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 = bnxt_hwrm_func_cfg_short_req_init(bp, &req); 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; 107 108 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) { 109 devlink_fmsg_string_pair_put(fmsg, "Status", "recovering"); 110 return 0; 111 } 112 113 if (!h->status_reliable) { 114 devlink_fmsg_string_pair_put(fmsg, "Status", "unknown"); 115 return 0; 116 } 117 118 mutex_lock(&h->lock); 119 fw_status = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG); 120 if (BNXT_FW_IS_BOOTING(fw_status)) { 121 devlink_fmsg_string_pair_put(fmsg, "Status", "initializing"); 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 devlink_fmsg_string_pair_put(fmsg, "Status", "error"); 131 devlink_fmsg_u32_pair_put(fmsg, "Syndrome", fw_status); 132 } else { 133 devlink_fmsg_string_pair_put(fmsg, "Status", "healthy"); 134 } 135 136 devlink_fmsg_string_pair_put(fmsg, "Severity", 137 bnxt_health_severity_str(h->severity)); 138 139 if (h->severity) { 140 devlink_fmsg_string_pair_put(fmsg, "Remedy", 141 bnxt_health_remedy_str(h->remedy)); 142 if (h->remedy == REMEDY_DEVLINK_RECOVER) 143 devlink_fmsg_string_pair_put(fmsg, "Impact", 144 "traffic+ntuple_cfg"); 145 } 146 147 mutex_unlock(&h->lock); 148 if (!h->resets_reliable) 149 return 0; 150 151 fw_resets = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG); 152 devlink_fmsg_u32_pair_put(fmsg, "Resets", fw_resets); 153 devlink_fmsg_u32_pair_put(fmsg, "Arrests", h->arrests); 154 devlink_fmsg_u32_pair_put(fmsg, "Survivals", h->survivals); 155 devlink_fmsg_u32_pair_put(fmsg, "Discoveries", h->discoveries); 156 devlink_fmsg_u32_pair_put(fmsg, "Fatalities", h->fatalities); 157 devlink_fmsg_u32_pair_put(fmsg, "Diagnoses", h->diagnoses); 158 return 0; 159 } 160 161 static int bnxt_fw_dump(struct devlink_health_reporter *reporter, 162 struct devlink_fmsg *fmsg, void *priv_ctx, 163 struct netlink_ext_ack *extack) 164 { 165 struct bnxt *bp = devlink_health_reporter_priv(reporter); 166 u32 dump_len; 167 void *data; 168 int rc; 169 170 /* TODO: no firmware dump support in devlink_health_report() context */ 171 if (priv_ctx) 172 return -EOPNOTSUPP; 173 174 dump_len = bnxt_get_coredump_length(bp, BNXT_DUMP_LIVE); 175 if (!dump_len) 176 return -EIO; 177 178 data = vmalloc(dump_len); 179 if (!data) 180 return -ENOMEM; 181 182 rc = bnxt_get_coredump(bp, BNXT_DUMP_LIVE, data, &dump_len); 183 if (!rc) { 184 devlink_fmsg_pair_nest_start(fmsg, "core"); 185 devlink_fmsg_binary_pair_put(fmsg, "data", data, dump_len); 186 devlink_fmsg_u32_pair_put(fmsg, "size", dump_len); 187 devlink_fmsg_pair_nest_end(fmsg); 188 } 189 190 vfree(data); 191 return rc; 192 } 193 194 static int bnxt_fw_recover(struct devlink_health_reporter *reporter, 195 void *priv_ctx, 196 struct netlink_ext_ack *extack) 197 { 198 struct bnxt *bp = devlink_health_reporter_priv(reporter); 199 200 if (bp->fw_health->severity == SEVERITY_FATAL) 201 return -ENODEV; 202 203 set_bit(BNXT_STATE_RECOVER, &bp->state); 204 __bnxt_fw_recover(bp); 205 206 return -EINPROGRESS; 207 } 208 209 static const struct devlink_health_reporter_ops bnxt_dl_fw_reporter_ops = { 210 .name = "fw", 211 .diagnose = bnxt_fw_diagnose, 212 .dump = bnxt_fw_dump, 213 .recover = bnxt_fw_recover, 214 }; 215 216 static struct devlink_health_reporter * 217 __bnxt_dl_reporter_create(struct bnxt *bp, 218 const struct devlink_health_reporter_ops *ops) 219 { 220 struct devlink_health_reporter *reporter; 221 222 reporter = devlink_health_reporter_create(bp->dl, ops, 0, bp); 223 if (IS_ERR(reporter)) { 224 netdev_warn(bp->dev, "Failed to create %s health reporter, rc = %ld\n", 225 ops->name, PTR_ERR(reporter)); 226 return NULL; 227 } 228 229 return reporter; 230 } 231 232 void bnxt_dl_fw_reporters_create(struct bnxt *bp) 233 { 234 struct bnxt_fw_health *fw_health = bp->fw_health; 235 236 if (fw_health && !fw_health->fw_reporter) 237 fw_health->fw_reporter = __bnxt_dl_reporter_create(bp, &bnxt_dl_fw_reporter_ops); 238 } 239 240 void bnxt_dl_fw_reporters_destroy(struct bnxt *bp) 241 { 242 struct bnxt_fw_health *fw_health = bp->fw_health; 243 244 if (fw_health && fw_health->fw_reporter) { 245 devlink_health_reporter_destroy(fw_health->fw_reporter); 246 fw_health->fw_reporter = NULL; 247 } 248 } 249 250 void bnxt_devlink_health_fw_report(struct bnxt *bp) 251 { 252 struct bnxt_fw_health *fw_health = bp->fw_health; 253 int rc; 254 255 if (!fw_health) 256 return; 257 258 if (!fw_health->fw_reporter) { 259 __bnxt_fw_recover(bp); 260 return; 261 } 262 263 