* HPSA_DRIVER_VERSION must be 3 byte values (0-255) separated by '.'
* with an optional trailing '-' followed by a byte value (0-255).
*/
-#define HPSA_DRIVER_VERSION "3.4.20-160"
+#define HPSA_DRIVER_VERSION "3.4.20-170"
#define DRIVER_NAME "HP HPSA Driver (v " HPSA_DRIVER_VERSION ")"
#define HPSA "hpsa"
/*define how many times we will try a command because of bus resets */
#define MAX_CMD_RETRIES 3
+/* How long to wait before giving up on a command */
+#define HPSA_EH_PTRAID_TIMEOUT (240 * HZ)
/* Embedded module documentation macros - see modules.h */
MODULE_AUTHOR("Hewlett-Packard Company");
return c->scsi_cmd == SCSI_CMD_IDLE;
}
-static inline bool hpsa_is_pending_event(struct CommandList *c)
-{
- return c->reset_pending;
-}
-
/* extract sense key, asc, and ascq from sense data. -1 means invalid. */
static void decode_sense_data(const u8 *sense_data, int sense_data_len,
u8 *sense_key, u8 *asc, u8 *ascq)
{
dial_down_lockup_detection_during_fw_flash(h, c);
atomic_inc(&h->commands_outstanding);
+ if (c->device)
+ atomic_inc(&c->device->commands_outstanding);
reply_queue = h->reply_map[raw_smp_processor_id()];
switch (c->cmd_type) {
static void enqueue_cmd_and_start_io(struct ctlr_info *h, struct CommandList *c)
{
- if (unlikely(hpsa_is_pending_event(c)))
- return finish_cmd(c);
-
__enqueue_cmd_and_start_io(h, c, DEFAULT_REPLY_QUEUE);
}
return count;
}
+#define NUM_WAIT 20
static void hpsa_wait_for_outstanding_commands_for_dev(struct ctlr_info *h,
struct hpsa_scsi_dev_t *device)
{
int cmds = 0;
int waits = 0;
+ int num_wait = NUM_WAIT;
+
+ if (device->external)
+ num_wait = HPSA_EH_PTRAID_TIMEOUT;
while (1) {
cmds = hpsa_find_outstanding_commands_for_dev(h, device);
if (cmds == 0)
break;
- if (++waits > 20)
+ if (++waits > num_wait)
break;
msleep(1000);
}
- if (waits > 20)
+ if (waits > num_wait) {
dev_warn(&h->pdev->dev,
- "%s: removing device with %d outstanding commands!\n",
- __func__, cmds);
+ "%s: removing device [%d:%d:%d:%d] with %d outstanding commands!\n",
+ __func__,
+ h->scsi_host->host_no,
+ device->bus, device->target, device->lun, cmds);
+ }
}
static void hpsa_remove_device(struct ctlr_info *h,
sdev->no_uld_attach = !sd || !sd->expose_device;
if (sd) {
- if (sd->external)
+ sd->was_removed = 0;
+ if (sd->external) {
queue_depth = EXTERNAL_QD;
- else
+ sdev->eh_timeout = HPSA_EH_PTRAID_TIMEOUT;
+ blk_queue_rq_timeout(sdev->request_queue,
+ HPSA_EH_PTRAID_TIMEOUT);
+ } else {
queue_depth = sd->queue_depth != 0 ?
sd->queue_depth : sdev->host->can_queue;
+ }
} else
queue_depth = sdev->host->can_queue;
static void hpsa_slave_destroy(struct scsi_device *sdev)
{
- /* nothing to do. */
+ struct hpsa_scsi_dev_t *hdev = NULL;
+
+ hdev = sdev->hostdata;
+
+ if (hdev)
+ hdev->was_removed = 1;
}
static void hpsa_free_ioaccel2_sg_chain_blocks(struct ctlr_info *h)
break;
}
+ if (dev->in_reset)
+ retry = 0;
+
return retry; /* retry on raid path? */
}
static void hpsa_cmd_resolve_events(struct ctlr_info *h,
struct CommandList *c)
{
- bool do_wake = false;
+ struct hpsa_scsi_dev_t *dev = c->device;
/*
* Reset c->scsi_cmd here so that the reset handler will know
*/
c->scsi_cmd = SCSI_CMD_IDLE;
mb(); /* Declare command idle before checking for pending events. */
- if (c->reset_pending) {
- unsigned long flags;
- struct hpsa_scsi_dev_t *dev;
-
- /*
- * There appears to be a reset pending; lock the lock and
- * reconfirm. If so, then decrement the count of outstanding
- * commands and wake the reset command if this is the last one.
