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 #if __FreeBSD_version >= 1000000
 801         if_initbaudrate(ifp, IF_Gbps(10));
 802         ifp->if_capabilities = IFCAP_LINKSTATE;
 803 #else
 804         ifp->if_mtu = ETHERMTU;
 805         ifp->if_baudrate = (1 * 1000 * 1000 *1000);
 806
 807 #endif /* #if __FreeBSD_version >= 1000000 */
 808
 809         ifp->if_init = qla_init;
 810         ifp->if_softc = ha;
 811         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 812         ifp->if_ioctl = qla_ioctl;
 813         ifp->if_start = qla_start;
 814
 815         IFQ_SET_MAXLEN(&ifp->if_snd, qla_get_ifq_snd_maxlen(ha));
 816         ifp->if_snd.ifq_drv_maxlen = qla_get_ifq_snd_maxlen(ha);
 817         IFQ_SET_READY(&ifp->if_snd);
 818
 819         ha->max_frame_size = ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 820
 821         ether_ifattach(ifp, qla_get_mac_addr(ha));
 822
 823         ifp->if_capabilities = IFCAP_HWCSUM |
 824                                 IFCAP_TSO4 |
 825                                 IFCAP_JUMBO_MTU;
 826
 827         ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
 828         ifp->if_capabilities |= IFCAP_VLAN_HWTSO;
 829
 830         ifp->if_capenable = ifp->if_capabilities;
 831
 832         ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
 833
 834         ifmedia_init(&ha->media, IFM_IMASK, qla_media_change, qla_media_status);
 835
 836         ifmedia_add(&ha->media, (IFM_ETHER | qla_get_optics(ha) | IFM_FDX), 0,
 837                 NULL);
 838         ifmedia_add(&ha->media, (IFM_ETHER | IFM_AUTO), 0, NULL);
 839
 840         ifmedia_set(&ha->media, (IFM_ETHER | IFM_AUTO));
 841
 842         QL_DPRINT2(ha, (dev, "%s: exit\n", __func__));
 843
 844         return;
 845 }
 846
 847 static void
 848 qla_init_locked(qla_host_t *ha)
 849 {
 850         struct ifnet *ifp = ha->ifp;
 851
 852         qla_stop(ha);
 853
 854         if (qla_alloc_xmt_bufs(ha) != 0)
 855                 return;
 856
 857         qla_confirm_9kb_enable(ha);
 858
 859         if (qla_alloc_rcv_bufs(ha) != 0)
 860                 return;
 861
 862         bcopy(IF_LLADDR(ha->ifp), ha->hw.mac_addr, ETHER_ADDR_LEN);
 863
 864         ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_TSO;
 865
 866         ha->flags.stop_rcv = 0;
 867         if (ql_init_hw_if(ha) == 0) {
 868                 ifp = ha->ifp;
 869                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
 870                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 871                 ha->flags.qla_watchdog_pause = 0;
 872                 ha->hw_vlan_tx_frames = 0;
 873                 ha->tx_tso_frames = 0;
 874                 ha->flags.qla_interface_up = 1;
 875         }
 876
 877         return;
 878 }
 879
 880 static void
 881 qla_init(void *arg)
 882 {
 883         qla_host_t *ha;
 884
 885         ha = (qla_host_t *)arg;
 886
 887         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
 888
 889         (void)QLA_LOCK(ha, __func__, 0);
 890         qla_init_locked(ha);
 891         QLA_UNLOCK(ha, __func__);
 892
 893         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
 894 }
 895
 896 static int
 897 qla_set_multi(qla_host_t *ha, uint32_t add_multi)
 898 {
 899         uint8_t mta[Q8_MAX_NUM_MULTICAST_ADDRS * Q8_MAC_ADDR_LEN];
 900         struct ifmultiaddr *ifma;
 901         int mcnt = 0;
 902         struct ifnet *ifp = ha->ifp;
 903         int ret = 0;
 904
 905         if_maddr_rlock(ifp);
 906
 907         TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 908
 909                 if (ifma->ifma_addr->sa_family != AF_LINK)
 910                         continue;
 911
 912                 if (mcnt == Q8_MAX_NUM_MULTICAST_ADDRS)
 913                         break;
 914
 915                 bcopy(LLADDR((struct sockaddr_dl *) ifma->ifma_addr),
 916                         &mta[mcnt * Q8_MAC_ADDR_LEN], Q8_MAC_ADDR_LEN);
 917
 918                 mcnt++;
 919         }
 920
 921         if_maddr_runlock(ifp);
 922
 923         if (QLA_LOCK(ha, __func__, 1) == 0) {
 924                 ret = ql_hw_set_multi(ha, mta, mcnt, add_multi);
 925                 QLA_UNLOCK(ha, __func__);
 926         }
 927
 928         return (ret);
 929 }
 930
 931 static int
 932 qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 933 {
 934         int ret = 0;
 935         struct ifreq *ifr = (struct ifreq *)data;
 936         struct ifaddr *ifa = (struct ifaddr *)data;
 937         qla_host_t *ha;
 938
 939         ha = (qla_host_t *)ifp->if_softc;
 940
 941         switch (cmd) {
