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 = bnxt_hwrm_func_cfg_short_req_init(bp, &req);
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
108 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) {
109 devlink_fmsg_string_pair_put(fmsg, "Status", "recovering");
110 return 0;
111 }
112
113 if (!h->status_reliable) {
114 devlink_fmsg_string_pair_put(fmsg, "Status", "unknown");
115 return 0;
116 }
117
118 mutex_lock(&h->lock);
119 fw_status = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG);
120 if (BNXT_FW_IS_BOOTING(fw_status)) {
121 devlink_fmsg_string_pair_put(fmsg, "Status", "initializing");
122 } else if (h->severity || fw_status != BNXT_FW_STATUS_HEALTHY) {
123 if (!h->severity) {
124 h->severity = SEVERITY_FATAL;
125 h->remedy = REMEDY_POWER_CYCLE_DEVICE;
126 h->diagnoses++;
127 devlink_health_report(h->fw_reporter,
128 "FW error diagnosed", h);
129 }
130 devlink_fmsg_string_pair_put(fmsg, "Status", "error");
131 devlink_fmsg_u32_pair_put(fmsg, "Syndrome", fw_status);
132 } else {
133 devlink_fmsg_string_pair_put(fmsg, "Status", "healthy");
134 }
135
136 devlink_fmsg_string_pair_put(fmsg, "Severity",
137 bnxt_health_severity_str(h->severity));
138
139 if (h->severity) {
140 devlink_fmsg_string_pair_put(fmsg, "Remedy",
141 bnxt_health_remedy_str(h->remedy));
142 if (h->remedy == REMEDY_DEVLINK_RECOVER)
143 devlink_fmsg_string_pair_put(fmsg, "Impact",
144 "traffic+ntuple_cfg");
145 }
146
147 mutex_unlock(&h->lock);
148 if (!h->resets_reliable)
149 return 0;
150
151 fw_resets = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
152 devlink_fmsg_u32_pair_put(fmsg, "Resets", fw_resets);
153 devlink_fmsg_u32_pair_put(fmsg, "Arrests", h->arrests);
154 devlink_fmsg_u32_pair_put(fmsg, "Survivals", h->survivals);
155 devlink_fmsg_u32_pair_put(fmsg, "Discoveries", h->discoveries);
156 devlink_fmsg_u32_pair_put(fmsg, "Fatalities", h->fatalities);
157 devlink_fmsg_u32_pair_put(fmsg, "Diagnoses", h->diagnoses);
158 return 0;
159 }
160
bnxt_fw_dump(struct devlink_health_reporter * reporter,struct devlink_fmsg * fmsg,void * priv_ctx,struct netlink_ext_ack * extack)161 static int bnxt_fw_dump(struct devlink_health_reporter *reporter,
162 struct devlink_fmsg *fmsg, void *priv_ctx,
163 struct netlink_ext_ack *extack)
164 {
165 struct bnxt *bp = devlink_health_reporter_priv(reporter);
166 u32 dump_len;
167 void *data;
168 int rc;
169
170 /* TODO: no firmware dump support in devlink_health_report() context */
171 if (priv_ctx)
172 return -EOPNOTSUPP;
173
174 dump_len = bnxt_get_coredump_length(bp, BNXT_DUMP_LIVE);
175 if (!dump_len)
176 return -EIO;
177
178 data = vmalloc(dump_len);
179 if (!data)
180 return -ENOMEM;
181
182 rc = bnxt_get_coredump(bp, BNXT_DUMP_LIVE, data, &dump_len);
183 if (!rc) {
184 devlink_fmsg_pair_nest_start(fmsg, "core");
185 devlink_fmsg_binary_pair_put(fmsg, "data", data, dump_len);
186 devlink_fmsg_u32_pair_put(fmsg, "size", dump_len);
187 devlink_fmsg_pair_nest_end(fmsg);
188 }
189
190 vfree(data);
191 return rc;
192 }
193
bnxt_fw_recover(struct devlink_health_reporter * reporter,void * priv_ctx,struct netlink_ext_ack * extack)194 static int bnxt_fw_recover(struct devlink_health_reporter *reporter,
195 void *priv_ctx,
196 struct netlink_ext_ack *extack)
197 {
198 struct bnxt *bp = devlink_health_reporter_priv(reporter);
199
200 if (bp->fw_health->severity == SEVERITY_FATAL)
201 return -ENODEV;
202
203 set_bit(BNXT_STATE_RECOVER, &bp->state);
204 __bnxt_fw_recover(bp);
205
206 return -EINPROGRESS;
207 }
208
209 static const struct devlink_health_reporter_ops bnxt_dl_fw_reporter_ops = {
210 .name = "fw",
211 .diagnose = bnxt_fw_diagnose,
212 .dump = bnxt_fw_dump,
213 .recover = bnxt_fw_recover,
214 };
215
216 static struct devlink_health_reporter *
__bnxt_dl_reporter_create(struct bnxt * bp,const struct devlink_health_reporter_ops * ops)217 __bnxt_dl_reporter_create(struct bnxt *bp,
218 const struct devlink_health_reporter_ops *ops)
219 {
220 struct devlink_health_reporter *reporter;
221
222 reporter = devlink_health_reporter_create(bp->dl, ops, 0, bp);
223 if (IS_ERR(reporter)) {
224 netdev_warn(bp->dev, "Failed to create %s health reporter, rc = %ld\n",
225 ops->name, PTR_ERR(reporter));
226 return NULL;
227 }
228
229 return reporter;
230 }
231
bnxt_dl_fw_reporters_create(struct bnxt * bp)232 void bnxt_dl_fw_reporters_create(struct bnxt *bp)
233 {
234 struct bnxt_fw_health *fw_health = bp->fw_health;
235
236 if (fw_health && !fw_health->fw_reporter)
237 fw_health->fw_reporter = __bnxt_dl_reporter_create(bp, &bnxt_dl_fw_reporter_ops);
238 }
239
bnxt_dl_fw_reporters_destroy(struct bnxt * bp)240 void bnxt_dl_fw_reporters_destroy(struct bnxt *bp)
241 {
242 struct bnxt_fw_health *fw_health = bp->fw_health;
243
244 if (fw_health && fw_health->fw_reporter) {
245 devlink_health_reporter_destroy(fw_health->fw_reporter);
246 fw_health->fw_reporter = NULL;
