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scsi: qla2xxx: Fix N2N link re-connect

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In case of N2N connect, sg_reset for bus/device/host was causing driver and
firmware state to go out of sync.  This patch fixes this link instablity
when reconnect is attempted after link flap.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Quinn Tran
2018-08-02 13:16:44 -07:00
committed by Martin K. Petersen
parent 4ae5716b41
commit 48acad0990
7 changed files with 182 additions and 109 deletions
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5
drivers/scsi/qla2xxx/qla_os.c
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@@ -6186,6 +6186,11 @@ intr_on_check:
if (!IS_QLAFX00(ha))
qla2x00_do_dpc_all_vps(base_vha);
if (test_and_clear_bit(N2N_LINK_RESET,
&base_vha->dpc_flags)) {
qla2x00_lip_reset(base_vha);
}
ha->dpc_active = 0;
end_loop:
set_current_state(TASK_INTERRUPTIBLE);