Pileus Git - ~andy/linux/blob - drivers/s390/scsi/zfcp_fsf.h

   1 /*
   2  *
   3  * linux/drivers/s390/scsi/zfcp_fsf.h
   4  *
   5  * FCP adapter driver for IBM eServer zSeries
   6  *
   7  * (C) Copyright IBM Corp. 2002, 2004
   8  *
   9  * Author(s): Martin Peschke <mpeschke@de.ibm.com>
  10  *            Raimund Schroeder <raimund.schroeder@de.ibm.com>
  11  *            Aron Zeh
  12  *            Wolfgang Taphorn
  13  *            Stefan Bader <stefan.bader@de.ibm.com>
  14  *            Heiko Carstens <heiko.carstens@de.ibm.com>
  15  *            Andreas Herrmann <aherrman@de.ibm.com>
  16  *            Volker Sameske <sameske@de.ibm.com>
  17  *
  18  * This program is free software; you can redistribute it and/or modify
  19  * it under the terms of the GNU General Public License as published by
  20  * the Free Software Foundation; either version 2, or (at your option)
  21  * any later version.
  22  *
  23  * This program is distributed in the hope that it will be useful,
  24  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  25  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  26  * GNU General Public License for more details.
  27  *
  28  * You should have received a copy of the GNU General Public License
  29  * along with this program; if not, write to the Free Software
  30  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  31  */
  32
  33 #ifndef FSF_H
  34 #define FSF_H
  35
  36 #define FSF_QTCB_VERSION1                       0x00000001
  37 #define FSF_QTCB_CURRENT_VERSION                FSF_QTCB_VERSION1
  38
  39 /* FSF commands */
  40 #define FSF_QTCB_FCP_CMND                       0x00000001
  41 #define FSF_QTCB_ABORT_FCP_CMND                 0x00000002
  42 #define FSF_QTCB_OPEN_PORT_WITH_DID             0x00000005
  43 #define FSF_QTCB_OPEN_LUN                       0x00000006
  44 #define FSF_QTCB_CLOSE_LUN                      0x00000007
  45 #define FSF_QTCB_CLOSE_PORT                     0x00000008
  46 #define FSF_QTCB_CLOSE_PHYSICAL_PORT            0x00000009
  47 #define FSF_QTCB_SEND_ELS                       0x0000000B
  48 #define FSF_QTCB_SEND_GENERIC                   0x0000000C
  49 #define FSF_QTCB_EXCHANGE_CONFIG_DATA           0x0000000D
  50 #define FSF_QTCB_EXCHANGE_PORT_DATA             0x0000000E
  51 #define FSF_QTCB_DOWNLOAD_CONTROL_FILE          0x00000012
  52 #define FSF_QTCB_UPLOAD_CONTROL_FILE            0x00000013
  53
  54 /* FSF QTCB types */
  55 #define FSF_IO_COMMAND                          0x00000001
  56 #define FSF_SUPPORT_COMMAND                     0x00000002
  57 #define FSF_CONFIG_COMMAND                      0x00000003
  58 #define FSF_PORT_COMMAND                        0x00000004
  59
  60 /* FSF control file upload/download operations' subtype and options */
  61 #define FSF_CFDC_OPERATION_SUBTYPE              0x00020001
  62 #define FSF_CFDC_OPTION_NORMAL_MODE             0x00000000
  63 #define FSF_CFDC_OPTION_FORCE                   0x00000001
  64 #define FSF_CFDC_OPTION_FULL_ACCESS             0x00000002
  65 #define FSF_CFDC_OPTION_RESTRICTED_ACCESS       0x00000004
  66
  67 /* FSF protocol stati */
  68 #define FSF_PROT_GOOD                           0x00000001
  69 #define FSF_PROT_QTCB_VERSION_ERROR             0x00000010
  70 #define FSF_PROT_SEQ_NUMB_ERROR                 0x00000020
  71 #define FSF_PROT_UNSUPP_QTCB_TYPE               0x00000040
