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 + 1;
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_srq = le16_to_cpu(sb->max_srq);
136 	attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1;
137 	attr->max_srq_sges = sb->max_srq_sge;
138 	attr->max_pkey = le32_to_cpu(sb->max_pkeys);
139 	/*
140 	 * Some versions of FW reports more than 0xFFFF.
141 	 * Restrict it for now to 0xFFFF to avoid
142 	 * reporting trucated value
143 	 */
144 	if (attr->max_pkey > 0xFFFF) {
145 		/* ib_port_attr::pkey_tbl_len is u16 */
146 		attr->max_pkey = 0xFFFF;
147 	}
148 
149 	attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
150 	attr->l2_db_size = (sb->l2_db_space_size + 1) *
151 			    (0x01 << RCFW_DBR_BASE_PAGE_SHIFT);
152 	attr->max_sgid = BNXT_QPLIB_NUM_GIDS_SUPPORTED;
153 
154 	bnxt_qplib_query_version(rcfw, attr->fw_ver);
155 
156 	for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) {
157 		temp = le32_to_cpu(sb->tqm_alloc_reqs[i]);
158 		tqm_alloc = (u8 *)&temp;
159 		attr->tqm_alloc_reqs[i * 4] = *tqm_alloc;
160 		attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc);
161 		attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc);
162 		attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
163 	}
164 
165 	attr->is_atomic = false;
166 bail:
167 	bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
168 	return rc;
169 }
170 
171 int bnxt_qplib_set_func_resources(struct bnxt_qplib_res *res,
172 				  struct bnxt_qplib_rcfw *rcfw,
173 				  struct bnxt_qplib_ctx *ctx)
174 {
175 	struct cmdq_set_func_resources req;
176 	struct creq_set_func_resources_resp resp;
177 	u16 cmd_flags = 0;
178 	int rc = 0;
179 
180 	RCFW_CMD_PREP(req, SET_FUNC_RESOURCES, cmd_flags);
181 
182 	req.number_of_qp = cpu_to_le32(ctx->qpc_count);
183 	req.number_of_mrw = cpu_to_le32(ctx->mrw_count);
184 	req.number_of_srq =  cpu_to_le32(ctx->srqc_count);
185 	req.number_of_cq = cpu_to_le32(ctx->cq_count);
186 
187 	req.max_qp_per_vf = cpu_to_le32(ctx->vf_res.max_qp_per_vf);
188 	req.max_mrw_per_vf = cpu_to_le32(ctx->vf_res.max_mrw_per_vf);
189 	req.max_srq_per_vf = cpu_to_le32(ctx->vf_res.max_srq_per_vf);
190 	req.max_cq_per_vf = cpu_to_le32(ctx->vf_res.max_cq_per_vf);
191 	req.max_gid_per_vf = cpu_to_le32(ctx->vf_res.max_gid_per_vf);
192 
193 	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
194 					  (void *)&resp,
195 					  NULL, 0);
196 	if (rc) {
197 		dev_err(&res->pdev->dev, "Failed to set function resources\n");
198 	}
199 	return rc;
200 }
201 
202 /* SGID */
203 int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res,
204 			struct bnxt_qplib_sgid_tbl *sgid_tbl, int index,
205 			struct bnxt_qplib_gid *gid)
206 {
207 	if (index >= sgid_tbl->max) {
208 		dev_err(&res->pdev->dev,
209 			"Index %d exceeded SGID table max (%d)\n",
210 			index, sgid_tbl->max);
211 		return -EINVAL;
212 	}
213 	memcpy(gid, &sgid_tbl->tbl[index].gid, sizeof(*gid));
214 	return 0;
215 }
216 
217 int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
218 			struct bnxt_qplib_gid *gid, u16 vlan_id, bool update)
219 {
220 	struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
221 						   struct bnxt_qplib_res,
222 						   sgid_tbl);
223 	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
224 	int index;
225 
226 	if (!sgid_tbl) {
227 		dev_err(&res->pdev->dev, "SGID table not allocated\n");
228 		return -EINVAL;
229 	}
230 	/* Do we need a sgid_lock here? */
