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 #include "bnxt_nvm_defs.h" 24 #include "bnxt_ethtool.h" 25 26 static void __bnxt_fw_recover(struct bnxt *bp) 27 { 28 if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state) || 29 test_bit(BNXT_STATE_FW_NON_FATAL_COND, &bp->state)) 30 bnxt_fw_reset(bp); 31 else 32 bnxt_fw_exception(bp); 33 } 34 35 static int 36 bnxt_dl_flash_update(struct devlink *dl, 37 struct devlink_flash_update_params *params, 38 struct netlink_ext_ack *extack) 39 { 40 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 41 int rc; 42 43 if (!BNXT_PF(bp)) { 44 NL_SET_ERR_MSG_MOD(extack, 45 "flash update not supported from a VF"); 46 return -EPERM; 47 } 48 49 devlink_flash_update_status_notify(dl, "Preparing to flash", NULL, 0, 0); 50 rc = bnxt_flash_package_from_fw_obj(bp->dev, params->fw, 0, extack); 51 if (!rc) 52 devlink_flash_update_status_notify(dl, "Flashing done", NULL, 0, 0); 53 else 54 devlink_flash_update_status_notify(dl, "Flashing failed", NULL, 0, 0); 55 return rc; 56 } 57 58 static int bnxt_hwrm_remote_dev_reset_set(struct bnxt *bp, bool remote_reset) 59 { 60 struct hwrm_func_cfg_input *req; 61 int rc; 62 63 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF) 64 return -EOPNOTSUPP; 65 66 rc = hwrm_req_init(bp, req, HWRM_FUNC_CFG); 67 if (rc) 68 return rc; 69 70 req->fid = cpu_to_le16(0xffff); 71 req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_HOT_RESET_IF_SUPPORT); 72 if (remote_reset) 73 req->flags = cpu_to_le32(FUNC_CFG_REQ_FLAGS_HOT_RESET_IF_EN_DIS); 74 75 return hwrm_req_send(bp, req); 76 } 77 78 static char *bnxt_health_severity_str(enum bnxt_health_severity severity) 79 { 80 switch (severity) { 81 case SEVERITY_NORMAL: return "normal"; 82 case SEVERITY_WARNING: return "warning"; 83 case SEVERITY_RECOVERABLE: return "recoverable"; 84 case SEVERITY_FATAL: return "fatal"; 85 default: return "unknown"; 86 } 87 } 88 89 static char *bnxt_health_remedy_str(enum bnxt_health_remedy remedy) 90 { 91 switch (remedy) { 92 case REMEDY_DEVLINK_RECOVER: return "devlink recover"; 93 case REMEDY_POWER_CYCLE_DEVICE: return "device power cycle"; 94 case REMEDY_POWER_CYCLE_HOST: return "host power cycle"; 95 case REMEDY_FW_UPDATE: return "update firmware"; 96 case REMEDY_HW_REPLACE: return "replace hardware"; 97 default: return "unknown"; 98 } 99 } 100 101 static int bnxt_fw_diagnose(struct devlink_health_reporter *reporter, 102 struct devlink_fmsg *fmsg, 103 struct netlink_ext_ack *extack) 104 { 105 struct bnxt *bp = devlink_health_reporter_priv(reporter); 106 struct bnxt_fw_health *h = bp->fw_health; 107 u32 fw_status, fw_resets; 108 int rc; 109 110 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) 111 return devlink_fmsg_string_pair_put(fmsg, "Status", "recovering"); 112 113 if (!h->status_reliable) 114 return devlink_fmsg_string_pair_put(fmsg, "Status", "unknown"); 115 116 mutex_lock(&h->lock); 117 fw_status = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG); 118 if (BNXT_FW_IS_BOOTING(fw_status)) { 119 rc = devlink_fmsg_string_pair_put(fmsg, "Status", "initializing"); 120 if (rc) 121 goto unlock; 122 } else if (h->severity || fw_status != BNXT_FW_STATUS_HEALTHY) { 123 if (!h->severity) { 124 h->severity = SEVERITY_FATAL; 125 h->remedy = REMEDY_POWER_CYCLE_DEVICE; 126 h->diagnoses++; 127 devlink_health_report(h->fw_reporter, 128 "FW error diagnosed", h); 129 } 130 rc = devlink_fmsg_string_pair_put(fmsg, "Status", "error"); 131 if (rc) 132 goto unlock; 133 rc = devlink_fmsg_u32_pair_put(fmsg, "Syndrome", fw_status); 134 if (rc) 135 goto unlock; 136 } else { 137 rc = devlink_fmsg_string_pair_put(fmsg, "Status", "healthy"); 138 if (rc) 139 goto unlock; 140 } 141 142 rc = devlink_fmsg_string_pair_put(fmsg, "Severity", 143 bnxt_health_severity_str(h->severity)); 144 if (rc) 145 goto unlock; 146 147 if (h->severity) { 148 rc = devlink_fmsg_string_pair_put(fmsg, "Remedy", 149 bnxt_health_remedy_str(h->remedy)); 150 if (rc) 151 goto unlock; 152 if (h->remedy == REMEDY_DEVLINK_RECOVER) { 153 rc = devlink_fmsg_string_pair_put(fmsg, "Impact", 154 "traffic+ntuple_cfg"); 155 if (rc) 156 goto unlock; 157 } 158 } 159 160 unlock: 161 mutex_unlock(&h->lock); 162 if (rc || !h->resets_reliable) 163 return rc; 164 165 fw_resets = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG); 166 rc = devlink_fmsg_u32_pair_put(fmsg, "Resets", fw_resets); 167 if (rc) 168 return rc; 169 rc = devlink_fmsg_u32_pair_put(fmsg, "Arrests", h->arrests); 170 if (rc) 171 return rc; 172 rc = devlink_fmsg_u32_pair_put(fmsg, "Survivals", h->survivals); 173 if (rc) 174 return rc; 175 rc = devlink_fmsg_u32_pair_put(fmsg, "Discoveries", h->discoveries); 176 if (rc) 177 return rc; 178 rc = devlink_fmsg_u32_pair_put(fmsg, "Fatalities", h->fatalities); 179 if (rc) 180 return rc; 181 return devlink_fmsg_u32_pair_put(fmsg, "Diagnoses", h->diagnoses); 182 } 183 184 static int bnxt_fw_dump(struct devlink_health_reporter *reporter, 185 struct devlink_fmsg *fmsg, void *priv_ctx, 186 struct netlink_ext_ack *extack) 187 { 188 struct bnxt *bp = devlink_health_reporter_priv(reporter); 189 u32 dump_len; 190 void *data; 191 int rc; 192 193 /* TODO: no firmware dump support in devlink_health_report() context */ 194 if (priv_ctx) 195 return -EOPNOTSUPP; 196 197 dump_len = bnxt_get_coredump_length(bp, BNXT_DUMP_LIVE); 198 if (!dump_len) 199 return -EIO; 200 201 data = vmalloc(dump_len); 202 if (!data) 203 return -ENOMEM; 204 205 rc = bnxt_get_coredump(bp, BNXT_DUMP_LIVE, data, &dump_len); 206 if (!rc) { 207 rc = devlink_fmsg_pair_nest_start(fmsg, "core"); 208 if (rc) 209 goto exit; 210 rc = devlink_fmsg_binary_pair_put(fmsg, "data", data, dump_len); 211 if (rc) 212 goto exit; 213 rc = devlink_fmsg_u32_pair_put(fmsg, "size", dump_len); 214 if (rc) 215 goto exit; 216 rc = devlink_fmsg_pair_nest_end(fmsg); 217 } 218 219 exit: 220 vfree(data); 221 return rc; 222 } 223 224 static int bnxt_fw_recover(struct devlink_health_reporter *reporter, 225 void *priv_ctx, 226 struct netlink_ext_ack *extack) 227 { 228 struct bnxt *bp = devlink_health_reporter_priv(reporter); 229 230 if (bp->fw_health->severity == SEVERITY_FATAL) 231 return -ENODEV; 232 233 set_bit(BNXT_STATE_RECOVER, &bp->state); 234 __bnxt_fw_recover(bp); 235 236 return -EINPROGRESS; 237 } 238 239 static const struct devlink_health_reporter_ops bnxt_dl_fw_reporter_ops = { 240 .name = "fw", 241 .diagnose = bnxt_fw_diagnose, 242 .dump = bnxt_fw_dump, 243 .recover = bnxt_fw_recover, 244 }; 245 246 static struct devlink_health_reporter * 247 __bnxt_dl_reporter_create(struct bnxt *bp, 248 const struct devlink_health_reporter_ops *ops) 249 { 250 struct devlink_health_reporter *reporter; 251 252 reporter = devlink_health_reporter_create(bp->dl, ops, 0, bp); 253 if (IS_ERR(reporter)) { 254 netdev_warn(bp->dev, "Failed to create %s health reporter, rc = %ld\n", 255 ops->name, PTR_ERR(reporter)); 256 return NULL; 257 } 258 259 return reporter; 260 } 261 262 void bnxt_dl_fw_reporters_create(struct bnxt *bp) 263 { 264 struct bnxt_fw_health *fw_health = bp->fw_health; 265 266 if (fw_health && !fw_health->fw_reporter) 267 fw_health->fw_reporter = __bnxt_dl_reporter_create(bp, &bnxt_dl_fw_reporter_ops); 268 } 269 270 void bnxt_dl_fw_reporters_destroy(struct bnxt *bp) 271 { 272 struct bnxt_fw_health *fw_health = bp->fw_health; 273 274 if (fw_health && fw_health->fw_reporter) { 275 devlink_health_reporter_destroy(fw_health->fw_reporter); 276 fw_health->fw_reporter = NULL; 277 } 278 } 279 280 void bnxt_devlink_health_fw_report(struct bnxt *bp) 281 { 282 struct bnxt_fw_health *fw_health = bp->fw_health; 283 int rc; 284 285 if (!fw_health) 286 return; 287 288 if (!fw_health->fw_reporter) { 289 __bnxt_fw_recover(bp); 290 return; 291 } 292 293 mutex_lock(&fw_health->lock); 294 fw_health->severity = SEVERITY_RECOVERABLE; 295 fw_health->remedy = REMEDY_DEVLINK_RECOVER; 296 mutex_unlock(&fw_health->lock); 297 rc = devlink_health_report(fw_health->fw_reporter, "FW error reported", 298 fw_health); 299 if (rc == -ECANCELED) 300 __bnxt_fw_recover(bp); 301 } 302 303 void bnxt_dl_health_fw_status_update(struct bnxt *bp, bool healthy) 304 { 305 struct bnxt_fw_health *fw_health = bp->fw_health; 306 u8 state; 307 308 mutex_lock(&fw_health->lock); 309 if (healthy) { 310 fw_health->severity = SEVERITY_NORMAL; 311 state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY; 312 } else { 313 fw_health->severity = SEVERITY_FATAL; 314 fw_health->remedy = REMEDY_POWER_CYCLE_DEVICE; 315 state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; 316 } 317 mutex_unlock(&fw_health->lock); 318 devlink_health_reporter_state_update(fw_health->fw_reporter, state); 319 } 320 321 void bnxt_dl_health_fw_recovery_done(struct bnxt *bp) 322 { 323 struct bnxt_dl *dl = devlink_priv(bp->dl); 324 325 devlink_health_reporter_recovery_done(bp->fw_health->fw_reporter); 326 bnxt_hwrm_remote_dev_reset_set(bp, dl->remote_reset); 327 } 328 329 static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req, 330 struct netlink_ext_ack *extack); 331 332 static void 333 bnxt_dl_livepatch_report_err(struct bnxt *bp, struct netlink_ext_ack *extack, 334 struct hwrm_fw_livepatch_output *resp) 335 { 336 int err = ((struct hwrm_err_output *)resp)->cmd_err; 337 338 switch (err) { 339 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_OPCODE: 340 netdev_err(bp->dev, "Illegal live patch opcode"); 341 NL_SET_ERR_MSG_MOD(extack, "Invalid opcode"); 342 break; 343 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_SUPPORTED: 344 NL_SET_ERR_MSG_MOD(extack, "Live patch operation not supported"); 345 break; 346 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_INSTALLED: 347 NL_SET_ERR_MSG_MOD(extack, "Live patch not found"); 348 break; 349 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_PATCHED: 350 NL_SET_ERR_MSG_MOD(extack, 351 "Live patch deactivation failed. Firmware not patched."); 352 break; 353 case FW_LIVEPATCH_CMD_ERR_CODE_AUTH_FAIL: 