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1/*
2 * Copyright (c) 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved.
4 * Copyright (c) 2005 PathScale, Inc. All rights reserved.
5 * Copyright (c) 2006 Mellanox Technologies. All rights reserved.
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 *
35 * $Id: ib_user_verbs.h 4019 2005-11-11 00:33:09Z sean.hefty $
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 */
47#define IB_USER_VERBS_ABI_VERSION 6
48
49enum {
50 IB_USER_VERBS_CMD_GET_CONTEXT,
51 IB_USER_VERBS_CMD_QUERY_DEVICE,
52 IB_USER_VERBS_CMD_QUERY_PORT,
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,
67 IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL,
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,
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
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).
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.
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
124struct ib_uverbs_get_context {
125 __u64 response;
126 __u64 driver_data[0];
127};
128
129struct ib_uverbs_get_context_resp {
130 __u32 async_fd;
131 __u32 num_comp_vectors;
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;
141 __be64 node_guid;
142 __be64 sys_image_guid;
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
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
246struct ib_uverbs_create_comp_channel {
247 __u64 response;
248};
249
250struct ib_uverbs_create_comp_channel_resp {
251 __u32 fd;
252};
253
254struct ib_uverbs_create_cq {
255 __u64 response;
256 __u64 user_handle;
257 __u32 cqe;
258 __u32 comp_vector;
259 __s32 comp_channel;
260 __u32 reserved;
261 __u64 driver_data[0];
262};
263
264struct ib_uverbs_create_cq_resp {
265 __u32 cq_handle;
266 __u32 cqe;
267};
268
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;
278};
279
280struct ib_uverbs_poll_cq {
281 __u64 response;
282 __u32 cq_handle;
283 __u32 ne;
284};
285
286struct ib_uverbs_wc {
287 __u64 wr_id;
288 __u32 status;
289 __u32 opcode;
290 __u32 vendor_err;
291 __u32 byte_len;
292 __u32 imm_data;
293 __u32 qp_num;
294 __u32 src_qp;
295 __u32 wc_flags;
296 __u16 pkey_index;
297 __u16 slid;
298 __u8 sl;
299 __u8 dlid_path_bits;
300 __u8 port_num;
301 __u8 reserved;
302};
303
304struct ib_uverbs_poll_cq_resp {
305 __u32 count;
306 __u32 reserved;
307 struct ib_uverbs_wc wc[0];
308};
309
310struct ib_uverbs_req_notify_cq {
311 __u32 cq_handle;
312 __u32 solicited_only;
313};
314
315struct ib_uverbs_destroy_cq {
316 __u64 response;
317 __u32 cq_handle;
318 __u32 reserved;
319};
320
321struct ib_uverbs_destroy_cq_resp {
322 __u32 comp_events_reported;
323 __u32 async_events_reported;
324};
325
326struct ib_uverbs_global_route {
327 __u8 dgid[16];
328 __u32 flow_label;
329 __u8 sgid_index;
330 __u8 hop_limit;
331 __u8 traffic_class;
332 __u8 reserved;
333};
334
335struct ib_uverbs_ah_attr {
336 struct ib_uverbs_global_route grh;
337 __u16 dlid;
338 __u8 sl;
339 __u8 src_path_bits;
340 __u8 static_rate;
341 __u8 is_global;
342 __u8 port_num;
343 __u8 reserved;
344};
345
346struct ib_uverbs_qp_attr {
347 __u32 qp_attr_mask;
348 __u32 qp_state;
349 __u32 cur_qp_state;
350 __u32 path_mtu;
351 __u32 path_mig_state;
352 __u32 qkey;
353 __u32 rq_psn;
354 __u32 sq_psn;
355 __u32 dest_qp_num;
356 __u32 qp_access_flags;
357
358 struct ib_uverbs_ah_attr ah_attr;
359 struct ib_uverbs_ah_attr alt_ah_attr;
360
361 /* ib_qp_cap */
362 __u32 max_send_wr;
363 __u32 max_recv_wr;
364 __u32 max_send_sge;
365 __u32 max_recv_sge;
366 __u32 max_inline_data;
367
368 __u16 pkey_index;
369 __u16 alt_pkey_index;
370 __u8 en_sqd_async_notify;
371 __u8 sq_draining;
372 __u8 max_rd_atomic;
373 __u8 max_dest_rd_atomic;
374 __u8 min_rnr_timer;
375 __u8 port_num;
376 __u8 timeout;
377 __u8 retry_cnt;
378 __u8 rnr_retry;
379 __u8 alt_port_num;
380 __u8 alt_timeout;
381 __u8 reserved[5];
382};
383
384struct ib_uverbs_create_qp {
385 __u64 response;
386 __u64 user_handle;
387 __u32 pd_handle;
388 __u32 send_cq_handle;
389 __u32 recv_cq_handle;
390 __u32 srq_handle;
391 __u32 max_send_wr;
392 __u32 max_recv_wr;
393 __u32 max_send_sge;
394 __u32 max_recv_sge;
395 __u32 max_inline_data;
396 __u8 sq_sig_all;
397 __u8 qp_type;
398 __u8 is_srq;
399 __u8 reserved;
400 __u64 driver_data[0];
401};
402
403struct ib_uverbs_create_qp_resp {
404 __u32 qp_handle;
405 __u32 qpn;
406 __u32 max_send_wr;
407 __u32 max_recv_wr;
408 __u32 max_send_sge;
409 __u32 max_recv_sge;
410 __u32 max_inline_data;
411 __u32 reserved;
412};
413
414/*
415 * This struct needs to remain a multiple of 8 bytes to keep the
416 * alignment of the modify QP parameters.
