priv; + + return queue_work(ppd->qib_wq, &priv->s_work); +} + +/** + * qib_schedule_send - schedule progress + * @qp: the qp + * + * This schedules qp progress. The s_lock + * should be held. + */ +bool qib_schedule_send(struct rvt_qp *qp) +{ + if (qib_send_ok(qp)) + return _qib_schedule_send(qp); + return false; +} diff --git a/drivers/infiniband/hw/qib/qib_verbs.h b/drivers/infiniband/hw/qib/qib_verbs.h new file mode 100644 index 000000000..07548fac1 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_verbs.h @@ -0,0 +1,402 @@ +/* + * Copyright (c) 2012 - 2018 Intel Corporation. All rights reserved. + * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. + * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef QIB_VERBS_H +#define QIB_VERBS_H + +#include <linux/types.h> +#include <linux/spinlock.h> +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/kref.h> +#include <linux/workqueue.h> +#include <linux/kthread.h> +#include <linux/completion.h> +#include <rdma/ib_pack.h> +#include <rdma/ib_user_verbs.h> +#include <rdma/ib_hdrs.h> +#include <rdma/rdmavt_qp.h> +#include <rdma/rdmavt_cq.h> + +struct qib_ctxtdata; +struct qib_pportdata; +struct qib_devdata; +struct qib_verbs_txreq; + +#define QIB_MAX_RDMA_ATOMIC 16 +#define QIB_GUIDS_PER_PORT 5 +#define QIB_PSN_SHIFT 8 + +/* + * Increment this value if any changes that break userspace ABI + * compatibility are made. + */ +#define QIB_UVERBS_ABI_VERSION 2 + +/* IB Performance Manager status values */ +#define IB_PMA_SAMPLE_STATUS_DONE 0x00 +#define IB_PMA_SAMPLE_STATUS_STARTED 0x01 +#define IB_PMA_SAMPLE_STATUS_RUNNING 0x02 + +/* Mandatory IB performance counter select values. */ +#define IB_PMA_PORT_XMIT_DATA cpu_to_be16(0x0001) +#define IB_PMA_PORT_RCV_DATA cpu_to_be16(0x0002) +#define IB_PMA_PORT_XMIT_PKTS cpu_to_be16(0x0003) +#define IB_PMA_PORT_RCV_PKTS cpu_to_be16(0x0004) +#define IB_PMA_PORT_XMIT_WAIT cpu_to_be16(0x0005) + +#define QIB_VENDOR_IPG cpu_to_be16(0xFFA0) + +#define IB_DEFAULT_GID_PREFIX cpu_to_be64(0xfe80000000000000ULL) + +/* Values for set/get portinfo VLCap OperationalVLs */ +#define IB_VL_VL0 1 +#define IB_VL_VL0_1 2 +#define IB_VL_VL0_3 3 +#define IB_VL_VL0_7 4 +#define IB_VL_VL0_14 5 + +static inline int qib_num_vls(int vls) +{ + switch (vls) { + default: + case IB_VL_VL0: + return 1; + case IB_VL_VL0_1: + return 2; + case IB_VL_VL0_3: + return 4; + case IB_VL_VL0_7: + return 8; + case IB_VL_VL0_14: + return 15; + } +} + +struct qib_pio_header { + __le32 pbc[2]; + struct ib_header hdr; +} __packed; + +/* + * qib specific data structure that will be hidden from rvt after the queue pair + * is made common. + */ +struct qib_qp_priv { + struct ib_header *s_hdr; /* next packet header to send */ + struct list_head iowait; /* link for wait PIO buf */ + atomic_t s_dma_busy; + struct qib_verbs_txreq *s_tx; + struct work_struct s_work; + wait_queue_head_t wait_dma; + struct rvt_qp *owner; +}; + +#define QIB_PSN_CREDIT 16 + +struct qib_opcode_stats { + u64 n_packets; /* number of packets */ + u64 n_bytes; /* total number of bytes */ +}; + +struct qib_opcode_stats_perctx { + struct qib_opcode_stats stats[128]; +}; + +struct qib_pma_counters { + u64 n_unicast_xmit; /* total unicast packets sent */ + u64 n_unicast_rcv; /* total unicast packets received */ + u64 