linux/drivers/scsi/qla2xxx/qla_mid.c

781 lines
19 KiB
C

/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2011 QLogic Corporation
*
* See LICENSE.qla2xxx for copyright and licensing details.
*/
#include "qla_def.h"
#include "qla_gbl.h"
#include <linux/moduleparam.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/list.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsicam.h>
#include <linux/delay.h>
void
qla2x00_vp_stop_timer(scsi_qla_host_t *vha)
{
if (vha->vp_idx && vha->timer_active) {
del_timer_sync(&vha->timer);
vha->timer_active = 0;
}
}
static uint32_t
qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
{
uint32_t vp_id;
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
/* Find an empty slot and assign an vp_id */
mutex_lock(&ha->vport_lock);
vp_id = find_first_zero_bit(ha->vp_idx_map, ha->max_npiv_vports + 1);
if (vp_id > ha->max_npiv_vports) {
DEBUG15(printk ("vp_id %d is bigger than max-supported %d.\n",
vp_id, ha->max_npiv_vports));
mutex_unlock(&ha->vport_lock);
return vp_id;
}
set_bit(vp_id, ha->vp_idx_map);
ha->num_vhosts++;
vha->vp_idx = vp_id;
spin_lock_irqsave(&ha->vport_slock, flags);
list_add_tail(&vha->list, &ha->vp_list);
spin_unlock_irqrestore(&ha->vport_slock, flags);
mutex_unlock(&ha->vport_lock);
return vp_id;
}
void
qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
{
uint16_t vp_id;
struct qla_hw_data *ha = vha->hw;
unsigned long flags = 0;
mutex_lock(&ha->vport_lock);
/*
* Wait for all pending activities to finish before removing vport from
* the list.
* Lock needs to be held for safe removal from the list (it
* ensures no active vp_list traversal while the vport is removed
* from the queue)
*/
spin_lock_irqsave(&ha->vport_slock, flags);
while (atomic_read(&vha->vref_count)) {
spin_unlock_irqrestore(&ha->vport_slock, flags);
msleep(500);
spin_lock_irqsave(&ha->vport_slock, flags);
}
list_del(&vha->list);
spin_unlock_irqrestore(&ha->vport_slock, flags);
vp_id = vha->vp_idx;
ha->num_vhosts--;
clear_bit(vp_id, ha->vp_idx_map);
mutex_unlock(&ha->vport_lock);
}
static scsi_qla_host_t *
qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name)
{
scsi_qla_host_t *vha;
struct scsi_qla_host *tvha;
unsigned long flags;
spin_lock_irqsave(&ha->vport_slock, flags);
/* Locate matching device in database. */
list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) {
if (!memcmp(port_name, vha->port_name, WWN_SIZE)) {
spin_unlock_irqrestore(&ha->vport_slock, flags);
return vha;
}
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
return NULL;
}
/*
* qla2x00_mark_vp_devices_dead
* Updates fcport state when device goes offline.
*
* Input:
* ha = adapter block pointer.
* fcport = port structure pointer.
*
* Return:
* None.
*
* Context:
*/
static void
qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
{
/*
* !!! NOTE !!!
* This function, if called in contexts other than vp create, disable
* or delete, please make sure this is synchronized with the
* delete thread.
