1 /* SPDX-License-Identifier: BSD-3-Clause */ 2 /* Copyright (c) 2023, 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 reinit_hw: 477 478 fw_mode = ice_get_fw_mode(hw); 479 if (fw_mode == ICE_FW_MODE_REC) { 480 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"); 481 482 err = ice_attach_pre_recovery_mode(sc); 483 if (err) 484 goto free_pci_mapping; 485 486 return (0); 487 } 488 489 /* Initialize the hw data structure */ 490 status = ice_init_hw(hw); 491 if (status) { 492 if (status == ICE_ERR_FW_API_VER) { 493 /* Enter recovery mode, so that the driver remains 494 * loaded. This way, if the system administrator 495 * cannot update the driver, they may still attempt to 496 * downgrade the NVM. 497 */ 498 err = ice_attach_pre_recovery_mode(sc); 499 if (err) 500 goto free_pci_mapping; 501 502 return (0); 503 } else { 504 err = EIO; 505 device_printf(dev, "Unable to initialize hw, err %s aq_err %s\n", 506 ice_status_str(status), 507 ice_aq_str(hw->adminq.sq_last_status)); 508 } 509 goto free_pci_mapping; 510 } 511 512 ice_init_device_features(sc); 513 514 /* Notify firmware of the device driver version */ 515 err = ice_send_version(sc); 516 if (err) 517 goto deinit_hw; 518 519 /* 520 * Success indicates a change was made that requires a reinitialization 521 * of the hardware 522 */ 523 err = ice_load_pkg_file(sc); 524 if (err == ICE_SUCCESS) { 525 ice_deinit_hw(hw); 526 goto reinit_hw; 527 } 528 529 err = ice_init_link_events(sc); 530 if (err) { 531 device_printf(dev, "ice_init_link_events failed: %s\n", 532 ice_err_str(err)); 533 goto deinit_hw; 534 } 535 536 /* Initialize VLAN mode in FW; if dual VLAN mode is supported by the package 537 * and firmware, this will force them to use single VLAN mode. 538 */ 539 status = ice_set_vlan_mode(hw); 540 if (status) { 541 err = EIO; 542 device_printf(dev, "Unable to initialize VLAN mode, err %s aq_err %s\n", 543 ice_status_str(status), 544 ice_aq_str(hw->adminq.sq_last_status)); 545 goto deinit_hw; 546 } 547 548 ice_print_nvm_version(sc); 549 550 /* Setup the MAC address */ 551 iflib_set_mac(ctx, hw->port_info->mac.lan_addr); 552 553 /* Setup the iflib softc context structure */ 554 ice_setup_scctx(sc); 555 556 /* Initialize the Tx queue manager */ 557 err = ice_resmgr_init(&sc->tx_qmgr, hw->func_caps.common_cap.num_txq); 558 if (err) { 559 device_printf(dev, "Unable to initialize Tx queue manager: %s\n", 560 ice_err_str(err)); 561 goto deinit_hw; 562 } 563 564 /* Initialize the Rx queue manager */ 565 err = ice_resmgr_init(&sc->rx_qmgr, hw->func_caps.common_cap.num_rxq); 566 if (err) { 567 device_printf(dev, "Unable to initialize Rx queue manager: %s\n", 568 ice_err_str(err)); 569 goto free_tx_qmgr; 570 } 571 572 /* Initialize the interrupt resource manager */ 573 err = ice_alloc_intr_tracking(sc); 574 if (err) 575 /* Errors are already printed */ 576 goto free_rx_qmgr; 577 578 /* Determine maximum number of VSIs we'll prepare for */ 579 sc->num_available_vsi = min(ICE_MAX_VSI_AVAILABLE, 580 hw->func_caps.guar_num_vsi); 581 582 if (!sc->num_available_vsi) { 583 err = EIO; 584 device_printf(dev, "No VSIs allocated to host\n"); 585 goto free_intr_tracking; 586 } 587 588 /* Allocate storage for the VSI pointers */ 589 sc->all_vsi = (struct ice_vsi **) 590 malloc(sizeof(struct ice_vsi *) * sc->num_available_vsi, 591 M_ICE, M_WAITOK | M_ZERO); 592 if (!sc->all_vsi) { 593 err = ENOMEM; 594 device_printf(dev, "Unable to allocate VSI array\n"); 595 goto free_intr_tracking; 596 } 597 598 /* 599 * Prepare the statically allocated primary PF VSI in the softc 600 * structure. Other VSIs will be dynamically allocated as needed. 601 */ 602 ice_setup_pf_vsi(sc); 603 604 err = ice_alloc_vsi_qmap(&sc->pf_vsi, scctx->isc_ntxqsets_max, 605 scctx->isc_nrxqsets_max); 606 if (err) { 607 device_printf(dev, "Unable to allocate VSI Queue maps\n"); 608 goto free_main_vsi; 609 } 610 611 /* Allocate MSI-X vectors (due to isc_flags IFLIB_SKIP_MSIX) */ 612 err = ice_allocate_msix(sc); 613 if (err) 614 goto free_main_vsi; 615 616 return 0; 617 618 free_main_vsi: 619 /* ice_release_vsi will free the queue maps if they were allocated */ 620 ice_release_vsi(&sc->pf_vsi); 621 free(sc->all_vsi, M_ICE); 622 sc->all_vsi = NULL; 623 free_intr_tracking: 624 ice_free_intr_tracking(sc); 625 free_rx_qmgr: 626 ice_resmgr_destroy(&sc->rx_qmgr); 627 free_tx_qmgr: 628 ice_resmgr_destroy(&sc->tx_qmgr); 629 deinit_hw: 630 ice_deinit_hw(hw); 631 free_pci_mapping: 632 ice_free_pci_mapping(sc); 633 destroy_admin_timer: 634 mtx_lock(&sc->admin_mtx); 635 callout_stop(&sc->admin_timer); 636 mtx_unlock(&sc->admin_mtx); 637 mtx_destroy(&sc->admin_mtx); 638 return err; 639 } /* ice_if_attach_pre */ 640 641 /** 642 * ice_attach_pre_recovery_mode - Limited driver attach_pre for FW recovery 643 * @sc: the device private softc 644 * 645 * Loads the device driver in limited Firmware Recovery mode, intended to 646 * allow users to update the firmware to attempt to recover the device. 647 * 648 * @remark We may enter recovery mode in case either (a) the firmware is 649 * detected to be in an invalid state and must be re-programmed, or (b) the 650 * driver detects that the loaded firmware has a non-compatible API version 651 * that the driver cannot operate with. 652 */ 653 static int 654 ice_attach_pre_recovery_mode(struct ice_softc *sc) 655 { 656 ice_set_state(&sc->state, ICE_STATE_RECOVERY_MODE); 657 658 /* Setup the iflib softc context */ 659 ice_setup_scctx(sc); 660 661 /* Setup the PF VSI back pointer */ 662 sc->pf_vsi.sc = sc; 663 664 /* 665 * We still need to allocate MSI-X vectors since we need one vector to 666 * run the administrative admin interrupt 667 */ 668 return ice_allocate_msix(sc); 669 } 670 671 /** 672 * ice_update_link_status - notify OS of link state change 673 * @sc: device private softc structure 674 * @update_media: true if we should update media even if link didn't change 675 * 676 * Called to notify iflib core of link status changes. Should be called once 677 * during attach_post, and whenever link status changes during runtime. 678 * 679 * This call only updates the currently supported media types if the link 680 * status changed, or if update_media is set to true. 681 */ 682 static void 683 ice_update_link_status(struct ice_softc *sc, bool update_media) 684 { 685 struct ice_hw *hw = &sc->hw; 686 enum ice_status status; 687 688 /* Never report link up when in recovery mode */ 689 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 690 return; 691 692 /* Report link status to iflib only once each time it changes */ 693 if (!ice_testandset_state(&sc->state, ICE_STATE_LINK_STATUS_REPORTED)) { 694 if (sc->link_up) { /* link is up */ 695 uint64_t baudrate = ice_aq_speed_to_rate(sc->hw.port_info); 696 697 ice_set_default_local_lldp_mib(sc); 698 699 iflib_link_state_change(sc->ctx, LINK_STATE_UP, baudrate); 700 ice_rdma_link_change(sc, LINK_STATE_UP, baudrate); 701 702 ice_link_up_msg(sc); 703 } else { /* link is down */ 704 iflib_link_state_change(sc->ctx, LINK_STATE_DOWN, 0); 705 ice_rdma_link_change(sc, LINK_STATE_DOWN, 0); 706 } 707 update_media = true; 708 } 709 710 /* Update the supported media types */ 711 if (update_media) { 712 status = ice_add_media_types(sc, sc->media); 713 if (status) 714 device_printf(sc->dev, "Error adding device media types: %s aq_err %s\n", 715 ice_status_str(status), 716 ice_aq_str(hw->adminq.sq_last_status)); 717 } 718 } 719 720 /** 721 * ice_if_attach_post - Late device attach logic 722 * @ctx: the iflib context structure 723 * 724 * Called by iflib to finish up attaching the device. Performs any attach 725 * logic which must wait until after the Tx and Rx queues have been 726 * allocated. 727 */ 728 static int 729 ice_if_attach_post(if_ctx_t ctx) 730 { 731 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 732 if_t ifp = iflib_get_ifp(ctx); 733 int err; 734 735 ASSERT_CTX_LOCKED(sc); 736 737 /* We don't yet support loading if MSI-X is not supported */ 738 if (sc->scctx->isc_intr != IFLIB_INTR_MSIX) { 739 device_printf(sc->dev, "The ice driver does not support loading without MSI-X\n"); 740 return (ENOTSUP); 741 } 742 743 /* The ifnet structure hasn't yet been initialized when the attach_pre 744 * handler is called, so wait until attach_post to setup the 745 * isc_max_frame_size. 746 */ 747 748 sc->ifp = ifp; 749 sc->scctx->isc_max_frame_size = if_getmtu(ifp) + 750 ETHER_HDR_LEN + ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN; 751 752 /* 753 * If we are in recovery mode, only perform a limited subset of 754 * initialization to support NVM recovery. 755 */ 756 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) { 757 ice_attach_post_recovery_mode(sc); 758 return (0); 759 } 760 761 sc->pf_vsi.max_frame_size = sc->scctx->isc_max_frame_size; 762 763 err = ice_initialize_vsi(&sc->pf_vsi); 764 if (err) { 765 device_printf(sc->dev, "Unable to initialize Main VSI: %s\n", 766 ice_err_str(err)); 767 return err; 768 } 769 770 /* Enable FW health event reporting */ 771 ice_init_health_events(sc); 772 773 /* Configure the main PF VSI for RSS */ 774 err = ice_config_rss(&sc->pf_vsi); 775 if (err) { 776 device_printf(sc->dev, 777 "Unable to configure RSS for the main VSI, err %s\n", 778 ice_err_str(err)); 779 return err; 780 } 781 782 /* Configure switch to drop transmitted LLDP and PAUSE frames */ 783 err = ice_cfg_pf_ethertype_filters(sc); 784 if (err) 785 return err; 786 787 ice_get_and_print_bus_info(sc); 788 789 ice_set_link_management_mode(sc); 790 791 ice_init_saved_phy_cfg(sc); 792 793 ice_cfg_pba_num(sc); 794 795 ice_add_device_sysctls(sc); 796 797 /* Get DCBX/LLDP state and start DCBX agent */ 798 ice_init_dcb_setup(sc); 799 800 /* Setup link configuration parameters */ 801 ice_init_link_configuration(sc); 802 ice_update_link_status(sc, true); 803 804 /* Configure interrupt causes for the administrative interrupt */ 805 ice_configure_misc_interrupts(sc); 806 807 /* Enable ITR 0 right away, so that we can handle admin interrupts */ 808 ice_enable_intr(&sc->hw, sc->irqvs[0].me); 809 810 err = ice_rdma_pf_attach(sc); 811 if (err) 812 return (err); 813 814 /* Start the admin timer */ 815 mtx_lock(&sc->admin_mtx); 816 callout_reset(&sc->admin_timer, hz/2, ice_admin_timer, sc); 817 mtx_unlock(&sc->admin_mtx); 818 819 ice_clear_state(&sc->state, ICE_STATE_ATTACHING); 820 821 return 0; 822 } /* ice_if_attach_post */ 823 824 /** 825 * ice_attach_post_recovery_mode - Limited driver attach_post for FW recovery 826 * @sc: the device private softc 827 * 828 * Performs minimal work to prepare the driver to recover an NVM in case the 829 * firmware is in recovery mode. 830 */ 831 static void 832 ice_attach_post_recovery_mode(struct ice_softc *sc) 833 { 834 /* Configure interrupt causes for the administrative interrupt */ 835 ice_configure_misc_interrupts(sc); 836 837 /* Enable ITR 0 right away, so that we can handle admin interrupts */ 838 ice_enable_intr(&sc->hw, sc->irqvs[0].me); 839 840 /* Start the admin timer */ 841 mtx_lock(&sc->admin_mtx); 842 callout_reset(&sc->admin_timer, hz/2, ice_admin_timer, sc); 843 mtx_unlock(&sc->admin_mtx); 844 845 ice_clear_state(&sc->state, ICE_STATE_ATTACHING); 846 } 847 848 /** 849 * ice_free_irqvs - Free IRQ vector memory 850 * @sc: the device private softc structure 851 * 852 * Free IRQ vector memory allocated during ice_if_msix_intr_assign. 