- */
- spin_lock_irqsave(&h->lock, flags);
- dev = c->reset_pending; /* Re-fetch under the lock. */
- if (dev && atomic_dec_and_test(&dev->reset_cmds_out))
- do_wake = true;
- c->reset_pending = NULL;
- spin_unlock_irqrestore(&h->lock, flags);
+ if (dev) {
+ atomic_dec(&dev->commands_outstanding);
+ if (dev->in_reset &&
+ atomic_read(&dev->commands_outstanding) <= 0)
+ wake_up_all(&h->event_sync_wait_queue);
}
-
- if (do_wake)
- wake_up_all(&h->event_sync_wait_queue);
}
static void hpsa_cmd_resolve_and_free(struct ctlr_info *h,
dev->offload_to_be_enabled = 0;
}
+ if (dev->in_reset) {
+ cmd->result = DID_RESET << 16;
+ return hpsa_cmd_free_and_done(h, c, cmd);
+ }
+
return hpsa_retry_cmd(h, c);
}
cmd->result = (DID_OK << 16); /* host byte */
cmd->result |= (COMMAND_COMPLETE << 8); /* msg byte */
+ /* SCSI command has already been cleaned up in SML */
+ if (dev->was_removed) {
+ hpsa_cmd_resolve_and_free(h, cp);
+ return;
+ }
+
if (cp->cmd_type == CMD_IOACCEL2 || cp->cmd_type == CMD_IOACCEL1) {
if (dev->physical_device && dev->expose_device &&
dev->removed) {
return hpsa_cmd_free_and_done(h, cp, cmd);
}
- if ((unlikely(hpsa_is_pending_event(cp))))
- if (cp->reset_pending)
- return hpsa_cmd_free_and_done(h, cp, cmd);
-
if (cp->cmd_type == CMD_IOACCEL2)
return process_ioaccel2_completion(h, cp, cmd, dev);
return rc;
}
-static int hpsa_send_reset(struct ctlr_info *h, unsigned char *scsi3addr,
+static int hpsa_send_reset(struct ctlr_info *h, struct hpsa_scsi_dev_t *dev,
u8 reset_type, int reply_queue)
{
int rc = IO_OK;
struct ErrorInfo *ei;
c = cmd_alloc(h);
-
+ c->device = dev;
/* fill_cmd can't fail here, no data buffer to map. */
- (void) fill_cmd(c, reset_type, h, NULL, 0, 0,
- scsi3addr, TYPE_MSG);
+ (void) fill_cmd(c, reset_type, h, NULL, 0, 0, dev->scsi3addr, TYPE_MSG);
rc = hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT);
if (rc) {
dev_warn(&h->pdev->dev, "Failed to send reset command\n");
}
static int hpsa_do_reset(struct ctlr_info *h, struct hpsa_scsi_dev_t *dev,
- unsigned char *scsi3addr, u8 reset_type, int reply_queue)
+ u8 reset_type, int reply_queue)
{
- int i;
int rc = 0;
/* We can really only handle one reset at a time */
return -EINTR;
}
- BUG_ON(atomic_read(&dev->reset_cmds_out) != 0);
-
- for (i = 0; i < h->nr_cmds; i++) {
- struct CommandList *c = h->cmd_pool + i;
- int refcount = atomic_inc_return(&c->refcount);
-
- if (refcount > 1 && hpsa_cmd_dev_match(h, c, dev, scsi3addr)) {
- unsigned long flags;
-
- /*
- * Mark the target command as having a reset pending,
- * then lock a lock so that the command cannot complete
- * while we're considering it. If the command is not
- * idle then count it; otherwise revoke the event.
