sys/dev/qlxgb/qla_os.c

   1 /*
   2  * Copyright (c) 2011-2013 Qlogic Corporation
   3  * All rights reserved.
   4  *
   5  *  Redistribution and use in source and binary forms, with or without
   6  *  modification, are permitted provided that the following conditions
   7  *  are met:
   8  *
   9  *  1. Redistributions of source code must retain the above copyright
  10  *     notice, this list of conditions and the following disclaimer.
  11  *  2. Redistributions in binary form must reproduce the above copyright
  12  *     notice, this list of conditions and the following disclaimer in the
  13  *     documentation and/or other materials provided with the distribution.
  14  *
  15  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  16  *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  19  *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  20  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  21  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  22  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  23  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  24  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  25  *  POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 /*
  29  * File: qla_os.c
  30  * Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __FBSDID("$FreeBSD$");
  35
  36 #include "qla_os.h"
  37 #include "qla_reg.h"
  38 #include "qla_hw.h"
  39 #include "qla_def.h"
  40 #include "qla_inline.h"
  41 #include "qla_ver.h"
  42 #include "qla_glbl.h"
  43 #include "qla_dbg.h"
  44
  45 /*
  46  * Some PCI Configuration Space Related Defines
  47  */
  48
  49 #ifndef PCI_VENDOR_QLOGIC
  50 #define PCI_VENDOR_QLOGIC       0x1077
  51 #endif
  52
  53 #ifndef PCI_PRODUCT_QLOGIC_ISP8020
  54 #define PCI_PRODUCT_QLOGIC_ISP8020      0x8020
  55 #endif
  56
  57 #define PCI_QLOGIC_ISP8020 \
  58         ((PCI_PRODUCT_QLOGIC_ISP8020 << 16) | PCI_VENDOR_QLOGIC)
  59
  60 /*
  61  * static functions
  62  */
  63 static int qla_alloc_parent_dma_tag(qla_host_t *ha);
  64 static void qla_free_parent_dma_tag(qla_host_t *ha);
  65 static int qla_alloc_xmt_bufs(qla_host_t *ha);
  66 static void qla_free_xmt_bufs(qla_host_t *ha);
  67 static int qla_alloc_rcv_bufs(qla_host_t *ha);
  68 static void qla_free_rcv_bufs(qla_host_t *ha);
  69
  70 static void qla_init_ifnet(device_t dev, qla_host_t *ha);
  71 static int qla_sysctl_get_stats(SYSCTL_HANDLER_ARGS);
  72 static void qla_release(qla_host_t *ha);
  73 static void qla_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs,
  74                 int error);
  75 static void qla_stop(qla_host_t *ha);
  76 static int qla_send(qla_host_t *ha, struct mbuf **m_headp);
  77 static void qla_tx_done(void *context, int pending);
  78
  79 /*
  80  * Hooks to the Operating Systems
  81  */
  82 static int qla_pci_probe (device_t);
  83 static int qla_pci_attach (device_t);
  84 static int qla_pci_detach (device_t);
  85
  86 static void qla_init(void *arg);
  87 static int qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data);
  88 static int qla_media_change(struct ifnet *ifp);
  89 static void qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr);
  90
  91 static device_method_t qla_pci_methods[] = {
  92         /* Device interface */
  93         DEVMETHOD(device_probe, qla_pci_probe),
  94         DEVMETHOD(device_attach, qla_pci_attach),
  95         DEVMETHOD(device_detach, qla_pci_detach),
  96         { 0, 0 }
  97 };
  98
  99 static driver_t qla_pci_driver = {
 100         "ql", qla_pci_methods, sizeof (qla_host_t),
 101 };
 102
 103 static devclass_t qla80xx_devclass;
 104
 105 DRIVER_MODULE(qla80xx, pci, qla_pci_driver, qla80xx_devclass, 0, 0);
 106
 107 MODULE_DEPEND(qla80xx, pci, 1, 1, 1);
 108 MODULE_DEPEND(qla80xx, ether, 1, 1, 1);
 109
 110 MALLOC_DEFINE(M_QLA8XXXBUF, "qla80xxbuf", "Buffers for qla80xx driver");
 111
 112 uint32_t std_replenish = 8;
 113 uint32_t jumbo_replenish = 2;
 114 uint32_t rcv_pkt_thres = 128;
 115 uint32_t rcv_pkt_thres_d = 32;
 116 uint32_t snd_pkt_thres = 16;
 117 uint32_t free_pkt_thres = (NUM_TX_DESCRIPTORS / 2);
 118
 119 static char dev_str[64];
 120
 121 /*
 122  * Name:        qla_pci_probe
 123  * Function:    Validate the PCI device to be a QLA80XX device
 124  */
 125 static int
 126 qla_pci_probe(device_t dev)
 127 {
 128         switch ((pci_get_device(dev) << 16) | (pci_get_vendor(dev))) {
 129         case PCI_QLOGIC_ISP8020:
 130                 snprintf(dev_str, sizeof(dev_str), "%s v%d.%d.%d",
 131                         "Qlogic ISP 80xx PCI CNA Adapter-Ethernet Function",
 132                         QLA_VERSION_MAJOR, QLA_VERSION_MINOR,
 133                         QLA_VERSION_BUILD);
 134                 device_set_desc(dev, dev_str);
 135                 break;
 136         default:
 137                 return (ENXIO);
 138         }
 139
 140         if (bootverbose)
 141                 printf("%s: %s\n ", __func__, dev_str);
 142
 143         return (BUS_PROBE_DEFAULT);
 144 }
 145
 146 static void
 147 qla_add_sysctls(qla_host_t *ha)
 148 {
 149         device_t dev = ha->pci_dev;
 150
 151         SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
 152                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 153                 OID_AUTO, "stats", CTLTYPE_INT | CTLFLAG_RD,
 154                 (void *)ha, 0,
 155                 qla_sysctl_get_stats, "I", "Statistics");
 156
 157         SYSCTL_ADD_STRING(device_get_sysctl_ctx(dev),
 158                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 159                 OID_AUTO, "fw_version", CTLFLAG_RD,
 160                 &ha->fw_ver_str, 0, "firmware version");
 161
 162         dbg_level = 0;
 163         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 164                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 165                 OID_AUTO, "debug", CTLFLAG_RW,
 166                 &dbg_level, dbg_level, "Debug Level");
 167
 168         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 169                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 170                 OID_AUTO, "std_replenish", CTLFLAG_RW,
 171                 &std_replenish, std_replenish,
 172                 "Threshold for Replenishing Standard Frames");
 173
