1// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
2/*
3 * Copyright 2018-2025 Amazon.com, Inc. or its affiliates. All rights reserved.
4 */
5
6#include "efa_com.h"
7#include "efa_com_cmd.h"
8
9int efa_com_create_qp(struct efa_com_dev *edev,
10 struct efa_com_create_qp_params *params,
11 struct efa_com_create_qp_result *res)
12{
13 struct efa_admin_create_qp_cmd create_qp_cmd = {};
14 struct efa_admin_create_qp_resp cmd_completion;
15 struct efa_com_admin_queue *aq = &edev->aq;
16 int err;
17
18 create_qp_cmd.aq_common_desc.opcode = EFA_ADMIN_CREATE_QP;
19
20 create_qp_cmd.pd = params->pd;
21 create_qp_cmd.qp_type = params->qp_type;
22 create_qp_cmd.rq_base_addr = params->rq_base_addr;
23 create_qp_cmd.send_cq_idx = params->send_cq_idx;
24 create_qp_cmd.recv_cq_idx = params->recv_cq_idx;
25 create_qp_cmd.qp_alloc_size.send_queue_ring_size =
26 params->sq_ring_size_in_bytes;
27 create_qp_cmd.qp_alloc_size.send_queue_depth =
28 params->sq_depth;
29 create_qp_cmd.qp_alloc_size.recv_queue_ring_size =
30 params->rq_ring_size_in_bytes;
31 create_qp_cmd.qp_alloc_size.recv_queue_depth =
32 params->rq_depth;
33 create_qp_cmd.uar = params->uarn;
34 create_qp_cmd.sl = params->sl;
35
36 if (params->unsolicited_write_recv)
37 EFA_SET(&create_qp_cmd.flags, EFA_ADMIN_CREATE_QP_CMD_UNSOLICITED_WRITE_RECV, 1);
38
39 err = efa_com_cmd_exec(aq,
40 cmd: (struct efa_admin_aq_entry *)&create_qp_cmd,
41 cmd_size: sizeof(create_qp_cmd),
42 comp: (struct efa_admin_acq_entry *)&cmd_completion,
43 comp_size: sizeof(cmd_completion));
44 if (err) {
45 ibdev_err_ratelimited(edev->efa_dev,
46 "Failed to create qp [%d]\n", err);
47 return err;
48 }
49
50 res->qp_handle = cmd_completion.qp_handle;
51 res->qp_num = cmd_completion.qp_num;
52 res->sq_db_offset = cmd_completion.sq_db_offset;
53 res->rq_db_offset = cmd_completion.rq_db_offset;
54 res->llq_descriptors_offset = cmd_completion.llq_descriptors_offset;
55 res->send_sub_cq_idx = cmd_completion.send_sub_cq_idx;
56 res->recv_sub_cq_idx = cmd_completion.recv_sub_cq_idx;
57
58 return 0;
59}
60
61int efa_com_modify_qp(struct efa_com_dev *edev,
62 struct efa_com_modify_qp_params *params)
63{
64 struct efa_com_admin_queue *aq = &edev->aq;
65 struct efa_admin_modify_qp_cmd cmd = {};
66 struct efa_admin_modify_qp_resp resp;
67 int err;
68
69 cmd.aq_common_desc.opcode = EFA_ADMIN_MODIFY_QP;
70 cmd.modify_mask = params->modify_mask;
71 cmd.qp_handle = params->qp_handle;
72 cmd.qp_state = params->qp_state;
73 cmd.cur_qp_state = params->cur_qp_state;
74 cmd.qkey = params->qkey;
75 cmd.sq_psn = params->sq_psn;
76 cmd.sq_drained_async_notify = params->sq_drained_async_notify;
77 cmd.rnr_retry = params->rnr_retry;
78
79 err = efa_com_cmd_exec(aq,
80 cmd: (struct efa_admin_aq_entry *)&cmd,
81 cmd_size: sizeof(cmd),
82 comp: (struct efa_admin_acq_entry *)&resp,
83 comp_size: sizeof(resp));
84 if (err) {
85 ibdev_err_ratelimited(
86 edev->efa_dev,
87 "Failed to modify qp-%u modify_mask[%#x] [%d]\n",
88 cmd.qp_handle, cmd.modify_mask, err);
89 return err;
90 }
91
92 return 0;
93}
94
95int efa_com_query_qp(struct efa_com_dev *edev,
96 struct efa_com_query_qp_params *params,
97 struct efa_com_query_qp_result *result)
98{
99 struct efa_com_admin_queue *aq = &edev->aq;
100 struct efa_admin_query_qp_cmd cmd = {};
101 struct efa_admin_query_qp_resp resp;
102 int err;
103
