ixv.c revision 1.88
1 /*$NetBSD: ixv.c,v 1.88 2018/03/15 06:48:51 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 320688 2017-07-05 17:27:03Z erj $*/ 36 37 38 #ifdef _KERNEL_OPT 39 #include "opt_inet.h" 40 #include "opt_inet6.h" 41 #include "opt_net_mpsafe.h" 42 #endif 43 44 #include "ixgbe.h" 45 #include "vlan.h" 46 47 /************************************************************************ 48 * Driver version 49 ************************************************************************/ 50 char ixv_driver_version[] = "1.5.13-k"; 51 52 /************************************************************************ 53 * PCI Device ID Table 54 * 55 * Used by probe to select devices to load on 56 * Last field stores an index into ixv_strings 57 * Last entry must be all 0s 58 * 59 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, String Index } 60 ************************************************************************/ 61 static ixgbe_vendor_info_t ixv_vendor_info_array[] = 62 { 63 {IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82599_VF, 0, 0, 0}, 64 {IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X540_VF, 0, 0, 0}, 65 {IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X550_VF, 0, 0, 0}, 66 {IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X550EM_X_VF, 0, 0, 0}, 67 {IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X550EM_A_VF, 0, 0, 0}, 68 /* required last entry */ 69 {0, 0, 0, 0, 0} 70 }; 71 72 /************************************************************************ 73 * Table of branding strings 74 ************************************************************************/ 75 static const char *ixv_strings[] = { 76 "Intel(R) PRO/10GbE Virtual Function Network Driver" 77 }; 78 79 /********************************************************************* 80 * Function prototypes 81 *********************************************************************/ 82 static int ixv_probe(device_t, cfdata_t, void *); 83 static void ixv_attach(device_t, device_t, void *); 84 static int ixv_detach(device_t, int); 85 #if 0 86 static int ixv_shutdown(device_t); 87 #endif 88 static int ixv_ifflags_cb(struct ethercom *); 89 static int ixv_ioctl(struct ifnet *, u_long, void *); 90 static int ixv_init(struct ifnet *); 91 static void ixv_init_locked(struct adapter *); 92 static void ixv_ifstop(struct ifnet *, int); 93 static void ixv_stop(void *); 94 static void ixv_init_device_features(struct adapter *); 95 static void ixv_media_status(struct ifnet *, struct ifmediareq *); 96 static int ixv_media_change(struct ifnet *); 97 static int ixv_allocate_pci_resources(struct adapter *, 98 const struct pci_attach_args *); 99 static int ixv_allocate_msix(struct adapter *, 100 const struct pci_attach_args *); 101 static int ixv_configure_interrupts(struct adapter *); 102 static void ixv_free_pci_resources(struct adapter *); 103 static void ixv_local_timer(void *); 104 static void ixv_local_timer_locked(void *); 105 static int ixv_setup_interface(device_t, struct adapter *); 106 static int ixv_negotiate_api(struct adapter *); 107 108 static void ixv_initialize_transmit_units(struct adapter *); 109 static void ixv_initialize_receive_units(struct adapter *); 110 static void ixv_initialize_rss_mapping(struct adapter *); 111 static void ixv_check_link(struct adapter *); 112 113 static void ixv_enable_intr(struct adapter *); 114 static void ixv_disable_intr(struct adapter *); 115 static void ixv_set_multi(struct adapter *); 116 static void ixv_update_link_status(struct adapter *); 117 static int ixv_sysctl_debug(SYSCTLFN_PROTO); 118 static void ixv_set_ivar(struct adapter *, u8, u8, s8); 119 static void ixv_configure_ivars(struct adapter *); 120 static u8 * ixv_mc_array_itr(struct ixgbe_hw *, u8 **, u32 *); 121 static void ixv_eitr_write(struct ix_queue *, uint32_t); 122 123 static void ixv_setup_vlan_support(struct adapter *); 124 #if 0 125 static void ixv_register_vlan(void *, struct ifnet *, u16); 126 static void ixv_unregister_vlan(void *, struct ifnet *, u16); 127 #endif 128 129 static void ixv_add_device_sysctls(struct adapter *); 130 static void ixv_save_stats(struct adapter *); 131 static void ixv_init_stats(struct adapter *); 132 static void ixv_update_stats(struct adapter *); 133 static void ixv_add_stats_sysctls(struct adapter *); 134 135 136 /* Sysctl handlers */ 137 static void ixv_set_sysctl_value(struct adapter *, const char *, 138 const char *, int *, int); 139 static int ixv_sysctl_interrupt_rate_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 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 pakcet 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 ixgbe_vendor_info_t * 263 ixv_lookup(const struct pci_attach_args *pa) 264 { 265 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 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->im_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 = adapter->queues; 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); 732 733 /* reprogram the RAR[0] in case user changed it. */ 734 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV); 735 736 /* Get the latest mac address, User can use a LAA */ 737 memcpy(hw->mac.addr, CLLADDR(adapter->ifp->if_sadl), 738 IXGBE_ETH_LENGTH_OF_ADDRESS); 739 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, 1); 740 741 /* Prepare transmit descriptors and buffers */ 742 if (ixgbe_setup_transmit_structures(adapter)) { 743 aprint_error_dev(dev, "Could not setup transmit structures\n"); 744 ixv_stop(adapter); 745 return; 746 } 747 748 /* Reset VF and renegotiate mailbox API version */ 749 hw->mac.ops.reset_hw(hw); 750 error = ixv_negotiate_api(adapter); 751 if (error) 752 device_printf(dev, 753 "Mailbox API negotiation failed in init_locked!\n"); 754 755 ixv_initialize_transmit_units(adapter); 756 757 /* Setup Multicast table */ 758 ixv_set_multi(adapter); 759 760 /* 761 * Determine the correct mbuf pool 762 * for doing jumbo/headersplit 763 */ 764 if (ifp->if_mtu > ETHERMTU) 765 adapter->rx_mbuf_sz = MJUMPAGESIZE; 766 else 767 adapter->rx_mbuf_sz = MCLBYTES; 768 769 /* Prepare receive descriptors and buffers */ 770 if (ixgbe_setup_receive_structures(adapter)) { 771 device_printf(dev, "Could not setup receive structures\n"); 772 ixv_stop(adapter); 773 return; 774 } 775 776 /* Configure RX settings */ 777 ixv_initialize_receive_units(adapter); 778 779 #if 0 /* XXX isn't it required? -- msaitoh */ 780 /* Set the various hardware offload abilities */ 781 ifp->if_hwassist = 0; 782 if (ifp->if_capenable & IFCAP_TSO4) 783 ifp->if_hwassist |= CSUM_TSO; 784 if (ifp->if_capenable & IFCAP_TXCSUM) { 785 ifp->if_hwassist |= (CSUM_TCP | CSUM_UDP); 786 #if __FreeBSD_version >= 800000 787 ifp->if_hwassist |= CSUM_SCTP; 788 #endif 789 } 790 #endif 791 792 /* Set up VLAN offload and filter */ 793 ixv_setup_vlan_support(adapter); 794 795 /* Set up MSI-X routing */ 796 ixv_configure_ivars(adapter); 797 798 /* Set up auto-mask */ 799 mask = (1 << adapter->vector); 800 for (i = 0; i < adapter->num_queues; i++, que++) 801 mask |= (1 << que->msix); 802 IXGBE_WRITE_REG(hw, IXGBE_VTEIAM, mask); 803 804 /* Set moderation on the Link interrupt */ 805 IXGBE_WRITE_REG(hw, IXGBE_VTEITR(adapter->vector), IXGBE_LINK_ITR); 806 807 /* Stats init */ 808 ixv_init_stats(adapter); 809 810 /* Config/Enable Link */ 811 hw->mac.get_link_status = TRUE; 812 hw->mac.ops.check_link(hw, &adapter->link_speed, &adapter->link_up, 813 FALSE); 814 815 /* Start watchdog */ 816 callout_reset(&adapter->timer, hz, ixv_local_timer, adapter); 817 818 /* And now turn on interrupts */ 819 ixv_enable_intr(adapter); 820 821 /* Update saved flags. See ixgbe_ifflags_cb() */ 822 adapter->if_flags = ifp->if_flags; 823 824 /* Now inform the stack we're ready */ 825 ifp->if_flags |= IFF_RUNNING; 826 ifp->if_flags &= ~IFF_OACTIVE; 827 828 return; 829 } /* ixv_init_locked */ 830 831 /************************************************************************ 832 * ixv_enable_queue 833 ************************************************************************/ 834 static inline void 835 ixv_enable_queue(struct adapter *adapter, u32 vector) 836 { 837 struct ixgbe_hw *hw = &adapter->hw; 838 struct ix_queue *que = &adapter->queues[vector]; 839 u32 queue = 1 << vector; 840 u32 mask; 841 842 mutex_enter(&que->im_mtx); 843 if (que->im_nest > 0 && --que->im_nest > 0) 844 goto out; 845 846 mask = (IXGBE_EIMS_RTX_QUEUE & queue); 847 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, mask); 848 out: 849 mutex_exit(&que->im_mtx); 850 } /* ixv_enable_queue */ 851 852 /************************************************************************ 853 * ixv_disable_queue 854 ************************************************************************/ 855 static inline void 856 ixv_disable_queue(struct adapter *adapter, u32 vector) 857 { 858 struct ixgbe_hw *hw = &adapter->hw; 859 struct ix_queue *que = &adapter->queues[vector]; 860 u64 queue = (u64)(1 << vector); 861 u32 mask; 862 863 mutex_enter(&que->im_mtx); 864 if (que->im_nest++ > 0) 865 goto out; 866 867 mask = (IXGBE_EIMS_RTX_QUEUE & queue); 868 IXGBE_WRITE_REG(hw, IXGBE_VTEIMC, mask); 869 out: 870 mutex_exit(&que->im_mtx); 871 } /* ixv_disable_queue */ 872 873 static inline void 874 ixv_rearm_queues(struct adapter *adapter, u64 queues) 875 { 876 u32 mask = (IXGBE_EIMS_RTX_QUEUE & queues); 877 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEICS, mask); 878 } /* ixv_rearm_queues */ 879 880 881 /************************************************************************ 882 * ixv_msix_que - MSI Queue Interrupt Service routine 883 ************************************************************************/ 884 static int 885 ixv_msix_que(void *arg) 886 { 887 struct ix_queue *que = arg; 888 struct adapter *adapter = que->adapter; 889 struct tx_ring *txr = que->txr; 890 struct rx_ring *rxr = que->rxr; 891 bool more; 892 u32 newitr = 0; 893 894 ixv_disable_queue(adapter, que->msix); 895 ++que->irqs.ev_count; 896 897 #ifdef __NetBSD__ 898 /* Don't run ixgbe_rxeof in interrupt context */ 899 more = true; 900 #else 901 more = ixgbe_rxeof(que); 902 #endif 903 904 IXGBE_TX_LOCK(txr); 905 ixgbe_txeof(txr); 906 IXGBE_TX_UNLOCK(txr); 907 908 /* Do AIM now? */ 909 910 if (adapter->enable_aim == false) 911 goto no_calc; 912 /* 913 * Do Adaptive Interrupt Moderation: 914 * - Write out last calculated setting 915 * - Calculate based on average size over 916 * the last interval. 