drivers/scsi/lpfc/lpfc_vport.h

   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() */
  29 struct 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 */
  64 struct 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
  87 int lpfc_vport_create(struct fc_vport *, bool);
  88 int lpfc_vport_delete(struct fc_vport *);
  89 int lpfc_vport_getinfo(struct Scsi_Host *, struct vport_info *);
  90 int lpfc_vport_tgt_remove(struct Scsi_Host *, uint, uint);
  91 struct lpfc_vport **lpfc_create_vport_work_array(struct lpfc_hba *);
  92 void lpfc_destroy_vport_work_array(struct lpfc_hba *, struct lpfc_vport **);
  93
  94 /*
  95  *  queuecommand  VPORT-specific return codes. Specified in  the host byte code.
  96  *  Returned when the virtual link has failed or is not active.
  97  */
  98 #define  DID_VPORT_ERROR        0x0f
  99
 100 #define VPORT_INFO      0x1
 101 #define VPORT_CREATE    0x2
 102 #define VPORT_DELETE    0x4
 103
 104 struct vport_cmd_tag {
 105         uint32_t cmd;
 106         struct vport_data cdata;
 107         struct vport_info cinfo;
 108         void *vport;
 109         int vport_num;
 110 };
 111
 112 void lpfc_vport_set_state(struct lpfc_vport *vport,
 113                           enum fc_vport_state new_state);
 114
 115 void lpfc_vport_reset_stat_data(struct lpfc_vport *);
 116 void lpfc_alloc_bucket(struct lpfc_vport *);
 117 void lpfc_free_bucket(struct lpfc_vport *);
 118
 119 #endif /* H_LPFC_VPORT */