include/scsi/osd_protocol.h

   1 /*
   2  * osd_protocol.h - OSD T10 standard C definitions.
   3  *
   4  * Copyright (C) 2008 Panasas Inc.  All rights reserved.
   5  *
   6  * Authors:
   7  *   Boaz Harrosh <bharrosh@panasas.com>
   8  *   Benny Halevy <bhalevy@panasas.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2
  12  *
  13  * This file contains types and constants that are defined by the protocol
  14  * Note: All names and symbols are taken from the OSD standard's text.
  15  */
  16 #ifndef __OSD_PROTOCOL_H__
  17 #define __OSD_PROTOCOL_H__
  18
  19 #include <linux/types.h>
  20 #include <asm/unaligned.h>
  21 #include <scsi/scsi.h>
  22
  23 enum {
  24         OSDv1_ADDITIONAL_CDB_LENGTH = 192,
  25         OSDv1_TOTAL_CDB_LEN = OSDv1_ADDITIONAL_CDB_LENGTH + 8,
  26         OSDv1_CAP_LEN = 80,
  27         /* Latest supported version */
  28 /*      OSD_ADDITIONAL_CDB_LENGTH = 216,*/
  29         OSD_ADDITIONAL_CDB_LENGTH =
  30                 OSDv1_ADDITIONAL_CDB_LENGTH, /* FIXME: Pete rev-001 sup */
  31         OSD_TOTAL_CDB_LEN = OSD_ADDITIONAL_CDB_LENGTH + 8,
  32 /*      OSD_CAP_LEN = 104,*/
  33         OSD_CAP_LEN = OSDv1_CAP_LEN,/* FIXME: Pete rev-001 sup */
  34
  35         OSD_SYSTEMID_LEN = 20,
  36         OSD_CRYPTO_KEYID_SIZE = 20,
  37         /*FIXME: OSDv2_CRYPTO_KEYID_SIZE = 32,*/
  38         OSD_CRYPTO_SEED_SIZE = 4,
  39         OSD_CRYPTO_NONCE_SIZE = 12,
  40         OSD_MAX_SENSE_LEN = 252, /* from SPC-3 */
  41
  42         OSD_PARTITION_FIRST_ID = 0x10000,
  43         OSD_OBJECT_FIRST_ID = 0x10000,
  44 };
  45
  46 /* (osd-r10 5.2.4)
  47  * osd2r03: 5.2.3 Caching control bits
  48  */
  49 enum osd_options_byte {
  50         OSD_CDB_FUA = 0x08,     /* Force Unit Access */
  51         OSD_CDB_DPO = 0x10,     /* Disable Page Out */
  52 };
  53
  54 /*
  55  * osd2r03: 5.2.5 Isolation.
  56  * First 3 bits, V2-only.
  57  * Also for attr 110h "default isolation method" at Root Information page
  58  */
  59 enum osd_options_byte_isolation {
  60         OSD_ISOLATION_DEFAULT = 0,
  61         OSD_ISOLATION_NONE = 1,
  62         OSD_ISOLATION_STRICT = 2,
  63         OSD_ISOLATION_RANGE = 4,
  64         OSD_ISOLATION_FUNCTIONAL = 5,
  65         OSD_ISOLATION_VENDOR = 7,
  66 };
  67
  68 /* (osd-r10: 6.7)
  69  * osd2r03: 6.8 FLUSH, FLUSH COLLECTION, FLUSH OSD, FLUSH PARTITION
  70  */
  71 enum osd_options_flush_scope_values {
  72         OSD_CDB_FLUSH_ALL = 0,
  73         OSD_CDB_FLUSH_ATTR_ONLY = 1,
  74
  75         OSD_CDB_FLUSH_ALL_RECURSIVE = 2,
  76         /* V2-only */
  77         OSD_CDB_FLUSH_ALL_RANGE = 2,
  78 };
  79
  80 /* osd2r03: 5.2.10 Timestamps control */
  81 enum {
  82         OSD_CDB_NORMAL_TIMESTAMPS = 0,
  83         OSD_CDB_BYPASS_TIMESTAMPS = 0x7f,
  84 };
  85
  86 /* (osd-r10: 5.2.2.1)
  87  * osd2r03: 5.2.4.1 Get and set attributes CDB format selection
  88  *      2 bits at second nibble of command_specific_options byte
  89  */
  90 enum osd_attributes_mode {
  91         /* V2-only */
  92         OSD_CDB_SET_ONE_ATTR = 0x10,
  93
  94         OSD_CDB_GET_ATTR_PAGE_SET_ONE = 0x20,
  95         OSD_CDB_GET_SET_ATTR_LISTS = 0x30,
  96
  97         OSD_CDB_GET_SET_ATTR_MASK = 0x30,
  98 };
  99
 100 /* (osd-r10: 4.12.5)
 101  * osd2r03: 4.14.5 Data-In and Data-Out buffer offsets
 102  *      byte offset = mantissa * (2^(exponent+8))
 103  *      struct {
 104  *              unsigned mantissa: 28;
 105  *              int exponent: 04;
 106  *      }
 107  */
 108 typedef __be32 __bitwise osd_cdb_offset;
 109
 110 enum {
 111         OSD_OFFSET_UNUSED = 0xFFFFFFFF,
 112         OSD_OFFSET_MAX_BITS = 28,
 113
 114         OSDv1_OFFSET_MIN_SHIFT = 8,
 115         OSD_OFFSET_MIN_SHIFT = 3,
 116         OSD_OFFSET_MAX_SHIFT = 16,
 117 };
 118
 119 /* Return the smallest allowed encoded offset that contains @offset.