917 */ 918 if (que->eitr_setting) 919 ixv_eitr_write(que, que->eitr_setting); 920 921 que->eitr_setting = 0; 922 923 /* Idle, do nothing */ 924 if ((txr->bytes == 0) && (rxr->bytes == 0)) 925 goto no_calc; 926 927 if ((txr->bytes) && (txr->packets)) 928 newitr = txr->bytes/txr->packets; 929 if ((rxr->bytes) && (rxr->packets)) 930 newitr = max(newitr, (rxr->bytes / rxr->packets)); 931 newitr += 24; /* account for hardware frame, crc */ 932 933 /* set an upper boundary */ 934 newitr = min(newitr, 3000); 935 936 /* Be nice to the mid range */ 937 if ((newitr > 300) && (newitr < 1200)) 938 newitr = (newitr / 3); 939 else 940 newitr = (newitr / 2); 941 942 /* 943 * When RSC is used, ITR interval must be larger than RSC_DELAY. 944 * Currently, we use 2us for RSC_DELAY. The minimum value is always 945 * greater than 2us on 100M (and 10M?(not documented)), but it's not 946 * on 1G and higher. 947 */ 948 if ((adapter->link_speed != IXGBE_LINK_SPEED_100_FULL) 949 && (adapter->link_speed != IXGBE_LINK_SPEED_10_FULL)) { 950 if (newitr < IXGBE_MIN_RSC_EITR_10G1G) 951 newitr = IXGBE_MIN_RSC_EITR_10G1G; 952 } 953 954 /* save for next interrupt */ 955 que->eitr_setting = newitr; 956 957 /* Reset state */ 958 txr->bytes = 0; 959 txr->packets = 0; 960 rxr->bytes = 0; 961 rxr->packets = 0; 962 963 no_calc: 964 if (more) 965 softint_schedule(que->que_si); 966 else /* Re-enable this interrupt */ 967 ixv_enable_queue(adapter, que->msix); 968 969 return 1; 970 } /* ixv_msix_que */ 971 972 /************************************************************************ 973 * ixv_msix_mbx 974 ************************************************************************/ 975 static int 976 ixv_msix_mbx(void *arg) 977 { 978 struct adapter *adapter = arg; 979 struct ixgbe_hw *hw = &adapter->hw; 980 981 ++adapter->link_irq.ev_count; 982 /* NetBSD: We use auto-clear, so it's not required to write VTEICR */ 983 984 /* Link status change */ 985 hw->mac.get_link_status = TRUE; 986 softint_schedule(adapter->link_si); 987 988 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, (1 << adapter->vector)); 989 990 return 1; 991 } /* ixv_msix_mbx */ 992 993 static void 994 ixv_eitr_write(struct ix_queue *que, uint32_t itr) 995 { 996 struct adapter *adapter = que->adapter; 997 998 /* 999 * Newer devices than 82598 have VF function, so this function is 1000 * simple. 1001 */ 1002 itr |= IXGBE_EITR_CNT_WDIS; 1003 1004 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEITR(que->msix), itr); 1005 } 1006 1007 1008 /************************************************************************ 1009 * ixv_media_status - Media Ioctl callback 1010 * 1011 * Called whenever the user queries the status of 1012 * the interface using ifconfig. 1013 ************************************************************************/ 1014 static void 1015 ixv_media_status(struct ifnet *ifp, struct ifmediareq *ifmr) 1016 { 1017 struct adapter *adapter = ifp->if_softc; 1018 1019 INIT_DEBUGOUT("ixv_media_status: begin"); 1020 IXGBE_CORE_LOCK(adapter); 1021 ixv_update_link_status(adapter); 1022 1023 ifmr->ifm_status = IFM_AVALID; 1024 ifmr->ifm_active = IFM_ETHER; 1025 1026 if (!adapter->link_active) { 1027 ifmr->ifm_active |= IFM_NONE; 1028 IXGBE_CORE_UNLOCK(adapter); 1029 return; 1030 } 1031 1032 ifmr->ifm_status |= IFM_ACTIVE; 1033 1034 switch (adapter->link_speed) { 1035 case IXGBE_LINK_SPEED_10GB_FULL: 1036 ifmr->ifm_active |= IFM_10G_T | IFM_FDX; 1037 break; 1038 case IXGBE_LINK_SPEED_5GB_FULL: 1039 ifmr->ifm_active |= IFM_5000_T | IFM_FDX; 1040 break; 1041 case IXGBE_LINK_SPEED_2_5GB_FULL: 1042 ifmr->ifm_active |= IFM_2500_T | IFM_FDX; 1043 break; 1044 case IXGBE_LINK_SPEED_1GB_FULL: 1045 ifmr->ifm_active |= IFM_1000_T | IFM_FDX; 1046 break; 1047 case IXGBE_LINK_SPEED_100_FULL: 1048 ifmr->ifm_active |= IFM_100_TX | IFM_FDX; 1049 break; 1050 case IXGBE_LINK_SPEED_10_FULL: 1051 ifmr->ifm_active |= IFM_10_T | IFM_FDX; 1052 break; 1053 } 1054 1055 ifp->if_baudrate = ifmedia_baudrate(ifmr->ifm_active); 1056 1057 IXGBE_CORE_UNLOCK(adapter); 1058 } /* ixv_media_status */ 1059 1060 /************************************************************************ 1061 * ixv_media_change - Media Ioctl callback 1062 * 1063 * Called when the user changes speed/duplex using 1064 * media/mediopt option with ifconfig. 1065 ************************************************************************/ 1066 static int 1067 ixv_media_change(struct ifnet *ifp) 1068 { 1069 struct adapter *adapter = ifp->if_softc; 1070 struct ifmedia *ifm = &adapter->media; 1071 1072 INIT_DEBUGOUT("ixv_media_change: begin"); 1073 1074 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 1075 return (EINVAL); 1076 1077 switch (IFM_SUBTYPE(ifm->ifm_media)) { 1078 case IFM_AUTO: 1079 break; 1080 default: 1081 device_printf(adapter->dev, "Only auto media type\n"); 1082 return (EINVAL); 1083 } 1084 1085 return (0); 1086 } /* ixv_media_change */ 1087 1088 1089 /************************************************************************ 1090 * ixv_negotiate_api 1091 * 1092 * Negotiate the Mailbox API with the PF; 1093 * start with the most featured API first. 1094 ************************************************************************/ 1095 static int 1096 ixv_negotiate_api(struct adapter *adapter) 1097 { 1098 struct ixgbe_hw *hw = &adapter->hw; 1099 int mbx_api[] = { ixgbe_mbox_api_11, 1100 ixgbe_mbox_api_10, 1101 ixgbe_mbox_api_unknown }; 1102 int i = 0; 1103 1104 while (mbx_api[i] != ixgbe_mbox_api_unknown) { 1105 if (ixgbevf_negotiate_api_version(hw, mbx_api[i]) == 0) 1106 return (0); 1107 i++; 1108 } 1109 1110 return (EINVAL); 1111 } /* ixv_negotiate_api */ 1112 1113 1114 /************************************************************************ 1115 * ixv_set_multi - Multicast Update 1116 * 1117 * Called whenever multicast address list is updated. 1118 ************************************************************************/ 1119 static void 1120 ixv_set_multi(struct adapter *adapter) 1121 { 1122 struct ether_multi *enm; 1123 struct ether_multistep step; 1124 struct ethercom *ec = &adapter->osdep.ec; 1125 u8 mta[MAX_NUM_MULTICAST_ADDRESSES * IXGBE_ETH_LENGTH_OF_ADDRESS]; 1126 u8 *update_ptr; 1127 int mcnt = 0; 1128 1129 KASSERT(mutex_owned(&adapter->core_mtx)); 1130 IOCTL_DEBUGOUT("ixv_set_multi: begin"); 1131 1132 ETHER_LOCK(ec); 1133 ETHER_FIRST_MULTI(step, ec, enm); 1134 while (enm != NULL) { 1135 bcopy(enm->enm_addrlo, 1136 &mta[mcnt * IXGBE_ETH_LENGTH_OF_ADDRESS], 1137 IXGBE_ETH_LENGTH_OF_ADDRESS); 1138 mcnt++; 1139 /* XXX This might be required --msaitoh */ 1140 if (mcnt >= MAX_NUM_MULTICAST_ADDRESSES) 1141 break; 1142 ETHER_NEXT_MULTI(step, enm); 1143 } 1144 ETHER_UNLOCK(ec); 1145 1146 update_ptr = mta; 1147 1148 adapter->hw.mac.ops.update_mc_addr_list(&adapter->hw, update_ptr, mcnt, 1149 ixv_mc_array_itr, TRUE); 1150 } /* ixv_set_multi */ 1151 1152 /************************************************************************ 1153 * ixv_mc_array_itr 1154 * 1155 * An iterator function needed by the multicast shared code. 1156 * It feeds the shared code routine the addresses in the 1157 * array of ixv_set_multi() one by one. 1158 ************************************************************************/ 1159 static u8 * 1160 ixv_mc_array_itr(struct ixgbe_hw *hw, u8 **update_ptr, u32 *vmdq) 1161 { 1162 u8 *addr = *update_ptr; 1163 u8 *newptr; 1164 1165 *vmdq = 0; 1166 1167 newptr = addr + IXGBE_ETH_LENGTH_OF_ADDRESS; 1168 *update_ptr = newptr; 1169 1170 return addr; 1171 } /* ixv_mc_array_itr */ 1172 1173 /************************************************************************ 1174 * ixv_local_timer - Timer routine 1175 * 1176 * Checks for link status, updates statistics, 1177 * and runs the watchdog check. 1178 ************************************************************************/ 1179 static void 1180 ixv_local_timer(void *arg) 1181 { 1182 struct adapter *adapter = arg; 1183 1184 IXGBE_CORE_LOCK(adapter); 1185 ixv_local_timer_locked(adapter); 1186 IXGBE_CORE_UNLOCK(adapter); 1187 } 1188 1189 static void 1190 ixv_local_timer_locked(void *arg) 1191 { 1192 struct adapter *adapter = arg; 1193 device_t dev = adapter->dev; 1194 struct ix_queue *que = adapter->queues; 1195 u64 queues = 0; 1196 u64 v0, v1, v2, v3, v4, v5, v6, v7; 1197 int hung = 0; 1198 int i; 1199 1200 KASSERT(mutex_owned(&adapter->core_mtx)); 1201 1202 ixv_check_link(adapter); 1203 1204 /* Stats Update */ 1205 ixv_update_stats(adapter); 1206 1207 /* Update some event counters */ 1208 v0 = v1 = v2 = v3 = v4 = v5 = v6 = v7 = 0; 1209 que = adapter->queues; 1210 for (i = 0; i < adapter->num_queues; i++, que++) { 1211 struct tx_ring *txr = que->txr; 1212 1213 v0 += txr->q_efbig_tx_dma_setup; 1214 v1 += txr->q_mbuf_defrag_failed; 1215 v2 += txr->q_efbig2_tx_dma_setup; 1216 v3 += txr->q_einval_tx_dma_setup; 1217 v4 += txr->q_other_tx_dma_setup; 1218 v5 += txr->q_eagain_tx_dma_setup; 1219 v6 += txr->q_enomem_tx_dma_setup; 1220 v7 += txr->q_tso_err; 1221 } 1222 adapter->efbig_tx_dma_setup.ev_count = v0; 1223 adapter->mbuf_defrag_failed.ev_count = v1; 1224 adapter->efbig2_tx_dma_setup.ev_count = v2; 1225 adapter->einval_tx_dma_setup.ev_count = v3; 1226 adapter->other_tx_dma_setup.ev_count = v4; 1227 adapter->eagain_tx_dma_setup.ev_count = v5; 1228 adapter->enomem_tx_dma_setup.ev_count = v6; 1229 adapter->tso_err.ev_count = v7; 1230 1231 /* 1232 * Check the TX queues status 1233 * - mark hung queues so we don't schedule on them 1234 * - watchdog only if all queues show hung 1235 */ 1236 que = adapter->queues; 1237 for (i = 0; i < adapter->num_queues; i++, que++) { 1238 /* Keep track of queues with work for soft irq */ 1239 if (que->txr->busy) 1240 queues |= ((u64)1 << que->me); 1241 /* 1242 * Each time txeof runs without cleaning, but there 1243 * are uncleaned descriptors it increments busy. If 1244 * we get to the MAX we declare it hung. 1245 */ 1246 if (que->busy == IXGBE_QUEUE_HUNG) { 1247 ++hung; 1248 /* Mark the queue as inactive */ 1249 adapter->active_queues &= ~((u64)1 << que->me); 1250 continue; 1251 } else { 1252 /* Check if we've come back from hung */ 1253 if ((adapter->active_queues & ((u64)1 << que->me)) == 0) 1254 adapter->active_queues |= ((u64)1 << que->me); 1255 } 1256 if (que->busy >= IXGBE_MAX_TX_BUSY) { 1257 device_printf(dev, 1258 "Warning queue %d appears to be hung!