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 {
 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                 }
 270
 271         } else {
 272                 ha->qla_watchdog_paused = 1;
 273         }
 274
 275         ha->watchdog_ticks = ha->watchdog_ticks++ % 1000;
 276         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 277                 qla_watchdog, ha);
 278 }
 279
 280 /*
 281  * Name:        qla_pci_attach
 282  * Function:    attaches the device to the operating system
 283  */
 284 static int
 285 qla_pci_attach(device_t dev)
 286 {
 287         qla_host_t *ha = NULL;
 288         uint32_t rsrc_len;
 289         int i;
 290         uint32_t num_rcvq = 0;
 291
 292         if ((ha = device_get_softc(dev)) == NULL) {
 293                 device_printf(dev, "cannot get softc\n");
 294                 return (ENOMEM);
 295         }
 296
 297         memset(ha, 0, sizeof (qla_host_t));
 298
 299         if (pci_get_device(dev) != PCI_PRODUCT_QLOGIC_ISP8030) {
 300                 device_printf(dev, "device is not ISP8030\n");
 301                 return (ENXIO);
 302         }
 303
 304         ha->pci_func = pci_get_function(dev);
 305
 306         ha->pci_dev = dev;
 307
 308         pci_enable_busmaster(dev);
 309
 310         ha->reg_rid = PCIR_BAR(0);
 311         ha->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ha->reg_rid,
 312                                 RF_ACTIVE);
 313
 314         if (ha->pci_reg == NULL) {
 315                 device_printf(dev, "unable to map any ports\n");
 316                 goto qla_pci_attach_err;
 317         }
 318
 319         rsrc_len = (uint32_t) bus_get_resource_count(dev, SYS_RES_MEMORY,
 320                                         ha->reg_rid);
 321
 322         mtx_init(&ha->hw_lock, "qla83xx_hw_lock", MTX_NETWORK_LOCK, MTX_DEF);
 323
 324         mtx_init(&ha->tx_lock, "qla83xx_tx_lock", MTX_NETWORK_LOCK, MTX_DEF);
 325
 326         qla_add_sysctls(ha);
 327         ql_hw_add_sysctls(ha);
 328
 329         ha->flags.lock_init = 1;
 330
 331         ha->reg_rid1 = PCIR_BAR(2);
 332         ha->pci_reg1 = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
 333                         &ha->reg_rid1, RF_ACTIVE);
 334
 335         ha->msix_count = pci_msix_count(dev);
 336
 337         if (ha->msix_count < (ha->hw.num_sds_rings + 1)) {
 338                 device_printf(dev, "%s: msix_count[%d] not enough\n", __func__,
 339                         ha->msix_count);
 340                 goto qla_pci_attach_err;
 341         }
 342
 343         QL_DPRINT2(ha, (dev, "%s: ha %p pci_func 0x%x rsrc_count 0x%08x"
 344                 " msix_count 0x%x pci_reg %p\n", __func__, ha,
 345                 ha->pci_func, rsrc_len, ha->msix_count, ha->pci_reg));
 346
 347         /* initialize hardware */
 348         if (ql_init_hw(ha)) {
 349                 device_printf(dev, "%s: ql_init_hw failed\n", __func__);
 350                 goto qla_pci_attach_err;
 351         }
 352
 353         device_printf(dev, "%s: firmware[%d.%d.%d.%d]\n", __func__,
 354                 ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 355                 ha->fw_ver_build);
 356         snprintf(ha->fw_ver_str, sizeof(ha->fw_ver_str), "%d.%d.%d.%d",
 357                         ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 358                         ha->fw_ver_build);
 359
 360         if (qla_get_nic_partition(ha, NULL, &num_rcvq)) {
 361                 device_printf(dev, "%s: qla_get_nic_partition failed\n",
 362                         __func__);
 363                 goto qla_pci_attach_err;
 364         }
 365         device_printf(dev, "%s: ha %p pci_func 0x%x rsrc_count 0x%08x"
 366                 " msix_count 0x%x pci_reg %p num_rcvq = %d\n", __func__, ha,
 367                 ha->pci_func, rsrc_len, ha->msix_count, ha->pci_reg, num_rcvq);
 368
 369
 370 #ifdef QL_ENABLE_ISCSI_TLV
 371         if ((ha->msix_count  < 64) || (num_rcvq != 32)) {
 372                 ha->hw.num_sds_rings = 15;
 373                 ha->hw.num_tx_rings = 32;
 374         }
 375 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
 376         ha->hw.num_rds_rings = ha->hw.num_sds_rings;
 377
 378         ha->msix_count = ha->hw.num_sds_rings + 1;
 379
 380         if (pci_alloc_msix(dev, &ha->msix_count)) {
 381                 device_printf(dev, "%s: pci_alloc_msi[%d] failed\n", __func__,
 382                         ha->msix_count);
 383                 ha->msix_count = 0;
 384                 goto qla_pci_attach_err;
 385         }
 386
 387         ha->mbx_irq_rid = 1;
 388         ha->mbx_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 389                                 &ha->mbx_irq_rid,
 390                                 (RF_ACTIVE | RF_SHAREABLE));
 391         if (ha->mbx_irq == NULL) {
 392                 device_printf(dev, "could not allocate mbx interrupt\n");
 393                 goto qla_pci_attach_err;
 394         }
 395         if (bus_setup_intr(dev, ha->mbx_irq, (INTR_TYPE_NET | INTR_MPSAFE),
 396                 NULL, ql_mbx_isr, ha, &ha->mbx_handle)) {
