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_baudrate = (1 * 1000 * 1000 *1000);
 664         ifp->if_init = qla_init;
 665         ifp->if_softc = ha;
 666         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 667         ifp->if_ioctl = qla_ioctl;
 668         ifp->if_start = qla_start;
 669
 670         IFQ_SET_MAXLEN(&ifp->if_snd, qla_get_ifq_snd_maxlen(ha));
 671         ifp->if_snd.ifq_drv_maxlen = qla_get_ifq_snd_maxlen(ha);
 672         IFQ_SET_READY(&ifp->if_snd);
 673
 674         ha->max_frame_size = ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 675
 676         ether_ifattach(ifp, qla_get_mac_addr(ha));
 677
 678         ifp->if_capabilities = IFCAP_HWCSUM |
 679                                 IFCAP_TSO4 |
 680                                 IFCAP_JUMBO_MTU;
 681
 682         ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
 683
 684 #if defined(__FreeBSD_version) && (__FreeBSD_version < 900002)
 685         ifp->if_timer = 0;
 686         ifp->if_watchdog = NULL;
 687 #endif /* #if defined(__FreeBSD_version) && (__FreeBSD_version < 900002) */
 688
 689         ifp->if_capenable = ifp->if_capabilities;
 690
 691         ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
 692
 693         ifmedia_init(&ha->media, IFM_IMASK, qla_media_change, qla_media_status);
 694
 695         ifmedia_add(&ha->media, (IFM_ETHER | qla_get_optics(ha) | IFM_FDX), 0,
 696                 NULL);
 697         ifmedia_add(&ha->media, (IFM_ETHER | IFM_AUTO), 0, NULL);
 698
 699         ifmedia_set(&ha->media, (IFM_ETHER | IFM_AUTO));
 700
 701         QL_DPRINT2((dev, "%s: exit\n", __func__));
 702
 703         return;
 704 }
 705
 706 static void
 707 qla_init_locked(qla_host_t *ha)
 708 {
 709         struct ifnet *ifp = ha->ifp;
 710
 711         qla_stop(ha);
 712
 713         if (qla_alloc_xmt_bufs(ha) != 0)
 714                 return;
 715
 716         if (qla_alloc_rcv_bufs(ha) != 0)
 717                 return;
 718
 719         if (qla_config_lro(ha))
 720                 return;
 721
 722         bcopy(IF_LLADDR(ha->ifp), ha->hw.mac_addr, ETHER_ADDR_LEN);
 723
 724         ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_TSO;
 725
 726         ha->flags.stop_rcv = 0;
 727         if (qla_init_hw_if(ha) == 0) {
 728                 ifp = ha->ifp;
 729                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
 730                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 731                 ha->flags.qla_watchdog_pause = 0;
 732         }
 733
 734         return;
 735 }
 736
 737 static void
 738 qla_init(void *arg)
 739 {
 740         qla_host_t *ha;
 741
 742         ha = (qla_host_t *)arg;
 743
 744         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
 745
 746         QLA_LOCK(ha, __func__);
 747         qla_init_locked(ha);
 748         QLA_UNLOCK(ha, __func__);
 749
 750         QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__));
 751 }
 752
 753 static void
 754 qla_set_multi(qla_host_t *ha, uint32_t add_multi)
 755 {
 756         uint8_t mta[Q8_MAX_NUM_MULTICAST_ADDRS * Q8_MAC_ADDR_LEN];
 757         struct ifmultiaddr *ifma;
 758         int mcnt = 0;
 759         struct ifnet *ifp = ha->ifp;
 760
 761         if_maddr_rlock(ifp);
 762
 763         TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 764
 765                 if (ifma->ifma_addr->sa_family != AF_LINK)
 766                         continue;
 767
 768                 if (mcnt == Q8_MAX_NUM_MULTICAST_ADDRS)
 769                         break;
 770
 771                 bcopy(LLADDR((struct sockaddr_dl *) ifma->ifma_addr),
 772                         &mta[mcnt * Q8_MAC_ADDR_LEN], Q8_MAC_ADDR_LEN);
 773
 774                 mcnt++;
 775         }
 776
 777         if_maddr_runlock(ifp);
 778
 779         qla_hw_set_multi(ha, mta, mcnt, add_multi);
 780
 781         return;
 782 }
 783
 784 static int
 785 qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 786 {
 787         int ret = 0;
 788         struct ifreq *ifr = (struct ifreq *)data;
 789         struct ifaddr *ifa = (struct ifaddr *)data;
 790         qla_host_t *ha;
 791
 792         ha = (qla_host_t *)ifp->if_softc;
 793
 794         switch (cmd) {
 795         case SIOCSIFADDR:
 796                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFADDR (0x%lx)\n",
 797                         __func__, cmd));
 798
 799                 if (ifa->ifa_addr->sa_family == AF_INET) {
