tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* Broadcom NetXtreme-C/E network driver.
2 *
3 * Copyright (c) 2017 Broadcom Limited
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation.
8 */
9
10#include <linux/pci.h>
11#include <linux/netdevice.h>
12#include <linux/vmalloc.h>
13#include <net/devlink.h>
14#include "bnxt_hsi.h"
15#include "bnxt.h"
16#include "bnxt_hwrm.h"
17#include "bnxt_vfr.h"
18#include "bnxt_devlink.h"
19#include "bnxt_ethtool.h"
20#include "bnxt_ulp.h"
21#include "bnxt_ptp.h"
22#include "bnxt_coredump.h"
23
24static void __bnxt_fw_recover(struct bnxt *bp)
25{
26 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state) ||
27 test_bit(BNXT_STATE_FW_NON_FATAL_COND, &bp->state))
28 bnxt_fw_reset(bp);
29 else
30 bnxt_fw_exception(bp);
31}
32
33static int
34bnxt_dl_flash_update(struct devlink *dl,
35 struct devlink_flash_update_params *params,
36 struct netlink_ext_ack *extack)
37{
38 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
39 int rc;
40
41 if (!BNXT_PF(bp)) {
42 NL_SET_ERR_MSG_MOD(extack,
43 "flash update not supported from a VF");
44 return -EPERM;
45 }
46
47 devlink_flash_update_status_notify(dl, "Preparing to flash", NULL, 0, 0);
48 rc = bnxt_flash_package_from_fw_obj(bp->dev, params->fw, 0);
49 if (!rc)
50 devlink_flash_update_status_notify(dl, "Flashing done", NULL, 0, 0);
51 else
52 devlink_flash_update_status_notify(dl, "Flashing failed", NULL, 0, 0);
53 return rc;
54}
55
56static int bnxt_hwrm_remote_dev_reset_set(struct bnxt *bp, bool remote_reset)
57{
58 struct hwrm_func_cfg_input *req;
59 int rc;
60
61 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
62 return -EOPNOTSUPP;
63
64 rc = hwrm_req_init(bp, req, HWRM_FUNC_CFG);
65 if (rc)
66 return rc;
67
68 req->fid = cpu_to_le16(0xffff);
69 req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_HOT_RESET_IF_SUPPORT);
70 if (remote_reset)
71 req->flags = cpu_to_le32(FUNC_CFG_REQ_FLAGS_HOT_RESET_IF_EN_DIS);
72
73 return hwrm_req_send(bp, req);
74}
75
76static char *bnxt_health_severity_str(enum bnxt_health_severity severity)
77{
78 switch (severity) {
79 case SEVERITY_NORMAL: return "normal";
80 case SEVERITY_WARNING: return "warning";
81 case SEVERITY_RECOVERABLE: return "recoverable";
82 case SEVERITY_FATAL: return "fatal";
83 default: return "unknown";
84 }
85}
86
87static char *bnxt_health_remedy_str(enum bnxt_health_remedy remedy)
88{
89 switch (remedy) {
90 case REMEDY_DEVLINK_RECOVER: return "devlink recover";
91 case REMEDY_POWER_CYCLE_DEVICE: return "device power cycle";
92 case REMEDY_POWER_CYCLE_HOST: return "host power cycle";
93 case REMEDY_FW_UPDATE: return "update firmware";
94 case REMEDY_HW_REPLACE: return "replace hardware";
95 default: return "unknown";
96 }
97}
98
99static int bnxt_fw_diagnose(struct devlink_health_reporter *reporter,
100 struct devlink_fmsg *fmsg,
101 struct netlink_ext_ack *extack)
102{
103 struct bnxt *bp = devlink_health_reporter_priv(reporter);
104 struct bnxt_fw_health *h = bp->fw_health;
105 u32 fw_status, fw_resets;
106 int rc;
107
108 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
109 return devlink_fmsg_string_pair_put(fmsg, "Status", "recovering");
110
111 if (!h->status_reliable)
112 return devlink_fmsg_string_pair_put(fmsg, "Status", "unknown");
113
114 mutex_lock(&h->lock);
115 fw_status = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG);
116 if (BNXT_FW_IS_BOOTING(fw_status)) {
117 rc = devlink_fmsg_string_pair_put(fmsg, "Status", "initializing");
118 if (rc)
119 goto unlock;
120 } else if (h->severity || fw_status != BNXT_FW_STATUS_HEALTHY) {
121 if (!h->severity) {
122 h->severity = SEVERITY_FATAL;
123 h->remedy = REMEDY_POWER_CYCLE_DEVICE;
124 h->diagnoses++;
125 devlink_health_report(h->fw_reporter,
126 "FW error diagnosed", h);
127 }
128 rc = devlink_fmsg_string_pair_put(fmsg, "Status", "error");
129 if (rc)
130 goto unlock;
131 rc = devlink_fmsg_u32_pair_put(fmsg, "Syndrome", fw_status);
132 if (rc)
133 goto unlock;
134 } else {
135 rc = devlink_fmsg_string_pair_put(fmsg, "Status", "healthy");
136 if (rc)
137 goto unlock;
138 }
139
140 rc = devlink_fmsg_string_pair_put(fmsg, "Severity",
141 bnxt_health_severity_str(h->severity));
142 if (rc)
143 goto unlock;
144
145 if (h->severity) {
146 rc = devlink_fmsg_string_pair_put(fmsg, "Remedy",
147 bnxt_health_remedy_str(h->remedy));
148 if (rc)
149 goto unlock;
150 if (h->remedy == REMEDY_DEVLINK_RECOVER) {
151 rc = devlink_fmsg_string_pair_put(fmsg, "Impact",
152 "traffic+ntuple_cfg");
153 if (rc)
154 goto unlock;
155 }
156 }
157
158unlock:
159 mutex_unlock(&h->lock);
160 if (rc || !h->resets_reliable)
161 return rc;
162
163 fw_resets = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
164 rc = devlink_fmsg_u32_pair_put(fmsg, "Resets", fw_resets);
