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-rw-r--r--drivers/scsi/be2iscsi/Kconfig11
-rw-r--r--drivers/scsi/be2iscsi/Makefile9
-rw-r--r--drivers/scsi/be2iscsi/be.h205
-rw-r--r--drivers/scsi/be2iscsi/be_cmds.c1866
-rw-r--r--drivers/scsi/be2iscsi/be_cmds.h1461
-rw-r--r--drivers/scsi/be2iscsi/be_iscsi.c1415
-rw-r--r--drivers/scsi/be2iscsi/be_iscsi.h76
-rw-r--r--drivers/scsi/be2iscsi/be_main.c5872
-rw-r--r--drivers/scsi/be2iscsi/be_main.h1030
-rw-r--r--drivers/scsi/be2iscsi/be_mgmt.c1559
-rw-r--r--drivers/scsi/be2iscsi/be_mgmt.h242
11 files changed, 13746 insertions, 0 deletions
diff --git a/drivers/scsi/be2iscsi/Kconfig b/drivers/scsi/be2iscsi/Kconfig
new file mode 100644
index 000000000..958c9b46e
--- /dev/null
+++ b/drivers/scsi/be2iscsi/Kconfig
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config BE2ISCSI
+ tristate "Emulex 10Gbps iSCSI - BladeEngine 2"
+ depends on PCI && SCSI && NET
+ select SCSI_ISCSI_ATTRS
+ select ISCSI_BOOT_SYSFS
+ select IRQ_POLL
+
+ help
+ This driver implements the iSCSI functionality for Emulex
+ 10Gbps Storage adapter - BladeEngine 2.
diff --git a/drivers/scsi/be2iscsi/Makefile b/drivers/scsi/be2iscsi/Makefile
new file mode 100644
index 000000000..910885343
--- /dev/null
+++ b/drivers/scsi/be2iscsi/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile to build the iSCSI driver for Emulex OneConnect.
+#
+#
+
+obj-$(CONFIG_BE2ISCSI) += be2iscsi.o
+
+be2iscsi-y := be_iscsi.o be_main.o be_mgmt.o be_cmds.o
diff --git a/drivers/scsi/be2iscsi/be.h b/drivers/scsi/be2iscsi/be.h
new file mode 100644
index 000000000..4c58a0259
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be.h
@@ -0,0 +1,205 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2017 Broadcom. All Rights Reserved.
+ * The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
+ *
+ * Contact Information:
+ * linux-drivers@broadcom.com
+ */
+
+#ifndef BEISCSI_H
+#define BEISCSI_H
+
+#include <linux/pci.h>
+#include <linux/if_vlan.h>
+#include <linux/irq_poll.h>
+#define FW_VER_LEN 32
+#define MCC_Q_LEN 128
+#define MCC_CQ_LEN 256
+#define MAX_MCC_CMD 16
+/* BladeEngine Generation numbers */
+#define BE_GEN2 2
+#define BE_GEN3 3
+#define BE_GEN4 4
+struct be_dma_mem {
+ void *va;
+ dma_addr_t dma;
+ u32 size;
+};
+
+struct be_queue_info {
+ struct be_dma_mem dma_mem;
+ u16 len;
+ u16 entry_size; /* Size of an element in the queue */
+ u16 id;
+ u16 tail, head;
+ bool created;
+ u16 used; /* Number of valid elements in the queue */
+};
+
+static inline u32 MODULO(u16 val, u16 limit)
+{
+ WARN_ON(limit & (limit - 1));
+ return val & (limit - 1);
+}
+
+static inline void index_inc(u16 *index, u16 limit)
+{
+ *index = MODULO((*index + 1), limit);
+}
+
+static inline void *queue_head_node(struct be_queue_info *q)
+{
+ return q->dma_mem.va + q->head * q->entry_size;
+}
+
+static inline void *queue_get_wrb(struct be_queue_info *q, unsigned int wrb_num)
+{
+ return q->dma_mem.va + wrb_num * q->entry_size;
+}
+
+static inline void *queue_tail_node(struct be_queue_info *q)
+{
+ return q->dma_mem.va + q->tail * q->entry_size;
+}
+
+static inline void queue_head_inc(struct be_queue_info *q)
+{
+ index_inc(&q->head, q->len);
+}
+
+static inline void queue_tail_inc(struct be_queue_info *q)
+{
+ index_inc(&q->tail, q->len);
+}
+
+/*ISCSI */
+
+struct be_aic_obj { /* Adaptive interrupt coalescing (AIC) info */
+ unsigned long jiffies;
+ u32 eq_prev; /* Used to calculate eqe */
+ u32 prev_eqd;
+#define BEISCSI_EQ_DELAY_MIN 0
+#define BEISCSI_EQ_DELAY_DEF 32
+#define BEISCSI_EQ_DELAY_MAX 128
+};
+
+struct be_eq_obj {
+ u32 cq_count;
+ struct be_queue_info q;
+ struct beiscsi_hba *phba;
+ struct be_queue_info *cq;
+ struct work_struct mcc_work; /* Work Item */
+ struct irq_poll iopoll;
+};
+
+struct be_mcc_obj {
+ struct be_queue_info q;
+ struct be_queue_info cq;
+};
+
+struct beiscsi_mcc_tag_state {
+ unsigned long tag_state;
+#define MCC_TAG_STATE_RUNNING 0
+#define MCC_TAG_STATE_TIMEOUT 1
+#define MCC_TAG_STATE_ASYNC 2
+#define MCC_TAG_STATE_IGNORE 3
+ void (*cbfn)(struct beiscsi_hba *, unsigned int);
+ struct be_dma_mem tag_mem_state;
+};
+
+struct be_ctrl_info {
+ u8 __iomem *csr;
+ u8 __iomem *db; /* Door Bell */
+ u8 __iomem *pcicfg; /* PCI config space */
+ struct pci_dev *pdev;
+
+ /* Mbox used for cmd request/response */
+ struct mutex mbox_lock; /* For serializing mbox cmds to BE card */
+ struct be_dma_mem mbox_mem;
+ /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
+ * is stored for freeing purpose */
+ struct be_dma_mem mbox_mem_alloced;
+
+ /* MCC Rings */
+ struct be_mcc_obj mcc_obj;
+ spinlock_t mcc_lock; /* For serializing mcc cmds to BE card */
+
+ wait_queue_head_t mcc_wait[MAX_MCC_CMD + 1];
+ unsigned int mcc_tag[MAX_MCC_CMD];
+ unsigned int mcc_tag_status[MAX_MCC_CMD + 1];
+ unsigned short mcc_alloc_index;
+ unsigned short mcc_free_index;
+ unsigned int mcc_tag_available;
+
+ struct beiscsi_mcc_tag_state ptag_state[MAX_MCC_CMD + 1];
+};
+
+#include "be_cmds.h"
+
+/* WRB index mask for MCC_Q_LEN queue entries */
+#define MCC_Q_WRB_IDX_MASK CQE_STATUS_WRB_MASK
+#define MCC_Q_WRB_IDX_SHIFT CQE_STATUS_WRB_SHIFT
+/* TAG is from 1...MAX_MCC_CMD, MASK includes MAX_MCC_CMD */
+#define MCC_Q_CMD_TAG_MASK ((MAX_MCC_CMD << 1) - 1)
+
+#define PAGE_SHIFT_4K 12
+#define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
+
+/* Returns number of pages spanned by the data starting at the given addr */
+#define PAGES_4K_SPANNED(_address, size) \
+ ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
+ (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
+
+/* Returns bit offset within a DWORD of a bitfield */
+#define AMAP_BIT_OFFSET(_struct, field) \
+ (((size_t)&(((_struct *)0)->field))%32)
+
+/* Returns the bit mask of the field that is NOT shifted into location. */
+static inline u32 amap_mask(u32 bitsize)
+{
+ return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
+}
+
+static inline void amap_set(void *ptr, u32 dw_offset, u32 mask,
+ u32 offset, u32 value)
+{
+ u32 *dw = (u32 *) ptr + dw_offset;
+ *dw &= ~(mask << offset);
+ *dw |= (mask & value) << offset;
+}
+
+#define AMAP_SET_BITS(_struct, field, ptr, val) \
+ amap_set(ptr, \
+ offsetof(_struct, field)/32, \
+ amap_mask(sizeof(((_struct *)0)->field)), \
+ AMAP_BIT_OFFSET(_struct, field), \
+ val)
+
+static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
+{
+ u32 *dw = ptr;
+ return mask & (*(dw + dw_offset) >> offset);
+}
+
+#define AMAP_GET_BITS(_struct, field, ptr) \
+ amap_get(ptr, \
+ offsetof(_struct, field)/32, \
+ amap_mask(sizeof(((_struct *)0)->field)), \
+ AMAP_BIT_OFFSET(_struct, field))
+
+#define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
+#define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
+static inline void swap_dws(void *wrb, int len)
+{
+#ifdef __BIG_ENDIAN
+ u32 *dw = wrb;
+ WARN_ON(len % 4);
+ do {
+ *dw = cpu_to_le32(*dw);
+ dw++;
+ len -= 4;
+ } while (len);
+#endif /* __BIG_ENDIAN */
+}
+#endif /* BEISCSI_H */
diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
new file mode 100644
index 000000000..69b1a80e3
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be_cmds.c
@@ -0,0 +1,1866 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2017 Broadcom. All Rights Reserved.
+ * The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
+ *
+ * Contact Information:
+ * linux-drivers@broadcom.com
+ */
+
+#include <scsi/iscsi_proto.h>
+
+#include "be_main.h"
+#include "be.h"
+#include "be_mgmt.h"
+
+/* UE Status Low CSR */
+static const char * const desc_ue_status_low[] = {
+ "CEV",
+ "CTX",
+ "DBUF",
+ "ERX",
+ "Host",
+ "MPU",
+ "NDMA",
+ "PTC ",
+ "RDMA ",
+ "RXF ",
+ "RXIPS ",
+ "RXULP0 ",
+ "RXULP1 ",
+ "RXULP2 ",
+ "TIM ",
+ "TPOST ",
+ "TPRE ",
+ "TXIPS ",
+ "TXULP0 ",
+ "TXULP1 ",
+ "UC ",
+ "WDMA ",
+ "TXULP2 ",
+ "HOST1 ",
+ "P0_OB_LINK ",
+ "P1_OB_LINK ",
+ "HOST_GPIO ",
+ "MBOX ",
+ "AXGMAC0",
+ "AXGMAC1",
+ "JTAG",
+ "MPU_INTPEND"
+};
+
+/* UE Status High CSR */
+static const char * const desc_ue_status_hi[] = {
+ "LPCMEMHOST",
+ "MGMT_MAC",
+ "PCS0ONLINE",
+ "MPU_IRAM",
+ "PCS1ONLINE",
+ "PCTL0",
+ "PCTL1",
+ "PMEM",
+ "RR",
+ "TXPB",
+ "RXPP",
+ "XAUI",
+ "TXP",
+ "ARM",
+ "IPC",
+ "HOST2",
+ "HOST3",
+ "HOST4",
+ "HOST5",
+ "HOST6",
+ "HOST7",
+ "HOST8",
+ "HOST9",
+ "NETC",
+ "Unknown",
+ "Unknown",
+ "Unknown",
+ "Unknown",
+ "Unknown",
+ "Unknown",
+ "Unknown",
+ "Unknown"
+};
+
+struct be_mcc_wrb *alloc_mcc_wrb(struct beiscsi_hba *phba,
+ unsigned int *ref_tag)
+{
+ struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
+ struct be_mcc_wrb *wrb = NULL;
+ unsigned int tag;
+
+ spin_lock(&phba->ctrl.mcc_lock);
+ if (mccq->used == mccq->len) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT |
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+ "BC_%d : MCC queue full: WRB used %u tag avail %u\n",
+ mccq->used, phba->ctrl.mcc_tag_available);
+ goto alloc_failed;
+ }
+
+ if (!phba->ctrl.mcc_tag_available)
+ goto alloc_failed;
+
+ tag = phba->ctrl.mcc_tag[phba->ctrl.mcc_alloc_index];
+ if (!tag) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT |
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+ "BC_%d : MCC tag 0 allocated: tag avail %u alloc index %u\n",
+ phba->ctrl.mcc_tag_available,
+ phba->ctrl.mcc_alloc_index);
+ goto alloc_failed;
+ }
+
+ /* return this tag for further reference */
+ *ref_tag = tag;
+ phba->ctrl.mcc_tag[phba->ctrl.mcc_alloc_index] = 0;
+ phba->ctrl.mcc_tag_status[tag] = 0;
+ phba->ctrl.ptag_state[tag].tag_state = 0;
+ phba->ctrl.ptag_state[tag].cbfn = NULL;
+ phba->ctrl.mcc_tag_available--;
+ if (phba->ctrl.mcc_alloc_index == (MAX_MCC_CMD - 1))
+ phba->ctrl.mcc_alloc_index = 0;
+ else
+ phba->ctrl.mcc_alloc_index++;
+
+ wrb = queue_head_node(mccq);
+ memset(wrb, 0, sizeof(*wrb));
+ wrb->tag0 = tag;
+ wrb->tag0 |= (mccq->head << MCC_Q_WRB_IDX_SHIFT) & MCC_Q_WRB_IDX_MASK;
+ queue_head_inc(mccq);
+ mccq->used++;
+
+alloc_failed:
+ spin_unlock(&phba->ctrl.mcc_lock);
+ return wrb;
+}
+
+void free_mcc_wrb(struct be_ctrl_info *ctrl, unsigned int tag)
+{
+ struct be_queue_info *mccq = &ctrl->mcc_obj.q;
+
+ spin_lock(&ctrl->mcc_lock);
+ tag = tag & MCC_Q_CMD_TAG_MASK;
+ ctrl->mcc_tag[ctrl->mcc_free_index] = tag;
+ if (ctrl->mcc_free_index == (MAX_MCC_CMD - 1))
+ ctrl->mcc_free_index = 0;
+ else
+ ctrl->mcc_free_index++;
+ ctrl->mcc_tag_available++;
+ mccq->used--;
+ spin_unlock(&ctrl->mcc_lock);
+}
+
+/*
+ * beiscsi_mcc_compl_status - Return the status of MCC completion
+ * @phba: Driver private structure
+ * @tag: Tag for the MBX Command
+ * @wrb: the WRB used for the MBX Command
+ * @mbx_cmd_mem: ptr to memory allocated for MBX Cmd
+ *
+ * return
+ * Success: 0
+ * Failure: Non-Zero
+ */
+int __beiscsi_mcc_compl_status(struct beiscsi_hba *phba,
+ unsigned int tag,
+ struct be_mcc_wrb **wrb,
+ struct be_dma_mem *mbx_cmd_mem)
+{
+ struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
+ uint16_t status = 0, addl_status = 0, wrb_num = 0;
+ struct be_cmd_resp_hdr *mbx_resp_hdr;
+ struct be_cmd_req_hdr *mbx_hdr;
+ struct be_mcc_wrb *temp_wrb;
+ uint32_t mcc_tag_status;
+ int rc = 0;
+
+ mcc_tag_status = phba->ctrl.mcc_tag_status[tag];
+ status = (mcc_tag_status & CQE_STATUS_MASK);
+ addl_status = ((mcc_tag_status & CQE_STATUS_ADDL_MASK) >>
+ CQE_STATUS_ADDL_SHIFT);
+
+ if (mbx_cmd_mem) {
+ mbx_hdr = (struct be_cmd_req_hdr *)mbx_cmd_mem->va;
+ } else {
+ wrb_num = (mcc_tag_status & CQE_STATUS_WRB_MASK) >>
+ CQE_STATUS_WRB_SHIFT;
+ temp_wrb = (struct be_mcc_wrb *)queue_get_wrb(mccq, wrb_num);
+ mbx_hdr = embedded_payload(temp_wrb);
+
+ if (wrb)
+ *wrb = temp_wrb;
+ }
+
+ if (status || addl_status) {
+ beiscsi_log(phba, KERN_WARNING,
+ BEISCSI_LOG_INIT | BEISCSI_LOG_EH |
+ BEISCSI_LOG_CONFIG,
+ "BC_%d : MBX Cmd Failed for Subsys : %d Opcode : %d with Status : %d and Extd_Status : %d\n",
+ mbx_hdr->subsystem, mbx_hdr->opcode,
+ status, addl_status);
+ rc = -EIO;
+ if (status == MCC_STATUS_INSUFFICIENT_BUFFER) {
+ mbx_resp_hdr = (struct be_cmd_resp_hdr *)mbx_hdr;
+ beiscsi_log(phba, KERN_WARNING,
+ BEISCSI_LOG_INIT | BEISCSI_LOG_EH |
+ BEISCSI_LOG_CONFIG,
+ "BC_%d : Insufficient Buffer Error Resp_Len : %d Actual_Resp_Len : %d\n",
+ mbx_resp_hdr->response_length,
+ mbx_resp_hdr->actual_resp_len);
+ rc = -EAGAIN;
+ }
+ }
+
+ return rc;
+}
+
+/*
+ * beiscsi_mccq_compl_wait()- Process completion in MCC CQ
+ * @phba: Driver private structure
+ * @tag: Tag for the MBX Command
+ * @wrb: the WRB used for the MBX Command
+ * @mbx_cmd_mem: ptr to memory allocated for MBX Cmd
+ *
+ * Waits for MBX completion with the passed TAG.
+ *
+ * return
+ * Success: 0
+ * Failure: Non-Zero
+ **/
+int beiscsi_mccq_compl_wait(struct beiscsi_hba *phba,
+ unsigned int tag,
+ struct be_mcc_wrb **wrb,
+ struct be_dma_mem *mbx_cmd_mem)
+{
+ int rc = 0;
+
+ if (!tag || tag > MAX_MCC_CMD) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BC_%d : invalid tag %u\n", tag);
+ return -EINVAL;
+ }
+
+ if (beiscsi_hba_in_error(phba)) {
+ clear_bit(MCC_TAG_STATE_RUNNING,
+ &phba->ctrl.ptag_state[tag].tag_state);
+ return -EIO;
+ }
+
+ /* wait for the mccq completion */
+ rc = wait_event_interruptible_timeout(phba->ctrl.mcc_wait[tag],
+ phba->ctrl.mcc_tag_status[tag],
+ msecs_to_jiffies(
+ BEISCSI_HOST_MBX_TIMEOUT));
+ /**
+ * Return EIO if port is being disabled. Associated DMA memory, if any,
+ * is freed by the caller. When port goes offline, MCCQ is cleaned up
+ * so does WRB.
+ */
+ if (!test_bit(BEISCSI_HBA_ONLINE, &phba->state)) {
+ clear_bit(MCC_TAG_STATE_RUNNING,
+ &phba->ctrl.ptag_state[tag].tag_state);
+ return -EIO;
+ }
+
+ /**
+ * If MBOX cmd timeout expired, tag and resource allocated
+ * for cmd is not freed until FW returns completion.
+ */
+ if (rc <= 0) {
+ struct be_dma_mem *tag_mem;
+
+ /**
+ * PCI/DMA memory allocated and posted in non-embedded mode
+ * will have mbx_cmd_mem != NULL.
+ * Save virtual and bus addresses for the command so that it
+ * can be freed later.
+ **/
+ tag_mem = &phba->ctrl.ptag_state[tag].tag_mem_state;
+ if (mbx_cmd_mem) {
+ tag_mem->size = mbx_cmd_mem->size;
+ tag_mem->va = mbx_cmd_mem->va;
+ tag_mem->dma = mbx_cmd_mem->dma;
+ } else
+ tag_mem->size = 0;
+
+ /* first make tag_mem_state visible to all */
+ wmb();
+ set_bit(MCC_TAG_STATE_TIMEOUT,
+ &phba->ctrl.ptag_state[tag].tag_state);
+
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_INIT | BEISCSI_LOG_EH |
+ BEISCSI_LOG_CONFIG,
+ "BC_%d : MBX Cmd Completion timed out\n");
+ return -EBUSY;
+ }
+
+ rc = __beiscsi_mcc_compl_status(phba, tag, wrb, mbx_cmd_mem);
+
+ free_mcc_wrb(&phba->ctrl, tag);
+ return rc;
+}
+
+/*
+ * beiscsi_process_mbox_compl()- Check the MBX completion status
+ * @ctrl: Function specific MBX data structure
+ * @compl: Completion status of MBX Command
+ *
+ * Check for the MBX completion status when BMBX method used
+ *
+ * return
+ * Success: Zero
+ * Failure: Non-Zero
+ **/
+static int beiscsi_process_mbox_compl(struct be_ctrl_info *ctrl,
+ struct be_mcc_compl *compl)
+{
+ struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
+ struct be_cmd_req_hdr *hdr = embedded_payload(wrb);
+ u16 compl_status, extd_status;
+
+ /**
+ * To check if valid bit is set, check the entire word as we don't know
+ * the endianness of the data (old entry is host endian while a new
+ * entry is little endian)
+ */
+ if (!compl->flags) {
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+ "BC_%d : BMBX busy, no completion\n");
+ return -EBUSY;
+ }
+ compl->flags = le32_to_cpu(compl->flags);
+ WARN_ON((compl->flags & CQE_FLAGS_VALID_MASK) == 0);
+
+ /**
+ * Just swap the status to host endian;
+ * mcc tag is opaquely copied from mcc_wrb.
+ */
+ be_dws_le_to_cpu(compl, 4);
+ compl_status = (compl->status >> CQE_STATUS_COMPL_SHIFT) &
+ CQE_STATUS_COMPL_MASK;
+ extd_status = (compl->status >> CQE_STATUS_EXTD_SHIFT) &
+ CQE_STATUS_EXTD_MASK;
+ /* Need to reset the entire word that houses the valid bit */
+ compl->flags = 0;
+
+ if (compl_status == MCC_STATUS_SUCCESS)
+ return 0;
+
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+ "BC_%d : error in cmd completion: Subsystem : %d Opcode : %d status(compl/extd)=%d/%d\n",
+ hdr->subsystem, hdr->opcode, compl_status, extd_status);
+ return compl_status;
+}
+
+static void beiscsi_process_async_link(struct beiscsi_hba *phba,
+ struct be_mcc_compl *compl)
+{
+ struct be_async_event_link_state *evt;
+
+ evt = (struct be_async_event_link_state *)compl;
+
+ phba->port_speed = evt->port_speed;
+ /**
+ * Check logical link status in ASYNC event.
+ * This has been newly introduced in SKH-R Firmware 10.0.338.45.
+ **/
+ if (evt->port_link_status & BE_ASYNC_LINK_UP_MASK) {
+ set_bit(BEISCSI_HBA_LINK_UP, &phba->state);
+ if (test_bit(BEISCSI_HBA_BOOT_FOUND, &phba->state))
+ beiscsi_start_boot_work(phba, BE_BOOT_INVALID_SHANDLE);
+ __beiscsi_log(phba, KERN_ERR,
+ "BC_%d : Link Up on Port %d tag 0x%x\n",
+ evt->physical_port, evt->event_tag);
+ } else {
+ clear_bit(BEISCSI_HBA_LINK_UP, &phba->state);
+ __beiscsi_log(phba, KERN_ERR,
+ "BC_%d : Link Down on Port %d tag 0x%x\n",
+ evt->physical_port, evt->event_tag);
+ iscsi_host_for_each_session(phba->shost,
+ beiscsi_session_fail);
+ }
+}
+
+static char *beiscsi_port_misconf_event_msg[] = {
+ "Physical Link is functional.",
+ "Optics faulted/incorrectly installed/not installed - Reseat optics, if issue not resolved, replace.",
+ "Optics of two types installed - Remove one optic or install matching pair of optics.",
+ "Incompatible optics - Replace with compatible optics for card to function.",
+ "Unqualified optics - Replace with Avago optics for Warranty and Technical Support.",
+ "Uncertified optics - Replace with Avago Certified optics to enable link operation."
+};
+
+static void beiscsi_process_async_sli(struct beiscsi_hba *phba,
+ struct be_mcc_compl *compl)
+{
+ struct be_async_event_sli *async_sli;
+ u8 evt_type, state, old_state, le;
+ char *sev = KERN_WARNING;
+ char *msg = NULL;
+
+ evt_type = compl->flags >> ASYNC_TRAILER_EVENT_TYPE_SHIFT;
+ evt_type &= ASYNC_TRAILER_EVENT_TYPE_MASK;
+
+ /* processing only MISCONFIGURED physical port event */
+ if (evt_type != ASYNC_SLI_EVENT_TYPE_MISCONFIGURED)
+ return;
+
+ async_sli = (struct be_async_event_sli *)compl;
+ state = async_sli->event_data1 >>
+ (phba->fw_config.phys_port * 8) & 0xff;
+ le = async_sli->event_data2 >>
+ (phba->fw_config.phys_port * 8) & 0xff;
+
+ old_state = phba->optic_state;
+ phba->optic_state = state;
+
+ if (state >= ARRAY_SIZE(beiscsi_port_misconf_event_msg)) {
+ /* fw is reporting a state we don't know, log and return */
+ __beiscsi_log(phba, KERN_ERR,
+ "BC_%d : Port %c: Unrecognized optic state 0x%x\n",
+ phba->port_name, async_sli->event_data1);
+ return;
+ }
+
+ if (ASYNC_SLI_LINK_EFFECT_VALID(le)) {
+ /* log link effect for unqualified-4, uncertified-5 optics */
+ if (state > 3)
+ msg = (ASYNC_SLI_LINK_EFFECT_STATE(le)) ?
+ " Link is non-operational." :
+ " Link is operational.";
+ /* 1 - info */
+ if (ASYNC_SLI_LINK_EFFECT_SEV(le) == 1)
+ sev = KERN_INFO;
+ /* 2 - error */
+ if (ASYNC_SLI_LINK_EFFECT_SEV(le) == 2)
+ sev = KERN_ERR;
+ }
+
+ if (old_state != phba->optic_state)
+ __beiscsi_log(phba, sev, "BC_%d : Port %c: %s%s\n",
+ phba->port_name,
+ beiscsi_port_misconf_event_msg[state],
+ !msg ? "" : msg);
+}
+
+void beiscsi_process_async_event(struct beiscsi_hba *phba,
+ struct be_mcc_compl *compl)
+{
+ char *sev = KERN_INFO;
+ u8 evt_code;
+
+ /* interpret flags as an async trailer */
+ evt_code = compl->flags >> ASYNC_TRAILER_EVENT_CODE_SHIFT;
+ evt_code &= ASYNC_TRAILER_EVENT_CODE_MASK;
+ switch (evt_code) {
+ case ASYNC_EVENT_CODE_LINK_STATE:
+ beiscsi_process_async_link(phba, compl);
+ break;
+ case ASYNC_EVENT_CODE_ISCSI:
+ if (test_bit(BEISCSI_HBA_BOOT_FOUND, &phba->state))
+ beiscsi_start_boot_work(phba, BE_BOOT_INVALID_SHANDLE);
+ sev = KERN_ERR;
+ break;
+ case ASYNC_EVENT_CODE_SLI:
+ beiscsi_process_async_sli(phba, compl);
+ break;
+ default:
+ /* event not registered */
+ sev = KERN_ERR;
+ }
+
+ beiscsi_log(phba, sev, BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+ "BC_%d : ASYNC Event %x: status 0x%08x flags 0x%08x\n",
+ evt_code, compl->status, compl->flags);
+}
+
+int beiscsi_process_mcc_compl(struct be_ctrl_info *ctrl,
+ struct be_mcc_compl *compl)
+{
+ struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
+ u16 compl_status, extd_status;
+ struct be_dma_mem *tag_mem;
+ unsigned int tag, wrb_idx;
+
+ be_dws_le_to_cpu(compl, 4);
+ tag = (compl->tag0 & MCC_Q_CMD_TAG_MASK);
+ wrb_idx = (compl->tag0 & CQE_STATUS_WRB_MASK) >> CQE_STATUS_WRB_SHIFT;
+
+ if (!test_bit(MCC_TAG_STATE_RUNNING,
+ &ctrl->ptag_state[tag].tag_state)) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_MBOX |
+ BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
+ "BC_%d : MBX cmd completed but not posted\n");
+ return 0;
+ }
+
+ /* end MCC with this tag */
+ clear_bit(MCC_TAG_STATE_RUNNING, &ctrl->ptag_state[tag].tag_state);
+
+ if (test_bit(MCC_TAG_STATE_TIMEOUT, &ctrl->ptag_state[tag].tag_state)) {
+ beiscsi_log(phba, KERN_WARNING,
+ BEISCSI_LOG_MBOX | BEISCSI_LOG_INIT |
+ BEISCSI_LOG_CONFIG,
+ "BC_%d : MBX Completion for timeout Command from FW\n");
+ /**
+ * Check for the size before freeing resource.
+ * Only for non-embedded cmd, PCI resource is allocated.
+ **/
+ tag_mem = &ctrl->ptag_state[tag].tag_mem_state;
+ if (tag_mem->size) {
+ dma_free_coherent(&ctrl->pdev->dev, tag_mem->size,
+ tag_mem->va, tag_mem->dma);
+ tag_mem->size = 0;
+ }
+ free_mcc_wrb(ctrl, tag);
+ return 0;
+ }
+
+ compl_status = (compl->status >> CQE_STATUS_COMPL_SHIFT) &
+ CQE_STATUS_COMPL_MASK;
+ extd_status = (compl->status >> CQE_STATUS_EXTD_SHIFT) &
+ CQE_STATUS_EXTD_MASK;
+ /* The ctrl.mcc_tag_status[tag] is filled with
+ * [31] = valid, [30:24] = Rsvd, [23:16] = wrb, [15:8] = extd_status,
+ * [7:0] = compl_status
+ */
+ ctrl->mcc_tag_status[tag] = CQE_VALID_MASK;
+ ctrl->mcc_tag_status[tag] |= (wrb_idx << CQE_STATUS_WRB_SHIFT);
+ ctrl->mcc_tag_status[tag] |= (extd_status << CQE_STATUS_ADDL_SHIFT) &
+ CQE_STATUS_ADDL_MASK;
+ ctrl->mcc_tag_status[tag] |= (compl_status & CQE_STATUS_MASK);
+
+ if (test_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state)) {
+ if (ctrl->ptag_state[tag].cbfn)
+ ctrl->ptag_state[tag].cbfn(phba, tag);
+ else
+ __beiscsi_log(phba, KERN_ERR,
+ "BC_%d : MBX ASYNC command with no callback\n");
+ free_mcc_wrb(ctrl, tag);
+ return 0;
+ }
+
+ if (test_bit(MCC_TAG_STATE_IGNORE, &ctrl->ptag_state[tag].tag_state)) {
+ /* just check completion status and free wrb */
+ __beiscsi_mcc_compl_status(phba, tag, NULL, NULL);
+ free_mcc_wrb(ctrl, tag);
+ return 0;
+ }
+
+ wake_up_interruptible(&ctrl->mcc_wait[tag]);
+ return 0;
+}
+
+void be_mcc_notify(struct beiscsi_hba *phba, unsigned int tag)
+{
+ struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
+ u32 val = 0;
+
+ set_bit(MCC_TAG_STATE_RUNNING, &phba->ctrl.ptag_state[tag].tag_state);
+ val |= mccq->id & DB_MCCQ_RING_ID_MASK;
+ val |= 1 << DB_MCCQ_NUM_POSTED_SHIFT;
+ /* make request available for DMA */
+ wmb();
+ iowrite32(val, phba->db_va + DB_MCCQ_OFFSET);
+}
+
+/*
+ * be_mbox_db_ready_poll()- Check ready status
+ * @ctrl: Function specific MBX data structure
+ *
+ * Check for the ready status of FW to send BMBX
+ * commands to adapter.
+ *
+ * return
+ * Success: 0
+ * Failure: Non-Zero
+ **/
+static int be_mbox_db_ready_poll(struct be_ctrl_info *ctrl)
+{
+ /* wait 30s for generic non-flash MBOX operation */
+#define BEISCSI_MBX_RDY_BIT_TIMEOUT 30000
+ void __iomem *db = ctrl->db + MPU_MAILBOX_DB_OFFSET;
+ struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
+ unsigned long timeout;
+ u32 ready;
+
+ /*
+ * This BMBX busy wait path is used during init only.
+ * For the commands executed during init, 5s should suffice.
+ */
+ timeout = jiffies + msecs_to_jiffies(BEISCSI_MBX_RDY_BIT_TIMEOUT);
+ do {
+ if (beiscsi_hba_in_error(phba))
+ return -EIO;
+
+ ready = ioread32(db);
+ if (ready == 0xffffffff)
+ return -EIO;
+
+ ready &= MPU_MAILBOX_DB_RDY_MASK;
+ if (ready)
+ return 0;
+
+ if (time_after(jiffies, timeout))
+ break;
+ /* 1ms sleep is enough in most cases */
+ schedule_timeout_uninterruptible(msecs_to_jiffies(1));
+ } while (!ready);
+
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+ "BC_%d : FW Timed Out\n");
+ set_bit(BEISCSI_HBA_FW_TIMEOUT, &phba->state);
+ return -EBUSY;
+}
+
+/*
+ * be_mbox_notify: Notify adapter of new BMBX command
+ * @ctrl: Function specific MBX data structure
+ *
+ * Ring doorbell to inform adapter of a BMBX command
+ * to process
+ *
+ * return
+ * Success: 0
+ * Failure: Non-Zero
+ **/
+static int be_mbox_notify(struct be_ctrl_info *ctrl)
+{
+ int status;
+ u32 val = 0;
+ void __iomem *db = ctrl->db + MPU_MAILBOX_DB_OFFSET;
+ struct be_dma_mem *mbox_mem = &ctrl->mbox_mem;
+ struct be_mcc_mailbox *mbox = mbox_mem->va;
+
+ status = be_mbox_db_ready_poll(ctrl);
+ if (status)
+ return status;
+
+ val &= ~MPU_MAILBOX_DB_RDY_MASK;
+ val |= MPU_MAILBOX_DB_HI_MASK;
+ val |= (upper_32_bits(mbox_mem->dma) >> 2) << 2;
+ iowrite32(val, db);
+
+ status = be_mbox_db_ready_poll(ctrl);
+ if (status)
+ return status;
+
+ val = 0;
+ val &= ~MPU_MAILBOX_DB_RDY_MASK;
+ val &= ~MPU_MAILBOX_DB_HI_MASK;
+ val |= (u32) (mbox_mem->dma >> 4) << 2;
+ iowrite32(val, db);
+
+ status = be_mbox_db_ready_poll(ctrl);
+ if (status)
+ return status;
+
+ /* RDY is set; small delay before CQE read. */
+ udelay(1);
+
+ status = beiscsi_process_mbox_compl(ctrl, &mbox->compl);
+ return status;
+}
+
+void be_wrb_hdr_prepare(struct be_mcc_wrb *wrb, u32 payload_len,
+ bool embedded, u8 sge_cnt)
+{
+ if (embedded)
+ wrb->emb_sgecnt_special |= MCC_WRB_EMBEDDED_MASK;
+ else
+ wrb->emb_sgecnt_special |= (sge_cnt & MCC_WRB_SGE_CNT_MASK) <<
+ MCC_WRB_SGE_CNT_SHIFT;
+ wrb->payload_length = payload_len;
+ be_dws_cpu_to_le(wrb, 8);
+}
+
+void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr,
+ u8 subsystem, u8 opcode, u32 cmd_len)
+{
+ req_hdr->opcode = opcode;
+ req_hdr->subsystem = subsystem;
+ req_hdr->request_length = cpu_to_le32(cmd_len - sizeof(*req_hdr));
+ req_hdr->timeout = BEISCSI_FW_MBX_TIMEOUT;
+}
+
+static void be_cmd_page_addrs_prepare(struct phys_addr *pages, u32 max_pages,
+ struct be_dma_mem *mem)
+{
+ int i, buf_pages;
+ u64 dma = (u64) mem->dma;
+
+ buf_pages = min(PAGES_4K_SPANNED(mem->va, mem->size), max_pages);
+ for (i = 0; i < buf_pages; i++) {
+ pages[i].lo = cpu_to_le32(dma & 0xFFFFFFFF);
+ pages[i].hi = cpu_to_le32(upper_32_bits(dma));
+ dma += PAGE_SIZE_4K;
+ }
+}
+
+static u32 eq_delay_to_mult(u32 usec_delay)
+{
+#define MAX_INTR_RATE 651042
+ const u32 round = 10;
+ u32 multiplier;
+
+ if (usec_delay == 0)
+ multiplier = 0;
+ else {
+ u32 interrupt_rate = 1000000 / usec_delay;
+ if (interrupt_rate == 0)
+ multiplier = 1023;
+ else {
+ multiplier = (MAX_INTR_RATE - interrupt_rate) * round;
+ multiplier /= interrupt_rate;
+ multiplier = (multiplier + round / 2) / round;
+ multiplier = min(multiplier, (u32) 1023);
+ }
+ }
+ return multiplier;
+}
+
+struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem)
+{
+ return &((struct be_mcc_mailbox *)(mbox_mem->va))->wrb;
+}
+
+int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
+ struct be_queue_info *eq, int eq_delay)
+{
+ struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_cmd_req_eq_create *req = embedded_payload(wrb);
+ struct be_cmd_resp_eq_create *resp = embedded_payload(wrb);
+ struct be_dma_mem *q_mem = &eq->dma_mem;
+ int status;
+
+ mutex_lock(&ctrl->mbox_lock);
+ memset(wrb, 0, sizeof(*wrb));
+
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_EQ_CREATE, sizeof(*req));
+
+ req->num_pages = cpu_to_le16(PAGES_4K_SPANNED(q_mem->va, q_mem->size));
+
+ AMAP_SET_BITS(struct amap_eq_context, func, req->context,
+ PCI_FUNC(ctrl->pdev->devfn));
+ AMAP_SET_BITS(struct amap_eq_context, valid, req->context, 1);
+ AMAP_SET_BITS(struct amap_eq_context, size, req->context, 0);
+ AMAP_SET_BITS(struct amap_eq_context, count, req->context,
+ __ilog2_u32(eq->len / 256));
+ AMAP_SET_BITS(struct amap_eq_context, delaymult, req->context,
+ eq_delay_to_mult(eq_delay));
+ be_dws_cpu_to_le(req->context, sizeof(req->context));
+
+ be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
+
+ status = be_mbox_notify(ctrl);
+ if (!status) {
+ eq->id = le16_to_cpu(resp->eq_id);
+ eq->created = true;
+ }
+ mutex_unlock(&ctrl->mbox_lock);
+ return status;
+}
+
+int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
+ struct be_queue_info *cq, struct be_queue_info *eq,
+ bool sol_evts, bool no_delay, int coalesce_wm)
+{
+ struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_cmd_req_cq_create *req = embedded_payload(wrb);
+ struct be_cmd_resp_cq_create *resp = embedded_payload(wrb);
+ struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
+ struct be_dma_mem *q_mem = &cq->dma_mem;
+ void *ctxt = &req->context;
+ int status;
+
+ mutex_lock(&ctrl->mbox_lock);
+ memset(wrb, 0, sizeof(*wrb));
+
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_CQ_CREATE, sizeof(*req));
+
+ req->num_pages = cpu_to_le16(PAGES_4K_SPANNED(q_mem->va, q_mem->size));
+ if (is_chip_be2_be3r(phba)) {
+ AMAP_SET_BITS(struct amap_cq_context, coalescwm,
+ ctxt, coalesce_wm);
+ AMAP_SET_BITS(struct amap_cq_context, nodelay, ctxt, no_delay);
+ AMAP_SET_BITS(struct amap_cq_context, count, ctxt,
+ __ilog2_u32(cq->len / 256));
+ AMAP_SET_BITS(struct amap_cq_context, valid, ctxt, 1);
+ AMAP_SET_BITS(struct amap_cq_context, solevent, ctxt, sol_evts);
+ AMAP_SET_BITS(struct amap_cq_context, eventable, ctxt, 1);
+ AMAP_SET_BITS(struct amap_cq_context, eqid, ctxt, eq->id);
+ AMAP_SET_BITS(struct amap_cq_context, armed, ctxt, 1);
+ AMAP_SET_BITS(struct amap_cq_context, func, ctxt,
+ PCI_FUNC(ctrl->pdev->devfn));
+ } else {
+ req->hdr.version = MBX_CMD_VER2;
+ req->page_size = 1;
+ AMAP_SET_BITS(struct amap_cq_context_v2, coalescwm,
+ ctxt, coalesce_wm);
+ AMAP_SET_BITS(struct amap_cq_context_v2, nodelay,
+ ctxt, no_delay);
+ AMAP_SET_BITS(struct amap_cq_context_v2, count, ctxt,
+ __ilog2_u32(cq->len / 256));
+ AMAP_SET_BITS(struct amap_cq_context_v2, valid, ctxt, 1);
+ AMAP_SET_BITS(struct amap_cq_context_v2, eventable, ctxt, 1);
+ AMAP_SET_BITS(struct amap_cq_context_v2, eqid, ctxt, eq->id);
+ AMAP_SET_BITS(struct amap_cq_context_v2, armed, ctxt, 1);
+ }
+
+ be_dws_cpu_to_le(ctxt, sizeof(req->context));
+
+ be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
+
+ status = be_mbox_notify(ctrl);
+ if (!status) {
+ cq->id = le16_to_cpu(resp->cq_id);
+ cq->created = true;
+ } else
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BC_%d : In be_cmd_cq_create, status=ox%08x\n",
+ status);
+
+ mutex_unlock(&ctrl->mbox_lock);
+
+ return status;
+}
+
+static u32 be_encoded_q_len(int q_len)
+{
+ u32 len_encoded = fls(q_len); /* log2(len) + 1 */
+ if (len_encoded == 16)
+ len_encoded = 0;
+ return len_encoded;
+}
+
+int beiscsi_cmd_mccq_create(struct beiscsi_hba *phba,
+ struct be_queue_info *mccq,
+ struct be_queue_info *cq)
+{
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_req_mcc_create_ext *req;
+ struct be_dma_mem *q_mem = &mccq->dma_mem;
+ struct be_ctrl_info *ctrl;
+ void *ctxt;
+ int status;
+
+ mutex_lock(&phba->ctrl.mbox_lock);
+ ctrl = &phba->ctrl;
+ wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ memset(wrb, 0, sizeof(*wrb));
+ req = embedded_payload(wrb);
+ ctxt = &req->context;
+
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_MCC_CREATE_EXT, sizeof(*req));
+
+ req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size);
+ req->async_evt_bitmap = 1 << ASYNC_EVENT_CODE_LINK_STATE;
+ req->async_evt_bitmap |= 1 << ASYNC_EVENT_CODE_ISCSI;
+ req->async_evt_bitmap |= 1 << ASYNC_EVENT_CODE_SLI;
+
+ AMAP_SET_BITS(struct amap_mcc_context, fid, ctxt,
+ PCI_FUNC(phba->pcidev->devfn));
+ AMAP_SET_BITS(struct amap_mcc_context, valid, ctxt, 1);
+ AMAP_SET_BITS(struct amap_mcc_context, ring_size, ctxt,
+ be_encoded_q_len(mccq->len));
+ AMAP_SET_BITS(struct amap_mcc_context, cq_id, ctxt, cq->id);
+
+ be_dws_cpu_to_le(ctxt, sizeof(req->context));
+
+ be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
+
+ status = be_mbox_notify(ctrl);
+ if (!status) {
+ struct be_cmd_resp_mcc_create *resp = embedded_payload(wrb);
+ mccq->id = le16_to_cpu(resp->id);
+ mccq->created = true;
+ }
+ mutex_unlock(&phba->ctrl.mbox_lock);
+
+ return status;
+}
+
+int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
+ int queue_type)
+{
+ struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_cmd_req_q_destroy *req = embedded_payload(wrb);
+ struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
+ u8 subsys = 0, opcode = 0;
+ int status;
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BC_%d : In beiscsi_cmd_q_destroy "
+ "queue_type : %d\n", queue_type);
+
+ mutex_lock(&ctrl->mbox_lock);
+ memset(wrb, 0, sizeof(*wrb));
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+ switch (queue_type) {
+ case QTYPE_EQ:
+ subsys = CMD_SUBSYSTEM_COMMON;
+ opcode = OPCODE_COMMON_EQ_DESTROY;
+ break;
+ case QTYPE_CQ:
+ subsys = CMD_SUBSYSTEM_COMMON;
+ opcode = OPCODE_COMMON_CQ_DESTROY;
+ break;
+ case QTYPE_MCCQ:
+ subsys = CMD_SUBSYSTEM_COMMON;
+ opcode = OPCODE_COMMON_MCC_DESTROY;
+ break;
+ case QTYPE_WRBQ:
+ subsys = CMD_SUBSYSTEM_ISCSI;
+ opcode = OPCODE_COMMON_ISCSI_WRBQ_DESTROY;
+ break;
+ case QTYPE_DPDUQ:
+ subsys = CMD_SUBSYSTEM_ISCSI;
+ opcode = OPCODE_COMMON_ISCSI_DEFQ_DESTROY;
+ break;
+ case QTYPE_SGL:
+ subsys = CMD_SUBSYSTEM_ISCSI;
+ opcode = OPCODE_COMMON_ISCSI_CFG_REMOVE_SGL_PAGES;
+ break;
+ default:
+ mutex_unlock(&ctrl->mbox_lock);
+ BUG();
+ }
+ be_cmd_hdr_prepare(&req->hdr, subsys, opcode, sizeof(*req));
+ if (queue_type != QTYPE_SGL)
+ req->id = cpu_to_le16(q->id);
+
+ status = be_mbox_notify(ctrl);
+
+ mutex_unlock(&ctrl->mbox_lock);
+ return status;
+}
+
+/**
+ * be_cmd_create_default_pdu_queue()- Create DEFQ for the adapter
+ * @ctrl: ptr to ctrl_info
+ * @cq: Completion Queue
+ * @dq: Default Queue
+ * @length: ring size
+ * @entry_size: size of each entry in DEFQ
+ * @is_header: Header or Data DEFQ
+ * @ulp_num: Bind to which ULP
+ *
+ * Create HDR/Data DEFQ for the passed ULP. Unsol PDU are posted
+ * on this queue by the FW
+ *
+ * return
+ * Success: 0
+ * Failure: Non-Zero Value
+ *
+ **/
+int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
+ struct be_queue_info *cq,
+ struct be_queue_info *dq, int length,
+ int entry_size, uint8_t is_header,
+ uint8_t ulp_num)
+{
+ struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_defq_create_req *req = embedded_payload(wrb);
+ struct be_dma_mem *q_mem = &dq->dma_mem;
+ struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
+ void *ctxt = &req->context;
+ int status;
+
+ mutex_lock(&ctrl->mbox_lock);
+ memset(wrb, 0, sizeof(*wrb));
+
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_DEFQ_CREATE, sizeof(*req));
+
+ req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size);
+ if (phba->fw_config.dual_ulp_aware) {
+ req->ulp_num = ulp_num;
+ req->dua_feature |= (1 << BEISCSI_DUAL_ULP_AWARE_BIT);
+ req->dua_feature |= (1 << BEISCSI_BIND_Q_TO_ULP_BIT);
+ }
+
+ if (is_chip_be2_be3r(phba)) {
+ AMAP_SET_BITS(struct amap_be_default_pdu_context,
+ rx_pdid, ctxt, 0);
+ AMAP_SET_BITS(struct amap_be_default_pdu_context,
+ rx_pdid_valid, ctxt, 1);
+ AMAP_SET_BITS(struct amap_be_default_pdu_context,
+ pci_func_id, ctxt, PCI_FUNC(ctrl->pdev->devfn));
+ AMAP_SET_BITS(struct amap_be_default_pdu_context,
+ ring_size, ctxt,
+ be_encoded_q_len(length /
+ sizeof(struct phys_addr)));
+ AMAP_SET_BITS(struct amap_be_default_pdu_context,
+ default_buffer_size, ctxt, entry_size);
+ AMAP_SET_BITS(struct amap_be_default_pdu_context,
+ cq_id_recv, ctxt, cq->id);
+ } else {
+ AMAP_SET_BITS(struct amap_default_pdu_context_ext,
+ rx_pdid, ctxt, 0);
+ AMAP_SET_BITS(struct amap_default_pdu_context_ext,
+ rx_pdid_valid, ctxt, 1);
+ AMAP_SET_BITS(struct amap_default_pdu_context_ext,
+ ring_size, ctxt,
+ be_encoded_q_len(length /
+ sizeof(struct phys_addr)));
+ AMAP_SET_BITS(struct amap_default_pdu_context_ext,
+ default_buffer_size, ctxt, entry_size);
+ AMAP_SET_BITS(struct amap_default_pdu_context_ext,
+ cq_id_recv, ctxt, cq->id);
+ }
+
+ be_dws_cpu_to_le(ctxt, sizeof(req->context));
+
+ be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
+
+ status = be_mbox_notify(ctrl);
+ if (!status) {
+ struct be_ring *defq_ring;
+ struct be_defq_create_resp *resp = embedded_payload(wrb);
+
+ dq->id = le16_to_cpu(resp->id);
+ dq->created = true;
+ if (is_header)
+ defq_ring = &phba->phwi_ctrlr->default_pdu_hdr[ulp_num];
+ else
+ defq_ring = &phba->phwi_ctrlr->
+ default_pdu_data[ulp_num];
+
+ defq_ring->id = dq->id;
+
+ if (!phba->fw_config.dual_ulp_aware) {
+ defq_ring->ulp_num = BEISCSI_ULP0;
+ defq_ring->doorbell_offset = DB_RXULP0_OFFSET;
+ } else {
+ defq_ring->ulp_num = resp->ulp_num;
+ defq_ring->doorbell_offset = resp->doorbell_offset;
+ }
+ }
+ mutex_unlock(&ctrl->mbox_lock);
+
+ return status;
+}
+
+/**
+ * be_cmd_wrbq_create()- Create WRBQ
+ * @ctrl: ptr to ctrl_info
+ * @q_mem: memory details for the queue
+ * @wrbq: queue info
+ * @pwrb_context: ptr to wrb_context
+ * @ulp_num: ULP on which the WRBQ is to be created
+ *
+ * Create WRBQ on the passed ULP_NUM.
+ *
+ **/
+int be_cmd_wrbq_create(struct be_ctrl_info *ctrl,
+ struct be_dma_mem *q_mem,
+ struct be_queue_info *wrbq,
+ struct hwi_wrb_context *pwrb_context,
+ uint8_t ulp_num)
+{
+ struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_wrbq_create_req *req = embedded_payload(wrb);
+ struct be_wrbq_create_resp *resp = embedded_payload(wrb);
+ struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
+ int status;
+
+ mutex_lock(&ctrl->mbox_lock);
+ memset(wrb, 0, sizeof(*wrb));
+
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_WRBQ_CREATE, sizeof(*req));
+ req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size);
+
+ if (phba->fw_config.dual_ulp_aware) {
+ req->ulp_num = ulp_num;
+ req->dua_feature |= (1 << BEISCSI_DUAL_ULP_AWARE_BIT);
+ req->dua_feature |= (1 << BEISCSI_BIND_Q_TO_ULP_BIT);
+ }
+
+ be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
+
+ status = be_mbox_notify(ctrl);
+ if (!status) {
+ wrbq->id = le16_to_cpu(resp->cid);
+ wrbq->created = true;
+
+ pwrb_context->cid = wrbq->id;
+ if (!phba->fw_config.dual_ulp_aware) {
+ pwrb_context->doorbell_offset = DB_TXULP0_OFFSET;
+ pwrb_context->ulp_num = BEISCSI_ULP0;
+ } else {
+ pwrb_context->ulp_num = resp->ulp_num;
+ pwrb_context->doorbell_offset = resp->doorbell_offset;
+ }
+ }
+ mutex_unlock(&ctrl->mbox_lock);
+ return status;
+}
+
+int be_cmd_iscsi_post_template_hdr(struct be_ctrl_info *ctrl,
+ struct be_dma_mem *q_mem)
+{
+ struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_post_template_pages_req *req = embedded_payload(wrb);
+ int status;
+
+ mutex_lock(&ctrl->mbox_lock);
+
+ memset(wrb, 0, sizeof(*wrb));
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_ADD_TEMPLATE_HEADER_BUFFERS,
+ sizeof(*req));
+
+ req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size);
+ req->type = BEISCSI_TEMPLATE_HDR_TYPE_ISCSI;
+ be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
+
+ status = be_mbox_notify(ctrl);
+ mutex_unlock(&ctrl->mbox_lock);
+ return status;
+}
+
+int be_cmd_iscsi_remove_template_hdr(struct be_ctrl_info *ctrl)
+{
+ struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_remove_template_pages_req *req = embedded_payload(wrb);
+ int status;
+
+ mutex_lock(&ctrl->mbox_lock);
+
+ memset(wrb, 0, sizeof(*wrb));
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_REMOVE_TEMPLATE_HEADER_BUFFERS,
+ sizeof(*req));
+
+ req->type = BEISCSI_TEMPLATE_HDR_TYPE_ISCSI;
+
+ status = be_mbox_notify(ctrl);
+ mutex_unlock(&ctrl->mbox_lock);
+ return status;
+}
+
+int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl,
+ struct be_dma_mem *q_mem,
+ u32 page_offset, u32 num_pages)
+{
+ struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_post_sgl_pages_req *req = embedded_payload(wrb);
+ struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
+ int status;
+ unsigned int curr_pages;
+ u32 internal_page_offset = 0;
+ u32 temp_num_pages = num_pages;
+
+ if (num_pages == 0xff)
+ num_pages = 1;
+
+ mutex_lock(&ctrl->mbox_lock);
+ do {
+ memset(wrb, 0, sizeof(*wrb));
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_CFG_POST_SGL_PAGES,
+ sizeof(*req));
+ curr_pages = BE_NUMBER_OF_FIELD(struct be_post_sgl_pages_req,
+ pages);
+ req->num_pages = min(num_pages, curr_pages);
+ req->page_offset = page_offset;
+ be_cmd_page_addrs_prepare(req->pages, req->num_pages, q_mem);
+ q_mem->dma = q_mem->dma + (req->num_pages * PAGE_SIZE);
+ internal_page_offset += req->num_pages;
+ page_offset += req->num_pages;
+ num_pages -= req->num_pages;
+
+ if (temp_num_pages == 0xff)
+ req->num_pages = temp_num_pages;
+
+ status = be_mbox_notify(ctrl);
+ if (status) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BC_%d : FW CMD to map iscsi frags failed.\n");
+
+ goto error;
+ }
+ } while (num_pages > 0);
+error:
+ mutex_unlock(&ctrl->mbox_lock);
+ if (status != 0)
+ beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL);
+ return status;
+}
+
+/**
+ * be_cmd_set_vlan()- Configure VLAN paramters on the adapter
+ * @phba: device priv structure instance
+ * @vlan_tag: TAG to be set
+ *
+ * Set the VLAN_TAG for the adapter or Disable VLAN on adapter
+ *
+ * returns
+ * TAG for the MBX Cmd
+ * **/
+int be_cmd_set_vlan(struct beiscsi_hba *phba,
+ uint16_t vlan_tag)
+{
+ unsigned int tag;
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_set_vlan_req *req;
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+
+ if (mutex_lock_interruptible(&ctrl->mbox_lock))
+ return 0;
+ wrb = alloc_mcc_wrb(phba, &tag);
+ if (!wrb) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return 0;
+ }
+
+ req = embedded_payload(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(*wrb), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_NTWK_SET_VLAN,
+ sizeof(*req));
+
+ req->interface_hndl = phba->interface_handle;
+ req->vlan_priority = vlan_tag;
+
+ be_mcc_notify(phba, tag);
+ mutex_unlock(&ctrl->mbox_lock);
+
+ return tag;
+}
+
+int beiscsi_check_supported_fw(struct be_ctrl_info *ctrl,
+ struct beiscsi_hba *phba)
+{
+ struct be_dma_mem nonemb_cmd;
+ struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_mgmt_controller_attributes *req;
+ struct be_sge *sge = nonembedded_sgl(wrb);
+ int status = 0;
+
+ nonemb_cmd.va = dma_alloc_coherent(&ctrl->pdev->dev,
+ sizeof(struct be_mgmt_controller_attributes),
+ &nonemb_cmd.dma, GFP_KERNEL);
+ if (nonemb_cmd.va == NULL) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d : dma_alloc_coherent failed in %s\n",
+ __func__);
+ return -ENOMEM;
+ }
+ nonemb_cmd.size = sizeof(struct be_mgmt_controller_attributes);
+ req = nonemb_cmd.va;
+ memset(req, 0, sizeof(*req));
+ mutex_lock(&ctrl->mbox_lock);
+ memset(wrb, 0, sizeof(*wrb));
+ be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_GET_CNTL_ATTRIBUTES, sizeof(*req));
+ sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd.dma));
+ sge->pa_lo = cpu_to_le32(nonemb_cmd.dma & 0xFFFFFFFF);
+ sge->len = cpu_to_le32(nonemb_cmd.size);
+ status = be_mbox_notify(ctrl);
+ if (!status) {
+ struct be_mgmt_controller_attributes_resp *resp = nonemb_cmd.va;
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BG_%d : Firmware Version of CMD : %s\n"
+ "Firmware Version is : %s\n"
+ "Developer Build, not performing version check...\n",
+ resp->params.hba_attribs
+ .flashrom_version_string,
+ resp->params.hba_attribs.
+ firmware_version_string);
+
+ phba->fw_config.iscsi_features =
+ resp->params.hba_attribs.iscsi_features;
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : phba->fw_config.iscsi_features = %d\n",
+ phba->fw_config.iscsi_features);
+ memcpy(phba->fw_ver_str, resp->params.hba_attribs.
+ firmware_version_string, BEISCSI_VER_STRLEN);
+ } else
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d : Failed in beiscsi_check_supported_fw\n");
+ mutex_unlock(&ctrl->mbox_lock);
+ if (nonemb_cmd.va)
+ dma_free_coherent(&ctrl->pdev->dev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
+
+ return status;
+}
+
+/**
+ * beiscsi_get_fw_config()- Get the FW config for the function
+ * @ctrl: ptr to Ctrl Info
+ * @phba: ptr to the dev priv structure
+ *
+ * Get the FW config and resources available for the function.
+ * The resources are created based on the count received here.
+ *
+ * return
+ * Success: 0
+ * Failure: Non-Zero Value
+ **/
+int beiscsi_get_fw_config(struct be_ctrl_info *ctrl,
+ struct beiscsi_hba *phba)
+{
+ struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_fw_cfg *pfw_cfg = embedded_payload(wrb);
+ uint32_t cid_count, icd_count;
+ int status = -EINVAL;
+ uint8_t ulp_num = 0;
+
+ mutex_lock(&ctrl->mbox_lock);
+ memset(wrb, 0, sizeof(*wrb));
+ be_wrb_hdr_prepare(wrb, sizeof(*pfw_cfg), true, 0);
+
+ be_cmd_hdr_prepare(&pfw_cfg->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_QUERY_FIRMWARE_CONFIG,
+ EMBED_MBX_MAX_PAYLOAD_SIZE);
+
+ if (be_mbox_notify(ctrl)) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d : Failed in beiscsi_get_fw_config\n");
+ goto fail_init;
+ }
+
+ /* FW response formats depend on port id */
+ phba->fw_config.phys_port = pfw_cfg->phys_port;
+ if (phba->fw_config.phys_port >= BEISCSI_PHYS_PORT_MAX) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d : invalid physical port id %d\n",
+ phba->fw_config.phys_port);
+ goto fail_init;
+ }
+
+ /* populate and check FW config against min and max values */
+ if (!is_chip_be2_be3r(phba)) {
+ phba->fw_config.eqid_count = pfw_cfg->eqid_count;
+ phba->fw_config.cqid_count = pfw_cfg->cqid_count;
+ if (phba->fw_config.eqid_count == 0 ||
+ phba->fw_config.eqid_count > 2048) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d : invalid EQ count %d\n",
+ phba->fw_config.eqid_count);
+ goto fail_init;
+ }
+ if (phba->fw_config.cqid_count == 0 ||
+ phba->fw_config.cqid_count > 4096) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d : invalid CQ count %d\n",
+ phba->fw_config.cqid_count);
+ goto fail_init;
+ }
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BG_%d : EQ_Count : %d CQ_Count : %d\n",
+ phba->fw_config.eqid_count,
+ phba->fw_config.cqid_count);
+ }
+
+ /**
+ * Check on which all ULP iSCSI Protocol is loaded.
+ * Set the Bit for those ULP. This set flag is used
+ * at all places in the code to check on which ULP
+ * iSCSi Protocol is loaded
+ **/
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+ if (pfw_cfg->ulp[ulp_num].ulp_mode &
+ BEISCSI_ULP_ISCSI_INI_MODE) {
+ set_bit(ulp_num, &phba->fw_config.ulp_supported);
+
+ /* Get the CID, ICD and Chain count for each ULP */
+ phba->fw_config.iscsi_cid_start[ulp_num] =
+ pfw_cfg->ulp[ulp_num].sq_base;
+ phba->fw_config.iscsi_cid_count[ulp_num] =
+ pfw_cfg->ulp[ulp_num].sq_count;
+
+ phba->fw_config.iscsi_icd_start[ulp_num] =
+ pfw_cfg->ulp[ulp_num].icd_base;
+ phba->fw_config.iscsi_icd_count[ulp_num] =
+ pfw_cfg->ulp[ulp_num].icd_count;
+
+ phba->fw_config.iscsi_chain_start[ulp_num] =
+ pfw_cfg->chain_icd[ulp_num].chain_base;
+ phba->fw_config.iscsi_chain_count[ulp_num] =
+ pfw_cfg->chain_icd[ulp_num].chain_count;
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BG_%d : Function loaded on ULP : %d\n"
+ "\tiscsi_cid_count : %d\n"
+ "\tiscsi_cid_start : %d\n"
+ "\t iscsi_icd_count : %d\n"
+ "\t iscsi_icd_start : %d\n",
+ ulp_num,
+ phba->fw_config.
+ iscsi_cid_count[ulp_num],
+ phba->fw_config.
+ iscsi_cid_start[ulp_num],
+ phba->fw_config.
+ iscsi_icd_count[ulp_num],
+ phba->fw_config.
