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 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2013-2014 Qlogic Corporation 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 18 * and ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 /* 31 * File: qls_os.c 32 * Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656. 33 */ 34 35 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD$"); 37 38 #include "qls_os.h" 39 #include "qls_hw.h" 40 #include "qls_def.h" 41 #include "qls_inline.h" 42 #include "qls_ver.h" 43 #include "qls_glbl.h" 44 #include "qls_dbg.h" 45 #include <sys/smp.h> 46 47 /* 48 * Some PCI Configuration Space Related Defines 49 */ 50 51 #ifndef PCI_VENDOR_QLOGIC 52 #define PCI_VENDOR_QLOGIC 0x1077 53 #endif 54 55 #ifndef PCI_DEVICE_QLOGIC_8000 56 #define PCI_DEVICE_QLOGIC_8000 0x8000 57 #endif 58 59 #define PCI_QLOGIC_DEV8000 \ 60 ((PCI_DEVICE_QLOGIC_8000 << 16) | PCI_VENDOR_QLOGIC) 61 62 /* 63 * static functions 64 */ 65 static int qls_alloc_parent_dma_tag(qla_host_t *ha); 66 static void qls_free_parent_dma_tag(qla_host_t *ha); 67 68 static void qls_flush_xmt_bufs(qla_host_t *ha); 69 70 static int qls_alloc_rcv_bufs(qla_host_t *ha); 71 static void qls_free_rcv_bufs(qla_host_t *ha); 72 73 static void qls_init_ifnet(device_t dev, qla_host_t *ha); 74 static void qls_release(qla_host_t *ha); 75 static void qls_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, 76 int error); 77 static void qls_stop(qla_host_t *ha); 78 static int qls_send(qla_host_t *ha, struct mbuf **m_headp); 79 static void qls_tx_done(void *context, int pending); 80 81 static int qls_config_lro(qla_host_t *ha); 82 static void qls_free_lro(qla_host_t *ha); 83 84 static void qls_error_recovery(void *context, int pending); 85 86 /* 87 * Hooks to the Operating Systems 88 */ 89 static int qls_pci_probe (device_t); 90 static int qls_pci_attach (device_t); 91 static int qls_pci_detach (device_t); 92 93 static void qls_start(struct ifnet *ifp); 94 static void qls_init(void *arg); 95 static int qls_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data); 96 static int qls_media_change(struct ifnet *ifp); 97 static void qls_media_status(struct ifnet *ifp, struct ifmediareq *ifmr); 98 99 static device_method_t qla_pci_methods[] = { 100 /* Device interface */ 101 DEVMETHOD(device_probe, qls_pci_probe), 102 DEVMETHOD(device_attach, qls_pci_attach), 103 DEVMETHOD(device_detach, qls_pci_detach), 104 { 0, 0 } 105 }; 106 107 static driver_t qla_pci_driver = { 108 "ql", qla_pci_methods, sizeof (qla_host_t), 109 }; 110 111 static devclass_t qla8000_devclass; 112 113 DRIVER_MODULE(qla8000, pci, qla_pci_driver, qla8000_devclass, 0, 0); 114 115 MODULE_DEPEND(qla8000, pci, 1, 1, 1); 116 MODULE_DEPEND(qla8000, ether, 1, 1, 1); 117 118 MALLOC_DEFINE(M_QLA8000BUF, "qla8000buf", "Buffers for qla8000 driver"); 119 120 static char dev_str[64]; 121 static char ver_str[64]; 122 123 /* 124 * Name: qls_pci_probe 125 * Function: Validate the PCI device to be a QLA80XX device 126 */ 127 static int 128 qls_pci_probe(device_t dev) 129 { 130 switch ((pci_get_device(dev) << 16) | (pci_get_vendor(dev))) { 131 case PCI_QLOGIC_DEV8000: 132 snprintf(dev_str, sizeof(dev_str), "%s v%d.%d.%d", 133 "Qlogic ISP 8000 PCI CNA Adapter-Ethernet Function", 134 QLA_VERSION_MAJOR, QLA_VERSION_MINOR, 135 QLA_VERSION_BUILD); 136 snprintf(ver_str, sizeof(ver_str), "v%d.%d.%d", 137 QLA_VERSION_MAJOR, QLA_VERSION_MINOR, 138 QLA_VERSION_BUILD); 139 device_set_desc(dev, dev_str); 140 break; 141 default: 142 return (ENXIO); 143 } 144 145 if (bootverbose) 146 printf("%s: %s\n ", __func__, dev_str); 147 148 return (BUS_PROBE_DEFAULT); 149 } 150 151 static int 152 qls_sysctl_get_drvr_stats(SYSCTL_HANDLER_ARGS) 153 { 154 int err = 0, ret; 155 qla_host_t *ha; 156 uint32_t i; 157 158 err = sysctl_handle_int(oidp, &ret, 0, req); 159 160 if (err || !req->newptr) 161 return (err); 162 163 if (ret == 1) { 164 ha = (qla_host_t *)arg1; 165 166 for (i = 0; i < ha->num_tx_rings; i++) { 167 device_printf(ha->pci_dev, 168 "%s: tx_ring[%d].tx_frames= %p\n", 169 __func__, i, 170 (void *)ha->tx_ring[i].tx_frames); 171 172 device_printf(ha->pci_dev, 173 "%s: tx_ring[%d].tx_tso_frames= %p\n", 174 __func__, i, 175 (void *)ha->tx_ring[i].tx_tso_frames); 176 177 device_printf(ha->pci_dev, 178 "%s: tx_ring[%d].tx_vlan_frames= %p\n", 179 __func__, i, 180 (void *)ha->tx_ring[i].tx_vlan_frames); 181 182 device_printf(ha->pci_dev, 183 "%s: tx_ring[%d].txr_free= 0x%08x\n", 184 __func__, i, 185 ha->tx_ring[i].txr_free); 186 187 device_printf(ha->pci_dev, 188 "%s: tx_ring[%d].txr_next= 0x%08x\n", 189 __func__, i, 190 ha->tx_ring[i].txr_next); 191 192 device_printf(ha->pci_dev, 