 800                         ifp->if_flags |= IFF_UP;
 801                         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 802                                 QLA_LOCK(ha, __func__);
 803                                 qla_init_locked(ha);
 804                                 QLA_UNLOCK(ha, __func__);
 805                         }
 806                 QL_DPRINT4((ha->pci_dev,
 807                         "%s: SIOCSIFADDR (0x%lx) ipv4 [0x%08x]\n",
 808                         __func__, cmd, ntohl(IA_SIN(ifa)->sin_addr.s_addr)));
 809
 810                         arp_ifinit(ifp, ifa);
 811                         if (ntohl(IA_SIN(ifa)->sin_addr.s_addr) != INADDR_ANY) {
 812                                 qla_config_ipv4_addr(ha,
 813                                         (IA_SIN(ifa)->sin_addr.s_addr));
 814                         }
 815                 } else {
 816                         ether_ioctl(ifp, cmd, data);
 817                 }
 818                 break;
 819
 820         case SIOCSIFMTU:
 821                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFMTU (0x%lx)\n",
 822                         __func__, cmd));
 823
 824                 if (ifr->ifr_mtu > QLA_MAX_FRAME_SIZE - ETHER_HDR_LEN) {
 825                         ret = EINVAL;
 826                 } else {
 827                         QLA_LOCK(ha, __func__);
 828                         ifp->if_mtu = ifr->ifr_mtu;
 829                         ha->max_frame_size =
 830                                 ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 831                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 832                                 ret = qla_set_max_mtu(ha, ha->max_frame_size,
 833                                         (ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id);
 834                         }
 835                         QLA_UNLOCK(ha, __func__);
 836
 837                         if (ret)
 838                                 ret = EINVAL;
 839                 }
 840
 841                 break;
 842
 843         case SIOCSIFFLAGS:
 844                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFFLAGS (0x%lx)\n",
 845                         __func__, cmd));
 846
 847                 if (ifp->if_flags & IFF_UP) {
 848                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 849                                 if ((ifp->if_flags ^ ha->if_flags) &
 850                                         IFF_PROMISC) {
 851                                         qla_set_promisc(ha);
 852                                 } else if ((ifp->if_flags ^ ha->if_flags) &
 853                                         IFF_ALLMULTI) {
 854                                         qla_set_allmulti(ha);
 855                                 }
 856                         } else {
 857                                 QLA_LOCK(ha, __func__);
 858                                 qla_init_locked(ha);
 859                                 ha->max_frame_size = ifp->if_mtu +
 860                                         ETHER_HDR_LEN + ETHER_CRC_LEN;
 861                                 ret = qla_set_max_mtu(ha, ha->max_frame_size,
 862                                         (ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id);
 863                                 QLA_UNLOCK(ha, __func__);
 864                         }
 865                 } else {
 866                         QLA_LOCK(ha, __func__);
 867                         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
 868                                 qla_stop(ha);
 869                         ha->if_flags = ifp->if_flags;
 870                         QLA_UNLOCK(ha, __func__);
 871                 }
 872                 break;
 873
 874         case SIOCADDMULTI:
 875                 QL_DPRINT4((ha->pci_dev,
 876                         "%s: %s (0x%lx)\n", __func__, "SIOCADDMULTI", cmd));
 877
 878                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 879                         qla_set_multi(ha, 1);
 880                 }
 881                 break;
 882
 883         case SIOCDELMULTI:
 884                 QL_DPRINT4((ha->pci_dev,
 885                         "%s: %s (0x%lx)\n", __func__, "SIOCDELMULTI", cmd));
 886
 887                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 888                         qla_set_multi(ha, 0);