*/
fc_port_t *fcport;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
DEBUG15(printk("scsi(%ld): Marking port dead, "
"loop_id=0x%04x :%x\n",
vha->host_no, fcport->loop_id, fcport->vp_idx));
qla2x00_mark_device_lost(vha, fcport, 0, 0);
qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
}
}
int
qla24xx_disable_vp(scsi_qla_host_t *vha)
{
int ret;
ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
atomic_set(&vha->loop_state, LOOP_DOWN);
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
qla2x00_mark_vp_devices_dead(vha);
atomic_set(&vha->vp_state, VP_FAILED);
vha->flags.management_server_logged_in = 0;
if (ret == QLA_SUCCESS) {
fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
} else {
fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
return -1;
}
return 0;
}
int
qla24xx_enable_vp(scsi_qla_host_t *vha)
{
int ret;
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
/* Check if physical ha port is Up */
if (atomic_read(&base_vha->loop_state) == LOOP_DOWN ||
atomic_read(&base_vha->loop_state) == LOOP_DEAD ||
!(ha->current_topology & ISP_CFG_F)) {
vha->vp_err_state = VP_ERR_PORTDWN;
fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
goto enable_failed;
}
/* Initialize the new vport unless it is a persistent port */
mutex_lock(&ha->vport_lock);
ret = qla24xx_modify_vp_config(vha);
mutex_unlock(&ha->vport_lock);
if (ret != QLA_SUCCESS) {
fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
goto enable_failed;
}
DEBUG15(qla_printk(KERN_INFO, ha,
"Virtual port with id: %d - Enabled\n", vha->vp_idx));
return 0;
enable_failed:
DEBUG15(qla_printk(KERN_INFO, ha,
"Virtual port with id: %d - Disabled\n", vha->vp_idx));
return 1;
}
static void
qla24xx_configure_vp(scsi_qla_host_t *vha)
{
struct fc_vport *fc_vport;
int ret;
fc_vport = vha->fc_vport;
DEBUG15(printk("scsi(%ld): %s: change request #3 for this host.\n",
vha->host_no, __func__));
ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
if (ret != QLA_SUCCESS) {
DEBUG15(qla_printk(KERN_ERR, vha->hw, "Failed to enable "
"receiving of RSCN requests: 0x%x\n", ret));
return;
} else {
/* Corresponds to SCR enabled */
clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
}
vha->flags.online = 1;
if (qla24xx_configure_vhba(vha))
return;
atomic_set(&vha->vp_state, VP_ACTIVE);
fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
}
void
qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
{
scsi_qla_host_t *vha;
struct qla_hw_data *ha = rsp->hw;
int i = 0;
unsigned long flags;
spin_lock_irqsave(&ha->vport_slock, flags);
list_for_each_entry(vha, &ha->vp_list, list) {
if (vha->vp_idx) {
atomic_inc(&vha->vref_count);
spin_unlock_irqrestore(&ha->vport_slock, flags);
switch (mb[0]) {
case MBA_LIP_OCCURRED:
case MBA_LOOP_UP:
case MBA_LOOP_DOWN:
case MBA_LIP_RESET:
case MBA_POINT_TO_POINT:
case MBA_CHG_IN_CONNECTION:
case MBA_PORT_UPDATE:
case MBA_RSCN_UPDATE:
DEBUG15(printk("scsi(%ld)%s: Async_event for"
" VP[%d], mb = 0x%x, vha=%p\n",
vha->host_no, __func__, i, *mb, vha));
qla2x00_async_event(vha, rsp, mb);
break;
}
spin_lock_irqsave(&ha->vport_slock, flags);
atomic_dec(&vha->vref_count);
}
i++;
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
}
int
qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
{
/*
* Physical port will do most of the abort and recovery work. We can
* just treat it as a loop down
*/
if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
atomic_set(&vha->loop_state, LOOP_DOWN);
qla2x00_mark_all_devices_lost(vha, 0);
} else {
if (!atomic_read(&vha->loop_down_timer))
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
}
/*
* To exclusively reset vport, we need to log it out first. Note: this
* control_vp can fail if ISP reset is already issued, this is
* expected, as the vp would be already logged out due to ISP reset.
