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(devlink: dl, status_msg: "Preparing to flash", NULL, done: 0, total: 0);
49 rc = bnxt_flash_package_from_fw_obj(dev: bp->dev, fw: params->fw, install_type: 0, extack);
50 if (!rc)
51 devlink_flash_update_status_notify(devlink: dl, status_msg: "Flashing done", NULL, done: 0, total: 0);
52 else
53 devlink_flash_update_status_notify(devlink: dl, status_msg: "Flashing failed", NULL, done: 0, total: 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: &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, name: "Status", value: "recovering");
110 return 0;
111 }
112
113 if (!h->status_reliable) {
114 devlink_fmsg_string_pair_put(fmsg, name: "Status", value: "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, name: "Status", value: "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(reporter: h->fw_reporter,
128 msg: "FW error diagnosed", priv_ctx: h);
129 }
130 devlink_fmsg_string_pair_put(fmsg, name: "Status", value: "error");
131 devlink_fmsg_u32_pair_put(fmsg, name: "Syndrome", value: fw_status);
132 } else {
133 devlink_fmsg_string_pair_put(fmsg, name: "Status", value: "healthy");
134 }
135
136 devlink_fmsg_string_pair_put(fmsg, name: "Severity",
137 value: bnxt_health_severity_str(severity: h->severity));
138
139 if (h->severity) {
140 devlink_fmsg_string_pair_put(fmsg, name: "Remedy",
141 value: bnxt_health_remedy_str(remedy: h->remedy));
142 if (h->remedy == REMEDY_DEVLINK_RECOVER)
143 devlink_fmsg_string_pair_put(fmsg, name: "Impact",
144 value: "traffic+ntuple_cfg");
145 }
146
147 mutex_unlock(lock: &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, name: "Resets", value: fw_resets);
153 devlink_fmsg_u32_pair_put(fmsg, name: "Arrests", value: h->arrests);
154 devlink_fmsg_u32_pair_put(fmsg, name: "Survivals", value: h->survivals);
155 devlink_fmsg_u32_pair_put(fmsg, name: "Discoveries", value: h->discoveries);
156 devlink_fmsg_u32_pair_put(fmsg, name: "Fatalities", value: h->fatalities);
157 devlink_fmsg_u32_pair_put(fmsg, name: "Diagnoses", value: 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(size: dump_len);
179 if (!data)
180 return -ENOMEM;
181
182 rc = bnxt_get_coredump(bp, BNXT_DUMP_LIVE, buf: data, dump_len: &dump_len);
183 if (!rc) {
184 devlink_fmsg_pair_nest_start(fmsg, name: "core");
185 devlink_fmsg_binary_pair_put(fmsg, name: "data", value: data, value_len: dump_len);
186 devlink_fmsg_u32_pair_put(fmsg, name: "size", value: dump_len);
187 devlink_fmsg_pair_nest_end(fmsg);
188 }
189
190 vfree(addr: 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, addr: &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(devlink: bp->dl, ops, graceful_period: 0, priv: bp);
223 if (IS_ERR(ptr: reporter)) {
224 netdev_warn(dev: bp->dev, format: "Failed to create %s health reporter, rc = %ld\n",
225 ops->name, PTR_ERR(ptr: 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, ops: &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(reporter: 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(lock: &fw_health->lock);
267 rc = devlink_health_report(reporter: fw_health->fw_reporter, msg: "FW error reported",
268 priv_ctx: 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(lock: &fw_health->lock);
288 devlink_health_reporter_state_update(reporter: 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(devlink: bp->dl);
294
295 devlink_health_reporter_recovery_done(reporter: bp->fw_health->fw_reporter);
296 bnxt_hwrm_remote_dev_reset_set(bp, remote_reset: 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(dev: bp->dev, format: "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(dev: bp->dev, format: "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, req: query_req);
374
375 rc = hwrm_req_init(bp, patch_req, HWRM_FW_LIVEPATCH);
376 if (rc) {
377 hwrm_req_drop(bp, req: query_req);
378 return rc;
379 }
380 patch_req->loadtype = FW_LIVEPATCH_REQ_LOADTYPE_NVM_INSTALL;
381 patch_resp = hwrm_req_hold(bp, req: 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, req: 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, req: patch_req);
409 if (rc) {
410 bnxt_dl_livepatch_report_err(bp, extack, resp: 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, req: query_req);
426 hwrm_req_drop(bp, req: 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(dev: 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(dev: bp->dev))
459 dev_close(dev: bp->dev);
460 rtnl_unlock();
