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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_hwrm.h"
16#include "bnxt_vfr.h"
17#include "bnxt_devlink.h"
18#include "bnxt_ethtool.h"
19
20static int
21bnxt_dl_flash_update(struct devlink *dl,
22 struct devlink_flash_update_params *params,
23 struct netlink_ext_ack *extack)
24{
25 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
26 int rc;
27
28 if (!BNXT_PF(bp)) {
29 NL_SET_ERR_MSG_MOD(extack,
30 "flash update not supported from a VF");
31 return -EPERM;
32 }
33
34 devlink_flash_update_status_notify(dl, "Preparing to flash", NULL, 0, 0);
35 rc = bnxt_flash_package_from_fw_obj(bp->dev, params->fw, 0);
36 if (!rc)
37 devlink_flash_update_status_notify(dl, "Flashing done", NULL, 0, 0);
38 else
39 devlink_flash_update_status_notify(dl, "Flashing failed", NULL, 0, 0);
40 return rc;
41}
42
43static int bnxt_fw_reporter_diagnose(struct devlink_health_reporter *reporter,
44 struct devlink_fmsg *fmsg,
45 struct netlink_ext_ack *extack)
46{
47 struct bnxt *bp = devlink_health_reporter_priv(reporter);
48 u32 val;
49 int rc;
50
51 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
52 return 0;
53
54 val = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG);
55
56 if (BNXT_FW_IS_BOOTING(val)) {
57 rc = devlink_fmsg_string_pair_put(fmsg, "Description",
58 "Not yet completed initialization");
59 if (rc)
60 return rc;
61 } else if (BNXT_FW_IS_ERR(val)) {
62 rc = devlink_fmsg_string_pair_put(fmsg, "Description",
63 "Encountered fatal error and cannot recover");
64 if (rc)
65 return rc;
66 }
67
68 if (val >> 16) {
69 rc = devlink_fmsg_u32_pair_put(fmsg, "Error code", val >> 16);
70 if (rc)
71 return rc;
72 }
73
74 val = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
75 rc = devlink_fmsg_u32_pair_put(fmsg, "Reset count", val);
76 if (rc)
77 return rc;
78
79 return 0;
80}
81
82static const struct devlink_health_reporter_ops bnxt_dl_fw_reporter_ops = {
83 .name = "fw",
84 .diagnose = bnxt_fw_reporter_diagnose,
85};
86
87static int bnxt_fw_reset_recover(struct devlink_health_reporter *reporter,
88 void *priv_ctx,
89 struct netlink_ext_ack *extack)
90{
91 struct bnxt *bp = devlink_health_reporter_priv(reporter);
92
93 if (!priv_ctx)
94 return -EOPNOTSUPP;
95
96 bnxt_fw_reset(bp);
97 return -EINPROGRESS;
98}
99
100static const
101struct devlink_health_reporter_ops bnxt_dl_fw_reset_reporter_ops = {
102 .name = "fw_reset",
103 .recover = bnxt_fw_reset_recover,
104};
105
106static int bnxt_fw_fatal_recover(struct devlink_health_reporter *reporter,
107 void *priv_ctx,
108 struct netlink_ext_ack *extack)
109{
110 struct bnxt *bp = devlink_health_reporter_priv(reporter);
111 struct bnxt_fw_reporter_ctx *fw_reporter_ctx = priv_ctx;
112 unsigned long event;
113
114 if (!priv_ctx)
115 return -EOPNOTSUPP;
116
117 bp->fw_health->fatal = true;
118 event = fw_reporter_ctx->sp_event;
119 if (event == BNXT_FW_RESET_NOTIFY_SP_EVENT)
120 bnxt_fw_reset(bp);
121 else if (event == BNXT_FW_EXCEPTION_SP_EVENT)
122 bnxt_fw_exception(bp);
123
124 return -EINPROGRESS;
125}
126
127static const
128struct devlink_health_reporter_ops bnxt_dl_fw_fatal_reporter_ops = {
129 .name = "fw_fatal",
130 .recover = bnxt_fw_fatal_recover,
131};
132
133void bnxt_dl_fw_reporters_create(struct bnxt *bp)
134{
135 struct bnxt_fw_health *health = bp->fw_health;
136
137 if (!bp->dl || !health)
138 return;
139
140 if (!(bp->fw_cap & BNXT_FW_CAP_HOT_RESET) || health->fw_reset_reporter)
141 goto err_recovery;
