projects / linux-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
devlink: Add macro for "fw.mgmt.api" to info_get cb.
[linux-block.git] / drivers / net / ethernet / broadcom / bnxt / bnxt_devlink.c
CommitLineData
3c467bf3
SL		 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>
477edb78 12#include <net/devlink.h>
3c467bf3
SL		 13#include "bnxt_hsi.h"
14#include "bnxt.h"
15#include "bnxt_vfr.h"
16#include "bnxt_devlink.h"
d168f328
VV		 17#include "bnxt_ethtool.h"
18
19static int
20bnxt_dl_flash_update(struct devlink *dl, const char *filename,
21 const char *region, struct netlink_ext_ack *extack)
22{
23 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
8159cbe3 24 int rc;
d168f328
VV		 25
26 if (region)
27 return -EOPNOTSUPP;
28
29 if (!BNXT_PF(bp)) {
30 NL_SET_ERR_MSG_MOD(extack,
31 "flash update not supported from a VF");
32 return -EPERM;
33 }
34
8159cbe3
VV		 35 devlink_flash_update_begin_notify(dl);
36 devlink_flash_update_status_notify(dl, "Preparing to flash", region, 0,
37 0);
38 rc = bnxt_flash_package_from_file(bp->dev, filename, 0);
39 if (!rc)
40 devlink_flash_update_status_notify(dl, "Flashing done", region,
41 0, 0);
42 else
43 devlink_flash_update_status_notify(dl, "Flashing failed",
44 region, 0, 0);
45 devlink_flash_update_end_notify(dl);
46 return rc;
d168f328 47}
3c467bf3 48
6763c779 49static int bnxt_fw_reporter_diagnose(struct devlink_health_reporter *reporter,
e7a98105
JP		 50 struct devlink_fmsg *fmsg,
51 struct netlink_ext_ack *extack)
6763c779
VV		 52{
53 struct bnxt *bp = devlink_health_reporter_priv(reporter);
6763c779
VV		 54 u32 val, health_status;
55 int rc;
56
0797c10d 57 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
6763c779
VV		 58 return 0;
59
60 val = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG);
61 health_status = val & 0xffff;
62
f255ed1c
VV		 63 if (health_status < BNXT_FW_STATUS_HEALTHY) {
64 rc = devlink_fmsg_string_pair_put(fmsg, "Description",
65 "Not yet completed initialization");
6763c779
VV		 66 if (rc)
67 return rc;
68 } else if (health_status > BNXT_FW_STATUS_HEALTHY) {
f255ed1c
VV		 69 rc = devlink_fmsg_string_pair_put(fmsg, "Description",
70 "Encountered fatal error and cannot recover");
6763c779
VV		 71 if (rc)
72 return rc;
73 }
74
75 if (val >> 16) {
f255ed1c 76 rc = devlink_fmsg_u32_pair_put(fmsg, "Error code", val >> 16);
6763c779
VV		 77 if (rc)
78 return rc;
79 }
80
81 val = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
82 rc = devlink_fmsg_u32_pair_put(fmsg, "Reset count", val);
83 if (rc)
84 return rc;
85
86 return 0;
87}
88
89static const struct devlink_health_reporter_ops bnxt_dl_fw_reporter_ops = {
90 .name = "fw",
91 .diagnose = bnxt_fw_reporter_diagnose,
92};
93
657a33c8 94static int bnxt_fw_reset_recover(struct devlink_health_reporter *reporter,
e7a98105
JP		 95 void *priv_ctx,
96 struct netlink_ext_ack *extack)
657a33c8
VV		 97{
98 struct bnxt *bp = devlink_health_reporter_priv(reporter);
99
100 if (!priv_ctx)
101 return -EOPNOTSUPP;
102
103 bnxt_fw_reset(bp);
737d7a6c 104 return -EINPROGRESS;
657a33c8
VV		 105}
106
107static const
108struct devlink_health_reporter_ops bnxt_dl_fw_reset_reporter_ops = {
109 .name = "fw_reset",
110 .recover = bnxt_fw_reset_recover,
111};
112
acfb50e4 113static int bnxt_fw_fatal_recover(struct devlink_health_reporter *reporter,
e7a98105
JP		 114 void *priv_ctx,
115 struct netlink_ext_ack *extack)
