Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/dev/qlxge/qls_os.c
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1 /* 2 * Copyright (c) 2013-2014 Qlogic Corporation 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 16 * and ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 /* 29 * File: qls_os.c 30 * Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656. 31 */ 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 37 #include "qls_os.h" 38 #include "qls_hw.h" 39 #include "qls_def.h" 40 #include "qls_inline.h" 41 #include "qls_ver.h" 42 #include "qls_glbl.h" 43 #include "qls_dbg.h" 44 #include <sys/smp.h> 45 46 /* 47 * Some PCI Configuration Space Related Defines 48 */ 49 50 #ifndef PCI_VENDOR_QLOGIC 51 #define PCI_VENDOR_QLOGIC 0x1077 52 #endif 53 54 #ifndef PCI_DEVICE_QLOGIC_8000 55 #define PCI_DEVICE_QLOGIC_8000 0x8000 56 #endif 57 58 #define PCI_QLOGIC_DEV8000 \ 59 ((PCI_DEVICE_QLOGIC_8000 << 16) | PCI_VENDOR_QLOGIC) 60 61 /* 62 * static functions 63 */ 64 static int qls_alloc_parent_dma_tag(qla_host_t *ha); 65 static void qls_free_parent_dma_tag(qla_host_t *ha); 66 67 static void qls_flush_xmt_bufs(qla_host_t *ha); 68 69 static int qls_alloc_rcv_bufs(qla_host_t *ha); 70 static void qls_free_rcv_bufs(qla_host_t *ha); 71 72 static void qls_init_ifnet(device_t dev, qla_host_t *ha); 73 static void qls_release(qla_host_t *ha); 74 static void qls_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, 75 int error); 76 static void qls_stop(qla_host_t *ha); 77 static int qls_send(qla_host_t *ha, struct mbuf **m_headp); 78 static void qls_tx_done(void *context, int pending); 79 80 static int qls_config_lro(qla_host_t *ha); 81 static void qls_free_lro(qla_host_t *ha); 82 83 static void qls_error_recovery(void *context, int pending); 84 85 /* 86 * Hooks to the Operating Systems 87 */ 88 static int qls_pci_probe (device_t); 89 static int qls_pci_attach (device_t); 90 static int qls_pci_detach (device_t); 91 92 static void qls_start(struct ifnet *ifp); 93 static void qls_init(void *arg); 94 static int qls_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data); 95 static int qls_media_change(struct ifnet *ifp); 96 static void qls_media_status(struct ifnet *ifp, struct ifmediareq *ifmr); 97 98 static device_method_t qla_pci_methods[] = { 99 /* Device interface */ 100 DEVMETHOD(device_probe, qls_pci_probe), 101 DEVMETHOD(device_attach, qls_pci_attach), 102 DEVMETHOD(device_detach, qls_pci_detach), 103 { 0, 0 } 104 }; 105 106 static driver_t qla_pci_driver = { 107 "ql", qla_pci_methods, sizeof (qla_host_t), 108 }; 109 110 static devclass_t qla8000_devclass; 111 112 DRIVER_MODULE(qla8000, pci, qla_pci_driver, qla8000_devclass, 0, 0); 113 114 MODULE_DEPEND(qla8000, pci, 1, 1, 1); 115 MODULE_DEPEND(qla8000, ether, 1, 1, 1); 116 117 MALLOC_DEFINE(M_QLA8000BUF, "qla8000buf", "Buffers for qla8000 driver"); 118 119 static char dev_str[64]; 120 static char ver_str[64]; 121 122 /* 123 * Name: qls_pci_probe 124 * Function: Validate the PCI device to be a QLA80XX device 125 */ 126 static int 127 qls_pci_probe(device_t dev) 128 { 129 switch ((pci_get_device(dev) << 16) | (pci_get_vendor(dev))) { 130 case PCI_QLOGIC_DEV8000: 131 snprintf(dev_str, sizeof(dev_str), "%s v%d.%d.%d", 132 "Qlogic ISP 8000 PCI CNA Adapter-Ethernet Function", 133 QLA_VERSION_MAJOR, QLA_VERSION_MINOR, 134 QLA_VERSION_BUILD); 135 snprintf(ver_str, sizeof(ver_str), "v%d.%d.%d", 136 QLA_VERSION_MAJOR, QLA_VERSION_MINOR, 137 QLA_VERSION_BUILD); 138 device_set_desc(dev, dev_str); 139 break; 140 default: 141 return (ENXIO); 142 } 143 144 if (bootverbose) 145 printf("%s: %s\n ", __func__, dev_str); 146 147 return (BUS_PROBE_DEFAULT); 148 } 149 150 static int 151 qls_sysctl_get_drvr_stats(SYSCTL_HANDLER_ARGS) 152 { 153 int err = 0, ret; 154 qla_host_t *ha; 155 uint32_t i; 156 157 err = sysctl_handle_int(oidp, &ret, 0, req); 158 159 if (err || !req->newptr) 160 return (err); 161 162 if (ret == 1) { 163 164 ha = (qla_host_t *)arg1; 165 166 for (i = 0; i < ha->num_tx_rings; i++) { 167 168 device_printf(ha->pci_dev, 169 "%s: tx_ring[%d].tx_frames= %p\n", 170 __func__, i, 171 (void *)ha->tx_ring[i].tx_frames); 172 173 device_printf(ha->pci_dev, 174 "%s: tx_ring[%d].tx_tso_frames= %p\n", 175 __func__, i, 176 (void *)ha->tx_ring[i].tx_tso_frames); 177 178 device_printf(ha->pci_dev, 179 "%s: tx_ring[%d].tx_vlan_frames= %p\n", 180 __func__, i, 181 (void *)ha->tx_ring[i].tx_vlan_frames); 182 183 device_printf(ha->pci_dev, 184 "%s: tx_ring[%d].txr_free= 0x%08x\n", 185 __func__, i, 186 ha->tx_ring[i].txr_free); 187 188 device_printf(ha->pci_dev, 189 "%s: tx_ring[%d].txr_next= 0x%08x\n", 190 __func__, i, 191 ha->tx_ring[i].txr_next); 192 193 device_printf(ha->pci_dev, 