1 /* SPDX-License-Identifier: GPL-2.0 */
5 * NFSv4 protocol definitions.
7 * Copyright (c) 2002 The Regents of the University of Michigan.
10 * Kendrick Smith <kmsmith@umich.edu>
11 * Andy Adamson <andros@umich.edu>
16 #include <linux/list.h>
17 #include <linux/uidgid.h>
18 #include <uapi/linux/nfs4.h>
20 enum nfs4_acl_whotype
{
21 NFS4_ACL_WHO_NAMED
= 0,
24 NFS4_ACL_WHO_EVERYONE
,
40 struct nfs4_ace aces
[0];
43 #define NFS4_MAXLABELLEN 2048
52 typedef struct { char data
[NFS4_VERIFIER_SIZE
]; } nfs4_verifier
;
54 struct nfs4_stateid_struct
{
56 char data
[NFS4_STATEID_SIZE
];
59 char other
[NFS4_STATEID_OTHER_SIZE
];
60 } __attribute__ ((packed
));
64 NFS4_INVALID_STATEID_TYPE
= 0,
65 NFS4_SPECIAL_STATEID_TYPE
,
66 NFS4_OPEN_STATEID_TYPE
,
67 NFS4_LOCK_STATEID_TYPE
,
68 NFS4_DELEGATION_STATEID_TYPE
,
69 NFS4_LAYOUT_STATEID_TYPE
,
70 NFS4_PNFS_DS_STATEID_TYPE
,
71 NFS4_REVOKED_STATEID_TYPE
,
75 typedef struct nfs4_stateid_struct nfs4_stateid
;
96 OP_OPEN_DOWNGRADE
= 21,
111 OP_SETCLIENTID_CONFIRM
= 36,
114 OP_RELEASE_LOCKOWNER
= 39,
117 OP_BACKCHANNEL_CTL
= 40,
118 OP_BIND_CONN_TO_SESSION
= 41,
120 OP_CREATE_SESSION
= 43,
121 OP_DESTROY_SESSION
= 44,
122 OP_FREE_STATEID
= 45,
123 OP_GET_DIR_DELEGATION
= 46,
124 OP_GETDEVICEINFO
= 47,
125 OP_GETDEVICELIST
= 48,
126 OP_LAYOUTCOMMIT
= 49,
128 OP_LAYOUTRETURN
= 51,
129 OP_SECINFO_NO_NAME
= 52,
132 OP_TEST_STATEID
= 55,
133 OP_WANT_DELEGATION
= 56,
134 OP_DESTROY_CLIENTID
= 57,
135 OP_RECLAIM_COMPLETE
= 58,
145 OP_OFFLOAD_CANCEL
= 66,
146 OP_OFFLOAD_STATUS
= 67,
155 /*Defining first and last NFS4 operations implemented.
156 Needs to be updated if more operations are defined in future.*/
158 #define FIRST_NFS4_OP OP_ACCESS
159 #define LAST_NFS40_OP OP_RELEASE_LOCKOWNER
160 #define LAST_NFS41_OP OP_RECLAIM_COMPLETE
161 #define LAST_NFS42_OP OP_CLONE
162 #define LAST_NFS4_OP LAST_NFS42_OP
173 /* Unused/reserved 19 */
181 NFS4ERR_NAMETOOLONG
= 63,
182 NFS4ERR_NOTEMPTY
= 66,
185 NFS4ERR_BADHANDLE
= 10001,
186 NFS4ERR_BAD_COOKIE
= 10003,
187 NFS4ERR_NOTSUPP
= 10004,
188 NFS4ERR_TOOSMALL
= 10005,
189 NFS4ERR_SERVERFAULT
= 10006,
190 NFS4ERR_BADTYPE
= 10007,
191 NFS4ERR_DELAY
= 10008,
192 NFS4ERR_SAME
= 10009,
193 NFS4ERR_DENIED
= 10010,
194 NFS4ERR_EXPIRED
= 10011,
195 NFS4ERR_LOCKED
= 10012,
196 NFS4ERR_GRACE
= 10013,
197 NFS4ERR_FHEXPIRED
= 10014,
198 NFS4ERR_SHARE_DENIED