354 NL_SET_ERR_MSG_MOD(extack, "Live patch not authenticated"); 355 break; 356 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_HEADER: 357 NL_SET_ERR_MSG_MOD(extack, "Incompatible live patch"); 358 break; 359 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_SIZE: 360 NL_SET_ERR_MSG_MOD(extack, "Live patch has invalid size"); 361 break; 362 case FW_LIVEPATCH_CMD_ERR_CODE_ALREADY_PATCHED: 363 NL_SET_ERR_MSG_MOD(extack, "Live patch already applied"); 364 break; 365 default: 366 netdev_err(bp->dev, "Unexpected live patch error: %d\n", err); 367 NL_SET_ERR_MSG_MOD(extack, "Failed to activate live patch"); 368 break; 369 } 370 } 371 372 /* Live patch status in NVM */ 373 #define BNXT_LIVEPATCH_NOT_INSTALLED 0 374 #define BNXT_LIVEPATCH_INSTALLED FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL 375 #define BNXT_LIVEPATCH_REMOVED FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE 376 #define BNXT_LIVEPATCH_MASK (FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL | \ 377 FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE) 378 #define BNXT_LIVEPATCH_ACTIVATED BNXT_LIVEPATCH_MASK 379 380 #define BNXT_LIVEPATCH_STATE(flags) ((flags) & BNXT_LIVEPATCH_MASK) 381 382 static int 383 bnxt_dl_livepatch_activate(struct bnxt *bp, struct netlink_ext_ack *extack) 384 { 385 struct hwrm_fw_livepatch_query_output *query_resp; 386 struct hwrm_fw_livepatch_query_input *query_req; 387 struct hwrm_fw_livepatch_output *patch_resp; 388 struct hwrm_fw_livepatch_input *patch_req; 389 u16 flags, live_patch_state; 390 bool activated = false; 391 u32 installed = 0; 392 u8 target; 393 int rc; 394 395 if (~bp->fw_cap & BNXT_FW_CAP_LIVEPATCH) { 396 NL_SET_ERR_MSG_MOD(extack, "Device does not support live patch"); 397 return -EOPNOTSUPP; 398 } 399 400 rc = hwrm_req_init(bp, query_req, HWRM_FW_LIVEPATCH_QUERY); 401 if (rc) 402 return rc; 403 query_resp = hwrm_req_hold(bp, query_req); 404 405 rc = hwrm_req_init(bp, patch_req, HWRM_FW_LIVEPATCH); 406 if (rc) { 407 hwrm_req_drop(bp, query_req); 408 return rc; 409 } 410 patch_req->loadtype = FW_LIVEPATCH_REQ_LOADTYPE_NVM_INSTALL; 411 patch_resp = hwrm_req_hold(bp, patch_req); 412 413 for (target = 1; target <= FW_LIVEPATCH_REQ_FW_TARGET_LAST; target++) { 414 query_req->fw_target = target; 415 rc = hwrm_req_send(bp, query_req); 416 if (rc) { 417 NL_SET_ERR_MSG_MOD(extack, "Failed to query packages"); 418 break; 419 } 420 421 flags = le16_to_cpu(query_resp->status_flags); 422 live_patch_state = BNXT_LIVEPATCH_STATE(flags); 423 424 if (live_patch_state == BNXT_LIVEPATCH_NOT_INSTALLED) 425 continue; 426 427 if (live_patch_state == BNXT_LIVEPATCH_ACTIVATED) { 428 activated = true; 429 continue; 430 } 431 432 if (live_patch_state == BNXT_LIVEPATCH_INSTALLED) 433 patch_req->opcode = FW_LIVEPATCH_REQ_OPCODE_ACTIVATE; 434 else if (live_patch_state == BNXT_LIVEPATCH_REMOVED) 435 patch_req->opcode = FW_LIVEPATCH_REQ_OPCODE_DEACTIVATE; 436 437 patch_req->fw_target = target; 438 rc = hwrm_req_send(bp, patch_req); 439 if (rc) { 440 bnxt_dl_livepatch_report_err(bp, extack, patch_resp); 441 break; 442 } 443 installed++; 444 } 445 446 if (!rc && !installed) { 447 if (activated) { 448 NL_SET_ERR_MSG_MOD(extack, "Live patch already activated"); 449 rc = -EEXIST; 450 } else { 451 NL_SET_ERR_MSG_MOD(extack, "No live patches found"); 452 rc = -ENOENT; 453 } 454 } 455 hwrm_req_drop(bp, query_req); 456 hwrm_req_drop(bp, patch_req); 457 return rc; 458 } 459 460 static int bnxt_dl_reload_down(struct devlink *dl, bool netns_change, 461 enum devlink_reload_action action, 462 enum devlink_reload_limit limit, 463 struct netlink_ext_ack *extack) 464 { 465 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 466 int rc = 0; 467 468 switch (action) { 469 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: { 470 rtnl_lock(); 471 if (bnxt_sriov_cfg(bp)) { 472 NL_SET_ERR_MSG_MOD(extack, 473 "reload is unsupported while VFs are allocated or being configured"); 474 rtnl_unlock(); 475 return -EOPNOTSUPP; 476 } 477 if (bp->dev->reg_state == NETREG_UNREGISTERED) { 478 rtnl_unlock(); 479 return -ENODEV; 480 } 481 bnxt_ulp_stop(bp); 482 if (netif_running(bp->dev)) { 483 rc = bnxt_close_nic(bp, true, true); 484 if (rc) { 485 NL_SET_ERR_MSG_MOD(extack, "Failed to close"); 486 dev_close(bp->dev); 487 rtnl_unlock(); 488 break; 489 } 490 } 491 bnxt_vf_reps_free(bp); 492 rc = bnxt_hwrm_func_drv_unrgtr(bp); 493 if (rc) { 494 NL_SET_ERR_MSG_MOD(extack, "Failed to deregister"); 495 if (netif_running(bp->dev)) 496 dev_close(bp->dev); 497 rtnl_unlock(); 498 break; 499 } 500 bnxt_cancel_reservations(bp, false); 501 bnxt_free_ctx_mem(bp); 502 kfree(bp->ctx); 503 bp->ctx = NULL; 504 break; 505 } 506 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: { 507 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET) 508 return bnxt_dl_livepatch_activate(bp, extack); 509 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET) { 510 NL_SET_ERR_MSG_MOD(extack, "Device