1 files changed, 137 insertions, 16 deletions

diff --git a/drivers/scsi/bfa/bfa_fcs.c b/drivers/scsi/bfa/bfa_fcs.c
index 9b43ca4b6778..a9b22bc48bc3 100644
--- a/drivers/scsi/bfa/bfa_fcs.c
+++ b/drivers/scsi/bfa/bfa_fcs.c
@@ -92,25 +92,49 @@ bfa_fcs_attach(struct bfa_fcs_s *fcs, struct bfa_s *bfa, struct bfad_s *bfad,
 void
 bfa_fcs_init(struct bfa_fcs_s *fcs)
 {
-	int		i, npbc_vports;
+	int	i;
 	struct bfa_fcs_mod_s  *mod;
-	struct bfi_pbc_vport_s pbc_vports[BFI_PBC_MAX_VPORTS];
 
 	for (i = 0; i < sizeof(fcs_modules) / sizeof(fcs_modules[0]); i++) {
 		mod = &fcs_modules[i];
 		if (mod->modinit)
 			mod->modinit(fcs);
 	}
+}
+
+/*
+ * FCS update cfg - reset the pwwn/nwwn of fabric base logical port
+ * with values learned during bfa_init firmware GETATTR REQ.
+ */
+void
+bfa_fcs_update_cfg(struct bfa_fcs_s *fcs)
+{
+	struct bfa_fcs_fabric_s *fabric = &fcs->fabric;
+	struct bfa_lport_cfg_s *port_cfg = &fabric->bport.port_cfg;
+	struct bfa_ioc_s *ioc = &fabric->fcs->bfa->ioc;
+
+	port_cfg->nwwn = ioc->attr->nwwn;
+	port_cfg->pwwn = ioc->attr->pwwn;
+}
+
+/*
+ * fcs pbc vport initialization
+ */
+void
+bfa_fcs_pbc_vport_init(struct bfa_fcs_s *fcs)
+{
+	int i, npbc_vports;
+	struct bfi_pbc_vport_s pbc_vports[BFI_PBC_MAX_VPORTS];
+
 	/* Initialize pbc vports */
 	if (!fcs->min_cfg) {
 		npbc_vports =
-		    bfa_iocfc_get_pbc_vports(fcs->bfa, pbc_vports);
+			bfa_iocfc_get_pbc_vports(fcs->bfa, pbc_vports);
 		for (i = 0; i < npbc_vports; i++)
 			bfa_fcb_pbc_vport_create(fcs->bfa->bfad, pbc_vports[i]);
 	}
 }
 
-
 /*
  *	brief
  *		FCS driver details initialization.
@@ -168,11 +192,14 @@ bfa_fcs_exit(struct bfa_fcs_s *fcs)
 #define BFA_FCS_FABRIC_CLEANUP_DELAY	(10000)	/* Milliseconds */
 
 #define bfa_fcs_fabric_set_opertype(__fabric) do {			\
-		if (bfa_fcport_get_topology((__fabric)->fcs->bfa)	\
-		    == BFA_PORT_TOPOLOGY_P2P)				\
+	if (bfa_fcport_get_topology((__fabric)->fcs->bfa)		\
+				== BFA_PORT_TOPOLOGY_P2P) {		\
+		if (fabric->fab_type == BFA_FCS_FABRIC_SWITCHED)	\
 			(__fabric)->oper_type = BFA_PORT_TYPE_NPORT;	\
 		else							\
-			(__fabric)->oper_type = BFA_PORT_TYPE_NLPORT;	\
+			(__fabric)->oper_type = BFA_PORT_TYPE_P2P;	\
+	} else								\
+		(__fabric)->oper_type = BFA_PORT_TYPE_NLPORT;		\
 } while (0)
 
 /*
@@ -196,6 +223,9 @@ static void bfa_fcs_fabric_flogiacc_comp(void *fcsarg,
 					 u32 rsp_len,
 					 u32 resid_len,
 					 struct fchs_s *rspfchs);
+static u8 bfa_fcs_fabric_oper_bbscn(struct bfa_fcs_fabric_s *fabric);
+static bfa_boolean_t bfa_fcs_fabric_is_bbscn_enabled(
+				struct bfa_fcs_fabric_s *fabric);
 
 static void	bfa_fcs_fabric_sm_uninit(struct bfa_fcs_fabric_s *fabric,
 					 enum bfa_fcs_fabric_event event);
@@ -269,8 +299,8 @@ bfa_fcs_fabric_sm_created(struct bfa_fcs_fabric_s *fabric,
 		break;
 