= 10015,
199 NFS4ERR_WRONGSEC
= 10016,
200 NFS4ERR_CLID_INUSE
= 10017,
201 NFS4ERR_RESOURCE
= 10018,
202 NFS4ERR_MOVED
= 10019,
203 NFS4ERR_NOFILEHANDLE
= 10020,
204 NFS4ERR_MINOR_VERS_MISMATCH
= 10021,
205 NFS4ERR_STALE_CLIENTID
= 10022,
206 NFS4ERR_STALE_STATEID
= 10023,
207 NFS4ERR_OLD_STATEID
= 10024,
208 NFS4ERR_BAD_STATEID
= 10025,
209 NFS4ERR_BAD_SEQID
= 10026,
210 NFS4ERR_NOT_SAME
= 10027,
211 NFS4ERR_LOCK_RANGE
= 10028,
212 NFS4ERR_SYMLINK
= 10029,
213 NFS4ERR_RESTOREFH
= 10030,
214 NFS4ERR_LEASE_MOVED
= 10031,
215 NFS4ERR_ATTRNOTSUPP
= 10032,
216 NFS4ERR_NO_GRACE
= 10033,
217 NFS4ERR_RECLAIM_BAD
= 10034,
218 NFS4ERR_RECLAIM_CONFLICT
= 10035,
219 NFS4ERR_BADXDR
= 10036,
220 NFS4ERR_LOCKS_HELD
= 10037,
221 NFS4ERR_OPENMODE
= 10038,
222 NFS4ERR_BADOWNER
= 10039,
223 NFS4ERR_BADCHAR
= 10040,
224 NFS4ERR_BADNAME
= 10041,
225 NFS4ERR_BAD_RANGE
= 10042,
226 NFS4ERR_LOCK_NOTSUPP
= 10043,
227 NFS4ERR_OP_ILLEGAL
= 10044,
228 NFS4ERR_DEADLOCK
= 10045,
229 NFS4ERR_FILE_OPEN
= 10046,
230 NFS4ERR_ADMIN_REVOKED
= 10047,
231 NFS4ERR_CB_PATH_DOWN
= 10048,
234 NFS4ERR_BADIOMODE
= 10049,
235 NFS4ERR_BADLAYOUT
= 10050,
236 NFS4ERR_BAD_SESSION_DIGEST
= 10051,
237 NFS4ERR_BADSESSION
= 10052,
238 NFS4ERR_BADSLOT
= 10053,
239 NFS4ERR_COMPLETE_ALREADY
= 10054,
240 NFS4ERR_CONN_NOT_BOUND_TO_SESSION
= 10055,
241 NFS4ERR_DELEG_ALREADY_WANTED
= 10056,
242 NFS4ERR_BACK_CHAN_BUSY
= 10057, /* backchan reqs outstanding */
243 NFS4ERR_LAYOUTTRYLATER
= 10058,
244 NFS4ERR_LAYOUTUNAVAILABLE
= 10059,
245 NFS4ERR_NOMATCHING_LAYOUT
= 10060,
246 NFS4ERR_RECALLCONFLICT
= 10061,
247 NFS4ERR_UNKNOWN_LAYOUTTYPE
= 10062,
248 NFS4ERR_SEQ_MISORDERED
= 10063, /* unexpected seq.id in req */
249 NFS4ERR_SEQUENCE_POS
= 10064, /* [CB_]SEQ. op not 1st op */
250 NFS4ERR_REQ_TOO_BIG
= 10065, /* request too big */
251 NFS4ERR_REP_TOO_BIG
= 10066, /* reply too big */
252 NFS4ERR_REP_TOO_BIG_TO_CACHE
= 10067, /* rep. not all cached */
253 NFS4ERR_RETRY_UNCACHED_REP
= 10068, /* retry & rep. uncached */
254 NFS4ERR_UNSAFE_COMPOUND
= 10069, /* retry/recovery too hard */
255 NFS4ERR_TOO_MANY_OPS
= 10070, /* too many ops in [CB_]COMP */
256 NFS4ERR_OP_NOT_IN_SESSION
= 10071, /* op needs [CB_]SEQ. op */
257 NFS4ERR_HASH_ALG_UNSUPP
= 10072, /* hash alg. not supp. */
258 /* Error 10073 is unused. */
259 NFS4ERR_CLIENTID_BUSY
= 10074, /* clientid has state */
