2 * Copyright (c) 2014 Anna Schumaker <Anna.Schumaker@Netapp.com>
4 #ifndef __LINUX_FS_NFS_NFS4_2XDR_H
5 #define __LINUX_FS_NFS_NFS4_2XDR_H
9 #define encode_fallocate_maxsz (encode_stateid_maxsz + \
12 #define NFS42_WRITE_RES_SIZE (1 /* wr_callback_id size */ +\
13 XDR_QUADLEN(NFS4_STATEID_SIZE) + \
15 1 /* wr_committed */ + \
16 XDR_QUADLEN(NFS4_VERIFIER_SIZE))
17 #define encode_allocate_maxsz (op_encode_hdr_maxsz + \
18 encode_fallocate_maxsz)
19 #define decode_allocate_maxsz (op_decode_hdr_maxsz)
20 #define encode_copy_maxsz (op_encode_hdr_maxsz + \
21 XDR_QUADLEN(NFS4_STATEID_SIZE) + \
22 XDR_QUADLEN(NFS4_STATEID_SIZE) + \
23 2 + 2 + 2 + 1 + 1 + 1)
24 #define decode_copy_maxsz (op_decode_hdr_maxsz + \
25 NFS42_WRITE_RES_SIZE + \
26 1 /* cr_consecutive */ + \
27 1 /* cr_synchronous */)
28 #define encode_deallocate_maxsz (op_encode_hdr_maxsz + \
29 encode_fallocate_maxsz)
30 #define decode_deallocate_maxsz (op_decode_hdr_maxsz)
31 #define encode_seek_maxsz (op_encode_hdr_maxsz + \
32 encode_stateid_maxsz + \
35 #define decode_seek_maxsz (op_decode_hdr_maxsz + \
40 #define encode_io_info_maxsz 4
41 #define encode_layoutstats_maxsz (op_decode_hdr_maxsz + \
44 encode_stateid_maxsz + \
45 encode_io_info_maxsz + \
46 encode_io_info_maxsz + \
47 1 /* opaque devaddr4 length */ + \
48 XDR_QUADLEN(PNFS_LAYOUTSTATS_MAXSIZE))
49 #define decode_layoutstats_maxsz (op_decode_hdr_maxsz)
50 #define encode_clone_maxsz (encode_stateid_maxsz + \
51 encode_stateid_maxsz + \
52 2 /* src offset */ + \
53 2 /* dst offset */ + \
55 #define decode_clone_maxsz (op_decode_hdr_maxsz)
57 #define NFS4_enc_allocate_sz (compound_encode_hdr_maxsz + \
58 encode_putfh_maxsz + \
59 encode_allocate_maxsz + \
61 #define NFS4_dec_allocate_sz (compound_decode_hdr_maxsz + \
62 decode_putfh_maxsz + \
63 decode_allocate_maxsz + \
65 #define NFS4_enc_copy_sz (compound_encode_hdr_maxsz + \
66 encode_putfh_maxsz + \
67 encode_savefh_maxsz + \
68 encode_putfh_maxsz + \
70 #define NFS4_dec_copy_sz (compound_decode_hdr_maxsz + \
71 decode_putfh_maxsz + \
72 decode_savefh_maxsz + \
73 decode_putfh_maxsz + \
75 #define NFS4_enc_deallocate_sz (compound_encode_hdr_maxsz + \
76 encode_putfh_maxsz + \
77 encode_deallocate_maxsz + \
79 #define NFS4_dec_deallocate_sz (compound_decode_hdr_maxsz + \
80 decode_putfh_maxsz + \
81 decode_deallocate_maxsz + \
83 #define NFS4_enc_seek_sz (compound_encode_hdr_maxsz + \
84 encode_putfh_maxsz + \
86 #define NFS4_dec_seek_sz (compound_decode_hdr_maxsz + \
87 decode_putfh_maxsz + \
89 #define NFS4_enc_layoutstats_sz (compound_encode_hdr_maxsz + \
90 encode_sequence_maxsz + \
91 encode_putfh_maxsz + \
92 PNFS_LAYOUTSTATS_MAXDEV * encode_layoutstats_maxsz)
93 #define NFS4_dec_layoutstats_sz (compound_decode_hdr_maxsz + \
94 decode_sequence_maxsz + \
95 decode_putfh_maxsz + \
96 PNFS_LAYOUTSTATS_MAXDEV * decode_layoutstats_maxsz)
97 #define NFS4_enc_clone_sz (compound_encode_hdr_maxsz + \
98 encode_sequence_maxsz + \
99 encode_putfh_maxsz + \
100 encode_savefh_maxsz + \
101 encode_putfh_maxsz + \
102 encode_clone_maxsz + \
103 encode_getattr_maxsz)
104 #define NFS4_dec_clone_sz (compound_decode_hdr_maxsz + \
105 decode_sequence_maxsz + \
106 decode_putfh_maxsz + \
107 decode_savefh_maxsz + \
108 decode_putfh_maxsz + \
109 decode_clone_maxsz + \
110 decode_getattr_maxsz)
112 static void encode_fallocate(struct xdr_stream
*xdr
,
113 struct nfs42_falloc_args
*args
)
115 encode_nfs4_stateid(xdr
, &args
->falloc_stateid
);
116 encode_uint64(xdr
, args