165 if (rc)
166 return rc;
167 rc = devlink_fmsg_u32_pair_put(fmsg, "Arrests", h->arrests);
168 if (rc)
169 return rc;
170 rc = devlink_fmsg_u32_pair_put(fmsg, "Survivals", h->survivals);
171 if (rc)
172 return rc;
173 rc = devlink_fmsg_u32_pair_put(fmsg, "Discoveries", h->discoveries);
174 if (rc)
175 return rc;
176 rc = devlink_fmsg_u32_pair_put(fmsg, "Fatalities", h->fatalities);
177 if (rc)
178 return rc;
179 return devlink_fmsg_u32_pair_put(fmsg, "Diagnoses", h->diagnoses);
180}
181
182static int bnxt_fw_dump(struct devlink_health_reporter *reporter,
183 struct devlink_fmsg *fmsg, void *priv_ctx,
184 struct netlink_ext_ack *extack)
185{
186 struct bnxt *bp = devlink_health_reporter_priv(reporter);
187 u32 dump_len;
188 void *data;
189 int rc;
190
191 /* TODO: no firmware dump support in devlink_health_report() context */
192 if (priv_ctx)
193 return -EOPNOTSUPP;
194
195 dump_len = bnxt_get_coredump_length(bp, BNXT_DUMP_LIVE);
196 if (!dump_len)
197 return -EIO;
198
199 data = vmalloc(dump_len);
200 if (!data)
201 return -ENOMEM;
202
203 rc = bnxt_get_coredump(bp, BNXT_DUMP_LIVE, data, &dump_len);
204 if (!rc) {
205 rc = devlink_fmsg_pair_nest_start(fmsg, "core");
206 if (rc)
207 goto exit;
208 rc = devlink_fmsg_binary_pair_put(fmsg, "data", data, dump_len);
209 if (rc)
210 goto exit;
211 rc = devlink_fmsg_u32_pair_put(fmsg, "size", dump_len);
212 if (rc)
213 goto exit;
214 rc = devlink_fmsg_pair_nest_end(fmsg);
215 }
216
217exit:
218 vfree(data);
219 return rc;
220}
221
222static int bnxt_fw_recover(struct devlink_health_reporter *reporter,
223 void *priv_ctx,
224 struct netlink_ext_ack *extack)
225{
226 struct bnxt *bp = devlink_health_reporter_priv(reporter);
227
228 if (bp->fw_health->severity == SEVERITY_FATAL)
229 return -ENODEV;
230
231 set_bit(BNXT_STATE_RECOVER, &bp->state);
232 __bnxt_fw_recover(bp);
233
234 return -EINPROGRESS;
235}
236
237static const struct devlink_health_reporter_ops bnxt_dl_fw_reporter_ops = {
238 .name = "fw",
239 .diagnose = bnxt_fw_diagnose,
240 .dump = bnxt_fw_dump,
241 .recover = bnxt_fw_recover,
242};
243
244static struct devlink_health_reporter *
245__bnxt_dl_reporter_create(struct bnxt *bp,
246 const struct devlink_health_reporter_ops *ops)
247{
248 struct devlink_health_reporter *reporter;
249
250 reporter = devlink_health_reporter_create(bp->dl, ops, 0, bp);
251 if (IS_ERR(reporter)) {
252 netdev_warn(bp->dev, "Failed to create %s health reporter, rc = %ld\n",
253 ops->name, PTR_ERR(reporter));
254 return NULL;
255 }
256
257 return reporter;
258}
259
260void bnxt_dl_fw_reporters_create(struct bnxt *bp)
261{
262 struct bnxt_fw_health *fw_health = bp->fw_health;
263
264 if (fw_health && !fw_health->fw_reporter)
265 fw_health->fw_reporter = __bnxt_dl_reporter_create(bp, &bnxt_dl_fw_reporter_ops);
266}
267
268void bnxt_dl_fw_reporters_destroy(struct bnxt *bp)
269{
270 struct bnxt_fw_health *fw_health = bp->fw_health;
271
272 if (fw_health && fw_health->fw_reporter) {
273 devlink_health_reporter_destroy(fw_health->fw_reporter);
274 fw_health->fw_reporter = NULL;
275 }
276}
277
278void bnxt_devlink_health_fw_report(struct bnxt *bp)
279{
280 struct bnxt_fw_health *fw_health = bp->fw_health;
281 int rc;
282
283 if (!fw_health)
284 return;
285
286 if (!fw_health->fw_reporter) {
287 __bnxt_fw_recover(bp);
288 return;
289 }
290
291 mutex_lock(&fw_health->lock);
292 fw_health->severity = SEVERITY_RECOVERABLE;
293 fw_health->remedy = REMEDY_DEVLINK_RECOVER;
294 mutex_unlock(&fw_health->lock);
295 rc = devlink_health_report(fw_health->fw_reporter, "FW error reported",
296 fw_health);
297 if (rc == -ECANCELED)
298 __bnxt_fw_recover(bp);
299}
300
301void bnxt_dl_health_fw_status_update(struct bnxt *bp, bool healthy)
302{
303 struct bnxt_fw_health *fw_health = bp->fw_health;
304 u8 state;
305
306 mutex_lock(&fw_health->lock);
307 if (healthy) {
308 fw_health->severity = SEVERITY_NORMAL;
309 state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY;
310 } else {
311 fw_health->severity = SEVERITY_FATAL;
312 fw_health->remedy = REMEDY_POWER_CYCLE_DEVICE;
313 state = DEVLINK_HEALTH_REPORTER_STATE_ERROR;
314 }
315 mutex_unlock(&fw_health->lock);
316 devlink_health_reporter_state_update(fw_health->fw_reporter, state);
317}
318
319void bnxt_dl_health_fw_recovery_done(struct bnxt *bp)
320{
321 struct bnxt_dl *dl = devlink_priv(bp->dl);
322
323 devlink_health_reporter_recovery_done(bp->fw_health->fw_reporter);
324 bnxt_hwrm_remote_dev_reset_set(bp, dl->remote_reset);
325}
326
327static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
328 struct netlink_ext_ack *extack);
329
330static void
331bnxt_dl_livepatch_report_err(struct bnxt *bp, struct netlink_ext_ack *extack,
332 struct hwrm_fw_livepatch_output *resp)
333{
