aboutsummaryrefslogtreecommitdiffstats
path: root/include/uapi/rdma/ib_user_verbs.h
blob: 81aba3a73aa325a195da25bfb50a3a6d5782f0d7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
/*
 * Copyright (c) 2005 Topspin Communications.  All rights reserved.
 * Copyright (c) 2005, 2006 Cisco Systems.  All rights reserved.
 * Copyright (c) 2005 PathScale, Inc.  All rights reserved.
 * Copyright (c) 2006 Mellanox Technologies.  All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef IB_USER_VERBS_H
#define IB_USER_VERBS_H

#include <linux/types.h>

/*
 * Increment this value if any changes that break userspace ABI
 * compatibility are made.
 */
#define IB_USER_VERBS_ABI_VERSION	6

enum {
	IB_USER_VERBS_CMD_GET_CONTEXT,
	IB_USER_VERBS_CMD_QUERY_DEVICE,
	IB_USER_VERBS_CMD_QUERY_PORT,
	IB_USER_VERBS_CMD_ALLOC_PD,
	IB_USER_VERBS_CMD_DEALLOC_PD,
	IB_USER_VERBS_CMD_CREATE_AH,
	IB_USER_VERBS_CMD_MODIFY_AH,
	IB_USER_VERBS_CMD_QUERY_AH,
	IB_USER_VERBS_CMD_DESTROY_AH,
	IB_USER_VERBS_CMD_REG_MR,
	IB_USER_VERBS_CMD_REG_SMR,
	IB_USER_VERBS_CMD_REREG_MR,
	IB_USER_VERBS_CMD_QUERY_MR,
	IB_USER_VERBS_CMD_DEREG_MR,
	IB_USER_VERBS_CMD_ALLOC_MW,
	IB_USER_VERBS_CMD_BIND_MW,
	IB_USER_VERBS_CMD_DEALLOC_MW,
	IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL,
	IB_USER_VERBS_CMD_CREATE_CQ,
	IB_USER_VERBS_CMD_RESIZE_CQ,
	IB_USER_VERBS_CMD_DESTROY_CQ,
	IB_USER_VERBS_CMD_POLL_CQ,
	IB_USER_VERBS_CMD_PEEK_CQ,
	IB_USER_VERBS_CMD_REQ_NOTIFY_CQ,
	IB_USER_VERBS_CMD_CREATE_QP,
	IB_USER_VERBS_CMD_QUERY_QP,
	IB_USER_VERBS_CMD_MODIFY_QP,
	IB_USER_VERBS_CMD_DESTROY_QP,
	IB_USER_VERBS_CMD_POST_SEND,
	IB_USER_VERBS_CMD_POST_RECV,
	IB_USER_VERBS_CMD_ATTACH_MCAST,
	IB_USER_VERBS_CMD_DETACH_MCAST,
	IB_USER_VERBS_CMD_CREATE_SRQ,
	IB_USER_VERBS_CMD_MODIFY_SRQ,
	IB_USER_VERBS_CMD_QUERY_SRQ,
	IB_USER_VERBS_CMD_DESTROY_SRQ,
	IB_USER_VERBS_CMD_POST_SRQ_RECV,
	IB_USER_VERBS_CMD_OPEN_XRCD,
	IB_USER_VERBS_CMD_CLOSE_XRCD,
	IB_USER_VERBS_CMD_CREATE_XSRQ,
	IB_USER_VERBS_CMD_OPEN_QP
};

/*
 * Make sure that all structs defined in this file remain laid out so
 * that they pack the same way on 32-bit and 64-bit architectures (to
 * avoid incompatibility between 32-bit userspace and 64-bit kernels).
 * Specifically:
 *  - Do not use pointer types -- pass pointers in __u64 instead.
 *  - Make sure that any structure larger than 4 bytes is padded to a
 *    multiple of 8 bytes.  Otherwise the structure size will be
 *    different between 32-bit and 64-bit architectures.
 */

struct ib_uverbs_async_event_desc {
	__u64 element;
	__u32 event_type;	/* enum ib_event_type */
	__u32 reserved;
};

struct ib_uverbs_comp_event_desc {
	__u64 cq_handle;
};

