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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
25static 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
34static int
35bnxt_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
57static 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
77static 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
88static 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
100static 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
161static 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
194static 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
209static 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
216static struct devlink_health_reporter *
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
232void 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
240void 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
250void 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
273void 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
291void 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
299static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
300 struct netlink_ext_ack *extack);
301
302static void
303bnxt_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
352static int
353bnxt_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
430static 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 rtnl_lock();
441 if (bnxt_sriov_cfg(bp)) {
442 NL_SET_ERR_MSG_MOD(extack,
443 "reload is unsupported while VFs are allocated or being configured");
444 rtnl_unlock();
445 return -EOPNOTSUPP;
446 }
447 if (bp->dev->reg_state == NETREG_UNREGISTERED) {
448 rtnl_unlock();
449 return -ENODEV;
450 }
451 bnxt_ulp_stop(bp);
452 if (netif_running(bp->dev))
453 bnxt_close_nic(bp, true, true);
454 bnxt_vf_reps_free(bp);
455 rc = bnxt_hwrm_func_drv_unrgtr(bp);
456 if (rc) {
457 NL_SET_ERR_MSG_MOD(extack, "Failed to deregister");
458 if (netif_running(bp->dev))
459 dev_close(bp->dev);
460 rtnl_unlock();
461 break;
462 }
463 bnxt_cancel_reservations(bp, false);
464 bnxt_free_ctx_mem(bp);
465 break;
466 }
467 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: {
468 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET)
469 return bnxt_dl_livepatch_activate(bp, extack);
470 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET) {
471 NL_SET_ERR_MSG_MOD(extack, "Device not capable, requires reboot");
472 return -EOPNOTSUPP;
473 }
474 if (!bnxt_hwrm_reset_permitted(bp)) {
475 NL_SET_ERR_MSG_MOD(extack,
476 "Reset denied by firmware, it may be inhibited by remote driver");
477 return -EPERM;
478 }
479 rtnl_lock();
480 if (bp->dev->reg_state == NETREG_UNREGISTERED) {
481 rtnl_unlock();
482 return -ENODEV;
483 }
484 if (netif_running(bp->dev))
485 set_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
486 rc = bnxt_hwrm_firmware_reset(bp->dev,
487 FW_RESET_REQ_EMBEDDED_PROC_TYPE_CHIP,
488 FW_RESET_REQ_SELFRST_STATUS_SELFRSTASAP,
489 FW_RESET_REQ_FLAGS_RESET_GRACEFUL |
490 FW_RESET_REQ_FLAGS_FW_ACTIVATION);
491 if (rc) {
492 NL_SET_ERR_MSG_MOD(extack, "Failed to activate firmware");
493 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
494 rtnl_unlock();
495 }
496 break;
497 }
498 default:
499 rc = -EOPNOTSUPP;
500 }
501
502 return rc;
503}
504
505static int bnxt_dl_reload_up(struct devlink *dl, enum devlink_reload_action action,
506 enum devlink_reload_limit limit, u32 *actions_performed,
507 struct netlink_ext_ack *extack)
508{
509 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
510 int rc = 0;
511
512 *actions_performed = 0;
513 switch (action) {
514 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: {
515 bnxt_fw_init_one(bp);
516 bnxt_vf_reps_alloc(bp);
517 if (netif_running(bp->dev))
518 rc = bnxt_open_nic(bp, true, true);
519 bnxt_ulp_start(bp, rc);
520 if (!rc) {
521 bnxt_reenable_sriov(bp);
522 bnxt_ptp_reapply_pps(bp);
523 }
524 break;
525 }
526 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: {
527 unsigned long start = jiffies;
528 unsigned long timeout = start + BNXT_DFLT_FW_RST_MAX_DSECS * HZ / 10;
529
530 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET)
531 break;
532 if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)
533 timeout = start + bp->fw_health->normal_func_wait_dsecs * HZ / 10;
534 if (!netif_running(bp->dev))
535 NL_SET_ERR_MSG_MOD(extack,
536 "Device is closed, not waiting for reset notice that will never come");
537 rtnl_unlock();
538 while (test_bit(BNXT_STATE_FW_ACTIVATE, &bp->state)) {
539 if (time_after(jiffies, timeout)) {
540 NL_SET_ERR_MSG_MOD(extack, "Activation incomplete");
541 rc = -ETIMEDOUT;
542 break;
543 }
544 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) {
545 NL_SET_ERR_MSG_MOD(extack, "Activation aborted");
546 rc = -ENODEV;
547 break;
548 }
549 msleep(50);
550 }
551 rtnl_lock();
552 if (!rc)
553 *actions_performed |= BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT);
554 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
555 break;
556 }
557 default:
558 return -EOPNOTSUPP;
559 }
560
561 if (!rc) {
562 bnxt_print_device_info(bp);
563 if (netif_running(bp->dev)) {
564 mutex_lock(&bp->link_lock);
565 bnxt_report_link(bp);
566 mutex_unlock(&bp->link_lock);
567 }
568 *actions_performed |= BIT(action);
569 } else if (netif_running(bp->dev)) {
570 dev_close(bp->dev);
571 }
572 rtnl_unlock();
573 return rc;
574}
575
576static bool bnxt_nvm_test(struct bnxt *bp, struct netlink_ext_ack *extack)
577{
578 bool rc = false;
579 u32 datalen;
580 u16 index;
581 u8 *buf;
582
583 if (bnxt_find_nvram_item(bp->dev, BNX_DIR_TYPE_VPD,
584 BNX_DIR_ORDINAL_FIRST, BNX_DIR_EXT_NONE,
585 &index, NULL, &datalen) || !datalen) {
586 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd entry error");
587 return false;
588 }
589
590 buf = kzalloc(datalen, GFP_KERNEL);
591 if (!buf) {
592 NL_SET_ERR_MSG_MOD(extack, "insufficient memory for nvm test");
593 return false;
594 }
595
596 if (bnxt_get_nvram_item(bp->dev, index, 0, datalen, buf)) {
597 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd read error");
598 goto done;
599 }
600
601 if (bnxt_flash_nvram(bp->dev, BNX_DIR_TYPE_VPD, BNX_DIR_ORDINAL_FIRST,
602 BNX_DIR_EXT_NONE, 0, 0, buf, datalen)) {
603 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd write error");
604 goto done;
605 }
606
607 rc = true;
608
609done:
610 kfree(buf);
611 return rc;
612}
613
614static bool bnxt_dl_selftest_check(struct devlink *dl, unsigned int id,
615 struct netlink_ext_ack *extack)
616{
617 return id == DEVLINK_ATTR_SELFTEST_ID_FLASH;
618}
619
620static enum devlink_selftest_status bnxt_dl_selftest_run(struct devlink *dl,
621 unsigned int id,
622 struct netlink_ext_ack *extack)
623{
624 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
625
626 if (id == DEVLINK_ATTR_SELFTEST_ID_FLASH)
627 return bnxt_nvm_test(bp, extack) ?
