[SCSI] bfa: FCS bug fixes.

- Added logic to initiate a PLOGI to the target, while processing a LOGO
  from the same target in Direct attach mode.
- Added logic to generate a FCCT Reject indicating unsupported command,
  upon receiving FCCT/FCGS requests.
- Added logic to set the fcpim in offline state and avoid any PRLI retries
  if a PRLI response is a reject with a reason Command Not Supported.
- Updated the FDMI Supported/Current speeds.
- Added logic to wait for the response  from the firmware before sending
  ACC to PLOGI and transitioning to subsequent states - while processing an
  Incoming PLOGI in online state.
- Added a wait state in the fcs_vport state machine - For case where
  FDISC is in progress and we get a vport delete request we wait for
  fdisc response and will transition to the appropriate state based on
  rsp status, else its causing both driver/fw resources to be not
  freed.
- Remove the fc_credit_recovery module param.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/scsi/bfa/bfa_fcs_fcpim.c b/drivers/scsi/bfa/bfa_fcs_fcpim.c
index e7b49f4cb51f..29b4108be269 100644
--- a/drivers/scsi/bfa/bfa_fcs_fcpim.c
+++ b/drivers/scsi/bfa/bfa_fcs_fcpim.c
@@ -54,6 +54,7 @@ enum bfa_fcs_itnim_event {
 	BFA_FCS_ITNIM_SM_INITIATOR = 9,	/*  rport is initiator */
 	BFA_FCS_ITNIM_SM_DELETE = 10,	/*  delete event from rport */
 	BFA_FCS_ITNIM_SM_PRLO = 11,	/*  delete event from rport */
+	BFA_FCS_ITNIM_SM_RSP_NOT_SUPP = 12, /* cmd not supported rsp */
 };
 
 static void	bfa_fcs_itnim_sm_offline(struct bfa_fcs_itnim_s *itnim,
@@ -178,6 +179,10 @@ bfa_fcs_itnim_sm_prli(struct bfa_fcs_itnim_s *itnim,
 				BFA_FCS_RETRY_TIMEOUT);
 		break;
 
+	case BFA_FCS_ITNIM_SM_RSP_NOT_SUPP:
+		bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
+		break;
+
 	case BFA_FCS_ITNIM_SM_OFFLINE:
 		bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
 		bfa_fcxp_discard(itnim->fcxp);
@@ -447,6 +452,7 @@ bfa_fcs_itnim_prli_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
 				itnim->rport->scsi_function =
 					 BFA_RPORT_INITIATOR;
 				itnim->stats.prli_rsp_acc++;
+				itnim->stats.initiator++;
 				bfa_sm_send_event(itnim,
 						  BFA_FCS_ITNIM_SM_RSP_OK);
 				return;
@@ -472,6 +478,10 @@ bfa_fcs_itnim_prli_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
 		bfa_trc(itnim->fcs, ls_rjt->reason_code_expl);
 
 		itnim->stats.prli_rsp_rjt++;
+		if (ls_rjt->reason_code == FC_LS_RJT_RSN_CMD_NOT_SUPP) {
+			bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_RSP_NOT_SUPP);
+			return;
+		}
 		bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_RSP_ERROR);
 	}
 }