1 /* SPDX-License-Identifier: BSD-3-Clause */ 2 /* Copyright (c) 2021, Intel Corporation 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * 3. Neither the name of the Intel Corporation nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 /*$FreeBSD$*/ 32 33 /** 34 * @file if_ice_iflib.c 35 * @brief iflib driver implementation 36 * 37 * Contains the main entry point for the iflib driver implementation. It 38 * implements the various ifdi driver methods, and sets up the module and 39 * driver values to load an iflib driver. 40 */ 41 42 #include "ice_iflib.h" 43 #include "ice_drv_info.h" 44 #include "ice_switch.h" 45 #include "ice_sched.h" 46 47 #include <sys/module.h> 48 #include <sys/sockio.h> 49 #include <sys/smp.h> 50 #include <dev/pci/pcivar.h> 51 #include <dev/pci/pcireg.h> 52 53 /* 54 * Device method prototypes 55 */ 56 57 static void *ice_register(device_t); 58 static int ice_if_attach_pre(if_ctx_t); 59 static int ice_attach_pre_recovery_mode(struct ice_softc *sc); 60 static int ice_if_attach_post(if_ctx_t); 61 static void ice_attach_post_recovery_mode(struct ice_softc *sc); 62 static int ice_if_detach(if_ctx_t); 63 static int ice_if_tx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int ntxqs, int ntxqsets); 64 static int ice_if_rx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int nqs, int nqsets); 65 static int ice_if_msix_intr_assign(if_ctx_t ctx, int msix); 66 static void ice_if_queues_free(if_ctx_t ctx); 67 static int ice_if_mtu_set(if_ctx_t ctx, uint32_t mtu); 68 static void ice_if_intr_enable(if_ctx_t ctx); 69 static void ice_if_intr_disable(if_ctx_t ctx); 70 static int ice_if_rx_queue_intr_enable(if_ctx_t ctx, uint16_t rxqid); 71 static int ice_if_tx_queue_intr_enable(if_ctx_t ctx, uint16_t txqid); 72 static int ice_if_promisc_set(if_ctx_t ctx, int flags); 73 static void ice_if_media_status(if_ctx_t ctx, struct ifmediareq *ifmr); 74 static int ice_if_media_change(if_ctx_t ctx); 75 static void ice_if_init(if_ctx_t ctx); 76 static void ice_if_timer(if_ctx_t ctx, uint16_t qid); 77 static void ice_if_update_admin_status(if_ctx_t ctx); 78 static void ice_if_multi_set(if_ctx_t ctx); 79 static void ice_if_vlan_register(if_ctx_t ctx, u16 vtag); 80 static void ice_if_vlan_unregister(if_ctx_t ctx, u16 vtag); 81 static void ice_if_stop(if_ctx_t ctx); 82 static uint64_t ice_if_get_counter(if_ctx_t ctx, ift_counter counter); 83 static int ice_if_priv_ioctl(if_ctx_t ctx, u_long command, caddr_t data); 84 static int ice_if_i2c_req(if_ctx_t ctx, struct ifi2creq *req); 85 static int ice_if_suspend(if_ctx_t ctx); 86 static int ice_if_resume(if_ctx_t ctx); 87 88 static int ice_msix_que(void *arg); 89 static int ice_msix_admin(void *arg); 90 91 /* 92 * Helper function prototypes 93 */ 94 static int ice_pci_mapping(struct ice_softc *sc); 95 static void ice_free_pci_mapping(struct ice_softc *sc); 96 static void ice_update_link_status(struct ice_softc *sc, bool update_media); 97 static void ice_init_device_features(struct ice_softc *sc); 98 static void ice_init_tx_tracking(struct ice_vsi *vsi); 99 static void ice_handle_reset_event(struct ice_softc *sc); 100 static void ice_handle_pf_reset_request(struct ice_softc *sc); 101 static void ice_prepare_for_reset(struct ice_softc *sc); 102 static int ice_rebuild_pf_vsi_qmap(struct ice_softc *sc); 103 static void ice_rebuild(struct ice_softc *sc); 104 static void ice_rebuild_recovery_mode(struct ice_softc *sc); 105 static void ice_free_irqvs(struct ice_softc *sc); 106 static void ice_update_rx_mbuf_sz(struct ice_softc *sc); 107 static void ice_poll_for_media_avail(struct ice_softc *sc); 108 static void ice_setup_scctx(struct ice_softc *sc); 109 static int ice_allocate_msix(struct ice_softc *sc); 110 static void ice_admin_timer(void *arg); 111 static void ice_transition_recovery_mode(struct ice_softc *sc); 112 static void ice_transition_safe_mode(struct ice_softc *sc); 113 114 /* 115 * Device Interface Declaration 116 */ 117 118 /** 119 * @var ice_methods 120 * @brief ice driver method entry points 121 * 122 * List of device methods implementing the generic device interface used by 123 * the device stack to interact with the ice driver. Since this is an iflib 124 * driver, most of the methods point to the generic iflib implementation. 125 */ 126 static device_method_t ice_methods[] = { 127 /* Device interface */ 128 DEVMETHOD(device_register, ice_register), 129 DEVMETHOD(device_probe, iflib_device_probe_vendor), 130 DEVMETHOD(device_attach, iflib_device_attach), 131 DEVMETHOD(device_detach, iflib_device_detach), 132 DEVMETHOD(device_shutdown, iflib_device_shutdown), 133 DEVMETHOD(device_suspend, iflib_device_suspend), 134 DEVMETHOD(device_resume, iflib_device_resume), 135 DEVMETHOD_END 136 }; 137 138 /** 139 * @var ice_iflib_methods 140 * @brief iflib method entry points 141 * 142 * List of device methods used by the iflib stack to interact with this 143 * driver. These are the real main entry points used to interact with this 144 * driver. 145 */ 146 static device_method_t ice_iflib_methods[] = { 147 DEVMETHOD(ifdi_attach_pre, ice_if_attach_pre), 148 DEVMETHOD(ifdi_attach_post, ice_if_attach_post), 149 DEVMETHOD(ifdi_detach, ice_if_detach), 150 DEVMETHOD(ifdi_tx_queues_alloc, ice_if_tx_queues_alloc), 151 DEVMETHOD(ifdi_rx_queues_alloc, ice_if_rx_queues_alloc), 152 DEVMETHOD(ifdi_msix_intr_assign, ice_if_msix_intr_assign), 153 DEVMETHOD(ifdi_queues_free, ice_if_queues_free), 154 DEVMETHOD(ifdi_mtu_set, ice_if_mtu_set), 155 DEVMETHOD(ifdi_intr_enable, ice_if_intr_enable), 156 DEVMETHOD(ifdi_intr_disable, ice_if_intr_disable), 157 DEVMETHOD(ifdi_rx_queue_intr_enable, ice_if_rx_queue_intr_enable), 158 DEVMETHOD(ifdi_tx_queue_intr_enable, ice_if_tx_queue_intr_enable), 159 DEVMETHOD(ifdi_promisc_set, ice_if_promisc_set), 160 DEVMETHOD(ifdi_media_status, ice_if_media_status), 161 DEVMETHOD(ifdi_media_change, ice_if_media_change), 162 DEVMETHOD(ifdi_init, ice_if_init), 163 DEVMETHOD(ifdi_stop, ice_if_stop), 164 DEVMETHOD(ifdi_timer, ice_if_timer), 165 DEVMETHOD(ifdi_update_admin_status, ice_if_update_admin_status), 166 DEVMETHOD(ifdi_multi_set, ice_if_multi_set), 167 DEVMETHOD(ifdi_vlan_register, ice_if_vlan_register), 168 DEVMETHOD(ifdi_vlan_unregister, ice_if_vlan_unregister), 169 DEVMETHOD(ifdi_get_counter, ice_if_get_counter), 170 DEVMETHOD(ifdi_priv_ioctl, ice_if_priv_ioctl), 171 DEVMETHOD(ifdi_i2c_req, ice_if_i2c_req), 172 DEVMETHOD(ifdi_suspend, ice_if_suspend), 173 DEVMETHOD(ifdi_resume, ice_if_resume), 174 DEVMETHOD_END 175 }; 176 177 /** 178 * @var ice_driver 179 * @brief driver structure for the generic device stack 180 * 181 * driver_t definition used to setup the generic device methods. 182 */ 183 static driver_t ice_driver = { 184 .name = "ice", 185 .methods = ice_methods, 186 .size = sizeof(struct ice_softc), 187 }; 188 189 /** 190 * @var ice_iflib_driver 191 * @brief driver structure for the iflib stack 192 * 193 * driver_t definition used to setup the iflib device methods. 194 */ 195 static driver_t ice_iflib_driver = { 196 .name = "ice", 197 .methods = ice_iflib_methods, 198 .size = sizeof(struct ice_softc), 199 }; 200 201 extern struct if_txrx ice_txrx; 202 extern struct if_txrx ice_recovery_txrx; 203 204 /** 205 * @var ice_sctx 206 * @brief ice driver shared context 207 * 208 * Structure defining shared values (context) that is used by all instances of 209 * the device. Primarily used to setup details about how the iflib stack 210 * should treat this driver. Also defines the default, minimum, and maximum 211 * number of descriptors in each ring. 212 */ 213 static struct if_shared_ctx ice_sctx = { 214 .isc_magic = IFLIB_MAGIC, 215 .isc_q_align = PAGE_SIZE, 216 217 .isc_tx_maxsize = ICE_MAX_FRAME_SIZE, 218 /* We could technically set this as high as ICE_MAX_DMA_SEG_SIZE, but 219 * that doesn't make sense since that would be larger than the maximum 220 * size of a single packet. 221 */ 222 .isc_tx_maxsegsize = ICE_MAX_FRAME_SIZE, 223 224 /* XXX: This is only used by iflib to ensure that 225 * scctx->isc_tx_tso_size_max + the VLAN header is a valid size. 226 */ 227 .isc_tso_maxsize = ICE_TSO_SIZE + sizeof(struct ether_vlan_header), 228 /* XXX: This is used by iflib to set the number of segments in the TSO 229 * DMA tag. However, scctx->isc_tx_tso_segsize_max is used to set the 230 * related ifnet parameter. 231 */ 232 .isc_tso_maxsegsize = ICE_MAX_DMA_SEG_SIZE, 233 234 .isc_rx_maxsize = ICE_MAX_FRAME_SIZE, 235 .isc_rx_nsegments = ICE_MAX_RX_SEGS, 236 .isc_rx_maxsegsize = ICE_MAX_FRAME_SIZE, 237 238 .isc_nfl = 1, 239 .isc_ntxqs = 1, 240 .isc_nrxqs = 1, 241 242 .isc_admin_intrcnt = 1, 243 .isc_vendor_info = ice_vendor_info_array, 244 .isc_driver_version = __DECONST(char *, ice_driver_version), 245 .isc_driver = &ice_iflib_driver, 246 247 /* 248 * IFLIB_NEED_SCRATCH ensures that mbufs have scratch space available 249 * for hardware checksum offload 250 * 251 * IFLIB_TSO_INIT_IP ensures that the TSO packets have zeroed out the 252 * IP sum field, required by our hardware to calculate valid TSO 253 * checksums. 254 * 255 * IFLIB_ADMIN_ALWAYS_RUN ensures that the administrative task runs 256 * even when the interface is down. 257 * 258 * IFLIB_SKIP_MSIX allows the driver to handle allocating MSI-X 259 * vectors manually instead of relying on iflib code to do this. 260 */ 261 .isc_flags = IFLIB_NEED_SCRATCH | IFLIB_TSO_INIT_IP | 262 IFLIB_ADMIN_ALWAYS_RUN | IFLIB_SKIP_MSIX, 263 264 .isc_nrxd_min = {ICE_MIN_DESC_COUNT}, 265 .isc_ntxd_min = {ICE_MIN_DESC_COUNT}, 266 .isc_nrxd_max = {ICE_IFLIB_MAX_DESC_COUNT}, 267 .isc_ntxd_max = {ICE_IFLIB_MAX_DESC_COUNT}, 268 .isc_nrxd_default = {ICE_DEFAULT_DESC_COUNT}, 269 .isc_ntxd_default = {ICE_DEFAULT_DESC_COUNT}, 270 }; 271 272 DRIVER_MODULE(ice, pci, ice_driver, ice_module_event_handler, NULL); 273 274 MODULE_VERSION(ice, 1); 275 MODULE_DEPEND(ice, pci, 1, 1, 1); 276 MODULE_DEPEND(ice, ether, 1, 1, 1); 277 MODULE_DEPEND(ice, iflib, 1, 1, 1); 278 279 IFLIB_PNP_INFO(pci, ice, ice_vendor_info_array); 280 281 /* Static driver-wide sysctls */ 282 #include "ice_iflib_sysctls.h" 283 284 /** 285 * ice_pci_mapping - Map PCI BAR memory 286 * @sc: device private softc 287 * 288 * Map PCI BAR 0 for device operation. 289 */ 290 static int 291 ice_pci_mapping(struct ice_softc *sc) 292 { 293 int rc; 294 295 /* Map BAR0 */ 296 rc = ice_map_bar(sc->dev, &sc->bar0, 0); 297 if (rc) 298 return rc; 299 300 return 0; 301 } 302 303 /** 304 * ice_free_pci_mapping - Release PCI BAR memory 305 * @sc: device private softc 306 * 307 * Release PCI BARs which were previously mapped by ice_pci_mapping(). 308 */ 309 static void 310 ice_free_pci_mapping(struct ice_softc *sc) 311 { 312 /* Free BAR0 */ 313 ice_free_bar(sc->dev, &sc->bar0); 314 } 315 316 /* 317 * Device methods 318 */ 319 320 /** 321 * ice_register - register device method callback 322 * @dev: the device being registered 323 * 324 * Returns a pointer to the shared context structure, which is used by iflib. 325 */ 326 static void * 327 ice_register(device_t dev __unused) 328 { 329 return &ice_sctx; 330 } /* ice_register */ 331 332 /** 333 * ice_setup_scctx - Setup the iflib softc context structure 334 * @sc: the device private structure 335 * 336 * Setup the parameters in if_softc_ctx_t structure used by the iflib stack 337 * when loading. 338 */ 339 static void 340 ice_setup_scctx(struct ice_softc *sc) 341 { 342 if_softc_ctx_t scctx = sc->scctx; 343 struct ice_hw *hw = &sc->hw; 344 bool safe_mode, recovery_mode; 345 346 safe_mode = ice_is_bit_set(sc->feat_en, ICE_FEATURE_SAFE_MODE); 347 recovery_mode = ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE); 348 349 /* 350 * If the driver loads in Safe mode or Recovery mode, limit iflib to 351 * a single queue pair. 352 */ 353 if (safe_mode || recovery_mode) { 354 scctx->isc_ntxqsets = scctx->isc_nrxqsets = 1; 355 scctx->isc_ntxqsets_max = 1; 356 scctx->isc_nrxqsets_max = 1; 357 } else { 358 /* 359 * iflib initially sets the isc_ntxqsets and isc_nrxqsets to 360 * the values of the override sysctls. Cache these initial 361 * values so that the driver can be aware of what the iflib 362 * sysctl value is when setting up MSI-X vectors. 