  72 #define FSF_PROT_HOST_CONNECTION_INITIALIZING   0x00000080
  73 #define FSF_PROT_FSF_STATUS_PRESENTED           0x00000100
  74 #define FSF_PROT_DUPLICATE_REQUEST_ID           0x00000200
  75 #define FSF_PROT_LINK_DOWN                      0x00000400
  76 #define FSF_PROT_REEST_QUEUE                    0x00000800
  77 #define FSF_PROT_ERROR_STATE                    0x01000000
  78
  79 /* FSF stati */
  80 #define FSF_GOOD                                0x00000000
  81 #define FSF_PORT_ALREADY_OPEN                   0x00000001
  82 #define FSF_LUN_ALREADY_OPEN                    0x00000002
  83 #define FSF_PORT_HANDLE_NOT_VALID               0x00000003
  84 #define FSF_LUN_HANDLE_NOT_VALID                0x00000004
  85 #define FSF_HANDLE_MISMATCH                     0x00000005
  86 #define FSF_SERVICE_CLASS_NOT_SUPPORTED         0x00000006
  87 #define FSF_FCPLUN_NOT_VALID                    0x00000009
  88 #define FSF_ACCESS_DENIED                       0x00000010
  89 #define FSF_LUN_SHARING_VIOLATION               0x00000012
  90 #define FSF_FCP_COMMAND_DOES_NOT_EXIST          0x00000022
  91 #define FSF_DIRECTION_INDICATOR_NOT_VALID       0x00000030
  92 #define FSF_CMND_LENGTH_NOT_VALID               0x00000033
  93 #define FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED    0x00000040
  94 #define FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED     0x00000041
  95 #define FSF_ELS_COMMAND_REJECTED                0x00000050
  96 #define FSF_GENERIC_COMMAND_REJECTED            0x00000051
  97 #define FSF_OPERATION_PARTIALLY_SUCCESSFUL      0x00000052
  98 #define FSF_AUTHORIZATION_FAILURE               0x00000053
  99 #define FSF_CFDC_ERROR_DETECTED                 0x00000054
 100 #define FSF_CONTROL_FILE_UPDATE_ERROR           0x00000055
 101 #define FSF_CONTROL_FILE_TOO_LARGE              0x00000056
 102 #define FSF_ACCESS_CONFLICT_DETECTED            0x00000057
 103 #define FSF_CONFLICTS_OVERRULED                 0x00000058
 104 #define FSF_PORT_BOXED                          0x00000059
 105 #define FSF_LUN_BOXED                           0x0000005A
 106 #define FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE     0x0000005B
 107 #define FSF_PAYLOAD_SIZE_MISMATCH               0x00000060
 108 #define FSF_REQUEST_SIZE_TOO_LARGE              0x00000061
 109 #define FSF_RESPONSE_SIZE_TOO_LARGE             0x00000062
 110 #define FSF_SBAL_MISMATCH                       0x00000063
 111 #define FSF_OPEN_PORT_WITHOUT_PRLI              0x00000064
 112 #define FSF_ADAPTER_STATUS_AVAILABLE            0x000000AD
 113 #define FSF_FCP_RSP_AVAILABLE                   0x000000AF
 114 #define FSF_UNKNOWN_COMMAND                     0x000000E2
 115 #define FSF_UNKNOWN_OP_SUBTYPE                  0x000000E3
 116 #define FSF_INVALID_COMMAND_OPTION              0x000000E5
 117 /* #define FSF_ERROR                             0x000000FF  */
 118
 119 #define FSF_PROT_STATUS_QUAL_SIZE               16
 120 #define FSF_STATUS_QUALIFIER_SIZE               16
 121
 122 /* FSF status qualifier, recommendations */
 123 #define FSF_SQ_NO_RECOM                         0x00
 124 #define FSF_SQ_FCP_RSP_AVAILABLE                0x01
 125 #define FSF_SQ_RETRY_IF_POSSIBLE                0x02
 126 #define FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED       0x03
 127 #define FSF_SQ_INVOKE_LINK_TEST_PROCEDURE       0x04