193 "%s: tx_ring[%d].txr_done= 0x%08x\n", 194 __func__, i, 195 ha->tx_ring[i].txr_done); 196 197 device_printf(ha->pci_dev, 198 "%s: tx_ring[%d].txr_cons_idx= 0x%08x\n", 199 __func__, i, 200 *(ha->tx_ring[i].txr_cons_vaddr)); 201 } 202 203 for (i = 0; i < ha->num_rx_rings; i++) { 204 device_printf(ha->pci_dev, 205 "%s: rx_ring[%d].rx_int= %p\n", 206 __func__, i, 207 (void *)ha->rx_ring[i].rx_int); 208 209 device_printf(ha->pci_dev, 210 "%s: rx_ring[%d].rss_int= %p\n", 211 __func__, i, 212 (void *)ha->rx_ring[i].rss_int); 213 214 device_printf(ha->pci_dev, 215 "%s: rx_ring[%d].lbq_next= 0x%08x\n", 216 __func__, i, 217 ha->rx_ring[i].lbq_next); 218 219 device_printf(ha->pci_dev, 220 "%s: rx_ring[%d].lbq_free= 0x%08x\n", 221 __func__, i, 222 ha->rx_ring[i].lbq_free); 223 224 device_printf(ha->pci_dev, 225 "%s: rx_ring[%d].lbq_in= 0x%08x\n", 226 __func__, i, 227 ha->rx_ring[i].lbq_in); 228 229 device_printf(ha->pci_dev, 230 "%s: rx_ring[%d].sbq_next= 0x%08x\n", 231 __func__, i, 232 ha->rx_ring[i].sbq_next); 233 234 device_printf(ha->pci_dev, 235 "%s: rx_ring[%d].sbq_free= 0x%08x\n", 236 __func__, i, 237 ha->rx_ring[i].sbq_free); 238 239 device_printf(ha->pci_dev, 240 "%s: rx_ring[%d].sbq_in= 0x%08x\n", 241 __func__, i, 242 ha->rx_ring[i].sbq_in); 243 } 244 245 device_printf(ha->pci_dev, "%s: err_m_getcl = 0x%08x\n", 246 __func__, ha->err_m_getcl); 247 device_printf(ha->pci_dev, "%s: err_m_getjcl = 0x%08x\n", 248 __func__, ha->err_m_getjcl); 249 device_printf(ha->pci_dev, 250 "%s: err_tx_dmamap_create = 0x%08x\n", 251 __func__, ha->err_tx_dmamap_create); 252 device_printf(ha->pci_dev, 253 "%s: err_tx_dmamap_load = 0x%08x\n", 254 __func__, ha->err_tx_dmamap_load); 255 device_printf(ha->pci_dev, 256 "%s: err_tx_defrag = 0x%08x\n", 257 __func__, ha->err_tx_defrag); 258 } 259 return (err); 260 } 261 262 static void 263 qls_add_sysctls(qla_host_t *ha) 264 { 265 device_t dev = ha->pci_dev; 266 267 SYSCTL_ADD_STRING(device_get_sysctl_ctx(dev), 268 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), 269 OID_AUTO, "version", CTLFLAG_RD, 270 ver_str, 0, "Driver Version"); 271 272 qls_dbg_level = 0; 273 SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev), 274 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), 275 OID_AUTO, "debug", CTLFLAG_RW, 276 &qls_dbg_level, qls_dbg_level, "Debug Level"); 277 278 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 279 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), 280 OID_AUTO, "drvr_stats", 281 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, (void *)ha, 0, 282 qls_sysctl_get_drvr_stats, "I", "Driver Maintained Statistics"); 283 284 return; 285 } 286 287 static void 288 qls_watchdog(void *arg) 289 { 290 qla_host_t *ha = arg; 291 struct ifnet *ifp; 292 293 ifp = ha->ifp; 294 295 if (ha->flags.qla_watchdog_exit) { 296 ha->qla_watchdog_exited = 1; 297 return; 298 } 299 ha->qla_watchdog_exited = 0; 300 301 if (!ha->flags.qla_watchdog_pause) { 302 if (ha->qla_initiate_recovery) { 303 ha->qla_watchdog_paused = 1; 304 ha->qla_initiate_recovery = 0; 305 ha->err_inject = 0; 306 taskqueue_enqueue(ha->err_tq, &ha->err_task); 307 308 } else if ((ifp->if_snd.ifq_head != NULL) && QL_RUNNING(ifp)) { 309 taskqueue_enqueue(ha->tx_tq, &ha->tx_task); 310 } 311 312 ha->qla_watchdog_paused = 0; 313 } else { 314 ha->qla_watchdog_paused = 1; 315 } 316 317 ha->watchdog_ticks = (ha->watchdog_ticks + 1) % 1000; 318 callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS, 319 qls_watchdog, ha); 320 321 return; 322 } 323 324 /* 325 * Name: qls_pci_attach 326 * Function: attaches the device to the operating system 327 */ 328 static int 329 qls_pci_attach(device_t dev) 330 { 331 qla_host_t *ha = NULL; 332 int i; 333 334 QL_DPRINT2((dev, "%s: enter\n", __func__)); 335 336 if ((ha = device_get_softc(dev)) == NULL) { 337 device_printf(dev, "cannot get softc\n"); 338 return (ENOMEM); 339 } 340 341 memset(ha, 0, sizeof (qla_host_t)); 342 343 if (pci_get_device(dev) != PCI_DEVICE_QLOGIC_8000) { 344 device_printf(dev, "device is not QLE8000\n"); 345 return (ENXIO); 346 } 347 348 ha->pci_func = pci_get_function(dev); 349 350 ha->pci_dev = dev; 351 352 pci_enable_busmaster(dev); 353 354 ha->reg_rid = PCIR_BAR(1); 355 ha->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ha->reg_rid, 356 RF_ACTIVE); 357 358 if (ha->pci_reg == NULL) { 359 device_printf(dev, "unable to map any ports\n"); 360 goto qls_pci_attach_err; 361 } 362 363 ha->reg_rid1 = PCIR_BAR(3); 364 ha->pci_reg1 = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 365 &ha->reg_rid1, RF_ACTIVE); 366 367 if (ha->pci_reg1 == NULL) { 368 device_printf(dev, "unable to map any ports\n"); 