sys/dev/qlxgb/qla_os.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2011-2013 Qlogic Corporation
   5  * All rights reserved.
   6  *
   7  *  Redistribution and use in source and binary forms, with or without
   8  *  modification, are permitted provided that the following conditions
   9  *  are met:
  10  *
  11  *  1. Redistributions of source code must retain the above copyright
  12  *     notice, this list of conditions and the following disclaimer.
  13  *  2. Redistributions in binary form must reproduce the above copyright
  14  *     notice, this list of conditions and the following disclaimer in the
  15  *     documentation and/or other materials provided with the distribution.
  16  *
  17  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  18  *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  21  *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  22  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  23  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  25  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  26  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  27  *  POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 /*
  31  * File: qla_os.c
  32  * Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 __FBSDID("$FreeBSD$");
  37
  38 #include "qla_os.h"
  39 #include "qla_reg.h"
  40 #include "qla_hw.h"
  41 #include "qla_def.h"
  42 #include "qla_inline.h"
  43 #include "qla_ver.h"
  44 #include "qla_glbl.h"
  45 #include "qla_dbg.h"
  46
  47 /*
  48  * Some PCI Configuration Space Related Defines
  49  */
  50
  51 #ifndef PCI_VENDOR_QLOGIC
  52 #define PCI_VENDOR_QLOGIC       0x1077
  53 #endif
  54
  55 #ifndef PCI_PRODUCT_QLOGIC_ISP8020
  56 #define PCI_PRODUCT_QLOGIC_ISP8020      0x8020
  57 #endif
  58
  59 #define PCI_QLOGIC_ISP8020 \
  60         ((PCI_PRODUCT_QLOGIC_ISP8020 << 16) | PCI_VENDOR_QLOGIC)
  61
  62 /*
  63  * static functions
  64  */
  65 static int qla_alloc_parent_dma_tag(qla_host_t *ha);
  66 static void qla_free_parent_dma_tag(qla_host_t *ha);
  67 static int qla_alloc_xmt_bufs(qla_host_t *ha);
  68 static void qla_free_xmt_bufs(qla_host_t *ha);
  69 static int qla_alloc_rcv_bufs(qla_host_t *ha);
  70 static void qla_free_rcv_bufs(qla_host_t *ha);
  71
  72 static void qla_init_ifnet(device_t dev, qla_host_t *ha);
  73 static int qla_sysctl_get_stats(SYSCTL_HANDLER_ARGS);
  74 static void qla_release(qla_host_t *ha);
  75 static void qla_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs,
  76                 int error);
  77 static void qla_stop(qla_host_t *ha);
  78 static int qla_send(qla_host_t *ha, struct mbuf **m_headp);
  79 static void qla_tx_done(void *context, int pending);
  80
  81 /*
  82  * Hooks to the Operating Systems
  83  */
  84 static int qla_pci_probe (device_t);
  85 static int qla_pci_attach (device_t);
  86 static int qla_pci_detach (device_t);
  87
  88 static void qla_init(void *arg);
  89 static int qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data);
  90 static int qla_media_change(struct ifnet *ifp);
  91 static void qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr);
  92
  93 static device_method_t qla_pci_methods[] = {
  94         /* Device interface */
  95         DEVMETHOD(device_probe, qla_pci_probe),
  96         DEVMETHOD(device_attach, qla_pci_attach),
  97         DEVMETHOD(device_detach, qla_pci_detach),
  98         { 0, 0 }
  99 };
 100
 101 static driver_t qla_pci_driver = {
 102         "ql", qla_pci_methods, sizeof (qla_host_t),
 103 };
 104
 105 static devclass_t qla80xx_devclass;
 106
 107 DRIVER_MODULE(qla80xx, pci, qla_pci_driver, qla80xx_devclass, 0, 0);
 108
 109 MODULE_DEPEND(qla80xx, pci, 1, 1, 1);
 110 MODULE_DEPEND(qla80xx, ether, 1, 1, 1);
 111
 112 MALLOC_DEFINE(M_QLA8XXXBUF, "qla80xxbuf", "Buffers for qla80xx driver");
 113
 114 uint32_t std_replenish = 8;
 115 uint32_t jumbo_replenish = 2;
 116 uint32_t rcv_pkt_thres = 128;
 117 uint32_t rcv_pkt_thres_d = 32;
 118 uint32_t snd_pkt_thres = 16;
 119 uint32_t free_pkt_thres = (NUM_TX_DESCRIPTORS / 2);
 120
 121 static char dev_str[64];
 122
 123 /*
 124  * Name:        qla_pci_probe
 125  * Function:    Validate the PCI device to be a QLA80XX device
 126  */
 127 static int
 128 qla_pci_probe(device_t dev)
 129 {
 130         switch ((pci_get_device(dev) << 16) | (pci_get_vendor(dev))) {
 131         case PCI_QLOGIC_ISP8020:
 132                 snprintf(dev_str, sizeof(dev_str), "%s v%d.%d.%d",
 133                         "Qlogic ISP 80xx PCI CNA Adapter-Ethernet Function",
 134                         QLA_VERSION_MAJOR, QLA_VERSION_MINOR,
 135                         QLA_VERSION_BUILD);
 136                 device_set_desc(dev, dev_str);
 137                 break;
 138         default:
 139                 return (ENXIO);
 140         }
 141
 142         if (bootverbose)
 143                 printf("%s: %s\n ", __func__, dev_str);
 144
 145         return (BUS_PROBE_DEFAULT);
 146 }
 147
 148 static void
 149 qla_add_sysctls(qla_host_t *ha)
 150 {
 151         device_t dev = ha->pci_dev;
 152
 153         SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
 154             SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 155             OID_AUTO, "stats", CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
 156             (void *)ha, 0, qla_sysctl_get_stats, "I", "Statistics");
 157
 158         SYSCTL_ADD_STRING(device_get_sysctl_ctx(dev),
 159                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 160                 OID_AUTO, "fw_version", CTLFLAG_RD,
 161                 ha->fw_ver_str, 0, "firmware version");
 162
 163         dbg_level = 0;
 164         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 165                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 166                 OID_AUTO, "debug", CTLFLAG_RW,
 167                 &dbg_level, dbg_level, "Debug Level");
 168
 169         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 170                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 171                 OID_AUTO, "std_replenish", CTLFLAG_RW,
 172                 &std_replenish, std_replenish,
 173                 "Threshold for Replenishing Standard Frames");
 174
 175         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 176                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 177                 OID_AUTO, "jumbo_replenish", CTLFLAG_RW,
 178                 &jumbo_replenish, jumbo_replenish,
 179                 "Threshold for Replenishing Jumbo Frames");
 180
 181         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 182                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 183                 OID_AUTO, "rcv_pkt_thres",  CTLFLAG_RW,
