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scsi: lpfc: Fix SLI3 hba in loop mode not discovering devices 

When operating in private loop mode, PLOGI exchanges are racing and the
driver tries to abort it's PLOGI. But the PLOGI abort ends up terminating
the login with the other end causing the other end to abort its PLOGI as
well. Discovery never fully completes.

Fix by disabling the PLOGI abort when private loop and letting the state
machine play out.

Link: https://lore.kernel.org/r/20191018211832.7917-5-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
James Smart 2019-10-18 14:18:20 -07:00 committed by Martin K. Petersen
parent 27f3efd637
commit feff8b3d84
1 changed files with 3 additions and 1 deletions
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4
drivers/scsi/lpfc/lpfc_nportdisc.c
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@ -542,8 +542,10 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
* single discovery thread, this will cause a huge delay in
* discovery. Also this will cause multiple state machines
* running in parallel for this node.
* This only applies to a fabric environment.
*/
if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) &&
(vport->fc_flag & FC_FABRIC)) {
/* software abort outstanding PLOGI */
lpfc_els_abort(phba, ndlp);
}