628 DEVLINK_SELFTEST_STATUS_PASS :
629 DEVLINK_SELFTEST_STATUS_FAIL;
630
631 return DEVLINK_SELFTEST_STATUS_SKIP;
632}
633
634static const struct devlink_ops bnxt_dl_ops = {
635#ifdef CONFIG_BNXT_SRIOV
636 .eswitch_mode_set = bnxt_dl_eswitch_mode_set,
637 .eswitch_mode_get = bnxt_dl_eswitch_mode_get,
638#endif /* CONFIG_BNXT_SRIOV */
639 .info_get = bnxt_dl_info_get,
640 .flash_update = bnxt_dl_flash_update,
641 .reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT) |
642 BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE),
643 .reload_limits = BIT(DEVLINK_RELOAD_LIMIT_NO_RESET),
644 .reload_down = bnxt_dl_reload_down,
645 .reload_up = bnxt_dl_reload_up,
646 .selftest_check = bnxt_dl_selftest_check,
647 .selftest_run = bnxt_dl_selftest_run,
648};
649
650static const struct devlink_ops bnxt_vf_dl_ops;
651
652enum bnxt_dl_param_id {
653 BNXT_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
654 BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
655};
656
657static const struct bnxt_dl_nvm_param nvm_params[] = {
658 {DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, NVM_OFF_ENABLE_SRIOV,
659 BNXT_NVM_SHARED_CFG, 1, 1},
660 {DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, NVM_OFF_IGNORE_ARI,
661 BNXT_NVM_SHARED_CFG, 1, 1},
662 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
663 NVM_OFF_MSIX_VEC_PER_PF_MAX, BNXT_NVM_SHARED_CFG, 10, 4},
664 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
665 NVM_OFF_MSIX_VEC_PER_PF_MIN, BNXT_NVM_SHARED_CFG, 7, 4},
666 {BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, NVM_OFF_DIS_GRE_VER_CHECK,
667 BNXT_NVM_SHARED_CFG, 1, 1},
668};
669
670union bnxt_nvm_data {
671 u8 val8;
672 __le32 val32;
673};
674
675static void bnxt_copy_to_nvm_data(union bnxt_nvm_data *dst,
676 union devlink_param_value *src,
677 int nvm_num_bits, int dl_num_bytes)
678{
679 u32 val32 = 0;
680
681 if (nvm_num_bits == 1) {
682 dst->val8 = src->vbool;
683 return;
684 }
685 if (dl_num_bytes == 4)
686 val32 = src->vu32;
687 else if (dl_num_bytes == 2)
688 val32 = (u32)src->vu16;
689 else if (dl_num_bytes == 1)
690 val32 = (u32)src->vu8;
691 dst->val32 = cpu_to_le32(val32);
692}
693
694static void bnxt_copy_from_nvm_data(union devlink_param_value *dst,
695 union bnxt_nvm_data *src,
696 int nvm_num_bits, int dl_num_bytes)
697{
698 u32 val32;
699
700 if (nvm_num_bits == 1) {
701 dst->vbool = src->val8;
702 return;
703 }
704 val32 = le32_to_cpu(src->val32);
705 if (dl_num_bytes == 4)
706 dst->vu32 = val32;
707 else if (dl_num_bytes == 2)
708 dst->vu16 = (u16)val32;
709 else if (dl_num_bytes == 1)
710 dst->vu8 = (u8)val32;
711}
712
713static int bnxt_hwrm_get_nvm_cfg_ver(struct bnxt *bp, u32 *nvm_cfg_ver)
714{
715 struct hwrm_nvm_get_variable_input *req;
716 u16 bytes = BNXT_NVM_CFG_VER_BYTES;
717 u16 bits = BNXT_NVM_CFG_VER_BITS;
718 union devlink_param_value ver;
719 union bnxt_nvm_data *data;
720 dma_addr_t data_dma_addr;
721 int rc, i = 2;
722 u16 dim = 1;
723
724 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE);
725 if (rc)
726 return rc;
727
728 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr);
729 if (!data) {
730 rc = -ENOMEM;
731 goto exit;
732 }
733
734 /* earlier devices present as an array of raw bytes */
735 if (!BNXT_CHIP_P5_PLUS(bp)) {
736 dim = 0;
737 i = 0;
738 bits *= 3; /* array of 3 version components */
739 bytes *= 4; /* copy whole word */
740 }
741
742 hwrm_req_hold(bp, req);
743 req->dest_data_addr = cpu_to_le64(data_dma_addr);
744 req->data_len = cpu_to_le16(bits);
745 req->option_num = cpu_to_le16(NVM_OFF_NVM_CFG_VER);
746 req->dimensions = cpu_to_le16(dim);
747
748 while (i >= 0) {
749 req->index_0 = cpu_to_le16(i--);
750 rc = hwrm_req_send_silent(bp, req);
751 if (rc)
752 goto exit;
753 bnxt_copy_from_nvm_data(&ver, data, bits, bytes);
754
755 if (BNXT_CHIP_P5_PLUS(bp)) {
756 *nvm_cfg_ver <<= 8;
757 *nvm_cfg_ver |= ver.vu8;
758 } else {
759 *nvm_cfg_ver = ver.vu32;
760 }
761 }
762
763exit:
764 hwrm_req_drop(bp, req);
765 return rc;
766}
767
768static int bnxt_dl_info_put(struct bnxt *bp, struct devlink_info_req *req,
769 enum bnxt_dl_version_type type, const char *key,
770 char *buf)
771{
772 if (!strlen(buf))
773 return 0;
774
775 if ((bp->flags & BNXT_FLAG_CHIP_P5_PLUS) &&
776 (!strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_NCSI) ||
777 !strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_ROCE)))
778 return 0;
779
780 switch (type) {
781 case BNXT_VERSION_FIXED:
782 return devlink_info_version_fixed_put(req, key, buf);
783 case BNXT_VERSION_RUNNING:
784 return devlink_info_version_running_put(req, key, buf);
785 case BNXT_VERSION_STORED:
786 return devlink_info_version_stored_put(req, key, buf);
787 }
788 return 0;
789}
790
791#define BNXT_FW_SRT_PATCH "fw.srt.patch"
792#define BNXT_FW_CRT_PATCH "fw.crt.patch"
793
794static int bnxt_dl_livepatch_info_put(struct bnxt *bp,
795 struct devlink_info_req *req,
796 const char *key)
797{
798 struct hwrm_fw_livepatch_query_input *query;
799 struct hwrm_fw_livepatch_query_output *resp;
800 u16 flags;
801 int rc;
802
803 if (~bp->fw_cap & BNXT_FW_CAP_LIVEPATCH)
804 return 0;
805
806 rc = hwrm_req_init(bp, query, HWRM_FW_LIVEPATCH_QUERY);
807 if (rc)
808 return rc;
809
810 if (!strcmp(key, BNXT_FW_SRT_PATCH))
811 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_SECURE_FW;
812 else if (!strcmp(key, BNXT_FW_CRT_PATCH))
813 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_COMMON_FW;
814 else
815 goto exit;
816
817 resp = hwrm_req_hold(bp, query);
818 rc = hwrm_req_send(bp, query);
819 if (rc)
820 goto exit;
821
822 flags = le16_to_cpu(resp->status_flags);
823 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE) {
824 resp->active_ver[sizeof(resp->active_ver) - 1] = '\0';
825 rc = devlink_info_version_running_put(req, key, resp->active_ver);
826 if (rc)
827 goto exit;
828 }
829
830 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL) {
831 resp->install_ver[sizeof(resp->install_ver) - 1] = '\0';
832 rc = devlink_info_version_stored_put(req, key, resp->install_ver);
833 if (rc)
834 goto exit;
835 }
836
837exit:
838 hwrm_req_drop(bp, query);
839 return rc;
840}
841
842#define HWRM_FW_VER_STR_LEN 16
843
844static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
845 struct netlink_ext_ack *extack)
846{
847 struct hwrm_nvm_get_dev_info_output nvm_dev_info;
848 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
849 struct hwrm_ver_get_output *ver_resp;
850 char mgmt_ver[FW_VER_STR_LEN];
851 char roce_ver[FW_VER_STR_LEN];
852 char ncsi_ver[FW_VER_STR_LEN];
853 char buf[32];
854 u32 ver = 0;
855 int rc;
856
857 if (BNXT_PF(bp) && (bp->flags & BNXT_FLAG_DSN_VALID)) {
858 sprintf(buf, "%02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X",
