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 <linux/vmalloc.h> 13 #include <net/devlink.h> 14 #include "bnxt_hsi.h" 15 #include "bnxt.h" 16 #include "bnxt_hwrm.h" 17 #include "bnxt_vfr.h" 18 #include "bnxt_devlink.h" 19 #include "bnxt_ethtool.h" 20 #include "bnxt_ulp.h" 21 #include "bnxt_ptp.h" 22 #include "bnxt_coredump.h" 23 24 static void __bnxt_fw_recover(struct bnxt *bp) 25 { 26 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state) || 27 test_bit(BNXT_STATE_FW_NON_FATAL_COND, &bp->state)) 28 bnxt_fw_reset(bp); 29 else 30 bnxt_fw_exception(bp); 31 } 32 33 static int 34 bnxt_dl_flash_update(struct devlink *dl, 35 struct devlink_flash_update_params *params, 36 struct netlink_ext_ack *extack) 37 { 38 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 39 int rc; 40 41 if (!BNXT_PF(bp)) { 42 NL_SET_ERR_MSG_MOD(extack, 43 "flash update not supported from a VF"); 44 return -EPERM; 45 } 46 47 devlink_flash_update_status_notify(dl, "Preparing to flash", NULL, 0, 0); 48 rc = bnxt_flash_package_from_fw_obj(bp->dev, params->fw, 0, extack); 49 if (!rc) 50 devlink_flash_update_status_notify(dl, "Flashing done", NULL, 0, 0); 51 else 52 devlink_flash_update_status_notify(dl, "Flashing failed", NULL, 0, 0); 53 return rc; 54 } 55 56 static int bnxt_hwrm_remote_dev_reset_set(struct bnxt *bp, bool remote_reset) 57 { 58 struct hwrm_func_cfg_input *req; 59 int rc; 60 61 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF) 62 return -EOPNOTSUPP; 63 64 rc = hwrm_req_init(bp, req, HWRM_FUNC_CFG); 65 if (rc) 66 return rc; 67 68 req->fid = cpu_to_le16(0xffff); 69 req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_HOT_RESET_IF_SUPPORT); 70 if (remote_reset) 71 req->flags = cpu_to_le32(FUNC_CFG_REQ_FLAGS_HOT_RESET_IF_EN_DIS); 72 73 return hwrm_req_send(bp, req); 74 } 75 76 static char *bnxt_health_severity_str(enum bnxt_health_severity severity) 77 { 78 switch (severity) { 79 case SEVERITY_NORMAL: return "normal"; 80 case SEVERITY_WARNING: return "warning"; 81 case SEVERITY_RECOVERABLE: return "recoverable"; 82 case SEVERITY_FATAL: return "fatal"; 83 default: return "unknown"; 84 } 85 } 86 87 static char *bnxt_health_remedy_str(enum bnxt_health_remedy remedy) 88 { 89 switch (remedy) { 90 case REMEDY_DEVLINK_RECOVER: return "devlink recover"; 91 case REMEDY_POWER_CYCLE_DEVICE: return "device power cycle"; 92 case REMEDY_POWER_CYCLE_HOST: return "host power cycle"; 93 case REMEDY_FW_UPDATE: return "update firmware"; 94 case REMEDY_HW_REPLACE: return "replace hardware"; 95 default: return "unknown"; 96 } 97 } 98 99 static int bnxt_fw_diagnose(struct devlink_health_reporter *reporter, 100 struct devlink_fmsg *fmsg, 101 struct netlink_ext_ack *extack) 102 { 103 struct bnxt *bp = devlink_health_reporter_priv(reporter); 104 struct bnxt_fw_health *h = bp->fw_health; 105 u32 fw_status, fw_resets; 106 int rc; 107 108 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) 109 return devlink_fmsg_string_pair_put(fmsg, "Status", "recovering"); 110 111 if (!h->status_reliable) 112 return devlink_fmsg_string_pair_put(fmsg, "Status", "unknown"); 113 114 mutex_lock(&h->lock); 115 fw_status = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG); 116 if (BNXT_FW_IS_BOOTING(fw_status)) { 117 rc = devlink_fmsg_string_pair_put(fmsg, "Status", "initializing"); 118 if (rc) 119 goto unlock; 120 } else if (h->severity || fw_status != BNXT_FW_STATUS_HEALTHY) { 121 if (!h->severity) { 122 h->severity = SEVERITY_FATAL; 123 h->remedy = REMEDY_POWER_CYCLE_DEVICE; 124 h->diagnoses++; 125 devlink_health_report(h->fw_reporter, 126 "FW error diagnosed", h); 127 } 128 rc = devlink_fmsg_string_pair_put(fmsg, "Status", "error"); 129 if (rc) 130 goto unlock; 131 rc = devlink_fmsg_u32_pair_put(fmsg, "Syndrome", fw_status); 132 if (rc) 133 goto unlock; 134 } else { 135 rc = devlink_fmsg_string_pair_put(fmsg, "Status", "healthy"); 136 if (rc) 137 goto unlock; 138 } 139 140 rc = devlink_fmsg_string_pair_put(fmsg, "Severity", 141 bnxt_health_severity_str(h->severity)); 142 if (rc) 143 goto unlock; 144 145 if (h->severity) { 146 rc = devlink_fmsg_string_pair_put(fmsg, "Remedy", 147 bnxt_health_remedy_str(h->remedy)); 148 if (rc) 149 goto unlock; 150 if (h->remedy == REMEDY_DEVLINK_RECOVER) { 151 rc = devlink_fmsg_string_pair_put(fmsg, "Impact", 152 "traffic+ntuple_cfg"); 153 if (rc) 154 goto unlock; 155 } 156 } 157 158 unlock: 159 mutex_unlock(&h->lock); 160 if (rc || !h->resets_reliable) 161 return rc; 162 163 fw_resets = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG); 164 rc = devlink_fmsg_u32_pair_put(fmsg, "Resets", fw_resets); 165 if (rc) 166 return rc; 167 rc = devlink_fmsg_u32_pair_put(fmsg, "Arrests", h->arrests); 168 if (rc) 169 return rc; 170 rc = devlink_fmsg_u32_pair_put(fmsg, "Survivals", h->survivals); 