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Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart
[linux.git] / include / rdma / ib_user_verbs.h
CommitLineData
8a96b3f9
RD		 1/*
2 * Copyright (c) 2005 Topspin Communications. All rights reserved.
33b9b3ee 3 * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved.
91ecd4ae 4 * Copyright (c) 2005 PathScale, Inc. All rights reserved.
8bdb0e86 5 * Copyright (c) 2006 Mellanox Technologies. All rights reserved.
8a96b3f9
RD		 6 *
7 * This software is available to you under a choice of one of two
8 * licenses. You may choose to be licensed under the terms of the GNU
9 * General Public License (GPL) Version 2, available from the file
10 * COPYING in the main directory of this source tree, or the
11 * OpenIB.org BSD license below:
12 *
13 * Redistribution and use in source and binary forms, with or
14 * without modification, are permitted provided that the following
15 * conditions are met:
16 *
17 * - Redistributions of source code must retain the above
18 * copyright notice, this list of conditions and the following
19 * disclaimer.
20 *
21 * - Redistributions in binary form must reproduce the above
22 * copyright notice, this list of conditions and the following
23 * disclaimer in the documentation and/or other materials
24 * provided with the distribution.
25 *
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 * SOFTWARE.
34 *
6a9af2e1 35 * $Id: ib_user_verbs.h 4019 2005-11-11 00:33:09Z sean.hefty $
8a96b3f9
RD		 36 */
37
38#ifndef IB_USER_VERBS_H
39#define IB_USER_VERBS_H
40
41#include <linux/types.h>
42
43/*
44 * Increment this value if any changes that break userspace ABI
45 * compatibility are made.
46 */
ea88fd16 47#define IB_USER_VERBS_ABI_VERSION 6
8a96b3f9
RD		 48
49enum {
8a96b3f9
RD		 50 IB_USER_VERBS_CMD_GET_CONTEXT,
51 IB_USER_VERBS_CMD_QUERY_DEVICE,
52 IB_USER_VERBS_CMD_QUERY_PORT,
8a96b3f9
RD		 53 IB_USER_VERBS_CMD_ALLOC_PD,
54 IB_USER_VERBS_CMD_DEALLOC_PD,
55 IB_USER_VERBS_CMD_CREATE_AH,
56 IB_USER_VERBS_CMD_MODIFY_AH,
57 IB_USER_VERBS_CMD_QUERY_AH,
58 IB_USER_VERBS_CMD_DESTROY_AH,
59 IB_USER_VERBS_CMD_REG_MR,
60 IB_USER_VERBS_CMD_REG_SMR,
61 IB_USER_VERBS_CMD_REREG_MR,
62 IB_USER_VERBS_CMD_QUERY_MR,
63 IB_USER_VERBS_CMD_DEREG_MR,
64 IB_USER_VERBS_CMD_ALLOC_MW,
65 IB_USER_VERBS_CMD_BIND_MW,
66 IB_USER_VERBS_CMD_DEALLOC_MW,
6b73597e 67 IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL,
8a96b3f9
RD		 68 IB_USER_VERBS_CMD_CREATE_CQ,
69 IB_USER_VERBS_CMD_RESIZE_CQ,
70 IB_USER_VERBS_CMD_DESTROY_CQ,
71 IB_USER_VERBS_CMD_POLL_CQ,
72 IB_USER_VERBS_CMD_PEEK_CQ,
73 IB_USER_VERBS_CMD_REQ_NOTIFY_CQ,
74 IB_USER_VERBS_CMD_CREATE_QP,
75 IB_USER_VERBS_CMD_QUERY_QP,
76 IB_USER_VERBS_CMD_MODIFY_QP,
77 IB_USER_VERBS_CMD_DESTROY_QP,
78 IB_USER_VERBS_CMD_POST_SEND,
79 IB_USER_VERBS_CMD_POST_RECV,
80 IB_USER_VERBS_CMD_ATTACH_MCAST,
f520ba5a
RD		 81 IB_USER_VERBS_CMD_DETACH_MCAST,
82 IB_USER_VERBS_CMD_CREATE_SRQ,
83 IB_USER_VERBS_CMD_MODIFY_SRQ,
84 IB_USER_VERBS_CMD_QUERY_SRQ,
85 IB_USER_VERBS_CMD_DESTROY_SRQ,
86 IB_USER_VERBS_CMD_POST_SRQ_RECV
8a96b3f9
RD		 87};
88
89/*
90 * Make sure that all structs defined in this file remain laid out so
91 * that they pack the same way on 32-bit and 64-bit architectures (to
92 * avoid incompatibility between 32-bit userspace and 64-bit kernels).