247 }
248 }
249
bnxt_devlink_health_fw_report(struct bnxt * bp)250 void bnxt_devlink_health_fw_report(struct bnxt *bp)
251 {
252 struct bnxt_fw_health *fw_health = bp->fw_health;
253 int rc;
254
255 if (!fw_health)
256 return;
257
258 if (!fw_health->fw_reporter) {
259 __bnxt_fw_recover(bp);
260 return;
261 }
262
263 mutex_lock(&fw_health->lock);
264 fw_health->severity = SEVERITY_RECOVERABLE;
265 fw_health->remedy = REMEDY_DEVLINK_RECOVER;
266 mutex_unlock(&fw_health->lock);
267 rc = devlink_health_report(fw_health->fw_reporter, "FW error reported",
268 fw_health);
269 if (rc == -ECANCELED)
270 __bnxt_fw_recover(bp);
271 }
272
bnxt_dl_health_fw_status_update(struct bnxt * bp,bool healthy)273 void bnxt_dl_health_fw_status_update(struct bnxt *bp, bool healthy)
274 {
275 struct bnxt_fw_health *fw_health = bp->fw_health;
276 u8 state;
277
278 mutex_lock(&fw_health->lock);
279 if (healthy) {
280 fw_health->severity = SEVERITY_NORMAL;
281 state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY;
282 } else {
283 fw_health->severity = SEVERITY_FATAL;
284 fw_health->remedy = REMEDY_POWER_CYCLE_DEVICE;
285 state = DEVLINK_HEALTH_REPORTER_STATE_ERROR;
286 }
287 mutex_unlock(&fw_health->lock);
288 devlink_health_reporter_state_update(fw_health->fw_reporter, state);
289 }
290
bnxt_dl_health_fw_recovery_done(struct bnxt * bp)291 void bnxt_dl_health_fw_recovery_done(struct bnxt *bp)
292 {
293 struct bnxt_dl *dl = devlink_priv(bp->dl);
294
295 devlink_health_reporter_recovery_done(bp->fw_health->fw_reporter);
296 bnxt_hwrm_remote_dev_reset_set(bp, dl->remote_reset);
297 }
298
299 static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
300 struct netlink_ext_ack *extack);
301
302 static void
bnxt_dl_livepatch_report_err(struct bnxt * bp,struct netlink_ext_ack * extack,struct hwrm_fw_livepatch_output * resp)303 bnxt_dl_livepatch_report_err(struct bnxt *bp, struct netlink_ext_ack *extack,
304 struct hwrm_fw_livepatch_output *resp)
305 {
306 int err = ((struct hwrm_err_output *)resp)->cmd_err;
307
308 switch (err) {
309 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_OPCODE:
310 netdev_err(bp->dev, "Illegal live patch opcode");
311 NL_SET_ERR_MSG_MOD(extack, "Invalid opcode");
312 break;
313 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_SUPPORTED:
314 NL_SET_ERR_MSG_MOD(extack, "Live patch operation not supported");
315 break;
316 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_INSTALLED:
317 NL_SET_ERR_MSG_MOD(extack, "Live patch not found");
318 break;
319 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_PATCHED:
320 NL_SET_ERR_MSG_MOD(extack,
321 "Live patch deactivation failed. Firmware not patched.");
322 break;
323 case FW_LIVEPATCH_CMD_ERR_CODE_AUTH_FAIL:
324 NL_SET_ERR_MSG_MOD(extack, "Live patch not authenticated");
325 break;
326 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_HEADER:
327 NL_SET_ERR_MSG_MOD(extack, "Incompatible live patch");
328 break;
329 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_SIZE:
330 NL_SET_ERR_MSG_MOD(extack, "Live patch has invalid size");
331 break;
332 case FW_LIVEPATCH_CMD_ERR_CODE_ALREADY_PATCHED:
333 NL_SET_ERR_MSG_MOD(extack, "Live patch already applied");
334 break;
335 default:
336 netdev_err(bp->dev, "Unexpected live patch error: %d\n", err);
337 NL_SET_ERR_MSG_MOD(extack, "Failed to activate live patch");
338 break;
339 }
340 }
341
342 /* Live patch status in NVM */
343 #define BNXT_LIVEPATCH_NOT_INSTALLED 0
344 #define BNXT_LIVEPATCH_INSTALLED FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL
345 #define BNXT_LIVEPATCH_REMOVED FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE
346 #define BNXT_LIVEPATCH_MASK (FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL | \
347 FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE)
348 #define BNXT_LIVEPATCH_ACTIVATED BNXT_LIVEPATCH_MASK
349
350 #define BNXT_LIVEPATCH_STATE(flags) ((flags) & BNXT_LIVEPATCH_MASK)
351
352 static int
bnxt_dl_livepatch_activate(struct bnxt * bp,struct netlink_ext_ack * extack)353 bnxt_dl_livepatch_activate(struct bnxt *bp, struct netlink_ext_ack *extack)
354 {
355 struct hwrm_fw_livepatch_query_output *query_resp;
356 struct hwrm_fw_livepatch_query_input *query_req;
357 struct hwrm_fw_livepatch_output *patch_resp;
358 struct hwrm_fw_livepatch_input *patch_req;
359 u16 flags, live_patch_state;
360 bool activated = false;
361 u32 installed = 0;
362 u8 target;
363 int rc;
364
365 if (~bp->fw_cap & BNXT_FW_CAP_LIVEPATCH) {
366 NL_SET_ERR_MSG_MOD(extack, "Device does not support live patch");
367 return -EOPNOTSUPP;
368 }
369
370 rc = hwrm_req_init(bp, query_req, HWRM_FW_LIVEPATCH_QUERY);
371 if (rc)
372 return rc;
373 query_resp = hwrm_req_hold(bp, query_req);
374
375 rc = hwrm_req_init(bp, patch_req, HWRM_FW_LIVEPATCH);
376 if (rc) {
377 hwrm_req_drop(bp, query_req);
378 return rc;
379 }