mutex_lock(&fw_health->lock); 264 fw_health->severity = SEVERITY_RECOVERABLE; 265 fw_health->remedy = REMEDY_DEVLINK_RECOVER; 266 mutex_unlock(&fw_health->lock); 267 rc = devlink_health_report(fw_health->fw_reporter, "FW error reported", 268 fw_health); 269 if (rc == -ECANCELED) 270 __bnxt_fw_recover(bp); 271 } 272 273 void bnxt_dl_health_fw_status_update(struct bnxt *bp, bool healthy) 274 { 275 struct bnxt_fw_health *fw_health = bp->fw_health; 276 u8 state; 277 278 mutex_lock(&fw_health->lock); 279 if (healthy) { 280 fw_health->severity = SEVERITY_NORMAL; 281 state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY; 282 } else { 283 fw_health->severity = SEVERITY_FATAL; 284 fw_health->remedy = REMEDY_POWER_CYCLE_DEVICE; 285 state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; 286 } 287 mutex_unlock(&fw_health->lock); 288 devlink_health_reporter_state_update(fw_health->fw_reporter, state); 289 } 290 291 void bnxt_dl_health_fw_recovery_done(struct bnxt *bp) 292 { 293 struct bnxt_dl *dl = devlink_priv(bp->dl); 294 295 devlink_health_reporter_recovery_done(bp->fw_health->fw_reporter); 296 bnxt_hwrm_remote_dev_reset_set(bp, dl->remote_reset); 297 } 298 299 static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req, 300 struct netlink_ext_ack *extack); 301 302 static void 303 bnxt_dl_livepatch_report_err(struct bnxt *bp, struct netlink_ext_ack *extack, 304 struct hwrm_fw_livepatch_output *resp) 305 { 306 int err = ((struct hwrm_err_output *)resp)->cmd_err; 307 308 switch (err) { 309 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_OPCODE: 310 netdev_err(bp->dev, "Illegal live patch opcode"); 311 NL_SET_ERR_MSG_MOD(extack, "Invalid opcode"); 312 break; 313 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_SUPPORTED: 314 NL_SET_ERR_MSG_MOD(extack, "Live patch operation not supported"); 315 break; 316 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_INSTALLED: 317 NL_SET_ERR_MSG_MOD(extack, "Live patch not found"); 318 break; 319 case FW_LIVEPATCH_CMD_ERR_CODE_NOT_PATCHED: 320 NL_SET_ERR_MSG_MOD(extack, 321 "Live patch deactivation failed. Firmware not patched."); 322 break; 323 case FW_LIVEPATCH_CMD_ERR_CODE_AUTH_FAIL: 324 NL_SET_ERR_MSG_MOD(extack, "Live patch not authenticated"); 325 break; 326 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_HEADER: 327 NL_SET_ERR_MSG_MOD(extack, "Incompatible live patch"); 328 break; 329 case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_SIZE: 330 NL_SET_ERR_MSG_MOD(extack, "Live patch has invalid size"); 331 break; 332 case FW_LIVEPATCH_CMD_ERR_CODE_ALREADY_PATCHED: 333 NL_SET_ERR_MSG_MOD(extack, "Live patch already applied"); 334 break; 335 default: 336 netdev_err(bp->dev, "Unexpected live patch error: %d\n", err); 337 NL_SET_ERR_MSG_MOD(extack, "Failed to activate live patch"); 338 break; 339 } 340 } 341 342 /* Live patch status in NVM */ 343 #define BNXT_LIVEPATCH_NOT_INSTALLED 0 344 #define BNXT_LIVEPATCH_INSTALLED FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL 345 #define BNXT_LIVEPATCH_REMOVED FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE 346 #define BNXT_LIVEPATCH_MASK (FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL | \ 347 FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE) 348 #define BNXT_LIVEPATCH_ACTIVATED BNXT_LIVEPATCH_MASK 349 350 #define BNXT_LIVEPATCH_STATE(flags) ((flags) & BNXT_LIVEPATCH_MASK) 351 352 static int 353 bnxt_dl_livepatch_activate(struct bnxt *bp, struct netlink_ext_ack *extack) 354 { 355 struct hwrm_fw_livepatch_query_output *query_resp; 356 struct hwrm_fw_livepatch_query_input *query_req; 357 struct hwrm_fw_livepatch_output *patch_resp; 358 struct hwrm_fw_livepatch_input *patch_req; 359 u16 flags, live_patch_state; 360 bool activated = false; 361 u32 installed = 0; 362 u8 target; 363 int rc; 364 365 if (~bp->fw_cap & BNXT_FW_CAP_LIVEPATCH) { 366 NL_SET_ERR_MSG_MOD(extack, "Device does not support live patch"); 367 return -EOPNOTSUPP; 368 } 369 370 rc = hwrm_req_init(bp, query_req, HWRM_FW_LIVEPATCH_QUERY); 371 if (rc) 372 return rc; 373 query_resp = hwrm_req_hold(bp, query_req); 374 375 rc = hwrm_req_init(bp, patch_req, HWRM_FW_LIVEPATCH); 376 if (rc) { 377 hwrm_req_drop(bp, query_req); 378 return rc; 379 } 380 patch_req->loadtype = FW_LIVEPATCH_REQ_LOADTYPE_NVM_INSTALL; 381 patch_resp = hwrm_req_hold(bp, patch_req); 382 383 for (target = 1; target <= FW_LIVEPATCH_REQ_FW_TARGET_LAST; target++) { 384 query_req->fw_target = target; 385 rc = hwrm_req_send(bp, query_req); 386 if (rc) { 387 NL_SET_ERR_MSG_MOD(extack, "Failed to query