 174         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 175                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 176                 OID_AUTO, "jumbo_replenish", CTLFLAG_RW,
 177                 &jumbo_replenish, jumbo_replenish,
 178                 "Threshold for Replenishing Jumbo Frames");
 179
 180         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 181                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 182                 OID_AUTO, "rcv_pkt_thres",  CTLFLAG_RW,
 183                 &rcv_pkt_thres, rcv_pkt_thres,
 184                 "Threshold for # of rcv pkts to trigger indication isr");
 185
 186         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 187                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 188                 OID_AUTO, "rcv_pkt_thres_d",  CTLFLAG_RW,
 189                 &rcv_pkt_thres_d, rcv_pkt_thres_d,
 190                 "Threshold for # of rcv pkts to trigger indication defered");
 191
 192         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 193                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 194                 OID_AUTO, "snd_pkt_thres",  CTLFLAG_RW,
 195                 &snd_pkt_thres, snd_pkt_thres,
 196                 "Threshold for # of snd packets");
 197
 198         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 199                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 200                 OID_AUTO, "free_pkt_thres",  CTLFLAG_RW,
 201                 &free_pkt_thres, free_pkt_thres,
 202                 "Threshold for # of packets to free at a time");
 203
 204         return;
 205 }
 206
 207 static void
 208 qla_watchdog(void *arg)
 209 {
 210         qla_host_t *ha = arg;
 211         qla_hw_t *hw;
 212         struct ifnet *ifp;
 213
 214         hw = &ha->hw;
 215         ifp = ha->ifp;
 216
 217         if (ha->flags.qla_watchdog_exit)
 218                 return;
 219
 220         if (!ha->flags.qla_watchdog_pause) {
 221                 if (qla_le32_to_host(*(hw->tx_cons)) != hw->txr_comp) {
 222                         taskqueue_enqueue(ha->tx_tq, &ha->tx_task);
 223                 } else if ((ifp->if_snd.ifq_head != NULL) && QL_RUNNING(ifp)) {
 224                         taskqueue_enqueue(ha->tx_tq, &ha->tx_task);
 225                 }
 226         }
 227         ha->watchdog_ticks = ha->watchdog_ticks++ % 1000;
 228         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 229                 qla_watchdog, ha);
 230 }
 231
 232 /*
 233  * Name:        qla_pci_attach
 234  * Function:    attaches the device to the operating system
 235  */
 236 static int
 237 qla_pci_attach(device_t dev)
 238 {
 239         qla_host_t *ha = NULL;
 240         uint32_t rsrc_len, i;
 241
 242         QL_DPRINT2((dev, "%s: enter\n", __func__));
 243
 244         if ((ha = device_get_softc(dev)) == NULL) {
 245                 device_printf(dev, "cannot get softc\n");
 246                 return (ENOMEM);
 247         }
 248
 249         memset(ha, 0, sizeof (qla_host_t));
 250
 251         if (pci_get_device(dev) != PCI_PRODUCT_QLOGIC_ISP8020) {
 252                 device_printf(dev, "device is not ISP8020\n");
 253                 return (ENXIO);
 254         }
 255
 256         ha->pci_func = pci_get_function(dev);
 257
 258         ha->pci_dev = dev;
 259
 260         pci_enable_busmaster(dev);
 261
 262         ha->reg_rid = PCIR_BAR(0);
 263         ha->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ha->reg_rid,
 264                                 RF_ACTIVE);
 265
 266         if (ha->pci_reg == NULL) {
 267                 device_printf(dev, "unable to map any ports\n");
 268                 goto qla_pci_attach_err;
 269         }
 270
 271         rsrc_len = (uint32_t) bus_get_resource_count(dev, SYS_RES_MEMORY,
 272                                         ha->reg_rid);
 273
 274         mtx_init(&ha->hw_lock, "qla80xx_hw_lock", MTX_NETWORK_LOCK, MTX_DEF);
 275         mtx_init(&ha->tx_lock, "qla80xx_tx_lock", MTX_NETWORK_LOCK, MTX_DEF);
 276         mtx_init(&ha->rx_lock, "qla80xx_rx_lock", MTX_NETWORK_LOCK, MTX_DEF);
 277         mtx_init(&ha->rxj_lock, "qla80xx_rxj_lock", MTX_NETWORK_LOCK, MTX_DEF);
 278         ha->flags.lock_init = 1;
 279
 280         ha->msix_count = pci_msix_count(dev);
 281
 282         if (ha->msix_count < qla_get_msix_count(ha)) {
 283                 device_printf(dev, "%s: msix_count[%d] not enough\n", __func__,
 284                         ha->msix_count);
 285                 goto qla_pci_attach_err;
 286         }
 287
 288         QL_DPRINT2((dev, "%s: ha %p irq %p pci_func 0x%x rsrc_count 0x%08x"
 289                 " msix_count 0x%x pci_reg %p\n", __func__, ha,
 290                 ha->irq, ha->pci_func, rsrc_len, ha->msix_count, ha->pci_reg));
 291
 292         ha->msix_count = qla_get_msix_count(ha);
 293
 294         if (pci_alloc_msix(dev, &ha->msix_count)) {
 295                 device_printf(dev, "%s: pci_alloc_msi[%d] failed\n", __func__,
 296                         ha->msix_count);
 297                 ha->msix_count = 0;
 298                 goto qla_pci_attach_err;
 299         }
 300
 301         TASK_INIT(&ha->tx_task, 0, qla_tx_done, ha);
 302         ha->tx_tq = taskqueue_create_fast("qla_txq", M_NOWAIT,
 303                         taskqueue_thread_enqueue, &ha->tx_tq);
 304         taskqueue_start_threads(&ha->tx_tq, 1, PI_NET, "%s txq",
 305                 device_get_nameunit(ha->pci_dev));
 306
 307         for (i = 0; i < ha->msix_count; i++) {
 308                 ha->irq_vec[i].irq_rid = i+1;
 309                 ha->irq_vec[i].ha = ha;
 310
 311                 ha->irq_vec[i].irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 312                                         &ha->irq_vec[i].irq_rid,
 313                                         (RF_ACTIVE | RF_SHAREABLE));
 314
 315                 if (ha->irq_vec[i].irq == NULL) {
 316                         device_printf(dev, "could not allocate interrupt\n");
 317                         goto qla_pci_attach_err;
 318                 }
 319
 320                 if (bus_setup_intr(dev, ha->irq_vec[i].irq,
 321                         (INTR_TYPE_NET | INTR_MPSAFE),
 322                         NULL, qla_isr, &ha->irq_vec[i],