171 if (rc) 172 return rc; 173 rc = devlink_fmsg_u32_pair_put(fmsg, "Discoveries", h->discoveries); 174 if (rc) 175 return rc; 176 rc = devlink_fmsg_u32_pair_put(fmsg, "Fatalities", h->fatalities); 177 if (rc) 178 return rc; 179 return devlink_fmsg_u32_pair_put(fmsg, "Diagnoses", h->diagnoses); 180 } 181 182 static int bnxt_fw_dump(struct devlink_health_reporter *reporter, 183 struct devlink_fmsg *fmsg, void *priv_ctx, 184 struct netlink_ext_ack *extack) 185 { 186 struct bnxt *bp = devlink_health_reporter_priv(reporter); 187 u32 dump_len; 188 void *data; 189 int rc; 190 191 /* TODO: no firmware dump support in devlink_health_report() context */ 192 if (priv_ctx) 193 return -EOPNOTSUPP; 194 195 dump_len = bnxt_get_coredump_length(bp, BNXT_DUMP_LIVE); 196 if (!dump_len) 197 return -EIO; 198 199 data = vmalloc(dump_len); 200 if (!data) 201 return -ENOMEM; 202 203 rc = bnxt_get_coredump(bp, BNXT_DUMP_LIVE, data, &dump_len); 204 if (!rc) { 205 rc = devlink_fmsg_pair_nest_start(fmsg, "core"); 206 if (rc) 207 goto exit; 208 rc = devlink_fmsg_binary_pair_put(fmsg, "data", data, dump_len); 209 if (rc) 210 goto exit; 211 rc = devlink_fmsg_u32_pair_put(fmsg, "size", dump_len); 212 if (rc) 213 goto exit; 214 rc = devlink_fmsg_pair_nest_end(fmsg); 215 } 216 217 exit: 218 vfree(data); 219 return rc; 220 } 221 222 static int bnxt_fw_recover(struct devlink_health_reporter *reporter, 223 void *priv_ctx, 224 struct netlink_ext_ack *extack) 225 { 226 struct bnxt *bp = devlink_health_reporter_priv(reporter); 227 228 if (bp->fw_health->severity == SEVERITY_FATAL) 229 return -ENODEV; 230 231 set_bit(BNXT_STATE_RECOVER, &bp->state); 232 __bnxt_fw_recover(bp); 233 234 return -EINPROGRESS; 235 } 236 237 static const struct devlink_health_reporter_ops bnxt_dl_fw_reporter_ops = { 238 .name = "fw", 239 .diagnose = bnxt_fw_diagnose, 240 .dump = bnxt_fw_dump, 241 .recover = bnxt_fw_recover, 242 }; 243 244 static struct devlink_health_reporter * 245 __bnxt_dl_reporter_create(struct bnxt *bp, 246 const struct devlink_health_reporter_ops *ops) 247 { 248 struct devlink_health_reporter *reporter; 249 250 reporter = devlink_health_reporter_create(bp->dl, ops, 0, bp); 251 if (IS_ERR(reporter)) { 252 netdev_warn(bp->dev, "Failed to create %s health reporter, rc = %ld\n", 253 ops->name, PTR_ERR(reporter)); 254 return NULL; 255 } 256 257 return reporter; 258 } 259 260 void bnxt_dl_fw_reporters_create(struct bnxt *bp) 261 { 262 struct bnxt_fw_health *fw_health = bp->fw_health; 263 264 if (fw_health && !fw_health->fw_reporter) 265 fw_health->fw_reporter = __bnxt_dl_reporter_create(bp, &bnxt_dl_fw_reporter_ops); 266 } 267 268 void bnxt_dl_fw_reporters_destroy(struct bnxt *bp) 269 { 270 struct bnxt_fw_health *fw_health = bp->fw_health; 271 272 if (fw_health && fw_health->fw_reporter) { 273 devlink_health_reporter_destroy(fw_health->fw_reporter); 274 fw_health->fw_reporter = NULL; 275 } 276 } 277 278 void bnxt_devlink_health_fw_report(struct bnxt *bp) 279 { 280 struct bnxt_fw_health *fw_health = bp->fw_health; 281 int rc; 282 283 if (!fw_health) 284 return; 285 286 if (!fw_health->fw_reporter) { 287 __bnxt_fw_recover(bp); 288 return; 289 } 290 291 mutex_lock(&fw_health->lock); 292 fw_health->severity = SEVERITY_RECOVERABLE; 293 fw_health->remedy = REMEDY_DEVLINK_RECOVER; 294 mutex_unlock(&fw_health->lock); 295 rc = devlink_health_report(fw_health->fw_reporter, "FW error reported", 296 fw_health); 297 if (rc == -ECANCELED) 298 __bnxt_fw_recover(bp); 299 } 300 301 void bnxt_dl_health_fw_status_update(struct bnxt *bp, bool healthy) 302 { 303 struct bnxt_fw_health *fw_health = bp->fw_health; 304 u8 state; 305 306 mutex_lock(&fw_health->lock); 307 if (healthy) { 308 fw_health->severity = SEVERITY_NORMAL; 309 state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY; 310 } else { 311 fw_health->severity = SEVERITY_FATAL; 312 fw_health->remedy = REMEDY_POWER_CYCLE_DEVICE; 313 state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; 314 } 315 mutex_unlock(&fw_health->lock); 316 devlink_health_reporter_state_update(fw_health->fw_reporter, state); 317 } 318 319 void bnxt_dl_health_fw_recovery_done(struct bnxt *bp) 320 { 321 struct bnxt_dl *dl = devlink_priv(bp->dl); 322 323 devlink_health_reporter_recovery_done(bp->fw_health->fw_reporter); 324 bnxt_hwrm_remote_dev_reset_set(bp, dl->remote_reset); 325 } 326 327 static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req, 328 struct netlink_ext_ack *extack); 329 330 static void 331 bnxt_dl_livepatch_report_err(struct bnxt *bp, struct netlink_ext_ack *extack, 332 struct hwrm_fw_livepatch_output *resp) 333 { 334 int err = ((struct hwrm_err_output *)resp)->cmd_err; 335 336 switch (err) { 337 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_OPCODE: 338 