91ecd4ae
RD		 93 * Specifically:
94 * - Do not use pointer types -- pass pointers in __u64 instead.
95 * - Make sure that any structure larger than 4 bytes is padded to a
96 * multiple of 8 bytes. Otherwise the structure size will be
97 * different between 32-bit and 64-bit architectures.
8a96b3f9
RD		 98 */
99
100struct ib_uverbs_async_event_desc {
101 __u64 element;
102 __u32 event_type; /* enum ib_event_type */
103 __u32 reserved;
104};
105
106struct ib_uverbs_comp_event_desc {
107 __u64 cq_handle;
108};
109
110/*
111 * All commands from userspace should start with a __u32 command field
112 * followed by __u16 in_words and out_words fields (which give the
113 * length of the command block and response buffer if any in 32-bit
114 * words). The kernel driver will read these fields first and read
115 * the rest of the command struct based on these value.
116 */
117
118struct ib_uverbs_cmd_hdr {
119 __u32 command;
120 __u16 in_words;
121 __u16 out_words;
122};
123
8a96b3f9
RD		 124struct ib_uverbs_get_context {
125 __u64 response;
8a96b3f9
RD		 126 __u64 driver_data[0];
127};
128
129struct ib_uverbs_get_context_resp {
130 __u32 async_fd;
6b73597e 131 __u32 num_comp_vectors;
8a96b3f9
RD		 132};
133
134struct ib_uverbs_query_device {
135 __u64 response;
136 __u64 driver_data[0];
137};
138
139struct ib_uverbs_query_device_resp {
140 __u64 fw_ver;
97f52eb4
SH		 141 __be64 node_guid;
142 __be64 sys_image_guid;
8a96b3f9
RD		 143 __u64 max_mr_size;
144 __u64 page_size_cap;
145 __u32 vendor_id;
146 __u32 vendor_part_id;
147 __u32 hw_ver;
148 __u32 max_qp;
149 __u32 max_qp_wr;
150 __u32 device_cap_flags;
151 __u32 max_sge;
152 __u32 max_sge_rd;
153 __u32 max_cq;
154 __u32 max_cqe;
155 __u32 max_mr;
156 __u32 max_pd;
157 __u32 max_qp_rd_atom;
158 __u32 max_ee_rd_atom;
159 __u32 max_res_rd_atom;
160 __u32 max_qp_init_rd_atom;
161 __u32 max_ee_init_rd_atom;
162 __u32 atomic_cap;
163 __u32 max_ee;
164 __u32 max_rdd;
165 __u32 max_mw;
166 __u32 max_raw_ipv6_qp;
167 __u32 max_raw_ethy_qp;
168 __u32 max_mcast_grp;
169 __u32 max_mcast_qp_attach;
170 __u32 max_total_mcast_qp_attach;
171 __u32 max_ah;
172 __u32 max_fmr;
173 __u32 max_map_per_fmr;
174 __u32 max_srq;
175 __u32 max_srq_wr;
176 __u32 max_srq_sge;
177 __u16 max_pkeys;
178 __u8 local_ca_ack_delay;
179 __u8 phys_port_cnt;
180 __u8 reserved[4];
181};
182
183struct ib_uverbs_query_port {
184 __u64 response;