194 "%s: tx_ring[%d].txr_done= 0x%08x\n", 195 __func__, i, 196 ha->tx_ring[i].txr_done); 197 198 device_printf(ha->pci_dev, 199 "%s: tx_ring[%d].txr_cons_idx= 0x%08x\n", 200 __func__, i, 201 *(ha->tx_ring[i].txr_cons_vaddr)); 202 } 203 204 for (i = 0; i < ha->num_rx_rings; i++) { 205 206 device_printf(ha->pci_dev, 207 "%s: rx_ring[%d].rx_int= %p\n", 208 __func__, i, 209 (void *)ha->rx_ring[i].rx_int); 210 211 device_printf(ha->pci_dev, 212 "%s: rx_ring[%d].rss_int= %p\n", 213 __func__, i, 214 (void *)ha->rx_ring[i].rss_int); 215 216 device_printf(ha->pci_dev, 217 "%s: rx_ring[%d].lbq_next= 0x%08x\n", 218 __func__, i, 219 ha->rx_ring[i].lbq_next); 220 221 device_printf(ha->pci_dev, 222 "%s: rx_ring[%d].lbq_free= 0x%08x\n", 223 __func__, i, 224 ha->rx_ring[i].lbq_free); 225 226 device_printf(ha->pci_dev, 227 "%s: rx_ring[%d].lbq_in= 0x%08x\n", 228 __func__, i, 229 ha->rx_ring[i].lbq_in); 230 231 device_printf(ha->pci_dev, 232 "%s: rx_ring[%d].sbq_next= 0x%08x\n", 233 __func__, i, 234 ha->rx_ring[i].sbq_next); 235 236 device_printf(ha->pci_dev, 237 "%s: rx_ring[%d].sbq_free= 0x%08x\n", 238 __func__, i, 239 ha->rx_ring[i].sbq_free); 240 241 device_printf(ha->pci_dev, 242 "%s: rx_ring[%d].sbq_in= 0x%08x\n", 243 __func__, i, 244 ha->rx_ring[i].sbq_in); 245 } 246 247 device_printf(ha->pci_dev, "%s: err_m_getcl = 0x%08x\n", 248 __func__, ha->err_m_getcl); 249 device_printf(ha->pci_dev, "%s: err_m_getjcl = 0x%08x\n", 250 __func__, ha->err_m_getjcl); 251 device_printf(ha->pci_dev, 252 "%s: err_tx_dmamap_create = 0x%08x\n", 253 __func__, ha->err_tx_dmamap_create); 254 device_printf(ha->pci_dev, 255 "%s: err_tx_dmamap_load = 0x%08x\n", 256 __func__, ha->err_tx_dmamap_load); 257 device_printf(ha->pci_dev, 258 "%s: err_tx_defrag = 0x%08x\n", 259 __func__, ha->err_tx_defrag); 260 } 261 return (err); 262 } 263 264 static void 265 qls_add_sysctls(qla_host_t *ha) 266 { 267 device_t dev = ha->pci_dev; 268 269 SYSCTL_ADD_STRING(device_get_sysctl_ctx(dev), 270 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), 271 OID_AUTO, "version", CTLFLAG_RD, 272 ver_str, 0, "Driver Version"); 273 274 qls_dbg_level = 0; 275 SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev), 276 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), 277 OID_AUTO, "debug", CTLFLAG_RW, 278 &qls_dbg_level, qls_dbg_level, "Debug Level"); 279 280 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 281 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), 282 OID_AUTO, "drvr_stats", CTLTYPE_INT | CTLFLAG_RW, 283 (void *)ha, 0, 284 qls_sysctl_get_drvr_stats, "I", "Driver Maintained Statistics"); 285 286 return; 287 } 288 289 static void 290 qls_watchdog(void *arg) 291 { 292 qla_host_t *ha = arg; 293 struct ifnet *ifp; 294 295 ifp = ha->ifp; 296 297 if (ha->flags.qla_watchdog_exit) { 298 ha->qla_watchdog_exited = 1; 299 return; 300 } 301 ha->qla_watchdog_exited = 0; 302 303 if (!ha->flags.qla_watchdog_pause) { 304 305 if (ha->qla_initiate_recovery) { 306 307 ha->qla_watchdog_paused = 1; 308 ha->qla_initiate_recovery = 0; 309 ha->err_inject = 0; 310 taskqueue_enqueue(ha->err_tq, &ha->err_task); 311 312 } else if ((ifp->if_snd.ifq_head != NULL) && QL_RUNNING(ifp)) { 313 314 taskqueue_enqueue(ha->tx_tq, &ha->tx_task); 315 } 316 317 ha->qla_watchdog_paused = 0; 318 } else { 319 ha->qla_watchdog_paused = 1; 320 } 321 322 ha->watchdog_ticks = ha->watchdog_ticks++ % 1000; 323 callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS, 324 qls_watchdog, ha); 325 326 return; 327 } 328 329 /* 330 * Name: qls_pci_attach 331 * Function: attaches the device to the operating system 332 */ 333 static int 334 qls_pci_attach(device_t dev) 335 { 336 qla_host_t *ha = NULL; 337 int i; 338 339 QL_DPRINT2((dev, "%s: enter\n", __func__)); 340 341 if ((ha = device_get_softc(dev)) == NULL) { 342 device_printf(dev, "cannot get softc\n"); 343 return (ENOMEM); 344 } 345 346 memset(ha, 0, sizeof (qla_host_t)); 347 348 if (pci_get_device(dev) != PCI_DEVICE_QLOGIC_8000) { 349 device_printf(dev, "device is not QLE8000\n"); 350 return (ENXIO); 351 } 352 353 ha->pci_func = pci_get_function(dev); 354 355 ha->pci_dev = dev; 356 357 pci_enable_busmaster(dev); 358 359 ha->reg_rid = PCIR_BAR(1); 360 ha->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ha->reg_rid, 361 RF_ACTIVE); 362 363 if (ha->pci_reg == NULL) { 364 device_printf(dev, "unable to map any ports\n"); 365 goto qls_pci_attach_err; 366 } 367 368 ha->reg_rid1 = PCIR_BAR(3); 369 ha->pci_reg1 = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 370 &ha->reg_rid1, RF_ACTIVE); 371 372 if (ha->pci_reg1 == NULL) { 373 device_printf(dev, "unable to map any ports\n"); 374 goto qls_pci_attach_err; 375 } 376 377 