struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len,
u8 *scsi3addr, struct hpsa_scsi_dev_t *phys_disk);
static void hpsa_command_resubmit_worker(struct work_struct *work);
+static u32 lockup_detected(struct ctlr_info *h);
+static int detect_controller_lockup(struct ctlr_info *h);
static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev)
{
* a separate special register for submitting commands.
*/
-/* set_performant_mode: Modify the tag for cciss performant
+/*
+ * set_performant_mode: Modify the tag for cciss performant
* set bit 0 for pull model, bits 3-1 for block fetch
* register number
*/
-static void set_performant_mode(struct ctlr_info *h, struct CommandList *c)
+#define DEFAULT_REPLY_QUEUE (-1)
+static void set_performant_mode(struct ctlr_info *h, struct CommandList *c,
+ int reply_queue)
{
if (likely(h->transMethod & CFGTBL_Trans_Performant)) {
c->busaddr |= 1 | (h->blockFetchTable[c->Header.SGList] << 1);
- if (likely(h->msix_vector > 0))
+ if (unlikely(!h->msix_vector))
+ return;
+ if (likely(reply_queue == DEFAULT_REPLY_QUEUE))
c->Header.ReplyQueue =
raw_smp_processor_id() % h->nreply_queues;
+ else
+ c->Header.ReplyQueue = reply_queue % h->nreply_queues;
}
}
static void set_ioaccel1_performant_mode(struct ctlr_info *h,
- struct CommandList *c)
+ struct CommandList *c,
+ int reply_queue)
{
struct io_accel1_cmd *cp = &h->ioaccel_cmd_pool[c->cmdindex];
- /* Tell the controller to post the reply to the queue for this
+ /*
+ * Tell the controller to post the reply to the queue for this
* processor. This seems to give the best I/O throughput.
*/
- cp->ReplyQueue = smp_processor_id() % h->nreply_queues;
- /* Set the bits in the address sent down to include:
+ if (likely(reply_queue == DEFAULT_REPLY_QUEUE))
+ cp->ReplyQueue = smp_processor_id() % h->nreply_queues;
+ else
+ cp->ReplyQueue = reply_queue % h->nreply_queues;
+ /*
+ * Set the bits in the address sent down to include:
* - performant mode bit (bit 0)
* - pull count (bits 1-3)
* - command type (bits 4-6)
}
static void set_ioaccel2_performant_mode(struct ctlr_info *h,
- struct CommandList *c)
+ struct CommandList *c,
+ int reply_queue)
{
struct io_accel2_cmd *cp = &h->ioaccel2_cmd_pool[c->cmdindex];
- /* Tell the controller to post the reply to the queue for this
+ /*
+ * Tell the controller to post the reply to the queue for this
* processor. This seems to give the best I/O throughput.
*/
- cp->reply_queue = smp_processor_id() % h->nreply_queues;
- /* Set the bits in the address sent down to include:
+ if (likely(reply_queue == DEFAULT_REPLY_QUEUE))
+ cp->reply_queue = smp_processor_id() % h->nreply_queues;
+ else
+ cp->reply_queue = reply_queue % h->nreply_queues;
+ /*
+ * Set the bits in the address sent down to include:
* - performant mode bit not used in ioaccel mode 2
* - pull count (bits 0-3)
* - command type isn't needed for ioaccel2
h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL;
}
-static void enqueue_cmd_and_start_io(struct ctlr_info *h,
- struct CommandList *c)
+static void __enqueue_cmd_and_start_io(struct ctlr_info *h,
+ struct CommandList *c, int reply_queue)
{
dial_down_lockup_detection_during_fw_flash(h, c);
atomic_inc(&h->commands_outstanding);
switch (c->cmd_type) {
case CMD_IOACCEL1:
- set_ioaccel1_performant_mode(h, c);
+ set_ioaccel1_performant_mode(h, c, reply_queue);
writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET);
break;
case CMD_IOACCEL2:
- set_ioaccel2_performant_mode(h, c);
+ set_ioaccel2_performant_mode(h, c, reply_queue);
writel(c->busaddr, h->vaddr + IOACCEL2_INBOUND_POSTQ_32);
