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 25static 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 34static int 35bnxt_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 57static 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 77static 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 88static 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 100static 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 161static 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 194static 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 209static 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 216static 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 232void 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 240void 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 250void 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 273void 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 291void 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 299static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req, 300 struct netlink_ext_ack *extack); 301 302static void 303bnxt_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 352static int 353bnxt_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 430static 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 bnxt_close_nic(bp, true, true); 454 bnxt_vf_reps_free(bp); 455 rc = bnxt_hwrm_func_drv_unrgtr(bp); 456 if (rc) { 457 NL_SET_ERR_MSG_MOD(extack, "Failed to deregister"); 458 if (netif_running(bp->dev)) 459 dev_close(bp->dev); 460 rtnl_unlock(); 461 break; 462 } 463 bnxt_cancel_reservations(bp, false); 464 bnxt_free_ctx_mem(bp); 465 break; 466 } 467 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: { 468 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET) 469 return bnxt_dl_livepatch_activate(bp, extack); 470 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET) { 471 NL_SET_ERR_MSG_MOD(extack, "Device not capable, requires reboot"); 472 return -EOPNOTSUPP; 473 } 474 if (!bnxt_hwrm_reset_permitted(bp)) { 475 NL_SET_ERR_MSG_MOD(extack, 476 "Reset denied by firmware, it may be inhibited by remote driver"); 477 return -EPERM; 478 } 479 rtnl_lock(); 480 if (bp->dev->reg_state == NETREG_UNREGISTERED) { 481 rtnl_unlock(); 482 return -ENODEV; 483 } 484 if (netif_running(bp->dev)) 485 set_bit(BNXT_STATE_FW_ACTIVATE, &bp->state); 486 rc = bnxt_hwrm_firmware_reset(bp->dev, 487 FW_RESET_REQ_EMBEDDED_PROC_TYPE_CHIP, 488 FW_RESET_REQ_SELFRST_STATUS_SELFRSTASAP, 489 FW_RESET_REQ_FLAGS_RESET_GRACEFUL | 490 FW_RESET_REQ_FLAGS_FW_ACTIVATION); 491 if (rc) { 492 NL_SET_ERR_MSG_MOD(extack, "Failed to activate firmware"); 493 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state); 494 rtnl_unlock(); 495 } 496 break; 497 } 498 default: 499 rc = -EOPNOTSUPP; 500 } 501 502 return rc; 503} 504 505static int bnxt_dl_reload_up(struct devlink *dl, enum devlink_reload_action action, 506 enum devlink_reload_limit limit, u32 *actions_performed, 507 struct netlink_ext_ack *extack) 508{ 509 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 510 int rc = 0; 511 512 *actions_performed = 0; 513 switch (action) { 514 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: { 515 bnxt_fw_init_one(bp); 516 bnxt_vf_reps_alloc(bp); 517 if (netif_running(bp->dev)) 518 rc = bnxt_open_nic(bp, true, true); 519 bnxt_ulp_start(bp, rc); 520 if (!rc) { 521 bnxt_reenable_sriov(bp); 522 bnxt_ptp_reapply_pps(bp); 523 } 524 break; 525 } 526 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: { 527 unsigned long start = jiffies; 528 unsigned long timeout = start + BNXT_DFLT_FW_RST_MAX_DSECS * HZ / 10; 529 530 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET) 531 break; 532 if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) 533 timeout = start + bp->fw_health->normal_func_wait_dsecs * HZ / 10; 534 if (!netif_running(bp->dev)) 535 NL_SET_ERR_MSG_MOD(extack, 536 "Device is closed, not waiting for reset notice that will never come"); 537 rtnl_unlock(); 538 while (test_bit(BNXT_STATE_FW_ACTIVATE, &bp->state)) { 539 if (time_after(jiffies, timeout)) { 540 NL_SET_ERR_MSG_MOD(extack, "Activation incomplete"); 541 rc = -ETIMEDOUT; 542 break; 543 } 544 if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) { 545 NL_SET_ERR_MSG_MOD(extack, "Activation aborted"); 546 rc = -ENODEV; 547 break; 548 } 549 msleep(50); 550 } 551 rtnl_lock(); 552 if (!rc) 553 *actions_performed |= BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT); 554 clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state); 555 break; 556 } 557 default: 558 return -EOPNOTSUPP; 559 } 560 561 if (!rc) { 562 bnxt_print_device_info(bp); 563 if (netif_running(bp->dev)) { 564 mutex_lock(&bp->link_lock); 565 bnxt_report_link(bp); 566 mutex_unlock(&bp->link_lock); 567 } 568 *actions_performed |= BIT(action); 569 } else if (netif_running(bp->dev)) { 570 dev_close(bp->dev); 571 } 572 rtnl_unlock(); 573 return rc; 574} 575 576static bool bnxt_nvm_test(struct bnxt *bp, struct netlink_ext_ack *extack) 577{ 578 bool rc = false; 579 u32 datalen; 580 u16 index; 581 u8 *buf; 582 583 if (bnxt_find_nvram_item(bp->dev, BNX_DIR_TYPE_VPD, 584 BNX_DIR_ORDINAL_FIRST, BNX_DIR_EXT_NONE, 585 &index, NULL, &datalen) || !datalen) { 586 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd entry error"); 587 return false; 588 } 589 590 buf = kzalloc(datalen, GFP_KERNEL); 591 if (!buf) { 592 NL_SET_ERR_MSG_MOD(extack, "insufficient memory for nvm test"); 593 return false; 594 } 595 596 if (bnxt_get_nvram_item(bp->dev, index, 0, datalen, buf)) { 597 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd read error"); 598 goto done; 599 } 600 601 if (bnxt_flash_nvram(bp->dev, BNX_DIR_TYPE_VPD, BNX_DIR_ORDINAL_FIRST, 602 BNX_DIR_EXT_NONE, 0, 0, buf, datalen)) { 603 NL_SET_ERR_MSG_MOD(extack, "nvm test vpd write error"); 604 goto done; 605 } 606 607 rc = true; 608 609done: 610 kfree(buf); 611 return rc; 612} 613 614static bool bnxt_dl_selftest_check(struct devlink *dl, unsigned int id, 615 struct netlink_ext_ack *extack) 616{ 617 return id == DEVLINK_ATTR_SELFTEST_ID_FLASH; 618} 619 620static enum devlink_selftest_status bnxt_dl_selftest_run(struct devlink *dl, 621 unsigned int id, 622 struct netlink_ext_ack *extack) 623{ 624 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 625 626 if (id == DEVLINK_ATTR_SELFTEST_ID_FLASH) 627 return bnxt_nvm_test(bp, extack) ? 