mtx_init(&ha->hw_lock, "qla80xx_hw_lock", MTX_NETWORK_LOCK, MTX_DEF); 378 mtx_init(&ha->tx_lock, "qla80xx_tx_lock", MTX_NETWORK_LOCK, MTX_DEF); 379 380 qls_add_sysctls(ha); 381 qls_hw_add_sysctls(ha); 382 383 ha->flags.lock_init = 1; 384 385 ha->msix_count = pci_msix_count(dev); 386 387 if (ha->msix_count < qls_get_msix_count(ha)) { 388 device_printf(dev, "%s: msix_count[%d] not enough\n", __func__, 389 ha->msix_count); 390 goto qls_pci_attach_err; 391 } 392 393 ha->msix_count = qls_get_msix_count(ha); 394 395 device_printf(dev, "\n%s: ha %p pci_func 0x%x msix_count 0x%x" 396 " pci_reg %p pci_reg1 %p\n", __func__, ha, 397 ha->pci_func, ha->msix_count, ha->pci_reg, ha->pci_reg1); 398 399 if (pci_alloc_msix(dev, &ha->msix_count)) { 400 device_printf(dev, "%s: pci_alloc_msi[%d] failed\n", __func__, 401 ha->msix_count); 402 ha->msix_count = 0; 403 goto qls_pci_attach_err; 404 } 405 406 for (i = 0; i < ha->num_rx_rings; i++) { 407 ha->irq_vec[i].cq_idx = i; 408 ha->irq_vec[i].ha = ha; 409 ha->irq_vec[i].irq_rid = 1 + i; 410 411 ha->irq_vec[i].irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 412 &ha->irq_vec[i].irq_rid, 413 (RF_ACTIVE | RF_SHAREABLE)); 414 415 if (ha->irq_vec[i].irq == NULL) { 416 device_printf(dev, "could not allocate interrupt\n"); 417 goto qls_pci_attach_err; 418 } 419 420 if (bus_setup_intr(dev, ha->irq_vec[i].irq, 421 (INTR_TYPE_NET | INTR_MPSAFE), NULL, qls_isr, 422 &ha->irq_vec[i], &ha->irq_vec[i].handle)) { 423 device_printf(dev, 424 "could not setup interrupt\n"); 425 goto qls_pci_attach_err; 426 } 427 } 428 429 qls_rd_nic_params(ha); 430 431 /* allocate parent dma tag */ 432 if (qls_alloc_parent_dma_tag(ha)) { 433 device_printf(dev, "%s: qls_alloc_parent_dma_tag failed\n", 434 __func__); 435 goto qls_pci_attach_err; 436 } 437 438 /* alloc all dma buffers */ 439 if (qls_alloc_dma(ha)) { 440 device_printf(dev, "%s: qls_alloc_dma failed\n", __func__); 441 goto qls_pci_attach_err; 442 } 443 444 /* create the o.s ethernet interface */ 445 qls_init_ifnet(dev, ha); 446 447 ha->flags.qla_watchdog_active = 1; 448 ha->flags.qla_watchdog_pause = 1; 449 450 TASK_INIT(&ha->tx_task, 0, qls_tx_done, ha); 451 ha->tx_tq = taskqueue_create_fast("qla_txq", M_NOWAIT, 452 taskqueue_thread_enqueue, &ha->tx_tq); 453 taskqueue_start_threads(&ha->tx_tq, 1, PI_NET, "%s txq", 454 device_get_nameunit(ha->pci_dev)); 455 456 callout_init(&ha->tx_callout, 1); 457 ha->flags.qla_callout_init = 1; 458 459 /* create ioctl device interface */ 460 if (qls_make_cdev(ha)) { 461 device_printf(dev, "%s: qls_make_cdev failed\n", __func__); 462 goto qls_pci_attach_err; 463 } 464 465 callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS, 466 qls_watchdog, ha); 467 468 TASK_INIT(&ha->err_task, 0, qls_error_recovery, ha); 469 ha->err_tq = taskqueue_create_fast("qla_errq", M_NOWAIT, 470 taskqueue_thread_enqueue, &ha->err_tq); 471 taskqueue_start_threads(&ha->err_tq, 1, PI_NET, "%s errq", 472 device_get_nameunit(ha->pci_dev)); 473 474 QL_DPRINT2((dev, "%s: exit 0\n", __func__)); 475 return (0); 476 477 qls_pci_attach_err: 478 479 qls_release(ha); 480 481 QL_DPRINT2((dev, "%s: exit ENXIO\n", __func__)); 482 return (ENXIO); 483 } 484 485 /* 486 * Name: qls_pci_detach 487 * Function: Unhooks the device from the operating system 488 */ 489 static int 490 qls_pci_detach(device_t dev) 491 { 492 qla_host_t *ha = NULL; 493 struct ifnet *ifp; 494 495 QL_DPRINT2((dev, "%s: enter\n", __func__)); 496 497 if ((ha = device_get_softc(dev)) == NULL) { 498 device_printf(dev, "cannot get softc\n"); 499 return (ENOMEM); 500 } 501 502 ifp = ha->ifp; 503 504 (void)QLA_LOCK(ha, __func__, 0); 505 qls_stop(ha); 506 QLA_UNLOCK(ha, __func__); 507 508 qls_release(ha); 509 510 QL_DPRINT2((dev, "%s: exit\n", __func__)); 511 512 return (0); 513 } 514 515 /* 516 * Name: qls_release 517 * Function: Releases the resources allocated for the device 518 */ 519 static void 520 qls_release(qla_host_t *ha) 521 { 522 device_t dev; 523 int i; 524 525 dev = ha->pci_dev; 526 527 if (ha->err_tq) { 528 taskqueue_drain(ha->err_tq, &ha->err_task); 529 taskqueue_free(ha->err_tq); 530 } 531 532 if (ha->tx_tq) { 533 taskqueue_drain(ha->tx_tq, &ha->tx_task); 534 taskqueue_free(ha->tx_tq); 535 } 536 537 qls_del_cdev(ha); 538 539 if (ha->flags.qla_watchdog_active) { 540 ha->flags.qla_watchdog_exit = 1; 541 542 while (ha->qla_watchdog_exited == 0) 543 qls_mdelay(__func__, 1); 544 } 545 546 if (ha->flags.qla_callout_init) 547 callout_stop(&ha->tx_callout); 548 549 if (ha->ifp != NULL) 550 ether_ifdetach(ha->ifp); 551 552 qls_free_dma(ha); 553 qls_free_parent_dma_tag(ha); 554 555 for (i = 0; i < ha->num_rx_rings; i++) { 556 557 if (ha->irq_vec[i].handle) { 558 (void)bus_teardown_intr(dev, ha->irq_vec[i].irq, 