sys/dev/qlxgbe/ql_os.c

   1 /*
   2  * Copyright (c) 2013-2016 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: ql_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
  37 #include "ql_os.h"
  38 #include "ql_hw.h"
  39 #include "ql_def.h"
  40 #include "ql_inline.h"
  41 #include "ql_ver.h"
  42 #include "ql_glbl.h"
  43 #include "ql_dbg.h"
  44 #include <sys/smp.h>
  45
  46 /*
  47  * Some PCI Configuration Space Related Defines
  48  */
  49
  50 #ifndef PCI_VENDOR_QLOGIC
  51 #define PCI_VENDOR_QLOGIC       0x1077
  52 #endif
  53
  54 #ifndef PCI_PRODUCT_QLOGIC_ISP8030
  55 #define PCI_PRODUCT_QLOGIC_ISP8030      0x8030
  56 #endif
  57
  58 #define PCI_QLOGIC_ISP8030 \
  59         ((PCI_PRODUCT_QLOGIC_ISP8030 << 16) | PCI_VENDOR_QLOGIC)
  60
  61 /*
  62  * static functions
  63  */
  64 static int qla_alloc_parent_dma_tag(qla_host_t *ha);
  65 static void qla_free_parent_dma_tag(qla_host_t *ha);
  66 static int qla_alloc_xmt_bufs(qla_host_t *ha);
  67 static void qla_free_xmt_bufs(qla_host_t *ha);
  68 static int qla_alloc_rcv_bufs(qla_host_t *ha);
  69 static void qla_free_rcv_bufs(qla_host_t *ha);
  70 static void qla_clear_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb);
  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 int qla_sysctl_get_link_status(SYSCTL_HANDLER_ARGS);
  75 static void qla_release(qla_host_t *ha);
  76 static void qla_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs,
  77                 int error);
  78 static void qla_stop(qla_host_t *ha);
  79 static int qla_send(qla_host_t *ha, struct mbuf **m_headp);
  80 static void qla_tx_done(void *context, int pending);
  81 static void qla_get_peer(qla_host_t *ha);
  82 static void qla_error_recovery(void *context, int pending);
  83 static void qla_async_event(void *context, int pending);
  84
  85 /*
  86  * Hooks to the Operating Systems
  87  */
  88 static int qla_pci_probe (device_t);
  89 static int qla_pci_attach (device_t);
  90 static int qla_pci_detach (device_t);
  91
  92 static void qla_init(void *arg);
  93 static int qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data);
  94 static int qla_media_change(struct ifnet *ifp);
  95 static void qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr);
  96 static void qla_start(struct ifnet *ifp);
  97
  98 static device_method_t qla_pci_methods[] = {
  99         /* Device interface */
 100         DEVMETHOD(device_probe, qla_pci_probe),
 101         DEVMETHOD(device_attach, qla_pci_attach),
 102         DEVMETHOD(device_detach, qla_pci_detach),
 103         { 0, 0 }
 104 };
 105
 106 static driver_t qla_pci_driver = {
 107         "ql", qla_pci_methods, sizeof (qla_host_t),
 108 };
 109
 110 static devclass_t qla83xx_devclass;
 111
 112 DRIVER_MODULE(qla83xx, pci, qla_pci_driver, qla83xx_devclass, 0, 0);
 113
 114 MODULE_DEPEND(qla83xx, pci, 1, 1, 1);
 115 MODULE_DEPEND(qla83xx, ether, 1, 1, 1);
 116
 117 MALLOC_DEFINE(M_QLA83XXBUF, "qla83xxbuf", "Buffers for qla83xx driver");
 118
 119 #define QL_STD_REPLENISH_THRES          0
 120 #define QL_JUMBO_REPLENISH_THRES        32
 121
 122
 123 static char dev_str[64];
 124 static char ver_str[64];
 125
 126 /*
 127  * Name:        qla_pci_probe
 128  * Function:    Validate the PCI device to be a QLA80XX device
 129  */
 130 static int
 131 qla_pci_probe(device_t dev)
 132 {
 133         switch ((pci_get_device(dev) << 16) | (pci_get_vendor(dev))) {
 134         case PCI_QLOGIC_ISP8030:
 135                 snprintf(dev_str, sizeof(dev_str), "%s v%d.%d.%d",
 136                         "Qlogic ISP 83xx PCI CNA Adapter-Ethernet Function",
 137                         QLA_VERSION_MAJOR, QLA_VERSION_MINOR,
 138                         QLA_VERSION_BUILD);
 139                 snprintf(ver_str, sizeof(ver_str), "v%d.%d.%d",
 140                         QLA_VERSION_MAJOR, QLA_VERSION_MINOR,
 141                         QLA_VERSION_BUILD);
 142                 device_set_desc(dev, dev_str);
 143                 break;
 144         default:
 145                 return (ENXIO);
 146         }
 147
 148         if (bootverbose)
 149                 printf("%s: %s\n ", __func__, dev_str);
 150
 151         return (BUS_PROBE_DEFAULT);
 152 }
 153
 154 static void
 155 qla_add_sysctls(qla_host_t *ha)
 156 {
 157         device_t dev = ha->pci_dev;
 158
 159         SYSCTL_ADD_STRING(device_get_sysctl_ctx(dev),
 160                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 161                 OID_AUTO, "version", CTLFLAG_RD,
 162                 ver_str, 0, "Driver Version");
 163
 164         SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
 165                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 166                 OID_AUTO, "stats", CTLTYPE_INT | CTLFLAG_RW,
 167                 (void *)ha, 0,
 168                 qla_sysctl_get_stats, "I", "Statistics");
 169
 170         SYSCTL_ADD_STRING(device_get_sysctl_ctx(dev),
 171                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 172                 OID_AUTO, "fw_version", CTLFLAG_RD,
 173                 ha->fw_ver_str, 0, "firmware version");
 174
 175         SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
 176                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 177                 OID_AUTO, "link_status", CTLTYPE_INT | CTLFLAG_RW,
 178                 (void *)ha, 0,
 179                 qla_sysctl_get_link_status, "I", "Link Status");
 180
 181         ha->dbg_level = 0;
 182         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 183                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 184                 OID_AUTO, "debug", CTLFLAG_RW,
 185                 &ha->dbg_level, ha->dbg_level, "Debug Level");
 186
 187         ha->std_replenish = QL_STD_REPLENISH_THRES;
 188         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 189                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 190                 OID_AUTO, "std_replenish", CTLFLAG_RW,
 191                 &ha->std_replenish, ha->std_replenish,
 192                 "Threshold for Replenishing Standard Frames");
 193
 194         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 195                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 196                 OID_AUTO, "ipv4_lro",
 197                 CTLFLAG_RD, &ha->ipv4_lro,
 198                 "number of ipv4 lro completions");
 199
 200         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 201                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 202                 OID_AUTO, "ipv6_lro",
 203                 CTLFLAG_RD, &ha->ipv6_lro,
 204                 "number of ipv6 lro completions");
 205
 206         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 207                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 208                 OID_AUTO, "tx_tso_frames",
 209                 CTLFLAG_RD, &ha->tx_tso_frames,
 210                 "number of Tx TSO Frames");
 211
 212         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 213                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 214                 OID_AUTO, "hw_vlan_tx_frames",
 215                 CTLFLAG_RD, &ha->hw_vlan_tx_frames,
 216                 "number of Tx VLAN Frames");
 217
 218         return;
 219 }
 220
 221 static void
 222 qla_watchdog(void *arg)
 223 {
 224         qla_host_t *ha = arg;
 225         qla_hw_t *hw;
 226         struct ifnet *ifp;
 227         uint32_t i;
 228         qla_hw_tx_cntxt_t *hw_tx_cntxt;
 229
 230         hw = &ha->hw;
 231         ifp = ha->ifp;
 232
 233         if (ha->flags.qla_watchdog_exit) {
 234                 ha->qla_watchdog_exited = 1;
 235                 return;
 236         }
 237         ha->qla_watchdog_exited = 0;
 238
 239         if (!ha->flags.qla_watchdog_pause) {
 240                 if (ql_hw_check_health(ha) || ha->qla_initiate_recovery ||
 241                         (ha->msg_from_peer == QL_PEER_MSG_RESET)) {
 242                         ha->qla_watchdog_paused = 1;
 243                         ha->flags.qla_watchdog_pause = 1;
 244                         ha->qla_initiate_recovery = 0;
 245                         ha->err_inject = 0;
 246                         taskqueue_enqueue(ha->err_tq, &ha->err_task);
 247                 } else if (ha->flags.qla_interface_up) {
 248
 249                         if (ha->async_event) {