*/
if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
DEBUG15(printk("scsi(%ld): Scheduling enable of Vport %d...\n",
vha->host_no, vha->vp_idx));
return qla24xx_enable_vp(vha);
}
static int
qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
{
qla2x00_do_work(vha);
if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
/* VP acquired. complete port configuration */
qla24xx_configure_vp(vha);
return 0;
}
if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
qla2x00_update_fcports(vha);
clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
}
if ((test_and_clear_bit(RELOGIN_NEEDED, &vha->dpc_flags)) &&
!test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
atomic_read(&vha->loop_state) != LOOP_DOWN) {
DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
vha->host_no));
qla2x00_relogin(vha);
DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
vha->host_no));
}
if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
(!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
clear_bit(RESET_ACTIVE, &vha->dpc_flags);
}
if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
qla2x00_loop_resync(vha);
clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
}
}
return 0;
}
void
qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
{
int ret;
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *vp;
unsigned long flags = 0;
if (vha->vp_idx)
return;
if (list_empty(&ha->vp_list))
return;
clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);
if (!(ha->current_topology & ISP_CFG_F))
return;
spin_lock_irqsave(&ha->vport_slock, flags);
list_for_each_entry(vp, &ha->vp_list, list) {
if (vp->vp_idx) {
atomic_inc(&vp->vref_count);
spin_unlock_irqrestore(&ha->vport_slock, flags);
ret = qla2x00_do_dpc_vp(vp);
spin_lock_irqsave(&ha->vport_slock, flags);
atomic_dec(&vp->vref_count);
}
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
}
int
qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
{
scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
struct qla_hw_data *ha = base_vha->hw;
scsi_qla_host_t *vha;
uint8_t port_name[WWN_SIZE];
if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
return VPCERR_UNSUPPORTED;
/* Check up the F/W and H/W support NPIV */
if (!ha->flags.npiv_supported)
return VPCERR_UNSUPPORTED;
/* Check up whether npiv supported switch presented */
if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
return VPCERR_NO_FABRIC_SUPP;
/* Check up unique WWPN */
u64_to_wwn(fc_vport->port_name, port_name);
if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
return VPCERR_BAD_WWN;
vha = qla24xx_find_vhost_by_name(ha, port_name);
if (vha)
return VPCERR_BAD_WWN;
/* Check up max-npiv-supports */
if (ha->num_vhosts > ha->max_npiv_vports) {
DEBUG15(printk("scsi(%ld): num_vhosts %ud is bigger than "
"max_npv_vports %ud.\n", base_vha->host_no,
ha->num_vhosts, ha->max_npiv_vports));
return VPCERR_UNSUPPORTED;
}
return 0;
}
scsi_qla_host_t *
qla24xx_create_vhost(struct fc_vport *fc_vport)
{
scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
struct qla_hw_data *ha = base_vha->hw;
scsi_qla_host_t *vha;
struct scsi_host_template *sht = &qla2xxx_driver_template;
struct Scsi_Host *host;
vha = qla2x00_create_host(sht, ha);
if (!vha) {
DEBUG(printk("qla2xxx: scsi_host_alloc() failed for vport\n"));
return(NULL);
}
host = vha->host;
fc_vport->dd_data = vha;
/* New host info */
u64_to_wwn(fc_vport->node_name, vha->node_name);
u64_to_wwn(fc_vport->port_name, vha->port_name);
vha->fc_vport = fc_vport;
vha->device_flags = 0;
vha->vp_idx = qla24xx_allocate_vp_id(vha);
if (vha->vp_idx > ha->max_npiv_vports) {
DEBUG15(printk("scsi(%ld): Couldn't allocate vp_id.\n",
vha->host_no));
goto create_vhost_failed;
}
vha->mgmt_svr_loop_id = 10 + vha->vp_idx;
vha->dpc_flags = 0L;
/*
* To fix the issue of processing a parent's RSCN for the vport before
* its SCR is complete.