559 ha->irq_vec[i].handle); 560 } 561 562 if (ha->irq_vec[i].irq) { 563 (void)bus_release_resource(dev, SYS_RES_IRQ, 564 ha->irq_vec[i].irq_rid, 565 ha->irq_vec[i].irq); 566 } 567 } 568 569 if (ha->msix_count) 570 pci_release_msi(dev); 571 572 if (ha->flags.lock_init) { 573 mtx_destroy(&ha->tx_lock); 574 mtx_destroy(&ha->hw_lock); 575 } 576 577 if (ha->pci_reg) 578 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid, 579 ha->pci_reg); 580 581 if (ha->pci_reg1) 582 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid1, 583 ha->pci_reg1); 584 } 585 586 /* 587 * DMA Related Functions 588 */ 589 590 static void 591 qls_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 592 { 593 *((bus_addr_t *)arg) = 0; 594 595 if (error) { 596 printf("%s: bus_dmamap_load failed (%d)\n", __func__, error); 597 return; 598 } 599 600 *((bus_addr_t *)arg) = segs[0].ds_addr; 601 602 return; 603 } 604 605 int 606 qls_alloc_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf) 607 { 608 int ret = 0; 609 device_t dev; 610 bus_addr_t b_addr; 611 612 dev = ha->pci_dev; 613 614 QL_DPRINT2((dev, "%s: enter\n", __func__)); 615 616 ret = bus_dma_tag_create( 617 ha->parent_tag,/* parent */ 618 dma_buf->alignment, 619 ((bus_size_t)(1ULL << 32)),/* boundary */ 620 BUS_SPACE_MAXADDR, /* lowaddr */ 621 BUS_SPACE_MAXADDR, /* highaddr */ 622 NULL, NULL, /* filter, filterarg */ 623 dma_buf->size, /* maxsize */ 624 1, /* nsegments */ 625 dma_buf->size, /* maxsegsize */ 626 0, /* flags */ 627 NULL, NULL, /* lockfunc, lockarg */ 628 &dma_buf->dma_tag); 629 630 if (ret) { 631 device_printf(dev, "%s: could not create dma tag\n", __func__); 632 goto qls_alloc_dmabuf_exit; 633 } 634 ret = bus_dmamem_alloc(dma_buf->dma_tag, 635 (void **)&dma_buf->dma_b, 636 (BUS_DMA_ZERO | BUS_DMA_COHERENT | BUS_DMA_NOWAIT), 637 &dma_buf->dma_map); 638 if (ret) { 639 bus_dma_tag_destroy(dma_buf->dma_tag); 640 device_printf(dev, "%s: bus_dmamem_alloc failed\n", __func__); 641 goto qls_alloc_dmabuf_exit; 642 } 643 644 ret = bus_dmamap_load(dma_buf->dma_tag, 645 dma_buf->dma_map, 646 dma_buf->dma_b, 647 dma_buf->size, 648 qls_dmamap_callback, 649 &b_addr, BUS_DMA_NOWAIT); 650 651 if (ret || !b_addr) { 652 bus_dma_tag_destroy(dma_buf->dma_tag); 653 bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b, 654 dma_buf->dma_map); 655 ret = -1; 656 goto qls_alloc_dmabuf_exit; 657 } 658 659 dma_buf->dma_addr = b_addr; 660 661 qls_alloc_dmabuf_exit: 662 QL_DPRINT2((dev, "%s: exit ret 0x%08x tag %p map %p b %p sz 0x%x\n", 663 __func__, ret, (void *)dma_buf->dma_tag, 664 (void *)dma_buf->dma_map, (void *)dma_buf->dma_b, 665 dma_buf->size)); 666 667 return ret; 668 } 669 670 void 671 qls_free_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf) 672 { 673 bus_dmamap_unload(dma_buf->dma_tag, dma_buf->dma_map); 674 bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b, dma_buf->dma_map); 675 bus_dma_tag_destroy(dma_buf->dma_tag); 676 } 677 678 static int 679 qls_alloc_parent_dma_tag(qla_host_t *ha) 680 { 681 int ret; 682 device_t dev; 683 684 dev = ha->pci_dev; 685 686 /* 687 * Allocate parent DMA Tag 688 */ 689 ret = bus_dma_tag_create( 690 bus_get_dma_tag(dev), /* parent */ 691 1,((bus_size_t)(1ULL << 32)),/* alignment, boundary */ 692 BUS_SPACE_MAXADDR, /* lowaddr */ 693 BUS_SPACE_MAXADDR, /* highaddr */ 694 NULL, NULL, /* filter, filterarg */ 695 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */ 696 0, /* nsegments */ 697 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */ 698 0, /* flags */ 699 NULL, NULL, /* lockfunc, lockarg */ 700 &ha->parent_tag); 701 702 if (ret) { 703 device_printf(dev, "%s: could not create parent dma tag\n", 704 __func__); 705 return (-1); 706 } 707 708 ha->flags.parent_tag = 1; 709 710 return (0); 711 } 712 713 static void 714 qls_free_parent_dma_tag(qla_host_t *ha) 715 { 716 if (ha->flags.parent_tag) { 717 bus_dma_tag_destroy(ha->parent_tag); 718 ha->flags.parent_tag = 0; 719 } 720 } 721 722 /* 723 * Name: qls_init_ifnet 724 * Function: Creates the Network Device Interface and Registers it with the O.S 725 */ 726 727 static void 728 qls_init_ifnet(device_t dev, qla_host_t *ha) 729 { 730 struct ifnet *ifp; 731 732 QL_DPRINT2((dev, "%s: enter\n", __func__)); 733 734 ifp = ha->ifp = if_alloc(IFT_ETHER); 735 736 if (ifp == NULL) 737 panic("%s: cannot if_alloc()\n", device_get_nameunit(dev)); 738 739 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 740 ifp->if_baudrate = IF_Gbps(10); 741 ifp->if_init = qls_init; 742 ifp->if_softc = ha; 743 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 744 ifp->if_ioctl = qls_ioctl; 745 ifp->if_start = qls_start; 746 747 IFQ_SET_MAXLEN(&ifp->if_snd, qls_get_ifq_snd_maxlen(ha)); 748 