 889                 }
 890                 break;
 891
 892         case SIOCSIFMEDIA:
 893         case SIOCGIFMEDIA:
 894                 QL_DPRINT4((ha->pci_dev,
 895                         "%s: SIOCSIFMEDIA/SIOCGIFMEDIA (0x%lx)\n",
 896                         __func__, cmd));
 897                 ret = ifmedia_ioctl(ifp, ifr, &ha->media, cmd);
 898                 break;
 899
 900         case SIOCSIFCAP:
 901         {
 902                 int mask = ifr->ifr_reqcap ^ ifp->if_capenable;
 903
 904                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFCAP (0x%lx)\n",
 905                         __func__, cmd));
 906
 907                 if (mask & IFCAP_HWCSUM)
 908                         ifp->if_capenable ^= IFCAP_HWCSUM;
 909                 if (mask & IFCAP_TSO4)
 910                         ifp->if_capenable ^= IFCAP_TSO4;
 911                 if (mask & IFCAP_TSO6)
 912                         ifp->if_capenable ^= IFCAP_TSO6;
 913                 if (mask & IFCAP_VLAN_HWTAGGING)
 914                         ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
 915
 916                 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
 917                         qla_init(ha);
 918
 919                 VLAN_CAPABILITIES(ifp);
 920                 break;
 921         }
 922
 923         default:
 924                 QL_DPRINT4((ha->pci_dev, "%s: default (0x%lx)\n",
 925                         __func__, cmd));
 926                 ret = ether_ioctl(ifp, cmd, data);
 927                 break;
 928         }
 929
 930         return (ret);
 931 }
 932
 933 static int
 934 qla_media_change(struct ifnet *ifp)
 935 {
 936         qla_host_t *ha;
 937         struct ifmedia *ifm;
 938         int ret = 0;
 939
 940         ha = (qla_host_t *)ifp->if_softc;
 941
 942         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
 943
 944         ifm = &ha->media;
 945
 946         if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
 947                 ret = EINVAL;
 948
 949         QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__));
 950
 951         return (ret);
 952 }
 953
 954 static void
 955 qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr)
 956 {
 957         qla_host_t *ha;
 958
 959         ha = (qla_host_t *)ifp->if_softc;
 960
 961         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
 962
 963         ifmr->ifm_status = IFM_AVALID;
 964         ifmr->ifm_active = IFM_ETHER;
 965
 966         qla_update_link_state(ha);
 967         if (ha->hw.flags.link_up) {
 968                 ifmr->ifm_status |= IFM_ACTIVE;
 969                 ifmr->ifm_active |= (IFM_FDX | qla_get_optics(ha));
 970         }
 971
 972         QL_DPRINT2((ha->pci_dev, "%s: exit (%s)\n", __func__,\
 973                 (ha->hw.flags.link_up ? "link_up" : "link_down")));
 974
 975         return;
 976 }
 977
 978 void
 979 qla_start(struct ifnet *ifp)
 980 {
 981         struct mbuf    *m_head;
 982         qla_host_t *ha = (qla_host_t *)ifp->if_softc;
 983
 984         QL_DPRINT8((ha->pci_dev, "%s: enter\n", __func__));
 985
 986         if (!mtx_trylock(&ha->tx_lock)) {
 987                 QL_DPRINT8((ha->pci_dev,
 988                         "%s: mtx_trylock(&ha->tx_lock) failed\n", __func__));
 989                 return;
 990         }
 991
 992         if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
 993                 IFF_DRV_RUNNING) {
 994                 QL_DPRINT8((ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__));
 995                 QLA_TX_UNLOCK(ha);
 996                 return;
 997         }
 998
 999         if (!ha->watchdog_ticks)
1000                 qla_update_link_state(ha);
1001
1002         if (!ha->hw.flags.link_up) {
1003                 QL_DPRINT8((ha->pci_dev, "%s: link down\n", __func__));
1004                 QLA_TX_UNLOCK(ha);
1005                 return;
1006         }
1007
1008         while (ifp->if_snd.ifq_head != NULL) {
1009                 IF_DEQUEUE(&ifp->if_snd, m_head);
1010
1011                 if (m_head == NULL) {
1012                         QL_DPRINT8((ha->pci_dev, "%s: m_head == NULL\n",
1013                                 __func__));
1014                         break;
1015                 }
1016
1017                 if (qla_send(ha, &m_head)) {
1018                         if (m_head == NULL)
1019                                 break;
