summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/intel/ice/ice_fw_update.c
blob: 2702a0da5c3e4673175b69e5c882809d8b494fd5 (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
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2018-2019, Intel Corporation. */

#include <linux/unaligned.h>
#include <linux/uuid.h>
#include <linux/crc32.h>
#include <linux/pldmfw.h>
#include "ice.h"
#include "ice_fw_update.h"

struct ice_fwu_priv {
	struct pldmfw context;

	struct ice_pf *pf;
	struct netlink_ext_ack *extack;

	/* Track which NVM banks to activate at the end of the update */
	u8 activate_flags;

	/* Track the firmware response of the required reset to complete the
	 * flash update.
	 *
	 * 0 - ICE_AQC_NVM_POR_FLAG - A full power on is required
	 * 1 - ICE_AQC_NVM_PERST_FLAG - A cold PCIe reset is required
	 * 2 - ICE_AQC_NVM_EMPR_FLAG - An EMP reset is required
	 */
	u8 reset_level;

	/* Track if EMP reset is available */
	u8 emp_reset_available;
};

/**
 * ice_send_package_data - Send record package data to firmware
 * @context: PLDM fw update structure
 * @data: pointer to the package data
 * @length: length of the package data
 *
 * Send a copy of the package data associated with the PLDM record matching
 * this device to the firmware.
 *
 * Note that this function sends an AdminQ command that will fail unless the
 * NVM resource has been acquired.
 *
 * Returns: zero on success, or a negative error code on failure.
 */
static int
ice_send_package_data(struct pldmfw *context, const u8 *data, u16 length)
{
	struct ice_fwu_priv *priv = container_of(context, struct ice_fwu_priv, context);
	struct netlink_ext_ack *extack = priv->extack;
	struct device *dev = context->dev;
	struct ice_pf *pf = priv->pf;
	struct ice_hw *hw = &pf->hw;
	u8 *package_data;
	int status;

	dev_dbg(dev, "Sending PLDM record package data to firmware\n");

	package_data = kmemdup(data, length, GFP_KERNEL);
	if (!package_data)
		return -ENOMEM;

	status = ice_nvm_set_pkg_data(hw, false, package_data, length, NULL);

	kfree(package_data);

	if (status) {
		dev_err(dev, "Failed to send record package data to firmware, err %d aq_err %s\n",
			status, ice_aq_str(hw->adminq.sq_last_status));
		NL_SET_ERR_MSG_MOD(extack, "Failed to record package data to firmware");
		return -EIO;
	}

	return 0;
}

/**
 * ice_check_component_response - Report firmware response to a component
 * @pf: device private data structure
 * @id: component id being checked
 * @response: indicates whether this component can be updated
 * @code: code indicating reason for response
 * @extack: netlink extended ACK structure
 *
 * Check whether firmware indicates if this component can be updated. Report
 * a suitable error message over the netlink extended ACK if the component
 * cannot be updated.
 *
 * Returns: zero if the component can be updated, or -ECANCELED of the
 * firmware indicates the component cannot be updated.
 */
static int
ice_check_component_response(struct ice_pf *pf, u16 id, u8 response, u8 code,
			     struct netlink_ext_ack *extack)
{
	struct device *dev = ice_pf_to_dev(pf);
	const char *component;

	switch (id) {
	case NVM_COMP_ID_OROM:
		component = "fw.undi";
		break;
	case NVM_COMP_ID_NVM:
		component = "fw.mgmt";
		break;
	case NVM_COMP_ID_NETLIST:
		component = "fw.netlist";
		break;
	default:
		WARN(1, "Unexpected unknown component identifier 0x%02x", id);
		return -EINVAL;
	}

	dev_dbg(dev, "%s: firmware response 0x%x, code 0x%x\n",
		component, response, code);

	switch (response) {
	case ICE_AQ_NVM_PASS_COMP_CAN_BE_UPDATED:
		/* firmware indicated this update is good to proceed */
		return 0;
	case ICE_AQ_NVM_PASS_COMP_CAN_MAY_BE_UPDATEABLE:
		dev_warn(dev, "firmware recommends not updating %s, as it may result in a downgrade. continuing anyways\n", component);
		return 0;
	case ICE_AQ_NVM_PASS_COMP_CAN_NOT_BE_UPDATED:
		dev_info(dev, "firmware has rejected updating %s\n", component);
		break;
	}