334 int err = ((struct hwrm_err_output *)resp)->cmd_err;
335
336 switch (err) {
337 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_OPCODE:
338 netdev_err(bp->dev, "Illegal live patch opcode");
339 NL_SET_ERR_MSG_MOD(extack, "Invalid opcode");
340 break;
341 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_SUPPORTED:
342 NL_SET_ERR_MSG_MOD(extack, "Live patch operation not supported");
343 break;
344 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_INSTALLED:
345 NL_SET_ERR_MSG_MOD(extack, "Live patch not found");
346 break;
347 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_PATCHED:
348 NL_SET_ERR_MSG_MOD(extack,
349 "Live patch deactivation failed. Firmware not patched.");
350 break;
351 case FW_LIVEPATCH_CMD_ERR_CODE_AUTH_FAIL:
352 NL_SET_ERR_MSG_MOD(extack, "Live patch not authenticated");
353 break;
354 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_HEADER:
355 NL_SET_ERR_MSG_MOD(extack, "Incompatible live patch");
356 break;
357 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_SIZE:
358 NL_SET_ERR_MSG_MOD(extack, "Live patch has invalid size");
359 break;
360 case FW_LIVEPATCH_CMD_ERR_CODE_ALREADY_PATCHED:
361 NL_SET_ERR_MSG_MOD(extack, "Live patch already applied");
362 break;
363 default:
364 netdev_err(bp->dev, "Unexpected live patch error: %d\n", err);
365 NL_SET_ERR_MSG_MOD(extack, "Failed to activate live patch");
366 break;
367 }
368}
369
370/* Live patch status in NVM */
371#define BNXT_LIVEPATCH_NOT_INSTALLED 0
372#define BNXT_LIVEPATCH_INSTALLED FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL
373#define BNXT_LIVEPATCH_REMOVED FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE
374#define BNXT_LIVEPATCH_MASK (FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL | \
375 FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE)
376#define BNXT_LIVEPATCH_ACTIVATED BNXT_LIVEPATCH_MASK
377
378#define BNXT_LIVEPATCH_STATE(flags) ((flags) & BNXT_LIVEPATCH_MASK)
379
380static int
381bnxt_dl_livepatch_activate(struct bnxt *bp, struct netlink_ext_ack *extack)
382{
383 struct hwrm_fw_livepatch_query_output *query_resp;
384 struct hwrm_fw_livepatch_query_input *query_req;
385 struct hwrm_fw_livepatch_output *patch_resp;
386 struct hwrm_fw_livepatch_input *patch_req;
387 u16 flags, live_patch_state;
388 bool activated = false;
389 u32 installed = 0;
390 u8 target;
391 int rc;
392
393 if (~bp->fw_cap & BNXT_FW_CAP_LIVEPATCH) {
394 NL_SET_ERR_MSG_MOD(extack, "Device does not support live patch");
395 return -EOPNOTSUPP;
396 }
397
398 rc = hwrm_req_init(bp, query_req, HWRM_FW_LIVEPATCH_QUERY);
399 if (rc)
400 return rc;
401 query_resp = hwrm_req_hold(bp, query_req);
402
403 rc = hwrm_req_init(bp, patch_req, HWRM_FW_LIVEPATCH);
404 if (rc) {
405 hwrm_req_drop(bp, query_req);
406 return rc;
407 }
408 patch_req->loadtype = FW_LIVEPATCH_REQ_LOADTYPE_NVM_INSTALL;
409 patch_resp = hwrm_req_hold(bp, patch_req);
410
411 for (target = 1; target <= FW_LIVEPATCH_REQ_FW_TARGET_LAST; target++) {
412 query_req->fw_target = target;
413 rc = hwrm_req_send(bp, query_req);
414 if (rc) {
415 NL_SET_ERR_MSG_MOD(extack, "Failed to query packages");
416 break;
417 }
418
419 flags = le16_to_cpu(query_resp->status_flags);
420 live_patch_state = BNXT_LIVEPATCH_STATE(flags);
421
422 if (live_patch_state == BNXT_LIVEPATCH_NOT_INSTALLED)
423 continue;
424
425 if (live_patch_state == BNXT_LIVEPATCH_ACTIVATED) {
426 activated = true;
427 continue;
428 }
429
430 if (live_patch_state == BNXT_LIVEPATCH_INSTALLED)
431 patch_req->opcode = FW_LIVEPATCH_REQ_OPCODE_ACTIVATE;
432 else if (live_patch_state == BNXT_LIVEPATCH_REMOVED)
433 patch_req->opcode = FW_LIVEPATCH_REQ_OPCODE_DEACTIVATE;
434
435 patch_req->fw_target = target;
436 rc = hwrm_req_send(bp, patch_req);
437 if (rc) {
438 bnxt_dl_livepatch_report_err(bp, extack, patch_resp);
439 break;
440 }
441 installed++;
442 }
443
444 if (!rc && !installed) {
445 if (activated) {
446 NL_SET_ERR_MSG_MOD(extack, "Live patch already activated");
447 rc = -EEXIST;
448 } else {
449 NL_SET_ERR_MSG_MOD(extack, "No live patches found");
450 rc = -ENOENT;
451 }
452 }
453 hwrm_req_drop(bp, query_req);
454 hwrm_req_drop(bp, patch_req);
455 return rc;
456}
457
458static int bnxt_dl_reload_down(struct devlink *dl, bool netns_change,
459 enum devlink_reload_action action,
460 enum devlink_reload_limit limit,
461 struct netlink_ext_ack *extack)
462{
463 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
464 int rc = 0;
465
466 switch (action) {
467 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: {
468 rtnl_lock();
469 if (bnxt_sriov_cfg(bp)) {
470 NL_SET_ERR_MSG_MOD(extack,
471 "reload is unsupported while VFs are allocated or being configured");
472 rtnl_unlock();
473 return -EOPNOTSUPP;
474 }
475 if (bp->dev->reg_state == NETREG_UNREGISTERED) {