380 patch_req->loadtype = FW_LIVEPATCH_REQ_LOADTYPE_NVM_INSTALL;
381 patch_resp = hwrm_req_hold(bp, patch_req);
382
383 for (target = 1; target <= FW_LIVEPATCH_REQ_FW_TARGET_LAST; target++) {
384 query_req->fw_target = target;
385 rc = hwrm_req_send(bp, query_req);
386 if (rc) {
387 NL_SET_ERR_MSG_MOD(extack, "Failed to query packages");
388 break;
389 }
390
391 flags = le16_to_cpu(query_resp->status_flags);
392 live_patch_state = BNXT_LIVEPATCH_STATE(flags);
393
394 if (live_patch_state == BNXT_LIVEPATCH_NOT_INSTALLED)
395 continue;
396
397 if (live_patch_state == BNXT_LIVEPATCH_ACTIVATED) {
398 activated = true;
399 continue;
400 }
401
402 if (live_patch_state == BNXT_LIVEPATCH_INSTALLED)
403 patch_req->opcode = FW_LIVEPATCH_REQ_OPCODE_ACTIVATE;
404 else if (live_patch_state == BNXT_LIVEPATCH_REMOVED)
405 patch_req->opcode = FW_LIVEPATCH_REQ_OPCODE_DEACTIVATE;
406
407 patch_req->fw_target = target;
408 rc = hwrm_req_send(bp, patch_req);
409 if (rc) {
410 bnxt_dl_livepatch_report_err(bp, extack, patch_resp);
411 break;
412 }
413 installed++;
414 }
415
416 if (!rc && !installed) {
417 if (activated) {
418 NL_SET_ERR_MSG_MOD(extack, "Live patch already activated");
419 rc = -EEXIST;
420 } else {
421 NL_SET_ERR_MSG_MOD(extack, "No live patches found");
422 rc = -ENOENT;
423 }
424 }
425 hwrm_req_drop(bp, query_req);
426 hwrm_req_drop(bp, patch_req);
427 return rc;
428 }
429
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)430 static int bnxt_dl_reload_down(struct devlink *dl, bool netns_change,
431 enum devlink_reload_action action,
432 enum devlink_reload_limit limit,
433 struct netlink_ext_ack *extack)
434 {
435 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
436 int rc = 0;
437
438 switch (action) {
439 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: {
440 bnxt_ulp_stop(bp);
441 rtnl_lock();
442 if (bnxt_sriov_cfg(bp)) {
443 NL_SET_ERR_MSG_MOD(extack,
444 "reload is unsupported while VFs are allocated or being configured");
445 rtnl_unlock();
446 bnxt_ulp_start(bp, 0);
447 return -EOPNOTSUPP;
448 }
449 if (bp->dev->reg_state == NETREG_UNREGISTERED) {
450 rtnl_unlock();
451 bnxt_ulp_start(bp, 0);
452 return -ENODEV;
453 }
454 if (netif_running(bp->dev))
455 bnxt_close_nic(bp, true, true);
456 bnxt_vf_reps_free(bp);
457 rc = bnxt_hwrm_func_drv_unrgtr(bp);
458 if (rc) {
459 NL_SET_ERR_MSG_MOD(extack, "Failed to deregister");
460 if (netif_running(bp->dev))
461 dev_close(bp->dev);
462 rtnl_unlock();
463 break;
464 }
465 bnxt_cancel_reservations(bp, false);
466 bnxt_free_ctx_mem(bp);
467 break;
468 }
469 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: {
470 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET)
471 return bnxt_dl_livepatch_activate(bp, extack);
472 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET) {
473 NL_SET_ERR_MSG_MOD(extack, "Device not capable, requires reboot");
474 return -EOPNOTSUPP;
475 }
476 if (!bnxt_hwrm_reset_permitted(bp)) {
477 NL_SET_ERR_MSG_MOD(extack,
478 "Reset denied by firmware, it may be inhibited by remote driver");
479 return -EPERM;
480 }
481 rtnl_lock();
482 if (bp->dev->reg_state == NETREG_UNREGISTERED) {
483 rtnl_unlock();
484 return -ENODEV;
485 }
486 if (netif_running(bp->dev))
487 set_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
488 rc = bnxt_hwrm_firmware_reset(bp->dev,
489 FW_RESET_REQ_EMBEDDED_PROC_TYPE_CHIP,
490 FW_RESET_REQ_SELFRST_STATUS_SELFRSTASAP,
491 FW_RESET_REQ_FLAGS_RESET_GRACEFUL |
492 FW_RESET_REQ_FLAGS_FW_ACTIVATION);
493 if (rc) {
494 NL_SET_ERR_MSG_MOD(extack, "Failed to activate firmware");
495 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
496 rtnl_unlock();
497 }
498 break;
499 }
500 default:
501 rc = -EOPNOTSUPP;
502 }
503
504 return rc;
505 }
506
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)507 static int bnxt_dl_reload_up(struct devlink *dl, enum devlink_reload_action action,
508 enum devlink_reload_limit limit, u32 *actions_performed,
509 struct netlink_ext_ack *extack)
510 {
511 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
512 int rc = 0;
513
514 *actions_performed = 0;
515 switch (action) {
516 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: {
517 bnxt_fw_init_one(bp);
518 bnxt_vf_reps_alloc(bp);
519 if (netif_running(bp->dev))
520 rc = bnxt_open_nic(bp, true, true);
521 if (!rc) {
522 bnxt_reenable_sriov(bp);
523 bnxt_ptp_reapply_pps(bp);
524 }
525 break;
526 }
527 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: {
528 unsigned long start = jiffies;
529 unsigned long timeout = start + BNXT_DFLT_FW_RST_MAX_DSECS * HZ / 10;
530
531 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET)
532 break;
533 if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)
534 timeout = start + bp->fw_health->normal_func_wait_dsecs * HZ / 10;
535 if (!netif_running(bp->dev))
536 NL_SET_ERR_MSG_MOD(extack,
537 "Device is closed, not waiting for reset notice that will never come");
