drivers/s390/scsi/zfcp_fsf.h

   1 /*
   2  * This file is part of the zfcp device driver for
   3  * FCP adapters for IBM System z9 and zSeries.
   4  *
   5  * (C) Copyright IBM Corp. 2002, 2006
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2, or (at your option)
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #ifndef FSF_H
  23 #define FSF_H
  24
  25 #include <linux/pfn.h>
  26
  27 #define FSF_QTCB_CURRENT_VERSION                0x00000001
  28
  29 /* FSF commands */
  30 #define FSF_QTCB_FCP_CMND                       0x00000001
  31 #define FSF_QTCB_ABORT_FCP_CMND                 0x00000002
  32 #define FSF_QTCB_OPEN_PORT_WITH_DID             0x00000005
  33 #define FSF_QTCB_OPEN_LUN                       0x00000006
  34 #define FSF_QTCB_CLOSE_LUN                      0x00000007
  35 #define FSF_QTCB_CLOSE_PORT                     0x00000008
  36 #define FSF_QTCB_CLOSE_PHYSICAL_PORT            0x00000009
  37 #define FSF_QTCB_SEND_ELS                       0x0000000B
  38 #define FSF_QTCB_SEND_GENERIC                   0x0000000C
  39 #define FSF_QTCB_EXCHANGE_CONFIG_DATA           0x0000000D
  40 #define FSF_QTCB_EXCHANGE_PORT_DATA             0x0000000E
  41 #define FSF_QTCB_DOWNLOAD_CONTROL_FILE          0x00000012
  42 #define FSF_QTCB_UPLOAD_CONTROL_FILE            0x00000013
  43
  44 /* FSF QTCB types */
  45 #define FSF_IO_COMMAND                          0x00000001
  46 #define FSF_SUPPORT_COMMAND                     0x00000002
  47 #define FSF_CONFIG_COMMAND                      0x00000003
  48 #define FSF_PORT_COMMAND                        0x00000004
  49
  50 /* FSF control file upload/download operations' subtype and options */
  51 #define FSF_CFDC_OPERATION_SUBTYPE              0x00020001
  52 #define FSF_CFDC_OPTION_NORMAL_MODE             0x00000000
  53 #define FSF_CFDC_OPTION_FORCE                   0x00000001
  54 #define FSF_CFDC_OPTION_FULL_ACCESS             0x00000002
  55 #define FSF_CFDC_OPTION_RESTRICTED_ACCESS       0x00000004
  56
  57 /* FSF protocol states */
  58 #define FSF_PROT_GOOD                           0x00000001
  59 #define FSF_PROT_QTCB_VERSION_ERROR             0x00000010
  60 #define FSF_PROT_SEQ_NUMB_ERROR                 0x00000020
  61 #define FSF_PROT_UNSUPP_QTCB_TYPE               0x00000040
  62 #define FSF_PROT_HOST_CONNECTION_INITIALIZING   0x00000080
  63 #define FSF_PROT_FSF_STATUS_PRESENTED           0x00000100
  64 #define FSF_PROT_DUPLICATE_REQUEST_ID           0x00000200
  65 #define FSF_PROT_LINK_DOWN                      0x00000400
  66 #define FSF_PROT_REEST_QUEUE                    0x00000800
  67 #define FSF_PROT_ERROR_STATE                    0x01000000
  68
  69 /* FSF states */
  70 #define FSF_GOOD                                0x00000000
  71 #define FSF_PORT_ALREADY_OPEN                   0x00000001
  72 #define FSF_LUN_ALREADY_OPEN                    0x00000002
  73 #define FSF_PORT_HANDLE_NOT_VALID               0x00000003
  74 #define FSF_LUN_HANDLE_NOT_VALID                0x00000004
  75 #define FSF_HANDLE_MISMATCH                     0x00000005
  76 #define FSF_SERVICE_CLASS_NOT_SUPPORTED         0x00000006
  77 #define FSF_FCPLUN_NOT_VALID                    0x00000009
  78 #define FSF_ACCESS_DENIED                       0x00000010
  79 #define FSF_LUN_SHARING_VIOLATION               0x00000012
  80 #define FSF_FCP_COMMAND_DOES_NOT_EXIST          0x00000022
  81 #define FSF_DIRECTION_INDICATOR_NOT_VALID       0x00000030
  82 #define FSF_CMND_LENGTH_NOT_VALID               0x00000033
  83 #define FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED    0x00000040
