oce_if.c revision 246799
1/*- 2 * Copyright (C) 2012 Emulex 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * 3. Neither the name of the Emulex Corporation nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 * 31 * Contact Information: 32 * freebsd-drivers@emulex.com 33 * 34 * Emulex 35 * 3333 Susan Street 36 * Costa Mesa, CA 92626 37 */ 38 39/* $FreeBSD: head/sys/dev/oce/oce_if.c 246799 2013-02-14 17:34:17Z jpaetzel $ */ 40 41#include "opt_inet6.h" 42#include "opt_inet.h" 43 44#include "oce_if.h" 45 46 47/* Driver entry points prototypes */ 48static int oce_probe(device_t dev); 49static int oce_attach(device_t dev); 50static int oce_detach(device_t dev); 51static int oce_shutdown(device_t dev); 52static int oce_ioctl(struct ifnet *ifp, u_long command, caddr_t data); 53static void oce_init(void *xsc); 54static int oce_multiq_start(struct ifnet *ifp, struct mbuf *m); 55static void oce_multiq_flush(struct ifnet *ifp); 56 57/* Driver interrupt routines protypes */ 58static void oce_intr(void *arg, int pending); 59static int oce_setup_intr(POCE_SOFTC sc); 60static int oce_fast_isr(void *arg); 61static int oce_alloc_intr(POCE_SOFTC sc, int vector, 62 void (*isr) (void *arg, int pending)); 63 64/* Media callbacks prototypes */ 65static void oce_media_status(struct ifnet *ifp, struct ifmediareq *req); 66static int oce_media_change(struct ifnet *ifp); 67 68/* Transmit routines prototypes */ 69static int oce_tx(POCE_SOFTC sc, struct mbuf **mpp, int wq_index); 70static void oce_tx_restart(POCE_SOFTC sc, struct oce_wq *wq); 71static void oce_tx_complete(struct oce_wq *wq, uint32_t wqe_idx, 72 uint32_t status); 73static int oce_multiq_transmit(struct ifnet *ifp, struct mbuf *m, 74 struct oce_wq *wq); 75 76/* Receive routines prototypes */ 77static void oce_discard_rx_comp(struct oce_rq *rq, struct oce_nic_rx_cqe *cqe); 78static int oce_cqe_vtp_valid(POCE_SOFTC sc, struct oce_nic_rx_cqe *cqe); 79static int oce_cqe_portid_valid(POCE_SOFTC sc, struct oce_nic_rx_cqe *cqe); 80static void oce_rx(struct oce_rq *rq, uint32_t rqe_idx, 81 struct oce_nic_rx_cqe *cqe); 82 83/* Helper function prototypes in this file */ 84static int oce_attach_ifp(POCE_SOFTC sc); 85static void oce_add_vlan(void *arg, struct ifnet *ifp, uint16_t vtag); 86static void oce_del_vlan(void *arg, struct ifnet *ifp, uint16_t vtag); 87static int oce_vid_config(POCE_SOFTC sc); 88static void oce_mac_addr_set(POCE_SOFTC sc); 89static int oce_handle_passthrough(struct ifnet *ifp, caddr_t data); 90static void oce_local_timer(void *arg); 91static void oce_if_deactivate(POCE_SOFTC sc); 92static void oce_if_activate(POCE_SOFTC sc); 93static void setup_max_queues_want(POCE_SOFTC sc); 94static void update_queues_got(POCE_SOFTC sc); 95static void process_link_state(POCE_SOFTC sc, 96 struct oce_async_cqe_link_state *acqe); 97 98 99/* IP specific */ 100#if defined(INET6) || defined(INET) 101static int oce_init_lro(POCE_SOFTC sc); 102static void oce_rx_flush_lro(struct oce_rq *rq); 103static struct mbuf * oce_tso_setup(POCE_SOFTC sc, struct mbuf **mpp); 104#endif 105 106static device_method_t oce_dispatch[] = { 107 DEVMETHOD(device_probe, oce_probe), 108 DEVMETHOD(device_attach, oce_attach), 109 DEVMETHOD(device_detach, oce_detach), 110 DEVMETHOD(device_shutdown, oce_shutdown), 111 112 DEVMETHOD_END 113}; 114 115static driver_t oce_driver = { 116 "oce", 117 oce_dispatch, 118 sizeof(OCE_SOFTC) 119}; 120static devclass_t oce_devclass; 121 122 123DRIVER_MODULE(oce, pci, oce_driver, oce_devclass, 0, 0); 124MODULE_DEPEND(oce, pci, 1, 1, 1); 125MODULE_DEPEND(oce, ether, 1, 1, 1); 126MODULE_VERSION(oce, 1); 127 128 129/* global vars */ 130const char component_revision[32] = {"///" COMPONENT_REVISION "///"}; 131 132/* Module capabilites and parameters */ 133uint32_t oce_max_rsp_handled = OCE_MAX_RSP_HANDLED; 134uint32_t oce_enable_rss = OCE_MODCAP_RSS; 135 136 137TUNABLE_INT("hw.oce.max_rsp_handled", &oce_max_rsp_handled); 138TUNABLE_INT("hw.oce.enable_rss", &oce_enable_rss); 139 140 141/* Supported devices table */ 142static uint32_t supportedDevices[] = { 143 (PCI_VENDOR_SERVERENGINES << 16) | PCI_PRODUCT_BE2, 144 (PCI_VENDOR_SERVERENGINES << 16) | PCI_PRODUCT_BE3, 145 (PCI_VENDOR_EMULEX << 16) | PCI_PRODUCT_BE3, 146 (PCI_VENDOR_EMULEX << 16) | PCI_PRODUCT_XE201, 147 (PCI_VENDOR_EMULEX << 16) | PCI_PRODUCT_XE201_VF, 148}; 149 150 151 152 153/***************************************************************************** 154 * Driver entry points functions * 155 *****************************************************************************/ 156 157static int 158oce_probe(device_t dev) 159{ 160 uint16_t vendor = 0; 161 uint16_t device = 0; 162 int i = 0; 163 char str[256] = {0}; 164 POCE_SOFTC sc; 165 166 sc = device_get_softc(dev); 167 bzero(sc, sizeof(OCE_SOFTC)); 168 sc->dev = dev; 169 170 vendor = pci_get_vendor(dev); 171 device = pci_get_device(dev); 172 173 for (i = 0; i < (sizeof(supportedDevices) / sizeof(uint32_t)); i++) { 174 if (vendor == ((supportedDevices[i] >> 16) & 0xffff)) { 175 if (device == (supportedDevices[i] & 0xffff)) { 176 sprintf(str, "%s:%s", "Emulex CNA NIC function", 177 component_revision); 178 device_set_desc_copy(dev, str); 179 180 switch (device) { 181 case PCI_PRODUCT_BE2: 182 sc->flags |= OCE_FLAGS_BE2; 183 break; 184 case PCI_PRODUCT_BE3: 185 sc->flags |= OCE_FLAGS_BE3; 186 break; 187 case PCI_PRODUCT_XE201: 188 case PCI_PRODUCT_XE201_VF: 189 sc->flags |= OCE_FLAGS_XE201; 190 break; 191 default: 192 return ENXIO; 193 } 194 return BUS_PROBE_DEFAULT; 195 } 196 } 197 } 198 199 return ENXIO; 200} 201 202 203static int 204oce_attach(device_t dev) 205{ 206 POCE_SOFTC sc; 207 int rc = 0; 208 209 sc = device_get_softc(dev); 210 211 rc = oce_hw_pci_alloc(sc); 212 if (rc) 213 return rc; 214 215 sc->rss_enable = oce_enable_rss; 216 sc->tx_ring_size = OCE_TX_RING_SIZE; 217 sc->rx_ring_size = OCE_RX_RING_SIZE; 218 sc->rq_frag_size = OCE_RQ_BUF_SIZE; 219 sc->flow_control = OCE_DEFAULT_FLOW_CONTROL; 220 sc->promisc = OCE_DEFAULT_PROMISCUOUS; 221 222 LOCK_CREATE(&sc->bmbx_lock, "Mailbox_lock"); 223 LOCK_CREATE(&sc->dev_lock, "Device_lock"); 224 225 /* initialise the hardware */ 226 rc = oce_hw_init(sc); 227 if (rc) 228 goto pci_res_free; 229 230 setup_max_queues_want(sc); 231 232 rc = oce_setup_intr(sc); 233 if (rc) 234 goto