231 	if (!sgid_tbl->active) {
232 		dev_err(&res->pdev->dev, "SGID table has no active entries\n");
233 		return -ENOMEM;
234 	}
235 	for (index = 0; index < sgid_tbl->max; index++) {
236 		if (!memcmp(&sgid_tbl->tbl[index].gid, gid, sizeof(*gid)) &&
237 		    vlan_id == sgid_tbl->tbl[index].vlan_id)
238 			break;
239 	}
240 	if (index == sgid_tbl->max) {
241 		dev_warn(&res->pdev->dev, "GID not found in the SGID table\n");
242 		return 0;
243 	}
244 	/* Remove GID from the SGID table */
245 	if (update) {
246 		struct cmdq_delete_gid req;
247 		struct creq_delete_gid_resp resp;
248 		u16 cmd_flags = 0;
249 		int rc;
250 
251 		RCFW_CMD_PREP(req, DELETE_GID, cmd_flags);
252 		if (sgid_tbl->hw_id[index] == 0xFFFF) {
253 			dev_err(&res->pdev->dev,
254 				"GID entry contains an invalid HW id\n");
255 			return -EINVAL;
256 		}
257 		req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]);
258 		rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
259 						  (void *)&resp, NULL, 0);
260 		if (rc)
261 			return rc;
262 	}
263 	memcpy(&sgid_tbl->tbl[index].gid, &bnxt_qplib_gid_zero,
264 	       sizeof(bnxt_qplib_gid_zero));
265 	sgid_tbl->tbl[index].vlan_id = 0xFFFF;
266 	sgid_tbl->vlan[index] = 0;
267 	sgid_tbl->active--;
268 	dev_dbg(&res->pdev->dev,
269 		"SGID deleted hw_id[0x%x] = 0x%x active = 0x%x\n",
270 		 index, sgid_tbl->hw_id[index], sgid_tbl->active);
271 	sgid_tbl->hw_id[index] = (u16)-1;
272 
273 	/* unlock */
274 	return 0;
275 }
276 
277 int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
278 			struct bnxt_qplib_gid *gid, u8 *smac, u16 vlan_id,
279 			bool update, u32 *index)
280 {
281 	struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
282 						   struct bnxt_qplib_res,
283 						   sgid_tbl);
284 	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
285 	int i, free_idx;
286 
287 	if (!sgid_tbl) {
288 		dev_err(&res->pdev->dev, "SGID table not allocated\n");
289 		return -EINVAL;
290 	}
291 	/* Do we need a sgid_lock here? */
292 	if (sgid_tbl->active == sgid_tbl->max) {
293 		dev_err(&res->pdev->dev, "SGID table is full\n");
294 		return -ENOMEM;
295 	}
296 	free_idx = sgid_tbl->max;
297 	for (i = 0; i < sgid_tbl->max; i++) {
298 		if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid)) &&
299 		    sgid_tbl->tbl[i].vlan_id == vlan_id) {
300 			dev_dbg(&res->pdev->dev,
301 				"SGID entry already exist in entry %d!\n", i);
302 			*index = i;
303 			return -EALREADY;
304 		} else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero,
305 				   sizeof(bnxt_qplib_gid_zero)) &&
306 			   free_idx == sgid_tbl->max) {
307 			free_idx = i;
308 		}
309 	}
310 	if (free_idx == sgid_tbl->max) {
311 		dev_err(&res->pdev->dev,
312 			"SGID table is FULL but count is not MAX??\n");
313 		return -ENOMEM;
314 	}
315 	if (update) {
316 		struct cmdq_add_gid req;
317 		struct creq_add_gid_resp resp;
318 		u16 cmd_flags = 0;
319 		int rc;
320 
321 		RCFW_CMD_PREP(req, ADD_GID, cmd_flags);
322 
323 		req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
324 		req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
325 		req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
326 		req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
327 		/*
328 		 * driver should ensure that all RoCE traffic is always VLAN
329 		 * tagged if RoCE traffic is running on non-zero VLAN ID or
330 		 * RoCE traffic is running on non-zero Priority.