369 goto qls_pci_attach_err; 370 } 371 372 mtx_init(&ha->hw_lock, "qla80xx_hw_lock", MTX_NETWORK_LOCK, MTX_DEF); 373 mtx_init(&ha->tx_lock, "qla80xx_tx_lock", MTX_NETWORK_LOCK, MTX_DEF); 374 375 qls_add_sysctls(ha); 376 qls_hw_add_sysctls(ha); 377 378 ha->flags.lock_init = 1; 379 380 ha->msix_count = pci_msix_count(dev); 381 382 if (ha->msix_count < qls_get_msix_count(ha)) { 383 device_printf(dev, "%s: msix_count[%d] not enough\n", __func__, 384 ha->msix_count); 385 goto qls_pci_attach_err; 386 } 387 388 ha->msix_count = qls_get_msix_count(ha); 389 390 device_printf(dev, "\n%s: ha %p pci_func 0x%x msix_count 0x%x" 391 " pci_reg %p pci_reg1 %p\n", __func__, ha, 392 ha->pci_func, ha->msix_count, ha->pci_reg, ha->pci_reg1); 393 394 if (pci_alloc_msix(dev, &ha->msix_count)) { 395 device_printf(dev, "%s: pci_alloc_msi[%d] failed\n", __func__, 396 ha->msix_count); 397 ha->msix_count = 0; 398 goto qls_pci_attach_err; 399 } 400 401 for (i = 0; i < ha->num_rx_rings; i++) { 402 ha->irq_vec[i].cq_idx = i; 403 ha->irq_vec[i].ha = ha; 404 ha->irq_vec[i].irq_rid = 1 + i; 405 406 ha->irq_vec[i].irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 407 &ha->irq_vec[i].irq_rid, 408 (RF_ACTIVE | RF_SHAREABLE)); 409 410 if (ha->irq_vec[i].irq == NULL) { 411 device_printf(dev, "could not allocate interrupt\n"); 412 goto qls_pci_attach_err; 413 } 414 415 if (bus_setup_intr(dev, ha->irq_vec[i].irq, 416 (INTR_TYPE_NET | INTR_MPSAFE), NULL, qls_isr, 417 &ha->irq_vec[i], &ha->irq_vec[i].handle)) { 418 device_printf(dev, 419 "could not setup interrupt\n"); 420 goto qls_pci_attach_err; 421 } 422 } 423 424 qls_rd_nic_params(ha); 425 426 /* allocate parent dma tag */ 427 if (qls_alloc_parent_dma_tag(ha)) { 428 device_printf(dev, "%s: qls_alloc_parent_dma_tag failed\n", 429 __func__); 430 goto qls_pci_attach_err; 431 } 432 433 /* alloc all dma buffers */ 434 if (qls_alloc_dma(ha)) { 435 device_printf(dev, "%s: qls_alloc_dma failed\n", __func__); 436 goto qls_pci_attach_err; 437 } 438 439 /* create the o.s ethernet interface */ 440 qls_init_ifnet(dev, ha); 441 442 ha->flags.qla_watchdog_active = 1; 443 ha->flags.qla_watchdog_pause = 1; 444 445 TASK_INIT(&ha->tx_task, 0, qls_tx_done, ha); 446 ha->tx_tq = taskqueue_create_fast("qla_txq", M_NOWAIT, 447 taskqueue_thread_enqueue, &ha->tx_tq); 448 taskqueue_start_threads(&ha->tx_tq, 1, PI_NET, "%s txq", 449 device_get_nameunit(ha->pci_dev)); 450 451 callout_init(&ha->tx_callout, 1); 452 ha->flags.qla_callout_init = 1; 453 454 /* create ioctl device interface */ 455 if (qls_make_cdev(ha)) { 456 device_printf(dev, "%s: qls_make_cdev failed\n", __func__); 457 goto qls_pci_attach_err; 458 } 459 460 callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS, 461 qls_watchdog, ha); 462 463 TASK_INIT(&ha->err_task, 0, qls_error_recovery, ha); 464 ha->err_tq = taskqueue_create_fast("qla_errq", M_NOWAIT, 465 taskqueue_thread_enqueue, &ha->err_tq); 466 taskqueue_start_threads(&ha->err_tq, 1, PI_NET, "%s errq", 467 device_get_nameunit(ha->pci_dev)); 468 469 QL_DPRINT2((dev, "%s: exit 0\n", __func__)); 470 return (0); 471 472 qls_pci_attach_err: 473 474 qls_release(ha); 475 476 QL_DPRINT2((dev, "%s: exit ENXIO\n", __func__)); 477 return (ENXIO); 478 } 479 480 /* 481 * Name: qls_pci_detach 482 * Function: Unhooks the device from the operating system 483 */ 484 static int 485 qls_pci_detach(device_t dev) 486 { 487 qla_host_t *ha = NULL; 488 struct ifnet *ifp; 489 490 QL_DPRINT2((dev, "%s: enter\n", __func__)); 491 492 if ((ha = device_get_softc(dev)) == NULL) { 493 device_printf(dev, "cannot get softc\n"); 494 return (ENOMEM); 495 } 496 497 ifp = ha->ifp; 498 499 (void)QLA_LOCK(ha, __func__, 0); 500 qls_stop(ha); 501 QLA_UNLOCK(ha, __func__); 502 503 qls_release(ha); 504 505 QL_DPRINT2((dev, "%s: exit\n", __func__)); 506 507 return (0); 508 } 509 510 /* 511 * Name: qls_release 512 * Function: Releases the resources allocated for the device 513 */ 514 static void 515 qls_release(qla_host_t *ha) 516 { 517 device_t dev; 518 int i; 519 520 dev = ha->pci_dev; 521 522 if (ha->err_tq) { 523 taskqueue_drain(ha->err_tq, &ha->err_task); 524 taskqueue_free(ha->err_tq); 525 } 526 527 if (ha->tx_tq) { 528 taskqueue_drain(ha->tx_tq, &ha->tx_task); 529 taskqueue_free(ha->tx_tq); 530 } 531 532 qls_del_cdev(ha); 533 534 if (ha->flags.qla_watchdog_active) { 535 ha->flags.qla_watchdog_exit = 1; 536 537 while (ha->qla_watchdog_exited == 0) 538 qls_mdelay(__func__, 1); 539 } 540 541 if (ha->flags.qla_callout_init) 542 callout_stop(&ha->tx_callout); 543 544 if (ha->ifp != NULL) 545 ether_ifdetach(ha->ifp); 546 547 qls_free_dma(ha); 548 qls_free_parent_dma_tag(ha); 549 550 for (i = 0; i < ha->num_rx_rings; i++) { 551 if (ha->irq_vec[i].handle) { 552 (void)bus_teardown_intr(dev, ha->irq_vec[i].irq, 553 ha->irq_vec[i].handle); 554 } 555 556 if (ha->irq_vec[i].irq) { 557 (void)bus_release_resource(dev, SYS_RES_IRQ, 558 ha->irq_vec[i].irq_rid, 559 ha->irq_vec[i].irq); 560 } 561 } 562 563 if (ha->msix_count) 564 pci_release_msi(dev); 565 566 if (ha->flags.lock_init) { 567 mtx_destroy(&ha->tx_lock); 568 mtx_destroy(&ha->hw_lock); 569 } 570 571 if (ha->pci_reg) 572 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid, 573 ha->pci_reg); 574 575 if (ha->pci_reg1) 576 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid1, 577 ha->pci_reg1); 578 } 579 580 /* 581 * DMA Related Functions 582 */ 583 584 static void 585 qls_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 586 { 587 *((bus_addr_t *)arg) = 0; 588 589 if (error) { 590 printf("%s: bus_dmamap_load failed (%d)\n", __func__, error); 591 return; 592 } 593 594 *((bus_addr_t *)arg) = segs[0].ds_addr; 595 596 return; 597 } 598 599 int 600 qls_alloc_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf) 601 { 602 int ret = 0; 603 device_t dev; 604 bus_addr_t b_addr; 605 606 dev = ha->pci_dev; 607 608 QL_DPRINT2((dev, "%s: enter\n", __func__)); 609 610 ret = bus_dma_tag_create( 611 ha->parent_tag,/* parent */ 612 dma_buf->alignment, 613 ((bus_size_t)(1ULL << 32)),/* boundary */ 614 BUS_SPACE_MAXADDR, /* lowaddr */ 615 BUS_SPACE_MAXADDR, /* highaddr */ 616 NULL, NULL, /* filter, filterarg */ 617 dma_buf->size, /* maxsize */ 618 1, /* nsegments */ 619 dma_buf->size, /* maxsegsize */ 620 0, /* flags */ 621 NULL, NULL, /* lockfunc, lockarg */ 622 &dma_buf->dma_tag); 623 624 if (ret) { 625 device_printf(dev, "%s: could not create dma tag\n", __func__); 626 goto qls_alloc_dmabuf_exit; 627 } 628 ret = bus_dmamem_alloc(dma_buf->dma_tag, 629 (void **)&dma_buf->dma_b, 630 (BUS_DMA_ZERO | BUS_DMA_COHERENT | BUS_DMA_NOWAIT), 631 &dma_buf->dma_map); 632 if (ret) { 633 bus_dma_tag_destroy(dma_buf->dma_tag); 634 device_printf(dev, "%s: bus_dmamem_alloc failed\n", __func__); 635 goto qls_alloc_dmabuf_exit; 636 } 637 638 ret = bus_dmamap_load(dma_buf->dma_tag, 639 dma_buf->dma_map, 640 dma_buf->dma_b, 641 dma_buf->size, 642 qls_dmamap_callback, 643 &b_addr, BUS_DMA_NOWAIT); 644 645 if (ret || !b_addr) { 646 bus_dma_tag_destroy(dma_buf->dma_tag); 647 bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b, 648 dma_buf->dma_map); 649 ret = -1; 650 goto qls_alloc_dmabuf_exit; 651 } 652 653 dma_buf->dma_addr = b_addr; 654 655 qls_alloc_dmabuf_exit: 656 QL_DPRINT2((dev, "%s: exit ret 0x%08x tag %p map %p b %p sz 0x%x\n", 657 __func__, ret, (void *)dma_buf->dma_tag, 658 (void *)dma_buf->dma_map, (void *)dma_buf->dma_b, 659 dma_buf->size)); 660 661 return ret; 662 } 663 664 void 665 qls_free_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf) 666 { 667 bus_dmamap_unload(dma_buf->dma_tag, dma_buf->dma_map); 668 bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b, dma_buf->dma_map); 669 bus_dma_tag_destroy(dma_buf->dma_tag); 670 } 671 672 static int 673 qls_alloc_parent_dma_tag(qla_host_t *ha) 674 { 675 int ret; 676 device_t dev; 677 678 dev = ha->pci_dev; 679 680 /* 681 * Allocate parent DMA Tag 682 */ 683 ret = bus_dma_tag_create( 684 bus_get_dma_tag(dev), /* parent */ 685 1,((bus_size_t)(1ULL << 32)),/* alignment, boundary */ 686 BUS_SPACE_MAXADDR, /* lowaddr */ 687 BUS_SPACE_MAXADDR, /* highaddr */ 688 NULL, NULL, /* filter, filterarg */ 689 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */ 690 0, /* nsegments */ 691 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */ 692 0, /* flags */ 693 NULL, NULL, /* lockfunc, lockarg */ 694 &ha->parent_tag); 695 696 if (ret) { 697 device_printf(dev, "%s: could not create parent dma tag\n", 698 __func__); 699 return (-1); 700 } 701 702 ha->flags.parent_tag = 1; 703 704 return (0); 705 } 706 707 static void 708 qls_free_parent_dma_tag(qla_host_t *ha) 709 { 710 if (ha->flags.parent_tag) { 711 bus_dma_tag_destroy(ha->parent_tag); 712 ha->flags.parent_tag = 0; 713 } 714 } 715 716 /* 717 * Name: qls_init_ifnet 718 * Function: Creates the Network Device Interface and Registers it with the O.S 719 */ 720 721 static void 722 qls_init_ifnet(device_t dev, qla_host_t *ha) 723 { 724 struct ifnet *ifp; 725 726 QL_DPRINT2((dev, "%s: enter\n", __func__)); 727 728 ifp = ha->ifp = if_alloc(IFT_ETHER); 729 730 if (ifp == NULL) 731 panic("%s: cannot if_alloc()\n", device_get_nameunit(dev)); 732 733 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 734 ifp->if_baudrate = IF_Gbps(10); 735 ifp->if_init = qls_init; 736 ifp->if_softc = ha; 737 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 738 