mbox_free; 235 236 rc = oce_queue_init_all(sc); 237 if (rc) 238 goto intr_free; 239 240 rc = oce_attach_ifp(sc); 241 if (rc) 242 goto queues_free; 243 244#if defined(INET6) || defined(INET) 245 rc = oce_init_lro(sc); 246 if (rc) 247 goto ifp_free; 248#endif 249 250 rc = oce_hw_start(sc); 251 if (rc) 252 goto lro_free; 253 254 sc->vlan_attach = EVENTHANDLER_REGISTER(vlan_config, 255 oce_add_vlan, sc, EVENTHANDLER_PRI_FIRST); 256 sc->vlan_detach = EVENTHANDLER_REGISTER(vlan_unconfig, 257 oce_del_vlan, sc, EVENTHANDLER_PRI_FIRST); 258 259 rc = oce_stats_init(sc); 260 if (rc) 261 goto vlan_free; 262 263 oce_add_sysctls(sc); 264 265 callout_init(&sc->timer, CALLOUT_MPSAFE); 266 rc = callout_reset(&sc->timer, 2 * hz, oce_local_timer, sc); 267 if (rc) 268 goto stats_free; 269#ifdef DEV_NETMAP 270#endif /* DEV_NETMAP */ 271 272 return 0; 273 274stats_free: 275 callout_drain(&sc->timer); 276 oce_stats_free(sc); 277vlan_free: 278 if (sc->vlan_attach) 279 EVENTHANDLER_DEREGISTER(vlan_config, sc->vlan_attach); 280 if (sc->vlan_detach) 281 EVENTHANDLER_DEREGISTER(vlan_unconfig, sc->vlan_detach); 282 oce_hw_intr_disable(sc); 283lro_free: 284#if defined(INET6) || defined(INET) 285 oce_free_lro(sc); 286ifp_free: 287#endif 288 ether_ifdetach(sc->ifp); 289 if_free(sc->ifp); 290queues_free: 291 oce_queue_release_all(sc); 292intr_free: 293 oce_intr_free(sc); 294mbox_free: 295 oce_dma_free(sc, &sc->bsmbx); 296pci_res_free: 297 oce_hw_pci_free(sc); 298 LOCK_DESTROY(&sc->dev_lock); 299 LOCK_DESTROY(&sc->bmbx_lock); 300 return rc; 301 302} 303 304 305static int 306oce_detach(device_t dev) 307{ 308 POCE_SOFTC sc = device_get_softc(dev); 309 310 LOCK(&sc->dev_lock); 311 oce_if_deactivate(sc); 312 UNLOCK(&sc->dev_lock); 313 314 callout_drain(&sc->timer); 315 316 if (sc->vlan_attach != NULL) 317 EVENTHANDLER_DEREGISTER(vlan_config, sc->vlan_attach); 318 if (sc->vlan_detach != NULL) 319 EVENTHANDLER_DEREGISTER(vlan_unconfig, sc->vlan_detach); 320 321 ether_ifdetach(sc->ifp); 322 323 if_free(sc->ifp); 324 325 oce_hw_shutdown(sc); 326 327 bus_generic_detach(dev); 328 329 return 0; 330} 331 332 333static int 334oce_shutdown(device_t dev) 335{ 336 int rc; 337 338 rc = oce_detach(dev); 339 340 return rc; 341} 342 343 344static int 345oce_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 346{ 347 struct ifreq *ifr = (struct ifreq *)data; 348 POCE_SOFTC sc = ifp->if_softc; 349 int rc = 0; 350 uint32_t u; 351 352 switch (command) { 353 354 case SIOCGIFMEDIA: 355 rc = ifmedia_ioctl(ifp, ifr, &sc->media, command); 356 break; 357 358 case SIOCSIFMTU: 359 if (ifr->ifr_mtu > OCE_MAX_MTU) 360 rc = EINVAL; 361 else 362 ifp->if_mtu = ifr->ifr_mtu; 363 break; 364 365 case SIOCSIFFLAGS: 366 if (ifp->if_flags & IFF_UP) { 367 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 368 sc->ifp->if_drv_flags |= IFF_DRV_RUNNING; 369 oce_init(sc); 370 } 371 device_printf(sc->dev, "Interface Up\n"); 372 } else { 373 LOCK(&sc->dev_lock); 374 375 sc->ifp->if_drv_flags &= 376 ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 377 oce_if_deactivate(sc); 378 379 UNLOCK(&sc->dev_lock); 380 381 device_printf(sc->dev, "Interface Down\n"); 382 } 383 384 if ((ifp->if_flags & IFF_PROMISC) && !sc->promisc) { 385 sc->promisc = TRUE; 386 oce_rxf_set_promiscuous(sc, sc->promisc); 387 } else if (!(ifp->if_flags & IFF_PROMISC) && sc->promisc) { 388 sc->promisc = FALSE; 389 oce_rxf_set_promiscuous(sc, sc->promisc); 390 } 391 392 break; 393 394 case SIOCADDMULTI: 395 case SIOCDELMULTI: 396 rc = oce_hw_update_multicast(sc); 397 if (rc) 398 device_printf(sc->dev, 399 "Update multicast address failed\n"); 400 break; 401 402 case SIOCSIFCAP: 403 u = ifr->ifr_reqcap ^ ifp->if_capenable; 404 405 if (u & IFCAP_TXCSUM) { 406 ifp->if_capenable ^= IFCAP_TXCSUM; 407 ifp->if_hwassist ^= (CSUM_TCP | CSUM_UDP | CSUM_IP); 408 409 if (IFCAP_TSO & ifp->if_capenable && 410 !(IFCAP_TXCSUM & ifp->if_capenable)) { 411 ifp->if_capenable &= ~IFCAP_TSO; 412 ifp->if_hwassist &= ~CSUM_TSO; 413 if_printf(ifp, 414 "TSO disabled due to -txcsum.\n"); 415 } 416 } 417 418 if (u & IFCAP_RXCSUM) 419 ifp->if_capenable ^= IFCAP_RXCSUM; 420 421 if (u & IFCAP_TSO4) { 422 ifp->if_capenable ^= IFCAP_TSO4; 423 424 if (IFCAP_TSO & ifp->if_capenable) { 425 if (IFCAP_TXCSUM & ifp->if_capenable) 426 ifp->if_hwassist |= CSUM_TSO; 427 else { 428 ifp->if_capenable &= ~IFCAP_TSO; 429 ifp->if_hwassist &= ~CSUM_TSO; 430 if_printf(ifp, 431 "Enable txcsum first.\n"); 432 rc = EAGAIN; 433 } 434 } else 435 ifp->if_hwassist &= ~CSUM_TSO; 436 } 437 438 if (u & IFCAP_VLAN_HWTAGGING) 439 ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING; 440 441 if (u & IFCAP_VLAN_HWFILTER) { 442 ifp->if_capenable ^= IFCAP_VLAN_HWFILTER; 443 oce_vid_config(sc); 444 } 445#if defined(INET6) || defined(INET) 446 if (u & IFCAP_LRO) 447 ifp->if_capenable ^= IFCAP_LRO; 448#endif 449 450 break; 451 452 case SIOCGPRIVATE_0: 453 rc = oce_handle_passthrough(ifp, data); 454 break; 455 default: 456 rc = ether_ioctl(ifp, command, data); 457 break; 458 } 459 460 return rc; 461} 462 463 464static void 465oce_init(void *arg) 466{ 467 POCE_SOFTC sc = arg; 468 469 LOCK(&sc->dev_lock); 470 471 if (sc->ifp->if_flags & IFF_UP) { 472 oce_if_deactivate(sc); 473 oce_if_activate(sc); 474 } 475 476 UNLOCK(&sc->dev_lock); 477 478} 479 480 481static int 482oce_multiq_start(struct ifnet *ifp, struct mbuf *m) 483{ 484 POCE_SOFTC sc = ifp->if_softc; 485 struct oce_wq *wq = NULL; 486 int queue_index = 0; 487 int status = 0; 488 489 if ((m->m_flags & M_FLOWID) != 0) 490 queue_index = m->m_pkthdr.flowid % sc->nwqs; 491 492 wq = sc->wq[queue_index]; 493 494 if (TRY_LOCK(&wq->tx_lock)) { 495 status = oce_multiq_transmit(ifp, m, wq); 496 UNLOCK(&wq->tx_lock); 497 } else { 498 status = drbr_enqueue(ifp, wq->br, m); 499 } 500 return status; 501 502} 503 504 505static void 506oce_multiq_flush(struct ifnet *ifp) 507{ 508 POCE_SOFTC sc = ifp->if_softc; 509 struct mbuf *m; 510 int i = 0; 511 512 for (i = 0; i < sc->nwqs; i++) { 513 while ((m = buf_ring_dequeue_sc(sc->wq[i]->br)) != NULL) 514 m_freem(m); 515 } 516 if_qflush(ifp); 517} 518 519 520 521/***************************************************************************** 522 * Driver interrupt routines functions * 523 *****************************************************************************/ 524 525static