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 #include "bnxt_nvm_defs.h"
24
__bnxt_fw_recover(struct bnxt * bp)25 static void __bnxt_fw_recover(struct bnxt *bp)
26 {
27 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state) ||
28 test_bit(BNXT_STATE_FW_NON_FATAL_COND, &bp->state))
29 bnxt_fw_reset(bp);
30 else
31 bnxt_fw_exception(bp);
32 }
33
34 static int
bnxt_dl_flash_update(struct devlink * dl,struct devlink_flash_update_params * params,struct netlink_ext_ack * extack)35 bnxt_dl_flash_update(struct devlink *dl,
36 struct devlink_flash_update_params *params,
37 struct netlink_ext_ack *extack)
38 {
39 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
40 int rc;
41
42 if (!BNXT_PF(bp)) {
43 NL_SET_ERR_MSG_MOD(extack,
44 "flash update not supported from a VF");
45 return -EPERM;
46 }
47
48 devlink_flash_update_status_notify(dl, "Preparing to flash", NULL, 0, 0);
49 rc = bnxt_flash_package_from_fw_obj(bp->dev, params->fw, 0, extack);
50 if (!rc)
51 devlink_flash_update_status_notify(dl, "Flashing done", NULL, 0, 0);
52 else
53 devlink_flash_update_status_notify(dl, "Flashing failed", NULL, 0, 0);
54 return rc;
55 }
56
bnxt_hwrm_remote_dev_reset_set(struct bnxt * bp,bool remote_reset)57 static int bnxt_hwrm_remote_dev_reset_set(struct bnxt *bp, bool remote_reset)
58 {
59 struct hwrm_func_cfg_input *req;
60 int rc;
61
62 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
63 return -EOPNOTSUPP;
64
65 rc = hwrm_req_init(bp, req, HWRM_FUNC_CFG);
66 if (rc)
67 return rc;
68
69 req->fid = cpu_to_le16(0xffff);
70 req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_HOT_RESET_IF_SUPPORT);
71 if (remote_reset)
72 req->flags = cpu_to_le32(FUNC_CFG_REQ_FLAGS_HOT_RESET_IF_EN_DIS);
73
74 return hwrm_req_send(bp, req);
75 }
76
bnxt_health_severity_str(enum bnxt_health_severity severity)77 static char *bnxt_health_severity_str(enum bnxt_health_severity severity)
78 {
79 switch (severity) {
80 case SEVERITY_NORMAL: return "normal";
81 case SEVERITY_WARNING: return "warning";
82 case SEVERITY_RECOVERABLE: return "recoverable";
83 case SEVERITY_FATAL: return "fatal";
84 default: return "unknown";
85 }
86 }
87
bnxt_health_remedy_str(enum bnxt_health_remedy remedy)88 static char *bnxt_health_remedy_str(enum bnxt_health_remedy remedy)
89 {
90 switch (remedy) {
91 case REMEDY_DEVLINK_RECOVER: return "devlink recover";
92 case REMEDY_POWER_CYCLE_DEVICE: return "device power cycle";
93 case REMEDY_POWER_CYCLE_HOST: return "host power cycle";
94 case REMEDY_FW_UPDATE: return "update firmware";
95 case REMEDY_HW_REPLACE: return "replace hardware";
96 default: return "unknown";
97 }
98 }
99
bnxt_fw_diagnose(struct devlink_health_reporter * reporter,struct devlink_fmsg * fmsg,struct netlink_ext_ack * extack)100 static int bnxt_fw_diagnose(struct devlink_health_reporter *reporter,
101 struct devlink_fmsg *fmsg,
102 struct netlink_ext_ack *extack)
103 {
104 struct bnxt *bp = devlink_health_reporter_priv(reporter);
105 struct bnxt_fw_health *h = bp->fw_health;
106 u32 fw_status, fw_resets;
107 int rc;
108
109 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
110 return devlink_fmsg_string_pair_put(fmsg, "Status", "recovering");
111
112 if (!h->status_reliable)
113 return devlink_fmsg_string_pair_put(fmsg, "Status", "unknown");
114
115 mutex_lock(&h->lock);
116 fw_status = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG);
117 if (BNXT_FW_IS_BOOTING(fw_status)) {
118 rc = devlink_fmsg_string_pair_put(fmsg, "Status", "initializing");
119 if (rc)
120 goto unlock;
121 } else if (h->severity || fw_status != BNXT_FW_STATUS_HEALTHY) {
122 if (!h->severity) {
123 h->severity = SEVERITY_FATAL;
124 h->remedy = REMEDY_POWER_CYCLE_DEVICE;
125 h->diagnoses++;
126 devlink_health_report(h->fw_reporter,
127 "FW error diagnosed", h);
128 }
129 rc = devlink_fmsg_string_pair_put(fmsg, "Status", "error");
130 if (rc)
131 goto unlock;
132 rc = devlink_fmsg_u32_pair_put(fmsg, "Syndrome", fw_status);
133 if (rc)
134 goto unlock;
135 } else {
136 rc = devlink_fmsg_string_pair_put(fmsg, "Status", "healthy");
137 if (rc)
138 goto unlock;
139 }
140
141 rc = devlink_fmsg_string_pair_put(fmsg, "Severity",
142 bnxt_health_severity_str(h->severity));
143 if (rc)
144 goto unlock;
145
146 if (h->severity) {
147 rc = devlink_fmsg_string_pair_put(fmsg, "Remedy",
148 bnxt_health_remedy_str(h->remedy));
149 if (rc)
150 goto unlock;
151 if (h->remedy == REMEDY_DEVLINK_RECOVER) {
152 rc = devlink_fmsg_string_pair_put(fmsg, "Impact",
153 "traffic+ntuple_cfg");
154 if (rc)
155 goto unlock;
156 }
157 }
158
159 unlock:
160 mutex_unlock(&h->lock);
161 if (rc || !h->resets_reliable)
162 return rc;
163
164 fw_resets = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
165 rc = devlink_fmsg_u32_pair_put(fmsg, "Resets", fw_resets);
166 if (rc)
167 return rc;
168 rc = devlink_fmsg_u32_pair_put(fmsg, "Arrests", h->arrests);
169 if (rc)
170 return rc;
171 rc = devlink_fmsg_u32_pair_put(fmsg, "Survivals", h->survivals);
172 if (rc)
173 return rc;
174 rc = devlink_fmsg_u32_pair_put(fmsg, "Discoveries", h->discoveries);
175 if (rc)
176 return rc;
177 rc = devlink_fmsg_u32_pair_put(fmsg, "Fatalities", h->fatalities);
178 if (rc)
179 return rc;
180 return devlink_fmsg_u32_pair_put(fmsg, "Diagnoses", h->diagnoses);