not capable, requires reboot"); 511 return -EOPNOTSUPP; 512 } 513 if (!bnxt_hwrm_reset_permitted(bp)) { 514 NL_SET_ERR_MSG_MOD(extack, 515 "Reset denied by firmware, it may be inhibited by remote driver"); 516 return -EPERM; 517 } 518 rtnl_lock(); 519 if (bp->dev->reg_state == NETREG_UNREGISTERED) { 520 rtnl_unlock(); 521 return -ENODEV; 522 } 523 if (netif_running(bp->dev)) 524 set_bit(BNXT_STATE_FW_ACTIVATE, &bp->state); 525 rc = bnxt_hwrm_firmware_reset(bp->dev, 526 FW_RESET_REQ_EMBEDDED_PROC_TYPE_CHIP, 527 FW_RESET_REQ_SELFRST_STATUS_SELFRSTASAP, 528 FW_RESET_REQ_FLAGS_RESET_GRACEFUL | 529 FW_RESET_REQ_FLAGS_FW_ACTIVATION); 530 if (rc) { 531 NL_SET_ERR_MSG_MOD(extack, "Failed to activate firmware"); 532 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state); 533 rtnl_unlock(); 534 } 535 break; 536 } 537 default: 538 rc = -EOPNOTSUPP; 539 } 540 541 return rc; 542 } 543 544 static int bnxt_dl_reload_up(struct devlink *dl, enum devlink_reload_action action, 545 enum devlink_reload_limit limit, u32 *actions_performed, 546 struct netlink_ext_ack *extack) 547 { 548 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 549 int rc = 0; 550 551 *actions_performed = 0; 552 switch (action) { 553 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: { 554 bnxt_fw_init_one(bp); 555 bnxt_vf_reps_alloc(bp); 556 if (netif_running(bp->dev)) 557 rc = bnxt_open_nic(bp, true, true); 558 bnxt_ulp_start(bp, rc); 559 if (!rc) { 560 bnxt_reenable_sriov(bp); 561 bnxt_ptp_reapply_pps(bp); 562 } 563 break; 564 } 565 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: { 566 unsigned long start = jiffies; 567 unsigned long timeout = start + BNXT_DFLT_FW_RST_MAX_DSECS * HZ / 10; 568 569 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET) 570 break; 571 if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) 572 timeout = start + bp->fw_health->normal_func_wait_dsecs * HZ / 10; 573 if (!netif_running(bp->dev)) 574 NL_SET_ERR_MSG_MOD(extack, 575 "Device is closed, not waiting for reset notice that will never come"); 576 rtnl_unlock(); 577 while (test_bit(BNXT_STATE_FW_ACTIVATE, &bp->state)) { 578 if (time_after(jiffies, timeout)) { 579 NL_SET_ERR_MSG_MOD(extack, "Activation incomplete"); 580 rc = -ETIMEDOUT; 581 break; 582 } 583 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) { 584 NL_SET_ERR_MSG_MOD(extack, "Activation aborted"); 585 rc = -ENODEV; 586 break; 587 } 588 msleep(50); 589 } 590 rtnl_lock(); 591 if (!rc) 592 *actions_performed |= BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT); 593 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state); 594 break; 595 } 596 default: 597 return -EOPNOTSUPP; 598 } 599 600 if (!rc) { 601 bnxt_print_device_info(bp); 602 if (netif_running(bp->dev)) { 603 mutex_lock(&bp->link_lock); 604 bnxt_report_link(bp); 605 mutex_unlock(&bp->link_lock); 606 } 607 *actions_performed |= BIT(action); 608 } else if (netif_running(bp->dev)) { 609 dev_close(bp->dev); 610 } 611 rtnl_unlock(); 612 return rc; 613 } 614 615 static bool bnxt_nvm_test(struct bnxt *bp, struct netlink_ext_ack *extack) 616 { 617 u32 datalen; 618 u16 index; 619 u8 *buf; 620 621 if (bnxt_find_nvram_item(bp->dev, BNX_DIR_TYPE_VPD, 622 BNX_DIR_ORDINAL_FIRST, BNX_DIR_EXT_NONE, 623 &index, NULL, &datalen) || !datalen) { 624 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd entry error"); 625 return false; 626 } 627 628 buf = kzalloc(datalen, GFP_KERNEL); 629 if (!buf) { 630 NL_SET_ERR_MSG_MOD(extack, "insufficient memory for nvm test"); 631 return false; 632 } 633 634 if (bnxt_get_nvram_item(bp->dev, index, 0, datalen, buf)) { 635 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd read error"); 636 goto err; 637 } 638 639 if (bnxt_flash_nvram(bp->dev, BNX_DIR_TYPE_VPD, BNX_DIR_ORDINAL_FIRST, 640 BNX_DIR_EXT_NONE, 0, 0, buf, datalen)) { 641 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd write error"); 642 goto err; 643 } 644 645 return true; 646 647 err: 648 kfree(buf); 649 return false; 650 } 651 652 static bool bnxt_dl_selftest_check(struct devlink *dl, unsigned int id, 653 struct netlink_ext_ack *extack) 654 { 655 return id == DEVLINK_ATTR_SELFTEST_ID_FLASH; 656 } 657 658 static enum devlink_selftest_status bnxt_dl_selftest_run(struct devlink *dl, 659 unsigned int id, 660 struct netlink_ext_ack *extack) 661 { 662 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 663 664 if (id == DEVLINK_ATTR_SELFTEST_ID_FLASH) 665 return bnxt_nvm_test(bp, extack) ? 