1 /* 2 * include/linux/nfs4.h 3 * 4 * NFSv4 protocol definitions. 5 * 6 * Copyright (c) 2002 The Regents of the University of Michigan. 7 * All rights reserved. 8 * 9 * Kendrick Smith <[email protected]> 10 * Andy Adamson <[email protected]> 11 */ 12 #ifndef _LINUX_NFS4_H 13 #define _LINUX_NFS4_H 14 15 #include <linux/list.h> 16 #include <uapi/linux/nfs4.h> 17 18 struct nfs4_ace { 19 uint32_t type; 20 uint32_t flag; 21 uint32_t access_mask; 22 int whotype; 23 uid_t who; 24 }; 25 26 struct nfs4_acl { 27 uint32_t naces; 28 struct nfs4_ace aces[0]; 29 }; 30 31 typedef struct { char data[NFS4_VERIFIER_SIZE]; } nfs4_verifier; 32 33 struct nfs_stateid4 { 34 __be32 seqid; 35 char other[NFS4_STATEID_OTHER_SIZE]; 36 } __attribute__ ((packed)); 37 38 typedef struct nfs_stateid4 nfs4_stateid; 39 40 enum nfs_opnum4 { 41 OP_ACCESS = 3, 42 OP_CLOSE = 4, 43 OP_COMMIT = 5, 44 OP_CREATE = 6, 45 OP_DELEGPURGE = 7, 46 OP_DELEGRETURN = 8, 47 OP_GETATTR = 9, 48 OP_GETFH = 10, 49 OP_LINK = 11, 50 OP_LOCK = 12, 51 OP_LOCKT = 13, 52 OP_LOCKU = 14, 53 OP_LOOKUP = 15, 54 OP_LOOKUPP = 16, 55 OP_NVERIFY = 17, 56 OP_OPEN = 18, 57 OP_OPENATTR = 19, 58 OP_OPEN_CONFIRM = 20, 59 OP_OPEN_DOWNGRADE = 21, 60 OP_PUTFH = 22, 61 OP_PUTPUBFH = 23, 62 OP_PUTROOTFH = 24, 63 OP_READ = 25, 64 OP_READDIR = 26, 65 OP_READLINK = 27, 66 OP_REMOVE = 28, 67 OP_RENAME = 29, 68 OP_RENEW = 30, 69 OP_RESTOREFH = 31, 70 OP_SAVEFH = 32, 71 OP_SECINFO = 33, 72 OP_SETATTR = 34, 73 OP_SETCLIENTID = 35, 74 OP_SETCLIENTID_CONFIRM = 36, 75 OP_VERIFY = 37, 76 OP_WRITE = 38, 77 OP_RELEASE_LOCKOWNER = 39, 78 79 /* nfs41 */ 80 OP_BACKCHANNEL_CTL = 40, 81 OP_BIND_CONN_TO_SESSION = 41, 82 OP_EXCHANGE_ID = 42, 83 OP_CREATE_SESSION = 43, 84 OP_DESTROY_SESSION = 44, 85 OP_FREE_STATEID = 45, 86 OP_GET_DIR_DELEGATION = 46, 87 OP_GETDEVICEINFO = 47, 88 OP_GETDEVICELIST = 48, 89 OP_LAYOUTCOMMIT = 49, 90 OP_LAYOUTGET = 50, 91 OP_LAYOUTRETURN = 51, 92 OP_SECINFO_NO_NAME = 52, 93 OP_SEQUENCE = 53, 94 OP_SET_SSV = 54, 95 OP_TEST_STATEID = 55, 96 OP_WANT_DELEGATION = 56, 97 OP_DESTROY_CLIENTID = 57, 98 OP_RECLAIM_COMPLETE = 58, 99 100 OP_ILLEGAL = 10044, 101 }; 102 103 /*Defining first and last NFS4 operations implemented. 