acfb50e4
VV		 116{
117 struct bnxt *bp = devlink_health_reporter_priv(reporter);
118 struct bnxt_fw_reporter_ctx *fw_reporter_ctx = priv_ctx;
119 unsigned long event;
120
121 if (!priv_ctx)
122 return -EOPNOTSUPP;
123
e4e38237 124 bp->fw_health->fatal = true;
acfb50e4
VV		 125 event = fw_reporter_ctx->sp_event;
126 if (event == BNXT_FW_RESET_NOTIFY_SP_EVENT)
127 bnxt_fw_reset(bp);
128 else if (event == BNXT_FW_EXCEPTION_SP_EVENT)
129 bnxt_fw_exception(bp);
130
737d7a6c 131 return -EINPROGRESS;
acfb50e4
VV		 132}
133
134static const
135struct devlink_health_reporter_ops bnxt_dl_fw_fatal_reporter_ops = {
136 .name = "fw_fatal",
137 .recover = bnxt_fw_fatal_recover,
138};
139
937f188c 140void bnxt_dl_fw_reporters_create(struct bnxt *bp)
6763c779
VV		 141{
142 struct bnxt_fw_health *health = bp->fw_health;
143
937f188c 144 if (!bp->dl || !health)
6763c779
VV		 145 return;
146
937f188c
VV		 147 if (!(bp->fw_cap & BNXT_FW_CAP_HOT_RESET) || health->fw_reset_reporter)
148 goto err_recovery;
657a33c8
VV		 149
150 health->fw_reset_reporter =
151 devlink_health_reporter_create(bp->dl,
152 &bnxt_dl_fw_reset_reporter_ops,
153 0, true, bp);
154 if (IS_ERR(health->fw_reset_reporter)) {
155 netdev_warn(bp->dev, "Failed to create FW fatal health reporter, rc = %ld\n",
156 PTR_ERR(health->fw_reset_reporter));
157 health->fw_reset_reporter = NULL;
937f188c 158 bp->fw_cap &= ~BNXT_FW_CAP_HOT_RESET;
657a33c8 159 }
acfb50e4 160
937f188c
VV		 161err_recovery:
162 if (!(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY))
163 return;
164
165 if (!health->fw_reporter) {
166 health->fw_reporter =
167 devlink_health_reporter_create(bp->dl,
168 &bnxt_dl_fw_reporter_ops,
169 0, false, bp);
170 if (IS_ERR(health->fw_reporter)) {
171 netdev_warn(bp->dev, "Failed to create FW health reporter, rc = %ld\n",
172 PTR_ERR(health->fw_reporter));
173 health->fw_reporter = NULL;
174 bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY;
175 return;
176 }
177 }
178
179 if (health->fw_fatal_reporter)
180 return;
181
acfb50e4
VV		 182 health->fw_fatal_reporter =
183 devlink_health_reporter_create(bp->dl,
184 &bnxt_dl_fw_fatal_reporter_ops,
185 0, true, bp);
186 if (IS_ERR(health->fw_fatal_reporter)) {
187 netdev_warn(bp->dev, "Failed to create FW fatal health reporter, rc = %ld\n",
188 PTR_ERR(health->fw_fatal_reporter));
189 health->fw_fatal_reporter = NULL;
937f188c 190 bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY;
acfb50e4 191 }
6763c779
VV		 192}
193
937f188c 194void bnxt_dl_fw_reporters_destroy(struct bnxt *bp, bool all)
6763c779
VV		 195{
196 struct bnxt_fw_health *health = bp->fw_health;
197
937f188c 198 if (!bp->dl || !health)
6763c779
VV		 199 return;
200
937f188c
VV		 201 if ((all || !(bp->fw_cap & BNXT_FW_CAP_HOT_RESET)) &&
202 health->fw_reset_reporter) {
657a33c8 203 devlink_health_reporter_destroy(health->fw_reset_reporter);
937f188c
VV		 204 health->fw_reset_reporter = NULL;
205 }
acfb50e4 206
937f188c
VV		 207 if ((bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) && !all)
208 return;
209
210 if (health->fw_reporter) {
211 devlink_health_reporter_destroy(health->fw_reporter);
212 health->fw_reporter = NULL;
213 }
214
215 if (health->fw_fatal_reporter) {
acfb50e4 216 devlink_health_reporter_destroy(health->fw_fatal_reporter);
937f188c
VV		 217 health->fw_fatal_reporter = NULL;
218 }
657a33c8
VV		 219}
220
