ixv.c revision 1.114
1 /*$NetBSD: ixv.c,v 1.114 2019/05/23 13:10:52 msaitoh Exp $*/ 2 3 /****************************************************************************** 4 5 Copyright (c) 2001-2017, Intel Corporation 6 All rights reserved. 7 8 Redistribution and use in source and binary forms, with or without 9 modification, are permitted provided that the following conditions are met: 10 11 1. Redistributions of source code must retain the above copyright notice, 12 this list of conditions and the following disclaimer. 13 14 2. Redistributions in binary form must reproduce the above copyright 15 notice, this list of conditions and the following disclaimer in the 16 documentation and/or other materials provided with the distribution. 17 18 3. Neither the name of the Intel Corporation nor the names of its 19 contributors may be used to endorse or promote products derived from 20 this software without specific prior written permission. 21 22 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 23 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 26 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 POSSIBILITY OF SUCH DAMAGE. 33 34 ******************************************************************************/ 35 /*$FreeBSD: head/sys/dev/ixgbe/if_ixv.c 331224 2018-03-19 20:55:05Z erj $*/ 36 37 #ifdef _KERNEL_OPT 38 #include "opt_inet.h" 39 #include "opt_inet6.h" 40 #include "opt_net_mpsafe.h" 41 #endif 42 43 #include "ixgbe.h" 44 #include "vlan.h" 45 46 /************************************************************************ 47 * Driver version 48 ************************************************************************/ 49 static const char ixv_driver_version[] = "2.0.1-k"; 50 51 /************************************************************************ 52 * PCI Device ID Table 53 * 54 * Used by probe to select devices to load on 55 * Last field stores an index into ixv_strings 56 * Last entry must be all 0s 57 * 58 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, String Index } 59 ************************************************************************/ 60 static const ixgbe_vendor_info_t ixv_vendor_info_array[] = 61 { 62 {IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82599_VF, 0, 0, 0}, 63 {IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X540_VF, 0, 0, 0}, 64 {IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X550_VF, 0, 0, 0}, 65 {IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X550EM_X_VF, 0, 0, 0}, 66 {IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X550EM_A_VF, 0, 0, 0}, 67 /* required last entry */ 68 {0, 0, 0, 0, 0} 69 }; 70 71 /************************************************************************ 72 * Table of branding strings 73 ************************************************************************/ 74 static const char *ixv_strings[] = { 75 "Intel(R) PRO/10GbE Virtual Function Network Driver" 76 }; 77 78 /********************************************************************* 79 * Function prototypes 80 *********************************************************************/ 81 static int ixv_probe(device_t, cfdata_t, void *); 82 static void ixv_attach(device_t, device_t, void *); 83 static int ixv_detach(device_t, int); 84 #if 0 85 static int ixv_shutdown(device_t); 86 #endif 87 static int ixv_ifflags_cb(struct ethercom *); 88 static int ixv_ioctl(struct ifnet *, u_long, void *); 89 static int ixv_init(struct ifnet *); 90 static void ixv_init_locked(struct adapter *); 91 static void ixv_ifstop(struct ifnet *, int); 92 static void ixv_stop(void *); 93 static void ixv_init_device_features(struct adapter *); 94 static void ixv_media_status(struct ifnet *, struct ifmediareq *); 95 static int ixv_media_change(struct ifnet *); 96 static int ixv_allocate_pci_resources(struct adapter *, 97 const struct pci_attach_args *); 98 static int ixv_allocate_msix(struct adapter *, 99 const struct pci_attach_args *); 100 static int ixv_configure_interrupts(struct adapter *); 101 static void ixv_free_pci_resources(struct adapter *); 102 static void ixv_local_timer(void *); 103 static void ixv_local_timer_locked(void *); 104 static int ixv_setup_interface(device_t, struct adapter *); 105 static int ixv_negotiate_api(struct adapter *); 106 107 static void ixv_initialize_transmit_units(struct adapter *); 108 static void ixv_initialize_receive_units(struct adapter *); 109 static void ixv_initialize_rss_mapping(struct adapter *); 110 static void ixv_check_link(struct adapter *); 111 112 static void ixv_enable_intr(struct adapter *); 113 static void ixv_disable_intr(struct adapter *); 114 static void ixv_set_multi(struct adapter *); 115 static void ixv_update_link_status(struct adapter *); 116 static int ixv_sysctl_debug(SYSCTLFN_PROTO); 117 static void ixv_set_ivar(struct adapter *, u8, u8, s8); 118 static void ixv_configure_ivars(struct adapter *); 119 static u8 * ixv_mc_array_itr(struct ixgbe_hw *, u8 **, u32 *); 120 static void ixv_eitr_write(struct adapter *, uint32_t, uint32_t); 121 122 static void ixv_setup_vlan_support(struct adapter *); 123 #if 0 124 static void ixv_register_vlan(void *, struct ifnet *, u16); 125 static void ixv_unregister_vlan(void *, struct ifnet *, u16); 126 #endif 127 128 static void ixv_add_device_sysctls(struct adapter *); 129 static void ixv_save_stats(struct adapter *); 130 static void ixv_init_stats(struct adapter *); 131 static void ixv_update_stats(struct adapter *); 132 static void ixv_add_stats_sysctls(struct adapter *); 133 134 135 /* Sysctl handlers */ 136 static void ixv_set_sysctl_value(struct adapter *, const char *, 137 const char *, int *, int); 138 static int ixv_sysctl_interrupt_rate_handler(SYSCTLFN_PROTO); 139 static int ixv_sysctl_next_to_check_handler(SYSCTLFN_PROTO); 140 static int ixv_sysctl_rdh_handler(SYSCTLFN_PROTO); 141 static int ixv_sysctl_rdt_handler(SYSCTLFN_PROTO); 142 static int ixv_sysctl_tdt_handler(SYSCTLFN_PROTO); 143 static int ixv_sysctl_tdh_handler(SYSCTLFN_PROTO); 144 145 /* The MSI-X Interrupt handlers */ 146 static int ixv_msix_que(void *); 147 static int ixv_msix_mbx(void *); 148 149 /* Deferred interrupt tasklets */ 150 static void ixv_handle_que(void *); 151 static void ixv_handle_link(void *); 152 153 /* Workqueue handler for deferred work */ 154 static void ixv_handle_que_work(struct work *, void *); 155 156 const struct sysctlnode *ixv_sysctl_instance(struct adapter *); 157 static const ixgbe_vendor_info_t *ixv_lookup(const struct pci_attach_args *); 158 159 /************************************************************************ 160 * FreeBSD Device Interface Entry Points 161 ************************************************************************/ 162 CFATTACH_DECL3_NEW(ixv, sizeof(struct adapter), 163 ixv_probe, ixv_attach, ixv_detach, NULL, NULL, NULL, 164 DVF_DETACH_SHUTDOWN); 165 166 #if 0 167 static driver_t ixv_driver = { 168 "ixv", ixv_methods, sizeof(struct adapter), 169 }; 170 171 devclass_t ixv_devclass; 172 DRIVER_MODULE(ixv, pci, ixv_driver, ixv_devclass, 0, 0); 173 MODULE_DEPEND(ixv, pci, 1, 1, 1); 174 MODULE_DEPEND(ixv, ether, 1, 1, 1); 175 #endif 176 177 /* 178 * TUNEABLE PARAMETERS: 179 */ 180 181 /* Number of Queues - do not exceed MSI-X vectors - 1 */ 182 static int ixv_num_queues = 0; 183 #define TUNABLE_INT(__x, __y) 184 TUNABLE_INT("hw.ixv.num_queues", &ixv_num_queues); 185 186 /* 187 * AIM: Adaptive Interrupt Moderation 188 * which means that the interrupt rate 189 * is varied over time based on the 190 * traffic for that interrupt vector 191 */ 192 static bool ixv_enable_aim = false; 193 TUNABLE_INT("hw.ixv.enable_aim", &ixv_enable_aim); 194 195 static int ixv_max_interrupt_rate = (4000000 / IXGBE_LOW_LATENCY); 196 TUNABLE_INT("hw.ixv.max_interrupt_rate", &ixv_max_interrupt_rate); 197 198 /* How many packets rxeof tries to clean at a time */ 199 static int ixv_rx_process_limit = 256; 200 TUNABLE_INT("hw.ixv.rx_process_limit", &ixv_rx_process_limit); 201 202 /* How many packets txeof tries to clean at a time */ 203 static int ixv_tx_process_limit = 256; 204 TUNABLE_INT("hw.ixv.tx_process_limit", &ixv_tx_process_limit); 205 206 /* Which packet processing uses workqueue or softint */ 207 static bool ixv_txrx_workqueue = false; 208 209 /* 210 * Number of TX descriptors per ring, 211 * setting higher than RX as this seems 212 * the better performing choice. 213 */ 214 static int ixv_txd = PERFORM_TXD; 215 TUNABLE_INT("hw.ixv.txd", &ixv_txd); 216 217 /* Number of RX descriptors per ring */ 218 static int ixv_rxd = PERFORM_RXD; 219 TUNABLE_INT("hw.ixv.rxd", &ixv_rxd); 220 221 /* Legacy Transmit (single queue) */ 222 static int ixv_enable_legacy_tx = 0; 223 TUNABLE_INT("hw.ixv.enable_legacy_tx", &ixv_enable_legacy_tx); 224 225 #ifdef NET_MPSAFE 226 #define IXGBE_MPSAFE 1 227 #define IXGBE_CALLOUT_FLAGS CALLOUT_MPSAFE 228 #define IXGBE_SOFTINFT_FLAGS SOFTINT_MPSAFE 229 #define IXGBE_WORKQUEUE_FLAGS WQ_PERCPU | WQ_MPSAFE 230 #else 231 #define IXGBE_CALLOUT_FLAGS 0 232 #define IXGBE_SOFTINFT_FLAGS 0 233 #define IXGBE_WORKQUEUE_FLAGS WQ_PERCPU 234 #endif 235 #define IXGBE_WORKQUEUE_PRI PRI_SOFTNET 236 237 #if 0 238 static int (*ixv_start_locked)(struct ifnet *, struct tx_ring *); 239 static int (*ixv_ring_empty)(struct ifnet *, struct buf_ring *); 240 #endif 241 242 /************************************************************************ 243 * ixv_probe - Device identification routine 244 * 245 * Determines if the driver should be loaded on 246 * adapter based on its PCI vendor/device ID. 247 * 248 * return BUS_PROBE_DEFAULT on success, positive on failure 249 ************************************************************************/ 250 static int 251 ixv_probe(device_t dev, cfdata_t cf, void *aux) 252 { 253 #ifdef __HAVE_PCI_MSI_MSIX 254 const struct pci_attach_args *pa = aux; 255 256 return (ixv_lookup(pa) != NULL) ? 1 : 0; 257 #else 258 return 0; 259 #endif 260 } /* ixv_probe */ 261 262 static const ixgbe_vendor_info_t * 263 ixv_lookup(const struct pci_attach_args *pa) 264 { 265 const ixgbe_vendor_info_t *ent; 266 pcireg_t subid; 267 268 INIT_DEBUGOUT("ixv_lookup: begin"); 269 270 if (PCI_VENDOR(pa->pa_id) != IXGBE_INTEL_VENDOR_ID) 271 return NULL; 272 273 subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 274 275 for (ent = ixv_vendor_info_array; ent->vendor_id != 0; ent++) { 276 if ((PCI_VENDOR(pa->pa_id) == ent->vendor_id) && 277 (PCI_PRODUCT(pa->pa_id) == ent->device_id) && 278 ((PCI_SUBSYS_VENDOR(subid) == ent->subvendor_id) || 279 (ent->subvendor_id == 0)) && 280 ((PCI_SUBSYS_ID(subid) == ent->subdevice_id) || 281 (ent->subdevice_id == 0))) { 282 return ent; 283 } 284 } 285 286 return NULL; 287 } 288 289 /************************************************************************ 290 * ixv_attach - Device initialization routine 291 * 292 * Called when the driver is being loaded. 293 * Identifies the type of hardware, allocates all resources 294 * and initializes the hardware. 295 * 296 * return 0 on success, positive on failure 297 ************************************************************************/ 298 static void 299 ixv_attach(device_t parent, device_t dev, void *aux) 300 { 301 struct adapter *adapter; 302 struct ixgbe_hw *hw; 303 int error = 0; 304 pcireg_t id, subid; 305 const ixgbe_vendor_info_t *ent; 306 const struct pci_attach_args *pa = aux; 307 const char *apivstr; 308 const char *str; 309 char buf[256]; 310 311 INIT_DEBUGOUT("ixv_attach: begin"); 312 313 /* 314 * Make sure BUSMASTER is set, on a VM under 315 * KVM it may not be and will break things. 316 */ 317 ixgbe_pci_enable_busmaster(pa->pa_pc, pa->pa_tag); 318 319 /* Allocate, clear, and link in our adapter structure */ 320 adapter = device_private(dev); 321 adapter->dev = dev; 322 adapter->hw.back = adapter; 323 hw = &adapter->hw; 324 325 adapter->init_locked = ixv_init_locked; 326 adapter->stop_locked = ixv_stop; 327 328 adapter->osdep.pc = pa->pa_pc; 329 adapter->osdep.tag = pa->pa_tag; 330 if (pci_dma64_available(pa)) 331 adapter->osdep.dmat = pa->pa_dmat64; 332 else 333 adapter->osdep.dmat = pa->pa_dmat; 334 adapter->osdep.attached = false; 335 336 ent = ixv_lookup(pa); 337 338 KASSERT(ent != NULL); 339 340 aprint_normal(": %s, Version - %s\n", 341 ixv_strings[ent->index], ixv_driver_version); 342 343 /* Core Lock Init*/ 344 IXGBE_CORE_LOCK_INIT(adapter, device_xname(dev)); 345 346 /* Do base PCI setup - map BAR0 */ 347 if (ixv_allocate_pci_resources(adapter, pa)) { 348 aprint_error_dev(dev, "ixv_allocate_pci_resources() failed!\n"); 349 error = ENXIO; 350 goto err_out; 351 } 352 353 /* SYSCTL APIs */ 354 ixv_add_device_sysctls(adapter); 355 356 /* Set up the timer callout */ 357 callout_init(&adapter->timer, IXGBE_CALLOUT_FLAGS); 358 359 /* Save off the information about this board */ 360 id = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 361 subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 362 hw->vendor_id = PCI_VENDOR(id); 363 hw->device_id = PCI_PRODUCT(id); 364 hw->revision_id = 365 PCI_REVISION(pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG)); 366 hw->subsystem_vendor_id = PCI_SUBSYS_VENDOR(subid); 367 hw->subsystem_device_id = PCI_SUBSYS_ID(subid); 368 369 /* A subset of set_mac_type */ 370 switch (hw->device_id) { 371 case IXGBE_DEV_ID_82599_VF: 372 hw->mac.type = ixgbe_mac_82599_vf; 373 str = "82599 VF"; 374 break; 375 case IXGBE_DEV_ID_X540_VF: 376 hw->mac.type = ixgbe_mac_X540_vf; 377 str = "X540 VF"; 378 break; 379 case IXGBE_DEV_ID_X550_VF: 380 hw->mac.type = ixgbe_mac_X550_vf; 381 str = "X550 VF"; 382 break; 383 case IXGBE_DEV_ID_X550EM_X_VF: 384 hw->mac.type = ixgbe_mac_X550EM_x_vf; 385 str = "X550EM X VF"; 386 break; 387 case IXGBE_DEV_ID_X550EM_A_VF: 388 hw->mac.type = ixgbe_mac_X550EM_a_vf; 389 str = "X550EM A VF"; 390 break; 391 default: 392 /* Shouldn't get here since probe succeeded */ 393 aprint_error_dev(dev, "Unknown device ID!