538 rtnl_unlock();
539 while (test_bit(BNXT_STATE_FW_ACTIVATE, &bp->state)) {
540 if (time_after(jiffies, timeout)) {
541 NL_SET_ERR_MSG_MOD(extack, "Activation incomplete");
542 rc = -ETIMEDOUT;
543 break;
544 }
545 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) {
546 NL_SET_ERR_MSG_MOD(extack, "Activation aborted");
547 rc = -ENODEV;
548 break;
549 }
550 msleep(50);
551 }
552 rtnl_lock();
553 if (!rc)
554 *actions_performed |= BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT);
555 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
556 break;
557 }
558 default:
559 return -EOPNOTSUPP;
560 }
561
562 if (!rc) {
563 bnxt_print_device_info(bp);
564 if (netif_running(bp->dev)) {
565 mutex_lock(&bp->link_lock);
566 bnxt_report_link(bp);
567 mutex_unlock(&bp->link_lock);
568 }
569 *actions_performed |= BIT(action);
570 } else if (netif_running(bp->dev)) {
571 dev_close(bp->dev);
572 }
573 rtnl_unlock();
574 if (action == DEVLINK_RELOAD_ACTION_DRIVER_REINIT)
575 bnxt_ulp_start(bp, rc);
576 return rc;
577 }
578
bnxt_nvm_test(struct bnxt * bp,struct netlink_ext_ack * extack)579 static bool bnxt_nvm_test(struct bnxt *bp, struct netlink_ext_ack *extack)
580 {
581 bool rc = false;
582 u32 datalen;
583 u16 index;
584 u8 *buf;
585
586 if (bnxt_find_nvram_item(bp->dev, BNX_DIR_TYPE_VPD,
587 BNX_DIR_ORDINAL_FIRST, BNX_DIR_EXT_NONE,
588 &index, NULL, &datalen) || !datalen) {
589 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd entry error");
590 return false;
591 }
592
593 buf = kzalloc(datalen, GFP_KERNEL);
594 if (!buf) {
595 NL_SET_ERR_MSG_MOD(extack, "insufficient memory for nvm test");
596 return false;
597 }
598
599 if (bnxt_get_nvram_item(bp->dev, index, 0, datalen, buf)) {
600 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd read error");
601 goto done;
602 }
603
604 if (bnxt_flash_nvram(bp->dev, BNX_DIR_TYPE_VPD, BNX_DIR_ORDINAL_FIRST,
605 BNX_DIR_EXT_NONE, 0, 0, buf, datalen)) {
606 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd write error");
607 goto done;
608 }
609
610 rc = true;
611
612 done:
613 kfree(buf);
614 return rc;
615 }
616
bnxt_dl_selftest_check(struct devlink * dl,unsigned int id,struct netlink_ext_ack * extack)617 static bool bnxt_dl_selftest_check(struct devlink *dl, unsigned int id,
618 struct netlink_ext_ack *extack)
619 {
620 return id == DEVLINK_ATTR_SELFTEST_ID_FLASH;
621 }
622
bnxt_dl_selftest_run(struct devlink * dl,unsigned int id,struct netlink_ext_ack * extack)623 static enum devlink_selftest_status bnxt_dl_selftest_run(struct devlink *dl,
624 unsigned int id,
625 struct netlink_ext_ack *extack)
626 {
627 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
628
629 if (id == DEVLINK_ATTR_SELFTEST_ID_FLASH)
630 return bnxt_nvm_test(bp, extack) ?
631 DEVLINK_SELFTEST_STATUS_PASS :
632 DEVLINK_SELFTEST_STATUS_FAIL;
633
634 return DEVLINK_SELFTEST_STATUS_SKIP;
635 }
636
637 static const struct devlink_ops bnxt_dl_ops = {
638 #ifdef CONFIG_BNXT_SRIOV
639 .eswitch_mode_set = bnxt_dl_eswitch_mode_set,
640 .eswitch_mode_get = bnxt_dl_eswitch_mode_get,
641 #endif /* CONFIG_BNXT_SRIOV */
642 .info_get = bnxt_dl_info_get,
643 .flash_update = bnxt_dl_flash_update,
644 .reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT) |
645 BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE),
646 .reload_limits = BIT(DEVLINK_RELOAD_LIMIT_NO_RESET),
647 .reload_down = bnxt_dl_reload_down,
648 .reload_up = bnxt_dl_reload_up,
649 .selftest_check = bnxt_dl_selftest_check,
650 .selftest_run = bnxt_dl_selftest_run,
651 };
652
653 static const struct devlink_ops bnxt_vf_dl_ops;
654
655 enum bnxt_dl_param_id {
656 BNXT_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
657 BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
658 };
659
660 static const struct bnxt_dl_nvm_param nvm_params[] = {
661 {DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, NVM_OFF_ENABLE_SRIOV,
662 BNXT_NVM_SHARED_CFG, 1, 1},
663 {DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, NVM_OFF_IGNORE_ARI,
664 BNXT_NVM_SHARED_CFG, 1, 1},
665 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
666 NVM_OFF_MSIX_VEC_PER_PF_MAX, BNXT_NVM_SHARED_CFG, 10, 4},
667 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
668 NVM_OFF_MSIX_VEC_PER_PF_MIN, BNXT_NVM_SHARED_CFG, 7, 4},
669 {BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, NVM_OFF_DIS_GRE_VER_CHECK,
670 BNXT_NVM_SHARED_CFG, 1, 1},
671 };
672
673 union bnxt_nvm_data {
674 u8 val8;
675 __le32 val32;
676 };
677
bnxt_copy_to_nvm_data(union bnxt_nvm_data * dst,union devlink_param_value * src,int nvm_num_bits,int dl_num_bytes)678 static void bnxt_copy_to_nvm_data(union bnxt_nvm_data *dst,
679 union devlink_param_value *src,
680 int nvm_num_bits, int dl_num_bytes)
681 {
682 u32 val32 = 0;
683
684 if (nvm_num_bits == 1) {
685 dst->val8 = src->vbool;
686 return;
687 }
688 if (dl_num_bytes == 4)
689 val32 = src->vu32;