packages"); 388 break; 389 } 390 391 flags = le16_to_cpu(query_resp->status_flags); 392 live_patch_state = BNXT_LIVEPATCH_STATE(flags); 393 394 if (live_patch_state == BNXT_LIVEPATCH_NOT_INSTALLED) 395 continue; 396 397 if (live_patch_state == BNXT_LIVEPATCH_ACTIVATED) { 398 activated = true; 399 continue; 400 } 401 402 if (live_patch_state == BNXT_LIVEPATCH_INSTALLED) 403 patch_req->opcode = FW_LIVEPATCH_REQ_OPCODE_ACTIVATE; 404 else if (live_patch_state == BNXT_LIVEPATCH_REMOVED) 405 patch_req->opcode = FW_LIVEPATCH_REQ_OPCODE_DEACTIVATE; 406 407 patch_req->fw_target = target; 408 rc = hwrm_req_send(bp, patch_req); 409 if (rc) { 410 bnxt_dl_livepatch_report_err(bp, extack, patch_resp); 411 break; 412 } 413 installed++; 414 } 415 416 if (!rc && !installed) { 417 if (activated) { 418 NL_SET_ERR_MSG_MOD(extack, "Live patch already activated"); 419 rc = -EEXIST; 420 } else { 421 NL_SET_ERR_MSG_MOD(extack, "No live patches found"); 422 rc = -ENOENT; 423 } 424 } 425 hwrm_req_drop(bp, query_req); 426 hwrm_req_drop(bp, patch_req); 427 return rc; 428 } 429 430 static int bnxt_dl_reload_down(struct devlink *dl, bool netns_change, 431 enum devlink_reload_action action, 432 enum devlink_reload_limit limit, 433 struct netlink_ext_ack *extack) 434 { 435 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 436 int rc = 0; 437 438 switch (action) { 439 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: { 440 rtnl_lock(); 441 if (bnxt_sriov_cfg(bp)) { 442 NL_SET_ERR_MSG_MOD(extack, 443 "reload is unsupported while VFs are allocated or being configured"); 444 rtnl_unlock(); 445 return -EOPNOTSUPP; 446 } 447 if (bp->dev->reg_state == NETREG_UNREGISTERED) { 448 rtnl_unlock(); 449 return -ENODEV; 450 } 451 bnxt_ulp_stop(bp); 452 if (netif_running(bp->dev)) { 453 rc = bnxt_close_nic(bp, true, true); 454 if (rc) { 455 NL_SET_ERR_MSG_MOD(extack, "Failed to close"); 456 dev_close(bp->dev); 457 rtnl_unlock(); 458 break; 459 } 460 } 461 bnxt_vf_reps_free(bp); 462 rc = bnxt_hwrm_func_drv_unrgtr(bp); 463 if (rc) { 464 NL_SET_ERR_MSG_MOD(extack, "Failed to deregister"); 465 if (netif_running(bp->dev)) 466 dev_close(bp->dev); 467 rtnl_unlock(); 468 break; 469 } 470 bnxt_cancel_reservations(bp, false); 471 bnxt_free_ctx_mem(bp); 472 break; 473 } 474 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: { 475 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET) 476 return bnxt_dl_livepatch_activate(bp, extack); 477 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET) { 478 NL_SET_ERR_MSG_MOD(extack, "Device not capable, requires reboot"); 479 return -EOPNOTSUPP; 480 } 481 if (!bnxt_hwrm_reset_permitted(bp)) { 482 NL_SET_ERR_MSG_MOD(extack, 483 "Reset denied by firmware, it may be inhibited by remote driver"); 484 return -EPERM; 485 } 486 rtnl_lock(); 487 if (bp->dev->reg_state == NETREG_UNREGISTERED) { 488 rtnl_unlock(); 489 return -ENODEV; 490 } 491 if (netif_running(bp->dev)) 492 set_bit(BNXT_STATE_FW_ACTIVATE, &bp->state); 493 rc = bnxt_hwrm_firmware_reset(bp->dev, 494 FW_RESET_REQ_EMBEDDED_PROC_TYPE_CHIP, 495 FW_RESET_REQ_SELFRST_STATUS_SELFRSTASAP, 496 FW_RESET_REQ_FLAGS_RESET_GRACEFUL | 497 FW_RESET_REQ_FLAGS_FW_ACTIVATION); 498 if (rc) { 499 NL_SET_ERR_MSG_MOD(extack, "Failed to activate firmware"); 500 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state); 501 rtnl_unlock(); 502 } 503 break; 504 } 505 default: 506 rc = -EOPNOTSUPP; 507 } 508 509 return rc; 510 } 511 512 static int bnxt_dl_reload_up(struct devlink *dl, enum devlink_reload_action action, 513 enum devlink_reload_limit limit, u32 *actions_performed, 514 struct netlink_ext_ack *extack) 515 { 516 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 517 int rc = 0; 518 519 *actions_performed = 0; 520 switch (action) { 521 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: { 522 bnxt_fw_init_one(bp); 523 bnxt_vf_reps_alloc(bp); 524 if (netif_running(bp->dev)) 525 rc = bnxt_open_nic(bp, true, true); 526 bnxt_ulp_start(bp, rc); 527 if (!rc) { 528 bnxt_reenable_sriov(bp); 529 bnxt_ptp_reapply_pps(bp); 530 } 531 break; 532 } 533 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: { 534 unsigned long start = jiffies; 535 unsigned long timeout = start + BNXT_DFLT_FW_RST_MAX_DSECS * HZ / 10; 536 537 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET) 538 break; 539 if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) 540 timeout = start + bp->fw_health->normal_func_wait_dsecs * HZ / 10; 541 if (!netif_running(bp->dev)) 542 NL_SET_ERR_MSG_MOD(extack, 543 "Device is closed, not waiting