104 Needs to be updated if more operations are defined in future.*/ 105 106 #define FIRST_NFS4_OP OP_ACCESS 107 #define LAST_NFS4_OP OP_RECLAIM_COMPLETE 108 109 enum nfsstat4 { 110 NFS4_OK = 0, 111 NFS4ERR_PERM = 1, 112 NFS4ERR_NOENT = 2, 113 NFS4ERR_IO = 5, 114 NFS4ERR_NXIO = 6, 115 NFS4ERR_ACCESS = 13, 116 NFS4ERR_EXIST = 17, 117 NFS4ERR_XDEV = 18, 118 /* Unused/reserved 19 */ 119 NFS4ERR_NOTDIR = 20, 120 NFS4ERR_ISDIR = 21, 121 NFS4ERR_INVAL = 22, 122 NFS4ERR_FBIG = 27, 123 NFS4ERR_NOSPC = 28, 124 NFS4ERR_ROFS = 30, 125 NFS4ERR_MLINK = 31, 126 NFS4ERR_NAMETOOLONG = 63, 127 NFS4ERR_NOTEMPTY = 66, 128 NFS4ERR_DQUOT = 69, 129 NFS4ERR_STALE = 70, 130 NFS4ERR_BADHANDLE = 10001, 131 NFS4ERR_BAD_COOKIE = 10003, 132 NFS4ERR_NOTSUPP = 10004, 133 NFS4ERR_TOOSMALL = 10005, 134 NFS4ERR_SERVERFAULT = 10006, 135 NFS4ERR_BADTYPE = 10007, 136 NFS4ERR_DELAY = 10008, 137 NFS4ERR_SAME = 10009, 138 NFS4ERR_DENIED = 10010, 139 NFS4ERR_EXPIRED = 10011, 140 NFS4ERR_LOCKED = 10012, 141 NFS4ERR_GRACE = 10013, 142 NFS4ERR_FHEXPIRED = 10014, 143 NFS4ERR_SHARE_DENIED = 10015, 144 NFS4ERR_WRONGSEC = 10016, 145 NFS4ERR_CLID_INUSE = 10017, 146 NFS4ERR_RESOURCE = 10018, 147 NFS4ERR_MOVED = 10019, 148 NFS4ERR_NOFILEHANDLE = 10020, 149 NFS4ERR_MINOR_VERS_MISMATCH = 10021, 150 NFS4ERR_STALE_CLIENTID = 10022, 151 NFS4ERR_STALE_STATEID = 10023, 152 NFS4ERR_OLD_STATEID = 10024, 153 NFS4ERR_BAD_STATEID = 10025, 154 NFS4ERR_BAD_SEQID = 10026, 155 NFS4ERR_NOT_SAME = 10027, 156 NFS4ERR_LOCK_RANGE = 10028, 157 NFS4ERR_SYMLINK = 10029, 158 NFS4ERR_RESTOREFH = 10030, 159 NFS4ERR_LEASE_MOVED = 10031, 160 NFS4ERR_ATTRNOTSUPP = 10032, 161 NFS4ERR_NO_GRACE = 10033, 162 NFS4ERR_RECLAIM_BAD = 10034, 163 NFS4ERR_RECLAIM_CONFLICT = 10035, 164 NFS4ERR_BADXDR = 10036, 165 NFS4ERR_LOCKS_HELD = 10037, 166 NFS4ERR_OPENMODE = 10038, 167 NFS4ERR_BADOWNER = 10039, 168 NFS4ERR_BADCHAR = 10040, 169 NFS4ERR_BADNAME = 10041, 170 NFS4ERR_BAD_RANGE = 10042, 171 NFS4ERR_LOCK_NOTSUPP = 10043, 172 NFS4ERR_OP_ILLEGAL = 10044, 173 NFS4ERR_DEADLOCK = 10045, 174 NFS4ERR_FILE_OPEN = 10046, 175 NFS4ERR_ADMIN_REVOKED = 10047, 176 NFS4ERR_CB_PATH_DOWN = 10048, 177 178 /* nfs41 */ 179 NFS4ERR_BADIOMODE = 10049, 180 NFS4ERR_BADLAYOUT = 10050, 181 