 323                         &ha->irq_vec[i].handle)) {
 324                         device_printf(dev, "could not setup interrupt\n");
 325                         goto qla_pci_attach_err;
 326                 }
 327
 328                 TASK_INIT(&ha->irq_vec[i].rcv_task, 0, qla_rcv,\
 329                         &ha->irq_vec[i]);
 330
 331                 ha->irq_vec[i].rcv_tq = taskqueue_create_fast("qla_rcvq",
 332                         M_NOWAIT, taskqueue_thread_enqueue,
 333                         &ha->irq_vec[i].rcv_tq);
 334
 335                 taskqueue_start_threads(&ha->irq_vec[i].rcv_tq, 1, PI_NET,
 336                         "%s rcvq",
 337                         device_get_nameunit(ha->pci_dev));
 338         }
 339
 340         qla_add_sysctls(ha);
 341
 342         /* add hardware specific sysctls */
 343         qla_hw_add_sysctls(ha);
 344
 345         /* initialize hardware */
 346         if (qla_init_hw(ha)) {
 347                 device_printf(dev, "%s: qla_init_hw failed\n", __func__);
 348                 goto qla_pci_attach_err;
 349         }
 350
 351         device_printf(dev, "%s: firmware[%d.%d.%d.%d]\n", __func__,
 352                 ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 353                 ha->fw_ver_build);
 354
 355         snprintf(ha->fw_ver_str, sizeof(ha->fw_ver_str), "%d.%d.%d.%d",
 356                         ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 357                         ha->fw_ver_build);
 358
 359         //qla_get_hw_caps(ha);
 360         qla_read_mac_addr(ha);
 361
 362         /* allocate parent dma tag */
 363         if (qla_alloc_parent_dma_tag(ha)) {
 364                 device_printf(dev, "%s: qla_alloc_parent_dma_tag failed\n",
 365                         __func__);
 366                 goto qla_pci_attach_err;
 367         }
 368
 369         /* alloc all dma buffers */
 370         if (qla_alloc_dma(ha)) {
 371                 device_printf(dev, "%s: qla_alloc_dma failed\n", __func__);
 372                 goto qla_pci_attach_err;
 373         }
 374
 375         /* create the o.s ethernet interface */
 376         qla_init_ifnet(dev, ha);
 377
 378         ha->flags.qla_watchdog_active = 1;
 379         ha->flags.qla_watchdog_pause = 1;
 380
 381         callout_init(&ha->tx_callout, TRUE);
 382
 383         /* create ioctl device interface */
 384         if (qla_make_cdev(ha)) {
 385                 device_printf(dev, "%s: qla_make_cdev failed\n", __func__);
 386                 goto qla_pci_attach_err;
 387         }
 388
 389         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 390                 qla_watchdog, ha);
 391
 392         QL_DPRINT2((dev, "%s: exit 0\n", __func__));
 393         return (0);
 394
 395 qla_pci_attach_err:
 396
 397         qla_release(ha);
 398
 399         QL_DPRINT2((dev, "%s: exit ENXIO\n", __func__));
 400         return (ENXIO);
 401 }
 402
 403 /*
 404  * Name:        qla_pci_detach
 405  * Function:    Unhooks the device from the operating system
 406  */
 407 static int
 408 qla_pci_detach(device_t dev)
 409 {
 410         qla_host_t *ha = NULL;
 411         struct ifnet *ifp;
 412         int i;
 413
 414         QL_DPRINT2((dev, "%s: enter\n", __func__));
 415
 416         if ((ha = device_get_softc(dev)) == NULL) {
 417                 device_printf(dev, "cannot get softc\n");
 418                 return (ENOMEM);
 419         }
 420
 421         ifp = ha->ifp;
 422
 423         QLA_LOCK(ha, __func__);
 424         qla_stop(ha);
 425         QLA_UNLOCK(ha, __func__);
 426
 427         if (ha->tx_tq) {
 428                 taskqueue_drain(ha->tx_tq, &ha->tx_task);
 429                 taskqueue_free(ha->tx_tq);
 430         }
 431
 432         for (i = 0; i < ha->msix_count; i++) {
 433                 taskqueue_drain(ha->irq_vec[i].rcv_tq,
 434                         &ha->irq_vec[i].rcv_task);
 435                 taskqueue_free(ha->irq_vec[i].rcv_tq);
 436         }
 437
 438         qla_release(ha);
 439
 440         QL_DPRINT2((dev, "%s: exit\n", __func__));
 441
 442         return (0);
 443 }
 444
 445 /*
 446  * SYSCTL Related Callbacks
 447  */
 448 static int
 449 qla_sysctl_get_stats(SYSCTL_HANDLER_ARGS)
 450 {
 451         int err, ret = 0;
 452         qla_host_t *ha;
 453
 454         err = sysctl_handle_int(oidp, &ret, 0, req);
 455
 456         if (err)
 457                 return (err);
 458
 459         ha = (qla_host_t *)arg1;
 460         //qla_get_stats(ha);
 461         QL_DPRINT2((ha->pci_dev, "%s: called ret %d\n", __func__, ret));
 462         return (err);
 463 }
 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_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b, dma_buf->dma_map);
 606         bus_dma_tag_destroy(dma_buf->dma_tag);
 607 }
 608
 609 static int
 610 qla_alloc_parent_dma_tag(qla_host_t *ha)
 611 {
 612         int             ret;
 613         device_t        dev;
 614
 615         dev = ha->pci_dev;
 616
 617         /*
 618          * Allocate parent DMA Tag
 619          */
 620         ret = bus_dma_tag_create(
 621                         bus_get_dma_tag(dev),   /* parent */
 622                         1,((bus_size_t)(1ULL << 32)),/* alignment, boundary */
 623                         BUS_SPACE_MAXADDR,      /* lowaddr */
 624                         BUS_SPACE_MAXADDR,      /* highaddr */
 625                         NULL, NULL,             /* filter, filterarg */
 626                         BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
 627                         0,                      /* nsegments */
 628                         BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
 629                         0,                      /* flags */
 630                         NULL, NULL,             /* lockfunc, lockarg */
 631                         &ha->parent_tag);
 632
 633         if (ret) {
 634                 device_printf(dev, "%s: could not create parent dma tag\n",
 635                         __func__);
 636                 return (-1);
 637         }
 638
 639         ha->flags.parent_tag = 1;
 640
 641         return (0);
 642 }
 643
 644 static void
 645 qla_free_parent_dma_tag(qla_host_t *ha)
 646 {
 647         if (ha->flags.parent_tag) {
 648                 bus_dma_tag_destroy(ha->parent_tag);
