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googlers / maze / linux / 64a8920fab962fb581bbe67856cb4740fc37d743 / . / drivers / scsi / qla2xxx / qla_os.c
blob: 48c37e38ed0172b137b99a0effaabc9049375a9b [file] [log] [blame]
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2008 QLogic Corporation
*
* See LICENSE.qla2xxx for copyright and licensing details.
*/
#include "qla_def.h"
#include <linux/moduleparam.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/mutex.h>
#include <linux/kobject.h>
#include <linux/slab.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsicam.h>
#include <scsi/scsi_transport.h>
#include <scsi/scsi_transport_fc.h>
/*
* Driver version
*/
char qla2x00_version_str[40];
/*
* SRB allocation cache
*/
static struct kmem_cache *srb_cachep;
int ql2xlogintimeout = 20;
module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
MODULE_PARM_DESC(ql2xlogintimeout,
"Login timeout value in seconds.");
int qlport_down_retry;
module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
MODULE_PARM_DESC(qlport_down_retry,
"Maximum number of command retries to a port that returns "
"a PORT-DOWN status.");
int ql2xplogiabsentdevice;
module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xplogiabsentdevice,
"Option to enable PLOGI to devices that are not present after "
"a Fabric scan. This is needed for several broken switches. "
"Default is 0 - no PLOGI. 1 - perfom PLOGI.");
int ql2xloginretrycount = 0;
module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
MODULE_PARM_DESC(ql2xloginretrycount,
"Specify an alternate value for the NVRAM login retry count.");
int ql2xallocfwdump = 1;
module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
MODULE_PARM_DESC(ql2xallocfwdump,
"Option to enable allocation of memory for a firmware dump "
"during HBA initialization. Memory allocation requirements "
"vary by ISP type. Default is 1 - allocate memory.");
int ql2xextended_error_logging;
module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xextended_error_logging,
"Option to enable extended error logging, "
"Default is 0 - no logging. 1 - log errors.");
static void qla2x00_free_device(scsi_qla_host_t *);
int ql2xfdmienable=1;
module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
MODULE_PARM_DESC(ql2xfdmienable,
"Enables FDMI registratons "
"Default is 0 - no FDMI. 1 - perfom FDMI.");
#define MAX_Q_DEPTH 32
static int ql2xmaxqdepth = MAX_Q_DEPTH;
module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xmaxqdepth,
"Maximum queue depth to report for target devices.");
int ql2xiidmaenable=1;
module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
MODULE_PARM_DESC(ql2xiidmaenable,
"Enables iIDMA settings "
"Default is 1 - perform iIDMA. 0 - no iIDMA.");
int ql2xmaxqueues = 1;
module_param(ql2xmaxqueues, int, S_IRUGO|S_IRUSR);
MODULE_PARM_DESC(ql2xmaxqueues,
"Enables MQ settings "
"Default is 1 for single queue. Set it to number \
of queues in MQ mode.");
int ql2xmultique_tag;
module_param(ql2xmultique_tag, int, S_IRUGO|S_IRUSR);
MODULE_PARM_DESC(ql2xmultique_tag,
"Enables CPU affinity settings for the driver "
"Default is 0 for no affinity of request and response IO. "
"Set it to 1 to turn on the cpu affinity.");
int ql2xfwloadbin;
module_param(ql2xfwloadbin, int, S_IRUGO|S_IRUSR);
MODULE_PARM_DESC(ql2xfwloadbin,
"Option to specify location from which to load ISP firmware:\n"
" 2 -- load firmware via the request_firmware() (hotplug)\n"
" interface.\n"
" 1 -- load firmware from flash.\n"
" 0 -- use default semantics.\n");
int ql2xetsenable;
module_param(ql2xetsenable, int, S_IRUGO|S_IRUSR);
MODULE_PARM_DESC(ql2xetsenable,
"Enables firmware ETS burst."
"Default is 0 - skip ETS enablement.");
/*
* SCSI host template entry points
*/
static int qla2xxx_slave_configure(struct scsi_device * device);
static int qla2xxx_slave_alloc(struct scsi_device *);
static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
static void qla2xxx_scan_start(struct Scsi_Host *);
static void qla2xxx_slave_destroy(struct scsi_device *);
static int qla2xxx_queuecommand(struct scsi_cmnd *cmd,
void (*fn)(struct scsi_cmnd *));
static int qla2xxx_eh_abort(struct scsi_cmnd *);
static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
static int qla2x00_change_queue_type(struct scsi_device *, int);
struct scsi_host_template qla2xxx_driver_template = {
.module = THIS_MODULE,
.name = QLA2XXX_DRIVER_NAME,
.queuecommand = qla2xxx_queuecommand,
.eh_abort_handler = qla2xxx_eh_abort,
.eh_device_reset_handler = qla2xxx_eh_device_reset,
.eh_target_reset_handler = qla2xxx_eh_target_reset,
.eh_bus_reset_handler = qla2xxx_eh_bus_reset,
.eh_host_reset_handler = qla2xxx_eh_host_reset,
.slave_configure = qla2xxx_slave_configure,
.slave_alloc = qla2xxx_slave_alloc,
.slave_destroy = qla2xxx_slave_destroy,
.scan_finished = qla2xxx_scan_finished,
.scan_start = qla2xxx_scan_start,
.change_queue_depth = qla2x00_change_queue_depth,
.change_queue_type = qla2x00_change_queue_type,
.this_id = -1,
.cmd_per_lun = 3,
.use_clustering = ENABLE_CLUSTERING,
.sg_tablesize = SG_ALL,
.max_sectors = 0xFFFF,
.shost_attrs = qla2x00_host_attrs,
};
static struct scsi_transport_template *qla2xxx_transport_template = NULL;
struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
/* TODO Convert to inlines
*
* Timer routines
*/
__inline__ void
qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
{
init_timer(&vha->timer);
vha->timer.expires = jiffies + interval * HZ;
vha->timer.data = (unsigned long)vha;
vha->timer.function = (void (*)(unsigned long))func;
add_timer(&vha->timer);
vha->timer_active = 1;
}
static inline void
qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
{
mod_timer(&vha->timer, jiffies + interval * HZ);
}
static __inline__ void
qla2x00_stop_timer(scsi_qla_host_t *vha)
{
del_timer_sync(&vha->timer);
vha->timer_active = 0;
}
static int qla2x00_do_dpc(void *data);
static void qla2x00_rst_aen(scsi_qla_host_t *);
static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
struct req_que **, struct rsp_que **);
static void qla2x00_mem_free(struct qla_hw_data *);
static void qla2x00_sp_free_dma(srb_t *);
/* -------------------------------------------------------------------------- */
static int qla2x00_alloc_queues(struct qla_hw_data *ha)
{
ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
GFP_KERNEL);
if (!ha->req_q_map) {
qla_printk(KERN_WARNING, ha,
"Unable to allocate memory for request queue ptrs\n");
goto fail_req_map;
}
ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
GFP_KERNEL);
if (!ha->rsp_q_map) {
qla_printk(KERN_WARNING, ha,
"Unable to allocate memory for response queue ptrs\n");
goto fail_rsp_map;
}
set_bit(0, ha->rsp_qid_map);
set_bit(0, ha->req_qid_map);
return 1;
fail_rsp_map:
kfree(ha->req_q_map);
ha->req_q_map = NULL;
fail_req_map:
return -ENOMEM;
}
static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
{
if (req && req->ring)
dma_free_coherent(&ha->pdev->dev,
(req->length + 1) * sizeof(request_t),
req->ring, req->dma);
kfree(req);
req = NULL;
}
static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
{
if (rsp && rsp->ring)
dma_free_coherent(&ha->pdev->dev,
(rsp->length + 1) * sizeof(response_t),
rsp->ring, rsp->dma);
kfree(rsp);
rsp = NULL;
}
static void qla2x00_free_queues(struct qla_hw_data *ha)
{
struct req_que *req;
struct rsp_que *rsp;
int cnt;
for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
req = ha->req_q_map[cnt];
qla2x00_free_req_que(ha, req);
}
kfree(ha->req_q_map);
ha->req_q_map = NULL;
for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
rsp = ha->rsp_q_map[cnt];
qla2x00_free_rsp_que(ha, rsp);
}
kfree(ha->rsp_q_map);
ha->rsp_q_map = NULL;
}
static int qla25xx_setup_mode(struct scsi_qla_host *vha)
{
uint16_t options = 0;
int ques, req, ret;
struct qla_hw_data *ha = vha->hw;
if (!(ha->fw_attributes & BIT_6)) {
qla_printk(KERN_INFO, ha,
"Firmware is not multi-queue capable\n");
goto fail;
}
if (ql2xmultique_tag) {
/* create a request queue for IO */
options |= BIT_7;
req = qla25xx_create_req_que(ha, options, 0, 0, -1,
QLA_DEFAULT_QUE_QOS);
if (!req) {
qla_printk(KERN_WARNING, ha,
"Can't create request queue\n");
goto fail;
}
ha->wq = create_workqueue("qla2xxx_wq");
vha->req = ha->req_q_map[req];
options |= BIT_1;
for (ques = 1; ques < ha->max_rsp_queues; ques++) {
ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
if (!ret) {
qla_printk(KERN_WARNING, ha,
"Response Queue create failed\n");
goto fail2;
}
}
ha->flags.cpu_affinity_enabled = 1;
DEBUG2(qla_printk(KERN_INFO, ha,
"CPU affinity mode enabled, no. of response"
" queues:%d, no. of request queues:%d\n",
ha->max_rsp_queues, ha->max_req_queues));
}
return 0;
fail2:
qla25xx_delete_queues(vha);
destroy_workqueue(ha->wq);
ha->wq = NULL;
fail:
ha->mqenable = 0;
kfree(ha->req_q_map);
kfree(ha->rsp_q_map);
ha->max_req_queues = ha->max_rsp_queues = 1;
return 1;
}
static char *
qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
{
struct qla_hw_data *ha = vha->hw;
static char *pci_bus_modes[] = {
"33", "66", "100", "133",
};
uint16_t pci_bus;
strcpy(str, "PCI");
pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
if (pci_bus) {
strcat(str, "-X (");
strcat(str, pci_bus_modes[pci_bus]);
} else {
pci_bus = (ha->pci_attr & BIT_8) >> 8;
strcat(str, " (");
strcat(str, pci_bus_modes[pci_bus]);
}
strcat(str, " MHz)");
return (str);
}
static char *
qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
{
static char *pci_bus_modes[] = { "33", "66", "100", "133", };
struct qla_hw_data *ha = vha->hw;
uint32_t pci_bus;
int pcie_reg;
pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
if (pcie_reg) {
char lwstr[6];
uint16_t pcie_lstat, lspeed, lwidth;
pcie_reg += 0x12;
pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
lwidth = (pcie_lstat &
(BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
strcpy(str, "PCIe (");
if (lspeed == 1)
strcat(str, "2.5GT/s ");
else if (lspeed == 2)
strcat(str, "5.0GT/s ");
else
strcat(str, "<unknown> ");
snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
strcat(str, lwstr);
return str;
}
strcpy(str, "PCI");
pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
if (pci_bus == 0 || pci_bus == 8) {
strcat(str, " (");
strcat(str, pci_bus_modes[pci_bus >> 3]);
} else {
strcat(str, "-X ");
if (pci_bus & BIT_2)
strcat(str, "Mode 2");
else
strcat(str, "Mode 1");
strcat(str, " (");
strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
}
strcat(str, " MHz)");
return str;
}
static char *
qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
{
char un_str[10];
struct qla_hw_data *ha = vha->hw;
sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
ha->fw_minor_version,
ha->fw_subminor_version);
if (ha->fw_attributes & BIT_9) {
strcat(str, "FLX");
return (str);
}
switch (ha->fw_attributes & 0xFF) {
case 0x7:
strcat(str, "EF");
break;
case 0x17:
strcat(str, "TP");
break;
case 0x37:
strcat(str, "IP");
break;
case 0x77:
strcat(str, "VI");
break;
default:
sprintf(un_str, "(%x)", ha->fw_attributes);
strcat(str, un_str);
break;
}
if (ha->fw_attributes & 0x100)
strcat(str, "X");
return (str);
}
static char *
qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
{
struct qla_hw_data *ha = vha->hw;
sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
return str;
}
static inline srb_t *
qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
{
srb_t *sp;
struct qla_hw_data *ha = vha->hw;
sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
if (!sp)
return sp;
sp->fcport = fcport;
sp->cmd = cmd;
sp->flags = 0;
CMD_SP(cmd) = (void *)sp;
cmd->scsi_done = done;
sp->ctx = NULL;
return sp;
}
static int
qla2xxx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
{
scsi_qla_host_t *vha = shost_priv(cmd->device->host);
fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
srb_t *sp;
int rval;
if (ha->flags.eeh_busy) {
if (ha->flags.pci_channel_io_perm_failure)
cmd->result = DID_NO_CONNECT << 16;
else
cmd->result = DID_REQUEUE << 16;
goto qc24_fail_command;
}
rval = fc_remote_port_chkready(rport);
if (rval) {
cmd->result = rval;
goto qc24_fail_command;
}
/* Close window on fcport/rport state-transitioning. */
if (fcport->drport)
goto qc24_target_busy;
if (atomic_read(&fcport->state) != FCS_ONLINE) {
if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
cmd->result = DID_NO_CONNECT << 16;
goto qc24_fail_command;
}
goto qc24_target_busy;
}
spin_unlock_irq(vha->host->host_lock);
sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
if (!sp)
goto qc24_host_busy_lock;
rval = ha->isp_ops->start_scsi(sp);
if (rval != QLA_SUCCESS)
goto qc24_host_busy_free_sp;
spin_lock_irq(vha->host->host_lock);
return 0;
qc24_host_busy_free_sp:
qla2x00_sp_free_dma(sp);
mempool_free(sp, ha->srb_mempool);
qc24_host_busy_lock:
spin_lock_irq(vha->host->host_lock);
return SCSI_MLQUEUE_HOST_BUSY;
qc24_target_busy:
return SCSI_MLQUEUE_TARGET_BUSY;
qc24_fail_command:
done(cmd);
return 0;
}
/*
* qla2x00_eh_wait_on_command
* Waits for the command to be returned by the Firmware for some
* max time.