\n"); 394 error = ENXIO; 395 goto err_out; 396 break; 397 } 398 aprint_normal_dev(dev, "device %s\n", str); 399 400 ixv_init_device_features(adapter); 401 402 /* Initialize the shared code */ 403 error = ixgbe_init_ops_vf(hw); 404 if (error) { 405 aprint_error_dev(dev, "ixgbe_init_ops_vf() failed!\n"); 406 error = EIO; 407 goto err_out; 408 } 409 410 /* Setup the mailbox */ 411 ixgbe_init_mbx_params_vf(hw); 412 413 /* Set the right number of segments */ 414 adapter->num_segs = IXGBE_82599_SCATTER; 415 416 /* Reset mbox api to 1.0 */ 417 error = hw->mac.ops.reset_hw(hw); 418 if (error == IXGBE_ERR_RESET_FAILED) 419 aprint_error_dev(dev, "...reset_hw() failure: Reset Failed!\n"); 420 else if (error) 421 aprint_error_dev(dev, "...reset_hw() failed with error %d\n", 422 error); 423 if (error) { 424 error = EIO; 425 goto err_out; 426 } 427 428 error = hw->mac.ops.init_hw(hw); 429 if (error) { 430 aprint_error_dev(dev, "...init_hw() failed!\n"); 431 error = EIO; 432 goto err_out; 433 } 434 435 /* Negotiate mailbox API version */ 436 error = ixv_negotiate_api(adapter); 437 if (error) 438 aprint_normal_dev(dev, 439 "MBX API negotiation failed during attach!\n"); 440 switch (hw->api_version) { 441 case ixgbe_mbox_api_10: 442 apivstr = "1.0"; 443 break; 444 case ixgbe_mbox_api_20: 445 apivstr = "2.0"; 446 break; 447 case ixgbe_mbox_api_11: 448 apivstr = "1.1"; 449 break; 450 case ixgbe_mbox_api_12: 451 apivstr = "1.2"; 452 break; 453 case ixgbe_mbox_api_13: 454 apivstr = "1.3"; 455 break; 456 default: 457 apivstr = "unknown"; 458 break; 459 } 460 aprint_normal_dev(dev, "Mailbox API %s\n", apivstr); 461 462 /* If no mac address was assigned, make a random one */ 463 if (!ixv_check_ether_addr(hw->mac.addr)) { 464 u8 addr[ETHER_ADDR_LEN]; 465 uint64_t rndval = cprng_strong64(); 466 467 memcpy(addr, &rndval, sizeof(addr)); 468 addr[0] &= 0xFE; 469 addr[0] |= 0x02; 470 bcopy(addr, hw->mac.addr, sizeof(addr)); 471 } 472 473 /* Register for VLAN events */ 474 #if 0 /* XXX delete after write? */ 475 adapter->vlan_attach = EVENTHANDLER_REGISTER(vlan_config, 476 ixv_register_vlan, adapter, EVENTHANDLER_PRI_FIRST); 477 adapter->vlan_detach = EVENTHANDLER_REGISTER(vlan_unconfig, 478 ixv_unregister_vlan, adapter, EVENTHANDLER_PRI_FIRST); 479 #endif 480 481 /* Sysctls for limiting the amount of work done in the taskqueues */ 482 ixv_set_sysctl_value(adapter, "rx_processing_limit", 483 "max number of rx packets to process", 484 &adapter->rx_process_limit, ixv_rx_process_limit); 485 486 ixv_set_sysctl_value(adapter, "tx_processing_limit", 487 "max number of tx packets to process", 488 &adapter->tx_process_limit, ixv_tx_process_limit); 489 490 /* Do descriptor calc and sanity checks */ 491 if (((ixv_txd * sizeof(union ixgbe_adv_tx_desc)) % DBA_ALIGN) != 0 || 492 ixv_txd < MIN_TXD || ixv_txd > MAX_TXD) { 493 aprint_error_dev(dev, "TXD config issue, using default!\n"); 494 adapter->num_tx_desc = DEFAULT_TXD; 495 } else 496 adapter->num_tx_desc = ixv_txd; 497 498 if (((ixv_rxd * sizeof(union ixgbe_adv_rx_desc)) % DBA_ALIGN) != 0 || 499 ixv_rxd < MIN_RXD || ixv_rxd > MAX_RXD) { 500 aprint_error_dev(dev, "RXD config issue, using default!\n"); 501 adapter->num_rx_desc = DEFAULT_RXD; 502 } else 503 adapter->num_rx_desc = ixv_rxd; 504 505 /* Setup MSI-X */ 506 error = ixv_configure_interrupts(adapter); 507 if (error) 508 goto err_out; 509 510 /* Allocate our TX/RX Queues */ 511 if (ixgbe_allocate_queues(adapter)) { 512 aprint_error_dev(dev, "ixgbe_allocate_queues() failed!\n"); 513 error = ENOMEM; 514 goto err_out; 515 } 516 517 /* hw.ix defaults init */ 518 adapter->enable_aim = ixv_enable_aim; 519 520 adapter->txrx_use_workqueue = ixv_txrx_workqueue; 521 522 error = ixv_allocate_msix(adapter, pa); 523 if (error) { 524 device_printf(dev, "ixv_allocate_msix() failed!\n"); 525 goto err_late; 526 } 527 528 /* Setup OS specific network interface */ 529 error = ixv_setup_interface(dev, adapter); 530 if (error != 0) { 531 aprint_error_dev(dev, "ixv_setup_interface() failed!\n"); 532 goto err_late; 533 } 534 535 /* Do the stats setup */ 536 ixv_save_stats(adapter); 537 ixv_init_stats(adapter); 538 ixv_add_stats_sysctls(adapter); 539 540 if (adapter->feat_en & IXGBE_FEATURE_NETMAP) 541 ixgbe_netmap_attach(adapter); 542 543 snprintb(buf, sizeof(buf), IXGBE_FEATURE_FLAGS, adapter->feat_cap); 544 aprint_verbose_dev(dev, "feature cap %s\n", buf); 545 snprintb(buf, sizeof(buf), IXGBE_FEATURE_FLAGS, adapter->feat_en); 546 aprint_verbose_dev(dev, "feature ena %s\n", buf); 547 548 INIT_DEBUGOUT("ixv_attach: end"); 549 adapter->osdep.attached = true; 550 551 return; 552 553 err_late: 554 ixgbe_free_transmit_structures(adapter); 555 ixgbe_free_receive_structures(adapter); 556 free(adapter->queues, M_DEVBUF); 557 err_out: 558 ixv_free_pci_resources(adapter); 559 IXGBE_CORE_LOCK_DESTROY(adapter); 560 561 return; 562 } /* ixv_attach */ 563 564 /************************************************************************ 565 * ixv_detach - Device removal routine 566 * 567 * Called when the driver is being removed. 568 * Stops the adapter and deallocates all the resources 569 * that were allocated for driver operation. 570 * 571 * return 0 on success, positive on failure 572 ************************************************************************/ 573 static int 574 ixv_detach(device_t dev, int flags) 575 { 576 struct adapter *adapter = device_private(dev); 577 struct ixgbe_hw *hw = &adapter->hw; 578 struct ix_queue *que = adapter->queues; 579 struct tx_ring *txr = adapter->tx_rings; 580 struct rx_ring *rxr = adapter->rx_rings; 581 struct ixgbevf_hw_stats *stats = &adapter->stats.vf; 582 583 INIT_DEBUGOUT("ixv_detach: begin"); 584 if (adapter->osdep.attached == false) 585 return 0; 586 587 /* Stop the interface. Callouts are stopped in it. */ 588 ixv_ifstop(adapter->ifp, 1); 589 590 #if NVLAN > 0 591 /* Make sure VLANs are not using driver */ 592 if (!VLAN_ATTACHED(&adapter->osdep.ec)) 593 ; /* nothing to do: no VLANs */ 594 else if ((flags & (DETACH_SHUTDOWN | DETACH_FORCE)) != 0) 595 vlan_ifdetach(adapter->ifp); 596 else { 597 aprint_error_dev(dev, "VLANs in use, detach first\n"); 598 return EBUSY; 599 } 600 #endif 601 602 IXGBE_CORE_LOCK(adapter); 603 ixv_stop(adapter); 604 IXGBE_CORE_UNLOCK(adapter); 605 606 for (int i = 0; i < adapter->num_queues; i++, que++, txr++) { 607 if (!(adapter->feat_en & IXGBE_FEATURE_LEGACY_TX)) 608 softint_disestablish(txr->txr_si); 609 softint_disestablish(que->que_si); 610 } 611 if (adapter->txr_wq != NULL) 612 workqueue_destroy(adapter->txr_wq); 613 if (adapter->txr_wq_enqueued != NULL) 614 percpu_free(adapter->txr_wq_enqueued, sizeof(u_int)); 615 if (adapter->que_wq != NULL) 616 workqueue_destroy(adapter->que_wq); 617 618 /* Drain the Mailbox(link) queue */ 619 softint_disestablish(adapter->link_si); 620 621 /* Unregister VLAN events */ 622 #if 0 /* XXX msaitoh delete after write? */ 623 if (adapter->vlan_attach != NULL) 624 EVENTHANDLER_DEREGISTER(vlan_config, adapter->vlan_attach); 625 if (adapter->vlan_detach != NULL) 626 EVENTHANDLER_DEREGISTER(vlan_unconfig, adapter->vlan_detach); 627 #endif 628 629 ether_ifdetach(adapter->ifp); 630 callout_halt(&adapter->timer, NULL); 631 632 if (adapter->feat_en & IXGBE_FEATURE_NETMAP) 633 netmap_detach(adapter->ifp); 634 635 ixv_free_pci_resources(adapter); 636 #if 0 /* XXX the NetBSD port is probably missing something here */ 637 bus_generic_detach(dev); 638 #endif 639 if_detach(adapter->ifp); 640 if_percpuq_destroy(adapter->ipq); 641 642 sysctl_teardown(&adapter->sysctllog); 643 evcnt_detach(&adapter->efbig_tx_dma_setup); 644 evcnt_detach(&adapter->mbuf_defrag_failed); 645 evcnt_detach(&adapter->efbig2_tx_dma_setup); 646 evcnt_detach(&adapter->einval_tx_dma_setup); 647 evcnt_detach(&adapter->other_tx_dma_setup); 648 evcnt_detach(&adapter->eagain_tx_dma_setup); 649 evcnt_detach(&adapter->enomem_tx_dma_setup); 650 evcnt_detach(&adapter->watchdog_events); 651 evcnt_detach(&adapter->tso_err); 652 evcnt_detach(&adapter->link_irq); 653 654 txr = adapter->tx_rings; 655 for (int i = 0; i < adapter->num_queues; i++, rxr++, txr++) { 656 evcnt_detach(&adapter->queues[i].irqs); 657 evcnt_detach(&adapter->queues[i].handleq); 658 evcnt_detach(&adapter->queues[i].req); 659 evcnt_detach(&txr->no_desc_avail); 660 evcnt_detach(&txr->total_packets); 661 evcnt_detach(&txr->tso_tx); 662 #ifndef IXGBE_LEGACY_TX 663 evcnt_detach(&txr->pcq_drops); 664 #endif 665 666 evcnt_detach(&rxr->rx_packets); 667 evcnt_detach(&rxr->rx_bytes); 668 evcnt_detach(&rxr->rx_copies); 669 evcnt_detach(&rxr->no_jmbuf); 670 evcnt_detach(&rxr->rx_discarded); 671 } 672 evcnt_detach(&stats->ipcs); 673 evcnt_detach(&stats->l4cs); 674 evcnt_detach(&stats->ipcs_bad); 675 evcnt_detach(&stats->l4cs_bad); 676 677 /* Packet Reception Stats */ 678 evcnt_detach(&stats->vfgorc); 679 evcnt_detach(&stats->vfgprc); 680 evcnt_detach(&stats->vfmprc); 681 682 /* Packet Transmission Stats */ 683 evcnt_detach(&stats->vfgotc); 684 evcnt_detach(&stats->vfgptc); 685 686 /* Mailbox Stats */ 687 evcnt_detach(&hw->mbx.stats.msgs_tx); 688 evcnt_detach(&hw->mbx.stats.msgs_rx); 689 evcnt_detach(&hw->mbx.stats.acks); 690 evcnt_detach(&hw->mbx.stats.reqs); 691 evcnt_detach(&hw->mbx.stats.rsts); 692 693 ixgbe_free_transmit_structures(adapter); 694 ixgbe_free_receive_structures(adapter); 695 for (int i = 0; i < adapter->num_queues; i++) { 696 struct ix_queue *lque = &adapter->queues[i]; 697 mutex_destroy(&lque->dc_mtx); 698 } 699 free(adapter->queues, M_DEVBUF); 700 701 IXGBE_CORE_LOCK_DESTROY(adapter); 702 703 return (0); 704 } /* ixv_detach */ 705 706 /************************************************************************ 707 * ixv_init_locked - Init entry point 708 * 709 * Used in two ways: It is used by the stack as an init entry 710 * point in network interface structure. It is also used 711 * by the driver as a hw/sw initialization routine to get 712 * to a consistent state. 713 * 714 * return 0 on success, positive on failure 715 ************************************************************************/ 716 static void 717 ixv_init_locked(struct adapter *adapter) 718 { 719 struct ifnet *ifp = adapter->ifp; 720 device_t dev = adapter->dev; 721 struct ixgbe_hw *hw = &adapter->hw; 722 struct ix_queue *que; 723 int error = 0; 724 uint32_t mask; 725 int i; 726 727 INIT_DEBUGOUT("ixv_init_locked: begin"); 728 KASSERT(mutex_owned(&adapter->core_mtx)); 729 hw->adapter_stopped = FALSE; 730 hw->mac.ops.stop_adapter(hw); 731 callout_stop(&adapter->timer); 732 for (i = 0, que = adapter->queues; i < adapter->num_queues; i++, que++) 733 que->disabled_count = 0; 734 735 /* reprogram the RAR[0] in case user changed it. */ 736 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV); 737 738 /* Get the latest mac address, User can use a LAA */ 739 memcpy(hw->mac.addr, CLLADDR(ifp->if_sadl), 740 IXGBE_ETH_LENGTH_OF_ADDRESS); 741 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, 1); 742 743 /* Prepare transmit descriptors and buffers */ 744 if (ixgbe_setup_transmit_structures(adapter)) { 745 aprint_error_dev(dev, "Could not setup transmit structures\n"); 746 ixv_stop(adapter); 747 return; 748 } 749 750 /* Reset VF and renegotiate mailbox API version */ 751 hw->mac.ops.reset_hw(hw); 752 hw->mac.ops.start_hw(hw); 753 error = ixv_negotiate_api(adapter); 754 if (error) 755 device_printf(dev, 756 "Mailbox API negotiation failed in init_locked!