  84 #define FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED     0x00000041
  85 #define FSF_ELS_COMMAND_REJECTED                0x00000050
  86 #define FSF_GENERIC_COMMAND_REJECTED            0x00000051
  87 #define FSF_OPERATION_PARTIALLY_SUCCESSFUL      0x00000052
  88 #define FSF_AUTHORIZATION_FAILURE               0x00000053
  89 #define FSF_CFDC_ERROR_DETECTED                 0x00000054
  90 #define FSF_CONTROL_FILE_UPDATE_ERROR           0x00000055
  91 #define FSF_CONTROL_FILE_TOO_LARGE              0x00000056
  92 #define FSF_ACCESS_CONFLICT_DETECTED            0x00000057
  93 #define FSF_CONFLICTS_OVERRULED                 0x00000058
  94 #define FSF_PORT_BOXED                          0x00000059
  95 #define FSF_LUN_BOXED                           0x0000005A
  96 #define FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE     0x0000005B
  97 #define FSF_PAYLOAD_SIZE_MISMATCH               0x00000060
  98 #define FSF_REQUEST_SIZE_TOO_LARGE              0x00000061
  99 #define FSF_RESPONSE_SIZE_TOO_LARGE             0x00000062
 100 #define FSF_SBAL_MISMATCH                       0x00000063
 101 #define FSF_OPEN_PORT_WITHOUT_PRLI              0x00000064
 102 #define FSF_ADAPTER_STATUS_AVAILABLE            0x000000AD
 103 #define FSF_FCP_RSP_AVAILABLE                   0x000000AF
 104 #define FSF_UNKNOWN_COMMAND                     0x000000E2
 105 #define FSF_UNKNOWN_OP_SUBTYPE                  0x000000E3
 106 #define FSF_INVALID_COMMAND_OPTION              0x000000E5
 107 /* #define FSF_ERROR                             0x000000FF  */
 108
 109 #define FSF_PROT_STATUS_QUAL_SIZE               16
 110 #define FSF_STATUS_QUALIFIER_SIZE               16
 111
 112 /* FSF status qualifier, recommendations */
 113 #define FSF_SQ_NO_RECOM                         0x00
 114 #define FSF_SQ_FCP_RSP_AVAILABLE                0x01
 115 #define FSF_SQ_RETRY_IF_POSSIBLE                0x02
 116 #define FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED       0x03
 117 #define FSF_SQ_INVOKE_LINK_TEST_PROCEDURE       0x04
 118 #define FSF_SQ_ULP_PROGRAMMING_ERROR            0x05
 119 #define FSF_SQ_COMMAND_ABORTED                  0x06
 120 #define FSF_SQ_NO_RETRY_POSSIBLE                0x07
 121
 122 /* FSF status qualifier for CFDC commands */
 123 #define FSF_SQ_CFDC_HARDENED_ON_SE              0x00000000
 124 #define FSF_SQ_CFDC_COULD_NOT_HARDEN_ON_SE      0x00000001
 125 #define FSF_SQ_CFDC_COULD_NOT_HARDEN_ON_SE2     0x00000002
 126 /* CFDC subtable codes */
 127 #define FSF_SQ_CFDC_SUBTABLE_OS                 0x0001
 128 #define FSF_SQ_CFDC_SUBTABLE_PORT_WWPN          0x0002
 129 #define FSF_SQ_CFDC_SUBTABLE_PORT_DID           0x0003
 130 #define FSF_SQ_CFDC_SUBTABLE_LUN                0x0004
 131
 132 /* FSF status qualifier (most significant 4 bytes), local link down */
 133 #define FSF_PSQ_LINK_NO_LIGHT                   0x00000004
 134 #define FSF_PSQ_LINK_WRAP_PLUG                  0x00000008
 135 #define FSF_PSQ_LINK_NO_FCP                     0x00000010
 136 #define FSF_PSQ_LINK_FIRMWARE_UPDATE            0x00000020
 137 #define FSF_PSQ_LINK_INVALID_WWPN               0x00000100
 138 #define FSF_PSQ_LINK_NO_NPIV_SUPPORT            0x00000200
 139 #define FSF_PSQ_LINK_NO_FCP_RESOURCES           0x00000400
 140 #define FSF_PSQ_LINK_NO_FABRIC_RESOURCES        0x00000800
 141 #define FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE        0x00001000
 142 #define FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED  0x00002000
 143 #define FSF_PSQ_LINK_MODE_TABLE_CURRUPTED       0x00004000
 144 #define FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT         0x00008000
