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
|
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2020, Intel Corporation. */
#include "ice.h"
#include "ice_lib.h"
#include "ice_devlink.h"
#include "ice_eswitch.h"
#include "ice_fw_update.h"
/* context for devlink info version reporting */
struct ice_info_ctx {
char buf[128];
struct ice_orom_info pending_orom;
struct ice_nvm_info pending_nvm;
struct ice_netlist_info pending_netlist;
struct ice_hw_dev_caps dev_caps;
};
/* The following functions are used to format specific strings for various
* devlink info versions. The ctx parameter is used to provide the storage
* buffer, as well as any ancillary information calculated when the info
* request was made.
*
* If a version does not exist, for example when attempting to get the
* inactive version of flash when there is no pending update, the function
* should leave the buffer in the ctx structure empty.
*/
static void ice_info_get_dsn(struct ice_pf *pf, struct ice_info_ctx *ctx)
{
u8 dsn[8];
/* Copy the DSN into an array in Big Endian format */
put_unaligned_be64(pci_get_dsn(pf->pdev), dsn);
snprintf(ctx->buf, sizeof(ctx->buf), "%8phD", dsn);
}
static void ice_info_pba(struct ice_pf *pf, struct ice_info_ctx *ctx)
{
struct ice_hw *hw = &pf->hw;
int status;
status = ice_read_pba_string(hw, (u8 *)ctx->buf, sizeof(ctx->buf));
if (status)
/* We failed to locate the PBA, so just skip this entry */
dev_dbg(ice_pf_to_dev(pf), "Failed to read Product Board Assembly string, status %d\n",
status);
}
static void ice_info_fw_mgmt(struct ice_pf *pf, struct ice_info_ctx *ctx)
{
struct ice_hw *hw = &pf->hw;
snprintf(ctx->buf, sizeof(ctx->buf), "%u.%u.%u",
hw->fw_maj_ver, hw->fw_min_ver, hw->fw_patch);
}
static void ice_info_fw_api(struct ice_pf *pf, struct ice_info_ctx *ctx)
{
struct ice_hw *hw = &pf->hw;
snprintf(ctx->buf, sizeof(ctx->buf), "%u.%u.%u", hw->api_maj_ver,
hw->api_min_ver, hw->api_patch);
}
static void ice_info_fw_build(struct ice_pf *pf, struct ice_info_ctx *ctx)
{
struct ice_hw *hw = &pf->hw;
snprintf(ctx->buf, sizeof(ctx->buf), "0x%08x", hw->fw_build);
}
static void ice_info_orom_ver(struct ice_pf *pf, struct ice_info_ctx *ctx)
{
struct ice_orom_info *orom = &pf->hw.flash.orom;
snprintf(ctx->buf, sizeof(ctx->buf), "%u.%u.%u",
orom->major, orom->build, orom->patch);
}
static void
ice_info_pending_orom_ver(struct ice_pf __always_unused *pf,
struct ice_info_ctx *ctx)
{
struct ice_orom_info *orom = &ctx->pending_orom;
if (ctx->dev_caps.common_cap.nvm_update_pending_orom)
snprintf(ctx->buf, sizeof(ctx->buf), "%u.%u.%u",
orom->major, orom->build, orom->patch);
}
static void ice_info_nvm_ver(struct ice_pf *pf, struct ice_info_ctx *ctx)
{
struct ice_nvm_info *nvm = &pf->hw.flash.nvm;
snprintf(ctx->buf, sizeof(ctx->buf), "%x.%02x", nvm->major, nvm->minor);
}
static void
ice_info_pending_nvm_ver(struct ice_pf __always_unused *pf,
struct ice_info_ctx *ctx)
{
struct ice_nvm_info *nvm = &ctx->pending_nvm;
if (ctx->dev_caps.common_cap.nvm_update_pending_nvm)
snprintf(ctx->buf, sizeof(ctx->buf), "%x.%02x",
nvm->major, nvm->minor);
}
static void ice_info_eetrack(struct ice_pf *pf, struct ice_info_ctx *ctx)