690 else if (dl_num_bytes == 2)
691 val32 = (u32)src->vu16;
692 else if (dl_num_bytes == 1)
693 val32 = (u32)src->vu8;
694 dst->val32 = cpu_to_le32(val32);
695 }
696
bnxt_copy_from_nvm_data(union devlink_param_value * dst,union bnxt_nvm_data * src,int nvm_num_bits,int dl_num_bytes)697 static void bnxt_copy_from_nvm_data(union devlink_param_value *dst,
698 union bnxt_nvm_data *src,
699 int nvm_num_bits, int dl_num_bytes)
700 {
701 u32 val32;
702
703 if (nvm_num_bits == 1) {
704 dst->vbool = src->val8;
705 return;
706 }
707 val32 = le32_to_cpu(src->val32);
708 if (dl_num_bytes == 4)
709 dst->vu32 = val32;
710 else if (dl_num_bytes == 2)
711 dst->vu16 = (u16)val32;
712 else if (dl_num_bytes == 1)
713 dst->vu8 = (u8)val32;
714 }
715
bnxt_hwrm_get_nvm_cfg_ver(struct bnxt * bp,u32 * nvm_cfg_ver)716 static int bnxt_hwrm_get_nvm_cfg_ver(struct bnxt *bp, u32 *nvm_cfg_ver)
717 {
718 struct hwrm_nvm_get_variable_input *req;
719 u16 bytes = BNXT_NVM_CFG_VER_BYTES;
720 u16 bits = BNXT_NVM_CFG_VER_BITS;
721 union devlink_param_value ver;
722 union bnxt_nvm_data *data;
723 dma_addr_t data_dma_addr;
724 int rc, i = 2;
725 u16 dim = 1;
726
727 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE);
728 if (rc)
729 return rc;
730
731 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr);
732 if (!data) {
733 rc = -ENOMEM;
734 goto exit;
735 }
736
737 /* earlier devices present as an array of raw bytes */
738 if (!BNXT_CHIP_P5_PLUS(bp)) {
739 dim = 0;
740 i = 0;
741 bits *= 3; /* array of 3 version components */
742 bytes *= 4; /* copy whole word */
743 }
744
745 hwrm_req_hold(bp, req);
746 req->dest_data_addr = cpu_to_le64(data_dma_addr);
747 req->data_len = cpu_to_le16(bits);
748 req->option_num = cpu_to_le16(NVM_OFF_NVM_CFG_VER);
749 req->dimensions = cpu_to_le16(dim);
750
751 while (i >= 0) {
752 req->index_0 = cpu_to_le16(i--);
753 rc = hwrm_req_send_silent(bp, req);
754 if (rc)
755 goto exit;
756 bnxt_copy_from_nvm_data(&ver, data, bits, bytes);
757
758 if (BNXT_CHIP_P5_PLUS(bp)) {
759 *nvm_cfg_ver <<= 8;
760 *nvm_cfg_ver |= ver.vu8;
761 } else {
762 *nvm_cfg_ver = ver.vu32;
763 }
764 }
765
766 exit:
767 hwrm_req_drop(bp, req);
768 return rc;
769 }
770
bnxt_dl_info_put(struct bnxt * bp,struct devlink_info_req * req,enum bnxt_dl_version_type type,const char * key,char * buf)771 static int bnxt_dl_info_put(struct bnxt *bp, struct devlink_info_req *req,
772 enum bnxt_dl_version_type type, const char *key,
773 char *buf)
774 {
775 if (!strlen(buf))
776 return 0;
777
778 if ((bp->flags & BNXT_FLAG_CHIP_P5_PLUS) &&
779 (!strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_NCSI) ||
780 !strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_ROCE)))
781 return 0;
782
783 switch (type) {
784 case BNXT_VERSION_FIXED:
785 return devlink_info_version_fixed_put(req, key, buf);
786 case BNXT_VERSION_RUNNING:
787 return devlink_info_version_running_put(req, key, buf);
788 case BNXT_VERSION_STORED:
789 return devlink_info_version_stored_put(req, key, buf);
790 }
791 return 0;
792 }
793
794 #define BNXT_FW_SRT_PATCH "fw.srt.patch"
795 #define BNXT_FW_CRT_PATCH "fw.crt.patch"
796
bnxt_dl_livepatch_info_put(struct bnxt * bp,struct devlink_info_req * req,const char * key)797 static int bnxt_dl_livepatch_info_put(struct bnxt *bp,
798 struct devlink_info_req *req,
799 const char *key)
800 {
801 struct hwrm_fw_livepatch_query_input *query;
802 struct hwrm_fw_livepatch_query_output *resp;
803 u16 flags;
804 int rc;
805
806 if (~bp->fw_cap & BNXT_FW_CAP_LIVEPATCH)
807 return 0;
808
809 rc = hwrm_req_init(bp, query, HWRM_FW_LIVEPATCH_QUERY);
810 if (rc)
811 return rc;
812
813 if (!strcmp(key, BNXT_FW_SRT_PATCH))
814 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_SECURE_FW;
815 else if (!strcmp(key, BNXT_FW_CRT_PATCH))
816 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_COMMON_FW;
817 else
818 goto exit;
819
820 resp = hwrm_req_hold(bp, query);
821 rc = hwrm_req_send(bp, query);
822 if (rc)
823 goto exit;
824
825 flags = le16_to_cpu(resp->status_flags);
826 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE) {
827 resp->active_ver[sizeof(resp->active_ver) - 1] = '\0';
828 rc = devlink_info_version_running_put(req, key, resp->active_ver);
829 if (rc)
830 goto exit;
831 }
832
833 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL) {
834 resp->install_ver[sizeof(resp->install_ver) - 1] = '\0';
835 rc = devlink_info_version_stored_put(req, key, resp->install_ver);
836 if (rc)
837 goto exit;
838 }
839
840 exit:
841 hwrm_req_drop(bp, query);
842 return rc;
843 }
844
845 #define HWRM_FW_VER_STR_LEN 16
846
bnxt_dl_info_get(struct devlink * dl,struct devlink_info_req * req,struct netlink_ext_ack * extack)847 static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
848 struct netlink_ext_ack *extack)
849 {
850 struct hwrm_nvm_get_dev_info_output nvm_dev_info;
851 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