 145
 146 /* payload size in status read buffer */
 147 #define FSF_STATUS_READ_PAYLOAD_SIZE            4032
 148
 149 /* number of status read buffers that should be sent by ULP */
 150 #define FSF_STATUS_READS_RECOM                  16
 151
 152 /* status types in status read buffer */
 153 #define FSF_STATUS_READ_PORT_CLOSED             0x00000001
 154 #define FSF_STATUS_READ_INCOMING_ELS            0x00000002
 155 #define FSF_STATUS_READ_SENSE_DATA_AVAIL        0x00000003
 156 #define FSF_STATUS_READ_BIT_ERROR_THRESHOLD     0x00000004
 157 #define FSF_STATUS_READ_LINK_DOWN               0x00000005
 158 #define FSF_STATUS_READ_LINK_UP                 0x00000006
 159 #define FSF_STATUS_READ_NOTIFICATION_LOST       0x00000009
 160 #define FSF_STATUS_READ_CFDC_UPDATED            0x0000000A
 161 #define FSF_STATUS_READ_CFDC_HARDENED           0x0000000B
 162 #define FSF_STATUS_READ_FEATURE_UPDATE_ALERT    0x0000000C
 163
 164 /* status subtypes in status read buffer */
 165 #define FSF_STATUS_READ_SUB_CLOSE_PHYS_PORT     0x00000001
 166 #define FSF_STATUS_READ_SUB_ERROR_PORT          0x00000002
 167
 168 /* status subtypes for link down */
 169 #define FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK    0x00000000
 170 #define FSF_STATUS_READ_SUB_FDISC_FAILED        0x00000001
 171 #define FSF_STATUS_READ_SUB_FIRMWARE_UPDATE     0x00000002
 172
 173 /* status subtypes for unsolicited status notification lost */
 174 #define FSF_STATUS_READ_SUB_INCOMING_ELS        0x00000001
 175 #define FSF_STATUS_READ_SUB_SENSE_DATA          0x00000002
 176 #define FSF_STATUS_READ_SUB_LINK_STATUS         0x00000004
 177 #define FSF_STATUS_READ_SUB_PORT_CLOSED         0x00000008
 178 #define FSF_STATUS_READ_SUB_BIT_ERROR_THRESHOLD 0x00000010
 179 #define FSF_STATUS_READ_SUB_ACT_UPDATED         0x00000020
 180 #define FSF_STATUS_READ_SUB_ACT_HARDENED        0x00000040
 181 #define FSF_STATUS_READ_SUB_FEATURE_UPDATE_ALERT 0x00000080
 182
 183 /* status subtypes for CFDC */
 184 #define FSF_STATUS_READ_SUB_CFDC_HARDENED_ON_SE 0x00000002
 185 #define FSF_STATUS_READ_SUB_CFDC_HARDENED_ON_SE2 0x0000000F
 186
 187 /* topologie that is detected by the adapter */
 188 #define FSF_TOPO_ERROR                          0x00000000
 189 #define FSF_TOPO_P2P                            0x00000001
 190 #define FSF_TOPO_FABRIC                         0x00000002
 191 #define FSF_TOPO_AL                             0x00000003
 192
 193 /* data direction for FCP commands */
 194 #define FSF_DATADIR_WRITE                       0x00000001
 195 #define FSF_DATADIR_READ                        0x00000002
 196 #define FSF_DATADIR_READ_WRITE                  0x00000003
 197 #define FSF_DATADIR_CMND                        0x00000004
 198
 199 /* fc service class */
 200 #define FSF_CLASS_1                             0x00000001
 201 #define FSF_CLASS_2                             0x00000002
 202 #define FSF_CLASS_3                             0x00000003
 203
 204 /* SBAL chaining */
 205 #define FSF_MAX_SBALS_PER_REQ                   36
 206 #define FSF_MAX_SBALS_PER_ELS_REQ               2
 207
 208 /* logging space behind QTCB */
 209 #define FSF_QTCB_LOG_SIZE                       1024
 210
 211 /* channel features */
 212 #define FSF_FEATURE_CFDC                        0x00000002
 213 #define FSF_FEATURE_LUN_SHARING                 0x00000004
 214 #define FSF_FEATURE_NOTIFICATION_LOST           0x00000008
 215 #define FSF_FEATURE_HBAAPI_MANAGEMENT           0x00000010
 216 #define FSF_FEATURE_ELS_CT_CHAINED_SBALS        0x00000020
 217 #define FSF_FEATURE_UPDATE_ALERT                0x00000100