 128 #define FSF_SQ_ULP_PROGRAMMING_ERROR            0x05
 129 #define FSF_SQ_COMMAND_ABORTED                  0x06
 130 #define FSF_SQ_NO_RETRY_POSSIBLE                0x07
 131
 132 /* FSF status qualifier for CFDC commands */
 133 #define FSF_SQ_CFDC_HARDENED_ON_SE              0x00000000
 134 #define FSF_SQ_CFDC_COULD_NOT_HARDEN_ON_SE      0x00000001
 135 #define FSF_SQ_CFDC_COULD_NOT_HARDEN_ON_SE2     0x00000002
 136 /* CFDC subtable codes */
 137 #define FSF_SQ_CFDC_SUBTABLE_OS                 0x0001
 138 #define FSF_SQ_CFDC_SUBTABLE_PORT_WWPN          0x0002
 139 #define FSF_SQ_CFDC_SUBTABLE_PORT_DID           0x0003
 140 #define FSF_SQ_CFDC_SUBTABLE_LUN                0x0004
 141
 142 /* FSF status qualifier (most significant 4 bytes), local link down */
 143 #define FSF_PSQ_LINK_NOLIGHT                    0x00000004
 144 #define FSF_PSQ_LINK_WRAPPLUG                   0x00000008
 145 #define FSF_PSQ_LINK_NOFCP                      0x00000010
 146
 147 /* payload size in status read buffer */
 148 #define FSF_STATUS_READ_PAYLOAD_SIZE            4032
 149
 150 /* number of status read buffers that should be sent by ULP */
 151 #define FSF_STATUS_READS_RECOM                  16
 152
 153 /* status types in status read buffer */
 154 #define FSF_STATUS_READ_PORT_CLOSED             0x00000001
 155 #define FSF_STATUS_READ_INCOMING_ELS            0x00000002
 156 #define FSF_STATUS_READ_SENSE_DATA_AVAIL        0x00000003
 157 #define FSF_STATUS_READ_BIT_ERROR_THRESHOLD     0x00000004
 158 #define FSF_STATUS_READ_LINK_DOWN               0x00000005 /* FIXME: really? */
 159 #define FSF_STATUS_READ_LINK_UP                 0x00000006
 160 #define FSF_STATUS_READ_CFDC_UPDATED            0x0000000A
 161 #define FSF_STATUS_READ_CFDC_HARDENED           0x0000000B
 162
 163 /* status subtypes in status read buffer */
 164 #define FSF_STATUS_READ_SUB_CLOSE_PHYS_PORT     0x00000001
 165 #define FSF_STATUS_READ_SUB_ERROR_PORT          0x00000002
 166
 167 /* status subtypes for CFDC */
 168 #define FSF_STATUS_READ_SUB_CFDC_HARDENED_ON_SE 0x00000002
 169 #define FSF_STATUS_READ_SUB_CFDC_HARDENED_ON_SE2 0x0000000F
 170
 171 /* topologie that is detected by the adapter */
 172 #define FSF_TOPO_ERROR                          0x00000000
 173 #define FSF_TOPO_P2P                            0x00000001
 174 #define FSF_TOPO_FABRIC                         0x00000002
 175 #define FSF_TOPO_AL                             0x00000003
 176 #define FSF_TOPO_FABRIC_VIRT                    0x00000004
 177
 178 /* data direction for FCP commands */
 179 #define FSF_DATADIR_WRITE                       0x00000001
 180 #define FSF_DATADIR_READ                        0x00000002
 181 #define FSF_DATADIR_READ_WRITE                  0x00000003
 182 #define FSF_DATADIR_CMND                        0x00000004
 183
 184 /* fc service class */
 185 #define FSF_CLASS_1                             0x00000001
 186 #define FSF_CLASS_2                             0x00000002
 187 #define FSF_CLASS_3                             0x00000003
 188
 189 /* SBAL chaining */
 190 #define FSF_MAX_SBALS_PER_REQ                   36
 191 #define FSF_MAX_SBALS_PER_ELS_REQ               2
 192
 193 /* logging space behind QTCB */
 194 #define FSF_QTCB_LOG_SIZE                       1024
 195
 196 /* channel features */
 197 #define FSF_FEATURE_QTCB_SUPPRESSION            0x00000001
