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10#include <linux/pci.h>
11#include <linux/netdevice.h>
12#include <net/devlink.h>
13#include "bnxt_hsi.h"
14#include "bnxt.h"
15#include "bnxt_vfr.h"
16#include "bnxt_devlink.h"
17#include "bnxt_ethtool.h"
18
19static int
20bnxt_dl_flash_update(struct devlink *dl,
21 struct devlink_flash_update_params *params,
22 struct netlink_ext_ack *extack)
23{
24 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
25 int rc;
26
27 if (!BNXT_PF(bp)) {
28 NL_SET_ERR_MSG_MOD(extack,
29 "flash update not supported from a VF");
30 return -EPERM;
31 }
32
33 devlink_flash_update_status_notify(dl, "Preparing to flash", NULL, 0, 0);
34 rc = bnxt_flash_package_from_fw_obj(bp->dev, params->fw, 0);
35 if (!rc)
36 devlink_flash_update_status_notify(dl, "Flashing done", NULL, 0, 0);
37 else
38 devlink_flash_update_status_notify(dl, "Flashing failed", NULL, 0, 0);
39 return rc;
40}
41
42static int bnxt_fw_reporter_diagnose(struct devlink_health_reporter *reporter,
43 struct devlink_fmsg *fmsg,
44 struct netlink_ext_ack *extack)
45{
46 struct bnxt *bp = devlink_health_reporter_priv(reporter);
47 u32 val;
48 int rc;
49
50 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
51 return 0;
52
53 val = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG);
54
55 if (BNXT_FW_IS_BOOTING(val)) {
56 rc = devlink_fmsg_string_pair_put(fmsg, "Description",
57 "Not yet completed initialization");
58 if (rc)
59 return rc;
60 } else if (BNXT_FW_IS_ERR(val)) {
61 rc = devlink_fmsg_string_pair_put(fmsg, "Description",
62 "Encountered fatal error and cannot recover");
63 if (rc)
64 return rc;
65 }
66
67 if (val >> 16) {
68 rc = devlink_fmsg_u32_pair_put(fmsg, "Error code", val >> 16);
69 if (rc)
70 return rc;
71 }
72
73 val = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
74 rc = devlink_fmsg_u32_pair_put(fmsg, "Reset count", val);
75 if (rc)
76 return rc;
77
78 return 0;
79}
80
81static const struct devlink_health_reporter_ops bnxt_dl_fw_reporter_ops = {
82 .name = "fw",
83 .diagnose = bnxt_fw_reporter_diagnose,
84};
85
86static int bnxt_fw_reset_recover(struct devlink_health_reporter *reporter,
87 void *priv_ctx,
88 struct netlink_ext_ack *extack)
89{
90 struct bnxt *bp = devlink_health_reporter_priv(reporter);
91
92 if (!priv_ctx)
93 return -EOPNOTSUPP;
94
95 bnxt_fw_reset(bp);
96 return -EINPROGRESS;
97}
98
99static const
100struct devlink_health_reporter_ops bnxt_dl_fw_reset_reporter_ops = {
101 .name = "fw_reset",
102 .recover = bnxt_fw_reset_recover,
103};
104
105static int bnxt_fw_fatal_recover(struct devlink_health_reporter *reporter,
106 void *priv_ctx,
107 struct netlink_ext_ack *extack)
108{
109 struct bnxt *bp = devlink_health_reporter_priv(reporter);
110 struct bnxt_fw_reporter_ctx *fw_reporter_ctx = priv_ctx;
111 unsigned long event;
112
113 if (!priv_ctx)
114 return -EOPNOTSUPP;
115
116 bp->fw_health->fatal = true;
117 event = fw_reporter_ctx->sp_event;
118 if (event == BNXT_FW_RESET_NOTIFY_SP_EVENT)
119 bnxt_fw_reset(bp);
120 else if (event == BNXT_FW_EXCEPTION_SP_EVENT)
121 bnxt_fw_exception(bp);
122
123 return -EINPROGRESS;
124}
125
126static const
127struct devlink_health_reporter_ops bnxt_dl_fw_fatal_reporter_ops = {
128 .name = "fw_fatal",
129 .recover = bnxt_fw_fatal_recover,
130};
131
132void bnxt_dl_fw_reporters_create(struct bnxt *bp)
133{
134 struct bnxt_fw_health *health = bp->fw_health;
135
136 if (!bp->dl || !health)
137 return;