104 cmd.aq_common_desc.opcode = EFA_ADMIN_QUERY_QP;
105 cmd.qp_handle = params->qp_handle;
106
107 err = efa_com_cmd_exec(aq,
108 cmd: (struct efa_admin_aq_entry *)&cmd,
109 cmd_size: sizeof(cmd),
110 comp: (struct efa_admin_acq_entry *)&resp,
111 comp_size: sizeof(resp));
112 if (err) {
113 ibdev_err_ratelimited(edev->efa_dev,
114 "Failed to query qp-%u [%d]\n",
115 cmd.qp_handle, err);
116 return err;
117 }
118
119 result->qp_state = resp.qp_state;
120 result->qkey = resp.qkey;
121 result->sq_draining = resp.sq_draining;
122 result->sq_psn = resp.sq_psn;
123 result->rnr_retry = resp.rnr_retry;
124
125 return 0;
126}
127
128int efa_com_destroy_qp(struct efa_com_dev *edev,
129 struct efa_com_destroy_qp_params *params)
130{
131 struct efa_admin_destroy_qp_resp cmd_completion;
132 struct efa_admin_destroy_qp_cmd qp_cmd = {};
133 struct efa_com_admin_queue *aq = &edev->aq;
134 int err;
135
136 qp_cmd.aq_common_desc.opcode = EFA_ADMIN_DESTROY_QP;
137 qp_cmd.qp_handle = params->qp_handle;
138
139 err = efa_com_cmd_exec(aq,
140 cmd: (struct efa_admin_aq_entry *)&qp_cmd,
141 cmd_size: sizeof(qp_cmd),
142 comp: (struct efa_admin_acq_entry *)&cmd_completion,
143 comp_size: sizeof(cmd_completion));
144 if (err) {
145 ibdev_err_ratelimited(edev->efa_dev,
146 "Failed to destroy qp-%u [%d]\n",
147 qp_cmd.qp_handle, err);
148 return err;
149 }
150
151 return 0;
152}
153
154int efa_com_create_cq(struct efa_com_dev *edev,
155 struct efa_com_create_cq_params *params,
156 struct efa_com_create_cq_result *result)
157{
158 struct efa_admin_create_cq_resp cmd_completion = {};
159 struct efa_admin_create_cq_cmd create_cmd = {};
160 struct efa_com_admin_queue *aq = &edev->aq;
161 int err;
162
163 create_cmd.aq_common_desc.opcode = EFA_ADMIN_CREATE_CQ;
164 EFA_SET(&create_cmd.cq_caps_2,
165 EFA_ADMIN_CREATE_CQ_CMD_CQ_ENTRY_SIZE_WORDS,
166 params->entry_size_in_bytes / 4);
167 create_cmd.sub_cq_depth = params->sub_cq_depth;
168 create_cmd.num_sub_cqs = params->num_sub_cqs;
169 create_cmd.uar = params->uarn;
170 if (params->interrupt_mode_enabled) {
171 EFA_SET(&create_cmd.cq_caps_1,
172 EFA_ADMIN_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED, 1);
173 create_cmd.eqn = params->eqn;
174 }
175 if (params->set_src_addr) {
176 EFA_SET(&create_cmd.cq_caps_2,
177 EFA_ADMIN_CREATE_CQ_CMD_SET_SRC_ADDR, 1);
178 }
179 efa_com_set_dma_addr(addr: params->dma_addr,
180 addr_high: &create_cmd.cq_ba.mem_addr_high,
181 addr_low: &create_cmd.cq_ba.mem_addr_low);
182
183 err = efa_com_cmd_exec(aq,
184 cmd: (struct efa_admin_aq_entry *)&create_cmd,
185 cmd_size: sizeof(create_cmd),
186 comp: (struct efa_admin_acq_entry *)&cmd_completion,
187 comp_size: sizeof(cmd_completion));
188 if (err) {
189 ibdev_err_ratelimited(edev->efa_dev,
190 "Failed to create cq[%d]\n", err);
191 return err;
192 }
193
194 result->cq_idx = cmd_completion.cq_idx;
195 result->actual_depth = params->sub_cq_depth;
196 result->db_off = cmd_completion.db_offset;
197 result->db_valid = EFA_GET(&cmd_completion.flags,
198 EFA_ADMIN_CREATE_CQ_RESP_DB_VALID);
199
200 return 0;
201}
202
203int efa_com_destroy_cq(struct efa_com_dev *edev,
204 struct efa_com_destroy_cq_params *params)
205{
206 struct efa_admin_destroy_cq_cmd destroy_cmd = {};
207 struct efa_admin_destroy_cq_resp destroy_resp;
208 struct efa_com_admin_queue *aq = &edev->aq;
209 int err;
210
211 destroy_cmd.cq_idx = params->cq_idx;