n_multicast_xmit; /* total multicast packets sent */ + u64 n_multicast_rcv; /* total multicast packets received */ +}; + +struct qib_ibport { + struct rvt_ibport rvp; + struct rvt_ah *smi_ah; + __be64 guids[QIB_GUIDS_PER_PORT - 1]; /* writable GUIDs */ + struct qib_pma_counters __percpu *pmastats; + u64 z_unicast_xmit; /* starting count for PMA */ + u64 z_unicast_rcv; /* starting count for PMA */ + u64 z_multicast_xmit; /* starting count for PMA */ + u64 z_multicast_rcv; /* starting count for PMA */ + u64 z_symbol_error_counter; /* starting count for PMA */ + u64 z_link_error_recovery_counter; /* starting count for PMA */ + u64 z_link_downed_counter; /* starting count for PMA */ + u64 z_port_rcv_errors; /* starting count for PMA */ + u64 z_port_rcv_remphys_errors; /* starting count for PMA */ + u64 z_port_xmit_discards; /* starting count for PMA */ + u64 z_port_xmit_data; /* starting count for PMA */ + u64 z_port_rcv_data; /* starting count for PMA */ + u64 z_port_xmit_packets; /* starting count for PMA */ + u64 z_port_rcv_packets; /* starting count for PMA */ + u32 z_local_link_integrity_errors; /* starting count for PMA */ + u32 z_excessive_buffer_overrun_errors; /* starting count for PMA */ + u32 z_vl15_dropped; /* starting count for PMA */ + u8 sl_to_vl[16]; +}; + +struct qib_ibdev { + struct rvt_dev_info rdi; + + struct list_head piowait; /* list for wait PIO buf */ + struct list_head dmawait; /* list for wait DMA */ + struct list_head txwait; /* list for wait qib_verbs_txreq */ + struct list_head memwait; /* list for wait kernel memory */ + struct list_head txreq_free; + struct timer_list mem_timer; + struct qib_pio_header *pio_hdrs; + dma_addr_t pio_hdrs_phys; + + u32 n_piowait; + u32 n_txwait; + +#ifdef CONFIG_DEBUG_FS + /* per HCA debugfs */ + struct dentry *qib_ibdev_dbg; +#endif +}; + +struct qib_verbs_counters { + u64 symbol_error_counter; + u64 link_error_recovery_counter; + u64 link_downed_counter; + u64 port_rcv_errors; + u64 port_rcv_remphys_errors; + u64 port_xmit_discards; + u64 port_xmit_data; + u64 port_rcv_data; + u64 port_xmit_packets; + u64 port_rcv_packets; + u32 local_link_integrity_errors; + u32 excessive_buffer_overrun_errors; + u32 vl15_dropped; +}; + +static inline struct qib_ibdev *to_idev(struct ib_device *ibdev) +{ + struct rvt_dev_info *rdi; + + rdi = container_of(ibdev, struct rvt_dev_info, ibdev); + return container_of(rdi, struct qib_ibdev, rdi); +} + +/* + * Send if not busy or waiting for I/O and either + * a RC response is pending or we can process send work requests. + */ +static inline int qib_send_ok(struct rvt_qp *qp) +{ + return !(qp->s_flags & (RVT_S_BUSY | RVT_S_ANY_WAIT_IO)) && + (qp->s_hdrwords || (qp->s_flags & RVT_S_RESP_PENDING) || + !(qp->s_flags & RVT_S_ANY_WAIT_SEND)); +} + +bool _qib_schedule_send(struct rvt_qp *qp); +bool qib_schedule_send(struct rvt_qp *qp); + +static inline int qib_pkey_ok(u16 pkey1, u16 pkey2) +{ + u16 p1 = pkey1 & 0x7FFF; + u16 p2 = pkey2 & 0x7FFF; + + /* + * Low 15 bits must be non-zero and match, and + * one of the two must be a full member. + */ + return p1 && p1 == p2 && ((__s16)pkey1 < 0 || (__s16)pkey2 < 0); +} + +void qib_bad_pkey(struct qib_ibport *ibp, u32 key, u32 sl, + u32 qp1, u32 qp2, __be16 lid1, __be16 lid2); +void qib_cap_mask_chg(struct rvt_dev_info *rdi, u32 