sys/dev/qlxgb/qla_os.c

   1 /*
   2  * Copyright (c) 2010-2011 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: qla_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 #include "qla_os.h"
  37 #include "qla_reg.h"
  38 #include "qla_hw.h"
  39 #include "qla_def.h"
  40 #include "qla_inline.h"
  41 #include "qla_ver.h"
  42 #include "qla_glbl.h"
  43 #include "qla_dbg.h"
  44
  45 /*
  46  * Some PCI Configuration Space Related Defines
  47  */
  48
  49 #ifndef PCI_VENDOR_QLOGIC
  50 #define PCI_VENDOR_QLOGIC       0x1077
  51 #endif
  52
  53 #ifndef PCI_PRODUCT_QLOGIC_ISP8020
  54 #define PCI_PRODUCT_QLOGIC_ISP8020      0x8020
  55 #endif
  56
  57 #define PCI_QLOGIC_ISP8020 \
  58         ((PCI_PRODUCT_QLOGIC_ISP8020 << 16) | PCI_VENDOR_QLOGIC)
  59
  60 /*
  61  * static functions
  62  */
  63 static int qla_alloc_parent_dma_tag(qla_host_t *ha);
  64 static void qla_free_parent_dma_tag(qla_host_t *ha);
  65 static int qla_alloc_xmt_bufs(qla_host_t *ha);
  66 static void qla_free_xmt_bufs(qla_host_t *ha);
  67 static int qla_alloc_rcv_bufs(qla_host_t *ha);
  68 static void qla_free_rcv_bufs(qla_host_t *ha);
  69
  70 static void qla_init_ifnet(device_t dev, qla_host_t *ha);
  71 static int qla_sysctl_get_stats(SYSCTL_HANDLER_ARGS);
  72 static void qla_release(qla_host_t *ha);
  73 static void qla_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs,
  74                 int error);
  75 static void qla_stop(qla_host_t *ha);
  76 static int qla_send(qla_host_t *ha, struct mbuf **m_headp);
  77 static void qla_tx_done(void *context, int pending);
  78
  79 /*
  80  * Hooks to the Operating Systems
  81  */
  82 static int qla_pci_probe (device_t);
  83 static int qla_pci_attach (device_t);
  84 static int qla_pci_detach (device_t);
  85
  86 static void qla_init(void *arg);
  87 static int qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data);
  88 static int qla_media_change(struct ifnet *ifp);
  89 static void qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr);
  90
  91 static device_method_t qla_pci_methods[] = {
  92         /* Device interface */
  93         DEVMETHOD(device_probe, qla_pci_probe),
  94         DEVMETHOD(device_attach, qla_pci_attach),
  95         DEVMETHOD(device_detach, qla_pci_detach),
  96         { 0, 0 }
  97 };
  98
  99 static driver_t qla_pci_driver = {
 100         "ql", qla_pci_methods, sizeof (qla_host_t),
 101 };
 102
 103 static devclass_t qla80xx_devclass;
 104
 105 DRIVER_MODULE(qla80xx, pci, qla_pci_driver, qla80xx_devclass, 0, 0);
 106
 107 MODULE_DEPEND(qla80xx, pci, 1, 1, 1);
 108 MODULE_DEPEND(qla80xx, ether, 1, 1, 1);
 109
 110 MALLOC_DEFINE(M_QLA8XXXBUF, "qla80xxbuf", "Buffers for qla80xx driver");
 111
 112 uint32_t std_replenish = 8;
 113 uint32_t jumbo_replenish = 2;
 114 uint32_t rcv_pkt_thres = 128;
 115 uint32_t rcv_pkt_thres_d = 32;
 116 uint32_t snd_pkt_thres = 16;
 117 uint32_t free_pkt_thres = (NUM_TX_DESCRIPTORS / 2);
 118
 119 static char dev_str[64];
 120
 121 /*
 122  * Name:        qla_pci_probe
 123  * Function:    Validate the PCI device to be a QLA80XX device
 124  */
 125 static int
 126 qla_pci_probe(device_t dev)
 127 {
 128         switch ((pci_get_device(dev) << 16) | (pci_get_vendor(dev))) {
 129         case PCI_QLOGIC_ISP8020:
 130                 snprintf(dev_str, sizeof(dev_str), "%s v%d.%d.%d",
 131                         "Qlogic ISP 80xx PCI CNA Adapter-Ethernet Function",
 132                         QLA_VERSION_MAJOR, QLA_VERSION_MINOR,
 133                         QLA_VERSION_BUILD);
 134                 device_set_desc(dev, dev_str);
 135                 break;
 136         default:
 137                 return (ENXIO);
 138         }
 139
 140         if (bootverbose)
 141                 printf("%s: %s\n ", __func__, dev_str);
 142
 143         return (BUS_PROBE_DEFAULT);
 144 }
 145
 146 static void
 147 qla_add_sysctls(qla_host_t *ha)
 148 {
 149         device_t dev = ha->pci_dev;
 150
 151         SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
 152                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 153                 OID_AUTO, "stats", CTLTYPE_INT | CTLFLAG_RD,
 154                 (void *)ha, 0,
 155                 qla_sysctl_get_stats, "I", "Statistics");
 156
 157         dbg_level = 0;
 158         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 159                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 160                 OID_AUTO, "debug", CTLFLAG_RW,
 161                 &dbg_level, dbg_level, "Debug Level");
 162
 163         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 164                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 165                 OID_AUTO, "std_replenish", CTLFLAG_RW,
 166                 &std_replenish, std_replenish,
 167                 "Threshold for Replenishing Standard Frames");
 168
 169         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 170                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 171                 OID_AUTO, "jumbo_replenish", CTLFLAG_RW,
 172                 &jumbo_replenish, jumbo_replenish,
 173                 "Threshold for Replenishing Jumbo Frames");
 174
 175         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 176                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 177                 OID_AUTO, "rcv_pkt_thres",  CTLFLAG_RW,
 178                 &rcv_pkt_thres, rcv_pkt_thres,
 179                 "Threshold for # of rcv pkts to trigger indication isr");
 180
 181         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 182                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 183                 OID_AUTO, "rcv_pkt_thres_d",  CTLFLAG_RW,
 184                 &rcv_pkt_thres_d, rcv_pkt_thres_d,
 185                 "Threshold for # of rcv pkts to trigger indication defered");
 186
 187         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 188                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 189                 OID_AUTO, "snd_pkt_thres",  CTLFLAG_RW,
 190                 &snd_pkt_thres, snd_pkt_thres,
 191                 "Threshold for # of snd packets");
 192
 193         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 194                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 195                 OID_AUTO, "free_pkt_thres",  CTLFLAG_RW,
 196                 &free_pkt_thres, free_pkt_thres,
 197                 "Threshold for # of packets to free at a time");
 198
 199         return;
 200 }
 201
 202 static void
 203 qla_watchdog(void *arg)
 204 {
 205         qla_host_t *ha = arg;
 206         qla_hw_t *hw;
 207         struct ifnet *ifp;
 208