628 DEVLINK_SELFTEST_STATUS_PASS : 629 DEVLINK_SELFTEST_STATUS_FAIL; 630 631 return DEVLINK_SELFTEST_STATUS_SKIP; 632} 633 634static const struct devlink_ops bnxt_dl_ops = { 635#ifdef CONFIG_BNXT_SRIOV 636 .eswitch_mode_set = bnxt_dl_eswitch_mode_set, 637 .eswitch_mode_get = bnxt_dl_eswitch_mode_get, 638#endif /* CONFIG_BNXT_SRIOV */ 639 .info_get = bnxt_dl_info_get, 640 .flash_update = bnxt_dl_flash_update, 641 .reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT) | 642 BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE), 643 .reload_limits = BIT(DEVLINK_RELOAD_LIMIT_NO_RESET), 644 .reload_down = bnxt_dl_reload_down, 645 .reload_up = bnxt_dl_reload_up, 646 .selftest_check = bnxt_dl_selftest_check, 647 .selftest_run = bnxt_dl_selftest_run, 648}; 649 650static const struct devlink_ops bnxt_vf_dl_ops; 651 652enum bnxt_dl_param_id { 653 BNXT_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, 654 BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, 655}; 656 657static const struct bnxt_dl_nvm_param nvm_params[] = { 658 {DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, NVM_OFF_ENABLE_SRIOV, 659 BNXT_NVM_SHARED_CFG, 1, 1}, 660 {DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, NVM_OFF_IGNORE_ARI, 661 BNXT_NVM_SHARED_CFG, 1, 1}, 662 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, 663 NVM_OFF_MSIX_VEC_PER_PF_MAX, BNXT_NVM_SHARED_CFG, 10, 4}, 664 {DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, 665 NVM_OFF_MSIX_VEC_PER_PF_MIN, BNXT_NVM_SHARED_CFG, 7, 4}, 666 {BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, NVM_OFF_DIS_GRE_VER_CHECK, 667 BNXT_NVM_SHARED_CFG, 1, 1}, 668}; 669 670union bnxt_nvm_data { 671 u8 val8; 672 __le32 val32; 673}; 674 675static void bnxt_copy_to_nvm_data(union bnxt_nvm_data *dst, 676 union devlink_param_value *src, 677 int nvm_num_bits, int dl_num_bytes) 678{ 679 u32 val32 = 0; 680 681 if (nvm_num_bits == 1) { 682 dst->val8 = src->vbool; 683 return; 684 } 685 if (dl_num_bytes == 4) 686 val32 = src->vu32; 687 else if (dl_num_bytes == 2) 688 val32 = (u32)src->vu16; 689 else if (dl_num_bytes == 1) 690 val32 = (u32)src->vu8; 691 dst->val32 = cpu_to_le32(val32); 692} 693 694static void bnxt_copy_from_nvm_data(union devlink_param_value *dst, 695 union bnxt_nvm_data *src, 696 int nvm_num_bits, int dl_num_bytes) 697{ 698 u32 val32; 699 700 if (nvm_num_bits == 1) { 701 dst->vbool = src->val8; 702 return; 703 } 704 val32 = le32_to_cpu(src->val32); 705 if (dl_num_bytes == 4) 706 dst->vu32 = val32; 707 else if (dl_num_bytes == 2) 708 dst->vu16 = (u16)val32; 709 else if (dl_num_bytes == 1) 710 dst->vu8 = (u8)val32; 711} 712 713static int bnxt_hwrm_get_nvm_cfg_ver(struct bnxt *bp, u32 *nvm_cfg_ver) 714{ 715 struct hwrm_nvm_get_variable_input *req; 716 u16 bytes = BNXT_NVM_CFG_VER_BYTES; 717 u16 bits = BNXT_NVM_CFG_VER_BITS; 718 union devlink_param_value ver; 719 union bnxt_nvm_data *data; 720 dma_addr_t data_dma_addr; 721 int rc, i = 2; 722 u16 dim = 1; 723 724 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE); 725 if (rc) 726 return rc; 727 728 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr); 729 if (!data) { 730 rc = -ENOMEM; 731 goto exit; 732 } 733 734 /* earlier devices present as an array of raw bytes */ 735 if (!BNXT_CHIP_P5_PLUS(bp)) { 736 dim = 0; 737 i = 0; 738 bits *= 3; /* array of 3 version components */ 739 bytes *= 4; /* copy whole word */ 740 } 741 742 hwrm_req_hold(bp, req); 743 req->dest_data_addr = cpu_to_le64(data_dma_addr); 744 req->data_len = cpu_to_le16(bits); 745 req->option_num = cpu_to_le16(NVM_OFF_NVM_CFG_VER); 746 req->dimensions = cpu_to_le16(dim); 747 748 while (i >= 0) { 749 req->index_0 = cpu_to_le16(i--); 750 rc = hwrm_req_send_silent(bp, req); 751 if (rc) 752 goto exit; 753 bnxt_copy_from_nvm_data(&ver, data, bits, bytes); 754 755 if (BNXT_CHIP_P5_PLUS(bp)) { 756 *nvm_cfg_ver <<= 8; 757 *nvm_cfg_ver |= ver.vu8; 758 } else { 759 *nvm_cfg_ver = ver.vu32; 760 } 761 } 762 763exit: 764 hwrm_req_drop(bp, req); 765 return rc; 766} 767 768static int bnxt_dl_info_put(struct bnxt *bp, struct devlink_info_req *req, 769 enum bnxt_dl_version_type type, const char *key, 770 char *buf) 771{ 772 if (!strlen(buf)) 773 return 0; 774 775 if ((bp->flags & BNXT_FLAG_CHIP_P5_PLUS) && 776 (!strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_NCSI) || 777 !strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_ROCE))) 778 return 0; 779 780 switch (type) { 781 case BNXT_VERSION_FIXED: 782 return devlink_info_version_fixed_put(req, key, buf); 783 case BNXT_VERSION_RUNNING: 784 return devlink_info_version_running_put(req, key, buf); 785 case BNXT_VERSION_STORED: 786 return devlink_info_version_stored_put(req, key, buf); 787 } 788 return 0; 789} 790 791#define BNXT_FW_SRT_PATCH "fw.srt.patch" 792#define BNXT_FW_CRT_PATCH "fw.crt.patch" 793 794static int bnxt_dl_livepatch_info_put(struct bnxt *bp, 795 struct devlink_info_req *req, 796 const char *key) 797{ 798 struct hwrm_fw_livepatch_query_input *query; 799 struct hwrm_fw_livepatch_query_output *resp; 800 u16 flags; 801 int rc; 802 803 if (~bp->fw_cap & BNXT_FW_CAP_LIVEPATCH) 804 return 0; 805 806 rc = hwrm_req_init(bp, query, HWRM_FW_LIVEPATCH_QUERY); 807 if (rc) 808 return rc; 809 810 if (!strcmp(key, BNXT_FW_SRT_PATCH)) 811 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_SECURE_FW; 812 else if (!strcmp(key, BNXT_FW_CRT_PATCH)) 813 query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_COMMON_FW; 814 else 815 goto exit; 816 817 resp = hwrm_req_hold(bp, query); 818 rc = hwrm_req_send(bp, query); 819 if (rc) 820 goto exit; 821 822 flags = le16_to_cpu(resp->status_flags); 823 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE) { 824 resp->active_ver[sizeof(resp->active_ver) - 1] = '\0'; 825 rc = devlink_info_version_running_put(req, key, resp->active_ver); 826 if (rc) 827 goto exit; 828 } 829 830 if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL) { 831 resp->install_ver[sizeof(resp->install_ver) - 1] = '\0'; 832 rc = devlink_info_version_stored_put(req, key, resp->install_ver); 833 if (rc) 834 goto exit; 835 } 836 837exit: 838 hwrm_req_drop(bp, query); 839 return rc; 840} 841 842#define HWRM_FW_VER_STR_LEN 16 843 844static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req, 845 struct netlink_ext_ack *extack) 846{ 847 struct hwrm_nvm_get_dev_info_output nvm_dev_info; 848 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 849 struct hwrm_ver_get_output *ver_resp; 850 char mgmt_ver[FW_VER_STR_LEN]; 851 char roce_ver[FW_VER_STR_LEN]; 852 char ncsi_ver[FW_VER_STR_LEN]; 853 char buf[32]; 854 u32 ver = 0; 855 int rc; 856 857 if (BNXT_PF(bp) && (bp->flags & BNXT_FLAG_DSN_VALID)) { 858 sprintf(buf, "%02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X", 859 bp->dsn[7], bp->dsn[6], bp->dsn[5], bp->dsn[4], 860 bp->dsn[3], bp->dsn[2], bp->dsn[1], bp->dsn[0]); 861 rc = devlink_info_serial_number_put(req, buf); 862 if (rc) 863 return rc; 864 } 865 866 if (strlen(bp->board_serialno)) { 867 rc = devlink_info_board_serial_number_put(req, bp->board_serialno); 868 if (rc) 869 return rc; 870 } 871 872 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED, 873 DEVLINK_INFO_VERSION_GENERIC_BOARD_ID, 874 bp->board_partno); 875 if (rc) 876 return rc; 877 878 sprintf(buf, "%X", bp->chip_num); 879 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED, 880 DEVLINK_INFO_VERSION_GENERIC_ASIC_ID, buf); 881 if (rc) 882 return rc; 883 884 ver_resp = &bp->ver_resp; 885 sprintf(buf, "%c%d", 'A' + ver_resp->chip_rev, ver_resp->chip_metal); 886 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED, 887 DEVLINK_INFO_VERSION_GENERIC_ASIC_REV, buf); 888 if (rc) 889 return rc; 890 891 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 892 DEVLINK_INFO_VERSION_GENERIC_FW_PSID, 893 bp->nvm_cfg_ver); 894 if (rc) 895 return rc; 896 897 buf[0] = 0; 898 strncat(buf, ver_resp->active_pkg_name, HWRM_FW_VER_STR_LEN); 899 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 900 DEVLINK_INFO_VERSION_GENERIC_FW, buf); 901 if (rc) 902 return rc; 903 904 if (BNXT_PF(bp) && !bnxt_hwrm_get_nvm_cfg_ver(bp, &ver)) { 905 sprintf(buf, "%d.%d.%d", (ver >> 16) & 0xff, (ver >> 8) & 0xff, 906 ver & 0xff); 907 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 908 DEVLINK_INFO_VERSION_GENERIC_FW_PSID, 909 buf); 910 if (rc) 911 return rc; 912 } 913 914 if (ver_resp->flags & VER_GET_RESP_FLAGS_EXT_VER_AVAIL) { 915 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 916 ver_resp->hwrm_fw_major, ver_resp->hwrm_fw_minor, 917 ver_resp->hwrm_fw_build, ver_resp->hwrm_fw_patch); 918 919 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 920 ver_resp->mgmt_fw_major, ver_resp->mgmt_fw_minor, 921 ver_resp->mgmt_fw_build, ver_resp->mgmt_fw_patch); 922 923 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 924 ver_resp->roce_fw_major, ver_resp->roce_fw_minor, 925 ver_resp->roce_fw_build, ver_resp->roce_fw_patch); 926 } else { 927 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 928 ver_resp->hwrm_fw_maj_8b, ver_resp->hwrm_fw_min_8b, 929 ver_resp->hwrm_fw_bld_8b, ver_resp->hwrm_fw_rsvd_8b); 930 931 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 932 ver_resp->mgmt_fw_maj_8b, ver_resp->mgmt_fw_min_8b, 933 ver_resp->mgmt_fw_bld_8b, ver_resp->mgmt_fw_rsvd_8b); 934 935 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 936 ver_resp->roce_fw_maj_8b, ver_resp->roce_fw_min_8b, 937 ver_resp->roce_fw_bld_8b, ver_resp->roce_fw_rsvd_8b); 938 } 939 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 940 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver); 941 if (rc) 942 return rc; 943 944 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 945 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API, 946 bp->hwrm_ver_supp); 947 if (rc) 948 return rc; 949 950 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 951 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver); 952 if (rc) 953 return rc; 954 955 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING, 956 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver); 957 if (rc) 958 return rc; 959 960 rc = bnxt_hwrm_nvm_get_dev_info(bp, &nvm_dev_info); 961 if (rc || 962 !