853 */ 854 static void 855 ice_free_irqvs(struct ice_softc *sc) 856 { 857 struct ice_vsi *vsi = &sc->pf_vsi; 858 if_ctx_t ctx = sc->ctx; 859 int i; 860 861 /* If the irqvs array is NULL, then there are no vectors to free */ 862 if (sc->irqvs == NULL) 863 return; 864 865 /* Free the IRQ vectors */ 866 for (i = 0; i < sc->num_irq_vectors; i++) 867 iflib_irq_free(ctx, &sc->irqvs[i].irq); 868 869 /* Clear the irqv pointers */ 870 for (i = 0; i < vsi->num_rx_queues; i++) 871 vsi->rx_queues[i].irqv = NULL; 872 873 for (i = 0; i < vsi->num_tx_queues; i++) 874 vsi->tx_queues[i].irqv = NULL; 875 876 /* Release the vector array memory */ 877 free(sc->irqvs, M_ICE); 878 sc->irqvs = NULL; 879 sc->num_irq_vectors = 0; 880 } 881 882 /** 883 * ice_if_detach - Device driver detach logic 884 * @ctx: iflib context structure 885 * 886 * Perform device shutdown logic to detach the device driver. 887 * 888 * Note that there is no guarantee of the ordering of ice_if_queues_free() and 889 * ice_if_detach(). It is possible for the functions to be called in either 890 * order, and they must not assume to have a strict ordering. 891 */ 892 static int 893 ice_if_detach(if_ctx_t ctx) 894 { 895 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 896 struct ice_vsi *vsi = &sc->pf_vsi; 897 int i; 898 899 ASSERT_CTX_LOCKED(sc); 900 901 /* Indicate that we're detaching */ 902 ice_set_state(&sc->state, ICE_STATE_DETACHING); 903 904 /* Stop the admin timer */ 905 mtx_lock(&sc->admin_mtx); 906 callout_stop(&sc->admin_timer); 907 mtx_unlock(&sc->admin_mtx); 908 mtx_destroy(&sc->admin_mtx); 909 910 ice_rdma_pf_detach(sc); 911 912 /* Free allocated media types */ 913 ifmedia_removeall(sc->media); 914 915 /* Free the Tx and Rx sysctl contexts, and assign NULL to the node 916 * pointers. Note, the calls here and those in ice_if_queues_free() 917 * are *BOTH* necessary, as we cannot guarantee which path will be 918 * run first 919 */ 920 ice_vsi_del_txqs_ctx(vsi); 921 ice_vsi_del_rxqs_ctx(vsi); 922 923 /* Release MSI-X resources */ 924 ice_free_irqvs(sc); 925 926 for (i = 0; i < sc->num_available_vsi; i++) { 927 if (sc->all_vsi[i]) 928 ice_release_vsi(sc->all_vsi[i]); 929 } 930 931 if (sc->all_vsi) { 932 free(sc->all_vsi, M_ICE); 933 sc->all_vsi = NULL; 934 } 935 936 /* Release MSI-X memory */ 937 pci_release_msi(sc->dev); 938 939 if (sc->msix_table != NULL) { 940 bus_release_resource(sc->dev, SYS_RES_MEMORY, 941 rman_get_rid(sc->msix_table), 942 sc->msix_table); 943 sc->msix_table = NULL; 944 } 945 946 ice_free_intr_tracking(sc); 947 948 /* Destroy the queue managers */ 949 ice_resmgr_destroy(&sc->tx_qmgr); 950 ice_resmgr_destroy(&sc->rx_qmgr); 951 952 if (!ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 953 ice_deinit_hw(&sc->hw); 954 955 ice_free_pci_mapping(sc); 956 957 return 0; 958 } /* ice_if_detach */ 959 960 /** 961 * ice_if_tx_queues_alloc - Allocate Tx queue memory 962 * @ctx: iflib context structure 963 * @vaddrs: virtual addresses for the queue memory 964 * @paddrs: physical addresses for the queue memory 965 * @ntxqs: the number of Tx queues per set (should always be 1) 966 * @ntxqsets: the number of Tx queue sets to allocate 967 * 968 * Called by iflib to allocate Tx queues for the device. Allocates driver 969 * memory to track each queue, the status arrays used for descriptor 970 * status reporting, and Tx queue sysctls. 971 */ 972 static int 973 ice_if_tx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, 974 int __invariant_only ntxqs, int ntxqsets) 975 { 976 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 977 struct ice_vsi *vsi = &sc->pf_vsi; 978 struct ice_tx_queue *txq; 979 int err, i, j; 980 981 MPASS(ntxqs == 1); 982 MPASS(sc->scctx->isc_ntxd[0] <= ICE_MAX_DESC_COUNT); 983 ASSERT_CTX_LOCKED(sc); 984 985 /* Do not bother allocating queues if we're in recovery mode */ 986 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 987 return (0); 988 989 /* Allocate queue structure memory */ 990 if (!(vsi->tx_queues = 991 (struct ice_tx_queue *) malloc(sizeof(struct ice_tx_queue) * ntxqsets, M_ICE, M_NOWAIT | M_ZERO))) { 992 device_printf(sc->dev, "Unable to allocate Tx queue memory\n"); 993 return (ENOMEM); 994 } 995 996 /* Allocate report status arrays */ 997 for (i = 0, txq = vsi->tx_queues; i < ntxqsets; i++, txq++) { 998 if (!(txq->tx_rsq = 999 (uint16_t *) malloc(sizeof(uint16_t) * sc->scctx->isc_ntxd[0], M_ICE, M_NOWAIT))) { 1000 device_printf(sc->dev, "Unable to allocate tx_rsq memory\n"); 1001 err = ENOMEM; 1002 goto free_tx_queues; 1003 } 1004 /* Initialize report status array */ 1005 for (j = 0; j < sc->scctx->isc_ntxd[0]; j++) 1006 txq->tx_rsq[j] = QIDX_INVALID; 1007 } 1008 1009 /* Assign queues from PF space to the main VSI */ 1010 err = ice_resmgr_assign_contiguous(&sc->tx_qmgr, vsi->tx_qmap, ntxqsets); 1011 if (err) { 1012 device_printf(sc->dev, "Unable to assign PF queues: %s\n", 1013 ice_err_str(err)); 1014 goto free_tx_queues; 1015 } 1016 vsi->qmap_type = ICE_RESMGR_ALLOC_CONTIGUOUS; 1017 1018 /* Add Tx queue sysctls context */ 1019 ice_vsi_add_txqs_ctx(vsi); 1020 1021 for (i = 0, txq = vsi->tx_queues; i < ntxqsets; i++, txq++) { 1022 /* q_handle == me when only one TC */ 1023 txq->me = txq->q_handle = i; 1024 txq->vsi = vsi; 1025 1026 /* store the queue size for easier access */ 1027 txq->desc_count = sc->scctx->isc_ntxd[0]; 1028 1029 /* get the virtual and physical address of the hardware queues */ 1030 txq->tail = QTX_COMM_DBELL(vsi->tx_qmap[i]); 1031 txq->tx_base = (struct ice_tx_desc *)vaddrs[i]; 1032 txq->tx_paddr = paddrs[i]; 1033 1034 ice_add_txq_sysctls(txq); 1035 } 1036 1037 vsi->num_tx_queues = ntxqsets; 1038 1039 return (0); 1040 1041 free_tx_queues: 1042 for (i = 0, txq = vsi->tx_queues; i < ntxqsets; i++, txq++) { 1043 if (txq->tx_rsq != NULL) { 1044 free(txq->tx_rsq, M_ICE); 1045 txq->tx_rsq = NULL; 1046 } 1047 } 1048 free(vsi->tx_queues, M_ICE); 1049 vsi->tx_queues = NULL; 1050 return err; 1051 } 1052 1053 /** 1054 * ice_if_rx_queues_alloc - Allocate Rx queue memory 1055 * @ctx: iflib context structure 1056 * @vaddrs: virtual addresses for the queue memory 1057 * @paddrs: physical addresses for the queue memory 1058 * @nrxqs: number of Rx queues per set (should always be 1) 1059 * @nrxqsets: number of Rx queue sets to allocate 1060 * 1061 * Called by iflib to allocate Rx queues for the device. Allocates driver 1062 * memory to track each queue, as well as sets up the Rx queue sysctls. 1063 */ 1064 static int 1065 ice_if_rx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, 1066 int __invariant_only nrxqs, int nrxqsets) 1067 { 1068 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1069 struct ice_vsi *vsi = &sc->pf_vsi; 1070 struct ice_rx_queue *rxq; 1071 int err, i; 1072 1073 MPASS(nrxqs == 1); 1074 MPASS(sc->scctx->isc_nrxd[0] <= ICE_MAX_DESC_COUNT); 1075 ASSERT_CTX_LOCKED(sc); 1076 1077 /* Do not bother allocating queues if we're in recovery mode */ 1078 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1079 return (0); 1080 1081 /* Allocate queue structure memory */ 1082 if (!(vsi->rx_queues = 1083 (struct ice_rx_queue *) malloc(sizeof(struct ice_rx_queue) * nrxqsets, M_ICE, M_NOWAIT | M_ZERO))) { 1084 device_printf(sc->dev, "Unable to allocate Rx queue memory\n"); 1085 return (ENOMEM); 1086 } 1087 1088 /* Assign queues from PF space to the main VSI */ 1089 err = ice_resmgr_assign_contiguous(&sc->rx_qmgr, vsi->rx_qmap, nrxqsets); 1090 if (err) { 1091 device_printf(sc->dev, "Unable to assign PF queues: %s\n", 1092 ice_err_str(err)); 1093 goto free_rx_queues; 1094 } 1095 vsi->qmap_type = ICE_RESMGR_ALLOC_CONTIGUOUS; 1096 1097 /* Add Rx queue sysctls context */ 1098 ice_vsi_add_rxqs_ctx(vsi); 1099 1100 for (i = 0, rxq = vsi->rx_queues; i < nrxqsets; i++, rxq++) { 1101 rxq->me = i; 1102 rxq->vsi = vsi; 1103 1104 /* store the queue size for easier access */ 1105 rxq->desc_count = sc->scctx->isc_nrxd[0]; 1106 1107 /* get the virtual and physical address of the hardware queues */ 1108 rxq->tail = QRX_TAIL(vsi->rx_qmap[i]); 1109 rxq->rx_base = (union ice_32b_rx_flex_desc *)vaddrs[i]; 1110 rxq->rx_paddr = paddrs[i]; 1111 1112 ice_add_rxq_sysctls(rxq); 1113 } 1114 1115 vsi->num_rx_queues = nrxqsets; 1116 1117 return (0); 1118 1119 free_rx_queues: 1120 free(vsi->rx_queues, M_ICE); 1121 vsi->rx_queues = NULL; 1122 return err; 1123 } 1124 1125 /** 1126 * ice_if_queues_free - Free queue memory 1127 * @ctx: the iflib context structure 1128 * 1129 * Free queue memory allocated by ice_if_tx_queues_alloc() and 1130 * ice_if_rx_queues_alloc(). 1131 * 1132 * There is no guarantee that ice_if_queues_free() and ice_if_detach() will be 1133 * called in the same order. It's possible for ice_if_queues_free() to be 1134 * called prior to ice_if_detach(), and vice versa. 1135 * 1136 * For this reason, the main VSI is a static member of the ice_softc, which is 1137 * not free'd until after iflib finishes calling both of these functions. 1138 * 1139 * Thus, care must be taken in how we manage the memory being freed by this 1140 * function, and in what tasks it can and must perform. 