diff options
| author | James Smart <james.smart@emulex.com> | 2010-02-26 14:15:29 -0500 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-03-03 19:09:52 +0530 |
| commit | fc2b989be9190f3311a5ae41289828e24897a20e (patch) | |
| tree | 86de4a9129f003697819af1e5aa5d83eae683b4b /drivers/scsi/lpfc/lpfc_sli.c | |
| parent | e2aed29f29d0d289df3b0b627b122832d4dc80fe (diff) | |
[SCSI] lpfc 8.3.10: Fix Discovery issues
- Prevent Vport discovery after reg_new_vport completes when physical
logged in using FDISC.
- Remove fast FCF failover fabric name matching. Allow failover to FCFs
connected to different fabrics.
- Added fast FCF failover in response to FCF DEAD event on current
FCF record.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_sli.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli.c | 54 |
1 files changed, 49 insertions, 5 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 9feeaff47a5..bb6a4426d46 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -4519,6 +4519,10 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba) /* Post receive buffers to the device */ lpfc_sli4_rb_setup(phba); + /* Reset HBA FCF states after HBA reset */ + phba->fcf.fcf_flag = 0; + phba->fcf.current_rec.flag = 0; + /* Start the ELS watchdog timer */ mod_timer(&vport->els_tmofunc, jiffies + HZ * (phba->fc_ratov * 2)); @@ -12069,11 +12073,26 @@ lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox) "2746 Requesting for FCF rediscovery failed " "status x%x add_status x%x\n", shdr_status, shdr_add_status); - /* - * Request failed, last resort to re-try current - * registered FCF entry - */ - lpfc_retry_pport_discovery(phba); + if (phba->fcf.fcf_flag & FCF_CVL_FOVER) { + spin_lock_irq(&phba->hbalock); + phba->fcf.fcf_flag &= ~FCF_CVL_FOVER; + spin_unlock_irq(&phba->hbalock); + /* + * CVL event triggered FCF rediscover request failed, + * last resort to re-try current registered FCF entry. + */ + lpfc_retry_pport_discovery(phba); + } else { + spin_lock_irq(&phba->hbalock); + phba->fcf.fcf_flag &= ~FCF_DEAD_FOVER; + spin_unlock_irq(&phba->hbalock); + /* + * DEAD FCF event triggered FCF rediscover request + * failed, last resort to fail over as a link down + * to FCF registration. + */ + lpfc_sli4_fcf_dead_failthrough(phba); + } } else /* * Start FCF rediscovery wait timer for pending FCF @@ -12129,6 +12148,31 @@ lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba) } /** + * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event + * @phba: pointer to lpfc hba data structure. + * + * This function is the failover routine as a last resort to the FCF DEAD + * event when driver failed to perform fast FCF failover. + **/ +void +lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba) +{ + uint32_t link_state; + + /* + * Last resort as FCF DEAD event failover will treat this as + * 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); +} + +/** * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled. * @phba: pointer to lpfc hba data structure. * |