/*
 * All commands from userspace should start with a __u32 command field
 * followed by __u16 in_words and out_words fields (which give the
 * length of the command block and response buffer if any in 32-bit
 * words).  The kernel driver will read these fields first and read
 * the rest of the command struct based on these value.
 */

struct ib_uverbs_cmd_hdr {
	__u32 command;
	__u16 in_words;
	__u16 out_words;
};

struct ib_uverbs_get_context {
	__u64 response;
	__u64 driver_data[0];
};

struct ib_uverbs_get_context_resp {
	__u32 async_fd;
	__u32 num_comp_vectors;
};

struct ib_uverbs_query_device {
	__u64 response;
	__u64 driver_data[0];
};

struct ib_uverbs_query_device_resp {
	__u64 fw_ver;
	__be64 node_guid;
	__be64 sys_image_guid;
	__u64 max_mr_size;
	__u64 page_size_cap;
	__u32 vendor_id;
	__u32 vendor_part_id;
	__u32 hw_ver;
	__u32 max_qp;
	__u32 max_qp_wr;
	__u32 device_cap_flags;
	__u32 max_sge;
	__u32 max_sge_rd;
	__u32 max_cq;
	__u32 max_cqe;
	__u32 max_mr;
	__u32 max_pd;
	__u32 max_qp_rd_atom;
	__u32 max_ee_rd_atom;
	__u32 max_res_rd_atom;
	__u32 max_qp_init_rd_atom;
	__u32 max_ee_init_rd_atom;
	__u32 atomic_cap;
	__u32 max_ee;
	__u32 max_rdd;
	__u32 max_mw;
	__u32 max_raw_ipv6_qp;
	__u32 max_raw_ethy_qp;
	__u32 max_mcast_grp;
	__u32 max_mcast_qp_attach;
	__u32 max_total_mcast_qp_attach;
	__u32 max_ah;
	__u32 max_fmr;
	__u32 max_map_per_fmr;
	__u32 max_srq;
	__u32 max_srq_wr;
	__u32 max_srq_sge;
	__u16 max_pkeys;
	__u8  local_ca_ack_delay;
	__u8  phys_port_cnt;
	__u8  reserved[4];
};

struct ib_uverbs_query_port {
	__u64 response;
	__u8  port_num;
	__u8  reserved[7];
	__u64 driver_data[0];
};

struct ib_uverbs_query_port_resp {
	__u32 port_cap_flags;
	__u32 max_msg_sz;
	__u32 bad_pkey_cntr;
	__u32 qkey_viol_cntr;
	__u32 gid_tbl_len;
	__u16 pkey_tbl_len;
	__u16 lid;
	__u16 sm_lid;
	__u8  state;
	__u8  max_mtu;
	__u8  active_mtu;
	__u8  lmc;
	__u8  max_vl_num;
	__u8  sm_sl;
	__u8  subnet_timeout;
	__u8  init_type_reply;
	__u8  active_width;
	__u8  active_speed;
	__u8  phys_state;
	__u8  link_layer;
	__u8  reserved[2];
};

struct ib_uverbs_alloc_pd {
	__u64 response;
	__u64 driver_data[0];
};

struct ib_uverbs_alloc_pd_resp {
	__u32 pd_handle;
};

struct ib_uverbs_dealloc_pd {
	__u32 pd_handle;
};

struct ib_uverbs_open_xrcd {
	__u64 response;
	__u32 fd;
	__u32 oflags;
	__u64 driver_data[0];
};

struct ib_uverbs_open_xrcd_resp {
	__u32 xrcd_handle;
};

struct ib_uverbs_close_xrcd {
	__u32 xrcd_handle;
};

struct ib_uverbs_reg_mr {
	__u64 response;
	__u64 start;
	__u64 length;
	__u64 hca_va;
	__u32 pd_handle;
	__u32 access_flags;
	__u64 driver_data[0];
};

struct ib_uverbs_reg_mr_resp {
	__u32 mr_handle;
	__u32 lkey;
	__u32 rkey;
};

