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   1 /* fc.h: Definitions for Fibre Channel Physical and Signaling Interface.
   2  *
   3  * Copyright (C) 1996-1997,1999 Jakub Jelinek (jj@ultra.linux.cz)
   4  *
   5  * Sources:
   6  *      Fibre Channel Physical & Signaling Interface (FC-PH), dpANS, 1994
   7  *      dpANS Fibre Channel Protocol for SCSI (X3.269-199X), Rev. 012, 1995
   8  */
   9
  10 #ifndef __FC_H
  11 #define __FC_H
  12
  13 /* World Wide Name */
  14 #define NAAID_IEEE              1
  15 #define NAAID_IEEE_EXT          2
  16 #define NAAID_LOCAL             3
  17 #define NAAID_IP                4
  18 #define NAAID_IEEE_REG          5
  19 #define NAAID_IEEE_REG_EXT      6
  20 #define NAAID_CCITT             12
  21 #define NAAID_CCITT_GRP         14
  22
  23 /* This is NAAID_IEEE_EXT scheme */
  24 typedef struct {
  25         u32     naaid:4;
  26         u32     nportid:12;
  27         u32     hi:16;
  28         u32     lo;
  29 } fc_wwn;
  30
  31 /* Frame header for FC-PH frames */
  32
  33 /* r_ctl field */
  34 #define R_CTL_DEVICE_DATA       0x00    /* FC4 Device_Data frame */
  35 #define R_CTL_EXTENDED_SVC      0x20    /* Extended Link_Data frame */
  36 #define R_CTL_FC4_SVC           0x30    /* FC4 Link_Data frame */
  37 #define R_CTL_VIDEO             0x40    /* Video_Data frame */
  38 #define R_CTL_BASIC_SVC         0x80    /* Basic Link_Data frame */
  39 #define R_CTL_LINK_CTL          0xc0    /* Link_Control frame */
  40 /* FC4 Device_Data frames */
  41 #define R_CTL_UNCATEGORIZED     0x00
  42 #define R_CTL_SOLICITED_DATA    0x01
  43 #define R_CTL_UNSOL_CONTROL     0x02
  44 #define R_CTL_SOLICITED_CONTROL 0x03
  45 #define R_CTL_UNSOL_DATA        0x04
  46 #define R_CTL_XFER_RDY          0x05
  47 #define R_CTL_COMMAND           0x06
  48 #define R_CTL_STATUS            0x07
  49 /* Basic Link_Data frames */
  50 #define R_CTL_LS_NOP            0x80
  51 #define R_CTL_LS_ABTS           0x81
  52 #define R_CTL_LS_RMC            0x82
  53 #define R_CTL_LS_BA_ACC         0x84
  54 #define R_CTL_LS_BA_RJT         0x85
  55 /* Extended Link_Data frames */
  56 #define R_CTL_ELS_REQ           0x22
  57 #define R_CTL_ELS_RSP           0x23
  58 /* Link_Control frames */
  59 #define R_CTL_ACK_1             0xc0
  60 #define R_CTL_ACK_N             0xc1
  61 #define R_CTL_P_RJT             0xc2
  62 #define R_CTL_F_RJT             0xc3
  63 #define R_CTL_P_BSY             0xc4
  64 #define R_CTL_F_BSY_DF          0xc5
  65 #define R_CTL_F_BSY_LC          0xc6
  66 #define R_CTL_LCR               0xc7
  67
  68 /* type field */
  69 #define TYPE_BASIC_LS           0x00
  70 #define TYPE_EXTENDED_LS        0x01
  71 #define TYPE_IS8802             0x04
  72 #define TYPE_IS8802_SNAP        0x05
  73 #define TYPE_SCSI_FCP           0x08
  74 #define TYPE_SCSI_GPP           0x09
  75 #define TYPE_HIPP_FP            0x0a
  76 #define TYPE_IPI3_MASTER        0x11
  77 #define TYPE_IPI3_SLAVE         0x12
  78 #define TYPE_IPI3_PEER          0x13
  79
  80 /* f_ctl field */