142
143 health->fw_reset_reporter =
144 devlink_health_reporter_create(bp->dl,
145 &bnxt_dl_fw_reset_reporter_ops,
146 0, bp);
147 if (IS_ERR(health->fw_reset_reporter)) {
148 netdev_warn(bp->dev, "Failed to create FW fatal health reporter, rc = %ld\n",
149 PTR_ERR(health->fw_reset_reporter));
150 health->fw_reset_reporter = NULL;
151 bp->fw_cap &= ~BNXT_FW_CAP_HOT_RESET;
152 }
153
154err_recovery:
155 if (!(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY))
156 return;
157
158 if (!health->fw_reporter) {
159 health->fw_reporter =
160 devlink_health_reporter_create(bp->dl,
161 &bnxt_dl_fw_reporter_ops,
162 0, bp);
163 if (IS_ERR(health->fw_reporter)) {
164 netdev_warn(bp->dev, "Failed to create FW health reporter, rc = %ld\n",
165 PTR_ERR(health->fw_reporter));
166 health->fw_reporter = NULL;
167 bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY;
168 return;
169 }
170 }
171
172 if (health->fw_fatal_reporter)
173 return;
174
175 health->fw_fatal_reporter =
176 devlink_health_reporter_create(bp->dl,
177 &bnxt_dl_fw_fatal_reporter_ops,
178 0, bp);
179 if (IS_ERR(health->fw_fatal_reporter)) {
180 netdev_warn(bp->dev, "Failed to create FW fatal health reporter, rc = %ld\n",
181 PTR_ERR(health->fw_fatal_reporter));
182 health->fw_fatal_reporter = NULL;
183 bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY;
184 }
185}
186
187void bnxt_dl_fw_reporters_destroy(struct bnxt *bp, bool all)
188{
189 struct bnxt_fw_health *health = bp->fw_health;
190
191 if (!bp->dl || !health)
192 return;
193
194 if ((all || !(bp->fw_cap & BNXT_FW_CAP_HOT_RESET)) &&
195 health->fw_reset_reporter) {
196 devlink_health_reporter_destroy(health->fw_reset_reporter);
197 health->fw_reset_reporter = NULL;
198 }
199
200 if ((bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) && !all)
201 return;
202
203 if (health->fw_reporter) {
204 devlink_health_reporter_destroy(health->fw_reporter);
205 health->fw_reporter = NULL;
206 }
207
208 if (health->fw_fatal_reporter) {
209 devlink_health_reporter_destroy(health->fw_fatal_reporter);
210 health->fw_fatal_reporter = NULL;
211 }
212}
213
214void bnxt_devlink_health_report(struct bnxt *bp, unsigned long event)
215{
216 struct bnxt_fw_health *fw_health = bp->fw_health;
217 struct bnxt_fw_reporter_ctx fw_reporter_ctx;
218
219 fw_reporter_ctx.sp_event = event;
220 switch (event) {
221 case BNXT_FW_RESET_NOTIFY_SP_EVENT:
222 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) {
223 if (!fw_health->fw_fatal_reporter)
224 return;
225
226 devlink_health_report(fw_health->fw_fatal_reporter,
227 "FW fatal async event received",
228 &fw_reporter_ctx);
229 return;
230 }
231 if (!fw_health->fw_reset_reporter)
232 return;
233
234 devlink_health_report(fw_health->fw_reset_reporter,
235 "FW non-fatal reset event received",
236 &fw_reporter_ctx);
237 return;
238
239 case BNXT_FW_EXCEPTION_SP_EVENT:
240 if (!fw_health->fw_fatal_reporter)
241 return;
242
243 devlink_health_report(fw_health->fw_fatal_reporter,
244 "FW fatal error reported",
245 &fw_reporter_ctx);
246 return;
247 }
248}
249
250void bnxt_dl_health_status_update(struct bnxt *bp, bool healthy)
251{
252 struct bnxt_fw_health *health = bp->fw_health;
253 u8 state;
254
255 if (healthy)
256 state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY;
257 else
258 state = DEVLINK_HEALTH_REPORTER_STATE_ERROR;
259
260 if (health->fatal)
261 devlink_health_reporter_state_update(health->fw_fatal_reporter,
262 state);
263 else