1141 */ 1142 static void 1143 ice_if_queues_free(if_ctx_t ctx) 1144 { 1145 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1146 struct ice_vsi *vsi = &sc->pf_vsi; 1147 struct ice_tx_queue *txq; 1148 int i; 1149 1150 /* Free the Tx and Rx sysctl contexts, and assign NULL to the node 1151 * pointers. Note, the calls here and those in ice_if_detach() 1152 * are *BOTH* necessary, as we cannot guarantee which path will be 1153 * run first 1154 */ 1155 ice_vsi_del_txqs_ctx(vsi); 1156 ice_vsi_del_rxqs_ctx(vsi); 1157 1158 /* Release MSI-X IRQ vectors, if not yet released in ice_if_detach */ 1159 ice_free_irqvs(sc); 1160 1161 if (vsi->tx_queues != NULL) { 1162 /* free the tx_rsq arrays */ 1163 for (i = 0, txq = vsi->tx_queues; i < vsi->num_tx_queues; i++, txq++) { 1164 if (txq->tx_rsq != NULL) { 1165 free(txq->tx_rsq, M_ICE); 1166 txq->tx_rsq = NULL; 1167 } 1168 } 1169 free(vsi->tx_queues, M_ICE); 1170 vsi->tx_queues = NULL; 1171 vsi->num_tx_queues = 0; 1172 } 1173 if (vsi->rx_queues != NULL) { 1174 free(vsi->rx_queues, M_ICE); 1175 vsi->rx_queues = NULL; 1176 vsi->num_rx_queues = 0; 1177 } 1178 } 1179 1180 /** 1181 * ice_msix_que - Fast interrupt handler for MSI-X receive queues 1182 * @arg: The Rx queue memory 1183 * 1184 * Interrupt filter function for iflib MSI-X interrupts. Called by iflib when 1185 * an MSI-X interrupt for a given queue is triggered. Currently this just asks 1186 * iflib to schedule the main Rx thread. 1187 */ 1188 static int 1189 ice_msix_que(void *arg) 1190 { 1191 struct ice_rx_queue __unused *rxq = (struct ice_rx_queue *)arg; 1192 1193 /* TODO: dynamic ITR algorithm?? */ 1194 1195 return (FILTER_SCHEDULE_THREAD); 1196 } 1197 1198 /** 1199 * ice_msix_admin - Fast interrupt handler for MSI-X admin interrupt 1200 * @arg: pointer to device softc memory 1201 * 1202 * Called by iflib when an administrative interrupt occurs. Should perform any 1203 * fast logic for handling the interrupt cause, and then indicate whether the 1204 * admin task needs to be queued. 1205 */ 1206 static int 1207 ice_msix_admin(void *arg) 1208 { 1209 struct ice_softc *sc = (struct ice_softc *)arg; 1210 struct ice_hw *hw = &sc->hw; 1211 device_t dev = sc->dev; 1212 u32 oicr; 1213 1214 /* There is no safe way to modify the enabled miscellaneous causes of 1215 * the OICR vector at runtime, as doing so would be prone to race 1216 * conditions. Reading PFINT_OICR will unmask the associated interrupt 1217 * causes and allow future interrupts to occur. The admin interrupt 1218 * vector will not be re-enabled until after we exit this function, 1219 * but any delayed tasks must be resilient against possible "late 1220 * arrival" interrupts that occur while we're already handling the 1221 * task. This is done by using state bits and serializing these 1222 * delayed tasks via the admin status task function. 1223 */ 1224 oicr = rd32(hw, PFINT_OICR); 1225 1226 /* Processing multiple controlq interrupts on a single vector does not 1227 * provide an indication of which controlq triggered the interrupt. 1228 * We might try reading the INTEVENT bit of the respective PFINT_*_CTL 1229 * registers. However, the INTEVENT bit is not guaranteed to be set as 1230 * it gets automatically cleared when the hardware acknowledges the 1231 * interrupt. 1232 * 1233 * This means we don't really have a good indication of whether or 1234 * which controlq triggered this interrupt. We'll just notify the 1235 * admin task that it should check all the controlqs. 1236 */ 1237 ice_set_state(&sc->state, ICE_STATE_CONTROLQ_EVENT_PENDING); 1238 1239 if (oicr & PFINT_OICR_VFLR_M) { 1240 ice_set_state(&sc->state, ICE_STATE_VFLR_PENDING); 1241 } 1242 1243 if (oicr & PFINT_OICR_MAL_DETECT_M) { 1244 ice_set_state(&sc->state, ICE_STATE_MDD_PENDING); 1245 } 1246 1247 if (oicr & PFINT_OICR_GRST_M) { 1248 u32 reset; 1249 1250 reset = (rd32(hw, GLGEN_RSTAT) & GLGEN_RSTAT_RESET_TYPE_M) >> 1251 GLGEN_RSTAT_RESET_TYPE_S; 1252 1253 if (reset == ICE_RESET_CORER) 1254 sc->soft_stats.corer_count++; 1255 else if (reset == ICE_RESET_GLOBR) 1256 sc->soft_stats.globr_count++; 1257 else 1258 sc->soft_stats.empr_count++; 1259 1260 /* There are a couple of bits at play for handling resets. 1261 * First, the ICE_STATE_RESET_OICR_RECV bit is used to 1262 * indicate that the driver has received an OICR with a reset 1263 * bit active, indicating that a CORER/GLOBR/EMPR is about to 1264 * happen. Second, we set hw->reset_ongoing to indicate that 1265 * the hardware is in reset. We will set this back to false as 1266 * soon as the driver has determined that the hardware is out 1267 * of reset. 1268 * 1269 * If the driver wishes to trigger a request, it can set one of 1270 * the ICE_STATE_RESET_*_REQ bits, which will trigger the 1271 * correct type of reset. 1272 */ 1273 if (!ice_testandset_state(&sc->state, ICE_STATE_RESET_OICR_RECV)) 1274 hw->reset_ongoing = true; 1275 } 1276 1277 if (oicr & PFINT_OICR_ECC_ERR_M) { 1278 device_printf(dev, "ECC Error detected!\n"); 1279 ice_set_state(&sc->state, ICE_STATE_RESET_PFR_REQ); 1280 } 1281 1282 if (oicr & PFINT_OICR_PE_CRITERR_M) { 1283 device_printf(dev, "Critical Protocol Engine Error detected!\n"); 1284 ice_set_state(&sc->state, ICE_STATE_RESET_PFR_REQ); 1285 } 1286 1287 if (oicr & PFINT_OICR_PCI_EXCEPTION_M) { 1288 device_printf(dev, "PCI Exception detected!\n"); 1289 ice_set_state(&sc->state, ICE_STATE_RESET_PFR_REQ); 1290 } 1291 1292 if (oicr & PFINT_OICR_HMC_ERR_M) { 1293 /* Log the HMC errors, but don't disable the interrupt cause */ 1294 ice_log_hmc_error(hw, dev); 1295 } 1296 1297 return (FILTER_SCHEDULE_THREAD); 1298 } 1299 1300 /** 1301 * ice_allocate_msix - Allocate MSI-X vectors for the interface 1302 * @sc: the device private softc 1303 * 1304 * Map the MSI-X bar, and then request MSI-X vectors in a two-stage process. 1305 * 1306 * First, determine a suitable total number of vectors based on the number 1307 * of CPUs, RSS buckets, the administrative vector, and other demands such as 1308 * RDMA. 1309 * 1310 * Request the desired amount of vectors, and see how many we obtain. If we 1311 * don't obtain as many as desired, reduce the demands by lowering the number 1312 * of requested queues or reducing the demand from other features such as 1313 * RDMA. 1314 * 1315 * @remark This function is required because the driver sets the 1316 * IFLIB_SKIP_MSIX flag indicating that the driver will manage MSI-X vectors 1317 * manually. 1318 * 1319 * @remark This driver will only use MSI-X vectors. If this is not possible, 1320 * neither MSI or legacy interrupts will be tried. 1321 * 1322 * @post on success this function must set the following scctx parameters: 1323 * isc_vectors, isc_nrxqsets, isc_ntxqsets, and isc_intr. 1324 * 1325 * @returns zero on success or an error code on failure. 1326 */ 1327 static int 1328 ice_allocate_msix(struct ice_softc *sc) 1329 { 1330 bool iflib_override_queue_count = false; 1331 if_softc_ctx_t scctx = sc->scctx; 1332 device_t dev = sc->dev; 1333 cpuset_t cpus; 1334 int bar, queues, vectors, requested; 1335 int err = 0; 1336 int rdma; 1337 1338 /* Allocate the MSI-X bar */ 1339 bar = scctx->isc_msix_bar; 1340 sc->msix_table = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &bar, RF_ACTIVE); 1341 if (!sc->msix_table) { 1342 device_printf(dev, "Unable to map MSI-X table\n"); 1343 return (ENOMEM); 1344 } 1345 1346 /* Check if the iflib queue count sysctls have been set */ 1347 if (sc->ifc_sysctl_ntxqs || sc->ifc_sysctl_nrxqs) 1348 iflib_override_queue_count = true; 1349 1350 err = bus_get_cpus(dev, INTR_CPUS, sizeof(cpus), &cpus); 1351 if (err) { 1352 device_printf(dev, "%s: Unable to fetch the CPU list: %s\n", 1353 __func__, ice_err_str(err)); 1354 CPU_COPY(&all_cpus, &cpus); 1355 } 1356 1357 /* Attempt to mimic behavior of iflib_msix_init */ 1358 if (iflib_override_queue_count) { 1359 /* 1360 * If the override sysctls have been set, limit the queues to 1361 * the number of logical CPUs. 1362 */ 1363 queues = mp_ncpus; 1364 } else { 1365 /* 1366 * Otherwise, limit the queue count to the CPUs associated 1367 * with the NUMA node the device is associated with. 1368 */ 1369 queues = CPU_COUNT(&cpus); 1370 } 1371 1372 /* Clamp to the number of RSS buckets */ 1373 queues = imin(queues, rss_getnumbuckets()); 1374 1375 /* 1376 * Clamp the number of queue pairs to the minimum of the requested Tx 1377 * and Rx queues. 1378 */ 1379 queues = imin(queues, sc->ifc_sysctl_ntxqs ?: scctx->isc_ntxqsets); 1380 queues = imin(queues, sc->ifc_sysctl_nrxqs ?: scctx->isc_nrxqsets); 1381 1382 if (ice_is_bit_set(sc->feat_cap, ICE_FEATURE_RDMA)) { 1383 /* 1384 * Choose a number of RDMA vectors based on the number of CPUs 1385 * up to a maximum 1386 */ 1387 rdma = min(CPU_COUNT(&cpus), ICE_RDMA_MAX_MSIX); 1388 1389 /* Further limit by the user configurable tunable */ 1390 rdma = min(rdma, ice_rdma_max_msix); 1391 } else { 1392 rdma = 0; 1393 } 1394 1395 /* 1396 * Determine the number of vectors to request. Note that we also need 1397 * to allocate one vector for administrative tasks. 1398 */ 1399 requested = rdma + queues + 1; 1400 1401 vectors = requested; 1402 1403 err = pci_alloc_msix(dev, &vectors); 1404 if (err) { 1405 device_printf(dev, "Failed to allocate %d MSI-X vectors, err %s\n", 1406 vectors, ice_err_str(err)); 1407 goto err_free_msix_table; 1408 } 1409 1410 /* If we don't receive enough vectors, reduce demands */ 1411 if (vectors < requested) { 1412 int diff = requested - vectors; 1413 1414 device_printf(dev, "Requested %d MSI-X vectors, but got only %d\n", 1415 requested, vectors); 1416 1417 /* 1418 * The OS didn't grant us the requested number of vectors. 1419 * Check to see if we can reduce demands by limiting the 1420 * number of vectors allocated to certain features. 1421 */ 1422 1423 if (rdma >= diff) { 1424 /* Reduce the number of RDMA vectors we reserve */ 1425 rdma -= diff; 1426 diff = 0; 1427 } else { 1428 /* Disable RDMA and reduce the difference */ 1429 ice_clear_bit(ICE_FEATURE_RDMA, sc->feat_cap); 1430 diff -= rdma; 1431 rdma = 0; 1432 } 1433 1434 /* 1435 * If we still have a difference, we need to reduce the number 1436 * of queue pairs. 1437 * 1438 * However, we still need at least one vector for the admin 1439 * interrupt and one queue pair. 1440 */ 1441 if (queues <= diff) { 1442 device_printf(dev, "Unable to allocate sufficient MSI-X vectors\n"); 1443 err = (ERANGE); 1444 goto err_pci_release_msi; 1445 } 1446 1447 queues -= diff; 1448 } 1449 1450 device_printf(dev, "Using %d Tx and Rx queues\n", queues); 1451 if (rdma) 1452 device_printf(dev, "Reserving %d MSI-X interrupts for iRDMA\n", 1453 rdma); 1454 device_printf(dev, "Using MSI-X interrupts with %d vectors\n", 1455 vectors); 1456 1457 scctx->isc_vectors = vectors; 1458 scctx->isc_nrxqsets = queues; 1459 scctx->isc_ntxqsets = queues; 1460 scctx->isc_intr = IFLIB_INTR_MSIX; 1461 1462 sc->irdma_vectors = rdma; 1463 1464 /* Interrupt allocation tracking isn't required in recovery mode, 1465 * since neither RDMA nor VFs are enabled. 