for reset notice that will never come"); 544 rtnl_unlock(); 545 while (test_bit(BNXT_STATE_FW_ACTIVATE, &bp->state)) { 546 if (time_after(jiffies, timeout)) { 547 NL_SET_ERR_MSG_MOD(extack, "Activation incomplete"); 548 rc = -ETIMEDOUT; 549 break; 550 } 551 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) { 552 NL_SET_ERR_MSG_MOD(extack, "Activation aborted"); 553 rc = -ENODEV; 554 break; 555 } 556 msleep(50); 557 } 558 rtnl_lock(); 559 if (!rc) 560 *actions_performed |= BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT); 561 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state); 562 break; 563 } 564 default: 565 return -EOPNOTSUPP; 566 } 567 568 if (!rc) { 569 bnxt_print_device_info(bp); 570 if (netif_running(bp->dev)) { 571 mutex_lock(&bp->link_lock); 572 bnxt_report_link(bp); 573 mutex_unlock(&bp->link_lock); 574 } 575 *actions_performed |= BIT(action); 576 } else if (netif_running(bp->dev)) { 577 dev_close(bp->dev); 578 } 579 rtnl_unlock(); 580 return rc; 581 } 582 583 static bool bnxt_nvm_test(struct bnxt *bp, struct netlink_ext_ack *extack) 584 { 585 bool rc = false; 586 u32 datalen; 587 u16 index; 588 u8 *buf; 589 590 if (bnxt_find_nvram_item(bp->dev, BNX_DIR_TYPE_VPD, 591 BNX_DIR_ORDINAL_FIRST, BNX_DIR_EXT_NONE, 592 &index, NULL, &datalen) || !datalen) { 593 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd entry error"); 594 return false; 595 } 596 597 buf = kzalloc(datalen, GFP_KERNEL); 598 if (!buf) { 599 NL_SET_ERR_MSG_MOD(extack, "insufficient memory for nvm test"); 600 return false; 601 } 602 603 if (bnxt_get_nvram_item(bp->dev, index, 0, datalen, buf)) { 604 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd read error"); 605 goto done; 606 } 607 608 if (bnxt_flash_nvram(bp->dev, BNX_DIR_TYPE_VPD, BNX_DIR_ORDINAL_FIRST, 609 BNX_DIR_EXT_NONE, 0, 0, buf, datalen)) { 610 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd write error"); 611 goto done; 612 } 613 614 rc = true; 615 616 done: 617 kfree(buf); 618 return rc; 619 } 620 621 static bool bnxt_dl_selftest_check(struct devlink *dl, unsigned int id, 622 struct netlink_ext_ack *extack) 623 { 624 return id == DEVLINK_ATTR_SELFTEST_ID_FLASH; 625 } 626 627 static enum devlink_selftest_status bnxt_dl_selftest_run(struct devlink *dl, 628 unsigned int id, 629 struct netlink_ext_ack *extack) 630 { 631 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 632 633 if (id == DEVLINK_ATTR_SELFTEST_ID_FLASH) 634 return bnxt_nvm_test(bp, extack) ? 635 DEVLINK_SELFTEST_STATUS_PASS : 636 DEVLINK_SELFTEST_STATUS_FAIL; 637 638 return DEVLINK_SELFTEST_STATUS_SKIP; 639 } 640 641 static const struct devlink_ops bnxt_dl_ops = { 642 #ifdef CONFIG_BNXT_SRIOV 643 .eswitch_mode_set = bnxt_dl_eswitch_mode_set, 644 .eswitch_mode_get = bnxt_dl_eswitch_mode_get, 645 #endif /* CONFIG_BNXT_SRIOV */ 646 .info_get = bnxt_dl_info_get, 647 .flash_update = bnxt_dl_flash_update, 648 .reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT) | 649 BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE), 650 .reload_limits = BIT(DEVLINK_RELOAD_LIMIT_NO_RESET), 651 .reload_down = bnxt_dl_reload_down, 652 .reload_up = bnxt_dl_reload_up, 653 .selftest_check = bnxt_dl_selftest_check, 654 .selftest_run = bnxt_dl_selftest_run, 655 }; 656 657 static const struct devlink_ops bnxt_vf_dl_ops; 658 659 enum bnxt_dl_param_id { 660 BNXT_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, 661 BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, 662 }; 663 664 static const struct bnxt_dl_nvm_param nvm_params[] = { 665 {DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, NVM_OFF_ENABLE_SRIOV, 666 BNXT_NVM_SHARED_CFG, 1, 1}, 667 {DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, NVM_OFF_IGNORE_ARI, 668 BNXT_NVM_SHARED_CFG, 1, 1}, 669 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, 670 NVM_OFF_MSIX_VEC_PER_PF_MAX, BNXT_NVM_SHARED_CFG, 10, 4}, 671 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, 672 NVM_OFF_MSIX_VEC_PER_PF_MIN, BNXT_NVM_SHARED_CFG, 7, 4}, 673 {BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, NVM_OFF_DIS_GRE_VER_CHECK, 674 BNXT_NVM_SHARED_CFG, 1, 1}, 675 }; 676 677 union bnxt_nvm_data { 678 u8 val8; 679 __le32 val32; 680 }; 681 682 static void bnxt_copy_to_nvm_data(union bnxt_nvm_data *dst, 683 union devlink_param_value *src, 684 int nvm_num_bits, int dl_num_bytes) 685 { 686 u32 val32 = 0; 687 688 if (nvm_num_bits == 1) { 689 dst->val8 = src->vbool; 690 return; 691 } 692 if (dl_num_bytes == 4) 693 val32 = src->vu32; 694 else if (dl_num_bytes == 2) 695 val32 = (u32)src->vu16; 696 else if (dl_num_bytes == 1) 697 val32 = (u32)src->vu8; 698 dst->val32 = cpu_to_le32(val32); 699 } 700 701 static void bnxt_copy_from_nvm_data(union devlink_param_value *dst, 702 union bnxt_nvm_data *src, 703 int nvm_num_bits, int dl_num_bytes) 704 { 705 u32 val32; 706 707 if (nvm_num_bits == 1) { 708 dst->vbool = src->val8; 709 return; 710 } 711 val32 = le32_to_cpu(src->val32); 712 if (dl_num_bytes == 4) 713 dst->vu32 = val32; 714 else if (dl_num_bytes == 2) 715 dst->vu16 = (u16)val32; 716 else if (dl_num_bytes == 1) 717 dst->vu8 = (u8)val32; 718 } 719 720 static int bnxt_hwrm_get_nvm_cfg_ver(struct bnxt *bp, u32 *nvm_cfg_ver) 721 { 722 struct hwrm_nvm_get_variable_input *req; 723 u16 bytes = BNXT_NVM_CFG_VER_BYTES; 724 u16 bits = BNXT_NVM_CFG_VER_BITS; 725 union devlink_param_value ver; 726 union bnxt_nvm_data *data; 727 dma_addr_t data_dma_addr; 728 int rc, i = 2; 729 u16 dim = 1; 730 731 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE); 732 if (rc) 733 return rc; 734 735 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr); 736 if (!data) { 737 rc = -ENOMEM; 738 goto exit; 739 } 740 741 /* earlier devices present as an array of raw bytes */ 742 if (!BNXT_CHIP_P5_PLUS(bp)) { 743 dim = 0; 744 i = 0; 745 bits *= 3; /* array of 3 version components */ 746 bytes *= 4; /* copy whole word */ 747 } 748 749 hwrm_req_hold(bp, req); 750 req->dest_data_addr = cpu_to_le64(data_dma_addr); 751 req->data_len = cpu_to_le16(bits); 752 req->option_num = cpu_to_le16(NVM_OFF_NVM_CFG_VER); 753 req->dimensions = cpu_to_le16(dim); 754 755 while (i >= 0) { 756 req->index_0 = cpu_to_le16(i--); 757 rc = hwrm_req_send_silent(bp, req); 758 if (rc) 759 goto exit; 760 bnxt_copy_from_nvm_data(&ver, data, bits, bytes); 761 762 if (BNXT_CHIP_P5_PLUS(bp)) { 763 *nvm_cfg_ver <<= 8; 764 *nvm_cfg_ver |= ver.vu8; 765 } else { 766 *nvm_cfg_ver = ver.vu32; 767 } 768 } 769 770 exit: 771 hwrm_req_drop(bp, req); 772 return rc; 773 } 774 775 static int bnxt_dl_info_put(struct bnxt *bp, struct devlink_info_req *req, 776 enum bnxt_dl_version_type type, const char *key, 777 char *buf) 778 { 779 if (!strlen(buf)) 780 return 0; 781 782 if ((bp->flags & BNXT_FLAG_CHIP_P5_PLUS) && 783 (!strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_NCSI) || 784 !strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_ROCE))) 785 return 0; 786 787 switch (type) { 788 case BNXT_VERSION_FIXED: 789 return devlink_info_version_fixed_put(req, key, buf); 790 case BNXT_VERSION_RUNNING: 791 return devlink_info_version_running_put(req, key, buf); 792 case BNXT_VERSION_STORED: 793 return devlink_info_version_stored_put(req, key, buf); 794 } 795 return 0; 796 } 797 798 #define BNXT_FW_SRT_PATCH "fw.srt.patch" 799 #define BNXT_FW_CRT_PATCH "fw.crt.patch" 800 801 static int bnxt_dl_livepatch_info_put(struct bnxt *bp, 802 struct devlink_info_req *req, 803 const char *key) 804 { 805 struct hwrm_fw_livepatch_query_input *query; 806 struct hwrm_fw_livepatch_query_output *resp; 807 u16 flags; 808 int rc; 809 810 if (~bp->fw_cap & BNXT_FW_CAP_LIVEPATCH) 811 return 0; 812 813 rc = hwrm_req_init(bp, query, HWRM_FW_LIVEPATCH_QUERY); 814 if (rc) 815 return rc; 816 817 if (!strcmp(key, BNXT_FW_SRT_PATCH)) 818 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_SECURE_FW; 819 else if (!strcmp(key, BNXT_FW_CRT_PATCH)) 820 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_COMMON_FW; 821 else 822 goto exit; 823 824 resp = hwrm_req_hold(bp, query); 825 rc = hwrm_req_send(bp, query); 826 if (rc) 827 goto exit; 828 829 flags = le16_to_cpu(resp->status_flags); 830 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE) { 831 resp->active_ver[sizeof(resp->active_ver) - 1] = '\0'; 832 rc = devlink_info_version_running_put(req, key, resp->active_ver); 833 if (rc) 834 goto exit; 835 } 836 837 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL) { 838 resp->install_ver[sizeof(resp->install_ver) - 1] = '\0'; 839 rc = devlink_info_version_stored_put(req, key, resp->install_ver); 840 if (rc) 841 goto exit; 842 } 843 844 exit: 845 hwrm_req_drop(bp, query); 846 return rc; 847 } 848 849 #define HWRM_FW_VER_STR_LEN 16 850 851 static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req, 852 struct netlink_ext_ack *extack) 853 { 854 struct hwrm_nvm_get_dev_info_output nvm_dev_info; 855 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 856 struct hwrm_ver_get_output *ver_resp; 857 char mgmt_ver[FW_VER_STR_LEN]; 858 char roce_ver[FW_VER_STR_LEN]; 859 char ncsi_ver[FW_VER_STR_LEN]; 860 char buf[32]; 861 u32 