 250                                 ha->async_event = 0;
 251                                 taskqueue_enqueue(ha->async_event_tq,
 252                                         &ha->async_event_task);
 253                         }
 254
 255                         for (i = 0; i < ha->hw.num_tx_rings; i++) {
 256                                 hw_tx_cntxt = &hw->tx_cntxt[i];
 257                                 if (qla_le32_to_host(*(hw_tx_cntxt->tx_cons)) !=
 258                                         hw_tx_cntxt->txr_comp) {
 259                                         taskqueue_enqueue(ha->tx_tq,
 260                                                 &ha->tx_task);
 261                                         break;
 262                                 }
 263                         }
 264
 265                         if ((ifp->if_snd.ifq_head != NULL) && QL_RUNNING(ifp)) {
 266                                 taskqueue_enqueue(ha->tx_tq, &ha->tx_task);
 267                         }
 268                         ha->qla_watchdog_paused = 0;
 269                 } else {
 270                         ha->qla_watchdog_paused = 0;
 271                 }
 272         } else {
 273                 ha->qla_watchdog_paused = 1;
 274         }
 275
 276         ha->watchdog_ticks = ha->watchdog_ticks++ % 1000;
 277         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 278                 qla_watchdog, ha);
 279 }
 280
 281 /*
 282  * Name:        qla_pci_attach
 283  * Function:    attaches the device to the operating system
 284  */
 285 static int
 286 qla_pci_attach(device_t dev)
 287 {
 288         qla_host_t *ha = NULL;
 289         uint32_t rsrc_len;
 290         int i;
 291         uint32_t num_rcvq = 0;
 292
 293         if ((ha = device_get_softc(dev)) == NULL) {
 294                 device_printf(dev, "cannot get softc\n");
 295                 return (ENOMEM);
 296         }
 297
 298         memset(ha, 0, sizeof (qla_host_t));
 299
 300         if (pci_get_device(dev) != PCI_PRODUCT_QLOGIC_ISP8030) {
 301                 device_printf(dev, "device is not ISP8030\n");
 302                 return (ENXIO);
 303         }
 304
 305         ha->pci_func = pci_get_function(dev) & 0x1;
 306
 307         ha->pci_dev = dev;
 308
 309         pci_enable_busmaster(dev);
 310
 311         ha->reg_rid = PCIR_BAR(0);
 312         ha->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ha->reg_rid,
 313                                 RF_ACTIVE);
 314
 315         if (ha->pci_reg == NULL) {
 316                 device_printf(dev, "unable to map any ports\n");
 317                 goto qla_pci_attach_err;
 318         }
 319
 320         rsrc_len = (uint32_t) bus_get_resource_count(dev, SYS_RES_MEMORY,
 321                                         ha->reg_rid);
 322
 323         mtx_init(&ha->hw_lock, "qla83xx_hw_lock", MTX_NETWORK_LOCK, MTX_SPIN);
 324
 325         mtx_init(&ha->tx_lock, "qla83xx_tx_lock", MTX_NETWORK_LOCK, MTX_DEF);
 326
 327         qla_add_sysctls(ha);
 328         ql_hw_add_sysctls(ha);
 329
 330         ha->flags.lock_init = 1;
 331
 332         ha->reg_rid1 = PCIR_BAR(2);
 333         ha->pci_reg1 = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
 334                         &ha->reg_rid1, RF_ACTIVE);
 335
 336         ha->msix_count = pci_msix_count(dev);
 337
 338         if (ha->msix_count < (ha->hw.num_sds_rings + 1)) {
 339                 device_printf(dev, "%s: msix_count[%d] not enough\n", __func__,
 340                         ha->msix_count);
 341                 goto qla_pci_attach_err;
 342         }
 343
 344         QL_DPRINT2(ha, (dev, "%s: ha %p pci_func 0x%x rsrc_count 0x%08x"
 345                 " msix_count 0x%x pci_reg %p\n", __func__, ha,
 346                 ha->pci_func, rsrc_len, ha->msix_count, ha->pci_reg));
 347
 348         /* initialize hardware */
 349         if (ql_init_hw(ha)) {
 350                 device_printf(dev, "%s: ql_init_hw failed\n", __func__);
 351                 goto qla_pci_attach_err;
 352         }
 353
 354         device_printf(dev, "%s: firmware[%d.%d.%d.%d]\n", __func__,
 355                 ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 356                 ha->fw_ver_build);
 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         if (qla_get_nic_partition(ha, NULL, &num_rcvq)) {
 362                 device_printf(dev, "%s: qla_get_nic_partition failed\n",
 363                         __func__);
 364                 goto qla_pci_attach_err;
 365         }
 366         device_printf(dev, "%s: ha %p pci_func 0x%x rsrc_count 0x%08x"
 367                 " msix_count 0x%x pci_reg %p num_rcvq = %d\n", __func__, ha,
 368                 ha->pci_func, rsrc_len, ha->msix_count, ha->pci_reg, num_rcvq);
 369
 370
 371 #ifdef QL_ENABLE_ISCSI_TLV
 372         if ((ha->msix_count  < 64) || (num_rcvq != 32)) {
 373                 ha->hw.num_sds_rings = 15;
 374                 ha->hw.num_tx_rings = 32;
 375         }
 376 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
 377         ha->hw.num_rds_rings = ha->hw.num_sds_rings;
 378
 379         ha->msix_count = ha->hw.num_sds_rings + 1;
 380
 381         if (pci_alloc_msix(dev, &ha->msix_count)) {
 382                 device_printf(dev, "%s: pci_alloc_msi[%d] failed\n", __func__,
 383                         ha->msix_count);
 384                 ha->msix_count = 0;
 385                 goto qla_pci_attach_err;
 386         }
 387
 388         ha->mbx_irq_rid = 1;
 389         ha->mbx_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 390                                 &ha->mbx_irq_rid,
 391                                 (RF_ACTIVE | RF_SHAREABLE));
 392         if (ha->mbx_irq == NULL) {
 393                 device_printf(dev, "could not allocate mbx interrupt\n");
 394                 goto qla_pci_attach_err;
 395         }
 396         if (bus_setup_intr(dev, ha->mbx_irq, (INTR_TYPE_NET | INTR_MPSAFE),
 397                 NULL, ql_mbx_isr, ha, &ha->mbx_handle)) {
 398                 device_printf(dev, "could not setup mbx interrupt\n");
 399                 goto qla_pci_attach_err;
 400         }
 401
 402         for (i = 0; i < ha->hw.num_sds_rings; i++) {
 403                 ha->irq_vec[i].sds_idx = i;
 404                 ha->irq_vec[i].ha = ha;
 405                 ha->irq_vec[i].irq_rid = 2 + i;
 406
 407                 ha->irq_vec[i].irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 408                                 &ha->irq_vec[i].irq_rid,
 409                                 (RF_ACTIVE | RF_SHAREABLE));
 410
 411                 if (ha->irq_vec[i].irq == NULL) {
 412                         device_printf(dev, "could not allocate interrupt\n");
 413                         goto qla_pci_attach_err;
 414                 }
 415                 if (bus_setup_intr(dev, ha->irq_vec[i].irq,
 416                         (INTR_TYPE_NET | INTR_MPSAFE),
 417                         NULL, ql_isr, &ha->irq_vec[i],
 418                         &ha->irq_vec[i].handle)) {
 419                         device_printf(dev, "could not setup interrupt\n");
 420                         goto qla_pci_attach_err;
 421                 }
 422         }
 423
 424         printf("%s: mp__ncpus %d sds %d rds %d msi-x %d\n", __func__, mp_ncpus,
 425                 ha->hw.num_sds_rings, ha->hw.num_rds_rings, ha->msix_count);
 426
 427         ql_read_mac_addr(ha);
 428
 429         /* allocate parent dma tag */
 430         if (qla_alloc_parent_dma_tag(ha)) {
 431                 device_printf(dev, "%s: qla_alloc_parent_dma_tag failed\n",
 432                         __func__);
 433                 goto qla_pci_attach_err;
 434         }
 435
 436         /* alloc all dma buffers */
 437         if (ql_alloc_dma(ha)) {
 438                 device_printf(dev, "%s: ql_alloc_dma failed\n", __func__);
 439                 goto qla_pci_attach_err;
 440         }
 441         qla_get_peer(ha);
 442
 443         if (ql_minidump_init(ha) != 0) {
 444                 device_printf(dev, "%s: ql_minidump_init failed\n", __func__);
 445                 goto qla_pci_attach_err;
 446         }
 447         /* create the o.s ethernet interface */
 448         qla_init_ifnet(dev, ha);
 449
 450         ha->flags.qla_watchdog_active = 1;
 451         ha->flags.qla_watchdog_pause = 0;
 452
 453
 454         TASK_INIT(&ha->tx_task, 0, qla_tx_done, ha);
 455         ha->tx_tq = taskqueue_create_fast("qla_txq", M_NOWAIT,