->falloc_offset
);
117 encode_uint64(xdr
, args
->falloc_length
);
120 static void encode_allocate(struct xdr_stream
*xdr
,
121 struct nfs42_falloc_args
*args
,
122 struct compound_hdr
*hdr
)
124 encode_op_hdr(xdr
, OP_ALLOCATE
, decode_allocate_maxsz
, hdr
);
125 encode_fallocate(xdr
, args
);
128 static void encode_copy(struct xdr_stream
*xdr
,
129 struct nfs42_copy_args
*args
,
130 struct compound_hdr
*hdr
)
132 encode_op_hdr(xdr
, OP_COPY
, decode_copy_maxsz
, hdr
);
133 encode_nfs4_stateid(xdr
, &args
->src_stateid
);
134 encode_nfs4_stateid(xdr
, &args
->dst_stateid
);
136 encode_uint64(xdr
, args
->src_pos
);
137 encode_uint64(xdr
, args
->dst_pos
);
138 encode_uint64(xdr
, args
->count
);
140 encode_uint32(xdr
, 1); /* consecutive = true */
141 encode_uint32(xdr
, 1); /* synchronous = true */
142 encode_uint32(xdr
, 0); /* src server list */
145 static void encode_deallocate(struct xdr_stream
*xdr
,
146 struct nfs42_falloc_args
*args
,
147 struct compound_hdr
*hdr
)
149 encode_op_hdr(xdr
, OP_DEALLOCATE
, decode_deallocate_maxsz
, hdr
);
150 encode_fallocate(xdr
, args
);
153 static void encode_seek(struct xdr_stream
*xdr
,
154 struct nfs42_seek_args
*args
,
155 struct compound_hdr
*hdr
)
157 encode_op_hdr(xdr
, OP_SEEK
, decode_seek_maxsz
, hdr
);
158 encode_nfs4_stateid(xdr
, &args
->sa_stateid
);
159 encode_uint64(xdr
, args
->sa_offset
);
160 encode_uint32(xdr
, args
->sa_what
);
163 static void encode_layoutstats(struct xdr_stream
*xdr
,
164 struct nfs42_layoutstat_args
*args
,
165 struct nfs42_layoutstat_devinfo
*devinfo
,
166 struct compound_hdr
*hdr
)
170 encode_op_hdr(xdr
, OP_LAYOUTSTATS
, decode_layoutstats_maxsz
, hdr
);
171 p
= reserve_space(xdr
, 8 + 8);
172 p
= xdr_encode_hyper(p
, devinfo
->offset
);
173 p
= xdr_encode_hyper(p
, devinfo
->length
);
174 encode_nfs4_stateid(xdr
, &args
->stateid
);
175 p
= reserve_space(xdr
, 4*8 + NFS4_DEVICEID4_SIZE
+ 4);
176 p
= xdr_encode_hyper(p
, devinfo
->read_count
);
177 p
= xdr_encode_hyper(p
, devinfo
->read_bytes
);
178 p
= xdr_encode_hyper(p
, devinfo
->write_count
);
179 p
= xdr_encode_hyper(p
, devinfo
->write_bytes
);
180 p
= xdr_encode_opaque_fixed(p
, devinfo
->dev_id
.data
,
181 NFS4_DEVICEID4_SIZE
);
182 /* Encode layoutupdate4 */
183 *p
++ = cpu_to_be32(devinfo
->layout_type
);
184 if (devinfo
->layoutstats_encode
!= NULL
)
185 devinfo
->layoutstats_encode(xdr
, args
, devinfo
);
187 encode_uint32(xdr
, 0);
190 static void encode_clone(struct xdr_stream
*xdr
,
191 struct nfs42_clone_args
*args
,
192 struct compound_hdr
*hdr
)
196 encode_op_hdr(xdr
, OP_CLONE
, decode_clone_maxsz
, hdr
);
197 encode_nfs4_stateid(xdr
, &args
->src_stateid
);
198 encode_nfs4_stateid(xdr
, &args
->dst_stateid
);
199 p
= reserve_space(xdr
, 3*8);
200 p
= xdr_encode_hyper(p
, args
->src_offset
);
201 p
= xdr_encode_hyper(p
, args
->dst_offset
);
202 xdr_encode_hyper(p
, args
->count
);
206 * Encode ALLOCATE request
208 static void nfs4_xdr_enc_allocate(struct rpc_rqst
*req
,
209 struct xdr_stream
*xdr
,
210 struct nfs42_falloc_args
*args
)
212 struct compound_hdr hdr
= {
213 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
216 encode_compound_hdr(xdr
, req
, &hdr
);
217 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
218 encode_putfh(xdr
, args
->falloc_fh
, &hdr
);
219 encode_allocate(xdr
, args
, &hdr
);
220 encode_getfattr(xdr
, args
->falloc_bitmask
, &hdr
);
225 * Encode COPY request
227 static void nfs4_xdr_enc_copy(struct rpc_rqst
*req
,
228 struct xdr_stream
*xdr
,