{
struct ice_nvm_info *nvm = &pf->hw.flash.nvm;
snprintf(ctx->buf, sizeof(ctx->buf), "0x%08x", nvm->eetrack);
}
static void
ice_info_pending_eetrack(struct ice_pf *pf, struct ice_info_ctx *ctx)
{
struct ice_nvm_info *nvm = &ctx->pending_nvm;
if (ctx->dev_caps.common_cap.nvm_update_pending_nvm)
snprintf(ctx->buf, sizeof(ctx->buf), "0x%08x", nvm->eetrack);
}
static void ice_info_ddp_pkg_name(struct ice_pf *pf, struct ice_info_ctx *ctx)
{
struct ice_hw *hw = &pf->hw;
snprintf(ctx->buf, sizeof(ctx->buf), "%s", hw->active_pkg_name);
}
static void
ice_info_ddp_pkg_version(struct ice_pf *pf, struct ice_info_ctx *ctx)
{
struct ice_pkg_ver *pkg = &pf->hw.active_pkg_ver;
snprintf(ctx->buf, sizeof(ctx->buf), "%u.%u.%u.%u",
pkg->major, pkg->minor, pkg->update, pkg->draft);
}
static void
ice_info_ddp_pkg_bundle_id(struct ice_pf *pf, struct ice_info_ctx *ctx)
{
snprintf(ctx->buf, sizeof(ctx->buf), "0x%08x", pf->hw.active_track_id);
}
static void ice_info_netlist_ver(struct ice_pf *pf, struct ice_info_ctx *ctx)
{
struct ice_netlist_info *netlist = &pf->hw.flash.netlist;
/* The netlist version fields are BCD formatted */
snprintf(ctx->buf, sizeof(ctx->buf), "%x.%x.%x-%x.%x.%x",
netlist->major, netlist->minor,
netlist->type >> 16, netlist->type & 0xFFFF,
netlist->rev, netlist->cust_ver);
}
static void ice_info_netlist_build(struct ice_pf *pf, struct ice_info_ctx *ctx)
{
struct ice_netlist_info *netlist = &pf->hw.flash.netlist;
snprintf(ctx->buf, sizeof(ctx->buf), "0x%08x", netlist->hash);
}
static void
ice_info_pending_netlist_ver(struct ice_pf __always_unused *pf,
struct ice_info_ctx *ctx)
{
struct ice_netlist_info *netlist = &ctx->pending_netlist;
/* The netlist version fields are BCD formatted */
if (ctx->dev_caps.common_cap.nvm_update_pending_netlist)
snprintf(ctx->buf, sizeof(ctx->buf), "%x.%x.%x-%x.%x.%x",
netlist->major, netlist->minor,
netlist->type >> 16, netlist->type & 0xFFFF,
netlist->rev, netlist->cust_ver);
}
static void
ice_info_pending_netlist_build(struct ice_pf __always_unused *pf,
struct ice_info_ctx *ctx)
{
struct ice_netlist_info *netlist = &ctx->pending_netlist;
if (ctx->dev_caps.common_cap.nvm_update_pending_netlist)
snprintf(ctx->buf, sizeof(ctx->buf), "0x%08x", netlist->hash);
}
#define fixed(key, getter) { ICE_VERSION_FIXED, key, getter, NULL }
#define running(key, getter) { ICE_VERSION_RUNNING, key, getter, NULL }
#define stored(key, getter, fallback) { ICE_VERSION_STORED, key, getter, fallback }
/* The combined() macro inserts both the running entry as well as a stored
* entry. The running entry will always report the version from the active
* handler. The stored entry will first try the pending handler, and fallback
* to the active handler if the pending function does not report a version.
* The pending handler should check the status of a pending update for the
* relevant flash component. It should only fill in the buffer in the case
* where a valid pending version is available. This ensures that the related
* stored and running versions remain in sync, and that stored versions are
* correctly reported as expected.
