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
bnxt_qplib_is_atomic_cap(struct bnxt_qplib_rcfw * rcfw)57 static bool bnxt_qplib_is_atomic_cap(struct bnxt_qplib_rcfw *rcfw)
58 {
59 u16 pcie_ctl2 = 0;
60
61 if (!bnxt_qplib_is_chip_gen_p5(rcfw->res->cctx))
62 return false;
63
64 pcie_capability_read_word(rcfw->pdev, PCI_EXP_DEVCTL2, &pcie_ctl2);
65 return (pcie_ctl2 & PCI_EXP_DEVCTL2_ATOMIC_REQ);
66 }
67
bnxt_qplib_query_version(struct bnxt_qplib_rcfw * rcfw,char * fw_ver)68 static void bnxt_qplib_query_version(struct bnxt_qplib_rcfw *rcfw,
69 char *fw_ver)
70 {
71 struct cmdq_query_version req;
72 struct creq_query_version_resp resp;
73 u16 cmd_flags = 0;
74 int rc = 0;
75
76 RCFW_CMD_PREP(req, QUERY_VERSION, cmd_flags);
77
78 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
79 (void *)&resp, NULL, 0);
80 if (rc)
81 return;
82 fw_ver[0] = resp.fw_maj;
83 fw_ver[1] = resp.fw_minor;
84 fw_ver[2] = resp.fw_bld;
85 fw_ver[3] = resp.fw_rsvd;
86 }
87
bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw * rcfw,struct bnxt_qplib_dev_attr * attr,bool vf)88 int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
89 struct bnxt_qplib_dev_attr *attr, bool vf)
90 {
91 struct cmdq_query_func req;
92 struct creq_query_func_resp resp;
93 struct bnxt_qplib_rcfw_sbuf *sbuf;
94 struct creq_query_func_resp_sb *sb;
95 u16 cmd_flags = 0;
96 u32 temp;
97 u8 *tqm_alloc;
98 int i, rc = 0;
99
100 RCFW_CMD_PREP(req, QUERY_FUNC, cmd_flags);
101
102 sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
103 if (!sbuf) {
104 dev_err(&rcfw->pdev->dev,
105 "SP: QUERY_FUNC alloc side buffer failed\n");
106 return -ENOMEM;
107 }
108
109 sb = sbuf->sb;
110 req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
111 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
112 (void *)sbuf, 0);
113 if (rc)
114 goto bail;
115
116 /* Extract the context from the side buffer */
117 attr->max_qp = le32_to_cpu(sb->max_qp);
118 /* max_qp value reported by FW for PF doesn't include the QP1 for PF */
119 if (!vf)
120 attr->max_qp += 1;
121 attr->max_qp_rd_atom =
122 sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
123 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom;
124 attr->max_qp_init_rd_atom =
125 sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
126 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom;
127 attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr);
128 /*
129 * 128 WQEs needs to be reserved for the HW (8916). Prevent
130 * reporting the max number
131 */
132 attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS + 1;
133 attr->max_qp_sges = bnxt_qplib_is_chip_gen_p5(rcfw->res->cctx) ?
134 6 : sb->max_sge;
135 attr->max_cq = le32_to_cpu(sb->max_cq);
136 attr->max_cq_wqes = le32_to_cpu(sb->max_cqe);
137 attr->max_cq_sges = attr->max_qp_sges;
138 attr->max_mr = le32_to_cpu(sb->max_mr);
139 attr->max_mw = le32_to_cpu(sb->max_mw);
140
141 attr->max_mr_size = le64_to_cpu(sb->max_mr_size);
142 attr->max_pd = 64 * 1024;
143 attr->max_raw_ethy_qp = le32_to_cpu(sb->max_raw_eth_qp);
144 attr->max_ah = le32_to_cpu(sb->max_ah);
145
146 attr->max_srq = le16_to_cpu(sb->max_srq);
147 attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1;
148 attr->max_srq_sges = sb->max_srq_sge;
149 attr->max_pkey = le32_to_cpu(sb->max_pkeys);
150 /*
151 * Some versions of FW reports more than 0xFFFF.