138
139 if (!(bp->fw_cap & BNXT_FW_CAP_HOT_RESET) || health->fw_reset_reporter)
140 goto err_recovery;
141
142 health->fw_reset_reporter =
143 devlink_health_reporter_create(bp->dl,
144 &bnxt_dl_fw_reset_reporter_ops,
145 0, bp);
146 if (IS_ERR(health->fw_reset_reporter)) {
147 netdev_warn(bp->dev, "Failed to create FW fatal health reporter, rc = %ld\n",
148 PTR_ERR(health->fw_reset_reporter));
149 health->fw_reset_reporter = NULL;
150 bp->fw_cap &= ~BNXT_FW_CAP_HOT_RESET;
151 }
152
153err_recovery:
154 if (!(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY))
155 return;
156
157 if (!health->fw_reporter) {
158 health->fw_reporter =
159 devlink_health_reporter_create(bp->dl,
160 &bnxt_dl_fw_reporter_ops,
161 0, bp);
162 if (IS_ERR(health->fw_reporter)) {
163 netdev_warn(bp->dev, "Failed to create FW health reporter, rc = %ld\n",
164 PTR_ERR(health->fw_reporter));
165 health->fw_reporter = NULL;
166 bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY;
167 return;
168 }
169 }
170
171 if (health->fw_fatal_reporter)
172 return;
173
174 health->fw_fatal_reporter =
175 devlink_health_reporter_create(bp->dl,
176 &bnxt_dl_fw_fatal_reporter_ops,
177 0, bp);
178 if (IS_ERR(health->fw_fatal_reporter)) {
179 netdev_warn(bp->dev, "Failed to create FW fatal health reporter, rc = %ld\n",
180 PTR_ERR(health->fw_fatal_reporter));
181 health->fw_fatal_reporter = NULL;
182 bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY;
183 }
184}
185
186void bnxt_dl_fw_reporters_destroy(struct bnxt *bp, bool all)
187{
188 struct bnxt_fw_health *health = bp->fw_health;
189
190 if (!bp->dl || !health)
191 return;
192
193 if ((all || !(bp->fw_cap & BNXT_FW_CAP_HOT_RESET)) &&
194 health->fw_reset_reporter) {
195 devlink_health_reporter_destroy(health->fw_reset_reporter);
196 health->fw_reset_reporter = NULL;
197 }
198
199 if ((bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) && !all)
200 return;
201
202 if (health->fw_reporter) {
203 devlink_health_reporter_destroy(health->fw_reporter);
204 health->fw_reporter = NULL;
205 }
206
207 if (health->fw_fatal_reporter) {
208 devlink_health_reporter_destroy(health->fw_fatal_reporter);
209 health->fw_fatal_reporter = NULL;
210 }
211}
212
213void bnxt_devlink_health_report(struct bnxt *bp, unsigned long event)
214{
215 struct bnxt_fw_health *fw_health = bp->fw_health;
216 struct bnxt_fw_reporter_ctx fw_reporter_ctx;
217
218 fw_reporter_ctx.sp_event = event;
219 switch (event) {
220 case BNXT_FW_RESET_NOTIFY_SP_EVENT:
221 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) {
222 if (!fw_health->fw_fatal_reporter)
223 return;
224
225 devlink_health_report(fw_health->fw_fatal_reporter,
226 "FW fatal async event received",
227 &fw_reporter_ctx);
228 return;
229 }
230 if (!fw_health->fw_reset_reporter)
231 return;
232
233 devlink_health_report(fw_health->fw_reset_reporter,
234 "FW non-fatal reset event received",
235 &fw_reporter_ctx);
236 return;
237
238 case BNXT_FW_EXCEPTION_SP_EVENT:
239 if (!fw_health->fw_fatal_reporter)
240 return;
241
242 devlink_health_report(fw_health->fw_fatal_reporter,
243 "FW fatal error reported",
244 &fw_reporter_ctx);
245 return;
246 }
247}
248
249void bnxt_dl_health_status_update(struct bnxt *bp, bool healthy)
250{
251 struct bnxt_fw_health *health = bp->fw_health;
252 u8 state;
253
254 if (healthy)
255 state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY;
256 else
257 state = DEVLINK_HEALTH_REPORTER_STATE_ERROR;