+ iscsi_icd_start[ulp_num]);
+ }
+ }
+
+ if (phba->fw_config.ulp_supported == 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d : iSCSI initiator mode not set: ULP0 %x ULP1 %x\n",
+ pfw_cfg->ulp[BEISCSI_ULP0].ulp_mode,
+ pfw_cfg->ulp[BEISCSI_ULP1].ulp_mode);
+ goto fail_init;
+ }
+
+ /**
+ * ICD is shared among ULPs. Use icd_count of any one loaded ULP
+ **/
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
+ if (test_bit(ulp_num, &phba->fw_config.ulp_supported))
+ break;
+ icd_count = phba->fw_config.iscsi_icd_count[ulp_num];
+ if (icd_count == 0 || icd_count > 65536) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d: invalid ICD count %d\n", icd_count);
+ goto fail_init;
+ }
+
+ cid_count = BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP0) +
+ BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP1);
+ if (cid_count == 0 || cid_count > 4096) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BG_%d: invalid CID count %d\n", cid_count);
+ goto fail_init;
+ }
+
+ /**
+ * Check FW is dual ULP aware i.e. can handle either
+ * of the protocols.
+ */
+ phba->fw_config.dual_ulp_aware = (pfw_cfg->function_mode &
+ BEISCSI_FUNC_DUA_MODE);
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BG_%d : DUA Mode : 0x%x\n",
+ phba->fw_config.dual_ulp_aware);
+
+ /* all set, continue using this FW config */
+ status = 0;
+fail_init:
+ mutex_unlock(&ctrl->mbox_lock);
+ return status;
+}
+
+/**
+ * beiscsi_get_port_name()- Get port name for the function
+ * @ctrl: ptr to Ctrl Info
+ * @phba: ptr to the dev priv structure
+ *
+ * Get the alphanumeric character for port
+ *
+ **/
+int beiscsi_get_port_name(struct be_ctrl_info *ctrl, struct beiscsi_hba *phba)
+{
+ int ret = 0;
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_get_port_name *ioctl;
+
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ memset(wrb, 0, sizeof(*wrb));
+ ioctl = embedded_payload(wrb);
+
+ be_wrb_hdr_prepare(wrb, sizeof(*ioctl), true, 0);
+ be_cmd_hdr_prepare(&ioctl->h.req_hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_GET_PORT_NAME,
+ EMBED_MBX_MAX_PAYLOAD_SIZE);
+ ret = be_mbox_notify(ctrl);
+ phba->port_name = 0;
+ if (!ret) {
+ phba->port_name = ioctl->p.resp.port_names >>
+ (phba->fw_config.phys_port * 8) & 0xff;
+ } else {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BG_%d : GET_PORT_NAME ret 0x%x status 0x%x\n",
+ ret, ioctl->h.resp_hdr.status);
+ }
+
+ if (phba->port_name == 0)
+ phba->port_name = '?';
+
+ mutex_unlock(&ctrl->mbox_lock);
+ return ret;
+}
+
+int beiscsi_set_host_data(struct beiscsi_hba *phba)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_cmd_set_host_data *ioctl;
+ struct be_mcc_wrb *wrb;
+ int ret = 0;
+
+ if (is_chip_be2_be3r(phba))
+ return ret;
+
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ memset(wrb, 0, sizeof(*wrb));
+ ioctl = embedded_payload(wrb);
+
+ be_wrb_hdr_prepare(wrb, sizeof(*ioctl), true, 0);
+ be_cmd_hdr_prepare(&ioctl->h.req_hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_SET_HOST_DATA,
+ EMBED_MBX_MAX_PAYLOAD_SIZE);
+ ioctl->param.req.param_id = BE_CMD_SET_HOST_PARAM_ID;
+ ioctl->param.req.param_len =
+ snprintf((char *)ioctl->param.req.param_data,
+ sizeof(ioctl->param.req.param_data),
+ "Linux iSCSI v%s", BUILD_STR);
+ ioctl->param.req.param_len = ALIGN(ioctl->param.req.param_len + 1, 4);
+ if (ioctl->param.req.param_len > BE_CMD_MAX_DRV_VERSION)
+ ioctl->param.req.param_len = BE_CMD_MAX_DRV_VERSION;
+ ret = be_mbox_notify(ctrl);
+ if (!ret) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BG_%d : HBA set host driver version\n");
+ } else {
+ /**
+ * Check "MCC_STATUS_INVALID_LENGTH" for SKH.
+ * Older FW versions return this error.
+ */
+ if (ret == MCC_STATUS_ILLEGAL_REQUEST ||
+ ret == MCC_STATUS_INVALID_LENGTH)
+ __beiscsi_log(phba, KERN_INFO,
+ "BG_%d : HBA failed to set host driver version\n");
+ }
+
+ mutex_unlock(&ctrl->mbox_lock);
+ return ret;
+}
+
+int beiscsi_set_uer_feature(struct beiscsi_hba *phba)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_cmd_set_features *ioctl;
+ struct be_mcc_wrb *wrb;
+ int ret = 0;
+
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ memset(wrb, 0, sizeof(*wrb));
+ ioctl = embedded_payload(wrb);
+
+ be_wrb_hdr_prepare(wrb, sizeof(*ioctl), true, 0);
+ be_cmd_hdr_prepare(&ioctl->h.req_hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_SET_FEATURES,
+ EMBED_MBX_MAX_PAYLOAD_SIZE);
+ ioctl->feature = BE_CMD_SET_FEATURE_UER;
+ ioctl->param_len = sizeof(ioctl->param.req);
+ ioctl->param.req.uer = BE_CMD_UER_SUPP_BIT;
+ ret = be_mbox_notify(ctrl);
+ if (!ret) {
+ phba->ue2rp = ioctl->param.resp.ue2rp;
+ set_bit(BEISCSI_HBA_UER_SUPP, &phba->state);
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BG_%d : HBA error recovery supported\n");
+ } else {
+ /**
+ * Check "MCC_STATUS_INVALID_LENGTH" for SKH.
+ * Older FW versions return this error.
+ */
+ if (ret == MCC_STATUS_ILLEGAL_REQUEST ||
+ ret == MCC_STATUS_INVALID_LENGTH)
+ __beiscsi_log(phba, KERN_INFO,
+ "BG_%d : HBA error recovery not supported\n");
+ }
+
+ mutex_unlock(&ctrl->mbox_lock);
+ return ret;
+}
+
+static u32 beiscsi_get_post_stage(struct beiscsi_hba *phba)
+{
+ u32 sem;
+
+ if (is_chip_be2_be3r(phba))
+ sem = ioread32(phba->csr_va + SLIPORT_SEMAPHORE_OFFSET_BEx);
+ else
+ pci_read_config_dword(phba->pcidev,
+ SLIPORT_SEMAPHORE_OFFSET_SH, &sem);
+ return sem;
+}
+
+int beiscsi_check_fw_rdy(struct beiscsi_hba *phba)
+{
+ u32 loop, post, rdy = 0;
+
+ loop = 1000;
+ while (loop--) {
+ post = beiscsi_get_post_stage(phba);
+ if (post & POST_ERROR_BIT)
+ break;
+ if ((post & POST_STAGE_MASK) == POST_STAGE_ARMFW_RDY) {
+ rdy = 1;
+ break;
+ }
+ msleep(60);
+ }
+
+ if (!rdy) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BC_%d : FW not ready 0x%x\n", post);
+ }
+
+ return rdy;
+}
+
+int beiscsi_cmd_function_reset(struct beiscsi_hba *phba)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_post_sgl_pages_req *req;
+ int status;
+
+ mutex_lock(&ctrl->mbox_lock);
+
+ req = embedded_payload(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_FUNCTION_RESET, sizeof(*req));
+ status = be_mbox_notify(ctrl);
+
+ mutex_unlock(&ctrl->mbox_lock);
+ return status;
+}
+
+int beiscsi_cmd_special_wrb(struct be_ctrl_info *ctrl, u32 load)
+{
+ struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
+ u8 *endian_check;
+ int status;
+
+ mutex_lock(&ctrl->mbox_lock);
+ memset(wrb, 0, sizeof(*wrb));
+
+ endian_check = (u8 *) wrb;
+ if (load) {
+ /* to start communicating */
+ *endian_check++ = 0xFF;
+ *endian_check++ = 0x12;
+ *endian_check++ = 0x34;
+ *endian_check++ = 0xFF;
+ *endian_check++ = 0xFF;
+ *endian_check++ = 0x56;
+ *endian_check++ = 0x78;
+ *endian_check++ = 0xFF;
+ } else {
+ /* to stop communicating */
+ *endian_check++ = 0xFF;
+ *endian_check++ = 0xAA;
+ *endian_check++ = 0xBB;
+ *endian_check++ = 0xFF;
+ *endian_check++ = 0xFF;
+ *endian_check++ = 0xCC;
+ *endian_check++ = 0xDD;
+ *endian_check = 0xFF;
+ }
+ be_dws_cpu_to_le(wrb, sizeof(*wrb));
+
+ status = be_mbox_notify(ctrl);
+ if (status)
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BC_%d : special WRB message failed\n");
+ mutex_unlock(&ctrl->mbox_lock);
+ return status;
+}
+
+int beiscsi_init_sliport(struct beiscsi_hba *phba)
+{
+ int status;
+
+ /* check POST stage before talking to FW */
+ status = beiscsi_check_fw_rdy(phba);
+ if (!status)
+ return -EIO;
+
+ /* clear all error states after checking FW rdy */
+ phba->state &= ~BEISCSI_HBA_IN_ERR;
+
+ /* check again UER support */
+ phba->state &= ~BEISCSI_HBA_UER_SUPP;
+
+ /*
+ * SLI COMMON_FUNCTION_RESET completion is indicated by BMBX RDY bit.
+ * It should clean up any stale info in FW for this fn.
+ */
+ status = beiscsi_cmd_function_reset(phba);
+ if (status) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BC_%d : SLI Function Reset failed\n");
+ return status;
+ }
+
+ /* indicate driver is loading */
+ return beiscsi_cmd_special_wrb(&phba->ctrl, 1);
+}
+
+/**
+ * beiscsi_cmd_iscsi_cleanup()- Inform FW to cleanup EP data structures.
+ * @phba: pointer to dev priv structure
+ * @ulp: ULP number.
+ *
+ * return
+ * Success: 0
+ * Failure: Non-Zero Value
+ **/
+int beiscsi_cmd_iscsi_cleanup(struct beiscsi_hba *phba, unsigned short ulp)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct iscsi_cleanup_req_v1 *req_v1;
+ struct iscsi_cleanup_req *req;
+ u16 hdr_ring_id, data_ring_id;
+ struct be_mcc_wrb *wrb;
+ int status;
+
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = wrb_from_mbox(&ctrl->mbox_mem);
+
+ hdr_ring_id = HWI_GET_DEF_HDRQ_ID(phba, ulp);
+ data_ring_id = HWI_GET_DEF_BUFQ_ID(phba, ulp);
+ if (is_chip_be2_be3r(phba)) {
+ req = embedded_payload(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_CLEANUP, sizeof(*req));
+ req->chute = (1 << ulp);
+ /* BE2/BE3 FW creates 8-bit ring id */
+ req->hdr_ring_id = hdr_ring_id;
+ req->data_ring_id = data_ring_id;
+ } else {
+ req_v1 = embedded_payload(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(*req_v1), true, 0);
+ be_cmd_hdr_prepare(&req_v1->hdr, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_CLEANUP,
+ sizeof(*req_v1));
+ req_v1->hdr.version = 1;
+ req_v1->chute = (1 << ulp);
+ req_v1->hdr_ring_id = cpu_to_le16(hdr_ring_id);
+ req_v1->data_ring_id = cpu_to_le16(data_ring_id);
+ }
+
+ status = be_mbox_notify(ctrl);
+ if (status)
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+ "BG_%d : %s failed %d\n", __func__, ulp);
+ mutex_unlock(&ctrl->mbox_lock);
+ return status;
+}
+
+/*
+ * beiscsi_detect_ue()- Detect Unrecoverable Error on adapter
+ * @phba: Driver priv structure
+ *
+ * Read registers linked to UE and check for the UE status
+ **/
+int beiscsi_detect_ue(struct beiscsi_hba *phba)
+{
+ uint32_t ue_mask_hi = 0, ue_mask_lo = 0;
+ uint32_t ue_hi = 0, ue_lo = 0;
+ uint8_t i = 0;
+ int ret = 0;
+
+ pci_read_config_dword(phba->pcidev,
+ PCICFG_UE_STATUS_LOW, &ue_lo);
+ pci_read_config_dword(phba->pcidev,
+ PCICFG_UE_STATUS_MASK_LOW,
+ &ue_mask_lo);
+ pci_read_config_dword(phba->pcidev,
+ PCICFG_UE_STATUS_HIGH,
+ &ue_hi);
+ pci_read_config_dword(phba->pcidev,
+ PCICFG_UE_STATUS_MASK_HI,
+ &ue_mask_hi);
+
+ ue_lo = (ue_lo & ~ue_mask_lo);
+ ue_hi = (ue_hi & ~ue_mask_hi);
+
+
+ if (ue_lo || ue_hi) {
+ set_bit(BEISCSI_HBA_IN_UE, &phba->state);
+ __beiscsi_log(phba, KERN_ERR,
+ "BC_%d : HBA error detected\n");
+ ret = 1;
+ }
+
+ if (ue_lo) {
+ for (i = 0; ue_lo; ue_lo >>= 1, i++) {
+ if (ue_lo & 1)
+ __beiscsi_log(phba, KERN_ERR,
+ "BC_%d : UE_LOW %s bit set\n",
+ desc_ue_status_low[i]);
+ }
+ }
+
+ if (ue_hi) {
+ for (i = 0; ue_hi; ue_hi >>= 1, i++) {
+ if (ue_hi & 1)
+ __beiscsi_log(phba, KERN_ERR,
+ "BC_%d : UE_HIGH %s bit set\n",
+ desc_ue_status_hi[i]);
+ }
+ }
+ return ret;
+}
+
+/*
+ * beiscsi_detect_tpe()- Detect Transient Parity Error on adapter
+ * @phba: Driver priv structure
+ *
+ * Read SLIPORT SEMAPHORE register to check for UER
+ *
+ **/
+int beiscsi_detect_tpe(struct beiscsi_hba *phba)
+{
+ u32 post, status;
+ int ret = 0;
+
+ post = beiscsi_get_post_stage(phba);
+ status = post & POST_STAGE_MASK;
+ if ((status & POST_ERR_RECOVERY_CODE_MASK) ==
+ POST_STAGE_RECOVERABLE_ERR) {
+ set_bit(BEISCSI_HBA_IN_TPE, &phba->state);
+ __beiscsi_log(phba, KERN_INFO,
+ "BC_%d : HBA error recoverable: 0x%x\n", post);
+ ret = 1;
+ } else {
+ __beiscsi_log(phba, KERN_INFO,
+ "BC_%d : HBA in UE: 0x%x\n", post);
+ }
+
+ return ret;
+}
diff --git a/drivers/scsi/be2iscsi/be_cmds.h b/drivers/scsi/be2iscsi/be_cmds.h
new file mode 100644
index 000000000..5f9f0b18d
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be_cmds.h
@@ -0,0 +1,1461 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2017 Broadcom. All Rights Reserved.
+ * The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
+ *
+ * Contact Information:
+ * linux-drivers@broadcom.com
+ */
+
+#ifndef BEISCSI_CMDS_H
+#define BEISCSI_CMDS_H
+
+/**
+ * The driver sends configuration and managements command requests to the
+ * firmware in the BE. These requests are communicated to the processor
+ * using Work Request Blocks (WRBs) submitted to the MCC-WRB ring or via one
+ * WRB inside a MAILBOX.
+ * The commands are serviced by the ARM processor in the OneConnect's MPU.
+ */
+struct be_sge {
+ __le32 pa_lo;
+ __le32 pa_hi;
+ __le32 len;
+};
+
+struct be_mcc_wrb {
+ u32 emb_sgecnt_special; /* dword 0 */
+ /* bits 0 - embedded */
+ /* bits 1 - 2 reserved */
+ /* bits 3 - 7 sge count */
+ /* bits 8 - 23 reserved */
+ /* bits 24 - 31 special */
+#define MCC_WRB_EMBEDDED_MASK 1
+#define MCC_WRB_SGE_CNT_SHIFT 3
+#define MCC_WRB_SGE_CNT_MASK 0x1F
+ u32 payload_length; /* dword 1 */
+ u32 tag0; /* dword 2 */
+ u32 tag1; /* dword 3 */
+ u32 rsvd; /* dword 4 */
+ union {
+#define EMBED_MBX_MAX_PAYLOAD_SIZE 220
+ u8 embedded_payload[236]; /* used by embedded cmds */
+ struct be_sge sgl[19]; /* used by non-embedded cmds */
+ } payload;
+};
+
+#define CQE_FLAGS_VALID_MASK (1 << 31)
+#define CQE_FLAGS_ASYNC_MASK (1 << 30)
+#define CQE_FLAGS_COMPLETED_MASK (1 << 28)
+#define CQE_FLAGS_CONSUMED_MASK (1 << 27)
+
+/* Completion Status */
+#define MCC_STATUS_SUCCESS 0x0
+#define MCC_STATUS_FAILED 0x1
+#define MCC_STATUS_ILLEGAL_REQUEST 0x2
+#define MCC_STATUS_ILLEGAL_FIELD 0x3
+#define MCC_STATUS_INSUFFICIENT_BUFFER 0x4
+#define MCC_STATUS_INVALID_LENGTH 0x74
+
+#define CQE_STATUS_COMPL_MASK 0xFFFF
+#define CQE_STATUS_COMPL_SHIFT 0 /* bits 0 - 15 */
+#define CQE_STATUS_EXTD_MASK 0xFFFF
+#define CQE_STATUS_EXTD_SHIFT 16 /* bits 31 - 16 */
+#define CQE_STATUS_ADDL_MASK 0xFF00
+#define CQE_STATUS_ADDL_SHIFT 8
+#define CQE_STATUS_MASK 0xFF
+#define CQE_STATUS_WRB_MASK 0xFF0000
+#define CQE_STATUS_WRB_SHIFT 16
+
+#define BEISCSI_HOST_MBX_TIMEOUT (110 * 1000)
+#define BEISCSI_FW_MBX_TIMEOUT 100
+
+/* MBOX Command VER */
+#define MBX_CMD_VER1 0x01
+#define MBX_CMD_VER2 0x02
+
+struct be_mcc_compl {
+ u32 status; /* dword 0 */
+ u32 tag0; /* dword 1 */
+ u32 tag1; /* dword 2 */
+ u32 flags; /* dword 3 */
+};
+
+/********* Mailbox door bell *************/
+/**
+ * Used for driver communication with the FW.
+ * The software must write this register twice to post any command. First,
+ * it writes the register with hi=1 and the upper bits of the physical address
+ * for the MAILBOX structure. Software must poll the ready bit until this
+ * is acknowledged. Then, sotware writes the register with hi=0 with the lower
+ * bits in the address. It must poll the ready bit until the command is
+ * complete. Upon completion, the MAILBOX will contain a valid completion
+ * queue entry.
+ */
+#define MPU_MAILBOX_DB_OFFSET 0x160
+#define MPU_MAILBOX_DB_RDY_MASK 0x1 /* bit 0 */
+#define MPU_MAILBOX_DB_HI_MASK 0x2 /* bit 1 */
+
+/********** MPU semphore: used for SH & BE ******************/
+#define SLIPORT_SOFTRESET_OFFSET 0x5c /* CSR BAR offset */
+#define SLIPORT_SEMAPHORE_OFFSET_BEx 0xac /* CSR BAR offset */
+#define SLIPORT_SEMAPHORE_OFFSET_SH 0x94 /* PCI-CFG offset */
+#define POST_STAGE_MASK 0x0000FFFF
+#define POST_ERROR_BIT 0x80000000
+#define POST_ERR_RECOVERY_CODE_MASK 0xF000
+
+/* Soft Reset register masks */
+#define SLIPORT_SOFTRESET_SR_MASK 0x00000080 /* SR bit */
+
+/* MPU semphore POST stage values */
+#define POST_STAGE_AWAITING_HOST_RDY 0x1 /* FW awaiting goahead from host */
+#define POST_STAGE_HOST_RDY 0x2 /* Host has given go-ahed to FW */
+#define POST_STAGE_BE_RESET 0x3 /* Host wants to reset chip */
+#define POST_STAGE_ARMFW_RDY 0xC000 /* FW is done with POST */
+#define POST_STAGE_RECOVERABLE_ERR 0xE000 /* Recoverable err detected */
+
+/********** MCC door bell ************/
+#define DB_MCCQ_OFFSET 0x140
+#define DB_MCCQ_RING_ID_MASK 0xFFFF /* bits 0 - 15 */
+/* Number of entries posted */
+#define DB_MCCQ_NUM_POSTED_SHIFT 16 /* bits 16 - 29 */
+
+/**
+ * When the async bit of mcc_compl is set, the last 4 bytes of
+ * mcc_compl is interpreted as follows:
+ */
+#define ASYNC_TRAILER_EVENT_CODE_SHIFT 8 /* bits 8 - 15 */
+#define ASYNC_TRAILER_EVENT_CODE_MASK 0xFF
+#define ASYNC_EVENT_CODE_LINK_STATE 0x1
+#define ASYNC_EVENT_CODE_ISCSI 0x4
+#define ASYNC_EVENT_CODE_SLI 0x11
+
+#define ASYNC_TRAILER_EVENT_TYPE_SHIFT 16 /* bits 16 - 23 */
+#define ASYNC_TRAILER_EVENT_TYPE_MASK 0xFF
+
+/* iSCSI events */
+#define ASYNC_EVENT_NEW_ISCSI_TGT_DISC 0x4
+#define ASYNC_EVENT_NEW_ISCSI_CONN 0x5
+#define ASYNC_EVENT_NEW_TCP_CONN 0x7
+
+/* SLI events */
+#define ASYNC_SLI_EVENT_TYPE_MISCONFIGURED 0x9
+#define ASYNC_SLI_LINK_EFFECT_VALID(le) (le & 0x80)
+#define ASYNC_SLI_LINK_EFFECT_SEV(le) ((le >> 1) & 0x03)
+#define ASYNC_SLI_LINK_EFFECT_STATE(le) (le & 0x01)
+
+struct be_async_event_trailer {
+ u32 code;
+};
+
+enum {
+ ASYNC_EVENT_LINK_DOWN = 0x0,
+ ASYNC_EVENT_LINK_UP = 0x1,
+};
+
+/**
+ * When the event code of an async trailer is link-state, the mcc_compl
+ * must be interpreted as follows
+ */
+struct be_async_event_link_state {
+ u8 physical_port;
+ u8 port_link_status;
+/**
+ * ASYNC_EVENT_LINK_DOWN 0x0
+ * ASYNC_EVENT_LINK_UP 0x1
+ * ASYNC_EVENT_LINK_LOGICAL_DOWN 0x2
+ * ASYNC_EVENT_LINK_LOGICAL_UP 0x3
+ */
+#define BE_ASYNC_LINK_UP_MASK 0x01
+ u8 port_duplex;
+ u8 port_speed;
+/* BE2ISCSI_LINK_SPEED_ZERO 0x00 - no link */
+#define BE2ISCSI_LINK_SPEED_10MBPS 0x01
+#define BE2ISCSI_LINK_SPEED_100MBPS 0x02
+#define BE2ISCSI_LINK_SPEED_1GBPS 0x03
+#define BE2ISCSI_LINK_SPEED_10GBPS 0x04
+#define BE2ISCSI_LINK_SPEED_25GBPS 0x06
+#define BE2ISCSI_LINK_SPEED_40GBPS 0x07
+ u8 port_fault;
+ u8 event_reason;
+ u16 qos_link_speed;
+ u32 event_tag;
+ struct be_async_event_trailer trailer;
+} __packed;
+
+/**
+ * When async-trailer is SLI event, mcc_compl is interpreted as
+ */
+struct be_async_event_sli {
+ u32 event_data1;
+ u32 event_data2;
+ u32 reserved;
+ u32 trailer;
+} __packed;
+
+struct be_mcc_mailbox {
+ struct be_mcc_wrb wrb;
+ struct be_mcc_compl compl;
+};
+
+/* Type of subsystems supported by FW */
+#define CMD_SUBSYSTEM_COMMON 0x1
+#define CMD_SUBSYSTEM_ISCSI 0x2
+#define CMD_SUBSYSTEM_ETH 0x3
+#define CMD_SUBSYSTEM_ISCSI_INI 0x6
+#define CMD_COMMON_TCP_UPLOAD 0x1
+
+/**
+ * List of common opcodes subsystem CMD_SUBSYSTEM_COMMON
+ * These opcodes are unique for each subsystem defined above
+ */
+#define OPCODE_COMMON_CQ_CREATE 12
+#define OPCODE_COMMON_EQ_CREATE 13
+#define OPCODE_COMMON_MCC_CREATE 21
+#define OPCODE_COMMON_MCC_CREATE_EXT 90
+#define OPCODE_COMMON_ADD_TEMPLATE_HEADER_BUFFERS 24
+#define OPCODE_COMMON_REMOVE_TEMPLATE_HEADER_BUFFERS 25
+#define OPCODE_COMMON_GET_CNTL_ATTRIBUTES 32
+#define OPCODE_COMMON_GET_FW_VERSION 35
+#define OPCODE_COMMON_MODIFY_EQ_DELAY 41
+#define OPCODE_COMMON_FIRMWARE_CONFIG 42
+#define OPCODE_COMMON_MCC_DESTROY 53
+#define OPCODE_COMMON_CQ_DESTROY 54
+#define OPCODE_COMMON_EQ_DESTROY 55
+#define OPCODE_COMMON_QUERY_FIRMWARE_CONFIG 58
+#define OPCODE_COMMON_FUNCTION_RESET 61
+#define OPCODE_COMMON_GET_PORT_NAME 77
+#define OPCODE_COMMON_SET_HOST_DATA 93
+#define OPCODE_COMMON_SET_FEATURES 191
+
+/**
+ * LIST of opcodes that are common between Initiator and Target
+ * used by CMD_SUBSYSTEM_ISCSI
+ * These opcodes are unique for each subsystem defined above
+ */
+#define OPCODE_COMMON_ISCSI_CFG_POST_SGL_PAGES 2
+#define OPCODE_COMMON_ISCSI_CFG_REMOVE_SGL_PAGES 3
+#define OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG 7
+#define OPCODE_COMMON_ISCSI_NTWK_SET_VLAN 14
+#define OPCODE_COMMON_ISCSI_NTWK_CONFIG_STATELESS_IP_ADDR 17
+#define OPCODE_COMMON_ISCSI_NTWK_REL_STATELESS_IP_ADDR 18
+#define OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR 21
+#define OPCODE_COMMON_ISCSI_NTWK_GET_DEFAULT_GATEWAY 22
+#define OPCODE_COMMON_ISCSI_NTWK_MODIFY_DEFAULT_GATEWAY 23
+#define OPCODE_COMMON_ISCSI_NTWK_GET_ALL_IF_ID 24
+#define OPCODE_COMMON_ISCSI_NTWK_GET_IF_INFO 25
+#define OPCODE_COMMON_ISCSI_SET_FRAGNUM_BITS_FOR_SGL_CRA 61
+#define OPCODE_COMMON_ISCSI_DEFQ_CREATE 64
+#define OPCODE_COMMON_ISCSI_DEFQ_DESTROY 65
+#define OPCODE_COMMON_ISCSI_WRBQ_CREATE 66
+#define OPCODE_COMMON_ISCSI_WRBQ_DESTROY 67
+
+struct be_cmd_req_hdr {
+ u8 opcode; /* dword 0 */
+ u8 subsystem; /* dword 0 */
+ u8 port_number; /* dword 0 */
+ u8 domain; /* dword 0 */
+ u32 timeout; /* dword 1 */
+ u32 request_length; /* dword 2 */
+ u8 version; /* dword 3 */
+ u8 rsvd0[3]; /* dword 3 */
+};
+
+struct be_cmd_resp_hdr {
+ u32 info; /* dword 0 */
+ u32 status; /* dword 1 */
+ u32 response_length; /* dword 2 */
+ u32 actual_resp_len; /* dword 3 */
+};
+
+struct phys_addr {
+ u32 lo;
+ u32 hi;
+};
+
+struct virt_addr {
+ u32 lo;
+ u32 hi;
+};
+/**************************
+ * BE Command definitions *
+ **************************/
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte - used to calculate offset/shift/mask of each field
+ */
+struct amap_eq_context {
+ u8 cidx[13]; /* dword 0 */
+ u8 rsvd0[3]; /* dword 0 */
+ u8 epidx[13]; /* dword 0 */
+ u8 valid; /* dword 0 */
+ u8 rsvd1; /* dword 0 */
+ u8 size; /* dword 0 */
+ u8 pidx[13]; /* dword 1 */
+ u8 rsvd2[3]; /* dword 1 */
+ u8 pd[10]; /* dword 1 */
+ u8 count[3]; /* dword 1 */
+ u8 solevent; /* dword 1 */
+ u8 stalled; /* dword 1 */
+ u8 armed; /* dword 1 */
+ u8 rsvd3[4]; /* dword 2 */
+ u8 func[8]; /* dword 2 */
+ u8 rsvd4; /* dword 2 */
+ u8 delaymult[10]; /* dword 2 */
+ u8 rsvd5[2]; /* dword 2 */
+ u8 phase[2]; /* dword 2 */
+ u8 nodelay; /* dword 2 */
+ u8 rsvd6[4]; /* dword 2 */
+ u8 rsvd7[32]; /* dword 3 */
+} __packed;
+
+struct be_cmd_req_eq_create {
+ struct be_cmd_req_hdr hdr; /* dw[4] */
+ u16 num_pages; /* sword */
+ u16 rsvd0; /* sword */
+ u8 context[sizeof(struct amap_eq_context) / 8]; /* dw[4] */
+ struct phys_addr pages[8];
+} __packed;
+
+struct be_cmd_resp_eq_create {
+ struct be_cmd_resp_hdr resp_hdr;
+ u16 eq_id; /* sword */
+ u16 rsvd0; /* sword */
+} __packed;
+
+struct be_set_eqd {
+ u32 eq_id;
+ u32 phase;
+ u32 delay_multiplier;
+} __packed;
+
+struct mgmt_chap_format {
+ u32 flags;
+ u8 intr_chap_name[256];
+ u8 intr_secret[16];
+ u8 target_chap_name[256];
+ u8 target_secret[16];
+ u16 intr_chap_name_length;
+ u16 intr_secret_length;
+ u16 target_chap_name_length;
+ u16 target_secret_length;
+} __packed;
+
+struct mgmt_auth_method_format {
+ u8 auth_method_type;
+ u8 padding[3];
+ struct mgmt_chap_format chap;
+} __packed;
+
+struct be_cmd_req_logout_fw_sess {
+ struct be_cmd_req_hdr hdr; /* dw[4] */
+ uint32_t session_handle;
+} __packed;
+
+struct be_cmd_resp_logout_fw_sess {
+ struct be_cmd_resp_hdr hdr; /* dw[4] */
+ uint32_t session_status;
+#define BE_SESS_STATUS_CLOSE 0x20
+} __packed;
+
+struct mgmt_conn_login_options {
+ u8 flags;
+ u8 header_digest;
+ u8 data_digest;
+ u8 rsvd0;
+ u32 max_recv_datasegment_len_ini;
+ u32 max_recv_datasegment_len_tgt;
+ u32 tcp_mss;
+ u32 tcp_window_size;
+ struct mgmt_auth_method_format auth_data;
+} __packed;
+
+struct ip_addr_format {
+ u16 size_of_structure;
+ u8 reserved;
+ u8 ip_type;
+#define BEISCSI_IP_TYPE_V4 0x1
+#define BEISCSI_IP_TYPE_STATIC_V4 0x3
+#define BEISCSI_IP_TYPE_DHCP_V4 0x5
+/* type v4 values < type v6 values */
+#define BEISCSI_IP_TYPE_V6 0x10
+#define BEISCSI_IP_TYPE_ROUTABLE_V6 0x30
+#define BEISCSI_IP_TYPE_LINK_LOCAL_V6 0x50
+#define BEISCSI_IP_TYPE_AUTO_V6 0x90
+ u8 addr[16];
+ u32 rsvd0;
+} __packed;
+
+struct mgmt_conn_info {
+ u32 connection_handle;
+ u32 connection_status;
+ u16 src_port;
+ u16 dest_port;
+ u16 dest_port_redirected;
+ u16 cid;
+ u32 estimated_throughput;
+ struct ip_addr_format src_ipaddr;
+ struct ip_addr_format dest_ipaddr;
+ struct ip_addr_format dest_ipaddr_redirected;
+ struct mgmt_conn_login_options negotiated_login_options;
+} __packed;
+
+struct mgmt_session_login_options {
+ u8 flags;
+ u8 error_recovery_level;
+ u16 rsvd0;
+ u32 first_burst_length;
+ u32 max_burst_length;
+ u16 max_connections;
+ u16 max_outstanding_r2t;
+ u16 default_time2wait;
+ u16 default_time2retain;
+} __packed;
+
+struct mgmt_session_info {
+ u32 session_handle;
+ u32 status;
+ u8 isid[6];
+ u16 tsih;
+ u32 session_flags;
+ u16 conn_count;
+ u16 pad;
+ u8 target_name[224];
+ u8 initiator_iscsiname[224];
+ struct mgmt_session_login_options negotiated_login_options;
+ struct mgmt_conn_info conn_list[1];
+} __packed;
+
+struct be_cmd_get_session_req {
+ struct be_cmd_req_hdr hdr;
+ u32 session_handle;
+} __packed;
+
+struct be_cmd_get_session_resp {
+ struct be_cmd_resp_hdr hdr;
+ struct mgmt_session_info session_info;
+} __packed;
+
+struct mac_addr {
+ u16 size_of_structure;
+ u8 addr[ETH_ALEN];
+} __packed;
+
+struct be_cmd_get_boot_target_req {
+ struct be_cmd_req_hdr hdr;
+} __packed;
+
+struct be_cmd_get_boot_target_resp {
+ struct be_cmd_resp_hdr hdr;
+ u32 boot_session_count;
+ u32 boot_session_handle;
+/**
+ * FW returns 0xffffffff if it couldn't establish connection with
+ * configured boot target.
+ */
+#define BE_BOOT_INVALID_SHANDLE 0xffffffff
+};
+
+struct be_cmd_reopen_session_req {
+ struct be_cmd_req_hdr hdr;
+#define BE_REOPEN_ALL_SESSIONS 0x00
+#define BE_REOPEN_BOOT_SESSIONS 0x01
+#define BE_REOPEN_A_SESSION 0x02
+ u16 reopen_type;
+ u16 rsvd;
+ u32 session_handle;
+} __packed;
+
+struct be_cmd_reopen_session_resp {
+ struct be_cmd_resp_hdr hdr;
+ u32 rsvd;
+ u32 session_handle;
+} __packed;
+
+
+struct be_cmd_mac_query_req {
+ struct be_cmd_req_hdr hdr;
+ u8 type;
+ u8 permanent;
+ u16 if_id;
+} __packed;
+
+struct be_cmd_get_mac_resp {
+ struct be_cmd_resp_hdr hdr;
+ struct mac_addr mac;
+};
+
+struct be_ip_addr_subnet_format {
+ u16 size_of_structure;
+ u8 ip_type;
+ u8 ipv6_prefix_length;
+ u8 addr[16];
+ u8 subnet_mask[16];
+ u32 rsvd0;
+} __packed;
+
+struct be_cmd_get_if_info_req {
+ struct be_cmd_req_hdr hdr;
+ u32 interface_hndl;
+ u32 ip_type;
+} __packed;
+
+struct be_cmd_get_if_info_resp {
+ struct be_cmd_req_hdr hdr;
+ u32 interface_hndl;
+ u32 vlan_priority;
+ u32 ip_addr_count;
+ u32 dhcp_state;
+ struct be_ip_addr_subnet_format ip_addr;
+} __packed;
+
+struct be_ip_addr_record {
+ u32 action;
+ u32 interface_hndl;
+ struct be_ip_addr_subnet_format ip_addr;
+ u32 status;
+} __packed;
+
+struct be_ip_addr_record_params {
+ u32 record_entry_count;
+ struct be_ip_addr_record ip_record;
+} __packed;
+
+struct be_cmd_set_ip_addr_req {
+ struct be_cmd_req_hdr hdr;
+ struct be_ip_addr_record_params ip_params;
+} __packed;
+
+
+struct be_cmd_set_dhcp_req {
+ struct be_cmd_req_hdr hdr;
+ u32 interface_hndl;
+ u32 ip_type;
+ u32 flags;
+ u32 retry_count;
+} __packed;
+
+struct be_cmd_rel_dhcp_req {
+ struct be_cmd_req_hdr hdr;
+ u32 interface_hndl;
+ u32 ip_type;
+} __packed;
+
+struct be_cmd_set_def_gateway_req {
+ struct be_cmd_req_hdr hdr;
+ u32 action;
+ struct ip_addr_format ip_addr;
+} __packed;
+
+struct be_cmd_get_def_gateway_req {
+ struct be_cmd_req_hdr hdr;
+ u32 ip_type;
+} __packed;
+
+struct be_cmd_get_def_gateway_resp {
+ struct be_cmd_req_hdr hdr;
+ struct ip_addr_format ip_addr;
+} __packed;
+
+#define BEISCSI_VLAN_DISABLE 0xFFFF
+struct be_cmd_set_vlan_req {
+ struct be_cmd_req_hdr hdr;
+ u32 interface_hndl;
+ u32 vlan_priority;
+} __packed;
+/******************** Create CQ ***************************/
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte - used to calculate offset/shift/mask of each field
+ */
+struct amap_cq_context {
+ u8 cidx[11]; /* dword 0 */
+ u8 rsvd0; /* dword 0 */
+ u8 coalescwm[2]; /* dword 0 */
+ u8 nodelay; /* dword 0 */
+ u8 epidx[11]; /* dword 0 */
+ u8 rsvd1; /* dword 0 */
+ u8 count[2]; /* dword 0 */
+ u8 valid; /* dword 0 */
+ u8 solevent; /* dword 0 */
+ u8 eventable; /* dword 0 */
+ u8 pidx[11]; /* dword 1 */
+ u8 rsvd2; /* dword 1 */
+ u8 pd[10]; /* dword 1 */
+ u8 eqid[8]; /* dword 1 */
+ u8 stalled; /* dword 1 */
+ u8 armed; /* dword 1 */
+ u8 rsvd3[4]; /* dword 2 */
+ u8 func[8]; /* dword 2 */
+ u8 rsvd4[20]; /* dword 2 */
+ u8 rsvd5[32]; /* dword 3 */
+} __packed;
+
+struct amap_cq_context_v2 {
+ u8 rsvd0[12]; /* dword 0 */
+ u8 coalescwm[2]; /* dword 0 */
+ u8 nodelay; /* dword 0 */
+ u8 rsvd1[12]; /* dword 0 */
+ u8 count[2]; /* dword 0 */
+ u8 valid; /* dword 0 */
+ u8 rsvd2; /* dword 0 */
+ u8 eventable; /* dword 0 */
+ u8 eqid[16]; /* dword 1 */
+ u8 rsvd3[15]; /* dword 1 */
+ u8 armed; /* dword 1 */
+ u8 cqecount[16];/* dword 2 */
+ u8 rsvd4[16]; /* dword 2 */
+ u8 rsvd5[32]; /* dword 3 */
+};
+
+struct be_cmd_req_cq_create {
+ struct be_cmd_req_hdr hdr;
+ u16 num_pages;
+ u8 page_size;
+ u8 rsvd0;
+ u8 context[sizeof(struct amap_cq_context) / 8];
+ struct phys_addr pages[4];
+} __packed;
+
+struct be_cmd_resp_cq_create {
+ struct be_cmd_resp_hdr hdr;
+ u16 cq_id;
+ u16 rsvd0;
+} __packed;
+
+/******************** Create MCCQ ***************************/
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte - used to calculate offset/shift/mask of each field
+ */
+struct amap_mcc_context {
+ u8 con_index[14];
+ u8 rsvd0[2];
+ u8 ring_size[4];
+ u8 fetch_wrb;
+ u8 fetch_r2t;
+ u8 cq_id[10];
+ u8 prod_index[14];
+ u8 fid[8];
+ u8 pdid[9];
+ u8 valid;
+ u8 rsvd1[32];
+ u8 rsvd2[32];
+} __packed;
+
+struct be_cmd_req_mcc_create_ext {
+ struct be_cmd_req_hdr hdr;
+ u16 num_pages;
+ u16 rsvd0;
+ u32 async_evt_bitmap;
+ u8 context[sizeof(struct amap_mcc_context) / 8];
+ struct phys_addr pages[8];
+} __packed;
+
+struct be_cmd_resp_mcc_create {
+ struct be_cmd_resp_hdr hdr;
+ u16 id;
+ u16 rsvd0;
+} __packed;
+
+/******************** Q Destroy ***************************/
+/* Type of Queue to be destroyed */
+enum {
+ QTYPE_EQ = 1,
+ QTYPE_CQ,
+ QTYPE_MCCQ,
+ QTYPE_WRBQ,
+ QTYPE_DPDUQ,
+ QTYPE_SGL
+};
+
+struct be_cmd_req_q_destroy {
+ struct be_cmd_req_hdr hdr;
+ u16 id;
+ u16 bypass_flush; /* valid only for rx q destroy */
+} __packed;
+
+struct macaddr {
+ u8 byte[ETH_ALEN];
+};
+
+struct be_cmd_req_mcast_mac_config {
+ struct be_cmd_req_hdr hdr;
+ u16 num_mac;
+ u8 promiscuous;
+ u8 interface_id;
+ struct macaddr mac[32];
+} __packed;
+
+static inline void *embedded_payload(struct be_mcc_wrb *wrb)
+{
+ return wrb->payload.embedded_payload;
+}
+
+static inline struct be_sge *nonembedded_sgl(struct be_mcc_wrb *wrb)
+{
+ return &wrb->payload.sgl[0];
+}
+
+/******************** Modify EQ Delay *******************/
+struct be_cmd_req_modify_eq_delay {
+ struct be_cmd_req_hdr hdr;
+ __le32 num_eq;
+ struct {
+ __le32 eq_id;
+ __le32 phase;
+ __le32 delay_multiplier;
+ } delay[MAX_CPUS];
+} __packed;
+
+/******************** Get MAC ADDR *******************/
+
+struct be_cmd_get_nic_conf_resp {
+ struct be_cmd_resp_hdr hdr;
+ u32 nic_port_count;
+ u32 speed;
+ u32 max_speed;
+ u32 link_state;
+ u32 max_frame_size;
+ u16 size_of_structure;
+ u8 mac_address[ETH_ALEN];
+} __packed;
+
+/******************** Get HBA NAME *******************/
+
+struct be_cmd_hba_name {
+ struct be_cmd_req_hdr hdr;
+ u16 flags;
+ u16 rsvd0;
+ u8 initiator_name[ISCSI_NAME_LEN];
+#define BE_INI_ALIAS_LEN 32
+ u8 initiator_alias[BE_INI_ALIAS_LEN];
+} __packed;
+
+/******************** COMMON SET HOST DATA *******************/
+#define BE_CMD_SET_HOST_PARAM_ID 0x2
+#define BE_CMD_MAX_DRV_VERSION 0x30
+struct be_sethost_req {
+ u32 param_id;
+ u32 param_len;
+ u32 param_data[32];
+};
+
+struct be_sethost_resp {
+ u32 rsvd0;
+};
+
+struct be_cmd_set_host_data {
+ union {
+ struct be_cmd_req_hdr req_hdr;
+ struct be_cmd_resp_hdr resp_hdr;
+ } h;
+ union {
+ struct be_sethost_req req;
+ struct be_sethost_resp resp;
+ } param;
+} __packed;
+
+/******************** COMMON SET Features *******************/
+#define BE_CMD_SET_FEATURE_UER 0x10
+#define BE_CMD_UER_SUPP_BIT 0x1
+struct be_uer_req {
+ u32 uer;
+ u32 rsvd;
+};
+
+struct be_uer_resp {
+ u32 uer;
+ u16 ue2rp;
+ u16 ue2sr;
+};
+
+struct be_cmd_set_features {
+ union {
+ struct be_cmd_req_hdr req_hdr;
+ struct be_cmd_resp_hdr resp_hdr;
+ } h;
+ u32 feature;
+ u32 param_len;
+ union {
+ struct be_uer_req req;
+ struct be_uer_resp resp;
+ u32 rsvd[2];
+ } param;
+} __packed;
+
+int beiscsi_cmd_function_reset(struct beiscsi_hba *phba);
+
+int beiscsi_cmd_special_wrb(struct be_ctrl_info *ctrl, u32 load);
+
+int beiscsi_check_fw_rdy(struct beiscsi_hba *phba);
+
+int beiscsi_init_sliport(struct beiscsi_hba *phba);
+
+int beiscsi_cmd_iscsi_cleanup(struct beiscsi_hba *phba, unsigned short ulp_num);
+
+int beiscsi_detect_ue(struct beiscsi_hba *phba);
+
+int beiscsi_detect_tpe(struct beiscsi_hba *phba);
+
+int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
+ struct be_queue_info *eq, int eq_delay);
+
+int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
+ struct be_queue_info *cq, struct be_queue_info *eq,
+ bool sol_evts, bool no_delay,
+ int num_cqe_dma_coalesce);
+
+int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
+ int type);
+int beiscsi_cmd_mccq_create(struct beiscsi_hba *phba,
+ struct be_queue_info *mccq,
+ struct be_queue_info *cq);
+
+void free_mcc_wrb(struct be_ctrl_info *ctrl, unsigned int tag);
+
+int beiscsi_modify_eq_delay(struct beiscsi_hba *phba, struct be_set_eqd *,
+ int num);
+int beiscsi_mccq_compl_wait(struct beiscsi_hba *phba,
+ unsigned int tag,
+ struct be_mcc_wrb **wrb,
+ struct be_dma_mem *mbx_cmd_mem);
+int __beiscsi_mcc_compl_status(struct beiscsi_hba *phba,
+ unsigned int tag,
+ struct be_mcc_wrb **wrb,
+ struct be_dma_mem *mbx_cmd_mem);
+struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem);
+void be_mcc_notify(struct beiscsi_hba *phba, unsigned int tag);
+struct be_mcc_wrb *alloc_mcc_wrb(struct beiscsi_hba *phba,
+ unsigned int *ref_tag);
+void beiscsi_process_async_event(struct beiscsi_hba *phba,
+ struct be_mcc_compl *compl);
+int beiscsi_process_mcc_compl(struct be_ctrl_info *ctrl,
+ struct be_mcc_compl *compl);
+
+int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
+ struct be_queue_info *cq,
+ struct be_queue_info *dq, int length,
+ int entry_size, uint8_t is_header,
+ uint8_t ulp_num);
+
+int be_cmd_iscsi_post_template_hdr(struct be_ctrl_info *ctrl,
+ struct be_dma_mem *q_mem);
+
+int be_cmd_iscsi_remove_template_hdr(struct be_ctrl_info *ctrl);
+
+int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl,
+ struct be_dma_mem *q_mem, u32 page_offset,
+ u32 num_pages);
+
+int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem,
+ struct be_queue_info *wrbq,
+ struct hwi_wrb_context *pwrb_context,
+ uint8_t ulp_num);
+
+/* Configuration Functions */
+int be_cmd_set_vlan(struct beiscsi_hba *phba, uint16_t vlan_tag);
+
+int beiscsi_check_supported_fw(struct be_ctrl_info *ctrl,
+ struct beiscsi_hba *phba);
+
+int beiscsi_get_fw_config(struct be_ctrl_info *ctrl, struct beiscsi_hba *phba);
+
+int beiscsi_get_port_name(struct be_ctrl_info *ctrl, struct beiscsi_hba *phba);
+
+int beiscsi_set_uer_feature(struct beiscsi_hba *phba);
+int beiscsi_set_host_data(struct beiscsi_hba *phba);
+
+struct be_default_pdu_context {
+ u32 dw[4];
+} __packed;
+
+struct amap_be_default_pdu_context {
+ u8 dbuf_cindex[13]; /* dword 0 */
+ u8 rsvd0[3]; /* dword 0 */
+ u8 ring_size[4]; /* dword 0 */
+ u8 ring_state[4]; /* dword 0 */
+ u8 rsvd1[8]; /* dword 0 */
+ u8 dbuf_pindex[13]; /* dword 1 */
+ u8 rsvd2; /* dword 1 */
+ u8 pci_func_id[8]; /* dword 1 */
+ u8 rx_pdid[9]; /* dword 1 */
+ u8 rx_pdid_valid; /* dword 1 */
+ u8 default_buffer_size[16]; /* dword 2 */
+ u8 cq_id_recv[10]; /* dword 2 */
+ u8 rx_pdid_not_valid; /* dword 2 */
+ u8 rsvd3[5]; /* dword 2 */
+ u8 rsvd4[32]; /* dword 3 */
+} __packed;
+
+struct amap_default_pdu_context_ext {
+ u8 rsvd0[16]; /* dword 0 */
+ u8 ring_size[4]; /* dword 0 */
+ u8 rsvd1[12]; /* dword 0 */
+ u8 rsvd2[22]; /* dword 1 */
+ u8 rx_pdid[9]; /* dword 1 */
+ u8 rx_pdid_valid; /* dword 1 */
+ u8 default_buffer_size[16]; /* dword 2 */
+ u8 cq_id_recv[16]; /* dword 2 */
+ u8 rsvd3[32]; /* dword 3 */
+} __packed;
+
+struct be_defq_create_req {
+ struct be_cmd_req_hdr hdr;
+ u16 num_pages;
+ u8 ulp_num;
+#define BEISCSI_DUAL_ULP_AWARE_BIT 0 /* Byte 3 - Bit 0 */
+#define BEISCSI_BIND_Q_TO_ULP_BIT 1 /* Byte 3 - Bit 1 */
+ u8 dua_feature;
+ struct be_default_pdu_context context;
+ struct phys_addr pages[8];
+} __packed;
+
+struct be_defq_create_resp {
+ struct be_cmd_req_hdr hdr;
+ u16 id;
+ u8 rsvd0;
+ u8 ulp_num;
+ u32 doorbell_offset;
+ u16 register_set;
+ u16 doorbell_format;
+} __packed;
+
+struct be_post_template_pages_req {
+ struct be_cmd_req_hdr hdr;
+ u16 num_pages;
+#define BEISCSI_TEMPLATE_HDR_TYPE_ISCSI 0x1
+ u16 type;
+ struct phys_addr scratch_pa;
+ struct virt_addr scratch_va;
+ struct virt_addr pages_va;
+ struct phys_addr pages[16];
+} __packed;
+
+struct be_remove_template_pages_req {
+ struct be_cmd_req_hdr hdr;
+ u16 type;
+ u16 rsvd0;
+} __packed;
+
+struct be_post_sgl_pages_req {
+ struct be_cmd_req_hdr hdr;
+ u16 num_pages;
+ u16 page_offset;
+ u32 rsvd0;
+ struct phys_addr pages[26];
+ u32 rsvd1;
+} __packed;
+
+struct be_wrbq_create_req {
+ struct be_cmd_req_hdr hdr;
+ u16 num_pages;
+ u8 ulp_num;
+ u8 dua_feature;
+ struct phys_addr pages[8];
+} __packed;
+
+struct be_wrbq_create_resp {
+ struct be_cmd_resp_hdr resp_hdr;
+ u16 cid;
+ u8 rsvd0;
+ u8 ulp_num;
+ u32 doorbell_offset;
+ u16 register_set;
+ u16 doorbell_format;
+} __packed;
+
+#define SOL_CID_MASK 0x0000FFC0
+#define SOL_CODE_MASK 0x0000003F
+#define SOL_WRB_INDEX_MASK 0x00FF0000
+#define SOL_CMD_WND_MASK 0xFF000000
+#define SOL_RES_CNT_MASK 0x7FFFFFFF
+#define SOL_EXP_CMD_SN_MASK 0xFFFFFFFF
+#define SOL_HW_STS_MASK 0x000000FF
+#define SOL_STS_MASK 0x0000FF00
+#define SOL_RESP_MASK 0x00FF0000
+#define SOL_FLAGS_MASK 0x7F000000
+#define SOL_S_MASK 0x80000000
+
+struct sol_cqe {
+ u32 dw[4];
+};
+
+struct amap_sol_cqe {
+ u8 hw_sts[8]; /* dword 0 */
+ u8 i_sts[8]; /* dword 0 */
+ u8 i_resp[8]; /* dword 0 */
+ u8 i_flags[7]; /* dword 0 */
+ u8 s; /* dword 0 */
+ u8 i_exp_cmd_sn[32]; /* dword 1 */
+ u8 code[6]; /* dword 2 */
+ u8 cid[10]; /* dword 2 */
+ u8 wrb_index[8]; /* dword 2 */
+ u8 i_cmd_wnd[8]; /* dword 2 */
+ u8 i_res_cnt[31]; /* dword 3 */
+ u8 valid; /* dword 3 */
+} __packed;
+
+#define SOL_ICD_INDEX_MASK 0x0003FFC0
+struct amap_sol_cqe_ring {
+ u8 hw_sts[8]; /* dword 0 */
+ u8 i_sts[8]; /* dword 0 */
+ u8 i_resp[8]; /* dword 0 */
+ u8 i_flags[7]; /* dword 0 */
+ u8 s; /* dword 0 */
+ u8 i_exp_cmd_sn[32]; /* dword 1 */
+ u8 code[6]; /* dword 2 */
+ u8 icd_index[12]; /* dword 2 */
+ u8 rsvd[6]; /* dword 2 */
+ u8 i_cmd_wnd[8]; /* dword 2 */
+ u8 i_res_cnt[31]; /* dword 3 */
+ u8 valid; /* dword 3 */
+} __packed;
+
+struct amap_sol_cqe_v2 {
+ u8 hw_sts[8]; /* dword 0 */
+ u8 i_sts[8]; /* dword 0 */
+ u8 wrb_index[16]; /* dword 0 */
+ u8 i_exp_cmd_sn[32]; /* dword 1 */
+ u8 code[6]; /* dword 2 */
+ u8 cmd_cmpl; /* dword 2 */
+ u8 rsvd0; /* dword 2 */
+ u8 i_cmd_wnd[8]; /* dword 2 */
+ u8 cid[13]; /* dword 2 */
+ u8 u; /* dword 2 */
+ u8 o; /* dword 2 */
+ u8 s; /* dword 2 */
+ u8 i_res_cnt[31]; /* dword 3 */
+ u8 valid; /* dword 3 */
+} __packed;
+
+struct common_sol_cqe {
+ u32 exp_cmdsn;
+ u32 res_cnt;
+ u16 wrb_index;
+ u16 cid;
+ u8 hw_sts;
+ u8 cmd_wnd;
+ u8 res_flag; /* the s feild of structure */
+ u8 i_resp; /* for skh if cmd_complete is set then i_sts is response */
+ u8 i_flags; /* for skh or the u and o feilds */
+ u8 i_sts; /* for skh if cmd_complete is not-set then i_sts is status */
+};
+
+/*** iSCSI ack/driver message completions ***/
+struct amap_it_dmsg_cqe {
+ u8 ack_num[32]; /* DWORD 0 */
+ u8 pdu_bytes_rcvd[32]; /* DWORD 1 */
+ u8 code[6]; /* DWORD 2 */
+ u8 cid[10]; /* DWORD 2 */
+ u8 wrb_idx[8]; /* DWORD 2 */
+ u8 rsvd0[8]; /* DWORD 2*/
+ u8 rsvd1[31]; /* DWORD 3*/
+ u8 valid; /* DWORD 3 */
+} __packed;
+
+struct amap_it_dmsg_cqe_v2 {
+ u8 ack_num[32]; /* DWORD 0 */
+ u8 pdu_bytes_rcvd[32]; /* DWORD 1 */
+ u8 code[6]; /* DWORD 2 */
+ u8 rsvd0[10]; /* DWORD 2 */
+ u8 wrb_idx[16]; /* DWORD 2 */
+ u8 rsvd1[16]; /* DWORD 3 */
+ u8 cid[13]; /* DWORD 3 */
+ u8 rsvd2[2]; /* DWORD 3 */
+ u8 valid; /* DWORD 3 */
+} __packed;
+
+
+/**
+ * Post WRB Queue Doorbell Register used by the host Storage
+ * stack to notify the
+ * controller of a posted Work Request Block
+ */
+#define DB_WRB_POST_CID_MASK 0xFFFF /* bits 0 - 16 */
+#define DB_DEF_PDU_WRB_INDEX_MASK 0xFF /* bits 0 - 9 */
+
+#define DB_DEF_PDU_WRB_INDEX_SHIFT 16
+#define DB_DEF_PDU_NUM_POSTED_SHIFT 24
+
+struct fragnum_bits_for_sgl_cra_in {
+ struct be_cmd_req_hdr hdr;
+ u32 num_bits;
+} __packed;
+
+struct iscsi_cleanup_req {
+ struct be_cmd_req_hdr hdr;
+ u16 chute;
+ u8 hdr_ring_id;
+ u8 data_ring_id;
+} __packed;
+
+struct iscsi_cleanup_req_v1 {
+ struct be_cmd_req_hdr hdr;
+ u16 chute;
+ u16 rsvd1;
+ u16 hdr_ring_id;
+ u16 rsvd2;
+ u16 data_ring_id;
+ u16 rsvd3;
+} __packed;
+
+struct eq_delay {
+ u32 eq_id;
+ u32 phase;
+ u32 delay_multiplier;
+} __packed;
+
+struct be_eq_delay_params_in {
+ struct be_cmd_req_hdr hdr;
+ u32 num_eq;
+ struct eq_delay delay[8];
+} __packed;
+
+struct tcp_connect_and_offload_in {
+ struct be_cmd_req_hdr hdr;
+ struct ip_addr_format ip_address;
+ u16 tcp_port;
+ u16 cid;
+ u16 cq_id;
+ u16 defq_id;
+ struct phys_addr dataout_template_pa;
+ u16 hdr_ring_id;
+ u16 data_ring_id;
+ u8 do_offload;
+ u8 rsvd0[3];
+} __packed;
+
+struct tcp_connect_and_offload_in_v1 {
+ struct be_cmd_req_hdr hdr;
+ struct ip_addr_format ip_address;
+ u16 tcp_port;
+ u16 cid;
+ u16 cq_id;
+ u16 defq_id;
+ struct phys_addr dataout_template_pa;
+ u16 hdr_ring_id;
+ u16 data_ring_id;
+ u8 do_offload;
+ u8 ifd_state;
+ u8 rsvd0[2];
+ u16 tcp_window_size;
+ u8 tcp_window_scale_count;
+ u8 rsvd1;
+ u32 tcp_mss:24;
+ u8 rsvd2;
+} __packed;
+
+struct tcp_connect_and_offload_out {
+ struct be_cmd_resp_hdr hdr;
+ u32 connection_handle;
+ u16 cid;
+ u16 rsvd0;
+
+} __packed;
+
+#define DB_DEF_PDU_RING_ID_MASK 0x3FFF /* bits 0 - 13 */
+#define DB_DEF_PDU_CQPROC_MASK 0x3FFF /* bits 16 - 29 */
+#define DB_DEF_PDU_REARM_SHIFT 14
+#define DB_DEF_PDU_EVENT_SHIFT 15
+#define DB_DEF_PDU_CQPROC_SHIFT 16
+
+struct be_invalidate_connection_params_in {
+ struct be_cmd_req_hdr hdr;
+ u32 session_handle;
+ u16 cid;
+ u16 unused;
+#define BE_CLEANUP_TYPE_INVALIDATE 0x8001
+#define BE_CLEANUP_TYPE_ISSUE_TCP_RST 0x8002
+ u16 cleanup_type;
+ u16 save_cfg;
+} __packed;
+
+struct be_invalidate_connection_params_out {
+ u32 session_handle;
+ u16 cid;
+ u16 unused;
+} __packed;
+
+union be_invalidate_connection_params {
+ struct be_invalidate_connection_params_in req;
+ struct be_invalidate_connection_params_out resp;
+} __packed;
+
+struct be_tcp_upload_params_in {
+ struct be_cmd_req_hdr hdr;
+ u16 id;
+#define BE_UPLOAD_TYPE_GRACEFUL 1
+/* abortive upload with reset */
+#define BE_UPLOAD_TYPE_ABORT_RESET 2
+/* abortive upload without reset */
+#define BE_UPLOAD_TYPE_ABORT 3
+/* abortive upload with reset, sequence number by driver */
+#define BE_UPLOAD_TYPE_ABORT_WITH_SEQ 4
+ u16 upload_type;
+ u32 reset_seq;
+} __packed;
+
+struct be_tcp_upload_params_out {
+ u32 dw[32];
+} __packed;
+
+union be_tcp_upload_params {
+ struct be_tcp_upload_params_in request;
+ struct be_tcp_upload_params_out response;
+} __packed;
+
+struct be_ulp_fw_cfg {
+#define BEISCSI_ULP_ISCSI_INI_MODE 0x10
+ u32 ulp_mode;
+ u32 etx_base;
+ u32 etx_count;
+ u32 sq_base;
+ u32 sq_count;
+ u32 rq_base;
+ u32 rq_count;
+ u32 dq_base;
+ u32 dq_count;
+ u32 lro_base;
+ u32 lro_count;
+ u32 icd_base;
+ u32 icd_count;
+};
+
+struct be_ulp_chain_icd {
+ u32 chain_base;
+ u32 chain_count;
+};
+
+struct be_fw_cfg {
+ struct be_cmd_req_hdr hdr;
+ u32 be_config_number;
+ u32 asic_revision;
+ u32 phys_port;
+#define BEISCSI_FUNC_ISCSI_INI_MODE 0x10
+#define BEISCSI_FUNC_DUA_MODE 0x800
+ u32 function_mode;
+ struct be_ulp_fw_cfg ulp[2];
+ u32 function_caps;
+ u32 cqid_base;
+ u32 cqid_count;
+ u32 eqid_base;
+ u32 eqid_count;
+ struct be_ulp_chain_icd chain_icd[2];
+} __packed;
+
+struct be_cmd_get_all_if_id_req {
+ struct be_cmd_req_hdr hdr;
+ u32 if_count;
+ u32 if_hndl_list[1];
+} __packed;
+
+struct be_cmd_get_port_name {
+ union {
+ struct be_cmd_req_hdr req_hdr;
+ struct be_cmd_resp_hdr resp_hdr;
+ } h;
+ union {
+ struct {
+ u32 reserved;
+ } req;
+ struct {
+ u32 port_names;
+ } resp;
+ } p;
+} __packed;
+
+#define ISCSI_OPCODE_SCSI_DATA_OUT 5
+#define OPCODE_COMMON_NTWK_LINK_STATUS_QUERY 5
+#define OPCODE_COMMON_MODIFY_EQ_DELAY 41
+#define OPCODE_COMMON_ISCSI_CLEANUP 59
+#define OPCODE_COMMON_TCP_UPLOAD 56
+#define OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD 70
+#define OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS 1
+#define OPCODE_ISCSI_INI_CFG_GET_HBA_NAME 6
+#define OPCODE_ISCSI_INI_CFG_SET_HBA_NAME 7
+#define OPCODE_ISCSI_INI_SESSION_GET_A_SESSION 14
+#define OPCODE_ISCSI_INI_SESSION_LOGOUT_TARGET 24
+#define OPCODE_ISCSI_INI_DRIVER_REOPEN_ALL_SESSIONS 36
+#define OPCODE_ISCSI_INI_DRIVER_OFFLOAD_SESSION 41
+#define OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION 42
+#define OPCODE_ISCSI_INI_BOOT_GET_BOOT_TARGET 52
+#define OPCODE_COMMON_WRITE_FLASH 96
+#define OPCODE_COMMON_READ_FLASH 97
+
+#define CMD_ISCSI_COMMAND_INVALIDATE 1
+
+#define INI_WR_CMD 1 /* Initiator write command */
+#define INI_TMF_CMD 2 /* Initiator TMF command */
+#define INI_NOPOUT_CMD 3 /* Initiator; Send a NOP-OUT */
+#define INI_RD_CMD 5 /* Initiator requesting to send
+ * a read command
+ */
+#define TGT_CTX_UPDT_CMD 7 /* Target context update */
+#define TGT_DM_CMD 11 /* Indicates that the bhs
+ * prepared by driver should not
+ * be touched.
