[PATCH AUTOSEL for 4.4 15/32] scsi: lpfc: Fix crash during Hardware error recovery on SLI3 adapters

From: alexander . levin
Date: Wed Nov 29 2017 - 12:31:45 EST


From: James Smart <jsmart2021@xxxxxxxxx>

[ Upstream commit 5d181531bc6169e19a02a27d202cf0e982db9d0e ]

if REG_VPI fails, the driver was incorrectly issuing INIT_VFI
(a SLI4 command) on a SLI3 adapter.

Signed-off-by: Dick Kennedy <dick.kennedy@xxxxxxxxxxxx>
Signed-off-by: James Smart <james.smart@xxxxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
---
drivers/scsi/lpfc/lpfc_els.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index d278362448ca..fc8f9b446556 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -7887,11 +7887,17 @@ lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
spin_unlock_irq(shost->host_lock);
- if (vport->port_type == LPFC_PHYSICAL_PORT
- && !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
- lpfc_issue_init_vfi(vport);
- else
+ if (mb->mbxStatus == MBX_NOT_FINISHED)
+ break;
+ if ((vport->port_type == LPFC_PHYSICAL_PORT) &&
+ !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) {
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ lpfc_issue_init_vfi(vport);
+ else
+ lpfc_initial_flogi(vport);
+ } else {
lpfc_initial_fdisc(vport);
+ }
break;
}
} else {
--
2.11.0