1 // SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
2 /*
3  * Copyright 2018-2021 Amazon.com, Inc. or its affiliates. All rights reserved.
4  */
5 
6 #include "efa_com.h"
7 #include "efa_com_cmd.h"
8 
efa_com_create_qp(struct efa_com_dev * edev,struct efa_com_create_qp_params * params,struct efa_com_create_qp_result * res)9 int 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 
35 	err = efa_com_cmd_exec(aq,
36 			       (struct efa_admin_aq_entry *)&create_qp_cmd,
37 			       sizeof(create_qp_cmd),
38 			       (struct efa_admin_acq_entry *)&cmd_completion,
39 			       sizeof(cmd_completion));
40 	if (err) {
41 		ibdev_err_ratelimited(edev->efa_dev,
42 				      "Failed to create qp [%d]\n", err);
43 		return err;
44 	}
45 
46 	res->qp_handle = cmd_completion.qp_handle;
47 	res->qp_num = cmd_completion.qp_num;
48 	res->sq_db_offset = cmd_completion.sq_db_offset;
49 	res->rq_db_offset = cmd_completion.rq_db_offset;
50 	res->llq_descriptors_offset = cmd_completion.llq_descriptors_offset;
51 	res->send_sub_cq_idx = cmd_completion.send_sub_cq_idx;
52 	res->recv_sub_cq_idx = cmd_completion.recv_sub_cq_idx;
53 
54 	return 0;
55 }
56 
efa_com_modify_qp(struct efa_com_dev * edev,struct efa_com_modify_qp_params * params)57 int efa_com_modify_qp(struct efa_com_dev *edev,
58 		      struct efa_com_modify_qp_params *params)
59 {
60 	struct efa_com_admin_queue *aq = &edev->aq;
61 	struct efa_admin_modify_qp_cmd cmd = {};
62 	struct efa_admin_modify_qp_resp resp;
63 	int err;
64 
65 	cmd.aq_common_desc.opcode = EFA_ADMIN_MODIFY_QP;
66 	cmd.modify_mask = params->modify_mask;
67 	cmd.qp_handle = params->qp_handle;
68 	cmd.qp_state = params->qp_state;
69 	cmd.cur_qp_state = params->cur_qp_state;
70 	cmd.qkey = params->qkey;
71 	cmd.sq_psn = params->sq_psn;
72 	cmd.sq_drained_async_notify = params->sq_drained_async_notify;
73 	cmd.rnr_retry = params->rnr_retry;
74 
75 	err = efa_com_cmd_exec(aq,
76 			       (struct efa_admin_aq_entry *)&cmd,
77 			       sizeof(cmd),
78 			       (struct efa_admin_acq_entry *)&resp,
79 			       sizeof(resp));
80 	if (err) {
81 		ibdev_err_ratelimited(
82 			edev->efa_dev,
83 			"Failed to modify qp-%u modify_mask[%#x] [%d]\n",
84 			cmd.qp_handle, cmd.modify_mask, err);
85 		return err;
86 	}
87 
88 	return 0;
89 }
90 
efa_com_query_qp(struct efa_com_dev * edev,struct efa_com_query_qp_params * params,struct efa_com_query_qp_result * result)91 int efa_com_query_qp(struct efa_com_dev *edev,
92 		     struct efa_com_query_qp_params *params,
93 		     struct efa_com_query_qp_result *result)
94 {
95 	struct efa_com_admin_queue *aq = &edev->aq;
96 	struct efa_admin_query_qp_cmd cmd = {};
97 	struct efa_admin_query_qp_resp resp;
98 	int err;
99 
100 	cmd.aq_common_desc.opcode = EFA_ADMIN_QUERY_QP;
101 	cmd.qp_handle = params->qp_handle;
102 
103 	err = efa_com_cmd_exec(aq,
104 			       (struct efa_admin_aq_entry *)&cmd,
105 			       sizeof(cmd),
106 			       (struct efa_admin_acq_entry *)&resp,
107 			       sizeof(resp));
108 	if (err) {
109 		ibdev_err_ratelimited(edev->efa_dev,
110 				      "Failed to query qp-%u [%d]\n",
111 				      cmd.qp_handle, err);
112 		return err;
113 	}
114 
115 	result->qp_state = resp.qp_state;
116 	result->qkey = resp.qkey;
117 	result->sq_draining = resp.sq_draining;
118 	result->sq_psn = resp.sq_psn;
119 	result->rnr_retry = resp.rnr_retry;
120 
121 	return 0;
122 }
123 
efa_com_destroy_qp(struct efa_com_dev * edev,struct efa_com_destroy_qp_params * params)124 int efa_com_destroy_qp(struct efa_com_dev *edev,