258
259 if (health->fatal)
260 devlink_health_reporter_state_update(health->fw_fatal_reporter,
261 state);
262 else
263 devlink_health_reporter_state_update(health->fw_reset_reporter,
264 state);
265
266 health->fatal = false;
267}
268
269void bnxt_dl_health_recovery_done(struct bnxt *bp)
270{
271 struct bnxt_fw_health *hlth = bp->fw_health;
272
273 if (hlth->fatal)
274 devlink_health_reporter_recovery_done(hlth->fw_fatal_reporter);
275 else
276 devlink_health_reporter_recovery_done(hlth->fw_reset_reporter);
277}
278
279static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
280 struct netlink_ext_ack *extack);
281
282static const struct devlink_ops bnxt_dl_ops = {
283#ifdef CONFIG_BNXT_SRIOV
284 .eswitch_mode_set = bnxt_dl_eswitch_mode_set,
285 .eswitch_mode_get = bnxt_dl_eswitch_mode_get,
286#endif
287 .info_get = bnxt_dl_info_get,
288 .flash_update = bnxt_dl_flash_update,
289};
290
291static const struct devlink_ops bnxt_vf_dl_ops;
292
293enum bnxt_dl_param_id {
294 BNXT_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
295 BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
296};
297
298static const struct bnxt_dl_nvm_param nvm_params[] = {
299 {DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, NVM_OFF_ENABLE_SRIOV,
300 BNXT_NVM_SHARED_CFG, 1, 1},
301 {DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, NVM_OFF_IGNORE_ARI,
302 BNXT_NVM_SHARED_CFG, 1, 1},
303 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
304 NVM_OFF_MSIX_VEC_PER_PF_MAX, BNXT_NVM_SHARED_CFG, 10, 4},
305 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
306 NVM_OFF_MSIX_VEC_PER_PF_MIN, BNXT_NVM_SHARED_CFG, 7, 4},
307 {BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, NVM_OFF_DIS_GRE_VER_CHECK,
308 BNXT_NVM_SHARED_CFG, 1, 1},
309};
310
311union bnxt_nvm_data {
312 u8 val8;
313 __le32 val32;
314};
315
316static void bnxt_copy_to_nvm_data(union bnxt_nvm_data *dst,
317 union devlink_param_value *src,
318 int nvm_num_bits, int dl_num_bytes)
319{
320 u32 val32 = 0;
321
322 if (nvm_num_bits == 1) {
323 dst->val8 = src->vbool;
324 return;
325 }
326 if (dl_num_bytes == 4)
327 val32 = src->vu32;
328 else if (dl_num_bytes == 2)
329 val32 = (u32)src->vu16;
330 else if (dl_num_bytes == 1)
331 val32 = (u32)src->vu8;
332 dst->val32 = cpu_to_le32(val32);
333}
334
335static void bnxt_copy_from_nvm_data(union devlink_param_value *dst,
336 union bnxt_nvm_data *src,
337 int nvm_num_bits, int dl_num_bytes)
338{
339 u32 val32;
340
341 if (nvm_num_bits == 1) {
342 dst->vbool = src->val8;
343 return;
344 }
345 val32 = le32_to_cpu(src->val32);
346 if (dl_num_bytes == 4)
347 dst->vu32 = val32;
348 else if (dl_num_bytes == 2)
349 dst->vu16 = (u16)val32;
350 else if (dl_num_bytes == 1)
351 dst->vu8 = (u8)val32;
352}
353
354static int bnxt_hwrm_get_nvm_cfg_ver(struct bnxt *bp,
355 union devlink_param_value *nvm_cfg_ver)
356{
357 struct hwrm_nvm_get_variable_input req = {0};
358 union bnxt_nvm_data *data;
359 dma_addr_t data_dma_addr;
360 int rc;
361
362 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_GET_VARIABLE, -1, -1);
363 data = dma_alloc_coherent(&bp->pdev->dev, sizeof(*data),
364 &data_dma_addr, GFP_KERNEL);
365 if (!data)
366 return -ENOMEM;
367
368 req.dest_data_addr = cpu_to_le64(data_dma_addr);
369 req.data_len = cpu_to_le16(BNXT_NVM_CFG_VER_BITS);
370 req.option_num = cpu_to_le16(NVM_OFF_NVM_CFG_VER);
371
372 rc = hwrm_send_message_silent(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
