]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blame - drivers/infiniband/hw/bnxt_re/qplib_sp.c
projects / mirror_ubuntu-artful-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
RDMA/bnxt_re: Add bnxt_re RoCE driver
[mirror_ubuntu-artful-kernel.git] / drivers / infiniband / hw / bnxt_re / qplib_sp.c
CommitLineData
1ac5a404
SX		 1/*
2 * Broadcom NetXtreme-E RoCE driver.
3 *
4 * Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term
5 * Broadcom refers to Broadcom Limited and/or its subsidiaries.
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 * BSD license below:
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 *
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in
21 * the documentation and/or other materials provided with the
22 * distribution.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
26 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
31 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
32 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
33 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
34 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 *
36 * Description: Slow Path Operators
37 */
38
39#include <linux/interrupt.h>
40#include <linux/spinlock.h>
41#include <linux/sched.h>
42#include <linux/pci.h>
43
44#include "roce_hsi.h"
45
46#include "qplib_res.h"
47#include "qplib_rcfw.h"
48#include "qplib_sp.h"
49
50const struct bnxt_qplib_gid bnxt_qplib_gid_zero = {{ 0, 0, 0, 0, 0, 0, 0, 0,
51 0, 0, 0, 0, 0, 0, 0, 0 } };
52
53/* Device */
54int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
55 struct bnxt_qplib_dev_attr *attr)
56{
57 struct cmdq_query_func req;
58 struct creq_query_func_resp *resp;
59 struct creq_query_func_resp_sb *sb;
60 u16 cmd_flags = 0;
61 u32 temp;
62 u8 *tqm_alloc;
63 int i;
64
65 RCFW_CMD_PREP(req, QUERY_FUNC, cmd_flags);
66
67 req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
68 resp = (struct creq_query_func_resp *)
69 bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void **)&sb,
70 0);
71 if (!resp) {
72 dev_err(&rcfw->pdev->dev, "QPLIB: SP: QUERY_FUNC send failed");
73 return -EINVAL;
74 }
75 if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
76 /* Cmd timed out */
77 dev_err(&rcfw->pdev->dev, "QPLIB: SP: QUERY_FUNC timed out");
78 return -ETIMEDOUT;
79 }
80 if (resp->status ||
81 le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
82 dev_err(&rcfw->pdev->dev, "QPLIB: SP: QUERY_FUNC failed ");
83 dev_err(&rcfw->pdev->dev,
84 "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
85 resp->status, le16_to_cpu(req.cookie),
86 le16_to_cpu(resp->cookie));
87 return -EINVAL;
88 }
89 /* Extract the context from the side buffer */
90 attr->max_qp = le32_to_cpu(sb->max_qp);
91 attr->max_qp_rd_atom =
92 sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
93 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom;
94 attr->max_qp_init_rd_atom =
95 sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
96 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom;
97 attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr);
98 attr->max_qp_sges = sb->max_sge;
99 attr->max_cq = le32_to_cpu(sb->max_cq);
100 attr->max_cq_wqes = le32_to_cpu(sb->max_cqe);
101 attr->max_cq_sges = attr->max_qp_sges;
102 attr->max_mr = le32_to_cpu(sb->max_mr);
103 attr->max_mw = le32_to_cpu(sb->max_mw);
104
105 attr->max_mr_size = le64_to_cpu(sb->max_mr_size);
106 attr->max_pd = 64 * 1024;
107 attr->max_raw_ethy_qp = le32_to_cpu(sb->max_raw_eth_qp);
108 attr->max_ah = le32_to_cpu(sb->max_ah);
109
110 attr->max_fmr = le32_to_cpu(sb->max_fmr);
111 attr->max_map_per_fmr = sb->max_map_per_fmr;
112
113 attr->max_srq = le16_to_cpu(sb->max_srq);