*
* Input:
* cmd = Scsi Command to wait on.
*
* Return:
* Not Found : 0
* Found : 1
*/
static int
qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
{
#define ABORT_POLLING_PERIOD 1000
#define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
unsigned long wait_iter = ABORT_WAIT_ITER;
scsi_qla_host_t *vha = shost_priv(cmd->device->host);
struct qla_hw_data *ha = vha->hw;
int ret = QLA_SUCCESS;
if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
DEBUG17(qla_printk(KERN_WARNING, ha, "return:eh_wait\n"));
return ret;
}
while (CMD_SP(cmd) && wait_iter--) {
msleep(ABORT_POLLING_PERIOD);
}
if (CMD_SP(cmd))
ret = QLA_FUNCTION_FAILED;
return ret;
}
/*
* qla2x00_wait_for_hba_online
* Wait till the HBA is online after going through
* <= MAX_RETRIES_OF_ISP_ABORT or
* finally HBA is disabled ie marked offline
*
* Input:
* ha - pointer to host adapter structure
*
* Note:
* Does context switching-Release SPIN_LOCK
* (if any) before calling this routine.
*
* Return:
* Success (Adapter is online) : 0
* Failed (Adapter is offline/disabled) : 1
*/
int
qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
{
int return_status;
unsigned long wait_online;
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
ha->dpc_active) && time_before(jiffies, wait_online)) {
msleep(1000);
}
if (base_vha->flags.online)
return_status = QLA_SUCCESS;
else
return_status = QLA_FUNCTION_FAILED;
return (return_status);
}
int
qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
{
int return_status;
unsigned long wait_reset;
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
ha->dpc_active) && time_before(jiffies, wait_reset)) {
msleep(1000);
if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
ha->flags.chip_reset_done)
break;
}
if (ha->flags.chip_reset_done)
return_status = QLA_SUCCESS;
else
return_status = QLA_FUNCTION_FAILED;
return return_status;
}
/*
* qla2x00_wait_for_loop_ready
* Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
* to be in LOOP_READY state.
* Input:
* ha - pointer to host adapter structure
*
* Note:
* Does context switching-Release SPIN_LOCK
* (if any) before calling this routine.
*
*
* Return:
* Success (LOOP_READY) : 0
* Failed (LOOP_NOT_READY) : 1
*/
static inline int
qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
{
int return_status = QLA_SUCCESS;
unsigned long loop_timeout ;
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
/* wait for 5 min at the max for loop to be ready */
loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
while ((!atomic_read(&base_vha->loop_down_timer) &&
atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
atomic_read(&base_vha->loop_state) != LOOP_READY) {
if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
return_status = QLA_FUNCTION_FAILED;
break;
}
msleep(1000);
if (time_after_eq(jiffies, loop_timeout)) {
return_status = QLA_FUNCTION_FAILED;
break;
}
}
return (return_status);
}
/**************************************************************************
* qla2xxx_eh_abort
*
* Description:
* The abort function will abort the specified command.
*
* Input:
* cmd = Linux SCSI command packet to be aborted.
*
* Returns:
* Either SUCCESS or FAILED.
*
* Note:
* Only return FAILED if command not returned by firmware.
**************************************************************************/
static int
qla2xxx_eh_abort(struct scsi_cmnd *cmd)
{
scsi_qla_host_t *vha = shost_priv(cmd->device->host);
srb_t *sp;
int ret, i;
unsigned int id, lun;
unsigned long serial;
unsigned long flags;
int wait = 0;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = vha->req;
srb_t *spt;
fc_block_scsi_eh(cmd);
if (!CMD_SP(cmd))
return SUCCESS;
ret = SUCCESS;
id = cmd->device->id;
lun = cmd->device->lun;
serial = cmd->serial_number;
spt = (srb_t *) CMD_SP(cmd);
if (!spt)
return SUCCESS;
/* Check active list for command command. */
spin_lock_irqsave(&ha->hardware_lock, flags);
for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
sp = req->outstanding_cmds[i];
if (sp == NULL)
continue;
if (sp->ctx)
continue;
if (sp->cmd != cmd)
continue;
DEBUG2(printk("%s(%ld): aborting sp %p from RISC."
" pid=%ld.\n", __func__, vha->host_no, sp, serial));
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (ha->isp_ops->abort_command(sp)) {
DEBUG2(printk("%s(%ld): abort_command "
"mbx failed.\n", __func__, vha->host_no));
ret = FAILED;
} else {
DEBUG3(printk("%s(%ld): abort_command "
"mbx success.\n", __func__, vha->host_no));
wait = 1;
}
spin_lock_irqsave(&ha->hardware_lock, flags);
break;
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
/* Wait for the command to be returned. */
if (wait) {
if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
qla_printk(KERN_ERR, ha,
"scsi(%ld:%d:%d): Abort handler timed out -- %lx "
"%x.\n", vha->host_no, id, lun, serial, ret);
ret = FAILED;
}
}
qla_printk(KERN_INFO, ha,
"scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
vha->host_no, id, lun, wait, serial, ret);
return ret;
}
enum nexus_wait_type {
WAIT_HOST = 0,
WAIT_TARGET,
WAIT_LUN,
};
static int
qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
unsigned int l, srb_t *sp, enum nexus_wait_type type)
{
int cnt, match, status;
unsigned long flags;
struct qla_hw_data *ha = vha->hw;
struct req_que *req;
status = QLA_SUCCESS;
if (!sp)
return status;
spin_lock_irqsave(&ha->hardware_lock, flags);
req = vha->req;
for (cnt = 1; status == QLA_SUCCESS &&
cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
sp = req->outstanding_cmds[cnt];
if (!sp)
continue;
if (sp->ctx)
continue;
if (vha->vp_idx != sp->fcport->vha->vp_idx)
continue;
match = 0;
switch (type) {
case WAIT_HOST:
match = 1;
break;
case WAIT_TARGET:
match = sp->cmd->device->id == t;
break;
case WAIT_LUN:
match = (sp->cmd->device->id == t &&
sp->cmd->device->lun == l);
break;
}
if (!match)
continue;
spin_unlock_irqrestore(&ha->hardware_lock, flags);
status = qla2x00_eh_wait_on_command(sp->cmd);
spin_lock_irqsave(&ha->hardware_lock, flags);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return status;
}
static char *reset_errors[] = {
"HBA not online",
"HBA not ready",
"Task management failed",
"Waiting for command completions",
};
static int
__qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
{
scsi_qla_host_t *vha = shost_priv(cmd->device->host);
fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
int err;
fc_block_scsi_eh(cmd);
if (!fcport)
return FAILED;
qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
vha->host_no, cmd->device->id, cmd->device->lun, name);
err = 0;
if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
goto eh_reset_failed;
err = 1;
if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
goto eh_reset_failed;
err = 2;
if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
!= QLA_SUCCESS)
goto eh_reset_failed;
err = 3;
if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
cmd->device->lun, (srb_t *) CMD_SP(cmd), type) != QLA_SUCCESS)
goto eh_reset_failed;
qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
vha->host_no, cmd->device->id, cmd->device->lun, name);
return SUCCESS;
eh_reset_failed:
qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
, vha->host_no, cmd->device->id, cmd->device->lun, name,
reset_errors[err]);
return FAILED;
}
static int
qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
{
scsi_qla_host_t *vha = shost_priv(cmd->device->host);
struct qla_hw_data *ha = vha->hw;
return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
ha->isp_ops->lun_reset);
}
static int
qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
{
scsi_qla_host_t *vha = shost_priv(cmd->device->host);
struct qla_hw_data *ha = vha->hw;
return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
ha->isp_ops->target_reset);
}
/**************************************************************************
* qla2xxx_eh_bus_reset
*
* Description:
* The bus reset function will reset the bus and abort any executing
* commands.
*
* Input:
* cmd = Linux SCSI command packet of the command that cause the
* bus reset.
*
* Returns:
* SUCCESS/FAILURE (defined as macro in scsi.h).
