1/******************************************************************************* 2 3Copyright (c) 2001-2004, Intel Corporation 4All rights reserved. 5 6Redistribution and use in source and binary forms, with or without 7modification, are permitted provided that the following conditions are met: 8 9 1. Redistributions of source code must retain the above copyright notice, 10 this list of conditions and the following disclaimer. 11 12 2. Redistributions in binary form must reproduce the above copyright 13 notice, this list of conditions and the following disclaimer in the 14 documentation and/or other materials provided with the distribution. 15 16 3. Neither the name of the Intel Corporation nor the names of its 17 contributors may be used to endorse or promote products derived from 18 this software without specific prior written permission. 19 20THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 21AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 24LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30POSSIBILITY OF SUCH DAMAGE. 31 32***************************************************************************/ 33 34/*$FreeBSD: releng/10.2/sys/dev/ixgb/if_ixgb.c 254263 2013-08-12 23:30:01Z scottl $*/ 35 36#ifdef HAVE_KERNEL_OPTION_HEADERS 37#include "opt_device_polling.h" 38#endif 39 40#include <dev/ixgb/if_ixgb.h> 41 42/********************************************************************* 43 * Set this to one to display debug statistics 44 *********************************************************************/ 45int ixgb_display_debug_stats = 0; 46 47/********************************************************************* 48 * Linked list of board private structures for all NICs found 49 *********************************************************************/ 50 51struct adapter *ixgb_adapter_list = NULL; 52 53 54 55/********************************************************************* 56 * Driver version 57 *********************************************************************/ 58 59char ixgb_driver_version[] = "1.0.6"; 60char ixgb_copyright[] = "Copyright (c) 2001-2004 Intel Corporation."; 61 62/********************************************************************* 63 * PCI Device ID Table 64 * 65 * Used by probe to select devices to load on 66 * Last field stores an index into ixgb_strings 67 * Last entry must be all 0s 68 * 69 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, String Index } 70 *********************************************************************/ 71 72static ixgb_vendor_info_t ixgb_vendor_info_array[] = 73{ 74 /* Intel(R) PRO/10000 Network Connection */ 75 {IXGB_VENDOR_ID, IXGB_DEVICE_ID_82597EX, PCI_ANY_ID, PCI_ANY_ID, 0}, 76 {IXGB_VENDOR_ID, IXGB_DEVICE_ID_82597EX_SR, PCI_ANY_ID, PCI_ANY_ID, 0}, 77 /* required last entry */ 78 {0, 0, 0, 0, 0} 79}; 80 81/********************************************************************* 82 * Table of branding strings for all supported NICs. 83 *********************************************************************/ 84 85static char *ixgb_strings[] = { 86 "Intel(R) PRO/10GbE Network Driver" 87}; 88 89/********************************************************************* 90 * Function prototypes 91 *********************************************************************/ 92static int ixgb_probe(device_t); 93static int ixgb_attach(device_t); 94static int ixgb_detach(device_t); 95static int ixgb_shutdown(device_t); 96static void ixgb_intr(void *); 97static void ixgb_start(struct ifnet *); 98static void ixgb_start_locked(struct ifnet *); 99static int ixgb_ioctl(struct ifnet *, IOCTL_CMD_TYPE, caddr_t); 100static void ixgb_watchdog(struct adapter *); 101static void ixgb_init(void *); 102static void ixgb_init_locked(struct adapter *); 103static void ixgb_stop(void *); 104static void ixgb_media_status(struct ifnet *, struct ifmediareq *); 105static int ixgb_media_change(struct ifnet *); 106static void ixgb_identify_hardware(struct adapter *); 107static int ixgb_allocate_pci_resources(struct adapter *); 108static void ixgb_free_pci_resources(struct adapter *); 109static void ixgb_local_timer(void *); 110static int ixgb_hardware_init(struct adapter *); 111static int ixgb_setup_interface(device_t, struct adapter *); 112static int ixgb_setup_transmit_structures(struct adapter *); 113static void ixgb_initialize_transmit_unit(struct adapter *); 114static int ixgb_setup_receive_structures(struct adapter *); 115static void ixgb_initialize_receive_unit(struct adapter *); 116static void ixgb_enable_intr(struct adapter *); 117static void ixgb_disable_intr(struct adapter *); 118static void ixgb_free_transmit_structures(struct adapter *); 119static void ixgb_free_receive_structures(struct adapter *); 120static void ixgb_update_stats_counters(struct adapter *); 121static void ixgb_clean_transmit_interrupts(struct adapter *); 122static int ixgb_allocate_receive_structures(struct adapter *); 123static int ixgb_allocate_transmit_structures(struct adapter *); 124static int ixgb_process_receive_interrupts(struct adapter *, int); 125static void 126ixgb_receive_checksum(struct adapter *, 127 struct ixgb_rx_desc * rx_desc, 128 struct mbuf *); 129static void 130ixgb_transmit_checksum_setup(struct adapter *, 131 struct mbuf *, 132 u_int8_t *); 133static void ixgb_set_promisc(struct adapter *); 134static void ixgb_disable_promisc(struct adapter *); 135static void ixgb_set_multi(struct adapter *); 136static void ixgb_print_hw_stats(struct adapter *); 137static void ixgb_print_link_status(struct adapter *); 138static int 139ixgb_get_buf(int i, struct adapter *, 140 struct mbuf *); 141static void ixgb_enable_vlans(struct adapter * adapter); 142static int ixgb_encap(struct adapter * adapter, struct mbuf * m_head); 143static int ixgb_sysctl_stats(SYSCTL_HANDLER_ARGS); 144static int 145ixgb_dma_malloc(struct adapter *, bus_size_t, 146 struct ixgb_dma_alloc *, int); 147static void ixgb_dma_free(struct adapter *, struct ixgb_dma_alloc *); 148#ifdef DEVICE_POLLING 149static poll_handler_t ixgb_poll; 150#endif 151 152/********************************************************************* 153 * FreeBSD Device Interface Entry Points 154 *********************************************************************/ 155 156static device_method_t ixgb_methods[] = { 157 /* Device interface */ 158 DEVMETHOD(device_probe, ixgb_probe), 159 DEVMETHOD(device_attach, ixgb_attach), 160 DEVMETHOD(device_detach, ixgb_detach), 161 DEVMETHOD(device_shutdown, ixgb_shutdown), 162 163 DEVMETHOD_END 164}; 165 166static driver_t ixgb_driver = { 167 "ixgb", ixgb_methods, sizeof(struct adapter), 168}; 169 170static devclass_t ixgb_devclass; 171DRIVER_MODULE(ixgb, pci, ixgb_driver, ixgb_devclass, 0, 0); 172 173MODULE_DEPEND(ixgb, pci, 1, 1, 1); 174MODULE_DEPEND(ixgb, ether, 1, 1, 1); 175 176/* some defines for controlling descriptor fetches in h/w */ 177#define RXDCTL_PTHRESH_DEFAULT 128 /* chip considers prefech below this */ 178#define RXDCTL_HTHRESH_DEFAULT 16 /* chip will only prefetch if tail is 179 * pushed this many descriptors from 180 * head */ 181#define RXDCTL_WTHRESH_DEFAULT 0 /* chip writes back at this many or RXT0 */ 182 183 184/********************************************************************* 185 * Device identification routine 186 * 187 * ixgb_probe determines if the driver should be loaded on 188 * adapter based on PCI vendor/device id of the adapter. 189 * 190 * return 0 on success, positive on failure 191 *********************************************************************/ 192 193static int 194ixgb_probe(device_t dev) 195{ 196 ixgb_vendor_info_t *ent; 197 198 u_int16_t pci_vendor_id = 0; 199 u_int16_t pci_device_id = 0; 200 u_int16_t pci_subvendor_id = 0; 201 u_int16_t pci_subdevice_id = 0; 202 char adapter_name[60]; 203 204 INIT_DEBUGOUT("ixgb_probe: begin"); 205 206 pci_vendor_id = pci_get_vendor(dev); 207 if (pci_vendor_id != IXGB_VENDOR_ID) 208 return (ENXIO); 209 210 pci_device_id = pci_get_device(dev); 211 pci_subvendor_id = pci_get_subvendor(dev); 212 pci_subdevice_id = pci_get_subdevice(dev); 213 214 ent = ixgb_vendor_info_array; 215 while (ent->vendor_id != 0) { 216 if ((pci_vendor_id == ent->vendor_id) && 217 (pci_device_id == ent->device_id) && 218 219 ((pci_subvendor_id == ent->subvendor_id) || 220 (ent->subvendor_id == PCI_ANY_ID)) && 221 222 ((pci_subdevice_id == ent->subdevice_id) || 223 (ent->subdevice_id == PCI_ANY_ID))) { 224 sprintf(adapter_name, "%s, Version - %s", 225 ixgb_strings[ent->index], 226 ixgb_driver_version); 227 device_set_desc_copy(dev, adapter_name); 228 return (BUS_PROBE_DEFAULT); 229 } 230 ent++; 231 } 232 233 return (ENXIO); 234} 235 236/********************************************************************* 237 * Device initialization routine 238 * 239 * The attach entry point is called when the driver is being loaded. 240 * This routine identifies the type of hardware, allocates all resources 241 * and initializes the hardware. 242 * 243 * return 0 on success, positive on failure 244 *********************************************************************/ 245 246static int 247ixgb_attach(device_t dev) 248{ 249 struct adapter *adapter; 250 int tsize, rsize; 251 int error = 0; 252 253 device_printf(dev, "%s\n", ixgb_copyright); 254 INIT_DEBUGOUT("ixgb_attach: begin"); 255 256 /* Allocate, clear, and link in our adapter structure */ 257 if (!