264 devlink_health_reporter_state_update(health->fw_reset_reporter,
265 state);
266
267 health->fatal = false;
268}
269
270void bnxt_dl_health_recovery_done(struct bnxt *bp)
271{
272 struct bnxt_fw_health *hlth = bp->fw_health;
273
274 if (hlth->fatal)
275 devlink_health_reporter_recovery_done(hlth->fw_fatal_reporter);
276 else
277 devlink_health_reporter_recovery_done(hlth->fw_reset_reporter);
278}
279
280static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
281 struct netlink_ext_ack *extack);
282
283static const struct devlink_ops bnxt_dl_ops = {
284#ifdef CONFIG_BNXT_SRIOV
285 .eswitch_mode_set = bnxt_dl_eswitch_mode_set,
286 .eswitch_mode_get = bnxt_dl_eswitch_mode_get,
287#endif
288 .info_get = bnxt_dl_info_get,
289 .flash_update = bnxt_dl_flash_update,
290};
291
292static const struct devlink_ops bnxt_vf_dl_ops;
293
294enum bnxt_dl_param_id {
295 BNXT_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
296 BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
297};
298
299static const struct bnxt_dl_nvm_param nvm_params[] = {
300 {DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, NVM_OFF_ENABLE_SRIOV,
301 BNXT_NVM_SHARED_CFG, 1, 1},
302 {DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, NVM_OFF_IGNORE_ARI,
303 BNXT_NVM_SHARED_CFG, 1, 1},
304 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
305 NVM_OFF_MSIX_VEC_PER_PF_MAX, BNXT_NVM_SHARED_CFG, 10, 4},
306 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
307 NVM_OFF_MSIX_VEC_PER_PF_MIN, BNXT_NVM_SHARED_CFG, 7, 4},
308 {BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, NVM_OFF_DIS_GRE_VER_CHECK,
309 BNXT_NVM_SHARED_CFG, 1, 1},
310};
311
312union bnxt_nvm_data {
313 u8 val8;
314 __le32 val32;
315};
316
317static void bnxt_copy_to_nvm_data(union bnxt_nvm_data *dst,
318 union devlink_param_value *src,
319 int nvm_num_bits, int dl_num_bytes)
320{
321 u32 val32 = 0;
322
323 if (nvm_num_bits == 1) {
324 dst->val8 = src->vbool;
325 return;
326 }
327 if (dl_num_bytes == 4)
328 val32 = src->vu32;
329 else if (dl_num_bytes == 2)
330 val32 = (u32)src->vu16;
331 else if (dl_num_bytes == 1)
332 val32 = (u32)src->vu8;
333 dst->val32 = cpu_to_le32(val32);
334}
335
336static void bnxt_copy_from_nvm_data(union devlink_param_value *dst,
337 union bnxt_nvm_data *src,
338 int nvm_num_bits, int dl_num_bytes)
339{
340 u32 val32;
341
342 if (nvm_num_bits == 1) {
343 dst->vbool = src->val8;
344 return;
345 }
346 val32 = le32_to_cpu(src->val32);
347 if (dl_num_bytes == 4)
348 dst->vu32 = val32;
349 else if (dl_num_bytes == 2)
350 dst->vu16 = (u16)val32;
351 else if (dl_num_bytes == 1)
352 dst->vu8 = (u8)val32;
353}
354
355static int bnxt_hwrm_get_nvm_cfg_ver(struct bnxt *bp, u32 *nvm_cfg_ver)
356{
357 struct hwrm_nvm_get_variable_input *req;
358 u16 bytes = BNXT_NVM_CFG_VER_BYTES;
359 u16 bits = BNXT_NVM_CFG_VER_BITS;
360 union devlink_param_value ver;
361 union bnxt_nvm_data *data;
362 dma_addr_t data_dma_addr;
363 int rc, i = 2;
364 u16 dim = 1;
365
366 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE);
367 if (rc)
368 return rc;
369
370 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr);
371 if (!data) {
372 rc = -ENOMEM;
373 goto exit;
374 }
375
376
377 if (!BNXT_CHIP_P5(bp)) {
378 dim = 0;
379 i = 0;
380 bits *= 3;
381 bytes *= 4;
382 }
383
384 hwrm_req_hold(bp, req);
385 req->dest_data_addr = cpu_to_le64(data_dma_addr);
386 req->data_len = cpu_to_le16(bits);
387 req->option_num = cpu_to_le16(NVM_OFF_NVM_CFG_VER);
388 req->dimensions = cpu_to_le16(dim);