331 		 */
332 		if ((vlan_id != 0xFFFF) || res->prio) {
333 			if (vlan_id != 0xFFFF)
334 				req.vlan = cpu_to_le16
335 				(vlan_id & CMDQ_ADD_GID_VLAN_VLAN_ID_MASK);
336 			req.vlan |= cpu_to_le16
337 					(CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
338 					 CMDQ_ADD_GID_VLAN_VLAN_EN);
339 		}
340 
341 		/* MAC in network format */
342 		req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
343 		req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
344 		req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
345 
346 		rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
347 						  (void *)&resp, NULL, 0);
348 		if (rc)
349 			return rc;
350 		sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid);
351 	}
352 	/* Add GID to the sgid_tbl */
353 	memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid));
354 	sgid_tbl->tbl[free_idx].vlan_id = vlan_id;
355 	sgid_tbl->active++;
356 	if (vlan_id != 0xFFFF)
357 		sgid_tbl->vlan[free_idx] = 1;
358 
359 	dev_dbg(&res->pdev->dev,
360 		"SGID added hw_id[0x%x] = 0x%x active = 0x%x\n",
361 		 free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active);
362 
363 	*index = free_idx;
364 	/* unlock */
365 	return 0;
366 }
367 
368 int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
369 			   struct bnxt_qplib_gid *gid, u16 gid_idx,
370 			   u8 *smac)
371 {
372 	struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
373 						   struct bnxt_qplib_res,
374 						   sgid_tbl);
375 	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
376 	struct creq_modify_gid_resp resp;
377 	struct cmdq_modify_gid req;
378 	int rc;
379 	u16 cmd_flags = 0;
380 
381 	RCFW_CMD_PREP(req, MODIFY_GID, cmd_flags);
382 
383 	req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
384 	req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
385 	req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
386 	req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
387 	if (res->prio) {
388 		req.vlan |= cpu_to_le16
389 			(CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
390 			 CMDQ_ADD_GID_VLAN_VLAN_EN);
391 	}
392 
393 	/* MAC in network format */
394 	req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
395 	req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
396 	req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
397 
398 	req.gid_index = cpu_to_le16(gid_idx);
399 
400 	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
401 					  (void *)&resp, NULL, 0);
402 	return rc;
403 }
404 
405 /* pkeys */
406 int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res,
407 			struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index,
408 			u16 *pkey)
409 {
410 	if (index == 0xFFFF) {
411 		*pkey = 0xFFFF;
412 		return 0;
413 	}
414 	if (index >= pkey_tbl->max) {
415 		dev_err(&res->pdev->dev,
416 			"Index %d exceeded PKEY table max (%d)\n",
417 			index, pkey_tbl->max);
418 		return -EINVAL;
419 	}
420 	memcpy(pkey, &pkey_tbl->tbl[index], sizeof(*pkey));
421 	return 0;
422 }
423 
424 int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res,
425 			struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
426 			bool update)
427 {
428 	int i, rc = 0;
429 
430 	if (!pkey_tbl) {
431 		dev_err(&res->pdev->dev, "PKEY table not allocated\n");
432 		return -EINVAL;
433 	}
434 
435 	/* Do we need a pkey_lock here? */
436 	if (!pkey_tbl->active) {
437 		dev_err(&res->pdev->dev, "PKEY table has no active entries\n");
438 		return -ENOMEM;
439 	}
440 	for (i = 0; i < pkey_tbl->max; i++) {
441 		if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
442 			break;
443 	}
444 	if (i == pkey_tbl->max) {
445 		dev_err(&res->pdev->dev,