260 NFS4ERR_PNFS_IO_HOLE
= 10075, /* IO to _SPARSE file hole */
261 NFS4ERR_SEQ_FALSE_RETRY
= 10076, /* retry not original */
262 NFS4ERR_BAD_HIGH_SLOT
= 10077, /* sequence arg bad */
263 NFS4ERR_DEADSESSION
= 10078, /* persistent session dead */
264 NFS4ERR_ENCR_ALG_UNSUPP
= 10079, /* SSV alg mismatch */
265 NFS4ERR_PNFS_NO_LAYOUT
= 10080, /* direct I/O with no layout */
266 NFS4ERR_NOT_ONLY_OP
= 10081, /* bad compound */
267 NFS4ERR_WRONG_CRED
= 10082, /* permissions:state change */
268 NFS4ERR_WRONG_TYPE
= 10083, /* current operation mismatch */
269 NFS4ERR_DIRDELEG_UNAVAIL
= 10084, /* no directory delegation */
270 NFS4ERR_REJECT_DELEG
= 10085, /* on callback */
271 NFS4ERR_RETURNCONFLICT
= 10086, /* outstanding layoutreturn */
272 NFS4ERR_DELEG_REVOKED
= 10087, /* deleg./layout revoked */
275 NFS4ERR_PARTNER_NOTSUPP
= 10088,
276 NFS4ERR_PARTNER_NO_AUTH
= 10089,
277 NFS4ERR_UNION_NOTSUPP
= 10090,
278 NFS4ERR_OFFLOAD_DENIED
= 10091,
279 NFS4ERR_WRONG_LFS
= 10092,
280 NFS4ERR_BADLABEL
= 10093,
281 NFS4ERR_OFFLOAD_NO_REQS
= 10094,
284 static inline bool seqid_mutating_err(u32 err
)
286 /* See RFC 7530, section 9.1.7 */
288 case NFS4ERR_STALE_CLIENTID
:
289 case NFS4ERR_STALE_STATEID
:
290 case NFS4ERR_BAD_STATEID
:
291 case NFS4ERR_BAD_SEQID
:
293 case NFS4ERR_RESOURCE
:
294 case NFS4ERR_NOFILEHANDLE
:
302 * Note: NF4BAD is not actually part of the protocol; it is just used
303 * internally by nfsd.
307 NF4REG
= 1, /* Regular File */
308 NF4DIR
= 2, /* Directory */
309 NF4BLK
= 3, /* Special File - block device */
310 NF4CHR
= 4, /* Special File - character device */
311 NF4LNK
= 5, /* Symbolic Link */
312 NF4SOCK
= 6, /* Special File - socket */
313 NF4FIFO
= 7, /* Special File - fifo */
314 NF4ATTRDIR
= 8, /* Attribute Directory */
315 NF4NAMEDATTR
= 9 /* Named Attribute */
318 enum open_claim_type4
{
319 NFS4_OPEN_CLAIM_NULL
= 0,
320 NFS4_OPEN_CLAIM_PREVIOUS
= 1,
321 NFS4_OPEN_CLAIM_DELEGATE_CUR
= 2,
322 NFS4_OPEN_CLAIM_DELEGATE_PREV
= 3,
323 NFS4_OPEN_CLAIM_FH
= 4, /* 4.1 */
324 NFS4_OPEN_CLAIM_DELEG_CUR_FH
= 5, /* 4.1 */
325 NFS4_OPEN_CLAIM_DELEG_PREV_FH
= 6, /* 4.1 */
329 NFS4_OPEN_NOCREATE
= 0,
334 NFS4_CREATE_UNCHECKED
= 0,
335 NFS4_CREATE_GUARDED
= 1,
336 NFS4_CREATE_EXCLUSIVE
= 2,
338 * New to NFSv4.1. If session is persistent,
339 * GUARDED4 MUST be used. Otherwise, use
340 * EXCLUSIVE4_1 instead of EXCLUSIVE4.