389
390 while (i >= 0) {
391 req->index_0 = cpu_to_le16(i--);
392 rc = hwrm_req_send_silent(bp, req);
393 if (rc)
394 goto exit;
395 bnxt_copy_from_nvm_data(&ver, data, bits, bytes);
396
397 if (BNXT_CHIP_P5(bp)) {
398 *nvm_cfg_ver <<= 8;
399 *nvm_cfg_ver |= ver.vu8;
400 } else {
401 *nvm_cfg_ver = ver.vu32;
402 }
403 }
404
405exit:
406 hwrm_req_drop(bp, req);
407 return rc;
408}
409
410static int bnxt_dl_info_put(struct bnxt *bp, struct devlink_info_req *req,
411 enum bnxt_dl_version_type type, const char *key,
412 char *buf)
413{
414 if (!strlen(buf))
415 return 0;
416
417 if ((bp->flags & BNXT_FLAG_CHIP_P5) &&
418 (!strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_NCSI) ||
419 !strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_ROCE)))
420 return 0;
421
422 switch (type) {
423 case BNXT_VERSION_FIXED:
424 return devlink_info_version_fixed_put(req, key, buf);
425 case BNXT_VERSION_RUNNING:
426 return devlink_info_version_running_put(req, key, buf);
427 case BNXT_VERSION_STORED:
428 return devlink_info_version_stored_put(req, key, buf);
429 }
430 return 0;
431}
432
433#define HWRM_FW_VER_STR_LEN 16
434
435static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
436 struct netlink_ext_ack *extack)
437{
438 struct hwrm_nvm_get_dev_info_output nvm_dev_info;
439 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
440 struct hwrm_ver_get_output *ver_resp;
441 char mgmt_ver[FW_VER_STR_LEN];
442 char roce_ver[FW_VER_STR_LEN];
443 char ncsi_ver[FW_VER_STR_LEN];
444 char buf[32];
445 u32 ver = 0;
446 int rc;
447
448 rc = devlink_info_driver_name_put(req, DRV_MODULE_NAME);
449 if (rc)
450 return rc;
451
452 if (BNXT_PF(bp) && (bp->flags & BNXT_FLAG_DSN_VALID)) {
453 sprintf(buf, "%02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X",
454 bp->dsn[7], bp->dsn[6], bp->dsn[5], bp->dsn[4],
455 bp->dsn[3], bp->dsn[2], bp->dsn[1], bp->dsn[0]);
456 rc = devlink_info_serial_number_put(req, buf);
457 if (rc)
458 return rc;
459 }
460
461 if (strlen(bp->board_serialno)) {
462 rc = devlink_info_board_serial_number_put(req, bp->board_serialno);
463 if (rc)
464 return rc;
465 }
466
467 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
468 DEVLINK_INFO_VERSION_GENERIC_BOARD_ID,
469 bp->board_partno);
470 if (rc)
471 return rc;
472
473 sprintf(buf, "%X", bp->chip_num);
474 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
475 DEVLINK_INFO_VERSION_GENERIC_ASIC_ID, buf);
476 if (rc)
477 return rc;
478
479 ver_resp = &bp->ver_resp;
480 sprintf(buf, "%c%d", 'A' + ver_resp->chip_rev, ver_resp->chip_metal);
481 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
482 DEVLINK_INFO_VERSION_GENERIC_ASIC_REV, buf);
483 if (rc)
484 return rc;
485
486 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
487 DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
488 bp->nvm_cfg_ver);
489 if (rc)
490 return rc;
491
492 buf[0] = 0;
493 strncat(buf, ver_resp->active_pkg_name, HWRM_FW_VER_STR_LEN);
494 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
495 DEVLINK_INFO_VERSION_GENERIC_FW, buf);
496 if (rc)
497 return rc;
498
499 if (BNXT_PF(bp) && !bnxt_hwrm_get_nvm_cfg_ver(bp, &ver)) {
500 sprintf(buf, "%d.%d.%d", (ver >> 16) & 0xff, (ver >> 8) & 0xff,
501 ver & 0xff);
502 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
503 DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
504 buf);
505 if (rc)
506 return rc;
507 }
508
509 if (ver_resp->flags & VER_GET_RESP_FLAGS_EXT_VER_AVAIL) {