- */
- c->reset_pending = dev;
- spin_lock_irqsave(&h->lock, flags); /* Implied MB */
- if (!hpsa_is_cmd_idle(c))
- atomic_inc(&dev->reset_cmds_out);
- else
- c->reset_pending = NULL;
- spin_unlock_irqrestore(&h->lock, flags);
- }
-
- cmd_free(h, c);
- }
-
- rc = hpsa_send_reset(h, scsi3addr, reset_type, reply_queue);
- if (!rc)
+ rc = hpsa_send_reset(h, dev, reset_type, reply_queue);
+ if (!rc) {
+ /* incremented by sending the reset request */
+ atomic_dec(&dev->commands_outstanding);
wait_event(h->event_sync_wait_queue,
- atomic_read(&dev->reset_cmds_out) == 0 ||
+ atomic_read(&dev->commands_outstanding) <= 0 ||
lockup_detected(h));
+ }
if (unlikely(lockup_detected(h))) {
dev_warn(&h->pdev->dev,
rc = -ENODEV;
}
- if (unlikely(rc))
- atomic_set(&dev->reset_cmds_out, 0);
- else
- rc = wait_for_device_to_become_ready(h, scsi3addr, 0);
+ if (!rc)
+ rc = wait_for_device_to_become_ready(h, dev->scsi3addr, 0);
mutex_unlock(&h->reset_mutex);
return rc;
c->phys_disk = dev;
+ if (dev->in_reset)
+ return -1;
+
return hpsa_scsi_ioaccel_queue_command(h, c, dev->ioaccel_handle,
cmd->cmnd, cmd->cmd_len, dev->scsi3addr, dev);
}
} else
cp->sg_count = (u8) use_sg;
+ if (phys_disk->in_reset) {
+ cmd->result = DID_RESET << 16;
+ return -1;
+ }
+
enqueue_cmd_and_start_io(h, c);
return 0;
}
if (!c->scsi_cmd->device->hostdata)
return -1;
+ if (phys_disk->in_reset)
+ return -1;
+
/* Try to honor the device's queue depth */
if (atomic_inc_return(&phys_disk->ioaccel_cmds_out) >
phys_disk->queue_depth) {
if (!dev)
return -1;
+ if (dev->in_reset)
+ return -1;
+
/* check for valid opcode, get LBA and block count */
switch (cmd->cmnd[0]) {
case WRITE_6:
*/
static int hpsa_ciss_submit(struct ctlr_info *h,
struct CommandList *c, struct scsi_cmnd *cmd,
- unsigned char scsi3addr[])
+ struct hpsa_scsi_dev_t *dev)
{
cmd->host_scribble = (unsigned char *) c;
c->cmd_type = CMD_SCSI;
c->scsi_cmd = cmd;
c->Header.ReplyQueue = 0; /* unused in simple mode */
- memcpy(&c->Header.LUN.LunAddrBytes[0], &scsi3addr[0], 8);
+ memcpy(&c->Header.LUN.LunAddrBytes[0], &dev->scsi3addr[0], 8);
c->Header.tag = cpu_to_le64((c->cmdindex << DIRECT_LOOKUP_SHIFT));
/* Fill in the request block... */
hpsa_cmd_resolve_and_free(h, c);
return SCSI_MLQUEUE_HOST_BUSY;
}
+
+ if (dev->in_reset) {
+ hpsa_cmd_resolve_and_free(h, c);
+ return SCSI_MLQUEUE_HOST_BUSY;
+ }
+
enqueue_cmd_and_start_io(h, c);
/* the cmd'll come back via intr handler in complete_scsi_command() */
return 0;
}
static int hpsa_ioaccel_submit(struct ctlr_info *h,
- struct CommandList *c, struct scsi_cmnd *cmd,
- unsigned char *scsi3addr)
+ struct CommandList *c, struct scsi_cmnd *cmd)
{
struct hpsa_scsi_dev_t *dev = cmd->device->hostdata;
int rc = IO_ACCEL_INELIGIBLE;
if (!dev)
return SCSI_MLQUEUE_HOST_BUSY;
+ if (dev->in_reset)
+ return SCSI_MLQUEUE_HOST_BUSY;
+
+ if (hpsa_simple_mode)
+ return IO_ACCEL_INELIGIBLE;
+
cmd->host_scribble = (unsigned char *) c;
if (dev->offload_enabled) {
cmd->result = DID_NO_CONNECT << 16;
return hpsa_cmd_free_and_done(c->h, c, cmd);
}
- if (c->reset_pending)
+
+ if (dev->in_reset) {
+ cmd->result = DID_RESET << 16;
return hpsa_cmd_free_and_done(c->h, c, cmd);
+ }
+
if (c->cmd_type == CMD_IOACCEL2) {
struct ctlr_info *h = c->h;
struct io_accel2_cmd *c2 = &h->ioaccel2_cmd_pool[c->cmdindex];
if (c2->error_data.serv_response ==
IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL) {
- rc = hpsa_ioaccel_submit(h, c, cmd, dev->scsi3addr);
+ rc = hpsa_ioaccel_submit(h, c, cmd);
if (rc == 0)
return;
if (rc == SCSI_MLQUEUE_HOST_BUSY) {
}
}
hpsa_cmd_partial_init(c->h, c->cmdindex, c);
- if (hpsa_ciss_submit(c->h, c, cmd, dev->scsi3addr)) {
+ if (hpsa_ciss_submit(c->h, c, cmd, dev)) {
/*
* If we get here, it means dma mapping failed. Try
* again via scsi mid layer, which will then get
{
struct ctlr_info *h;
struct hpsa_scsi_dev_t *dev;
- unsigned char scsi3addr[8];
struct CommandList *c;
int rc = 0;
return 0;
}
- memcpy(scsi3addr, dev->scsi3addr, sizeof(scsi3addr));
-
if (unlikely(lockup_detected(h))) {
cmd->result = DID_NO_CONNECT << 16;
cmd->scsi_done(cmd);
return 0;
}
+
+ if (dev->in_reset)
+ return SCSI_MLQUEUE_DEVICE_BUSY;
+
c = cmd_tagged_alloc(h, cmd);
+ if (c == NULL)
+ return SCSI_MLQUEUE_DEVICE_BUSY;
/*
* Call alternate submit routine for I/O accelerated commands.
