summaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/hw/bnxt_re/qplib_sp.c
blob: 66954ff6a2f27569cb2e808c0feecb3dfc147807 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
/*
 * Broadcom NetXtreme-E RoCE driver.
 *
 * Copyright (c) 2016 - 2017, Broadcom. All rights reserved.  The term
 * Broadcom refers to Broadcom Limited and/or its subsidiaries.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * BSD license below:
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Description: Slow Path Operators
 */

#define dev_fmt(fmt) "QPLIB: " fmt

#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/sched.h>
#include <linux/pci.h>

#include "roce_hsi.h"

#include "qplib_res.h"
#include "qplib_rcfw.h"
#include "qplib_sp.h"

const struct bnxt_qplib_gid bnxt_qplib_gid_zero = {{ 0, 0, 0, 0, 0, 0, 0, 0,
						     0, 0, 0, 0, 0, 0, 0, 0 } };

/* Device */

static void bnxt_qplib_query_version(struct bnxt_qplib_rcfw *rcfw,
				     char *fw_ver)
{
	struct cmdq_query_version req;
	struct creq_query_version_resp resp;
	u16 cmd_flags = 0;
	int rc = 0;

	RCFW_CMD_PREP(req, QUERY_VERSION, cmd_flags);

	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
					  (void *)&resp, NULL, 0);
	if (rc)
		return;
	fw_ver[0] = resp.fw_maj;
	fw_ver[1] = resp.fw_minor;
	fw_ver[2] = resp.fw_bld;
	fw_ver[3] = resp.fw_rsvd;
}

int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
			    struct bnxt_qplib_dev_attr *attr, bool vf)
{
	struct cmdq_query_func req;
	struct creq_query_func_resp resp;
	struct bnxt_qplib_rcfw_sbuf *sbuf;
	struct creq_query_func_resp_sb *sb;
	u16 cmd_flags = 0;
	u32 temp;
	u8 *tqm_alloc;
	int i, rc = 0;

	RCFW_CMD_PREP(req, QUERY_FUNC, cmd_flags);

	sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
	if (!sbuf) {
		dev_err(&rcfw->pdev->dev,
			"SP: QUERY_FUNC alloc side buffer failed\n");
		return -ENOMEM;
	}

	sb = sbuf->sb;
	req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
					  (void *)sbuf, 0);
	if (rc)
		goto bail;

	/* Extract the context from the side buffer */
	attr->max_qp = le32_to_cpu(sb->max_qp);
	/* max_qp value reported by FW for PF doesn't include the QP1 for PF */
	if (!vf)
		attr->max_qp += 1;
	attr->max_qp_rd_atom =
		sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
		BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom;
	attr->max_qp_init_rd_atom =
		sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
		BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom;
	attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr);
	/*
	 * 128 WQEs needs to be reserved for the HW (8916). Prevent
	 * reporting the max number
	 */
	attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS;
	attr->max_qp_sges = bnxt_qplib_is_chip_gen_p5(rcfw->res->cctx) ?
			    6 : sb->max_sge;
	attr->max_cq = le32_to_cpu(sb->max_cq);
	attr->max_cq_wqes = le32_to_cpu(sb->max_cqe);
	attr->max_cq_sges = attr->max_qp_sges;
	attr->max_mr = le32_to_cpu(sb->max_mr);
	attr->max_mw = le32_to_cpu(sb->max_mw);

	attr->max_mr_size = le64_to_cpu(sb->max_mr_size);
	attr->max_pd = 64 * 1024;
	attr->max_raw_ethy_qp = le32_to_cpu(sb->max_raw_eth_qp);
	attr->max_ah = le32_to_cpu(sb->max_ah);

	attr->max_fmr = le32_to_cpu(sb->max_fmr);
	attr->max_map_per_fmr = sb->max_map_per_fmr;

	attr->max_srq = le16_to_cpu(sb->max_srq);
	attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1;
	attr->max_srq_sges = sb->max_srq_sge;
	attr->max_pkey = le32_to_cpu(sb->max_pkeys);
	/*
	 * Some versions of FW reports more than 0xFFFF.
	 * Restrict it for now to 0xFFFF to avoid
	 * reporting trucated value
	 */
	if (attr->max_pkey > 0xFFFF) {
		/* ib_port_attr::pkey_tbl_len is u16 */
		attr->max_pkey = 0xFFFF;
	}

	attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
	attr->l2_db_size = (sb->l2_db_space_size + 1) *
			    (0x01 << RCFW_DBR_BASE_PAGE_SHIFT);
	attr->max_sgid = le32_to_cpu(sb->max_gid);

	bnxt_qplib_query_version(rcfw, attr->fw_ver);

	for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) {
		temp = le32_to_cpu(sb->tqm_alloc_reqs[i]);
		tqm_alloc = (u8 *)&temp;
		attr->tqm_alloc_reqs[i * 4] = *tqm_alloc;
		attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc);
		attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc);
		attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
	}

	attr->is_atomic = false;
bail:
	bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
	return rc;
}

int bnxt_qplib_set_func_resources(struct bnxt_qplib_res *res,
				  struct bnxt_qplib_rcfw *rcfw,
				  struct bnxt_qplib_ctx *ctx)
{
	struct cmdq_set_func_resources req;
	struct creq_set_func_resources_resp resp;
	u16 cmd_flags = 0;
	int rc = 0;

	RCFW_CMD_PREP(req, SET_FUNC_RESOURCES, cmd_flags);

	req.number_of_qp = cpu_to_le32(ctx->qpc_count);
	req.number_of_mrw = cpu_to_le32(ctx->mrw_count);
	req.number_of_srq =  cpu_to_le32(ctx->srqc_count);
	req.number_of_cq = cpu_to_le32(ctx->cq_count);

	req.max_qp_per_vf = cpu_to_le32(ctx->vf_res.max_qp_per_vf);
	req.max_mrw_per_vf = cpu_to_le32(ctx->vf_res.max_mrw_per_vf);
	req.max_srq_per_vf = cpu_to_le32(ctx->vf_res.max_srq_per_vf);
	req.max_cq_per_vf = cpu_to_le32(ctx->vf_res.max_cq_per_vf);
	req.max_gid_per_vf = cpu_to_le32(ctx->vf_res.max_gid_per_vf);

	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
					  (void *)&resp,
					  NULL, 0);
	if (rc) {
		dev_err(&res->pdev->dev, "Failed to set function resources\n");
	}
	return rc;
}

/* SGID */
int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res,
			struct bnxt_qplib_sgid_tbl *sgid_tbl, int index,
			struct bnxt_qplib_gid *gid)
{
	if (index >= sgid_tbl->max) {
		dev_err(&res->pdev->dev,
			"Index %d exceeded SGID table max (%d)\n",
			index, sgid_tbl->max);
		return -EINVAL;
	}
	memcpy(gid, &sgid_tbl->tbl[index].gid, sizeof(*gid));
	return 0;
}

int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
			struct bnxt_qplib_gid *gid, u16 vlan_id, bool update)
{
	struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
						   struct bnxt_qplib_res,
						   sgid_tbl);
	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
	int index;

	if (!sgid_tbl) {
		dev_err(&res->pdev->dev, "SGID table not allocated\n");
		return -EINVAL;
	}
	/* Do we need a sgid_lock here? */
	if (!sgid_tbl->active) {
		dev_err(&res->pdev->dev, "SGID table has no active entries\n");
		return -ENOMEM;
	}
	for (index = 0; index < sgid_tbl->max; index++) {
		if (!memcmp(&sgid_tbl->tbl[index].gid, gid, sizeof(*gid)) &&
		    vlan_id == sgid_tbl->tbl[index].vlan_id)
			break;
	}
	if (index == sgid_tbl->max) {
		dev_warn(&res->pdev->dev, "GID not found in the SGID table\n");
		return 0;
	}
	/* Remove GID from the SGID table */
	if (update) {
		struct cmdq_delete_gid req;
		struct creq_delete_gid_resp resp;
		u16 cmd_flags = 0;
		int rc;