 209         hw = &ha->hw;
 210         ifp = ha->ifp;
 211
 212         if (ha->flags.qla_watchdog_exit)
 213                 return;
 214
 215         if (!ha->flags.qla_watchdog_pause) {
 216                 if (qla_le32_to_host(*(hw->tx_cons)) != hw->txr_comp) {
 217                         taskqueue_enqueue(ha->tx_tq, &ha->tx_task);
 218                 } else if ((ifp->if_snd.ifq_head != NULL) && QL_RUNNING(ifp)) {
 219                         taskqueue_enqueue(ha->tx_tq, &ha->tx_task);
 220                 }
 221         }
 222         ha->watchdog_ticks = ha->watchdog_ticks++ % 1000;
 223         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 224                 qla_watchdog, ha);
 225 }
 226
 227 /*
 228  * Name:        qla_pci_attach
 229  * Function:    attaches the device to the operating system
 230  */
 231 static int
 232 qla_pci_attach(device_t dev)
 233 {
 234         qla_host_t *ha = NULL;
 235         uint32_t rsrc_len, i;
 236
 237         QL_DPRINT2((dev, "%s: enter\n", __func__));
 238
 239         if ((ha = device_get_softc(dev)) == NULL) {
 240                 device_printf(dev, "cannot get softc\n");
 241                 return (ENOMEM);
 242         }
 243
 244         memset(ha, 0, sizeof (qla_host_t));
 245
 246         if (pci_get_device(dev) != PCI_PRODUCT_QLOGIC_ISP8020) {
 247                 device_printf(dev, "device is not ISP8020\n");
 248                 return (ENXIO);
 249         }
 250
 251         ha->pci_func = pci_get_function(dev);
 252
 253         ha->pci_dev = dev;
 254
 255         pci_enable_busmaster(dev);
 256
 257         ha->reg_rid = PCIR_BAR(0);
 258         ha->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ha->reg_rid,
 259                                 RF_ACTIVE);
 260
 261         if (ha->pci_reg == NULL) {
 262                 device_printf(dev, "unable to map any ports\n");
 263                 goto qla_pci_attach_err;
 264         }
 265
 266         rsrc_len = (uint32_t) bus_get_resource_count(dev, SYS_RES_MEMORY,
 267                                         ha->reg_rid);
 268
 269         mtx_init(&ha->hw_lock, "qla80xx_hw_lock", MTX_NETWORK_LOCK, MTX_DEF);
 270         mtx_init(&ha->tx_lock, "qla80xx_tx_lock", MTX_NETWORK_LOCK, MTX_DEF);
 271         mtx_init(&ha->rx_lock, "qla80xx_rx_lock", MTX_NETWORK_LOCK, MTX_DEF);
 272         mtx_init(&ha->rxj_lock, "qla80xx_rxj_lock", MTX_NETWORK_LOCK, MTX_DEF);
 273         ha->flags.lock_init = 1;
 274
 275         ha->msix_count = pci_msix_count(dev);
 276
 277         if (ha->msix_count < qla_get_msix_count(ha)) {
 278                 device_printf(dev, "%s: msix_count[%d] not enough\n", __func__,
 279                         ha->msix_count);
 280                 goto qla_pci_attach_err;
 281         }
 282
 283         QL_DPRINT2((dev, "%s: ha %p irq %p pci_func 0x%x rsrc_count 0x%08x"
 284                 " msix_count 0x%x pci_reg %p\n", __func__, ha,
 285                 ha->irq, ha->pci_func, rsrc_len, ha->msix_count, ha->pci_reg));
 286
 287         ha->msix_count = qla_get_msix_count(ha);
 288
 289         if (pci_alloc_msix(dev, &ha->msix_count)) {
 290                 device_printf(dev, "%s: pci_alloc_msi[%d] failed\n", __func__,
 291                         ha->msix_count);
 292                 ha->msix_count = 0;
 293                 goto qla_pci_attach_err;
 294         }
 295
 296         TASK_INIT(&ha->tx_task, 0, qla_tx_done, ha);
 297         ha->tx_tq = taskqueue_create_fast("qla_txq", M_NOWAIT,
 298                         taskqueue_thread_enqueue, &ha->tx_tq);
 299         taskqueue_start_threads(&ha->tx_tq, 1, PI_NET, "%s txq",
 300                 device_get_nameunit(ha->pci_dev));
 301
 302         for (i = 0; i < ha->msix_count; i++) {
 303                 ha->irq_vec[i].irq_rid = i+1;
 304                 ha->irq_vec[i].ha = ha;
 305
 306                 ha->irq_vec[i].irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 307                                         &ha->irq_vec[i].irq_rid,
 308                                         (RF_ACTIVE | RF_SHAREABLE));
 309
 310                 if (ha->irq_vec[i].irq == NULL) {
 311                         device_printf(dev, "could not allocate interrupt\n");
 312                         goto qla_pci_attach_err;
 313                 }
 314
 315                 if (bus_setup_intr(dev, ha->irq_vec[i].irq,
 316                         (INTR_TYPE_NET | INTR_MPSAFE),
 317                         NULL, qla_isr, &ha->irq_vec[i],
 318                         &ha->irq_vec[i].handle)) {
 319                         device_printf(dev, "could not setup interrupt\n");
 320                         goto qla_pci_attach_err;
 321                 }
 322
 323                 TASK_INIT(&ha->irq_vec[i].rcv_task, 0, qla_rcv,\
 324                         &ha->irq_vec[i]);
 325
 326                 ha->irq_vec[i].rcv_tq = taskqueue_create_fast("qla_rcvq",
 327                         M_NOWAIT, taskqueue_thread_enqueue,
 328                         &ha->irq_vec[i].rcv_tq);
 329
 330                 taskqueue_start_threads(&ha->irq_vec[i].rcv_tq, 1, PI_NET,
 331                         "%s rcvq",
 332                         device_get_nameunit(ha->pci_dev));
 333         }
 334
 335         qla_add_sysctls(ha);
 336
 337         /* add hardware specific sysctls */
 338         qla_hw_add_sysctls(ha);
 339
 340         /* initialize hardware */
 341         if (qla_init_hw(ha)) {
 342                 device_printf(dev, "%s: qla_init_hw failed\n", __func__);
 343                 goto qla_pci_attach_err;
 344         }
 345
 346         device_printf(dev, "%s: firmware[%d.%d.%d.%d]\n", __func__,
 347                 ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 348                 ha->fw_ver_build);
 349
 350         //qla_get_hw_caps(ha);
 351         qla_read_mac_addr(ha);
 352
 353         /* allocate parent dma tag */
 354         if (qla_alloc_parent_dma_tag(ha)) {
 355                 device_printf(dev, "%s: qla_alloc_parent_dma_tag failed\n",
 356                         __func__);
 357                 goto qla_pci_attach_err;
 358         }
 359
 360         /* alloc all dma buffers */
 361         if (qla_alloc_dma(ha)) {
 362                 device_printf(dev, "%s: qla_alloc_dma failed\n", __func__);
 363                 goto qla_pci_attach_err;
 364         }
 365
 366         /* create the o.s ethernet interface */
 367         qla_init_ifnet(dev, ha);
 368
 369         ha->flags.qla_watchdog_active = 1;
 370         ha->flags.qla_watchdog_pause = 1;
 371
 372         callout_init(&ha->tx_callout, TRUE);
 373
 374         /* create ioctl device interface */
 375         if (qla_make_cdev(ha)) {