212 destroy_cmd.aq_common_desc.opcode = EFA_ADMIN_DESTROY_CQ;
213
214 err = efa_com_cmd_exec(aq,
215 cmd: (struct efa_admin_aq_entry *)&destroy_cmd,
216 cmd_size: sizeof(destroy_cmd),
217 comp: (struct efa_admin_acq_entry *)&destroy_resp,
218 comp_size: sizeof(destroy_resp));
219
220 if (err) {
221 ibdev_err_ratelimited(edev->efa_dev,
222 "Failed to destroy CQ-%u [%d]\n",
223 params->cq_idx, err);
224 return err;
225 }
226
227 return 0;
228}
229
230int efa_com_register_mr(struct efa_com_dev *edev,
231 struct efa_com_reg_mr_params *params,
232 struct efa_com_reg_mr_result *result)
233{
234 struct efa_admin_reg_mr_resp cmd_completion;
235 struct efa_com_admin_queue *aq = &edev->aq;
236 struct efa_admin_reg_mr_cmd mr_cmd = {};
237 int err;
238
239 mr_cmd.aq_common_desc.opcode = EFA_ADMIN_REG_MR;
240 mr_cmd.pd = params->pd;
241 mr_cmd.mr_length = params->mr_length_in_bytes;
242 EFA_SET(&mr_cmd.flags, EFA_ADMIN_REG_MR_CMD_PHYS_PAGE_SIZE_SHIFT,
243 params->page_shift);
244 mr_cmd.iova = params->iova;
245 mr_cmd.permissions = params->permissions;
246
247 if (params->inline_pbl) {
248 memcpy(mr_cmd.pbl.inline_pbl_array,
249 params->pbl.inline_pbl_array,
250 sizeof(mr_cmd.pbl.inline_pbl_array));
251 } else {
252 mr_cmd.pbl.pbl.length = params->pbl.pbl.length;
253 mr_cmd.pbl.pbl.address.mem_addr_low =
254 params->pbl.pbl.address.mem_addr_low;
255 mr_cmd.pbl.pbl.address.mem_addr_high =
256 params->pbl.pbl.address.mem_addr_high;
257 EFA_SET(&mr_cmd.aq_common_desc.flags,
258 EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA, 1);
259 if (params->indirect)
260 EFA_SET(&mr_cmd.aq_common_desc.flags,
261 EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT, 1);
262 }
263
264 err = efa_com_cmd_exec(aq,
265 cmd: (struct efa_admin_aq_entry *)&mr_cmd,
266 cmd_size: sizeof(mr_cmd),
267 comp: (struct efa_admin_acq_entry *)&cmd_completion,
268 comp_size: sizeof(cmd_completion));
269 if (err) {
270 ibdev_err_ratelimited(edev->efa_dev,
271 "Failed to register mr [%d]\n", err);
272 return err;
273 }
274
275 result->l_key = cmd_completion.l_key;
276 result->r_key = cmd_completion.r_key;
277 result->ic_info.recv_ic_id = cmd_completion.recv_ic_id;
278 result->ic_info.rdma_read_ic_id = cmd_completion.rdma_read_ic_id;
279 result->ic_info.rdma_recv_ic_id = cmd_completion.rdma_recv_ic_id;
280 result->ic_info.recv_ic_id_valid = EFA_GET(&cmd_completion.validity,
281 EFA_ADMIN_REG_MR_RESP_RECV_IC_ID);
282 result->ic_info.rdma_read_ic_id_valid = EFA_GET(&cmd_completion.validity,
283 EFA_ADMIN_REG_MR_RESP_RDMA_READ_IC_ID);
284 result->ic_info.rdma_recv_ic_id_valid = EFA_GET(&cmd_completion.validity,
285 EFA_ADMIN_REG_MR_RESP_RDMA_RECV_IC_ID);
286
287 return 0;
288}
289
290int efa_com_dereg_mr(struct efa_com_dev *edev,
291 struct efa_com_dereg_mr_params *params)
292{
293 struct efa_admin_dereg_mr_resp cmd_completion;
294 struct efa_com_admin_queue *aq = &edev->aq;
295 struct efa_admin_dereg_mr_cmd mr_cmd = {};
296 int err;
297
298 mr_cmd.aq_common_desc.opcode = EFA_ADMIN_DEREG_MR;
299 mr_cmd.l_key = params->l_key;
300
301 err = efa_com_cmd_exec(aq,
302 cmd: (struct efa_admin_aq_entry *)&mr_cmd,
303 cmd_size: sizeof(mr_cmd),
304 comp: (struct efa_admin_acq_entry *)&cmd_completion,
305 comp_size: sizeof(cmd_completion));
306 if (err) {
307 ibdev_err_ratelimited(edev->efa_dev,
308 "Failed to de-register mr(lkey-%u) [%d]\n",
