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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / infiniband / hw / bnxt_re / qplib_sp.c
blob40296b97d21e6c1534dbe82c4164e57ed78c9018
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 #define dev_fmt(fmt) "QPLIB: " fmt
40
41 #include <linux/interrupt.h>
42 #include <linux/spinlock.h>
43 #include <linux/sched.h>
44 #include <linux/pci.h>
45
46 #include "roce_hsi.h"
47
48 #include "qplib_res.h"
49 #include "qplib_rcfw.h"
50 #include "qplib_sp.h"
51
52 const struct bnxt_qplib_gid bnxt_qplib_gid_zero = {{ 0, 0, 0, 0, 0, 0, 0, 0,
53 0, 0, 0, 0, 0, 0, 0, 0 } };
54
55 /* Device */
56
57 static void bnxt_qplib_query_version(struct bnxt_qplib_rcfw *rcfw,
58 char *fw_ver)
59 {
60 struct cmdq_query_version req;
61 struct creq_query_version_resp resp;
62 u16 cmd_flags = 0;
63 int rc = 0;
64
65 RCFW_CMD_PREP(req, QUERY_VERSION, cmd_flags);
66
67 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
68 (void *)&resp, NULL, 0);
69 if (rc)
70 return;
71 fw_ver[0] = resp.fw_maj;
72 fw_ver[1] = resp.fw_minor;
73 fw_ver[2] = resp.fw_bld;
74 fw_ver[3] = resp.fw_rsvd;
75 }
76
77 int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
78 struct bnxt_qplib_dev_attr *attr, bool vf)
79 {
80 struct cmdq_query_func req;
81 struct creq_query_func_resp resp;
82 struct bnxt_qplib_rcfw_sbuf *sbuf;
83 struct creq_query_func_resp_sb *sb;
84 u16 cmd_flags = 0;
85 u32 temp;
86 u8 *tqm_alloc;
87 int i, rc = 0;
88
89 RCFW_CMD_PREP(req, QUERY_FUNC, cmd_flags);
90
91 sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
92 if (!sbuf) {
93 dev_err(&rcfw->pdev->dev,
94 "SP: QUERY_FUNC alloc side buffer failed\n");
95 return -ENOMEM;
96 }
97
98 sb = sbuf->sb;
99 req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
100 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
101 (void *)sbuf, 0);
102 if (rc)
103 goto bail;
104
105 /* Extract the context from the side buffer */
106 attr->max_qp = le32_to_cpu(sb->max_qp);
107 /* max_qp value reported by FW for PF doesn't include the QP1 for PF */
108 if (!vf)
109 attr->max_qp += 1;
110 attr->max_qp_rd_atom =
111 sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
112 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom;
113 attr->max_qp_init_rd_atom =
114 sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
115 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom;
116 attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr);
117 /*
118 * 128 WQEs needs to be reserved for the HW (8916). Prevent
119 * reporting the max number
120 */
121 attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS;
122 attr->max_qp_sges = bnxt_qplib_is_chip_gen_p5(rcfw->res->cctx) ?
123 6 : sb->max_sge;
124 attr->max_cq = le32_to_cpu(sb->max_cq);
125 attr->max_cq_wqes = le32_to_cpu(sb->max_cqe);
126 attr->max_cq_sges = attr->max_qp_sges;
127 attr->max_mr = le32_to_cpu(sb->max_mr);
128 attr->max_mw = le32_to_cpu(sb->max_mw);
129
130 attr->max_mr_size = le64_to_cpu(sb->max_mr_size);
131 attr->max_pd = 64 * 1024;
132 attr->max_raw_ethy_qp = le32_to_cpu(sb->max_raw_eth_qp);
133 attr->max_ah = le32_to_cpu(sb->max_ah);
134
135 attr->max_fmr = le32_to_cpu(sb->max_fmr);
136 attr->max_map_per_fmr = sb->max_map_per_fmr;
137
138 attr->max_srq = le16_to_cpu(sb->max_srq);
139 attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1;
140 attr->max_srq_sges = sb->max_srq_sge;
141 attr->max_pkey = le32_to_cpu(sb->max_pkeys);
142 /*
143 * Some versions of FW reports more than 0xFFFF.