break;
default:
- set_performant_mode(h, c);
+ set_performant_mode(h, c, reply_queue);
h->access.submit_command(h, c);
}
}
+static void enqueue_cmd_and_start_io(struct ctlr_info *h,
+ struct CommandList *c)
+{
+ __enqueue_cmd_and_start_io(h, c, DEFAULT_REPLY_QUEUE);
+}
+
static inline int is_hba_lunid(unsigned char scsi3addr[])
{
return memcmp(scsi3addr, RAID_CTLR_LUNID, 8) == 0;
if (cp->cmd_type == CMD_IOACCEL2 || cp->cmd_type == CMD_IOACCEL1)
atomic_dec(&cp->phys_disk->ioaccel_cmds_out);
+ /*
+ * We check for lockup status here as it may be set for
+ * CMD_SCSI, CMD_IOACCEL1 and CMD_IOACCEL2 commands by
+ * fail_all_oustanding_cmds()
+ */
+ if (unlikely(ei->CommandStatus == CMD_CTLR_LOCKUP)) {
+ /* DID_NO_CONNECT will prevent a retry */
+ cmd->result = DID_NO_CONNECT << 16;
+ cmd_free(h, cp);
+ cmd->scsi_done(cmd);
+ return;
+ }
+
if (cp->cmd_type == CMD_IOACCEL2)
return process_ioaccel2_completion(h, cp, cmd, dev);
return 0;
}
-static inline void hpsa_scsi_do_simple_cmd_core(struct ctlr_info *h,
- struct CommandList *c)
+#define NO_TIMEOUT ((unsigned long) -1)
+#define DEFAULT_TIMEOUT 30000 /* milliseconds */
+static int hpsa_scsi_do_simple_cmd_core(struct ctlr_info *h,
+ struct CommandList *c, int reply_queue, unsigned long timeout_msecs)
{
DECLARE_COMPLETION_ONSTACK(wait);
c->waiting = &wait;
- enqueue_cmd_and_start_io(h, c);
- wait_for_completion(&wait);
+ __enqueue_cmd_and_start_io(h, c, reply_queue);
+ if (timeout_msecs == NO_TIMEOUT) {
+ /* TODO: get rid of this no-timeout thing */
+ wait_for_completion_io(&wait);
+ return IO_OK;
+ }
+ if (!wait_for_completion_io_timeout(&wait,
+ msecs_to_jiffies(timeout_msecs))) {
+ dev_warn(&h->pdev->dev, "Command timed out.\n");
+ return -ETIMEDOUT;
+ }
+ return IO_OK;
+}
+
+static int hpsa_scsi_do_simple_cmd(struct ctlr_info *h, struct CommandList *c,
+ int reply_queue, unsigned long timeout_msecs)
+{
+ if (unlikely(lockup_detected(h))) {
+ c->err_info->CommandStatus = CMD_CTLR_LOCKUP;
+ return IO_OK;
+ }
+ return hpsa_scsi_do_simple_cmd_core(h, c, reply_queue, timeout_msecs);
}
static u32 lockup_detected(struct ctlr_info *h)
return rc;
}
-static void hpsa_scsi_do_simple_cmd_core_if_no_lockup(struct ctlr_info *h,
- struct CommandList *c)
-{
- /* If controller lockup detected, fake a hardware error. */
- if (unlikely(lockup_detected(h)))
- c->err_info->CommandStatus = CMD_HARDWARE_ERR;
- else
- hpsa_scsi_do_simple_cmd_core(h, c);
-}
-
#define MAX_DRIVER_CMD_RETRIES 25
-static void hpsa_scsi_do_simple_cmd_with_retry(struct ctlr_info *h,
- struct CommandList *c, int data_direction)
+static int hpsa_scsi_do_simple_cmd_with_retry(struct ctlr_info *h,
+ struct CommandList *c, int data_direction, unsigned long timeout_msecs)
{
int backoff_time = 10, retry_count = 0;
+ int rc;
do {
memset(c->err_info, 0, sizeof(*c->err_info));
- hpsa_scsi_do_simple_cmd_core(h, c);
+ rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE,
+ timeout_msecs);
+ if (rc)
+ break;
retry_count++;
if (retry_count > 3) {
msleep(backoff_time);
check_for_busy(h, c)) &&
retry_count <= MAX_DRIVER_CMD_RETRIES);
hpsa_pci_unmap(h->pdev, c, 1, data_direction);
+ if (retry_count > MAX_DRIVER_CMD_RETRIES)
+ rc = -EIO;
+ return rc;
}
static void hpsa_print_cmd(struct ctlr_info *h, char *txt,
case CMD_UNABORTABLE:
hpsa_print_cmd(h, "unabortable", cp);
break;
+ case CMD_CTLR_LOCKUP:
+ hpsa_print_cmd(h, "controller lockup detected", cp);
+ break;
default:
hpsa_print_cmd(h, "unknown status", cp);
dev_warn(d, "Unknown command status %x\n",
rc = -1;
goto out;
}
- hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
+ rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
+ PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ if (rc)
+ goto out;
ei = c->err_info;
if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
hpsa_scsi_interpret_error(h, c);
rc = -1;
goto out;
}
- hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
+ rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
+ PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ if (rc)
+ goto out;
ei = c->err_info;
if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
hpsa_scsi_interpret_error(h, c);
}
static int hpsa_send_reset(struct ctlr_info *h, unsigned char *scsi3addr,
- u8 reset_type)
+ u8 reset_type, int reply_queue)
{
int rc = IO_OK;
struct CommandList *c;
(void) fill_cmd(c, HPSA_DEVICE_RESET_MSG, h, NULL, 0, 0,
scsi3addr, TYPE_MSG);
c->Request.CDB[1] = reset_type; /* fill_cmd defaults to LUN reset */
- hpsa_scsi_do_simple_cmd_core(h, c);
+ 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");
+ goto out;
+ }
/* no unmap needed here because no data xfer. */
ei = c->err_info;
hpsa_scsi_interpret_error(h, c);
rc = -1;
}
+out:
cmd_free(h, c);
return rc;
}
sizeof(this_device->raid_map), 0,
scsi3addr, TYPE_CMD)) {
dev_warn(&h->pdev->dev, "Out of memory in hpsa_get_raid_map()\n");
- cmd_free(h, c);
- return -ENOMEM;
+ rc = -ENOMEM;
+ goto out;
}
- hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
+ rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
+ PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ if (rc)
+ goto out;
ei = c->err_info;
if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
hpsa_scsi_interpret_error(h, c);
- cmd_free(h, c);
- return -1;
+ rc = -1;
+ goto out;
}
cmd_free(h, c);
}
hpsa_debug_map_buff(h, rc, &this_device->raid_map);
return rc;
+out:
+ cmd_free(h, c);
+ return rc;
}
static int hpsa_bmic_id_physical_device(struct ctlr_info *h,
c->Request.CDB[2] = bmic_device_index & 0xff;
c->Request.CDB[9] = (bmic_device_index >> 8) & 0xff;
- hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
+ hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE,
+ NO_TIMEOUT);
ei = c->err_info;
if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
hpsa_scsi_interpret_error(h, c);
}
if (extended_response)
c->Request.CDB[1] = extended_response;
- hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE);
+ rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
+ PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ if (rc)
+ goto out;
ei = c->err_info;
if (ei->CommandStatus != 0 &&
ei->CommandStatus != CMD_DATA_UNDERRUN) {
{
struct CommandList *c;
unsigned char *sense, sense_key, asc, ascq;
- int ldstat = 0;
+ int rc, ldstat = 0;
u16 cmd_status;
u8 scsi_status;
#define ASC_LUN_NOT_READY 0x04
if (!c)
return 0;
(void) fill_cmd(c, TEST_UNIT_READY, h, NULL, 0, 0, scsi3addr, TYPE_CMD);
- hpsa_scsi_do_simple_cmd_core(h, c);
+ rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT);
+ if (rc) {
+ cmd_free(h, c);
+ return 0;
+ }
sense = c->err_info->SenseInfo;
sense_key = sense[2];
asc = sense[12];
dev->phys_disk[map_index]);
}
-/* Submit commands down the "normal" RAID stack path */
+/*
+ * Submit commands down the "normal" RAID stack path
+ * All callers to hpsa_ciss_submit must check lockup_detected
+ * beforehand, before (opt.) and after calling cmd_alloc
+ */
static int hpsa_ciss_submit(struct ctlr_info *h,
struct CommandList *c, struct scsi_cmnd *cmd,
unsigned char scsi3addr[])
memcpy(scsi3addr, dev->scsi3addr, sizeof(scsi3addr));
if (unlikely(lockup_detected(h))) {