(adapter = device_get_softc(dev))) { 258 device_printf(dev, "adapter structure allocation failed\n"); 259 return (ENOMEM); 260 } 261 bzero(adapter, sizeof(struct adapter)); 262 adapter->dev = dev; 263 adapter->osdep.dev = dev; 264 IXGB_LOCK_INIT(adapter, device_get_nameunit(dev)); 265 266 if (ixgb_adapter_list != NULL) 267 ixgb_adapter_list->prev = adapter; 268 adapter->next = ixgb_adapter_list; 269 ixgb_adapter_list = adapter; 270 271 /* SYSCTL APIs */ 272 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 273 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), 274 OID_AUTO, "stats", CTLTYPE_INT | CTLFLAG_RW, 275 (void *)adapter, 0, 276 ixgb_sysctl_stats, "I", "Statistics"); 277 278 callout_init_mtx(&adapter->timer, &adapter->mtx, 0); 279 280 /* Determine hardware revision */ 281 ixgb_identify_hardware(adapter); 282 283 /* Parameters (to be read from user) */ 284 adapter->num_tx_desc = IXGB_MAX_TXD; 285 adapter->num_rx_desc = IXGB_MAX_RXD; 286 adapter->tx_int_delay = TIDV; 287 adapter->rx_int_delay = RDTR; 288 adapter->rx_buffer_len = IXGB_RXBUFFER_2048; 289 290 adapter->hw.fc.high_water = FCRTH; 291 adapter->hw.fc.low_water = FCRTL; 292 adapter->hw.fc.pause_time = FCPAUSE; 293 adapter->hw.fc.send_xon = TRUE; 294 adapter->hw.fc.type = FLOW_CONTROL; 295 296 297 /* Set the max frame size assuming standard ethernet sized frames */ 298 adapter->hw.max_frame_size = 299 ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN; 300 301 if (ixgb_allocate_pci_resources(adapter)) { 302 device_printf(dev, "Allocation of PCI resources failed\n"); 303 error = ENXIO; 304 goto err_pci; 305 } 306 tsize = IXGB_ROUNDUP(adapter->num_tx_desc * 307 sizeof(struct ixgb_tx_desc), 4096); 308 309 /* Allocate Transmit Descriptor ring */ 310 if (ixgb_dma_malloc(adapter, tsize, &adapter->txdma, BUS_DMA_NOWAIT)) { 311 device_printf(dev, "Unable to allocate TxDescriptor memory\n"); 312 error = ENOMEM; 313 goto err_tx_desc; 314 } 315 adapter->tx_desc_base = (struct ixgb_tx_desc *) adapter->txdma.dma_vaddr; 316 317 rsize = IXGB_ROUNDUP(adapter->num_rx_desc * 318 sizeof(struct ixgb_rx_desc), 4096); 319 320 /* Allocate Receive Descriptor ring */ 321 if (ixgb_dma_malloc(adapter, rsize, &adapter->rxdma, BUS_DMA_NOWAIT)) { 322 device_printf(dev, "Unable to allocate rx_desc memory\n"); 323 error = ENOMEM; 324 goto err_rx_desc; 325 } 326 adapter->rx_desc_base = (struct ixgb_rx_desc *) adapter->rxdma.dma_vaddr; 327 328 /* Allocate multicast array memory. */ 329 adapter->mta = malloc(sizeof(u_int8_t) * IXGB_ETH_LENGTH_OF_ADDRESS * 330 MAX_NUM_MULTICAST_ADDRESSES, M_DEVBUF, M_NOWAIT); 331 if (adapter->mta == NULL) { 332 device_printf(dev, "Can not allocate multicast setup array\n"); 333 error = ENOMEM; 334 goto err_hw_init; 335 } 336 337 /* Initialize the hardware */ 338 if (ixgb_hardware_init(adapter)) { 339 device_printf(dev, "Unable to initialize the hardware\n"); 340 error = EIO; 341 goto err_hw_init; 342 } 343 /* Setup OS specific network interface */ 344 if (ixgb_setup_interface(dev, adapter) != 0) 345 goto err_hw_init; 346 347 /* Initialize statistics */ 348 ixgb_clear_hw_cntrs(&adapter->hw); 349 ixgb_update_stats_counters(adapter); 350 351 INIT_DEBUGOUT("ixgb_attach: end"); 352 return (0); 353 354err_hw_init: 355 ixgb_dma_free(adapter, &adapter->rxdma); 356err_rx_desc: 357 ixgb_dma_free(adapter, &adapter->txdma); 358err_tx_desc: 359err_pci: 360 if (adapter->ifp != NULL) 361 if_free(adapter->ifp); 362 ixgb_free_pci_resources(adapter); 363 sysctl_ctx_free(&adapter->sysctl_ctx); 364 free(adapter->mta, M_DEVBUF); 365 return (error); 366 367} 368 369/********************************************************************* 370 * Device removal routine 371 * 372 * The detach entry point is called when the driver is being removed. 373 * This routine stops the adapter and deallocates all the resources 374 * that were allocated for driver operation. 375 * 376 * return 0 on success, positive on failure 377 *********************************************************************/ 378 379static int 380ixgb_detach(device_t dev) 381{ 382 struct adapter *adapter = device_get_softc(dev); 383 struct ifnet *ifp = adapter->ifp; 384 385 INIT_DEBUGOUT("ixgb_detach: begin"); 386 387#ifdef DEVICE_POLLING 388 if (ifp->if_capenable & IFCAP_POLLING) 389 ether_poll_deregister(ifp); 390#endif 391 392 IXGB_LOCK(adapter); 393 adapter->in_detach = 1; 394 395 ixgb_stop(adapter); 396 IXGB_UNLOCK(adapter); 397 398#if __FreeBSD_version < 500000 399 ether_ifdetach(ifp, ETHER_BPF_SUPPORTED); 400#else 401 ether_ifdetach(ifp); 402#endif 403 callout_drain(&adapter->timer); 404 ixgb_free_pci_resources(adapter); 405#if __FreeBSD_version >= 500000 406 if_free(ifp); 407#endif 408 409 /* Free Transmit Descriptor ring */ 410 if (adapter->tx_desc_base) { 411 ixgb_dma_free(adapter, &adapter->txdma); 412 adapter->tx_desc_base = NULL; 413 } 414 /* Free Receive Descriptor ring */ 415 if (adapter->rx_desc_base) { 416 ixgb_dma_free(adapter, &adapter->rxdma); 417 adapter->rx_desc_base = NULL; 418 } 419 /* Remove from the adapter list */ 420 if (ixgb_adapter_list == adapter) 421 ixgb_adapter_list = adapter->next; 422 if (adapter->next != NULL) 423 adapter->next->prev = adapter->prev; 424 if (adapter->prev != NULL) 425 adapter->prev->next = adapter->next; 426 free(adapter->mta, M_DEVBUF); 427 428 IXGB_LOCK_DESTROY(adapter); 429 return (0); 430} 431 432/********************************************************************* 433 * 434 * Shutdown entry point 435 * 436 **********************************************************************/ 437 438static int 439ixgb_shutdown(device_t dev) 440{ 441 struct adapter *adapter = device_get_softc(dev); 442 IXGB_LOCK(adapter); 443 ixgb_stop(adapter); 444 IXGB_UNLOCK(adapter); 445 return (0); 446} 447 448 449/********************************************************************* 450 * Transmit entry point 451 * 452 * ixgb_start is called by the stack to initiate a transmit. 453 * The driver will remain in this routine as long as there are 454 * packets to transmit and transmit resources are available. 455 * In case resources are not available stack is notified and 456 * the packet is requeued. 457 **********************************************************************/ 458 459static void 460ixgb_start_locked(struct ifnet * ifp) 461{ 462 struct mbuf *m_head; 463 struct adapter *adapter = ifp->if_softc; 464 465 IXGB_LOCK_ASSERT(adapter); 466 467 if (!adapter->link_active) 468 return; 469 470 while (ifp->if_snd.ifq_head != NULL) { 471 IF_DEQUEUE(&ifp->if_snd, m_head); 472 473 if (m_head == NULL) 474 break; 475 476 if (ixgb_encap(adapter, m_head)) { 477 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 478 IF_PREPEND(&ifp->if_snd, m_head); 479 break; 480 } 481 /* Send a copy of the frame to the BPF listener */ 482#if __FreeBSD_version < 500000 483 if (ifp->if_bpf) 484 bpf_mtap(ifp, m_head); 485#else 486 ETHER_BPF_MTAP(ifp, m_head); 487#endif 488 /* Set timeout in case hardware has problems transmitting */ 489 adapter->tx_timer = IXGB_TX_TIMEOUT; 490 491 } 492 return; 493} 494 495static void 496ixgb_start(struct ifnet *ifp) 497{ 498 struct adapter *adapter = ifp->if_softc; 499 500 IXGB_LOCK(adapter); 501 ixgb_start_locked(ifp); 502 IXGB_UNLOCK(adapter); 503 return; 504} 505 506/********************************************************************* 507 * Ioctl entry point 508 * 509 * ixgb_ioctl is called when the user wants to configure the 510 * interface. 511 * 512 * return 0 on success, positive on failure 513 **********************************************************************/ 514 515static int 516ixgb_ioctl(struct ifnet * ifp, IOCTL_CMD_TYPE command, caddr_t data) 517{ 518 int mask, error = 0; 519 struct ifreq *ifr = (struct ifreq *) data; 520 struct adapter *adapter = ifp->if_softc; 521 522 if (adapter->in_detach) 523 goto out; 524 525 switch (command) { 526 case SIOCSIFADDR: 527 case SIOCGIFADDR: 528 IOCTL_DEBUGOUT("ioctl rcv'd: SIOCxIFADDR (Get/Set Interface Addr)"); 529 ether_ioctl(ifp, command, data); 530 break; 531 case SIOCSIFMTU: 532 IOCTL_DEBUGOUT("ioctl rcv'd: SIOCSIFMTU (Set Interface MTU)"); 533 if (ifr->ifr_mtu > IXGB_MAX_JUMBO_FRAME_SIZE - ETHER_HDR_LEN) { 534 error = EINVAL; 535 } else { 536 IXGB_LOCK(adapter); 537 ifp->if_mtu = ifr->ifr_mtu; 538 adapter->hw.max_frame_size = 539 ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN; 540 541 ixgb_init_locked(adapter); 542 IXGB_UNLOCK(adapter); 543 } 544 break; 545 case SIOCSIFFLAGS: 546 IOCTL_DEBUGOUT("ioctl rcv'd: SIOCSIFFLAGS (Set Interface Flags)"); 547 IXGB_LOCK(adapter); 548 if (ifp->if_flags & IFF_UP) { 549 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 550 ixgb_init_locked(adapter); 551 } 552 ixgb_disable_promisc(adapter); 553 ixgb_set_promisc(adapter); 554 } else { 555 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 556 ixgb_stop(adapter); 557 } 558 } 559 IXGB_UNLOCK(adapter); 560 break; 561 case SIOCADDMULTI: 562 case SIOCDELMULTI: 563 IOCTL_DEBUGOUT("ioctl rcv'd: SIOC(ADD|DEL)MULTI"); 564 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 565 IXGB_LOCK(adapter); 566 ixgb_disable_intr(adapter); 567 ixgb_set_multi(adapter); 568 ixgb_enable_intr(adapter); 569 IXGB_UNLOCK(adapter); 570 } 571 break; 572 case SIOCSIFMEDIA: 573 case SIOCGIFMEDIA: 574 IOCTL_DEBUGOUT("ioctl rcv'd: SIOCxIFMEDIA (Get/Set Interface Media)"); 575 error = ifmedia_ioctl(ifp, ifr, &adapter->media, command); 576 break; 577 case SIOCSIFCAP: 578 IOCTL_DEBUGOUT("ioctl rcv'd: SIOCSIFCAP (Set Capabilities)"); 579 mask = ifr->ifr_reqcap ^ ifp->if_capenable; 580#ifdef DEVICE_POLLING 581 if (mask & IFCAP_POLLING) { 582 if (ifr->ifr_reqcap & IFCAP_POLLING) { 583 error = ether_poll_register(ixgb_poll, ifp); 584 if (error) 585 return(error); 586 IXGB_LOCK(adapter); 587 ixgb_disable_intr(adapter); 588 ifp->if_capenable |= IFCAP_POLLING; 589 IXGB_UNLOCK(adapter); 590 } else { 591 error = ether_poll_deregister(ifp); 592 /* Enable interrupt even in error case */ 593 IXGB_LOCK(adapter); 594 ixgb_enable_intr(adapter); 595 ifp->if_capenable &= ~IFCAP_POLLING; 596 IXGB_UNLOCK(adapter); 597 } 598 } 599#endif /* DEVICE_POLLING */ 600 if (mask & IFCAP_HWCSUM) { 601 if (IFCAP_HWCSUM & ifp->if_capenable) 602 ifp->if_capenable &= ~IFCAP_HWCSUM; 603 else 604 ifp->if_capenable |= IFCAP_HWCSUM; 605 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 606 ixgb_init(adapter); 607 } 608 break; 609 default: 610 IOCTL_DEBUGOUT1("ioctl received: UNKNOWN (0x%X)\n", (int)command); 611 error = EINVAL; 612 } 613 614out: 615 return (error); 616} 617 618/********************************************************************* 619 * Watchdog entry point 620 * 621 * This routine is called whenever hardware quits transmitting. 