152 * Restrict it for now to 0xFFFF to avoid
153 * reporting trucated value
154 */
155 if (attr->max_pkey > 0xFFFF) {
156 /* ib_port_attr::pkey_tbl_len is u16 */
157 attr->max_pkey = 0xFFFF;
158 }
159
160 attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
161 attr->l2_db_size = (sb->l2_db_space_size + 1) *
162 (0x01 << RCFW_DBR_BASE_PAGE_SHIFT);
163 attr->max_sgid = BNXT_QPLIB_NUM_GIDS_SUPPORTED;
164 attr->dev_cap_flags = le16_to_cpu(sb->dev_cap_flags);
165
166 bnxt_qplib_query_version(rcfw, attr->fw_ver);
167
168 for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) {
169 temp = le32_to_cpu(sb->tqm_alloc_reqs[i]);
170 tqm_alloc = (u8 *)&temp;
171 attr->tqm_alloc_reqs[i * 4] = *tqm_alloc;
172 attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc);
173 attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc);
174 attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
175 }
176
177 attr->is_atomic = bnxt_qplib_is_atomic_cap(rcfw);
178 bail:
179 bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
180 return rc;
181 }
182
bnxt_qplib_set_func_resources(struct bnxt_qplib_res * res,struct bnxt_qplib_rcfw * rcfw,struct bnxt_qplib_ctx * ctx)183 int bnxt_qplib_set_func_resources(struct bnxt_qplib_res *res,
184 struct bnxt_qplib_rcfw *rcfw,
185 struct bnxt_qplib_ctx *ctx)
186 {
187 struct cmdq_set_func_resources req;
188 struct creq_set_func_resources_resp resp;
189 u16 cmd_flags = 0;
190 int rc = 0;
191
192 RCFW_CMD_PREP(req, SET_FUNC_RESOURCES, cmd_flags);
193
194 req.number_of_qp = cpu_to_le32(ctx->qpc_count);
195 req.number_of_mrw = cpu_to_le32(ctx->mrw_count);
196 req.number_of_srq = cpu_to_le32(ctx->srqc_count);
197 req.number_of_cq = cpu_to_le32(ctx->cq_count);
198
199 req.max_qp_per_vf = cpu_to_le32(ctx->vf_res.max_qp_per_vf);
200 req.max_mrw_per_vf = cpu_to_le32(ctx->vf_res.max_mrw_per_vf);
201 req.max_srq_per_vf = cpu_to_le32(ctx->vf_res.max_srq_per_vf);
202 req.max_cq_per_vf = cpu_to_le32(ctx->vf_res.max_cq_per_vf);
203 req.max_gid_per_vf = cpu_to_le32(ctx->vf_res.max_gid_per_vf);
204
205 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
206 (void *)&resp,
207 NULL, 0);
208 if (rc) {
209 dev_err(&res->pdev->dev, "Failed to set function resources\n");
210 }
211 return rc;
212 }
213
214 /* SGID */
bnxt_qplib_get_sgid(struct bnxt_qplib_res * res,struct bnxt_qplib_sgid_tbl * sgid_tbl,int index,struct bnxt_qplib_gid * gid)215 int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res,
216 struct bnxt_qplib_sgid_tbl *sgid_tbl, int index,
217 struct bnxt_qplib_gid *gid)
218 {
219 if (index >= sgid_tbl->max) {
220 dev_err(&res->pdev->dev,
221 "Index %d exceeded SGID table max (%d)\n",
222 index, sgid_tbl->max);
223 return -EINVAL;
224 }
225 memcpy(gid, &sgid_tbl->tbl[index].gid, sizeof(*gid));
226 return 0;
227 }
228
bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl * sgid_tbl,struct bnxt_qplib_gid * gid,u16 vlan_id,bool update)229 int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
230 struct bnxt_qplib_gid *gid, u16 vlan_id, bool update)
231 {
232 struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
233 struct bnxt_qplib_res,
234 sgid_tbl);
235 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
236 int index;
237
238 if (!sgid_tbl) {
239 dev_err(&res->pdev->dev, "SGID table not allocated\n");
240 return -EINVAL;
241 }
242 /* Do we need a sgid_lock here? */