netdev_err(bp->dev, "Illegal live patch opcode"); 339 NL_SET_ERR_MSG_MOD(extack, "Invalid opcode"); 340 break; 341 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_SUPPORTED: 342 NL_SET_ERR_MSG_MOD(extack, "Live patch operation not supported"); 343 break; 344 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_INSTALLED: 345 NL_SET_ERR_MSG_MOD(extack, "Live patch not found"); 346 break; 347 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_PATCHED: 348 NL_SET_ERR_MSG_MOD(extack, 349 "Live patch deactivation failed. Firmware not patched."); 350 break; 351 case FW_LIVEPATCH_CMD_ERR_CODE_AUTH_FAIL: 352 NL_SET_ERR_MSG_MOD(extack, "Live patch not authenticated"); 353 break; 354 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_HEADER: 355 NL_SET_ERR_MSG_MOD(extack, "Incompatible live patch"); 356 break; 357 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_SIZE: 358 NL_SET_ERR_MSG_MOD(extack, "Live patch has invalid size"); 359 break; 360 case FW_LIVEPATCH_CMD_ERR_CODE_ALREADY_PATCHED: 361 NL_SET_ERR_MSG_MOD(extack, "Live patch already applied"); 362 break; 363 default: 364 netdev_err(bp->dev, "Unexpected live patch error: %d\n", err); 365 NL_SET_ERR_MSG_MOD(extack, "Failed to activate live patch"); 366 break; 367 } 368 } 369 370 /* Live patch status in NVM */ 371 #define BNXT_LIVEPATCH_NOT_INSTALLED 0 372 #define BNXT_LIVEPATCH_INSTALLED FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL 373 #define BNXT_LIVEPATCH_REMOVED FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE 374 #define BNXT_LIVEPATCH_MASK (FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL | \ 375 FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE) 376 #define BNXT_LIVEPATCH_ACTIVATED BNXT_LIVEPATCH_MASK 377 378 #define BNXT_LIVEPATCH_STATE(flags) ((flags) & BNXT_LIVEPATCH_MASK) 379 380 static int 381 bnxt_dl_livepatch_activate(struct bnxt *bp, struct netlink_ext_ack *extack) 382 { 383 struct hwrm_fw_livepatch_query_output *query_resp; 384 struct hwrm_fw_livepatch_query_input *query_req; 385 struct hwrm_fw_livepatch_output *patch_resp; 386 struct hwrm_fw_livepatch_input *patch_req; 387 u16 flags, live_patch_state; 388 bool activated = false; 389 u32 installed = 0; 390 u8 target; 391 int rc; 392 393 if (~bp->fw_cap & BNXT_FW_CAP_LIVEPATCH) { 394 NL_SET_ERR_MSG_MOD(extack, "Device does not support live patch"); 395 return -EOPNOTSUPP; 396 } 397 398 rc = hwrm_req_init(bp, query_req, HWRM_FW_LIVEPATCH_QUERY); 399 if (rc) 400 return rc; 401 query_resp = hwrm_req_hold(bp, query_req); 402 403 rc = hwrm_req_init(bp, patch_req, HWRM_FW_LIVEPATCH); 404 if (rc) { 405 hwrm_req_drop(bp, query_req); 406 return rc; 407 } 408 patch_req->loadtype = FW_LIVEPATCH_REQ_LOADTYPE_NVM_INSTALL; 409 patch_resp = hwrm_req_hold(bp, patch_req); 410 411 for (target = 1; target <= FW_LIVEPATCH_REQ_FW_TARGET_LAST; target++) { 412 query_req->fw_target = target; 413 rc = hwrm_req_send(bp, query_req); 414 if (rc) { 415 NL_SET_ERR_MSG_MOD(extack, "Failed to query packages"); 416 break; 417 } 418 419 flags = le16_to_cpu(query_resp->status_flags); 420 live_patch_state = BNXT_LIVEPATCH_STATE(flags); 421 422 if (live_patch_state == BNXT_LIVEPATCH_NOT_INSTALLED) 423 continue; 424 425 if (live_patch_state == BNXT_LIVEPATCH_ACTIVATED) { 426 activated = true; 427 continue; 428 } 429 430 if (live_patch_state == BNXT_LIVEPATCH_INSTALLED) 431 patch_req->opcode = FW_LIVEPATCH_REQ_OPCODE_ACTIVATE; 432 else if (live_patch_state == BNXT_LIVEPATCH_REMOVED) 433 patch_req->opcode = FW_LIVEPATCH_REQ_OPCODE_DEACTIVATE; 434 435 patch_req->fw_target = target; 436 rc = hwrm_req_send(bp, patch_req); 437 if (rc) { 438 bnxt_dl_livepatch_report_err(bp, extack, patch_resp); 439 break; 440 } 441 installed++; 442 } 443 444 if (!rc && !installed) { 445 if (activated) { 446 NL_SET_ERR_MSG_MOD(extack, "Live patch already activated"); 447 rc = -EEXIST; 448 } else { 449 NL_SET_ERR_MSG_MOD(extack, "No live patches found"); 450 rc = -ENOENT; 451 } 452 } 453 hwrm_req_drop(bp, query_req); 454 hwrm_req_drop(bp, patch_req); 455 return rc; 456 } 457 458 static int bnxt_dl_reload_down(struct devlink *dl, bool netns_change, 459 enum devlink_reload_action action, 460 enum devlink_reload_limit limit, 461 struct netlink_ext_ack *extack) 462 { 463 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 464 int rc = 0; 465 466 switch (action) { 467 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: { 468 rtnl_lock(); 469 if (bnxt_sriov_cfg(bp)) { 470 NL_SET_ERR_MSG_MOD(extack, 471 "reload is unsupported while VFs are allocated or being configured"); 472 rtnl_unlock(); 473 return -EOPNOTSUPP; 474 } 475 if (bp->dev->reg_state == NETREG_UNREGISTERED) { 476 rtnl_unlock(); 477 return -ENODEV; 478 } 479 bnxt_ulp_stop(bp); 480 if (netif_running(bp->dev)) { 481 rc = bnxt_close_nic(bp, true, true); 482 if (rc) { 483 NL_SET_ERR_MSG_MOD(extack, "Failed to close"); 484 dev_close(bp->dev); 485 rtnl_unlock(); 486 break; 487 } 488 } 489 bnxt_vf_reps_free(bp); 490 rc = bnxt_hwrm_func_drv_unrgtr(bp); 491 if (rc) { 492 NL_SET_ERR_MSG_MOD(extack, "Failed to deregister"); 493 if (netif_running(bp->dev)) 494 dev_close(bp->dev); 495 rtnl_unlock(); 496 break; 497 } 498 bnxt_cancel_reservations(bp, false); 499 bnxt_free_ctx_mem(bp); 500 kfree(bp->ctx); 501 bp->ctx = NULL; 502 break; 503 } 504 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: { 505 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET) 506 return bnxt_dl_livepatch_activate(bp, extack); 507 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET) { 508 NL_SET_ERR_MSG_MOD(extack, "Device not capable, requires reboot"); 509 return -EOPNOTSUPP; 510 } 511 if (!bnxt_hwrm_reset_permitted(bp)) { 512 NL_SET_ERR_MSG_MOD(extack, 513 "Reset denied by firmware, it may be inhibited by remote driver"); 514 return -EPERM; 515 } 516 rtnl_lock(); 517 if (bp->dev->reg_state == NETREG_UNREGISTERED) { 518 rtnl_unlock(); 519 return -ENODEV; 520 } 521 if (netif_running(bp->dev)) 522 set_bit(BNXT_STATE_FW_ACTIVATE, &bp->state); 523 rc = bnxt_hwrm_firmware_reset(bp->dev, 524 FW_RESET_REQ_EMBEDDED_PROC_TYPE_CHIP, 525 FW_RESET_REQ_SELFRST_STATUS_SELFRSTASAP, 526 FW_RESET_REQ_FLAGS_RESET_GRACEFUL | 527 FW_RESET_REQ_FLAGS_FW_ACTIVATION); 528 if (rc) { 529 NL_SET_ERR_MSG_MOD(extack, "Failed to activate firmware"); 530 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state); 531 rtnl_unlock(); 532 } 533 break; 534 } 535 default: 536 rc = -EOPNOTSUPP; 537 } 538 539 return rc; 540 } 541 542 static int bnxt_dl_reload_up(struct devlink *dl, enum devlink_reload_action action, 543 enum devlink_reload_limit limit, u32 *actions_performed, 544 struct netlink_ext_ack *extack) 545 { 546 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 547 int rc = 0; 548 549 *actions_performed = 0; 550 switch (action) { 551 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: { 552 bnxt_fw_init_one(bp); 553 bnxt_vf_reps_alloc(bp); 554 if (netif_running(bp->dev)) 555 rc = bnxt_open_nic(bp, true, true); 556 bnxt_ulp_start(bp, rc); 557 if (!rc) { 558 bnxt_reenable_sriov(bp); 559 bnxt_ptp_reapply_pps(bp); 560 } 561 break; 562 } 563 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: { 564 unsigned long start = jiffies; 565 unsigned long timeout = start + BNXT_DFLT_FW_RST_MAX_DSECS * HZ / 10; 566 567 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET) 568 break; 569 if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) 570 timeout = start + bp->fw_health->normal_func_wait_dsecs * HZ / 10; 571 if (!netif_running(bp->dev)) 572 NL_SET_ERR_MSG_MOD(extack, 573 "Device is closed, not waiting for reset notice that will never come"); 574 rtnl_unlock(); 575 while (test_bit(BNXT_STATE_FW_ACTIVATE, &bp->state)) { 576 if (time_after(jiffies, timeout)) { 577 NL_SET_ERR_MSG_MOD(extack, "Activation incomplete"); 578 rc = -ETIMEDOUT; 579 break; 580 } 581 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) { 582 NL_SET_ERR_MSG_MOD(extack, "Activation aborted"); 583 rc = -ENODEV; 584 break; 585 } 586 msleep(50); 587 } 588 rtnl_lock(); 589 if (!rc) 590 *actions_performed |= BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT); 591 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state); 592 break; 593 } 594 default: 595 return -EOPNOTSUPP; 596 } 597 598 if (!rc) { 599 bnxt_print_device_info(bp); 600 if (netif_running(bp->dev)) { 601 mutex_lock(&bp->link_lock); 602 bnxt_report_link(bp); 603 mutex_unlock(&bp->link_lock); 604 } 605 *actions_performed |= BIT(action); 606 } else if (netif_running(bp->dev)) { 607 dev_close(bp->dev); 608 } 609 rtnl_unlock(); 610 return rc; 611 } 612 613 static const struct devlink_ops bnxt_dl_ops = { 614 #ifdef CONFIG_BNXT_SRIOV 615 .eswitch_mode_set = bnxt_dl_eswitch_mode_set, 616 .eswitch_mode_get = bnxt_dl_eswitch_mode_get, 617 #endif /* CONFIG_BNXT_SRIOV */ 618 .info_get = bnxt_dl_info_get, 619 .flash_update = bnxt_dl_flash_update, 620 .reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT) | 621 BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE), 622 .reload_limits = BIT(DEVLINK_RELOAD_LIMIT_NO_RESET), 623 .reload_down = bnxt_dl_reload_down, 624 .reload_up = bnxt_dl_reload_up, 625 }; 626 627 static const struct devlink_ops bnxt_vf_dl_ops; 628 629 enum bnxt_dl_param_id { 630 BNXT_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, 631 BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, 632 }; 633 634 static const struct bnxt_dl_nvm_param nvm_params[] = { 635 {DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, NVM_OFF_ENABLE_SRIOV, 636 BNXT_NVM_SHARED_CFG, 1, 1}, 637 {DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, NVM_OFF_IGNORE_ARI, 638 BNXT_NVM_SHARED_CFG, 1, 1}, 639 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, 640 NVM_OFF_MSIX_VEC_PER_PF_MAX, BNXT_NVM_SHARED_CFG, 10, 4}, 641 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, 642 NVM_OFF_MSIX_VEC_PER_PF_MIN, BNXT_NVM_SHARED_CFG, 7, 4}, 643 {BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, NVM_OFF_DIS_GRE_VER_CHECK, 644 BNXT_NVM_SHARED_CFG, 1, 1}, 645 }; 646 647 union bnxt_nvm_data { 648 u8 val8; 649 __le32 val32; 650 }; 651 652 static void bnxt_copy_to_nvm_data(union bnxt_nvm_data *dst, 653 union devlink_param_value *src, 654 int nvm_num_bits, int dl_num_bytes) 655 { 656 u32 val32 = 0; 657 658 if (nvm_num_bits == 1) { 659 dst->val8 = src->vbool; 660 return; 661 } 662 if (dl_num_bytes == 4) 663 val32 = src->vu32; 664 else if (dl_num_bytes == 2) 665 val32 = (u32)src->vu16; 666 else if (dl_num_bytes == 1) 667 val32 = (u32)src->vu8; 668 dst->val32 = cpu_to_le32(val32); 669 } 670 671 static void bnxt_copy_from_nvm_data(union devlink_param_value *dst, 672 union bnxt_nvm_data *src, 673 int nvm_num_bits, int dl_num_bytes) 674 { 675 u32 val32; 676 677 if (nvm_num_bits == 1) { 678 dst->vbool = src->val8; 679 return; 680 } 681 val32 = le32_to_cpu(src->val32); 682 if (dl_num_bytes == 4) 683 dst->vu32 = val32; 684 else if (dl_num_bytes == 2) 685 dst->vu16 = (u16)val32; 686 else if (dl_num_bytes == 1) 687 dst->vu8 = (u8)val32; 688 } 689 690 static int bnxt_hwrm_get_nvm_cfg_ver(struct bnxt *bp, u32 *nvm_cfg_ver) 691 { 692 struct hwrm_nvm_get_variable_input *req; 693 u16 bytes = BNXT_NVM_CFG_VER_BYTES; 694 u16 bits = BNXT_NVM_CFG_VER_BITS; 695 union devlink_param_value ver; 696 union bnxt_nvm_data *data; 697 dma_addr_t data_dma_addr; 698 int rc, i = 2; 699 u16 dim = 1; 700 701 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE); 702 if (rc) 703 return rc; 704 705 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr); 706 if (!data) { 707 rc = -ENOMEM; 708 goto exit; 709 } 710 711 /* earlier devices present as an array of raw bytes */ 712 if (!BNXT_CHIP_P5(bp)) { 713 dim = 0; 714 i = 0; 715 bits *= 3; /* array of 3 version components */ 716 bytes *= 4; /* copy whole word */ 717 } 718 719 hwrm_req_hold(bp, req); 720 req->dest_data_addr = cpu_to_le64(data_dma_addr); 721 req->data_len = cpu_to_le16(bits); 722 req->option_num = cpu_to_le16(NVM_OFF_NVM_CFG_VER); 723 req->dimensions = cpu_to_le16(dim); 724 725 while (i >= 0) { 726 req->index_0 = cpu_to_le16(i--); 727 rc = hwrm_req_send_silent(bp, req); 728 if (rc) 729 goto exit; 730 bnxt_copy_from_nvm_data(&ver, data, bits, bytes); 731 732 if (BNXT_CHIP_P5(bp)) { 733 *nvm_cfg_ver <<= 8; 734 *nvm_cfg_ver |= ver.vu8; 735 } else { 736 *nvm_cfg_ver = ver.vu32; 737 } 738 } 739 740 exit: 741 hwrm_req_drop(bp, req); 742 return rc; 743 } 744 745 static int bnxt_dl_info_put(struct bnxt *bp, struct devlink_info_req *req, 746 enum bnxt_dl_version_type type, const char *key, 747 char *buf) 748 { 749 if (!strlen(buf)) 750 return 0; 751 752 if ((bp->flags & BNXT_FLAG_CHIP_P5) && 753 (!strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_NCSI) || 754 !strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_ROCE))) 755 return 0; 756 757 switch (type) { 758 case BNXT_VERSION_FIXED: 759 return devlink_info_version_fixed_put(req, key, buf); 760 case BNXT_VERSION_RUNNING: 761 return devlink_info_version_running_put(req, key, buf); 762 case BNXT_VERSION_STORED: 763 return devlink_info_version_stored_put(req, key, buf); 764 } 765 return 0; 766 } 767 768 #define BNXT_FW_SRT_PATCH "fw.srt.patch" 769 #define BNXT_FW_CRT_PATCH "fw.crt.patch" 770 771 static int bnxt_dl_livepatch_info_put(struct bnxt *bp, 772 struct devlink_info_req *req, 773 const char *key) 774 { 775 struct hwrm_fw_livepatch_query_input *query; 776 struct hwrm_fw_livepatch_query_output *resp; 777 u16 flags; 778 int rc; 779 780 if (~bp->fw_cap & BNXT_FW_CAP_LIVEPATCH) 781 return 0; 782 783 rc = hwrm_req_init(bp, query, HWRM_FW_LIVEPATCH_QUERY); 784 if (rc) 785 return rc; 786 787 if (!strcmp(key, BNXT_FW_SRT_PATCH)) 788 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_SECURE_FW; 789 else if (!strcmp(key, BNXT_FW_CRT_PATCH)) 790 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_COMMON_FW; 791 else 792 goto exit; 793 794 resp = hwrm_req_hold(bp, query); 795 rc = hwrm_req_send(bp, query); 796 if (rc) 797 goto exit; 798 799 flags = le16_to_cpu(resp->status_flags); 800 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE) { 801 resp->active_ver[sizeof(resp->active_ver) - 1] = '\0'; 802 rc = devlink_info_version_running_put(req, key, resp->active_ver); 803 if (rc) 804 goto exit; 805 } 806 807 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL) { 808 resp->install_ver[sizeof(resp->install_ver) - 