	switch (code) {
	case ICE_AQ_NVM_PASS_COMP_STAMP_IDENTICAL_CODE:
		dev_err(dev, "Component comparison stamp for %s is identical to the running image\n",
			component);
		NL_SET_ERR_MSG_MOD(extack, "Component comparison stamp is identical to running image");
		break;
	case ICE_AQ_NVM_PASS_COMP_STAMP_LOWER:
		dev_err(dev, "Component comparison stamp for %s is lower than the running image\n",
			component);
		NL_SET_ERR_MSG_MOD(extack, "Component comparison stamp is lower than running image");
		break;
	case ICE_AQ_NVM_PASS_COMP_INVALID_STAMP_CODE:
		dev_err(dev, "Component comparison stamp for %s is invalid\n",
			component);
		NL_SET_ERR_MSG_MOD(extack, "Component comparison stamp is invalid");
		break;
	case ICE_AQ_NVM_PASS_COMP_CONFLICT_CODE:
		dev_err(dev, "%s conflicts with a previous component table\n",
			component);
		NL_SET_ERR_MSG_MOD(extack, "Component table conflict occurred");
		break;
	case ICE_AQ_NVM_PASS_COMP_PRE_REQ_NOT_MET_CODE:
		dev_err(dev, "Pre-requisites for component %s have not been met\n",
			component);
		NL_SET_ERR_MSG_MOD(extack, "Component pre-requisites not met");
		break;
	case ICE_AQ_NVM_PASS_COMP_NOT_SUPPORTED_CODE:
		dev_err(dev, "%s is not a supported component\n",
			component);
		NL_SET_ERR_MSG_MOD(extack, "Component not supported");
		break;
	case ICE_AQ_NVM_PASS_COMP_CANNOT_DOWNGRADE_CODE:
		dev_err(dev, "Security restrictions prevent %s from being downgraded\n",
			component);
		NL_SET_ERR_MSG_MOD(extack, "Component cannot be downgraded");
		break;
	case ICE_AQ_NVM_PASS_COMP_INCOMPLETE_IMAGE_CODE:
		dev_err(dev, "Received an incomplete component image for %s\n",
			component);
		NL_SET_ERR_MSG_MOD(extack, "Incomplete component image");
		break;
	case ICE_AQ_NVM_PASS_COMP_VER_STR_IDENTICAL_CODE:
		dev_err(dev, "Component version for %s is identical to the running image\n",
			component);
		NL_SET_ERR_MSG_MOD(extack, "Component version is identical to running image");
		break;
	case ICE_AQ_NVM_PASS_COMP_VER_STR_LOWER_CODE:
		dev_err(dev, "Component version for %s is lower than the running image\n",
			component);
		NL_SET_ERR_MSG_MOD(extack, "Component version is lower than the running image");
		break;
	default:
		dev_err(dev, "Unexpected response code 0x02%x for %s\n",
			code, component);
		NL_SET_ERR_MSG_MOD(extack, "Received unexpected response code from firmware");
		break;
	}

	return -ECANCELED;
}

/**
 * ice_send_component_table - Send PLDM component table to firmware
 * @context: PLDM fw update structure
 * @component: the component to process
 * @transfer_flag: relative transfer order of this component
 *
 * Read relevant data from the component and forward it to the device
 * firmware. Check the response to determine if the firmware indicates that
 * the update can proceed.
 *
 * This function sends AdminQ commands related to the NVM, and assumes that
 * the NVM resource has been acquired.
 *
 * Returns: zero on success, or a negative error code on failure.
 */
static int
ice_send_component_table(struct pldmfw *context, struct pldmfw_component *component,
			 u8 transfer_flag)
{
	struct ice_fwu_priv *priv = container_of(context, struct ice_fwu_priv, context);
	struct netlink_ext_ack *extack = priv->extack;
	struct ice_aqc_nvm_comp_tbl *comp_tbl;
	u8 comp_response, comp_response_code;
	struct device *dev = context->dev;
	struct ice_pf *pf = priv->pf;
	struct ice_hw *hw = &pf->hw;
	size_t length;
	int status;

	switch (component->identifier) {
	case NVM_COMP_ID_OROM:
	case NVM_COMP_ID_NVM:
	case NVM_COMP_ID_NETLIST:
		break;
	default:
		dev_err(dev, "Unable to update due to a firmware component with unknown ID %u\n",
			component->identifier);
		NL_SET_ERR_MSG_MOD(extack, "Unable to update due to unknown firmware component");
		return -EOPNOTSUPP;
	}

	length = struct_size(comp_tbl, cvs, component->version_len);
	comp_tbl = kzalloc(length, GFP_KERNEL);
	if (!comp_tbl)
		return -ENOMEM;

	comp_tbl->comp_class = cpu_to_le16(component->classification);
	comp_tbl->comp_id = cpu_to_le16(component->identifier);
	comp_tbl->comp_class_idx = FWU_COMP_CLASS_IDX_NOT_USE;
	comp_tbl->comp_cmp_stamp = cpu_to_le32(component->comparison_stamp);
	comp_tbl->cvs_type = component->version_type;
	comp_tbl->cvs_len = component->version_len;
	memcpy(comp_tbl->cvs, component->version_string, component->version_len);

	dev_dbg(dev, "Sending component table to firmware:\n");

	status = ice_nvm_pass_component_tbl(hw, (u8 *)comp_tbl, length,
					    transfer_flag, &comp_response,
					    &comp_response_code, NULL);

	kfree(comp_tbl);

	if (status) {
		dev_err(dev, "Failed to transfer component table to firmware, err %d aq_err %s\n",
			status, ice_aq_str(hw->adminq.sq_last_status));
		NL_SET_ERR_MSG_MOD(extack, "Failed to transfer component table to firmware");
		return -EIO;
	}

	return ice_check_component_response(pf, component->identifier, comp_response,
					    comp_response_code, extack);
}

