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,
 156                 (void *)ha, 0,
 157                 qla_sysctl_get_stats, "I", "Statistics");
 158
 159         SYSCTL_ADD_STRING(device_get_sysctl_ctx(dev),
 160                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 161                 OID_AUTO, "fw_version", CTLFLAG_RD,
 162                 ha->fw_ver_str, 0, "firmware version");
 163
 164         dbg_level = 0;
 165         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 166                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 167                 OID_AUTO, "debug", CTLFLAG_RW,
 168                 &dbg_level, dbg_level, "Debug Level");
 169
 170         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 171                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 172                 OID_AUTO, "std_replenish", CTLFLAG_RW,
 173                 &std_replenish, std_replenish,
 174                 "Threshold for Replenishing Standard Frames");
 175
 176         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 177                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 178                 OID_AUTO, "jumbo_replenish", CTLFLAG_RW,
 179                 &jumbo_replenish, jumbo_replenish,
 180                 "Threshold for Replenishing Jumbo Frames");
 181
 182         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 183                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 184                 OID_AUTO, "rcv_pkt_thres",  CTLFLAG_RW,
 185                 &rcv_pkt_thres, rcv_pkt_thres,
 186                 "Threshold for # of rcv pkts to trigger indication isr");
 187
 188         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 189                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 190                 OID_AUTO, "rcv_pkt_thres_d",  CTLFLAG_RW,
 191                 &rcv_pkt_thres_d, rcv_pkt_thres_d,
 192                 "Threshold for # of rcv pkts to trigger indication defered");
 193
 194         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 195                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 196                 OID_AUTO, "snd_pkt_thres",  CTLFLAG_RW,
 197                 &snd_pkt_thres, snd_pkt_thres,
 198                 "Threshold for # of snd packets");
 199
 200         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 201                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 202                 OID_AUTO, "free_pkt_thres",  CTLFLAG_RW,
 203                 &free_pkt_thres, free_pkt_thres,
 204                 "Threshold for # of packets to free at a time");
 205
 206         return;
 207 }
 208
 209 static void
 210 qla_watchdog(void *arg)
 211 {
 212         qla_host_t *ha = arg;
 213         qla_hw_t *hw;
 214         struct ifnet *ifp;
 215
 216         hw = &ha->hw;
 217         ifp = ha->ifp;
 218
 219         if (ha->flags.qla_watchdog_exit)
 220                 return;
 221
 222         if (!ha->flags.qla_watchdog_pause) {
 223                 if (qla_le32_to_host(*(hw->tx_cons)) != hw->txr_comp) {
 224                         taskqueue_enqueue(ha->tx_tq, &ha->tx_task);
 225                 } else if ((ifp->if_snd.ifq_head != NULL) && QL_RUNNING(ifp)) {
 226                         taskqueue_enqueue(ha->tx_tq, &ha->tx_task);
 227                 }
 228         }
 229         ha->watchdog_ticks = (ha->watchdog_ticks + 1) % 1000;
 230         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 231                 qla_watchdog, ha);
 232 }
 233
 234 /*
 235  * Name:        qla_pci_attach
 236  * Function:    attaches the device to the operating system
 237  */
 238 static int
 239 qla_pci_attach(device_t dev)
 240 {
 241         qla_host_t *ha = NULL;
 242         uint32_t rsrc_len, i;
 243
 244         QL_DPRINT2((dev, "%s: enter\n", __func__));
 245
 246         if ((ha = device_get_softc(dev)) == NULL) {
 247                 device_printf(dev, "cannot get softc\n");
 248                 return (ENOMEM);
 249         }
 250
 251         memset(ha, 0, sizeof (qla_host_t));
 252
 253         if (pci_get_device(dev) != PCI_PRODUCT_QLOGIC_ISP8020) {
 254                 device_printf(dev, "device is not ISP8020\n");
 255                 return (ENXIO);
 256         }
 257
 258         ha->pci_func = pci_get_function(dev);
 259
 260         ha->pci_dev = dev;
 261
 262         pci_enable_busmaster(dev);
 263
 264         ha->reg_rid = PCIR_BAR(0);
 265         ha->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ha->reg_rid,
 266                                 RF_ACTIVE);
 267
 268         if (ha->pci_reg == NULL) {
 269                 device_printf(dev, "unable to map any ports\n");
 270                 goto qla_pci_attach_err;
 271         }
 272
 273         rsrc_len = (uint32_t) bus_get_resource_count(dev, SYS_RES_MEMORY,
 274                                         ha->reg_rid);
 275
 276         mtx_init(&ha->hw_lock, "qla80xx_hw_lock", MTX_NETWORK_LOCK, MTX_DEF);
 277         mtx_init(&ha->tx_lock, "qla80xx_tx_lock", MTX_NETWORK_LOCK, MTX_DEF);
 278         mtx_init(&ha->rx_lock, "qla80xx_rx_lock", MTX_NETWORK_LOCK, MTX_DEF);
 279         mtx_init(&ha->rxj_lock, "qla80xx_rxj_lock", MTX_NETWORK_LOCK, MTX_DEF);
 280         ha->flags.lock_init = 1;
 281
 282         ha->msix_count = pci_msix_count(dev);
 283
 284         if (ha->msix_count < qla_get_msix_count(ha)) {
 285                 device_printf(dev, "%s: msix_count[%d] not enough\n", __func__,
 286                         ha->msix_count);
 287                 goto qla_pci_attach_err;
 288         }
 289
 290         QL_DPRINT2((dev, "%s: ha %p irq %p pci_func 0x%x rsrc_count 0x%08x"
 291                 " msix_count 0x%x pci_reg %p\n", __func__, ha,
 292                 ha->irq, ha->pci_func, rsrc_len, ha->msix_count, ha->pci_reg));
 293
 294         ha->msix_count = qla_get_msix_count(ha);
 295
 296         if (pci_alloc_msix(dev, &ha->msix_count)) {
 297                 device_printf(dev, "%s: pci_alloc_msi[%d] failed\n", __func__,
 298                         ha->msix_count);
 299                 ha->msix_count = 0;
 300                 goto qla_pci_attach_err;
 301         }
 302