1020                         QL_DPRINT8((ha->pci_dev, "%s: PREPEND\n", __func__));
1021                         ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1022                         IF_PREPEND(&ifp->if_snd, m_head);
1023                         break;
1024                 }
1025                 /* Send a copy of the frame to the BPF listener */
1026                 ETHER_BPF_MTAP(ifp, m_head);
1027         }
1028         QLA_TX_UNLOCK(ha);
1029         QL_DPRINT8((ha->pci_dev, "%s: exit\n", __func__));
1030         return;
1031 }
1032
1033 static int
1034 qla_send(qla_host_t *ha, struct mbuf **m_headp)
1035 {
1036         bus_dma_segment_t       segs[QLA_MAX_SEGMENTS];
1037         bus_dmamap_t            map;
1038         int                     nsegs;
1039         int                     ret = -1;
1040         uint32_t                tx_idx;
1041         struct mbuf *m_head = *m_headp;
1042
1043         QL_DPRINT8((ha->pci_dev, "%s: enter\n", __func__));
1044
1045         if ((ret = bus_dmamap_create(ha->tx_tag, BUS_DMA_NOWAIT, &map))) {
1046                 ha->err_tx_dmamap_create++;
1047                 device_printf(ha->pci_dev,
1048                         "%s: bus_dmamap_create failed[%d, %d]\n",
1049                         __func__, ret, m_head->m_pkthdr.len);
1050                 return (ret);
1051         }
1052
1053         ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head, segs, &nsegs,
1054                         BUS_DMA_NOWAIT);
1055
1056         if ((ret == EFBIG) ||
1057                 ((nsegs > Q8_TX_MAX_SEGMENTS) &&
1058                  (((m_head->m_pkthdr.csum_flags & CSUM_TSO) == 0) ||
1059                         (m_head->m_pkthdr.len <= ha->max_frame_size)))) {
1060
1061                 struct mbuf *m;
1062
1063                 QL_DPRINT8((ha->pci_dev, "%s: EFBIG [%d]\n", __func__,
1064                         m_head->m_pkthdr.len));
1065
1066                 m = m_defrag(m_head, M_NOWAIT);
1067                 if (m == NULL) {
1068                         ha->err_tx_defrag++;
1069                         m_freem(m_head);
1070                         *m_headp = NULL;
1071                         device_printf(ha->pci_dev,
1072                                 "%s: m_defrag() = NULL [%d]\n",
1073                                 __func__, ret);
1074                         return (ENOBUFS);
1075                 }
1076                 m_head = m;
1077
1078                 if ((ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head,
1079                                         segs, &nsegs, BUS_DMA_NOWAIT))) {
1080
1081                         ha->err_tx_dmamap_load++;
1082
1083                         device_printf(ha->pci_dev,
1084                                 "%s: bus_dmamap_load_mbuf_sg failed0[%d, %d]\n",
1085                                 __func__, ret, m_head->m_pkthdr.len);
1086
1087                         bus_dmamap_destroy(ha->tx_tag, map);
1088                         if (ret != ENOMEM) {
1089                                 m_freem(m_head);
1090                                 *m_headp = NULL;
1091                         }
1092                         return (ret);
1093                 }
1094         } else if (ret) {
1095                 ha->err_tx_dmamap_load++;
1096
1097                 device_printf(ha->pci_dev,
1098                         "%s: bus_dmamap_load_mbuf_sg failed1[%d, %d]\n",
1099                         __func__, ret, m_head->m_pkthdr.len);
1100
1101                 bus_dmamap_destroy(ha->tx_tag, map);
1102
1103                 if (ret != ENOMEM) {
1104                         m_freem(m_head);
1105                         *m_headp = NULL;
1106                 }
1107                 return (ret);
1108         }
1109
1110         QL_ASSERT((nsegs != 0), ("qla_send: empty packet"));
1111
1112         bus_dmamap_sync(ha->tx_tag, map, BUS_DMASYNC_PREWRITE);
1113
1114         if (!(ret = qla_hw_send(ha, segs, nsegs, &tx_idx, m_head))) {
1115                 ha->tx_buf[tx_idx].m_head = m_head;
1116                 ha->tx_buf[tx_idx].map = map;
1117         } else {
1118                 if (ret == EINVAL) {
1119                         m_freem(m_head);
1120                         *m_headp = NULL;
1121                 }
1122         }
1123
1124         QL_DPRINT8((ha->pci_dev, "%s: exit\n", __func__));
1125         return (ret);
1126 }
1127
1128 static void
1129 qla_stop(qla_host_t *ha)
1130 {