/**
 * ice_write_one_nvm_block - Write an NVM block and await completion response
 * @pf: the PF data structure
 * @module: the module to write to
 * @offset: offset in bytes
 * @block_size: size of the block to write, up to 4k
 * @block: pointer to block of data to write
 * @last_cmd: whether this is the last command
 * @reset_level: storage for reset level required
 * @extack: netlink extended ACK structure
 *
 * Write a block of data to a flash module, and await for the completion
 * response message from firmware.
 *
 * Note this function assumes the caller has acquired the NVM resource.
 *
 * On successful return, reset level indicates the device reset required to
 * complete the update.
 *
 *   0 - ICE_AQC_NVM_POR_FLAG - A full power on is required
 *   1 - ICE_AQC_NVM_PERST_FLAG - A cold PCIe reset is required
 *   2 - ICE_AQC_NVM_EMPR_FLAG - An EMP reset is required
 *
 * Returns: zero on success, or a negative error code on failure.
 */
int ice_write_one_nvm_block(struct ice_pf *pf, u16 module, u32 offset,
			    u16 block_size, u8 *block, bool last_cmd,
			    u8 *reset_level, struct netlink_ext_ack *extack)
{
	u16 completion_module, completion_retval;
	struct device *dev = ice_pf_to_dev(pf);
	struct ice_aq_task task = {};
	struct ice_hw *hw = &pf->hw;
	struct ice_aq_desc *desc;
	u32 completion_offset;
	int err;

	dev_dbg(dev, "Writing block of %u bytes for module 0x%02x at offset %u\n",
		block_size, module, offset);

	ice_aq_prep_for_event(pf, &task, ice_aqc_opc_nvm_write);

	err = ice_aq_update_nvm(hw, module, offset, block_size, block,
				last_cmd, 0, NULL);
	if (err) {
		dev_err(dev, "Failed to flash module 0x%02x with block of size %u at offset %u, err %d aq_err %s\n",
			module, block_size, offset, err,
			ice_aq_str(hw->adminq.sq_last_status));
		NL_SET_ERR_MSG_MOD(extack, "Failed to program flash module");
		return -EIO;
	}

	/* In most cases, firmware reports a write completion within a few
	 * milliseconds. However, it has been observed that a completion might
	 * take more than a second to complete in some cases. The timeout here
	 * is conservative and is intended to prevent failure to update when
	 * firmware is slow to respond.
	 */
	err = ice_aq_wait_for_event(pf, &task, 15 * HZ);
	if (err) {
		dev_err(dev, "Timed out while trying to flash module 0x%02x with block of size %u at offset %u, err %d\n",
			module, block_size, offset, err);
		NL_SET_ERR_MSG_MOD(extack, "Timed out waiting for firmware");
		return -EIO;
	}

	desc = &task.event.desc;
	completion_module = le16_to_cpu(desc->params.nvm.module_typeid);
	completion_retval = le16_to_cpu(desc->retval);

	completion_offset = le16_to_cpu(desc->params.nvm.offset_low);
	completion_offset |= desc->params.nvm.offset_high << 16;

	if (completion_module != module) {
		dev_err(dev, "Unexpected module_typeid in write completion: got 0x%x, expected 0x%x\n",
			completion_module, module);
		NL_SET_ERR_MSG_MOD(extack, "Unexpected firmware response");
		return -EIO;
	}

	if (completion_offset != offset) {
		dev_err(dev, "Unexpected offset in write completion: got %u, expected %u\n",
			completion_offset, offset);
		NL_SET_ERR_MSG_MOD(extack, "Unexpected firmware response");
		return -EIO;
	}

	if (completion_retval) {
		dev_err(dev, "Firmware failed to flash module 0x%02x with block of size %u at offset %u, err %s\n",
			module, block_size, offset,
			ice_aq_str((enum ice_aq_err)completion_retval));
		NL_SET_ERR_MSG_MOD(extack, "Firmware failed to program flash module");
		return -EIO;
	}

