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linux_dsm_epyc7002/drivers/scsi/be2iscsi/be_cmds.c
Jayamohan Kallickal 9343be7490 [SCSI] be2iscsi: Fix the session cleanup when reboot/shutdown happens 
In iSCSI Boot scenario, when machine is reboot/shutdown phase
the active sessions are not closed. Driver queue cleanup is
done as part of unload and device is disabled.

Sessions are still active, iSCSI commands are issued from
session which comes to driver, as driver cleanup and device
disabled there is kernel stack dump with errors.

Fix is invoking iscsi_session_failure with ISCSI_ERR_INVALID_HOST
on all the active sessions when shutdown routine is called.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-15 10:19:11 -07:00

1410 lines
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/**
* Copyright (C) 2005 - 2013 Emulex
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation. The full GNU General
* Public License is included in this distribution in the file called COPYING.
*
* Contact Information:
* linux-drivers@emulex.com
*
* Emulex
* 3333 Susan Street
* Costa Mesa, CA 92626
*/
#include <scsi/iscsi_proto.h>
#include "be_main.h"
#include "be.h"
#include "be_mgmt.h"
int beiscsi_pci_soft_reset(struct beiscsi_hba *phba)
{
u32 sreset;
u8 *pci_reset_offset = 0;
u8 *pci_online0_offset = 0;
u8 *pci_online1_offset = 0;
u32 pconline0 = 0;
u32 pconline1 = 0;
u32 i;
pci_reset_offset = (u8 *)phba->pci_va + BE2_SOFT_RESET;
pci_online0_offset = (u8 *)phba->pci_va + BE2_PCI_ONLINE0;
pci_online1_offset = (u8 *)phba->pci_va + BE2_PCI_ONLINE1;
sreset = readl((void *)pci_reset_offset);
sreset |= BE2_SET_RESET;
writel(sreset, (void *)pci_reset_offset);
i = 0;
while (sreset & BE2_SET_RESET) {
if (i > 64)
break;
msleep(100);
sreset = readl((void *)pci_reset_offset);
i++;
}
if (sreset & BE2_SET_RESET) {
printk(KERN_ERR DRV_NAME
" Soft Reset did not deassert\n");
return -EIO;
}
pconline1 = BE2_MPU_IRAM_ONLINE;
writel(pconline0, (void *)pci_online0_offset);
writel(pconline1, (void *)pci_online1_offset);
sreset |= BE2_SET_RESET;
writel(sreset, (void *)pci_reset_offset);
i = 0;
while (sreset & BE2_SET_RESET) {
if (i > 64)
break;
msleep(1);
sreset = readl((void *)pci_reset_offset);
i++;
}
if (sreset & BE2_SET_RESET) {
printk(KERN_ERR DRV_NAME
" MPU Online Soft Reset did not deassert\n");
return -EIO;
}
return 0;
}
int be_chk_reset_complete(struct beiscsi_hba *phba)
{
unsigned int num_loop;
u8 *mpu_sem = 0;
u32 status;
num_loop = 1000;
mpu_sem = (u8 *)phba->csr_va + MPU_EP_SEMAPHORE;
msleep(5000);
while (num_loop) {
status = readl((void *)mpu_sem);
if ((status & 0x80000000) || (status & 0x0000FFFF) == 0xC000)
break;
msleep(60);
num_loop--;
}
if ((status & 0x80000000) || (!num_loop)) {
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
"BC_%d : Failed in be_chk_reset_complete"
"status = 0x%x\n", status);
return -EIO;
}
return 0;
}
void be_mcc_notify(struct beiscsi_hba *phba)
{
struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
u32 val = 0;
val |= mccq->id & DB_MCCQ_RING_ID_MASK;
val |= 1 << DB_MCCQ_NUM_POSTED_SHIFT;
iowrite32(val, phba->db_va + DB_MCCQ_OFFSET);
}
unsigned int alloc_mcc_tag(struct beiscsi_hba *phba)
{
unsigned int tag = 0;
if (phba->ctrl.mcc_tag_available) {
tag = phba->ctrl.mcc_tag[phba->ctrl.mcc_alloc_index];
phba->ctrl.mcc_tag[phba->ctrl.mcc_alloc_index] = 0;
phba->ctrl.mcc_numtag[tag] = 0;
}
if (tag) {
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++;
}
return tag;
}
/*
* beiscsi_mccq_compl()- Wait for completion of MBX
* @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(struct beiscsi_hba *phba,
uint32_t tag, struct be_mcc_wrb **wrb,
struct be_dma_mem *mbx_cmd_mem)
{
int rc = 0;
uint32_t mcc_tag_response;
uint16_t status = 0, addl_status = 0, wrb_num = 0;
struct be_mcc_wrb *temp_wrb;
struct be_cmd_req_hdr *mbx_hdr;
struct be_cmd_resp_hdr *mbx_resp_hdr;
struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
if (beiscsi_error(phba)) {
free_mcc_tag(&phba->ctrl, tag);
return -EPERM;
}
/* Set MBX Tag state to Active */
spin_lock(&phba->ctrl.mbox_lock);
phba->ctrl.ptag_state[tag].tag_state = MCC_TAG_STATE_RUNNING;
spin_unlock(&phba->ctrl.mbox_lock);
/* wait for the mccq completion */
rc = wait_event_interruptible_timeout(
phba->ctrl.mcc_wait[tag],
phba->ctrl.mcc_numtag[tag],
msecs_to_jiffies(
BEISCSI_HOST_MBX_TIMEOUT));
if (rc <= 0) {
struct be_dma_mem *tag_mem;
/* Set MBX Tag state to timeout */
spin_lock(&phba->ctrl.mbox_lock);
phba->ctrl.ptag_state[tag].tag_state = MCC_TAG_STATE_TIMEOUT;
spin_unlock(&phba->ctrl.mbox_lock);
/* Store resource addr to 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;
beiscsi_log(phba, KERN_ERR,
BEISCSI_LOG_INIT | BEISCSI_LOG_EH |
BEISCSI_LOG_CONFIG,
"BC_%d : MBX Cmd Completion timed out\n");
return -EBUSY;
} else {
rc = 0;
/* Set MBX Tag state to completed */
spin_lock(&phba->ctrl.mbox_lock);
phba->ctrl.ptag_state[tag].tag_state = MCC_TAG_STATE_COMPLETED;
spin_unlock(&phba->ctrl.mbox_lock);
}
mcc_tag_response = phba->ctrl.mcc_numtag[tag];
status = (mcc_tag_response & CQE_STATUS_MASK);
addl_status = ((mcc_tag_response & 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_response & 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);
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 : Insufficent Buffer Error "
"Resp_Len : %d Actual_Resp_Len : %d\n",
mbx_resp_hdr->response_length,
mbx_resp_hdr->actual_resp_len);
rc = -EAGAIN;
goto release_mcc_tag;
}
rc = -EIO;
}
release_mcc_tag:
/* Release the MCC entry */
free_mcc_tag(&phba->ctrl, tag);
return rc;
}
void free_mcc_tag(struct be_ctrl_info *ctrl, unsigned int tag)
{
spin_lock(&ctrl->mbox_lock);
tag = tag & 0x000000FF;
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++;
spin_unlock(&ctrl->mbox_lock);
}
bool is_link_state_evt(u32 trailer)
{
return (((trailer >> ASYNC_TRAILER_EVENT_CODE_SHIFT) &
ASYNC_TRAILER_EVENT_CODE_MASK) ==