ifp->if_ioctl = qls_ioctl; 739 ifp->if_start = qls_start; 740 741 IFQ_SET_MAXLEN(&ifp->if_snd, qls_get_ifq_snd_maxlen(ha)); 742 ifp->if_snd.ifq_drv_maxlen = qls_get_ifq_snd_maxlen(ha); 743 IFQ_SET_READY(&ifp->if_snd); 744 745 ha->max_frame_size = ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN; 746 if (ha->max_frame_size <= MCLBYTES) { 747 ha->msize = MCLBYTES; 748 } else if (ha->max_frame_size <= MJUMPAGESIZE) { 749 ha->msize = MJUMPAGESIZE; 750 } else 751 ha->msize = MJUM9BYTES; 752 753 ether_ifattach(ifp, qls_get_mac_addr(ha)); 754 755 ifp->if_capabilities = IFCAP_JUMBO_MTU; 756 757 ifp->if_capabilities |= IFCAP_HWCSUM; 758 ifp->if_capabilities |= IFCAP_VLAN_MTU; 759 760 ifp->if_capabilities |= IFCAP_TSO4; 761 ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING; 762 ifp->if_capabilities |= IFCAP_VLAN_HWTSO; 763 ifp->if_capabilities |= IFCAP_LINKSTATE; 764 765 ifp->if_capenable = ifp->if_capabilities; 766 767 ifp->if_hdrlen = sizeof(struct ether_vlan_header); 768 769 ifmedia_init(&ha->media, IFM_IMASK, qls_media_change, qls_media_status); 770 771 ifmedia_add(&ha->media, (IFM_ETHER | qls_get_optics(ha) | IFM_FDX), 0, 772 NULL); 773 ifmedia_add(&ha->media, (IFM_ETHER | IFM_AUTO), 0, NULL); 774 775 ifmedia_set(&ha->media, (IFM_ETHER | IFM_AUTO)); 776 777 QL_DPRINT2((dev, "%s: exit\n", __func__)); 778 779 return; 780 } 781 782 static void 783 qls_init_locked(qla_host_t *ha) 784 { 785 struct ifnet *ifp = ha->ifp; 786 787 qls_stop(ha); 788 789 qls_flush_xmt_bufs(ha); 790 791 if (qls_alloc_rcv_bufs(ha) != 0) 792 return; 793 794 if (qls_config_lro(ha)) 795 return; 796 797 bcopy(IF_LLADDR(ha->ifp), ha->mac_addr, ETHER_ADDR_LEN); 798 799 ifp->if_hwassist = CSUM_IP; 800 ifp->if_hwassist |= CSUM_TCP; 801 ifp->if_hwassist |= CSUM_UDP; 802 ifp->if_hwassist |= CSUM_TSO; 803 804 if (qls_init_hw_if(ha) == 0) { 805 ifp = ha->ifp; 806 ifp->if_drv_flags |= IFF_DRV_RUNNING; 807 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 808 ha->flags.qla_watchdog_pause = 0; 809 } 810 811 return; 812 } 813 814 static void 815 qls_init(void *arg) 816 { 817 qla_host_t *ha; 818 819 ha = (qla_host_t *)arg; 820 821 QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__)); 822 823 (void)QLA_LOCK(ha, __func__, 0); 824 qls_init_locked(ha); 825 QLA_UNLOCK(ha, __func__); 826 827 QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__)); 828 } 829 830 static u_int 831 qls_copy_maddr(void *arg, struct sockaddr_dl *sdl, u_int mcnt) 832 { 833 uint8_t *mta = arg; 834 835 if (mcnt == Q8_MAX_NUM_MULTICAST_ADDRS) 836 return (0); 837 838 bcopy(LLADDR(sdl), &mta[mcnt * Q8_MAC_ADDR_LEN], Q8_MAC_ADDR_LEN); 839 840 return (1); 841 } 842 843 static void 844 qls_set_multi(qla_host_t *ha, uint32_t add_multi) 845 { 846 uint8_t mta[Q8_MAX_NUM_MULTICAST_ADDRS * Q8_MAC_ADDR_LEN]; 847 struct ifnet *ifp = ha->ifp; 848 int mcnt; 849 850 mcnt = if_foreach_llmaddr(ifp, qls_copy_maddr, mta); 851 852 if (QLA_LOCK(ha, __func__, 1) == 0) { 853 qls_hw_set_multi(ha, mta, mcnt, add_multi); 854 QLA_UNLOCK(ha, __func__); 855 } 856 857 return; 858 } 859 860 static int 861 qls_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 862 { 863 int ret = 0; 864 struct ifreq *ifr = (struct ifreq *)data; 865 struct ifaddr *ifa = (struct ifaddr *)data; 866 qla_host_t *ha; 867 868 ha = (qla_host_t *)ifp->if_softc; 869 870 switch (cmd) { 871 case SIOCSIFADDR: 872 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFADDR (0x%lx)\n", 873 __func__, cmd)); 874 875 if (ifa->ifa_addr->sa_family == AF_INET) { 876 ifp->if_flags |= IFF_UP; 877 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 878 (void)QLA_LOCK(ha, __func__, 0); 879 qls_init_locked(ha); 880 QLA_UNLOCK(ha, __func__); 881 } 882 QL_DPRINT4((ha->pci_dev, 883 "%s: SIOCSIFADDR (0x%lx) ipv4 [0x%08x]\n", 884 __func__, cmd, 885 ntohl(IA_SIN(ifa)->sin_addr.s_addr))); 886 887 arp_ifinit(ifp, ifa); 888 } else { 889 ether_ioctl(ifp, cmd, data); 890 } 891 break; 892 893 case SIOCSIFMTU: 894 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFMTU (0x%lx)\n", 895 __func__, cmd)); 896 897 if (ifr->ifr_mtu > QLA_MAX_MTU) { 898 ret = EINVAL; 899 } else { 900 (void) QLA_LOCK(ha, __func__, 0); 901 902 ifp->if_mtu = ifr->ifr_mtu; 903 ha->max_frame_size = 904 ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN; 905 906 QLA_UNLOCK(ha, __func__); 907 908 if (ret) 909 ret = EINVAL; 910 } 911 912 break; 913 914 case SIOCSIFFLAGS: 915 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFFLAGS (0x%lx)\n", 916 __func__, cmd)); 917 918 (void)QLA_LOCK(ha, __func__, 0); 919 920 if (ifp->if_flags & IFF_UP) { 921 if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) { 922 if ((ifp->if_flags ^ ha->if_flags) & 923 