(nvm_dev_info.flags & NVM_GET_DEV_INFO_RESP_FLAGS_FW_VER_VALID)) { 963 if (!bnxt_get_pkginfo(bp->dev, buf, sizeof(buf))) 964 return bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 965 DEVLINK_INFO_VERSION_GENERIC_FW, 966 buf); 967 return 0; 968 } 969 970 buf[0] = 0; 971 strncat(buf, nvm_dev_info.pkg_name, HWRM_FW_VER_STR_LEN); 972 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 973 DEVLINK_INFO_VERSION_GENERIC_FW, buf); 974 if (rc) 975 return rc; 976 977 snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 978 nvm_dev_info.hwrm_fw_major, nvm_dev_info.hwrm_fw_minor, 979 nvm_dev_info.hwrm_fw_build, nvm_dev_info.hwrm_fw_patch); 980 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 981 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver); 982 if (rc) 983 return rc; 984 985 snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 986 nvm_dev_info.mgmt_fw_major, nvm_dev_info.mgmt_fw_minor, 987 nvm_dev_info.mgmt_fw_build, nvm_dev_info.mgmt_fw_patch); 988 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 989 DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver); 990 if (rc) 991 return rc; 992 993 snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d", 994 nvm_dev_info.roce_fw_major, nvm_dev_info.roce_fw_minor, 995 nvm_dev_info.roce_fw_build, nvm_dev_info.roce_fw_patch); 996 rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED, 997 DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver); 998 if (rc) 999 return rc; 1000 1001 if (BNXT_CHIP_P5_PLUS(bp)) { 1002 rc = bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_SRT_PATCH); 1003 if (rc) 1004 return rc; 1005 } 1006 return bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_CRT_PATCH); 1007 1008} 1009 1010static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg, 1011 union devlink_param_value *val) 1012{ 1013 struct hwrm_nvm_get_variable_input *req = msg; 1014 struct bnxt_dl_nvm_param nvm_param; 1015 struct hwrm_err_output *resp; 1016 union bnxt_nvm_data *data; 1017 dma_addr_t data_dma_addr; 1018 int idx = 0, rc, i; 1019 1020 /* Get/Set NVM CFG parameter is supported only on PFs */ 1021 if (BNXT_VF(bp)) { 1022 hwrm_req_drop(bp, req); 1023 return -EPERM; 1024 } 1025 1026 for (i = 0; i < ARRAY_SIZE(nvm_params); i++) { 1027 if (nvm_params[i].id == param_id) { 1028 nvm_param = nvm_params[i]; 1029 break; 1030 } 1031 } 1032 1033 if (i == ARRAY_SIZE(nvm_params)) { 1034 hwrm_req_drop(bp, req); 1035 return -EOPNOTSUPP; 1036 } 1037 1038 if (nvm_param.dir_type == BNXT_NVM_PORT_CFG) 1039 idx = bp->pf.port_id; 1040 else if (nvm_param.dir_type == BNXT_NVM_FUNC_CFG) 1041 idx = bp->pf.fw_fid - BNXT_FIRST_PF_FID; 1042 1043 data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr); 1044 1045 if (!data) { 1046 hwrm_req_drop(bp, req); 1047 return -ENOMEM; 1048 } 1049 1050 req->dest_data_addr = cpu_to_le64(data_dma_addr); 1051 req->data_len = cpu_to_le16(nvm_param.nvm_num_bits); 1052 req->option_num = cpu_to_le16(nvm_param.offset); 1053 req->index_0 = cpu_to_le16(idx); 1054 if (idx) 1055 req->dimensions = cpu_to_le16(1); 1056 1057 resp = hwrm_req_hold(bp, req); 1058 if (req->req_type == cpu_to_le16(HWRM_NVM_SET_VARIABLE)) { 1059 bnxt_copy_to_nvm_data(data, val, nvm_param.nvm_num_bits, 1060 nvm_param.dl_num_bytes); 1061 rc = hwrm_req_send(bp, msg); 1062 } else { 1063 rc = hwrm_req_send_silent(bp, msg); 1064 if (!rc) { 1065 