\n"); 757 758 ixv_initialize_transmit_units(adapter); 759 760 /* Setup Multicast table */ 761 ixv_set_multi(adapter); 762 763 /* 764 * Determine the correct mbuf pool 765 * for doing jumbo/headersplit 766 */ 767 if (ifp->if_mtu > ETHERMTU) 768 adapter->rx_mbuf_sz = MJUMPAGESIZE; 769 else 770 adapter->rx_mbuf_sz = MCLBYTES; 771 772 /* Prepare receive descriptors and buffers */ 773 if (ixgbe_setup_receive_structures(adapter)) { 774 device_printf(dev, "Could not setup receive structures\n"); 775 ixv_stop(adapter); 776 return; 777 } 778 779 /* Configure RX settings */ 780 ixv_initialize_receive_units(adapter); 781 782 #if 0 /* XXX isn't it required? -- msaitoh */ 783 /* Set the various hardware offload abilities */ 784 ifp->if_hwassist = 0; 785 if (ifp->if_capenable & IFCAP_TSO4) 786 ifp->if_hwassist |= CSUM_TSO; 787 if (ifp->if_capenable & IFCAP_TXCSUM) { 788 ifp->if_hwassist |= (CSUM_TCP | CSUM_UDP); 789 #if __FreeBSD_version >= 800000 790 ifp->if_hwassist |= CSUM_SCTP; 791 #endif 792 } 793 #endif 794 795 /* Set up VLAN offload and filter */ 796 ixv_setup_vlan_support(adapter); 797 798 /* Set up MSI-X routing */ 799 ixv_configure_ivars(adapter); 800 801 /* Set up auto-mask */ 802 mask = (1 << adapter->vector); 803 for (i = 0, que = adapter->queues; i < adapter->num_queues; i++, que++) 804 mask |= (1 << que->msix); 805 IXGBE_WRITE_REG(hw, IXGBE_VTEIAM, mask); 806 807 /* Set moderation on the Link interrupt */ 808 ixv_eitr_write(adapter, adapter->vector, IXGBE_LINK_ITR); 809 810 /* Stats init */ 811 ixv_init_stats(adapter); 812 813 /* Config/Enable Link */ 814 hw->mac.get_link_status = TRUE; 815 hw->mac.ops.check_link(hw, &adapter->link_speed, &adapter->link_up, 816 FALSE); 817 818 /* Start watchdog */ 819 callout_reset(&adapter->timer, hz, ixv_local_timer, adapter); 820 821 /* And now turn on interrupts */ 822 ixv_enable_intr(adapter); 823 824 /* Update saved flags. See ixgbe_ifflags_cb() */ 825 adapter->if_flags = ifp->if_flags; 826 827 /* Now inform the stack we're ready */ 828 ifp->if_flags |= IFF_RUNNING; 829 ifp->if_flags &= ~IFF_OACTIVE; 830 831 return; 832 } /* ixv_init_locked */ 833 834 /************************************************************************ 835 * ixv_enable_queue 836 ************************************************************************/ 837 static inline void 838 ixv_enable_queue(struct adapter *adapter, u32 vector) 839 { 840 struct ixgbe_hw *hw = &adapter->hw; 841 struct ix_queue *que = &adapter->queues[vector]; 842 u32 queue = 1 << vector; 843 u32 mask; 844 845 mutex_enter(&que->dc_mtx); 846 if (que->disabled_count > 0 && --que->disabled_count > 0) 847 goto out; 848 849 mask = (IXGBE_EIMS_RTX_QUEUE & queue); 850 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, mask); 851 out: 852 mutex_exit(&que->dc_mtx); 853 } /* ixv_enable_queue */ 854 855 /************************************************************************ 856 * ixv_disable_queue 857 ************************************************************************/ 858 static inline void 859 ixv_disable_queue(struct adapter *adapter, u32 vector) 860 { 861 struct ixgbe_hw *hw = &adapter->hw; 862 struct ix_queue *que = &adapter->queues[vector]; 863 u64 queue = (u64)(1 << vector); 864 u32 mask; 865 866 mutex_enter(&que->dc_mtx); 867 if (que->disabled_count++ > 0) 868 goto out; 869 870 mask = (IXGBE_EIMS_RTX_QUEUE & queue); 871 IXGBE_WRITE_REG(hw, IXGBE_VTEIMC, mask); 872 out: 873 mutex_exit(&que->dc_mtx); 874 } /* ixv_disable_queue */ 875 876 #if 0 877 static inline void 878 ixv_rearm_queues(struct adapter *adapter, u64 queues) 879 { 880 u32 mask = (IXGBE_EIMS_RTX_QUEUE & queues); 881 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEICS, mask); 882 } /* ixv_rearm_queues */ 883 #endif 884 885 886 /************************************************************************ 887 * ixv_msix_que - MSI-X Queue Interrupt Service routine 888 ************************************************************************/ 889 static int 890 ixv_msix_que(void *arg) 891 { 892 struct ix_queue *que = arg; 893 struct adapter *adapter = que->adapter; 894 struct tx_ring *txr = que->txr; 895 struct rx_ring *rxr = que->rxr; 896 bool more; 897 u32 newitr = 0; 898 899 ixv_disable_queue(adapter, que->msix); 900 ++que->irqs.ev_count; 901 902 #ifdef __NetBSD__ 903 /* Don't run ixgbe_rxeof in interrupt context */ 904 more = true; 905 #else 906 more = ixgbe_rxeof(que); 907 #endif 908 909 IXGBE_TX_LOCK(txr); 910 ixgbe_txeof(txr); 911 IXGBE_TX_UNLOCK(txr); 912 913 /* Do AIM now? */ 914 915 if (adapter->enable_aim == false) 916 goto no_calc; 917 /* 918 * Do Adaptive Interrupt Moderation: 919 * - Write out last calculated setting 920 * - Calculate based on average size over 921 * the last interval. 922 */ 923 if (que->eitr_setting) 924 ixv_eitr_write(adapter, que->msix, que->eitr_setting); 925 926 que->eitr_setting = 0; 927 928 /* Idle, do nothing */ 929 if ((txr->bytes == 0) && (rxr->bytes == 0)) 930 goto no_calc; 931 932 if ((txr->bytes) && (txr->packets)) 933 newitr = txr->bytes/txr->packets; 934 if ((rxr->bytes) && (rxr->packets)) 935 newitr = uimax(newitr, (rxr->bytes / rxr->packets)); 936 newitr += 24; /* account for hardware frame, crc */ 937 938 /* set an upper boundary */ 939 newitr = uimin(newitr, 3000); 940 941 /* Be nice to the mid range */ 942 if ((newitr > 300) && (newitr < 1200)) 943 newitr = (newitr / 3); 944 else 945 newitr = (newitr / 2); 946 947 /* 948 * When RSC is used, ITR interval must be larger than RSC_DELAY. 949 * Currently, we use 2us for RSC_DELAY. The minimum value is always 950 * greater than 2us on 100M (and 10M?(not documented)), but it's not 951 * on 1G and higher. 952 */ 953 if ((adapter->link_speed != IXGBE_LINK_SPEED_100_FULL) 954 && (adapter->link_speed != IXGBE_LINK_SPEED_10_FULL)) { 955 if (newitr < IXGBE_MIN_RSC_EITR_10G1G) 956 newitr = IXGBE_MIN_RSC_EITR_10G1G; 957 } 958 959 /* save for next interrupt */ 960 que->eitr_setting = newitr; 961 962 /* Reset state */ 963 txr->bytes = 0; 964 txr->packets = 0; 965 rxr->bytes = 0; 966 rxr->packets = 0; 967 968 no_calc: 969 if (more) 970 softint_schedule(que->que_si); 971 else /* Re-enable this interrupt */ 972 ixv_enable_queue(adapter, que->msix); 973 974 return 1; 975 } /* ixv_msix_que */ 976 977 /************************************************************************ 978 * ixv_msix_mbx 979 ************************************************************************/ 980 static int 981 ixv_msix_mbx(void *arg) 982 { 983 struct adapter *adapter = arg; 984 struct ixgbe_hw *hw = &adapter->hw; 985 986 ++adapter->link_irq.ev_count; 987 /* NetBSD: We use auto-clear, so it's not required to write VTEICR */ 988 989 /* Link status change */ 990 hw->mac.get_link_status = TRUE; 991 softint_schedule(adapter->link_si); 992 993 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, (1 << adapter->vector)); 994 995 return 1; 996 } /* ixv_msix_mbx */ 997 998 static void 999 ixv_eitr_write(struct adapter *adapter, uint32_t index, uint32_t itr) 1000 { 1001 1002 /* 1003 * Newer devices than 82598 have VF function, so this function is 1004 * simple. 1005 */ 1006 itr |= IXGBE_EITR_CNT_WDIS; 1007 1008 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEITR(index), itr); 1009 } 1010 1011 1012 /************************************************************************ 1013 * ixv_media_status - Media Ioctl callback 1014 * 1015 * Called whenever the user queries the status of 1016 * the interface using ifconfig. 1017 ************************************************************************/ 1018 static void 1019 ixv_media_status(struct ifnet *ifp, struct ifmediareq *ifmr) 1020 { 1021 struct adapter *adapter = ifp->if_softc; 1022 1023 INIT_DEBUGOUT("ixv_media_status: begin"); 1024 IXGBE_CORE_LOCK(adapter); 1025 ixv_update_link_status(adapter); 1026 1027 ifmr->ifm_status = IFM_AVALID; 1028 ifmr->ifm_active = IFM_ETHER; 1029 1030 if (adapter->link_active != LINK_STATE_UP) { 1031 ifmr->ifm_active |= IFM_NONE; 1032 IXGBE_CORE_UNLOCK(adapter); 1033 return; 1034 } 1035 1036 ifmr->ifm_status |= IFM_ACTIVE; 1037 1038 switch (adapter->link_speed) { 1039 case IXGBE_LINK_SPEED_10GB_FULL: 1040 ifmr->ifm_active |= IFM_10G_T | IFM_FDX; 1041 break; 1042 case IXGBE_LINK_SPEED_5GB_FULL: 1043 ifmr->ifm_active |= IFM_5000_T | IFM_FDX; 1044 break; 1045 case IXGBE_LINK_SPEED_2_5GB_FULL: 1046 ifmr->ifm_active |= IFM_2500_T | IFM_FDX; 1047 break; 1048 case IXGBE_LINK_SPEED_1GB_FULL: 1049 ifmr->ifm_active |= IFM_1000_T | IFM_FDX; 1050 break; 1051 case IXGBE_LINK_SPEED_100_FULL: 1052 ifmr->ifm_active |= IFM_100_TX | IFM_FDX; 1053 break; 1054 case IXGBE_LINK_SPEED_10_FULL: 1055 ifmr->ifm_active |= IFM_10_T | IFM_FDX; 1056 break; 1057 } 1058 1059 ifp->if_baudrate = ifmedia_baudrate(ifmr->ifm_active); 1060 1061 IXGBE_CORE_UNLOCK(adapter); 1062 } /* ixv_media_status */ 1063 1064 /************************************************************************ 1065 * ixv_media_change - Media Ioctl callback 1066 * 1067 * Called when the user changes speed/duplex using 1068 * media/mediopt option with ifconfig. 1069 ************************************************************************/ 1070 static int 1071 ixv_media_change(struct ifnet *ifp) 1072 { 1073 struct adapter *adapter = ifp->if_softc; 1074 struct ifmedia *ifm = &adapter->media; 1075 1076 INIT_DEBUGOUT("ixv_media_change: begin"); 1077 1078 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 1079 return (EINVAL); 1080 1081 switch (IFM_SUBTYPE(ifm->ifm_media)) { 1082 case IFM_AUTO: 1083 break; 1084 default: 1085 device_printf(adapter->dev, "Only auto media type\n"); 1086 return (EINVAL); 1087 } 1088 1089 return (0); 1090 } /* ixv_media_change */ 1091 1092 1093 /************************************************************************ 1094 * ixv_negotiate_api 1095 * 1096 * Negotiate the Mailbox API with the PF; 1097 * start with the most featured API first. 1098 ************************************************************************/ 1099 static int 1100 ixv_negotiate_api(struct adapter *adapter) 1101 { 1102 struct ixgbe_hw *hw = &adapter->hw; 1103 int mbx_api[] = { ixgbe_mbox_api_11, 1104 ixgbe_mbox_api_10, 1105 ixgbe_mbox_api_unknown }; 1106 int i = 0; 1107 1108 while (mbx_api[i] != ixgbe_mbox_api_unknown) { 1109 if (ixgbevf_negotiate_api_version(hw, mbx_api[i]) == 0) 1110 return (0); 1111 i++; 1112 } 1113 1114 return (EINVAL); 1115 } /* ixv_negotiate_api */ 1116 1117 1118 /************************************************************************ 1119 * ixv_set_multi - Multicast Update 1120 * 1121 * Called whenever multicast address list is updated. 1122 ************************************************************************/ 1123 static void 1124 ixv_set_multi(struct adapter *adapter) 1125 { 1126 struct ether_multi *enm; 1127 struct ether_multistep step; 1128 struct ethercom *ec = &adapter->osdep.ec; 1129 u8 mta[MAX_NUM_MULTICAST_ADDRESSES * IXGBE_ETH_LENGTH_OF_ADDRESS]; 1130 u8 *update_ptr; 1131 int mcnt = 0; 1132 1133 KASSERT(mutex_owned(&adapter->core_mtx)); 1134 IOCTL_DEBUGOUT("ixv_set_multi: begin"); 1135 1136 ETHER_LOCK(ec); 1137 ETHER_FIRST_MULTI(step, ec, enm); 1138 while (enm != NULL) { 1139 bcopy(enm->enm_addrlo, 1140 &mta[mcnt * IXGBE_ETH_LENGTH_OF_ADDRESS], 1141 IXGBE_ETH_LENGTH_OF_ADDRESS); 1142 mcnt++; 1143 /* XXX This might be required --msaitoh */ 1144 if (mcnt >= MAX_NUM_MULTICAST_ADDRESSES) 1145 break; 1146 ETHER_NEXT_MULTI(step, enm); 1147 } 1148 ETHER_UNLOCK(ec); 1149 1150 update_ptr = mta; 1151 1152 adapter->hw.mac.ops.update_mc_addr_list(&adapter->hw, update_ptr, mcnt, 1153 ixv_mc_array_itr, TRUE); 1154 } /* ixv_set_multi */ 1155 1156 /************************************************************************ 1157 * ixv_mc_array_itr 1158 * 1159 * An iterator function needed by the multicast shared code. 1160 * It feeds the shared code routine the addresses in the 1161 * array of ixv_set_multi() one by one. 1162 ************************************************************************/ 1163 static u8 * 1164 ixv_mc_array_itr(struct ixgbe_hw *hw, u8 **update_ptr, u32 *vmdq) 1165 { 1166 u8 *addr = *update_ptr; 1167 u8 *newptr; 1168 1169 *vmdq = 0; 1170 1171 newptr = addr + IXGBE_ETH_LENGTH_OF_ADDRESS; 1172 *update_ptr = newptr; 1173 1174 return addr; 1175 } /* ixv_mc_array_itr */ 1176 1177 /************************************************************************ 1178 * ixv_local_timer - Timer routine 1179 * 1180 * Checks for link status, updates statistics, 1181 * and runs the watchdog check. 1182 ************************************************************************/ 1183 static void 1184 ixv_local_timer(void *arg) 1185 { 1186 struct adapter *adapter = arg; 1187 1188 IXGBE_CORE_LOCK(adapter); 1189 ixv_local_timer_locked(adapter); 1190 IXGBE_CORE_UNLOCK(adapter); 1191 } 1192 1193 static void 1194 ixv_local_timer_locked(void *arg) 1195 { 1196 struct adapter *adapter = arg; 1197 device_t dev = adapter->dev; 1198 struct ix_queue *que = adapter->queues; 1199 u64 queues = 0; 1200 u64 v0, v1, v2, v3, v4, v5, v6, v7; 1201 int hung = 0; 1202 int i; 1203 1204 KASSERT(mutex_owned(&adapter->core_mtx)); 1205 1206 ixv_check_link(adapter); 1207 1208 /* Stats Update */ 1209 ixv_update_stats(adapter); 1210 1211 /* Update some event counters */ 1212 v0 = v1 = v2 = v3 = v4 = v5 = v6 = v7 = 0; 1213 que = adapter->queues; 1214 for (i = 0; i < adapter->num_queues; i++, que++) { 1215 struct tx_ring *txr = que->txr; 1216 1217 v0 += txr->q_efbig_tx_dma_setup; 1218 v1 += txr->q_mbuf_defrag_failed; 1219 v2 += txr->q_efbig2_tx_dma_setup; 1220 v3 += txr->q_einval_tx_dma_setup; 1221 v4 += txr->q_other_tx_dma_setup; 1222 v5 += txr->q_eagain_tx_dma_setup; 1223 v6 += txr->q_enomem_tx_dma_setup; 1224 v7 += txr->q_tso_err; 1225 } 1226 adapter->efbig_tx_dma_setup.ev_count = v0; 1227 adapter->mbuf_defrag_failed.ev_count = v1; 1228 adapter->efbig2_tx_dma_setup.ev_count = v2; 1229 adapter->einval_tx_dma_setup.ev_count = v3; 1230 adapter->other_tx_dma_setup.ev_count = v4; 1231 adapter->eagain_tx_dma_setup.ev_count = v5; 1232 adapter->enomem_tx_dma_setup.ev_count = v6; 1233 adapter->tso_err.ev_count = v7; 1234 1235 /* 1236 * Check the TX queues status 1237 * - mark hung queues so we don't schedule on them 1238 * - watchdog only if all queues show hung 1239 */ 1240 que = adapter->queues; 1241 for (i = 0; i < adapter->num_queues; i++, que++) { 1242 /* Keep track of queues with work for soft irq */ 1243 if (que->txr->busy) 1244 queues |= ((u64)1 << que->me); 1245 /* 1246 * Each time txeof runs without cleaning, but there 1247 * are uncleaned descriptors it increments busy. If 1248 * we get to the MAX we declare it hung. 1249 */ 1250 if (que->busy == IXGBE_QUEUE_HUNG) { 1251 ++hung; 1252 /* Mark the queue as inactive */ 1253 adapter->active_queues &= ~((u64)1 << que->me); 1254 continue; 1255 } else { 1256 /* Check if we've come back from hung */ 1257 if ((adapter->active_queues & ((u64)1 << que->me)) == 0) 1258 adapter->active_queues |= ((u64)1 << que->me); 1259 } 1260 if (que->busy >= IXGBE_MAX_TX_BUSY) { 1261 device_printf(dev, 1262 "Warning queue %d appears to be hung!