363 */ 364 sc->ifc_sysctl_ntxqs = scctx->isc_ntxqsets; 365 sc->ifc_sysctl_nrxqs = scctx->isc_nrxqsets; 366 367 if (scctx->isc_ntxqsets == 0) 368 scctx->isc_ntxqsets = hw->func_caps.common_cap.rss_table_size; 369 if (scctx->isc_nrxqsets == 0) 370 scctx->isc_nrxqsets = hw->func_caps.common_cap.rss_table_size; 371 372 scctx->isc_ntxqsets_max = hw->func_caps.common_cap.num_txq; 373 scctx->isc_nrxqsets_max = hw->func_caps.common_cap.num_rxq; 374 375 /* 376 * Sanity check that the iflib sysctl values are within the 377 * maximum supported range. 378 */ 379 if (sc->ifc_sysctl_ntxqs > scctx->isc_ntxqsets_max) 380 sc->ifc_sysctl_ntxqs = scctx->isc_ntxqsets_max; 381 if (sc->ifc_sysctl_nrxqs > scctx->isc_nrxqsets_max) 382 sc->ifc_sysctl_nrxqs = scctx->isc_nrxqsets_max; 383 } 384 385 scctx->isc_txqsizes[0] = roundup2(scctx->isc_ntxd[0] 386 * sizeof(struct ice_tx_desc), DBA_ALIGN); 387 scctx->isc_rxqsizes[0] = roundup2(scctx->isc_nrxd[0] 388 * sizeof(union ice_32b_rx_flex_desc), DBA_ALIGN); 389 390 scctx->isc_tx_nsegments = ICE_MAX_TX_SEGS; 391 scctx->isc_tx_tso_segments_max = ICE_MAX_TSO_SEGS; 392 scctx->isc_tx_tso_size_max = ICE_TSO_SIZE; 393 scctx->isc_tx_tso_segsize_max = ICE_MAX_DMA_SEG_SIZE; 394 395 scctx->isc_msix_bar = PCIR_BAR(ICE_MSIX_BAR); 396 scctx->isc_rss_table_size = hw->func_caps.common_cap.rss_table_size; 397 398 /* 399 * If the driver loads in recovery mode, disable Tx/Rx functionality 400 */ 401 if (recovery_mode) 402 scctx->isc_txrx = &ice_recovery_txrx; 403 else 404 scctx->isc_txrx = &ice_txrx; 405 406 /* 407 * If the driver loads in Safe mode or Recovery mode, disable 408 * advanced features including hardware offloads. 409 */ 410 if (safe_mode || recovery_mode) { 411 scctx->isc_capenable = ICE_SAFE_CAPS; 412 scctx->isc_tx_csum_flags = 0; 413 } else { 414 scctx->isc_capenable = ICE_FULL_CAPS; 415 scctx->isc_tx_csum_flags = ICE_CSUM_OFFLOAD; 416 } 417 418 scctx->isc_capabilities = scctx->isc_capenable; 419 } /* ice_setup_scctx */ 420 421 /** 422 * ice_if_attach_pre - Early device attach logic 423 * @ctx: the iflib context structure 424 * 425 * Called by iflib during the attach process. Earliest main driver entry 426 * point which performs necessary hardware and driver initialization. Called 427 * before the Tx and Rx queues are allocated. 428 */ 429 static int 430 ice_if_attach_pre(if_ctx_t ctx) 431 { 432 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 433 enum ice_fw_modes fw_mode; 434 enum ice_status status; 435 if_softc_ctx_t scctx; 436 struct ice_hw *hw; 437 device_t dev; 438 int err; 439 440 device_printf(iflib_get_dev(ctx), "Loading the iflib ice driver\n"); 441 442 ice_set_state(&sc->state, ICE_STATE_ATTACHING); 443 444 sc->ctx = ctx; 445 sc->media = iflib_get_media(ctx); 446 sc->sctx = iflib_get_sctx(ctx); 447 sc->iflib_ctx_lock = iflib_ctx_lock_get(ctx); 448 449 dev = sc->dev = iflib_get_dev(ctx); 450 scctx = sc->scctx = iflib_get_softc_ctx(ctx); 451 452 hw = &sc->hw; 453 hw->back = sc; 454 455 snprintf(sc->admin_mtx_name, sizeof(sc->admin_mtx_name), 456 "%s:admin", device_get_nameunit(dev)); 457 mtx_init(&sc->admin_mtx, sc->admin_mtx_name, NULL, MTX_DEF); 458 callout_init_mtx(&sc->admin_timer, &sc->admin_mtx, 0); 459 460 ASSERT_CTX_LOCKED(sc); 461 462 if (ice_pci_mapping(sc)) { 463 err = (ENXIO); 464 goto destroy_admin_timer; 465 } 466 467 /* Save off the PCI information */ 468 ice_save_pci_info(hw, dev); 469 470 /* create tunables as early as possible */ 471 ice_add_device_tunables(sc); 472 473 /* Setup ControlQ lengths */ 474 ice_set_ctrlq_len(hw); 475 476 fw_mode = ice_get_fw_mode(hw); 477 if (fw_mode == ICE_FW_MODE_REC) { 478 device_printf(dev, "Firmware recovery mode detected. Limiting functionality. Refer to Intel(R) Ethernet Adapters and Devices User Guide for details on firmware recovery mode.\n"); 479 480 err = ice_attach_pre_recovery_mode(sc); 481 if (err) 482 goto free_pci_mapping; 483 484 return (0); 485 } 486 487 /* Initialize the hw data structure */ 488 status = ice_init_hw(hw); 489 if (status) { 490 if (status == ICE_ERR_FW_API_VER) { 491 /* Enter recovery mode, so that the driver remains 492 * loaded. This way, if the system administrator 493 * cannot update the driver, they may still attempt to 494 * downgrade the NVM. 495 */ 496 err = ice_attach_pre_recovery_mode(sc); 497 if (err) 498 goto free_pci_mapping; 499 500 return (0); 501 } else { 502 err = EIO; 503 device_printf(dev, "Unable to initialize hw, err %s aq_err %s\n", 504 ice_status_str(status), 505 ice_aq_str(hw->adminq.sq_last_status)); 506 } 507 goto free_pci_mapping; 508 } 509 510 /* Notify firmware of the device driver version */ 511 err = ice_send_version(sc); 512 if (err) 513 goto deinit_hw; 514 515 ice_load_pkg_file(sc); 516 517 err = ice_init_link_events(sc); 518 if (err) { 519 device_printf(dev, "ice_init_link_events failed: %s\n", 520 ice_err_str(err)); 521 goto deinit_hw; 522 } 523 524 ice_print_nvm_version(sc); 525 526 ice_init_device_features(sc); 527 528 /* Setup the MAC address */ 529 iflib_set_mac(ctx, hw->port_info->mac.lan_addr); 530 531 /* Setup the iflib softc context structure */ 532 ice_setup_scctx(sc); 533 534 /* Initialize the Tx queue manager */ 535 err = ice_resmgr_init(&sc->tx_qmgr, hw->func_caps.common_cap.num_txq); 536 if (err) { 537 device_printf(dev, "Unable to initialize Tx queue manager: %s\n", 538 ice_err_str(err)); 539 goto deinit_hw; 540 } 541 542 /* Initialize the Rx queue manager */ 543 err = ice_resmgr_init(&sc->rx_qmgr, hw->func_caps.common_cap.num_rxq); 544 if (err) { 545 device_printf(dev, "Unable to initialize Rx queue manager: %s\n", 546 ice_err_str(err)); 547 goto free_tx_qmgr; 548 } 549 550 /* Initialize the interrupt resource manager */ 551 err = ice_alloc_intr_tracking(sc); 552 if (err) 553 /* Errors are already printed */ 554 goto free_rx_qmgr; 555 556 /* Determine maximum number of VSIs we'll prepare for */ 557 sc->num_available_vsi = min(ICE_MAX_VSI_AVAILABLE, 558 hw->func_caps.guar_num_vsi); 559 560 if (!sc->num_available_vsi) { 561 err = EIO; 562 device_printf(dev, "No VSIs allocated to host\n"); 563 goto free_intr_tracking; 564 } 565 566 /* Allocate storage for the VSI pointers */ 567 sc->all_vsi = (struct ice_vsi **) 568 malloc(sizeof(struct ice_vsi *) * sc->num_available_vsi, 569 M_ICE, M_WAITOK | M_ZERO); 570 if (!sc->all_vsi) { 571 err = ENOMEM; 572 device_printf(dev, "Unable to allocate VSI array\n"); 573 goto free_intr_tracking; 574 } 575 576 /* 577 * Prepare the statically allocated primary PF VSI in the softc 578 * structure. Other VSIs will be dynamically allocated as needed. 579 */ 580 ice_setup_pf_vsi(sc); 581 582 err = ice_alloc_vsi_qmap(&sc->pf_vsi, scctx->isc_ntxqsets_max, 583 scctx->isc_nrxqsets_max); 584 if (err) { 585 device_printf(dev, "Unable to allocate VSI Queue maps\n"); 586 goto free_main_vsi; 587 } 588 589 /* Allocate MSI-X vectors (due to isc_flags IFLIB_SKIP_MSIX) */ 590 err = ice_allocate_msix(sc); 591 if (err) 592 goto free_main_vsi; 593 594 return 0; 595 596 free_main_vsi: 597 /* ice_release_vsi will free the queue maps if they were allocated */ 598 ice_release_vsi(&sc->pf_vsi); 599 free(sc->all_vsi, M_ICE); 600 sc->all_vsi = NULL; 601 free_intr_tracking: 602 ice_free_intr_tracking(sc); 603 free_rx_qmgr: 604 ice_resmgr_destroy(&sc->rx_qmgr); 605 free_tx_qmgr: 606 ice_resmgr_destroy(&sc->tx_qmgr); 607 deinit_hw: 608 ice_deinit_hw(hw); 609 free_pci_mapping: 610 ice_free_pci_mapping(sc); 611 destroy_admin_timer: 612 mtx_lock(&sc->admin_mtx); 613 callout_stop(&sc->admin_timer); 614 mtx_unlock(&sc->admin_mtx); 615 mtx_destroy(&sc->admin_mtx); 616 return err; 617 } /* ice_if_attach_pre */ 618 619 /** 620 * ice_attach_pre_recovery_mode - Limited driver attach_pre for FW recovery 621 * @sc: the device private softc 622 * 623 * Loads the device driver in limited Firmware Recovery mode, intended to 624 * allow users to update the firmware to attempt to recover the device. 625 * 626 * @remark We may enter recovery mode in case either (a) the firmware is 627 * detected to be in an invalid state and must be re-programmed, or (b) the 628 * driver detects that the loaded firmware has a non-compatible API version 629 * that the driver cannot operate with. 630 */ 631 static int 632 ice_attach_pre_recovery_mode(struct ice_softc *sc) 633 { 634 ice_set_state(&sc->state, ICE_STATE_RECOVERY_MODE); 635 636 /* Setup the iflib softc context */ 637 ice_setup_scctx(sc); 638 639 /* Setup the PF VSI back pointer */ 640 sc->pf_vsi.sc = sc; 641 642 /* 643 * We still need to allocate MSI-X vectors since we need one vector to 644 * run the administrative admin interrupt 645 */ 646 return ice_allocate_msix(sc); 647 } 648 649 /** 650 * ice_update_link_status - notify OS of link state change 651 * @sc: device private softc structure 652 * @update_media: true if we should update media even if link didn't change 653 * 654 * Called to notify iflib core of link status changes. Should be called once 655 * during attach_post, and whenever link status changes during runtime. 656 * 657 * This call only updates the currently supported media types if the link 658 * status changed, or if update_media is set to true. 659 */ 660 static void 661 ice_update_link_status(struct ice_softc *sc, bool update_media) 662 { 663 struct ice_hw *hw = &sc->hw; 664 enum ice_status status; 665 666 /* Never report link up when in recovery mode */ 667 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 668 return; 669 670 /* Report link status to iflib only once each time it changes */ 671 if (!ice_testandset_state(&sc->state, ICE_STATE_LINK_STATUS_REPORTED)) { 672 if (sc->link_up) { /* link is up */ 673 uint64_t baudrate = ice_aq_speed_to_rate(sc->hw.port_info); 674 675 ice_set_default_local_lldp_mib(sc); 676 677 iflib_link_state_change(sc->ctx, LINK_STATE_UP, baudrate); 678 679 ice_link_up_msg(sc); 680 681 update_media = true; 682 } else { /* link is down */ 683 iflib_link_state_change(sc->ctx, LINK_STATE_DOWN, 0); 684 685 update_media = true; 686 } 687 } 688 689 /* Update the supported media types */ 690 if (update_media) { 691 status = ice_add_media_types(sc, sc->media); 692 if (status) 693 device_printf(sc->dev, "Error adding device media types: %s aq_err %s\n", 694 ice_status_str(status), 695 ice_aq_str(hw->adminq.sq_last_status)); 696 } 697 698 /* TODO: notify VFs of link state change */ 699 } 700 701 /** 702 * ice_if_attach_post - Late device attach logic 703 * @ctx: the iflib context structure 704 * 705 * Called by iflib to finish up attaching the device. Performs any attach 706 * logic which must wait until after the Tx and Rx queues have been 707 * allocated. 708 */ 709 static int 710 ice_if_attach_post(if_ctx_t ctx) 711 { 712 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 713 if_t ifp = iflib_get_ifp(ctx); 714 int err; 715 716 ASSERT_CTX_LOCKED(sc); 717 718 /* We don't yet support loading if MSI-X is not supported */ 719 if (sc->scctx->isc_intr != IFLIB_INTR_MSIX) { 720 device_printf(sc->dev, "The ice driver does not support loading without MSI-X\n"); 721 return (ENOTSUP); 722 } 723 724 /* The ifnet structure hasn't yet been initialized when the attach_pre 725 * handler is called, so wait until attach_post to setup the 726 * isc_max_frame_size. 727 */ 728 729 sc->ifp = ifp; 730 sc->scctx->isc_max_frame_size = ifp->if_mtu + 731 ETHER_HDR_LEN + ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN; 732 733 /* 734 * If we are in recovery mode, only perform a limited subset of 735 * initialization to support NVM recovery. 