 184                 &rcv_pkt_thres, rcv_pkt_thres,
 185                 "Threshold for # of rcv pkts to trigger indication isr");
 186
 187         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 188                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 189                 OID_AUTO, "rcv_pkt_thres_d",  CTLFLAG_RW,
 190                 &rcv_pkt_thres_d, rcv_pkt_thres_d,
 191                 "Threshold for # of rcv pkts to trigger indication defered");
 192
 193         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 194                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 195                 OID_AUTO, "snd_pkt_thres",  CTLFLAG_RW,
 196                 &snd_pkt_thres, snd_pkt_thres,
 197                 "Threshold for # of snd packets");
 198
 199         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 200                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 201                 OID_AUTO, "free_pkt_thres",  CTLFLAG_RW,
 202                 &free_pkt_thres, free_pkt_thres,
 203                 "Threshold for # of packets to free at a time");
 204
 205         return;
 206 }
 207
 208 static void
 209 qla_watchdog(void *arg)
 210 {
 211         qla_host_t *ha = arg;
 212         qla_hw_t *hw;
 213         struct ifnet *ifp;
 214
 215         hw = &ha->hw;
 216         ifp = ha->ifp;
 217
 218         if (ha->flags.qla_watchdog_exit)
 219                 return;
 220
 221         if (!ha->flags.qla_watchdog_pause) {
 222                 if (qla_le32_to_host(*(hw->tx_cons)) != hw->txr_comp) {
 223                         taskqueue_enqueue(ha->tx_tq, &ha->tx_task);
 224                 } else if ((ifp->if_snd.ifq_head != NULL) && QL_RUNNING(ifp)) {
 225                         taskqueue_enqueue(ha->tx_tq, &ha->tx_task);
 226                 }
 227         }
 228         ha->watchdog_ticks = (ha->watchdog_ticks + 1) % 1000;
 229         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 230                 qla_watchdog, ha);
 231 }
 232
 233 /*
 234  * Name:        qla_pci_attach
 235  * Function:    attaches the device to the operating system
 236  */
 237 static int
 238 qla_pci_attach(device_t dev)
 239 {
 240         qla_host_t *ha = NULL;
 241         uint32_t rsrc_len, i;
 242
 243         QL_DPRINT2((dev, "%s: enter\n", __func__));
 244
 245         if ((ha = device_get_softc(dev)) == NULL) {
 246                 device_printf(dev, "cannot get softc\n");
 247                 return (ENOMEM);
 248         }
 249
 250         memset(ha, 0, sizeof (qla_host_t));
 251
 252         if (pci_get_device(dev) != PCI_PRODUCT_QLOGIC_ISP8020) {
 253                 device_printf(dev, "device is not ISP8020\n");
 254                 return (ENXIO);
 255         }
 256
 257         ha->pci_func = pci_get_function(dev);
 258
 259         ha->pci_dev = dev;
 260
 261         pci_enable_busmaster(dev);
 262
 263         ha->reg_rid = PCIR_BAR(0);
 264         ha->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ha->reg_rid,
 265                                 RF_ACTIVE);
 266
 267         if (ha->pci_reg == NULL) {
 268                 device_printf(dev, "unable to map any ports\n");
 269                 goto qla_pci_attach_err;
 270         }
 271
 272         rsrc_len = (uint32_t) bus_get_resource_count(dev, SYS_RES_MEMORY,
 273                                         ha->reg_rid);
 274
 275         mtx_init(&ha->hw_lock, "qla80xx_hw_lock", MTX_NETWORK_LOCK, MTX_DEF);
 276         mtx_init(&ha->tx_lock, "qla80xx_tx_lock", MTX_NETWORK_LOCK, MTX_DEF);
 277         mtx_init(&ha->rx_lock, "qla80xx_rx_lock", MTX_NETWORK_LOCK, MTX_DEF);
 278         mtx_init(&ha->rxj_lock, "qla80xx_rxj_lock", MTX_NETWORK_LOCK, MTX_DEF);
 279         ha->flags.lock_init = 1;
 280
 281         ha->msix_count = pci_msix_count(dev);
 282
 283         if (ha->msix_count < qla_get_msix_count(ha)) {
 284                 device_printf(dev, "%s: msix_count[%d] not enough\n", __func__,
 285                         ha->msix_count);
 286                 goto qla_pci_attach_err;
 287         }
 288
 289         QL_DPRINT2((dev, "%s: ha %p irq %p pci_func 0x%x rsrc_count 0x%08x"
 290                 " msix_count 0x%x pci_reg %p\n", __func__, ha,
 291                 ha->irq, ha->pci_func, rsrc_len, ha->msix_count, ha->pci_reg));
 292
 293         ha->msix_count = qla_get_msix_count(ha);
 294
 295         if (pci_alloc_msix(dev, &ha->msix_count)) {
 296                 device_printf(dev, "%s: pci_alloc_msi[%d] failed\n", __func__,
 297                         ha->msix_count);
 298                 ha->msix_count = 0;
 299                 goto qla_pci_attach_err;
 300         }
 301
 302         TASK_INIT(&ha->tx_task, 0, qla_tx_done, ha);
 303         ha->tx_tq = taskqueue_create_fast("qla_txq", M_NOWAIT,
 304                         taskqueue_thread_enqueue, &ha->tx_tq);
 305         taskqueue_start_threads(&ha->tx_tq, 1, PI_NET, "%s txq",
 306                 device_get_nameunit(ha->pci_dev));
 307
 308         for (i = 0; i < ha->msix_count; i++) {
 309                 ha->irq_vec[i].irq_rid = i+1;
 310                 ha->irq_vec[i].ha = ha;
 311
 312                 ha->irq_vec[i].irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 313                                         &ha->irq_vec[i].irq_rid,
 314                                         (RF_ACTIVE | RF_SHAREABLE));
 315
 316                 if (ha->irq_vec[i].irq == NULL) {
 317                         device_printf(dev, "could not allocate interrupt\n");
 318                         goto qla_pci_attach_err;
 319                 }
 320
 321                 if (bus_setup_intr(dev, ha->irq_vec[i].irq,
 322                         (INTR_TYPE_NET | INTR_MPSAFE),
 323                         NULL, qla_isr, &ha->irq_vec[i],
 324                         &ha->irq_vec[i].handle)) {
 325                         device_printf(dev, "could not setup interrupt\n");
 326                         goto qla_pci_attach_err;
 327                 }
 328
 329                 TASK_INIT(&ha->irq_vec[i].rcv_task, 0, qla_rcv,\
 330                         &ha->irq_vec[i]);
 331
 332                 ha->irq_vec[i].rcv_tq = taskqueue_create_fast("qla_rcvq",
 333                         M_NOWAIT, taskqueue_thread_enqueue,
 334                         &ha->irq_vec[i].rcv_tq);
 335
 336                 taskqueue_start_threads(&ha->irq_vec[i].rcv_tq, 1, PI_NET,
 337                         "%s rcvq",
 338                         device_get_nameunit(ha->pci_dev));
 339         }
 340
 341         qla_add_sysctls(ha);
 342
 343         /* add hardware specific sysctls */