struct ib_uverbs_dereg_mr {
	__u32 mr_handle;
};

struct ib_uverbs_create_comp_channel {
	__u64 response;
};

struct ib_uverbs_create_comp_channel_resp {
	__u32 fd;
};

struct ib_uverbs_create_cq {
	__u64 response;
	__u64 user_handle;
	__u32 cqe;
	__u32 comp_vector;
	__s32 comp_channel;
	__u32 reserved;
	__u64 driver_data[0];
};

struct ib_uverbs_create_cq_resp {
	__u32 cq_handle;
	__u32 cqe;
};

struct ib_uverbs_resize_cq {
	__u64 response;
	__u32 cq_handle;
	__u32 cqe;
	__u64 driver_data[0];
};

struct ib_uverbs_resize_cq_resp {
	__u32 cqe;
	__u32 reserved;
	__u64 driver_data[0];
};

struct ib_uverbs_poll_cq {
	__u64 response;
	__u32 cq_handle;
	__u32 ne;
};

struct ib_uverbs_wc {
	__u64 wr_id;
	__u32 status;
	__u32 opcode;
	__u32 vendor_err;
	__u32 byte_len;
	union {
		__u32 imm_data;
		__u32 invalidate_rkey;
	} ex;
	__u32 qp_num;
	__u32 src_qp;
	__u32 wc_flags;
	__u16 pkey_index;
	__u16 slid;
	__u8 sl;
	__u8 dlid_path_bits;
	__u8 port_num;
	__u8 reserved;
};

struct ib_uverbs_poll_cq_resp {
	__u32 count;
	__u32 reserved;
	struct ib_uverbs_wc wc[0];
};

struct ib_uverbs_req_notify_cq {
	__u32 cq_handle;
	__u32 solicited_only;
};

struct ib_uverbs_destroy_cq {
	__u64 response;
	__u32 cq_handle;
	__u32 reserved;
};

struct ib_uverbs_destroy_cq_resp {
	__u32 comp_events_reported;
	__u32 async_events_reported;
};

struct ib_uverbs_global_route {
	__u8  dgid[16];
	__u32 flow_label;
	__u8  sgid_index;
	__u8  hop_limit;
	__u8  traffic_class;
	__u8  reserved;
};

struct ib_uverbs_ah_attr {
	struct ib_uverbs_global_route grh;
	__u16 dlid;
	__u8  sl;
	__u8  src_path_bits;
	__u8  static_rate;
	__u8  is_global;
	__u8  port_num;
	__u8  reserved;
};

struct ib_uverbs_qp_attr {
	__u32	qp_attr_mask;
	__u32	qp_state;
	__u32	cur_qp_state;
	__u32	path_mtu;
	__u32	path_mig_state;
	__u32	qkey;
	__u32	rq_psn;
	__u32	sq_psn;
	__u32	dest_qp_num;
	__u32	qp_access_flags;

	struct ib_uverbs_ah_attr ah_attr;
	struct ib_uverbs_ah_attr alt_ah_attr;

	/* ib_qp_cap */
	__u32	max_send_wr;
	__u32	max_recv_wr;
	__u32	max_send_sge;
	__u32	max_recv_sge;
	__u32	max_inline_data;

	__u16	pkey_index;
	__u16	alt_pkey_index;
	__u8	en_sqd_async_notify;
	__u8	sq_draining;
	__u8	max_rd_atomic;
	__u8	max_dest_rd_atomic;
	__u8	min_rnr_timer;
	__u8	port_num;
	__u8	timeout;
	__u8	retry_cnt;
	__u8	rnr_retry;
	__u8	alt_port_num;
	__u8	alt_timeout;
	__u8	reserved[5];
};

struct ib_uverbs_create_qp {
	__u64 response;
	__u64 user_handle;
	__u32 pd_handle;
	__u32 send_cq_handle;
	__u32 recv_cq_handle;
	__u32 srq_handle;
	__u32 max_send_wr;
	__u32 max_recv_wr;
	__u32 max_send_sge;
	__u32 max_recv_sge;
	__u32 max_inline_data;
	__u8  sq_sig_all;
	__u8  qp_type;
	__u8  is_srq;
	__u8  reserved;
	__u64 driver_data[0];
};

struct ib_uverbs_open_qp {
	__u64 response;
	__u64 user_handle;
	__u32 pd_handle;
	__u32 qpn;
	__u8  qp_type;
	__u8  reserved[7];
	__u64 driver_data[0];
};