 303         TASK_INIT(&ha->tx_task, 0, qla_tx_done, ha);
 304         ha->tx_tq = taskqueue_create_fast("qla_txq", M_NOWAIT,
 305                         taskqueue_thread_enqueue, &ha->tx_tq);
 306         taskqueue_start_threads(&ha->tx_tq, 1, PI_NET, "%s txq",
 307                 device_get_nameunit(ha->pci_dev));
 308
 309         for (i = 0; i < ha->msix_count; i++) {
 310                 ha->irq_vec[i].irq_rid = i+1;
 311                 ha->irq_vec[i].ha = ha;
 312
 313                 ha->irq_vec[i].irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 314                                         &ha->irq_vec[i].irq_rid,
 315                                         (RF_ACTIVE | RF_SHAREABLE));
 316
 317                 if (ha->irq_vec[i].irq == NULL) {
 318                         device_printf(dev, "could not allocate interrupt\n");
 319                         goto qla_pci_attach_err;
 320                 }
 321
 322                 if (bus_setup_intr(dev, ha->irq_vec[i].irq,
 323                         (INTR_TYPE_NET | INTR_MPSAFE),
 324                         NULL, qla_isr, &ha->irq_vec[i],
 325                         &ha->irq_vec[i].handle)) {
 326                         device_printf(dev, "could not setup interrupt\n");
 327                         goto qla_pci_attach_err;
 328                 }
 329
 330                 TASK_INIT(&ha->irq_vec[i].rcv_task, 0, qla_rcv,\
 331                         &ha->irq_vec[i]);
 332
 333                 ha->irq_vec[i].rcv_tq = taskqueue_create_fast("qla_rcvq",
 334                         M_NOWAIT, taskqueue_thread_enqueue,
 335                         &ha->irq_vec[i].rcv_tq);
 336
 337                 taskqueue_start_threads(&ha->irq_vec[i].rcv_tq, 1, PI_NET,
 338                         "%s rcvq",
 339                         device_get_nameunit(ha->pci_dev));
 340         }
 341
 342         qla_add_sysctls(ha);
 343
 344         /* add hardware specific sysctls */
 345         qla_hw_add_sysctls(ha);
 346
 347         /* initialize hardware */
 348         if (qla_init_hw(ha)) {
 349                 device_printf(dev, "%s: qla_init_hw failed\n", __func__);
 350                 goto qla_pci_attach_err;
 351         }
 352
 353         device_printf(dev, "%s: firmware[%d.%d.%d.%d]\n", __func__,
 354                 ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 355                 ha->fw_ver_build);
 356
 357         snprintf(ha->fw_ver_str, sizeof(ha->fw_ver_str), "%d.%d.%d.%d",
 358                         ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 359                         ha->fw_ver_build);
 360
 361         //qla_get_hw_caps(ha);
 362         qla_read_mac_addr(ha);
 363
 364         /* allocate parent dma tag */
 365         if (qla_alloc_parent_dma_tag(ha)) {
 366                 device_printf(dev, "%s: qla_alloc_parent_dma_tag failed\n",
 367                         __func__);
 368                 goto qla_pci_attach_err;
 369         }
 370
 371         /* alloc all dma buffers */
 372         if (qla_alloc_dma(ha)) {
 373                 device_printf(dev, "%s: qla_alloc_dma failed\n", __func__);
 374                 goto qla_pci_attach_err;
 375         }
 376
 377         /* create the o.s ethernet interface */
 378         qla_init_ifnet(dev, ha);
 379
 380         ha->flags.qla_watchdog_active = 1;
 381         ha->flags.qla_watchdog_pause = 1;
 382
 383         callout_init(&ha->tx_callout, 1);
 384
 385         /* create ioctl device interface */
 386         if (qla_make_cdev(ha)) {
 387                 device_printf(dev, "%s: qla_make_cdev failed\n", __func__);
 388                 goto qla_pci_attach_err;
 389         }
 390
 391         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 392                 qla_watchdog, ha);
 393
 394         QL_DPRINT2((dev, "%s: exit 0\n", __func__));
 395         return (0);
 396
 397 qla_pci_attach_err:
 398
 399         qla_release(ha);
 400
 401         QL_DPRINT2((dev, "%s: exit ENXIO\n", __func__));
 402         return (ENXIO);
 403 }
 404
 405 /*
 406  * Name:        qla_pci_detach
 407  * Function:    Unhooks the device from the operating system
 408  */
 409 static int
 410 qla_pci_detach(device_t dev)
 411 {
 412         qla_host_t *ha = NULL;
 413         struct ifnet *ifp;
 414         int i;
 415
 416         QL_DPRINT2((dev, "%s: enter\n", __func__));
 417
 418         if ((ha = device_get_softc(dev)) == NULL) {
 419                 device_printf(dev, "cannot get softc\n");
 420                 return (ENOMEM);
 421         }
 422
 423         ifp = ha->ifp;
 424
 425         QLA_LOCK(ha, __func__);
 426         qla_stop(ha);
 427         QLA_UNLOCK(ha, __func__);
 428
 429         if (ha->tx_tq) {
 430                 taskqueue_drain(ha->tx_tq, &ha->tx_task);
 431                 taskqueue_free(ha->tx_tq);
 432         }
 433
 434         for (i = 0; i < ha->msix_count; i++) {
 435                 taskqueue_drain(ha->irq_vec[i].rcv_tq,
 436                         &ha->irq_vec[i].rcv_task);
 437                 taskqueue_free(ha->irq_vec[i].rcv_tq);
 438         }
 439
 440         qla_release(ha);
 441
 442         QL_DPRINT2((dev, "%s: exit\n", __func__));
 443
 444         return (0);
 445 }
 446
 447 /*
 448  * SYSCTL Related Callbacks
 449  */
 450 static int
 451 qla_sysctl_get_stats(SYSCTL_HANDLER_ARGS)
 452 {
 453         int err, ret = 0;
 454         qla_host_t *ha;
 455
 456         err = sysctl_handle_int(oidp, &ret, 0, req);
 457
 458         if (err)
 459                 return (err);
 460
 461         ha = (qla_host_t *)arg1;
 462         //qla_get_stats(ha);
 463         QL_DPRINT2((ha->pci_dev, "%s: called ret %d\n", __func__, ret));
 464         return (err);
 465 }
 466
 467
 468 /*
 469  * Name:        qla_release
 470  * Function:    Releases the resources allocated for the device
 471  */
 472 static void
 473 qla_release(qla_host_t *ha)
 474 {
 475         device_t dev;
 476         int i;
 477
 478         dev = ha->pci_dev;
 479
 480         qla_del_cdev(ha);
 481
 482         if (ha->flags.qla_watchdog_active)
 483                 ha->flags.qla_watchdog_exit = 1;
 484
 485         callout_stop(&ha->tx_callout);
 486         qla_mdelay(__func__, 100);
 487
 488         if (ha->ifp != NULL)
