On FCoE adapters, when running link bounce test in a loop,
initiator failed to login with switch switch and required driver
reload to recover. Switch reached a point where all subsequent
FLOGIs would be LS_RJT'd. Further testing showed the condition to
be related to not performing FCF discovery between FLOGI's.
Fix by monitoring FLOGI failures and once a repeated error is
seen repeat FCF discovery.
Signed-off-by: Dick Kennedy <dick.kennedy@xxxxxxxxxxxx>
Signed-off-by: James Smart <jsmart2021@xxxxxxxxx>
---
drivers/scsi/lpfc/lpfc_els.c | 2 ++
drivers/scsi/lpfc/lpfc_hbadisc.c | 20 ++++++++++++++++++++
drivers/scsi/lpfc/lpfc_init.c | 2 +-
drivers/scsi/lpfc/lpfc_sli.c | 11 ++---------
drivers/scsi/lpfc/lpfc_sli4.h | 1 +
5 files changed, 26 insertions(+), 10 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index e3e851931394..25625c03a5b3 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -1157,6 +1157,7 @@ lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
spin_unlock_irq(&phba->hbalock);
+ phba->fcf.fcf_redisc_attempted = 0; /* reset */
goto out;
}
if (!rc) {
@@ -1171,6 +1172,7 @@ lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
spin_unlock_irq(&phba->hbalock);
+ phba->fcf.fcf_redisc_attempted = 0; /* reset */
goto out;
}
}
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index f4deb862efc6..a26db7e1d821 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -1992,6 +1992,26 @@ int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index)
"failover and change port state:x%x/x%x\n",
phba->pport->port_state, LPFC_VPORT_UNKNOWN);
phba->pport->port_state = LPFC_VPORT_UNKNOWN;
+
+ if (!phba->fcf.fcf_redisc_attempted) {
+ lpfc_unregister_fcf(phba);
+
+ rc = lpfc_sli4_redisc_fcf_table(phba);
+ if (!rc) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "3195 Rediscover FCF table\n");
+ phba->fcf.fcf_redisc_attempted = 1;
+ lpfc_sli4_clear_fcf_rr_bmask(phba);
+ } else {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
+ "3196 Rediscover FCF table "
+ "failed. Status:x%x\n", rc);
+ }
+ } else {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
+ "3197 Already rediscover FCF table "
+ "attempted. No more retry\n");
+ }
goto stop_flogi_current_fcf;
} else {
lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS,
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 098b5ef3e9b8..d0a1fba1fc74 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -5069,7 +5069,7 @@ lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
break;
}
/* If fast FCF failover rescan event is pending, do nothing */
- if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
+ if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
spin_unlock_irq(&phba->hbalock);
break;
}
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 783a1540cfbe..ee56ab63c657 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -18712,15 +18712,8 @@ lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
goto initial_priority;
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
"2844 No roundrobin failover FCF available\n");
- if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
- return LPFC_FCOE_FCF_NEXT_NONE;
- else {
- lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
- "3063 Only FCF available idx %d, flag %x\n",
- next_fcf_index,
- phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
- return next_fcf_index;
- }
+
+ return LPFC_FCOE_FCF_NEXT_NONE;
}
if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
index e76c380e1a84..8144e207cbf6 100644
--- a/drivers/scsi/lpfc/lpfc_sli4.h
+++ b/drivers/scsi/lpfc/lpfc_sli4.h
@@ -279,6 +279,7 @@ struct lpfc_fcf {
#define FCF_REDISC_EVT 0x100 /* FCF rediscovery event to worker thread */
#define FCF_REDISC_FOV 0x200 /* Post FCF rediscovery fast failover */
#define FCF_REDISC_PROG (FCF_REDISC_PEND | FCF_REDISC_EVT)
+ uint16_t fcf_redisc_attempted;
uint32_t addr_mode;
uint32_t eligible_fcf_cnt;
struct lpfc_fcf_rec current_rec;
--
2.13.1