IFF_PROMISC) { 924 ret = qls_set_promisc(ha); 925 } else if ((ifp->if_flags ^ ha->if_flags) & 926 IFF_ALLMULTI) { 927 ret = qls_set_allmulti(ha); 928 } 929 } else { 930 ha->max_frame_size = ifp->if_mtu + 931 ETHER_HDR_LEN + ETHER_CRC_LEN; 932 qls_init_locked(ha); 933 } 934 } else { 935 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 936 qls_stop(ha); 937 ha->if_flags = ifp->if_flags; 938 } 939 940 QLA_UNLOCK(ha, __func__); 941 break; 942 943 case SIOCADDMULTI: 944 QL_DPRINT4((ha->pci_dev, 945 "%s: %s (0x%lx)\n", __func__, "SIOCADDMULTI", cmd)); 946 947 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 948 qls_set_multi(ha, 1); 949 } 950 break; 951 952 case SIOCDELMULTI: 953 QL_DPRINT4((ha->pci_dev, 954 "%s: %s (0x%lx)\n", __func__, "SIOCDELMULTI", cmd)); 955 956 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 957 qls_set_multi(ha, 0); 958 } 959 break; 960 961 case SIOCSIFMEDIA: 962 case SIOCGIFMEDIA: 963 QL_DPRINT4((ha->pci_dev, 964 "%s: SIOCSIFMEDIA/SIOCGIFMEDIA (0x%lx)\n", 965 __func__, cmd)); 966 ret = ifmedia_ioctl(ifp, ifr, &ha->media, cmd); 967 break; 968 969 case SIOCSIFCAP: 970 { 971 int mask = ifr->ifr_reqcap ^ ifp->if_capenable; 972 973 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFCAP (0x%lx)\n", 974 __func__, cmd)); 975 976 if (mask & IFCAP_HWCSUM) 977 ifp->if_capenable ^= IFCAP_HWCSUM; 978 if (mask & IFCAP_TSO4) 979 ifp->if_capenable ^= IFCAP_TSO4; 980 if (mask & IFCAP_VLAN_HWTAGGING) 981 ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING; 982 if (mask & IFCAP_VLAN_HWTSO) 983 ifp->if_capenable ^= IFCAP_VLAN_HWTSO; 984 985 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) 986 qls_init(ha); 987 988 VLAN_CAPABILITIES(ifp); 989 break; 990 } 991 992 default: 993 QL_DPRINT4((ha->pci_dev, "%s: default (0x%lx)\n", 994 __func__, cmd)); 995 ret = ether_ioctl(ifp, cmd, data); 996 break; 997 } 998 999 return (ret); 1000 } 1001 1002 static int 1003 qls_media_change(struct ifnet *ifp) 1004 { 1005 qla_host_t *ha; 1006 struct ifmedia *ifm; 1007 int ret = 0; 1008 1009 ha = (qla_host_t *)ifp->if_softc; 1010 1011 QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__)); 1012 1013 ifm = &ha->media; 1014 1015 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 1016 ret = EINVAL; 1017 1018 QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__)); 1019 1020 return (ret); 1021 } 1022 1023 static void 1024 qls_media_status(struct ifnet *ifp, struct ifmediareq *ifmr) 1025 { 1026 qla_host_t *ha; 1027 1028 ha = (qla_host_t *)ifp->if_softc; 1029 1030 QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__)); 1031 1032 ifmr->ifm_status = IFM_AVALID; 1033 ifmr->ifm_active = IFM_ETHER; 1034 1035 qls_update_link_state(ha); 1036 if (ha->link_up) { 1037 ifmr->ifm_status |= IFM_ACTIVE; 1038 ifmr->ifm_active |= (IFM_FDX | qls_get_optics(ha)); 1039 } 1040 1041 QL_DPRINT2((ha->pci_dev, "%s: exit (%s)\n", __func__,\ 1042 (ha->link_up ? "link_up" : "link_down"))); 1043 1044 return; 1045 } 1046 1047 static void 1048 qls_start(struct ifnet *ifp) 1049 { 1050 int i, ret = 0; 1051 struct mbuf *m_head; 1052 qla_host_t *ha = (qla_host_t *)ifp->if_softc; 1053 1054 QL_DPRINT8((ha->pci_dev, "%s: enter\n", __func__)); 1055 1056 if (!mtx_trylock(&ha->tx_lock)) { 1057 QL_DPRINT8((ha->pci_dev, 1058 "%s: mtx_trylock(&ha->tx_lock) failed\n", __func__)); 1059 return; 1060 } 1061 1062 if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) == 1063 IFF_DRV_RUNNING) { 1064 for (i = 0; i < ha->num_tx_rings; i++) { 1065 ret |= qls_hw_tx_done(ha, i); 1066 } 1067 1068 if (ret == 0) 1069 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1070 } 1071 1072 if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) != 1073 IFF_DRV_RUNNING) { 1074 QL_DPRINT8((ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__)); 1075 QLA_TX_UNLOCK(ha); 1076 return; 1077 } 1078 1079 if (!ha->link_up) { 1080 qls_update_link_state(ha); 1081 if (!ha->link_up) { 1082 QL_DPRINT8((ha->pci_dev, "%s: link down\n", __func__)); 1083 QLA_TX_UNLOCK(ha); 1084 return; 1085 } 1086 } 1087 1088 while (ifp->if_snd.ifq_head != NULL) { 1089 IF_DEQUEUE(&ifp->if_snd, m_head); 1090 1091 if (m_head == NULL) { 1092 QL_DPRINT8((ha->pci_dev, "%s: m_head == NULL\n", 1093 __func__)); 1094 break; 1095 } 1096 1097 if (qls_send(ha, &m_head)) { 1098 if (m_head == NULL) 1099 break; 1100 QL_DPRINT8((ha->pci_dev, "%s: PREPEND\n", __func__)); 1101 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1102 IF_PREPEND(&ifp->if_snd, m_head); 1103 break; 1104 } 1105 /* Send a copy of the frame to the BPF listener */ 1106 ETHER_BPF_MTAP(ifp, m_head); 1107 } 1108 1109 QLA_TX_UNLOCK(ha); 1110 QL_DPRINT8((ha->pci_dev, "%s: exit\n", __func__)); 1111 