 489                 ether_ifdetach(ha->ifp);
 490
 491         qla_free_dma(ha);
 492         qla_free_parent_dma_tag(ha);
 493
 494         for (i = 0; i < ha->msix_count; i++) {
 495                 if (ha->irq_vec[i].handle)
 496                         (void)bus_teardown_intr(dev, ha->irq_vec[i].irq,
 497                                 ha->irq_vec[i].handle);
 498                 if (ha->irq_vec[i].irq)
 499                         (void) bus_release_resource(dev, SYS_RES_IRQ,
 500                                 ha->irq_vec[i].irq_rid,
 501                                 ha->irq_vec[i].irq);
 502         }
 503         if (ha->msix_count)
 504                 pci_release_msi(dev);
 505
 506         if (ha->flags.lock_init) {
 507                 mtx_destroy(&ha->tx_lock);
 508                 mtx_destroy(&ha->rx_lock);
 509                 mtx_destroy(&ha->rxj_lock);
 510                 mtx_destroy(&ha->hw_lock);
 511         }
 512
 513         if (ha->pci_reg)
 514                 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid,
 515                                 ha->pci_reg);
 516 }
 517
 518 /*
 519  * DMA Related Functions
 520  */
 521
 522 static void
 523 qla_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 524 {
 525         *((bus_addr_t *)arg) = 0;
 526
 527         if (error) {
 528                 printf("%s: bus_dmamap_load failed (%d)\n", __func__, error);
 529                 return;
 530         }
 531
 532         QL_ASSERT((nsegs == 1), ("%s: %d segments returned!", __func__, nsegs));
 533
 534         *((bus_addr_t *)arg) = segs[0].ds_addr;
 535
 536         return;
 537 }
 538
 539 int
 540 qla_alloc_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 541 {
 542         int             ret = 0;
 543         device_t        dev;
 544         bus_addr_t      b_addr;
 545
 546         dev = ha->pci_dev;
 547
 548         QL_DPRINT2((dev, "%s: enter\n", __func__));
 549
 550         ret = bus_dma_tag_create(
 551                         ha->parent_tag,/* parent */
 552                         dma_buf->alignment,
 553                         ((bus_size_t)(1ULL << 32)),/* boundary */
 554                         BUS_SPACE_MAXADDR,      /* lowaddr */
 555                         BUS_SPACE_MAXADDR,      /* highaddr */
 556                         NULL, NULL,             /* filter, filterarg */
 557                         dma_buf->size,          /* maxsize */
 558                         1,                      /* nsegments */
 559                         dma_buf->size,          /* maxsegsize */
 560                         0,                      /* flags */
 561                         NULL, NULL,             /* lockfunc, lockarg */
 562                         &dma_buf->dma_tag);
 563
 564         if (ret) {
 565                 device_printf(dev, "%s: could not create dma tag\n", __func__);
 566                 goto qla_alloc_dmabuf_exit;
 567         }
 568         ret = bus_dmamem_alloc(dma_buf->dma_tag,
 569                         (void **)&dma_buf->dma_b,
 570                         (BUS_DMA_ZERO | BUS_DMA_COHERENT | BUS_DMA_NOWAIT),
 571                         &dma_buf->dma_map);
 572         if (ret) {
 573                 bus_dma_tag_destroy(dma_buf->dma_tag);
 574                 device_printf(dev, "%s: bus_dmamem_alloc failed\n", __func__);
 575                 goto qla_alloc_dmabuf_exit;
 576         }
 577
 578         ret = bus_dmamap_load(dma_buf->dma_tag,
 579                         dma_buf->dma_map,
 580                         dma_buf->dma_b,
 581                         dma_buf->size,
 582                         qla_dmamap_callback,
 583                         &b_addr, BUS_DMA_NOWAIT);
 584
 585         if (ret || !b_addr) {
 586                 bus_dma_tag_destroy(dma_buf->dma_tag);
 587                 bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b,
 588                         dma_buf->dma_map);
 589                 ret = -1;
 590                 goto qla_alloc_dmabuf_exit;
 591         }
 592
 593         dma_buf->dma_addr = b_addr;
 594
 595 qla_alloc_dmabuf_exit:
 596         QL_DPRINT2((dev, "%s: exit ret 0x%08x tag %p map %p b %p sz 0x%x\n",
 597                 __func__, ret, (void *)dma_buf->dma_tag,
 598                 (void *)dma_buf->dma_map, (void *)dma_buf->dma_b,
 599                 dma_buf->size));
 600
 601         return ret;
 602 }
 603
 604 void
 605 qla_free_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 606 {
 607         bus_dmamap_unload(dma_buf->dma_tag, dma_buf->dma_map);
 608         bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b, dma_buf->dma_map);
 609         bus_dma_tag_destroy(dma_buf->dma_tag);
 610 }
 611
 612 static int
 613 qla_alloc_parent_dma_tag(qla_host_t *ha)
 614 {
 615         int             ret;
 616         device_t        dev;
 617
 618         dev = ha->pci_dev;
 619
 620         /*
 621          * Allocate parent DMA Tag
 622          */
 623         ret = bus_dma_tag_create(
 624                         bus_get_dma_tag(dev),   /* parent */
 625                         1,((bus_size_t)(1ULL << 32)),/* alignment, boundary */
 626                         BUS_SPACE_MAXADDR,      /* lowaddr */
 627                         BUS_SPACE_MAXADDR,      /* highaddr */
 628                         NULL, NULL,             /* filter, filterarg */
 629                         BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
 630                         0,                      /* nsegments */
 631                         BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
 632                         0,                      /* flags */
 633                         NULL, NULL,             /* lockfunc, lockarg */
 634                         &ha->parent_tag);
 635
 636         if (ret) {
 637                 device_printf(dev, "%s: could not create parent dma tag\n",
 638                         __func__);
 639                 return (-1);
 640         }
 641
 642         ha->flags.parent_tag = 1;
 643
 644         return (0);
 645 }
 646
 647 static void
 648 qla_free_parent_dma_tag(qla_host_t *ha)
 649 {
 650         if (ha->flags.parent_tag) {
 651                 bus_dma_tag_destroy(ha->parent_tag);
