Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 478 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/hfi1/mad.h b/drivers/infiniband/hw/hfi1/mad.h
new file mode 100644
index 000000000..2f48e6953
--- /dev/null
+++ b/drivers/infiniband/hw/hfi1/mad.h
@@ -0,0 +1,478 @@
+/*
+ * Copyright(c) 2015 - 2017 Intel Corporation.
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * BSD LICENSE
+ *
+ * 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.
+ *  - Neither the name of Intel Corporation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+#ifndef _HFI1_MAD_H
+#define _HFI1_MAD_H
+
+#include <rdma/ib_pma.h>
+#include <rdma/opa_smi.h>
+#include <rdma/opa_port_info.h>
+#include "opa_compat.h"
+
+/*
+ * OPA Traps
+ */
+#define OPA_TRAP_GID_NOW_IN_SERVICE             cpu_to_be16(64)
+#define OPA_TRAP_GID_OUT_OF_SERVICE             cpu_to_be16(65)
+#define OPA_TRAP_ADD_MULTICAST_GROUP            cpu_to_be16(66)
+#define OPA_TRAL_DEL_MULTICAST_GROUP            cpu_to_be16(67)
+#define OPA_TRAP_UNPATH                         cpu_to_be16(68)
+#define OPA_TRAP_REPATH                         cpu_to_be16(69)
+#define OPA_TRAP_PORT_CHANGE_STATE              cpu_to_be16(128)
+#define OPA_TRAP_LINK_INTEGRITY                 cpu_to_be16(129)
+#define OPA_TRAP_EXCESSIVE_BUFFER_OVERRUN       cpu_to_be16(130)
+#define OPA_TRAP_FLOW_WATCHDOG                  cpu_to_be16(131)
+#define OPA_TRAP_CHANGE_CAPABILITY              cpu_to_be16(144)
+#define OPA_TRAP_CHANGE_SYSGUID                 cpu_to_be16(145)
+#define OPA_TRAP_BAD_M_KEY                      cpu_to_be16(256)
+#define OPA_TRAP_BAD_P_KEY                      cpu_to_be16(257)
+#define OPA_TRAP_BAD_Q_KEY                      cpu_to_be16(258)
+#define OPA_TRAP_SWITCH_BAD_PKEY                cpu_to_be16(259)
+#define OPA_SMA_TRAP_DATA_LINK_WIDTH            cpu_to_be16(2048)
+
+/*
+ * Generic trap/notice other local changes flags (trap 144).
+ */
+#define	OPA_NOTICE_TRAP_LWDE_CHG        0x08 /* Link Width Downgrade Enable
+					      * changed
+					      */
+#define OPA_NOTICE_TRAP_LSE_CHG         0x04 /* Link Speed Enable changed */
+#define OPA_NOTICE_TRAP_LWE_CHG         0x02 /* Link Width Enable changed */
+#define OPA_NOTICE_TRAP_NODE_DESC_CHG   0x01
+
+struct opa_mad_notice_attr {
+	u8 generic_type;
+	u8 prod_type_msb;
+	__be16 prod_type_lsb;
+	__be16 trap_num;
+	__be16 toggle_count;
+	__be32 issuer_lid;
+	__be32 reserved1;
+	union ib_gid issuer_gid;
+
+	union {
+		struct {
+			u8	details[64];
+		} raw_data;
+
+		struct {
+			union ib_gid	gid;
+		} __packed ntc_64_65_66_67;
+
+		struct {
+			__be32	lid;
+		} __packed ntc_128;
+
+		struct {
+			__be32	lid;		/* where violation happened */
+			u8	port_num;	/* where violation happened */