 397                 device_printf(dev, "could not setup mbx interrupt\n");
 398                 goto qla_pci_attach_err;
 399         }
 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         /* create the o.s ethernet interface */
 444         qla_init_ifnet(dev, ha);
 445
 446         ha->flags.qla_watchdog_active = 1;
 447         ha->flags.qla_watchdog_pause = 1;
 448
 449
 450         TASK_INIT(&ha->tx_task, 0, qla_tx_done, ha);
 451         ha->tx_tq = taskqueue_create_fast("qla_txq", M_NOWAIT,
 452                         taskqueue_thread_enqueue, &ha->tx_tq);
 453         taskqueue_start_threads(&ha->tx_tq, 1, PI_NET, "%s txq",
 454                 device_get_nameunit(ha->pci_dev));
 455
 456         callout_init(&ha->tx_callout, TRUE);
 457         ha->flags.qla_callout_init = 1;
 458
 459         /* create ioctl device interface */
 460         if (ql_make_cdev(ha)) {
 461                 device_printf(dev, "%s: ql_make_cdev failed\n", __func__);
 462                 goto qla_pci_attach_err;
 463         }
 464
 465         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 466                 qla_watchdog, ha);
 467
 468         TASK_INIT(&ha->err_task, 0, qla_error_recovery, ha);
 469         ha->err_tq = taskqueue_create_fast("qla_errq", M_NOWAIT,
 470                         taskqueue_thread_enqueue, &ha->err_tq);
 471         taskqueue_start_threads(&ha->err_tq, 1, PI_NET, "%s errq",
 472                 device_get_nameunit(ha->pci_dev));
 473
 474         TASK_INIT(&ha->async_event_task, 0, qla_async_event, ha);
 475         ha->async_event_tq = taskqueue_create_fast("qla_asyncq", M_NOWAIT,
 476                         taskqueue_thread_enqueue, &ha->async_event_tq);
 477         taskqueue_start_threads(&ha->async_event_tq, 1, PI_NET, "%s asyncq",
 478                 device_get_nameunit(ha->pci_dev));
 479
 480         QL_DPRINT2(ha, (dev, "%s: exit 0\n", __func__));
 481         return (0);
 482
 483 qla_pci_attach_err:
 484
 485         qla_release(ha);
 486
 487         QL_DPRINT2(ha, (dev, "%s: exit ENXIO\n", __func__));
 488         return (ENXIO);
 489 }
 490
 491 /*
 492  * Name:        qla_pci_detach
 493  * Function:    Unhooks the device from the operating system
 494  */
 495 static int
 496 qla_pci_detach(device_t dev)
 497 {
 498         qla_host_t *ha = NULL;
 499         struct ifnet *ifp;
 500
 501         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 502
 503         if ((ha = device_get_softc(dev)) == NULL) {
 504                 device_printf(dev, "cannot get softc\n");
 505                 return (ENOMEM);
 506         }
 507
 508         ifp = ha->ifp;
 509
 510         (void)QLA_LOCK(ha, __func__, 0);
 511         qla_stop(ha);
 512         QLA_UNLOCK(ha, __func__);
 513
 514         qla_release(ha);
 515
 516         QL_DPRINT2(ha, (dev, "%s: exit\n", __func__));
 517
 518         return (0);
 519 }
 520
 521 /*
 522  * SYSCTL Related Callbacks
 523  */
 524 static int
 525 qla_sysctl_get_stats(SYSCTL_HANDLER_ARGS)
 526 {
 527         int err, ret = 0;
 528         qla_host_t *ha;
 529
 530         err = sysctl_handle_int(oidp, &ret, 0, req);
 531
 532         if (err || !req->newptr)
 533                 return (err);
 534
 535         if (ret == 1) {
 536                 ha = (qla_host_t *)arg1;
 537                 ql_get_stats(ha);
 538         }
 539         return (err);
 540 }
 541 static int
 542 qla_sysctl_get_link_status(SYSCTL_HANDLER_ARGS)
 543 {
 544         int err, ret = 0;
 545         qla_host_t *ha;
 546
 547         err = sysctl_handle_int(oidp, &ret, 0, req);
 548
 549         if (err || !req->newptr)
 550                 return (err);
 551
 552         if (ret == 1) {
 553                 ha = (qla_host_t *)arg1;
 554                 ql_hw_link_status(ha);
 555         }
 556         return (err);
 557 }
 558
 559 /*
 560  * Name:        qla_release
 561  * Function:    Releases the resources allocated for the device
 562  */
 563 static void
 564 qla_release(qla_host_t *ha)
 565 {
 566         device_t dev;
 567         int i;
 568
 569         dev = ha->pci_dev;
 570
 571         if (ha->async_event_tq) {
 572                 taskqueue_drain(ha->async_event_tq, &ha->async_event_task);
 573                 taskqueue_free(ha->async_event_tq);
 574         }
 575
 576         if (ha->err_tq) {
 577                 taskqueue_drain(ha->err_tq, &ha->err_task);
 578                 taskqueue_free(ha->err_tq);
 579         }
 580
 581         if (ha->tx_tq) {
 582                 taskqueue_drain(ha->tx_tq, &ha->tx_task);
 583                 taskqueue_free(ha->tx_tq);
 584         }
 585
 586         ql_del_cdev(ha);
 587
 588         if (ha->flags.qla_watchdog_active) {
 589                 ha->flags.qla_watchdog_exit = 1;
 590
 591                 while (ha->qla_watchdog_exited == 0)
 592                         qla_mdelay(__func__, 1);
 593         }
 594
 595         if (ha->flags.qla_callout_init)
 596                 callout_stop(&ha->tx_callout);
 597
 598         if (ha->ifp != NULL)
 599                 ether_ifdetach(ha->ifp);
