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 void qla_get_peer(qla_host_t *ha);
  80 static void qla_error_recovery(void *context, int pending);
  81 static void qla_async_event(void *context, int pending);
  82 static int qla_send(qla_host_t *ha, struct mbuf **m_headp, uint32_t txr_idx,
  83                 uint32_t iscsi_pdu);
  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
  97 static int qla_transmit(struct ifnet *ifp, struct mbuf  *mp);
  98 static void qla_qflush(struct ifnet *ifp);
  99 static int qla_alloc_tx_br(qla_host_t *ha, qla_tx_fp_t *tx_fp);
 100 static void qla_free_tx_br(qla_host_t *ha, qla_tx_fp_t *tx_fp);
 101 static int qla_create_fp_taskqueues(qla_host_t *ha);
 102 static void qla_destroy_fp_taskqueues(qla_host_t *ha);
 103 static void qla_drain_fp_taskqueues(qla_host_t *ha);
 104
 105 static device_method_t qla_pci_methods[] = {
 106         /* Device interface */
 107         DEVMETHOD(device_probe, qla_pci_probe),
 108         DEVMETHOD(device_attach, qla_pci_attach),
 109         DEVMETHOD(device_detach, qla_pci_detach),
 110         { 0, 0 }
 111 };
 112
 113 static driver_t qla_pci_driver = {
 114         "ql", qla_pci_methods, sizeof (qla_host_t),
 115 };
 116
 117 static devclass_t qla83xx_devclass;
 118
 119 DRIVER_MODULE(qla83xx, pci, qla_pci_driver, qla83xx_devclass, 0, 0);
 120
 121 MODULE_DEPEND(qla83xx, pci, 1, 1, 1);
 122 MODULE_DEPEND(qla83xx, ether, 1, 1, 1);
 123
 124 MALLOC_DEFINE(M_QLA83XXBUF, "qla83xxbuf", "Buffers for qla83xx driver");
 125
 126 #define QL_STD_REPLENISH_THRES          0
 127 #define QL_JUMBO_REPLENISH_THRES        32
 128
 129
 130 static char dev_str[64];
 131 static char ver_str[64];
 132
 133 /*
 134  * Name:        qla_pci_probe
 135  * Function:    Validate the PCI device to be a QLA80XX device
 136  */
 137 static int
 138 qla_pci_probe(device_t dev)
 139 {
 140         switch ((pci_get_device(dev) << 16) | (pci_get_vendor(dev))) {
 141         case PCI_QLOGIC_ISP8030:
 142                 snprintf(dev_str, sizeof(dev_str), "%s v%d.%d.%d",
 143                         "Qlogic ISP 83xx PCI CNA Adapter-Ethernet Function",
 144                         QLA_VERSION_MAJOR, QLA_VERSION_MINOR,
 145                         QLA_VERSION_BUILD);
 146                 snprintf(ver_str, sizeof(ver_str), "v%d.%d.%d",
 147                         QLA_VERSION_MAJOR, QLA_VERSION_MINOR,
 148                         QLA_VERSION_BUILD);
 149                 device_set_desc(dev, dev_str);
 150                 break;
 151         default:
 152                 return (ENXIO);
 153         }
 154
 155         if (bootverbose)
 156                 printf("%s: %s\n ", __func__, dev_str);
 157
 158         return (BUS_PROBE_DEFAULT);
 159 }
 160
 161 static void
 162 qla_add_sysctls(qla_host_t *ha)
 163 {
 164         device_t dev = ha->pci_dev;
 165
 166         SYSCTL_ADD_STRING(device_get_sysctl_ctx(dev),
 167                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 168                 OID_AUTO, "version", CTLFLAG_RD,
 169                 ver_str, 0, "Driver Version");
 170
 171         SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
 172                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 173                 OID_AUTO, "stats", CTLTYPE_INT | CTLFLAG_RW,
 174                 (void *)ha, 0,
 175                 qla_sysctl_get_stats, "I", "Statistics");
 176
 177         SYSCTL_ADD_STRING(device_get_sysctl_ctx(dev),
 178                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 179                 OID_AUTO, "fw_version", CTLFLAG_RD,
 180                 ha->fw_ver_str, 0, "firmware version");
 181
 182         SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
 183                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 184                 OID_AUTO, "link_status", CTLTYPE_INT | CTLFLAG_RW,
 185                 (void *)ha, 0,
 186                 qla_sysctl_get_link_status, "I", "Link Status");
 187
 188         ha->dbg_level = 0;
 189         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 190                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 191                 OID_AUTO, "debug", CTLFLAG_RW,
 192                 &ha->dbg_level, ha->dbg_level, "Debug Level");
 193
 194         ha->std_replenish = QL_STD_REPLENISH_THRES;
 195         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 196                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 197                 OID_AUTO, "std_replenish", CTLFLAG_RW,
 198                 &ha->std_replenish, ha->std_replenish,
 199                 "Threshold for Replenishing Standard Frames");
 200
 201         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 202                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 203                 OID_AUTO, "ipv4_lro",