 198 #define FSF_FEATURE_CFDC                        0x00000002
 199 #define FSF_FEATURE_LUN_SHARING                 0x00000004
 200 #define FSF_FEATURE_HBAAPI_MANAGEMENT           0x00000010
 201 #define FSF_FEATURE_ELS_CT_CHAINED_SBALS        0x00000020
 202
 203 /* option */
 204 #define FSF_OPEN_LUN_SUPPRESS_BOXING            0x00000001
 205 #define FSF_OPEN_LUN_REPLICATE_SENSE            0x00000002
 206
 207 /* adapter types */
 208 #define FSF_ADAPTER_TYPE_FICON                  0x00000001
 209 #define FSF_ADAPTER_TYPE_FICON_EXPRESS          0x00000002
 210
 211 /* port types */
 212 #define FSF_HBA_PORTTYPE_UNKNOWN                0x00000001
 213 #define FSF_HBA_PORTTYPE_NOTPRESENT             0x00000003
 214 #define FSF_HBA_PORTTYPE_NPORT                  0x00000005
 215 #define FSF_HBA_PORTTYPE_PTP                    0x00000021
 216 /* following are not defined and used by FSF Spec
 217    but are additionally defined by FC-HBA */
 218 #define FSF_HBA_PORTTYPE_OTHER                  0x00000002
 219 #define FSF_HBA_PORTTYPE_NOTPRESENT             0x00000003
 220 #define FSF_HBA_PORTTYPE_NLPORT                 0x00000006
 221 #define FSF_HBA_PORTTYPE_FLPORT                 0x00000007
 222 #define FSF_HBA_PORTTYPE_FPORT                  0x00000008
 223 #define FSF_HBA_PORTTYPE_LPORT                  0x00000020
 224
 225 /* port states */
 226 #define FSF_HBA_PORTSTATE_UNKNOWN               0x00000001
 227 #define FSF_HBA_PORTSTATE_ONLINE                0x00000002
 228 #define FSF_HBA_PORTSTATE_OFFLINE               0x00000003
 229 #define FSF_HBA_PORTSTATE_LINKDOWN              0x00000006
 230 #define FSF_HBA_PORTSTATE_ERROR                 0x00000007
 231
 232 /* IO states of adapter */
 233 #define FSF_IOSTAT_NPORT_RJT                    0x00000004
 234 #define FSF_IOSTAT_FABRIC_RJT                   0x00000005
 235 #define FSF_IOSTAT_LS_RJT                       0x00000009
 236
 237 /* open LUN access flags*/
 238 #define FSF_UNIT_ACCESS_OPEN_LUN_ALLOWED        0x01000000
 239 #define FSF_UNIT_ACCESS_EXCLUSIVE               0x02000000
 240 #define FSF_UNIT_ACCESS_OUTBOUND_TRANSFER       0x10000000
 241
 242 struct fsf_queue_designator;
 243 struct fsf_status_read_buffer;
 244 struct fsf_port_closed_payload;
 245 struct fsf_bit_error_payload;
 246 union  fsf_prot_status_qual;
 247 struct fsf_qual_version_error;
 248 struct fsf_qual_sequence_error;
 249 struct fsf_qtcb_prefix;
 250 struct fsf_qtcb_header;
 251 struct fsf_qtcb_bottom_config;
 252 struct fsf_qtcb_bottom_support;
 253 struct fsf_qtcb_bottom_io;
 254 union  fsf_qtcb_bottom;
 255
 256 struct fsf_queue_designator {
 257         u8  cssid;
 258         u8  chpid;
 259         u8  hla;
 260         u8  ua;
 261         u32 res1;
 262 } __attribute__ ((packed));
 263
 264 struct fsf_port_closed_payload {
 265         struct fsf_queue_designator queue_designator;
 266         u32                         port_handle;
 267 } __attribute__ ((packed));
 268
 269 struct fsf_bit_error_payload {
 270         u32 res1;
 271         u32 link_failure_error_count;
 272         u32 loss_of_sync_error_count;
 273         u32 loss_of_signal_error_count;
 274         u32 primitive_sequence_error_count;
 275         u32 invalid_transmission_word_error_count;
 276         u32 crc_error_count;
 277         u32 primitive_sequence_event_timeout_count;
 278         u32 elastic_buffer_overrun_error_count;
 279         u32 fcal_arbitration_timeout_count;
 280         u32 advertised_receive_b2b_credit;
 281         u32 current_receive_b2b_credit;
 282         u32 advertised_transmit_b2b_credit;
 283         u32 current_transmit_b2b_credit;
 284 } __attribute__ ((packed));
 285
 286 struct fsf_status_read_buffer {
 287         u32 status_type;
 288         u32 status_subtype;
 289         u32 length;
 290         u32 res1;
 291         struct fsf_queue_designator queue_designator;
 292         u32 d_id;
 293         u32 class;
 294         u64 fcp_lun;
 295         u8  res3[24];
 296         u8  payload[FSF_STATUS_READ_PAYLOAD_SIZE];
 297 } __attribute__ ((packed));
 298
 299 struct fsf_qual_version_error {
 300         u32 fsf_version;
 301         u32 res1[3];
 302 } __attribute__ ((packed));
 303
 304 struct fsf_qual_sequence_error {
 305         u32 exp_req_seq_no;
 306         u32 res1[3];
 307 } __attribute__ ((packed));
 308
 309 struct fsf_qual_locallink_error {
 310         u32 code;
 311         u32 res1[3];
 312 } __attribute__ ((packed));
 313
 314 union fsf_prot_status_qual {
 315         u64 doubleword[FSF_PROT_STATUS_QUAL_SIZE / sizeof(u64)];
 316         struct fsf_qual_version_error   version_error;
 317         struct fsf_qual_sequence_error  sequence_error;
 318         struct fsf_qual_locallink_error locallink_error;
 319 } __attribute__ ((packed));
 320
 321 struct fsf_qtcb_prefix {
 322         u64 req_id;
 323         u32 qtcb_version;
 324         u32 ulp_info;
 325         u32 qtcb_type;
 326         u32 req_seq_no;
 327         u32 prot_status;
 328         union fsf_prot_status_qual prot_status_qual;
 329         u8  res1[20];
 330 } __attribute__ ((packed));
 331
 332 union fsf_status_qual {
 333         u8  byte[FSF_STATUS_QUALIFIER_SIZE];
 334         u16 halfword[FSF_STATUS_QUALIFIER_SIZE / sizeof (u16)];
 335         u32 word[FSF_STATUS_QUALIFIER_SIZE / sizeof (u32)];
 336         u64 doubleword[FSF_STATUS_QUALIFIER_SIZE / sizeof(u64)];
 337         struct fsf_queue_designator fsf_queue_designator;
 338 } __attribute__ ((packed));
 339
 340 struct fsf_qtcb_header {
 341         u64 req_handle;
 342         u32 fsf_command;
 343         u32 res1;
 344         u32 port_handle;
 345         u32 lun_handle;
 346         u32 res2;
 347         u32 fsf_status;
 348         union fsf_status_qual fsf_status_qual;
 349         u8  res3[28];
 350         u16 log_start;
 351         u16 log_length;
 352         u8  res4[16];
 353 } __attribute__ ((packed));
 354
 355 struct fsf_nport_serv_param {
 356         u8  common_serv_param[16];
 357         u64 wwpn;
 358         u64 wwnn;
 359         u8  class1_serv_param[16];
 360         u8  class2_serv_param[16];
 361         u8  class3_serv_param[16];
 362         u8  class4_serv_param[16];
 363         u8  vendor_version_level[16];
 364 } __attribute__ ((packed));
 365
 366 struct fsf_plogi {
 367         u32    code;
 368         struct fsf_nport_serv_param serv_param;
 369 } __attribute__ ((packed));
 370
 371 #define FSF_FCP_CMND_SIZE       288
 372 #define FSF_FCP_RSP_SIZE        128
 373
 374 struct fsf_qtcb_bottom_io {
 375         u32 data_direction;
 376         u32 service_class;
 377         u8  res1[8];
 378         u32 fcp_cmnd_length;
 379         u8  res2[12];
 380         u8  fcp_cmnd[FSF_FCP_CMND_SIZE];