+		} __packed ntc_129_130_131;
+
+		struct {
+			__be32	lid;		/* LID where change occurred */
+			__be32	new_cap_mask;	/* new capability mask */
+			__be16	reserved2;
+			__be16	cap_mask3;
+			__be16	change_flags;	/* low 4 bits only */
+		} __packed ntc_144;
+
+		struct {
+			__be64	new_sys_guid;
+			__be32	lid;		/* lid where sys guid changed */
+		} __packed ntc_145;
+
+		struct {
+			__be32	lid;
+			__be32	dr_slid;
+			u8	method;
+			u8	dr_trunc_hop;
+			__be16	attr_id;
+			__be32	attr_mod;
+			__be64	mkey;
+			u8	dr_rtn_path[30];
+		} __packed ntc_256;
+
+		struct {
+			__be32		lid1;
+			__be32		lid2;
+			__be32		key;
+			u8		sl;	/* SL: high 5 bits */
+			u8		reserved3[3];
+			union ib_gid	gid1;
+			union ib_gid	gid2;
+			__be32		qp1;	/* high 8 bits reserved */
+			__be32		qp2;	/* high 8 bits reserved */
+		} __packed ntc_257_258;
+
+		struct {
+			__be16		flags;	/* low 8 bits reserved */
+			__be16		pkey;
+			__be32		lid1;
+			__be32		lid2;
+			u8		sl;	/* SL: high 5 bits */
+			u8		reserved4[3];
+			union ib_gid	gid1;
+			union ib_gid	gid2;
+			__be32		qp1;	/* high 8 bits reserved */
+			__be32		qp2;	/* high 8 bits reserved */
+		} __packed ntc_259;
+
+		struct {
+			__be32	lid;
+		} __packed ntc_2048;
+
+	};
+	u8	class_data[0];
+};
+
+#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 OPA_MAX_PREEMPT_CAP         32
+#define OPA_VLARB_LOW_ELEMENTS       0
+#define OPA_VLARB_HIGH_ELEMENTS      1
+#define OPA_VLARB_PREEMPT_ELEMENTS   2
+#define OPA_VLARB_PREEMPT_MATRIX     3
+
+#define IB_PMA_PORT_COUNTERS_CONG       cpu_to_be16(0xFF00)
+#define LINK_SPEED_25G		1
+#define LINK_SPEED_12_5G	2
+#define LINK_WIDTH_DEFAULT	4
+#define DECIMAL_FACTORING	1000
+/*
+ * The default link width is multiplied by 1000
+ * to get accurate value after division.
+ */
+#define FACTOR_LINK_WIDTH	(LINK_WIDTH_DEFAULT * DECIMAL_FACTORING)
+
+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_SMP_UNSUP_VERSION    cpu_to_be16(0x0004)
+#define IB_SMP_UNSUP_METHOD     cpu_to_be16(0x0008)
+#define IB_SMP_UNSUP_METH_ATTR  cpu_to_be16(0x000C)
+#define IB_SMP_INVALID_FIELD    cpu_to_be16(0x001C)
+
+#define OPA_MAX_PREEMPT_CAP         32
+#define OPA_VLARB_LOW_ELEMENTS       0
+#define OPA_VLARB_HIGH_ELEMENTS      1
+#define OPA_VLARB_PREEMPT_ELEMENTS   2
+#define OPA_VLARB_PREEMPT_MATRIX     3
+
+#define HFI1_XMIT_RATE_UNSUPPORTED               0x0
+#define HFI1_XMIT_RATE_PICO                      0x7
+/* number of 4nsec cycles equaling 2secs */
+#define HFI1_CONG_TIMER_PSINTERVAL               0x1DCD64EC
+
+#define IB_CC_SVCTYPE_RC 0x0
+#define IB_CC_SVCTYPE_UC 0x1
+#define IB_CC_SVCTYPE_RD 0x2
+#define IB_CC_SVCTYPE_UD 0x3
+
+/*
+ * There should be an equivalent IB #define for the following, but
+ * I cannot find it.