*/
set_bit(VP_SCR_NEEDED, &vha->vp_flags);
atomic_set(&vha->loop_state, LOOP_DOWN);
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL);
vha->req = base_vha->req;
host->can_queue = base_vha->req->length + 128;
host->this_id = 255;
host->cmd_per_lun = 3;
if ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && ql2xenabledif)
host->max_cmd_len = 32;
else
host->max_cmd_len = MAX_CMDSZ;
host->max_channel = MAX_BUSES - 1;
host->max_lun = ql2xmaxlun;
host->unique_id = host->host_no;
host->max_id = MAX_TARGETS_2200;
host->transportt = qla2xxx_transport_vport_template;
DEBUG15(printk("DEBUG: detect vport hba %ld at address = %p\n",
vha->host_no, vha));
vha->flags.init_done = 1;
mutex_lock(&ha->vport_lock);
set_bit(vha->vp_idx, ha->vp_idx_map);
ha->cur_vport_count++;
mutex_unlock(&ha->vport_lock);
return vha;
create_vhost_failed:
return NULL;
}
static void
qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req)
{
struct qla_hw_data *ha = vha->hw;
uint16_t que_id = req->id;
dma_free_coherent(&ha->pdev->dev, (req->length + 1) *
sizeof(request_t), req->ring, req->dma);
req->ring = NULL;
req->dma = 0;
if (que_id) {
ha->req_q_map[que_id] = NULL;
mutex_lock(&ha->vport_lock);
clear_bit(que_id, ha->req_qid_map);
mutex_unlock(&ha->vport_lock);
}
kfree(req);
req = NULL;
}
static void
qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
{
struct qla_hw_data *ha = vha->hw;
uint16_t que_id = rsp->id;
if (rsp->msix && rsp->msix->have_irq) {
free_irq(rsp->msix->vector, rsp);
rsp->msix->have_irq = 0;
rsp->msix->rsp = NULL;
}
dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) *
sizeof(response_t), rsp->ring, rsp->dma);
rsp->ring = NULL;
rsp->dma = 0;
if (que_id) {
ha->rsp_q_map[que_id] = NULL;
mutex_lock(&ha->vport_lock);
clear_bit(que_id, ha->rsp_qid_map);
mutex_unlock(&ha->vport_lock);
}
kfree(rsp);
rsp = NULL;
}
int
qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
{
int ret = -1;
if (req) {
req->options |= BIT_0;
ret = qla25xx_init_req_que(vha, req);
}
if (ret == QLA_SUCCESS)
qla25xx_free_req_que(vha, req);
return ret;
}
static int
qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
{
int ret = -1;
if (rsp) {
rsp->options |= BIT_0;
ret = qla25xx_init_rsp_que(vha, rsp);
}
if (ret == QLA_SUCCESS)
qla25xx_free_rsp_que(vha, rsp);
return ret;
}
/* Delete all queues for a given vhost */
int
qla25xx_delete_queues(struct scsi_qla_host *vha)
{
int cnt, ret = 0;
struct req_que *req = NULL;
struct rsp_que *rsp = NULL;
struct qla_hw_data *ha = vha->hw;
/* Delete request queues */
for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
req = ha->req_q_map[cnt];
if (req) {
ret = qla25xx_delete_req_que(vha, req);
if (ret != QLA_SUCCESS) {
qla_printk(KERN_WARNING, ha,
"Couldn't delete req que %d\n",
req->id);
return ret;
}
}
}
/* Delete response queues */
for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) {
rsp = ha->rsp_q_map[cnt];
if (rsp) {
ret = qla25xx_delete_rsp_que(vha, rsp);
if (ret != QLA_SUCCESS) {
qla_printk(KERN_WARNING, ha,
"Couldn't delete rsp que %d\n",
rsp->id);
return ret;
}
}
}
return ret;
}
int
qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos)
{
int ret = 0;
struct req_que *req = NULL;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
uint16_t que_id = 0;
device_reg_t __iomem *reg;
uint32_t cnt;
req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
if (req == NULL) {
qla_printk(KERN_WARNING, ha, "could not allocate memory"
"for request que\n");
goto failed;
}
req->length = REQUEST_ENTRY_CNT_24XX;
req->ring = dma_alloc_coherent(&ha->pdev->dev,
(req->length + 1) * sizeof(request_t),
&req->dma, GFP_KERNEL);
if (req->ring == NULL) {
qla_printk(KERN_WARNING, ha,
"Memory Allocation failed - request_ring\n");
goto que_failed;
}
mutex_lock(&ha->vport_lock);