\n", i); 1263 que->txr->busy = IXGBE_QUEUE_HUNG; 1264 ++hung; 1265 } 1266 } 1267 1268 /* Only truly watchdog if all queues show hung */ 1269 if (hung == adapter->num_queues) 1270 goto watchdog; 1271 #if 0 1272 else if (queues != 0) { /* Force an IRQ on queues with work */ 1273 ixv_rearm_queues(adapter, queues); 1274 } 1275 #endif 1276 1277 callout_reset(&adapter->timer, hz, ixv_local_timer, adapter); 1278 1279 return; 1280 1281 watchdog: 1282 1283 device_printf(adapter->dev, "Watchdog timeout -- resetting\n"); 1284 adapter->ifp->if_flags &= ~IFF_RUNNING; 1285 adapter->watchdog_events.ev_count++; 1286 ixv_init_locked(adapter); 1287 } /* ixv_local_timer */ 1288 1289 /************************************************************************ 1290 * ixv_update_link_status - Update OS on link state 1291 * 1292 * Note: Only updates the OS on the cached link state. 1293 * The real check of the hardware only happens with 1294 * a link interrupt. 1295 ************************************************************************/ 1296 static void 1297 ixv_update_link_status(struct adapter *adapter) 1298 { 1299 struct ifnet *ifp = adapter->ifp; 1300 device_t dev = adapter->dev; 1301 1302 KASSERT(mutex_owned(&adapter->core_mtx)); 1303 1304 if (adapter->link_up) { 1305 if (adapter->link_active != LINK_STATE_UP) { 1306 if (bootverbose) { 1307 const char *bpsmsg; 1308 1309 switch (adapter->link_speed) { 1310 case IXGBE_LINK_SPEED_10GB_FULL: 1311 bpsmsg = "10 Gbps"; 1312 break; 1313 case IXGBE_LINK_SPEED_5GB_FULL: 1314 bpsmsg = "5 Gbps"; 1315 break; 1316 case IXGBE_LINK_SPEED_2_5GB_FULL: 1317 bpsmsg = "2.5 Gbps"; 1318 break; 1319 case IXGBE_LINK_SPEED_1GB_FULL: 1320 bpsmsg = "1 Gbps"; 1321 break; 1322 case IXGBE_LINK_SPEED_100_FULL: 1323 bpsmsg = "100 Mbps"; 1324 break; 1325 case IXGBE_LINK_SPEED_10_FULL: 1326 bpsmsg = "10 Mbps"; 1327 break; 1328 default: 1329 bpsmsg = "unknown speed"; 1330 break; 1331 } 1332 device_printf(dev, "Link is up %s %s \n", 1333 bpsmsg, "Full Duplex"); 1334 } 1335 adapter->link_active = LINK_STATE_UP; 1336 if_link_state_change(ifp, LINK_STATE_UP); 1337 } 1338 } else { 1339 /* 1340 * Do it when link active changes to DOWN. i.e. 1341 * a) LINK_STATE_UNKNOWN -> LINK_STATE_DOWN 1342 * b) LINK_STATE_UP -> LINK_STATE_DOWN 1343 */ 1344 if (adapter->link_active != LINK_STATE_DOWN) { 1345 if (bootverbose) 1346 device_printf(dev, "Link is Down\n"); 1347 if_link_state_change(ifp, LINK_STATE_DOWN); 1348 adapter->link_active = LINK_STATE_DOWN; 1349 } 1350 } 1351 } /* ixv_update_link_status */ 1352 1353 1354 /************************************************************************ 1355 * ixv_stop - Stop the hardware 1356 * 1357 * Disables all traffic on the adapter by issuing a 1358 * global reset on the MAC and deallocates TX/RX buffers. 1359 ************************************************************************/ 1360 static void 1361 ixv_ifstop(struct ifnet *ifp, int disable) 1362 { 1363 struct adapter *adapter = ifp->if_softc; 1364 1365 IXGBE_CORE_LOCK(adapter); 1366 ixv_stop(adapter); 1367 IXGBE_CORE_UNLOCK(adapter); 1368 } 1369 1370 static void 1371 ixv_stop(void *arg) 1372 { 1373 struct ifnet *ifp; 1374 struct adapter *adapter = arg; 1375 struct ixgbe_hw *hw = &adapter->hw; 1376 1377 ifp = adapter->ifp; 1378 1379 KASSERT(mutex_owned(&adapter->core_mtx)); 1380 1381 INIT_DEBUGOUT("ixv_stop: begin\n"); 1382 ixv_disable_intr(adapter); 1383 1384 /* Tell the stack that the interface is no longer active */ 1385 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1386 1387 hw->mac.ops.reset_hw(hw); 1388 adapter->hw.adapter_stopped = FALSE; 1389 hw->mac.ops.stop_adapter(hw); 1390 callout_stop(&adapter->timer); 1391 1392 /* reprogram the RAR[0] in case user changed it. */ 1393 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV); 1394 1395 return; 1396 } /* ixv_stop */ 1397 1398 1399 /************************************************************************ 1400 * ixv_allocate_pci_resources 1401 ************************************************************************/ 1402 static int 1403 ixv_allocate_pci_resources(struct adapter *adapter, 1404 const struct pci_attach_args *pa) 1405 { 1406 pcireg_t memtype, csr; 1407 device_t dev = adapter->dev; 1408 bus_addr_t addr; 1409 int flags; 1410 1411 memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, PCI_BAR(0)); 1412 switch (memtype) { 1413 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: 1414 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: 1415 adapter->osdep.mem_bus_space_tag = pa->pa_memt; 1416 if (pci_mapreg_info(pa->pa_pc, pa->pa_tag, PCI_BAR(0), 1417 memtype, &addr, &adapter->osdep.mem_size, &flags) != 0) 1418 goto map_err; 1419 if ((flags & BUS_SPACE_MAP_PREFETCHABLE) != 0) { 1420 aprint_normal_dev(dev, "clearing prefetchable bit\n"); 1421 flags &= ~BUS_SPACE_MAP_PREFETCHABLE; 1422 } 1423 if (bus_space_map(adapter->osdep.mem_bus_space_tag, addr, 1424 adapter->osdep.mem_size, flags, 1425 &adapter->osdep.mem_bus_space_handle) != 0) { 1426 map_err: 1427 adapter->osdep.mem_size = 0; 1428 aprint_error_dev(dev, "unable to map BAR0\n"); 1429 return ENXIO; 1430 } 1431 /* 1432 * Enable address decoding for memory range in case it's not 1433 * set. 1434 */ 1435 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, 1436 PCI_COMMAND_STATUS_REG); 1437 csr |= PCI_COMMAND_MEM_ENABLE; 1438 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1439 csr); 1440 break; 1441 default: 1442 aprint_error_dev(dev, "unexpected type on BAR0\n"); 1443 return ENXIO; 1444 } 1445 1446 /* Pick up the tuneable queues */ 1447 adapter->num_queues = ixv_num_queues; 1448 1449 return (0); 1450 } /* ixv_allocate_pci_resources */ 1451 1452 /************************************************************************ 1453 * ixv_free_pci_resources 1454 ************************************************************************/ 1455 static void 1456 ixv_free_pci_resources(struct adapter * adapter) 1457 { 1458 struct ix_queue *que = adapter->queues; 1459 int rid; 1460 1461 /* 1462 * Release all msix queue resources: 1463 */ 1464 for (int i = 0; i < adapter->num_queues; i++, que++) { 1465 if (que->res != NULL) 1466 pci_intr_disestablish(adapter->osdep.pc, 1467 adapter->osdep.ihs[i]); 1468 } 1469 1470 1471 /* Clean the Mailbox interrupt last */ 1472 rid = adapter->vector; 1473 1474 if (adapter->osdep.ihs[rid] != NULL) { 1475 pci_intr_disestablish(adapter->osdep.pc, 1476 adapter->osdep.ihs[rid]); 1477 adapter->osdep.ihs[rid] = NULL; 1478 } 1479 1480 pci_intr_release(adapter->osdep.pc, adapter->osdep.intrs, 1481 adapter->osdep.nintrs); 1482 1483 if (adapter->osdep.mem_size != 0) { 1484 bus_space_unmap(adapter->osdep.mem_bus_space_tag, 1485 adapter->osdep.mem_bus_space_handle, 1486 adapter->osdep.mem_size); 1487 } 1488 1489 return; 1490 } /* ixv_free_pci_resources */ 1491 1492 /************************************************************************ 1493 * ixv_setup_interface 1494 * 1495 * Setup networking device structure and register an interface. 1496 ************************************************************************/ 1497 static int 1498 ixv_setup_interface(device_t dev, struct adapter *adapter) 1499 { 1500 struct ethercom *ec = &adapter->osdep.ec; 1501 struct ifnet *ifp; 1502 int rv; 1503 1504 INIT_DEBUGOUT("ixv_setup_interface: begin"); 1505 1506 ifp = adapter->ifp = &ec->ec_if; 1507 strlcpy(ifp->if_xname, device_xname(dev), IFNAMSIZ); 1508 ifp->if_baudrate = IF_Gbps(10); 1509 ifp->if_init = ixv_init; 1510 ifp->if_stop = ixv_ifstop; 1511 ifp->if_softc = adapter; 1512 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 1513 #ifdef IXGBE_MPSAFE 1514 ifp->if_extflags = IFEF_MPSAFE; 1515 #endif 1516 ifp->if_ioctl = ixv_ioctl; 1517 if (adapter->feat_en & IXGBE_FEATURE_LEGACY_TX) { 1518 #if 0 1519 ixv_start_locked = ixgbe_legacy_start_locked; 1520 #endif 1521 } else { 1522 ifp->if_transmit = ixgbe_mq_start; 1523 #if 0 1524 ixv_start_locked = ixgbe_mq_start_locked; 1525 #endif 1526 } 1527 ifp->if_start = ixgbe_legacy_start; 1528 IFQ_SET_MAXLEN(&ifp->if_snd, adapter->num_tx_desc - 2); 1529 IFQ_SET_READY(&ifp->if_snd); 1530 1531 rv = if_initialize(ifp); 1532 if (rv != 0) { 1533 aprint_error_dev(dev, "if_initialize failed(%d)\n", rv); 1534 return rv; 1535 } 1536 adapter->ipq = if_percpuq_create(&adapter->osdep.ec.ec_if); 1537 ether_ifattach(ifp, adapter->hw.mac.addr); 1538 /* 1539 * We use per TX queue softint, so if_deferred_start_init() isn't 1540 * used. 1541 */ 1542 ether_set_ifflags_cb(ec, ixv_ifflags_cb); 1543 1544 adapter->max_frame_size = ifp->if_mtu + IXGBE_MTU_HDR; 1545 1546 /* 1547 * Tell the upper layer(s) we support long frames. 1548 */ 1549 ifp->if_hdrlen = sizeof(struct ether_vlan_header); 1550 1551 /* Set capability flags */ 1552 ifp->if_capabilities |= IFCAP_HWCSUM 1553 | IFCAP_TSOv4 1554 | IFCAP_TSOv6; 1555 ifp->if_capenable = 0; 1556 1557 ec->ec_capabilities |= ETHERCAP_VLAN_HWTAGGING 1558 | ETHERCAP_VLAN_HWCSUM 1559 | ETHERCAP_JUMBO_MTU 1560 | ETHERCAP_VLAN_MTU; 1561 1562 /* Enable the above capabilities by default */ 1563 ec->ec_capenable = ec->ec_capabilities; 1564 1565 /* Don't enable LRO by default */ 1566 #if 0 1567 /* NetBSD doesn't support LRO yet */ 1568 ifp->if_capabilities |= IFCAP_LRO; 1569 #endif 1570 1571 /* 1572 * Specify the media types supported by this adapter and register 1573 * callbacks to update media and link information 1574 */ 1575 ifmedia_init(&adapter->media, IFM_IMASK, ixv_media_change, 1576 ixv_media_status); 1577 ifmedia_add(&adapter->media, IFM_ETHER | IFM_AUTO, 0, NULL); 1578 ifmedia_set(&adapter->media, IFM_ETHER | IFM_AUTO); 1579 1580 if_register(ifp); 1581 1582 return 0; 1583 } /* ixv_setup_interface */ 1584 1585 1586 /************************************************************************ 1587 * ixv_initialize_transmit_units - Enable transmit unit. 1588 ************************************************************************/ 1589 static void 1590 ixv_initialize_transmit_units(struct adapter *adapter) 1591 { 1592 struct tx_ring *txr = adapter->tx_rings; 1593 struct ixgbe_hw *hw = &adapter->hw; 1594 int i; 1595 1596 for (i = 0; i < adapter->num_queues; i++, txr++) { 1597 u64 tdba = txr->txdma.dma_paddr; 1598 u32 txctrl, txdctl; 1599 int j = txr->me; 1600 1601 /* Set WTHRESH to 8, burst writeback */ 1602 txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(j)); 1603 txdctl |= (8 << 16); 1604 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(j), txdctl); 1605 1606 /* Set the HW Tx Head and Tail indices */ 1607 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VFTDH(j), 0); 1608 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VFTDT(j), 0); 1609 1610 /* Set Tx Tail register */ 1611 txr->tail = IXGBE_VFTDT(j); 1612 1613 txr->txr_no_space = false; 1614 1615 /* Set Ring parameters */ 1616 IXGBE_WRITE_REG(hw, IXGBE_VFTDBAL(j), 1617 (tdba & 0x00000000ffffffffULL)); 1618 IXGBE_WRITE_REG(hw, IXGBE_VFTDBAH(j), (tdba >> 32)); 1619 IXGBE_WRITE_REG(hw, IXGBE_VFTDLEN(j), 1620 adapter->num_tx_desc * sizeof(struct ixgbe_legacy_tx_desc)); 1621 txctrl = IXGBE_READ_REG(hw, IXGBE_VFDCA_TXCTRL(j)); 1622 txctrl &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN; 1623 IXGBE_WRITE_REG(hw, IXGBE_VFDCA_TXCTRL(j), txctrl); 1624 1625 /* Now enable */ 1626 txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(j)); 1627 txdctl |= IXGBE_TXDCTL_ENABLE; 1628 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(j), txdctl); 1629 } 1630 1631 return; 1632 } /* ixv_initialize_transmit_units */ 1633 1634 1635 /************************************************************************ 1636 * ixv_initialize_rss_mapping 1637 ************************************************************************/ 1638 static void 1639 ixv_initialize_rss_mapping(struct adapter *adapter) 1640 { 1641 struct ixgbe_hw *hw = &adapter->hw; 1642 u32 reta = 0, mrqc, rss_key[10]; 1643 int queue_id; 1644 int i, j; 1645 u32 rss_hash_config; 1646 1647 /* force use default RSS key. */ 1648 #ifdef __NetBSD__ 1649 rss_getkey((uint8_t *) &rss_key); 1650 #else 1651 if (adapter->feat_en & IXGBE_FEATURE_RSS) { 1652 /* Fetch the configured RSS key */ 1653 rss_getkey((uint8_t *)&rss_key); 1654 } else { 1655 /* set up random bits */ 1656 cprng_fast(&rss_key, sizeof(rss_key)); 1657 } 1658 #endif 1659 1660 /* Now fill out hash function seeds */ 1661 for (i = 0; i < 10; i++) 1662 IXGBE_WRITE_REG(hw, IXGBE_VFRSSRK(i), rss_key[i]); 1663 1664 /* Set up the redirection table */ 1665 for (i = 0, j = 0; i < 64; i++, j++) { 1666 if (j == adapter->num_queues) 1667 j = 0; 1668 1669 if (adapter->feat_en & IXGBE_FEATURE_RSS) { 1670 /* 1671 * Fetch the RSS bucket id for the given indirection 1672 * entry. Cap it at the number of configured buckets 1673 * (which is num_queues.) 