852 struct hwrm_ver_get_output *ver_resp;
853 char mgmt_ver[FW_VER_STR_LEN];
854 char roce_ver[FW_VER_STR_LEN];
855 char ncsi_ver[FW_VER_STR_LEN];
856 char buf[32];
857 u32 ver = 0;
858 int rc;
859
860 if (BNXT_PF(bp) && (bp->flags & BNXT_FLAG_DSN_VALID)) {
861 sprintf(buf, "%02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X",
862 bp->dsn[7], bp->dsn[6], bp->dsn[5], bp->dsn[4],
863 bp->dsn[3], bp->dsn[2], bp->dsn[1], bp->dsn[0]);
864 rc = devlink_info_serial_number_put(req, buf);
865 if (rc)
866 return rc;
867 }
868
869 if (strlen(bp->board_serialno)) {
870 rc = devlink_info_board_serial_number_put(req, bp->board_serialno);
871 if (rc)
872 return rc;
873 }
874
875 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
876 DEVLINK_INFO_VERSION_GENERIC_BOARD_ID,
877 bp->board_partno);
878 if (rc)
879 return rc;
880
881 sprintf(buf, "%X", bp->chip_num);
882 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
883 DEVLINK_INFO_VERSION_GENERIC_ASIC_ID, buf);
884 if (rc)
885 return rc;
886
887 ver_resp = &bp->ver_resp;
888 sprintf(buf, "%c%d", 'A' + ver_resp->chip_rev, ver_resp->chip_metal);
889 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
890 DEVLINK_INFO_VERSION_GENERIC_ASIC_REV, buf);
891 if (rc)
892 return rc;
893
894 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
895 DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
896 bp->nvm_cfg_ver);
897 if (rc)
898 return rc;
899
900 buf[0] = 0;
901 strncat(buf, ver_resp->active_pkg_name, HWRM_FW_VER_STR_LEN);
902 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
903 DEVLINK_INFO_VERSION_GENERIC_FW, buf);
904 if (rc)
905 return rc;
906
907 if (BNXT_PF(bp) && !bnxt_hwrm_get_nvm_cfg_ver(bp, &ver)) {
908 sprintf(buf, "%d.%d.%d", (ver >> 16) & 0xff, (ver >> 8) & 0xff,
909 ver & 0xff);
910 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
911 DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
912 buf);
913 if (rc)
914 return rc;
915 }
916
917 if (ver_resp->flags & VER_GET_RESP_FLAGS_EXT_VER_AVAIL) {
918 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
919 ver_resp->hwrm_fw_major, ver_resp->hwrm_fw_minor,
920 ver_resp->hwrm_fw_build, ver_resp->hwrm_fw_patch);
921
922 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
923 ver_resp->mgmt_fw_major, ver_resp->mgmt_fw_minor,
924 ver_resp->mgmt_fw_build, ver_resp->mgmt_fw_patch);
925
926 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
927 ver_resp->roce_fw_major, ver_resp->roce_fw_minor,
928 ver_resp->roce_fw_build, ver_resp->roce_fw_patch);
929 } else {
930 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
931 ver_resp->hwrm_fw_maj_8b, ver_resp->hwrm_fw_min_8b,
932 ver_resp->hwrm_fw_bld_8b, ver_resp->hwrm_fw_rsvd_8b);
933
934 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
935 ver_resp->mgmt_fw_maj_8b, ver_resp->mgmt_fw_min_8b,
936 ver_resp->mgmt_fw_bld_8b, ver_resp->mgmt_fw_rsvd_8b);
937
938 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
939 ver_resp->roce_fw_maj_8b, ver_resp->roce_fw_min_8b,
940 ver_resp->roce_fw_bld_8b, ver_resp->roce_fw_rsvd_8b);
941 }
942 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
943 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
944 if (rc)
945 return rc;
946
947 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
948 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API,
949 bp->hwrm_ver_supp);
950 if (rc)
951 return rc;
952
953 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
954 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
955 if (rc)
956 return rc;
957
958 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
959 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
960 if (rc)
961 return rc;
962
963 rc = bnxt_hwrm_nvm_get_dev_info(bp, &nvm_dev_info);
964 if (rc ||
965 !(nvm_dev_info.flags & NVM_GET_DEV_INFO_RESP_FLAGS_FW_VER_VALID)) {
966 if (!bnxt_get_pkginfo(bp->dev, buf, sizeof(buf)))
967 return bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
968 DEVLINK_INFO_VERSION_GENERIC_FW,
969 buf);
970 return 0;
971 }
972
973 buf[0] = 0;
974 strncat(buf, nvm_dev_info.pkg_name, HWRM_FW_VER_STR_LEN);
975 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
976 DEVLINK_INFO_VERSION_GENERIC_FW, buf);
977 if (rc)
978 return rc;
979
980 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
981 nvm_dev_info.hwrm_fw_major, nvm_dev_info.hwrm_fw_minor,
982 nvm_dev_info.hwrm_fw_build, nvm_dev_info.hwrm_fw_patch);
983 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
984 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
985 if (rc)
986 return rc;
987
988 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
989 nvm_dev_info.mgmt_fw_major, nvm_dev_info.mgmt_fw_minor,
990 nvm_dev_info.mgmt_fw_build, nvm_dev_info.mgmt_fw_patch);
991 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
992 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
993 if (rc)