309 mr_cmd.l_key, err);
310 return err;
311 }
312
313 return 0;
314}
315
316int efa_com_create_ah(struct efa_com_dev *edev,
317 struct efa_com_create_ah_params *params,
318 struct efa_com_create_ah_result *result)
319{
320 struct efa_admin_create_ah_resp cmd_completion;
321 struct efa_com_admin_queue *aq = &edev->aq;
322 struct efa_admin_create_ah_cmd ah_cmd = {};
323 int err;
324
325 ah_cmd.aq_common_desc.opcode = EFA_ADMIN_CREATE_AH;
326
327 memcpy(ah_cmd.dest_addr, params->dest_addr, sizeof(ah_cmd.dest_addr));
328 ah_cmd.pd = params->pdn;
329
330 err = efa_com_cmd_exec(aq,
331 cmd: (struct efa_admin_aq_entry *)&ah_cmd,
332 cmd_size: sizeof(ah_cmd),
333 comp: (struct efa_admin_acq_entry *)&cmd_completion,
334 comp_size: sizeof(cmd_completion));
335 if (err) {
336 ibdev_err_ratelimited(edev->efa_dev,
337 "Failed to create ah for %pI6 [%d]\n",
338 ah_cmd.dest_addr, err);
339 return err;
340 }
341
342 result->ah = cmd_completion.ah;
343
344 return 0;
345}
346
347int efa_com_destroy_ah(struct efa_com_dev *edev,
348 struct efa_com_destroy_ah_params *params)
349{
350 struct efa_admin_destroy_ah_resp cmd_completion;
351 struct efa_admin_destroy_ah_cmd ah_cmd = {};
352 struct efa_com_admin_queue *aq = &edev->aq;
353 int err;
354
355 ah_cmd.aq_common_desc.opcode = EFA_ADMIN_DESTROY_AH;
356 ah_cmd.ah = params->ah;
357 ah_cmd.pd = params->pdn;
358
359 err = efa_com_cmd_exec(aq,
360 cmd: (struct efa_admin_aq_entry *)&ah_cmd,
361 cmd_size: sizeof(ah_cmd),
362 comp: (struct efa_admin_acq_entry *)&cmd_completion,
363 comp_size: sizeof(cmd_completion));
364 if (err) {
365 ibdev_err_ratelimited(edev->efa_dev,
366 "Failed to destroy ah-%d pd-%d [%d]\n",
367 ah_cmd.ah, ah_cmd.pd, err);
368 return err;
369 }
370
371 return 0;
372}
373
374bool
375efa_com_check_supported_feature_id(struct efa_com_dev *edev,
376 enum efa_admin_aq_feature_id feature_id)
377{
378 u32 feature_mask = 1 << feature_id;
379
380 /* Device attributes is always supported */
381 if (feature_id != EFA_ADMIN_DEVICE_ATTR &&
382 !(edev->supported_features & feature_mask))
383 return false;
384
385 return true;
386}
387
388static int efa_com_get_feature_ex(struct efa_com_dev *edev,
389 struct efa_admin_get_feature_resp *get_resp,
390 enum efa_admin_aq_feature_id feature_id,
391 dma_addr_t control_buf_dma_addr,
392 u32 control_buff_size)
393{
394 struct efa_admin_get_feature_cmd get_cmd = {};
395 struct efa_com_admin_queue *aq;
396 int err;
397
398 if (!efa_com_check_supported_feature_id(edev, feature_id)) {
399 ibdev_err_ratelimited(edev->efa_dev,
400 "Feature %d isn't supported\n",
401 feature_id);
402 return -EOPNOTSUPP;
403 }
404
405 aq = &edev->aq;
406
407 get_cmd.aq_common_descriptor.opcode = EFA_ADMIN_GET_FEATURE;
408
409 if (control_buff_size)
410 EFA_SET(&get_cmd.aq_common_descriptor.flags,
411 EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA, 1);
412
413 efa_com_set_dma_addr(addr: control_buf_dma_addr,
414 addr_high: &get_cmd.control_buffer.address.mem_addr_high,
415 addr_low: &get_cmd.control_buffer.address.mem_addr_low);
416
417 get_cmd.control_buffer.length = control_buff_size;
418 get_cmd.feature_common.feature_id = feature_id;
419 err = efa_com_cmd_exec(aq,
420 cmd: (struct efa_admin_aq_entry *)
421 &get_cmd,
422 cmd_size: sizeof(get_cmd),
423 comp: (struct efa_admin_acq_entry *)
424 get_resp,
425 comp_size: sizeof(*get_resp));
426