181 }
182
bnxt_fw_dump(struct devlink_health_reporter * reporter,struct devlink_fmsg * fmsg,void * priv_ctx,struct netlink_ext_ack * extack)183 static int bnxt_fw_dump(struct devlink_health_reporter *reporter,
184 struct devlink_fmsg *fmsg, void *priv_ctx,
185 struct netlink_ext_ack *extack)
186 {
187 struct bnxt *bp = devlink_health_reporter_priv(reporter);
188 u32 dump_len;
189 void *data;
190 int rc;
191
192 /* TODO: no firmware dump support in devlink_health_report() context */
193 if (priv_ctx)
194 return -EOPNOTSUPP;
195
196 dump_len = bnxt_get_coredump_length(bp, BNXT_DUMP_LIVE);
197 if (!dump_len)
198 return -EIO;
199
200 data = vmalloc(dump_len);
201 if (!data)
202 return -ENOMEM;
203
204 rc = bnxt_get_coredump(bp, BNXT_DUMP_LIVE, data, &dump_len);
205 if (!rc) {
206 rc = devlink_fmsg_pair_nest_start(fmsg, "core");
207 if (rc)
208 goto exit;
209 rc = devlink_fmsg_binary_pair_put(fmsg, "data", data, dump_len);
210 if (rc)
211 goto exit;
212 rc = devlink_fmsg_u32_pair_put(fmsg, "size", dump_len);
213 if (rc)
214 goto exit;
215 rc = devlink_fmsg_pair_nest_end(fmsg);
216 }
217
218 exit:
219 vfree(data);
220 return rc;
221 }
222
bnxt_fw_recover(struct devlink_health_reporter * reporter,void * priv_ctx,struct netlink_ext_ack * extack)223 static int bnxt_fw_recover(struct devlink_health_reporter *reporter,
224 void *priv_ctx,
225 struct netlink_ext_ack *extack)
226 {
227 struct bnxt *bp = devlink_health_reporter_priv(reporter);
228
229 if (bp->fw_health->severity == SEVERITY_FATAL)
230 return -ENODEV;
231
232 set_bit(BNXT_STATE_RECOVER, &bp->state);
233 __bnxt_fw_recover(bp);
234
235 return -EINPROGRESS;
236 }
237
238 static const struct devlink_health_reporter_ops bnxt_dl_fw_reporter_ops = {
239 .name = "fw",
240 .diagnose = bnxt_fw_diagnose,
241 .dump = bnxt_fw_dump,
242 .recover = bnxt_fw_recover,
243 };
244
245 static struct devlink_health_reporter *
__bnxt_dl_reporter_create(struct bnxt * bp,const struct devlink_health_reporter_ops * ops)246 __bnxt_dl_reporter_create(struct bnxt *bp,
247 const struct devlink_health_reporter_ops *ops)
248 {
249 struct devlink_health_reporter *reporter;
250
251 reporter = devlink_health_reporter_create(bp->dl, ops, 0, bp);
252 if (IS_ERR(reporter)) {
253 netdev_warn(bp->dev, "Failed to create %s health reporter, rc = %ld\n",
254 ops->name, PTR_ERR(reporter));
255 return NULL;
256 }
257
258 return reporter;
259 }
260
bnxt_dl_fw_reporters_create(struct bnxt * bp)261 void bnxt_dl_fw_reporters_create(struct bnxt *bp)
262 {
263 struct bnxt_fw_health *fw_health = bp->fw_health;
264
265 if (fw_health && !fw_health->fw_reporter)
266 fw_health->fw_reporter = __bnxt_dl_reporter_create(bp, &bnxt_dl_fw_reporter_ops);
267 }
268
bnxt_dl_fw_reporters_destroy(struct bnxt * bp)269 void bnxt_dl_fw_reporters_destroy(struct bnxt *bp)
270 {
271 struct bnxt_fw_health *fw_health = bp->fw_health;
272
273 if (fw_health && fw_health->fw_reporter) {
274 devlink_health_reporter_destroy(fw_health->fw_reporter);
275 fw_health->fw_reporter = NULL;
276 }
277 }
278
bnxt_devlink_health_fw_report(struct bnxt * bp)279 void bnxt_devlink_health_fw_report(struct bnxt *bp)
280 {
281 struct bnxt_fw_health *fw_health = bp->fw_health;
282 int rc;
283
284 if (!fw_health)
285 return;
286
287 if (!fw_health->fw_reporter) {
288 __bnxt_fw_recover(bp);
289 return;
290 }
291
292 mutex_lock(&fw_health->lock);
293 fw_health->severity = SEVERITY_RECOVERABLE;
294 fw_health->remedy = REMEDY_DEVLINK_RECOVER;
295 mutex_unlock(&fw_health->lock);
296 rc = devlink_health_report(fw_health->fw_reporter, "FW error reported",
297 fw_health);
298 if (rc == -ECANCELED)
299 __bnxt_fw_recover(bp);
300 }
301
bnxt_dl_health_fw_status_update(struct bnxt * bp,bool healthy)302 void bnxt_dl_health_fw_status_update(struct bnxt *bp, bool healthy)
303 {
304 struct bnxt_fw_health *fw_health = bp->fw_health;
305 u8 state;
306
307 mutex_lock(&fw_health->lock);
308 if (healthy) {
309 fw_health->severity = SEVERITY_NORMAL;
310 state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY;
311 } else {
312 fw_health->severity = SEVERITY_FATAL;
313 fw_health->remedy = REMEDY_POWER_CYCLE_DEVICE;
314 state = DEVLINK_HEALTH_REPORTER_STATE_ERROR;
315 }
316 mutex_unlock(&fw_health->lock);
317 devlink_health_reporter_state_update(fw_health->fw_reporter, state);
318 }
319
bnxt_dl_health_fw_recovery_done(struct bnxt * bp)320 void bnxt_dl_health_fw_recovery_done(struct bnxt *bp)
321 {
322 struct bnxt_dl *dl = devlink_priv(bp->dl);
323
324 devlink_health_reporter_recovery_done(bp->fw_health->fw_reporter);
325 bnxt_hwrm_remote_dev_reset_set(bp, dl->remote_reset);
326 }
327
328 static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
329 struct netlink_ext_ack *extack);
330
331 static void
bnxt_dl_livepatch_report_err(struct bnxt * bp,struct netlink_ext_ack * extack,struct hwrm_fw_livepatch_output * resp)332 bnxt_dl_livepatch_report_err(struct bnxt *bp, struct netlink_ext_ack *extack,
333 struct hwrm_fw_livepatch_output *resp)
334 {
335 int err = ((struct hwrm_err_output *)resp)->cmd_err;
336
337 switch (err) {
338 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_OPCODE:
339 netdev_err(bp->dev, "Illegal live patch opcode");