+ */
+
+/* Returns the number of items in the field array. */
+#define BE_NUMBER_OF_FIELD(_type_, _field_) \
+ (sizeof_field(_type_, _field_)/sizeof((((_type_ *)0)->_field_[0])))\
+
+/**
+ * Different types of iSCSI completions to host driver for both initiator
+ * and taget mode
+ * of operation.
+ */
+#define SOL_CMD_COMPLETE 1 /* Solicited command completed
+ * normally
+ */
+#define SOL_CMD_KILLED_DATA_DIGEST_ERR 2 /* Solicited command got
+ * invalidated internally due
+ * to Data Digest error
+ */
+#define CXN_KILLED_PDU_SIZE_EXCEEDS_DSL 3 /* Connection got invalidated
+ * internally
+ * due to a received PDU
+ * size > DSL
+ */
+#define CXN_KILLED_BURST_LEN_MISMATCH 4 /* Connection got invalidated
+ * internally due ti received
+ * PDU sequence size >
+ * FBL/MBL.
+ */
+#define CXN_KILLED_AHS_RCVD 5 /* Connection got invalidated
+ * internally due to a received
+ * PDU Hdr that has
+ * AHS */
+#define CXN_KILLED_HDR_DIGEST_ERR 6 /* Connection got invalidated
+ * internally due to Hdr Digest
+ * error
+ */
+#define CXN_KILLED_UNKNOWN_HDR 7 /* Connection got invalidated
+ * internally
+ * due to a bad opcode in the
+ * pdu hdr
+ */
+#define CXN_KILLED_STALE_ITT_TTT_RCVD 8 /* Connection got invalidated
+ * internally due to a received
+ * ITT/TTT that does not belong
+ * to this Connection
+ */
+#define CXN_KILLED_INVALID_ITT_TTT_RCVD 9 /* Connection got invalidated
+ * internally due to received
+ * ITT/TTT value > Max
+ * Supported ITTs/TTTs
+ */
+#define CXN_KILLED_RST_RCVD 10 /* Connection got invalidated
+ * internally due to an
+ * incoming TCP RST
+ */
+#define CXN_KILLED_TIMED_OUT 11 /* Connection got invalidated
+ * internally due to timeout on
+ * tcp segment 12 retransmit
+ * attempts failed
+ */
+#define CXN_KILLED_RST_SENT 12 /* Connection got invalidated
+ * internally due to TCP RST
+ * sent by the Tx side
+ */
+#define CXN_KILLED_FIN_RCVD 13 /* Connection got invalidated
+ * internally due to an
+ * incoming TCP FIN.
+ */
+#define CXN_KILLED_BAD_UNSOL_PDU_RCVD 14 /* Connection got invalidated
+ * internally due to bad
+ * unsolicited PDU Unsolicited
+ * PDUs are PDUs with
+ * ITT=0xffffffff
+ */
+#define CXN_KILLED_BAD_WRB_INDEX_ERROR 15 /* Connection got invalidated
+ * internally due to bad WRB
+ * index.
+ */
+#define CXN_KILLED_OVER_RUN_RESIDUAL 16 /* Command got invalidated
+ * internally due to received
+ * command has residual
+ * over run bytes.
+ */
+#define CXN_KILLED_UNDER_RUN_RESIDUAL 17 /* Command got invalidated
+ * internally due to received
+ * command has residual under
+ * run bytes.
+ */
+#define CMD_KILLED_INVALID_STATSN_RCVD 18 /* Command got invalidated
+ * internally due to a received
+ * PDU has an invalid StatusSN
+ */
+#define CMD_KILLED_INVALID_R2T_RCVD 19 /* Command got invalidated
+ * internally due to a received
+ * an R2T with some invalid
+ * fields in it
+ */
+#define CMD_CXN_KILLED_LUN_INVALID 20 /* Command got invalidated
+ * internally due to received
+ * PDU has an invalid LUN.
+ */
+#define CMD_CXN_KILLED_ICD_INVALID 21 /* Command got invalidated
+ * internally due to the
+ * corresponding ICD not in a
+ * valid state
+ */
+#define CMD_CXN_KILLED_ITT_INVALID 22 /* Command got invalidated due
+ * to received PDU has an
+ * invalid ITT.
+ */
+#define CMD_CXN_KILLED_SEQ_OUTOFORDER 23 /* Command got invalidated due
+ * to received sequence buffer
+ * offset is out of order.
+ */
+#define CMD_CXN_KILLED_INVALID_DATASN_RCVD 24 /* Command got invalidated
+ * internally due to a
+ * received PDU has an invalid
+ * DataSN
+ */
+#define CXN_INVALIDATE_NOTIFY 25 /* Connection invalidation
+ * completion notify.
+ */
+#define CXN_INVALIDATE_INDEX_NOTIFY 26 /* Connection invalidation
+ * completion
+ * with data PDU index.
+ */
+#define CMD_INVALIDATED_NOTIFY 27 /* Command invalidation
+ * completionnotifify.
+ */
+#define UNSOL_HDR_NOTIFY 28 /* Unsolicited header notify.*/
+#define UNSOL_DATA_NOTIFY 29 /* Unsolicited data notify.*/
+#define UNSOL_DATA_DIGEST_ERROR_NOTIFY 30 /* Unsolicited data digest
+ * error notify.
+ */
+#define DRIVERMSG_NOTIFY 31 /* TCP acknowledge based
+ * notification.
+ */
+#define CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN 32 /* Connection got invalidated
+ * internally due to command
+ * and data are not on same
+ * connection.
+ */
+#define SOL_CMD_KILLED_DIF_ERR 33 /* Solicited command got
+ * invalidated internally due
+ * to DIF error
+ */
+#define CXN_KILLED_SYN_RCVD 34 /* Connection got invalidated
+ * internally due to incoming
+ * TCP SYN
+ */
+#define CXN_KILLED_IMM_DATA_RCVD 35 /* Connection got invalidated
+ * internally due to an
+ * incoming Unsolicited PDU
+ * that has immediate data on
+ * the cxn
+ */
+
+void be_wrb_hdr_prepare(struct be_mcc_wrb *wrb, u32 payload_len,
+ bool embedded, u8 sge_cnt);
+
+void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr,
+ u8 subsystem, u8 opcode, u32 cmd_len);
+#endif /* !BEISCSI_CMDS_H */
diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
new file mode 100644
index 000000000..8d374ae86
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be_iscsi.c
@@ -0,0 +1,1415 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * This file is part of the Emulex Linux Device Driver for Enterprise iSCSI
+ * Host Bus Adapters. Refer to the README file included with this package
+ * for driver version and adapter compatibility.
+ *
+ * Copyright (c) 2018 Broadcom. All Rights Reserved.
+ * The term "Broadcom" refers to Broadcom Inc. and/or its subsidiaries.
+ *
+ * Contact Information:
+ * linux-drivers@broadcom.com
+ */
+
+#include <scsi/libiscsi.h>
+#include <scsi/scsi_transport_iscsi.h>
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_netlink.h>
+#include <net/netlink.h>
+#include <scsi/scsi.h>
+
+#include "be_iscsi.h"
+
+extern struct iscsi_transport beiscsi_iscsi_transport;
+
+/**
+ * beiscsi_session_create - creates a new iscsi session
+ * @ep: pointer to iscsi ep
+ * @cmds_max: max commands supported
+ * @qdepth: max queue depth supported
+ * @initial_cmdsn: initial iscsi CMDSN
+ */
+struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep,
+ u16 cmds_max,
+ u16 qdepth,
+ u32 initial_cmdsn)
+{
+ struct Scsi_Host *shost;
+ struct beiscsi_endpoint *beiscsi_ep;
+ struct iscsi_cls_session *cls_session;
+ struct beiscsi_hba *phba;
+ struct iscsi_session *sess;
+ struct beiscsi_session *beiscsi_sess;
+ struct beiscsi_io_task *io_task;
+
+
+ if (!ep) {
+ pr_err("beiscsi_session_create: invalid ep\n");
+ return NULL;
+ }
+ beiscsi_ep = ep->dd_data;
+ phba = beiscsi_ep->phba;
+
+ if (!beiscsi_hba_is_online(phba)) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : HBA in error 0x%lx\n", phba->state);
+ return NULL;
+ }
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : In beiscsi_session_create\n");
+ if (cmds_max > beiscsi_ep->phba->params.wrbs_per_cxn) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BS_%d : Cannot handle %d cmds."
+ "Max cmds per session supported is %d. Using %d."
+ "\n", cmds_max,
+ beiscsi_ep->phba->params.wrbs_per_cxn,
+ beiscsi_ep->phba->params.wrbs_per_cxn);
+
+ cmds_max = beiscsi_ep->phba->params.wrbs_per_cxn;
+ }
+
+ shost = phba->shost;
+ cls_session = iscsi_session_setup(&beiscsi_iscsi_transport,
+ shost, cmds_max,
+ sizeof(*beiscsi_sess),
+ sizeof(*io_task),
+ initial_cmdsn, ISCSI_MAX_TARGET);
+ if (!cls_session)
+ return NULL;
+ sess = cls_session->dd_data;
+ beiscsi_sess = sess->dd_data;
+ beiscsi_sess->bhs_pool = dma_pool_create("beiscsi_bhs_pool",
+ &phba->pcidev->dev,
+ sizeof(struct be_cmd_bhs),
+ 64, 0);
+ if (!beiscsi_sess->bhs_pool)
+ goto destroy_sess;
+
+ return cls_session;
+destroy_sess:
+ iscsi_session_teardown(cls_session);
+ return NULL;
+}
+
+/**
+ * beiscsi_session_destroy - destroys iscsi session
+ * @cls_session: pointer to iscsi cls session
+ *
+ * Destroys iSCSI session instance and releases
+ * resources allocated for it.
+ */
+void beiscsi_session_destroy(struct iscsi_cls_session *cls_session)
+{
+ struct iscsi_session *sess = cls_session->dd_data;
+ struct beiscsi_session *beiscsi_sess = sess->dd_data;
+
+ printk(KERN_INFO "In beiscsi_session_destroy\n");
+ dma_pool_destroy(beiscsi_sess->bhs_pool);
+ iscsi_session_teardown(cls_session);
+}
+
+/**
+ * beiscsi_session_fail(): Closing session with appropriate error
+ * @cls_session: ptr to session
+ **/
+void beiscsi_session_fail(struct iscsi_cls_session *cls_session)
+{
+ iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED);
+}
+
+
+/**
+ * beiscsi_conn_create - create an instance of iscsi connection
+ * @cls_session: ptr to iscsi_cls_session
+ * @cid: iscsi cid
+ */
+struct iscsi_cls_conn *
+beiscsi_conn_create(struct iscsi_cls_session *cls_session, u32 cid)
+{
+ struct beiscsi_hba *phba;
+ struct Scsi_Host *shost;
+ struct iscsi_cls_conn *cls_conn;
+ struct beiscsi_conn *beiscsi_conn;
+ struct iscsi_conn *conn;
+ struct iscsi_session *sess;
+ struct beiscsi_session *beiscsi_sess;
+
+ shost = iscsi_session_to_shost(cls_session);
+ phba = iscsi_host_priv(shost);
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : In beiscsi_conn_create ,cid"
+ "from iscsi layer=%d\n", cid);
+
+ cls_conn = iscsi_conn_setup(cls_session, sizeof(*beiscsi_conn), cid);
+ if (!cls_conn)
+ return NULL;
+
+ conn = cls_conn->dd_data;
+ beiscsi_conn = conn->dd_data;
+ beiscsi_conn->ep = NULL;
+ beiscsi_conn->phba = phba;
+ beiscsi_conn->conn = conn;
+ sess = cls_session->dd_data;
+ beiscsi_sess = sess->dd_data;
+ beiscsi_conn->beiscsi_sess = beiscsi_sess;
+ return cls_conn;
+}
+
+/**
+ * beiscsi_conn_bind - Binds iscsi session/connection with TCP connection
+ * @cls_session: pointer to iscsi cls session
+ * @cls_conn: pointer to iscsi cls conn
+ * @transport_fd: EP handle(64 bit)
+ * @is_leading: indicate if this is the session leading connection (MCS)
+ *
+ * This function binds the TCP Conn with iSCSI Connection and Session.
+ */
+int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
+ struct iscsi_cls_conn *cls_conn,
+ u64 transport_fd, int is_leading)
+{
+ struct iscsi_conn *conn = cls_conn->dd_data;
+ struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+ struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
+ struct beiscsi_hba *phba = iscsi_host_priv(shost);
+ struct hwi_controller *phwi_ctrlr = phba->phwi_ctrlr;
+ struct hwi_wrb_context *pwrb_context;
+ struct beiscsi_endpoint *beiscsi_ep;
+ struct iscsi_endpoint *ep;
+ uint16_t cri_index;
+ int rc = 0;
+
+ ep = iscsi_lookup_endpoint(transport_fd);
+ if (!ep)
+ return -EINVAL;
+
+ beiscsi_ep = ep->dd_data;
+
+ if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) {
+ rc = -EINVAL;
+ goto put_ep;
+ }
+
+ if (beiscsi_ep->phba != phba) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BS_%d : beiscsi_ep->hba=%p not equal to phba=%p\n",
+ beiscsi_ep->phba, phba);
+ rc = -EEXIST;
+ goto put_ep;
+ }
+ cri_index = BE_GET_CRI_FROM_CID(beiscsi_ep->ep_cid);
+ if (phba->conn_table[cri_index]) {
+ if (beiscsi_conn != phba->conn_table[cri_index] ||
+ beiscsi_ep != phba->conn_table[cri_index]->ep) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BS_%d : conn_table not empty at %u: cid %u conn %p:%p\n",
+ cri_index,
+ beiscsi_ep->ep_cid,
+ beiscsi_conn,
+ phba->conn_table[cri_index]);
+ rc = -EINVAL;
+ goto put_ep;
+ }
+ }
+
+ beiscsi_conn->beiscsi_conn_cid = beiscsi_ep->ep_cid;
+ beiscsi_conn->ep = beiscsi_ep;
+ beiscsi_ep->conn = beiscsi_conn;
+ /**
+ * Each connection is associated with a WRBQ kept in wrb_context.
+ * Store doorbell offset for transmit path.
+ */
+ pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
+ beiscsi_conn->doorbell_offset = pwrb_context->doorbell_offset;
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : cid %d phba->conn_table[%u]=%p\n",
+ beiscsi_ep->ep_cid, cri_index, beiscsi_conn);
+ phba->conn_table[cri_index] = beiscsi_conn;
+
+put_ep:
+ iscsi_put_endpoint(ep);
+ return rc;
+}
+
+static int beiscsi_iface_create_ipv4(struct beiscsi_hba *phba)
+{
+ if (phba->ipv4_iface)
+ return 0;
+
+ phba->ipv4_iface = iscsi_create_iface(phba->shost,
+ &beiscsi_iscsi_transport,
+ ISCSI_IFACE_TYPE_IPV4,
+ 0, 0);
+ if (!phba->ipv4_iface) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BS_%d : Could not "
+ "create default IPv4 address.\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static int beiscsi_iface_create_ipv6(struct beiscsi_hba *phba)
+{
+ if (phba->ipv6_iface)
+ return 0;
+
+ phba->ipv6_iface = iscsi_create_iface(phba->shost,
+ &beiscsi_iscsi_transport,
+ ISCSI_IFACE_TYPE_IPV6,
+ 0, 0);
+ if (!phba->ipv6_iface) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BS_%d : Could not "
+ "create default IPv6 address.\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+void beiscsi_iface_create_default(struct beiscsi_hba *phba)
+{
+ struct be_cmd_get_if_info_resp *if_info;
+
+ if (!beiscsi_if_get_info(phba, BEISCSI_IP_TYPE_V4, &if_info)) {
+ beiscsi_iface_create_ipv4(phba);
+ kfree(if_info);
+ }
+
+ if (!beiscsi_if_get_info(phba, BEISCSI_IP_TYPE_V6, &if_info)) {
+ beiscsi_iface_create_ipv6(phba);
+ kfree(if_info);
+ }
+}
+
+void beiscsi_iface_destroy_default(struct beiscsi_hba *phba)
+{
+ if (phba->ipv6_iface) {
+ iscsi_destroy_iface(phba->ipv6_iface);
+ phba->ipv6_iface = NULL;
+ }
+ if (phba->ipv4_iface) {
+ iscsi_destroy_iface(phba->ipv4_iface);
+ phba->ipv4_iface = NULL;
+ }
+}
+
+/**
+ * beiscsi_iface_config_vlan()- Set the VLAN TAG
+ * @shost: Scsi Host for the driver instance
+ * @iface_param: Interface paramters
+ *
+ * Set the VLAN TAG for the adapter or disable
+ * the VLAN config
+ *
+ * returns
+ * Success: 0
+ * Failure: Non-Zero Value
+ **/
+static int
+beiscsi_iface_config_vlan(struct Scsi_Host *shost,
+ struct iscsi_iface_param_info *iface_param)
+{
+ struct beiscsi_hba *phba = iscsi_host_priv(shost);
+ int ret = -EPERM;
+
+ switch (iface_param->param) {
+ case ISCSI_NET_PARAM_VLAN_ENABLED:
+ ret = 0;
+ if (iface_param->value[0] != ISCSI_VLAN_ENABLE)
+ ret = beiscsi_if_set_vlan(phba, BEISCSI_VLAN_DISABLE);
+ break;
+ case ISCSI_NET_PARAM_VLAN_TAG:
+ ret = beiscsi_if_set_vlan(phba,
+ *((uint16_t *)iface_param->value));
+ break;
+ }
+ return ret;
+}
+
+
+static int
+beiscsi_iface_config_ipv4(struct Scsi_Host *shost,
+ struct iscsi_iface_param_info *info,
+ void *data, uint32_t dt_len)
+{
+ struct beiscsi_hba *phba = iscsi_host_priv(shost);
+ u8 *ip = NULL, *subnet = NULL, *gw;
+ struct nlattr *nla;
+ int ret = -EPERM;
+
+ /* Check the param */
+ switch (info->param) {
+ case ISCSI_NET_PARAM_IFACE_ENABLE:
+ if (info->value[0] == ISCSI_IFACE_ENABLE)
+ ret = beiscsi_iface_create_ipv4(phba);
+ else {
+ iscsi_destroy_iface(phba->ipv4_iface);
+ phba->ipv4_iface = NULL;
+ }
+ break;
+ case ISCSI_NET_PARAM_IPV4_GW:
+ gw = info->value;
+ ret = beiscsi_if_set_gw(phba, BEISCSI_IP_TYPE_V4, gw);
+ break;
+ case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
+ if (info->value[0] == ISCSI_BOOTPROTO_DHCP)
+ ret = beiscsi_if_en_dhcp(phba, BEISCSI_IP_TYPE_V4);
+ else if (info->value[0] == ISCSI_BOOTPROTO_STATIC)
+ /* release DHCP IP address */
+ ret = beiscsi_if_en_static(phba, BEISCSI_IP_TYPE_V4,
+ NULL, NULL);
+ else
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BS_%d : Invalid BOOTPROTO: %d\n",
+ info->value[0]);
+ break;
+ case ISCSI_NET_PARAM_IPV4_ADDR:
+ ip = info->value;
+ nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_SUBNET);
+ if (nla) {
+ info = nla_data(nla);
+ subnet = info->value;
+ }
+ ret = beiscsi_if_en_static(phba, BEISCSI_IP_TYPE_V4,
+ ip, subnet);
+ break;
+ case ISCSI_NET_PARAM_IPV4_SUBNET:
+ /*
+ * OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR ioctl needs IP
+ * and subnet both. Find IP to be applied for this subnet.
+ */
+ subnet = info->value;
+ nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_ADDR);
+ if (nla) {
+ info = nla_data(nla);
+ ip = info->value;
+ }
+ ret = beiscsi_if_en_static(phba, BEISCSI_IP_TYPE_V4,
+ ip, subnet);
+ break;
+ }
+
+ return ret;
+}
+
+static int
+beiscsi_iface_config_ipv6(struct Scsi_Host *shost,
+ struct iscsi_iface_param_info *iface_param,
+ void *data, uint32_t dt_len)
+{
+ struct beiscsi_hba *phba = iscsi_host_priv(shost);
+ int ret = -EPERM;
+
+ switch (iface_param->param) {
+ case ISCSI_NET_PARAM_IFACE_ENABLE:
+ if (iface_param->value[0] == ISCSI_IFACE_ENABLE)
+ ret = beiscsi_iface_create_ipv6(phba);
+ else {
+ iscsi_destroy_iface(phba->ipv6_iface);
+ phba->ipv6_iface = NULL;
+ }
+ break;
+ case ISCSI_NET_PARAM_IPV6_ADDR:
+ ret = beiscsi_if_en_static(phba, BEISCSI_IP_TYPE_V6,
+ iface_param->value, NULL);
+ break;
+ }
+
+ return ret;
+}
+
+int beiscsi_iface_set_param(struct Scsi_Host *shost,
+ void *data, uint32_t dt_len)
+{
+ struct iscsi_iface_param_info *iface_param = NULL;
+ struct beiscsi_hba *phba = iscsi_host_priv(shost);
+ struct nlattr *attrib;
+ uint32_t rm_len = dt_len;
+ int ret;
+
+ if (!beiscsi_hba_is_online(phba)) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : HBA in error 0x%lx\n", phba->state);
+ return -EBUSY;
+ }
+
+ /* update interface_handle */
+ ret = beiscsi_if_get_handle(phba);
+ if (ret) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BS_%d : Getting Interface Handle Failed\n");
+ return ret;
+ }
+
+ nla_for_each_attr(attrib, data, dt_len, rm_len) {
+ /* ignore nla_type as it is never used */
+ if (nla_len(attrib) < sizeof(*iface_param))
+ return -EINVAL;
+
+ iface_param = nla_data(attrib);
+
+ if (iface_param->param_type != ISCSI_NET_PARAM)
+ continue;
+
+ /*
+ * BE2ISCSI only supports 1 interface
+ */
+ if (iface_param->iface_num) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BS_%d : Invalid iface_num %d."
+ "Only iface_num 0 is supported.\n",
+ iface_param->iface_num);
+
+ return -EINVAL;
+ }
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : %s.0 set param %d",
+ (iface_param->iface_type == ISCSI_IFACE_TYPE_IPV4) ?
+ "ipv4" : "ipv6", iface_param->param);
+
+ ret = -EPERM;
+ switch (iface_param->param) {
+ case ISCSI_NET_PARAM_VLAN_ENABLED:
+ case ISCSI_NET_PARAM_VLAN_TAG:
+ ret = beiscsi_iface_config_vlan(shost, iface_param);
+ break;
+ default:
+ switch (iface_param->iface_type) {
+ case ISCSI_IFACE_TYPE_IPV4:
+ ret = beiscsi_iface_config_ipv4(shost,
+ iface_param,
+ data, dt_len);
+ break;
+ case ISCSI_IFACE_TYPE_IPV6:
+ ret = beiscsi_iface_config_ipv6(shost,
+ iface_param,
+ data, dt_len);
+ break;
+ }
+ }
+
+ if (ret == -EPERM) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BS_%d : %s.0 set param %d not permitted",
+ (iface_param->iface_type ==
+ ISCSI_IFACE_TYPE_IPV4) ? "ipv4" : "ipv6",
+ iface_param->param);
+ ret = 0;
+ }
+ if (ret)
+ break;
+ }
+
+ return ret;
+}
+
+static int __beiscsi_iface_get_param(struct beiscsi_hba *phba,
+ struct iscsi_iface *iface,
+ int param, char *buf)
+{
+ struct be_cmd_get_if_info_resp *if_info;
+ int len, ip_type = BEISCSI_IP_TYPE_V4;
+
+ if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
+ ip_type = BEISCSI_IP_TYPE_V6;
+
+ len = beiscsi_if_get_info(phba, ip_type, &if_info);
+ if (len)
+ return len;
+
+ switch (param) {
+ case ISCSI_NET_PARAM_IPV4_ADDR:
+ len = sprintf(buf, "%pI4\n", if_info->ip_addr.addr);
+ break;
+ case ISCSI_NET_PARAM_IPV6_ADDR:
+ len = sprintf(buf, "%pI6\n", if_info->ip_addr.addr);
+ break;
+ case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
+ if (!if_info->dhcp_state)
+ len = sprintf(buf, "static\n");
+ else
+ len = sprintf(buf, "dhcp\n");
+ break;
+ case ISCSI_NET_PARAM_IPV4_SUBNET:
+ len = sprintf(buf, "%pI4\n", if_info->ip_addr.subnet_mask);
+ break;
+ case ISCSI_NET_PARAM_VLAN_ENABLED:
+ len = sprintf(buf, "%s\n",
+ (if_info->vlan_priority == BEISCSI_VLAN_DISABLE) ?
+ "disable" : "enable");
+ break;
+ case ISCSI_NET_PARAM_VLAN_ID:
+ if (if_info->vlan_priority == BEISCSI_VLAN_DISABLE)
+ len = -EINVAL;
+ else
+ len = sprintf(buf, "%d\n",
+ (if_info->vlan_priority &
+ ISCSI_MAX_VLAN_ID));
+ break;
+ case ISCSI_NET_PARAM_VLAN_PRIORITY:
+ if (if_info->vlan_priority == BEISCSI_VLAN_DISABLE)
+ len = -EINVAL;
+ else
+ len = sprintf(buf, "%d\n",
+ ((if_info->vlan_priority >> 13) &
+ ISCSI_MAX_VLAN_PRIORITY));
+ break;
+ default:
+ WARN_ON(1);
+ }
+
+ kfree(if_info);
+ return len;
+}
+
+int beiscsi_iface_get_param(struct iscsi_iface *iface,
+ enum iscsi_param_type param_type,
+ int param, char *buf)
+{
+ struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
+ struct beiscsi_hba *phba = iscsi_host_priv(shost);
+ struct be_cmd_get_def_gateway_resp gateway;
+ int len = -EPERM;
+
+ if (param_type != ISCSI_NET_PARAM)
+ return 0;
+ if (!beiscsi_hba_is_online(phba)) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : HBA in error 0x%lx\n", phba->state);
+ return -EBUSY;
+ }
+
+ switch (param) {
+ case ISCSI_NET_PARAM_IPV4_ADDR:
+ case ISCSI_NET_PARAM_IPV4_SUBNET:
+ case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
+ case ISCSI_NET_PARAM_IPV6_ADDR:
+ case ISCSI_NET_PARAM_VLAN_ENABLED:
+ case ISCSI_NET_PARAM_VLAN_ID:
+ case ISCSI_NET_PARAM_VLAN_PRIORITY:
+ len = __beiscsi_iface_get_param(phba, iface, param, buf);
+ break;
+ case ISCSI_NET_PARAM_IFACE_ENABLE:
+ if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
+ len = sprintf(buf, "%s\n",
+ phba->ipv4_iface ? "enable" : "disable");
+ else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
+ len = sprintf(buf, "%s\n",
+ phba->ipv6_iface ? "enable" : "disable");
+ break;
+ case ISCSI_NET_PARAM_IPV4_GW:
+ memset(&gateway, 0, sizeof(gateway));
+ len = beiscsi_if_get_gw(phba, BEISCSI_IP_TYPE_V4, &gateway);
+ if (!len)
+ len = sprintf(buf, "%pI4\n", &gateway.ip_addr.addr);
+ break;
+ }
+
+ return len;
+}
+
+/**
+ * beiscsi_ep_get_param - get the iscsi parameter
+ * @ep: pointer to iscsi ep
+ * @param: parameter type identifier
+ * @buf: buffer pointer
+ *
+ * returns iscsi parameter
+ */
+int beiscsi_ep_get_param(struct iscsi_endpoint *ep,
+ enum iscsi_param param, char *buf)
+{
+ struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
+ int len;
+
+ beiscsi_log(beiscsi_ep->phba, KERN_INFO,
+ BEISCSI_LOG_CONFIG,
+ "BS_%d : In beiscsi_ep_get_param,"
+ " param= %d\n", param);
+
+ switch (param) {
+ case ISCSI_PARAM_CONN_PORT:
+ len = sprintf(buf, "%hu\n", beiscsi_ep->dst_tcpport);
+ break;
+ case ISCSI_PARAM_CONN_ADDRESS:
+ if (beiscsi_ep->ip_type == BEISCSI_IP_TYPE_V4)
+ len = sprintf(buf, "%pI4\n", &beiscsi_ep->dst_addr);
+ else
+ len = sprintf(buf, "%pI6\n", &beiscsi_ep->dst6_addr);
+ break;
+ default:
+ len = -EPERM;
+ }
+ return len;
+}
+
+int beiscsi_set_param(struct iscsi_cls_conn *cls_conn,
+ enum iscsi_param param, char *buf, int buflen)
+{
+ struct iscsi_conn *conn = cls_conn->dd_data;
+ struct iscsi_session *session = conn->session;
+ struct beiscsi_hba *phba = NULL;
+ int ret;
+
+ phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : In beiscsi_conn_set_param,"
+ " param= %d\n", param);
+
+ ret = iscsi_set_param(cls_conn, param, buf, buflen);
+ if (ret)
+ return ret;
+ /*
+ * If userspace tried to set the value to higher than we can
+ * support override here.
+ */
+ switch (param) {
+ case ISCSI_PARAM_FIRST_BURST:
+ if (session->first_burst > 8192)
+ session->first_burst = 8192;
+ break;
+ case ISCSI_PARAM_MAX_RECV_DLENGTH:
+ if (conn->max_recv_dlength > 65536)
+ conn->max_recv_dlength = 65536;
+ break;
+ case ISCSI_PARAM_MAX_BURST:
+ if (session->max_burst > 262144)
+ session->max_burst = 262144;
+ break;
+ case ISCSI_PARAM_MAX_XMIT_DLENGTH:
+ if (conn->max_xmit_dlength > 65536)
+ conn->max_xmit_dlength = 65536;
+ fallthrough;
+ default:
+ return 0;
+ }
+
+ return 0;
+}
+
+/**
+ * beiscsi_get_port_state - Get the Port State
+ * @shost : pointer to scsi_host structure
+ *
+ */
+static void beiscsi_get_port_state(struct Scsi_Host *shost)
+{
+ struct beiscsi_hba *phba = iscsi_host_priv(shost);
+ struct iscsi_cls_host *ihost = shost->shost_data;
+
+ ihost->port_state = test_bit(BEISCSI_HBA_LINK_UP, &phba->state) ?
+ ISCSI_PORT_STATE_UP : ISCSI_PORT_STATE_DOWN;
+}
+
+/**
+ * beiscsi_get_port_speed - Get the Port Speed from Adapter
+ * @shost : pointer to scsi_host structure
+ *
+ */
+static void beiscsi_get_port_speed(struct Scsi_Host *shost)
+{
+ struct beiscsi_hba *phba = iscsi_host_priv(shost);
+ struct iscsi_cls_host *ihost = shost->shost_data;
+
+ switch (phba->port_speed) {
+ case BE2ISCSI_LINK_SPEED_10MBPS:
+ ihost->port_speed = ISCSI_PORT_SPEED_10MBPS;
+ break;
+ case BE2ISCSI_LINK_SPEED_100MBPS:
+ ihost->port_speed = ISCSI_PORT_SPEED_100MBPS;
+ break;
+ case BE2ISCSI_LINK_SPEED_1GBPS:
+ ihost->port_speed = ISCSI_PORT_SPEED_1GBPS;
+ break;
+ case BE2ISCSI_LINK_SPEED_10GBPS:
+ ihost->port_speed = ISCSI_PORT_SPEED_10GBPS;
+ break;
+ case BE2ISCSI_LINK_SPEED_25GBPS:
+ ihost->port_speed = ISCSI_PORT_SPEED_25GBPS;
+ break;
+ case BE2ISCSI_LINK_SPEED_40GBPS:
+ ihost->port_speed = ISCSI_PORT_SPEED_40GBPS;
+ break;
+ default:
+ ihost->port_speed = ISCSI_PORT_SPEED_UNKNOWN;
+ }
+}
+
+/**
+ * beiscsi_get_host_param - get the iscsi parameter
+ * @shost: pointer to scsi_host structure
+ * @param: parameter type identifier
+ * @buf: buffer pointer
+ *
+ */
+int beiscsi_get_host_param(struct Scsi_Host *shost,
+ enum iscsi_host_param param, char *buf)
+{
+ struct beiscsi_hba *phba = iscsi_host_priv(shost);
+ int status = 0;
+
+ if (!beiscsi_hba_is_online(phba)) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : HBA in error 0x%lx\n", phba->state);
+ return 0;
+ }
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : In beiscsi_get_host_param, param = %d\n", param);
+
+ switch (param) {
+ case ISCSI_HOST_PARAM_HWADDRESS:
+ status = beiscsi_get_macaddr(buf, phba);
+ if (status < 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BS_%d : beiscsi_get_macaddr Failed\n");
+ return 0;
+ }
+ break;
+ case ISCSI_HOST_PARAM_INITIATOR_NAME:
+ /* try fetching user configured name first */
+ status = beiscsi_get_initiator_name(phba, buf, true);
+ if (status < 0) {
+ status = beiscsi_get_initiator_name(phba, buf, false);
+ if (status < 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BS_%d : Retrieving Initiator Name Failed\n");
+ status = 0;
+ }
+ }
+ break;
+ case ISCSI_HOST_PARAM_PORT_STATE:
+ beiscsi_get_port_state(shost);
+ status = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
+ break;
+ case ISCSI_HOST_PARAM_PORT_SPEED:
+ beiscsi_get_port_speed(shost);
+ status = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
+ break;
+ default:
+ return iscsi_host_get_param(shost, param, buf);
+ }
+ return status;
+}
+
+int beiscsi_get_macaddr(char *buf, struct beiscsi_hba *phba)
+{
+ struct be_cmd_get_nic_conf_resp resp;
+ int rc;
+
+ if (phba->mac_addr_set)
+ return sysfs_format_mac(buf, phba->mac_address, ETH_ALEN);
+
+ memset(&resp, 0, sizeof(resp));
+ rc = mgmt_get_nic_conf(phba, &resp);
+ if (rc)
+ return rc;
+
+ phba->mac_addr_set = true;
+ memcpy(phba->mac_address, resp.mac_address, ETH_ALEN);
+ return sysfs_format_mac(buf, phba->mac_address, ETH_ALEN);
+}
+
+/**
+ * beiscsi_conn_get_stats - get the iscsi stats
+ * @cls_conn: pointer to iscsi cls conn
+ * @stats: pointer to iscsi_stats structure
+ *
+ * returns iscsi stats
+ */
+void beiscsi_conn_get_stats(struct iscsi_cls_conn *cls_conn,
+ struct iscsi_stats *stats)
+{
+ struct iscsi_conn *conn = cls_conn->dd_data;
+ struct beiscsi_hba *phba = NULL;
+
+ phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : In beiscsi_conn_get_stats\n");
+
+ stats->txdata_octets = conn->txdata_octets;
+ stats->rxdata_octets = conn->rxdata_octets;
+ stats->dataout_pdus = conn->dataout_pdus_cnt;
+ stats->scsirsp_pdus = conn->scsirsp_pdus_cnt;
+ stats->scsicmd_pdus = conn->scsicmd_pdus_cnt;
+ stats->datain_pdus = conn->datain_pdus_cnt;
+ stats->tmfrsp_pdus = conn->tmfrsp_pdus_cnt;
+ stats->tmfcmd_pdus = conn->tmfcmd_pdus_cnt;
+ stats->r2t_pdus = conn->r2t_pdus_cnt;
+ stats->digest_err = 0;
+ stats->timeout_err = 0;
+ stats->custom_length = 1;
+ strcpy(stats->custom[0].desc, "eh_abort_cnt");
+ stats->custom[0].value = conn->eh_abort_cnt;
+}
+
+/**
+ * beiscsi_set_params_for_offld - get the parameters for offload
+ * @beiscsi_conn: pointer to beiscsi_conn
+ * @params: pointer to offload_params structure
+ */
+static void beiscsi_set_params_for_offld(struct beiscsi_conn *beiscsi_conn,
+ struct beiscsi_offload_params *params)
+{
+ struct iscsi_conn *conn = beiscsi_conn->conn;
+ struct iscsi_session *session = conn->session;
+
+ AMAP_SET_BITS(struct amap_beiscsi_offload_params, max_burst_length,
+ params, session->max_burst);
+ AMAP_SET_BITS(struct amap_beiscsi_offload_params,
+ max_send_data_segment_length, params,
+ conn->max_xmit_dlength);
+ AMAP_SET_BITS(struct amap_beiscsi_offload_params, first_burst_length,
+ params, session->first_burst);
+ AMAP_SET_BITS(struct amap_beiscsi_offload_params, erl, params,
+ session->erl);
+ AMAP_SET_BITS(struct amap_beiscsi_offload_params, dde, params,
+ conn->datadgst_en);
+ AMAP_SET_BITS(struct amap_beiscsi_offload_params, hde, params,
+ conn->hdrdgst_en);
+ AMAP_SET_BITS(struct amap_beiscsi_offload_params, ir2t, params,
+ session->initial_r2t_en);
+ AMAP_SET_BITS(struct amap_beiscsi_offload_params, imd, params,
+ session->imm_data_en);
+ AMAP_SET_BITS(struct amap_beiscsi_offload_params,
+ data_seq_inorder, params,
+ session->dataseq_inorder_en);
+ AMAP_SET_BITS(struct amap_beiscsi_offload_params,
+ pdu_seq_inorder, params,
+ session->pdu_inorder_en);
+ AMAP_SET_BITS(struct amap_beiscsi_offload_params, max_r2t, params,
+ session->max_r2t);
+ AMAP_SET_BITS(struct amap_beiscsi_offload_params, exp_statsn, params,
+ (conn->exp_statsn - 1));
+ AMAP_SET_BITS(struct amap_beiscsi_offload_params,
+ max_recv_data_segment_length, params,
+ conn->max_recv_dlength);
+
+}
+
+/**
+ * beiscsi_conn_start - offload of session to chip
+ * @cls_conn: pointer to beiscsi_conn
+ */
+int beiscsi_conn_start(struct iscsi_cls_conn *cls_conn)
+{
+ struct iscsi_conn *conn = cls_conn->dd_data;
+ struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+ struct beiscsi_endpoint *beiscsi_ep;
+ struct beiscsi_offload_params params;
+ struct beiscsi_hba *phba;
+
+ phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
+
+ if (!beiscsi_hba_is_online(phba)) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : HBA in error 0x%lx\n", phba->state);
+ return -EBUSY;
+ }
+ beiscsi_log(beiscsi_conn->phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : In beiscsi_conn_start\n");
+
+ memset(&params, 0, sizeof(struct beiscsi_offload_params));
+ beiscsi_ep = beiscsi_conn->ep;
+ if (!beiscsi_ep)
+ beiscsi_log(beiscsi_conn->phba, KERN_ERR,
+ BEISCSI_LOG_CONFIG,
+ "BS_%d : In beiscsi_conn_start , no beiscsi_ep\n");
+
+ beiscsi_conn->login_in_progress = 0;
+ beiscsi_set_params_for_offld(beiscsi_conn, &params);
+ beiscsi_offload_connection(beiscsi_conn, &params);
+ iscsi_conn_start(cls_conn);
+ return 0;
+}
+
+/**
+ * beiscsi_get_cid - Allocate a cid
+ * @phba: The phba instance
+ */
+static int beiscsi_get_cid(struct beiscsi_hba *phba)
+{
+ uint16_t cid_avlbl_ulp0, cid_avlbl_ulp1;
+ unsigned short cid, cid_from_ulp;
+ struct ulp_cid_info *cid_info;
+
+ /* Find the ULP which has more CID available */
+ cid_avlbl_ulp0 = (phba->cid_array_info[BEISCSI_ULP0]) ?
+ BEISCSI_ULP0_AVLBL_CID(phba) : 0;
+ cid_avlbl_ulp1 = (phba->cid_array_info[BEISCSI_ULP1]) ?
+ BEISCSI_ULP1_AVLBL_CID(phba) : 0;
+ cid_from_ulp = (cid_avlbl_ulp0 > cid_avlbl_ulp1) ?
+ BEISCSI_ULP0 : BEISCSI_ULP1;
+ /**
+ * If iSCSI protocol is loaded only on ULP 0, and when cid_avlbl_ulp
+ * is ZERO for both, ULP 1 is returned.
+ * Check if ULP is loaded before getting new CID.
+ */
+ if (!test_bit(cid_from_ulp, (void *)&phba->fw_config.ulp_supported))
+ return BE_INVALID_CID;
+
+ cid_info = phba->cid_array_info[cid_from_ulp];
+ cid = cid_info->cid_array[cid_info->cid_alloc];
+ if (!cid_info->avlbl_cids || cid == BE_INVALID_CID) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BS_%d : failed to get cid: available %u:%u\n",
+ cid_info->avlbl_cids, cid_info->cid_free);
+ return BE_INVALID_CID;
+ }
+ /* empty the slot */
+ cid_info->cid_array[cid_info->cid_alloc++] = BE_INVALID_CID;
+ if (cid_info->cid_alloc == BEISCSI_GET_CID_COUNT(phba, cid_from_ulp))
+ cid_info->cid_alloc = 0;
+ cid_info->avlbl_cids--;
+ return cid;
+}
+
+/**
+ * beiscsi_put_cid - Free the cid
+ * @phba: The phba for which the cid is being freed
+ * @cid: The cid to free
+ */
+static void beiscsi_put_cid(struct beiscsi_hba *phba, unsigned short cid)
+{
+ uint16_t cri_index = BE_GET_CRI_FROM_CID(cid);
+ struct hwi_wrb_context *pwrb_context;
+ struct hwi_controller *phwi_ctrlr;
+ struct ulp_cid_info *cid_info;
+ uint16_t cid_post_ulp;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
+ cid_post_ulp = pwrb_context->ulp_num;
+
+ cid_info = phba->cid_array_info[cid_post_ulp];
+ /* fill only in empty slot */
+ if (cid_info->cid_array[cid_info->cid_free] != BE_INVALID_CID) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BS_%d : failed to put cid %u: available %u:%u\n",
+ cid, cid_info->avlbl_cids, cid_info->cid_free);
+ return;
+ }
+ cid_info->cid_array[cid_info->cid_free++] = cid;
+ if (cid_info->cid_free == BEISCSI_GET_CID_COUNT(phba, cid_post_ulp))
+ cid_info->cid_free = 0;
+ cid_info->avlbl_cids++;
+}
+
+/**
+ * beiscsi_free_ep - free endpoint
+ * @beiscsi_ep: pointer to device endpoint struct
+ */
+static void beiscsi_free_ep(struct beiscsi_endpoint *beiscsi_ep)
+{
+ struct beiscsi_hba *phba = beiscsi_ep->phba;
+ struct beiscsi_conn *beiscsi_conn;
+
+ beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
+ beiscsi_ep->phba = NULL;
+ /* clear this to track freeing in beiscsi_ep_disconnect */
+ phba->ep_array[BE_GET_CRI_FROM_CID(beiscsi_ep->ep_cid)] = NULL;
+
+ /**
+ * Check if any connection resource allocated by driver
+ * is to be freed.This case occurs when target redirection
+ * or connection retry is done.
+ **/
+ if (!beiscsi_ep->conn)
+ return;
+
+ beiscsi_conn = beiscsi_ep->conn;
+ /**
+ * Break ep->conn link here so that completions after
+ * this are ignored.
+ */
+ beiscsi_ep->conn = NULL;
+ if (beiscsi_conn->login_in_progress) {
+ beiscsi_free_mgmt_task_handles(beiscsi_conn,
+ beiscsi_conn->task);
+ beiscsi_conn->login_in_progress = 0;
+ }
+}
+
+/**
+ * beiscsi_open_conn - Ask FW to open a TCP connection
+ * @ep: pointer to device endpoint struct
+ * @src_addr: The source IP address
+ * @dst_addr: The Destination IP address
+ * @non_blocking: blocking or non-blocking call
+ *
+ * Asks the FW to open a TCP connection
+ */
+static int beiscsi_open_conn(struct iscsi_endpoint *ep,
+ struct sockaddr *src_addr,
+ struct sockaddr *dst_addr, int non_blocking)
+{
+ struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
+ struct beiscsi_hba *phba = beiscsi_ep->phba;
+ struct tcp_connect_and_offload_out *ptcpcnct_out;
+ struct be_dma_mem nonemb_cmd;
+ unsigned int tag, req_memsize;
+ int ret = -ENOMEM;
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : In beiscsi_open_conn\n");
+
+ beiscsi_ep->ep_cid = beiscsi_get_cid(phba);
+ if (beiscsi_ep->ep_cid == BE_INVALID_CID) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BS_%d : No free cid available\n");
+ return ret;
+ }
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : In beiscsi_open_conn, ep_cid=%d\n",
+ beiscsi_ep->ep_cid);
+
+ phba->ep_array[BE_GET_CRI_FROM_CID
+ (beiscsi_ep->ep_cid)] = ep;
+
+ beiscsi_ep->cid_vld = 0;
+
+ if (is_chip_be2_be3r(phba))
+ req_memsize = sizeof(struct tcp_connect_and_offload_in);
+ else
+ req_memsize = sizeof(struct tcp_connect_and_offload_in_v1);
+
+ nonemb_cmd.va = dma_alloc_coherent(&phba->ctrl.pdev->dev,
+ req_memsize,
+ &nonemb_cmd.dma, GFP_KERNEL);
+ if (nonemb_cmd.va == NULL) {
+
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BS_%d : Failed to allocate memory for"
+ " mgmt_open_connection\n");
+
+ beiscsi_free_ep(beiscsi_ep);
+ return -ENOMEM;
+ }
+ nonemb_cmd.size = req_memsize;
+ memset(nonemb_cmd.va, 0, nonemb_cmd.size);
+ tag = mgmt_open_connection(phba, dst_addr, beiscsi_ep, &nonemb_cmd);
+ if (!tag) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BS_%d : mgmt_open_connection Failed for cid=%d\n",
+ beiscsi_ep->ep_cid);
+
+ dma_free_coherent(&phba->ctrl.pdev->dev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
+ beiscsi_free_ep(beiscsi_ep);
+ return -EAGAIN;
+ }
+
+ ret = beiscsi_mccq_compl_wait(phba, tag, NULL, &nonemb_cmd);
+ if (ret) {
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+ "BS_%d : mgmt_open_connection Failed");
+
+ if (ret != -EBUSY)
+ dma_free_coherent(&phba->ctrl.pdev->dev,
+ nonemb_cmd.size, nonemb_cmd.va,
+ nonemb_cmd.dma);
+
+ beiscsi_free_ep(beiscsi_ep);
+ return ret;
+ }
+
+ ptcpcnct_out = (struct tcp_connect_and_offload_out *)nonemb_cmd.va;
+ beiscsi_ep = ep->dd_data;
+ beiscsi_ep->fw_handle = ptcpcnct_out->connection_handle;
+ beiscsi_ep->cid_vld = 1;
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : mgmt_open_connection Success\n");
+
+ dma_free_coherent(&phba->ctrl.pdev->dev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
+ return 0;
+}
+
+/**
+ * beiscsi_ep_connect - Ask chip to create TCP Conn
+ * @shost: Pointer to scsi_host structure
+ * @dst_addr: The IP address of Target
+ * @non_blocking: blocking or non-blocking call
+ *
+ * This routines first asks chip to create a connection and then allocates an EP
+ */
+struct iscsi_endpoint *
+beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
+ int non_blocking)
+{
+ struct beiscsi_hba *phba;
+ struct beiscsi_endpoint *beiscsi_ep;
+ struct iscsi_endpoint *ep;
+ int ret;
+
+ if (!shost) {
+ ret = -ENXIO;
+ pr_err("beiscsi_ep_connect shost is NULL\n");
+ return ERR_PTR(ret);
+ }
+
+ phba = iscsi_host_priv(shost);
+ if (!beiscsi_hba_is_online(phba)) {
+ ret = -EIO;
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : HBA in error 0x%lx\n", phba->state);
+ return ERR_PTR(ret);
+ }
+ if (!test_bit(BEISCSI_HBA_LINK_UP, &phba->state)) {
+ ret = -EBUSY;
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+ "BS_%d : The Adapter Port state is Down!!!\n");
+ return ERR_PTR(ret);
+ }
+
+ ep = iscsi_create_endpoint(sizeof(struct beiscsi_endpoint));
+ if (!ep) {
+ ret = -ENOMEM;
+ return ERR_PTR(ret);
+ }
+
+ beiscsi_ep = ep->dd_data;
+ beiscsi_ep->phba = phba;
+ beiscsi_ep->openiscsi_ep = ep;
+ ret = beiscsi_open_conn(ep, NULL, dst_addr, non_blocking);
+ if (ret) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BS_%d : Failed in beiscsi_open_conn\n");
+ goto free_ep;
+ }
+
+ return ep;
+
+free_ep:
+ iscsi_destroy_endpoint(ep);
+ return ERR_PTR(ret);
+}
+
+/**
+ * beiscsi_ep_poll - Poll to see if connection is established
+ * @ep: endpoint to be used
+ * @timeout_ms: timeout specified in millisecs
+ *
+ * Poll to see if TCP connection established
+ */
+int beiscsi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
+{
+ struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
+
+ beiscsi_log(beiscsi_ep->phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : In beiscsi_ep_poll\n");
+
+ if (beiscsi_ep->cid_vld == 1)
+ return 1;
+ else
+ return 0;
+}
+
+/**
+ * beiscsi_flush_cq()- Flush the CQ created.
+ * @phba: ptr device priv structure.
+ *
+ * Before the connection resource are freed flush
+ * all the CQ enteries
+ **/
+static void beiscsi_flush_cq(struct beiscsi_hba *phba)
+{
+ uint16_t i;
+ struct be_eq_obj *pbe_eq;
+ struct hwi_controller *phwi_ctrlr;
+ struct hwi_context_memory *phwi_context;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+
+ for (i = 0; i < phba->num_cpus; i++) {
+ pbe_eq = &phwi_context->be_eq[i];
+ irq_poll_disable(&pbe_eq->iopoll);
+ beiscsi_process_cq(pbe_eq, BE2_MAX_NUM_CQ_PROC);
+ irq_poll_enable(&pbe_eq->iopoll);
+ }
+}
+
+/**
+ * beiscsi_conn_close - Invalidate and upload connection
+ * @beiscsi_ep: pointer to device endpoint struct
+ *
+ * Returns 0 on success, -1 on failure.
+ */
+static int beiscsi_conn_close(struct beiscsi_endpoint *beiscsi_ep)
+{
+ struct beiscsi_hba *phba = beiscsi_ep->phba;
+ unsigned int tag, attempts;
+ int ret;
+
+ /**
+ * Without successfully invalidating and uploading connection
+ * driver can't reuse the CID so attempt more than once.
+ */
+ attempts = 0;
+ while (attempts++ < 3) {
+ tag = beiscsi_invalidate_cxn(phba, beiscsi_ep);
+ if (tag) {
+ ret = beiscsi_mccq_compl_wait(phba, tag, NULL, NULL);
+ if (!ret)
+ break;
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : invalidate conn failed cid %d\n",
+ beiscsi_ep->ep_cid);
+ }
+ }
+
+ /* wait for all completions to arrive, then process them */
+ msleep(250);
+ /* flush CQ entries */
+ beiscsi_flush_cq(phba);
+
+ if (attempts > 3)
+ return -1;
+
+ attempts = 0;
+ while (attempts++ < 3) {
+ tag = beiscsi_upload_cxn(phba, beiscsi_ep);
+ if (tag) {
+ ret = beiscsi_mccq_compl_wait(phba, tag, NULL, NULL);
+ if (!ret)
+ break;
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : upload conn failed cid %d\n",
+ beiscsi_ep->ep_cid);
+ }
+ }
+ if (attempts > 3)
+ return -1;
+
+ return 0;
+}
+
+/**
+ * beiscsi_ep_disconnect - Tears down the TCP connection
+ * @ep: endpoint to be used
+ *
+ * Tears down the TCP connection
+ */
+void beiscsi_ep_disconnect(struct iscsi_endpoint *ep)
+{
+ struct beiscsi_endpoint *beiscsi_ep;
+ struct beiscsi_hba *phba;
+ uint16_t cri_index;
+
+ beiscsi_ep = ep->dd_data;
+ phba = beiscsi_ep->phba;
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : In beiscsi_ep_disconnect for ep_cid = %u\n",
+ beiscsi_ep->ep_cid);
+
+ cri_index = BE_GET_CRI_FROM_CID(beiscsi_ep->ep_cid);
+ if (!phba->ep_array[cri_index]) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BS_%d : ep_array at %u cid %u empty\n",
+ cri_index,
+ beiscsi_ep->ep_cid);
+ return;
+ }
+
+ if (!beiscsi_hba_is_online(phba)) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BS_%d : HBA in error 0x%lx\n", phba->state);
+ } else {
+ /**
+ * Make CID available even if close fails.
+ * If not freed, FW might fail open using the CID.
+ */
+ if (beiscsi_conn_close(beiscsi_ep) < 0)
+ __beiscsi_log(phba, KERN_ERR,
+ "BS_%d : close conn failed cid %d\n",
+ beiscsi_ep->ep_cid);
+ }
+
+ beiscsi_free_ep(beiscsi_ep);
+ if (!phba->conn_table[cri_index])
+ __beiscsi_log(phba, KERN_ERR,
+ "BS_%d : conn_table empty at %u: cid %u\n",
+ cri_index, beiscsi_ep->ep_cid);
+ phba->conn_table[cri_index] = NULL;
+ iscsi_destroy_endpoint(beiscsi_ep->openiscsi_ep);
+}
+
+umode_t beiscsi_attr_is_visible(int param_type, int param)
+{
+ switch (param_type) {
+ case ISCSI_NET_PARAM:
+ switch (param) {
+ case ISCSI_NET_PARAM_IFACE_ENABLE:
+ case ISCSI_NET_PARAM_IPV4_ADDR:
+ case ISCSI_NET_PARAM_IPV4_SUBNET:
+ case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
+ case ISCSI_NET_PARAM_IPV4_GW:
+ case ISCSI_NET_PARAM_IPV6_ADDR:
+ case ISCSI_NET_PARAM_VLAN_ID:
+ case ISCSI_NET_PARAM_VLAN_PRIORITY:
+ case ISCSI_NET_PARAM_VLAN_ENABLED:
+ return S_IRUGO;
+ default:
+ return 0;
+ }
+ case ISCSI_HOST_PARAM:
+ switch (param) {
+ case ISCSI_HOST_PARAM_HWADDRESS:
+ case ISCSI_HOST_PARAM_INITIATOR_NAME:
+ case ISCSI_HOST_PARAM_PORT_STATE:
+ case ISCSI_HOST_PARAM_PORT_SPEED:
+ return S_IRUGO;
+ default:
+ return 0;
+ }
+ case ISCSI_PARAM:
+ switch (param) {
+ case ISCSI_PARAM_MAX_RECV_DLENGTH:
+ case ISCSI_PARAM_MAX_XMIT_DLENGTH:
+ case ISCSI_PARAM_HDRDGST_EN:
+ case ISCSI_PARAM_DATADGST_EN:
+ case ISCSI_PARAM_CONN_ADDRESS:
+ case ISCSI_PARAM_CONN_PORT:
+ case ISCSI_PARAM_EXP_STATSN:
+ case ISCSI_PARAM_PERSISTENT_ADDRESS:
+ case ISCSI_PARAM_PERSISTENT_PORT:
+ case ISCSI_PARAM_PING_TMO:
+ case ISCSI_PARAM_RECV_TMO:
+ case ISCSI_PARAM_INITIAL_R2T_EN:
+ case ISCSI_PARAM_MAX_R2T:
+ case ISCSI_PARAM_IMM_DATA_EN:
+ case ISCSI_PARAM_FIRST_BURST:
+ case ISCSI_PARAM_MAX_BURST:
+ case ISCSI_PARAM_PDU_INORDER_EN:
+ case ISCSI_PARAM_DATASEQ_INORDER_EN:
+ case ISCSI_PARAM_ERL:
+ case ISCSI_PARAM_TARGET_NAME:
+ case ISCSI_PARAM_TPGT:
+ case ISCSI_PARAM_USERNAME:
+ case ISCSI_PARAM_PASSWORD:
+ case ISCSI_PARAM_USERNAME_IN:
+ case ISCSI_PARAM_PASSWORD_IN:
+ case ISCSI_PARAM_FAST_ABORT:
+ case ISCSI_PARAM_ABORT_TMO:
+ case ISCSI_PARAM_LU_RESET_TMO:
+ case ISCSI_PARAM_IFACE_NAME:
+ case ISCSI_PARAM_INITIATOR_NAME:
+ return S_IRUGO;
+ default:
+ return 0;
+ }
+ }
+
+ return 0;
+}
diff --git a/drivers/scsi/be2iscsi/be_iscsi.h b/drivers/scsi/be2iscsi/be_iscsi.h
new file mode 100644
index 000000000..8c88657ee
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be_iscsi.h
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2017 Broadcom. All Rights Reserved.
+ * The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
+ *
+ * Contact Information:
+ * linux-drivers@broadcom.com
+ */
+
+#ifndef _BE_ISCSI_
+#define _BE_ISCSI_
+
+#include "be_main.h"
+#include "be_mgmt.h"
+
+void beiscsi_iface_create_default(struct beiscsi_hba *phba);
+
+void beiscsi_iface_destroy_default(struct beiscsi_hba *phba);
+
+int beiscsi_iface_get_param(struct iscsi_iface *iface,
+ enum iscsi_param_type param_type,
+ int param, char *buf);
+
+int beiscsi_iface_set_param(struct Scsi_Host *shost,
+ void *data, uint32_t count);
+
+umode_t beiscsi_attr_is_visible(int param_type, int param);
+
+void beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn,
+ struct beiscsi_offload_params *params);
+
+void beiscsi_offload_iscsi(struct beiscsi_hba *phba, struct iscsi_conn *conn,
+ struct beiscsi_conn *beiscsi_conn,
+ unsigned int fw_handle);
+
+struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep,
+ uint16_t cmds_max,
+ uint16_t qdepth,
+ uint32_t initial_cmdsn);
+
+void beiscsi_session_destroy(struct iscsi_cls_session *cls_session);
+
+void beiscsi_session_fail(struct iscsi_cls_session *cls_session);
+
+struct iscsi_cls_conn *beiscsi_conn_create(struct iscsi_cls_session
+ *cls_session, uint32_t cid);
+
+int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
+ struct iscsi_cls_conn *cls_conn,
+ uint64_t transport_fd, int is_leading);
+
+int beiscsi_ep_get_param(struct iscsi_endpoint *ep, enum iscsi_param param,
+ char *buf);
+
+int beiscsi_get_host_param(struct Scsi_Host *shost,
+ enum iscsi_host_param param, char *buf);
+
+int beiscsi_get_macaddr(char *buf, struct beiscsi_hba *phba);
+
+int beiscsi_set_param(struct iscsi_cls_conn *cls_conn,
+ enum iscsi_param param, char *buf, int buflen);
+
+int beiscsi_conn_start(struct iscsi_cls_conn *cls_conn);
+
+struct iscsi_endpoint *beiscsi_ep_connect(struct Scsi_Host *shost,
+ struct sockaddr *dst_addr,
+ int non_blocking);
+
+int beiscsi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms);
+
+void beiscsi_ep_disconnect(struct iscsi_endpoint *ep);
+
+void beiscsi_conn_get_stats(struct iscsi_cls_conn *cls_conn,
+ struct iscsi_stats *stats);
+
+#endif
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
new file mode 100644
index 000000000..b6df0d431
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -0,0 +1,5872 @@
+/*
+ * This file is part of the Emulex Linux Device Driver for Enterprise iSCSI
+ * Host Bus Adapters. Refer to the README file included with this package
+ * for driver version and adapter compatibility.
+ *
+ * Copyright (c) 2018 Broadcom. All Rights Reserved.
+ * The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
+ *
+ * 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. ALL EXPRESS
+ * OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
+ * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
+ * OR NON-INFRINGEMENT, ARE DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH
+ * DISCLAIMERS ARE HELD TO BE LEGALLY INVALID.
+ * See the GNU General Public License for more details, a copy of which
+ * can be found in the file COPYING included with this package.