 344         qla_hw_add_sysctls(ha);
 345
 346         /* initialize hardware */
 347         if (qla_init_hw(ha)) {
 348                 device_printf(dev, "%s: qla_init_hw failed\n", __func__);
 349                 goto qla_pci_attach_err;
 350         }
 351
 352         device_printf(dev, "%s: firmware[%d.%d.%d.%d]\n", __func__,
 353                 ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 354                 ha->fw_ver_build);
 355
 356         snprintf(ha->fw_ver_str, sizeof(ha->fw_ver_str), "%d.%d.%d.%d",
 357                         ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 358                         ha->fw_ver_build);
 359
 360         //qla_get_hw_caps(ha);
 361         qla_read_mac_addr(ha);
 362
 363         /* allocate parent dma tag */
 364         if (qla_alloc_parent_dma_tag(ha)) {
 365                 device_printf(dev, "%s: qla_alloc_parent_dma_tag failed\n",
 366                         __func__);
 367                 goto qla_pci_attach_err;
 368         }
 369
 370         /* alloc all dma buffers */
 371         if (qla_alloc_dma(ha)) {
 372                 device_printf(dev, "%s: qla_alloc_dma failed\n", __func__);
 373                 goto qla_pci_attach_err;
 374         }
 375
 376         /* create the o.s ethernet interface */
 377         qla_init_ifnet(dev, ha);
 378
 379         ha->flags.qla_watchdog_active = 1;
 380         ha->flags.qla_watchdog_pause = 1;
 381
 382         callout_init(&ha->tx_callout, 1);
 383
 384         /* create ioctl device interface */
 385         if (qla_make_cdev(ha)) {
 386                 device_printf(dev, "%s: qla_make_cdev failed\n", __func__);
 387                 goto qla_pci_attach_err;
 388         }
 389
 390         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 391                 qla_watchdog, ha);
 392
 393         QL_DPRINT2((dev, "%s: exit 0\n", __func__));
 394         return (0);
 395
 396 qla_pci_attach_err:
 397
 398         qla_release(ha);
 399
 400         QL_DPRINT2((dev, "%s: exit ENXIO\n", __func__));
 401         return (ENXIO);
 402 }
 403
 404 /*
 405  * Name:        qla_pci_detach
 406  * Function:    Unhooks the device from the operating system
 407  */
 408 static int
 409 qla_pci_detach(device_t dev)
 410 {
 411         qla_host_t *ha = NULL;
 412         struct ifnet *ifp;
 413         int i;
 414
 415         QL_DPRINT2((dev, "%s: enter\n", __func__));
 416
 417         if ((ha = device_get_softc(dev)) == NULL) {
 418                 device_printf(dev, "cannot get softc\n");
 419                 return (ENOMEM);
 420         }
 421
 422         ifp = ha->ifp;
 423
 424         QLA_LOCK(ha, __func__);
 425         qla_stop(ha);
 426         QLA_UNLOCK(ha, __func__);
 427
 428         if (ha->tx_tq) {
 429                 taskqueue_drain(ha->tx_tq, &ha->tx_task);
 430                 taskqueue_free(ha->tx_tq);
 431         }
 432
 433         for (i = 0; i < ha->msix_count; i++) {
 434                 taskqueue_drain(ha->irq_vec[i].rcv_tq,
 435                         &ha->irq_vec[i].rcv_task);
 436                 taskqueue_free(ha->irq_vec[i].rcv_tq);
 437         }
 438
 439         qla_release(ha);
 440
 441         QL_DPRINT2((dev, "%s: exit\n", __func__));
 442
 443         return (0);
 444 }
 445
 446 /*
 447  * SYSCTL Related Callbacks
 448  */
 449 static int
 450 qla_sysctl_get_stats(SYSCTL_HANDLER_ARGS)
 451 {
 452         int err, ret = 0;
 453         qla_host_t *ha;
 454
 455         err = sysctl_handle_int(oidp, &ret, 0, req);
 456
 457         if (err)
 458                 return (err);
 459
 460         ha = (qla_host_t *)arg1;
 461         //qla_get_stats(ha);
 462         QL_DPRINT2((ha->pci_dev, "%s: called ret %d\n", __func__, ret));
 463         return (err);
 464 }
 465
 466 /*
 467  * Name:        qla_release
 468  * Function:    Releases the resources allocated for the device
 469  */
 470 static void
 471 qla_release(qla_host_t *ha)
 472 {
 473         device_t dev;
 474         int i;
 475
 476         dev = ha->pci_dev;
 477
 478         qla_del_cdev(ha);
 479
 480         if (ha->flags.qla_watchdog_active)
 481                 ha->flags.qla_watchdog_exit = 1;
 482
 483         callout_stop(&ha->tx_callout);
 484         qla_mdelay(__func__, 100);
 485
 486         if (ha->ifp != NULL)
 487                 ether_ifdetach(ha->ifp);
 488
 489         qla_free_dma(ha);
 490         qla_free_parent_dma_tag(ha);
 491
 492         for (i = 0; i < ha->msix_count; i++) {
 493                 if (ha->irq_vec[i].handle)
 494                         (void)bus_teardown_intr(dev, ha->irq_vec[i].irq,
 495                                 ha->irq_vec[i].handle);
 496                 if (ha->irq_vec[i].irq)
 497                         (void) bus_release_resource(dev, SYS_RES_IRQ,
 498                                 ha->irq_vec[i].irq_rid,
 499                                 ha->irq_vec[i].irq);
 500         }
 501         if (ha->msix_count)
 502                 pci_release_msi(dev);
 503
 504         if (ha->flags.lock_init) {
 505                 mtx_destroy(&ha->tx_lock);
 506                 mtx_destroy(&ha->rx_lock);
 507                 mtx_destroy(&ha->rxj_lock);
 508                 mtx_destroy(&ha->hw_lock);
 509         }
 510
 511         if (ha->pci_reg)
 512                 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid,
 513                                 ha->pci_reg);
 514 }
 515
 516 /*
 517  * DMA Related Functions
 518  */
 519
 520 static void
 521 qla_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 522 {
 523         *((bus_addr_t *)arg) = 0;
 524
 525         if (error) {
 526                 printf("%s: bus_dmamap_load failed (%d)\n", __func__, error);
 527                 return;
 528         }
 529
 530         QL_ASSERT((nsegs == 1), ("%s: %d segments returned!", __func__, nsegs));
 531
 532         *((bus_addr_t *)arg) = segs[0].ds_addr;
 533
 534         return;
 535 }
 536
 537 int
 538 qla_alloc_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 539 {
 540         int             ret = 0;
 541         device_t        dev;
 542         bus_addr_t      b_addr;
 543
 544         dev = ha->pci_dev;
 545
 546         QL_DPRINT2((dev, "%s: enter\n", __func__));
 547
 548         ret = bus_dma_tag_create(
 549                         ha->parent_tag,/* parent */
 550                         dma_buf->alignment,
 551                         ((bus_size_t)(1ULL << 32)),/* boundary */
 552                         BUS_SPACE_MAXADDR,      /* lowaddr */
 553                         BUS_SPACE_MAXADDR,      /* highaddr */
 554                         NULL, NULL,             /* filter, filterarg */
 555                         dma_buf->size,          /* maxsize */