125 		       struct efa_com_destroy_qp_params *params)
126 {
127 	struct efa_admin_destroy_qp_resp cmd_completion;
128 	struct efa_admin_destroy_qp_cmd qp_cmd = {};
129 	struct efa_com_admin_queue *aq = &edev->aq;
130 	int err;
131 
132 	qp_cmd.aq_common_desc.opcode = EFA_ADMIN_DESTROY_QP;
133 	qp_cmd.qp_handle = params->qp_handle;
134 
135 	err = efa_com_cmd_exec(aq,
136 			       (struct efa_admin_aq_entry *)&qp_cmd,
137 			       sizeof(qp_cmd),
138 			       (struct efa_admin_acq_entry *)&cmd_completion,
139 			       sizeof(cmd_completion));
140 	if (err) {
141 		ibdev_err_ratelimited(edev->efa_dev,
142 				      "Failed to destroy qp-%u [%d]\n",
143 				      qp_cmd.qp_handle, err);
144 		return err;
145 	}
146 
147 	return 0;
148 }
149 
efa_com_create_cq(struct efa_com_dev * edev,struct efa_com_create_cq_params * params,struct efa_com_create_cq_result * result)150 int efa_com_create_cq(struct efa_com_dev *edev,
151 		      struct efa_com_create_cq_params *params,
152 		      struct efa_com_create_cq_result *result)
153 {
154 	struct efa_admin_create_cq_resp cmd_completion = {};
155 	struct efa_admin_create_cq_cmd create_cmd = {};
156 	struct efa_com_admin_queue *aq = &edev->aq;
157 	int err;
158 
159 	create_cmd.aq_common_desc.opcode = EFA_ADMIN_CREATE_CQ;
160 	EFA_SET(&create_cmd.cq_caps_2,
161 		EFA_ADMIN_CREATE_CQ_CMD_CQ_ENTRY_SIZE_WORDS,
162 		params->entry_size_in_bytes / 4);
163 	create_cmd.cq_depth = params->cq_depth;
164 	create_cmd.num_sub_cqs = params->num_sub_cqs;
165 	create_cmd.uar = params->uarn;
166 	if (params->interrupt_mode_enabled) {
167 		EFA_SET(&create_cmd.cq_caps_1,
168 			EFA_ADMIN_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED, 1);
169 		create_cmd.eqn = params->eqn;
170 	}
171 
172 	efa_com_set_dma_addr(params->dma_addr,
173 			     &create_cmd.cq_ba.mem_addr_high,
174 			     &create_cmd.cq_ba.mem_addr_low);
175 
176 	err = efa_com_cmd_exec(aq,
177 			       (struct efa_admin_aq_entry *)&create_cmd,
178 			       sizeof(create_cmd),
179 			       (struct efa_admin_acq_entry *)&cmd_completion,
180 			       sizeof(cmd_completion));
181 	if (err) {
182 		ibdev_err_ratelimited(edev->efa_dev,
183 				      "Failed to create cq[%d]\n", err);
184 		return err;
185 	}
186 
187 	result->cq_idx = cmd_completion.cq_idx;
188 	result->actual_depth = params->cq_depth;
189 	result->db_off = cmd_completion.db_offset;
190 	result->db_valid = EFA_GET(&cmd_completion.flags,
191 				   EFA_ADMIN_CREATE_CQ_RESP_DB_VALID);
192 
193 	return 0;
194 }
195 
efa_com_destroy_cq(struct efa_com_dev * edev,struct efa_com_destroy_cq_params * params)196 int efa_com_destroy_cq(struct efa_com_dev *edev,
197 		       struct efa_com_destroy_cq_params *params)
198 {
199 	struct efa_admin_destroy_cq_cmd destroy_cmd = {};
200 	struct efa_admin_destroy_cq_resp destroy_resp;
201 	struct efa_com_admin_queue *aq = &edev->aq;
202 	int err;
203 
204 	destroy_cmd.cq_idx = params->cq_idx;
205 	destroy_cmd.aq_common_desc.opcode = EFA_ADMIN_DESTROY_CQ;
206 
207 	err = efa_com_cmd_exec(aq,
208 			       (struct efa_admin_aq_entry *)&destroy_cmd,
209 			       sizeof(destroy_cmd),
210 			       (struct efa_admin_acq_entry *)&destroy_resp,
211 			       sizeof(destroy_resp));
212 
213 	if (err) {
214 		ibdev_err_ratelimited(edev->efa_dev,
215 				      "Failed to destroy CQ-%u [%d]\n",
216 				      params->cq_idx, err);
217 		return err;
218 	}
219 
220 	return 0;
221 }
222 