 120  *
 121  * The actual encoded offset returned is @offset + *padding.
 122  * (up to max_shift, non-inclusive)
 123  */
 124 osd_cdb_offset __osd_encode_offset(u64 offset, unsigned *padding,
 125         int min_shift, int max_shift);
 126
 127 /* Minimum alignment is 256 bytes
 128  * Note: Seems from std v1 that exponent can be from 0+8 to 0xE+8 (inclusive)
 129  * which is 8 to 23 but IBM code restricts it to 16, so be it.
 130  */
 131 static inline osd_cdb_offset osd_encode_offset_v1(u64 offset, unsigned *padding)
 132 {
 133         return __osd_encode_offset(offset, padding,
 134                                 OSDv1_OFFSET_MIN_SHIFT, OSD_OFFSET_MAX_SHIFT);
 135 }
 136
 137 /* Minimum 8 bytes alignment
 138  * Same as v1 but since exponent can be signed than a less than
 139  * 256 alignment can be reached with small offsets (<2GB)
 140  */
 141 static inline osd_cdb_offset osd_encode_offset_v2(u64 offset, unsigned *padding)
 142 {
 143         return __osd_encode_offset(offset, padding,
 144                                    OSD_OFFSET_MIN_SHIFT, OSD_OFFSET_MAX_SHIFT);
 145 }
 146
 147 /* osd2r03: 5.2.1 Overview */
 148 struct osd_cdb_head {
 149         struct scsi_varlen_cdb_hdr varlen_cdb;
 150 /*10*/  u8              options;
 151         u8              command_specific_options;
 152         u8              timestamp_control;
 153 /*13*/  u8              reserved1[3];
 154 /*16*/  __be64          partition;
 155 /*24*/  __be64          object;
 156 /*32*/  union { /* V1 vs V2 alignment differences */
 157                 struct __osdv1_cdb_addr_len {
 158 /*32*/                  __be32          list_identifier;/* Rarely used */
 159 /*36*/                  __be64          length;
 160 /*44*/                  __be64          start_address;
 161                 } __packed v1;
 162
 163                 struct __osdv2_cdb_addr_len {
 164                         /* called allocation_length in some commands */
 165 /*32*/                  __be64  length;
 166 /*40*/                  __be64  start_address;
 167 /*48*/                  __be32 list_identifier;/* Rarely used */
 168                 } __packed v2;
 169         };
 170 /*52*/  union { /* selected attributes mode Page/List/Single */
 171                 struct osd_attributes_page_mode {
 172 /*52*/                  __be32          get_attr_page;
 173 /*56*/                  __be32          get_attr_alloc_length;
 174 /*60*/                  osd_cdb_offset  get_attr_offset;
 175
 176 /*64*/                  __be32          set_attr_page;
 177 /*68*/                  __be32          set_attr_id;
 178 /*72*/                  __be32          set_attr_length;
 179 /*76*/                  osd_cdb_offset  set_attr_offset;
 180 /*80*/          } __packed attrs_page;
 181
 182                 struct osd_attributes_list_mode {
 183 /*52*/                  __be32          get_attr_desc_bytes;
 184 /*56*/                  osd_cdb_offset  get_attr_desc_offset;
 185
 186 /*60*/                  __be32          get_attr_alloc_length;
 187 /*64*/                  osd_cdb_offset  get_attr_offset;
 188
 189 /*68*/                  __be32          set_attr_bytes;
 190 /*72*/                  osd_cdb_offset  set_attr_offset;
 191                         __be32 not_used;
 192 /*80*/          } __packed attrs_list;
 193
 194                 /* osd2r03:5.2.4.2 Set one attribute value using CDB fields */
 195                 struct osd_attributes_cdb_mode {
 196 /*52*/                  __be32          set_attr_page;
 197 /*56*/                  __be32          set_attr_id;
 198 /*60*/                  __be16          set_attr_len;