221void bnxt_devlink_health_report(struct bnxt *bp, unsigned long event)
222{
223 struct bnxt_fw_health *fw_health = bp->fw_health;
224 struct bnxt_fw_reporter_ctx fw_reporter_ctx;
225
657a33c8
VV		 226 fw_reporter_ctx.sp_event = event;
227 switch (event) {
228 case BNXT_FW_RESET_NOTIFY_SP_EVENT:
acfb50e4
VV		 229 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) {
230 if (!fw_health->fw_fatal_reporter)
231 return;
232
233 devlink_health_report(fw_health->fw_fatal_reporter,
234 "FW fatal async event received",
235 &fw_reporter_ctx);
236 return;
237 }
657a33c8
VV		 238 if (!fw_health->fw_reset_reporter)
239 return;
240
241 devlink_health_report(fw_health->fw_reset_reporter,
242 "FW non-fatal reset event received",
243 &fw_reporter_ctx);
244 return;
acfb50e4
VV		 245
246 case BNXT_FW_EXCEPTION_SP_EVENT:
247 if (!fw_health->fw_fatal_reporter)
248 return;
249
250 devlink_health_report(fw_health->fw_fatal_reporter,
251 "FW fatal error reported",
252 &fw_reporter_ctx);
253 return;
657a33c8 254 }
6763c779
VV		 255}
256
e4e38237
VV		 257void bnxt_dl_health_status_update(struct bnxt *bp, bool healthy)
258{
259 struct bnxt_fw_health *health = bp->fw_health;
260 u8 state;
261
262 if (healthy)
263 state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY;
264 else
265 state = DEVLINK_HEALTH_REPORTER_STATE_ERROR;
266
267 if (health->fatal)
268 devlink_health_reporter_state_update(health->fw_fatal_reporter,
269 state);
270 else
271 devlink_health_reporter_state_update(health->fw_reset_reporter,
272 state);
273
274 health->fatal = false;
275}
276
737d7a6c
VG		 277void bnxt_dl_health_recovery_done(struct bnxt *bp)
278{
279 struct bnxt_fw_health *hlth = bp->fw_health;
280
281 if (hlth->fatal)
282 devlink_health_reporter_recovery_done(hlth->fw_fatal_reporter);
283 else
284 devlink_health_reporter_recovery_done(hlth->fw_reset_reporter);
285}
286
9599e036
VV		 287static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
288 struct netlink_ext_ack *extack);
289
3c467bf3
SL		 290static const struct devlink_ops bnxt_dl_ops = {
291#ifdef CONFIG_BNXT_SRIOV
292 .eswitch_mode_set = bnxt_dl_eswitch_mode_set,
293 .eswitch_mode_get = bnxt_dl_eswitch_mode_get,
294#endif /* CONFIG_BNXT_SRIOV */
9599e036 295 .info_get = bnxt_dl_info_get,
d168f328 296 .flash_update = bnxt_dl_flash_update,
3c467bf3
SL		 297};
298
7e334fc8
VV		 299static const struct devlink_ops bnxt_vf_dl_ops;
300
2dc0865e
VV		 301enum bnxt_dl_param_id {
302 BNXT_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
303 BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
304};
305
6354b95e
VV		 306static const struct bnxt_dl_nvm_param nvm_params[] = {
307 {DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, NVM_OFF_ENABLE_SRIOV,
c329230c 308 BNXT_NVM_SHARED_CFG, 1, 1},
7d859234 309 {DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, NVM_OFF_IGNORE_ARI,
c329230c 310 BNXT_NVM_SHARED_CFG, 1, 1},
f399e849 311 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
c329230c 312 NVM_OFF_MSIX_VEC_PER_PF_MAX, BNXT_NVM_SHARED_CFG, 10, 4},
f399e849 313 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
c329230c 314 NVM_OFF_MSIX_VEC_PER_PF_MIN, BNXT_NVM_SHARED_CFG, 7, 4},
2dc0865e 315 {BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, NVM_OFF_DIS_GRE_VER_CHECK,
c329230c 316 BNXT_NVM_SHARED_CFG, 1, 1},
6354b95e
VV		 317};
318
83a46a82
MC		 319union bnxt_nvm_data {