1466 */ 1467 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1468 return (0); 1469 1470 /* Keep track of which interrupt indices are being used for what */ 1471 sc->lan_vectors = vectors - rdma; 1472 err = ice_resmgr_assign_contiguous(&sc->imgr, sc->pf_imap, sc->lan_vectors); 1473 if (err) { 1474 device_printf(dev, "Unable to assign PF interrupt mapping: %s\n", 1475 ice_err_str(err)); 1476 goto err_pci_release_msi; 1477 } 1478 err = ice_resmgr_assign_contiguous(&sc->imgr, sc->rdma_imap, rdma); 1479 if (err) { 1480 device_printf(dev, "Unable to assign PF RDMA interrupt mapping: %s\n", 1481 ice_err_str(err)); 1482 ice_resmgr_release_map(&sc->imgr, sc->pf_imap, 1483 sc->lan_vectors); 1484 goto err_pci_release_msi; 1485 } 1486 1487 return (0); 1488 1489 err_pci_release_msi: 1490 pci_release_msi(dev); 1491 err_free_msix_table: 1492 if (sc->msix_table != NULL) { 1493 bus_release_resource(sc->dev, SYS_RES_MEMORY, 1494 rman_get_rid(sc->msix_table), 1495 sc->msix_table); 1496 sc->msix_table = NULL; 1497 } 1498 1499 return (err); 1500 } 1501 1502 /** 1503 * ice_if_msix_intr_assign - Assign MSI-X interrupt vectors to queues 1504 * @ctx: the iflib context structure 1505 * @msix: the number of vectors we were assigned 1506 * 1507 * Called by iflib to assign MSI-X vectors to queues. Currently requires that 1508 * we get at least the same number of vectors as we have queues, and that we 1509 * always have the same number of Tx and Rx queues. 1510 * 1511 * Tx queues use a softirq instead of using their own hardware interrupt. 1512 */ 1513 static int 1514 ice_if_msix_intr_assign(if_ctx_t ctx, int msix) 1515 { 1516 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1517 struct ice_vsi *vsi = &sc->pf_vsi; 1518 int err, i, vector; 1519 1520 ASSERT_CTX_LOCKED(sc); 1521 1522 if (vsi->num_rx_queues != vsi->num_tx_queues) { 1523 device_printf(sc->dev, 1524 "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", 1525 vsi->num_tx_queues, vsi->num_rx_queues); 1526 return (EOPNOTSUPP); 1527 } 1528 1529 if (msix < (vsi->num_rx_queues + 1)) { 1530 device_printf(sc->dev, 1531 "Not enough MSI-X vectors to assign one vector to each queue pair\n"); 1532 return (EOPNOTSUPP); 1533 } 1534 1535 /* Save the number of vectors for future use */ 1536 sc->num_irq_vectors = vsi->num_rx_queues + 1; 1537 1538 /* Allocate space to store the IRQ vector data */ 1539 if (!(sc->irqvs = 1540 (struct ice_irq_vector *) malloc(sizeof(struct ice_irq_vector) * (sc->num_irq_vectors), 1541 M_ICE, M_NOWAIT))) { 1542 device_printf(sc->dev, 1543 "Unable to allocate irqv memory\n"); 1544 return (ENOMEM); 1545 } 1546 1547 /* Administrative interrupt events will use vector 0 */ 1548 err = iflib_irq_alloc_generic(ctx, &sc->irqvs[0].irq, 1, IFLIB_INTR_ADMIN, 1549 ice_msix_admin, sc, 0, "admin"); 1550 if (err) { 1551 device_printf(sc->dev, 1552 "Failed to register Admin queue handler: %s\n", 1553 ice_err_str(err)); 1554 goto free_irqvs; 1555 } 1556 sc->irqvs[0].me = 0; 1557 1558 /* Do not allocate queue interrupts when in recovery mode */ 1559 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1560 return (0); 1561 1562 for (i = 0, vector = 1; i < vsi->num_rx_queues; i++, vector++) { 1563 struct ice_rx_queue *rxq = &vsi->rx_queues[i]; 1564 struct ice_tx_queue *txq = &vsi->tx_queues[i]; 1565 int rid = vector + 1; 1566 char irq_name[16]; 1567 1568 snprintf(irq_name, sizeof(irq_name), "rxq%d", i); 1569 err = iflib_irq_alloc_generic(ctx, &sc->irqvs[vector].irq, rid, 1570 IFLIB_INTR_RXTX, ice_msix_que, 1571 rxq, rxq->me, irq_name); 1572 if (err) { 1573 device_printf(sc->dev, 1574 "Failed to allocate q int %d err: %s\n", 1575 i, ice_err_str(err)); 1576 vector--; 1577 i--; 1578 goto fail; 1579 } 1580 sc->irqvs[vector].me = vector; 1581 rxq->irqv = &sc->irqvs[vector]; 1582 1583 bzero(irq_name, sizeof(irq_name)); 1584 1585 snprintf(irq_name, sizeof(irq_name), "txq%d", i); 1586 iflib_softirq_alloc_generic(ctx, &sc->irqvs[vector].irq, 1587 IFLIB_INTR_TX, txq, 1588 txq->me, irq_name); 1589 txq->irqv = &sc->irqvs[vector]; 1590 } 1591 1592 return (0); 1593 fail: 1594 for (; i >= 0; i--, vector--) 1595 iflib_irq_free(ctx, &sc->irqvs[vector].irq); 1596 iflib_irq_free(ctx, &sc->irqvs[0].irq); 1597 free_irqvs: 1598 free(sc->irqvs, M_ICE); 1599 sc->irqvs = NULL; 1600 return err; 1601 } 1602 1603 /** 1604 * ice_if_mtu_set - Set the device MTU 1605 * @ctx: iflib context structure 1606 * @mtu: the MTU requested 1607 * 1608 * Called by iflib to configure the device's Maximum Transmission Unit (MTU). 1609 * 1610 * @pre assumes the caller holds the iflib CTX lock 1611 */ 1612 static int 1613 ice_if_mtu_set(if_ctx_t ctx, uint32_t mtu) 1614 { 1615 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1616 1617 ASSERT_CTX_LOCKED(sc); 1618 1619 /* Do not support configuration when in recovery mode */ 1620 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1621 return (ENOSYS); 1622 1623 if (mtu < ICE_MIN_MTU || mtu > ICE_MAX_MTU) 1624 return (EINVAL); 1625 1626 sc->scctx->isc_max_frame_size = mtu + 1627 ETHER_HDR_LEN + ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN; 1628 1629 sc->pf_vsi.max_frame_size = sc->scctx->isc_max_frame_size; 1630 1631 return (0); 1632 } 1633 1634 /** 1635 * ice_if_intr_enable - Enable device interrupts 1636 * @ctx: iflib context structure 1637 * 1638 * Called by iflib to request enabling device interrupts. 1639 */ 1640 static void 1641 ice_if_intr_enable(if_ctx_t ctx) 1642 { 1643 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1644 struct ice_vsi *vsi = &sc->pf_vsi; 1645 struct ice_hw *hw = &sc->hw; 1646 1647 ASSERT_CTX_LOCKED(sc); 1648 1649 /* Enable ITR 0 */ 1650 ice_enable_intr(hw, sc->irqvs[0].me); 1651 1652 /* Do not enable queue interrupts in recovery mode */ 1653 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1654 return; 1655 1656 /* Enable all queue interrupts */ 1657 for (int i = 0; i < vsi->num_rx_queues; i++) 1658 ice_enable_intr(hw, vsi->rx_queues[i].irqv->me); 1659 } 1660 1661 /** 1662 * ice_if_intr_disable - Disable device interrupts 1663 * @ctx: iflib context structure 1664 * 1665 * Called by iflib to request disabling device interrupts. 1666 */ 1667 static void 1668 ice_if_intr_disable(if_ctx_t ctx) 1669 { 1670 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1671 struct ice_hw *hw = &sc->hw; 1672 unsigned int i; 1673 1674 ASSERT_CTX_LOCKED(sc); 1675 1676 /* IFDI_INTR_DISABLE may be called prior to interrupts actually being 1677 * assigned to queues. Instead of assuming that the interrupt 1678 * assignment in the rx_queues structure is valid, just disable all 1679 * possible interrupts 1680 * 1681 * Note that we choose not to disable ITR 0 because this handles the 1682 * AdminQ interrupts, and we want to keep processing these even when 1683 * the interface is offline. 1684 */ 1685 for (i = 1; i < hw->func_caps.common_cap.num_msix_vectors; i++) 1686 ice_disable_intr(hw, i); 1687 } 1688 1689 /** 1690 * ice_if_rx_queue_intr_enable - Enable a specific Rx queue interrupt 1691 * @ctx: iflib context structure 1692 * @rxqid: the Rx queue to enable 1693 * 1694 * Enable a specific Rx queue interrupt. 1695 * 1696 * This function is not protected by the iflib CTX lock. 1697 */ 1698 static int 1699 ice_if_rx_queue_intr_enable(if_ctx_t ctx, uint16_t rxqid) 1700 { 1701 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1702 struct ice_vsi *vsi = &sc->pf_vsi; 1703 struct ice_hw *hw = &sc->hw; 1704 1705 /* Do not enable queue interrupts in recovery mode */ 1706 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1707 return (ENOSYS); 1708 1709 ice_enable_intr(hw, vsi->rx_queues[rxqid].irqv->me); 1710 return (0); 1711 } 1712 1713 /** 1714 * ice_if_tx_queue_intr_enable - Enable a specific Tx queue interrupt 1715 * @ctx: iflib context structure 1716 * @txqid: the Tx queue to enable 1717 * 1718 * Enable a specific Tx queue interrupt. 1719 * 1720 * This function is not protected by the iflib CTX lock. 1721 */ 1722 static int 1723 ice_if_tx_queue_intr_enable(if_ctx_t ctx, uint16_t txqid) 1724 { 1725 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1726 struct ice_vsi *vsi = &sc->pf_vsi; 1727 struct ice_hw *hw = &sc->hw; 1728 1729 /* Do not enable queue interrupts in recovery mode */ 1730 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1731 return (ENOSYS); 1732 1733 ice_enable_intr(hw, vsi->tx_queues[txqid].irqv->me); 1734 return (0); 1735 } 1736 1737 /** 1738 * ice_if_promisc_set - Set device promiscuous mode 1739 * @ctx: iflib context structure 1740 * @flags: promiscuous flags to configure 1741 * 1742 * Called by iflib to configure device promiscuous mode. 1743 * 1744 * @remark Calls to this function will always overwrite the previous setting 1745 */ 1746 static int 1747 ice_if_promisc_set(if_ctx_t ctx, int flags) 1748 { 1749 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1750 struct ice_hw *hw = &sc->hw; 1751 device_t dev = sc->dev; 1752 enum ice_status status; 1753 bool promisc_enable = flags & IFF_PROMISC; 1754 bool multi_enable = flags & IFF_ALLMULTI; 1755 1756 /* Do not support configuration when in recovery mode */ 1757 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1758 return (ENOSYS); 1759 1760 if (multi_enable) 1761 return (EOPNOTSUPP); 1762 1763 if (promisc_enable) { 1764 status = ice_set_vsi_promisc(hw, sc->pf_vsi.idx, 1765 ICE_VSI_PROMISC_MASK, 0); 1766 if (status && status != ICE_ERR_ALREADY_EXISTS) { 1767 device_printf(dev, 1768 "Failed to enable promiscuous mode for PF VSI, err %s aq_err %s\n", 1769 ice_status_str(status), 1770 ice_aq_str(hw->adminq.sq_last_status)); 1771 return (EIO); 1772 } 1773 } else { 1774 status = ice_clear_vsi_promisc(hw, sc->pf_vsi.idx, 1775 ICE_VSI_PROMISC_MASK, 0); 1776 if (status) { 1777 device_printf(dev, 1778 "Failed to disable promiscuous mode for PF VSI, err %s aq_err %s\n", 1779 ice_status_str(status), 1780 ice_aq_str(hw->adminq.sq_last_status)); 1781 return (EIO); 1782 } 1783 } 1784 1785 return (0); 1786 } 1787 1788 /** 1789 * ice_if_media_change - Change device media 1790 * @ctx: device ctx structure 1791 * 1792 * Called by iflib when a media change is requested. This operation is not 1793 * supported by the hardware, so we just return an error code. 1794 */ 1795 static int 1796 ice_if_media_change(if_ctx_t ctx) 1797 { 1798 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1799 1800 device_printf(sc->dev, "Media change is not supported.