 649                 ha->flags.parent_tag = 0;
 650         }
 651 }
 652
 653 /*
 654  * Name: qla_init_ifnet
 655  * Function: Creates the Network Device Interface and Registers it with the O.S
 656  */
 657
 658 static void
 659 qla_init_ifnet(device_t dev, qla_host_t *ha)
 660 {
 661         struct ifnet *ifp;
 662
 663         QL_DPRINT2((dev, "%s: enter\n", __func__));
 664
 665         ifp = ha->ifp = if_alloc(IFT_ETHER);
 666
 667         if (ifp == NULL)
 668                 panic("%s: cannot if_alloc()\n", device_get_nameunit(dev));
 669
 670         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 671
 672         if_initbaudrate(ifp, IF_Gbps(10));
 673         ifp->if_init = qla_init;
 674         ifp->if_softc = ha;
 675         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 676         ifp->if_ioctl = qla_ioctl;
 677         ifp->if_start = qla_start;
 678
 679         IFQ_SET_MAXLEN(&ifp->if_snd, qla_get_ifq_snd_maxlen(ha));
 680         ifp->if_snd.ifq_drv_maxlen = qla_get_ifq_snd_maxlen(ha);
 681         IFQ_SET_READY(&ifp->if_snd);
 682
 683         ha->max_frame_size = ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 684
 685         ether_ifattach(ifp, qla_get_mac_addr(ha));
 686
 687         ifp->if_capabilities = IFCAP_HWCSUM |
 688                                 IFCAP_TSO4 |
 689                                 IFCAP_JUMBO_MTU;
 690
 691         ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
 692         ifp->if_capabilities |= IFCAP_LINKSTATE;
 693
 694 #if defined(__FreeBSD_version) && (__FreeBSD_version < 900002)
 695         ifp->if_timer = 0;
 696         ifp->if_watchdog = NULL;
 697 #endif /* #if defined(__FreeBSD_version) && (__FreeBSD_version < 900002) */
 698
 699         ifp->if_capenable = ifp->if_capabilities;
 700
 701         ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
 702
 703         ifmedia_init(&ha->media, IFM_IMASK, qla_media_change, qla_media_status);
 704
 705         ifmedia_add(&ha->media, (IFM_ETHER | qla_get_optics(ha) | IFM_FDX), 0,
 706                 NULL);
 707         ifmedia_add(&ha->media, (IFM_ETHER | IFM_AUTO), 0, NULL);
 708
 709         ifmedia_set(&ha->media, (IFM_ETHER | IFM_AUTO));
 710
 711         QL_DPRINT2((dev, "%s: exit\n", __func__));
 712
 713         return;
 714 }
 715
 716 static void
 717 qla_init_locked(qla_host_t *ha)
 718 {
 719         struct ifnet *ifp = ha->ifp;
 720
 721         qla_stop(ha);
 722
 723         if (qla_alloc_xmt_bufs(ha) != 0)
 724                 return;
 725
 726         if (qla_alloc_rcv_bufs(ha) != 0)
 727                 return;
 728
 729         if (qla_config_lro(ha))
 730                 return;
 731
 732         bcopy(IF_LLADDR(ha->ifp), ha->hw.mac_addr, ETHER_ADDR_LEN);
 733
 734         ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_TSO;
 735
 736         ha->flags.stop_rcv = 0;
 737         if (qla_init_hw_if(ha) == 0) {
 738                 ifp = ha->ifp;
 739                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
 740                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 741                 ha->flags.qla_watchdog_pause = 0;
 742         }
 743
 744         return;
 745 }
 746
 747 static void
 748 qla_init(void *arg)
 749 {
 750         qla_host_t *ha;
 751
 752         ha = (qla_host_t *)arg;
 753
 754         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
 755
 756         QLA_LOCK(ha, __func__);
 757         qla_init_locked(ha);
 758         QLA_UNLOCK(ha, __func__);
 759
 760         QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__));
 761 }
 762
 763 static void
 764 qla_set_multi(qla_host_t *ha, uint32_t add_multi)
 765 {
 766         uint8_t mta[Q8_MAX_NUM_MULTICAST_ADDRS * Q8_MAC_ADDR_LEN];
 767         struct ifmultiaddr *ifma;
 768         int mcnt = 0;
 769         struct ifnet *ifp = ha->ifp;
 770
 771         if_maddr_rlock(ifp);
 772
 773         TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 774
 775                 if (ifma->ifma_addr->sa_family != AF_LINK)
 776                         continue;
 777
 778                 if (mcnt == Q8_MAX_NUM_MULTICAST_ADDRS)
 779                         break;
 780
 781                 bcopy(LLADDR((struct sockaddr_dl *) ifma->ifma_addr),
 782                         &mta[mcnt * Q8_MAC_ADDR_LEN], Q8_MAC_ADDR_LEN);
 783
 784                 mcnt++;
 785         }
 786
 787         if_maddr_runlock(ifp);
 788
 789         qla_hw_set_multi(ha, mta, mcnt, add_multi);
 790
 791         return;
 792 }
 793
 794 static int
 795 qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 796 {
 797         int ret = 0;
 798         struct ifreq *ifr = (struct ifreq *)data;
 799         struct ifaddr *ifa = (struct ifaddr *)data;
 800         qla_host_t *ha;
 801
 802         ha = (qla_host_t *)ifp->if_softc;
 803
 804         switch (cmd) {
 805         case SIOCSIFADDR:
 806                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFADDR (0x%lx)\n",
 807                         __func__, cmd));
 808
 809                 if (ifa->ifa_addr->sa_family == AF_INET) {
 810                         ifp->if_flags |= IFF_UP;
 811                         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 812                                 QLA_LOCK(ha, __func__);
 813                                 qla_init_locked(ha);
 814                                 QLA_UNLOCK(ha, __func__);
 815                         }
 816                 QL_DPRINT4((ha->pci_dev,
 817                         "%s: SIOCSIFADDR (0x%lx) ipv4 [0x%08x]\n",
 818                         __func__, cmd, ntohl(IA_SIN(ifa)->sin_addr.s_addr)));
 819
 820                         arp_ifinit(ifp, ifa);
 821                         if (ntohl(IA_SIN(ifa)->sin_addr.s_addr) != INADDR_ANY) {
 822                                 qla_config_ipv4_addr(ha,
 823                                         (IA_SIN(ifa)->sin_addr.s_addr));
 824                         }
 825                 } else {
 826                         ether_ioctl(ifp, cmd, data);
 827                 }
 828                 break;
 829
 830         case SIOCSIFMTU:
 831                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFMTU (0x%lx)\n",
 832                         __func__, cmd));
 833
 834                 if (ifr->ifr_mtu > QLA_MAX_FRAME_SIZE - ETHER_HDR_LEN) {