446 			"PKEY 0x%04x not found in the pkey table\n", *pkey);
447 		return -ENOMEM;
448 	}
449 	memset(&pkey_tbl->tbl[i], 0, sizeof(*pkey));
450 	pkey_tbl->active--;
451 
452 	/* unlock */
453 	return rc;
454 }
455 
456 int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res,
457 			struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
458 			bool update)
459 {
460 	int i, free_idx, rc = 0;
461 
462 	if (!pkey_tbl) {
463 		dev_err(&res->pdev->dev, "PKEY table not allocated\n");
464 		return -EINVAL;
465 	}
466 
467 	/* Do we need a pkey_lock here? */
468 	if (pkey_tbl->active == pkey_tbl->max) {
469 		dev_err(&res->pdev->dev, "PKEY table is full\n");
470 		return -ENOMEM;
471 	}
472 	free_idx = pkey_tbl->max;
473 	for (i = 0; i < pkey_tbl->max; i++) {
474 		if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
475 			return -EALREADY;
476 		else if (!pkey_tbl->tbl[i] && free_idx == pkey_tbl->max)
477 			free_idx = i;
478 	}
479 	if (free_idx == pkey_tbl->max) {
480 		dev_err(&res->pdev->dev,
481 			"PKEY table is FULL but count is not MAX??\n");
482 		return -ENOMEM;
483 	}
484 	/* Add PKEY to the pkey_tbl */
485 	memcpy(&pkey_tbl->tbl[free_idx], pkey, sizeof(*pkey));
486 	pkey_tbl->active++;
487 
488 	/* unlock */
489 	return rc;
490 }
491 
492 /* AH */
493 int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
494 			 bool block)
495 {
496 	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
497 	struct cmdq_create_ah req;
498 	struct creq_create_ah_resp resp;
499 	u16 cmd_flags = 0;
500 	u32 temp32[4];
501 	u16 temp16[3];
502 	int rc;
503 
504 	RCFW_CMD_PREP(req, CREATE_AH, cmd_flags);
505 
506 	memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid));
507 	req.dgid[0] = cpu_to_le32(temp32[0]);
508 	req.dgid[1] = cpu_to_le32(temp32[1]);
509 	req.dgid[2] = cpu_to_le32(temp32[2]);
510 	req.dgid[3] = cpu_to_le32(temp32[3]);
511 
512 	req.type = ah->nw_type;
513 	req.hop_limit = ah->hop_limit;
514 	req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]);
515 	req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label &
516 					CMDQ_CREATE_AH_FLOW_LABEL_MASK) |
517 					CMDQ_CREATE_AH_DEST_VLAN_ID_MASK);
518 	req.pd_id = cpu_to_le32(ah->pd->id);
519 	req.traffic_class = ah->traffic_class;
520 
521 	/* MAC in network format */
522 	memcpy(temp16, ah->dmac, 6);
523 	req.dest_mac[0] = cpu_to_le16(temp16[0]);
524 	req.dest_mac[1] = cpu_to_le16(temp16[1]);
525 	req.dest_mac[2] = cpu_to_le16(temp16[2]);
526 
527 	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
528 					  NULL, block);
529 	if (rc)
530 		return rc;
531 
532 	ah->id = le32_to_cpu(resp.xid);
533 	return 0;
534 }
535 
536 void bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
537 			   bool block)
538 {
539 	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
540 	struct cmdq_destroy_ah req;
541 	struct creq_destroy_ah_resp resp;
542 	u16 cmd_flags = 0;
543 
544 	/* Clean up the AH table in the device */
545 	RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags);
546 
547 	req.ah_cid = cpu_to_le32(ah->id);
548 
549 	bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, NULL,
550 				     block);
551 }
552 
553 /* MRW */
554 int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
555 {
556 	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
557 	struct cmdq_deallocate_key req;
558 	struct creq_deallocate_key_resp resp;
559 	u16 cmd_flags = 0;
560 	int rc;
561 
562 	if (mrw->lkey == 0xFFFFFFFF) {
563 		dev_info(&res->pdev->dev, "SP: Free a reserved lkey MRW\n");
564 		return 0;
565 	}
566 
567 	RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags);
568 
569 	req.mrw_flags = mrw->type;
570 