1131         struct ifnet *ifp = ha->ifp;
1132         device_t        dev;
1133
1134         dev = ha->pci_dev;
1135
1136         ha->flags.qla_watchdog_pause = 1;
1137         qla_mdelay(__func__, 100);
1138
1139         ha->flags.stop_rcv = 1;
1140         qla_hw_stop_rcv(ha);
1141
1142         qla_del_hw_if(ha);
1143
1144         qla_free_lro(ha);
1145
1146         qla_free_xmt_bufs(ha);
1147         qla_free_rcv_bufs(ha);
1148
1149         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
1150
1151         return;
1152 }
1153
1154 /*
1155  * Buffer Management Functions for Transmit and Receive Rings
1156  */
1157 static int
1158 qla_alloc_xmt_bufs(qla_host_t *ha)
1159 {
1160         if (bus_dma_tag_create(NULL,    /* parent */
1161                 1, 0,    /* alignment, bounds */
1162                 BUS_SPACE_MAXADDR,       /* lowaddr */
1163                 BUS_SPACE_MAXADDR,       /* highaddr */
1164                 NULL, NULL,      /* filter, filterarg */
1165                 QLA_MAX_TSO_FRAME_SIZE,     /* maxsize */
1166                 QLA_MAX_SEGMENTS,        /* nsegments */
1167                 PAGE_SIZE,        /* maxsegsize */
1168                 BUS_DMA_ALLOCNOW,        /* flags */
1169                 NULL,    /* lockfunc */
1170                 NULL,    /* lockfuncarg */
1171                 &ha->tx_tag)) {
1172                 device_printf(ha->pci_dev, "%s: tx_tag alloc failed\n",
1173                         __func__);
1174                 return (ENOMEM);
1175         }
1176         bzero((void *)ha->tx_buf, (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1177
1178         return 0;
1179 }
1180
1181 /*
1182  * Release mbuf after it sent on the wire
1183  */
1184 static void
1185 qla_clear_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb)
1186 {
1187         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
1188
1189         if (txb->m_head) {
1190
1191                 bus_dmamap_unload(ha->tx_tag, txb->map);
1192                 bus_dmamap_destroy(ha->tx_tag, txb->map);
1193
1194                 m_freem(txb->m_head);
1195                 txb->m_head = NULL;
1196         }
1197
1198         QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__));
1199 }
1200
1201 static void
1202 qla_free_xmt_bufs(qla_host_t *ha)
1203 {
1204         int             i;
1205
1206         for (i = 0; i < NUM_TX_DESCRIPTORS; i++)
1207                 qla_clear_tx_buf(ha, &ha->tx_buf[i]);
1208
1209         if (ha->tx_tag != NULL) {
1210                 bus_dma_tag_destroy(ha->tx_tag);
1211                 ha->tx_tag = NULL;
1212         }
1213         bzero((void *)ha->tx_buf, (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1214
1215         return;
1216 }
1217
1218
1219 static int
1220 qla_alloc_rcv_bufs(qla_host_t *ha)
1221 {
1222         int             i, j, ret = 0;
1223         qla_rx_buf_t    *rxb;
1224
1225         if (bus_dma_tag_create(NULL,    /* parent */
1226                         1, 0,    /* alignment, bounds */
1227                         BUS_SPACE_MAXADDR,       /* lowaddr */
1228                         BUS_SPACE_MAXADDR,       /* highaddr */
1229                         NULL, NULL,      /* filter, filterarg */
1230                         MJUM9BYTES,     /* maxsize */
1231                         1,        /* nsegments */
1232                         MJUM9BYTES,        /* maxsegsize */
1233                         BUS_DMA_ALLOCNOW,        /* flags */
1234                         NULL,    /* lockfunc */
1235                         NULL,    /* lockfuncarg */
1236                         &ha->rx_tag)) {
1237
1238                 device_printf(ha->pci_dev, "%s: rx_tag alloc failed\n",
1239                         __func__);
1240
1241                 return (ENOMEM);
1242         }
1243
1244         bzero((void *)ha->rx_buf, (sizeof(qla_rx_buf_t) * NUM_RX_DESCRIPTORS));
1245         bzero((void *)ha->rx_jbuf,
1246                 (sizeof(qla_rx_buf_t) * NUM_RX_JUMBO_DESCRIPTORS));
1247
1248         for (i = 0; i < MAX_SDS_RINGS; i++) {
1249                 ha->hw.sds[i].sdsr_next = 0;
1250                 ha->hw.sds[i].rxb_free = NULL;
1251                 ha->hw.sds[i].rx_free = 0;
1252                 ha->hw.sds[i].rxjb_free = NULL;
1253                 ha->hw.sds[i].rxj_free = 0;
1254         }
1255
1256         for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1257
1258                 rxb = &ha->rx_buf[i];