243 if (!sgid_tbl->active) {
244 dev_err(&res->pdev->dev, "SGID table has no active entries\n");
245 return -ENOMEM;
246 }
247 for (index = 0; index < sgid_tbl->max; index++) {
248 if (!memcmp(&sgid_tbl->tbl[index].gid, gid, sizeof(*gid)) &&
249 vlan_id == sgid_tbl->tbl[index].vlan_id)
250 break;
251 }
252 if (index == sgid_tbl->max) {
253 dev_warn(&res->pdev->dev, "GID not found in the SGID table\n");
254 return 0;
255 }
256 /* Remove GID from the SGID table */
257 if (update) {
258 struct cmdq_delete_gid req;
259 struct creq_delete_gid_resp resp;
260 u16 cmd_flags = 0;
261 int rc;
262
263 RCFW_CMD_PREP(req, DELETE_GID, cmd_flags);
264 if (sgid_tbl->hw_id[index] == 0xFFFF) {
265 dev_err(&res->pdev->dev,
266 "GID entry contains an invalid HW id\n");
267 return -EINVAL;
268 }
269 req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]);
270 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
271 (void *)&resp, NULL, 0);
272 if (rc)
273 return rc;
274 }
275 memcpy(&sgid_tbl->tbl[index].gid, &bnxt_qplib_gid_zero,
276 sizeof(bnxt_qplib_gid_zero));
277 sgid_tbl->tbl[index].vlan_id = 0xFFFF;
278 sgid_tbl->vlan[index] = 0;
279 sgid_tbl->active--;
280 dev_dbg(&res->pdev->dev,
281 "SGID deleted hw_id[0x%x] = 0x%x active = 0x%x\n",
282 index, sgid_tbl->hw_id[index], sgid_tbl->active);
283 sgid_tbl->hw_id[index] = (u16)-1;
284
285 /* unlock */
286 return 0;
287 }
288
bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl * sgid_tbl,struct bnxt_qplib_gid * gid,const u8 * smac,u16 vlan_id,bool update,u32 * index)289 int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
290 struct bnxt_qplib_gid *gid, const u8 *smac,
291 u16 vlan_id, bool update, u32 *index)
292 {
293 struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
294 struct bnxt_qplib_res,
295 sgid_tbl);
296 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
297 int i, free_idx;
298
299 if (!sgid_tbl) {
300 dev_err(&res->pdev->dev, "SGID table not allocated\n");
301 return -EINVAL;
302 }
303 /* Do we need a sgid_lock here? */
304 if (sgid_tbl->active == sgid_tbl->max) {
305 dev_err(&res->pdev->dev, "SGID table is full\n");
306 return -ENOMEM;
307 }
308 free_idx = sgid_tbl->max;
309 for (i = 0; i < sgid_tbl->max; i++) {
310 if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid)) &&
311 sgid_tbl->tbl[i].vlan_id == vlan_id) {
312 dev_dbg(&res->pdev->dev,
313 "SGID entry already exist in entry %d!\n", i);
314 *index = i;
315 return -EALREADY;
316 } else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero,
317 sizeof(bnxt_qplib_gid_zero)) &&
318 free_idx == sgid_tbl->max) {
319 free_idx = i;
320 }
321 }
322 if (free_idx == sgid_tbl->max) {
323 dev_err(&res->pdev->dev,
324 "SGID table is FULL but count is not MAX??\n");
325 return -ENOMEM;
326 }
327 if (update) {
328 struct cmdq_add_gid req;
329 struct creq_add_gid_resp resp;
330 u16 cmd_flags = 0;
331 int rc;
332
333 RCFW_CMD_PREP(req, ADD_GID, cmd_flags);
334
335 req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
336 req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
337 req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
338 req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
339 /*
340 * driver should ensure that all RoCE traffic is always VLAN
341 * tagged if RoCE traffic is running on non-zero VLAN ID or
342 * RoCE traffic is running on non-zero Priority.