320 u8 val8;
321 __le32 val32;
322};
323
324static void bnxt_copy_to_nvm_data(union bnxt_nvm_data *dst,
325 union devlink_param_value *src,
326 int nvm_num_bits, int dl_num_bytes)
327{
328 u32 val32 = 0;
329
330 if (nvm_num_bits == 1) {
331 dst->val8 = src->vbool;
332 return;
333 }
334 if (dl_num_bytes == 4)
335 val32 = src->vu32;
336 else if (dl_num_bytes == 2)
337 val32 = (u32)src->vu16;
338 else if (dl_num_bytes == 1)
339 val32 = (u32)src->vu8;
340 dst->val32 = cpu_to_le32(val32);
341}
342
343static void bnxt_copy_from_nvm_data(union devlink_param_value *dst,
344 union bnxt_nvm_data *src,
345 int nvm_num_bits, int dl_num_bytes)
346{
347 u32 val32;
348
349 if (nvm_num_bits == 1) {
350 dst->vbool = src->val8;
351 return;
352 }
353 val32 = le32_to_cpu(src->val32);
354 if (dl_num_bytes == 4)
355 dst->vu32 = val32;
356 else if (dl_num_bytes == 2)
357 dst->vu16 = (u16)val32;
358 else if (dl_num_bytes == 1)
359 dst->vu8 = (u8)val32;
360}
361
9599e036
VV		 362static int bnxt_hwrm_get_nvm_cfg_ver(struct bnxt *bp,
363 union devlink_param_value *nvm_cfg_ver)
364{
365 struct hwrm_nvm_get_variable_input req = {0};
366 union bnxt_nvm_data *data;
367 dma_addr_t data_dma_addr;
368 int rc;
369
370 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_GET_VARIABLE, -1, -1);
371 data = dma_alloc_coherent(&bp->pdev->dev, sizeof(*data),
372 &data_dma_addr, GFP_KERNEL);
373 if (!data)
374 return -ENOMEM;
375
376 req.dest_data_addr = cpu_to_le64(data_dma_addr);
377 req.data_len = cpu_to_le16(BNXT_NVM_CFG_VER_BITS);
378 req.option_num = cpu_to_le16(NVM_OFF_NVM_CFG_VER);
379
380 rc = hwrm_send_message_silent(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
381 if (!rc)
382 bnxt_copy_from_nvm_data(nvm_cfg_ver, data,
383 BNXT_NVM_CFG_VER_BITS,
384 BNXT_NVM_CFG_VER_BYTES);
385
386 dma_free_coherent(&bp->pdev->dev, sizeof(*data), data, data_dma_addr);
387 return rc;
388}
389
390static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
391 struct netlink_ext_ack *extack)
392{
393 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
394 union devlink_param_value nvm_cfg_ver;
395 struct hwrm_ver_get_output *ver_resp;
396 char mgmt_ver[FW_VER_STR_LEN];
397 char roce_ver[FW_VER_STR_LEN];
398 char fw_ver[FW_VER_STR_LEN];
399 char buf[32];
400 int rc;
401
402 rc = devlink_info_driver_name_put(req, DRV_MODULE_NAME);
403 if (rc)
404 return rc;
405
406 sprintf(buf, "%X", bp->chip_num);
407 rc = devlink_info_version_fixed_put(req,
408 DEVLINK_INFO_VERSION_GENERIC_ASIC_ID, buf);
409 if (rc)
410 return rc;
411
412 ver_resp = &bp->ver_resp;
413 sprintf(buf, "%X", ver_resp->chip_rev);
414 rc = devlink_info_version_fixed_put(req,
415 DEVLINK_INFO_VERSION_GENERIC_ASIC_REV, buf);
416 if (rc)
417 return rc;
418
419 if (BNXT_PF(bp)) {
420 sprintf(buf, "%02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X",
421 bp->dsn[7], bp->dsn[6], bp->dsn[5], bp->dsn[4],
422 bp->dsn[3], bp->dsn[2], bp->dsn[1], bp->dsn[0]);
423 rc = devlink_info_serial_number_put(req, buf);
424 if (rc)
425 return rc;
426 }
427
428 if (strlen(ver_resp->active_pkg_name)) {
429 rc =
430 devlink_info_version_running_put(req,
431 DEVLINK_INFO_VERSION_GENERIC_FW,
432 ver_resp->active_pkg_name);
433 if (rc)
434 return rc;
435 }
436
437 if (BNXT_PF(bp) && !bnxt_hwrm_get_nvm_cfg_ver(bp, &nvm_cfg_ver)) {
438 u32 ver = nvm_cfg_ver.vu32;
439
440 sprintf(buf, "%X.%X.%X", (ver >> 16) & 0xF, (ver >> 8) & 0xF,