 835                         ret = EINVAL;
 836                 } else {
 837                         QLA_LOCK(ha, __func__);
 838                         ifp->if_mtu = ifr->ifr_mtu;
 839                         ha->max_frame_size =
 840                                 ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 841                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 842                                 ret = qla_set_max_mtu(ha, ha->max_frame_size,
 843                                         (ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id);
 844                         }
 845                         QLA_UNLOCK(ha, __func__);
 846
 847                         if (ret)
 848                                 ret = EINVAL;
 849                 }
 850
 851                 break;
 852
 853         case SIOCSIFFLAGS:
 854                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFFLAGS (0x%lx)\n",
 855                         __func__, cmd));
 856
 857                 if (ifp->if_flags & IFF_UP) {
 858                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 859                                 if ((ifp->if_flags ^ ha->if_flags) &
 860                                         IFF_PROMISC) {
 861                                         qla_set_promisc(ha);
 862                                 } else if ((ifp->if_flags ^ ha->if_flags) &
 863                                         IFF_ALLMULTI) {
 864                                         qla_set_allmulti(ha);
 865                                 }
 866                         } else {
 867                                 QLA_LOCK(ha, __func__);
 868                                 qla_init_locked(ha);
 869                                 ha->max_frame_size = ifp->if_mtu +
 870                                         ETHER_HDR_LEN + ETHER_CRC_LEN;
 871                                 ret = qla_set_max_mtu(ha, ha->max_frame_size,
 872                                         (ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id);
 873                                 QLA_UNLOCK(ha, __func__);
 874                         }
 875                 } else {
 876                         QLA_LOCK(ha, __func__);
 877                         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
 878                                 qla_stop(ha);
 879                         ha->if_flags = ifp->if_flags;
 880                         QLA_UNLOCK(ha, __func__);
 881                 }
 882                 break;
 883
 884         case SIOCADDMULTI:
 885                 QL_DPRINT4((ha->pci_dev,
 886                         "%s: %s (0x%lx)\n", __func__, "SIOCADDMULTI", cmd));
 887
 888                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 889                         qla_set_multi(ha, 1);
 890                 }
 891                 break;
 892
 893         case SIOCDELMULTI:
 894                 QL_DPRINT4((ha->pci_dev,
 895                         "%s: %s (0x%lx)\n", __func__, "SIOCDELMULTI", cmd));
 896
 897                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 898                         qla_set_multi(ha, 0);
 899                 }
 900                 break;
 901
 902         case SIOCSIFMEDIA:
 903         case SIOCGIFMEDIA:
 904                 QL_DPRINT4((ha->pci_dev,
 905                         "%s: SIOCSIFMEDIA/SIOCGIFMEDIA (0x%lx)\n",
 906                         __func__, cmd));
 907                 ret = ifmedia_ioctl(ifp, ifr, &ha->media, cmd);
 908                 break;
 909
 910         case SIOCSIFCAP:
 911         {
 912                 int mask = ifr->ifr_reqcap ^ ifp->if_capenable;
 913
 914                 QL_DPRINT4((ha->pci_dev, "%s: SIOCSIFCAP (0x%lx)\n",
 915                         __func__, cmd));
 916
 917                 if (mask & IFCAP_HWCSUM)
 918                         ifp->if_capenable ^= IFCAP_HWCSUM;
 919                 if (mask & IFCAP_TSO4)
 920                         ifp->if_capenable ^= IFCAP_TSO4;
 921                 if (mask & IFCAP_TSO6)
 922                         ifp->if_capenable ^= IFCAP_TSO6;
 923                 if (mask & IFCAP_VLAN_HWTAGGING)
 924                         ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
 925
 926                 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
 927                         qla_init(ha);
 928
 929                 VLAN_CAPABILITIES(ifp);
 930                 break;
 931         }
 932
 933         default:
 934                 QL_DPRINT4((ha->pci_dev, "%s: default (0x%lx)\n",
 935                         __func__, cmd));
 936                 ret = ether_ioctl(ifp, cmd, data);
 937                 break;
 938         }
 939
 940         return (ret);
 941 }
 942
 943 static int
 944 qla_media_change(struct ifnet *ifp)
 945 {
 946         qla_host_t *ha;
 947         struct ifmedia *ifm;
 948         int ret = 0;
 949
 950         ha = (qla_host_t *)ifp->if_softc;
 951
 952         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
 953
 954         ifm = &ha->media;
 955
 956         if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
 957                 ret = EINVAL;
 958
 959         QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__));
 960
 961         return (ret);
 962 }
 963
 964 static void
 965 qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr)
 966 {
 967         qla_host_t *ha;
 968
 969         ha = (qla_host_t *)ifp->if_softc;
 970
 971         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
 972
 973         ifmr->ifm_status = IFM_AVALID;
 974         ifmr->ifm_active = IFM_ETHER;
 975
 976         qla_update_link_state(ha);
 977         if (ha->hw.flags.link_up) {
 978                 ifmr->ifm_status |= IFM_ACTIVE;
 979                 ifmr->ifm_active |= (IFM_FDX | qla_get_optics(ha));
 980         }
 981
 982         QL_DPRINT2((ha->pci_dev, "%s: exit (%s)\n", __func__,\
 983                 (ha->hw.flags.link_up ? "link_up" : "link_down")));
 984
 985         return;
 986 }
 987
 988 void
 989 qla_start(struct ifnet *ifp)
 990 {
 991         struct mbuf    *m_head;
 992         qla_host_t *ha = (qla_host_t *)ifp->if_softc;
 993
 994         QL_DPRINT8((ha->pci_dev, "%s: enter\n", __func__));
 995
 996         if (!mtx_trylock(&ha->tx_lock)) {