343 */
344 if ((vlan_id != 0xFFFF) || res->prio) {
345 if (vlan_id != 0xFFFF)
346 req.vlan = cpu_to_le16
347 (vlan_id & CMDQ_ADD_GID_VLAN_VLAN_ID_MASK);
348 req.vlan |= cpu_to_le16
349 (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
350 CMDQ_ADD_GID_VLAN_VLAN_EN);
351 }
352
353 /* MAC in network format */
354 req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
355 req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
356 req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
357
358 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
359 (void *)&resp, NULL, 0);
360 if (rc)
361 return rc;
362 sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid);
363 }
364 /* Add GID to the sgid_tbl */
365 memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid));
366 sgid_tbl->tbl[free_idx].vlan_id = vlan_id;
367 sgid_tbl->active++;
368 if (vlan_id != 0xFFFF)
369 sgid_tbl->vlan[free_idx] = 1;
370
371 dev_dbg(&res->pdev->dev,
372 "SGID added hw_id[0x%x] = 0x%x active = 0x%x\n",
373 free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active);
374
375 *index = free_idx;
376 /* unlock */
377 return 0;
378 }
379
bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl * sgid_tbl,struct bnxt_qplib_gid * gid,u16 gid_idx,const u8 * smac)380 int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
381 struct bnxt_qplib_gid *gid, u16 gid_idx,
382 const u8 *smac)
383 {
384 struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
385 struct bnxt_qplib_res,
386 sgid_tbl);
387 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
388 struct creq_modify_gid_resp resp;
389 struct cmdq_modify_gid req;
390 int rc;
391 u16 cmd_flags = 0;
392
393 RCFW_CMD_PREP(req, MODIFY_GID, cmd_flags);
394
395 req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
396 req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
397 req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
398 req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
399 if (res->prio) {
400 req.vlan |= cpu_to_le16
401 (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
402 CMDQ_ADD_GID_VLAN_VLAN_EN);
403 }
404
405 /* MAC in network format */
406 req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
407 req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
408 req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
409
410 req.gid_index = cpu_to_le16(gid_idx);
411
412 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
413 (void *)&resp, NULL, 0);
414 return rc;
415 }
416
417 /* pkeys */
bnxt_qplib_get_pkey(struct bnxt_qplib_res * res,struct bnxt_qplib_pkey_tbl * pkey_tbl,u16 index,u16 * pkey)418 int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res,
419 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index,
420 u16 *pkey)
421 {
422 if (index == 0xFFFF) {
423 *pkey = 0xFFFF;
424 return 0;
425 }
426 if (index >= pkey_tbl->max) {
427 dev_err(&res->pdev->dev,
428 "Index %d exceeded PKEY table max (%d)\n",
429 index, pkey_tbl->max);
430 return -EINVAL;
431 }
432 memcpy(pkey, &pkey_tbl->tbl[index], sizeof(*pkey));
433 return 0;
434 }
435
bnxt_qplib_del_pkey(struct bnxt_qplib_res * res,struct bnxt_qplib_pkey_tbl * pkey_tbl,u16 * pkey,bool update)436 int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res,
437 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
438 bool update)
439 {
440 int i, rc = 0;
441
442 if (!pkey_tbl) {
443 dev_err(&res->pdev->dev, "PKEY table not allocated\n");
444 return -EINVAL;
445 }
446
447 /* Do we need a pkey_lock here? */
448 if (!pkey_tbl->active) {
449 dev_err(&res->pdev->dev, "PKEY table has no active entries\n");
450 return -ENOMEM;
451 }
452 for (i = 0; i < pkey_tbl->max; i++) {
453 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
454 break;
455 }
456 if (i == pkey_tbl->max) {
457 dev_err(&res->pdev->dev,
458 "PKEY 0x%04x not found in the pkey table\n", *pkey);
459 return -ENOMEM;
460 }
461 memset(&pkey_tbl->tbl[i], 0, sizeof(*pkey));
462 pkey_tbl->active--;
463
464 /* unlock */
465 return rc;
466 }
467
bnxt_qplib_add_pkey(struct bnxt_qplib_res * res,struct bnxt_qplib_pkey_tbl * pkey_tbl,u16 * pkey,bool update)468 int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res,
469 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
470 bool update)
471 {
472 int i, free_idx, rc = 0;
473
474 if (!pkey_tbl) {
475 dev_err(&res->pdev->dev, "PKEY table not allocated\n");
476 return -EINVAL;
477 }
478
479 /* Do we need a pkey_lock here? */
480 if (pkey_tbl->active == pkey_tbl->max) {
481 dev_err(&res->pdev->dev, "PKEY table is full\n");
482 return -ENOMEM;
483 }
484 free_idx = pkey_tbl->max;
485 for (i = 0; i < pkey_tbl->max; i++) {
486 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
487 return -EALREADY;
488 else if (!pkey_tbl->tbl[i] && free_idx == pkey_tbl->max)
489 free_idx = i;
490 }
491 if (free_idx == pkey_tbl->max) {
492 dev_err(&res->pdev->dev,
493 "PKEY table is FULL but count is not MAX??\n");
494 return -ENOMEM;
495 }
496 /* Add PKEY to the pkey_tbl */
497 memcpy(&pkey_tbl->tbl[free_idx], pkey, sizeof(*pkey));
498 pkey_tbl->active++;
499
500 /* unlock */
501 return rc;
502 }
503
504 /* AH */
bnxt_qplib_create_ah(struct bnxt_qplib_res * res,struct bnxt_qplib_ah * ah,bool block)505 int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
506 bool block)
507 {
508 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
509 struct cmdq_create_ah req;
510 struct creq_create_ah_resp resp;