 600
 601         ql_free_dma(ha);
 602         qla_free_parent_dma_tag(ha);
 603
 604         if (ha->mbx_handle)
 605                 (void)bus_teardown_intr(dev, ha->mbx_irq, ha->mbx_handle);
 606
 607         if (ha->mbx_irq)
 608                 (void) bus_release_resource(dev, SYS_RES_IRQ, ha->mbx_irq_rid,
 609                                 ha->mbx_irq);
 610
 611         for (i = 0; i < ha->hw.num_sds_rings; i++) {
 612
 613                 if (ha->irq_vec[i].handle) {
 614                         (void)bus_teardown_intr(dev, ha->irq_vec[i].irq,
 615                                         ha->irq_vec[i].handle);
 616                 }
 617
 618                 if (ha->irq_vec[i].irq) {
 619                         (void)bus_release_resource(dev, SYS_RES_IRQ,
 620                                 ha->irq_vec[i].irq_rid,
 621                                 ha->irq_vec[i].irq);
 622                 }
 623         }
 624
 625         if (ha->msix_count)
 626                 pci_release_msi(dev);
 627
 628         if (ha->flags.lock_init) {
 629                 mtx_destroy(&ha->tx_lock);
 630                 mtx_destroy(&ha->hw_lock);
 631         }
 632
 633         if (ha->pci_reg)
 634                 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid,
 635                                 ha->pci_reg);
 636
 637         if (ha->pci_reg1)
 638                 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid1,
 639                                 ha->pci_reg1);
 640 }
 641
 642 /*
 643  * DMA Related Functions
 644  */
 645
 646 static void
 647 qla_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 648 {
 649         *((bus_addr_t *)arg) = 0;
 650
 651         if (error) {
 652                 printf("%s: bus_dmamap_load failed (%d)\n", __func__, error);
 653                 return;
 654         }
 655
 656         *((bus_addr_t *)arg) = segs[0].ds_addr;
 657
 658         return;
 659 }
 660
 661 int
 662 ql_alloc_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 663 {
 664         int             ret = 0;
 665         device_t        dev;
 666         bus_addr_t      b_addr;
 667
 668         dev = ha->pci_dev;
 669
 670         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 671
 672         ret = bus_dma_tag_create(
 673                         ha->parent_tag,/* parent */
 674                         dma_buf->alignment,
 675                         ((bus_size_t)(1ULL << 32)),/* boundary */
 676                         BUS_SPACE_MAXADDR,      /* lowaddr */
 677                         BUS_SPACE_MAXADDR,      /* highaddr */
 678                         NULL, NULL,             /* filter, filterarg */
 679                         dma_buf->size,          /* maxsize */
 680                         1,                      /* nsegments */
 681                         dma_buf->size,          /* maxsegsize */
 682                         0,                      /* flags */
 683                         NULL, NULL,             /* lockfunc, lockarg */
 684                         &dma_buf->dma_tag);
 685
 686         if (ret) {
 687                 device_printf(dev, "%s: could not create dma tag\n", __func__);
 688                 goto ql_alloc_dmabuf_exit;
 689         }
 690         ret = bus_dmamem_alloc(dma_buf->dma_tag,
 691                         (void **)&dma_buf->dma_b,
 692                         (BUS_DMA_ZERO | BUS_DMA_COHERENT | BUS_DMA_NOWAIT),
 693                         &dma_buf->dma_map);
 694         if (ret) {
 695                 bus_dma_tag_destroy(dma_buf->dma_tag);
 696                 device_printf(dev, "%s: bus_dmamem_alloc failed\n", __func__);
 697                 goto ql_alloc_dmabuf_exit;
 698         }
 699
 700         ret = bus_dmamap_load(dma_buf->dma_tag,
 701                         dma_buf->dma_map,
 702                         dma_buf->dma_b,
 703                         dma_buf->size,
 704                         qla_dmamap_callback,
 705                         &b_addr, BUS_DMA_NOWAIT);
 706
 707         if (ret || !b_addr) {
 708                 bus_dma_tag_destroy(dma_buf->dma_tag);
 709                 bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b,
 710                         dma_buf->dma_map);
 711                 ret = -1;
 712                 goto ql_alloc_dmabuf_exit;
 713         }
 714
 715         dma_buf->dma_addr = b_addr;
 716
 717 ql_alloc_dmabuf_exit:
 718         QL_DPRINT2(ha, (dev, "%s: exit ret 0x%08x tag %p map %p b %p sz 0x%x\n",
 719                 __func__, ret, (void *)dma_buf->dma_tag,
 720                 (void *)dma_buf->dma_map, (void *)dma_buf->dma_b,
 721                 dma_buf->size));
 722
 723         return ret;
 724 }
 725
 726 void
 727 ql_free_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 728 {
 729         bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b, dma_buf->dma_map);
 730         bus_dma_tag_destroy(dma_buf->dma_tag);
 731 }
 732
 733 static int
 734 qla_alloc_parent_dma_tag(qla_host_t *ha)
 735 {
 736         int             ret;
 737         device_t        dev;
 738
 739         dev = ha->pci_dev;