 997                 QL_DPRINT8((ha->pci_dev,
 998                         "%s: mtx_trylock(&ha->tx_lock) failed\n", __func__));
 999                 return;
1000         }
1001
1002         if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
1003                 IFF_DRV_RUNNING) {
1004                 QL_DPRINT8((ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__));
1005                 QLA_TX_UNLOCK(ha);
1006                 return;
1007         }
1008
1009         if (!ha->watchdog_ticks)
1010                 qla_update_link_state(ha);
1011
1012         if (!ha->hw.flags.link_up) {
1013                 QL_DPRINT8((ha->pci_dev, "%s: link down\n", __func__));
1014                 QLA_TX_UNLOCK(ha);
1015                 return;
1016         }
1017
1018         while (ifp->if_snd.ifq_head != NULL) {
1019                 IF_DEQUEUE(&ifp->if_snd, m_head);
1020
1021                 if (m_head == NULL) {
1022                         QL_DPRINT8((ha->pci_dev, "%s: m_head == NULL\n",
1023                                 __func__));
1024                         break;
1025                 }
1026
1027                 if (qla_send(ha, &m_head)) {
1028                         if (m_head == NULL)
1029                                 break;
1030                         QL_DPRINT8((ha->pci_dev, "%s: PREPEND\n", __func__));
1031                         ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1032                         IF_PREPEND(&ifp->if_snd, m_head);
1033                         break;
1034                 }
1035                 /* Send a copy of the frame to the BPF listener */
1036                 ETHER_BPF_MTAP(ifp, m_head);
1037         }
1038         QLA_TX_UNLOCK(ha);
1039         QL_DPRINT8((ha->pci_dev, "%s: exit\n", __func__));
1040         return;
1041 }
1042
1043 static int
1044 qla_send(qla_host_t *ha, struct mbuf **m_headp)
1045 {
1046         bus_dma_segment_t       segs[QLA_MAX_SEGMENTS];
1047         bus_dmamap_t            map;
1048         int                     nsegs;
1049         int                     ret = -1;
1050         uint32_t                tx_idx;
1051         struct mbuf *m_head = *m_headp;
1052
1053         QL_DPRINT8((ha->pci_dev, "%s: enter\n", __func__));
1054
1055         if ((ret = bus_dmamap_create(ha->tx_tag, BUS_DMA_NOWAIT, &map))) {
1056                 ha->err_tx_dmamap_create++;
1057                 device_printf(ha->pci_dev,
1058                         "%s: bus_dmamap_create failed[%d, %d]\n",
1059                         __func__, ret, m_head->m_pkthdr.len);
1060                 return (ret);
1061         }
1062
1063         ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head, segs, &nsegs,
1064                         BUS_DMA_NOWAIT);
1065
1066         if ((ret == EFBIG) ||
1067                 ((nsegs > Q8_TX_MAX_SEGMENTS) &&
1068                  (((m_head->m_pkthdr.csum_flags & CSUM_TSO) == 0) ||
1069                         (m_head->m_pkthdr.len <= ha->max_frame_size)))) {
1070
1071                 struct mbuf *m;
1072
1073                 QL_DPRINT8((ha->pci_dev, "%s: EFBIG [%d]\n", __func__,
1074                         m_head->m_pkthdr.len));
1075
1076                 m = m_defrag(m_head, M_NOWAIT);
1077                 if (m == NULL) {
1078                         ha->err_tx_defrag++;
1079                         m_freem(m_head);
1080                         *m_headp = NULL;
1081                         device_printf(ha->pci_dev,
1082                                 "%s: m_defrag() = NULL [%d]\n",
1083                                 __func__, ret);
1084                         return (ENOBUFS);
1085                 }
1086                 m_head = m;
1087
1088                 if ((ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head,
1089                                         segs, &nsegs, BUS_DMA_NOWAIT))) {
1090
1091                         ha->err_tx_dmamap_load++;
1092
1093                         device_printf(ha->pci_dev,
1094                                 "%s: bus_dmamap_load_mbuf_sg failed0[%d, %d]\n",
1095                                 __func__, ret, m_head->m_pkthdr.len);
1096
1097                         bus_dmamap_destroy(ha->tx_tag, map);
1098                         if (ret != ENOMEM) {
1099                                 m_freem(m_head);
1100                                 *m_headp = NULL;
1101                         }
1102                         return (ret);
1103                 }
1104         } else if (ret) {
1105                 ha->err_tx_dmamap_load++;
1106
1107                 device_printf(ha->pci_dev,
1108                         "%s: bus_dmamap_load_mbuf_sg failed1[%d, %d]\n",
1109                         __func__, ret, m_head->m_pkthdr.len);
1110
1111                 bus_dmamap_destroy(ha->tx_tag, map);
1112
1113                 if (ret != ENOMEM) {
1114                         m_freem(m_head);
1115                         *m_headp = NULL;
1116                 }
1117                 return (ret);
1118         }
1119
1120         QL_ASSERT((nsegs != 0), ("qla_send: empty packet"));
1121
1122         bus_dmamap_sync(ha->tx_tag, map, BUS_DMASYNC_PREWRITE);
1123
1124         if (!(ret = qla_hw_send(ha, segs, nsegs, &tx_idx, m_head))) {
1125                 ha->tx_buf[tx_idx].m_head = m_head;
1126                 ha->tx_buf[tx_idx].map = map;
1127         } else {
1128                 if (ret == EINVAL) {
1129                         m_freem(m_head);
1130                         *m_headp = NULL;
1131                 }
1132         }
1133
1134         QL_DPRINT8((ha->pci_dev, "%s: exit\n", __func__));
1135         return (ret);
1136 }
1137
1138 static void
1139 qla_stop(qla_host_t *ha)
1140 {
1141         struct ifnet *ifp = ha->ifp;
1142         device_t        dev;
1143
1144         dev = ha->pci_dev;
1145
1146         ha->flags.qla_watchdog_pause = 1;
1147         qla_mdelay(__func__, 100);
1148
1149         ha->flags.stop_rcv = 1;
1150         qla_hw_stop_rcv(ha);
1151
1152         qla_del_hw_if(ha);
1153
1154         qla_free_lro(ha);
1155
1156         qla_free_xmt_bufs(ha);
1157         qla_free_rcv_bufs(ha);
1158
1159         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
1160
1161         return;
1162 }
1163
1164 /*
1165  * Buffer Management Functions for Transmit and Receive Rings
1166  */
1167 static int