- cmd->result = DID_ERROR << 16;
+ cmd->result = DID_NO_CONNECT << 16;
cmd->scsi_done(cmd);
return 0;
}
return SCSI_MLQUEUE_HOST_BUSY;
}
if (unlikely(lockup_detected(h))) {
- cmd->result = DID_ERROR << 16;
+ cmd->result = DID_NO_CONNECT << 16;
cmd_free(h, c);
cmd->scsi_done(cmd);
return 0;
/* Send the Test Unit Ready, fill_cmd can't fail, no mapping */
(void) fill_cmd(c, TEST_UNIT_READY, h,
NULL, 0, 0, lunaddr, TYPE_CMD);
- hpsa_scsi_do_simple_cmd_core(h, c);
+ rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE,
+ NO_TIMEOUT);
+ if (rc)
+ goto do_it_again;
/* no unmap needed here because no data xfer. */
if (c->err_info->CommandStatus == CMD_SUCCESS)
(c->err_info->SenseInfo[2] == NO_SENSE ||
c->err_info->SenseInfo[2] == UNIT_ATTENTION))
break;
-
+do_it_again:
dev_warn(&h->pdev->dev, "waiting %d secs "
"for device to become ready.\n", waittime);
rc = 1; /* device not ready. */
"device lookup failed.\n");
return FAILED;
}
- dev_warn(&h->pdev->dev, "resetting device %d:%d:%d:%d\n",
- h->scsi_host->host_no, dev->bus, dev->target, dev->lun);
+
+ /* if controller locked up, we can guarantee command won't complete */
+ if (lockup_detected(h)) {
+ dev_warn(&h->pdev->dev,
+ "scsi %d:%d:%d:%d RESET FAILED, lockup detected\n",
+ h->scsi_host->host_no, dev->bus, dev->target,
+ dev->lun);
+ return FAILED;
+ }
+
+ /* this reset request might be the result of a lockup; check */
+ if (detect_controller_lockup(h)) {
+ dev_warn(&h->pdev->dev,
+ "scsi %d:%d:%d:%d RESET FAILED, new lockup detected\n",
+ h->scsi_host->host_no, dev->bus, dev->target,
+ dev->lun);
+ return FAILED;
+ }
+
+ hpsa_show_dev_msg(KERN_WARNING, h, dev, "resetting");
+
/* send a reset to the SCSI LUN which the command was sent to */
- rc = hpsa_send_reset(h, dev->scsi3addr, HPSA_RESET_TYPE_LUN);
+ rc = hpsa_send_reset(h, dev->scsi3addr, HPSA_RESET_TYPE_LUN,
+ DEFAULT_REPLY_QUEUE);
if (rc == 0 && wait_for_device_to_become_ready(h, dev->scsi3addr) == 0)
return SUCCESS;
+ dev_warn(&h->pdev->dev,
+ "scsi %d:%d:%d:%d reset failed\n",
+ h->scsi_host->host_no, dev->bus, dev->target, dev->lun);
return FAILED;
}
}
static int hpsa_send_abort(struct ctlr_info *h, unsigned char *scsi3addr,
- struct CommandList *abort, int swizzle)
+ struct CommandList *abort, int swizzle, int reply_queue)
{
int rc = IO_OK;
struct CommandList *c;
0, 0, scsi3addr, TYPE_MSG);
if (swizzle)
swizzle_abort_tag(&c->Request.CDB[4]);
- hpsa_scsi_do_simple_cmd_core(h, c);
+ (void) hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT);
hpsa_get_tag(h, abort, &taglower, &tagupper);
- dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: do_simple_cmd_core completed.\n",
+ dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: do_simple_cmd(abort) completed.\n",
__func__, tagupper, taglower);
/* no unmap needed here because no data xfer. */
*/
static int hpsa_send_reset_as_abort_ioaccel2(struct ctlr_info *h,
- unsigned char *scsi3addr, struct CommandList *abort)
+ unsigned char *scsi3addr, struct CommandList *abort, int reply_queue)
{
int rc = IO_OK;
struct scsi_cmnd *scmd; /* scsi command within request being aborted */
"Reset as abort: Resetting physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
psa[0], psa[1], psa[2], psa[3],
psa[4], psa[5], psa[6], psa[7]);
- rc = hpsa_send_reset(h, psa, HPSA_RESET_TYPE_TARGET);
+ rc = hpsa_send_reset(h, psa, HPSA_RESET_TYPE_TARGET, reply_queue);
if (rc != 0) {
dev_warn(&h->pdev->dev,
"Reset as abort: Failed on physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
* make this true someday become false.