	/* For the last command to write the NVM bank, newer versions of
	 * firmware indicate the required level of reset to complete
	 * activation of firmware. If the firmware supports this, cache the
	 * response for indicating to the user later. Otherwise, assume that
	 * a full power cycle is required.
	 */
	if (reset_level && last_cmd && module == ICE_SR_1ST_NVM_BANK_PTR) {
		if (hw->dev_caps.common_cap.pcie_reset_avoidance) {
			*reset_level = desc->params.nvm.cmd_flags &
				       ICE_AQC_NVM_RESET_LVL_M;
			dev_dbg(dev, "Firmware reported required reset level as %u\n",
				*reset_level);
		} else {
			*reset_level = ICE_AQC_NVM_POR_FLAG;
			dev_dbg(dev, "Firmware doesn't support indicating required reset level. Assuming a power cycle is required\n");
		}
	}

	return 0;
}

/**
 * ice_write_nvm_module - Write data to an NVM module
 * @pf: the PF driver structure
 * @module: the module id to program
 * @component: the name of the component being updated
 * @image: buffer of image data to write to the NVM
 * @length: length of the buffer
 * @reset_level: storage for reset level required
 * @extack: netlink extended ACK structure
 *
 * Loop over the data for a given NVM module and program it in 4 Kb
 * blocks. Notify devlink core of progress after each block is programmed.
 * Loops over a block of data and programs the NVM in 4k block chunks.
 *
 * Note this function assumes the caller has acquired the NVM resource.
 *
 * Returns: zero on success, or a negative error code on failure.
 */
static int
ice_write_nvm_module(struct ice_pf *pf, u16 module, const char *component,
		     const u8 *image, u32 length, u8 *reset_level,
		     struct netlink_ext_ack *extack)
{
	struct device *dev = ice_pf_to_dev(pf);
	struct devlink *devlink;
	u32 offset = 0;
	bool last_cmd;
	u8 *block;
	int err;

	dev_dbg(dev, "Beginning write of flash component '%s', module 0x%02x\n", component, module);

	devlink = priv_to_devlink(pf);

	devlink_flash_update_status_notify(devlink, "Flashing",
					   component, 0, length);

	block = kzalloc(ICE_AQ_MAX_BUF_LEN, GFP_KERNEL);
	if (!block)
		return -ENOMEM;

	do {
		u32 block_size;

		block_size = min_t(u32, ICE_AQ_MAX_BUF_LEN, length - offset);
		last_cmd = !(offset + block_size < length);

		/* ice_aq_update_nvm may copy the firmware response into the
		 * buffer, so we must make a copy since the source data is
		 * constant.
		 */
		memcpy(block, image + offset, block_size);

		err = ice_write_one_nvm_block(pf, module, offset, block_size,
					      block, last_cmd, reset_level,
					      extack);
		if (err)
			break;

		offset += block_size;

		devlink_flash_update_status_notify(devlink, "Flashing",
						   component, offset, length);
	} while (!last_cmd);

	dev_dbg(dev, "Completed write of flash component '%s', module 0x%02x\n", component, module);

	if (err)
		devlink_flash_update_status_notify(devlink, "Flashing failed",
						   component, length, length);
	else
		devlink_flash_update_status_notify(devlink, "Flashing done",
						   component, length, length);

	kfree(block);
	return err;
}

/* Length in seconds to wait before timing out when erasing a flash module.
 * Yes, erasing really can take minutes to complete.
 */
#define ICE_FW_ERASE_TIMEOUT 300

/**
 * ice_erase_nvm_module - Erase an NVM module and await firmware completion
 * @pf: the PF data structure
 * @module: the module to erase
 * @component: name of the component being updated
 * @extack: netlink extended ACK structure
 *
 * Erase the inactive NVM bank associated with this module, and await for
 * a completion response message from firmware.
 *
 * Note this function assumes the caller has acquired the NVM resource.
 *
 * Returns: zero on success, or a negative error code on failure.
 */
static int
ice_erase_nvm_module(struct ice_pf *pf, u16 module, const char *component,
		     struct netlink_ext_ack *extack)
{
	u16 completion_module, completion_retval;
	struct device *dev = ice_pf_to_dev(pf);
	struct ice_aq_task task = {};
	struct ice_hw *hw = &pf->hw;
	struct ice_aq_desc *desc;
	struct devlink *devlink;
	int err;

	dev_dbg(dev, "Beginning erase of flash component '%s', module 0x%02x\n", component, module);

	devlink = priv_to_devlink(pf);

	devlink_flash_update_timeout_notify(devlink, "Erasing", component, ICE_FW_ERASE_TIMEOUT);

	ice_aq_prep_for_event(pf, &task, ice_aqc_opc_nvm_erase);

	err = ice_aq_erase_nvm(hw, module, NULL);
	if (err) {
		dev_err(dev, "Failed to erase %s (module 0x%02x), err %d aq_err %s\n",
			component, module, err,
			ice_aq_str(hw->adminq.sq_last_status));
		NL_SET_ERR_MSG_MOD(extack, "Failed to erase flash module");
		err = -EIO;
		goto out_notify_devlink;
	}

	err = ice_aq_wait_for_event(pf, &task, ICE_FW_ERASE_TIMEOUT * HZ);
	if (err) {
		dev_err(dev, "Timed out waiting for firmware to respond with erase completion for %s (module 0x%02x), err %d\n",
			component, module, err);
		NL_SET_ERR_MSG_MOD(extack, "Timed out waiting for firmware");
		goto out_notify_devlink;
	}

