From: Rob Evers <revers@redhat.com>
Date: Mon, 4 Jan 2010 22:52:53 -0500
Subject: [scsi] lpfc: Fix Dead FCF not triggering discovery others
Message-id: <20100104225300.24386.43759.sendpatchset@localhost.localdomain>
Patchwork-id: 22308
O-Subject: [RHEL5.5 PATCH 16/18] Fix Dead FCF not triggering discovery of other
	FCF.
Bugzilla: 549763
RH-Acked-by: Tomas Henzl <thenzl@redhat.com>
RH-Acked-by: Mike Christie <mchristi@redhat.com>

https://bugzilla.redhat.com/show_bug.cgi?id=549763

Fix Dead FCF not triggering discovery of other FCF.

Signed-off-by: Jarod Wilson <jarod@redhat.com>

diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 92f6aa8..9793f71 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -3103,6 +3103,7 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
 	struct lpfc_vport *vport;
 	struct lpfc_nodelist *ndlp;
 	struct Scsi_Host  *shost;
+	uint32_t link_state;
 
 	phba->fc_eventTag = acqe_fcoe->event_tag;
 	phba->fcoe_eventtag = acqe_fcoe->event_tag;
@@ -3149,9 +3150,12 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
 			break;
 		/*
 		 * Currently, driver support only one FCF - so treat this as
-		 * a link down.
+		 * a link down, but save the link state because we don't want
+		 * it to be changed to Link Down unless it is already down.
 		 */
+		link_state = phba->link_state;
 		lpfc_linkdown(phba);
+		phba->link_state = link_state;
 		/* Unregister FCF if no devices connected to it */
 		lpfc_unregister_unused_fcf(phba);
 		break;