*/
static int hpsa_send_abort_both_ways(struct ctlr_info *h,
- unsigned char *scsi3addr, struct CommandList *abort)
+ unsigned char *scsi3addr, struct CommandList *abort, int reply_queue)
{
/* ioccelerator mode 2 commands should be aborted via the
* accelerated path, since RAID path is unaware of these commands,
* Change abort to physical device reset.
*/
if (abort->cmd_type == CMD_IOACCEL2)
- return hpsa_send_reset_as_abort_ioaccel2(h, scsi3addr, abort);
+ return hpsa_send_reset_as_abort_ioaccel2(h, scsi3addr,
+ abort, reply_queue);
+
+ return hpsa_send_abort(h, scsi3addr, abort, 0, reply_queue) &&
+ hpsa_send_abort(h, scsi3addr, abort, 1, reply_queue);
+}
- return hpsa_send_abort(h, scsi3addr, abort, 0) &&
- hpsa_send_abort(h, scsi3addr, abort, 1);
+/* Find out which reply queue a command was meant to return on */
+static int hpsa_extract_reply_queue(struct ctlr_info *h,
+ struct CommandList *c)
+{
+ if (c->cmd_type == CMD_IOACCEL2)
+ return h->ioaccel2_cmd_pool[c->cmdindex].reply_queue;
+ return c->Header.ReplyQueue;
}
/* Send an abort for the specified command.
char msg[256]; /* For debug messaging. */
int ml = 0;
__le32 tagupper, taglower;
- int refcount;
+ int refcount, reply_queue;
+
+ if (sc == NULL)
+ return FAILED;
/* Find the controller of the command to be aborted */
h = sdev_to_hba(sc->device);
"ABORT REQUEST FAILED, Controller lookup failed.\n"))
return FAILED;
- if (lockup_detected(h))
+ /* Find the device of the command to be aborted */
+ dev = sc->device->hostdata;
+ if (!dev) {
+ dev_err(&h->pdev->dev, "%s FAILED, Device lookup failed.\n",
+ msg);
return FAILED;
+ }
+
+ /* If controller locked up, we can guarantee command won't complete */
+ if (lockup_detected(h)) {
+ hpsa_show_dev_msg(KERN_WARNING, h, dev,
+ "ABORT FAILED, lockup detected");
+ return FAILED;
+ }
+
+ /* This is a good time to check if controller lockup has occurred */
+ if (detect_controller_lockup(h)) {
+ hpsa_show_dev_msg(KERN_WARNING, h, dev,
+ "ABORT FAILED, new lockup detected");
+ return FAILED;
+ }
/* Check that controller supports some kind of task abort */
if (!(HPSATMF_PHYS_TASK_ABORT & h->TMFSupportFlags) &&
sc->device->id, sc->device->lun,
"Aborting command");
- /* Find the device of the command to be aborted */
- dev = sc->device->hostdata;
- if (!dev) {
- dev_err(&h->pdev->dev, "%s FAILED, Device lookup failed.\n",
- msg);
- return FAILED;
- }
-
/* Get SCSI command to be aborted */
abort = (struct CommandList *) sc->host_scribble;
if (abort == NULL) {
return SUCCESS;
}
hpsa_get_tag(h, abort, &taglower, &tagupper);
+ reply_queue = hpsa_extract_reply_queue(h, abort);
ml += sprintf(msg+ml, "Tag:0x%08x:%08x ", tagupper, taglower);
as = abort->scsi_cmd;
if (as != NULL)
* by the firmware (but not to the scsi mid layer) but we can't
* distinguish which. Send the abort down.
*/
- rc = hpsa_send_abort_both_ways(h, dev->scsi3addr, abort);
+ rc = hpsa_send_abort_both_ways(h, dev->scsi3addr, abort, reply_queue);
if (rc != 0) {
hpsa_show_dev_msg(KERN_WARNING, h, dev,
"FAILED to abort command");
c->SG[0].Len = cpu_to_le32(iocommand.buf_size);
c->SG[0].Ext = cpu_to_le32(HPSA_SG_LAST); /* not chaining */
}
- hpsa_scsi_do_simple_cmd_core_if_no_lockup(h, c);
+ rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT);
if (iocommand.buf_size > 0)
hpsa_pci_unmap(h->pdev, c, 1, PCI_DMA_BIDIRECTIONAL);
check_ioctl_unit_attention(h, c);
+ if (rc) {
+ rc = -EIO;
+ goto out;
+ }
/* Copy the error information out */
memcpy(&iocommand.error_info, c->err_info,
}
c->SG[--i].Ext = cpu_to_le32(HPSA_SG_LAST);
}
- hpsa_scsi_do_simple_cmd_core_if_no_lockup(h, c);
+ status = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT);
if (sg_used)
hpsa_pci_unmap(h->pdev, c, sg_used, PCI_DMA_BIDIRECTIONAL);
check_ioctl_unit_attention(h, c);
+ if (status) {
+ status = -EIO;
+ goto cleanup0;
+ }
+
/* Copy the error information out */
memcpy(&ioc->error_info, c->err_info, sizeof(ioc->error_info));
if (copy_to_user(argp, ioc, sizeof(*ioc))) {
* as we enter this code.)