 199 /*62*/                  u8              set_attr_val[18];
 200 /*80*/          } __packed attrs_cdb;
 201 /*52*/          u8 get_set_attributes_parameters[28];
 202         };
 203 } __packed;
 204 /*80*/
 205
 206 /*160 v1*/
 207 /*184 v2*/
 208 struct osd_security_parameters {
 209 /*160*/u8       integrity_check_value[OSD_CRYPTO_KEYID_SIZE];
 210 /*180*/u8       request_nonce[OSD_CRYPTO_NONCE_SIZE];
 211 /*192*/osd_cdb_offset   data_in_integrity_check_offset;
 212 /*196*/osd_cdb_offset   data_out_integrity_check_offset;
 213 } __packed;
 214 /*200 v1*/
 215 /*224 v2*/
 216
 217 /* FIXME: osdv2_security_parameters */
 218
 219 struct osdv1_cdb {
 220         struct osd_cdb_head h;
 221         u8 caps[OSDv1_CAP_LEN];
 222         struct osd_security_parameters sec_params;
 223 } __packed;
 224
 225 struct osdv2_cdb {
 226         struct osd_cdb_head h;
 227         u8 caps[OSD_CAP_LEN];
 228         struct osd_security_parameters sec_params;
 229         /* FIXME: osdv2_security_parameters */
 230 } __packed;
 231
 232 struct osd_cdb {
 233         union {
 234                 struct osdv1_cdb v1;
 235                 struct osdv2_cdb v2;
 236                 u8 buff[OSD_TOTAL_CDB_LEN];
 237         };
 238 } __packed;
 239
 240 static inline struct osd_cdb_head *osd_cdb_head(struct osd_cdb *ocdb)
 241 {
 242         return (struct osd_cdb_head *)ocdb->buff;
 243 }
 244
 245 /* define both version actions
 246  * Ex name = FORMAT_OSD we have OSD_ACT_FORMAT_OSD && OSDv1_ACT_FORMAT_OSD
 247  */
 248 #define OSD_ACT___(Name, Num) \
 249         OSD_ACT_##Name = __constant_cpu_to_be16(0x8880 + Num), \
 250         OSDv1_ACT_##Name = __constant_cpu_to_be16(0x8800 + Num),
 251
 252 /* V2 only actions */
 253 #define OSD_ACT_V2(Name, Num) \
 254         OSD_ACT_##Name = __constant_cpu_to_be16(0x8880 + Num),
 255
 256 #define OSD_ACT_V1_V2(Name, Num1, Num2) \
 257         OSD_ACT_##Name = __constant_cpu_to_be16(Num2), \
 258         OSDv1_ACT_##Name = __constant_cpu_to_be16(Num1),
 259
 260 enum osd_service_actions {
 261         OSD_ACT_V2(OBJECT_STRUCTURE_CHECK,      0x00)
 262         OSD_ACT___(FORMAT_OSD,                  0x01)
 263         OSD_ACT___(CREATE,                      0x02)
 264         OSD_ACT___(LIST,                        0x03)
 265         OSD_ACT_V2(PUNCH,                       0x04)
 266         OSD_ACT___(READ,                        0x05)
 267         OSD_ACT___(WRITE,                       0x06)
 268         OSD_ACT___(APPEND,                      0x07)
 269         OSD_ACT___(FLUSH,                       0x08)
 270         OSD_ACT_V2(CLEAR,                       0x09)
 271         OSD_ACT___(REMOVE,                      0x0A)
 272         OSD_ACT___(CREATE_PARTITION,            0x0B)
 273         OSD_ACT___(REMOVE_PARTITION,            0x0C)
 274         OSD_ACT___(GET_ATTRIBUTES,              0x0E)
 275         OSD_ACT___(SET_ATTRIBUTES,              0x0F)
 276         OSD_ACT___(CREATE_AND_WRITE,            0x12)
 277         OSD_ACT___(CREATE_COLLECTION,           0x15)
 278         OSD_ACT___(REMOVE_COLLECTION,           0x16)
 279         OSD_ACT___(LIST_COLLECTION,             0x17)
 280         OSD_ACT___(SET_KEY,                     0x18)
 281         OSD_ACT___(SET_MASTER_KEY,              0x19)
 282         OSD_ACT___(FLUSH_COLLECTION,            0x1A)
 283         OSD_ACT___(FLUSH_PARTITION,             0x1B)
 284         OSD_ACT___(FLUSH_OSD,                   0x1C)
 285
 286         OSD_ACT_V2(QUERY,                       0x20)
 287         OSD_ACT_V2(REMOVE_MEMBER_OBJECTS,       0x21)