return; 1112 } 1113 1114 static int 1115 qls_send(qla_host_t *ha, struct mbuf **m_headp) 1116 { 1117 bus_dma_segment_t segs[QLA_MAX_SEGMENTS]; 1118 bus_dmamap_t map; 1119 int nsegs; 1120 int ret = -1; 1121 uint32_t tx_idx; 1122 struct mbuf *m_head = *m_headp; 1123 uint32_t txr_idx = 0; 1124 1125 QL_DPRINT8((ha->pci_dev, "%s: enter\n", __func__)); 1126 1127 /* check if flowid is set */ 1128 if (M_HASHTYPE_GET(m_head) != M_HASHTYPE_NONE) 1129 txr_idx = m_head->m_pkthdr.flowid & (ha->num_tx_rings - 1); 1130 1131 tx_idx = ha->tx_ring[txr_idx].txr_next; 1132 1133 map = ha->tx_ring[txr_idx].tx_buf[tx_idx].map; 1134 1135 ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head, segs, &nsegs, 1136 BUS_DMA_NOWAIT); 1137 1138 if (ret == EFBIG) { 1139 struct mbuf *m; 1140 1141 QL_DPRINT8((ha->pci_dev, "%s: EFBIG [%d]\n", __func__, 1142 m_head->m_pkthdr.len)); 1143 1144 m = m_defrag(m_head, M_NOWAIT); 1145 if (m == NULL) { 1146 ha->err_tx_defrag++; 1147 m_freem(m_head); 1148 *m_headp = NULL; 1149 device_printf(ha->pci_dev, 1150 "%s: m_defrag() = NULL [%d]\n", 1151 __func__, ret); 1152 return (ENOBUFS); 1153 } 1154 m_head = m; 1155 *m_headp = m_head; 1156 1157 if ((ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head, 1158 segs, &nsegs, BUS_DMA_NOWAIT))) { 1159 ha->err_tx_dmamap_load++; 1160 1161 device_printf(ha->pci_dev, 1162 "%s: bus_dmamap_load_mbuf_sg failed0[%d, %d]\n", 1163 __func__, ret, m_head->m_pkthdr.len); 1164 1165 if (ret != ENOMEM) { 1166 m_freem(m_head); 1167 *m_headp = NULL; 1168 } 1169 return (ret); 1170 } 1171 1172 } else if (ret) { 1173 ha->err_tx_dmamap_load++; 1174 1175 device_printf(ha->pci_dev, 1176 "%s: bus_dmamap_load_mbuf_sg failed1[%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 QL_ASSERT(ha, (nsegs != 0), ("qls_send: empty packet")); 1187 1188 bus_dmamap_sync(ha->tx_tag, map, BUS_DMASYNC_PREWRITE); 1189 1190 if (!(ret = qls_hw_send(ha, segs, nsegs, tx_idx, m_head, txr_idx))) { 1191 ha->tx_ring[txr_idx].count++; 1192 ha->tx_ring[txr_idx].tx_buf[tx_idx].m_head = m_head; 1193 ha->tx_ring[txr_idx].tx_buf[tx_idx].map = map; 1194 } else { 1195 if (ret == EINVAL) { 1196 if (m_head) 1197 m_freem(m_head); 1198 *m_headp = NULL; 1199 } 1200 } 1201 1202 QL_DPRINT8((ha->pci_dev, "%s: exit\n", __func__)); 1203 return (ret); 1204 } 1205 1206 static void 1207 qls_stop(qla_host_t *ha) 1208 { 1209 struct ifnet *ifp = ha->ifp; 1210 device_t dev; 1211 1212 dev = ha->pci_dev; 1213 1214 ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING); 1215 1216 ha->flags.qla_watchdog_pause = 1; 1217 1218 while (!ha->qla_watchdog_paused) 1219 qls_mdelay(__func__, 1); 1220 1221 qls_del_hw_if(ha); 1222 1223 qls_free_lro(ha); 1224 1225 qls_flush_xmt_bufs(ha); 1226 qls_free_rcv_bufs(ha); 1227 1228 return; 1229 } 1230 1231 /* 1232 * Buffer Management Functions for Transmit and Receive Rings 1233 */ 1234 /* 1235 * Release mbuf after it sent on the wire 1236 */ 1237 static void 1238 qls_flush_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb) 1239 { 1240 QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__)); 1241 1242 if (txb->m_head) { 1243 bus_dmamap_unload(ha->tx_tag, txb->map); 1244 1245 m_freem(txb->m_head); 1246 txb->m_head = NULL; 1247 } 1248 1249 QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__)); 1250 } 1251 1252 static void 1253 qls_flush_xmt_bufs(qla_host_t *ha) 1254 { 1255 int i, j; 1256 1257 for (j = 0; j < ha->num_tx_rings; j++) { 1258 for (i = 0; i < NUM_TX_DESCRIPTORS; i++) 1259 qls_flush_tx_buf(ha, &ha->tx_ring[j].tx_buf[i]); 1260 } 1261 1262 return; 1263 } 1264 1265 static int 1266 qls_alloc_rcv_mbufs(qla_host_t *ha, int r) 1267 { 1268 int i, j, ret = 0; 1269 qla_rx_buf_t *rxb; 1270 qla_rx_ring_t *rx_ring; 1271 volatile q81_bq_addr_e_t *sbq_e; 1272 1273 rx_ring = &ha->rx_ring[r]; 1274 1275 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) { 1276 rxb = &rx_ring->rx_buf[i]; 1277 1278 ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT, &rxb->map); 1279 1280 if (ret) { 1281 device_printf(ha->pci_dev, 1282 "%s: dmamap[%d, %d] failed\n", __func__, r, i); 1283 1284 for (j = 0; j < i; j++) { 1285 rxb = &rx_ring->rx_buf[j]; 1286 bus_dmamap_destroy(ha->rx_tag, rxb->map); 1287 } 1288 goto qls_alloc_rcv_mbufs_err; 1289 } 1290 } 1291 1292 rx_ring = &ha->rx_ring[r]; 1293 1294 sbq_e = rx_ring->sbq_vaddr; 1295 1296 rxb = &rx_ring->rx_buf[0]; 1297 1298 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) { 1299 if (!