441 ver & 0xF);
442 rc = devlink_info_version_running_put(req,
443 DEVLINK_INFO_VERSION_GENERIC_FW_PSID, buf);
444 if (rc)
445 return rc;
446 }
447
448 if (ver_resp->flags & VER_GET_RESP_FLAGS_EXT_VER_AVAIL) {
449 snprintf(fw_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
450 ver_resp->hwrm_fw_major, ver_resp->hwrm_fw_minor,
451 ver_resp->hwrm_fw_build, ver_resp->hwrm_fw_patch);
452
453 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
454 ver_resp->mgmt_fw_major, ver_resp->mgmt_fw_minor,
455 ver_resp->mgmt_fw_build, ver_resp->mgmt_fw_patch);
456
457 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
458 ver_resp->roce_fw_major, ver_resp->roce_fw_minor,
459 ver_resp->roce_fw_build, ver_resp->roce_fw_patch);
460 } else {
461 snprintf(fw_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
462 ver_resp->hwrm_fw_maj_8b, ver_resp->hwrm_fw_min_8b,
463 ver_resp->hwrm_fw_bld_8b, ver_resp->hwrm_fw_rsvd_8b);
464
465 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
466 ver_resp->mgmt_fw_maj_8b, ver_resp->mgmt_fw_min_8b,
467 ver_resp->mgmt_fw_bld_8b, ver_resp->mgmt_fw_rsvd_8b);
468
469 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
470 ver_resp->roce_fw_maj_8b, ver_resp->roce_fw_min_8b,
471 ver_resp->roce_fw_bld_8b, ver_resp->roce_fw_rsvd_8b);
472 }
473 rc = devlink_info_version_running_put(req,
474 DEVLINK_INFO_VERSION_GENERIC_FW_APP, fw_ver);
475 if (rc)
476 return rc;
477
478 if (!(bp->flags & BNXT_FLAG_CHIP_P5)) {
479 rc = devlink_info_version_running_put(req,
480 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
481 if (rc)
482 return rc;
483
484 rc = devlink_info_version_running_put(req,
485 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
486 if (rc)
487 return rc;
488 }
489 return 0;
490}
491
6354b95e
VV		 492static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg,
493 int msg_len, union devlink_param_value *val)
494{
6fc92c33 495 struct hwrm_nvm_get_variable_input *req = msg;
6354b95e 496 struct bnxt_dl_nvm_param nvm_param;
83a46a82 497 union bnxt_nvm_data *data;
6354b95e 498 dma_addr_t data_dma_addr;
c329230c 499 int idx = 0, rc, i;
6354b95e
VV		 500
501 /* Get/Set NVM CFG parameter is supported only on PFs */
502 if (BNXT_VF(bp))
503 return -EPERM;
504
505 for (i = 0; i < ARRAY_SIZE(nvm_params); i++) {
506 if (nvm_params[i].id == param_id) {
507 nvm_param = nvm_params[i];
508 break;
509 }
510 }
511
65fac4fe 512 if (i == ARRAY_SIZE(nvm_params))
513 return -EOPNOTSUPP;
514
6354b95e
VV		 515 if (nvm_param.dir_type == BNXT_NVM_PORT_CFG)
516 idx = bp->pf.port_id;
517 else if (nvm_param.dir_type == BNXT_NVM_FUNC_CFG)
518 idx = bp->pf.fw_fid - BNXT_FIRST_PF_FID;
519
83a46a82
MC		 520 data = dma_alloc_coherent(&bp->pdev->dev, sizeof(*data),
521 &data_dma_addr, GFP_KERNEL);
522 if (!data)
6354b95e
VV		 523 return -ENOMEM;
524
6fc92c33 525 req->dest_data_addr = cpu_to_le64(data_dma_addr);
c329230c 526 req->data_len = cpu_to_le16(nvm_param.nvm_num_bits);
6354b95e
VV		 527 req->option_num = cpu_to_le16(nvm_param.offset);
528 req->index_0 = cpu_to_le16(idx);
529 if (idx)
530 req->dimensions = cpu_to_le16(1);
531
b703ba75 532 if (req->req_type == cpu_to_le16(HWRM_NVM_SET_VARIABLE)) {
83a46a82
MC		 533 bnxt_copy_to_nvm_data(data, val, nvm_param.nvm_num_bits,
534 nvm_param.dl_num_bytes);
b703ba75
VV		 535 rc = hwrm_send_message(bp, msg, msg_len, HWRM_CMD_TIMEOUT);
536 } else {