+ *
+ * Contact Information:
+ * linux-drivers@broadcom.com
+ *
+ */
+
+#include <linux/reboot.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/blkdev.h>
+#include <linux/pci.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/semaphore.h>
+#include <linux/iscsi_boot_sysfs.h>
+#include <linux/module.h>
+#include <linux/bsg-lib.h>
+#include <linux/irq_poll.h>
+
+#include <scsi/libiscsi.h>
+#include <scsi/scsi_bsg_iscsi.h>
+#include <scsi/scsi_netlink.h>
+#include <scsi/scsi_transport_iscsi.h>
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi.h>
+#include "be_main.h"
+#include "be_iscsi.h"
+#include "be_mgmt.h"
+#include "be_cmds.h"
+
+static unsigned int be_iopoll_budget = 10;
+static unsigned int be_max_phys_size = 64;
+static unsigned int enable_msix = 1;
+
+MODULE_DESCRIPTION(DRV_DESC " " BUILD_STR);
+MODULE_VERSION(BUILD_STR);
+MODULE_AUTHOR("Emulex Corporation");
+MODULE_LICENSE("GPL");
+module_param(be_iopoll_budget, int, 0);
+module_param(enable_msix, int, 0);
+module_param(be_max_phys_size, uint, S_IRUGO);
+MODULE_PARM_DESC(be_max_phys_size,
+ "Maximum Size (In Kilobytes) of physically contiguous "
+ "memory that can be allocated. Range is 16 - 128");
+
+#define beiscsi_disp_param(_name)\
+static ssize_t \
+beiscsi_##_name##_disp(struct device *dev,\
+ struct device_attribute *attrib, char *buf) \
+{ \
+ struct Scsi_Host *shost = class_to_shost(dev);\
+ struct beiscsi_hba *phba = iscsi_host_priv(shost); \
+ return snprintf(buf, PAGE_SIZE, "%d\n",\
+ phba->attr_##_name);\
+}
+
+#define beiscsi_change_param(_name, _minval, _maxval, _defaval)\
+static int \
+beiscsi_##_name##_change(struct beiscsi_hba *phba, uint32_t val)\
+{\
+ if (val >= _minval && val <= _maxval) {\
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,\
+ "BA_%d : beiscsi_"#_name" updated "\
+ "from 0x%x ==> 0x%x\n",\
+ phba->attr_##_name, val); \
+ phba->attr_##_name = val;\
+ return 0;\
+ } \
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, \
+ "BA_%d beiscsi_"#_name" attribute "\
+ "cannot be updated to 0x%x, "\
+ "range allowed is ["#_minval" - "#_maxval"]\n", val);\
+ return -EINVAL;\
+}
+
+#define beiscsi_store_param(_name) \
+static ssize_t \
+beiscsi_##_name##_store(struct device *dev,\
+ struct device_attribute *attr, const char *buf,\
+ size_t count) \
+{ \
+ struct Scsi_Host *shost = class_to_shost(dev);\
+ struct beiscsi_hba *phba = iscsi_host_priv(shost);\
+ uint32_t param_val = 0;\
+ if (!isdigit(buf[0]))\
+ return -EINVAL;\
+ if (sscanf(buf, "%i", &param_val) != 1)\
+ return -EINVAL;\
+ if (beiscsi_##_name##_change(phba, param_val) == 0) \
+ return strlen(buf);\
+ else \
+ return -EINVAL;\
+}
+
+#define beiscsi_init_param(_name, _minval, _maxval, _defval) \
+static int \
+beiscsi_##_name##_init(struct beiscsi_hba *phba, uint32_t val) \
+{ \
+ if (val >= _minval && val <= _maxval) {\
+ phba->attr_##_name = val;\
+ return 0;\
+ } \
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,\
+ "BA_%d beiscsi_"#_name" attribute " \
+ "cannot be updated to 0x%x, "\
+ "range allowed is ["#_minval" - "#_maxval"]\n", val);\
+ phba->attr_##_name = _defval;\
+ return -EINVAL;\
+}
+
+#define BEISCSI_RW_ATTR(_name, _minval, _maxval, _defval, _descp) \
+static uint beiscsi_##_name = _defval;\
+module_param(beiscsi_##_name, uint, S_IRUGO);\
+MODULE_PARM_DESC(beiscsi_##_name, _descp);\
+beiscsi_disp_param(_name)\
+beiscsi_change_param(_name, _minval, _maxval, _defval)\
+beiscsi_store_param(_name)\
+beiscsi_init_param(_name, _minval, _maxval, _defval)\
+DEVICE_ATTR(beiscsi_##_name, S_IRUGO | S_IWUSR,\
+ beiscsi_##_name##_disp, beiscsi_##_name##_store)
+
+/*
+ * When new log level added update MAX allowed value for log_enable
+ */
+BEISCSI_RW_ATTR(log_enable, 0x00,
+ 0xFF, 0x00, "Enable logging Bit Mask\n"
+ "\t\t\t\tInitialization Events : 0x01\n"
+ "\t\t\t\tMailbox Events : 0x02\n"
+ "\t\t\t\tMiscellaneous Events : 0x04\n"
+ "\t\t\t\tError Handling : 0x08\n"
+ "\t\t\t\tIO Path Events : 0x10\n"
+ "\t\t\t\tConfiguration Path : 0x20\n"
+ "\t\t\t\tiSCSI Protocol : 0x40\n");
+
+DEVICE_ATTR(beiscsi_drvr_ver, S_IRUGO, beiscsi_drvr_ver_disp, NULL);
+DEVICE_ATTR(beiscsi_adapter_family, S_IRUGO, beiscsi_adap_family_disp, NULL);
+DEVICE_ATTR(beiscsi_fw_ver, S_IRUGO, beiscsi_fw_ver_disp, NULL);
+DEVICE_ATTR(beiscsi_phys_port, S_IRUGO, beiscsi_phys_port_disp, NULL);
+DEVICE_ATTR(beiscsi_active_session_count, S_IRUGO,
+ beiscsi_active_session_disp, NULL);
+DEVICE_ATTR(beiscsi_free_session_count, S_IRUGO,
+ beiscsi_free_session_disp, NULL);
+
+static struct attribute *beiscsi_attrs[] = {
+ &dev_attr_beiscsi_log_enable.attr,
+ &dev_attr_beiscsi_drvr_ver.attr,
+ &dev_attr_beiscsi_adapter_family.attr,
+ &dev_attr_beiscsi_fw_ver.attr,
+ &dev_attr_beiscsi_active_session_count.attr,
+ &dev_attr_beiscsi_free_session_count.attr,
+ &dev_attr_beiscsi_phys_port.attr,
+ NULL,
+};
+
+ATTRIBUTE_GROUPS(beiscsi);
+
+static char const *cqe_desc[] = {
+ "RESERVED_DESC",
+ "SOL_CMD_COMPLETE",
+ "SOL_CMD_KILLED_DATA_DIGEST_ERR",
+ "CXN_KILLED_PDU_SIZE_EXCEEDS_DSL",
+ "CXN_KILLED_BURST_LEN_MISMATCH",
+ "CXN_KILLED_AHS_RCVD",
+ "CXN_KILLED_HDR_DIGEST_ERR",
+ "CXN_KILLED_UNKNOWN_HDR",
+ "CXN_KILLED_STALE_ITT_TTT_RCVD",
+ "CXN_KILLED_INVALID_ITT_TTT_RCVD",
+ "CXN_KILLED_RST_RCVD",
+ "CXN_KILLED_TIMED_OUT",
+ "CXN_KILLED_RST_SENT",
+ "CXN_KILLED_FIN_RCVD",
+ "CXN_KILLED_BAD_UNSOL_PDU_RCVD",
+ "CXN_KILLED_BAD_WRB_INDEX_ERROR",
+ "CXN_KILLED_OVER_RUN_RESIDUAL",
+ "CXN_KILLED_UNDER_RUN_RESIDUAL",
+ "CMD_KILLED_INVALID_STATSN_RCVD",
+ "CMD_KILLED_INVALID_R2T_RCVD",
+ "CMD_CXN_KILLED_LUN_INVALID",
+ "CMD_CXN_KILLED_ICD_INVALID",
+ "CMD_CXN_KILLED_ITT_INVALID",
+ "CMD_CXN_KILLED_SEQ_OUTOFORDER",
+ "CMD_CXN_KILLED_INVALID_DATASN_RCVD",
+ "CXN_INVALIDATE_NOTIFY",
+ "CXN_INVALIDATE_INDEX_NOTIFY",
+ "CMD_INVALIDATED_NOTIFY",
+ "UNSOL_HDR_NOTIFY",
+ "UNSOL_DATA_NOTIFY",
+ "UNSOL_DATA_DIGEST_ERROR_NOTIFY",
+ "DRIVERMSG_NOTIFY",
+ "CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN",
+ "SOL_CMD_KILLED_DIF_ERR",
+ "CXN_KILLED_SYN_RCVD",
+ "CXN_KILLED_IMM_DATA_RCVD"
+};
+
+static int beiscsi_eh_abort(struct scsi_cmnd *sc)
+{
+ struct iscsi_task *abrt_task = iscsi_cmd(sc)->task;
+ struct iscsi_cls_session *cls_session;
+ struct beiscsi_io_task *abrt_io_task;
+ struct beiscsi_conn *beiscsi_conn;
+ struct iscsi_session *session;
+ struct invldt_cmd_tbl inv_tbl;
+ struct beiscsi_hba *phba;
+ struct iscsi_conn *conn;
+ int rc;
+
+ cls_session = starget_to_session(scsi_target(sc->device));
+ session = cls_session->dd_data;
+
+completion_check:
+ /* check if we raced, task just got cleaned up under us */
+ spin_lock_bh(&session->back_lock);
+ if (!abrt_task || !abrt_task->sc) {
+ spin_unlock_bh(&session->back_lock);
+ return SUCCESS;
+ }
+ /* get a task ref till FW processes the req for the ICD used */
+ if (!iscsi_get_task(abrt_task)) {
+ spin_unlock(&session->back_lock);
+ /* We are just about to call iscsi_free_task so wait for it. */
+ udelay(5);
+ goto completion_check;
+ }
+
+ abrt_io_task = abrt_task->dd_data;
+ conn = abrt_task->conn;
+ beiscsi_conn = conn->dd_data;
+ phba = beiscsi_conn->phba;
+ /* mark WRB invalid which have been not processed by FW yet */
+ if (is_chip_be2_be3r(phba)) {
+ AMAP_SET_BITS(struct amap_iscsi_wrb, invld,
+ abrt_io_task->pwrb_handle->pwrb, 1);
+ } else {
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, invld,
+ abrt_io_task->pwrb_handle->pwrb, 1);
+ }
+ inv_tbl.cid = beiscsi_conn->beiscsi_conn_cid;
+ inv_tbl.icd = abrt_io_task->psgl_handle->sgl_index;
+ spin_unlock_bh(&session->back_lock);
+
+ rc = beiscsi_mgmt_invalidate_icds(phba, &inv_tbl, 1);
+ iscsi_put_task(abrt_task);
+ if (rc) {
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_EH,
+ "BM_%d : sc %p invalidation failed %d\n",
+ sc, rc);
+ return FAILED;
+ }
+
+ return iscsi_eh_abort(sc);
+}
+
+static int beiscsi_eh_device_reset(struct scsi_cmnd *sc)
+{
+ struct beiscsi_invldt_cmd_tbl {
+ struct invldt_cmd_tbl tbl[BE_INVLDT_CMD_TBL_SZ];
+ struct iscsi_task *task[BE_INVLDT_CMD_TBL_SZ];
+ } *inv_tbl;
+ struct iscsi_cls_session *cls_session;
+ struct beiscsi_conn *beiscsi_conn;
+ struct beiscsi_io_task *io_task;
+ struct iscsi_session *session;
+ struct beiscsi_hba *phba;
+ struct iscsi_conn *conn;
+ struct iscsi_task *task;
+ unsigned int i, nents;
+ int rc, more = 0;
+
+ cls_session = starget_to_session(scsi_target(sc->device));
+ session = cls_session->dd_data;
+
+ spin_lock_bh(&session->frwd_lock);
+ if (!session->leadconn || session->state != ISCSI_STATE_LOGGED_IN) {
+ spin_unlock_bh(&session->frwd_lock);
+ return FAILED;
+ }
+
+ conn = session->leadconn;
+ beiscsi_conn = conn->dd_data;
+ phba = beiscsi_conn->phba;
+
+ inv_tbl = kzalloc(sizeof(*inv_tbl), GFP_ATOMIC);
+ if (!inv_tbl) {
+ spin_unlock_bh(&session->frwd_lock);
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_EH,
+ "BM_%d : invldt_cmd_tbl alloc failed\n");
+ return FAILED;
+ }
+ nents = 0;
+ /* take back_lock to prevent task from getting cleaned up under us */
+ spin_lock(&session->back_lock);
+ for (i = 0; i < conn->session->cmds_max; i++) {
+ task = conn->session->cmds[i];
+ if (!task->sc)
+ continue;
+
+ if (sc->device->lun != task->sc->device->lun)
+ continue;
+ /**
+ * Can't fit in more cmds? Normally this won't happen b'coz
+ * BEISCSI_CMD_PER_LUN is same as BE_INVLDT_CMD_TBL_SZ.
+ */
+ if (nents == BE_INVLDT_CMD_TBL_SZ) {
+ more = 1;
+ break;
+ }
+
+ /* get a task ref till FW processes the req for the ICD used */
+ if (!iscsi_get_task(task)) {
+ /*
+ * The task has completed in the driver and is
+ * completing in libiscsi. Just ignore it here. When we
+ * call iscsi_eh_device_reset, it will wait for us.
+ */
+ continue;
+ }
+
+ io_task = task->dd_data;
+ /* mark WRB invalid which have been not processed by FW yet */
+ if (is_chip_be2_be3r(phba)) {
+ AMAP_SET_BITS(struct amap_iscsi_wrb, invld,
+ io_task->pwrb_handle->pwrb, 1);
+ } else {
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, invld,
+ io_task->pwrb_handle->pwrb, 1);
+ }
+
+ inv_tbl->tbl[nents].cid = beiscsi_conn->beiscsi_conn_cid;
+ inv_tbl->tbl[nents].icd = io_task->psgl_handle->sgl_index;
+ inv_tbl->task[nents] = task;
+ nents++;
+ }
+ spin_unlock(&session->back_lock);
+ spin_unlock_bh(&session->frwd_lock);
+
+ rc = SUCCESS;
+ if (!nents)
+ goto end_reset;
+
+ if (more) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_EH,
+ "BM_%d : number of cmds exceeds size of invalidation table\n");
+ rc = FAILED;
+ goto end_reset;
+ }
+
+ if (beiscsi_mgmt_invalidate_icds(phba, &inv_tbl->tbl[0], nents)) {
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_EH,
+ "BM_%d : cid %u scmds invalidation failed\n",
+ beiscsi_conn->beiscsi_conn_cid);
+ rc = FAILED;
+ }
+
+end_reset:
+ for (i = 0; i < nents; i++)
+ iscsi_put_task(inv_tbl->task[i]);
+ kfree(inv_tbl);
+
+ if (rc == SUCCESS)
+ rc = iscsi_eh_device_reset(sc);
+ return rc;
+}
+
+/*------------------- PCI Driver operations and data ----------------- */
+static const struct pci_device_id beiscsi_pci_id_table[] = {
+ { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
+ { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
+ { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
+ { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
+ { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID3) },
+ { PCI_DEVICE(ELX_VENDOR_ID, OC_SKH_ID1) },
+ { 0 }
+};
+MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table);
+
+
+static struct scsi_host_template beiscsi_sht = {
+ .module = THIS_MODULE,
+ .name = "Emulex 10Gbe open-iscsi Initiator Driver",
+ .proc_name = DRV_NAME,
+ .queuecommand = iscsi_queuecommand,
+ .change_queue_depth = scsi_change_queue_depth,
+ .target_alloc = iscsi_target_alloc,
+ .eh_timed_out = iscsi_eh_cmd_timed_out,
+ .eh_abort_handler = beiscsi_eh_abort,
+ .eh_device_reset_handler = beiscsi_eh_device_reset,
+ .eh_target_reset_handler = iscsi_eh_session_reset,
+ .shost_groups = beiscsi_groups,
+ .sg_tablesize = BEISCSI_SGLIST_ELEMENTS,
+ .can_queue = BE2_IO_DEPTH,
+ .this_id = -1,
+ .max_sectors = BEISCSI_MAX_SECTORS,
+ .max_segment_size = 65536,
+ .cmd_per_lun = BEISCSI_CMD_PER_LUN,
+ .vendor_id = SCSI_NL_VID_TYPE_PCI | BE_VENDOR_ID,
+ .track_queue_depth = 1,
+ .cmd_size = sizeof(struct iscsi_cmd),
+};
+
+static struct scsi_transport_template *beiscsi_scsi_transport;
+
+static struct beiscsi_hba *beiscsi_hba_alloc(struct pci_dev *pcidev)
+{
+ struct beiscsi_hba *phba;
+ struct Scsi_Host *shost;
+
+ shost = iscsi_host_alloc(&beiscsi_sht, sizeof(*phba), 0);
+ if (!shost) {
+ dev_err(&pcidev->dev,
+ "beiscsi_hba_alloc - iscsi_host_alloc failed\n");
+ return NULL;
+ }
+ shost->max_id = BE2_MAX_SESSIONS - 1;
+ shost->max_channel = 0;
+ shost->max_cmd_len = BEISCSI_MAX_CMD_LEN;
+ shost->max_lun = BEISCSI_NUM_MAX_LUN;
+ shost->transportt = beiscsi_scsi_transport;
+ phba = iscsi_host_priv(shost);
+ memset(phba, 0, sizeof(*phba));
+ phba->shost = shost;
+ phba->pcidev = pci_dev_get(pcidev);
+ pci_set_drvdata(pcidev, phba);
+ phba->interface_handle = 0xFFFFFFFF;
+
+ return phba;
+}
+
+static void beiscsi_unmap_pci_function(struct beiscsi_hba *phba)
+{
+ if (phba->csr_va) {
+ iounmap(phba->csr_va);
+ phba->csr_va = NULL;
+ }
+ if (phba->db_va) {
+ iounmap(phba->db_va);
+ phba->db_va = NULL;
+ }
+ if (phba->pci_va) {
+ iounmap(phba->pci_va);
+ phba->pci_va = NULL;
+ }
+}
+
+static int beiscsi_map_pci_bars(struct beiscsi_hba *phba,
+ struct pci_dev *pcidev)
+{
+ u8 __iomem *addr;
+ int pcicfg_reg;
+
+ addr = ioremap(pci_resource_start(pcidev, 2),
+ pci_resource_len(pcidev, 2));
+ if (addr == NULL)
+ return -ENOMEM;
+ phba->ctrl.csr = addr;
+ phba->csr_va = addr;
+
+ addr = ioremap(pci_resource_start(pcidev, 4), 128 * 1024);
+ if (addr == NULL)
+ goto pci_map_err;
+ phba->ctrl.db = addr;
+ phba->db_va = addr;
+
+ if (phba->generation == BE_GEN2)
+ pcicfg_reg = 1;
+ else
+ pcicfg_reg = 0;
+
+ addr = ioremap(pci_resource_start(pcidev, pcicfg_reg),
+ pci_resource_len(pcidev, pcicfg_reg));
+
+ if (addr == NULL)
+ goto pci_map_err;
+ phba->ctrl.pcicfg = addr;
+ phba->pci_va = addr;
+ return 0;
+
+pci_map_err:
+ beiscsi_unmap_pci_function(phba);
+ return -ENOMEM;
+}
+
+static int beiscsi_enable_pci(struct pci_dev *pcidev)
+{
+ int ret;
+
+ ret = pci_enable_device(pcidev);
+ if (ret) {
+ dev_err(&pcidev->dev,
+ "beiscsi_enable_pci - enable device failed\n");
+ return ret;
+ }
+
+ ret = pci_request_regions(pcidev, DRV_NAME);
+ if (ret) {
+ dev_err(&pcidev->dev,
+ "beiscsi_enable_pci - request region failed\n");
+ goto pci_dev_disable;
+ }
+
+ pci_set_master(pcidev);
+ ret = dma_set_mask_and_coherent(&pcidev->dev, DMA_BIT_MASK(64));
+ if (ret) {
+ ret = dma_set_mask_and_coherent(&pcidev->dev, DMA_BIT_MASK(32));
+ if (ret) {
+ dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n");
+ goto pci_region_release;
+ }
+ }
+ return 0;
+
+pci_region_release:
+ pci_release_regions(pcidev);
+pci_dev_disable:
+ pci_disable_device(pcidev);
+
+ return ret;
+}
+
+static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_dma_mem *mbox_mem_alloc = &ctrl->mbox_mem_alloced;
+ struct be_dma_mem *mbox_mem_align = &ctrl->mbox_mem;
+ int status = 0;
+
+ ctrl->pdev = pdev;
+ status = beiscsi_map_pci_bars(phba, pdev);
+ if (status)
+ return status;
+ mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
+ mbox_mem_alloc->va = dma_alloc_coherent(&pdev->dev,
+ mbox_mem_alloc->size, &mbox_mem_alloc->dma, GFP_KERNEL);
+ if (!mbox_mem_alloc->va) {
+ beiscsi_unmap_pci_function(phba);
+ return -ENOMEM;
+ }
+
+ mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
+ mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
+ mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
+ memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
+ mutex_init(&ctrl->mbox_lock);
+ spin_lock_init(&phba->ctrl.mcc_lock);
+
+ return status;
+}
+
+/**
+ * beiscsi_get_params()- Set the config paramters
+ * @phba: ptr device priv structure
+ **/
+static void beiscsi_get_params(struct beiscsi_hba *phba)
+{
+ uint32_t total_cid_count = 0;
+ uint32_t total_icd_count = 0;
+ uint8_t ulp_num = 0;
+
+ total_cid_count = BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP0) +
+ BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP1);
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+ uint32_t align_mask = 0;
+ uint32_t icd_post_per_page = 0;
+ uint32_t icd_count_unavailable = 0;
+ uint32_t icd_start = 0, icd_count = 0;
+ uint32_t icd_start_align = 0, icd_count_align = 0;
+
+ if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
+ icd_start = phba->fw_config.iscsi_icd_start[ulp_num];
+ icd_count = phba->fw_config.iscsi_icd_count[ulp_num];
+
+ /* Get ICD count that can be posted on each page */
+ icd_post_per_page = (PAGE_SIZE / (BE2_SGE *
+ sizeof(struct iscsi_sge)));
+ align_mask = (icd_post_per_page - 1);
+
+ /* Check if icd_start is aligned ICD per page posting */
+ if (icd_start % icd_post_per_page) {
+ icd_start_align = ((icd_start +
+ icd_post_per_page) &
+ ~(align_mask));
+ phba->fw_config.
+ iscsi_icd_start[ulp_num] =
+ icd_start_align;
+ }
+
+ icd_count_align = (icd_count & ~align_mask);
+
+ /* ICD discarded in the process of alignment */
+ if (icd_start_align)
+ icd_count_unavailable = ((icd_start_align -
+ icd_start) +
+ (icd_count -
+ icd_count_align));
+
+ /* Updated ICD count available */
+ phba->fw_config.iscsi_icd_count[ulp_num] = (icd_count -
+ icd_count_unavailable);
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : Aligned ICD values\n"
+ "\t ICD Start : %d\n"
+ "\t ICD Count : %d\n"
+ "\t ICD Discarded : %d\n",
+ phba->fw_config.
+ iscsi_icd_start[ulp_num],
+ phba->fw_config.
+ iscsi_icd_count[ulp_num],
+ icd_count_unavailable);
+ break;
+ }
+ }
+
+ total_icd_count = phba->fw_config.iscsi_icd_count[ulp_num];
+ phba->params.ios_per_ctrl = (total_icd_count -
+ (total_cid_count +
+ BE2_TMFS + BE2_NOPOUT_REQ));
+ phba->params.cxns_per_ctrl = total_cid_count;
+ phba->params.icds_per_ctrl = total_icd_count;
+ phba->params.num_sge_per_io = BE2_SGE;
+ phba->params.defpdu_hdr_sz = BE2_DEFPDU_HDR_SZ;
+ phba->params.defpdu_data_sz = BE2_DEFPDU_DATA_SZ;
+ phba->params.num_eq_entries = 1024;
+ phba->params.num_cq_entries = 1024;
+ phba->params.wrbs_per_cxn = 256;
+}
+
+static void hwi_ring_eq_db(struct beiscsi_hba *phba,
+ unsigned int id, unsigned int clr_interrupt,
+ unsigned int num_processed,
+ unsigned char rearm, unsigned char event)
+{
+ u32 val = 0;
+
+ if (rearm)
+ val |= 1 << DB_EQ_REARM_SHIFT;
+ if (clr_interrupt)
+ val |= 1 << DB_EQ_CLR_SHIFT;
+ if (event)
+ val |= 1 << DB_EQ_EVNT_SHIFT;
+
+ val |= num_processed << DB_EQ_NUM_POPPED_SHIFT;
+ /* Setting lower order EQ_ID Bits */
+ val |= (id & DB_EQ_RING_ID_LOW_MASK);
+
+ /* Setting Higher order EQ_ID Bits */
+ val |= (((id >> DB_EQ_HIGH_FEILD_SHIFT) &
+ DB_EQ_RING_ID_HIGH_MASK)
+ << DB_EQ_HIGH_SET_SHIFT);
+
+ iowrite32(val, phba->db_va + DB_EQ_OFFSET);
+}
+
+/**
+ * be_isr_mcc - The isr routine of the driver.
+ * @irq: Not used
+ * @dev_id: Pointer to host adapter structure
+ */
+static irqreturn_t be_isr_mcc(int irq, void *dev_id)
+{
+ struct beiscsi_hba *phba;
+ struct be_eq_entry *eqe;
+ struct be_queue_info *eq;
+ struct be_queue_info *mcc;
+ unsigned int mcc_events;
+ struct be_eq_obj *pbe_eq;
+
+ pbe_eq = dev_id;
+ eq = &pbe_eq->q;
+ phba = pbe_eq->phba;
+ mcc = &phba->ctrl.mcc_obj.cq;
+ eqe = queue_tail_node(eq);
+
+ mcc_events = 0;
+ while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
+ & EQE_VALID_MASK) {
+ if (((eqe->dw[offsetof(struct amap_eq_entry,
+ resource_id) / 32] &
+ EQE_RESID_MASK) >> 16) == mcc->id) {
+ mcc_events++;
+ }
+ AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
+ queue_tail_inc(eq);
+ eqe = queue_tail_node(eq);
+ }
+
+ if (mcc_events) {
+ queue_work(phba->wq, &pbe_eq->mcc_work);
+ hwi_ring_eq_db(phba, eq->id, 1, mcc_events, 1, 1);
+ }
+ return IRQ_HANDLED;
+}
+
+/**
+ * be_isr_msix - The isr routine of the driver.
+ * @irq: Not used
+ * @dev_id: Pointer to host adapter structure
+ */
+static irqreturn_t be_isr_msix(int irq, void *dev_id)
+{
+ struct beiscsi_hba *phba;
+ struct be_queue_info *eq;
+ struct be_eq_obj *pbe_eq;
+
+ pbe_eq = dev_id;
+ eq = &pbe_eq->q;
+
+ phba = pbe_eq->phba;
+ /* disable interrupt till iopoll completes */
+ hwi_ring_eq_db(phba, eq->id, 1, 0, 0, 1);
+ irq_poll_sched(&pbe_eq->iopoll);
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * be_isr - The isr routine of the driver.
+ * @irq: Not used
+ * @dev_id: Pointer to host adapter structure
+ */
+static irqreturn_t be_isr(int irq, void *dev_id)
+{
+ struct beiscsi_hba *phba;
+ struct hwi_controller *phwi_ctrlr;
+ struct hwi_context_memory *phwi_context;
+ struct be_eq_entry *eqe;
+ struct be_queue_info *eq;
+ struct be_queue_info *mcc;
+ unsigned int mcc_events, io_events;
+ struct be_ctrl_info *ctrl;
+ struct be_eq_obj *pbe_eq;
+ int isr, rearm;
+
+ phba = dev_id;
+ ctrl = &phba->ctrl;
+ isr = ioread32(ctrl->csr + CEV_ISR0_OFFSET +
+ (PCI_FUNC(ctrl->pdev->devfn) * CEV_ISR_SIZE));
+ if (!isr)
+ return IRQ_NONE;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+ pbe_eq = &phwi_context->be_eq[0];
+
+ eq = &phwi_context->be_eq[0].q;
+ mcc = &phba->ctrl.mcc_obj.cq;
+ eqe = queue_tail_node(eq);
+
+ io_events = 0;
+ mcc_events = 0;
+ while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
+ & EQE_VALID_MASK) {
+ if (((eqe->dw[offsetof(struct amap_eq_entry,
+ resource_id) / 32] & EQE_RESID_MASK) >> 16) == mcc->id)
+ mcc_events++;
+ else
+ io_events++;
+ AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
+ queue_tail_inc(eq);
+ eqe = queue_tail_node(eq);
+ }
+ if (!io_events && !mcc_events)
+ return IRQ_NONE;
+
+ /* no need to rearm if interrupt is only for IOs */
+ rearm = 0;
+ if (mcc_events) {
+ queue_work(phba->wq, &pbe_eq->mcc_work);
+ /* rearm for MCCQ */
+ rearm = 1;
+ }
+ if (io_events)
+ irq_poll_sched(&pbe_eq->iopoll);
+ hwi_ring_eq_db(phba, eq->id, 0, (io_events + mcc_events), rearm, 1);
+ return IRQ_HANDLED;
+}
+
+static void beiscsi_free_irqs(struct beiscsi_hba *phba)
+{
+ struct hwi_context_memory *phwi_context;
+ int i;
+
+ if (!phba->pcidev->msix_enabled) {
+ if (phba->pcidev->irq)
+ free_irq(phba->pcidev->irq, phba);
+ return;
+ }
+
+ phwi_context = phba->phwi_ctrlr->phwi_ctxt;
+ for (i = 0; i <= phba->num_cpus; i++) {
+ free_irq(pci_irq_vector(phba->pcidev, i),
+ &phwi_context->be_eq[i]);
+ kfree(phba->msi_name[i]);
+ }
+}
+
+static int beiscsi_init_irqs(struct beiscsi_hba *phba)
+{
+ struct pci_dev *pcidev = phba->pcidev;
+ struct hwi_controller *phwi_ctrlr;
+ struct hwi_context_memory *phwi_context;
+ int ret, i, j;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+
+ if (pcidev->msix_enabled) {
+ for (i = 0; i < phba->num_cpus; i++) {
+ phba->msi_name[i] = kasprintf(GFP_KERNEL,
+ "beiscsi_%02x_%02x",
+ phba->shost->host_no, i);
+ if (!phba->msi_name[i]) {
+ ret = -ENOMEM;
+ goto free_msix_irqs;
+ }
+
+ ret = request_irq(pci_irq_vector(pcidev, i),
+ be_isr_msix, 0, phba->msi_name[i],
+ &phwi_context->be_eq[i]);
+ if (ret) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : %s-Failed to register msix for i = %d\n",
+ __func__, i);
+ kfree(phba->msi_name[i]);
+ goto free_msix_irqs;
+ }
+ }
+ phba->msi_name[i] = kasprintf(GFP_KERNEL, "beiscsi_mcc_%02x",
+ phba->shost->host_no);
+ if (!phba->msi_name[i]) {
+ ret = -ENOMEM;
+ goto free_msix_irqs;
+ }
+ ret = request_irq(pci_irq_vector(pcidev, i), be_isr_mcc, 0,
+ phba->msi_name[i], &phwi_context->be_eq[i]);
+ if (ret) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : %s-Failed to register beiscsi_msix_mcc\n",
+ __func__);
+ kfree(phba->msi_name[i]);
+ goto free_msix_irqs;
+ }
+
+ } else {
+ ret = request_irq(pcidev->irq, be_isr, IRQF_SHARED,
+ "beiscsi", phba);
+ if (ret) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : %s-Failed to register irq\n",
+ __func__);
+ return ret;
+ }
+ }
+ return 0;
+free_msix_irqs:
+ for (j = i - 1; j >= 0; j--) {
+ free_irq(pci_irq_vector(pcidev, i), &phwi_context->be_eq[j]);
+ kfree(phba->msi_name[j]);
+ }
+ return ret;
+}
+
+void hwi_ring_cq_db(struct beiscsi_hba *phba,
+ unsigned int id, unsigned int num_processed,
+ unsigned char rearm)
+{
+ u32 val = 0;
+
+ if (rearm)
+ val |= 1 << DB_CQ_REARM_SHIFT;
+
+ val |= num_processed << DB_CQ_NUM_POPPED_SHIFT;
+
+ /* Setting lower order CQ_ID Bits */
+ val |= (id & DB_CQ_RING_ID_LOW_MASK);
+
+ /* Setting Higher order CQ_ID Bits */
+ val |= (((id >> DB_CQ_HIGH_FEILD_SHIFT) &
+ DB_CQ_RING_ID_HIGH_MASK)
+ << DB_CQ_HIGH_SET_SHIFT);
+
+ iowrite32(val, phba->db_va + DB_CQ_OFFSET);
+}
+
+static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba)
+{
+ struct sgl_handle *psgl_handle;
+ unsigned long flags;
+
+ spin_lock_irqsave(&phba->io_sgl_lock, flags);
+ if (phba->io_sgl_hndl_avbl) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO,
+ "BM_%d : In alloc_io_sgl_handle,"
+ " io_sgl_alloc_index=%d\n",
+ phba->io_sgl_alloc_index);
+
+ psgl_handle = phba->io_sgl_hndl_base[phba->
+ io_sgl_alloc_index];
+ phba->io_sgl_hndl_base[phba->io_sgl_alloc_index] = NULL;
+ phba->io_sgl_hndl_avbl--;
+ if (phba->io_sgl_alloc_index == (phba->params.
+ ios_per_ctrl - 1))
+ phba->io_sgl_alloc_index = 0;
+ else
+ phba->io_sgl_alloc_index++;
+ } else
+ psgl_handle = NULL;
+ spin_unlock_irqrestore(&phba->io_sgl_lock, flags);
+ return psgl_handle;
+}
+
+static void
+free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&phba->io_sgl_lock, flags);
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO,
+ "BM_%d : In free_,io_sgl_free_index=%d\n",
+ phba->io_sgl_free_index);
+
+ if (phba->io_sgl_hndl_base[phba->io_sgl_free_index]) {
+ /*
+ * this can happen if clean_task is called on a task that
+ * failed in xmit_task or alloc_pdu.
+ */
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO,
+ "BM_%d : Double Free in IO SGL io_sgl_free_index=%d, value there=%p\n",
+ phba->io_sgl_free_index,
+ phba->io_sgl_hndl_base[phba->io_sgl_free_index]);
+ spin_unlock_irqrestore(&phba->io_sgl_lock, flags);
+ return;
+ }
+ phba->io_sgl_hndl_base[phba->io_sgl_free_index] = psgl_handle;
+ phba->io_sgl_hndl_avbl++;
+ if (phba->io_sgl_free_index == (phba->params.ios_per_ctrl - 1))
+ phba->io_sgl_free_index = 0;
+ else
+ phba->io_sgl_free_index++;
+ spin_unlock_irqrestore(&phba->io_sgl_lock, flags);
+}
+
+static inline struct wrb_handle *
+beiscsi_get_wrb_handle(struct hwi_wrb_context *pwrb_context,
+ unsigned int wrbs_per_cxn)
+{
+ struct wrb_handle *pwrb_handle;
+ unsigned long flags;
+
+ spin_lock_irqsave(&pwrb_context->wrb_lock, flags);
+ if (!pwrb_context->wrb_handles_available) {
+ spin_unlock_irqrestore(&pwrb_context->wrb_lock, flags);
+ return NULL;
+ }
+ pwrb_handle = pwrb_context->pwrb_handle_base[pwrb_context->alloc_index];
+ pwrb_context->wrb_handles_available--;
+ if (pwrb_context->alloc_index == (wrbs_per_cxn - 1))
+ pwrb_context->alloc_index = 0;
+ else
+ pwrb_context->alloc_index++;
+ spin_unlock_irqrestore(&pwrb_context->wrb_lock, flags);
+
+ if (pwrb_handle)
+ memset(pwrb_handle->pwrb, 0, sizeof(*pwrb_handle->pwrb));
+
+ return pwrb_handle;
+}
+
+/**
+ * alloc_wrb_handle - To allocate a wrb handle
+ * @phba: The hba pointer
+ * @cid: The cid to use for allocation
+ * @pcontext: ptr to ptr to wrb context
+ *
+ * This happens under session_lock until submission to chip
+ */
+struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid,
+ struct hwi_wrb_context **pcontext)
+{
+ struct hwi_wrb_context *pwrb_context;
+ struct hwi_controller *phwi_ctrlr;
+ uint16_t cri_index = BE_GET_CRI_FROM_CID(cid);
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
+ /* return the context address */
+ *pcontext = pwrb_context;
+ return beiscsi_get_wrb_handle(pwrb_context, phba->params.wrbs_per_cxn);
+}
+
+static inline void
+beiscsi_put_wrb_handle(struct hwi_wrb_context *pwrb_context,
+ struct wrb_handle *pwrb_handle,
+ unsigned int wrbs_per_cxn)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&pwrb_context->wrb_lock, flags);
+ pwrb_context->pwrb_handle_base[pwrb_context->free_index] = pwrb_handle;
+ pwrb_context->wrb_handles_available++;
+ if (pwrb_context->free_index == (wrbs_per_cxn - 1))
+ pwrb_context->free_index = 0;
+ else
+ pwrb_context->free_index++;
+ pwrb_handle->pio_handle = NULL;
+ spin_unlock_irqrestore(&pwrb_context->wrb_lock, flags);
+}
+
+/**
+ * free_wrb_handle - To free the wrb handle back to pool
+ * @phba: The hba pointer
+ * @pwrb_context: The context to free from
+ * @pwrb_handle: The wrb_handle to free
+ *
+ * This happens under session_lock until submission to chip
+ */
+static void
+free_wrb_handle(struct beiscsi_hba *phba, struct hwi_wrb_context *pwrb_context,
+ struct wrb_handle *pwrb_handle)
+{
+ beiscsi_put_wrb_handle(pwrb_context,
+ pwrb_handle,
+ phba->params.wrbs_per_cxn);
+ beiscsi_log(phba, KERN_INFO,
+ BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+ "BM_%d : FREE WRB: pwrb_handle=%p free_index=0x%x "
+ "wrb_handles_available=%d\n",
+ pwrb_handle, pwrb_context->free_index,
+ pwrb_context->wrb_handles_available);
+}
+
+static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba)
+{
+ struct sgl_handle *psgl_handle;
+ unsigned long flags;
+
+ spin_lock_irqsave(&phba->mgmt_sgl_lock, flags);
+ if (phba->eh_sgl_hndl_avbl) {
+ psgl_handle = phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index];
+ phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index] = NULL;
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BM_%d : mgmt_sgl_alloc_index=%d=0x%x\n",
+ phba->eh_sgl_alloc_index,
+ phba->eh_sgl_alloc_index);
+
+ phba->eh_sgl_hndl_avbl--;
+ if (phba->eh_sgl_alloc_index ==
+ (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl -
+ 1))
+ phba->eh_sgl_alloc_index = 0;
+ else
+ phba->eh_sgl_alloc_index++;
+ } else
+ psgl_handle = NULL;
+ spin_unlock_irqrestore(&phba->mgmt_sgl_lock, flags);
+ return psgl_handle;
+}
+
+void
+free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&phba->mgmt_sgl_lock, flags);
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BM_%d : In free_mgmt_sgl_handle,"
+ "eh_sgl_free_index=%d\n",
+ phba->eh_sgl_free_index);
+
+ if (phba->eh_sgl_hndl_base[phba->eh_sgl_free_index]) {
+ /*
+ * this can happen if clean_task is called on a task that
+ * failed in xmit_task or alloc_pdu.
+ */
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+ "BM_%d : Double Free in eh SGL ,"
+ "eh_sgl_free_index=%d\n",
+ phba->eh_sgl_free_index);
+ spin_unlock_irqrestore(&phba->mgmt_sgl_lock, flags);
+ return;
+ }
+ phba->eh_sgl_hndl_base[phba->eh_sgl_free_index] = psgl_handle;
+ phba->eh_sgl_hndl_avbl++;
+ if (phba->eh_sgl_free_index ==
+ (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 1))
+ phba->eh_sgl_free_index = 0;
+ else
+ phba->eh_sgl_free_index++;
+ spin_unlock_irqrestore(&phba->mgmt_sgl_lock, flags);
+}
+
+static void
+be_complete_io(struct beiscsi_conn *beiscsi_conn,
+ struct iscsi_task *task,
+ struct common_sol_cqe *csol_cqe)
+{
+ struct beiscsi_io_task *io_task = task->dd_data;
+ struct be_status_bhs *sts_bhs =
+ (struct be_status_bhs *)io_task->cmd_bhs;
+ struct iscsi_conn *conn = beiscsi_conn->conn;
+ unsigned char *sense;
+ u32 resid = 0, exp_cmdsn, max_cmdsn;
+ u8 rsp, status, flags;
+
+ exp_cmdsn = csol_cqe->exp_cmdsn;
+ max_cmdsn = (csol_cqe->exp_cmdsn +
+ csol_cqe->cmd_wnd - 1);
+ rsp = csol_cqe->i_resp;
+ status = csol_cqe->i_sts;
+ flags = csol_cqe->i_flags;
+ resid = csol_cqe->res_cnt;
+
+ if (!task->sc) {
+ if (io_task->scsi_cmnd) {
+ scsi_dma_unmap(io_task->scsi_cmnd);
+ io_task->scsi_cmnd = NULL;
+ }
+
+ return;
+ }
+ task->sc->result = (DID_OK << 16) | status;
+ if (rsp != ISCSI_STATUS_CMD_COMPLETED) {
+ task->sc->result = DID_ERROR << 16;
+ goto unmap;
+ }
+
+ /* bidi not initially supported */
+ if (flags & (ISCSI_FLAG_CMD_UNDERFLOW | ISCSI_FLAG_CMD_OVERFLOW)) {
+ if (!status && (flags & ISCSI_FLAG_CMD_OVERFLOW))
+ task->sc->result = DID_ERROR << 16;
+
+ if (flags & ISCSI_FLAG_CMD_UNDERFLOW) {
+ scsi_set_resid(task->sc, resid);
+ if (!status && (scsi_bufflen(task->sc) - resid <
+ task->sc->underflow))
+ task->sc->result = DID_ERROR << 16;
+ }
+ }
+
+ if (status == SAM_STAT_CHECK_CONDITION) {
+ u16 sense_len;
+ unsigned short *slen = (unsigned short *)sts_bhs->sense_info;
+
+ sense = sts_bhs->sense_info + sizeof(unsigned short);
+ sense_len = be16_to_cpu(*slen);
+ memcpy(task->sc->sense_buffer, sense,
+ min_t(u16, sense_len, SCSI_SENSE_BUFFERSIZE));
+ }
+
+ if (io_task->cmd_bhs->iscsi_hdr.flags & ISCSI_FLAG_CMD_READ)
+ conn->rxdata_octets += resid;
+unmap:
+ if (io_task->scsi_cmnd) {
+ scsi_dma_unmap(io_task->scsi_cmnd);
+ io_task->scsi_cmnd = NULL;
+ }
+ iscsi_complete_scsi_task(task, exp_cmdsn, max_cmdsn);
+}
+
+static void
+be_complete_logout(struct beiscsi_conn *beiscsi_conn,
+ struct iscsi_task *task,
+ struct common_sol_cqe *csol_cqe)
+{
+ struct iscsi_logout_rsp *hdr;
+ struct beiscsi_io_task *io_task = task->dd_data;
+ struct iscsi_conn *conn = beiscsi_conn->conn;
+
+ hdr = (struct iscsi_logout_rsp *)task->hdr;
+ hdr->opcode = ISCSI_OP_LOGOUT_RSP;
+ hdr->t2wait = 5;
+ hdr->t2retain = 0;
+ hdr->flags = csol_cqe->i_flags;
+ hdr->response = csol_cqe->i_resp;
+ hdr->exp_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn);
+ hdr->max_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn +
+ csol_cqe->cmd_wnd - 1);
+
+ hdr->dlength[0] = 0;
+ hdr->dlength[1] = 0;
+ hdr->dlength[2] = 0;
+ hdr->hlength = 0;
+ hdr->itt = io_task->libiscsi_itt;
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
+}
+
+static void
+be_complete_tmf(struct beiscsi_conn *beiscsi_conn,
+ struct iscsi_task *task,
+ struct common_sol_cqe *csol_cqe)
+{
+ struct iscsi_tm_rsp *hdr;
+ struct iscsi_conn *conn = beiscsi_conn->conn;
+ struct beiscsi_io_task *io_task = task->dd_data;
+
+ hdr = (struct iscsi_tm_rsp *)task->hdr;
+ hdr->opcode = ISCSI_OP_SCSI_TMFUNC_RSP;
+ hdr->flags = csol_cqe->i_flags;
+ hdr->response = csol_cqe->i_resp;
+ hdr->exp_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn);
+ hdr->max_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn +
+ csol_cqe->cmd_wnd - 1);
+
+ hdr->itt = io_task->libiscsi_itt;
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
+}
+
+static void
+hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn,
+ struct beiscsi_hba *phba, struct sol_cqe *psol)
+{
+ struct hwi_wrb_context *pwrb_context;
+ uint16_t wrb_index, cid, cri_index;
+ struct hwi_controller *phwi_ctrlr;
+ struct wrb_handle *pwrb_handle;
+ struct iscsi_session *session;
+ struct iscsi_task *task;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ if (is_chip_be2_be3r(phba)) {
+ wrb_index = AMAP_GET_BITS(struct amap_it_dmsg_cqe,
+ wrb_idx, psol);
+ cid = AMAP_GET_BITS(struct amap_it_dmsg_cqe,
+ cid, psol);
+ } else {
+ wrb_index = AMAP_GET_BITS(struct amap_it_dmsg_cqe_v2,
+ wrb_idx, psol);
+ cid = AMAP_GET_BITS(struct amap_it_dmsg_cqe_v2,
+ cid, psol);
+ }
+
+ cri_index = BE_GET_CRI_FROM_CID(cid);
+ pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
+ pwrb_handle = pwrb_context->pwrb_handle_basestd[wrb_index];
+ session = beiscsi_conn->conn->session;
+ spin_lock_bh(&session->back_lock);
+ task = pwrb_handle->pio_handle;
+ if (task)
+ __iscsi_put_task(task);
+ spin_unlock_bh(&session->back_lock);
+}
+
+static void
+be_complete_nopin_resp(struct beiscsi_conn *beiscsi_conn,
+ struct iscsi_task *task,
+ struct common_sol_cqe *csol_cqe)
+{
+ struct iscsi_nopin *hdr;
+ struct iscsi_conn *conn = beiscsi_conn->conn;
+ struct beiscsi_io_task *io_task = task->dd_data;
+
+ hdr = (struct iscsi_nopin *)task->hdr;
+ hdr->flags = csol_cqe->i_flags;
+ hdr->exp_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn);
+ hdr->max_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn +
+ csol_cqe->cmd_wnd - 1);
+
+ hdr->opcode = ISCSI_OP_NOOP_IN;
+ hdr->itt = io_task->libiscsi_itt;
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
+}
+
+static void adapter_get_sol_cqe(struct beiscsi_hba *phba,
+ struct sol_cqe *psol,
+ struct common_sol_cqe *csol_cqe)
+{
+ if (is_chip_be2_be3r(phba)) {
+ csol_cqe->exp_cmdsn = AMAP_GET_BITS(struct amap_sol_cqe,
+ i_exp_cmd_sn, psol);
+ csol_cqe->res_cnt = AMAP_GET_BITS(struct amap_sol_cqe,
+ i_res_cnt, psol);
+ csol_cqe->cmd_wnd = AMAP_GET_BITS(struct amap_sol_cqe,
+ i_cmd_wnd, psol);
+ csol_cqe->wrb_index = AMAP_GET_BITS(struct amap_sol_cqe,
+ wrb_index, psol);
+ csol_cqe->cid = AMAP_GET_BITS(struct amap_sol_cqe,
+ cid, psol);
+ csol_cqe->hw_sts = AMAP_GET_BITS(struct amap_sol_cqe,
+ hw_sts, psol);
+ csol_cqe->i_resp = AMAP_GET_BITS(struct amap_sol_cqe,
+ i_resp, psol);
+ csol_cqe->i_sts = AMAP_GET_BITS(struct amap_sol_cqe,
+ i_sts, psol);
+ csol_cqe->i_flags = AMAP_GET_BITS(struct amap_sol_cqe,
+ i_flags, psol);
+ } else {
+ csol_cqe->exp_cmdsn = AMAP_GET_BITS(struct amap_sol_cqe_v2,
+ i_exp_cmd_sn, psol);
+ csol_cqe->res_cnt = AMAP_GET_BITS(struct amap_sol_cqe_v2,
+ i_res_cnt, psol);
+ csol_cqe->wrb_index = AMAP_GET_BITS(struct amap_sol_cqe_v2,
+ wrb_index, psol);
+ csol_cqe->cid = AMAP_GET_BITS(struct amap_sol_cqe_v2,
+ cid, psol);
+ csol_cqe->hw_sts = AMAP_GET_BITS(struct amap_sol_cqe_v2,
+ hw_sts, psol);
+ csol_cqe->cmd_wnd = AMAP_GET_BITS(struct amap_sol_cqe_v2,
+ i_cmd_wnd, psol);
+ if (AMAP_GET_BITS(struct amap_sol_cqe_v2,
+ cmd_cmpl, psol))
+ csol_cqe->i_sts = AMAP_GET_BITS(struct amap_sol_cqe_v2,
+ i_sts, psol);
+ else
+ csol_cqe->i_resp = AMAP_GET_BITS(struct amap_sol_cqe_v2,
+ i_sts, psol);
+ if (AMAP_GET_BITS(struct amap_sol_cqe_v2,
+ u, psol))
+ csol_cqe->i_flags = ISCSI_FLAG_CMD_UNDERFLOW;
+
+ if (AMAP_GET_BITS(struct amap_sol_cqe_v2,
+ o, psol))
+ csol_cqe->i_flags |= ISCSI_FLAG_CMD_OVERFLOW;
+ }
+}
+
+
+static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn,
+ struct beiscsi_hba *phba, struct sol_cqe *psol)
+{
+ struct iscsi_conn *conn = beiscsi_conn->conn;
+ struct iscsi_session *session = conn->session;
+ struct common_sol_cqe csol_cqe = {0};
+ struct hwi_wrb_context *pwrb_context;
+ struct hwi_controller *phwi_ctrlr;
+ struct wrb_handle *pwrb_handle;
+ struct iscsi_task *task;
+ uint16_t cri_index = 0;
+ uint8_t type;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+
+ /* Copy the elements to a common structure */
+ adapter_get_sol_cqe(phba, psol, &csol_cqe);
+
+ cri_index = BE_GET_CRI_FROM_CID(csol_cqe.cid);
+ pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
+
+ pwrb_handle = pwrb_context->pwrb_handle_basestd[
+ csol_cqe.wrb_index];
+
+ spin_lock_bh(&session->back_lock);
+ task = pwrb_handle->pio_handle;
+ if (!task) {
+ spin_unlock_bh(&session->back_lock);
+ return;
+ }
+ type = ((struct beiscsi_io_task *)task->dd_data)->wrb_type;
+
+ switch (type) {
+ case HWH_TYPE_IO:
+ case HWH_TYPE_IO_RD:
+ if ((task->hdr->opcode & ISCSI_OPCODE_MASK) ==
+ ISCSI_OP_NOOP_OUT)
+ be_complete_nopin_resp(beiscsi_conn, task, &csol_cqe);
+ else
+ be_complete_io(beiscsi_conn, task, &csol_cqe);
+ break;
+
+ case HWH_TYPE_LOGOUT:
+ if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGOUT)
+ be_complete_logout(beiscsi_conn, task, &csol_cqe);
+ else
+ be_complete_tmf(beiscsi_conn, task, &csol_cqe);
+ break;
+
+ case HWH_TYPE_LOGIN:
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
+ "BM_%d :\t\t No HWH_TYPE_LOGIN Expected in"
+ " %s- Solicited path\n", __func__);
+ break;
+
+ case HWH_TYPE_NOP:
+ be_complete_nopin_resp(beiscsi_conn, task, &csol_cqe);
+ break;
+
+ default:
+ beiscsi_log(phba, KERN_WARNING,
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
+ "BM_%d : In %s, unknown type = %d "
+ "wrb_index 0x%x CID 0x%x\n", __func__, type,
+ csol_cqe.wrb_index,
+ csol_cqe.cid);
+ break;
+ }
+
+ spin_unlock_bh(&session->back_lock);
+}
+
+/*
+ * ASYNC PDUs include
+ * a. Unsolicited NOP-In (target initiated NOP-In)
+ * b. ASYNC Messages
+ * c. Reject PDU
+ * d. Login response
+ * These headers arrive unprocessed by the EP firmware.
+ * iSCSI layer processes them.
+ */
+static unsigned int
+beiscsi_complete_pdu(struct beiscsi_conn *beiscsi_conn,
+ struct pdu_base *phdr, void *pdata, unsigned int dlen)
+{
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
+ struct iscsi_conn *conn = beiscsi_conn->conn;
+ struct beiscsi_io_task *io_task;
+ struct iscsi_hdr *login_hdr;
+ struct iscsi_task *task;
+ u8 code;
+
+ code = AMAP_GET_BITS(struct amap_pdu_base, opcode, phdr);
+ switch (code) {
+ case ISCSI_OP_NOOP_IN:
+ pdata = NULL;
+ dlen = 0;
+ break;
+ case ISCSI_OP_ASYNC_EVENT:
+ break;
+ case ISCSI_OP_REJECT:
+ WARN_ON(!pdata);
+ WARN_ON(!(dlen == 48));
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
+ "BM_%d : In ISCSI_OP_REJECT\n");
+ break;
+ case ISCSI_OP_LOGIN_RSP:
+ case ISCSI_OP_TEXT_RSP:
+ task = conn->login_task;
+ io_task = task->dd_data;
+ login_hdr = (struct iscsi_hdr *)phdr;
+ login_hdr->itt = io_task->libiscsi_itt;
+ break;
+ default:
+ beiscsi_log(phba, KERN_WARNING,
+ BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+ "BM_%d : unrecognized async PDU opcode 0x%x\n",
+ code);
+ return 1;
+ }
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)phdr, pdata, dlen);
+ return 0;
+}
+
+static inline void
+beiscsi_hdl_put_handle(struct hd_async_context *pasync_ctx,
+ struct hd_async_handle *pasync_handle)
+{
+ pasync_handle->is_final = 0;
+ pasync_handle->buffer_len = 0;
+ pasync_handle->in_use = 0;
+ list_del_init(&pasync_handle->link);
+}
+
+static void
+beiscsi_hdl_purge_handles(struct beiscsi_hba *phba,
+ struct hd_async_context *pasync_ctx,
+ u16 cri)
+{
+ struct hd_async_handle *pasync_handle, *tmp_handle;
+ struct list_head *plist;
+
+ plist = &pasync_ctx->async_entry[cri].wq.list;
+ list_for_each_entry_safe(pasync_handle, tmp_handle, plist, link)
+ beiscsi_hdl_put_handle(pasync_ctx, pasync_handle);
+
+ INIT_LIST_HEAD(&pasync_ctx->async_entry[cri].wq.list);
+ pasync_ctx->async_entry[cri].wq.hdr_len = 0;
+ pasync_ctx->async_entry[cri].wq.bytes_received = 0;
+ pasync_ctx->async_entry[cri].wq.bytes_needed = 0;
+}
+
+static struct hd_async_handle *
+beiscsi_hdl_get_handle(struct beiscsi_conn *beiscsi_conn,
+ struct hd_async_context *pasync_ctx,
+ struct i_t_dpdu_cqe *pdpdu_cqe,
+ u8 *header)
+{
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
+ struct hd_async_handle *pasync_handle;
+ struct be_bus_address phys_addr;
+ u16 cid, code, ci, cri;
+ u8 final, error = 0;
+ u32 dpl;
+
+ cid = beiscsi_conn->beiscsi_conn_cid;
+ cri = BE_GET_ASYNC_CRI_FROM_CID(cid);
+ /**
+ * This function is invoked to get the right async_handle structure
+ * from a given DEF PDU CQ entry.
+ *
+ * - index in CQ entry gives the vertical index
+ * - address in CQ entry is the offset where the DMA last ended
+ * - final - no more notifications for this PDU
+ */
+ if (is_chip_be2_be3r(phba)) {
+ dpl = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe,
+ dpl, pdpdu_cqe);
+ ci = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe,
+ index, pdpdu_cqe);
+ final = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe,
+ final, pdpdu_cqe);
+ } else {
+ dpl = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe_v2,
+ dpl, pdpdu_cqe);
+ ci = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe_v2,
+ index, pdpdu_cqe);
+ final = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe_v2,
+ final, pdpdu_cqe);
+ }
+
+ /**
+ * DB addr Hi/Lo is same for BE and SKH.
+ * Subtract the dataplacementlength to get to the base.
+ */
+ phys_addr.u.a32.address_lo = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe,
+ db_addr_lo, pdpdu_cqe);
+ phys_addr.u.a32.address_lo -= dpl;
+ phys_addr.u.a32.address_hi = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe,
+ db_addr_hi, pdpdu_cqe);
+
+ code = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe, code, pdpdu_cqe);
+ switch (code) {
+ case UNSOL_HDR_NOTIFY:
+ pasync_handle = pasync_ctx->async_entry[ci].header;
+ *header = 1;
+ break;
+ case UNSOL_DATA_DIGEST_ERROR_NOTIFY:
+ error = 1;
+ fallthrough;
+ case UNSOL_DATA_NOTIFY:
+ pasync_handle = pasync_ctx->async_entry[ci].data;
+ break;
+ /* called only for above codes */
+ default:
+ return NULL;
+ }
+
+ if (pasync_handle->pa.u.a64.address != phys_addr.u.a64.address ||
+ pasync_handle->index != ci) {
+ /* driver bug - if ci does not match async handle index */
+ error = 1;
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_ISCSI,
+ "BM_%d : cid %u async PDU handle mismatch - addr in %cQE %llx at %u:addr in CQE %llx ci %u\n",
+ cid, pasync_handle->is_header ? 'H' : 'D',
+ pasync_handle->pa.u.a64.address,
+ pasync_handle->index,
+ phys_addr.u.a64.address, ci);
+ /* FW has stale address - attempt continuing by dropping */
+ }
+
+ /**
+ * DEF PDU header and data buffers with errors should be simply
+ * dropped as there are no consumers for it.
+ */
+ if (error) {
+ beiscsi_hdl_put_handle(pasync_ctx, pasync_handle);
+ return NULL;
+ }
+
+ if (pasync_handle->in_use || !list_empty(&pasync_handle->link)) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_ISCSI,
+ "BM_%d : cid %d async PDU handle in use - code %d ci %d addr %llx\n",
+ cid, code, ci, phys_addr.u.a64.address);
+ beiscsi_hdl_purge_handles(phba, pasync_ctx, cri);
+ }
+
+ list_del_init(&pasync_handle->link);
+ /**
+ * Each CID is associated with unique CRI.
+ * ASYNC_CRI_FROM_CID mapping and CRI_FROM_CID are totaly different.
+ **/
+ pasync_handle->cri = cri;
+ pasync_handle->is_final = final;
+ pasync_handle->buffer_len = dpl;
+ pasync_handle->in_use = 1;
+
+ return pasync_handle;
+}
+
+static unsigned int
+beiscsi_hdl_fwd_pdu(struct beiscsi_conn *beiscsi_conn,
+ struct hd_async_context *pasync_ctx,
+ u16 cri)
+{
+ struct iscsi_session *session = beiscsi_conn->conn->session;
+ struct hd_async_handle *pasync_handle, *plast_handle;
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
+ void *phdr = NULL, *pdata = NULL;
+ u32 dlen = 0, status = 0;
+ struct list_head *plist;
+
+ plist = &pasync_ctx->async_entry[cri].wq.list;
+ plast_handle = NULL;
+ list_for_each_entry(pasync_handle, plist, link) {
+ plast_handle = pasync_handle;
+ /* get the header, the first entry */
+ if (!phdr) {
+ phdr = pasync_handle->pbuffer;
+ continue;
+ }
+ /* use first buffer to collect all the data */
+ if (!pdata) {
+ pdata = pasync_handle->pbuffer;
+ dlen = pasync_handle->buffer_len;
+ continue;
+ }
+ if (!pasync_handle->buffer_len ||
+ (dlen + pasync_handle->buffer_len) >
+ pasync_ctx->async_data.buffer_size)
+ break;
+ memcpy(pdata + dlen, pasync_handle->pbuffer,
+ pasync_handle->buffer_len);
+ dlen += pasync_handle->buffer_len;
+ }
+
+ if (!plast_handle->is_final) {
+ /* last handle should have final PDU notification from FW */
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_ISCSI,
+ "BM_%d : cid %u %p fwd async PDU opcode %x with last handle missing - HL%u:DN%u:DR%u\n",
+ beiscsi_conn->beiscsi_conn_cid, plast_handle,
+ AMAP_GET_BITS(struct amap_pdu_base, opcode, phdr),
+ pasync_ctx->async_entry[cri].wq.hdr_len,
+ pasync_ctx->async_entry[cri].wq.bytes_needed,
+ pasync_ctx->async_entry[cri].wq.bytes_received);
+ }
+ spin_lock_bh(&session->back_lock);
+ status = beiscsi_complete_pdu(beiscsi_conn, phdr, pdata, dlen);
+ spin_unlock_bh(&session->back_lock);
+ beiscsi_hdl_purge_handles(phba, pasync_ctx, cri);
+ return status;
+}
+
+static unsigned int
+beiscsi_hdl_gather_pdu(struct beiscsi_conn *beiscsi_conn,
+ struct hd_async_context *pasync_ctx,
+ struct hd_async_handle *pasync_handle)
+{
+ unsigned int bytes_needed = 0, status = 0;
+ u16 cri = pasync_handle->cri;
+ struct cri_wait_queue *wq;
+ struct beiscsi_hba *phba;
+ struct pdu_base *ppdu;
+ char *err = "";
+
+ phba = beiscsi_conn->phba;
+ wq = &pasync_ctx->async_entry[cri].wq;
+ if (pasync_handle->is_header) {
+ /* check if PDU hdr is rcv'd when old hdr not completed */
+ if (wq->hdr_len) {
+ err = "incomplete";
+ goto drop_pdu;
+ }
+ ppdu = pasync_handle->pbuffer;
+ bytes_needed = AMAP_GET_BITS(struct amap_pdu_base,
+ data_len_hi, ppdu);
+ bytes_needed <<= 16;
+ bytes_needed |= be16_to_cpu(AMAP_GET_BITS(struct amap_pdu_base,
+ data_len_lo, ppdu));
+ wq->hdr_len = pasync_handle->buffer_len;
+ wq->bytes_received = 0;
+ wq->bytes_needed = bytes_needed;
+ list_add_tail(&pasync_handle->link, &wq->list);
+ if (!bytes_needed)
+ status = beiscsi_hdl_fwd_pdu(beiscsi_conn,
+ pasync_ctx, cri);
+ } else {
+ /* check if data received has header and is needed */
+ if (!wq->hdr_len || !wq->bytes_needed) {
+ err = "header less";
+ goto drop_pdu;
+ }
+ wq->bytes_received += pasync_handle->buffer_len;
+ /* Something got overwritten? Better catch it here. */
+ if (wq->bytes_received > wq->bytes_needed) {
+ err = "overflow";
+ goto drop_pdu;
+ }
+ list_add_tail(&pasync_handle->link, &wq->list);
+ if (wq->bytes_received == wq->bytes_needed)
+ status = beiscsi_hdl_fwd_pdu(beiscsi_conn,
+ pasync_ctx, cri);
+ }
+ return status;
+
+drop_pdu:
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_ISCSI,
+ "BM_%d : cid %u async PDU %s - def-%c:HL%u:DN%u:DR%u\n",
+ beiscsi_conn->beiscsi_conn_cid, err,
+ pasync_handle->is_header ? 'H' : 'D',
+ wq->hdr_len, wq->bytes_needed,
+ pasync_handle->buffer_len);
+ /* discard this handle */
+ beiscsi_hdl_put_handle(pasync_ctx, pasync_handle);
+ /* free all the other handles in cri_wait_queue */
+ beiscsi_hdl_purge_handles(phba, pasync_ctx, cri);
+ /* try continuing */
+ return status;
+}
+
+static void
+beiscsi_hdq_post_handles(struct beiscsi_hba *phba,
+ u8 header, u8 ulp_num, u16 nbuf)
+{
+ struct hd_async_handle *pasync_handle;
+ struct hd_async_context *pasync_ctx;
+ struct hwi_controller *phwi_ctrlr;
+ struct phys_addr *pasync_sge;
+ u32 ring_id, doorbell = 0;
+ u32 doorbell_offset;
+ u16 prod, pi;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr, ulp_num);
+ if (header) {
+ pasync_sge = pasync_ctx->async_header.ring_base;
+ pi = pasync_ctx->async_header.pi;
+ ring_id = phwi_ctrlr->default_pdu_hdr[ulp_num].id;
+ doorbell_offset = phwi_ctrlr->default_pdu_hdr[ulp_num].
