[fc] Allow Fibre Channel ports to be explicitly named

Use the network interface name as the Fibre Channel port name.

Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/include/ipxe/fc.h

 extern void fc_port_logout ( struct fc_port *port, int rc );
 extern int fc_port_open ( struct interface *transport,
 			  const struct fc_name *node_wwn,
-			  const struct fc_name *port_wwn );
+			  const struct fc_name *port_wwn,
+			  const char *name );
 extern struct fc_port * fc_port_find ( const char *name );
 
 /******************************************************************************

src/net/fc.c

  * @v transport		Transport interface
  * @v node		Fibre Channel node name
  * @v port		Fibre Channel port name
+ * @v name		Symbolic port name
  * @ret rc		Return status code
  */
 int fc_port_open ( struct interface *transport, const struct fc_name *node_wwn,
-		   const struct fc_name *port_wwn ) {
-	static unsigned int portindex = 0;
+		   const struct fc_name *port_wwn, const char *name ) {
 	struct fc_port *port;
 
 	/* Allocate and initialise structure */
 	INIT_LIST_HEAD ( &port->xchgs );
 	memcpy ( &port->node_wwn, node_wwn, sizeof ( port->node_wwn ) );
 	memcpy ( &port->port_wwn, port_wwn, sizeof ( port->port_wwn ) );
-
-	/* Create device name */
-	snprintf ( port->name, sizeof ( port->name ), "fc%d", portindex++ );
+	snprintf ( port->name, sizeof ( port->name ), "%s", name );
 
 	DBGC ( port, "FCPORT %s opened as %s",
 	       port->name, fc_ntoa ( &port->node_wwn ) );

src/net/fcoe.c

 
 		/* Attach Fibre Channel port */
 		if ( ( rc = fc_port_open ( &fcoe->transport, &fcoe->node_wwn.fc,
-					   &fcoe->port_wwn.fc ) ) != 0 ) {
+					   &fcoe->port_wwn.fc,
+					   fcoe->netdev->name ) ) != 0 ) {
 			DBGC ( fcoe, "FCoE %s could not create FC port: %s\n",
 			       fcoe->netdev->name, strerror ( rc ) );
 			/* We will try again on the next timer expiry */