622 * 623 **********************************************************************/ 624 625static void 626ixgb_watchdog(struct adapter *adapter) 627{ 628 struct ifnet *ifp; 629 630 ifp = adapter->ifp; 631 632 /* 633 * If we are in this routine because of pause frames, then don't 634 * reset the hardware. 635 */ 636 if (IXGB_READ_REG(&adapter->hw, STATUS) & IXGB_STATUS_TXOFF) { 637 adapter->tx_timer = IXGB_TX_TIMEOUT; 638 return; 639 } 640 if_printf(ifp, "watchdog timeout -- resetting\n"); 641 642 ixgb_stop(adapter); 643 ixgb_init_locked(adapter); 644 645 646 ifp->if_oerrors++; 647 648 return; 649} 650 651/********************************************************************* 652 * Init entry point 653 * 654 * This routine is used in two ways. It is used by the stack as 655 * init entry point in network interface structure. It is also used 656 * by the driver as a hw/sw initialization routine to get to a 657 * consistent state. 658 * 659 * return 0 on success, positive on failure 660 **********************************************************************/ 661 662static void 663ixgb_init_locked(struct adapter *adapter) 664{ 665 struct ifnet *ifp; 666 667 INIT_DEBUGOUT("ixgb_init: begin"); 668 669 IXGB_LOCK_ASSERT(adapter); 670 671 ixgb_stop(adapter); 672 ifp = adapter->ifp; 673 674 /* Get the latest mac address, User can use a LAA */ 675 bcopy(IF_LLADDR(ifp), adapter->hw.curr_mac_addr, 676 IXGB_ETH_LENGTH_OF_ADDRESS); 677 678 /* Initialize the hardware */ 679 if (ixgb_hardware_init(adapter)) { 680 if_printf(ifp, "Unable to initialize the hardware\n"); 681 return; 682 } 683 ixgb_enable_vlans(adapter); 684 685 /* Prepare transmit descriptors and buffers */ 686 if (ixgb_setup_transmit_structures(adapter)) { 687 if_printf(ifp, "Could not setup transmit structures\n"); 688 ixgb_stop(adapter); 689 return; 690 } 691 ixgb_initialize_transmit_unit(adapter); 692 693 /* Setup Multicast table */ 694 ixgb_set_multi(adapter); 695 696 /* Prepare receive descriptors and buffers */ 697 if (ixgb_setup_receive_structures(adapter)) { 698 if_printf(ifp, "Could not setup receive structures\n"); 699 ixgb_stop(adapter); 700 return; 701 } 702 ixgb_initialize_receive_unit(adapter); 703 704 /* Don't lose promiscuous settings */ 705 ixgb_set_promisc(adapter); 706 707 ifp = adapter->ifp; 708 ifp->if_drv_flags |= IFF_DRV_RUNNING; 709 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 710 711 712 if (ifp->if_capenable & IFCAP_TXCSUM) 713 ifp->if_hwassist = IXGB_CHECKSUM_FEATURES; 714 else 715 ifp->if_hwassist = 0; 716 717 718 /* Enable jumbo frames */ 719 if (ifp->if_mtu > ETHERMTU) { 720 uint32_t temp_reg; 721 IXGB_WRITE_REG(&adapter->hw, MFS, 722 adapter->hw.max_frame_size << IXGB_MFS_SHIFT); 723 temp_reg = IXGB_READ_REG(&adapter->hw, CTRL0); 724 temp_reg |= IXGB_CTRL0_JFE; 725 IXGB_WRITE_REG(&adapter->hw, CTRL0, temp_reg); 726 } 727 callout_reset(&adapter->timer, hz, ixgb_local_timer, adapter); 728 ixgb_clear_hw_cntrs(&adapter->hw); 729#ifdef DEVICE_POLLING 730 /* 731 * Only disable interrupts if we are polling, make sure they are on 732 * otherwise. 733 */ 734 if (ifp->if_capenable & IFCAP_POLLING) 735 ixgb_disable_intr(adapter); 736 else 737#endif 738 ixgb_enable_intr(adapter); 739 740 return; 741} 742 743static void 744ixgb_init(void *arg) 745{ 746 struct adapter *adapter = arg; 747 748 IXGB_LOCK(adapter); 749 ixgb_init_locked(adapter); 750 IXGB_UNLOCK(adapter); 751 return; 752} 753 754#ifdef DEVICE_POLLING 755static int 756ixgb_poll_locked(struct ifnet * ifp, enum poll_cmd cmd, int count) 757{ 758 struct adapter *adapter = ifp->if_softc; 759 u_int32_t reg_icr; 760 int rx_npkts; 761 762 IXGB_LOCK_ASSERT(adapter); 763 764 if (cmd == POLL_AND_CHECK_STATUS) { 765 reg_icr = IXGB_READ_REG(&adapter->hw, ICR); 766 if (reg_icr & (IXGB_INT_RXSEQ | IXGB_INT_LSC)) { 767 ixgb_check_for_link(&adapter->hw); 768 ixgb_print_link_status(adapter); 769 } 770 } 771 rx_npkts = ixgb_process_receive_interrupts(adapter, count); 772 ixgb_clean_transmit_interrupts(adapter); 773 774 if (ifp->if_snd.ifq_head != NULL) 775 ixgb_start_locked(ifp); 776 return (rx_npkts); 777} 778 779static int 780ixgb_poll(struct ifnet * ifp, enum poll_cmd cmd, int count) 781{ 782 struct adapter *adapter = ifp->if_softc; 783 int rx_npkts = 0; 784 785 IXGB_LOCK(adapter); 786 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 787 rx_npkts = ixgb_poll_locked(ifp, cmd, count); 788 IXGB_UNLOCK(adapter); 789 return (rx_npkts); 790} 791#endif /* DEVICE_POLLING */ 792 793/********************************************************************* 794 * 795 * Interrupt Service routine 796 * 797 **********************************************************************/ 798 799static void 800ixgb_intr(void *arg) 801{ 802 u_int32_t loop_cnt = IXGB_MAX_INTR; 803 u_int32_t reg_icr; 804 struct ifnet *ifp; 805 struct adapter *adapter = arg; 806 boolean_t rxdmt0 = FALSE; 807 808 IXGB_LOCK(adapter); 809 810 ifp = adapter->ifp; 811 812#ifdef DEVICE_POLLING 813 if (ifp->if_capenable & IFCAP_POLLING) { 814 IXGB_UNLOCK(adapter); 815 return; 816 } 817#endif 818 819 reg_icr = IXGB_READ_REG(&adapter->hw, ICR); 820 if (reg_icr == 0) { 821 IXGB_UNLOCK(adapter); 822 return; 823 } 824 825 if (reg_icr & IXGB_INT_RXDMT0) 826 rxdmt0 = TRUE; 827 828#ifdef _SV_ 829 if (reg_icr & IXGB_INT_RXDMT0) 830 adapter->sv_stats.icr_rxdmt0++; 831 if (reg_icr & IXGB_INT_RXO) 832 adapter->sv_stats.icr_rxo++; 833 if (reg_icr & IXGB_INT_RXT0) 834 adapter->sv_stats.icr_rxt0++; 835 if (reg_icr & IXGB_INT_TXDW) 836 adapter->sv_stats.icr_TXDW++; 837#endif /* _SV_ */ 838 839 /* Link status change */ 840 if (reg_icr & (IXGB_INT_RXSEQ | IXGB_INT_LSC)) { 841 ixgb_check_for_link(&adapter->hw); 842 ixgb_print_link_status(adapter); 843 } 844 while (loop_cnt > 0) { 845 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 846 ixgb_process_receive_interrupts(adapter, -1); 847 ixgb_clean_transmit_interrupts(adapter); 848 } 849 loop_cnt--; 850 } 851 852 if (rxdmt0 && adapter->raidc) { 853 IXGB_WRITE_REG(&adapter->hw, IMC, IXGB_INT_RXDMT0); 854 IXGB_WRITE_REG(&adapter->hw, IMS, IXGB_INT_RXDMT0); 855 } 856 if (ifp->if_drv_flags & IFF_DRV_RUNNING && ifp->if_snd.ifq_head != NULL) 857 ixgb_start_locked(ifp); 858 859 IXGB_UNLOCK(adapter); 860 return; 861} 862 863 864/********************************************************************* 865 * 866 * Media Ioctl callback 867 * 868 * This routine is called whenever the user queries the status of 869 * the interface using ifconfig. 870 * 871 **********************************************************************/ 872static void 873ixgb_media_status(struct ifnet * ifp, struct ifmediareq * ifmr) 874{ 875 struct adapter *adapter = ifp->if_softc; 876 877 INIT_DEBUGOUT("ixgb_media_status: begin"); 878 879 ixgb_check_for_link(&adapter->hw); 880 ixgb_print_link_status(adapter); 881 882 ifmr->ifm_status = IFM_AVALID; 883 ifmr->ifm_active = IFM_ETHER; 884 885 if (!adapter->hw.link_up) 886 return; 887 888 ifmr->ifm_status |= IFM_ACTIVE; 889 ifmr->ifm_active |= IFM_1000_SX | IFM_FDX; 890 891 return; 892} 893 894/********************************************************************* 895 * 896 * Media Ioctl callback 897 * 898 * This routine is called when the user changes speed/duplex using 899 * media/mediopt option with ifconfig. 900 * 901 **********************************************************************/ 902static int 903ixgb_media_change(struct ifnet * ifp) 904{ 905 struct adapter *adapter = ifp->if_softc; 906 struct ifmedia *ifm = &adapter->media; 907 908 INIT_DEBUGOUT("ixgb_media_change: begin"); 909 910 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 911 return (EINVAL); 912 913 return (0); 914} 915 916/********************************************************************* 917 * 918 * This routine maps the mbufs to tx descriptors. 919 * 920 * return 0 on success, positive on failure 921 **********************************************************************/ 922 923static int 924ixgb_encap(struct adapter * adapter, struct mbuf * m_head) 925{ 926 u_int8_t txd_popts; 927 int i, j, error, nsegs; 928 929#if __FreeBSD_version < 500000 930 struct ifvlan *ifv = NULL; 931#endif 932 bus_dma_segment_t segs[IXGB_MAX_SCATTER]; 933 bus_dmamap_t map; 934 struct ixgb_buffer *tx_buffer = NULL; 935 struct ixgb_tx_desc *current_tx_desc = NULL; 936 struct ifnet *ifp = adapter->ifp; 937 938 /* 939 * Force a cleanup if number of TX descriptors available hits the 940 * threshold 941 */ 942 if (adapter->num_tx_desc_avail <= IXGB_TX_CLEANUP_THRESHOLD) { 943 ixgb_clean_transmit_interrupts(adapter); 944 } 945 if (adapter->num_tx_desc_avail <= IXGB_TX_CLEANUP_THRESHOLD) { 946 adapter->no_tx_desc_avail1++; 947 return (ENOBUFS); 948 } 949 /* 950 * Map the packet for DMA. 951 */ 952 if (bus_dmamap_create(adapter->txtag, BUS_DMA_NOWAIT, &map)) { 953 adapter->no_tx_map_avail++; 954 return (ENOMEM); 955 } 956 error = bus_dmamap_load_mbuf_sg(adapter->txtag, map, m_head, segs, 957 &nsegs, BUS_DMA_NOWAIT); 958 if (error != 0) { 959 adapter->no_tx_dma_setup++; 960 if_printf(ifp, "ixgb_encap: bus_dmamap_load_mbuf failed; " 961 "error %u\n", error); 962 bus_dmamap_destroy(adapter->txtag, map); 963 return (error); 964 } 965 KASSERT(nsegs != 0, ("ixgb_encap: empty packet")); 966 967 if (nsegs > adapter->num_tx_desc_avail) { 968 adapter->no_tx_desc_avail2++; 969 bus_dmamap_destroy(adapter->txtag, map); 970 return (ENOBUFS); 971 } 972 if (ifp->if_hwassist > 0) { 973 ixgb_transmit_checksum_setup(adapter, m_head, 974 &txd_popts); 975 } else 976 txd_popts = 0; 977 978 /* Find