1674 */ 1675 queue_id = rss_get_indirection_to_bucket(i); 1676 queue_id = queue_id % adapter->num_queues; 1677 } else 1678 queue_id = j; 1679 1680 /* 1681 * The low 8 bits are for hash value (n+0); 1682 * The next 8 bits are for hash value (n+1), etc. 1683 */ 1684 reta >>= 8; 1685 reta |= ((uint32_t)queue_id) << 24; 1686 if ((i & 3) == 3) { 1687 IXGBE_WRITE_REG(hw, IXGBE_VFRETA(i >> 2), reta); 1688 reta = 0; 1689 } 1690 } 1691 1692 /* Perform hash on these packet types */ 1693 if (adapter->feat_en & IXGBE_FEATURE_RSS) 1694 rss_hash_config = rss_gethashconfig(); 1695 else { 1696 /* 1697 * Disable UDP - IP fragments aren't currently being handled 1698 * and so we end up with a mix of 2-tuple and 4-tuple 1699 * traffic. 1700 */ 1701 rss_hash_config = RSS_HASHTYPE_RSS_IPV4 1702 | RSS_HASHTYPE_RSS_TCP_IPV4 1703 | RSS_HASHTYPE_RSS_IPV6 1704 | RSS_HASHTYPE_RSS_TCP_IPV6; 1705 } 1706 1707 mrqc = IXGBE_MRQC_RSSEN; 1708 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV4) 1709 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4; 1710 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV4) 1711 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_TCP; 1712 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6) 1713 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6; 1714 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV6) 1715 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_TCP; 1716 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6_EX) 1717 device_printf(adapter->dev, "%s: RSS_HASHTYPE_RSS_IPV6_EX defined, but not supported\n", 1718 __func__); 1719 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV6_EX) 1720 device_printf(adapter->dev, "%s: RSS_HASHTYPE_RSS_TCP_IPV6_EX defined, but not supported\n", 1721 __func__); 1722 if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV4) 1723 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP; 1724 if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV6) 1725 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP; 1726 if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV6_EX) 1727 device_printf(adapter->dev, "%s: RSS_HASHTYPE_RSS_UDP_IPV6_EX defined, but not supported\n", 1728 __func__); 1729 IXGBE_WRITE_REG(hw, IXGBE_VFMRQC, mrqc); 1730 } /* ixv_initialize_rss_mapping */ 1731 1732 1733 /************************************************************************ 1734 * ixv_initialize_receive_units - Setup receive registers and features. 1735 ************************************************************************/ 1736 static void 1737 ixv_initialize_receive_units(struct adapter *adapter) 1738 { 1739 struct rx_ring *rxr = adapter->rx_rings; 1740 struct ixgbe_hw *hw = &adapter->hw; 1741 struct ifnet *ifp = adapter->ifp; 1742 u32 bufsz, rxcsum, psrtype; 1743 1744 if (ifp->if_mtu > ETHERMTU) 1745 bufsz = 4096 >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; 1746 else 1747 bufsz = 2048 >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; 1748 1749 psrtype = IXGBE_PSRTYPE_TCPHDR 1750 | IXGBE_PSRTYPE_UDPHDR 1751 | IXGBE_PSRTYPE_IPV4HDR 1752 | IXGBE_PSRTYPE_IPV6HDR 1753 | IXGBE_PSRTYPE_L2HDR; 1754 1755 if (adapter->num_queues > 1) 1756 psrtype |= 1 << 29; 1757 1758 IXGBE_WRITE_REG(hw, IXGBE_VFPSRTYPE, psrtype); 1759 1760 /* Tell PF our max_frame size */ 1761 if (ixgbevf_rlpml_set_vf(hw, adapter->max_frame_size) != 0) { 1762 device_printf(adapter->dev, "There is a problem with the PF setup. It is likely the receive unit for this VF will not function correctly.\n"); 1763 } 1764 1765 for (int i = 0; i < adapter->num_queues; i++, rxr++) { 1766 u64 rdba = rxr->rxdma.dma_paddr; 1767 u32 reg, rxdctl; 1768 int j = rxr->me; 1769 1770 /* Disable the queue */ 1771 rxdctl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(j)); 1772 rxdctl &= ~IXGBE_RXDCTL_ENABLE; 1773 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(j), rxdctl); 1774 for (int k = 0; k < 10; k++) { 1775 if (IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(j)) & 1776 IXGBE_RXDCTL_ENABLE) 1777 msec_delay(1); 1778 else 1779 break; 1780 } 1781 wmb(); 1782 /* Setup the Base and Length of the Rx Descriptor Ring */ 1783 IXGBE_WRITE_REG(hw, IXGBE_VFRDBAL(j), 1784 (rdba & 0x00000000ffffffffULL)); 1785 IXGBE_WRITE_REG(hw, IXGBE_VFRDBAH(j), (rdba >> 32)); 1786 IXGBE_WRITE_REG(hw, IXGBE_VFRDLEN(j), 1787 adapter->num_rx_desc * sizeof(union ixgbe_adv_rx_desc)); 1788 1789 /* Reset the ring indices */ 1790 IXGBE_WRITE_REG(hw, IXGBE_VFRDH(rxr->me), 0); 1791 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me), 0); 1792 1793 /* Set up the SRRCTL register */ 1794 reg = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(j)); 1795 reg &= ~IXGBE_SRRCTL_BSIZEHDR_MASK; 1796 reg &= ~IXGBE_SRRCTL_BSIZEPKT_MASK; 1797 reg |= bufsz; 1798 reg |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF; 1799 IXGBE_WRITE_REG(hw, IXGBE_VFSRRCTL(j), reg); 1800 1801 /* Capture Rx Tail index */ 1802 rxr->tail = IXGBE_VFRDT(rxr->me); 1803 1804 /* Do the queue enabling last */ 1805 rxdctl |= IXGBE_RXDCTL_ENABLE | IXGBE_RXDCTL_VME; 1806 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(j), rxdctl); 1807 for (int k = 0; k < 10; k++) { 1808 if (IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(j)) & 1809 IXGBE_RXDCTL_ENABLE) 1810 break; 1811 msec_delay(1); 1812 } 1813 wmb(); 1814 1815 /* Set the Tail Pointer */ 1816 #ifdef DEV_NETMAP 1817 /* 1818 * In netmap mode, we must preserve the buffers made 1819 * available to userspace before the if_init() 1820 * (this is true by default on the TX side, because 1821 * init makes all buffers available to userspace). 1822 * 1823 * netmap_reset() and the device specific routines 1824 * (e.g. ixgbe_setup_receive_rings()) map these 1825 * buffers at the end of the NIC ring, so here we 1826 * must set the RDT (tail) register to make sure 1827 * they are not overwritten. 1828 * 1829 * In this driver the NIC ring starts at RDH = 0, 1830 * RDT points to the last slot available for reception (?), 1831 * so RDT = num_rx_desc - 1 means the whole ring is available. 1832 */ 1833 if ((adapter->feat_en & IXGBE_FEATURE_NETMAP) && 1834 (ifp->if_capenable & IFCAP_NETMAP)) { 1835 struct netmap_adapter *na = NA(adapter->ifp); 1836 struct netmap_kring *kring = &na->rx_rings[i]; 1837 int t = na->num_rx_desc - 1 - nm_kr_rxspace(kring); 1838 1839 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me), t); 1840 } else 1841 #endif /* DEV_NETMAP */ 1842 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me), 1843 adapter->num_rx_desc - 1); 1844 } 1845 1846 rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM); 1847 1848 ixv_initialize_rss_mapping(adapter); 1849 1850 if (adapter->num_queues > 1) { 1851 /* RSS and RX IPP Checksum are mutually exclusive */ 1852 rxcsum |= IXGBE_RXCSUM_PCSD; 1853 } 1854 1855 if (ifp->if_capenable & IFCAP_RXCSUM) 1856 rxcsum |= IXGBE_RXCSUM_PCSD; 1857 1858 if (!(rxcsum & IXGBE_RXCSUM_PCSD)) 1859 rxcsum |= IXGBE_RXCSUM_IPPCSE; 1860 1861 IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum); 1862 } /* ixv_initialize_receive_units */ 1863 1864 /************************************************************************ 1865 * ixv_sysctl_tdh_handler - Transmit Descriptor Head handler function 1866 * 1867 * Retrieves the TDH value from the hardware 1868 ************************************************************************/ 1869 static int 1870 ixv_sysctl_tdh_handler(SYSCTLFN_ARGS) 1871 { 1872 struct sysctlnode node = *rnode; 1873 struct tx_ring *txr = (struct tx_ring *)node.sysctl_data; 1874 uint32_t val; 1875 1876 if (!txr) 1877 return (0); 1878 1879 val = IXGBE_READ_REG(&txr->adapter->hw, IXGBE_VFTDH(txr->me)); 1880 node.sysctl_data = &val; 1881 return sysctl_lookup(SYSCTLFN_CALL(&node)); 1882 } /* ixv_sysctl_tdh_handler */ 1883 1884 /************************************************************************ 1885 * ixgbe_sysctl_tdt_handler - Transmit Descriptor Tail handler function 1886 * 1887 * Retrieves the TDT value from the hardware 1888 ************************************************************************/ 1889 static int 1890 ixv_sysctl_tdt_handler(SYSCTLFN_ARGS) 1891 { 1892 struct sysctlnode node = *rnode; 1893 struct tx_ring *txr = (struct tx_ring *)node.sysctl_data; 1894 uint32_t val; 1895 1896 if (!txr) 1897 return (0); 1898 1899 val = IXGBE_READ_REG(&txr->adapter->hw, IXGBE_VFTDT(txr->me)); 1900 node.sysctl_data = &val; 1901 return sysctl_lookup(SYSCTLFN_CALL(&node)); 1902 } /* ixv_sysctl_tdt_handler */ 1903 1904 /************************************************************************ 1905 * ixv_sysctl_next_to_check_handler - Receive Descriptor next to check 1906 * handler function 1907 * 1908 * Retrieves the next_to_check value 1909 ************************************************************************/ 1910 static int 1911 ixv_sysctl_next_to_check_handler(SYSCTLFN_ARGS) 1912 { 1913 struct sysctlnode node = *rnode; 1914 struct rx_ring *rxr = (struct rx_ring *)node.sysctl_data; 1915 uint32_t val; 1916 1917 if (!rxr) 1918 return (0); 1919 1920 val = rxr->next_to_check; 1921 node.sysctl_data = &val; 1922 return sysctl_lookup(SYSCTLFN_CALL(&node)); 1923 } /* ixv_sysctl_next_to_check_handler */ 1924 1925 /************************************************************************ 1926 * ixv_sysctl_rdh_handler - Receive Descriptor Head handler function 1927 * 1928 * Retrieves the RDH value from the hardware 1929 ************************************************************************/ 1930 static int 1931 ixv_sysctl_rdh_handler(SYSCTLFN_ARGS) 1932 { 1933 struct sysctlnode node = *rnode; 1934 struct rx_ring *rxr = (struct rx_ring *)node.sysctl_data; 1935 uint32_t val; 1936 1937 if (!rxr) 1938 return (0); 1939 1940 val = IXGBE_READ_REG(&rxr->adapter->hw, IXGBE_VFRDH(rxr->me)); 1941 node.sysctl_data = &val; 1942 return sysctl_lookup(SYSCTLFN_CALL(&node)); 1943 } /* ixv_sysctl_rdh_handler */ 1944 1945 /************************************************************************ 1946 * ixv_sysctl_rdt_handler - Receive Descriptor Tail handler function 1947 * 1948 * Retrieves the RDT value from the hardware 1949 ************************************************************************/ 1950 static int 1951 ixv_sysctl_rdt_handler(SYSCTLFN_ARGS) 1952 { 1953 struct sysctlnode node = *rnode; 1954 struct rx_ring *rxr = (struct rx_ring *)node.sysctl_data; 1955 uint32_t val; 1956 1957 if (!rxr) 1958 return (0); 1959 1960 val = IXGBE_READ_REG(&rxr->adapter->hw, IXGBE_VFRDT(rxr->me)); 1961 node.sysctl_data = &val; 1962 return sysctl_lookup(SYSCTLFN_CALL(&node)); 1963 } /* ixv_sysctl_rdt_handler */ 1964 1965 /************************************************************************ 1966 * ixv_setup_vlan_support 1967 ************************************************************************/ 1968 static void 1969 ixv_setup_vlan_support(struct adapter *adapter) 1970 { 1971 struct ethercom *ec = &adapter->osdep.ec; 1972 struct ixgbe_hw *hw = &adapter->hw; 1973 struct rx_ring *rxr; 1974 u32 ctrl, vid, vfta, retry; 1975 bool hwtagging; 1976 1977 /* 1978 * This function is called from both if_init and ifflags_cb() 1979 * on NetBSD. 1980 */ 1981 1982 /* Enable HW tagging only if any vlan is attached */ 1983 hwtagging = (ec->ec_capenable & ETHERCAP_VLAN_HWTAGGING) 1984 && VLAN_ATTACHED(ec); 1985 1986 /* Enable the queues */ 1987 for (int i = 0; i < adapter->num_queues; i++) { 1988 rxr = &adapter->rx_rings[i]; 1989 ctrl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(rxr->me)); 1990 if (hwtagging) 1991 ctrl |= IXGBE_RXDCTL_VME; 1992 else 1993 ctrl &= ~IXGBE_RXDCTL_VME; 1994 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(rxr->me), ctrl); 1995 /* 1996 * Let Rx path know that it needs to store VLAN tag 1997 * as part of extra mbuf info. 1998 */ 1999 rxr->vtag_strip = hwtagging ? TRUE : FALSE; 2000 } 2001 2002 #if 1 2003 /* XXX dirty hack. Enable all VIDs */ 2004 for (int i = 0; i < IXGBE_VFTA_SIZE; i++) 2005 adapter->shadow_vfta[i] = 0xffffffff; 2006 #endif 2007 /* 2008 * A soft reset zero's out the VFTA, so 2009 * we need to repopulate it now. 2010 */ 2011 for (int i = 0; i < IXGBE_VFTA_SIZE; i++) { 2012 if (adapter->shadow_vfta[i] == 0) 2013 continue; 2014 vfta = adapter->shadow_vfta[i]; 2015 /* 2016 * Reconstruct the vlan id's 2017 * based on the bits set in each 2018 * of the array ints. 2019 */ 2020 for (int j = 0; j < 32; j++) { 2021 retry = 0; 2022 if ((vfta & (1 << j)) == 0) 2023 continue; 2024 vid = (i * 32) + j; 2025 /* Call the shared code mailbox routine */ 2026 while (hw->mac.ops.set_vfta(hw, vid, 0, TRUE, FALSE)) { 2027 if (++retry > 5) 2028 break; 2029 } 2030 } 2031 } 2032 } /* ixv_setup_vlan_support */ 2033 2034 #if 0 /* XXX Badly need to overhaul vlan(4) on NetBSD. */ 2035 /************************************************************************ 2036 * ixv_register_vlan 2037 * 2038 * Run via a vlan config EVENT, it enables us to use the 2039 * HW Filter table since we can get the vlan id. This just 2040 * creates the entry in the soft version of the VFTA, init 2041 * will repopulate the real table. 