/* also used for open response */
struct ib_uverbs_create_qp_resp {
	__u32 qp_handle;
	__u32 qpn;
	__u32 max_send_wr;
	__u32 max_recv_wr;
	__u32 max_send_sge;
	__u32 max_recv_sge;
	__u32 max_inline_data;
	__u32 reserved;
};

/*
 * This struct needs to remain a multiple of 8 bytes to keep the
 * alignment of the modify QP parameters.
 */
struct ib_uverbs_qp_dest {
	__u8  dgid[16];
	__u32 flow_label;
	__u16 dlid;
	__u16 reserved;
	__u8  sgid_index;
	__u8  hop_limit;
	__u8  traffic_class;
	__u8  sl;
	__u8  src_path_bits;
	__u8  static_rate;
	__u8  is_global;
	__u8  port_num;
};

struct ib_uverbs_query_qp {
	__u64 response;
	__u32 qp_handle;
	__u32 attr_mask;
	__u64 driver_data[0];
};

struct ib_uverbs_query_qp_resp {
	struct ib_uverbs_qp_dest dest;
	struct ib_uverbs_qp_dest alt_dest;
	__u32 max_send_wr;
	__u32 max_recv_wr;
	__u32 max_send_sge;
	__u32 max_recv_sge;
	__u32 max_inline_data;
	__u32 qkey;
	__u32 rq_psn;
	__u32 sq_psn;
	__u32 dest_qp_num;
	__u32 qp_access_flags;
	__u16 pkey_index;
	__u16 alt_pkey_index;
	__u8  qp_state;
	__u8  cur_qp_state;
	__u8  path_mtu;
	__u8  path_mig_state;
	__u8  sq_draining;
	__u8  max_rd_atomic;
	__u8  max_dest_rd_atomic;
	__u8  min_rnr_timer;
	__u8  port_num;
	__u8  timeout;
	__u8  retry_cnt;
	__u8  rnr_retry;
	__u8  alt_port_num;
	__u8  alt_timeout;
	__u8  sq_sig_all;
	__u8  reserved[5];
	__u64 driver_data[0];
};

struct ib_uverbs_modify_qp {
	struct ib_uverbs_qp_dest dest;
	struct ib_uverbs_qp_dest alt_dest;
	__u32 qp_handle;
	__u32 attr_mask;
	__u32 qkey;
	__u32 rq_psn;
	__u32 sq_psn;
	__u32 dest_qp_num;
	__u32 qp_access_flags;
	__u16 pkey_index;
	__u16 alt_pkey_index;
	__u8  qp_state;
	__u8  cur_qp_state;
	__u8  path_mtu;
	__u8  path_mig_state;
	__u8  en_sqd_async_notify;
	__u8  max_rd_atomic;
	__u8  max_dest_rd_atomic;
	__u8  min_rnr_timer;
	__u8  port_num;
	__u8  timeout;
	__u8  retry_cnt;
	__u8  rnr_retry;
	__u8  alt_port_num;
	__u8  alt_timeout;
	__u8  reserved[2];
	__u64 driver_data[0];
};

struct ib_uverbs_modify_qp_resp {
};

struct ib_uverbs_destroy_qp {
	__u64 response;
	__u32 qp_handle;
	__u32 reserved;
};

struct ib_uverbs_destroy_qp_resp {
	__u32 events_reported;
};