994 return rc;
995
996 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
997 nvm_dev_info.roce_fw_major, nvm_dev_info.roce_fw_minor,
998 nvm_dev_info.roce_fw_build, nvm_dev_info.roce_fw_patch);
999 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
1000 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
1001 if (rc)
1002 return rc;
1003
1004 if (BNXT_CHIP_P5_PLUS(bp)) {
1005 rc = bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_SRT_PATCH);
1006 if (rc)
1007 return rc;
1008 }
1009 return bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_CRT_PATCH);
1010
1011 }
1012
bnxt_hwrm_nvm_req(struct bnxt * bp,u32 param_id,void * msg,union devlink_param_value * val)1013 static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg,
1014 union devlink_param_value *val)
1015 {
1016 struct hwrm_nvm_get_variable_input *req = msg;
1017 struct bnxt_dl_nvm_param nvm_param;
1018 struct hwrm_err_output *resp;
1019 union bnxt_nvm_data *data;
1020 dma_addr_t data_dma_addr;
1021 int idx = 0, rc, i;
1022
1023 /* Get/Set NVM CFG parameter is supported only on PFs */
1024 if (BNXT_VF(bp)) {
1025 hwrm_req_drop(bp, req);
1026 return -EPERM;
1027 }
1028
1029 for (i = 0; i < ARRAY_SIZE(nvm_params); i++) {
1030 if (nvm_params[i].id == param_id) {
1031 nvm_param = nvm_params[i];
1032 break;
1033 }
1034 }
1035
1036 if (i == ARRAY_SIZE(nvm_params)) {
1037 hwrm_req_drop(bp, req);
1038 return -EOPNOTSUPP;
1039 }
1040
1041 if (nvm_param.dir_type == BNXT_NVM_PORT_CFG)
1042 idx = bp->pf.port_id;
1043 else if (nvm_param.dir_type == BNXT_NVM_FUNC_CFG)
1044 idx = bp->pf.fw_fid - BNXT_FIRST_PF_FID;
1045
1046 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr);
1047
1048 if (!data) {
1049 hwrm_req_drop(bp, req);
1050 return -ENOMEM;
1051 }
1052
1053 req->dest_data_addr = cpu_to_le64(data_dma_addr);
1054 req->data_len = cpu_to_le16(nvm_param.nvm_num_bits);
1055 req->option_num = cpu_to_le16(nvm_param.offset);
1056 req->index_0 = cpu_to_le16(idx);
1057 if (idx)
1058 req->dimensions = cpu_to_le16(1);
1059
1060 resp = hwrm_req_hold(bp, req);
1061 if (req->req_type == cpu_to_le16(HWRM_NVM_SET_VARIABLE)) {
1062 bnxt_copy_to_nvm_data(data, val, nvm_param.nvm_num_bits,
1063 nvm_param.dl_num_bytes);
1064 rc = hwrm_req_send(bp, msg);
1065 } else {
1066 rc = hwrm_req_send_silent(bp, msg);
1067 if (!rc) {
1068 bnxt_copy_from_nvm_data(val, data,
1069 nvm_param.nvm_num_bits,
1070 nvm_param.dl_num_bytes);
1071 } else {
1072 if (resp->cmd_err ==
1073 NVM_GET_VARIABLE_CMD_ERR_CODE_VAR_NOT_EXIST)
1074 rc = -EOPNOTSUPP;
1075 }
1076 }
1077 hwrm_req_drop(bp, req);
1078 if (rc == -EACCES)
1079 netdev_err(bp->dev, "PF does not have admin privileges to modify NVM config\n");
1080 return rc;
1081 }
1082
bnxt_dl_nvm_param_get(struct devlink * dl,u32 id,struct devlink_param_gset_ctx * ctx)1083 static int bnxt_dl_nvm_param_get(struct devlink *dl, u32 id,
1084 struct devlink_param_gset_ctx *ctx)
1085 {
1086 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1087 struct hwrm_nvm_get_variable_input *req;
1088 int rc;
1089
1090 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE);
1091 if (rc)
1092 return rc;
1093
1094 rc = bnxt_hwrm_nvm_req(bp, id, req, &ctx->val);
1095 if (!rc && id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
1096 ctx->val.vbool = !ctx->val.vbool;
1097
1098 return rc;
1099 }
1100
bnxt_dl_nvm_param_set(struct devlink * dl,u32 id,struct devlink_param_gset_ctx * ctx,struct netlink_ext_ack * extack)1101 static int bnxt_dl_nvm_param_set(struct devlink *dl, u32 id,
1102 struct devlink_param_gset_ctx *ctx,
1103 struct netlink_ext_ack *extack)
1104 {
1105 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1106 struct hwrm_nvm_set_variable_input *req;
1107 int rc;
1108
1109 rc = hwrm_req_init(bp, req, HWRM_NVM_SET_VARIABLE);
1110 if (rc)
1111 return rc;
1112
1113 if (id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
1114 ctx->val.vbool = !ctx->val.vbool;
1115
1116 return bnxt_hwrm_nvm_req(bp, id, req, &ctx->val);
1117 }
1118
bnxt_dl_msix_validate(struct devlink * dl,u32 id,union devlink_param_value val,struct netlink_ext_ack * extack)1119 static int bnxt_dl_msix_validate(struct devlink *dl, u32 id,
1120 union devlink_param_value val,
1121 struct netlink_ext_ack *extack)
1122 {
1123 int max_val = -1;
1124
1125 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX)
1126 max_val = BNXT_MSIX_VEC_MAX;
1127
1128 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN)
1129 max_val = BNXT_MSIX_VEC_MIN_MAX;
1130
1131 if (val.vu32 > max_val) {
1132 NL_SET_ERR_MSG_MOD(extack, "MSIX value is exceeding the range");
1133 return -EINVAL;
1134 }
1135
1136 return 0;
1137 }
1138
bnxt_remote_dev_reset_get(struct devlink * dl,u32 id,struct devlink_param_gset_ctx * ctx)1139 static int bnxt_remote_dev_reset_get(struct devlink *dl, u32 id,
1140 struct devlink_param_gset_ctx *ctx)
1141 {
1142 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1143