		RCFW_CMD_PREP(req, DELETE_GID, cmd_flags);
		if (sgid_tbl->hw_id[index] == 0xFFFF) {
			dev_err(&res->pdev->dev,
				"GID entry contains an invalid HW id\n");
			return -EINVAL;
		}
		req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]);
		rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
						  (void *)&resp, NULL, 0);
		if (rc)
			return rc;
	}
	memcpy(&sgid_tbl->tbl[index].gid, &bnxt_qplib_gid_zero,
	       sizeof(bnxt_qplib_gid_zero));
	sgid_tbl->tbl[index].vlan_id = 0xFFFF;
	sgid_tbl->vlan[index] = 0;
	sgid_tbl->active--;
	dev_dbg(&res->pdev->dev,
		"SGID deleted hw_id[0x%x] = 0x%x active = 0x%x\n",
		 index, sgid_tbl->hw_id[index], sgid_tbl->active);
	sgid_tbl->hw_id[index] = (u16)-1;

	/* unlock */
	return 0;
}

int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
			struct bnxt_qplib_gid *gid, u8 *smac, u16 vlan_id,
			bool update, u32 *index)
{
	struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
						   struct bnxt_qplib_res,
						   sgid_tbl);
	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
	int i, free_idx;

	if (!sgid_tbl) {
		dev_err(&res->pdev->dev, "SGID table not allocated\n");
		return -EINVAL;
	}
	/* Do we need a sgid_lock here? */
	if (sgid_tbl->active == sgid_tbl->max) {
		dev_err(&res->pdev->dev, "SGID table is full\n");
		return -ENOMEM;
	}
	free_idx = sgid_tbl->max;
	for (i = 0; i < sgid_tbl->max; i++) {
		if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid)) &&
		    sgid_tbl->tbl[i].vlan_id == vlan_id) {
			dev_dbg(&res->pdev->dev,
				"SGID entry already exist in entry %d!\n", i);
			*index = i;
			return -EALREADY;
		} else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero,
				   sizeof(bnxt_qplib_gid_zero)) &&
			   free_idx == sgid_tbl->max) {
			free_idx = i;
		}
	}
	if (free_idx == sgid_tbl->max) {
		dev_err(&res->pdev->dev,
			"SGID table is FULL but count is not MAX??\n");
		return -ENOMEM;
	}
	if (update) {
		struct cmdq_add_gid req;
		struct creq_add_gid_resp resp;
		u16 cmd_flags = 0;
		int rc;

		RCFW_CMD_PREP(req, ADD_GID, cmd_flags);

		req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
		req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
		req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
		req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
		/*
		 * driver should ensure that all RoCE traffic is always VLAN
		 * tagged if RoCE traffic is running on non-zero VLAN ID or
		 * RoCE traffic is running on non-zero Priority.
		 */
		if ((vlan_id != 0xFFFF) || res->prio) {
			if (vlan_id != 0xFFFF)
				req.vlan = cpu_to_le16
				(vlan_id & CMDQ_ADD_GID_VLAN_VLAN_ID_MASK);
			req.vlan |= cpu_to_le16
					(CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
					 CMDQ_ADD_GID_VLAN_VLAN_EN);
		}

		/* MAC in network format */
		req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
		req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
		req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);

		rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
						  (void *)&resp, NULL, 0);
		if (rc)
			return rc;
		sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid);
	}
	/* Add GID to the sgid_tbl */
	memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid));
	sgid_tbl->tbl[free_idx].vlan_id = vlan_id;
	sgid_tbl->active++;
	if (vlan_id != 0xFFFF)
		sgid_tbl->vlan[free_idx] = 1;

	dev_dbg(&res->pdev->dev,
		"SGID added hw_id[0x%x] = 0x%x active = 0x%x\n",
		 free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active);

	*index = free_idx;
	/* unlock */
	return 0;
}

int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
			   struct bnxt_qplib_gid *gid, u16 gid_idx,
			   u8 *smac)
{
	struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
						   struct bnxt_qplib_res,
						   sgid_tbl);
	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
	struct creq_modify_gid_resp resp;
	struct cmdq_modify_gid req;
	int rc;
	u16 cmd_flags = 0;

	RCFW_CMD_PREP(req, MODIFY_GID, cmd_flags);

	req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
	req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
	req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
	req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
	if (res->prio) {
		req.vlan |= cpu_to_le16
			(CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
			 CMDQ_ADD_GID_VLAN_VLAN_EN);
	}