511 u16 cmd_flags = 0;
512 u32 temp32[4];
513 u16 temp16[3];
514 int rc;
515
516 RCFW_CMD_PREP(req, CREATE_AH, cmd_flags);
517
518 memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid));
519 req.dgid[0] = cpu_to_le32(temp32[0]);
520 req.dgid[1] = cpu_to_le32(temp32[1]);
521 req.dgid[2] = cpu_to_le32(temp32[2]);
522 req.dgid[3] = cpu_to_le32(temp32[3]);
523
524 req.type = ah->nw_type;
525 req.hop_limit = ah->hop_limit;
526 req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]);
527 req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label &
528 CMDQ_CREATE_AH_FLOW_LABEL_MASK) |
529 CMDQ_CREATE_AH_DEST_VLAN_ID_MASK);
530 req.pd_id = cpu_to_le32(ah->pd->id);
531 req.traffic_class = ah->traffic_class;
532
533 /* MAC in network format */
534 memcpy(temp16, ah->dmac, 6);
535 req.dest_mac[0] = cpu_to_le16(temp16[0]);
536 req.dest_mac[1] = cpu_to_le16(temp16[1]);
537 req.dest_mac[2] = cpu_to_le16(temp16[2]);
538
539 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
540 NULL, block);
541 if (rc)
542 return rc;
543
544 ah->id = le32_to_cpu(resp.xid);
545 return 0;
546 }
547
bnxt_qplib_destroy_ah(struct bnxt_qplib_res * res,struct bnxt_qplib_ah * ah,bool block)548 void bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
549 bool block)
550 {
551 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
552 struct cmdq_destroy_ah req;
553 struct creq_destroy_ah_resp resp;
554 u16 cmd_flags = 0;
555
556 /* Clean up the AH table in the device */
557 RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags);
558
559 req.ah_cid = cpu_to_le32(ah->id);
560
561 bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, NULL,
562 block);
563 }
564
565 /* MRW */
bnxt_qplib_free_mrw(struct bnxt_qplib_res * res,struct bnxt_qplib_mrw * mrw)566 int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
567 {
568 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
569 struct cmdq_deallocate_key req;
570 struct creq_deallocate_key_resp resp;
571 u16 cmd_flags = 0;
572 int rc;
573
574 if (mrw->lkey == 0xFFFFFFFF) {
575 dev_info(&res->pdev->dev, "SP: Free a reserved lkey MRW\n");
576 return 0;
577 }
578
579 RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags);
580
581 req.mrw_flags = mrw->type;
582
583 if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1) ||
584 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
585 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
586 req.key = cpu_to_le32(mrw->rkey);
587 else
588 req.key = cpu_to_le32(mrw->lkey);
589
590 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
591 NULL, 0);
592 if (rc)
593 return rc;
594
595 /* Free the qplib's MRW memory */
596 if (mrw->hwq.max_elements)
597 bnxt_qplib_free_hwq(res, &mrw->hwq);
598
599 return 0;
600 }
601
bnxt_qplib_alloc_mrw(struct bnxt_qplib_res * res,struct bnxt_qplib_mrw * mrw)602 int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
603 {
604 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
605 struct cmdq_allocate_mrw req;
606 struct creq_allocate_mrw_resp resp;
607 u16 cmd_flags = 0;
608 unsigned long tmp;
609 int rc;
610
611 RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags);
612
613 req.pd_id = cpu_to_le32(mrw->pd->id);
614 req.mrw_flags = mrw->type;
615 if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR &&
616 mrw->flags & BNXT_QPLIB_FR_PMR) ||
617 mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A ||
618 mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)
619 req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY;
620 tmp = (unsigned long)mrw;
621 req.mrw_handle = cpu_to_le64(tmp);
622
623 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
624 (void *)&resp, NULL, 0);
625 if (rc)
626 return rc;
627
628 if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1) ||
629 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
630 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
631 mrw->rkey = le32_to_cpu(resp.xid);
632 else
633 mrw->lkey = le32_to_cpu(resp.xid);
634 return 0;
635 }
636
bnxt_qplib_dereg_mrw(struct bnxt_qplib_res * res,struct bnxt_qplib_mrw * mrw,bool block)637 int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw,
638 bool block)
639 {
640 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
641 struct cmdq_deregister_mr req;
642 struct creq_deregister_mr_resp resp;
643 u16 cmd_flags = 0;
644 int rc;
645
646 RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags);
647
648 req.lkey = cpu_to_le32(mrw->lkey);
649 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
650 (void *)&resp, NULL, block);
651 if (rc)
652 return rc;
653
654 /* Free the qplib's MR memory */
655 if (mrw->hwq.max_elements) {
656 mrw->va = 0;
657 mrw->total_size = 0;
658 bnxt_qplib_free_hwq(res, &mrw->hwq);
659 }
660
661 return 0;
662 }
663
bnxt_qplib_reg_mr(struct bnxt_qplib_res * res,struct bnxt_qplib_mrw * mr,struct ib_umem * umem,int num_pbls,u32 buf_pg_size)664 int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
665 struct ib_umem *umem, int num_pbls, u32 buf_pg_size)
666 {
667 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
668 struct bnxt_qplib_hwq_attr hwq_attr = {};
669 struct bnxt_qplib_sg_info sginfo = {};
670 struct creq_register_mr_resp resp;
671 struct cmdq_register_mr req;
672 u16 cmd_flags = 0, level;
673 int pages, rc;
674 u32 pg_size;
675
676 if (num_pbls) {
677 pages = roundup_pow_of_two(num_pbls);
678 /* Allocate memory for the non-leaf pages to store buf ptrs.