 942         case SIOCSIFADDR:
 943                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFADDR (0x%lx)\n",
 944                         __func__, cmd));
 945
 946                 if (ifa->ifa_addr->sa_family == AF_INET) {
 947                         ifp->if_flags |= IFF_UP;
 948                         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 949                                 (void)QLA_LOCK(ha, __func__, 0);
 950                                 qla_init_locked(ha);
 951                                 QLA_UNLOCK(ha, __func__);
 952                         }
 953                         QL_DPRINT4(ha, (ha->pci_dev,
 954                                 "%s: SIOCSIFADDR (0x%lx) ipv4 [0x%08x]\n",
 955                                 __func__, cmd,
 956                                 ntohl(IA_SIN(ifa)->sin_addr.s_addr)));
 957
 958                         arp_ifinit(ifp, ifa);
 959                 } else {
 960                         ether_ioctl(ifp, cmd, data);
 961                 }
 962                 break;
 963
 964         case SIOCSIFMTU:
 965                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFMTU (0x%lx)\n",
 966                         __func__, cmd));
 967
 968                 if (ifr->ifr_mtu > QLA_MAX_MTU) {
 969                         ret = EINVAL;
 970                 } else {
 971                         (void) QLA_LOCK(ha, __func__, 0);
 972                         ifp->if_mtu = ifr->ifr_mtu;
 973                         ha->max_frame_size =
 974                                 ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 975                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 976                                 ret = ql_set_max_mtu(ha, ha->max_frame_size,
 977                                         ha->hw.rcv_cntxt_id);
 978                         }
 979
 980                         if (ifp->if_mtu > ETHERMTU)
 981                                 ha->std_replenish = QL_JUMBO_REPLENISH_THRES;
 982                         else
 983                                 ha->std_replenish = QL_STD_REPLENISH_THRES;
 984
 985
 986                         QLA_UNLOCK(ha, __func__);
 987
 988                         if (ret)
 989                                 ret = EINVAL;
 990                 }
 991
 992                 break;
 993
 994         case SIOCSIFFLAGS:
 995                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFFLAGS (0x%lx)\n",
 996                         __func__, cmd));
 997
 998                 (void)QLA_LOCK(ha, __func__, 0);
 999
1000                 if (ifp->if_flags & IFF_UP) {
1001                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1002                                 if ((ifp->if_flags ^ ha->if_flags) &
1003                                         IFF_PROMISC) {
1004                                         ret = ql_set_promisc(ha);
1005                                 } else if ((ifp->if_flags ^ ha->if_flags) &
1006                                         IFF_ALLMULTI) {
1007                                         ret = ql_set_allmulti(ha);
1008                                 }
1009                         } else {
1010                                 qla_init_locked(ha);
1011                                 ha->max_frame_size = ifp->if_mtu +
1012                                         ETHER_HDR_LEN + ETHER_CRC_LEN;
1013                                 ret = ql_set_max_mtu(ha, ha->max_frame_size,
1014                                         ha->hw.rcv_cntxt_id);
1015                         }
1016                 } else {
1017                         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1018                                 qla_stop(ha);
1019                         ha->if_flags = ifp->if_flags;
1020                 }
1021
1022                 QLA_UNLOCK(ha, __func__);
1023                 break;
1024
1025         case SIOCADDMULTI:
1026                 QL_DPRINT4(ha, (ha->pci_dev,
1027                         "%s: %s (0x%lx)\n", __func__, "SIOCADDMULTI", cmd));
1028
1029                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1030                         if (qla_set_multi(ha, 1))
1031                                 ret = EINVAL;
1032                 }
1033                 break;
1034
1035         case SIOCDELMULTI:
1036                 QL_DPRINT4(ha, (ha->pci_dev,
1037                         "%s: %s (0x%lx)\n", __func__, "SIOCDELMULTI", cmd));
1038
1039                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1040                         if (qla_set_multi(ha, 0))