NFS4ERR_BAD_SESSION_DIGEST = 10051, 182 NFS4ERR_BADSESSION = 10052, 183 NFS4ERR_BADSLOT = 10053, 184 NFS4ERR_COMPLETE_ALREADY = 10054, 185 NFS4ERR_CONN_NOT_BOUND_TO_SESSION = 10055, 186 NFS4ERR_DELEG_ALREADY_WANTED = 10056, 187 NFS4ERR_BACK_CHAN_BUSY = 10057, /* backchan reqs outstanding */ 188 NFS4ERR_LAYOUTTRYLATER = 10058, 189 NFS4ERR_LAYOUTUNAVAILABLE = 10059, 190 NFS4ERR_NOMATCHING_LAYOUT = 10060, 191 NFS4ERR_RECALLCONFLICT = 10061, 192 NFS4ERR_UNKNOWN_LAYOUTTYPE = 10062, 193 NFS4ERR_SEQ_MISORDERED = 10063, /* unexpected seq.id in req */ 194 NFS4ERR_SEQUENCE_POS = 10064, /* [CB_]SEQ. op not 1st op */ 195 NFS4ERR_REQ_TOO_BIG = 10065, /* request too big */ 196 NFS4ERR_REP_TOO_BIG = 10066, /* reply too big */ 197 NFS4ERR_REP_TOO_BIG_TO_CACHE = 10067, /* rep. not all cached */ 198 NFS4ERR_RETRY_UNCACHED_REP = 10068, /* retry & rep. uncached */ 199 NFS4ERR_UNSAFE_COMPOUND = 10069, /* retry/recovery too hard */ 200 NFS4ERR_TOO_MANY_OPS = 10070, /* too many ops in [CB_]COMP */ 201 NFS4ERR_OP_NOT_IN_SESSION = 10071, /* op needs [CB_]SEQ. op */ 202 NFS4ERR_HASH_ALG_UNSUPP = 10072, /* hash alg. not supp. */ 203 /* Error 10073 is unused. */ 204 NFS4ERR_CLIENTID_BUSY = 10074, /* clientid has state */ 205 NFS4ERR_PNFS_IO_HOLE = 10075, /* IO to _SPARSE file hole */ 206 NFS4ERR_SEQ_FALSE_RETRY = 10076, /* retry not original */ 207 NFS4ERR_BAD_HIGH_SLOT = 10077, /* sequence arg bad */ 208 NFS4ERR_DEADSESSION = 10078, /* persistent session dead */ 209 NFS4ERR_ENCR_ALG_UNSUPP = 10079, /* SSV alg mismatch */ 210 NFS4ERR_PNFS_NO_LAYOUT = 10080, /* direct I/O with no layout */ 211 NFS4ERR_NOT_ONLY_OP = 10081, /* bad compound */ 212 NFS4ERR_WRONG_CRED = 10082, /* permissions:state change */ 213 NFS4ERR_WRONG_TYPE = 10083, /* current operation mismatch */ 214 NFS4ERR_DIRDELEG_UNAVAIL = 10084, /* no directory delegation */ 215 NFS4ERR_REJECT_DELEG = 10085, /* on callback */ 216 NFS4ERR_RETURNCONFLICT = 10086, /* outstanding layoutreturn */ 217 NFS4ERR_DELEG_REVOKED = 10087, /* deleg./layout revoked */ 218 }; 219 220 static inline bool seqid_mutating_err(u32 err) 221 { 222 /* rfc 3530 section 8.1.5: */ 223 switch (err) { 224 case NFS4ERR_STALE_CLIENTID: 225 case NFS4ERR_STALE_STATEID: 226 case