476 rtnl_unlock();
477 return -ENODEV;
478 }
479 bnxt_ulp_stop(bp);
480 if (netif_running(bp->dev)) {
481 rc = bnxt_close_nic(bp, true, true);
482 if (rc) {
483 NL_SET_ERR_MSG_MOD(extack, "Failed to close");
484 dev_close(bp->dev);
485 rtnl_unlock();
486 break;
487 }
488 }
489 bnxt_vf_reps_free(bp);
490 rc = bnxt_hwrm_func_drv_unrgtr(bp);
491 if (rc) {
492 NL_SET_ERR_MSG_MOD(extack, "Failed to deregister");
493 if (netif_running(bp->dev))
494 dev_close(bp->dev);
495 rtnl_unlock();
496 break;
497 }
498 bnxt_cancel_reservations(bp, false);
499 bnxt_free_ctx_mem(bp);
500 kfree(bp->ctx);
501 bp->ctx = NULL;
502 break;
503 }
504 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: {
505 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET)
506 return bnxt_dl_livepatch_activate(bp, extack);
507 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET) {
508 NL_SET_ERR_MSG_MOD(extack, "Device not capable, requires reboot");
509 return -EOPNOTSUPP;
510 }
511 if (!bnxt_hwrm_reset_permitted(bp)) {
512 NL_SET_ERR_MSG_MOD(extack,
513 "Reset denied by firmware, it may be inhibited by remote driver");
514 return -EPERM;
515 }
516 rtnl_lock();
517 if (bp->dev->reg_state == NETREG_UNREGISTERED) {
518 rtnl_unlock();
519 return -ENODEV;
520 }
521 if (netif_running(bp->dev))
522 set_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
523 rc = bnxt_hwrm_firmware_reset(bp->dev,
524 FW_RESET_REQ_EMBEDDED_PROC_TYPE_CHIP,
525 FW_RESET_REQ_SELFRST_STATUS_SELFRSTASAP,
526 FW_RESET_REQ_FLAGS_RESET_GRACEFUL |
527 FW_RESET_REQ_FLAGS_FW_ACTIVATION);
528 if (rc) {
529 NL_SET_ERR_MSG_MOD(extack, "Failed to activate firmware");
530 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
531 rtnl_unlock();
532 }
533 break;
534 }
535 default:
536 rc = -EOPNOTSUPP;
537 }
538
539 return rc;
540}
541
542static int bnxt_dl_reload_up(struct devlink *dl, enum devlink_reload_action action,
543 enum devlink_reload_limit limit, u32 *actions_performed,
544 struct netlink_ext_ack *extack)
545{
546 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
547 int rc = 0;
548
549 *actions_performed = 0;
550 switch (action) {
551 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: {
552 bnxt_fw_init_one(bp);
553 bnxt_vf_reps_alloc(bp);
554 if (netif_running(bp->dev))
555 rc = bnxt_open_nic(bp, true, true);
556 bnxt_ulp_start(bp, rc);
557 if (!rc) {
558 bnxt_reenable_sriov(bp);
559 bnxt_ptp_reapply_pps(bp);
560 }
561 break;
562 }
563 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: {
564 unsigned long start = jiffies;
565 unsigned long timeout = start + BNXT_DFLT_FW_RST_MAX_DSECS * HZ / 10;
566
567 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET)
568 break;
569 if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)
570 timeout = start + bp->fw_health->normal_func_wait_dsecs * HZ / 10;
571 if (!netif_running(bp->dev))
572 NL_SET_ERR_MSG_MOD(extack,
573 "Device is closed, not waiting for reset notice that will never come");
574 rtnl_unlock();
575 while (test_bit(BNXT_STATE_FW_ACTIVATE, &bp->state)) {
576 if (time_after(jiffies, timeout)) {
577 NL_SET_ERR_MSG_MOD(extack, "Activation incomplete");
578 rc = -ETIMEDOUT;
579 break;
580 }
581 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) {
582 NL_SET_ERR_MSG_MOD(extack, "Activation aborted");
583 rc = -ENODEV;
584 break;
585 }
586 msleep(50);
587 }
588 rtnl_lock();
589 if (!rc)
590 *actions_performed |= BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT);
591 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
592 break;
593 }
594 default:
595 return -EOPNOTSUPP;
596 }
597
598 if (!rc) {
599 bnxt_print_device_info(bp);
600 if (netif_running(bp->dev)) {
601 mutex_lock(&bp->link_lock);
602 bnxt_report_link(bp);
603 mutex_unlock(&bp->link_lock);
604 }
605 *actions_performed |= BIT(action);
606 } else if (netif_running(bp->dev)) {
607 dev_close(bp->dev);
608 }
609 rtnl_unlock();
610 return rc;
611}
612
613static const struct devlink_ops bnxt_dl_ops = {
614#ifdef CONFIG_BNXT_SRIOV
615 .eswitch_mode_set = bnxt_dl_eswitch_mode_set,
616 .eswitch_mode_get = bnxt_dl_eswitch_mode_get,
617#endif /* CONFIG_BNXT_SRIOV */
618 .info_get = bnxt_dl_info_get,
619 .flash_update = bnxt_dl_flash_update,
620 .reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT) |
621 BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE),
622 .reload_limits = BIT(DEVLINK_RELOAD_LIMIT_NO_RESET),
623 .reload_down = bnxt_dl_reload_down,
624 .reload_up = bnxt_dl_reload_up,
625};
626
627static const struct devlink_ops bnxt_vf_dl_ops;
628
629enum bnxt_dl_param_id {
630 BNXT_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
631 BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
632};
633
634static const struct bnxt_dl_nvm_param nvm_params[] = {