185 __u8 port_num;
186 __u8 reserved[7];
187 __u64 driver_data[0];
188};
189
190struct ib_uverbs_query_port_resp {
191 __u32 port_cap_flags;
192 __u32 max_msg_sz;
193 __u32 bad_pkey_cntr;
194 __u32 qkey_viol_cntr;
195 __u32 gid_tbl_len;
196 __u16 pkey_tbl_len;
197 __u16 lid;
198 __u16 sm_lid;
199 __u8 state;
200 __u8 max_mtu;
201 __u8 active_mtu;
202 __u8 lmc;
203 __u8 max_vl_num;
204 __u8 sm_sl;
205 __u8 subnet_timeout;
206 __u8 init_type_reply;
207 __u8 active_width;
208 __u8 active_speed;
209 __u8 phys_state;
210 __u8 reserved[3];
211};
212
8a96b3f9
RD		 213struct ib_uverbs_alloc_pd {
214 __u64 response;
215 __u64 driver_data[0];
216};
217
218struct ib_uverbs_alloc_pd_resp {
219 __u32 pd_handle;
220};
221
222struct ib_uverbs_dealloc_pd {
223 __u32 pd_handle;
224};
225
226struct ib_uverbs_reg_mr {
227 __u64 response;
228 __u64 start;
229 __u64 length;
230 __u64 hca_va;
231 __u32 pd_handle;
232 __u32 access_flags;
233 __u64 driver_data[0];
234};
235
236struct ib_uverbs_reg_mr_resp {
237 __u32 mr_handle;
238 __u32 lkey;
239 __u32 rkey;
240};
241
242struct ib_uverbs_dereg_mr {
243 __u32 mr_handle;
244};
245
6b73597e
RD		 246struct ib_uverbs_create_comp_channel {
247 __u64 response;
248};
249
250struct ib_uverbs_create_comp_channel_resp {
251 __u32 fd;
252};
253
8a96b3f9
RD		 254struct ib_uverbs_create_cq {
255 __u64 response;
256 __u64 user_handle;
257 __u32 cqe;
6b73597e
RD		 258 __u32 comp_vector;
259 __s32 comp_channel;
260 __u32 reserved;
8a96b3f9
RD		 261 __u64 driver_data[0];
262};
263
264struct ib_uverbs_create_cq_resp {
265 __u32 cq_handle;
266 __u32 cqe;
267};
268
33b9b3ee
RD		 269struct ib_uverbs_resize_cq {
270 __u64 response;
271 __u32 cq_handle;
272 __u32 cqe;
273 __u64 driver_data[0];
274};
275
276struct ib_uverbs_resize_cq_resp {
277 __u32 cqe;
64f817ba
RC		 278 __u32 reserved;
279 __u64 driver_data[0];
33b9b3ee
RD		 280};
281
91ecd4ae
RD		 282struct ib_uverbs_poll_cq {
283 __u64 response;
284 __u32 cq_handle;
285 __u32 ne;
286};
287
288struct ib_uverbs_wc {
289 __u64 wr_id;
290 __u32 status;
291 __u32 opcode;
292 __u32 vendor_err;
293 __u32 byte_len;
294 __u32 imm_data;
295 __u32 qp_num;
296 __u32 src_qp;
297 __u32 wc_flags;
298 __u16 pkey_index;
299 __u16 slid;
300 __u8 sl;
301 __u8 dlid_path_bits;
302 __u8 port_num;
303 __u8 reserved;
304};
305
306struct ib_uverbs_poll_cq_resp {
307 __u32 count;
308 __u32 reserved;
309 struct ib_uverbs_wc wc[0];