\n", i); 1259 que->txr->busy = IXGBE_QUEUE_HUNG; 1260 ++hung; 1261 } 1262 } 1263 1264 /* Only truly watchdog if all queues show hung */ 1265 if (hung == adapter->num_queues) 1266 goto watchdog; 1267 else if (queues != 0) { /* Force an IRQ on queues with work */ 1268 ixv_rearm_queues(adapter, queues); 1269 } 1270 1271 callout_reset(&adapter->timer, hz, ixv_local_timer, adapter); 1272 1273 return; 1274 1275 watchdog: 1276 1277 device_printf(adapter->dev, "Watchdog timeout -- resetting\n"); 1278 adapter->ifp->if_flags &= ~IFF_RUNNING; 1279 adapter->watchdog_events.ev_count++; 1280 ixv_init_locked(adapter); 1281 } /* ixv_local_timer */ 1282 1283 /************************************************************************ 1284 * ixv_update_link_status - Update OS on link state 1285 * 1286 * Note: Only updates the OS on the cached link state. 1287 * The real check of the hardware only happens with 1288 * a link interrupt. 1289 ************************************************************************/ 1290 static void 1291 ixv_update_link_status(struct adapter *adapter) 1292 { 1293 struct ifnet *ifp = adapter->ifp; 1294 device_t dev = adapter->dev; 1295 1296 if (adapter->link_up) { 1297 if (adapter->link_active == FALSE) { 1298 if (bootverbose) { 1299 const char *bpsmsg; 1300 1301 switch (adapter->link_speed) { 1302 case IXGBE_LINK_SPEED_10GB_FULL: 1303 bpsmsg = "10 Gbps"; 1304 break; 1305 case IXGBE_LINK_SPEED_5GB_FULL: 1306 bpsmsg = "5 Gbps"; 1307 break; 1308 case IXGBE_LINK_SPEED_2_5GB_FULL: 1309 bpsmsg = "2.5 Gbps"; 1310 break; 1311 case IXGBE_LINK_SPEED_1GB_FULL: 1312 bpsmsg = "1 Gbps"; 1313 break; 1314 case IXGBE_LINK_SPEED_100_FULL: 1315 bpsmsg = "100 Mbps"; 1316 break; 1317 case IXGBE_LINK_SPEED_10_FULL: 1318 bpsmsg = "10 Mbps"; 1319 break; 1320 default: 1321 bpsmsg = "unknown speed"; 1322 break; 1323 } 1324 device_printf(dev, "Link is up %s %s \n", 1325 bpsmsg, "Full Duplex"); 1326 } 1327 adapter->link_active = TRUE; 1328 if_link_state_change(ifp, LINK_STATE_UP); 1329 } 1330 } else { /* Link down */ 1331 if (adapter->link_active == TRUE) { 1332 if (bootverbose) 1333 device_printf(dev, "Link is Down\n"); 1334 if_link_state_change(ifp, LINK_STATE_DOWN); 1335 adapter->link_active = FALSE; 1336 } 1337 } 1338 } /* ixv_update_link_status */ 1339 1340 1341 /************************************************************************ 1342 * ixv_stop - Stop the hardware 1343 * 1344 * Disables all traffic on the adapter by issuing a 1345 * global reset on the MAC and deallocates TX/RX buffers. 1346 ************************************************************************/ 1347 static void 1348 ixv_ifstop(struct ifnet *ifp, int disable) 1349 { 1350 struct adapter *adapter = ifp->if_softc; 1351 1352 IXGBE_CORE_LOCK(adapter); 1353 ixv_stop(adapter); 1354 IXGBE_CORE_UNLOCK(adapter); 1355 } 1356 1357 static void 1358 ixv_stop(void *arg) 1359 { 1360 struct ifnet *ifp; 1361 struct adapter *adapter = arg; 1362 struct ixgbe_hw *hw = &adapter->hw; 1363 1364 ifp = adapter->ifp; 1365 1366 KASSERT(mutex_owned(&adapter->core_mtx)); 1367 1368 INIT_DEBUGOUT("ixv_stop: begin\n"); 1369 ixv_disable_intr(adapter); 1370 1371 /* Tell the stack that the interface is no longer active */ 1372 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1373 1374 hw->mac.ops.reset_hw(hw); 1375 adapter->hw.adapter_stopped = FALSE; 1376 hw->mac.ops.stop_adapter(hw); 1377 callout_stop(&adapter->timer); 1378 1379 /* reprogram the RAR[0] in case user changed it. */ 1380 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV); 1381 1382 return; 1383 } /* ixv_stop */ 1384 1385 1386 /************************************************************************ 1387 * ixv_allocate_pci_resources 1388 ************************************************************************/ 1389 static int 1390 ixv_allocate_pci_resources(struct adapter *adapter, 1391 const struct pci_attach_args *pa) 1392 { 1393 pcireg_t memtype; 1394 device_t dev = adapter->dev; 1395 bus_addr_t addr; 1396 int flags; 1397 1398 memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, PCI_BAR(0)); 1399 switch (memtype) { 1400 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: 1401 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: 1402 adapter->osdep.mem_bus_space_tag = pa->pa_memt; 1403 if (pci_mapreg_info(pa->pa_pc, pa->pa_tag, PCI_BAR(0), 1404 memtype, &addr, &adapter->osdep.mem_size, &flags) != 0) 1405 goto map_err; 1406 if ((flags & BUS_SPACE_MAP_PREFETCHABLE) != 0) { 1407 aprint_normal_dev(dev, "clearing prefetchable bit\n"); 1408 flags &= ~BUS_SPACE_MAP_PREFETCHABLE; 1409 } 1410 if (bus_space_map(adapter->osdep.mem_bus_space_tag, addr, 1411 adapter->osdep.mem_size, flags, 1412 &adapter->osdep.mem_bus_space_handle) != 0) { 1413 map_err: 1414 adapter->osdep.mem_size = 0; 1415 aprint_error_dev(dev, "unable to map BAR0\n"); 1416 return ENXIO; 1417 } 1418 break; 1419 default: 1420 aprint_error_dev(dev, "unexpected type on BAR0\n"); 1421 return ENXIO; 1422 } 1423 1424 /* Pick up the tuneable queues */ 1425 adapter->num_queues = ixv_num_queues; 1426 1427 return (0); 1428 } /* ixv_allocate_pci_resources */ 1429 1430 /************************************************************************ 1431 * ixv_free_pci_resources 1432 ************************************************************************/ 1433 static void 1434 ixv_free_pci_resources(struct adapter * adapter) 1435 { 1436 struct ix_queue *que = adapter->queues; 1437 int rid; 1438 1439 /* 1440 * Release all msix queue resources: 1441 */ 1442 for (int i = 0; i < adapter->num_queues; i++, que++) { 1443 if (que->res != NULL) 1444 pci_intr_disestablish(adapter->osdep.pc, 1445 adapter->osdep.ihs[i]); 1446 } 1447 1448 1449 /* Clean the Mailbox interrupt last */ 1450 rid = adapter->vector; 1451 1452 if (adapter->osdep.ihs[rid] != NULL) { 1453 pci_intr_disestablish(adapter->osdep.pc, 1454 adapter->osdep.ihs[rid]); 1455 adapter->osdep.ihs[rid] = NULL; 1456 } 1457 1458 pci_intr_release(adapter->osdep.pc, adapter->osdep.intrs, 1459 adapter->osdep.nintrs); 1460 1461 if (adapter->osdep.mem_size != 0) { 1462 bus_space_unmap(adapter->osdep.mem_bus_space_tag, 1463 adapter->osdep.mem_bus_space_handle, 1464 adapter->osdep.mem_size); 1465 } 1466 1467 return; 1468 } /* ixv_free_pci_resources */ 1469 1470 /************************************************************************ 1471 * ixv_setup_interface 1472 * 1473 * Setup networking device structure and register an interface. 1474 ************************************************************************/ 1475 static int 1476 ixv_setup_interface(device_t dev, struct adapter *adapter) 1477 { 1478 struct ethercom *ec = &adapter->osdep.ec; 1479 struct ifnet *ifp; 1480 int rv; 1481 1482 INIT_DEBUGOUT("ixv_setup_interface: begin"); 1483 1484 ifp = adapter->ifp = &ec->ec_if; 1485 strlcpy(ifp->if_xname, device_xname(dev), IFNAMSIZ); 1486 ifp->if_baudrate = IF_Gbps(10); 1487 ifp->if_init = ixv_init; 1488 ifp->if_stop = ixv_ifstop; 1489 ifp->if_softc = adapter; 1490 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 1491 #ifdef IXGBE_MPSAFE 1492 ifp->if_extflags = IFEF_MPSAFE; 1493 #endif 1494 ifp->if_ioctl = ixv_ioctl; 1495 if (adapter->feat_en & IXGBE_FEATURE_LEGACY_TX) { 1496 #if 0 1497 ixv_start_locked = ixgbe_legacy_start_locked; 1498 #endif 1499 } else { 1500 ifp->if_transmit = ixgbe_mq_start; 1501 #if 0 1502 ixv_start_locked = ixgbe_mq_start_locked; 1503 #endif 1504 } 1505 ifp->if_start = ixgbe_legacy_start; 1506 IFQ_SET_MAXLEN(&ifp->if_snd, adapter->num_tx_desc - 2); 1507 IFQ_SET_READY(&ifp->if_snd); 1508 1509 rv = if_initialize(ifp); 1510 if (rv != 0) { 1511 aprint_error_dev(dev, "if_initialize failed(%d)\n", rv); 1512 return rv; 1513 } 1514 adapter->ipq = if_percpuq_create(&adapter->osdep.ec.ec_if); 1515 ether_ifattach(ifp, adapter->hw.mac.addr); 1516 /* 1517 * We use per TX queue softint, so if_deferred_start_init() isn't 1518 * used. 1519 */ 1520 if_register(ifp); 1521 ether_set_ifflags_cb(ec, ixv_ifflags_cb); 1522 1523 adapter->max_frame_size = ifp->if_mtu + IXGBE_MTU_HDR; 1524 1525 /* 1526 * Tell the upper layer(s) we support long frames. 1527 */ 1528 ifp->if_hdrlen = sizeof(struct ether_vlan_header); 1529 1530 /* Set capability flags */ 1531 ifp->if_capabilities |= IFCAP_HWCSUM 1532 | IFCAP_TSOv4 1533 | IFCAP_TSOv6; 1534 ifp->if_capenable = 0; 1535 1536 ec->ec_capabilities |= ETHERCAP_VLAN_HWTAGGING 1537 | ETHERCAP_VLAN_HWCSUM 1538 | ETHERCAP_JUMBO_MTU 1539 | ETHERCAP_VLAN_MTU; 1540 1541 /* Enable the above capabilities by default */ 1542 ec->ec_capenable = ec->ec_capabilities; 1543 1544 /* Don't enable LRO by default */ 1545 ifp->if_capabilities |= IFCAP_LRO; 1546 #if 0 1547 ifp->if_capenable = ifp->if_capabilities; 1548 #endif 1549 1550 /* 1551 * Specify the media types supported by this adapter and register 1552 * callbacks to update media and link information 1553 */ 1554 ifmedia_init(&adapter->media, IFM_IMASK, ixv_media_change, 1555 ixv_media_status); 1556 ifmedia_add(&adapter->media, IFM_ETHER | IFM_AUTO, 0, NULL); 1557 ifmedia_set(&adapter->media, IFM_ETHER | IFM_AUTO); 1558 1559 return 0; 1560 } /* ixv_setup_interface */ 1561 1562 1563 /************************************************************************ 1564 * ixv_initialize_transmit_units - Enable transmit unit. 1565 ************************************************************************/ 1566 static void 1567 ixv_initialize_transmit_units(struct adapter *adapter) 1568 { 1569 struct tx_ring *txr = adapter->tx_rings; 1570 struct ixgbe_hw *hw = &adapter->hw; 1571 1572 1573 for (int i = 0; i < adapter->num_queues; i++, txr++) { 1574 u64 tdba = txr->txdma.dma_paddr; 1575 u32 txctrl, txdctl; 1576 1577 /* Set WTHRESH to 8, burst writeback */ 1578 txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i)); 1579 txdctl |= (8 << 16); 1580 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(i), txdctl); 1581 1582 /* Set the HW Tx Head and Tail indices */ 1583 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VFTDH(i), 0); 1584 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VFTDT(i), 0); 1585 1586 /* Set Tx Tail register */ 1587 txr->tail = IXGBE_VFTDT(i); 1588 1589 /* Set Ring parameters */ 1590 IXGBE_WRITE_REG(hw, IXGBE_VFTDBAL(i), 1591 (tdba & 0x00000000ffffffffULL)); 1592 IXGBE_WRITE_REG(hw, IXGBE_VFTDBAH(i), (tdba >> 32)); 1593 IXGBE_WRITE_REG(hw, IXGBE_VFTDLEN(i), 1594 adapter->num_tx_desc * sizeof(struct ixgbe_legacy_tx_desc)); 1595 txctrl = IXGBE_READ_REG(hw, IXGBE_VFDCA_TXCTRL(i)); 1596 txctrl &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN; 1597 IXGBE_WRITE_REG(hw, IXGBE_VFDCA_TXCTRL(i), txctrl); 1598 1599 /* Now enable */ 1600 txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i)); 1601 txdctl |= IXGBE_TXDCTL_ENABLE; 1602 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(i), txdctl); 1603 } 1604 1605 return; 1606 } /* ixv_initialize_transmit_units */ 1607 1608 1609 /************************************************************************ 1610 * ixv_initialize_rss_mapping 1611 ************************************************************************/ 1612 static void 1613 ixv_initialize_rss_mapping(struct adapter *adapter) 1614 { 1615 struct ixgbe_hw *hw = &adapter->hw; 1616 u32 reta = 0, mrqc, rss_key[10]; 1617 int queue_id; 1618 int i, j; 1619 u32 rss_hash_config; 1620 1621 /* force use default RSS key. */ 1622 #ifdef __NetBSD__ 1623 rss_getkey((uint8_t *) &rss_key); 1624 #else 1625 if (adapter->feat_en & IXGBE_FEATURE_RSS) { 1626 /* Fetch the configured RSS key */ 1627 rss_getkey((uint8_t *)&rss_key); 1628 } else { 1629 /* set up random bits */ 1630 cprng_fast(&rss_key, sizeof(rss_key)); 1631 } 1632 #endif 1633 1634 /* Now fill out hash function seeds */ 1635 for (i = 0; i < 10; i++) 1636 IXGBE_WRITE_REG(hw, IXGBE_VFRSSRK(i), rss_key[i]); 1637 1638 /* Set up the redirection table */ 1639 for (i = 0, j = 0; i < 64; i++, j++) { 1640 if (j == adapter->num_queues) 1641 j = 0; 1642 1643 if (adapter->feat_en & IXGBE_FEATURE_RSS) { 1644 /* 1645 * Fetch the RSS bucket id for the given indirection 1646 * entry. Cap it at the number of configured buckets 1647 * (which is num_queues.) 