2042 ************************************************************************/ 2043 static void 2044 ixv_register_vlan(void *arg, struct ifnet *ifp, u16 vtag) 2045 { 2046 struct adapter *adapter = ifp->if_softc; 2047 u16 index, bit; 2048 2049 if (ifp->if_softc != arg) /* Not our event */ 2050 return; 2051 2052 if ((vtag == 0) || (vtag > 4095)) /* Invalid */ 2053 return; 2054 2055 IXGBE_CORE_LOCK(adapter); 2056 index = (vtag >> 5) & 0x7F; 2057 bit = vtag & 0x1F; 2058 adapter->shadow_vfta[index] |= (1 << bit); 2059 /* Re-init to load the changes */ 2060 ixv_init_locked(adapter); 2061 IXGBE_CORE_UNLOCK(adapter); 2062 } /* ixv_register_vlan */ 2063 2064 /************************************************************************ 2065 * ixv_unregister_vlan 2066 * 2067 * Run via a vlan unconfig EVENT, remove our entry 2068 * in the soft vfta. 2069 ************************************************************************/ 2070 static void 2071 ixv_unregister_vlan(void *arg, struct ifnet *ifp, u16 vtag) 2072 { 2073 struct adapter *adapter = ifp->if_softc; 2074 u16 index, bit; 2075 2076 if (ifp->if_softc != arg) 2077 return; 2078 2079 if ((vtag == 0) || (vtag > 4095)) /* Invalid */ 2080 return; 2081 2082 IXGBE_CORE_LOCK(adapter); 2083 index = (vtag >> 5) & 0x7F; 2084 bit = vtag & 0x1F; 2085 adapter->shadow_vfta[index] &= ~(1 << bit); 2086 /* Re-init to load the changes */ 2087 ixv_init_locked(adapter); 2088 IXGBE_CORE_UNLOCK(adapter); 2089 } /* ixv_unregister_vlan */ 2090 #endif 2091 2092 /************************************************************************ 2093 * ixv_enable_intr 2094 ************************************************************************/ 2095 static void 2096 ixv_enable_intr(struct adapter *adapter) 2097 { 2098 struct ixgbe_hw *hw = &adapter->hw; 2099 struct ix_queue *que = adapter->queues; 2100 u32 mask; 2101 int i; 2102 2103 /* For VTEIAC */ 2104 mask = (1 << adapter->vector); 2105 for (i = 0; i < adapter->num_queues; i++, que++) 2106 mask |= (1 << que->msix); 2107 IXGBE_WRITE_REG(hw, IXGBE_VTEIAC, mask); 2108 2109 /* For VTEIMS */ 2110 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, (1 << adapter->vector)); 2111 que = adapter->queues; 2112 for (i = 0; i < adapter->num_queues; i++, que++) 2113 ixv_enable_queue(adapter, que->msix); 2114 2115 IXGBE_WRITE_FLUSH(hw); 2116 } /* ixv_enable_intr */ 2117 2118 /************************************************************************ 2119 * ixv_disable_intr 2120 ************************************************************************/ 2121 static void 2122 ixv_disable_intr(struct adapter *adapter) 2123 { 2124 struct ix_queue *que = adapter->queues; 2125 2126 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEIAC, 0); 2127 2128 /* disable interrupts other than queues */ 2129 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEIMC, adapter->vector); 2130 2131 for (int i = 0; i < adapter->num_queues; i++, que++) 2132 ixv_disable_queue(adapter, que->msix); 2133 2134 IXGBE_WRITE_FLUSH(&adapter->hw); 2135 } /* ixv_disable_intr */ 2136 2137 /************************************************************************ 2138 * ixv_set_ivar 2139 * 2140 * Setup the correct IVAR register for a particular MSI-X interrupt 2141 * - entry is the register array entry 2142 * - vector is the MSI-X vector for this queue 2143 * - type is RX/TX/MISC 2144 ************************************************************************/ 2145 static void 2146 ixv_set_ivar(struct adapter *adapter, u8 entry, u8 vector, s8 type) 2147 { 2148 struct ixgbe_hw *hw = &adapter->hw; 2149 u32 ivar, index; 2150 2151 vector |= IXGBE_IVAR_ALLOC_VAL; 2152 2153 if (type == -1) { /* MISC IVAR */ 2154 ivar = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC); 2155 ivar &= ~0xFF; 2156 ivar |= vector; 2157 IXGBE_WRITE_REG(hw, IXGBE_VTIVAR_MISC, ivar); 2158 } else { /* RX/TX IVARS */ 2159 index = (16 * (entry & 1)) + (8 * type); 2160 ivar = IXGBE_READ_REG(hw, IXGBE_VTIVAR(entry >> 1)); 2161 ivar &= ~(0xFF << index); 2162 ivar |= (vector << index); 2163 IXGBE_WRITE_REG(hw, IXGBE_VTIVAR(entry >> 1), ivar); 2164 } 2165 } /* ixv_set_ivar */ 2166 2167 /************************************************************************ 2168 * ixv_configure_ivars 2169 ************************************************************************/ 2170 static void 2171 ixv_configure_ivars(struct adapter *adapter) 2172 { 2173 struct ix_queue *que = adapter->queues; 2174 2175 /* XXX We should sync EITR value calculation with ixgbe.c? */ 2176 2177 for (int i = 0; i < adapter->num_queues; i++, que++) { 2178 /* First the RX queue entry */ 2179 ixv_set_ivar(adapter, i, que->msix, 0); 2180 /* ... and the TX */ 2181 ixv_set_ivar(adapter, i, que->msix, 1); 2182 /* Set an initial value in EITR */ 2183 ixv_eitr_write(adapter, que->msix, IXGBE_EITR_DEFAULT); 2184 } 2185 2186 /* For the mailbox interrupt */ 2187 ixv_set_ivar(adapter, 1, adapter->vector, -1); 2188 } /* ixv_configure_ivars */ 2189 2190 2191 /************************************************************************ 2192 * ixv_save_stats 2193 * 2194 * The VF stats registers never have a truly virgin 2195 * starting point, so this routine tries to make an 2196 * artificial one, marking ground zero on attach as 2197 * it were. 2198 ************************************************************************/ 2199 static void 2200 ixv_save_stats(struct adapter *adapter) 2201 { 2202 struct ixgbevf_hw_stats *stats = &adapter->stats.vf; 2203 2204 if (stats->vfgprc.ev_count || stats->vfgptc.ev_count) { 2205 stats->saved_reset_vfgprc += 2206 stats->vfgprc.ev_count - stats->base_vfgprc; 2207 stats->saved_reset_vfgptc += 2208 stats->vfgptc.ev_count - stats->base_vfgptc; 2209 stats->saved_reset_vfgorc += 2210 stats->vfgorc.ev_count - stats->base_vfgorc; 2211 stats->saved_reset_vfgotc += 2212 stats->vfgotc.ev_count - stats->base_vfgotc; 2213 stats->saved_reset_vfmprc += 2214 stats->vfmprc.ev_count - stats->base_vfmprc; 2215 } 2216 } /* ixv_save_stats */ 2217 2218 /************************************************************************ 2219 * ixv_init_stats 2220 ************************************************************************/ 2221 static void 2222 ixv_init_stats(struct adapter *adapter) 2223 { 2224 struct ixgbe_hw *hw = &adapter->hw; 2225 2226 adapter->stats.vf.last_vfgprc = IXGBE_READ_REG(hw, IXGBE_VFGPRC); 2227 adapter->stats.vf.last_vfgorc = IXGBE_READ_REG(hw, IXGBE_VFGORC_LSB); 2228 adapter->stats.vf.last_vfgorc |= 2229 (((u64)(IXGBE_READ_REG(hw, IXGBE_VFGORC_MSB))) << 32); 2230 2231 adapter->stats.vf.last_vfgptc = IXGBE_READ_REG(hw, IXGBE_VFGPTC); 2232 adapter->stats.vf.last_vfgotc = IXGBE_READ_REG(hw, IXGBE_VFGOTC_LSB); 2233 adapter->stats.vf.last_vfgotc |= 2234 (((u64)(IXGBE_READ_REG(hw, IXGBE_VFGOTC_MSB))) << 32); 2235 2236 adapter->stats.vf.last_vfmprc = IXGBE_READ_REG(hw, IXGBE_VFMPRC); 2237 2238 adapter->stats.vf.base_vfgprc = adapter->stats.vf.last_vfgprc; 2239 adapter->stats.vf.base_vfgorc = adapter->stats.vf.last_vfgorc; 2240 adapter->stats.vf.base_vfgptc = adapter->stats.vf.last_vfgptc; 2241 adapter->stats.vf.base_vfgotc = adapter->stats.vf.last_vfgotc; 2242 adapter->stats.vf.base_vfmprc = adapter->stats.vf.last_vfmprc; 2243 } /* ixv_init_stats */ 2244 2245 #define UPDATE_STAT_32(reg, last, count) \ 2246 { \ 2247 u32 current = IXGBE_READ_REG(hw, (reg)); \ 2248 if (current < (last)) \ 2249 count.ev_count += 0x100000000LL; \ 2250 (last) = current; \ 2251 count.ev_count &= 0xFFFFFFFF00000000LL; \ 2252 count.ev_count |= current; \ 2253 } 2254 2255 #define UPDATE_STAT_36(lsb, msb, last, count) \ 2256 { \ 2257 u64 cur_lsb = IXGBE_READ_REG(hw, (lsb)); \ 2258 u64 cur_msb = IXGBE_READ_REG(hw, (msb)); \ 2259 u64 current = ((cur_msb << 32) | cur_lsb); \ 2260 if (current < (last)) \ 2261 count.ev_count += 0x1000000000LL; \ 2262 (last) = current; \ 2263 count.ev_count &= 0xFFFFFFF000000000LL; \ 2264 count.ev_count |= current; \ 2265 } 2266 2267 /************************************************************************ 2268 * ixv_update_stats - Update the board statistics counters. 2269 ************************************************************************/ 2270 void 2271 ixv_update_stats(struct adapter *adapter) 2272 { 2273 struct ixgbe_hw *hw = &adapter->hw; 2274 struct ixgbevf_hw_stats *stats = &adapter->stats.vf; 2275 2276 UPDATE_STAT_32(IXGBE_VFGPRC, stats->last_vfgprc, stats->vfgprc); 2277 UPDATE_STAT_32(IXGBE_VFGPTC, stats->last_vfgptc, stats->vfgptc); 2278 UPDATE_STAT_36(IXGBE_VFGORC_LSB, IXGBE_VFGORC_MSB, stats->last_vfgorc, 2279 stats->vfgorc); 2280 UPDATE_STAT_36(IXGBE_VFGOTC_LSB, IXGBE_VFGOTC_MSB, stats->last_vfgotc, 2281 stats->vfgotc); 2282 UPDATE_STAT_32(IXGBE_VFMPRC, stats->last_vfmprc, stats->vfmprc); 2283 2284 /* Fill out the OS statistics structure */ 2285 /* 2286 * NetBSD: Don't override if_{i|o}{packets|bytes|mcasts} with 2287 * adapter->stats counters. It's required to make ifconfig -z 2288 * (SOICZIFDATA) work. 2289 */ 2290 } /* ixv_update_stats */ 2291 2292 /************************************************************************ 2293 * ixv_sysctl_interrupt_rate_handler 2294 ************************************************************************/ 2295 static int 2296 ixv_sysctl_interrupt_rate_handler(SYSCTLFN_ARGS) 2297 { 2298 struct sysctlnode node = *rnode; 2299 struct ix_queue *que = (struct ix_queue *)node.sysctl_data; 2300 struct adapter *adapter = que->adapter; 2301 uint32_t reg, usec, rate; 2302 int error; 2303 2304 if (que == NULL) 2305 return 0; 2306 reg = IXGBE_READ_REG(&que->adapter->hw, IXGBE_VTEITR(que->msix)); 2307 usec = ((reg & 0x0FF8) >> 3); 2308 if (usec > 0) 2309 rate = 500000 / usec; 2310 else 2311 rate = 0; 2312 node.sysctl_data = &rate; 2313 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2314 if (error || newp == NULL) 2315 return error; 2316 reg &= ~0xfff; /* default, no limitation */ 2317 if (rate > 0 && rate < 500000) { 2318 if (rate < 1000) 2319 rate = 1000; 2320 reg |= ((4000000/rate) & 0xff8); 2321 /* 2322 * When RSC is used, ITR interval must be larger than 2323 * RSC_DELAY. Currently, we use 2us for RSC_DELAY. 2324 * The minimum value is always greater than 2us on 100M 2325 * (and 10M?(not documented)), but it's not on 1G and higher. 2326 */ 2327 if ((adapter->link_speed != IXGBE_LINK_SPEED_100_FULL) 2328 && (adapter->link_speed != IXGBE_LINK_SPEED_10_FULL)) { 2329 if ((adapter->num_queues > 1) 2330 && (reg < IXGBE_MIN_RSC_EITR_10G1G)) 2331 return EINVAL; 2332 } 2333 ixv_max_interrupt_rate = rate; 2334 } else 2335 ixv_max_interrupt_rate = 0; 2336 ixv_eitr_write(adapter, que->msix, reg); 2337 2338 return (0); 2339 } /* ixv_sysctl_interrupt_rate_handler */ 2340 2341 const struct sysctlnode * 2342 ixv_sysctl_instance(struct adapter *adapter) 2343 { 2344 const char *dvname; 2345 struct sysctllog **log; 2346 int rc; 2347 const struct sysctlnode *rnode; 2348 2349 log = &adapter->sysctllog; 2350 dvname = device_xname(adapter->dev); 2351 2352 if ((rc = sysctl_createv(log, 0, NULL, &rnode, 2353 0, CTLTYPE_NODE, dvname, 2354 SYSCTL_DESCR("ixv information and settings"), 2355 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2356 goto err; 2357 2358 return rnode; 2359 err: 2360 printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc); 2361 return NULL; 2362 } 2363 2364 static void 2365 ixv_add_device_sysctls(struct adapter *adapter) 2366 { 2367 struct sysctllog **log; 2368 const struct sysctlnode *rnode, *cnode; 2369 device_t dev; 2370 2371 dev = adapter->dev; 2372 log = &adapter->sysctllog; 2373 2374 if ((rnode = ixv_sysctl_instance(adapter)) == NULL) { 2375 aprint_error_dev(dev, "could not create sysctl root\n"); 2376 return; 2377 } 2378 2379 if (sysctl_createv(log, 0, &rnode, &cnode, 2380 CTLFLAG_READWRITE, CTLTYPE_INT, 2381 "debug", SYSCTL_DESCR("Debug Info"), 2382 ixv_sysctl_debug, 0, (void *)adapter, 0, CTL_CREATE, CTL_EOL) != 0) 2383 aprint_error_dev(dev, "could not create sysctl\n"); 2384 2385 if (sysctl_createv(log, 0, &rnode, &cnode, 2386 CTLFLAG_READWRITE, CTLTYPE_BOOL, 2387 "enable_aim", SYSCTL_DESCR("Interrupt Moderation"), 2388 NULL, 0, &adapter->enable_aim, 0, CTL_CREATE, CTL_EOL) != 0) 2389 aprint_error_dev(dev, "could not create sysctl\n"); 2390 2391 if (sysctl_createv(log, 0, &rnode, &cnode, 2392 CTLFLAG_READWRITE, CTLTYPE_BOOL, 2393 "txrx_workqueue", SYSCTL_DESCR("Use workqueue for packet processing"), 2394 NULL, 0, &adapter->txrx_use_workqueue, 0, CTL_CREATE, CTL_EOL) != 0) 2395 aprint_error_dev(dev, "could not create sysctl\n"); 2396 } 2397 2398 /************************************************************************ 2399 * ixv_add_stats_sysctls - Add statistic sysctls for the VF. 2400 ************************************************************************/ 2401 static void 2402 ixv_add_stats_sysctls(struct adapter *adapter) 2403 { 2404 device_t dev = adapter->dev; 2405 struct tx_ring *txr = adapter->tx_rings; 2406 struct rx_ring *rxr = adapter->rx_rings; 2407 struct ixgbevf_hw_stats *stats = &adapter->stats.vf; 2408 struct ixgbe_hw *hw = &adapter->hw; 2409 const struct sysctlnode *rnode, *cnode; 2410 struct sysctllog **log = &adapter->sysctllog; 2411 const char *xname = device_xname(dev); 2412 2413 /* Driver Statistics */ 2414 evcnt_attach_dynamic(&adapter->efbig_tx_dma_setup, EVCNT_TYPE_MISC, 2415 NULL, xname, "Driver tx dma soft fail EFBIG"); 2416 evcnt_attach_dynamic(&adapter->mbuf_defrag_failed, EVCNT_TYPE_MISC, 2417 NULL, xname, "m_defrag() failed"); 2418 evcnt_attach_dynamic(&adapter->efbig2_tx_dma_setup, EVCNT_TYPE_MISC, 2419 NULL, xname, "Driver tx dma hard fail EFBIG"); 2420 evcnt_attach_dynamic(&adapter->einval_tx_dma_setup, EVCNT_TYPE_MISC, 2421 NULL, xname, "Driver tx dma hard fail EINVAL"); 2422 evcnt_attach_dynamic(&adapter->other_tx_dma_setup, EVCNT_TYPE_MISC, 2423 NULL, xname, "Driver tx dma hard fail other"); 2424 evcnt_attach_dynamic(&adapter->eagain_tx_dma_setup, EVCNT_TYPE_MISC, 2425 NULL, xname, "Driver tx dma soft fail EAGAIN"); 2426 evcnt_attach_dynamic(&adapter->enomem_tx_dma_setup, EVCNT_TYPE_MISC, 2427 NULL, xname, "Driver tx dma soft fail ENOMEM"); 2428 evcnt_attach_dynamic(&adapter->watchdog_events, EVCNT_TYPE_MISC, 2429 NULL, xname, "Watchdog timeouts"); 2430 evcnt_attach_dynamic(&adapter->tso_err, EVCNT_TYPE_MISC, 2431 NULL, xname, "TSO errors"); 2432 evcnt_attach_dynamic(&adapter->link_irq, EVCNT_TYPE_INTR, 2433 NULL, xname, "Link MSI-X IRQ Handled"); 2434 2435 for (int i = 0; i < adapter->num_queues; i++, rxr++, txr++) { 2436 snprintf(adapter->queues[i].evnamebuf, 2437 sizeof(adapter->queues[i].evnamebuf), "%s q%d", 2438 xname, i); 2439 snprintf(adapter->queues[i].namebuf, 2440 sizeof(adapter->queues[i].namebuf), "q%d", i); 2441 2442 if ((rnode = ixv_sysctl_instance(adapter)) == NULL) { 2443 aprint_error_dev(dev, "could not create sysctl root\n"); 2444 break; 2445 } 2446 2447 if (sysctl_createv(log, 0, &rnode, &rnode, 2448 0, CTLTYPE_NODE, 2449 adapter->queues[i].namebuf, SYSCTL_DESCR("Queue Name"), 2450 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL) != 0) 2451 break; 2452 2453 if (sysctl_createv(log, 0, &rnode, &cnode, 2454 CTLFLAG_READWRITE, CTLTYPE_INT, 2455 "interrupt_rate", SYSCTL_DESCR("Interrupt Rate"), 2456 ixv_sysctl_interrupt_rate_handler, 0, 2457 (void *)&adapter->queues[i], 0, CTL_CREATE, CTL_EOL) != 0) 2458 break; 2459 2460 if (sysctl_createv(log, 0, &rnode, &cnode, 2461 CTLFLAG_READONLY, CTLTYPE_INT, 2462 "txd_head", SYSCTL_DESCR("Transmit Descriptor Head"), 2463 ixv_sysctl_tdh_handler, 0, (void *)txr, 2464 0, CTL_CREATE, CTL_EOL) != 0) 2465 break; 2466 2467 if (sysctl_createv(log, 0, &rnode, &cnode, 2468 CTLFLAG_READONLY, CTLTYPE_INT, 2469 "txd_tail", SYSCTL_DESCR("Transmit Descriptor Tail"), 2470 ixv_sysctl_tdt_handler, 0, (void *)txr, 2471 0, CTL_CREATE, CTL_EOL) != 0) 2472 break; 2473 2474 evcnt_attach_dynamic(&adapter->queues[i].irqs, EVCNT_TYPE_INTR, 2475 NULL, adapter->queues[i].evnamebuf, "IRQs on queue"); 2476 evcnt_attach_dynamic(&adapter->queues[i].handleq, 2477 EVCNT_TYPE_MISC, NULL, adapter->queues[i].evnamebuf, 2478 "Handled queue in softint"); 2479 evcnt_attach_dynamic(&adapter->queues[i].req, EVCNT_TYPE_MISC, 2480 NULL, adapter->queues[i].evnamebuf, "Requeued in softint"); 2481 evcnt_attach_dynamic(&txr->tso_tx, EVCNT_TYPE_MISC, 2482 NULL, adapter->queues[i].evnamebuf, "TSO"); 2483 evcnt_attach_dynamic(&txr->no_desc_avail, EVCNT_TYPE_MISC, 2484 NULL, adapter->queues[i].evnamebuf, 2485 "Queue No Descriptor Available"); 2486 evcnt_attach_dynamic(&txr->total_packets, EVCNT_TYPE_MISC, 2487 NULL, adapter->queues[i].evnamebuf, 2488 "Queue Packets Transmitted"); 2489 #ifndef IXGBE_LEGACY_TX 2490 evcnt_attach_dynamic(&txr->pcq_drops, EVCNT_TYPE_MISC, 2491 NULL, adapter->queues[i].evnamebuf, 2492 "Packets dropped in pcq"); 2493 #endif 2494 2495 #ifdef LRO 2496 struct lro_ctrl *lro = &rxr->lro; 2497 #endif /* LRO */ 2498 2499 if (sysctl_createv(log, 0, &rnode, &cnode, 2500 CTLFLAG_READONLY, 2501 CTLTYPE_INT, 2502 "rxd_nxck", SYSCTL_DESCR("Receive Descriptor next to check"), 2503 ixv_sysctl_next_to_check_handler, 0, (void *)rxr, 0, 2504 CTL_CREATE, CTL_EOL) != 0) 2505 break; 2506 2507 if (sysctl_createv(log, 0, &rnode, &cnode, 2508 CTLFLAG_READONLY, 2509 CTLTYPE_INT, 2510 "rxd_head", SYSCTL_DESCR("Receive Descriptor Head"), 2511 ixv_sysctl_rdh_handler, 0, (void *)rxr, 0, 2512 CTL_CREATE, CTL_EOL) != 0) 2513 break; 2514 2515 if (sysctl_createv(log, 0, &rnode, &cnode, 2516 CTLFLAG_READONLY, 2517 CTLTYPE_INT, 2518 "rxd_tail", SYSCTL_DESCR("Receive Descriptor Tail"), 2519 ixv_sysctl_rdt_handler, 0, (void *)rxr, 0, 2520 CTL_CREATE, CTL_EOL) != 0) 2521 break; 2522 2523 evcnt_attach_dynamic(&rxr->rx_packets, EVCNT_TYPE_MISC, 2524 NULL, adapter->queues[i].evnamebuf, "Queue Packets Received"); 2525 evcnt_attach_dynamic(&rxr->rx_bytes, EVCNT_TYPE_MISC, 2526 NULL, adapter->queues[i].evnamebuf, "Queue Bytes Received"); 2527 evcnt_attach_dynamic(&rxr->rx_copies, EVCNT_TYPE_MISC, 2528 NULL, adapter->queues[i].evnamebuf, "Copied RX Frames"); 2529 evcnt_attach_dynamic(&rxr->no_jmbuf, EVCNT_TYPE_MISC, 2530 NULL, adapter->queues[i].evnamebuf, "Rx no jumbo mbuf"); 2531 evcnt_attach_dynamic(&rxr->rx_discarded, EVCNT_TYPE_MISC, 2532 NULL, adapter->queues[i].evnamebuf, "Rx discarded"); 2533 #ifdef LRO 2534 SYSCTL_ADD_INT(ctx, queue_list, OID_AUTO, "lro_queued", 2535 CTLFLAG_RD, &lro->lro_queued, 0, 2536 "LRO Queued"); 2537 SYSCTL_ADD_INT(ctx, queue_list, OID_AUTO, "lro_flushed", 2538 CTLFLAG_RD, &lro->lro_flushed, 0, 2539 "LRO Flushed"); 2540 #endif /* LRO */ 2541 } 2542 2543 /* MAC stats get their own sub node */ 2544 2545 snprintf(stats->namebuf, 2546 sizeof(stats->namebuf), "%s MAC Statistics", xname); 2547 2548 evcnt_attach_dynamic(&stats->ipcs, EVCNT_TYPE_MISC, NULL, 2549 stats->namebuf, "rx csum offload - IP"); 2550 evcnt_attach_dynamic(&stats->l4cs, EVCNT_TYPE_MISC, NULL, 2551 stats->namebuf, "rx csum offload - L4"); 2552 evcnt_attach_dynamic(&stats->ipcs_bad, EVCNT_TYPE_MISC, NULL, 2553 stats->namebuf, "rx csum offload - IP bad"); 2554 evcnt_attach_dynamic(&stats->l4cs_bad, EVCNT_TYPE_MISC, NULL, 2555 stats->namebuf, "rx csum offload - L4 bad"); 2556 2557 /* Packet Reception Stats */ 2558 evcnt_attach_dynamic(&stats->vfgprc, EVCNT_TYPE_MISC, NULL, 2559 xname, "Good Packets Received"); 2560 evcnt_attach_dynamic(&stats->vfgorc, EVCNT_TYPE_MISC, NULL, 2561 xname, "Good Octets Received"); 2562 evcnt_attach_dynamic(&stats->vfmprc, EVCNT_TYPE_MISC, NULL, 2563 xname, "Multicast Packets Received"); 2564 evcnt_attach_dynamic(&stats->vfgptc, EVCNT_TYPE_MISC, NULL, 2565 xname, "Good Packets Transmitted"); 2566 evcnt_attach_dynamic(&stats->vfgotc, EVCNT_TYPE_MISC, NULL, 2567 xname, "Good Octets Transmitted"); 2568 2569 /* Mailbox Stats */ 2570 evcnt_attach_dynamic(&hw->mbx.stats.msgs_tx, EVCNT_TYPE_MISC, NULL, 2571 xname, "message TXs"); 2572 evcnt_attach_dynamic(&hw->mbx.stats.msgs_rx, EVCNT_TYPE_MISC, NULL, 2573 xname, "message RXs"); 2574 evcnt_attach_dynamic(&hw->mbx.stats.acks, EVCNT_TYPE_MISC, NULL, 2575 xname, "ACKs"); 2576 evcnt_attach_dynamic(&hw->mbx.stats.reqs, EVCNT_TYPE_MISC, NULL, 2577 xname, "REQs"); 2578 evcnt_attach_dynamic(&hw->mbx.stats.rsts, EVCNT_TYPE_MISC, NULL, 2579 xname, "RSTs"); 2580 2581 } /* ixv_add_stats_sysctls */ 2582 2583 /************************************************************************ 2584 * ixv_set_sysctl_value 2585 ************************************************************************/ 2586 static void 2587 ixv_set_sysctl_value(struct adapter *adapter, const char *name, 2588 const char *description, int *limit, int value) 2589 { 2590 device_t dev = adapter->dev; 2591 struct sysctllog **log; 2592 const struct sysctlnode *rnode, *cnode; 2593 2594 log = &adapter->sysctllog; 2595 if ((rnode = ixv_sysctl_instance(adapter)) == NULL) { 2596 aprint_error_dev(dev, "could not create sysctl root\n"); 2597 return; 2598 } 2599 if (sysctl_createv(log, 0, &rnode, &cnode, 2600 CTLFLAG_READWRITE, CTLTYPE_INT, 2601 name, SYSCTL_DESCR(description), 2602 NULL, 0, limit, 0, CTL_CREATE, CTL_EOL) != 0) 2603 aprint_error_dev(dev, "could not create sysctl\n"); 2604 *limit = value; 2605 } /* ixv_set_sysctl_value */ 2606 2607 /************************************************************************ 2608 * ixv_print_debug_info 2609 * 2610 * Called only when em_display_debug_stats is enabled. 2611 * Provides a way to take a look at important statistics 2612 * maintained by the driver and hardware. 2613 ************************************************************************/ 2614 static void 2615 ixv_print_debug_info(struct adapter *adapter) 2616 { 2617 device_t dev = adapter->dev; 2618 struct ixgbe_hw *hw = &adapter->hw; 2619 struct ix_queue *que = adapter->queues; 2620 struct rx_ring *rxr; 2621 struct tx_ring *txr; 2622 #ifdef LRO 2623 struct lro_ctrl *lro; 2624 #endif /* LRO */ 2625 2626 device_printf(dev, "Error Byte Count = %u \n", 2627 IXGBE_READ_REG(hw, IXGBE_ERRBC)); 2628 2629 for (int i = 0; i < adapter->num_queues; i++, que++) { 2630 txr = que->txr; 2631 rxr = que->rxr; 2632 #ifdef LRO 2633 lro = &rxr->lro; 2634 #endif /* LRO */ 2635 device_printf(dev, "QUE(%d) IRQs Handled: %lu\n", 2636 que->msix, (long)que->irqs.ev_count); 2637 device_printf(dev, "RX(%d) Packets Received: %lld\n", 2638 rxr->me, (long long)rxr->rx_packets.ev_count); 2639 device_printf(dev, "RX(%d) Bytes Received: %lu\n", 2640 rxr->me, (long)rxr->rx_bytes.ev_count); 2641 #ifdef LRO 2642 device_printf(dev, "RX(%d) LRO Queued= %lld\n", 2643 rxr->me, (long long)lro->lro_queued); 2644 device_printf(dev, "RX(%d) LRO Flushed= %lld\n", 2645 rxr->me, (long long)lro->lro_flushed); 2646 #endif /* LRO */ 2647 device_printf(dev, "TX(%d) Packets Sent: %lu\n", 2648 txr->me, (long)txr->total_packets.ev_count); 2649 device_printf(dev, "TX(%d) NO Desc Avail: %lu\n", 2650 txr->me, (long)txr->no_desc_avail.ev_count); 2651 } 2652 2653 device_printf(dev, "MBX IRQ Handled: %lu\n", 2654 (long)adapter->link_irq.ev_count); 2655 } /* ixv_print_debug_info */ 2656 2657 /************************************************************************ 2658 * ixv_sysctl_debug 2659 ************************************************************************/ 2660 static int 2661 ixv_sysctl_debug(SYSCTLFN_ARGS) 2662 { 2663 struct sysctlnode node = *rnode; 2664 struct adapter *adapter = (struct adapter *)node.sysctl_data; 2665 int error, result; 2666 2667 node.sysctl_data = &result; 2668 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2669 2670 if (error || newp == NULL) 2671 return error; 2672 2673 if (result == 1) 2674 ixv_print_debug_info(adapter); 2675 2676 return 0; 2677 } /* ixv_sysctl_debug */ 2678 2679 /************************************************************************ 2680 * ixv_init_device_features 2681 ************************************************************************/ 2682 static void 2683 ixv_init_device_features(struct adapter *adapter) 2684 { 2685 adapter->feat_cap = IXGBE_FEATURE_NETMAP 2686 | IXGBE_FEATURE_VF 2687 | IXGBE_FEATURE_RSS 2688 | IXGBE_FEATURE_LEGACY_TX; 2689 2690 /* A tad short on feature flags for VFs, atm. */ 2691 switch (adapter->hw.mac.type) { 2692 case ixgbe_mac_82599_vf: 2693 break; 2694 case ixgbe_mac_X540_vf: 2695 break; 2696 case ixgbe_mac_X550_vf: 2697 case ixgbe_mac_X550EM_x_vf: 2698 case ixgbe_mac_X550EM_a_vf: 2699 adapter->feat_cap |= IXGBE_FEATURE_NEEDS_CTXD; 2700 break; 2701 default: 2702 break; 2703 } 2704 2705 /* Enabled by default... */ 2706 /* Is a virtual function (VF) */ 2707 if (adapter->feat_cap & IXGBE_FEATURE_VF) 2708 adapter->feat_en |= IXGBE_FEATURE_VF; 2709 /* Netmap */ 2710 if (adapter->feat_cap & IXGBE_FEATURE_NETMAP) 2711 adapter->feat_en |= IXGBE_FEATURE_NETMAP; 2712 /* Receive-Side Scaling (RSS) */ 2713 if (adapter->feat_cap & IXGBE_FEATURE_RSS) 2714 adapter->feat_en |= IXGBE_FEATURE_RSS; 2715 /* Needs advanced context descriptor regardless of offloads req'd */ 2716 if (adapter->feat_cap & IXGBE_FEATURE_NEEDS_CTXD) 2717 adapter->feat_en |= IXGBE_FEATURE_NEEDS_CTXD; 2718 2719 /* Enabled via sysctl... */ 2720 /* Legacy (single queue) transmit */ 2721 if ((adapter->feat_cap & IXGBE_FEATURE_LEGACY_TX) && 2722 ixv_enable_legacy_tx) 2723 adapter->feat_en |= IXGBE_FEATURE_LEGACY_TX; 2724 } /* ixv_init_device_features */ 2725 2726 /************************************************************************ 2727 * ixv_shutdown - Shutdown entry point 2728 ************************************************************************/ 2729 #if 0 /* XXX NetBSD ought to register something like this through pmf(9) */ 2730 static int 2731 ixv_shutdown(device_t dev) 2732 { 2733 struct adapter *adapter = device_private(dev); 2734 IXGBE_CORE_LOCK(adapter); 2735 ixv_stop(adapter); 2736 IXGBE_CORE_UNLOCK(adapter); 2737 2738 return (0); 2739 } /* ixv_shutdown */ 2740 #endif 2741 2742 static int 2743 ixv_ifflags_cb(struct ethercom *ec) 2744 { 2745 struct ifnet *ifp = &ec->ec_if; 2746 struct adapter *adapter = ifp->if_softc; 2747 int change, rc = 0; 2748 2749 IXGBE_CORE_LOCK(adapter); 2750 2751 change = ifp->if_flags ^ adapter->if_flags; 2752 if (change != 0) 2753 adapter->if_flags = ifp->if_flags; 2754 2755 if ((change & ~(IFF_CANTCHANGE | IFF_DEBUG)) != 0) 2756 rc = ENETRESET; 2757 2758 /* Set up VLAN support and filter */ 2759 ixv_setup_vlan_support(adapter); 2760 2761 IXGBE_CORE_UNLOCK(adapter); 2762 2763 return rc; 2764 } 2765 2766 2767 /************************************************************************ 2768 * ixv_ioctl - Ioctl entry point 2769 * 2770 * Called when the user wants to configure the interface. 