571 	if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
572 	    (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
573 	    (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
574 		req.key = cpu_to_le32(mrw->rkey);
575 	else
576 		req.key = cpu_to_le32(mrw->lkey);
577 
578 	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
579 					  NULL, 0);
580 	if (rc)
581 		return rc;
582 
583 	/* Free the qplib's MRW memory */
584 	if (mrw->hwq.max_elements)
585 		bnxt_qplib_free_hwq(res, &mrw->hwq);
586 
587 	return 0;
588 }
589 
590 int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
591 {
592 	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
593 	struct cmdq_allocate_mrw req;
594 	struct creq_allocate_mrw_resp resp;
595 	u16 cmd_flags = 0;
596 	unsigned long tmp;
597 	int rc;
598 
599 	RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags);
600 
601 	req.pd_id = cpu_to_le32(mrw->pd->id);
602 	req.mrw_flags = mrw->type;
603 	if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR &&
604 	     mrw->flags & BNXT_QPLIB_FR_PMR) ||
605 	    mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A ||
606 	    mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)
607 		req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY;
608 	tmp = (unsigned long)mrw;
609 	req.mrw_handle = cpu_to_le64(tmp);
610 
611 	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
612 					  (void *)&resp, NULL, 0);
613 	if (rc)
614 		return rc;
615 
616 	if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
617 	    (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
618 	    (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
619 		mrw->rkey = le32_to_cpu(resp.xid);
620 	else
621 		mrw->lkey = le32_to_cpu(resp.xid);
622 	return 0;
623 }
624 
625 int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw,
626 			 bool block)
627 {
628 	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
629 	struct cmdq_deregister_mr req;
630 	struct creq_deregister_mr_resp resp;
631 	u16 cmd_flags = 0;
632 	int rc;
633 
634 	RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags);
635 
636 	req.lkey = cpu_to_le32(mrw->lkey);
637 	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
638 					  (void *)&resp, NULL, block);
639 	if (rc)
640 		return rc;
641 
642 	/* Free the qplib's MR memory */
643 	if (mrw->hwq.max_elements) {
644 		mrw->va = 0;
645 		mrw->total_size = 0;
646 		bnxt_qplib_free_hwq(res, &mrw->hwq);
647 	}
648 
649 	return 0;
650 }
651 
652 int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
653 		      u64 *pbl_tbl, int num_pbls, bool block, u32 buf_pg_size)
654 {
655 	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
656 	struct bnxt_qplib_hwq_attr hwq_attr = {};
657 	struct bnxt_qplib_sg_info sginfo = {};
658 	struct creq_register_mr_resp resp;
659 	struct cmdq_register_mr req;
660 	int pg_ptrs, pages, i, rc;
661 	u16 cmd_flags = 0, level;
662 	dma_addr_t **pbl_ptr;
663 	u32 pg_size;
664 
665 	if (num_pbls) {
666 		/* Allocate memory for the non-leaf pages to store buf ptrs.
667 		 * Non-leaf pages always uses system PAGE_SIZE
668 		 */
669 		pg_ptrs = roundup_pow_of_two(num_pbls);
670 		pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
671 		if (!pages)
672 			pages++;
673 
674 		if (pages > MAX_PBL_LVL_1_PGS) {
675 			dev_err(&res->pdev->dev,
676 				"SP: Reg MR: pages requested (0x%x) exceeded max (0x%x)\n",
677 				pages, MAX_PBL_LVL_1_PGS);
678 			return -ENOMEM;
679 		}
680 		/* Free the hwq if it already exist, must be a rereg */
681 		if (mr->hwq.max_elements)
682 			bnxt_qplib_free_hwq(res, &mr->hwq);
683 		/* Use system PAGE_SIZE */
684 		hwq_attr.res = res;