114 attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1;
115 attr->max_srq_sges = sb->max_srq_sge;
116 /* Bono only reports 1 PKEY for now, but it can support > 1 */
117 attr->max_pkey = le32_to_cpu(sb->max_pkeys);
118
119 attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
120 attr->l2_db_size = (sb->l2_db_space_size + 1) * PAGE_SIZE;
121 attr->max_sgid = le32_to_cpu(sb->max_gid);
122
123 strlcpy(attr->fw_ver, "20.6.28.0", sizeof(attr->fw_ver));
124
125 for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) {
126 temp = le32_to_cpu(sb->tqm_alloc_reqs[i]);
127 tqm_alloc = (u8 *)&temp;
128 attr->tqm_alloc_reqs[i * 4] = *tqm_alloc;
129 attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc);
130 attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc);
131 attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
132 }
133 return 0;
134}
135
136/* SGID */
137int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res,
138 struct bnxt_qplib_sgid_tbl *sgid_tbl, int index,
139 struct bnxt_qplib_gid *gid)
140{
141 if (index > sgid_tbl->max) {
142 dev_err(&res->pdev->dev,
143 "QPLIB: Index %d exceeded SGID table max (%d)",
144 index, sgid_tbl->max);
145 return -EINVAL;
146 }
147 memcpy(gid, &sgid_tbl->tbl[index], sizeof(*gid));
148 return 0;
149}
150
151int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
152 struct bnxt_qplib_gid *gid, bool update)
153{
154 struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
155 struct bnxt_qplib_res,
156 sgid_tbl);
157 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
158 int index;
159
160 if (!sgid_tbl) {
161 dev_err(&res->pdev->dev, "QPLIB: SGID table not allocated");
162 return -EINVAL;
163 }
164 /* Do we need a sgid_lock here? */
165 if (!sgid_tbl->active) {
166 dev_err(&res->pdev->dev,
167 "QPLIB: SGID table has no active entries");
168 return -ENOMEM;
169 }
170 for (index = 0; index < sgid_tbl->max; index++) {
171 if (!memcmp(&sgid_tbl->tbl[index], gid, sizeof(*gid)))
172 break;
173 }
174 if (index == sgid_tbl->max) {
175 dev_warn(&res->pdev->dev, "GID not found in the SGID table");
176 return 0;
177 }
178 /* Remove GID from the SGID table */
179 if (update) {
180 struct cmdq_delete_gid req;
181 struct creq_delete_gid_resp *resp;
182 u16 cmd_flags = 0;
183
184 RCFW_CMD_PREP(req, DELETE_GID, cmd_flags);
185 if (sgid_tbl->hw_id[index] == 0xFFFF) {
186 dev_err(&res->pdev->dev,
187 "QPLIB: GID entry contains an invalid HW id");
188 return -EINVAL;
189 }
190 req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]);
191 resp = (struct creq_delete_gid_resp *)
192 bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, NULL,
193 0);
194 if (!resp) {
195 dev_err(&res->pdev->dev,
196 "QPLIB: SP: DELETE_GID send failed");
197 return -EINVAL;
198 }
199 if (!bnxt_qplib_rcfw_wait_for_resp(rcfw,
200 le16_to_cpu(req.cookie))) {
201 /* Cmd timed out */
202 dev_err(&res->pdev->dev,
203 "QPLIB: SP: DELETE_GID timed out");
204 return -ETIMEDOUT;
205 }
206 if (resp->status ||
207 le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
208 dev_err(&res->pdev->dev,
209 "QPLIB: SP: DELETE_GID failed ");
210 dev_err(&res->pdev->dev,
211 "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
212 resp->status, le16_to_cpu(req.cookie),
213 le16_to_cpu(resp->cookie));
214 return -EINVAL;
215 }
216 }
217 memcpy(&sgid_tbl->tbl[index], &bnxt_qplib_gid_zero,
218 sizeof(bnxt_qplib_gid_zero));
219 sgid_tbl->active--;
220 dev_dbg(&res->pdev->dev,
221 "QPLIB: SGID deleted hw_id[0x%x] = 0x%x active = 0x%x",
222 index, sgid_tbl->hw_id[index], sgid_tbl->active);
223 sgid_tbl->hw_id[index] = (u16)-1;
224
225 /* unlock */
226 return 0;
227}
228
229int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