1648 */ 1649 queue_id = rss_get_indirection_to_bucket(i); 1650 queue_id = queue_id % adapter->num_queues; 1651 } else 1652 queue_id = j; 1653 1654 /* 1655 * The low 8 bits are for hash value (n+0); 1656 * The next 8 bits are for hash value (n+1), etc. 1657 */ 1658 reta >>= 8; 1659 reta |= ((uint32_t)queue_id) << 24; 1660 if ((i & 3) == 3) { 1661 IXGBE_WRITE_REG(hw, IXGBE_VFRETA(i >> 2), reta); 1662 reta = 0; 1663 } 1664 } 1665 1666 /* Perform hash on these packet types */ 1667 if (adapter->feat_en & IXGBE_FEATURE_RSS) 1668 rss_hash_config = rss_gethashconfig(); 1669 else { 1670 /* 1671 * Disable UDP - IP fragments aren't currently being handled 1672 * and so we end up with a mix of 2-tuple and 4-tuple 1673 * traffic. 1674 */ 1675 rss_hash_config = RSS_HASHTYPE_RSS_IPV4 1676 | RSS_HASHTYPE_RSS_TCP_IPV4 1677 | RSS_HASHTYPE_RSS_IPV6 1678 | RSS_HASHTYPE_RSS_TCP_IPV6; 1679 } 1680 1681 mrqc = IXGBE_MRQC_RSSEN; 1682 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV4) 1683 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4; 1684 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV4) 1685 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_TCP; 1686 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6) 1687 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6; 1688 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV6) 1689 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_TCP; 1690 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6_EX) 1691 device_printf(adapter->dev, "%s: RSS_HASHTYPE_RSS_IPV6_EX defined, but not supported\n", 1692 __func__); 1693 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV6_EX) 1694 device_printf(adapter->dev, "%s: RSS_HASHTYPE_RSS_TCP_IPV6_EX defined, but not supported\n", 1695 __func__); 1696 if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV4) 1697 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP; 1698 if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV6) 1699 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP; 1700 if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV6_EX) 1701 device_printf(adapter->dev, "%s: RSS_HASHTYPE_RSS_UDP_IPV6_EX defined, but not supported\n", 1702 __func__); 1703 IXGBE_WRITE_REG(hw, IXGBE_VFMRQC, mrqc); 1704 } /* ixv_initialize_rss_mapping */ 1705 1706 1707 /************************************************************************ 1708 * ixv_initialize_receive_units - Setup receive registers and features. 1709 ************************************************************************/ 1710 static void 1711 ixv_initialize_receive_units(struct adapter *adapter) 1712 { 1713 struct rx_ring *rxr = adapter->rx_rings; 1714 struct ixgbe_hw *hw = &adapter->hw; 1715 struct ifnet *ifp = adapter->ifp; 1716 u32 bufsz, rxcsum, psrtype; 1717 1718 if (ifp->if_mtu > ETHERMTU) 1719 bufsz = 4096 >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; 1720 else 1721 bufsz = 2048 >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; 1722 1723 psrtype = IXGBE_PSRTYPE_TCPHDR 1724 | IXGBE_PSRTYPE_UDPHDR 1725 | IXGBE_PSRTYPE_IPV4HDR 1726 | IXGBE_PSRTYPE_IPV6HDR 1727 | IXGBE_PSRTYPE_L2HDR; 1728 1729 if (adapter->num_queues > 1) 1730 psrtype |= 1 << 29; 1731 1732 IXGBE_WRITE_REG(hw, IXGBE_VFPSRTYPE, psrtype); 1733 1734 /* Tell PF our max_frame size */ 1735 if (ixgbevf_rlpml_set_vf(hw, adapter->max_frame_size) != 0) { 1736 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"); 1737 } 1738 1739 for (int i = 0; i < adapter->num_queues; i++, rxr++) { 1740 u64 rdba = rxr->rxdma.dma_paddr; 1741 u32 reg, rxdctl; 1742 1743 /* Disable the queue */ 1744 rxdctl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i)); 1745 rxdctl &= ~IXGBE_RXDCTL_ENABLE; 1746 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(i), rxdctl); 1747 for (int j = 0; j < 10; j++) { 1748 if (IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i)) & 1749 IXGBE_RXDCTL_ENABLE) 1750 msec_delay(1); 1751 else 1752 break; 1753 } 1754 wmb(); 1755 /* Setup the Base and Length of the Rx Descriptor Ring */ 1756 IXGBE_WRITE_REG(hw, IXGBE_VFRDBAL(i), 1757 (rdba & 0x00000000ffffffffULL)); 1758 IXGBE_WRITE_REG(hw, IXGBE_VFRDBAH(i), (rdba >> 32)); 1759 IXGBE_WRITE_REG(hw, IXGBE_VFRDLEN(i), 1760 adapter->num_rx_desc * sizeof(union ixgbe_adv_rx_desc)); 1761 1762 /* Reset the ring indices */ 1763 IXGBE_WRITE_REG(hw, IXGBE_VFRDH(rxr->me), 0); 1764 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me), 0); 1765 1766 /* Set up the SRRCTL register */ 1767 reg = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(i)); 1768 reg &= ~IXGBE_SRRCTL_BSIZEHDR_MASK; 1769 reg &= ~IXGBE_SRRCTL_BSIZEPKT_MASK; 1770 reg |= bufsz; 1771 reg |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF; 1772 IXGBE_WRITE_REG(hw, IXGBE_VFSRRCTL(i), reg); 1773 1774 /* Capture Rx Tail index */ 1775 rxr->tail = IXGBE_VFRDT(rxr->me); 1776 1777 /* Do the queue enabling last */ 1778 rxdctl |= IXGBE_RXDCTL_ENABLE | IXGBE_RXDCTL_VME; 1779 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(i), rxdctl); 1780 for (int k = 0; k < 10; k++) { 1781 if (IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i)) & 1782 IXGBE_RXDCTL_ENABLE) 1783 break; 1784 msec_delay(1); 1785 } 1786 wmb(); 1787 1788 /* Set the Tail Pointer */ 1789 #ifdef DEV_NETMAP 1790 /* 1791 * In netmap mode, we must preserve the buffers made 1792 * available to userspace before the if_init() 1793 * (this is true by default on the TX side, because 1794 * init makes all buffers available to userspace). 1795 * 1796 * netmap_reset() and the device specific routines 1797 * (e.g. ixgbe_setup_receive_rings()) map these 1798 * buffers at the end of the NIC ring, so here we 1799 * must set the RDT (tail) register to make sure 1800 * they are not overwritten. 1801 * 1802 * In this driver the NIC ring starts at RDH = 0, 1803 * RDT points to the last slot available for reception (?), 1804 * so RDT = num_rx_desc - 1 means the whole ring is available. 1805 */ 1806 if ((adapter->feat_en & IXGBE_FEATURE_NETMAP) && 1807 (ifp->if_capenable & IFCAP_NETMAP)) { 1808 struct netmap_adapter *na = NA(adapter->ifp); 1809 struct netmap_kring *kring = &na->rx_rings[i]; 1810 int t = na->num_rx_desc - 1 - nm_kr_rxspace(kring); 1811 1812 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me), t); 1813 } else 1814 #endif /* DEV_NETMAP */ 1815 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me), 1816 adapter->num_rx_desc - 1); 1817 } 1818 1819 rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM); 1820 1821 ixv_initialize_rss_mapping(adapter); 1822 1823 if (adapter->num_queues > 1) { 1824 /* RSS and RX IPP Checksum are mutually exclusive */ 1825 rxcsum |= IXGBE_RXCSUM_PCSD; 1826 } 1827 1828 if (ifp->if_capenable & IFCAP_RXCSUM) 1829 rxcsum |= IXGBE_RXCSUM_PCSD; 1830 1831 if (!(rxcsum & IXGBE_RXCSUM_PCSD)) 1832 rxcsum |= IXGBE_RXCSUM_IPPCSE; 1833 1834 IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum); 1835 } /* ixv_initialize_receive_units */ 1836 1837 /************************************************************************ 1838 * ixv_sysctl_tdh_handler - Transmit Descriptor Head handler function 1839 * 1840 * Retrieves the TDH value from the hardware 1841 ************************************************************************/ 1842 static int 1843 ixv_sysctl_tdh_handler(SYSCTLFN_ARGS) 1844 { 1845 struct sysctlnode node = *rnode; 1846 struct tx_ring *txr = (struct tx_ring *)node.sysctl_data; 1847 uint32_t val; 1848 1849 if (!txr) 1850 return (0); 1851 1852 val = IXGBE_READ_REG(&txr->adapter->hw, IXGBE_VFTDH(txr->me)); 1853 node.sysctl_data = &val; 1854 return sysctl_lookup(SYSCTLFN_CALL(&node)); 1855 } /* ixv_sysctl_tdh_handler */ 1856 1857 /************************************************************************ 1858 * ixgbe_sysctl_tdt_handler - Transmit Descriptor Tail handler function 1859 * 1860 * Retrieves the TDT value from the hardware 1861 ************************************************************************/ 1862 static int 1863 ixv_sysctl_tdt_handler(SYSCTLFN_ARGS) 1864 { 1865 struct sysctlnode node = *rnode; 1866 struct tx_ring *txr = (struct tx_ring *)node.sysctl_data; 1867 uint32_t val; 1868 1869 if (!txr) 1870 return (0); 1871 1872 val = IXGBE_READ_REG(&txr->adapter->hw, IXGBE_VFTDT(txr->me)); 1873 node.sysctl_data = &val; 1874 return sysctl_lookup(SYSCTLFN_CALL(&node)); 1875 } /* ixv_sysctl_tdt_handler */ 1876 1877 /************************************************************************ 1878 * ixv_sysctl_rdh_handler - Receive Descriptor Head handler function 1879 * 1880 * Retrieves the RDH value from the hardware 1881 ************************************************************************/ 1882 static int 1883 ixv_sysctl_rdh_handler(SYSCTLFN_ARGS) 1884 { 1885 struct sysctlnode node = *rnode; 1886 struct rx_ring *rxr = (struct rx_ring *)node.sysctl_data; 1887 uint32_t val; 1888 1889 if (!rxr) 1890 return (0); 1891 1892 val = IXGBE_READ_REG(&rxr->adapter->hw, IXGBE_VFRDH(rxr->me)); 1893 node.sysctl_data = &val; 1894 return sysctl_lookup(SYSCTLFN_CALL(&node)); 1895 } /* ixv_sysctl_rdh_handler */ 1896 1897 /************************************************************************ 1898 * ixv_sysctl_rdt_handler - Receive Descriptor Tail handler function 1899 * 1900 * Retrieves the RDT value from the hardware 1901 ************************************************************************/ 1902 static int 1903 ixv_sysctl_rdt_handler(SYSCTLFN_ARGS) 1904 { 1905 struct sysctlnode node = *rnode; 1906 struct rx_ring *rxr = (struct rx_ring *)node.sysctl_data; 1907 uint32_t val; 1908 1909 if (!rxr) 1910 return (0); 1911 1912 val = IXGBE_READ_REG(&rxr->adapter->hw, IXGBE_VFRDT(rxr->me)); 1913 node.sysctl_data = &val; 1914 return sysctl_lookup(SYSCTLFN_CALL(&node)); 1915 } /* ixv_sysctl_rdt_handler */ 1916 1917 /************************************************************************ 1918 * ixv_setup_vlan_support 1919 ************************************************************************/ 1920 static void 1921 ixv_setup_vlan_support(struct adapter *adapter) 1922 { 1923 struct ethercom *ec = &adapter->osdep.ec; 1924 struct ixgbe_hw *hw = &adapter->hw; 1925 struct rx_ring *rxr; 1926 u32 ctrl, vid, vfta, retry; 1927 1928 /* 1929 * We get here thru init_locked, meaning 1930 * a soft reset, this has already cleared 1931 * the VFTA and other state, so if there 1932 * have been no vlan's registered do nothing. 