scsi: hisi_sas: Add poll support for v3 hw

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Add a module parameter to set how many queues are used for iopoll. Also
fill the interface mq_poll. For internal I/Os from libsas and libata we use
non-iopoll queue (queue 0) to deliver and complete them. But for internal
abort I/Os, just don't send them for poll queues.

There is still a risk associated as this sends internal abort commands to
non-iopoll queues which actually requires sending an internal abort command
to every queue. As a result, make the module parameter as "experimental"
for now.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Link: https://lore.kernel.org/r/1678169355-76215-3-git-send-email-chenxiang66@hisilicon.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Xiang Chen 2023-03-07 14:09:13 +08:00 • committed by Martin K. Petersen

parent 538a604689

commit 0e47effa77

3 changed files with 82 additions and 10 deletions

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3

drivers/scsi/hisi_sas/hisi_sas.h

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18

drivers/scsi/hisi_sas/hisi_sas_main.c

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71

drivers/scsi/hisi_sas/hisi_sas_v3_hw.c

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