  81 #define F_CTL_FILL_BYTES        0x000003
  82 #define F_CTL_XCHG_REASSEMBLE   0x000004
  83 #define F_CTL_RO_PRESENT        0x000008
  84 #define F_CTL_ABORT_SEQ         0x000030
  85 #define F_CTL_CONTINUE_SEQ      0x0000c0
  86 #define F_CTL_INVALIDATE_XID    0x004000
  87 #define F_CTL_XID_REASSIGNED    0x008000
  88 #define F_CTL_SEQ_INITIATIVE    0x010000
  89 #define F_CTL_CHAINED_SEQ       0x020000
  90 #define F_CTL_END_CONNECT       0x040000
  91 #define F_CTL_END_SEQ           0x080000
  92 #define F_CTL_LAST_SEQ          0x100000
  93 #define F_CTL_FIRST_SEQ         0x200000
  94 #define F_CTL_SEQ_CONTEXT       0x400000
  95 #define F_CTL_XCHG_CONTEXT      0x800000
  96
  97 typedef struct {
  98         u32     r_ctl:8,        did:24;
  99         u32     xxx1:8,         sid:24;
 100         u32     type:8,         f_ctl:24;
 101         u32     seq_id:8,       df_ctl:8,       seq_cnt:16;
 102         u16     ox_id,          rx_id;
 103         u32     param;
 104 } fc_hdr;
 105 /* The following are ugly macros to make setup of this structure faster */
 106 #define FILL_FCHDR_RCTL_DID(fch, r_ctl, did) *(u32 *)(fch) = ((r_ctl) << 24) | (did);
 107 #define FILL_FCHDR_SID(fch, sid) *((u32 *)(fch)+1) = (sid);
 108 #define FILL_FCHDR_TYPE_FCTL(fch, type, f_ctl) *((u32 *)(fch)+2) = ((type) << 24) | (f_ctl);
 109 #define FILL_FCHDR_SEQ_DF_SEQ(fch, seq_id, df_ctl, seq_cnt) *((u32 *)(fch)+3) = ((seq_id) << 24) | ((df_ctl) << 16) | (seq_cnt);
 110 #define FILL_FCHDR_OXRX(fch, ox_id, rx_id) *((u32 *)(fch)+4) = ((ox_id) << 16) | (rx_id);
 111
 112 /* Well known addresses */
 113 #define FS_GENERAL_MULTICAST    0xfffff7
 114 #define FS_WELL_KNOWN_MULTICAST 0xfffff8
 115 #define FS_HUNT_GROUP           0xfffff9
 116 #define FS_MANAGEMENT_SERVER    0xfffffa
 117 #define FS_TIME_SERVER          0xfffffb
 118 #define FS_NAME_SERVER          0xfffffc
 119 #define FS_FABRIC_CONTROLLER    0xfffffd
 120 #define FS_FABRIC_F_PORT        0xfffffe
 121 #define FS_BROADCAST            0xffffff
 122
 123 /* Reject frames */
 124 /* The param field should be cast to this structure */
 125 typedef struct {
 126         u8      action;
 127         u8      reason;
 128         u8      xxx;
 129         u8      vendor_unique;
 130 } rjt_param;
 131
 132 /* Reject action codes */
 133 #define RJT_RETRY                       0x01
 134 #define RJT_NONRETRY                    0x02
 135
 136 /* Reject reason codes */
 137 #define RJT_INVALID_DID                 0x01
 138 #define RJT_INVALID_SID                 0x02
 139 #define RJT_NPORT_NOT_AVAIL_TEMP        0x03
 140 #define RJT_NPORT_NOT_AVAIL_PERM        0x04
 141 #define RJT_CLASS_NOT_SUPPORTED         0x05
 142 #define RJT_DELIMITER_ERROR             0x06
 143 #define RJT_TYPE_NOT_SUPPORTED          0x07
 144 #define RJT_INVALID_LINK_CONTROL        0x08
 145 #define RJT_INVALID_R_CTL               0x09
 146 #define RJT_INVALID_F_CTL               0x0a
 147 #define RJT_INVALID_OX_ID               0x0b
 148 #define RJT_INVALID_RX_ID               0x0c
 149 #define RJT_INVALID_SEQ_ID              0x0d