736 */ 737 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) { 738 ice_attach_post_recovery_mode(sc); 739 return (0); 740 } 741 742 sc->pf_vsi.max_frame_size = sc->scctx->isc_max_frame_size; 743 744 err = ice_initialize_vsi(&sc->pf_vsi); 745 if (err) { 746 device_printf(sc->dev, "Unable to initialize Main VSI: %s\n", 747 ice_err_str(err)); 748 return err; 749 } 750 751 /* Enable FW health event reporting */ 752 ice_init_health_events(sc); 753 754 /* Configure the main PF VSI for RSS */ 755 err = ice_config_rss(&sc->pf_vsi); 756 if (err) { 757 device_printf(sc->dev, 758 "Unable to configure RSS for the main VSI, err %s\n", 759 ice_err_str(err)); 760 return err; 761 } 762 763 /* Configure switch to drop transmitted LLDP and PAUSE frames */ 764 err = ice_cfg_pf_ethertype_filters(sc); 765 if (err) 766 return err; 767 768 ice_get_and_print_bus_info(sc); 769 770 ice_set_link_management_mode(sc); 771 772 ice_init_saved_phy_cfg(sc); 773 774 ice_cfg_pba_num(sc); 775 776 ice_add_device_sysctls(sc); 777 778 /* Get DCBX/LLDP state and start DCBX agent */ 779 ice_init_dcb_setup(sc); 780 781 /* Setup link configuration parameters */ 782 ice_init_link_configuration(sc); 783 ice_update_link_status(sc, true); 784 785 /* Configure interrupt causes for the administrative interrupt */ 786 ice_configure_misc_interrupts(sc); 787 788 /* Enable ITR 0 right away, so that we can handle admin interrupts */ 789 ice_enable_intr(&sc->hw, sc->irqvs[0].me); 790 791 /* Start the admin timer */ 792 mtx_lock(&sc->admin_mtx); 793 callout_reset(&sc->admin_timer, hz/2, ice_admin_timer, sc); 794 mtx_unlock(&sc->admin_mtx); 795 796 ice_clear_state(&sc->state, ICE_STATE_ATTACHING); 797 798 return 0; 799 } /* ice_if_attach_post */ 800 801 /** 802 * ice_attach_post_recovery_mode - Limited driver attach_post for FW recovery 803 * @sc: the device private softc 804 * 805 * Performs minimal work to prepare the driver to recover an NVM in case the 806 * firmware is in recovery mode. 807 */ 808 static void 809 ice_attach_post_recovery_mode(struct ice_softc *sc) 810 { 811 /* Configure interrupt causes for the administrative interrupt */ 812 ice_configure_misc_interrupts(sc); 813 814 /* Enable ITR 0 right away, so that we can handle admin interrupts */ 815 ice_enable_intr(&sc->hw, sc->irqvs[0].me); 816 817 /* Start the admin timer */ 818 mtx_lock(&sc->admin_mtx); 819 callout_reset(&sc->admin_timer, hz/2, ice_admin_timer, sc); 820 mtx_unlock(&sc->admin_mtx); 821 822 ice_clear_state(&sc->state, ICE_STATE_ATTACHING); 823 } 824 825 /** 826 * ice_free_irqvs - Free IRQ vector memory 827 * @sc: the device private softc structure 828 * 829 * Free IRQ vector memory allocated during ice_if_msix_intr_assign. 830 */ 831 static void 832 ice_free_irqvs(struct ice_softc *sc) 833 { 834 struct ice_vsi *vsi = &sc->pf_vsi; 835 if_ctx_t ctx = sc->ctx; 836 int i; 837 838 /* If the irqvs array is NULL, then there are no vectors to free */ 839 if (sc->irqvs == NULL) 840 return; 841 842 /* Free the IRQ vectors */ 843 for (i = 0; i < sc->num_irq_vectors; i++) 844 iflib_irq_free(ctx, &sc->irqvs[i].irq); 845 846 /* Clear the irqv pointers */ 847 for (i = 0; i < vsi->num_rx_queues; i++) 848 vsi->rx_queues[i].irqv = NULL; 849 850 for (i = 0; i < vsi->num_tx_queues; i++) 851 vsi->tx_queues[i].irqv = NULL; 852 853 /* Release the vector array memory */ 854 free(sc->irqvs, M_ICE); 855 sc->irqvs = NULL; 856 sc->num_irq_vectors = 0; 857 } 858 859 /** 860 * ice_if_detach - Device driver detach logic 861 * @ctx: iflib context structure 862 * 863 * Perform device shutdown logic to detach the device driver. 864 * 865 * Note that there is no guarantee of the ordering of ice_if_queues_free() and 866 * ice_if_detach(). It is possible for the functions to be called in either 867 * order, and they must not assume to have a strict ordering. 868 */ 869 static int 870 ice_if_detach(if_ctx_t ctx) 871 { 872 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 873 struct ice_vsi *vsi = &sc->pf_vsi; 874 int i; 875 876 ASSERT_CTX_LOCKED(sc); 877 878 /* Indicate that we're detaching */ 879 ice_set_state(&sc->state, ICE_STATE_DETACHING); 880 881 /* Stop the admin timer */ 882 mtx_lock(&sc->admin_mtx); 883 callout_stop(&sc->admin_timer); 884 mtx_unlock(&sc->admin_mtx); 885 mtx_destroy(&sc->admin_mtx); 886 887 /* Free allocated media types */ 888 ifmedia_removeall(sc->media); 889 890 /* Free the Tx and Rx sysctl contexts, and assign NULL to the node 891 * pointers. Note, the calls here and those in ice_if_queues_free() 892 * are *BOTH* necessary, as we cannot guarantee which path will be 893 * run first 894 */ 895 ice_vsi_del_txqs_ctx(vsi); 896 ice_vsi_del_rxqs_ctx(vsi); 897 898 /* Release MSI-X resources */ 899 ice_free_irqvs(sc); 900 901 for (i = 0; i < sc->num_available_vsi; i++) { 902 if (sc->all_vsi[i]) 903 ice_release_vsi(sc->all_vsi[i]); 904 } 905 906 if (sc->all_vsi) { 907 free(sc->all_vsi, M_ICE); 908 sc->all_vsi = NULL; 909 } 910 911 /* Release MSI-X memory */ 912 pci_release_msi(sc->dev); 913 914 if (sc->msix_table != NULL) { 915 bus_release_resource(sc->dev, SYS_RES_MEMORY, 916 rman_get_rid(sc->msix_table), 917 sc->msix_table); 918 sc->msix_table = NULL; 919 } 920 921 ice_free_intr_tracking(sc); 922 923 /* Destroy the queue managers */ 924 ice_resmgr_destroy(&sc->tx_qmgr); 925 ice_resmgr_destroy(&sc->rx_qmgr); 926 927 if (!ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 928 ice_deinit_hw(&sc->hw); 929 930 ice_free_pci_mapping(sc); 931 932 return 0; 933 } /* ice_if_detach */ 934 935 /** 936 * ice_if_tx_queues_alloc - Allocate Tx queue memory 937 * @ctx: iflib context structure 938 * @vaddrs: virtual addresses for the queue memory 939 * @paddrs: physical addresses for the queue memory 940 * @ntxqs: the number of Tx queues per set (should always be 1) 941 * @ntxqsets: the number of Tx queue sets to allocate 942 * 943 * Called by iflib to allocate Tx queues for the device. Allocates driver 944 * memory to track each queue, the status arrays used for descriptor 945 * status reporting, and Tx queue sysctls. 946 */ 947 static int 948 ice_if_tx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, 949 int __invariant_only ntxqs, int ntxqsets) 950 { 951 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 952 struct ice_vsi *vsi = &sc->pf_vsi; 953 struct ice_tx_queue *txq; 954 int err, i, j; 955 956 MPASS(ntxqs == 1); 957 MPASS(sc->scctx->isc_ntxd[0] <= ICE_MAX_DESC_COUNT); 958 ASSERT_CTX_LOCKED(sc); 959 960 /* Do not bother allocating queues if we're in recovery mode */ 961 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 962 return (0); 963 964 /* Allocate queue structure memory */ 965 if (!(vsi->tx_queues = 966 (struct ice_tx_queue *) malloc(sizeof(struct ice_tx_queue) * ntxqsets, M_ICE, M_WAITOK | M_ZERO))) { 967 device_printf(sc->dev, "Unable to allocate Tx queue memory\n"); 968 return (ENOMEM); 969 } 970 971 /* Allocate report status arrays */ 972 for (i = 0, txq = vsi->tx_queues; i < ntxqsets; i++, txq++) { 973 if (!(txq->tx_rsq = 974 (uint16_t *) malloc(sizeof(uint16_t) * sc->scctx->isc_ntxd[0], M_ICE, M_WAITOK))) { 975 device_printf(sc->dev, "Unable to allocate tx_rsq memory\n"); 976 err = ENOMEM; 977 goto free_tx_queues; 978 } 979 /* Initialize report status array */ 980 for (j = 0; j < sc->scctx->isc_ntxd[0]; j++) 981 txq->tx_rsq[j] = QIDX_INVALID; 982 } 983 984 /* Assign queues from PF space to the main VSI */ 985 err = ice_resmgr_assign_contiguous(&sc->tx_qmgr, vsi->tx_qmap, ntxqsets); 986 if (err) { 987 device_printf(sc->dev, "Unable to assign PF queues: %s\n", 988 ice_err_str(err)); 989 goto free_tx_queues; 990 } 991 vsi->qmap_type = ICE_RESMGR_ALLOC_CONTIGUOUS; 992 993 /* Add Tx queue sysctls context */ 994 ice_vsi_add_txqs_ctx(vsi); 995 996 for (i = 0, txq = vsi->tx_queues; i < ntxqsets; i++, txq++) { 997 /* q_handle == me when only one TC */ 998 txq->me = txq->q_handle = i; 999 txq->vsi = vsi; 1000 1001 /* store the queue size for easier access */ 1002 txq->desc_count = sc->scctx->isc_ntxd[0]; 1003 1004 /* get the virtual and physical address of the hardware queues */ 1005 txq->tail = QTX_COMM_DBELL(vsi->tx_qmap[i]); 1006 txq->tx_base = (struct ice_tx_desc *)vaddrs[i]; 1007 txq->tx_paddr = paddrs[i]; 1008 1009 ice_add_txq_sysctls(txq); 1010 } 1011 1012 vsi->num_tx_queues = ntxqsets; 1013 1014 return (0); 1015 1016 free_tx_queues: 1017 for (i = 0, txq = vsi->tx_queues; i < ntxqsets; i++, txq++) { 1018 if (txq->tx_rsq != NULL) { 1019 free(txq->tx_rsq, M_ICE); 1020 txq->tx_rsq = NULL; 1021 } 1022 } 1023 free(vsi->tx_queues, M_ICE); 1024 vsi->tx_queues = NULL; 1025 return err; 1026 } 1027 1028 /** 1029 * ice_if_rx_queues_alloc - Allocate Rx queue memory 1030 * @ctx: iflib context structure 1031 * @vaddrs: virtual addresses for the queue memory 1032 * @paddrs: physical addresses for the queue memory 1033 * @nrxqs: number of Rx queues per set (should always be 1) 1034 * @nrxqsets: number of Rx queue sets to allocate 1035 * 1036 * Called by iflib to allocate Rx queues for the device. Allocates driver 1037 * memory to track each queue, as well as sets up the Rx queue sysctls. 1038 */ 1039 static int 1040 ice_if_rx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, 1041 int __invariant_only nrxqs, int nrxqsets) 1042 { 1043 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1044 struct ice_vsi *vsi = &sc->pf_vsi; 1045 struct ice_rx_queue *rxq; 1046 int err, i; 1047 1048 MPASS(nrxqs == 1); 1049 MPASS(sc->scctx->isc_nrxd[0] <= ICE_MAX_DESC_COUNT); 1050 ASSERT_CTX_LOCKED(sc); 1051 1052 /* Do not bother allocating queues if we're in recovery mode */ 1053 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1054 return (0); 1055 1056 /* Allocate queue structure memory */ 1057 if (!(vsi->rx_queues = 1058 (struct ice_rx_queue *) malloc(sizeof(struct ice_rx_queue) * nrxqsets, M_ICE, M_WAITOK | M_ZERO))) { 1059 device_printf(sc->dev, "Unable to allocate Rx queue memory\n"); 1060 return (ENOMEM); 1061 } 1062 1063 /* Assign queues from PF space to the main VSI */ 1064 err = ice_resmgr_assign_contiguous(&sc->rx_qmgr, vsi->rx_qmap, nrxqsets); 1065 if (err) { 1066 device_printf(sc->dev, "Unable to assign PF queues: %s\n", 1067 ice_err_str(err)); 1068 goto free_rx_queues; 1069 } 1070 vsi->qmap_type = ICE_RESMGR_ALLOC_CONTIGUOUS; 1071 1072 /* Add Rx queue sysctls context */ 1073 ice_vsi_add_rxqs_ctx(vsi); 1074 1075 for (i = 0, rxq = vsi->rx_queues; i < nrxqsets; i++, rxq++) { 1076 rxq->me = i; 1077 rxq->vsi = vsi; 1078 1079 /* store the queue size for easier access */ 1080 rxq->desc_count = sc->scctx->isc_nrxd[0]; 1081 1082 /* get the virtual and physical address of the hardware queues */ 1083 rxq->tail = QRX_TAIL(vsi->rx_qmap[i]); 1084 rxq->rx_base = (union ice_32b_rx_flex_desc *)vaddrs[i]; 1085 rxq->rx_paddr = paddrs[i]; 1086 1087 ice_add_rxq_sysctls(rxq); 1088 } 1089 1090 vsi->num_rx_queues = nrxqsets; 1091 1092 return (0); 1093 1094 free_rx_queues: 1095 free(vsi->rx_queues, M_ICE); 1096 vsi->rx_queues = NULL; 1097 return err; 1098 } 1099 1100 /** 1101 * ice_if_queues_free - Free queue memory 1102 * @ctx: the iflib context structure 1103 * 1104 * Free queue memory allocated by ice_if_tx_queues_alloc() and 1105 * ice_if_rx_queues_alloc(). 1106 * 1107 * There is no guarantee that ice_if_queues_free() and ice_if_detach() will be 1108 * called in the same order. It's possible for ice_if_queues_free() to be 1109 * called prior to ice_if_detach(), and vice versa. 1110 * 1111 * For this reason, the main VSI is a static member of the ice_softc, which is 1112 * not free'd until after iflib finishes calling both of these functions. 1113 * 1114 * Thus, care must be taken in how we manage the memory being freed by this 1115 * function, and in what tasks it can and must perform. 1116 */ 1117 static void 1118 ice_if_queues_free(if_ctx_t ctx) 1119 { 1120 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1121 struct ice_vsi *vsi = &sc->pf_vsi; 1122 struct ice_tx_queue *txq; 1123 int i; 1124 1125 /* Free the Tx and Rx sysctl contexts, and assign NULL to the node 1126 * pointers. Note, the calls here and those in ice_if_detach() 1127 * are *BOTH* necessary, as we cannot guarantee which path will be 1128 * run first 1129 */ 1130 ice_vsi_del_txqs_ctx(vsi); 1131 ice_vsi_del_rxqs_ctx(vsi); 1132 1133 /* Release MSI-X IRQ vectors, if not yet released in ice_if_detach */ 1134 ice_free_irqvs(sc); 1135 1136 if (vsi->tx_queues != NULL) { 1137 /* free the tx_rsq arrays */ 1138 for (i = 0, txq = vsi->tx_queues; i < vsi->num_tx_queues; i++, txq++) { 1139 if (txq->tx_rsq != NULL) { 1140 free(txq->tx_rsq, M_ICE); 1141 txq->tx_rsq = NULL; 1142 } 1143 } 1144 free(vsi->tx_queues, M_ICE); 1145 vsi->tx_queues = NULL; 1146 vsi->num_tx_queues = 0; 1147 } 1148 if (vsi->rx_queues != NULL) { 1149 free(vsi->rx_queues, M_ICE); 1150 vsi->rx_queues = NULL; 1151 vsi->num_rx_queues = 0; 1152 } 1153 } 1154 1155 /** 1156 * ice_msix_que - Fast interrupt handler for MSI-X receive queues 1157 * @arg: The Rx queue memory 1158 * 1159 * Interrupt filter function for iflib MSI-X interrupts. Called by iflib when 1160 * an MSI-X interrupt for a given queue is triggered. Currently this just asks 1161 * iflib to schedule the main Rx thread. 