LXR linux/include/scsi/fc/fc

   1/*
   2 * Copyright(c) 2007 Intel Corporation. All rights reserved.
   3 *
   4 * This program is free software; you can redistribute it and/or modify it
   5 * under the terms and conditions of the GNU General Public License,
   6 * version 2, as published by the Free Software Foundation.
   7 *
   8 * This program is distributed in the hope it will be useful, but WITHOUT
   9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11 * more details.
  12 *
  13 * You should have received a copy of the GNU General Public License along with
  14 * this program; if not, write to the Free Software Foundation, Inc.,
  15 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  16 *
  17 * Maintained at www.Open-FCoE.org
  18 */
  19
  20#ifndef _FC_NS_H_
  21#define _FC_NS_H_
  22
  23/*
  24 * Fibre Channel Services - Name Service (dNS)
  25 * From T11.org FC-GS-2 Rev 5.3 November 1998.
  26 */
  27
  28/*
  29 * Common-transport sub-type for Name Server.
  30 */
  31#define FC_NS_SUBTYPE       2   /* fs_ct_hdr.ct_fs_subtype */
  32
  33/*
  34 * Name server Requests.
  35 * Note:  this is an incomplete list, some unused requests are omitted.
  36 */
  37enum fc_ns_req {
  38        FC_NS_GA_NXT =  0x0100,         /* get all next */
  39        FC_NS_GI_A =    0x0101,         /* get identifiers - scope */
  40        FC_NS_GPN_ID =  0x0112,         /* get port name by ID */
  41        FC_NS_GNN_ID =  0x0113,         /* get node name by ID */
  42        FC_NS_GID_PN =  0x0121,         /* get ID for port name */
  43        FC_NS_GID_NN =  0x0131,         /* get IDs for node name */
  44        FC_NS_GID_FT =  0x0171,         /* get IDs by FC4 type */
  45        FC_NS_GPN_FT =  0x0172,         /* get port names by FC4 type */
  46        FC_NS_GID_PT =  0x01a1,         /* get IDs by port type */
  47        FC_NS_RFT_ID =  0x0217,         /* reg FC4 type for ID */
  48        FC_NS_RPN_ID =  0x0212,         /* reg port name for ID */
  49        FC_NS_RNN_ID =  0x0213,         /* reg node name for ID */
  50};
  51
  52/*
  53 * Port type values.
  54 */
  55enum fc_ns_pt {
  56        FC_NS_UNID_PORT = 0x00, /* unidentified */
  57        FC_NS_N_PORT =  0x01,   /* N port */
  58        FC_NS_NL_PORT = 0x02,   /* NL port */
  59        FC_NS_FNL_PORT = 0x03,  /* F/NL port */
  60        FC_NS_NX_PORT = 0x7f,   /* Nx port */
  61        FC_NS_F_PORT =  0x81,   /* F port */
  62        FC_NS_FL_PORT = 0x82,   /* FL port */
  63        FC_NS_E_PORT =  0x84,   /* E port */
  64        FC_NS_B_PORT =  0x85,   /* B port */
  65};
  66
  67/*
  68 * Port type object.
  69 */
  70struct fc_ns_pt_obj {
  71        __u8            pt_type;
  72};
  73
  74/*
  75 * Port ID object
  76 */
  77struct fc_ns_fid {
  78        __u8            fp_flags;       /* flags for responses only */
  79        __u8            fp_fid[3];
  80};
  81
  82/*
  83 * fp_flags in port ID object, for responses only.
  84 */
  85#define FC_NS_FID_LAST  0x80            /* last object */
  86
  87/*
  88 * FC4-types object.
  89 */
  90#define FC_NS_TYPES     256     /* number of possible FC-4 types */
  91#define FC_NS_BPW       32      /* bits per word in bitmap */
  92
  93struct fc_ns_fts {
  94        __be32  ff_type_map[FC_NS_TYPES / FC_NS_BPW]; /* bitmap of FC-4 types */
  95};
  96
  97/*
  98 * GID_PT request.
  99 */
 100struct fc_ns_gid_pt {
 101        __u8            fn_pt_type;
 102        __u8            fn_domain_id_scope;
 103        __u8            fn_area_id_scope;
 104        __u8            fn_resvd;
 105};
 106
 107/*
 108 * GID_FT or GPN_FT request.
 109 */
 110struct fc_ns_gid_ft {
 111        __u8            fn_resvd;
 112        __u8            fn_domain_id_scope;
 113        __u8            fn_area_id_scope;
 114        __u8            fn_fc4_type;
 115};
 116
 117/*
 118 * GPN_FT response.
 119 */
 120struct fc_gpn_ft_resp {
 121        __u8            fp_flags;       /* see fp_flags definitions above */
 122        __u8            fp_fid[3];      /* port ID */
 123        __be32          fp_resvd;
 124        __be64          fp_wwpn;        /* port name */
 125};
 126
 127/*
 128 * GID_PN request
 129 */
 130struct fc_ns_gid_pn {
 131        __be64     fn_wwpn;    /* port name */
 132};
 133
 134/*
 135 * GID_PN response
 136 */
 137struct fc_gid_pn_resp {
 138        __u8      fp_resvd;
 139        __u8      fp_fid[3];     /* port ID */
 140};
 141
 142/*
 143 * RFT_ID request - register FC-4 types for ID.
 144 */
 145struct fc_ns_rft_id {
 146        struct fc_ns_fid fr_fid;        /* port ID object */
 147        struct fc_ns_fts fr_fts;        /* FC-4 types object */
 148};
 149
 150/*
 151 * RPN_ID request - register port name for ID.
 152 * RNN_ID request - register node name for ID.
 153 */
 154struct fc_ns_rn_id {
 155        struct fc_ns_fid fr_fid;        /* port ID object */
 156        __be64          fr_wwn;         /* node name or port name */
 157} __attribute__((__packed__));
 158
 159#endif /* _FC_NS_H_ */
 160