373 if (!rc)
374 bnxt_copy_from_nvm_data(nvm_cfg_ver, data,
375 BNXT_NVM_CFG_VER_BITS,
376 BNXT_NVM_CFG_VER_BYTES);
377
378 dma_free_coherent(&bp->pdev->dev, sizeof(*data), data, data_dma_addr);
379 return rc;
380}
381
382static int bnxt_dl_info_put(struct bnxt *bp, struct devlink_info_req *req,
383 enum bnxt_dl_version_type type, const char *key,
384 char *buf)
385{
386 if (!strlen(buf))
387 return 0;
388
389 if ((bp->flags & BNXT_FLAG_CHIP_P5) &&
390 (!strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_NCSI) ||
391 !strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_ROCE)))
392 return 0;
393
394 switch (type) {
395 case BNXT_VERSION_FIXED:
396 return devlink_info_version_fixed_put(req, key, buf);
397 case BNXT_VERSION_RUNNING:
398 return devlink_info_version_running_put(req, key, buf);
399 case BNXT_VERSION_STORED:
400 return devlink_info_version_stored_put(req, key, buf);
401 }
402 return 0;
403}
404
405#define HWRM_FW_VER_STR_LEN 16
406
407static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
408 struct netlink_ext_ack *extack)
409{
410 struct hwrm_nvm_get_dev_info_output nvm_dev_info;
411 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
412 union devlink_param_value nvm_cfg_ver;
413 struct hwrm_ver_get_output *ver_resp;
414 char mgmt_ver[FW_VER_STR_LEN];
415 char roce_ver[FW_VER_STR_LEN];
416 char ncsi_ver[FW_VER_STR_LEN];
417 char buf[32];
418 int rc;
419
420 rc = devlink_info_driver_name_put(req, DRV_MODULE_NAME);
421 if (rc)
422 return rc;
423
424 if (BNXT_PF(bp) && (bp->flags & BNXT_FLAG_DSN_VALID)) {
425 sprintf(buf, "%02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X",
426 bp->dsn[7], bp->dsn[6], bp->dsn[5], bp->dsn[4],
427 bp->dsn[3], bp->dsn[2], bp->dsn[1], bp->dsn[0]);
428 rc = devlink_info_serial_number_put(req, buf);
429 if (rc)
430 return rc;
431 }
432
433 if (strlen(bp->board_serialno)) {
434 rc = devlink_info_board_serial_number_put(req, bp->board_serialno);
435 if (rc)
436 return rc;
437 }
438
439 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
440 DEVLINK_INFO_VERSION_GENERIC_BOARD_ID,
441 bp->board_partno);
442 if (rc)
443 return rc;
444
445 sprintf(buf, "%X", bp->chip_num);
446 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
447 DEVLINK_INFO_VERSION_GENERIC_ASIC_ID, buf);
448 if (rc)
449 return rc;
450
451 ver_resp = &bp->ver_resp;
452 sprintf(buf, "%X", ver_resp->chip_rev);
453 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
454 DEVLINK_INFO_VERSION_GENERIC_ASIC_REV, buf);
455 if (rc)
456 return rc;
457
458 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
459 DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
460 bp->nvm_cfg_ver);
461 if (rc)
462 return rc;
463
464 buf[0] = 0;
465 strncat(buf, ver_resp->active_pkg_name, HWRM_FW_VER_STR_LEN);
466 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
467 DEVLINK_INFO_VERSION_GENERIC_FW, buf);
468 if (rc)
469 return rc;
470
471 if (BNXT_PF(bp) && !bnxt_hwrm_get_nvm_cfg_ver(bp, &nvm_cfg_ver)) {
472 u32 ver = nvm_cfg_ver.vu32;
473
474 sprintf(buf, "%d.%d.%d", (ver >> 16) & 0xf, (ver >> 8) & 0xf,
475 ver & 0xf);
476 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
477 DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
478 buf);
479 if (rc)
480 return rc;
481 }
482
483 if (ver_resp->flags & VER_GET_RESP_FLAGS_EXT_VER_AVAIL) {
484 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
485 ver_resp->hwrm_fw_major, ver_resp->hwrm_fw_minor,