1162 */ 1163 static int 1164 ice_msix_que(void *arg) 1165 { 1166 struct ice_rx_queue __unused *rxq = (struct ice_rx_queue *)arg; 1167 1168 /* TODO: dynamic ITR algorithm?? */ 1169 1170 return (FILTER_SCHEDULE_THREAD); 1171 } 1172 1173 /** 1174 * ice_msix_admin - Fast interrupt handler for MSI-X admin interrupt 1175 * @arg: pointer to device softc memory 1176 * 1177 * Called by iflib when an administrative interrupt occurs. Should perform any 1178 * fast logic for handling the interrupt cause, and then indicate whether the 1179 * admin task needs to be queued. 1180 */ 1181 static int 1182 ice_msix_admin(void *arg) 1183 { 1184 struct ice_softc *sc = (struct ice_softc *)arg; 1185 struct ice_hw *hw = &sc->hw; 1186 device_t dev = sc->dev; 1187 u32 oicr; 1188 1189 /* There is no safe way to modify the enabled miscellaneous causes of 1190 * the OICR vector at runtime, as doing so would be prone to race 1191 * conditions. Reading PFINT_OICR will unmask the associated interrupt 1192 * causes and allow future interrupts to occur. The admin interrupt 1193 * vector will not be re-enabled until after we exit this function, 1194 * but any delayed tasks must be resilient against possible "late 1195 * arrival" interrupts that occur while we're already handling the 1196 * task. This is done by using state bits and serializing these 1197 * delayed tasks via the admin status task function. 1198 */ 1199 oicr = rd32(hw, PFINT_OICR); 1200 1201 /* Processing multiple controlq interrupts on a single vector does not 1202 * provide an indication of which controlq triggered the interrupt. 1203 * We might try reading the INTEVENT bit of the respective PFINT_*_CTL 1204 * registers. However, the INTEVENT bit is not guaranteed to be set as 1205 * it gets automatically cleared when the hardware acknowledges the 1206 * interrupt. 1207 * 1208 * This means we don't really have a good indication of whether or 1209 * which controlq triggered this interrupt. We'll just notify the 1210 * admin task that it should check all the controlqs. 1211 */ 1212 ice_set_state(&sc->state, ICE_STATE_CONTROLQ_EVENT_PENDING); 1213 1214 if (oicr & PFINT_OICR_VFLR_M) { 1215 ice_set_state(&sc->state, ICE_STATE_VFLR_PENDING); 1216 } 1217 1218 if (oicr & PFINT_OICR_MAL_DETECT_M) { 1219 ice_set_state(&sc->state, ICE_STATE_MDD_PENDING); 1220 } 1221 1222 if (oicr & PFINT_OICR_GRST_M) { 1223 u32 reset; 1224 1225 reset = (rd32(hw, GLGEN_RSTAT) & GLGEN_RSTAT_RESET_TYPE_M) >> 1226 GLGEN_RSTAT_RESET_TYPE_S; 1227 1228 if (reset == ICE_RESET_CORER) 1229 sc->soft_stats.corer_count++; 1230 else if (reset == ICE_RESET_GLOBR) 1231 sc->soft_stats.globr_count++; 1232 else 1233 sc->soft_stats.empr_count++; 1234 1235 /* There are a couple of bits at play for handling resets. 1236 * First, the ICE_STATE_RESET_OICR_RECV bit is used to 1237 * indicate that the driver has received an OICR with a reset 1238 * bit active, indicating that a CORER/GLOBR/EMPR is about to 1239 * happen. Second, we set hw->reset_ongoing to indicate that 1240 * the hardware is in reset. We will set this back to false as 1241 * soon as the driver has determined that the hardware is out 1242 * of reset. 1243 * 1244 * If the driver wishes to trigger a reqest, it can set one of 1245 * the ICE_STATE_RESET_*_REQ bits, which will trigger the 1246 * correct type of reset. 1247 */ 1248 if (!ice_testandset_state(&sc->state, ICE_STATE_RESET_OICR_RECV)) 1249 hw->reset_ongoing = true; 1250 } 1251 1252 if (oicr & PFINT_OICR_ECC_ERR_M) { 1253 device_printf(dev, "ECC Error detected!\n"); 1254 ice_set_state(&sc->state, ICE_STATE_RESET_PFR_REQ); 1255 } 1256 1257 if (oicr & PFINT_OICR_PE_CRITERR_M) { 1258 device_printf(dev, "Critical Protocol Engine Error detected!\n"); 1259 ice_set_state(&sc->state, ICE_STATE_RESET_PFR_REQ); 1260 } 1261 1262 if (oicr & PFINT_OICR_PCI_EXCEPTION_M) { 1263 device_printf(dev, "PCI Exception detected!\n"); 1264 ice_set_state(&sc->state, ICE_STATE_RESET_PFR_REQ); 1265 } 1266 1267 if (oicr & PFINT_OICR_HMC_ERR_M) { 1268 /* Log the HMC errors, but don't disable the interrupt cause */ 1269 ice_log_hmc_error(hw, dev); 1270 } 1271 1272 return (FILTER_SCHEDULE_THREAD); 1273 } 1274 1275 /** 1276 * ice_allocate_msix - Allocate MSI-X vectors for the interface 1277 * @sc: the device private softc 1278 * 1279 * Map the MSI-X bar, and then request MSI-X vectors in a two-stage process. 1280 * 1281 * First, determine a suitable total number of vectors based on the number 1282 * of CPUs, RSS buckets, the administrative vector, and other demands such as 1283 * RDMA. 1284 * 1285 * Request the desired amount of vectors, and see how many we obtain. If we 1286 * don't obtain as many as desired, reduce the demands by lowering the number 1287 * of requested queues or reducing the demand from other features such as 1288 * RDMA. 1289 * 1290 * @remark This function is required because the driver sets the 1291 * IFLIB_SKIP_MSIX flag indicating that the driver will manage MSI-X vectors 1292 * manually. 1293 * 1294 * @remark This driver will only use MSI-X vectors. If this is not possible, 1295 * neither MSI or legacy interrupts will be tried. 1296 * 1297 * @post on success this function must set the following scctx parameters: 1298 * isc_vectors, isc_nrxqsets, isc_ntxqsets, and isc_intr. 1299 * 1300 * @returns zero on success or an error code on failure. 1301 */ 1302 static int 1303 ice_allocate_msix(struct ice_softc *sc) 1304 { 1305 bool iflib_override_queue_count = false; 1306 if_softc_ctx_t scctx = sc->scctx; 1307 device_t dev = sc->dev; 1308 cpuset_t cpus; 1309 int bar, queues, vectors, requested; 1310 int err = 0; 1311 1312 /* Allocate the MSI-X bar */ 1313 bar = scctx->isc_msix_bar; 1314 sc->msix_table = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &bar, RF_ACTIVE); 1315 if (!sc->msix_table) { 1316 device_printf(dev, "Unable to map MSI-X table\n"); 1317 return (ENOMEM); 1318 } 1319 1320 /* Check if the iflib queue count sysctls have been set */ 1321 if (sc->ifc_sysctl_ntxqs || sc->ifc_sysctl_nrxqs) 1322 iflib_override_queue_count = true; 1323 1324 err = bus_get_cpus(dev, INTR_CPUS, sizeof(cpus), &cpus); 1325 if (err) { 1326 device_printf(dev, "%s: Unable to fetch the CPU list: %s\n", 1327 __func__, ice_err_str(err)); 1328 CPU_COPY(&all_cpus, &cpus); 1329 } 1330 1331 /* Attempt to mimic behavior of iflib_msix_init */ 1332 if (iflib_override_queue_count) { 1333 /* 1334 * If the override sysctls have been set, limit the queues to 1335 * the number of logical CPUs. 1336 */ 1337 queues = mp_ncpus; 1338 } else { 1339 /* 1340 * Otherwise, limit the queue count to the CPUs associated 1341 * with the NUMA node the device is associated with. 1342 */ 1343 queues = CPU_COUNT(&cpus); 1344 } 1345 1346 /* Clamp to the number of RSS buckets */ 1347 queues = imin(queues, rss_getnumbuckets()); 1348 1349 /* 1350 * Clamp the number of queue pairs to the minimum of the requested Tx 1351 * and Rx queues. 1352 */ 1353 queues = imin(queues, sc->ifc_sysctl_ntxqs ?: scctx->isc_ntxqsets); 1354 queues = imin(queues, sc->ifc_sysctl_nrxqs ?: scctx->isc_nrxqsets); 1355 1356 /* 1357 * Determine the number of vectors to request. Note that we also need 1358 * to allocate one vector for administrative tasks. 1359 */ 1360 requested = queues + 1; 1361 1362 vectors = requested; 1363 1364 err = pci_alloc_msix(dev, &vectors); 1365 if (err) { 1366 device_printf(dev, "Failed to allocate %d MSI-X vectors, err %s\n", 1367 vectors, ice_err_str(err)); 1368 goto err_free_msix_table; 1369 } 1370 1371 /* If we don't receive enough vectors, reduce demands */ 1372 if (vectors < requested) { 1373 int diff = requested - vectors; 1374 1375 device_printf(dev, "Requested %d MSI-X vectors, but got only %d\n", 1376 requested, vectors); 1377 1378 /* 1379 * If we still have a difference, we need to reduce the number 1380 * of queue pairs. 1381 * 1382 * However, we still need at least one vector for the admin 1383 * interrupt and one queue pair. 1384 */ 1385 if (queues <= diff) { 1386 device_printf(dev, "Unable to allocate sufficient MSI-X vectors\n"); 1387 err = (ERANGE); 1388 goto err_pci_release_msi; 1389 } 1390 1391 queues -= diff; 1392 } 1393 1394 device_printf(dev, "Using %d Tx and Rx queues\n", queues); 1395 device_printf(dev, "Using MSI-X interrupts with %d vectors\n", 1396 vectors); 1397 1398 scctx->isc_vectors = vectors; 1399 scctx->isc_nrxqsets = queues; 1400 scctx->isc_ntxqsets = queues; 1401 scctx->isc_intr = IFLIB_INTR_MSIX; 1402 1403 /* Interrupt allocation tracking isn't required in recovery mode, 1404 * since neither RDMA nor VFs are enabled. 1405 */ 1406 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1407 return (0); 1408 1409 /* Keep track of which interrupt indices are being used for what */ 1410 sc->lan_vectors = vectors; 1411 err = ice_resmgr_assign_contiguous(&sc->imgr, sc->pf_imap, sc->lan_vectors); 1412 if (err) { 1413 device_printf(dev, "Unable to assign PF interrupt mapping: %s\n", 1414 ice_err_str(err)); 1415 goto err_pci_release_msi; 1416 } 1417 1418 return (0); 1419 1420 err_pci_release_msi: 1421 pci_release_msi(dev); 1422 err_free_msix_table: 1423 if (sc->msix_table != NULL) { 1424 bus_release_resource(sc->dev, SYS_RES_MEMORY, 1425 rman_get_rid(sc->msix_table), 1426 sc->msix_table); 1427 sc->msix_table = NULL; 1428 } 1429 1430 return (err); 1431 } 1432 1433 /** 1434 * ice_if_msix_intr_assign - Assign MSI-X interrupt vectors to queues 1435 * @ctx: the iflib context structure 1436 * @msix: the number of vectors we were assigned 1437 * 1438 * Called by iflib to assign MSI-X vectors to queues. Currently requires that 1439 * we get at least the same number of vectors as we have queues, and that we 1440 * always have the same number of Tx and Rx queues. 1441 * 1442 * Tx queues use a softirq instead of using their own hardware interrupt. 1443 */ 1444 static int 1445 ice_if_msix_intr_assign(if_ctx_t ctx, int msix) 1446 { 1447 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1448 struct ice_vsi *vsi = &sc->pf_vsi; 1449 int err, i, vector; 1450 1451 ASSERT_CTX_LOCKED(sc); 1452 1453 if (vsi->num_rx_queues != vsi->num_tx_queues) { 1454 device_printf(sc->dev, 1455 "iflib requested %d Tx queues, and %d Rx queues, but the driver isn't able to support a differing number of Tx and Rx queues\n", 1456 vsi->num_tx_queues, vsi->num_rx_queues); 1457 return (EOPNOTSUPP); 1458 } 1459 1460 if (msix < (vsi->num_rx_queues + 1)) { 1461 device_printf(sc->dev, 1462 "Not enough MSI-X vectors to assign one vector to each queue pair\n"); 1463 return (EOPNOTSUPP); 1464 } 1465 1466 /* Save the number of vectors for future use */ 1467 sc->num_irq_vectors = vsi->num_rx_queues + 1; 1468 1469 /* Allocate space to store the IRQ vector data */ 1470 if (!