1168 qla_alloc_xmt_bufs(qla_host_t *ha)
1169 {
1170         if (bus_dma_tag_create(NULL,    /* parent */
1171                 1, 0,    /* alignment, bounds */
1172                 BUS_SPACE_MAXADDR,       /* lowaddr */
1173                 BUS_SPACE_MAXADDR,       /* highaddr */
1174                 NULL, NULL,      /* filter, filterarg */
1175                 QLA_MAX_TSO_FRAME_SIZE,     /* maxsize */
1176                 QLA_MAX_SEGMENTS,        /* nsegments */
1177                 PAGE_SIZE,        /* maxsegsize */
1178                 BUS_DMA_ALLOCNOW,        /* flags */
1179                 NULL,    /* lockfunc */
1180                 NULL,    /* lockfuncarg */
1181                 &ha->tx_tag)) {
1182                 device_printf(ha->pci_dev, "%s: tx_tag alloc failed\n",
1183                         __func__);
1184                 return (ENOMEM);
1185         }
1186         bzero((void *)ha->tx_buf, (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1187
1188         return 0;
1189 }
1190
1191 /*
1192  * Release mbuf after it sent on the wire
1193  */
1194 static void
1195 qla_clear_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb)
1196 {
1197         QL_DPRINT2((ha->pci_dev, "%s: enter\n", __func__));
1198
1199         if (txb->m_head) {
1200
1201                 bus_dmamap_unload(ha->tx_tag, txb->map);
1202                 bus_dmamap_destroy(ha->tx_tag, txb->map);
1203
1204                 m_freem(txb->m_head);
1205                 txb->m_head = NULL;
1206         }
1207
1208         QL_DPRINT2((ha->pci_dev, "%s: exit\n", __func__));
1209 }
1210
1211 static void
1212 qla_free_xmt_bufs(qla_host_t *ha)
1213 {
1214         int             i;
1215
1216         for (i = 0; i < NUM_TX_DESCRIPTORS; i++)
1217                 qla_clear_tx_buf(ha, &ha->tx_buf[i]);
1218
1219         if (ha->tx_tag != NULL) {
1220                 bus_dma_tag_destroy(ha->tx_tag);
1221                 ha->tx_tag = NULL;
1222         }
1223         bzero((void *)ha->tx_buf, (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1224
1225         return;
1226 }
1227
1228
1229 static int
1230 qla_alloc_rcv_bufs(qla_host_t *ha)
1231 {
1232         int             i, j, ret = 0;
1233         qla_rx_buf_t    *rxb;
1234
1235         if (bus_dma_tag_create(NULL,    /* parent */
1236                         1, 0,    /* alignment, bounds */
1237                         BUS_SPACE_MAXADDR,       /* lowaddr */
1238                         BUS_SPACE_MAXADDR,       /* highaddr */
1239                         NULL, NULL,      /* filter, filterarg */
1240                         MJUM9BYTES,     /* maxsize */
1241                         1,        /* nsegments */
1242                         MJUM9BYTES,        /* maxsegsize */
1243                         BUS_DMA_ALLOCNOW,        /* flags */
1244                         NULL,    /* lockfunc */
1245                         NULL,    /* lockfuncarg */
1246                         &ha->rx_tag)) {
1247
1248                 device_printf(ha->pci_dev, "%s: rx_tag alloc failed\n",
1249                         __func__);
1250
1251                 return (ENOMEM);
1252         }
1253
1254         bzero((void *)ha->rx_buf, (sizeof(qla_rx_buf_t) * NUM_RX_DESCRIPTORS));
1255         bzero((void *)ha->rx_jbuf,
1256                 (sizeof(qla_rx_buf_t) * NUM_RX_JUMBO_DESCRIPTORS));
1257
1258         for (i = 0; i < MAX_SDS_RINGS; i++) {
1259                 ha->hw.sds[i].sdsr_next = 0;
1260                 ha->hw.sds[i].rxb_free = NULL;
1261                 ha->hw.sds[i].rx_free = 0;
1262                 ha->hw.sds[i].rxjb_free = NULL;
1263                 ha->hw.sds[i].rxj_free = 0;
1264         }
1265
1266         for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1267
1268                 rxb = &ha->rx_buf[i];
1269
1270                 ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT, &rxb->map);
1271
1272                 if (ret) {
1273                         device_printf(ha->pci_dev,
1274                                 "%s: dmamap[%d] failed\n", __func__, i);
1275
1276                         for (j = 0; j < i; j++) {
1277                                 bus_dmamap_destroy(ha->rx_tag,
1278                                         ha->rx_buf[j].map);
1279                         }
1280                         goto qla_alloc_rcv_bufs_failed;
1281                 }
1282         }
1283
1284         qla_init_hw_rcv_descriptors(ha, RDS_RING_INDEX_NORMAL);
1285
1286         for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1287                 rxb = &ha->rx_buf[i];
1288                 rxb->handle = i;
1289                 if (!(ret = qla_get_mbuf(ha, rxb, NULL, 0))) {
1290                         /*
1291                          * set the physical address in the corresponding
1292                          * descriptor entry in the receive ring/queue for the
1293                          * hba
1294                          */
1295                         qla_set_hw_rcv_desc(ha, RDS_RING_INDEX_NORMAL, i,
1296                                 rxb->handle, rxb->paddr,
1297                                 (rxb->m_head)->m_pkthdr.len);
1298                 } else {
1299                         device_printf(ha->pci_dev,
1300                                 "%s: qla_get_mbuf [standard(%d)] failed\n",
1301                                 __func__, i);
1302                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1303                         goto qla_alloc_rcv_bufs_failed;
1304                 }
1305         }
1306
1307
1308         for (i = 0; i < NUM_RX_JUMBO_DESCRIPTORS; i++) {
1309
1310                 rxb = &ha->rx_jbuf[i];
1311
1312                 ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT, &rxb->map);
1313
1314                 if (ret) {
1315                         device_printf(ha->pci_dev,
1316                                 "%s: dmamap[%d] failed\n", __func__, i);
1317
1318                         for (j = 0; j < i; j++) {
1319                                 bus_dmamap_destroy(ha->rx_tag,
1320                                         ha->rx_jbuf[j].map);
1321                         }
1322                         goto qla_alloc_rcv_bufs_failed;
1323                 }
1324         }
1325
1326         qla_init_hw_rcv_descriptors(ha, RDS_RING_INDEX_JUMBO);
1327
