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 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 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 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 }; 107 108 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 }; 134 135 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 } 188 189 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 } 215 216 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 } 251 252 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 } 271 272 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 }; 318 319 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 } 337 338 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 } 356 357 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 } 384 385 static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req, 386 struct netlink_ext_ack *extack) 387 { 388 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 389 union devlink_param_value nvm_cfg_ver; 390 struct hwrm_ver_get_output *ver_resp; 391 char mgmt_ver[FW_VER_STR_LEN]; 392 char roce_ver[FW_VER_STR_LEN]; 393 char fw_ver[FW_VER_STR_LEN]; 394 char buf[32]; 395 int rc; 396 397 rc = devlink_info_driver_name_put(req, DRV_MODULE_NAME); 398 if (rc) 399 return rc; 400 401 if (strlen(bp->board_partno)) { 402 rc = devlink_info_version_fixed_put(req, 403 DEVLINK_INFO_VERSION_GENERIC_BOARD_ID, 404 bp->board_partno); 405 if (rc) 406 return rc; 407 } 408 409 if (strlen(bp->board_serialno)) { 410 rc = devlink_info_board_serial_number_put(req, bp->board_serialno); 411 if (rc) 412 return rc; 413 } 414 415 sprintf(buf, "%X", bp->chip_num); 416 rc = devlink_info_version_fixed_put(req, 417 DEVLINK_INFO_VERSION_GENERIC_ASIC_ID, buf); 418 if (rc) 419 return rc; 420 421 ver_resp = &bp->ver_resp; 422 sprintf(buf, "%X", ver_resp->chip_rev); 423 rc = devlink_info_version_fixed_put(req, 424 DEVLINK_INFO_VERSION_GENERIC_ASIC_REV, buf); 425 if (rc) 426 return rc; 427 428 if (BNXT_PF(bp)) { 429 sprintf(buf, "%02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X", 430 bp->dsn[7], bp->dsn[6], bp->dsn[5], bp->dsn[4], 431 bp->dsn[3], bp->dsn[2], bp->dsn[1], bp->dsn[0]); 432 rc = devlink_info_serial_number_put(req, buf); 433 if (rc) 434 return rc; 435 } 436 437 if (strlen(ver_resp->active_pkg_name)) { 438 rc = 439 devlink_info_version_running_put(req, 440 DEVLINK_INFO_VERSION_GENERIC_FW, 441 ver_resp->active_pkg_name); 442 if (rc) 443 return rc; 444 } 445 446 if (BNXT_PF(bp) && !bnxt_hwrm_get_nvm_cfg_ver(bp, &nvm_cfg_ver)) { 447 u32 ver = nvm_cfg_ver.vu32; 448 449 sprintf(buf, "%X.%X.%X", (ver >> 16) & 0xF, (ver >> 8) & 0xF, 450 ver & 0xF); 451 rc = devlink_info_version_running_put(req, 452 DEVLINK_INFO_VERSION_GENERIC_FW_PSID, buf); 453 if (rc) 454 return rc; 455 } 456 457 if (ver_resp->flags & VER_GET_RESP_FLAGS_EXT_VER_AVAIL) { 458 snprintf(fw_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 459 ver_resp->hwrm_fw_major, ver_resp->hwrm_fw_minor, 460 ver_resp->hwrm_fw_build, ver_resp->hwrm_fw_patch); 461 462 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 463 ver_resp->mgmt_fw_major, ver_resp->mgmt_fw_minor, 464 ver_resp->mgmt_fw_build, ver_resp->mgmt_fw_patch); 465 466 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 467 ver_resp->roce_fw_major, ver_resp->roce_fw_minor, 468 ver_resp->roce_fw_build, ver_resp->roce_fw_patch); 469 } else { 470 snprintf(fw_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 471 ver_resp->hwrm_fw_maj_8b, ver_resp->hwrm_fw_min_8b, 472 ver_resp->hwrm_fw_bld_8b, ver_resp->hwrm_fw_rsvd_8b); 473 474 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 475 ver_resp->mgmt_fw_maj_8b, ver_resp->mgmt_fw_min_8b, 476 ver_resp->mgmt_fw_bld_8b, ver_resp->mgmt_fw_rsvd_8b); 477 478 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 479 ver_resp->roce_fw_maj_8b, ver_resp->roce_fw_min_8b, 480 ver_resp->roce_fw_bld_8b, ver_resp->roce_fw_rsvd_8b); 481 } 482 rc = devlink_info_version_running_put(req, 483 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, fw_ver); 484 if (rc) 485 return rc; 486 487 rc = devlink_info_version_running_put(req, 488 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API, 489 bp->hwrm_ver_supp); 490 if (rc) 491 return rc; 492 493 if (!