1259
1260                 ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT, &rxb->map);
1261
1262                 if (ret) {
1263                         device_printf(ha->pci_dev,
1264                                 "%s: dmamap[%d] failed\n", __func__, i);
1265
1266                         for (j = 0; j < i; j++) {
1267                                 bus_dmamap_destroy(ha->rx_tag,
1268                                         ha->rx_buf[j].map);
1269                         }
1270                         goto qla_alloc_rcv_bufs_failed;
1271                 }
1272         }
1273
1274         qla_init_hw_rcv_descriptors(ha, RDS_RING_INDEX_NORMAL);
1275
1276         for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1277                 rxb = &ha->rx_buf[i];
1278                 rxb->handle = i;
1279                 if (!(ret = qla_get_mbuf(ha, rxb, NULL, 0))) {
1280                         /*
1281                          * set the physical address in the corresponding
1282                          * descriptor entry in the receive ring/queue for the
1283                          * hba
1284                          */
1285                         qla_set_hw_rcv_desc(ha, RDS_RING_INDEX_NORMAL, i,
1286                                 rxb->handle, rxb->paddr,
1287                                 (rxb->m_head)->m_pkthdr.len);
1288                 } else {
1289                         device_printf(ha->pci_dev,
1290                                 "%s: qla_get_mbuf [standard(%d)] failed\n",
1291                                 __func__, i);
1292                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1293                         goto qla_alloc_rcv_bufs_failed;
1294                 }
1295         }
1296
1297
1298         for (i = 0; i < NUM_RX_JUMBO_DESCRIPTORS; i++) {
1299
1300                 rxb = &ha->rx_jbuf[i];
1301
1302                 ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT, &rxb->map);
1303
1304                 if (ret) {
1305                         device_printf(ha->pci_dev,
1306                                 "%s: dmamap[%d] failed\n", __func__, i);
1307
1308                         for (j = 0; j < i; j++) {
1309                                 bus_dmamap_destroy(ha->rx_tag,
1310                                         ha->rx_jbuf[j].map);
1311                         }
1312                         goto qla_alloc_rcv_bufs_failed;
1313                 }
1314         }
1315
1316         qla_init_hw_rcv_descriptors(ha, RDS_RING_INDEX_JUMBO);
1317
1318         for (i = 0; i < NUM_RX_JUMBO_DESCRIPTORS; i++) {
1319                 rxb = &ha->rx_jbuf[i];
1320                 rxb->handle = i;
1321                 if (!(ret = qla_get_mbuf(ha, rxb, NULL, 1))) {
1322                         /*
1323                          * set the physical address in the corresponding
1324                          * descriptor entry in the receive ring/queue for the
1325                          * hba
1326                          */
1327                         qla_set_hw_rcv_desc(ha, RDS_RING_INDEX_JUMBO, i,
1328                                 rxb->handle, rxb->paddr,
1329                                 (rxb->m_head)->m_pkthdr.len);
1330                 } else {
1331                         device_printf(ha->pci_dev,
1332                                 "%s: qla_get_mbuf [jumbo(%d)] failed\n",
1333                                 __func__, i);
1334                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1335                         goto qla_alloc_rcv_bufs_failed;
1336                 }
1337         }
1338
1339         return (0);
1340
1341 qla_alloc_rcv_bufs_failed:
1342         qla_free_rcv_bufs(ha);
1343         return (ret);
1344 }
1345
1346 static void
1347 qla_free_rcv_bufs(qla_host_t *ha)
1348 {
1349         int             i;
1350         qla_rx_buf_t    *rxb;
1351
1352         for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1353                 rxb = &ha->rx_buf[i];
1354                 if (rxb->m_head != NULL) {
1355                         bus_dmamap_unload(ha->rx_tag, rxb->map);
1356                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1357                         m_freem(rxb->m_head);
1358                         rxb->m_head = NULL;
1359                 }
1360         }
1361
1362         for (i = 0; i < NUM_RX_JUMBO_DESCRIPTORS; i++) {
1363                 rxb = &ha->rx_jbuf[i];