1933 */ 1934 if (!VLAN_ATTACHED(ec)) 1935 return; 1936 1937 /* Enable the queues */ 1938 for (int i = 0; i < adapter->num_queues; i++) { 1939 rxr = &adapter->rx_rings[i]; 1940 ctrl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(rxr->me)); 1941 ctrl |= IXGBE_RXDCTL_VME; 1942 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(rxr->me), ctrl); 1943 /* 1944 * Let Rx path know that it needs to store VLAN tag 1945 * as part of extra mbuf info. 1946 */ 1947 rxr->vtag_strip = TRUE; 1948 } 1949 1950 #if 1 1951 /* XXX dirty hack. Enable all VIDs */ 1952 for (int i = 0; i < IXGBE_VFTA_SIZE; i++) 1953 adapter->shadow_vfta[i] = 0xffffffff; 1954 #endif 1955 /* 1956 * A soft reset zero's out the VFTA, so 1957 * we need to repopulate it now. 1958 */ 1959 for (int i = 0; i < IXGBE_VFTA_SIZE; i++) { 1960 if (adapter->shadow_vfta[i] == 0) 1961 continue; 1962 vfta = adapter->shadow_vfta[i]; 1963 /* 1964 * Reconstruct the vlan id's 1965 * based on the bits set in each 1966 * of the array ints. 1967 */ 1968 for (int j = 0; j < 32; j++) { 1969 retry = 0; 1970 if ((vfta & (1 << j)) == 0) 1971 continue; 1972 vid = (i * 32) + j; 1973 /* Call the shared code mailbox routine */ 1974 while (hw->mac.ops.set_vfta(hw, vid, 0, TRUE, FALSE)) { 1975 if (++retry > 5) 1976 break; 1977 } 1978 } 1979 } 1980 } /* ixv_setup_vlan_support */ 1981 1982 #if 0 /* XXX Badly need to overhaul vlan(4) on NetBSD. */ 1983 /************************************************************************ 1984 * ixv_register_vlan 1985 * 1986 * Run via a vlan config EVENT, it enables us to use the 1987 * HW Filter table since we can get the vlan id. This just 1988 * creates the entry in the soft version of the VFTA, init 1989 * will repopulate the real table. 1990 ************************************************************************/ 1991 static void 1992 ixv_register_vlan(void *arg, struct ifnet *ifp, u16 vtag) 1993 { 1994 struct adapter *adapter = ifp->if_softc; 1995 u16 index, bit; 1996 1997 if (ifp->if_softc != arg) /* Not our event */ 1998 return; 1999 2000 if ((vtag == 0) || (vtag > 4095)) /* Invalid */ 2001 return; 2002 2003 IXGBE_CORE_LOCK(adapter); 2004 index = (vtag >> 5) & 0x7F; 2005 bit = vtag & 0x1F; 2006 adapter->shadow_vfta[index] |= (1 << bit); 2007 /* Re-init to load the changes */ 2008 ixv_init_locked(adapter); 2009 IXGBE_CORE_UNLOCK(adapter); 2010 } /* ixv_register_vlan */ 2011 2012 /************************************************************************ 2013 * ixv_unregister_vlan 2014 * 2015 * Run via a vlan unconfig EVENT, remove our entry 2016 * in the soft vfta. 2017 ************************************************************************/ 2018 static void 2019 ixv_unregister_vlan(void *arg, struct ifnet *ifp, u16 vtag) 2020 { 2021 struct adapter *adapter = ifp->if_softc; 2022 u16 index, bit; 2023 2024 if (ifp->if_softc != arg) 2025 return; 2026 2027 if ((vtag == 0) || (vtag > 4095)) /* Invalid */ 2028 return; 2029 2030 IXGBE_CORE_LOCK(adapter); 2031 index = (vtag >> 5) & 0x7F; 2032 bit = vtag & 0x1F; 2033 adapter->shadow_vfta[index] &= ~(1 << bit); 2034 /* Re-init to load the changes */ 2035 ixv_init_locked(adapter); 2036 IXGBE_CORE_UNLOCK(adapter); 2037 } /* ixv_unregister_vlan */ 2038 #endif 2039 2040 /************************************************************************ 2041 * ixv_enable_intr 2042 ************************************************************************/ 2043 static void 2044 ixv_enable_intr(struct adapter *adapter) 2045 { 2046 struct ixgbe_hw *hw = &adapter->hw; 2047 struct ix_queue *que = adapter->queues; 2048 u32 mask; 2049 int i; 2050 2051 /* For VTEIAC */ 2052 mask = (1 << adapter->vector); 2053 for (i = 0; i < adapter->num_queues; i++, que++) 2054 mask |= (1 << que->msix); 2055 IXGBE_WRITE_REG(hw, IXGBE_VTEIAC, mask); 2056 2057 /* For VTEIMS */ 2058 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, (1 << adapter->vector)); 2059 que = adapter->queues; 2060 for (i = 0; i < adapter->num_queues; i++, que++) 2061 ixv_enable_queue(adapter, que->msix); 2062 2063 IXGBE_WRITE_FLUSH(hw); 2064 } /* ixv_enable_intr */ 2065 2066 /************************************************************************ 2067 * ixv_disable_intr 2068 ************************************************************************/ 2069 static void 2070 ixv_disable_intr(struct adapter *adapter) 2071 { 2072 struct ix_queue *que = adapter->queues; 2073 2074 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEIAC, 0); 2075 2076 /* disable interrupts other than queues */ 2077 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEIMC, adapter->vector); 2078 2079 for (int i = 0; i < adapter->num_queues; i++, que++) 2080 ixv_disable_queue(adapter, que->msix); 2081 2082 IXGBE_WRITE_FLUSH(&adapter->hw); 2083 } /* ixv_disable_intr */ 2084 2085 /************************************************************************ 2086 * ixv_set_ivar 2087 * 2088 * Setup the correct IVAR register for a particular MSI-X interrupt 2089 * - entry is the register array entry 2090 * - vector is the MSI-X vector for this queue 2091 * - type is RX/TX/MISC 2092 ************************************************************************/ 2093 static void 2094 ixv_set_ivar(struct adapter *adapter, u8 entry, u8 vector, s8 type) 2095 { 2096 struct ixgbe_hw *hw = &adapter->hw; 2097 u32 ivar, index; 2098 2099 vector |= IXGBE_IVAR_ALLOC_VAL; 2100 2101 if (type == -1) { /* MISC IVAR */ 2102 ivar = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC); 2103 ivar &= ~0xFF; 2104 ivar |= vector; 2105 IXGBE_WRITE_REG(hw, IXGBE_VTIVAR_MISC, ivar); 2106 } else { /* RX/TX IVARS */ 2107 index = (16 * (entry & 1)) + (8 * type); 2108 ivar = IXGBE_READ_REG(hw, IXGBE_VTIVAR(entry >> 1)); 2109 ivar &= ~(0xFF << index); 2110 ivar |= (vector << index); 2111 IXGBE_WRITE_REG(hw, IXGBE_VTIVAR(entry >> 1), ivar); 2112 } 2113 } /* ixv_set_ivar */ 2114 2115 /************************************************************************ 2116 * ixv_configure_ivars 2117 ************************************************************************/ 2118 static void 2119 ixv_configure_ivars(struct adapter *adapter) 2120 { 2121 struct ix_queue *que = adapter->queues; 2122 2123 /* XXX We should sync EITR value calculation with ixgbe.c? */ 2124 2125 for (int i = 0; i < adapter->num_queues; i++, que++) { 2126 /* First the RX queue entry */ 2127 ixv_set_ivar(adapter, i, que->msix, 0); 2128 /* ... and the TX */ 2129 ixv_set_ivar(adapter, i, que->msix, 1); 2130 /* Set an initial value in EITR */ 2131 ixv_eitr_write(que, IXGBE_EITR_DEFAULT); 2132 } 2133 2134 /* For the mailbox interrupt */ 2135 ixv_set_ivar(adapter, 1, adapter->vector, -1); 2136 } /* ixv_configure_ivars */ 2137 2138 2139 /************************************************************************ 2140 * ixv_save_stats 2141 * 2142 * The VF stats registers never have a truly virgin 2143 * starting point, so this routine tries to make an 2144 * artificial one, marking ground zero on attach as 2145 * it were. 2146 ************************************************************************/ 2147 static void 2148 ixv_save_stats(struct adapter *adapter) 2149 { 2150 struct ixgbevf_hw_stats *stats = &adapter->stats.vf; 2151 2152 if (stats->vfgprc.ev_count || stats->vfgptc.ev_count) { 2153 stats->saved_reset_vfgprc += 2154 stats->vfgprc.ev_count - stats->base_vfgprc; 2155 stats->saved_reset_vfgptc += 2156 stats->vfgptc.ev_count - stats->base_vfgptc; 2157 stats->saved_reset_vfgorc += 2158 stats->vfgorc.ev_count - stats->base_vfgorc; 2159 stats->saved_reset_vfgotc += 2160 stats->vfgotc.ev_count - stats->base_vfgotc; 2161 stats->saved_reset_vfmprc += 2162 stats->vfmprc.ev_count - stats->base_vfmprc; 2163 } 2164 } /* ixv_save_stats */ 2165 2166 /************************************************************************ 2167 * ixv_init_stats 2168 ************************************************************************/ 2169 static void 2170 ixv_init_stats(struct adapter *adapter) 2171 { 2172 struct ixgbe_hw *hw = &adapter->hw; 2173 2174 adapter->stats.vf.last_vfgprc = IXGBE_READ_REG(hw, IXGBE_VFGPRC); 2175 adapter->stats.vf.last_vfgorc = IXGBE_READ_REG(hw, IXGBE_VFGORC_LSB); 2176 adapter->stats.vf.last_vfgorc |= 2177 (((u64)(IXGBE_READ_REG(hw, IXGBE_VFGORC_MSB))) << 32); 2178 2179 adapter->stats.vf.last_vfgptc = IXGBE_READ_REG(hw, IXGBE_VFGPTC); 2180 adapter->stats.vf.last_vfgotc = IXGBE_READ_REG(hw, IXGBE_VFGOTC_LSB); 2181 adapter->stats.vf.last_vfgotc |= 2182 (((u64)(IXGBE_READ_REG(hw, IXGBE_VFGOTC_MSB))) << 32); 2183 2184 adapter->stats.vf.last_vfmprc = IXGBE_READ_REG(hw, IXGBE_VFMPRC); 2185 2186 adapter->stats.vf.base_vfgprc = adapter->stats.vf.last_vfgprc; 2187 adapter->stats.vf.base_vfgorc = adapter->stats.vf.last_vfgorc; 2188 adapter->stats.vf.base_vfgptc = adapter->stats.vf.last_vfgptc; 2189 adapter->stats.vf.base_vfgotc = adapter->stats.vf.last_vfgotc; 2190 adapter->stats.vf.base_vfmprc = adapter->stats.vf.last_vfmprc; 2191 } /* ixv_init_stats */ 2192 2193 #define UPDATE_STAT_32(reg, last, count) \ 2194 { \ 2195 u32 current = IXGBE_READ_REG(hw, (reg)); \ 2196 if (current < (last)) \ 2197 count.ev_count += 0x100000000LL; \ 2198 (last) = current; \ 2199 count.ev_count &= 0xFFFFFFFF00000000LL; \ 2200 count.ev_count |= current; \ 2201 } 2202 2203 #define UPDATE_STAT_36(lsb, msb, last, count) \ 2204 { \ 2205 u64 cur_lsb = IXGBE_READ_REG(hw, (lsb)); \ 2206 u64 cur_msb = IXGBE_READ_REG(hw, (msb)); \ 2207 u64 current = ((cur_msb << 32) | cur_lsb); \ 2208 if (current < (last)) \ 2209 count.ev_count += 0x1000000000LL; \ 2210 (last) = current; \ 2211 count.ev_count &= 0xFFFFFFF000000000LL; \ 2212 count.ev_count |= current; \ 2213 } 2214 2215 /************************************************************************ 2216 * ixv_update_stats - Update the board statistics counters. 