 288         OSD_ACT_V2(GET_MEMBER_ATTRIBUTES,       0x22)
 289         OSD_ACT_V2(SET_MEMBER_ATTRIBUTES,       0x23)
 290         OSD_ACT_V2(READ_MAP,                    0x31)
 291
 292         OSD_ACT_V1_V2(PERFORM_SCSI_COMMAND,     0x8F7E, 0x8F7C)
 293         OSD_ACT_V1_V2(SCSI_TASK_MANAGEMENT,     0x8F7F, 0x8F7D)
 294         /* 0x8F80 to 0x8FFF are Vendor specific */
 295 };
 296
 297 /* osd2r03: 7.1.3.2 List entry format for retrieving attributes */
 298 struct osd_attributes_list_attrid {
 299         __be32 attr_page;
 300         __be32 attr_id;
 301 } __packed;
 302
 303 /*
 304  * osd2r03: 7.1.3.3 List entry format for retrieved attributes and
 305  *                  for setting attributes
 306  * NOTE: v2 is 8-bytes aligned, v1 is not aligned.
 307  */
 308 struct osd_attributes_list_element {
 309         __be32 attr_page;
 310         __be32 attr_id;
 311         __be16 attr_bytes;
 312         u8 attr_val[0];
 313 } __packed;
 314
 315 enum {
 316         OSDv1_ATTRIBUTES_ELEM_ALIGN = 1,
 317         OSD_ATTRIBUTES_ELEM_ALIGN = 8,
 318 };
 319
 320 enum {
 321         OSD_ATTR_LIST_ALL_PAGES = 0xFFFFFFFF,
 322         OSD_ATTR_LIST_ALL_IN_PAGE = 0xFFFFFFFF,
 323 };
 324
 325 static inline unsigned osdv1_attr_list_elem_size(unsigned len)
 326 {
 327         return ALIGN(len + sizeof(struct osd_attributes_list_element),
 328                      OSDv1_ATTRIBUTES_ELEM_ALIGN);
 329 }
 330
 331 static inline unsigned osdv2_attr_list_elem_size(unsigned len)
 332 {
 333         return ALIGN(len + sizeof(struct osd_attributes_list_element),
 334                      OSD_ATTRIBUTES_ELEM_ALIGN);
 335 }
 336
 337 /*
 338  * osd2r03: 7.1.3 OSD attributes lists (Table 184) — List type values
 339  */
 340 enum osd_attr_list_types {
 341         OSD_ATTR_LIST_GET = 0x1,        /* descriptors only */
 342         OSD_ATTR_LIST_SET_RETRIEVE = 0x9, /*descriptors/values variable-length*/
 343         OSD_V2_ATTR_LIST_MULTIPLE = 0xE,  /* ver2, Multiple Objects lists*/
 344         OSD_V1_ATTR_LIST_CREATE_MULTIPLE = 0xF,/*ver1, used by create_multple*/
 345 };
 346
 347 /* osd2r03: 7.1.3.4 Multi-object retrieved attributes format */
 348 struct osd_attributes_list_multi_header {
 349         __be64 object_id;
 350         u8 object_type; /* object_type enum below */
 351         u8 reserved[5];
 352         __be16 list_bytes;
 353         /* followed by struct osd_attributes_list_element's */
 354 };
 355
 356 struct osdv1_attributes_list_header {
 357         u8 type;        /* low 4-bit only */
 358         u8 pad;
 359         __be16 list_bytes; /* Initiator shall set to Zero. Only set by target */
 360         /*
 361          * type=9 followed by struct osd_attributes_list_element's
 362          * type=E followed by struct osd_attributes_list_multi_header's
 363          */
 364 } __packed;
 365
 366 static inline unsigned osdv1_list_size(struct osdv1_attributes_list_header *h)
 367 {
 368         return be16_to_cpu(h->list_bytes);
 369 }
 370
 371 struct osdv2_attributes_list_header {
 372         u8 type;        /* lower 4-bits only */
 373         u8 pad[3];
 374 /*4*/   __be32 list_bytes; /* Initiator shall set to zero. Only set by target */
 375         /*
 376          * type=9 followed by struct osd_attributes_list_element's
 377          * type=E followed by struct osd_attributes_list_multi_header's
 378          */
 379 } __packed;
 380
 381 static inline unsigned osdv2_list_size(struct osdv2_attributes_list_header *h)
 382 {
 383         return be32_to_cpu(h->list_bytes);
 384 }
 385
 386 /* (osd-r10 6.13)
 387  * osd2r03: 6.15 LIST (Table 79) LIST command parameter data.