1364                 if (rxb->m_head != NULL) {
1365                         bus_dmamap_unload(ha->rx_tag, rxb->map);
1366                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1367                         m_freem(rxb->m_head);
1368                         rxb->m_head = NULL;
1369                 }
1370         }
1371
1372         if (ha->rx_tag != NULL) {
1373                 bus_dma_tag_destroy(ha->rx_tag);
1374                 ha->rx_tag = NULL;
1375         }
1376
1377         bzero((void *)ha->rx_buf, (sizeof(qla_rx_buf_t) * NUM_RX_DESCRIPTORS));
1378         bzero((void *)ha->rx_jbuf,
1379                 (sizeof(qla_rx_buf_t) * NUM_RX_JUMBO_DESCRIPTORS));
1380
1381         for (i = 0; i < MAX_SDS_RINGS; i++) {
1382                 ha->hw.sds[i].sdsr_next = 0;
1383                 ha->hw.sds[i].rxb_free = NULL;
1384                 ha->hw.sds[i].rx_free = 0;
1385                 ha->hw.sds[i].rxjb_free = NULL;
1386                 ha->hw.sds[i].rxj_free = 0;
1387         }
1388
1389         return;
1390 }
1391
1392 int
1393 qla_get_mbuf(qla_host_t *ha, qla_rx_buf_t *rxb, struct mbuf *nmp,
1394         uint32_t jumbo)
1395 {
1396         register struct mbuf *mp = nmp;
1397         struct ifnet   *ifp;
1398         int             ret = 0;
1399         uint32_t        offset;
1400
1401         QL_DPRINT2((ha->pci_dev, "%s: jumbo(0x%x) enter\n", __func__, jumbo));
1402
1403         ifp = ha->ifp;
1404
1405         if (mp == NULL) {
1406
1407                 if (!jumbo) {
1408                         mp = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1409
1410                         if (mp == NULL) {
1411                                 ha->err_m_getcl++;
1412                                 ret = ENOBUFS;
1413                                 device_printf(ha->pci_dev,
1414                                         "%s: m_getcl failed\n", __func__);
1415                                 goto exit_qla_get_mbuf;
1416                         }
1417                         mp->m_len = mp->m_pkthdr.len = MCLBYTES;
1418                 } else {
1419                         mp = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR,
1420                                 MJUM9BYTES);
1421                         if (mp == NULL) {
1422                                 ha->err_m_getjcl++;
1423                                 ret = ENOBUFS;
1424                                 device_printf(ha->pci_dev,
1425                                         "%s: m_getjcl failed\n", __func__);
1426                                 goto exit_qla_get_mbuf;
1427                         }
1428                         mp->m_len = mp->m_pkthdr.len = MJUM9BYTES;
1429                 }
1430         } else {
1431                 if (!jumbo)
1432                         mp->m_len = mp->m_pkthdr.len = MCLBYTES;
1433                 else
1434                         mp->m_len = mp->m_pkthdr.len = MJUM9BYTES;
1435
1436                 mp->m_data = mp->m_ext.ext_buf;
1437                 mp->m_next = NULL;
1438         }
1439
1440
1441         offset = (uint32_t)((unsigned long long)mp->m_data & 0x7ULL);
1442         if (offset) {
1443                 offset = 8 - offset;
1444                 m_adj(mp, offset);
1445         }
1446
1447         /*
1448          * Using memory from the mbuf cluster pool, invoke the bus_dma
1449          * machinery to arrange the memory mapping.
1450          */
1451         ret = bus_dmamap_load(ha->rx_tag, rxb->map,
1452                                 mtod(mp, void *), mp->m_len,
1453                                 qla_dmamap_callback, &rxb->paddr,
1454                                 BUS_DMA_NOWAIT);
1455         if (ret || !rxb->paddr) {
1456                 m_free(mp);
1457                 rxb->m_head = NULL;
1458                 device_printf(ha->pci_dev,
1459                         "%s: bus_dmamap_load failed\n", __func__);
1460                 ret = -1;
1461                 goto exit_qla_get_mbuf;
1462         }
1463         rxb->m_head = mp;
1464         bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_PREREAD);
1465
1466 exit_qla_get_mbuf:
1467         QL_DPRINT2((ha->pci_dev, "%s: exit ret = 0x%08x\n", __func__, ret));
1468         return (ret);
1469 }
1470
1471 static void
1472 qla_tx_done(void *context, int pending)
1473 {
1474         qla_host_t *ha = context;
1475
1476         qla_hw_tx_done(ha);
1477         qla_start(ha->ifp);
1478 }
1479