229 struct nfs42_copy_args
*args
)
231 struct compound_hdr hdr
= {
232 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
235 encode_compound_hdr(xdr
, req
, &hdr
);
236 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
237 encode_putfh(xdr
, args
->src_fh
, &hdr
);
238 encode_savefh(xdr
, &hdr
);
239 encode_putfh(xdr
, args
->dst_fh
, &hdr
);
240 encode_copy(xdr
, args
, &hdr
);
245 * Encode DEALLOCATE request
247 static void nfs4_xdr_enc_deallocate(struct rpc_rqst
*req
,
248 struct xdr_stream
*xdr
,
249 struct nfs42_falloc_args
*args
)
251 struct compound_hdr hdr
= {
252 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
255 encode_compound_hdr(xdr
, req
, &hdr
);
256 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
257 encode_putfh(xdr
, args
->falloc_fh
, &hdr
);
258 encode_deallocate(xdr
, args
, &hdr
);
259 encode_getfattr(xdr
, args
->falloc_bitmask
, &hdr
);
264 * Encode SEEK request
266 static void nfs4_xdr_enc_seek(struct rpc_rqst
*req
,
267 struct xdr_stream
*xdr
,
268 struct nfs42_seek_args
*args
)
270 struct compound_hdr hdr
= {
271 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
274 encode_compound_hdr(xdr
, req
, &hdr
);
275 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
276 encode_putfh(xdr
, args
->sa_fh
, &hdr
);
277 encode_seek(xdr
, args
, &hdr
);
282 * Encode LAYOUTSTATS request
284 static void nfs4_xdr_enc_layoutstats(struct rpc_rqst
*req
,
285 struct xdr_stream
*xdr
,
286 struct nfs42_layoutstat_args
*args
)
290 struct compound_hdr hdr
= {
291 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
294 encode_compound_hdr(xdr
, req
, &hdr
);
295 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
296 encode_putfh(xdr
, args
->fh
, &hdr
);
297 WARN_ON(args
->num_dev
> PNFS_LAYOUTSTATS_MAXDEV
);
298 for (i
= 0; i
< args
->num_dev
; i
++)
299 encode_layoutstats(xdr
, args
, &args
->devinfo
[i
], &hdr
);
304 * Encode CLONE request
306 static void nfs4_xdr_enc_clone(struct rpc_rqst
*req
,
307 struct xdr_stream
*xdr
,
308 struct nfs42_clone_args
*args
)
310 struct compound_hdr hdr
= {
311 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
314 encode_compound_hdr(xdr
, req
, &hdr
);
315 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
316 encode_putfh(xdr
, args
->src_fh
, &hdr
);
317 encode_savefh(xdr
, &hdr
);
318 encode_putfh(xdr
, args
->dst_fh
, &hdr
);
319 encode_clone(xdr
, args
, &hdr
);
320 encode_getfattr(xdr
, args
->dst_bitmask
, &hdr
);
324 static int decode_allocate(struct xdr_stream
*xdr
, struct nfs42_falloc_res
*res
)
326 return decode_op_hdr(xdr
, OP_ALLOCATE
);
329 static int decode_write_response(struct xdr_stream
*xdr
,
330 struct nfs42_write_res
*res
)
335 p
= xdr_inline_decode(xdr
, 4 + 8 + 4);
339 stateids
= be32_to_cpup(p
++);
340 p
= xdr_decode_hyper(p
, &res
->count
);
341 res
->verifier
.committed
= be32_to_cpup(p
);
342 return decode_verifier(xdr
, &res
->verifier
.verifier
);
345 print_overflow_msg(__func__
, xdr
);
349 static int decode_copy_requirements(struct xdr_stream
*xdr
,
350 struct nfs42_copy_res
*res
) {
353 p
= xdr_inline_decode(xdr
, 4 + 4);
357 res
->consecutive
= be32_to_cpup(p
++);
358 res
->synchronous
= be32_to_cpup(p
++);
361 print_overflow_msg(__func__
, xdr
);
365 static int decode_copy(struct xdr_stream
*xdr
, struct nfs42_copy_res
*res
)
369 status
= decode_op_hdr(xdr
, OP_COPY
);
370 if (status
== NFS4ERR_OFFLOAD_NO_REQS
) {
371 status
= decode_copy_requirements(xdr
, res
);
374 return NFS4ERR_OFFLOAD_NO_REQS
;
378 status