void 526oce_intr(void *arg, int pending) 527{ 528 529 POCE_INTR_INFO ii = (POCE_INTR_INFO) arg; 530 POCE_SOFTC sc = ii->sc; 531 struct oce_eq *eq = ii->eq; 532 struct oce_eqe *eqe; 533 struct oce_cq *cq = NULL; 534 int i, num_eqes = 0; 535 536 537 bus_dmamap_sync(eq->ring->dma.tag, eq->ring->dma.map, 538 BUS_DMASYNC_POSTWRITE); 539 do { 540 eqe = RING_GET_CONSUMER_ITEM_VA(eq->ring, struct oce_eqe); 541 if (eqe->evnt == 0) 542 break; 543 eqe->evnt = 0; 544 bus_dmamap_sync(eq->ring->dma.tag, eq->ring->dma.map, 545 BUS_DMASYNC_POSTWRITE); 546 RING_GET(eq->ring, 1); 547 num_eqes++; 548 549 } while (TRUE); 550 551 if (!num_eqes) 552 goto eq_arm; /* Spurious */ 553 554 /* Clear EQ entries, but dont arm */ 555 oce_arm_eq(sc, eq->eq_id, num_eqes, FALSE, FALSE); 556 557 /* Process TX, RX and MCC. But dont arm CQ*/ 558 for (i = 0; i < eq->cq_valid; i++) { 559 cq = eq->cq[i]; 560 (*cq->cq_handler)(cq->cb_arg); 561 } 562 563 /* Arm all cqs connected to this EQ */ 564 for (i = 0; i < eq->cq_valid; i++) { 565 cq = eq->cq[i]; 566 oce_arm_cq(sc, cq->cq_id, 0, TRUE); 567 } 568 569eq_arm: 570 oce_arm_eq(sc, eq->eq_id, 0, TRUE, FALSE); 571 return; 572} 573 574 575static int 576oce_setup_intr(POCE_SOFTC sc) 577{ 578 int rc = 0, use_intx = 0; 579 int vector = 0, req_vectors = 0; 580 581 if (sc->rss_enable) 582 req_vectors = MAX((sc->nrqs - 1), sc->nwqs); 583 else 584 req_vectors = 1; 585 586 if (sc->flags & OCE_FLAGS_MSIX_CAPABLE) { 587 sc->intr_count = req_vectors; 588 rc = pci_alloc_msix(sc->dev, &sc->intr_count); 589 if (rc != 0) { 590 use_intx = 1; 591 pci_release_msi(sc->dev); 592 } else 593 sc->flags |= OCE_FLAGS_USING_MSIX; 594 } else 595 use_intx = 1; 596 597 if (use_intx) 598 sc->intr_count = 1; 599 600 /* Scale number of queues based on intr we got */ 601 update_queues_got(sc); 602 603 if (use_intx) { 604 device_printf(sc->dev, "Using legacy interrupt\n"); 605 rc = oce_alloc_intr(sc, vector, oce_intr); 606 if (rc) 607 goto error; 608 } else { 609 for (; vector < sc->intr_count; vector++) { 610 rc = oce_alloc_intr(sc, vector, oce_intr); 611 if (rc) 612 goto error; 613 } 614 } 615 616 return 0; 617error: 618 oce_intr_free(sc); 619 return rc; 620} 621 622 623static int 624oce_fast_isr(void *arg) 625{ 626 POCE_INTR_INFO ii = (POCE_INTR_INFO) arg; 627 POCE_SOFTC sc = ii->sc; 628 629 if (ii->eq == NULL) 630 return FILTER_STRAY; 631 632 oce_arm_eq(sc, ii->eq->eq_id, 0, FALSE, TRUE); 633 634 taskqueue_enqueue_fast(ii->tq, &ii->task); 635 636 return FILTER_HANDLED; 637} 638 639 640static int 641oce_alloc_intr(POCE_SOFTC sc, int vector, void (*isr) (void *arg, int pending)) 642{ 643 POCE_INTR_INFO ii = &sc->intrs[vector]; 644 int rc = 0, rr; 645 646 if (vector >= OCE_MAX_EQ) 647 return (EINVAL); 648 649 /* Set the resource id for the interrupt. 650 * MSIx is vector + 1 for the resource id, 651 * INTx is 0 for the resource id. 652 */ 653 if (sc->flags & OCE_FLAGS_USING_MSIX) 654 rr = vector + 1; 655 else 656 rr = 0; 657 ii->intr_res = bus_alloc_resource_any(sc->dev, 658 SYS_RES_IRQ, 659 &rr, RF_ACTIVE|RF_SHAREABLE); 660 ii->irq_rr = rr; 661 if (ii->intr_res == NULL) { 662 device_printf(sc->dev, 663 "Could not allocate interrupt\n"); 664 rc = ENXIO; 665 return rc; 666 } 667 668 TASK_INIT(&ii->task, 0, isr, ii); 669 ii->vector = vector; 670 sprintf(ii->task_name, "oce_task[%d]", ii->vector); 671 ii->tq = taskqueue_create_fast(ii->task_name, 672 M_NOWAIT, 673 taskqueue_thread_enqueue, 674 &ii->tq); 675 taskqueue_start_threads(&ii->tq, 1, PI_NET, "%s taskq", 676 device_get_nameunit(sc->dev)); 677 678 ii->sc = sc; 679 rc = bus_setup_intr(sc->dev, 680 ii->intr_res, 681 INTR_TYPE_NET, 682 oce_fast_isr, NULL, ii, &ii->tag); 683 return rc; 684 685} 686 687 688void 689oce_intr_free(POCE_SOFTC sc) 690{ 691 int i = 0; 692 693 for (i = 0; i < sc->intr_count; i++) { 694 695 if (sc->intrs[i].tag != NULL) 696 bus_teardown_intr(sc->dev, sc->intrs[i].intr_res, 697 sc->intrs[i].tag); 698 if (sc->intrs[i].tq != NULL) 699 taskqueue_free(sc->intrs[i].tq); 700 701 if (sc->intrs[i].intr_res != NULL) 702 bus_release_resource(sc->dev, SYS_RES_IRQ, 703 sc->intrs[i].irq_rr, 704 sc->intrs[i].intr_res); 705 sc->intrs[i].tag = NULL; 706 sc->intrs[i].intr_res = NULL; 707 } 708 709 if (sc->flags & OCE_FLAGS_USING_MSIX) 710 pci_release_msi(sc->dev); 711 712} 713 714 715 716/****************************************************************************** 717* Media callbacks functions * 718******************************************************************************/ 719 720static void 721oce_media_status(struct ifnet *ifp, struct ifmediareq *req) 722{ 723 POCE_SOFTC sc = (POCE_SOFTC) ifp->if_softc; 724 725 726 req->ifm_status = IFM_AVALID; 727 req->ifm_active = IFM_ETHER; 728 729 if (sc->link_status == 1) 730 req->ifm_status |= IFM_ACTIVE; 731 else 732 return; 733 734 switch (sc->link_speed) { 735 case 1: /* 10 Mbps */ 736 req->ifm_active |= IFM_10_T | IFM_FDX; 737 sc->speed = 10; 738 break; 739 case 2: /* 100 Mbps */ 740 req->ifm_active |= IFM_100_TX | IFM_FDX; 741 sc->speed = 100; 742 break; 743 case 3: /* 1 Gbps */ 744 req->ifm_active |= IFM_1000_T | IFM_FDX; 745 sc->speed = 1000; 746 break; 747 case 4: /* 10 Gbps */ 748 req->ifm_active |= IFM_10G_SR | IFM_FDX; 749 sc->speed = 10000; 750 break; 751 } 752 753 return; 754} 755 756 757int 758oce_media_change(struct ifnet *ifp) 759{ 760 return 0; 761} 762 763 764 765 766/***************************************************************************** 767 * Transmit routines functions * 768 *****************************************************************************/ 769 770static int 771oce_tx(POCE_SOFTC sc, struct mbuf **mpp, int wq_index) 772{ 773 int rc = 0, i, retry_cnt = 0; 774 bus_dma_segment_t segs[OCE_MAX_TX_ELEMENTS]; 775 struct mbuf *m, *m_temp; 776 struct oce_wq *wq = sc->wq[wq_index]; 777 struct oce_packet_desc *pd; 778 uint32_t out; 779 struct oce_nic_hdr_wqe *nichdr; 780 struct oce_nic_frag_wqe *nicfrag; 781 int num_wqes; 782 uint32_t reg_value; 783 784 m = *mpp; 785 if (!m) 786 return EINVAL; 787 788 if (!