*/
#define combined(key, active, pending) \
running(key, active), \
stored(key, pending, active)
enum ice_version_type {
ICE_VERSION_FIXED,
ICE_VERSION_RUNNING,
ICE_VERSION_STORED,
};
static const struct ice_devlink_version {
enum ice_version_type type;
const char *key;
void (*getter)(struct ice_pf *pf, struct ice_info_ctx *ctx);
void (*fallback)(struct ice_pf *pf, struct ice_info_ctx *ctx);
} ice_devlink_versions[] = {
fixed(DEVLINK_INFO_VERSION_GENERIC_BOARD_ID, ice_info_pba),
running(DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, ice_info_fw_mgmt),
running("fw.mgmt.api", ice_info_fw_api),
running("fw.mgmt.build", ice_info_fw_build),
combined(DEVLINK_INFO_VERSION_GENERIC_FW_UNDI, ice_info_orom_ver, ice_info_pending_orom_ver),
combined("fw.psid.api", ice_info_nvm_ver, ice_info_pending_nvm_ver),
combined(DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID, ice_info_eetrack, ice_info_pending_eetrack),
running("fw.app.name", ice_info_ddp_pkg_name),
running(DEVLINK_INFO_VERSION_GENERIC_FW_APP, ice_info_ddp_pkg_version),
running("fw.app.bundle_id", ice_info_ddp_pkg_bundle_id),
combined("fw.netlist", ice_info_netlist_ver, ice_info_pending_netlist_ver),
combined("fw.netlist.build", ice_info_netlist_build, ice_info_pending_netlist_build),
};
/**
* ice_devlink_info_get - .info_get devlink handler
* @devlink: devlink instance structure
* @req: the devlink info request
* @extack: extended netdev ack structure
*
* Callback for the devlink .info_get operation. Reports information about the
* device.
*
* Return: zero on success or an error code on failure.
*/
static int ice_devlink_info_get(struct devlink *devlink,
struct devlink_info_req *req,
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_info_ctx *ctx;
size_t i;
int err;
err = ice_wait_for_reset(pf, 10 * HZ);
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Device is busy resetting");
return err;
}
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
/* discover capabilities first */
err = ice_discover_dev_caps(hw, &ctx->dev_caps);
if (err) {
dev_dbg(dev, "Failed to discover device capabilities, status %d aq_err %s\n",
err, ice_aq_str(hw->adminq.sq_last_status));
NL_SET_ERR_MSG_MOD(extack, "Unable to discover device capabilities");
err = -EIO;
goto out_free_ctx;
}
if (ctx->dev_caps.common_cap.nvm_update_pending_orom) {
err = ice_get_inactive_orom_ver(hw, &ctx->pending_orom);
if (err) {
dev_dbg(dev, "Unable to read inactive Option ROM version data, status %d aq_err %s\n",
err, ice_aq_str(hw->adminq.sq_last_status));
/* disable display of pending Option ROM */
ctx->dev_caps.common_cap.nvm_update_pending_orom = false;
}
}
if (ctx->dev_caps.common_cap.nvm_update_pending_nvm) {
err = ice_get_inactive_nvm_ver(hw, &ctx->pending_nvm);
if (err) {
dev_dbg(dev, "Unable to read inactive NVM version data, status %d aq_err %s\n",
err, ice_aq_str(hw->adminq.sq_last_status));
/* disable display of pending Option ROM */
ctx->dev_caps.common_cap.nvm_update_pending_nvm = false;
}
}
if (ctx->dev_caps.common_cap.nvm_update_pending_netlist) {
err = ice_get_inactive_netlist_ver(hw, &ctx->pending_netlist);
if (err) {
dev_dbg(dev, "Unable to read inactive Netlist version data, status %d aq_err %s\n",
err, ice_aq_str(hw->adminq.sq_last_status));
/* disable display of pending Option ROM */
ctx->dev_caps.common_cap.nvm_update_pending_netlist = false;
}
}
err = devlink_info_driver_name_put(req, KBUILD_MODNAME);
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Unable to set driver name");
goto out_free_ctx;
}
ice_info_get_dsn(pf, ctx);
err = devlink_info_serial_number_put(req, ctx->buf);
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Unable to set serial number");
goto out_free_ctx;
}
for (i = 0; i < ARRAY_SIZE(ice_devlink_versions); i++) {
enum ice_version_type type = ice_devlink_versions[i].type;
const char *key = ice_devlink_versions[i].key;
memset(ctx->buf, 0, sizeof(ctx->buf));
ice_devlink_versions[i].getter(pf, ctx);
/* If the default getter doesn't report a version, use the
* fallback function. This is primarily useful in the case of
* "stored" versions that want to report the same value as the
* running version in the normal case of no pending update.