635 {DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, NVM_OFF_ENABLE_SRIOV,
636 BNXT_NVM_SHARED_CFG, 1, 1},
637 {DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, NVM_OFF_IGNORE_ARI,
638 BNXT_NVM_SHARED_CFG, 1, 1},
639 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
640 NVM_OFF_MSIX_VEC_PER_PF_MAX, BNXT_NVM_SHARED_CFG, 10, 4},
641 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
642 NVM_OFF_MSIX_VEC_PER_PF_MIN, BNXT_NVM_SHARED_CFG, 7, 4},
643 {BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, NVM_OFF_DIS_GRE_VER_CHECK,
644 BNXT_NVM_SHARED_CFG, 1, 1},
645};
646
647union bnxt_nvm_data {
648 u8 val8;
649 __le32 val32;
650};
651
652static void bnxt_copy_to_nvm_data(union bnxt_nvm_data *dst,
653 union devlink_param_value *src,
654 int nvm_num_bits, int dl_num_bytes)
655{
656 u32 val32 = 0;
657
658 if (nvm_num_bits == 1) {
659 dst->val8 = src->vbool;
660 return;
661 }
662 if (dl_num_bytes == 4)
663 val32 = src->vu32;
664 else if (dl_num_bytes == 2)
665 val32 = (u32)src->vu16;
666 else if (dl_num_bytes == 1)
667 val32 = (u32)src->vu8;
668 dst->val32 = cpu_to_le32(val32);
669}
670
671static void bnxt_copy_from_nvm_data(union devlink_param_value *dst,
672 union bnxt_nvm_data *src,
673 int nvm_num_bits, int dl_num_bytes)
674{
675 u32 val32;
676
677 if (nvm_num_bits == 1) {
678 dst->vbool = src->val8;
679 return;
680 }
681 val32 = le32_to_cpu(src->val32);
682 if (dl_num_bytes == 4)
683 dst->vu32 = val32;
684 else if (dl_num_bytes == 2)
685 dst->vu16 = (u16)val32;
686 else if (dl_num_bytes == 1)
687 dst->vu8 = (u8)val32;
688}
689
690static int bnxt_hwrm_get_nvm_cfg_ver(struct bnxt *bp, u32 *nvm_cfg_ver)
691{
692 struct hwrm_nvm_get_variable_input *req;
693 u16 bytes = BNXT_NVM_CFG_VER_BYTES;
694 u16 bits = BNXT_NVM_CFG_VER_BITS;
695 union devlink_param_value ver;
696 union bnxt_nvm_data *data;
697 dma_addr_t data_dma_addr;
698 int rc, i = 2;
699 u16 dim = 1;
700
701 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE);
702 if (rc)
703 return rc;
704
705 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr);
706 if (!data) {
707 rc = -ENOMEM;
708 goto exit;
709 }
710
711 /* earlier devices present as an array of raw bytes */
712 if (!BNXT_CHIP_P5(bp)) {
713 dim = 0;
714 i = 0;
715 bits *= 3; /* array of 3 version components */
716 bytes *= 4; /* copy whole word */
717 }
718
719 hwrm_req_hold(bp, req);
720 req->dest_data_addr = cpu_to_le64(data_dma_addr);
721 req->data_len = cpu_to_le16(bits);
722 req->option_num = cpu_to_le16(NVM_OFF_NVM_CFG_VER);
723 req->dimensions = cpu_to_le16(dim);
724
725 while (i >= 0) {
726 req->index_0 = cpu_to_le16(i--);
727 rc = hwrm_req_send_silent(bp, req);
728 if (rc)
729 goto exit;
730 bnxt_copy_from_nvm_data(&ver, data, bits, bytes);
731
732 if (BNXT_CHIP_P5(bp)) {
733 *nvm_cfg_ver <<= 8;
734 *nvm_cfg_ver |= ver.vu8;
735 } else {
736 *nvm_cfg_ver = ver.vu32;
737 }
738 }
739
740exit:
741 hwrm_req_drop(bp, req);
742 return rc;
743}
744
745static int bnxt_dl_info_put(struct bnxt *bp, struct devlink_info_req *req,
746 enum bnxt_dl_version_type type, const char *key,
747 char *buf)
748{
749 if (!strlen(buf))
750 return 0;
751
752 if ((bp->flags & BNXT_FLAG_CHIP_P5) &&
753 (!strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_NCSI) ||
754 !strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_ROCE)))
755 return 0;
756
757 switch (type) {
758 case BNXT_VERSION_FIXED:
759 return devlink_info_version_fixed_put(req, key, buf);
760 case BNXT_VERSION_RUNNING:
761 return devlink_info_version_running_put(req, key, buf);
762 case BNXT_VERSION_STORED:
763 return devlink_info_version_stored_put(req, key, buf);
764 }
765 return 0;
766}
767
768#define BNXT_FW_SRT_PATCH "fw.srt.patch"
769#define BNXT_FW_CRT_PATCH "fw.crt.patch"
770
771static int bnxt_dl_livepatch_info_put(struct bnxt *bp,
772 struct devlink_info_req *req,
773 const char *key)
774{
775 struct hwrm_fw_livepatch_query_input *query;
776 struct hwrm_fw_livepatch_query_output *resp;
777 u16 flags;
778 int rc;
779
780 if (~bp->fw_cap & BNXT_FW_CAP_LIVEPATCH)
781 return 0;
782
783 rc = hwrm_req_init(bp, query, HWRM_FW_LIVEPATCH_QUERY);
784 if (rc)
785 return rc;
786
787 if (!strcmp(key, BNXT_FW_SRT_PATCH))
788 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_SECURE_FW;
789 else if (!strcmp(key, BNXT_FW_CRT_PATCH))
790 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_COMMON_FW;
791 else
792 goto exit;
793
794 resp = hwrm_req_hold(bp, query);
795 rc = hwrm_req_send(bp, query);
796 if (rc)
797 goto exit;
798
799 flags = le16_to_cpu(resp->status_flags);
800 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE) {
801 resp->active_ver[sizeof(resp->active_ver) - 1] = '\0';
802 rc = devlink_info_version_running_put(req, key, resp->active_ver);
803 if (rc)
804 goto exit;
805 }
806