port_num); +void qib_sys_guid_chg(struct qib_ibport *ibp); +void qib_node_desc_chg(struct qib_ibport *ibp); +int qib_process_mad(struct ib_device *ibdev, int mad_flags, u32 port_num, + const struct ib_wc *in_wc, const struct ib_grh *in_grh, + const struct ib_mad *in, struct ib_mad *out, + size_t *out_mad_size, u16 *out_mad_pkey_index); +void qib_notify_create_mad_agent(struct rvt_dev_info *rdi, int port_idx); +void qib_notify_free_mad_agent(struct rvt_dev_info *rdi, int port_idx); + +/* + * Compare the lower 24 bits of the two values. + * Returns an integer <, ==, or > than zero. + */ +static inline int qib_cmp24(u32 a, u32 b) +{ + return (((int) a) - ((int) b)) << 8; +} + +int qib_snapshot_counters(struct qib_pportdata *ppd, u64 *swords, + u64 *rwords, u64 *spkts, u64 *rpkts, + u64 *xmit_wait); + +int qib_get_counters(struct qib_pportdata *ppd, + struct qib_verbs_counters *cntrs); + +/* + * Functions provided by qib driver for rdmavt to use + */ +unsigned qib_free_all_qps(struct rvt_dev_info *rdi); +void *qib_qp_priv_alloc(struct rvt_dev_info *rdi, struct rvt_qp *qp); +void qib_qp_priv_free(struct rvt_dev_info *rdi, struct rvt_qp *qp); +void qib_notify_qp_reset(struct rvt_qp *qp); +int qib_alloc_qpn(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt, + enum ib_qp_type type, u32 port); +void qib_restart_rc(struct rvt_qp *qp, u32 psn, int wait); +#ifdef CONFIG_DEBUG_FS + +void qib_qp_iter_print(struct seq_file *s, struct rvt_qp_iter *iter); + +#endif + +unsigned qib_pkt_delay(u32 plen, u8 snd_mult, u8 rcv_mult); + +void qib_verbs_sdma_desc_avail(struct qib_pportdata *ppd, unsigned avail); + +void qib_put_txreq(struct qib_verbs_txreq *tx); + +int qib_verbs_send(struct rvt_qp *qp, struct ib_header *hdr, + u32 hdrwords, struct rvt_sge_state *ss, u32 len); + +void qib_uc_rcv(struct qib_ibport *ibp, struct ib_header *hdr, + int has_grh, void *data, u32 tlen, struct rvt_qp *qp); + +void qib_rc_rcv(struct qib_ctxtdata *rcd, struct ib_header *hdr, + int has_grh, void *data, u32 tlen, struct rvt_qp *qp); + +int qib_check_ah(struct ib_device *ibdev, struct rdma_ah_attr *ah_attr); + +int qib_check_send_wqe(struct rvt_qp *qp, struct rvt_swqe *wqe, + bool *call_send); + +struct ib_ah *qib_create_qp0_ah(struct qib_ibport *ibp, u16 dlid); + +void qib_rc_rnr_retry(unsigned long arg); + +void qib_rc_send_complete(struct rvt_qp *qp, struct ib_header *hdr); + +int qib_post_ud_send(struct rvt_qp *qp, const struct ib_send_wr *wr); + +void qib_ud_rcv(struct qib_ibport *ibp, struct ib_header *hdr, + int has_grh, void *data, u32 tlen, struct rvt_qp *qp); + +void mr_rcu_callback(struct rcu_head *list); + +void qib_migrate_qp(struct rvt_qp *qp); + +int qib_ruc_check_hdr(struct qib_ibport *ibp, struct ib_header *hdr, + int has_grh, struct rvt_qp *qp, u32 bth0); + +u32 qib_make_grh(struct qib_ibport *ibp, struct ib_grh *hdr, + const struct ib_global_route *grh, u32 hwords, u32 nwords); + +void qib_make_ruc_header(struct rvt_qp *qp, struct ib_other_headers *ohdr, + u32 bth0, u32 bth2); + +void _qib_do_send(struct work_struct *work); + +void qib_do_send(struct rvt_qp *qp); + +void qib_send_rc_ack(struct rvt_qp *qp); + +int qib_make_rc_req(struct rvt_qp *qp, unsigned long *flags); + +int qib_make_uc_req(struct rvt_qp *qp, unsigned long *flags); + +int qib_make_ud_req(struct