1 files changed, 71 insertions, 1 deletions

diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 13d873f806e4..e1281a1ce488 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -4,7 +4,7 @@
  *
  * Interface to Linux SCSI midlayer.
  *
- * Copyright IBM Corp. 2002, 2018
+ * Copyright IBM Corp. 2002, 2020
  */
 
 #define KMSG_COMPONENT "zfcp"
@@ -841,6 +841,76 @@ void zfcp_scsi_dif_sense_error(struct scsi_cmnd *scmd, int ascq)
 	set_host_byte(scmd, DID_SOFT_ERROR);
 }
 
+void zfcp_scsi_shost_update_config_data(
+	struct zfcp_adapter *const adapter,
+	const struct fsf_qtcb_bottom_config *const bottom,
+	const bool bottom_incomplete)
+{
+	struct Scsi_Host *const shost = adapter->scsi_host;
+	const struct fc_els_flogi *nsp, *plogi;
+
+	if (shost == NULL)
+		return;
+
+	snprintf(fc_host_firmware_version(shost), FC_VERSION_STRING_SIZE,
+		 "0x%08x", bottom->lic_version);
+
+	if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) {
+		snprintf(fc_host_hardware_version(shost),
+			 FC_VERSION_STRING_SIZE,
+			 "0x%08x", bottom->hardware_version);
+		memcpy(fc_host_serial_number(shost), bottom->serial_number,
+		       min(FC_SERIAL_NUMBER_SIZE, 17));
+		EBCASC(fc_host_serial_number(shost),
+		       min(FC_SERIAL_NUMBER_SIZE, 17));
+	}
+
+	/* adjust pointers for missing command code */
+	nsp = (struct fc_els_flogi *) ((u8 *)&bottom->nport_serv_param
+					- sizeof(u32));
+	plogi = (struct fc_els_flogi *) ((u8 *)&bottom->plogi_payload
+					- sizeof(u32));
+
+	snprintf(fc_host_manufacturer(shost), FC_SERIAL_NUMBER_SIZE, "%s",
+		 "IBM");
+	fc_host_port_name(shost) = be64_to_cpu(nsp->fl_wwpn);
+	fc_host_node_name(shost) = be64_to_cpu(nsp->fl_wwnn);
+	fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3;
+
+	zfcp_scsi_set_prot(adapter);
+
+	/* do not evaluate invalid fields */
+	if (bottom_incomplete)
+		return;
+
+	fc_host_port_id(shost) = ntoh24(bottom->s_id);
+	fc_host_speed(shost) =
+		zfcp_fsf_convert_portspeed(bottom->fc_link_speed);
+
+	snprintf(fc_host_model(shost), FC_SYMBOLIC_NAME_SIZE, "0x%04x",
+		 bottom->adapter_type);
+
+	switch (bottom->fc_topology) {
+	case FSF_TOPO_P2P:
+		fc_host_port_type(shost) = FC_PORTTYPE_PTP;
+		fc_host_fabric_name(shost) = 0;
+		break;
+	case FSF_TOPO_FABRIC:
+		fc_host_fabric_name(shost) = be64_to_cpu(plogi->fl_wwnn);
+		if (bottom->connection_features & FSF_FEATURE_NPIV_MODE)
+			fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
+		else
+			fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
+		break;
+	case FSF_TOPO_AL:
+		fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
+		fallthrough;
+	default:
+		fc_host_fabric_name(shost) = 0;
+		break;
+	}
+}
+
 struct fc_function_template zfcp_transport_functions = {
 	.show_starget_port_id = 1,
 	.show_starget_port_name = 1,