807 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL) {
808 resp->install_ver[sizeof(resp->install_ver) - 1] = '\0';
809 rc = devlink_info_version_stored_put(req, key, resp->install_ver);
810 if (rc)
811 goto exit;
812 }
813
814exit:
815 hwrm_req_drop(bp, query);
816 return rc;
817}
818
819#define HWRM_FW_VER_STR_LEN 16
820
821static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
822 struct netlink_ext_ack *extack)
823{
824 struct hwrm_nvm_get_dev_info_output nvm_dev_info;
825 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
826 struct hwrm_ver_get_output *ver_resp;
827 char mgmt_ver[FW_VER_STR_LEN];
828 char roce_ver[FW_VER_STR_LEN];
829 char ncsi_ver[FW_VER_STR_LEN];
830 char buf[32];
831 u32 ver = 0;
832 int rc;
833
834 rc = devlink_info_driver_name_put(req, DRV_MODULE_NAME);
835 if (rc)
836 return rc;
837
838 if (BNXT_PF(bp) && (bp->flags & BNXT_FLAG_DSN_VALID)) {
839 sprintf(buf, "%02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X",
840 bp->dsn[7], bp->dsn[6], bp->dsn[5], bp->dsn[4],
841 bp->dsn[3], bp->dsn[2], bp->dsn[1], bp->dsn[0]);
842 rc = devlink_info_serial_number_put(req, buf);
843 if (rc)
844 return rc;
845 }
846
847 if (strlen(bp->board_serialno)) {
848 rc = devlink_info_board_serial_number_put(req, bp->board_serialno);
849 if (rc)
850 return rc;
851 }
852
853 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
854 DEVLINK_INFO_VERSION_GENERIC_BOARD_ID,
855 bp->board_partno);
856 if (rc)
857 return rc;
858
859 sprintf(buf, "%X", bp->chip_num);
860 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
861 DEVLINK_INFO_VERSION_GENERIC_ASIC_ID, buf);
862 if (rc)
863 return rc;
864
865 ver_resp = &bp->ver_resp;
866 sprintf(buf, "%c%d", 'A' + ver_resp->chip_rev, ver_resp->chip_metal);
867 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
868 DEVLINK_INFO_VERSION_GENERIC_ASIC_REV, buf);
869 if (rc)
870 return rc;
871
872 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
873 DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
874 bp->nvm_cfg_ver);
875 if (rc)
876 return rc;
877
878 buf[0] = 0;
879 strncat(buf, ver_resp->active_pkg_name, HWRM_FW_VER_STR_LEN);
880 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
881 DEVLINK_INFO_VERSION_GENERIC_FW, buf);
882 if (rc)
883 return rc;
884
885 if (BNXT_PF(bp) && !bnxt_hwrm_get_nvm_cfg_ver(bp, &ver)) {
886 sprintf(buf, "%d.%d.%d", (ver >> 16) & 0xff, (ver >> 8) & 0xff,
887 ver & 0xff);
888 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
889 DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
890 buf);
891 if (rc)
892 return rc;
893 }
894
895 if (ver_resp->flags & VER_GET_RESP_FLAGS_EXT_VER_AVAIL) {
896 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
897 ver_resp->hwrm_fw_major, ver_resp->hwrm_fw_minor,
898 ver_resp->hwrm_fw_build, ver_resp->hwrm_fw_patch);
899
900 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
901 ver_resp->mgmt_fw_major, ver_resp->mgmt_fw_minor,
902 ver_resp->mgmt_fw_build, ver_resp->mgmt_fw_patch);
903
904 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
905 ver_resp->roce_fw_major, ver_resp->roce_fw_minor,
906 ver_resp->roce_fw_build, ver_resp->roce_fw_patch);
907 } else {
908 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
909 ver_resp->hwrm_fw_maj_8b, ver_resp->hwrm_fw_min_8b,
910 ver_resp->hwrm_fw_bld_8b, ver_resp->hwrm_fw_rsvd_8b);
911
912 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
913 ver_resp->mgmt_fw_maj_8b, ver_resp->mgmt_fw_min_8b,
914 ver_resp->mgmt_fw_bld_8b, ver_resp->mgmt_fw_rsvd_8b);
915
916 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
917 ver_resp->roce_fw_maj_8b, ver_resp->roce_fw_min_8b,
918 ver_resp->roce_fw_bld_8b, ver_resp->roce_fw_rsvd_8b);
919 }
920 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
921 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
922 if (rc)
923 return rc;
924
925 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
926 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API,
927 bp->hwrm_ver_supp);
928 if (rc)
929 return rc;
930
931 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
932 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
933 if (rc)
934 return rc;
935
936 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
937 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
938 if (rc)
939 return rc;
940
941 rc = bnxt_hwrm_nvm_get_dev_info(bp, &nvm_dev_info);
942 if (rc ||
943 !(nvm_dev_info.flags & NVM_GET_DEV_INFO_RESP_FLAGS_FW_VER_VALID)) {
944 if (!bnxt_get_pkginfo(bp->dev, buf, sizeof(buf)))
945 return bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
946 DEVLINK_INFO_VERSION_GENERIC_FW,
947 buf);
948 return 0;
949 }
950
951 buf[0] = 0;
952 strncat(buf, nvm_dev_info.pkg_name, HWRM_FW_VER_STR_LEN);
953 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