666 DEVLINK_SELFTEST_STATUS_PASS : 667 DEVLINK_SELFTEST_STATUS_FAIL; 668 669 return DEVLINK_SELFTEST_STATUS_SKIP; 670 } 671 672 static const struct devlink_ops bnxt_dl_ops = { 673 #ifdef CONFIG_BNXT_SRIOV 674 .eswitch_mode_set = bnxt_dl_eswitch_mode_set, 675 .eswitch_mode_get = bnxt_dl_eswitch_mode_get, 676 #endif /* CONFIG_BNXT_SRIOV */ 677 .info_get = bnxt_dl_info_get, 678 .flash_update = bnxt_dl_flash_update, 679 .reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT) | 680 BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE), 681 .reload_limits = BIT(DEVLINK_RELOAD_LIMIT_NO_RESET), 682 .reload_down = bnxt_dl_reload_down, 683 .reload_up = bnxt_dl_reload_up, 684 .selftest_check = bnxt_dl_selftest_check, 685 .selftest_run = bnxt_dl_selftest_run, 686 }; 687 688 static const struct devlink_ops bnxt_vf_dl_ops; 689 690 enum bnxt_dl_param_id { 691 BNXT_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, 692 BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, 693 }; 694 695 static const struct bnxt_dl_nvm_param nvm_params[] = { 696 {DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, NVM_OFF_ENABLE_SRIOV, 697 BNXT_NVM_SHARED_CFG, 1, 1}, 698 {DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, NVM_OFF_IGNORE_ARI, 699 BNXT_NVM_SHARED_CFG, 1, 1}, 700 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, 701 NVM_OFF_MSIX_VEC_PER_PF_MAX, BNXT_NVM_SHARED_CFG, 10, 4}, 702 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, 703 NVM_OFF_MSIX_VEC_PER_PF_MIN, BNXT_NVM_SHARED_CFG, 7, 4}, 704 {BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, NVM_OFF_DIS_GRE_VER_CHECK, 705 BNXT_NVM_SHARED_CFG, 1, 1}, 706 }; 707 708 union bnxt_nvm_data { 709 u8 val8; 710 __le32 val32; 711 }; 712 713 static void bnxt_copy_to_nvm_data(union bnxt_nvm_data *dst, 714 union devlink_param_value *src, 715 int nvm_num_bits, int dl_num_bytes) 716 { 717 u32 val32 = 0; 718 719 if (nvm_num_bits == 1) { 720 dst->val8 = src->vbool; 721 return; 722 } 723 if (dl_num_bytes == 4) 724 val32 = src->vu32; 725 else if (dl_num_bytes == 2) 726 val32 = (u32)src->vu16; 727 else if (dl_num_bytes == 1) 728 val32 = (u32)src->vu8; 729 dst->val32 = cpu_to_le32(val32); 730 } 731 732 static void bnxt_copy_from_nvm_data(union devlink_param_value *dst, 733 union bnxt_nvm_data *src, 734 int nvm_num_bits, int dl_num_bytes) 735 { 736 u32 val32; 737 738 if (nvm_num_bits == 1) { 739 dst->vbool = src->val8; 740 return; 741 } 742 val32 = le32_to_cpu(src->val32); 743 if (dl_num_bytes == 4) 744 dst->vu32 = val32; 745 else if (dl_num_bytes == 2) 746 dst->vu16 = (u16)val32; 747 else if (dl_num_bytes == 1) 748 dst->vu8 = (u8)val32; 749 } 750 751 static int bnxt_hwrm_get_nvm_cfg_ver(struct bnxt *bp, u32 *nvm_cfg_ver) 752 { 753 struct hwrm_nvm_get_variable_input *req; 754 u16 bytes = BNXT_NVM_CFG_VER_BYTES; 755 u16 bits = BNXT_NVM_CFG_VER_BITS; 756 union devlink_param_value ver; 757 union bnxt_nvm_data *data; 758 dma_addr_t data_dma_addr; 759 int rc, i = 2; 760 u16 dim = 1; 761 762 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE); 763 if (rc) 764 return rc; 765 766 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr); 767 if (!data) { 768 rc = -ENOMEM; 769 goto exit; 770 } 771 772 /* earlier devices present as an array of raw bytes */ 773 if (!BNXT_CHIP_P5(bp)) { 774 dim = 0; 775 i = 0; 776 bits *= 3; /* array of 3 version components */ 777 bytes *= 4; /* copy whole word */ 778 } 779 780 hwrm_req_hold(bp, req); 781 req->dest_data_addr = cpu_to_le64(data_dma_addr); 782 req->data_len = cpu_to_le16(bits); 783 req->option_num = cpu_to_le16(NVM_OFF_NVM_CFG_VER); 784 req->dimensions = cpu_to_le16(dim); 785 786 while (i >= 0) { 787 req->index_0 = cpu_to_le16(i--); 788 rc = hwrm_req_send_silent(bp, req); 789 if (rc) 790 goto exit; 791 bnxt_copy_from_nvm_data(&ver, data, bits, bytes); 792 793 if (BNXT_CHIP_P5(bp)) { 794 *nvm_cfg_ver <<= 8; 795 *nvm_cfg_ver |= ver.vu8; 796 } else { 797 *nvm_cfg_ver = ver.vu32; 798 } 799 } 800 801 exit: 802 hwrm_req_drop(bp, req); 803 return rc; 804 } 805 806 static int bnxt_dl_info_put(struct bnxt *bp, struct devlink_info_req *req, 807 enum bnxt_dl_version_type type, const char *key, 808 char *buf) 809 { 810 if (!strlen(buf)) 811 return 0; 812 813 if ((bp->flags & BNXT_FLAG_CHIP_P5) && 814 (!strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_NCSI) || 815 !strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_ROCE))) 816 return 0; 817 818 switch (type) { 819 case BNXT_VERSION_FIXED: 820 return devlink_info_version_fixed_put(req, key, buf); 821 case BNXT_VERSION_RUNNING: 822 return devlink_info_version_running_put(req, key, buf); 823 case BNXT_VERSION_STORED: 824 return devlink_info_version_stored_put(req, key, buf); 825 } 826 return 0; 827 } 828 829 #define BNXT_FW_SRT_PATCH "fw.srt.patch" 830 #define BNXT_FW_CRT_PATCH "fw.crt.patch" 831 832 static int bnxt_dl_livepatch_info_put(struct bnxt *bp, 833 struct devlink_info_req *req, 834 const char *key) 835 { 836 struct hwrm_fw_livepatch_query_input *query; 837 struct hwrm_fw_livepatch_query_output *resp; 838 u16 flags; 839 int rc; 840 841 if (~bp->fw_cap & BNXT_FW_CAP_LIVEPATCH) 842 return 0; 843 844 rc = hwrm_req_init(bp, query, HWRM_FW_LIVEPATCH_QUERY); 845 if (rc) 846 return rc; 847 848 if (!strcmp(key, BNXT_FW_SRT_PATCH)) 849 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_SECURE_FW; 850 else if (!strcmp(key, BNXT_FW_CRT_PATCH)) 851 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_COMMON_FW; 852 else 