*/
if (ctx->buf[0] == '\0' && ice_devlink_versions[i].fallback)
ice_devlink_versions[i].fallback(pf, ctx);
/* Do not report missing versions */
if (ctx->buf[0] == '\0')
continue;
switch (type) {
case ICE_VERSION_FIXED:
err = devlink_info_version_fixed_put(req, key, ctx->buf);
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Unable to set fixed version");
goto out_free_ctx;
}
break;
case ICE_VERSION_RUNNING:
err = devlink_info_version_running_put(req, key, ctx->buf);
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Unable to set running version");
goto out_free_ctx;
}
break;
case ICE_VERSION_STORED:
err = devlink_info_version_stored_put(req, key, ctx->buf);
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Unable to set stored version");
goto out_free_ctx;
}
break;
}
}
out_free_ctx:
kfree(ctx);
return err;
}
/**
* ice_devlink_flash_update - Update firmware stored in flash on the device
* @devlink: pointer to devlink associated with device to update
* @params: flash update parameters
* @extack: netlink extended ACK structure
*
* Perform a device flash update. The bulk of the update logic is contained
* within the ice_flash_pldm_image function.
*
* Returns: zero on success, or an error code on failure.
*/
static 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 ice_hw *hw = &pf->hw;
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;
}
err = ice_check_for_pending_update(pf, NULL, extack);
if (err)
return err;
devlink_flash_update_status_notify(devlink, "Preparing to flash", NULL, 0, 0);
return ice_flash_pldm_image(pf, params->fw, preservation, extack);
}
static const struct devlink_ops ice_devlink_ops = {
.supported_flash_update_params = DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK,
.eswitch_mode_get = ice_eswitch_mode_get,
.eswitch_mode_set = ice_eswitch_mode_set,
.info_get = ice_devlink_info_get,
.flash_update = ice_devlink_flash_update,
};
static int
ice_devlink_enable_roce_get(struct devlink *devlink, u32 id,
struct devlink_param_gset_ctx *ctx)
{
struct ice_pf *pf = devlink_priv(devlink);
ctx->val.vbool = pf->rdma_mode & IIDC_RDMA_PROTOCOL_ROCEV2 ? true : false;
return 0;
}
static int
ice_devlink_enable_roce_set(struct devlink *devlink, u32 id,
struct devlink_param_gset_ctx *ctx)
{
struct ice_pf *pf = devlink_priv(devlink);
bool roce_ena = ctx->val.vbool;
int ret;
if (!roce_ena) {
ice_unplug_aux_dev(pf);
pf->rdma_mode &= ~IIDC_RDMA_PROTOCOL_ROCEV2;
return 0;
}
pf->rdma_mode |= IIDC_RDMA_PROTOCOL_ROCEV2;
ret = ice_plug_aux_dev(pf);
if (ret)
pf->rdma_mode &= ~IIDC_RDMA_PROTOCOL_ROCEV2;
return ret;
}
static int
ice_devlink_enable_roce_validate(struct devlink *devlink, u32 id,
union devlink_param_value val,
struct netlink_ext_ack *extack)
{
struct ice_pf *pf = devlink_priv(devlink);
if (!test_bit(ICE_FLAG_RDMA_ENA, pf->flags))
return -EOPNOTSUPP;
if (pf->rdma_mode & IIDC_RDMA_PROTOCOL_IWARP) {
NL_SET_ERR_MSG_MOD(extack, "iWARP is currently enabled. This device cannot enable iWARP and RoCEv2 simultaneously");
return -EOPNOTSUPP;
}
return 0;
}
static int
ice_devlink_enable_iw_get(struct devlink *devlink, u32 id,
struct devlink_param_gset_ctx *ctx)
{
struct ice_pf *pf = devlink_priv(devlink);
ctx->val.vbool = pf->rdma_mode & IIDC_RDMA_PROTOCOL_IWARP;
return 0;
}
static int
ice_devlink_enable_iw_set(struct devlink *devlink, u32 id,
struct devlink_param_gset_ctx *ctx)
{
struct ice_pf *pf = devlink_priv(devlink);
bool iw_ena = ctx->val.vbool;