 652                 ha->flags.parent_tag = 0;
 653         }
 654 }
 655
 656 /*
 657  * Name: qla_init_ifnet
 658  * Function: Creates the Network Device Interface and Registers it with the O.S
 659  */
 660
 661 static void
 662 qla_init_ifnet(device_t dev, qla_host_t *ha)
 663 {
 664         struct ifnet *ifp;
 665
 666         QL_DPRINT2((dev, "%s: enter\n", __func__));
 667
 668         ifp = ha->ifp = if_alloc(IFT_ETHER);
 669
 670         if (ifp == NULL)
 671                 panic("%s: cannot if_alloc()\n", device_get_nameunit(dev));
 672
 673         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 674
 675         ifp->if_baudrate = IF_Gbps(10);
 676         ifp->if_init = qla_init;
 677         ifp->if_softc = ha;
 678         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 679         ifp->if_ioctl = qla_ioctl;
 680         ifp->if_start = qla_start;
 681
 682         IFQ_SET_MAXLEN(&ifp->if_snd, qla_get_ifq_snd_maxlen(ha));
 683         ifp->if_snd.ifq_drv_maxlen = qla_get_ifq_snd_maxlen(ha);
 684         IFQ_SET_READY(&ifp->if_snd);
 685
 686         ha->max_frame_size = ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 687
 688         ether_ifattach(ifp, qla_get_mac_addr(ha));
 689
 690         ifp->if_capabilities = IFCAP_HWCSUM |
 691                                 IFCAP_TSO4 |
 692                                 IFCAP_JUMBO_MTU;
 693
 694         ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
 695         ifp->if_capabilities |= IFCAP_LINKSTATE;
 696
 697 #if defined(__FreeBSD_version) && (__FreeBSD_version < 900002)
 698         ifp->if_timer = 0;
 699         ifp->if_watchdog = NULL;
 700 #endif /* #if defined(__FreeBSD_version) && (__FreeBSD_version < 900002) */
 701
 702         ifp->if_capenable = ifp->if_capabilities;
 703
 704         ifp->if_hdrlen = sizeof(struct ether_vlan_header);
 705
 706         ifmedia_init(&ha->media, IFM_IMASK, qla_media_change, qla_media_status);
 707
 708         ifmedia_add(&ha->media, (IFM_ETHER | qla_get_optics(ha) | IFM_FDX), 0,
 709                 NULL);
 710         ifmedia_add(&ha->media, (IFM_ETHER | IFM_AUTO), 0, NULL);
 711
 712         ifmedia_set(&ha->media, (IFM_ETHER | IFM_AUTO));
 713
 714         QL_DPRINT2((dev, "%s: exit\n", __func__));
 715
 716         return;
 717 }
 718
 719 static void
 720 qla_init_locked(qla_host_t *ha)
 721 {
 722         struct ifnet *ifp = ha->ifp;
 723
 724         qla_stop(ha);
 725
 726         if (qla_alloc_xmt_bufs(ha) != 0)
 727                 return;
 728
 729         if (qla_alloc_rcv_bufs(ha) != 0)
 730                 return;
 731
 732         if (qla_config_lro(ha))
 733                 return;
 734
 735         bcopy(IF_LLADDR(ha->ifp), ha->hw.mac_addr, ETHER_ADDR_LEN);
 736
 737         ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_TSO;
 738
 739         ha->flags.stop_rcv = 0;
 740         if (qla_init_hw_if(ha) == 0) {
 741                 ifp = ha->ifp;
 742                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
 743                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 744                 ha->flags.qla_watchdog_pause = 0;
 745         }
 746
 747         return;
 748 }
 749
 750 static void
 751 qla_init(void *arg)
 752 {
 753         qla_host_t *ha;
 754
 755         ha = (qla_host_t *)arg;
 756
 757         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
 758
 759         QLA_LOCK(ha, __func__);
 760         qla_init_locked(ha);
 761         QLA_UNLOCK(ha, __func__);
 762
 763         QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__));
 764 }
 765
 766 static u_int
 767 qla_copy_maddr(void *arg, struct sockaddr_dl *sdl, u_int mcnt)
 768 {
 769         uint8_t *mta = arg;
 770
 771         if (mcnt == Q8_MAX_NUM_MULTICAST_ADDRS)
 772                 return (0);
 773         bcopy(LLADDR(sdl), &mta[mcnt * Q8_MAC_ADDR_LEN], Q8_MAC_ADDR_LEN);
 774
 775         return (1);
 776 }
 777
 778 static void
 779 qla_set_multi(qla_host_t *ha, uint32_t add_multi)
 780 {
 781         uint8_t mta[Q8_MAX_NUM_MULTICAST_ADDRS * Q8_MAC_ADDR_LEN];
 782         struct ifnet *ifp = ha->ifp;
 783         int mcnt;
 784
 785         mcnt = if_foreach_llmaddr(ifp, qla_copy_maddr, mta);
 786         qla_hw_set_multi(ha, mta, mcnt, add_multi);
 787
 788         return;
 789 }
 790
 791 static int
 792 qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 793 {
 794         int ret = 0;
 795         struct ifreq *ifr = (struct ifreq *)data;
 796         struct ifaddr *ifa = (struct ifaddr *)data;
 797         qla_host_t *ha;
 798
 799         ha = (qla_host_t *)ifp->if_softc;
 800
 801         switch (cmd) {
 802         case SIOCSIFADDR:
 803                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFADDR (0x%lx)\n",
 804                         __func__, cmd));
 805
 806                 if (ifa->ifa_addr->sa_family == AF_INET) {
 807                         ifp->if_flags |= IFF_UP;
 808                         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 809                                 QLA_LOCK(ha, __func__);
 810                                 qla_init_locked(ha);
 811                                 QLA_UNLOCK(ha, __func__);
 812                         }
 813                 QL_DPRINT4((ha->pci_dev,
 814                         "%s: SIOCSIFADDR (0x%lx) ipv4 [0x%08x]\n",
 815                         __func__, cmd, ntohl(IA_SIN(ifa)->sin_addr.s_addr)));
 816
 817                         arp_ifinit(ifp, ifa);
 818                         if (ntohl(IA_SIN(ifa)->sin_addr.s_addr) != INADDR_ANY) {
 819                                 qla_config_ipv4_addr(ha,
 820                                         (IA_SIN(ifa)->sin_addr.s_addr));
 821                         }
 822                 } else {
 823                         ether_ioctl(ifp, cmd, data);
 824                 }
 825                 break;
 826
 827         case SIOCSIFMTU:
 828                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFMTU (0x%lx)\n",
 829                         __func__, cmd));
 830
 831                 if (ifr->ifr_mtu > QLA_MAX_FRAME_SIZE - ETHER_HDR_LEN) {
 832                         ret = EINVAL;
 833                 } else {
 834                         QLA_LOCK(ha, __func__);