 388  *      for root_lstchg below
 389  */
 390 enum {
 391         OSD_OBJ_ID_LIST_PAR = 0x1, /* V1-only. Not used in V2 */
 392         OSD_OBJ_ID_LIST_LSTCHG = 0x2,
 393 };
 394
 395 /*
 396  * osd2r03: 6.15.2 LIST command parameter data
 397  * (Also for LIST COLLECTION)
 398  */
 399 struct osd_obj_id_list {
 400         __be64 list_bytes; /* bytes in list excluding list_bytes (-8) */
 401         __be64 continuation_id;
 402         __be32 list_identifier;
 403         u8 pad[3];
 404         u8 root_lstchg;
 405         __be64 object_ids[0];
 406 } __packed;
 407
 408 static inline bool osd_is_obj_list_done(struct osd_obj_id_list *list,
 409         bool *is_changed)
 410 {
 411         *is_changed = (0 != (list->root_lstchg & OSD_OBJ_ID_LIST_LSTCHG));
 412         return 0 != list->continuation_id;
 413 }
 414
 415 /*
 416  * osd2r03: 4.12.4.5 The ALLDATA security method
 417  */
 418 struct osd_data_out_integrity_info {
 419         __be64 data_bytes;
 420         __be64 set_attributes_bytes;
 421         __be64 get_attributes_bytes;
 422         __be64 integrity_check_value;
 423 } __packed;
 424
 425 struct osd_data_in_integrity_info {
 426         __be64 data_bytes;
 427         __be64 retrieved_attributes_bytes;
 428         __be64 integrity_check_value;
 429 } __packed;
 430
 431 struct osd_timestamp {
 432         u8 time[6]; /* number of milliseconds since 1/1/1970 UT (big endian) */
 433 } __packed;
 434 /* FIXME: define helper functions to convert to/from osd time format */
 435
 436 /*
 437  * Capability & Security definitions
 438  * osd2r03: 4.11.2.2 Capability format
 439  * osd2r03: 5.2.8 Security parameters
 440  */
 441
 442 struct osd_key_identifier {
 443         u8 id[7]; /* if you know why 7 please email bharrosh@panasas.com */
 444 } __packed;
 445
 446 /* for osd_capability.format */
 447 enum {
 448         OSD_SEC_CAP_FORMAT_NO_CAPS = 0,
 449         OSD_SEC_CAP_FORMAT_VER1 = 1,
 450         OSD_SEC_CAP_FORMAT_VER2 = 2,
 451 };
 452
 453 /* security_method */
 454 enum {
 455         OSD_SEC_NOSEC = 0,
 456         OSD_SEC_CAPKEY = 1,
 457         OSD_SEC_CMDRSP = 2,
 458         OSD_SEC_ALLDATA = 3,
 459 };
 460
 461 enum object_type {
 462         OSD_SEC_OBJ_ROOT = 0x1,
 463         OSD_SEC_OBJ_PARTITION = 0x2,
 464         OSD_SEC_OBJ_COLLECTION = 0x40,
 465         OSD_SEC_OBJ_USER = 0x80,
 466 };
 467
 468 enum osd_capability_bit_masks {
 469         OSD_SEC_CAP_APPEND      = BIT(0),
 470         OSD_SEC_CAP_OBJ_MGMT    = BIT(1),
 471         OSD_SEC_CAP_REMOVE      = BIT(2),
 472         OSD_SEC_CAP_CREATE      = BIT(3),
 473         OSD_SEC_CAP_SET_ATTR    = BIT(4),
 474         OSD_SEC_CAP_GET_ATTR    = BIT(5),
 475         OSD_SEC_CAP_WRITE       = BIT(6),
 476         OSD_SEC_CAP_READ        = BIT(7),
 477
 478         OSD_SEC_CAP_NONE1       = BIT(8),
 479         OSD_SEC_CAP_NONE2       = BIT(9),
 480         OSD_SEC_CAP_NONE3       = BIT(10),
 481         OSD_SEC_CAP_QUERY       = BIT(11), /*v2 only*/
 482         OSD_SEC_CAP_M_OBJECT    = BIT(12), /*v2 only*/
 483         OSD_SEC_CAP_POL_SEC     = BIT(13),
 484         OSD_SEC_CAP_GLOBAL      = BIT(14),
 485         OSD_SEC_CAP_DEV_MGMT    = BIT(15),
 486 };
 487
 488 /* for object_descriptor_type (hi nibble used) */