417 */
418struct ib_uverbs_qp_dest {
419 __u8 dgid[16];
420 __u32 flow_label;
421 __u16 dlid;
422 __u16 reserved;
423 __u8 sgid_index;
424 __u8 hop_limit;
425 __u8 traffic_class;
426 __u8 sl;
427 __u8 src_path_bits;
428 __u8 static_rate;
429 __u8 is_global;
430 __u8 port_num;
431};
432
433struct ib_uverbs_query_qp {
434 __u64 response;
435 __u32 qp_handle;
436 __u32 attr_mask;
437 __u64 driver_data[0];
438};
439
440struct ib_uverbs_query_qp_resp {
441 struct ib_uverbs_qp_dest dest;
442 struct ib_uverbs_qp_dest alt_dest;
443 __u32 max_send_wr;
444 __u32 max_recv_wr;
445 __u32 max_send_sge;
446 __u32 max_recv_sge;
447 __u32 max_inline_data;
448 __u32 qkey;
449 __u32 rq_psn;
450 __u32 sq_psn;
451 __u32 dest_qp_num;
452 __u32 qp_access_flags;
453 __u16 pkey_index;
454 __u16 alt_pkey_index;
455 __u8 qp_state;
456 __u8 cur_qp_state;
457 __u8 path_mtu;
458 __u8 path_mig_state;
459 __u8 en_sqd_async_notify;
460 __u8 max_rd_atomic;
461 __u8 max_dest_rd_atomic;
462 __u8 min_rnr_timer;
463 __u8 port_num;
464 __u8 timeout;
465 __u8 retry_cnt;
466 __u8 rnr_retry;
467 __u8 alt_port_num;
468 __u8 alt_timeout;
469 __u8 sq_sig_all;
470 __u8 reserved[5];
471 __u64 driver_data[0];
472};
473
474struct ib_uverbs_modify_qp {
475 struct ib_uverbs_qp_dest dest;
476 struct ib_uverbs_qp_dest alt_dest;
477 __u32 qp_handle;
478 __u32 attr_mask;
479 __u32 qkey;
480 __u32 rq_psn;
481 __u32 sq_psn;
482 __u32 dest_qp_num;
483 __u32 qp_access_flags;
484 __u16 pkey_index;
485 __u16 alt_pkey_index;
486 __u8 qp_state;
487 __u8 cur_qp_state;
488 __u8 path_mtu;
489 __u8 path_mig_state;
490 __u8 en_sqd_async_notify;
491 __u8 max_rd_atomic;
492 __u8 max_dest_rd_atomic;
493 __u8 min_rnr_timer;
494 __u8 port_num;
495 __u8 timeout;
496 __u8 retry_cnt;
497 __u8 rnr_retry;
498 __u8 alt_port_num;
499 __u8 alt_timeout;
500 __u8 reserved[2];
501 __u64 driver_data[0];
502};
503
504struct ib_uverbs_modify_qp_resp {
505};
506
507struct ib_uverbs_destroy_qp {
508 __u64 response;
509 __u32 qp_handle;
510 __u32 reserved;
511};
512
513struct ib_uverbs_destroy_qp_resp {
514 __u32 events_reported;
515};
516
517/*
518 * The ib_uverbs_sge structure isn't used anywhere, since we assume
519 * the ib_sge structure is packed the same way on 32-bit and 64-bit
520 * architectures in both kernel and user space. It's just here to
521 * document the ABI.