(ret = qls_get_mbuf(ha, rxb, NULL))) { 1300 /* 1301 * set the physical address in the 1302 * corresponding descriptor entry in the 1303 * receive ring/queue for the hba 1304 */ 1305 1306 sbq_e->addr_lo = rxb->paddr & 0xFFFFFFFF; 1307 sbq_e->addr_hi = (rxb->paddr >> 32) & 0xFFFFFFFF; 1308 1309 } else { 1310 device_printf(ha->pci_dev, 1311 "%s: qls_get_mbuf [%d, %d] failed\n", 1312 __func__, r, i); 1313 bus_dmamap_destroy(ha->rx_tag, rxb->map); 1314 goto qls_alloc_rcv_mbufs_err; 1315 } 1316 1317 rxb++; 1318 sbq_e++; 1319 } 1320 return 0; 1321 1322 qls_alloc_rcv_mbufs_err: 1323 return (-1); 1324 } 1325 1326 static void 1327 qls_free_rcv_bufs(qla_host_t *ha) 1328 { 1329 int i, r; 1330 qla_rx_buf_t *rxb; 1331 qla_rx_ring_t *rxr; 1332 1333 for (r = 0; r < ha->num_rx_rings; r++) { 1334 rxr = &ha->rx_ring[r]; 1335 1336 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) { 1337 rxb = &rxr->rx_buf[i]; 1338 1339 if (rxb->m_head != NULL) { 1340 bus_dmamap_unload(ha->rx_tag, rxb->map); 1341 bus_dmamap_destroy(ha->rx_tag, rxb->map); 1342 m_freem(rxb->m_head); 1343 } 1344 } 1345 bzero(rxr->rx_buf, (sizeof(qla_rx_buf_t) * NUM_RX_DESCRIPTORS)); 1346 } 1347 return; 1348 } 1349 1350 static int 1351 qls_alloc_rcv_bufs(qla_host_t *ha) 1352 { 1353 int r, ret = 0; 1354 qla_rx_ring_t *rxr; 1355 1356 for (r = 0; r < ha->num_rx_rings; r++) { 1357 rxr = &ha->rx_ring[r]; 1358 bzero(rxr->rx_buf, (sizeof(qla_rx_buf_t) * NUM_RX_DESCRIPTORS)); 1359 } 1360 1361 for (r = 0; r < ha->num_rx_rings; r++) { 1362 ret = qls_alloc_rcv_mbufs(ha, r); 1363 1364 if (ret) 1365 qls_free_rcv_bufs(ha); 1366 } 1367 1368 return (ret); 1369 } 1370 1371 int 1372 qls_get_mbuf(qla_host_t *ha, qla_rx_buf_t *rxb, struct mbuf *nmp) 1373 { 1374 struct mbuf *mp = nmp; 1375 struct ifnet *ifp; 1376 int ret = 0; 1377 uint32_t offset; 1378 bus_dma_segment_t segs[1]; 1379 int nsegs; 1380 1381 QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__)); 1382 1383 ifp = ha->ifp; 1384 1385 if (mp == NULL) { 1386 mp = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, ha->msize); 1387 1388 if (mp == NULL) { 1389 if (ha->msize == MCLBYTES) 1390 ha->err_m_getcl++; 1391 else 1392 ha->err_m_getjcl++; 1393 1394 ret = ENOBUFS; 1395 device_printf(ha->pci_dev, 1396 "%s: m_getcl failed\n", __func__); 1397 goto exit_qls_get_mbuf; 1398 } 1399 mp->m_len = mp->m_pkthdr.len = ha->msize; 1400 } else { 1401 mp->m_len = mp->m_pkthdr.len = ha->msize; 1402 mp->m_data = mp->m_ext.ext_buf; 1403 mp->m_next = NULL; 1404 } 1405 1406 /* align the receive buffers to 8 byte boundary */ 1407 offset = (uint32_t)((unsigned long long)mp->m_data & 0x7ULL); 1408 if (offset) { 1409 offset = 8 - offset; 1410 m_adj(mp, offset); 1411 } 1412 1413 /* 1414 * Using memory from the mbuf cluster pool, invoke the bus_dma 1415 * machinery to arrange the memory mapping. 1416 */ 1417 ret = bus_dmamap_load_mbuf_sg(ha->rx_tag, rxb->map, 1418 mp, segs, &nsegs, BUS_DMA_NOWAIT); 1419 rxb->paddr = segs[0].ds_addr; 1420 1421 if (ret || !rxb->paddr || (nsegs != 1)) { 1422 m_freem(mp); 1423 rxb->m_head = NULL; 1424 device_printf(ha->pci_dev, 1425 "%s: bus_dmamap_load failed[%d, 0x%016llx, %d]\n", 1426 __func__, ret, (long long unsigned int)rxb->paddr, 1427 nsegs); 1428 ret = -1; 1429 goto exit_qls_get_mbuf; 1430 } 1431 rxb->m_head = mp; 1432 bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_PREREAD); 1433 1434 exit_qls_get_mbuf: 1435 QL_DPRINT2((ha->pci_dev, "%s: exit ret = 0x%08x\n", __func__, ret)); 1436 return (ret); 1437 } 1438 1439 static void 1440 qls_tx_done(void *context, int pending) 1441 { 1442 qla_host_t *ha = context; 1443 struct ifnet *ifp; 1444 1445 ifp = ha->ifp; 1446 1447 if (!ifp) 1448 return; 1449 1450 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 1451 QL_DPRINT8((ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__)); 1452 return; 1453 } 1454 1455 qls_start(ha->ifp); 1456 return; 1457 } 1458 1459 static int 1460 qls_config_lro(qla_host_t *ha) 1461 { 1462 int i; 1463 struct lro_ctrl *lro; 1464 1465 for (i = 0; i < ha->num_rx_rings; i++) { 1466 lro = &ha->rx_ring[i].lro; 1467 if (tcp_lro_init(lro)) { 1468 device_printf(ha->pci_dev, "%s: tcp_lro_init failed\n", 1469 __func__); 1470 return (-1); 1471 } 1472 lro->ifp = ha->ifp; 1473 } 1474 ha->flags.lro_init = 1; 1475 1476 QL_DPRINT2((ha->pci_dev, "%s: LRO initialized\n", __func__)); 1477 return (0); 1478 } 1479 1480 static void 1481 qls_free_lro(qla_host_t *ha) 1482 { 1483 int i; 1484 struct lro_ctrl *lro; 1485 1486 if (!ha->flags.lro_init) 1487 return; 1488 1489 for (i = 0; i < ha->num_rx_rings; i++) { 1490 lro = &ha->rx_ring[i].lro; 1491 tcp_lro_free(lro); 1492 } 1493 ha->flags.lro_init = 0; 1494 } 1495 1496 static void 1497 qls_error_recovery(void *context, int pending) 1498 { 1499 qla_host_t *ha = context; 1500 1501 qls_init(ha); 1502 1503 return; 1504 }
Cache object: cdb45391c2d39e7e9b2d8dc6747f3bd7
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