efa_com_register_mr(struct efa_com_dev * edev,struct efa_com_reg_mr_params * params,struct efa_com_reg_mr_result * result)223 int efa_com_register_mr(struct efa_com_dev *edev,
224 			struct efa_com_reg_mr_params *params,
225 			struct efa_com_reg_mr_result *result)
226 {
227 	struct efa_admin_reg_mr_resp cmd_completion;
228 	struct efa_com_admin_queue *aq = &edev->aq;
229 	struct efa_admin_reg_mr_cmd mr_cmd = {};
230 	int err;
231 
232 	mr_cmd.aq_common_desc.opcode = EFA_ADMIN_REG_MR;
233 	mr_cmd.pd = params->pd;
234 	mr_cmd.mr_length = params->mr_length_in_bytes;
235 	EFA_SET(&mr_cmd.flags, EFA_ADMIN_REG_MR_CMD_PHYS_PAGE_SIZE_SHIFT,
236 		params->page_shift);
237 	mr_cmd.iova = params->iova;
238 	mr_cmd.permissions = params->permissions;
239 
240 	if (params->inline_pbl) {
241 		memcpy(mr_cmd.pbl.inline_pbl_array,
242 		       params->pbl.inline_pbl_array,
243 		       sizeof(mr_cmd.pbl.inline_pbl_array));
244 	} else {
245 		mr_cmd.pbl.pbl.length = params->pbl.pbl.length;
246 		mr_cmd.pbl.pbl.address.mem_addr_low =
247 			params->pbl.pbl.address.mem_addr_low;
248 		mr_cmd.pbl.pbl.address.mem_addr_high =
249 			params->pbl.pbl.address.mem_addr_high;
250 		EFA_SET(&mr_cmd.aq_common_desc.flags,
251 			EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA, 1);
252 		if (params->indirect)
253 			EFA_SET(&mr_cmd.aq_common_desc.flags,
254 				EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT, 1);
255 	}
256 
257 	err = efa_com_cmd_exec(aq,
258 			       (struct efa_admin_aq_entry *)&mr_cmd,
259 			       sizeof(mr_cmd),
260 			       (struct efa_admin_acq_entry *)&cmd_completion,
261 			       sizeof(cmd_completion));
262 	if (err) {
263 		ibdev_err_ratelimited(edev->efa_dev,
264 				      "Failed to register mr [%d]\n", err);
265 		return err;
266 	}
267 
268 	result->l_key = cmd_completion.l_key;
269 	result->r_key = cmd_completion.r_key;
270 
271 	return 0;
272 }
273 
efa_com_dereg_mr(struct efa_com_dev * edev,struct efa_com_dereg_mr_params * params)274 int efa_com_dereg_mr(struct efa_com_dev *edev,
275 		     struct efa_com_dereg_mr_params *params)
276 {
277 	struct efa_admin_dereg_mr_resp cmd_completion;
278 	struct efa_com_admin_queue *aq = &edev->aq;
279 	struct efa_admin_dereg_mr_cmd mr_cmd = {};
280 	int err;
281 
282 	mr_cmd.aq_common_desc.opcode = EFA_ADMIN_DEREG_MR;
283 	mr_cmd.l_key = params->l_key;
284 
285 	err = efa_com_cmd_exec(aq,
286 			       (struct efa_admin_aq_entry *)&mr_cmd,
287 			       sizeof(mr_cmd),
288 			       (struct efa_admin_acq_entry *)&cmd_completion,
289 			       sizeof(cmd_completion));
290 	if (err) {
291 		ibdev_err_ratelimited(edev->efa_dev,
292 				      "Failed to de-register mr(lkey-%u) [%d]\n",
293 				      mr_cmd.l_key, err);
294 		return err;
295 	}
296 
297 	return 0;
298 }
299 
efa_com_create_ah(struct efa_com_dev * edev,struct efa_com_create_ah_params * params,struct efa_com_create_ah_result * result)300 int efa_com_create_ah(struct efa_com_dev *edev,
301 		      struct efa_com_create_ah_params *params,
302 		      struct efa_com_create_ah_result *result)
303 {
304 	struct efa_admin_create_ah_resp cmd_completion;
305 	struct efa_com_admin_queue *aq = &edev->aq;
306 	struct efa_admin_create_ah_cmd ah_cmd = {};
307 	int err;
308 
309 	ah_cmd.aq_common_desc.opcode = EFA_ADMIN_CREATE_AH;
310 
311 	memcpy(ah_cmd.dest_addr, params->dest_addr, sizeof(ah_cmd.dest_addr));
312 	ah_cmd.pd = params->pdn;
313 
314 	err = efa_com_cmd_exec(aq,
315 			       (struct efa_admin_aq_entry *)&ah_cmd,
316 			       sizeof(ah_cmd),