\n"); 1801 return (ENODEV); 1802 } 1803 1804 /** 1805 * ice_if_media_status - Report current device media 1806 * @ctx: iflib context structure 1807 * @ifmr: ifmedia request structure to update 1808 * 1809 * Updates the provided ifmr with current device media status, including link 1810 * status and media type. 1811 */ 1812 static void 1813 ice_if_media_status(if_ctx_t ctx, struct ifmediareq *ifmr) 1814 { 1815 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1816 struct ice_link_status *li = &sc->hw.port_info->phy.link_info; 1817 1818 ifmr->ifm_status = IFM_AVALID; 1819 ifmr->ifm_active = IFM_ETHER; 1820 1821 /* Never report link up or media types when in recovery mode */ 1822 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1823 return; 1824 1825 if (!sc->link_up) 1826 return; 1827 1828 ifmr->ifm_status |= IFM_ACTIVE; 1829 ifmr->ifm_active |= IFM_FDX; 1830 1831 if (li->phy_type_low) 1832 ifmr->ifm_active |= ice_get_phy_type_low(li->phy_type_low); 1833 else if (li->phy_type_high) 1834 ifmr->ifm_active |= ice_get_phy_type_high(li->phy_type_high); 1835 else 1836 ifmr->ifm_active |= IFM_UNKNOWN; 1837 1838 /* Report flow control status as well */ 1839 if (li->an_info & ICE_AQ_LINK_PAUSE_TX) 1840 ifmr->ifm_active |= IFM_ETH_TXPAUSE; 1841 if (li->an_info & ICE_AQ_LINK_PAUSE_RX) 1842 ifmr->ifm_active |= IFM_ETH_RXPAUSE; 1843 } 1844 1845 /** 1846 * ice_init_tx_tracking - Initialize Tx queue software tracking values 1847 * @vsi: the VSI to initialize 1848 * 1849 * Initialize Tx queue software tracking values, including the Report Status 1850 * queue, and related software tracking values. 1851 */ 1852 static void 1853 ice_init_tx_tracking(struct ice_vsi *vsi) 1854 { 1855 struct ice_tx_queue *txq; 1856 size_t j; 1857 int i; 1858 1859 for (i = 0, txq = vsi->tx_queues; i < vsi->num_tx_queues; i++, txq++) { 1860 1861 txq->tx_rs_cidx = txq->tx_rs_pidx = 0; 1862 1863 /* Initialize the last processed descriptor to be the end of 1864 * the ring, rather than the start, so that we avoid an 1865 * off-by-one error in ice_ift_txd_credits_update for the 1866 * first packet. 1867 */ 1868 txq->tx_cidx_processed = txq->desc_count - 1; 1869 1870 for (j = 0; j < txq->desc_count; j++) 1871 txq->tx_rsq[j] = QIDX_INVALID; 1872 } 1873 } 1874 1875 /** 1876 * ice_update_rx_mbuf_sz - Update the Rx buffer size for all queues 1877 * @sc: the device softc 1878 * 1879 * Called to update the Rx queue mbuf_sz parameter for configuring the receive 1880 * buffer sizes when programming hardware. 1881 */ 1882 static void 1883 ice_update_rx_mbuf_sz(struct ice_softc *sc) 1884 { 1885 uint32_t mbuf_sz = iflib_get_rx_mbuf_sz(sc->ctx); 1886 struct ice_vsi *vsi = &sc->pf_vsi; 1887 1888 MPASS(mbuf_sz <= UINT16_MAX); 1889 vsi->mbuf_sz = mbuf_sz; 1890 } 1891 1892 /** 1893 * ice_if_init - Initialize the device 1894 * @ctx: iflib ctx structure 1895 * 1896 * Called by iflib to bring the device up, i.e. ifconfig ice0 up. Initializes 1897 * device filters and prepares the Tx and Rx engines. 1898 * 1899 * @pre assumes the caller holds the iflib CTX lock 1900 */ 1901 static void 1902 ice_if_init(if_ctx_t ctx) 1903 { 1904 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 1905 device_t dev = sc->dev; 1906 int err; 1907 1908 ASSERT_CTX_LOCKED(sc); 1909 1910 /* 1911 * We've seen an issue with 11.3/12.1 where sideband routines are 1912 * called after detach is called. This would call routines after 1913 * if_stop, causing issues with the teardown process. This has 1914 * seemingly been fixed in STABLE snapshots, but it seems like a 1915 * good idea to have this guard here regardless. 1916 */ 1917 if (ice_driver_is_detaching(sc)) 1918 return; 1919 1920 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 1921 return; 1922 1923 if (ice_test_state(&sc->state, ICE_STATE_RESET_FAILED)) { 1924 device_printf(sc->dev, "request to start interface cannot be completed as the device failed to reset\n"); 1925 return; 1926 } 1927 1928 if (ice_test_state(&sc->state, ICE_STATE_PREPARED_FOR_RESET)) { 1929 device_printf(sc->dev, "request to start interface while device is prepared for impending reset\n"); 1930 return; 1931 } 1932 1933 ice_update_rx_mbuf_sz(sc); 1934 1935 /* Update the MAC address... User might use a LAA */ 1936 err = ice_update_laa_mac(sc); 1937 if (err) { 1938 device_printf(dev, 1939 "LAA address change failed, err %s\n", 1940 ice_err_str(err)); 1941 return; 1942 } 1943 1944 /* Initialize software Tx tracking values */ 1945 ice_init_tx_tracking(&sc->pf_vsi); 1946 1947 err = ice_cfg_vsi_for_tx(&sc->pf_vsi); 1948 if (err) { 1949 device_printf(dev, 1950 "Unable to configure the main VSI for Tx: %s\n", 1951 ice_err_str(err)); 1952 return; 1953 } 1954 1955 err = ice_cfg_vsi_for_rx(&sc->pf_vsi); 1956 if (err) { 1957 device_printf(dev, 1958 "Unable to configure the main VSI for Rx: %s\n", 1959 ice_err_str(err)); 1960 goto err_cleanup_tx; 1961 } 1962 1963 err = ice_control_all_rx_queues(&sc->pf_vsi, true); 1964 if (err) { 1965 device_printf(dev, 1966 "Unable to enable Rx rings for transmit: %s\n", 1967 ice_err_str(err)); 1968 goto err_cleanup_tx; 1969 } 1970 1971 err = ice_cfg_pf_default_mac_filters(sc); 1972 if (err) { 1973 device_printf(dev, 1974 "Unable to configure default MAC filters: %s\n", 1975 ice_err_str(err)); 1976 goto err_stop_rx; 1977 } 1978 1979 /* We use software interrupts for Tx, so we only program the hardware 1980 * interrupts for Rx. 1981 */ 1982 ice_configure_all_rxq_interrupts(&sc->pf_vsi); 1983 ice_configure_rx_itr(&sc->pf_vsi); 1984 1985 /* Configure promiscuous mode */ 1986 ice_if_promisc_set(ctx, if_getflags(sc->ifp)); 1987 1988 ice_rdma_pf_init(sc); 1989 1990 ice_set_state(&sc->state, ICE_STATE_DRIVER_INITIALIZED); 1991 return; 1992 1993 err_stop_rx: 1994 ice_control_all_rx_queues(&sc->pf_vsi, false); 1995 err_cleanup_tx: 1996 ice_vsi_disable_tx(&sc->pf_vsi); 1997 } 1998 1999 /** 2000 * ice_poll_for_media_avail - Re-enable link if media is detected 2001 * @sc: device private structure 2002 * 2003 * Intended to be called from the driver's timer function, this function 2004 * sends the Get Link Status AQ command and re-enables HW link if the 2005 * command says that media is available. 2006 * 2007 * If the driver doesn't have the "NO_MEDIA" state set, then this does nothing, 2008 * since media removal events are supposed to be sent to the driver through 2009 * a link status event. 2010 */ 2011 static void 2012 ice_poll_for_media_avail(struct ice_softc *sc) 2013 { 2014 struct ice_hw *hw = &sc->hw; 2015 struct ice_port_info *pi = hw->port_info; 2016 2017 if (ice_test_state(&sc->state, ICE_STATE_NO_MEDIA)) { 2018 pi->phy.get_link_info = true; 2019 ice_get_link_status(pi, &sc->link_up); 2020 2021 if (pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE) { 2022 enum ice_status status; 2023 2024 /* Re-enable link and re-apply user link settings */ 2025 ice_apply_saved_phy_cfg(sc, ICE_APPLY_LS_FEC_FC); 2026 2027 /* Update the OS about changes in media capability */ 2028 status = ice_add_media_types(sc, sc->media); 2029 if (status) 2030 device_printf(sc->dev, "Error adding device media types: %s aq_err %s\n", 2031 ice_status_str(status), 2032 ice_aq_str(hw->adminq.sq_last_status)); 2033 2034 ice_clear_state(&sc->state, ICE_STATE_NO_MEDIA); 2035 } 2036 } 2037 } 2038 2039 /** 2040 * ice_if_timer - called by iflib periodically 2041 * @ctx: iflib ctx structure 2042 * @qid: the queue this timer was called for 2043 * 2044 * This callback is triggered by iflib periodically. We use it to update the 2045 * hw statistics. 2046 * 2047 * @remark this function is not protected by the iflib CTX lock. 2048 */ 2049 static void 2050 ice_if_timer(if_ctx_t ctx, uint16_t qid) 2051 { 2052 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2053 uint64_t prev_link_xoff_rx = sc->stats.cur.link_xoff_rx; 2054 2055 if (qid != 0) 2056 return; 2057 2058 /* Do not attempt to update stats when in recovery mode */ 2059 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 2060 return; 2061 2062 /* Update device statistics */ 2063 ice_update_pf_stats(sc); 2064 2065 /* 2066 * For proper watchdog management, the iflib stack needs to know if 2067 * we've been paused during the last interval. Check if the 2068 * link_xoff_rx stat changed, and set the isc_pause_frames, if so. 2069 */ 2070 if (sc->stats.cur.link_xoff_rx != prev_link_xoff_rx) 2071 sc->scctx->isc_pause_frames = 1; 2072 2073 /* Update the primary VSI stats */ 2074 ice_update_vsi_hw_stats(&sc->pf_vsi); 2075 } 2076 2077 /** 2078 * ice_admin_timer - called periodically to trigger the admin task 2079 * @arg: callout(9) argument pointing to the device private softc structure 2080 * 2081 * Timer function used as part of a callout(9) timer that will periodically 2082 * trigger the admin task, even when the interface is down. 2083 * 2084 * @remark this function is not called by iflib and is not protected by the 2085 * iflib CTX lock. 2086 * 2087 * @remark because this is a callout function, it cannot sleep and should not 2088 * attempt taking the iflib CTX lock. 2089 */ 2090 static void 2091 ice_admin_timer(void *arg) 2092 { 2093 struct ice_softc *sc = (struct ice_softc *)arg; 2094 2095 /* 2096 * There is a point where callout routines are no longer 2097 * cancelable. So there exists a window of time where the 2098 * driver enters detach() and tries to cancel the callout, but the 2099 * callout routine has passed the cancellation point. The detach() 2100 * routine is unaware of this and tries to free resources that the 2101 * callout routine needs. So we check for the detach state flag to 2102 * at least shrink the window of opportunity. 