scsi: hisi_sas: do link reset for some CHL_INT2 ints

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We should do link reset of PHY when identify timeout or STP link timeout. They
are internal events of SOC and are notified to driver through interrupts of
CHL_INT2.

Besides, we should add an delay work to do link reset as it needs sleep. So,
this patch add an new PHY event HISI_PHYE_LINK_RESET for this.

Notes: v2 HW doesn't report the event of STP link timeout.  So, we only need
to handle event of identify timeout for v2 HW.

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 2017-12-09 01:16:45 +08:00 • committed by Martin K. Petersen

parent e537b62b07

commit 057c3d1f07

4 changed files with 54 additions and 6 deletions

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1

drivers/scsi/hisi_sas/hisi_sas.h

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12

drivers/scsi/hisi_sas/hisi_sas_main.c

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18

drivers/scsi/hisi_sas/hisi_sas_v2_hw.c

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29

drivers/scsi/hisi_sas/hisi_sas_v3_hw.c

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