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