int ret;
if (!iw_ena) {
ice_unplug_aux_dev(pf);
pf->rdma_mode &= ~IIDC_RDMA_PROTOCOL_IWARP;
return 0;
}
pf->rdma_mode |= IIDC_RDMA_PROTOCOL_IWARP;
ret = ice_plug_aux_dev(pf);
if (ret)
pf->rdma_mode &= ~IIDC_RDMA_PROTOCOL_IWARP;
return ret;
}
static int
ice_devlink_enable_iw_validate(struct devlink *devlink, u32 id,
union devlink_param_value val,
struct netlink_ext_ack *extack)
{
struct ice_pf *pf = devlink_priv(devlink);
if (!test_bit(ICE_FLAG_RDMA_ENA, pf->flags))
return -EOPNOTSUPP;
if (pf->rdma_mode & IIDC_RDMA_PROTOCOL_ROCEV2) {
NL_SET_ERR_MSG_MOD(extack, "RoCEv2 is currently enabled. This device cannot enable iWARP and RoCEv2 simultaneously");
return -EOPNOTSUPP;
}
return 0;
}
static const struct devlink_param ice_devlink_params[] = {
DEVLINK_PARAM_GENERIC(ENABLE_ROCE, BIT(DEVLINK_PARAM_CMODE_RUNTIME),
ice_devlink_enable_roce_get,
ice_devlink_enable_roce_set,
ice_devlink_enable_roce_validate),
DEVLINK_PARAM_GENERIC(ENABLE_IWARP, BIT(DEVLINK_PARAM_CMODE_RUNTIME),
ice_devlink_enable_iw_get,
ice_devlink_enable_iw_set,
ice_devlink_enable_iw_validate),
};
static void ice_devlink_free(void *devlink_ptr)
{
devlink_free((struct devlink *)devlink_ptr);
}
/**
* ice_allocate_pf - Allocate devlink and return PF structure pointer
* @dev: the device to allocate for
*
* Allocate a devlink instance for this device and return the private area as
* the PF structure. The devlink memory is kept track of through devres by
* adding an action to remove it when unwinding.
*/
struct ice_pf *ice_allocate_pf(struct device *dev)
{
struct devlink *devlink;
devlink = devlink_alloc(&ice_devlink_ops, sizeof(struct ice_pf), dev);
if (!devlink)
return NULL;
/* Add an action to teardown the devlink when unwinding the driver */
if (devm_add_action_or_reset(dev, ice_devlink_free, devlink))
return NULL;
return devlink_priv(devlink);
}
/**
* ice_devlink_register - Register devlink interface for this PF
* @pf: the PF to register the devlink for.
*
* Register the devlink instance associated with this physical function.
*
* Return: zero on success or an error code on failure.
*/
void ice_devlink_register(struct ice_pf *pf)
{
struct devlink *devlink = priv_to_devlink(pf);
devlink_register(devlink);
}
/**
* ice_devlink_unregister - Unregister devlink resources for this PF.
* @pf: the PF structure to cleanup
*
* Releases resources used by devlink and cleans up associated memory.
*/
void ice_devlink_unregister(struct ice_pf *pf)
{
devlink_unregister(priv_to_devlink(pf));
}
int ice_devlink_register_params(struct ice_pf *pf)
{
struct devlink *devlink = priv_to_devlink(pf);
union devlink_param_value value;
int err;
err = devlink_params_register(devlink, ice_devlink_params,
ARRAY_SIZE(ice_devlink_params));
if (err)
return err;
value.vbool = false;
devlink_param_driverinit_value_set(devlink,
DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP,
value);
value.vbool = test_bit(ICE_FLAG_RDMA_ENA, pf->flags) ? true : false;
devlink_param_driverinit_value_set(devlink,
DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
value);
return 0;
}
void ice_devlink_unregister_params(struct ice_pf *pf)
{
devlink_params_unregister(priv_to_devlink(pf), ice_devlink_params,
ARRAY_SIZE(ice_devlink_params));
}
/**
* ice_devlink_create_pf_port - Create a devlink port for this PF
* @pf: the PF to create a devlink port for
*
* Create and register a devlink_port for this PF.
*
* Return: zero on success or an error code on failure.