 835                         ifp->if_mtu = ifr->ifr_mtu;
 836                         ha->max_frame_size =
 837                                 ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 838                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 839                                 ret = qla_set_max_mtu(ha, ha->max_frame_size,
 840                                         (ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id);
 841                         }
 842                         QLA_UNLOCK(ha, __func__);
 843
 844                         if (ret)
 845                                 ret = EINVAL;
 846                 }
 847
 848                 break;
 849
 850         case SIOCSIFFLAGS:
 851                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFFLAGS (0x%lx)\n",
 852                         __func__, cmd));
 853
 854                 if (ifp->if_flags & IFF_UP) {
 855                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 856                                 if ((ifp->if_flags ^ ha->if_flags) &
 857                                         IFF_PROMISC) {
 858                                         qla_set_promisc(ha);
 859                                 } else if ((ifp->if_flags ^ ha->if_flags) &
 860                                         IFF_ALLMULTI) {
 861                                         qla_set_allmulti(ha);
 862                                 }
 863                         } else {
 864                                 QLA_LOCK(ha, __func__);
 865                                 qla_init_locked(ha);
 866                                 ha->max_frame_size = ifp->if_mtu +
 867                                         ETHER_HDR_LEN + ETHER_CRC_LEN;
 868                                 ret = qla_set_max_mtu(ha, ha->max_frame_size,
 869                                         (ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id);
 870                                 QLA_UNLOCK(ha, __func__);
 871                         }
 872                 } else {
 873                         QLA_LOCK(ha, __func__);
 874                         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
 875                                 qla_stop(ha);
 876                         ha->if_flags = ifp->if_flags;
 877                         QLA_UNLOCK(ha, __func__);
 878                 }
 879                 break;
 880
 881         case SIOCADDMULTI:
 882                 QL_DPRINT4((ha->pci_dev,
 883                         "%s: %s (0x%lx)\n", __func__, "SIOCADDMULTI", cmd));
 884
 885                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 886                         qla_set_multi(ha, 1);
 887                 }
 888                 break;
 889
 890         case SIOCDELMULTI:
 891                 QL_DPRINT4((ha->pci_dev,
 892                         "%s: %s (0x%lx)\n", __func__, "SIOCDELMULTI", cmd));
 893
 894                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 895                         qla_set_multi(ha, 0);
 896                 }
 897                 break;
 898
 899         case SIOCSIFMEDIA:
 900         case SIOCGIFMEDIA:
 901                 QL_DPRINT4((ha->pci_dev,
 902                         "%s: SIOCSIFMEDIA/SIOCGIFMEDIA (0x%lx)\n",
 903                         __func__, cmd));
 904                 ret = ifmedia_ioctl(ifp, ifr, &ha->media, cmd);
 905                 break;
 906
 907         case SIOCSIFCAP:
 908         {
 909                 int mask = ifr->ifr_reqcap ^ ifp->if_capenable;
 910
 911                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFCAP (0x%lx)\n",
 912                         __func__, cmd));
 913
 914                 if (mask & IFCAP_HWCSUM)
 915                         ifp->if_capenable ^= IFCAP_HWCSUM;
 916                 if (mask & IFCAP_TSO4)
 917                         ifp->if_capenable ^= IFCAP_TSO4;
 918                 if (mask & IFCAP_TSO6)
 919                         ifp->if_capenable ^= IFCAP_TSO6;
 920                 if (mask & IFCAP_VLAN_HWTAGGING)
 921                         ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
 922
 923                 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
 924                         qla_init(ha);
 925
 926                 VLAN_CAPABILITIES(ifp);
 927                 break;
 928         }
 929
 930         default:
 931                 QL_DPRINT4((ha->pci_dev, "%s: default (0x%lx)\n",
 932                         __func__, cmd));
 933                 ret = ether_ioctl(ifp, cmd, data);
 934                 break;
 935         }
 936
 937         return (ret);
 938 }
 939
 940 static int
 941 qla_media_change(struct ifnet *ifp)
 942 {
 943         qla_host_t *ha;
 944         struct ifmedia *ifm;
 945         int ret = 0;
 946
 947         ha = (qla_host_t *)ifp->if_softc;
 948
 949         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
 950
 951         ifm = &ha->media;
 952
 953         if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
 954                 ret = EINVAL;
 955
 956         QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__));
 957
 958         return (ret);
 959 }
 960
 961 static void
 962 qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr)
 963 {
 964         qla_host_t *ha;
 965
 966         ha = (qla_host_t *)ifp->if_softc;
 967
 968         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
 969
 970         ifmr->ifm_status = IFM_AVALID;
 971         ifmr->ifm_active = IFM_ETHER;
 972
 973         qla_update_link_state(ha);
 974         if (ha->hw.flags.link_up) {
 975                 ifmr->ifm_status |= IFM_ACTIVE;
 976                 ifmr->ifm_active |= (IFM_FDX | qla_get_optics(ha));
 977         }
 978
 979         QL_DPRINT2((ha->pci_dev, "%s: exit (%s)\n", __func__,\
 980                 (ha->hw.flags.link_up ? "link_up" : "link_down")));
 981
 982         return;
 983 }
 984
 985 void
 986 qla_start(struct ifnet *ifp)
 987 {
 988         struct mbuf    *m_head;
 989         qla_host_t *ha = (qla_host_t *)ifp->if_softc;
 990
 991         QL_DPRINT8((ha->pci_dev, "%s: enter\n", __func__));
 992
 993         if (!mtx_trylock(&ha->tx_lock)) {
 994                 QL_DPRINT8((ha->pci_dev,