 376                 device_printf(dev, "%s: qla_make_cdev failed\n", __func__);
 377                 goto qla_pci_attach_err;
 378         }
 379
 380         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 381                 qla_watchdog, ha);
 382
 383         QL_DPRINT2((dev, "%s: exit 0\n", __func__));
 384         return (0);
 385
 386 qla_pci_attach_err:
 387
 388         qla_release(ha);
 389
 390         QL_DPRINT2((dev, "%s: exit ENXIO\n", __func__));
 391         return (ENXIO);
 392 }
 393
 394 /*
 395  * Name:        qla_pci_detach
 396  * Function:    Unhooks the device from the operating system
 397  */
 398 static int
 399 qla_pci_detach(device_t dev)
 400 {
 401         qla_host_t *ha = NULL;
 402         struct ifnet *ifp;
 403         int i;
 404
 405         QL_DPRINT2((dev, "%s: enter\n", __func__));
 406
 407         if ((ha = device_get_softc(dev)) == NULL) {
 408                 device_printf(dev, "cannot get softc\n");
 409                 return (ENOMEM);
 410         }
 411
 412         ifp = ha->ifp;
 413
 414         QLA_LOCK(ha, __func__);
 415         qla_stop(ha);
 416         QLA_UNLOCK(ha, __func__);
 417
 418         if (ha->tx_tq) {
 419                 taskqueue_drain(ha->tx_tq, &ha->tx_task);
 420                 taskqueue_free(ha->tx_tq);
 421         }
 422
 423         for (i = 0; i < ha->msix_count; i++) {
 424                 taskqueue_drain(ha->irq_vec[i].rcv_tq,
 425                         &ha->irq_vec[i].rcv_task);
 426                 taskqueue_free(ha->irq_vec[i].rcv_tq);
 427         }
 428
 429         qla_release(ha);
 430
 431         QL_DPRINT2((dev, "%s: exit\n", __func__));
 432
 433         return (0);
 434 }
 435
 436 /*
 437  * SYSCTL Related Callbacks
 438  */
 439 static int
 440 qla_sysctl_get_stats(SYSCTL_HANDLER_ARGS)
 441 {
 442         int err, ret = 0;
 443         qla_host_t *ha;
 444
 445         err = sysctl_handle_int(oidp, &ret, 0, req);
 446
 447         if (err)
 448                 return (err);
 449
 450         ha = (qla_host_t *)arg1;
 451         //qla_get_stats(ha);
 452         QL_DPRINT2((ha->pci_dev, "%s: called ret %d\n", __func__, ret));
 453         return (err);
 454 }
 455
 456
 457 /*
 458  * Name:        qla_release
 459  * Function:    Releases the resources allocated for the device
 460  */
 461 static void
 462 qla_release(qla_host_t *ha)
 463 {
 464         device_t dev;
 465         int i;
 466
 467         dev = ha->pci_dev;
 468
 469         qla_del_cdev(ha);
 470
 471         if (ha->flags.qla_watchdog_active)
 472                 ha->flags.qla_watchdog_exit = 1;
 473
 474         callout_stop(&ha->tx_callout);
 475         qla_mdelay(__func__, 100);
 476
 477         if (ha->ifp != NULL)
 478                 ether_ifdetach(ha->ifp);
 479
 480         qla_free_dma(ha);
 481         qla_free_parent_dma_tag(ha);
 482
 483         for (i = 0; i < ha->msix_count; i++) {
 484                 if (ha->irq_vec[i].handle)
 485                         (void)bus_teardown_intr(dev, ha->irq_vec[i].irq,
 486                                 ha->irq_vec[i].handle);
 487                 if (ha->irq_vec[i].irq)
 488                         (void) bus_release_resource(dev, SYS_RES_IRQ,
 489                                 ha->irq_vec[i].irq_rid,
 490                                 ha->irq_vec[i].irq);
 491         }
 492         if (ha->msix_count)
 493                 pci_release_msi(dev);
 494
 495         if (ha->flags.lock_init) {
 496                 mtx_destroy(&ha->tx_lock);
 497                 mtx_destroy(&ha->rx_lock);
 498                 mtx_destroy(&ha->rxj_lock);
 499                 mtx_destroy(&ha->hw_lock);
 500         }
 501
 502         if (ha->pci_reg)
 503                 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid,
 504                                 ha->pci_reg);
 505 }
 506
 507 /*
 508  * DMA Related Functions
 509  */
 510
 511 static void
 512 qla_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 513 {
 514         *((bus_addr_t *)arg) = 0;
 515
 516         if (error) {
 517                 printf("%s: bus_dmamap_load failed (%d)\n", __func__, error);
 518                 return;
 519         }
 520
 521         QL_ASSERT((nsegs == 1), ("%s: %d segments returned!", __func__, nsegs));
 522
 523         *((bus_addr_t *)arg) = segs[0].ds_addr;
 524
 525         return;
 526 }
 527
 528 int
 529 qla_alloc_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 530 {
 531         int             ret = 0;
 532         device_t        dev;
 533         bus_addr_t      b_addr;
 534
 535         dev = ha->pci_dev;
 536
 537         QL_DPRINT2((dev, "%s: enter\n", __func__));
 538
 539         ret = bus_dma_tag_create(
 540                         ha->parent_tag,/* parent */
 541                         dma_buf->alignment,
 542                         ((bus_size_t)(1ULL << 32)),/* boundary */
 543                         BUS_SPACE_MAXADDR,      /* lowaddr */
 544                         BUS_SPACE_MAXADDR,      /* highaddr */
 545                         NULL, NULL,             /* filter, filterarg */
 546                         dma_buf->size,          /* maxsize */
 547                         1,                      /* nsegments */
 548                         dma_buf->size,          /* maxsegsize */
 549                         0,                      /* flags */
 550                         NULL, NULL,             /* lockfunc, lockarg */
 551                         &dma_buf->dma_tag);
 552
 553         if (ret) {
 554                 device_printf(dev, "%s: could not create dma tag\n", __func__);
 555                 goto qla_alloc_dmabuf_exit;
 556         }
 557         ret = bus_dmamem_alloc(dma_buf->dma_tag,
 558                         (void **)&dma_buf->dma_b,
 559                         (BUS_DMA_ZERO | BUS_DMA_COHERENT | BUS_DMA_NOWAIT),
 560                         &dma_buf->dma_map);
 561         if (ret) {
 562                 bus_dma_tag_destroy(dma_buf->dma_tag);
 563                 device_printf(dev, "%s: bus_dmamem_alloc failed\n", __func__);
 564                 goto qla_alloc_dmabuf_exit;
 565         }
 566
 567         ret = bus_dmamap_load(dma_buf->dma_tag,
 568                         dma_buf->dma_map,
 569                         dma_buf->dma_b,
 570                         dma_buf->size,
 571                         qla_dmamap_callback,
 572                         &b_addr, BUS_DMA_NOWAIT);
 573
 574         if (ret || !b_addr) {
 575                 bus_dma_tag_destroy(dma_buf->dma_tag);
 576                 bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b,
 577                         dma_buf->dma_map);
 578                 ret = -1;
 579                 goto qla_alloc_dmabuf_exit;
 580         }