486 ver_resp->hwrm_fw_build, ver_resp->hwrm_fw_patch);
487
488 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
489 ver_resp->mgmt_fw_major, ver_resp->mgmt_fw_minor,
490 ver_resp->mgmt_fw_build, ver_resp->mgmt_fw_patch);
491
492 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
493 ver_resp->roce_fw_major, ver_resp->roce_fw_minor,
494 ver_resp->roce_fw_build, ver_resp->roce_fw_patch);
495 } else {
496 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
497 ver_resp->hwrm_fw_maj_8b, ver_resp->hwrm_fw_min_8b,
498 ver_resp->hwrm_fw_bld_8b, ver_resp->hwrm_fw_rsvd_8b);
499
500 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
501 ver_resp->mgmt_fw_maj_8b, ver_resp->mgmt_fw_min_8b,
502 ver_resp->mgmt_fw_bld_8b, ver_resp->mgmt_fw_rsvd_8b);
503
504 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
505 ver_resp->roce_fw_maj_8b, ver_resp->roce_fw_min_8b,
506 ver_resp->roce_fw_bld_8b, ver_resp->roce_fw_rsvd_8b);
507 }
508 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
509 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
510 if (rc)
511 return rc;
512
513 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
514 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API,
515 bp->hwrm_ver_supp);
516 if (rc)
517 return rc;
518
519 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
520 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
521 if (rc)
522 return rc;
523
524 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
525 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
526 if (rc)
527 return rc;
528
529 rc = bnxt_hwrm_nvm_get_dev_info(bp, &nvm_dev_info);
530 if (rc ||
531 !(nvm_dev_info.flags & NVM_GET_DEV_INFO_RESP_FLAGS_FW_VER_VALID))
532 return 0;
533
534 buf[0] = 0;
535 strncat(buf, nvm_dev_info.pkg_name, HWRM_FW_VER_STR_LEN);
536 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
537 DEVLINK_INFO_VERSION_GENERIC_FW, buf);
538 if (rc)
539 return rc;
540
541 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
542 nvm_dev_info.hwrm_fw_major, nvm_dev_info.hwrm_fw_minor,
543 nvm_dev_info.hwrm_fw_build, nvm_dev_info.hwrm_fw_patch);
544 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
545 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
546 if (rc)
547 return rc;
548
549 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
550 nvm_dev_info.mgmt_fw_major, nvm_dev_info.mgmt_fw_minor,
551 nvm_dev_info.mgmt_fw_build, nvm_dev_info.mgmt_fw_patch);
552 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
553 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
554 if (rc)
555 return rc;
556
557 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
558 nvm_dev_info.roce_fw_major, nvm_dev_info.roce_fw_minor,
559 nvm_dev_info.roce_fw_build, nvm_dev_info.roce_fw_patch);
560 return bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
561 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
562}
563
564static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg,
565 int msg_len, union devlink_param_value *val)
566{
567 struct hwrm_nvm_get_variable_input *req = msg;
568 struct bnxt_dl_nvm_param nvm_param;
569 union bnxt_nvm_data *data;
570 dma_addr_t data_dma_addr;
571 int idx = 0, rc, i;
572
573
574 if (BNXT_VF(bp))
575 return -EPERM;
576
577 for (i = 0; i < ARRAY_SIZE(nvm_params); i++) {
578 if (nvm_params[i].id == param_id) {
579 nvm_param = nvm_params[i];
580 break;
581 }
582 }
583
584 if (i == ARRAY_SIZE(nvm_params))
585 return -EOPNOTSUPP;