427 if (err) {
428 ibdev_err_ratelimited(
429 edev->efa_dev,
430 "Failed to submit get_feature command %d [%d]\n",
431 feature_id, err);
432 return err;
433 }
434
435 return 0;
436}
437
438static int efa_com_get_feature(struct efa_com_dev *edev,
439 struct efa_admin_get_feature_resp *get_resp,
440 enum efa_admin_aq_feature_id feature_id)
441{
442 return efa_com_get_feature_ex(edev, get_resp, feature_id, control_buf_dma_addr: 0, control_buff_size: 0);
443}
444
445int efa_com_get_device_attr(struct efa_com_dev *edev,
446 struct efa_com_get_device_attr_result *result)
447{
448 struct efa_admin_get_feature_resp resp;
449 int err;
450
451 err = efa_com_get_feature(edev, get_resp: &resp, feature_id: EFA_ADMIN_DEVICE_ATTR);
452 if (err) {
453 ibdev_err_ratelimited(edev->efa_dev,
454 "Failed to get device attributes %d\n",
455 err);
456 return err;
457 }
458
459 result->page_size_cap = resp.u.device_attr.page_size_cap;
460 result->fw_version = resp.u.device_attr.fw_version;
461 result->admin_api_version = resp.u.device_attr.admin_api_version;
462 result->device_version = resp.u.device_attr.device_version;
463 result->supported_features = resp.u.device_attr.supported_features;
464 result->phys_addr_width = resp.u.device_attr.phys_addr_width;
465 result->virt_addr_width = resp.u.device_attr.virt_addr_width;
466 result->db_bar = resp.u.device_attr.db_bar;
467 result->max_rdma_size = resp.u.device_attr.max_rdma_size;
468 result->device_caps = resp.u.device_attr.device_caps;
469 result->guid = resp.u.device_attr.guid;
470 result->max_link_speed_gbps = resp.u.device_attr.max_link_speed_gbps;
471
472 if (result->admin_api_version < 1) {
473 ibdev_err_ratelimited(
474 edev->efa_dev,
475 "Failed to get device attr api version [%u < 1]\n",
476 result->admin_api_version);
477 return -EINVAL;
478 }
479
480 edev->supported_features = resp.u.device_attr.supported_features;
481 err = efa_com_get_feature(edev, get_resp: &resp,
482 feature_id: EFA_ADMIN_QUEUE_ATTR);
483 if (err) {
484 ibdev_err_ratelimited(edev->efa_dev,
485 "Failed to get queue attributes %d\n",
486 err);
487 return err;
488 }
489
490 result->max_qp = resp.u.queue_attr.max_qp;
491 result->max_sq_depth = resp.u.queue_attr.max_sq_depth;
492 result->max_rq_depth = resp.u.queue_attr.max_rq_depth;
493 result->max_cq = resp.u.queue_attr.max_cq;
494 result->max_cq_depth = resp.u.queue_attr.max_cq_depth;
495 result->inline_buf_size = resp.u.queue_attr.inline_buf_size;
496 result->max_sq_sge = resp.u.queue_attr.max_wr_send_sges;
497 result->max_rq_sge = resp.u.queue_attr.max_wr_recv_sges;
498 result->max_mr = resp.u.queue_attr.max_mr;
499 result->max_mr_pages = resp.u.queue_attr.max_mr_pages;
500 result->max_pd = resp.u.queue_attr.max_pd;
501 result->max_ah = resp.u.queue_attr.max_ah;
502 result->max_llq_size = resp.u.queue_attr.max_llq_size;
503 result->sub_cqs_per_cq = resp.u.queue_attr.sub_cqs_per_cq;
504 result->max_wr_rdma_sge = resp.u.queue_attr.max_wr_rdma_sges;
505 result->max_tx_batch = resp.u.queue_attr.max_tx_batch;
506 result->min_sq_depth = resp.u.queue_attr.min_sq_depth;
507
508 err = efa_com_get_feature(edev, get_resp: &resp, feature_id: EFA_ADMIN_NETWORK_ATTR);
509 if (err) {
510 ibdev_err_ratelimited(edev->efa_dev,
511 "Failed to get network attributes %d\n",
512 err);
513 return err;
514 }
515
516 memcpy(result->addr, resp.u.network_attr.addr,