537 rc = hwrm_send_message_silent(bp, msg, msg_len,
538 HWRM_CMD_TIMEOUT);
05069dd4 539 if (!rc) {
83a46a82
MC		 540 bnxt_copy_from_nvm_data(val, data,
541 nvm_param.nvm_num_bits,
542 nvm_param.dl_num_bytes);
05069dd4
VV		 543 } else {
544 struct hwrm_err_output *resp = bp->hwrm_cmd_resp_addr;
545
546 if (resp->cmd_err ==
547 NVM_GET_VARIABLE_CMD_ERR_CODE_VAR_NOT_EXIST)
548 rc = -EOPNOTSUPP;
549 }
b703ba75 550 }
83a46a82 551 dma_free_coherent(&bp->pdev->dev, sizeof(*data), data, data_dma_addr);
d4f1420d 552 if (rc == -EACCES)
3a1d52a5 553 netdev_err(bp->dev, "PF does not have admin privileges to modify NVM config\n");
d4f1420d 554 return rc;
6354b95e
VV		 555}
556
557static int bnxt_dl_nvm_param_get(struct devlink *dl, u32 id,
558 struct devlink_param_gset_ctx *ctx)
559{
560 struct hwrm_nvm_get_variable_input req = {0};
561 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
2dc0865e 562 int rc;
6354b95e
VV		 563
564 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_GET_VARIABLE, -1, -1);
2dc0865e
VV		 565 rc = bnxt_hwrm_nvm_req(bp, id, &req, sizeof(req), &ctx->val);
566 if (!rc)
567 if (id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
568 ctx->val.vbool = !ctx->val.vbool;
569
570 return rc;
6354b95e
VV		 571}
572
573static int bnxt_dl_nvm_param_set(struct devlink *dl, u32 id,
574 struct devlink_param_gset_ctx *ctx)
575{
576 struct hwrm_nvm_set_variable_input req = {0};
577 struct bnxt *bp = bnxt_get_bp_from_dl(dl);
578
579 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_SET_VARIABLE, -1, -1);
2dc0865e
VV		 580
581 if (id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
582 ctx->val.vbool = !ctx->val.vbool;
583
6354b95e
VV		 584 return bnxt_hwrm_nvm_req(bp, id, &req, sizeof(req), &ctx->val);
585}
586
f399e849
VV		 587static int bnxt_dl_msix_validate(struct devlink *dl, u32 id,
588 union devlink_param_value val,
589 struct netlink_ext_ack *extack)
590{
5fc7c12f 591 int max_val = -1;
f399e849
VV		 592
593 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX)
594 max_val = BNXT_MSIX_VEC_MAX;
595
596 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN)
597 max_val = BNXT_MSIX_VEC_MIN_MAX;
598
5fc7c12f 599 if (val.vu32 > max_val) {
f399e849
VV		 600 NL_SET_ERR_MSG_MOD(extack, "MSIX value is exceeding the range");
601 return -EINVAL;
602 }
603
604 return 0;
605}
606
6354b95e
VV		 607static const struct devlink_param bnxt_dl_params[] = {
608 DEVLINK_PARAM_GENERIC(ENABLE_SRIOV,
609 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
610 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
611 NULL),
7d859234
VV		 612 DEVLINK_PARAM_GENERIC(IGNORE_ARI,
613 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
614 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
615 NULL),
f399e849
VV		 616 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MAX,
617 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
618 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
619 bnxt_dl_msix_validate),
620 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MIN,
621 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
622 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
623 bnxt_dl_msix_validate),
2dc0865e
VV		 624 DEVLINK_PARAM_DRIVER(BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
625 "gre_ver_check", DEVLINK_PARAM_TYPE_BOOL,
626 BIT(DEVLINK_PARAM_CMODE_PERMANENT),