 995                         "%s: mtx_trylock(&ha->tx_lock) failed\n", __func__));
 996                 return;
 997         }
 998
 999         if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
1000                 IFF_DRV_RUNNING) {
1001                 QL_DPRINT8((ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__));
1002                 QLA_TX_UNLOCK(ha);
1003                 return;
1004         }
1005
1006         if (!ha->watchdog_ticks)
1007                 qla_update_link_state(ha);
1008
1009         if (!ha->hw.flags.link_up) {
1010                 QL_DPRINT8((ha->pci_dev, "%s: link down\n", __func__));
1011                 QLA_TX_UNLOCK(ha);
1012                 return;
1013         }
1014
1015         while (ifp->if_snd.ifq_head != NULL) {
1016                 IF_DEQUEUE(&ifp->if_snd, m_head);
1017
1018                 if (m_head == NULL) {
1019                         QL_DPRINT8((ha->pci_dev, "%s: m_head == NULL\n",
1020                                 __func__));
1021                         break;
1022                 }
1023
1024                 if (qla_send(ha, &m_head)) {
1025                         if (m_head == NULL)
1026                                 break;
1027                         QL_DPRINT8((ha->pci_dev, "%s: PREPEND\n", __func__));
1028                         ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1029                         IF_PREPEND(&ifp->if_snd, m_head);
1030                         break;
1031                 }
1032                 /* Send a copy of the frame to the BPF listener */
1033                 ETHER_BPF_MTAP(ifp, m_head);
1034         }
1035         QLA_TX_UNLOCK(ha);
1036         QL_DPRINT8((ha->pci_dev, "%s: exit\n", __func__));
1037         return;
1038 }
1039
1040 static int
1041 qla_send(qla_host_t *ha, struct mbuf **m_headp)
1042 {
1043         bus_dma_segment_t       segs[QLA_MAX_SEGMENTS];
1044         bus_dmamap_t            map;
1045         int                     nsegs;
1046         int                     ret = -1;
1047         uint32_t                tx_idx;
1048         struct mbuf *m_head = *m_headp;
1049
1050         QL_DPRINT8((ha->pci_dev, "%s: enter\n", __func__));
1051
1052         if ((ret = bus_dmamap_create(ha->tx_tag, BUS_DMA_NOWAIT, &map))) {
1053                 ha->err_tx_dmamap_create++;
1054                 device_printf(ha->pci_dev,
1055                         "%s: bus_dmamap_create failed[%d, %d]\n",
1056                         __func__, ret, m_head->m_pkthdr.len);
1057                 return (ret);
1058         }
1059
1060         ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head, segs, &nsegs,
1061                         BUS_DMA_NOWAIT);
1062
1063         if (ret == EFBIG) {
1064
1065                 struct mbuf *m;
1066
1067                 QL_DPRINT8((ha->pci_dev, "%s: EFBIG [%d]\n", __func__,
1068                         m_head->m_pkthdr.len));
1069
1070                 m = m_defrag(m_head, M_NOWAIT);
1071                 if (m == NULL) {
1072                         ha->err_tx_defrag++;
1073                         m_freem(m_head);
1074                         *m_headp = NULL;
1075                         device_printf(ha->pci_dev,
1076                                 "%s: m_defrag() = NULL [%d]\n",
1077                                 __func__, ret);
1078                         return (ENOBUFS);
1079                 }
1080                 m_head = m;
1081
1082                 if ((ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head,
1083                                         segs, &nsegs, BUS_DMA_NOWAIT))) {
1084
1085                         ha->err_tx_dmamap_load++;
1086
1087                         device_printf(ha->pci_dev,
1088                                 "%s: bus_dmamap_load_mbuf_sg failed0[%d, %d]\n",
1089                                 __func__, ret, m_head->m_pkthdr.len);
1090
1091                         bus_dmamap_destroy(ha->tx_tag, map);
1092                         if (ret != ENOMEM) {
1093                                 m_freem(m_head);
1094                                 *m_headp = NULL;
1095                         }
1096                         return (ret);
1097                 }
1098         } else if (ret) {
1099                 ha->err_tx_dmamap_load++;
1100
1101                 device_printf(ha->pci_dev,
1102                         "%s: bus_dmamap_load_mbuf_sg failed1[%d, %d]\n",
1103                         __func__, ret, m_head->m_pkthdr.len);
1104
1105                 bus_dmamap_destroy(ha->tx_tag, map);
1106
1107                 if (ret != ENOMEM) {
1108                         m_freem(m_head);
1109                         *m_headp = NULL;
1110                 }
1111                 return (ret);
1112         }
1113
1114         QL_ASSERT((nsegs != 0), ("qla_send: empty packet"));
1115
1116         bus_dmamap_sync(ha->tx_tag, map, BUS_DMASYNC_PREWRITE);
1117
1118         if (!(ret = qla_hw_send(ha, segs, nsegs, &tx_idx, m_head))) {
1119                 ha->tx_buf[tx_idx].m_head = m_head;
1120                 ha->tx_buf[tx_idx].map = map;
1121         } else {
1122                 if (ret == EINVAL) {
1123                         m_freem(m_head);
1124                         *m_headp = NULL;
1125                 }
1126         }
1127
1128         QL_DPRINT8((ha->pci_dev, "%s: exit\n", __func__));
1129         return (ret);
1130 }
1131
1132 static void
1133 qla_stop(qla_host_t *ha)
1134 {
1135         struct ifnet *ifp = ha->ifp;
1136         device_t        dev;
1137
1138         dev = ha->pci_dev;
1139
1140         ha->flags.qla_watchdog_pause = 1;
1141         qla_mdelay(__func__, 100);
1142
1143         ha->flags.stop_rcv = 1;
1144         qla_hw_stop_rcv(ha);
1145
1146         qla_del_hw_if(ha);
1147
1148         qla_free_lro(ha);
1149
1150         qla_free_xmt_bufs(ha);
1151         qla_free_rcv_bufs(ha);
1152
1153         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
1154
1155         return;
1156 }
1157
1158 /*
1159  * Buffer Management Functions for Transmit and Receive Rings
1160  */
1161 static int
1162 qla_alloc_xmt_bufs(qla_host_t *ha)
1163 {
1164         if (bus_dma_tag_create(NULL,    /* parent */
1165                 1, 0,    /* alignment, bounds */