out if we are in vlan mode */ 979#if __FreeBSD_version < 500000 980 if ((m_head->m_flags & (M_PROTO1 | M_PKTHDR)) == (M_PROTO1 | M_PKTHDR) && 981 m_head->m_pkthdr.rcvif != NULL && 982 m_head->m_pkthdr.rcvif->if_type == IFT_L2VLAN) 983 ifv = m_head->m_pkthdr.rcvif->if_softc; 984#elseif __FreeBSD_version < 700000 985 mtag = VLAN_OUTPUT_TAG(ifp, m_head); 986#endif 987 i = adapter->next_avail_tx_desc; 988 for (j = 0; j < nsegs; j++) { 989 tx_buffer = &adapter->tx_buffer_area[i]; 990 current_tx_desc = &adapter->tx_desc_base[i]; 991 992 current_tx_desc->buff_addr = htole64(segs[j].ds_addr); 993 current_tx_desc->cmd_type_len = (adapter->txd_cmd | segs[j].ds_len); 994 current_tx_desc->popts = txd_popts; 995 if (++i == adapter->num_tx_desc) 996 i = 0; 997 998 tx_buffer->m_head = NULL; 999 } 1000 1001 adapter->num_tx_desc_avail -= nsegs; 1002 adapter->next_avail_tx_desc = i; 1003 1004#if __FreeBSD_version < 500000 1005 if (ifv != NULL) { 1006 /* Set the vlan id */ 1007 current_tx_desc->vlan = ifv->ifv_tag; 1008#elseif __FreeBSD_version < 700000 1009 if (mtag != NULL) { 1010 /* Set the vlan id */ 1011 current_tx_desc->vlan = VLAN_TAG_VALUE(mtag); 1012#else 1013 if (m_head->m_flags & M_VLANTAG) { 1014 current_tx_desc->vlan = m_head->m_pkthdr.ether_vtag; 1015#endif 1016 1017 /* Tell hardware to add tag */ 1018 current_tx_desc->cmd_type_len |= IXGB_TX_DESC_CMD_VLE; 1019 } 1020 tx_buffer->m_head = m_head; 1021 tx_buffer->map = map; 1022 bus_dmamap_sync(adapter->txtag, map, BUS_DMASYNC_PREWRITE); 1023 1024 /* 1025 * Last Descriptor of Packet needs End Of Packet (EOP) 1026 */ 1027 current_tx_desc->cmd_type_len |= (IXGB_TX_DESC_CMD_EOP); 1028 1029 /* 1030 * Advance the Transmit Descriptor Tail (Tdt), this tells the E1000 1031 * that this frame is available to transmit. 1032 */ 1033 IXGB_WRITE_REG(&adapter->hw, TDT, i); 1034 1035 return (0); 1036} 1037 1038static void 1039ixgb_set_promisc(struct adapter * adapter) 1040{ 1041 1042 u_int32_t reg_rctl; 1043 struct ifnet *ifp = adapter->ifp; 1044 1045 reg_rctl = IXGB_READ_REG(&adapter->hw, RCTL); 1046 1047 if (ifp->if_flags & IFF_PROMISC) { 1048 reg_rctl |= (IXGB_RCTL_UPE | IXGB_RCTL_MPE); 1049 IXGB_WRITE_REG(&adapter->hw, RCTL, reg_rctl); 1050 } else if (ifp->if_flags & IFF_ALLMULTI) { 1051 reg_rctl |= IXGB_RCTL_MPE; 1052 reg_rctl &= ~IXGB_RCTL_UPE; 1053 IXGB_WRITE_REG(&adapter->hw, RCTL, reg_rctl); 1054 } 1055 return; 1056} 1057 1058static void 1059ixgb_disable_promisc(struct adapter * adapter) 1060{ 1061 u_int32_t reg_rctl; 1062 1063 reg_rctl = IXGB_READ_REG(&adapter->hw, RCTL); 1064 1065 reg_rctl &= (~IXGB_RCTL_UPE); 1066 reg_rctl &= (~IXGB_RCTL_MPE); 1067 IXGB_WRITE_REG(&adapter->hw, RCTL, reg_rctl); 1068 1069 return; 1070} 1071 1072 1073/********************************************************************* 1074 * Multicast Update 1075 * 1076 * This routine is called whenever multicast address list is updated. 1077 * 1078 **********************************************************************/ 1079 1080static void 1081ixgb_set_multi(struct adapter * adapter) 1082{ 1083 u_int32_t reg_rctl = 0; 1084 u_int8_t *mta; 1085 struct ifmultiaddr *ifma; 1086 int mcnt = 0; 1087 struct ifnet *ifp = adapter->ifp; 1088 1089 IOCTL_DEBUGOUT("ixgb_set_multi: begin"); 1090 1091 mta = adapter->mta; 1092 bzero(mta, sizeof(u_int8_t) * IXGB_ETH_LENGTH_OF_ADDRESS * 1093 MAX_NUM_MULTICAST_ADDRESSES); 1094 1095 if_maddr_rlock(ifp); 1096#if __FreeBSD_version < 500000 1097 LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 1098#else 1099 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 1100#endif 1101 if (ifma->ifma_addr->sa_family != AF_LINK) 1102 continue; 1103 1104 bcopy(LLADDR((struct sockaddr_dl *) ifma->ifma_addr), 1105 &mta[mcnt * IXGB_ETH_LENGTH_OF_ADDRESS], IXGB_ETH_LENGTH_OF_ADDRESS); 1106 mcnt++; 1107 } 1108 if_maddr_runlock(ifp); 1109 1110 if (mcnt > MAX_NUM_MULTICAST_ADDRESSES) { 1111 reg_rctl = IXGB_READ_REG(&adapter->hw, RCTL); 1112 reg_rctl |= IXGB_RCTL_MPE; 1113 IXGB_WRITE_REG(&adapter->hw, RCTL, reg_rctl); 1114 } else 1115 ixgb_mc_addr_list_update(&adapter->hw, mta, mcnt, 0); 1116 1117 return; 1118} 1119 1120 1121/********************************************************************* 1122 * Timer routine 1123 * 1124 * This routine checks for link status and updates statistics. 1125 * 1126 **********************************************************************/ 1127 1128static void 1129ixgb_local_timer(void *arg) 1130{ 1131 struct ifnet *ifp; 1132 struct adapter *adapter = arg; 1133 ifp = adapter->ifp; 1134 1135 IXGB_LOCK_ASSERT(adapter); 1136 1137 ixgb_check_for_link(&adapter->hw); 1138 ixgb_print_link_status(adapter); 1139 ixgb_update_stats_counters(adapter); 1140 if (ixgb_display_debug_stats && ifp->if_drv_flags & IFF_DRV_RUNNING) { 1141 ixgb_print_hw_stats(adapter); 1142 } 1143 if (adapter->tx_timer != 0 && --adapter->tx_timer == 0) 1144 ixgb_watchdog(adapter); 1145 callout_reset(&adapter->timer, hz, ixgb_local_timer, adapter); 1146} 1147 1148static void 1149ixgb_print_link_status(struct adapter * adapter) 1150{ 1151 if (adapter->hw.link_up) { 1152 if (!adapter->link_active) { 1153 if_printf(adapter->ifp, "Link is up %d Mbps %s \n", 1154 10000, 1155 "Full Duplex"); 1156 adapter->link_active = 1; 1157 } 1158 } else { 1159 if (adapter->link_active) { 1160 if_printf(adapter->ifp, "Link is Down \n"); 1161 adapter->link_active = 0; 1162 } 1163 } 1164 1165 return; 1166} 1167 1168 1169 1170/********************************************************************* 1171 * 1172 * This routine disables all traffic on the adapter by issuing a 1173 * global reset on the MAC and deallocates TX/RX buffers. 1174 * 1175 **********************************************************************/ 1176 1177static void 1178ixgb_stop(void *arg) 1179{ 1180 struct ifnet *ifp; 1181 struct adapter *adapter = arg; 1182 ifp = adapter->ifp; 1183 1184 IXGB_LOCK_ASSERT(adapter); 1185 1186 INIT_DEBUGOUT("ixgb_stop: begin\n"); 1187 ixgb_disable_intr(adapter); 1188 adapter->hw.adapter_stopped = FALSE; 1189 ixgb_adapter_stop(&adapter->hw); 1190 callout_stop(&adapter->timer); 1191 ixgb_free_transmit_structures(adapter); 1192 ixgb_free_receive_structures(adapter); 1193 1194 /* Tell the stack that the interface is no longer active */ 1195 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 1196 adapter->tx_timer = 0; 1197 1198 return; 1199} 1200 1201 1202/********************************************************************* 1203 * 1204 * Determine hardware revision. 1205 * 1206 **********************************************************************/ 1207static void 1208ixgb_identify_hardware(struct adapter * adapter) 1209{ 1210 device_t dev = adapter->dev; 1211 1212 /* Make sure our PCI config space has the necessary stuff set */ 1213 pci_enable_busmaster(dev); 1214 adapter->hw.pci_cmd_word = pci_read_config(dev, PCIR_COMMAND, 2); 1215 1216 /* Save off the information about this board */ 1217 adapter->hw.vendor_id = pci_get_vendor(dev); 1218 adapter->hw.device_id = pci_get_device(dev); 1219 adapter->hw.revision_id = pci_read_config(dev, PCIR_REVID, 1); 1220 adapter->hw.subsystem_vendor_id = pci_read_config(dev, PCIR_SUBVEND_0, 2); 1221 adapter->hw.subsystem_id = pci_read_config(dev, PCIR_SUBDEV_0, 2); 1222 1223 /* Set MacType, etc. based on this PCI info */ 1224 switch (adapter->hw.device_id) { 1225 case IXGB_DEVICE_ID_82597EX: 1226 case IXGB_DEVICE_ID_82597EX_SR: 1227 adapter->hw.mac_type = ixgb_82597; 1228 break; 1229 default: 1230 INIT_DEBUGOUT1("Unknown device if 0x%x", adapter->hw.device_id); 1231 device_printf(dev, "unsupported device id 0x%x\n", 1232 adapter->hw.device_id); 1233 } 1234 1235 return; 1236} 1237 1238static int 1239ixgb_allocate_pci_resources(struct adapter * adapter) 1240{ 1241 int rid; 1242 device_t dev = adapter->dev; 1243 1244 rid = IXGB_MMBA; 1245 adapter->res_memory = bus_alloc_resource(dev, SYS_RES_MEMORY, 1246 &rid, 0, ~0, 1, 1247 RF_ACTIVE); 1248 if (!(adapter->res_memory)) { 1249 device_printf(dev, "Unable to allocate bus resource: memory\n"); 1250 return (ENXIO); 1251 } 1252 adapter->osdep.mem_bus_space_tag = 1253 rman_get_bustag(adapter->res_memory); 1254 adapter->osdep.mem_bus_space_handle = 1255 rman_get_bushandle(adapter->res_memory); 1256 adapter->hw.hw_addr = (uint8_t *) & adapter->osdep.mem_bus_space_handle; 1257 1258 rid = 0x0; 1259 adapter->res_interrupt = bus_alloc_resource(dev, SYS_RES_IRQ, 1260 &rid, 0, ~0, 1, 1261 RF_SHAREABLE | RF_ACTIVE); 1262 if (!(adapter->res_interrupt)) { 1263 device_printf(dev, 1264 "Unable to allocate bus resource: interrupt\n"); 1265 return (ENXIO); 1266 } 1267 if (bus_setup_intr(dev, adapter->res_interrupt, 1268 INTR_TYPE_NET | INTR_MPSAFE, 1269 NULL, (void (*) (void *))ixgb_intr, adapter, 1270 &adapter->int_handler_tag)) { 1271 device_printf(dev, "Error registering interrupt handler!\n"); 1272 return (ENXIO); 1273 } 1274 adapter->hw.back = &adapter->osdep; 1275 1276 return (0); 1277} 1278 1279static void 1280ixgb_free_pci_resources(struct adapter * adapter) 1281{ 1282 device_t dev = adapter->dev; 1283 1284 if (adapter->res_interrupt != NULL) { 1285 bus_teardown_intr(dev, adapter->res_interrupt, 1286 adapter->int_handler_tag); 1287 bus_release_resource(dev, SYS_RES_IRQ, 0, 1288 adapter->res_interrupt); 1289 } 1290 if (adapter->res_memory != NULL) { 1291 bus_release_resource(dev, SYS_RES_MEMORY, IXGB_MMBA, 1292 adapter->res_memory); 1293 } 1294 if (adapter->res_ioport != NULL) { 1295 bus_release_resource(dev, SYS_RES_IOPORT, adapter->io_rid, 1296 adapter->res_ioport); 1297 } 1298 return; 1299} 1300 1301/********************************************************************* 1302 * 1303 * Initialize the hardware to a configuration as specified by the 1304 * adapter structure. The controller is reset, the EEPROM is 1305 * verified, the MAC address is set, then the shared initialization 1306 * routines are called. 