1041                                 ret = EINVAL;
1042                 }
1043                 break;
1044
1045         case SIOCSIFMEDIA:
1046         case SIOCGIFMEDIA:
1047                 QL_DPRINT4(ha, (ha->pci_dev,
1048                         "%s: SIOCSIFMEDIA/SIOCGIFMEDIA (0x%lx)\n",
1049                         __func__, cmd));
1050                 ret = ifmedia_ioctl(ifp, ifr, &ha->media, cmd);
1051                 break;
1052
1053         case SIOCSIFCAP:
1054         {
1055                 int mask = ifr->ifr_reqcap ^ ifp->if_capenable;
1056
1057                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFCAP (0x%lx)\n",
1058                         __func__, cmd));
1059
1060                 if (mask & IFCAP_HWCSUM)
1061                         ifp->if_capenable ^= IFCAP_HWCSUM;
1062                 if (mask & IFCAP_TSO4)
1063                         ifp->if_capenable ^= IFCAP_TSO4;
1064                 if (mask & IFCAP_VLAN_HWTAGGING)
1065                         ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
1066                 if (mask & IFCAP_VLAN_HWTSO)
1067                         ifp->if_capenable ^= IFCAP_VLAN_HWTSO;
1068
1069                 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
1070                         qla_init(ha);
1071
1072                 VLAN_CAPABILITIES(ifp);
1073                 break;
1074         }
1075
1076         default:
1077                 QL_DPRINT4(ha, (ha->pci_dev, "%s: default (0x%lx)\n",
1078                         __func__, cmd));
1079                 ret = ether_ioctl(ifp, cmd, data);
1080                 break;
1081         }
1082
1083         return (ret);
1084 }
1085
1086 static int
1087 qla_media_change(struct ifnet *ifp)
1088 {
1089         qla_host_t *ha;
1090         struct ifmedia *ifm;
1091         int ret = 0;
1092
1093         ha = (qla_host_t *)ifp->if_softc;
1094
1095         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1096
1097         ifm = &ha->media;
1098
1099         if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
1100                 ret = EINVAL;
1101
1102         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1103
1104         return (ret);
1105 }
1106
1107 static void
1108 qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr)
1109 {
1110         qla_host_t *ha;
1111
1112         ha = (qla_host_t *)ifp->if_softc;
1113
1114         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1115
1116         ifmr->ifm_status = IFM_AVALID;
1117         ifmr->ifm_active = IFM_ETHER;
1118
1119         ql_update_link_state(ha);
1120         if (ha->hw.link_up) {
1121                 ifmr->ifm_status |= IFM_ACTIVE;
1122                 ifmr->ifm_active |= (IFM_FDX | qla_get_optics(ha));
1123         }
1124
1125         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit (%s)\n", __func__,\
1126                 (ha->hw.link_up ? "link_up" : "link_down")));
1127
1128         return;
1129 }
1130
1131 static void
1132 qla_start(struct ifnet *ifp)
1133 {
1134         struct mbuf    *m_head;
1135         qla_host_t *ha = (qla_host_t *)ifp->if_softc;
1136
1137         QL_DPRINT8(ha, (ha->pci_dev, "%s: enter\n", __func__));
1138
1139         if (!mtx_trylock(&ha->tx_lock)) {
1140                 QL_DPRINT8(ha, (ha->pci_dev,
1141                         "%s: mtx_trylock(&ha->tx_lock) failed\n", __func__));
1142                 return;
1143         }
1144
1145         if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
1146                 IFF_DRV_RUNNING) {
1147                 QL_DPRINT8(ha,
1148                         (ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__));
1149                 QLA_TX_UNLOCK(ha);
1150                 return;
1151         }
1152
1153         if (!ha->hw.link_up || !ha->watchdog_ticks)
1154                 ql_update_link_state(ha);
1155
1156         if (!ha->hw.link_up) {
1157                 QL_DPRINT8(ha, (ha->pci_dev, "%s: link down\n", __func__));
1158                 QLA_TX_UNLOCK(ha);
1159                 return;
1160         }
1161
1162         while (ifp->if_snd.ifq_head != NULL) {
1163                 IF_DEQUEUE(&ifp->if_snd, m_head);
1164
1165                 if (m_head == NULL) {
1166                         QL_DPRINT8(ha, (ha->pci_dev, "%s: m_head == NULL\n",
1167                                 __func__));
1168                         break;
1169                 }
1170
1171                 if (qla_send(ha, &m_head)) {
1172                         if (m_head == NULL)
1173                                 break;
1174                         QL_DPRINT8(ha, (ha->pci_dev, "%s: PREPEND\n", __func__));
