From f2a0cc3ffd5ee123086b8e76522a85a937d89878 Mon Sep 17 00:00:00 2001 From: Vijaya Mohan Guvva Date: Mon, 13 May 2013 02:33:25 -0700 Subject: [PATCH] [SCSI] bfa: Fix FDISC timeout handling Retry FDISC a max of 6 times. Introduce new events to handle vport login fails due to max logins to fabric/switch. Signed-off-by: Anil Gurumurthy Signed-off-by: Vijaya Mohan Guvva Signed-off-by: James Bottomley --- drivers/scsi/bfa/bfa_fcs_lport.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c index 8773d5e10d30..2f61a5af3658 100644 --- a/drivers/scsi/bfa/bfa_fcs_lport.c +++ b/drivers/scsi/bfa/bfa_fcs_lport.c @@ -5988,6 +5988,7 @@ enum bfa_fcs_vport_event { BFA_FCS_VPORT_SM_RSP_DUP_WWN = 12, /* Dup wnn error*/ BFA_FCS_VPORT_SM_RSP_FAILED = 13, /* non-retryable failure */ BFA_FCS_VPORT_SM_STOPCOMP = 14, /* vport delete completion */ + BFA_FCS_VPORT_SM_FABRIC_MAX = 15, /* max vports on fabric */ }; static void bfa_fcs_vport_sm_uninit(struct bfa_fcs_vport_s *vport, @@ -6173,6 +6174,7 @@ bfa_fcs_vport_sm_fdisc(struct bfa_fcs_vport_s *vport, break; case BFA_FCS_VPORT_SM_RSP_FAILED: + case BFA_FCS_VPORT_SM_FABRIC_MAX: bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline); break; @@ -6243,6 +6245,7 @@ bfa_fcs_vport_sm_fdisc_rsp_wait(struct bfa_fcs_vport_s *vport, case BFA_FCS_VPORT_SM_OFFLINE: case BFA_FCS_VPORT_SM_RSP_ERROR: case BFA_FCS_VPORT_SM_RSP_FAILED: + case BFA_FCS_VPORT_SM_FABRIC_MAX: case BFA_FCS_VPORT_SM_RSP_DUP_WWN: bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup); bfa_sm_send_event(vport->lps, BFA_LPS_SM_OFFLINE); @@ -6528,7 +6531,7 @@ bfa_fcs_vport_fdisc_rejected(struct bfa_fcs_vport_s *vport) else { bfa_fcs_vport_aen_post(&vport->lport, BFA_LPORT_AEN_NPIV_FABRIC_MAX); - bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_FAILED); + bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_FABRIC_MAX); } break; @@ -6914,7 +6917,19 @@ bfa_cb_lps_fdisc_comp(void *bfad, void *uarg, bfa_status_t status) break; } - bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR); + if (vport->fdisc_retries < BFA_FCS_VPORT_MAX_RETRIES) + bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR); + else + bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_FAILED); + + break; + + case BFA_STATUS_ETIMER: + vport->vport_stats.fdisc_timeouts++; + if (vport->fdisc_retries < BFA_FCS_VPORT_MAX_RETRIES) + bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR); + else + bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_FAILED); break; case BFA_STATUS_FABRIC_RJT: -- 2.20.1