1166                 BUS_SPACE_MAXADDR,       /* lowaddr */
1167                 BUS_SPACE_MAXADDR,       /* highaddr */
1168                 NULL, NULL,      /* filter, filterarg */
1169                 QLA_MAX_TSO_FRAME_SIZE,     /* maxsize */
1170                 QLA_MAX_SEGMENTS,        /* nsegments */
1171                 PAGE_SIZE,        /* maxsegsize */
1172                 BUS_DMA_ALLOCNOW,        /* flags */
1173                 NULL,    /* lockfunc */
1174                 NULL,    /* lockfuncarg */
1175                 &ha->tx_tag)) {
1176                 device_printf(ha->pci_dev, "%s: tx_tag alloc failed\n",
1177                         __func__);
1178                 return (ENOMEM);
1179         }
1180         bzero((void *)ha->tx_buf, (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1181
1182         return 0;
1183 }
1184
1185 /*
1186  * Release mbuf after it sent on the wire
1187  */
1188 static void
1189 qla_clear_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb)
1190 {
1191         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
1192
1193         if (txb->m_head) {
1194
1195                 bus_dmamap_unload(ha->tx_tag, txb->map);
1196                 bus_dmamap_destroy(ha->tx_tag, txb->map);
1197
1198                 m_freem(txb->m_head);
1199                 txb->m_head = NULL;
1200         }
1201
1202         QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__));
1203 }
1204
1205 static void
1206 qla_free_xmt_bufs(qla_host_t *ha)
1207 {
1208         int             i;
1209
1210         for (i = 0; i < NUM_TX_DESCRIPTORS; i++)
1211                 qla_clear_tx_buf(ha, &ha->tx_buf[i]);
1212
1213         if (ha->tx_tag != NULL) {
1214                 bus_dma_tag_destroy(ha->tx_tag);
1215                 ha->tx_tag = NULL;
1216         }
1217         bzero((void *)ha->tx_buf, (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1218
1219         return;
1220 }
1221
1222
1223 static int
1224 qla_alloc_rcv_bufs(qla_host_t *ha)
1225 {
1226         int             i, j, ret = 0;
1227         qla_rx_buf_t    *rxb;
1228
1229         if (bus_dma_tag_create(NULL,    /* parent */
1230                         1, 0,    /* alignment, bounds */
1231                         BUS_SPACE_MAXADDR,       /* lowaddr */
1232                         BUS_SPACE_MAXADDR,       /* highaddr */
1233                         NULL, NULL,      /* filter, filterarg */
1234                         MJUM9BYTES,     /* maxsize */
1235                         1,        /* nsegments */
1236                         MJUM9BYTES,        /* maxsegsize */
1237                         BUS_DMA_ALLOCNOW,        /* flags */
1238                         NULL,    /* lockfunc */
1239                         NULL,    /* lockfuncarg */
1240                         &ha->rx_tag)) {
1241
1242                 device_printf(ha->pci_dev, "%s: rx_tag alloc failed\n",
1243                         __func__);
1244
1245                 return (ENOMEM);
1246         }
1247
1248         bzero((void *)ha->rx_buf, (sizeof(qla_rx_buf_t) * NUM_RX_DESCRIPTORS));
1249         bzero((void *)ha->rx_jbuf,
1250                 (sizeof(qla_rx_buf_t) * NUM_RX_JUMBO_DESCRIPTORS));
1251
1252         for (i = 0; i < MAX_SDS_RINGS; i++) {
1253                 ha->hw.sds[i].sdsr_next = 0;
1254                 ha->hw.sds[i].rxb_free = NULL;
1255                 ha->hw.sds[i].rx_free = 0;
1256                 ha->hw.sds[i].rxjb_free = NULL;
1257                 ha->hw.sds[i].rxj_free = 0;
1258         }
1259
1260         for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1261
1262                 rxb = &ha->rx_buf[i];
1263
1264                 ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT, &rxb->map);
1265
1266                 if (ret) {
1267                         device_printf(ha->pci_dev,
1268                                 "%s: dmamap[%d] failed\n", __func__, i);
1269
1270                         for (j = 0; j < i; j++) {
1271                                 bus_dmamap_destroy(ha->rx_tag,
1272                                         ha->rx_buf[j].map);
1273                         }
1274                         goto qla_alloc_rcv_bufs_failed;
1275                 }
1276         }
1277
1278         qla_init_hw_rcv_descriptors(ha, RDS_RING_INDEX_NORMAL);
1279
1280         for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1281                 rxb = &ha->rx_buf[i];
1282                 rxb->handle = i;
1283                 if (!(ret = qla_get_mbuf(ha, rxb, NULL, 0))) {
1284                         /*
1285                          * set the physical address in the corresponding
1286                          * descriptor entry in the receive ring/queue for the
1287                          * hba
1288                          */
1289                         qla_set_hw_rcv_desc(ha, RDS_RING_INDEX_NORMAL, i,
1290                                 rxb->handle, rxb->paddr,
1291                                 (rxb->m_head)->m_pkthdr.len);
1292                 } else {
1293                         device_printf(ha->pci_dev,
1294                                 "%s: qla_get_mbuf [standard(%d)] failed\n",
1295                                 __func__, i);
1296                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1297                         goto qla_alloc_rcv_bufs_failed;
1298                 }
1299         }
1300
1301
1302         for (i = 0; i < NUM_RX_JUMBO_DESCRIPTORS; i++) {
1303
1304                 rxb = &ha->rx_jbuf[i];
1305
1306                 ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT, &rxb->map);
1307
1308                 if (ret) {
1309                         device_printf(ha->pci_dev,
1310                                 "%s: dmamap[%d] failed\n", __func__, i);
1311
1312                         for (j = 0; j < i; j++) {
1313                                 bus_dmamap_destroy(ha->rx_tag,
1314                                         ha->rx_jbuf[j].map);
1315                         }
1316                         goto qla_alloc_rcv_bufs_failed;
1317                 }
1318         }
1319
1320         qla_init_hw_rcv_descriptors(ha, RDS_RING_INDEX_JUMBO);
1321
1322         for (i = 0; i < NUM_RX_JUMBO_DESCRIPTORS; i++) {
1323                 rxb = &ha->rx_jbuf[i];