230 struct bnxt_qplib_gid *gid, u8 *smac, u16 vlan_id,
231 bool update, u32 *index)
232{
233 struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
234 struct bnxt_qplib_res,
235 sgid_tbl);
236 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
237 int i, free_idx, rc = 0;
238
239 if (!sgid_tbl) {
240 dev_err(&res->pdev->dev, "QPLIB: SGID table not allocated");
241 return -EINVAL;
242 }
243 /* Do we need a sgid_lock here? */
244 if (sgid_tbl->active == sgid_tbl->max) {
245 dev_err(&res->pdev->dev, "QPLIB: SGID table is full");
246 return -ENOMEM;
247 }
248 free_idx = sgid_tbl->max;
249 for (i = 0; i < sgid_tbl->max; i++) {
250 if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid))) {
251 dev_dbg(&res->pdev->dev,
252 "QPLIB: SGID entry already exist in entry %d!",
253 i);
254 *index = i;
255 return -EALREADY;
256 } else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero,
257 sizeof(bnxt_qplib_gid_zero)) &&
258 free_idx == sgid_tbl->max) {
259 free_idx = i;
260 }
261 }
262 if (free_idx == sgid_tbl->max) {
263 dev_err(&res->pdev->dev,
264 "QPLIB: SGID table is FULL but count is not MAX??");
265 return -ENOMEM;
266 }
267 if (update) {
268 struct cmdq_add_gid req;
269 struct creq_add_gid_resp *resp;
270 u16 cmd_flags = 0;
271 u32 temp32[4];
272 u16 temp16[3];
273
274 RCFW_CMD_PREP(req, ADD_GID, cmd_flags);
275
276 memcpy(temp32, gid->data, sizeof(struct bnxt_qplib_gid));
277 req.gid[0] = cpu_to_be32(temp32[3]);
278 req.gid[1] = cpu_to_be32(temp32[2]);
279 req.gid[2] = cpu_to_be32(temp32[1]);
280 req.gid[3] = cpu_to_be32(temp32[0]);
281 if (vlan_id != 0xFFFF)
282 req.vlan = cpu_to_le16((vlan_id &
283 CMDQ_ADD_GID_VLAN_VLAN_ID_MASK) |
284 CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
285 CMDQ_ADD_GID_VLAN_VLAN_EN);
286
287 /* MAC in network format */
288 memcpy(temp16, smac, 6);
289 req.src_mac[0] = cpu_to_be16(temp16[0]);
290 req.src_mac[1] = cpu_to_be16(temp16[1]);
291 req.src_mac[2] = cpu_to_be16(temp16[2]);
292
293 resp = (struct creq_add_gid_resp *)
294 bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
295 NULL, 0);
296 if (!resp) {
297 dev_err(&res->pdev->dev,
298 "QPLIB: SP: ADD_GID send failed");
299 return -EINVAL;
300 }
301 if (!bnxt_qplib_rcfw_wait_for_resp(rcfw,
302 le16_to_cpu(req.cookie))) {
303 /* Cmd timed out */
304 dev_err(&res->pdev->dev,
305 "QPIB: SP: ADD_GID timed out");
306 return -ETIMEDOUT;
307 }
308 if (resp->status ||
309 le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
310 dev_err(&res->pdev->dev, "QPLIB: SP: ADD_GID failed ");
311 dev_err(&res->pdev->dev,
312 "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
313 resp->status, le16_to_cpu(req.cookie),
314 le16_to_cpu(resp->cookie));
315 return -EINVAL;
316 }
317 sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp->xid);
318 }
319 /* Add GID to the sgid_tbl */
320 memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid));
321 sgid_tbl->active++;
322 dev_dbg(&res->pdev->dev,
323 "QPLIB: SGID added hw_id[0x%x] = 0x%x active = 0x%x",
324 free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active);
325
326 *index = free_idx;
327 /* unlock */
328 return rc;
329}
330
331/* pkeys */
332int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res,
333 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index,
334 u16 *pkey)
335{
336 if (index == 0xFFFF) {
337 *pkey = 0xFFFF;
338 return 0;
339 }
340 if (index > pkey_tbl->max) {
341 dev_err(&res->pdev->dev,
342 "QPLIB: Index %d exceeded PKEY table max (%d)",
343 index, pkey_tbl->max);
344 return -EINVAL;
345 }
346 memcpy(pkey, &pkey_tbl->tbl[index], sizeof(*pkey));
347 return 0;
348}
349
350int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res,
351 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