859 bp->dsn[7], bp->dsn[6], bp->dsn[5], bp->dsn[4],
860 bp->dsn[3], bp->dsn[2], bp->dsn[1], bp->dsn[0]);
861 rc = devlink_info_serial_number_put(req, buf);
862 if (rc)
863 return rc;
864 }
865
866 if (strlen(bp->board_serialno)) {
867 rc = devlink_info_board_serial_number_put(req, bp->board_serialno);
868 if (rc)
869 return rc;
870 }
871
872 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
873 DEVLINK_INFO_VERSION_GENERIC_BOARD_ID,
874 bp->board_partno);
875 if (rc)
876 return rc;
877
878 sprintf(buf, "%X", bp->chip_num);
879 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
880 DEVLINK_INFO_VERSION_GENERIC_ASIC_ID, buf);
881 if (rc)
882 return rc;
883
884 ver_resp = &bp->ver_resp;
885 sprintf(buf, "%c%d", 'A' + ver_resp->chip_rev, ver_resp->chip_metal);
886 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
887 DEVLINK_INFO_VERSION_GENERIC_ASIC_REV, buf);
888 if (rc)
889 return rc;
890
891 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
892 DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
893 bp->nvm_cfg_ver);
894 if (rc)
895 return rc;
896
897 buf[0] = 0;
898 strncat(buf, ver_resp->active_pkg_name, HWRM_FW_VER_STR_LEN);
899 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
900 DEVLINK_INFO_VERSION_GENERIC_FW, buf);
901 if (rc)
902 return rc;
903
904 if (BNXT_PF(bp) && !bnxt_hwrm_get_nvm_cfg_ver(bp, &ver)) {
905 sprintf(buf, "%d.%d.%d", (ver >> 16) & 0xff, (ver >> 8) & 0xff,
906 ver & 0xff);
907 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
908 DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
909 buf);
910 if (rc)
911 return rc;
912 }
913
914 if (ver_resp->flags & VER_GET_RESP_FLAGS_EXT_VER_AVAIL) {
915 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
916 ver_resp->hwrm_fw_major, ver_resp->hwrm_fw_minor,
917 ver_resp->hwrm_fw_build, ver_resp->hwrm_fw_patch);
918
919 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
920 ver_resp->mgmt_fw_major, ver_resp->mgmt_fw_minor,
921 ver_resp->mgmt_fw_build, ver_resp->mgmt_fw_patch);
922
923 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
924 ver_resp->roce_fw_major, ver_resp->roce_fw_minor,
925 ver_resp->roce_fw_build, ver_resp->roce_fw_patch);
926 } else {
927 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
928 ver_resp->hwrm_fw_maj_8b, ver_resp->hwrm_fw_min_8b,
929 ver_resp->hwrm_fw_bld_8b, ver_resp->hwrm_fw_rsvd_8b);
930
931 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
932 ver_resp->mgmt_fw_maj_8b, ver_resp->mgmt_fw_min_8b,
933 ver_resp->mgmt_fw_bld_8b, ver_resp->mgmt_fw_rsvd_8b);
934
935 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
936 ver_resp->roce_fw_maj_8b, ver_resp->roce_fw_min_8b,
937 ver_resp->roce_fw_bld_8b, ver_resp->roce_fw_rsvd_8b);
938 }
939 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
940 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
941 if (rc)
942 return rc;
943
944 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
945 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API,
946 bp->hwrm_ver_supp);
947 if (rc)
948 return rc;
949
950 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
951 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
952 if (rc)
953 return rc;
954
955 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
956 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
957 if (rc)
958 return rc;
959
960 rc = bnxt_hwrm_nvm_get_dev_info(bp, &nvm_dev_info);
961 if (rc ||
962 !(nvm_dev_info.flags & NVM_GET_DEV_INFO_RESP_FLAGS_FW_VER_VALID)) {
963 if (!bnxt_get_pkginfo(bp->dev, buf, sizeof(buf)))
964 return bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
965 DEVLINK_INFO_VERSION_GENERIC_FW,
966 buf);
967 return 0;
968 }
969
970 buf[0] = 0;
971 strncat(buf, nvm_dev_info.pkg_name, HWRM_FW_VER_STR_LEN);
972 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
973 DEVLINK_INFO_VERSION_GENERIC_FW, buf);
974 if (rc)
975 return rc;
976
977 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
978 nvm_dev_info.hwrm_fw_major, nvm_dev_info.hwrm_fw_minor,
979 nvm_dev_info.hwrm_fw_build, nvm_dev_info.hwrm_fw_patch);
980 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
981 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
982 if (rc)
983 return rc;
984
985 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
986 nvm_dev_info.mgmt_fw_major, nvm_dev_info.mgmt_fw_minor,
987 nvm_dev_info.mgmt_fw_build, nvm_dev_info.mgmt_fw_patch);
988 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
989 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
990 if (rc)
991 return rc;
992
993 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
994 nvm_dev_info.roce_fw_major, nvm_dev_info.roce_fw_minor,
995 nvm_dev_info.roce_fw_build, nvm_dev_info.roce_fw_patch);
996 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
997 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
998 if (rc)
999 return rc;
1000
1001 if (BNXT_CHIP_P5_PLUS(bp)) {
1002 rc = bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_SRT_PATCH);
1003 if (rc)
1004 return rc;
1005 }
1006 return bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_CRT_PATCH);
1007
1008}
1009
1010static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg,
1011 union devlink_param_value *val)
1012{
1013 struct hwrm_nvm_get_variable_input *req = msg;
1014 struct bnxt_dl_nvm_param nvm_param;
1015 struct hwrm_err_output *resp;
1016 union bnxt_nvm_data *data;
1017 dma_addr_t data_dma_addr;
1018 int idx = 0, rc, i;
1019
1020 /* Get/Set NVM CFG parameter is supported only on PFs */
1021 if (BNXT_VF(bp)) {
1022 hwrm_req_drop(bp, req);
1023 return -EPERM;
1024 }
1025
1026 for (i = 0; i < ARRAY_SIZE(nvm_params); i++) {
1027 if (nvm_params[i].id == param_id) {
1028 nvm_param = nvm_params[i];
1029 break;
1030 }
1031 }
1032
1033 if (i == ARRAY_SIZE(nvm_params)) {
1034 hwrm_req_drop(bp, req);
1035 return -EOPNOTSUPP;
1036 }
1037
1038 if (nvm_param.dir_type == BNXT_NVM_PORT_CFG)
1039 idx = bp->pf.port_id;
1040 else if (nvm_param.dir_type == BNXT_NVM_FUNC_CFG)
1041 idx = bp->pf.fw_fid - BNXT_FIRST_PF_FID;
1042
1043 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr);
1044
1045 if (!data) {
1046 hwrm_req_drop(bp, req);
1047 return -ENOMEM;
1048 }
1049
1050 req->dest_data_addr = cpu_to_le64(data_dma_addr);
1051 req->data_len = cpu_to_le16(nvm_param.nvm_num_bits);
1052 req->option_num = cpu_to_le16(nvm_param.offset);
1053 req->index_0 = cpu_to_le16(idx);
1054 if (idx)
1055 req->dimensions = cpu_to_le16(1);
1056
1057 resp = hwrm_req_hold(bp, req);
1058 if (req->req_type == cpu_to_le16(HWRM_NVM_SET_VARIABLE)) {
1059 bnxt_copy_to_nvm_data(data, val, nvm_param.nvm_num_bits,
1060 nvm_param.dl_num_bytes);
1061 rc = hwrm_req_send(bp, msg);
1062 } else {
1063 rc = hwrm_req_send_silent(bp, msg);