317 			       (struct efa_admin_acq_entry *)&cmd_completion,
318 			       sizeof(cmd_completion));
319 	if (err) {
320 		ibdev_err_ratelimited(edev->efa_dev,
321 				      "Failed to create ah for %pI6 [%d]\n",
322 				      ah_cmd.dest_addr, err);
323 		return err;
324 	}
325 
326 	result->ah = cmd_completion.ah;
327 
328 	return 0;
329 }
330 
efa_com_destroy_ah(struct efa_com_dev * edev,struct efa_com_destroy_ah_params * params)331 int efa_com_destroy_ah(struct efa_com_dev *edev,
332 		       struct efa_com_destroy_ah_params *params)
333 {
334 	struct efa_admin_destroy_ah_resp cmd_completion;
335 	struct efa_admin_destroy_ah_cmd ah_cmd = {};
336 	struct efa_com_admin_queue *aq = &edev->aq;
337 	int err;
338 
339 	ah_cmd.aq_common_desc.opcode = EFA_ADMIN_DESTROY_AH;
340 	ah_cmd.ah = params->ah;
341 	ah_cmd.pd = params->pdn;
342 
343 	err = efa_com_cmd_exec(aq,
344 			       (struct efa_admin_aq_entry *)&ah_cmd,
345 			       sizeof(ah_cmd),
346 			       (struct efa_admin_acq_entry *)&cmd_completion,
347 			       sizeof(cmd_completion));
348 	if (err) {
349 		ibdev_err_ratelimited(edev->efa_dev,
350 				      "Failed to destroy ah-%d pd-%d [%d]\n",
351 				      ah_cmd.ah, ah_cmd.pd, err);
352 		return err;
353 	}
354 
355 	return 0;
356 }
357 
358 bool
efa_com_check_supported_feature_id(struct efa_com_dev * edev,enum efa_admin_aq_feature_id feature_id)359 efa_com_check_supported_feature_id(struct efa_com_dev *edev,
360 				   enum efa_admin_aq_feature_id feature_id)
361 {
362 	u32 feature_mask = 1 << feature_id;
363 
364 	/* Device attributes is always supported */
365 	if (feature_id != EFA_ADMIN_DEVICE_ATTR &&
366 	    !(edev->supported_features & feature_mask))
367 		return false;
368 
369 	return true;
370 }
371 
efa_com_get_feature_ex(struct efa_com_dev * edev,struct efa_admin_get_feature_resp * get_resp,enum efa_admin_aq_feature_id feature_id,dma_addr_t control_buf_dma_addr,u32 control_buff_size)372 static int efa_com_get_feature_ex(struct efa_com_dev *edev,
373 				  struct efa_admin_get_feature_resp *get_resp,
374 				  enum efa_admin_aq_feature_id feature_id,
375 				  dma_addr_t control_buf_dma_addr,
376 				  u32 control_buff_size)
377 {
378 	struct efa_admin_get_feature_cmd get_cmd = {};
379 	struct efa_com_admin_queue *aq;
380 	int err;
381 
382 	if (!efa_com_check_supported_feature_id(edev, feature_id)) {
383 		ibdev_err_ratelimited(edev->efa_dev,
384 				      "Feature %d isn't supported\n",
385 				      feature_id);
386 		return -EOPNOTSUPP;
387 	}
388 
389 	aq = &edev->aq;
390 
391 	get_cmd.aq_common_descriptor.opcode = EFA_ADMIN_GET_FEATURE;
392 
393 	if (control_buff_size)
394 		EFA_SET(&get_cmd.aq_common_descriptor.flags,
395 			EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA, 1);
396 
397 	efa_com_set_dma_addr(control_buf_dma_addr,
398 			     &get_cmd.control_buffer.address.mem_addr_high,
399 			     &get_cmd.control_buffer.address.mem_addr_low);
400 
401 	get_cmd.control_buffer.length = control_buff_size;
402 	get_cmd.feature_common.feature_id = feature_id;
403 	err = efa_com_cmd_exec(aq,
404 			       (struct efa_admin_aq_entry *)
405 			       &get_cmd,
406 			       sizeof(get_cmd),
407 			       (struct efa_admin_acq_entry *)
408 			       get_resp,
409 			       sizeof(*get_resp));
410 
411 	if (err) {
412 		ibdev_err_ratelimited(
413 			edev->efa_dev,
414 			"Failed to submit get_feature command %d [%d]\n",
415 			feature_id, err);
416 		return err;
417 	}
418 
419 	return 0;
420 }
421 
