linux-vybrid_public/drivers/scsi/bfa/include/fcb/bfa_fcb_port.h

/*
 * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
 * All rights reserved
 * www.brocade.com
 *
 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License (GPL) Version 2 as
 * published by the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */

/**
 *  bfa_fcb_port.h BFA FCS virtual port driver interfaces
 */

#ifndef __BFA_FCB_PORT_H__
#define __BFA_FCB_PORT_H__

#include <fcb/bfa_fcb_vport.h>
/**
 *  fcs_port_fcb FCS port driver interfaces
 */

/*
 * Forward declarations
 */
struct bfad_port_s;

/*
 * Callback functions from BFA FCS to driver
 */

/**
 * 	Call from FCS to driver module when a port is instantiated. The port
 * 	can be a base port or a virtual port with in the base fabric or
 * 	a virtual fabric.
 *
 *  On this callback, driver is supposed to create scsi_host, scsi_tgt or
 *  network interfaces bases on ports personality/roles.
 *
 *      base port of base fabric:	vf_drv == NULL && vp_drv == NULL
 *      vport of base fabric:		vf_drv == NULL && vp_drv != NULL
 *      base port of VF:		vf_drv != NULL && vp_drv == NULL
 *      vport of VF:			vf_drv != NULL && vp_drv != NULL
 *
 * @param[in] bfad   - driver instance
 * @param[in] port   - FCS port instance
 * @param[in] roles  - port roles: IM, TM, IP
 * @param[in] vf_drv - VF driver instance, NULL if base fabric (no VF)
 * @param[in] vp_drv - vport driver instance, NULL if base port
 *
 * @return None
 */
struct bfad_port_s *bfa_fcb_port_new(struct bfad_s *bfad,
			struct bfa_fcs_port_s *port,
			enum bfa_port_role roles, struct bfad_vf_s *vf_drv,
			struct bfad_vport_s *vp_drv);

/**
 * 	Call from FCS to driver module when a port is deleted. The port
 * 	can be a base port or a virtual port with in the base fabric or
 * 	a virtual fabric.
 *
 * @param[in] bfad   - driver instance
 * @param[in] roles  - port roles: IM, TM, IP
 * @param[in] vf_drv - VF driver instance, NULL if base fabric (no VF)
 * @param[in] vp_drv - vport driver instance, NULL if base port
 *
 * @return None
 */
void bfa_fcb_port_delete(struct bfad_s *bfad, enum bfa_port_role roles,
			struct bfad_vf_s *vf_drv, struct bfad_vport_s *vp_drv);

/**
 * 	Notification when port transitions to ONLINE state.
 *
 * Online notification is a logical link up for the local port. This
 * notification is sent after a successfull FLOGI, or a successful
 * link initialization in proviate-loop or N2N topologies.
 *
 * @param[in] bfad   - driver instance
 * @param[in] roles  - port roles: IM, TM, IP
 * @param[in] vf_drv - VF driver instance, NULL if base fabric (no VF)
 * @param[in] vp_drv - vport driver instance, NULL if base port
 *
 * @return None
 */
void bfa_fcb_port_online(struct bfad_s *bfad, enum bfa_port_role roles,
			struct bfad_vf_s *vf_drv, struct bfad_vport_s *vp_drv);

/**
 * 	Notification when port transitions to OFFLINE state.
 *
 * Offline notification is a logical link down for the local port.
 *
 * @param[in] bfad   - driver instance
 * @param[in] roles  - port roles: IM, TM, IP
 * @param[in] vf_drv - VF driver instance, NULL if base fabric (no VF)
 * @param[in] vp_drv - vport driver instance, NULL if base port
 *
 * @return None
 */
void bfa_fcb_port_offline(struct bfad_s *bfad, enum bfa_port_role roles,
			struct bfad_vf_s *vf_drv, struct bfad_vport_s *vp_drv);


#endif /* __BFA_FCB_PORT_H__ */