1064 if (!rc) {
1065 bnxt_copy_from_nvm_data(val, data,
1066 nvm_param.nvm_num_bits,
1067 nvm_param.dl_num_bytes);
1068 } else {
1069 if (resp->cmd_err ==
1070 NVM_GET_VARIABLE_CMD_ERR_CODE_VAR_NOT_EXIST)
1071 rc = -EOPNOTSUPP;
1072 }
1073 }
1074 hwrm_req_drop(bp, req);
1075 if (rc == -EACCES)
1076 netdev_err(bp->dev, "PF does not have admin privileges to modify NVM config\n");
1077 return rc;
1078}
1079
1080static int bnxt_dl_nvm_param_get(struct devlink *dl, u32 id,
1081 struct devlink_param_gset_ctx *ctx)
1082{
1083 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1084 struct hwrm_nvm_get_variable_input *req;
1085 int rc;
1086
1087 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE);
1088 if (rc)
1089 return rc;
1090
1091 rc = bnxt_hwrm_nvm_req(bp, id, req, &ctx->val);
1092 if (!rc && id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
1093 ctx->val.vbool = !ctx->val.vbool;
1094
1095 return rc;
1096}
1097
1098static int bnxt_dl_nvm_param_set(struct devlink *dl, u32 id,
1099 struct devlink_param_gset_ctx *ctx)
1100{
1101 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1102 struct hwrm_nvm_set_variable_input *req;
1103 int rc;
1104
1105 rc = hwrm_req_init(bp, req, HWRM_NVM_SET_VARIABLE);
1106 if (rc)
1107 return rc;
1108
1109 if (id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
1110 ctx->val.vbool = !ctx->val.vbool;
1111
1112 return bnxt_hwrm_nvm_req(bp, id, req, &ctx->val);
1113}
1114
1115static int bnxt_dl_msix_validate(struct devlink *dl, u32 id,
1116 union devlink_param_value val,
1117 struct netlink_ext_ack *extack)
1118{
1119 int max_val = -1;
1120
1121 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX)
1122 max_val = BNXT_MSIX_VEC_MAX;
1123
1124 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN)
1125 max_val = BNXT_MSIX_VEC_MIN_MAX;
1126
1127 if (val.vu32 > max_val) {
1128 NL_SET_ERR_MSG_MOD(extack, "MSIX value is exceeding the range");
1129 return -EINVAL;
1130 }
1131
1132 return 0;
1133}
1134
1135static int bnxt_remote_dev_reset_get(struct devlink *dl, u32 id,
1136 struct devlink_param_gset_ctx *ctx)
1137{
1138 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1139
1140 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
1141 return -EOPNOTSUPP;
1142
1143 ctx->val.vbool = bnxt_dl_get_remote_reset(dl);
1144 return 0;
1145}
1146
1147static int bnxt_remote_dev_reset_set(struct devlink *dl, u32 id,
1148 struct devlink_param_gset_ctx *ctx)
1149{
1150 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1151 int rc;
1152
1153 rc = bnxt_hwrm_remote_dev_reset_set(bp, ctx->val.vbool);
1154 if (rc)
1155 return rc;
1156
1157 bnxt_dl_set_remote_reset(dl, ctx->val.vbool);
1158 return rc;
1159}
1160
1161static const struct devlink_param bnxt_dl_params[] = {
1162 DEVLINK_PARAM_GENERIC(ENABLE_SRIOV,
1163 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1164 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1165 NULL),
1166 DEVLINK_PARAM_GENERIC(IGNORE_ARI,
1167 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1168 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1169 NULL),
1170 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MAX,
1171 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1172 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1173 bnxt_dl_msix_validate),
1174 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MIN,
1175 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1176 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1177 bnxt_dl_msix_validate),
1178 DEVLINK_PARAM_DRIVER(BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
1179 "gre_ver_check", DEVLINK_PARAM_TYPE_BOOL,
1180 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1181 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1182 NULL),
1183 /* keep REMOTE_DEV_RESET last, it is excluded based on caps */
1184 DEVLINK_PARAM_GENERIC(ENABLE_REMOTE_DEV_RESET,
1185 BIT(DEVLINK_PARAM_CMODE_RUNTIME),
1186 bnxt_remote_dev_reset_get,
1187 bnxt_remote_dev_reset_set, NULL),
1188};
1189
1190static int bnxt_dl_params_register(struct bnxt *bp)
1191{
1192 int num_params = ARRAY_SIZE(bnxt_dl_params);
1193 int rc;
1194
1195 if (bp->hwrm_spec_code < 0x10600)
1196 return 0;
1197
1198 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
1199 num_params--;
1200
1201 rc = devlink_params_register(bp->dl, bnxt_dl_params, num_params);
1202 if (rc)
1203 netdev_warn(bp->dev, "devlink_params_register failed. rc=%d\n",
1204 rc);
1205 return rc;
1206}
1207
1208static void bnxt_dl_params_unregister(struct bnxt *bp)
1209{
1210 int num_params = ARRAY_SIZE(bnxt_dl_params);
1211
1212 if (bp->hwrm_spec_code < 0x10600)
1213 return;
1214
1215 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
1216 num_params--;
1217
1218 devlink_params_unregister(bp->dl, bnxt_dl_params, num_params);
1219}
1220
1221int bnxt_dl_register(struct bnxt *bp)
1222{
1223 const struct devlink_ops *devlink_ops;
1224 struct devlink_port_attrs attrs = {};
1225 struct bnxt_dl *bp_dl;
1226 struct devlink *dl;
1227 int rc;
1228
1229 if (BNXT_PF(bp))
1230 devlink_ops = &bnxt_dl_ops;
1231 else
1232 devlink_ops = &bnxt_vf_dl_ops;
1233
1234 dl = devlink_alloc(devlink_ops, sizeof(struct bnxt_dl), &bp->pdev->dev);
1235 if (!dl) {
1236 netdev_warn(bp->dev, "devlink_alloc failed\n");
1237 return -ENOMEM;
1238 }
1239
1240 bp->dl = dl;
1241 bp_dl = devlink_priv(dl);
1242 bp_dl->bp = bp;
1243 bnxt_dl_set_remote_reset(dl, true);
1244
1245 /* Add switchdev eswitch mode setting, if SRIOV supported */
1246 if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV) &&
1247 bp->hwrm_spec_code > 0x10803)
1248 bp->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY;
1249
1250 if (!BNXT_PF(bp))
1251 goto out;
1252
1253 attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
1254 attrs.phys.port_number = bp->pf.port_id;
1255 memcpy(attrs.switch_id.id, bp->dsn, sizeof(bp->dsn));
1256 attrs.switch_id.id_len = sizeof(bp->dsn);
1257 devlink_port_attrs_set(&bp->dl_port, &attrs);
1258 rc = devlink_port_register(dl, &bp->dl_port, bp->pf.port_id);
1259 if (rc) {
1260 netdev_err(bp->dev, "devlink_port_register failed\n");
1261 goto err_dl_free;
1262 }
1263
1264 rc = bnxt_dl_params_register(bp);
1265 if (rc)
1266 goto err_dl_port_unreg;
1267
1268out:
1269 devlink_register(dl);
1270 return 0;
1271
1272err_dl_port_unreg:
1273 devlink_port_unregister(&bp->dl_port);
1274err_dl_free:
1275 devlink_free(dl);
1276 return rc;
1277}
1278
1279void bnxt_dl_unregister(struct bnxt *bp)
1280{
1281 struct devlink *dl = bp->dl;
1282
1283 devlink_unregister(dl);
1284 if (BNXT_PF(bp)) {
1285 bnxt_dl_params_unregister(bp);
1286 devlink_port_unregister(&bp->dl_port);
1287 }
1288 devlink_free(dl);
1289}
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