NFS4ERR_BAD_STATEID: 227 case NFS4ERR_BAD_SEQID: 228 case NFS4ERR_BADXDR: 229 case NFS4ERR_RESOURCE: 230 case NFS4ERR_NOFILEHANDLE: 231 return false; 232 }; 233 return true; 234 } 235 236 /* 237 * Note: NF4BAD is not actually part of the protocol; it is just used 238 * internally by nfsd. 239 */ 240 enum nfs_ftype4 { 241 NF4BAD = 0, 242 NF4REG = 1, /* Regular File */ 243 NF4DIR = 2, /* Directory */ 244 NF4BLK = 3, /* Special File - block device */ 245 NF4CHR = 4, /* Special File - character device */ 246 NF4LNK = 5, /* Symbolic Link */ 247 NF4SOCK = 6, /* Special File - socket */ 248 NF4FIFO = 7, /* Special File - fifo */ 249 NF4ATTRDIR = 8, /* Attribute Directory */ 250 NF4NAMEDATTR = 9 /* Named Attribute */ 251 }; 252 253 enum open_claim_type4 { 254 NFS4_OPEN_CLAIM_NULL = 0, 255 NFS4_OPEN_CLAIM_PREVIOUS = 1, 256 NFS4_OPEN_CLAIM_DELEGATE_CUR = 2, 257 NFS4_OPEN_CLAIM_DELEGATE_PREV = 3, 258 NFS4_OPEN_CLAIM_FH = 4, /* 4.1 */ 259 NFS4_OPEN_CLAIM_DELEG_CUR_FH = 5, /* 4.1 */ 260 NFS4_OPEN_CLAIM_DELEG_PREV_FH = 6, /* 4.1 */ 261 }; 262 263 enum opentype4 { 264 NFS4_OPEN_NOCREATE = 0, 265 NFS4_OPEN_CREATE = 1 266 }; 267 268 enum createmode4 { 269 NFS4_CREATE_UNCHECKED = 0, 270 NFS4_CREATE_GUARDED = 1, 271 NFS4_CREATE_EXCLUSIVE = 2, 272 /* 273 * New to NFSv4.1. If session is persistent, 274 * GUARDED4 MUST be used. Otherwise, use 275 * EXCLUSIVE4_1 instead of EXCLUSIVE4. 276 */ 277 NFS4_CREATE_EXCLUSIVE4_1 = 3 278 }; 279 280 enum limit_by4 { 281 NFS4_LIMIT_SIZE = 1, 282 NFS4_LIMIT_BLOCKS = 2 283 }; 284 285 enum open_delegation_type4 { 286 NFS4_OPEN_DELEGATE_NONE = 0, 287 NFS4_OPEN_DELEGATE_READ = 1, 288 NFS4_OPEN_DELEGATE_WRITE = 2, 289 NFS4_OPEN_DELEGATE_NONE_EXT = 3, /* 4.1 */ 290 }; 291 292 enum why_no_delegation4 { /* new to v4.1 */ 293 WND4_NOT_WANTED = 0, 294 WND4_CONTENTION = 1, 295 WND4_RESOURCE = 2, 296 WND4_NOT_SUPP_FTYPE = 3, 297 WND4_WRITE_DELEG_NOT_SUPP_FTYPE = 4, 298 WND4_NOT_SUPP_UPGRADE = 5, 299 WND4_NOT_SUPP_DOWNGRADE = 6, 300 WND4_CANCELLED = 7, 301 WND4_IS_DIR = 8, 302 }; 303 304 enum lock_type4 { 305 NFS4_UNLOCK_LT = 0, 306 NFS4_READ_LT = 1, 307 NFS4_WRITE_LT = 2, 308 NFS4_READW_LT = 3, 309 NFS4_WRITEW_LT = 4 310 }; 311 312 313 /* Mandatory Attributes */ 