 456                         taskqueue_thread_enqueue, &ha->tx_tq);
 457         taskqueue_start_threads(&ha->tx_tq, 1, PI_NET, "%s txq",
 458                 device_get_nameunit(ha->pci_dev));
 459
 460         callout_init(&ha->tx_callout, TRUE);
 461         ha->flags.qla_callout_init = 1;
 462
 463         /* create ioctl device interface */
 464         if (ql_make_cdev(ha)) {
 465                 device_printf(dev, "%s: ql_make_cdev failed\n", __func__);
 466                 goto qla_pci_attach_err;
 467         }
 468
 469         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 470                 qla_watchdog, ha);
 471
 472         TASK_INIT(&ha->err_task, 0, qla_error_recovery, ha);
 473         ha->err_tq = taskqueue_create_fast("qla_errq", M_NOWAIT,
 474                         taskqueue_thread_enqueue, &ha->err_tq);
 475         taskqueue_start_threads(&ha->err_tq, 1, PI_NET, "%s errq",
 476                 device_get_nameunit(ha->pci_dev));
 477
 478         TASK_INIT(&ha->async_event_task, 0, qla_async_event, ha);
 479         ha->async_event_tq = taskqueue_create_fast("qla_asyncq", M_NOWAIT,
 480                         taskqueue_thread_enqueue, &ha->async_event_tq);
 481         taskqueue_start_threads(&ha->async_event_tq, 1, PI_NET, "%s asyncq",
 482                 device_get_nameunit(ha->pci_dev));
 483
 484         QL_DPRINT2(ha, (dev, "%s: exit 0\n", __func__));
 485         return (0);
 486
 487 qla_pci_attach_err:
 488
 489         qla_release(ha);
 490
 491         QL_DPRINT2(ha, (dev, "%s: exit ENXIO\n", __func__));
 492         return (ENXIO);
 493 }
 494
 495 /*
 496  * Name:        qla_pci_detach
 497  * Function:    Unhooks the device from the operating system
 498  */
 499 static int
 500 qla_pci_detach(device_t dev)
 501 {
 502         qla_host_t *ha = NULL;
 503         struct ifnet *ifp;
 504
 505         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 506
 507         if ((ha = device_get_softc(dev)) == NULL) {
 508                 device_printf(dev, "cannot get softc\n");
 509                 return (ENOMEM);
 510         }
 511
 512         ifp = ha->ifp;
 513
 514         (void)QLA_LOCK(ha, __func__, 0);
 515         qla_stop(ha);
 516         QLA_UNLOCK(ha, __func__);
 517
 518         qla_release(ha);
 519
 520         QL_DPRINT2(ha, (dev, "%s: exit\n", __func__));
 521
 522         return (0);
 523 }
 524
 525 /*
 526  * SYSCTL Related Callbacks
 527  */
 528 static int
 529 qla_sysctl_get_stats(SYSCTL_HANDLER_ARGS)
 530 {
 531         int err, ret = 0;
 532         qla_host_t *ha;
 533
 534         err = sysctl_handle_int(oidp, &ret, 0, req);
 535
 536         if (err || !req->newptr)
 537                 return (err);
 538
 539         if (ret == 1) {
 540                 ha = (qla_host_t *)arg1;
 541                 ql_get_stats(ha);
 542         }
 543         return (err);
 544 }
 545 static int
 546 qla_sysctl_get_link_status(SYSCTL_HANDLER_ARGS)
 547 {
 548         int err, ret = 0;
 549         qla_host_t *ha;
 550
 551         err = sysctl_handle_int(oidp, &ret, 0, req);
 552
 553         if (err || !req->newptr)
 554                 return (err);
 555
 556         if (ret == 1) {
 557                 ha = (qla_host_t *)arg1;
 558                 ql_hw_link_status(ha);
 559         }
 560         return (err);
 561 }
 562
 563 /*
 564  * Name:        qla_release
 565  * Function:    Releases the resources allocated for the device
 566  */
 567 static void
 568 qla_release(qla_host_t *ha)
 569 {
 570         device_t dev;
 571         int i;
 572
 573         dev = ha->pci_dev;
 574
 575         if (ha->async_event_tq) {
 576                 taskqueue_drain(ha->async_event_tq, &ha->async_event_task);
 577                 taskqueue_free(ha->async_event_tq);
 578         }
 579
 580         if (ha->err_tq) {
 581                 taskqueue_drain(ha->err_tq, &ha->err_task);
 582                 taskqueue_free(ha->err_tq);
 583         }
 584
 585         if (ha->tx_tq) {
 586                 taskqueue_drain(ha->tx_tq, &ha->tx_task);
 587                 taskqueue_free(ha->tx_tq);
 588         }
 589
 590         ql_del_cdev(ha);
 591
 592         if (ha->flags.qla_watchdog_active) {
 593                 ha->flags.qla_watchdog_exit = 1;
 594
 595                 while (ha->qla_watchdog_exited == 0)
 596                         qla_mdelay(__func__, 1);
 597         }
 598
 599         if (ha->flags.qla_callout_init)
 600                 callout_stop(&ha->tx_callout);
 601
 602         if (ha->ifp != NULL)
 603                 ether_ifdetach(ha->ifp);
 604
 605         ql_free_dma(ha);
 606         qla_free_parent_dma_tag(ha);
 607
 608         if (ha->mbx_handle)
 609                 (void)bus_teardown_intr(dev, ha->mbx_irq, ha->mbx_handle);
 610
 611         if (ha->mbx_irq)
 612                 (void) bus_release_resource(dev, SYS_RES_IRQ, ha->mbx_irq_rid,
 613                                 ha->mbx_irq);
 614
 615         for (i = 0; i < ha->hw.num_sds_rings; i++) {
 616
 617                 if (ha->irq_vec[i].handle) {
 618                         (void)bus_teardown_intr(dev, ha->irq_vec[i].irq,
 619                                         ha->irq_vec[i].handle);
 620                 }
 621
 622                 if (ha->irq_vec[i].irq) {
 623                         (void)bus_release_resource(dev, SYS_RES_IRQ,
 624                                 ha->irq_vec[i].irq_rid,
 625                                 ha->irq_vec[i].irq);
 626                 }
 627         }
 628
 629         if (ha->msix_count)
 630                 pci_release_msi(dev);
 631
 632         if (ha->flags.lock_init) {
 633                 mtx_destroy(&ha->tx_lock);
 634                 mtx_destroy(&ha->hw_lock);
 635         }
 636
 637         if (ha->pci_reg)
 638                 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid,
 639                                 ha->pci_reg);
 640
 641         if (ha->pci_reg1)
 642                 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid1,
 643                                 ha->pci_reg1);
 644 }
 645
 646 /*
 647  * DMA Related Functions
 648  */
 649
 650 static void
 651 qla_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 652 {
 653         *((bus_addr_t *)arg) = 0;
 654
 655         if (error) {
 656                 printf("%s: bus_dmamap_load failed (%d)\n", __func__, error);
 657                 return;
 658         }
 659
 660         *((bus_addr_t *)arg) = segs[0].ds_addr;
 661
 662         return;
 663 }
 664
 665 int
 666 ql_alloc_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 667 {
 668         int             ret = 0;
 669         device_t        dev;
 670         bus_addr_t      b_addr;
 671
 672         dev = ha->pci_dev;
 673
 674         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 675
 676         ret = bus_dma_tag_create(
 677                         ha->parent_tag,/* parent */
 678                         dma_buf->alignment,
 679                         ((bus_size_t)(1ULL << 32)),/* boundary */
 680                         BUS_SPACE_MAXADDR,      /* lowaddr */
 681                         BUS_SPACE_MAXADDR,      /* highaddr */
 682                         NULL, NULL,             /* filter, filterarg */
 683                         dma_buf->size,          /* maxsize */
 684                         1,                      /* nsegments */
 685                         dma_buf->size,          /* maxsegsize */
 686                         0,                      /* flags */
 687                         NULL, NULL,             /* lockfunc, lockarg */
 688                         &dma_buf->dma_tag);
 689
 690         if (ret) {
 691                 device_printf(dev, "%s: could not create dma tag\n", __func__);
 692                 goto ql_alloc_dmabuf_exit;
 693         }
 694         ret = bus_dmamem_alloc(dma_buf->dma_tag,
 695                         (void **)&dma_buf->dma_b,
 696                         (BUS_DMA_ZERO | BUS_DMA_COHERENT | BUS_DMA_NOWAIT),
 697                         &dma_buf->dma_map);
 698         if (ret) {
 699                 bus_dma_tag_destroy(dma_buf->dma_tag);
 700                 device_printf(dev, "%s: bus_dmamem_alloc failed\n", __func__);
 701                 goto ql_alloc_dmabuf_exit;
 702         }
 703
 704         ret = bus_dmamap_load(dma_buf->dma_tag,
 705                         dma_buf->dma_map,
 706                         dma_buf->dma_b,