efa_com_get_feature(struct efa_com_dev * edev,struct efa_admin_get_feature_resp * get_resp,enum efa_admin_aq_feature_id feature_id)422 static int efa_com_get_feature(struct efa_com_dev *edev,
423 			       struct efa_admin_get_feature_resp *get_resp,
424 			       enum efa_admin_aq_feature_id feature_id)
425 {
426 	return efa_com_get_feature_ex(edev, get_resp, feature_id, 0, 0);
427 }
428 
efa_com_get_device_attr(struct efa_com_dev * edev,struct efa_com_get_device_attr_result * result)429 int efa_com_get_device_attr(struct efa_com_dev *edev,
430 			    struct efa_com_get_device_attr_result *result)
431 {
432 	struct efa_admin_get_feature_resp resp;
433 	int err;
434 
435 	err = efa_com_get_feature(edev, &resp, EFA_ADMIN_DEVICE_ATTR);
436 	if (err) {
437 		ibdev_err_ratelimited(edev->efa_dev,
438 				      "Failed to get device attributes %d\n",
439 				      err);
440 		return err;
441 	}
442 
443 	result->page_size_cap = resp.u.device_attr.page_size_cap;
444 	result->fw_version = resp.u.device_attr.fw_version;
445 	result->admin_api_version = resp.u.device_attr.admin_api_version;
446 	result->device_version = resp.u.device_attr.device_version;
447 	result->supported_features = resp.u.device_attr.supported_features;
448 	result->phys_addr_width = resp.u.device_attr.phys_addr_width;
449 	result->virt_addr_width = resp.u.device_attr.virt_addr_width;
450 	result->db_bar = resp.u.device_attr.db_bar;
451 	result->max_rdma_size = resp.u.device_attr.max_rdma_size;
452 	result->device_caps = resp.u.device_attr.device_caps;
453 
454 	if (result->admin_api_version < 1) {
455 		ibdev_err_ratelimited(
456 			edev->efa_dev,
457 			"Failed to get device attr api version [%u < 1]\n",
458 			result->admin_api_version);
459 		return -EINVAL;
460 	}
461 
462 	edev->supported_features = resp.u.device_attr.supported_features;
463 	err = efa_com_get_feature(edev, &resp,
464 				  EFA_ADMIN_QUEUE_ATTR);
465 	if (err) {
466 		ibdev_err_ratelimited(edev->efa_dev,
467 				      "Failed to get queue attributes %d\n",
468 				      err);
469 		return err;
470 	}
471 
472 	result->max_qp = resp.u.queue_attr.max_qp;
473 	result->max_sq_depth = resp.u.queue_attr.max_sq_depth;
474 	result->max_rq_depth = resp.u.queue_attr.max_rq_depth;
475 	result->max_cq = resp.u.queue_attr.max_cq;
476 	result->max_cq_depth = resp.u.queue_attr.max_cq_depth;
477 	result->inline_buf_size = resp.u.queue_attr.inline_buf_size;
478 	result->max_sq_sge = resp.u.queue_attr.max_wr_send_sges;
479 	result->max_rq_sge = resp.u.queue_attr.max_wr_recv_sges;
480 	result->max_mr = resp.u.queue_attr.max_mr;
481 	result->max_mr_pages = resp.u.queue_attr.max_mr_pages;
482 	result->max_pd = resp.u.queue_attr.max_pd;
483 	result->max_ah = resp.u.queue_attr.max_ah;
484 	result->max_llq_size = resp.u.queue_attr.max_llq_size;
485 	result->sub_cqs_per_cq = resp.u.queue_attr.sub_cqs_per_cq;
486 	result->max_wr_rdma_sge = resp.u.queue_attr.max_wr_rdma_sges;
487 	result->max_tx_batch = resp.u.queue_attr.max_tx_batch;
488 	result->min_sq_depth = resp.u.queue_attr.min_sq_depth;
489 
490 	err = efa_com_get_feature(edev, &resp, EFA_ADMIN_NETWORK_ATTR);
491 	if (err) {
492 		ibdev_err_ratelimited(edev->efa_dev,
493 				      "Failed to get network attributes %d\n",
494 				      err);
495 		return err;
496 	}
497 
498 	memcpy(result->addr, resp.u.network_attr.addr,
499 	       sizeof(resp.u.network_attr.addr));
500 	result->mtu = resp.u.network_attr.mtu;
501 
502 	if (efa_com_check_supported_feature_id(edev,