ver = 0; 862 int rc; 863 864 if (BNXT_PF(bp) && (bp->flags & BNXT_FLAG_DSN_VALID)) { 865 sprintf(buf, "%02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X", 866 bp->dsn[7], bp->dsn[6], bp->dsn[5], bp->dsn[4], 867 bp->dsn[3], bp->dsn[2], bp->dsn[1], bp->dsn[0]); 868 rc = devlink_info_serial_number_put(req, buf); 869 if (rc) 870 return rc; 871 } 872 873 if (strlen(bp->board_serialno)) { 874 rc = devlink_info_board_serial_number_put(req, bp->board_serialno); 875 if (rc) 876 return rc; 877 } 878 879 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED, 880 DEVLINK_INFO_VERSION_GENERIC_BOARD_ID, 881 bp->board_partno); 882 if (rc) 883 return rc; 884 885 sprintf(buf, "%X", bp->chip_num); 886 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED, 887 DEVLINK_INFO_VERSION_GENERIC_ASIC_ID, buf); 888 if (rc) 889 return rc; 890 891 ver_resp = &bp->ver_resp; 892 sprintf(buf, "%c%d", 'A' + ver_resp->chip_rev, ver_resp->chip_metal); 893 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED, 894 DEVLINK_INFO_VERSION_GENERIC_ASIC_REV, buf); 895 if (rc) 896 return rc; 897 898 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 899 DEVLINK_INFO_VERSION_GENERIC_FW_PSID, 900 bp->nvm_cfg_ver); 901 if (rc) 902 return rc; 903 904 buf[0] = 0; 905 strncat(buf, ver_resp->active_pkg_name, HWRM_FW_VER_STR_LEN); 906 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 907 DEVLINK_INFO_VERSION_GENERIC_FW, buf); 908 if (rc) 909 return rc; 910 911 if (BNXT_PF(bp) && !bnxt_hwrm_get_nvm_cfg_ver(bp, &ver)) { 912 sprintf(buf, "%d.%d.%d", (ver >> 16) & 0xff, (ver >> 8) & 0xff, 913 ver & 0xff); 914 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 915 DEVLINK_INFO_VERSION_GENERIC_FW_PSID, 916 buf); 917 if (rc) 918 return rc; 919 } 920 921 if (ver_resp->flags & VER_GET_RESP_FLAGS_EXT_VER_AVAIL) { 922 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 923 ver_resp->hwrm_fw_major, ver_resp->hwrm_fw_minor, 924 ver_resp->hwrm_fw_build, ver_resp->hwrm_fw_patch); 925 926 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 927 ver_resp->mgmt_fw_major, ver_resp->mgmt_fw_minor, 928 ver_resp->mgmt_fw_build, ver_resp->mgmt_fw_patch); 929 930 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 931 ver_resp->roce_fw_major, ver_resp->roce_fw_minor, 932 ver_resp->roce_fw_build, ver_resp->roce_fw_patch); 933 } else { 934 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 935 ver_resp->hwrm_fw_maj_8b, ver_resp->hwrm_fw_min_8b, 936 ver_resp->hwrm_fw_bld_8b, ver_resp->hwrm_fw_rsvd_8b); 937 938 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 939 ver_resp->mgmt_fw_maj_8b, ver_resp->mgmt_fw_min_8b, 940 ver_resp->mgmt_fw_bld_8b, ver_resp->mgmt_fw_rsvd_8b); 941 942 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 943 ver_resp->roce_fw_maj_8b, ver_resp->roce_fw_min_8b, 944 ver_resp->roce_fw_bld_8b, ver_resp->roce_fw_rsvd_8b); 945 } 946 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 947 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver); 948 if (rc) 949 return rc; 950 951 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 952 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API, 953 bp->hwrm_ver_supp); 954 if (rc) 955 return rc; 956 957 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 958 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver); 959 if (rc) 960 return rc; 961 962 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 963 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver); 964 if (rc) 965 return rc; 966 967 rc = bnxt_hwrm_nvm_get_dev_info(bp, &nvm_dev_info); 968 if (rc || 969 !(nvm_dev_info.flags & NVM_GET_DEV_INFO_RESP_FLAGS_FW_VER_VALID)) { 970 if (!bnxt_get_pkginfo(bp->dev, buf, sizeof(buf))) 971 return bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 972 DEVLINK_INFO_VERSION_GENERIC_FW, 973 buf); 974 return 0; 975 } 976 977 buf[0] = 0; 978 strncat(buf, nvm_dev_info.pkg_name, HWRM_FW_VER_STR_LEN); 979 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 980 DEVLINK_INFO_VERSION_GENERIC_FW, buf); 981 if (rc) 982 return rc; 983 984 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 985 nvm_dev_info.hwrm_fw_major, nvm_dev_info.hwrm_fw_minor, 986 nvm_dev_info.hwrm_fw_build, nvm_dev_info.hwrm_fw_patch); 987 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 988 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver); 989 if (rc) 990 return rc; 991 992 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 993 nvm_dev_info.mgmt_fw_major, nvm_dev_info.mgmt_fw_minor, 994 nvm_dev_info.mgmt_fw_build, nvm_dev_info.mgmt_fw_patch); 