340 NL_SET_ERR_MSG_MOD(extack, "Invalid opcode");
341 break;
342 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_SUPPORTED:
343 NL_SET_ERR_MSG_MOD(extack, "Live patch operation not supported");
344 break;
345 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_INSTALLED:
346 NL_SET_ERR_MSG_MOD(extack, "Live patch not found");
347 break;
348 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_PATCHED:
349 NL_SET_ERR_MSG_MOD(extack,
350 "Live patch deactivation failed. Firmware not patched.");
351 break;
352 case FW_LIVEPATCH_CMD_ERR_CODE_AUTH_FAIL:
353 NL_SET_ERR_MSG_MOD(extack, "Live patch not authenticated");
354 break;
355 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_HEADER:
356 NL_SET_ERR_MSG_MOD(extack, "Incompatible live patch");
357 break;
358 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_SIZE:
359 NL_SET_ERR_MSG_MOD(extack, "Live patch has invalid size");
360 break;
361 case FW_LIVEPATCH_CMD_ERR_CODE_ALREADY_PATCHED:
362 NL_SET_ERR_MSG_MOD(extack, "Live patch already applied");
363 break;
364 default:
365 netdev_err(bp->dev, "Unexpected live patch error: %d\n", err);
366 NL_SET_ERR_MSG_MOD(extack, "Failed to activate live patch");
367 break;
368 }
369 }
370
371 /* Live patch status in NVM */
372 #define BNXT_LIVEPATCH_NOT_INSTALLED 0
373 #define BNXT_LIVEPATCH_INSTALLED FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL
374 #define BNXT_LIVEPATCH_REMOVED FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE
375 #define BNXT_LIVEPATCH_MASK (FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL | \
376 FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE)
377 #define BNXT_LIVEPATCH_ACTIVATED BNXT_LIVEPATCH_MASK
378
379 #define BNXT_LIVEPATCH_STATE(flags) ((flags) & BNXT_LIVEPATCH_MASK)
380
381 static int
bnxt_dl_livepatch_activate(struct bnxt * bp,struct netlink_ext_ack * extack)382 bnxt_dl_livepatch_activate(struct bnxt *bp, struct netlink_ext_ack *extack)
383 {
384 struct hwrm_fw_livepatch_query_output *query_resp;
385 struct hwrm_fw_livepatch_query_input *query_req;
386 struct hwrm_fw_livepatch_output *patch_resp;
387 struct hwrm_fw_livepatch_input *patch_req;
388 u16 flags, live_patch_state;
389 bool activated = false;
390 u32 installed = 0;
391 u8 target;
392 int rc;
393
394 if (~bp->fw_cap & BNXT_FW_CAP_LIVEPATCH) {
395 NL_SET_ERR_MSG_MOD(extack, "Device does not support live patch");
396 return -EOPNOTSUPP;
397 }
398
399 rc = hwrm_req_init(bp, query_req, HWRM_FW_LIVEPATCH_QUERY);
400 if (rc)
401 return rc;
402 query_resp = hwrm_req_hold(bp, query_req);
403
404 rc = hwrm_req_init(bp, patch_req, HWRM_FW_LIVEPATCH);
405 if (rc) {
406 hwrm_req_drop(bp, query_req);
407 return rc;
408 }
409 patch_req->loadtype = FW_LIVEPATCH_REQ_LOADTYPE_NVM_INSTALL;
410 patch_resp = hwrm_req_hold(bp, patch_req);
411
412 for (target = 1; target <= FW_LIVEPATCH_REQ_FW_TARGET_LAST; target++) {
413 query_req->fw_target = target;
414 rc = hwrm_req_send(bp, query_req);
415 if (rc) {
416 NL_SET_ERR_MSG_MOD(extack, "Failed to query packages");
417 break;
418 }
419
420 flags = le16_to_cpu(query_resp->status_flags);
421 live_patch_state = BNXT_LIVEPATCH_STATE(flags);
422
423 if (live_patch_state == BNXT_LIVEPATCH_NOT_INSTALLED)
424 continue;
425
426 if (live_patch_state == BNXT_LIVEPATCH_ACTIVATED) {
427 activated = true;
428 continue;
429 }
430
431 if (live_patch_state == BNXT_LIVEPATCH_INSTALLED)
432 patch_req->opcode = FW_LIVEPATCH_REQ_OPCODE_ACTIVATE;
433 else if (live_patch_state == BNXT_LIVEPATCH_REMOVED)
434 patch_req->opcode = FW_LIVEPATCH_REQ_OPCODE_DEACTIVATE;
435
436 patch_req->fw_target = target;
437 rc = hwrm_req_send(bp, patch_req);
438 if (rc) {
439 bnxt_dl_livepatch_report_err(bp, extack, patch_resp);
440 break;
441 }
442 installed++;
443 }
444
445 if (!rc && !installed) {
446 if (activated) {
447 NL_SET_ERR_MSG_MOD(extack, "Live patch already activated");
448 rc = -EEXIST;
449 } else {
450 NL_SET_ERR_MSG_MOD(extack, "No live patches found");
451 rc = -ENOENT;
452 }
453 }
454 hwrm_req_drop(bp, query_req);
455 hwrm_req_drop(bp, patch_req);
456 return rc;
457 }
458
bnxt_dl_reload_down(struct devlink * dl,bool netns_change,enum devlink_reload_action action,enum devlink_reload_limit limit,struct netlink_ext_ack * extack)459 static int bnxt_dl_reload_down(struct devlink *dl, bool netns_change,
460 enum devlink_reload_action action,
461 enum devlink_reload_limit limit,
462 struct netlink_ext_ack *extack)
463 {
464 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
465 int rc = 0;
466
467 switch (action) {
468 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: {
469 rtnl_lock();
470 if (bnxt_sriov_cfg(bp)) {
471 NL_SET_ERR_MSG_MOD(extack,
472 "reload is unsupported while VFs are allocated or being configured");
473 rtnl_unlock();
474 return -EOPNOTSUPP;
475 }
476 if (bp->dev->reg_state == NETREG_UNREGISTERED) {
477 rtnl_unlock();
478 return -ENODEV;
479 }
480 bnxt_ulp_stop(bp);
481 if (netif_running(bp->dev))
482 bnxt_close_nic(bp, true, true);
483 bnxt_vf_reps_free(bp);
484 rc = bnxt_hwrm_func_drv_unrgtr(bp);
485 if (rc) {
486 NL_SET_ERR_MSG_MOD(extack, "Failed to deregister");
487 if (netif_running(bp->dev))
488 dev_close(bp->dev);
489 rtnl_unlock();
490 break;
491 }
492 bnxt_cancel_reservations(bp, false);