ifp->if_snd.ifq_drv_maxlen = qls_get_ifq_snd_maxlen(ha); 749 IFQ_SET_READY(&ifp->if_snd); 750 751 ha->max_frame_size = ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN; 752 if (ha->max_frame_size <= MCLBYTES) { 753 ha->msize = MCLBYTES; 754 } else if (ha->max_frame_size <= MJUMPAGESIZE) { 755 ha->msize = MJUMPAGESIZE; 756 } else 757 ha->msize = MJUM9BYTES; 758 759 ether_ifattach(ifp, qls_get_mac_addr(ha)); 760 761 ifp->if_capabilities = IFCAP_JUMBO_MTU; 762 763 ifp->if_capabilities |= IFCAP_HWCSUM; 764 ifp->if_capabilities |= IFCAP_VLAN_MTU; 765 766 ifp->if_capabilities |= IFCAP_TSO4; 767 ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING; 768 ifp->if_capabilities |= IFCAP_VLAN_HWTSO; 769 ifp->if_capabilities |= IFCAP_LINKSTATE; 770 771 ifp->if_capenable = ifp->if_capabilities; 772 773 ifp->if_hdrlen = sizeof(struct ether_vlan_header); 774 775 ifmedia_init(&ha->media, IFM_IMASK, qls_media_change, qls_media_status); 776 777 ifmedia_add(&ha->media, (IFM_ETHER | qls_get_optics(ha) | IFM_FDX), 0, 778 NULL); 779 ifmedia_add(&ha->media, (IFM_ETHER | IFM_AUTO), 0, NULL); 780 781 ifmedia_set(&ha->media, (IFM_ETHER | IFM_AUTO)); 782 783 QL_DPRINT2((dev, "%s: exit\n", __func__)); 784 785 return; 786 } 787 788 static void 789 qls_init_locked(qla_host_t *ha) 790 { 791 struct ifnet *ifp = ha->ifp; 792 793 qls_stop(ha); 794 795 qls_flush_xmt_bufs(ha); 796 797 if (qls_alloc_rcv_bufs(ha) != 0) 798 return; 799 800 if (qls_config_lro(ha)) 801 return; 802 803 bcopy(IF_LLADDR(ha->ifp), ha->mac_addr, ETHER_ADDR_LEN); 804 805 ifp->if_hwassist = CSUM_IP; 806 ifp->if_hwassist |= CSUM_TCP; 807 ifp->if_hwassist |= CSUM_UDP; 808 ifp->if_hwassist |= CSUM_TSO; 809 810 if (qls_init_hw_if(ha) == 0) { 811 ifp = ha->ifp; 812 ifp->if_drv_flags |= IFF_DRV_RUNNING; 813 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 814 ha->flags.qla_watchdog_pause = 0; 815 } 816 817 return; 818 } 819 820 static void 821 qls_init(void *arg) 822 { 823 qla_host_t *ha; 824 825 ha = (qla_host_t *)arg; 826 827 QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__)); 828 829 (void)QLA_LOCK(ha, __func__, 0); 830 qls_init_locked(ha); 831 QLA_UNLOCK(ha, __func__); 832 833 QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__)); 834 } 835 836 static void 837 qls_set_multi(qla_host_t *ha, uint32_t add_multi) 838 { 839 uint8_t mta[Q8_MAX_NUM_MULTICAST_ADDRS * Q8_MAC_ADDR_LEN]; 840 struct ifmultiaddr *ifma; 841 int mcnt = 0; 842 struct ifnet *ifp = ha->ifp; 843 844 if_maddr_rlock(ifp); 845 846 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 847 848 if (ifma->ifma_addr->sa_family != AF_LINK) 849 continue; 850 851 if (mcnt == Q8_MAX_NUM_MULTICAST_ADDRS) 852 break; 853 854 bcopy(LLADDR((struct sockaddr_dl *) ifma->ifma_addr), 855 &mta[mcnt * Q8_MAC_ADDR_LEN], Q8_MAC_ADDR_LEN); 856 857 mcnt++; 858 } 859 860 if_maddr_runlock(ifp); 861 862 if (QLA_LOCK(ha, __func__, 1) == 0) { 863 qls_hw_set_multi(ha, mta, mcnt, add_multi); 864 QLA_UNLOCK(ha, __func__); 865 } 866 867 return; 868 } 869 870 static int 871 qls_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 872 { 873 int ret = 0; 874 struct ifreq *ifr = (struct ifreq *)data; 875 struct ifaddr *ifa = (struct ifaddr *)data; 876 qla_host_t *ha; 877 878 ha = (qla_host_t *)ifp->if_softc; 879 880 switch (cmd) { 881 case SIOCSIFADDR: 882 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFADDR (0x%lx)\n", 883 __func__, cmd)); 884 885 if (ifa->ifa_addr->sa_family == AF_INET) { 886 ifp->if_flags |= IFF_UP; 887 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 888 (void)QLA_LOCK(ha, __func__, 0); 889 qls_init_locked(ha); 890 QLA_UNLOCK(ha, __func__); 891 } 892 QL_DPRINT4((ha->pci_dev, 893 "%s: SIOCSIFADDR (0x%lx) ipv4 [0x%08x]\n", 894 __func__, cmd, 895 ntohl(IA_SIN(ifa)->sin_addr.s_addr))); 896 897 arp_ifinit(ifp, ifa); 898 } else { 899 ether_ioctl(ifp, cmd, data); 900 } 901 break; 902 903 case SIOCSIFMTU: 904 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFMTU (0x%lx)\n", 905 __func__, cmd)); 906 907 if (ifr->ifr_mtu > QLA_MAX_MTU) { 908 ret = EINVAL; 909 } else { 910 (void) QLA_LOCK(ha, __func__, 0); 911 912 ifp->if_mtu = ifr->ifr_mtu; 913 ha->max_frame_size = 914 ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN; 915 916 QLA_UNLOCK(ha, __func__); 917 918 if (ret) 919 ret = EINVAL; 920 } 921 922 break; 923 924 case SIOCSIFFLAGS: 925 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFFLAGS (0x%lx)\n", 926 __func__, cmd)); 927 928 (void)QLA_LOCK(ha, __func__, 0); 929 930 if (ifp->if_flags & IFF_UP) { 931 if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) { 932 if ((ifp->if_flags ^ ha->if_flags) & 933 IFF_PROMISC) { 934 ret = qls_set_promisc(ha); 935 } else if ((ifp->if_flags ^ ha->if_flags) & 936 