314 #define FATTR4_WORD0_SUPPORTED_ATTRS (1UL << 0) 315 #define FATTR4_WORD0_TYPE (1UL << 1) 316 #define FATTR4_WORD0_FH_EXPIRE_TYPE (1UL << 2) 317 #define FATTR4_WORD0_CHANGE (1UL << 3) 318 #define FATTR4_WORD0_SIZE (1UL << 4) 319 #define FATTR4_WORD0_LINK_SUPPORT (1UL << 5) 320 #define FATTR4_WORD0_SYMLINK_SUPPORT (1UL << 6) 321 #define FATTR4_WORD0_NAMED_ATTR (1UL << 7) 322 #define FATTR4_WORD0_FSID (1UL << 8) 323 #define FATTR4_WORD0_UNIQUE_HANDLES (1UL << 9) 324 #define FATTR4_WORD0_LEASE_TIME (1UL << 10) 325 #define FATTR4_WORD0_RDATTR_ERROR (1UL << 11) 326 /* Mandatory in NFSv4.1 */ 327 #define FATTR4_WORD2_SUPPATTR_EXCLCREAT (1UL << 11) 328 329 /* Recommended Attributes */ 330 #define FATTR4_WORD0_ACL (1UL << 12) 331 #define FATTR4_WORD0_ACLSUPPORT (1UL << 13) 332 #define FATTR4_WORD0_ARCHIVE (1UL << 14) 333 #define FATTR4_WORD0_CANSETTIME (1UL << 15) 334 #define FATTR4_WORD0_CASE_INSENSITIVE (1UL << 16) 335 #define FATTR4_WORD0_CASE_PRESERVING (1UL << 17) 336 #define FATTR4_WORD0_CHOWN_RESTRICTED (1UL << 18) 337 #define FATTR4_WORD0_FILEHANDLE (1UL << 19) 338 #define FATTR4_WORD0_FILEID (1UL << 20) 339 #define FATTR4_WORD0_FILES_AVAIL (1UL << 21) 340 #define FATTR4_WORD0_FILES_FREE (1UL << 22) 341 #define FATTR4_WORD0_FILES_TOTAL (1UL << 23) 342 #define FATTR4_WORD0_FS_LOCATIONS (1UL << 24) 343 #define FATTR4_WORD0_HIDDEN (1UL << 25) 344 #define FATTR4_WORD0_HOMOGENEOUS (1UL << 26) 345 #define FATTR4_WORD0_MAXFILESIZE (1UL << 27) 346 #define FATTR4_WORD0_MAXLINK (1UL << 28) 347 #define FATTR4_WORD0_MAXNAME (1UL << 29) 348 #define FATTR4_WORD0_MAXREAD (1UL << 30) 349 #define FATTR4_WORD0_MAXWRITE (1UL << 31) 350 #define FATTR4_WORD1_MIMETYPE (1UL << 0) 351 #define FATTR4_WORD1_MODE (1UL << 1) 352 #define FATTR4_WORD1_NO_TRUNC (1UL << 2) 353 #define FATTR4_WORD1_NUMLINKS (1UL << 3) 354 #define FATTR4_WORD1_OWNER (1UL << 4) 355 #define FATTR4_WORD1_OWNER_GROUP (1UL << 5) 356 #define FATTR4_WORD1_QUOTA_HARD (1UL << 6) 357 #define FATTR4_WORD1_QUOTA_SOFT (1UL << 7) 358 #define FATTR4_WORD1_QUOTA_USED (1UL << 8) 359 #define FATTR4_WORD1_RAWDEV (1UL << 9) 360 #define FATTR4_WORD1_SPACE_AVAIL (1UL << 10) 361 #define FATTR4_WORD1_SPACE_FREE (1UL << 11) 362 #define