493 bnxt_free_ctx_mem(bp);
494 kfree(bp->ctx);
495 bp->ctx = NULL;
496 break;
497 }
498 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: {
499 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET)
500 return bnxt_dl_livepatch_activate(bp, extack);
501 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET) {
502 NL_SET_ERR_MSG_MOD(extack, "Device not capable, requires reboot");
503 return -EOPNOTSUPP;
504 }
505 if (!bnxt_hwrm_reset_permitted(bp)) {
506 NL_SET_ERR_MSG_MOD(extack,
507 "Reset denied by firmware, it may be inhibited by remote driver");
508 return -EPERM;
509 }
510 rtnl_lock();
511 if (bp->dev->reg_state == NETREG_UNREGISTERED) {
512 rtnl_unlock();
513 return -ENODEV;
514 }
515 if (netif_running(bp->dev))
516 set_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
517 rc = bnxt_hwrm_firmware_reset(bp->dev,
518 FW_RESET_REQ_EMBEDDED_PROC_TYPE_CHIP,
519 FW_RESET_REQ_SELFRST_STATUS_SELFRSTASAP,
520 FW_RESET_REQ_FLAGS_RESET_GRACEFUL |
521 FW_RESET_REQ_FLAGS_FW_ACTIVATION);
522 if (rc) {
523 NL_SET_ERR_MSG_MOD(extack, "Failed to activate firmware");
524 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
525 rtnl_unlock();
526 }
527 break;
528 }
529 default:
530 rc = -EOPNOTSUPP;
531 }
532
533 return rc;
534 }
535
bnxt_dl_reload_up(struct devlink * dl,enum devlink_reload_action action,enum devlink_reload_limit limit,u32 * actions_performed,struct netlink_ext_ack * extack)536 static int bnxt_dl_reload_up(struct devlink *dl, enum devlink_reload_action action,
537 enum devlink_reload_limit limit, u32 *actions_performed,
538 struct netlink_ext_ack *extack)
539 {
540 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
541 int rc = 0;
542
543 *actions_performed = 0;
544 switch (action) {
545 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: {
546 bnxt_fw_init_one(bp);
547 bnxt_vf_reps_alloc(bp);
548 if (netif_running(bp->dev))
549 rc = bnxt_open_nic(bp, true, true);
550 bnxt_ulp_start(bp, rc);
551 if (!rc) {
552 bnxt_reenable_sriov(bp);
553 bnxt_ptp_reapply_pps(bp);
554 }
555 break;
556 }
557 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: {
558 unsigned long start = jiffies;
559 unsigned long timeout = start + BNXT_DFLT_FW_RST_MAX_DSECS * HZ / 10;
560
561 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET)
562 break;
563 if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)
564 timeout = start + bp->fw_health->normal_func_wait_dsecs * HZ / 10;
565 if (!netif_running(bp->dev))
566 NL_SET_ERR_MSG_MOD(extack,
567 "Device is closed, not waiting for reset notice that will never come");
568 rtnl_unlock();
569 while (test_bit(BNXT_STATE_FW_ACTIVATE, &bp->state)) {
570 if (time_after(jiffies, timeout)) {
571 NL_SET_ERR_MSG_MOD(extack, "Activation incomplete");
572 rc = -ETIMEDOUT;
573 break;
574 }
575 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) {
576 NL_SET_ERR_MSG_MOD(extack, "Activation aborted");
577 rc = -ENODEV;
578 break;
579 }
580 msleep(50);
581 }
582 rtnl_lock();
583 if (!rc)
584 *actions_performed |= BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT);
585 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
586 break;
587 }
588 default:
589 return -EOPNOTSUPP;
590 }
591
592 if (!rc) {
593 bnxt_print_device_info(bp);
594 if (netif_running(bp->dev)) {
595 mutex_lock(&bp->link_lock);
596 bnxt_report_link(bp);
597 mutex_unlock(&bp->link_lock);
598 }
599 *actions_performed |= BIT(action);
600 } else if (netif_running(bp->dev)) {
601 dev_close(bp->dev);
602 }
603 rtnl_unlock();
604 return rc;
605 }
606
bnxt_nvm_test(struct bnxt * bp,struct netlink_ext_ack * extack)607 static bool bnxt_nvm_test(struct bnxt *bp, struct netlink_ext_ack *extack)
608 {
609 bool rc = false;
610 u32 datalen;
611 u16 index;
612 u8 *buf;
613
614 if (bnxt_find_nvram_item(bp->dev, BNX_DIR_TYPE_VPD,
615 BNX_DIR_ORDINAL_FIRST, BNX_DIR_EXT_NONE,
616 &index, NULL, &datalen) || !datalen) {
617 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd entry error");
618 return false;
619 }
620
621 buf = kzalloc(datalen, GFP_KERNEL);
622 if (!buf) {
623 NL_SET_ERR_MSG_MOD(extack, "insufficient memory for nvm test");
624 return false;
625 }
626
627 if (bnxt_get_nvram_item(bp->dev, index, 0, datalen, buf)) {
628 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd read error");
629 goto done;
630 }
631
632 if (bnxt_flash_nvram(bp->dev, BNX_DIR_TYPE_VPD, BNX_DIR_ORDINAL_FIRST,
633 BNX_DIR_EXT_NONE, 0, 0, buf, datalen)) {
634 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd write error");
635 goto done;
636 }
637
638 rc = true;
639
640 done:
641 kfree(buf);
642 return rc;
643 }
644
bnxt_dl_selftest_check(struct devlink * dl,unsigned int id,struct netlink_ext_ack * extack)645 static bool bnxt_dl_selftest_check(struct devlink *dl, unsigned int id,
646 struct netlink_ext_ack *extack)
647 {
648 return id == DEVLINK_ATTR_SELFTEST_ID_FLASH;
649 }
650
bnxt_dl_selftest_run(struct devlink * dl,unsigned int id,struct netlink_ext_ack * extack)651 static enum devlink_selftest_status bnxt_dl_selftest_run(struct devlink *dl,
652 unsigned int id,
653 struct netlink_ext_ack *extack)
654 {
655 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
656
657 if (id == DEVLINK_ATTR_SELFTEST_ID_FLASH)
658 return bnxt_nvm_test(bp, extack) ?
