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) 2017-2018 Broadcom. All Rights Reserved. The term *
   5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.     *
   6 * Copyright (C) 2004-2006 Emulex.  All rights reserved.           *
   7 * EMULEX and SLI are trademarks of Emulex.                        *
   8 * www.broadcom.com                                                *
   9 * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
  10 *                                                                 *
  11 * This program is free software; you can redistribute it and/or   *
  12 * modify it under the terms of version 2 of the GNU General       *
  13 * Public License as published by the Free Software Foundation.    *
  14 * This program is distributed in the hope that it will be useful. *
  15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  19 * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  20 * more details, a copy of which can be found in the file COPYING  *
  21 * included with this package.                                     *
  22 *******************************************************************/
  23
  24#ifndef _H_LPFC_VPORT
  25#define _H_LPFC_VPORT
  26
  27/* API version values (each will be an individual bit) */
  28#define VPORT_API_VERSION_1     0x01
  29
  30/* Values returned via lpfc_vport_getinfo() */
  31struct vport_info {
  32
  33        uint32_t api_versions;
  34        uint8_t linktype;
  35#define  VPORT_TYPE_PHYSICAL    0
  36#define  VPORT_TYPE_VIRTUAL     1
  37
  38        uint8_t state;
  39#define  VPORT_STATE_OFFLINE    0
  40#define  VPORT_STATE_ACTIVE     1
  41#define  VPORT_STATE_FAILED     2
  42
  43        uint8_t fail_reason;
  44        uint8_t prev_fail_reason;
  45#define  VPORT_FAIL_UNKNOWN     0
  46#define  VPORT_FAIL_LINKDOWN    1
  47#define  VPORT_FAIL_FAB_UNSUPPORTED     2
  48#define  VPORT_FAIL_FAB_NORESOURCES     3
  49#define  VPORT_FAIL_FAB_LOGOUT  4
  50#define  VPORT_FAIL_ADAP_NORESOURCES    5
  51
  52        uint8_t node_name[8];   /* WWNN */
  53        uint8_t port_name[8];   /* WWPN */
  54
  55        struct Scsi_Host *shost;
  56
  57/* Following values are valid only on physical links */
  58        uint32_t vports_max;
  59        uint32_t vports_inuse;
  60        uint32_t rpi_max;
  61        uint32_t rpi_inuse;
  62#define  VPORT_CNT_INVALID      0xFFFFFFFF
  63};
  64
  65/* data used  in link creation */
  66struct vport_data {
  67        uint32_t api_version;
  68
  69        uint32_t options;
  70#define  VPORT_OPT_AUTORETRY    0x01
  71
  72        uint8_t node_name[8];   /* WWNN */
  73        uint8_t port_name[8];   /* WWPN */
  74
  75/*
  76 *  Upon successful creation, vport_shost will point to the new Scsi_Host
  77 *  structure for the new virtual link.
  78 */
  79        struct Scsi_Host *vport_shost;
  80};
  81
  82/* API function return codes */
  83#define VPORT_OK        0
  84#define VPORT_ERROR     -1
  85#define VPORT_INVAL     -2
  86#define VPORT_NOMEM     -3
  87#define VPORT_NORESOURCES       -4
  88
  89int lpfc_vport_create(struct fc_vport *, bool);
  90int lpfc_vport_delete(struct fc_vport *);
  91int lpfc_vport_getinfo(struct Scsi_Host *, struct vport_info *);
  92int lpfc_vport_tgt_remove(struct Scsi_Host *, uint, uint);
  93struct lpfc_vport **lpfc_create_vport_work_array(struct lpfc_hba *);
  94void lpfc_destroy_vport_work_array(struct lpfc_hba *, struct lpfc_vport **);
  95int lpfc_alloc_vpi(struct lpfc_hba *phba);
  96
  97/*
  98 *  queuecommand  VPORT-specific return codes. Specified in  the host byte code.
  99 *  Returned when the virtual link has failed or is not active.
 100 */
 101#define  DID_VPORT_ERROR        0x0f
 102
 103#define VPORT_INFO      0x1
 104#define VPORT_CREATE    0x2
 105#define VPORT_DELETE    0x4
 106
 107struct vport_cmd_tag {
 108        uint32_t cmd;
 109        struct vport_data cdata;
 110        struct vport_info cinfo;
 111        void *vport;
 112        int vport_num;
 113};
 114
 115void lpfc_vport_set_state(struct lpfc_vport *vport,
 116                          enum fc_vport_state new_state);
 117
 118void lpfc_vport_reset_stat_data(struct lpfc_vport *);
 119void lpfc_alloc_bucket(struct lpfc_vport *);
 120void lpfc_free_bucket(struct lpfc_vport *);
 121
 122#endif /* H_LPFC_VPORT */
 123