685 		hwq_attr.depth = pages;
686 		hwq_attr.stride = PAGE_SIZE;
687 		hwq_attr.type = HWQ_TYPE_MR;
688 		hwq_attr.sginfo = &sginfo;
689 		hwq_attr.sginfo->npages = pages;
690 		hwq_attr.sginfo->pgsize = PAGE_SIZE;
691 		hwq_attr.sginfo->pgshft = PAGE_SHIFT;
692 		rc = bnxt_qplib_alloc_init_hwq(&mr->hwq, &hwq_attr);
693 		if (rc) {
694 			dev_err(&res->pdev->dev,
695 				"SP: Reg MR memory allocation failed\n");
696 			return -ENOMEM;
697 		}
698 		/* Write to the hwq */
699 		pbl_ptr = (dma_addr_t **)mr->hwq.pbl_ptr;
700 		for (i = 0; i < num_pbls; i++)
701 			pbl_ptr[PTR_PG(i)][PTR_IDX(i)] =
702 				(pbl_tbl[i] & PAGE_MASK) | PTU_PTE_VALID;
703 	}
704 
705 	RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags);
706 
707 	/* Configure the request */
708 	if (mr->hwq.level == PBL_LVL_MAX) {
709 		/* No PBL provided, just use system PAGE_SIZE */
710 		level = 0;
711 		req.pbl = 0;
712 		pg_size = PAGE_SIZE;
713 	} else {
714 		level = mr->hwq.level + 1;
715 		req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]);
716 	}
717 	pg_size = buf_pg_size ? buf_pg_size : PAGE_SIZE;
718 	req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) |
719 			       ((ilog2(pg_size) <<
720 				 CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) &
721 				CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK);
722 	req.log2_pbl_pg_size = cpu_to_le16(((ilog2(PAGE_SIZE) <<
723 				 CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_SFT) &
724 				CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_MASK));
725 	req.access = (mr->flags & 0xFFFF);
726 	req.va = cpu_to_le64(mr->va);
727 	req.key = cpu_to_le32(mr->lkey);
728 	req.mr_size = cpu_to_le64(mr->total_size);
729 
730 	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
731 					  (void *)&resp, NULL, block);
732 	if (rc)
733 		goto fail;
734 
735 	return 0;
736 
737 fail:
738 	if (mr->hwq.max_elements)
739 		bnxt_qplib_free_hwq(res, &mr->hwq);
740 	return rc;
741 }
742 
743 int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res,
744 					struct bnxt_qplib_frpl *frpl,
745 					int max_pg_ptrs)
746 {
747 	struct bnxt_qplib_hwq_attr hwq_attr = {};
748 	struct bnxt_qplib_sg_info sginfo = {};
749 	int pg_ptrs, pages, rc;
750 
751 	/* Re-calculate the max to fit the HWQ allocation model */
752 	pg_ptrs = roundup_pow_of_two(max_pg_ptrs);
753 	pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
754 	if (!pages)
755 		pages++;
756 
757 	if (pages > MAX_PBL_LVL_1_PGS)
758 		return -ENOMEM;
759 
760 	sginfo.pgsize = PAGE_SIZE;
761 	sginfo.nopte = true;
762 
763 	hwq_attr.res = res;
764 	hwq_attr.depth = pg_ptrs;
765 	hwq_attr.stride = PAGE_SIZE;
766 	hwq_attr.sginfo = &sginfo;
767 	hwq_attr.type = HWQ_TYPE_CTX;
768 	rc = bnxt_qplib_alloc_init_hwq(&frpl->hwq, &hwq_attr);
769 	if (!rc)
770 		frpl->max_pg_ptrs = pg_ptrs;
771 
772 	return rc;
773 }
774 
775 int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res,
776 				       struct bnxt_qplib_frpl *frpl)
777 {
778 	bnxt_qplib_free_hwq(res, &frpl->hwq);
779 	return 0;
780 }
781 
782 int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids)
783 {
784 	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
785 	struct cmdq_map_tc_to_cos req;
786 	struct creq_map_tc_to_cos_resp resp;
787 	u16 cmd_flags = 0;
788 
789 	RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags);
790 	req.cos0 = cpu_to_le16(cids[0]);
791 	req.cos1 = cpu_to_le16(cids[1]);
792 
793 	return bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
794 						NULL, 0);
795 }
796 
797 int bnxt_qplib_get_roce_stats(struct bnxt_qplib_rcfw *rcfw,
798 			      struct bnxt_qplib_roce_stats *stats)
799 {
800 	struct cmdq_query_roce_stats req;