 581
 582         dma_buf->dma_addr = b_addr;
 583
 584 qla_alloc_dmabuf_exit:
 585         QL_DPRINT2((dev, "%s: exit ret 0x%08x tag %p map %p b %p sz 0x%x\n",
 586                 __func__, ret, (void *)dma_buf->dma_tag,
 587                 (void *)dma_buf->dma_map, (void *)dma_buf->dma_b,
 588                 dma_buf->size));
 589
 590         return ret;
 591 }
 592
 593 void
 594 qla_free_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 595 {
 596         bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b, dma_buf->dma_map);
 597         bus_dma_tag_destroy(dma_buf->dma_tag);
 598 }
 599
 600 static int
 601 qla_alloc_parent_dma_tag(qla_host_t *ha)
 602 {
 603         int             ret;
 604         device_t        dev;
 605
 606         dev = ha->pci_dev;
 607
 608         /*
 609          * Allocate parent DMA Tag
 610          */
 611         ret = bus_dma_tag_create(
 612                         bus_get_dma_tag(dev),   /* parent */
 613                         1,((bus_size_t)(1ULL << 32)),/* alignment, boundary */
 614                         BUS_SPACE_MAXADDR,      /* lowaddr */
 615                         BUS_SPACE_MAXADDR,      /* highaddr */
 616                         NULL, NULL,             /* filter, filterarg */
 617                         BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
 618                         0,                      /* nsegments */
 619                         BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
 620                         0,                      /* flags */
 621                         NULL, NULL,             /* lockfunc, lockarg */
 622                         &ha->parent_tag);
 623
 624         if (ret) {
 625                 device_printf(dev, "%s: could not create parent dma tag\n",
 626                         __func__);
 627                 return (-1);
 628         }
 629
 630         ha->flags.parent_tag = 1;
 631
 632         return (0);
 633 }
 634
 635 static void
 636 qla_free_parent_dma_tag(qla_host_t *ha)
 637 {
 638         if (ha->flags.parent_tag) {
 639                 bus_dma_tag_destroy(ha->parent_tag);
 640                 ha->flags.parent_tag = 0;
 641         }
 642 }
 643
 644 /*
 645  * Name: qla_init_ifnet
 646  * Function: Creates the Network Device Interface and Registers it with the O.S
 647  */
 648
 649 static void
 650 qla_init_ifnet(device_t dev, qla_host_t *ha)
 651 {
 652         struct ifnet *ifp;
 653
 654         QL_DPRINT2((dev, "%s: enter\n", __func__));
 655
 656         ifp = ha->ifp = if_alloc(IFT_ETHER);
 657
 658         if (ifp == NULL)
 659                 panic("%s: cannot if_alloc()\n", device_get_nameunit(dev));
 660
 661         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 662
 663         ifp->if_mtu = ETHERMTU;
 664         ifp->if_baudrate = (1 * 1000 * 1000 *1000);
 665         ifp->if_init = qla_init;
 666         ifp->if_softc = ha;
 667         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 668         ifp->if_ioctl = qla_ioctl;
 669         ifp->if_start = qla_start;
 670
 671         IFQ_SET_MAXLEN(&ifp->if_snd, qla_get_ifq_snd_maxlen(ha));
 672         ifp->if_snd.ifq_drv_maxlen = qla_get_ifq_snd_maxlen(ha);
 673         IFQ_SET_READY(&ifp->if_snd);
 674
 675         ha->max_frame_size = ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 676
 677         ether_ifattach(ifp, qla_get_mac_addr(ha));
 678
 679         ifp->if_capabilities = IFCAP_HWCSUM |
 680                                 IFCAP_TSO4 |
 681                                 IFCAP_JUMBO_MTU;
 682
 683         ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
 684
 685 #if defined(__FreeBSD_version) && (__FreeBSD_version < 900002)
 686         ifp->if_timer = 0;
 687         ifp->if_watchdog = NULL;
 688 #endif /* #if defined(__FreeBSD_version) && (__FreeBSD_version < 900002) */
 689
 690         ifp->if_capenable = ifp->if_capabilities;
 691
 692         ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
 693
 694         ifmedia_init(&ha->media, IFM_IMASK, qla_media_change, qla_media_status);
 695
 696         ifmedia_add(&ha->media, (IFM_ETHER | qla_get_optics(ha) | IFM_FDX), 0,
 697                 NULL);
 698         ifmedia_add(&ha->media, (IFM_ETHER | IFM_AUTO), 0, NULL);
 699
 700         ifmedia_set(&ha->media, (IFM_ETHER | IFM_AUTO));
 701
 702         QL_DPRINT2((dev, "%s: exit\n", __func__));
 703
 704         return;
 705 }
 706
 707 static void
 708 qla_init_locked(qla_host_t *ha)
 709 {
 710         struct ifnet *ifp = ha->ifp;
 711
 712         qla_stop(ha);
 713
 714         if (qla_alloc_xmt_bufs(ha) != 0)
 715                 return;
 716
 717         if (qla_alloc_rcv_bufs(ha) != 0)
 718                 return;
 719
 720         if (qla_config_lro(ha))
 721                 return;
 722
 723         bcopy(IF_LLADDR(ha->ifp), ha->hw.mac_addr, ETHER_ADDR_LEN);
 724
 725         ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_TSO;
 726
 727         ha->flags.stop_rcv = 0;
 728         if (qla_init_hw_if(ha) == 0) {
 729                 ifp = ha->ifp;
 730                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
 731                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 732                 ha->flags.qla_watchdog_pause = 0;
 733         }
 734
 735         return;
 736 }
 737
 738 static void
 739 qla_init(void *arg)
 740 {
 741         qla_host_t *ha;
 742
 743         ha = (qla_host_t *)arg;
 744
 745         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
 746
 747         QLA_LOCK(ha, __func__);
 748         qla_init_locked(ha);
 749         QLA_UNLOCK(ha, __func__);
 750
 751         QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__));
 752 }
 753
 754 static void
 755 qla_set_multi(qla_host_t *ha, uint32_t add_multi)
 756 {
 757         uint8_t mta[Q8_MAX_NUM_MULTICAST_ADDRS * Q8_MAC_ADDR_LEN];
 758         struct ifmultiaddr *ifma;
 759         int mcnt = 0;
 760         struct ifnet *ifp = ha->ifp;
 761
 762         if_maddr_rlock(ifp);
 763
 764         TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 765
 766                 if (ifma->ifma_addr->sa_family != AF_LINK)
 767                         continue;
 768
 769                 if (mcnt == Q8_MAX_NUM_MULTICAST_ADDRS)
 770                         break;
 771
 772                 bcopy(LLADDR((struct sockaddr_dl *) ifma->ifma_addr),
 773                         &mta[mcnt * Q8_MAC_ADDR_LEN], Q8_MAC_ADDR_LEN);
 774
 775                 mcnt++;
 776         }
 777
 778         if_maddr_runlock(ifp);
 779
 780         qla_hw_set_multi(ha, mta, mcnt, add_multi);
 781
 782         return;
 783 }
 784
 785 static int
 786 qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 787 {
