[SCSI] bfa: Driver initialization and model description fix

- Moved FCS initialization, which internally does the im_port creation
  as well as the scsi_host creation before bfa_init.

Once the bfa_init is complete & successful:
- Reset the FCS base port cfg params such as pwwn/nwwn and setup fc host
  params - based on the values learned during the ioc getattr request.
- Change needed to support BSG commands even on bfa init failure.
- Model description fixes for Brocade adapters.
Signed-off-by: NKrishna Gudipati <kgudipat@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

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.

drivers/scsi/bfa/bfa_fcs.h

@@ -721,6 +721,8 @@ void bfa_fcs_attach(struct bfa_fcs_s *fcs, struct bfa_s *bfa,
 		    struct bfad_s *bfad,
 		    bfa_boolean_t min_cfg);
 void bfa_fcs_init(struct bfa_fcs_s *fcs);
+void bfa_fcs_pbc_vport_init(struct bfa_fcs_s *fcs);
+void bfa_fcs_update_cfg(struct bfa_fcs_s *fcs);
 void bfa_fcs_driver_info_init(struct bfa_fcs_s *fcs,
 			      struct bfa_fcs_driver_info_s *driver_info);
 void bfa_fcs_exit(struct bfa_fcs_s *fcs);

drivers/scsi/bfa/bfa_ioc.h

@@ -287,8 +287,8 @@ struct bfa_ioc_hwif_s {
 #define bfa_ioc_portid(__ioc)		((__ioc)->port_id)
 #define bfa_ioc_asic_gen(__ioc)		((__ioc)->asic_gen)
 #define bfa_ioc_is_cna(__ioc)	\
-	((bfa_ioc_get_type(ioc) == BFA_IOC_TYPE_FCoE) ||	\
-	 (bfa_ioc_get_type(ioc) == BFA_IOC_TYPE_LL))
+	((bfa_ioc_get_type(__ioc) == BFA_IOC_TYPE_FCoE) ||	\
+	 (bfa_ioc_get_type(__ioc) == BFA_IOC_TYPE_LL))
 #define bfa_ioc_fetch_stats(__ioc, __stats) \
 		(((__stats)->drv_stats) = (__ioc)->stats)
 #define bfa_ioc_clr_stats(__ioc)	\

drivers/scsi/bfa/bfad.c

@@ -915,12 +915,29 @@ bfad_drv_init(struct bfad_s *bfad)
 	bfa_fcs_attach(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE);
 	bfad->bfa_fcs.fdmi_enabled = fdmi_enable;
 	bfad->bfa_fcs.bbscn_enabled = fc_credit_recovery;
+	bfa_fcs_init(&bfad->bfa_fcs);
 	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 
 	bfad->bfad_flags |= BFAD_DRV_INIT_DONE;
 
+	/* configure base port */
+	rc = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
+	if (rc != BFA_STATUS_OK)
+		goto out_cfg_pport_fail;
+
 	return BFA_STATUS_OK;
 
+out_cfg_pport_fail:
+	/* fcs exit - on cfg pport failure */
+	spin_lock_irqsave(&bfad->bfad_lock, flags);
+	init_completion(&bfad->comp);
+	bfad->pport.flags |= BFAD_PORT_DELETE;
+	bfa_fcs_exit(&bfad->bfa_fcs);
+	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+	wait_for_completion(&bfad->comp);
+	/* bfa detach - free hal memory */
+	bfa_detach(&bfad->bfa);
+	bfad_hal_mem_release(bfad);
 out_hal_mem_alloc_failure:
 	return BFA_STATUS_FAILED;
 }
@@ -952,6 +969,7 @@ bfad_drv_start(struct bfad_s *bfad)
 
 	spin_lock_irqsave(&bfad->bfad_lock, flags);
 	bfa_iocfc_start(&bfad->bfa);
+	bfa_fcs_pbc_vport_init(&bfad->bfa_fcs);
 	bfa_fcs_fabric_modstart(&bfad->bfa_fcs);
 	bfad->bfad_flags |= BFAD_HAL_START_DONE;
 	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
@@ -1056,19 +1074,19 @@ bfad_start_ops(struct bfad_s *bfad) {
 	strncpy(driver_info.os_device_name, bfad->pci_name,
 		sizeof(driver_info.os_device_name - 1));
 
-	/* FCS INIT */
+	/* FCS driver info init */
 	spin_lock_irqsave(&bfad->bfad_lock, flags);
 	bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info);
-	bfa_fcs_init(&bfad->bfa_fcs);
 	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 
-	retval = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
-	if (retval != BFA_STATUS_OK) {
-		if (bfa_sm_cmp_state(bfad, bfad_sm_initializing))
-			bfa_sm_set_state(bfad, bfad_sm_failed);
-		bfad_stop(bfad);
-		return BFA_STATUS_FAILED;
-	}
+	/*
+	 * FCS update cfg - reset the pwwn/nwwn of fabric base logical port
+	 * with values learned during bfa_init firmware GETATTR REQ.
+	 */
+	bfa_fcs_update_cfg(&bfad->bfa_fcs);
+
+	/* Setup fc host fixed attribute if the lk supports */
+	bfad_fc_host_init(bfad->pport.im_port);
 