 556                         1,                      /* nsegments */
 557                         dma_buf->size,          /* maxsegsize */
 558                         0,                      /* flags */
 559                         NULL, NULL,             /* lockfunc, lockarg */
 560                         &dma_buf->dma_tag);
 561
 562         if (ret) {
 563                 device_printf(dev, "%s: could not create dma tag\n", __func__);
 564                 goto qla_alloc_dmabuf_exit;
 565         }
 566         ret = bus_dmamem_alloc(dma_buf->dma_tag,
 567                         (void **)&dma_buf->dma_b,
 568                         (BUS_DMA_ZERO | BUS_DMA_COHERENT | BUS_DMA_NOWAIT),
 569                         &dma_buf->dma_map);
 570         if (ret) {
 571                 bus_dma_tag_destroy(dma_buf->dma_tag);
 572                 device_printf(dev, "%s: bus_dmamem_alloc failed\n", __func__);
 573                 goto qla_alloc_dmabuf_exit;
 574         }
 575
 576         ret = bus_dmamap_load(dma_buf->dma_tag,
 577                         dma_buf->dma_map,
 578                         dma_buf->dma_b,
 579                         dma_buf->size,
 580                         qla_dmamap_callback,
 581                         &b_addr, BUS_DMA_NOWAIT);
 582
 583         if (ret || !b_addr) {
 584                 bus_dma_tag_destroy(dma_buf->dma_tag);
 585                 bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b,
 586                         dma_buf->dma_map);
 587                 ret = -1;
 588                 goto qla_alloc_dmabuf_exit;
 589         }
 590
 591         dma_buf->dma_addr = b_addr;
 592
 593 qla_alloc_dmabuf_exit:
 594         QL_DPRINT2((dev, "%s: exit ret 0x%08x tag %p map %p b %p sz 0x%x\n",
 595                 __func__, ret, (void *)dma_buf->dma_tag,
 596                 (void *)dma_buf->dma_map, (void *)dma_buf->dma_b,
 597                 dma_buf->size));
 598
 599         return ret;
 600 }
 601
 602 void
 603 qla_free_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 604 {
 605         bus_dmamap_unload(dma_buf->dma_tag, dma_buf->dma_map);
 606         bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b, dma_buf->dma_map);
 607         bus_dma_tag_destroy(dma_buf->dma_tag);
 608 }
 609
 610 static int
 611 qla_alloc_parent_dma_tag(qla_host_t *ha)
 612 {
 613         int             ret;
 614         device_t        dev;
 615
 616         dev = ha->pci_dev;
 617
 618         /*
 619          * Allocate parent DMA Tag
 620          */
 621         ret = bus_dma_tag_create(
 622                         bus_get_dma_tag(dev),   /* parent */
 623                         1,((bus_size_t)(1ULL << 32)),/* alignment, boundary */
 624                         BUS_SPACE_MAXADDR,      /* lowaddr */
 625                         BUS_SPACE_MAXADDR,      /* highaddr */
 626                         NULL, NULL,             /* filter, filterarg */
 627                         BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
 628                         0,                      /* nsegments */
 629                         BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
 630                         0,                      /* flags */
 631                         NULL, NULL,             /* lockfunc, lockarg */
 632                         &ha->parent_tag);
 633
 634         if (ret) {
 635                 device_printf(dev, "%s: could not create parent dma tag\n",
 636                         __func__);
 637                 return (-1);
 638         }
 639
 640         ha->flags.parent_tag = 1;
 641
 642         return (0);
 643 }
 644
 645 static void
 646 qla_free_parent_dma_tag(qla_host_t *ha)
 647 {
 648         if (ha->flags.parent_tag) {
 649                 bus_dma_tag_destroy(ha->parent_tag);
 650                 ha->flags.parent_tag = 0;
 651         }
 652 }
 653
 654 /*
 655  * Name: qla_init_ifnet
 656  * Function: Creates the Network Device Interface and Registers it with the O.S
 657  */
 658
 659 static void
 660 qla_init_ifnet(device_t dev, qla_host_t *ha)
 661 {
 662         struct ifnet *ifp;
 663
 664         QL_DPRINT2((dev, "%s: enter\n", __func__));
 665
 666         ifp = ha->ifp = if_alloc(IFT_ETHER);
 667
 668         if (ifp == NULL)
 669                 panic("%s: cannot if_alloc()\n", device_get_nameunit(dev));
 670
 671         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 672
 673         ifp->if_mtu = ETHERMTU;
 674         ifp->if_baudrate = IF_Gbps(10);
 675         ifp->if_init = qla_init;
 676         ifp->if_softc = ha;
 677         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 678         ifp->if_ioctl = qla_ioctl;
 679         ifp->if_start = qla_start;
 680
 681         IFQ_SET_MAXLEN(&ifp->if_snd, qla_get_ifq_snd_maxlen(ha));
 682         ifp->if_snd.ifq_drv_maxlen = qla_get_ifq_snd_maxlen(ha);
 683         IFQ_SET_READY(&ifp->if_snd);
 684
 685         ha->max_frame_size = ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 686
 687         ether_ifattach(ifp, qla_get_mac_addr(ha));
 688
 689         ifp->if_capabilities = IFCAP_HWCSUM |
 690                                 IFCAP_TSO4 |
 691                                 IFCAP_JUMBO_MTU;
 692
 693         ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
 694         ifp->if_capabilities |= IFCAP_LINKSTATE;
 695
 696 #if defined(__FreeBSD_version) && (__FreeBSD_version < 900002)
 697         ifp->if_timer = 0;
 698         ifp->if_watchdog = NULL;
 699 #endif /* #if defined(__FreeBSD_version) && (__FreeBSD_version < 900002) */
 700
 701         ifp->if_capenable = ifp->if_capabilities;
 702
 703         ifp->if_hdrlen = sizeof(struct ether_vlan_header);
 704
 705         ifmedia_init(&ha->media, IFM_IMASK, qla_media_change, qla_media_status);
 706
 707         ifmedia_add(&ha->media, (IFM_ETHER | qla_get_optics(ha) | IFM_FDX), 0,
 708                 NULL);
 709         ifmedia_add(&ha->media, (IFM_ETHER | IFM_AUTO), 0, NULL);
 710
 711         ifmedia_set(&ha->media, (IFM_ETHER | IFM_AUTO));
 712
 713         QL_DPRINT2((dev, "%s: exit\n", __func__));
 714
 715         return;
 716 }
 717
 718 static void
 719 qla_init_locked(qla_host_t *ha)
 720 {
 721         struct ifnet *ifp = ha->ifp;
 722
 723         qla_stop(ha);
 724
 725         if (qla_alloc_xmt_bufs(ha) != 0)
 726                 return;
 727
 728         if (qla_alloc_rcv_bufs(ha) != 0)
 729                 return;
 730
 731         if (qla_config_lro(ha))
 732                 return;
 733
 734         bcopy(IF_LLADDR(ha->ifp), ha->hw.mac_addr, ETHER_ADDR_LEN);
 735
 736         ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_TSO;
 737