995 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 996 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver); 997 if (rc) 998 return rc; 999 1000 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 1001 nvm_dev_info.roce_fw_major, nvm_dev_info.roce_fw_minor, 1002 nvm_dev_info.roce_fw_build, nvm_dev_info.roce_fw_patch); 1003 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 1004 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver); 1005 if (rc) 1006 return rc; 1007 1008 if (BNXT_CHIP_P5_PLUS(bp)) { 1009 rc = bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_SRT_PATCH); 1010 if (rc) 1011 return rc; 1012 } 1013 return bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_CRT_PATCH); 1014 1015 } 1016 1017 static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg, 1018 union devlink_param_value *val) 1019 { 1020 struct hwrm_nvm_get_variable_input *req = msg; 1021 struct bnxt_dl_nvm_param nvm_param; 1022 struct hwrm_err_output *resp; 1023 union bnxt_nvm_data *data; 1024 dma_addr_t data_dma_addr; 1025 int idx = 0, rc, i; 1026 1027 /* Get/Set NVM CFG parameter is supported only on PFs */ 1028 if (BNXT_VF(bp)) { 1029 hwrm_req_drop(bp, req); 1030 return -EPERM; 1031 } 1032 1033 for (i = 0; i < ARRAY_SIZE(nvm_params); i++) { 1034 if (nvm_params[i].id == param_id) { 1035 nvm_param = nvm_params[i]; 1036 break; 1037 } 1038 } 1039 1040 if (i == ARRAY_SIZE(nvm_params)) { 1041 hwrm_req_drop(bp, req); 1042 return -EOPNOTSUPP; 1043 } 1044 1045 if (nvm_param.dir_type == BNXT_NVM_PORT_CFG) 1046 idx = bp->pf.port_id; 1047 else if (nvm_param.dir_type == BNXT_NVM_FUNC_CFG) 1048 idx = bp->pf.fw_fid - BNXT_FIRST_PF_FID; 1049 1050 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr); 1051 1052 if (!data) { 1053 hwrm_req_drop(bp, req); 1054 return -ENOMEM; 1055 } 1056 1057 req->dest_data_addr = cpu_to_le64(data_dma_addr); 1058 req->data_len = cpu_to_le16(nvm_param.nvm_num_bits); 1059 req->option_num = cpu_to_le16(nvm_param.offset); 1060 req->index_0 = cpu_to_le16(idx); 1061 if (idx) 1062 req->dimensions = cpu_to_le16(1); 1063 1064 resp = hwrm_req_hold(bp, req); 1065 if (req->req_type == cpu_to_le16(HWRM_NVM_SET_VARIABLE)) { 1066 bnxt_copy_to_nvm_data(data, val, nvm_param.nvm_num_bits, 1067 nvm_param.dl_num_bytes); 1068 rc = hwrm_req_send(bp, msg); 1069 } else { 1070 rc = hwrm_req_send_silent(bp, msg); 1071 if (!rc) { 1072 bnxt_copy_from_nvm_data(val, data, 1073 nvm_param.nvm_num_bits, 1074 nvm_param.dl_num_bytes); 1075 } else { 1076 if (resp->cmd_err == 1077 NVM_GET_VARIABLE_CMD_ERR_CODE_VAR_NOT_EXIST) 1078 rc = -EOPNOTSUPP; 1079 } 1080 } 1081 hwrm_req_drop(bp, req); 1082 if (rc == -EACCES) 1083 netdev_err(bp->dev, "PF does not have admin privileges to modify NVM config\n"); 1084 return rc; 1085 } 1086 1087 static int bnxt_dl_nvm_param_get(struct devlink *dl, u32 id, 1088 struct devlink_param_gset_ctx *ctx) 1089 { 1090 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 1091 struct hwrm_nvm_get_variable_input *req; 1092 int rc; 1093 1094 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE); 1095 if (rc) 1096 return rc; 1097 1098 rc = bnxt_hwrm_nvm_req(bp, id, req, &ctx->val); 1099 if (!rc && id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK) 1100 ctx->val.vbool = !ctx->val.vbool; 1101 1102 return rc; 1103 } 1104 1105 static int bnxt_dl_nvm_param_set(struct devlink *dl, u32 id, 1106 struct devlink_param_gset_ctx *ctx) 1107 { 1108 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 1109 struct hwrm_nvm_set_variable_input *req; 1110 int rc; 1111 1112 rc = hwrm_req_init(bp, req, HWRM_NVM_SET_VARIABLE); 1113 if (rc) 1114 return rc; 1115 1116 if (id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK) 1117 ctx->val.vbool = !ctx->val.vbool; 1118 1119 return bnxt_hwrm_nvm_req(bp, id, req, &ctx->val); 1120 } 1121 1122 static int bnxt_dl_msix_validate(struct devlink *dl, u32 id, 1123 union devlink_param_value val, 1124 struct netlink_ext_ack *extack) 1125 { 1126 int max_val = -1; 1127 1128 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX) 1129 max_val = BNXT_MSIX_VEC_MAX; 1130 1131 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN) 1132 max_val = BNXT_MSIX_VEC_MIN_MAX; 1133 1134 if (val.vu32 > max_val) { 1135 NL_SET_ERR_MSG_MOD(extack, "MSIX value is exceeding the range"); 1136 return -EINVAL; 1137 } 1138 1139 return 0; 1140 } 1141 1142 static int bnxt_remote_dev_reset_get(struct devlink *dl, u32 id, 1143 struct devlink_param_gset_ctx *ctx) 1144 { 1145 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 1146 1147 