	/* MAC in network format */
	req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
	req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
	req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);

	req.gid_index = cpu_to_le16(gid_idx);

	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
					  (void *)&resp, NULL, 0);
	return rc;
}

/* pkeys */
int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res,
			struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index,
			u16 *pkey)
{
	if (index == 0xFFFF) {
		*pkey = 0xFFFF;
		return 0;
	}
	if (index >= pkey_tbl->max) {
		dev_err(&res->pdev->dev,
			"Index %d exceeded PKEY table max (%d)\n",
			index, pkey_tbl->max);
		return -EINVAL;
	}
	memcpy(pkey, &pkey_tbl->tbl[index], sizeof(*pkey));
	return 0;
}

int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res,
			struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
			bool update)
{
	int i, rc = 0;

	if (!pkey_tbl) {
		dev_err(&res->pdev->dev, "PKEY table not allocated\n");
		return -EINVAL;
	}

	/* Do we need a pkey_lock here? */
	if (!pkey_tbl->active) {
		dev_err(&res->pdev->dev, "PKEY table has no active entries\n");
		return -ENOMEM;
	}
	for (i = 0; i < pkey_tbl->max; i++) {
		if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
			break;
	}
	if (i == pkey_tbl->max) {
		dev_err(&res->pdev->dev,
			"PKEY 0x%04x not found in the pkey table\n", *pkey);
		return -ENOMEM;
	}
	memset(&pkey_tbl->tbl[i], 0, sizeof(*pkey));
	pkey_tbl->active--;

	/* unlock */
	return rc;
}

int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res,
			struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
			bool update)
{
	int i, free_idx, rc = 0;

	if (!pkey_tbl) {
		dev_err(&res->pdev->dev, "PKEY table not allocated\n");
		return -EINVAL;
	}

	/* Do we need a pkey_lock here? */
	if (pkey_tbl->active == pkey_tbl->max) {
		dev_err(&res->pdev->dev, "PKEY table is full\n");
		return -ENOMEM;
	}
	free_idx = pkey_tbl->max;
	for (i = 0; i < pkey_tbl->max; i++) {
		if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
			return -EALREADY;
		else if (!pkey_tbl->tbl[i] && free_idx == pkey_tbl->max)
			free_idx = i;
	}
	if (free_idx == pkey_tbl->max) {
		dev_err(&res->pdev->dev,
			"PKEY table is FULL but count is not MAX??\n");
		return -ENOMEM;
	}
	/* Add PKEY to the pkey_tbl */
	memcpy(&pkey_tbl->tbl[free_idx], pkey, sizeof(*pkey));
	pkey_tbl->active++;

	/* unlock */
	return rc;
}

/* AH */
int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
			 bool block)
{
	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
	struct cmdq_create_ah req;
	struct creq_create_ah_resp resp;
	u16 cmd_flags = 0;
	u32 temp32[4];
	u16 temp16[3];
	int rc;

	RCFW_CMD_PREP(req, CREATE_AH, cmd_flags);

	memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid));
	req.dgid[0] = cpu_to_le32(temp32[0]);
	req.dgid[1] = cpu_to_le32(temp32[1]);
	req.dgid[2] = cpu_to_le32(temp32[2]);
	req.dgid[3] = cpu_to_le32(temp32[3]);

	req.type = ah->nw_type;
	req.hop_limit = ah->hop_limit;
	req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]);
	req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label &
					CMDQ_CREATE_AH_FLOW_LABEL_MASK) |
					CMDQ_CREATE_AH_DEST_VLAN_ID_MASK);
	req.pd_id = cpu_to_le32(ah->pd->id);
	req.traffic_class = ah->traffic_class;

	/* MAC in network format */
	memcpy(temp16, ah->dmac, 6);
	req.dest_mac[0] = cpu_to_le16(temp16[0]);
	req.dest_mac[1] = cpu_to_le16(temp16[1]);
	req.dest_mac[2] = cpu_to_le16(temp16[2]);

