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| author | James Smart <jsmart2021@gmail.com> | 2021-03-01 09:18:11 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-03-04 17:37:04 -0500 |
| commit | 9dd83f75fc8c2403508d4dbe4b9ebde15ee0bbab (patch) | |
| tree | cfbd5fe1666c52bc216a1664525f6ea4e45970b5 /drivers/scsi/lpfc/lpfc_nportdisc.c | |
| parent | 148bc64d38fe314475a074c4f757ec9d84537d1c (diff) | |
| download | linux-9dd83f75fc8c2403508d4dbe4b9ebde15ee0bbab.tar.gz linux-9dd83f75fc8c2403508d4dbe4b9ebde15ee0bbab.tar.bz2 linux-9dd83f75fc8c2403508d4dbe4b9ebde15ee0bbab.zip | |
scsi: lpfc: Fix dropped FLOGI during pt2pt discovery recovery
When connected in pt2pt mode, there is a scenario where the remote port
significantly delays sending a response to our FLOGI, but acts on the FLOGI
it sent us and proceeds to PLOGI/PRLI. The FLOGI ends up timing out and
kicks off recovery logic. End result is a lot of unnecessary state changes
and lots of discovery messages being logged.
Fix by terminating the FLOGI and noop'ing its completion if we have already
accepted the remote ports FLOGI and are now processing PLOGI.
Link: https://lore.kernel.org/r/20210301171821.3427-13-jsmart2021@gmail.com
Co-developed-by: Dick Kennedy <dick.kennedy@broadcom.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>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_nportdisc.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_nportdisc.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c index 4918423960d6..57e4aef8a9a3 100644 --- a/drivers/scsi/lpfc/lpfc_nportdisc.c +++ b/drivers/scsi/lpfc/lpfc_nportdisc.c @@ -523,6 +523,16 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, /* rcv'ed PLOGI decides what our NPortId will be */ vport->fc_myDID = icmd->un.rcvels.parmRo; + /* If there is an outstanding FLOGI, abort it now. + * The remote NPort is not going to ACC our FLOGI + * if its already issuing a PLOGI for pt2pt mode. + * This indicates our FLOGI was dropped; however, we + * must have ACCed the remote NPorts FLOGI to us + * to make it here. + */ + if (phba->hba_flag & HBA_FLOGI_OUTSTANDING) + lpfc_els_abort_flogi(phba); + ed_tov = be32_to_cpu(sp->cmn.e_d_tov); if (sp->cmn.edtovResolution) { /* E_D_TOV ticks are in nanoseconds */ |