diff options
| author | Vasu Dev <vasu.dev@intel.com> | 2011-10-28 11:34:17 -0700 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2011-10-31 13:27:19 +0400 |
| commit | b6e3c84034b93e6acc895711f74730e235dfe9d2 (patch) | |
| tree | d4f80cd98ba82f5900a1f21ff9b623d86ed12c8f | |
| parent | 14fc315fa30d128760c7edeff56530142576cd2e (diff) | |
[SCSI] libfc: avoid exchanges collision during lport reset
Currently timer delay is large and is using msleep to avoid
avoid exchanges collision across lport reset, so instead
do this by initializing exches pool indexes during
reset also.
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Tested-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| -rw-r--r-- | drivers/scsi/libfc/fc_exch.c | 4 | ||||
| -rw-r--r-- | drivers/scsi/libfc/fc_lport.c | 10 |
2 files changed, 5 insertions, 9 deletions
diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c index 81235f36adc..1b22130035d 100644 --- a/drivers/scsi/libfc/fc_exch.c +++ b/drivers/scsi/libfc/fc_exch.c @@ -1793,6 +1793,9 @@ restart: goto restart; } } + pool->next_index = 0; + pool->left = FC_XID_UNKNOWN; + pool->right = FC_XID_UNKNOWN; spin_unlock_bh(&pool->lock); } @@ -2281,6 +2284,7 @@ struct fc_exch_mgr *fc_exch_mgr_alloc(struct fc_lport *lport, goto free_mempool; for_each_possible_cpu(cpu) { pool = per_cpu_ptr(mp->pool, cpu); + pool->next_index = 0; pool->left = FC_XID_UNKNOWN; pool->right = FC_XID_UNKNOWN; spin_lock_init(&pool->lock); diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c index 628f347404f..e0fb8913356 100644 --- a/drivers/scsi/libfc/fc_lport.c +++ b/drivers/scsi/libfc/fc_lport.c @@ -1030,16 +1030,8 @@ static void fc_lport_enter_reset(struct fc_lport *lport) FCH_EVT_LIPRESET, 0); fc_vports_linkchange(lport); fc_lport_reset_locked(lport); - if (lport->link_up) { - /* - * Wait upto resource allocation time out before - * doing re-login since incomplete FIP exchanged - * from last session may collide with exchanges - * in new session. - */ - msleep(lport->r_a_tov); + if (lport->link_up) fc_lport_enter_flogi(lport); - } } /** |