	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
					  NULL, block);
	if (rc)
		return rc;

	ah->id = le32_to_cpu(resp.xid);
	return 0;
}

void bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
			   bool block)
{
	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
	struct cmdq_destroy_ah req;
	struct creq_destroy_ah_resp resp;
	u16 cmd_flags = 0;

	/* Clean up the AH table in the device */
	RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags);

	req.ah_cid = cpu_to_le32(ah->id);

	bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, NULL,
				     block);
}

/* MRW */
int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
{
	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
	struct cmdq_deallocate_key req;
	struct creq_deallocate_key_resp resp;
	u16 cmd_flags = 0;
	int rc;

	if (mrw->lkey == 0xFFFFFFFF) {
		dev_info(&res->pdev->dev, "SP: Free a reserved lkey MRW\n");
		return 0;
	}

	RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags);

	req.mrw_flags = mrw->type;

	if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
	    (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
	    (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
		req.key = cpu_to_le32(mrw->rkey);
	else
		req.key = cpu_to_le32(mrw->lkey);

	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
					  NULL, 0);
	if (rc)
		return rc;

	/* Free the qplib's MRW memory */
	if (mrw->hwq.max_elements)
		bnxt_qplib_free_hwq(res, &mrw->hwq);

	return 0;
}

int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
{
	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
	struct cmdq_allocate_mrw req;
	struct creq_allocate_mrw_resp resp;
	u16 cmd_flags = 0;
	unsigned long tmp;
	int rc;

	RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags);

	req.pd_id = cpu_to_le32(mrw->pd->id);
	req.mrw_flags = mrw->type;
	if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR &&
	     mrw->flags & BNXT_QPLIB_FR_PMR) ||
	    mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A ||
	    mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)
		req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY;
	tmp = (unsigned long)mrw;
	req.mrw_handle = cpu_to_le64(tmp);

	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
					  (void *)&resp, NULL, 0);
	if (rc)
		return rc;

	if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
	    (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
	    (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
		mrw->rkey = le32_to_cpu(resp.xid);
	else
		mrw->lkey = le32_to_cpu(resp.xid);
	return 0;
}

int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw,
			 bool block)
{
	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
	struct cmdq_deregister_mr req;
	struct creq_deregister_mr_resp resp;
	u16 cmd_flags = 0;
	int rc;

	RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags);

	req.lkey = cpu_to_le32(mrw->lkey);
	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
					  (void *)&resp, NULL, block);
	if (rc)
		return rc;

	/* Free the qplib's MR memory */
	if (mrw->hwq.max_elements) {
		mrw->va = 0;
		mrw->total_size = 0;
		bnxt_qplib_free_hwq(res, &mrw->hwq);
	}

	return 0;
}

int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
		      u64 *pbl_tbl, int num_pbls, bool block, u32 buf_pg_size)
{
	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
	struct bnxt_qplib_hwq_attr hwq_attr = {};
	struct bnxt_qplib_sg_info sginfo = {};
	struct creq_register_mr_resp resp;
	struct cmdq_register_mr req;
	int pg_ptrs, pages, i, rc;
	u16 cmd_flags = 0, level;
	dma_addr_t **pbl_ptr;
	u32 pg_size;

	if (num_pbls) {
		/* Allocate memory for the non-leaf pages to store buf ptrs.
		 * Non-leaf pages always uses system PAGE_SIZE
		 */
		pg_ptrs = roundup_pow_of_two(num_pbls);
		pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
		if (!pages)
			pages++;