586
587 if (nvm_param.dir_type == BNXT_NVM_PORT_CFG)
588 idx = bp->pf.port_id;
589 else if (nvm_param.dir_type == BNXT_NVM_FUNC_CFG)
590 idx = bp->pf.fw_fid - BNXT_FIRST_PF_FID;
591
592 data = dma_alloc_coherent(&bp->pdev->dev, sizeof(*data),
593 &data_dma_addr, GFP_KERNEL);
594 if (!data)
595 return -ENOMEM;
596
597 req->dest_data_addr = cpu_to_le64(data_dma_addr);
598 req->data_len = cpu_to_le16(nvm_param.nvm_num_bits);
599 req->option_num = cpu_to_le16(nvm_param.offset);
600 req->index_0 = cpu_to_le16(idx);
601 if (idx)
602 req->dimensions = cpu_to_le16(1);
603
604 if (req->req_type == cpu_to_le16(HWRM_NVM_SET_VARIABLE)) {
605 bnxt_copy_to_nvm_data(data, val, nvm_param.nvm_num_bits,
606 nvm_param.dl_num_bytes);
607 rc = hwrm_send_message(bp, msg, msg_len, HWRM_CMD_TIMEOUT);
608 } else {
609 rc = hwrm_send_message_silent(bp, msg, msg_len,
610 HWRM_CMD_TIMEOUT);
611 if (!rc) {
612 bnxt_copy_from_nvm_data(val, data,
613 nvm_param.nvm_num_bits,
614 nvm_param.dl_num_bytes);
615 } else {
616 struct hwrm_err_output *resp = bp->hwrm_cmd_resp_addr;
617
618 if (resp->cmd_err ==
619 NVM_GET_VARIABLE_CMD_ERR_CODE_VAR_NOT_EXIST)
620 rc = -EOPNOTSUPP;
621 }
622 }
623 dma_free_coherent(&bp->pdev->dev, sizeof(*data), data, data_dma_addr);
624 if (rc == -EACCES)
625 netdev_err(bp->dev, "PF does not have admin privileges to modify NVM config\n");
626 return rc;
627}
628
629static int bnxt_dl_nvm_param_get(struct devlink *dl, u32 id,
630 struct devlink_param_gset_ctx *ctx)
631{
632 struct hwrm_nvm_get_variable_input req = {0};
633 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
634 int rc;
635
636 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_GET_VARIABLE, -1, -1);
637 rc = bnxt_hwrm_nvm_req(bp, id, &req, sizeof(req), &ctx->val);
638 if (!rc)
639 if (id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
640 ctx->val.vbool = !ctx->val.vbool;
641
642 return rc;
643}
644
645static int bnxt_dl_nvm_param_set(struct devlink *dl, u32 id,
646 struct devlink_param_gset_ctx *ctx)
647{
648 struct hwrm_nvm_set_variable_input req = {0};
649 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
650
651 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_SET_VARIABLE, -1, -1);
652
653 if (id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
654 ctx->val.vbool = !ctx->val.vbool;
655
656 return bnxt_hwrm_nvm_req(bp, id, &req, sizeof(req), &ctx->val);
657}
658
659static int bnxt_dl_msix_validate(struct devlink *dl, u32 id,
660 union devlink_param_value val,
661 struct netlink_ext_ack *extack)
662{
663 int max_val = -1;
664
665 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX)
666 max_val = BNXT_MSIX_VEC_MAX;
667
668 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN)
669 max_val = BNXT_MSIX_VEC_MIN_MAX;
670
671 if (val.vu32 > max_val) {
672 NL_SET_ERR_MSG_MOD(extack, "MSIX value is exceeding the range");
673 return -EINVAL;
674 }
675
676 return 0;
677}
678
679static const struct devlink_param bnxt_dl_params[] = {
680 DEVLINK_PARAM_GENERIC(ENABLE_SRIOV,
681 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
682 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
683 NULL),
684 DEVLINK_PARAM_GENERIC(IGNORE_ARI,
685 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
686 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
687 NULL),
688 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MAX,
689 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