*
**************************************************************************/
static int
qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
{
scsi_qla_host_t *vha = shost_priv(cmd->device->host);
fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
int ret = FAILED;
unsigned int id, lun;
unsigned long serial;
srb_t *sp = (srb_t *) CMD_SP(cmd);
fc_block_scsi_eh(cmd);
id = cmd->device->id;
lun = cmd->device->lun;
serial = cmd->serial_number;
if (!fcport)
return ret;
qla_printk(KERN_INFO, vha->hw,
"scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
DEBUG2(printk("%s failed:board disabled\n",__func__));
goto eh_bus_reset_done;
}
if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
ret = SUCCESS;
}
if (ret == FAILED)
goto eh_bus_reset_done;
/* Flush outstanding commands. */
if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) !=
QLA_SUCCESS)
ret = FAILED;
eh_bus_reset_done:
qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
(ret == FAILED) ? "failed" : "succeded");
return ret;
}
/**************************************************************************
* qla2xxx_eh_host_reset
*
* Description:
* The reset function will reset the Adapter.
*
* Input:
* cmd = Linux SCSI command packet of the command that cause the
* adapter reset.
*
* Returns:
* Either SUCCESS or FAILED.
*
* Note:
**************************************************************************/
static int
qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
{
scsi_qla_host_t *vha = shost_priv(cmd->device->host);
fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
struct qla_hw_data *ha = vha->hw;
int ret = FAILED;
unsigned int id, lun;
unsigned long serial;
srb_t *sp = (srb_t *) CMD_SP(cmd);
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
fc_block_scsi_eh(cmd);
id = cmd->device->id;
lun = cmd->device->lun;
serial = cmd->serial_number;
if (!fcport)
return ret;
qla_printk(KERN_INFO, ha,
"scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
goto eh_host_reset_lock;
/*
* Fixme-may be dpc thread is active and processing
* loop_resync,so wait a while for it to
* be completed and then issue big hammer.Otherwise
* it may cause I/O failure as big hammer marks the
* devices as lost kicking of the port_down_timer
* while dpc is stuck for the mailbox to complete.
*/
qla2x00_wait_for_loop_ready(vha);
if (vha != base_vha) {
if (qla2x00_vp_abort_isp(vha))
goto eh_host_reset_lock;
} else {
if (ha->wq)
flush_workqueue(ha->wq);
set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
if (qla2x00_abort_isp(base_vha)) {
clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
/* failed. schedule dpc to try */
set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
goto eh_host_reset_lock;
}
clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
}
/* Waiting for command to be returned to OS.*/
if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) ==
QLA_SUCCESS)
ret = SUCCESS;
eh_host_reset_lock:
qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
(ret == FAILED) ? "failed" : "succeded");
return ret;
}
/*
* qla2x00_loop_reset
* Issue loop reset.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
int
qla2x00_loop_reset(scsi_qla_host_t *vha)
{
int ret;
struct fc_port *fcport;
struct qla_hw_data *ha = vha->hw;
if (ha->flags.enable_target_reset) {
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->port_type != FCT_TARGET)
continue;
ret = ha->isp_ops->target_reset(fcport, 0, 0);
if (ret != QLA_SUCCESS) {
DEBUG2_3(printk("%s(%ld): bus_reset failed: "
"target_reset=%d d_id=%x.\n", __func__,
vha->host_no, ret, fcport->d_id.b24));
}
}
}
if (ha->flags.enable_lip_full_login && !IS_QLA81XX(ha)) {
ret = qla2x00_full_login_lip(vha);
if (ret != QLA_SUCCESS) {
DEBUG2_3(printk("%s(%ld): failed: "
"full_login_lip=%d.\n", __func__, vha->host_no,
ret));
}
atomic_set(&vha->loop_state, LOOP_DOWN);
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
qla2x00_mark_all_devices_lost(vha, 0);
qla2x00_wait_for_loop_ready(vha);
}
if (ha->flags.enable_lip_reset) {
ret = qla2x00_lip_reset(vha);
if (ret != QLA_SUCCESS) {
DEBUG2_3(printk("%s(%ld): failed: "
"lip_reset=%d.\n", __func__, vha->host_no, ret));
} else
qla2x00_wait_for_loop_ready(vha);
}
/* Issue marker command only when we are going to start the I/O */
vha->marker_needed = 1;
return QLA_SUCCESS;
}
void
qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
{
int que, cnt;
unsigned long flags;
srb_t *sp;
struct srb_ctx *ctx;
struct qla_hw_data *ha = vha->hw;
struct req_que *req;
spin_lock_irqsave(&ha->hardware_lock, flags);
for (que = 0; que < ha->max_req_queues; que++) {
req = ha->req_q_map[que];
if (!req)
continue;
for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
sp = req->outstanding_cmds[cnt];
if (sp) {
req->outstanding_cmds[cnt] = NULL;
if (!sp->ctx) {
sp->cmd->result = res;
qla2x00_sp_compl(ha, sp);
} else {
ctx = sp->ctx;
if (ctx->type == SRB_LOGIN_CMD || ctx->type == SRB_LOGOUT_CMD) {
del_timer_sync(&ctx->timer);
ctx->free(sp);
} else {
struct srb_bsg* sp_bsg = (struct srb_bsg*)sp->ctx;
if (sp_bsg->bsg_job->request->msgcode == FC_BSG_HST_CT)
kfree(sp->fcport);
sp_bsg->bsg_job->req->errors = 0;
sp_bsg->bsg_job->reply->result = res;
sp_bsg->bsg_job->job_done(sp_bsg->bsg_job);
kfree(sp->ctx);
mempool_free(sp, ha->srb_mempool);
}
}
}
}
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
static int
qla2xxx_slave_alloc(struct scsi_device *sdev)
{
struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
if (!rport || fc_remote_port_chkready(rport))
return -ENXIO;
sdev->hostdata = *(fc_port_t **)rport->dd_data;
return 0;
}
static int
qla2xxx_slave_configure(struct scsi_device *sdev)
{
scsi_qla_host_t *vha = shost_priv(sdev->host);
struct qla_hw_data *ha = vha->hw;
struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
struct req_que *req = vha->req;
if (sdev->tagged_supported)
scsi_activate_tcq(sdev, req->max_q_depth);
else
scsi_deactivate_tcq(sdev, req->max_q_depth);
rport->dev_loss_tmo = ha->port_down_retry_count;
return 0;
}
static void
qla2xxx_slave_destroy(struct scsi_device *sdev)
{
sdev->hostdata = NULL;
}
static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
{
fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
if (!scsi_track_queue_full(sdev, qdepth))
return;
DEBUG2(qla_printk(KERN_INFO, fcport->vha->hw,
"scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
sdev->queue_depth));
}
static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
{
fc_port_t *fcport = sdev->hostdata;
struct scsi_qla_host *vha = fcport->vha;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = NULL;
req = vha->req;
if (!req)
return;
if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
return;
if (sdev->ordered_tags)
scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
else
scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
DEBUG2(qla_printk(KERN_INFO, ha,
"scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
sdev->queue_depth));
}
static int
qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
{
switch (reason) {
case SCSI_QDEPTH_DEFAULT:
scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
break;
case SCSI_QDEPTH_QFULL:
qla2x00_handle_queue_full(sdev, qdepth);
break;
case SCSI_QDEPTH_RAMP_UP:
qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
break;
default:
return -EOPNOTSUPP;
}
return sdev->queue_depth;
}
static int
qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
{
if (sdev->tagged_supported) {
scsi_set_tag_type(sdev, tag_type);
if (tag_type)
scsi_activate_tcq(sdev, sdev->queue_depth);
else
scsi_deactivate_tcq(sdev, sdev->queue_depth);
} else
tag_type = 0;
return tag_type;
}
/**
* qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
* @ha: HA context
*
* At exit, the @ha's flags.enable_64bit_addressing set to indicated
* supported addressing method.
*/
static void
qla2x00_config_dma_addressing(struct qla_hw_data *ha)
{
/* Assume a 32bit DMA mask. */
ha->flags.enable_64bit_addressing = 0;
if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
/* Any upper-dword bits set? */
if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
!pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
/* Ok, a 64bit DMA mask is applicable. */
ha->flags.enable_64bit_addressing = 1;
ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
return;
}
}
dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
}
static void
qla2x00_enable_intrs(struct qla_hw_data *ha)
{
unsigned long flags = 0;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->interrupts_on = 1;
/* enable risc and host interrupts */
WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
RD_REG_WORD(&reg->ictrl);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
static void
qla2x00_disable_intrs(struct qla_hw_data *ha)
{
unsigned long flags = 0;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->interrupts_on = 0;
/* disable risc and host interrupts */
WRT_REG_WORD(&reg->ictrl, 0);
RD_REG_WORD(&reg->ictrl);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
static void
qla24xx_enable_intrs(struct qla_hw_data *ha)
{
unsigned long flags = 0;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->interrupts_on = 1;
WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
RD_REG_DWORD(&reg->ictrl);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
static void
qla24xx_disable_intrs(struct qla_hw_data *ha)
{
unsigned long flags = 0;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
if (IS_NOPOLLING_TYPE(ha))
return;
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->interrupts_on = 0;
WRT_REG_DWORD(&reg->ictrl, 0);
RD_REG_DWORD(&reg->ictrl);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
static struct isp_operations qla2100_isp_ops = {
.pci_config = qla2100_pci_config,
.reset_chip = qla2x00_reset_chip,
.chip_diag = qla2x00_chip_diag,
.config_rings = qla2x00_config_rings,
.reset_adapter = qla2x00_reset_adapter,
.nvram_config = qla2x00_nvram_config,
.update_fw_options = qla2x00_update_fw_options,
.load_risc = qla2x00_load_risc,
.pci_info_str = qla2x00_pci_info_str,
.fw_version_str = qla2x00_fw_version_str,
.intr_handler = qla2100_intr_handler,
.enable_intrs = qla2x00_enable_intrs,
.disable_intrs = qla2x00_disable_intrs,
.abort_command = qla2x00_abort_command,
.target_reset = qla2x00_abort_target,
.lun_reset = qla2x00_lun_reset,
.fabric_login = qla2x00_login_fabric,
.fabric_logout = qla2x00_fabric_logout,
.calc_req_entries = qla2x00_calc_iocbs_32,
.build_iocbs = qla2x00_build_scsi_iocbs_32,
.prep_ms_iocb = qla2x00_prep_ms_iocb,
.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