(m->m_flags & M_PKTHDR)) { 789 rc = ENXIO; 790 goto free_ret; 791 } 792 793 if (m->m_pkthdr.csum_flags & CSUM_TSO) { 794 /* consolidate packet buffers for TSO/LSO segment offload */ 795#if defined(INET6) || defined(INET) 796 m = oce_tso_setup(sc, mpp); 797#else 798 m = NULL; 799#endif 800 if (m == NULL) { 801 rc = ENXIO; 802 goto free_ret; 803 } 804 } 805 806 out = wq->packets_out + 1; 807 if (out == OCE_WQ_PACKET_ARRAY_SIZE) 808 out = 0; 809 if (out == wq->packets_in) 810 return EBUSY; 811 812 pd = &wq->pckts[wq->packets_out]; 813retry: 814 rc = bus_dmamap_load_mbuf_sg(wq->tag, 815 pd->map, 816 m, segs, &pd->nsegs, BUS_DMA_NOWAIT); 817 if (rc == 0) { 818 num_wqes = pd->nsegs + 1; 819 if (IS_BE(sc)) { 820 /*Dummy required only for BE3.*/ 821 if (num_wqes & 1) 822 num_wqes++; 823 } 824 if (num_wqes >= RING_NUM_FREE(wq->ring)) { 825 bus_dmamap_unload(wq->tag, pd->map); 826 return EBUSY; 827 } 828 829 bus_dmamap_sync(wq->tag, pd->map, BUS_DMASYNC_PREWRITE); 830 pd->mbuf = m; 831 wq->packets_out = out; 832 833 nichdr = 834 RING_GET_PRODUCER_ITEM_VA(wq->ring, struct oce_nic_hdr_wqe); 835 nichdr->u0.dw[0] = 0; 836 nichdr->u0.dw[1] = 0; 837 nichdr->u0.dw[2] = 0; 838 nichdr->u0.dw[3] = 0; 839 840 nichdr->u0.s.complete = 1; 841 nichdr->u0.s.event = 1; 842 nichdr->u0.s.crc = 1; 843 nichdr->u0.s.forward = 0; 844 nichdr->u0.s.ipcs = (m->m_pkthdr.csum_flags & CSUM_IP) ? 1 : 0; 845 nichdr->u0.s.udpcs = 846 (m->m_pkthdr.csum_flags & CSUM_UDP) ? 1 : 0; 847 nichdr->u0.s.tcpcs = 848 (m->m_pkthdr.csum_flags & CSUM_TCP) ? 1 : 0; 849 nichdr->u0.s.num_wqe = num_wqes; 850 nichdr->u0.s.total_length = m->m_pkthdr.len; 851 if (m->m_flags & M_VLANTAG) { 852 nichdr->u0.s.vlan = 1; /*Vlan present*/ 853 nichdr->u0.s.vlan_tag = m->m_pkthdr.ether_vtag; 854 } 855 if (m->m_pkthdr.csum_flags & CSUM_TSO) { 856 if (m->m_pkthdr.tso_segsz) { 857 nichdr->u0.s.lso = 1; 858 nichdr->u0.s.lso_mss = m->m_pkthdr.tso_segsz; 859 } 860 if (!IS_BE(sc)) 861 nichdr->u0.s.ipcs = 1; 862 } 863 864 RING_PUT(wq->ring, 1); 865 wq->ring->num_used++; 866 867 for (i = 0; i < pd->nsegs; i++) { 868 nicfrag = 869 RING_GET_PRODUCER_ITEM_VA(wq->ring, 870 struct oce_nic_frag_wqe); 871 nicfrag->u0.s.rsvd0 = 0; 872 nicfrag->u0.s.frag_pa_hi = ADDR_HI(segs[i].ds_addr); 873 nicfrag->u0.s.frag_pa_lo = ADDR_LO(segs[i].ds_addr); 874 nicfrag->u0.s.frag_len = segs[i].ds_len; 875 pd->wqe_idx = wq->ring->pidx; 876 RING_PUT(wq->ring, 1); 877 wq->ring->num_used++; 878 } 879 if (num_wqes > (pd->nsegs + 1)) { 880 nicfrag = 881 RING_GET_PRODUCER_ITEM_VA(wq->ring, 882 struct oce_nic_frag_wqe); 883 nicfrag->u0.dw[0] = 0; 884 nicfrag->u0.dw[1] = 0; 885 nicfrag->u0.dw[2] = 0; 886 nicfrag->u0.dw[3] = 0; 887 pd->wqe_idx = wq->ring->pidx; 888 RING_PUT(wq->ring, 1); 889 wq->ring->num_used++; 890 pd->nsegs++; 891 } 892 893 sc->ifp->if_opackets++; 894 wq->tx_stats.tx_reqs++; 895 wq->tx_stats.tx_wrbs += num_wqes; 896 wq->tx_stats.tx_bytes += m->m_pkthdr.len; 897 wq->tx_stats.tx_pkts++; 898 899 bus_dmamap_sync(wq->ring->dma.tag, wq->ring->dma.map, 900 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 901 reg_value = (num_wqes << 16) | wq->wq_id; 902 OCE_WRITE_REG32(sc, db, PD_TXULP_DB, reg_value); 903 904 } else if (rc == EFBIG) { 905 if (retry_cnt == 0) { 906 m_temp = m_defrag(m, M_NOWAIT); 907 if (m_temp == NULL) 908 goto free_ret; 909 m = m_temp; 910 *mpp = m_temp; 911 retry_cnt = retry_cnt + 1; 912 goto retry; 913 } else 914 goto free_ret; 915 } else if (rc == ENOMEM) 916 return rc; 917 else 918 goto free_ret; 919 920 return 0; 921 922free_ret: 923 m_freem(*mpp); 924 *mpp = NULL; 925 return rc; 926} 927 928 929static void 930oce_tx_complete(struct oce_wq *wq, uint32_t wqe_idx, uint32_t status) 931{ 932 uint32_t in; 933 struct oce_packet_desc *pd; 934 POCE_SOFTC sc = (POCE_SOFTC) wq->parent; 935 struct mbuf *m; 936 937 if (wq->packets_out == wq->packets_in) 938 device_printf(sc->dev, "WQ transmit descriptor missing\n"); 939 940 in = wq->packets_in + 1; 941 if (in == OCE_WQ_PACKET_ARRAY_SIZE) 942 in = 0; 943 944 pd = &wq->pckts[wq->packets_in]; 945 wq->packets_in = in; 946 wq->ring->num_used -= (pd->nsegs + 1); 947 bus_dmamap_sync(wq->tag, pd->map, BUS_DMASYNC_POSTWRITE); 948 bus_dmamap_unload(wq->tag, pd->map); 949 950 m = pd->mbuf; 951 m_freem(m); 952 pd->mbuf = NULL; 953 954 if (sc->ifp->if_drv_flags & IFF_DRV_OACTIVE) { 955 if (wq->ring->num_used < (wq->ring->num_items / 2)) { 956 sc->ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE); 957 oce_tx_restart(sc, wq); 958 } 959 } 960} 961 962 963static void 964oce_tx_restart(POCE_SOFTC sc, struct oce_wq *wq) 965{ 966 967 if ((sc->ifp->if_drv_flags & IFF_DRV_RUNNING) != IFF_DRV_RUNNING) 968 return; 969 970#if __FreeBSD_version >= 800000 971 if (!drbr_empty(sc->ifp, wq->br)) 972#else 973 if (!IFQ_DRV_IS_EMPTY(&sc->ifp->if_snd)) 974#endif 975 taskqueue_enqueue_fast(taskqueue_swi, &wq->txtask); 976 977} 978 979 980#if defined(INET6) || defined(INET) 981static struct mbuf * 982oce_tso_setup(POCE_SOFTC sc, struct mbuf **mpp) 983{ 984 struct mbuf *m; 985#ifdef INET 986 struct ip *ip; 987#endif 988#ifdef INET6 989 struct ip6_hdr *ip6; 990#endif 991 struct ether_vlan_header *eh; 992 struct tcphdr *th; 993 uint16_t etype; 994 int total_len = 0, ehdrlen = 0; 995 996 m = *mpp; 997 998 if (M_WRITABLE(m) == 0) { 999 m = m_dup(*mpp, M_NOWAIT); 1000 if (!m) 1001 return NULL; 1002 m_freem(*mpp); 1003 *mpp = m; 1004 } 1005 1006 eh = mtod(m, struct ether_vlan_header *); 1007 if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN)) { 1008 etype = ntohs(eh->evl_proto); 1009 ehdrlen = ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN; 1010 } else { 1011 etype = ntohs(eh->evl_encap_proto); 1012 ehdrlen = ETHER_HDR_LEN; 1013 } 1014 1015 switch (etype) { 1016#ifdef INET 1017 case ETHERTYPE_IP: 1018 ip = (struct ip *)(m->m_data + ehdrlen); 1019 if (ip->ip_p != IPPROTO_TCP) 1020 return NULL; 1021 th = (struct tcphdr *)((caddr_t)ip + (ip->ip_hl << 2)); 1022 1023 total_len = ehdrlen + (ip->ip_hl << 2) + (th->th_off << 2); 1024 break; 1025#endif 1026#ifdef INET6 1027 case ETHERTYPE_IPV6: 1028 ip6 = (struct ip6_hdr *)(m->m_data + ehdrlen); 1029 if (ip6->ip6_nxt != IPPROTO_TCP) 1030 return NULL; 1031 th = (struct tcphdr *)((caddr_t)ip6 + sizeof(struct ip6_hdr)); 1032 1033 total_len = ehdrlen + sizeof(struct ip6_hdr) + (th->th_off << 2); 1034 break; 1035#endif 1036 default: 1037 return NULL; 1038 } 1039 1040 m = m_pullup(m, total_len); 1041 if (!m) 1042 return NULL; 1043 *mpp = m; 1044 return m; 1045 1046} 1047#endif /* INET6 || INET */ 1048 1049void 1050oce_tx_task(void *arg, int npending) 1051{ 1052 struct