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| author |   John Garry <john.garry@huawei.com> | 2017-01-03 20:24:48 +0800 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2017-01-05 18:24:11 -0500 |
| commit | d177c408113e5d8b664b2ae34e5cd7b27c686a12 (patch) | |
| tree | 82a3ab3a35cde4275e2c2f251969c9e0553331f8 /drivers/scsi/hisi_sas/hisi_sas.h | |
| parent | scsi: ufs-qcom: Fix module autoload (diff) | |
| download | linux-dev-d177c408113e5d8b664b2ae34e5cd7b27c686a12.tar.xz linux-dev-d177c408113e5d8b664b2ae34e5cd7b27c686a12.zip | |
scsi: hisi_sas: service v2 hw CQ ISR with tasklet
Currently the all the slot processing for the completion queue is done
in ISR context. It is judged that the slot processing can take a long
time, especially when a SATA NCQ completes (upto 32 slots).
So, as a solution, defer the bulk of the ISR processing to tasklet
context. Each CQ will have its down tasklet.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Xiang Chen <chenxiang66@hisilicon.com>
Reviewed-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
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 c0cd505a9ef7..9216deaa3ff5 100644 --- a/drivers/scsi/hisi_sas/hisi_sas.h +++ b/drivers/scsi/hisi_sas/hisi_sas.h @@ -95,6 +95,7 @@ struct hisi_sas_port { struct hisi_sas_cq { struct hisi_hba *hisi_hba; + struct tasklet_struct tasklet; int rd_point; int id; }; |