342 NFS4_CREATE_EXCLUSIVE4_1
= 3
347 NFS4_LIMIT_BLOCKS
= 2
350 enum open_delegation_type4
{
351 NFS4_OPEN_DELEGATE_NONE
= 0,
352 NFS4_OPEN_DELEGATE_READ
= 1,
353 NFS4_OPEN_DELEGATE_WRITE
= 2,
354 NFS4_OPEN_DELEGATE_NONE_EXT
= 3, /* 4.1 */
357 enum why_no_delegation4
{ /* new to v4.1 */
361 WND4_NOT_SUPP_FTYPE
= 3,
362 WND4_WRITE_DELEG_NOT_SUPP_FTYPE
= 4,
363 WND4_NOT_SUPP_UPGRADE
= 5,
364 WND4_NOT_SUPP_DOWNGRADE
= 6,
377 enum change_attr_type4
{
378 NFS4_CHANGE_TYPE_IS_MONOTONIC_INCR
= 0,
379 NFS4_CHANGE_TYPE_IS_VERSION_COUNTER
= 1,
380 NFS4_CHANGE_TYPE_IS_VERSION_COUNTER_NOPNFS
= 2,
381 NFS4_CHANGE_TYPE_IS_TIME_METADATA
= 3,
382 NFS4_CHANGE_TYPE_IS_UNDEFINED
= 4
385 /* Mandatory Attributes */
386 #define FATTR4_WORD0_SUPPORTED_ATTRS (1UL << 0)
387 #define FATTR4_WORD0_TYPE (1UL << 1)
388 #define FATTR4_WORD0_FH_EXPIRE_TYPE (1UL << 2)
389 #define FATTR4_WORD0_CHANGE (1UL << 3)
390 #define FATTR4_WORD0_SIZE (1UL << 4)
391 #define FATTR4_WORD0_LINK_SUPPORT (1UL << 5)
392 #define FATTR4_WORD0_SYMLINK_SUPPORT (1UL << 6)
393 #define FATTR4_WORD0_NAMED_ATTR (1UL << 7)
394 #define FATTR4_WORD0_FSID (1UL << 8)
395 #define FATTR4_WORD0_UNIQUE_HANDLES (1UL << 9)
396 #define FATTR4_WORD0_LEASE_TIME (1UL << 10)
397 #define FATTR4_WORD0_RDATTR_ERROR (1UL << 11)
398 /* Mandatory in NFSv4.1 */
399 #define FATTR4_WORD2_SUPPATTR_EXCLCREAT (1UL << 11)
401 /* Recommended Attributes */
402 #define FATTR4_WORD0_ACL (1UL << 12)
403 #define FATTR4_WORD0_ACLSUPPORT (1UL << 13)
404 #define FATTR4_WORD0_ARCHIVE (1UL << 14)
405 #define FATTR4_WORD0_CANSETTIME (1UL << 15)
406 #define FATTR4_WORD0_CASE_INSENSITIVE (1UL << 16)
407 #define FATTR4_WORD0_CASE_PRESERVING (1UL << 17)
408 #define FATTR4_WORD0_CHOWN_RESTRICTED (1UL << 18)
409 #define FATTR4_WORD0_FILEHANDLE (1UL << 19)
410 #define FATTR4_WORD0_FILEID (1UL << 20)
411 #define FATTR4_WORD0_FILES_AVAIL (1UL << 21)
412 #define FATTR4_WORD0_FILES_FREE (1UL << 22)
413 #define FATTR4_WORD0_FILES_TOTAL (1UL << 23)
414 #define FATTR4_WORD0_FS_LOCATIONS (1UL << 24)
415 #define FATTR4_WORD0_HIDDEN (1UL << 25)
416 #define FATTR4_WORD0_HOMOGENEOUS (1UL << 26)
417 #define FATTR4_WORD0_MAXFILESIZE (1UL << 27)
418 #define FATTR4_WORD0_MAXLINK (1UL << 28)
