diff options
| author |   Xiang Chen <chenxiang66@hisilicon.com> | 2017-08-11 00:09:33 +0800 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2017-08-10 20:15:02 -0400 |
| commit | 640acc9a9693e729b7936fb4801f2dd59041a141 (patch) | |
| tree | cfbee1d10870e757621ca7ff2e7eecb3c301ddcf /drivers/scsi/hisi_sas/hisi_sas.h | |
| parent | scsi: hisi_sas: add irq and tasklet cleanup in v2 hw (diff) | |
| download | linux-dev-640acc9a9693e729b7936fb4801f2dd59041a141.tar.xz linux-dev-640acc9a9693e729b7936fb4801f2dd59041a141.zip | |
scsi: hisi_sas: service interrupt ITCT_CLR interrupt in v2 hw
This patch is a fix related to freeing a device in v2 hw driver.
Before, we polled to ITCT CLR interrupt to check if a device is free.
This was error prone, as if the interrupt doesn't occur in 10us, we miss
processing it.
To avoid this situation, service this interrupt and sync the event with
a completion.
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hisi_sas/hisi_sas.h')
| -rw-r--r-- | drivers/scsi/hisi_sas/hisi_sas.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h index ad6b2d18047b..23a22dcba154 100644 --- a/drivers/scsi/hisi_sas/hisi_sas.h +++ b/drivers/scsi/hisi_sas/hisi_sas.h @@ -141,6 +141,7 @@ struct hisi_sas_dq { struct hisi_sas_device { struct hisi_hba *hisi_hba; struct domain_device *sas_device; + struct completion *completion; struct hisi_sas_dq *dq; struct list_head list; u64 attached_phy; |