 381         u8  fcp_rsp[FSF_FCP_RSP_SIZE];
 382         u8  res3[64];
 383 } __attribute__ ((packed));
 384
 385 struct fsf_qtcb_bottom_support {
 386         u32 operation_subtype;
 387         u8  res1[12];
 388         u32 d_id;
 389         u32 option;
 390         u64 fcp_lun;
 391         u64 res2;
 392         u64 req_handle;
 393         u32 service_class;
 394         u8  res3[3];
 395         u8  timeout;
 396         u32 lun_access_info;
 397         u8  res4[180];
 398         u32 els1_length;
 399         u32 els2_length;
 400         u32 req_buf_length;
 401         u32 resp_buf_length;
 402         u8  els[256];
 403 } __attribute__ ((packed));
 404
 405 struct fsf_qtcb_bottom_config {
 406         u32 lic_version;
 407         u32 feature_selection;
 408         u32 high_qtcb_version;
 409         u32 low_qtcb_version;
 410         u32 max_qtcb_size;
 411         u32 max_data_transfer_size;
 412         u32 supported_features;
 413         u8  res1[4];
 414         u32 fc_topology;
 415         u32 fc_link_speed;
 416         u32 adapter_type;
 417         u32 peer_d_id;
 418         u8 res2[12];
 419         u32 s_id;
 420         struct fsf_nport_serv_param nport_serv_param;
 421         u8 reserved_nport_serv_param[16];
 422         u8 res3[8];
 423         u32 adapter_ports;
 424         u32 hardware_version;
 425         u8 serial_number[32];
 426         struct fsf_nport_serv_param plogi_payload;
 427         u8 res4[160];
 428 } __attribute__ ((packed));
 429
 430 struct fsf_qtcb_bottom_port {
 431         u8 res1[8];
 432         u32 fc_port_id;
 433         u32 port_type;
 434         u32 port_state;
 435         u32 class_of_service;   /* should be 0x00000006 for class 2 and 3 */
 436         u8 supported_fc4_types[32]; /* should be 0x00000100 for scsi fcp */
 437         u8 active_fc4_types[32];
 438         u32 supported_speed;    /* 0x0001 for 1 GBit/s or 0x0002 for 2 GBit/s */
 439         u32 maximum_frame_size; /* fixed value of 2112 */
 440         u64 seconds_since_last_reset;
 441         u64 tx_frames;
 442         u64 tx_words;
 443         u64 rx_frames;
 444         u64 rx_words;
 445         u64 lip;                /* 0 */
 446         u64 nos;                /* currently 0 */
 447         u64 error_frames;       /* currently 0 */
 448         u64 dumped_frames;      /* currently 0 */
 449         u64 link_failure;
 450         u64 loss_of_sync;
 451         u64 loss_of_signal;
 452         u64 psp_error_counts;
 453         u64 invalid_tx_words;
 454         u64 invalid_crcs;
 455         u64 input_requests;
 456         u64 output_requests;
 457         u64 control_requests;
 458         u64 input_mb;           /* where 1 MByte == 1.000.000 Bytes */
 459         u64 output_mb;          /* where 1 MByte == 1.000.000 Bytes */
 460         u8 res2[256];
 461 } __attribute__ ((packed));
 462
 463 union fsf_qtcb_bottom {
 464         struct fsf_qtcb_bottom_io      io;
 465         struct fsf_qtcb_bottom_support support;
 466         struct fsf_qtcb_bottom_config  config;
 467         struct fsf_qtcb_bottom_port port;
 468 };
 469
 470 struct fsf_qtcb {
 471         struct fsf_qtcb_prefix prefix;
 472         struct fsf_qtcb_header header;
 473         union  fsf_qtcb_bottom bottom;
 474         u8 log[FSF_QTCB_LOG_SIZE];
 475 } __attribute__ ((packed));
 476
 477 #endif                          /* FSF_H */