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