1] = '\0'; 809 rc = devlink_info_version_stored_put(req, key, resp->install_ver); 810 if (rc) 811 goto exit; 812 } 813 814 exit: 815 hwrm_req_drop(bp, query); 816 return rc; 817 } 818 819 #define HWRM_FW_VER_STR_LEN 16 820 821 static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req, 822 struct netlink_ext_ack *extack) 823 { 824 struct hwrm_nvm_get_dev_info_output nvm_dev_info; 825 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 826 struct hwrm_ver_get_output *ver_resp; 827 char mgmt_ver[FW_VER_STR_LEN]; 828 char roce_ver[FW_VER_STR_LEN]; 829 char ncsi_ver[FW_VER_STR_LEN]; 830 char buf[32]; 831 u32 ver = 0; 832 int rc; 833 834 rc = devlink_info_driver_name_put(req, DRV_MODULE_NAME); 835 if (rc) 836 return rc; 837 838 if (BNXT_PF(bp) && (bp->flags & BNXT_FLAG_DSN_VALID)) { 839 sprintf(buf, "%02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X", 840 bp->dsn[7], bp->dsn[6], bp->dsn[5], bp->dsn[4], 841 bp->dsn[3], bp->dsn[2], bp->dsn[1], bp->dsn[0]); 842 rc = devlink_info_serial_number_put(req, buf); 843 if (rc) 844 return rc; 845 } 846 847 if (strlen(bp->board_serialno)) { 848 rc = devlink_info_board_serial_number_put(req, bp->board_serialno); 849 if (rc) 850 return rc; 851 } 852 853 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED, 854 DEVLINK_INFO_VERSION_GENERIC_BOARD_ID, 855 bp->board_partno); 856 if (rc) 857 return rc; 858 859 sprintf(buf, "%X", bp->chip_num); 860 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED, 861 DEVLINK_INFO_VERSION_GENERIC_ASIC_ID, buf); 862 if (rc) 863 return rc; 864 865 ver_resp = &bp->ver_resp; 866 sprintf(buf, "%c%d", 'A' + ver_resp->chip_rev, ver_resp->chip_metal); 867 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED, 868 DEVLINK_INFO_VERSION_GENERIC_ASIC_REV, buf); 869 if (rc) 870 return rc; 871 872 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 873 DEVLINK_INFO_VERSION_GENERIC_FW_PSID, 874 bp->nvm_cfg_ver); 875 if (rc) 876 return rc; 877 878 buf[0] = 0; 879 strncat(buf, ver_resp->active_pkg_name, HWRM_FW_VER_STR_LEN); 880 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 881 DEVLINK_INFO_VERSION_GENERIC_FW, buf); 882 if (rc) 883 return rc; 884 885 if (BNXT_PF(bp) && !bnxt_hwrm_get_nvm_cfg_ver(bp, &ver)) { 886 sprintf(buf, "%d.%d.%d", (ver >> 16) & 0xff, (ver >> 8) & 0xff, 887 ver & 0xff); 888 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 889 DEVLINK_INFO_VERSION_GENERIC_FW_PSID, 890 buf); 891 if (rc) 892 return rc; 893 } 894 895 if (ver_resp->flags & VER_GET_RESP_FLAGS_EXT_VER_AVAIL) { 896 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 897 ver_resp->hwrm_fw_major, ver_resp->hwrm_fw_minor, 898 ver_resp->hwrm_fw_build, ver_resp->hwrm_fw_patch); 899 900 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 901 ver_resp->mgmt_fw_major, ver_resp->mgmt_fw_minor, 902 ver_resp->mgmt_fw_build, ver_resp->mgmt_fw_patch); 903 904 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 905 ver_resp->roce_fw_major, ver_resp->roce_fw_minor, 906 ver_resp->roce_fw_build, ver_resp->roce_fw_patch); 907 } else { 908 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 909 ver_resp->hwrm_fw_maj_8b, ver_resp->hwrm_fw_min_8b, 910 ver_resp->hwrm_fw_bld_8b, ver_resp->hwrm_fw_rsvd_8b); 911 912 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 913 ver_resp->mgmt_fw_maj_8b, ver_resp->mgmt_fw_min_8b, 914 ver_resp->mgmt_fw_bld_8b, ver_resp->mgmt_fw_rsvd_8b); 915 916 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 917 ver_resp->roce_fw_maj_8b, ver_resp->roce_fw_min_8b, 918 ver_resp->roce_fw_bld_8b, ver_resp->roce_fw_rsvd_8b); 919 } 920 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 921 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver); 922 if (rc) 923 return rc; 924 925 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 926 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API, 927 bp->hwrm_ver_supp); 928 if (rc) 929 return rc; 930 931 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 932 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver); 933 if (rc) 934 return rc; 935 936 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 937 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver); 938 if (rc) 939 return rc; 940 941 rc = bnxt_hwrm_nvm_get_dev_info(bp, &nvm_dev_info); 942 if (rc || 943 !