352 bool update)
353{
354 int i, rc = 0;
355
356 if (!pkey_tbl) {
357 dev_err(&res->pdev->dev, "QPLIB: PKEY table not allocated");
358 return -EINVAL;
359 }
360
361 /* Do we need a pkey_lock here? */
362 if (!pkey_tbl->active) {
363 dev_err(&res->pdev->dev,
364 "QPLIB: PKEY table has no active entries");
365 return -ENOMEM;
366 }
367 for (i = 0; i < pkey_tbl->max; i++) {
368 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
369 break;
370 }
371 if (i == pkey_tbl->max) {
372 dev_err(&res->pdev->dev,
373 "QPLIB: PKEY 0x%04x not found in the pkey table",
374 *pkey);
375 return -ENOMEM;
376 }
377 memset(&pkey_tbl->tbl[i], 0, sizeof(*pkey));
378 pkey_tbl->active--;
379
380 /* unlock */
381 return rc;
382}
383
384int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res,
385 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
386 bool update)
387{
388 int i, free_idx, rc = 0;
389
390 if (!pkey_tbl) {
391 dev_err(&res->pdev->dev, "QPLIB: PKEY table not allocated");
392 return -EINVAL;
393 }
394
395 /* Do we need a pkey_lock here? */
396 if (pkey_tbl->active == pkey_tbl->max) {
397 dev_err(&res->pdev->dev, "QPLIB: PKEY table is full");
398 return -ENOMEM;
399 }
400 free_idx = pkey_tbl->max;
401 for (i = 0; i < pkey_tbl->max; i++) {
402 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
403 return -EALREADY;
404 else if (!pkey_tbl->tbl[i] && free_idx == pkey_tbl->max)
405 free_idx = i;
406 }
407 if (free_idx == pkey_tbl->max) {
408 dev_err(&res->pdev->dev,
409 "QPLIB: PKEY table is FULL but count is not MAX??");
410 return -ENOMEM;
411 }
412 /* Add PKEY to the pkey_tbl */
413 memcpy(&pkey_tbl->tbl[free_idx], pkey, sizeof(*pkey));
414 pkey_tbl->active++;
415
416 /* unlock */
417 return rc;
418}
419
420/* AH */
421int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah)
422{
423 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
424 struct cmdq_create_ah req;
425 struct creq_create_ah_resp *resp;
426 u16 cmd_flags = 0;
427 u32 temp32[4];
428 u16 temp16[3];
429
430 RCFW_CMD_PREP(req, CREATE_AH, cmd_flags);
431
432 memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid));
433 req.dgid[0] = cpu_to_le32(temp32[0]);
434 req.dgid[1] = cpu_to_le32(temp32[1]);
435 req.dgid[2] = cpu_to_le32(temp32[2]);
436 req.dgid[3] = cpu_to_le32(temp32[3]);
437
438 req.type = ah->nw_type;
439 req.hop_limit = ah->hop_limit;
440 req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]);
441 req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label &
442 CMDQ_CREATE_AH_FLOW_LABEL_MASK) |
443 CMDQ_CREATE_AH_DEST_VLAN_ID_MASK);
444 req.pd_id = cpu_to_le32(ah->pd->id);
445 req.traffic_class = ah->traffic_class;
446
447 /* MAC in network format */
448 memcpy(temp16, ah->dmac, 6);
449 req.dest_mac[0] = cpu_to_le16(temp16[0]);
450 req.dest_mac[1] = cpu_to_le16(temp16[1]);
451 req.dest_mac[2] = cpu_to_le16(temp16[2]);
452
453 resp = (struct creq_create_ah_resp *)
454 bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
455 NULL, 1);
456 if (!resp) {
457 dev_err(&rcfw->pdev->dev, "QPLIB: SP: CREATE_AH send failed");
458 return -EINVAL;
459 }
460 if (!bnxt_qplib_rcfw_block_for_resp(rcfw, le16_to_cpu(req.cookie))) {
461 /* Cmd timed out */
462 dev_err(&rcfw->pdev->dev, "QPLIB: SP: CREATE_AH timed out");
463 return -ETIMEDOUT;
464 }
465 if (resp->status ||
466 le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
467 dev_err(&rcfw->pdev->dev, "QPLIB: SP: CREATE_AH failed ");
468 dev_err(&rcfw->pdev->dev,
469 "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
470 resp->status, le16_to_cpu(req.cookie),
471 le16_to_cpu(resp->cookie));
472 return -EINVAL;
473 }
474 ah->id = le32_to_cpu(resp->xid);
475 return 0;
476}
477