 707                         dma_buf->size,
 708                         qla_dmamap_callback,
 709                         &b_addr, BUS_DMA_NOWAIT);
 710
 711         if (ret || !b_addr) {
 712                 bus_dma_tag_destroy(dma_buf->dma_tag);
 713                 bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b,
 714                         dma_buf->dma_map);
 715                 ret = -1;
 716                 goto ql_alloc_dmabuf_exit;
 717         }
 718
 719         dma_buf->dma_addr = b_addr;
 720
 721 ql_alloc_dmabuf_exit:
 722         QL_DPRINT2(ha, (dev, "%s: exit ret 0x%08x tag %p map %p b %p sz 0x%x\n",
 723                 __func__, ret, (void *)dma_buf->dma_tag,
 724                 (void *)dma_buf->dma_map, (void *)dma_buf->dma_b,
 725                 dma_buf->size));
 726
 727         return ret;
 728 }
 729
 730 void
 731 ql_free_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 732 {
 733         bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b, dma_buf->dma_map);
 734         bus_dma_tag_destroy(dma_buf->dma_tag);
 735 }
 736
 737 static int
 738 qla_alloc_parent_dma_tag(qla_host_t *ha)
 739 {
 740         int             ret;
 741         device_t        dev;
 742
 743         dev = ha->pci_dev;
 744
 745         /*
 746          * Allocate parent DMA Tag
 747          */
 748         ret = bus_dma_tag_create(
 749                         bus_get_dma_tag(dev),   /* parent */
 750                         1,((bus_size_t)(1ULL << 32)),/* alignment, boundary */
 751                         BUS_SPACE_MAXADDR,      /* lowaddr */
 752                         BUS_SPACE_MAXADDR,      /* highaddr */
 753                         NULL, NULL,             /* filter, filterarg */
 754                         BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
 755                         0,                      /* nsegments */
 756                         BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
 757                         0,                      /* flags */
 758                         NULL, NULL,             /* lockfunc, lockarg */
 759                         &ha->parent_tag);
 760
 761         if (ret) {
 762                 device_printf(dev, "%s: could not create parent dma tag\n",
 763                         __func__);
 764                 return (-1);
 765         }
 766
 767         ha->flags.parent_tag = 1;
 768
 769         return (0);
 770 }
 771
 772 static void
 773 qla_free_parent_dma_tag(qla_host_t *ha)
 774 {
 775         if (ha->flags.parent_tag) {
 776                 bus_dma_tag_destroy(ha->parent_tag);
 777                 ha->flags.parent_tag = 0;
 778         }
 779 }
 780
 781 /*
 782  * Name: qla_init_ifnet
 783  * Function: Creates the Network Device Interface and Registers it with the O.S
 784  */
 785
 786 static void
 787 qla_init_ifnet(device_t dev, qla_host_t *ha)
 788 {
 789         struct ifnet *ifp;
 790
 791         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 792
 793         ifp = ha->ifp = if_alloc(IFT_ETHER);
 794
 795         if (ifp == NULL)
 796                 panic("%s: cannot if_alloc()\n", device_get_nameunit(dev));
 797
 798         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 799
 800         ifp->if_baudrate = IF_Gbps(10);
 801         ifp->if_capabilities = IFCAP_LINKSTATE;
 802         ifp->if_mtu = ETHERMTU;
 803
 804         ifp->if_init = qla_init;
 805         ifp->if_softc = ha;
 806         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 807         ifp->if_ioctl = qla_ioctl;
 808         ifp->if_start = qla_start;
 809
 810         IFQ_SET_MAXLEN(&ifp->if_snd, qla_get_ifq_snd_maxlen(ha));
 811         ifp->if_snd.ifq_drv_maxlen = qla_get_ifq_snd_maxlen(ha);
 812         IFQ_SET_READY(&ifp->if_snd);
 813
 814         ha->max_frame_size = ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 815
 816         ether_ifattach(ifp, qla_get_mac_addr(ha));
 817
 818         ifp->if_capabilities = IFCAP_HWCSUM |
 819                                 IFCAP_TSO4 |
 820                                 IFCAP_JUMBO_MTU;
 821
 822         ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
 823         ifp->if_capabilities |= IFCAP_VLAN_HWTSO;
 824
 825         ifp->if_capenable = ifp->if_capabilities;
 826
 827         ifp->if_hdrlen = sizeof(struct ether_vlan_header);
 828
 829         ifmedia_init(&ha->media, IFM_IMASK, qla_media_change, qla_media_status);
 830
 831         ifmedia_add(&ha->media, (IFM_ETHER | qla_get_optics(ha) | IFM_FDX), 0,
 832                 NULL);
 833         ifmedia_add(&ha->media, (IFM_ETHER | IFM_AUTO), 0, NULL);
 834
 835         ifmedia_set(&ha->media, (IFM_ETHER | IFM_AUTO));
 836
 837         QL_DPRINT2(ha, (dev, "%s: exit\n", __func__));
 838
 839         return;
 840 }
 841
 842 static void
 843 qla_init_locked(qla_host_t *ha)
 844 {
 845         struct ifnet *ifp = ha->ifp;
 846
 847         qla_stop(ha);
 848
 849         if (qla_alloc_xmt_bufs(ha) != 0)
 850                 return;
 851
 852         qla_confirm_9kb_enable(ha);
 853
 854         if (qla_alloc_rcv_bufs(ha) != 0)
 855                 return;
 856
 857         bcopy(IF_LLADDR(ha->ifp), ha->hw.mac_addr, ETHER_ADDR_LEN);
 858
 859         ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_TSO;
 860
 861         ha->flags.stop_rcv = 0;
 862         if (ql_init_hw_if(ha) == 0) {
 863                 ifp = ha->ifp;
 864                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
 865                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 866                 ha->flags.qla_watchdog_pause = 0;
 867                 ha->hw_vlan_tx_frames = 0;
 868                 ha->tx_tso_frames = 0;
 869                 ha->flags.qla_interface_up = 1;
 870         }
 871
 872         return;
 873 }
 874
 875 static void
 876 qla_init(void *arg)
 877 {
 878         qla_host_t *ha;
 879
 880         ha = (qla_host_t *)arg;
 881
 882         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
 883
 884         (void)QLA_LOCK(ha, __func__, 0);
 885         qla_init_locked(ha);
 886         QLA_UNLOCK(ha, __func__);
 887
 888         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
 889 }
 890
 891 static int
 892 qla_set_multi(qla_host_t *ha, uint32_t add_multi)
 893 {
 894         uint8_t mta[Q8_MAX_NUM_MULTICAST_ADDRS * Q8_MAC_ADDR_LEN];
 895         struct ifmultiaddr *ifma;
 896         int mcnt = 0;
 897         struct ifnet *ifp = ha->ifp;
 898         int ret = 0;
 899
 900         if_maddr_rlock(ifp);
 901
 902         TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 903
 904                 if (ifma->ifma_addr->sa_family != AF_LINK)
 905                         continue;
 906
 907                 if (mcnt == Q8_MAX_NUM_MULTICAST_ADDRS)
 908                         break;
 909
 910                 bcopy(LLADDR((struct sockaddr_dl *) ifma->ifma_addr),
 911                         &mta[mcnt * Q8_MAC_ADDR_LEN], Q8_MAC_ADDR_LEN);
 912
 913                 mcnt++;
 914         }
 915
 916         if_maddr_runlock(ifp);
 917
 918         if (QLA_LOCK(ha, __func__, 1) == 0) {
 919                 ret = ql_hw_set_multi(ha, mta, mcnt, add_multi);
 920                 QLA_UNLOCK(ha, __func__);
 921         }
 922
 923         return (ret);
 924 }
 925
 926 static int
 927 qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 928 {
 929         int ret = 0;
 930         struct ifreq *ifr = (struct ifreq *)data;
 931         struct ifaddr *ifa = (struct ifaddr *)data;
 932         qla_host_t *ha;
 933
 934         ha = (qla_host_t *)ifp->if_softc;
 935
 936         switch (cmd) {
 937         case SIOCSIFADDR:
 938                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFADDR (0x%lx)\n",
 939                         __func__, cmd));
 940
 941                 if (ifa->ifa_addr->sa_family == AF_INET) {
 942                         ifp->if_flags |= IFF_UP;
 943                         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 944                                 (void)QLA_LOCK(ha, __func__, 0);
 945                                 qla_init_locked(ha);
 946                                 QLA_UNLOCK(ha, __func__);
 947                         }
 948                         QL_DPRINT4(ha, (ha->pci_dev,
 949                                 "%s: SIOCSIFADDR (0x%lx) ipv4 [0x%08x]\n",
 950                                 __func__, cmd,