801 	struct creq_query_roce_stats_resp resp;
802 	struct bnxt_qplib_rcfw_sbuf *sbuf;
803 	struct creq_query_roce_stats_resp_sb *sb;
804 	u16 cmd_flags = 0;
805 	int rc = 0;
806 
807 	RCFW_CMD_PREP(req, QUERY_ROCE_STATS, cmd_flags);
808 
809 	sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
810 	if (!sbuf) {
811 		dev_err(&rcfw->pdev->dev,
812 			"SP: QUERY_ROCE_STATS alloc side buffer failed\n");
813 		return -ENOMEM;
814 	}
815 
816 	sb = sbuf->sb;
817 	req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
818 	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
819 					  (void *)sbuf, 0);
820 	if (rc)
821 		goto bail;
822 	/* Extract the context from the side buffer */
823 	stats->to_retransmits = le64_to_cpu(sb->to_retransmits);
824 	stats->seq_err_naks_rcvd = le64_to_cpu(sb->seq_err_naks_rcvd);
825 	stats->max_retry_exceeded = le64_to_cpu(sb->max_retry_exceeded);
826 	stats->rnr_naks_rcvd = le64_to_cpu(sb->rnr_naks_rcvd);
827 	stats->missing_resp = le64_to_cpu(sb->missing_resp);
828 	stats->unrecoverable_err = le64_to_cpu(sb->unrecoverable_err);
829 	stats->bad_resp_err = le64_to_cpu(sb->bad_resp_err);
830 	stats->local_qp_op_err = le64_to_cpu(sb->local_qp_op_err);
831 	stats->local_protection_err = le64_to_cpu(sb->local_protection_err);
832 	stats->mem_mgmt_op_err = le64_to_cpu(sb->mem_mgmt_op_err);
833 	stats->remote_invalid_req_err = le64_to_cpu(sb->remote_invalid_req_err);
834 	stats->remote_access_err = le64_to_cpu(sb->remote_access_err);
835 	stats->remote_op_err = le64_to_cpu(sb->remote_op_err);
836 	stats->dup_req = le64_to_cpu(sb->dup_req);
837 	stats->res_exceed_max = le64_to_cpu(sb->res_exceed_max);
838 	stats->res_length_mismatch = le64_to_cpu(sb->res_length_mismatch);
839 	stats->res_exceeds_wqe = le64_to_cpu(sb->res_exceeds_wqe);
840 	stats->res_opcode_err = le64_to_cpu(sb->res_opcode_err);
841 	stats->res_rx_invalid_rkey = le64_to_cpu(sb->res_rx_invalid_rkey);
842 	stats->res_rx_domain_err = le64_to_cpu(sb->res_rx_domain_err);
843 	stats->res_rx_no_perm = le64_to_cpu(sb->res_rx_no_perm);
844 	stats->res_rx_range_err = le64_to_cpu(sb->res_rx_range_err);
845 	stats->res_tx_invalid_rkey = le64_to_cpu(sb->res_tx_invalid_rkey);
846 	stats->res_tx_domain_err = le64_to_cpu(sb->res_tx_domain_err);
847 	stats->res_tx_no_perm = le64_to_cpu(sb->res_tx_no_perm);
848 	stats->res_tx_range_err = le64_to_cpu(sb->res_tx_range_err);
849 	stats->res_irrq_oflow = le64_to_cpu(sb->res_irrq_oflow);
850 	stats->res_unsup_opcode = le64_to_cpu(sb->res_unsup_opcode);
851 	stats->res_unaligned_atomic = le64_to_cpu(sb->res_unaligned_atomic);
852 	stats->res_rem_inv_err = le64_to_cpu(sb->res_rem_inv_err);
853 	stats->res_mem_error = le64_to_cpu(sb->res_mem_error);
854 	stats->res_srq_err = le64_to_cpu(sb->res_srq_err);
855 	stats->res_cmp_err = le64_to_cpu(sb->res_cmp_err);
856 	stats->res_invalid_dup_rkey = le64_to_cpu(sb->res_invalid_dup_rkey);
857 	stats->res_wqe_format_err = le64_to_cpu(sb->res_wqe_format_err);
858 	stats->res_cq_load_err = le64_to_cpu(sb->res_cq_load_err);
859 	stats->res_srq_load_err = le64_to_cpu(sb->res_srq_load_err);
860 	stats->res_tx_pci_err = le64_to_cpu(sb->res_tx_pci_err);
861 	stats->res_rx_pci_err = le64_to_cpu(sb->res_rx_pci_err);
862 	if (!rcfw->init_oos_stats) {
863 		rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
864 		rcfw->init_oos_stats = 1;
865 	} else {
866 		stats->res_oos_drop_count +=
867 				(le64_to_cpu(sb->res_oos_drop_count) -
868 				 rcfw->oos_prev) & BNXT_QPLIB_OOS_COUNT_MASK;
869 		rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
870 	}
871 
872 bail:
873 	bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
874 	return rc;
875 }
876