2103 */ 2104 if (ice_driver_is_detaching(sc)) 2105 return; 2106 2107 /* Fire off the admin task */ 2108 iflib_admin_intr_deferred(sc->ctx); 2109 2110 /* Reschedule the admin timer */ 2111 callout_schedule(&sc->admin_timer, hz/2); 2112 } 2113 2114 /** 2115 * ice_transition_recovery_mode - Transition to recovery mode 2116 * @sc: the device private softc 2117 * 2118 * Called when the driver detects that the firmware has entered recovery mode 2119 * at run time. 2120 */ 2121 static void 2122 ice_transition_recovery_mode(struct ice_softc *sc) 2123 { 2124 struct ice_vsi *vsi = &sc->pf_vsi; 2125 int i; 2126 2127 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"); 2128 2129 /* Tell the stack that the link has gone down */ 2130 iflib_link_state_change(sc->ctx, LINK_STATE_DOWN, 0); 2131 2132 /* Request that the device be re-initialized */ 2133 ice_request_stack_reinit(sc); 2134 2135 ice_rdma_pf_detach(sc); 2136 ice_clear_bit(ICE_FEATURE_RDMA, sc->feat_cap); 2137 2138 ice_clear_bit(ICE_FEATURE_SRIOV, sc->feat_en); 2139 ice_clear_bit(ICE_FEATURE_SRIOV, sc->feat_cap); 2140 2141 ice_vsi_del_txqs_ctx(vsi); 2142 ice_vsi_del_rxqs_ctx(vsi); 2143 2144 for (i = 0; i < sc->num_available_vsi; i++) { 2145 if (sc->all_vsi[i]) 2146 ice_release_vsi(sc->all_vsi[i]); 2147 } 2148 sc->num_available_vsi = 0; 2149 2150 if (sc->all_vsi) { 2151 free(sc->all_vsi, M_ICE); 2152 sc->all_vsi = NULL; 2153 } 2154 2155 /* Destroy the interrupt manager */ 2156 ice_resmgr_destroy(&sc->imgr); 2157 /* Destroy the queue managers */ 2158 ice_resmgr_destroy(&sc->tx_qmgr); 2159 ice_resmgr_destroy(&sc->rx_qmgr); 2160 2161 ice_deinit_hw(&sc->hw); 2162 } 2163 2164 /** 2165 * ice_transition_safe_mode - Transition to safe mode 2166 * @sc: the device private softc 2167 * 2168 * Called when the driver attempts to reload the DDP package during a device 2169 * reset, and the new download fails. If so, we must transition to safe mode 2170 * at run time. 2171 * 2172 * @remark although safe mode normally allocates only a single queue, we can't 2173 * change the number of queues dynamically when using iflib. Due to this, we 2174 * do not attempt to reduce the number of queues. 2175 */ 2176 static void 2177 ice_transition_safe_mode(struct ice_softc *sc) 2178 { 2179 /* Indicate that we are in Safe mode */ 2180 ice_set_bit(ICE_FEATURE_SAFE_MODE, sc->feat_cap); 2181 ice_set_bit(ICE_FEATURE_SAFE_MODE, sc->feat_en); 2182 2183 ice_rdma_pf_detach(sc); 2184 ice_clear_bit(ICE_FEATURE_RDMA, sc->feat_cap); 2185 2186 ice_clear_bit(ICE_FEATURE_SRIOV, sc->feat_en); 2187 ice_clear_bit(ICE_FEATURE_SRIOV, sc->feat_cap); 2188 2189 ice_clear_bit(ICE_FEATURE_RSS, sc->feat_cap); 2190 ice_clear_bit(ICE_FEATURE_RSS, sc->feat_en); 2191 } 2192 2193 /** 2194 * ice_if_update_admin_status - update admin status 2195 * @ctx: iflib ctx structure 2196 * 2197 * Called by iflib to update the admin status. For our purposes, this means 2198 * check the adminq, and update the link status. It's ultimately triggered by 2199 * our admin interrupt, or by the ice_if_timer periodically. 2200 * 2201 * @pre assumes the caller holds the iflib CTX lock 2202 */ 2203 static void 2204 ice_if_update_admin_status(if_ctx_t ctx) 2205 { 2206 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2207 enum ice_fw_modes fw_mode; 2208 bool reschedule = false; 2209 u16 pending = 0; 2210 2211 ASSERT_CTX_LOCKED(sc); 2212 2213 /* Check if the firmware entered recovery mode at run time */ 2214 fw_mode = ice_get_fw_mode(&sc->hw); 2215 if (fw_mode == ICE_FW_MODE_REC) { 2216 if (!ice_testandset_state(&sc->state, ICE_STATE_RECOVERY_MODE)) { 2217 /* If we just entered recovery mode, log a warning to 2218 * the system administrator and deinit driver state 2219 * that is no longer functional. 2220 */ 2221 ice_transition_recovery_mode(sc); 2222 } 2223 } else if (fw_mode == ICE_FW_MODE_ROLLBACK) { 2224 if (!ice_testandset_state(&sc->state, ICE_STATE_ROLLBACK_MODE)) { 2225 /* Rollback mode isn't fatal, but we don't want to 2226 * repeatedly post a message about it. 2227 */ 2228 ice_print_rollback_msg(&sc->hw); 2229 } 2230 } 2231 2232 /* Handle global reset events */ 2233 ice_handle_reset_event(sc); 2234 2235 /* Handle PF reset requests */ 2236 ice_handle_pf_reset_request(sc); 2237 2238 /* Handle MDD events */ 2239 ice_handle_mdd_event(sc); 2240 2241 if (ice_test_state(&sc->state, ICE_STATE_RESET_FAILED) || 2242 ice_test_state(&sc->state, ICE_STATE_PREPARED_FOR_RESET) || 2243 ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) { 2244 /* 2245 * If we know the control queues are disabled, skip processing 2246 * the control queues entirely. 2247 */ 2248 ; 2249 } else if (ice_testandclear_state(&sc->state, ICE_STATE_CONTROLQ_EVENT_PENDING)) { 2250 ice_process_ctrlq(sc, ICE_CTL_Q_ADMIN, &pending); 2251 if (pending > 0) 2252 reschedule = true; 2253 2254 ice_process_ctrlq(sc, ICE_CTL_Q_MAILBOX, &pending); 2255 if (pending > 0) 2256 reschedule = true; 2257 } 2258 2259 /* Poll for link up */ 2260 ice_poll_for_media_avail(sc); 2261 2262 /* Check and update link status */ 2263 ice_update_link_status(sc, false); 2264 2265 /* 2266 * If there are still messages to process, we need to reschedule 2267 * ourselves. Otherwise, we can just re-enable the interrupt. We'll be 2268 * woken up at the next interrupt or timer event. 2269 */ 2270 if (reschedule) { 2271 ice_set_state(&sc->state, ICE_STATE_CONTROLQ_EVENT_PENDING); 2272 iflib_admin_intr_deferred(ctx); 2273 } else { 2274 ice_enable_intr(&sc->hw, sc->irqvs[0].me); 2275 } 2276 } 2277 2278 /** 2279 * ice_prepare_for_reset - Prepare device for an impending reset 2280 * @sc: The device private softc 2281 * 2282 * Prepare the driver for an impending reset, shutting down VSIs, clearing the 2283 * scheduler setup, and shutting down controlqs. Uses the 2284 * ICE_STATE_PREPARED_FOR_RESET to indicate whether we've already prepared the 2285 * driver for reset or not. 2286 */ 2287 static void 2288 ice_prepare_for_reset(struct ice_softc *sc) 2289 { 2290 struct ice_hw *hw = &sc->hw; 2291 2292 /* If we're already prepared, there's nothing to do */ 2293 if (ice_testandset_state(&sc->state, ICE_STATE_PREPARED_FOR_RESET)) 2294 return; 2295 2296 log(LOG_INFO, "%s: preparing to reset device logic\n", if_name(sc->ifp)); 2297 2298 /* In recovery mode, hardware is not initialized */ 2299 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 2300 return; 2301 2302 /* stop the RDMA client */ 2303 ice_rdma_pf_stop(sc); 2304 2305 /* Release the main PF VSI queue mappings */ 2306 ice_resmgr_release_map(&sc->tx_qmgr, sc->pf_vsi.tx_qmap, 2307 sc->pf_vsi.num_tx_queues); 2308 ice_resmgr_release_map(&sc->rx_qmgr, sc->pf_vsi.rx_qmap, 2309 sc->pf_vsi.num_rx_queues); 2310 2311 ice_clear_hw_tbls(hw); 2312 2313 if (hw->port_info) 2314 ice_sched_clear_port(hw->port_info); 2315 2316 ice_shutdown_all_ctrlq(hw, false); 2317 } 2318 2319 /** 2320 * ice_rebuild_pf_vsi_qmap - Rebuild the main PF VSI queue mapping 2321 * @sc: the device softc pointer 2322 * 2323 * Loops over the Tx and Rx queues for the main PF VSI and reassigns the queue 2324 * mapping after a reset occurred. 2325 */ 2326 static int 2327 ice_rebuild_pf_vsi_qmap(struct ice_softc *sc) 2328 { 2329 struct ice_vsi *vsi = &sc->pf_vsi; 2330 struct ice_tx_queue *txq; 2331 struct ice_rx_queue *rxq; 2332 int err, i; 2333 2334 /* Re-assign Tx queues from PF space to the main VSI */ 2335 err = ice_resmgr_assign_contiguous(&sc->tx_qmgr, vsi->tx_qmap, 2336 vsi->num_tx_queues); 2337 if (err) { 2338 device_printf(sc->dev, "Unable to re-assign PF Tx queues: %s\n", 2339 ice_err_str(err)); 2340 return (err); 2341 } 2342 2343 /* Re-assign Rx queues from PF space to this VSI */ 2344 err = ice_resmgr_assign_contiguous(&sc->rx_qmgr, vsi->rx_qmap, 2345 vsi->num_rx_queues); 2346 if (err) { 2347 device_printf(sc->dev, "Unable to re-assign PF Rx queues: %s\n", 2348 ice_err_str(err)); 2349 goto err_release_tx_queues; 2350 } 2351 2352 vsi->qmap_type = ICE_RESMGR_ALLOC_CONTIGUOUS; 2353 2354 /* Re-assign Tx queue tail pointers */ 2355 for (i = 0, txq = vsi->tx_queues; i < vsi->num_tx_queues; i++, txq++) 2356 txq->tail = QTX_COMM_DBELL(vsi->tx_qmap[i]); 2357 2358 /* Re-assign Rx queue tail pointers */ 2359 for (i = 0, rxq = vsi->rx_queues; i < vsi->num_rx_queues; i++, rxq++) 2360 rxq->tail = QRX_TAIL(vsi->rx_qmap[i]); 2361 2362 return (0); 2363 2364 err_release_tx_queues: 2365 ice_resmgr_release_map(&sc->tx_qmgr, sc->pf_vsi.tx_qmap, 2366 sc->pf_vsi.num_tx_queues); 2367 2368 return (err); 2369 } 2370 2371 /* determine if the iflib context is active */ 2372 #define CTX_ACTIVE(ctx) ((if_getdrvflags(iflib_get_ifp(ctx)) & IFF_DRV_RUNNING)) 2373 2374 /** 2375 * ice_rebuild_recovery_mode - Rebuild driver state while in recovery mode 2376 * @sc: The device private softc 2377 * 2378 * Handle a driver rebuild while in recovery mode. This will only rebuild the 2379 * limited functionality supported while in recovery mode. 2380 */ 2381 static void 2382 ice_rebuild_recovery_mode(struct ice_softc *sc) 2383 { 2384 device_t dev = sc->dev; 2385 2386 /* enable PCIe bus master */ 2387 pci_enable_busmaster(dev); 2388 2389 /* Configure interrupt causes for the administrative interrupt */ 2390 ice_configure_misc_interrupts(sc); 2391 2392 /* Enable ITR 0 right away, so that we can handle admin interrupts */ 2393 ice_enable_intr(&sc->hw, sc->irqvs[0].me); 2394 2395 /* Now that the rebuild is finished, we're no longer prepared to reset */ 2396 ice_clear_state(&sc->state, ICE_STATE_PREPARED_FOR_RESET); 2397 2398 log(LOG_INFO, "%s: device rebuild successful\n", if_name(sc->ifp)); 2399 2400 /* In order to completely restore device functionality, the iflib core 2401 * needs to be reset. We need to request an iflib reset. Additionally, 2402 * because the state of IFC_DO_RESET is cached within task_fn_admin in 2403 * the iflib core, we also want re-run the admin task so that iflib 2404 * resets immediately instead of waiting for the next interrupt. 2405 */ 2406 ice_request_stack_reinit(sc); 2407 2408 return; 2409 } 2410 2411 /** 2412 * ice_rebuild - Rebuild driver state post reset 2413 * @sc: The device private softc 2414 * 2415 * Restore driver state after a reset occurred. Restart the controlqs, setup 2416 * the hardware port, and re-enable the VSIs. 2417 */ 2418 static void 2419 ice_rebuild(struct ice_softc *sc) 2420 { 2421 struct ice_hw *hw = &sc->hw; 2422 device_t dev = sc->dev; 2423 enum ice_ddp_state pkg_state; 2424 enum ice_status status; 2425 int err; 2426 2427 sc->rebuild_ticks = ticks; 2428 2429 /* If we're rebuilding, then a reset has succeeded. */ 2430 ice_clear_state(&sc->state, ICE_STATE_RESET_FAILED); 2431 2432 /* 2433 * If the firmware is in recovery mode, only restore the limited 2434 * functionality supported by recovery mode. 2435 */ 2436 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) { 2437 ice_rebuild_recovery_mode(sc); 2438 return; 2439 } 2440 2441 /* enable PCIe bus master */ 2442 pci_enable_busmaster(dev); 2443 2444 status = ice_init_all_ctrlq(hw); 2445 if (status) { 2446 device_printf(dev, "failed to re-init controlqs, err %s\n", 2447 ice_status_str(status)); 2448 goto err_shutdown_ctrlq; 2449 } 2450 2451 /* Query the allocated resources for Tx scheduler */ 2452 status = ice_sched_query_res_alloc(hw); 2453 if (status) { 2454 device_printf(dev, 2455 "Failed to query scheduler resources, err %s aq_err %s\n", 2456 ice_status_str(status), 2457 ice_aq_str(hw->adminq.sq_last_status)); 2458 goto err_shutdown_ctrlq; 2459 } 2460 2461 /* Re-enable FW logging. Keep going even if this fails */ 2462 status = ice_fwlog_set(hw, &hw->fwlog_cfg); 2463 if (!status) { 2464 /* 2465 * We should have the most updated cached copy of the 2466 * configuration, regardless of whether we're rebuilding 2467 * or not. So we'll simply check to see if logging was 2468 * enabled pre-rebuild. 