1175                         ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1176                         IF_PREPEND(&ifp->if_snd, m_head);
1177                         break;
1178                 }
1179                 /* Send a copy of the frame to the BPF listener */
1180                 ETHER_BPF_MTAP(ifp, m_head);
1181         }
1182         QLA_TX_UNLOCK(ha);
1183         QL_DPRINT8(ha, (ha->pci_dev, "%s: exit\n", __func__));
1184         return;
1185 }
1186
1187 static int
1188 qla_send(qla_host_t *ha, struct mbuf **m_headp)
1189 {
1190         bus_dma_segment_t       segs[QLA_MAX_SEGMENTS];
1191         bus_dmamap_t            map;
1192         int                     nsegs;
1193         int                     ret = -1;
1194         uint32_t                tx_idx;
1195         struct mbuf             *m_head = *m_headp;
1196         uint32_t                txr_idx = ha->txr_idx;
1197         uint32_t                iscsi_pdu = 0;
1198
1199         QL_DPRINT8(ha, (ha->pci_dev, "%s: enter\n", __func__));
1200
1201         if (m_head->m_flags & M_FLOWID) {
1202 #ifdef QL_ENABLE_ISCSI_TLV
1203                 if (qla_iscsi_pdu(ha, m_head) == 0) {
1204                         iscsi_pdu = 1;
1205                         txr_idx = m_head->m_pkthdr.flowid &
1206                                         ((ha->hw.num_tx_rings >> 1) - 1);
1207                 } else {
1208                         txr_idx = m_head->m_pkthdr.flowid &
1209                                         (ha->hw.num_tx_rings - 1);
1210                 }
1211 #else
1212                 txr_idx = m_head->m_pkthdr.flowid & (ha->hw.num_tx_rings - 1);
1213 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
1214         }
1215
1216
1217         tx_idx = ha->hw.tx_cntxt[txr_idx].txr_next;
1218         map = ha->tx_ring[txr_idx].tx_buf[tx_idx].map;
1219
1220         ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head, segs, &nsegs,
1221                         BUS_DMA_NOWAIT);
1222
1223         if (ret == EFBIG) {
1224
1225                 struct mbuf *m;
1226
1227                 QL_DPRINT8(ha, (ha->pci_dev, "%s: EFBIG [%d]\n", __func__,
1228                         m_head->m_pkthdr.len));
1229
1230                 m = m_defrag(m_head, M_NOWAIT);
1231                 if (m == NULL) {
1232                         ha->err_tx_defrag++;
1233                         m_freem(m_head);
1234                         *m_headp = NULL;
1235                         device_printf(ha->pci_dev,
1236                                 "%s: m_defrag() = NULL [%d]\n",
1237                                 __func__, ret);
1238                         return (ENOBUFS);
1239                 }
1240                 m_head = m;
1241                 *m_headp = m_head;
1242
1243                 if ((ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head,
1244                                         segs, &nsegs, BUS_DMA_NOWAIT))) {
1245
1246                         ha->err_tx_dmamap_load++;
1247
1248                         device_printf(ha->pci_dev,
1249                                 "%s: bus_dmamap_load_mbuf_sg failed0[%d, %d]\n",
1250                                 __func__, ret, m_head->m_pkthdr.len);
1251
1252                         if (ret != ENOMEM) {
1253                                 m_freem(m_head);
1254                                 *m_headp = NULL;
1255                         }
1256                         return (ret);
1257                 }
1258
1259         } else if (ret) {
1260
1261                 ha->err_tx_dmamap_load++;
1262
1263                 device_printf(ha->pci_dev,
1264                         "%s: bus_dmamap_load_mbuf_sg failed1[%d, %d]\n",
1265                         __func__, ret, m_head->m_pkthdr.len);
1266
1267                 if (ret != ENOMEM) {
1268                         m_freem(m_head);
1269                         *m_headp = NULL;
1270                 }
1271                 return (ret);
1272         }
1273
1274         QL_ASSERT(ha, (nsegs != 0), ("qla_send: empty packet"));
1275
1276         bus_dmamap_sync(ha->tx_tag, map, BUS_DMASYNC_PREWRITE);
1277
1278         if (!(ret = ql_hw_send(ha, segs, nsegs, tx_idx, m_head, txr_idx,
1279                                 iscsi_pdu))) {
1280                 ha->tx_ring[txr_idx].count++;
1281                 ha->tx_ring[txr_idx].tx_buf[tx_idx].m_head = m_head;
1282         } else {
1283                 if (ret == EINVAL) {
1284                         if (m_head)
1285                                 m_freem(m_head);
1286                         *m_headp = NULL;
1287                 }