954 DEVLINK_INFO_VERSION_GENERIC_FW, buf);
955 if (rc)
956 return rc;
957
958 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
959 nvm_dev_info.hwrm_fw_major, nvm_dev_info.hwrm_fw_minor,
960 nvm_dev_info.hwrm_fw_build, nvm_dev_info.hwrm_fw_patch);
961 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
962 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
963 if (rc)
964 return rc;
965
966 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
967 nvm_dev_info.mgmt_fw_major, nvm_dev_info.mgmt_fw_minor,
968 nvm_dev_info.mgmt_fw_build, nvm_dev_info.mgmt_fw_patch);
969 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
970 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
971 if (rc)
972 return rc;
973
974 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
975 nvm_dev_info.roce_fw_major, nvm_dev_info.roce_fw_minor,
976 nvm_dev_info.roce_fw_build, nvm_dev_info.roce_fw_patch);
977 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
978 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
979 if (rc)
980 return rc;
981
982 rc = bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_SRT_PATCH);
983 if (rc)
984 return rc;
985 return bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_CRT_PATCH);
986
987}
988
989static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg,
990 union devlink_param_value *val)
991{
992 struct hwrm_nvm_get_variable_input *req = msg;
993 struct bnxt_dl_nvm_param nvm_param;
994 struct hwrm_err_output *resp;
995 union bnxt_nvm_data *data;
996 dma_addr_t data_dma_addr;
997 int idx = 0, rc, i;
998
999 /* Get/Set NVM CFG parameter is supported only on PFs */
1000 if (BNXT_VF(bp)) {
1001 hwrm_req_drop(bp, req);
1002 return -EPERM;
1003 }
1004
1005 for (i = 0; i < ARRAY_SIZE(nvm_params); i++) {
1006 if (nvm_params[i].id == param_id) {
1007 nvm_param = nvm_params[i];
1008 break;
1009 }
1010 }
1011
1012 if (i == ARRAY_SIZE(nvm_params)) {
1013 hwrm_req_drop(bp, req);
1014 return -EOPNOTSUPP;
1015 }
1016
1017 if (nvm_param.dir_type == BNXT_NVM_PORT_CFG)
1018 idx = bp->pf.port_id;
1019 else if (nvm_param.dir_type == BNXT_NVM_FUNC_CFG)
1020 idx = bp->pf.fw_fid - BNXT_FIRST_PF_FID;
1021
1022 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr);
1023
1024 if (!data) {
1025 hwrm_req_drop(bp, req);
1026 return -ENOMEM;
1027 }
1028
1029 req->dest_data_addr = cpu_to_le64(data_dma_addr);
1030 req->data_len = cpu_to_le16(nvm_param.nvm_num_bits);
1031 req->option_num = cpu_to_le16(nvm_param.offset);
1032 req->index_0 = cpu_to_le16(idx);
1033 if (idx)
1034 req->dimensions = cpu_to_le16(1);
1035
1036 resp = hwrm_req_hold(bp, req);
1037 if (req->req_type == cpu_to_le16(HWRM_NVM_SET_VARIABLE)) {
1038 bnxt_copy_to_nvm_data(data, val, nvm_param.nvm_num_bits,
1039 nvm_param.dl_num_bytes);
1040 rc = hwrm_req_send(bp, msg);
1041 } else {
1042 rc = hwrm_req_send_silent(bp, msg);
1043 if (!rc) {
1044 bnxt_copy_from_nvm_data(val, data,
1045 nvm_param.nvm_num_bits,
1046 nvm_param.dl_num_bytes);
1047 } else {
1048 if (resp->cmd_err ==
1049 NVM_GET_VARIABLE_CMD_ERR_CODE_VAR_NOT_EXIST)
1050 rc = -EOPNOTSUPP;
1051 }
1052 }
1053 hwrm_req_drop(bp, req);
1054 if (rc == -EACCES)
1055 netdev_err(bp->dev, "PF does not have admin privileges to modify NVM config\n");
1056 return rc;
1057}
1058
1059static int bnxt_dl_nvm_param_get(struct devlink *dl, u32 id,
1060 struct devlink_param_gset_ctx *ctx)
1061{
1062 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1063 struct hwrm_nvm_get_variable_input *req;
1064 int rc;
1065
1066 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE);
1067 if (rc)
1068 return rc;
1069
1070 rc = bnxt_hwrm_nvm_req(bp, id, req, &ctx->val);
1071 if (!rc && id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
1072 ctx->val.vbool = !ctx->val.vbool;
1073
1074 return rc;
1075}
1076
1077static int bnxt_dl_nvm_param_set(struct devlink *dl, u32 id,
1078 struct devlink_param_gset_ctx *ctx)
1079{
1080 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1081 struct hwrm_nvm_set_variable_input *req;
1082 int rc;
1083
1084 rc = hwrm_req_init(bp, req, HWRM_NVM_SET_VARIABLE);
1085 if (rc)
1086 return rc;
1087
1088 if (id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
1089 ctx->val.vbool = !ctx->val.vbool;
1090
1091 return bnxt_hwrm_nvm_req(bp, id, req, &ctx->val);
1092}
1093
1094static int bnxt_dl_msix_validate(struct devlink *dl, u32 id,
1095 union devlink_param_value val,
1096 struct netlink_ext_ack *extack)
1097{
1098 int max_val = -1;
1099
1100 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX)
1101 max_val = BNXT_MSIX_VEC_MAX;
1102
1103 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN)
1104 max_val = BNXT_MSIX_VEC_MIN_MAX;
1105
1106 if (val.vu32 > max_val) {
1107 NL_SET_ERR_MSG_MOD(extack, "MSIX value is exceeding the range");