 218 #define FSF_FEATURE_MEASUREMENT_DATA            0x00000200
 219
 220 /* host connection features */
 221 #define FSF_FEATURE_NPIV_MODE                   0x00000001
 222 #define FSF_FEATURE_VM_ASSIGNED_WWPN            0x00000002
 223
 224 /* option */
 225 #define FSF_OPEN_LUN_SUPPRESS_BOXING            0x00000001
 226 #define FSF_OPEN_LUN_REPLICATE_SENSE            0x00000002
 227
 228 /* adapter types */
 229 #define FSF_ADAPTER_TYPE_FICON                  0x00000001
 230 #define FSF_ADAPTER_TYPE_FICON_EXPRESS          0x00000002
 231
 232 /* port types */
 233 #define FSF_HBA_PORTTYPE_UNKNOWN                0x00000001
 234 #define FSF_HBA_PORTTYPE_NOTPRESENT             0x00000003
 235 #define FSF_HBA_PORTTYPE_NPORT                  0x00000005
 236 #define FSF_HBA_PORTTYPE_PTP                    0x00000021
 237 /* following are not defined and used by FSF Spec
 238    but are additionally defined by FC-HBA */
 239 #define FSF_HBA_PORTTYPE_OTHER                  0x00000002
 240 #define FSF_HBA_PORTTYPE_NOTPRESENT             0x00000003
 241 #define FSF_HBA_PORTTYPE_NLPORT                 0x00000006
 242 #define FSF_HBA_PORTTYPE_FLPORT                 0x00000007
 243 #define FSF_HBA_PORTTYPE_FPORT                  0x00000008
 244 #define FSF_HBA_PORTTYPE_LPORT                  0x00000020
 245
 246 /* port states */
 247 #define FSF_HBA_PORTSTATE_UNKNOWN               0x00000001
 248 #define FSF_HBA_PORTSTATE_ONLINE                0x00000002
 249 #define FSF_HBA_PORTSTATE_OFFLINE               0x00000003
 250 #define FSF_HBA_PORTSTATE_LINKDOWN              0x00000006
 251 #define FSF_HBA_PORTSTATE_ERROR                 0x00000007
 252
 253 /* IO states of adapter */
 254 #define FSF_IOSTAT_NPORT_RJT                    0x00000004
 255 #define FSF_IOSTAT_FABRIC_RJT                   0x00000005
 256 #define FSF_IOSTAT_LS_RJT                       0x00000009
 257
 258 /* open LUN access flags*/
 259 #define FSF_UNIT_ACCESS_OPEN_LUN_ALLOWED        0x01000000
 260 #define FSF_UNIT_ACCESS_EXCLUSIVE               0x02000000
 261 #define FSF_UNIT_ACCESS_OUTBOUND_TRANSFER       0x10000000
 262
 263 /* FSF interface for CFDC */
 264 #define ZFCP_CFDC_MAX_SIZE              127 * 1024
 265 #define ZFCP_CFDC_PAGES                 PFN_UP(ZFCP_CFDC_MAX_SIZE)
 266
 267 struct zfcp_fsf_cfdc {
 268         struct scatterlist sg[ZFCP_CFDC_PAGES];
 269         u32 command;
 270         u32 option;
 271 };
 272
 273 struct fsf_queue_designator {
 274         u8  cssid;
 275         u8  chpid;
 276         u8  hla;
 277         u8  ua;
 278         u32 res1;
 279 } __attribute__ ((packed));
 280
 281 struct fsf_port_closed_payload {
 282         struct fsf_queue_designator queue_designator;
 283         u32                         port_handle;
 284 } __attribute__ ((packed));
 285
 286 struct fsf_bit_error_payload {
 287         u32 res1;
 288         u32 link_failure_error_count;
 289         u32 loss_of_sync_error_count;
 290         u32 loss_of_signal_error_count;
 291         u32 primitive_sequence_error_count;
 292         u32 invalid_transmission_word_error_count;
 293         u32 crc_error_count;
 294         u32 primitive_sequence_event_timeout_count;
 295         u32 elastic_buffer_overrun_error_count;
 296         u32 fcal_arbitration_timeout_count;
 297         u32 advertised_receive_b2b_credit;
 298         u32 current_receive_b2b_credit;
 299         u32 advertised_transmit_b2b_credit;
 300         u32 current_transmit_b2b_credit;
 301 } __attribute__ ((packed));
 302
 303 struct fsf_status_read_buffer {
 304         u32 status_type;
 305         u32 status_subtype;