 740
 741         /*
 742          * Allocate parent DMA Tag
 743          */
 744         ret = bus_dma_tag_create(
 745                         bus_get_dma_tag(dev),   /* parent */
 746                         1,((bus_size_t)(1ULL << 32)),/* alignment, boundary */
 747                         BUS_SPACE_MAXADDR,      /* lowaddr */
 748                         BUS_SPACE_MAXADDR,      /* highaddr */
 749                         NULL, NULL,             /* filter, filterarg */
 750                         BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
 751                         0,                      /* nsegments */
 752                         BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
 753                         0,                      /* flags */
 754                         NULL, NULL,             /* lockfunc, lockarg */
 755                         &ha->parent_tag);
 756
 757         if (ret) {
 758                 device_printf(dev, "%s: could not create parent dma tag\n",
 759                         __func__);
 760                 return (-1);
 761         }
 762
 763         ha->flags.parent_tag = 1;
 764
 765         return (0);
 766 }
 767
 768 static void
 769 qla_free_parent_dma_tag(qla_host_t *ha)
 770 {
 771         if (ha->flags.parent_tag) {
 772                 bus_dma_tag_destroy(ha->parent_tag);
 773                 ha->flags.parent_tag = 0;
 774         }
 775 }
 776
 777 /*
 778  * Name: qla_init_ifnet
 779  * Function: Creates the Network Device Interface and Registers it with the O.S
 780  */
 781
 782 static void
 783 qla_init_ifnet(device_t dev, qla_host_t *ha)
 784 {
 785         struct ifnet *ifp;
 786
 787         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 788
 789         ifp = ha->ifp = if_alloc(IFT_ETHER);
 790
 791         if (ifp == NULL)
 792                 panic("%s: cannot if_alloc()\n", device_get_nameunit(dev));
 793
 794         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 795
 796 #if __FreeBSD_version >= 1000000
 797         if_initbaudrate(ifp, IF_Gbps(10));
 798         ifp->if_capabilities = IFCAP_LINKSTATE;
 799 #else
 800         ifp->if_mtu = ETHERMTU;
 801         ifp->if_baudrate = (1 * 1000 * 1000 *1000);
 802
 803 #endif /* #if __FreeBSD_version >= 1000000 */
 804
 805         ifp->if_init = qla_init;
 806         ifp->if_softc = ha;
 807         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 808         ifp->if_ioctl = qla_ioctl;
 809         ifp->if_start = qla_start;
 810
 811         IFQ_SET_MAXLEN(&ifp->if_snd, qla_get_ifq_snd_maxlen(ha));
 812         ifp->if_snd.ifq_drv_maxlen = qla_get_ifq_snd_maxlen(ha);
 813         IFQ_SET_READY(&ifp->if_snd);
 814
 815         ha->max_frame_size = ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 816
 817         ether_ifattach(ifp, qla_get_mac_addr(ha));
 818
 819         ifp->if_capabilities = IFCAP_HWCSUM |
 820                                 IFCAP_TSO4 |
 821                                 IFCAP_JUMBO_MTU;
 822
 823         ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
 824         ifp->if_capabilities |= IFCAP_VLAN_HWTSO;
 825
 826         ifp->if_capenable = ifp->if_capabilities;
 827
 828         ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
 829
 830         ifmedia_init(&ha->media, IFM_IMASK, qla_media_change, qla_media_status);
 831
 832         ifmedia_add(&ha->media, (IFM_ETHER | qla_get_optics(ha) | IFM_FDX), 0,
 833                 NULL);
 834         ifmedia_add(&ha->media, (IFM_ETHER | IFM_AUTO), 0, NULL);
 835
 836         ifmedia_set(&ha->media, (IFM_ETHER | IFM_AUTO));
 837
 838         QL_DPRINT2(ha, (dev, "%s: exit\n", __func__));
 839
 840         return;
 841 }
 842
 843 static void
 844 qla_init_locked(qla_host_t *ha)
 845 {
 846         struct ifnet *ifp = ha->ifp;
 847
 848         qla_stop(ha);
 849
 850         if (qla_alloc_xmt_bufs(ha) != 0)
 851                 return;
 852
 853         qla_confirm_9kb_enable(ha);
 854
 855         if (qla_alloc_rcv_bufs(ha) != 0)
 856                 return;
 857
 858         bcopy(IF_LLADDR(ha->ifp), ha->hw.mac_addr, ETHER_ADDR_LEN);
 859
 860         ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_TSO;
 861
 862         ha->flags.stop_rcv = 0;
 863         if (ql_init_hw_if(ha) == 0) {
 864                 ifp = ha->ifp;
 865                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
 866                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 867                 ha->flags.qla_watchdog_pause = 0;
 868                 ha->hw_vlan_tx_frames = 0;
 869                 ha->tx_tso_frames = 0;
 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         if (m_head->m_flags & M_FLOWID) {
1197 #ifdef QL_ENABLE_ISCSI_TLV
1198                 if (qla_iscsi_pdu(ha, m_head) == 0) {
1199                         iscsi_pdu = 1;
1200                         txr_idx = m_head->m_pkthdr.flowid &
1201                                         ((ha->hw.num_tx_rings >> 1) - 1);
1202                 } else {
1203                         txr_idx = m_head->m_pkthdr.flowid &