IFF_ALLMULTI) { 937 ret = qls_set_allmulti(ha); 938 } 939 } else { 940 ha->max_frame_size = ifp->if_mtu + 941 ETHER_HDR_LEN + ETHER_CRC_LEN; 942 qls_init_locked(ha); 943 } 944 } else { 945 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 946 qls_stop(ha); 947 ha->if_flags = ifp->if_flags; 948 } 949 950 QLA_UNLOCK(ha, __func__); 951 break; 952 953 case SIOCADDMULTI: 954 QL_DPRINT4((ha->pci_dev, 955 "%s: %s (0x%lx)\n", __func__, "SIOCADDMULTI", cmd)); 956 957 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 958 qls_set_multi(ha, 1); 959 } 960 break; 961 962 case SIOCDELMULTI: 963 QL_DPRINT4((ha->pci_dev, 964 "%s: %s (0x%lx)\n", __func__, "SIOCDELMULTI", cmd)); 965 966 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 967 qls_set_multi(ha, 0); 968 } 969 break; 970 971 case SIOCSIFMEDIA: 972 case SIOCGIFMEDIA: 973 QL_DPRINT4((ha->pci_dev, 974 "%s: SIOCSIFMEDIA/SIOCGIFMEDIA (0x%lx)\n", 975 __func__, cmd)); 976 ret = ifmedia_ioctl(ifp, ifr, &ha->media, cmd); 977 break; 978 979 case SIOCSIFCAP: 980 { 981 int mask = ifr->ifr_reqcap ^ ifp->if_capenable; 982 983 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFCAP (0x%lx)\n", 984 __func__, cmd)); 985 986 if (mask & IFCAP_HWCSUM) 987 ifp->if_capenable ^= IFCAP_HWCSUM; 988 if (mask & IFCAP_TSO4) 989 ifp->if_capenable ^= IFCAP_TSO4; 990 if (mask & IFCAP_VLAN_HWTAGGING) 991 ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING; 992 if (mask & IFCAP_VLAN_HWTSO) 993 ifp->if_capenable ^= IFCAP_VLAN_HWTSO; 994 995 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) 996 qls_init(ha); 997 998 VLAN_CAPABILITIES(ifp); 999 break; 1000 } 1001 1002 default: 1003 QL_DPRINT4((ha->pci_dev, "%s: default (0x%lx)\n", 1004 __func__, cmd)); 1005 ret = ether_ioctl(ifp, cmd, data); 1006 break; 1007 } 1008 1009 return (ret); 1010 } 1011 1012 static int 1013 qls_media_change(struct ifnet *ifp) 1014 { 1015 qla_host_t *ha; 1016 struct ifmedia *ifm; 1017 int ret = 0; 1018 1019 ha = (qla_host_t *)ifp->if_softc; 1020 1021 QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__)); 1022 1023 ifm = &ha->media; 1024 1025 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 1026 ret = EINVAL; 1027 1028 QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__)); 1029 1030 return (ret); 1031 } 1032 1033 static void 1034 qls_media_status(struct ifnet *ifp, struct ifmediareq *ifmr) 1035 { 1036 qla_host_t *ha; 1037 1038 ha = (qla_host_t *)ifp->if_softc; 1039 1040 QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__)); 1041 1042 ifmr->ifm_status = IFM_AVALID; 1043 ifmr->ifm_active = IFM_ETHER; 1044 1045 qls_update_link_state(ha); 1046 if (ha->link_up) { 1047 ifmr->ifm_status |= IFM_ACTIVE; 1048 ifmr->ifm_active |= (IFM_FDX | qls_get_optics(ha)); 1049 } 1050 1051 QL_DPRINT2((ha->pci_dev, "%s: exit (%s)\n", __func__,\ 1052 (ha->link_up ? "link_up" : "link_down"))); 1053 1054 return; 1055 } 1056 1057 static void 1058 qls_start(struct ifnet *ifp) 1059 { 1060 int i, ret = 0; 1061 struct mbuf *m_head; 1062 qla_host_t *ha = (qla_host_t *)ifp->if_softc; 1063 1064 QL_DPRINT8((ha->pci_dev, "%s: enter\n", __func__)); 1065 1066 if (!mtx_trylock(&ha->tx_lock)) { 1067 QL_DPRINT8((ha->pci_dev, 1068 "%s: mtx_trylock(&ha->tx_lock) failed\n", __func__)); 1069 return; 1070 } 1071 1072 if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) == 1073 IFF_DRV_RUNNING) { 1074 1075 for (i = 0; i < ha->num_tx_rings; i++) { 1076 ret |= qls_hw_tx_done(ha, i); 1077 } 1078 1079 if (ret == 0) 1080 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1081 } 1082 1083 if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) != 1084 IFF_DRV_RUNNING) { 1085 QL_DPRINT8((ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__)); 1086 QLA_TX_UNLOCK(ha); 1087 return; 1088 } 1089 1090 if (!ha->link_up) { 1091 qls_update_link_state(ha); 1092 if (!ha->link_up) { 1093 QL_DPRINT8((ha->pci_dev, "%s: link down\n", __func__)); 1094 QLA_TX_UNLOCK(ha); 1095 return; 1096 } 1097 } 1098 1099 while (ifp->if_snd.ifq_head != NULL) { 1100 1101 IF_DEQUEUE(&ifp->if_snd, m_head); 1102 1103 if (m_head == NULL) { 1104 QL_DPRINT8((ha->pci_dev, "%s: m_head == NULL\n", 1105 __func__)); 1106 break; 1107 } 1108 1109 if (qls_send(ha, &m_head)) { 1110 if (m_head == NULL) 1111 break; 1112 QL_DPRINT8((ha->pci_dev, "%s: PREPEND\n", __func__)); 1113 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1114 IF_PREPEND(&ifp->if_snd, m_head); 1115 break; 1116 } 1117 /* Send a copy of the frame to the BPF listener */ 1118 ETHER_BPF_MTAP(ifp, m_head); 1119 } 1120 1121 QLA_TX_UNLOCK(ha); 1122 QL_DPRINT8((ha->pci_dev, "%s: exit\n", __func__)); 1123 return; 1124 } 1125 1126 static int 1127 qls_send(qla_host_t *ha, struct mbuf **m_headp) 1128 { 1129 bus_dma_segment_t