include/scsi/fc/fc_ns.h

   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  */
  37 enum 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  */
  55 enum 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  */
  70 struct fc_ns_pt_obj {
  71         __u8            pt_type;
  72 };
  73
  74 /*
  75  * Port ID object
  76  */
  77 struct 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
  93 struct 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  */
 100 struct 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  */
 110 struct 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  */
 120 struct 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  */
 130 struct fc_ns_gid_pn {
 131         __be64     fn_wwpn;    /* port name */
 132 };
 133
 134 /*
 135  * GID_PN response
 136  */
 137 struct 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  */
 145 struct 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  */
 154 struct 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_ */