FATTR4_WORD1_SPACE_TOTAL (1UL << 12) 363 #define FATTR4_WORD1_SPACE_USED (1UL << 13) 364 #define FATTR4_WORD1_SYSTEM (1UL << 14) 365 #define FATTR4_WORD1_TIME_ACCESS (1UL << 15) 366 #define FATTR4_WORD1_TIME_ACCESS_SET (1UL << 16) 367 #define FATTR4_WORD1_TIME_BACKUP (1UL << 17) 368 #define FATTR4_WORD1_TIME_CREATE (1UL << 18) 369 #define FATTR4_WORD1_TIME_DELTA (1UL << 19) 370 #define FATTR4_WORD1_TIME_METADATA (1UL << 20) 371 #define FATTR4_WORD1_TIME_MODIFY (1UL << 21) 372 #define FATTR4_WORD1_TIME_MODIFY_SET (1UL << 22) 373 #define FATTR4_WORD1_MOUNTED_ON_FILEID (1UL << 23) 374 #define FATTR4_WORD1_FS_LAYOUT_TYPES (1UL << 30) 375 #define FATTR4_WORD2_LAYOUT_BLKSIZE (1UL << 1) 376 #define FATTR4_WORD2_MDSTHRESHOLD (1UL << 4) 377 378 /* MDS threshold bitmap bits */ 379 #define THRESHOLD_RD (1UL << 0) 380 #define THRESHOLD_WR (1UL << 1) 381 #define THRESHOLD_RD_IO (1UL << 2) 382 #define THRESHOLD_WR_IO (1UL << 3) 383 384 #define NFSPROC4_NULL 0 385 #define NFSPROC4_COMPOUND 1 386 #define NFS4_VERSION 4 387 #define NFS4_MINOR_VERSION 0 388 389 #if defined(CONFIG_NFS_V4_1) 390 #define NFS4_MAX_MINOR_VERSION 1 391 #else 392 #define NFS4_MAX_MINOR_VERSION 0 393 #endif /* CONFIG_NFS_V4_1 */ 394 395 #define NFS4_DEBUG 1 396 397 /* Index of predefined Linux client operations */ 398 399 enum { 400 NFSPROC4_CLNT_NULL = 0, /* Unused */ 401 NFSPROC4_CLNT_READ, 402 NFSPROC4_CLNT_WRITE, 403 NFSPROC4_CLNT_COMMIT, 404 NFSPROC4_CLNT_OPEN, 405 NFSPROC4_CLNT_OPEN_CONFIRM, 406 NFSPROC4_CLNT_OPEN_NOATTR, 407 NFSPROC4_CLNT_OPEN_DOWNGRADE, 408 NFSPROC4_CLNT_CLOSE, 409 NFSPROC4_CLNT_SETATTR, 410 NFSPROC4_CLNT_FSINFO, 411 NFSPROC4_CLNT_RENEW, 412 NFSPROC4_CLNT_SETCLIENTID, 413 NFSPROC4_CLNT_SETCLIENTID_CONFIRM, 414 NFSPROC4_CLNT_LOCK, 415 NFSPROC4_CLNT_LOCKT, 416 NFSPROC4_CLNT_LOCKU, 417 NFSPROC4_CLNT_ACCESS, 418 NFSPROC4_CLNT_GETATTR, 419 NFSPROC4_CLNT_LOOKUP, 420 NFSPROC4_CLNT_LOOKUP_ROOT, 421 NFSPROC4_CLNT_REMOVE, 422 NFSPROC4_CLNT_RENAME, 423 NFSPROC4_CLNT_LINK, 424 NFSPROC4_CLNT_SYMLINK, 425 NFSPROC4_CLNT_CREATE, 426 NFSPROC4_CLNT_PATHCONF, 427 NFSPROC4_CLNT_STATFS, 428 NFSPROC4_CLNT_READLINK, 429 NFSPROC4_CLNT_READDIR, 430 NFSPROC4_CLNT_SERVER_CAPS, 431 NFSPROC4_CLNT_DELEGRETURN, 