	desc = &task.event.desc;
	completion_module = le16_to_cpu(desc->params.nvm.module_typeid);
	completion_retval = le16_to_cpu(desc->retval);

	if (completion_module != module) {
		dev_err(dev, "Unexpected module_typeid in erase completion for %s: got 0x%x, expected 0x%x\n",
			component, completion_module, module);
		NL_SET_ERR_MSG_MOD(extack, "Unexpected firmware response");
		err = -EIO;
		goto out_notify_devlink;
	}

	if (completion_retval) {
		dev_err(dev, "Firmware failed to erase %s (module 0x02%x), aq_err %s\n",
			component, module,
			ice_aq_str((enum ice_aq_err)completion_retval));
		NL_SET_ERR_MSG_MOD(extack, "Firmware failed to erase flash");
		err = -EIO;
		goto out_notify_devlink;
	}

	dev_dbg(dev, "Completed erase of flash component '%s', module 0x%02x\n", component, module);

out_notify_devlink:
	if (err)
		devlink_flash_update_status_notify(devlink, "Erasing failed",
						   component, 0, 0);
	else
		devlink_flash_update_status_notify(devlink, "Erasing done",
						   component, 0, 0);

	return err;
}

/**
 * ice_switch_flash_banks - Tell firmware to switch NVM banks
 * @pf: Pointer to the PF data structure
 * @activate_flags: flags used for the activation command
 * @emp_reset_available: on return, indicates if EMP reset is available
 * @extack: netlink extended ACK structure
 *
 * Notify firmware to activate the newly written flash banks, and wait for the
 * firmware response.
 *
 * Returns: zero on success or an error code on failure.
 */
static int
ice_switch_flash_banks(struct ice_pf *pf, u8 activate_flags,
		       u8 *emp_reset_available, struct netlink_ext_ack *extack)
{
	struct device *dev = ice_pf_to_dev(pf);
	struct ice_aq_task task = {};
	struct ice_hw *hw = &pf->hw;
	u16 completion_retval;
	u8 response_flags;
	int err;

	ice_aq_prep_for_event(pf, &task, ice_aqc_opc_nvm_write_activate);

	err = ice_nvm_write_activate(hw, activate_flags, &response_flags);
	if (err) {
		dev_err(dev, "Failed to switch active flash banks, err %d aq_err %s\n",
			err, ice_aq_str(hw->adminq.sq_last_status));
		NL_SET_ERR_MSG_MOD(extack, "Failed to switch active flash banks");
		return -EIO;
	}

	/* Newer versions of firmware have support to indicate whether an EMP
	 * reset to reload firmware is available. For older firmware, EMP
	 * reset is always available.
	 */
	if (emp_reset_available) {
		if (hw->dev_caps.common_cap.reset_restrict_support) {
			*emp_reset_available = response_flags & ICE_AQC_NVM_EMPR_ENA;
			dev_dbg(dev, "Firmware indicated that EMP reset is %s\n",
				*emp_reset_available ?
				"available" : "not available");
		} else {
			*emp_reset_available = ICE_AQC_NVM_EMPR_ENA;
			dev_dbg(dev, "Firmware does not support restricting EMP reset availability\n");
		}
	}

	err = ice_aq_wait_for_event(pf, &task, 30 * HZ);
	if (err) {
		dev_err(dev, "Timed out waiting for firmware to switch active flash banks, err %d\n",
			err);
		NL_SET_ERR_MSG_MOD(extack, "Timed out waiting for firmware");
		return err;
	}

	completion_retval = le16_to_cpu(task.event.desc.retval);
	if (completion_retval) {
		dev_err(dev, "Firmware failed to switch active flash banks aq_err %s\n",
			ice_aq_str((enum ice_aq_err)completion_retval));
		NL_SET_ERR_MSG_MOD(extack, "Firmware failed to switch active flash banks");
		return -EIO;
	}

	return 0;
}

/**
 * ice_flash_component - Flash a component of the NVM
 * @context: PLDM fw update structure
 * @component: the component table to program
 *
 * Program the flash contents for a given component. First, determine the
 * module id. Then, erase the secondary bank for this module. Finally, write
 * the contents of the component to the NVM.
 *
 * Note this function assumes the caller has acquired the NVM resource.
 *
 * Returns: zero on success, or a negative error code on failure.
 */
static int
ice_flash_component(struct pldmfw *context, struct pldmfw_component *component)
{
	struct ice_fwu_priv *priv = container_of(context, struct ice_fwu_priv, context);
	struct netlink_ext_ack *extack = priv->extack;
	struct ice_pf *pf = priv->pf;
	const char *name;
	u8 *reset_level;
	u16 module;
	u8 flag;
	int err;