if (likely(cmd->retries == 0 &&
!blk_rq_is_passthrough(cmd->request) &&
h->acciopath_status)) {
- rc = hpsa_ioaccel_submit(h, c, cmd, scsi3addr);
+ rc = hpsa_ioaccel_submit(h, c, cmd);
if (rc == 0)
return 0;
if (rc == SCSI_MLQUEUE_HOST_BUSY) {
return SCSI_MLQUEUE_HOST_BUSY;
}
}
- return hpsa_ciss_submit(h, c, cmd, scsi3addr);
+ return hpsa_ciss_submit(h, c, cmd, dev);
}
static void hpsa_scan_complete(struct ctlr_info *h)
static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd)
{
int rc = SUCCESS;
+ int i;
struct ctlr_info *h;
- struct hpsa_scsi_dev_t *dev;
+ struct hpsa_scsi_dev_t *dev = NULL;
u8 reset_type;
char msg[48];
unsigned long flags;
reset_type == HPSA_DEVICE_RESET_MSG ? "logical " : "physical ");
hpsa_show_dev_msg(KERN_WARNING, h, dev, msg);
+ /*
+ * wait to see if any commands will complete before sending reset
+ */
+ dev->in_reset = true; /* block any new cmds from OS for this device */
+ for (i = 0; i < 10; i++) {
+ if (atomic_read(&dev->commands_outstanding) > 0)
+ msleep(1000);
+ else
+ break;
+ }
+
/* send a reset to the SCSI LUN which the command was sent to */
- rc = hpsa_do_reset(h, dev, dev->scsi3addr, reset_type,
- DEFAULT_REPLY_QUEUE);
+ rc = hpsa_do_reset(h, dev, reset_type, DEFAULT_REPLY_QUEUE);
if (rc == 0)
rc = SUCCESS;
else
return_reset_status:
spin_lock_irqsave(&h->reset_lock, flags);
h->reset_in_progress = 0;
+ if (dev)
+ dev->in_reset = false;
spin_unlock_irqrestore(&h->reset_lock, flags);
return rc;
}
BUG();
}
- atomic_inc(&c->refcount);
if (unlikely(!hpsa_is_cmd_idle(c))) {
/*
* We expect that the SCSI layer will hand us a unique tag
* two requests...because if the selected command isn't idle
* then someone is going to be very disappointed.