+ doorbell_offset;
+ } else {
+ pasync_sge = pasync_ctx->async_data.ring_base;
+ pi = pasync_ctx->async_data.pi;
+ ring_id = phwi_ctrlr->default_pdu_data[ulp_num].id;
+ doorbell_offset = phwi_ctrlr->default_pdu_data[ulp_num].
+ doorbell_offset;
+ }
+
+ for (prod = 0; prod < nbuf; prod++) {
+ if (header)
+ pasync_handle = pasync_ctx->async_entry[pi].header;
+ else
+ pasync_handle = pasync_ctx->async_entry[pi].data;
+ WARN_ON(pasync_handle->is_header != header);
+ WARN_ON(pasync_handle->index != pi);
+ /* setup the ring only once */
+ if (nbuf == pasync_ctx->num_entries) {
+ /* note hi is lo */
+ pasync_sge[pi].hi = pasync_handle->pa.u.a32.address_lo;
+ pasync_sge[pi].lo = pasync_handle->pa.u.a32.address_hi;
+ }
+ if (++pi == pasync_ctx->num_entries)
+ pi = 0;
+ }
+
+ if (header)
+ pasync_ctx->async_header.pi = pi;
+ else
+ pasync_ctx->async_data.pi = pi;
+
+ doorbell |= ring_id & DB_DEF_PDU_RING_ID_MASK;
+ doorbell |= 1 << DB_DEF_PDU_REARM_SHIFT;
+ doorbell |= 0 << DB_DEF_PDU_EVENT_SHIFT;
+ doorbell |= (prod & DB_DEF_PDU_CQPROC_MASK) << DB_DEF_PDU_CQPROC_SHIFT;
+ iowrite32(doorbell, phba->db_va + doorbell_offset);
+}
+
+static void
+beiscsi_hdq_process_compl(struct beiscsi_conn *beiscsi_conn,
+ struct i_t_dpdu_cqe *pdpdu_cqe)
+{
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
+ struct hd_async_handle *pasync_handle = NULL;
+ struct hd_async_context *pasync_ctx;
+ struct hwi_controller *phwi_ctrlr;
+ u8 ulp_num, consumed, header = 0;
+ u16 cid_cri;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ cid_cri = BE_GET_CRI_FROM_CID(beiscsi_conn->beiscsi_conn_cid);
+ ulp_num = BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr, cid_cri);
+ pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr, ulp_num);
+ pasync_handle = beiscsi_hdl_get_handle(beiscsi_conn, pasync_ctx,
+ pdpdu_cqe, &header);
+ if (is_chip_be2_be3r(phba))
+ consumed = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe,
+ num_cons, pdpdu_cqe);
+ else
+ consumed = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe_v2,
+ num_cons, pdpdu_cqe);
+ if (pasync_handle)
+ beiscsi_hdl_gather_pdu(beiscsi_conn, pasync_ctx, pasync_handle);
+ /* num_cons indicates number of 8 RQEs consumed */
+ if (consumed)
+ beiscsi_hdq_post_handles(phba, header, ulp_num, 8 * consumed);
+}
+
+void beiscsi_process_mcc_cq(struct beiscsi_hba *phba)
+{
+ struct be_queue_info *mcc_cq;
+ struct be_mcc_compl *mcc_compl;
+ unsigned int num_processed = 0;
+
+ mcc_cq = &phba->ctrl.mcc_obj.cq;
+ mcc_compl = queue_tail_node(mcc_cq);
+ mcc_compl->flags = le32_to_cpu(mcc_compl->flags);
+ while (mcc_compl->flags & CQE_FLAGS_VALID_MASK) {
+ if (beiscsi_hba_in_error(phba))
+ return;
+
+ if (num_processed >= 32) {
+ hwi_ring_cq_db(phba, mcc_cq->id,
+ num_processed, 0);
+ num_processed = 0;
+ }
+ if (mcc_compl->flags & CQE_FLAGS_ASYNC_MASK) {
+ beiscsi_process_async_event(phba, mcc_compl);
+ } else if (mcc_compl->flags & CQE_FLAGS_COMPLETED_MASK) {
+ beiscsi_process_mcc_compl(&phba->ctrl, mcc_compl);
+ }
+
+ mcc_compl->flags = 0;
+ queue_tail_inc(mcc_cq);
+ mcc_compl = queue_tail_node(mcc_cq);
+ mcc_compl->flags = le32_to_cpu(mcc_compl->flags);
+ num_processed++;
+ }
+
+ if (num_processed > 0)
+ hwi_ring_cq_db(phba, mcc_cq->id, num_processed, 1);
+}
+
+static void beiscsi_mcc_work(struct work_struct *work)
+{
+ struct be_eq_obj *pbe_eq;
+ struct beiscsi_hba *phba;
+
+ pbe_eq = container_of(work, struct be_eq_obj, mcc_work);
+ phba = pbe_eq->phba;
+ beiscsi_process_mcc_cq(phba);
+ /* rearm EQ for further interrupts */
+ if (!beiscsi_hba_in_error(phba))
+ hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1);
+}
+
+/**
+ * beiscsi_process_cq()- Process the Completion Queue
+ * @pbe_eq: Event Q on which the Completion has come
+ * @budget: Max number of events to processed
+ *
+ * return
+ * Number of Completion Entries processed.
+ **/
+unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq, int budget)
+{
+ struct be_queue_info *cq;
+ struct sol_cqe *sol;
+ unsigned int total = 0;
+ unsigned int num_processed = 0;
+ unsigned short code = 0, cid = 0;
+ uint16_t cri_index = 0;
+ struct beiscsi_conn *beiscsi_conn;
+ struct beiscsi_endpoint *beiscsi_ep;
+ struct iscsi_endpoint *ep;
+ struct beiscsi_hba *phba;
+
+ cq = pbe_eq->cq;
+ sol = queue_tail_node(cq);
+ phba = pbe_eq->phba;
+
+ while (sol->dw[offsetof(struct amap_sol_cqe, valid) / 32] &
+ CQE_VALID_MASK) {
+ if (beiscsi_hba_in_error(phba))
+ return 0;
+
+ be_dws_le_to_cpu(sol, sizeof(struct sol_cqe));
+
+ code = (sol->dw[offsetof(struct amap_sol_cqe, code) / 32] &
+ CQE_CODE_MASK);
+
+ /* Get the CID */
+ if (is_chip_be2_be3r(phba)) {
+ cid = AMAP_GET_BITS(struct amap_sol_cqe, cid, sol);
+ } else {
+ if ((code == DRIVERMSG_NOTIFY) ||
+ (code == UNSOL_HDR_NOTIFY) ||
+ (code == UNSOL_DATA_NOTIFY))
+ cid = AMAP_GET_BITS(
+ struct amap_i_t_dpdu_cqe_v2,
+ cid, sol);
+ else
+ cid = AMAP_GET_BITS(struct amap_sol_cqe_v2,
+ cid, sol);
+ }
+
+ cri_index = BE_GET_CRI_FROM_CID(cid);
+ ep = phba->ep_array[cri_index];
+
+ if (ep == NULL) {
+ /* connection has already been freed
+ * just move on to next one
+ */
+ beiscsi_log(phba, KERN_WARNING,
+ BEISCSI_LOG_INIT,
+ "BM_%d : proc cqe of disconn ep: cid %d\n",
+ cid);
+ goto proc_next_cqe;
+ }
+
+ beiscsi_ep = ep->dd_data;
+ beiscsi_conn = beiscsi_ep->conn;
+
+ /* replenish cq */
+ if (num_processed == 32) {
+ hwi_ring_cq_db(phba, cq->id, 32, 0);
+ num_processed = 0;
+ }
+ total++;
+
+ switch (code) {
+ case SOL_CMD_COMPLETE:
+ hwi_complete_cmd(beiscsi_conn, phba, sol);
+ break;
+ case DRIVERMSG_NOTIFY:
+ beiscsi_log(phba, KERN_INFO,
+ BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+ "BM_%d : Received %s[%d] on CID : %d\n",
+ cqe_desc[code], code, cid);
+
+ hwi_complete_drvr_msgs(beiscsi_conn, phba, sol);
+ break;
+ case UNSOL_HDR_NOTIFY:
+ beiscsi_log(phba, KERN_INFO,
+ BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+ "BM_%d : Received %s[%d] on CID : %d\n",
+ cqe_desc[code], code, cid);
+
+ spin_lock_bh(&phba->async_pdu_lock);
+ beiscsi_hdq_process_compl(beiscsi_conn,
+ (struct i_t_dpdu_cqe *)sol);
+ spin_unlock_bh(&phba->async_pdu_lock);
+ break;
+ case UNSOL_DATA_NOTIFY:
+ beiscsi_log(phba, KERN_INFO,
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
+ "BM_%d : Received %s[%d] on CID : %d\n",
+ cqe_desc[code], code, cid);
+
+ spin_lock_bh(&phba->async_pdu_lock);
+ beiscsi_hdq_process_compl(beiscsi_conn,
+ (struct i_t_dpdu_cqe *)sol);
+ spin_unlock_bh(&phba->async_pdu_lock);
+ break;
+ case CXN_INVALIDATE_INDEX_NOTIFY:
+ case CMD_INVALIDATED_NOTIFY:
+ case CXN_INVALIDATE_NOTIFY:
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+ "BM_%d : Ignoring %s[%d] on CID : %d\n",
+ cqe_desc[code], code, cid);
+ break;
+ case CXN_KILLED_HDR_DIGEST_ERR:
+ case SOL_CMD_KILLED_DATA_DIGEST_ERR:
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
+ "BM_%d : Cmd Notification %s[%d] on CID : %d\n",
+ cqe_desc[code], code, cid);
+ break;
+ case CMD_KILLED_INVALID_STATSN_RCVD:
+ case CMD_KILLED_INVALID_R2T_RCVD:
+ case CMD_CXN_KILLED_LUN_INVALID:
+ case CMD_CXN_KILLED_ICD_INVALID:
+ case CMD_CXN_KILLED_ITT_INVALID:
+ case CMD_CXN_KILLED_SEQ_OUTOFORDER:
+ case CMD_CXN_KILLED_INVALID_DATASN_RCVD:
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
+ "BM_%d : Cmd Notification %s[%d] on CID : %d\n",
+ cqe_desc[code], code, cid);
+ break;
+ case UNSOL_DATA_DIGEST_ERROR_NOTIFY:
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+ "BM_%d : Dropping %s[%d] on DPDU ring on CID : %d\n",
+ cqe_desc[code], code, cid);
+ spin_lock_bh(&phba->async_pdu_lock);
+ /* driver consumes the entry and drops the contents */
+ beiscsi_hdq_process_compl(beiscsi_conn,
+ (struct i_t_dpdu_cqe *)sol);
+ spin_unlock_bh(&phba->async_pdu_lock);
+ break;
+ case CXN_KILLED_PDU_SIZE_EXCEEDS_DSL:
+ case CXN_KILLED_BURST_LEN_MISMATCH:
+ case CXN_KILLED_AHS_RCVD:
+ case CXN_KILLED_UNKNOWN_HDR:
+ case CXN_KILLED_STALE_ITT_TTT_RCVD:
+ case CXN_KILLED_INVALID_ITT_TTT_RCVD:
+ case CXN_KILLED_TIMED_OUT:
+ case CXN_KILLED_FIN_RCVD:
+ case CXN_KILLED_RST_SENT:
+ case CXN_KILLED_RST_RCVD:
+ case CXN_KILLED_BAD_UNSOL_PDU_RCVD:
+ case CXN_KILLED_BAD_WRB_INDEX_ERROR:
+ case CXN_KILLED_OVER_RUN_RESIDUAL:
+ case CXN_KILLED_UNDER_RUN_RESIDUAL:
+ case CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN:
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+ "BM_%d : Event %s[%d] received on CID : %d\n",
+ cqe_desc[code], code, cid);
+ if (beiscsi_conn)
+ iscsi_conn_failure(beiscsi_conn->conn,
+ ISCSI_ERR_CONN_FAILED);
+ break;
+ default:
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+ "BM_%d : Invalid CQE Event Received Code : %d CID 0x%x...\n",
+ code, cid);
+ break;
+ }
+
+proc_next_cqe:
+ AMAP_SET_BITS(struct amap_sol_cqe, valid, sol, 0);
+ queue_tail_inc(cq);
+ sol = queue_tail_node(cq);
+ num_processed++;
+ if (total == budget)
+ break;
+ }
+
+ hwi_ring_cq_db(phba, cq->id, num_processed, 1);
+ return total;
+}
+
+static int be_iopoll(struct irq_poll *iop, int budget)
+{
+ unsigned int ret, io_events;
+ struct beiscsi_hba *phba;
+ struct be_eq_obj *pbe_eq;
+ struct be_eq_entry *eqe = NULL;
+ struct be_queue_info *eq;
+
+ pbe_eq = container_of(iop, struct be_eq_obj, iopoll);
+ phba = pbe_eq->phba;
+ if (beiscsi_hba_in_error(phba)) {
+ irq_poll_complete(iop);
+ return 0;
+ }
+
+ io_events = 0;
+ eq = &pbe_eq->q;
+ eqe = queue_tail_node(eq);
+ while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32] &
+ EQE_VALID_MASK) {
+ AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
+ queue_tail_inc(eq);
+ eqe = queue_tail_node(eq);
+ io_events++;
+ }
+ hwi_ring_eq_db(phba, eq->id, 1, io_events, 0, 1);
+
+ ret = beiscsi_process_cq(pbe_eq, budget);
+ pbe_eq->cq_count += ret;
+ if (ret < budget) {
+ irq_poll_complete(iop);
+ beiscsi_log(phba, KERN_INFO,
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
+ "BM_%d : rearm pbe_eq->q.id =%d ret %d\n",
+ pbe_eq->q.id, ret);
+ if (!beiscsi_hba_in_error(phba))
+ hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1);
+ }
+ return ret;
+}
+
+static void
+hwi_write_sgl_v2(struct iscsi_wrb *pwrb, struct scatterlist *sg,
+ unsigned int num_sg, struct beiscsi_io_task *io_task)
+{
+ struct iscsi_sge *psgl;
+ unsigned int sg_len, index;
+ unsigned int sge_len = 0;
+ unsigned long long addr;
+ struct scatterlist *l_sg;
+ unsigned int offset;
+
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, iscsi_bhs_addr_lo, pwrb,
+ io_task->bhs_pa.u.a32.address_lo);
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, iscsi_bhs_addr_hi, pwrb,
+ io_task->bhs_pa.u.a32.address_hi);
+
+ l_sg = sg;
+ for (index = 0; (index < num_sg) && (index < 2); index++,
+ sg = sg_next(sg)) {
+ if (index == 0) {
+ sg_len = sg_dma_len(sg);
+ addr = (u64) sg_dma_address(sg);
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
+ sge0_addr_lo, pwrb,
+ lower_32_bits(addr));
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
+ sge0_addr_hi, pwrb,
+ upper_32_bits(addr));
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
+ sge0_len, pwrb,
+ sg_len);
+ sge_len = sg_len;
+ } else {
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_r2t_offset,
+ pwrb, sge_len);
+ sg_len = sg_dma_len(sg);
+ addr = (u64) sg_dma_address(sg);
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
+ sge1_addr_lo, pwrb,
+ lower_32_bits(addr));
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
+ sge1_addr_hi, pwrb,
+ upper_32_bits(addr));
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
+ sge1_len, pwrb,
+ sg_len);
+ }
+ }
+ psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag;
+ memset(psgl, 0, sizeof(*psgl) * BE2_SGE);
+
+ AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2);
+
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
+ io_task->bhs_pa.u.a32.address_hi);
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
+ io_task->bhs_pa.u.a32.address_lo);
+
+ if (num_sg == 1) {
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge0_last, pwrb,
+ 1);
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_last, pwrb,
+ 0);
+ } else if (num_sg == 2) {
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge0_last, pwrb,
+ 0);
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_last, pwrb,
+ 1);
+ } else {
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge0_last, pwrb,
+ 0);
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_last, pwrb,
+ 0);
+ }
+
+ sg = l_sg;
+ psgl++;
+ psgl++;
+ offset = 0;
+ for (index = 0; index < num_sg; index++, sg = sg_next(sg), psgl++) {
+ sg_len = sg_dma_len(sg);
+ addr = (u64) sg_dma_address(sg);
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
+ lower_32_bits(addr));
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
+ upper_32_bits(addr));
+ AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len);
+ AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset);
+ AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0);
+ offset += sg_len;
+ }
+ psgl--;
+ AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1);
+}
+
+static void
+hwi_write_sgl(struct iscsi_wrb *pwrb, struct scatterlist *sg,
+ unsigned int num_sg, struct beiscsi_io_task *io_task)
+{
+ struct iscsi_sge *psgl;
+ unsigned int sg_len, index;
+ unsigned int sge_len = 0;
+ unsigned long long addr;
+ struct scatterlist *l_sg;
+ unsigned int offset;
+
+ AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb,
+ io_task->bhs_pa.u.a32.address_lo);
+ AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb,
+ io_task->bhs_pa.u.a32.address_hi);
+
+ l_sg = sg;
+ for (index = 0; (index < num_sg) && (index < 2); index++,
+ sg = sg_next(sg)) {
+ if (index == 0) {
+ sg_len = sg_dma_len(sg);
+ addr = (u64) sg_dma_address(sg);
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb,
+ ((u32)(addr & 0xFFFFFFFF)));
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb,
+ ((u32)(addr >> 32)));
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb,
+ sg_len);
+ sge_len = sg_len;
+ } else {
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_r2t_offset,
+ pwrb, sge_len);
+ sg_len = sg_dma_len(sg);
+ addr = (u64) sg_dma_address(sg);
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_lo, pwrb,
+ ((u32)(addr & 0xFFFFFFFF)));
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_hi, pwrb,
+ ((u32)(addr >> 32)));
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_len, pwrb,
+ sg_len);
+ }
+ }
+ psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag;
+ memset(psgl, 0, sizeof(*psgl) * BE2_SGE);
+
+ AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2);
+
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
+ io_task->bhs_pa.u.a32.address_hi);
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
+ io_task->bhs_pa.u.a32.address_lo);
+
+ if (num_sg == 1) {
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb,
+ 1);
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb,
+ 0);
+ } else if (num_sg == 2) {
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb,
+ 0);
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb,
+ 1);
+ } else {
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb,
+ 0);
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb,
+ 0);
+ }
+ sg = l_sg;
+ psgl++;
+ psgl++;
+ offset = 0;
+ for (index = 0; index < num_sg; index++, sg = sg_next(sg), psgl++) {
+ sg_len = sg_dma_len(sg);
+ addr = (u64) sg_dma_address(sg);
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
+ (addr & 0xFFFFFFFF));
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
+ (addr >> 32));
+ AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len);
+ AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset);
+ AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0);
+ offset += sg_len;
+ }
+ psgl--;
+ AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1);
+}
+
+/**
+ * hwi_write_buffer()- Populate the WRB with task info
+ * @pwrb: ptr to the WRB entry
+ * @task: iscsi task which is to be executed
+ **/
+static int hwi_write_buffer(struct iscsi_wrb *pwrb, struct iscsi_task *task)
+{
+ struct iscsi_sge *psgl;
+ struct beiscsi_io_task *io_task = task->dd_data;
+ struct beiscsi_conn *beiscsi_conn = io_task->conn;
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
+ uint8_t dsp_value = 0;
+
+ io_task->bhs_len = sizeof(struct be_nonio_bhs) - 2;
+ AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb,
+ io_task->bhs_pa.u.a32.address_lo);
+ AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb,
+ io_task->bhs_pa.u.a32.address_hi);
+
+ if (task->data) {
+
+ /* Check for the data_count */
+ dsp_value = (task->data_count) ? 1 : 0;
+
+ if (is_chip_be2_be3r(phba))
+ AMAP_SET_BITS(struct amap_iscsi_wrb, dsp,
+ pwrb, dsp_value);
+ else
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, dsp,
+ pwrb, dsp_value);
+
+ /* Map addr only if there is data_count */
+ if (dsp_value) {
+ io_task->mtask_addr = dma_map_single(&phba->pcidev->dev,
+ task->data,
+ task->data_count,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(&phba->pcidev->dev,
+ io_task->mtask_addr))
+ return -ENOMEM;
+ io_task->mtask_data_count = task->data_count;
+ } else
+ io_task->mtask_addr = 0;
+
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb,
+ lower_32_bits(io_task->mtask_addr));
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb,
+ upper_32_bits(io_task->mtask_addr));
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb,
+ task->data_count);
+
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 1);
+ } else {
+ AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0);
+ io_task->mtask_addr = 0;
+ }
+
+ psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag;
+
+ AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len);
+
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
+ io_task->bhs_pa.u.a32.address_hi);
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
+ io_task->bhs_pa.u.a32.address_lo);
+ if (task->data) {
+ psgl++;
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 0);
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 0);
+ AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0);
+ AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, 0);
+ AMAP_SET_BITS(struct amap_iscsi_sge, rsvd0, psgl, 0);
+ AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0);
+
+ psgl++;
+ if (task->data) {
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
+ lower_32_bits(io_task->mtask_addr));
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
+ upper_32_bits(io_task->mtask_addr));
+ }
+ AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0x106);
+ }
+ AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1);
+ return 0;
+}
+
+/**
+ * beiscsi_find_mem_req()- Find mem needed
+ * @phba: ptr to HBA struct
+ **/
+static void beiscsi_find_mem_req(struct beiscsi_hba *phba)
+{
+ uint8_t mem_descr_index, ulp_num;
+ unsigned int num_async_pdu_buf_pages;
+ unsigned int num_async_pdu_data_pages, wrb_sz_per_cxn;
+ unsigned int num_async_pdu_buf_sgl_pages, num_async_pdu_data_sgl_pages;
+
+ phba->params.hwi_ws_sz = sizeof(struct hwi_controller);
+
+ phba->mem_req[ISCSI_MEM_GLOBAL_HEADER] = 2 *
+ BE_ISCSI_PDU_HEADER_SIZE;
+ phba->mem_req[HWI_MEM_ADDN_CONTEXT] =
+ sizeof(struct hwi_context_memory);
+
+
+ phba->mem_req[HWI_MEM_WRB] = sizeof(struct iscsi_wrb)
+ * (phba->params.wrbs_per_cxn)
+ * phba->params.cxns_per_ctrl;
+ wrb_sz_per_cxn = sizeof(struct wrb_handle) *
+ (phba->params.wrbs_per_cxn);
+ phba->mem_req[HWI_MEM_WRBH] = roundup_pow_of_two((wrb_sz_per_cxn) *
+ phba->params.cxns_per_ctrl);
+
+ phba->mem_req[HWI_MEM_SGLH] = sizeof(struct sgl_handle) *
+ phba->params.icds_per_ctrl;
+ phba->mem_req[HWI_MEM_SGE] = sizeof(struct iscsi_sge) *
+ phba->params.num_sge_per_io * phba->params.icds_per_ctrl;
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+ if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
+
+ num_async_pdu_buf_sgl_pages =
+ PAGES_REQUIRED(BEISCSI_ASYNC_HDQ_SIZE(
+ phba, ulp_num) *
+ sizeof(struct phys_addr));
+
+ num_async_pdu_buf_pages =
+ PAGES_REQUIRED(BEISCSI_ASYNC_HDQ_SIZE(
+ phba, ulp_num) *
+ phba->params.defpdu_hdr_sz);
+
+ num_async_pdu_data_pages =
+ PAGES_REQUIRED(BEISCSI_ASYNC_HDQ_SIZE(
+ phba, ulp_num) *
+ phba->params.defpdu_data_sz);
+
+ num_async_pdu_data_sgl_pages =
+ PAGES_REQUIRED(BEISCSI_ASYNC_HDQ_SIZE(
+ phba, ulp_num) *
+ sizeof(struct phys_addr));
+
+ mem_descr_index = (HWI_MEM_TEMPLATE_HDR_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET));
+ phba->mem_req[mem_descr_index] =
+ BEISCSI_GET_CID_COUNT(phba, ulp_num) *
+ BEISCSI_TEMPLATE_HDR_PER_CXN_SIZE;
+
+ mem_descr_index = (HWI_MEM_ASYNC_HEADER_BUF_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET));
+ phba->mem_req[mem_descr_index] =
+ num_async_pdu_buf_pages *
+ PAGE_SIZE;
+
+ mem_descr_index = (HWI_MEM_ASYNC_DATA_BUF_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET));
+ phba->mem_req[mem_descr_index] =
+ num_async_pdu_data_pages *
+ PAGE_SIZE;
+
+ mem_descr_index = (HWI_MEM_ASYNC_HEADER_RING_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET));
+ phba->mem_req[mem_descr_index] =
+ num_async_pdu_buf_sgl_pages *
+ PAGE_SIZE;
+
+ mem_descr_index = (HWI_MEM_ASYNC_DATA_RING_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET));
+ phba->mem_req[mem_descr_index] =
+ num_async_pdu_data_sgl_pages *
+ PAGE_SIZE;
+
+ mem_descr_index = (HWI_MEM_ASYNC_HEADER_HANDLE_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET));
+ phba->mem_req[mem_descr_index] =
+ BEISCSI_ASYNC_HDQ_SIZE(phba, ulp_num) *
+ sizeof(struct hd_async_handle);
+
+ mem_descr_index = (HWI_MEM_ASYNC_DATA_HANDLE_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET));
+ phba->mem_req[mem_descr_index] =
+ BEISCSI_ASYNC_HDQ_SIZE(phba, ulp_num) *
+ sizeof(struct hd_async_handle);
+
+ mem_descr_index = (HWI_MEM_ASYNC_PDU_CONTEXT_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET));
+ phba->mem_req[mem_descr_index] =
+ sizeof(struct hd_async_context) +
+ (BEISCSI_ASYNC_HDQ_SIZE(phba, ulp_num) *
+ sizeof(struct hd_async_entry));
+ }
+ }
+}
+
+static int beiscsi_alloc_mem(struct beiscsi_hba *phba)
+{
+ dma_addr_t bus_add;
+ struct hwi_controller *phwi_ctrlr;
+ struct be_mem_descriptor *mem_descr;
+ struct mem_array *mem_arr, *mem_arr_orig;
+ unsigned int i, j, alloc_size, curr_alloc_size;
+
+ phba->phwi_ctrlr = kzalloc(phba->params.hwi_ws_sz, GFP_KERNEL);
+ if (!phba->phwi_ctrlr)
+ return -ENOMEM;
+
+ /* Allocate memory for wrb_context */
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_ctrlr->wrb_context = kcalloc(phba->params.cxns_per_ctrl,
+ sizeof(struct hwi_wrb_context),
+ GFP_KERNEL);
+ if (!phwi_ctrlr->wrb_context) {
+ kfree(phba->phwi_ctrlr);
+ return -ENOMEM;
+ }
+
+ phba->init_mem = kcalloc(SE_MEM_MAX, sizeof(*mem_descr),
+ GFP_KERNEL);
+ if (!phba->init_mem) {
+ kfree(phwi_ctrlr->wrb_context);
+ kfree(phba->phwi_ctrlr);
+ return -ENOMEM;
+ }
+
+ mem_arr_orig = kmalloc_array(BEISCSI_MAX_FRAGS_INIT,
+ sizeof(*mem_arr_orig),
+ GFP_KERNEL);
+ if (!mem_arr_orig) {
+ kfree(phba->init_mem);
+ kfree(phwi_ctrlr->wrb_context);
+ kfree(phba->phwi_ctrlr);
+ return -ENOMEM;
+ }
+
+ mem_descr = phba->init_mem;
+ for (i = 0; i < SE_MEM_MAX; i++) {
+ if (!phba->mem_req[i]) {
+ mem_descr->mem_array = NULL;
+ mem_descr++;
+ continue;
+ }
+
+ j = 0;
+ mem_arr = mem_arr_orig;
+ alloc_size = phba->mem_req[i];
+ memset(mem_arr, 0, sizeof(struct mem_array) *
+ BEISCSI_MAX_FRAGS_INIT);
+ curr_alloc_size = min(be_max_phys_size * 1024, alloc_size);
+ do {
+ mem_arr->virtual_address =
+ dma_alloc_coherent(&phba->pcidev->dev,
+ curr_alloc_size, &bus_add, GFP_KERNEL);
+ if (!mem_arr->virtual_address) {
+ if (curr_alloc_size <= BE_MIN_MEM_SIZE)
+ goto free_mem;
+ if (curr_alloc_size -
+ rounddown_pow_of_two(curr_alloc_size))
+ curr_alloc_size = rounddown_pow_of_two
+ (curr_alloc_size);
+ else
+ curr_alloc_size = curr_alloc_size / 2;
+ } else {
+ mem_arr->bus_address.u.
+ a64.address = (__u64) bus_add;
+ mem_arr->size = curr_alloc_size;
+ alloc_size -= curr_alloc_size;
+ curr_alloc_size = min(be_max_phys_size *
+ 1024, alloc_size);
+ j++;
+ mem_arr++;
+ }
+ } while (alloc_size);
+ mem_descr->num_elements = j;
+ mem_descr->size_in_bytes = phba->mem_req[i];
+ mem_descr->mem_array = kmalloc_array(j, sizeof(*mem_arr),
+ GFP_KERNEL);
+ if (!mem_descr->mem_array)
+ goto free_mem;
+
+ memcpy(mem_descr->mem_array, mem_arr_orig,
+ sizeof(struct mem_array) * j);
+ mem_descr++;
+ }
+ kfree(mem_arr_orig);
+ return 0;
+free_mem:
+ mem_descr->num_elements = j;
+ while ((i) || (j)) {
+ for (j = mem_descr->num_elements; j > 0; j--) {
+ dma_free_coherent(&phba->pcidev->dev,
+ mem_descr->mem_array[j - 1].size,
+ mem_descr->mem_array[j - 1].
+ virtual_address,
+ (unsigned long)mem_descr->
+ mem_array[j - 1].
+ bus_address.u.a64.address);
+ }
+ if (i) {
+ i--;
+ kfree(mem_descr->mem_array);
+ mem_descr--;
+ }
+ }
+ kfree(mem_arr_orig);
+ kfree(phba->init_mem);
+ kfree(phba->phwi_ctrlr->wrb_context);
+ kfree(phba->phwi_ctrlr);
+ return -ENOMEM;
+}
+
+static int beiscsi_get_memory(struct beiscsi_hba *phba)
+{
+ beiscsi_find_mem_req(phba);
+ return beiscsi_alloc_mem(phba);
+}
+
+static void iscsi_init_global_templates(struct beiscsi_hba *phba)
+{
+ struct pdu_data_out *pdata_out;
+ struct pdu_nop_out *pnop_out;
+ struct be_mem_descriptor *mem_descr;
+
+ mem_descr = phba->init_mem;
+ mem_descr += ISCSI_MEM_GLOBAL_HEADER;
+ pdata_out =
+ (struct pdu_data_out *)mem_descr->mem_array[0].virtual_address;
+ memset(pdata_out, 0, BE_ISCSI_PDU_HEADER_SIZE);
+
+ AMAP_SET_BITS(struct amap_pdu_data_out, opcode, pdata_out,
+ IIOC_SCSI_DATA);
+
+ pnop_out =
+ (struct pdu_nop_out *)((unsigned char *)mem_descr->mem_array[0].
+ virtual_address + BE_ISCSI_PDU_HEADER_SIZE);
+
+ memset(pnop_out, 0, BE_ISCSI_PDU_HEADER_SIZE);
+ AMAP_SET_BITS(struct amap_pdu_nop_out, ttt, pnop_out, 0xFFFFFFFF);
+ AMAP_SET_BITS(struct amap_pdu_nop_out, f_bit, pnop_out, 1);
+ AMAP_SET_BITS(struct amap_pdu_nop_out, i_bit, pnop_out, 0);
+}
+
+static int beiscsi_init_wrb_handle(struct beiscsi_hba *phba)
+{
+ struct be_mem_descriptor *mem_descr_wrbh, *mem_descr_wrb;
+ struct hwi_context_memory *phwi_ctxt;
+ struct wrb_handle *pwrb_handle = NULL;
+ struct hwi_controller *phwi_ctrlr;
+ struct hwi_wrb_context *pwrb_context;
+ struct iscsi_wrb *pwrb = NULL;
+ unsigned int num_cxn_wrbh = 0;
+ unsigned int num_cxn_wrb = 0, j, idx = 0, index;
+
+ mem_descr_wrbh = phba->init_mem;
+ mem_descr_wrbh += HWI_MEM_WRBH;
+
+ mem_descr_wrb = phba->init_mem;
+ mem_descr_wrb += HWI_MEM_WRB;
+ phwi_ctrlr = phba->phwi_ctrlr;
+
+ /* Allocate memory for WRBQ */
+ phwi_ctxt = phwi_ctrlr->phwi_ctxt;
+ phwi_ctxt->be_wrbq = kcalloc(phba->params.cxns_per_ctrl,
+ sizeof(struct be_queue_info),
+ GFP_KERNEL);
+ if (!phwi_ctxt->be_wrbq) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : WRBQ Mem Alloc Failed\n");
+ return -ENOMEM;
+ }
+
+ for (index = 0; index < phba->params.cxns_per_ctrl; index++) {
+ pwrb_context = &phwi_ctrlr->wrb_context[index];
+ pwrb_context->pwrb_handle_base =
+ kcalloc(phba->params.wrbs_per_cxn,
+ sizeof(struct wrb_handle *),
+ GFP_KERNEL);
+ if (!pwrb_context->pwrb_handle_base) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : Mem Alloc Failed. Failing to load\n");
+ goto init_wrb_hndl_failed;
+ }
+ pwrb_context->pwrb_handle_basestd =
+ kcalloc(phba->params.wrbs_per_cxn,
+ sizeof(struct wrb_handle *),
+ GFP_KERNEL);
+ if (!pwrb_context->pwrb_handle_basestd) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : Mem Alloc Failed. Failing to load\n");
+ goto init_wrb_hndl_failed;
+ }
+ if (!num_cxn_wrbh) {
+ pwrb_handle =
+ mem_descr_wrbh->mem_array[idx].virtual_address;
+ num_cxn_wrbh = ((mem_descr_wrbh->mem_array[idx].size) /
+ ((sizeof(struct wrb_handle)) *
+ phba->params.wrbs_per_cxn));
+ idx++;
+ }
+ pwrb_context->alloc_index = 0;
+ pwrb_context->wrb_handles_available = 0;
+ pwrb_context->free_index = 0;
+
+ if (num_cxn_wrbh) {
+ for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
+ pwrb_context->pwrb_handle_base[j] = pwrb_handle;
+ pwrb_context->pwrb_handle_basestd[j] =
+ pwrb_handle;
+ pwrb_context->wrb_handles_available++;
+ pwrb_handle->wrb_index = j;
+ pwrb_handle++;
+ }
+ num_cxn_wrbh--;
+ }
+ spin_lock_init(&pwrb_context->wrb_lock);
+ }
+ idx = 0;
+ for (index = 0; index < phba->params.cxns_per_ctrl; index++) {
+ pwrb_context = &phwi_ctrlr->wrb_context[index];
+ if (!num_cxn_wrb) {
+ pwrb = mem_descr_wrb->mem_array[idx].virtual_address;
+ num_cxn_wrb = (mem_descr_wrb->mem_array[idx].size) /
+ ((sizeof(struct iscsi_wrb) *
+ phba->params.wrbs_per_cxn));
+ idx++;
+ }
+
+ if (num_cxn_wrb) {
+ for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
+ pwrb_handle = pwrb_context->pwrb_handle_base[j];
+ pwrb_handle->pwrb = pwrb;
+ pwrb++;
+ }
+ num_cxn_wrb--;
+ }
+ }
+ return 0;
+init_wrb_hndl_failed:
+ for (j = index; j > 0; j--) {
+ pwrb_context = &phwi_ctrlr->wrb_context[j];
+ kfree(pwrb_context->pwrb_handle_base);
+ kfree(pwrb_context->pwrb_handle_basestd);
+ }
+ kfree(phwi_ctxt->be_wrbq);
+ return -ENOMEM;
+}
+
+static int hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
+{
+ uint8_t ulp_num;
+ struct hwi_controller *phwi_ctrlr;
+ struct hba_parameters *p = &phba->params;
+ struct hd_async_context *pasync_ctx;
+ struct hd_async_handle *pasync_header_h, *pasync_data_h;
+ unsigned int index, idx, num_per_mem, num_async_data;
+ struct be_mem_descriptor *mem_descr;
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+ if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
+ /* get async_ctx for each ULP */
+ mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+ mem_descr += (HWI_MEM_ASYNC_PDU_CONTEXT_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET));
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num] =
+ (struct hd_async_context *)
+ mem_descr->mem_array[0].virtual_address;
+
+ pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num];
+ memset(pasync_ctx, 0, sizeof(*pasync_ctx));
+
+ pasync_ctx->async_entry =
+ (struct hd_async_entry *)
+ ((long unsigned int)pasync_ctx +
+ sizeof(struct hd_async_context));
+
+ pasync_ctx->num_entries = BEISCSI_ASYNC_HDQ_SIZE(phba,
+ ulp_num);
+ /* setup header buffers */
+ mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+ mem_descr += HWI_MEM_ASYNC_HEADER_BUF_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET);
+ if (mem_descr->mem_array[0].virtual_address) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : hwi_init_async_pdu_ctx"
+ " HWI_MEM_ASYNC_HEADER_BUF_ULP%d va=%p\n",
+ ulp_num,
+ mem_descr->mem_array[0].
+ virtual_address);
+ } else
+ beiscsi_log(phba, KERN_WARNING,
+ BEISCSI_LOG_INIT,
+ "BM_%d : No Virtual address for ULP : %d\n",
+ ulp_num);
+
+ pasync_ctx->async_header.pi = 0;
+ pasync_ctx->async_header.buffer_size = p->defpdu_hdr_sz;
+ pasync_ctx->async_header.va_base =
+ mem_descr->mem_array[0].virtual_address;
+
+ pasync_ctx->async_header.pa_base.u.a64.address =
+ mem_descr->mem_array[0].
+ bus_address.u.a64.address;
+
+ /* setup header buffer sgls */
+ mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+ mem_descr += HWI_MEM_ASYNC_HEADER_RING_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET);
+ if (mem_descr->mem_array[0].virtual_address) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : hwi_init_async_pdu_ctx"
+ " HWI_MEM_ASYNC_HEADER_RING_ULP%d va=%p\n",
+ ulp_num,
+ mem_descr->mem_array[0].
+ virtual_address);
+ } else
+ beiscsi_log(phba, KERN_WARNING,
+ BEISCSI_LOG_INIT,
+ "BM_%d : No Virtual address for ULP : %d\n",
+ ulp_num);
+
+ pasync_ctx->async_header.ring_base =
+ mem_descr->mem_array[0].virtual_address;
+
+ /* setup header buffer handles */
+ mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+ mem_descr += HWI_MEM_ASYNC_HEADER_HANDLE_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET);
+ if (mem_descr->mem_array[0].virtual_address) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : hwi_init_async_pdu_ctx"
+ " HWI_MEM_ASYNC_HEADER_HANDLE_ULP%d va=%p\n",
+ ulp_num,
+ mem_descr->mem_array[0].
+ virtual_address);
+ } else
+ beiscsi_log(phba, KERN_WARNING,
+ BEISCSI_LOG_INIT,
+ "BM_%d : No Virtual address for ULP : %d\n",
+ ulp_num);
+
+ pasync_ctx->async_header.handle_base =
+ mem_descr->mem_array[0].virtual_address;
+
+ /* setup data buffer sgls */
+ mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+ mem_descr += HWI_MEM_ASYNC_DATA_RING_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET);
+ if (mem_descr->mem_array[0].virtual_address) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : hwi_init_async_pdu_ctx"
+ " HWI_MEM_ASYNC_DATA_RING_ULP%d va=%p\n",
+ ulp_num,
+ mem_descr->mem_array[0].
+ virtual_address);
+ } else
+ beiscsi_log(phba, KERN_WARNING,
+ BEISCSI_LOG_INIT,
+ "BM_%d : No Virtual address for ULP : %d\n",
+ ulp_num);
+
+ pasync_ctx->async_data.ring_base =
+ mem_descr->mem_array[0].virtual_address;
+
+ /* setup data buffer handles */
+ mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+ mem_descr += HWI_MEM_ASYNC_DATA_HANDLE_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET);
+ if (!mem_descr->mem_array[0].virtual_address)
+ beiscsi_log(phba, KERN_WARNING,
+ BEISCSI_LOG_INIT,
+ "BM_%d : No Virtual address for ULP : %d\n",
+ ulp_num);
+
+ pasync_ctx->async_data.handle_base =
+ mem_descr->mem_array[0].virtual_address;
+
+ pasync_header_h =
+ (struct hd_async_handle *)
+ pasync_ctx->async_header.handle_base;
+ pasync_data_h =
+ (struct hd_async_handle *)
+ pasync_ctx->async_data.handle_base;
+
+ /* setup data buffers */
+ mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+ mem_descr += HWI_MEM_ASYNC_DATA_BUF_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET);
+ if (mem_descr->mem_array[0].virtual_address) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : hwi_init_async_pdu_ctx"
+ " HWI_MEM_ASYNC_DATA_BUF_ULP%d va=%p\n",
+ ulp_num,
+ mem_descr->mem_array[0].
+ virtual_address);
+ } else
+ beiscsi_log(phba, KERN_WARNING,
+ BEISCSI_LOG_INIT,
+ "BM_%d : No Virtual address for ULP : %d\n",
+ ulp_num);
+
+ idx = 0;
+ pasync_ctx->async_data.pi = 0;
+ pasync_ctx->async_data.buffer_size = p->defpdu_data_sz;
+ pasync_ctx->async_data.va_base =
+ mem_descr->mem_array[idx].virtual_address;
+ pasync_ctx->async_data.pa_base.u.a64.address =
+ mem_descr->mem_array[idx].
+ bus_address.u.a64.address;
+
+ num_async_data = ((mem_descr->mem_array[idx].size) /
+ phba->params.defpdu_data_sz);
+ num_per_mem = 0;
+
+ for (index = 0; index < BEISCSI_ASYNC_HDQ_SIZE
+ (phba, ulp_num); index++) {
+ pasync_header_h->cri = -1;
+ pasync_header_h->is_header = 1;
+ pasync_header_h->index = index;
+ INIT_LIST_HEAD(&pasync_header_h->link);
+ pasync_header_h->pbuffer =
+ (void *)((unsigned long)
+ (pasync_ctx->
+ async_header.va_base) +
+ (p->defpdu_hdr_sz * index));
+
+ pasync_header_h->pa.u.a64.address =
+ pasync_ctx->async_header.pa_base.u.a64.
+ address + (p->defpdu_hdr_sz * index);
+
+ pasync_ctx->async_entry[index].header =
+ pasync_header_h;
+ pasync_header_h++;
+ INIT_LIST_HEAD(&pasync_ctx->async_entry[index].
+ wq.list);
+
+ pasync_data_h->cri = -1;
+ pasync_data_h->is_header = 0;
+ pasync_data_h->index = index;
+ INIT_LIST_HEAD(&pasync_data_h->link);
+
+ if (!num_async_data) {
+ num_per_mem = 0;
+ idx++;
+ pasync_ctx->async_data.va_base =
+ mem_descr->mem_array[idx].
+ virtual_address;
+ pasync_ctx->async_data.pa_base.u.
+ a64.address =
+ mem_descr->mem_array[idx].
+ bus_address.u.a64.address;
+ num_async_data =
+ ((mem_descr->mem_array[idx].
+ size) /
+ phba->params.defpdu_data_sz);
+ }
+ pasync_data_h->pbuffer =
+ (void *)((unsigned long)
+ (pasync_ctx->async_data.va_base) +
+ (p->defpdu_data_sz * num_per_mem));
+
+ pasync_data_h->pa.u.a64.address =
+ pasync_ctx->async_data.pa_base.u.a64.
+ address + (p->defpdu_data_sz *
+ num_per_mem);
+ num_per_mem++;
+ num_async_data--;
+
+ pasync_ctx->async_entry[index].data =
+ pasync_data_h;
+ pasync_data_h++;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int
+be_sgl_create_contiguous(void *virtual_address,
+ u64 physical_address, u32 length,
+ struct be_dma_mem *sgl)
+{
+ WARN_ON(!virtual_address);
+ WARN_ON(!physical_address);
+ WARN_ON(!length);
+ WARN_ON(!sgl);
+
+ sgl->va = virtual_address;
+ sgl->dma = (unsigned long)physical_address;
+ sgl->size = length;
+
+ return 0;
+}
+
+static void be_sgl_destroy_contiguous(struct be_dma_mem *sgl)
+{
+ memset(sgl, 0, sizeof(*sgl));
+}
+
+static void
+hwi_build_be_sgl_arr(struct beiscsi_hba *phba,
+ struct mem_array *pmem, struct be_dma_mem *sgl)
+{
+ if (sgl->va)
+ be_sgl_destroy_contiguous(sgl);
+
+ be_sgl_create_contiguous(pmem->virtual_address,
+ pmem->bus_address.u.a64.address,
+ pmem->size, sgl);
+}
+
+static void
+hwi_build_be_sgl_by_offset(struct beiscsi_hba *phba,
+ struct mem_array *pmem, struct be_dma_mem *sgl)
+{
+ if (sgl->va)
+ be_sgl_destroy_contiguous(sgl);
+
+ be_sgl_create_contiguous((unsigned char *)pmem->virtual_address,
+ pmem->bus_address.u.a64.address,
+ pmem->size, sgl);
+}
+
+static int be_fill_queue(struct be_queue_info *q,
+ u16 len, u16 entry_size, void *vaddress)
+{
+ struct be_dma_mem *mem = &q->dma_mem;
+
+ memset(q, 0, sizeof(*q));
+ q->len = len;
+ q->entry_size = entry_size;
+ mem->size = len * entry_size;
+ mem->va = vaddress;
+ if (!mem->va)
+ return -ENOMEM;
+ memset(mem->va, 0, mem->size);
+ return 0;
+}
+
+static int beiscsi_create_eqs(struct beiscsi_hba *phba,
+ struct hwi_context_memory *phwi_context)
+{
+ int ret = -ENOMEM, eq_for_mcc;
+ unsigned int i, num_eq_pages;
+ struct be_queue_info *eq;
+ struct be_dma_mem *mem;
+ void *eq_vaddress;
+ dma_addr_t paddr;
+
+ num_eq_pages = PAGES_REQUIRED(phba->params.num_eq_entries *
+ sizeof(struct be_eq_entry));
+
+ if (phba->pcidev->msix_enabled)
+ eq_for_mcc = 1;
+ else
+ eq_for_mcc = 0;
+ for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) {
+ eq = &phwi_context->be_eq[i].q;
+ mem = &eq->dma_mem;
+ phwi_context->be_eq[i].phba = phba;
+ eq_vaddress = dma_alloc_coherent(&phba->pcidev->dev,
+ num_eq_pages * PAGE_SIZE,
+ &paddr, GFP_KERNEL);
+ if (!eq_vaddress) {
+ ret = -ENOMEM;
+ goto create_eq_error;
+ }
+
+ mem->va = eq_vaddress;
+ ret = be_fill_queue(eq, phba->params.num_eq_entries,
+ sizeof(struct be_eq_entry), eq_vaddress);
+ if (ret) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : be_fill_queue Failed for EQ\n");
+ goto create_eq_error;
+ }
+
+ mem->dma = paddr;
+ ret = beiscsi_cmd_eq_create(&phba->ctrl, eq,
+ BEISCSI_EQ_DELAY_DEF);
+ if (ret) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : beiscsi_cmd_eq_create Failed for EQ\n");
+ goto create_eq_error;
+ }
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : eqid = %d\n",
+ phwi_context->be_eq[i].q.id);
+ }
+ return 0;
+
+create_eq_error:
+ for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) {
+ eq = &phwi_context->be_eq[i].q;
+ mem = &eq->dma_mem;
+ if (mem->va)
+ dma_free_coherent(&phba->pcidev->dev, num_eq_pages
+ * PAGE_SIZE,
+ mem->va, mem->dma);
+ }
+ return ret;
+}
+
+static int beiscsi_create_cqs(struct beiscsi_hba *phba,
+ struct hwi_context_memory *phwi_context)
+{
+ unsigned int i, num_cq_pages;
+ struct be_queue_info *cq, *eq;
+ struct be_dma_mem *mem;
+ struct be_eq_obj *pbe_eq;
+ void *cq_vaddress;
+ int ret = -ENOMEM;
+ dma_addr_t paddr;
+
+ num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries *
+ sizeof(struct sol_cqe));
+
+ for (i = 0; i < phba->num_cpus; i++) {
+ cq = &phwi_context->be_cq[i];
+ eq = &phwi_context->be_eq[i].q;
+ pbe_eq = &phwi_context->be_eq[i];
+ pbe_eq->cq = cq;
+ pbe_eq->phba = phba;
+ mem = &cq->dma_mem;
+ cq_vaddress = dma_alloc_coherent(&phba->pcidev->dev,
+ num_cq_pages * PAGE_SIZE,
+ &paddr, GFP_KERNEL);
+ if (!cq_vaddress) {
+ ret = -ENOMEM;
+ goto create_cq_error;
+ }
+
+ ret = be_fill_queue(cq, phba->params.num_cq_entries,
+ sizeof(struct sol_cqe), cq_vaddress);
+ if (ret) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : be_fill_queue Failed for ISCSI CQ\n");
+ goto create_cq_error;
+ }
+
+ mem->dma = paddr;
+ ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false,
+ false, 0);
+ if (ret) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : beiscsi_cmd_eq_create Failed for ISCSI CQ\n");
+ goto create_cq_error;
+ }
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : iscsi cq_id is %d for eq_id %d\n"
+ "iSCSI CQ CREATED\n", cq->id, eq->id);
+ }
+ return 0;
+
+create_cq_error:
+ for (i = 0; i < phba->num_cpus; i++) {
+ cq = &phwi_context->be_cq[i];
+ mem = &cq->dma_mem;
+ if (mem->va)
+ dma_free_coherent(&phba->pcidev->dev, num_cq_pages
+ * PAGE_SIZE,
+ mem->va, mem->dma);
+ }
+ return ret;
+}
+
+static int
+beiscsi_create_def_hdr(struct beiscsi_hba *phba,
+ struct hwi_context_memory *phwi_context,
+ struct hwi_controller *phwi_ctrlr,
+ unsigned int def_pdu_ring_sz, uint8_t ulp_num)
+{
+ unsigned int idx;
+ int ret;
+ struct be_queue_info *dq, *cq;
+ struct be_dma_mem *mem;
+ struct be_mem_descriptor *mem_descr;
+ void *dq_vaddress;
+
+ idx = 0;
+ dq = &phwi_context->be_def_hdrq[ulp_num];
+ cq = &phwi_context->be_cq[0];
+ mem = &dq->dma_mem;
+ mem_descr = phba->init_mem;
+ mem_descr += HWI_MEM_ASYNC_HEADER_RING_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET);
+ dq_vaddress = mem_descr->mem_array[idx].virtual_address;
+ ret = be_fill_queue(dq, mem_descr->mem_array[0].size /
+ sizeof(struct phys_addr),
+ sizeof(struct phys_addr), dq_vaddress);
+ if (ret) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : be_fill_queue Failed for DEF PDU HDR on ULP : %d\n",
+ ulp_num);
+
+ return ret;
+ }
+ mem->dma = (unsigned long)mem_descr->mem_array[idx].
+ bus_address.u.a64.address;
+ ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dq,
+ def_pdu_ring_sz,
+ phba->params.defpdu_hdr_sz,
+ BEISCSI_DEFQ_HDR, ulp_num);
+ if (ret) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : be_cmd_create_default_pdu_queue Failed DEFHDR on ULP : %d\n",
+ ulp_num);
+
+ return ret;
+ }
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : iscsi hdr def pdu id for ULP : %d is %d\n",
+ ulp_num,
+ phwi_context->be_def_hdrq[ulp_num].id);
+ return 0;
+}
+
+static int
+beiscsi_create_def_data(struct beiscsi_hba *phba,
+ struct hwi_context_memory *phwi_context,
+ struct hwi_controller *phwi_ctrlr,
+ unsigned int def_pdu_ring_sz, uint8_t ulp_num)
+{
+ unsigned int idx;
+ int ret;
+ struct be_queue_info *dataq, *cq;
+ struct be_dma_mem *mem;
+ struct be_mem_descriptor *mem_descr;
+ void *dq_vaddress;
+
+ idx = 0;
+ dataq = &phwi_context->be_def_dataq[ulp_num];
+ cq = &phwi_context->be_cq[0];
+ mem = &dataq->dma_mem;
+ mem_descr = phba->init_mem;
+ mem_descr += HWI_MEM_ASYNC_DATA_RING_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET);
+ dq_vaddress = mem_descr->mem_array[idx].virtual_address;
+ ret = be_fill_queue(dataq, mem_descr->mem_array[0].size /
+ sizeof(struct phys_addr),
+ sizeof(struct phys_addr), dq_vaddress);
+ if (ret) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : be_fill_queue Failed for DEF PDU "
+ "DATA on ULP : %d\n",
+ ulp_num);
+
+ return ret;
+ }
+ mem->dma = (unsigned long)mem_descr->mem_array[idx].
+ bus_address.u.a64.address;
+ ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dataq,
+ def_pdu_ring_sz,
+ phba->params.defpdu_data_sz,
+ BEISCSI_DEFQ_DATA, ulp_num);
+ if (ret) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d be_cmd_create_default_pdu_queue"
+ " Failed for DEF PDU DATA on ULP : %d\n",
+ ulp_num);
+ return ret;
+ }
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : iscsi def data id on ULP : %d is %d\n",
+ ulp_num,
+ phwi_context->be_def_dataq[ulp_num].id);
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : DEFAULT PDU DATA RING CREATED on ULP : %d\n",
+ ulp_num);
+ return 0;
+}
+
+
+static int
+beiscsi_post_template_hdr(struct beiscsi_hba *phba)
+{
+ struct be_mem_descriptor *mem_descr;
+ struct mem_array *pm_arr;
+ struct be_dma_mem sgl;
+ int status, ulp_num;
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+ if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
+ mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+ mem_descr += HWI_MEM_TEMPLATE_HDR_ULP0 +
+ (ulp_num * MEM_DESCR_OFFSET);
+ pm_arr = mem_descr->mem_array;
+
+ hwi_build_be_sgl_arr(phba, pm_arr, &sgl);
+ status = be_cmd_iscsi_post_template_hdr(
+ &phba->ctrl, &sgl);
+
+ if (status != 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : Post Template HDR Failed for "
+ "ULP_%d\n", ulp_num);
+ return status;
+ }
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : Template HDR Pages Posted for "
+ "ULP_%d\n", ulp_num);
+ }
+ }
+ return 0;
+}
+
+static int
+beiscsi_post_pages(struct beiscsi_hba *phba)
+{
+ struct be_mem_descriptor *mem_descr;
+ struct mem_array *pm_arr;
+ unsigned int page_offset, i;
+ struct be_dma_mem sgl;
+ int status, ulp_num = 0;
+
+ mem_descr = phba->init_mem;
+ mem_descr += HWI_MEM_SGE;
+ pm_arr = mem_descr->mem_array;
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
+ if (test_bit(ulp_num, &phba->fw_config.ulp_supported))
+ break;
+
+ page_offset = (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io *
+ phba->fw_config.iscsi_icd_start[ulp_num]) / PAGE_SIZE;
+ for (i = 0; i < mem_descr->num_elements; i++) {
+ hwi_build_be_sgl_arr(phba, pm_arr, &sgl);
+ status = be_cmd_iscsi_post_sgl_pages(&phba->ctrl, &sgl,
+ page_offset,
+ (pm_arr->size / PAGE_SIZE));
+ page_offset += pm_arr->size / PAGE_SIZE;
+ if (status != 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : post sgl failed.\n");
+ return status;
+ }
+ pm_arr++;
+ }
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : POSTED PAGES\n");
+ return 0;
+}
+
+static void be_queue_free(struct beiscsi_hba *phba, struct be_queue_info *q)
+{
+ struct be_dma_mem *mem = &q->dma_mem;
+ if (mem->va) {
+ dma_free_coherent(&phba->pcidev->dev, mem->size,
+ mem->va, mem->dma);
+ mem->va = NULL;
+ }
+}
+
+static int be_queue_alloc(struct beiscsi_hba *phba, struct be_queue_info *q,
+ u16 len, u16 entry_size)
+{
+ struct be_dma_mem *mem = &q->dma_mem;
+
+ memset(q, 0, sizeof(*q));
+ q->len = len;
+ q->entry_size = entry_size;
+ mem->size = len * entry_size;
+ mem->va = dma_alloc_coherent(&phba->pcidev->dev, mem->size, &mem->dma,
+ GFP_KERNEL);
+ if (!mem->va)
+ return -ENOMEM;
+ return 0;
+}
+
+static int
+beiscsi_create_wrb_rings(struct beiscsi_hba *phba,
+ struct hwi_context_memory *phwi_context,
+ struct hwi_controller *phwi_ctrlr)
+{
+ unsigned int num_wrb_rings;
+ u64 pa_addr_lo;
+ unsigned int idx, num, i, ulp_num;
+ struct mem_array *pwrb_arr;
+ void *wrb_vaddr;
+ struct be_dma_mem sgl;
+ struct be_mem_descriptor *mem_descr;
+ struct hwi_wrb_context *pwrb_context;
+ int status;
+ uint8_t ulp_count = 0, ulp_base_num = 0;
+ uint16_t cid_count_ulp[BEISCSI_ULP_COUNT] = { 0 };
+
+ idx = 0;
+ mem_descr = phba->init_mem;
+ mem_descr += HWI_MEM_WRB;
+ pwrb_arr = kmalloc_array(phba->params.cxns_per_ctrl,
+ sizeof(*pwrb_arr),
+ GFP_KERNEL);
+ if (!pwrb_arr) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : Memory alloc failed in create wrb ring.\n");
+ return -ENOMEM;
+ }
+ wrb_vaddr = mem_descr->mem_array[idx].virtual_address;
+ pa_addr_lo = mem_descr->mem_array[idx].bus_address.u.a64.address;
+ num_wrb_rings = mem_descr->mem_array[idx].size /
+ (phba->params.wrbs_per_cxn * sizeof(struct iscsi_wrb));
+
+ for (num = 0; num < phba->params.cxns_per_ctrl; num++) {
+ if (num_wrb_rings) {
+ pwrb_arr[num].virtual_address = wrb_vaddr;
+ pwrb_arr[num].bus_address.u.a64.address = pa_addr_lo;
+ pwrb_arr[num].size = phba->params.wrbs_per_cxn *
+ sizeof(struct iscsi_wrb);
+ wrb_vaddr += pwrb_arr[num].size;
+ pa_addr_lo += pwrb_arr[num].size;
+ num_wrb_rings--;
+ } else {
+ idx++;
+ wrb_vaddr = mem_descr->mem_array[idx].virtual_address;
+ pa_addr_lo = mem_descr->mem_array[idx].