2217 ************************************************************************/ 2218 void 2219 ixv_update_stats(struct adapter *adapter) 2220 { 2221 struct ixgbe_hw *hw = &adapter->hw; 2222 struct ixgbevf_hw_stats *stats = &adapter->stats.vf; 2223 2224 UPDATE_STAT_32(IXGBE_VFGPRC, stats->last_vfgprc, stats->vfgprc); 2225 UPDATE_STAT_32(IXGBE_VFGPTC, stats->last_vfgptc, stats->vfgptc); 2226 UPDATE_STAT_36(IXGBE_VFGORC_LSB, IXGBE_VFGORC_MSB, stats->last_vfgorc, 2227 stats->vfgorc); 2228 UPDATE_STAT_36(IXGBE_VFGOTC_LSB, IXGBE_VFGOTC_MSB, stats->last_vfgotc, 2229 stats->vfgotc); 2230 UPDATE_STAT_32(IXGBE_VFMPRC, stats->last_vfmprc, stats->vfmprc); 2231 2232 /* Fill out the OS statistics structure */ 2233 /* 2234 * NetBSD: Don't override if_{i|o}{packets|bytes|mcasts} with 2235 * adapter->stats counters. It's required to make ifconfig -z 2236 * (SOICZIFDATA) work. 2237 */ 2238 } /* ixv_update_stats */ 2239 2240 /************************************************************************ 2241 * ixv_sysctl_interrupt_rate_handler 2242 ************************************************************************/ 2243 static int 2244 ixv_sysctl_interrupt_rate_handler(SYSCTLFN_ARGS) 2245 { 2246 struct sysctlnode node = *rnode; 2247 struct ix_queue *que = (struct ix_queue *)node.sysctl_data; 2248 struct adapter *adapter = que->adapter; 2249 uint32_t reg, usec, rate; 2250 int error; 2251 2252 if (que == NULL) 2253 return 0; 2254 reg = IXGBE_READ_REG(&que->adapter->hw, IXGBE_VTEITR(que->msix)); 2255 usec = ((reg & 0x0FF8) >> 3); 2256 if (usec > 0) 2257 rate = 500000 / usec; 2258 else 2259 rate = 0; 2260 node.sysctl_data = &rate; 2261 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2262 if (error || newp == NULL) 2263 return error; 2264 reg &= ~0xfff; /* default, no limitation */ 2265 if (rate > 0 && rate < 500000) { 2266 if (rate < 1000) 2267 rate = 1000; 2268 reg |= ((4000000/rate) & 0xff8); 2269 /* 2270 * When RSC is used, ITR interval must be larger than 2271 * RSC_DELAY. Currently, we use 2us for RSC_DELAY. 2272 * The minimum value is always greater than 2us on 100M 2273 * (and 10M?(not documented)), but it's not on 1G and higher. 2274 */ 2275 if ((adapter->link_speed != IXGBE_LINK_SPEED_100_FULL) 2276 && (adapter->link_speed != IXGBE_LINK_SPEED_10_FULL)) { 2277 if ((adapter->num_queues > 1) 2278 && (reg < IXGBE_MIN_RSC_EITR_10G1G)) 2279 return EINVAL; 2280 } 2281 ixv_max_interrupt_rate = rate; 2282 } else 2283 ixv_max_interrupt_rate = 0; 2284 ixv_eitr_write(que, reg); 2285 2286 return (0); 2287 } /* ixv_sysctl_interrupt_rate_handler */ 2288 2289 const struct sysctlnode * 2290 ixv_sysctl_instance(struct adapter *adapter) 2291 { 2292 const char *dvname; 2293 struct sysctllog **log; 2294 int rc; 2295 const struct sysctlnode *rnode; 2296 2297 log = &adapter->sysctllog; 2298 dvname = device_xname(adapter->dev); 2299 2300 if ((rc = sysctl_createv(log, 0, NULL, &rnode, 2301 0, CTLTYPE_NODE, dvname, 2302 SYSCTL_DESCR("ixv information and settings"), 2303 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2304 goto err; 2305 2306 return rnode; 2307 err: 2308 printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc); 2309 return NULL; 2310 } 2311 2312 static void 2313 ixv_add_device_sysctls(struct adapter *adapter) 2314 { 2315 struct sysctllog **log; 2316 const struct sysctlnode *rnode, *cnode; 2317 device_t dev; 2318 2319 dev = adapter->dev; 2320 log = &adapter->sysctllog; 2321 2322 if ((rnode = ixv_sysctl_instance(adapter)) == NULL) { 2323 aprint_error_dev(dev, "could not create sysctl root\n"); 2324 return; 2325 } 2326 2327 if (sysctl_createv(log, 0, &rnode, &cnode, 2328 CTLFLAG_READWRITE, CTLTYPE_INT, 2329 "debug", SYSCTL_DESCR("Debug Info"), 2330 ixv_sysctl_debug, 0, (void *)adapter, 0, CTL_CREATE, CTL_EOL) != 0) 2331 aprint_error_dev(dev, "could not create sysctl\n"); 2332 2333 if (sysctl_createv(log, 0, &rnode, &cnode, 2334 CTLFLAG_READWRITE, CTLTYPE_BOOL, 2335 "enable_aim", SYSCTL_DESCR("Interrupt Moderation"), 2336 NULL, 0, &adapter->enable_aim, 0, CTL_CREATE, CTL_EOL) != 0) 2337 aprint_error_dev(dev, "could not create sysctl\n"); 2338 2339 if (sysctl_createv(log, 0, &rnode, &cnode, 2340 CTLFLAG_READWRITE, CTLTYPE_BOOL, 2341 "txrx_workqueue", SYSCTL_DESCR("Use workqueue for packet processing"), 2342 NULL, 0, &adapter->txrx_use_workqueue, 0, CTL_CREATE, CTL_EOL) != 0) 2343 aprint_error_dev(dev, "could not create sysctl\n"); 2344 } 2345 2346 /************************************************************************ 2347 * ixv_add_stats_sysctls - Add statistic sysctls for the VF. 2348 ************************************************************************/ 2349 static void 2350 ixv_add_stats_sysctls(struct adapter *adapter) 2351 { 2352 device_t dev = adapter->dev; 2353 struct tx_ring *txr = adapter->tx_rings; 2354 struct rx_ring *rxr = adapter->rx_rings; 2355 struct ixgbevf_hw_stats *stats = &adapter->stats.vf; 2356 struct ixgbe_hw *hw = &adapter->hw; 2357 const struct sysctlnode *rnode, *cnode; 2358 struct sysctllog **log = &adapter->sysctllog; 2359 const char *xname = device_xname(dev); 2360 2361 /* Driver Statistics */ 2362 evcnt_attach_dynamic(&adapter->efbig_tx_dma_setup, EVCNT_TYPE_MISC, 2363 NULL, xname, "Driver tx dma soft fail EFBIG"); 2364 evcnt_attach_dynamic(&adapter->mbuf_defrag_failed, EVCNT_TYPE_MISC, 2365 NULL, xname, "m_defrag() failed"); 2366 evcnt_attach_dynamic(&adapter->efbig2_tx_dma_setup, EVCNT_TYPE_MISC, 2367 NULL, xname, "Driver tx dma hard fail EFBIG"); 2368 evcnt_attach_dynamic(&adapter->einval_tx_dma_setup, EVCNT_TYPE_MISC, 2369 NULL, xname, "Driver tx dma hard fail EINVAL"); 2370 evcnt_attach_dynamic(&adapter->other_tx_dma_setup, EVCNT_TYPE_MISC, 2371 NULL, xname, "Driver tx dma hard fail other"); 2372 evcnt_attach_dynamic(&adapter->eagain_tx_dma_setup, EVCNT_TYPE_MISC, 2373 NULL, xname, "Driver tx dma soft fail EAGAIN"); 2374 evcnt_attach_dynamic(&adapter->enomem_tx_dma_setup, EVCNT_TYPE_MISC, 2375 NULL, xname, "Driver tx dma soft fail ENOMEM"); 2376 evcnt_attach_dynamic(&adapter->watchdog_events, EVCNT_TYPE_MISC, 2377 NULL, xname, "Watchdog timeouts"); 2378 evcnt_attach_dynamic(&adapter->tso_err, EVCNT_TYPE_MISC, 2379 NULL, xname, "TSO errors"); 2380 evcnt_attach_dynamic(&adapter->link_irq, EVCNT_TYPE_INTR, 2381 NULL, xname, "Link MSI-X IRQ Handled"); 2382 2383 for (int i = 0; i < adapter->num_queues; i++, rxr++, txr++) { 2384 snprintf(adapter->queues[i].evnamebuf, 2385 sizeof(adapter->queues[i].evnamebuf), "%s q%d", 2386 xname, i); 2387 snprintf(adapter->queues[i].namebuf, 2388 sizeof(adapter->queues[i].namebuf), "q%d", i); 2389 2390 if ((rnode = ixv_sysctl_instance(adapter)) == NULL) { 2391 aprint_error_dev(dev, "could not create sysctl root\n"); 2392 break; 2393 } 2394 2395 if (sysctl_createv(log, 0, &rnode, &rnode, 2396 0, CTLTYPE_NODE, 2397 adapter->queues[i].namebuf, SYSCTL_DESCR("Queue Name"), 2398 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL) != 0) 2399 break; 2400 2401 if (sysctl_createv(log, 0, &rnode, &cnode, 2402 CTLFLAG_READWRITE, CTLTYPE_INT, 2403 "interrupt_rate", SYSCTL_DESCR("Interrupt Rate"), 2404 ixv_sysctl_interrupt_rate_handler, 0, 2405 (void *)&adapter->queues[i], 0, CTL_CREATE, CTL_EOL) != 0) 2406 break; 2407 2408 if (sysctl_createv(log, 0, &rnode, &cnode, 2409 CTLFLAG_READONLY, CTLTYPE_INT, 2410 "txd_head", SYSCTL_DESCR("Transmit Descriptor Head"), 2411 ixv_sysctl_tdh_handler, 0, (void *)txr, 2412 0, CTL_CREATE, CTL_EOL) != 0) 2413 break; 2414 2415 if (sysctl_createv(log, 0, &rnode, &cnode, 2416 CTLFLAG_READONLY, CTLTYPE_INT, 2417 "txd_tail", SYSCTL_DESCR("Transmit Descriptor Tail"), 2418 ixv_sysctl_tdt_handler, 0, (void *)txr, 2419 0, CTL_CREATE, CTL_EOL) != 0) 2420 break; 2421 2422 evcnt_attach_dynamic(&adapter->queues[i].irqs, EVCNT_TYPE_INTR, 2423 NULL, adapter->queues[i].evnamebuf, "IRQs on queue"); 2424 evcnt_attach_dynamic(&adapter->queues[i].handleq, 2425 EVCNT_TYPE_MISC, NULL, adapter->queues[i].evnamebuf, 2426 "Handled queue in softint"); 2427 evcnt_attach_dynamic(&adapter->queues[i].req, EVCNT_TYPE_MISC, 2428 NULL, adapter->queues[i].evnamebuf, "Requeued in softint"); 2429 evcnt_attach_dynamic(&txr->tso_tx, EVCNT_TYPE_MISC, 2430 NULL, adapter->queues[i].evnamebuf, "TSO"); 2431 evcnt_attach_dynamic(&txr->no_desc_avail, EVCNT_TYPE_MISC, 2432 NULL, adapter->queues[i].evnamebuf, 2433 "Queue No Descriptor Available"); 2434 evcnt_attach_dynamic(&txr->total_packets, EVCNT_TYPE_MISC, 2435 NULL, adapter->queues[i].evnamebuf, 2436 "Queue Packets Transmitted"); 2437 #ifndef IXGBE_LEGACY_TX 2438 evcnt_attach_dynamic(&txr->pcq_drops, EVCNT_TYPE_MISC, 2439 NULL, adapter->queues[i].evnamebuf, 2440 "Packets dropped in pcq"); 2441 #endif 2442 2443 #ifdef LRO 2444 struct lro_ctrl *lro = &rxr->lro; 2445 #endif /* LRO */ 2446 2447 if (sysctl_createv(log, 0, &rnode, &cnode, 2448 CTLFLAG_READONLY, 2449 CTLTYPE_INT, 2450 "rxd_head", SYSCTL_DESCR("Receive Descriptor Head"), 2451 ixv_sysctl_rdh_handler, 0, (void *)rxr, 0, 2452 CTL_CREATE, CTL_EOL) != 0) 2453 break; 2454 2455 if (sysctl_createv(log, 0, &rnode, &cnode, 2456 CTLFLAG_READONLY, 2457 CTLTYPE_INT, 2458 "rxd_tail", SYSCTL_DESCR("Receive Descriptor Tail"), 2459 ixv_sysctl_rdt_handler, 0, (void *)rxr, 0, 2460 CTL_CREATE, CTL_EOL) != 0) 2461 break; 2462 2463 evcnt_attach_dynamic(&rxr->rx_packets, EVCNT_TYPE_MISC, 2464 NULL, adapter->queues[i].evnamebuf, "Queue Packets Received"); 2465 evcnt_attach_dynamic(&rxr->rx_bytes, EVCNT_TYPE_MISC, 2466 NULL, adapter->queues[i].evnamebuf, "Queue Bytes Received"); 2467 evcnt_attach_dynamic(&rxr->rx_copies, EVCNT_TYPE_MISC, 2468 NULL, adapter->queues[i].evnamebuf, "Copied RX Frames"); 2469 evcnt_attach_dynamic(&rxr->no_jmbuf, EVCNT_TYPE_MISC, 2470 NULL, adapter->queues[i].evnamebuf, "Rx no jumbo mbuf"); 2471 evcnt_attach_dynamic(&rxr->rx_discarded, EVCNT_TYPE_MISC, 2472 NULL, adapter->queues[i].evnamebuf, "Rx discarded"); 2473 #ifdef LRO 2474 SYSCTL_ADD_INT(ctx, queue_list, OID_AUTO, "lro_queued", 2475 