522 */
523struct ib_uverbs_sge {
524 __u64 addr;
525 __u32 length;
526 __u32 lkey;
527};
528
529struct ib_uverbs_send_wr {
530 __u64 wr_id;
531 __u32 num_sge;
532 __u32 opcode;
533 __u32 send_flags;
534 __u32 imm_data;
535 union {
536 struct {
537 __u64 remote_addr;
538 __u32 rkey;
539 __u32 reserved;
540 } rdma;
541 struct {
542 __u64 remote_addr;
543 __u64 compare_add;
544 __u64 swap;
545 __u32 rkey;
546 __u32 reserved;
547 } atomic;
548 struct {
549 __u32 ah;
550 __u32 remote_qpn;
551 __u32 remote_qkey;
552 __u32 reserved;
553 } ud;
554 } wr;
555};
556
557struct ib_uverbs_post_send {
558 __u64 response;
559 __u32 qp_handle;
560 __u32 wr_count;
561 __u32 sge_count;
562 __u32 wqe_size;
563 struct ib_uverbs_send_wr send_wr[0];
564};
565
566struct ib_uverbs_post_send_resp {
567 __u32 bad_wr;
568};
569
570struct ib_uverbs_recv_wr {
571 __u64 wr_id;
572 __u32 num_sge;
573 __u32 reserved;
574};
575
576struct ib_uverbs_post_recv {
577 __u64 response;
578 __u32 qp_handle;
579 __u32 wr_count;
580 __u32 sge_count;
581 __u32 wqe_size;
582 struct ib_uverbs_recv_wr recv_wr[0];
583};
584
585struct ib_uverbs_post_recv_resp {
586 __u32 bad_wr;
587};
588
589struct ib_uverbs_post_srq_recv {
590 __u64 response;
591 __u32 srq_handle;
592 __u32 wr_count;
593 __u32 sge_count;
594 __u32 wqe_size;
595 struct ib_uverbs_recv_wr recv[0];
596};
597
598struct ib_uverbs_post_srq_recv_resp {
599 __u32 bad_wr;
600};
601
602struct ib_uverbs_create_ah {
603 __u64 response;
604 __u64 user_handle;
605 __u32 pd_handle;
606 __u32 reserved;
607 struct ib_uverbs_ah_attr attr;
608};
609
610struct ib_uverbs_create_ah_resp {
611 __u32 ah_handle;
612};
613
614struct ib_uverbs_destroy_ah {
615 __u32 ah_handle;
616};
617
618struct ib_uverbs_attach_mcast {
619 __u8 gid[16];
620 __u32 qp_handle;
621 __u16 mlid;
622 __u16 reserved;
623 __u64 driver_data[0];
624};
625
626struct ib_uverbs_detach_mcast {
627 __u8 gid[16];
628 __u32 qp_handle;
629 __u16 mlid;
630 __u16 reserved;
631 __u64 driver_data[0];
632};
633
634struct ib_uverbs_create_srq {
635 __u64 response;
636 __u64 user_handle;
637 __u32 pd_handle;
638 __u32 max_wr;
639 __u32 max_sge;
640 __u32 srq_limit;
641 __u64 driver_data[0];
642};
643
644struct ib_uverbs_create_srq_resp {
645 __u32 srq_handle;
646 __u32 max_wr;
647 __u32 max_sge;
648 __u32 reserved;
649};
650
651struct ib_uverbs_modify_srq {
652 __u32 srq_handle;
653 __u32 attr_mask;
654 __u32 max_wr;
655 __u32 srq_limit;
656 __u64 driver_data[0];
657};
658
659struct ib_uverbs_query_srq {
660 __u64 response;
661 __u32 srq_handle;
662 __u32 reserved;
663 __u64 driver_data[0];
664};
665
666struct ib_uverbs_query_srq_resp {
667 __u32 max_wr;
668 __u32 max_sge;
669 __u32 srq_limit;
670 __u32 reserved;
671};
672
673struct ib_uverbs_destroy_srq {
674 __u64 response;
675 __u32 srq_handle;
676 __u32 reserved;
677};
678
679struct ib_uverbs_destroy_srq_resp {
680 __u32 events_reported;
681};
682
683#endif /* IB_USER_VERBS_H */