 951                                 ntohl(IA_SIN(ifa)->sin_addr.s_addr)));
 952
 953                         arp_ifinit(ifp, ifa);
 954                 } else {
 955                         ether_ioctl(ifp, cmd, data);
 956                 }
 957                 break;
 958
 959         case SIOCSIFMTU:
 960                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFMTU (0x%lx)\n",
 961                         __func__, cmd));
 962
 963                 if (ifr->ifr_mtu > QLA_MAX_MTU) {
 964                         ret = EINVAL;
 965                 } else {
 966                         (void) QLA_LOCK(ha, __func__, 0);
 967                         ifp->if_mtu = ifr->ifr_mtu;
 968                         ha->max_frame_size =
 969                                 ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 970                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 971                                 ret = ql_set_max_mtu(ha, ha->max_frame_size,
 972                                         ha->hw.rcv_cntxt_id);
 973                         }
 974
 975                         if (ifp->if_mtu > ETHERMTU)
 976                                 ha->std_replenish = QL_JUMBO_REPLENISH_THRES;
 977                         else
 978                                 ha->std_replenish = QL_STD_REPLENISH_THRES;
 979
 980
 981                         QLA_UNLOCK(ha, __func__);
 982
 983                         if (ret)
 984                                 ret = EINVAL;
 985                 }
 986
 987                 break;
 988
 989         case SIOCSIFFLAGS:
 990                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFFLAGS (0x%lx)\n",
 991                         __func__, cmd));
 992
 993                 (void)QLA_LOCK(ha, __func__, 0);
 994
 995                 if (ifp->if_flags & IFF_UP) {
 996                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 997                                 if ((ifp->if_flags ^ ha->if_flags) &
 998                                         IFF_PROMISC) {
 999                                         ret = ql_set_promisc(ha);
1000                                 } else if ((ifp->if_flags ^ ha->if_flags) &
1001                                         IFF_ALLMULTI) {
1002                                         ret = ql_set_allmulti(ha);
1003                                 }
1004                         } else {
1005                                 qla_init_locked(ha);
1006                                 ha->max_frame_size = ifp->if_mtu +
1007                                         ETHER_HDR_LEN + ETHER_CRC_LEN;
1008                                 ret = ql_set_max_mtu(ha, ha->max_frame_size,
1009                                         ha->hw.rcv_cntxt_id);
1010                         }
1011                 } else {
1012                         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1013                                 qla_stop(ha);
1014                         ha->if_flags = ifp->if_flags;
1015                 }
1016
1017                 QLA_UNLOCK(ha, __func__);
1018                 break;
1019
1020         case SIOCADDMULTI:
1021                 QL_DPRINT4(ha, (ha->pci_dev,
1022                         "%s: %s (0x%lx)\n", __func__, "SIOCADDMULTI", cmd));
1023
1024                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1025                         if (qla_set_multi(ha, 1))
1026                                 ret = EINVAL;
1027                 }
1028                 break;
1029
1030         case SIOCDELMULTI:
1031                 QL_DPRINT4(ha, (ha->pci_dev,
1032                         "%s: %s (0x%lx)\n", __func__, "SIOCDELMULTI", cmd));
1033
1034                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1035                         if (qla_set_multi(ha, 0))
1036                                 ret = EINVAL;
1037                 }
1038                 break;
1039
1040         case SIOCSIFMEDIA:
1041         case SIOCGIFMEDIA:
1042                 QL_DPRINT4(ha, (ha->pci_dev,
1043                         "%s: SIOCSIFMEDIA/SIOCGIFMEDIA (0x%lx)\n",
1044                         __func__, cmd));
1045                 ret = ifmedia_ioctl(ifp, ifr, &ha->media, cmd);
1046                 break;
1047
1048         case SIOCSIFCAP:
1049         {
1050                 int mask = ifr->ifr_reqcap ^ ifp->if_capenable;
1051
1052                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFCAP (0x%lx)\n",
1053                         __func__, cmd));
1054
1055                 if (mask & IFCAP_HWCSUM)
1056                         ifp->if_capenable ^= IFCAP_HWCSUM;
1057                 if (mask & IFCAP_TSO4)
1058                         ifp->if_capenable ^= IFCAP_TSO4;
1059                 if (mask & IFCAP_VLAN_HWTAGGING)
1060                         ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
1061                 if (mask & IFCAP_VLAN_HWTSO)
1062                         ifp->if_capenable ^= IFCAP_VLAN_HWTSO;
1063
1064                 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
1065                         qla_init(ha);
1066
1067                 VLAN_CAPABILITIES(ifp);
1068                 break;
1069         }
1070
1071         default:
1072                 QL_DPRINT4(ha, (ha->pci_dev, "%s: default (0x%lx)\n",
1073                         __func__, cmd));
1074                 ret = ether_ioctl(ifp, cmd, data);
1075                 break;
1076         }
1077
1078         return (ret);
1079 }
1080
1081 static int
1082 qla_media_change(struct ifnet *ifp)
1083 {
1084         qla_host_t *ha;
1085         struct ifmedia *ifm;
1086         int ret = 0;
1087
1088         ha = (qla_host_t *)ifp->if_softc;
1089
1090         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1091
1092         ifm = &ha->media;
1093
1094         if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
1095                 ret = EINVAL;
1096
1097         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1098
1099         return (ret);
1100 }
1101
1102 static void
1103 qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr)
1104 {
1105         qla_host_t *ha;
1106
1107         ha = (qla_host_t *)ifp->if_softc;
1108
1109         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1110
1111         ifmr->ifm_status = IFM_AVALID;
1112         ifmr->ifm_active = IFM_ETHER;
1113
1114         ql_update_link_state(ha);
1115         if (ha->hw.link_up) {
1116                 ifmr->ifm_status |= IFM_ACTIVE;
1117                 ifmr->ifm_active |= (IFM_FDX | qla_get_optics(ha));
1118         }
1119
1120         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit (%s)\n", __func__,\
1121                 (ha->hw.link_up ? "link_up" : "link_down")));
1122
1123         return;
1124 }
1125
1126 static void
1127 qla_start(struct ifnet *ifp)
1128 {
1129         struct mbuf    *m_head;
1130         qla_host_t *ha = (qla_host_t *)ifp->if_softc;
1131
1132         QL_DPRINT8(ha, (ha->pci_dev, "%s: enter\n", __func__));
1133
1134         if (!mtx_trylock(&ha->tx_lock)) {
1135                 QL_DPRINT8(ha, (ha->pci_dev,
1136                         "%s: mtx_trylock(&ha->tx_lock) failed\n", __func__));
1137                 return;
1138         }
1139
1140         if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
1141                 IFF_DRV_RUNNING) {
1142                 QL_DPRINT8(ha,
1143                         (ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__));
1144                 QLA_TX_UNLOCK(ha);
1145                 return;
1146         }
1147
1148         if (!ha->hw.link_up || !ha->watchdog_ticks)
1149                 ql_update_link_state(ha);
1150
1151         if (!ha->hw.link_up) {
1152                 QL_DPRINT8(ha, (ha->pci_dev, "%s: link down\n", __func__));
1153                 QLA_TX_UNLOCK(ha);
1154                 return;
1155         }
1156
1157         while (ifp->if_snd.ifq_head != NULL) {
1158                 IF_DEQUEUE(&ifp->if_snd, m_head);
1159
1160                 if (m_head == NULL) {
1161                         QL_DPRINT8(ha, (ha->pci_dev, "%s: m_head == NULL\n",
1162                                 __func__));
1163                         break;
1164                 }
1165
1166                 if (qla_send(ha, &m_head)) {
1167                         if (m_head == NULL)
1168                                 break;
1169                         QL_DPRINT8(ha, (ha->pci_dev, "%s: PREPEND\n", __func__));