*/
- dev_err(&h->pdev->dev,
- "tag collision (tag=%d) in cmd_tagged_alloc().\n",
- idx);
- if (c->scsi_cmd != NULL)
- scsi_print_command(c->scsi_cmd);
- scsi_print_command(scmd);
+ if (idx != h->last_collision_tag) { /* Print once per tag */
+ dev_warn(&h->pdev->dev,
+ "%s: tag collision (tag=%d)\n", __func__, idx);
+ if (c->scsi_cmd != NULL)
+ scsi_print_command(c->scsi_cmd);
+ if (scmd)
+ scsi_print_command(scmd);
+ h->last_collision_tag = idx;
+ }
+ return NULL;
}
+ atomic_inc(&c->refcount);
+
hpsa_cmd_partial_init(h, idx, c);
return c;
}
break; /* it's ours now. */
}
hpsa_cmd_partial_init(h, i, c);
+ c->device = NULL;
return c;
}
}
}
-static void hpsa_send_host_reset(struct ctlr_info *h, unsigned char *scsi3addr,
- u8 reset_type)
+static void hpsa_send_host_reset(struct ctlr_info *h, u8 reset_type)
{
struct CommandList *c;
static void hpsa_free_irqs(struct ctlr_info *h)
{
int i;
+ int irq_vector = 0;
+
+ if (hpsa_simple_mode)
+ irq_vector = h->intr_mode;
if (!h->msix_vectors || h->intr_mode != PERF_MODE_INT) {
/* Single reply queue, only one irq to free */
- free_irq(pci_irq_vector(h->pdev, 0), &h->q[h->intr_mode]);
+ free_irq(pci_irq_vector(h->pdev, irq_vector),
+ &h->q[h->intr_mode]);
h->q[h->intr_mode] = 0;
return;
}
irqreturn_t (*intxhandler)(int, void *))
{
int rc, i;
+ int irq_vector = 0;
+
+ if (hpsa_simple_mode)
+ irq_vector = h->intr_mode;
/*
* initialize h->q[x] = x so that interrupt handlers know which
if (h->msix_vectors > 0 || h->pdev->msi_enabled) {
sprintf(h->intrname[0], "%s-msi%s", h->devname,
h->msix_vectors ? "x" : "");
- rc = request_irq(pci_irq_vector(h->pdev, 0),
+ rc = request_irq(pci_irq_vector(h->pdev, irq_vector),
msixhandler, 0,
h->intrname[0],
&h->q[h->intr_mode]);
} else {
sprintf(h->intrname[h->intr_mode],
"%s-intx", h->devname);
- rc = request_irq(pci_irq_vector(h->pdev, 0),
+ rc = request_irq(pci_irq_vector(h->pdev, irq_vector),
intxhandler, IRQF_SHARED,
h->intrname[0],
&h->q[h->intr_mode]);
}
if (rc) {
dev_err(&h->pdev->dev, "failed to get irq %d for %s\n",
- pci_irq_vector(h->pdev, 0), h->devname);
+ pci_irq_vector(h->pdev, irq_vector), h->devname);
hpsa_free_irqs(h);
return -ENODEV;
}
static int hpsa_kdump_soft_reset(struct ctlr_info *h)
{
int rc;
- hpsa_send_host_reset(h, RAID_CTLR_LUNID, HPSA_RESET_TYPE_CONTROLLER);
+ hpsa_send_host_reset(h, HPSA_RESET_TYPE_CONTROLLER);
dev_info(&h->pdev->dev, "Waiting for board to soft reset.\n");
rc = hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_NOT_READY);
destroy_workqueue(h->rescan_ctlr_wq);
h->rescan_ctlr_wq = NULL;
}
+ if (h->monitor_ctlr_wq) {
+ destroy_workqueue(h->monitor_ctlr_wq);
+ h->monitor_ctlr_wq = NULL;
+ }
+
kfree(h); /* init_one 1 */
}
spin_lock_irqsave(&h->lock, flags);
if (!h->remove_in_progress)
- schedule_delayed_work(&h->event_monitor_work,
- HPSA_EVENT_MONITOR_INTERVAL);
+ queue_delayed_work(h->monitor_ctlr_wq, &h->event_monitor_work,
+ HPSA_EVENT_MONITOR_INTERVAL);
spin_unlock_irqrestore(&h->lock, flags);
}
spin_lock_irqsave(&h->lock, flags);
if (!h->remove_in_progress)
- schedule_delayed_work(&h->monitor_ctlr_work,
+ queue_delayed_work(h->monitor_ctlr_wq, &h->monitor_ctlr_work,
h->heartbeat_sample_interval);
spin_unlock_irqrestore(&h->lock, flags);
}
goto clean7; /* aer/h */
}
+ h->monitor_ctlr_wq = hpsa_create_controller_wq(h, "monitor");
+ if (!h->monitor_ctlr_wq) {
+ rc = -ENOMEM;
+ goto clean7;
+ }
+
/*
* At this point, the controller is ready to take commands.
* Now, if reset_devices and the hard reset didn't work, try
destroy_workqueue(h->rescan_ctlr_wq);
h->rescan_ctlr_wq = NULL;
}
+ if (h->monitor_ctlr_wq) {
+ destroy_workqueue(h->monitor_ctlr_wq);
+ h->monitor_ctlr_wq = NULL;
+ }
kfree(h);
return rc;
}
cancel_delayed_work_sync(&h->event_monitor_work);
destroy_workqueue(h->rescan_ctlr_wq);
destroy_workqueue(h->resubmit_wq);
+ destroy_workqueue(h->monitor_ctlr_wq);
hpsa_delete_sas_host(h);
projects / linux-2.6-microblaze.git / blobdiff