ASYNC_EVENT_CODE_LINK_STATE);
}
static inline bool be_mcc_compl_is_new(struct be_mcc_compl *compl)
{
if (compl->flags != 0) {
compl->flags = le32_to_cpu(compl->flags);
WARN_ON((compl->flags & CQE_FLAGS_VALID_MASK) == 0);
return true;
} else
return false;
}
static inline void be_mcc_compl_use(struct be_mcc_compl *compl)
{
compl->flags = 0;
}
/*
* be_mcc_compl_process()- Check the MBX comapletion 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 be_mcc_compl_process(struct be_ctrl_info *ctrl,
struct be_mcc_compl *compl)
{
u16 compl_status, extd_status;
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);
struct be_cmd_resp_hdr *resp_hdr;
be_dws_le_to_cpu(compl, 4);
compl_status = (compl->status >> CQE_STATUS_COMPL_SHIFT) &
CQE_STATUS_COMPL_MASK;
if (compl_status != MCC_STATUS_SUCCESS) {
extd_status = (compl->status >> CQE_STATUS_EXTD_SHIFT) &
CQE_STATUS_EXTD_MASK;
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);
if (compl_status == MCC_STATUS_INSUFFICIENT_BUFFER) {
resp_hdr = (struct be_cmd_resp_hdr *) hdr;
if (resp_hdr->response_length)
return 0;
}
return -EBUSY;
}
return 0;
}
int be_mcc_compl_process_isr(struct be_ctrl_info *ctrl,
struct be_mcc_compl *compl)
{
struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
u16 compl_status, extd_status;
unsigned short tag;
be_dws_le_to_cpu(compl, 4);
compl_status = (compl->status >> CQE_STATUS_COMPL_SHIFT) &
CQE_STATUS_COMPL_MASK;
/* The ctrl.mcc_numtag[tag] is filled with
* [31] = valid, [30:24] = Rsvd, [23:16] = wrb, [15:8] = extd_status,
* [7:0] = compl_status
*/
tag = (compl->tag0 & 0x000000FF);
extd_status = (compl->status >> CQE_STATUS_EXTD_SHIFT) &
CQE_STATUS_EXTD_MASK;
ctrl->mcc_numtag[tag] = 0x80000000;
ctrl->mcc_numtag[tag] |= (compl->tag0 & 0x00FF0000);
ctrl->mcc_numtag[tag] |= (extd_status & 0x000000FF) << 8;
ctrl->mcc_numtag[tag] |= (compl_status & 0x000000FF);
if (ctrl->ptag_state[tag].tag_state == MCC_TAG_STATE_RUNNING) {
wake_up_interruptible(&ctrl->mcc_wait[tag]);
} else if (ctrl->ptag_state[tag].tag_state == MCC_TAG_STATE_TIMEOUT) {
struct be_dma_mem *tag_mem;
tag_mem = &ctrl->ptag_state[tag].tag_mem_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 if memory needs to be freed */
if (tag_mem->size)
pci_free_consistent(ctrl->pdev, tag_mem->size,
tag_mem->va, tag_mem->dma);
/* Change tag state */
spin_lock(&phba->ctrl.mbox_lock);
ctrl->ptag_state[tag].tag_state = MCC_TAG_STATE_COMPLETED;
spin_unlock(&phba->ctrl.mbox_lock);
/* Free MCC Tag */
free_mcc_tag(ctrl, tag);
}
return 0;
}
static struct be_mcc_compl *be_mcc_compl_get(struct beiscsi_hba *phba)
{
struct be_queue_info *mcc_cq = &phba->ctrl.mcc_obj.cq;
struct be_mcc_compl *compl = queue_tail_node(mcc_cq);
if (be_mcc_compl_is_new(compl)) {
queue_tail_inc(mcc_cq);
return compl;
}
return NULL;
}
/**
* be2iscsi_fail_session(): Closing session with appropriate error
* @cls_session: ptr to session
*
* Depending on adapter state appropriate error flag is passed.