(nvm_dev_info.flags & NVM_GET_DEV_INFO_RESP_FLAGS_FW_VER_VALID)) { 944 if (!bnxt_get_pkginfo(bp->dev, buf, sizeof(buf))) 945 return bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 946 DEVLINK_INFO_VERSION_GENERIC_FW, 947 buf); 948 return 0; 949 } 950 951 buf[0] = 0; 952 strncat(buf, nvm_dev_info.pkg_name, HWRM_FW_VER_STR_LEN); 953 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 954 DEVLINK_INFO_VERSION_GENERIC_FW, buf); 955 if (rc) 956 return rc; 957 958 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 959 nvm_dev_info.hwrm_fw_major, nvm_dev_info.hwrm_fw_minor, 960 nvm_dev_info.hwrm_fw_build, nvm_dev_info.hwrm_fw_patch); 961 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 962 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver); 963 if (rc) 964 return rc; 965 966 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 967 nvm_dev_info.mgmt_fw_major, nvm_dev_info.mgmt_fw_minor, 968 nvm_dev_info.mgmt_fw_build, nvm_dev_info.mgmt_fw_patch); 969 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 970 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver); 971 if (rc) 972 return rc; 973 974 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 975 nvm_dev_info.roce_fw_major, nvm_dev_info.roce_fw_minor, 976 nvm_dev_info.roce_fw_build, nvm_dev_info.roce_fw_patch); 977 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 978 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver); 979 if (rc) 980 return rc; 981 982 if (BNXT_CHIP_P5(bp)) { 983 rc = bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_SRT_PATCH); 984 if (rc) 985 return rc; 986 } 987 return bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_CRT_PATCH); 988 989 } 990 991 static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg, 992 union devlink_param_value *val) 993 { 994 struct hwrm_nvm_get_variable_input *req = msg; 995 struct bnxt_dl_nvm_param nvm_param; 996 struct hwrm_err_output *resp; 997 union bnxt_nvm_data *data; 998 dma_addr_t data_dma_addr; 999 int idx = 0, rc, i; 1000 1001 /* Get/Set NVM CFG parameter is supported only on PFs */ 1002 if (BNXT_VF(bp)) { 1003 hwrm_req_drop(bp, req); 1004 return -EPERM; 1005 } 1006 1007 for (i = 0; i < ARRAY_SIZE(nvm_params); i++) { 1008 if (nvm_params[i].id == param_id) { 1009 nvm_param = nvm_params[i]; 1010 break; 1011 } 1012 } 1013 1014 if (i == ARRAY_SIZE(nvm_params)) { 1015 hwrm_req_drop(bp, req); 1016 return -EOPNOTSUPP; 1017 } 1018 1019 if (nvm_param.dir_type == BNXT_NVM_PORT_CFG) 1020 idx = bp->pf.port_id; 1021 else if (nvm_param.dir_type == BNXT_NVM_FUNC_CFG) 1022 idx = bp->pf.fw_fid - BNXT_FIRST_PF_FID; 1023 1024 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr); 1025 1026 if (!data) { 1027 hwrm_req_drop(bp, req); 1028 return -ENOMEM; 1029 } 1030 1031 req->dest_data_addr = cpu_to_le64(data_dma_addr); 1032 req->data_len = cpu_to_le16(nvm_param.nvm_num_bits); 1033 req->option_num = cpu_to_le16(nvm_param.offset); 1034 req->index_0 = cpu_to_le16(idx); 1035 if (idx) 1036 req->dimensions = cpu_to_le16(1); 1037 1038 resp = hwrm_req_hold(bp, req); 1039 if (req->req_type == cpu_to_le16(HWRM_NVM_SET_VARIABLE)) { 1040 bnxt_copy_to_nvm_data(data, val, nvm_param.nvm_num_bits, 1041 nvm_param.dl_num_bytes); 1042 rc = hwrm_req_send(bp, msg); 1043 } else { 1044 rc = hwrm_req_send_silent(bp, msg); 1045 if (!rc) { 1046 bnxt_copy_from_nvm_data(val, data, 1047 nvm_param.nvm_num_bits, 1048 nvm_param.dl_num_bytes); 1049 } else { 1050 if (resp->cmd_err == 1051 NVM_GET_VARIABLE_CMD_ERR_CODE_VAR_NOT_EXIST) 1052 rc = -EOPNOTSUPP; 1053 } 1054 } 1055 hwrm_req_drop(bp, req); 1056 if (rc == -EACCES) 1057 netdev_err(bp->dev, "PF does not have admin privileges to modify NVM config\n"); 1058 return rc; 1059 } 1060 1061 static int bnxt_dl_nvm_param_get(struct devlink *dl, u32 id, 1062 struct devlink_param_gset_ctx *ctx) 1063 { 1064 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 1065 struct hwrm_nvm_get_variable_input *req; 1066 int rc; 1067 1068 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE); 1069 if (rc) 1070 return rc; 1071 1072 rc = bnxt_hwrm_nvm_req(bp, id, req, &ctx->val); 1073 if (!rc && id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK) 1074 ctx->val.vbool = !ctx->val.vbool; 1075 1076 return rc; 1077 } 1078 1079 static int bnxt_dl_nvm_param_set(struct devlink *dl, u32 id, 1080 struct devlink_param_gset_ctx *ctx) 1081 { 1082 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 1083 struct hwrm_nvm_set_variable_input *req; 1084 int rc; 1085 1086 rc = hwrm_req_init(bp, req, HWRM_NVM_SET_VARIABLE); 1087 if (rc) 1088 return rc; 1089 1090 if (id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK) 1091 ctx->val.vbool = !ctx->val.vbool; 1092 1093 return bnxt_hwrm_nvm_req(bp, id, req, &ctx->val); 1094 } 1095 1096 static int bnxt_dl_msix_validate(struct devlink *dl, u32 id, 1097 union devlink_param_value val, 1098 struct netlink_ext_ack *extack) 1099 { 1100 int max_val = -1; 1101 1102 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX) 1103 max_val = BNXT_MSIX_VEC_MAX; 1104 1105 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN) 1106 max_val = BNXT_MSIX_VEC_MIN_MAX; 1107 1108 if (val.vu32 > max_val) { 1109 NL_SET_ERR_MSG_MOD(extack, "MSIX value is exceeding the range"); 1110 return -EINVAL; 