1307 * 1308 **********************************************************************/ 1309static int 1310ixgb_hardware_init(struct adapter * adapter) 1311{ 1312 /* Issue a global reset */ 1313 adapter->hw.adapter_stopped = FALSE; 1314 ixgb_adapter_stop(&adapter->hw); 1315 1316 /* Make sure we have a good EEPROM before we read from it */ 1317 if (!ixgb_validate_eeprom_checksum(&adapter->hw)) { 1318 device_printf(adapter->dev, 1319 "The EEPROM Checksum Is Not Valid\n"); 1320 return (EIO); 1321 } 1322 if (!ixgb_init_hw(&adapter->hw)) { 1323 device_printf(adapter->dev, "Hardware Initialization Failed"); 1324 return (EIO); 1325 } 1326 1327 return (0); 1328} 1329 1330/********************************************************************* 1331 * 1332 * Setup networking device structure and register an interface. 1333 * 1334 **********************************************************************/ 1335static int 1336ixgb_setup_interface(device_t dev, struct adapter * adapter) 1337{ 1338 struct ifnet *ifp; 1339 INIT_DEBUGOUT("ixgb_setup_interface: begin"); 1340 1341 ifp = adapter->ifp = if_alloc(IFT_ETHER); 1342 if (ifp == NULL) { 1343 device_printf(dev, "can not allocate ifnet structure\n"); 1344 return (-1); 1345 } 1346#if __FreeBSD_version >= 502000 1347 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 1348#else 1349 ifp->if_unit = device_get_unit(dev); 1350 ifp->if_name = "ixgb"; 1351#endif 1352 ifp->if_baudrate = 1000000000; 1353 ifp->if_init = ixgb_init; 1354 ifp->if_softc = adapter; 1355 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 1356 ifp->if_ioctl = ixgb_ioctl; 1357 ifp->if_start = ixgb_start; 1358 ifp->if_snd.ifq_maxlen = adapter->num_tx_desc - 1; 1359 1360#if __FreeBSD_version < 500000 1361 ether_ifattach(ifp, ETHER_BPF_SUPPORTED); 1362#else 1363 ether_ifattach(ifp, adapter->hw.curr_mac_addr); 1364#endif 1365 1366 ifp->if_capabilities = IFCAP_HWCSUM; 1367 1368 /* 1369 * Tell the upper layer(s) we support long frames. 1370 */ 1371 ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); 1372 1373#if __FreeBSD_version >= 500000 1374 ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU; 1375#endif 1376 1377 ifp->if_capenable = ifp->if_capabilities; 1378 1379#ifdef DEVICE_POLLING 1380 ifp->if_capabilities |= IFCAP_POLLING; 1381#endif 1382 1383 /* 1384 * Specify the media types supported by this adapter and register 1385 * callbacks to update media and link information 1386 */ 1387 ifmedia_init(&adapter->media, IFM_IMASK, ixgb_media_change, 1388 ixgb_media_status); 1389 ifmedia_add(&adapter->media, IFM_ETHER | IFM_1000_SX | IFM_FDX, 1390 0, NULL); 1391 ifmedia_add(&adapter->media, IFM_ETHER | IFM_1000_SX, 1392 0, NULL); 1393 ifmedia_add(&adapter->media, IFM_ETHER | IFM_AUTO, 0, NULL); 1394 ifmedia_set(&adapter->media, IFM_ETHER | IFM_AUTO); 1395 1396 return (0); 1397} 1398 1399/******************************************************************** 1400 * Manage DMA'able memory. 1401 *******************************************************************/ 1402static void 1403ixgb_dmamap_cb(void *arg, bus_dma_segment_t * segs, int nseg, int error) 1404{ 1405 if (error) 1406 return; 1407 *(bus_addr_t *) arg = segs->ds_addr; 1408 return; 1409} 1410 1411static int 1412ixgb_dma_malloc(struct adapter * adapter, bus_size_t size, 1413 struct ixgb_dma_alloc * dma, int mapflags) 1414{ 1415 device_t dev; 1416 int r; 1417 1418 dev = adapter->dev; 1419 r = bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */ 1420 PAGE_SIZE, 0, /* alignment, bounds */ 1421 BUS_SPACE_MAXADDR, /* lowaddr */ 1422 BUS_SPACE_MAXADDR, /* highaddr */ 1423 NULL, NULL, /* filter, filterarg */ 1424 size, /* maxsize */ 1425 1, /* nsegments */ 1426 size, /* maxsegsize */ 1427 BUS_DMA_ALLOCNOW, /* flags */ 1428#if __FreeBSD_version >= 502000 1429 NULL, /* lockfunc */ 1430 NULL, /* lockfuncarg */ 1431#endif 1432 &dma->dma_tag); 1433 if (r != 0) { 1434 device_printf(dev, "ixgb_dma_malloc: bus_dma_tag_create failed; " 1435 "error %u\n", r); 1436 goto fail_0; 1437 } 1438 r = bus_dmamem_alloc(dma->dma_tag, (void **)&dma->dma_vaddr, 1439 BUS_DMA_NOWAIT, &dma->dma_map); 1440 if (r != 0) { 1441 device_printf(dev, "ixgb_dma_malloc: bus_dmamem_alloc failed; " 1442 "error %u\n", r); 1443 goto fail_1; 1444 } 1445 r = bus_dmamap_load(dma->dma_tag, dma->dma_map, dma->dma_vaddr, 1446 size, 1447 ixgb_dmamap_cb, 1448 &dma->dma_paddr, 1449 mapflags | BUS_DMA_NOWAIT); 1450 if (r != 0) { 1451 device_printf(dev, "ixgb_dma_malloc: bus_dmamap_load failed; " 1452 "error %u\n", r); 1453 goto fail_2; 1454 } 1455 dma->dma_size = size; 1456 return (0); 1457fail_2: 1458 bus_dmamem_free(dma->dma_tag, dma->dma_vaddr, dma->dma_map); 1459fail_1: 1460 bus_dma_tag_destroy(dma->dma_tag); 1461fail_0: 1462 dma->dma_map = NULL; 1463 dma->dma_tag = NULL; 1464 return (r); 1465} 1466 1467 1468 1469static void 1470ixgb_dma_free(struct adapter * adapter, struct ixgb_dma_alloc * dma) 1471{ 1472 bus_dmamap_unload(dma->dma_tag, dma->dma_map); 1473 bus_dmamem_free(dma->dma_tag, dma->dma_vaddr, dma->dma_map); 1474 bus_dma_tag_destroy(dma->dma_tag); 1475} 1476 1477/********************************************************************* 1478 * 1479 * Allocate memory for tx_buffer structures. The tx_buffer stores all 1480 * the information needed to transmit a packet on the wire. 1481 * 1482 **********************************************************************/ 1483static int 1484ixgb_allocate_transmit_structures(struct adapter * adapter) 1485{ 1486 if (!(adapter->tx_buffer_area = 1487 (struct ixgb_buffer *) malloc(sizeof(struct ixgb_buffer) * 1488 adapter->num_tx_desc, M_DEVBUF, 1489 M_NOWAIT | M_ZERO))) { 1490 device_printf(adapter->dev, 1491 "Unable to allocate tx_buffer memory\n"); 1492 return ENOMEM; 1493 } 1494 bzero(adapter->tx_buffer_area, 1495 sizeof(struct ixgb_buffer) * adapter->num_tx_desc); 1496 1497 return 0; 1498} 1499 1500/********************************************************************* 1501 * 1502 * Allocate and initialize transmit structures. 1503 * 1504 **********************************************************************/ 1505static int 1506ixgb_setup_transmit_structures(struct adapter * adapter) 1507{ 1508 /* 1509 * Setup DMA descriptor areas. 1510 */ 1511 if (bus_dma_tag_create(bus_get_dma_tag(adapter->dev), /* parent */ 1512 PAGE_SIZE, 0, /* alignment, bounds */ 1513 BUS_SPACE_MAXADDR, /* lowaddr */ 1514 BUS_SPACE_MAXADDR, /* highaddr */ 1515 NULL, NULL, /* filter, filterarg */ 1516 MCLBYTES * IXGB_MAX_SCATTER, /* maxsize */ 1517 IXGB_MAX_SCATTER, /* nsegments */ 1518 MCLBYTES, /* maxsegsize */ 1519 BUS_DMA_ALLOCNOW, /* flags */ 1520#if __FreeBSD_version >= 502000 1521 NULL, /* lockfunc */ 1522 NULL, /* lockfuncarg */ 1523#endif 1524 &adapter->txtag)) { 1525 device_printf(adapter->dev, "Unable to allocate TX DMA tag\n"); 1526 return (ENOMEM); 1527 } 1528 if (ixgb_allocate_transmit_structures(adapter)) 1529 return ENOMEM; 1530 1531 bzero((void *)adapter->tx_desc_base, 1532 (sizeof(struct ixgb_tx_desc)) * adapter->num_tx_desc); 1533 1534 adapter->next_avail_tx_desc = 0; 1535 adapter->oldest_used_tx_desc = 0; 1536 1537 /* Set number of descriptors available */ 1538 adapter->num_tx_desc_avail = adapter->num_tx_desc; 1539 1540 /* Set checksum context */ 1541 adapter->active_checksum_context = OFFLOAD_NONE; 1542 1543 return 0; 1544} 1545 1546/********************************************************************* 1547 * 1548 * Enable transmit unit. 1549 * 1550 **********************************************************************/ 1551static void 1552ixgb_initialize_transmit_unit(struct adapter * adapter) 1553{ 1554 u_int32_t reg_tctl; 1555 u_int64_t tdba = adapter->txdma.dma_paddr; 1556 1557 /* Setup the Base and Length of the Tx Descriptor Ring */ 1558 IXGB_WRITE_REG(&adapter->hw, TDBAL, 1559 (tdba & 0x00000000ffffffffULL)); 1560 IXGB_WRITE_REG(&adapter->hw, TDBAH, (tdba >> 32)); 1561 IXGB_WRITE_REG(&adapter->hw, TDLEN, 1562 adapter->num_tx_desc * 1563 sizeof(struct ixgb_tx_desc)); 1564 1565 /* Setup the HW Tx Head and Tail descriptor pointers */ 1566 IXGB_WRITE_REG(&adapter->hw, TDH, 0); 1567 IXGB_WRITE_REG(&adapter->hw, TDT, 0); 1568 1569 1570 HW_DEBUGOUT2("Base = %x, Length = %x\n", 1571 IXGB_READ_REG(&adapter->hw, TDBAL), 1572 IXGB_READ_REG(&adapter->hw, TDLEN)); 1573 1574 IXGB_WRITE_REG(&adapter->hw, TIDV, adapter->tx_int_delay); 1575 1576 1577 /* Program the Transmit Control Register */ 1578 reg_tctl = IXGB_READ_REG(&adapter->hw, TCTL); 1579 reg_tctl = IXGB_TCTL_TCE | IXGB_TCTL_TXEN | IXGB_TCTL_TPDE; 1580 IXGB_WRITE_REG(&adapter->hw, TCTL, reg_tctl); 1581 1582 /* Setup Transmit Descriptor Settings for this adapter */ 1583 adapter->txd_cmd = IXGB_TX_DESC_TYPE | IXGB_TX_DESC_CMD_RS; 1584 1585 if (adapter->tx_int_delay > 0) 1586 adapter->txd_cmd |= IXGB_TX_DESC_CMD_IDE; 1587 return; 1588} 1589 1590/********************************************************************* 1591 * 1592 * Free all transmit related data structures. 1593 * 1594 **********************************************************************/ 1595static void 1596ixgb_free_transmit_structures(struct adapter * adapter) 1597{ 1598 struct ixgb_buffer *tx_buffer; 1599 int i; 1600 1601 INIT_DEBUGOUT("free_transmit_structures: begin"); 1602 1603 if (adapter->tx_buffer_area != NULL) { 1604 tx_buffer = adapter->tx_buffer_area; 1605 for (i = 0; i < adapter->num_tx_desc; i++, tx_buffer++) { 1606 if (tx_buffer->m_head != NULL) { 1607 bus_dmamap_unload(adapter->txtag, tx_buffer->map); 1608 bus_dmamap_destroy(adapter->txtag, tx_buffer->map); 1609 m_freem(tx_buffer->m_head); 1610 } 1611 tx_buffer->m_head = NULL; 1612 } 1613 } 1614 if (adapter->tx_buffer_area != NULL) { 1615 free(adapter->tx_buffer_area, M_DEVBUF); 1616 adapter->tx_buffer_area = NULL; 1617 } 1618 if (adapter->txtag != NULL) { 1619 bus_dma_tag_destroy(adapter->txtag); 1620 adapter->txtag = NULL; 1621 } 1622 return; 1623} 1624 1625/********************************************************************* 1626 * 1627 * The offload context needs to be set when we transfer the first 1628 * packet of a particular protocol (TCP/UDP). We change the 1629 * context only if the protocol type changes. 