627 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
628 NULL),
6354b95e
VV		 629};
630
782a624d 631static const struct devlink_param bnxt_dl_port_params[] = {
782a624d
VV		 632};
633
d6292ade
VV		 634static int bnxt_dl_params_register(struct bnxt *bp)
635{
636 int rc;
637
002870eb
VV		 638 if (bp->hwrm_spec_code < 0x10600)
639 return 0;
640
d6292ade
VV		 641 rc = devlink_params_register(bp->dl, bnxt_dl_params,
642 ARRAY_SIZE(bnxt_dl_params));
643 if (rc) {
9a005c38 644 netdev_warn(bp->dev, "devlink_params_register failed. rc=%d\n",
d6292ade
VV		 645 rc);
646 return rc;
647 }
648 rc = devlink_port_params_register(&bp->dl_port, bnxt_dl_port_params,
649 ARRAY_SIZE(bnxt_dl_port_params));
650 if (rc) {
9a005c38 651 netdev_err(bp->dev, "devlink_port_params_register failed\n");
d6292ade
VV		 652 devlink_params_unregister(bp->dl, bnxt_dl_params,
653 ARRAY_SIZE(bnxt_dl_params));
654 return rc;
655 }
656 devlink_params_publish(bp->dl);
657
658 return 0;
659}
660
661static void bnxt_dl_params_unregister(struct bnxt *bp)
662{
002870eb
VV		 663 if (bp->hwrm_spec_code < 0x10600)
664 return;
665
d6292ade
VV		 666 devlink_params_unregister(bp->dl, bnxt_dl_params,
667 ARRAY_SIZE(bnxt_dl_params));
668 devlink_port_params_unregister(&bp->dl_port, bnxt_dl_port_params,
669 ARRAY_SIZE(bnxt_dl_port_params));
670}
671
3c467bf3
SL		 672int bnxt_dl_register(struct bnxt *bp)
673{
674 struct devlink *dl;
675 int rc;
676
7e334fc8
VV		 677 if (BNXT_PF(bp))
678 dl = devlink_alloc(&bnxt_dl_ops, sizeof(struct bnxt_dl));
679 else
680 dl = devlink_alloc(&bnxt_vf_dl_ops, sizeof(struct bnxt_dl));
3c467bf3 681 if (!dl) {
9a005c38 682 netdev_warn(bp->dev, "devlink_alloc failed\n");
3c467bf3
SL		 683 return -ENOMEM;
684 }
685
686 bnxt_link_bp_to_dl(bp, dl);
6354b95e
VV		 687
688 /* Add switchdev eswitch mode setting, if SRIOV supported */
689 if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV) &&
690 bp->hwrm_spec_code > 0x10803)
691 bp->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY;
692
3c467bf3
SL		 693 rc = devlink_register(dl, &bp->pdev->dev);
694 if (rc) {
9a005c38 695 netdev_warn(bp->dev, "devlink_register failed. rc=%d\n", rc);
6354b95e
VV		 696 goto err_dl_free;
697 }
698
7e334fc8
VV		 699 if (!BNXT_PF(bp))
700 return 0;
701
a0e18132 702 devlink_port_attrs_set(&bp->dl_port, DEVLINK_PORT_FLAVOUR_PHYSICAL,
b014232f
VV		 703 bp->pf.port_id, false, 0, bp->dsn,
704 sizeof(bp->dsn));
782a624d
VV		 705 rc = devlink_port_register(dl, &bp->dl_port, bp->pf.port_id);
706 if (rc) {
9a005c38 707 netdev_err(bp->dev, "devlink_port_register failed\n");
d6292ade 708 goto err_dl_unreg;
782a624d 709 }
782a624d 710
d6292ade
VV		 711 rc = bnxt_dl_params_register(bp);
712 if (rc)
782a624d 713 goto err_dl_port_unreg;
7c62cfb8 714
3c467bf3 715 return 0;
6354b95e 716
782a624d
VV		 717err_dl_port_unreg:
718 devlink_port_unregister(&bp->dl_port);
6354b95e
VV		 719err_dl_unreg:
720 devlink_unregister(dl);
721err_dl_free:
722 bnxt_link_bp_to_dl(bp, NULL);
723 devlink_free(dl);
724 return rc;
3c467bf3
SL		 725}
726
727void bnxt_dl_unregister(struct bnxt *bp)
728{
729 struct devlink *dl = bp->dl;
730
731 if (!dl)
732 return;
733
7e334fc8 734 if (BNXT_PF(bp)) {
d6292ade 735 bnxt_dl_params_unregister(bp);
7e334fc8 736 devlink_port_unregister(&bp->dl_port);
7e334fc8 737 }
3c467bf3
SL		 738 devlink_unregister(dl);
739 devlink_free(dl);
740}
Linux 6.x block layer and io_uring tree(s)