510 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
511 ver_resp->hwrm_fw_major, ver_resp->hwrm_fw_minor,
512 ver_resp->hwrm_fw_build, ver_resp->hwrm_fw_patch);
513
514 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
515 ver_resp->mgmt_fw_major, ver_resp->mgmt_fw_minor,
516 ver_resp->mgmt_fw_build, ver_resp->mgmt_fw_patch);
517
518 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
519 ver_resp->roce_fw_major, ver_resp->roce_fw_minor,
520 ver_resp->roce_fw_build, ver_resp->roce_fw_patch);
521 } else {
522 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
523 ver_resp->hwrm_fw_maj_8b, ver_resp->hwrm_fw_min_8b,
524 ver_resp->hwrm_fw_bld_8b, ver_resp->hwrm_fw_rsvd_8b);
525
526 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
527 ver_resp->mgmt_fw_maj_8b, ver_resp->mgmt_fw_min_8b,
528 ver_resp->mgmt_fw_bld_8b, ver_resp->mgmt_fw_rsvd_8b);
529
530 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
531 ver_resp->roce_fw_maj_8b, ver_resp->roce_fw_min_8b,
532 ver_resp->roce_fw_bld_8b, ver_resp->roce_fw_rsvd_8b);
533 }
534 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
535 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
536 if (rc)
537 return rc;
538
539 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
540 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API,
541 bp->hwrm_ver_supp);
542 if (rc)
543 return rc;
544
545 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
546 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
547 if (rc)
548 return rc;
549
550 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
551 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
552 if (rc)
553 return rc;
554
555 rc = bnxt_hwrm_nvm_get_dev_info(bp, &nvm_dev_info);
556 if (rc ||
557 !(nvm_dev_info.flags & NVM_GET_DEV_INFO_RESP_FLAGS_FW_VER_VALID))
558 return 0;
559
560 buf[0] = 0;
561 strncat(buf, nvm_dev_info.pkg_name, HWRM_FW_VER_STR_LEN);
562 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
563 DEVLINK_INFO_VERSION_GENERIC_FW, buf);
564 if (rc)
565 return rc;
566
567 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
568 nvm_dev_info.hwrm_fw_major, nvm_dev_info.hwrm_fw_minor,
569 nvm_dev_info.hwrm_fw_build, nvm_dev_info.hwrm_fw_patch);
570 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
571 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
572 if (rc)
573 return rc;
574
575 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
576 nvm_dev_info.mgmt_fw_major, nvm_dev_info.mgmt_fw_minor,
577 nvm_dev_info.mgmt_fw_build, nvm_dev_info.mgmt_fw_patch);
578 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
579 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
580 if (rc)
581 return rc;
582
583 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
584 nvm_dev_info.roce_fw_major, nvm_dev_info.roce_fw_minor,
585 nvm_dev_info.roce_fw_build, nvm_dev_info.roce_fw_patch);
586 return bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
587 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
588}
589
590static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg,
591 union devlink_param_value *val)
592{
593 struct hwrm_nvm_get_variable_input *req = msg;
594 struct bnxt_dl_nvm_param nvm_param;
595 struct hwrm_err_output *resp;
596 union bnxt_nvm_data *data;
597 dma_addr_t data_dma_addr;
598 int idx = 0, rc, i;
599
600
601 if (BNXT_VF(bp)) {
602 hwrm_req_drop(bp, req);
603 return -EPERM;
604 }
605
606 for (i = 0; i < ARRAY_SIZE(nvm_params); i++) {