1144 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
1145 return -EOPNOTSUPP;
1146
1147 ctx->val.vbool = bnxt_dl_get_remote_reset(dl);
1148 return 0;
1149 }
1150
bnxt_remote_dev_reset_set(struct devlink * dl,u32 id,struct devlink_param_gset_ctx * ctx,struct netlink_ext_ack * extack)1151 static int bnxt_remote_dev_reset_set(struct devlink *dl, u32 id,
1152 struct devlink_param_gset_ctx *ctx,
1153 struct netlink_ext_ack *extack)
1154 {
1155 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1156 int rc;
1157
1158 rc = bnxt_hwrm_remote_dev_reset_set(bp, ctx->val.vbool);
1159 if (rc)
1160 return rc;
1161
1162 bnxt_dl_set_remote_reset(dl, ctx->val.vbool);
1163 return rc;
1164 }
1165
1166 static const struct devlink_param bnxt_dl_params[] = {
1167 DEVLINK_PARAM_GENERIC(ENABLE_SRIOV,
1168 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1169 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1170 NULL),
1171 DEVLINK_PARAM_GENERIC(IGNORE_ARI,
1172 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1173 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1174 NULL),
1175 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MAX,
1176 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1177 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1178 bnxt_dl_msix_validate),
1179 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MIN,
1180 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1181 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1182 bnxt_dl_msix_validate),
1183 DEVLINK_PARAM_DRIVER(BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
1184 "gre_ver_check", DEVLINK_PARAM_TYPE_BOOL,
1185 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1186 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1187 NULL),
1188 /* keep REMOTE_DEV_RESET last, it is excluded based on caps */
1189 DEVLINK_PARAM_GENERIC(ENABLE_REMOTE_DEV_RESET,
1190 BIT(DEVLINK_PARAM_CMODE_RUNTIME),
1191 bnxt_remote_dev_reset_get,
1192 bnxt_remote_dev_reset_set, NULL),
1193 };
1194
bnxt_dl_params_register(struct bnxt * bp)1195 static int bnxt_dl_params_register(struct bnxt *bp)
1196 {
1197 int num_params = ARRAY_SIZE(bnxt_dl_params);
1198 int rc;
1199
1200 if (bp->hwrm_spec_code < 0x10600)
1201 return 0;
1202
1203 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
1204 num_params--;
1205
1206 rc = devlink_params_register(bp->dl, bnxt_dl_params, num_params);
1207 if (rc)
1208 netdev_warn(bp->dev, "devlink_params_register failed. rc=%d\n",
1209 rc);
1210 return rc;
1211 }
1212
bnxt_dl_params_unregister(struct bnxt * bp)1213 static void bnxt_dl_params_unregister(struct bnxt *bp)
1214 {
1215 int num_params = ARRAY_SIZE(bnxt_dl_params);
1216
1217 if (bp->hwrm_spec_code < 0x10600)
1218 return;
1219
1220 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
1221 num_params--;
1222
1223 devlink_params_unregister(bp->dl, bnxt_dl_params, num_params);
1224 }
1225
bnxt_dl_register(struct bnxt * bp)1226 int bnxt_dl_register(struct bnxt *bp)
1227 {
1228 const struct devlink_ops *devlink_ops;
1229 struct devlink_port_attrs attrs = {};
1230 struct bnxt_dl *bp_dl;
1231 struct devlink *dl;
1232 int rc;
1233
1234 if (BNXT_PF(bp))
1235 devlink_ops = &bnxt_dl_ops;
1236 else
1237 devlink_ops = &bnxt_vf_dl_ops;
1238
1239 dl = devlink_alloc(devlink_ops, sizeof(struct bnxt_dl), &bp->pdev->dev);
1240 if (!dl) {
1241 netdev_warn(bp->dev, "devlink_alloc failed\n");
1242 return -ENOMEM;
1243 }
1244
1245 bp->dl = dl;
1246 bp_dl = devlink_priv(dl);
1247 bp_dl->bp = bp;
1248 bnxt_dl_set_remote_reset(dl, true);
1249
1250 /* Add switchdev eswitch mode setting, if SRIOV supported */
1251 if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV) &&
1252 bp->hwrm_spec_code > 0x10803)
1253 bp->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY;
1254
1255 if (!BNXT_PF(bp))
1256 goto out;
1257
1258 attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
1259 attrs.phys.port_number = bp->pf.port_id;
1260 memcpy(attrs.switch_id.id, bp->dsn, sizeof(bp->dsn));
1261 attrs.switch_id.id_len = sizeof(bp->dsn);
1262 devlink_port_attrs_set(&bp->dl_port, &attrs);
1263 rc = devlink_port_register(dl, &bp->dl_port, bp->pf.port_id);
1264 if (rc) {
1265 netdev_err(bp->dev, "devlink_port_register failed\n");
1266 goto err_dl_free;
1267 }
1268
1269 rc = bnxt_dl_params_register(bp);
1270 if (rc)
1271 goto err_dl_port_unreg;
1272
1273 out:
1274 devlink_register(dl);
1275 return 0;
1276
1277 err_dl_port_unreg:
1278 devlink_port_unregister(&bp->dl_port);
1279 err_dl_free:
1280 devlink_free(dl);
1281 return rc;
1282 }
1283
bnxt_dl_unregister(struct bnxt * bp)1284 void bnxt_dl_unregister(struct bnxt *bp)
1285 {
1286 struct devlink *dl = bp->dl;
1287
1288 devlink_unregister(dl);
1289 if (BNXT_PF(bp)) {
1290 bnxt_dl_params_unregister(bp);
1291 devlink_port_unregister(&bp->dl_port);
1292 }
1293 devlink_free(dl);
1294 }
1295