 489 enum {
 490         OSD_SEC_OBJ_DESC_NONE = 0,     /* Not allowed */
 491         OSD_SEC_OBJ_DESC_OBJ = 1 << 4, /* v1: also collection */
 492         OSD_SEC_OBJ_DESC_PAR = 2 << 4, /* also root */
 493         OSD_SEC_OBJ_DESC_COL = 3 << 4, /* v2 only */
 494 };
 495
 496 /* (osd-r10:4.9.2.2)
 497  * osd2r03:4.11.2.2 Capability format
 498  */
 499 struct osd_capability_head {
 500         u8 format; /* low nibble */
 501         u8 integrity_algorithm__key_version; /* MAKE_BYTE(integ_alg, key_ver) */
 502         u8 security_method;
 503         u8 reserved1;
 504 /*04*/  struct osd_timestamp expiration_time;
 505 /*10*/  u8 audit[20];
 506 /*30*/  u8 discriminator[12];
 507 /*42*/  struct osd_timestamp object_created_time;
 508 /*48*/  u8 object_type;
 509 /*49*/  u8 permissions_bit_mask[5];
 510 /*54*/  u8 reserved2;
 511 /*55*/  u8 object_descriptor_type; /* high nibble */
 512 } __packed;
 513
 514 /*56 v1*/
 515 struct osdv1_cap_object_descriptor {
 516         union {
 517                 struct {
 518 /*56*/                  __be32 policy_access_tag;
 519 /*60*/                  __be64 allowed_partition_id;
 520 /*68*/                  __be64 allowed_object_id;
 521 /*76*/                  __be32 reserved;
 522                 } __packed obj_desc;
 523
 524 /*56*/          u8 object_descriptor[24];
 525         };
 526 } __packed;
 527 /*80 v1*/
 528
 529 /*56 v2*/
 530 struct osd_cap_object_descriptor {
 531         union {
 532                 struct {
 533 /*56*/                  __be32 allowed_attributes_access;
 534 /*60*/                  __be32 policy_access_tag;
 535 /*64*/                  __be16 boot_epoch;
 536 /*66*/                  u8 reserved[6];
 537 /*72*/                  __be64 allowed_partition_id;
 538 /*80*/                  __be64 allowed_object_id;
 539 /*88*/                  __be64 allowed_range_length;
 540 /*96*/                  __be64 allowed_range_start;
 541                 } __packed obj_desc;
 542
 543 /*56*/          u8 object_descriptor[48];
 544         };
 545 } __packed;
 546 /*104 v2*/
 547
 548 struct osdv1_capability {
 549         struct osd_capability_head h;
 550         struct osdv1_cap_object_descriptor od;
 551 } __packed;
 552
 553 struct osd_capability {
 554         struct osd_capability_head h;
 555 /*      struct osd_cap_object_descriptor od;*/
 556         struct osdv1_cap_object_descriptor od; /* FIXME: Pete rev-001 sup */
 557 } __packed;
 558
 559 /**
 560  * osd_sec_set_caps - set cap-bits into the capabilities header
 561  *
 562  * @cap:        The osd_capability_head to set cap bits to.
 563  * @bit_mask:   Use an ORed list of enum osd_capability_bit_masks values
 564  *
 565  * permissions_bit_mask is unaligned use below to set into caps
 566  * in a version independent way
 567  */
 568 static inline void osd_sec_set_caps(struct osd_capability_head *cap,
 569         u16 bit_mask)
 570 {
 571         /*
 572          *Note: The bits above are defined LE order this is because this way
 573          *      they can grow in the future to more then 16, and still retain
 574          *      there constant values.
 575          */
 576         put_unaligned_le16(bit_mask, &cap->permissions_bit_mask);
 577 }
 578
 579 #endif /* ndef __OSD_PROTOCOL_H__ */