1204                                         (ha->hw.num_tx_rings - 1);
1205                 }
1206 #else
1207                 txr_idx = m_head->m_pkthdr.flowid & (ha->hw.num_tx_rings - 1);
1208 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
1209         }
1210
1211
1212         tx_idx = ha->hw.tx_cntxt[txr_idx].txr_next;
1213         map = ha->tx_ring[txr_idx].tx_buf[tx_idx].map;
1214
1215         ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head, segs, &nsegs,
1216                         BUS_DMA_NOWAIT);
1217
1218         if (ret == EFBIG) {
1219
1220                 struct mbuf *m;
1221
1222                 QL_DPRINT8(ha, (ha->pci_dev, "%s: EFBIG [%d]\n", __func__,
1223                         m_head->m_pkthdr.len));
1224
1225                 m = m_defrag(m_head, M_NOWAIT);
1226                 if (m == NULL) {
1227                         ha->err_tx_defrag++;
1228                         m_freem(m_head);
1229                         *m_headp = NULL;
1230                         device_printf(ha->pci_dev,
1231                                 "%s: m_defrag() = NULL [%d]\n",
1232                                 __func__, ret);
1233                         return (ENOBUFS);
1234                 }
1235                 m_head = m;
1236                 *m_headp = m_head;
1237
1238                 if ((ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head,
1239                                         segs, &nsegs, BUS_DMA_NOWAIT))) {
1240
1241                         ha->err_tx_dmamap_load++;
1242
1243                         device_printf(ha->pci_dev,
1244                                 "%s: bus_dmamap_load_mbuf_sg failed0[%d, %d]\n",
1245                                 __func__, ret, m_head->m_pkthdr.len);
1246
1247                         if (ret != ENOMEM) {
1248                                 m_freem(m_head);
1249                                 *m_headp = NULL;
1250                         }
1251                         return (ret);
1252                 }
1253
1254         } else if (ret) {
1255
1256                 ha->err_tx_dmamap_load++;
1257
1258                 device_printf(ha->pci_dev,
1259                         "%s: bus_dmamap_load_mbuf_sg failed1[%d, %d]\n",
1260                         __func__, ret, m_head->m_pkthdr.len);
1261
1262                 if (ret != ENOMEM) {
1263                         m_freem(m_head);
1264                         *m_headp = NULL;
1265                 }
1266                 return (ret);
1267         }
1268
1269         QL_ASSERT(ha, (nsegs != 0), ("qla_send: empty packet"));
1270
1271         bus_dmamap_sync(ha->tx_tag, map, BUS_DMASYNC_PREWRITE);
1272
1273         if (!(ret = ql_hw_send(ha, segs, nsegs, tx_idx, m_head, txr_idx,
1274                                 iscsi_pdu))) {
1275                 ha->tx_ring[txr_idx].count++;
1276                 ha->tx_ring[txr_idx].tx_buf[tx_idx].m_head = m_head;
1277         } else {
1278                 if (ret == EINVAL) {
1279                         if (m_head)
1280                                 m_freem(m_head);
1281                         *m_headp = NULL;
1282                 }
1283         }
1284
1285         QL_DPRINT8(ha, (ha->pci_dev, "%s: exit\n", __func__));
1286         return (ret);
1287 }
1288
1289 static void
1290 qla_stop(qla_host_t *ha)
1291 {
1292         struct ifnet *ifp = ha->ifp;
1293         device_t        dev;
1294
1295         dev = ha->pci_dev;
1296
1297         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
1298
1299         ha->flags.qla_watchdog_pause = 1;
1300
1301         while (!ha->qla_watchdog_paused)
1302                 qla_mdelay(__func__, 1);
1303
1304         ha->flags.stop_rcv = 1;
1305         ql_hw_stop_rcv(ha);
1306
1307         ql_del_hw_if(ha);
1308
1309         qla_free_xmt_bufs(ha);
1310         qla_free_rcv_bufs(ha);
1311
1312         return;
1313 }
1314
1315 /*
1316  * Buffer Management Functions for Transmit and Receive Rings
1317  */
1318 static int
1319 qla_alloc_xmt_bufs(qla_host_t *ha)
1320 {
1321         int ret = 0;
1322         uint32_t i, j;
1323         qla_tx_buf_t *txb;
1324
1325         if (bus_dma_tag_create(NULL,    /* parent */
1326                 1, 0,    /* alignment, bounds */
1327                 BUS_SPACE_MAXADDR,       /* lowaddr */
1328                 BUS_SPACE_MAXADDR,       /* highaddr */
1329                 NULL, NULL,      /* filter, filterarg */
1330                 QLA_MAX_TSO_FRAME_SIZE,     /* maxsize */
1331                 QLA_MAX_SEGMENTS,        /* nsegments */
1332                 PAGE_SIZE,        /* maxsegsize */
1333                 BUS_DMA_ALLOCNOW,        /* flags */
1334                 NULL,    /* lockfunc */
1335                 NULL,    /* lockfuncarg */
1336                 &ha->tx_tag)) {
1337                 device_printf(ha->pci_dev, "%s: tx_tag alloc failed\n",
1338                         __func__);
1339                 return (ENOMEM);
1340         }
1341
1342         for (i = 0; i < ha->hw.num_tx_rings; i++) {
1343                 bzero((void *)ha->tx_ring[i].tx_buf,