659 DEVLINK_SELFTEST_STATUS_PASS :
660 DEVLINK_SELFTEST_STATUS_FAIL;
661
662 return DEVLINK_SELFTEST_STATUS_SKIP;
663 }
664
665 static const struct devlink_ops bnxt_dl_ops = {
666 #ifdef CONFIG_BNXT_SRIOV
667 .eswitch_mode_set = bnxt_dl_eswitch_mode_set,
668 .eswitch_mode_get = bnxt_dl_eswitch_mode_get,
669 #endif /* CONFIG_BNXT_SRIOV */
670 .info_get = bnxt_dl_info_get,
671 .flash_update = bnxt_dl_flash_update,
672 .reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT) |
673 BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE),
674 .reload_limits = BIT(DEVLINK_RELOAD_LIMIT_NO_RESET),
675 .reload_down = bnxt_dl_reload_down,
676 .reload_up = bnxt_dl_reload_up,
677 .selftest_check = bnxt_dl_selftest_check,
678 .selftest_run = bnxt_dl_selftest_run,
679 };
680
681 static const struct devlink_ops bnxt_vf_dl_ops;
682
683 enum bnxt_dl_param_id {
684 BNXT_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
685 BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
686 };
687
688 static const struct bnxt_dl_nvm_param nvm_params[] = {
689 {DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, NVM_OFF_ENABLE_SRIOV,
690 BNXT_NVM_SHARED_CFG, 1, 1},
691 {DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, NVM_OFF_IGNORE_ARI,
692 BNXT_NVM_SHARED_CFG, 1, 1},
693 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
694 NVM_OFF_MSIX_VEC_PER_PF_MAX, BNXT_NVM_SHARED_CFG, 10, 4},
695 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
696 NVM_OFF_MSIX_VEC_PER_PF_MIN, BNXT_NVM_SHARED_CFG, 7, 4},
697 {BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, NVM_OFF_DIS_GRE_VER_CHECK,
698 BNXT_NVM_SHARED_CFG, 1, 1},
699 };
700
701 union bnxt_nvm_data {
702 u8 val8;
703 __le32 val32;
704 };
705
bnxt_copy_to_nvm_data(union bnxt_nvm_data * dst,union devlink_param_value * src,int nvm_num_bits,int dl_num_bytes)706 static void bnxt_copy_to_nvm_data(union bnxt_nvm_data *dst,
707 union devlink_param_value *src,
708 int nvm_num_bits, int dl_num_bytes)
709 {
710 u32 val32 = 0;
711
712 if (nvm_num_bits == 1) {
713 dst->val8 = src->vbool;
714 return;
715 }
716 if (dl_num_bytes == 4)
717 val32 = src->vu32;
718 else if (dl_num_bytes == 2)
719 val32 = (u32)src->vu16;
720 else if (dl_num_bytes == 1)
721 val32 = (u32)src->vu8;
722 dst->val32 = cpu_to_le32(val32);
723 }
724
bnxt_copy_from_nvm_data(union devlink_param_value * dst,union bnxt_nvm_data * src,int nvm_num_bits,int dl_num_bytes)725 static void bnxt_copy_from_nvm_data(union devlink_param_value *dst,
726 union bnxt_nvm_data *src,
727 int nvm_num_bits, int dl_num_bytes)
728 {
729 u32 val32;
730
731 if (nvm_num_bits == 1) {
732 dst->vbool = src->val8;
733 return;
734 }
735 val32 = le32_to_cpu(src->val32);
736 if (dl_num_bytes == 4)
737 dst->vu32 = val32;
738 else if (dl_num_bytes == 2)
739 dst->vu16 = (u16)val32;
740 else if (dl_num_bytes == 1)
741 dst->vu8 = (u8)val32;
742 }
743
bnxt_hwrm_get_nvm_cfg_ver(struct bnxt * bp,u32 * nvm_cfg_ver)744 static int bnxt_hwrm_get_nvm_cfg_ver(struct bnxt *bp, u32 *nvm_cfg_ver)
745 {
746 struct hwrm_nvm_get_variable_input *req;
747 u16 bytes = BNXT_NVM_CFG_VER_BYTES;
748 u16 bits = BNXT_NVM_CFG_VER_BITS;
749 union devlink_param_value ver;
750 union bnxt_nvm_data *data;
751 dma_addr_t data_dma_addr;
752 int rc, i = 2;
753 u16 dim = 1;
754
755 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE);
756 if (rc)
757 return rc;
758
759 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr);
760 if (!data) {
761 rc = -ENOMEM;
762 goto exit;
763 }
764
765 /* earlier devices present as an array of raw bytes */
766 if (!BNXT_CHIP_P5(bp)) {
767 dim = 0;
768 i = 0;
769 bits *= 3; /* array of 3 version components */
770 bytes *= 4; /* copy whole word */
771 }
772
773 hwrm_req_hold(bp, req);
774 req->dest_data_addr = cpu_to_le64(data_dma_addr);
775 req->data_len = cpu_to_le16(bits);
776 req->option_num = cpu_to_le16(NVM_OFF_NVM_CFG_VER);
777 req->dimensions = cpu_to_le16(dim);
778
779 while (i >= 0) {
780 req->index_0 = cpu_to_le16(i--);
781 rc = hwrm_req_send_silent(bp, req);
782 if (rc)
783 goto exit;
784 bnxt_copy_from_nvm_data(&ver, data, bits, bytes);
785
786 if (BNXT_CHIP_P5(bp)) {
787 *nvm_cfg_ver <<= 8;
788 *nvm_cfg_ver |= ver.vu8;
789 } else {
790 *nvm_cfg_ver = ver.vu32;
791 }
792 }
793
794 exit:
795 hwrm_req_drop(bp, req);
796 return rc;
797 }
798
bnxt_dl_info_put(struct bnxt * bp,struct devlink_info_req * req,enum bnxt_dl_version_type type,const char * key,char * buf)799 static int bnxt_dl_info_put(struct bnxt *bp, struct devlink_info_req *req,
800 enum bnxt_dl_version_type type, const char *key,
801 char *buf)
802 {
803 if (!strlen(buf))
804 return 0;
805
806 if ((bp->flags & BNXT_FLAG_CHIP_P5) &&
807 (!strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_NCSI) ||
808 !strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_ROCE)))
809 return 0;
810
811 switch (type) {
812 case BNXT_VERSION_FIXED:
813 return devlink_info_version_fixed_put(req, key, buf);
814 case BNXT_VERSION_RUNNING:
815 return devlink_info_version_running_put(req, key, buf);
816 case BNXT_VERSION_STORED:
817 return devlink_info_version_stored_put(req, key, buf);
818 }
819 return 0;
820 }
821
822 #define BNXT_FW_SRT_PATCH "fw.srt.patch"
823 #define BNXT_FW_CRT_PATCH "fw.crt.patch"
824
bnxt_dl_livepatch_info_put(struct bnxt * bp,struct devlink_info_req * req,const char * key)825 static int bnxt_dl_livepatch_info_put(struct bnxt *bp,