144 * Restrict it for now to 0xFFFF to avoid
145 * reporting trucated value
146 */
147 if (attr->max_pkey > 0xFFFF) {
148 /* ib_port_attr::pkey_tbl_len is u16 */
149 attr->max_pkey = 0xFFFF;
150 }
151
152 attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
153 attr->l2_db_size = (sb->l2_db_space_size + 1) *
154 (0x01 << RCFW_DBR_BASE_PAGE_SHIFT);
155 attr->max_sgid = le32_to_cpu(sb->max_gid);
156
157 bnxt_qplib_query_version(rcfw, attr->fw_ver);
158
159 for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) {
160 temp = le32_to_cpu(sb->tqm_alloc_reqs[i]);
161 tqm_alloc = (u8 *)&temp;
162 attr->tqm_alloc_reqs[i * 4] = *tqm_alloc;
163 attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc);
164 attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc);
165 attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
166 }
167
168 attr->is_atomic = false;
169 bail:
170 bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
171 return rc;
172 }
173
174 int bnxt_qplib_set_func_resources(struct bnxt_qplib_res *res,
175 struct bnxt_qplib_rcfw *rcfw,
176 struct bnxt_qplib_ctx *ctx)
177 {
178 struct cmdq_set_func_resources req;
179 struct creq_set_func_resources_resp resp;
180 u16 cmd_flags = 0;
181 int rc = 0;
182
183 RCFW_CMD_PREP(req, SET_FUNC_RESOURCES, cmd_flags);
184
185 req.number_of_qp = cpu_to_le32(ctx->qpc_count);
186 req.number_of_mrw = cpu_to_le32(ctx->mrw_count);
187 req.number_of_srq = cpu_to_le32(ctx->srqc_count);
188 req.number_of_cq = cpu_to_le32(ctx->cq_count);
189
190 req.max_qp_per_vf = cpu_to_le32(ctx->vf_res.max_qp_per_vf);
191 req.max_mrw_per_vf = cpu_to_le32(ctx->vf_res.max_mrw_per_vf);
192 req.max_srq_per_vf = cpu_to_le32(ctx->vf_res.max_srq_per_vf);
193 req.max_cq_per_vf = cpu_to_le32(ctx->vf_res.max_cq_per_vf);
194 req.max_gid_per_vf = cpu_to_le32(ctx->vf_res.max_gid_per_vf);
195
196 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
197 (void *)&resp,
198 NULL, 0);
199 if (rc) {
200 dev_err(&res->pdev->dev, "Failed to set function resources\n");
201 }
202 return rc;
203 }
204
205 /* SGID */
206 int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res,
207 struct bnxt_qplib_sgid_tbl *sgid_tbl, int index,
208 struct bnxt_qplib_gid *gid)
209 {
210 if (index >= sgid_tbl->max) {
211 dev_err(&res->pdev->dev,
212 "Index %d exceeded SGID table max (%d)\n",
213 index, sgid_tbl->max);
214 return -EINVAL;
215 }
216 memcpy(gid, &sgid_tbl->tbl[index].gid, sizeof(*gid));
217 return 0;
218 }
219
220 int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
221 struct bnxt_qplib_gid *gid, u16 vlan_id, bool update)
222 {
223 struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
224 struct bnxt_qplib_res,
225 sgid_tbl);
226 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
227 int index;
228
229 if (!sgid_tbl) {
230 dev_err(&res->pdev->dev, "SGID table not allocated\n");
231 return -EINVAL;
232 }
233 /* Do we need a sgid_lock here? */
234 if (!sgid_tbl->active) {
235 dev_err(&res->pdev->dev, "SGID table has no active entries\n");
236 return -ENOMEM;
237 }
238 for (index = 0; index < sgid_tbl->max; index++) {
239 if (!memcmp(&sgid_tbl->tbl[index].gid, gid, sizeof(*gid)) &&
240 vlan_id == sgid_tbl->tbl[index].vlan_id)
241 break;
242 }
243 if (index == sgid_tbl->max) {
244 dev_warn(&res->pdev->dev, "GID not found in the SGID table\n");
245 return 0;
246 }
247 /* Remove GID from the SGID table */
248 if (update) {
249 struct cmdq_delete_gid req;
250 struct creq_delete_gid_resp resp;
251 u16 cmd_flags = 0;
252 int rc;
253
254 RCFW_CMD_PREP(req, DELETE_GID, cmd_flags);
255 if (sgid_tbl->hw_id[index] == 0xFFFF) {
256 dev_err(&res->pdev->dev,
257 "GID entry contains an invalid HW id\n");
258 return -EINVAL;
259 }
260 req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]);
261 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
262 (void *)&resp, NULL, 0);
263 if (rc)
264 return rc;
265 }
266 memcpy(&sgid_tbl->tbl[index].gid, &bnxt_qplib_gid_zero,
267 sizeof(bnxt_qplib_gid_zero));
