linux/drivers/scsi/lpfc/lpfc_vport.h
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   1/*******************************************************************
   2 * This file is part of the Emulex Linux Device Driver for         *
   3 * Fibre Channel Host Bus Adapters.                                *
   4 * Copyright (C) 2004-2006 Emulex.  All rights reserved.           *
   5 * EMULEX and SLI are trademarks of Emulex.                        *
   6 * www.emulex.com                                                  *
   7 * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   8 *                                                                 *
   9 * This program is free software; you can redistribute it and/or   *
  10 * modify it under the terms of version 2 of the GNU General       *
  11 * Public License as published by the Free Software Foundation.    *
  12 * This program is distributed in the hope that it will be useful. *
  13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  17 * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  18 * more details, a copy of which can be found in the file COPYING  *
  19 * included with this package.                                     *
  20 *******************************************************************/
  21
  22#ifndef _H_LPFC_VPORT
  23#define _H_LPFC_VPORT
  24
  25/* API version values (each will be an individual bit) */
  26#define VPORT_API_VERSION_1     0x01
  27
  28/* Values returned via lpfc_vport_getinfo() */
  29struct vport_info {
  30
  31        uint32_t api_versions;
  32        uint8_t linktype;
  33#define  VPORT_TYPE_PHYSICAL    0
  34#define  VPORT_TYPE_VIRTUAL     1
  35
  36        uint8_t state;
  37#define  VPORT_STATE_OFFLINE    0
  38#define  VPORT_STATE_ACTIVE     1
  39#define  VPORT_STATE_FAILED     2
  40
  41        uint8_t fail_reason;
  42        uint8_t prev_fail_reason;
  43#define  VPORT_FAIL_UNKNOWN     0
  44#define  VPORT_FAIL_LINKDOWN    1
  45#define  VPORT_FAIL_FAB_UNSUPPORTED     2
  46#define  VPORT_FAIL_FAB_NORESOURCES     3
  47#define  VPORT_FAIL_FAB_LOGOUT  4
  48#define  VPORT_FAIL_ADAP_NORESOURCES    5
  49
  50        uint8_t node_name[8];   /* WWNN */
  51        uint8_t port_name[8];   /* WWPN */
  52
  53        struct Scsi_Host *shost;
  54
  55/* Following values are valid only on physical links */
  56        uint32_t vports_max;
  57        uint32_t vports_inuse;
  58        uint32_t rpi_max;
  59        uint32_t rpi_inuse;
  60#define  VPORT_CNT_INVALID      0xFFFFFFFF
  61};
  62
  63/* data used  in link creation */
  64struct vport_data {
  65        uint32_t api_version;
  66
  67        uint32_t options;
  68#define  VPORT_OPT_AUTORETRY    0x01
  69
  70        uint8_t node_name[8];   /* WWNN */
  71        uint8_t port_name[8];   /* WWPN */
  72
  73/*
  74 *  Upon successful creation, vport_shost will point to the new Scsi_Host
  75 *  structure for the new virtual link.
  76 */
  77        struct Scsi_Host *vport_shost;
  78};
  79
  80/* API function return codes */
  81#define VPORT_OK        0
  82#define VPORT_ERROR     -1
  83#define VPORT_INVAL     -2
  84#define VPORT_NOMEM     -3
  85#define VPORT_NORESOURCES       -4
  86
  87int lpfc_vport_create(struct fc_vport *, bool);
  88int lpfc_vport_delete(struct fc_vport *);
  89int lpfc_vport_getinfo(struct Scsi_Host *, struct vport_info *);
  90int lpfc_vport_tgt_remove(struct Scsi_Host *, uint, uint);
  91struct lpfc_vport **lpfc_create_vport_work_array(struct lpfc_hba *);
  92void lpfc_destroy_vport_work_array(struct lpfc_hba *, struct lpfc_vport **);
  93int lpfc_alloc_vpi(struct lpfc_hba *phba);
  94
  95/*
  96 *  queuecommand  VPORT-specific return codes. Specified in  the host byte code.
  97 *  Returned when the virtual link has failed or is not active.
  98 */
  99#define  DID_VPORT_ERROR        0x0f
 100
 101#define VPORT_INFO      0x1
 102#define VPORT_CREATE    0x2
 103#define VPORT_DELETE    0x4
 104
 105struct vport_cmd_tag {
 106        uint32_t cmd;
 107        struct vport_data cdata;
 108        struct vport_info cinfo;
 109        void *vport;
 110        int vport_num;
 111};
 112
 113void lpfc_vport_set_state(struct lpfc_vport *vport,
 114                          enum fc_vport_state new_state);
 115
 116void lpfc_vport_reset_stat_data(struct lpfc_vport *);
 117void lpfc_alloc_bucket(struct lpfc_vport *);
 118void lpfc_free_bucket(struct lpfc_vport *);
 119
 120#endif /* H_LPFC_VPORT */
 121