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kernel/linux-rt-4.4.41/drivers/scsi/lpfc/lpfc_vport.h 3.8 KB
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  /*******************************************************************
   * This file is part of the Emulex Linux Device Driver for         *
   * Fibre Channel Host Bus Adapters.                                *
   * Copyright (C) 2004-2006 Emulex.  All rights reserved.           *
   * EMULEX and SLI are trademarks of Emulex.                        *
   * www.emulex.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 */