1170                         ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1171                         IF_PREPEND(&ifp->if_snd, m_head);
1172                         break;
1173                 }
1174                 /* Send a copy of the frame to the BPF listener */
1175                 ETHER_BPF_MTAP(ifp, m_head);
1176         }
1177         QLA_TX_UNLOCK(ha);
1178         QL_DPRINT8(ha, (ha->pci_dev, "%s: exit\n", __func__));
1179         return;
1180 }
1181
1182 static int
1183 qla_send(qla_host_t *ha, struct mbuf **m_headp)
1184 {
1185         bus_dma_segment_t       segs[QLA_MAX_SEGMENTS];
1186         bus_dmamap_t            map;
1187         int                     nsegs;
1188         int                     ret = -1;
1189         uint32_t                tx_idx;
1190         struct mbuf             *m_head = *m_headp;
1191         uint32_t                txr_idx = ha->txr_idx;
1192         uint32_t                iscsi_pdu = 0;
1193
1194         QL_DPRINT8(ha, (ha->pci_dev, "%s: enter\n", __func__));
1195
1196         /* check if flowid is set */
1197
1198         if (M_HASHTYPE_GET(m_head) != M_HASHTYPE_NONE) {
1199 #ifdef QL_ENABLE_ISCSI_TLV
1200                 if (qla_iscsi_pdu(ha, m_head) == 0) {
1201                         iscsi_pdu = 1;
1202                         txr_idx = m_head->m_pkthdr.flowid &
1203                                         ((ha->hw.num_tx_rings >> 1) - 1);
1204                 } else {
1205                         txr_idx = m_head->m_pkthdr.flowid &
1206                                         (ha->hw.num_tx_rings - 1);
1207                 }
1208 #else
1209                 txr_idx = m_head->m_pkthdr.flowid & (ha->hw.num_tx_rings - 1);
1210 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
1211         }
1212
1213
1214         tx_idx = ha->hw.tx_cntxt[txr_idx].txr_next;
1215         map = ha->tx_ring[txr_idx].tx_buf[tx_idx].map;
1216
1217         ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head, segs, &nsegs,
1218                         BUS_DMA_NOWAIT);
1219
1220         if (ret == EFBIG) {
1221
1222                 struct mbuf *m;
1223
1224                 QL_DPRINT8(ha, (ha->pci_dev, "%s: EFBIG [%d]\n", __func__,
1225                         m_head->m_pkthdr.len));
1226
1227                 m = m_defrag(m_head, M_NOWAIT);
1228                 if (m == NULL) {
1229                         ha->err_tx_defrag++;
1230                         m_freem(m_head);
1231                         *m_headp = NULL;
1232                         device_printf(ha->pci_dev,
1233                                 "%s: m_defrag() = NULL [%d]\n",
1234                                 __func__, ret);
1235                         return (ENOBUFS);
1236                 }
1237                 m_head = m;
1238                 *m_headp = m_head;
1239
1240                 if ((ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head,
1241                                         segs, &nsegs, BUS_DMA_NOWAIT))) {
1242
1243                         ha->err_tx_dmamap_load++;
1244
1245                         device_printf(ha->pci_dev,
1246                                 "%s: bus_dmamap_load_mbuf_sg failed0[%d, %d]\n",
1247                                 __func__, ret, m_head->m_pkthdr.len);
1248
1249                         if (ret != ENOMEM) {
1250                                 m_freem(m_head);
1251                                 *m_headp = NULL;
1252                         }
1253                         return (ret);
1254                 }
1255
1256         } else if (ret) {
1257
1258                 ha->err_tx_dmamap_load++;
1259
1260                 device_printf(ha->pci_dev,
1261                         "%s: bus_dmamap_load_mbuf_sg failed1[%d, %d]\n",
1262                         __func__, ret, m_head->m_pkthdr.len);
1263
1264                 if (ret != ENOMEM) {
1265                         m_freem(m_head);
1266                         *m_headp = NULL;
1267                 }
1268                 return (ret);
1269         }
1270
1271         QL_ASSERT(ha, (nsegs != 0), ("qla_send: empty packet"));
1272
1273         bus_dmamap_sync(ha->tx_tag, map, BUS_DMASYNC_PREWRITE);
1274
1275         if (!(ret = ql_hw_send(ha, segs, nsegs, tx_idx, m_head, txr_idx,
1276                                 iscsi_pdu))) {
1277                 ha->tx_ring[txr_idx].count++;
1278                 ha->tx_ring[txr_idx].tx_buf[tx_idx].m_head = m_head;
1279         } else {
1280                 if (ret == EINVAL) {
1281                         if (m_head)
1282                                 m_freem(m_head);
1283                         *m_headp = NULL;
1284                 }
1285         }
1286
1287         QL_DPRINT8(ha, (ha->pci_dev, "%s: exit\n", __func__));
1288         return (ret);
1289 }
1290
1291 static void
1292 qla_stop(qla_host_t *ha)
1293 {
1294         struct ifnet *ifp = ha->ifp;
1295         device_t        dev;
1296
1297         dev = ha->pci_dev;
1298
1299         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
1300         QLA_TX_LOCK(ha); QLA_TX_UNLOCK(ha);
1301
1302         ha->flags.qla_watchdog_pause = 1;
1303
1304         while (!ha->qla_watchdog_paused)
1305                 qla_mdelay(__func__, 1);
1306
1307         ha->flags.qla_interface_up = 0;
1308
1309         ql_hw_stop_rcv(ha);
1310
1311         ql_del_hw_if(ha);
1312
1313         qla_free_xmt_bufs(ha);
1314         qla_free_rcv_bufs(ha);
1315
1316         return;
1317 }
1318
1319 /*
1320  * Buffer Management Functions for Transmit and Receive Rings
1321  */
1322 static int
1323 qla_alloc_xmt_bufs(qla_host_t *ha)
1324 {
1325         int ret = 0;
1326         uint32_t i, j;
1327         qla_tx_buf_t *txb;
1328
1329         if (bus_dma_tag_create(NULL,    /* parent */
1330                 1, 0,    /* alignment, bounds */
1331                 BUS_SPACE_MAXADDR,       /* lowaddr */
1332                 BUS_SPACE_MAXADDR,       /* highaddr */
1333                 NULL, NULL,      /* filter, filterarg */
1334                 QLA_MAX_TSO_FRAME_SIZE,     /* maxsize */
1335                 QLA_MAX_SEGMENTS,        /* nsegments */
1336                 PAGE_SIZE,        /* maxsegsize */
1337                 BUS_DMA_ALLOCNOW,        /* flags */
1338                 NULL,    /* lockfunc */
1339                 NULL,    /* lockfuncarg */
1340                 &ha->tx_tag)) {
1341                 device_printf(ha->pci_dev, "%s: tx_tag alloc failed\n",
1342                         __func__);
1343                 return (ENOMEM);
1344         }
1345
1346         for (i = 0; i < ha->hw.num_tx_rings; i++) {
1347                 bzero((void *)ha->tx_ring[i].tx_buf,
1348                         (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1349         }
1350
1351         for (j = 0; j < ha->hw.num_tx_rings; j++) {
1352                 for (i = 0; i < NUM_TX_DESCRIPTORS; i++) {
1353
1354                         txb = &ha->tx_ring[j].tx_buf[i];
1355
1356                         if ((ret = bus_dmamap_create(ha->tx_tag,
1357                                         BUS_DMA_NOWAIT, &txb->map))) {
1358
1359                                 ha->err_tx_dmamap_create++;
1360                                 device_printf(ha->pci_dev,
1361                                         "%s: bus_dmamap_create failed[%d]\n",
1362                                         __func__, ret);
1363
1364                                 qla_free_xmt_bufs(ha);
1365
1366                                 return (ret);
1367                         }
1368                 }
1369         }
1370
1371         return 0;
1372 }
1373
1374 /*
1375  * Release mbuf after it sent on the wire
1376  */
1377 static void
1378 qla_clear_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb)
1379 {
1380         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1381
1382         if (txb->m_head && txb->map) {
1383
1384                 bus_dmamap_unload(ha->tx_tag, txb->map);
1385
1386                 m_freem(txb->m_head);
1387                 txb->m_head = NULL;
1388         }
1389
1390         if (txb->map)
1391                 bus_dmamap_destroy(ha->tx_tag, txb->map);
1392
1393         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1394 }
1395
1396 static void
1397 qla_free_xmt_bufs(qla_host_t *ha)
1398 {
1399         int             i, j;
1400
1401         for (j = 0; j < ha->hw.num_tx_rings; j++) {
1402                 for (i = 0; i < NUM_TX_DESCRIPTORS; i++)
