scsi: hisi_sas: handle PHY UP+DOWN simultaneous irq

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Handle the situation that PHY UP and DOWN irq happen simultaneously.
There is no mechanism of SoC HW to ensure this situation will never
happen. So, we add this handle just in case.

Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Xiaofei Tan 2017-03-23 01:25:33 +08:00 • committed by Martin K. Petersen

parent f1dc751876

commit 981843c6c4

1 changed files with 39 additions and 17 deletions

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drivers/scsi/hisi_sas/hisi_sas_v2_hw.c

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