478int bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah)
479{
480 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
481 struct cmdq_destroy_ah req;
482 struct creq_destroy_ah_resp *resp;
483 u16 cmd_flags = 0;
484
485 /* Clean up the AH table in the device */
486 RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags);
487
488 req.ah_cid = cpu_to_le32(ah->id);
489
490 resp = (struct creq_destroy_ah_resp *)
491 bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
492 NULL, 1);
493 if (!resp) {
494 dev_err(&rcfw->pdev->dev, "QPLIB: SP: DESTROY_AH send failed");
495 return -EINVAL;
496 }
497 if (!bnxt_qplib_rcfw_block_for_resp(rcfw, le16_to_cpu(req.cookie))) {
498 /* Cmd timed out */
499 dev_err(&rcfw->pdev->dev, "QPLIB: SP: DESTROY_AH timed out");
500 return -ETIMEDOUT;
501 }
502 if (resp->status ||
503 le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
504 dev_err(&rcfw->pdev->dev, "QPLIB: SP: DESTROY_AH failed ");
505 dev_err(&rcfw->pdev->dev,
506 "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
507 resp->status, le16_to_cpu(req.cookie),
508 le16_to_cpu(resp->cookie));
509 return -EINVAL;
510 }
511 return 0;
512}
513
514/* MRW */
515int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
516{
517 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
518 struct cmdq_deallocate_key req;
519 struct creq_deallocate_key_resp *resp;
520 u16 cmd_flags = 0;
521
522 if (mrw->lkey == 0xFFFFFFFF) {
523 dev_info(&res->pdev->dev,
524 "QPLIB: SP: Free a reserved lkey MRW");
525 return 0;
526 }
527
528 RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags);
529
530 req.mrw_flags = mrw->type;
531
532 if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1) ||
533 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
534 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
535 req.key = cpu_to_le32(mrw->rkey);
536 else
537 req.key = cpu_to_le32(mrw->lkey);
538
539 resp = (struct creq_deallocate_key_resp *)
540 bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
541 NULL, 0);
542 if (!resp) {
543 dev_err(&res->pdev->dev, "QPLIB: SP: FREE_MR send failed");
544 return -EINVAL;
545 }
546 if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
547 /* Cmd timed out */
548 dev_err(&res->pdev->dev, "QPLIB: SP: FREE_MR timed out");
549 return -ETIMEDOUT;
550 }
551 if (resp->status ||
552 le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
553 dev_err(&res->pdev->dev, "QPLIB: SP: FREE_MR failed ");
554 dev_err(&res->pdev->dev,
555 "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
556 resp->status, le16_to_cpu(req.cookie),
557 le16_to_cpu(resp->cookie));
558 return -EINVAL;
559 }
560 /* Free the qplib's MRW memory */
561 if (mrw->hwq.max_elements)
562 bnxt_qplib_free_hwq(res->pdev, &mrw->hwq);
563
564 return 0;
565}
566
567int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
568{
569 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
570 struct cmdq_allocate_mrw req;
571 struct creq_allocate_mrw_resp *resp;
572 u16 cmd_flags = 0;
573 unsigned long tmp;
574
575 RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags);
576
577 req.pd_id = cpu_to_le32(mrw->pd->id);
578 req.mrw_flags = mrw->type;
579 if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR &&
580 mrw->flags & BNXT_QPLIB_FR_PMR) ||
581 mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A ||
582 mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)
583 req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY;
584 tmp = (unsigned long)mrw;
585 req.mrw_handle = cpu_to_le64(tmp);
586
587 resp = (struct creq_allocate_mrw_resp *)
588 bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
589 NULL, 0);
590 if (!resp) {