 738         ha->flags.stop_rcv = 0;
 739         if (qla_init_hw_if(ha) == 0) {
 740                 ifp = ha->ifp;
 741                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
 742                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 743                 ha->flags.qla_watchdog_pause = 0;
 744         }
 745
 746         return;
 747 }
 748
 749 static void
 750 qla_init(void *arg)
 751 {
 752         qla_host_t *ha;
 753
 754         ha = (qla_host_t *)arg;
 755
 756         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
 757
 758         QLA_LOCK(ha, __func__);
 759         qla_init_locked(ha);
 760         QLA_UNLOCK(ha, __func__);
 761
 762         QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__));
 763 }
 764
 765 static u_int
 766 qla_copy_maddr(void *arg, struct sockaddr_dl *sdl, u_int mcnt)
 767 {
 768         uint8_t *mta = arg;
 769
 770         if (mcnt == Q8_MAX_NUM_MULTICAST_ADDRS)
 771                 return (0);
 772         bcopy(LLADDR(sdl), &mta[mcnt * Q8_MAC_ADDR_LEN], Q8_MAC_ADDR_LEN);
 773
 774         return (1);
 775 }
 776
 777 static void
 778 qla_set_multi(qla_host_t *ha, uint32_t add_multi)
 779 {
 780         uint8_t mta[Q8_MAX_NUM_MULTICAST_ADDRS * Q8_MAC_ADDR_LEN];
 781         struct ifnet *ifp = ha->ifp;
 782         int mcnt;
 783
 784         mcnt = if_foreach_llmaddr(ifp, qla_copy_maddr, mta);
 785         qla_hw_set_multi(ha, mta, mcnt, add_multi);
 786
 787         return;
 788 }
 789
 790 static int
 791 qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 792 {
 793         int ret = 0;
 794         struct ifreq *ifr = (struct ifreq *)data;
 795         struct ifaddr *ifa = (struct ifaddr *)data;
 796         qla_host_t *ha;
 797
 798         ha = (qla_host_t *)ifp->if_softc;
 799
 800         switch (cmd) {
 801         case SIOCSIFADDR:
 802                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFADDR (0x%lx)\n",
 803                         __func__, cmd));
 804
 805                 if (ifa->ifa_addr->sa_family == AF_INET) {
 806                         ifp->if_flags |= IFF_UP;
 807                         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 808                                 QLA_LOCK(ha, __func__);
 809                                 qla_init_locked(ha);
 810                                 QLA_UNLOCK(ha, __func__);
 811                         }
 812                 QL_DPRINT4((ha->pci_dev,
 813                         "%s: SIOCSIFADDR (0x%lx) ipv4 [0x%08x]\n",
 814                         __func__, cmd, ntohl(IA_SIN(ifa)->sin_addr.s_addr)));
 815
 816                         arp_ifinit(ifp, ifa);
 817                         if (ntohl(IA_SIN(ifa)->sin_addr.s_addr) != INADDR_ANY) {
 818                                 qla_config_ipv4_addr(ha,
 819                                         (IA_SIN(ifa)->sin_addr.s_addr));
 820                         }
 821                 } else {
 822                         ether_ioctl(ifp, cmd, data);
 823                 }
 824                 break;
 825
 826         case SIOCSIFMTU:
 827                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFMTU (0x%lx)\n",
 828                         __func__, cmd));
 829
 830                 if (ifr->ifr_mtu > QLA_MAX_FRAME_SIZE - ETHER_HDR_LEN) {
 831                         ret = EINVAL;
 832                 } else {
 833                         QLA_LOCK(ha, __func__);
 834                         ifp->if_mtu = ifr->ifr_mtu;
 835                         ha->max_frame_size =
 836                                 ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 837                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 838                                 ret = qla_set_max_mtu(ha, ha->max_frame_size,
 839                                         (ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id);
 840                         }
 841                         QLA_UNLOCK(ha, __func__);
 842
 843                         if (ret)
 844                                 ret = EINVAL;
 845                 }
 846
 847                 break;
 848
 849         case SIOCSIFFLAGS:
 850                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFFLAGS (0x%lx)\n",
 851                         __func__, cmd));
 852
 853                 if (ifp->if_flags & IFF_UP) {
 854                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 855                                 if ((ifp->if_flags ^ ha->if_flags) &
 856                                         IFF_PROMISC) {
 857                                         qla_set_promisc(ha);
 858                                 } else if ((ifp->if_flags ^ ha->if_flags) &
 859                                         IFF_ALLMULTI) {
 860                                         qla_set_allmulti(ha);
 861                                 }
 862                         } else {
 863                                 QLA_LOCK(ha, __func__);
 864                                 qla_init_locked(ha);
 865                                 ha->max_frame_size = ifp->if_mtu +
 866                                         ETHER_HDR_LEN + ETHER_CRC_LEN;
 867                                 ret = qla_set_max_mtu(ha, ha->max_frame_size,
 868                                         (ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id);
 869                                 QLA_UNLOCK(ha, __func__);
 870                         }
 871                 } else {
 872                         QLA_LOCK(ha, __func__);
 873                         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
 874                                 qla_stop(ha);
 875                         ha->if_flags = ifp->if_flags;
 876                         QLA_UNLOCK(ha, __func__);
 877                 }
 878                 break;
 879
 880         case SIOCADDMULTI:
 881                 QL_DPRINT4((ha->pci_dev,
 882                         "%s: %s (0x%lx)\n", __func__, "SIOCADDMULTI", cmd));
 883
 884                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 885                         qla_set_multi(ha, 1);
 886                 }
 887                 break;
 888
 889         case SIOCDELMULTI:
 890                 QL_DPRINT4((ha->pci_dev,
 891                         "%s: %s (0x%lx)\n", __func__, "SIOCDELMULTI", cmd));
 892
 893                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 894                         qla_set_multi(ha, 0);
 895                 }
 896                 break;
 897
 898         case SIOCSIFMEDIA:
 899         case SIOCGIFMEDIA:
 900                 QL_DPRINT4((ha->pci_dev,
 901                         "%s: SIOCSIFMEDIA/SIOCGIFMEDIA (0x%lx)\n",