25static 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
34static int
35bnxt_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
57static 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
77static 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
88static 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
100static 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
159unlock:
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
183static 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
218exit:
219 vfree(data);
220 return rc;
221}
222
223static 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
238static 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
245static struct devlink_health_reporter *
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
261void 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
269void 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
279void 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
302void 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
320void 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
328static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
329 struct netlink_ext_ack *extack);
330
331static void
332bnxt_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
381static int
382bnxt_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
459static 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 rc = bnxt_close_nic(bp, true, true);
483 if (rc) {
484 NL_SET_ERR_MSG_MOD(extack, "Failed to close");
485 dev_close(bp->dev);
486 rtnl_unlock();
487 break;
488 }
489 }
490 bnxt_vf_reps_free(bp);
491 rc = bnxt_hwrm_func_drv_unrgtr(bp);
492 if (rc) {
493 NL_SET_ERR_MSG_MOD(extack, "Failed to deregister");
494 if (netif_running(bp->dev))
495 dev_close(bp->dev);
496 rtnl_unlock();
497 break;
498 }
499 bnxt_cancel_reservations(bp, false);
500 bnxt_free_ctx_mem(bp);
501 kfree(bp->ctx);
502 bp->ctx = NULL;
503 break;
504 }
505 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: {
506 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET)
507 return bnxt_dl_livepatch_activate(bp, extack);
508 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET) {
509 NL_SET_ERR_MSG_MOD(extack, "Device not capable, requires reboot");
510 return -EOPNOTSUPP;
511 }
512 if (!bnxt_hwrm_reset_permitted(bp)) {
513 NL_SET_ERR_MSG_MOD(extack,
514 "Reset denied by firmware, it may be inhibited by remote driver");
515 return -EPERM;
516 }
517 rtnl_lock();
518 if (bp->dev->reg_state == NETREG_UNREGISTERED) {
519 rtnl_unlock();
520 return -ENODEV;
521 }
522 if (netif_running(bp->dev))
523 set_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
524 rc = bnxt_hwrm_firmware_reset(bp->dev,
525 FW_RESET_REQ_EMBEDDED_PROC_TYPE_CHIP,
526 FW_RESET_REQ_SELFRST_STATUS_SELFRSTASAP,
527 FW_RESET_REQ_FLAGS_RESET_GRACEFUL |
528 FW_RESET_REQ_FLAGS_FW_ACTIVATION);
529 if (rc) {
530 NL_SET_ERR_MSG_MOD(extack, "Failed to activate firmware");
531 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
532 rtnl_unlock();
533 }
534 break;
535 }
536 default:
537 rc = -EOPNOTSUPP;
538 }
539
540 return rc;
541}
542
543static int bnxt_dl_reload_up(struct devlink *dl, enum devlink_reload_action action,
544 enum devlink_reload_limit limit, u32 *actions_performed,
545 struct netlink_ext_ack *extack)
546{
547 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
548 int rc = 0;
549
550 *actions_performed = 0;
551 switch (action) {
552 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: {
553 bnxt_fw_init_one(bp);
554 bnxt_vf_reps_alloc(bp);
555 if (netif_running(bp->dev))
556 rc = bnxt_open_nic(bp, true, true);
557 bnxt_ulp_start(bp, rc);
558 if (!rc) {
559 bnxt_reenable_sriov(bp);
560 bnxt_ptp_reapply_pps(bp);
561 }
562 break;
563 }
564 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: {
565 unsigned long start = jiffies;
566 unsigned long timeout = start + BNXT_DFLT_FW_RST_MAX_DSECS * HZ / 10;
567
568 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET)
569 break;
570 if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)
571 timeout = start + bp->fw_health->normal_func_wait_dsecs * HZ / 10;
572 if (!netif_running(bp->dev))
573 NL_SET_ERR_MSG_MOD(extack,
574 "Device is closed, not waiting for reset notice that will never come");
575 rtnl_unlock();
576 while (test_bit(BNXT_STATE_FW_ACTIVATE, &bp->state)) {
577 if (time_after(jiffies, timeout)) {
578 NL_SET_ERR_MSG_MOD(extack, "Activation incomplete");
579 rc = -ETIMEDOUT;
580 break;
581 }
582 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) {
583 NL_SET_ERR_MSG_MOD(extack, "Activation aborted");
584 rc = -ENODEV;
585 break;
586 }
587 msleep(50);
588 }
589 rtnl_lock();
590 if (!rc)
591 *actions_performed |= BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT);
592 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
593 break;
594 }
595 default:
596 return -EOPNOTSUPP;
597 }
598
599 if (!rc) {
600 bnxt_print_device_info(bp);
601 if (netif_running(bp->dev)) {
602 mutex_lock(&bp->link_lock);
603 bnxt_report_link(bp);
604 mutex_unlock(&bp->link_lock);
605 }
606 *actions_performed |= BIT(action);
607 } else if (netif_running(bp->dev)) {
608 dev_close(bp->dev);
609 }
610 rtnl_unlock();
611 return rc;
612}
613
614static bool bnxt_nvm_test(struct bnxt *bp, struct netlink_ext_ack *extack)
615{
616 bool rc = false;
617 u32 datalen;
618 u16 index;
619 u8 *buf;
620
621 if (bnxt_find_nvram_item(bp->dev, BNX_DIR_TYPE_VPD,
622 BNX_DIR_ORDINAL_FIRST, BNX_DIR_EXT_NONE,
623 &index, NULL, &datalen) || !datalen) {
624 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd entry error");
625 return false;
626 }
627
628 buf = kzalloc(datalen, GFP_KERNEL);
629 if (!buf) {
630 NL_SET_ERR_MSG_MOD(extack, "insufficient memory for nvm test");
631 return false;
632 }
633
634 if (bnxt_get_nvram_item(bp->dev, index, 0, datalen, buf)) {
635 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd read error");
636 goto done;
637 }
638
639 if (bnxt_flash_nvram(bp->dev, BNX_DIR_TYPE_VPD, BNX_DIR_ORDINAL_FIRST,
640 BNX_DIR_EXT_NONE, 0, 0, buf, datalen)) {
641 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd write error");
642 goto done;
643 }
644
645 rc = true;
646
647done:
648 kfree(buf);
649 return rc;
650}
651
652static bool bnxt_dl_selftest_check(struct devlink *dl, unsigned int id,
653 struct netlink_ext_ack *extack)
654{
655 return id == DEVLINK_ATTR_SELFTEST_ID_FLASH;
656}
657
658static enum devlink_selftest_status bnxt_dl_selftest_run(struct devlink *dl,
659 unsigned int id,
660 struct netlink_ext_ack *extack)
661{
662 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
663
664 if (id == DEVLINK_ATTR_SELFTEST_ID_FLASH)
665 return bnxt_nvm_test(bp, extack) ?