2771 * 2772 * return 0 on success, positive on failure 2773 ************************************************************************/ 2774 static int 2775 ixv_ioctl(struct ifnet *ifp, u_long command, void *data) 2776 { 2777 struct adapter *adapter = ifp->if_softc; 2778 struct ifcapreq *ifcr = data; 2779 struct ifreq *ifr = data; 2780 int error = 0; 2781 int l4csum_en; 2782 const int l4csum = IFCAP_CSUM_TCPv4_Rx | IFCAP_CSUM_UDPv4_Rx | 2783 IFCAP_CSUM_TCPv6_Rx | IFCAP_CSUM_UDPv6_Rx; 2784 2785 switch (command) { 2786 case SIOCSIFFLAGS: 2787 IOCTL_DEBUGOUT("ioctl: SIOCSIFFLAGS (Set Interface Flags)"); 2788 break; 2789 case SIOCADDMULTI: 2790 case SIOCDELMULTI: 2791 IOCTL_DEBUGOUT("ioctl: SIOC(ADD|DEL)MULTI"); 2792 break; 2793 case SIOCSIFMEDIA: 2794 case SIOCGIFMEDIA: 2795 IOCTL_DEBUGOUT("ioctl: SIOCxIFMEDIA (Get/Set Interface Media)"); 2796 break; 2797 case SIOCSIFCAP: 2798 IOCTL_DEBUGOUT("ioctl: SIOCSIFCAP (Set Capabilities)"); 2799 break; 2800 case SIOCSIFMTU: 2801 IOCTL_DEBUGOUT("ioctl: SIOCSIFMTU (Set Interface MTU)"); 2802 break; 2803 default: 2804 IOCTL_DEBUGOUT1("ioctl: UNKNOWN (0x%X)", (int)command); 2805 break; 2806 } 2807 2808 switch (command) { 2809 case SIOCSIFMEDIA: 2810 case SIOCGIFMEDIA: 2811 return ifmedia_ioctl(ifp, ifr, &adapter->media, command); 2812 case SIOCSIFCAP: 2813 /* Layer-4 Rx checksum offload has to be turned on and 2814 * off as a unit. 2815 */ 2816 l4csum_en = ifcr->ifcr_capenable & l4csum; 2817 if (l4csum_en != l4csum && l4csum_en != 0) 2818 return EINVAL; 2819 /*FALLTHROUGH*/ 2820 case SIOCADDMULTI: 2821 case SIOCDELMULTI: 2822 case SIOCSIFFLAGS: 2823 case SIOCSIFMTU: 2824 default: 2825 if ((error = ether_ioctl(ifp, command, data)) != ENETRESET) 2826 return error; 2827 if ((ifp->if_flags & IFF_RUNNING) == 0) 2828 ; 2829 else if (command == SIOCSIFCAP || command == SIOCSIFMTU) { 2830 IXGBE_CORE_LOCK(adapter); 2831 ixv_init_locked(adapter); 2832 IXGBE_CORE_UNLOCK(adapter); 2833 } else if (command == SIOCADDMULTI || command == SIOCDELMULTI) { 2834 /* 2835 * Multicast list has changed; set the hardware filter 2836 * accordingly. 2837 */ 2838 IXGBE_CORE_LOCK(adapter); 2839 ixv_disable_intr(adapter); 2840 ixv_set_multi(adapter); 2841 ixv_enable_intr(adapter); 2842 IXGBE_CORE_UNLOCK(adapter); 2843 } 2844 return 0; 2845 } 2846 } /* ixv_ioctl */ 2847 2848 /************************************************************************ 2849 * ixv_init 2850 ************************************************************************/ 2851 static int 2852 ixv_init(struct ifnet *ifp) 2853 { 2854 struct adapter *adapter = ifp->if_softc; 2855 2856 IXGBE_CORE_LOCK(adapter); 2857 ixv_init_locked(adapter); 2858 IXGBE_CORE_UNLOCK(adapter); 2859 2860 return 0; 2861 } /* ixv_init */ 2862 2863 /************************************************************************ 2864 * ixv_handle_que 2865 ************************************************************************/ 2866 static void 2867 ixv_handle_que(void *context) 2868 { 2869 struct ix_queue *que = context; 2870 struct adapter *adapter = que->adapter; 2871 struct tx_ring *txr = que->txr; 2872 struct ifnet *ifp = adapter->ifp; 2873 bool more; 2874 2875 que->handleq.ev_count++; 2876 2877 if (ifp->if_flags & IFF_RUNNING) { 2878 more = ixgbe_rxeof(que); 2879 IXGBE_TX_LOCK(txr); 2880 more |= ixgbe_txeof(txr); 2881 if (!(adapter->feat_en & IXGBE_FEATURE_LEGACY_TX)) 2882 if (!ixgbe_mq_ring_empty(ifp, txr->txr_interq)) 2883 ixgbe_mq_start_locked(ifp, txr); 2884 /* Only for queue 0 */ 2885 /* NetBSD still needs this for CBQ */ 2886 if ((&adapter->queues[0] == que) 2887 && (!ixgbe_legacy_ring_empty(ifp, NULL))) 2888 ixgbe_legacy_start_locked(ifp, txr); 2889 IXGBE_TX_UNLOCK(txr); 2890 if (more) { 2891 que->req.ev_count++; 2892 if (adapter->txrx_use_workqueue) { 2893 /* 2894 * "enqueued flag" is not required here 2895 * the same as ixg(4). See ixgbe_msix_que(). 2896 */ 2897 workqueue_enqueue(adapter->que_wq, 2898 &que->wq_cookie, curcpu()); 2899 } else 2900 softint_schedule(que->que_si); 2901 return; 2902 } 2903 } 2904 2905 /* Re-enable this interrupt */ 2906 ixv_enable_queue(adapter, que->msix); 2907 2908 return; 2909 } /* ixv_handle_que */ 2910 2911 /************************************************************************ 2912 * ixv_handle_que_work 2913 ************************************************************************/ 2914 static void 2915 ixv_handle_que_work(struct work *wk, void *context) 2916 { 2917 struct ix_queue *que = container_of(wk, struct ix_queue, wq_cookie); 2918 2919 /* 2920 * "enqueued flag" is not required here the same as ixg(4). 2921 * See ixgbe_msix_que(). 2922 */ 2923 ixv_handle_que(que); 2924 } 2925 2926 /************************************************************************ 2927 * ixv_allocate_msix - Setup MSI-X Interrupt resources and handlers 2928 ************************************************************************/ 2929 static int 2930 ixv_allocate_msix(struct adapter *adapter, const struct pci_attach_args *pa) 2931 { 2932 device_t dev = adapter->dev; 2933 struct ix_queue *que = adapter->queues; 2934 struct tx_ring *txr = adapter->tx_rings; 2935 int error, msix_ctrl, rid, vector = 0; 2936 pci_chipset_tag_t pc; 2937 pcitag_t tag; 2938 char intrbuf[PCI_INTRSTR_LEN]; 2939 char wqname[MAXCOMLEN]; 2940 char intr_xname[32]; 2941 const char *intrstr = NULL; 2942 kcpuset_t *affinity; 2943 int cpu_id = 0; 2944 2945 pc = adapter->osdep.pc; 2946 tag = adapter->osdep.tag; 2947 2948 adapter->osdep.nintrs = adapter->num_queues + 1; 2949 if (pci_msix_alloc_exact(pa, &adapter->osdep.intrs, 2950 adapter->osdep.nintrs) != 0) { 2951 aprint_error_dev(dev, 2952 "failed to allocate MSI-X interrupt\n"); 2953 return (ENXIO); 2954 } 2955 2956 kcpuset_create(&affinity, false); 2957 for (int i = 0; i < adapter->num_queues; i++, vector++, que++, txr++) { 2958 snprintf(intr_xname, sizeof(intr_xname), "%s TXRX%d", 2959 device_xname(dev), i); 2960 intrstr = pci_intr_string(pc, adapter->osdep.intrs[i], intrbuf, 2961 sizeof(intrbuf)); 2962 #ifdef IXGBE_MPSAFE 2963 pci_intr_setattr(pc, &adapter->osdep.intrs[i], PCI_INTR_MPSAFE, 2964 true); 2965 #endif 2966 /* Set the handler function */ 2967 que->res = adapter->osdep.ihs[i] = pci_intr_establish_xname(pc, 2968 adapter->osdep.intrs[i], IPL_NET, ixv_msix_que, que, 2969 intr_xname); 2970 if (que->res == NULL) { 2971 pci_intr_release(pc, adapter->osdep.intrs, 2972 adapter->osdep.nintrs); 2973 aprint_error_dev(dev, 2974 "Failed to register QUE handler\n"); 2975 kcpuset_destroy(affinity); 2976 return (ENXIO); 2977 } 2978 que->msix = vector; 2979 adapter->active_queues |= (u64)(1 << que->msix); 2980 2981 cpu_id = i; 2982 /* Round-robin affinity */ 2983 kcpuset_zero(affinity); 2984 kcpuset_set(affinity, cpu_id % ncpu); 2985 error = interrupt_distribute(adapter->osdep.ihs[i], affinity, 2986 NULL); 2987 aprint_normal_dev(dev, "for TX/RX, interrupting at %s", 2988 intrstr); 2989 if (error == 0) 2990 aprint_normal(", bound queue %d to cpu %d\n", 2991 i, cpu_id % ncpu); 2992 else 2993 aprint_normal("\n"); 2994 2995 #ifndef IXGBE_LEGACY_TX 2996 txr->txr_si 2997 = softint_establish(SOFTINT_NET | IXGBE_SOFTINFT_FLAGS, 2998 ixgbe_deferred_mq_start, txr); 2999 #endif 3000 que->que_si 3001 = softint_establish(SOFTINT_NET | IXGBE_SOFTINFT_FLAGS, 3002 ixv_handle_que, que); 3003 if (que->que_si == NULL) { 3004 aprint_error_dev(dev, 3005 "could not establish software interrupt\n"); 3006 } 3007 } 3008 snprintf(wqname, sizeof(wqname), "%sdeferTx", device_xname(dev)); 3009 error = workqueue_create(&adapter->txr_wq, wqname, 3010 ixgbe_deferred_mq_start_work, adapter, IXGBE_WORKQUEUE_PRI, IPL_NET, 3011 IXGBE_WORKQUEUE_FLAGS); 3012 if (error) { 3013 aprint_error_dev(dev, "couldn't create workqueue for deferred Tx\n"); 3014 } 3015 adapter->txr_wq_enqueued = percpu_alloc(sizeof(u_int)); 3016 3017 snprintf(wqname, sizeof(wqname), "%sTxRx", device_xname(dev)); 3018 error = workqueue_create(&adapter->que_wq, wqname, 3019 ixv_handle_que_work, adapter, IXGBE_WORKQUEUE_PRI, IPL_NET, 3020 IXGBE_WORKQUEUE_FLAGS); 3021 if (error) { 3022 aprint_error_dev(dev, 3023 "couldn't create workqueue\n"); 3024 } 3025 3026 /* and Mailbox */ 3027 cpu_id++; 3028 snprintf(intr_xname, sizeof(intr_xname), "%s link", device_xname(dev)); 3029 adapter->vector = vector; 3030 intrstr = pci_intr_string(pc, adapter->osdep.intrs[vector], intrbuf, 3031 sizeof(intrbuf)); 3032 #ifdef IXGBE_MPSAFE 3033 pci_intr_setattr(pc, &adapter->osdep.intrs[vector], PCI_INTR_MPSAFE, 3034 true); 3035 #endif 3036 /* Set the mbx handler function */ 3037 adapter->osdep.ihs[vector] = pci_intr_establish_xname(pc, 3038 adapter->osdep.intrs[vector], IPL_NET, ixv_msix_mbx, adapter, 3039 intr_xname); 3040 if (adapter->osdep.ihs[vector] == NULL) { 3041 aprint_error_dev(dev, "Failed to register LINK handler\n"); 3042 kcpuset_destroy(affinity); 3043 return (ENXIO); 3044 } 3045 /* Round-robin affinity */ 3046 kcpuset_zero(affinity); 3047 kcpuset_set(affinity, cpu_id % ncpu); 3048 error = interrupt_distribute(adapter->osdep.ihs[vector], 3049 affinity, NULL); 3050 3051 aprint_normal_dev(dev, 3052 "for link, interrupting at %s", intrstr); 3053 if (error == 0) 3054 aprint_normal(", affinity to cpu %d\n", cpu_id % ncpu); 3055 else 3056 aprint_normal("\n"); 3057 3058 /* Tasklets for Mailbox */ 3059 adapter->link_si = softint_establish(SOFTINT_NET |IXGBE_SOFTINFT_FLAGS, 3060 ixv_handle_link, adapter); 3061 /* 3062 * Due to a broken design QEMU will fail to properly 3063 * enable the guest for MSI-X unless the vectors in 3064 * the table are all set up, so we must rewrite the 3065 * ENABLE in the MSI-X control register again at this 3066 * point to cause it to successfully initialize us. 3067 */ 3068 if (adapter->hw.mac.type == ixgbe_mac_82599_vf) { 3069 pci_get_capability(pc, tag, PCI_CAP_MSIX, &rid, NULL); 3070 rid += PCI_MSIX_CTL; 3071 msix_ctrl = pci_conf_read(pc, tag, rid); 3072 msix_ctrl |= PCI_MSIX_CTL_ENABLE; 3073 pci_conf_write(pc, tag, rid, msix_ctrl); 3074 } 3075 3076 kcpuset_destroy(affinity); 3077 return (0); 3078 } /* ixv_allocate_msix */ 3079 3080 /************************************************************************ 3081 * ixv_configure_interrupts - Setup MSI-X resources 3082 * 3083 * Note: The VF device MUST use MSI-X, there is no fallback. 3084 ************************************************************************/ 3085 static int 3086 ixv_configure_interrupts(struct adapter *adapter) 3087 { 3088 device_t dev = adapter->dev; 3089 int want, queues, msgs; 3090 3091 /* Must have at least 2 MSI-X vectors */ 3092 msgs = pci_msix_count(adapter->osdep.pc, adapter->osdep.tag); 3093 if (msgs < 2) { 3094 aprint_error_dev(dev, "MSIX config error\n"); 3095 return (ENXIO); 3096 } 3097 msgs = MIN(msgs, IXG_MAX_NINTR); 3098 3099 /* Figure out a reasonable auto config value */ 3100 queues = (ncpu > (msgs - 1)) ? (msgs - 1) : ncpu; 3101 3102 if (ixv_num_queues != 0) 3103 queues = ixv_num_queues; 3104 else if ((ixv_num_queues == 0) && (queues > IXGBE_VF_MAX_TX_QUEUES)) 3105 queues = IXGBE_VF_MAX_TX_QUEUES; 3106 3107 /* 3108 * Want vectors for the queues, 3109 * plus an additional for mailbox. 3110 */ 3111 want = queues + 1; 3112 if (msgs >= want) 3113 msgs = want; 3114 else { 3115 aprint_error_dev(dev, 3116 "MSI-X Configuration Problem, " 3117 "%d vectors but %d queues wanted!\n", 3118 msgs, want); 3119 return -1; 3120 } 3121 3122 adapter->msix_mem = (void *)1; /* XXX */ 3123 aprint_normal_dev(dev, 3124 "Using MSI-X interrupts with %d vectors\n", msgs); 3125 adapter->num_queues = queues; 3126 3127 return (0); 3128 } /* ixv_configure_interrupts */ 3129 3130 3131 /************************************************************************ 3132 * ixv_handle_link - Tasklet handler for MSI-X MBX interrupts 3133 * 3134 * Done outside of interrupt context since the driver might sleep 3135 ************************************************************************/ 3136 static void 3137 ixv_handle_link(void *context) 3138 { 3139 struct adapter *adapter = context; 3140 3141 IXGBE_CORE_LOCK(adapter); 3142 3143 adapter->hw.mac.ops.check_link(&adapter->hw, &adapter->link_speed, 3144 &adapter->link_up, FALSE); 3145 ixv_update_link_status(adapter); 3146 3147 IXGBE_CORE_UNLOCK(adapter); 3148 } /* ixv_handle_link */ 3149 3150 /************************************************************************ 3151 * ixv_check_link - Used in the local timer to poll for link changes 3152 ************************************************************************/ 3153 static void 3154 ixv_check_link(struct adapter *adapter) 3155 { 3156 3157 KASSERT(mutex_owned(&adapter->core_mtx)); 3158 3159 adapter->hw.mac.get_link_status = TRUE; 3160 3161 adapter->hw.mac.ops.check_link(&adapter->hw, &adapter->link_speed, 3162 &adapter->link_up, FALSE); 3163 ixv_update_link_status(adapter); 3164 } /* ixv_check_link */ 3165
Indexes created Tue Sep 30 20:09:53 GMT 2025