rvt_qp *qp, unsigned long *flags); + +int qib_register_ib_device(struct qib_devdata *); + +void qib_unregister_ib_device(struct qib_devdata *); + +void qib_ib_rcv(struct qib_ctxtdata *, void *, void *, u32); + +void qib_ib_piobufavail(struct qib_devdata *); + +unsigned qib_get_npkeys(struct qib_devdata *); + +unsigned qib_get_pkey(struct qib_ibport *, unsigned); + +extern const enum ib_wc_opcode ib_qib_wc_opcode[]; + +/* + * Below HCA-independent IB PhysPortState values, returned + * by the f_ibphys_portstate() routine. + */ +#define IB_PHYSPORTSTATE_SLEEP 1 +#define IB_PHYSPORTSTATE_POLL 2 +#define IB_PHYSPORTSTATE_DISABLED 3 +#define IB_PHYSPORTSTATE_CFG_TRAIN 4 +#define IB_PHYSPORTSTATE_LINKUP 5 +#define IB_PHYSPORTSTATE_LINK_ERR_RECOVER 6 +#define IB_PHYSPORTSTATE_CFG_DEBOUNCE 8 +#define IB_PHYSPORTSTATE_CFG_IDLE 0xB +#define IB_PHYSPORTSTATE_RECOVERY_RETRAIN 0xC +#define IB_PHYSPORTSTATE_RECOVERY_WAITRMT 0xE +#define IB_PHYSPORTSTATE_RECOVERY_IDLE 0xF +#define IB_PHYSPORTSTATE_CFG_ENH 0x10 +#define IB_PHYSPORTSTATE_CFG_WAIT_ENH 0x13 + +extern const int ib_rvt_state_ops[]; + +extern __be64 ib_qib_sys_image_guid; /* in network order */ + +extern unsigned int ib_rvt_lkey_table_size; + +extern unsigned int ib_qib_max_cqes; + +extern unsigned int ib_qib_max_cqs; + +extern unsigned int ib_qib_max_qp_wrs; + +extern unsigned int ib_qib_max_qps; + +extern unsigned int ib_qib_max_sges; + +extern unsigned int ib_qib_max_mcast_grps; + +extern unsigned int ib_qib_max_mcast_qp_attached; + +extern unsigned int ib_qib_max_srqs; + +extern unsigned int ib_qib_max_srq_sges; + +extern unsigned int ib_qib_max_srq_wrs; + +extern const u32 ib_qib_rnr_table[]; + +extern const struct rvt_operation_params qib_post_parms[]; + +#endif /* QIB_VERBS_H */ diff --git a/drivers/infiniband/hw/qib/qib_wc_ppc64.c b/drivers/infiniband/hw/qib/qib_wc_ppc64.c new file mode 100644 index 000000000..673cf4c22 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_wc_ppc64.c @@ -0,0 +1,62 @@ +/* + * Copyright (c) 2006, 2007, 2008 QLogic Corporation. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +/* + * This file is conditionally built on PowerPC only. Otherwise weak symbol + * versions of the functions exported from here are used. + */ + +#include "qib.h" + +/** + * qib_enable_wc - enable write combining for MMIO writes to the device + * @dd: qlogic_ib device + * + * Nothing to do on PowerPC, so just return without error. + */ +int qib_enable_wc(struct qib_devdata *dd) +{ + return 0; +} + +/** + * qib_unordered_wc - indicate whether write combining is unordered + * + * Because our performance depends on our ability to do write + * combining mmio writes in the most efficient way, we need to + * know if we are on a processor that may reorder stores when + * write combining. + */ +int qib_unordered_wc(void) +{ + return 1; +} diff --git a/drivers/infiniband/hw/qib/qib_wc_x86_64.c b/drivers/infiniband/hw/qib/qib_wc_x86_64.c new file mode 100644 index 000000000..edd0ddbd4 --- /dev/null +++ b/drivers/infiniband/hw/qib/qib_wc_x86_64.c @@ -0,0 +1,150 @@ +/* + * Copyright (c) 2012 Intel Corporation. All rights reserved. + * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +/* + * This file is conditionally built on x86_64 only. Otherwise weak symbol + * versions of the