 788         int ret = 0;
 789         struct ifreq *ifr = (struct ifreq *)data;
 790         struct ifaddr *ifa = (struct ifaddr *)data;
 791         qla_host_t *ha;
 792
 793         ha = (qla_host_t *)ifp->if_softc;
 794
 795         switch (cmd) {
 796         case SIOCSIFADDR:
 797                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFADDR (0x%lx)\n",
 798                         __func__, cmd));
 799
 800                 if (ifa->ifa_addr->sa_family == AF_INET) {
 801                         ifp->if_flags |= IFF_UP;
 802                         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 803                                 QLA_LOCK(ha, __func__);
 804                                 qla_init_locked(ha);
 805                                 QLA_UNLOCK(ha, __func__);
 806                         }
 807                 QL_DPRINT4((ha->pci_dev,
 808                         "%s: SIOCSIFADDR (0x%lx) ipv4 [0x%08x]\n",
 809                         __func__, cmd, ntohl(IA_SIN(ifa)->sin_addr.s_addr)));
 810
 811                         arp_ifinit(ifp, ifa);
 812                         if (ntohl(IA_SIN(ifa)->sin_addr.s_addr) != INADDR_ANY) {
 813                                 qla_config_ipv4_addr(ha,
 814                                         (IA_SIN(ifa)->sin_addr.s_addr));
 815                         }
 816                 } else {
 817                         ether_ioctl(ifp, cmd, data);
 818                 }
 819                 break;
 820
 821         case SIOCSIFMTU:
 822                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFMTU (0x%lx)\n",
 823                         __func__, cmd));
 824
 825                 if (ifr->ifr_mtu > QLA_MAX_FRAME_SIZE - ETHER_HDR_LEN) {
 826                         ret = EINVAL;
 827                 } else {
 828                         QLA_LOCK(ha, __func__);
 829                         ifp->if_mtu = ifr->ifr_mtu;
 830                         ha->max_frame_size =
 831                                 ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 832                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 833                                 ret = qla_set_max_mtu(ha, ha->max_frame_size,
 834                                         (ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id);
 835                         }
 836                         QLA_UNLOCK(ha, __func__);
 837
 838                         if (ret)
 839                                 ret = EINVAL;
 840                 }
 841
 842                 break;
 843
 844         case SIOCSIFFLAGS:
 845                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFFLAGS (0x%lx)\n",
 846                         __func__, cmd));
 847
 848                 if (ifp->if_flags & IFF_UP) {
 849                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 850                                 if ((ifp->if_flags ^ ha->if_flags) &
 851                                         IFF_PROMISC) {
 852                                         qla_set_promisc(ha);
 853                                 } else if ((ifp->if_flags ^ ha->if_flags) &
 854                                         IFF_ALLMULTI) {
 855                                         qla_set_allmulti(ha);
 856                                 }
 857                         } else {
 858                                 QLA_LOCK(ha, __func__);
 859                                 qla_init_locked(ha);
 860                                 ha->max_frame_size = ifp->if_mtu +
 861                                         ETHER_HDR_LEN + ETHER_CRC_LEN;
 862                                 ret = qla_set_max_mtu(ha, ha->max_frame_size,
 863                                         (ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id);
 864                                 QLA_UNLOCK(ha, __func__);
 865                         }
 866                 } else {
 867                         QLA_LOCK(ha, __func__);
 868                         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
 869                                 qla_stop(ha);
 870                         ha->if_flags = ifp->if_flags;
 871                         QLA_UNLOCK(ha, __func__);
 872                 }
 873                 break;
 874
 875         case SIOCADDMULTI:
 876                 QL_DPRINT4((ha->pci_dev,
 877                         "%s: %s (0x%lx)\n", __func__, "SIOCADDMULTI", cmd));
 878
 879                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 880                         qla_set_multi(ha, 1);
 881                 }
 882                 break;
 883
 884         case SIOCDELMULTI:
 885                 QL_DPRINT4((ha->pci_dev,
 886                         "%s: %s (0x%lx)\n", __func__, "SIOCDELMULTI", cmd));
 887
 888                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 889                         qla_set_multi(ha, 0);
 890                 }
 891                 break;
 892
 893         case SIOCSIFMEDIA:
 894         case SIOCGIFMEDIA:
 895                 QL_DPRINT4((ha->pci_dev,
 896                         "%s: SIOCSIFMEDIA/SIOCGIFMEDIA (0x%lx)\n",
 897                         __func__, cmd));
 898                 ret = ifmedia_ioctl(ifp, ifr, &ha->media, cmd);
 899                 break;
 900
 901         case SIOCSIFCAP:
 902         {
 903                 int mask = ifr->ifr_reqcap ^ ifp->if_capenable;
 904
 905                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFCAP (0x%lx)\n",
 906                         __func__, cmd));
 907
 908                 if (mask & IFCAP_HWCSUM)
 909                         ifp->if_capenable ^= IFCAP_HWCSUM;
 910                 if (mask & IFCAP_TSO4)
 911                         ifp->if_capenable ^= IFCAP_TSO4;
 912                 if (mask & IFCAP_TSO6)
 913                         ifp->if_capenable ^= IFCAP_TSO6;
 914                 if (mask & IFCAP_VLAN_HWTAGGING)
 915                         ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
 916
 917                 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
 918                         qla_init(ha);
 919
 920                 VLAN_CAPABILITIES(ifp);
 921                 break;
 922         }
 923
 924         default:
 925                 QL_DPRINT4((ha->pci_dev, "%s: default (0x%lx)\n",
 926                         __func__, cmd));
 927                 ret = ether_ioctl(ifp, cmd, data);
 928                 break;
 929         }
 930
 931         return (ret);
 932 }
 933
 934 static int
 935 qla_media_change(struct ifnet *ifp)
 936 {
 937         qla_host_t *ha;
 938         struct ifmedia *ifm;
 939         int ret = 0;
 940