419 #define FATTR4_WORD0_MAXNAME (1UL << 29)
420 #define FATTR4_WORD0_MAXREAD (1UL << 30)
421 #define FATTR4_WORD0_MAXWRITE (1UL << 31)
422 #define FATTR4_WORD1_MIMETYPE (1UL << 0)
423 #define FATTR4_WORD1_MODE (1UL << 1)
424 #define FATTR4_WORD1_NO_TRUNC (1UL << 2)
425 #define FATTR4_WORD1_NUMLINKS (1UL << 3)
426 #define FATTR4_WORD1_OWNER (1UL << 4)
427 #define FATTR4_WORD1_OWNER_GROUP (1UL << 5)
428 #define FATTR4_WORD1_QUOTA_HARD (1UL << 6)
429 #define FATTR4_WORD1_QUOTA_SOFT (1UL << 7)
430 #define FATTR4_WORD1_QUOTA_USED (1UL << 8)
431 #define FATTR4_WORD1_RAWDEV (1UL << 9)
432 #define FATTR4_WORD1_SPACE_AVAIL (1UL << 10)
433 #define FATTR4_WORD1_SPACE_FREE (1UL << 11)
434 #define FATTR4_WORD1_SPACE_TOTAL (1UL << 12)
435 #define FATTR4_WORD1_SPACE_USED (1UL << 13)
436 #define FATTR4_WORD1_SYSTEM (1UL << 14)
437 #define FATTR4_WORD1_TIME_ACCESS (1UL << 15)
438 #define FATTR4_WORD1_TIME_ACCESS_SET (1UL << 16)
439 #define FATTR4_WORD1_TIME_BACKUP (1UL << 17)
440 #define FATTR4_WORD1_TIME_CREATE (1UL << 18)
441 #define FATTR4_WORD1_TIME_DELTA (1UL << 19)
442 #define FATTR4_WORD1_TIME_METADATA (1UL << 20)
443 #define FATTR4_WORD1_TIME_MODIFY (1UL << 21)
444 #define FATTR4_WORD1_TIME_MODIFY_SET (1UL << 22)
445 #define FATTR4_WORD1_MOUNTED_ON_FILEID (1UL << 23)
446 #define FATTR4_WORD1_FS_LAYOUT_TYPES (1UL << 30)
447 #define FATTR4_WORD2_LAYOUT_TYPES (1UL << 0)
448 #define FATTR4_WORD2_LAYOUT_BLKSIZE (1UL << 1)
449 #define FATTR4_WORD2_MDSTHRESHOLD (1UL << 4)
450 #define FATTR4_WORD2_CLONE_BLKSIZE (1UL << 13)
451 #define FATTR4_WORD2_CHANGE_ATTR_TYPE (1UL << 15)
452 #define FATTR4_WORD2_SECURITY_LABEL (1UL << 16)
453 #define FATTR4_WORD2_MODE_UMASK (1UL << 17)
455 /* MDS threshold bitmap bits */
456 #define THRESHOLD_RD (1UL << 0)
457 #define THRESHOLD_WR (1UL << 1)
458 #define THRESHOLD_RD_IO (1UL << 2)
459 #define THRESHOLD_WR_IO (1UL << 3)
461 #define NFSPROC4_NULL 0
462 #define NFSPROC4_COMPOUND 1
463 #define NFS4_VERSION 4
464 #define NFS4_MINOR_VERSION 0
469 * Index of predefined Linux client operations
471 * To ensure that /proc/net/rpc/nfs remains correctly ordered, please
472 * append only to this enum when adding new client operations.