1630 * 1631 **********************************************************************/ 1632static void 1633ixgb_transmit_checksum_setup(struct adapter * adapter, 1634 struct mbuf * mp, 1635 u_int8_t * txd_popts) 1636{ 1637 struct ixgb_context_desc *TXD; 1638 struct ixgb_buffer *tx_buffer; 1639 int curr_txd; 1640 1641 if (mp->m_pkthdr.csum_flags) { 1642 1643 if (mp->m_pkthdr.csum_flags & CSUM_TCP) { 1644 *txd_popts = IXGB_TX_DESC_POPTS_TXSM; 1645 if (adapter->active_checksum_context == OFFLOAD_TCP_IP) 1646 return; 1647 else 1648 adapter->active_checksum_context = OFFLOAD_TCP_IP; 1649 } else if (mp->m_pkthdr.csum_flags & CSUM_UDP) { 1650 *txd_popts = IXGB_TX_DESC_POPTS_TXSM; 1651 if (adapter->active_checksum_context == OFFLOAD_UDP_IP) 1652 return; 1653 else 1654 adapter->active_checksum_context = OFFLOAD_UDP_IP; 1655 } else { 1656 *txd_popts = 0; 1657 return; 1658 } 1659 } else { 1660 *txd_popts = 0; 1661 return; 1662 } 1663 1664 /* 1665 * If we reach this point, the checksum offload context needs to be 1666 * reset. 1667 */ 1668 curr_txd = adapter->next_avail_tx_desc; 1669 tx_buffer = &adapter->tx_buffer_area[curr_txd]; 1670 TXD = (struct ixgb_context_desc *) & adapter->tx_desc_base[curr_txd]; 1671 1672 1673 TXD->tucss = ENET_HEADER_SIZE + sizeof(struct ip); 1674 TXD->tucse = 0; 1675 1676 TXD->mss = 0; 1677 1678 if (adapter->active_checksum_context == OFFLOAD_TCP_IP) { 1679 TXD->tucso = 1680 ENET_HEADER_SIZE + sizeof(struct ip) + 1681 offsetof(struct tcphdr, th_sum); 1682 } else if (adapter->active_checksum_context == OFFLOAD_UDP_IP) { 1683 TXD->tucso = 1684 ENET_HEADER_SIZE + sizeof(struct ip) + 1685 offsetof(struct udphdr, uh_sum); 1686 } 1687 TXD->cmd_type_len = IXGB_CONTEXT_DESC_CMD_TCP | IXGB_TX_DESC_CMD_RS | IXGB_CONTEXT_DESC_CMD_IDE; 1688 1689 tx_buffer->m_head = NULL; 1690 1691 if (++curr_txd == adapter->num_tx_desc) 1692 curr_txd = 0; 1693 1694 adapter->num_tx_desc_avail--; 1695 adapter->next_avail_tx_desc = curr_txd; 1696 return; 1697} 1698 1699/********************************************************************** 1700 * 1701 * Examine each tx_buffer in the used queue. If the hardware is done 1702 * processing the packet then free associated resources. The 1703 * tx_buffer is put back on the free queue. 1704 * 1705 **********************************************************************/ 1706static void 1707ixgb_clean_transmit_interrupts(struct adapter * adapter) 1708{ 1709 int i, num_avail; 1710 struct ixgb_buffer *tx_buffer; 1711 struct ixgb_tx_desc *tx_desc; 1712 1713 IXGB_LOCK_ASSERT(adapter); 1714 1715 if (adapter->num_tx_desc_avail == adapter->num_tx_desc) 1716 return; 1717 1718#ifdef _SV_ 1719 adapter->clean_tx_interrupts++; 1720#endif 1721 num_avail = adapter->num_tx_desc_avail; 1722 i = adapter->oldest_used_tx_desc; 1723 1724 tx_buffer = &adapter->tx_buffer_area[i]; 1725 tx_desc = &adapter->tx_desc_base[i]; 1726 1727 while (tx_desc->status & IXGB_TX_DESC_STATUS_DD) { 1728 1729 tx_desc->status = 0; 1730 num_avail++; 1731 1732 if (tx_buffer->m_head) { 1733 bus_dmamap_sync(adapter->txtag, tx_buffer->map, 1734 BUS_DMASYNC_POSTWRITE); 1735 bus_dmamap_unload(adapter->txtag, tx_buffer->map); 1736 bus_dmamap_destroy(adapter->txtag, tx_buffer->map); 1737 m_freem(tx_buffer->m_head); 1738 tx_buffer->m_head = NULL; 1739 } 1740 if (++i == adapter->num_tx_desc) 1741 i = 0; 1742 1743 tx_buffer = &adapter->tx_buffer_area[i]; 1744 tx_desc = &adapter->tx_desc_base[i]; 1745 } 1746 1747 adapter->oldest_used_tx_desc = i; 1748 1749 /* 1750 * If we have enough room, clear IFF_DRV_OACTIVE to tell the stack that 1751 * it is OK to send packets. If there are no pending descriptors, 1752 * clear the timeout. Otherwise, if some descriptors have been freed, 1753 * restart the timeout. 1754 */ 1755 if (num_avail > IXGB_TX_CLEANUP_THRESHOLD) { 1756 struct ifnet *ifp = adapter->ifp; 1757 1758 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1759 if (num_avail == adapter->num_tx_desc) 1760 adapter->tx_timer = 0; 1761 else if (num_avail == adapter->num_tx_desc_avail) 1762 adapter->tx_timer = IXGB_TX_TIMEOUT; 1763 } 1764 adapter->num_tx_desc_avail = num_avail; 1765 return; 1766} 1767 1768 1769/********************************************************************* 1770 * 1771 * Get a buffer from system mbuf buffer pool. 1772 * 1773 **********************************************************************/ 1774static int 1775ixgb_get_buf(int i, struct adapter * adapter, 1776 struct mbuf * nmp) 1777{ 1778 register struct mbuf *mp = nmp; 1779 struct ixgb_buffer *rx_buffer; 1780 struct ifnet *ifp; 1781 bus_addr_t paddr; 1782 int error; 1783 1784 ifp = adapter->ifp; 1785 1786 if (mp == NULL) { 1787 1788 mp = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1789 1790 if (mp == NULL) { 1791 adapter->mbuf_alloc_failed++; 1792 return (ENOBUFS); 1793 } 1794 mp->m_len = mp->m_pkthdr.len = MCLBYTES; 1795 } else { 1796 mp->m_len = mp->m_pkthdr.len = MCLBYTES; 1797 mp->m_data = mp->m_ext.ext_buf; 1798 mp->m_next = NULL; 1799 } 1800 1801 if (ifp->if_mtu <= ETHERMTU) { 1802 m_adj(mp, ETHER_ALIGN); 1803 } 1804 rx_buffer = &adapter->rx_buffer_area[i]; 1805 1806 /* 1807 * Using memory from the mbuf cluster pool, invoke the bus_dma 1808 * machinery to arrange the memory mapping. 1809 */ 1810 error = bus_dmamap_load(adapter->rxtag, rx_buffer->map, 1811 mtod(mp, void *), mp->m_len, 1812 ixgb_dmamap_cb, &paddr, 0); 1813 if (error) { 1814 m_free(mp); 1815 return (error); 1816 } 1817 rx_buffer->m_head = mp; 1818 adapter->rx_desc_base[i].buff_addr = htole64(paddr); 1819 bus_dmamap_sync(adapter->rxtag, rx_buffer->map, BUS_DMASYNC_PREREAD); 1820 1821 return (0); 1822} 1823 1824/********************************************************************* 1825 * 1826 * Allocate memory for rx_buffer structures. Since we use one 1827 * rx_buffer per received packet, the maximum number of rx_buffer's 1828 * that we'll need is equal to the number of receive descriptors 1829 * that we've allocated. 1830 * 1831 **********************************************************************/ 1832static int 1833ixgb_allocate_receive_structures(struct adapter * adapter) 1834{ 1835 int i, error; 1836 struct ixgb_buffer *rx_buffer; 1837 1838 if (!(adapter->rx_buffer_area = 1839 (struct ixgb_buffer *) malloc(sizeof(struct ixgb_buffer) * 1840 adapter->num_rx_desc, M_DEVBUF, 1841 M_NOWAIT | M_ZERO))) { 1842 device_printf(adapter->dev, 1843 "Unable to allocate rx_buffer memory\n"); 1844 return (ENOMEM); 1845 } 1846 bzero(adapter->rx_buffer_area, 1847 sizeof(struct ixgb_buffer) * adapter->num_rx_desc); 1848 1849 error = bus_dma_tag_create(bus_get_dma_tag(adapter->dev),/* parent */ 1850 PAGE_SIZE, 0, /* alignment, bounds */ 1851 BUS_SPACE_MAXADDR, /* lowaddr */ 1852 BUS_SPACE_MAXADDR, /* highaddr */ 1853 NULL, NULL, /* filter, filterarg */ 1854 MCLBYTES, /* maxsize */ 1855 1, /* nsegments */ 1856 MCLBYTES, /* maxsegsize */ 1857 BUS_DMA_ALLOCNOW, /* flags */ 1858#if __FreeBSD_version >= 502000 1859 NULL, /* lockfunc */ 1860 NULL, /* lockfuncarg */ 1861#endif 1862 &adapter->rxtag); 1863 if (error != 0) { 1864 device_printf(adapter->dev, "ixgb_allocate_receive_structures: " 1865 "bus_dma_tag_create failed; error %u\n", 1866 error); 1867 goto fail_0; 1868 } 1869 rx_buffer = adapter->rx_buffer_area; 1870 for (i = 0; i < adapter->num_rx_desc; i++, rx_buffer++) { 1871 error = bus_dmamap_create(adapter->rxtag, BUS_DMA_NOWAIT, 1872 &rx_buffer->map); 1873 if (error != 0) { 1874 device_printf(adapter->dev, 1875 "ixgb_allocate_receive_structures: " 1876 "bus_dmamap_create failed; error %u\n", 1877 error); 1878 goto fail_1; 1879 } 1880 } 1881 1882 for (i = 0; i < adapter->num_rx_desc; i++) { 1883 if (ixgb_get_buf(i, adapter, NULL) == ENOBUFS) { 1884 adapter->rx_buffer_area[i].m_head = NULL; 1885 adapter->rx_desc_base[i].buff_addr = 0; 1886 return (ENOBUFS); 1887 } 1888 } 1889 1890 return (0); 1891fail_1: 1892 bus_dma_tag_destroy(adapter->rxtag); 1893fail_0: 1894 adapter->rxtag = NULL; 1895 free(adapter->rx_buffer_area, M_DEVBUF); 1896 adapter->rx_buffer_area = NULL; 1897 return (error); 1898} 1899 1900/********************************************************************* 1901 * 1902 * Allocate and initialize receive structures. 