oce_wq *wq = arg; 1053 POCE_SOFTC sc = wq->parent; 1054 struct ifnet *ifp = sc->ifp; 1055 int rc = 0; 1056 1057#if __FreeBSD_version >= 800000 1058 if (TRY_LOCK(&wq->tx_lock)) { 1059 rc = oce_multiq_transmit(ifp, NULL, wq); 1060 if (rc) { 1061 device_printf(sc->dev, 1062 "TX[%d] restart failed\n", wq->queue_index); 1063 } 1064 UNLOCK(&wq->tx_lock); 1065 } 1066#else 1067 oce_start(ifp); 1068#endif 1069 1070} 1071 1072 1073void 1074oce_start(struct ifnet *ifp) 1075{ 1076 POCE_SOFTC sc = ifp->if_softc; 1077 struct mbuf *m; 1078 int rc = 0; 1079 int def_q = 0; /* Defualt tx queue is 0*/ 1080 1081 if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) != 1082 IFF_DRV_RUNNING) 1083 return; 1084 1085 do { 1086 IF_DEQUEUE(&sc->ifp->if_snd, m); 1087 if (m == NULL) 1088 break; 1089 1090 LOCK(&sc->wq[def_q]->tx_lock); 1091 rc = oce_tx(sc, &m, def_q); 1092 UNLOCK(&sc->wq[def_q]->tx_lock); 1093 if (rc) { 1094 if (m != NULL) { 1095 sc->wq[def_q]->tx_stats.tx_stops ++; 1096 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1097 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1098 m = NULL; 1099 } 1100 break; 1101 } 1102 if (m != NULL) 1103 ETHER_BPF_MTAP(ifp, m); 1104 1105 } while (TRUE); 1106 1107 return; 1108} 1109 1110 1111/* Handle the Completion Queue for transmit */ 1112uint16_t 1113oce_wq_handler(void *arg) 1114{ 1115 struct oce_wq *wq = (struct oce_wq *)arg; 1116 POCE_SOFTC sc = wq->parent; 1117 struct oce_cq *cq = wq->cq; 1118 struct oce_nic_tx_cqe *cqe; 1119 int num_cqes = 0; 1120 1121 LOCK(&wq->tx_lock); 1122 bus_dmamap_sync(cq->ring->dma.tag, 1123 cq->ring->dma.map, BUS_DMASYNC_POSTWRITE); 1124 cqe = RING_GET_CONSUMER_ITEM_VA(cq->ring, struct oce_nic_tx_cqe); 1125 while (cqe->u0.dw[3]) { 1126 DW_SWAP((uint32_t *) cqe, sizeof(oce_wq_cqe)); 1127 1128 wq->ring->cidx = cqe->u0.s.wqe_index + 1; 1129 if (wq->ring->cidx >= wq->ring->num_items) 1130 wq->ring->cidx -= wq->ring->num_items; 1131 1132 oce_tx_complete(wq, cqe->u0.s.wqe_index, cqe->u0.s.status); 1133 wq->tx_stats.tx_compl++; 1134 cqe->u0.dw[3] = 0; 1135 RING_GET(cq->ring, 1); 1136 bus_dmamap_sync(cq->ring->dma.tag, 1137 cq->ring->dma.map, BUS_DMASYNC_POSTWRITE); 1138 cqe = 1139 RING_GET_CONSUMER_ITEM_VA(cq->ring, struct oce_nic_tx_cqe); 1140 num_cqes++; 1141 } 1142 1143 if (num_cqes) 1144 oce_arm_cq(sc, cq->cq_id, num_cqes, FALSE); 1145 UNLOCK(&wq->tx_lock); 1146 1147 return 0; 1148} 1149 1150 1151static int 1152oce_multiq_transmit(struct ifnet *ifp, struct mbuf *m, struct oce_wq *wq) 1153{ 1154 POCE_SOFTC sc = ifp->if_softc; 1155 int status = 0, queue_index = 0; 1156 struct mbuf *next = NULL; 1157 struct buf_ring *br = NULL; 1158 1159 br = wq->br; 1160 queue_index = wq->queue_index; 1161 1162 if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) != 1163 IFF_DRV_RUNNING) { 1164 if (m != NULL) 1165 status = drbr_enqueue(ifp, br, m); 1166 return status; 1167 } 1168 1169 if (m != NULL) { 1170 if ((status = drbr_enqueue(ifp, br, m)) != 0) 1171 return status; 1172 } 1173 while ((next = drbr_peek(ifp, br)) != NULL) { 1174 if (oce_tx(sc, &next, queue_index)) { 1175 if (next == NULL) { 1176 drbr_advance(ifp, br); 1177 } else { 1178 drbr_putback(ifp, br, next); 1179 wq->tx_stats.tx_stops ++; 1180 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1181 status = drbr_enqueue(ifp, br, next); 1182 } 1183 break; 1184 } 1185 drbr_advance(ifp, br); 1186 ifp->if_obytes += next->m_pkthdr.len; 1187 if (next->m_flags & M_MCAST) 1188 ifp->if_omcasts++; 1189 ETHER_BPF_MTAP(ifp, next); 1190 } 1191 1192 return status; 1193} 1194 1195 1196 1197 1198/***************************************************************************** 1199 * Receive routines functions * 1200 *****************************************************************************/ 1201 1202static void 1203oce_rx(struct oce_rq *rq, uint32_t rqe_idx, struct oce_nic_rx_cqe *cqe) 1204{ 1205 uint32_t out; 1206 struct oce_packet_desc *pd; 1207 POCE_SOFTC sc = (POCE_SOFTC) rq->parent; 1208 int i, len, frag_len; 1209 struct mbuf *m = NULL, *tail = NULL; 1210 uint16_t vtag; 1211 1212 len = cqe->u0.s.pkt_size; 1213 if (!len) { 1214 /*partial DMA workaround for Lancer*/ 1215 oce_discard_rx_comp(rq, cqe); 1216 goto exit; 1217 } 1218 1219 /* Get vlan_tag value */ 1220 if(IS_BE(sc)) 1221 vtag = BSWAP_16(cqe->u0.s.vlan_tag); 1222 else 1223 vtag = cqe->u0.s.vlan_tag; 1224 1225 1226 for (i = 0; i < cqe->u0.s.num_fragments; i++) { 1227 1228 if (rq->packets_out == rq->packets_in) { 1229 device_printf(sc->dev, 1230 "RQ transmit descriptor missing\n"); 1231 } 1232 out = rq->packets_out + 1; 1233 if (out == OCE_RQ_PACKET_ARRAY_SIZE) 1234 out = 0; 1235 pd = &rq->pckts[rq->packets_out]; 1236 rq->packets_out = out; 1237 1238 bus_dmamap_sync(rq->tag, pd->map, BUS_DMASYNC_POSTWRITE); 1239 bus_dmamap_unload(rq->tag, pd->map); 1240 rq->pending--; 1241 1242 frag_len = (len > rq->cfg.frag_size) ? rq->cfg.frag_size : len; 1243 pd->mbuf->m_len = frag_len; 1244 1245 if (tail != NULL) { 1246 /* additional fragments */ 1247 pd->mbuf->m_flags &= ~M_PKTHDR; 1248 tail->m_next = pd->mbuf; 1249 tail = pd->mbuf; 1250 } else { 1251 /* first fragment, fill out much of the packet header */ 1252 pd->mbuf->m_pkthdr.len = len; 1253 pd->mbuf->m_pkthdr.csum_flags = 0; 1254 if (IF_CSUM_ENABLED(sc)) { 1255 if (cqe->u0.s.l4_cksum_pass) { 1256 pd->mbuf->m_pkthdr.csum_flags |= 1257 (CSUM_DATA_VALID | CSUM_PSEUDO_HDR); 1258 pd->mbuf->m_pkthdr.csum_data = 0xffff; 1259 } 1260 if (cqe->u0.s.ip_cksum_pass) { 1261 if (!cqe->u0.s.ip_ver) { /* IPV4 */ 1262 pd->mbuf->m_pkthdr.csum_flags |= 1263 (CSUM_IP_CHECKED|CSUM_IP_VALID); 1264 } 1265 } 1266 } 1267 m = tail = pd->mbuf; 1268 } 1269 pd->mbuf = NULL; 1270 len -= frag_len; 1271 } 1272 1273 if (m) { 1274 if (!oce_cqe_portid_valid(sc, cqe)) { 1275 m_freem(m); 1276 goto exit; 1277 } 1278 1279 m->m_pkthdr.rcvif = sc->ifp; 1280#if __FreeBSD_version >= 800000 1281 m->m_pkthdr.flowid = rq->queue_index; 1282 m->m_flags |= M_FLOWID; 1283#endif 1284 /* This deternies if vlan tag is Valid */ 1285 if (oce_cqe_vtp_valid(sc, cqe)) { 1286 if (sc->function_mode & FNM_FLEX10_MODE) { 1287 /* FLEX10. If QnQ is not set, neglect VLAN */ 1288 if (cqe->u0.s.qnq) { 1289 m->m_pkthdr.ether_vtag = vtag; 1290 m->m_flags |= M_VLANTAG; 1291 } 1292 } else if (sc->pvid != (vtag & VLAN_VID_MASK)) { 1293 /* In UMC mode generally pvid will be striped by 1294 hw. But in some cases we have seen it comes 1295 with pvid. So if pvid == vlan, neglect vlan. 1296 */ 1297 m->m_pkthdr.ether_vtag = vtag; 1298 m->m_flags |= M_VLANTAG; 1299 } 1300 } 1301 1302 sc->ifp->if_ipackets++; 1303#if defined(INET6) || defined(INET) 1304 /* Try to queue to LRO */ 1305 if (IF_LRO_ENABLED(sc) && 1306 !