666 DEVLINK_SELFTEST_STATUS_PASS :
667 DEVLINK_SELFTEST_STATUS_FAIL;
668
669 return DEVLINK_SELFTEST_STATUS_SKIP;
670}
671
672static const struct devlink_ops bnxt_dl_ops = {
673#ifdef CONFIG_BNXT_SRIOV
674 .eswitch_mode_set = bnxt_dl_eswitch_mode_set,
675 .eswitch_mode_get = bnxt_dl_eswitch_mode_get,
676#endif /* CONFIG_BNXT_SRIOV */
677 .info_get = bnxt_dl_info_get,
678 .flash_update = bnxt_dl_flash_update,
679 .reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT) |
680 BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE),
681 .reload_limits = BIT(DEVLINK_RELOAD_LIMIT_NO_RESET),
682 .reload_down = bnxt_dl_reload_down,
683 .reload_up = bnxt_dl_reload_up,
684 .selftest_check = bnxt_dl_selftest_check,
685 .selftest_run = bnxt_dl_selftest_run,
686};
687
688static const struct devlink_ops bnxt_vf_dl_ops;
689
690enum bnxt_dl_param_id {
691 BNXT_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
692 BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
693};
694
695static const struct bnxt_dl_nvm_param nvm_params[] = {
696 {DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, NVM_OFF_ENABLE_SRIOV,
697 BNXT_NVM_SHARED_CFG, 1, 1},
698 {DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, NVM_OFF_IGNORE_ARI,
699 BNXT_NVM_SHARED_CFG, 1, 1},
700 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
701 NVM_OFF_MSIX_VEC_PER_PF_MAX, BNXT_NVM_SHARED_CFG, 10, 4},
702 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
703 NVM_OFF_MSIX_VEC_PER_PF_MIN, BNXT_NVM_SHARED_CFG, 7, 4},
704 {BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, NVM_OFF_DIS_GRE_VER_CHECK,
705 BNXT_NVM_SHARED_CFG, 1, 1},
706};
707
708union bnxt_nvm_data {
709 u8 val8;
710 __le32 val32;
711};
712
713static void bnxt_copy_to_nvm_data(union bnxt_nvm_data *dst,
714 union devlink_param_value *src,
715 int nvm_num_bits, int dl_num_bytes)
716{
717 u32 val32 = 0;
718
719 if (nvm_num_bits == 1) {
720 dst->val8 = src->vbool;
721 return;
722 }
723 if (dl_num_bytes == 4)
724 val32 = src->vu32;
725 else if (dl_num_bytes == 2)
726 val32 = (u32)src->vu16;
727 else if (dl_num_bytes == 1)
728 val32 = (u32)src->vu8;
729 dst->val32 = cpu_to_le32(val32);
730}
731
732static void bnxt_copy_from_nvm_data(union devlink_param_value *dst,
733 union bnxt_nvm_data *src,
734 int nvm_num_bits, int dl_num_bytes)
735{
736 u32 val32;
737
738 if (nvm_num_bits == 1) {
739 dst->vbool = src->val8;
740 return;
741 }
742 val32 = le32_to_cpu(src->val32);
743 if (dl_num_bytes == 4)
744 dst->vu32 = val32;
745 else if (dl_num_bytes == 2)
746 dst->vu16 = (u16)val32;
747 else if (dl_num_bytes == 1)
748 dst->vu8 = (u8)val32;
749}
750
751static int bnxt_hwrm_get_nvm_cfg_ver(struct bnxt *bp, u32 *nvm_cfg_ver)
752{
753 struct hwrm_nvm_get_variable_input *req;
754 u16 bytes = BNXT_NVM_CFG_VER_BYTES;
755 u16 bits = BNXT_NVM_CFG_VER_BITS;
756 union devlink_param_value ver;
757 union bnxt_nvm_data *data;
758 dma_addr_t data_dma_addr;
759 int rc, i = 2;
760 u16 dim = 1;
761
762 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE);
763 if (rc)
764 return rc;
765
766 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr);
767 if (!data) {
768 rc = -ENOMEM;
769 goto exit;
770 }
771
772 /* earlier devices present as an array of raw bytes */
773 if (!BNXT_CHIP_P5(bp)) {
774 dim = 0;
775 i = 0;
776 bits *= 3; /* array of 3 version components */
777 bytes *= 4; /* copy whole word */
778 }
779
780 hwrm_req_hold(bp, req);
781 req->dest_data_addr = cpu_to_le64(data_dma_addr);
782 req->data_len = cpu_to_le16(bits);
783 req->option_num = cpu_to_le16(NVM_OFF_NVM_CFG_VER);
784 req->dimensions = cpu_to_le16(dim);
785
786 while (i >= 0) {
787 req->index_0 = cpu_to_le16(i--);
788 rc = hwrm_req_send_silent(bp, req);
789 if (rc)
790 goto exit;
791 bnxt_copy_from_nvm_data(&ver, data, bits, bytes);
792
793 if (BNXT_CHIP_P5(bp)) {
794 *nvm_cfg_ver <<= 8;
795 *nvm_cfg_ver |= ver.vu8;
796 } else {
797 *nvm_cfg_ver = ver.vu32;
798 }
799 }
800
801exit:
802 hwrm_req_drop(bp, req);
803 return rc;
804}
805
806static int bnxt_dl_info_put(struct bnxt *bp, struct devlink_info_req *req,
807 enum bnxt_dl_version_type type, const char *key,
808 char *buf)
809{
810 if (!strlen(buf))
811 return 0;
812
813 if ((bp->flags & BNXT_FLAG_CHIP_P5) &&
814 (!strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_NCSI) ||
815 !strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_ROCE)))
816 return 0;
817
818 switch (type) {
819 case BNXT_VERSION_FIXED:
820 return devlink_info_version_fixed_put(req, key, buf);
821 case BNXT_VERSION_RUNNING:
822 return devlink_info_version_running_put(req, key, buf);
823 case BNXT_VERSION_STORED:
824 return devlink_info_version_stored_put(req, key, buf);
825 }
826 return 0;
827}
828
829#define BNXT_FW_SRT_PATCH "fw.srt.patch"
830#define BNXT_FW_CRT_PATCH "fw.crt.patch"
831
832static int bnxt_dl_livepatch_info_put(struct bnxt *bp,
833 struct devlink_info_req *req,
834 const char *key)
835{
836 struct hwrm_fw_livepatch_query_input *query;
837 struct hwrm_fw_livepatch_query_output *resp;
838 u16 flags;
839 int rc;
840
841 if (~bp->fw_cap & BNXT_FW_CAP_LIVEPATCH)
842 return 0;
843
844 rc = hwrm_req_init(bp, query, HWRM_FW_LIVEPATCH_QUERY);
845 if (rc)
846 return rc;
847
848 if (!strcmp(key, BNXT_FW_SRT_PATCH))
849 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_SECURE_FW;
850 else if (!strcmp(key, BNXT_FW_CRT_PATCH))
851 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_COMMON_FW;
852 else
853 goto exit;
854
855 resp = hwrm_req_hold(bp, query);
856 rc = hwrm_req_send(bp, query);
857 if (rc)
858 goto exit;
859
860 flags = le16_to_cpu(resp->status_flags);
861 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE) {
862 resp->active_ver[sizeof(resp->active_ver) - 1] = '\0';
863 rc = devlink_info_version_running_put(req, key, resp->active_ver);
864 if (rc)
865 goto exit;
866 }
867
868 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL) {
869 resp->install_ver[sizeof(resp->install_ver) - 1] = '\0';
870 rc = devlink_info_version_stored_put(req, key, resp->install_ver);
871 if (rc)
872 goto exit;
873 }
874
875exit:
876 hwrm_req_drop(bp, query);
877 return rc;
878}
879
880#define HWRM_FW_VER_STR_LEN 16
881
882static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
883 struct netlink_ext_ack *extack)
884{
885 struct hwrm_nvm_get_dev_info_output nvm_dev_info;
886 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
887 struct hwrm_ver_get_output *ver_resp;
888 char mgmt_ver[FW_VER_STR_LEN];
889 char roce_ver[FW_VER_STR_LEN];
890 char ncsi_ver[FW_VER_STR_LEN];
891 char buf[32];
892 u32 ver = 0;
893 int rc;
894
895 if (BNXT_PF(bp) && (bp->flags & BNXT_FLAG_DSN_VALID)) {
896 sprintf(buf, "%02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X",