517 sizeof(resp.u.network_attr.addr));
518 result->mtu = resp.u.network_attr.mtu;
519
520 if (efa_com_check_supported_feature_id(edev,
521 feature_id: EFA_ADMIN_EVENT_QUEUE_ATTR)) {
522 err = efa_com_get_feature(edev, get_resp: &resp,
523 feature_id: EFA_ADMIN_EVENT_QUEUE_ATTR);
524 if (err) {
525 ibdev_err_ratelimited(
526 edev->efa_dev,
527 "Failed to get event queue attributes %d\n",
528 err);
529 return err;
530 }
531
532 result->max_eq = resp.u.event_queue_attr.max_eq;
533 result->max_eq_depth = resp.u.event_queue_attr.max_eq_depth;
534 result->event_bitmask = resp.u.event_queue_attr.event_bitmask;
535 }
536
537 return 0;
538}
539
540int efa_com_get_hw_hints(struct efa_com_dev *edev,
541 struct efa_com_get_hw_hints_result *result)
542{
543 struct efa_admin_get_feature_resp resp;
544 int err;
545
546 err = efa_com_get_feature(edev, get_resp: &resp, feature_id: EFA_ADMIN_HW_HINTS);
547 if (err) {
548 ibdev_err_ratelimited(edev->efa_dev,
549 "Failed to get hw hints %d\n", err);
550 return err;
551 }
552
553 result->admin_completion_timeout = resp.u.hw_hints.admin_completion_timeout;
554 result->driver_watchdog_timeout = resp.u.hw_hints.driver_watchdog_timeout;
555 result->mmio_read_timeout = resp.u.hw_hints.mmio_read_timeout;
556 result->poll_interval = resp.u.hw_hints.poll_interval;
557
558 return 0;
559}
560
561int efa_com_set_feature_ex(struct efa_com_dev *edev,
562 struct efa_admin_set_feature_resp *set_resp,
563 struct efa_admin_set_feature_cmd *set_cmd,
564 enum efa_admin_aq_feature_id feature_id,
565 dma_addr_t control_buf_dma_addr,
566 u32 control_buff_size)
567{
568 struct efa_com_admin_queue *aq;
569 int err;
570
571 if (!efa_com_check_supported_feature_id(edev, feature_id)) {
572 ibdev_err_ratelimited(edev->efa_dev,
573 "Feature %d isn't supported\n",
574 feature_id);
575 return -EOPNOTSUPP;
576 }
577
578 aq = &edev->aq;
579
580 set_cmd->aq_common_descriptor.opcode = EFA_ADMIN_SET_FEATURE;
581 if (control_buff_size) {
582 set_cmd->aq_common_descriptor.flags = 0;
583 EFA_SET(&set_cmd->aq_common_descriptor.flags,
584 EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA, 1);
585 efa_com_set_dma_addr(addr: control_buf_dma_addr,
586 addr_high: &set_cmd->control_buffer.address.mem_addr_high,
587 addr_low: &set_cmd->control_buffer.address.mem_addr_low);
588 }
589
590 set_cmd->control_buffer.length = control_buff_size;
591 set_cmd->feature_common.feature_id = feature_id;
592 err = efa_com_cmd_exec(aq,
593 cmd: (struct efa_admin_aq_entry *)set_cmd,
594 cmd_size: sizeof(*set_cmd),
595 comp: (struct efa_admin_acq_entry *)set_resp,
596 comp_size: sizeof(*set_resp));
597
598 if (err) {
599 ibdev_err_ratelimited(
600 edev->efa_dev,
601 "Failed to submit set_feature command %d error: %d\n",
602 feature_id, err);
603 return err;
604 }
605
606 return 0;
607}
608
609static int efa_com_set_feature(struct efa_com_dev *edev,
610 struct efa_admin_set_feature_resp *set_resp,
611 struct efa_admin_set_feature_cmd *set_cmd,
612 enum efa_admin_aq_feature_id feature_id)
613{
614 return efa_com_set_feature_ex(edev, set_resp, set_cmd, feature_id,
615 control_buf_dma_addr: 0, control_buff_size: 0);
616}
617
618int efa_com_set_aenq_config(struct efa_com_dev *edev, u32 groups)
619{
620 struct efa_admin_get_feature_resp get_resp;
621 struct efa_admin_set_feature_resp set_resp;
622 struct efa_admin_set_feature_cmd cmd = {};