+ bus_address.u.a64.address;
+ num_wrb_rings = mem_descr->mem_array[idx].size /
+ (phba->params.wrbs_per_cxn *
+ sizeof(struct iscsi_wrb));
+ pwrb_arr[num].virtual_address = wrb_vaddr;
+ pwrb_arr[num].bus_address.u.a64.address = pa_addr_lo;
+ pwrb_arr[num].size = phba->params.wrbs_per_cxn *
+ sizeof(struct iscsi_wrb);
+ wrb_vaddr += pwrb_arr[num].size;
+ pa_addr_lo += pwrb_arr[num].size;
+ num_wrb_rings--;
+ }
+ }
+
+ /* Get the ULP Count */
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
+ if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
+ ulp_count++;
+ ulp_base_num = ulp_num;
+ cid_count_ulp[ulp_num] =
+ BEISCSI_GET_CID_COUNT(phba, ulp_num);
+ }
+
+ for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
+ if (ulp_count > 1) {
+ ulp_base_num = (ulp_base_num + 1) % BEISCSI_ULP_COUNT;
+
+ if (!cid_count_ulp[ulp_base_num])
+ ulp_base_num = (ulp_base_num + 1) %
+ BEISCSI_ULP_COUNT;
+
+ cid_count_ulp[ulp_base_num]--;
+ }
+
+
+ hwi_build_be_sgl_by_offset(phba, &pwrb_arr[i], &sgl);
+ status = be_cmd_wrbq_create(&phba->ctrl, &sgl,
+ &phwi_context->be_wrbq[i],
+ &phwi_ctrlr->wrb_context[i],
+ ulp_base_num);
+ if (status != 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : wrbq create failed.");
+ kfree(pwrb_arr);
+ return status;
+ }
+ pwrb_context = &phwi_ctrlr->wrb_context[i];
+ BE_SET_CID_TO_CRI(i, pwrb_context->cid);
+ }
+ kfree(pwrb_arr);
+ return 0;
+}
+
+static void free_wrb_handles(struct beiscsi_hba *phba)
+{
+ unsigned int index;
+ struct hwi_controller *phwi_ctrlr;
+ struct hwi_wrb_context *pwrb_context;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ for (index = 0; index < phba->params.cxns_per_ctrl; index++) {
+ pwrb_context = &phwi_ctrlr->wrb_context[index];
+ kfree(pwrb_context->pwrb_handle_base);
+ kfree(pwrb_context->pwrb_handle_basestd);
+ }
+}
+
+static void be_mcc_queues_destroy(struct beiscsi_hba *phba)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_dma_mem *ptag_mem;
+ struct be_queue_info *q;
+ int i, tag;
+
+ q = &phba->ctrl.mcc_obj.q;
+ for (i = 0; i < MAX_MCC_CMD; i++) {
+ tag = i + 1;
+ if (!test_bit(MCC_TAG_STATE_RUNNING,
+ &ctrl->ptag_state[tag].tag_state))
+ continue;
+
+ if (test_bit(MCC_TAG_STATE_TIMEOUT,
+ &ctrl->ptag_state[tag].tag_state)) {
+ ptag_mem = &ctrl->ptag_state[tag].tag_mem_state;
+ if (ptag_mem->size) {
+ dma_free_coherent(&ctrl->pdev->dev,
+ ptag_mem->size,
+ ptag_mem->va,
+ ptag_mem->dma);
+ ptag_mem->size = 0;
+ }
+ continue;
+ }
+ /**
+ * If MCC is still active and waiting then wake up the process.
+ * We are here only because port is going offline. The process
+ * sees that (BEISCSI_HBA_ONLINE is cleared) and EIO error is
+ * returned for the operation and allocated memory cleaned up.
+ */
+ if (waitqueue_active(&ctrl->mcc_wait[tag])) {
+ ctrl->mcc_tag_status[tag] = MCC_STATUS_FAILED;
+ ctrl->mcc_tag_status[tag] |= CQE_VALID_MASK;
+ wake_up_interruptible(&ctrl->mcc_wait[tag]);
+ /*
+ * Control tag info gets reinitialized in enable
+ * so wait for the process to clear running state.
+ */
+ while (test_bit(MCC_TAG_STATE_RUNNING,
+ &ctrl->ptag_state[tag].tag_state))
+ schedule_timeout_uninterruptible(HZ);
+ }
+ /**
+ * For MCC with tag_states MCC_TAG_STATE_ASYNC and
+ * MCC_TAG_STATE_IGNORE nothing needs to done.
+ */
+ }
+ if (q->created) {
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_MCCQ);
+ be_queue_free(phba, q);
+ }
+
+ q = &phba->ctrl.mcc_obj.cq;
+ if (q->created) {
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ);
+ be_queue_free(phba, q);
+ }
+}
+
+static int be_mcc_queues_create(struct beiscsi_hba *phba,
+ struct hwi_context_memory *phwi_context)
+{
+ struct be_queue_info *q, *cq;
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+
+ /* Alloc MCC compl queue */
+ cq = &phba->ctrl.mcc_obj.cq;
+ if (be_queue_alloc(phba, cq, MCC_CQ_LEN,
+ sizeof(struct be_mcc_compl)))
+ goto err;
+ /* Ask BE to create MCC compl queue; */
+ if (phba->pcidev->msix_enabled) {
+ if (beiscsi_cmd_cq_create(ctrl, cq,
+ &phwi_context->be_eq[phba->num_cpus].q,
+ false, true, 0))
+ goto mcc_cq_free;
+ } else {
+ if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq[0].q,
+ false, true, 0))
+ goto mcc_cq_free;
+ }
+
+ /* Alloc MCC queue */
+ q = &phba->ctrl.mcc_obj.q;
+ if (be_queue_alloc(phba, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
+ goto mcc_cq_destroy;
+
+ /* Ask BE to create MCC queue */
+ if (beiscsi_cmd_mccq_create(phba, q, cq))
+ goto mcc_q_free;
+
+ return 0;
+
+mcc_q_free:
+ be_queue_free(phba, q);
+mcc_cq_destroy:
+ beiscsi_cmd_q_destroy(ctrl, cq, QTYPE_CQ);
+mcc_cq_free:
+ be_queue_free(phba, cq);
+err:
+ return -ENOMEM;
+}
+
+static void be2iscsi_enable_msix(struct beiscsi_hba *phba)
+{
+ int nvec = 1;
+
+ switch (phba->generation) {
+ case BE_GEN2:
+ case BE_GEN3:
+ nvec = BEISCSI_MAX_NUM_CPUS + 1;
+ break;
+ case BE_GEN4:
+ nvec = phba->fw_config.eqid_count;
+ break;
+ default:
+ nvec = 2;
+ break;
+ }
+
+ /* if eqid_count == 1 fall back to INTX */
+ if (enable_msix && nvec > 1) {
+ struct irq_affinity desc = { .post_vectors = 1 };
+
+ if (pci_alloc_irq_vectors_affinity(phba->pcidev, 2, nvec,
+ PCI_IRQ_MSIX | PCI_IRQ_AFFINITY, &desc) < 0) {
+ phba->num_cpus = nvec - 1;
+ return;
+ }
+ }
+
+ phba->num_cpus = 1;
+}
+
+static void hwi_purge_eq(struct beiscsi_hba *phba)
+{
+ struct hwi_controller *phwi_ctrlr;
+ struct hwi_context_memory *phwi_context;
+ struct be_queue_info *eq;
+ struct be_eq_entry *eqe = NULL;
+ int i, eq_msix;
+ unsigned int num_processed;
+
+ if (beiscsi_hba_in_error(phba))
+ return;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+ if (phba->pcidev->msix_enabled)
+ eq_msix = 1;
+ else
+ eq_msix = 0;
+
+ for (i = 0; i < (phba->num_cpus + eq_msix); i++) {
+ eq = &phwi_context->be_eq[i].q;
+ eqe = queue_tail_node(eq);
+ num_processed = 0;
+ while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
+ & EQE_VALID_MASK) {
+ AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
+ queue_tail_inc(eq);
+ eqe = queue_tail_node(eq);
+ num_processed++;
+ }
+
+ if (num_processed)
+ hwi_ring_eq_db(phba, eq->id, 1, num_processed, 1, 1);
+ }
+}
+
+static void hwi_cleanup_port(struct beiscsi_hba *phba)
+{
+ struct be_queue_info *q;
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct hwi_controller *phwi_ctrlr;
+ struct hwi_context_memory *phwi_context;
+ int i, eq_for_mcc, ulp_num;
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
+ if (test_bit(ulp_num, &phba->fw_config.ulp_supported))
+ beiscsi_cmd_iscsi_cleanup(phba, ulp_num);
+
+ /**
+ * Purge all EQ entries that may have been left out. This is to
+ * workaround a problem we've seen occasionally where driver gets an
+ * interrupt with EQ entry bit set after stopping the controller.
+ */
+ hwi_purge_eq(phba);
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+
+ be_cmd_iscsi_remove_template_hdr(ctrl);
+
+ for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
+ q = &phwi_context->be_wrbq[i];
+ if (q->created)
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_WRBQ);
+ }
+ kfree(phwi_context->be_wrbq);
+ free_wrb_handles(phba);
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+ if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
+
+ q = &phwi_context->be_def_hdrq[ulp_num];
+ if (q->created)
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
+
+ q = &phwi_context->be_def_dataq[ulp_num];
+ if (q->created)
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
+ }
+ }
+
+ beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL);
+
+ for (i = 0; i < (phba->num_cpus); i++) {
+ q = &phwi_context->be_cq[i];
+ if (q->created) {
+ be_queue_free(phba, q);
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ);
+ }
+ }
+
+ be_mcc_queues_destroy(phba);
+ if (phba->pcidev->msix_enabled)
+ eq_for_mcc = 1;
+ else
+ eq_for_mcc = 0;
+ for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) {
+ q = &phwi_context->be_eq[i].q;
+ if (q->created) {
+ be_queue_free(phba, q);
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ);
+ }
+ }
+ /* this ensures complete FW cleanup */
+ beiscsi_cmd_function_reset(phba);
+ /* last communication, indicate driver is unloading */
+ beiscsi_cmd_special_wrb(&phba->ctrl, 0);
+}
+
+static int hwi_init_port(struct beiscsi_hba *phba)
+{
+ struct hwi_controller *phwi_ctrlr;
+ struct hwi_context_memory *phwi_context;
+ unsigned int def_pdu_ring_sz;
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ int status, ulp_num;
+ u16 nbufs;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+ /* set port optic state to unknown */
+ phba->optic_state = 0xff;
+
+ status = beiscsi_create_eqs(phba, phwi_context);
+ if (status != 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : EQ not created\n");
+ goto error;
+ }
+
+ status = be_mcc_queues_create(phba, phwi_context);
+ if (status != 0)
+ goto error;
+
+ status = beiscsi_check_supported_fw(ctrl, phba);
+ if (status != 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : Unsupported fw version\n");
+ goto error;
+ }
+
+ status = beiscsi_create_cqs(phba, phwi_context);
+ if (status != 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : CQ not created\n");
+ goto error;
+ }
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+ if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
+ nbufs = phwi_context->pasync_ctx[ulp_num]->num_entries;
+ def_pdu_ring_sz = nbufs * sizeof(struct phys_addr);
+
+ status = beiscsi_create_def_hdr(phba, phwi_context,
+ phwi_ctrlr,
+ def_pdu_ring_sz,
+ ulp_num);
+ if (status != 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : Default Header not created for ULP : %d\n",
+ ulp_num);
+ goto error;
+ }
+
+ status = beiscsi_create_def_data(phba, phwi_context,
+ phwi_ctrlr,
+ def_pdu_ring_sz,
+ ulp_num);
+ if (status != 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : Default Data not created for ULP : %d\n",
+ ulp_num);
+ goto error;
+ }
+ /**
+ * Now that the default PDU rings have been created,
+ * let EP know about it.
+ */
+ beiscsi_hdq_post_handles(phba, BEISCSI_DEFQ_HDR,
+ ulp_num, nbufs);
+ beiscsi_hdq_post_handles(phba, BEISCSI_DEFQ_DATA,
+ ulp_num, nbufs);
+ }
+ }
+
+ status = beiscsi_post_pages(phba);
+ if (status != 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : Post SGL Pages Failed\n");
+ goto error;
+ }
+
+ status = beiscsi_post_template_hdr(phba);
+ if (status != 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : Template HDR Posting for CXN Failed\n");
+ }
+
+ status = beiscsi_create_wrb_rings(phba, phwi_context, phwi_ctrlr);
+ if (status != 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : WRB Rings not created\n");
+ goto error;
+ }
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+ uint16_t async_arr_idx = 0;
+
+ if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
+ uint16_t cri = 0;
+ struct hd_async_context *pasync_ctx;
+
+ pasync_ctx = HWI_GET_ASYNC_PDU_CTX(
+ phwi_ctrlr, ulp_num);
+ for (cri = 0; cri <
+ phba->params.cxns_per_ctrl; cri++) {
+ if (ulp_num == BEISCSI_GET_ULP_FROM_CRI
+ (phwi_ctrlr, cri))
+ pasync_ctx->cid_to_async_cri_map[
+ phwi_ctrlr->wrb_context[cri].cid] =
+ async_arr_idx++;
+ }
+ }
+ }
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : hwi_init_port success\n");
+ return 0;
+
+error:
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : hwi_init_port failed");
+ hwi_cleanup_port(phba);
+ return status;
+}
+
+static int hwi_init_controller(struct beiscsi_hba *phba)
+{
+ struct hwi_controller *phwi_ctrlr;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ if (1 == phba->init_mem[HWI_MEM_ADDN_CONTEXT].num_elements) {
+ phwi_ctrlr->phwi_ctxt = (struct hwi_context_memory *)phba->
+ init_mem[HWI_MEM_ADDN_CONTEXT].mem_array[0].virtual_address;
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : phwi_ctrlr->phwi_ctxt=%p\n",
+ phwi_ctrlr->phwi_ctxt);
+ } else {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : HWI_MEM_ADDN_CONTEXT is more "
+ "than one element.Failing to load\n");
+ return -ENOMEM;
+ }
+
+ iscsi_init_global_templates(phba);
+ if (beiscsi_init_wrb_handle(phba))
+ return -ENOMEM;
+
+ if (hwi_init_async_pdu_ctx(phba)) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : hwi_init_async_pdu_ctx failed\n");
+ return -ENOMEM;
+ }
+
+ if (hwi_init_port(phba) != 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : hwi_init_controller failed\n");
+
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+static void beiscsi_free_mem(struct beiscsi_hba *phba)
+{
+ struct be_mem_descriptor *mem_descr;
+ int i, j;
+
+ mem_descr = phba->init_mem;
+ for (i = 0; i < SE_MEM_MAX; i++) {
+ for (j = mem_descr->num_elements; j > 0; j--) {
+ dma_free_coherent(&phba->pcidev->dev,
+ mem_descr->mem_array[j - 1].size,
+ mem_descr->mem_array[j - 1].virtual_address,
+ (unsigned long)mem_descr->mem_array[j - 1].
+ bus_address.u.a64.address);
+ }
+
+ kfree(mem_descr->mem_array);
+ mem_descr++;
+ }
+ kfree(phba->init_mem);
+ kfree(phba->phwi_ctrlr->wrb_context);
+ kfree(phba->phwi_ctrlr);
+}
+
+static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
+{
+ struct be_mem_descriptor *mem_descr_sglh, *mem_descr_sg;
+ struct sgl_handle *psgl_handle;
+ struct iscsi_sge *pfrag;
+ unsigned int arr_index, i, idx;
+ unsigned int ulp_icd_start, ulp_num = 0;
+
+ phba->io_sgl_hndl_avbl = 0;
+ phba->eh_sgl_hndl_avbl = 0;
+
+ mem_descr_sglh = phba->init_mem;
+ mem_descr_sglh += HWI_MEM_SGLH;
+ if (1 == mem_descr_sglh->num_elements) {
+ phba->io_sgl_hndl_base = kcalloc(phba->params.ios_per_ctrl,
+ sizeof(struct sgl_handle *),
+ GFP_KERNEL);
+ if (!phba->io_sgl_hndl_base) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : Mem Alloc Failed. Failing to load\n");
+ return -ENOMEM;
+ }
+ phba->eh_sgl_hndl_base =
+ kcalloc(phba->params.icds_per_ctrl -
+ phba->params.ios_per_ctrl,
+ sizeof(struct sgl_handle *), GFP_KERNEL);
+ if (!phba->eh_sgl_hndl_base) {
+ kfree(phba->io_sgl_hndl_base);
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : Mem Alloc Failed. Failing to load\n");
+ return -ENOMEM;
+ }
+ } else {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : HWI_MEM_SGLH is more than one element."
+ "Failing to load\n");
+ return -ENOMEM;
+ }
+
+ arr_index = 0;
+ idx = 0;
+ while (idx < mem_descr_sglh->num_elements) {
+ psgl_handle = mem_descr_sglh->mem_array[idx].virtual_address;
+
+ for (i = 0; i < (mem_descr_sglh->mem_array[idx].size /
+ sizeof(struct sgl_handle)); i++) {
+ if (arr_index < phba->params.ios_per_ctrl) {
+ phba->io_sgl_hndl_base[arr_index] = psgl_handle;
+ phba->io_sgl_hndl_avbl++;
+ arr_index++;
+ } else {
+ phba->eh_sgl_hndl_base[arr_index -
+ phba->params.ios_per_ctrl] =
+ psgl_handle;
+ arr_index++;
+ phba->eh_sgl_hndl_avbl++;
+ }
+ psgl_handle++;
+ }
+ idx++;
+ }
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : phba->io_sgl_hndl_avbl=%d "
+ "phba->eh_sgl_hndl_avbl=%d\n",
+ phba->io_sgl_hndl_avbl,
+ phba->eh_sgl_hndl_avbl);
+
+ mem_descr_sg = phba->init_mem;
+ mem_descr_sg += HWI_MEM_SGE;
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "\n BM_%d : mem_descr_sg->num_elements=%d\n",
+ mem_descr_sg->num_elements);
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
+ if (test_bit(ulp_num, &phba->fw_config.ulp_supported))
+ break;
+
+ ulp_icd_start = phba->fw_config.iscsi_icd_start[ulp_num];
+
+ arr_index = 0;
+ idx = 0;
+ while (idx < mem_descr_sg->num_elements) {
+ pfrag = mem_descr_sg->mem_array[idx].virtual_address;
+
+ for (i = 0;
+ i < (mem_descr_sg->mem_array[idx].size) /
+ (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io);
+ i++) {
+ if (arr_index < phba->params.ios_per_ctrl)
+ psgl_handle = phba->io_sgl_hndl_base[arr_index];
+ else
+ psgl_handle = phba->eh_sgl_hndl_base[arr_index -
+ phba->params.ios_per_ctrl];
+ psgl_handle->pfrag = pfrag;
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, pfrag, 0);
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, pfrag, 0);
+ pfrag += phba->params.num_sge_per_io;
+ psgl_handle->sgl_index = ulp_icd_start + arr_index++;
+ }
+ idx++;
+ }
+ phba->io_sgl_free_index = 0;
+ phba->io_sgl_alloc_index = 0;
+ phba->eh_sgl_free_index = 0;
+ phba->eh_sgl_alloc_index = 0;
+ return 0;
+}
+
+static int hba_setup_cid_tbls(struct beiscsi_hba *phba)
+{
+ int ret;
+ uint16_t i, ulp_num;
+ struct ulp_cid_info *ptr_cid_info = NULL;
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+ if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
+ ptr_cid_info = kzalloc(sizeof(struct ulp_cid_info),
+ GFP_KERNEL);
+
+ if (!ptr_cid_info) {
+ ret = -ENOMEM;
+ goto free_memory;
+ }
+
+ /* Allocate memory for CID array */
+ ptr_cid_info->cid_array =
+ kcalloc(BEISCSI_GET_CID_COUNT(phba, ulp_num),
+ sizeof(*ptr_cid_info->cid_array),
+ GFP_KERNEL);
+ if (!ptr_cid_info->cid_array) {
+ kfree(ptr_cid_info);
+ ptr_cid_info = NULL;
+ ret = -ENOMEM;
+
+ goto free_memory;
+ }
+ ptr_cid_info->avlbl_cids = BEISCSI_GET_CID_COUNT(
+ phba, ulp_num);
+
+ /* Save the cid_info_array ptr */
+ phba->cid_array_info[ulp_num] = ptr_cid_info;
+ }
+ }
+ phba->ep_array = kcalloc(phba->params.cxns_per_ctrl,
+ sizeof(struct iscsi_endpoint *),
+ GFP_KERNEL);
+ if (!phba->ep_array) {
+ ret = -ENOMEM;
+
+ goto free_memory;
+ }
+
+ phba->conn_table = kcalloc(phba->params.cxns_per_ctrl,
+ sizeof(struct beiscsi_conn *),
+ GFP_KERNEL);
+ if (!phba->conn_table) {
+ kfree(phba->ep_array);
+ phba->ep_array = NULL;
+ ret = -ENOMEM;
+
+ goto free_memory;
+ }
+
+ for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
+ ulp_num = phba->phwi_ctrlr->wrb_context[i].ulp_num;
+
+ ptr_cid_info = phba->cid_array_info[ulp_num];
+ ptr_cid_info->cid_array[ptr_cid_info->cid_alloc++] =
+ phba->phwi_ctrlr->wrb_context[i].cid;
+
+ }
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+ if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
+ ptr_cid_info = phba->cid_array_info[ulp_num];
+
+ ptr_cid_info->cid_alloc = 0;
+ ptr_cid_info->cid_free = 0;
+ }
+ }
+ return 0;
+
+free_memory:
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+ if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
+ ptr_cid_info = phba->cid_array_info[ulp_num];
+
+ if (ptr_cid_info) {
+ kfree(ptr_cid_info->cid_array);
+ kfree(ptr_cid_info);
+ phba->cid_array_info[ulp_num] = NULL;
+ }
+ }
+ }
+
+ return ret;
+}
+
+static void hwi_enable_intr(struct beiscsi_hba *phba)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct hwi_controller *phwi_ctrlr;
+ struct hwi_context_memory *phwi_context;
+ struct be_queue_info *eq;
+ u8 __iomem *addr;
+ u32 reg, i;
+ u32 enabled;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+
+ addr = (u8 __iomem *) ((u8 __iomem *) ctrl->pcicfg +
+ PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET);
+ reg = ioread32(addr);
+
+ enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
+ if (!enabled) {
+ reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : reg =x%08x addr=%p\n", reg, addr);
+ iowrite32(reg, addr);
+ }
+
+ if (!phba->pcidev->msix_enabled) {
+ eq = &phwi_context->be_eq[0].q;
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : eq->id=%d\n", eq->id);
+
+ hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1);
+ } else {
+ for (i = 0; i <= phba->num_cpus; i++) {
+ eq = &phwi_context->be_eq[i].q;
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : eq->id=%d\n", eq->id);
+ hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1);
+ }
+ }
+}
+
+static void hwi_disable_intr(struct beiscsi_hba *phba)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+
+ u8 __iomem *addr = ctrl->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
+ u32 reg = ioread32(addr);
+
+ u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
+ if (enabled) {
+ reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
+ iowrite32(reg, addr);
+ } else
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+ "BM_%d : In hwi_disable_intr, Already Disabled\n");
+}
+
+static int beiscsi_init_port(struct beiscsi_hba *phba)
+{
+ int ret;
+
+ ret = hwi_init_controller(phba);
+ if (ret < 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : init controller failed\n");
+ return ret;
+ }
+ ret = beiscsi_init_sgl_handle(phba);
+ if (ret < 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : init sgl handles failed\n");
+ goto cleanup_port;
+ }
+
+ ret = hba_setup_cid_tbls(phba);
+ if (ret < 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : setup CID table failed\n");
+ kfree(phba->io_sgl_hndl_base);
+ kfree(phba->eh_sgl_hndl_base);
+ goto cleanup_port;
+ }
+ return ret;
+
+cleanup_port:
+ hwi_cleanup_port(phba);
+ return ret;
+}
+
+static void beiscsi_cleanup_port(struct beiscsi_hba *phba)
+{
+ struct ulp_cid_info *ptr_cid_info = NULL;
+ int ulp_num;
+
+ kfree(phba->io_sgl_hndl_base);
+ kfree(phba->eh_sgl_hndl_base);
+ kfree(phba->ep_array);
+ kfree(phba->conn_table);
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+ if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
+ ptr_cid_info = phba->cid_array_info[ulp_num];
+
+ if (ptr_cid_info) {
+ kfree(ptr_cid_info->cid_array);
+ kfree(ptr_cid_info);
+ phba->cid_array_info[ulp_num] = NULL;
+ }
+ }
+ }
+}
+
+/**
+ * beiscsi_free_mgmt_task_handles()- Free driver CXN resources
+ * @beiscsi_conn: ptr to the conn to be cleaned up
+ * @task: ptr to iscsi_task resource to be freed.
+ *
+ * Free driver mgmt resources binded to CXN.
+ **/
+void
+beiscsi_free_mgmt_task_handles(struct beiscsi_conn *beiscsi_conn,
+ struct iscsi_task *task)
+{
+ struct beiscsi_io_task *io_task;
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
+ struct hwi_wrb_context *pwrb_context;
+ struct hwi_controller *phwi_ctrlr;
+ uint16_t cri_index = BE_GET_CRI_FROM_CID(
+ beiscsi_conn->beiscsi_conn_cid);
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
+
+ io_task = task->dd_data;
+
+ if (io_task->pwrb_handle) {
+ free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle);
+ io_task->pwrb_handle = NULL;
+ }
+
+ if (io_task->psgl_handle) {
+ free_mgmt_sgl_handle(phba, io_task->psgl_handle);
+ io_task->psgl_handle = NULL;
+ }
+
+ if (io_task->mtask_addr) {
+ dma_unmap_single(&phba->pcidev->dev,
+ io_task->mtask_addr,
+ io_task->mtask_data_count,
+ DMA_TO_DEVICE);
+ io_task->mtask_addr = 0;
+ }
+}
+
+/**
+ * beiscsi_cleanup_task()- Free driver resources of the task
+ * @task: ptr to the iscsi task
+ *
+ **/
+static void beiscsi_cleanup_task(struct iscsi_task *task)
+{
+ struct beiscsi_io_task *io_task = task->dd_data;
+ struct iscsi_conn *conn = task->conn;
+ struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
+ struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess;
+ struct hwi_wrb_context *pwrb_context;
+ struct hwi_controller *phwi_ctrlr;
+ uint16_t cri_index = BE_GET_CRI_FROM_CID(
+ beiscsi_conn->beiscsi_conn_cid);
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
+
+ if (io_task->cmd_bhs) {
+ dma_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs,
+ io_task->bhs_pa.u.a64.address);
+ io_task->cmd_bhs = NULL;
+ task->hdr = NULL;
+ }
+
+ if (task->sc) {
+ if (io_task->pwrb_handle) {
+ free_wrb_handle(phba, pwrb_context,
+ io_task->pwrb_handle);
+ io_task->pwrb_handle = NULL;
+ }
+
+ if (io_task->psgl_handle) {
+ free_io_sgl_handle(phba, io_task->psgl_handle);
+ io_task->psgl_handle = NULL;
+ }
+
+ if (io_task->scsi_cmnd) {
+ if (io_task->num_sg)
+ scsi_dma_unmap(io_task->scsi_cmnd);
+ io_task->scsi_cmnd = NULL;
+ }
+ } else {
+ if (!beiscsi_conn->login_in_progress)
+ beiscsi_free_mgmt_task_handles(beiscsi_conn, task);
+ }
+}
+
+void
+beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn,
+ struct beiscsi_offload_params *params)
+{
+ struct wrb_handle *pwrb_handle;
+ struct hwi_wrb_context *pwrb_context = NULL;
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
+ struct iscsi_task *task = beiscsi_conn->task;
+ struct iscsi_session *session = task->conn->session;
+ u32 doorbell = 0;
+
+ /*
+ * We can always use 0 here because it is reserved by libiscsi for
+ * login/startup related tasks.
+ */
+ beiscsi_conn->login_in_progress = 0;
+ spin_lock_bh(&session->back_lock);
+ beiscsi_cleanup_task(task);
+ spin_unlock_bh(&session->back_lock);
+
+ pwrb_handle = alloc_wrb_handle(phba, beiscsi_conn->beiscsi_conn_cid,
+ &pwrb_context);
+
+ /* Check for the adapter family */
+ if (is_chip_be2_be3r(phba))
+ beiscsi_offload_cxn_v0(params, pwrb_handle,
+ phba->init_mem,
+ pwrb_context);
+ else
+ beiscsi_offload_cxn_v2(params, pwrb_handle,
+ pwrb_context);
+
+ be_dws_le_to_cpu(pwrb_handle->pwrb,
+ sizeof(struct iscsi_target_context_update_wrb));
+
+ doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
+ doorbell |= (pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK)
+ << DB_DEF_PDU_WRB_INDEX_SHIFT;
+ doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
+ iowrite32(doorbell, phba->db_va +
+ beiscsi_conn->doorbell_offset);
+
+ /*
+ * There is no completion for CONTEXT_UPDATE. The completion of next
+ * WRB posted guarantees FW's processing and DMA'ing of it.
+ * Use beiscsi_put_wrb_handle to put it back in the pool which makes
+ * sure zero'ing or reuse of the WRB only after wrbs_per_cxn.
+ */
+ beiscsi_put_wrb_handle(pwrb_context, pwrb_handle,
+ phba->params.wrbs_per_cxn);
+ beiscsi_log(phba, KERN_INFO,
+ BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+ "BM_%d : put CONTEXT_UPDATE pwrb_handle=%p free_index=0x%x wrb_handles_available=%d\n",
+ pwrb_handle, pwrb_context->free_index,
+ pwrb_context->wrb_handles_available);
+}
+
+static void beiscsi_parse_pdu(struct iscsi_conn *conn, itt_t itt,
+ int *index, int *age)
+{
+ *index = (int)itt;
+ if (age)
+ *age = conn->session->age;
+}
+
+/**
+ * beiscsi_alloc_pdu - allocates pdu and related resources
+ * @task: libiscsi task
+ * @opcode: opcode of pdu for task
+ *
+ * This is called with the session lock held. It will allocate
+ * the wrb and sgl if needed for the command. And it will prep
+ * the pdu's itt. beiscsi_parse_pdu will later translate
+ * the pdu itt to the libiscsi task itt.
+ */
+static int beiscsi_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
+{
+ struct beiscsi_io_task *io_task = task->dd_data;
+ struct iscsi_conn *conn = task->conn;
+ struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
+ struct hwi_wrb_context *pwrb_context;
+ struct hwi_controller *phwi_ctrlr;
+ itt_t itt;
+ uint16_t cri_index = 0;
+ struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess;
+ dma_addr_t paddr;
+
+ io_task->cmd_bhs = dma_pool_alloc(beiscsi_sess->bhs_pool,
+ GFP_ATOMIC, &paddr);
+ if (!io_task->cmd_bhs)
+ return -ENOMEM;
+ io_task->bhs_pa.u.a64.address = paddr;
+ io_task->libiscsi_itt = (itt_t)task->itt;
+ io_task->conn = beiscsi_conn;
+
+ task->hdr = (struct iscsi_hdr *)&io_task->cmd_bhs->iscsi_hdr;
+ task->hdr_max = sizeof(struct be_cmd_bhs);
+ io_task->psgl_handle = NULL;
+ io_task->pwrb_handle = NULL;
+
+ if (task->sc) {
+ io_task->psgl_handle = alloc_io_sgl_handle(phba);
+ if (!io_task->psgl_handle) {
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+ "BM_%d : Alloc of IO_SGL_ICD Failed "
+ "for the CID : %d\n",
+ beiscsi_conn->beiscsi_conn_cid);
+ goto free_hndls;
+ }
+ io_task->pwrb_handle = alloc_wrb_handle(phba,
+ beiscsi_conn->beiscsi_conn_cid,
+ &io_task->pwrb_context);
+ if (!io_task->pwrb_handle) {
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+ "BM_%d : Alloc of WRB_HANDLE Failed "
+ "for the CID : %d\n",
+ beiscsi_conn->beiscsi_conn_cid);
+ goto free_io_hndls;
+ }
+ } else {
+ io_task->scsi_cmnd = NULL;
+ if ((opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN) {
+ beiscsi_conn->task = task;
+ if (!beiscsi_conn->login_in_progress) {
+ io_task->psgl_handle = (struct sgl_handle *)
+ alloc_mgmt_sgl_handle(phba);
+ if (!io_task->psgl_handle) {
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_IO |
+ BEISCSI_LOG_CONFIG,
+ "BM_%d : Alloc of MGMT_SGL_ICD Failed "
+ "for the CID : %d\n",
+ beiscsi_conn->beiscsi_conn_cid);
+ goto free_hndls;
+ }
+
+ beiscsi_conn->login_in_progress = 1;
+ beiscsi_conn->plogin_sgl_handle =
+ io_task->psgl_handle;
+ io_task->pwrb_handle =
+ alloc_wrb_handle(phba,
+ beiscsi_conn->beiscsi_conn_cid,
+ &io_task->pwrb_context);
+ if (!io_task->pwrb_handle) {
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_IO |
+ BEISCSI_LOG_CONFIG,
+ "BM_%d : Alloc of WRB_HANDLE Failed "
+ "for the CID : %d\n",
+ beiscsi_conn->beiscsi_conn_cid);
+ goto free_mgmt_hndls;
+ }
+ beiscsi_conn->plogin_wrb_handle =
+ io_task->pwrb_handle;
+
+ } else {
+ io_task->psgl_handle =
+ beiscsi_conn->plogin_sgl_handle;
+ io_task->pwrb_handle =
+ beiscsi_conn->plogin_wrb_handle;
+ }
+ } else {
+ io_task->psgl_handle = alloc_mgmt_sgl_handle(phba);
+ if (!io_task->psgl_handle) {
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_IO |
+ BEISCSI_LOG_CONFIG,
+ "BM_%d : Alloc of MGMT_SGL_ICD Failed "
+ "for the CID : %d\n",
+ beiscsi_conn->beiscsi_conn_cid);
+ goto free_hndls;
+ }
+ io_task->pwrb_handle =
+ alloc_wrb_handle(phba,
+ beiscsi_conn->beiscsi_conn_cid,
+ &io_task->pwrb_context);
+ if (!io_task->pwrb_handle) {
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+ "BM_%d : Alloc of WRB_HANDLE Failed "
+ "for the CID : %d\n",
+ beiscsi_conn->beiscsi_conn_cid);
+ goto free_mgmt_hndls;
+ }
+
+ }
+ }
+ itt = (itt_t) cpu_to_be32(((unsigned int)io_task->pwrb_handle->
+ wrb_index << 16) | (unsigned int)
+ (io_task->psgl_handle->sgl_index));
+ io_task->pwrb_handle->pio_handle = task;
+
+ io_task->cmd_bhs->iscsi_hdr.itt = itt;
+ return 0;
+
+free_io_hndls:
+ free_io_sgl_handle(phba, io_task->psgl_handle);
+ goto free_hndls;
+free_mgmt_hndls:
+ free_mgmt_sgl_handle(phba, io_task->psgl_handle);
+ io_task->psgl_handle = NULL;
+free_hndls:
+ phwi_ctrlr = phba->phwi_ctrlr;
+ cri_index = BE_GET_CRI_FROM_CID(
+ beiscsi_conn->beiscsi_conn_cid);
+ pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
+ if (io_task->pwrb_handle)
+ free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle);
+ io_task->pwrb_handle = NULL;
+ dma_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs,
+ io_task->bhs_pa.u.a64.address);
+ io_task->cmd_bhs = NULL;
+ return -ENOMEM;
+}
+static int beiscsi_iotask_v2(struct iscsi_task *task, struct scatterlist *sg,
+ unsigned int num_sg, unsigned int xferlen,
+ unsigned int writedir)
+{
+
+ struct beiscsi_io_task *io_task = task->dd_data;
+ struct iscsi_conn *conn = task->conn;
+ struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
+ struct iscsi_wrb *pwrb = NULL;
+ unsigned int doorbell = 0;
+
+ pwrb = io_task->pwrb_handle->pwrb;
+
+ io_task->bhs_len = sizeof(struct be_cmd_bhs);
+
+ if (writedir) {
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, type, pwrb,
+ INI_WR_CMD);
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, dsp, pwrb, 1);
+ } else {
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, type, pwrb,
+ INI_RD_CMD);
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, dsp, pwrb, 0);
+ }
+
+ io_task->wrb_type = AMAP_GET_BITS(struct amap_iscsi_wrb_v2,
+ type, pwrb);
+
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, lun, pwrb,
+ cpu_to_be16(*(unsigned short *)
+ &io_task->cmd_bhs->iscsi_hdr.lun));
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, r2t_exp_dtl, pwrb, xferlen);
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, wrb_idx, pwrb,
+ io_task->pwrb_handle->wrb_index);
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, cmdsn_itt, pwrb,
+ be32_to_cpu(task->cmdsn));
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sgl_idx, pwrb,
+ io_task->psgl_handle->sgl_index);
+
+ hwi_write_sgl_v2(pwrb, sg, num_sg, io_task);
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb, pwrb,
+ io_task->pwrb_handle->wrb_index);
+ if (io_task->pwrb_context->plast_wrb)
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb,
+ io_task->pwrb_context->plast_wrb,
+ io_task->pwrb_handle->wrb_index);
+ io_task->pwrb_context->plast_wrb = pwrb;
+
+ be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb));
+
+ doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
+ doorbell |= (io_task->pwrb_handle->wrb_index &
+ DB_DEF_PDU_WRB_INDEX_MASK) <<
+ DB_DEF_PDU_WRB_INDEX_SHIFT;
+ doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
+ iowrite32(doorbell, phba->db_va +
+ beiscsi_conn->doorbell_offset);
+ return 0;
+}
+
+static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg,
+ unsigned int num_sg, unsigned int xferlen,
+ unsigned int writedir)
+{
+
+ struct beiscsi_io_task *io_task = task->dd_data;
+ struct iscsi_conn *conn = task->conn;
+ struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
+ struct iscsi_wrb *pwrb = NULL;
+ unsigned int doorbell = 0;
+
+ pwrb = io_task->pwrb_handle->pwrb;
+ io_task->bhs_len = sizeof(struct be_cmd_bhs);
+
+ if (writedir) {
+ AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb,
+ INI_WR_CMD);
+ AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1);
+ } else {
+ AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb,
+ INI_RD_CMD);
+ AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0);
+ }
+
+ io_task->wrb_type = AMAP_GET_BITS(struct amap_iscsi_wrb,
+ type, pwrb);
+
+ AMAP_SET_BITS(struct amap_iscsi_wrb, lun, pwrb,
+ cpu_to_be16(*(unsigned short *)
+ &io_task->cmd_bhs->iscsi_hdr.lun));
+ AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, xferlen);
+ AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb,
+ io_task->pwrb_handle->wrb_index);
+ AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb,
+ be32_to_cpu(task->cmdsn));
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb,
+ io_task->psgl_handle->sgl_index);
+
+ hwi_write_sgl(pwrb, sg, num_sg, io_task);
+
+ AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb,
+ io_task->pwrb_handle->wrb_index);
+ if (io_task->pwrb_context->plast_wrb)
+ AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb,
+ io_task->pwrb_context->plast_wrb,
+ io_task->pwrb_handle->wrb_index);
+ io_task->pwrb_context->plast_wrb = pwrb;
+
+ be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb));
+
+ doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
+ doorbell |= (io_task->pwrb_handle->wrb_index &
+ DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT;
+ doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
+
+ iowrite32(doorbell, phba->db_va +
+ beiscsi_conn->doorbell_offset);
+ return 0;
+}
+
+static int beiscsi_mtask(struct iscsi_task *task)
+{
+ struct beiscsi_io_task *io_task = task->dd_data;
+ struct iscsi_conn *conn = task->conn;
+ struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
+ struct iscsi_wrb *pwrb = NULL;
+ unsigned int doorbell = 0;
+ unsigned int cid;
+ unsigned int pwrb_typeoffset = 0;
+ int ret = 0;
+
+ cid = beiscsi_conn->beiscsi_conn_cid;
+ pwrb = io_task->pwrb_handle->pwrb;
+
+ if (is_chip_be2_be3r(phba)) {
+ AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb,
+ be32_to_cpu(task->cmdsn));
+ AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb,
+ io_task->pwrb_handle->wrb_index);
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb,
+ io_task->psgl_handle->sgl_index);
+ AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb,
+ task->data_count);
+ AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb,
+ io_task->pwrb_handle->wrb_index);
+ if (io_task->pwrb_context->plast_wrb)
+ AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb,
+ io_task->pwrb_context->plast_wrb,
+ io_task->pwrb_handle->wrb_index);
+ io_task->pwrb_context->plast_wrb = pwrb;
+
+ pwrb_typeoffset = BE_WRB_TYPE_OFFSET;
+ } else {
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, cmdsn_itt, pwrb,
+ be32_to_cpu(task->cmdsn));
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, wrb_idx, pwrb,
+ io_task->pwrb_handle->wrb_index);
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sgl_idx, pwrb,
+ io_task->psgl_handle->sgl_index);
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, r2t_exp_dtl, pwrb,
+ task->data_count);
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb, pwrb,
+ io_task->pwrb_handle->wrb_index);
+ if (io_task->pwrb_context->plast_wrb)
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb,
+ io_task->pwrb_context->plast_wrb,
+ io_task->pwrb_handle->wrb_index);
+ io_task->pwrb_context->plast_wrb = pwrb;
+
+ pwrb_typeoffset = SKH_WRB_TYPE_OFFSET;
+ }
+
+
+ switch (task->hdr->opcode & ISCSI_OPCODE_MASK) {
+ case ISCSI_OP_LOGIN:
+ AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 1);
+ ADAPTER_SET_WRB_TYPE(pwrb, TGT_DM_CMD, pwrb_typeoffset);
+ ret = hwi_write_buffer(pwrb, task);
+ break;
+ case ISCSI_OP_NOOP_OUT:
+ if (task->hdr->ttt != ISCSI_RESERVED_TAG) {
+ ADAPTER_SET_WRB_TYPE(pwrb, TGT_DM_CMD, pwrb_typeoffset);
+ if (is_chip_be2_be3r(phba))
+ AMAP_SET_BITS(struct amap_iscsi_wrb,
+ dmsg, pwrb, 1);
+ else
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
+ dmsg, pwrb, 1);
+ } else {
+ ADAPTER_SET_WRB_TYPE(pwrb, INI_RD_CMD, pwrb_typeoffset);
+ if (is_chip_be2_be3r(phba))
+ AMAP_SET_BITS(struct amap_iscsi_wrb,
+ dmsg, pwrb, 0);
+ else
+ AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
+ dmsg, pwrb, 0);
+ }
+ ret = hwi_write_buffer(pwrb, task);
+ break;
+ case ISCSI_OP_TEXT:
+ ADAPTER_SET_WRB_TYPE(pwrb, TGT_DM_CMD, pwrb_typeoffset);
+ ret = hwi_write_buffer(pwrb, task);
+ break;
+ case ISCSI_OP_SCSI_TMFUNC:
+ ADAPTER_SET_WRB_TYPE(pwrb, INI_TMF_CMD, pwrb_typeoffset);
+ ret = hwi_write_buffer(pwrb, task);
+ break;
+ case ISCSI_OP_LOGOUT:
+ ADAPTER_SET_WRB_TYPE(pwrb, HWH_TYPE_LOGOUT, pwrb_typeoffset);
+ ret = hwi_write_buffer(pwrb, task);
+ break;
+
+ default:
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BM_%d : opcode =%d Not supported\n",
+ task->hdr->opcode & ISCSI_OPCODE_MASK);
+
+ return -EINVAL;
+ }
+
+ if (ret)
+ return ret;
+
+ /* Set the task type */
+ io_task->wrb_type = (is_chip_be2_be3r(phba)) ?
+ AMAP_GET_BITS(struct amap_iscsi_wrb, type, pwrb) :
+ AMAP_GET_BITS(struct amap_iscsi_wrb_v2, type, pwrb);
+
+ doorbell |= cid & DB_WRB_POST_CID_MASK;
+ doorbell |= (io_task->pwrb_handle->wrb_index &
+ DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT;
+ doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
+ iowrite32(doorbell, phba->db_va +
+ beiscsi_conn->doorbell_offset);
+ return 0;
+}
+
+static int beiscsi_task_xmit(struct iscsi_task *task)
+{
+ struct beiscsi_io_task *io_task = task->dd_data;
+ struct scsi_cmnd *sc = task->sc;
+ struct beiscsi_hba *phba;
+ struct scatterlist *sg;
+ int num_sg;
+ unsigned int writedir = 0, xferlen = 0;
+
+ phba = io_task->conn->phba;
+ /**
+ * HBA in error includes BEISCSI_HBA_FW_TIMEOUT. IO path might be
+ * operational if FW still gets heartbeat from EP FW. Is management
+ * path really needed to continue further?
+ */
+ if (!beiscsi_hba_is_online(phba))
+ return -EIO;
+
+ if (!io_task->conn->login_in_progress)
+ task->hdr->exp_statsn = 0;
+
+ if (!sc)
+ return beiscsi_mtask(task);
+
+ io_task->scsi_cmnd = sc;
+ io_task->num_sg = 0;
+ num_sg = scsi_dma_map(sc);
+ if (num_sg < 0) {
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_IO | BEISCSI_LOG_ISCSI,
+ "BM_%d : scsi_dma_map Failed "
+ "Driver_ITT : 0x%x ITT : 0x%x Xferlen : 0x%x\n",
+ be32_to_cpu(io_task->cmd_bhs->iscsi_hdr.itt),
+ io_task->libiscsi_itt, scsi_bufflen(sc));
+
+ return num_sg;
+ }
+ /**
+ * For scsi cmd task, check num_sg before unmapping in cleanup_task.
+ * For management task, cleanup_task checks mtask_addr before unmapping.
+ */
+ io_task->num_sg = num_sg;
+ xferlen = scsi_bufflen(sc);
+ sg = scsi_sglist(sc);
+ if (sc->sc_data_direction == DMA_TO_DEVICE)
+ writedir = 1;
+ else
+ writedir = 0;
+
+ return phba->iotask_fn(task, sg, num_sg, xferlen, writedir);
+}
+
+/**
+ * beiscsi_bsg_request - handle bsg request from ISCSI transport
+ * @job: job to handle
+ */
+static int beiscsi_bsg_request(struct bsg_job *job)
+{
+ struct Scsi_Host *shost;
+ struct beiscsi_hba *phba;
+ struct iscsi_bsg_request *bsg_req = job->request;
+ int rc = -EINVAL;
+ unsigned int tag;
+ struct be_dma_mem nonemb_cmd;
+ struct be_cmd_resp_hdr *resp;
+ struct iscsi_bsg_reply *bsg_reply = job->reply;
+ unsigned short status, extd_status;
+
+ shost = iscsi_job_to_shost(job);
+ phba = iscsi_host_priv(shost);
+
+ if (!beiscsi_hba_is_online(phba)) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BM_%d : HBA in error 0x%lx\n", phba->state);
+ return -ENXIO;
+ }
+
+ switch (bsg_req->msgcode) {
+ case ISCSI_BSG_HST_VENDOR:
+ nonemb_cmd.va = dma_alloc_coherent(&phba->ctrl.pdev->dev,
+ job->request_payload.payload_len,
+ &nonemb_cmd.dma, GFP_KERNEL);
+ if (nonemb_cmd.va == NULL) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BM_%d : Failed to allocate memory for "
+ "beiscsi_bsg_request\n");
+ return -ENOMEM;
+ }
+ tag = mgmt_vendor_specific_fw_cmd(&phba->ctrl, phba, job,
+ &nonemb_cmd);
+ if (!tag) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BM_%d : MBX Tag Allocation Failed\n");
+
+ dma_free_coherent(&phba->ctrl.pdev->dev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
+ return -EAGAIN;
+ }
+
+ rc = wait_event_interruptible_timeout(
+ phba->ctrl.mcc_wait[tag],
+ phba->ctrl.mcc_tag_status[tag],
+ msecs_to_jiffies(
+ BEISCSI_HOST_MBX_TIMEOUT));
+
+ if (!test_bit(BEISCSI_HBA_ONLINE, &phba->state)) {
+ clear_bit(MCC_TAG_STATE_RUNNING,
+ &phba->ctrl.ptag_state[tag].tag_state);
+ dma_free_coherent(&phba->ctrl.pdev->dev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
+ return -EIO;
+ }
+ extd_status = (phba->ctrl.mcc_tag_status[tag] &
+ CQE_STATUS_ADDL_MASK) >> CQE_STATUS_ADDL_SHIFT;
+ status = phba->ctrl.mcc_tag_status[tag] & CQE_STATUS_MASK;
+ free_mcc_wrb(&phba->ctrl, tag);
+ resp = (struct be_cmd_resp_hdr *)nonemb_cmd.va;
+ sg_copy_from_buffer(job->reply_payload.sg_list,
+ job->reply_payload.sg_cnt,
+ nonemb_cmd.va, (resp->response_length
+ + sizeof(*resp)));
+ bsg_reply->reply_payload_rcv_len = resp->response_length;
+ bsg_reply->result = status;
+ bsg_job_done(job, bsg_reply->result,
+ bsg_reply->reply_payload_rcv_len);
+ dma_free_coherent(&phba->ctrl.pdev->dev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
+ if (status || extd_status) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BM_%d : MBX Cmd Failed"
+ " status = %d extd_status = %d\n",
+ status, extd_status);
+
+ return -EIO;
+ } else {
+ rc = 0;
+ }
+ break;
+
+ default:
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BM_%d : Unsupported bsg command: 0x%x\n",
+ bsg_req->msgcode);
+ break;
+ }
+
+ return rc;
+}
+
+static void beiscsi_hba_attrs_init(struct beiscsi_hba *phba)
+{
+ /* Set the logging parameter */
+ beiscsi_log_enable_init(phba, beiscsi_log_enable);
+}
+
+void beiscsi_start_boot_work(struct beiscsi_hba *phba, unsigned int s_handle)
+{
+ if (phba->boot_struct.boot_kset)
+ return;
+
+ /* skip if boot work is already in progress */
+ if (test_and_set_bit(BEISCSI_HBA_BOOT_WORK, &phba->state))
+ return;
+
+ phba->boot_struct.retry = 3;
+ phba->boot_struct.tag = 0;
+ phba->boot_struct.s_handle = s_handle;
+ phba->boot_struct.action = BEISCSI_BOOT_GET_SHANDLE;
+ schedule_work(&phba->boot_work);
+}
+
+#define BEISCSI_SYSFS_ISCSI_BOOT_FLAGS 3
+/*
+ * beiscsi_show_boot_tgt_info()
+ * Boot flag info for iscsi-utilities
+ * Bit 0 Block valid flag
+ * Bit 1 Firmware booting selected
+ */
+static ssize_t beiscsi_show_boot_tgt_info(void *data, int type, char *buf)
+{
+ struct beiscsi_hba *phba = data;
+ struct mgmt_session_info *boot_sess = &phba->boot_struct.boot_sess;
+ struct mgmt_conn_info *boot_conn = &boot_sess->conn_list[0];
+ char *str = buf;
+ int rc = -EPERM;
+
+ switch (type) {
+ case ISCSI_BOOT_TGT_NAME:
+ rc = sprintf(buf, "%.*s\n",
+ (int)strlen(boot_sess->target_name),
+ (char *)&boot_sess->target_name);
+ break;
+ case ISCSI_BOOT_TGT_IP_ADDR:
+ if (boot_conn->dest_ipaddr.ip_type == BEISCSI_IP_TYPE_V4)
+ rc = sprintf(buf, "%pI4\n",
+ (char *)&boot_conn->dest_ipaddr.addr);
+ else
+ rc = sprintf(str, "%pI6\n",
+ (char *)&boot_conn->dest_ipaddr.addr);
+ break;
+ case ISCSI_BOOT_TGT_PORT:
+ rc = sprintf(str, "%d\n", boot_conn->dest_port);
+ break;
+
+ case ISCSI_BOOT_TGT_CHAP_NAME:
+ rc = sprintf(str, "%.*s\n",
+ boot_conn->negotiated_login_options.auth_data.chap.
+ target_chap_name_length,
+ (char *)&boot_conn->negotiated_login_options.
+ auth_data.chap.target_chap_name);
+ break;
+ case ISCSI_BOOT_TGT_CHAP_SECRET:
+ rc = sprintf(str, "%.*s\n",
+ boot_conn->negotiated_login_options.auth_data.chap.
+ target_secret_length,
+ (char *)&boot_conn->negotiated_login_options.
+ auth_data.chap.target_secret);
+ break;
+ case ISCSI_BOOT_TGT_REV_CHAP_NAME:
+ rc = sprintf(str, "%.*s\n",
+ boot_conn->negotiated_login_options.auth_data.chap.
+ intr_chap_name_length,
+ (char *)&boot_conn->negotiated_login_options.
+ auth_data.chap.intr_chap_name);
+ break;
+ case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
+ rc = sprintf(str, "%.*s\n",
+ boot_conn->negotiated_login_options.auth_data.chap.
+ intr_secret_length,
+ (char *)&boot_conn->negotiated_login_options.
+ auth_data.chap.intr_secret);
+ break;
+ case ISCSI_BOOT_TGT_FLAGS:
+ rc = sprintf(str, "%d\n", BEISCSI_SYSFS_ISCSI_BOOT_FLAGS);
+ break;
+ case ISCSI_BOOT_TGT_NIC_ASSOC:
+ rc = sprintf(str, "0\n");
+ break;
+ }
+ return rc;
+}
+
+static ssize_t beiscsi_show_boot_ini_info(void *data, int type, char *buf)
+{
+ struct beiscsi_hba *phba = data;
+ char *str = buf;
+ int rc = -EPERM;
+
+ switch (type) {
+ case ISCSI_BOOT_INI_INITIATOR_NAME:
+ rc = sprintf(str, "%s\n",
+ phba->boot_struct.boot_sess.initiator_iscsiname);
+ break;
+ }
+ return rc;
+}
+
+static ssize_t beiscsi_show_boot_eth_info(void *data, int type, char *buf)
+{
+ struct beiscsi_hba *phba = data;
+ char *str = buf;
+ int rc = -EPERM;
+
+ switch (type) {
+ case ISCSI_BOOT_ETH_FLAGS:
+ rc = sprintf(str, "%d\n", BEISCSI_SYSFS_ISCSI_BOOT_FLAGS);
+ break;
+ case ISCSI_BOOT_ETH_INDEX:
+ rc = sprintf(str, "0\n");
+ break;
+ case ISCSI_BOOT_ETH_MAC:
+ rc = beiscsi_get_macaddr(str, phba);
+ break;
+ }
+ return rc;
+}
+
+static umode_t beiscsi_tgt_get_attr_visibility(void *data, int type)
+{
+ umode_t rc = 0;
+
+ switch (type) {
+ case ISCSI_BOOT_TGT_NAME:
+ case ISCSI_BOOT_TGT_IP_ADDR:
+ case ISCSI_BOOT_TGT_PORT:
+ case ISCSI_BOOT_TGT_CHAP_NAME:
+ case ISCSI_BOOT_TGT_CHAP_SECRET:
+ case ISCSI_BOOT_TGT_REV_CHAP_NAME:
+ case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
+ case ISCSI_BOOT_TGT_NIC_ASSOC:
+ case ISCSI_BOOT_TGT_FLAGS:
+ rc = S_IRUGO;
+ break;
+ }
+ return rc;
+}
+
+static umode_t beiscsi_ini_get_attr_visibility(void *data, int type)
+{
+ umode_t rc = 0;
+
+ switch (type) {
+ case ISCSI_BOOT_INI_INITIATOR_NAME:
+ rc = S_IRUGO;
+ break;
+ }
+ return rc;
+}
+
+static umode_t beiscsi_eth_get_attr_visibility(void *data, int type)
+{
+ umode_t rc = 0;
+
+ switch (type) {
+ case ISCSI_BOOT_ETH_FLAGS:
+ case ISCSI_BOOT_ETH_MAC:
+ case ISCSI_BOOT_ETH_INDEX:
+ rc = S_IRUGO;
+ break;
+ }
+ return rc;
+}
+
+static void beiscsi_boot_kobj_release(void *data)
+{
+ struct beiscsi_hba *phba = data;
+
+ scsi_host_put(phba->shost);
+}
+
+static int beiscsi_boot_create_kset(struct beiscsi_hba *phba)
+{
+ struct boot_struct *bs = &phba->boot_struct;
+ struct iscsi_boot_kobj *boot_kobj;
+
+ if (bs->boot_kset) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d: boot_kset already created\n");
+ return 0;
+ }
+
+ bs->boot_kset = iscsi_boot_create_host_kset(phba->shost->host_no);
+ if (!bs->boot_kset) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d: boot_kset alloc failed\n");
+ return -ENOMEM;
+ }
+
+ /* get shost ref because the show function will refer phba */
+ if (!scsi_host_get(phba->shost))
+ goto free_kset;
+
+ boot_kobj = iscsi_boot_create_target(bs->boot_kset, 0, phba,
+ beiscsi_show_boot_tgt_info,
+ beiscsi_tgt_get_attr_visibility,
+ beiscsi_boot_kobj_release);
+ if (!boot_kobj)
+ goto put_shost;
+
+ if (!scsi_host_get(phba->shost))
+ goto free_kset;
+
+ boot_kobj = iscsi_boot_create_initiator(bs->boot_kset, 0, phba,
+ beiscsi_show_boot_ini_info,
+ beiscsi_ini_get_attr_visibility,
+ beiscsi_boot_kobj_release);
+ if (!boot_kobj)
+ goto put_shost;
+
+ if (!scsi_host_get(phba->shost))
+ goto free_kset;
+
+ boot_kobj = iscsi_boot_create_ethernet(bs->boot_kset, 0, phba,
+ beiscsi_show_boot_eth_info,
+ beiscsi_eth_get_attr_visibility,
+ beiscsi_boot_kobj_release);
+ if (!boot_kobj)
+ goto put_shost;
+
+ return 0;
+
+put_shost:
+ scsi_host_put(phba->shost);
+free_kset:
+ iscsi_boot_destroy_kset(bs->boot_kset);
+ bs->boot_kset = NULL;
+ return -ENOMEM;
+}
+
+static void beiscsi_boot_work(struct work_struct *work)
+{
+ struct beiscsi_hba *phba =
+ container_of(work, struct beiscsi_hba, boot_work);
+ struct boot_struct *bs = &phba->boot_struct;
+ unsigned int tag = 0;
+
+ if (!beiscsi_hba_is_online(phba))
+ return;
+
+ beiscsi_log(phba, KERN_INFO,
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+ "BM_%d : %s action %d\n",
+ __func__, phba->boot_struct.action);
+
+ switch (phba->boot_struct.action) {
+ case BEISCSI_BOOT_REOPEN_SESS:
+ tag = beiscsi_boot_reopen_sess(phba);
+ break;
+ case BEISCSI_BOOT_GET_SHANDLE:
+ tag = __beiscsi_boot_get_shandle(phba, 1);
+ break;
+ case BEISCSI_BOOT_GET_SINFO:
+ tag = beiscsi_boot_get_sinfo(phba);
+ break;
+ case BEISCSI_BOOT_LOGOUT_SESS:
+ tag = beiscsi_boot_logout_sess(phba);
+ break;
+ case BEISCSI_BOOT_CREATE_KSET:
+ beiscsi_boot_create_kset(phba);
+ /**
+ * updated boot_kset is made visible to all before
+ * ending the boot work.
+ */
+ mb();
+ clear_bit(BEISCSI_HBA_BOOT_WORK, &phba->state);
+ return;
+ }
+ if (!tag) {
+ if (bs->retry--)
+ schedule_work(&phba->boot_work);
+ else
+ clear_bit(BEISCSI_HBA_BOOT_WORK, &phba->state);
+ }
+}
+
+static void beiscsi_eqd_update_work(struct work_struct *work)
+{
+ struct hwi_context_memory *phwi_context;
+ struct be_set_eqd set_eqd[MAX_CPUS];
+ struct hwi_controller *phwi_ctrlr;
+ struct be_eq_obj *pbe_eq;
+ struct beiscsi_hba *phba;
+ unsigned int pps, delta;
+ struct be_aic_obj *aic;
+ int eqd, i, num = 0;
+ unsigned long now;
+
+ phba = container_of(work, struct beiscsi_hba, eqd_update.work);
+ if (!beiscsi_hba_is_online(phba))
+ return;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+
+ for (i = 0; i <= phba->num_cpus; i++) {
+ aic = &phba->aic_obj[i];
+ pbe_eq = &phwi_context->be_eq[i];
+ now = jiffies;
+ if (!aic->jiffies || time_before(now, aic->jiffies) ||
+ pbe_eq->cq_count < aic->eq_prev) {
+ aic->jiffies = now;
+ aic->eq_prev = pbe_eq->cq_count;
+ continue;
+ }
+ delta = jiffies_to_msecs(now - aic->jiffies);
+ pps = (((u32)(pbe_eq->cq_count - aic->eq_prev) * 1000) / delta);
+ eqd = (pps / 1500) << 2;
+
+ if (eqd < 8)
+ eqd = 0;
+ eqd = min_t(u32, eqd, BEISCSI_EQ_DELAY_MAX);
+ eqd = max_t(u32, eqd, BEISCSI_EQ_DELAY_MIN);
+
+ aic->jiffies = now;
+ aic->eq_prev = pbe_eq->cq_count;
+
+ if (eqd != aic->prev_eqd) {
+ set_eqd[num].delay_multiplier = (eqd * 65)/100;
+ set_eqd[num].eq_id = pbe_eq->q.id;
+ aic->prev_eqd = eqd;
+ num++;
+ }
+ }
+ if (num)
+ /* completion of this is ignored */
+ beiscsi_modify_eq_delay(phba, set_eqd, num);
+
+ schedule_delayed_work(&phba->eqd_update,
+ msecs_to_jiffies(BEISCSI_EQD_UPDATE_INTERVAL));
+}
+
+static void beiscsi_hw_tpe_check(struct timer_list *t)
+{
+ struct beiscsi_hba *phba = from_timer(phba, t, hw_check);
+ u32 wait;
+
+ /* if not TPE, do nothing */
+ if (!beiscsi_detect_tpe(phba))
+ return;
+
+ /* wait default 4000ms before recovering */
+ wait = 4000;
+ if (phba->ue2rp > BEISCSI_UE_DETECT_INTERVAL)
+ wait = phba->ue2rp - BEISCSI_UE_DETECT_INTERVAL;
+ queue_delayed_work(phba->wq, &phba->recover_port,
+ msecs_to_jiffies(wait));
+}
+
+static void beiscsi_hw_health_check(struct timer_list *t)
+{
+ struct beiscsi_hba *phba = from_timer(phba, t, hw_check);
+
+ beiscsi_detect_ue(phba);
+ if (beiscsi_detect_ue(phba)) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d : port in error: %lx\n", phba->state);
+ /* sessions are no longer valid, so first fail the sessions */
+ queue_work(phba->wq, &phba->sess_work);
+
+ /* detect UER supported */
+ if (!test_bit(BEISCSI_HBA_UER_SUPP, &phba->state))
+ return;
+ /* modify this timer to check TPE */
+ phba->hw_check.function = beiscsi_hw_tpe_check;
+ }
+
+ mod_timer(&phba->hw_check,
+ jiffies + msecs_to_jiffies(BEISCSI_UE_DETECT_INTERVAL));
+}
+
+/*
+ * beiscsi_enable_port()- Enables the disabled port.