 	case BFA_FCS_FABRIC_SM_DELETE:
-		bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_uninit);
-		bfa_wc_down(&fabric->fcs->wc);
+		bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
+		bfa_fcs_fabric_delete(fabric);
 		break;
 
 	default:
@@ -322,7 +352,8 @@ bfa_fcs_fabric_sm_flogi(struct bfa_fcs_fabric_s *fabric,
 	case BFA_FCS_FABRIC_SM_CONT_OP:
 
 		bfa_fcport_set_tx_bbcredit(fabric->fcs->bfa,
-					   fabric->bb_credit);
+					   fabric->bb_credit,
+					   bfa_fcs_fabric_oper_bbscn(fabric));
 		fabric->fab_type = BFA_FCS_FABRIC_SWITCHED;
 
 		if (fabric->auth_reqd && fabric->is_auth) {
@@ -350,7 +381,8 @@ bfa_fcs_fabric_sm_flogi(struct bfa_fcs_fabric_s *fabric,
 	case BFA_FCS_FABRIC_SM_NO_FABRIC:
 		fabric->fab_type = BFA_FCS_FABRIC_N2N;
 		bfa_fcport_set_tx_bbcredit(fabric->fcs->bfa,
-					   fabric->bb_credit);
+					   fabric->bb_credit,
+					   bfa_fcs_fabric_oper_bbscn(fabric));
 		bfa_fcs_fabric_notify_online(fabric);
 		bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_nofabric);
 		break;
@@ -518,7 +550,11 @@ bfa_fcs_fabric_sm_nofabric(struct bfa_fcs_fabric_s *fabric,
 	case BFA_FCS_FABRIC_SM_NO_FABRIC:
 		bfa_trc(fabric->fcs, fabric->bb_credit);
 		bfa_fcport_set_tx_bbcredit(fabric->fcs->bfa,
-					   fabric->bb_credit);
+					   fabric->bb_credit,
+					   bfa_fcs_fabric_oper_bbscn(fabric));
+		break;
+
+	case BFA_FCS_FABRIC_SM_RETRY_OP:
 		break;
 
 	default:
@@ -764,6 +800,10 @@ bfa_cb_lps_flogi_comp(void *bfad, void *uarg, bfa_status_t status)
 
 	case BFA_STATUS_FABRIC_RJT:
 		fabric->stats.flogi_rejects++;
+		if (fabric->lps->lsrjt_rsn == FC_LS_RJT_RSN_LOGICAL_ERROR &&
+		    fabric->lps->lsrjt_expl == FC_LS_RJT_EXP_NO_ADDL_INFO)
+			fabric->fcs->bbscn_flogi_rjt = BFA_TRUE;
+
 		bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP);
 		return;
 
@@ -793,6 +833,7 @@ bfa_cb_lps_flogi_comp(void *bfad, void *uarg, bfa_status_t status)
 		 */
 		fabric->bport.port_topo.pn2n.rem_port_wwn =
 			fabric->lps->pr_pwwn;
+		fabric->fab_type = BFA_FCS_FABRIC_N2N;
 		bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_NO_FABRIC);
 	}
 
@@ -808,13 +849,17 @@ bfa_fcs_fabric_login(struct bfa_fcs_fabric_s *fabric)
 {
 	struct bfa_s		*bfa = fabric->fcs->bfa;
 	struct bfa_lport_cfg_s	*pcfg = &fabric->bport.port_cfg;
-	u8			alpa = 0;
+	u8			alpa = 0, bb_scn = 0;
 
 	if (bfa_fcport_get_topology(bfa) == BFA_PORT_TOPOLOGY_LOOP)
 		alpa = bfa_fcport_get_myalpa(bfa);
 
+	if (bfa_fcs_fabric_is_bbscn_enabled(fabric) &&
+	    (!fabric->fcs->bbscn_flogi_rjt))
+		bb_scn = BFA_FCS_PORT_DEF_BB_SCN;
+
 	bfa_lps_flogi(fabric->lps, fabric, alpa, bfa_fcport_get_maxfrsize(bfa),
-		      pcfg->pwwn, pcfg->nwwn, fabric->auth_reqd);
+		      pcfg->pwwn, pcfg->nwwn, fabric->auth_reqd, bb_scn);
 
 	fabric->stats.flogi_sent++;
 }
@@ -873,6 +918,40 @@ bfa_fcs_fabric_delay(void *cbarg)
 }
 