623 int err;
624
625 ibdev_dbg(edev->efa_dev, "Configuring aenq with groups[%#x]\n", groups);
626
627 err = efa_com_get_feature(edev, get_resp: &get_resp, feature_id: EFA_ADMIN_AENQ_CONFIG);
628 if (err) {
629 ibdev_err_ratelimited(edev->efa_dev,
630 "Failed to get aenq attributes: %d\n",
631 err);
632 return err;
633 }
634
635 ibdev_dbg(edev->efa_dev,
636 "Get aenq groups: supported[%#x] enabled[%#x]\n",
637 get_resp.u.aenq.supported_groups,
638 get_resp.u.aenq.enabled_groups);
639
640 if ((get_resp.u.aenq.supported_groups & groups) != groups) {
641 ibdev_err_ratelimited(
642 edev->efa_dev,
643 "Trying to set unsupported aenq groups[%#x] supported[%#x]\n",
644 groups, get_resp.u.aenq.supported_groups);
645 return -EOPNOTSUPP;
646 }
647
648 cmd.u.aenq.enabled_groups = groups;
649 err = efa_com_set_feature(edev, set_resp: &set_resp, set_cmd: &cmd,
650 feature_id: EFA_ADMIN_AENQ_CONFIG);
651 if (err) {
652 ibdev_err_ratelimited(edev->efa_dev,
653 "Failed to set aenq attributes: %d\n",
654 err);
655 return err;
656 }
657
658 return 0;
659}
660
661int efa_com_alloc_pd(struct efa_com_dev *edev,
662 struct efa_com_alloc_pd_result *result)
663{
664 struct efa_com_admin_queue *aq = &edev->aq;
665 struct efa_admin_alloc_pd_cmd cmd = {};
666 struct efa_admin_alloc_pd_resp resp;
667 int err;
668
669 cmd.aq_common_descriptor.opcode = EFA_ADMIN_ALLOC_PD;
670
671 err = efa_com_cmd_exec(aq,
672 cmd: (struct efa_admin_aq_entry *)&cmd,
673 cmd_size: sizeof(cmd),
674 comp: (struct efa_admin_acq_entry *)&resp,
675 comp_size: sizeof(resp));
676 if (err) {
677 ibdev_err_ratelimited(edev->efa_dev,
678 "Failed to allocate pd[%d]\n", err);
679 return err;
680 }
681
682 result->pdn = resp.pd;
683
684 return 0;
685}
686
687int efa_com_dealloc_pd(struct efa_com_dev *edev,
688 struct efa_com_dealloc_pd_params *params)
689{
690 struct efa_com_admin_queue *aq = &edev->aq;
691 struct efa_admin_dealloc_pd_cmd cmd = {};
692 struct efa_admin_dealloc_pd_resp resp;
693 int err;
694
695 cmd.aq_common_descriptor.opcode = EFA_ADMIN_DEALLOC_PD;
696 cmd.pd = params->pdn;
697
698 err = efa_com_cmd_exec(aq,
699 cmd: (struct efa_admin_aq_entry *)&cmd,
700 cmd_size: sizeof(cmd),
701 comp: (struct efa_admin_acq_entry *)&resp,
702 comp_size: sizeof(resp));
703 if (err) {
704 ibdev_err_ratelimited(edev->efa_dev,
705 "Failed to deallocate pd-%u [%d]\n",
706 cmd.pd, err);
707 return err;
708 }
709
710 return 0;
711}
712
713int efa_com_alloc_uar(struct efa_com_dev *edev,
714 struct efa_com_alloc_uar_result *result)
715{
716 struct efa_com_admin_queue *aq = &edev->aq;
717 struct efa_admin_alloc_uar_cmd cmd = {};
718 struct efa_admin_alloc_uar_resp resp;
719 int err;
720
721 cmd.aq_common_descriptor.opcode = EFA_ADMIN_ALLOC_UAR;
722
723 err = efa_com_cmd_exec(aq,
724 cmd: (struct efa_admin_aq_entry *)&cmd,
725 cmd_size: sizeof(cmd),
726 comp: (struct efa_admin_acq_entry *)&resp,
727 comp_size: sizeof(resp));
728 if (err) {
729 ibdev_err_ratelimited(edev->efa_dev,
730 "Failed to allocate uar[%d]\n", err);
731 return err;
732 }
733
734 result->uarn = resp.uar;
735
736 return 0;
737}
738
739int efa_com_dealloc_uar(struct efa_com_dev *edev,
740 struct efa_com_dealloc_uar_params *params)
741{
742 struct efa_com_admin_queue *aq = &edev->aq;
743 struct efa_admin_dealloc_uar_cmd cmd = {};
744 struct efa_admin_dealloc_uar_resp resp;
745 int err;
746