bnxt_copy_from_nvm_data(val, data, 1066 nvm_param.nvm_num_bits, 1067 nvm_param.dl_num_bytes); 1068 } else { 1069 if (resp->cmd_err == 1070 NVM_GET_VARIABLE_CMD_ERR_CODE_VAR_NOT_EXIST) 1071 rc = -EOPNOTSUPP; 1072 } 1073 } 1074 hwrm_req_drop(bp, req); 1075 if (rc == -EACCES) 1076 netdev_err(bp->dev, "PF does not have admin privileges to modify NVM config\n"); 1077 return rc; 1078} 1079 1080static int bnxt_dl_nvm_param_get(struct devlink *dl, u32 id, 1081 struct devlink_param_gset_ctx *ctx) 1082{ 1083 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 1084 struct hwrm_nvm_get_variable_input *req; 1085 int rc; 1086 1087 rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE); 1088 if (rc) 1089 return rc; 1090 1091 rc = bnxt_hwrm_nvm_req(bp, id, req, &ctx->val); 1092 if (!rc && id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK) 1093 ctx->val.vbool = !ctx->val.vbool; 1094 1095 return rc; 1096} 1097 1098static int bnxt_dl_nvm_param_set(struct devlink *dl, u32 id, 1099 struct devlink_param_gset_ctx *ctx) 1100{ 1101 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 1102 struct hwrm_nvm_set_variable_input *req; 1103 int rc; 1104 1105 rc = hwrm_req_init(bp, req, HWRM_NVM_SET_VARIABLE); 1106 if (rc) 1107 return rc; 1108 1109 if (id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK) 1110 ctx->val.vbool = !ctx->val.vbool; 1111 1112 return bnxt_hwrm_nvm_req(bp, id, req, &ctx->val); 1113} 1114 1115static int bnxt_dl_msix_validate(struct devlink *dl, u32 id, 1116 union devlink_param_value val, 1117 struct netlink_ext_ack *extack) 1118{ 1119 int max_val = -1; 1120 1121 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX) 1122 max_val = BNXT_MSIX_VEC_MAX; 1123 1124 if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN) 1125 max_val = BNXT_MSIX_VEC_MIN_MAX; 1126 1127 if (val.vu32 > max_val) { 1128 NL_SET_ERR_MSG_MOD(extack, "MSIX value is exceeding the range"); 1129 return -EINVAL; 1130 } 1131 1132 return 0; 1133} 1134 1135static int bnxt_remote_dev_reset_get(struct devlink *dl, u32 id, 1136 struct devlink_param_gset_ctx *ctx) 1137{ 1138 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 1139 1140 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF) 1141 return -EOPNOTSUPP; 1142 1143 ctx->val.vbool = bnxt_dl_get_remote_reset(dl); 1144 return 0; 1145} 1146 1147static int bnxt_remote_dev_reset_set(struct devlink *dl, u32 id, 1148 struct devlink_param_gset_ctx *ctx) 1149{ 1150 struct bnxt *bp = bnxt_get_bp_from_dl(dl); 1151 int rc; 1152 1153 rc = bnxt_hwrm_remote_dev_reset_set(bp, ctx->val.vbool); 1154 if (rc) 1155 return rc; 1156 1157 bnxt_dl_set_remote_reset(dl, ctx->val.vbool); 1158 return rc; 1159} 1160 1161static const struct devlink_param bnxt_dl_params[] = { 1162 DEVLINK_PARAM_GENERIC(ENABLE_SRIOV, 1163 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1164 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1165 NULL), 1166 DEVLINK_PARAM_GENERIC(IGNORE_ARI, 1167 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1168 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1169 NULL), 1170 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MAX, 1171 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1172 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1173 bnxt_dl_msix_validate), 1174 DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MIN, 