 150 #define RJT_INVALID_DF_CTL              0x0e
 151 #define RJT_INVALID_SEQ_CNT             0x0f
 152 #define RJT_INVALID_PARAMETER           0x10
 153 #define RJT_EXCHANGE_ERROR              0x11
 154 #define RJT_PROTOCOL_ERROR              0x12
 155 #define RJT_INCORRECT_LENGTH            0x13
 156 #define RJT_UNEXPECTED_ACK              0x14
 157 #define RJT_UNEXPECTED_LINK_RESP        0x15
 158 #define RJT_LOGIN_REQUIRED              0x16
 159 #define RJT_EXCESSIVE_SEQUENCES         0x17
 160 #define RJT_CANT_ESTABLISH_EXCHANGE     0x18
 161 #define RJT_SECURITY_NOT_SUPPORTED      0x19
 162 #define RJT_FABRIC_NA                   0x1a
 163 #define RJT_VENDOR_UNIQUE               0xff
 164
 165
 166 #define SP_F_PORT_LOGIN                 0x10
 167
 168 /* Extended SVC commands */
 169 #define LS_RJT                  0x01000000
 170 #define LS_ACC                  0x02000000
 171 #define LS_PRLI_ACC             0x02100014
 172 #define LS_PLOGI                0x03000000
 173 #define LS_FLOGI                0x04000000
 174 #define LS_LOGO                 0x05000000
 175 #define LS_ABTX                 0x06000000
 176 #define LS_RCS                  0x07000000
 177 #define LS_RES                  0x08000000
 178 #define LS_RSS                  0x09000000
 179 #define LS_RSI                  0x0a000000
 180 #define LS_ESTS                 0x0b000000
 181 #define LS_ESTC                 0x0c000000
 182 #define LS_ADVC                 0x0d000000
 183 #define LS_RTV                  0x0e000000
 184 #define LS_RLS                  0x0f000000
 185 #define LS_ECHO                 0x10000000
 186 #define LS_TEST                 0x11000000
 187 #define LS_RRQ                  0x12000000
 188 #define LS_IDENT                0x20000000
 189 #define LS_PRLI                 0x20100014
 190 #define LS_DISPLAY              0x21000000
 191 #define LS_PRLO                 0x21100014
 192 #define LS_PDISC                0x50000000
 193 #define LS_ADISC                0x52000000
 194
 195 typedef struct {
 196         u8      fcph_hi, fcph_lo;
 197         u16     buf2buf_credit;
 198         u8      common_features;
 199         u8      xxx1;
 200         u16     buf2buf_size;
 201         u8      xxx2;
 202         u8      total_concurrent;
 203         u16     off_by_info;
 204         u32     e_d_tov;
 205 } common_svc_parm;
 206
 207 typedef struct {
 208         u16     serv_opts;
 209         u16     initiator_ctl;
 210         u16     rcpt_ctl;
 211         u16     recv_size;
 212         u8      xxx1;
 213         u8      concurrent_seqs;
 214         u16     end2end_credit;
 215         u16     open_seqs_per_xchg;
 216         u16     xxx2;
 217 } svc_parm;
 218
 219 /* Login */
 220 typedef struct {
 221         u32             code;
 222         common_svc_parm common;
 223         fc_wwn          nport_wwn;
 224         fc_wwn          node_wwn;
 225         svc_parm        class1;
 226         svc_parm        class2;
 227         svc_parm        class3;
 228 } logi;
 229
 230 #endif /* !(__FC_H) */