		if (pages > MAX_PBL_LVL_1_PGS) {
			dev_err(&res->pdev->dev,
				"SP: Reg MR: pages requested (0x%x) exceeded max (0x%x)\n",
				pages, MAX_PBL_LVL_1_PGS);
			return -ENOMEM;
		}
		/* Free the hwq if it already exist, must be a rereg */
		if (mr->hwq.max_elements)
			bnxt_qplib_free_hwq(res, &mr->hwq);
		/* Use system PAGE_SIZE */
		hwq_attr.res = res;
		hwq_attr.depth = pages;
		hwq_attr.stride = PAGE_SIZE;
		hwq_attr.type = HWQ_TYPE_MR;
		hwq_attr.sginfo = &sginfo;
		hwq_attr.sginfo->npages = pages;
		hwq_attr.sginfo->pgsize = PAGE_SIZE;
		hwq_attr.sginfo->pgshft = PAGE_SHIFT;
		rc = bnxt_qplib_alloc_init_hwq(&mr->hwq, &hwq_attr);
		if (rc) {
			dev_err(&res->pdev->dev,
				"SP: Reg MR memory allocation failed\n");
			return -ENOMEM;
		}
		/* Write to the hwq */
		pbl_ptr = (dma_addr_t **)mr->hwq.pbl_ptr;
		for (i = 0; i < num_pbls; i++)
			pbl_ptr[PTR_PG(i)][PTR_IDX(i)] =
				(pbl_tbl[i] & PAGE_MASK) | PTU_PTE_VALID;
	}

	RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags);

	/* Configure the request */
	if (mr->hwq.level == PBL_LVL_MAX) {
		/* No PBL provided, just use system PAGE_SIZE */
		level = 0;
		req.pbl = 0;
		pg_size = PAGE_SIZE;
	} else {
		level = mr->hwq.level + 1;
		req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]);
	}
	pg_size = buf_pg_size ? buf_pg_size : PAGE_SIZE;
	req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) |
			       ((ilog2(pg_size) <<
				 CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) &
				CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK);
	req.log2_pbl_pg_size = cpu_to_le16(((ilog2(PAGE_SIZE) <<
				 CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_SFT) &
				CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_MASK));
	req.access = (mr->flags & 0xFFFF);
	req.va = cpu_to_le64(mr->va);
	req.key = cpu_to_le32(mr->lkey);
	req.mr_size = cpu_to_le64(mr->total_size);

	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
					  (void *)&resp, NULL, block);
	if (rc)
		goto fail;

	return 0;

fail:
	if (mr->hwq.max_elements)
		bnxt_qplib_free_hwq(res, &mr->hwq);
	return rc;
}

int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res,
					struct bnxt_qplib_frpl *frpl,
					int max_pg_ptrs)
{
	struct bnxt_qplib_hwq_attr hwq_attr = {};
	struct bnxt_qplib_sg_info sginfo = {};
	int pg_ptrs, pages, rc;

	/* Re-calculate the max to fit the HWQ allocation model */
	pg_ptrs = roundup_pow_of_two(max_pg_ptrs);
	pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
	if (!pages)
		pages++;

	if (pages > MAX_PBL_LVL_1_PGS)
		return -ENOMEM;

	sginfo.pgsize = PAGE_SIZE;
	sginfo.nopte = true;

	hwq_attr.res = res;
	hwq_attr.depth = pg_ptrs;
	hwq_attr.stride = PAGE_SIZE;
	hwq_attr.sginfo = &sginfo;
	hwq_attr.type = HWQ_TYPE_CTX;
	rc = bnxt_qplib_alloc_init_hwq(&frpl->hwq, &hwq_attr);
	if (!rc)
		frpl->max_pg_ptrs = pg_ptrs;

	return rc;
}

int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res,
				       struct bnxt_qplib_frpl *frpl)
{
	bnxt_qplib_free_hwq(res, &frpl->hwq);
	return 0;
}

int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids)
{
	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
	struct cmdq_map_tc_to_cos req;
	struct creq_map_tc_to_cos_resp resp;
	u16 cmd_flags = 0;

	RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags);
	req.cos0 = cpu_to_le16(cids[0]);
	req.cos1 = cpu_to_le16(cids[1]);

	return bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
						NULL, 0);
}

int bnxt_qplib_get_roce_stats(struct bnxt_qplib_rcfw *rcfw,
			      struct bnxt_qplib_roce_stats *stats)
{
	struct cmdq_query_roce_stats req;
	struct creq_query_roce_stats_resp resp;
	struct bnxt_qplib_rcfw_sbuf *sbuf;
	struct creq_query_roce_stats_resp_sb *sb;
	u16 cmd_flags = 0;
	int rc = 0;

	RCFW_CMD_PREP(req, QUERY_ROCE_STATS, cmd_flags);

	sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
	if (!sbuf) {
		dev_err(&rcfw->pdev->dev,
			"SP: QUERY_ROCE_STATS alloc side buffer failed\n");
		return -ENOMEM;
	}

	sb = sbuf->sb;
	req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
					  (void *)sbuf, 0);
	if (rc)
		goto bail;
	/* Extract the context from the side buffer */
	stats->to_retransmits = le64_to_cpu(sb->to_retransmits);
	stats->seq_err_naks_rcvd = le64_to_cpu(sb->seq_err_naks_rcvd);
	stats->max_retry_exceeded = le64_to_cpu(sb->max_retry_exceeded);
	stats->rnr_naks_rcvd = le64_to_cpu(sb->rnr_naks_rcvd);
	stats->missing_resp = le64_to_cpu(sb->missing_resp);
	stats->unrecoverable_err = le64_to_cpu(sb->unrecoverable_err);
	stats->bad_resp_err = le64_to_cpu(sb->bad_resp_err);
	stats->local_qp_op_err = le64_to_cpu(sb->local_qp_op_err);
	stats->local_protection_err = le64_to_cpu(sb->local_protection_err);
	stats->mem_mgmt_op_err = le64_to_cpu(sb->mem_mgmt_op_err);
	stats->remote_invalid_req_err = le64_to_cpu(sb->remote_invalid_req_err);
	stats->remote_access_err = le64_to_cpu(sb->remote_access_err);
	stats->remote_op_err = le64_to_cpu(sb->remote_op_err);
	stats->dup_req = le64_to_cpu(sb->dup_req);
	stats->res_exceed_max = le64_to_cpu(sb->res_exceed_max);
	stats->res_length_mismatch = le64_to_cpu(sb->res_length_mismatch);
	stats->res_exceeds_wqe = le64_to_cpu(sb->res_exceeds_wqe);
	stats->res_opcode_err = le64_to_cpu(sb->res_opcode_err);
	stats->res_rx_invalid_rkey = le64_to_cpu(sb->res_rx_invalid_rkey);
	stats->res_rx_domain_err = le64_to_cpu(sb->res_rx_domain_err);
	stats->res_rx_no_perm = le64_to_cpu(sb->res_rx_no_perm);
	stats->res_rx_range_err = le64_to_cpu(sb->res_rx_range_err);
	stats->res_tx_invalid_rkey = le64_to_cpu(sb->res_tx_invalid_rkey);
	stats->res_tx_domain_err = le64_to_cpu(sb->res_tx_domain_err);
	stats->res_tx_no_perm = le64_to_cpu(sb->res_tx_no_perm);
	stats->res_tx_range_err = le64_to_cpu(sb->res_tx_range_err);
	stats->res_irrq_oflow = le64_to_cpu(sb->res_irrq_oflow);
	stats->res_unsup_opcode = le64_to_cpu(sb->res_unsup_opcode);
	stats->res_unaligned_atomic = le64_to_cpu(sb->res_unaligned_atomic);
	stats->res_rem_inv_err = le64_to_cpu(sb->res_rem_inv_err);
	stats->res_mem_error = le64_to_cpu(sb->res_mem_error);
	stats->res_srq_err = le64_to_cpu(sb->res_srq_err);
	stats->res_cmp_err = le64_to_cpu(sb->res_cmp_err);
	stats->res_invalid_dup_rkey = le64_to_cpu(sb->res_invalid_dup_rkey);
	stats->res_wqe_format_err = le64_to_cpu(sb->res_wqe_format_err);
	stats->res_cq_load_err = le64_to_cpu(sb->res_cq_load_err);
	stats->res_srq_load_err = le64_to_cpu(sb->res_srq_load_err);
	stats->res_tx_pci_err = le64_to_cpu(sb->res_tx_pci_err);
	stats->res_rx_pci_err = le64_to_cpu(sb->res_rx_pci_err);
	if (!rcfw->init_oos_stats) {
		rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
		rcfw->init_oos_stats = 1;
	} else {
		stats->res_oos_drop_count +=
				(le64_to_cpu(sb->res_oos_drop_count) -
				 rcfw->oos_prev) & BNXT_QPLIB_OOS_COUNT_MASK;
		rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
	}

bail:
	bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
	return rc;
}