 306         u32 length;
 307         u32 res1;
 308         struct fsf_queue_designator queue_designator;
 309         u32 d_id;
 310         u32 class;
 311         u64 fcp_lun;
 312         u8  res3[24];
 313         u8  payload[FSF_STATUS_READ_PAYLOAD_SIZE];
 314 } __attribute__ ((packed));
 315
 316 struct fsf_qual_version_error {
 317         u32 fsf_version;
 318         u32 res1[3];
 319 } __attribute__ ((packed));
 320
 321 struct fsf_qual_sequence_error {
 322         u32 exp_req_seq_no;
 323         u32 res1[3];
 324 } __attribute__ ((packed));
 325
 326 struct fsf_link_down_info {
 327         u32 error_code;
 328         u32 res1;
 329         u8 res2[2];
 330         u8 primary_status;
 331         u8 ioerr_code;
 332         u8 action_code;
 333         u8 reason_code;
 334         u8 explanation_code;
 335         u8 vendor_specific_code;
 336 } __attribute__ ((packed));
 337
 338 struct fsf_qual_latency_info {
 339         u32 channel_lat;
 340         u32 fabric_lat;
 341         u8 res1[8];
 342 } __attribute__ ((packed));
 343
 344 union fsf_prot_status_qual {
 345         u64 doubleword[FSF_PROT_STATUS_QUAL_SIZE / sizeof(u64)];
 346         struct fsf_qual_version_error   version_error;
 347         struct fsf_qual_sequence_error  sequence_error;
 348         struct fsf_link_down_info link_down_info;
 349         struct fsf_qual_latency_info latency_info;
 350 } __attribute__ ((packed));
 351
 352 struct fsf_qtcb_prefix {
 353         u64 req_id;
 354         u32 qtcb_version;
 355         u32 ulp_info;
 356         u32 qtcb_type;
 357         u32 req_seq_no;
 358         u32 prot_status;
 359         union fsf_prot_status_qual prot_status_qual;
 360         u8  res1[20];
 361 } __attribute__ ((packed));
 362
 363 struct fsf_statistics_info {
 364         u64 input_req;
 365         u64 output_req;
 366         u64 control_req;
 367         u64 input_mb;
 368         u64 output_mb;
 369         u64 seconds_act;
 370 } __attribute__ ((packed));
 371
 372 union fsf_status_qual {
 373         u8  byte[FSF_STATUS_QUALIFIER_SIZE];
 374         u16 halfword[FSF_STATUS_QUALIFIER_SIZE / sizeof (u16)];
 375         u32 word[FSF_STATUS_QUALIFIER_SIZE / sizeof (u32)];
 376         u64 doubleword[FSF_STATUS_QUALIFIER_SIZE / sizeof(u64)];
 377         struct fsf_queue_designator fsf_queue_designator;
 378         struct fsf_link_down_info link_down_info;
 379 } __attribute__ ((packed));
 380
 381 struct fsf_qtcb_header {
 382         u64 req_handle;
 383         u32 fsf_command;
 384         u32 res1;
 385         u32 port_handle;
 386         u32 lun_handle;
 387         u32 res2;
 388         u32 fsf_status;
 389         union fsf_status_qual fsf_status_qual;
 390         u8  res3[28];
 391         u16 log_start;
 392         u16 log_length;
 393         u8  res4[16];
 394 } __attribute__ ((packed));
 395
 396 struct fsf_nport_serv_param {
 397         u8  common_serv_param[16];
 398         u64 wwpn;
 399         u64 wwnn;
 400         u8  class1_serv_param[16];
 401         u8  class2_serv_param[16];
 402         u8  class3_serv_param[16];
 403         u8  class4_serv_param[16];
 404         u8  vendor_version_level[16];
 405 } __attribute__ ((packed));
 406
 407 struct fsf_plogi {
 408         u32    code;
 409         struct fsf_nport_serv_param serv_param;
 410 } __attribute__ ((packed));
 411
 412 #define FSF_FCP_CMND_SIZE       288
 413 #define FSF_FCP_RSP_SIZE        128
 414
 415 struct fsf_qtcb_bottom_io {
 416         u32 data_direction;
 417         u32 service_class;
 418         u8  res1[8];
 419         u32 fcp_cmnd_length;
 420         u8  res2[12];