476 NFSPROC4_CLNT_NULL
= 0, /* Unused */
479 NFSPROC4_CLNT_COMMIT
,
481 NFSPROC4_CLNT_OPEN_CONFIRM
,
482 NFSPROC4_CLNT_OPEN_NOATTR
,
483 NFSPROC4_CLNT_OPEN_DOWNGRADE
,
485 NFSPROC4_CLNT_SETATTR
,
486 NFSPROC4_CLNT_FSINFO
,
488 NFSPROC4_CLNT_SETCLIENTID
,
489 NFSPROC4_CLNT_SETCLIENTID_CONFIRM
,
493 NFSPROC4_CLNT_ACCESS
,
494 NFSPROC4_CLNT_GETATTR
,
495 NFSPROC4_CLNT_LOOKUP
,
496 NFSPROC4_CLNT_LOOKUP_ROOT
,
497 NFSPROC4_CLNT_REMOVE
,
498 NFSPROC4_CLNT_RENAME
,
500 NFSPROC4_CLNT_SYMLINK
,
501 NFSPROC4_CLNT_CREATE
,
502 NFSPROC4_CLNT_PATHCONF
,
503 NFSPROC4_CLNT_STATFS
,
504 NFSPROC4_CLNT_READLINK
,
505 NFSPROC4_CLNT_READDIR
,
506 NFSPROC4_CLNT_SERVER_CAPS
,
507 NFSPROC4_CLNT_DELEGRETURN
,
508 NFSPROC4_CLNT_GETACL
,
509 NFSPROC4_CLNT_SETACL
,
510 NFSPROC4_CLNT_FS_LOCATIONS
,
511 NFSPROC4_CLNT_RELEASE_LOCKOWNER
,
512 NFSPROC4_CLNT_SECINFO
,
513 NFSPROC4_CLNT_FSID_PRESENT
,
515 NFSPROC4_CLNT_EXCHANGE_ID
,
516 NFSPROC4_CLNT_CREATE_SESSION
,
517 NFSPROC4_CLNT_DESTROY_SESSION
,
518 NFSPROC4_CLNT_SEQUENCE
,
519 NFSPROC4_CLNT_GET_LEASE_TIME
,
520 NFSPROC4_CLNT_RECLAIM_COMPLETE
,
521 NFSPROC4_CLNT_LAYOUTGET
,
522 NFSPROC4_CLNT_GETDEVICEINFO
,
523 NFSPROC4_CLNT_LAYOUTCOMMIT
,
524 NFSPROC4_CLNT_LAYOUTRETURN
,
525 NFSPROC4_CLNT_SECINFO_NO_NAME
,
526 NFSPROC4_CLNT_TEST_STATEID
,
527 NFSPROC4_CLNT_FREE_STATEID
,
528 NFSPROC4_CLNT_GETDEVICELIST
,
529 NFSPROC4_CLNT_BIND_CONN_TO_SESSION
,
530 NFSPROC4_CLNT_DESTROY_CLIENTID
,
533 NFSPROC4_CLNT_ALLOCATE
,
534 NFSPROC4_CLNT_DEALLOCATE
,
535 NFSPROC4_CLNT_LAYOUTSTATS
,
538 NFSPROC4_CLNT_OFFLOAD_CANCEL
,
540 NFSPROC4_CLNT_LOOKUPP
,
541 NFSPROC4_CLNT_LAYOUTERROR
,
545 struct nfs4_sessionid
{
546 unsigned char data
[NFS4_MAX_SESSIONID_LEN
];
549 /* Create Session Flags */
550 #define SESSION4_PERSIST 0x001
551 #define SESSION4_BACK_CHAN 0x002
552 #define SESSION4_RDMA 0x004
554 #define SESSION4_FLAG_MASK_A 0x007
556 enum state_protect_how4
{
562 enum pnfs_layouttype
{
563 LAYOUT_NFSV4_1_FILES
= 1,
564 LAYOUT_OSD2_OBJECTS
= 2,
565 LAYOUT_BLOCK_VOLUME
= 3,
566 LAYOUT_FLEX_FILES
= 4,
571 /* used for both layout return and recall */
572 enum pnfs_layoutreturn_type
{
584 enum pnfs_notify_deviceid_type4
{
585 NOTIFY_DEVICEID4_CHANGE
= 1 << 1,