503 					       EFA_ADMIN_EVENT_QUEUE_ATTR)) {
504 		err = efa_com_get_feature(edev, &resp,
505 					  EFA_ADMIN_EVENT_QUEUE_ATTR);
506 		if (err) {
507 			ibdev_err_ratelimited(
508 				edev->efa_dev,
509 				"Failed to get event queue attributes %d\n",
510 				err);
511 			return err;
512 		}
513 
514 		result->max_eq = resp.u.event_queue_attr.max_eq;
515 		result->max_eq_depth = resp.u.event_queue_attr.max_eq_depth;
516 		result->event_bitmask = resp.u.event_queue_attr.event_bitmask;
517 	}
518 
519 	return 0;
520 }
521 
efa_com_get_hw_hints(struct efa_com_dev * edev,struct efa_com_get_hw_hints_result * result)522 int efa_com_get_hw_hints(struct efa_com_dev *edev,
523 			 struct efa_com_get_hw_hints_result *result)
524 {
525 	struct efa_admin_get_feature_resp resp;
526 	int err;
527 
528 	err = efa_com_get_feature(edev, &resp, EFA_ADMIN_HW_HINTS);
529 	if (err) {
530 		ibdev_err_ratelimited(edev->efa_dev,
531 				      "Failed to get hw hints %d\n", err);
532 		return err;
533 	}
534 
535 	result->admin_completion_timeout = resp.u.hw_hints.admin_completion_timeout;
536 	result->driver_watchdog_timeout = resp.u.hw_hints.driver_watchdog_timeout;
537 	result->mmio_read_timeout = resp.u.hw_hints.mmio_read_timeout;
538 	result->poll_interval = resp.u.hw_hints.poll_interval;
539 
540 	return 0;
541 }
542 
efa_com_set_feature_ex(struct efa_com_dev * edev,struct efa_admin_set_feature_resp * set_resp,struct efa_admin_set_feature_cmd * set_cmd,enum efa_admin_aq_feature_id feature_id,dma_addr_t control_buf_dma_addr,u32 control_buff_size)543 int efa_com_set_feature_ex(struct efa_com_dev *edev,
544 			   struct efa_admin_set_feature_resp *set_resp,
545 			   struct efa_admin_set_feature_cmd *set_cmd,
546 			   enum efa_admin_aq_feature_id feature_id,
547 			   dma_addr_t control_buf_dma_addr,
548 			   u32 control_buff_size)
549 {
550 	struct efa_com_admin_queue *aq;
551 	int err;
552 
553 	if (!efa_com_check_supported_feature_id(edev, feature_id)) {
554 		ibdev_err_ratelimited(edev->efa_dev,
555 				      "Feature %d isn't supported\n",
556 				      feature_id);
557 		return -EOPNOTSUPP;
558 	}
559 
560 	aq = &edev->aq;
561 
562 	set_cmd->aq_common_descriptor.opcode = EFA_ADMIN_SET_FEATURE;
563 	if (control_buff_size) {
564 		set_cmd->aq_common_descriptor.flags = 0;
565 		EFA_SET(&set_cmd->aq_common_descriptor.flags,
566 			EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA, 1);
567 		efa_com_set_dma_addr(control_buf_dma_addr,
568 				     &set_cmd->control_buffer.address.mem_addr_high,
569 				     &set_cmd->control_buffer.address.mem_addr_low);
570 	}
571 
572 	set_cmd->control_buffer.length = control_buff_size;
573 	set_cmd->feature_common.feature_id = feature_id;
574 	err = efa_com_cmd_exec(aq,
575 			       (struct efa_admin_aq_entry *)set_cmd,
576 			       sizeof(*set_cmd),
577 			       (struct efa_admin_acq_entry *)set_resp,
578 			       sizeof(*set_resp));
579 
580 	if (err) {
581 		ibdev_err_ratelimited(
582 			edev->efa_dev,
583 			"Failed to submit set_feature command %d error: %d\n",
584 			feature_id, err);
585 		return err;
586 	}
587 
588 	return 0;
589 }
590 
efa_com_set_feature(struct efa_com_dev * edev,struct efa_admin_set_feature_resp * set_resp,struct efa_admin_set_feature_cmd * set_cmd,enum efa_admin_aq_feature_id feature_id)591 static int efa_com_set_feature(struct efa_com_dev *edev,
592 			       struct efa_admin_set_feature_resp *set_resp,
593 			       struct efa_admin_set_feature_cmd *set_cmd,
594 			       enum efa_admin_aq_feature_id feature_id)