1344                         (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1345         }
1346
1347         for (j = 0; j < ha->hw.num_tx_rings; j++) {
1348                 for (i = 0; i < NUM_TX_DESCRIPTORS; i++) {
1349
1350                         txb = &ha->tx_ring[j].tx_buf[i];
1351
1352                         if ((ret = bus_dmamap_create(ha->tx_tag,
1353                                         BUS_DMA_NOWAIT, &txb->map))) {
1354
1355                                 ha->err_tx_dmamap_create++;
1356                                 device_printf(ha->pci_dev,
1357                                         "%s: bus_dmamap_create failed[%d]\n",
1358                                         __func__, ret);
1359
1360                                 qla_free_xmt_bufs(ha);
1361
1362                                 return (ret);
1363                         }
1364                 }
1365         }
1366
1367         return 0;
1368 }
1369
1370 /*
1371  * Release mbuf after it sent on the wire
1372  */
1373 static void
1374 qla_clear_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb)
1375 {
1376         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1377
1378         if (txb->m_head && txb->map) {
1379
1380                 bus_dmamap_unload(ha->tx_tag, txb->map);
1381
1382                 m_freem(txb->m_head);
1383                 txb->m_head = NULL;
1384         }
1385
1386         if (txb->map)
1387                 bus_dmamap_destroy(ha->tx_tag, txb->map);
1388
1389         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1390 }
1391
1392 static void
1393 qla_free_xmt_bufs(qla_host_t *ha)
1394 {
1395         int             i, j;
1396
1397         for (j = 0; j < ha->hw.num_tx_rings; j++) {
1398                 for (i = 0; i < NUM_TX_DESCRIPTORS; i++)
1399                         qla_clear_tx_buf(ha, &ha->tx_ring[j].tx_buf[i]);
1400         }
1401
1402         if (ha->tx_tag != NULL) {
1403                 bus_dma_tag_destroy(ha->tx_tag);
1404                 ha->tx_tag = NULL;
1405         }
1406
1407         for (i = 0; i < ha->hw.num_tx_rings; i++) {
1408                 bzero((void *)ha->tx_ring[i].tx_buf,
1409                         (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1410         }
1411         return;
1412 }
1413
1414
1415 static int
1416 qla_alloc_rcv_std(qla_host_t *ha)
1417 {
1418         int             i, j, k, r, ret = 0;
1419         qla_rx_buf_t    *rxb;
1420         qla_rx_ring_t   *rx_ring;
1421
1422         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1423
1424                 rx_ring = &ha->rx_ring[r];
1425
1426                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1427
1428                         rxb = &rx_ring->rx_buf[i];
1429
1430                         ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT,
1431                                         &rxb->map);
1432
1433                         if (ret) {
1434                                 device_printf(ha->pci_dev,
1435                                         "%s: dmamap[%d, %d] failed\n",
1436                                         __func__, r, i);
1437
1438                                 for (k = 0; k < r; k++) {
1439                                         for (j = 0; j < NUM_RX_DESCRIPTORS;
1440                                                 j++) {
1441                                                 rxb = &ha->rx_ring[k].rx_buf[j];
1442                                                 bus_dmamap_destroy(ha->rx_tag,
1443                                                         rxb->map);
1444                                         }
1445                                 }
1446
1447                                 for (j = 0; j < i; j++) {
1448                                         bus_dmamap_destroy(ha->rx_tag,
1449                                                 rx_ring->rx_buf[j].map);
1450                                 }
1451                                 goto qla_alloc_rcv_std_err;
1452                         }
1453                 }
1454         }
1455
1456         qla_init_hw_rcv_descriptors(ha);
1457
1458
1459         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1460
1461                 rx_ring = &ha->rx_ring[r];
1462
1463                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1464                         rxb = &rx_ring->rx_buf[i];
1465                         rxb->handle = i;
1466                         if (!(ret = ql_get_mbuf(ha, rxb, NULL))) {
1467                                 /*
1468                                  * set the physical address in the
1469                                  * corresponding descriptor entry in the
1470                                  * receive ring/queue for the hba
1471                                  */
1472                                 qla_set_hw_rcv_desc(ha, r, i, rxb->handle,
1473                                         rxb->paddr,
1474                                         (rxb->m_head)->m_pkthdr.len);
1475                         } else {
1476                                 device_printf(ha->pci_dev,
1477                                         "%s: ql_get_mbuf [%d, %d] failed\n",