461 break;
462 }
463 bnxt_cancel_reservations(bp, fw_reset: 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(dev: bp->dev))
485 set_bit(BNXT_STATE_FW_ACTIVATE, addr: &bp->state);
486 rc = bnxt_hwrm_firmware_reset(dev: 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, addr: &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(dev: bp->dev))
518 rc = bnxt_open_nic(bp, true, true);
519 bnxt_ulp_start(bp, err: 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(dev: 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(msecs: 50);
550 }
551 rtnl_lock();
552 if (!rc)
553 *actions_performed |= BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT);
554 clear_bit(BNXT_STATE_FW_ACTIVATE, addr: &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(dev: bp->dev)) {
564 mutex_lock(&bp->link_lock);
565 bnxt_report_link(bp);
566 mutex_unlock(lock: &bp->link_lock);
567 }
568 *actions_performed |= BIT(action);
569 } else if (netif_running(dev: bp->dev)) {
570 dev_close(dev: 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(dev: bp->dev, type: BNX_DIR_TYPE_VPD,
584 BNX_DIR_ORDINAL_FIRST, BNX_DIR_EXT_NONE,
585 index: &index, NULL, data_length: &datalen) || !datalen) {
586 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd entry error");
587 return false;
588 }
589
590 buf = kzalloc(size: 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(dev: bp->dev, index, offset: 0, length: datalen, data: buf)) {
597 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd read error");
598 goto done;
599 }
600
601 if (bnxt_flash_nvram(dev: bp->dev, dir_type: BNX_DIR_TYPE_VPD, BNX_DIR_ORDINAL_FIRST,
602 BNX_DIR_EXT_NONE, dir_attr: 0, dir_item_len: 0, data: buf, data_len: 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(objp: 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, size: sizeof(*data), dma: &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(dst: &ver, src: data, nvm_num_bits: bits, dl_num_bytes: 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, version_name: key, version_value: buf);
783 case BNXT_VERSION_RUNNING:
784 return devlink_info_version_running_put(req, version_name: key, version_value: buf);
785 case BNXT_VERSION_STORED:
786 return devlink_info_version_stored_put(req, version_name: key, version_value: 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, req: query);
818 rc = hwrm_req_send(bp, req: 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, version_name: key, version_value: 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, version_name: key, version_value: resp->install_ver);
833 if (rc)
834 goto exit;
835 }
836
837exit:
838 hwrm_req_drop(bp, req: 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, fmt: "%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, sn: buf);
862 if (rc)
863 return rc;
864 }
865
866 if (strlen(bp->board_serialno)) {
867 rc = devlink_info_board_serial_number_put(req, bsn: bp->board_serialno);
868 if (rc)
869 return rc;
870 }
871
872 rc = bnxt_dl_info_put(bp, req, type: BNXT_VERSION_FIXED,
873 DEVLINK_INFO_VERSION_GENERIC_BOARD_ID,
874 buf: bp->board_partno);
875 if (rc)
876 return rc;
877
878 sprintf(buf, fmt: "%X", bp->chip_num);
879 rc = bnxt_dl_info_put(bp, req, type: 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, fmt: "%c%d", 'A' + ver_resp->chip_rev, ver_resp->chip_metal);
886 rc = bnxt_dl_info_put(bp, req, type: 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, type: BNXT_VERSION_RUNNING,
892 DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
893 buf: bp->nvm_cfg_ver);
894 if (rc)
895 return rc;
896
897 buf[0] = 0;
898 strncat(p: buf, q: ver_resp->active_pkg_name, HWRM_FW_VER_STR_LEN);
899 rc = bnxt_dl_info_put(bp, req, type: 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, nvm_cfg_ver: &ver)) {
905 sprintf(buf, fmt: "%d.%d.%d", (ver >> 16) & 0xff, (ver >> 8) & 0xff,
906 ver & 0xff);
907 rc = bnxt_dl_info_put(bp, req, type: 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(buf: mgmt_ver, FW_VER_STR_LEN, fmt: "%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(buf: ncsi_ver, FW_VER_STR_LEN, fmt: "%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(buf: roce_ver, FW_VER_STR_LEN, fmt: "%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(buf: mgmt_ver, FW_VER_STR_LEN, fmt: "%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(buf: ncsi_ver, FW_VER_STR_LEN, fmt: "%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(buf: roce_ver, FW_VER_STR_LEN, fmt: "%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, type: BNXT_VERSION_RUNNING,