.read_nvram = qla2x00_read_nvram_data,
.write_nvram = qla2x00_write_nvram_data,
.fw_dump = qla2100_fw_dump,
.beacon_on = NULL,
.beacon_off = NULL,
.beacon_blink = NULL,
.read_optrom = qla2x00_read_optrom_data,
.write_optrom = qla2x00_write_optrom_data,
.get_flash_version = qla2x00_get_flash_version,
.start_scsi = qla2x00_start_scsi,
};
static struct isp_operations qla2300_isp_ops = {
.pci_config = qla2300_pci_config,
.reset_chip = qla2x00_reset_chip,
.chip_diag = qla2x00_chip_diag,
.config_rings = qla2x00_config_rings,
.reset_adapter = qla2x00_reset_adapter,
.nvram_config = qla2x00_nvram_config,
.update_fw_options = qla2x00_update_fw_options,
.load_risc = qla2x00_load_risc,
.pci_info_str = qla2x00_pci_info_str,
.fw_version_str = qla2x00_fw_version_str,
.intr_handler = qla2300_intr_handler,
.enable_intrs = qla2x00_enable_intrs,
.disable_intrs = qla2x00_disable_intrs,
.abort_command = qla2x00_abort_command,
.target_reset = qla2x00_abort_target,
.lun_reset = qla2x00_lun_reset,
.fabric_login = qla2x00_login_fabric,
.fabric_logout = qla2x00_fabric_logout,
.calc_req_entries = qla2x00_calc_iocbs_32,
.build_iocbs = qla2x00_build_scsi_iocbs_32,
.prep_ms_iocb = qla2x00_prep_ms_iocb,
.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
.read_nvram = qla2x00_read_nvram_data,
.write_nvram = qla2x00_write_nvram_data,
.fw_dump = qla2300_fw_dump,
.beacon_on = qla2x00_beacon_on,
.beacon_off = qla2x00_beacon_off,
.beacon_blink = qla2x00_beacon_blink,
.read_optrom = qla2x00_read_optrom_data,
.write_optrom = qla2x00_write_optrom_data,
.get_flash_version = qla2x00_get_flash_version,
.start_scsi = qla2x00_start_scsi,
};
static struct isp_operations qla24xx_isp_ops = {
.pci_config = qla24xx_pci_config,
.reset_chip = qla24xx_reset_chip,
.chip_diag = qla24xx_chip_diag,
.config_rings = qla24xx_config_rings,
.reset_adapter = qla24xx_reset_adapter,
.nvram_config = qla24xx_nvram_config,
.update_fw_options = qla24xx_update_fw_options,
.load_risc = qla24xx_load_risc,
.pci_info_str = qla24xx_pci_info_str,
.fw_version_str = qla24xx_fw_version_str,
.intr_handler = qla24xx_intr_handler,
.enable_intrs = qla24xx_enable_intrs,
.disable_intrs = qla24xx_disable_intrs,
.abort_command = qla24xx_abort_command,
.target_reset = qla24xx_abort_target,
.lun_reset = qla24xx_lun_reset,
.fabric_login = qla24xx_login_fabric,
.fabric_logout = qla24xx_fabric_logout,
.calc_req_entries = NULL,
.build_iocbs = NULL,
.prep_ms_iocb = qla24xx_prep_ms_iocb,
.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
.read_nvram = qla24xx_read_nvram_data,
.write_nvram = qla24xx_write_nvram_data,
.fw_dump = qla24xx_fw_dump,
.beacon_on = qla24xx_beacon_on,
.beacon_off = qla24xx_beacon_off,
.beacon_blink = qla24xx_beacon_blink,
.read_optrom = qla24xx_read_optrom_data,
.write_optrom = qla24xx_write_optrom_data,
.get_flash_version = qla24xx_get_flash_version,
.start_scsi = qla24xx_start_scsi,
};
static struct isp_operations qla25xx_isp_ops = {
.pci_config = qla25xx_pci_config,
.reset_chip = qla24xx_reset_chip,
.chip_diag = qla24xx_chip_diag,
.config_rings = qla24xx_config_rings,
.reset_adapter = qla24xx_reset_adapter,
.nvram_config = qla24xx_nvram_config,
.update_fw_options = qla24xx_update_fw_options,
.load_risc = qla24xx_load_risc,
.pci_info_str = qla24xx_pci_info_str,
.fw_version_str = qla24xx_fw_version_str,
.intr_handler = qla24xx_intr_handler,
.enable_intrs = qla24xx_enable_intrs,
.disable_intrs = qla24xx_disable_intrs,
.abort_command = qla24xx_abort_command,
.target_reset = qla24xx_abort_target,
.lun_reset = qla24xx_lun_reset,
.fabric_login = qla24xx_login_fabric,
.fabric_logout = qla24xx_fabric_logout,
.calc_req_entries = NULL,
.build_iocbs = NULL,
.prep_ms_iocb = qla24xx_prep_ms_iocb,
.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
.read_nvram = qla25xx_read_nvram_data,
.write_nvram = qla25xx_write_nvram_data,
.fw_dump = qla25xx_fw_dump,
.beacon_on = qla24xx_beacon_on,
.beacon_off = qla24xx_beacon_off,
.beacon_blink = qla24xx_beacon_blink,
.read_optrom = qla25xx_read_optrom_data,
.write_optrom = qla24xx_write_optrom_data,
.get_flash_version = qla24xx_get_flash_version,
.start_scsi = qla24xx_start_scsi,
};
static struct isp_operations qla81xx_isp_ops = {
.pci_config = qla25xx_pci_config,
.reset_chip = qla24xx_reset_chip,
.chip_diag = qla24xx_chip_diag,
.config_rings = qla24xx_config_rings,
.reset_adapter = qla24xx_reset_adapter,
.nvram_config = qla81xx_nvram_config,
.update_fw_options = qla81xx_update_fw_options,
.load_risc = qla81xx_load_risc,
.pci_info_str = qla24xx_pci_info_str,
.fw_version_str = qla24xx_fw_version_str,
.intr_handler = qla24xx_intr_handler,
.enable_intrs = qla24xx_enable_intrs,
.disable_intrs = qla24xx_disable_intrs,
.abort_command = qla24xx_abort_command,
.target_reset = qla24xx_abort_target,
.lun_reset = qla24xx_lun_reset,
.fabric_login = qla24xx_login_fabric,
.fabric_logout = qla24xx_fabric_logout,
.calc_req_entries = NULL,
.build_iocbs = NULL,
.prep_ms_iocb = qla24xx_prep_ms_iocb,
.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
.read_nvram = NULL,
.write_nvram = NULL,
.fw_dump = qla81xx_fw_dump,
.beacon_on = qla24xx_beacon_on,
.beacon_off = qla24xx_beacon_off,
.beacon_blink = qla24xx_beacon_blink,
.read_optrom = qla25xx_read_optrom_data,
.write_optrom = qla24xx_write_optrom_data,
.get_flash_version = qla24xx_get_flash_version,
.start_scsi = qla24xx_start_scsi,
};
static inline void
qla2x00_set_isp_flags(struct qla_hw_data *ha)
{
ha->device_type = DT_EXTENDED_IDS;
switch (ha->pdev->device) {
case PCI_DEVICE_ID_QLOGIC_ISP2100:
ha->device_type |= DT_ISP2100;
ha->device_type &= ~DT_EXTENDED_IDS;
ha->fw_srisc_address = RISC_START_ADDRESS_2100;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2200:
ha->device_type |= DT_ISP2200;
ha->device_type &= ~DT_EXTENDED_IDS;
ha->fw_srisc_address = RISC_START_ADDRESS_2100;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2300:
ha->device_type |= DT_ISP2300;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->fw_srisc_address = RISC_START_ADDRESS_2300;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2312:
ha->device_type |= DT_ISP2312;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->fw_srisc_address = RISC_START_ADDRESS_2300;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2322:
ha->device_type |= DT_ISP2322;
ha->device_type |= DT_ZIO_SUPPORTED;
if (ha->pdev->subsystem_vendor == 0x1028 &&
ha->pdev->subsystem_device == 0x0170)
ha->device_type |= DT_OEM_001;
ha->fw_srisc_address = RISC_START_ADDRESS_2300;
break;
case PCI_DEVICE_ID_QLOGIC_ISP6312:
ha->device_type |= DT_ISP6312;
ha->fw_srisc_address = RISC_START_ADDRESS_2300;
break;
case PCI_DEVICE_ID_QLOGIC_ISP6322:
ha->device_type |= DT_ISP6322;
ha->fw_srisc_address = RISC_START_ADDRESS_2300;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2422:
ha->device_type |= DT_ISP2422;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->device_type |= DT_IIDMA;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2432:
ha->device_type |= DT_ISP2432;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->device_type |= DT_IIDMA;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP8432:
ha->device_type |= DT_ISP8432;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->device_type |= DT_IIDMA;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP5422:
ha->device_type |= DT_ISP5422;
ha->device_type |= DT_FWI2;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP5432:
ha->device_type |= DT_ISP5432;
ha->device_type |= DT_FWI2;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2532:
ha->device_type |= DT_ISP2532;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->device_type |= DT_IIDMA;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP8001:
ha->device_type |= DT_ISP8001;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->device_type |= DT_IIDMA;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
}
/* Get adapter physical port no from interrupt pin register. */
pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
if (ha->port_no & 1)
ha->flags.port0 = 1;
else
ha->flags.port0 = 0;
}
static int
qla2x00_iospace_config(struct qla_hw_data *ha)
{
resource_size_t pio;
uint16_t msix;
int cpus;
if (pci_request_selected_regions(ha->pdev, ha->bars,
QLA2XXX_DRIVER_NAME)) {
qla_printk(KERN_WARNING, ha,
"Failed to reserve PIO/MMIO regions (%s)\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
if (!(ha->bars & 1))
goto skip_pio;
/* We only need PIO for Flash operations on ISP2312 v2 chips. */
pio = pci_resource_start(ha->pdev, 0);
if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
qla_printk(KERN_WARNING, ha,
"Invalid PCI I/O region size (%s)...\n",
pci_name(ha->pdev));
pio = 0;
}
} else {
qla_printk(KERN_WARNING, ha,
"region #0 not a PIO resource (%s)...\n",
pci_name(ha->pdev));
pio = 0;
}
ha->pio_address = pio;
skip_pio:
/* Use MMIO operations for all accesses. */
if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
qla_printk(KERN_ERR, ha,
"region #1 not an MMIO resource (%s), aborting\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
qla_printk(KERN_ERR, ha,
"Invalid PCI mem region size (%s), aborting\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
if (!ha->iobase) {
qla_printk(KERN_ERR, ha,
"cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
goto iospace_error_exit;
}
/* Determine queue resources */
ha->max_req_queues = ha->max_rsp_queues = 1;
if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
(ql2xmaxqueues > 1 && ql2xmultique_tag) ||
(!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
goto mqiobase_exit;
ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
pci_resource_len(ha->pdev, 3));
if (ha->mqiobase) {
/* Read MSIX vector size of the board */
pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
ha->msix_count = msix;
/* Max queues are bounded by available msix vectors */
/* queue 0 uses two msix vectors */
if (ql2xmultique_tag) {
cpus = num_online_cpus();
ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
(cpus + 1) : (ha->msix_count - 1);
ha->max_req_queues = 2;
} else if (ql2xmaxqueues > 1) {
ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
QLA_MQ_SIZE : ql2xmaxqueues;
DEBUG2(qla_printk(KERN_INFO, ha, "QoS mode set, max no"
" of request queues:%d\n", ha->max_req_queues));
}
qla_printk(KERN_INFO, ha,
"MSI-X vector count: %d\n", msix);
} else
qla_printk(KERN_INFO, ha, "BAR 3 not enabled\n");
mqiobase_exit:
ha->msix_count = ha->max_rsp_queues + 1;
return (0);
iospace_error_exit:
return (-ENOMEM);
}
static void
qla2xxx_scan_start(struct Scsi_Host *shost)