826 struct devlink_info_req *req,
827 const char *key)
828 {
829 struct hwrm_fw_livepatch_query_input *query;
830 struct hwrm_fw_livepatch_query_output *resp;
831 u16 flags;
832 int rc;
833
834 if (~bp->fw_cap & BNXT_FW_CAP_LIVEPATCH)
835 return 0;
836
837 rc = hwrm_req_init(bp, query, HWRM_FW_LIVEPATCH_QUERY);
838 if (rc)
839 return rc;
840
841 if (!strcmp(key, BNXT_FW_SRT_PATCH))
842 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_SECURE_FW;
843 else if (!strcmp(key, BNXT_FW_CRT_PATCH))
844 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_COMMON_FW;
845 else
846 goto exit;
847
848 resp = hwrm_req_hold(bp, query);
849 rc = hwrm_req_send(bp, query);
850 if (rc)
851 goto exit;
852
853 flags = le16_to_cpu(resp->status_flags);
854 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE) {
855 resp->active_ver[sizeof(resp->active_ver) - 1] = '\0';
856 rc = devlink_info_version_running_put(req, key, resp->active_ver);
857 if (rc)
858 goto exit;
859 }
860
861 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL) {
862 resp->install_ver[sizeof(resp->install_ver) - 1] = '\0';
863 rc = devlink_info_version_stored_put(req, key, resp->install_ver);
864 if (rc)
865 goto exit;
866 }
867
868 exit:
869 hwrm_req_drop(bp, query);
870 return rc;
871 }
872
873 #define HWRM_FW_VER_STR_LEN 16
874
bnxt_dl_info_get(struct devlink * dl,struct devlink_info_req * req,struct netlink_ext_ack * extack)875 static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
876 struct netlink_ext_ack *extack)
877 {
878 struct hwrm_nvm_get_dev_info_output nvm_dev_info;
879 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
880 struct hwrm_ver_get_output *ver_resp;
881 char mgmt_ver[FW_VER_STR_LEN];
882 char roce_ver[FW_VER_STR_LEN];
883 char ncsi_ver[FW_VER_STR_LEN];
884 char buf[32];
885 u32 ver = 0;
886 int rc;
887
888 if (BNXT_PF(bp) && (bp->flags & BNXT_FLAG_DSN_VALID)) {
889 sprintf(buf, "%02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X",
890 bp->dsn[7], bp->dsn[6], bp->dsn[5], bp->dsn[4],
891 bp->dsn[3], bp->dsn[2], bp->dsn[1], bp->dsn[0]);
892 rc = devlink_info_serial_number_put(req, buf);
893 if (rc)
894 return rc;
895 }
896
897 if (strlen(bp->board_serialno)) {
898 rc = devlink_info_board_serial_number_put(req, bp->board_serialno);
899 if (rc)
900 return rc;
901 }
902
903 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
904 DEVLINK_INFO_VERSION_GENERIC_BOARD_ID,
905 bp->board_partno);
906 if (rc)
907 return rc;
908
909 sprintf(buf, "%X", bp->chip_num);
910 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
911 DEVLINK_INFO_VERSION_GENERIC_ASIC_ID, buf);
912 if (rc)
913 return rc;
914
915 ver_resp = &bp->ver_resp;
916 sprintf(buf, "%c%d", 'A' + ver_resp->chip_rev, ver_resp->chip_metal);
917 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
918 DEVLINK_INFO_VERSION_GENERIC_ASIC_REV, buf);
919 if (rc)
920 return rc;
921
922 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
923 DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
924 bp->nvm_cfg_ver);
925 if (rc)
926 return rc;
927
928 buf[0] = 0;
929 strncat(buf, ver_resp->active_pkg_name, HWRM_FW_VER_STR_LEN);
930 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
931 DEVLINK_INFO_VERSION_GENERIC_FW, buf);
932 if (rc)
933 return rc;
934
935 if (BNXT_PF(bp) && !bnxt_hwrm_get_nvm_cfg_ver(bp, &ver)) {
936 sprintf(buf, "%d.%d.%d", (ver >> 16) & 0xff, (ver >> 8) & 0xff,
937 ver & 0xff);
938 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
939 DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
940 buf);
941 if (rc)
942 return rc;
943 }
944
945 if (ver_resp->flags & VER_GET_RESP_FLAGS_EXT_VER_AVAIL) {
946 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
947 ver_resp->hwrm_fw_major, ver_resp->hwrm_fw_minor,
948 ver_resp->hwrm_fw_build, ver_resp->hwrm_fw_patch);
949
950 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
951 ver_resp->mgmt_fw_major, ver_resp->mgmt_fw_minor,
952 ver_resp->mgmt_fw_build, ver_resp->mgmt_fw_patch);
953
954 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
955 ver_resp->roce_fw_major, ver_resp->roce_fw_minor,
956 ver_resp->roce_fw_build, ver_resp->roce_fw_patch);
957 } else {
958 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
959 ver_resp->hwrm_fw_maj_8b, ver_resp->hwrm_fw_min_8b,
960 ver_resp->hwrm_fw_bld_8b, ver_resp->hwrm_fw_rsvd_8b);
961
962 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
963 ver_resp->mgmt_fw_maj_8b, ver_resp->mgmt_fw_min_8b,
964 ver_resp->mgmt_fw_bld_8b, ver_resp->mgmt_fw_rsvd_8b);
965
966 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
967 ver_resp->roce_fw_maj_8b, ver_resp->roce_fw_min_8b,
968 ver_resp->roce_fw_bld_8b, ver_resp->roce_fw_rsvd_8b);
969 }
970 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
971 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
972 if (rc)
973 return rc;
974
975 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
976 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API,
977 bp->hwrm_ver_supp);
978 if (rc)
979 return rc;
980
981 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
982 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
983 if (rc)
984 return rc;
985
986 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
987 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
988 if (rc)
989 return rc;
990
991 rc = bnxt_hwrm_nvm_get_dev_info(bp, &nvm_dev_info);
992 if (rc ||