1288         }
1289
1290         QL_DPRINT8(ha, (ha->pci_dev, "%s: exit\n", __func__));
1291         return (ret);
1292 }
1293
1294 static void
1295 qla_stop(qla_host_t *ha)
1296 {
1297         struct ifnet *ifp = ha->ifp;
1298         device_t        dev;
1299
1300         dev = ha->pci_dev;
1301
1302         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
1303         QLA_TX_LOCK(ha); QLA_TX_UNLOCK(ha);
1304
1305         ha->flags.qla_watchdog_pause = 1;
1306
1307         while (!ha->qla_watchdog_paused)
1308                 qla_mdelay(__func__, 1);
1309
1310         ha->flags.qla_interface_up = 0;
1311
1312         ql_hw_stop_rcv(ha);
1313
1314         ql_del_hw_if(ha);
1315
1316         qla_free_xmt_bufs(ha);
1317         qla_free_rcv_bufs(ha);
1318
1319         return;
1320 }
1321
1322 /*
1323  * Buffer Management Functions for Transmit and Receive Rings
1324  */
1325 static int
1326 qla_alloc_xmt_bufs(qla_host_t *ha)
1327 {
1328         int ret = 0;
1329         uint32_t i, j;
1330         qla_tx_buf_t *txb;
1331
1332         if (bus_dma_tag_create(NULL,    /* parent */
1333                 1, 0,    /* alignment, bounds */
1334                 BUS_SPACE_MAXADDR,       /* lowaddr */
1335                 BUS_SPACE_MAXADDR,       /* highaddr */
1336                 NULL, NULL,      /* filter, filterarg */
1337                 QLA_MAX_TSO_FRAME_SIZE,     /* maxsize */
1338                 QLA_MAX_SEGMENTS,        /* nsegments */
1339                 PAGE_SIZE,        /* maxsegsize */
1340                 BUS_DMA_ALLOCNOW,        /* flags */
1341                 NULL,    /* lockfunc */
1342                 NULL,    /* lockfuncarg */
1343                 &ha->tx_tag)) {
1344                 device_printf(ha->pci_dev, "%s: tx_tag alloc failed\n",
1345                         __func__);
1346                 return (ENOMEM);
1347         }
1348
1349         for (i = 0; i < ha->hw.num_tx_rings; i++) {
1350                 bzero((void *)ha->tx_ring[i].tx_buf,
1351                         (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1352         }
1353
1354         for (j = 0; j < ha->hw.num_tx_rings; j++) {
1355                 for (i = 0; i < NUM_TX_DESCRIPTORS; i++) {
1356
1357                         txb = &ha->tx_ring[j].tx_buf[i];
1358
1359                         if ((ret = bus_dmamap_create(ha->tx_tag,
1360                                         BUS_DMA_NOWAIT, &txb->map))) {
1361
1362                                 ha->err_tx_dmamap_create++;
1363                                 device_printf(ha->pci_dev,
1364                                         "%s: bus_dmamap_create failed[%d]\n",
1365                                         __func__, ret);
1366
1367                                 qla_free_xmt_bufs(ha);
1368
1369                                 return (ret);
1370                         }
1371                 }
1372         }
1373
1374         return 0;
1375 }
1376
1377 /*
1378  * Release mbuf after it sent on the wire
1379  */
1380 static void
1381 qla_clear_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb)
1382 {
1383         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1384
1385         if (txb->m_head && txb->map) {
1386
1387                 bus_dmamap_unload(ha->tx_tag, txb->map);
1388
1389                 m_freem(txb->m_head);
1390                 txb->m_head = NULL;
1391         }
1392
1393         if (txb->map)
1394                 bus_dmamap_destroy(ha->tx_tag, txb->map);
1395
1396         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1397 }
1398
1399 static void
1400 qla_free_xmt_bufs(qla_host_t *ha)
1401 {
1402         int             i, j;
1403
1404         for (j = 0; j < ha->hw.num_tx_rings; j++) {
1405                 for (i = 0; i < NUM_TX_DESCRIPTORS; i++)
1406                         qla_clear_tx_buf(ha, &ha->tx_ring[j].tx_buf[i]);
1407         }
1408
1409         if (ha->tx_tag != NULL) {
1410                 bus_dma_tag_destroy(ha->tx_tag);
1411                 ha->tx_tag = NULL;
1412         }
1413
1414         for (i = 0; i < ha->hw.num_tx_rings; i++) {
1415                 bzero((void *)ha->tx_ring[i].tx_buf,
1416                         (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1417         }
1418         return;
1419 }
1420
1421
1422 static int
1423 qla_alloc_rcv_std(qla_host_t *ha)
1424 {
1425         int             i, j, k, r, ret = 0;
1426         qla_rx_buf_t    *rxb;
1427         qla_rx_ring_t   *rx_ring;
1428
1429         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1430
1431                 rx_ring = &ha->rx_ring[r];
1432