	switch (component->identifier) {
	case NVM_COMP_ID_OROM:
		module = ICE_SR_1ST_OROM_BANK_PTR;
		flag = ICE_AQC_NVM_ACTIV_SEL_OROM;
		reset_level = NULL;
		name = "fw.undi";
		break;
	case NVM_COMP_ID_NVM:
		module = ICE_SR_1ST_NVM_BANK_PTR;
		flag = ICE_AQC_NVM_ACTIV_SEL_NVM;
		reset_level = &priv->reset_level;
		name = "fw.mgmt";
		break;
	case NVM_COMP_ID_NETLIST:
		module = ICE_SR_NETLIST_BANK_PTR;
		flag = ICE_AQC_NVM_ACTIV_SEL_NETLIST;
		reset_level = NULL;
		name = "fw.netlist";
		break;
	default:
		/* This should not trigger, since we check the id before
		 * sending the component table to firmware.
		 */
		WARN(1, "Unexpected unknown component identifier 0x%02x",
		     component->identifier);
		return -EINVAL;
	}

	/* Mark this component for activating at the end */
	priv->activate_flags |= flag;

	err = ice_erase_nvm_module(pf, module, name, extack);
	if (err)
		return err;

	return ice_write_nvm_module(pf, module, name, component->component_data,
				    component->component_size, reset_level,
				    extack);
}

/**
 * ice_finalize_update - Perform last steps to complete device update
 * @context: PLDM fw update structure
 *
 * Called as the last step of the update process. Complete the update by
 * telling the firmware to switch active banks, and perform a reset of
 * configured.
 *
 * Returns: 0 on success, or an error code on failure.
 */
static int ice_finalize_update(struct pldmfw *context)
{
	struct ice_fwu_priv *priv = container_of(context, struct ice_fwu_priv, context);
	struct netlink_ext_ack *extack = priv->extack;
	struct ice_pf *pf = priv->pf;
	struct devlink *devlink;
	int err;

	/* Finally, notify firmware to activate the written NVM banks */
	err = ice_switch_flash_banks(pf, priv->activate_flags,
				     &priv->emp_reset_available, extack);
	if (err)
		return err;

	devlink = priv_to_devlink(pf);

	/* If the required reset is EMPR, but EMPR is disabled, report that
	 * a reboot is required instead.
	 */
	if (priv->reset_level == ICE_AQC_NVM_EMPR_FLAG &&
	    !priv->emp_reset_available) {
		dev_dbg(ice_pf_to_dev(pf), "Firmware indicated EMP reset as sufficient, but EMP reset is disabled\n");
		priv->reset_level = ICE_AQC_NVM_PERST_FLAG;
	}

	switch (priv->reset_level) {
	case ICE_AQC_NVM_EMPR_FLAG:
		devlink_flash_update_status_notify(devlink,
						   "Activate new firmware by devlink reload",
						   NULL, 0, 0);
		break;
	case ICE_AQC_NVM_PERST_FLAG:
		devlink_flash_update_status_notify(devlink,
						   "Activate new firmware by rebooting the system",
						   NULL, 0, 0);
		break;
	case ICE_AQC_NVM_POR_FLAG:
	default:
		devlink_flash_update_status_notify(devlink,
						   "Activate new firmware by power cycling the system",
						   NULL, 0, 0);
		break;
	}

	pf->fw_emp_reset_disabled = !priv->emp_reset_available;

	return 0;
}

struct ice_pldm_pci_record_id {
	u32 vendor;
	u32 device;
	u32 subsystem_vendor;
	u32 subsystem_device;
};

/**
 * ice_op_pci_match_record - Check if a PCI device matches the record
 * @context: PLDM fw update structure
 * @record: list of records extracted from the PLDM image
 *
 * Determine if the PCI device associated with this device matches the record
 * data provided.
 *
 * Searches the descriptor TLVs and extracts the relevant descriptor data into
 * a pldm_pci_record_id. This is then compared against the PCI device ID
 * information.
 *
 * Returns: true if the device matches the record, false otherwise.
 */
static bool
ice_op_pci_match_record(struct pldmfw *context, struct pldmfw_record *record)
{
	struct pci_dev *pdev = to_pci_dev(context->dev);
	struct ice_pldm_pci_record_id id = {
		.vendor = PCI_ANY_ID,
		.device = PCI_ANY_ID,
		.subsystem_vendor = PCI_ANY_ID,
		.subsystem_device = PCI_ANY_ID,
	};
	struct pldmfw_desc_tlv *desc;

	list_for_each_entry(desc, &record->descs, entry) {
		u16 value;
		int *ptr;

		switch (desc->type) {
		case PLDM_DESC_ID_PCI_VENDOR_ID:
			ptr = &id.vendor;
			break;
		case PLDM_DESC_ID_PCI_DEVICE_ID:
			ptr = &id.device;
			break;
		case PLDM_DESC_ID_PCI_SUBVENDOR_ID:
			ptr = &id.subsystem_vendor;
			break;
		case PLDM_DESC_ID_PCI_SUBDEV_ID:
			ptr = &id.subsystem_device;
			break;
		default:
			/* Skip unrelated TLVs */
			continue;
		}

		value = get_unaligned_le16(desc->data);
		/* A value of zero for one of the descriptors is sometimes
		 * used when the record should ignore this field when matching
		 * device. For example if the record applies to any subsystem
		 * device or vendor.
		 */
		if (value)
			*ptr = value;
		else
			*ptr = PCI_ANY_ID;
	}