268 sgid_tbl->tbl[index].vlan_id = 0xFFFF;
269 sgid_tbl->vlan[index] = 0;
270 sgid_tbl->active--;
271 dev_dbg(&res->pdev->dev,
272 "SGID deleted hw_id[0x%x] = 0x%x active = 0x%x\n",
273 index, sgid_tbl->hw_id[index], sgid_tbl->active);
274 sgid_tbl->hw_id[index] = (u16)-1;
275
276 /* unlock */
277 return 0;
278 }
279
280 int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
281 struct bnxt_qplib_gid *gid, u8 *smac, u16 vlan_id,
282 bool update, u32 *index)
283 {
284 struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
285 struct bnxt_qplib_res,
286 sgid_tbl);
287 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
288 int i, free_idx;
289
290 if (!sgid_tbl) {
291 dev_err(&res->pdev->dev, "SGID table not allocated\n");
292 return -EINVAL;
293 }
294 /* Do we need a sgid_lock here? */
295 if (sgid_tbl->active == sgid_tbl->max) {
296 dev_err(&res->pdev->dev, "SGID table is full\n");
297 return -ENOMEM;
298 }
299 free_idx = sgid_tbl->max;
300 for (i = 0; i < sgid_tbl->max; i++) {
301 if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid)) &&
302 sgid_tbl->tbl[i].vlan_id == vlan_id) {
303 dev_dbg(&res->pdev->dev,
304 "SGID entry already exist in entry %d!\n", i);
305 *index = i;
306 return -EALREADY;
307 } else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero,
308 sizeof(bnxt_qplib_gid_zero)) &&
309 free_idx == sgid_tbl->max) {
310 free_idx = i;
311 }
312 }
313 if (free_idx == sgid_tbl->max) {
314 dev_err(&res->pdev->dev,
315 "SGID table is FULL but count is not MAX??\n");
316 return -ENOMEM;
317 }
318 if (update) {
319 struct cmdq_add_gid req;
320 struct creq_add_gid_resp resp;
321 u16 cmd_flags = 0;
322 int rc;
323
324 RCFW_CMD_PREP(req, ADD_GID, cmd_flags);
325
326 req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
327 req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
328 req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
329 req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
330 /*
331 * driver should ensure that all RoCE traffic is always VLAN
332 * tagged if RoCE traffic is running on non-zero VLAN ID or
333 * RoCE traffic is running on non-zero Priority.
334 */
335 if ((vlan_id != 0xFFFF) || res->prio) {
336 if (vlan_id != 0xFFFF)
337 req.vlan = cpu_to_le16
338 (vlan_id & CMDQ_ADD_GID_VLAN_VLAN_ID_MASK);
339 req.vlan |= cpu_to_le16
340 (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
341 CMDQ_ADD_GID_VLAN_VLAN_EN);
342 }
343
344 /* MAC in network format */
345 req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
346 req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
347 req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
348
349 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
350 (void *)&resp, NULL, 0);
351 if (rc)
352 return rc;
353 sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid);
354 }
355 /* Add GID to the sgid_tbl */
356 memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid));
357 sgid_tbl->tbl[free_idx].vlan_id = vlan_id;
358 sgid_tbl->active++;
359 if (vlan_id != 0xFFFF)
360 sgid_tbl->vlan[free_idx] = 1;
361
362 dev_dbg(&res->pdev->dev,
363 "SGID added hw_id[0x%x] = 0x%x active = 0x%x\n",
364 free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active);
365
366 *index = free_idx;
367 /* unlock */
368 return 0;
369 }
370
371 int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
372 struct bnxt_qplib_gid *gid, u16 gid_idx,
373 u8 *smac)
374 {
375 struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
376 struct bnxt_qplib_res,
377 sgid_tbl);
378 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
379 struct creq_modify_gid_resp resp;
380 struct cmdq_modify_gid req;
381 int rc;
382 u16 cmd_flags = 0;
383
384 RCFW_CMD_PREP(req, MODIFY_GID, cmd_flags);
385
386 req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
387 req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
388 req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
389 req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