(sc->irqvs = 1471 (struct ice_irq_vector *) malloc(sizeof(struct ice_irq_vector) * (sc->num_irq_vectors), 1472 M_ICE, M_NOWAIT))) { 1473 device_printf(sc->dev, 1474 "Unable to allocate irqv memory\n"); 1475 return (ENOMEM); 1476 } 1477 1478 /* Administrative interrupt events will use vector 0 */ 1479 err = iflib_irq_alloc_generic(ctx, &sc->irqvs[0].irq, 1, IFLIB_INTR_ADMIN, 1480 ice_msix_admin, sc, 0, "admin"); 1481 if (err) { 1482 device_printf(sc->dev, 1483 "Failed to register Admin queue handler: %s\n", 1484 ice_err_str(err)); 1485 goto free_irqvs; 1486 } 1487 sc->irqvs[0].me = 0; 1488 1489 /* Do not allocate queue interrupts when in recovery mode */ 1490 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1491 return (0); 1492 1493 for (i = 0, vector = 1; i < vsi->num_rx_queues; i++, vector++) { 1494 struct ice_rx_queue *rxq = &vsi->rx_queues[i]; 1495 struct ice_tx_queue *txq = &vsi->tx_queues[i]; 1496 int rid = vector + 1; 1497 char irq_name[16]; 1498 1499 snprintf(irq_name, sizeof(irq_name), "rxq%d", i); 1500 err = iflib_irq_alloc_generic(ctx, &sc->irqvs[vector].irq, rid, 1501 IFLIB_INTR_RXTX, ice_msix_que, 1502 rxq, rxq->me, irq_name); 1503 if (err) { 1504 device_printf(sc->dev, 1505 "Failed to allocate q int %d err: %s\n", 1506 i, ice_err_str(err)); 1507 vector--; 1508 i--; 1509 goto fail; 1510 } 1511 sc->irqvs[vector].me = vector; 1512 rxq->irqv = &sc->irqvs[vector]; 1513 1514 bzero(irq_name, sizeof(irq_name)); 1515 1516 snprintf(irq_name, sizeof(irq_name), "txq%d", i); 1517 iflib_softirq_alloc_generic(ctx, &sc->irqvs[vector].irq, 1518 IFLIB_INTR_TX, txq, 1519 txq->me, irq_name); 1520 txq->irqv = &sc->irqvs[vector]; 1521 } 1522 1523 return (0); 1524 fail: 1525 for (; i >= 0; i--, vector--) 1526 iflib_irq_free(ctx, &sc->irqvs[vector].irq); 1527 iflib_irq_free(ctx, &sc->irqvs[0].irq); 1528 free_irqvs: 1529 free(sc->irqvs, M_ICE); 1530 sc->irqvs = NULL; 1531 return err; 1532 } 1533 1534 /** 1535 * ice_if_mtu_set - Set the device MTU 1536 * @ctx: iflib context structure 1537 * @mtu: the MTU requested 1538 * 1539 * Called by iflib to configure the device's Maximum Transmission Unit (MTU). 1540 * 1541 * @pre assumes the caller holds the iflib CTX lock 1542 */ 1543 static int 1544 ice_if_mtu_set(if_ctx_t ctx, uint32_t mtu) 1545 { 1546 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1547 1548 ASSERT_CTX_LOCKED(sc); 1549 1550 /* Do not support configuration when in recovery mode */ 1551 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1552 return (ENOSYS); 1553 1554 if (mtu < ICE_MIN_MTU || mtu > ICE_MAX_MTU) 1555 return (EINVAL); 1556 1557 sc->scctx->isc_max_frame_size = mtu + 1558 ETHER_HDR_LEN + ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN; 1559 1560 sc->pf_vsi.max_frame_size = sc->scctx->isc_max_frame_size; 1561 1562 return (0); 1563 } 1564 1565 /** 1566 * ice_if_intr_enable - Enable device interrupts 1567 * @ctx: iflib context structure 1568 * 1569 * Called by iflib to request enabling device interrupts. 1570 */ 1571 static void 1572 ice_if_intr_enable(if_ctx_t ctx) 1573 { 1574 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1575 struct ice_vsi *vsi = &sc->pf_vsi; 1576 struct ice_hw *hw = &sc->hw; 1577 1578 ASSERT_CTX_LOCKED(sc); 1579 1580 /* Enable ITR 0 */ 1581 ice_enable_intr(hw, sc->irqvs[0].me); 1582 1583 /* Do not enable queue interrupts in recovery mode */ 1584 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1585 return; 1586 1587 /* Enable all queue interrupts */ 1588 for (int i = 0; i < vsi->num_rx_queues; i++) 1589 ice_enable_intr(hw, vsi->rx_queues[i].irqv->me); 1590 } 1591 1592 /** 1593 * ice_if_intr_disable - Disable device interrupts 1594 * @ctx: iflib context structure 1595 * 1596 * Called by iflib to request disabling device interrupts. 1597 */ 1598 static void 1599 ice_if_intr_disable(if_ctx_t ctx) 1600 { 1601 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1602 struct ice_hw *hw = &sc->hw; 1603 unsigned int i; 1604 1605 ASSERT_CTX_LOCKED(sc); 1606 1607 /* IFDI_INTR_DISABLE may be called prior to interrupts actually being 1608 * assigned to queues. Instead of assuming that the interrupt 1609 * assignment in the rx_queues structure is valid, just disable all 1610 * possible interrupts 1611 * 1612 * Note that we choose not to disable ITR 0 because this handles the 1613 * AdminQ interrupts, and we want to keep processing these even when 1614 * the interface is offline. 1615 */ 1616 for (i = 1; i < hw->func_caps.common_cap.num_msix_vectors; i++) 1617 ice_disable_intr(hw, i); 1618 } 1619 1620 /** 1621 * ice_if_rx_queue_intr_enable - Enable a specific Rx queue interrupt 1622 * @ctx: iflib context structure 1623 * @rxqid: the Rx queue to enable 1624 * 1625 * Enable a specific Rx queue interrupt. 1626 * 1627 * This function is not protected by the iflib CTX lock. 1628 */ 1629 static int 1630 ice_if_rx_queue_intr_enable(if_ctx_t ctx, uint16_t rxqid) 1631 { 1632 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1633 struct ice_vsi *vsi = &sc->pf_vsi; 1634 struct ice_hw *hw = &sc->hw; 1635 1636 /* Do not enable queue interrupts in recovery mode */ 1637 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1638 return (ENOSYS); 1639 1640 ice_enable_intr(hw, vsi->rx_queues[rxqid].irqv->me); 1641 return (0); 1642 } 1643 1644 /** 1645 * ice_if_tx_queue_intr_enable - Enable a specific Tx queue interrupt 1646 * @ctx: iflib context structure 1647 * @txqid: the Tx queue to enable 1648 * 1649 * Enable a specific Tx queue interrupt. 1650 * 1651 * This function is not protected by the iflib CTX lock. 1652 */ 1653 static int 1654 ice_if_tx_queue_intr_enable(if_ctx_t ctx, uint16_t txqid) 1655 { 1656 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1657 struct ice_vsi *vsi = &sc->pf_vsi; 1658 struct ice_hw *hw = &sc->hw; 1659 1660 /* Do not enable queue interrupts in recovery mode */ 1661 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1662 return (ENOSYS); 1663 1664 ice_enable_intr(hw, vsi->tx_queues[txqid].irqv->me); 1665 return (0); 1666 } 1667 1668 /** 1669 * ice_if_promisc_set - Set device promiscuous mode 1670 * @ctx: iflib context structure 1671 * @flags: promiscuous flags to configure 1672 * 1673 * Called by iflib to configure device promiscuous mode. 1674 * 1675 * @remark Calls to this function will always overwrite the previous setting 1676 */ 1677 static int 1678 ice_if_promisc_set(if_ctx_t ctx, int flags) 1679 { 1680 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1681 struct ice_hw *hw = &sc->hw; 1682 device_t dev = sc->dev; 1683 enum ice_status status; 1684 bool promisc_enable = flags & IFF_PROMISC; 1685 bool multi_enable = flags & IFF_ALLMULTI; 1686 1687 /* Do not support configuration when in recovery mode */ 1688 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1689 return (ENOSYS); 1690 1691 if (multi_enable) 1692 return (EOPNOTSUPP); 1693 1694 if (promisc_enable) { 1695 status = ice_set_vsi_promisc(hw, sc->pf_vsi.idx, 1696 ICE_VSI_PROMISC_MASK, 0); 1697 if (status && status != ICE_ERR_ALREADY_EXISTS) { 1698 device_printf(dev, 1699 "Failed to enable promiscuous mode for PF VSI, err %s aq_err %s\n", 1700 ice_status_str(status), 1701 ice_aq_str(hw->adminq.sq_last_status)); 1702 return (EIO); 1703 } 1704 } else { 1705 status = ice_clear_vsi_promisc(hw, sc->pf_vsi.idx, 1706 ICE_VSI_PROMISC_MASK, 0); 1707 if (status) { 1708 device_printf(dev, 1709 "Failed to disable promiscuous mode for PF VSI, err %s aq_err %s\n", 1710 ice_status_str(status), 1711 ice_aq_str(hw->adminq.sq_last_status)); 1712 return (EIO); 1713 } 1714 } 1715 1716 return (0); 1717 } 1718 1719 /** 1720 * ice_if_media_change - Change device media 1721 * @ctx: device ctx structure 1722 * 1723 * Called by iflib when a media change is requested. This operation is not 1724 * supported by the hardware, so we just return an error code. 1725 */ 1726 static int 1727 ice_if_media_change(if_ctx_t ctx) 1728 { 1729 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1730 1731 device_printf(sc->dev, "Media change is not supported.\n"); 1732 return (ENODEV); 1733 } 1734 1735 /** 1736 * ice_if_media_status - Report current device media 1737 * @ctx: iflib context structure 1738 * @ifmr: ifmedia request structure to update 1739 * 1740 * Updates the provided ifmr with current device media status, including link 1741 * status and media type. 1742 */ 1743 static void 1744 ice_if_media_status(if_ctx_t ctx, struct ifmediareq *ifmr) 1745 { 1746 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1747 struct ice_link_status *li = &sc->hw.port_info->phy.link_info; 1748 1749 ifmr->ifm_status = IFM_AVALID; 1750 ifmr->ifm_active = IFM_ETHER; 1751 1752 /* Never report link up or media types when in recovery mode */ 1753 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1754 return; 1755 1756 if (!sc->link_up) 1757 return; 1758 1759 ifmr->ifm_status |= IFM_ACTIVE; 1760 ifmr->ifm_active |= IFM_FDX; 1761 1762 if (li->phy_type_low) 1763 ifmr->ifm_active |= ice_get_phy_type_low(li->phy_type_low); 1764 else if (li->phy_type_high) 1765 ifmr->ifm_active |= ice_get_phy_type_high(li->phy_type_high); 1766 else 1767 ifmr->ifm_active |= IFM_UNKNOWN; 1768 1769 /* Report flow control status as well */ 1770 if (li->an_info & ICE_AQ_LINK_PAUSE_TX) 1771 ifmr->ifm_active |= IFM_ETH_TXPAUSE; 1772 if (li->an_info & ICE_AQ_LINK_PAUSE_RX) 1773 ifmr->ifm_active |= IFM_ETH_RXPAUSE; 1774 } 1775 1776 /** 1777 * ice_init_tx_tracking - Initialize Tx queue software tracking values 1778 * @vsi: the VSI to initialize 1779 * 1780 * Initialize Tx queue software tracking values, including the Report Status 1781 * queue, and related software tracking values. 1782 */ 1783 static void 1784 ice_init_tx_tracking(struct ice_vsi *vsi) 1785 { 1786 struct ice_tx_queue *txq; 1787 size_t j; 1788 int i; 1789 1790 for (i = 0, txq = vsi->tx_queues; i < vsi->num_tx_queues; i++, txq++) { 1791 1792 txq->tx_rs_cidx = txq->tx_rs_pidx = 0; 1793 1794 /* Initialize the last processed descriptor to be the end of 1795 * the ring, rather than the start, so that we avoid an 1796 * off-by-one error in ice_ift_txd_credits_update for the 1797 * first packet. 1798 */ 1799 txq->tx_cidx_processed = txq->desc_count - 1; 1800 1801 for (j = 0; j < txq->desc_count; j++) 1802 txq->tx_rsq[j] = QIDX_INVALID; 1803 } 1804 } 1805 1806 /** 1807 * ice_update_rx_mbuf_sz - Update the Rx buffer size for all queues 1808 * @sc: the device softc 1809 * 1810 * Called to update the Rx queue mbuf_sz parameter for configuring the receive 1811 * buffer sizes when programming hardware. 1812 */ 1813 static void 1814 ice_update_rx_mbuf_sz(struct ice_softc *sc) 1815 { 1816 uint32_t mbuf_sz = iflib_get_rx_mbuf_sz(sc->ctx); 1817 struct ice_vsi *vsi = &sc->pf_vsi; 1818 1819 MPASS(mbuf_sz <= UINT16_MAX); 1820 vsi->mbuf_sz = mbuf_sz; 1821 } 1822 1823 /** 1824 * ice_if_init - Initialize the device 1825 * @ctx: iflib ctx structure 1826 * 1827 * Called by iflib to bring the device up, i.e. ifconfig ice0 up. Initializes 1828 * device filters and prepares the Tx and Rx engines. 1829 * 1830 * @pre assumes the caller holds the iflib CTX lock 1831 */ 1832 static void 1833 ice_if_init(if_ctx_t ctx) 1834 { 1835 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1836 device_t dev = sc->dev; 1837 int err; 1838 1839 ASSERT_CTX_LOCKED(sc); 1840 1841 /* 1842 * We've seen an issue with 11.3/12.1 where sideband routines are 1843 * called after detach is called. This would call routines after 1844 * if_stop, causing issues with the teardown process. This has 1845 * seemingly been fixed in STABLE snapshots, but it seems like a 1846 * good idea to have this guard here regardless. 