	/* the E822 device can have a generic device ID so check for that */
	if ((id.vendor == PCI_ANY_ID || id.vendor == pdev->vendor) &&
	    (id.device == PCI_ANY_ID || id.device == pdev->device ||
	    id.device == ICE_DEV_ID_E822_SI_DFLT) &&
	    (id.subsystem_vendor == PCI_ANY_ID ||
	    id.subsystem_vendor == pdev->subsystem_vendor) &&
	    (id.subsystem_device == PCI_ANY_ID ||
	    id.subsystem_device == pdev->subsystem_device))
		return true;

	return false;
}

static const struct pldmfw_ops ice_fwu_ops_e810 = {
	.match_record = &pldmfw_op_pci_match_record,
	.send_package_data = &ice_send_package_data,
	.send_component_table = &ice_send_component_table,
	.flash_component = &ice_flash_component,
	.finalize_update = &ice_finalize_update,
};

static const struct pldmfw_ops ice_fwu_ops_e822 = {
	.match_record = &ice_op_pci_match_record,
	.send_package_data = &ice_send_package_data,
	.send_component_table = &ice_send_component_table,
	.flash_component = &ice_flash_component,
	.finalize_update = &ice_finalize_update,
};

/**
 * ice_get_pending_updates - Check if the component has a pending update
 * @pf: the PF driver structure
 * @pending: on return, bitmap of updates pending
 * @extack: Netlink extended ACK
 *
 * Check if the device has any pending updates on any flash components.
 *
 * Returns: zero on success, or a negative error code on failure. Updates
 * pending with the bitmap of pending updates.
 */
int ice_get_pending_updates(struct ice_pf *pf, u8 *pending,
			    struct netlink_ext_ack *extack)
{
	struct device *dev = ice_pf_to_dev(pf);
	struct ice_hw_dev_caps *dev_caps;
	struct ice_hw *hw = &pf->hw;
	int err;

	dev_caps = kzalloc(sizeof(*dev_caps), GFP_KERNEL);
	if (!dev_caps)
		return -ENOMEM;

	/* Read the most recent device capabilities from firmware. Do not use
	 * the cached values in hw->dev_caps, because the pending update flag
	 * may have changed, e.g. if an update was previously completed and
	 * the system has not yet rebooted.
	 */
	err = ice_discover_dev_caps(hw, dev_caps);
	if (err) {
		NL_SET_ERR_MSG_MOD(extack, "Unable to read device capabilities");
		kfree(dev_caps);
		return err;
	}

	*pending = 0;

	if (dev_caps->common_cap.nvm_update_pending_nvm) {
		dev_info(dev, "The fw.mgmt flash component has a pending update\n");
		*pending |= ICE_AQC_NVM_ACTIV_SEL_NVM;
	}

	if (dev_caps->common_cap.nvm_update_pending_orom) {
		dev_info(dev, "The fw.undi flash component has a pending update\n");
		*pending |= ICE_AQC_NVM_ACTIV_SEL_OROM;
	}

	if (dev_caps->common_cap.nvm_update_pending_netlist) {
		dev_info(dev, "The fw.netlist flash component has a pending update\n");
		*pending |= ICE_AQC_NVM_ACTIV_SEL_NETLIST;
	}

	kfree(dev_caps);

	return 0;
}

/**
 * ice_cancel_pending_update - Cancel any pending update for a component
 * @pf: the PF driver structure
 * @component: if not NULL, the name of the component being updated
 * @extack: Netlink extended ACK structure
 *
 * Cancel any pending update for the specified component. If component is
 * NULL, all device updates will be canceled.
 *
 * Returns: zero on success, or a negative error code on failure.
 */
static int
ice_cancel_pending_update(struct ice_pf *pf, const char *component,
			  struct netlink_ext_ack *extack)
{
	struct devlink *devlink = priv_to_devlink(pf);
	struct device *dev = ice_pf_to_dev(pf);
	struct ice_hw *hw = &pf->hw;
	u8 pending;
	int err;

	err = ice_get_pending_updates(pf, &pending, extack);
	if (err)
		return err;

	/* If the flash_update request is for a specific component, ignore all
	 * of the other components.
	 */
	if (component) {
		if (strcmp(component, "fw.mgmt") == 0)
			pending &= ICE_AQC_NVM_ACTIV_SEL_NVM;
		else if (strcmp(component, "fw.undi") == 0)
			pending &= ICE_AQC_NVM_ACTIV_SEL_OROM;
		else if (strcmp(component, "fw.netlist") == 0)
			pending &= ICE_AQC_NVM_ACTIV_SEL_NETLIST;
		else
			WARN(1, "Unexpected flash component %s", component);
	}