897 bp->dsn[7], bp->dsn[6], bp->dsn[5], bp->dsn[4],
898 bp->dsn[3], bp->dsn[2], bp->dsn[1], bp->dsn[0]);
899 rc = devlink_info_serial_number_put(req, buf);
900 if (rc)
901 return rc;
902 }
903
904 if (strlen(bp->board_serialno)) {
905 rc = devlink_info_board_serial_number_put(req, bp->board_serialno);
906 if (rc)
907 return rc;
908 }
909
910 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
911 DEVLINK_INFO_VERSION_GENERIC_BOARD_ID,
912 bp->board_partno);
913 if (rc)
914 return rc;
915
916 sprintf(buf, "%X", bp->chip_num);
917 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
918 DEVLINK_INFO_VERSION_GENERIC_ASIC_ID, buf);
919 if (rc)
920 return rc;
921
922 ver_resp = &bp->ver_resp;
923 sprintf(buf, "%c%d", 'A' + ver_resp->chip_rev, ver_resp->chip_metal);
924 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
925 DEVLINK_INFO_VERSION_GENERIC_ASIC_REV, buf);
926 if (rc)
927 return rc;
928
929 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
930 DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
931 bp->nvm_cfg_ver);
932 if (rc)
933 return rc;
934
935 buf[0] = 0;
936 strncat(buf, ver_resp->active_pkg_name, HWRM_FW_VER_STR_LEN);
937 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
938 DEVLINK_INFO_VERSION_GENERIC_FW, buf);
939 if (rc)
940 return rc;
941
942 if (BNXT_PF(bp) && !bnxt_hwrm_get_nvm_cfg_ver(bp, &ver)) {
943 sprintf(buf, "%d.%d.%d", (ver >> 16) & 0xff, (ver >> 8) & 0xff,
944 ver & 0xff);
945 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
946 DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
947 buf);
948 if (rc)
949 return rc;
950 }
951
952 if (ver_resp->flags & VER_GET_RESP_FLAGS_EXT_VER_AVAIL) {
953 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
954 ver_resp->hwrm_fw_major, ver_resp->hwrm_fw_minor,
955 ver_resp->hwrm_fw_build, ver_resp->hwrm_fw_patch);
956
957 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
958 ver_resp->mgmt_fw_major, ver_resp->mgmt_fw_minor,
959 ver_resp->mgmt_fw_build, ver_resp->mgmt_fw_patch);
960
961 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
962 ver_resp->roce_fw_major, ver_resp->roce_fw_minor,
963 ver_resp->roce_fw_build, ver_resp->roce_fw_patch);
964 } else {
965 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
966 ver_resp->hwrm_fw_maj_8b, ver_resp->hwrm_fw_min_8b,
967 ver_resp->hwrm_fw_bld_8b, ver_resp->hwrm_fw_rsvd_8b);
968
969 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
970 ver_resp->mgmt_fw_maj_8b, ver_resp->mgmt_fw_min_8b,
971 ver_resp->mgmt_fw_bld_8b, ver_resp->mgmt_fw_rsvd_8b);
972
973 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
974 ver_resp->roce_fw_maj_8b, ver_resp->roce_fw_min_8b,
975 ver_resp->roce_fw_bld_8b, ver_resp->roce_fw_rsvd_8b);
976 }
977 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
978 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
979 if (rc)
980 return rc;
981
982 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
983 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API,
984 bp->hwrm_ver_supp);
985 if (rc)
986 return rc;
987
988 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
989 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
990 if (rc)
991 return rc;
992
993 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
994 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
995 if (rc)
996 return rc;
997
998 rc = bnxt_hwrm_nvm_get_dev_info(bp, &nvm_dev_info);
999 if (rc ||
1000 !(nvm_dev_info.flags & NVM_GET_DEV_INFO_RESP_FLAGS_FW_VER_VALID)) {
1001 if (!bnxt_get_pkginfo(bp->dev, buf, sizeof(buf)))
1002 return bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
1003 DEVLINK_INFO_VERSION_GENERIC_FW,
1004 buf);
1005 return 0;
1006 }
1007
1008 buf[0] = 0;
1009 strncat(buf, nvm_dev_info.pkg_name, HWRM_FW_VER_STR_LEN);
1010 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
1011 DEVLINK_INFO_VERSION_GENERIC_FW, buf);
1012 if (rc)
1013 return rc;
1014
1015 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
1016 nvm_dev_info.hwrm_fw_major, nvm_dev_info.hwrm_fw_minor,
1017 nvm_dev_info.hwrm_fw_build, nvm_dev_info.hwrm_fw_patch);
1018 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
1019 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
1020 if (rc)
1021 return rc;
1022
1023 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
1024 nvm_dev_info.mgmt_fw_major, nvm_dev_info.mgmt_fw_minor,
1025 nvm_dev_info.mgmt_fw_build, nvm_dev_info.mgmt_fw_patch);
1026 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
1027 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
1028 if (rc)
1029 return rc;
1030
1031 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
1032 nvm_dev_info.roce_fw_major, nvm_dev_info.roce_fw_minor,
1033 nvm_dev_info.roce_fw_build, nvm_dev_info.roce_fw_patch);
1034 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
1035 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
1036 if (rc)
1037 return rc;
1038
1039 if (BNXT_CHIP_P5(bp)) {
1040 rc = bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_SRT_PATCH);
1041 if (rc)
1042 return rc;
1043 }
1044 return bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_CRT_PATCH);
1045
1046}
1047
1048static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg,
1049 union devlink_param_value *val)
1050{
1051 struct hwrm_nvm_get_variable_input *req = msg;
1052 struct bnxt_dl_nvm_param nvm_param;
1053 struct hwrm_err_output *resp;
1054 union bnxt_nvm_data *data;
1055 dma_addr_t data_dma_addr;
1056 int idx = 0, rc, i;
1057
1058 /* Get/Set NVM CFG parameter is supported only on PFs */
1059 if (BNXT_VF(bp)) {
1060 hwrm_req_drop(bp, req);
1061 return -EPERM;
1062 }
1063
1064 for (i = 0; i < ARRAY_SIZE(nvm_params); i++) {
1065 if (nvm_params[i].id == param_id) {
1066 nvm_param = nvm_params[i];
1067 break;
1068 }
1069 }
1070
1071 if (i == ARRAY_SIZE(nvm_params)) {
1072 hwrm_req_drop(bp, req);
1073 return -EOPNOTSUPP;
1074 }
1075
1076 if (nvm_param.dir_type == BNXT_NVM_PORT_CFG)
1077 idx = bp->pf.port_id;
1078 else if (nvm_param.dir_type == BNXT_NVM_FUNC_CFG)
1079 idx = bp->pf.fw_fid - BNXT_FIRST_PF_FID;
1080
1081 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr);
1082
1083 if (!data) {
1084 hwrm_req_drop(bp, req);
1085 return -ENOMEM;
1086 }
1087
1088 req->dest_data_addr = cpu_to_le64(data_dma_addr);
1089 req->data_len = cpu_to_le16(nvm_param.nvm_num_bits);
1090 req->option_num = cpu_to_le16(nvm_param.offset);
1091 req->index_0 = cpu_to_le16(idx);
1092 if (idx)
1093 req->dimensions = cpu_to_le16(1);
1094
1095 resp = hwrm_req_hold(bp, req);
1096 if (req->req_type == cpu_to_le16(HWRM_NVM_SET_VARIABLE)) {
1097 bnxt_copy_to_nvm_data(data, val, nvm_param.nvm_num_bits,
1098 nvm_param.dl_num_bytes);
1099 rc = hwrm_req_send(bp, msg);
1100 } else {
1101 rc = hwrm_req_send_silent(bp, msg);