586 NOTIFY_DEVICEID4_DELETE
= 1 << 2,
589 enum pnfs_block_volume_type
{
590 PNFS_BLOCK_VOLUME_SIMPLE
= 0,
591 PNFS_BLOCK_VOLUME_SLICE
= 1,
592 PNFS_BLOCK_VOLUME_CONCAT
= 2,
593 PNFS_BLOCK_VOLUME_STRIPE
= 3,
594 PNFS_BLOCK_VOLUME_SCSI
= 4,
597 enum pnfs_block_extent_state
{
598 PNFS_BLOCK_READWRITE_DATA
= 0,
599 PNFS_BLOCK_READ_DATA
= 1,
600 PNFS_BLOCK_INVALID_DATA
= 2,
601 PNFS_BLOCK_NONE_DATA
= 3,
604 /* on the wire size of a block layout extent */
605 #define PNFS_BLOCK_EXTENT_SIZE \
606 (7 * sizeof(__be32) + NFS4_DEVICEID4_SIZE)
608 /* on the wire size of a scsi commit range */
609 #define PNFS_SCSI_RANGE_SIZE \
613 PS_CODE_SET_BINARY
= 1,
614 PS_CODE_SET_ASCII
= 2,
618 enum scsi_designator_type
{
619 PS_DESIGNATOR_T10
= 1,
620 PS_DESIGNATOR_EUI64
= 2,
621 PS_DESIGNATOR_NAA
= 3,
622 PS_DESIGNATOR_NAME
= 8
625 #define NFL4_UFLG_MASK 0x0000003F
626 #define NFL4_UFLG_DENSE 0x00000001
627 #define NFL4_UFLG_COMMIT_THRU_MDS 0x00000002
628 #define NFL4_UFLG_STRIPE_UNIT_SIZE_MASK 0xFFFFFFC0
630 /* Encoded in the loh_body field of type layouthint4 */
631 enum filelayout_hint_care4
{
632 NFLH4_CARE_DENSE
= NFL4_UFLG_DENSE
,
633 NFLH4_CARE_COMMIT_THRU_MDS
= NFL4_UFLG_COMMIT_THRU_MDS
,
634 NFLH4_CARE_STRIPE_UNIT_SIZE
= 0x00000040,
635 NFLH4_CARE_STRIPE_COUNT
= 0x00000080
638 #define NFS4_DEVICEID4_SIZE 16
640 struct nfs4_deviceid
{
641 char data
[NFS4_DEVICEID4_SIZE
];
645 NFS4_CONTENT_DATA
= 0,
646 NFS4_CONTENT_HOLE
= 1,
649 enum pnfs_update_layout_reason
{
650 PNFS_UPDATE_LAYOUT_UNKNOWN
= 0,
651 PNFS_UPDATE_LAYOUT_NO_PNFS
,
652 PNFS_UPDATE_LAYOUT_RD_ZEROLEN
,
653 PNFS_UPDATE_LAYOUT_MDSTHRESH
,
654 PNFS_UPDATE_LAYOUT_NOMEM
,
655 PNFS_UPDATE_LAYOUT_BULK_RECALL
,
656 PNFS_UPDATE_LAYOUT_IO_TEST_FAIL
,
657 PNFS_UPDATE_LAYOUT_FOUND_CACHED
,
658 PNFS_UPDATE_LAYOUT_RETURN
,
659 PNFS_UPDATE_LAYOUT_RETRY
,
660 PNFS_UPDATE_LAYOUT_BLOCKED
,
661 PNFS_UPDATE_LAYOUT_INVALID_OPEN
,
662 PNFS_UPDATE_LAYOUT_SEND_LAYOUTGET
,
665 #define NFS4_OP_MAP_NUM_LONGS \
666 DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
667 #define NFS4_OP_MAP_NUM_WORDS \
668 (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
671 unsigned long longs
[NFS4_OP_MAP_NUM_LONGS
];
672 u32 words
[NFS4_OP_MAP_NUM_WORDS
];