2469 */ 2470 if (hw->fwlog_cfg.options & ICE_FWLOG_OPTION_IS_REGISTERED) { 2471 status = ice_fwlog_register(hw); 2472 if (status) 2473 device_printf(dev, "failed to re-register fw logging, err %s aq_err %s\n", 2474 ice_status_str(status), 2475 ice_aq_str(hw->adminq.sq_last_status)); 2476 } 2477 } else 2478 device_printf(dev, "failed to rebuild fw logging configuration, err %s aq_err %s\n", 2479 ice_status_str(status), 2480 ice_aq_str(hw->adminq.sq_last_status)); 2481 2482 err = ice_send_version(sc); 2483 if (err) 2484 goto err_shutdown_ctrlq; 2485 2486 err = ice_init_link_events(sc); 2487 if (err) { 2488 device_printf(dev, "ice_init_link_events failed: %s\n", 2489 ice_err_str(err)); 2490 goto err_shutdown_ctrlq; 2491 } 2492 2493 status = ice_clear_pf_cfg(hw); 2494 if (status) { 2495 device_printf(dev, "failed to clear PF configuration, err %s\n", 2496 ice_status_str(status)); 2497 goto err_shutdown_ctrlq; 2498 } 2499 2500 ice_clear_pxe_mode(hw); 2501 2502 status = ice_get_caps(hw); 2503 if (status) { 2504 device_printf(dev, "failed to get capabilities, err %s\n", 2505 ice_status_str(status)); 2506 goto err_shutdown_ctrlq; 2507 } 2508 2509 status = ice_sched_init_port(hw->port_info); 2510 if (status) { 2511 device_printf(dev, "failed to initialize port, err %s\n", 2512 ice_status_str(status)); 2513 goto err_sched_cleanup; 2514 } 2515 2516 /* If we previously loaded the package, it needs to be reloaded now */ 2517 if (!ice_is_bit_set(sc->feat_en, ICE_FEATURE_SAFE_MODE)) { 2518 pkg_state = ice_init_pkg(hw, hw->pkg_copy, hw->pkg_size); 2519 if (!ice_is_init_pkg_successful(pkg_state)) { 2520 ice_log_pkg_init(sc, pkg_state); 2521 ice_transition_safe_mode(sc); 2522 } 2523 } 2524 2525 ice_reset_pf_stats(sc); 2526 2527 err = ice_rebuild_pf_vsi_qmap(sc); 2528 if (err) { 2529 device_printf(sc->dev, "Unable to re-assign main VSI queues, err %s\n", 2530 ice_err_str(err)); 2531 goto err_sched_cleanup; 2532 } 2533 err = ice_initialize_vsi(&sc->pf_vsi); 2534 if (err) { 2535 device_printf(sc->dev, "Unable to re-initialize Main VSI, err %s\n", 2536 ice_err_str(err)); 2537 goto err_release_queue_allocations; 2538 } 2539 2540 /* Replay all VSI configuration */ 2541 err = ice_replay_all_vsi_cfg(sc); 2542 if (err) 2543 goto err_deinit_pf_vsi; 2544 2545 /* Re-enable FW health event reporting */ 2546 ice_init_health_events(sc); 2547 2548 /* Reconfigure the main PF VSI for RSS */ 2549 err = ice_config_rss(&sc->pf_vsi); 2550 if (err) { 2551 device_printf(sc->dev, 2552 "Unable to reconfigure RSS for the main VSI, err %s\n", 2553 ice_err_str(err)); 2554 goto err_deinit_pf_vsi; 2555 } 2556 2557 /* Refresh link status */ 2558 ice_clear_state(&sc->state, ICE_STATE_LINK_STATUS_REPORTED); 2559 sc->hw.port_info->phy.get_link_info = true; 2560 ice_get_link_status(sc->hw.port_info, &sc->link_up); 2561 ice_update_link_status(sc, true); 2562 2563 /* RDMA interface will be restarted by the stack re-init */ 2564 2565 /* Configure interrupt causes for the administrative interrupt */ 2566 ice_configure_misc_interrupts(sc); 2567 2568 /* Enable ITR 0 right away, so that we can handle admin interrupts */ 2569 ice_enable_intr(&sc->hw, sc->irqvs[0].me); 2570 2571 /* Now that the rebuild is finished, we're no longer prepared to reset */ 2572 ice_clear_state(&sc->state, ICE_STATE_PREPARED_FOR_RESET); 2573 2574 log(LOG_INFO, "%s: device rebuild successful\n", if_name(sc->ifp)); 2575 2576 /* In order to completely restore device functionality, the iflib core 2577 * needs to be reset. We need to request an iflib reset. Additionally, 2578 * because the state of IFC_DO_RESET is cached within task_fn_admin in 2579 * the iflib core, we also want re-run the admin task so that iflib 2580 * resets immediately instead of waiting for the next interrupt. 2581 */ 2582 ice_request_stack_reinit(sc); 2583 2584 return; 2585 2586 err_deinit_pf_vsi: 2587 ice_deinit_vsi(&sc->pf_vsi); 2588 err_release_queue_allocations: 2589 ice_resmgr_release_map(&sc->tx_qmgr, sc->pf_vsi.tx_qmap, 2590 sc->pf_vsi.num_tx_queues); 2591 ice_resmgr_release_map(&sc->rx_qmgr, sc->pf_vsi.rx_qmap, 2592 sc->pf_vsi.num_rx_queues); 2593 err_sched_cleanup: 2594 ice_sched_cleanup_all(hw); 2595 err_shutdown_ctrlq: 2596 ice_shutdown_all_ctrlq(hw, false); 2597 ice_clear_state(&sc->state, ICE_STATE_PREPARED_FOR_RESET); 2598 ice_set_state(&sc->state, ICE_STATE_RESET_FAILED); 2599 device_printf(dev, "Driver rebuild failed, please reload the device driver\n"); 2600 } 2601 2602 /** 2603 * ice_handle_reset_event - Handle reset events triggered by OICR 2604 * @sc: The device private softc 2605 * 2606 * Handle reset events triggered by an OICR notification. This includes CORER, 2607 * GLOBR, and EMPR resets triggered by software on this or any other PF or by 2608 * firmware. 2609 * 2610 * @pre assumes the iflib context lock is held, and will unlock it while 2611 * waiting for the hardware to finish reset. 2612 */ 2613 static void 2614 ice_handle_reset_event(struct ice_softc *sc) 2615 { 2616 struct ice_hw *hw = &sc->hw; 2617 enum ice_status status; 2618 device_t dev = sc->dev; 2619 2620 /* When a CORER, GLOBR, or EMPR is about to happen, the hardware will 2621 * trigger an OICR interrupt. Our OICR handler will determine when 2622 * this occurs and set the ICE_STATE_RESET_OICR_RECV bit as 2623 * appropriate. 2624 */ 2625 if (!ice_testandclear_state(&sc->state, ICE_STATE_RESET_OICR_RECV)) 2626 return; 2627 2628 ice_prepare_for_reset(sc); 2629 2630 /* 2631 * Release the iflib context lock and wait for the device to finish 2632 * resetting. 2633 */ 2634 IFLIB_CTX_UNLOCK(sc); 2635 status = ice_check_reset(hw); 2636 IFLIB_CTX_LOCK(sc); 2637 if (status) { 2638 device_printf(dev, "Device never came out of reset, err %s\n", 2639 ice_status_str(status)); 2640 ice_set_state(&sc->state, ICE_STATE_RESET_FAILED); 2641 return; 2642 } 2643 2644 /* We're done with the reset, so we can rebuild driver state */ 2645 sc->hw.reset_ongoing = false; 2646 ice_rebuild(sc); 2647 2648 /* In the unlikely event that a PF reset request occurs at the same 2649 * time as a global reset, clear the request now. This avoids 2650 * resetting a second time right after we reset due to a global event. 2651 */ 2652 if (ice_testandclear_state(&sc->state, ICE_STATE_RESET_PFR_REQ)) 2653 device_printf(dev, "Ignoring PFR request that occurred while a reset was ongoing\n"); 2654 } 2655 2656 /** 2657 * ice_handle_pf_reset_request - Initiate PF reset requested by software 2658 * @sc: The device private softc 2659 * 2660 * Initiate a PF reset requested by software. We handle this in the admin task 2661 * so that only one thread actually handles driver preparation and cleanup, 2662 * rather than having multiple threads possibly attempt to run this code 2663 * simultaneously. 2664 * 2665 * @pre assumes the iflib context lock is held and will unlock it while 2666 * waiting for the PF reset to complete. 2667 */ 2668 static void 2669 ice_handle_pf_reset_request(struct ice_softc *sc) 2670 { 2671 struct ice_hw *hw = &sc->hw; 2672 enum ice_status status; 2673 2674 /* Check for PF reset requests */ 2675 if (!ice_testandclear_state(&sc->state, ICE_STATE_RESET_PFR_REQ)) 2676 return; 2677 2678 /* Make sure we're prepared for reset */ 2679 ice_prepare_for_reset(sc); 2680 2681 /* 2682 * Release the iflib context lock and wait for the device to finish 2683 * resetting. 2684 */ 2685 IFLIB_CTX_UNLOCK(sc); 2686 status = ice_reset(hw, ICE_RESET_PFR); 2687 IFLIB_CTX_LOCK(sc); 2688 if (status) { 2689 device_printf(sc->dev, "device PF reset failed, err %s\n", 2690 ice_status_str(status)); 2691 ice_set_state(&sc->state, ICE_STATE_RESET_FAILED); 2692 return; 2693 } 2694 2695 sc->soft_stats.pfr_count++; 2696 ice_rebuild(sc); 2697 } 2698 2699 /** 2700 * ice_init_device_features - Init device driver features 2701 * @sc: driver softc structure 2702 * 2703 * @pre assumes that the function capabilities bits have been set up by 2704 * ice_init_hw(). 2705 */ 2706 static void 2707 ice_init_device_features(struct ice_softc *sc) 2708 { 2709 /* Set capabilities that all devices support */ 2710 ice_set_bit(ICE_FEATURE_SRIOV, sc->feat_cap); 2711 ice_set_bit(ICE_FEATURE_RSS, sc->feat_cap); 2712 ice_set_bit(ICE_FEATURE_RDMA, sc->feat_cap); 2713 ice_set_bit(ICE_FEATURE_LENIENT_LINK_MODE, sc->feat_cap); 2714 ice_set_bit(ICE_FEATURE_LINK_MGMT_VER_1, sc->feat_cap); 2715 ice_set_bit(ICE_FEATURE_LINK_MGMT_VER_2, sc->feat_cap); 2716 ice_set_bit(ICE_FEATURE_HEALTH_STATUS, sc->feat_cap); 2717 ice_set_bit(ICE_FEATURE_FW_LOGGING, sc->feat_cap); 2718 ice_set_bit(ICE_FEATURE_HAS_PBA, sc->feat_cap); 2719 ice_set_bit(ICE_FEATURE_DCB, sc->feat_cap); 2720 ice_set_bit(ICE_FEATURE_TX_BALANCE, sc->feat_cap); 2721 2722 /* Disable features due to hardware limitations... */ 2723 if (!sc->hw.func_caps.common_cap.rss_table_size) 2724 ice_clear_bit(ICE_FEATURE_RSS, sc->feat_cap); 2725 if (!sc->hw.func_caps.common_cap.iwarp || !ice_enable_irdma) 2726 ice_clear_bit(ICE_FEATURE_RDMA, sc->feat_cap); 2727 if (!sc->hw.func_caps.common_cap.dcb) 2728 ice_clear_bit(ICE_FEATURE_DCB, sc->feat_cap); 2729 /* Disable features due to firmware limitations... */ 2730 if (!ice_is_fw_health_report_supported(&sc->hw)) 2731 ice_clear_bit(ICE_FEATURE_HEALTH_STATUS, sc->feat_cap); 2732 if (!ice_fwlog_supported(&sc->hw)) 2733 ice_clear_bit(ICE_FEATURE_FW_LOGGING, sc->feat_cap); 2734 if (sc->hw.fwlog_cfg.options & ICE_FWLOG_OPTION_IS_REGISTERED) { 2735 if (ice_is_bit_set(sc->feat_cap, ICE_FEATURE_FW_LOGGING)) 2736 ice_set_bit(ICE_FEATURE_FW_LOGGING, sc->feat_en); 2737 else 2738 ice_fwlog_unregister(&sc->hw); 2739 } 2740 2741 /* Disable capabilities not supported by the OS */ 2742 ice_disable_unsupported_features(sc->feat_cap); 2743 2744 /* RSS is always enabled for iflib */ 2745 if (ice_is_bit_set(sc->feat_cap, ICE_FEATURE_RSS)) 