310};
311
312struct ib_uverbs_req_notify_cq {
313 __u32 cq_handle;
314 __u32 solicited_only;
315};
316
8a96b3f9 317struct ib_uverbs_destroy_cq {
63aaf647 318 __u64 response;
8a96b3f9 319 __u32 cq_handle;
63aaf647
RD		 320 __u32 reserved;
321};
322
323struct ib_uverbs_destroy_cq_resp {
324 __u32 comp_events_reported;
325 __u32 async_events_reported;
8a96b3f9
RD		 326};
327
6a9af2e1
SH		 328struct ib_uverbs_global_route {
329 __u8 dgid[16];
330 __u32 flow_label;
331 __u8 sgid_index;
332 __u8 hop_limit;
333 __u8 traffic_class;
334 __u8 reserved;
335};
336
337struct ib_uverbs_ah_attr {
338 struct ib_uverbs_global_route grh;
339 __u16 dlid;
340 __u8 sl;
341 __u8 src_path_bits;
342 __u8 static_rate;
343 __u8 is_global;
344 __u8 port_num;
345 __u8 reserved;
346};
347
348struct ib_uverbs_qp_attr {
349 __u32 qp_attr_mask;
350 __u32 qp_state;
351 __u32 cur_qp_state;
352 __u32 path_mtu;
353 __u32 path_mig_state;
354 __u32 qkey;
355 __u32 rq_psn;
356 __u32 sq_psn;
357 __u32 dest_qp_num;
358 __u32 qp_access_flags;
359
360 struct ib_uverbs_ah_attr ah_attr;
361 struct ib_uverbs_ah_attr alt_ah_attr;
362
363 /* ib_qp_cap */
364 __u32 max_send_wr;
365 __u32 max_recv_wr;
366 __u32 max_send_sge;
367 __u32 max_recv_sge;
368 __u32 max_inline_data;
369
370 __u16 pkey_index;
371 __u16 alt_pkey_index;
372 __u8 en_sqd_async_notify;
373 __u8 sq_draining;
374 __u8 max_rd_atomic;
375 __u8 max_dest_rd_atomic;
376 __u8 min_rnr_timer;
377 __u8 port_num;
378 __u8 timeout;
379 __u8 retry_cnt;
380 __u8 rnr_retry;
381 __u8 alt_port_num;
382 __u8 alt_timeout;
383 __u8 reserved[5];
384};
385
8a96b3f9
RD		 386struct ib_uverbs_create_qp {
387 __u64 response;
388 __u64 user_handle;
389 __u32 pd_handle;
390 __u32 send_cq_handle;
391 __u32 recv_cq_handle;
392 __u32 srq_handle;
393 __u32 max_send_wr;
394 __u32 max_recv_wr;
395 __u32 max_send_sge;
396 __u32 max_recv_sge;
397 __u32 max_inline_data;
398 __u8 sq_sig_all;
399 __u8 qp_type;
400 __u8 is_srq;
401 __u8 reserved;
402 __u64 driver_data[0];
403};
404
405struct ib_uverbs_create_qp_resp {
406 __u32 qp_handle;
407 __u32 qpn;
77369ed3
JM		 408 __u32 max_send_wr;
409 __u32 max_recv_wr;
410 __u32 max_send_sge;
411 __u32 max_recv_sge;
412 __u32 max_inline_data;
4d9781c5 413 __u32 reserved;
8a96b3f9
RD		 414};
415
416/*
417 * This struct needs to remain a multiple of 8 bytes to keep the
418 * alignment of the modify QP parameters.