679 * Non-leaf pages always uses system PAGE_SIZE
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, &mr->hwq);
684 /* Use system PAGE_SIZE */
685 hwq_attr.res = res;
686 hwq_attr.depth = pages;
687 hwq_attr.stride = buf_pg_size;
688 hwq_attr.type = HWQ_TYPE_MR;
689 hwq_attr.sginfo = &sginfo;
690 hwq_attr.sginfo->umem = umem;
691 hwq_attr.sginfo->npages = pages;
692 hwq_attr.sginfo->pgsize = PAGE_SIZE;
693 hwq_attr.sginfo->pgshft = PAGE_SHIFT;
694 rc = bnxt_qplib_alloc_init_hwq(&mr->hwq, &hwq_attr);
695 if (rc) {
696 dev_err(&res->pdev->dev,
697 "SP: Reg MR memory allocation failed\n");
698 return -ENOMEM;
699 }
700 }
701
702 RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags);
703
704 /* Configure the request */
705 if (mr->hwq.level == PBL_LVL_MAX) {
706 /* No PBL provided, just use system PAGE_SIZE */
707 level = 0;
708 req.pbl = 0;
709 pg_size = PAGE_SIZE;
710 } else {
711 level = mr->hwq.level;
712 req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]);
713 }
714 pg_size = buf_pg_size ? buf_pg_size : PAGE_SIZE;
715 req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) |
716 ((ilog2(pg_size) <<
717 CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) &
718 CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK);
719 req.log2_pbl_pg_size = cpu_to_le16(((ilog2(PAGE_SIZE) <<
720 CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_SFT) &
721 CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_MASK));
722 req.access = (mr->flags & 0xFFFF);
723 req.va = cpu_to_le64(mr->va);
724 req.key = cpu_to_le32(mr->lkey);
725 req.mr_size = cpu_to_le64(mr->total_size);
726
727 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
728 (void *)&resp, NULL, false);
729 if (rc)
730 goto fail;
731
732 return 0;
733
734 fail:
735 if (mr->hwq.max_elements)
736 bnxt_qplib_free_hwq(res, &mr->hwq);
737 return rc;
738 }
739
bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res * res,struct bnxt_qplib_frpl * frpl,int max_pg_ptrs)740 int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res,
741 struct bnxt_qplib_frpl *frpl,
742 int max_pg_ptrs)
743 {
744 struct bnxt_qplib_hwq_attr hwq_attr = {};
745 struct bnxt_qplib_sg_info sginfo = {};
746 int pg_ptrs, pages, rc;
747
748 /* Re-calculate the max to fit the HWQ allocation model */
749 pg_ptrs = roundup_pow_of_two(max_pg_ptrs);
750 pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
751 if (!pages)
752 pages++;
753
754 if (pages > MAX_PBL_LVL_1_PGS)
755 return -ENOMEM;
756
757 sginfo.pgsize = PAGE_SIZE;
758 sginfo.nopte = true;
759
760 hwq_attr.res = res;
761 hwq_attr.depth = pg_ptrs;
762 hwq_attr.stride = PAGE_SIZE;
763 hwq_attr.sginfo = &sginfo;
764 hwq_attr.type = HWQ_TYPE_CTX;
765 rc = bnxt_qplib_alloc_init_hwq(&frpl->hwq, &hwq_attr);
766 if (!rc)
767 frpl->max_pg_ptrs = pg_ptrs;
768
769 return rc;
770 }
771
bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res * res,struct bnxt_qplib_frpl * frpl)772 int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res,
773 struct bnxt_qplib_frpl *frpl)
774 {
775 bnxt_qplib_free_hwq(res, &frpl->hwq);
776 return 0;
777 }
778
bnxt_qplib_map_tc2cos(struct bnxt_qplib_res * res,u16 * cids)779 int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids)