**/
void be2iscsi_fail_session(struct iscsi_cls_session *cls_session)
{
struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
struct beiscsi_hba *phba = iscsi_host_priv(shost);
uint32_t iscsi_err_flag;
if (phba->state & BE_ADAPTER_STATE_SHUTDOWN)
iscsi_err_flag = ISCSI_ERR_INVALID_HOST;
else
iscsi_err_flag = ISCSI_ERR_CONN_FAILED;
iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED);
}
void beiscsi_async_link_state_process(struct beiscsi_hba *phba,
struct be_async_event_link_state *evt)
{
if ((evt->port_link_status == ASYNC_EVENT_LINK_DOWN) ||
((evt->port_link_status & ASYNC_EVENT_LOGICAL) &&
(evt->port_fault != BEISCSI_PHY_LINK_FAULT_NONE))) {
phba->state = BE_ADAPTER_LINK_DOWN;
beiscsi_log(phba, KERN_ERR,
BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT,
"BC_%d : Link Down on Port %d\n",
evt->physical_port);
iscsi_host_for_each_session(phba->shost,
be2iscsi_fail_session);
} else if ((evt->port_link_status & ASYNC_EVENT_LINK_UP) ||
((evt->port_link_status & ASYNC_EVENT_LOGICAL) &&
(evt->port_fault == BEISCSI_PHY_LINK_FAULT_NONE))) {
phba->state = BE_ADAPTER_LINK_UP;
beiscsi_log(phba, KERN_ERR,
BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT,
"BC_%d : Link UP on Port %d\n",
evt->physical_port);
}
}
int beiscsi_process_mcc(struct beiscsi_hba *phba)
{
struct be_mcc_compl *compl;
int num = 0, status = 0;
struct be_ctrl_info *ctrl = &phba->ctrl;
spin_lock_bh(&phba->ctrl.mcc_cq_lock);
while ((compl = be_mcc_compl_get(phba))) {
if (compl->flags & CQE_FLAGS_ASYNC_MASK) {
/* Interpret flags as an async trailer */
if (is_link_state_evt(compl->flags))
/* Interpret compl as a async link evt */
beiscsi_async_link_state_process(phba,
(struct be_async_event_link_state *) compl);
else
beiscsi_log(phba, KERN_ERR,
BEISCSI_LOG_CONFIG |
BEISCSI_LOG_MBOX,
"BC_%d : Unsupported Async Event, flags"
" = 0x%08x\n", compl->flags);
} else if (compl->flags & CQE_FLAGS_COMPLETED_MASK) {
status = be_mcc_compl_process(ctrl, compl);
atomic_dec(&phba->ctrl.mcc_obj.q.used);
}
be_mcc_compl_use(compl);
num++;
}
if (num)
hwi_ring_cq_db(phba, phba->ctrl.mcc_obj.cq.id, num, 1, 0);
spin_unlock_bh(&phba->ctrl.mcc_cq_lock);
return status;
}
/*
* be_mcc_wait_compl()- Wait for MBX completion
* @phba: driver private structure
*
* Wait till no more pending mcc requests are present
*
* return
* Success: 0
* Failure: Non-Zero
*
**/
static int be_mcc_wait_compl(struct beiscsi_hba *phba)
{
int i, status;
for (i = 0; i < mcc_timeout; i++) {
if (beiscsi_error(phba))
return -EIO;
status = beiscsi_process_mcc(phba);
if (status)
return status;
if (atomic_read(&phba->ctrl.mcc_obj.q.used) == 0)
break;
udelay(100);
}
if (i == mcc_timeout) {
beiscsi_log(phba, KERN_ERR,
BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
"BC_%d : FW Timed Out\n");
phba->fw_timeout = true;
beiscsi_ue_detect(phba);
return -EBUSY;
}
return 0;
}
/*
* be_mcc_notify_wait()- Notify and wait for Compl
* @phba: driver private structure
*
* Notify MCC requests and wait for completion
*
* return
* Success: 0
* Failure: Non-Zero
**/
int be_mcc_notify_wait(struct beiscsi_hba *phba)
{
be_mcc_notify(phba);
return be_mcc_wait_compl(phba);
}
/*
* be_mbox_db_ready_wait()- 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_wait(struct be_ctrl_info *ctrl)
{
#define BEISCSI_MBX_RDY_BIT_TIMEOUT 4000 /* 4sec */
void __iomem *db = ctrl->db + MPU_MAILBOX_DB_OFFSET;
struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
unsigned long timeout;
bool read_flag = false;
int ret = 0, i;
u32 ready;
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(rdybit_check_q);
if (beiscsi_error(phba))
return -EIO;