1433                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1434
1435                         rxb = &rx_ring->rx_buf[i];
1436
1437                         ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT,
1438                                         &rxb->map);
1439
1440                         if (ret) {
1441                                 device_printf(ha->pci_dev,
1442                                         "%s: dmamap[%d, %d] failed\n",
1443                                         __func__, r, i);
1444
1445                                 for (k = 0; k < r; k++) {
1446                                         for (j = 0; j < NUM_RX_DESCRIPTORS;
1447                                                 j++) {
1448                                                 rxb = &ha->rx_ring[k].rx_buf[j];
1449                                                 bus_dmamap_destroy(ha->rx_tag,
1450                                                         rxb->map);
1451                                         }
1452                                 }
1453
1454                                 for (j = 0; j < i; j++) {
1455                                         bus_dmamap_destroy(ha->rx_tag,
1456                                                 rx_ring->rx_buf[j].map);
1457                                 }
1458                                 goto qla_alloc_rcv_std_err;
1459                         }
1460                 }
1461         }
1462
1463         qla_init_hw_rcv_descriptors(ha);
1464
1465
1466         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1467
1468                 rx_ring = &ha->rx_ring[r];
1469
1470                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1471                         rxb = &rx_ring->rx_buf[i];
1472                         rxb->handle = i;
1473                         if (!(ret = ql_get_mbuf(ha, rxb, NULL))) {
1474                                 /*
1475                                  * set the physical address in the
1476                                  * corresponding descriptor entry in the
1477                                  * receive ring/queue for the hba
1478                                  */
1479                                 qla_set_hw_rcv_desc(ha, r, i, rxb->handle,
1480                                         rxb->paddr,
1481                                         (rxb->m_head)->m_pkthdr.len);
1482                         } else {
1483                                 device_printf(ha->pci_dev,
1484                                         "%s: ql_get_mbuf [%d, %d] failed\n",
1485                                         __func__, r, i);
1486                                 bus_dmamap_destroy(ha->rx_tag, rxb->map);
1487                                 goto qla_alloc_rcv_std_err;
1488                         }
1489                 }
1490         }
1491         return 0;
1492
1493 qla_alloc_rcv_std_err:
1494         return (-1);
1495 }
1496
1497 static void
1498 qla_free_rcv_std(qla_host_t *ha)
1499 {
1500         int             i, r;
1501         qla_rx_buf_t    *rxb;
1502
1503         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1504                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1505                         rxb = &ha->rx_ring[r].rx_buf[i];
1506                         if (rxb->m_head != NULL) {
1507                                 bus_dmamap_unload(ha->rx_tag, rxb->map);
1508                                 bus_dmamap_destroy(ha->rx_tag, rxb->map);
1509                                 m_freem(rxb->m_head);
1510                                 rxb->m_head = NULL;
1511                         }
1512                 }
1513         }
1514         return;
1515 }
1516
1517 static int
1518 qla_alloc_rcv_bufs(qla_host_t *ha)
1519 {
1520         int             i, ret = 0;
1521
1522         if (bus_dma_tag_create(NULL,    /* parent */
1523                         1, 0,    /* alignment, bounds */
1524                         BUS_SPACE_MAXADDR,       /* lowaddr */
1525                         BUS_SPACE_MAXADDR,       /* highaddr */
1526                         NULL, NULL,      /* filter, filterarg */
1527                         MJUM9BYTES,     /* maxsize */
1528                         1,        /* nsegments */
1529                         MJUM9BYTES,        /* maxsegsize */
1530                         BUS_DMA_ALLOCNOW,        /* flags */
1531                         NULL,    /* lockfunc */
1532                         NULL,    /* lockfuncarg */
1533                         &ha->rx_tag)) {
1534
1535                 device_printf(ha->pci_dev, "%s: rx_tag alloc failed\n",