+ * Only port resources freed in disable function are reallocated.
+ * This is called in HBA error handling path.
+ *
+ * @phba: Instance of driver private structure
+ *
+ **/
+static int beiscsi_enable_port(struct beiscsi_hba *phba)
+{
+ struct hwi_context_memory *phwi_context;
+ struct hwi_controller *phwi_ctrlr;
+ struct be_eq_obj *pbe_eq;
+ int ret, i;
+
+ if (test_bit(BEISCSI_HBA_ONLINE, &phba->state)) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d : %s : port is online %lx\n",
+ __func__, phba->state);
+ return 0;
+ }
+
+ ret = beiscsi_init_sliport(phba);
+ if (ret)
+ return ret;
+
+ be2iscsi_enable_msix(phba);
+
+ beiscsi_get_params(phba);
+ beiscsi_set_host_data(phba);
+ /* Re-enable UER. If different TPE occurs then it is recoverable. */
+ beiscsi_set_uer_feature(phba);
+
+ phba->shost->max_id = phba->params.cxns_per_ctrl - 1;
+ phba->shost->can_queue = phba->params.ios_per_ctrl;
+ ret = beiscsi_init_port(phba);
+ if (ret < 0) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d : init port failed\n");
+ goto disable_msix;
+ }
+
+ for (i = 0; i < MAX_MCC_CMD; i++) {
+ init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]);
+ phba->ctrl.mcc_tag[i] = i + 1;
+ phba->ctrl.mcc_tag_status[i + 1] = 0;
+ phba->ctrl.mcc_tag_available++;
+ }
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+ for (i = 0; i < phba->num_cpus; i++) {
+ pbe_eq = &phwi_context->be_eq[i];
+ irq_poll_init(&pbe_eq->iopoll, be_iopoll_budget, be_iopoll);
+ }
+
+ i = (phba->pcidev->msix_enabled) ? i : 0;
+ /* Work item for MCC handling */
+ pbe_eq = &phwi_context->be_eq[i];
+ INIT_WORK(&pbe_eq->mcc_work, beiscsi_mcc_work);
+
+ ret = beiscsi_init_irqs(phba);
+ if (ret < 0) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d : setup IRQs failed %d\n", ret);
+ goto cleanup_port;
+ }
+ hwi_enable_intr(phba);
+ /* port operational: clear all error bits */
+ set_bit(BEISCSI_HBA_ONLINE, &phba->state);
+ __beiscsi_log(phba, KERN_INFO,
+ "BM_%d : port online: 0x%lx\n", phba->state);
+
+ /* start hw_check timer and eqd_update work */
+ schedule_delayed_work(&phba->eqd_update,
+ msecs_to_jiffies(BEISCSI_EQD_UPDATE_INTERVAL));
+
+ /**
+ * Timer function gets modified for TPE detection.
+ * Always reinit to do health check first.
+ */
+ phba->hw_check.function = beiscsi_hw_health_check;
+ mod_timer(&phba->hw_check,
+ jiffies + msecs_to_jiffies(BEISCSI_UE_DETECT_INTERVAL));
+ return 0;
+
+cleanup_port:
+ for (i = 0; i < phba->num_cpus; i++) {
+ pbe_eq = &phwi_context->be_eq[i];
+ irq_poll_disable(&pbe_eq->iopoll);
+ }
+ hwi_cleanup_port(phba);
+
+disable_msix:
+ pci_free_irq_vectors(phba->pcidev);
+ return ret;
+}
+
+/*
+ * beiscsi_disable_port()- Disable port and cleanup driver resources.
+ * This is called in HBA error handling and driver removal.
+ * @phba: Instance Priv structure
+ * @unload: indicate driver is unloading
+ *
+ * Free the OS and HW resources held by the driver
+ **/
+static void beiscsi_disable_port(struct beiscsi_hba *phba, int unload)
+{
+ struct hwi_context_memory *phwi_context;
+ struct hwi_controller *phwi_ctrlr;
+ struct be_eq_obj *pbe_eq;
+ unsigned int i;
+
+ if (!test_and_clear_bit(BEISCSI_HBA_ONLINE, &phba->state))
+ return;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+ hwi_disable_intr(phba);
+ beiscsi_free_irqs(phba);
+ pci_free_irq_vectors(phba->pcidev);
+
+ for (i = 0; i < phba->num_cpus; i++) {
+ pbe_eq = &phwi_context->be_eq[i];
+ irq_poll_disable(&pbe_eq->iopoll);
+ }
+ cancel_delayed_work_sync(&phba->eqd_update);
+ cancel_work_sync(&phba->boot_work);
+ /* WQ might be running cancel queued mcc_work if we are not exiting */
+ if (!unload && beiscsi_hba_in_error(phba)) {
+ pbe_eq = &phwi_context->be_eq[i];
+ cancel_work_sync(&pbe_eq->mcc_work);
+ }
+ hwi_cleanup_port(phba);
+ beiscsi_cleanup_port(phba);
+}
+
+static void beiscsi_sess_work(struct work_struct *work)
+{
+ struct beiscsi_hba *phba;
+
+ phba = container_of(work, struct beiscsi_hba, sess_work);
+ /*
+ * This work gets scheduled only in case of HBA error.
+ * Old sessions are gone so need to be re-established.
+ * iscsi_session_failure needs process context hence this work.
+ */
+ iscsi_host_for_each_session(phba->shost, beiscsi_session_fail);
+}
+
+static void beiscsi_recover_port(struct work_struct *work)
+{
+ struct beiscsi_hba *phba;
+
+ phba = container_of(work, struct beiscsi_hba, recover_port.work);
+ beiscsi_disable_port(phba, 0);
+ beiscsi_enable_port(phba);
+}
+
+static pci_ers_result_t beiscsi_eeh_err_detected(struct pci_dev *pdev,
+ pci_channel_state_t state)
+{
+ struct beiscsi_hba *phba = NULL;
+
+ phba = (struct beiscsi_hba *)pci_get_drvdata(pdev);
+ set_bit(BEISCSI_HBA_PCI_ERR, &phba->state);
+
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : EEH error detected\n");
+
+ /* first stop UE detection when PCI error detected */
+ del_timer_sync(&phba->hw_check);
+ cancel_delayed_work_sync(&phba->recover_port);
+
+ /* sessions are no longer valid, so first fail the sessions */
+ iscsi_host_for_each_session(phba->shost, beiscsi_session_fail);
+ beiscsi_disable_port(phba, 0);
+
+ if (state == pci_channel_io_perm_failure) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : EEH : State PERM Failure");
+ return PCI_ERS_RESULT_DISCONNECT;
+ }
+
+ pci_disable_device(pdev);
+
+ /* The error could cause the FW to trigger a flash debug dump.
+ * Resetting the card while flash dump is in progress
+ * can cause it not to recover; wait for it to finish.
+ * Wait only for first function as it is needed only once per
+ * adapter.
+ **/
+ if (pdev->devfn == 0)
+ ssleep(30);
+
+ return PCI_ERS_RESULT_NEED_RESET;
+}
+
+static pci_ers_result_t beiscsi_eeh_reset(struct pci_dev *pdev)
+{
+ struct beiscsi_hba *phba = NULL;
+ int status = 0;
+
+ phba = (struct beiscsi_hba *)pci_get_drvdata(pdev);
+
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : EEH Reset\n");
+
+ status = pci_enable_device(pdev);
+ if (status)
+ return PCI_ERS_RESULT_DISCONNECT;
+
+ pci_set_master(pdev);
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+
+ status = beiscsi_check_fw_rdy(phba);
+ if (status) {
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+ "BM_%d : EEH Reset Completed\n");
+ } else {
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+ "BM_%d : EEH Reset Completion Failure\n");
+ return PCI_ERS_RESULT_DISCONNECT;
+ }
+
+ return PCI_ERS_RESULT_RECOVERED;
+}
+
+static void beiscsi_eeh_resume(struct pci_dev *pdev)
+{
+ struct beiscsi_hba *phba;
+ int ret;
+
+ phba = (struct beiscsi_hba *)pci_get_drvdata(pdev);
+ pci_save_state(pdev);
+
+ ret = beiscsi_enable_port(phba);
+ if (ret)
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d : AER EEH resume failed\n");
+}
+
+static int beiscsi_dev_probe(struct pci_dev *pcidev,
+ const struct pci_device_id *id)
+{
+ struct hwi_context_memory *phwi_context;
+ struct hwi_controller *phwi_ctrlr;
+ struct beiscsi_hba *phba = NULL;
+ struct be_eq_obj *pbe_eq;
+ unsigned int s_handle;
+ char wq_name[20];
+ int ret, i;
+
+ ret = beiscsi_enable_pci(pcidev);
+ if (ret < 0) {
+ dev_err(&pcidev->dev,
+ "beiscsi_dev_probe - Failed to enable pci device\n");
+ return ret;
+ }
+
+ phba = beiscsi_hba_alloc(pcidev);
+ if (!phba) {
+ dev_err(&pcidev->dev,
+ "beiscsi_dev_probe - Failed in beiscsi_hba_alloc\n");
+ ret = -ENOMEM;
+ goto disable_pci;
+ }
+
+ /* Enable EEH reporting */
+ ret = pci_enable_pcie_error_reporting(pcidev);
+ if (ret)
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+ "BM_%d : PCIe Error Reporting "
+ "Enabling Failed\n");
+
+ pci_save_state(pcidev);
+
+ /* Initialize Driver configuration Paramters */
+ beiscsi_hba_attrs_init(phba);
+
+ phba->mac_addr_set = false;
+
+ switch (pcidev->device) {
+ case BE_DEVICE_ID1:
+ case OC_DEVICE_ID1:
+ case OC_DEVICE_ID2:
+ phba->generation = BE_GEN2;
+ phba->iotask_fn = beiscsi_iotask;
+ dev_warn(&pcidev->dev,
+ "Obsolete/Unsupported BE2 Adapter Family\n");
+ break;
+ case BE_DEVICE_ID2:
+ case OC_DEVICE_ID3:
+ phba->generation = BE_GEN3;
+ phba->iotask_fn = beiscsi_iotask;
+ break;
+ case OC_SKH_ID1:
+ phba->generation = BE_GEN4;
+ phba->iotask_fn = beiscsi_iotask_v2;
+ break;
+ default:
+ phba->generation = 0;
+ }
+
+ ret = be_ctrl_init(phba, pcidev);
+ if (ret) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : be_ctrl_init failed\n");
+ goto free_hba;
+ }
+
+ ret = beiscsi_init_sliport(phba);
+ if (ret)
+ goto free_hba;
+
+ spin_lock_init(&phba->io_sgl_lock);
+ spin_lock_init(&phba->mgmt_sgl_lock);
+ spin_lock_init(&phba->async_pdu_lock);
+ ret = beiscsi_get_fw_config(&phba->ctrl, phba);
+ if (ret != 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : Error getting fw config\n");
+ goto free_port;
+ }
+ beiscsi_get_port_name(&phba->ctrl, phba);
+ beiscsi_get_params(phba);
+ beiscsi_set_host_data(phba);
+ beiscsi_set_uer_feature(phba);
+
+ be2iscsi_enable_msix(phba);
+
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "BM_%d : num_cpus = %d\n",
+ phba->num_cpus);
+
+ phba->shost->max_id = phba->params.cxns_per_ctrl;
+ phba->shost->can_queue = phba->params.ios_per_ctrl;
+ ret = beiscsi_get_memory(phba);
+ if (ret < 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : alloc host mem failed\n");
+ goto free_port;
+ }
+
+ ret = beiscsi_init_port(phba);
+ if (ret < 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : init port failed\n");
+ beiscsi_free_mem(phba);
+ goto free_port;
+ }
+
+ for (i = 0; i < MAX_MCC_CMD; i++) {
+ init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]);
+ phba->ctrl.mcc_tag[i] = i + 1;
+ phba->ctrl.mcc_tag_status[i + 1] = 0;
+ phba->ctrl.mcc_tag_available++;
+ memset(&phba->ctrl.ptag_state[i].tag_mem_state, 0,
+ sizeof(struct be_dma_mem));
+ }
+
+ phba->ctrl.mcc_alloc_index = phba->ctrl.mcc_free_index = 0;
+
+ snprintf(wq_name, sizeof(wq_name), "beiscsi_%02x_wq",
+ phba->shost->host_no);
+ phba->wq = alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, wq_name);
+ if (!phba->wq) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : beiscsi_dev_probe-"
+ "Failed to allocate work queue\n");
+ ret = -ENOMEM;
+ goto free_twq;
+ }
+
+ INIT_DELAYED_WORK(&phba->eqd_update, beiscsi_eqd_update_work);
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+
+ for (i = 0; i < phba->num_cpus; i++) {
+ pbe_eq = &phwi_context->be_eq[i];
+ irq_poll_init(&pbe_eq->iopoll, be_iopoll_budget, be_iopoll);
+ }
+
+ i = (phba->pcidev->msix_enabled) ? i : 0;
+ /* Work item for MCC handling */
+ pbe_eq = &phwi_context->be_eq[i];
+ INIT_WORK(&pbe_eq->mcc_work, beiscsi_mcc_work);
+
+ ret = beiscsi_init_irqs(phba);
+ if (ret < 0) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+ "BM_%d : beiscsi_dev_probe-"
+ "Failed to beiscsi_init_irqs\n");
+ goto disable_iopoll;
+ }
+ hwi_enable_intr(phba);
+
+ ret = iscsi_host_add(phba->shost, &phba->pcidev->dev);
+ if (ret)
+ goto free_irqs;
+
+ /* set online bit after port is operational */
+ set_bit(BEISCSI_HBA_ONLINE, &phba->state);
+ __beiscsi_log(phba, KERN_INFO,
+ "BM_%d : port online: 0x%lx\n", phba->state);
+
+ INIT_WORK(&phba->boot_work, beiscsi_boot_work);
+ ret = beiscsi_boot_get_shandle(phba, &s_handle);
+ if (ret > 0) {
+ beiscsi_start_boot_work(phba, s_handle);
+ /**
+ * Set this bit after starting the work to let
+ * probe handle it first.
+ * ASYNC event can too schedule this work.
+ */
+ set_bit(BEISCSI_HBA_BOOT_FOUND, &phba->state);
+ }
+
+ beiscsi_iface_create_default(phba);
+ schedule_delayed_work(&phba->eqd_update,
+ msecs_to_jiffies(BEISCSI_EQD_UPDATE_INTERVAL));
+
+ INIT_WORK(&phba->sess_work, beiscsi_sess_work);
+ INIT_DELAYED_WORK(&phba->recover_port, beiscsi_recover_port);
+ /**
+ * Start UE detection here. UE before this will cause stall in probe
+ * and eventually fail the probe.
+ */
+ timer_setup(&phba->hw_check, beiscsi_hw_health_check, 0);
+ mod_timer(&phba->hw_check,
+ jiffies + msecs_to_jiffies(BEISCSI_UE_DETECT_INTERVAL));
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+ "\n\n\n BM_%d : SUCCESS - DRIVER LOADED\n\n\n");
+ return 0;
+
+free_irqs:
+ hwi_disable_intr(phba);
+ beiscsi_free_irqs(phba);
+disable_iopoll:
+ for (i = 0; i < phba->num_cpus; i++) {
+ pbe_eq = &phwi_context->be_eq[i];
+ irq_poll_disable(&pbe_eq->iopoll);
+ }
+ destroy_workqueue(phba->wq);
+free_twq:
+ hwi_cleanup_port(phba);
+ beiscsi_cleanup_port(phba);
+ beiscsi_free_mem(phba);
+free_port:
+ dma_free_coherent(&phba->pcidev->dev,
+ phba->ctrl.mbox_mem_alloced.size,
+ phba->ctrl.mbox_mem_alloced.va,
+ phba->ctrl.mbox_mem_alloced.dma);
+ beiscsi_unmap_pci_function(phba);
+free_hba:
+ pci_disable_msix(phba->pcidev);
+ pci_dev_put(phba->pcidev);
+ iscsi_host_free(phba->shost);
+ pci_disable_pcie_error_reporting(pcidev);
+ pci_set_drvdata(pcidev, NULL);
+disable_pci:
+ pci_release_regions(pcidev);
+ pci_disable_device(pcidev);
+ return ret;
+}
+
+static void beiscsi_remove(struct pci_dev *pcidev)
+{
+ struct beiscsi_hba *phba = NULL;
+
+ phba = pci_get_drvdata(pcidev);
+ if (!phba) {
+ dev_err(&pcidev->dev, "beiscsi_remove called with no phba\n");
+ return;
+ }
+
+ /* first stop UE detection before unloading */
+ del_timer_sync(&phba->hw_check);
+ cancel_delayed_work_sync(&phba->recover_port);
+ cancel_work_sync(&phba->sess_work);
+
+ beiscsi_iface_destroy_default(phba);
+ iscsi_host_remove(phba->shost, false);
+ beiscsi_disable_port(phba, 1);
+
+ /* after cancelling boot_work */
+ iscsi_boot_destroy_kset(phba->boot_struct.boot_kset);
+
+ /* free all resources */
+ destroy_workqueue(phba->wq);
+ beiscsi_free_mem(phba);
+
+ /* ctrl uninit */
+ beiscsi_unmap_pci_function(phba);
+ dma_free_coherent(&phba->pcidev->dev,
+ phba->ctrl.mbox_mem_alloced.size,
+ phba->ctrl.mbox_mem_alloced.va,
+ phba->ctrl.mbox_mem_alloced.dma);
+
+ pci_dev_put(phba->pcidev);
+ iscsi_host_free(phba->shost);
+ pci_disable_pcie_error_reporting(pcidev);
+ pci_set_drvdata(pcidev, NULL);
+ pci_release_regions(pcidev);
+ pci_disable_device(pcidev);
+}
+
+
+static struct pci_error_handlers beiscsi_eeh_handlers = {
+ .error_detected = beiscsi_eeh_err_detected,
+ .slot_reset = beiscsi_eeh_reset,
+ .resume = beiscsi_eeh_resume,
+};
+
+struct iscsi_transport beiscsi_iscsi_transport = {
+ .owner = THIS_MODULE,
+ .name = DRV_NAME,
+ .caps = CAP_RECOVERY_L0 | CAP_HDRDGST | CAP_TEXT_NEGO |
+ CAP_MULTI_R2T | CAP_DATADGST | CAP_DATA_PATH_OFFLOAD,
+ .create_session = beiscsi_session_create,
+ .destroy_session = beiscsi_session_destroy,
+ .create_conn = beiscsi_conn_create,
+ .bind_conn = beiscsi_conn_bind,
+ .unbind_conn = iscsi_conn_unbind,
+ .destroy_conn = iscsi_conn_teardown,
+ .attr_is_visible = beiscsi_attr_is_visible,
+ .set_iface_param = beiscsi_iface_set_param,
+ .get_iface_param = beiscsi_iface_get_param,
+ .set_param = beiscsi_set_param,
+ .get_conn_param = iscsi_conn_get_param,
+ .get_session_param = iscsi_session_get_param,
+ .get_host_param = beiscsi_get_host_param,
+ .start_conn = beiscsi_conn_start,
+ .stop_conn = iscsi_conn_stop,
+ .send_pdu = iscsi_conn_send_pdu,
+ .xmit_task = beiscsi_task_xmit,
+ .cleanup_task = beiscsi_cleanup_task,
+ .alloc_pdu = beiscsi_alloc_pdu,
+ .parse_pdu_itt = beiscsi_parse_pdu,
+ .get_stats = beiscsi_conn_get_stats,
+ .get_ep_param = beiscsi_ep_get_param,
+ .ep_connect = beiscsi_ep_connect,
+ .ep_poll = beiscsi_ep_poll,
+ .ep_disconnect = beiscsi_ep_disconnect,
+ .session_recovery_timedout = iscsi_session_recovery_timedout,
+ .bsg_request = beiscsi_bsg_request,
+};
+
+static struct pci_driver beiscsi_pci_driver = {
+ .name = DRV_NAME,
+ .probe = beiscsi_dev_probe,
+ .remove = beiscsi_remove,
+ .id_table = beiscsi_pci_id_table,
+ .err_handler = &beiscsi_eeh_handlers
+};
+
+static int __init beiscsi_module_init(void)
+{
+ int ret;
+
+ beiscsi_scsi_transport =
+ iscsi_register_transport(&beiscsi_iscsi_transport);
+ if (!beiscsi_scsi_transport) {
+ printk(KERN_ERR
+ "beiscsi_module_init - Unable to register beiscsi transport.\n");
+ return -ENOMEM;
+ }
+ printk(KERN_INFO "In beiscsi_module_init, tt=%p\n",
+ &beiscsi_iscsi_transport);
+
+ ret = pci_register_driver(&beiscsi_pci_driver);
+ if (ret) {
+ printk(KERN_ERR
+ "beiscsi_module_init - Unable to register beiscsi pci driver.\n");
+ goto unregister_iscsi_transport;
+ }
+ return 0;
+
+unregister_iscsi_transport:
+ iscsi_unregister_transport(&beiscsi_iscsi_transport);
+ return ret;
+}
+
+static void __exit beiscsi_module_exit(void)
+{
+ pci_unregister_driver(&beiscsi_pci_driver);
+ iscsi_unregister_transport(&beiscsi_iscsi_transport);
+}
+
+module_init(beiscsi_module_init);
+module_exit(beiscsi_module_exit);
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
new file mode 100644
index 000000000..98977c070
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -0,0 +1,1030 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2017 Broadcom. All Rights Reserved.
+ * The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
+ *
+ * Contact Information:
+ * linux-drivers@broadcom.com
+ */
+
+#ifndef _BEISCSI_MAIN_
+#define _BEISCSI_MAIN_
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/if_ether.h>
+#include <linux/in.h>
+#include <linux/ctype.h>
+#include <linux/module.h>
+#include <linux/aer.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/iscsi_proto.h>
+#include <scsi/libiscsi.h>
+#include <scsi/scsi_transport_iscsi.h>
+
+#define DRV_NAME "be2iscsi"
+#define BUILD_STR "11.4.0.1"
+#define BE_NAME "Emulex OneConnect" \
+ "Open-iSCSI Driver version" BUILD_STR
+#define DRV_DESC BE_NAME " " "Driver"
+
+#define BE_VENDOR_ID 0x19A2
+#define ELX_VENDOR_ID 0x10DF
+/* DEVICE ID's for BE2 */
+#define BE_DEVICE_ID1 0x212
+#define OC_DEVICE_ID1 0x702
+#define OC_DEVICE_ID2 0x703
+
+/* DEVICE ID's for BE3 */
+#define BE_DEVICE_ID2 0x222
+#define OC_DEVICE_ID3 0x712
+
+/* DEVICE ID for SKH */
+#define OC_SKH_ID1 0x722
+
+#define BE2_IO_DEPTH 1024
+#define BE2_MAX_SESSIONS 256
+#define BE2_TMFS 16
+#define BE2_NOPOUT_REQ 16
+#define BE2_SGE 32
+#define BE2_DEFPDU_HDR_SZ 64
+#define BE2_DEFPDU_DATA_SZ 8192
+#define BE2_MAX_NUM_CQ_PROC 512
+
+#define MAX_CPUS 64U
+#define BEISCSI_MAX_NUM_CPUS 7
+
+#define BEISCSI_VER_STRLEN 32
+
+#define BEISCSI_SGLIST_ELEMENTS 30
+
+/**
+ * BE_INVLDT_CMD_TBL_SZ is 128 which is total number commands that can
+ * be invalidated at a time, consider it before changing the value of
+ * BEISCSI_CMD_PER_LUN.
+ */
+#define BEISCSI_CMD_PER_LUN 128 /* scsi_host->cmd_per_lun */
+#define BEISCSI_MAX_SECTORS 1024 /* scsi_host->max_sectors */
+#define BEISCSI_TEMPLATE_HDR_PER_CXN_SIZE 128 /* Template size per cxn */
+
+#define BEISCSI_MAX_CMD_LEN 16 /* scsi_host->max_cmd_len */
+#define BEISCSI_NUM_MAX_LUN 256 /* scsi_host->max_lun */
+#define BEISCSI_MAX_FRAGS_INIT 192
+
+#define BE_SENSE_INFO_SIZE 258
+#define BE_ISCSI_PDU_HEADER_SIZE 64
+#define BE_MIN_MEM_SIZE 16384
+#define MAX_CMD_SZ 65536
+#define IIOC_SCSI_DATA 0x05 /* Write Operation */
+
+/**
+ * hardware needs the async PDU buffers to be posted in multiples of 8
+ * So have atleast 8 of them by default
+ */
+
+#define HWI_GET_ASYNC_PDU_CTX(phwi, ulp_num) \
+ (phwi->phwi_ctxt->pasync_ctx[ulp_num])
+
+/********* Memory BAR register ************/
+#define PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET 0xfc
+/**
+ * Host Interrupt Enable, if set interrupts are enabled although "PCI Interrupt
+ * Disable" may still globally block interrupts in addition to individual
+ * interrupt masks; a mechanism for the device driver to block all interrupts
+ * atomically without having to arbitrate for the PCI Interrupt Disable bit
+ * with the OS.
+ */
+#define MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK (1 << 29) /* bit 29 */
+
+/********* ISR0 Register offset **********/
+#define CEV_ISR0_OFFSET 0xC18
+#define CEV_ISR_SIZE 4
+
+/**
+ * Macros for reading/writing a protection domain or CSR registers
+ * in BladeEngine.
+ */
+
+#define DB_TXULP0_OFFSET 0x40
+#define DB_RXULP0_OFFSET 0xA0
+/********* Event Q door bell *************/
+#define DB_EQ_OFFSET DB_CQ_OFFSET
+#define DB_EQ_RING_ID_LOW_MASK 0x1FF /* bits 0 - 8 */
+/* Clear the interrupt for this eq */
+#define DB_EQ_CLR_SHIFT (9) /* bit 9 */
+/* Must be 1 */
+#define DB_EQ_EVNT_SHIFT (10) /* bit 10 */
+/* Higher Order EQ_ID bit */
+#define DB_EQ_RING_ID_HIGH_MASK 0x1F /* bits 11 - 15 */
+#define DB_EQ_HIGH_SET_SHIFT 11
+#define DB_EQ_HIGH_FEILD_SHIFT 9
+/* Number of event entries processed */
+#define DB_EQ_NUM_POPPED_SHIFT (16) /* bits 16 - 28 */
+/* Rearm bit */
+#define DB_EQ_REARM_SHIFT (29) /* bit 29 */
+
+/********* Compl Q door bell *************/
+#define DB_CQ_OFFSET 0x120
+#define DB_CQ_RING_ID_LOW_MASK 0x3FF /* bits 0 - 9 */
+/* Higher Order CQ_ID bit */
+#define DB_CQ_RING_ID_HIGH_MASK 0x1F /* bits 11 - 15 */
+#define DB_CQ_HIGH_SET_SHIFT 11
+#define DB_CQ_HIGH_FEILD_SHIFT 10
+
+/* Number of event entries processed */
+#define DB_CQ_NUM_POPPED_SHIFT (16) /* bits 16 - 28 */
+/* Rearm bit */
+#define DB_CQ_REARM_SHIFT (29) /* bit 29 */
+
+#define GET_HWI_CONTROLLER_WS(pc) (pc->phwi_ctrlr)
+#define HWI_GET_DEF_BUFQ_ID(pc, ulp_num) (((struct hwi_controller *)\
+ (GET_HWI_CONTROLLER_WS(pc)))->default_pdu_data[ulp_num].id)
+#define HWI_GET_DEF_HDRQ_ID(pc, ulp_num) (((struct hwi_controller *)\
+ (GET_HWI_CONTROLLER_WS(pc)))->default_pdu_hdr[ulp_num].id)
+
+#define PAGES_REQUIRED(x) \
+ ((x < PAGE_SIZE) ? 1 : ((x + PAGE_SIZE - 1) / PAGE_SIZE))
+
+#define MEM_DESCR_OFFSET 8
+#define BEISCSI_DEFQ_HDR 1
+#define BEISCSI_DEFQ_DATA 0
+enum be_mem_enum {
+ HWI_MEM_ADDN_CONTEXT,
+ HWI_MEM_WRB,
+ HWI_MEM_WRBH,
+ HWI_MEM_SGLH,
+ HWI_MEM_SGE,
+ HWI_MEM_TEMPLATE_HDR_ULP0,
+ HWI_MEM_ASYNC_HEADER_BUF_ULP0, /* 6 */
+ HWI_MEM_ASYNC_DATA_BUF_ULP0,
+ HWI_MEM_ASYNC_HEADER_RING_ULP0,
+ HWI_MEM_ASYNC_DATA_RING_ULP0,
+ HWI_MEM_ASYNC_HEADER_HANDLE_ULP0,
+ HWI_MEM_ASYNC_DATA_HANDLE_ULP0, /* 11 */
+ HWI_MEM_ASYNC_PDU_CONTEXT_ULP0,
+ HWI_MEM_TEMPLATE_HDR_ULP1,
+ HWI_MEM_ASYNC_HEADER_BUF_ULP1, /* 14 */
+ HWI_MEM_ASYNC_DATA_BUF_ULP1,
+ HWI_MEM_ASYNC_HEADER_RING_ULP1,
+ HWI_MEM_ASYNC_DATA_RING_ULP1,
+ HWI_MEM_ASYNC_HEADER_HANDLE_ULP1,
+ HWI_MEM_ASYNC_DATA_HANDLE_ULP1, /* 19 */
+ HWI_MEM_ASYNC_PDU_CONTEXT_ULP1,
+ ISCSI_MEM_GLOBAL_HEADER,
+ SE_MEM_MAX
+};
+
+struct be_bus_address32 {
+ unsigned int address_lo;
+ unsigned int address_hi;
+};
+
+struct be_bus_address64 {
+ unsigned long long address;
+};
+
+struct be_bus_address {
+ union {
+ struct be_bus_address32 a32;
+ struct be_bus_address64 a64;
+ } u;
+};
+
+struct mem_array {
+ struct be_bus_address bus_address; /* Bus address of location */
+ void *virtual_address; /* virtual address to the location */
+ unsigned int size; /* Size required by memory block */
+};
+
+struct be_mem_descriptor {
+ unsigned int size_in_bytes; /* Size required by memory block */
+ unsigned int num_elements;
+ struct mem_array *mem_array;
+};
+
+struct sgl_handle {
+ unsigned int sgl_index;
+ unsigned int type;
+ unsigned int cid;
+ struct iscsi_task *task;
+ struct iscsi_sge *pfrag;
+};
+
+struct hba_parameters {
+ unsigned int ios_per_ctrl;
+ unsigned int cxns_per_ctrl;
+ unsigned int icds_per_ctrl;
+ unsigned int num_sge_per_io;
+ unsigned int defpdu_hdr_sz;
+ unsigned int defpdu_data_sz;
+ unsigned int num_cq_entries;
+ unsigned int num_eq_entries;
+ unsigned int wrbs_per_cxn;
+ unsigned int hwi_ws_sz;
+};
+
+#define BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr, cri) \
+ (phwi_ctrlr->wrb_context[cri].ulp_num)
+struct hwi_wrb_context {
+ spinlock_t wrb_lock;
+ struct wrb_handle **pwrb_handle_base;
+ struct wrb_handle **pwrb_handle_basestd;
+ struct iscsi_wrb *plast_wrb;
+ unsigned short alloc_index;
+ unsigned short free_index;
+ unsigned short wrb_handles_available;
+ unsigned short cid;
+ uint8_t ulp_num; /* ULP to which CID binded */
+ uint32_t doorbell_offset;
+};
+
+struct ulp_cid_info {
+ unsigned short *cid_array;
+ unsigned short avlbl_cids;
+ unsigned short cid_alloc;
+ unsigned short cid_free;
+};
+
+#include "be.h"
+#define chip_be2(phba) (phba->generation == BE_GEN2)
+#define chip_be3_r(phba) (phba->generation == BE_GEN3)
+#define is_chip_be2_be3r(phba) (chip_be3_r(phba) || (chip_be2(phba)))
+
+#define BEISCSI_ULP0 0
+#define BEISCSI_ULP1 1
+#define BEISCSI_ULP_COUNT 2
+#define BEISCSI_ULP0_LOADED 0x01
+#define BEISCSI_ULP1_LOADED 0x02
+
+#define BEISCSI_ULP_AVLBL_CID(phba, ulp_num) \
+ (((struct ulp_cid_info *)phba->cid_array_info[ulp_num])->avlbl_cids)
+#define BEISCSI_ULP0_AVLBL_CID(phba) \
+ BEISCSI_ULP_AVLBL_CID(phba, BEISCSI_ULP0)
+#define BEISCSI_ULP1_AVLBL_CID(phba) \
+ BEISCSI_ULP_AVLBL_CID(phba, BEISCSI_ULP1)
+
+struct beiscsi_hba {
+ struct hba_parameters params;
+ struct hwi_controller *phwi_ctrlr;
+ unsigned int mem_req[SE_MEM_MAX];
+ /* PCI BAR mapped addresses */
+ u8 __iomem *csr_va; /* CSR */
+ u8 __iomem *db_va; /* Door Bell */
+ u8 __iomem *pci_va; /* PCI Config */
+ /* PCI representation of our HBA */
+ struct pci_dev *pcidev;
+ unsigned int num_cpus;
+ unsigned int nxt_cqid;
+ char *msi_name[MAX_CPUS];
+ struct be_mem_descriptor *init_mem;
+
+ unsigned short io_sgl_alloc_index;
+ unsigned short io_sgl_free_index;
+ unsigned short io_sgl_hndl_avbl;
+ struct sgl_handle **io_sgl_hndl_base;
+
+ unsigned short eh_sgl_alloc_index;
+ unsigned short eh_sgl_free_index;
+ unsigned short eh_sgl_hndl_avbl;
+ struct sgl_handle **eh_sgl_hndl_base;
+ spinlock_t io_sgl_lock;
+ spinlock_t mgmt_sgl_lock;
+ spinlock_t async_pdu_lock;
+ struct list_head hba_queue;
+#define BE_MAX_SESSION 2048
+#define BE_INVALID_CID 0xffff
+#define BE_SET_CID_TO_CRI(cri_index, cid) \
+ (phba->cid_to_cri_map[cid] = cri_index)
+#define BE_GET_CRI_FROM_CID(cid) (phba->cid_to_cri_map[cid])
+ unsigned short cid_to_cri_map[BE_MAX_SESSION];
+ struct ulp_cid_info *cid_array_info[BEISCSI_ULP_COUNT];
+ struct iscsi_endpoint **ep_array;
+ struct beiscsi_conn **conn_table;
+ struct Scsi_Host *shost;
+ struct iscsi_iface *ipv4_iface;
+ struct iscsi_iface *ipv6_iface;
+ struct {
+ /**
+ * group together since they are used most frequently
+ * for cid to cri conversion
+ */
+#define BEISCSI_PHYS_PORT_MAX 4
+ unsigned int phys_port;
+ /* valid values of phys_port id are 0, 1, 2, 3 */
+ unsigned int eqid_count;
+ unsigned int cqid_count;
+ unsigned int iscsi_cid_start[BEISCSI_ULP_COUNT];
+#define BEISCSI_GET_CID_COUNT(phba, ulp_num) \
+ (phba->fw_config.iscsi_cid_count[ulp_num])
+ unsigned int iscsi_cid_count[BEISCSI_ULP_COUNT];
+ unsigned int iscsi_icd_count[BEISCSI_ULP_COUNT];
+ unsigned int iscsi_icd_start[BEISCSI_ULP_COUNT];
+ unsigned int iscsi_chain_start[BEISCSI_ULP_COUNT];
+ unsigned int iscsi_chain_count[BEISCSI_ULP_COUNT];
+
+ unsigned short iscsi_features;
+ uint16_t dual_ulp_aware;
+ unsigned long ulp_supported;
+ } fw_config;
+
+ unsigned long state;
+#define BEISCSI_HBA_ONLINE 0
+#define BEISCSI_HBA_LINK_UP 1
+#define BEISCSI_HBA_BOOT_FOUND 2
+#define BEISCSI_HBA_BOOT_WORK 3
+#define BEISCSI_HBA_UER_SUPP 4
+#define BEISCSI_HBA_PCI_ERR 5
+#define BEISCSI_HBA_FW_TIMEOUT 6
+#define BEISCSI_HBA_IN_UE 7
+#define BEISCSI_HBA_IN_TPE 8
+
+/* error bits */
+#define BEISCSI_HBA_IN_ERR ((1 << BEISCSI_HBA_PCI_ERR) | \
+ (1 << BEISCSI_HBA_FW_TIMEOUT) | \
+ (1 << BEISCSI_HBA_IN_UE) | \
+ (1 << BEISCSI_HBA_IN_TPE))
+
+ u8 optic_state;
+ struct delayed_work eqd_update;
+ /* update EQ delay timer every 1000ms */
+#define BEISCSI_EQD_UPDATE_INTERVAL 1000
+ struct timer_list hw_check;
+ /* check for UE every 1000ms */
+#define BEISCSI_UE_DETECT_INTERVAL 1000
+ u32 ue2rp;
+ struct delayed_work recover_port;
+ struct work_struct sess_work;
+
+ bool mac_addr_set;
+ u8 mac_address[ETH_ALEN];
+ u8 port_name;
+ u8 port_speed;
+ char fw_ver_str[BEISCSI_VER_STRLEN];
+ struct workqueue_struct *wq; /* The actuak work queue */
+ struct be_ctrl_info ctrl;
+ unsigned int generation;
+ unsigned int interface_handle;
+
+ struct be_aic_obj aic_obj[MAX_CPUS];
+ unsigned int attr_log_enable;
+ int (*iotask_fn)(struct iscsi_task *,
+ struct scatterlist *sg,
+ uint32_t num_sg, uint32_t xferlen,
+ uint32_t writedir);
+ struct boot_struct {
+ int retry;
+ unsigned int tag;
+ unsigned int s_handle;
+ struct be_dma_mem nonemb_cmd;
+ enum {
+ BEISCSI_BOOT_REOPEN_SESS = 1,
+ BEISCSI_BOOT_GET_SHANDLE,
+ BEISCSI_BOOT_GET_SINFO,
+ BEISCSI_BOOT_LOGOUT_SESS,
+ BEISCSI_BOOT_CREATE_KSET,
+ } action;
+ struct mgmt_session_info boot_sess;
+ struct iscsi_boot_kset *boot_kset;
+ } boot_struct;
+ struct work_struct boot_work;
+};
+
+#define beiscsi_hba_in_error(phba) ((phba)->state & BEISCSI_HBA_IN_ERR)
+#define beiscsi_hba_is_online(phba) \
+ (!beiscsi_hba_in_error((phba)) && \
+ test_bit(BEISCSI_HBA_ONLINE, &phba->state))
+
+struct beiscsi_session {
+ struct dma_pool *bhs_pool;
+};
+
+/**
+ * struct beiscsi_conn - iscsi connection structure
+ */
+struct beiscsi_conn {
+ struct iscsi_conn *conn;
+ struct beiscsi_hba *phba;
+ u32 exp_statsn;
+ u32 doorbell_offset;
+ u32 beiscsi_conn_cid;
+ struct beiscsi_endpoint *ep;
+ unsigned short login_in_progress;
+ struct wrb_handle *plogin_wrb_handle;
+ struct sgl_handle *plogin_sgl_handle;
+ struct beiscsi_session *beiscsi_sess;
+ struct iscsi_task *task;
+};
+
+/* This structure is used by the chip */
+struct pdu_data_out {
+ u32 dw[12];
+};
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_pdu_data_out {
+ u8 opcode[6]; /* opcode */
+ u8 rsvd0[2]; /* should be 0 */
+ u8 rsvd1[7];
+ u8 final_bit; /* F bit */
+ u8 rsvd2[16];
+ u8 ahs_length[8]; /* no AHS */
+ u8 data_len_hi[8];
+ u8 data_len_lo[16]; /* DataSegmentLength */
+ u8 lun[64];
+ u8 itt[32]; /* ITT; initiator task tag */
+ u8 ttt[32]; /* TTT; valid for R2T or 0xffffffff */
+ u8 rsvd3[32];
+ u8 exp_stat_sn[32];
+ u8 rsvd4[32];
+ u8 data_sn[32];
+ u8 buffer_offset[32];
+ u8 rsvd5[32];
+};
+
+struct be_cmd_bhs {
+ struct iscsi_scsi_req iscsi_hdr;
+ unsigned char pad1[16];
+ struct pdu_data_out iscsi_data_pdu;
+ unsigned char pad2[BE_SENSE_INFO_SIZE -
+ sizeof(struct pdu_data_out)];
+};
+
+struct beiscsi_io_task {
+ struct wrb_handle *pwrb_handle;
+ struct sgl_handle *psgl_handle;
+ struct beiscsi_conn *conn;
+ struct scsi_cmnd *scsi_cmnd;
+ int num_sg;
+ struct hwi_wrb_context *pwrb_context;
+ itt_t libiscsi_itt;
+ struct be_cmd_bhs *cmd_bhs;
+ struct be_bus_address bhs_pa;
+ unsigned short bhs_len;
+ dma_addr_t mtask_addr;
+ uint32_t mtask_data_count;
+ uint8_t wrb_type;
+};
+
+struct be_nonio_bhs {
+ struct iscsi_hdr iscsi_hdr;
+ unsigned char pad1[16];
+ struct pdu_data_out iscsi_data_pdu;
+ unsigned char pad2[BE_SENSE_INFO_SIZE -
+ sizeof(struct pdu_data_out)];
+};
+
+struct be_status_bhs {
+ struct iscsi_scsi_req iscsi_hdr;
+ unsigned char pad1[16];
+ /**
+ * The plus 2 below is to hold the sense info length that gets
+ * DMA'ed by RxULP
+ */
+ unsigned char sense_info[BE_SENSE_INFO_SIZE];
+};
+
+struct iscsi_sge {
+ u32 dw[4];
+};
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_iscsi_sge {
+ u8 addr_hi[32];
+ u8 addr_lo[32];
+ u8 sge_offset[22]; /* DWORD 2 */
+ u8 rsvd0[9]; /* DWORD 2 */
+ u8 last_sge; /* DWORD 2 */
+ u8 len[17]; /* DWORD 3 */
+ u8 rsvd1[15]; /* DWORD 3 */
+};
+
+struct beiscsi_offload_params {
+ u32 dw[6];
+};
+
+#define OFFLD_PARAMS_ERL 0x00000003
+#define OFFLD_PARAMS_DDE 0x00000004
+#define OFFLD_PARAMS_HDE 0x00000008
+#define OFFLD_PARAMS_IR2T 0x00000010
+#define OFFLD_PARAMS_IMD 0x00000020
+#define OFFLD_PARAMS_DATA_SEQ_INORDER 0x00000040
+#define OFFLD_PARAMS_PDU_SEQ_INORDER 0x00000080
+#define OFFLD_PARAMS_MAX_R2T 0x00FFFF00
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_beiscsi_offload_params {
+ u8 max_burst_length[32];
+ u8 max_send_data_segment_length[32];
+ u8 first_burst_length[32];
+ u8 erl[2];
+ u8 dde[1];
+ u8 hde[1];
+ u8 ir2t[1];
+ u8 imd[1];
+ u8 data_seq_inorder[1];
+ u8 pdu_seq_inorder[1];
+ u8 max_r2t[16];
+ u8 pad[8];
+ u8 exp_statsn[32];
+ u8 max_recv_data_segment_length[32];
+};
+
+struct hd_async_handle {
+ struct list_head link;
+ struct be_bus_address pa;
+ void *pbuffer;
+ u32 buffer_len;
+ u16 index;
+ u16 cri;
+ u8 is_header;
+ u8 is_final;
+ u8 in_use;
+};
+
+#define BEISCSI_ASYNC_HDQ_SIZE(phba, ulp) \
+ (BEISCSI_GET_CID_COUNT((phba), (ulp)) * 2)
+
+/**
+ * This has list of async PDUs that are waiting to be processed.
+ * Buffers live in this list for a brief duration before they get
+ * processed and posted back to hardware.
+ * Note that we don't really need one cri_wait_queue per async_entry.
+ * We need one cri_wait_queue per CRI. Its easier to manage if this
+ * is tagged along with the async_entry.
+ */
+struct hd_async_entry {
+ struct cri_wait_queue {
+ unsigned short hdr_len;
+ unsigned int bytes_received;
+ unsigned int bytes_needed;
+ struct list_head list;
+ } wq;
+ /* handles posted to FW resides here */
+ struct hd_async_handle *header;
+ struct hd_async_handle *data;
+};
+
+struct hd_async_buf_context {
+ struct be_bus_address pa_base;
+ void *va_base;
+ void *ring_base;
+ struct hd_async_handle *handle_base;
+ u32 buffer_size;
+ u16 pi;
+};
+
+/**
+ * hd_async_context is declared for each ULP supporting iSCSI function.
+ */
+struct hd_async_context {
+ struct hd_async_buf_context async_header;
+ struct hd_async_buf_context async_data;
+ u16 num_entries;
+ /**
+ * When unsol PDU is in, it needs to be chained till all the bytes are
+ * received and then processing is done. hd_async_entry is created
+ * based on the cid_count for each ULP. When unsol PDU comes in based
+ * on the conn_id it needs to be added to the correct async_entry wq.
+ * Below defined cid_to_async_cri_map is used to reterive the
+ * async_cri_map for a particular connection.
+ *
+ * This array is initialized after beiscsi_create_wrb_rings returns.
+ *
+ * - this method takes more memory space, fixed to 2K
+ * - any support for connections greater than this the array size needs
+ * to be incremented
+ */
+#define BE_GET_ASYNC_CRI_FROM_CID(cid) (pasync_ctx->cid_to_async_cri_map[cid])
+ unsigned short cid_to_async_cri_map[BE_MAX_SESSION];
+ /**
+ * This is a variable size array. Don`t add anything after this field!!
+ */
+ struct hd_async_entry *async_entry;
+};
+
+struct i_t_dpdu_cqe {
+ u32 dw[4];
+} __packed;
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_i_t_dpdu_cqe {
+ u8 db_addr_hi[32];
+ u8 db_addr_lo[32];
+ u8 code[6];
+ u8 cid[10];
+ u8 dpl[16];
+ u8 index[16];
+ u8 num_cons[10];
+ u8 rsvd0[4];
+ u8 final;
+ u8 valid;
+} __packed;
+
+struct amap_i_t_dpdu_cqe_v2 {
+ u8 db_addr_hi[32]; /* DWORD 0 */
+ u8 db_addr_lo[32]; /* DWORD 1 */
+ u8 code[6]; /* DWORD 2 */
+ u8 num_cons; /* DWORD 2*/
+ u8 rsvd0[8]; /* DWORD 2 */
+ u8 dpl[17]; /* DWORD 2 */
+ u8 index[16]; /* DWORD 3 */
+ u8 cid[13]; /* DWORD 3 */
+ u8 rsvd1; /* DWORD 3 */
+ u8 final; /* DWORD 3 */
+ u8 valid; /* DWORD 3 */
+} __packed;
+
+#define CQE_VALID_MASK 0x80000000
+#define CQE_CODE_MASK 0x0000003F
+#define CQE_CID_MASK 0x0000FFC0
+
+#define EQE_VALID_MASK 0x00000001
+#define EQE_MAJORCODE_MASK 0x0000000E
+#define EQE_RESID_MASK 0xFFFF0000
+
+struct be_eq_entry {
+ u32 dw[1];
+} __packed;
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_eq_entry {
+ u8 valid; /* DWORD 0 */
+ u8 major_code[3]; /* DWORD 0 */
+ u8 minor_code[12]; /* DWORD 0 */
+ u8 resource_id[16]; /* DWORD 0 */
+
+} __packed;
+
+struct cq_db {
+ u32 dw[1];
+} __packed;
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_cq_db {
+ u8 qid[10];
+ u8 event[1];
+ u8 rsvd0[5];
+ u8 num_popped[13];
+ u8 rearm[1];
+ u8 rsvd1[2];
+} __packed;
+
+void beiscsi_process_eq(struct beiscsi_hba *phba);
+
+struct iscsi_wrb {
+ u32 dw[16];
+} __packed;
+
+#define WRB_TYPE_MASK 0xF0000000
+#define SKH_WRB_TYPE_OFFSET 27
+#define BE_WRB_TYPE_OFFSET 28
+
+#define ADAPTER_SET_WRB_TYPE(pwrb, wrb_type, type_offset) \
+ (pwrb->dw[0] |= (wrb_type << type_offset))
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_iscsi_wrb {
+ u8 lun[14]; /* DWORD 0 */
+ u8 lt; /* DWORD 0 */
+ u8 invld; /* DWORD 0 */
+ u8 wrb_idx[8]; /* DWORD 0 */
+ u8 dsp; /* DWORD 0 */
+ u8 dmsg; /* DWORD 0 */
+ u8 undr_run; /* DWORD 0 */
+ u8 over_run; /* DWORD 0 */
+ u8 type[4]; /* DWORD 0 */
+ u8 ptr2nextwrb[8]; /* DWORD 1 */
+ u8 r2t_exp_dtl[24]; /* DWORD 1 */
+ u8 sgl_icd_idx[12]; /* DWORD 2 */
+ u8 rsvd0[20]; /* DWORD 2 */
+ u8 exp_data_sn[32]; /* DWORD 3 */
+ u8 iscsi_bhs_addr_hi[32]; /* DWORD 4 */
+ u8 iscsi_bhs_addr_lo[32]; /* DWORD 5 */
+ u8 cmdsn_itt[32]; /* DWORD 6 */
+ u8 dif_ref_tag[32]; /* DWORD 7 */
+ u8 sge0_addr_hi[32]; /* DWORD 8 */
+ u8 sge0_addr_lo[32]; /* DWORD 9 */
+ u8 sge0_offset[22]; /* DWORD 10 */
+ u8 pbs; /* DWORD 10 */
+ u8 dif_mode[2]; /* DWORD 10 */
+ u8 rsvd1[6]; /* DWORD 10 */
+ u8 sge0_last; /* DWORD 10 */
+ u8 sge0_len[17]; /* DWORD 11 */
+ u8 dif_meta_tag[14]; /* DWORD 11 */
+ u8 sge0_in_ddr; /* DWORD 11 */
+ u8 sge1_addr_hi[32]; /* DWORD 12 */
+ u8 sge1_addr_lo[32]; /* DWORD 13 */
+ u8 sge1_r2t_offset[22]; /* DWORD 14 */
+ u8 rsvd2[9]; /* DWORD 14 */
+ u8 sge1_last; /* DWORD 14 */
+ u8 sge1_len[17]; /* DWORD 15 */
+ u8 ref_sgl_icd_idx[12]; /* DWORD 15 */
+ u8 rsvd3[2]; /* DWORD 15 */
+ u8 sge1_in_ddr; /* DWORD 15 */
+
+} __packed;
+
+struct amap_iscsi_wrb_v2 {
+ u8 r2t_exp_dtl[25]; /* DWORD 0 */
+ u8 rsvd0[2]; /* DWORD 0*/
+ u8 type[5]; /* DWORD 0 */
+ u8 ptr2nextwrb[8]; /* DWORD 1 */
+ u8 wrb_idx[8]; /* DWORD 1 */
+ u8 lun[16]; /* DWORD 1 */
+ u8 sgl_idx[16]; /* DWORD 2 */
+ u8 ref_sgl_icd_idx[16]; /* DWORD 2 */
+ u8 exp_data_sn[32]; /* DWORD 3 */
+ u8 iscsi_bhs_addr_hi[32]; /* DWORD 4 */
+ u8 iscsi_bhs_addr_lo[32]; /* DWORD 5 */
+ u8 cq_id[16]; /* DWORD 6 */
+ u8 rsvd1[16]; /* DWORD 6 */
+ u8 cmdsn_itt[32]; /* DWORD 7 */
+ u8 sge0_addr_hi[32]; /* DWORD 8 */
+ u8 sge0_addr_lo[32]; /* DWORD 9 */
+ u8 sge0_offset[24]; /* DWORD 10 */
+ u8 rsvd2[7]; /* DWORD 10 */
+ u8 sge0_last; /* DWORD 10 */
+ u8 sge0_len[17]; /* DWORD 11 */
+ u8 rsvd3[7]; /* DWORD 11 */
+ u8 diff_enbl; /* DWORD 11 */
+ u8 u_run; /* DWORD 11 */
+ u8 o_run; /* DWORD 11 */
+ u8 invld; /* DWORD 11 */
+ u8 dsp; /* DWORD 11 */
+ u8 dmsg; /* DWORD 11 */
+ u8 rsvd4; /* DWORD 11 */
+ u8 lt; /* DWORD 11 */
+ u8 sge1_addr_hi[32]; /* DWORD 12 */
+ u8 sge1_addr_lo[32]; /* DWORD 13 */
+ u8 sge1_r2t_offset[24]; /* DWORD 14 */
+ u8 rsvd5[7]; /* DWORD 14 */
+ u8 sge1_last; /* DWORD 14 */
+ u8 sge1_len[17]; /* DWORD 15 */
+ u8 rsvd6[15]; /* DWORD 15 */
+} __packed;
+
+
+struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid,
+ struct hwi_wrb_context **pcontext);
+void
+free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle);
+
+void beiscsi_free_mgmt_task_handles(struct beiscsi_conn *beiscsi_conn,
+ struct iscsi_task *task);
+
+void hwi_ring_cq_db(struct beiscsi_hba *phba,
+ unsigned int id, unsigned int num_processed,
+ unsigned char rearm);
+
+unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq, int budget);
+void beiscsi_process_mcc_cq(struct beiscsi_hba *phba);
+
+struct pdu_nop_out {
+ u32 dw[12];
+};
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_pdu_nop_out {
+ u8 opcode[6]; /* opcode 0x00 */
+ u8 i_bit; /* I Bit */
+ u8 x_bit; /* reserved; should be 0 */
+ u8 fp_bit_filler1[7];
+ u8 f_bit; /* always 1 */
+ u8 reserved1[16];
+ u8 ahs_length[8]; /* no AHS */
+ u8 data_len_hi[8];
+ u8 data_len_lo[16]; /* DataSegmentLength */
+ u8 lun[64];
+ u8 itt[32]; /* initiator id for ping or 0xffffffff */
+ u8 ttt[32]; /* target id for ping or 0xffffffff */
+ u8 cmd_sn[32];
+ u8 exp_stat_sn[32];
+ u8 reserved5[128];
+};
+
+#define PDUBASE_OPCODE_MASK 0x0000003F
+#define PDUBASE_DATALENHI_MASK 0x0000FF00
+#define PDUBASE_DATALENLO_MASK 0xFFFF0000
+
+struct pdu_base {
+ u32 dw[16];
+} __packed;
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_pdu_base {
+ u8 opcode[6];
+ u8 i_bit; /* immediate bit */
+ u8 x_bit; /* reserved, always 0 */
+ u8 reserved1[24]; /* opcode-specific fields */
+ u8 ahs_length[8]; /* length units is 4 byte words */
+ u8 data_len_hi[8];
+ u8 data_len_lo[16]; /* DatasegmentLength */
+ u8 lun[64]; /* lun or opcode-specific fields */
+ u8 itt[32]; /* initiator task tag */
+ u8 reserved4[224];
+};
+
+struct iscsi_target_context_update_wrb {
+ u32 dw[16];
+} __packed;
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+#define BE_TGT_CTX_UPDT_CMD 0x07
+struct amap_iscsi_target_context_update_wrb {
+ u8 lun[14]; /* DWORD 0 */
+ u8 lt; /* DWORD 0 */
+ u8 invld; /* DWORD 0 */
+ u8 wrb_idx[8]; /* DWORD 0 */
+ u8 dsp; /* DWORD 0 */
+ u8 dmsg; /* DWORD 0 */
+ u8 undr_run; /* DWORD 0 */
+ u8 over_run; /* DWORD 0 */
+ u8 type[4]; /* DWORD 0 */
+ u8 ptr2nextwrb[8]; /* DWORD 1 */
+ u8 max_burst_length[19]; /* DWORD 1 */
+ u8 rsvd0[5]; /* DWORD 1 */
+ u8 rsvd1[15]; /* DWORD 2 */
+ u8 max_send_data_segment_length[17]; /* DWORD 2 */
+ u8 first_burst_length[14]; /* DWORD 3 */
+ u8 rsvd2[2]; /* DWORD 3 */
+ u8 tx_wrbindex_drv_msg[8]; /* DWORD 3 */
+ u8 rsvd3[5]; /* DWORD 3 */
+ u8 session_state[3]; /* DWORD 3 */
+ u8 rsvd4[16]; /* DWORD 4 */
+ u8 tx_jumbo; /* DWORD 4 */
+ u8 hde; /* DWORD 4 */
+ u8 dde; /* DWORD 4 */
+ u8 erl[2]; /* DWORD 4 */
+ u8 domain_id[5]; /* DWORD 4 */
+ u8 mode; /* DWORD 4 */
+ u8 imd; /* DWORD 4 */
+ u8 ir2t; /* DWORD 4 */
+ u8 notpredblq[2]; /* DWORD 4 */
+ u8 compltonack; /* DWORD 4 */
+ u8 stat_sn[32]; /* DWORD 5 */
+ u8 pad_buffer_addr_hi[32]; /* DWORD 6 */
+ u8 pad_buffer_addr_lo[32]; /* DWORD 7 */
+ u8 pad_addr_hi[32]; /* DWORD 8 */
+ u8 pad_addr_lo[32]; /* DWORD 9 */
+ u8 rsvd5[32]; /* DWORD 10 */
+ u8 rsvd6[32]; /* DWORD 11 */
+ u8 rsvd7[32]; /* DWORD 12 */
+ u8 rsvd8[32]; /* DWORD 13 */
+ u8 rsvd9[32]; /* DWORD 14 */
+ u8 rsvd10[32]; /* DWORD 15 */
+
+} __packed;
+
+#define BEISCSI_MAX_RECV_DATASEG_LEN (64 * 1024)
+#define BEISCSI_MAX_CXNS 1
+struct amap_iscsi_target_context_update_wrb_v2 {
+ u8 max_burst_length[24]; /* DWORD 0 */
+ u8 rsvd0[3]; /* DWORD 0 */
+ u8 type[5]; /* DWORD 0 */
+ u8 ptr2nextwrb[8]; /* DWORD 1 */
+ u8 wrb_idx[8]; /* DWORD 1 */
+ u8 rsvd1[16]; /* DWORD 1 */
+ u8 max_send_data_segment_length[24]; /* DWORD 2 */
+ u8 rsvd2[8]; /* DWORD 2 */
+ u8 first_burst_length[24]; /* DWORD 3 */
+ u8 rsvd3[8]; /* DOWRD 3 */
+ u8 max_r2t[16]; /* DWORD 4 */
+ u8 rsvd4; /* DWORD 4 */
+ u8 hde; /* DWORD 4 */
+ u8 dde; /* DWORD 4 */
+ u8 erl[2]; /* DWORD 4 */
+ u8 rsvd5[6]; /* DWORD 4 */
+ u8 imd; /* DWORD 4 */
+ u8 ir2t; /* DWORD 4 */
+ u8 rsvd6[3]; /* DWORD 4 */
+ u8 stat_sn[32]; /* DWORD 5 */
+ u8 rsvd7[32]; /* DWORD 6 */
+ u8 rsvd8[32]; /* DWORD 7 */
+ u8 max_recv_dataseg_len[24]; /* DWORD 8 */
+ u8 rsvd9[8]; /* DWORD 8 */
+ u8 rsvd10[32]; /* DWORD 9 */
+ u8 rsvd11[32]; /* DWORD 10 */
+ u8 max_cxns[16]; /* DWORD 11 */
+ u8 rsvd12[11]; /* DWORD 11*/
+ u8 invld; /* DWORD 11 */
+ u8 rsvd13;/* DWORD 11*/
+ u8 dmsg; /* DWORD 11 */
+ u8 data_seq_inorder; /* DWORD 11 */
+ u8 pdu_seq_inorder; /* DWORD 11 */
+ u8 rsvd14[32]; /*DWORD 12 */
+ u8 rsvd15[32]; /* DWORD 13 */
+ u8 rsvd16[32]; /* DWORD 14 */
+ u8 rsvd17[32]; /* DWORD 15 */
+} __packed;
+
+
+struct be_ring {
+ u32 pages; /* queue size in pages */
+ u32 id; /* queue id assigned by beklib */
+ u32 num; /* number of elements in queue */
+ u32 cidx; /* consumer index */
+ u32 pidx; /* producer index -- not used by most rings */
+ u32 item_size; /* size in bytes of one object */
+ u8 ulp_num; /* ULP to which CID binded */
+ u16 register_set;
+ u16 doorbell_format;
+ u32 doorbell_offset;
+
+ void *va; /* The virtual address of the ring. This
+ * should be last to allow 32 & 64 bit debugger
+ * extensions to work.
+ */
+};
+
+struct hwi_controller {
+ struct hwi_wrb_context *wrb_context;
+ struct be_ring default_pdu_hdr[BEISCSI_ULP_COUNT];
+ struct be_ring default_pdu_data[BEISCSI_ULP_COUNT];
+ struct hwi_context_memory *phwi_ctxt;
+};
+
+enum hwh_type_enum {
+ HWH_TYPE_IO = 1,
+ HWH_TYPE_LOGOUT = 2,
+ HWH_TYPE_TMF = 3,
+ HWH_TYPE_NOP = 4,
+ HWH_TYPE_IO_RD = 5,
+ HWH_TYPE_LOGIN = 11,
+ HWH_TYPE_INVALID = 0xFFFFFFFF
+};
+
+struct wrb_handle {
+ unsigned short wrb_index;
+ struct iscsi_task *pio_handle;
+ struct iscsi_wrb *pwrb;
+};
+
+struct hwi_context_memory {
+ struct be_eq_obj be_eq[MAX_CPUS];
+ struct be_queue_info be_cq[MAX_CPUS - 1];
+
+ struct be_queue_info *be_wrbq;
+ /**
+ * Create array of ULP number for below entries as DEFQ
+ * will be created for both ULP if iSCSI Protocol is
+ * loaded on both ULP.