747 cmd.aq_common_descriptor.opcode = EFA_ADMIN_DEALLOC_UAR;
748 cmd.uar = params->uarn;
749
750 err = efa_com_cmd_exec(aq,
751 cmd: (struct efa_admin_aq_entry *)&cmd,
752 cmd_size: sizeof(cmd),
753 comp: (struct efa_admin_acq_entry *)&resp,
754 comp_size: sizeof(resp));
755 if (err) {
756 ibdev_err_ratelimited(edev->efa_dev,
757 "Failed to deallocate uar-%u [%d]\n",
758 cmd.uar, err);
759 return err;
760 }
761
762 return 0;
763}
764
765int efa_com_get_stats(struct efa_com_dev *edev,
766 struct efa_com_get_stats_params *params,
767 union efa_com_get_stats_result *result)
768{
769 struct efa_com_admin_queue *aq = &edev->aq;
770 struct efa_admin_aq_get_stats_cmd cmd = {};
771 struct efa_admin_acq_get_stats_resp resp;
772 struct efa_admin_rdma_write_stats *rws;
773 struct efa_admin_rdma_read_stats *rrs;
774 struct efa_admin_messages_stats *ms;
775 struct efa_admin_network_stats *ns;
776 struct efa_admin_basic_stats *bs;
777 int err;
778
779 cmd.aq_common_descriptor.opcode = EFA_ADMIN_GET_STATS;
780 cmd.type = params->type;
781 cmd.scope = params->scope;
782 cmd.scope_modifier = params->scope_modifier;
783
784 err = efa_com_cmd_exec(aq,
785 cmd: (struct efa_admin_aq_entry *)&cmd,
786 cmd_size: sizeof(cmd),
787 comp: (struct efa_admin_acq_entry *)&resp,
788 comp_size: sizeof(resp));
789 if (err) {
790 ibdev_err_ratelimited(
791 edev->efa_dev,
792 "Failed to get stats type-%u scope-%u.%u [%d]\n",
793 cmd.type, cmd.scope, cmd.scope_modifier, err);
794 return err;
795 }
796
797 switch (cmd.type) {
798 case EFA_ADMIN_GET_STATS_TYPE_BASIC:
799 bs = &resp.u.basic_stats;
800 result->basic_stats.tx_bytes = bs->tx_bytes;
801 result->basic_stats.tx_pkts = bs->tx_pkts;
802 result->basic_stats.rx_bytes = bs->rx_bytes;
803 result->basic_stats.rx_pkts = bs->rx_pkts;
804 result->basic_stats.rx_drops = bs->rx_drops;
805 break;
806 case EFA_ADMIN_GET_STATS_TYPE_MESSAGES:
807 ms = &resp.u.messages_stats;
808 result->messages_stats.send_bytes = ms->send_bytes;
809 result->messages_stats.send_wrs = ms->send_wrs;
810 result->messages_stats.recv_bytes = ms->recv_bytes;
811 result->messages_stats.recv_wrs = ms->recv_wrs;
812 break;
813 case EFA_ADMIN_GET_STATS_TYPE_RDMA_READ:
814 rrs = &resp.u.rdma_read_stats;
815 result->rdma_read_stats.read_wrs = rrs->read_wrs;
816 result->rdma_read_stats.read_bytes = rrs->read_bytes;
817 result->rdma_read_stats.read_wr_err = rrs->read_wr_err;
818 result->rdma_read_stats.read_resp_bytes = rrs->read_resp_bytes;
819 break;
820 case EFA_ADMIN_GET_STATS_TYPE_RDMA_WRITE:
821 rws = &resp.u.rdma_write_stats;
822 result->rdma_write_stats.write_wrs = rws->write_wrs;
823 result->rdma_write_stats.write_bytes = rws->write_bytes;
824 result->rdma_write_stats.write_wr_err = rws->write_wr_err;
825 result->rdma_write_stats.write_recv_bytes = rws->write_recv_bytes;
826 break;
827 case EFA_ADMIN_GET_STATS_TYPE_NETWORK:
828 ns = &resp.u.network_stats;
829 result->network_stats.retrans_bytes = ns->retrans_bytes;
830 result->network_stats.retrans_pkts = ns->retrans_pkts;
831 result->network_stats.retrans_timeout_events = ns->retrans_timeout_events;
832 result->network_stats.unresponsive_remote_events = ns->unresponsive_remote_events;
833 result->network_stats.impaired_remote_conn_events = ns->impaired_remote_conn_events;
834 break;
835 }
836
837 return 0;
838}
839

source code of linux/drivers/infiniband/hw/efa/efa_com_cmd.c