linux/drivers/scsi/lpfc/lpfc_vport.h

/*******************************************************************
 * This file is part of the Emulex Linux Device Driver for         *
 * Fibre Channel Host Bus Adapters.                                *
 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term      *
 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries.  *
 * Copyright (C) 2004-2006 Emulex.  All rights reserved.           *
 * EMULEX and SLI are trademarks of Emulex.                        *
 * www.broadcom.com                                                *
 * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
 *                                                                 *
 * This program is free software; you can redistribute it and/or   *
 * modify it under the terms of version 2 of the GNU General       *
 * Public License as published by the Free Software Foundation.    *
 * This program is distributed in the hope that it will be useful. *
 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
 * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
 * more details, a copy of which can be found in the file COPYING  *
 * included with this package.                                     *
 *******************************************************************/

#ifndef _H_LPFC_VPORT
#define _H_LPFC_VPORT

/* API version values (each will be an individual bit) */
#define VPORT_API_VERSION_1	0x01

/* Values returned via lpfc_vport_getinfo() */
struct vport_info {

	uint32_t api_versions;
	uint8_t linktype;
#define  VPORT_TYPE_PHYSICAL	0
#define  VPORT_TYPE_VIRTUAL	1

	uint8_t state;
#define  VPORT_STATE_OFFLINE	0
#define  VPORT_STATE_ACTIVE	1
#define  VPORT_STATE_FAILED	2

	uint8_t fail_reason;
	uint8_t prev_fail_reason;
#define  VPORT_FAIL_UNKNOWN	0
#define  VPORT_FAIL_LINKDOWN	1
#define  VPORT_FAIL_FAB_UNSUPPORTED	2
#define  VPORT_FAIL_FAB_NORESOURCES	3
#define  VPORT_FAIL_FAB_LOGOUT	4
#define  VPORT_FAIL_ADAP_NORESOURCES	5

	uint8_t node_name[8];	/* WWNN */
	uint8_t port_name[8];	/* WWPN */

	struct Scsi_Host *shost;

/* Following values are valid only on physical links */
	uint32_t vports_max;
	uint32_t vports_inuse;
	uint32_t rpi_max;
	uint32_t rpi_inuse;
#define  VPORT_CNT_INVALID	0xFFFFFFFF
};

/* data used  in link creation */
struct vport_data {
	uint32_t api_version;

	uint32_t options;
#define  VPORT_OPT_AUTORETRY	0x01

	uint8_t node_name[8];	/* WWNN */
	uint8_t port_name[8];	/* WWPN */

/*
 *  Upon successful creation, vport_shost will point to the new Scsi_Host
 *  structure for the new virtual link.
 */
	struct Scsi_Host *vport_shost;
};

/* API function return codes */
#define VPORT_OK	0
#define VPORT_ERROR	-1
#define VPORT_INVAL	-2
#define VPORT_NOMEM	-3
#define VPORT_NORESOURCES	-4

int lpfc_vport_create(struct fc_vport *, bool);
int lpfc_vport_delete(struct fc_vport *);
int lpfc_vport_getinfo(struct Scsi_Host *, struct vport_info *);
int lpfc_vport_tgt_remove(struct Scsi_Host *, uint, uint);
struct lpfc_vport **lpfc_create_vport_work_array(struct lpfc_hba *);
void lpfc_destroy_vport_work_array(struct lpfc_hba *, struct lpfc_vport **);
int lpfc_alloc_vpi(struct lpfc_hba *phba);

/*
 *  queuecommand  VPORT-specific return codes. Specified in  the host byte code.
 *  Returned when the virtual link has failed or is not active.
 */
#define  DID_VPORT_ERROR	0x0f

#define VPORT_INFO	0x1
#define VPORT_CREATE	0x2
#define VPORT_DELETE	0x4

struct vport_cmd_tag {
	uint32_t cmd;
	struct vport_data cdata;
	struct vport_info cinfo;
	void *vport;
	int vport_num;
};

void lpfc_vport_set_state(struct lpfc_vport *vport,
			  enum fc_vport_state new_state);

void lpfc_vport_reset_stat_data(struct lpfc_vport *);
void lpfc_alloc_bucket(struct lpfc_vport *);
void lpfc_free_bucket(struct lpfc_vport *);

#endif /* H_LPFC_VPORT */