+ */
+ struct be_queue_info be_def_hdrq[BEISCSI_ULP_COUNT];
+ struct be_queue_info be_def_dataq[BEISCSI_ULP_COUNT];
+ struct hd_async_context *pasync_ctx[BEISCSI_ULP_COUNT];
+};
+
+void beiscsi_start_boot_work(struct beiscsi_hba *phba, unsigned int s_handle);
+
+/* Logging related definitions */
+#define BEISCSI_LOG_INIT 0x0001 /* Initialization events */
+#define BEISCSI_LOG_MBOX 0x0002 /* Mailbox Events */
+#define BEISCSI_LOG_MISC 0x0004 /* Miscllaneous Events */
+#define BEISCSI_LOG_EH 0x0008 /* Error Handler */
+#define BEISCSI_LOG_IO 0x0010 /* IO Code Path */
+#define BEISCSI_LOG_CONFIG 0x0020 /* CONFIG Code Path */
+#define BEISCSI_LOG_ISCSI 0x0040 /* SCSI/iSCSI Protocol related Logs */
+
+#define __beiscsi_log(phba, level, fmt, arg...) \
+ shost_printk(level, phba->shost, fmt, __LINE__, ##arg)
+
+#define beiscsi_log(phba, level, mask, fmt, arg...) \
+do { \
+ uint32_t log_value = phba->attr_log_enable; \
+ if (((mask) & log_value) || (level[1] <= '3')) \
+ __beiscsi_log(phba, level, fmt, ##arg); \
+} while (0);
+
+#endif
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
new file mode 100644
index 000000000..4e899ec14
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -0,0 +1,1559 @@
+/*
+ * This file is part of the Emulex Linux Device Driver for Enterprise iSCSI
+ * Host Bus Adapters. Refer to the README file included with this package
+ * for driver version and adapter compatibility.
+ *
+ * Copyright (c) 2018 Broadcom. All Rights Reserved.
+ * The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
+ *
+ * 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. ALL EXPRESS
+ * OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
+ * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
+ * OR NON-INFRINGEMENT, ARE DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH
+ * DISCLAIMERS ARE HELD TO BE LEGALLY INVALID.
+ * See the GNU General Public License for more details, a copy of which
+ * can be found in the file COPYING included with this package.
+ *
+ * Contact Information:
+ * linux-drivers@broadcom.com
+ *
+ */
+
+#include <linux/bsg-lib.h>
+#include <scsi/scsi_transport_iscsi.h>
+#include <scsi/scsi_bsg_iscsi.h>
+#include "be_mgmt.h"
+#include "be_iscsi.h"
+#include "be_main.h"
+
+unsigned int mgmt_vendor_specific_fw_cmd(struct be_ctrl_info *ctrl,
+ struct beiscsi_hba *phba,
+ struct bsg_job *job,
+ struct be_dma_mem *nonemb_cmd)
+{
+ struct be_mcc_wrb *wrb;
+ struct be_sge *mcc_sge;
+ unsigned int tag = 0;
+ struct iscsi_bsg_request *bsg_req = job->request;
+ struct be_bsg_vendor_cmd *req = nonemb_cmd->va;
+ unsigned short region, sector_size, sector, offset;
+
+ nonemb_cmd->size = job->request_payload.payload_len;
+ memset(nonemb_cmd->va, 0, nonemb_cmd->size);
+ region = bsg_req->rqst_data.h_vendor.vendor_cmd[1];
+ sector_size = bsg_req->rqst_data.h_vendor.vendor_cmd[2];
+ sector = bsg_req->rqst_data.h_vendor.vendor_cmd[3];
+ offset = bsg_req->rqst_data.h_vendor.vendor_cmd[4];
+ req->region = region;
+ req->sector = sector;
+ req->offset = offset;
+
+ if (mutex_lock_interruptible(&ctrl->mbox_lock))
+ return 0;
+ switch (bsg_req->rqst_data.h_vendor.vendor_cmd[0]) {
+ case BEISCSI_WRITE_FLASH:
+ offset = sector * sector_size + offset;
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_WRITE_FLASH, sizeof(*req));
+ sg_copy_to_buffer(job->request_payload.sg_list,
+ job->request_payload.sg_cnt,
+ nonemb_cmd->va + offset, job->request_len);
+ break;
+ case BEISCSI_READ_FLASH:
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_READ_FLASH, sizeof(*req));
+ break;
+ default:
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+ "BG_%d : Unsupported cmd = 0x%x\n\n",
+ bsg_req->rqst_data.h_vendor.vendor_cmd[0]);
+
+ mutex_unlock(&ctrl->mbox_lock);
+ return -EPERM;
+ }
+
+ wrb = alloc_mcc_wrb(phba, &tag);
+ if (!wrb) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return 0;
+ }
+
+ mcc_sge = nonembedded_sgl(wrb);
+ be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false,
+ job->request_payload.sg_cnt);
+ mcc_sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
+ mcc_sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
+ mcc_sge->len = cpu_to_le32(nonemb_cmd->size);
+
+ be_mcc_notify(phba, tag);
+
+ mutex_unlock(&ctrl->mbox_lock);
+ return tag;
+}
+
+/**
+ * mgmt_open_connection()- Establish a TCP CXN
+ * @phba: driver priv structure
+ * @dst_addr: Destination Address
+ * @beiscsi_ep: ptr to device endpoint struct
+ * @nonemb_cmd: ptr to memory allocated for command
+ *
+ * return
+ * Success: Tag number of the MBX Command issued
+ * Failure: Error code
+ **/
+int mgmt_open_connection(struct beiscsi_hba *phba,
+ struct sockaddr *dst_addr,
+ struct beiscsi_endpoint *beiscsi_ep,
+ struct be_dma_mem *nonemb_cmd)
+{
+ struct hwi_controller *phwi_ctrlr;
+ struct hwi_context_memory *phwi_context;
+ struct sockaddr_in *daddr_in = (struct sockaddr_in *)dst_addr;
+ struct sockaddr_in6 *daddr_in6 = (struct sockaddr_in6 *)dst_addr;
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_mcc_wrb *wrb;
+ struct tcp_connect_and_offload_in_v1 *req;
+ unsigned short def_hdr_id;
+ unsigned short def_data_id;
+ struct phys_addr template_address = { 0, 0 };
+ struct phys_addr *ptemplate_address;
+ unsigned int tag = 0;
+ unsigned int i, ulp_num;
+ unsigned short cid = beiscsi_ep->ep_cid;
+ struct be_sge *sge;
+
+ if (dst_addr->sa_family != PF_INET && dst_addr->sa_family != PF_INET6) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BG_%d : unknown addr family %d\n",
+ dst_addr->sa_family);
+ return 0;
+ }
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+
+ ulp_num = phwi_ctrlr->wrb_context[BE_GET_CRI_FROM_CID(cid)].ulp_num;
+
+ def_hdr_id = (unsigned short)HWI_GET_DEF_HDRQ_ID(phba, ulp_num);
+ def_data_id = (unsigned short)HWI_GET_DEF_BUFQ_ID(phba, ulp_num);
+
+ ptemplate_address = &template_address;
+ ISCSI_GET_PDU_TEMPLATE_ADDRESS(phba, ptemplate_address);
+ if (mutex_lock_interruptible(&ctrl->mbox_lock))
+ return 0;
+ wrb = alloc_mcc_wrb(phba, &tag);
+ if (!wrb) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return 0;
+ }
+
+ sge = nonembedded_sgl(wrb);
+ req = nonemb_cmd->va;
+ memset(req, 0, sizeof(*req));
+
+ be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false, 1);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD,
+ nonemb_cmd->size);
+ if (dst_addr->sa_family == PF_INET) {
+ __be32 s_addr = daddr_in->sin_addr.s_addr;
+ req->ip_address.ip_type = BEISCSI_IP_TYPE_V4;
+ req->ip_address.addr[0] = s_addr & 0x000000ff;
+ req->ip_address.addr[1] = (s_addr & 0x0000ff00) >> 8;
+ req->ip_address.addr[2] = (s_addr & 0x00ff0000) >> 16;
+ req->ip_address.addr[3] = (s_addr & 0xff000000) >> 24;
+ req->tcp_port = ntohs(daddr_in->sin_port);
+ beiscsi_ep->dst_addr = daddr_in->sin_addr.s_addr;
+ beiscsi_ep->dst_tcpport = ntohs(daddr_in->sin_port);
+ beiscsi_ep->ip_type = BEISCSI_IP_TYPE_V4;
+ } else {
+ /* else its PF_INET6 family */
+ req->ip_address.ip_type = BEISCSI_IP_TYPE_V6;
+ memcpy(&req->ip_address.addr,
+ &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
+ req->tcp_port = ntohs(daddr_in6->sin6_port);
+ beiscsi_ep->dst_tcpport = ntohs(daddr_in6->sin6_port);
+ memcpy(&beiscsi_ep->dst6_addr,
+ &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
+ beiscsi_ep->ip_type = BEISCSI_IP_TYPE_V6;
+ }
+ req->cid = cid;
+ i = phba->nxt_cqid++;
+ if (phba->nxt_cqid == phba->num_cpus)
+ phba->nxt_cqid = 0;
+ req->cq_id = phwi_context->be_cq[i].id;
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BG_%d : i=%d cq_id=%d\n", i, req->cq_id);
+ req->defq_id = def_hdr_id;
+ req->hdr_ring_id = def_hdr_id;
+ req->data_ring_id = def_data_id;
+ req->do_offload = 1;
+ req->dataout_template_pa.lo = ptemplate_address->lo;
+ req->dataout_template_pa.hi = ptemplate_address->hi;
+ sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
+ sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
+ sge->len = cpu_to_le32(nonemb_cmd->size);
+
+ if (!is_chip_be2_be3r(phba)) {
+ req->hdr.version = MBX_CMD_VER1;
+ req->tcp_window_size = 0x8000;
+ req->tcp_window_scale_count = 2;
+ }
+
+ be_mcc_notify(phba, tag);
+ mutex_unlock(&ctrl->mbox_lock);
+ return tag;
+}
+
+/**
+ * beiscsi_exec_nemb_cmd()- execute non-embedded MBX cmd
+ * @phba: driver priv structure
+ * @nonemb_cmd: DMA address of the MBX command to be issued
+ * @cbfn: callback func on MCC completion
+ * @resp_buf: buffer to copy the MBX cmd response
+ * @resp_buf_len: response length to be copied
+ *
+ **/
+static int beiscsi_exec_nemb_cmd(struct beiscsi_hba *phba,
+ struct be_dma_mem *nonemb_cmd,
+ void (*cbfn)(struct beiscsi_hba *,
+ unsigned int),
+ void *resp_buf, u32 resp_buf_len)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_mcc_wrb *wrb;
+ struct be_sge *sge;
+ unsigned int tag;
+ int rc = 0;
+
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = alloc_mcc_wrb(phba, &tag);
+ if (!wrb) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return -ENOMEM;
+ }
+
+ sge = nonembedded_sgl(wrb);
+ be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false, 1);
+ sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
+ sge->pa_lo = cpu_to_le32(lower_32_bits(nonemb_cmd->dma));
+ sge->len = cpu_to_le32(nonemb_cmd->size);
+
+ if (cbfn) {
+ struct be_dma_mem *tag_mem;
+
+ set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
+ ctrl->ptag_state[tag].cbfn = cbfn;
+ tag_mem = &phba->ctrl.ptag_state[tag].tag_mem_state;
+
+ /* store DMA mem to be freed in callback */
+ tag_mem->size = nonemb_cmd->size;
+ tag_mem->va = nonemb_cmd->va;
+ tag_mem->dma = nonemb_cmd->dma;
+ }
+ be_mcc_notify(phba, tag);
+ mutex_unlock(&ctrl->mbox_lock);
+
+ /* with cbfn set, its async cmd, don't wait */
+ if (cbfn)
+ return 0;
+
+ rc = beiscsi_mccq_compl_wait(phba, tag, NULL, nonemb_cmd);
+
+ /* copy the response, if any */
+ if (resp_buf)
+ memcpy(resp_buf, nonemb_cmd->va, resp_buf_len);
+ return rc;
+}
+
+static int beiscsi_prep_nemb_cmd(struct beiscsi_hba *phba,
+ struct be_dma_mem *cmd,
+ u8 subsystem, u8 opcode, u32 size)
+{
+ cmd->va = dma_alloc_coherent(&phba->ctrl.pdev->dev, size, &cmd->dma,
+ GFP_KERNEL);
+ if (!cmd->va) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+ "BG_%d : Failed to allocate memory for if info\n");
+ return -ENOMEM;
+ }
+ cmd->size = size;
+ be_cmd_hdr_prepare(cmd->va, subsystem, opcode, size);
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BG_%d : subsystem %u cmd %u size %u\n",
+ subsystem, opcode, size);
+ return 0;
+}
+
+static void beiscsi_free_nemb_cmd(struct beiscsi_hba *phba,
+ struct be_dma_mem *cmd, int rc)
+{
+ /*
+ * If FW is busy the DMA buffer is saved with the tag. When the cmd
+ * completes this buffer is freed.
+ */
+ if (rc == -EBUSY)
+ return;
+
+ dma_free_coherent(&phba->ctrl.pdev->dev, cmd->size, cmd->va, cmd->dma);
+}
+
+static void __beiscsi_eq_delay_compl(struct beiscsi_hba *phba, unsigned int tag)
+{
+ struct be_dma_mem *tag_mem;
+
+ /* status is ignored */
+ __beiscsi_mcc_compl_status(phba, tag, NULL, NULL);
+ tag_mem = &phba->ctrl.ptag_state[tag].tag_mem_state;
+ if (tag_mem->size) {
+ dma_free_coherent(&phba->pcidev->dev, tag_mem->size,
+ tag_mem->va, tag_mem->dma);
+ tag_mem->size = 0;
+ }
+}
+
+int beiscsi_modify_eq_delay(struct beiscsi_hba *phba,
+ struct be_set_eqd *set_eqd, int num)
+{
+ struct be_cmd_req_modify_eq_delay *req;
+ struct be_dma_mem nonemb_cmd;
+ int i, rc;
+
+ rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_MODIFY_EQ_DELAY, sizeof(*req));
+ if (rc)
+ return rc;
+
+ req = nonemb_cmd.va;
+ req->num_eq = cpu_to_le32(num);
+ for (i = 0; i < num; i++) {
+ req->delay[i].eq_id = cpu_to_le32(set_eqd[i].eq_id);
+ req->delay[i].phase = 0;
+ req->delay[i].delay_multiplier =
+ cpu_to_le32(set_eqd[i].delay_multiplier);
+ }
+
+ rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, __beiscsi_eq_delay_compl,
+ NULL, 0);
+ if (rc) {
+ /*
+ * Only free on failure. Async cmds are handled like -EBUSY
+ * where it's handled for us.
+ */
+ beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
+ }
+ return rc;
+}
+
+/**
+ * beiscsi_get_initiator_name - read initiator name from flash
+ * @phba: device priv structure
+ * @name: buffer pointer
+ * @cfg: fetch user configured
+ *
+ */
+int beiscsi_get_initiator_name(struct beiscsi_hba *phba, char *name, bool cfg)
+{
+ struct be_dma_mem nonemb_cmd;
+ struct be_cmd_hba_name resp;
+ struct be_cmd_hba_name *req;
+ int rc;
+
+ rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI_INI,
+ OPCODE_ISCSI_INI_CFG_GET_HBA_NAME, sizeof(resp));
+ if (rc)
+ return rc;
+
+ req = nonemb_cmd.va;
+ if (cfg)
+ req->hdr.version = 1;
+ rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL,
+ &resp, sizeof(resp));
+ beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
+ if (rc) {
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+ "BS_%d : Initiator Name MBX Failed\n");
+ return rc;
+ }
+ rc = sprintf(name, "%s\n", resp.initiator_name);
+ return rc;
+}
+
+unsigned int beiscsi_if_get_handle(struct beiscsi_hba *phba)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_get_all_if_id_req *req;
+ struct be_cmd_get_all_if_id_req *pbe_allid;
+ unsigned int tag;
+ int status = 0;
+
+ if (mutex_lock_interruptible(&ctrl->mbox_lock))
+ return -EINTR;
+ wrb = alloc_mcc_wrb(phba, &tag);
+ if (!wrb) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return -ENOMEM;
+ }
+
+ req = embedded_payload(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_NTWK_GET_ALL_IF_ID,
+ sizeof(*req));
+ be_mcc_notify(phba, tag);
+ mutex_unlock(&ctrl->mbox_lock);
+
+ status = beiscsi_mccq_compl_wait(phba, tag, &wrb, NULL);
+ if (status) {
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+ "BG_%d : %s failed: %d\n", __func__, status);
+ return -EBUSY;
+ }
+
+ pbe_allid = embedded_payload(wrb);
+ /* we now support only one interface per function */
+ phba->interface_handle = pbe_allid->if_hndl_list[0];
+
+ return status;
+}
+
+static inline bool beiscsi_if_zero_ip(u8 *ip, u32 ip_type)
+{
+ u32 len;
+
+ len = (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN;
+ while (len && !ip[len - 1])
+ len--;
+ return (len == 0);
+}
+
+static int beiscsi_if_mod_gw(struct beiscsi_hba *phba,
+ u32 action, u32 ip_type, u8 *gw)
+{
+ struct be_cmd_set_def_gateway_req *req;
+ struct be_dma_mem nonemb_cmd;
+ int rt_val;
+
+ rt_val = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_NTWK_MODIFY_DEFAULT_GATEWAY,
+ sizeof(*req));
+ if (rt_val)
+ return rt_val;
+
+ req = nonemb_cmd.va;
+ req->action = action;
+ req->ip_addr.ip_type = ip_type;
+ memcpy(req->ip_addr.addr, gw,
+ (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN);
+ rt_val = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);
+ beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rt_val);
+ return rt_val;
+}
+
+int beiscsi_if_set_gw(struct beiscsi_hba *phba, u32 ip_type, u8 *gw)
+{
+ struct be_cmd_get_def_gateway_resp gw_resp;
+ int rt_val;
+
+ memset(&gw_resp, 0, sizeof(gw_resp));
+ rt_val = beiscsi_if_get_gw(phba, ip_type, &gw_resp);
+ if (rt_val) {
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+ "BG_%d : Failed to Get Gateway Addr\n");
+ return rt_val;
+ }
+
+ if (!beiscsi_if_zero_ip(gw_resp.ip_addr.addr, ip_type)) {
+ rt_val = beiscsi_if_mod_gw(phba, IP_ACTION_DEL, ip_type,
+ gw_resp.ip_addr.addr);
+ if (rt_val) {
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+ "BG_%d : Failed to clear Gateway Addr Set\n");
+ return rt_val;
+ }
+ }
+
+ rt_val = beiscsi_if_mod_gw(phba, IP_ACTION_ADD, ip_type, gw);
+ if (rt_val)
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+ "BG_%d : Failed to Set Gateway Addr\n");
+
+ return rt_val;
+}
+
+int beiscsi_if_get_gw(struct beiscsi_hba *phba, u32 ip_type,
+ struct be_cmd_get_def_gateway_resp *resp)
+{
+ struct be_cmd_get_def_gateway_req *req;
+ struct be_dma_mem nonemb_cmd;
+ int rc;
+
+ rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_NTWK_GET_DEFAULT_GATEWAY,
+ sizeof(*resp));
+ if (rc)
+ return rc;
+
+ req = nonemb_cmd.va;
+ req->ip_type = ip_type;
+
+ rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, resp,
+ sizeof(*resp));
+ beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
+ return rc;
+}
+
+static int
+beiscsi_if_clr_ip(struct beiscsi_hba *phba,
+ struct be_cmd_get_if_info_resp *if_info)
+{
+ struct be_cmd_set_ip_addr_req *req;
+ struct be_dma_mem nonemb_cmd;
+ int rc;
+
+ rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR,
+ sizeof(*req));
+ if (rc)
+ return rc;
+
+ req = nonemb_cmd.va;
+ req->ip_params.record_entry_count = 1;
+ req->ip_params.ip_record.action = IP_ACTION_DEL;
+ req->ip_params.ip_record.interface_hndl =
+ phba->interface_handle;
+ req->ip_params.ip_record.ip_addr.size_of_structure =
+ sizeof(struct be_ip_addr_subnet_format);
+ req->ip_params.ip_record.ip_addr.ip_type = if_info->ip_addr.ip_type;
+ memcpy(req->ip_params.ip_record.ip_addr.addr,
+ if_info->ip_addr.addr,
+ sizeof(if_info->ip_addr.addr));
+ memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,
+ if_info->ip_addr.subnet_mask,
+ sizeof(if_info->ip_addr.subnet_mask));
+ rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);
+ if (rc < 0 || req->ip_params.ip_record.status) {
+ beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+ "BG_%d : failed to clear IP: rc %d status %d\n",
+ rc, req->ip_params.ip_record.status);
+ }
+ beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
+ return rc;
+}
+
+static int
+beiscsi_if_set_ip(struct beiscsi_hba *phba, u8 *ip,
+ u8 *subnet, u32 ip_type)
+{
+ struct be_cmd_set_ip_addr_req *req;
+ struct be_dma_mem nonemb_cmd;
+ uint32_t ip_len;
+ int rc;
+
+ rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR,
+ sizeof(*req));
+ if (rc)
+ return rc;
+
+ req = nonemb_cmd.va;
+ req->ip_params.record_entry_count = 1;
+ req->ip_params.ip_record.action = IP_ACTION_ADD;
+ req->ip_params.ip_record.interface_hndl =
+ phba->interface_handle;
+ req->ip_params.ip_record.ip_addr.size_of_structure =
+ sizeof(struct be_ip_addr_subnet_format);
+ req->ip_params.ip_record.ip_addr.ip_type = ip_type;
+ ip_len = (ip_type < BEISCSI_IP_TYPE_V6) ? IP_V4_LEN : IP_V6_LEN;
+ memcpy(req->ip_params.ip_record.ip_addr.addr, ip, ip_len);
+ if (subnet)
+ memcpy(req->ip_params.ip_record.ip_addr.subnet_mask,
+ subnet, ip_len);
+
+ rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);
+ /**
+ * In some cases, host needs to look into individual record status
+ * even though FW reported success for that IOCTL.
+ */
+ if (rc < 0 || req->ip_params.ip_record.status) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BG_%d : failed to set IP: rc %d status %d\n",
+ rc, req->ip_params.ip_record.status);
+ if (req->ip_params.ip_record.status)
+ rc = -EINVAL;
+ }
+ beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
+ return rc;
+}
+
+int beiscsi_if_en_static(struct beiscsi_hba *phba, u32 ip_type,
+ u8 *ip, u8 *subnet)
+{
+ struct be_cmd_get_if_info_resp *if_info;
+ struct be_cmd_rel_dhcp_req *reldhcp;
+ struct be_dma_mem nonemb_cmd;
+ int rc;
+
+ rc = beiscsi_if_get_info(phba, ip_type, &if_info);
+ if (rc)
+ return rc;
+
+ if (if_info->dhcp_state) {
+ rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd,
+ CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_NTWK_REL_STATELESS_IP_ADDR,
+ sizeof(*reldhcp));
+ if (rc)
+ goto exit;
+
+ reldhcp = nonemb_cmd.va;
+ reldhcp->interface_hndl = phba->interface_handle;
+ reldhcp->ip_type = ip_type;
+ rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);
+ beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
+ if (rc < 0) {
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+ "BG_%d : failed to release existing DHCP: %d\n",
+ rc);
+ goto exit;
+ }
+ }
+
+ /* first delete any IP set */
+ if (!beiscsi_if_zero_ip(if_info->ip_addr.addr, ip_type)) {
+ rc = beiscsi_if_clr_ip(phba, if_info);
+ if (rc)
+ goto exit;
+ }
+
+ /* if ip == NULL then this is called just to release DHCP IP */
+ if (ip)
+ rc = beiscsi_if_set_ip(phba, ip, subnet, ip_type);
+exit:
+ kfree(if_info);
+ return rc;
+}
+
+int beiscsi_if_en_dhcp(struct beiscsi_hba *phba, u32 ip_type)
+{
+ struct be_cmd_get_def_gateway_resp gw_resp;
+ struct be_cmd_get_if_info_resp *if_info;
+ struct be_cmd_set_dhcp_req *dhcpreq;
+ struct be_dma_mem nonemb_cmd;
+ u8 *gw;
+ int rc;
+
+ rc = beiscsi_if_get_info(phba, ip_type, &if_info);
+ if (rc)
+ return rc;
+
+ if (if_info->dhcp_state) {
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+ "BG_%d : DHCP Already Enabled\n");
+ goto exit;
+ }
+
+ /* first delete any IP set */
+ if (!beiscsi_if_zero_ip(if_info->ip_addr.addr, ip_type)) {
+ rc = beiscsi_if_clr_ip(phba, if_info);
+ if (rc)
+ goto exit;
+ }
+
+ /* delete gateway settings if mode change is to DHCP */
+ memset(&gw_resp, 0, sizeof(gw_resp));
+ /* use ip_type provided in if_info */
+ rc = beiscsi_if_get_gw(phba, if_info->ip_addr.ip_type, &gw_resp);
+ if (rc) {
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+ "BG_%d : Failed to Get Gateway Addr\n");
+ goto exit;
+ }
+ gw = (u8 *)&gw_resp.ip_addr.addr;
+ if (!beiscsi_if_zero_ip(gw, if_info->ip_addr.ip_type)) {
+ rc = beiscsi_if_mod_gw(phba, IP_ACTION_DEL,
+ if_info->ip_addr.ip_type, gw);
+ if (rc) {
+ beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+ "BG_%d : Failed to clear Gateway Addr Set\n");
+ goto exit;
+ }
+ }
+
+ rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_NTWK_CONFIG_STATELESS_IP_ADDR,
+ sizeof(*dhcpreq));
+ if (rc)
+ goto exit;
+
+ dhcpreq = nonemb_cmd.va;
+ dhcpreq->flags = 1; /* 1 - blocking; 0 - non-blocking */
+ dhcpreq->retry_count = 1;
+ dhcpreq->interface_hndl = phba->interface_handle;
+ dhcpreq->ip_type = ip_type;
+ rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, NULL, 0);
+ beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
+exit:
+ kfree(if_info);
+ return rc;
+}
+
+/**
+ * beiscsi_if_set_vlan()- Issue and wait for CMD completion
+ * @phba: device private structure instance
+ * @vlan_tag: VLAN tag
+ *
+ * Issue the MBX Cmd and wait for the completion of the
+ * command.
+ *
+ * returns
+ * Success: 0
+ * Failure: Non-Xero Value
+ **/
+int beiscsi_if_set_vlan(struct beiscsi_hba *phba, uint16_t vlan_tag)
+{
+ int rc;
+ unsigned int tag;
+
+ tag = be_cmd_set_vlan(phba, vlan_tag);
+ if (!tag) {
+ beiscsi_log(phba, KERN_ERR,
+ (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
+ "BG_%d : VLAN Setting Failed\n");
+ return -EBUSY;
+ }
+
+ rc = beiscsi_mccq_compl_wait(phba, tag, NULL, NULL);
+ if (rc) {
+ beiscsi_log(phba, KERN_ERR,
+ (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
+ "BS_%d : VLAN MBX Cmd Failed\n");
+ return rc;
+ }
+ return rc;
+}
+
+
+int beiscsi_if_get_info(struct beiscsi_hba *phba, int ip_type,
+ struct be_cmd_get_if_info_resp **if_info)
+{
+ struct be_cmd_get_if_info_req *req;
+ struct be_dma_mem nonemb_cmd;
+ uint32_t ioctl_size = sizeof(struct be_cmd_get_if_info_resp);
+ int rc;
+
+ rc = beiscsi_if_get_handle(phba);
+ if (rc)
+ return rc;
+
+ do {
+ rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd,
+ CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_NTWK_GET_IF_INFO,
+ ioctl_size);
+ if (rc)
+ return rc;
+
+ req = nonemb_cmd.va;
+ req->interface_hndl = phba->interface_handle;
+ req->ip_type = ip_type;
+
+ /* Allocate memory for if_info */
+ *if_info = kzalloc(ioctl_size, GFP_KERNEL);
+ if (!*if_info) {
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
+ "BG_%d : Memory Allocation Failure\n");
+
+ beiscsi_free_nemb_cmd(phba, &nonemb_cmd,
+ -ENOMEM);
+ return -ENOMEM;
+ }
+
+ rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, *if_info,
+ ioctl_size);
+
+ /* Check if the error is because of Insufficent_Buffer */
+ if (rc == -EAGAIN) {
+
+ /* Get the new memory size */
+ ioctl_size = ((struct be_cmd_resp_hdr *)
+ nonemb_cmd.va)->actual_resp_len;
+ ioctl_size += sizeof(struct be_cmd_req_hdr);
+
+ beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
+ /* Free the virtual memory */
+ kfree(*if_info);
+ } else {
+ beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
+ break;
+ }
+ } while (true);
+ return rc;
+}
+
+int mgmt_get_nic_conf(struct beiscsi_hba *phba,
+ struct be_cmd_get_nic_conf_resp *nic)
+{
+ struct be_dma_mem nonemb_cmd;
+ int rc;
+
+ rc = beiscsi_prep_nemb_cmd(phba, &nonemb_cmd, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG,
+ sizeof(*nic));
+ if (rc)
+ return rc;
+
+ rc = beiscsi_exec_nemb_cmd(phba, &nonemb_cmd, NULL, nic, sizeof(*nic));
+ beiscsi_free_nemb_cmd(phba, &nonemb_cmd, rc);
+ return rc;
+}
+
+static void beiscsi_boot_process_compl(struct beiscsi_hba *phba,
+ unsigned int tag)
+{
+ struct be_cmd_get_boot_target_resp *boot_resp;
+ struct be_cmd_resp_logout_fw_sess *logo_resp;
+ struct be_cmd_get_session_resp *sess_resp;
+ struct be_mcc_wrb *wrb;
+ struct boot_struct *bs;
+ int boot_work, status;
+
+ if (!test_bit(BEISCSI_HBA_BOOT_WORK, &phba->state)) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BG_%d : %s no boot work %lx\n",
+ __func__, phba->state);
+ return;
+ }
+
+ if (phba->boot_struct.tag != tag) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BG_%d : %s tag mismatch %d:%d\n",
+ __func__, tag, phba->boot_struct.tag);
+ return;
+ }
+ bs = &phba->boot_struct;
+ boot_work = 1;
+ status = 0;
+ switch (bs->action) {
+ case BEISCSI_BOOT_REOPEN_SESS:
+ status = __beiscsi_mcc_compl_status(phba, tag, NULL, NULL);
+ if (!status)
+ bs->action = BEISCSI_BOOT_GET_SHANDLE;
+ else
+ bs->retry--;
+ break;
+ case BEISCSI_BOOT_GET_SHANDLE:
+ status = __beiscsi_mcc_compl_status(phba, tag, &wrb, NULL);
+ if (!status) {
+ boot_resp = embedded_payload(wrb);
+ bs->s_handle = boot_resp->boot_session_handle;
+ }
+ if (bs->s_handle == BE_BOOT_INVALID_SHANDLE) {
+ bs->action = BEISCSI_BOOT_REOPEN_SESS;
+ bs->retry--;
+ } else {
+ bs->action = BEISCSI_BOOT_GET_SINFO;
+ }
+ break;
+ case BEISCSI_BOOT_GET_SINFO:
+ status = __beiscsi_mcc_compl_status(phba, tag, NULL,
+ &bs->nonemb_cmd);
+ if (!status) {
+ sess_resp = bs->nonemb_cmd.va;
+ memcpy(&bs->boot_sess, &sess_resp->session_info,
+ sizeof(struct mgmt_session_info));
+ bs->action = BEISCSI_BOOT_LOGOUT_SESS;
+ } else {
+ __beiscsi_log(phba, KERN_ERR,
+ "BG_%d : get boot session info error : 0x%x\n",
+ status);
+ boot_work = 0;
+ }
+ dma_free_coherent(&phba->ctrl.pdev->dev, bs->nonemb_cmd.size,
+ bs->nonemb_cmd.va, bs->nonemb_cmd.dma);
+ bs->nonemb_cmd.va = NULL;
+ break;
+ case BEISCSI_BOOT_LOGOUT_SESS:
+ status = __beiscsi_mcc_compl_status(phba, tag, &wrb, NULL);
+ if (!status) {
+ logo_resp = embedded_payload(wrb);
+ if (logo_resp->session_status != BE_SESS_STATUS_CLOSE) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BG_%d : FW boot session logout error : 0x%x\n",
+ logo_resp->session_status);
+ }
+ }
+ /* continue to create boot_kset even if logout failed? */
+ bs->action = BEISCSI_BOOT_CREATE_KSET;
+ break;
+ default:
+ break;
+ }
+
+ /* clear the tag so no other completion matches this tag */
+ bs->tag = 0;
+ if (!bs->retry) {
+ boot_work = 0;
+ __beiscsi_log(phba, KERN_ERR,
+ "BG_%d : failed to setup boot target: status %d action %d\n",
+ status, bs->action);
+ }
+ if (!boot_work) {
+ /* wait for next event to start boot_work */
+ clear_bit(BEISCSI_HBA_BOOT_WORK, &phba->state);
+ return;
+ }
+ schedule_work(&phba->boot_work);
+}
+
+/**
+ * beiscsi_boot_logout_sess()- Logout from boot FW session
+ * @phba: Device priv structure instance
+ *
+ * return
+ * the TAG used for MBOX Command
+ *
+ */
+unsigned int beiscsi_boot_logout_sess(struct beiscsi_hba *phba)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_req_logout_fw_sess *req;
+ unsigned int tag;
+
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = alloc_mcc_wrb(phba, &tag);
+ if (!wrb) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return 0;
+ }
+
+ req = embedded_payload(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
+ OPCODE_ISCSI_INI_SESSION_LOGOUT_TARGET,
+ sizeof(struct be_cmd_req_logout_fw_sess));
+ /* Use the session handle copied into boot_sess */
+ req->session_handle = phba->boot_struct.boot_sess.session_handle;
+
+ phba->boot_struct.tag = tag;
+ set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
+ ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
+
+ be_mcc_notify(phba, tag);
+ mutex_unlock(&ctrl->mbox_lock);
+
+ return tag;
+}
+/**
+ * beiscsi_boot_reopen_sess()- Reopen boot session
+ * @phba: Device priv structure instance
+ *
+ * return
+ * the TAG used for MBOX Command
+ *
+ **/
+unsigned int beiscsi_boot_reopen_sess(struct beiscsi_hba *phba)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_reopen_session_req *req;
+ unsigned int tag;
+
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = alloc_mcc_wrb(phba, &tag);
+ if (!wrb) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return 0;
+ }
+
+ req = embedded_payload(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
+ OPCODE_ISCSI_INI_DRIVER_REOPEN_ALL_SESSIONS,
+ sizeof(struct be_cmd_reopen_session_resp));
+ req->reopen_type = BE_REOPEN_BOOT_SESSIONS;
+ req->session_handle = BE_BOOT_INVALID_SHANDLE;
+
+ phba->boot_struct.tag = tag;
+ set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
+ ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
+
+ be_mcc_notify(phba, tag);
+ mutex_unlock(&ctrl->mbox_lock);
+ return tag;
+}
+
+
+/**
+ * beiscsi_boot_get_sinfo()- Get boot session info
+ * @phba: device priv structure instance
+ *
+ * Fetches the boot_struct.s_handle info from FW.
+ * return
+ * the TAG used for MBOX Command
+ *
+ **/
+unsigned int beiscsi_boot_get_sinfo(struct beiscsi_hba *phba)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_cmd_get_session_req *req;
+ struct be_dma_mem *nonemb_cmd;
+ struct be_mcc_wrb *wrb;
+ struct be_sge *sge;
+ unsigned int tag;
+
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = alloc_mcc_wrb(phba, &tag);
+ if (!wrb) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return 0;
+ }
+
+ nonemb_cmd = &phba->boot_struct.nonemb_cmd;
+ nonemb_cmd->size = sizeof(struct be_cmd_get_session_resp);
+ nonemb_cmd->va = dma_alloc_coherent(&phba->ctrl.pdev->dev,
+ nonemb_cmd->size,
+ &nonemb_cmd->dma,
+ GFP_KERNEL);
+ if (!nonemb_cmd->va) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return 0;
+ }
+
+ req = nonemb_cmd->va;
+ memset(req, 0, sizeof(*req));
+ sge = nonembedded_sgl(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
+ OPCODE_ISCSI_INI_SESSION_GET_A_SESSION,
+ sizeof(struct be_cmd_get_session_resp));
+ req->session_handle = phba->boot_struct.s_handle;
+ sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
+ sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
+ sge->len = cpu_to_le32(nonemb_cmd->size);
+
+ phba->boot_struct.tag = tag;
+ set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
+ ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
+
+ be_mcc_notify(phba, tag);
+ mutex_unlock(&ctrl->mbox_lock);
+ return tag;
+}
+
+unsigned int __beiscsi_boot_get_shandle(struct beiscsi_hba *phba, int async)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_get_boot_target_req *req;
+ unsigned int tag;
+
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = alloc_mcc_wrb(phba, &tag);
+ if (!wrb) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return 0;
+ }
+
+ req = embedded_payload(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
+ OPCODE_ISCSI_INI_BOOT_GET_BOOT_TARGET,
+ sizeof(struct be_cmd_get_boot_target_resp));
+
+ if (async) {
+ phba->boot_struct.tag = tag;
+ set_bit(MCC_TAG_STATE_ASYNC, &ctrl->ptag_state[tag].tag_state);
+ ctrl->ptag_state[tag].cbfn = beiscsi_boot_process_compl;
+ }
+
+ be_mcc_notify(phba, tag);
+ mutex_unlock(&ctrl->mbox_lock);
+ return tag;
+}
+
+/**
+ * beiscsi_boot_get_shandle()- Get boot session handle
+ * @phba: device priv structure instance
+ * @s_handle: session handle returned for boot session.
+ *
+ * return
+ * Success: 1
+ * Failure: negative
+ *
+ **/
+int beiscsi_boot_get_shandle(struct beiscsi_hba *phba, unsigned int *s_handle)
+{
+ struct be_cmd_get_boot_target_resp *boot_resp;
+ struct be_mcc_wrb *wrb;
+ unsigned int tag;
+ int rc;
+
+ *s_handle = BE_BOOT_INVALID_SHANDLE;
+ /* get configured boot session count and handle */
+ tag = __beiscsi_boot_get_shandle(phba, 0);
+ if (!tag) {
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT,
+ "BG_%d : Getting Boot Target Info Failed\n");
+ return -EAGAIN;
+ }
+
+ rc = beiscsi_mccq_compl_wait(phba, tag, &wrb, NULL);
+ if (rc) {
+ beiscsi_log(phba, KERN_ERR,
+ BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
+ "BG_%d : MBX CMD get_boot_target Failed\n");
+ return -EBUSY;
+ }
+
+ boot_resp = embedded_payload(wrb);
+ /* check if there are any boot targets configured */
+ if (!boot_resp->boot_session_count) {
+ __beiscsi_log(phba, KERN_INFO,
+ "BG_%d : No boot targets configured\n");
+ return -ENXIO;
+ }
+
+ /* only if FW has logged in to the boot target, s_handle is valid */
+ *s_handle = boot_resp->boot_session_handle;
+ return 1;
+}
+
+/**
+ * beiscsi_drvr_ver_disp()- Display the driver Name and Version
+ * @dev: ptr to device not used.
+ * @attr: device attribute, not used.
+ * @buf: contains formatted text driver name and version
+ *
+ * return
+ * size of the formatted string
+ **/
+ssize_t
+beiscsi_drvr_ver_disp(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, BE_NAME "\n");
+}
+
+/**
+ * beiscsi_fw_ver_disp()- Display Firmware Version
+ * @dev: ptr to device not used.
+ * @attr: device attribute, not used.
+ * @buf: contains formatted text Firmware version
+ *
+ * return
+ * size of the formatted string
+ **/
+ssize_t
+beiscsi_fw_ver_disp(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct beiscsi_hba *phba = iscsi_host_priv(shost);
+
+ return snprintf(buf, PAGE_SIZE, "%s\n", phba->fw_ver_str);
+}
+
+/**
+ * beiscsi_active_session_disp()- Display Sessions Active
+ * @dev: ptr to device not used.
+ * @attr: device attribute, not used.
+ * @buf: contains formatted text Session Count
+ *
+ * return
+ * size of the formatted string
+ **/
+ssize_t
+beiscsi_active_session_disp(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct beiscsi_hba *phba = iscsi_host_priv(shost);
+ uint16_t avlbl_cids = 0, ulp_num, len = 0, total_cids = 0;
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+ if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
+ avlbl_cids = BEISCSI_ULP_AVLBL_CID(phba, ulp_num);
+ total_cids = BEISCSI_GET_CID_COUNT(phba, ulp_num);
+ len += scnprintf(buf+len, PAGE_SIZE - len,
+ "ULP%d : %d\n", ulp_num,
+ (total_cids - avlbl_cids));
+ } else
+ len += scnprintf(buf+len, PAGE_SIZE - len,
+ "ULP%d : %d\n", ulp_num, 0);
+ }
+
+ return len;
+}
+
+/**
+ * beiscsi_free_session_disp()- Display Avaliable Session
+ * @dev: ptr to device not used.
+ * @attr: device attribute, not used.
+ * @buf: contains formatted text Session Count
+ *
+ * return
+ * size of the formatted string
+ **/
+ssize_t
+beiscsi_free_session_disp(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct beiscsi_hba *phba = iscsi_host_priv(shost);
+ uint16_t ulp_num, len = 0;
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+ if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported))
+ len += scnprintf(buf+len, PAGE_SIZE - len,
+ "ULP%d : %d\n", ulp_num,
+ BEISCSI_ULP_AVLBL_CID(phba, ulp_num));
+ else
+ len += scnprintf(buf+len, PAGE_SIZE - len,
+ "ULP%d : %d\n", ulp_num, 0);
+ }
+
+ return len;
+}
+
+/**
+ * beiscsi_adap_family_disp()- Display adapter family.
+ * @dev: ptr to device to get priv structure
+ * @attr: device attribute, not used.
+ * @buf: contains formatted text driver name and version
+ *
+ * return
+ * size of the formatted string
+ **/
+ssize_t
+beiscsi_adap_family_disp(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ uint16_t dev_id = 0;
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct beiscsi_hba *phba = iscsi_host_priv(shost);
+
+ dev_id = phba->pcidev->device;
+ switch (dev_id) {
+ case BE_DEVICE_ID1:
+ case OC_DEVICE_ID1:
+ case OC_DEVICE_ID2:
+ return snprintf(buf, PAGE_SIZE,
+ "Obsolete/Unsupported BE2 Adapter Family\n");
+ case BE_DEVICE_ID2:
+ case OC_DEVICE_ID3:
+ return snprintf(buf, PAGE_SIZE, "BE3-R Adapter Family\n");
+ case OC_SKH_ID1:
+ return snprintf(buf, PAGE_SIZE, "Skyhawk-R Adapter Family\n");
+ default:
+ return snprintf(buf, PAGE_SIZE,
+ "Unknown Adapter Family: 0x%x\n", dev_id);
+ }
+}
+
+/**
+ * beiscsi_phys_port_disp()- Display Physical Port Identifier
+ * @dev: ptr to device not used.
+ * @attr: device attribute, not used.
+ * @buf: contains formatted text port identifier
+ *
+ * return
+ * size of the formatted string
+ **/
+ssize_t
+beiscsi_phys_port_disp(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct beiscsi_hba *phba = iscsi_host_priv(shost);
+
+ return snprintf(buf, PAGE_SIZE, "Port Identifier : %u\n",
+ phba->fw_config.phys_port);
+}
+
+void beiscsi_offload_cxn_v0(struct beiscsi_offload_params *params,
+ struct wrb_handle *pwrb_handle,
+ struct be_mem_descriptor *mem_descr,
+ struct hwi_wrb_context *pwrb_context)
+{
+ struct iscsi_wrb *pwrb = pwrb_handle->pwrb;
+
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+ max_send_data_segment_length, pwrb,
+ params->dw[offsetof(struct amap_beiscsi_offload_params,
+ max_send_data_segment_length) / 32]);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, type, pwrb,
+ BE_TGT_CTX_UPDT_CMD);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+ first_burst_length,
+ pwrb,
+ params->dw[offsetof(struct amap_beiscsi_offload_params,
+ first_burst_length) / 32]);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, erl, pwrb,
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
+ erl) / 32] & OFFLD_PARAMS_ERL));
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, dde, pwrb,
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
+ dde) / 32] & OFFLD_PARAMS_DDE) >> 2);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, hde, pwrb,
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
+ hde) / 32] & OFFLD_PARAMS_HDE) >> 3);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ir2t, pwrb,
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
+ ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, imd, pwrb,
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
+ imd) / 32] & OFFLD_PARAMS_IMD) >> 5);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, stat_sn,
+ pwrb,
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
+ exp_statsn) / 32] + 1));
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, wrb_idx,
+ pwrb, pwrb_handle->wrb_index);
+
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+ max_burst_length, pwrb, params->dw[offsetof
+ (struct amap_beiscsi_offload_params,
+ max_burst_length) / 32]);
+
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ptr2nextwrb,
+ pwrb, pwrb_handle->wrb_index);
+ if (pwrb_context->plast_wrb)
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+ ptr2nextwrb,
+ pwrb_context->plast_wrb,
+ pwrb_handle->wrb_index);
+ pwrb_context->plast_wrb = pwrb;
+
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+ session_state, pwrb, 0);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, compltonack,
+ pwrb, 1);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, notpredblq,
+ pwrb, 0);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, mode, pwrb,
+ 0);
+
+ mem_descr += ISCSI_MEM_GLOBAL_HEADER;
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+ pad_buffer_addr_hi, pwrb,
+ mem_descr->mem_array[0].bus_address.u.a32.address_hi);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+ pad_buffer_addr_lo, pwrb,
+ mem_descr->mem_array[0].bus_address.u.a32.address_lo);
+}
+
+void beiscsi_offload_cxn_v2(struct beiscsi_offload_params *params,
+ struct wrb_handle *pwrb_handle,
+ struct hwi_wrb_context *pwrb_context)
+{
+ struct iscsi_wrb *pwrb = pwrb_handle->pwrb;
+
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
+ max_burst_length, pwrb, params->dw[offsetof
+ (struct amap_beiscsi_offload_params,
+ max_burst_length) / 32]);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
+ type, pwrb,
+ BE_TGT_CTX_UPDT_CMD);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
+ ptr2nextwrb,
+ pwrb, pwrb_handle->wrb_index);
+ if (pwrb_context->plast_wrb)
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
+ ptr2nextwrb,
+ pwrb_context->plast_wrb,
+ pwrb_handle->wrb_index);
+ pwrb_context->plast_wrb = pwrb;
+
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, wrb_idx,
+ pwrb, pwrb_handle->wrb_index);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
+ max_send_data_segment_length, pwrb,
+ params->dw[offsetof(struct amap_beiscsi_offload_params,
+ max_send_data_segment_length) / 32]);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
+ first_burst_length, pwrb,
+ params->dw[offsetof(struct amap_beiscsi_offload_params,
+ first_burst_length) / 32]);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
+ max_recv_dataseg_len, pwrb,
+ params->dw[offsetof(struct amap_beiscsi_offload_params,
+ max_recv_data_segment_length) / 32]);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
+ max_cxns, pwrb, BEISCSI_MAX_CXNS);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, erl, pwrb,
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
+ erl) / 32] & OFFLD_PARAMS_ERL));
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, dde, pwrb,
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
+ dde) / 32] & OFFLD_PARAMS_DDE) >> 2);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, hde, pwrb,
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
+ hde) / 32] & OFFLD_PARAMS_HDE) >> 3);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
+ ir2t, pwrb,
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
+ ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, imd, pwrb,
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
+ imd) / 32] & OFFLD_PARAMS_IMD) >> 5);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
+ data_seq_inorder,
+ pwrb,
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
+ data_seq_inorder) / 32] &
+ OFFLD_PARAMS_DATA_SEQ_INORDER) >> 6);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
+ pdu_seq_inorder,
+ pwrb,
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
+ pdu_seq_inorder) / 32] &
+ OFFLD_PARAMS_PDU_SEQ_INORDER) >> 7);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, max_r2t,
+ pwrb,
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
+ max_r2t) / 32] &
+ OFFLD_PARAMS_MAX_R2T) >> 8);
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, stat_sn,
+ pwrb,
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
+ exp_statsn) / 32] + 1));
+}
+
+unsigned int beiscsi_invalidate_cxn(struct beiscsi_hba *phba,
+ struct beiscsi_endpoint *beiscsi_ep)
+{
+ struct be_invalidate_connection_params_in *req;
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_mcc_wrb *wrb;
+ unsigned int tag = 0;
+
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = alloc_mcc_wrb(phba, &tag);
+ if (!wrb) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return 0;
+ }
+
+ req = embedded_payload(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(union be_invalidate_connection_params),
+ true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
+ OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION,
+ sizeof(*req));
+ req->session_handle = beiscsi_ep->fw_handle;
+ req->cid = beiscsi_ep->ep_cid;
+ if (beiscsi_ep->conn)
+ req->cleanup_type = BE_CLEANUP_TYPE_INVALIDATE;
+ else
+ req->cleanup_type = BE_CLEANUP_TYPE_ISSUE_TCP_RST;
+ /**
+ * 0 - non-persistent targets
+ * 1 - save session info on flash
+ */
+ req->save_cfg = 0;
+ be_mcc_notify(phba, tag);
+ mutex_unlock(&ctrl->mbox_lock);
+ return tag;
+}
+
+unsigned int beiscsi_upload_cxn(struct beiscsi_hba *phba,
+ struct beiscsi_endpoint *beiscsi_ep)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_mcc_wrb *wrb;
+ struct be_tcp_upload_params_in *req;
+ unsigned int tag;
+
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = alloc_mcc_wrb(phba, &tag);
+ if (!wrb) {
+ mutex_unlock(&ctrl->mbox_lock);
+ return 0;
+ }
+
+ req = embedded_payload(wrb);
+ be_wrb_hdr_prepare(wrb, sizeof(union be_tcp_upload_params), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_COMMON_TCP_UPLOAD,
+ OPCODE_COMMON_TCP_UPLOAD, sizeof(*req));
+ req->id = beiscsi_ep->ep_cid;
+ if (beiscsi_ep->conn)
+ req->upload_type = BE_UPLOAD_TYPE_GRACEFUL;
+ else
+ req->upload_type = BE_UPLOAD_TYPE_ABORT;
+ be_mcc_notify(phba, tag);
+ mutex_unlock(&ctrl->mbox_lock);
+ return tag;
+}
+
+int beiscsi_mgmt_invalidate_icds(struct beiscsi_hba *phba,
+ struct invldt_cmd_tbl *inv_tbl,
+ unsigned int nents)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct invldt_cmds_params_in *req;
+ struct be_dma_mem nonemb_cmd;
+ struct be_mcc_wrb *wrb;
+ unsigned int i, tag;
+ struct be_sge *sge;
+ int rc;
+
+ if (!nents || nents > BE_INVLDT_CMD_TBL_SZ)
+ return -EINVAL;
+
+ nonemb_cmd.size = sizeof(union be_invldt_cmds_params);
+ nonemb_cmd.va = dma_alloc_coherent(&phba->ctrl.pdev->dev,
+ nonemb_cmd.size, &nonemb_cmd.dma,
+ GFP_KERNEL);
+ if (!nonemb_cmd.va) {
+ beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_EH,
+ "BM_%d : invldt_cmds_params alloc failed\n");
+ return -ENOMEM;
+ }
+
+ mutex_lock(&ctrl->mbox_lock);
+ wrb = alloc_mcc_wrb(phba, &tag);
+ if (!wrb) {
+ mutex_unlock(&ctrl->mbox_lock);
+ dma_free_coherent(&phba->ctrl.pdev->dev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
+ return -ENOMEM;
+ }
+
+ req = nonemb_cmd.va;
+ be_wrb_hdr_prepare(wrb, nonemb_cmd.size, false, 1);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS,
+ sizeof(*req));
+ req->ref_handle = 0;
+ req->cleanup_type = CMD_ISCSI_COMMAND_INVALIDATE;
+ for (i = 0; i < nents; i++) {
+ req->table[i].icd = inv_tbl[i].icd;
+ req->table[i].cid = inv_tbl[i].cid;
+ req->icd_count++;
+ }
+ sge = nonembedded_sgl(wrb);
+ sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd.dma));
+ sge->pa_lo = cpu_to_le32(lower_32_bits(nonemb_cmd.dma));
+ sge->len = cpu_to_le32(nonemb_cmd.size);
+
+ be_mcc_notify(phba, tag);
+ mutex_unlock(&ctrl->mbox_lock);
+
+ rc = beiscsi_mccq_compl_wait(phba, tag, NULL, &nonemb_cmd);
+ if (rc != -EBUSY)
+ dma_free_coherent(&phba->ctrl.pdev->dev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
+ return rc;
+}
diff --git a/drivers/scsi/be2iscsi/be_mgmt.h b/drivers/scsi/be2iscsi/be_mgmt.h
new file mode 100644
index 000000000..d10858828
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be_mgmt.h
@@ -0,0 +1,242 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2017 Broadcom. All Rights Reserved.
+ * The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
+ *
+ * Contact Information:
+ * linux-drivers@broadcom.com
+ */
+
+#ifndef _BEISCSI_MGMT_
+#define _BEISCSI_MGMT_
+
+#include <scsi/scsi_bsg_iscsi.h>
+#include "be_iscsi.h"
+#include "be_main.h"
+
+#define IP_ACTION_ADD 0x01
+#define IP_ACTION_DEL 0x02
+
+#define IP_V6_LEN 16
+#define IP_V4_LEN 4
+
+/* UE Status and Mask register */
+#define PCICFG_UE_STATUS_LOW 0xA0
+#define PCICFG_UE_STATUS_HIGH 0xA4
+#define PCICFG_UE_STATUS_MASK_LOW 0xA8
+#define PCICFG_UE_STATUS_MASK_HI 0xAC
+
+int mgmt_open_connection(struct beiscsi_hba *phba,
+ struct sockaddr *dst_addr,
+ struct beiscsi_endpoint *beiscsi_ep,
+ struct be_dma_mem *nonemb_cmd);
+
+unsigned int mgmt_vendor_specific_fw_cmd(struct be_ctrl_info *ctrl,
+ struct beiscsi_hba *phba,
+ struct bsg_job *job,
+ struct be_dma_mem *nonemb_cmd);
+
+#define BE_INVLDT_CMD_TBL_SZ 128
+struct invldt_cmd_tbl {
+ unsigned short icd;
+ unsigned short cid;
+} __packed;
+
+struct invldt_cmds_params_in {
+ struct be_cmd_req_hdr hdr;
+ unsigned int ref_handle;
+ unsigned int icd_count;
+ struct invldt_cmd_tbl table[BE_INVLDT_CMD_TBL_SZ];
+ unsigned short cleanup_type;
+ unsigned short unused;
+} __packed;
+
+struct invldt_cmds_params_out {
+ struct be_cmd_resp_hdr hdr;
+ unsigned int ref_handle;
+ unsigned int icd_count;
+ unsigned int icd_status[BE_INVLDT_CMD_TBL_SZ];
+} __packed;
+
+union be_invldt_cmds_params {
+ struct invldt_cmds_params_in request;
+ struct invldt_cmds_params_out response;
+} __packed;
+
+struct mgmt_hba_attributes {
+ u8 flashrom_version_string[BEISCSI_VER_STRLEN];
+ u8 manufacturer_name[BEISCSI_VER_STRLEN];
+ u32 supported_modes;
+ u8 seeprom_version_lo;
+ u8 seeprom_version_hi;
+ u8 rsvd0[2];
+ u32 fw_cmd_data_struct_version;
+ u32 ep_fw_data_struct_version;
+ u8 ncsi_version_string[12];
+ u32 default_extended_timeout;
+ u8 controller_model_number[BEISCSI_VER_STRLEN];
+ u8 controller_description[64];
+ u8 controller_serial_number[BEISCSI_VER_STRLEN];
+ u8 ip_version_string[BEISCSI_VER_STRLEN];
+ u8 firmware_version_string[BEISCSI_VER_STRLEN];
+ u8 bios_version_string[BEISCSI_VER_STRLEN];
+ u8 redboot_version_string[BEISCSI_VER_STRLEN];
+ u8 driver_version_string[BEISCSI_VER_STRLEN];
+ u8 fw_on_flash_version_string[BEISCSI_VER_STRLEN];
+ u32 functionalities_supported;
+ u16 max_cdblength;
+ u8 asic_revision;
+ u8 generational_guid[16];
+ u8 hba_port_count;
+ u16 default_link_down_timeout;
+ u8 iscsi_ver_min_max;
+ u8 multifunction_device;
+ u8 cache_valid;
+ u8 hba_status;
+ u8 max_domains_supported;
+ u8 phy_port;
+ u32 firmware_post_status;
+ u32 hba_mtu[8];
+ u8 iscsi_features;
+ u8 asic_generation;
+ u8 future_u8[2];
+ u32 future_u32[3];
+} __packed;
+
+struct mgmt_controller_attributes {
+ struct mgmt_hba_attributes hba_attribs;
+ u16 pci_vendor_id;
+ u16 pci_device_id;
+ u16 pci_sub_vendor_id;
+ u16 pci_sub_system_id;
+ u8 pci_bus_number;
+ u8 pci_device_number;
+ u8 pci_function_number;
+ u8 interface_type;
+ u64 unique_identifier;
+ u8 netfilters;
+ u8 rsvd0[3];
+ u32 future_u32[4];
+} __packed;
+
+struct be_mgmt_controller_attributes {
+ struct be_cmd_req_hdr hdr;
+ struct mgmt_controller_attributes params;
+} __packed;
+
+struct be_mgmt_controller_attributes_resp {
+ struct be_cmd_resp_hdr hdr;
+ struct mgmt_controller_attributes params;
+} __packed;
+
+struct be_bsg_vendor_cmd {
+ struct be_cmd_req_hdr hdr;
+ unsigned short region;
+ unsigned short offset;
+ unsigned short sector;
+} __packed;
+
+/* configuration management */
+
+#define GET_MGMT_CONTROLLER_WS(phba) (phba->pmgmt_ws)
+
+#define ISCSI_GET_PDU_TEMPLATE_ADDRESS(pc, pa) {\
+ pa->lo = phba->init_mem[ISCSI_MEM_GLOBAL_HEADER].mem_array[0].\
+ bus_address.u.a32.address_lo; \
+ pa->hi = phba->init_mem[ISCSI_MEM_GLOBAL_HEADER].mem_array[0].\
+ bus_address.u.a32.address_hi; \
+}
+
+#define BEISCSI_WRITE_FLASH 0
+#define BEISCSI_READ_FLASH 1
+
+struct beiscsi_endpoint {
+ struct beiscsi_hba *phba;
+ struct beiscsi_conn *conn;
+ struct iscsi_endpoint *openiscsi_ep;
+ unsigned short ip_type;
+ char dst6_addr[ISCSI_ADDRESS_BUF_LEN];
+ unsigned long dst_addr;
+ unsigned short ep_cid;
+ unsigned int fw_handle;
+ u16 dst_tcpport;
+ u16 cid_vld;
+};
+
+int beiscsi_mgmt_invalidate_icds(struct beiscsi_hba *phba,
+ struct invldt_cmd_tbl *inv_tbl,
+ unsigned int nents);
+
+int beiscsi_get_initiator_name(struct beiscsi_hba *phba, char *name, bool cfg);
+
+int beiscsi_if_en_dhcp(struct beiscsi_hba *phba, u32 ip_type);
+
+int beiscsi_if_en_static(struct beiscsi_hba *phba, u32 ip_type,
+ u8 *ip, u8 *subnet);
+
+int beiscsi_if_set_gw(struct beiscsi_hba *phba, u32 ip_type, u8 *gw);
+
+int beiscsi_if_get_gw(struct beiscsi_hba *phba, u32 ip_type,
+ struct be_cmd_get_def_gateway_resp *resp);
+
+int mgmt_get_nic_conf(struct beiscsi_hba *phba,
+ struct be_cmd_get_nic_conf_resp *mac);
+
+int beiscsi_if_get_info(struct beiscsi_hba *phba, int ip_type,
+ struct be_cmd_get_if_info_resp **if_info);
+
+unsigned int beiscsi_if_get_handle(struct beiscsi_hba *phba);
+
+int beiscsi_if_set_vlan(struct beiscsi_hba *phba, uint16_t vlan_tag);
+
+unsigned int beiscsi_boot_logout_sess(struct beiscsi_hba *phba);
+
+unsigned int beiscsi_boot_reopen_sess(struct beiscsi_hba *phba);
+
+unsigned int beiscsi_boot_get_sinfo(struct beiscsi_hba *phba);
+
+unsigned int __beiscsi_boot_get_shandle(struct beiscsi_hba *phba, int async);
+
+int beiscsi_boot_get_shandle(struct beiscsi_hba *phba, unsigned int *s_handle);
+
+ssize_t beiscsi_drvr_ver_disp(struct device *dev,
+ struct device_attribute *attr, char *buf);
+
+ssize_t beiscsi_fw_ver_disp(struct device *dev,
+ struct device_attribute *attr, char *buf);
+
+ssize_t beiscsi_active_session_disp(struct device *dev,
+ struct device_attribute *attr, char *buf);
+
+ssize_t beiscsi_adap_family_disp(struct device *dev,
+ struct device_attribute *attr, char *buf);
+
+
+ssize_t beiscsi_free_session_disp(struct device *dev,
+ struct device_attribute *attr, char *buf);
+
+ssize_t beiscsi_phys_port_disp(struct device *dev,
+ struct device_attribute *attr, char *buf);
+
+void beiscsi_offload_cxn_v0(struct beiscsi_offload_params *params,
+ struct wrb_handle *pwrb_handle,
+ struct be_mem_descriptor *mem_descr,
+ struct hwi_wrb_context *pwrb_context);
+
+void beiscsi_offload_cxn_v2(struct beiscsi_offload_params *params,
+ struct wrb_handle *pwrb_handle,
+ struct hwi_wrb_context *pwrb_context);
+
+unsigned int beiscsi_invalidate_cxn(struct beiscsi_hba *phba,
+ struct beiscsi_endpoint *beiscsi_ep);
+
+unsigned int beiscsi_upload_cxn(struct beiscsi_hba *phba,
+ struct beiscsi_endpoint *beiscsi_ep);
+
+int be_cmd_modify_eq_delay(struct beiscsi_hba *phba,
+ struct be_set_eqd *, int num);
+
+int beiscsi_logout_fw_sess(struct beiscsi_hba *phba,
+ uint32_t fw_sess_handle);
+
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 12:32:59 +0000