diff options
| author | James Smart <jsmart2021@gmail.com> | 2018-11-30 03:09:30 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-12-08 06:35:32 +0300 |
| commit | dea16bdae2f1ab629702ca912dabe00f3dcdac25 (patch) | |
| tree | 46a02b8f0ea6aef0ad70667e29b5868f8dffbb5b /drivers/scsi/lpfc/lpfc_crtn.h | |
| parent | 3e1f0718921cd13384ff29d7468c4b328d8980ad (diff) | |
| download | linux-dea16bdae2f1ab629702ca912dabe00f3dcdac25.tar.xz | |
scsi: lpfc: Fix discovery failures during port failovers with lots of vports
The driver is getting hit with 100s of RSCNs during remote port address
changes. Each of those RSCN's ends up generating UNREG_RPI and REG_PRI
mailbox commands. The discovery engine within the driver doesn't wait for
the mailbox command completions. Instead it sets state flags and moves
forward. At some point, there's a massive backlog of mailbox commands which
take time for the adapter to process. Additionally, it appears there were
duplicate events from the switch so the driver generated duplicate mailbox
commands for the same remote port. During this window, failures on PLOGI
and PRLI ELS's are see as the adapter is rejecting them as they are for
remote ports that still have pending mailbox commands.
Streamline the discovery engine so that PLOGI log checks for outstanding
UNREG_RPIs and defer the processing until the commands complete. This
better synchronizes the ELS transmission vs the RPI registrations.
Filter out multiple UNREG_RPIs being queued up for the same remote port.
Beef up log messages in this area.
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_crtn.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_crtn.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h index a4b1bc2782eb..5edea80fd7f1 100644 --- a/drivers/scsi/lpfc/lpfc_crtn.h +++ b/drivers/scsi/lpfc/lpfc_crtn.h @@ -74,7 +74,6 @@ void lpfc_mbx_cmpl_read_topology(struct lpfc_hba *, LPFC_MBOXQ_t *); void lpfc_init_vpi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); void lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *); void lpfc_retry_pport_discovery(struct lpfc_hba *); -void lpfc_release_rpi(struct lpfc_hba *, struct lpfc_vport *, uint16_t); int lpfc_init_iocb_list(struct lpfc_hba *phba, int cnt); void lpfc_free_iocb_list(struct lpfc_hba *phba); int lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq, |