595 {
596 	return efa_com_set_feature_ex(edev, set_resp, set_cmd, feature_id,
597 				      0, 0);
598 }
599 
efa_com_set_aenq_config(struct efa_com_dev * edev,u32 groups)600 int efa_com_set_aenq_config(struct efa_com_dev *edev, u32 groups)
601 {
602 	struct efa_admin_get_feature_resp get_resp;
603 	struct efa_admin_set_feature_resp set_resp;
604 	struct efa_admin_set_feature_cmd cmd = {};
605 	int err;
606 
607 	ibdev_dbg(edev->efa_dev, "Configuring aenq with groups[%#x]\n", groups);
608 
609 	err = efa_com_get_feature(edev, &get_resp, EFA_ADMIN_AENQ_CONFIG);
610 	if (err) {
611 		ibdev_err_ratelimited(edev->efa_dev,
612 				      "Failed to get aenq attributes: %d\n",
613 				      err);
614 		return err;
615 	}
616 
617 	ibdev_dbg(edev->efa_dev,
618 		  "Get aenq groups: supported[%#x] enabled[%#x]\n",
619 		  get_resp.u.aenq.supported_groups,
620 		  get_resp.u.aenq.enabled_groups);
621 
622 	if ((get_resp.u.aenq.supported_groups & groups) != groups) {
623 		ibdev_err_ratelimited(
624 			edev->efa_dev,
625 			"Trying to set unsupported aenq groups[%#x] supported[%#x]\n",
626 			groups, get_resp.u.aenq.supported_groups);
627 		return -EOPNOTSUPP;
628 	}
629 
630 	cmd.u.aenq.enabled_groups = groups;
631 	err = efa_com_set_feature(edev, &set_resp, &cmd,
632 				  EFA_ADMIN_AENQ_CONFIG);
633 	if (err) {
634 		ibdev_err_ratelimited(edev->efa_dev,
635 				      "Failed to set aenq attributes: %d\n",
636 				      err);
637 		return err;
638 	}
639 
640 	return 0;
641 }
642 
efa_com_alloc_pd(struct efa_com_dev * edev,struct efa_com_alloc_pd_result * result)643 int efa_com_alloc_pd(struct efa_com_dev *edev,
644 		     struct efa_com_alloc_pd_result *result)
645 {
646 	struct efa_com_admin_queue *aq = &edev->aq;
647 	struct efa_admin_alloc_pd_cmd cmd = {};
648 	struct efa_admin_alloc_pd_resp resp;
649 	int err;
650 
651 	cmd.aq_common_descriptor.opcode = EFA_ADMIN_ALLOC_PD;
652 
653 	err = efa_com_cmd_exec(aq,
654 			       (struct efa_admin_aq_entry *)&cmd,
655 			       sizeof(cmd),
656 			       (struct efa_admin_acq_entry *)&resp,
657 			       sizeof(resp));
658 	if (err) {
659 		ibdev_err_ratelimited(edev->efa_dev,
660 				      "Failed to allocate pd[%d]\n", err);
661 		return err;
662 	}
663 
664 	result->pdn = resp.pd;
665 
666 	return 0;
667 }
668 
efa_com_dealloc_pd(struct efa_com_dev * edev,struct efa_com_dealloc_pd_params * params)669 int efa_com_dealloc_pd(struct efa_com_dev *edev,
670 		       struct efa_com_dealloc_pd_params *params)
671 {
672 	struct efa_com_admin_queue *aq = &edev->aq;
673 	struct efa_admin_dealloc_pd_cmd cmd = {};
674 	struct efa_admin_dealloc_pd_resp resp;
675 	int err;
676 
677 	cmd.aq_common_descriptor.opcode = EFA_ADMIN_DEALLOC_PD;
678 	cmd.pd = params->pdn;
679 
680 	err = efa_com_cmd_exec(aq,
681 			       (struct efa_admin_aq_entry *)&cmd,
682 			       sizeof(cmd),
683 			       (struct efa_admin_acq_entry *)&resp,
684 			       sizeof(resp));
685 	if (err) {
686 		ibdev_err_ratelimited(edev->efa_dev,
687 				      "Failed to deallocate pd-%u [%d]\n",
688 				      cmd.pd, err);
689 		return err;
690 	}
691 
692 	return 0;
693 }
694 
efa_com_alloc_uar(struct efa_com_dev * edev,struct efa_com_alloc_uar_result * result)695 int efa_com_alloc_uar(struct efa_com_dev *edev,
696 		      struct efa_com_alloc_uar_result *result)
697 {
698 	struct efa_com_admin_queue *aq = &edev->aq;
699 	struct efa_admin_alloc_uar_cmd cmd = {};
700 	struct efa_admin_alloc_uar_resp resp;
701 	int err;