390 if (res->prio) {
391 req.vlan |= cpu_to_le16
392 (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
393 CMDQ_ADD_GID_VLAN_VLAN_EN);
394 }
395
396 /* MAC in network format */
397 req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
398 req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
399 req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
400
401 req.gid_index = cpu_to_le16(gid_idx);
402
403 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
404 (void *)&resp, NULL, 0);
405 return rc;
406 }
407
408 /* pkeys */
409 int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res,
410 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index,
411 u16 *pkey)
412 {
413 if (index == 0xFFFF) {
414 *pkey = 0xFFFF;
415 return 0;
416 }
417 if (index >= pkey_tbl->max) {
418 dev_err(&res->pdev->dev,
419 "Index %d exceeded PKEY table max (%d)\n",
420 index, pkey_tbl->max);
421 return -EINVAL;
422 }
423 memcpy(pkey, &pkey_tbl->tbl[index], sizeof(*pkey));
424 return 0;
425 }
426
427 int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res,
428 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
429 bool update)
430 {
431 int i, rc = 0;
432
433 if (!pkey_tbl) {
434 dev_err(&res->pdev->dev, "PKEY table not allocated\n");
435 return -EINVAL;
436 }
437
438 /* Do we need a pkey_lock here? */
439 if (!pkey_tbl->active) {
440 dev_err(&res->pdev->dev, "PKEY table has no active entries\n");
441 return -ENOMEM;
442 }
443 for (i = 0; i < pkey_tbl->max; i++) {
444 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
445 break;
446 }
447 if (i == pkey_tbl->max) {
448 dev_err(&res->pdev->dev,
449 "PKEY 0x%04x not found in the pkey table\n", *pkey);
450 return -ENOMEM;
451 }
452 memset(&pkey_tbl->tbl[i], 0, sizeof(*pkey));
453 pkey_tbl->active--;
454
455 /* unlock */
456 return rc;
457 }
458
459 int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res,
460 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
461 bool update)
462 {
463 int i, free_idx, rc = 0;
464
465 if (!pkey_tbl) {
466 dev_err(&res->pdev->dev, "PKEY table not allocated\n");
467 return -EINVAL;
468 }
469
470 /* Do we need a pkey_lock here? */
471 if (pkey_tbl->active == pkey_tbl->max) {
472 dev_err(&res->pdev->dev, "PKEY table is full\n");
473 return -ENOMEM;
474 }
475 free_idx = pkey_tbl->max;
476 for (i = 0; i < pkey_tbl->max; i++) {
477 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
478 return -EALREADY;
479 else if (!pkey_tbl->tbl[i] && free_idx == pkey_tbl->max)
480 free_idx = i;
481 }
482 if (free_idx == pkey_tbl->max) {
483 dev_err(&res->pdev->dev,
484 "PKEY table is FULL but count is not MAX??\n");
485 return -ENOMEM;
486 }
487 /* Add PKEY to the pkey_tbl */
488 memcpy(&pkey_tbl->tbl[free_idx], pkey, sizeof(*pkey));
489 pkey_tbl->active++;
490
491 /* unlock */
492 return rc;
493 }
494
495 /* AH */
496 int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
497 bool block)
498 {
499 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
500 struct cmdq_create_ah req;
501 struct creq_create_ah_resp resp;
502 u16 cmd_flags = 0;
503 u32 temp32[4];
504 u16 temp16[3];
505 int rc;
506
507 RCFW_CMD_PREP(req, CREATE_AH, cmd_flags);
508
509 memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid));
510 req.dgid[0] = cpu_to_le32(temp32[0]);
511 req.dgid[1] = cpu_to_le32(temp32[1]);
512 req.dgid[2] = cpu_to_le32(temp32[2]);
513 req.dgid[3] = cpu_to_le32(temp32[3]);
514
515 req.type = ah->nw_type;
516 req.hop_limit = ah->hop_limit;
517 req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]);
518 req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label &
519 CMDQ_CREATE_AH_FLOW_LABEL_MASK) |
520 CMDQ_CREATE_AH_DEST_VLAN_ID_MASK);
521 req.pd_id = cpu_to_le32(ah->pd->id);
522 req.traffic_class = ah->traffic_class;
523
524 /* MAC in network format */
525 memcpy(temp16, ah->dmac, 6);
526 req.dest_mac[0] = cpu_to_le16(temp16[0]);
527 req.dest_mac[1] = cpu_to_le16(temp16[1]);
528 req.dest_mac[2] = cpu_to_le16(temp16[2]);