= decode_write_response(xdr
, &res
->write_res
);
382 return decode_copy_requirements(xdr
, res
);
385 static int decode_deallocate(struct xdr_stream
*xdr
, struct nfs42_falloc_res
*res
)
387 return decode_op_hdr(xdr
, OP_DEALLOCATE
);
390 static int decode_seek(struct xdr_stream
*xdr
, struct nfs42_seek_res
*res
)
395 status
= decode_op_hdr(xdr
, OP_SEEK
);
399 p
= xdr_inline_decode(xdr
, 4 + 8);
403 res
->sr_eof
= be32_to_cpup(p
++);
404 p
= xdr_decode_hyper(p
, &res
->sr_offset
);
408 print_overflow_msg(__func__
, xdr
);
412 static int decode_layoutstats(struct xdr_stream
*xdr
)
414 return decode_op_hdr(xdr
, OP_LAYOUTSTATS
);
417 static int decode_clone(struct xdr_stream
*xdr
)
419 return decode_op_hdr(xdr
, OP_CLONE
);
423 * Decode ALLOCATE request
425 static int nfs4_xdr_dec_allocate(struct rpc_rqst
*rqstp
,
426 struct xdr_stream
*xdr
,
427 struct nfs42_falloc_res
*res
)
429 struct compound_hdr hdr
;
432 status
= decode_compound_hdr(xdr
, &hdr
);
435 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
438 status
= decode_putfh(xdr
);
441 status
= decode_allocate(xdr
, res
);
444 decode_getfattr(xdr
, res
->falloc_fattr
, res
->falloc_server
);
450 * Decode COPY response
452 static int nfs4_xdr_dec_copy(struct rpc_rqst
*rqstp
,
453 struct xdr_stream
*xdr
,
454 struct nfs42_copy_res
*res
)
456 struct compound_hdr hdr
;
459 status
= decode_compound_hdr(xdr
, &hdr
);
462 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
465 status
= decode_putfh(xdr
);
468 status
= decode_savefh(xdr
);
471 status
= decode_putfh(xdr
);
474 status
= decode_copy(xdr
, res
);
480 * Decode DEALLOCATE request
482 static int nfs4_xdr_dec_deallocate(struct rpc_rqst
*rqstp
,
483 struct xdr_stream
*xdr
,
484 struct nfs42_falloc_res
*res
)
486 struct compound_hdr hdr
;
489 status
= decode_compound_hdr(xdr
, &hdr
);
492 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
495 status
= decode_putfh(xdr
);
498 status
= decode_deallocate(xdr
, res
);
501 decode_getfattr(xdr
, res
->falloc_fattr
, res
->falloc_server
);
507 * Decode SEEK request
509 static int nfs4_xdr_dec_seek(struct rpc_rqst
*rqstp
,
510 struct xdr_stream
*xdr
,
511 struct nfs42_seek_res
*res
)
513 struct compound_hdr hdr
;
516 status
= decode_compound_hdr(xdr
, &hdr
);
519 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
522 status
= decode_putfh(xdr
);
525 status
= decode_seek(xdr
, res
);
531 * Decode LAYOUTSTATS request
533 static int nfs4_xdr_dec_layoutstats(struct rpc_rqst
*rqstp
,
534 struct xdr_stream
*xdr
,
535 struct nfs42_layoutstat_res
*res
)
537 struct compound_hdr hdr
;
540 status
= decode_compound_hdr(xdr
, &hdr
);
543 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
546 status
= decode_putfh(xdr
);
549 WARN_ON(res
->num_dev
> PNFS_LAYOUTSTATS_MAXDEV
);
550 for (i
= 0; i
< res
->num_dev
; i
++) {
551 status
= decode_layoutstats(xdr
);
556 res
->rpc_status
= status
;
561 * Decode CLONE request
563 static int nfs4_xdr_dec_clone(struct rpc_rqst
*rqstp
,
564 struct xdr_stream
*xdr
,
565 struct nfs42_clone_res
*res
)
567 struct compound_hdr hdr
;
570 status
= decode_compound_hdr(xdr
, &hdr
);
573 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
576 status
= decode_putfh(xdr
);
579 status
= decode_savefh(xdr
);
582 status
= decode_putfh(xdr
);
585 status
= decode_clone(xdr
);
588 status
= decode_getfattr(xdr
, res
->dst_fattr
, res
->server
);
591 res
->rpc_status
= status
;
595 #endif /* __LINUX_FS_NFS_NFS4_2XDR_H */
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