607 if (nvm_params[i].id == param_id) {
608 nvm_param = nvm_params[i];
609 break;
610 }
611 }
612
613 if (i == ARRAY_SIZE(nvm_params)) {
614 hwrm_req_drop(bp, req);
615 return -EOPNOTSUPP;
616 }
617
618 if (nvm_param.dir_type == BNXT_NVM_PORT_CFG)
619 idx = bp->pf.port_id;
620 else if (nvm_param.dir_type == BNXT_NVM_FUNC_CFG)
621 idx = bp->pf.fw_fid - BNXT_FIRST_PF_FID;
622
623 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr);
624
625 if (!data) {
626 hwrm_req_drop(bp, req);
627 return -ENOMEM;
628 }
629
630 req->dest_data_addr = cpu_to_le64(data_dma_addr);
631 req->data_len = cpu_to_le16(nvm_param.nvm_num_bits);
632 req->option_num = cpu_to_le16(nvm_param.offset);
633 req->index_0 = cpu_to_le16(idx);
634 if (idx)
635 req->dimensions = cpu_to_le16(1);
636
637 resp = hwrm_req_hold(bp, req);
638 if (req->req_type == cpu_to_le16(HWRM_NVM_SET_VARIABLE)) {
639 bnxt_copy_to_nvm_data(data, val, nvm_param.nvm_num_bits,
640 nvm_param.dl_num_bytes);
641 rc = hwrm_req_send(bp, msg);
642 } else {
643 rc = hwrm_req_send_silent(bp, msg);
644 if (!rc) {
645 bnxt_copy_from_nvm_data(val, data,
646 nvm_param.nvm_num_bits,
647 nvm_param.dl_num_bytes);
648 } else {
649 if (resp->cmd_err ==
650 NVM_GET_VARIABLE_CMD_ERR_CODE_VAR_NOT_EXIST)
651 rc = -EOPNOTSUPP;
652 }
653 }
654 hwrm_req_drop(bp, req);
655 if (rc == -EACCES)
656 netdev_err(bp->dev, "PF does not have admin privileges to modify NVM config\n");
657 return rc;
658}
659
660static int bnxt_dl_nvm_param_get(struct devlink *dl, u32 id,
661 struct devlink_param_gset_ctx *ctx)
662{
663 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
664 struct hwrm_nvm_get_variable_input *req;
665 int rc;
666
667 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE);
668 if (rc)
669 return rc;
670
671 rc = bnxt_hwrm_nvm_req(bp, id, req, &ctx->val);
672 if (!rc && id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
673 ctx->val.vbool = !ctx->val.vbool;
674
675 return rc;
676}
677
678static int bnxt_dl_nvm_param_set(struct devlink *dl, u32 id,
679 struct devlink_param_gset_ctx *ctx)
680{
681 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
682 struct hwrm_nvm_set_variable_input *req;
683 int rc;
684
685 rc = hwrm_req_init(bp, req, HWRM_NVM_SET_VARIABLE);
686 if (rc)
687 return rc;
688
689 if (id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
690 ctx->val.vbool = !ctx->val.vbool;
691
692 return bnxt_hwrm_nvm_req(bp, id, req, &ctx->val);
693}
694
695static int bnxt_dl_msix_validate(struct devlink *dl, u32 id,
696 union devlink_param_value val,
697 struct netlink_ext_ack *extack)
698{
699 int max_val = -1;
700
701 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX)
702 max_val = BNXT_MSIX_VEC_MAX;
703
704 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN)
705 max_val = BNXT_MSIX_VEC_MIN_MAX;
706
707 if (val.vu32 > max_val) {
708 NL_SET_ERR_MSG_MOD(extack, "MSIX value is exceeding the range");
709 return -EINVAL;
710 }
711
712 return 0;
713}
714
715static const struct devlink_param bnxt_dl_params[] = {
716 DEVLINK_PARAM_GENERIC(ENABLE_SRIOV,
717 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
718 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
719 NULL),
720 DEVLINK_PARAM_GENERIC(IGNORE_ARI,
721 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
722 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
723 NULL),
724 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MAX,
725 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
726 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