*/
for (i = 0; i < MAX_MODE_CHANGE_WAIT; i++) {
+ if (h->remove_in_progress)
+ goto done;
spin_lock_irqsave(&h->lock, flags);
doorbell_value = readl(h->vaddr + SA5_DOORBELL);
spin_unlock_irqrestore(&h->lock, flags);
{
int i, refcount;
struct CommandList *c;
+ int failcount = 0;
flush_workqueue(h->resubmit_wq); /* ensure all cmds are fully built */
for (i = 0; i < h->nr_cmds; i++) {
c = h->cmd_pool + i;
refcount = atomic_inc_return(&c->refcount);
if (refcount > 1) {
- c->err_info->CommandStatus = CMD_HARDWARE_ERR;
+ c->err_info->CommandStatus = CMD_CTLR_LOCKUP;
finish_cmd(c);
+ failcount++;
}
cmd_free(h, c);
}
+ dev_warn(&h->pdev->dev,
+ "failed %d commands in fail_all\n", failcount);
}
static void set_lockup_detected_for_all_cpus(struct ctlr_info *h, u32 value)
if (!lockup_detected) {
/* no heartbeat, but controller gave us a zero. */
dev_warn(&h->pdev->dev,
- "lockup detected but scratchpad register is zero\n");
+ "lockup detected after %d but scratchpad register is zero\n",
+ h->heartbeat_sample_interval / HZ);
lockup_detected = 0xffffffff;
}
set_lockup_detected_for_all_cpus(h, lockup_detected);
spin_unlock_irqrestore(&h->lock, flags);
- dev_warn(&h->pdev->dev, "Controller lockup detected: 0x%08x\n",
- lockup_detected);
+ dev_warn(&h->pdev->dev, "Controller lockup detected: 0x%08x after %d\n",
+ lockup_detected, h->heartbeat_sample_interval / HZ);
pci_disable_device(h->pdev);
fail_all_outstanding_cmds(h);
}
-static void detect_controller_lockup(struct ctlr_info *h)
+static int detect_controller_lockup(struct ctlr_info *h)
{
u64 now;
u32 heartbeat;
/* If we've received an interrupt recently, we're ok. */
if (time_after64(h->last_intr_timestamp +
(h->heartbeat_sample_interval), now))
- return;
+ return false;
/*
* If we've already checked the heartbeat recently, we're ok.
*/
if (time_after64(h->last_heartbeat_timestamp +
(h->heartbeat_sample_interval), now))
- return;
+ return false;
/* If heartbeat has not changed since we last looked, we're not ok. */
spin_lock_irqsave(&h->lock, flags);
spin_unlock_irqrestore(&h->lock, flags);
if (h->last_heartbeat == heartbeat) {
controller_lockup_detected(h);
- return;
+ return true;
}
/* We're ok. */
h->last_heartbeat = heartbeat;
h->last_heartbeat_timestamp = now;
+ return false;
}
static void hpsa_ack_ctlr_events(struct ctlr_info *h)
{
char *flush_buf;
struct CommandList *c;
+ int rc;
/* Don't bother trying to flush the cache if locked up */
+ /* FIXME not necessary if do_simple_cmd does the check */
if (unlikely(lockup_detected(h)))
return;
flush_buf = kzalloc(4, GFP_KERNEL);
RAID_CTLR_LUNID, TYPE_CMD)) {
goto out;
}
- hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_TODEVICE);
+ rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
+ PCI_DMA_TODEVICE, NO_TIMEOUT);
+ if (rc)
+ goto out;
if (c->err_info->CommandStatus != 0)
out:
dev_warn(&h->pdev->dev,
projects / GitHub / LineageOS / G12 / android_kernel_amlogic_linux-4.9.git / commitdiff