591 dev_err(&rcfw->pdev->dev, "QPLIB: SP: ALLOC_MRW send failed");
592 return -EINVAL;
593 }
594 if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
595 /* Cmd timed out */
596 dev_err(&rcfw->pdev->dev, "QPLIB: SP: ALLOC_MRW timed out");
597 return -ETIMEDOUT;
598 }
599 if (resp->status ||
600 le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
601 dev_err(&rcfw->pdev->dev, "QPLIB: SP: ALLOC_MRW failed ");
602 dev_err(&rcfw->pdev->dev,
603 "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
604 resp->status, le16_to_cpu(req.cookie),
605 le16_to_cpu(resp->cookie));
606 return -EINVAL;
607 }
608 if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1) ||
609 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
610 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
611 mrw->rkey = le32_to_cpu(resp->xid);
612 else
613 mrw->lkey = le32_to_cpu(resp->xid);
614 return 0;
615}
616
617int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw,
618 bool block)
619{
620 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
621 struct cmdq_deregister_mr req;
622 struct creq_deregister_mr_resp *resp;
623 u16 cmd_flags = 0;
624 int rc;
625
626 RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags);
627
628 req.lkey = cpu_to_le32(mrw->lkey);
629 resp = (struct creq_deregister_mr_resp *)
630 bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
631 NULL, block);
632 if (!resp) {
633 dev_err(&rcfw->pdev->dev, "QPLIB: SP: DEREG_MR send failed");
634 return -EINVAL;
635 }
636 if (block)
637 rc = bnxt_qplib_rcfw_block_for_resp(rcfw,
638 le16_to_cpu(req.cookie));
639 else
640 rc = bnxt_qplib_rcfw_wait_for_resp(rcfw,
641 le16_to_cpu(req.cookie));
642 if (!rc) {
643 /* Cmd timed out */
644 dev_err(&res->pdev->dev, "QPLIB: SP: DEREG_MR timed out");
645 return -ETIMEDOUT;
646 }
647 if (resp->status ||
648 le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
649 dev_err(&rcfw->pdev->dev, "QPLIB: SP: DEREG_MR failed ");
650 dev_err(&rcfw->pdev->dev,
651 "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
652 resp->status, le16_to_cpu(req.cookie),
653 le16_to_cpu(resp->cookie));
654 return -EINVAL;
655 }
656
657 /* Free the qplib's MR memory */
658 if (mrw->hwq.max_elements) {
659 mrw->va = 0;
660 mrw->total_size = 0;
661 bnxt_qplib_free_hwq(res->pdev, &mrw->hwq);
662 }
663
664 return 0;
665}
666
667int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
668 u64 *pbl_tbl, int num_pbls, bool block)
669{
670 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
671 struct cmdq_register_mr req;
672 struct creq_register_mr_resp *resp;
673 u16 cmd_flags = 0, level;
674 int pg_ptrs, pages, i, rc;
675 dma_addr_t **pbl_ptr;
676 u32 pg_size;
677
678 if (num_pbls) {
679 pg_ptrs = roundup_pow_of_two(num_pbls);
680 pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
681 if (!pages)
682 pages++;
683
684 if (pages > MAX_PBL_LVL_1_PGS) {
685 dev_err(&res->pdev->dev, "QPLIB: SP: Reg MR pages ");
686 dev_err(&res->pdev->dev,
687 "requested (0x%x) exceeded max (0x%x)",
688 pages, MAX_PBL_LVL_1_PGS);
689 return -ENOMEM;
690 }
691 /* Free the hwq if it already exist, must be a rereg */
692 if (mr->hwq.max_elements)
693 bnxt_qplib_free_hwq(res->pdev, &mr->hwq);
694
695 mr->hwq.max_elements = pages;
696 rc = bnxt_qplib_alloc_init_hwq(res->pdev, &mr->hwq, NULL, 0,
697 &mr->hwq.max_elements,
698 PAGE_SIZE, 0, PAGE_SIZE,
699 HWQ_TYPE_CTX);
700 if (rc) {
701 dev_err(&res->pdev->dev,
702 "SP: Reg MR memory allocation failed");
703 return -ENOMEM;
704 }
705 /* Write to the hwq */
706 pbl_ptr = (dma_addr_t **)mr->hwq.pbl_ptr;
707 for (i = 0; i < num_pbls; i++)
708 pbl_ptr[PTR_PG(i)][PTR_IDX(i)] =
709 (pbl_tbl[i] & PAGE_MASK) | PTU_PTE_VALID;
710 }
711
712 RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags);