1847 */ 1848 if (ice_driver_is_detaching(sc)) 1849 return; 1850 1851 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1852 return; 1853 1854 if (ice_test_state(&sc->state, ICE_STATE_RESET_FAILED)) { 1855 device_printf(sc->dev, "request to start interface cannot be completed as the device failed to reset\n"); 1856 return; 1857 } 1858 1859 if (ice_test_state(&sc->state, ICE_STATE_PREPARED_FOR_RESET)) { 1860 device_printf(sc->dev, "request to start interface while device is prepared for impending reset\n"); 1861 return; 1862 } 1863 1864 ice_update_rx_mbuf_sz(sc); 1865 1866 /* Update the MAC address... User might use a LAA */ 1867 err = ice_update_laa_mac(sc); 1868 if (err) { 1869 device_printf(dev, 1870 "LAA address change failed, err %s\n", 1871 ice_err_str(err)); 1872 return; 1873 } 1874 1875 /* Initialize software Tx tracking values */ 1876 ice_init_tx_tracking(&sc->pf_vsi); 1877 1878 err = ice_cfg_vsi_for_tx(&sc->pf_vsi); 1879 if (err) { 1880 device_printf(dev, 1881 "Unable to configure the main VSI for Tx: %s\n", 1882 ice_err_str(err)); 1883 return; 1884 } 1885 1886 err = ice_cfg_vsi_for_rx(&sc->pf_vsi); 1887 if (err) { 1888 device_printf(dev, 1889 "Unable to configure the main VSI for Rx: %s\n", 1890 ice_err_str(err)); 1891 goto err_cleanup_tx; 1892 } 1893 1894 err = ice_control_rx_queues(&sc->pf_vsi, true); 1895 if (err) { 1896 device_printf(dev, 1897 "Unable to enable Rx rings for transmit: %s\n", 1898 ice_err_str(err)); 1899 goto err_cleanup_tx; 1900 } 1901 1902 err = ice_cfg_pf_default_mac_filters(sc); 1903 if (err) { 1904 device_printf(dev, 1905 "Unable to configure default MAC filters: %s\n", 1906 ice_err_str(err)); 1907 goto err_stop_rx; 1908 } 1909 1910 /* We use software interrupts for Tx, so we only program the hardware 1911 * interrupts for Rx. 1912 */ 1913 ice_configure_rxq_interrupts(&sc->pf_vsi); 1914 ice_configure_rx_itr(&sc->pf_vsi); 1915 1916 /* Configure promiscuous mode */ 1917 ice_if_promisc_set(ctx, if_getflags(sc->ifp)); 1918 1919 ice_set_state(&sc->state, ICE_STATE_DRIVER_INITIALIZED); 1920 return; 1921 1922 err_stop_rx: 1923 ice_control_rx_queues(&sc->pf_vsi, false); 1924 err_cleanup_tx: 1925 ice_vsi_disable_tx(&sc->pf_vsi); 1926 } 1927 1928 /** 1929 * ice_poll_for_media_avail - Re-enable link if media is detected 1930 * @sc: device private structure 1931 * 1932 * Intended to be called from the driver's timer function, this function 1933 * sends the Get Link Status AQ command and re-enables HW link if the 1934 * command says that media is available. 1935 * 1936 * If the driver doesn't have the "NO_MEDIA" state set, then this does nothing, 1937 * since media removal events are supposed to be sent to the driver through 1938 * a link status event. 1939 */ 1940 static void 1941 ice_poll_for_media_avail(struct ice_softc *sc) 1942 { 1943 struct ice_hw *hw = &sc->hw; 1944 struct ice_port_info *pi = hw->port_info; 1945 1946 if (ice_test_state(&sc->state, ICE_STATE_NO_MEDIA)) { 1947 pi->phy.get_link_info = true; 1948 ice_get_link_status(pi, &sc->link_up); 1949 1950 if (pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE) { 1951 enum ice_status status; 1952 1953 /* Re-enable link and re-apply user link settings */ 1954 ice_apply_saved_phy_cfg(sc, ICE_APPLY_LS_FEC_FC); 1955 1956 /* Update the OS about changes in media capability */ 1957 status = ice_add_media_types(sc, sc->media); 1958 if (status) 1959 device_printf(sc->dev, "Error adding device media types: %s aq_err %s\n", 1960 ice_status_str(status), 1961 ice_aq_str(hw->adminq.sq_last_status)); 1962 1963 ice_clear_state(&sc->state, ICE_STATE_NO_MEDIA); 1964 } 1965 } 1966 } 1967 1968 /** 1969 * ice_if_timer - called by iflib periodically 1970 * @ctx: iflib ctx structure 1971 * @qid: the queue this timer was called for 1972 * 1973 * This callback is triggered by iflib periodically. We use it to update the 1974 * hw statistics. 1975 * 1976 * @remark this function is not protected by the iflib CTX lock. 1977 */ 1978 static void 1979 ice_if_timer(if_ctx_t ctx, uint16_t qid) 1980 { 1981 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1982 uint64_t prev_link_xoff_rx = sc->stats.cur.link_xoff_rx; 1983 1984 if (qid != 0) 1985 return; 1986 1987 /* Do not attempt to update stats when in recovery mode */ 1988 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1989 return; 1990 1991 /* Update device statistics */ 1992 ice_update_pf_stats(sc); 1993 1994 /* 1995 * For proper watchdog management, the iflib stack needs to know if 1996 * we've been paused during the last interval. Check if the 1997 * link_xoff_rx stat changed, and set the isc_pause_frames, if so. 1998 */ 1999 if (sc->stats.cur.link_xoff_rx != prev_link_xoff_rx) 2000 sc->scctx->isc_pause_frames = 1; 2001 2002 /* Update the primary VSI stats */ 2003 ice_update_vsi_hw_stats(&sc->pf_vsi); 2004 } 2005 2006 /** 2007 * ice_admin_timer - called periodically to trigger the admin task 2008 * @arg: callout(9) argument pointing to the device private softc structure 2009 * 2010 * Timer function used as part of a callout(9) timer that will periodically 2011 * trigger the admin task, even when the interface is down. 2012 * 2013 * @remark this function is not called by iflib and is not protected by the 2014 * iflib CTX lock. 2015 * 2016 * @remark because this is a callout function, it cannot sleep and should not 2017 * attempt taking the iflib CTX lock. 2018 */ 2019 static void 2020 ice_admin_timer(void *arg) 2021 { 2022 struct ice_softc *sc = (struct ice_softc *)arg; 2023 2024 /* 2025 * There is a point where callout routines are no longer 2026 * cancelable. So there exists a window of time where the 2027 * driver enters detach() and tries to cancel the callout, but the 2028 * callout routine has passed the cancellation point. The detach() 2029 * routine is unaware of this and tries to free resources that the 2030 * callout routine needs. So we check for the detach state flag to 2031 * at least shrink the window of opportunity. 2032 */ 2033 if (ice_driver_is_detaching(sc)) 2034 return; 2035 2036 /* Fire off the admin task */ 2037 iflib_admin_intr_deferred(sc->ctx); 2038 2039 /* Reschedule the admin timer */ 2040 callout_schedule(&sc->admin_timer, hz/2); 2041 } 2042 2043 /** 2044 * ice_transition_recovery_mode - Transition to recovery mode 2045 * @sc: the device private softc 2046 * 2047 * Called when the driver detects that the firmware has entered recovery mode 2048 * at run time. 2049 */ 2050 static void 2051 ice_transition_recovery_mode(struct ice_softc *sc) 2052 { 2053 struct ice_vsi *vsi = &sc->pf_vsi; 2054 int i; 2055 2056 device_printf(sc->dev, "Firmware recovery mode detected. Limiting functionality. Refer to Intel(R) Ethernet Adapters and Devices User Guide for details on firmware recovery mode.\n"); 2057 2058 /* Tell the stack that the link has gone down */ 2059 iflib_link_state_change(sc->ctx, LINK_STATE_DOWN, 0); 2060 2061 /* Request that the device be re-initialized */ 2062 ice_request_stack_reinit(sc); 2063 2064 ice_clear_bit(ICE_FEATURE_SRIOV, sc->feat_en); 2065 ice_clear_bit(ICE_FEATURE_SRIOV, sc->feat_cap); 2066 2067 ice_vsi_del_txqs_ctx(vsi); 2068 ice_vsi_del_rxqs_ctx(vsi); 2069 2070 for (i = 0; i < sc->num_available_vsi; i++) { 2071 if (sc->all_vsi[i]) 2072 ice_release_vsi(sc->all_vsi[i]); 2073 } 2074 sc->num_available_vsi = 0; 2075 2076 if (sc->all_vsi) { 2077 free(sc->all_vsi, M_ICE); 2078 sc->all_vsi = NULL; 2079 } 2080 2081 /* Destroy the interrupt manager */ 2082 ice_resmgr_destroy(&sc->imgr); 2083 /* Destroy the queue managers */ 2084 ice_resmgr_destroy(&sc->tx_qmgr); 2085 ice_resmgr_destroy(&sc->rx_qmgr); 2086 2087 ice_deinit_hw(&sc->hw); 2088 } 2089 2090 /** 2091 * ice_transition_safe_mode - Transition to safe mode 2092 * @sc: the device private softc 2093 * 2094 * Called when the driver attempts to reload the DDP package during a device 2095 * reset, and the new download fails. If so, we must transition to safe mode 2096 * at run time. 2097 * 2098 * @remark although safe mode normally allocates only a single queue, we can't 2099 * change the number of queues dynamically when using iflib. Due to this, we 2100 * do not attempt to reduce the number of queues. 2101 */ 2102 static void 2103 ice_transition_safe_mode(struct ice_softc *sc) 2104 { 2105 /* Indicate that we are in Safe mode */ 2106 ice_set_bit(ICE_FEATURE_SAFE_MODE, sc->feat_cap); 2107 ice_set_bit(ICE_FEATURE_SAFE_MODE, sc->feat_en); 2108 2109 ice_clear_bit(ICE_FEATURE_SRIOV, sc->feat_en); 2110 ice_clear_bit(ICE_FEATURE_SRIOV, sc->feat_cap); 2111 2112 ice_clear_bit(ICE_FEATURE_RSS, sc->feat_cap); 2113 ice_clear_bit(ICE_FEATURE_RSS, sc->feat_en); 2114 } 2115 2116 /** 2117 * ice_if_update_admin_status - update admin status 2118 * @ctx: iflib ctx structure 2119 * 2120 * Called by iflib to update the admin status. For our purposes, this means 2121 * check the adminq, and update the link status. It's ultimately triggered by 2122 * our admin interrupt, or by the ice_if_timer periodically. 2123 * 2124 * @pre assumes the caller holds the iflib CTX lock 2125 */ 2126 static void 2127 ice_if_update_admin_status(if_ctx_t ctx) 2128 { 2129 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2130 enum ice_fw_modes fw_mode; 2131 bool reschedule = false; 2132 u16 pending = 0; 2133 2134 ASSERT_CTX_LOCKED(sc); 2135 2136 /* Check if the firmware entered recovery mode at run time */ 2137 fw_mode = ice_get_fw_mode(&sc->hw); 2138 if (fw_mode == ICE_FW_MODE_REC) { 2139 if (!ice_testandset_state(&sc->state, ICE_STATE_RECOVERY_MODE)) { 2140 /* If we just entered recovery mode, log a warning to 2141 * the system administrator and deinit driver state 2142 * that is no longer functional. 2143 */ 2144 ice_transition_recovery_mode(sc); 2145 } 2146 } else if (fw_mode == ICE_FW_MODE_ROLLBACK) { 2147 if (!ice_testandset_state(&sc->state, ICE_STATE_ROLLBACK_MODE)) { 2148 /* Rollback mode isn't fatal, but we don't want to 2149 * repeatedly post a message about it. 2150 */ 2151 ice_print_rollback_msg(&sc->hw); 2152 } 2153 } 2154 2155 /* Handle global reset events */ 2156 ice_handle_reset_event(sc); 2157 2158 /* Handle PF reset requests */ 2159 ice_handle_pf_reset_request(sc); 2160 2161 /* Handle MDD events */ 2162 ice_handle_mdd_event(sc); 2163 2164 if (ice_test_state(&sc->state, ICE_STATE_RESET_FAILED) || 2165 ice_test_state(&sc->state, ICE_STATE_PREPARED_FOR_RESET) || 2166 ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) { 2167 /* 2168 * If we know the control queues are disabled, skip processing 2169 * the control queues entirely. 2170 */ 2171 ; 2172 } else if (ice_testandclear_state(&sc->state, ICE_STATE_CONTROLQ_EVENT_PENDING)) { 2173 ice_process_ctrlq(sc, ICE_CTL_Q_ADMIN, &pending); 2174 if (pending > 0) 2175 reschedule = true; 2176 2177 ice_process_ctrlq(sc, ICE_CTL_Q_MAILBOX, &pending); 2178 if (pending > 0) 2179 reschedule = true; 2180 } 2181 2182 /* Poll for link up */ 2183 ice_poll_for_media_avail(sc); 2184 2185 /* Check and update link status */ 2186 ice_update_link_status(sc, false); 2187 2188 /* 2189 * If there are still messages to process, we need to reschedule 2190 * ourselves. Otherwise, we can just re-enable the interrupt. We'll be 2191 * woken up at the next interrupt or timer event. 2192 */ 2193 if (reschedule) { 2194 ice_set_state(&sc->state, ICE_STATE_CONTROLQ_EVENT_PENDING); 2195 iflib_admin_intr_deferred(ctx); 2196 } else { 2197 ice_enable_intr(&sc->hw, sc->irqvs[0].me); 2198 } 2199 } 2200 2201 /** 2202 * ice_prepare_for_reset - Prepare device for an impending reset 2203 * @sc: The device private softc 2204 * 2205 * Prepare the driver for an impending reset, shutting down VSIs, clearing the 2206 * scheduler setup, and shutting down controlqs. Uses the 2207 * ICE_STATE_PREPARED_FOR_RESET to indicate whether we've already prepared the 2208 * driver for reset or not. 2209 */ 2210 static void 2211 ice_prepare_for_reset(struct ice_softc *sc) 2212 { 2213 struct ice_hw *hw = &sc->hw; 2214 2215 /* If we're already prepared, there's nothing to do */ 2216 if (ice_testandset_state(&sc->state, ICE_STATE_PREPARED_FOR_RESET)) 2217 return; 2218 2219 log(LOG_INFO, "%s: preparing to reset device logic\n", sc->ifp->if_xname); 2220 2221 /* In recovery mode, hardware is not initialized */ 2222 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 2223 return; 2224 2225 /* Release the main PF VSI queue mappings */ 2226 ice_resmgr_release_map(&sc->tx_qmgr, sc->pf_vsi.tx_qmap, 2227 sc->pf_vsi.num_tx_queues); 2228 ice_resmgr_release_map(&sc->rx_qmgr, sc->pf_vsi.rx_qmap, 2229 sc->pf_vsi.num_rx_queues); 2230 2231 ice_clear_hw_tbls(hw); 2232 2233 if (hw->port_info) 2234 ice_sched_clear_port(hw->port_info); 2235 2236 ice_shutdown_all_ctrlq(hw); 2237 } 2238 2239 /** 2240 * ice_rebuild_pf_vsi_qmap - Rebuild the main PF VSI queue mapping 2241 * @sc: the device softc pointer 2242 * 2243 * Loops over the Tx and Rx queues for the main PF VSI and reassigns the queue 2244 * mapping after a reset occurred. 