 	/* BFAD level FC4 IM specific resource allocation */
 	retval = bfad_im_probe(bfad);

drivers/scsi/bfa/bfad_attr.c

@@ -677,8 +677,10 @@ bfad_im_model_desc_show(struct device *dev, struct device_attribute *attr,
 	struct bfad_s *bfad = im_port->bfad;
 	char model[BFA_ADAPTER_MODEL_NAME_LEN];
 	char model_descr[BFA_ADAPTER_MODEL_DESCR_LEN];
+	int nports = 0;
 
 	bfa_get_adapter_model(&bfad->bfa, model);
+	nports = bfa_get_nports(&bfad->bfa);
 	if (!strcmp(model, "Brocade-425"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
 			"Brocade 4Gbps PCIe dual port FC HBA");
@@ -687,10 +689,10 @@ bfad_im_model_desc_show(struct device *dev, struct device_attribute *attr,
 			"Brocade 8Gbps PCIe dual port FC HBA");
 	else if (!strcmp(model, "Brocade-42B"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"HP 4Gbps PCIe dual port FC HBA");
+			"Brocade 4Gbps PCIe dual port FC HBA for HP");
 	else if (!strcmp(model, "Brocade-82B"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"HP 8Gbps PCIe dual port FC HBA");
+			"Brocade 8Gbps PCIe dual port FC HBA for HP");
 	else if (!strcmp(model, "Brocade-1010"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
 			"Brocade 10Gbps single port CNA");
@@ -699,7 +701,7 @@ bfad_im_model_desc_show(struct device *dev, struct device_attribute *attr,
 			"Brocade 10Gbps dual port CNA");
 	else if (!strcmp(model, "Brocade-1007"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"Brocade 10Gbps CNA");
+			"Brocade 10Gbps CNA for IBM Blade Center");
 	else if (!strcmp(model, "Brocade-415"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
 			"Brocade 4Gbps PCIe single port FC HBA");
@@ -708,17 +710,45 @@ bfad_im_model_desc_show(struct device *dev, struct device_attribute *attr,
 			"Brocade 8Gbps PCIe single port FC HBA");
 	else if (!strcmp(model, "Brocade-41B"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"HP 4Gbps PCIe single port FC HBA");
+			"Brocade 4Gbps PCIe single port FC HBA for HP");
 	else if (!strcmp(model, "Brocade-81B"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"HP 8Gbps PCIe single port FC HBA");
+			"Brocade 8Gbps PCIe single port FC HBA for HP");
 	else if (!strcmp(model, "Brocade-804"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"HP Bladesystem C-class 8Gbps FC HBA");
-	else if (!strcmp(model, "Brocade-902"))
+			"Brocade 8Gbps FC HBA for HP Bladesystem C-class");
+	else if (!strcmp(model, "Brocade-902") ||
+		 !strcmp(model, "Brocade-1741"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"Brocade 10Gbps CNA");
-	else
+			"Brocade 10Gbps CNA for Dell M-Series Blade Servers");
+	else if (strstr(model, "Brocade-1560")) {
+		if (nports == 1)
+			snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
+				"Brocade 16Gbps PCIe single port FC HBA");
+		else
+			snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
+				"Brocade 16Gbps PCIe dual port FC HBA");
+	} else if (strstr(model, "Brocade-1710")) {
+		if (nports == 1)
+			snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
+				"Brocade 10Gbps single port CNA");
+		else
+			snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
+				"Brocade 10Gbps dual port CNA");
+	} else if (strstr(model, "Brocade-1860")) {
+		if (nports == 1 && bfa_ioc_is_cna(&bfad->bfa.ioc))
+			snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
+				"Brocade 10Gbps single port CNA");
+		else if (nports == 1 && !bfa_ioc_is_cna(&bfad->bfa.ioc))
+			snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
+				"Brocade 16Gbps PCIe single port FC HBA");
+		else if (nports == 2 && bfa_ioc_is_cna(&bfad->bfa.ioc))
+			snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
+				"Brocade 10Gbps dual port CNA");
+		else if (nports == 2 && !bfa_ioc_is_cna(&bfad->bfa.ioc))
+			snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
+				"Brocade 16Gbps PCIe dual port FC HBA");
+	} else
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
 			"Invalid Model");
 

drivers/scsi/bfa/bfad_im.c

@@ -175,21 +175,11 @@ bfad_im_info(struct Scsi_Host *shost)
 	struct bfad_im_port_s *im_port =
 			(struct bfad_im_port_s *) shost->hostdata[0];
 	struct bfad_s *bfad = im_port->bfad;
-	struct bfa_s *bfa = &bfad->bfa;
-	struct bfa_ioc_s *ioc = &bfa->ioc;
-	char model[BFA_ADAPTER_MODEL_NAME_LEN];
-
-	bfa_get_adapter_model(bfa, model);
 
 	memset(bfa_buf, 0, sizeof(bfa_buf));
-	if (bfa_ioc_is_cna(ioc))
-		snprintf(bfa_buf, sizeof(bfa_buf),
-		"Brocade FCOE Adapter, " "model: %s hwpath: %s driver: %s",
-		 model, bfad->pci_name, BFAD_DRIVER_VERSION);
-	else
-		snprintf(bfa_buf, sizeof(bfa_buf),
-		"Brocade FC Adapter, " "model: %s hwpath: %s driver: %s",
-		model, bfad->pci_name, BFAD_DRIVER_VERSION);
+	snprintf(bfa_buf, sizeof(bfa_buf),
+		"Brocade FC/FCOE Adapter, " "hwpath: %s driver: %s",
+		bfad->pci_name, BFAD_DRIVER_VERSION);
 
 	return bfa_buf;
 }
@@ -572,9 +562,6 @@ bfad_im_scsi_host_alloc(struct bfad_s *bfad, struct bfad_im_port_s *im_port,
 		goto out_fc_rel;
 	}
 
-	/* setup host fixed attribute if the lk supports */
-	bfad_fc_host_init(im_port);
-
 	return 0;
 
 out_fc_rel: