summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/qlogic/qed/qed_mcp.c
blob: 20d048cdcb8821bf8d18b644be42afcb1146a2b8 (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
/* QLogic qed NIC Driver
 * Copyright (c) 2015 QLogic Corporation
 *
 * This software is available 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.
 */

#include <linux/types.h>
#include <asm/byteorder.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/string.h>
#include "qed.h"
#include "qed_hsi.h"
#include "qed_hw.h"
#include "qed_mcp.h"
#include "qed_reg_addr.h"
#define CHIP_MCP_RESP_ITER_US 10

#define QED_DRV_MB_MAX_RETRIES	(500 * 1000)	/* Account for 5 sec */
#define QED_MCP_RESET_RETRIES	(50 * 1000)	/* Account for 500 msec */

#define DRV_INNER_WR(_p_hwfn, _p_ptt, _ptr, _offset, _val)	     \
	qed_wr(_p_hwfn, _p_ptt, (_p_hwfn->mcp_info->_ptr + _offset), \
	       _val)

#define DRV_INNER_RD(_p_hwfn, _p_ptt, _ptr, _offset) \
	qed_rd(_p_hwfn, _p_ptt, (_p_hwfn->mcp_info->_ptr + _offset))

#define DRV_MB_WR(_p_hwfn, _p_ptt, _field, _val)  \
	DRV_INNER_WR(p_hwfn, _p_ptt, drv_mb_addr, \
		     offsetof(struct public_drv_mb, _field), _val)

#define DRV_MB_RD(_p_hwfn, _p_ptt, _field)	   \
	DRV_INNER_RD(_p_hwfn, _p_ptt, drv_mb_addr, \
		     offsetof(struct public_drv_mb, _field))

#define PDA_COMP (((FW_MAJOR_VERSION) + (FW_MINOR_VERSION << 8)) << \
		  DRV_ID_PDA_COMP_VER_SHIFT)

#define MCP_BYTES_PER_MBIT_SHIFT 17

bool qed_mcp_is_init(struct qed_hwfn *p_hwfn)
{
	if (!p_hwfn->mcp_info || !p_hwfn->mcp_info->public_base)
		return false;
	return true;
}

void qed_mcp_cmd_port_init(struct qed_hwfn *p_hwfn,
			   struct qed_ptt *p_ptt)
{
	u32 addr = SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->public_base,
					PUBLIC_PORT);
	u32 mfw_mb_offsize = qed_rd(p_hwfn, p_ptt, addr);

	p_hwfn->mcp_info->port_addr = SECTION_ADDR(mfw_mb_offsize,
						   MFW_PORT(p_hwfn));
	DP_VERBOSE(p_hwfn, QED_MSG_SP,
		   "port_addr = 0x%x, port_id 0x%02x\n",
		   p_hwfn->mcp_info->port_addr, MFW_PORT(p_hwfn));
}

void qed_mcp_read_mb(struct qed_hwfn *p_hwfn,
		     struct qed_ptt *p_ptt)
{
	u32 length = MFW_DRV_MSG_MAX_DWORDS(p_hwfn->mcp_info->mfw_mb_length);
	u32 tmp, i;

	if (!p_hwfn->mcp_info->public_base)
		return;

	for (i = 0; i < length; i++) {
		tmp = qed_rd(p_hwfn, p_ptt,
			     p_hwfn->mcp_info->mfw_mb_addr +
			     (i << 2) + sizeof(u32));

		/* The MB data is actually BE; Need to force it to cpu */
		((u32 *)p_hwfn->mcp_info->mfw_mb_cur)[i] =
			be32_to_cpu((__force __be32)tmp);
	}
}

int qed_mcp_free(struct qed_hwfn *p_hwfn)
{
	if (p_hwfn->mcp_info) {
		kfree(p_hwfn->mcp_info->mfw_mb_cur);
		kfree(p_hwfn->mcp_info->mfw_mb_shadow);
	}
	kfree(p_hwfn->mcp_info);

	return 0;
}

static int qed_load_mcp_offsets(struct qed_hwfn *p_hwfn,
				struct qed_ptt *p_ptt)
{
	struct qed_mcp_info *p_info = p_hwfn->mcp_info;
	u32 drv_mb_offsize, mfw_mb_offsize;
	u32 mcp_pf_id = MCP_PF_ID(p_hwfn);

	p_info->public_base = qed_rd(p_hwfn, p_ptt, MISC_REG_SHARED_MEM_ADDR);
	if (!p_info->public_base)
		return 0;

	p_info->public_base |= GRCBASE_MCP;

	/* Calculate the driver and MFW mailbox address */
	drv_mb_offsize = qed_rd(p_hwfn, p_ptt,
				SECTION_OFFSIZE_ADDR(p_info->public_base,
						     PUBLIC_DRV_MB));
	p_info->drv_mb_addr = SECTION_ADDR(drv_mb_offsize, mcp_pf_id);
	DP_VERBOSE(p_hwfn, QED_MSG_SP,
		   "drv_mb_offsiz = 0x%x, drv_mb_addr = 0x%x mcp_pf_id = 0x%x\n",
		   drv_mb_offsize, p_info->drv_mb_addr, mcp_pf_id);

	/* Set the MFW MB address */
	mfw_mb_offsize = qed_rd(p_hwfn, p_ptt,
				SECTION_OFFSIZE_ADDR(p_info->public_base,
						     PUBLIC_MFW_MB));
	p_info->mfw_mb_addr = SECTION_ADDR(mfw_mb_offsize, mcp_pf_id);
	p_info->mfw_mb_length =	(u16)qed_rd(p_hwfn, p_ptt, p_info->mfw_mb_addr);

	/* Get the current driver mailbox sequence before sending
	 * the first command
	 */
	p_info->drv_mb_seq = DRV_MB_RD(p_hwfn, p_ptt, drv_mb_header) &
			     DRV_MSG_SEQ_NUMBER_MASK;

	/* Get current FW pulse sequence */
	p_info->drv_pulse_seq = DRV_MB_RD(p_hwfn, p_ptt, drv_pulse_mb) &
				DRV_PULSE_SEQ_MASK;

	p_info->mcp_hist = (u16)qed_rd(p_hwfn, p_ptt, MISCS_REG_GENERIC_POR_0);

	return 0;
}

int qed_mcp_cmd_init(struct qed_hwfn *p_hwfn,
		     struct qed_ptt *p_ptt)
{
	struct qed_mcp_info *p_info;
	u32 size;

	/* Allocate mcp_info structure */
	p_hwfn->mcp_info = kzalloc(sizeof(*p_hwfn->mcp_info), GFP_ATOMIC);
	if (!p_hwfn->mcp_info)
		goto err;
	p_info = p_hwfn->mcp_info;

	if (qed_load_mcp_offsets(p_hwfn, p_ptt) != 0) {
		DP_NOTICE(p_hwfn, "MCP is not initialized\n");
		/* Do not free mcp_info here, since public_base indicate that
		 * the MCP is not initialized
		 */
		return 0;
	}

	size = MFW_DRV_MSG_MAX_DWORDS(p_info->mfw_mb_length) * sizeof(u32);
	p_info->mfw_mb_cur = kzalloc(size, GFP_ATOMIC);
	p_info->mfw_mb_shadow =
		kzalloc(sizeof(u32) * MFW_DRV_MSG_MAX_DWORDS(
				p_info->mfw_mb_length), GFP_ATOMIC);
	if (!p_info->mfw_mb_shadow || !p_info->mfw_mb_addr)
		goto err;

	/* Initialize the MFW mutex */
	mutex_init(&p_info->mutex);

	return 0;

err:
	DP_NOTICE(p_hwfn, "Failed to allocate mcp memory\n");
	qed_mcp_free(p_hwfn);
	return -ENOMEM;
}

int qed_mcp_reset(struct qed_hwfn *p_hwfn,
		  struct qed_ptt *p_ptt)
{
	u32 seq = ++p_hwfn->mcp_info->drv_mb_seq;
	u8 delay = CHIP_MCP_RESP_ITER_US;
	u32 org_mcp_reset_seq, cnt = 0;
	int rc = 0;

	/* Set drv command along with the updated sequence */
	org_mcp_reset_seq = qed_rd(p_hwfn, p_ptt, MISCS_REG_GENERIC_POR_0);
	DRV_MB_WR(p_hwfn, p_ptt, drv_mb_header,
		  (DRV_MSG_CODE_MCP_RESET | seq));

	do {
		/* Wait for MFW response */
		udelay(delay);
		/* Give the FW up to 500 second (50*1000*10usec) */
	} while ((org_mcp_reset_seq == qed_rd(p_hwfn, p_ptt,
					      MISCS_REG_GENERIC_POR_0)) &&
		 (cnt++ < QED_MCP_RESET_RETRIES));

	if (org_mcp_reset_seq !=
	    qed_rd(p_hwfn, p_ptt, MISCS_REG_GENERIC_POR_0)) {
		DP_VERBOSE(p_hwfn, QED_MSG_SP,
			   "MCP was reset after %d usec\n", cnt * delay);
	} else {
		DP_ERR(p_hwfn, "Failed to reset MCP\n");
		rc = -EAGAIN;
	}

	return rc;
}

static int qed_do_mcp_cmd(struct qed_hwfn *p_hwfn,
			  struct qed_ptt *p_ptt,
			  u32 cmd,
			  u32 param,
			  u32 *o_mcp_resp,
			  u32 *o_mcp_param)
{
	u8 delay = CHIP_MCP_RESP_ITER_US;
	u32 seq, cnt = 1, actual_mb_seq;
	int rc = 0;

	/* Get actual driver mailbox sequence */
	actual_mb_seq = DRV_MB_RD(p_hwfn, p_ptt, drv_mb_header) &
			DRV_MSG_SEQ_NUMBER_MASK;

	/* Use MCP history register to check if MCP reset occurred between
	 * init time and now.
	 */
	if (p_hwfn->mcp_info->mcp_hist !=
	    qed_rd(p_hwfn, p_ptt, MISCS_REG_GENERIC_POR_0)) {
		DP_VERBOSE(p_hwfn, QED_MSG_SP, "Rereading MCP offsets\n");
		qed_load_mcp_offsets(p_hwfn, p_ptt);
		qed_mcp_cmd_port_init(p_hwfn, p_ptt);
	}
	seq = ++p_hwfn->mcp_info->drv_mb_seq;

	/* Set drv param */
	DRV_MB_WR(p_hwfn, p_ptt, drv_mb_param, param);

	/* Set drv command along with the updated sequence */
	DRV_MB_WR(p_hwfn, p_ptt, drv_mb_header, (cmd | seq));

	DP_VERBOSE(p_hwfn, QED_MSG_SP,
		   "wrote command (%x) to MFW MB param 0x%08x\n",
		   (cmd | seq), param);

	do {
		/* Wait for MFW response */
		udelay(delay);
		*o_mcp_resp = DRV_MB_RD(p_hwfn, p_ptt, fw_mb_header);

		/* Give the FW up to 5 second (500*10ms) */
	} while ((seq != (*o_mcp_resp & FW_MSG_SEQ_NUMBER_MASK)) &&
		 (cnt++ < QED_DRV_MB_MAX_RETRIES));

	DP_VERBOSE(p_hwfn, QED_MSG_SP,
		   "[after %d ms] read (%x) seq is (%x) from FW MB\n",
		   cnt * delay, *o_mcp_resp, seq);

	/* Is this a reply to our command? */
	if (seq == (*o_mcp_resp & FW_MSG_SEQ_NUMBER_MASK)) {
		*o_mcp_resp &= FW_MSG_CODE_MASK;
		/* Get the MCP param */
		*o_mcp_param = DRV_MB_RD(p_hwfn, p_ptt, fw_mb_param);
	} else {
		/* FW BUG! */
		DP_ERR(p_hwfn, "MFW failed to respond!\n");
		*o_mcp_resp = 0;
		rc = -EAGAIN;
	}
	return rc;
}

int qed_mcp_cmd(struct qed_hwfn *p_hwfn,
		struct qed_ptt *p_ptt,
		u32 cmd,
		u32 param,
		u32 *o_mcp_resp,
		u32 *o_mcp_param)
{
	int rc = 0;

	/* MCP not initialized */
	if (!qed_mcp_is_init(p_hwfn)) {
		DP_NOTICE(p_hwfn, "MFW is not initialized !\n");
		return -EBUSY;
	}

	/* Lock Mutex to ensure only single thread is
	 * accessing the MCP at one time
	 */
	mutex_lock(&p_hwfn->mcp_info->mutex);
	rc = qed_do_mcp_cmd(p_hwfn, p_ptt, cmd, param,
			    o_mcp_resp, o_mcp_param);
	/* Release Mutex */
	mutex_unlock(&p_hwfn->mcp_info->mutex);

	return rc;
}

static void qed_mcp_set_drv_ver(struct qed_dev *cdev,
				struct qed_hwfn *p_hwfn,
				struct qed_ptt *p_ptt)
{
	u32 i;

	/* Copy version string to MCP */
	for (i = 0; i < MCP_DRV_VER_STR_SIZE_DWORD; i++)
		DRV_MB_WR(p_hwfn, p_ptt, union_data.ver_str[i],
			  *(u32 *)&cdev->ver_str[i * sizeof(u32)]);
}

int qed_mcp_load_req(struct qed_hwfn *p_hwfn,
		     struct qed_ptt *p_ptt,
		     u32 *p_load_code)
{
	struct qed_dev *cdev = p_hwfn->cdev;
	u32 param;
	int rc;

	if (!qed_mcp_is_init(p_hwfn)) {
		DP_NOTICE(p_hwfn, "MFW is not initialized !\n");
		return -EBUSY;
	}

	/* Save driver's version to shmem */
	qed_mcp_set_drv_ver(cdev, p_hwfn, p_ptt);

	DP_VERBOSE(p_hwfn, QED_MSG_SP, "fw_seq 0x%08x, drv_pulse 0x%x\n",
		   p_hwfn->mcp_info->drv_mb_seq,
		   p_hwfn->mcp_info->drv_pulse_seq);

	/* Load Request */
	rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_LOAD_REQ,
			 (PDA_COMP | DRV_ID_MCP_HSI_VER_CURRENT |
			  cdev->drv_type),
			 p_load_code, &param);

	/* if mcp fails to respond we must abort */
	if (rc) {
		DP_ERR(p_hwfn, "MCP response failure, aborting\n");
		return rc;
	}

	/* If MFW refused (e.g. other port is in diagnostic mode) we
	 * must abort. This can happen in the following cases:
	 * - Other port is in diagnostic mode
	 * - Previously loaded function on the engine is not compliant with
	 *   the requester.
	 * - MFW cannot cope with the requester's DRV_MFW_HSI_VERSION.
	 *      -
	 */
	if (!(*p_load_code) ||
	    ((*p_load_code) == FW_MSG_CODE_DRV_LOAD_REFUSED_HSI) ||
	    ((*p_load_code) == FW_MSG_CODE_DRV_LOAD_REFUSED_PDA) ||
	    ((*p_load_code) == FW_MSG_CODE_DRV_LOAD_REFUSED_DIAG)) {
		DP_ERR(p_hwfn, "MCP refused load request, aborting\n");
		return -EBUSY;
	}

	return 0;
}

static void qed_mcp_handle_link_change(struct qed_hwfn *p_hwfn,
				       struct qed_ptt *p_ptt,
				       bool b_reset)
{
	struct qed_mcp_link_state *p_link;
	u32 status = 0;

	p_link = &p_hwfn->mcp_info->link_output;
	memset(p_link, 0, sizeof(*p_link));
	if (!b_reset) {
		status = qed_rd(p_hwfn, p_ptt,
				p_hwfn->mcp_info->port_addr +
				offsetof(struct public_port, link_status));
		DP_VERBOSE(p_hwfn, (NETIF_MSG_LINK | QED_MSG_SP),
			   "Received link update [0x%08x] from mfw [Addr 0x%x]\n",
			   status,
			   (u32)(p_hwfn->mcp_info->port_addr +
				 offsetof(struct public_port,
					  link_status)));
	} else {
		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
			   "Resetting link indications\n");
		return;
	}

	p_link->link_up = !!(status & LINK_STATUS_LINK_UP);

	p_link->full_duplex = true;
	switch ((status & LINK_STATUS_SPEED_AND_DUPLEX_MASK)) {
	case LINK_STATUS_SPEED_AND_DUPLEX_100G:
		p_link->speed = 100000;
		break;
	case LINK_STATUS_SPEED_AND_DUPLEX_50G:
		p_link->speed = 50000;
		break;
	case LINK_STATUS_SPEED_AND_DUPLEX_40G:
		p_link->speed = 40000;
		break;
	case LINK_STATUS_SPEED_AND_DUPLEX_25G:
		p_link->speed = 25000;
		break;
	case LINK_STATUS_SPEED_AND_DUPLEX_20G:
		p_link->speed = 20000;
		break;
	case LINK_STATUS_SPEED_AND_DUPLEX_10G:
		p_link->speed = 10000;
		break;
	case LINK_STATUS_SPEED_AND_DUPLEX_1000THD:
		p_link->full_duplex = false;
	/* Fall-through */
	case LINK_STATUS_SPEED_AND_DUPLEX_1000TFD:
		p_link->speed = 1000;
		break;
	default:
		p_link->speed = 0;
	}

	/* Correct speed according to bandwidth allocation */
	if (p_hwfn->mcp_info->func_info.bandwidth_max && p_link->speed) {
		p_link->speed = p_link->speed *
				p_hwfn->mcp_info->func_info.bandwidth_max /
				100;
		qed_init_pf_rl(p_hwfn, p_ptt, p_hwfn->rel_pf_id,
			       p_link->speed);
		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
			   "Configured MAX bandwidth to be %08x Mb/sec\n",
			   p_link->speed);
	}

	p_link->an = !!(status & LINK_STATUS_AUTO_NEGOTIATE_ENABLED);
	p_link->an_complete = !!(status &
				 LINK_STATUS_AUTO_NEGOTIATE_COMPLETE);
	p_link->parallel_detection = !!(status &
					LINK_STATUS_PARALLEL_DETECTION_USED);
	p_link->pfc_enabled = !!(status & LINK_STATUS_PFC_ENABLED);

	p_link->partner_adv_speed |=
		(status & LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE) ?
		QED_LINK_PARTNER_SPEED_1G_FD : 0;
	p_link->partner_adv_speed |=
		(status & LINK_STATUS_LINK_PARTNER_1000THD_CAPABLE) ?
		QED_LINK_PARTNER_SPEED_1G_HD : 0;
	p_link->partner_adv_speed |=
		(status & LINK_STATUS_LINK_PARTNER_10G_CAPABLE) ?
		QED_LINK_PARTNER_SPEED_10G : 0;
	p_link->partner_adv_speed |=
		(status & LINK_STATUS_LINK_PARTNER_20G_CAPABLE) ?
		QED_LINK_PARTNER_SPEED_20G : 0;
	p_link->partner_adv_speed |=
		(status & LINK_STATUS_LINK_PARTNER_40G_CAPABLE) ?
		QED_LINK_PARTNER_SPEED_40G : 0;
	p_link->partner_adv_speed |=
		(status & LINK_STATUS_LINK_PARTNER_50G_CAPABLE) ?
		QED_LINK_PARTNER_SPEED_50G : 0;
	p_link->partner_adv_speed |=
		(status & LINK_STATUS_LINK_PARTNER_100G_CAPABLE) ?
		QED_LINK_PARTNER_SPEED_100G : 0;

	p_link->partner_tx_flow_ctrl_en =
		!!(status & LINK_STATUS_TX_FLOW_CONTROL_ENABLED);
	p_link->partner_rx_flow_ctrl_en =
		!!(status & LINK_STATUS_RX_FLOW_CONTROL_ENABLED);

	switch (status & LINK_STATUS_LINK_PARTNER_FLOW_CONTROL_MASK) {
	case LINK_STATUS_LINK_PARTNER_SYMMETRIC_PAUSE:
		p_link->partner_adv_pause = QED_LINK_PARTNER_SYMMETRIC_PAUSE;
		break;
	case LINK_STATUS_LINK_PARTNER_ASYMMETRIC_PAUSE:
		p_link->partner_adv_pause = QED_LINK_PARTNER_ASYMMETRIC_PAUSE;
		break;
	case LINK_STATUS_LINK_PARTNER_BOTH_PAUSE:
		p_link->partner_adv_pause = QED_LINK_PARTNER_BOTH_PAUSE;
		break;
	default:
		p_link->partner_adv_pause = 0;
	}

	p_link->sfp_tx_fault = !!(status & LINK_STATUS_SFP_TX_FAULT);

	qed_link_update(p_hwfn);
}

int qed_mcp_set_link(struct qed_hwfn *p_hwfn,
		     struct qed_ptt *p_ptt,
		     bool b_up)
{
	struct qed_mcp_link_params *params = &p_hwfn->mcp_info->link_input;
	u32 param = 0, reply = 0, cmd;
	struct pmm_phy_cfg phy_cfg;
	int rc = 0;
	u32 i;

	if (!qed_mcp_is_init(p_hwfn)) {
		DP_NOTICE(p_hwfn, "MFW is not initialized !\n");
		return -EBUSY;
	}

	/* Set the shmem configuration according to params */
	memset(&phy_cfg, 0, sizeof(phy_cfg));
	cmd = b_up ? DRV_MSG_CODE_INIT_PHY : DRV_MSG_CODE_LINK_RESET;
	if (!params->speed.autoneg)
		phy_cfg.speed = params->speed.forced_speed;
	phy_cfg.pause |= (params->pause.autoneg) ? PMM_PAUSE_AUTONEG : 0;
	phy_cfg.pause |= (params->pause.forced_rx) ? PMM_PAUSE_RX : 0;
	phy_cfg.pause |= (params->pause.forced_tx) ? PMM_PAUSE_TX : 0;
	phy_cfg.adv_speed = params->speed.advertised_speeds;
	phy_cfg.loopback_mode = params->loopback_mode;

	/* Write the requested configuration to shmem */
	for (i = 0; i < sizeof(phy_cfg); i += 4)
		qed_wr(p_hwfn, p_ptt,
		       p_hwfn->mcp_info->drv_mb_addr +
		       offsetof(struct public_drv_mb, union_data) + i,
		       ((u32 *)&phy_cfg)[i >> 2]);

	if (b_up) {
		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
			   "Configuring Link: Speed 0x%08x, Pause 0x%08x, adv_speed 0x%08x, loopback 0x%08x, features 0x%08x\n",
			   phy_cfg.speed,
			   phy_cfg.pause,
			   phy_cfg.adv_speed,
			   phy_cfg.loopback_mode,
			   phy_cfg.feature_config_flags);
	} else {
		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
			   "Resetting link\n");
	}

	DP_VERBOSE(p_hwfn, QED_MSG_SP, "fw_seq 0x%08x, drv_pulse 0x%x\n",
		   p_hwfn->mcp_info->drv_mb_seq,
		   p_hwfn->mcp_info->drv_pulse_seq);

	/* Load Request */
	rc = qed_mcp_cmd(p_hwfn, p_ptt, cmd, 0, &reply, &param);

	/* if mcp fails to respond we must abort */
	if (rc) {
		DP_ERR(p_hwfn, "MCP response failure, aborting\n");
		return rc;
	}

	/* Reset the link status if needed */
	if (!b_up)
		qed_mcp_handle_link_change(p_hwfn, p_ptt, true);

	return 0;
}

int qed_mcp_handle_events(struct qed_hwfn *p_hwfn,
			  struct qed_ptt *p_ptt)
{
	struct qed_mcp_info *info = p_hwfn->mcp_info;
	int rc = 0;
	bool found = false;
	u16 i;

	DP_VERBOSE(p_hwfn, QED_MSG_SP, "Received message from MFW\n");

	/* Read Messages from MFW */
	qed_mcp_read_mb(p_hwfn, p_ptt);

	/* Compare current messages to old ones */
	for (i = 0; i < info->mfw_mb_length; i++) {
		if (info->mfw_mb_cur[i] == info->mfw_mb_shadow[i])
			continue;

		found = true;

		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
			   "Msg [%d] - old CMD 0x%02x, new CMD 0x%02x\n",
			   i, info->mfw_mb_shadow[i], info->mfw_mb_cur[i]);

		switch (i) {
		case MFW_DRV_MSG_LINK_CHANGE:
			qed_mcp_handle_link_change(p_hwfn, p_ptt, false);
			break;
		default:
			DP_NOTICE(p_hwfn, "Unimplemented MFW message %d\n", i);
			rc = -EINVAL;
		}
	}

	/* ACK everything */
	for (i = 0; i < MFW_DRV_MSG_MAX_DWORDS(info->mfw_mb_length); i++) {
		__be32 val = cpu_to_be32(((u32 *)info->mfw_mb_cur)[i]);

		/* MFW expect answer in BE, so we force write in that format */
		qed_wr(p_hwfn, p_ptt,
		       info->mfw_mb_addr + sizeof(u32) +
		       MFW_DRV_MSG_MAX_DWORDS(info->mfw_mb_length) *
		       sizeof(u32) + i * sizeof(u32),
		       (__force u32)val);
	}

	if (!found) {
		DP_NOTICE(p_hwfn,
			  "Received an MFW message indication but no new message!\n");
		rc = -EINVAL;
	}

	/* Copy the new mfw messages into the shadow */
	memcpy(info->mfw_mb_shadow, info->mfw_mb_cur, info->mfw_mb_length);

	return rc;
}

int qed_mcp_get_mfw_ver(struct qed_dev *cdev,
			u32 *p_mfw_ver)
{
	struct qed_hwfn *p_hwfn = &cdev->hwfns[0];
	struct qed_ptt *p_ptt;
	u32 global_offsize;

	p_ptt = qed_ptt_acquire(p_hwfn);
	if (!p_ptt)
		return -EBUSY;

	global_offsize = qed_rd(p_hwfn, p_ptt,
				SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->
						     public_base,
						     PUBLIC_GLOBAL));
	*p_mfw_ver = qed_rd(p_hwfn, p_ptt,
			    SECTION_ADDR(global_offsize, 0) +
			    offsetof(struct public_global, mfw_ver));

	qed_ptt_release(p_hwfn, p_ptt);

	return 0;
}

int qed_mcp_get_media_type(struct qed_dev *cdev,
			   u32 *p_media_type)
{
	struct qed_hwfn *p_hwfn = &cdev->hwfns[0];
	struct qed_ptt  *p_ptt;

	if (!qed_mcp_is_init(p_hwfn)) {
		DP_NOTICE(p_hwfn, "MFW is not initialized !\n");
		return -EBUSY;
	}

	*p_media_type = MEDIA_UNSPECIFIED;

	p_ptt = qed_ptt_acquire(p_hwfn);
	if (!p_ptt)
		return -EBUSY;

	*p_media_type = qed_rd(p_hwfn, p_ptt, p_hwfn->mcp_info->port_addr +
			       offsetof(struct public_port, media_type));

	qed_ptt_release(p_hwfn, p_ptt);

	return 0;
}

static u32 qed_mcp_get_shmem_func(struct qed_hwfn *p_hwfn,
				  struct qed_ptt *p_ptt,
				  struct public_func *p_data,
				  int pfid)
{
	u32 addr = SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->public_base,
					PUBLIC_FUNC);
	u32 mfw_path_offsize = qed_rd(p_hwfn, p_ptt, addr);
	u32 func_addr = SECTION_ADDR(mfw_path_offsize, pfid);
	u32 i, size;

	memset(p_data, 0, sizeof(*p_data));

	size = min_t(u32, sizeof(*p_data),
		     QED_SECTION_SIZE(mfw_path_offsize));
	for (i = 0; i < size / sizeof(u32); i++)
		((u32 *)p_data)[i] = qed_rd(p_hwfn, p_ptt,
					    func_addr + (i << 2));

	return size;
}

static int
qed_mcp_get_shmem_proto(struct qed_hwfn *p_hwfn,
			struct public_func *p_info,
			enum qed_pci_personality *p_proto)
{
	int rc = 0;

	switch (p_info->config & FUNC_MF_CFG_PROTOCOL_MASK) {
	case FUNC_MF_CFG_PROTOCOL_ETHERNET:
		*p_proto = QED_PCI_ETH;
		break;
	default:
		rc = -EINVAL;
	}

	return rc;
}

int qed_mcp_fill_shmem_func_info(struct qed_hwfn *p_hwfn,
				 struct qed_ptt *p_ptt)
{
	struct qed_mcp_function_info *info;
	struct public_func shmem_info;

	qed_mcp_get_shmem_func(p_hwfn, p_ptt, &shmem_info,
			       MCP_PF_ID(p_hwfn));
	info = &p_hwfn->mcp_info->func_info;

	info->pause_on_host = (shmem_info.config &
			       FUNC_MF_CFG_PAUSE_ON_HOST_RING) ? 1 : 0;

	if (qed_mcp_get_shmem_proto(p_hwfn, &shmem_info,
				    &info->protocol)) {
		DP_ERR(p_hwfn, "Unknown personality %08x\n",
		       (u32)(shmem_info.config & FUNC_MF_CFG_PROTOCOL_MASK));
		return -EINVAL;
	}

	if (p_hwfn->cdev->mf_mode != SF) {
		info->bandwidth_min = (shmem_info.config &
				       FUNC_MF_CFG_MIN_BW_MASK) >>
				      FUNC_MF_CFG_MIN_BW_SHIFT;
		if (info->bandwidth_min < 1 || info->bandwidth_min > 100) {
			DP_INFO(p_hwfn,
				"bandwidth minimum out of bounds [%02x]. Set to 1\n",
				info->bandwidth_min);
			info->bandwidth_min = 1;
		}

		info->bandwidth_max = (shmem_info.config &
				       FUNC_MF_CFG_MAX_BW_MASK) >>
				      FUNC_MF_CFG_MAX_BW_SHIFT;
		if (info->bandwidth_max < 1 || info->bandwidth_max > 100) {
			DP_INFO(p_hwfn,
				"bandwidth maximum out of bounds [%02x]. Set to 100\n",
				info->bandwidth_max);
			info->bandwidth_max = 100;
		}
	}

	if (shmem_info.mac_upper || shmem_info.mac_lower) {
		info->mac[0] = (u8)(shmem_info.mac_upper >> 8);
		info->mac[1] = (u8)(shmem_info.mac_upper);
		info->mac[2] = (u8)(shmem_info.mac_lower >> 24);
		info->mac[3] = (u8)(shmem_info.mac_lower >> 16);
		info->mac[4] = (u8)(shmem_info.mac_lower >> 8);
		info->mac[5] = (u8)(shmem_info.mac_lower);
	} else {
		DP_NOTICE(p_hwfn, "MAC is 0 in shmem\n");
	}

	info->wwn_port = (u64)shmem_info.fcoe_wwn_port_name_upper |
			 (((u64)shmem_info.fcoe_wwn_port_name_lower) << 32);
	info->wwn_node = (u64)shmem_info.fcoe_wwn_node_name_upper |
			 (((u64)shmem_info.fcoe_wwn_node_name_lower) << 32);

	info->ovlan = (u16)(shmem_info.ovlan_stag & FUNC_MF_CFG_OV_STAG_MASK);

	DP_VERBOSE(p_hwfn, (QED_MSG_SP | NETIF_MSG_IFUP),
		   "Read configuration from shmem: pause_on_host %02x protocol %02x BW [%02x - %02x] MAC %02x:%02x:%02x:%02x:%02x:%02x wwn port %llx node %llx ovlan %04x\n",
		info->pause_on_host, info->protocol,
		info->bandwidth_min, info->bandwidth_max,
		info->mac[0], info->mac[1], info->mac[2],
		info->mac[3], info->mac[4], info->mac[5],
		info->wwn_port, info->wwn_node, info->ovlan);

	return 0;
}

struct qed_mcp_link_params
*qed_mcp_get_link_params(struct qed_hwfn *p_hwfn)
{
	if (!p_hwfn || !p_hwfn->mcp_info)
		return NULL;
	return &p_hwfn->mcp_info->link_input;
}

struct qed_mcp_link_state
*qed_mcp_get_link_state(struct qed_hwfn *p_hwfn)
{
	if (!p_hwfn || !p_hwfn->mcp_info)
		return NULL;
	return &p_hwfn->mcp_info->link_output;
}

struct qed_mcp_link_capabilities
*qed_mcp_get_link_capabilities(struct qed_hwfn *p_hwfn)
{
	if (!p_hwfn || !p_hwfn->mcp_info)
		return NULL;
	return &p_hwfn->mcp_info->link_capabilities;
}

int qed_mcp_drain(struct qed_hwfn *p_hwfn,
		  struct qed_ptt *p_ptt)
{
	u32 resp = 0, param = 0;
	int rc;

	rc = qed_mcp_cmd(p_hwfn, p_ptt,
			 DRV_MSG_CODE_NIG_DRAIN, 100,
			 &resp, &param);

	/* Wait for the drain to complete before returning */
	msleep(120);

	return rc;
}

int qed_mcp_get_flash_size(struct qed_hwfn *p_hwfn,
			   struct qed_ptt *p_ptt,
			   u32 *p_flash_size)
{
	u32 flash_size;

	flash_size = qed_rd(p_hwfn, p_ptt, MCP_REG_NVM_CFG4);
	flash_size = (flash_size & MCP_REG_NVM_CFG4_FLASH_SIZE) >>
		      MCP_REG_NVM_CFG4_FLASH_SIZE_SHIFT;
	flash_size = (1 << (flash_size + MCP_BYTES_PER_MBIT_SHIFT));

	*p_flash_size = flash_size;

	return 0;
}

int
qed_mcp_send_drv_version(struct qed_hwfn *p_hwfn,
			 struct qed_ptt *p_ptt,
			 struct qed_mcp_drv_version *p_ver)
{
	int rc = 0;
	u32 param = 0, reply = 0, i;

	if (!qed_mcp_is_init(p_hwfn)) {
		DP_NOTICE(p_hwfn, "MFW is not initialized !\n");
		return -EBUSY;
	}

	DRV_MB_WR(p_hwfn, p_ptt, union_data.drv_version.version,
		  p_ver->version);
	/* Copy version string to shmem */
	for (i = 0; i < (MCP_DRV_VER_STR_SIZE - 4) / 4; i++) {
		DRV_MB_WR(p_hwfn, p_ptt,
			  union_data.drv_version.name[i * sizeof(u32)],
			  *(u32 *)&p_ver->name[i * sizeof(u32)]);
	}

	rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_VERSION, 0, &reply,
			 &param);
	if (rc) {
		DP_ERR(p_hwfn, "MCP response failure, aborting\n");
		return rc;
	}

	return 0;
}