2245 */ 2246 static int 2247 ice_rebuild_pf_vsi_qmap(struct ice_softc *sc) 2248 { 2249 struct ice_vsi *vsi = &sc->pf_vsi; 2250 struct ice_tx_queue *txq; 2251 struct ice_rx_queue *rxq; 2252 int err, i; 2253 2254 /* Re-assign Tx queues from PF space to the main VSI */ 2255 err = ice_resmgr_assign_contiguous(&sc->tx_qmgr, vsi->tx_qmap, 2256 vsi->num_tx_queues); 2257 if (err) { 2258 device_printf(sc->dev, "Unable to re-assign PF Tx queues: %s\n", 2259 ice_err_str(err)); 2260 return (err); 2261 } 2262 2263 /* Re-assign Rx queues from PF space to this VSI */ 2264 err = ice_resmgr_assign_contiguous(&sc->rx_qmgr, vsi->rx_qmap, 2265 vsi->num_rx_queues); 2266 if (err) { 2267 device_printf(sc->dev, "Unable to re-assign PF Rx queues: %s\n", 2268 ice_err_str(err)); 2269 goto err_release_tx_queues; 2270 } 2271 2272 vsi->qmap_type = ICE_RESMGR_ALLOC_CONTIGUOUS; 2273 2274 /* Re-assign Tx queue tail pointers */ 2275 for (i = 0, txq = vsi->tx_queues; i < vsi->num_tx_queues; i++, txq++) 2276 txq->tail = QTX_COMM_DBELL(vsi->tx_qmap[i]); 2277 2278 /* Re-assign Rx queue tail pointers */ 2279 for (i = 0, rxq = vsi->rx_queues; i < vsi->num_rx_queues; i++, rxq++) 2280 rxq->tail = QRX_TAIL(vsi->rx_qmap[i]); 2281 2282 return (0); 2283 2284 err_release_tx_queues: 2285 ice_resmgr_release_map(&sc->tx_qmgr, sc->pf_vsi.tx_qmap, 2286 sc->pf_vsi.num_tx_queues); 2287 2288 return (err); 2289 } 2290 2291 /* determine if the iflib context is active */ 2292 #define CTX_ACTIVE(ctx) ((if_getdrvflags(iflib_get_ifp(ctx)) & IFF_DRV_RUNNING)) 2293 2294 /** 2295 * ice_rebuild_recovery_mode - Rebuild driver state while in recovery mode 2296 * @sc: The device private softc 2297 * 2298 * Handle a driver rebuild while in recovery mode. This will only rebuild the 2299 * limited functionality supported while in recovery mode. 2300 */ 2301 static void 2302 ice_rebuild_recovery_mode(struct ice_softc *sc) 2303 { 2304 device_t dev = sc->dev; 2305 2306 /* enable PCIe bus master */ 2307 pci_enable_busmaster(dev); 2308 2309 /* Configure interrupt causes for the administrative interrupt */ 2310 ice_configure_misc_interrupts(sc); 2311 2312 /* Enable ITR 0 right away, so that we can handle admin interrupts */ 2313 ice_enable_intr(&sc->hw, sc->irqvs[0].me); 2314 2315 /* Now that the rebuild is finished, we're no longer prepared to reset */ 2316 ice_clear_state(&sc->state, ICE_STATE_PREPARED_FOR_RESET); 2317 2318 log(LOG_INFO, "%s: device rebuild successful\n", sc->ifp->if_xname); 2319 2320 /* In order to completely restore device functionality, the iflib core 2321 * needs to be reset. We need to request an iflib reset. Additionally, 2322 * because the state of IFC_DO_RESET is cached within task_fn_admin in 2323 * the iflib core, we also want re-run the admin task so that iflib 2324 * resets immediately instead of waiting for the next interrupt. 2325 */ 2326 ice_request_stack_reinit(sc); 2327 2328 return; 2329 } 2330 2331 /** 2332 * ice_rebuild - Rebuild driver state post reset 2333 * @sc: The device private softc 2334 * 2335 * Restore driver state after a reset occurred. Restart the controlqs, setup 2336 * the hardware port, and re-enable the VSIs. 2337 */ 2338 static void 2339 ice_rebuild(struct ice_softc *sc) 2340 { 2341 struct ice_hw *hw = &sc->hw; 2342 device_t dev = sc->dev; 2343 enum ice_status status; 2344 int err; 2345 2346 sc->rebuild_ticks = ticks; 2347 2348 /* If we're rebuilding, then a reset has succeeded. */ 2349 ice_clear_state(&sc->state, ICE_STATE_RESET_FAILED); 2350 2351 /* 2352 * If the firmware is in recovery mode, only restore the limited 2353 * functionality supported by recovery mode. 2354 */ 2355 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) { 2356 ice_rebuild_recovery_mode(sc); 2357 return; 2358 } 2359 2360 /* enable PCIe bus master */ 2361 pci_enable_busmaster(dev); 2362 2363 status = ice_init_all_ctrlq(hw); 2364 if (status) { 2365 device_printf(dev, "failed to re-init controlqs, err %s\n", 2366 ice_status_str(status)); 2367 goto err_shutdown_ctrlq; 2368 } 2369 2370 /* Query the allocated resources for Tx scheduler */ 2371 status = ice_sched_query_res_alloc(hw); 2372 if (status) { 2373 device_printf(dev, 2374 "Failed to query scheduler resources, err %s aq_err %s\n", 2375 ice_status_str(status), 2376 ice_aq_str(hw->adminq.sq_last_status)); 2377 goto err_shutdown_ctrlq; 2378 } 2379 2380 /* Re-enable FW logging. Keep going even if this fails */ 2381 status = ice_fwlog_set(hw, &hw->fwlog_cfg); 2382 if (!status) { 2383 /* 2384 * We should have the most updated cached copy of the 2385 * configuration, regardless of whether we're rebuilding 2386 * or not. So we'll simply check to see if logging was 2387 * enabled pre-rebuild. 2388 */ 2389 if (hw->fwlog_cfg.options & ICE_FWLOG_OPTION_IS_REGISTERED) { 2390 status = ice_fwlog_register(hw); 2391 if (status) 2392 device_printf(dev, "failed to re-register fw logging, err %s aq_err %s\n", 2393 ice_status_str(status), 2394 ice_aq_str(hw->adminq.sq_last_status)); 2395 } 2396 } else 2397 device_printf(dev, "failed to rebuild fw logging configuration, err %s aq_err %s\n", 2398 ice_status_str(status), 2399 ice_aq_str(hw->adminq.sq_last_status)); 2400 2401 err = ice_send_version(sc); 2402 if (err) 2403 goto err_shutdown_ctrlq; 2404 2405 err = ice_init_link_events(sc); 2406 if (err) { 2407 device_printf(dev, "ice_init_link_events failed: %s\n", 2408 ice_err_str(err)); 2409 goto err_shutdown_ctrlq; 2410 } 2411 2412 status = ice_clear_pf_cfg(hw); 2413 if (status) { 2414 device_printf(dev, "failed to clear PF configuration, err %s\n", 2415 ice_status_str(status)); 2416 goto err_shutdown_ctrlq; 2417 } 2418 2419 ice_clear_pxe_mode(hw); 2420 2421 status = ice_get_caps(hw); 2422 if (status) { 2423 device_printf(dev, "failed to get capabilities, err %s\n", 2424 ice_status_str(status)); 2425 goto err_shutdown_ctrlq; 2426 } 2427 2428 status = ice_sched_init_port(hw->port_info); 2429 if (status) { 2430 device_printf(dev, "failed to initialize port, err %s\n", 2431 ice_status_str(status)); 2432 goto err_sched_cleanup; 2433 } 2434 2435 /* If we previously loaded the package, it needs to be reloaded now */ 2436 if (!ice_is_bit_set(sc->feat_en, ICE_FEATURE_SAFE_MODE)) { 2437 status = ice_init_pkg(hw, hw->pkg_copy, hw->pkg_size); 2438 if (status) { 2439 ice_log_pkg_init(sc, &status); 2440 2441 ice_transition_safe_mode(sc); 2442 } 2443 } 2444 2445 ice_reset_pf_stats(sc); 2446 2447 err = ice_rebuild_pf_vsi_qmap(sc); 2448 if (err) { 2449 device_printf(sc->dev, "Unable to re-assign main VSI queues, err %s\n", 2450 ice_err_str(err)); 2451 goto err_sched_cleanup; 2452 } 2453 err = ice_initialize_vsi(&sc->pf_vsi); 2454 if (err) { 2455 device_printf(sc->dev, "Unable to re-initialize Main VSI, err %s\n", 2456 ice_err_str(err)); 2457 goto err_release_queue_allocations; 2458 } 2459 2460 /* Replay all VSI configuration */ 2461 err = ice_replay_all_vsi_cfg(sc); 2462 if (err) 2463 goto err_deinit_pf_vsi; 2464 2465 /* Re-enable FW health event reporting */ 2466 ice_init_health_events(sc); 2467 2468 /* Reconfigure the main PF VSI for RSS */ 2469 err = ice_config_rss(&sc->pf_vsi); 2470 if (err) { 2471 device_printf(sc->dev, 2472 "Unable to reconfigure RSS for the main VSI, err %s\n", 2473 ice_err_str(err)); 2474 goto err_deinit_pf_vsi; 2475 } 2476 2477 /* Refresh link status */ 2478 ice_clear_state(&sc->state, ICE_STATE_LINK_STATUS_REPORTED); 2479 sc->hw.port_info->phy.get_link_info = true; 2480 ice_get_link_status(sc->hw.port_info, &sc->link_up); 2481 ice_update_link_status(sc, true); 2482 2483 /* Configure interrupt causes for the administrative interrupt */ 2484 ice_configure_misc_interrupts(sc); 2485 2486 /* Enable ITR 0 right away, so that we can handle admin interrupts */ 2487 ice_enable_intr(&sc->hw, sc->irqvs[0].me); 2488 2489 /* Now that the rebuild is finished, we're no longer prepared to reset */ 2490 ice_clear_state(&sc->state, ICE_STATE_PREPARED_FOR_RESET); 2491 2492 log(LOG_INFO, "%s: device rebuild successful\n", sc->ifp->if_xname); 2493 2494 /* In order to completely restore device functionality, the iflib core 2495 * needs to be reset. We need to request an iflib reset. Additionally, 2496 * because the state of IFC_DO_RESET is cached within task_fn_admin in 2497 * the iflib core, we also want re-run the admin task so that iflib 2498 * resets immediately instead of waiting for the next interrupt. 2499 */ 2500 ice_request_stack_reinit(sc); 2501 2502 return; 2503 2504 err_deinit_pf_vsi: 2505 ice_deinit_vsi(&sc->pf_vsi); 2506 err_release_queue_allocations: 2507 ice_resmgr_release_map(&sc->tx_qmgr, sc->pf_vsi.tx_qmap, 2508 sc->pf_vsi.num_tx_queues); 2509 ice_resmgr_release_map(&sc->rx_qmgr, sc->pf_vsi.rx_qmap, 2510 sc->pf_vsi.num_rx_queues); 2511 err_sched_cleanup: 2512 ice_sched_cleanup_all(hw); 2513 err_shutdown_ctrlq: 2514 ice_shutdown_all_ctrlq(hw); 2515 ice_set_state(&sc->state, ICE_STATE_RESET_FAILED); 2516 device_printf(dev, "Driver rebuild failed, please reload the device driver\n"); 2517 } 2518 2519 /** 2520 * ice_handle_reset_event - Handle reset events triggered by OICR 2521 * @sc: The device private softc 2522 * 2523 * Handle reset events triggered by an OICR notification. This includes CORER, 2524 * GLOBR, and EMPR resets triggered by software on this or any other PF or by 2525 * firmware. 2526 * 2527 * @pre assumes the iflib context lock is held, and will unlock it while 2528 * waiting for the hardware to finish reset. 2529 */ 2530 static void 2531 ice_handle_reset_event(struct ice_softc *sc) 2532 { 2533 struct ice_hw *hw = &sc->hw; 2534 enum ice_status status; 2535 device_t dev = sc->dev; 2536 2537 /* When a CORER, GLOBR, or EMPR is about to happen, the hardware will 2538 * trigger an OICR interrupt. Our OICR handler will determine when 2539 * this occurs and set the ICE_STATE_RESET_OICR_RECV bit as 2540 * appropriate. 2541 */ 2542 if (!ice_testandclear_state(&sc->state, ICE_STATE_RESET_OICR_RECV)) 2543 return; 2544 2545 ice_prepare_for_reset(sc); 2546 2547 /* 2548 * Release the iflib context lock and wait for the device to finish 2549 * resetting. 2550 */ 2551 IFLIB_CTX_UNLOCK(sc); 2552 status = ice_check_reset(hw); 2553 IFLIB_CTX_LOCK(sc); 2554 if (status) { 2555 device_printf(dev, "Device never came out of reset, err %s\n", 2556 ice_status_str(status)); 2557 ice_set_state(&sc->state, ICE_STATE_RESET_FAILED); 2558 return; 2559 } 2560 2561 /* We're done with the reset, so we can rebuild driver state */ 2562 sc->hw.reset_ongoing = false; 2563 ice_rebuild(sc); 2564 2565 /* In the unlikely event that a PF reset request occurs at the same 2566 * time as a global reset, clear the request now. This avoids 2567 * resetting a second time right after we reset due to a global event. 2568 */ 2569 if (ice_testandclear_state(&sc->state, ICE_STATE_RESET_PFR_REQ)) 2570 device_printf(dev, "Ignoring PFR request that occurred while a reset was ongoing\n"); 2571 } 2572 2573 /** 2574 * ice_handle_pf_reset_request - Initiate PF reset requested by software 2575 * @sc: The device private softc 2576 * 2577 * Initiate a PF reset requested by software. We handle this in the admin task 2578 * so that only one thread actually handles driver preparation and cleanup, 2579 * rather than having multiple threads possibly attempt to run this code 2580 * simultaneously. 2581 * 2582 * @pre assumes the iflib context lock is held and will unlock it while 2583 * waiting for the PF reset to complete. 2584 */ 2585 static void 2586 ice_handle_pf_reset_request(struct ice_softc *sc) 2587 { 2588 struct ice_hw *hw = &sc->hw; 2589 enum ice_status status; 2590 2591 /* Check for PF reset requests */ 2592 if (!ice_testandclear_state(&sc->state, ICE_STATE_RESET_PFR_REQ)) 2593 return; 2594 2595 /* Make sure we're prepared for reset */ 2596 ice_prepare_for_reset(sc); 2597 2598 /* 2599 * Release the iflib context lock and wait for the device to finish 2600 * resetting. 2601 */ 2602 IFLIB_CTX_UNLOCK(sc); 2603 status = ice_reset(hw, ICE_RESET_PFR); 2604 IFLIB_CTX_LOCK(sc); 2605 if (status) { 2606 device_printf(sc->dev, "device PF reset failed, err %s\n", 2607 ice_status_str(status)); 2608 ice_set_state(&sc->state, ICE_STATE_RESET_FAILED); 2609 return; 2610 } 2611 2612 sc->soft_stats.pfr_count++; 2613 ice_rebuild(sc); 2614 } 2615 2616 /** 2617 * ice_init_device_features - Init device driver features 2618 * @sc: driver softc structure 2619 * 2620 * @pre assumes that the function capabilities bits have been set up by 2621 * ice_init_hw(). 