1903 * 1904 **********************************************************************/ 1905static int 1906ixgb_setup_receive_structures(struct adapter * adapter) 1907{ 1908 bzero((void *)adapter->rx_desc_base, 1909 (sizeof(struct ixgb_rx_desc)) * adapter->num_rx_desc); 1910 1911 if (ixgb_allocate_receive_structures(adapter)) 1912 return ENOMEM; 1913 1914 /* Setup our descriptor pointers */ 1915 adapter->next_rx_desc_to_check = 0; 1916 adapter->next_rx_desc_to_use = 0; 1917 return (0); 1918} 1919 1920/********************************************************************* 1921 * 1922 * Enable receive unit. 1923 * 1924 **********************************************************************/ 1925static void 1926ixgb_initialize_receive_unit(struct adapter * adapter) 1927{ 1928 u_int32_t reg_rctl; 1929 u_int32_t reg_rxcsum; 1930 u_int32_t reg_rxdctl; 1931 struct ifnet *ifp; 1932 u_int64_t rdba = adapter->rxdma.dma_paddr; 1933 1934 ifp = adapter->ifp; 1935 1936 /* 1937 * Make sure receives are disabled while setting up the descriptor 1938 * ring 1939 */ 1940 reg_rctl = IXGB_READ_REG(&adapter->hw, RCTL); 1941 IXGB_WRITE_REG(&adapter->hw, RCTL, reg_rctl & ~IXGB_RCTL_RXEN); 1942 1943 /* Set the Receive Delay Timer Register */ 1944 IXGB_WRITE_REG(&adapter->hw, RDTR, 1945 adapter->rx_int_delay); 1946 1947 1948 /* Setup the Base and Length of the Rx Descriptor Ring */ 1949 IXGB_WRITE_REG(&adapter->hw, RDBAL, 1950 (rdba & 0x00000000ffffffffULL)); 1951 IXGB_WRITE_REG(&adapter->hw, RDBAH, (rdba >> 32)); 1952 IXGB_WRITE_REG(&adapter->hw, RDLEN, adapter->num_rx_desc * 1953 sizeof(struct ixgb_rx_desc)); 1954 1955 /* Setup the HW Rx Head and Tail Descriptor Pointers */ 1956 IXGB_WRITE_REG(&adapter->hw, RDH, 0); 1957 1958 IXGB_WRITE_REG(&adapter->hw, RDT, adapter->num_rx_desc - 1); 1959 1960 1961 1962 reg_rxdctl = RXDCTL_WTHRESH_DEFAULT << IXGB_RXDCTL_WTHRESH_SHIFT 1963 | RXDCTL_HTHRESH_DEFAULT << IXGB_RXDCTL_HTHRESH_SHIFT 1964 | RXDCTL_PTHRESH_DEFAULT << IXGB_RXDCTL_PTHRESH_SHIFT; 1965 IXGB_WRITE_REG(&adapter->hw, RXDCTL, reg_rxdctl); 1966 1967 1968 adapter->raidc = 1; 1969 if (adapter->raidc) { 1970 uint32_t raidc; 1971 uint8_t poll_threshold; 1972#define IXGB_RAIDC_POLL_DEFAULT 120 1973 1974 poll_threshold = ((adapter->num_rx_desc - 1) >> 3); 1975 poll_threshold >>= 1; 1976 poll_threshold &= 0x3F; 1977 raidc = IXGB_RAIDC_EN | IXGB_RAIDC_RXT_GATE | 1978 (IXGB_RAIDC_POLL_DEFAULT << IXGB_RAIDC_POLL_SHIFT) | 1979 (adapter->rx_int_delay << IXGB_RAIDC_DELAY_SHIFT) | 1980 poll_threshold; 1981 IXGB_WRITE_REG(&adapter->hw, RAIDC, raidc); 1982 } 1983 /* Enable Receive Checksum Offload for TCP and UDP ? */ 1984 if (ifp->if_capenable & IFCAP_RXCSUM) { 1985 reg_rxcsum = IXGB_READ_REG(&adapter->hw, RXCSUM); 1986 reg_rxcsum |= IXGB_RXCSUM_TUOFL; 1987 IXGB_WRITE_REG(&adapter->hw, RXCSUM, reg_rxcsum); 1988 } 1989 /* Setup the Receive Control Register */ 1990 reg_rctl = IXGB_READ_REG(&adapter->hw, RCTL); 1991 reg_rctl &= ~(3 << IXGB_RCTL_MO_SHIFT); 1992 reg_rctl |= IXGB_RCTL_BAM | IXGB_RCTL_RDMTS_1_2 | IXGB_RCTL_SECRC | 1993 IXGB_RCTL_CFF | 1994 (adapter->hw.mc_filter_type << IXGB_RCTL_MO_SHIFT); 1995 1996 switch (adapter->rx_buffer_len) { 1997 default: 1998 case IXGB_RXBUFFER_2048: 1999 reg_rctl |= IXGB_RCTL_BSIZE_2048; 2000 break; 2001 case IXGB_RXBUFFER_4096: 2002 reg_rctl |= IXGB_RCTL_BSIZE_4096; 2003 break; 2004 case IXGB_RXBUFFER_8192: 2005 reg_rctl |= IXGB_RCTL_BSIZE_8192; 2006 break; 2007 case IXGB_RXBUFFER_16384: 2008 reg_rctl |= IXGB_RCTL_BSIZE_16384; 2009 break; 2010 } 2011 2012 reg_rctl |= IXGB_RCTL_RXEN; 2013 2014 2015 /* Enable Receives */ 2016 IXGB_WRITE_REG(&adapter->hw, RCTL, reg_rctl); 2017 2018 return; 2019} 2020 2021/********************************************************************* 2022 * 2023 * Free receive related data structures. 2024 * 2025 **********************************************************************/ 2026static void 2027ixgb_free_receive_structures(struct adapter * adapter) 2028{ 2029 struct ixgb_buffer *rx_buffer; 2030 int i; 2031 2032 INIT_DEBUGOUT("free_receive_structures: begin"); 2033 2034 if (adapter->rx_buffer_area != NULL) { 2035 rx_buffer = adapter->rx_buffer_area; 2036 for (i = 0; i < adapter->num_rx_desc; i++, rx_buffer++) { 2037 if (rx_buffer->map != NULL) { 2038 bus_dmamap_unload(adapter->rxtag, rx_buffer->map); 2039 bus_dmamap_destroy(adapter->rxtag, rx_buffer->map); 2040 } 2041 if (rx_buffer->m_head != NULL) 2042 m_freem(rx_buffer->m_head); 2043 rx_buffer->m_head = NULL; 2044 } 2045 } 2046 if (adapter->rx_buffer_area != NULL) { 2047 free(adapter->rx_buffer_area, M_DEVBUF); 2048 adapter->rx_buffer_area = NULL; 2049 } 2050 if (adapter->rxtag != NULL) { 2051 bus_dma_tag_destroy(adapter->rxtag); 2052 adapter->rxtag = NULL; 2053 } 2054 return; 2055} 2056 2057/********************************************************************* 2058 * 2059 * This routine executes in interrupt context. It replenishes 2060 * the mbufs in the descriptor and sends data which has been 2061 * dma'ed into host memory to upper layer. 2062 * 2063 * We loop at most count times if count is > 0, or until done if 2064 * count < 0. 2065 * 2066 *********************************************************************/ 2067static int 2068ixgb_process_receive_interrupts(struct adapter * adapter, int count) 2069{ 2070 struct ifnet *ifp; 2071 struct mbuf *mp; 2072#if __FreeBSD_version < 500000 2073 struct ether_header *eh; 2074#endif 2075 int eop = 0; 2076 int len; 2077 u_int8_t accept_frame = 0; 2078 int i; 2079 int next_to_use = 0; 2080 int eop_desc; 2081 int rx_npkts = 0; 2082 /* Pointer to the receive descriptor being examined. */ 2083 struct ixgb_rx_desc *current_desc; 2084 2085 IXGB_LOCK_ASSERT(adapter); 2086 2087 ifp = adapter->ifp; 2088 i = adapter->next_rx_desc_to_check; 2089 next_to_use = adapter->next_rx_desc_to_use; 2090 eop_desc = adapter->next_rx_desc_to_check; 2091 current_desc = &adapter->rx_desc_base[i]; 2092 2093 if (!((current_desc->status) & IXGB_RX_DESC_STATUS_DD)) { 2094#ifdef _SV_ 2095 adapter->no_pkts_avail++; 2096#endif 2097 return (rx_npkts); 2098 } 2099 while ((current_desc->status & IXGB_RX_DESC_STATUS_DD) && (count != 0)) { 2100 2101 mp = adapter->rx_buffer_area[i].m_head; 2102 bus_dmamap_sync(adapter->rxtag, adapter->rx_buffer_area[i].map, 2103 BUS_DMASYNC_POSTREAD); 2104 accept_frame = 1; 2105 if (current_desc->status & IXGB_RX_DESC_STATUS_EOP) { 2106 count--; 2107 eop = 1; 2108 } else { 2109 eop = 0; 2110 } 2111 len = current_desc->length; 2112 2113 if (current_desc->errors & (IXGB_RX_DESC_ERRORS_CE | 2114 IXGB_RX_DESC_ERRORS_SE | IXGB_RX_DESC_ERRORS_P | 2115 IXGB_RX_DESC_ERRORS_RXE)) { 2116 accept_frame = 0; 2117 } 2118 if (accept_frame) { 2119 2120 /* Assign correct length to the current fragment */ 2121 mp->m_len = len; 2122 2123 if (adapter->fmp == NULL) { 2124 mp->m_pkthdr.len = len; 2125 adapter->fmp = mp; /* Store the first mbuf */ 2126 adapter->lmp = mp; 2127 } else { 2128 /* Chain mbuf's together */ 2129 mp->m_flags &= ~M_PKTHDR; 2130 adapter->lmp->m_next = mp; 2131 adapter->lmp = adapter->lmp->m_next; 2132 adapter->fmp->m_pkthdr.len += len; 2133 } 2134 2135 if (eop) { 2136 eop_desc = i; 2137 adapter->fmp->m_pkthdr.rcvif = ifp; 2138 2139#if __FreeBSD_version < 500000 2140 eh = mtod(adapter->fmp, struct ether_header *); 2141 2142 /* Remove ethernet header from mbuf */ 2143 m_adj(adapter->fmp, sizeof(struct ether_header)); 2144 ixgb_receive_checksum(adapter, current_desc, 2145 adapter->fmp); 2146 2147 if (current_desc->status & IXGB_RX_DESC_STATUS_VP) 2148 VLAN_INPUT_TAG(eh, adapter->fmp, 2149 current_desc->special); 2150 else 2151 ether_input(ifp, eh, adapter->fmp); 2152#else 2153 ixgb_receive_checksum(adapter, current_desc, 2154 adapter->fmp); 2155#if __FreeBSD_version < 700000 2156 if (current_desc->status & IXGB_RX_DESC_STATUS_VP) 2157 VLAN_INPUT_TAG(ifp, adapter->fmp, 2158 current_desc->special); 2159#else 2160 if (current_desc->status & IXGB_RX_DESC_STATUS_VP) { 2161 adapter->fmp->m_pkthdr.ether_vtag = 2162 current_desc->special; 2163 adapter->fmp->m_flags |= M_VLANTAG; 2164 } 2165#endif 2166 2167 if (adapter->fmp != NULL) { 2168 IXGB_UNLOCK(adapter); 2169 (*ifp->if_input) (ifp, adapter->fmp); 2170 IXGB_LOCK(adapter); 2171 rx_npkts++; 2172 } 2173#endif 2174 adapter->fmp = NULL; 2175 adapter->lmp = NULL; 2176 } 2177 adapter->rx_buffer_area[i].m_head = NULL; 2178 } else { 2179 adapter->dropped_pkts++; 2180 if (adapter->fmp != NULL) 2181 m_freem(adapter->fmp); 2182 adapter->fmp = NULL; 2183 adapter->lmp = NULL; 2184 } 2185 2186 /* Zero out the receive descriptors status */ 2187 current_desc->status = 0; 2188 2189 /* Advance our pointers to the next descriptor */ 2190 if (++i == adapter->num_rx_desc) { 2191 i = 0; 2192 current_desc = adapter->rx_desc_base; 2193 } else 2194 current_desc++; 2195 } 2196 adapter->next_rx_desc_to_check = i; 2197 2198 if (--i < 0) 2199 i = (adapter->num_rx_desc - 1); 2200 2201 /* 2202 * 82597EX: Workaround for redundent write back in receive descriptor ring (causes 2203 * memory corruption). Avoid using and re-submitting the most recently received RX 2204 * descriptor back to hardware. 2205 * 2206 * if(Last written back descriptor == EOP bit set descriptor) 2207 * then avoid re-submitting the most recently received RX descriptor 2208 * back to hardware. 2209 * if(Last written back descriptor != EOP bit set descriptor) 2210 * then avoid re-submitting the most recently received RX descriptors 2211 * till last EOP bit set descriptor. 2212 */ 2213 if (eop_desc != i) { 2214 if (++eop_desc == adapter->num_rx_desc) 2215 eop_desc = 0; 2216 i = eop_desc; 2217 } 2218 /* Replenish the descriptors with new mbufs till last EOP bit set descriptor */ 2219 while (next_to_use != i) { 2220 current_desc = &adapter->rx_desc_base[next_to_use]; 2221 if ((current_desc->errors & (IXGB_RX_DESC_ERRORS_CE | 2222 IXGB_RX_DESC_ERRORS_SE | IXGB_RX_DESC_ERRORS_P | 2223 IXGB_RX_DESC_ERRORS_RXE))) { 2224 mp = adapter->rx_buffer_area[next_to_use].m_head; 2225 ixgb_get_buf(next_to_use, adapter, mp); 2226 } else { 2227 if (ixgb_get_buf(next_to_use, adapter, NULL) == ENOBUFS) 2228 break; 2229 } 2230 /* Advance our pointers to the next descriptor */ 2231 if (++next_to_use == adapter->num_rx_desc) { 2232 next_to_use = 0; 2233 current_desc = adapter->rx_desc_base; 2234 } else 2235 current_desc++; 2236 } 2237 adapter->next_rx_desc_to_use = next_to_use; 2238 if (--next_to_use < 0) 2239 next_to_use = (adapter->num_rx_desc - 1); 2240 /* Advance the IXGB's Receive Queue #0 "Tail Pointer" */ 2241 IXGB_WRITE_REG(&adapter->hw, RDT, next_to_use); 2242 2243 return (rx_npkts); 2244} 2245 2246/********************************************************************* 2247 * 2248 * Verify that the hardware indicated that the checksum is valid. 2249 * Inform the stack about the status of checksum so that stack 2250 * doesn't spend time verifying the checksum. 2251 * 2252 *********************************************************************/ 2253static void 2254ixgb_receive_checksum(struct adapter * adapter, 2255 struct ixgb_rx_desc * rx_desc, 2256 struct mbuf * mp) 2257{ 2258 if (rx_desc->status & IXGB_RX_DESC_STATUS_IXSM) { 2259 mp->m_pkthdr.csum_flags = 0; 2260 return; 2261 } 2262 if (rx_desc->status & IXGB_RX_DESC_STATUS_IPCS) { 2263 /* Did it pass? */ 2264 if (!