segs[QLA_MAX_SEGMENTS]; 1130 bus_dmamap_t map; 1131 int nsegs; 1132 int ret = -1; 1133 uint32_t tx_idx; 1134 struct mbuf *m_head = *m_headp; 1135 uint32_t txr_idx = 0; 1136 1137 QL_DPRINT8((ha->pci_dev, "%s: enter\n", __func__)); 1138 1139 /* check if flowid is set */ 1140 if (M_HASHTYPE_GET(m_head) != M_HASHTYPE_NONE) 1141 txr_idx = m_head->m_pkthdr.flowid & (ha->num_tx_rings - 1); 1142 1143 tx_idx = ha->tx_ring[txr_idx].txr_next; 1144 1145 map = ha->tx_ring[txr_idx].tx_buf[tx_idx].map; 1146 1147 ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head, segs, &nsegs, 1148 BUS_DMA_NOWAIT); 1149 1150 if (ret == EFBIG) { 1151 1152 struct mbuf *m; 1153 1154 QL_DPRINT8((ha->pci_dev, "%s: EFBIG [%d]\n", __func__, 1155 m_head->m_pkthdr.len)); 1156 1157 m = m_defrag(m_head, M_NOWAIT); 1158 if (m == NULL) { 1159 ha->err_tx_defrag++; 1160 m_freem(m_head); 1161 *m_headp = NULL; 1162 device_printf(ha->pci_dev, 1163 "%s: m_defrag() = NULL [%d]\n", 1164 __func__, ret); 1165 return (ENOBUFS); 1166 } 1167 m_head = m; 1168 *m_headp = m_head; 1169 1170 if ((ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head, 1171 segs, &nsegs, BUS_DMA_NOWAIT))) { 1172 1173 ha->err_tx_dmamap_load++; 1174 1175 device_printf(ha->pci_dev, 1176 "%s: bus_dmamap_load_mbuf_sg failed0[%d, %d]\n", 1177 __func__, ret, m_head->m_pkthdr.len); 1178 1179 if (ret != ENOMEM) { 1180 m_freem(m_head); 1181 *m_headp = NULL; 1182 } 1183 return (ret); 1184 } 1185 1186 } else if (ret) { 1187 1188 ha->err_tx_dmamap_load++; 1189 1190 device_printf(ha->pci_dev, 1191 "%s: bus_dmamap_load_mbuf_sg failed1[%d, %d]\n", 1192 __func__, ret, m_head->m_pkthdr.len); 1193 1194 if (ret != ENOMEM) { 1195 m_freem(m_head); 1196 *m_headp = NULL; 1197 } 1198 return (ret); 1199 } 1200 1201 QL_ASSERT(ha, (nsegs != 0), ("qls_send: empty packet")); 1202 1203 bus_dmamap_sync(ha->tx_tag, map, BUS_DMASYNC_PREWRITE); 1204 1205 if (!(ret = qls_hw_send(ha, segs, nsegs, tx_idx, m_head, txr_idx))) { 1206 1207 ha->tx_ring[txr_idx].count++; 1208 ha->tx_ring[txr_idx].tx_buf[tx_idx].m_head = m_head; 1209 ha->tx_ring[txr_idx].tx_buf[tx_idx].map = map; 1210 } else { 1211 if (ret == EINVAL) { 1212 if (m_head) 1213 m_freem(m_head); 1214 *m_headp = NULL; 1215 } 1216 } 1217 1218 QL_DPRINT8((ha->pci_dev, "%s: exit\n", __func__)); 1219 return (ret); 1220 } 1221 1222 static void 1223 qls_stop(qla_host_t *ha) 1224 { 1225 struct ifnet *ifp = ha->ifp; 1226 device_t dev; 1227 1228 dev = ha->pci_dev; 1229 1230 ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING); 1231 1232 ha->flags.qla_watchdog_pause = 1; 1233 1234 while (!ha->qla_watchdog_paused) 1235 qls_mdelay(__func__, 1); 1236 1237 qls_del_hw_if(ha); 1238 1239 qls_free_lro(ha); 1240 1241 qls_flush_xmt_bufs(ha); 1242 qls_free_rcv_bufs(ha); 1243 1244 return; 1245 } 1246 1247 /* 1248 * Buffer Management Functions for Transmit and Receive Rings 1249 */ 1250 /* 1251 * Release mbuf after it sent on the wire 1252 */ 1253 static void 1254 qls_flush_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb) 1255 { 1256 QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__)); 1257 1258 if (txb->m_head) { 1259 1260 bus_dmamap_unload(ha->tx_tag, txb->map); 1261 1262 m_freem(txb->m_head); 1263 txb->m_head = NULL; 1264 } 1265 1266 QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__)); 1267 } 1268 1269 static void 1270 qls_flush_xmt_bufs(qla_host_t *ha) 1271 { 1272 int i, j; 1273 1274 for (j = 0; j < ha->num_tx_rings; j++) { 1275 for (i = 0; i < NUM_TX_DESCRIPTORS; i++) 1276 qls_flush_tx_buf(ha, &ha->tx_ring[j].tx_buf[i]); 1277 } 1278 1279 return; 1280 } 1281 1282 1283 static int 1284 qls_alloc_rcv_mbufs(qla_host_t *ha, int r) 1285 { 1286 int i, j, ret = 0; 1287 qla_rx_buf_t *rxb; 1288 qla_rx_ring_t *rx_ring; 1289 volatile q81_bq_addr_e_t *sbq_e; 1290 1291 1292 rx_ring = &ha->rx_ring[r]; 1293 1294 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) { 1295 1296 rxb = &rx_ring->rx_buf[i]; 1297 1298 ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT, &rxb->map); 1299 1300 if (ret) { 1301 device_printf(ha->pci_dev, 1302 "%s: dmamap[%d, %d] failed\n", __func__, r, i); 1303 1304 for (j = 0; j < i; j++) { 1305 rxb = &rx_ring->rx_buf[j]; 1306 bus_dmamap_destroy(ha->rx_tag, rxb->map); 1307 } 1308 goto qls_alloc_rcv_mbufs_err; 1309 } 1310 } 1311 1312 rx_ring = &ha->rx_ring[r]; 1313 1314 sbq_e = rx_ring->sbq_vaddr; 1315 1316 rxb = &rx_ring->rx_buf[0]; 1317 1318 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) { 1319 1320 if (!