{
scsi_qla_host_t *vha = shost_priv(shost);
if (vha->hw->flags.running_gold_fw)
return;
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
set_bit(RSCN_UPDATE, &vha->dpc_flags);
set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
}
static int
qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
scsi_qla_host_t *vha = shost_priv(shost);
if (!vha->host)
return 1;
if (time > vha->hw->loop_reset_delay * HZ)
return 1;
return atomic_read(&vha->loop_state) == LOOP_READY;
}
/*
* PCI driver interface
*/
static int __devinit
qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
int ret = -ENODEV;
struct Scsi_Host *host;
scsi_qla_host_t *base_vha = NULL;
struct qla_hw_data *ha;
char pci_info[30];
char fw_str[30];
struct scsi_host_template *sht;
int bars, max_id, mem_only = 0;
uint16_t req_length = 0, rsp_length = 0;
struct req_que *req = NULL;
struct rsp_que *rsp = NULL;
bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
sht = &qla2xxx_driver_template;
if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001) {
bars = pci_select_bars(pdev, IORESOURCE_MEM);
mem_only = 1;
}
if (mem_only) {
if (pci_enable_device_mem(pdev))
goto probe_out;
} else {
if (pci_enable_device(pdev))
goto probe_out;
}
/* This may fail but that's ok */
pci_enable_pcie_error_reporting(pdev);
ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
if (!ha) {
DEBUG(printk("Unable to allocate memory for ha\n"));
goto probe_out;
}
ha->pdev = pdev;
/* Clear our data area */
ha->bars = bars;
ha->mem_only = mem_only;
spin_lock_init(&ha->hardware_lock);
/* Set ISP-type information. */
qla2x00_set_isp_flags(ha);
/* Set EEH reset type to fundamental if required by hba */
if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
pdev->needs_freset = 1;
}
/* Configure PCI I/O space */
ret = qla2x00_iospace_config(ha);
if (ret)
goto probe_hw_failed;
qla_printk(KERN_INFO, ha,
"Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
ha->iobase);
ha->prev_topology = 0;
ha->init_cb_size = sizeof(init_cb_t);
ha->link_data_rate = PORT_SPEED_UNKNOWN;
ha->optrom_size = OPTROM_SIZE_2300;
/* Assign ISP specific operations. */
max_id = MAX_TARGETS_2200;
if (IS_QLA2100(ha)) {
max_id = MAX_TARGETS_2100;
ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
req_length = REQUEST_ENTRY_CNT_2100;
rsp_length = RESPONSE_ENTRY_CNT_2100;
ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
ha->gid_list_info_size = 4;
ha->flash_conf_off = ~0;
ha->flash_data_off = ~0;
ha->nvram_conf_off = ~0;
ha->nvram_data_off = ~0;
ha->isp_ops = &qla2100_isp_ops;
} else if (IS_QLA2200(ha)) {
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_2200;
rsp_length = RESPONSE_ENTRY_CNT_2100;
ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
ha->gid_list_info_size = 4;
ha->flash_conf_off = ~0;
ha->flash_data_off = ~0;
ha->nvram_conf_off = ~0;
ha->nvram_data_off = ~0;
ha->isp_ops = &qla2100_isp_ops;
} else if (IS_QLA23XX(ha)) {
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_2200;
rsp_length = RESPONSE_ENTRY_CNT_2300;
ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
ha->gid_list_info_size = 6;
if (IS_QLA2322(ha) || IS_QLA6322(ha))
ha->optrom_size = OPTROM_SIZE_2322;
ha->flash_conf_off = ~0;
ha->flash_data_off = ~0;
ha->nvram_conf_off = ~0;
ha->nvram_data_off = ~0;
ha->isp_ops = &qla2300_isp_ops;
} else if (IS_QLA24XX_TYPE(ha)) {
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_24XX;
rsp_length = RESPONSE_ENTRY_CNT_2300;
ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
ha->gid_list_info_size = 8;
ha->optrom_size = OPTROM_SIZE_24XX;
ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
ha->isp_ops = &qla24xx_isp_ops;
ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
} else if (IS_QLA25XX(ha)) {
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_24XX;
rsp_length = RESPONSE_ENTRY_CNT_2300;
ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
ha->gid_list_info_size = 8;
ha->optrom_size = OPTROM_SIZE_25XX;
ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
ha->isp_ops = &qla25xx_isp_ops;
ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
} else if (IS_QLA81XX(ha)) {
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_24XX;
rsp_length = RESPONSE_ENTRY_CNT_2300;
ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
ha->gid_list_info_size = 8;
ha->optrom_size = OPTROM_SIZE_81XX;
ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
ha->isp_ops = &qla81xx_isp_ops;
ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
ha->nvram_conf_off = ~0;
ha->nvram_data_off = ~0;
}
mutex_init(&ha->vport_lock);
init_completion(&ha->mbx_cmd_comp);
complete(&ha->mbx_cmd_comp);
init_completion(&ha->mbx_intr_comp);
set_bit(0, (unsigned long *) ha->vp_idx_map);
qla2x00_config_dma_addressing(ha);
ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
if (!ret) {
qla_printk(KERN_WARNING, ha,
"[ERROR] Failed to allocate memory for adapter\n");
goto probe_hw_failed;
}
req->max_q_depth = MAX_Q_DEPTH;
if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
req->max_q_depth = ql2xmaxqdepth;
base_vha = qla2x00_create_host(sht, ha);
if (!base_vha) {
qla_printk(KERN_WARNING, ha,
"[ERROR] Failed to allocate memory for scsi_host\n");
ret = -ENOMEM;
qla2x00_mem_free(ha);
qla2x00_free_req_que(ha, req);
qla2x00_free_rsp_que(ha, rsp);
goto probe_hw_failed;
}
pci_set_drvdata(pdev, base_vha);
host = base_vha->host;
base_vha->req = req;
host->can_queue = req->length + 128;
if (IS_QLA2XXX_MIDTYPE(ha))
base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
else
base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
base_vha->vp_idx;
if (IS_QLA2100(ha))
host->sg_tablesize = 32;
host->max_id = max_id;
host->this_id = 255;
host->cmd_per_lun = 3;
host->unique_id = host->host_no;
host->max_cmd_len = MAX_CMDSZ;
host->max_channel = MAX_BUSES - 1;
host->max_lun = MAX_LUNS;
host->transportt = qla2xxx_transport_template;
sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
/* Set up the irqs */
ret = qla2x00_request_irqs(ha, rsp);
if (ret)
goto probe_init_failed;
pci_save_state(pdev);
/* Alloc arrays of request and response ring ptrs */
que_init:
if (!qla2x00_alloc_queues(ha)) {
qla_printk(KERN_WARNING, ha,
"[ERROR] Failed to allocate memory for queue"
" pointers\n");
goto probe_init_failed;
}
ha->rsp_q_map[0] = rsp;
ha->req_q_map[0] = req;
rsp->req = req;
req->rsp = rsp;
set_bit(0, ha->req_qid_map);
set_bit(0, ha->rsp_qid_map);
/* FWI2-capable only. */
req->req_q_in = &ha->iobase->isp24.req_q_in;
req->req_q_out = &ha->iobase->isp24.req_q_out;
rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
if (ha->mqenable) {
req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
rsp->rsp_q_out = &ha->mqiobase->isp25mq.rsp_q_out;
}
if (qla2x00_initialize_adapter(base_vha)) {
qla_printk(KERN_WARNING, ha,
"Failed to initialize adapter\n");
DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
"Adapter flags %x.\n",
base_vha->host_no, base_vha->device_flags));
ret = -ENODEV;
goto probe_failed;
}
if (ha->mqenable) {
if (qla25xx_setup_mode(base_vha)) {
qla_printk(KERN_WARNING, ha,
"Can't create queues, falling back to single"
" queue mode\n");
goto que_init;
}
}
if (ha->flags.running_gold_fw)
goto skip_dpc;
/*
* Startup the kernel thread for this host adapter
*/
ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
"%s_dpc", base_vha->host_str);
if (IS_ERR(ha->dpc_thread)) {
qla_printk(KERN_WARNING, ha,
"Unable to start DPC thread!\n");
ret = PTR_ERR(ha->dpc_thread);
goto probe_failed;
}
skip_dpc:
list_add_tail(&base_vha->list, &ha->vp_list);
base_vha->host->irq = ha->pdev->irq;
/* Initialized the timer */
qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
base_vha->host_no, ha));
ret = scsi_add_host(host, &pdev->dev);
if (ret)
goto probe_failed;
base_vha->flags.init_done = 1;
base_vha->flags.online = 1;
ha->isp_ops->enable_intrs(ha);
scsi_scan_host(host);
qla2x00_alloc_sysfs_attr(base_vha);
qla2x00_init_host_attr(base_vha);
qla2x00_dfs_setup(base_vha);
qla_printk(KERN_INFO, ha, "\n"
" QLogic Fibre Channel HBA Driver: %s\n"
" QLogic %s - %s\n"
" ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
qla2x00_version_str, ha->model_number,
ha->model_desc ? ha->model_desc : "", pdev->device,
ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
ha->isp_ops->fw_version_str(base_vha, fw_str));
return 0;
probe_init_failed:
qla2x00_free_req_que(ha, req);
qla2x00_free_rsp_que(ha, rsp);
ha->max_req_queues = ha->max_rsp_queues = 0;
probe_failed:
if (base_vha->timer_active)
qla2x00_stop_timer(base_vha);
base_vha->flags.online = 0;
if (ha->dpc_thread) {
struct task_struct *t = ha->dpc_thread;
ha->dpc_thread = NULL;
kthread_stop(t);
}
qla2x00_free_device(base_vha);
scsi_host_put(base_vha->host);
probe_hw_failed:
if (ha->iobase)
iounmap(ha->iobase);
pci_release_selected_regions(ha->pdev, ha->bars);
kfree(ha);
ha = NULL;
probe_out:
pci_disable_device(pdev);
return ret;
}
static void
qla2x00_remove_one(struct pci_dev *pdev)
{
scsi_qla_host_t *base_vha, *vha, *temp;
struct qla_hw_data *ha;
base_vha = pci_get_drvdata(pdev);
ha = base_vha->hw;
list_for_each_entry_safe(vha, temp, &ha->vp_list, list) {
if (vha && vha->fc_vport)
fc_vport_terminate(vha->fc_vport);
}
set_bit(UNLOADING, &base_vha->dpc_flags);
qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
qla2x00_dfs_remove(base_vha);
qla84xx_put_chip(base_vha);
/* Disable timer */
if (base_vha->timer_active)
qla2x00_stop_timer(base_vha);
base_vha->flags.online = 0;
/* Flush the work queue and remove it */
if (ha->wq) {
flush_workqueue(ha->wq);
destroy_workqueue(ha->wq);
ha->wq = NULL;
}
/* Kill the kernel thread for this host */
if (ha->dpc_thread) {
struct task_struct *t = ha->dpc_thread;
/*
* qla2xxx_wake_dpc checks for ->dpc_thread
* so we need to zero it out.
*/
ha->dpc_thread = NULL;
kthread_stop(t);
}
qla2x00_free_sysfs_attr(base_vha);
fc_remove_host(base_vha->host);
scsi_remove_host(base_vha->host);
qla2x00_free_device(base_vha);
scsi_host_put(base_vha->host);
if (ha->iobase)
iounmap(ha->iobase);
if (ha->mqiobase)
iounmap(ha->mqiobase);
pci_release_selected_regions(ha->pdev, ha->bars);
kfree(ha);
ha = NULL;
pci_disable_pcie_error_reporting(pdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
}
static void
qla2x00_free_device(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
/* Disable timer */
if (vha->timer_active)
qla2x00_stop_timer(vha);
/* Kill the kernel thread for this host */
if (ha->dpc_thread) {
struct task_struct *t = ha->dpc_thread;
/*
* qla2xxx_wake_dpc checks for ->dpc_thread
* so we need to zero it out.