timeout = jiffies + (HZ * 110);
do {
for (i = 0; i < BEISCSI_MBX_RDY_BIT_TIMEOUT; i++) {
ready = ioread32(db) & MPU_MAILBOX_DB_RDY_MASK;
if (ready) {
read_flag = true;
break;
}
mdelay(1);
}
if (!read_flag) {
wait_event_timeout(rdybit_check_q,
(read_flag != true),
HZ * 5);
}
} while ((time_before(jiffies, timeout)) && !read_flag);
if (!read_flag) {
beiscsi_log(phba, KERN_ERR,
BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
"BC_%d : FW Timed Out\n");
phba->fw_timeout = true;
beiscsi_ue_detect(phba);
ret = -EBUSY;
}
return ret;
}
/*
* 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
**/
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;
struct be_mcc_compl *compl = &mbox->compl;
struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
status = be_mbox_db_ready_wait(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_wait(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_wait(ctrl);
if (status)
return status;
if (be_mcc_compl_is_new(compl)) {
status = be_mcc_compl_process(ctrl, &mbox->compl);
be_mcc_compl_use(compl);
if (status) {
beiscsi_log(phba, KERN_ERR,
BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
"BC_%d : After be_mcc_compl_process\n");
return status;
}
} else {
beiscsi_log(phba, KERN_ERR,
BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
"BC_%d : Invalid Mailbox Completion\n");
return -EBUSY;
}
return 0;
}
/*
* Insert the mailbox address into the doorbell in two steps
* Polls on the mbox doorbell till a command completion (or a timeout) occurs
*/
static int be_mbox_notify_wait(struct beiscsi_hba *phba)
{
int status;
u32 val = 0;
void __iomem *db = phba->ctrl.db + MPU_MAILBOX_DB_OFFSET;
struct be_dma_mem *mbox_mem = &phba->ctrl.mbox_mem;
struct be_mcc_mailbox *mbox = mbox_mem->va;
struct be_mcc_compl *compl = &mbox->compl;
struct be_ctrl_info *ctrl = &phba->ctrl;
status = be_mbox_db_ready_wait(ctrl);
if (status)
return status;
val |= MPU_MAILBOX_DB_HI_MASK;
/* at bits 2 - 31 place mbox dma addr msb bits 34 - 63 */
val |= (upper_32_bits(mbox_mem->dma) >> 2) << 2;
iowrite32(val, db);
/* wait for ready to be set */
status = be_mbox_db_ready_wait(ctrl);
if (status != 0)
return status;
val = 0;
/* at bits 2 - 31 place mbox dma addr lsb bits 4 - 33 */
val |= (u32)(mbox_mem->dma >> 4) << 2;
iowrite32(val, db);
status = be_mbox_db_ready_wait(ctrl);
if (status != 0)
return status;
/* A cq entry has been made now */
if (be_mcc_compl_is_new(compl)) {
status = be_mcc_compl_process(ctrl, &mbox->compl);
be_mcc_compl_use(compl);
if (status)
return status;
} else {
beiscsi_log(phba, KERN_ERR,
BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
"BC_%d : invalid mailbox completion\n");
return -EBUSY;
}
return 0;
}
void be_wrb_hdr_prepare(struct be_mcc_wrb *wrb, int payload_len,
bool embedded, u8 sge_cnt)
{
if (embedded)
wrb->embedded |= MCC_WRB_EMBEDDED_MASK;
else
wrb->embedded |= (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, int 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;
}
struct be_mcc_wrb *wrb_from_mccq(struct beiscsi_hba *phba)
{
struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
struct be_mcc_wrb *wrb;
WARN_ON(atomic_read(&mccq->used) >= mccq->len);
wrb = queue_head_node(mccq);
memset(wrb, 0, sizeof(*wrb));
wrb->tag0 = (mccq->head & 0x000000FF) << 16;
queue_head_inc(mccq);
atomic_inc(&mccq->used);
return 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;
spin_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;
}
spin_unlock(&ctrl->mbox_lock);
return status;
}
/**
* be_cmd_fw_initialize()- Initialize FW
* @ctrl: Pointer to function control structure
*
* Send FW initialize pattern for the function.