1478                                         __func__, r, i);
1479                                 bus_dmamap_destroy(ha->rx_tag, rxb->map);
1480                                 goto qla_alloc_rcv_std_err;
1481                         }
1482                 }
1483         }
1484         return 0;
1485
1486 qla_alloc_rcv_std_err:
1487         return (-1);
1488 }
1489
1490 static void
1491 qla_free_rcv_std(qla_host_t *ha)
1492 {
1493         int             i, r;
1494         qla_rx_buf_t    *rxb;
1495
1496         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1497                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1498                         rxb = &ha->rx_ring[r].rx_buf[i];
1499                         if (rxb->m_head != NULL) {
1500                                 bus_dmamap_unload(ha->rx_tag, rxb->map);
1501                                 bus_dmamap_destroy(ha->rx_tag, rxb->map);
1502                                 m_freem(rxb->m_head);
1503                                 rxb->m_head = NULL;
1504                         }
1505                 }
1506         }
1507         return;
1508 }
1509
1510 static int
1511 qla_alloc_rcv_bufs(qla_host_t *ha)
1512 {
1513         int             i, ret = 0;
1514
1515         if (bus_dma_tag_create(NULL,    /* parent */
1516                         1, 0,    /* alignment, bounds */
1517                         BUS_SPACE_MAXADDR,       /* lowaddr */
1518                         BUS_SPACE_MAXADDR,       /* highaddr */
1519                         NULL, NULL,      /* filter, filterarg */
1520                         MJUM9BYTES,     /* maxsize */
1521                         1,        /* nsegments */
1522                         MJUM9BYTES,        /* maxsegsize */
1523                         BUS_DMA_ALLOCNOW,        /* flags */
1524                         NULL,    /* lockfunc */
1525                         NULL,    /* lockfuncarg */
1526                         &ha->rx_tag)) {
1527
1528                 device_printf(ha->pci_dev, "%s: rx_tag alloc failed\n",
1529                         __func__);
1530
1531                 return (ENOMEM);
1532         }
1533
1534         bzero((void *)ha->rx_ring, (sizeof(qla_rx_ring_t) * MAX_RDS_RINGS));
1535
1536         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1537                 ha->hw.sds[i].sdsr_next = 0;
1538                 ha->hw.sds[i].rxb_free = NULL;
1539                 ha->hw.sds[i].rx_free = 0;
1540         }
1541
1542         ret = qla_alloc_rcv_std(ha);
1543
1544         return (ret);
1545 }
1546
1547 static void
1548 qla_free_rcv_bufs(qla_host_t *ha)
1549 {
1550         int             i;
1551
1552         qla_free_rcv_std(ha);
1553
1554         if (ha->rx_tag != NULL) {
1555                 bus_dma_tag_destroy(ha->rx_tag);
1556                 ha->rx_tag = NULL;
1557         }
1558
1559         bzero((void *)ha->rx_ring, (sizeof(qla_rx_ring_t) * MAX_RDS_RINGS));
1560
1561         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1562                 ha->hw.sds[i].sdsr_next = 0;
1563                 ha->hw.sds[i].rxb_free = NULL;
1564                 ha->hw.sds[i].rx_free = 0;
1565         }
1566
1567         return;
1568 }
1569
1570 int
1571 ql_get_mbuf(qla_host_t *ha, qla_rx_buf_t *rxb, struct mbuf *nmp)
1572 {
1573         register struct mbuf *mp = nmp;
1574         struct ifnet            *ifp;
1575         int                     ret = 0;
1576         uint32_t                offset;
1577         bus_dma_segment_t       segs[1];
1578         int                     nsegs, mbuf_size;
1579
1580         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1581
1582         ifp = ha->ifp;
1583
1584         if (ha->hw.enable_9kb)
1585                 mbuf_size = MJUM9BYTES;
1586         else
1587                 mbuf_size = MCLBYTES;
1588
1589         if (mp == NULL) {
1590
1591                 if (ha->hw.enable_9kb)
1592                         mp = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, mbuf_size);
1593                 else
1594                         mp = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1595
1596                 if (mp == NULL) {
1597                         ha->err_m_getcl++;
1598                         ret = ENOBUFS;
1599                         device_printf(ha->pci_dev,
1600                                         "%s: m_getcl failed\n", __func__);
1601                         goto exit_ql_get_mbuf;
1602                 }
1603                 mp->m_len = mp->m_pkthdr.len = mbuf_size;
1604         } else {
1605                 mp->m_len = mp->m_pkthdr.len = mbuf_size;
1606                 mp->m_data = mp->m_ext.ext_buf;
1607                 mp->m_next = NULL;
1608         }
1609
1610         offset = (uint32_t)((unsigned long long)mp->m_data & 0x7ULL);
1611         if (offset) {
1612                 offset = 8 - offset;
1613                 m_adj(mp, offset);
1614         }
1615
1616         /*
1617          * Using memory from the mbuf cluster pool, invoke the bus_dma
1618          * machinery to arrange the memory mapping.