 902                         __func__, cmd));
 903                 ret = ifmedia_ioctl(ifp, ifr, &ha->media, cmd);
 904                 break;
 905
 906         case SIOCSIFCAP:
 907         {
 908                 int mask = ifr->ifr_reqcap ^ ifp->if_capenable;
 909
 910                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFCAP (0x%lx)\n",
 911                         __func__, cmd));
 912
 913                 if (mask & IFCAP_HWCSUM)
 914                         ifp->if_capenable ^= IFCAP_HWCSUM;
 915                 if (mask & IFCAP_TSO4)
 916                         ifp->if_capenable ^= IFCAP_TSO4;
 917                 if (mask & IFCAP_TSO6)
 918                         ifp->if_capenable ^= IFCAP_TSO6;
 919                 if (mask & IFCAP_VLAN_HWTAGGING)
 920                         ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
 921
 922                 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
 923                         qla_init(ha);
 924
 925                 VLAN_CAPABILITIES(ifp);
 926                 break;
 927         }
 928
 929         default:
 930                 QL_DPRINT4((ha->pci_dev, "%s: default (0x%lx)\n",
 931                         __func__, cmd));
 932                 ret = ether_ioctl(ifp, cmd, data);
 933                 break;
 934         }
 935
 936         return (ret);
 937 }
 938
 939 static int
 940 qla_media_change(struct ifnet *ifp)
 941 {
 942         qla_host_t *ha;
 943         struct ifmedia *ifm;
 944         int ret = 0;
 945
 946         ha = (qla_host_t *)ifp->if_softc;
 947
 948         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
 949
 950         ifm = &ha->media;
 951
 952         if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
 953                 ret = EINVAL;
 954
 955         QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__));
 956
 957         return (ret);
 958 }
 959
 960 static void
 961 qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr)
 962 {
 963         qla_host_t *ha;
 964
 965         ha = (qla_host_t *)ifp->if_softc;
 966
 967         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
 968
 969         ifmr->ifm_status = IFM_AVALID;
 970         ifmr->ifm_active = IFM_ETHER;
 971
 972         qla_update_link_state(ha);
 973         if (ha->hw.flags.link_up) {
 974                 ifmr->ifm_status |= IFM_ACTIVE;
 975                 ifmr->ifm_active |= (IFM_FDX | qla_get_optics(ha));
 976         }
 977
 978         QL_DPRINT2((ha->pci_dev, "%s: exit (%s)\n", __func__,\
 979                 (ha->hw.flags.link_up ? "link_up" : "link_down")));
 980
 981         return;
 982 }
 983
 984 void
 985 qla_start(struct ifnet *ifp)
 986 {
 987         struct mbuf    *m_head;
 988         qla_host_t *ha = (qla_host_t *)ifp->if_softc;
 989
 990         QL_DPRINT8((ha->pci_dev, "%s: enter\n", __func__));
 991
 992         if (!mtx_trylock(&ha->tx_lock)) {
 993                 QL_DPRINT8((ha->pci_dev,
 994                         "%s: mtx_trylock(&ha->tx_lock) failed\n", __func__));
 995                 return;
 996         }
 997
 998         if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
 999                 IFF_DRV_RUNNING) {
1000                 QL_DPRINT8((ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__));
1001                 QLA_TX_UNLOCK(ha);
1002                 return;
1003         }
1004
1005         if (!ha->watchdog_ticks)
1006                 qla_update_link_state(ha);
1007
1008         if (!ha->hw.flags.link_up) {
1009                 QL_DPRINT8((ha->pci_dev, "%s: link down\n", __func__));
1010                 QLA_TX_UNLOCK(ha);
1011                 return;
1012         }
1013
1014         while (ifp->if_snd.ifq_head != NULL) {
1015                 IF_DEQUEUE(&ifp->if_snd, m_head);
1016
1017                 if (m_head == NULL) {
1018                         QL_DPRINT8((ha->pci_dev, "%s: m_head == NULL\n",
1019                                 __func__));
1020                         break;
1021                 }
1022
1023                 if (qla_send(ha, &m_head)) {
1024                         if (m_head == NULL)
1025                                 break;
1026                         QL_DPRINT8((ha->pci_dev, "%s: PREPEND\n", __func__));
1027                         ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1028                         IF_PREPEND(&ifp->if_snd, m_head);
1029                         break;
1030                 }
1031                 /* Send a copy of the frame to the BPF listener */
1032                 ETHER_BPF_MTAP(ifp, m_head);
1033         }
1034         QLA_TX_UNLOCK(ha);
1035         QL_DPRINT8((ha->pci_dev, "%s: exit\n", __func__));
1036         return;
1037 }
1038
1039 static int
1040 qla_send(qla_host_t *ha, struct mbuf **m_headp)
1041 {
1042         bus_dma_segment_t       segs[QLA_MAX_SEGMENTS];
1043         bus_dmamap_t            map;
1044         int                     nsegs;
1045         int                     ret = -1;
1046         uint32_t                tx_idx;
1047         struct mbuf *m_head = *m_headp;
1048
1049         QL_DPRINT8((ha->pci_dev, "%s: enter\n", __func__));
1050
1051         if ((ret = bus_dmamap_create(ha->tx_tag, BUS_DMA_NOWAIT, &map))) {
1052                 ha->err_tx_dmamap_create++;
1053                 device_printf(ha->pci_dev,
1054                         "%s: bus_dmamap_create failed[%d, %d]\n",
1055                         __func__, ret, m_head->m_pkthdr.len);
1056                 return (ret);
1057         }
1058
1059         ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head, segs, &nsegs,
1060                         BUS_DMA_NOWAIT);
1061
1062         if (ret == EFBIG) {
1063                 struct mbuf *m;
1064
1065                 QL_DPRINT8((ha->pci_dev, "%s: EFBIG [%d]\n", __func__,
1066                         m_head->m_pkthdr.len));
1067
1068                 m = m_defrag(m_head, M_NOWAIT);
1069                 if (m == NULL) {
1070                         ha->err_tx_defrag++;
1071                         m_freem(m_head);
1072                         *m_headp = NULL;
1073                         device_printf(ha->pci_dev,
1074                                 "%s: m_defrag() = NULL [%d]\n",
1075                                 __func__, ret);
1076                         return (ENOBUFS);
1077                 }
1078                 m_head = m;
1079
1080                 if ((ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head,
1081                                         segs, &nsegs, BUS_DMA_NOWAIT))) {
1082                         ha->err_tx_dmamap_load++;
1083
1084                         device_printf(ha->pci_dev,
1085                                 "%s: bus_dmamap_load_mbuf_sg failed0[%d, %d]\n",