*/
ha->dpc_thread = NULL;
kthread_stop(t);
}
qla25xx_delete_queues(vha);
if (ha->flags.fce_enabled)
qla2x00_disable_fce_trace(vha, NULL, NULL);
if (ha->eft)
qla2x00_disable_eft_trace(vha);
/* Stop currently executing firmware. */
qla2x00_try_to_stop_firmware(vha);
vha->flags.online = 0;
/* turn-off interrupts on the card */
if (ha->interrupts_on)
ha->isp_ops->disable_intrs(ha);
qla2x00_free_irqs(vha);
qla2x00_mem_free(ha);
qla2x00_free_queues(ha);
}
static inline void
qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
int defer)
{
struct fc_rport *rport;
scsi_qla_host_t *base_vha;
if (!fcport->rport)
return;
rport = fcport->rport;
if (defer) {
base_vha = pci_get_drvdata(vha->hw->pdev);
spin_lock_irq(vha->host->host_lock);
fcport->drport = rport;
spin_unlock_irq(vha->host->host_lock);
set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
qla2xxx_wake_dpc(base_vha);
} else
fc_remote_port_delete(rport);
}
/*
* qla2x00_mark_device_lost Updates fcport state when device goes offline.
*
* Input: ha = adapter block pointer. fcport = port structure pointer.
*
* Return: None.
*
* Context:
*/
void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
int do_login, int defer)
{
if (atomic_read(&fcport->state) == FCS_ONLINE &&
vha->vp_idx == fcport->vp_idx) {
atomic_set(&fcport->state, FCS_DEVICE_LOST);
qla2x00_schedule_rport_del(vha, fcport, defer);
}
/*
* We may need to retry the login, so don't change the state of the
* port but do the retries.
*/
if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
atomic_set(&fcport->state, FCS_DEVICE_LOST);
if (!do_login)
return;
if (fcport->login_retry == 0) {
fcport->login_retry = vha->hw->login_retry_count;
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
DEBUG(printk("scsi(%ld): Port login retry: "
"%02x%02x%02x%02x%02x%02x%02x%02x, "
"id = 0x%04x retry cnt=%d\n",
vha->host_no,
fcport->port_name[0],
fcport->port_name[1],
fcport->port_name[2],
fcport->port_name[3],
fcport->port_name[4],
fcport->port_name[5],
fcport->port_name[6],
fcport->port_name[7],
fcport->loop_id,
fcport->login_retry));
}
}
/*
* qla2x00_mark_all_devices_lost
* Updates fcport state when device goes offline.
*
* Input:
* ha = adapter block pointer.
* fcport = port structure pointer.
*
* Return:
* None.
*
* Context:
*/
void
qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
{
fc_port_t *fcport;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
continue;
/*
* No point in marking the device as lost, if the device is
* already DEAD.
*/
if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
continue;
if (atomic_read(&fcport->state) == FCS_ONLINE) {
if (defer)
qla2x00_schedule_rport_del(vha, fcport, defer);
else if (vha->vp_idx == fcport->vp_idx)
qla2x00_schedule_rport_del(vha, fcport, defer);
}
atomic_set(&fcport->state, FCS_DEVICE_LOST);
}
}
/*
* qla2x00_mem_alloc
* Allocates adapter memory.
*
* Returns:
* 0 = success.
* !0 = failure.
*/
static int
qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
struct req_que **req, struct rsp_que **rsp)
{
char name[16];
ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
&ha->init_cb_dma, GFP_KERNEL);
if (!ha->init_cb)
goto fail;
ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
&ha->gid_list_dma, GFP_KERNEL);
if (!ha->gid_list)
goto fail_free_init_cb;
ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
if (!ha->srb_mempool)
goto fail_free_gid_list;
/* Get memory for cached NVRAM */
ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
if (!ha->nvram)
goto fail_free_srb_mempool;
snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
ha->pdev->device);
ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
DMA_POOL_SIZE, 8, 0);
if (!ha->s_dma_pool)
goto fail_free_nvram;
/* Allocate memory for SNS commands */
if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
/* Get consistent memory allocated for SNS commands */
ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
if (!ha->sns_cmd)
goto fail_dma_pool;
} else {
/* Get consistent memory allocated for MS IOCB */
ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
&ha->ms_iocb_dma);
if (!ha->ms_iocb)
goto fail_dma_pool;
/* Get consistent memory allocated for CT SNS commands */
ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
if (!ha->ct_sns)
goto fail_free_ms_iocb;
}
/* Allocate memory for request ring */
*req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
if (!*req) {
DEBUG(printk("Unable to allocate memory for req\n"));
goto fail_req;
}
(*req)->length = req_len;
(*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
((*req)->length + 1) * sizeof(request_t),
&(*req)->dma, GFP_KERNEL);
if (!(*req)->ring) {
DEBUG(printk("Unable to allocate memory for req_ring\n"));
goto fail_req_ring;
}
/* Allocate memory for response ring */
*rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
if (!*rsp) {
qla_printk(KERN_WARNING, ha,
"Unable to allocate memory for rsp\n");
goto fail_rsp;
}
(*rsp)->hw = ha;
(*rsp)->length = rsp_len;
(*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
((*rsp)->length + 1) * sizeof(response_t),
&(*rsp)->dma, GFP_KERNEL);
if (!(*rsp)->ring) {
qla_printk(KERN_WARNING, ha,
"Unable to allocate memory for rsp_ring\n");
goto fail_rsp_ring;
}
(*req)->rsp = *rsp;
(*rsp)->req = *req;
/* Allocate memory for NVRAM data for vports */
if (ha->nvram_npiv_size) {
ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
ha->nvram_npiv_size, GFP_KERNEL);
if (!ha->npiv_info) {
qla_printk(KERN_WARNING, ha,
"Unable to allocate memory for npiv info\n");
goto fail_npiv_info;
}
} else
ha->npiv_info = NULL;
/* Get consistent memory allocated for EX-INIT-CB. */
if (IS_QLA81XX(ha)) {
ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
&ha->ex_init_cb_dma);
if (!ha->ex_init_cb)
goto fail_ex_init_cb;
}
INIT_LIST_HEAD(&ha->vp_list);
return 1;
fail_ex_init_cb:
kfree(ha->npiv_info);
fail_npiv_info:
dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
(*rsp)->ring = NULL;
(*rsp)->dma = 0;
fail_rsp_ring:
kfree(*rsp);
fail_rsp:
dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
sizeof(request_t), (*req)->ring, (*req)->dma);
(*req)->ring = NULL;
(*req)->dma = 0;
fail_req_ring:
kfree(*req);
fail_req:
dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
ha->ct_sns, ha->ct_sns_dma);
ha->ct_sns = NULL;
ha->ct_sns_dma = 0;
fail_free_ms_iocb:
dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
ha->ms_iocb = NULL;
ha->ms_iocb_dma = 0;
fail_dma_pool:
dma_pool_destroy(ha->s_dma_pool);
ha->s_dma_pool = NULL;
fail_free_nvram:
kfree(ha->nvram);
ha->nvram = NULL;
fail_free_srb_mempool:
mempool_destroy(ha->srb_mempool);
ha->srb_mempool = NULL;
fail_free_gid_list:
dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
ha->gid_list_dma);
ha->gid_list = NULL;
ha->gid_list_dma = 0;
fail_free_init_cb:
dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
ha->init_cb_dma);
ha->init_cb = NULL;
ha->init_cb_dma = 0;
fail:
DEBUG(printk("%s: Memory allocation failure\n", __func__));
return -ENOMEM;
}
/*
* qla2x00_mem_free
* Frees all adapter allocated memory.
*
* Input:
* ha = adapter block pointer.