780 {
781 struct bnxt_qplib_rcfw *rcfw = res->rcfw;
782 struct cmdq_map_tc_to_cos req;
783 struct creq_map_tc_to_cos_resp resp;
784 u16 cmd_flags = 0;
785
786 RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags);
787 req.cos0 = cpu_to_le16(cids[0]);
788 req.cos1 = cpu_to_le16(cids[1]);
789
790 return bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
791 NULL, 0);
792 }
793
bnxt_qplib_get_roce_stats(struct bnxt_qplib_rcfw * rcfw,struct bnxt_qplib_roce_stats * stats)794 int bnxt_qplib_get_roce_stats(struct bnxt_qplib_rcfw *rcfw,
795 struct bnxt_qplib_roce_stats *stats)
796 {
797 struct cmdq_query_roce_stats req;
798 struct creq_query_roce_stats_resp resp;
799 struct bnxt_qplib_rcfw_sbuf *sbuf;
800 struct creq_query_roce_stats_resp_sb *sb;
801 u16 cmd_flags = 0;
802 int rc = 0;
803
804 RCFW_CMD_PREP(req, QUERY_ROCE_STATS, cmd_flags);
805
806 sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
807 if (!sbuf) {
808 dev_err(&rcfw->pdev->dev,
809 "SP: QUERY_ROCE_STATS alloc side buffer failed\n");
810 return -ENOMEM;
811 }
812
813 sb = sbuf->sb;
814 req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
815 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
816 (void *)sbuf, 0);
817 if (rc)
818 goto bail;
819 /* Extract the context from the side buffer */
820 stats->to_retransmits = le64_to_cpu(sb->to_retransmits);
821 stats->seq_err_naks_rcvd = le64_to_cpu(sb->seq_err_naks_rcvd);
822 stats->max_retry_exceeded = le64_to_cpu(sb->max_retry_exceeded);
823 stats->rnr_naks_rcvd = le64_to_cpu(sb->rnr_naks_rcvd);
824 stats->missing_resp = le64_to_cpu(sb->missing_resp);
825 stats->unrecoverable_err = le64_to_cpu(sb->unrecoverable_err);
826 stats->bad_resp_err = le64_to_cpu(sb->bad_resp_err);
827 stats->local_qp_op_err = le64_to_cpu(sb->local_qp_op_err);
828 stats->local_protection_err = le64_to_cpu(sb->local_protection_err);
829 stats->mem_mgmt_op_err = le64_to_cpu(sb->mem_mgmt_op_err);
830 stats->remote_invalid_req_err = le64_to_cpu(sb->remote_invalid_req_err);
831 stats->remote_access_err = le64_to_cpu(sb->remote_access_err);
832 stats->remote_op_err = le64_to_cpu(sb->remote_op_err);
833 stats->dup_req = le64_to_cpu(sb->dup_req);
834 stats->res_exceed_max = le64_to_cpu(sb->res_exceed_max);
835 stats->res_length_mismatch = le64_to_cpu(sb->res_length_mismatch);
836 stats->res_exceeds_wqe = le64_to_cpu(sb->res_exceeds_wqe);
837 stats->res_opcode_err = le64_to_cpu(sb->res_opcode_err);
838 stats->res_rx_invalid_rkey = le64_to_cpu(sb->res_rx_invalid_rkey);
839 stats->res_rx_domain_err = le64_to_cpu(sb->res_rx_domain_err);
840 stats->res_rx_no_perm = le64_to_cpu(sb->res_rx_no_perm);
841 stats->res_rx_range_err = le64_to_cpu(sb->res_rx_range_err);
842 stats->res_tx_invalid_rkey = le64_to_cpu(sb->res_tx_invalid_rkey);
843 stats->res_tx_domain_err = le64_to_cpu(sb->res_tx_domain_err);
844 stats->res_tx_no_perm = le64_to_cpu(sb->res_tx_no_perm);
845 stats->res_tx_range_err = le64_to_cpu(sb->res_tx_range_err);
846 stats->res_irrq_oflow = le64_to_cpu(sb->res_irrq_oflow);
847 stats->res_unsup_opcode = le64_to_cpu(sb->res_unsup_opcode);