1086                                 __func__, ret, m_head->m_pkthdr.len);
1087
1088                         bus_dmamap_destroy(ha->tx_tag, map);
1089                         if (ret != ENOMEM) {
1090                                 m_freem(m_head);
1091                                 *m_headp = NULL;
1092                         }
1093                         return (ret);
1094                 }
1095         } else if (ret) {
1096                 ha->err_tx_dmamap_load++;
1097
1098                 device_printf(ha->pci_dev,
1099                         "%s: bus_dmamap_load_mbuf_sg failed1[%d, %d]\n",
1100                         __func__, ret, m_head->m_pkthdr.len);
1101
1102                 bus_dmamap_destroy(ha->tx_tag, map);
1103
1104                 if (ret != ENOMEM) {
1105                         m_freem(m_head);
1106                         *m_headp = NULL;
1107                 }
1108                 return (ret);
1109         }
1110
1111         QL_ASSERT((nsegs != 0), ("qla_send: empty packet"));
1112
1113         bus_dmamap_sync(ha->tx_tag, map, BUS_DMASYNC_PREWRITE);
1114
1115         if (!(ret = qla_hw_send(ha, segs, nsegs, &tx_idx, m_head))) {
1116                 ha->tx_buf[tx_idx].m_head = m_head;
1117                 ha->tx_buf[tx_idx].map = map;
1118         } else {
1119                 if (ret == EINVAL) {
1120                         m_freem(m_head);
1121                         *m_headp = NULL;
1122                 }
1123         }
1124
1125         QL_DPRINT8((ha->pci_dev, "%s: exit\n", __func__));
1126         return (ret);
1127 }
1128
1129 static void
1130 qla_stop(qla_host_t *ha)
1131 {
1132         struct ifnet *ifp = ha->ifp;
1133         device_t        dev;
1134
1135         dev = ha->pci_dev;
1136
1137         ha->flags.qla_watchdog_pause = 1;
1138         qla_mdelay(__func__, 100);
1139
1140         ha->flags.stop_rcv = 1;
1141         qla_hw_stop_rcv(ha);
1142
1143         qla_del_hw_if(ha);
1144
1145         qla_free_lro(ha);
1146
1147         qla_free_xmt_bufs(ha);
1148         qla_free_rcv_bufs(ha);
1149
1150         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
1151
1152         return;
1153 }
1154
1155 /*
1156  * Buffer Management Functions for Transmit and Receive Rings
1157  */
1158 static int
1159 qla_alloc_xmt_bufs(qla_host_t *ha)
1160 {
1161         if (bus_dma_tag_create(NULL,    /* parent */
1162                 1, 0,    /* alignment, bounds */
1163                 BUS_SPACE_MAXADDR,       /* lowaddr */
1164                 BUS_SPACE_MAXADDR,       /* highaddr */
1165                 NULL, NULL,      /* filter, filterarg */
1166                 QLA_MAX_TSO_FRAME_SIZE,     /* maxsize */
1167                 QLA_MAX_SEGMENTS,        /* nsegments */
1168                 PAGE_SIZE,        /* maxsegsize */
1169                 BUS_DMA_ALLOCNOW,        /* flags */
1170                 NULL,    /* lockfunc */
1171                 NULL,    /* lockfuncarg */
1172                 &ha->tx_tag)) {
1173                 device_printf(ha->pci_dev, "%s: tx_tag alloc failed\n",
1174                         __func__);
1175                 return (ENOMEM);
1176         }
1177         bzero((void *)ha->tx_buf, (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1178
1179         return 0;
1180 }
1181
1182 /*
1183  * Release mbuf after it sent on the wire
1184  */
1185 static void
1186 qla_clear_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb)
1187 {
1188         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
1189
1190         if (txb->m_head) {
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 static int
1219 qla_alloc_rcv_bufs(qla_host_t *ha)
1220 {
1221         int             i, j, ret = 0;
1222         qla_rx_buf_t    *rxb;
1223
1224         if (bus_dma_tag_create(NULL,    /* parent */
1225                         1, 0,    /* alignment, bounds */
1226                         BUS_SPACE_MAXADDR,       /* lowaddr */
1227                         BUS_SPACE_MAXADDR,       /* highaddr */
1228                         NULL, NULL,      /* filter, filterarg */
1229                         MJUM9BYTES,     /* maxsize */
1230                         1,        /* nsegments */
1231                         MJUM9BYTES,        /* maxsegsize */
1232                         BUS_DMA_ALLOCNOW,        /* flags */
1233                         NULL,    /* lockfunc */
1234                         NULL,    /* lockfuncarg */
1235                         &ha->rx_tag)) {
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                 rxb = &ha->rx_buf[i];
1256
1257                 ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT, &rxb->map);
1258
1259                 if (ret) {
1260                         device_printf(ha->pci_dev,
1261                                 "%s: dmamap[%d] failed\n", __func__, i);
1262
1263                         for (j = 0; j < i; j++) {
1264                                 bus_dmamap_destroy(ha->rx_tag,
1265                                         ha->rx_buf[j].map);
1266                         }
1267                         goto qla_alloc_rcv_bufs_failed;
1268                 }
1269         }
1270
1271         qla_init_hw_rcv_descriptors(ha, RDS_RING_INDEX_NORMAL);
1272
1273         for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1274                 rxb = &ha->rx_buf[i];
1275                 rxb->handle = i;
1276                 if (!(ret = qla_get_mbuf(ha, rxb, NULL, 0))) {
1277                         /*
1278                          * set the physical address in the corresponding
1279                          * descriptor entry in the receive ring/queue for the
1280                          * hba
1281                          */
1282                         qla_set_hw_rcv_desc(ha, RDS_RING_INDEX_NORMAL, i,
1283                                 rxb->handle, rxb->paddr,
1284                                 (rxb->m_head)->m_pkthdr.len);
1285                 } else {
1286                         device_printf(ha->pci_dev,
1287                                 "%s: qla_get_mbuf [standard(%d)] failed\n",
1288                                 __func__, i);
1289                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1290                         goto qla_alloc_rcv_bufs_failed;
1291                 }
1292         }
1293
1294         for (i = 0; i < NUM_RX_JUMBO_DESCRIPTORS; i++) {
1295                 rxb = &ha->rx_jbuf[i];
1296
1297                 ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT, &rxb->map);
1298
1299                 if (ret) {
1300                         device_printf(ha->pci_dev,
1301                                 "%s: dmamap[%d] failed\n", __func__, i);
1302