1111 } 1112 1113 return 0; 1114 } 1115 1116 static int bnxt_remote_dev_reset_get(struct devlink *dl, u32 id, 1117 struct devlink_param_gset_ctx *ctx) 1118 { 1119 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 1120 1121 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF) 1122 return -EOPNOTSUPP; 1123 1124 ctx->val.vbool = bnxt_dl_get_remote_reset(dl); 1125 return 0; 1126 } 1127 1128 static int bnxt_remote_dev_reset_set(struct devlink *dl, u32 id, 1129 struct devlink_param_gset_ctx *ctx) 1130 { 1131 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 1132 int rc; 1133 1134 rc = bnxt_hwrm_remote_dev_reset_set(bp, ctx->val.vbool); 1135 if (rc) 1136 return rc; 1137 1138 bnxt_dl_set_remote_reset(dl, ctx->val.vbool); 1139 return rc; 1140 } 1141 1142 static const struct devlink_param bnxt_dl_params[] = { 1143 DEVLINK_PARAM_GENERIC(ENABLE_SRIOV, 1144 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1145 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1146 NULL), 1147 DEVLINK_PARAM_GENERIC(IGNORE_ARI, 1148 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1149 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1150 NULL), 1151 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MAX, 1152 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1153 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1154 bnxt_dl_msix_validate), 1155 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MIN, 1156 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1157 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1158 bnxt_dl_msix_validate), 1159 DEVLINK_PARAM_DRIVER(BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, 1160 "gre_ver_check", DEVLINK_PARAM_TYPE_BOOL, 1161 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1162 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1163 NULL), 1164 /* keep REMOTE_DEV_RESET last, it is excluded based on caps */ 1165 DEVLINK_PARAM_GENERIC(ENABLE_REMOTE_DEV_RESET, 1166 BIT(DEVLINK_PARAM_CMODE_RUNTIME), 1167 bnxt_remote_dev_reset_get, 1168 bnxt_remote_dev_reset_set, NULL), 1169 }; 1170 1171 static int bnxt_dl_params_register(struct bnxt *bp) 1172 { 1173 int num_params = ARRAY_SIZE(bnxt_dl_params); 1174 int rc; 1175 1176 if (bp->hwrm_spec_code < 0x10600) 1177 return 0; 1178 1179 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF) 1180 num_params--; 1181 1182 rc = devlink_params_register(bp->dl, bnxt_dl_params, num_params); 1183 if (rc) 1184 netdev_warn(bp->dev, "devlink_params_register failed. rc=%d\n", 1185 rc); 1186 return rc; 1187 } 1188 1189 static void bnxt_dl_params_unregister(struct bnxt *bp) 1190 { 1191 int num_params = ARRAY_SIZE(bnxt_dl_params); 1192 1193 if (bp->hwrm_spec_code < 0x10600) 1194 return; 1195 1196 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF) 1197 num_params--; 1198 1199 devlink_params_unregister(bp->dl, bnxt_dl_params, num_params); 1200 } 1201 1202 int bnxt_dl_register(struct bnxt *bp) 1203 { 1204 const struct devlink_ops *devlink_ops; 1205 struct devlink_port_attrs attrs = {}; 1206 struct bnxt_dl *bp_dl; 1207 struct devlink *dl; 1208 int rc; 1209 1210 if (BNXT_PF(bp)) 1211 devlink_ops = &bnxt_dl_ops; 1212 else 1213 devlink_ops = &bnxt_vf_dl_ops; 1214 1215 dl = devlink_alloc(devlink_ops, sizeof(struct bnxt_dl), &bp->pdev->dev); 1216 if (!dl) { 1217 netdev_warn(bp->dev, "devlink_alloc failed\n"); 1218 return -ENOMEM; 1219 } 1220 1221 bp->dl = dl; 1222 bp_dl = devlink_priv(dl); 1223 bp_dl->bp = bp; 1224 bnxt_dl_set_remote_reset(dl, true); 1225 1226 /* Add switchdev eswitch mode setting, if SRIOV supported */ 1227 if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV) && 1228 bp->hwrm_spec_code > 0x10803) 1229 bp->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY; 1230 1231 if (!BNXT_PF(bp)) 1232 goto out; 1233 1234 attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL; 1235 attrs.phys.port_number = bp->pf.port_id; 1236 memcpy(attrs.switch_id.id, bp->dsn, sizeof(bp->dsn)); 1237 attrs.switch_id.id_len = sizeof(bp->dsn); 1238 devlink_port_attrs_set(&bp->dl_port, &attrs); 1239 rc = devlink_port_register(dl, &bp->dl_port, bp->pf.port_id); 1240 if (rc) { 1241 netdev_err(bp->dev, "devlink_port_register failed\n"); 1242 goto err_dl_free; 1243 } 1244 1245 rc = bnxt_dl_params_register(bp); 1246 if (rc) 1247 goto err_dl_port_unreg; 1248 1249 out: 1250 devlink_register(dl); 1251 return 0; 1252 1253 err_dl_port_unreg: 1254 devlink_port_unregister(&bp->dl_port); 1255 err_dl_free: 1256 devlink_free(dl); 1257 return rc; 1258 } 1259 1260 void bnxt_dl_unregister(struct bnxt *bp) 1261 { 1262 struct devlink *dl = bp->dl; 1263 1264 devlink_unregister(dl); 1265 if (BNXT_PF(bp)) { 1266 bnxt_dl_params_unregister(bp); 1267 devlink_port_unregister(&bp->dl_port); 1268 } 1269 devlink_free(dl); 1270 } 1271