(ret = qls_get_mbuf(ha, rxb, NULL))) { 1321 1322 /* 1323 * set the physical address in the 1324 * corresponding descriptor entry in the 1325 * receive ring/queue for the hba 1326 */ 1327 1328 sbq_e->addr_lo = rxb->paddr & 0xFFFFFFFF; 1329 sbq_e->addr_hi = (rxb->paddr >> 32) & 0xFFFFFFFF; 1330 1331 } else { 1332 device_printf(ha->pci_dev, 1333 "%s: qls_get_mbuf [%d, %d] failed\n", 1334 __func__, r, i); 1335 bus_dmamap_destroy(ha->rx_tag, rxb->map); 1336 goto qls_alloc_rcv_mbufs_err; 1337 } 1338 1339 rxb++; 1340 sbq_e++; 1341 } 1342 return 0; 1343 1344 qls_alloc_rcv_mbufs_err: 1345 return (-1); 1346 } 1347 1348 static void 1349 qls_free_rcv_bufs(qla_host_t *ha) 1350 { 1351 int i, r; 1352 qla_rx_buf_t *rxb; 1353 qla_rx_ring_t *rxr; 1354 1355 for (r = 0; r < ha->num_rx_rings; r++) { 1356 1357 rxr = &ha->rx_ring[r]; 1358 1359 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) { 1360 1361 rxb = &rxr->rx_buf[i]; 1362 1363 if (rxb->m_head != NULL) { 1364 bus_dmamap_unload(ha->rx_tag, rxb->map); 1365 bus_dmamap_destroy(ha->rx_tag, rxb->map); 1366 m_freem(rxb->m_head); 1367 } 1368 } 1369 bzero(rxr->rx_buf, (sizeof(qla_rx_buf_t) * NUM_RX_DESCRIPTORS)); 1370 } 1371 return; 1372 } 1373 1374 static int 1375 qls_alloc_rcv_bufs(qla_host_t *ha) 1376 { 1377 int r, ret = 0; 1378 qla_rx_ring_t *rxr; 1379 1380 for (r = 0; r < ha->num_rx_rings; r++) { 1381 rxr = &ha->rx_ring[r]; 1382 bzero(rxr->rx_buf, (sizeof(qla_rx_buf_t) * NUM_RX_DESCRIPTORS)); 1383 } 1384 1385 for (r = 0; r < ha->num_rx_rings; r++) { 1386 1387 ret = qls_alloc_rcv_mbufs(ha, r); 1388 1389 if (ret) 1390 qls_free_rcv_bufs(ha); 1391 } 1392 1393 return (ret); 1394 } 1395 1396 int 1397 qls_get_mbuf(qla_host_t *ha, qla_rx_buf_t *rxb, struct mbuf *nmp) 1398 { 1399 struct mbuf *mp = nmp; 1400 struct ifnet *ifp; 1401 int ret = 0; 1402 uint32_t offset; 1403 bus_dma_segment_t segs[1]; 1404 int nsegs; 1405 1406 QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__)); 1407 1408 ifp = ha->ifp; 1409 1410 if (mp == NULL) { 1411 1412 mp = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, ha->msize); 1413 1414 if (mp == NULL) { 1415 1416 if (ha->msize == MCLBYTES) 1417 ha->err_m_getcl++; 1418 else 1419 ha->err_m_getjcl++; 1420 1421 ret = ENOBUFS; 1422 device_printf(ha->pci_dev, 1423 "%s: m_getcl failed\n", __func__); 1424 goto exit_qls_get_mbuf; 1425 } 1426 mp->m_len = mp->m_pkthdr.len = ha->msize; 1427 } else { 1428 mp->m_len = mp->m_pkthdr.len = ha->msize; 1429 mp->m_data = mp->m_ext.ext_buf; 1430 mp->m_next = NULL; 1431 } 1432 1433 /* align the receive buffers to 8 byte boundary */ 1434 offset = (uint32_t)((unsigned long long)mp->m_data & 0x7ULL); 1435 if (offset) { 1436 offset = 8 - offset; 1437 m_adj(mp, offset); 1438 } 1439 1440 /* 1441 * Using memory from the mbuf cluster pool, invoke the bus_dma 1442 * machinery to arrange the memory mapping. 1443 */ 1444 ret = bus_dmamap_load_mbuf_sg(ha->rx_tag, rxb->map, 1445 mp, segs, &nsegs, BUS_DMA_NOWAIT); 1446 rxb->paddr = segs[0].ds_addr; 1447 1448 if (ret || !rxb->paddr || (nsegs != 1)) { 1449 m_freem(mp); 1450 rxb->m_head = NULL; 1451 device_printf(ha->pci_dev, 1452 "%s: bus_dmamap_load failed[%d, 0x%016llx, %d]\n", 1453 __func__, ret, (long long unsigned int)rxb->paddr, 1454 nsegs); 1455 ret = -1; 1456 goto exit_qls_get_mbuf; 1457 } 1458 rxb->m_head = mp; 1459 bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_PREREAD); 1460 1461 exit_qls_get_mbuf: 1462 QL_DPRINT2((ha->pci_dev, "%s: exit ret = 0x%08x\n", __func__, ret)); 1463 return (ret); 1464 } 1465 1466 static void 1467 qls_tx_done(void *context, int pending) 1468 { 1469 qla_host_t *ha = context; 1470 struct ifnet *ifp; 1471 1472 ifp = ha->ifp; 1473 1474 if (!ifp) 1475 return; 1476 1477 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 1478 QL_DPRINT8((ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__)); 1479 return; 1480 } 1481 1482 qls_start(ha->ifp); 1483 return; 1484 } 1485 1486 static int 1487 qls_config_lro(qla_host_t *ha) 1488 { 1489 int i; 1490 struct lro_ctrl *lro; 1491 1492 for (i = 0; i < ha->num_rx_rings; i++) { 1493 lro = &ha->rx_ring[i].lro; 1494 if (tcp_lro_init(lro)) { 1495 device_printf(ha->pci_dev, "%s: tcp_lro_init failed\n", 1496 __func__); 1497 return (-1); 1498 } 1499 lro->ifp = ha->ifp; 1500 } 1501 ha->flags.lro_init = 1; 1502 1503 QL_DPRINT2((ha->pci_dev, "%s: LRO initialized\n", __func__)); 1504 return (0); 1505 } 1506 1507 static void 1508 qls_free_lro(qla_host_t *ha) 1509 { 1510 int i; 1511 struct lro_ctrl *lro; 1512 1513 if (!ha->flags.lro_init) 1514 return; 1515 1516 for (i = 0; i < ha->num_rx_rings; i++) { 1517 lro = &ha->rx_ring[i].lro; 1518 tcp_lro_free(lro); 1519 } 1520 ha->flags.lro_init = 0; 1521 } 1522 1523 static void 1524 qls_error_recovery(void *context, int pending) 1525 { 1526 qla_host_t *ha = context; 1527 1528 qls_init(ha); 1529 1530 return; 1531 } 1532
Cache object: 67ab98a2cc9fdd854f245c026b2ecc7c
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