1324                 rxb->handle = i;
1325                 if (!(ret = qla_get_mbuf(ha, rxb, NULL, 1))) {
1326                         /*
1327                          * set the physical address in the corresponding
1328                          * descriptor entry in the receive ring/queue for the
1329                          * hba
1330                          */
1331                         qla_set_hw_rcv_desc(ha, RDS_RING_INDEX_JUMBO, i,
1332                                 rxb->handle, rxb->paddr,
1333                                 (rxb->m_head)->m_pkthdr.len);
1334                 } else {
1335                         device_printf(ha->pci_dev,
1336                                 "%s: qla_get_mbuf [jumbo(%d)] failed\n",
1337                                 __func__, i);
1338                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1339                         goto qla_alloc_rcv_bufs_failed;
1340                 }
1341         }
1342
1343         return (0);
1344
1345 qla_alloc_rcv_bufs_failed:
1346         qla_free_rcv_bufs(ha);
1347         return (ret);
1348 }
1349
1350 static void
1351 qla_free_rcv_bufs(qla_host_t *ha)
1352 {
1353         int             i;
1354         qla_rx_buf_t    *rxb;
1355
1356         for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1357                 rxb = &ha->rx_buf[i];
1358                 if (rxb->m_head != NULL) {
1359                         bus_dmamap_unload(ha->rx_tag, rxb->map);
1360                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1361                         m_freem(rxb->m_head);
1362                         rxb->m_head = NULL;
1363                 }
1364         }
1365
1366         for (i = 0; i < NUM_RX_JUMBO_DESCRIPTORS; i++) {
1367                 rxb = &ha->rx_jbuf[i];
1368                 if (rxb->m_head != NULL) {
1369                         bus_dmamap_unload(ha->rx_tag, rxb->map);
1370                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1371                         m_freem(rxb->m_head);
1372                         rxb->m_head = NULL;
1373                 }
1374         }
1375
1376         if (ha->rx_tag != NULL) {
1377                 bus_dma_tag_destroy(ha->rx_tag);
1378                 ha->rx_tag = NULL;
1379         }
1380
1381         bzero((void *)ha->rx_buf, (sizeof(qla_rx_buf_t) * NUM_RX_DESCRIPTORS));
1382         bzero((void *)ha->rx_jbuf,
1383                 (sizeof(qla_rx_buf_t) * NUM_RX_JUMBO_DESCRIPTORS));
1384
1385         for (i = 0; i < MAX_SDS_RINGS; i++) {
1386                 ha->hw.sds[i].sdsr_next = 0;
1387                 ha->hw.sds[i].rxb_free = NULL;
1388                 ha->hw.sds[i].rx_free = 0;
1389                 ha->hw.sds[i].rxjb_free = NULL;
1390                 ha->hw.sds[i].rxj_free = 0;
1391         }
1392
1393         return;
1394 }
1395
1396 int
1397 qla_get_mbuf(qla_host_t *ha, qla_rx_buf_t *rxb, struct mbuf *nmp,
1398         uint32_t jumbo)
1399 {
1400         struct mbuf *mp = nmp;
1401         struct ifnet   *ifp;
1402         int             ret = 0;
1403         uint32_t        offset;
1404
1405         QL_DPRINT2((ha->pci_dev, "%s: jumbo(0x%x) enter\n", __func__, jumbo));
1406
1407         ifp = ha->ifp;
1408
1409         if (mp == NULL) {
1410
1411                 if (!jumbo) {
1412                         mp = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1413
1414                         if (mp == NULL) {
1415                                 ha->err_m_getcl++;
1416                                 ret = ENOBUFS;
1417                                 device_printf(ha->pci_dev,
1418                                         "%s: m_getcl failed\n", __func__);
1419                                 goto exit_qla_get_mbuf;
1420                         }
1421                         mp->m_len = mp->m_pkthdr.len = MCLBYTES;
1422                 } else {
1423                         mp = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR,
1424                                 MJUM9BYTES);
1425                         if (mp == NULL) {
1426                                 ha->err_m_getjcl++;
1427                                 ret = ENOBUFS;
1428                                 device_printf(ha->pci_dev,
1429                                         "%s: m_getjcl failed\n", __func__);
1430                                 goto exit_qla_get_mbuf;
1431                         }
1432                         mp->m_len = mp->m_pkthdr.len = MJUM9BYTES;
1433                 }
1434         } else {
1435                 if (!jumbo)
1436                         mp->m_len = mp->m_pkthdr.len = MCLBYTES;
1437                 else
1438                         mp->m_len = mp->m_pkthdr.len = MJUM9BYTES;
1439
1440                 mp->m_data = mp->m_ext.ext_buf;
1441                 mp->m_next = NULL;
1442         }
1443
1444
1445         offset = (uint32_t)((unsigned long long)mp->m_data & 0x7ULL);
1446         if (offset) {
1447                 offset = 8 - offset;
1448                 m_adj(mp, offset);
1449         }
1450
1451         /*
1452          * Using memory from the mbuf cluster pool, invoke the bus_dma
1453          * machinery to arrange the memory mapping.
1454          */
1455         ret = bus_dmamap_load(ha->rx_tag, rxb->map,
1456                                 mtod(mp, void *), mp->m_len,
1457                                 qla_dmamap_callback, &rxb->paddr,
1458                                 BUS_DMA_NOWAIT);
1459         if (ret || !rxb->paddr) {
1460                 m_free(mp);
1461                 rxb->m_head = NULL;
1462                 device_printf(ha->pci_dev,
1463                         "%s: bus_dmamap_load failed\n", __func__);
1464                 ret = -1;
1465                 goto exit_qla_get_mbuf;
1466         }
1467         rxb->m_head = mp;
1468         bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_PREREAD);
1469
1470 exit_qla_get_mbuf:
1471         QL_DPRINT2((ha->pci_dev, "%s: exit ret = 0x%08x\n", __func__, ret));
1472         return (ret);
1473 }
1474
1475 static void
1476 qla_tx_done(void *context, int pending)
1477 {
1478         qla_host_t *ha = context;
1479
1480         qla_hw_tx_done(ha);
1481         qla_start(ha->ifp);
1482 }
1483