853 goto exit; 854 855 resp = hwrm_req_hold(bp, query); 856 rc = hwrm_req_send(bp, query); 857 if (rc) 858 goto exit; 859 860 flags = le16_to_cpu(resp->status_flags); 861 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE) { 862 resp->active_ver[sizeof(resp->active_ver) - 1] = '\0'; 863 rc = devlink_info_version_running_put(req, key, resp->active_ver); 864 if (rc) 865 goto exit; 866 } 867 868 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL) { 869 resp->install_ver[sizeof(resp->install_ver) - 1] = '\0'; 870 rc = devlink_info_version_stored_put(req, key, resp->install_ver); 871 if (rc) 872 goto exit; 873 } 874 875 exit: 876 hwrm_req_drop(bp, query); 877 return rc; 878 } 879 880 #define HWRM_FW_VER_STR_LEN 16 881 882 static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req, 883 struct netlink_ext_ack *extack) 884 { 885 struct hwrm_nvm_get_dev_info_output nvm_dev_info; 886 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 887 struct hwrm_ver_get_output *ver_resp; 888 char mgmt_ver[FW_VER_STR_LEN]; 889 char roce_ver[FW_VER_STR_LEN]; 890 char ncsi_ver[FW_VER_STR_LEN]; 891 char buf[32]; 892 u32 ver = 0; 893 int rc; 894 895 rc = devlink_info_driver_name_put(req, DRV_MODULE_NAME); 896 if (rc) 897 return rc; 898 899 if (BNXT_PF(bp) && (bp->flags & BNXT_FLAG_DSN_VALID)) { 900 sprintf(buf, "%02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X", 901 bp->dsn[7], bp->dsn[6], bp->dsn[5], bp->dsn[4], 902 bp->dsn[3], bp->dsn[2], bp->dsn[1], bp->dsn[0]); 903 rc = devlink_info_serial_number_put(req, buf); 904 if (rc) 905 return rc; 906 } 907 908 if (strlen(bp->board_serialno)) { 909 rc = devlink_info_board_serial_number_put(req, bp->board_serialno); 910 if (rc) 911 return rc; 912 } 913 914 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED, 915 DEVLINK_INFO_VERSION_GENERIC_BOARD_ID, 916 bp->board_partno); 917 if (rc) 918 return rc; 919 920 sprintf(buf, "%X", bp->chip_num); 921 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED, 922 DEVLINK_INFO_VERSION_GENERIC_ASIC_ID, buf); 923 if (rc) 924 return rc; 925 926 ver_resp = &bp->ver_resp; 927 sprintf(buf, "%c%d", 'A' + ver_resp->chip_rev, ver_resp->chip_metal); 928 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED, 929 DEVLINK_INFO_VERSION_GENERIC_ASIC_REV, buf); 930 if (rc) 931 return rc; 932 933 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 934 DEVLINK_INFO_VERSION_GENERIC_FW_PSID, 935 bp->nvm_cfg_ver); 936 if (rc) 937 return rc; 938 939 buf[0] = 0; 940 strncat(buf, ver_resp->active_pkg_name, HWRM_FW_VER_STR_LEN); 941 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 942 DEVLINK_INFO_VERSION_GENERIC_FW, buf); 943 if (rc) 944 return rc; 945 946 if (BNXT_PF(bp) && !bnxt_hwrm_get_nvm_cfg_ver(bp, &ver)) { 947 sprintf(buf, "%d.%d.%d", (ver >> 16) & 0xff, (ver >> 8) & 0xff, 948 ver & 0xff); 949 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 950 DEVLINK_INFO_VERSION_GENERIC_FW_PSID, 951 buf); 952 if (rc) 953 return rc; 954 } 955 956 if (ver_resp->flags & VER_GET_RESP_FLAGS_EXT_VER_AVAIL) { 957 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 958 ver_resp->hwrm_fw_major, ver_resp->hwrm_fw_minor, 959 ver_resp->hwrm_fw_build, ver_resp->hwrm_fw_patch); 960 961 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 962 ver_resp->mgmt_fw_major, ver_resp->mgmt_fw_minor, 963 ver_resp->mgmt_fw_build, ver_resp->mgmt_fw_patch); 964 965 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 966 ver_resp->roce_fw_major, ver_resp->roce_fw_minor, 967 ver_resp->roce_fw_build, ver_resp->roce_fw_patch); 968 } else { 969 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 970 ver_resp->hwrm_fw_maj_8b, ver_resp->hwrm_fw_min_8b, 971 ver_resp->hwrm_fw_bld_8b, ver_resp->hwrm_fw_rsvd_8b); 972 973 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 974 ver_resp->mgmt_fw_maj_8b, ver_resp->mgmt_fw_min_8b, 975 ver_resp->mgmt_fw_bld_8b, ver_resp->mgmt_fw_rsvd_8b); 976 977 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 978 ver_resp->roce_fw_maj_8b, ver_resp->roce_fw_min_8b, 979 ver_resp->roce_fw_bld_8b, ver_resp->roce_fw_rsvd_8b); 980 } 981 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 982 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver); 983 if (rc) 984 return rc; 985 986 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 987 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API, 988 bp->hwrm_ver_supp); 989 if (rc) 990 return rc; 991 992 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 993 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver); 994 if (rc) 995 return rc; 996 997 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 998 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver); 999 if (rc) 1000 return rc; 1001 1002 rc = bnxt_hwrm_nvm_get_dev_info(bp, &nvm_dev_info); 1003 if (rc || 1004 !