 941         ha = (qla_host_t *)ifp->if_softc;
 942
 943         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
 944
 945         ifm = &ha->media;
 946
 947         if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
 948                 ret = EINVAL;
 949
 950         QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__));
 951
 952         return (ret);
 953 }
 954
 955 static void
 956 qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr)
 957 {
 958         qla_host_t *ha;
 959
 960         ha = (qla_host_t *)ifp->if_softc;
 961
 962         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
 963
 964         ifmr->ifm_status = IFM_AVALID;
 965         ifmr->ifm_active = IFM_ETHER;
 966
 967         qla_update_link_state(ha);
 968         if (ha->hw.flags.link_up) {
 969                 ifmr->ifm_status |= IFM_ACTIVE;
 970                 ifmr->ifm_active |= (IFM_FDX | qla_get_optics(ha));
 971         }
 972
 973         QL_DPRINT2((ha->pci_dev, "%s: exit (%s)\n", __func__,\
 974                 (ha->hw.flags.link_up ? "link_up" : "link_down")));
 975
 976         return;
 977 }
 978
 979 void
 980 qla_start(struct ifnet *ifp)
 981 {
 982         struct mbuf    *m_head;
 983         qla_host_t *ha = (qla_host_t *)ifp->if_softc;
 984
 985         QL_DPRINT8((ha->pci_dev, "%s: enter\n", __func__));
 986
 987         if (!mtx_trylock(&ha->tx_lock)) {
 988                 QL_DPRINT8((ha->pci_dev,
 989                         "%s: mtx_trylock(&ha->tx_lock) failed\n", __func__));
 990                 return;
 991         }
 992
 993         if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
 994                 IFF_DRV_RUNNING) {
 995                 QL_DPRINT8((ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__));
 996                 QLA_TX_UNLOCK(ha);
 997                 return;
 998         }
 999
1000         if (!ha->watchdog_ticks)
1001                 qla_update_link_state(ha);
1002
1003         if (!ha->hw.flags.link_up) {
1004                 QL_DPRINT8((ha->pci_dev, "%s: link down\n", __func__));
1005                 QLA_TX_UNLOCK(ha);
1006                 return;
1007         }
1008
1009         while (ifp->if_snd.ifq_head != NULL) {
1010                 IF_DEQUEUE(&ifp->if_snd, m_head);
1011
1012                 if (m_head == NULL) {
1013                         QL_DPRINT8((ha->pci_dev, "%s: m_head == NULL\n",
1014                                 __func__));
1015                         break;
1016                 }
1017
1018                 if (qla_send(ha, &m_head)) {
1019                         if (m_head == NULL)
1020                                 break;
1021                         QL_DPRINT8((ha->pci_dev, "%s: PREPEND\n", __func__));
1022                         ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1023                         IF_PREPEND(&ifp->if_snd, m_head);
1024                         break;
1025                 }
1026                 /* Send a copy of the frame to the BPF listener */
1027                 ETHER_BPF_MTAP(ifp, m_head);
1028         }
1029         QLA_TX_UNLOCK(ha);
1030         QL_DPRINT8((ha->pci_dev, "%s: exit\n", __func__));
1031         return;
1032 }
1033
1034 static int
1035 qla_send(qla_host_t *ha, struct mbuf **m_headp)
1036 {
1037         bus_dma_segment_t       segs[QLA_MAX_SEGMENTS];
1038         bus_dmamap_t            map;
1039         int                     nsegs;
1040         int                     ret = -1;
1041         uint32_t                tx_idx;
1042         struct mbuf *m_head = *m_headp;
1043
1044         QL_DPRINT8((ha->pci_dev, "%s: enter\n", __func__));
1045
1046         if ((ret = bus_dmamap_create(ha->tx_tag, BUS_DMA_NOWAIT, &map))) {
1047                 ha->err_tx_dmamap_create++;
1048                 device_printf(ha->pci_dev,
1049                         "%s: bus_dmamap_create failed[%d, %d]\n",
1050                         __func__, ret, m_head->m_pkthdr.len);
1051                 return (ret);
1052         }
1053
1054         ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head, segs, &nsegs,
1055                         BUS_DMA_NOWAIT);
1056
1057         if (ret == EFBIG) {
1058
1059                 struct mbuf *m;
1060
1061                 QL_DPRINT8((ha->pci_dev, "%s: EFBIG [%d]\n", __func__,
1062                         m_head->m_pkthdr.len));
1063
1064                 m = m_defrag(m_head, M_NOWAIT);
1065                 if (m == NULL) {
1066                         ha->err_tx_defrag++;
1067                         m_freem(m_head);
1068                         *m_headp = NULL;
1069                         device_printf(ha->pci_dev,
1070                                 "%s: m_defrag() = NULL [%d]\n",
1071                                 __func__, ret);
1072                         return (ENOBUFS);
1073                 }
1074                 m_head = m;
1075
1076                 if ((ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head,
1077                                         segs, &nsegs, BUS_DMA_NOWAIT))) {
1078
1079                         ha->err_tx_dmamap_load++;
1080
1081                         device_printf(ha->pci_dev,
1082                                 "%s: bus_dmamap_load_mbuf_sg failed0[%d, %d]\n",
1083                                 __func__, ret, m_head->m_pkthdr.len);
1084
1085                         bus_dmamap_destroy(ha->tx_tag, map);
1086                         if (ret != ENOMEM) {
1087                                 m_freem(m_head);
1088                                 *m_headp = NULL;
1089                         }
1090                         return (ret);
1091                 }
1092         } else if (ret) {
1093                 ha->err_tx_dmamap_load++;
1094
1095                 device_printf(ha->pci_dev,
1096                         "%s: bus_dmamap_load_mbuf_sg failed1[%d, %d]\n",
1097                         __func__, ret, m_head->m_pkthdr.len);
1098
1099                 bus_dmamap_destroy(ha->tx_tag, map);
1100
1101                 if (ret != ENOMEM) {
1102                         m_freem(m_head);
1103                         *m_headp = NULL;
1104                 }
1105                 return (ret);
1106         }
1107
1108         QL_ASSERT((nsegs != 0), ("qla_send: empty packet"));
1109
1110         bus_dmamap_sync(ha->tx_tag, map, BUS_DMASYNC_PREWRITE);
1111
1112         if (!(ret = qla_hw_send(ha, segs, nsegs, &tx_idx, m_head))) {
1113                 ha->tx_buf[tx_idx].m_head = m_head;
1114                 ha->tx_buf[tx_idx].map = map;
1115         } else {
1116                 if (ret == EINVAL) {
1117                         m_freem(m_head);
1118                         *m_headp = NULL;
1119                 }
1120         }
1121