+ */
+#define OPA_CC_LOG_TYPE_HFI	2
+
+struct opa_hfi1_cong_log_event_internal {
+	u32 lqpn;
+	u32 rqpn;
+	u8 sl;
+	u8 svc_type;
+	u32 rlid;
+	u64 timestamp; /* wider than 32 bits to detect 32 bit rollover */
+};
+
+struct opa_hfi1_cong_log_event {
+	u8 local_qp_cn_entry[3];
+	u8 remote_qp_number_cn_entry[3];
+	u8 sl_svc_type_cn_entry; /* 5 bits SL, 3 bits svc type */
+	u8 reserved;
+	__be32 remote_lid_cn_entry;
+	__be32 timestamp_cn_entry;
+} __packed;
+
+#define OPA_CONG_LOG_ELEMS	96
+
+struct opa_hfi1_cong_log {
+	u8 log_type;
+	u8 congestion_flags;
+	__be16 threshold_event_counter;
+	__be32 current_time_stamp;
+	u8 threshold_cong_event_map[OPA_MAX_SLS / 8];
+	struct opa_hfi1_cong_log_event events[OPA_CONG_LOG_ELEMS];
+} __packed;
+
+#define IB_CC_TABLE_CAP_DEFAULT 31
+
+/* Port control flags */
+#define IB_CC_CCS_PC_SL_BASED 0x01
+
+struct opa_congestion_setting_entry {
+	u8 ccti_increase;
+	u8 reserved;
+	__be16 ccti_timer;
+	u8 trigger_threshold;
+	u8 ccti_min; /* min CCTI for cc table */
+} __packed;
+
+struct opa_congestion_setting_entry_shadow {
+	u8 ccti_increase;
+	u8 reserved;
+	u16 ccti_timer;
+	u8 trigger_threshold;
+	u8 ccti_min; /* min CCTI for cc table */
+} __packed;
+
+struct opa_congestion_setting_attr {
+	__be32 control_map;
+	__be16 port_control;
+	struct opa_congestion_setting_entry entries[OPA_MAX_SLS];
+} __packed;
+
+struct opa_congestion_setting_attr_shadow {
+	u32 control_map;
+	u16 port_control;
+	struct opa_congestion_setting_entry_shadow entries[OPA_MAX_SLS];
+} __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_limit; /* max CCTI for cc table */
+	struct ib_cc_table_entry_shadow entries[CC_TABLE_SHADOW_MAX];
+} __packed;
+
+/*
+ * struct cc_state combines the (active) per-port congestion control
+ * table, and the (active) per-SL congestion settings. cc_state data
+ * may need to be read in code paths that we want to be fast, so it
+ * is an RCU protected structure.
+ */
+struct cc_state {
+	struct rcu_head rcu;
+	struct cc_table_shadow cct;
+	struct opa_congestion_setting_attr_shadow cong_setting;
+};
+
+/*
+ * OPA BufferControl MAD
+ */
+
+/* attribute modifier macros */
+#define OPA_AM_NPORT_SHIFT	24
+#define OPA_AM_NPORT_MASK	0xff
+#define OPA_AM_NPORT_SMASK	(OPA_AM_NPORT_MASK << OPA_AM_NPORT_SHIFT)
+#define OPA_AM_NPORT(am)	(((am) >> OPA_AM_NPORT_SHIFT) & \
+					OPA_AM_NPORT_MASK)
+
+#define OPA_AM_NBLK_SHIFT	24
+#define OPA_AM_NBLK_MASK	0xff
+#define OPA_AM_NBLK_SMASK	(OPA_AM_NBLK_MASK << OPA_AM_NBLK_SHIFT)
+#define OPA_AM_NBLK(am)		(((am) >> OPA_AM_NBLK_SHIFT) & \
+					OPA_AM_NBLK_MASK)
+
+#define OPA_AM_START_BLK_SHIFT	0
+#define OPA_AM_START_BLK_MASK	0xff
+#define OPA_AM_START_BLK_SMASK	(OPA_AM_START_BLK_MASK << \
+					OPA_AM_START_BLK_SHIFT)
+#define OPA_AM_START_BLK(am)	(((am) >> OPA_AM_START_BLK_SHIFT) & \
+					OPA_AM_START_BLK_MASK)
+
+#define OPA_AM_PORTNUM_SHIFT	0
+#define OPA_AM_PORTNUM_MASK	0xff
+#define OPA_AM_PORTNUM_SMASK	(OPA_AM_PORTNUM_MASK << OPA_AM_PORTNUM_SHIFT)