727 bnxt_dl_msix_validate),
728 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MIN,
729 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
730 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
731 bnxt_dl_msix_validate),
732 DEVLINK_PARAM_DRIVER(BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
733 "gre_ver_check", DEVLINK_PARAM_TYPE_BOOL,
734 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
735 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
736 NULL),
737};
738
739static const struct devlink_param bnxt_dl_port_params[] = {
740};
741
742static int bnxt_dl_params_register(struct bnxt *bp)
743{
744 int rc;
745
746 if (bp->hwrm_spec_code < 0x10600)
747 return 0;
748
749 rc = devlink_params_register(bp->dl, bnxt_dl_params,
750 ARRAY_SIZE(bnxt_dl_params));
751 if (rc) {
752 netdev_warn(bp->dev, "devlink_params_register failed. rc=%d\n",
753 rc);
754 return rc;
755 }
756 rc = devlink_port_params_register(&bp->dl_port, bnxt_dl_port_params,
757 ARRAY_SIZE(bnxt_dl_port_params));
758 if (rc) {
759 netdev_err(bp->dev, "devlink_port_params_register failed\n");
760 devlink_params_unregister(bp->dl, bnxt_dl_params,
761 ARRAY_SIZE(bnxt_dl_params));
762 return rc;
763 }
764 devlink_params_publish(bp->dl);
765
766 return 0;
767}
768
769static void bnxt_dl_params_unregister(struct bnxt *bp)
770{
771 if (bp->hwrm_spec_code < 0x10600)
772 return;
773
774 devlink_params_unregister(bp->dl, bnxt_dl_params,
775 ARRAY_SIZE(bnxt_dl_params));
776 devlink_port_params_unregister(&bp->dl_port, bnxt_dl_port_params,
777 ARRAY_SIZE(bnxt_dl_port_params));
778}
779
780int bnxt_dl_register(struct bnxt *bp)
781{
782 const struct devlink_ops *devlink_ops;
783 struct devlink_port_attrs attrs = {};
784 struct devlink *dl;
785 int rc;
786
787 if (BNXT_PF(bp))
788 devlink_ops = &bnxt_dl_ops;
789 else
790 devlink_ops = &bnxt_vf_dl_ops;
791
792 dl = devlink_alloc(devlink_ops, sizeof(struct bnxt_dl), &bp->pdev->dev);
793 if (!dl) {
794 netdev_warn(bp->dev, "devlink_alloc failed\n");
795 return -ENOMEM;
796 }
797
798 bnxt_link_bp_to_dl(bp, dl);
799
800
801 if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV) &&
802 bp->hwrm_spec_code > 0x10803)
803 bp->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY;
804
805 rc = devlink_register(dl);
806 if (rc) {
807 netdev_warn(bp->dev, "devlink_register failed. rc=%d\n", rc);
808 goto err_dl_free;
809 }
810
811 if (!BNXT_PF(bp))
812 return 0;
813
814 attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
815 attrs.phys.port_number = bp->pf.port_id;
816 memcpy(attrs.switch_id.id, bp->dsn, sizeof(bp->dsn));
817 attrs.switch_id.id_len = sizeof(bp->dsn);
818 devlink_port_attrs_set(&bp->dl_port, &attrs);
819 rc = devlink_port_register(dl, &bp->dl_port, bp->pf.port_id);
820 if (rc) {
821 netdev_err(bp->dev, "devlink_port_register failed\n");
822 goto err_dl_unreg;
823 }
824
825 rc = bnxt_dl_params_register(bp);
826 if (rc)
827 goto err_dl_port_unreg;
828
829 return 0;
830
831err_dl_port_unreg:
832 devlink_port_unregister(&bp->dl_port);
833err_dl_unreg:
834 devlink_unregister(dl);
835err_dl_free:
836 bnxt_link_bp_to_dl(bp, NULL);
837 devlink_free(dl);
838 return rc;
839}
840
841void bnxt_dl_unregister(struct bnxt *bp)
842{
843 struct devlink *dl = bp->dl;
844
845 if (!dl)
846 return;
847
848 if (BNXT_PF(bp)) {
849 bnxt_dl_params_unregister(bp);
850 devlink_port_unregister(&bp->dl_port);
851 }
852 devlink_unregister(dl);
853 devlink_free(dl);
854}
855