993 !(nvm_dev_info.flags & NVM_GET_DEV_INFO_RESP_FLAGS_FW_VER_VALID)) {
994 if (!bnxt_get_pkginfo(bp->dev, buf, sizeof(buf)))
995 return bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
996 DEVLINK_INFO_VERSION_GENERIC_FW,
997 buf);
998 return 0;
999 }
1000
1001 buf[0] = 0;
1002 strncat(buf, nvm_dev_info.pkg_name, HWRM_FW_VER_STR_LEN);
1003 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
1004 DEVLINK_INFO_VERSION_GENERIC_FW, buf);
1005 if (rc)
1006 return rc;
1007
1008 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
1009 nvm_dev_info.hwrm_fw_major, nvm_dev_info.hwrm_fw_minor,
1010 nvm_dev_info.hwrm_fw_build, nvm_dev_info.hwrm_fw_patch);
1011 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
1012 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
1013 if (rc)
1014 return rc;
1015
1016 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
1017 nvm_dev_info.mgmt_fw_major, nvm_dev_info.mgmt_fw_minor,
1018 nvm_dev_info.mgmt_fw_build, nvm_dev_info.mgmt_fw_patch);
1019 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
1020 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
1021 if (rc)
1022 return rc;
1023
1024 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
1025 nvm_dev_info.roce_fw_major, nvm_dev_info.roce_fw_minor,
1026 nvm_dev_info.roce_fw_build, nvm_dev_info.roce_fw_patch);
1027 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
1028 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
1029 if (rc)
1030 return rc;
1031
1032 if (BNXT_CHIP_P5(bp)) {
1033 rc = bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_SRT_PATCH);
1034 if (rc)
1035 return rc;
1036 }
1037 return bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_CRT_PATCH);
1038
1039 }
1040
bnxt_hwrm_nvm_req(struct bnxt * bp,u32 param_id,void * msg,union devlink_param_value * val)1041 static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg,
1042 union devlink_param_value *val)
1043 {
1044 struct hwrm_nvm_get_variable_input *req = msg;
1045 struct bnxt_dl_nvm_param nvm_param;
1046 struct hwrm_err_output *resp;
1047 union bnxt_nvm_data *data;
1048 dma_addr_t data_dma_addr;
1049 int idx = 0, rc, i;
1050
1051 /* Get/Set NVM CFG parameter is supported only on PFs */
1052 if (BNXT_VF(bp)) {
1053 hwrm_req_drop(bp, req);
1054 return -EPERM;
1055 }
1056
1057 for (i = 0; i < ARRAY_SIZE(nvm_params); i++) {
1058 if (nvm_params[i].id == param_id) {
1059 nvm_param = nvm_params[i];
1060 break;
1061 }
1062 }
1063
1064 if (i == ARRAY_SIZE(nvm_params)) {
1065 hwrm_req_drop(bp, req);
1066 return -EOPNOTSUPP;
1067 }
1068
1069 if (nvm_param.dir_type == BNXT_NVM_PORT_CFG)
1070 idx = bp->pf.port_id;
1071 else if (nvm_param.dir_type == BNXT_NVM_FUNC_CFG)
1072 idx = bp->pf.fw_fid - BNXT_FIRST_PF_FID;
1073
1074 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr);
1075
1076 if (!data) {
1077 hwrm_req_drop(bp, req);
1078 return -ENOMEM;
1079 }
1080
1081 req->dest_data_addr = cpu_to_le64(data_dma_addr);
1082 req->data_len = cpu_to_le16(nvm_param.nvm_num_bits);
1083 req->option_num = cpu_to_le16(nvm_param.offset);
1084 req->index_0 = cpu_to_le16(idx);
1085 if (idx)
1086 req->dimensions = cpu_to_le16(1);
1087
1088 resp = hwrm_req_hold(bp, req);
1089 if (req->req_type == cpu_to_le16(HWRM_NVM_SET_VARIABLE)) {
1090 bnxt_copy_to_nvm_data(data, val, nvm_param.nvm_num_bits,
1091 nvm_param.dl_num_bytes);
1092 rc = hwrm_req_send(bp, msg);
1093 } else {
1094 rc = hwrm_req_send_silent(bp, msg);
1095 if (!rc) {
1096 bnxt_copy_from_nvm_data(val, data,
1097 nvm_param.nvm_num_bits,
1098 nvm_param.dl_num_bytes);
1099 } else {
1100 if (resp->cmd_err ==
1101 NVM_GET_VARIABLE_CMD_ERR_CODE_VAR_NOT_EXIST)
1102 rc = -EOPNOTSUPP;
1103 }
1104 }
1105 hwrm_req_drop(bp, req);
1106 if (rc == -EACCES)
1107 netdev_err(bp->dev, "PF does not have admin privileges to modify NVM config\n");
1108 return rc;
1109 }
1110
bnxt_dl_nvm_param_get(struct devlink * dl,u32 id,struct devlink_param_gset_ctx * ctx)1111 static int bnxt_dl_nvm_param_get(struct devlink *dl, u32 id,
1112 struct devlink_param_gset_ctx *ctx)
1113 {
1114 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1115 struct hwrm_nvm_get_variable_input *req;
1116 int rc;
1117
1118 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE);
1119 if (rc)
1120 return rc;
1121
1122 rc = bnxt_hwrm_nvm_req(bp, id, req, &ctx->val);
1123 if (!rc && id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
1124 ctx->val.vbool = !ctx->val.vbool;
1125
1126 return rc;
1127 }
1128
bnxt_dl_nvm_param_set(struct devlink * dl,u32 id,struct devlink_param_gset_ctx * ctx)1129 static int bnxt_dl_nvm_param_set(struct devlink *dl, u32 id,
1130 struct devlink_param_gset_ctx *ctx)
1131 {
1132 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1133 struct hwrm_nvm_set_variable_input *req;
1134 int rc;
1135
1136 rc = hwrm_req_init(bp, req, HWRM_NVM_SET_VARIABLE);
1137 if (rc)
1138 return rc;
1139
1140 if (id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
1141 ctx->val.vbool = !ctx->val.vbool;
1142
1143 return bnxt_hwrm_nvm_req(bp, id, req, &ctx->val);
1144 }
1145
bnxt_dl_msix_validate(struct devlink * dl,u32 id,union devlink_param_value val,struct netlink_ext_ack * extack)1146 static int bnxt_dl_msix_validate(struct devlink *dl, u32 id,
1147 union devlink_param_value val,
1148 struct netlink_ext_ack *extack)
1149 {
1150 int max_val = -1;
1151
1152 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX)