1108 return -EINVAL;
1109 }
1110
1111 return 0;
1112}
1113
1114static int bnxt_remote_dev_reset_get(struct devlink *dl, u32 id,
1115 struct devlink_param_gset_ctx *ctx)
1116{
1117 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1118
1119 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
1120 return -EOPNOTSUPP;
1121
1122 ctx->val.vbool = bnxt_dl_get_remote_reset(dl);
1123 return 0;
1124}
1125
1126static int bnxt_remote_dev_reset_set(struct devlink *dl, u32 id,
1127 struct devlink_param_gset_ctx *ctx)
1128{
1129 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1130 int rc;
1131
1132 rc = bnxt_hwrm_remote_dev_reset_set(bp, ctx->val.vbool);
1133 if (rc)
1134 return rc;
1135
1136 bnxt_dl_set_remote_reset(dl, ctx->val.vbool);
1137 return rc;
1138}
1139
1140static const struct devlink_param bnxt_dl_params[] = {
1141 DEVLINK_PARAM_GENERIC(ENABLE_SRIOV,
1142 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1143 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1144 NULL),
1145 DEVLINK_PARAM_GENERIC(IGNORE_ARI,
1146 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1147 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1148 NULL),
1149 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MAX,
1150 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1151 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1152 bnxt_dl_msix_validate),
1153 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MIN,
1154 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1155 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1156 bnxt_dl_msix_validate),
1157 DEVLINK_PARAM_DRIVER(BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
1158 "gre_ver_check", DEVLINK_PARAM_TYPE_BOOL,
1159 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1160 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1161 NULL),
1162 /* keep REMOTE_DEV_RESET last, it is excluded based on caps */
1163 DEVLINK_PARAM_GENERIC(ENABLE_REMOTE_DEV_RESET,
1164 BIT(DEVLINK_PARAM_CMODE_RUNTIME),
1165 bnxt_remote_dev_reset_get,
1166 bnxt_remote_dev_reset_set, NULL),
1167};
1168
1169static int bnxt_dl_params_register(struct bnxt *bp)
1170{
1171 int num_params = ARRAY_SIZE(bnxt_dl_params);
1172 int rc;
1173
1174 if (bp->hwrm_spec_code < 0x10600)
1175 return 0;
1176
1177 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
1178 num_params--;
1179
1180 rc = devlink_params_register(bp->dl, bnxt_dl_params, num_params);
1181 if (rc)
1182 netdev_warn(bp->dev, "devlink_params_register failed. rc=%d\n",
1183 rc);
1184 return rc;
1185}
1186
1187static void bnxt_dl_params_unregister(struct bnxt *bp)
1188{
1189 int num_params = ARRAY_SIZE(bnxt_dl_params);
1190
1191 if (bp->hwrm_spec_code < 0x10600)
1192 return;
1193
1194 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
1195 num_params--;
1196
1197 devlink_params_unregister(bp->dl, bnxt_dl_params, num_params);
1198}
1199
1200int bnxt_dl_register(struct bnxt *bp)
1201{
1202 const struct devlink_ops *devlink_ops;
1203 struct devlink_port_attrs attrs = {};
1204 struct bnxt_dl *bp_dl;
1205 struct devlink *dl;
1206 int rc;
1207
1208 if (BNXT_PF(bp))
1209 devlink_ops = &bnxt_dl_ops;
1210 else
1211 devlink_ops = &bnxt_vf_dl_ops;
1212
1213 dl = devlink_alloc(devlink_ops, sizeof(struct bnxt_dl), &bp->pdev->dev);
1214 if (!dl) {
1215 netdev_warn(bp->dev, "devlink_alloc failed\n");
1216 return -ENOMEM;
1217 }
1218
1219 bp->dl = dl;
1220 bp_dl = devlink_priv(dl);
1221 bp_dl->bp = bp;
1222 bnxt_dl_set_remote_reset(dl, true);
1223
1224 /* Add switchdev eswitch mode setting, if SRIOV supported */
1225 if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV) &&
1226 bp->hwrm_spec_code > 0x10803)
1227 bp->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY;
1228
1229 if (!BNXT_PF(bp))
1230 goto out;
1231
1232 attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
1233 attrs.phys.port_number = bp->pf.port_id;
1234 memcpy(attrs.switch_id.id, bp->dsn, sizeof(bp->dsn));
1235 attrs.switch_id.id_len = sizeof(bp->dsn);
1236 devlink_port_attrs_set(&bp->dl_port, &attrs);
1237 rc = devlink_port_register(dl, &bp->dl_port, bp->pf.port_id);
1238 if (rc) {
1239 netdev_err(bp->dev, "devlink_port_register failed\n");
1240 goto err_dl_free;
1241 }
1242
1243 rc = bnxt_dl_params_register(bp);
1244 if (rc)
1245 goto err_dl_port_unreg;
1246
1247out:
1248 devlink_register(dl);
1249 return 0;
1250
1251err_dl_port_unreg:
1252 devlink_port_unregister(&bp->dl_port);
1253err_dl_free:
1254 devlink_free(dl);
1255 return rc;
1256}
1257
1258void bnxt_dl_unregister(struct bnxt *bp)
1259{
1260 struct devlink *dl = bp->dl;
1261
1262 devlink_unregister(dl);
1263 if (BNXT_PF(bp)) {
1264 bnxt_dl_params_unregister(bp);
1265 devlink_port_unregister(&bp->dl_port);
1266 }
1267 devlink_free(dl);
1268}