 421         u8  fcp_cmnd[FSF_FCP_CMND_SIZE];
 422         u8  fcp_rsp[FSF_FCP_RSP_SIZE];
 423         u8  res3[64];
 424 } __attribute__ ((packed));
 425
 426 struct fsf_qtcb_bottom_support {
 427         u32 operation_subtype;
 428         u8  res1[12];
 429         u32 d_id;
 430         u32 option;
 431         u64 fcp_lun;
 432         u64 res2;
 433         u64 req_handle;
 434         u32 service_class;
 435         u8  res3[3];
 436         u8  timeout;
 437         u32 lun_access_info;
 438         u8  res4[180];
 439         u32 els1_length;
 440         u32 els2_length;
 441         u32 req_buf_length;
 442         u32 resp_buf_length;
 443         u8  els[256];
 444 } __attribute__ ((packed));
 445
 446 struct fsf_qtcb_bottom_config {
 447         u32 lic_version;
 448         u32 feature_selection;
 449         u32 high_qtcb_version;
 450         u32 low_qtcb_version;
 451         u32 max_qtcb_size;
 452         u32 max_data_transfer_size;
 453         u32 adapter_features;
 454         u32 connection_features;
 455         u32 fc_topology;
 456         u32 fc_link_speed;
 457         u32 adapter_type;
 458         u32 peer_d_id;
 459         u8 res1[2];
 460         u16 timer_interval;
 461         u8 res2[8];
 462         u32 s_id;
 463         struct fsf_nport_serv_param nport_serv_param;
 464         u8 reserved_nport_serv_param[16];
 465         u8 res3[8];
 466         u32 adapter_ports;
 467         u32 hardware_version;
 468         u8 serial_number[32];
 469         struct fsf_nport_serv_param plogi_payload;
 470         struct fsf_statistics_info stat_info;
 471         u8 res4[112];
 472 } __attribute__ ((packed));
 473
 474 struct fsf_qtcb_bottom_port {
 475         u64 wwpn;
 476         u32 fc_port_id;
 477         u32 port_type;
 478         u32 port_state;
 479         u32 class_of_service;   /* should be 0x00000006 for class 2 and 3 */
 480         u8 supported_fc4_types[32]; /* should be 0x00000100 for scsi fcp */
 481         u8 active_fc4_types[32];
 482         u32 supported_speed;    /* 0x0001 for 1 GBit/s or 0x0002 for 2 GBit/s */
 483         u32 maximum_frame_size; /* fixed value of 2112 */
 484         u64 seconds_since_last_reset;
 485         u64 tx_frames;
 486         u64 tx_words;
 487         u64 rx_frames;
 488         u64 rx_words;
 489         u64 lip;                /* 0 */
 490         u64 nos;                /* currently 0 */
 491         u64 error_frames;       /* currently 0 */
 492         u64 dumped_frames;      /* currently 0 */
 493         u64 link_failure;
 494         u64 loss_of_sync;
 495         u64 loss_of_signal;
 496         u64 psp_error_counts;
 497         u64 invalid_tx_words;
 498         u64 invalid_crcs;
 499         u64 input_requests;
 500         u64 output_requests;
 501         u64 control_requests;
 502         u64 input_mb;           /* where 1 MByte == 1.000.000 Bytes */
 503         u64 output_mb;          /* where 1 MByte == 1.000.000 Bytes */
 504         u8 cp_util;
 505         u8 cb_util;
 506         u8 a_util;
 507         u8 res2[253];
 508 } __attribute__ ((packed));
 509
 510 union fsf_qtcb_bottom {
 511         struct fsf_qtcb_bottom_io      io;
 512         struct fsf_qtcb_bottom_support support;
 513         struct fsf_qtcb_bottom_config  config;
 514         struct fsf_qtcb_bottom_port port;
 515 };
 516
 517 struct fsf_qtcb {
 518         struct fsf_qtcb_prefix prefix;
 519         struct fsf_qtcb_header header;
 520         union  fsf_qtcb_bottom bottom;
 521         u8 log[FSF_QTCB_LOG_SIZE];
 522 } __attribute__ ((packed));
 523
 524 #endif                          /* FSF_H */