432 NFSPROC4_CLNT_GETACL, 433 NFSPROC4_CLNT_SETACL, 434 NFSPROC4_CLNT_FS_LOCATIONS, 435 NFSPROC4_CLNT_RELEASE_LOCKOWNER, 436 NFSPROC4_CLNT_SECINFO, 437 438 /* nfs41 */ 439 NFSPROC4_CLNT_EXCHANGE_ID, 440 NFSPROC4_CLNT_CREATE_SESSION, 441 NFSPROC4_CLNT_DESTROY_SESSION, 442 NFSPROC4_CLNT_SEQUENCE, 443 NFSPROC4_CLNT_GET_LEASE_TIME, 444 NFSPROC4_CLNT_RECLAIM_COMPLETE, 445 NFSPROC4_CLNT_LAYOUTGET, 446 NFSPROC4_CLNT_GETDEVICEINFO, 447 NFSPROC4_CLNT_LAYOUTCOMMIT, 448 NFSPROC4_CLNT_LAYOUTRETURN, 449 NFSPROC4_CLNT_SECINFO_NO_NAME, 450 NFSPROC4_CLNT_TEST_STATEID, 451 NFSPROC4_CLNT_FREE_STATEID, 452 NFSPROC4_CLNT_GETDEVICELIST, 453 NFSPROC4_CLNT_BIND_CONN_TO_SESSION, 454 NFSPROC4_CLNT_DESTROY_CLIENTID, 455 }; 456 457 /* nfs41 types */ 458 struct nfs4_sessionid { 459 unsigned char data[NFS4_MAX_SESSIONID_LEN]; 460 }; 461 462 /* Create Session Flags */ 463 #define SESSION4_PERSIST 0x001 464 #define SESSION4_BACK_CHAN 0x002 465 #define SESSION4_RDMA 0x004 466 467 #define SESSION4_FLAG_MASK_A 0x007 468 469 enum state_protect_how4 { 470 SP4_NONE = 0, 471 SP4_MACH_CRED = 1, 472 SP4_SSV = 2 473 }; 474 475 enum pnfs_layouttype { 476 LAYOUT_NFSV4_1_FILES = 1, 477 LAYOUT_OSD2_OBJECTS = 2, 478 LAYOUT_BLOCK_VOLUME = 3, 479 }; 480 481 /* used for both layout return and recall */ 482 enum pnfs_layoutreturn_type { 483 RETURN_FILE = 1, 484 RETURN_FSID = 2, 485 RETURN_ALL = 3 486 }; 487 488 enum pnfs_iomode { 489 IOMODE_READ = 1, 490 IOMODE_RW = 2, 491 IOMODE_ANY = 3, 492 }; 493 494 enum pnfs_notify_deviceid_type4 { 495 NOTIFY_DEVICEID4_CHANGE = 1 << 1, 496 NOTIFY_DEVICEID4_DELETE = 1 << 2, 497 }; 498 499 #define NFL4_UFLG_MASK 0x0000003F 500 #define NFL4_UFLG_DENSE 0x00000001 501 #define NFL4_UFLG_COMMIT_THRU_MDS 0x00000002 502 #define NFL4_UFLG_STRIPE_UNIT_SIZE_MASK 0xFFFFFFC0 503 504 /* Encoded in the loh_body field of type layouthint4 */ 505 enum filelayout_hint_care4 { 506 NFLH4_CARE_DENSE = NFL4_UFLG_DENSE, 507 NFLH4_CARE_COMMIT_THRU_MDS = NFL4_UFLG_COMMIT_THRU_MDS, 508 NFLH4_CARE_STRIPE_UNIT_SIZE = 0x00000040, 509 NFLH4_CARE_STRIPE_COUNT = 0x00000080 510 }; 511 512 #define NFS4_DEVICEID4_SIZE 16 513 514 struct nfs4_deviceid { 515 char data[NFS4_DEVICEID4_SIZE]; 516 }; 517 518 #endif 519