1536                         __func__);
1537
1538                 return (ENOMEM);
1539         }
1540
1541         bzero((void *)ha->rx_ring, (sizeof(qla_rx_ring_t) * MAX_RDS_RINGS));
1542
1543         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1544                 ha->hw.sds[i].sdsr_next = 0;
1545                 ha->hw.sds[i].rxb_free = NULL;
1546                 ha->hw.sds[i].rx_free = 0;
1547         }
1548
1549         ret = qla_alloc_rcv_std(ha);
1550
1551         return (ret);
1552 }
1553
1554 static void
1555 qla_free_rcv_bufs(qla_host_t *ha)
1556 {
1557         int             i;
1558
1559         qla_free_rcv_std(ha);
1560
1561         if (ha->rx_tag != NULL) {
1562                 bus_dma_tag_destroy(ha->rx_tag);
1563                 ha->rx_tag = NULL;
1564         }
1565
1566         bzero((void *)ha->rx_ring, (sizeof(qla_rx_ring_t) * MAX_RDS_RINGS));
1567
1568         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1569                 ha->hw.sds[i].sdsr_next = 0;
1570                 ha->hw.sds[i].rxb_free = NULL;
1571                 ha->hw.sds[i].rx_free = 0;
1572         }
1573
1574         return;
1575 }
1576
1577 int
1578 ql_get_mbuf(qla_host_t *ha, qla_rx_buf_t *rxb, struct mbuf *nmp)
1579 {
1580         register struct mbuf *mp = nmp;
1581         struct ifnet            *ifp;
1582         int                     ret = 0;
1583         uint32_t                offset;
1584         bus_dma_segment_t       segs[1];
1585         int                     nsegs, mbuf_size;
1586
1587         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1588
1589         ifp = ha->ifp;
1590
1591         if (ha->hw.enable_9kb)
1592                 mbuf_size = MJUM9BYTES;
1593         else
1594                 mbuf_size = MCLBYTES;
1595
1596         if (mp == NULL) {
1597
1598                 if (ha->hw.enable_9kb)
1599                         mp = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, mbuf_size);
1600                 else
1601                         mp = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1602
1603                 if (mp == NULL) {
1604                         ha->err_m_getcl++;
1605                         ret = ENOBUFS;
1606                         device_printf(ha->pci_dev,
1607                                         "%s: m_getcl failed\n", __func__);
1608                         goto exit_ql_get_mbuf;
1609                 }
1610                 mp->m_len = mp->m_pkthdr.len = mbuf_size;
1611         } else {
1612                 mp->m_len = mp->m_pkthdr.len = mbuf_size;
1613                 mp->m_data = mp->m_ext.ext_buf;
1614                 mp->m_next = NULL;
1615         }
1616
1617         offset = (uint32_t)((unsigned long long)mp->m_data & 0x7ULL);
1618         if (offset) {
1619                 offset = 8 - offset;
1620                 m_adj(mp, offset);
1621         }
1622
1623         /*
1624          * Using memory from the mbuf cluster pool, invoke the bus_dma
1625          * machinery to arrange the memory mapping.
1626          */
1627         ret = bus_dmamap_load_mbuf_sg(ha->rx_tag, rxb->map,
1628                         mp, segs, &nsegs, BUS_DMA_NOWAIT);
1629         rxb->paddr = segs[0].ds_addr;
1630
1631         if (ret || !rxb->paddr || (nsegs != 1)) {
1632                 m_free(mp);
1633                 rxb->m_head = NULL;
1634                 device_printf(ha->pci_dev,
1635                         "%s: bus_dmamap_load failed[%d, 0x%016llx, %d]\n",
1636                         __func__, ret, (long long unsigned int)rxb->paddr,
1637                         nsegs);
1638                 ret = -1;
1639                 goto exit_ql_get_mbuf;
1640         }
1641         rxb->m_head = mp;
1642         bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_PREREAD);
1643
1644 exit_ql_get_mbuf:
1645         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit ret = 0x%08x\n", __func__, ret));
1646         return (ret);
1647 }
1648
1649 static void
1650 qla_tx_done(void *context, int pending)
1651 {
1652         qla_host_t *ha = context;
1653         struct ifnet   *ifp;
1654
1655         ifp = ha->ifp;
1656
1657         if (!ifp)
1658                 return;
1659
1660         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1661                 QL_DPRINT8(ha, (ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__));
1662                 return;
1663         }
1664         ql_hw_tx_done(ha);
1665
1666         qla_start(ha->ifp);
1667 }
1668
1669 static void
1670 qla_get_peer(qla_host_t *ha)
1671 {
1672         device_t *peers;
