linux-kernel - [PATCH 4.4 09/16] lpfc: Fix Device discovery failures during switch reboot test.

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Date:   Thu, 31 Aug 2017 17:44:02 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dick Kennedy <dick.kennedy@...gotech.com>,
        James Smart <james.smart@...gotech.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        "Guilherme G. Piccoli" <gpiccoli@...ux.vnet.ibm.com>
Subject: [PATCH 4.4 09/16] lpfc: Fix Device discovery failures during switch reboot test.

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: James Smart <james.smart@...adcom.com>

commit 342b59caa66240b670285d519fdfe2c44289b516 upstream.

When the switch is rebooted, the lpfc driver fails to log
into the fabric, and Unexpected timeout message is seen.

Fix: Do not issue RegVFI if the FLOGI was internally aborted.

Signed-off-by: Dick Kennedy <dick.kennedy@...gotech.com>
Signed-off-by: James Smart <james.smart@...gotech.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@...ux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/scsi/lpfc/lpfc_els.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -1054,7 +1054,10 @@ stop_rr_fcf_flogi:
 					lpfc_sli4_unreg_all_rpis(vport);
 				}
 			}
-			lpfc_issue_reg_vfi(vport);
+
+			/* Do not register VFI if the driver aborted FLOGI */
+			if (!lpfc_error_lost_link(irsp))
+				lpfc_issue_reg_vfi(vport);
 			lpfc_nlp_put(ndlp);
 			goto out;
 		}