529
530 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
531 NULL, block);
532 if (rc)
533 return rc;
534
535 ah->id = le32_to_cpu(resp.xid);
536 return 0;
537 }
538
539 void bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
540 bool block)
541 {
542 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
543 struct cmdq_destroy_ah req;
544 struct creq_destroy_ah_resp resp;
545 u16 cmd_flags = 0;
546
547 /* Clean up the AH table in the device */
548 RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags);
549
550 req.ah_cid = cpu_to_le32(ah->id);
551
552 bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, NULL,
553 block);
554 }
555
556 /* MRW */
557 int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
558 {
559 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
560 struct cmdq_deallocate_key req;
561 struct creq_deallocate_key_resp resp;
562 u16 cmd_flags = 0;
563 int rc;
564
565 if (mrw->lkey == 0xFFFFFFFF) {
566 dev_info(&res->pdev->dev, "SP: Free a reserved lkey MRW\n");
567 return 0;
568 }
569
570 RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags);
571
572 req.mrw_flags = mrw->type;
573
574 if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1) ||
575 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
576 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
577 req.key = cpu_to_le32(mrw->rkey);
578 else
579 req.key = cpu_to_le32(mrw->lkey);
580
581 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
582 NULL, 0);
583 if (rc)
584 return rc;
585
586 /* Free the qplib's MRW memory */
587 if (mrw->hwq.max_elements)
588 bnxt_qplib_free_hwq(res->pdev, &mrw->hwq);
589
590 return 0;
591 }
592
593 int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
594 {
595 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
596 struct cmdq_allocate_mrw req;
597 struct creq_allocate_mrw_resp resp;
598 u16 cmd_flags = 0;
599 unsigned long tmp;
600 int rc;
601
602 RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags);
603
604 req.pd_id = cpu_to_le32(mrw->pd->id);
605 req.mrw_flags = mrw->type;
606 if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR &&
607 mrw->flags & BNXT_QPLIB_FR_PMR) ||
608 mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A ||
609 mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)
610 req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY;
611 tmp = (unsigned long)mrw;
612 req.mrw_handle = cpu_to_le64(tmp);
613
614 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
615 (void *)&resp, NULL, 0);
616 if (rc)
617 return rc;
618
619 if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1) ||
620 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
621 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
622 mrw->rkey = le32_to_cpu(resp.xid);
623 else
624 mrw->lkey = le32_to_cpu(resp.xid);
625 return 0;
626 }
627
628 int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw,
629 bool block)
630 {
631 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
632 struct cmdq_deregister_mr req;
633 struct creq_deregister_mr_resp resp;
634 u16 cmd_flags = 0;
635 int rc;
636
637 RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags);
638
639 req.lkey = cpu_to_le32(mrw->lkey);
640 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
641 (void *)&resp, NULL, block);
642 if (rc)
643 return rc;
644
645 /* Free the qplib's MR memory */
646 if (mrw->hwq.max_elements) {
647 mrw->va = 0;
648 mrw->total_size = 0;
649 bnxt_qplib_free_hwq(res->pdev, &mrw->hwq);
650 }
651
652 return 0;
653 }
654
655 int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
656 u64 *pbl_tbl, int num_pbls, bool block, u32 buf_pg_size)
657 {
658 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
659 struct cmdq_register_mr req;
660 struct creq_register_mr_resp resp;
661 u16 cmd_flags = 0, level;
662 int pg_ptrs, pages, i, rc;
663 dma_addr_t **pbl_ptr;
664 u32 pg_size;
665
666 if (num_pbls) {
667 /* Allocate memory for the non-leaf pages to store buf ptrs.