*
* return
* Success: 0
* Failure: Non-Zero value
**/
int be_cmd_fw_initialize(struct be_ctrl_info *ctrl)
{
struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
int status;
u8 *endian_check;
spin_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
endian_check = (u8 *) wrb;
*endian_check++ = 0xFF;
*endian_check++ = 0x12;
*endian_check++ = 0x34;
*endian_check++ = 0xFF;
*endian_check++ = 0xFF;
*endian_check++ = 0x56;
*endian_check++ = 0x78;
*endian_check++ = 0xFF;
be_dws_cpu_to_le(wrb, sizeof(*wrb));
status = be_mbox_notify(ctrl);
if (status)
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
"BC_%d : be_cmd_fw_initialize Failed\n");
spin_unlock(&ctrl->mbox_lock);
return status;
}
/**
* be_cmd_fw_uninit()- Uinitialize FW
* @ctrl: Pointer to function control structure
*
* Send FW uninitialize pattern for the function
*
* return
* Success: 0
* Failure: Non-Zero value
**/
int be_cmd_fw_uninit(struct be_ctrl_info *ctrl)
{
struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
int status;
u8 *endian_check;
spin_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
endian_check = (u8 *) wrb;
*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_ERR, BEISCSI_LOG_INIT,
"BC_%d : be_cmd_fw_uninit Failed\n");
spin_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;
spin_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);
spin_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 *req;
struct be_dma_mem *q_mem = &mccq->dma_mem;
struct be_ctrl_info *ctrl;
void *ctxt;
int status;
spin_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, sizeof(*req));
req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size);
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_wait(phba);
if (!status) {
struct be_cmd_resp_mcc_create *resp = embedded_payload(wrb);
mccq->id = le16_to_cpu(resp->id);
mccq->created = true;
}
spin_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);
spin_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:
spin_unlock(&ctrl->mbox_lock);
BUG();
return -ENXIO;
}
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);
spin_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
* @lenght: 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;
spin_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;
}
}
spin_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;
spin_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;
}
}
spin_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;
spin_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);
spin_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;
spin_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);
spin_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;
spin_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:
spin_unlock(&ctrl->mbox_lock);
if (status != 0)
beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL);
return status;
}
int beiscsi_cmd_reset_function(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 = embedded_payload(wrb);
int status;
spin_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_wait(phba);
spin_unlock(&ctrl->mbox_lock);
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 = 0;
struct be_mcc_wrb *wrb;
struct be_cmd_set_vlan_req *req;
struct be_ctrl_info *ctrl = &phba->ctrl;
spin_lock(&ctrl->mbox_lock);
tag = alloc_mcc_tag(phba);
if (!tag) {
spin_unlock(&ctrl->mbox_lock);
return tag;
}
wrb = wrb_from_mccq(phba);
req = embedded_payload(wrb);
wrb->tag0 |= tag;
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);
spin_unlock(&ctrl->mbox_lock);
return tag;
}
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