+#define OPA_AM_PORTNUM(am)	(((am) >> OPA_AM_PORTNUM_SHIFT) & \
+					OPA_AM_PORTNUM_MASK)
+
+#define OPA_AM_ASYNC_SHIFT	12
+#define OPA_AM_ASYNC_MASK	0x1
+#define OPA_AM_ASYNC_SMASK	(OPA_AM_ASYNC_MASK << OPA_AM_ASYNC_SHIFT)
+#define OPA_AM_ASYNC(am)	(((am) >> OPA_AM_ASYNC_SHIFT) & \
+					OPA_AM_ASYNC_MASK)
+
+#define OPA_AM_START_SM_CFG_SHIFT	9
+#define OPA_AM_START_SM_CFG_MASK	0x1
+#define OPA_AM_START_SM_CFG_SMASK	(OPA_AM_START_SM_CFG_MASK << \
+						OPA_AM_START_SM_CFG_SHIFT)
+#define OPA_AM_START_SM_CFG(am)		(((am) >> OPA_AM_START_SM_CFG_SHIFT) \
+						& OPA_AM_START_SM_CFG_MASK)
+
+#define OPA_AM_CI_ADDR_SHIFT	19
+#define OPA_AM_CI_ADDR_MASK	0xfff
+#define OPA_AM_CI_ADDR_SMASK	(OPA_AM_CI_ADDR_MASK << OPA_CI_ADDR_SHIFT)
+#define OPA_AM_CI_ADDR(am)	(((am) >> OPA_AM_CI_ADDR_SHIFT) & \
+					OPA_AM_CI_ADDR_MASK)
+
+#define OPA_AM_CI_LEN_SHIFT	13
+#define OPA_AM_CI_LEN_MASK	0x3f
+#define OPA_AM_CI_LEN_SMASK	(OPA_AM_CI_LEN_MASK << OPA_CI_LEN_SHIFT)
+#define OPA_AM_CI_LEN(am)	(((am) >> OPA_AM_CI_LEN_SHIFT) & \
+					OPA_AM_CI_LEN_MASK)
+
+/* error info macros */
+#define OPA_EI_STATUS_SMASK	0x80
+#define OPA_EI_CODE_SMASK	0x0f
+
+struct vl_limit {
+	__be16 dedicated;
+	__be16 shared;
+};
+
+struct buffer_control {
+	__be16 reserved;
+	__be16 overall_shared_limit;
+	struct vl_limit vl[OPA_MAX_VLS];
+};
+
+struct sc2vlnt {
+	u8 vlnt[32]; /* 5 bit VL, 3 bits reserved */
+};
+
+/*
+ * 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))
+
+void hfi1_event_pkey_change(struct hfi1_devdata *dd, u8 port);
+void hfi1_handle_trap_timer(struct timer_list *t);
+u16 tx_link_width(u16 link_width);
+u64 get_xmit_wait_counters(struct hfi1_pportdata *ppd, u16 link_width,
+			   u16 link_speed, int vl);
+/**
+ * get_link_speed - determine whether 12.5G or 25G speed
+ * @link_speed: the speed of active link
+ * @return: Return 2 if link speed identified as 12.5G
+ * or return 1 if link speed is 25G.
+ *
+ * The function indirectly calculate required link speed
+ * value for convert_xmit_counter function. If the link
+ * speed is 25G, the function return as 1 as it is required
+ * by xmit counter conversion formula :-( 25G / link_speed).
+ * This conversion will provide value 1 if current
+ * link speed is 25G or 2 if 12.5G.This is done to avoid
+ * 12.5 float number conversion.
+ */
+static inline u16 get_link_speed(u16 link_speed)
+{
+	return (link_speed == 1) ?
+		 LINK_SPEED_12_5G : LINK_SPEED_25G;
+}
+
+/**
+ * convert_xmit_counter - calculate flit times for given xmit counter
+ * value
+ * @xmit_wait_val: current xmit counter value
+ * @link_width: width of active link
+ * @link_speed: speed of active link
+ * @return: return xmit counter value in flit times.
+ */
+static inline u64 convert_xmit_counter(u64 xmit_wait_val, u16 link_width,
+				       u16 link_speed)
+{
+	return (xmit_wait_val * 2 * (FACTOR_LINK_WIDTH / link_width)
+		 * link_speed) / DECIMAL_FACTORING;
+}
+#endif				/* _HFI1_MAD_H */