690 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
691 bnxt_dl_msix_validate),
692 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MIN,
693 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
694 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
695 bnxt_dl_msix_validate),
696 DEVLINK_PARAM_DRIVER(BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
697 "gre_ver_check", DEVLINK_PARAM_TYPE_BOOL,
698 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
699 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
700 NULL),
701};
702
703static const struct devlink_param bnxt_dl_port_params[] = {
704};
705
706static int bnxt_dl_params_register(struct bnxt *bp)
707{
708 int rc;
709
710 if (bp->hwrm_spec_code < 0x10600)
711 return 0;
712
713 rc = devlink_params_register(bp->dl, bnxt_dl_params,
714 ARRAY_SIZE(bnxt_dl_params));
715 if (rc) {
716 netdev_warn(bp->dev, "devlink_params_register failed. rc=%d\n",
717 rc);
718 return rc;
719 }
720 rc = devlink_port_params_register(&bp->dl_port, bnxt_dl_port_params,
721 ARRAY_SIZE(bnxt_dl_port_params));
722 if (rc) {
723 netdev_err(bp->dev, "devlink_port_params_register failed\n");
724 devlink_params_unregister(bp->dl, bnxt_dl_params,
725 ARRAY_SIZE(bnxt_dl_params));
726 return rc;
727 }
728 devlink_params_publish(bp->dl);
729
730 return 0;
731}
732
733static void bnxt_dl_params_unregister(struct bnxt *bp)
734{
735 if (bp->hwrm_spec_code < 0x10600)
736 return;
737
738 devlink_params_unregister(bp->dl, bnxt_dl_params,
739 ARRAY_SIZE(bnxt_dl_params));
740 devlink_port_params_unregister(&bp->dl_port, bnxt_dl_port_params,
741 ARRAY_SIZE(bnxt_dl_port_params));
742}
743
744int bnxt_dl_register(struct bnxt *bp)
745{
746 struct devlink_port_attrs attrs = {};
747 struct devlink *dl;
748 int rc;
749
750 if (BNXT_PF(bp))
751 dl = devlink_alloc(&bnxt_dl_ops, sizeof(struct bnxt_dl));
752 else
753 dl = devlink_alloc(&bnxt_vf_dl_ops, sizeof(struct bnxt_dl));
754 if (!dl) {
755 netdev_warn(bp->dev, "devlink_alloc failed\n");
756 return -ENOMEM;
757 }
758
759 bnxt_link_bp_to_dl(bp, dl);
760
761
762 if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV) &&
763 bp->hwrm_spec_code > 0x10803)
764 bp->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY;
765
766 rc = devlink_register(dl, &bp->pdev->dev);
767 if (rc) {
768 netdev_warn(bp->dev, "devlink_register failed. rc=%d\n", rc);
769 goto err_dl_free;
770 }
771
772 if (!BNXT_PF(bp))
773 return 0;
774
775 attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
776 attrs.phys.port_number = bp->pf.port_id;
777 memcpy(attrs.switch_id.id, bp->dsn, sizeof(bp->dsn));
778 attrs.switch_id.id_len = sizeof(bp->dsn);
779 devlink_port_attrs_set(&bp->dl_port, &attrs);
780 rc = devlink_port_register(dl, &bp->dl_port, bp->pf.port_id);
781 if (rc) {
782 netdev_err(bp->dev, "devlink_port_register failed\n");
783 goto err_dl_unreg;
784 }
785
786 rc = bnxt_dl_params_register(bp);
787 if (rc)
788 goto err_dl_port_unreg;
789
790 return 0;
791
792err_dl_port_unreg:
793 devlink_port_unregister(&bp->dl_port);
794err_dl_unreg:
795 devlink_unregister(dl);
796err_dl_free:
797 bnxt_link_bp_to_dl(bp, NULL);
798 devlink_free(dl);
799 return rc;
800}
801
802void bnxt_dl_unregister(struct bnxt *bp)
803{
804 struct devlink *dl = bp->dl;
805
806 if (!dl)
807 return;
808
809 if (BNXT_PF(bp)) {
810 bnxt_dl_params_unregister(bp);
811 devlink_port_unregister(&bp->dl_port);
812 }
813 devlink_unregister(dl);
814 devlink_free(dl);
815}
816