(m->m_flags & M_VLANTAG) && 1307 (cqe->u0.s.ip_cksum_pass) && 1308 (cqe->u0.s.l4_cksum_pass) && 1309 (!cqe->u0.s.ip_ver) && 1310 (rq->lro.lro_cnt != 0)) { 1311 1312 if (tcp_lro_rx(&rq->lro, m, 0) == 0) { 1313 rq->lro_pkts_queued ++; 1314 goto post_done; 1315 } 1316 /* If LRO posting fails then try to post to STACK */ 1317 } 1318#endif 1319 1320 (*sc->ifp->if_input) (sc->ifp, m); 1321#if defined(INET6) || defined(INET) 1322post_done: 1323#endif 1324 /* Update rx stats per queue */ 1325 rq->rx_stats.rx_pkts++; 1326 rq->rx_stats.rx_bytes += cqe->u0.s.pkt_size; 1327 rq->rx_stats.rx_frags += cqe->u0.s.num_fragments; 1328 if (cqe->u0.s.pkt_type == OCE_MULTICAST_PACKET) 1329 rq->rx_stats.rx_mcast_pkts++; 1330 if (cqe->u0.s.pkt_type == OCE_UNICAST_PACKET) 1331 rq->rx_stats.rx_ucast_pkts++; 1332 } 1333exit: 1334 return; 1335} 1336 1337 1338static void 1339oce_discard_rx_comp(struct oce_rq *rq, struct oce_nic_rx_cqe *cqe) 1340{ 1341 uint32_t out, i = 0; 1342 struct oce_packet_desc *pd; 1343 POCE_SOFTC sc = (POCE_SOFTC) rq->parent; 1344 int num_frags = cqe->u0.s.num_fragments; 1345 1346 if (IS_XE201(sc) && cqe->u0.s.error) { 1347 /* Lancer A0 workaround 1348 * num_frags will be 1 more than actual in case of error 1349 */ 1350 if (num_frags) 1351 num_frags -= 1; 1352 } 1353 for (i = 0; i < num_frags; i++) { 1354 if (rq->packets_out == rq->packets_in) { 1355 device_printf(sc->dev, 1356 "RQ transmit descriptor missing\n"); 1357 } 1358 out = rq->packets_out + 1; 1359 if (out == OCE_RQ_PACKET_ARRAY_SIZE) 1360 out = 0; 1361 pd = &rq->pckts[rq->packets_out]; 1362 rq->packets_out = out; 1363 1364 bus_dmamap_sync(rq->tag, pd->map, BUS_DMASYNC_POSTWRITE); 1365 bus_dmamap_unload(rq->tag, pd->map); 1366 rq->pending--; 1367 m_freem(pd->mbuf); 1368 } 1369 1370} 1371 1372 1373static int 1374oce_cqe_vtp_valid(POCE_SOFTC sc, struct oce_nic_rx_cqe *cqe) 1375{ 1376 struct oce_nic_rx_cqe_v1 *cqe_v1; 1377 int vtp = 0; 1378 1379 if (sc->be3_native) { 1380 cqe_v1 = (struct oce_nic_rx_cqe_v1 *)cqe; 1381 vtp = cqe_v1->u0.s.vlan_tag_present; 1382 } else 1383 vtp = cqe->u0.s.vlan_tag_present; 1384 1385 return vtp; 1386 1387} 1388 1389 1390static int 1391oce_cqe_portid_valid(POCE_SOFTC sc, struct oce_nic_rx_cqe *cqe) 1392{ 1393 struct oce_nic_rx_cqe_v1 *cqe_v1; 1394 int port_id = 0; 1395 1396 if (sc->be3_native && IS_BE(sc)) { 1397 cqe_v1 = (struct oce_nic_rx_cqe_v1 *)cqe; 1398 port_id = cqe_v1->u0.s.port; 1399 if (sc->port_id != port_id) 1400 return 0; 1401 } else 1402 ;/* For BE3 legacy and Lancer this is dummy */ 1403 1404 return 1; 1405 1406} 1407 1408#if defined(INET6) || defined(INET) 1409static void 1410oce_rx_flush_lro(struct oce_rq *rq) 1411{ 1412 struct lro_ctrl *lro = &rq->lro; 1413 struct lro_entry *queued; 1414 POCE_SOFTC sc = (POCE_SOFTC) rq->parent; 1415 1416 if (!IF_LRO_ENABLED(sc)) 1417 return; 1418 1419 while ((queued = SLIST_FIRST(&lro->lro_active)) != NULL) { 1420 SLIST_REMOVE_HEAD(&lro->lro_active, next); 1421 tcp_lro_flush(lro, queued); 1422 } 1423 rq->lro_pkts_queued = 0; 1424 1425 return; 1426} 1427 1428 1429static int 1430oce_init_lro(POCE_SOFTC sc) 1431{ 1432 struct lro_ctrl *lro = NULL; 1433 int i = 0, rc = 0; 1434 1435 for (i = 0; i < sc->nrqs; i++) { 1436 lro = &sc->rq[i]->lro; 1437 rc = tcp_lro_init(lro); 1438 if (rc != 0) { 1439 device_printf(sc->dev, "LRO init failed\n"); 1440 return rc; 1441 } 1442 lro->ifp = sc->ifp; 1443 } 1444 1445 return rc; 1446} 1447 1448 1449void 1450oce_free_lro(POCE_SOFTC sc) 1451{ 1452 struct lro_ctrl *lro = NULL; 1453 int i = 0; 1454 1455 for (i = 0; i < sc->nrqs; i++) { 1456 lro = &sc->rq[i]->lro; 1457 if (lro) 1458 tcp_lro_free(lro); 1459 } 1460} 1461#endif /* INET6 || INET */ 1462 1463int 1464oce_alloc_rx_bufs(struct oce_rq *rq, int count) 1465{ 1466 POCE_SOFTC sc = (POCE_SOFTC) rq->parent; 1467 int i, in, rc; 1468 struct oce_packet_desc *pd; 1469 bus_dma_segment_t segs[6]; 1470 int nsegs, added = 0; 1471 struct oce_nic_rqe *rqe; 1472 pd_rxulp_db_t rxdb_reg; 1473 1474 1475 for (i = 0; i < count; i++) { 1476 in = rq->packets_in + 1; 1477 if (in == OCE_RQ_PACKET_ARRAY_SIZE) 1478 in = 0; 1479 if (in == rq->packets_out) 1480 break; /* no more room */ 1481 1482 pd = &rq->pckts[rq->packets_in]; 1483 pd->mbuf = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1484 if (pd->mbuf == NULL) 1485 break; 1486 1487 pd->mbuf->m_len = pd->mbuf->m_pkthdr.len = MCLBYTES; 1488 rc = bus_dmamap_load_mbuf_sg(rq->tag, 1489 pd->map, 1490 pd->mbuf, 1491 segs, &nsegs, BUS_DMA_NOWAIT); 1492 if (rc) { 1493 m_free(pd->mbuf); 1494 break; 1495 } 1496 1497 if (nsegs != 1) { 1498 i--; 1499 continue; 1500 } 1501 1502 rq->packets_in = in; 1503 bus_dmamap_sync(rq->tag, pd->map, BUS_DMASYNC_PREREAD); 1504 1505 rqe = RING_GET_PRODUCER_ITEM_VA(rq->ring, struct oce_nic_rqe); 1506 rqe->u0.s.frag_pa_hi = ADDR_HI(segs[0].ds_addr); 1507 rqe->u0.s.frag_pa_lo = ADDR_LO(segs[0].ds_addr); 1508 DW_SWAP(u32ptr(rqe), sizeof(struct oce_nic_rqe)); 1509 RING_PUT(rq->ring, 1); 1510 added++; 1511 rq->pending++; 1512 } 1513 if (added != 0) { 1514 for (i = added / OCE_MAX_RQ_POSTS; i > 0; i--) { 1515 DELAY(1); 1516 rxdb_reg.bits.num_posted = OCE_MAX_RQ_POSTS; 1517 rxdb_reg.bits.qid = rq->rq_id; 1518 OCE_WRITE_REG32(sc, db, PD_RXULP_DB, rxdb_reg.dw0); 1519 added -= OCE_MAX_RQ_POSTS; 1520 } 1521 if (added > 0) { 1522 DELAY(1); 1523 rxdb_reg.bits.qid = rq->rq_id; 1524 rxdb_reg.bits.num_posted = added; 1525 OCE_WRITE_REG32(sc, db, PD_RXULP_DB, rxdb_reg.dw0); 1526 } 1527 } 1528 1529 return 0; 1530} 1531 1532 1533/* Handle the Completion Queue for receive */ 1534uint16_t 1535oce_rq_handler(void *arg) 1536{ 1537 struct oce_rq *rq = (struct oce_rq *)arg; 1538 struct oce_cq *cq = rq->cq; 1539 POCE_SOFTC sc = rq->parent; 1540 struct oce_nic_rx_cqe *cqe; 1541 int num_cqes = 0, rq_buffers_used = 0; 1542 1543 1544 LOCK(&rq->rx_lock); 1545 bus_dmamap_sync(cq->ring->dma.tag, 1546 cq->ring->dma.map, BUS_DMASYNC_POSTWRITE); 1547 cqe = RING_GET_CONSUMER_ITEM_VA(cq->ring, struct oce_nic_rx_cqe); 1548 while (cqe->u0.dw[2]) { 1549 DW_SWAP((uint32_t *) cqe, sizeof(oce_rq_cqe)); 1550 1551 RING_GET(rq->ring, 1); 1552 if (cqe->u0.s.error == 0) { 1553 oce_rx(rq, cqe->u0.s.frag_index, cqe); 1554 } else { 1555 rq->rx_stats.rxcp_err++; 1556 sc->ifp->if_ierrors++; 1557 if (IS_XE201(sc)) 1558 /* Lancer A0 no buffer workaround */ 1559 oce_discard_rx_comp(rq, cqe); 1560 else 1561 /* Post L3/L4 errors to stack.