419 */
420struct ib_uverbs_qp_dest {
421 __u8 dgid[16];
422 __u32 flow_label;
423 __u16 dlid;
424 __u16 reserved;
425 __u8 sgid_index;
426 __u8 hop_limit;
427 __u8 traffic_class;
428 __u8 sl;
429 __u8 src_path_bits;
430 __u8 static_rate;
431 __u8 is_global;
432 __u8 port_num;
433};
434
7ccc9a24
DB		 435struct ib_uverbs_query_qp {
436 __u64 response;
437 __u32 qp_handle;
438 __u32 attr_mask;
439 __u64 driver_data[0];
440};
441
442struct ib_uverbs_query_qp_resp {
443 struct ib_uverbs_qp_dest dest;
444 struct ib_uverbs_qp_dest alt_dest;
445 __u32 max_send_wr;
446 __u32 max_recv_wr;
447 __u32 max_send_sge;
448 __u32 max_recv_sge;
449 __u32 max_inline_data;
450 __u32 qkey;
451 __u32 rq_psn;
452 __u32 sq_psn;
453 __u32 dest_qp_num;
454 __u32 qp_access_flags;
455 __u16 pkey_index;
456 __u16 alt_pkey_index;
457 __u8 qp_state;
458 __u8 cur_qp_state;
459 __u8 path_mtu;
460 __u8 path_mig_state;
0b26c88f 461 __u8 sq_draining;
7ccc9a24
DB		 462 __u8 max_rd_atomic;
463 __u8 max_dest_rd_atomic;
464 __u8 min_rnr_timer;
465 __u8 port_num;
466 __u8 timeout;
467 __u8 retry_cnt;
468 __u8 rnr_retry;
469 __u8 alt_port_num;
470 __u8 alt_timeout;
471 __u8 sq_sig_all;
472 __u8 reserved[5];
473 __u64 driver_data[0];
474};
475
8a96b3f9
RD		 476struct ib_uverbs_modify_qp {
477 struct ib_uverbs_qp_dest dest;
478 struct ib_uverbs_qp_dest alt_dest;
479 __u32 qp_handle;
480 __u32 attr_mask;
481 __u32 qkey;
482 __u32 rq_psn;
483 __u32 sq_psn;
484 __u32 dest_qp_num;
485 __u32 qp_access_flags;
486 __u16 pkey_index;
487 __u16 alt_pkey_index;
488 __u8 qp_state;
489 __u8 cur_qp_state;
490 __u8 path_mtu;
491 __u8 path_mig_state;
492 __u8 en_sqd_async_notify;
493 __u8 max_rd_atomic;
494 __u8 max_dest_rd_atomic;
495 __u8 min_rnr_timer;
496 __u8 port_num;
497 __u8 timeout;
498 __u8 retry_cnt;
499 __u8 rnr_retry;
500 __u8 alt_port_num;
501 __u8 alt_timeout;
502 __u8 reserved[2];
503 __u64 driver_data[0];
504};
505
506struct ib_uverbs_modify_qp_resp {
507};
508
509struct ib_uverbs_destroy_qp {
63aaf647 510 __u64 response;
8a96b3f9 511 __u32 qp_handle;
63aaf647
RD		 512 __u32 reserved;
513};
514
515struct ib_uverbs_destroy_qp_resp {
516 __u32 events_reported;
8a96b3f9
RD		 517};
518
91ecd4ae
RD		 519/*
520 * The ib_uverbs_sge structure isn't used anywhere, since we assume
521 * the ib_sge structure is packed the same way on 32-bit and 64-bit
522 * architectures in both kernel and user space. It's just here to
523 * document the ABI.