(nvm_dev_info.flags & NVM_GET_DEV_INFO_RESP_FLAGS_FW_VER_VALID)) { 1005 if (!bnxt_get_pkginfo(bp->dev, buf, sizeof(buf))) 1006 return bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 1007 DEVLINK_INFO_VERSION_GENERIC_FW, 1008 buf); 1009 return 0; 1010 } 1011 1012 buf[0] = 0; 1013 strncat(buf, nvm_dev_info.pkg_name, HWRM_FW_VER_STR_LEN); 1014 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 1015 DEVLINK_INFO_VERSION_GENERIC_FW, buf); 1016 if (rc) 1017 return rc; 1018 1019 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 1020 nvm_dev_info.hwrm_fw_major, nvm_dev_info.hwrm_fw_minor, 1021 nvm_dev_info.hwrm_fw_build, nvm_dev_info.hwrm_fw_patch); 1022 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 1023 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver); 1024 if (rc) 1025 return rc; 1026 1027 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 1028 nvm_dev_info.mgmt_fw_major, nvm_dev_info.mgmt_fw_minor, 1029 nvm_dev_info.mgmt_fw_build, nvm_dev_info.mgmt_fw_patch); 1030 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 1031 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver); 1032 if (rc) 1033 return rc; 1034 1035 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 1036 nvm_dev_info.roce_fw_major, nvm_dev_info.roce_fw_minor, 1037 nvm_dev_info.roce_fw_build, nvm_dev_info.roce_fw_patch); 1038 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 1039 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver); 1040 if (rc) 1041 return rc; 1042 1043 if (BNXT_CHIP_P5(bp)) { 1044 rc = bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_SRT_PATCH); 1045 if (rc) 1046 return rc; 1047 } 1048 return bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_CRT_PATCH); 1049 1050 } 1051 1052 static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg, 1053 union devlink_param_value *val) 1054 { 1055 struct hwrm_nvm_get_variable_input *req = msg; 1056 struct bnxt_dl_nvm_param nvm_param; 1057 struct hwrm_err_output *resp; 1058 union bnxt_nvm_data *data; 1059 dma_addr_t data_dma_addr; 1060 int idx = 0, rc, i; 1061 1062 /* Get/Set NVM CFG parameter is supported only on PFs */ 1063 if (BNXT_VF(bp)) { 1064 hwrm_req_drop(bp, req); 1065 return -EPERM; 1066 } 1067 1068 for (i = 0; i < ARRAY_SIZE(nvm_params); i++) { 1069 if (nvm_params[i].id == param_id) { 1070 nvm_param = nvm_params[i]; 1071 break; 1072 } 1073 } 1074 1075 if (i == ARRAY_SIZE(nvm_params)) { 1076 hwrm_req_drop(bp, req); 1077 return -EOPNOTSUPP; 1078 } 1079 1080 if (nvm_param.dir_type == BNXT_NVM_PORT_CFG) 1081 idx = bp->pf.port_id; 1082 else if (nvm_param.dir_type == BNXT_NVM_FUNC_CFG) 1083 idx = bp->pf.fw_fid - BNXT_FIRST_PF_FID; 1084 1085 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr); 1086 1087 if (!data) { 1088 hwrm_req_drop(bp, req); 1089 return -ENOMEM; 1090 } 1091 1092 req->dest_data_addr = cpu_to_le64(data_dma_addr); 1093 req->data_len = cpu_to_le16(nvm_param.nvm_num_bits); 1094 req->option_num = cpu_to_le16(nvm_param.offset); 1095 req->index_0 = cpu_to_le16(idx); 1096 if (idx) 1097 req->dimensions = cpu_to_le16(1); 1098 1099 resp = hwrm_req_hold(bp, req); 1100 if (req->req_type == cpu_to_le16(HWRM_NVM_SET_VARIABLE)) { 1101 bnxt_copy_to_nvm_data(data, val, nvm_param.nvm_num_bits, 1102 nvm_param.dl_num_bytes); 1103 rc = hwrm_req_send(bp, msg); 1104 } else { 1105 rc = hwrm_req_send_silent(bp, msg); 1106 if (!rc) { 1107 bnxt_copy_from_nvm_data(val, data, 1108 nvm_param.nvm_num_bits, 1109 nvm_param.dl_num_bytes); 1110 } else { 1111 if (resp->cmd_err == 1112 NVM_GET_VARIABLE_CMD_ERR_CODE_VAR_NOT_EXIST) 1113 rc = -EOPNOTSUPP; 1114 } 1115 } 1116 hwrm_req_drop(bp, req); 1117 if (rc == -EACCES) 1118 netdev_err(bp->dev, "PF does not have admin privileges to modify NVM config\n"); 1119 return rc; 1120 } 1121 1122 static int bnxt_dl_nvm_param_get(struct devlink *dl, u32 id, 1123 struct devlink_param_gset_ctx *ctx) 1124 { 1125 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 1126 struct hwrm_nvm_get_variable_input *req; 1127 int rc; 1128 1129 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE); 1130 if (rc) 1131 return rc; 1132 1133 rc = bnxt_hwrm_nvm_req(bp, id, req, &ctx->val); 1134 if (!rc && id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK) 1135 ctx->val.vbool = !ctx->val.vbool; 1136 1137 return rc; 1138 } 1139 1140 static int bnxt_dl_nvm_param_set(struct devlink *dl, u32 id, 1141 struct devlink_param_gset_ctx *ctx) 1142 { 1143 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 1144 struct hwrm_nvm_set_variable_input *req; 1145 int rc; 1146 1147 rc = hwrm_req_init(bp, req, HWRM_NVM_SET_VARIABLE); 1148 if (rc) 1149 return rc; 1150 1151 if (id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK) 1152 ctx->val.vbool = !ctx->val.vbool; 1153 1154 return bnxt_hwrm_nvm_req(bp, id, req, &ctx->val); 1155 } 1156 1157 static int bnxt_dl_msix_validate(struct devlink *dl, u32 id, 1158 union devlink_param_value val, 1159 struct netlink_ext_ack *extack) 1160 { 1161 int max_val = -1; 1162 1163 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX) 1164 max_val = BNXT_MSIX_VEC_MAX; 1165 1166 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN) 