*/ 1562 oce_rx(rq, cqe->u0.s.frag_index, cqe); 1563 1564 } 1565 rq->rx_stats.rx_compl++; 1566 cqe->u0.dw[2] = 0; 1567 1568#if defined(INET6) || defined(INET) 1569 if (IF_LRO_ENABLED(sc) && rq->lro_pkts_queued >= 16) { 1570 oce_rx_flush_lro(rq); 1571 } 1572#endif 1573 1574 RING_GET(cq->ring, 1); 1575 bus_dmamap_sync(cq->ring->dma.tag, 1576 cq->ring->dma.map, BUS_DMASYNC_POSTWRITE); 1577 cqe = 1578 RING_GET_CONSUMER_ITEM_VA(cq->ring, struct oce_nic_rx_cqe); 1579 num_cqes++; 1580 if (num_cqes >= (IS_XE201(sc) ? 8 : oce_max_rsp_handled)) 1581 break; 1582 } 1583 1584#if defined(INET6) || defined(INET) 1585 if (IF_LRO_ENABLED(sc)) 1586 oce_rx_flush_lro(rq); 1587#endif 1588 1589 if (num_cqes) { 1590 oce_arm_cq(sc, cq->cq_id, num_cqes, FALSE); 1591 rq_buffers_used = OCE_RQ_PACKET_ARRAY_SIZE - rq->pending; 1592 if (rq_buffers_used > 1) 1593 oce_alloc_rx_bufs(rq, (rq_buffers_used - 1)); 1594 } 1595 1596 UNLOCK(&rq->rx_lock); 1597 1598 return 0; 1599 1600} 1601 1602 1603 1604 1605/***************************************************************************** 1606 * Helper function prototypes in this file * 1607 *****************************************************************************/ 1608 1609static int 1610oce_attach_ifp(POCE_SOFTC sc) 1611{ 1612 1613 sc->ifp = if_alloc(IFT_ETHER); 1614 if (!sc->ifp) 1615 return ENOMEM; 1616 1617 ifmedia_init(&sc->media, IFM_IMASK, oce_media_change, oce_media_status); 1618 ifmedia_add(&sc->media, IFM_ETHER | IFM_AUTO, 0, NULL); 1619 ifmedia_set(&sc->media, IFM_ETHER | IFM_AUTO); 1620 1621 sc->ifp->if_flags = IFF_BROADCAST | IFF_MULTICAST; 1622 sc->ifp->if_ioctl = oce_ioctl; 1623 sc->ifp->if_start = oce_start; 1624 sc->ifp->if_init = oce_init; 1625 sc->ifp->if_mtu = ETHERMTU; 1626 sc->ifp->if_softc = sc; 1627#if __FreeBSD_version >= 800000 1628 sc->ifp->if_transmit = oce_multiq_start; 1629 sc->ifp->if_qflush = oce_multiq_flush; 1630#endif 1631 1632 if_initname(sc->ifp, 1633 device_get_name(sc->dev), device_get_unit(sc->dev)); 1634 1635 sc->ifp->if_snd.ifq_drv_maxlen = OCE_MAX_TX_DESC - 1; 1636 IFQ_SET_MAXLEN(&sc->ifp->if_snd, sc->ifp->if_snd.ifq_drv_maxlen); 1637 IFQ_SET_READY(&sc->ifp->if_snd); 1638 1639 sc->ifp->if_hwassist = OCE_IF_HWASSIST; 1640 sc->ifp->if_hwassist |= CSUM_TSO; 1641 sc->ifp->if_hwassist |= (CSUM_IP | CSUM_TCP | CSUM_UDP); 1642 1643 sc->ifp->if_capabilities = OCE_IF_CAPABILITIES; 1644 sc->ifp->if_capabilities |= IFCAP_HWCSUM; 1645 sc->ifp->if_capabilities |= IFCAP_VLAN_HWFILTER; 1646 1647#if defined(INET6) || defined(INET) 1648 sc->ifp->if_capabilities |= IFCAP_TSO; 1649 sc->ifp->if_capabilities |= IFCAP_LRO; 1650 sc->ifp->if_capabilities |= IFCAP_VLAN_HWTSO; 1651#endif 1652 1653 sc->ifp->if_capenable = sc->ifp->if_capabilities; 1654 if_initbaudrate(sc->ifp, IF_Gbps(10)); 1655 1656 ether_ifattach(sc->ifp, sc->macaddr.mac_addr); 1657 1658 return 0; 1659} 1660 1661 1662static void 1663oce_add_vlan(void *arg, struct ifnet *ifp, uint16_t vtag) 1664{ 1665 POCE_SOFTC sc = ifp->if_softc; 1666 1667 if (ifp->if_softc != arg) 1668 return; 1669 if ((vtag == 0) || (vtag > 4095)) 1670 return; 1671 1672 sc->vlan_tag[vtag] = 1; 1673 sc->vlans_added++; 1674 oce_vid_config(sc); 1675} 1676 1677 1678static void 1679oce_del_vlan(void *arg, struct ifnet *ifp, uint16_t vtag) 1680{ 1681 POCE_SOFTC sc = ifp->if_softc; 1682 1683 if (ifp->if_softc != arg) 1684 return; 1685 if ((vtag == 0) || (vtag > 4095)) 1686 return; 1687 1688 sc->vlan_tag[vtag] = 0; 1689 sc->vlans_added--; 1690 oce_vid_config(sc); 1691} 1692 1693 1694/* 1695 * A max of 64 vlans can be configured in BE. If the user configures 1696 * more, place the card in vlan promiscuous mode. 1697 */ 1698static int 1699oce_vid_config(POCE_SOFTC sc) 1700{ 1701 struct normal_vlan vtags[MAX_VLANFILTER_SIZE]; 1702 uint16_t ntags = 0, i; 1703 int status = 0; 1704 1705 if ((sc->vlans_added <= MAX_VLANFILTER_SIZE) && 1706 (sc->ifp->if_capenable & IFCAP_VLAN_HWFILTER)) { 1707 for (i = 0; i < MAX_VLANS; i++) { 1708 if (sc->vlan_tag[i]) { 1709 vtags[ntags].vtag = i; 1710 ntags++; 1711 } 1712 } 1713 if (ntags) 1714 status = oce_config_vlan(sc, (uint8_t) sc->if_id, 1715 vtags, ntags, 1, 0); 1716 } else 1717 status = oce_config_vlan(sc, (uint8_t) sc->if_id, 1718 NULL, 0, 1, 1); 1719 return status; 1720} 1721 1722 1723static void 1724oce_mac_addr_set(POCE_SOFTC sc) 1725{ 1726 uint32_t old_pmac_id = sc->pmac_id; 1727 int status = 0; 1728 1729 1730 status = bcmp((IF_LLADDR(sc->ifp)), sc->macaddr.mac_addr, 1731 sc->macaddr.size_of_struct); 1732 if (!status) 1733 return; 1734 1735 status = oce_mbox_macaddr_add(sc, (uint8_t *)(IF_LLADDR(sc->ifp)), 1736 sc->if_id, &sc->pmac_id); 1737 if (!status) { 1738 status = oce_mbox_macaddr_del(sc, sc->if_id, old_pmac_id); 1739 bcopy((IF_LLADDR(sc->ifp)), sc->macaddr.mac_addr, 1740 sc->macaddr.size_of_struct); 1741 } 1742 if (status) 1743 device_printf(sc->dev, "Failed update macaddress\n"); 1744 1745} 1746 1747 1748static int 1749oce_handle_passthrough(struct ifnet *ifp, caddr_t data) 1750{ 1751 POCE_SOFTC sc = ifp->if_softc; 1752 struct ifreq *ifr = (struct ifreq *)data; 1753 int rc = ENXIO; 1754 char cookie[32] = {0}; 1755 void *priv_data = (void *)ifr->ifr_data; 1756 void *ioctl_ptr; 1757 uint32_t req_size; 1758 struct mbx_hdr req; 1759 OCE_DMA_MEM dma_mem; 1760 1761 1762 if (copyin(priv_data, cookie, strlen(IOCTL_COOKIE))) 1763 return EFAULT; 1764 1765 if (memcmp(cookie, IOCTL_COOKIE, strlen(IOCTL_COOKIE))) 1766 return EINVAL; 1767 1768 ioctl_ptr = (char *)priv_data + strlen(IOCTL_COOKIE); 1769 if (copyin(ioctl_ptr, &req, sizeof(struct mbx_hdr))) 1770 return EFAULT; 1771 1772 req_size = le32toh(req.u0.req.request_length); 1773 if (req_size > 65536) 1774 return EINVAL; 1775 1776 req_size += sizeof(struct mbx_hdr); 1777 rc = oce_dma_alloc(sc, req_size, &dma_mem, 0); 1778 if (rc) 1779 return ENOMEM; 1780 1781 if (copyin(ioctl_ptr, OCE_DMAPTR(&dma_mem,char), req_size)) { 