524 */
525struct ib_uverbs_sge {
526 __u64 addr;
527 __u32 length;
528 __u32 lkey;
529};
530
531struct ib_uverbs_send_wr {
a74cd4af 532 __u64 wr_id;
91ecd4ae
RD		 533 __u32 num_sge;
534 __u32 opcode;
535 __u32 send_flags;
536 __u32 imm_data;
537 union {
538 struct {
539 __u64 remote_addr;
540 __u32 rkey;
541 __u32 reserved;
542 } rdma;
543 struct {
544 __u64 remote_addr;
545 __u64 compare_add;
546 __u64 swap;
547 __u32 rkey;
548 __u32 reserved;
549 } atomic;
550 struct {
551 __u32 ah;
552 __u32 remote_qpn;
553 __u32 remote_qkey;
554 __u32 reserved;
555 } ud;
556 } wr;
557};
558
559struct ib_uverbs_post_send {
560 __u64 response;
561 __u32 qp_handle;
562 __u32 wr_count;
563 __u32 sge_count;
564 __u32 wqe_size;
565 struct ib_uverbs_send_wr send_wr[0];
566};
567
568struct ib_uverbs_post_send_resp {
569 __u32 bad_wr;
570};
571
572struct ib_uverbs_recv_wr {
573 __u64 wr_id;
574 __u32 num_sge;
575 __u32 reserved;
576};
577
578struct ib_uverbs_post_recv {
579 __u64 response;
580 __u32 qp_handle;
581 __u32 wr_count;
582 __u32 sge_count;
583 __u32 wqe_size;
584 struct ib_uverbs_recv_wr recv_wr[0];
585};
586
587struct ib_uverbs_post_recv_resp {
588 __u32 bad_wr;
589};
590
591struct ib_uverbs_post_srq_recv {
592 __u64 response;
593 __u32 srq_handle;
594 __u32 wr_count;
595 __u32 sge_count;
596 __u32 wqe_size;
597 struct ib_uverbs_recv_wr recv[0];
598};
599
600struct ib_uverbs_post_srq_recv_resp {
601 __u32 bad_wr;
602};
603
91ecd4ae
RD		 604struct ib_uverbs_create_ah {
605 __u64 response;
606 __u64 user_handle;
607 __u32 pd_handle;
608 __u32 reserved;
609 struct ib_uverbs_ah_attr attr;
610};
611
612struct ib_uverbs_create_ah_resp {
613 __u32 ah_handle;
614};
615
616struct ib_uverbs_destroy_ah {
617 __u32 ah_handle;
618};
619
8a96b3f9
RD		 620struct ib_uverbs_attach_mcast {
621 __u8 gid[16];
622 __u32 qp_handle;
623 __u16 mlid;
624 __u16 reserved;
625 __u64 driver_data[0];
626};
627
628struct ib_uverbs_detach_mcast {
629 __u8 gid[16];
630 __u32 qp_handle;
631 __u16 mlid;
632 __u16 reserved;
633 __u64 driver_data[0];
634};
635
f520ba5a
RD		 636struct ib_uverbs_create_srq {
637 __u64 response;
638 __u64 user_handle;
639 __u32 pd_handle;
640 __u32 max_wr;
641 __u32 max_sge;
642 __u32 srq_limit;
643 __u64 driver_data[0];
644};
645
646struct ib_uverbs_create_srq_resp {
647 __u32 srq_handle;
ea88fd16
DB		 648 __u32 max_wr;
649 __u32 max_sge;
650 __u32 reserved;
f520ba5a
RD		 651};
652
653struct ib_uverbs_modify_srq {
654 __u32 srq_handle;
655 __u32 attr_mask;
656 __u32 max_wr;
f520ba5a 657 __u32 srq_limit;
f520ba5a
RD		 658 __u64 driver_data[0];
659};
660
8bdb0e86
DB		 661struct ib_uverbs_query_srq {
662 __u64 response;
663 __u32 srq_handle;
664 __u32 reserved;
665 __u64 driver_data[0];
666};
667
668struct ib_uverbs_query_srq_resp {
669 __u32 max_wr;
670 __u32 max_sge;
671 __u32 srq_limit;
672 __u32 reserved;
673};
674
f520ba5a 675struct ib_uverbs_destroy_srq {
63aaf647 676 __u64 response;
f520ba5a 677 __u32 srq_handle;
63aaf647
RD		 678 __u32 reserved;
679};
680
681struct ib_uverbs_destroy_srq_resp {
682 __u32 events_reported;
f520ba5a
RD		 683};
684
8a96b3f9 685#endif /* IB_USER_VERBS_H */
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