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) 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() */
  31 struct 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 */
  66 struct 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
  89 int lpfc_vport_create(struct fc_vport *, bool);
  90 int lpfc_vport_delete(struct fc_vport *);
  91 int lpfc_vport_getinfo(struct Scsi_Host *, struct vport_info *);
  92 int lpfc_vport_tgt_remove(struct Scsi_Host *, uint, uint);
  93 struct lpfc_vport **lpfc_create_vport_work_array(struct lpfc_hba *);
  94 void lpfc_destroy_vport_work_array(struct lpfc_hba *, struct lpfc_vport **);
  95 int 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
 107 struct 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
 115 void lpfc_vport_set_state(struct lpfc_vport *vport,
 116                           enum fc_vport_state new_state);
 117
 118 void lpfc_vport_reset_stat_data(struct lpfc_vport *);
 119 void lpfc_alloc_bucket(struct lpfc_vport *);
 120 void lpfc_free_bucket(struct lpfc_vport *);
 121
 122 #endif /* H_LPFC_VPORT */