1619          */
1620         ret = bus_dmamap_load_mbuf_sg(ha->rx_tag, rxb->map,
1621                         mp, segs, &nsegs, BUS_DMA_NOWAIT);
1622         rxb->paddr = segs[0].ds_addr;
1623
1624         if (ret || !rxb->paddr || (nsegs != 1)) {
1625                 m_free(mp);
1626                 rxb->m_head = NULL;
1627                 device_printf(ha->pci_dev,
1628                         "%s: bus_dmamap_load failed[%d, 0x%016llx, %d]\n",
1629                         __func__, ret, (long long unsigned int)rxb->paddr,
1630                         nsegs);
1631                 ret = -1;
1632                 goto exit_ql_get_mbuf;
1633         }
1634         rxb->m_head = mp;
1635         bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_PREREAD);
1636
1637 exit_ql_get_mbuf:
1638         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit ret = 0x%08x\n", __func__, ret));
1639         return (ret);
1640 }
1641
1642 static void
1643 qla_tx_done(void *context, int pending)
1644 {
1645         qla_host_t *ha = context;
1646         struct ifnet   *ifp;
1647
1648         ifp = ha->ifp;
1649
1650         if (!ifp)
1651                 return;
1652
1653         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1654                 QL_DPRINT8(ha, (ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__));
1655                 return;
1656         }
1657         ql_hw_tx_done(ha);
1658
1659         qla_start(ha->ifp);
1660 }
1661
1662 static void
1663 qla_get_peer(qla_host_t *ha)
1664 {
1665         device_t *peers;
1666         int count, i, slot;
1667         int my_slot = pci_get_slot(ha->pci_dev);
1668
1669         if (device_get_children(device_get_parent(ha->pci_dev), &peers, &count))
1670                 return;
1671
1672         for (i = 0; i < count; i++) {
1673                 slot = pci_get_slot(peers[i]);
1674
1675                 if ((slot >= 0) && (slot == my_slot) &&
1676                         (pci_get_device(peers[i]) ==
1677                                 pci_get_device(ha->pci_dev))) {
1678                         if (ha->pci_dev != peers[i])
1679                                 ha->peer_dev = peers[i];
1680                 }
1681         }
1682 }
1683
1684 static void
1685 qla_send_msg_to_peer(qla_host_t *ha, uint32_t msg_to_peer)
1686 {
1687         qla_host_t *ha_peer;
1688
1689         if (ha->peer_dev) {
1690                 if ((ha_peer = device_get_softc(ha->peer_dev)) != NULL) {
1691
1692                         ha_peer->msg_from_peer = msg_to_peer;
1693                 }
1694         }
1695 }
1696
1697 static void
1698 qla_error_recovery(void *context, int pending)
1699 {
1700         qla_host_t *ha = context;
1701         uint32_t msecs_100 = 100;
1702         struct ifnet *ifp = ha->ifp;
1703
1704         (void)QLA_LOCK(ha, __func__, 0);
1705
1706         ha->hw.imd_compl = 1;
1707         qla_mdelay(__func__, 300);
1708
1709         ha->flags.stop_rcv = 1;
1710
1711         ql_hw_stop_rcv(ha);
1712
1713         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
1714
1715         QLA_UNLOCK(ha, __func__);
1716
1717         if ((ha->pci_func & 0x1) == 0) {
1718
1719                 if (!ha->msg_from_peer) {
1720                         qla_send_msg_to_peer(ha, QL_PEER_MSG_RESET);
1721
1722                         while ((ha->msg_from_peer != QL_PEER_MSG_ACK) &&
1723                                 msecs_100--)
1724                                 qla_mdelay(__func__, 100);
1725                 }
1726
1727                 ha->msg_from_peer = 0;
1728
1729                 ql_minidump(ha);
1730
1731                 (void) ql_init_hw(ha);
1732                 qla_free_xmt_bufs(ha);
1733                 qla_free_rcv_bufs(ha);
1734
1735                 qla_send_msg_to_peer(ha, QL_PEER_MSG_ACK);
1736
1737         } else {
1738                 if (ha->msg_from_peer == QL_PEER_MSG_RESET) {
1739
1740                         ha->msg_from_peer = 0;
1741
1742                         qla_send_msg_to_peer(ha, QL_PEER_MSG_ACK);
1743                 } else {
1744                         qla_send_msg_to_peer(ha, QL_PEER_MSG_RESET);
1745                 }
1746
1747                 while ((ha->msg_from_peer != QL_PEER_MSG_ACK)  && msecs_100--)
1748                         qla_mdelay(__func__, 100);
1749                 ha->msg_from_peer = 0;
1750
1751                 (void) ql_init_hw(ha);
1752                 qla_free_xmt_bufs(ha);
1753                 qla_free_rcv_bufs(ha);
1754         }
1755         (void)QLA_LOCK(ha, __func__, 0);
1756
1757         if (qla_alloc_xmt_bufs(ha) != 0) {
1758                 QLA_UNLOCK(ha, __func__);
1759                 return;
1760         }
1761         qla_confirm_9kb_enable(ha);
1762
1763         if (qla_alloc_rcv_bufs(ha) != 0) {
1764                 QLA_UNLOCK(ha, __func__);
1765                 return;
1766         }
1767
1768         ha->flags.stop_rcv = 0;
1769         if (ql_init_hw_if(ha) == 0) {
1770                 ifp = ha->ifp;
1771                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
1772                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1773                 ha->flags.qla_watchdog_pause = 0;
1774         }
1775
1776         QLA_UNLOCK(ha, __func__);
1777 }
1778
1779 static void
1780 qla_async_event(void *context, int pending)
1781 {
1782         qla_host_t *ha = context;
1783
1784         (void)QLA_LOCK(ha, __func__, 0);
1785         qla_hw_async_event(ha);
1786         QLA_UNLOCK(ha, __func__);
1787 }
1788