(bp->flags & BNXT_FLAG_CHIP_P5)) { 494 rc = devlink_info_version_running_put(req, 495 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, mgmt_ver); 496 if (rc) 497 return rc; 498 499 rc = devlink_info_version_running_put(req, 500 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver); 501 if (rc) 502 return rc; 503 } 504 return 0; 505 } 506 507 static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg, 508 int msg_len, union devlink_param_value *val) 509 { 510 struct hwrm_nvm_get_variable_input *req = msg; 511 struct bnxt_dl_nvm_param nvm_param; 512 union bnxt_nvm_data *data; 513 dma_addr_t data_dma_addr; 514 int idx = 0, rc, i; 515 516 /* Get/Set NVM CFG parameter is supported only on PFs */ 517 if (BNXT_VF(bp)) 518 return -EPERM; 519 520 for (i = 0; i < ARRAY_SIZE(nvm_params); i++) { 521 if (nvm_params[i].id == param_id) { 522 nvm_param = nvm_params[i]; 523 break; 524 } 525 } 526 527 if (i == ARRAY_SIZE(nvm_params)) 528 return -EOPNOTSUPP; 529 530 if (nvm_param.dir_type == BNXT_NVM_PORT_CFG) 531 idx = bp->pf.port_id; 532 else if (nvm_param.dir_type == BNXT_NVM_FUNC_CFG) 533 idx = bp->pf.fw_fid - BNXT_FIRST_PF_FID; 534 535 data = dma_alloc_coherent(&bp->pdev->dev, sizeof(*data), 536 &data_dma_addr, GFP_KERNEL); 537 if (!data) 538 return -ENOMEM; 539 540 req->dest_data_addr = cpu_to_le64(data_dma_addr); 541 req->data_len = cpu_to_le16(nvm_param.nvm_num_bits); 542 req->option_num = cpu_to_le16(nvm_param.offset); 543 req->index_0 = cpu_to_le16(idx); 544 if (idx) 545 req->dimensions = cpu_to_le16(1); 546 547 if (req->req_type == cpu_to_le16(HWRM_NVM_SET_VARIABLE)) { 548 bnxt_copy_to_nvm_data(data, val, nvm_param.nvm_num_bits, 549 nvm_param.dl_num_bytes); 550 rc = hwrm_send_message(bp, msg, msg_len, HWRM_CMD_TIMEOUT); 551 } else { 552 rc = hwrm_send_message_silent(bp, msg, msg_len, 553 HWRM_CMD_TIMEOUT); 554 if (!rc) { 555 bnxt_copy_from_nvm_data(val, data, 556 nvm_param.nvm_num_bits, 557 nvm_param.dl_num_bytes); 558 } else { 559 struct hwrm_err_output *resp = bp->hwrm_cmd_resp_addr; 560 561 if (resp->cmd_err == 562 NVM_GET_VARIABLE_CMD_ERR_CODE_VAR_NOT_EXIST) 563 rc = -EOPNOTSUPP; 564 } 565 } 566 dma_free_coherent(&bp->pdev->dev, sizeof(*data), data, data_dma_addr); 567 if (rc == -EACCES) 568 netdev_err(bp->dev, "PF does not have admin privileges to modify NVM config\n"); 569 return rc; 570 } 571 572 static int bnxt_dl_nvm_param_get(struct devlink *dl, u32 id, 573 struct devlink_param_gset_ctx *ctx) 574 { 575 struct hwrm_nvm_get_variable_input req = {0}; 576 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 577 int rc; 578 579 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_GET_VARIABLE, -1, -1); 580 rc = bnxt_hwrm_nvm_req(bp, id, &req, sizeof(req), &ctx->val); 581 if (!rc) 582 if (id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK) 583 ctx->val.vbool = !ctx->val.vbool; 584 585 return rc; 586 } 587 588 static int bnxt_dl_nvm_param_set(struct devlink *dl, u32 id, 589 struct devlink_param_gset_ctx *ctx) 590 { 591 struct hwrm_nvm_set_variable_input req = {0}; 592 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 593 594 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_SET_VARIABLE, -1, -1); 595 596 if (id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK) 597 ctx->val.vbool = !ctx->val.vbool; 598 599 return bnxt_hwrm_nvm_req(bp, id, &req, sizeof(req), &ctx->val); 600 } 601 602 static int bnxt_dl_msix_validate(struct devlink *dl, u32 id, 603 union devlink_param_value val, 604 struct netlink_ext_ack *extack) 605 { 606 int max_val = -1; 607 608 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX) 609 max_val = BNXT_MSIX_VEC_MAX; 610 611 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN) 612 max_val = BNXT_MSIX_VEC_MIN_MAX; 613 614 if (val.vu32 > max_val) { 615 NL_SET_ERR_MSG_MOD(extack, "MSIX value is exceeding the range"); 616 return -EINVAL; 617 } 618 619 return 