functions exported from here are used. + */ + +#include <linux/pci.h> +#include <asm/mtrr.h> +#include <asm/processor.h> + +#include "qib.h" + +/** + * qib_enable_wc - enable write combining for MMIO writes to the device + * @dd: qlogic_ib device + * + * This routine is x86_64-specific; it twiddles the CPU's MTRRs to enable + * write combining. + */ +int qib_enable_wc(struct qib_devdata *dd) +{ + int ret = 0; + u64 pioaddr, piolen; + unsigned bits; + const unsigned long addr = pci_resource_start(dd->pcidev, 0); + const size_t len = pci_resource_len(dd->pcidev, 0); + + /* + * Set the PIO buffers to be WCCOMB, so we get HT bursts to the + * chip. Linux (possibly the hardware) requires it to be on a power + * of 2 address matching the length (which has to be a power of 2). + * For rev1, that means the base address, for rev2, it will be just + * the PIO buffers themselves. + * For chips with two sets of buffers, the calculations are + * somewhat more complicated; we need to sum, and the piobufbase + * register has both offsets, 2K in low 32 bits, 4K in high 32 bits. + * The buffers are still packed, so a single range covers both. + */ + if (dd->piobcnt2k && dd->piobcnt4k) { + /* 2 sizes for chip */ + unsigned long pio2kbase, pio4kbase; + + pio2kbase = dd->piobufbase & 0xffffffffUL; + pio4kbase = (dd->piobufbase >> 32) & 0xffffffffUL; + if (pio2kbase < pio4kbase) { + /* all current chips */ + pioaddr = addr + pio2kbase; + piolen = pio4kbase - pio2kbase + + dd->piobcnt4k * dd->align4k; + } else { + pioaddr = addr + pio4kbase; + piolen = pio2kbase - pio4kbase + + dd->piobcnt2k * dd->palign; + } + } else { /* single buffer size (2K, currently) */ + pioaddr = addr + dd->piobufbase; + piolen = dd->piobcnt2k * dd->palign + + dd->piobcnt4k * dd->align4k; + } + + for (bits = 0; !(piolen & (1ULL << bits)); bits++) + ; /* do nothing */ + + if (piolen != (1ULL << bits)) { + piolen >>= bits; + while (piolen >>= 1) + bits++; + piolen = 1ULL << (bits + 1); + } + if (pioaddr & (piolen - 1)) { + u64 atmp = pioaddr & ~(piolen - 1); + + if (atmp < addr || (atmp + piolen) > (addr + len)) { + qib_dev_err(dd, + "No way to align address/size (%llx/%llx), no WC mtrr\n", + (unsigned long long) atmp, + (unsigned long long) piolen << 1); + ret = -ENODEV; + } else { + pioaddr = atmp; + piolen <<= 1; + } + } + + if (!ret) { + dd->wc_cookie = arch_phys_wc_add(pioaddr, piolen); + if (dd->wc_cookie < 0) + /* use error from routine */ + ret = dd->wc_cookie; + } + + return ret; +} + +/** + * qib_disable_wc - disable write combining for MMIO writes to the device + * @dd: qlogic_ib device + */ +void qib_disable_wc(struct qib_devdata *dd) +{ + arch_phys_wc_del(dd->wc_cookie); +} + +/** + * qib_unordered_wc - indicate whether write combining is ordered + * + * Because our performance depends on our ability to do write combining mmio + * writes in the most efficient way, we need to know if we are on an Intel + * or AMD x86_64 processor. AMD x86_64 processors flush WC buffers out in + * the order completed, and so no special flushing is required to get + * correct ordering. Intel processors, however, will flush write buffers + * out in "random" orders, and so explicit ordering is needed at times. + */ +int qib_unordered_wc(void) +{ + return boot_cpu_data.x86_vendor != X86_VENDOR_AMD; +} |