848 stats->res_unaligned_atomic = le64_to_cpu(sb->res_unaligned_atomic);
849 stats->res_rem_inv_err = le64_to_cpu(sb->res_rem_inv_err);
850 stats->res_mem_error = le64_to_cpu(sb->res_mem_error);
851 stats->res_srq_err = le64_to_cpu(sb->res_srq_err);
852 stats->res_cmp_err = le64_to_cpu(sb->res_cmp_err);
853 stats->res_invalid_dup_rkey = le64_to_cpu(sb->res_invalid_dup_rkey);
854 stats->res_wqe_format_err = le64_to_cpu(sb->res_wqe_format_err);
855 stats->res_cq_load_err = le64_to_cpu(sb->res_cq_load_err);
856 stats->res_srq_load_err = le64_to_cpu(sb->res_srq_load_err);
857 stats->res_tx_pci_err = le64_to_cpu(sb->res_tx_pci_err);
858 stats->res_rx_pci_err = le64_to_cpu(sb->res_rx_pci_err);
859 if (!rcfw->init_oos_stats) {
860 rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
861 rcfw->init_oos_stats = 1;
862 } else {
863 stats->res_oos_drop_count +=
864 (le64_to_cpu(sb->res_oos_drop_count) -
865 rcfw->oos_prev) & BNXT_QPLIB_OOS_COUNT_MASK;
866 rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
867 }
868
869 bail:
870 bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
871 return rc;
872 }
873
bnxt_qplib_qext_stat(struct bnxt_qplib_rcfw * rcfw,u32 fid,struct bnxt_qplib_ext_stat * estat)874 int bnxt_qplib_qext_stat(struct bnxt_qplib_rcfw *rcfw, u32 fid,
875 struct bnxt_qplib_ext_stat *estat)
876 {
877 struct creq_query_roce_stats_ext_resp resp = {};
878 struct creq_query_roce_stats_ext_resp_sb *sb;
879 struct cmdq_query_roce_stats_ext req = {};
880 struct bnxt_qplib_rcfw_sbuf *sbuf;
881 u16 cmd_flags = 0;
882 int rc;
883
884 sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
885 if (!sbuf) {
886 dev_err(&rcfw->pdev->dev,
887 "SP: QUERY_ROCE_STATS_EXT alloc sb failed");
888 return -ENOMEM;
889 }
890
891 RCFW_CMD_PREP(req, QUERY_ROCE_STATS_EXT, cmd_flags);
892
893 req.resp_size = ALIGN(sizeof(*sb), BNXT_QPLIB_CMDQE_UNITS);
894 req.resp_addr = cpu_to_le64(sbuf->dma_addr);
895 req.function_id = cpu_to_le32(fid);
896 req.flags = cpu_to_le16(CMDQ_QUERY_ROCE_STATS_EXT_FLAGS_FUNCTION_ID);
897
898 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
899 (void *)&resp, (void *)sbuf, 0);
900 if (rc)
901 goto bail;
902
903 sb = sbuf->sb;
904 estat->tx_atomic_req = le64_to_cpu(sb->tx_atomic_req_pkts);
905 estat->tx_read_req = le64_to_cpu(sb->tx_read_req_pkts);
906 estat->tx_read_res = le64_to_cpu(sb->tx_read_res_pkts);
907 estat->tx_write_req = le64_to_cpu(sb->tx_write_req_pkts);
908 estat->tx_send_req = le64_to_cpu(sb->tx_send_req_pkts);
909 estat->rx_atomic_req = le64_to_cpu(sb->rx_atomic_req_pkts);
910 estat->rx_read_req = le64_to_cpu(sb->rx_read_req_pkts);
911 estat->rx_read_res = le64_to_cpu(sb->rx_read_res_pkts);
912 estat->rx_write_req = le64_to_cpu(sb->rx_write_req_pkts);
913 estat->rx_send_req = le64_to_cpu(sb->rx_send_req_pkts);
914 estat->rx_roce_good_pkts = le64_to_cpu(sb->rx_roce_good_pkts);
915 estat->rx_roce_good_bytes = le64_to_cpu(sb->rx_roce_good_bytes);
916 estat->rx_out_of_buffer = le64_to_cpu(sb->rx_out_of_buffer_pkts);
917 estat->rx_out_of_sequence = le64_to_cpu(sb->rx_out_of_sequence_pkts);
918
919 bail:
920 bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
921 return rc;
922 }
923