1673         int count, i, slot;
1674         int my_slot = pci_get_slot(ha->pci_dev);
1675
1676         if (device_get_children(device_get_parent(ha->pci_dev), &peers, &count))
1677                 return;
1678
1679         for (i = 0; i < count; i++) {
1680                 slot = pci_get_slot(peers[i]);
1681
1682                 if ((slot >= 0) && (slot == my_slot) &&
1683                         (pci_get_device(peers[i]) ==
1684                                 pci_get_device(ha->pci_dev))) {
1685                         if (ha->pci_dev != peers[i])
1686                                 ha->peer_dev = peers[i];
1687                 }
1688         }
1689 }
1690
1691 static void
1692 qla_send_msg_to_peer(qla_host_t *ha, uint32_t msg_to_peer)
1693 {
1694         qla_host_t *ha_peer;
1695
1696         if (ha->peer_dev) {
1697                 if ((ha_peer = device_get_softc(ha->peer_dev)) != NULL) {
1698
1699                         ha_peer->msg_from_peer = msg_to_peer;
1700                 }
1701         }
1702 }
1703
1704 static void
1705 qla_error_recovery(void *context, int pending)
1706 {
1707         qla_host_t *ha = context;
1708         uint32_t msecs_100 = 100;
1709         struct ifnet *ifp = ha->ifp;
1710
1711         (void)QLA_LOCK(ha, __func__, 0);
1712
1713         if (ha->flags.qla_interface_up) {
1714
1715         ha->hw.imd_compl = 1;
1716         qla_mdelay(__func__, 300);
1717
1718         ql_hw_stop_rcv(ha);
1719
1720         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
1721                 QLA_TX_LOCK(ha); QLA_TX_UNLOCK(ha);
1722         }
1723
1724         QLA_UNLOCK(ha, __func__);
1725
1726         if ((ha->pci_func & 0x1) == 0) {
1727
1728                 if (!ha->msg_from_peer) {
1729                         qla_send_msg_to_peer(ha, QL_PEER_MSG_RESET);
1730
1731                         while ((ha->msg_from_peer != QL_PEER_MSG_ACK) &&
1732                                 msecs_100--)
1733                                 qla_mdelay(__func__, 100);
1734                 }
1735
1736                 ha->msg_from_peer = 0;
1737
1738                 (void)QLA_LOCK(ha, __func__, 0);
1739                 ql_minidump(ha);
1740                 QLA_UNLOCK(ha, __func__);
1741
1742                 (void) ql_init_hw(ha);
1743
1744                 (void)QLA_LOCK(ha, __func__, 0);
1745                 if (ha->flags.qla_interface_up) {
1746                 qla_free_xmt_bufs(ha);
1747                 qla_free_rcv_bufs(ha);
1748                 }
1749                 QLA_UNLOCK(ha, __func__);
1750
1751                 qla_send_msg_to_peer(ha, QL_PEER_MSG_ACK);
1752
1753         } else {
1754                 if (ha->msg_from_peer == QL_PEER_MSG_RESET) {
1755
1756                         ha->msg_from_peer = 0;
1757
1758                         qla_send_msg_to_peer(ha, QL_PEER_MSG_ACK);
1759                 } else {
1760                         qla_send_msg_to_peer(ha, QL_PEER_MSG_RESET);
1761                 }
1762
1763                 while ((ha->msg_from_peer != QL_PEER_MSG_ACK)  && msecs_100--)
1764                         qla_mdelay(__func__, 100);
1765                 ha->msg_from_peer = 0;
1766
1767                 (void) ql_init_hw(ha);
1768
1769                 (void)QLA_LOCK(ha, __func__, 0);
1770                 if (ha->flags.qla_interface_up) {
1771                 qla_free_xmt_bufs(ha);
1772                 qla_free_rcv_bufs(ha);
1773         }
1774                 QLA_UNLOCK(ha, __func__);
1775         }
1776
1777         (void)QLA_LOCK(ha, __func__, 0);
1778
1779         if (ha->flags.qla_interface_up) {
1780         if (qla_alloc_xmt_bufs(ha) != 0) {
1781                 QLA_UNLOCK(ha, __func__);
1782                 return;
1783         }
1784         qla_confirm_9kb_enable(ha);
1785
1786         if (qla_alloc_rcv_bufs(ha) != 0) {
1787                 QLA_UNLOCK(ha, __func__);
1788                 return;
1789         }
1790
1791         ha->flags.stop_rcv = 0;
1792         if (ql_init_hw_if(ha) == 0) {
1793                 ifp = ha->ifp;
1794                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
1795                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1796                 ha->flags.qla_watchdog_pause = 0;
1797         }
1798         } else
1799                 ha->flags.qla_watchdog_pause = 0;
1800
1801         QLA_UNLOCK(ha, __func__);
1802 }
1803
1804 static void
1805 qla_async_event(void *context, int pending)
1806 {
1807         qla_host_t *ha = context;
1808
1809         (void)QLA_LOCK(ha, __func__, 0);
1810         qla_hw_async_event(ha);
1811         QLA_UNLOCK(ha, __func__);
1812 }
1813