*/
int ice_devlink_create_pf_port(struct ice_pf *pf)
{
struct devlink_port_attrs attrs = {};
struct devlink_port *devlink_port;
struct devlink *devlink;
struct ice_vsi *vsi;
struct device *dev;
int err;
dev = ice_pf_to_dev(pf);
devlink_port = &pf->devlink_port;
vsi = ice_get_main_vsi(pf);
if (!vsi)
return -EIO;
attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
attrs.phys.port_number = pf->hw.bus.func;
devlink_port_attrs_set(devlink_port, &attrs);
devlink = priv_to_devlink(pf);
err = devlink_port_register(devlink, devlink_port, vsi->idx);
if (err) {
dev_err(dev, "Failed to create devlink port for PF %d, error %d\n",
pf->hw.pf_id, err);
return err;
}
return 0;
}
/**
* ice_devlink_destroy_pf_port - Destroy the devlink_port for this PF
* @pf: the PF to cleanup
*
* Unregisters the devlink_port structure associated with this PF.
*/
void ice_devlink_destroy_pf_port(struct ice_pf *pf)
{
struct devlink_port *devlink_port;
devlink_port = &pf->devlink_port;
devlink_port_type_clear(devlink_port);
devlink_port_unregister(devlink_port);
}
/**
* ice_devlink_create_vf_port - Create a devlink port for this VF
* @vf: the VF to create a port for
*
* Create and register a devlink_port for this VF.
*
* Return: zero on success or an error code on failure.
*/
int ice_devlink_create_vf_port(struct ice_vf *vf)
{
struct devlink_port_attrs attrs = {};
struct devlink_port *devlink_port;
struct devlink *devlink;
struct ice_vsi *vsi;
struct device *dev;
struct ice_pf *pf;
int err;
pf = vf->pf;
dev = ice_pf_to_dev(pf);
vsi = ice_get_vf_vsi(vf);
devlink_port = &vf->devlink_port;
attrs.flavour = DEVLINK_PORT_FLAVOUR_PCI_VF;
attrs.pci_vf.pf = pf->hw.bus.func;
attrs.pci_vf.vf = vf->vf_id;
devlink_port_attrs_set(devlink_port, &attrs);
devlink = priv_to_devlink(pf);
err = devlink_port_register(devlink, devlink_port, vsi->idx);
if (err) {
dev_err(dev, "Failed to create devlink port for VF %d, error %d\n",
vf->vf_id, err);
return err;
}
return 0;
}
/**
* ice_devlink_destroy_vf_port - Destroy the devlink_port for this VF
* @vf: the VF to cleanup
*
* Unregisters the devlink_port structure associated with this VF.
*/
void ice_devlink_destroy_vf_port(struct ice_vf *vf)
{
struct devlink_port *devlink_port;
devlink_port = &vf->devlink_port;
devlink_port_type_clear(devlink_port);
devlink_port_unregister(devlink_port);
}
/**
* ice_devlink_nvm_snapshot - Capture a snapshot of the Shadow RAM contents
* @devlink: the devlink instance
* @ops: the devlink region being snapshotted
* @extack: extended ACK response structure
* @data: on exit points to snapshot data buffer
*
* This function is called in response to the DEVLINK_CMD_REGION_TRIGGER for
* the shadow-ram devlink region. It captures a snapshot of the shadow ram
* contents. This snapshot can later be viewed via the devlink-region
* interface.
*
* @returns zero on success, and updates the data pointer. Returns a non-zero
* error code on failure.