940 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, buf: mgmt_ver);
941 if (rc)
942 return rc;
943
944 rc = bnxt_dl_info_put(bp, req, type: BNXT_VERSION_RUNNING,
945 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API,
946 buf: bp->hwrm_ver_supp);
947 if (rc)
948 return rc;
949
950 rc = bnxt_dl_info_put(bp, req, type: BNXT_VERSION_RUNNING,
951 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, buf: ncsi_ver);
952 if (rc)
953 return rc;
954
955 rc = bnxt_dl_info_put(bp, req, type: BNXT_VERSION_RUNNING,
956 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, buf: roce_ver);
957 if (rc)
958 return rc;
959
960 rc = bnxt_hwrm_nvm_get_dev_info(bp, nvm_dev_info: &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(dev: bp->dev, ver: buf, size: sizeof(buf)))
964 return bnxt_dl_info_put(bp, req, type: BNXT_VERSION_STORED,
965 DEVLINK_INFO_VERSION_GENERIC_FW,
966 buf);
967 return 0;
968 }
969
970 buf[0] = 0;
971 strncat(p: buf, q: nvm_dev_info.pkg_name, HWRM_FW_VER_STR_LEN);
972 rc = bnxt_dl_info_put(bp, req, type: BNXT_VERSION_STORED,
973 DEVLINK_INFO_VERSION_GENERIC_FW, buf);
974 if (rc)
975 return rc;
976
977 snprintf(buf: mgmt_ver, FW_VER_STR_LEN, fmt: "%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, type: BNXT_VERSION_STORED,
981 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, buf: mgmt_ver);
982 if (rc)
983 return rc;
984
985 snprintf(buf: ncsi_ver, FW_VER_STR_LEN, fmt: "%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, type: BNXT_VERSION_STORED,
989 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, buf: ncsi_ver);
990 if (rc)
991 return rc;
992
993 snprintf(buf: roce_ver, FW_VER_STR_LEN, fmt: "%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, type: BNXT_VERSION_STORED,
997 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, buf: 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, size: sizeof(*data), dma: &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(dst: data, src: val, nvm_num_bits: nvm_param.nvm_num_bits,
1060 dl_num_bytes: nvm_param.dl_num_bytes);
1061 rc = hwrm_req_send(bp, req: msg);
1062 } else {
1063 rc = hwrm_req_send_silent(bp, req: msg);
1064 if (!rc) {
1065 bnxt_copy_from_nvm_data(dst: val, src: data,
1066 nvm_num_bits: nvm_param.nvm_num_bits,
1067 dl_num_bytes: 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(dev: bp->dev, format: "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, param_id: id, msg: req, val: &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, param_id: id, msg: req, val: &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, remote_reset: ctx->val.vbool);
1154 if (rc)
1155 return rc;
1156
1157 bnxt_dl_set_remote_reset(dl, value: 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(devlink: bp->dl, params: bnxt_dl_params, params_count: num_params);
1202 if (rc)
1203 netdev_warn(dev: bp->dev, format: "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(devlink: bp->dl, params: bnxt_dl_params, params_count: 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(ops: devlink_ops, priv_size: sizeof(struct bnxt_dl), dev: &bp->pdev->dev);
1235 if (!dl) {
1236 netdev_warn(dev: bp->dev, format: "devlink_alloc failed\n");
1237 return -ENOMEM;
1238 }
1239
1240 bp->dl = dl;
1241 bp_dl = devlink_priv(devlink: dl);
1242 bp_dl->bp = bp;
1243 bnxt_dl_set_remote_reset(dl, value: true);
1244
1245 /* Add switchdev eswitch mode setting, if SRIOV supported */
1246 if (pci_find_ext_capability(dev: 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(devlink_port: &bp->dl_port, devlink_port_attrs: &attrs);
1258 rc = devlink_port_register(devlink: dl, devlink_port: &bp->dl_port, port_index: bp->pf.port_id);
1259 if (rc) {
1260 netdev_err(dev: bp->dev, format: "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(devlink: dl);
1270 return 0;
1271
1272err_dl_port_unreg:
1273 devlink_port_unregister(devlink_port: &bp->dl_port);
1274err_dl_free:
1275 devlink_free(devlink: dl);
1276 return rc;
1277}
1278
1279void bnxt_dl_unregister(struct bnxt *bp)
1280{
1281 struct devlink *dl = bp->dl;
1282
1283 devlink_unregister(devlink: dl);
1284 if (BNXT_PF(bp)) {
1285 bnxt_dl_params_unregister(bp);
1286 devlink_port_unregister(devlink_port: &bp->dl_port);
1287 }
1288 devlink_free(devlink: dl);
1289}
1290

source code of linux/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c