1403                         qla_clear_tx_buf(ha, &ha->tx_ring[j].tx_buf[i]);
1404         }
1405
1406         if (ha->tx_tag != NULL) {
1407                 bus_dma_tag_destroy(ha->tx_tag);
1408                 ha->tx_tag = NULL;
1409         }
1410
1411         for (i = 0; i < ha->hw.num_tx_rings; i++) {
1412                 bzero((void *)ha->tx_ring[i].tx_buf,
1413                         (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1414         }
1415         return;
1416 }
1417
1418
1419 static int
1420 qla_alloc_rcv_std(qla_host_t *ha)
1421 {
1422         int             i, j, k, r, ret = 0;
1423         qla_rx_buf_t    *rxb;
1424         qla_rx_ring_t   *rx_ring;
1425
1426         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1427
1428                 rx_ring = &ha->rx_ring[r];
1429
1430                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1431
1432                         rxb = &rx_ring->rx_buf[i];
1433
1434                         ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT,
1435                                         &rxb->map);
1436
1437                         if (ret) {
1438                                 device_printf(ha->pci_dev,
1439                                         "%s: dmamap[%d, %d] failed\n",
1440                                         __func__, r, i);
1441
1442                                 for (k = 0; k < r; k++) {
1443                                         for (j = 0; j < NUM_RX_DESCRIPTORS;
1444                                                 j++) {
1445                                                 rxb = &ha->rx_ring[k].rx_buf[j];
1446                                                 bus_dmamap_destroy(ha->rx_tag,
1447                                                         rxb->map);
1448                                         }
1449                                 }
1450
1451                                 for (j = 0; j < i; j++) {
1452                                         bus_dmamap_destroy(ha->rx_tag,
1453                                                 rx_ring->rx_buf[j].map);
1454                                 }
1455                                 goto qla_alloc_rcv_std_err;
1456                         }
1457                 }
1458         }
1459
1460         qla_init_hw_rcv_descriptors(ha);
1461
1462
1463         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1464
1465                 rx_ring = &ha->rx_ring[r];
1466
1467                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1468                         rxb = &rx_ring->rx_buf[i];
1469                         rxb->handle = i;
1470                         if (!(ret = ql_get_mbuf(ha, rxb, NULL))) {
1471                                 /*
1472                                  * set the physical address in the
1473                                  * corresponding descriptor entry in the
1474                                  * receive ring/queue for the hba
1475                                  */
1476                                 qla_set_hw_rcv_desc(ha, r, i, rxb->handle,
1477                                         rxb->paddr,
1478                                         (rxb->m_head)->m_pkthdr.len);
1479                         } else {
1480                                 device_printf(ha->pci_dev,
1481                                         "%s: ql_get_mbuf [%d, %d] failed\n",
1482                                         __func__, r, i);
1483                                 bus_dmamap_destroy(ha->rx_tag, rxb->map);
1484                                 goto qla_alloc_rcv_std_err;
1485                         }
1486                 }
1487         }
1488         return 0;
1489
1490 qla_alloc_rcv_std_err:
1491         return (-1);
1492 }
1493
1494 static void
1495 qla_free_rcv_std(qla_host_t *ha)
1496 {
1497         int             i, r;
1498         qla_rx_buf_t    *rxb;
1499
1500         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1501                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1502                         rxb = &ha->rx_ring[r].rx_buf[i];
1503                         if (rxb->m_head != NULL) {
1504                                 bus_dmamap_unload(ha->rx_tag, rxb->map);
1505                                 bus_dmamap_destroy(ha->rx_tag, rxb->map);
1506                                 m_freem(rxb->m_head);
1507                                 rxb->m_head = NULL;
1508                         }
1509                 }
1510         }
1511         return;
1512 }
1513
1514 static int
1515 qla_alloc_rcv_bufs(qla_host_t *ha)
1516 {
1517         int             i, ret = 0;
1518
1519         if (bus_dma_tag_create(NULL,    /* parent */
1520                         1, 0,    /* alignment, bounds */
1521                         BUS_SPACE_MAXADDR,       /* lowaddr */
1522                         BUS_SPACE_MAXADDR,       /* highaddr */
1523                         NULL, NULL,      /* filter, filterarg */
1524                         MJUM9BYTES,     /* maxsize */
1525                         1,        /* nsegments */
1526                         MJUM9BYTES,        /* maxsegsize */
1527                         BUS_DMA_ALLOCNOW,        /* flags */
1528                         NULL,    /* lockfunc */
1529                         NULL,    /* lockfuncarg */
1530                         &ha->rx_tag)) {
1531
1532                 device_printf(ha->pci_dev, "%s: rx_tag alloc failed\n",
1533                         __func__);
1534
1535                 return (ENOMEM);
1536         }
1537
1538         bzero((void *)ha->rx_ring, (sizeof(qla_rx_ring_t) * MAX_RDS_RINGS));
1539
1540         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1541                 ha->hw.sds[i].sdsr_next = 0;
1542                 ha->hw.sds[i].rxb_free = NULL;
1543                 ha->hw.sds[i].rx_free = 0;
1544         }
1545
1546         ret = qla_alloc_rcv_std(ha);
1547
1548         return (ret);
1549 }
1550
1551 static void
1552 qla_free_rcv_bufs(qla_host_t *ha)
1553 {
1554         int             i;
1555
1556         qla_free_rcv_std(ha);
1557
1558         if (ha->rx_tag != NULL) {
1559                 bus_dma_tag_destroy(ha->rx_tag);
1560                 ha->rx_tag = NULL;
1561         }
1562
1563         bzero((void *)ha->rx_ring, (sizeof(qla_rx_ring_t) * MAX_RDS_RINGS));
1564
1565         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1566                 ha->hw.sds[i].sdsr_next = 0;
1567                 ha->hw.sds[i].rxb_free = NULL;
1568                 ha->hw.sds[i].rx_free = 0;
1569         }
1570
1571         return;
1572 }
1573
1574 int
1575 ql_get_mbuf(qla_host_t *ha, qla_rx_buf_t *rxb, struct mbuf *nmp)
1576 {
1577         register struct mbuf *mp = nmp;
1578         struct ifnet            *ifp;
1579         int                     ret = 0;
1580         uint32_t                offset;
1581         bus_dma_segment_t       segs[1];
1582         int                     nsegs, mbuf_size;
1583
1584         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1585
1586         ifp = ha->ifp;
1587
1588         if (ha->hw.enable_9kb)
1589                 mbuf_size = MJUM9BYTES;
1590         else
1591                 mbuf_size = MCLBYTES;
1592
1593         if (mp == NULL) {
1594
1595                 if (ha->hw.enable_9kb)
1596                         mp = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, mbuf_size);
1597                 else
1598                         mp = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1599
1600                 if (mp == NULL) {
1601                         ha->err_m_getcl++;
1602                         ret = ENOBUFS;
1603                         device_printf(ha->pci_dev,
1604                                         "%s: m_getcl failed\n", __func__);
1605                         goto exit_ql_get_mbuf;
1606                 }
1607                 mp->m_len = mp->m_pkthdr.len = mbuf_size;
1608         } else {
1609                 mp->m_len = mp->m_pkthdr.len = mbuf_size;
1610                 mp->m_data = mp->m_ext.ext_buf;
1611                 mp->m_next = NULL;
1612         }
1613
1614         offset = (uint32_t)((unsigned long long)mp->m_data & 0x7ULL);
1615         if (offset) {
1616                 offset = 8 - offset;
1617                 m_adj(mp, offset);
1618         }
1619
1620         /*
1621          * Using memory from the mbuf cluster pool, invoke the bus_dma
1622          * machinery to arrange the memory mapping.