1175 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1176 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1177 bnxt_dl_msix_validate), 1178 DEVLINK_PARAM_DRIVER(BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, 1179 "gre_ver_check", DEVLINK_PARAM_TYPE_BOOL, 1180 BIT(DEVLINK_PARAM_CMODE_PERMANENT), 1181 bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set, 1182 NULL), 1183 /* keep REMOTE_DEV_RESET last, it is excluded based on caps */ 1184 DEVLINK_PARAM_GENERIC(ENABLE_REMOTE_DEV_RESET, 1185 BIT(DEVLINK_PARAM_CMODE_RUNTIME), 1186 bnxt_remote_dev_reset_get, 1187 bnxt_remote_dev_reset_set, NULL), 1188}; 1189 1190static int bnxt_dl_params_register(struct bnxt *bp) 1191{ 1192 int num_params = ARRAY_SIZE(bnxt_dl_params); 1193 int rc; 1194 1195 if (bp->hwrm_spec_code < 0x10600) 1196 return 0; 1197 1198 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF) 1199 num_params--; 1200 1201 rc = devlink_params_register(bp->dl, bnxt_dl_params, num_params); 1202 if (rc) 1203 netdev_warn(bp->dev, "devlink_params_register failed. rc=%d\n", 1204 rc); 1205 return rc; 1206} 1207 1208static void bnxt_dl_params_unregister(struct bnxt *bp) 1209{ 1210 int num_params = ARRAY_SIZE(bnxt_dl_params); 1211 1212 if (bp->hwrm_spec_code < 0x10600) 1213 return; 1214 1215 if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF) 1216 num_params--; 1217 1218 devlink_params_unregister(bp->dl, bnxt_dl_params, num_params); 1219} 1220 1221int bnxt_dl_register(struct bnxt *bp) 1222{ 1223 const struct devlink_ops *devlink_ops; 1224 struct devlink_port_attrs attrs = {}; 1225 struct bnxt_dl *bp_dl; 1226 struct devlink *dl; 1227 int rc; 1228 1229 if (BNXT_PF(bp)) 1230 devlink_ops = &bnxt_dl_ops; 1231 else 1232 devlink_ops = &bnxt_vf_dl_ops; 1233 1234 dl = devlink_alloc(devlink_ops, sizeof(struct bnxt_dl), &bp->pdev->dev); 1235 if (!dl) { 1236 netdev_warn(bp->dev, "devlink_alloc failed\n"); 1237 return -ENOMEM; 1238 } 1239 1240 bp->dl = dl; 1241 bp_dl = devlink_priv(dl); 1242 bp_dl->bp = bp; 1243 bnxt_dl_set_remote_reset(dl, true); 1244 1245 /* Add switchdev eswitch mode setting, if SRIOV supported */ 1246 if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV) && 1247 bp->hwrm_spec_code > 0x10803) 1248 bp->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY; 1249 1250 if (!BNXT_PF(bp)) 1251 goto out; 1252 1253 attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL; 1254 attrs.phys.port_number = bp->pf.port_id; 1255 memcpy(attrs.switch_id.id, bp->dsn, sizeof(bp->dsn)); 1256 attrs.switch_id.id_len = sizeof(bp->dsn); 1257 devlink_port_attrs_set(&bp->dl_port, &attrs); 1258 rc = devlink_port_register(dl, &bp->dl_port, bp->pf.port_id); 1259 if (rc) { 1260 netdev_err(bp->dev, "devlink_port_register failed\n"); 1261 goto err_dl_free; 1262 } 1263 1264 rc = bnxt_dl_params_register(bp); 1265 if (rc) 1266 goto err_dl_port_unreg; 1267 1268out: 1269 devlink_register(dl); 1270 return 0; 1271 1272err_dl_port_unreg: 1273 devlink_port_unregister(&bp->dl_port); 1274err_dl_free: 1275 devlink_free(dl); 1276 return rc; 1277} 1278 1279void bnxt_dl_unregister(struct bnxt *bp) 1280{ 1281 struct devlink *dl = bp->dl; 1282 1283 devlink_unregister(dl); 1284 if (BNXT_PF(bp)) { 1285 bnxt_dl_params_unregister(bp); 1286 devlink_port_unregister(&bp->dl_port); 1287 } 1288 devlink_free(dl); 1289} 1290