668 * Non-leaf pages always uses system PAGE_SIZE
669 */
670 pg_ptrs = roundup_pow_of_two(num_pbls);
671 pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
672 if (!pages)
673 pages++;
674
675 if (pages > MAX_PBL_LVL_1_PGS) {
676 dev_err(&res->pdev->dev,
677 "SP: Reg MR pages requested (0x%x) exceeded max (0x%x)\n",
678 pages, MAX_PBL_LVL_1_PGS);
679 return -ENOMEM;
680 }
681 /* Free the hwq if it already exist, must be a rereg */
682 if (mr->hwq.max_elements)
683 bnxt_qplib_free_hwq(res->pdev, &mr->hwq);
684
685 mr->hwq.max_elements = pages;
686 /* Use system PAGE_SIZE */
687 rc = bnxt_qplib_alloc_init_hwq(res->pdev, &mr->hwq, NULL,
688 &mr->hwq.max_elements,
689 PAGE_SIZE, 0, PAGE_SIZE,
690 HWQ_TYPE_CTX);
691 if (rc) {
692 dev_err(&res->pdev->dev,
693 "SP: Reg MR memory allocation failed\n");
694 return -ENOMEM;
695 }
696 /* Write to the hwq */
697 pbl_ptr = (dma_addr_t **)mr->hwq.pbl_ptr;
698 for (i = 0; i < num_pbls; i++)
699 pbl_ptr[PTR_PG(i)][PTR_IDX(i)] =
700 (pbl_tbl[i] & PAGE_MASK) | PTU_PTE_VALID;
701 }
702
703 RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags);
704
705 /* Configure the request */
706 if (mr->hwq.level == PBL_LVL_MAX) {
707 /* No PBL provided, just use system PAGE_SIZE */
708 level = 0;
709 req.pbl = 0;
710 pg_size = PAGE_SIZE;
711 } else {
712 level = mr->hwq.level + 1;
713 req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]);
714 }
715 pg_size = buf_pg_size ? buf_pg_size : PAGE_SIZE;
716 req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) |
717 ((ilog2(pg_size) <<
718 CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) &
719 CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK);
720 req.log2_pbl_pg_size = cpu_to_le16(((ilog2(PAGE_SIZE) <<
721 CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_SFT) &
722 CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_MASK));
723 req.access = (mr->flags & 0xFFFF);
724 req.va = cpu_to_le64(mr->va);
725 req.key = cpu_to_le32(mr->lkey);
726 req.mr_size = cpu_to_le64(mr->total_size);
727
728 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
729 (void *)&resp, NULL, block);
730 if (rc)
731 goto fail;
732
733 return 0;
734
735 fail:
736 if (mr->hwq.max_elements)
737 bnxt_qplib_free_hwq(res->pdev, &mr->hwq);
738 return rc;
739 }
740
741 int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res,
742 struct bnxt_qplib_frpl *frpl,
743 int max_pg_ptrs)
744 {
745 int pg_ptrs, pages, rc;
746
747 /* Re-calculate the max to fit the HWQ allocation model */
748 pg_ptrs = roundup_pow_of_two(max_pg_ptrs);
749 pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
750 if (!pages)
751 pages++;
752
753 if (pages > MAX_PBL_LVL_1_PGS)
754 return -ENOMEM;
755
756 frpl->hwq.max_elements = pages;
757 rc = bnxt_qplib_alloc_init_hwq(res->pdev, &frpl->hwq, NULL,
758 &frpl->hwq.max_elements, PAGE_SIZE, 0,
759 PAGE_SIZE, HWQ_TYPE_CTX);
760 if (!rc)
761 frpl->max_pg_ptrs = pg_ptrs;
762
763 return rc;
764 }
765
766 int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res,
767 struct bnxt_qplib_frpl *frpl)
768 {
769 bnxt_qplib_free_hwq(res->pdev, &frpl->hwq);
770 return 0;
771 }
772
773 int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids)
774 {
775 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
776 struct cmdq_map_tc_to_cos req;
777 struct creq_map_tc_to_cos_resp resp;
778 u16 cmd_flags = 0;
779
780 RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags);
781 req.cos0 = cpu_to_le16(cids[0]);
782 req.cos1 = cpu_to_le16(cids[1]);
783
784 return bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
785 NULL, 0);
786 }
787
788 int bnxt_qplib_get_roce_stats(struct bnxt_qplib_rcfw *rcfw,
789 struct bnxt_qplib_roce_stats *stats)
