diff options
| author | Deepak Ukey <deepak.ukey@microchip.com> | 2018-09-11 11:48:04 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-20 19:59:56 +0300 |
| commit | d36d5fbfe15cdc0c553e924dad53f14a6b3de77f (patch) | |
| tree | a3ffe37ca05af284e27447dad63eb1512bf19424 /drivers/scsi/pm8001/pm8001_sas.c | |
| parent | f84f69da3610b57a5f3720f8ca6943761203dfa9 (diff) | |
| download | linux-d36d5fbfe15cdc0c553e924dad53f14a6b3de77f.tar.xz | |
scsi: pm80xx: Fixed system hang issue during kexec boot
[ Upstream commit 72349b62a571effd6faadd0600b8e657dd87afbf ]
When the firmware is not responding, execution of kexec boot causes a system
hang. When firmware assertion happened, driver get notified with interrupt
vector updated in MPI configuration table. Then, the driver will read
scratchpad register and set controller_fatal_error flag to true.
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Acked-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/scsi/pm8001/pm8001_sas.c')
| -rw-r--r-- | drivers/scsi/pm8001/pm8001_sas.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c index d1fcd21f7f7d..e64a13f0bce1 100644 --- a/drivers/scsi/pm8001/pm8001_sas.c +++ b/drivers/scsi/pm8001/pm8001_sas.c @@ -374,6 +374,13 @@ static int pm8001_task_exec(struct sas_task *task, return 0; } pm8001_ha = pm8001_find_ha_by_dev(task->dev); + if (pm8001_ha->controller_fatal_error) { + struct task_status_struct *ts = &t->task_status; + + ts->resp = SAS_TASK_UNDELIVERED; + t->task_done(t); + return 0; + } PM8001_IO_DBG(pm8001_ha, pm8001_printk("pm8001_task_exec device \n ")); spin_lock_irqsave(&pm8001_ha->lock, flags); do { |