 /*
+ * Computes operating BB_SCN value
+ */
+static u8
+bfa_fcs_fabric_oper_bbscn(struct bfa_fcs_fabric_s *fabric)
+{
+	u8	pr_bbscn = fabric->lps->pr_bbscn;
+	struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(fabric->fcs->bfa);
+
+	if (!(fcport->cfg.bb_scn_state && pr_bbscn))
+		return 0;
+
+	/* return max of local/remote bb_scn values */
+	return ((pr_bbscn > BFA_FCS_PORT_DEF_BB_SCN) ?
+		pr_bbscn : BFA_FCS_PORT_DEF_BB_SCN);
+}
+
+/*
+ * Check if BB_SCN can be enabled.
+ */
+static bfa_boolean_t
+bfa_fcs_fabric_is_bbscn_enabled(struct bfa_fcs_fabric_s *fabric)
+{
+	struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(fabric->fcs->bfa);
+
+	if (bfa_ioc_get_fcmode(&fabric->fcs->bfa->ioc) &&
+			fcport->cfg.bb_scn_state &&
+			!bfa_fcport_is_qos_enabled(fabric->fcs->bfa) &&
+			!bfa_fcport_is_trunk_enabled(fabric->fcs->bfa))
+		return BFA_TRUE;
+	else
+		return BFA_FALSE;
+}
+
+/*
  * Delete all vports and wait for vport delete completions.
  */
 static void
@@ -989,6 +1068,7 @@ void
 bfa_fcs_fabric_link_down(struct bfa_fcs_fabric_s *fabric)
 {
 	bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
+	fabric->fcs->bbscn_flogi_rjt = BFA_FALSE;
 	bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LINK_DOWN);
 }
 
@@ -1192,6 +1272,7 @@ bfa_fcs_fabric_process_flogi(struct bfa_fcs_fabric_s *fabric,
 	}
 
 	fabric->bb_credit = be16_to_cpu(flogi->csp.bbcred);
+	fabric->lps->pr_bbscn = (be16_to_cpu(flogi->csp.rxsz) >> 12);
 	bport->port_topo.pn2n.rem_port_wwn = flogi->port_name;
 	bport->port_topo.pn2n.reply_oxid = fchs->ox_id;
 
@@ -1224,9 +1305,10 @@ bfa_fcs_fabric_send_flogi_acc(struct bfa_fcs_fabric_s *fabric)
 				    n2n_port->reply_oxid, pcfg->pwwn,
 				    pcfg->nwwn,
 				    bfa_fcport_get_maxfrsize(bfa),
-				    bfa_fcport_get_rx_bbcredit(bfa));
+				    bfa_fcport_get_rx_bbcredit(bfa),
+				    bfa_fcs_fabric_oper_bbscn(fabric));
 
-	bfa_fcxp_send(fcxp, NULL, fabric->vf_id, fabric->lps->lp_tag,
+	bfa_fcxp_send(fcxp, NULL, fabric->vf_id, fabric->lps->bfa_tag,
 		      BFA_FALSE, FC_CLASS_3,
 		      reqlen, &fchs, bfa_fcs_fabric_flogiacc_comp, fabric,
 		      FC_MAX_PDUSZ, 0);
@@ -1298,6 +1380,45 @@ bfa_fcs_vf_lookup(struct bfa_fcs_s *fcs, u16 vf_id)
 }
 
 /*
+ *	Return the list of local logical ports present in the given VF.
+ *
+ *	@param[in]	vf	vf for which logical ports are returned
+ *	@param[out]	lpwwn	returned logical port wwn list
+ *	@param[in,out]	nlports in:size of lpwwn list;
+ *				out:total elements present,
+ *				actual elements returned is limited by the size
+ */
+void
+bfa_fcs_vf_get_ports(bfa_fcs_vf_t *vf, wwn_t lpwwn[], int *nlports)
+{
+	struct list_head *qe;
+	struct bfa_fcs_vport_s *vport;
+	int	i = 0;
+	struct bfa_fcs_s	*fcs;
+
+	if (vf == NULL || lpwwn == NULL || *nlports == 0)
+		return;
+
+	fcs = vf->fcs;
+
+	bfa_trc(fcs, vf->vf_id);
+	bfa_trc(fcs, (uint32_t) *nlports);
+
+	lpwwn[i++] = vf->bport.port_cfg.pwwn;
+
+	list_for_each(qe, &vf->vport_q) {
+		if (i >= *nlports)
+			break;
+
+		vport = (struct bfa_fcs_vport_s *) qe;
+		lpwwn[i++] = vport->lport.port_cfg.pwwn;
+	}
+
+	bfa_trc(fcs, i);
+	*nlports = i;
+}
+
+/*
  * BFA FCS PPORT ( physical port)
  */
 static void