CTLFLAG_RD, &lro->lro_queued, 0, 2476 "LRO Queued"); 2477 SYSCTL_ADD_INT(ctx, queue_list, OID_AUTO, "lro_flushed", 2478 CTLFLAG_RD, &lro->lro_flushed, 0, 2479 "LRO Flushed"); 2480 #endif /* LRO */ 2481 } 2482 2483 /* MAC stats get their own sub node */ 2484 2485 snprintf(stats->namebuf, 2486 sizeof(stats->namebuf), "%s MAC Statistics", xname); 2487 2488 evcnt_attach_dynamic(&stats->ipcs, EVCNT_TYPE_MISC, NULL, 2489 stats->namebuf, "rx csum offload - IP"); 2490 evcnt_attach_dynamic(&stats->l4cs, EVCNT_TYPE_MISC, NULL, 2491 stats->namebuf, "rx csum offload - L4"); 2492 evcnt_attach_dynamic(&stats->ipcs_bad, EVCNT_TYPE_MISC, NULL, 2493 stats->namebuf, "rx csum offload - IP bad"); 2494 evcnt_attach_dynamic(&stats->l4cs_bad, EVCNT_TYPE_MISC, NULL, 2495 stats->namebuf, "rx csum offload - L4 bad"); 2496 2497 /* Packet Reception Stats */ 2498 evcnt_attach_dynamic(&stats->vfgprc, EVCNT_TYPE_MISC, NULL, 2499 xname, "Good Packets Received"); 2500 evcnt_attach_dynamic(&stats->vfgorc, EVCNT_TYPE_MISC, NULL, 2501 xname, "Good Octets Received"); 2502 evcnt_attach_dynamic(&stats->vfmprc, EVCNT_TYPE_MISC, NULL, 2503 xname, "Multicast Packets Received"); 2504 evcnt_attach_dynamic(&stats->vfgptc, EVCNT_TYPE_MISC, NULL, 2505 xname, "Good Packets Transmitted"); 2506 evcnt_attach_dynamic(&stats->vfgotc, EVCNT_TYPE_MISC, NULL, 2507 xname, "Good Octets Transmitted"); 2508 2509 /* Mailbox Stats */ 2510 evcnt_attach_dynamic(&hw->mbx.stats.msgs_tx, EVCNT_TYPE_MISC, NULL, 2511 xname, "message TXs"); 2512 evcnt_attach_dynamic(&hw->mbx.stats.msgs_rx, EVCNT_TYPE_MISC, NULL, 2513 xname, "message RXs"); 2514 evcnt_attach_dynamic(&hw->mbx.stats.acks, EVCNT_TYPE_MISC, NULL, 2515 xname, "ACKs"); 2516 evcnt_attach_dynamic(&hw->mbx.stats.reqs, EVCNT_TYPE_MISC, NULL, 2517 xname, "REQs"); 2518 evcnt_attach_dynamic(&hw->mbx.stats.rsts, EVCNT_TYPE_MISC, NULL, 2519 xname, "RSTs"); 2520 2521 } /* ixv_add_stats_sysctls */ 2522 2523 /************************************************************************ 2524 * ixv_set_sysctl_value 2525 ************************************************************************/ 2526 static void 2527 ixv_set_sysctl_value(struct adapter *adapter, const char *name, 2528 const char *description, int *limit, int value) 2529 { 2530 device_t dev = adapter->dev; 2531 struct sysctllog **log; 2532 const struct sysctlnode *rnode, *cnode; 2533 2534 log = &adapter->sysctllog; 2535 if ((rnode = ixv_sysctl_instance(adapter)) == NULL) { 2536 aprint_error_dev(dev, "could not create sysctl root\n"); 2537 return; 2538 } 2539 if (sysctl_createv(log, 0, &rnode, &cnode, 2540 CTLFLAG_READWRITE, CTLTYPE_INT, 2541 name, SYSCTL_DESCR(description), 2542 NULL, 0, limit, 0, CTL_CREATE, CTL_EOL) != 0) 2543 aprint_error_dev(dev, "could not create sysctl\n"); 2544 *limit = value; 2545 } /* ixv_set_sysctl_value */ 2546 2547 /************************************************************************ 2548 * ixv_print_debug_info 2549 * 2550 * Called only when em_display_debug_stats is enabled. 2551 * Provides a way to take a look at important statistics 2552 * maintained by the driver and hardware. 2553 ************************************************************************/ 2554 static void 2555 ixv_print_debug_info(struct adapter *adapter) 2556 { 2557 device_t dev = adapter->dev; 2558 struct ixgbe_hw *hw = &adapter->hw; 2559 struct ix_queue *que = adapter->queues; 2560 struct rx_ring *rxr; 2561 struct tx_ring *txr; 2562 #ifdef LRO 2563 struct lro_ctrl *lro; 2564 #endif /* LRO */ 2565 2566 device_printf(dev, "Error Byte Count = %u \n", 2567 IXGBE_READ_REG(hw, IXGBE_ERRBC)); 2568 2569 for (int i = 0; i < adapter->num_queues; i++, que++) { 2570 txr = que->txr; 2571 rxr = que->rxr; 2572 #ifdef LRO 2573 lro = &rxr->lro; 2574 #endif /* LRO */ 2575 device_printf(dev, "QUE(%d) IRQs Handled: %lu\n", 2576 que->msix, (long)que->irqs.ev_count); 2577 device_printf(dev, "RX(%d) Packets Received: %lld\n", 2578 rxr->me, (long long)rxr->rx_packets.ev_count); 2579 device_printf(dev, "RX(%d) Bytes Received: %lu\n", 2580 rxr->me, (long)rxr->rx_bytes.ev_count); 2581 #ifdef LRO 2582 device_printf(dev, "RX(%d) LRO Queued= %lld\n", 2583 rxr->me, (long long)lro->lro_queued); 2584 device_printf(dev, "RX(%d) LRO Flushed= %lld\n", 2585 rxr->me, (long long)lro->lro_flushed); 2586 #endif /* LRO */ 2587 device_printf(dev, "TX(%d) Packets Sent: %lu\n", 2588 txr->me, (long)txr->total_packets.ev_count); 2589 device_printf(dev, "TX(%d) NO Desc Avail: %lu\n", 2590 txr->me, (long)txr->no_desc_avail.ev_count); 2591 } 2592 2593 device_printf(dev, "MBX IRQ Handled: %lu\n", 2594 (long)adapter->link_irq.ev_count); 2595 } /* ixv_print_debug_info */ 2596 2597 /************************************************************************ 2598 * ixv_sysctl_debug 2599 ************************************************************************/ 2600 static int 2601 ixv_sysctl_debug(SYSCTLFN_ARGS) 2602 { 2603 struct sysctlnode node; 2604 struct adapter *adapter; 2605 int error, result; 2606 2607 node = *rnode; 2608 node.sysctl_data = &result; 2609 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2610 2611 if (error || newp == NULL) 2612 return error; 2613 2614 if (result == 1) { 2615 adapter = (struct adapter *)node.sysctl_data; 2616 ixv_print_debug_info(adapter); 2617 } 2618 2619 return 0; 2620 } /* ixv_sysctl_debug */ 2621 2622 /************************************************************************ 2623 * ixv_init_device_features 2624 ************************************************************************/ 2625 static void 2626 ixv_init_device_features(struct adapter *adapter) 2627 { 2628 adapter->feat_cap = IXGBE_FEATURE_NETMAP 2629 | IXGBE_FEATURE_VF 2630 | IXGBE_FEATURE_RSS 2631 | IXGBE_FEATURE_LEGACY_TX; 2632 2633 /* A tad short on feature flags for VFs, atm. */ 2634 switch (adapter->hw.mac.type) { 2635 case ixgbe_mac_82599_vf: 2636 break; 2637 case ixgbe_mac_X540_vf: 2638 break; 2639 case ixgbe_mac_X550_vf: 2640 case ixgbe_mac_X550EM_x_vf: 2641 case ixgbe_mac_X550EM_a_vf: 2642 adapter->feat_cap |= IXGBE_FEATURE_NEEDS_CTXD; 2643 break; 2644 default: 2645 break; 2646 } 2647 2648 /* Enabled by default... */ 2649 /* Is a virtual function (VF) */ 2650 if (adapter->feat_cap & IXGBE_FEATURE_VF) 2651 adapter->feat_en |= IXGBE_FEATURE_VF; 2652 /* Netmap */ 2653 if (adapter->feat_cap & IXGBE_FEATURE_NETMAP) 2654 adapter->feat_en |= IXGBE_FEATURE_NETMAP; 2655 /* Receive-Side Scaling (RSS) */ 2656 if (adapter->feat_cap & IXGBE_FEATURE_RSS) 2657 adapter->feat_en |= IXGBE_FEATURE_RSS; 2658 /* Needs advanced context descriptor regardless of offloads req'd */ 2659 if (adapter->feat_cap & IXGBE_FEATURE_NEEDS_CTXD) 2660 adapter->feat_en |= IXGBE_FEATURE_NEEDS_CTXD; 2661 2662 /* Enabled via sysctl... */ 2663 /* Legacy (single queue) transmit */ 2664 if ((adapter->feat_cap & IXGBE_FEATURE_LEGACY_TX) && 2665 ixv_enable_legacy_tx) 2666 adapter->feat_en |= IXGBE_FEATURE_LEGACY_TX; 2667 } /* ixv_init_device_features */ 2668 2669 /************************************************************************ 2670 * ixv_shutdown - Shutdown entry point 2671 ************************************************************************/ 2672 #if 0 /* XXX NetBSD ought to register something like this through pmf(9) */ 2673 static int 2674 ixv_shutdown(device_t dev) 2675 { 2676 struct adapter *adapter = device_private(dev); 2677 IXGBE_CORE_LOCK(adapter); 2678 ixv_stop(adapter); 2679 IXGBE_CORE_UNLOCK(adapter); 2680 2681 return (0); 2682 } /* ixv_shutdown */ 2683 #endif 2684 2685 static int 2686 ixv_ifflags_cb(struct ethercom *ec) 2687 { 2688 struct ifnet *ifp = &ec->ec_if; 2689 struct adapter *adapter = ifp->if_softc; 2690 int change = ifp->if_flags ^ adapter->if_flags, rc = 0; 2691 2692 IXGBE_CORE_LOCK(adapter); 2693 2694 if (change != 0) 2695 adapter->if_flags = ifp->if_flags; 2696 2697 if ((change & ~(IFF_CANTCHANGE | IFF_DEBUG)) != 0) 2698 rc = ENETRESET; 2699 2700 /* Set up VLAN support and filter */ 2701 ixv_setup_vlan_support(adapter); 2702 2703 IXGBE_CORE_UNLOCK(adapter); 2704 2705 return rc; 2706 } 2707 2708 2709 /************************************************************************ 2710 * ixv_ioctl - Ioctl entry point 2711 * 2712 * Called when the user wants to configure the interface. 2713 * 2714 * return 0 on success, positive on failure 2715 ************************************************************************/ 2716 static int 2717 ixv_ioctl(struct ifnet *ifp, u_long command, void *data) 2718 { 2719 struct adapter *adapter = ifp->if_softc; 2720 struct ifcapreq *ifcr = data; 2721 struct ifreq *ifr = data; 2722 int error = 0; 2723 int l4csum_en; 2724 const int l4csum = IFCAP_CSUM_TCPv4_Rx|IFCAP_CSUM_UDPv4_Rx| 2725 IFCAP_CSUM_TCPv6_Rx|IFCAP_CSUM_UDPv6_Rx; 2726 2727 switch (command) { 2728 case SIOCSIFFLAGS: 2729 IOCTL_DEBUGOUT("ioctl: SIOCSIFFLAGS (Set Interface Flags)"); 2730 break; 2731 case SIOCADDMULTI: 2732 case SIOCDELMULTI: 2733 IOCTL_DEBUGOUT("ioctl: SIOC(ADD|DEL)MULTI"); 2734 break; 2735 case SIOCSIFMEDIA: 2736 case SIOCGIFMEDIA: 2737 IOCTL_DEBUGOUT("ioctl: SIOCxIFMEDIA (Get/Set Interface Media)"); 2738 break; 2739 case SIOCSIFCAP: 2740 IOCTL_DEBUGOUT("ioctl: SIOCSIFCAP (Set Capabilities)"); 2741 break; 2742 case SIOCSIFMTU: 2743 IOCTL_DEBUGOUT("ioctl: SIOCSIFMTU (Set Interface MTU)"); 2744 break; 2745 default: 2746 IOCTL_DEBUGOUT1("ioctl: UNKNOWN (0x%X)", (int)command); 2747 break; 2748 } 2749 2750 switch (command) { 2751 case SIOCSIFMEDIA: 2752 case SIOCGIFMEDIA: 2753 return ifmedia_ioctl(ifp, ifr, &adapter->media, command); 2754 case SIOCSIFCAP: 2755 /* Layer-4 Rx checksum offload has to be turned on and 2756 * off as a unit. 2757 */ 2758 l4csum_en = ifcr->ifcr_capenable & l4csum; 2759 if (l4csum_en != l4csum && l4csum_en != 0) 2760 return EINVAL; 2761 /*FALLTHROUGH*/ 2762 case SIOCADDMULTI: 2763 case SIOCDELMULTI: 2764 case SIOCSIFFLAGS: 2765 case SIOCSIFMTU: 2766 default: 2767 if ((error = ether_ioctl(ifp, command, data)) != ENETRESET) 2768 return error; 2769 if ((ifp->if_flags & IFF_RUNNING) == 0) 2770 ; 2771 else if (command == SIOCSIFCAP || command == SIOCSIFMTU) { 2772 IXGBE_CORE_LOCK(adapter); 2773 ixv_init_locked(adapter); 2774 IXGBE_CORE_UNLOCK(adapter); 2775 } else if (command == SIOCADDMULTI || command == SIOCDELMULTI) { 2776 /* 2777 * Multicast list has changed; set the hardware filter 2778 * accordingly. 