diff options
| author | Kevin Barnett <kevin.barnett@hpe.com> | 2017-05-03 18:53:24 -0500 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-06-12 20:48:02 -0400 |
| commit | 1f37e992ad8015ce33596466b0f36babb495148e (patch) | |
| tree | c4f3a3838220ebd60faeac9fe78c7fbf434e4688 /drivers/scsi/smartpqi | |
| parent | e1d213bdc3e359c6c5da8ebbc5b2e87b376e8777 (diff) | |
| download | linux-1f37e992ad8015ce33596466b0f36babb495148e.tar.bz2 | |
scsi: smartpqi: add pqi_wait_for_completion_io
Add check for controller lockup during waits for synchronous
controller commands.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/smartpqi')
| -rw-r--r-- | drivers/scsi/smartpqi/smartpqi_init.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 6f31cd96e521..586a1d51e369 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -3578,6 +3578,37 @@ static void pqi_start_io(struct pqi_ctrl_info *ctrl_info, spin_unlock_irqrestore(&queue_group->submit_lock[path], flags); } +#define PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS 10 + +static int pqi_wait_for_completion_io(struct pqi_ctrl_info *ctrl_info, + struct completion *wait) +{ + int rc; + unsigned int wait_secs = 0; + + while (1) { + if (wait_for_completion_io_timeout(wait, + PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS * HZ)) { + rc = 0; + break; + } + + pqi_check_ctrl_health(ctrl_info); + if (pqi_ctrl_offline(ctrl_info)) { + rc = -ENXIO; + break; + } + + wait_secs += PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS; + + dev_err(&ctrl_info->pci_dev->dev, + "waiting %u seconds for completion\n", + wait_secs); + } + + return rc; +} + static void pqi_raid_synchronous_complete(struct pqi_io_request *io_request, void *context) { @@ -3601,7 +3632,7 @@ static int pqi_submit_raid_request_synchronous_with_io_request( io_request); if (timeout_msecs == NO_TIMEOUT) { - wait_for_completion_io(&wait); + pqi_wait_for_completion_io(ctrl_info, &wait); } else { if (!wait_for_completion_io_timeout(&wait, msecs_to_jiffies(timeout_msecs))) { |