*/
static void
qla2x00_mem_free(struct qla_hw_data *ha)
{
if (ha->srb_mempool)
mempool_destroy(ha->srb_mempool);
if (ha->fce)
dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
ha->fce_dma);
if (ha->fw_dump) {
if (ha->eft)
dma_free_coherent(&ha->pdev->dev,
ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
vfree(ha->fw_dump);
}
if (ha->dcbx_tlv)
dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
ha->dcbx_tlv, ha->dcbx_tlv_dma);
if (ha->xgmac_data)
dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
ha->xgmac_data, ha->xgmac_data_dma);
if (ha->sns_cmd)
dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
ha->sns_cmd, ha->sns_cmd_dma);
if (ha->ct_sns)
dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
ha->ct_sns, ha->ct_sns_dma);
if (ha->sfp_data)
dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
if (ha->edc_data)
dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
if (ha->ms_iocb)
dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
if (ha->ex_init_cb)
dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
if (ha->s_dma_pool)
dma_pool_destroy(ha->s_dma_pool);
if (ha->gid_list)
dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
ha->gid_list_dma);
if (ha->init_cb)
dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
ha->init_cb, ha->init_cb_dma);
vfree(ha->optrom_buffer);
kfree(ha->nvram);
kfree(ha->npiv_info);
ha->srb_mempool = NULL;
ha->eft = NULL;
ha->eft_dma = 0;
ha->sns_cmd = NULL;
ha->sns_cmd_dma = 0;
ha->ct_sns = NULL;
ha->ct_sns_dma = 0;
ha->ms_iocb = NULL;
ha->ms_iocb_dma = 0;
ha->init_cb = NULL;
ha->init_cb_dma = 0;
ha->ex_init_cb = NULL;
ha->ex_init_cb_dma = 0;
ha->s_dma_pool = NULL;
ha->gid_list = NULL;
ha->gid_list_dma = 0;
ha->fw_dump = NULL;
ha->fw_dumped = 0;
ha->fw_dump_reading = 0;
}
struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
struct qla_hw_data *ha)
{
struct Scsi_Host *host;
struct scsi_qla_host *vha = NULL;
host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
if (host == NULL) {
printk(KERN_WARNING
"qla2xxx: Couldn't allocate host from scsi layer!\n");
goto fail;
}
/* Clear our data area */
vha = shost_priv(host);
memset(vha, 0, sizeof(scsi_qla_host_t));
vha->host = host;
vha->host_no = host->host_no;
vha->hw = ha;
INIT_LIST_HEAD(&vha->vp_fcports);
INIT_LIST_HEAD(&vha->work_list);
INIT_LIST_HEAD(&vha->list);
spin_lock_init(&vha->work_lock);
sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
return vha;
fail:
return vha;
}
static struct qla_work_evt *
qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
{
struct qla_work_evt *e;
e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
if (!e)
return NULL;
INIT_LIST_HEAD(&e->list);
e->type = type;
e->flags = QLA_EVT_FLAG_FREE;
return e;
}
static int
qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
{
unsigned long flags;
spin_lock_irqsave(&vha->work_lock, flags);
list_add_tail(&e->list, &vha->work_list);
spin_unlock_irqrestore(&vha->work_lock, flags);
qla2xxx_wake_dpc(vha);
return QLA_SUCCESS;
}
int
qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
u32 data)
{
struct qla_work_evt *e;
e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
if (!e)
return QLA_FUNCTION_FAILED;
e->u.aen.code = code;
e->u.aen.data = data;
return qla2x00_post_work(vha, e);
}
int
qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
{
struct qla_work_evt *e;
e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
if (!e)
return QLA_FUNCTION_FAILED;
memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
return qla2x00_post_work(vha, e);
}
#define qla2x00_post_async_work(name, type) \
int qla2x00_post_async_##name##_work( \
struct scsi_qla_host *vha, \
fc_port_t *fcport, uint16_t *data) \
{ \
struct qla_work_evt *e; \
\
e = qla2x00_alloc_work(vha, type); \
if (!e) \
return QLA_FUNCTION_FAILED; \
\
e->u.logio.fcport = fcport; \
if (data) { \
e->u.logio.data[0] = data[0]; \
e->u.logio.data[1] = data[1]; \
} \
return qla2x00_post_work(vha, e); \
}
qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
int
qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
{
struct qla_work_evt *e;
e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
if (!e)
return QLA_FUNCTION_FAILED;
e->u.uevent.code = code;
return qla2x00_post_work(vha, e);
}
static void
qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
{
char event_string[40];
char *envp[] = { event_string, NULL };
switch (code) {
case QLA_UEVENT_CODE_FW_DUMP:
snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
vha->host_no);
break;
default:
/* do nothing */
break;
}
kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
}
void
qla2x00_do_work(struct scsi_qla_host *vha)
{
struct qla_work_evt *e, *tmp;
unsigned long flags;
LIST_HEAD(work);
spin_lock_irqsave(&vha->work_lock, flags);
list_splice_init(&vha->work_list, &work);
spin_unlock_irqrestore(&vha->work_lock, flags);
list_for_each_entry_safe(e, tmp, &work, list) {
list_del_init(&e->list);
switch (e->type) {
case QLA_EVT_AEN:
fc_host_post_event(vha->host, fc_get_event_number(),
e->u.aen.code, e->u.aen.data);
break;
case QLA_EVT_IDC_ACK:
qla81xx_idc_ack(vha, e->u.idc_ack.mb);
break;
case QLA_EVT_ASYNC_LOGIN:
qla2x00_async_login(vha, e->u.logio.fcport,
e->u.logio.data);
break;
case QLA_EVT_ASYNC_LOGIN_DONE:
qla2x00_async_login_done(vha, e->u.logio.fcport,
e->u.logio.data);
break;
case QLA_EVT_ASYNC_LOGOUT:
qla2x00_async_logout(vha, e->u.logio.fcport);
break;
case QLA_EVT_ASYNC_LOGOUT_DONE:
qla2x00_async_logout_done(vha, e->u.logio.fcport,
e->u.logio.data);
break;
case QLA_EVT_UEVENT:
qla2x00_uevent_emit(vha, e->u.uevent.code);
break;
}
if (e->flags & QLA_EVT_FLAG_FREE)
kfree(e);
}
}
/* Relogins all the fcports of a vport
* Context: dpc thread
*/
void qla2x00_relogin(struct scsi_qla_host *vha)
{
fc_port_t *fcport;
int status;
uint16_t next_loopid = 0;
struct qla_hw_data *ha = vha->hw;
uint16_t data[2];
list_for_each_entry(fcport, &vha->vp_fcports, list) {
/*
* If the port is not ONLINE then try to login
* to it if we haven't run out of retries.
*/
if (atomic_read(&fcport->state) !=
FCS_ONLINE && fcport->login_retry) {
fcport->login_retry--;
if (fcport->flags & FCF_FABRIC_DEVICE) {
if (fcport->flags & FCF_FCP2_DEVICE)
ha->isp_ops->fabric_logout(vha,
fcport->loop_id,
fcport->d_id.b.domain,
fcport->d_id.b.area,
fcport->d_id.b.al_pa);
if (IS_ALOGIO_CAPABLE(ha)) {
data[0] = 0;
data[1] = QLA_LOGIO_LOGIN_RETRIED;
status = qla2x00_post_async_login_work(
vha, fcport, data);
if (status == QLA_SUCCESS)
continue;
/* Attempt a retry. */
status = 1;
} else
status = qla2x00_fabric_login(vha,
fcport, &next_loopid);
} else
status = qla2x00_local_device_login(vha,
fcport);
if (status == QLA_SUCCESS) {
fcport->old_loop_id = fcport->loop_id;
DEBUG(printk("scsi(%ld): port login OK: logged "
"in ID 0x%x\n", vha->host_no, fcport->loop_id));
qla2x00_update_fcport(vha, fcport);
} else if (status == 1) {
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
/* retry the login again */
DEBUG(printk("scsi(%ld): Retrying"
" %d login again loop_id 0x%x\n",
vha->host_no, fcport->login_retry,
fcport->loop_id));
} else {
fcport->login_retry = 0;
}
if (fcport->login_retry == 0 && status != QLA_SUCCESS)
fcport->loop_id = FC_NO_LOOP_ID;
}
if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
break;
}
}
/**************************************************************************
* qla2x00_do_dpc
* This kernel thread is a task that is schedule by the interrupt handler
* to perform the background processing for interrupts.
*
* Notes:
* This task always run in the context of a kernel thread. It
* is kick-off by the driver's detect code and starts up
* up one per adapter. It immediately goes to sleep and waits for
* some fibre event. When either the interrupt handler or
* the timer routine detects a event it will one of the task
* bits then wake us up.
**************************************************************************/
static int
qla2x00_do_dpc(void *data)
{
int rval;
scsi_qla_host_t *base_vha;
struct qla_hw_data *ha;
ha = (struct qla_hw_data *)data;
base_vha = pci_get_drvdata(ha->pdev);
set_user_nice(current, -20);
while (!kthread_should_stop()) {
DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
set_current_state(TASK_INTERRUPTIBLE);
schedule();
__set_current_state(TASK_RUNNING);
DEBUG3(printk("qla2x00: DPC handler waking up\n"));
/* Initialization not yet finished. Don't do anything yet. */
if (!base_vha->flags.init_done)
continue;
if (ha->flags.eeh_busy) {
DEBUG17(qla_printk(KERN_WARNING, ha,
"qla2x00_do_dpc: dpc_flags: %lx\n",
base_vha->dpc_flags));
continue;
}
DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
ha->dpc_active = 1;
if (ha->flags.mbox_busy) {
ha->dpc_active = 0;
continue;
}
qla2x00_do_work(base_vha);
if (test_and_clear_bit(ISP_ABORT_NEEDED,
&base_vha->dpc_flags)) {
DEBUG(printk("scsi(%ld): dpc: sched "
"qla2x00_abort_isp ha = %p\n",
base_vha->host_no, ha));
if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
&base_vha->dpc_flags))) {
if (qla2x00_abort_isp(base_vha)) {
/* failed. retry later */
set_bit(ISP_ABORT_NEEDED,
&base_vha->dpc_flags);
}
clear_bit(ABORT_ISP_ACTIVE,
&base_vha->dpc_flags);
}
DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
base_vha->host_no));
}
if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
qla2x00_update_fcports(base_vha);
clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
}
if (test_and_clear_bit(RESET_MARKER_NEEDED,
&base_vha->dpc_flags) &&
(!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
base_vha->host_no));
qla2x00_rst_aen(base_vha);
clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
}
/* Retry each device up to login retry count */
if ((test_and_clear_bit(RELOGIN_NEEDED,
&base_vha->dpc_flags)) &&
!test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
base_vha->host_no));
qla2x00_relogin(base_vha);
DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
base_vha->host_no));
}
if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
&base_vha->dpc_flags)) {
DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
base_vha->host_no));
if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
&base_vha->dpc_flags))) {
rval = qla2x00_loop_resync(base_vha);
clear_bit(LOOP_RESYNC_ACTIVE,
&base_vha->dpc_flags);
}
DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
base_vha->host_no));
}
if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
atomic_read(&base_vha->loop_state) == LOOP_READY) {
clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
qla2xxx_flash_npiv_conf(base_vha);
}
if (!ha->interrupts_on)
ha->isp_ops->enable_intrs(ha);
if (test_and_clear_bit(BEACON_BLINK_NEEDED,
&base_vha->dpc_flags))
ha->isp_ops->beacon_blink(base_vha);
qla2x00_do_dpc_all_vps(base_vha);
ha->dpc_active = 0;
} /* End of while(1) */
DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
/*
* Make sure that nobody tries to wake us up again.
*/
ha->dpc_active = 0;
/* Cleanup any residual CTX SRBs. */
qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
return 0;
}
void
qla2xxx_wake_dpc(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
struct task_struct *t = ha->dpc_thread;
if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
wake_up_process(t);
}
/*
* qla2x00_rst_aen
* Processes asynchronous reset.
*
* Input:
* ha = adapter block pointer.
*/
static void
qla2x00_rst_aen(scsi_qla_host_t *vha)
{
if (vha->flags.online && !vha->flags.reset_active &&
!atomic_read(&vha->loop_down_timer) &&
!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
do {
clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
/*
* Issue marker command only when we are going to start
* the I/O.
*/
vha->marker_needed = 1;
} while (!atomic_read(&vha->loop_down_timer) &&
(test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
}
}
static void
qla2x00_sp_free_dma(srb_t *sp)
{
struct scsi_cmnd *cmd = sp->cmd;
if (sp->flags & SRB_DMA_VALID) {
scsi_dma_unmap(cmd);
sp->flags &= ~SRB_DMA_VALID;
}
CMD_SP(cmd) = NULL;
}
void
qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
{
struct scsi_cmnd *cmd = sp->cmd;
qla2x00_sp_free_dma(sp);
mempool_free(sp, ha->srb_mempool);
cmd->scsi_done(cmd);
}
/**************************************************************************
* qla2x00_timer
*
* Description:
* One second timer
*
* Context: Interrupt
***************************************************************************/
void
qla2x00_timer(scsi_qla_host_t *vha)
{
unsigned long cpu_flags = 0;
fc_port_t *fcport;
int start_dpc = 0;
int index;
srb_t *sp;
int t;
uint16_t w;
struct qla_hw_data *ha = vha->hw;
struct req_que *req;
/* Hardware read to raise pending EEH errors during mailbox waits. */
if (!pci_channel_offline(ha->pdev))
pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
/*
* Ports - Port down timer.
*
* Whenever, a port is in the LOST state we start decrementing its port
* down timer every second until it reaches zero. Once it reaches zero
* the port it marked DEAD.
*/
t = 0;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->port_type != FCT_TARGET)
continue;
if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
if (atomic_read(&fcport->port_down_timer) == 0)
continue;
if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
atomic_set(&fcport->state, FCS_DEVICE_DEAD);
DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
"%d remaining\n",
vha->host_no,
t, atomic_read(&fcport->port_down_timer)));
}
t++;
} /* End of for fcport */
/* Loop down handler. */
if (atomic_read(&vha->loop_down_timer) > 0 &&
!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
&& vha->flags.online) {
if (atomic_read(&vha->loop_down_timer) ==
vha->loop_down_abort_time) {
DEBUG(printk("scsi(%ld): Loop Down - aborting the "
"queues before time expire\n",
vha->host_no));
if (!IS_QLA2100(ha) && vha->link_down_timeout)
atomic_set(&vha->loop_state, LOOP_DEAD);
/*
* Schedule an ISP abort to return any FCP2-device
* commands.