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF) 1148 return -EOPNOTSUPP; 1149 1150 ctx->val.vbool = bnxt_dl_get_remote_reset(dl); 1151 return 0; 1152 } 1153 1154 static int bnxt_remote_dev_reset_set(struct devlink *dl, u32 id, 1155 struct devlink_param_gset_ctx *ctx) 1156 { 1157 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 1158 int rc; 1159 1160 rc = bnxt_hwrm_remote_dev_reset_set(bp, ctx->val.vbool); 1161 if (rc) 1162 return rc; 1163 1164 bnxt_dl_set_remote_reset(dl, ctx->val.vbool); 1165 return rc; 1166 } 1167 1168 static const struct devlink_param bnxt_dl_params[] = { 1169 DEVLINK_PARAM_GENERIC(ENABLE_SRIOV, 1170 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1171 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1172 NULL), 1173 DEVLINK_PARAM_GENERIC(IGNORE_ARI, 1174 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1175 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1176 NULL), 1177 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MAX, 1178 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1179 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1180 bnxt_dl_msix_validate), 1181 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MIN, 1182 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1183 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1184 bnxt_dl_msix_validate), 1185 DEVLINK_PARAM_DRIVER(BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, 1186 "gre_ver_check", DEVLINK_PARAM_TYPE_BOOL, 1187 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1188 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1189 NULL), 1190 /* keep REMOTE_DEV_RESET last, it is excluded based on caps */ 1191 DEVLINK_PARAM_GENERIC(ENABLE_REMOTE_DEV_RESET, 1192 BIT(DEVLINK_PARAM_CMODE_RUNTIME), 1193 bnxt_remote_dev_reset_get, 1194 bnxt_remote_dev_reset_set, NULL), 1195 }; 1196 1197 static int bnxt_dl_params_register(struct bnxt *bp) 1198 { 1199 int num_params = ARRAY_SIZE(bnxt_dl_params); 1200 int rc; 1201 1202 if (bp->hwrm_spec_code < 0x10600) 1203 return 0; 1204 1205 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF) 1206 num_params--; 1207 1208 rc = devlink_params_register(bp->dl, bnxt_dl_params, num_params); 1209 if (rc) 1210 netdev_warn(bp->dev, "devlink_params_register failed. rc=%d\n", 1211 rc); 1212 return rc; 1213 } 1214 1215 static void bnxt_dl_params_unregister(struct bnxt *bp) 1216 { 1217 int num_params = ARRAY_SIZE(bnxt_dl_params); 1218 1219 if (bp->hwrm_spec_code < 0x10600) 1220 return; 1221 1222 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF) 1223 num_params--; 1224 1225 devlink_params_unregister(bp->dl, bnxt_dl_params, num_params); 1226 } 1227 1228 int bnxt_dl_register(struct bnxt *bp) 1229 { 1230 const struct devlink_ops *devlink_ops; 1231 struct devlink_port_attrs attrs = {}; 1232 struct bnxt_dl *bp_dl; 1233 struct devlink *dl; 1234 int rc; 1235 1236 if (BNXT_PF(bp)) 1237 devlink_ops = &bnxt_dl_ops; 1238 else 1239 devlink_ops = &bnxt_vf_dl_ops; 1240 1241 dl = devlink_alloc(devlink_ops, sizeof(struct bnxt_dl), &bp->pdev->dev); 1242 if (!dl) { 1243 netdev_warn(bp->dev, "devlink_alloc failed\n"); 1244 return -ENOMEM; 1245 } 1246 1247 bp->dl = dl; 1248 bp_dl = devlink_priv(dl); 1249 bp_dl->bp = bp; 1250 bnxt_dl_set_remote_reset(dl, true); 1251 1252 /* Add switchdev eswitch mode setting, if SRIOV supported */ 1253 if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV) && 1254 bp->hwrm_spec_code > 0x10803) 1255 bp->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY; 1256 1257 if (!BNXT_PF(bp)) 1258 goto out; 1259 1260 attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL; 1261 attrs.phys.port_number = bp->pf.port_id; 1262 memcpy(attrs.switch_id.id, bp->dsn, sizeof(bp->dsn)); 1263 attrs.switch_id.id_len = sizeof(bp->dsn); 1264 devlink_port_attrs_set(&bp->dl_port, &attrs); 1265 rc = devlink_port_register(dl, &bp->dl_port, bp->pf.port_id); 1266 if (rc) { 1267 netdev_err(bp->dev, "devlink_port_register failed\n"); 1268 goto err_dl_free; 1269 } 1270 1271 rc = bnxt_dl_params_register(bp); 1272 if (rc) 1273 goto err_dl_port_unreg; 1274 1275 out: 1276 devlink_register(dl); 1277 return 0; 1278 1279 err_dl_port_unreg: 1280 devlink_port_unregister(&bp->dl_port); 1281 err_dl_free: 1282 devlink_free(dl); 1283 return rc; 1284 } 1285 1286 void bnxt_dl_unregister(struct bnxt *bp) 1287 { 1288 struct devlink *dl = bp->dl; 1289 1290 devlink_unregister(dl); 1291 if (BNXT_PF(bp)) { 1292 bnxt_dl_params_unregister(bp); 1293 devlink_port_unregister(&bp->dl_port); 1294 } 1295 devlink_free(dl); 1296 } 1297