1167 max_val = BNXT_MSIX_VEC_MIN_MAX; 1168 1169 if (val.vu32 > max_val) { 1170 NL_SET_ERR_MSG_MOD(extack, "MSIX value is exceeding the range"); 1171 return -EINVAL; 1172 } 1173 1174 return 0; 1175 } 1176 1177 static int bnxt_remote_dev_reset_get(struct devlink *dl, u32 id, 1178 struct devlink_param_gset_ctx *ctx) 1179 { 1180 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 1181 1182 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF) 1183 return -EOPNOTSUPP; 1184 1185 ctx->val.vbool = bnxt_dl_get_remote_reset(dl); 1186 return 0; 1187 } 1188 1189 static int bnxt_remote_dev_reset_set(struct devlink *dl, u32 id, 1190 struct devlink_param_gset_ctx *ctx) 1191 { 1192 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 1193 int rc; 1194 1195 rc = bnxt_hwrm_remote_dev_reset_set(bp, ctx->val.vbool); 1196 if (rc) 1197 return rc; 1198 1199 bnxt_dl_set_remote_reset(dl, ctx->val.vbool); 1200 return rc; 1201 } 1202 1203 static const struct devlink_param bnxt_dl_params[] = { 1204 DEVLINK_PARAM_GENERIC(ENABLE_SRIOV, 1205 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1206 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1207 NULL), 1208 DEVLINK_PARAM_GENERIC(IGNORE_ARI, 1209 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1210 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1211 NULL), 1212 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MAX, 1213 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1214 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1215 bnxt_dl_msix_validate), 1216 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MIN, 1217 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1218 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1219 bnxt_dl_msix_validate), 1220 DEVLINK_PARAM_DRIVER(BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, 1221 "gre_ver_check", DEVLINK_PARAM_TYPE_BOOL, 1222 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1223 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1224 NULL), 1225 /* keep REMOTE_DEV_RESET last, it is excluded based on caps */ 1226 DEVLINK_PARAM_GENERIC(ENABLE_REMOTE_DEV_RESET, 1227 BIT(DEVLINK_PARAM_CMODE_RUNTIME), 1228 bnxt_remote_dev_reset_get, 1229 bnxt_remote_dev_reset_set, NULL), 1230 }; 1231 1232 static int bnxt_dl_params_register(struct bnxt *bp) 1233 { 1234 int num_params = ARRAY_SIZE(bnxt_dl_params); 1235 int rc; 1236 1237 if (bp->hwrm_spec_code < 0x10600) 1238 return 0; 1239 1240 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF) 1241 num_params--; 1242 1243 rc = devlink_params_register(bp->dl, bnxt_dl_params, num_params); 1244 if (rc) 1245 netdev_warn(bp->dev, "devlink_params_register failed. rc=%d\n", 1246 rc); 1247 return rc; 1248 } 1249 1250 static void bnxt_dl_params_unregister(struct bnxt *bp) 1251 { 1252 int num_params = ARRAY_SIZE(bnxt_dl_params); 1253 1254 if (bp->hwrm_spec_code < 0x10600) 1255 return; 1256 1257 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF) 1258 num_params--; 1259 1260 devlink_params_unregister(bp->dl, bnxt_dl_params, num_params); 1261 } 1262 1263 int bnxt_dl_register(struct bnxt *bp) 1264 { 1265 const struct devlink_ops *devlink_ops; 1266 struct devlink_port_attrs attrs = {}; 1267 struct bnxt_dl *bp_dl; 1268 struct devlink *dl; 1269 int rc; 1270 1271 if (BNXT_PF(bp)) 1272 devlink_ops = &bnxt_dl_ops; 1273 else 1274 devlink_ops = &bnxt_vf_dl_ops; 1275 1276 dl = devlink_alloc(devlink_ops, sizeof(struct bnxt_dl), &bp->pdev->dev); 1277 if (!dl) { 1278 netdev_warn(bp->dev, "devlink_alloc failed\n"); 1279 return -ENOMEM; 1280 } 1281 1282 bp->dl = dl; 1283 bp_dl = devlink_priv(dl); 1284 bp_dl->bp = bp; 1285 bnxt_dl_set_remote_reset(dl, true); 1286 1287 /* Add switchdev eswitch mode setting, if SRIOV supported */ 1288 if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV) && 1289 bp->hwrm_spec_code > 0x10803) 1290 bp->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY; 1291 1292 if (!BNXT_PF(bp)) 1293 goto out; 1294 1295 attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL; 1296 attrs.phys.port_number = bp->pf.port_id; 1297 memcpy(attrs.switch_id.id, bp->dsn, sizeof(bp->dsn)); 1298 attrs.switch_id.id_len = sizeof(bp->dsn); 1299 devlink_port_attrs_set(&bp->dl_port, &attrs); 1300 rc = devlink_port_register(dl, &bp->dl_port, bp->pf.port_id); 1301 if (rc) { 1302 netdev_err(bp->dev, "devlink_port_register failed\n"); 1303 goto err_dl_free; 1304 } 1305 1306 rc = bnxt_dl_params_register(bp); 1307 if (rc) 1308 goto err_dl_port_unreg; 1309 1310 out: 1311 devlink_register(dl); 1312 return 0; 1313 1314 err_dl_port_unreg: 1315 devlink_port_unregister(&bp->dl_port); 1316 err_dl_free: 1317 devlink_free(dl); 1318 return rc; 1319 } 1320 1321 void bnxt_dl_unregister(struct bnxt *bp) 1322 { 1323 struct devlink *dl = bp->dl; 1324 1325 devlink_unregister(dl); 1326 if (BNXT_PF(bp)) { 1327 bnxt_dl_params_unregister(bp); 1328 devlink_port_unregister(&bp->dl_port); 1329 } 1330 devlink_free(dl); 1331 } 1332