1782 rc = EFAULT; 1783 goto dma_free; 1784 } 1785 1786 rc = oce_pass_through_mbox(sc, &dma_mem, req_size); 1787 if (rc) { 1788 rc = EIO; 1789 goto dma_free; 1790 } 1791 1792 if (copyout(OCE_DMAPTR(&dma_mem,char), ioctl_ptr, req_size)) 1793 rc = EFAULT; 1794 1795dma_free: 1796 oce_dma_free(sc, &dma_mem); 1797 return rc; 1798 1799} 1800 1801 1802static void 1803oce_local_timer(void *arg) 1804{ 1805 POCE_SOFTC sc = arg; 1806 int i = 0; 1807 1808 oce_refresh_nic_stats(sc); 1809 oce_refresh_queue_stats(sc); 1810 oce_mac_addr_set(sc); 1811 1812 /* TX Watch Dog*/ 1813 for (i = 0; i < sc->nwqs; i++) 1814 oce_tx_restart(sc, sc->wq[i]); 1815 1816 callout_reset(&sc->timer, hz, oce_local_timer, sc); 1817} 1818 1819 1820/* NOTE : This should only be called holding 1821 * DEVICE_LOCK. 1822*/ 1823static void 1824oce_if_deactivate(POCE_SOFTC sc) 1825{ 1826 int i, mtime = 0; 1827 int wait_req = 0; 1828 struct oce_rq *rq; 1829 struct oce_wq *wq; 1830 struct oce_eq *eq; 1831 1832 sc->ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 1833 1834 /*Wait for max of 400ms for TX completions to be done */ 1835 while (mtime < 400) { 1836 wait_req = 0; 1837 for_all_wq_queues(sc, wq, i) { 1838 if (wq->ring->num_used) { 1839 wait_req = 1; 1840 DELAY(1); 1841 break; 1842 } 1843 } 1844 mtime += 1; 1845 if (!wait_req) 1846 break; 1847 } 1848 1849 /* Stop intrs and finish any bottom halves pending */ 1850 oce_hw_intr_disable(sc); 1851 1852 /* Since taskqueue_drain takes a Giant Lock, We should not acquire 1853 any other lock. So unlock device lock and require after 1854 completing taskqueue_drain. 1855 */ 1856 UNLOCK(&sc->dev_lock); 1857 for (i = 0; i < sc->intr_count; i++) { 1858 if (sc->intrs[i].tq != NULL) { 1859 taskqueue_drain(sc->intrs[i].tq, &sc->intrs[i].task); 1860 } 1861 } 1862 LOCK(&sc->dev_lock); 1863 1864 /* Delete RX queue in card with flush param */ 1865 oce_stop_rx(sc); 1866 1867 /* Invalidate any pending cq and eq entries*/ 1868 for_all_evnt_queues(sc, eq, i) 1869 oce_drain_eq(eq); 1870 for_all_rq_queues(sc, rq, i) 1871 oce_drain_rq_cq(rq); 1872 for_all_wq_queues(sc, wq, i) 1873 oce_drain_wq_cq(wq); 1874 1875 /* But still we need to get MCC aync events. 1876 So enable intrs and also arm first EQ 1877 */ 1878 oce_hw_intr_enable(sc); 1879 oce_arm_eq(sc, sc->eq[0]->eq_id, 0, TRUE, FALSE); 1880 1881 DELAY(10); 1882} 1883 1884 1885static void 1886oce_if_activate(POCE_SOFTC sc) 1887{ 1888 struct oce_eq *eq; 1889 struct oce_rq *rq; 1890 struct oce_wq *wq; 1891 int i, rc = 0; 1892 1893 sc->ifp->if_drv_flags |= IFF_DRV_RUNNING; 1894 1895 oce_hw_intr_disable(sc); 1896 1897 oce_start_rx(sc); 1898 1899 for_all_rq_queues(sc, rq, i) { 1900 rc = oce_start_rq(rq); 1901 if (rc) 1902 device_printf(sc->dev, "Unable to start RX\n"); 1903 } 1904 1905 for_all_wq_queues(sc, wq, i) { 1906 rc = oce_start_wq(wq); 1907 if (rc) 1908 device_printf(sc->dev, "Unable to start TX\n"); 1909 } 1910 1911 1912 for_all_evnt_queues(sc, eq, i) 1913 oce_arm_eq(sc, eq->eq_id, 0, TRUE, FALSE); 1914 1915 oce_hw_intr_enable(sc); 1916 1917} 1918 1919static void 1920process_link_state(POCE_SOFTC sc, struct oce_async_cqe_link_state *acqe) 1921{ 1922 /* Update Link status */ 1923 if ((acqe->u0.s.link_status & ~ASYNC_EVENT_LOGICAL) == 1924 ASYNC_EVENT_LINK_UP) { 1925 sc->link_status = ASYNC_EVENT_LINK_UP; 1926 if_link_state_change(sc->ifp, LINK_STATE_UP); 1927 } else { 1928 sc->link_status = ASYNC_EVENT_LINK_DOWN; 1929 if_link_state_change(sc->ifp, LINK_STATE_DOWN); 1930 } 1931 1932 /* Update speed */ 1933 sc->link_speed = acqe->u0.s.speed; 1934 sc->qos_link_speed = (uint32_t) acqe->u0.s.qos_link_speed * 10; 1935 1936} 1937 1938 1939/* Handle the Completion Queue for the Mailbox/Async notifications */ 1940uint16_t 1941oce_mq_handler(void *arg) 1942{ 1943 struct oce_mq *mq = (struct oce_mq *)arg; 1944 POCE_SOFTC sc = mq->parent; 1945 struct oce_cq *cq = mq->cq; 1946 int num_cqes = 0, evt_type = 0, optype = 0; 1947 struct oce_mq_cqe *cqe; 1948 struct oce_async_cqe_link_state *acqe; 1949 struct oce_async_event_grp5_pvid_state *gcqe; 1950 1951 1952 bus_dmamap_sync(cq->ring->dma.tag, 1953 cq->ring->dma.map, BUS_DMASYNC_POSTWRITE); 1954 cqe = RING_GET_CONSUMER_ITEM_VA(cq->ring, struct oce_mq_cqe); 1955 1956 while (cqe->u0.dw[3]) { 1957 DW_SWAP((uint32_t *) cqe, sizeof(oce_mq_cqe)); 1958 if (cqe->u0.s.async_event) { 1959 evt_type = cqe->u0.s.event_type; 1960 optype = cqe->u0.s.async_type; 1961 if (evt_type == ASYNC_EVENT_CODE_LINK_STATE) { 1962 /* Link status evt */ 1963 acqe = (struct oce_async_cqe_link_state *)cqe; 1964 process_link_state(sc, acqe); 1965 } else if ((evt_type == ASYNC_EVENT_GRP5) && 1966 (optype == ASYNC_EVENT_PVID_STATE)) { 1967 /* GRP5 PVID */ 1968 gcqe = 1969 (struct oce_async_event_grp5_pvid_state *)cqe; 1970 if (gcqe->enabled) 1971 sc->pvid = gcqe->tag & VLAN_VID_MASK; 1972 else 1973 sc->pvid = 0; 1974 1975 } 1976 } 1977 cqe->u0.dw[3] = 0; 1978 RING_GET(cq->ring, 1); 1979 bus_dmamap_sync(cq->ring->dma.tag, 1980 cq->ring->dma.map, BUS_DMASYNC_POSTWRITE); 1981 cqe = RING_GET_CONSUMER_ITEM_VA(cq->ring, struct oce_mq_cqe); 1982 num_cqes++; 1983 } 1984 1985 if (num_cqes) 1986 oce_arm_cq(sc, cq->cq_id, num_cqes, FALSE); 1987 1988 return 0; 1989} 1990 1991 1992static void 1993setup_max_queues_want(POCE_SOFTC sc) 1994{ 1995 int max_rss = 0; 1996 1997 /* Check if it is FLEX machine. Is so dont use RSS */ 1998 if ((sc->function_mode & FNM_FLEX10_MODE) || 1999 (sc->function_mode & FNM_UMC_MODE) || 2000 (sc->function_mode & FNM_VNIC_MODE) || 2001 (!sc->rss_enable) || 2002 (sc->flags & OCE_FLAGS_BE2)) { 2003 sc->nrqs = 1; 2004 sc->nwqs = 1; 2005 sc->rss_enable = 0; 2006 } else { 2007 /* For multiq, our deisgn is to have TX rings equal to 2008 RSS rings. So that we can pair up one RSS ring and TX 2009 to a single intr, which improves CPU cache efficiency. 2010 */ 2011 if (IS_BE(sc) && (!sc->be3_native)) 2012 max_rss = OCE_LEGACY_MODE_RSS; 2013 else 2014 max_rss = OCE_MAX_RSS; 2015 2016 sc->nrqs = MIN(OCE_NCPUS, max_rss) + 1; /* 1 for def RX */ 2017 sc->nwqs = MIN(OCE_NCPUS, max_rss); 2018 } 2019 2020} 2021 2022 2023static void 2024update_queues_got(POCE_SOFTC sc) 2025{ 2026 if (sc->rss_enable) { 2027 sc->nrqs = sc->intr_count + 1; 2028 sc->nwqs = sc->intr_count; 2029 } else { 2030 sc->nrqs = 1; 2031 sc->nwqs = 1; 2032 } 2033} 2034 2035