1102 if (!rc) {
1103 bnxt_copy_from_nvm_data(val, data,
1104 nvm_param.nvm_num_bits,
1105 nvm_param.dl_num_bytes);
1106 } else {
1107 if (resp->cmd_err ==
1108 NVM_GET_VARIABLE_CMD_ERR_CODE_VAR_NOT_EXIST)
1109 rc = -EOPNOTSUPP;
1110 }
1111 }
1112 hwrm_req_drop(bp, req);
1113 if (rc == -EACCES)
1114 netdev_err(bp->dev, "PF does not have admin privileges to modify NVM config\n");
1115 return rc;
1116}
1117
1118static int bnxt_dl_nvm_param_get(struct devlink *dl, u32 id,
1119 struct devlink_param_gset_ctx *ctx)
1120{
1121 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1122 struct hwrm_nvm_get_variable_input *req;
1123 int rc;
1124
1125 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE);
1126 if (rc)
1127 return rc;
1128
1129 rc = bnxt_hwrm_nvm_req(bp, id, req, &ctx->val);
1130 if (!rc && id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
1131 ctx->val.vbool = !ctx->val.vbool;
1132
1133 return rc;
1134}
1135
1136static int bnxt_dl_nvm_param_set(struct devlink *dl, u32 id,
1137 struct devlink_param_gset_ctx *ctx)
1138{
1139 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1140 struct hwrm_nvm_set_variable_input *req;
1141 int rc;
1142
1143 rc = hwrm_req_init(bp, req, HWRM_NVM_SET_VARIABLE);
1144 if (rc)
1145 return rc;
1146
1147 if (id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
1148 ctx->val.vbool = !ctx->val.vbool;
1149
1150 return bnxt_hwrm_nvm_req(bp, id, req, &ctx->val);
1151}
1152
1153static int bnxt_dl_msix_validate(struct devlink *dl, u32 id,
1154 union devlink_param_value val,
1155 struct netlink_ext_ack *extack)
1156{
1157 int max_val = -1;
1158
1159 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX)
1160 max_val = BNXT_MSIX_VEC_MAX;
1161
1162 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN)
1163 max_val = BNXT_MSIX_VEC_MIN_MAX;
1164
1165 if (val.vu32 > max_val) {
1166 NL_SET_ERR_MSG_MOD(extack, "MSIX value is exceeding the range");
1167 return -EINVAL;
1168 }
1169
1170 return 0;
1171}
1172
1173static int bnxt_remote_dev_reset_get(struct devlink *dl, u32 id,
1174 struct devlink_param_gset_ctx *ctx)
1175{
1176 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1177
1178 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
1179 return -EOPNOTSUPP;
1180
1181 ctx->val.vbool = bnxt_dl_get_remote_reset(dl);
1182 return 0;
1183}
1184
1185static int bnxt_remote_dev_reset_set(struct devlink *dl, u32 id,
1186 struct devlink_param_gset_ctx *ctx)
1187{
1188 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
1189 int rc;
1190
1191 rc = bnxt_hwrm_remote_dev_reset_set(bp, ctx->val.vbool);
1192 if (rc)
1193 return rc;
1194
1195 bnxt_dl_set_remote_reset(dl, ctx->val.vbool);
1196 return rc;
1197}
1198
1199static const struct devlink_param bnxt_dl_params[] = {
1200 DEVLINK_PARAM_GENERIC(ENABLE_SRIOV,
1201 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1202 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1203 NULL),
1204 DEVLINK_PARAM_GENERIC(IGNORE_ARI,
1205 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1206 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1207 NULL),
1208 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MAX,
1209 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1210 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1211 bnxt_dl_msix_validate),
1212 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MIN,
1213 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1214 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1215 bnxt_dl_msix_validate),
1216 DEVLINK_PARAM_DRIVER(BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
1217 "gre_ver_check", DEVLINK_PARAM_TYPE_BOOL,
1218 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
1219 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
1220 NULL),
1221 /* keep REMOTE_DEV_RESET last, it is excluded based on caps */
1222 DEVLINK_PARAM_GENERIC(ENABLE_REMOTE_DEV_RESET,
1223 BIT(DEVLINK_PARAM_CMODE_RUNTIME),
1224 bnxt_remote_dev_reset_get,
1225 bnxt_remote_dev_reset_set, NULL),
1226};
1227
1228static int bnxt_dl_params_register(struct bnxt *bp)
1229{
1230 int num_params = ARRAY_SIZE(bnxt_dl_params);
1231 int rc;
1232
1233 if (bp->hwrm_spec_code < 0x10600)
1234 return 0;
1235
1236 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
1237 num_params--;
1238
1239 rc = devlink_params_register(bp->dl, bnxt_dl_params, num_params);
1240 if (rc)
1241 netdev_warn(bp->dev, "devlink_params_register failed. rc=%d\n",
1242 rc);
1243 return rc;
1244}
1245
1246static void bnxt_dl_params_unregister(struct bnxt *bp)
1247{
1248 int num_params = ARRAY_SIZE(bnxt_dl_params);
1249
1250 if (bp->hwrm_spec_code < 0x10600)
1251 return;
1252
1253 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
1254 num_params--;
1255
1256 devlink_params_unregister(bp->dl, bnxt_dl_params, num_params);
1257}
1258
1259int bnxt_dl_register(struct bnxt *bp)
1260{
1261 const struct devlink_ops *devlink_ops;
1262 struct devlink_port_attrs attrs = {};
1263 struct bnxt_dl *bp_dl;
1264 struct devlink *dl;
1265 int rc;
1266
1267 if (BNXT_PF(bp))
1268 devlink_ops = &bnxt_dl_ops;
1269 else
1270 devlink_ops = &bnxt_vf_dl_ops;
1271
1272 dl = devlink_alloc(devlink_ops, sizeof(struct bnxt_dl), &bp->pdev->dev);
1273 if (!dl) {
1274 netdev_warn(bp->dev, "devlink_alloc failed\n");
1275 return -ENOMEM;
1276 }
1277
1278 bp->dl = dl;
1279 bp_dl = devlink_priv(dl);
1280 bp_dl->bp = bp;
1281 bnxt_dl_set_remote_reset(dl, true);
1282
1283 /* Add switchdev eswitch mode setting, if SRIOV supported */
1284 if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV) &&
1285 bp->hwrm_spec_code > 0x10803)
1286 bp->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY;
1287
1288 if (!BNXT_PF(bp))
1289 goto out;
1290
1291 attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
1292 attrs.phys.port_number = bp->pf.port_id;
1293 memcpy(attrs.switch_id.id, bp->dsn, sizeof(bp->dsn));
1294 attrs.switch_id.id_len = sizeof(bp->dsn);
1295 devlink_port_attrs_set(&bp->dl_port, &attrs);
1296 rc = devlink_port_register(dl, &bp->dl_port, bp->pf.port_id);
1297 if (rc) {
1298 netdev_err(bp->dev, "devlink_port_register failed\n");
1299 goto err_dl_free;
1300 }
1301
1302 rc = bnxt_dl_params_register(bp);
1303 if (rc)
1304 goto err_dl_port_unreg;
1305
1306 devlink_set_features(dl, DEVLINK_F_RELOAD);
1307out:
1308 devlink_register(dl);
1309 return 0;
1310
1311err_dl_port_unreg:
1312 devlink_port_unregister(&bp->dl_port);
1313err_dl_free:
1314 devlink_free(dl);
1315 return rc;
1316}
1317
1318void bnxt_dl_unregister(struct bnxt *bp)
1319{
1320 struct devlink *dl = bp->dl;
1321
1322 devlink_unregister(dl);
1323 if (BNXT_PF(bp)) {
1324 bnxt_dl_params_unregister(bp);
1325 devlink_port_unregister(&bp->dl_port);
1326 }
1327 devlink_free(dl);
1328}