(rx_desc->errors & IXGB_RX_DESC_ERRORS_IPE)) { 2265 /* IP Checksum Good */ 2266 mp->m_pkthdr.csum_flags = CSUM_IP_CHECKED; 2267 mp->m_pkthdr.csum_flags |= CSUM_IP_VALID; 2268 2269 } else { 2270 mp->m_pkthdr.csum_flags = 0; 2271 } 2272 } 2273 if (rx_desc->status & IXGB_RX_DESC_STATUS_TCPCS) { 2274 /* Did it pass? */ 2275 if (!(rx_desc->errors & IXGB_RX_DESC_ERRORS_TCPE)) { 2276 mp->m_pkthdr.csum_flags |= 2277 (CSUM_DATA_VALID | CSUM_PSEUDO_HDR); 2278 mp->m_pkthdr.csum_data = htons(0xffff); 2279 } 2280 } 2281 return; 2282} 2283 2284 2285static void 2286ixgb_enable_vlans(struct adapter * adapter) 2287{ 2288 uint32_t ctrl; 2289 2290 ctrl = IXGB_READ_REG(&adapter->hw, CTRL0); 2291 ctrl |= IXGB_CTRL0_VME; 2292 IXGB_WRITE_REG(&adapter->hw, CTRL0, ctrl); 2293 2294 return; 2295} 2296 2297 2298static void 2299ixgb_enable_intr(struct adapter * adapter) 2300{ 2301 IXGB_WRITE_REG(&adapter->hw, IMS, (IXGB_INT_RXT0 | IXGB_INT_TXDW | 2302 IXGB_INT_RXDMT0 | IXGB_INT_LSC | IXGB_INT_RXO)); 2303 return; 2304} 2305 2306static void 2307ixgb_disable_intr(struct adapter * adapter) 2308{ 2309 IXGB_WRITE_REG(&adapter->hw, IMC, ~0); 2310 return; 2311} 2312 2313void 2314ixgb_write_pci_cfg(struct ixgb_hw * hw, 2315 uint32_t reg, 2316 uint16_t * value) 2317{ 2318 pci_write_config(((struct ixgb_osdep *) hw->back)->dev, reg, 2319 *value, 2); 2320} 2321 2322/********************************************************************** 2323 * 2324 * Update the board statistics counters. 2325 * 2326 **********************************************************************/ 2327static void 2328ixgb_update_stats_counters(struct adapter * adapter) 2329{ 2330 struct ifnet *ifp; 2331 2332 adapter->stats.crcerrs += IXGB_READ_REG(&adapter->hw, CRCERRS); 2333 adapter->stats.gprcl += IXGB_READ_REG(&adapter->hw, GPRCL); 2334 adapter->stats.gprch += IXGB_READ_REG(&adapter->hw, GPRCH); 2335 adapter->stats.gorcl += IXGB_READ_REG(&adapter->hw, GORCL); 2336 adapter->stats.gorch += IXGB_READ_REG(&adapter->hw, GORCH); 2337 adapter->stats.bprcl += IXGB_READ_REG(&adapter->hw, BPRCL); 2338 adapter->stats.bprch += IXGB_READ_REG(&adapter->hw, BPRCH); 2339 adapter->stats.mprcl += IXGB_READ_REG(&adapter->hw, MPRCL); 2340 adapter->stats.mprch += IXGB_READ_REG(&adapter->hw, MPRCH); 2341 adapter->stats.roc += IXGB_READ_REG(&adapter->hw, ROC); 2342 2343 adapter->stats.mpc += IXGB_READ_REG(&adapter->hw, MPC); 2344 adapter->stats.dc += IXGB_READ_REG(&adapter->hw, DC); 2345 adapter->stats.rlec += IXGB_READ_REG(&adapter->hw, RLEC); 2346 adapter->stats.xonrxc += IXGB_READ_REG(&adapter->hw, XONRXC); 2347 adapter->stats.xontxc += IXGB_READ_REG(&adapter->hw, XONTXC); 2348 adapter->stats.xoffrxc += IXGB_READ_REG(&adapter->hw, XOFFRXC); 2349 adapter->stats.xofftxc += IXGB_READ_REG(&adapter->hw, XOFFTXC); 2350 adapter->stats.gptcl += IXGB_READ_REG(&adapter->hw, GPTCL); 2351 adapter->stats.gptch += IXGB_READ_REG(&adapter->hw, GPTCH); 2352 adapter->stats.gotcl += IXGB_READ_REG(&adapter->hw, GOTCL); 2353 adapter->stats.gotch += IXGB_READ_REG(&adapter->hw, GOTCH); 2354 adapter->stats.ruc += IXGB_READ_REG(&adapter->hw, RUC); 2355 adapter->stats.rfc += IXGB_READ_REG(&adapter->hw, RFC); 2356 adapter->stats.rjc += IXGB_READ_REG(&adapter->hw, RJC); 2357 adapter->stats.torl += IXGB_READ_REG(&adapter->hw, TORL); 2358 adapter->stats.torh += IXGB_READ_REG(&adapter->hw, TORH); 2359 adapter->stats.totl += IXGB_READ_REG(&adapter->hw, TOTL); 2360 adapter->stats.toth += IXGB_READ_REG(&adapter->hw, TOTH); 2361 adapter->stats.tprl += IXGB_READ_REG(&adapter->hw, TPRL); 2362 adapter->stats.tprh += IXGB_READ_REG(&adapter->hw, TPRH); 2363 adapter->stats.tptl += IXGB_READ_REG(&adapter->hw, TPTL); 2364 adapter->stats.tpth += IXGB_READ_REG(&adapter->hw, TPTH); 2365 adapter->stats.plt64c += IXGB_READ_REG(&adapter->hw, PLT64C); 2366 adapter->stats.mptcl += IXGB_READ_REG(&adapter->hw, MPTCL); 2367 adapter->stats.mptch += IXGB_READ_REG(&adapter->hw, MPTCH); 2368 adapter->stats.bptcl += IXGB_READ_REG(&adapter->hw, BPTCL); 2369 adapter->stats.bptch += IXGB_READ_REG(&adapter->hw, BPTCH); 2370 2371 adapter->stats.uprcl += IXGB_READ_REG(&adapter->hw, UPRCL); 2372 adapter->stats.uprch += IXGB_READ_REG(&adapter->hw, UPRCH); 2373 adapter->stats.vprcl += IXGB_READ_REG(&adapter->hw, VPRCL); 2374 adapter->stats.vprch += IXGB_READ_REG(&adapter->hw, VPRCH); 2375 adapter->stats.jprcl += IXGB_READ_REG(&adapter->hw, JPRCL); 2376 adapter->stats.jprch += IXGB_READ_REG(&adapter->hw, JPRCH); 2377 adapter->stats.rnbc += IXGB_READ_REG(&adapter->hw, RNBC); 2378 adapter->stats.icbc += IXGB_READ_REG(&adapter->hw, ICBC); 2379 adapter->stats.ecbc += IXGB_READ_REG(&adapter->hw, ECBC); 2380 adapter->stats.uptcl += IXGB_READ_REG(&adapter->hw, UPTCL); 2381 adapter->stats.uptch += IXGB_READ_REG(&adapter->hw, UPTCH); 2382 adapter->stats.vptcl += IXGB_READ_REG(&adapter->hw, VPTCL); 2383 adapter->stats.vptch += IXGB_READ_REG(&adapter->hw, VPTCH); 2384 adapter->stats.jptcl += IXGB_READ_REG(&adapter->hw, JPTCL); 2385 adapter->stats.jptch += IXGB_READ_REG(&adapter->hw, JPTCH); 2386 adapter->stats.tsctc += IXGB_READ_REG(&adapter->hw, TSCTC); 2387 adapter->stats.tsctfc += IXGB_READ_REG(&adapter->hw, TSCTFC); 2388 adapter->stats.ibic += IXGB_READ_REG(&adapter->hw, IBIC); 2389 adapter->stats.lfc += IXGB_READ_REG(&adapter->hw, LFC); 2390 adapter->stats.pfrc += IXGB_READ_REG(&adapter->hw, PFRC); 2391 adapter->stats.pftc += IXGB_READ_REG(&adapter->hw, PFTC); 2392 adapter->stats.mcfrc += IXGB_READ_REG(&adapter->hw, MCFRC); 2393 2394 ifp = adapter->ifp; 2395 2396 /* Fill out the OS statistics structure */ 2397 ifp->if_ipackets = adapter->stats.gprcl; 2398 ifp->if_opackets = adapter->stats.gptcl; 2399 ifp->if_ibytes = adapter->stats.gorcl; 2400 ifp->if_obytes = adapter->stats.gotcl; 2401 ifp->if_imcasts = adapter->stats.mprcl; 2402 ifp->if_collisions = 0; 2403 2404 /* Rx Errors */ 2405 ifp->if_ierrors = 2406 adapter->dropped_pkts + 2407 adapter->stats.crcerrs + 2408 adapter->stats.rnbc + 2409 adapter->stats.mpc + 2410 adapter->stats.rlec; 2411 2412 2413} 2414 2415 2416/********************************************************************** 2417 * 2418 * This routine is called only when ixgb_display_debug_stats is enabled. 2419 * This routine provides a way to take a look at important statistics 2420 * maintained by the driver and hardware. 2421 * 2422 **********************************************************************/ 2423static void 2424ixgb_print_hw_stats(struct adapter * adapter) 2425{ 2426 char buf_speed[100], buf_type[100]; 2427 ixgb_bus_speed bus_speed; 2428 ixgb_bus_type bus_type; 2429 device_t dev; 2430 2431 dev = adapter->dev; 2432#ifdef _SV_ 2433 device_printf(dev, "Packets not Avail = %ld\n", 2434 adapter->no_pkts_avail); 2435 device_printf(dev, "CleanTxInterrupts = %ld\n", 2436 adapter->clean_tx_interrupts); 2437 device_printf(dev, "ICR RXDMT0 = %lld\n", 2438 (long long)adapter->sv_stats.icr_rxdmt0); 2439 device_printf(dev, "ICR RXO = %lld\n", 2440 (long long)adapter->sv_stats.icr_rxo); 2441 device_printf(dev, "ICR RXT0 = %lld\n", 2442 (long long)adapter->sv_stats.icr_rxt0); 2443 device_printf(dev, "ICR TXDW = %lld\n", 2444 (long long)adapter->sv_stats.icr_TXDW); 2445#endif /* _SV_ */ 2446 2447 bus_speed = adapter->hw.bus.speed; 2448 bus_type = adapter->hw.bus.type; 2449 sprintf(buf_speed, 2450 bus_speed == ixgb_bus_speed_33 ? "33MHz" : 2451 bus_speed == ixgb_bus_speed_66 ? "66MHz" : 2452 bus_speed == ixgb_bus_speed_100 ? "100MHz" : 2453 bus_speed == ixgb_bus_speed_133 ? "133MHz" : 2454 "UNKNOWN"); 2455 device_printf(dev, "PCI_Bus_Speed = %s\n", 2456 buf_speed); 2457 2458 sprintf(buf_type, 2459 bus_type == ixgb_bus_type_pci ? "PCI" : 2460 bus_type == ixgb_bus_type_pcix ? "PCI-X" : 2461 "UNKNOWN"); 2462 device_printf(dev, "PCI_Bus_Type = %s\n", 2463 buf_type); 2464 2465 device_printf(dev, "Tx Descriptors not Avail1 = %ld\n", 2466 adapter->no_tx_desc_avail1); 2467 device_printf(dev, "Tx Descriptors not Avail2 = %ld\n", 2468 adapter->no_tx_desc_avail2); 2469 device_printf(dev, "Std Mbuf Failed = %ld\n", 2470 adapter->mbuf_alloc_failed); 2471 device_printf(dev, "Std Cluster Failed = %ld\n", 2472 adapter->mbuf_cluster_failed); 2473 2474 device_printf(dev, "Defer count = %lld\n", 2475 (long long)adapter->stats.dc); 2476 device_printf(dev, "Missed Packets = %lld\n", 2477 (long long)adapter->stats.mpc); 2478 device_printf(dev, "Receive No Buffers = %lld\n", 2479 (long long)adapter->stats.rnbc); 2480 device_printf(dev, "Receive length errors = %lld\n", 2481 (long long)adapter->stats.rlec); 2482 device_printf(dev, "Crc errors = %lld\n", 2483 (long long)adapter->stats.crcerrs); 2484 device_printf(dev, "Driver dropped packets = %ld\n", 2485 adapter->dropped_pkts); 2486 2487 device_printf(dev, "XON Rcvd = %lld\n", 2488 (long long)adapter->stats.xonrxc); 2489 device_printf(dev, "XON Xmtd = %lld\n", 2490 (long long)adapter->stats.xontxc); 2491 device_printf(dev, "XOFF Rcvd = %lld\n", 2492 (long long)adapter->stats.xoffrxc); 2493 device_printf(dev, "XOFF Xmtd = %lld\n", 2494 (long long)adapter->stats.xofftxc); 2495 2496 device_printf(dev, "Good Packets Rcvd = %lld\n", 2497 (long long)adapter->stats.gprcl); 2498 device_printf(dev, "Good Packets Xmtd = %lld\n", 2499 (long long)adapter->stats.gptcl); 2500 2501 device_printf(dev, "Jumbo frames recvd = %lld\n", 2502 (long long)adapter->stats.jprcl); 2503 device_printf(dev, "Jumbo frames Xmtd = %lld\n", 2504 (long long)adapter->stats.jptcl); 2505 2506 return; 2507 2508} 2509 2510static int 2511ixgb_sysctl_stats(SYSCTL_HANDLER_ARGS) 2512{ 2513 int error; 2514 int result; 2515 struct adapter *adapter; 2516 2517 result = -1; 2518 error = sysctl_handle_int(oidp, &result, 0, req); 2519 2520 if (error || !req->newptr) 2521 return (error); 2522 2523 if (result == 1) { 2524 adapter = (struct adapter *) arg1; 2525 ixgb_print_hw_stats(adapter); 2526 } 2527 return error; 2528} 2529