*/
static int ice_devlink_nvm_snapshot(struct devlink *devlink,
const struct devlink_region_ops *ops,
struct netlink_ext_ack *extack, u8 **data)
{
struct ice_pf *pf = devlink_priv(devlink);
struct device *dev = ice_pf_to_dev(pf);
struct ice_hw *hw = &pf->hw;
void *nvm_data;
u32 nvm_size;
int status;
nvm_size = hw->flash.flash_size;
nvm_data = vzalloc(nvm_size);
if (!nvm_data)
return -ENOMEM;
status = ice_acquire_nvm(hw, ICE_RES_READ);
if (status) {
dev_dbg(dev, "ice_acquire_nvm failed, err %d aq_err %d\n",
status, hw->adminq.sq_last_status);
NL_SET_ERR_MSG_MOD(extack, "Failed to acquire NVM semaphore");
vfree(nvm_data);
return -EIO;
}
status = ice_read_flat_nvm(hw, 0, &nvm_size, nvm_data, false);
if (status) {
dev_dbg(dev, "ice_read_flat_nvm failed after reading %u bytes, err %d aq_err %d\n",
nvm_size, status, hw->adminq.sq_last_status);
NL_SET_ERR_MSG_MOD(extack, "Failed to read NVM contents");
ice_release_nvm(hw);
vfree(nvm_data);
return -EIO;
}
ice_release_nvm(hw);
*data = nvm_data;
return 0;
}
/**
* ice_devlink_devcaps_snapshot - Capture snapshot of device capabilities
* @devlink: the devlink instance
* @ops: the devlink region being snapshotted
* @extack: extended ACK response structure
* @data: on exit points to snapshot data buffer
*
* This function is called in response to the DEVLINK_CMD_REGION_TRIGGER for
* the device-caps devlink region. It captures a snapshot of the device
* capabilities reported by firmware.
*
* @returns zero on success, and updates the data pointer. Returns a non-zero
* error code on failure.
*/
static int
ice_devlink_devcaps_snapshot(struct devlink *devlink,
const struct devlink_region_ops *ops,
struct netlink_ext_ack *extack, u8 **data)
{
struct ice_pf *pf = devlink_priv(devlink);
struct device *dev = ice_pf_to_dev(pf);
struct ice_hw *hw = &pf->hw;
void *devcaps;
int status;
devcaps = vzalloc(ICE_AQ_MAX_BUF_LEN);
if (!devcaps)
return -ENOMEM;
status = ice_aq_list_caps(hw, devcaps, ICE_AQ_MAX_BUF_LEN, NULL,
ice_aqc_opc_list_dev_caps, NULL);
if (status) {
dev_dbg(dev, "ice_aq_list_caps: failed to read device capabilities, err %d aq_err %d\n",
status, hw->adminq.sq_last_status);
NL_SET_ERR_MSG_MOD(extack, "Failed to read device capabilities");
vfree(devcaps);
return -EIO;
}
*data = (u8 *)devcaps;
return 0;
}
static const struct devlink_region_ops ice_nvm_region_ops = {
.name = "nvm-flash",
.destructor = vfree,
.snapshot = ice_devlink_nvm_snapshot,
};
static const struct devlink_region_ops ice_devcaps_region_ops = {
.name = "device-caps",
.destructor = vfree,
.snapshot = ice_devlink_devcaps_snapshot,
};
/**
* ice_devlink_init_regions - Initialize devlink regions
* @pf: the PF device structure
*
* Create devlink regions used to enable access to dump the contents of the
* flash memory on the device.
*/
void ice_devlink_init_regions(struct ice_pf *pf)
{
struct devlink *devlink = priv_to_devlink(pf);
struct device *dev = ice_pf_to_dev(pf);
u64 nvm_size;
nvm_size = pf->hw.flash.flash_size;
pf->nvm_region = devlink_region_create(devlink, &ice_nvm_region_ops, 1,
nvm_size);
if (IS_ERR(pf->nvm_region)) {
dev_err(dev, "failed to create NVM devlink region, err %ld\n",
PTR_ERR(pf->nvm_region));
pf->nvm_region = NULL;
}
pf->devcaps_region = devlink_region_create(devlink,
&ice_devcaps_region_ops, 10,
ICE_AQ_MAX_BUF_LEN);
if (IS_ERR(pf->devcaps_region)) {
dev_err(dev, "failed to create device-caps devlink region, err %ld\n",
PTR_ERR(pf->devcaps_region));
pf->devcaps_region = NULL;
}
}
/**
* ice_devlink_destroy_regions - Destroy devlink regions
* @pf: the PF device structure
*
* Remove previously created regions for this PF.
*/
void ice_devlink_destroy_regions(struct ice_pf *pf)
{
if (pf->nvm_region)
devlink_region_destroy(pf->nvm_region);
if (pf->devcaps_region)
devlink_region_destroy(pf->devcaps_region);
}
|