1303                         for (j = 0; j < i; j++) {
1304                                 bus_dmamap_destroy(ha->rx_tag,
1305                                         ha->rx_jbuf[j].map);
1306                         }
1307                         goto qla_alloc_rcv_bufs_failed;
1308                 }
1309         }
1310
1311         qla_init_hw_rcv_descriptors(ha, RDS_RING_INDEX_JUMBO);
1312
1313         for (i = 0; i < NUM_RX_JUMBO_DESCRIPTORS; i++) {
1314                 rxb = &ha->rx_jbuf[i];
1315                 rxb->handle = i;
1316                 if (!(ret = qla_get_mbuf(ha, rxb, NULL, 1))) {
1317                         /*
1318                          * set the physical address in the corresponding
1319                          * descriptor entry in the receive ring/queue for the
1320                          * hba
1321                          */
1322                         qla_set_hw_rcv_desc(ha, RDS_RING_INDEX_JUMBO, i,
1323                                 rxb->handle, rxb->paddr,
1324                                 (rxb->m_head)->m_pkthdr.len);
1325                 } else {
1326                         device_printf(ha->pci_dev,
1327                                 "%s: qla_get_mbuf [jumbo(%d)] failed\n",
1328                                 __func__, i);
1329                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1330                         goto qla_alloc_rcv_bufs_failed;
1331                 }
1332         }
1333
1334         return (0);
1335
1336 qla_alloc_rcv_bufs_failed:
1337         qla_free_rcv_bufs(ha);
1338         return (ret);
1339 }
1340
1341 static void
1342 qla_free_rcv_bufs(qla_host_t *ha)
1343 {
1344         int             i;
1345         qla_rx_buf_t    *rxb;
1346
1347         for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1348                 rxb = &ha->rx_buf[i];
1349                 if (rxb->m_head != NULL) {
1350                         bus_dmamap_unload(ha->rx_tag, rxb->map);
1351                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1352                         m_freem(rxb->m_head);
1353                         rxb->m_head = NULL;
1354                 }
1355         }
1356
1357         for (i = 0; i < NUM_RX_JUMBO_DESCRIPTORS; i++) {
1358                 rxb = &ha->rx_jbuf[i];
1359                 if (rxb->m_head != NULL) {
1360                         bus_dmamap_unload(ha->rx_tag, rxb->map);
1361                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1362                         m_freem(rxb->m_head);
1363                         rxb->m_head = NULL;
1364                 }
1365         }
1366
1367         if (ha->rx_tag != NULL) {
1368                 bus_dma_tag_destroy(ha->rx_tag);
1369                 ha->rx_tag = NULL;
1370         }
1371
1372         bzero((void *)ha->rx_buf, (sizeof(qla_rx_buf_t) * NUM_RX_DESCRIPTORS));
1373         bzero((void *)ha->rx_jbuf,
1374                 (sizeof(qla_rx_buf_t) * NUM_RX_JUMBO_DESCRIPTORS));
1375
1376         for (i = 0; i < MAX_SDS_RINGS; i++) {
1377                 ha->hw.sds[i].sdsr_next = 0;
1378                 ha->hw.sds[i].rxb_free = NULL;
1379                 ha->hw.sds[i].rx_free = 0;
1380                 ha->hw.sds[i].rxjb_free = NULL;
1381                 ha->hw.sds[i].rxj_free = 0;
1382         }
1383
1384         return;
1385 }
1386
1387 int
1388 qla_get_mbuf(qla_host_t *ha, qla_rx_buf_t *rxb, struct mbuf *nmp,
1389         uint32_t jumbo)
1390 {
1391         struct mbuf *mp = nmp;
1392         struct ifnet   *ifp;
1393         int             ret = 0;
1394         uint32_t        offset;
1395
1396         QL_DPRINT2((ha->pci_dev, "%s: jumbo(0x%x) enter\n", __func__, jumbo));
1397
1398         ifp = ha->ifp;
1399
1400         if (mp == NULL) {
1401                 if (!jumbo) {
1402                         mp = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1403
1404                         if (mp == NULL) {
1405                                 ha->err_m_getcl++;
1406                                 ret = ENOBUFS;
1407                                 device_printf(ha->pci_dev,
1408                                         "%s: m_getcl failed\n", __func__);
1409                                 goto exit_qla_get_mbuf;
1410                         }
1411                         mp->m_len = mp->m_pkthdr.len = MCLBYTES;
1412                 } else {
1413                         mp = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR,
1414                                 MJUM9BYTES);
1415                         if (mp == NULL) {
1416                                 ha->err_m_getjcl++;
1417                                 ret = ENOBUFS;
1418                                 device_printf(ha->pci_dev,
1419                                         "%s: m_getjcl failed\n", __func__);
1420                                 goto exit_qla_get_mbuf;
1421                         }
1422                         mp->m_len = mp->m_pkthdr.len = MJUM9BYTES;
1423                 }
1424         } else {
1425                 if (!jumbo)
1426                         mp->m_len = mp->m_pkthdr.len = MCLBYTES;
1427                 else
1428                         mp->m_len = mp->m_pkthdr.len = MJUM9BYTES;
1429
1430                 mp->m_data = mp->m_ext.ext_buf;
1431                 mp->m_next = NULL;
1432         }
1433
1434         offset = (uint32_t)((unsigned long long)mp->m_data & 0x7ULL);
1435         if (offset) {
1436                 offset = 8 - offset;
1437                 m_adj(mp, offset);
1438         }
1439
1440         /*
1441          * Using memory from the mbuf cluster pool, invoke the bus_dma
1442          * machinery to arrange the memory mapping.
1443          */
1444         ret = bus_dmamap_load(ha->rx_tag, rxb->map,
1445                                 mtod(mp, void *), mp->m_len,
1446                                 qla_dmamap_callback, &rxb->paddr,
1447                                 BUS_DMA_NOWAIT);
1448         if (ret || !rxb->paddr) {
1449                 m_free(mp);
1450                 rxb->m_head = NULL;
1451                 device_printf(ha->pci_dev,
1452                         "%s: bus_dmamap_load failed\n", __func__);
1453                 ret = -1;
1454                 goto exit_qla_get_mbuf;
1455         }
1456         rxb->m_head = mp;
1457         bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_PREREAD);
1458
1459 exit_qla_get_mbuf:
1460         QL_DPRINT2((ha->pci_dev, "%s: exit ret = 0x%08x\n", __func__, ret));
1461         return (ret);
1462 }
1463
1464 static void
1465 qla_tx_done(void *context, int pending)
1466 {
1467         qla_host_t *ha = context;
1468
1469         qla_hw_tx_done(ha);
1470         qla_start(ha->ifp);
1471 }