1122         QL_DPRINT8((ha->pci_dev, "%s: exit\n", __func__));
1123         return (ret);
1124 }
1125
1126 static void
1127 qla_stop(qla_host_t *ha)
1128 {
1129         struct ifnet *ifp = ha->ifp;
1130         device_t        dev;
1131
1132         dev = ha->pci_dev;
1133
1134         ha->flags.qla_watchdog_pause = 1;
1135         qla_mdelay(__func__, 100);
1136
1137         ha->flags.stop_rcv = 1;
1138         qla_hw_stop_rcv(ha);
1139
1140         qla_del_hw_if(ha);
1141
1142         qla_free_lro(ha);
1143
1144         qla_free_xmt_bufs(ha);
1145         qla_free_rcv_bufs(ha);
1146
1147         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
1148
1149         return;
1150 }
1151
1152 /*
1153  * Buffer Management Functions for Transmit and Receive Rings
1154  */
1155 static int
1156 qla_alloc_xmt_bufs(qla_host_t *ha)
1157 {
1158         if (bus_dma_tag_create(NULL,    /* parent */
1159                 1, 0,    /* alignment, bounds */
1160                 BUS_SPACE_MAXADDR,       /* lowaddr */
1161                 BUS_SPACE_MAXADDR,       /* highaddr */
1162                 NULL, NULL,      /* filter, filterarg */
1163                 QLA_MAX_TSO_FRAME_SIZE,     /* maxsize */
1164                 QLA_MAX_SEGMENTS,        /* nsegments */
1165                 PAGE_SIZE,        /* maxsegsize */
1166                 BUS_DMA_ALLOCNOW,        /* flags */
1167                 NULL,    /* lockfunc */
1168                 NULL,    /* lockfuncarg */
1169                 &ha->tx_tag)) {
1170                 device_printf(ha->pci_dev, "%s: tx_tag alloc failed\n",
1171                         __func__);
1172                 return (ENOMEM);
1173         }
1174         bzero((void *)ha->tx_buf, (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1175
1176         return 0;
1177 }
1178
1179 /*
1180  * Release mbuf after it sent on the wire
1181  */
1182 static void
1183 qla_clear_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb)
1184 {
1185         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
1186
1187         if (txb->m_head) {
1188
1189                 bus_dmamap_unload(ha->tx_tag, txb->map);
1190                 bus_dmamap_destroy(ha->tx_tag, txb->map);
1191
1192                 m_freem(txb->m_head);
1193                 txb->m_head = NULL;
1194         }
1195
1196         QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__));
1197 }
1198
1199 static void
1200 qla_free_xmt_bufs(qla_host_t *ha)
1201 {
1202         int             i;
1203
1204         for (i = 0; i < NUM_TX_DESCRIPTORS; i++)
1205                 qla_clear_tx_buf(ha, &ha->tx_buf[i]);
1206
1207         if (ha->tx_tag != NULL) {
1208                 bus_dma_tag_destroy(ha->tx_tag);
1209                 ha->tx_tag = NULL;
1210         }
1211         bzero((void *)ha->tx_buf, (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1212
1213         return;
1214 }
1215
1216
1217 static int
1218 qla_alloc_rcv_bufs(qla_host_t *ha)
1219 {
1220         int             i, j, ret = 0;
1221         qla_rx_buf_t    *rxb;
1222
1223         if (bus_dma_tag_create(NULL,    /* parent */
1224                         1, 0,    /* alignment, bounds */
1225                         BUS_SPACE_MAXADDR,       /* lowaddr */
1226                         BUS_SPACE_MAXADDR,       /* highaddr */
1227                         NULL, NULL,      /* filter, filterarg */
1228                         MJUM9BYTES,     /* maxsize */
1229                         1,        /* nsegments */
1230                         MJUM9BYTES,        /* maxsegsize */
1231                         BUS_DMA_ALLOCNOW,        /* flags */
1232                         NULL,    /* lockfunc */
1233                         NULL,    /* lockfuncarg */
1234                         &ha->rx_tag)) {
1235
1236                 device_printf(ha->pci_dev, "%s: rx_tag alloc failed\n",
1237                         __func__);
1238
1239                 return (ENOMEM);
1240         }
1241
1242         bzero((void *)ha->rx_buf, (sizeof(qla_rx_buf_t) * NUM_RX_DESCRIPTORS));
1243         bzero((void *)ha->rx_jbuf,
1244                 (sizeof(qla_rx_buf_t) * NUM_RX_JUMBO_DESCRIPTORS));
1245
1246         for (i = 0; i < MAX_SDS_RINGS; i++) {
1247                 ha->hw.sds[i].sdsr_next = 0;
1248                 ha->hw.sds[i].rxb_free = NULL;
1249                 ha->hw.sds[i].rx_free = 0;
1250                 ha->hw.sds[i].rxjb_free = NULL;
1251                 ha->hw.sds[i].rxj_free = 0;
1252         }
1253
1254         for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1255
1256                 rxb = &ha->rx_buf[i];
1257
1258                 ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT, &rxb->map);
1259
1260                 if (ret) {
1261                         device_printf(ha->pci_dev,
1262                                 "%s: dmamap[%d] failed\n", __func__, i);
1263
1264                         for (j = 0; j < i; j++) {
1265                                 bus_dmamap_destroy(ha->rx_tag,
1266                                         ha->rx_buf[j].map);
1267                         }
1268                         goto qla_alloc_rcv_bufs_failed;
1269                 }
1270         }
1271
1272         qla_init_hw_rcv_descriptors(ha, RDS_RING_INDEX_NORMAL);
1273
1274         for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1275                 rxb = &ha->rx_buf[i];
1276                 rxb->handle = i;
1277                 if (!(ret = qla_get_mbuf(ha, rxb, NULL, 0))) {
1278                         /*
1279                          * set the physical address in the corresponding
1280                          * descriptor entry in the receive ring/queue for the
1281                          * hba
1282                          */
1283                         qla_set_hw_rcv_desc(ha, RDS_RING_INDEX_NORMAL, i,
1284                                 rxb->handle, rxb->paddr,
1285                                 (rxb->m_head)->m_pkthdr.len);
1286                 } else {
1287                         device_printf(ha->pci_dev,
1288                                 "%s: qla_get_mbuf [standard(%d)] failed\n",
1289                                 __func__, i);
1290                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1291                         goto qla_alloc_rcv_bufs_failed;
1292                 }
1293         }
1294
1295
1296         for (i = 0; i < NUM_RX_JUMBO_DESCRIPTORS; i++) {
1297
1298                 rxb = &ha->rx_jbuf[i];
1299
1300                 ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT, &rxb->map);
1301
1302                 if (ret) {
1303                         device_printf(ha->pci_dev,
1304                                 "%s: dmamap[%d] failed\n", __func__, i);
1305