que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues);
if (que_id >= ha->max_req_queues) {
mutex_unlock(&ha->vport_lock);
qla_printk(KERN_INFO, ha, "No resources to create "
"additional request queue\n");
goto que_failed;
}
set_bit(que_id, ha->req_qid_map);
ha->req_q_map[que_id] = req;
req->rid = rid;
req->vp_idx = vp_idx;
req->qos = qos;
if (rsp_que < 0)
req->rsp = NULL;
else
req->rsp = ha->rsp_q_map[rsp_que];
/* Use alternate PCI bus number */
if (MSB(req->rid))
options |= BIT_4;
/* Use alternate PCI devfn */
if (LSB(req->rid))
options |= BIT_5;
req->options = options;
for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
req->outstanding_cmds[cnt] = NULL;
req->current_outstanding_cmd = 1;
req->ring_ptr = req->ring;
req->ring_index = 0;
req->cnt = req->length;
req->id = que_id;
reg = ISP_QUE_REG(ha, que_id);
req->max_q_depth = ha->req_q_map[0]->max_q_depth;
mutex_unlock(&ha->vport_lock);
ret = qla25xx_init_req_que(base_vha, req);
if (ret != QLA_SUCCESS) {
qla_printk(KERN_WARNING, ha, "%s failed\n", __func__);
mutex_lock(&ha->vport_lock);
clear_bit(que_id, ha->req_qid_map);
mutex_unlock(&ha->vport_lock);
goto que_failed;
}
return req->id;
que_failed:
qla25xx_free_req_que(base_vha, req);
failed:
return 0;
}
static void qla_do_work(struct work_struct *work)
{
unsigned long flags;
struct rsp_que *rsp = container_of(work, struct rsp_que, q_work);
struct scsi_qla_host *vha;
struct qla_hw_data *ha = rsp->hw;
spin_lock_irqsave(&rsp->hw->hardware_lock, flags);
vha = pci_get_drvdata(ha->pdev);
qla24xx_process_response_queue(vha, rsp);
spin_unlock_irqrestore(&rsp->hw->hardware_lock, flags);
}
/* create response queue */
int
qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
uint8_t vp_idx, uint16_t rid, int req)
{
int ret = 0;
struct rsp_que *rsp = NULL;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
uint16_t que_id = 0;
device_reg_t __iomem *reg;
rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
if (rsp == NULL) {
qla_printk(KERN_WARNING, ha, "could not allocate memory for"
" response que\n");
goto failed;
}
rsp->length = RESPONSE_ENTRY_CNT_MQ;
rsp->ring = dma_alloc_coherent(&ha->pdev->dev,
(rsp->length + 1) * sizeof(response_t),
&rsp->dma, GFP_KERNEL);
if (rsp->ring == NULL) {
qla_printk(KERN_WARNING, ha,
"Memory Allocation failed - response_ring\n");
goto que_failed;
}
mutex_lock(&ha->vport_lock);
que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues);
if (que_id >= ha->max_rsp_queues) {
mutex_unlock(&ha->vport_lock);
qla_printk(KERN_INFO, ha, "No resources to create "
"additional response queue\n");
goto que_failed;
}
set_bit(que_id, ha->rsp_qid_map);
if (ha->flags.msix_enabled)
rsp->msix = &ha->msix_entries[que_id + 1];
else
qla_printk(KERN_WARNING, ha, "msix not enabled\n");
ha->rsp_q_map[que_id] = rsp;
rsp->rid = rid;
rsp->vp_idx = vp_idx;
rsp->hw = ha;
/* Use alternate PCI bus number */
if (MSB(rsp->rid))
options |= BIT_4;
/* Use alternate PCI devfn */
if (LSB(rsp->rid))
options |= BIT_5;
/* Enable MSIX handshake mode on for uncapable adapters */
if (!IS_MSIX_NACK_CAPABLE(ha))
options |= BIT_6;
rsp->options = options;
rsp->id = que_id;
reg = ISP_QUE_REG(ha, que_id);
rsp->rsp_q_in = &reg->isp25mq.rsp_q_in;
rsp->rsp_q_out = &reg->isp25mq.rsp_q_out;
mutex_unlock(&ha->vport_lock);
ret = qla25xx_request_irq(rsp);
if (ret)
goto que_failed;
ret = qla25xx_init_rsp_que(base_vha, rsp);
if (ret != QLA_SUCCESS) {
qla_printk(KERN_WARNING, ha, "%s failed\n", __func__);
mutex_lock(&ha->vport_lock);
clear_bit(que_id, ha->rsp_qid_map);
mutex_unlock(&ha->vport_lock);
goto que_failed;
}
if (req >= 0)
rsp->req = ha->req_q_map[req];
else
rsp->req = NULL;
qla2x00_init_response_q_entries(rsp);
if (rsp->hw->wq)
INIT_WORK(&rsp->q_work, qla_do_work);
return rsp->id;
que_failed:
qla25xx_free_rsp_que(base_vha, rsp);
failed:
return 0;
}