2746 ice_set_bit(ICE_FEATURE_RSS, sc->feat_en); 2747 2748 /* Disable features based on sysctl settings */ 2749 if (!ice_tx_balance_en) 2750 ice_clear_bit(ICE_FEATURE_TX_BALANCE, sc->feat_cap); 2751 } 2752 2753 /** 2754 * ice_if_multi_set - Callback to update Multicast filters in HW 2755 * @ctx: iflib ctx structure 2756 * 2757 * Called by iflib in response to SIOCDELMULTI and SIOCADDMULTI. Must search 2758 * the if_multiaddrs list and determine which filters have been added or 2759 * removed from the list, and update HW programming to reflect the new list. 2760 * 2761 * @pre assumes the caller holds the iflib CTX lock 2762 */ 2763 static void 2764 ice_if_multi_set(if_ctx_t ctx) 2765 { 2766 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2767 int err; 2768 2769 ASSERT_CTX_LOCKED(sc); 2770 2771 /* Do not handle multicast configuration in recovery mode */ 2772 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 2773 return; 2774 2775 err = ice_sync_multicast_filters(sc); 2776 if (err) { 2777 device_printf(sc->dev, 2778 "Failed to synchronize multicast filter list: %s\n", 2779 ice_err_str(err)); 2780 return; 2781 } 2782 } 2783 2784 /** 2785 * ice_if_vlan_register - Register a VLAN with the hardware 2786 * @ctx: iflib ctx pointer 2787 * @vtag: VLAN to add 2788 * 2789 * Programs the main PF VSI with a hardware filter for the given VLAN. 2790 * 2791 * @pre assumes the caller holds the iflib CTX lock 2792 */ 2793 static void 2794 ice_if_vlan_register(if_ctx_t ctx, u16 vtag) 2795 { 2796 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2797 enum ice_status status; 2798 2799 ASSERT_CTX_LOCKED(sc); 2800 2801 /* Do not handle VLAN configuration in recovery mode */ 2802 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 2803 return; 2804 2805 status = ice_add_vlan_hw_filter(&sc->pf_vsi, vtag); 2806 if (status) { 2807 device_printf(sc->dev, 2808 "Failure adding VLAN %d to main VSI, err %s aq_err %s\n", 2809 vtag, ice_status_str(status), 2810 ice_aq_str(sc->hw.adminq.sq_last_status)); 2811 } 2812 } 2813 2814 /** 2815 * ice_if_vlan_unregister - Remove a VLAN filter from the hardware 2816 * @ctx: iflib ctx pointer 2817 * @vtag: VLAN to add 2818 * 2819 * Removes the previously programmed VLAN filter from the main PF VSI. 2820 * 2821 * @pre assumes the caller holds the iflib CTX lock 2822 */ 2823 static void 2824 ice_if_vlan_unregister(if_ctx_t ctx, u16 vtag) 2825 { 2826 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2827 enum ice_status status; 2828 2829 ASSERT_CTX_LOCKED(sc); 2830 2831 /* Do not handle VLAN configuration in recovery mode */ 2832 if (ice_test_state(&sc->state, ICE_STATE_RECOVERY_MODE)) 2833 return; 2834 2835 status = ice_remove_vlan_hw_filter(&sc->pf_vsi, vtag); 2836 if (status) { 2837 device_printf(sc->dev, 2838 "Failure removing VLAN %d from main VSI, err %s aq_err %s\n", 2839 vtag, ice_status_str(status), 2840 ice_aq_str(sc->hw.adminq.sq_last_status)); 2841 } 2842 } 2843 2844 /** 2845 * ice_if_stop - Stop the device 2846 * @ctx: iflib context structure 2847 * 2848 * Called by iflib to stop the device and bring it down. (i.e. ifconfig ice0 2849 * down) 2850 * 2851 * @pre assumes the caller holds the iflib CTX lock 2852 */ 2853 static void 2854 ice_if_stop(if_ctx_t ctx) 2855 { 2856 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2857 2858 ASSERT_CTX_LOCKED(sc); 2859 2860 /* 2861 * The iflib core may call IFDI_STOP prior to the first call to 2862 * IFDI_INIT. This will cause us to attempt to remove MAC filters we 2863 * don't have, and disable Tx queues which aren't yet configured. 2864 * Although it is likely these extra operations are harmless, they do 2865 * cause spurious warning messages to be displayed, which may confuse 2866 * users. 2867 * 2868 * To avoid these messages, we use a state bit indicating if we've 2869 * been initialized. It will be set when ice_if_init is called, and 2870 * cleared here in ice_if_stop. 2871 */ 2872 if (!ice_testandclear_state(&sc->state, ICE_STATE_DRIVER_INITIALIZED)) 2873 return; 2874 2875 if (ice_test_state(&sc->state, ICE_STATE_RESET_FAILED)) { 2876 device_printf(sc->dev, "request to stop interface cannot be completed as the device failed to reset\n"); 2877 return; 2878 } 2879 2880 if (ice_test_state(&sc->state, ICE_STATE_PREPARED_FOR_RESET)) { 2881 device_printf(sc->dev, "request to stop interface while device is prepared for impending reset\n"); 2882 return; 2883 } 2884 2885 ice_rdma_pf_stop(sc); 2886 2887 /* Remove the MAC filters, stop Tx, and stop Rx. We don't check the 2888 * return of these functions because there's nothing we can really do 2889 * if they fail, and the functions already print error messages. 2890 * Just try to shut down as much as we can. 2891 */ 2892 ice_rm_pf_default_mac_filters(sc); 2893 2894 /* Dissociate the Tx and Rx queues from the interrupts */ 2895 ice_flush_txq_interrupts(&sc->pf_vsi); 2896 ice_flush_rxq_interrupts(&sc->pf_vsi); 2897 2898 /* Disable the Tx and Rx queues */ 2899 ice_vsi_disable_tx(&sc->pf_vsi); 2900 ice_control_all_rx_queues(&sc->pf_vsi, false); 2901 } 2902 2903 /** 2904 * ice_if_get_counter - Get current value of an ifnet statistic 2905 * @ctx: iflib context pointer 2906 * @counter: ifnet counter to read 2907 * 2908 * Reads the current value of an ifnet counter for the device. 2909 * 2910 * This function is not protected by the iflib CTX lock. 2911 */ 2912 static uint64_t 2913 ice_if_get_counter(if_ctx_t ctx, ift_counter counter) 2914 { 2915 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2916 2917 /* Return the counter for the main PF VSI */ 2918 return ice_get_ifnet_counter(&sc->pf_vsi, counter); 2919 } 2920 2921 /** 2922 * ice_request_stack_reinit - Request that iflib re-initialize 2923 * @sc: the device private softc 2924 * 2925 * Request that the device be brought down and up, to re-initialize. For 2926 * example, this may be called when a device reset occurs, or when Tx and Rx 2927 * queues need to be re-initialized. 2928 * 2929 * This is required because the iflib state is outside the driver, and must be 2930 * re-initialized if we need to resart Tx and Rx queues. 2931 */ 2932 void 2933 ice_request_stack_reinit(struct ice_softc *sc) 2934 { 2935 if (CTX_ACTIVE(sc->ctx)) { 2936 iflib_request_reset(sc->ctx); 2937 iflib_admin_intr_deferred(sc->ctx); 2938 } 2939 } 2940 2941 /** 2942 * ice_driver_is_detaching - Check if the driver is detaching/unloading 2943 * @sc: device private softc 2944 * 2945 * Returns true if the driver is detaching, false otherwise. 2946 * 2947 * @remark on newer kernels, take advantage of iflib_in_detach in order to 2948 * report detachment correctly as early as possible. 2949 * 2950 * @remark this function is used by various code paths that want to avoid 2951 * running if the driver is about to be removed. This includes sysctls and 2952 * other driver access points. Note that it does not fully resolve 2953 * detach-based race conditions as it is possible for a thread to race with 2954 * iflib_in_detach. 2955 */ 2956 bool 2957 ice_driver_is_detaching(struct ice_softc *sc) 2958 { 2959 return (ice_test_state(&sc->state, ICE_STATE_DETACHING) || 2960 iflib_in_detach(sc->ctx)); 2961 } 2962 2963 /** 2964 * ice_if_priv_ioctl - Device private ioctl handler 2965 * @ctx: iflib context pointer 2966 * @command: The ioctl command issued 2967 * @data: ioctl specific data 2968 * 2969 * iflib callback for handling custom driver specific ioctls. 2970 * 2971 * @pre Assumes that the iflib context lock is held. 2972 */ 2973 static int 2974 ice_if_priv_ioctl(if_ctx_t ctx, u_long command, caddr_t data) 2975 { 2976 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 2977 struct ifdrv *ifd; 2978 device_t dev = sc->dev; 2979 2980 if (data == NULL) 2981 return (EINVAL); 2982 2983 ASSERT_CTX_LOCKED(sc); 2984 2985 /* Make sure the command type is valid */ 2986 switch (command) { 2987 case SIOCSDRVSPEC: 2988 case SIOCGDRVSPEC: 2989 /* Accepted commands */ 2990 break; 2991 case SIOCGPRIVATE_0: 2992 /* 2993 * Although we do not support this ioctl command, it's 2994 * expected that iflib will forward it to the IFDI_PRIV_IOCTL 2995 * handler. Do not print a message in this case 2996 */ 2997 return (ENOTSUP); 2998 default: 2999 /* 3000 * If we get a different command for this function, it's 3001 * definitely unexpected, so log a message indicating what 3002 * command we got for debugging purposes. 3003 */ 3004 device_printf(dev, "%s: unexpected ioctl command %08lx\n", 3005 __func__, command); 3006 return (EINVAL); 3007 } 3008 3009 ifd = (struct ifdrv *)data; 3010 3011 switch (ifd->ifd_cmd) { 3012 case ICE_NVM_ACCESS: 3013 return ice_handle_nvm_access_ioctl(sc, ifd); 3014 case ICE_DEBUG_DUMP: 3015 return ice_handle_debug_dump_ioctl(sc, ifd); 3016 default: 3017 return EINVAL; 3018 } 3019 } 3020 3021 /** 3022 * ice_if_i2c_req - I2C request handler for iflib 3023 * @ctx: iflib context pointer 3024 * @req: The I2C parameters to use 3025 * 3026 * Read from the port's I2C eeprom using the parameters from the ioctl. 3027 * 3028 * @remark The iflib-only part is pretty simple. 3029 */ 3030 static int 3031 ice_if_i2c_req(if_ctx_t ctx, struct ifi2creq *req) 3032 { 3033 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 3034 3035 return ice_handle_i2c_req(sc, req); 3036 } 3037 3038 /** 3039 * ice_if_suspend - PCI device suspend handler for iflib 3040 * @ctx: iflib context pointer 3041 * 3042 * Deinitializes the driver and clears HW resources in preparation for 3043 * suspend or an FLR. 3044 * 3045 * @returns 0; this return value is ignored 3046 */ 3047 static int 3048 ice_if_suspend(if_ctx_t ctx) 3049 { 3050 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 3051 3052 /* At least a PFR is always going to happen after this; 3053 * either via FLR or during the D3->D0 transition. 3054 */ 3055 ice_clear_state(&sc->state, ICE_STATE_RESET_PFR_REQ); 3056 3057 ice_prepare_for_reset(sc); 3058 3059 return (0); 3060 } 3061 3062 /** 3063 * ice_if_resume - PCI device resume handler for iflib 3064 * @ctx: iflib context pointer 3065 * 3066 * Reinitializes the driver and the HW after PCI resume or after 3067 * an FLR. An init is performed by iflib after this function is finished. 3068 * 3069 * @returns 0; this return value is ignored 3070 */ 3071 static int 3072 ice_if_resume(if_ctx_t ctx) 3073 { 3074 struct ice_softc *sc = (struct ice_softc *)iflib_get_softc(ctx); 3075 3076 ice_rebuild(sc); 3077 3078 return (0); 3079 } 3080 3081