1153 max_val = BNXT_MSIX_VEC_MAX;
1154
1155 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN)
1156 max_val = BNXT_MSIX_VEC_MIN_MAX;
1157
1158 if (val.vu32 > max_val) {
1159 NL_SET_ERR_MSG_MOD(extack, "MSIX value is exceeding the range");
1160 return -EINVAL;
1161 }
1162
1163 return 0;
1164 }
1165
bnxt_remote_dev_reset_get(struct devlink * dl,u32 id,struct devlink_param_gset_ctx * ctx)1166 static int bnxt_remote_dev_reset_get(struct devlink *dl, u32 id,
1167 struct devlink_param_gset_ctx *ctx)
1168 {
1169 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1170
1171 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
1172 return -EOPNOTSUPP;
1173
1174 ctx->val.vbool = bnxt_dl_get_remote_reset(dl);
1175 return 0;
1176 }
1177
bnxt_remote_dev_reset_set(struct devlink * dl,u32 id,struct devlink_param_gset_ctx * ctx)1178 static int bnxt_remote_dev_reset_set(struct devlink *dl, u32 id,
1179 struct devlink_param_gset_ctx *ctx)
1180 {
1181 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1182 int rc;
1183
1184 rc = bnxt_hwrm_remote_dev_reset_set(bp, ctx->val.vbool);
1185 if (rc)
1186 return rc;
1187
1188 bnxt_dl_set_remote_reset(dl, ctx->val.vbool);
1189 return rc;
1190 }
1191
1192 static const struct devlink_param bnxt_dl_params[] = {
1193 DEVLINK_PARAM_GENERIC(ENABLE_SRIOV,
1194 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1195 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1196 NULL),
1197 DEVLINK_PARAM_GENERIC(IGNORE_ARI,
1198 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1199 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1200 NULL),
1201 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MAX,
1202 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1203 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1204 bnxt_dl_msix_validate),
1205 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MIN,
1206 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1207 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1208 bnxt_dl_msix_validate),
1209 DEVLINK_PARAM_DRIVER(BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
1210 "gre_ver_check", DEVLINK_PARAM_TYPE_BOOL,
1211 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1212 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1213 NULL),
1214 /* keep REMOTE_DEV_RESET last, it is excluded based on caps */
1215 DEVLINK_PARAM_GENERIC(ENABLE_REMOTE_DEV_RESET,
1216 BIT(DEVLINK_PARAM_CMODE_RUNTIME),
1217 bnxt_remote_dev_reset_get,
1218 bnxt_remote_dev_reset_set, NULL),
1219 };
1220
bnxt_dl_params_register(struct bnxt * bp)1221 static int bnxt_dl_params_register(struct bnxt *bp)
1222 {
1223 int num_params = ARRAY_SIZE(bnxt_dl_params);
1224 int rc;
1225
1226 if (bp->hwrm_spec_code < 0x10600)
1227 return 0;
1228
1229 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
1230 num_params--;
1231
1232 rc = devlink_params_register(bp->dl, bnxt_dl_params, num_params);
1233 if (rc)
1234 netdev_warn(bp->dev, "devlink_params_register failed. rc=%d\n",
1235 rc);
1236 return rc;
1237 }
1238
bnxt_dl_params_unregister(struct bnxt * bp)1239 static void bnxt_dl_params_unregister(struct bnxt *bp)
1240 {
1241 int num_params = ARRAY_SIZE(bnxt_dl_params);
1242
1243 if (bp->hwrm_spec_code < 0x10600)
1244 return;
1245
1246 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
1247 num_params--;
1248
1249 devlink_params_unregister(bp->dl, bnxt_dl_params, num_params);
1250 }
1251
bnxt_dl_register(struct bnxt * bp)1252 int bnxt_dl_register(struct bnxt *bp)
1253 {
1254 const struct devlink_ops *devlink_ops;
1255 struct devlink_port_attrs attrs = {};
1256 struct bnxt_dl *bp_dl;
1257 struct devlink *dl;
1258 int rc;
1259
1260 if (BNXT_PF(bp))
1261 devlink_ops = &bnxt_dl_ops;
1262 else
1263 devlink_ops = &bnxt_vf_dl_ops;
1264
1265 dl = devlink_alloc(devlink_ops, sizeof(struct bnxt_dl), &bp->pdev->dev);
1266 if (!dl) {
1267 netdev_warn(bp->dev, "devlink_alloc failed\n");
1268 return -ENOMEM;
1269 }
1270
1271 bp->dl = dl;
1272 bp_dl = devlink_priv(dl);
1273 bp_dl->bp = bp;
1274 bnxt_dl_set_remote_reset(dl, true);
1275
1276 /* Add switchdev eswitch mode setting, if SRIOV supported */
1277 if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV) &&
1278 bp->hwrm_spec_code > 0x10803)
1279 bp->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY;
1280
1281 if (!BNXT_PF(bp))
1282 goto out;
1283
1284 attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
1285 attrs.phys.port_number = bp->pf.port_id;
1286 memcpy(attrs.switch_id.id, bp->dsn, sizeof(bp->dsn));
1287 attrs.switch_id.id_len = sizeof(bp->dsn);
1288 devlink_port_attrs_set(&bp->dl_port, &attrs);
1289 rc = devlink_port_register(dl, &bp->dl_port, bp->pf.port_id);
1290 if (rc) {
1291 netdev_err(bp->dev, "devlink_port_register failed\n");
1292 goto err_dl_free;
1293 }
1294
1295 rc = bnxt_dl_params_register(bp);
1296 if (rc)
1297 goto err_dl_port_unreg;
1298
1299 out:
1300 devlink_register(dl);
1301 return 0;
1302
1303 err_dl_port_unreg:
1304 devlink_port_unregister(&bp->dl_port);
1305 err_dl_free:
1306 devlink_free(dl);
1307 return rc;
1308 }
1309
bnxt_dl_unregister(struct bnxt * bp)1310 void bnxt_dl_unregister(struct bnxt *bp)
1311 {
1312 struct devlink *dl = bp->dl;
1313
1314 devlink_unregister(dl);
1315 if (BNXT_PF(bp)) {
1316 bnxt_dl_params_unregister(bp);
1317 devlink_port_unregister(&bp->dl_port);
1318 }
1319 devlink_free(dl);
1320 }
1321