	/* There is no previous pending update, so this request may continue */
	if (!pending)
		return 0;

	/* In order to allow overwriting a previous pending update, notify
	 * firmware to cancel that update by issuing the appropriate command.
	 */
	devlink_flash_update_status_notify(devlink,
					   "Canceling previous pending update",
					   component, 0, 0);

	err = ice_acquire_nvm(hw, ICE_RES_WRITE);
	if (err) {
		dev_err(dev, "Failed to acquire device flash lock, err %d aq_err %s\n",
			err, ice_aq_str(hw->adminq.sq_last_status));
		NL_SET_ERR_MSG_MOD(extack, "Failed to acquire device flash lock");
		return err;
	}

	pending |= ICE_AQC_NVM_REVERT_LAST_ACTIV;
	err = ice_switch_flash_banks(pf, pending, NULL, extack);

	ice_release_nvm(hw);

	/* Since we've canceled the pending update, we no longer know if EMP
	 * reset is restricted.
	 */
	pf->fw_emp_reset_disabled = false;

	return err;
}

/**
 * ice_devlink_flash_update - Write a firmware image to the device
 * @devlink: pointer to devlink associated with the device to update
 * @params: devlink flash update parameters
 * @extack: netlink extended ACK structure
 *
 * Parse the data for a given firmware file, verifying that it is a valid PLDM
 * formatted image that matches this device.
 *
 * Extract the device record Package Data and Component Tables and send them
 * to the firmware. Extract and write the flash data for each of the three
 * main flash components, "fw.mgmt", "fw.undi", and "fw.netlist". Notify
 * firmware once the data is written to the inactive banks.
 *
 * Returns: zero on success or a negative error code on failure.
 */
int ice_devlink_flash_update(struct devlink *devlink,
			     struct devlink_flash_update_params *params,
			     struct netlink_ext_ack *extack)
{
	struct ice_pf *pf = devlink_priv(devlink);
	struct device *dev = ice_pf_to_dev(pf);
	struct ice_hw *hw = &pf->hw;
	struct ice_fwu_priv priv;
	u8 preservation;
	int err;

	if (!params->overwrite_mask) {
		/* preserve all settings and identifiers */
		preservation = ICE_AQC_NVM_PRESERVE_ALL;
	} else if (params->overwrite_mask == DEVLINK_FLASH_OVERWRITE_SETTINGS) {
		/* overwrite settings, but preserve the vital device identifiers */
		preservation = ICE_AQC_NVM_PRESERVE_SELECTED;
	} else if (params->overwrite_mask == (DEVLINK_FLASH_OVERWRITE_SETTINGS |
					      DEVLINK_FLASH_OVERWRITE_IDENTIFIERS)) {
		/* overwrite both settings and identifiers, preserve nothing */
		preservation = ICE_AQC_NVM_NO_PRESERVATION;
	} else {
		NL_SET_ERR_MSG_MOD(extack, "Requested overwrite mask is not supported");
		return -EOPNOTSUPP;
	}

	if (!hw->dev_caps.common_cap.nvm_unified_update) {
		NL_SET_ERR_MSG_MOD(extack, "Current firmware does not support unified update");
		return -EOPNOTSUPP;
	}

	memset(&priv, 0, sizeof(priv));

	/* the E822 device needs a slightly different ops */
	if (hw->mac_type == ICE_MAC_GENERIC)
		priv.context.ops = &ice_fwu_ops_e822;
	else
		priv.context.ops = &ice_fwu_ops_e810;
	priv.context.dev = dev;
	priv.extack = extack;
	priv.pf = pf;
	priv.activate_flags = preservation;

	devlink_flash_update_status_notify(devlink, "Preparing to flash", NULL, 0, 0);

	err = ice_cancel_pending_update(pf, NULL, extack);
	if (err)
		return err;

	err = ice_acquire_nvm(hw, ICE_RES_WRITE);
	if (err) {
		dev_err(dev, "Failed to acquire device flash lock, err %d aq_err %s\n",
			err, ice_aq_str(hw->adminq.sq_last_status));
		NL_SET_ERR_MSG_MOD(extack, "Failed to acquire device flash lock");
		return err;
	}

	err = pldmfw_flash_image(&priv.context, params->fw);
	if (err == -ENOENT) {
		dev_err(dev, "Firmware image has no record matching this device\n");
		NL_SET_ERR_MSG_MOD(extack, "Firmware image has no record matching this device");
	} else if (err) {
		/* Do not set a generic extended ACK message here. A more
		 * specific message may already have been set by one of our
		 * ops.
		 */
		dev_err(dev, "Failed to flash PLDM image, err %d", err);
	}

	ice_release_nvm(hw);

	return err;
}