0; 620 } 621 622 static const struct devlink_param bnxt_dl_params[] = { 623 DEVLINK_PARAM_GENERIC(ENABLE_SRIOV, 624 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 625 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 626 NULL), 627 DEVLINK_PARAM_GENERIC(IGNORE_ARI, 628 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 629 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 630 NULL), 631 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MAX, 632 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 633 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 634 bnxt_dl_msix_validate), 635 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MIN, 636 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 637 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 638 bnxt_dl_msix_validate), 639 DEVLINK_PARAM_DRIVER(BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, 640 "gre_ver_check", DEVLINK_PARAM_TYPE_BOOL, 641 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 642 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 643 NULL), 644 }; 645 646 static const struct devlink_param bnxt_dl_port_params[] = { 647 }; 648 649 static int bnxt_dl_params_register(struct bnxt *bp) 650 { 651 int rc; 652 653 if (bp->hwrm_spec_code < 0x10600) 654 return 0; 655 656 rc = devlink_params_register(bp->dl, bnxt_dl_params, 657 ARRAY_SIZE(bnxt_dl_params)); 658 if (rc) { 659 netdev_warn(bp->dev, "devlink_params_register failed. rc=%d\n", 660 rc); 661 return rc; 662 } 663 rc = devlink_port_params_register(&bp->dl_port, bnxt_dl_port_params, 664 ARRAY_SIZE(bnxt_dl_port_params)); 665 if (rc) { 666 netdev_err(bp->dev, "devlink_port_params_register failed\n"); 667 devlink_params_unregister(bp->dl, bnxt_dl_params, 668 ARRAY_SIZE(bnxt_dl_params)); 669 return rc; 670 } 671 devlink_params_publish(bp->dl); 672 673 return 0; 674 } 675 676 static void bnxt_dl_params_unregister(struct bnxt *bp) 677 { 678 if (bp->hwrm_spec_code < 0x10600) 679 return; 680 681 devlink_params_unregister(bp->dl, bnxt_dl_params, 682 ARRAY_SIZE(bnxt_dl_params)); 683 devlink_port_params_unregister(&bp->dl_port, bnxt_dl_port_params, 684 ARRAY_SIZE(bnxt_dl_port_params)); 685 } 686 687 int bnxt_dl_register(struct bnxt *bp) 688 { 689 struct devlink_port_attrs attrs = {}; 690 struct devlink *dl; 691 int rc; 692 693 if (BNXT_PF(bp)) 694 dl = devlink_alloc(&bnxt_dl_ops, sizeof(struct bnxt_dl)); 695 else 696 dl = devlink_alloc(&bnxt_vf_dl_ops, sizeof(struct bnxt_dl)); 697 if (!dl) { 698 netdev_warn(bp->dev, "devlink_alloc failed\n"); 699 return -ENOMEM; 700 } 701 702 bnxt_link_bp_to_dl(bp, dl); 703 704 /* Add switchdev eswitch mode setting, if SRIOV supported */ 705 if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV) && 706 bp->hwrm_spec_code > 0x10803) 707 bp->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY; 708 709 rc = devlink_register(dl, &bp->pdev->dev); 710 if (rc) { 711 netdev_warn(bp->dev, "devlink_register failed. rc=%d\n", rc); 712 goto err_dl_free; 713 } 714 715 if (!BNXT_PF(bp)) 716 return 0; 717 718 attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL; 719 attrs.phys.port_number = bp->pf.port_id; 720 memcpy(attrs.switch_id.id, bp->dsn, sizeof(bp->dsn)); 721 attrs.switch_id.id_len = sizeof(bp->dsn); 722 devlink_port_attrs_set(&bp->dl_port, &attrs); 723 rc = devlink_port_register(dl, &bp->dl_port, bp->pf.port_id); 724 if (rc) { 725 netdev_err(bp->dev, "devlink_port_register failed\n"); 726 goto err_dl_unreg; 727 } 728 729 rc = bnxt_dl_params_register(bp); 730 if (rc) 731 goto err_dl_port_unreg; 732 733 return 0; 734 735 err_dl_port_unreg: 736 devlink_port_unregister(&bp->dl_port); 737 err_dl_unreg: 738 devlink_unregister(dl); 739 err_dl_free: 740 bnxt_link_bp_to_dl(bp, NULL); 741 devlink_free(dl); 742 return rc; 743 } 744 745 void bnxt_dl_unregister(struct bnxt *bp) 746 { 747 struct devlink *dl = bp->dl; 748 749 if (!dl) 750 return; 751 752 if (BNXT_PF(bp)) { 753 bnxt_dl_params_unregister(bp); 754 devlink_port_unregister(&bp->dl_port); 755 } 756 devlink_unregister(dl); 757 devlink_free(dl); 758 } 759