713
714 /* Configure the request */
715 if (mr->hwq.level == PBL_LVL_MAX) {
716 level = 0;
717 req.pbl = 0;
718 pg_size = PAGE_SIZE;
719 } else {
720 level = mr->hwq.level + 1;
721 req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]);
722 pg_size = mr->hwq.pbl[PBL_LVL_0].pg_size;
723 }
724 req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) |
725 ((ilog2(pg_size) <<
726 CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) &
727 CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK);
728 req.access = (mr->flags & 0xFFFF);
729 req.va = cpu_to_le64(mr->va);
730 req.key = cpu_to_le32(mr->lkey);
731 req.mr_size = cpu_to_le64(mr->total_size);
732
733 resp = (struct creq_register_mr_resp *)
734 bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
735 NULL, block);
736 if (!resp) {
737 dev_err(&res->pdev->dev, "SP: REG_MR send failed");
738 rc = -EINVAL;
739 goto fail;
740 }
741 if (block)
742 rc = bnxt_qplib_rcfw_block_for_resp(rcfw,
743 le16_to_cpu(req.cookie));
744 else
745 rc = bnxt_qplib_rcfw_wait_for_resp(rcfw,
746 le16_to_cpu(req.cookie));
747 if (!rc) {
748 /* Cmd timed out */
749 dev_err(&res->pdev->dev, "SP: REG_MR timed out");
750 rc = -ETIMEDOUT;
751 goto fail;
752 }
753 if (resp->status ||
754 le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
755 dev_err(&res->pdev->dev, "QPLIB: SP: REG_MR failed ");
756 dev_err(&res->pdev->dev,
757 "QPLIB: SP: with status 0x%x cmdq 0x%x resp 0x%x",
758 resp->status, le16_to_cpu(req.cookie),
759 le16_to_cpu(resp->cookie));
760 rc = -EINVAL;
761 goto fail;
762 }
763 return 0;
764
765fail:
766 if (mr->hwq.max_elements)
767 bnxt_qplib_free_hwq(res->pdev, &mr->hwq);
768 return rc;
769}
770
771int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res,
772 struct bnxt_qplib_frpl *frpl,
773 int max_pg_ptrs)
774{
775 int pg_ptrs, pages, rc;
776
777 /* Re-calculate the max to fit the HWQ allocation model */
778 pg_ptrs = roundup_pow_of_two(max_pg_ptrs);
779 pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
780 if (!pages)
781 pages++;
782
783 if (pages > MAX_PBL_LVL_1_PGS)
784 return -ENOMEM;
785
786 frpl->hwq.max_elements = pages;
787 rc = bnxt_qplib_alloc_init_hwq(res->pdev, &frpl->hwq, NULL, 0,
788 &frpl->hwq.max_elements, PAGE_SIZE, 0,
789 PAGE_SIZE, HWQ_TYPE_CTX);
790 if (!rc)
791 frpl->max_pg_ptrs = pg_ptrs;
792
793 return rc;
794}
795
796int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res,
797 struct bnxt_qplib_frpl *frpl)
798{
799 bnxt_qplib_free_hwq(res->pdev, &frpl->hwq);
800 return 0;
801}
802
803int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids)
804{
805 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
806 struct cmdq_map_tc_to_cos req;
807 struct creq_map_tc_to_cos_resp *resp;
808 u16 cmd_flags = 0;
809 int tleft;
810
811 RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags);
812 req.cos0 = cpu_to_le16(cids[0]);
813 req.cos1 = cpu_to_le16(cids[1]);
814
815 resp = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, NULL, 0);
816 if (!resp) {
817 dev_err(&res->pdev->dev, "QPLIB: SP: MAP_TC2COS send failed");
818 return -EINVAL;
819 }
820
821 tleft = bnxt_qplib_rcfw_block_for_resp(rcfw, le16_to_cpu(req.cookie));
822 if (!tleft) {
823 dev_err(&res->pdev->dev, "QPLIB: SP: MAP_TC2COS timed out");
824 return -ETIMEDOUT;
825 }
826
827 if (resp->status ||
828 le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
829 dev_err(&res->pdev->dev, "QPLIB: SP: MAP_TC2COS failed ");
830 dev_err(&res->pdev->dev,
831 "QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
832 resp->status, le16_to_cpu(req.cookie),
833 le16_to_cpu(resp->cookie));
834 return -EINVAL;
835 }
836
837 return 0;
838}
Ubuntu Artful kernel mirror