*/
/* NPIV - scan physical port only */
if (!vha->vp_idx) {
spin_lock_irqsave(&ha->hardware_lock,
cpu_flags);
req = ha->req_q_map[0];
for (index = 1;
index < MAX_OUTSTANDING_COMMANDS;
index++) {
fc_port_t *sfcp;
sp = req->outstanding_cmds[index];
if (!sp)
continue;
if (sp->ctx)
continue;
sfcp = sp->fcport;
if (!(sfcp->flags & FCF_FCP2_DEVICE))
continue;
set_bit(ISP_ABORT_NEEDED,
&vha->dpc_flags);
break;
}
spin_unlock_irqrestore(&ha->hardware_lock,
cpu_flags);
}
start_dpc++;
}
/* if the loop has been down for 4 minutes, reinit adapter */
if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
if (!(vha->device_flags & DFLG_NO_CABLE)) {
DEBUG(printk("scsi(%ld): Loop down - "
"aborting ISP.\n",
vha->host_no));
qla_printk(KERN_WARNING, ha,
"Loop down - aborting ISP.\n");
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
}
}
DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
vha->host_no,
atomic_read(&vha->loop_down_timer)));
}
/* Check if beacon LED needs to be blinked */
if (ha->beacon_blink_led == 1) {
set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
start_dpc++;
}
/* Process any deferred work. */
if (!list_empty(&vha->work_list))
start_dpc++;
/* Schedule the DPC routine if needed */
if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
start_dpc ||
test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
qla2xxx_wake_dpc(vha);
qla2x00_restart_timer(vha, WATCH_INTERVAL);
}
/* Firmware interface routines. */
#define FW_BLOBS 7
#define FW_ISP21XX 0
#define FW_ISP22XX 1
#define FW_ISP2300 2
#define FW_ISP2322 3
#define FW_ISP24XX 4
#define FW_ISP25XX 5
#define FW_ISP81XX 6
#define FW_FILE_ISP21XX "ql2100_fw.bin"
#define FW_FILE_ISP22XX "ql2200_fw.bin"
#define FW_FILE_ISP2300 "ql2300_fw.bin"
#define FW_FILE_ISP2322 "ql2322_fw.bin"
#define FW_FILE_ISP24XX "ql2400_fw.bin"
#define FW_FILE_ISP25XX "ql2500_fw.bin"
#define FW_FILE_ISP81XX "ql8100_fw.bin"
static DEFINE_MUTEX(qla_fw_lock);
static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
{ .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
{ .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
{ .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
{ .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
{ .name = FW_FILE_ISP24XX, },
{ .name = FW_FILE_ISP25XX, },
{ .name = FW_FILE_ISP81XX, },
};
struct fw_blob *
qla2x00_request_firmware(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
struct fw_blob *blob;
blob = NULL;
if (IS_QLA2100(ha)) {
blob = &qla_fw_blobs[FW_ISP21XX];
} else if (IS_QLA2200(ha)) {
blob = &qla_fw_blobs[FW_ISP22XX];
} else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
blob = &qla_fw_blobs[FW_ISP2300];
} else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
blob = &qla_fw_blobs[FW_ISP2322];
} else if (IS_QLA24XX_TYPE(ha)) {
blob = &qla_fw_blobs[FW_ISP24XX];
} else if (IS_QLA25XX(ha)) {
blob = &qla_fw_blobs[FW_ISP25XX];
} else if (IS_QLA81XX(ha)) {
blob = &qla_fw_blobs[FW_ISP81XX];
}
mutex_lock(&qla_fw_lock);
if (blob->fw)
goto out;
if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
DEBUG2(printk("scsi(%ld): Failed to load firmware image "
"(%s).\n", vha->host_no, blob->name));
blob->fw = NULL;
blob = NULL;
goto out;
}
out:
mutex_unlock(&qla_fw_lock);
return blob;
}
static void
qla2x00_release_firmware(void)
{
int idx;
mutex_lock(&qla_fw_lock);
for (idx = 0; idx < FW_BLOBS; idx++)
if (qla_fw_blobs[idx].fw)
release_firmware(qla_fw_blobs[idx].fw);
mutex_unlock(&qla_fw_lock);
}
static pci_ers_result_t
qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
{
scsi_qla_host_t *vha = pci_get_drvdata(pdev);
struct qla_hw_data *ha = vha->hw;
DEBUG2(qla_printk(KERN_WARNING, ha, "error_detected:state %x\n",
state));
switch (state) {
case pci_channel_io_normal:
ha->flags.eeh_busy = 0;
return PCI_ERS_RESULT_CAN_RECOVER;
case pci_channel_io_frozen:
ha->flags.eeh_busy = 1;
qla2x00_free_irqs(vha);
pci_disable_device(pdev);
return PCI_ERS_RESULT_NEED_RESET;
case pci_channel_io_perm_failure:
ha->flags.pci_channel_io_perm_failure = 1;
qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
return PCI_ERS_RESULT_DISCONNECT;
}
return PCI_ERS_RESULT_NEED_RESET;
}
static pci_ers_result_t
qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
{
int risc_paused = 0;
uint32_t stat;
unsigned long flags;
scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
struct qla_hw_data *ha = base_vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
spin_lock_irqsave(&ha->hardware_lock, flags);
if (IS_QLA2100(ha) || IS_QLA2200(ha)){
stat = RD_REG_DWORD(&reg->hccr);
if (stat & HCCR_RISC_PAUSE)
risc_paused = 1;
} else if (IS_QLA23XX(ha)) {
stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
if (stat & HSR_RISC_PAUSED)
risc_paused = 1;
} else if (IS_FWI2_CAPABLE(ha)) {
stat = RD_REG_DWORD(&reg24->host_status);
if (stat & HSRX_RISC_PAUSED)
risc_paused = 1;
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (risc_paused) {
qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
"Dumping firmware!\n");
ha->isp_ops->fw_dump(base_vha, 0);
return PCI_ERS_RESULT_NEED_RESET;
} else
return PCI_ERS_RESULT_RECOVERED;
}
static pci_ers_result_t
qla2xxx_pci_slot_reset(struct pci_dev *pdev)
{
pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
struct qla_hw_data *ha = base_vha->hw;
struct rsp_que *rsp;
int rc, retries = 10;
DEBUG17(qla_printk(KERN_WARNING, ha, "slot_reset\n"));
/* Workaround: qla2xxx driver which access hardware earlier
* needs error state to be pci_channel_io_online.
* Otherwise mailbox command timesout.
*/
pdev->error_state = pci_channel_io_normal;
pci_restore_state(pdev);
/* pci_restore_state() clears the saved_state flag of the device
* save restored state which resets saved_state flag
*/
pci_save_state(pdev);
if (ha->mem_only)
rc = pci_enable_device_mem(pdev);
else
rc = pci_enable_device(pdev);
if (rc) {
qla_printk(KERN_WARNING, ha,
"Can't re-enable PCI device after reset.\n");
return ret;
}
rsp = ha->rsp_q_map[0];
if (qla2x00_request_irqs(ha, rsp))
return ret;
if (ha->isp_ops->pci_config(base_vha))
return ret;
while (ha->flags.mbox_busy && retries--)
msleep(1000);
set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
if (qla2x00_abort_isp(base_vha) == QLA_SUCCESS)
ret = PCI_ERS_RESULT_RECOVERED;
clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
pci_cleanup_aer_uncorrect_error_status(pdev);
DEBUG17(qla_printk(KERN_WARNING, ha,
"slot_reset-return:ret=%x\n", ret));
return ret;
}
static void
qla2xxx_pci_resume(struct pci_dev *pdev)
{
scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
struct qla_hw_data *ha = base_vha->hw;
int ret;
DEBUG17(qla_printk(KERN_WARNING, ha, "pci_resume\n"));
ret = qla2x00_wait_for_hba_online(base_vha);
if (ret != QLA_SUCCESS) {
qla_printk(KERN_ERR, ha,
"the device failed to resume I/O "
"from slot/link_reset");
}
ha->flags.eeh_busy = 0;
}
static struct pci_error_handlers qla2xxx_err_handler = {
.error_detected = qla2xxx_pci_error_detected,
.mmio_enabled = qla2xxx_pci_mmio_enabled,
.slot_reset = qla2xxx_pci_slot_reset,
.resume = qla2xxx_pci_resume,
};
static struct pci_device_id qla2xxx_pci_tbl[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
{ 0 },
};
MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
static struct pci_driver qla2xxx_pci_driver = {
.name = QLA2XXX_DRIVER_NAME,
.driver = {
.owner = THIS_MODULE,
},
.id_table = qla2xxx_pci_tbl,
.probe = qla2x00_probe_one,
.remove = qla2x00_remove_one,
.err_handler = &qla2xxx_err_handler,
};
/**
* qla2x00_module_init - Module initialization.
**/
static int __init
qla2x00_module_init(void)
{
int ret = 0;
/* Allocate cache for SRBs. */
srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
SLAB_HWCACHE_ALIGN, NULL);
if (srb_cachep == NULL) {
printk(KERN_ERR
"qla2xxx: Unable to allocate SRB cache...Failing load!\n");
return -ENOMEM;
}
/* Derive version string. */
strcpy(qla2x00_version_str, QLA2XXX_VERSION);
if (ql2xextended_error_logging)
strcat(qla2x00_version_str, "-debug");
qla2xxx_transport_template =
fc_attach_transport(&qla2xxx_transport_functions);
if (!qla2xxx_transport_template) {
kmem_cache_destroy(srb_cachep);
return -ENODEV;
}
qla2xxx_transport_vport_template =
fc_attach_transport(&qla2xxx_transport_vport_functions);
if (!qla2xxx_transport_vport_template) {
kmem_cache_destroy(srb_cachep);
fc_release_transport(qla2xxx_transport_template);
return -ENODEV;
}
printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
qla2x00_version_str);
ret = pci_register_driver(&qla2xxx_pci_driver);
if (ret) {
kmem_cache_destroy(srb_cachep);
fc_release_transport(qla2xxx_transport_template);
fc_release_transport(qla2xxx_transport_vport_template);
}
return ret;
}
/**
* qla2x00_module_exit - Module cleanup.
**/
static void __exit
qla2x00_module_exit(void)
{
pci_unregister_driver(&qla2xxx_pci_driver);
qla2x00_release_firmware();
kmem_cache_destroy(srb_cachep);
fc_release_transport(qla2xxx_transport_template);
fc_release_transport(qla2xxx_transport_vport_template);
}
module_init(qla2x00_module_init);
module_exit(qla2x00_module_exit);
MODULE_AUTHOR("QLogic Corporation");
MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(QLA2XXX_VERSION);
MODULE_FIRMWARE(FW_FILE_ISP21XX);
MODULE_FIRMWARE(FW_FILE_ISP22XX);
MODULE_FIRMWARE(FW_FILE_ISP2300);
MODULE_FIRMWARE(FW_FILE_ISP2322);
MODULE_FIRMWARE(FW_FILE_ISP24XX);
MODULE_FIRMWARE(FW_FILE_ISP25XX);