/*
 * The ib_uverbs_sge structure isn't used anywhere, since we assume
 * the ib_sge structure is packed the same way on 32-bit and 64-bit
 * architectures in both kernel and user space.  It's just here to
 * document the ABI.
 */
struct ib_uverbs_sge {
	__u64 addr;
	__u32 length;
	__u32 lkey;
};

struct ib_uverbs_send_wr {
	__u64 wr_id;
	__u32 num_sge;
	__u32 opcode;
	__u32 send_flags;
	union {
		__u32 imm_data;
		__u32 invalidate_rkey;
	} ex;
	union {
		struct {
			__u64 remote_addr;
			__u32 rkey;
			__u32 reserved;
		} rdma;
		struct {
			__u64 remote_addr;
			__u64 compare_add;
			__u64 swap;
			__u32 rkey;
			__u32 reserved;
		} atomic;
		struct {
			__u32 ah;
			__u32 remote_qpn;
			__u32 remote_qkey;
			__u32 reserved;
		} ud;
	} wr;
};

struct ib_uverbs_post_send {
	__u64 response;
	__u32 qp_handle;
	__u32 wr_count;
	__u32 sge_count;
	__u32 wqe_size;
	struct ib_uverbs_send_wr send_wr[0];
};

struct ib_uverbs_post_send_resp {
	__u32 bad_wr;
};

struct ib_uverbs_recv_wr {
	__u64 wr_id;
	__u32 num_sge;
	__u32 reserved;
};

struct ib_uverbs_post_recv {
	__u64 response;
	__u32 qp_handle;
	__u32 wr_count;
	__u32 sge_count;
	__u32 wqe_size;
	struct ib_uverbs_recv_wr recv_wr[0];
};

struct ib_uverbs_post_recv_resp {
	__u32 bad_wr;
};

struct ib_uverbs_post_srq_recv {
	__u64 response;
	__u32 srq_handle;
	__u32 wr_count;
	__u32 sge_count;
	__u32 wqe_size;
	struct ib_uverbs_recv_wr recv[0];
};

struct ib_uverbs_post_srq_recv_resp {
	__u32 bad_wr;
};

struct ib_uverbs_create_ah {
	__u64 response;
	__u64 user_handle;
	__u32 pd_handle;
	__u32 reserved;
	struct ib_uverbs_ah_attr attr;
};

struct ib_uverbs_create_ah_resp {
	__u32 ah_handle;
};

struct ib_uverbs_destroy_ah {
	__u32 ah_handle;
};

struct ib_uverbs_attach_mcast {
	__u8  gid[16];
	__u32 qp_handle;
	__u16 mlid;
	__u16 reserved;
	__u64 driver_data[0];
};

struct ib_uverbs_detach_mcast {
	__u8  gid[16];
	__u32 qp_handle;
	__u16 mlid;
	__u16 reserved;
	__u64 driver_data[0];
};

struct ib_uverbs_create_srq {
	__u64 response;
	__u64 user_handle;
	__u32 pd_handle;
	__u32 max_wr;
	__u32 max_sge;
	__u32 srq_limit;
	__u64 driver_data[0];
};

struct ib_uverbs_create_xsrq {
	__u64 response;
	__u64 user_handle;
	__u32 srq_type;
	__u32 pd_handle;
	__u32 max_wr;
	__u32 max_sge;
	__u32 srq_limit;
	__u32 reserved;
	__u32 xrcd_handle;
	__u32 cq_handle;
	__u64 driver_data[0];
};

struct ib_uverbs_create_srq_resp {
	__u32 srq_handle;
	__u32 max_wr;
	__u32 max_sge;
	__u32 srqn;
};

struct ib_uverbs_modify_srq {
	__u32 srq_handle;
	__u32 attr_mask;
	__u32 max_wr;
	__u32 srq_limit;
	__u64 driver_data[0];
};

struct ib_uverbs_query_srq {
	__u64 response;
	__u32 srq_handle;
	__u32 reserved;
	__u64 driver_data[0];
};

struct ib_uverbs_query_srq_resp {
	__u32 max_wr;
	__u32 max_sge;
	__u32 srq_limit;
	__u32 reserved;
};

struct ib_uverbs_destroy_srq {
	__u64 response;
	__u32 srq_handle;
	__u32 reserved;
};

struct ib_uverbs_destroy_srq_resp {
	__u32 events_reported;
};

#endif /* IB_USER_VERBS_H */

Privacy Policy