1623          */
1624         ret = bus_dmamap_load_mbuf_sg(ha->rx_tag, rxb->map,
1625                         mp, segs, &nsegs, BUS_DMA_NOWAIT);
1626         rxb->paddr = segs[0].ds_addr;
1627
1628         if (ret || !rxb->paddr || (nsegs != 1)) {
1629                 m_free(mp);
1630                 rxb->m_head = NULL;
1631                 device_printf(ha->pci_dev,
1632                         "%s: bus_dmamap_load failed[%d, 0x%016llx, %d]\n",
1633                         __func__, ret, (long long unsigned int)rxb->paddr,
1634                         nsegs);
1635                 ret = -1;
1636                 goto exit_ql_get_mbuf;
1637         }
1638         rxb->m_head = mp;
1639         bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_PREREAD);
1640
1641 exit_ql_get_mbuf:
1642         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit ret = 0x%08x\n", __func__, ret));
1643         return (ret);
1644 }
1645
1646 static void
1647 qla_tx_done(void *context, int pending)
1648 {
1649         qla_host_t *ha = context;
1650         struct ifnet   *ifp;
1651
1652         ifp = ha->ifp;
1653
1654         if (!ifp)
1655                 return;
1656
1657         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1658                 QL_DPRINT8(ha, (ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__));
1659                 return;
1660         }
1661         ql_hw_tx_done(ha);
1662
1663         qla_start(ha->ifp);
1664 }
1665
1666 static void
1667 qla_get_peer(qla_host_t *ha)
1668 {
1669         device_t *peers;
1670         int count, i, slot;
1671         int my_slot = pci_get_slot(ha->pci_dev);
1672
1673         if (device_get_children(device_get_parent(ha->pci_dev), &peers, &count))
1674                 return;
1675
1676         for (i = 0; i < count; i++) {
1677                 slot = pci_get_slot(peers[i]);
1678
1679                 if ((slot >= 0) && (slot == my_slot) &&
1680                         (pci_get_device(peers[i]) ==
1681                                 pci_get_device(ha->pci_dev))) {
1682                         if (ha->pci_dev != peers[i])
1683                                 ha->peer_dev = peers[i];
1684                 }
1685         }
1686 }
1687
1688 static void
1689 qla_send_msg_to_peer(qla_host_t *ha, uint32_t msg_to_peer)
1690 {
1691         qla_host_t *ha_peer;
1692
1693         if (ha->peer_dev) {
1694                 if ((ha_peer = device_get_softc(ha->peer_dev)) != NULL) {
1695
1696                         ha_peer->msg_from_peer = msg_to_peer;
1697                 }
1698         }
1699 }
1700
1701 static void
1702 qla_error_recovery(void *context, int pending)
1703 {
1704         qla_host_t *ha = context;
1705         uint32_t msecs_100 = 100;
1706         struct ifnet *ifp = ha->ifp;
1707
1708         (void)QLA_LOCK(ha, __func__, 0);
1709
1710         if (ha->flags.qla_interface_up) {
1711
1712         ha->hw.imd_compl = 1;
1713         qla_mdelay(__func__, 300);
1714
1715         ql_hw_stop_rcv(ha);
1716
1717         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
1718                 QLA_TX_LOCK(ha); QLA_TX_UNLOCK(ha);
1719         }
1720
1721         QLA_UNLOCK(ha, __func__);
1722
1723         if ((ha->pci_func & 0x1) == 0) {
1724
1725                 if (!ha->msg_from_peer) {
1726                         qla_send_msg_to_peer(ha, QL_PEER_MSG_RESET);
1727
1728                         while ((ha->msg_from_peer != QL_PEER_MSG_ACK) &&
1729                                 msecs_100--)
1730                                 qla_mdelay(__func__, 100);
1731                 }
1732
1733                 ha->msg_from_peer = 0;
1734
1735                 (void)QLA_LOCK(ha, __func__, 0);
1736                 ql_minidump(ha);
1737                 QLA_UNLOCK(ha, __func__);
1738
1739                 (void) ql_init_hw(ha);
1740
1741                 (void)QLA_LOCK(ha, __func__, 0);
1742                 if (ha->flags.qla_interface_up) {
1743                 qla_free_xmt_bufs(ha);
1744                 qla_free_rcv_bufs(ha);
1745                 }
1746                 QLA_UNLOCK(ha, __func__);
1747
1748                 qla_send_msg_to_peer(ha, QL_PEER_MSG_ACK);
1749
1750         } else {
1751                 if (ha->msg_from_peer == QL_PEER_MSG_RESET) {
1752
1753                         ha->msg_from_peer = 0;
1754
1755                         qla_send_msg_to_peer(ha, QL_PEER_MSG_ACK);
1756                 } else {
1757                         qla_send_msg_to_peer(ha, QL_PEER_MSG_RESET);
1758                 }
1759
1760                 while ((ha->msg_from_peer != QL_PEER_MSG_ACK)  && msecs_100--)
1761                         qla_mdelay(__func__, 100);
1762                 ha->msg_from_peer = 0;
1763
1764                 (void) ql_init_hw(ha);
1765
1766                 (void)QLA_LOCK(ha, __func__, 0);
1767                 if (ha->flags.qla_interface_up) {
1768                 qla_free_xmt_bufs(ha);
1769                 qla_free_rcv_bufs(ha);
1770         }
1771                 QLA_UNLOCK(ha, __func__);
1772         }
1773
1774         (void)QLA_LOCK(ha, __func__, 0);
1775
1776         if (ha->flags.qla_interface_up) {
1777         if (qla_alloc_xmt_bufs(ha) != 0) {
1778                 QLA_UNLOCK(ha, __func__);
1779                 return;
1780         }
1781         qla_confirm_9kb_enable(ha);
1782
1783         if (qla_alloc_rcv_bufs(ha) != 0) {
1784                 QLA_UNLOCK(ha, __func__);
1785                 return;
1786         }
1787
1788         ha->flags.stop_rcv = 0;
1789         if (ql_init_hw_if(ha) == 0) {
1790                 ifp = ha->ifp;
1791                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
1792                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1793                 ha->flags.qla_watchdog_pause = 0;
1794         }
1795         } else
1796                 ha->flags.qla_watchdog_pause = 0;
1797
1798         QLA_UNLOCK(ha, __func__);
1799 }
1800
1801 static void
1802 qla_async_event(void *context, int pending)
1803 {
1804         qla_host_t *ha = context;
1805
1806         (void)QLA_LOCK(ha, __func__, 0);
1807         qla_hw_async_event(ha);
1808         QLA_UNLOCK(ha, __func__);
1809 }
1810