702 
703 	cmd.aq_common_descriptor.opcode = EFA_ADMIN_ALLOC_UAR;
704 
705 	err = efa_com_cmd_exec(aq,
706 			       (struct efa_admin_aq_entry *)&cmd,
707 			       sizeof(cmd),
708 			       (struct efa_admin_acq_entry *)&resp,
709 			       sizeof(resp));
710 	if (err) {
711 		ibdev_err_ratelimited(edev->efa_dev,
712 				      "Failed to allocate uar[%d]\n", err);
713 		return err;
714 	}
715 
716 	result->uarn = resp.uar;
717 
718 	return 0;
719 }
720 
efa_com_dealloc_uar(struct efa_com_dev * edev,struct efa_com_dealloc_uar_params * params)721 int efa_com_dealloc_uar(struct efa_com_dev *edev,
722 			struct efa_com_dealloc_uar_params *params)
723 {
724 	struct efa_com_admin_queue *aq = &edev->aq;
725 	struct efa_admin_dealloc_uar_cmd cmd = {};
726 	struct efa_admin_dealloc_uar_resp resp;
727 	int err;
728 
729 	cmd.aq_common_descriptor.opcode = EFA_ADMIN_DEALLOC_UAR;
730 	cmd.uar = params->uarn;
731 
732 	err = efa_com_cmd_exec(aq,
733 			       (struct efa_admin_aq_entry *)&cmd,
734 			       sizeof(cmd),
735 			       (struct efa_admin_acq_entry *)&resp,
736 			       sizeof(resp));
737 	if (err) {
738 		ibdev_err_ratelimited(edev->efa_dev,
739 				      "Failed to deallocate uar-%u [%d]\n",
740 				      cmd.uar, err);
741 		return err;
742 	}
743 
744 	return 0;
745 }
746 
efa_com_get_stats(struct efa_com_dev * edev,struct efa_com_get_stats_params * params,union efa_com_get_stats_result * result)747 int efa_com_get_stats(struct efa_com_dev *edev,
748 		      struct efa_com_get_stats_params *params,
749 		      union efa_com_get_stats_result *result)
750 {
751 	struct efa_com_admin_queue *aq = &edev->aq;
752 	struct efa_admin_aq_get_stats_cmd cmd = {};
753 	struct efa_admin_acq_get_stats_resp resp;
754 	int err;
755 
756 	cmd.aq_common_descriptor.opcode = EFA_ADMIN_GET_STATS;
757 	cmd.type = params->type;
758 	cmd.scope = params->scope;
759 	cmd.scope_modifier = params->scope_modifier;
760 
761 	err = efa_com_cmd_exec(aq,
762 			       (struct efa_admin_aq_entry *)&cmd,
763 			       sizeof(cmd),
764 			       (struct efa_admin_acq_entry *)&resp,
765 			       sizeof(resp));
766 	if (err) {
767 		ibdev_err_ratelimited(
768 			edev->efa_dev,
769 			"Failed to get stats type-%u scope-%u.%u [%d]\n",
770 			cmd.type, cmd.scope, cmd.scope_modifier, err);
771 		return err;
772 	}
773 
774 	switch (cmd.type) {
775 	case EFA_ADMIN_GET_STATS_TYPE_BASIC:
776 		result->basic_stats.tx_bytes = resp.u.basic_stats.tx_bytes;
777 		result->basic_stats.tx_pkts = resp.u.basic_stats.tx_pkts;
778 		result->basic_stats.rx_bytes = resp.u.basic_stats.rx_bytes;
779 		result->basic_stats.rx_pkts = resp.u.basic_stats.rx_pkts;
780 		result->basic_stats.rx_drops = resp.u.basic_stats.rx_drops;
781 		break;
782 	case EFA_ADMIN_GET_STATS_TYPE_MESSAGES:
783 		result->messages_stats.send_bytes = resp.u.messages_stats.send_bytes;
784 		result->messages_stats.send_wrs = resp.u.messages_stats.send_wrs;
785 		result->messages_stats.recv_bytes = resp.u.messages_stats.recv_bytes;
786 		result->messages_stats.recv_wrs = resp.u.messages_stats.recv_wrs;
787 		break;
788 	case EFA_ADMIN_GET_STATS_TYPE_RDMA_READ:
789 		result->rdma_read_stats.read_wrs = resp.u.rdma_read_stats.read_wrs;
790 		result->rdma_read_stats.read_bytes = resp.u.rdma_read_stats.read_bytes;
791 		result->rdma_read_stats.read_wr_err = resp.u.rdma_read_stats.read_wr_err;
792 		result->rdma_read_stats.read_resp_bytes = resp.u.rdma_read_stats.read_resp_bytes;
793 		break;
794 	}
795 
796 	return 0;
797 }
798