1306                         for (j = 0; j < i; j++) {
1307                                 bus_dmamap_destroy(ha->rx_tag,
1308                                         ha->rx_jbuf[j].map);
1309                         }
1310                         goto qla_alloc_rcv_bufs_failed;
1311                 }
1312         }
1313
1314         qla_init_hw_rcv_descriptors(ha, RDS_RING_INDEX_JUMBO);
1315
1316         for (i = 0; i < NUM_RX_JUMBO_DESCRIPTORS; i++) {
1317                 rxb = &ha->rx_jbuf[i];
1318                 rxb->handle = i;
1319                 if (!(ret = qla_get_mbuf(ha, rxb, NULL, 1))) {
1320                         /*
1321                          * set the physical address in the corresponding
1322                          * descriptor entry in the receive ring/queue for the
1323                          * hba
1324                          */
1325                         qla_set_hw_rcv_desc(ha, RDS_RING_INDEX_JUMBO, i,
1326                                 rxb->handle, rxb->paddr,
1327                                 (rxb->m_head)->m_pkthdr.len);
1328                 } else {
1329                         device_printf(ha->pci_dev,
1330                                 "%s: qla_get_mbuf [jumbo(%d)] failed\n",
1331                                 __func__, i);
1332                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1333                         goto qla_alloc_rcv_bufs_failed;
1334                 }
1335         }
1336
1337         return (0);
1338
1339 qla_alloc_rcv_bufs_failed:
1340         qla_free_rcv_bufs(ha);
1341         return (ret);
1342 }
1343
1344 static void
1345 qla_free_rcv_bufs(qla_host_t *ha)
1346 {
1347         int             i;
1348         qla_rx_buf_t    *rxb;
1349
1350         for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1351                 rxb = &ha->rx_buf[i];
1352                 if (rxb->m_head != NULL) {
1353                         bus_dmamap_unload(ha->rx_tag, rxb->map);
1354                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1355                         m_freem(rxb->m_head);
1356                         rxb->m_head = NULL;
1357                 }
1358         }
1359
1360         for (i = 0; i < NUM_RX_JUMBO_DESCRIPTORS; i++) {
1361                 rxb = &ha->rx_jbuf[i];
1362                 if (rxb->m_head != NULL) {
1363                         bus_dmamap_unload(ha->rx_tag, rxb->map);
1364                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1365                         m_freem(rxb->m_head);
1366                         rxb->m_head = NULL;
1367                 }
1368         }
1369
1370         if (ha->rx_tag != NULL) {
1371                 bus_dma_tag_destroy(ha->rx_tag);
1372                 ha->rx_tag = NULL;
1373         }
1374
1375         bzero((void *)ha->rx_buf, (sizeof(qla_rx_buf_t) * NUM_RX_DESCRIPTORS));
1376         bzero((void *)ha->rx_jbuf,
1377                 (sizeof(qla_rx_buf_t) * NUM_RX_JUMBO_DESCRIPTORS));
1378
1379         for (i = 0; i < MAX_SDS_RINGS; i++) {
1380                 ha->hw.sds[i].sdsr_next = 0;
1381                 ha->hw.sds[i].rxb_free = NULL;
1382                 ha->hw.sds[i].rx_free = 0;
1383                 ha->hw.sds[i].rxjb_free = NULL;
1384                 ha->hw.sds[i].rxj_free = 0;
1385         }
1386
1387         return;
1388 }
1389
1390 int
1391 qla_get_mbuf(qla_host_t *ha, qla_rx_buf_t *rxb, struct mbuf *nmp,
1392         uint32_t jumbo)
1393 {
1394         register struct mbuf *mp = nmp;
1395         struct ifnet   *ifp;
1396         int             ret = 0;
1397         uint32_t        offset;
1398
1399         QL_DPRINT2((ha->pci_dev, "%s: jumbo(0x%x) enter\n", __func__, jumbo));
1400
1401         ifp = ha->ifp;
1402
1403         if (mp == NULL) {
1404
1405                 if (!jumbo) {
1406                         mp = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1407
1408                         if (mp == NULL) {
1409                                 ha->err_m_getcl++;
1410                                 ret = ENOBUFS;
1411                                 device_printf(ha->pci_dev,
1412                                         "%s: m_getcl failed\n", __func__);
1413                                 goto exit_qla_get_mbuf;
1414                         }
1415                         mp->m_len = mp->m_pkthdr.len = MCLBYTES;
1416                 } else {
1417                         mp = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR,
1418                                 MJUM9BYTES);
1419                         if (mp == NULL) {
1420                                 ha->err_m_getjcl++;
1421                                 ret = ENOBUFS;
1422                                 device_printf(ha->pci_dev,
1423                                         "%s: m_getjcl failed\n", __func__);
1424                                 goto exit_qla_get_mbuf;
1425                         }
1426                         mp->m_len = mp->m_pkthdr.len = MJUM9BYTES;
1427                 }
1428         } else {
1429                 if (!jumbo)
1430                         mp->m_len = mp->m_pkthdr.len = MCLBYTES;
1431                 else
1432                         mp->m_len = mp->m_pkthdr.len = MJUM9BYTES;
1433
1434                 mp->m_data = mp->m_ext.ext_buf;
1435                 mp->m_next = NULL;
1436         }
1437
1438
1439         offset = (uint32_t)((unsigned long long)mp->m_data & 0x7ULL);
1440         if (offset) {
1441                 offset = 8 - offset;
1442                 m_adj(mp, offset);
1443         }
1444
1445         /*
1446          * Using memory from the mbuf cluster pool, invoke the bus_dma
1447          * machinery to arrange the memory mapping.
1448          */
1449         ret = bus_dmamap_load(ha->rx_tag, rxb->map,
1450                                 mtod(mp, void *), mp->m_len,
1451                                 qla_dmamap_callback, &rxb->paddr,
1452                                 BUS_DMA_NOWAIT);
1453         if (ret || !rxb->paddr) {
1454                 m_free(mp);
1455                 rxb->m_head = NULL;
1456                 device_printf(ha->pci_dev,
1457                         "%s: bus_dmamap_load failed\n", __func__);
1458                 ret = -1;
1459                 goto exit_qla_get_mbuf;
1460         }
1461         rxb->m_head = mp;
1462         bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_PREREAD);
1463
1464 exit_qla_get_mbuf:
1465         QL_DPRINT2((ha->pci_dev, "%s: exit ret = 0x%08x\n", __func__, ret));
1466         return (ret);
1467 }
1468
1469 static void
1470 qla_tx_done(void *context, int pending)
1471 {
1472         qla_host_t *ha = context;
1473
1474         qla_hw_tx_done(ha);
1475         qla_start(ha->ifp);
1476 }
1477