2779 */ 2780 IXGBE_CORE_LOCK(adapter); 2781 ixv_disable_intr(adapter); 2782 ixv_set_multi(adapter); 2783 ixv_enable_intr(adapter); 2784 IXGBE_CORE_UNLOCK(adapter); 2785 } 2786 return 0; 2787 } 2788 } /* ixv_ioctl */ 2789 2790 /************************************************************************ 2791 * ixv_init 2792 ************************************************************************/ 2793 static int 2794 ixv_init(struct ifnet *ifp) 2795 { 2796 struct adapter *adapter = ifp->if_softc; 2797 2798 IXGBE_CORE_LOCK(adapter); 2799 ixv_init_locked(adapter); 2800 IXGBE_CORE_UNLOCK(adapter); 2801 2802 return 0; 2803 } /* ixv_init */ 2804 2805 /************************************************************************ 2806 * ixv_handle_que 2807 ************************************************************************/ 2808 static void 2809 ixv_handle_que(void *context) 2810 { 2811 struct ix_queue *que = context; 2812 struct adapter *adapter = que->adapter; 2813 struct tx_ring *txr = que->txr; 2814 struct ifnet *ifp = adapter->ifp; 2815 bool more; 2816 2817 que->handleq.ev_count++; 2818 2819 if (ifp->if_flags & IFF_RUNNING) { 2820 more = ixgbe_rxeof(que); 2821 IXGBE_TX_LOCK(txr); 2822 more |= ixgbe_txeof(txr); 2823 if (!(adapter->feat_en & IXGBE_FEATURE_LEGACY_TX)) 2824 if (!ixgbe_mq_ring_empty(ifp, txr->txr_interq)) 2825 ixgbe_mq_start_locked(ifp, txr); 2826 /* Only for queue 0 */ 2827 /* NetBSD still needs this for CBQ */ 2828 if ((&adapter->queues[0] == que) 2829 && (!ixgbe_legacy_ring_empty(ifp, NULL))) 2830 ixgbe_legacy_start_locked(ifp, txr); 2831 IXGBE_TX_UNLOCK(txr); 2832 if (more) { 2833 que->req.ev_count++; 2834 if (adapter->txrx_use_workqueue) { 2835 /* 2836 * "enqueued flag" is not required here 2837 * the same as ixg(4). See ixgbe_msix_que(). 2838 */ 2839 workqueue_enqueue(adapter->que_wq, 2840 &que->wq_cookie, curcpu()); 2841 } else 2842 softint_schedule(que->que_si); 2843 return; 2844 } 2845 } 2846 2847 /* Re-enable this interrupt */ 2848 ixv_enable_queue(adapter, que->msix); 2849 2850 return; 2851 } /* ixv_handle_que */ 2852 2853 /************************************************************************ 2854 * ixv_handle_que_work 2855 ************************************************************************/ 2856 static void 2857 ixv_handle_que_work(struct work *wk, void *context) 2858 { 2859 struct ix_queue *que = container_of(wk, struct ix_queue, wq_cookie); 2860 2861 /* 2862 * "enqueued flag" is not required here the same as ixg(4). 2863 * See ixgbe_msix_que(). 2864 */ 2865 ixv_handle_que(que); 2866 } 2867 2868 /************************************************************************ 2869 * ixv_allocate_msix - Setup MSI-X Interrupt resources and handlers 2870 ************************************************************************/ 2871 static int 2872 ixv_allocate_msix(struct adapter *adapter, const struct pci_attach_args *pa) 2873 { 2874 device_t dev = adapter->dev; 2875 struct ix_queue *que = adapter->queues; 2876 struct tx_ring *txr = adapter->tx_rings; 2877 int error, msix_ctrl, rid, vector = 0; 2878 pci_chipset_tag_t pc; 2879 pcitag_t tag; 2880 char intrbuf[PCI_INTRSTR_LEN]; 2881 char wqname[MAXCOMLEN]; 2882 char intr_xname[32]; 2883 const char *intrstr = NULL; 2884 kcpuset_t *affinity; 2885 int cpu_id = 0; 2886 2887 pc = adapter->osdep.pc; 2888 tag = adapter->osdep.tag; 2889 2890 adapter->osdep.nintrs = adapter->num_queues + 1; 2891 if (pci_msix_alloc_exact(pa, &adapter->osdep.intrs, 2892 adapter->osdep.nintrs) != 0) { 2893 aprint_error_dev(dev, 2894 "failed to allocate MSI-X interrupt\n"); 2895 return (ENXIO); 2896 } 2897 2898 kcpuset_create(&affinity, false); 2899 for (int i = 0; i < adapter->num_queues; i++, vector++, que++, txr++) { 2900 snprintf(intr_xname, sizeof(intr_xname), "%s TXRX%d", 2901 device_xname(dev), i); 2902 intrstr = pci_intr_string(pc, adapter->osdep.intrs[i], intrbuf, 2903 sizeof(intrbuf)); 2904 #ifdef IXGBE_MPSAFE 2905 pci_intr_setattr(pc, &adapter->osdep.intrs[i], PCI_INTR_MPSAFE, 2906 true); 2907 #endif 2908 /* Set the handler function */ 2909 que->res = adapter->osdep.ihs[i] = pci_intr_establish_xname(pc, 2910 adapter->osdep.intrs[i], IPL_NET, ixv_msix_que, que, 2911 intr_xname); 2912 if (que->res == NULL) { 2913 pci_intr_release(pc, adapter->osdep.intrs, 2914 adapter->osdep.nintrs); 2915 aprint_error_dev(dev, 2916 "Failed to register QUE handler\n"); 2917 kcpuset_destroy(affinity); 2918 return (ENXIO); 2919 } 2920 que->msix = vector; 2921 adapter->active_queues |= (u64)(1 << que->msix); 2922 2923 cpu_id = i; 2924 /* Round-robin affinity */ 2925 kcpuset_zero(affinity); 2926 kcpuset_set(affinity, cpu_id % ncpu); 2927 error = interrupt_distribute(adapter->osdep.ihs[i], affinity, 2928 NULL); 2929 aprint_normal_dev(dev, "for TX/RX, interrupting at %s", 2930 intrstr); 2931 if (error == 0) 2932 aprint_normal(", bound queue %d to cpu %d\n", 2933 i, cpu_id % ncpu); 2934 else 2935 aprint_normal("\n"); 2936 2937 #ifndef IXGBE_LEGACY_TX 2938 txr->txr_si 2939 = softint_establish(SOFTINT_NET | IXGBE_SOFTINFT_FLAGS, 2940 ixgbe_deferred_mq_start, txr); 2941 #endif 2942 que->que_si 2943 = softint_establish(SOFTINT_NET | IXGBE_SOFTINFT_FLAGS, 2944 ixv_handle_que, que); 2945 if (que->que_si == NULL) { 2946 aprint_error_dev(dev, 2947 "could not establish software interrupt\n"); 2948 } 2949 } 2950 snprintf(wqname, sizeof(wqname), "%sdeferTx", device_xname(dev)); 2951 error = workqueue_create(&adapter->txr_wq, wqname, 2952 ixgbe_deferred_mq_start_work, adapter, IXGBE_WORKQUEUE_PRI, IPL_NET, 2953 IXGBE_WORKQUEUE_FLAGS); 2954 if (error) { 2955 aprint_error_dev(dev, "couldn't create workqueue for deferred Tx\n"); 2956 } 2957 adapter->txr_wq_enqueued = percpu_alloc(sizeof(u_int)); 2958 2959 snprintf(wqname, sizeof(wqname), "%sTxRx", device_xname(dev)); 2960 error = workqueue_create(&adapter->que_wq, wqname, 2961 ixv_handle_que_work, adapter, IXGBE_WORKQUEUE_PRI, IPL_NET, 2962 IXGBE_WORKQUEUE_FLAGS); 2963 if (error) { 2964 aprint_error_dev(dev, 2965 "couldn't create workqueue\n"); 2966 } 2967 2968 /* and Mailbox */ 2969 cpu_id++; 2970 snprintf(intr_xname, sizeof(intr_xname), "%s link", device_xname(dev)); 2971 adapter->vector = vector; 2972 intrstr = pci_intr_string(pc, adapter->osdep.intrs[vector], intrbuf, 2973 sizeof(intrbuf)); 2974 #ifdef IXGBE_MPSAFE 2975 pci_intr_setattr(pc, &adapter->osdep.intrs[vector], PCI_INTR_MPSAFE, 2976 true); 2977 #endif 2978 /* Set the mbx handler function */ 2979 adapter->osdep.ihs[vector] = pci_intr_establish_xname(pc, 2980 adapter->osdep.intrs[vector], IPL_NET, ixv_msix_mbx, adapter, 2981 intr_xname); 2982 if (adapter->osdep.ihs[vector] == NULL) { 2983 adapter->res = NULL; 2984 aprint_error_dev(dev, "Failed to register LINK handler\n"); 2985 kcpuset_destroy(affinity); 2986 return (ENXIO); 2987 } 2988 /* Round-robin affinity */ 2989 kcpuset_zero(affinity); 2990 kcpuset_set(affinity, cpu_id % ncpu); 2991 error = interrupt_distribute(adapter->osdep.ihs[vector], affinity,NULL); 2992 2993 aprint_normal_dev(dev, 2994 "for link, interrupting at %s", intrstr); 2995 if (error == 0) 2996 aprint_normal(", affinity to cpu %d\n", cpu_id % ncpu); 2997 else 2998 aprint_normal("\n"); 2999 3000 /* Tasklets for Mailbox */ 3001 adapter->link_si = softint_establish(SOFTINT_NET |IXGBE_SOFTINFT_FLAGS, 3002 ixv_handle_link, adapter); 3003 /* 3004 * Due to a broken design QEMU will fail to properly 3005 * enable the guest for MSI-X unless the vectors in 3006 * the table are all set up, so we must rewrite the 3007 * ENABLE in the MSI-X control register again at this 3008 * point to cause it to successfully initialize us. 3009 */ 3010 if (adapter->hw.mac.type == ixgbe_mac_82599_vf) { 3011 pci_get_capability(pc, tag, PCI_CAP_MSIX, &rid, NULL); 3012 rid += PCI_MSIX_CTL; 3013 msix_ctrl = pci_conf_read(pc, tag, rid); 3014 msix_ctrl |= PCI_MSIX_CTL_ENABLE; 3015 pci_conf_write(pc, tag, rid, msix_ctrl); 3016 } 3017 3018 kcpuset_destroy(affinity); 3019 return (0); 3020 } /* ixv_allocate_msix */ 3021 3022 /************************************************************************ 3023 * ixv_configure_interrupts - Setup MSI-X resources 3024 * 3025 * Note: The VF device MUST use MSI-X, there is no fallback. 3026 ************************************************************************/ 3027 static int 3028 ixv_configure_interrupts(struct adapter *adapter) 3029 { 3030 device_t dev = adapter->dev; 3031 int want, queues, msgs; 3032 3033 /* Must have at least 2 MSI-X vectors */ 3034 msgs = pci_msix_count(adapter->osdep.pc, adapter->osdep.tag); 3035 if (msgs < 2) { 3036 aprint_error_dev(dev, "MSIX config error\n"); 3037 return (ENXIO); 3038 } 3039 msgs = MIN(msgs, IXG_MAX_NINTR); 3040 3041 /* Figure out a reasonable auto config value */ 3042 queues = (ncpu > (msgs - 1)) ? (msgs - 1) : ncpu; 3043 3044 if (ixv_num_queues != 0) 3045 queues = ixv_num_queues; 3046 else if ((ixv_num_queues == 0) && (queues > IXGBE_VF_MAX_TX_QUEUES)) 3047 queues = IXGBE_VF_MAX_TX_QUEUES; 3048 3049 /* 3050 * Want vectors for the queues, 3051 * plus an additional for mailbox. 3052 */ 3053 want = queues + 1; 3054 if (msgs >= want) 3055 msgs = want; 3056 else { 3057 aprint_error_dev(dev, 3058 "MSI-X Configuration Problem, " 3059 "%d vectors but %d queues wanted!\n", 3060 msgs, want); 3061 return -1; 3062 } 3063 3064 adapter->msix_mem = (void *)1; /* XXX */ 3065 aprint_normal_dev(dev, 3066 "Using MSI-X interrupts with %d vectors\n", msgs); 3067 adapter->num_queues = queues; 3068 3069 return (0); 3070 } /* ixv_configure_interrupts */ 3071 3072 3073 /************************************************************************ 3074 * ixv_handle_link - Tasklet handler for MSI-X MBX interrupts 3075 * 3076 * Done outside of interrupt context since the driver might sleep 3077 ************************************************************************/ 3078 static void 3079 ixv_handle_link(void *context) 3080 { 3081 struct adapter *adapter = context; 3082 3083 adapter->hw.mac.ops.check_link(&adapter->hw, &adapter->link_speed, 3084 &adapter->link_up, FALSE); 3085 ixv_update_link_status(adapter); 3086 } /* ixv_handle_link */ 3087 3088 /************************************************************************ 3089 * ixv_check_link - Used in the local timer to poll for link changes 3090 ************************************************************************/ 3091 static void 3092 ixv_check_link(struct adapter *adapter) 3093 { 3094 adapter->hw.mac.get_link_status = TRUE; 3095 3096 adapter->hw.mac.ops.check_link(&adapter->hw, &adapter->link_speed, 3097 &adapter->link_up, FALSE); 3098 ixv_update_link_status(adapter); 3099 } /* ixv_check_link */ 3100
Indexes created Tue Sep 30 20:09:53 GMT 2025