1328         for (i = 0; i < NUM_RX_JUMBO_DESCRIPTORS; i++) {
1329                 rxb = &ha->rx_jbuf[i];
1330                 rxb->handle = i;
1331                 if (!(ret = qla_get_mbuf(ha, rxb, NULL, 1))) {
1332                         /*
1333                          * set the physical address in the corresponding
1334                          * descriptor entry in the receive ring/queue for the
1335                          * hba
1336                          */
1337                         qla_set_hw_rcv_desc(ha, RDS_RING_INDEX_JUMBO, i,
1338                                 rxb->handle, rxb->paddr,
1339                                 (rxb->m_head)->m_pkthdr.len);
1340                 } else {
1341                         device_printf(ha->pci_dev,
1342                                 "%s: qla_get_mbuf [jumbo(%d)] failed\n",
1343                                 __func__, i);
1344                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1345                         goto qla_alloc_rcv_bufs_failed;
1346                 }
1347         }
1348
1349         return (0);
1350
1351 qla_alloc_rcv_bufs_failed:
1352         qla_free_rcv_bufs(ha);
1353         return (ret);
1354 }
1355
1356 static void
1357 qla_free_rcv_bufs(qla_host_t *ha)
1358 {
1359         int             i;
1360         qla_rx_buf_t    *rxb;
1361
1362         for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1363                 rxb = &ha->rx_buf[i];
1364                 if (rxb->m_head != NULL) {
1365                         bus_dmamap_unload(ha->rx_tag, rxb->map);
1366                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1367                         m_freem(rxb->m_head);
1368                         rxb->m_head = NULL;
1369                 }
1370         }
1371
1372         for (i = 0; i < NUM_RX_JUMBO_DESCRIPTORS; i++) {
1373                 rxb = &ha->rx_jbuf[i];
1374                 if (rxb->m_head != NULL) {
1375                         bus_dmamap_unload(ha->rx_tag, rxb->map);
1376                         bus_dmamap_destroy(ha->rx_tag, rxb->map);
1377                         m_freem(rxb->m_head);
1378                         rxb->m_head = NULL;
1379                 }
1380         }
1381
1382         if (ha->rx_tag != NULL) {
1383                 bus_dma_tag_destroy(ha->rx_tag);
1384                 ha->rx_tag = NULL;
1385         }
1386
1387         bzero((void *)ha->rx_buf, (sizeof(qla_rx_buf_t) * NUM_RX_DESCRIPTORS));
1388         bzero((void *)ha->rx_jbuf,
1389                 (sizeof(qla_rx_buf_t) * NUM_RX_JUMBO_DESCRIPTORS));
1390
1391         for (i = 0; i < MAX_SDS_RINGS; i++) {
1392                 ha->hw.sds[i].sdsr_next = 0;
1393                 ha->hw.sds[i].rxb_free = NULL;
1394                 ha->hw.sds[i].rx_free = 0;
1395                 ha->hw.sds[i].rxjb_free = NULL;
1396                 ha->hw.sds[i].rxj_free = 0;
1397         }
1398
1399         return;
1400 }
1401
1402 int
1403 qla_get_mbuf(qla_host_t *ha, qla_rx_buf_t *rxb, struct mbuf *nmp,
1404         uint32_t jumbo)
1405 {
1406         register struct mbuf *mp = nmp;
1407         struct ifnet   *ifp;
1408         int             ret = 0;
1409         uint32_t        offset;
1410
1411         QL_DPRINT2((ha->pci_dev, "%s: jumbo(0x%x) enter\n", __func__, jumbo));
1412
1413         ifp = ha->ifp;
1414
1415         if (mp == NULL) {
1416
1417                 if (!jumbo) {
1418                         mp = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1419
1420                         if (mp == NULL) {
1421                                 ha->err_m_getcl++;
1422                                 ret = ENOBUFS;
1423                                 device_printf(ha->pci_dev,
1424                                         "%s: m_getcl failed\n", __func__);
1425                                 goto exit_qla_get_mbuf;
1426                         }
1427                         mp->m_len = mp->m_pkthdr.len = MCLBYTES;
1428                 } else {
1429                         mp = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR,
1430                                 MJUM9BYTES);
1431                         if (mp == NULL) {
1432                                 ha->err_m_getjcl++;
1433                                 ret = ENOBUFS;
1434                                 device_printf(ha->pci_dev,
1435                                         "%s: m_getjcl failed\n", __func__);
1436                                 goto exit_qla_get_mbuf;
1437                         }
1438                         mp->m_len = mp->m_pkthdr.len = MJUM9BYTES;
1439                 }
1440         } else {
1441                 if (!jumbo)
1442                         mp->m_len = mp->m_pkthdr.len = MCLBYTES;
1443                 else
1444                         mp->m_len = mp->m_pkthdr.len = MJUM9BYTES;
1445
1446                 mp->m_data = mp->m_ext.ext_buf;
1447                 mp->m_next = NULL;
1448         }
1449
1450
1451         offset = (uint32_t)((unsigned long long)mp->m_data & 0x7ULL);
1452         if (offset) {
1453                 offset = 8 - offset;
1454                 m_adj(mp, offset);
1455         }
1456
1457         /*
1458          * Using memory from the mbuf cluster pool, invoke the bus_dma
1459          * machinery to arrange the memory mapping.
1460          */
1461         ret = bus_dmamap_load(ha->rx_tag, rxb->map,
1462                                 mtod(mp, void *), mp->m_len,
1463                                 qla_dmamap_callback, &rxb->paddr,
1464                                 BUS_DMA_NOWAIT);
1465         if (ret || !rxb->paddr) {
1466                 m_free(mp);
1467                 rxb->m_head = NULL;
1468                 device_printf(ha->pci_dev,
1469                         "%s: bus_dmamap_load failed\n", __func__);
1470                 ret = -1;
1471                 goto exit_qla_get_mbuf;
1472         }
1473         rxb->m_head = mp;
1474         bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_PREREAD);
1475
1476 exit_qla_get_mbuf:
1477         QL_DPRINT2((ha->pci_dev, "%s: exit ret = 0x%08x\n", __func__, ret));
1478         return (ret);
1479 }
1480
1481 static void
1482 qla_tx_done(void *context, int pending)
1483 {
1484         qla_host_t *ha = context;
1485
1486         qla_hw_tx_done(ha);
1487         qla_start(ha->ifp);
1488 }
1489