790 {
791 struct cmdq_query_roce_stats req;
792 struct creq_query_roce_stats_resp resp;
793 struct bnxt_qplib_rcfw_sbuf *sbuf;
794 struct creq_query_roce_stats_resp_sb *sb;
795 u16 cmd_flags = 0;
796 int rc = 0;
797
798 RCFW_CMD_PREP(req, QUERY_ROCE_STATS, cmd_flags);
799
800 sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
801 if (!sbuf) {
802 dev_err(&rcfw->pdev->dev,
803 "SP: QUERY_ROCE_STATS alloc side buffer failed\n");
804 return -ENOMEM;
805 }
806
807 sb = sbuf->sb;
808 req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
809 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
810 (void *)sbuf, 0);
811 if (rc)
812 goto bail;
813 /* Extract the context from the side buffer */
814 stats->to_retransmits = le64_to_cpu(sb->to_retransmits);
815 stats->seq_err_naks_rcvd = le64_to_cpu(sb->seq_err_naks_rcvd);
816 stats->max_retry_exceeded = le64_to_cpu(sb->max_retry_exceeded);
817 stats->rnr_naks_rcvd = le64_to_cpu(sb->rnr_naks_rcvd);
818 stats->missing_resp = le64_to_cpu(sb->missing_resp);
819 stats->unrecoverable_err = le64_to_cpu(sb->unrecoverable_err);
820 stats->bad_resp_err = le64_to_cpu(sb->bad_resp_err);
821 stats->local_qp_op_err = le64_to_cpu(sb->local_qp_op_err);
822 stats->local_protection_err = le64_to_cpu(sb->local_protection_err);
823 stats->mem_mgmt_op_err = le64_to_cpu(sb->mem_mgmt_op_err);
824 stats->remote_invalid_req_err = le64_to_cpu(sb->remote_invalid_req_err);
825 stats->remote_access_err = le64_to_cpu(sb->remote_access_err);
826 stats->remote_op_err = le64_to_cpu(sb->remote_op_err);
827 stats->dup_req = le64_to_cpu(sb->dup_req);
828 stats->res_exceed_max = le64_to_cpu(sb->res_exceed_max);
829 stats->res_length_mismatch = le64_to_cpu(sb->res_length_mismatch);
830 stats->res_exceeds_wqe = le64_to_cpu(sb->res_exceeds_wqe);
831 stats->res_opcode_err = le64_to_cpu(sb->res_opcode_err);
832 stats->res_rx_invalid_rkey = le64_to_cpu(sb->res_rx_invalid_rkey);
833 stats->res_rx_domain_err = le64_to_cpu(sb->res_rx_domain_err);
834 stats->res_rx_no_perm = le64_to_cpu(sb->res_rx_no_perm);
835 stats->res_rx_range_err = le64_to_cpu(sb->res_rx_range_err);
836 stats->res_tx_invalid_rkey = le64_to_cpu(sb->res_tx_invalid_rkey);
837 stats->res_tx_domain_err = le64_to_cpu(sb->res_tx_domain_err);
838 stats->res_tx_no_perm = le64_to_cpu(sb->res_tx_no_perm);
839 stats->res_tx_range_err = le64_to_cpu(sb->res_tx_range_err);
840 stats->res_irrq_oflow = le64_to_cpu(sb->res_irrq_oflow);
841 stats->res_unsup_opcode = le64_to_cpu(sb->res_unsup_opcode);
842 stats->res_unaligned_atomic = le64_to_cpu(sb->res_unaligned_atomic);
843 stats->res_rem_inv_err = le64_to_cpu(sb->res_rem_inv_err);
844 stats->res_mem_error = le64_to_cpu(sb->res_mem_error);
845 stats->res_srq_err = le64_to_cpu(sb->res_srq_err);
846 stats->res_cmp_err = le64_to_cpu(sb->res_cmp_err);
847 stats->res_invalid_dup_rkey = le64_to_cpu(sb->res_invalid_dup_rkey);
848 stats->res_wqe_format_err = le64_to_cpu(sb->res_wqe_format_err);
849 stats->res_cq_load_err = le64_to_cpu(sb->res_cq_load_err);
850 stats->res_srq_load_err = le64_to_cpu(sb->res_srq_load_err);
851 stats->res_tx_pci_err = le64_to_cpu(sb->res_tx_pci_err);
852 stats->res_rx_pci_err = le64_to_cpu(sb->res_rx_pci_err);
853 if (!rcfw->init_oos_stats) {
854 rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
855 rcfw->init_oos_stats = 1;
856 } else {
857 stats->res_oos_drop_count +=
858 (le64_to_cpu(sb->res_oos_drop_count) -
859 rcfw->oos_prev) & BNXT_QPLIB_OOS_COUNT_MASK;
860 rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
861 }
862
863 bail:
864 bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
865 return rc;
866 }
Linux with added FPC-III support