2622 */ 2623 static void 2624 ice_init_device_features(struct ice_softc *sc) 2625 { 2626 /* 2627 * A failed pkg file download triggers safe mode, disabling advanced 2628 * device feature support 2629 */ 2630 if (ice_is_bit_set(sc->feat_en, ICE_FEATURE_SAFE_MODE)) 2631 return; 2632 2633 /* Set capabilities that all devices support */ 2634 ice_set_bit(ICE_FEATURE_SRIOV, sc->feat_cap); 2635 ice_set_bit(ICE_FEATURE_RSS, sc->feat_cap); 2636 ice_set_bit(ICE_FEATURE_LENIENT_LINK_MODE, sc->feat_cap); 2637 ice_set_bit(ICE_FEATURE_LINK_MGMT_VER_1, sc->feat_cap); 2638 ice_set_bit(ICE_FEATURE_LINK_MGMT_VER_2, sc->feat_cap); 2639 ice_set_bit(ICE_FEATURE_HEALTH_STATUS, sc->feat_cap); 2640 ice_set_bit(ICE_FEATURE_FW_LOGGING, sc->feat_cap); 2641 ice_set_bit(ICE_FEATURE_HAS_PBA, sc->feat_cap); 2642 2643 /* Disable features due to hardware limitations... */ 2644 if (!sc->hw.func_caps.common_cap.rss_table_size) 2645 ice_clear_bit(ICE_FEATURE_RSS, sc->feat_cap); 2646 /* Disable features due to firmware limitations... */ 2647 if (!ice_is_fw_health_report_supported(&sc->hw)) 2648 ice_clear_bit(ICE_FEATURE_HEALTH_STATUS, sc->feat_cap); 2649 if (!ice_fwlog_supported(&sc->hw)) 2650 ice_clear_bit(ICE_FEATURE_FW_LOGGING, sc->feat_cap); 2651 if (sc->hw.fwlog_cfg.options & ICE_FWLOG_OPTION_IS_REGISTERED) { 2652 if (ice_is_bit_set(sc->feat_cap, ICE_FEATURE_FW_LOGGING)) 2653 ice_set_bit(ICE_FEATURE_FW_LOGGING, sc->feat_en); 2654 else 2655 ice_fwlog_unregister(&sc->hw); 2656 } 2657 2658 /* Disable capabilities not supported by the OS */ 2659 ice_disable_unsupported_features(sc->feat_cap); 2660 2661 /* RSS is always enabled for iflib */ 2662 if (ice_is_bit_set(sc->feat_cap, ICE_FEATURE_RSS)) 2663 ice_set_bit(ICE_FEATURE_RSS, sc->feat_en); 2664 } 2665 2666 /** 2667 * ice_if_multi_set - Callback to update Multicast filters in HW 2668 * @ctx: iflib ctx structure 2669 * 2670 * Called by iflib in response to SIOCDELMULTI and SIOCADDMULTI. Must search 2671 * the if_multiaddrs list and determine which filters have been added or 2672 * removed from the list, and update HW programming to reflect the new list. 2673 * 2674 * @pre assumes the caller holds the iflib CTX lock 2675 */ 2676 static void 2677 ice_if_multi_set(if_ctx_t ctx) 2678 { 2679 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2680 int err; 2681 2682 ASSERT_CTX_LOCKED(sc); 2683 2684 /* Do not handle multicast configuration in recovery mode */ 2685 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 2686 return; 2687 2688 err = ice_sync_multicast_filters(sc); 2689 if (err) { 2690 device_printf(sc->dev, 2691 "Failed to synchronize multicast filter list: %s\n", 2692 ice_err_str(err)); 2693 return; 2694 } 2695 } 2696 2697 /** 2698 * ice_if_vlan_register - Register a VLAN with the hardware 2699 * @ctx: iflib ctx pointer 2700 * @vtag: VLAN to add 2701 * 2702 * Programs the main PF VSI with a hardware filter for the given VLAN. 2703 * 2704 * @pre assumes the caller holds the iflib CTX lock 2705 */ 2706 static void 2707 ice_if_vlan_register(if_ctx_t ctx, u16 vtag) 2708 { 2709 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2710 enum ice_status status; 2711 2712 ASSERT_CTX_LOCKED(sc); 2713 2714 /* Do not handle VLAN configuration in recovery mode */ 2715 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 2716 return; 2717 2718 status = ice_add_vlan_hw_filter(&sc->pf_vsi, vtag); 2719 if (status) { 2720 device_printf(sc->dev, 2721 "Failure adding VLAN %d to main VSI, err %s aq_err %s\n", 2722 vtag, ice_status_str(status), 2723 ice_aq_str(sc->hw.adminq.sq_last_status)); 2724 } 2725 } 2726 2727 /** 2728 * ice_if_vlan_unregister - Remove a VLAN filter from the hardware 2729 * @ctx: iflib ctx pointer 2730 * @vtag: VLAN to add 2731 * 2732 * Removes the previously programmed VLAN filter from the main PF VSI. 2733 * 2734 * @pre assumes the caller holds the iflib CTX lock 2735 */ 2736 static void 2737 ice_if_vlan_unregister(if_ctx_t ctx, u16 vtag) 2738 { 2739 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2740 enum ice_status status; 2741 2742 ASSERT_CTX_LOCKED(sc); 2743 2744 /* Do not handle VLAN configuration in recovery mode */ 2745 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 2746 return; 2747 2748 status = ice_remove_vlan_hw_filter(&sc->pf_vsi, vtag); 2749 if (status) { 2750 device_printf(sc->dev, 2751 "Failure removing VLAN %d from main VSI, err %s aq_err %s\n", 2752 vtag, ice_status_str(status), 2753 ice_aq_str(sc->hw.adminq.sq_last_status)); 2754 } 2755 } 2756 2757 /** 2758 * ice_if_stop - Stop the device 2759 * @ctx: iflib context structure 2760 * 2761 * Called by iflib to stop the device and bring it down. (i.e. ifconfig ice0 2762 * down) 2763 * 2764 * @pre assumes the caller holds the iflib CTX lock 2765 */ 2766 static void 2767 ice_if_stop(if_ctx_t ctx) 2768 { 2769 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2770 2771 ASSERT_CTX_LOCKED(sc); 2772 2773 /* 2774 * The iflib core may call IFDI_STOP prior to the first call to 2775 * IFDI_INIT. This will cause us to attempt to remove MAC filters we 2776 * don't have, and disable Tx queues which aren't yet configured. 2777 * Although it is likely these extra operations are harmless, they do 2778 * cause spurious warning messages to be displayed, which may confuse 2779 * users. 2780 * 2781 * To avoid these messages, we use a state bit indicating if we've 2782 * been initialized. It will be set when ice_if_init is called, and 2783 * cleared here in ice_if_stop. 2784 */ 2785 if (!ice_testandclear_state(&sc->state, ICE_STATE_DRIVER_INITIALIZED)) 2786 return; 2787 2788 if (ice_test_state(&sc->state, ICE_STATE_RESET_FAILED)) { 2789 device_printf(sc->dev, "request to stop interface cannot be completed as the device failed to reset\n"); 2790 return; 2791 } 2792 2793 if (ice_test_state(&sc->state, ICE_STATE_PREPARED_FOR_RESET)) { 2794 device_printf(sc->dev, "request to stop interface while device is prepared for impending reset\n"); 2795 return; 2796 } 2797 2798 /* Remove the MAC filters, stop Tx, and stop Rx. We don't check the 2799 * return of these functions because there's nothing we can really do 2800 * if they fail, and the functions already print error messages. 2801 * Just try to shut down as much as we can. 2802 */ 2803 ice_rm_pf_default_mac_filters(sc); 2804 2805 /* Dissociate the Tx and Rx queues from the interrupts */ 2806 ice_flush_txq_interrupts(&sc->pf_vsi); 2807 ice_flush_rxq_interrupts(&sc->pf_vsi); 2808 2809 /* Disable the Tx and Rx queues */ 2810 ice_vsi_disable_tx(&sc->pf_vsi); 2811 ice_control_rx_queues(&sc->pf_vsi, false); 2812 } 2813 2814 /** 2815 * ice_if_get_counter - Get current value of an ifnet statistic 2816 * @ctx: iflib context pointer 2817 * @counter: ifnet counter to read 2818 * 2819 * Reads the current value of an ifnet counter for the device. 2820 * 2821 * This function is not protected by the iflib CTX lock. 2822 */ 2823 static uint64_t 2824 ice_if_get_counter(if_ctx_t ctx, ift_counter counter) 2825 { 2826 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2827 2828 /* Return the counter for the main PF VSI */ 2829 return ice_get_ifnet_counter(&sc->pf_vsi, counter); 2830 } 2831 2832 /** 2833 * ice_request_stack_reinit - Request that iflib re-initialize 2834 * @sc: the device private softc 2835 * 2836 * Request that the device be brought down and up, to re-initialize. For 2837 * example, this may be called when a device reset occurs, or when Tx and Rx 2838 * queues need to be re-initialized. 2839 * 2840 * This is required because the iflib state is outside the driver, and must be 2841 * re-initialized if we need to resart Tx and Rx queues. 2842 */ 2843 void 2844 ice_request_stack_reinit(struct ice_softc *sc) 2845 { 2846 if (CTX_ACTIVE(sc->ctx)) { 2847 iflib_request_reset(sc->ctx); 2848 iflib_admin_intr_deferred(sc->ctx); 2849 } 2850 } 2851 2852 /** 2853 * ice_driver_is_detaching - Check if the driver is detaching/unloading 2854 * @sc: device private softc 2855 * 2856 * Returns true if the driver is detaching, false otherwise. 2857 * 2858 * @remark on newer kernels, take advantage of iflib_in_detach in order to 2859 * report detachment correctly as early as possible. 2860 * 2861 * @remark this function is used by various code paths that want to avoid 2862 * running if the driver is about to be removed. This includes sysctls and 2863 * other driver access points. Note that it does not fully resolve 2864 * detach-based race conditions as it is possible for a thread to race with 2865 * iflib_in_detach. 2866 */ 2867 bool 2868 ice_driver_is_detaching(struct ice_softc *sc) 2869 { 2870 return (ice_test_state(&sc->state, ICE_STATE_DETACHING) || 2871 iflib_in_detach(sc->ctx)); 2872 } 2873 2874 /** 2875 * ice_if_priv_ioctl - Device private ioctl handler 2876 * @ctx: iflib context pointer 2877 * @command: The ioctl command issued 2878 * @data: ioctl specific data 2879 * 2880 * iflib callback for handling custom driver specific ioctls. 2881 * 2882 * @pre Assumes that the iflib context lock is held. 2883 */ 2884 static int 2885 ice_if_priv_ioctl(if_ctx_t ctx, u_long command, caddr_t data) 2886 { 2887 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2888 struct ifdrv *ifd; 2889 device_t dev = sc->dev; 2890 2891 if (data == NULL) 2892 return (EINVAL); 2893 2894 ASSERT_CTX_LOCKED(sc); 2895 2896 /* Make sure the command type is valid */ 2897 switch (command) { 2898 case SIOCSDRVSPEC: 2899 case SIOCGDRVSPEC: 2900 /* Accepted commands */ 2901 break; 2902 case SIOCGPRIVATE_0: 2903 /* 2904 * Although we do not support this ioctl command, it's 2905 * expected that iflib will forward it to the IFDI_PRIV_IOCTL 2906 * handler. Do not print a message in this case 2907 */ 2908 return (ENOTSUP); 2909 default: 2910 /* 2911 * If we get a different command for this function, it's 2912 * definitely unexpected, so log a message indicating what 2913 * command we got for debugging purposes. 2914 */ 2915 device_printf(dev, "%s: unexpected ioctl command %08lx\n", 2916 __func__, command); 2917 return (EINVAL); 2918 } 2919 2920 ifd = (struct ifdrv *)data; 2921 2922 switch (ifd->ifd_cmd) { 2923 case ICE_NVM_ACCESS: 2924 return ice_handle_nvm_access_ioctl(sc, ifd); 2925 default: 2926 return EINVAL; 2927 } 2928 } 2929 2930 /** 2931 * ice_if_i2c_req - I2C request handler for iflib 2932 * @ctx: iflib context pointer 2933 * @req: The I2C parameters to use 2934 * 2935 * Read from the port's I2C eeprom using the parameters from the ioctl. 2936 * 2937 * @remark The iflib-only part is pretty simple. 2938 */ 2939 static int 2940 ice_if_i2c_req(if_ctx_t ctx, struct ifi2creq *req) 2941 { 2942 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2943 2944 return ice_handle_i2c_req(sc, req); 2945 } 2946 2947 /** 2948 * ice_if_suspend - PCI device suspend handler for iflib 2949 * @ctx: iflib context pointer 2950 * 2951 * Deinitializes the driver and clears HW resources in preparation for 2952 * suspend or an FLR. 2953 * 2954 * @returns 0; this return value is ignored 2955 */ 2956 static int 2957 ice_if_suspend(if_ctx_t ctx) 2958 { 2959 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2960 2961 /* At least a PFR is always going to happen after this; 2962 * either via FLR or during the D3->D0 transition. 2963 */ 2964 ice_clear_state(&sc->state, ICE_STATE_RESET_PFR_REQ); 2965 2966 ice_prepare_for_reset(sc); 2967 2968 return (0); 2969 } 2970 2971 /** 2972 * ice_if_resume - PCI device resume handler for iflib 2973 * @ctx: iflib context pointer 2974 * 2975 * Reinitializes the driver and the HW after PCI resume or after 2976 * an FLR. An init is performed by iflib after this function is finished. 2977 * 2978 * @returns 0; this return value is ignored 2979 */ 2980 static int 2981 ice_if_resume(if_ctx_t ctx) 2982 { 2983 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2984 2985 ice_rebuild(sc); 2986 2987 return (0); 2988 } 2989 2990