 204                 CTLFLAG_RD, &ha->ipv4_lro,
 205                 "number of ipv4 lro completions");
 206
 207         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 208                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 209                 OID_AUTO, "ipv6_lro",
 210                 CTLFLAG_RD, &ha->ipv6_lro,
 211                 "number of ipv6 lro completions");
 212
 213         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 214                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 215                 OID_AUTO, "tx_tso_frames",
 216                 CTLFLAG_RD, &ha->tx_tso_frames,
 217                 "number of Tx TSO Frames");
 218
 219         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 220                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 221                 OID_AUTO, "hw_vlan_tx_frames",
 222                 CTLFLAG_RD, &ha->hw_vlan_tx_frames,
 223                 "number of Tx VLAN Frames");
 224
 225         return;
 226 }
 227
 228 static void
 229 qla_watchdog(void *arg)
 230 {
 231         qla_host_t *ha = arg;
 232         qla_hw_t *hw;
 233         struct ifnet *ifp;
 234         uint32_t i;
 235
 236         hw = &ha->hw;
 237         ifp = ha->ifp;
 238
 239         if (ha->flags.qla_watchdog_exit) {
 240                 ha->qla_watchdog_exited = 1;
 241                 return;
 242         }
 243         ha->qla_watchdog_exited = 0;
 244
 245         if (!ha->flags.qla_watchdog_pause) {
 246                 if (ql_hw_check_health(ha) || ha->qla_initiate_recovery ||
 247                         (ha->msg_from_peer == QL_PEER_MSG_RESET)) {
 248                         ha->qla_watchdog_paused = 1;
 249                         ha->flags.qla_watchdog_pause = 1;
 250                         ha->qla_initiate_recovery = 0;
 251                         ha->err_inject = 0;
 252                         device_printf(ha->pci_dev,
 253                                 "%s: taskqueue_enqueue(err_task) \n", __func__);
 254                         taskqueue_enqueue(ha->err_tq, &ha->err_task);
 255                 } else if (ha->flags.qla_interface_up) {
 256
 257                         if (ha->async_event) {
 258                                 ha->async_event = 0;
 259                                 taskqueue_enqueue(ha->async_event_tq,
 260                                         &ha->async_event_task);
 261                         }
 262
 263                         for (i = 0; i < ha->hw.num_sds_rings; i++) {
 264                                 qla_tx_fp_t *fp = &ha->tx_fp[i];
 265
 266                                 if (fp->fp_taskqueue != NULL)
 267                                         taskqueue_enqueue(fp->fp_taskqueue,
 268                                                 &fp->fp_task);
 269                         }
 270
 271                         ha->qla_watchdog_paused = 0;
 272                 } else {
 273                         ha->qla_watchdog_paused = 0;
 274                 }
 275         } else {
 276                 ha->qla_watchdog_paused = 1;
 277         }
 278
 279         ha->watchdog_ticks = ha->watchdog_ticks++ % 500;
 280         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 281                 qla_watchdog, ha);
 282 }
 283
 284 /*
 285  * Name:        qla_pci_attach
 286  * Function:    attaches the device to the operating system
 287  */
 288 static int
 289 qla_pci_attach(device_t dev)
 290 {
 291         qla_host_t *ha = NULL;
 292         uint32_t rsrc_len;
 293         int i;
 294         uint32_t num_rcvq = 0;
 295
 296         if ((ha = device_get_softc(dev)) == NULL) {
 297                 device_printf(dev, "cannot get softc\n");
 298                 return (ENOMEM);
 299         }
 300
 301         memset(ha, 0, sizeof (qla_host_t));
 302
 303         if (pci_get_device(dev) != PCI_PRODUCT_QLOGIC_ISP8030) {
 304                 device_printf(dev, "device is not ISP8030\n");
 305                 return (ENXIO);
 306         }
 307
 308         ha->pci_func = pci_get_function(dev) & 0x1;
 309
 310         ha->pci_dev = dev;
 311
 312         pci_enable_busmaster(dev);
 313
 314         ha->reg_rid = PCIR_BAR(0);
 315         ha->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ha->reg_rid,
 316                                 RF_ACTIVE);
 317
 318         if (ha->pci_reg == NULL) {
 319                 device_printf(dev, "unable to map any ports\n");
 320                 goto qla_pci_attach_err;
 321         }
 322
 323         rsrc_len = (uint32_t) bus_get_resource_count(dev, SYS_RES_MEMORY,
 324                                         ha->reg_rid);
 325
 326         mtx_init(&ha->hw_lock, "qla83xx_hw_lock", MTX_NETWORK_LOCK, MTX_DEF);
 327
 328         qla_add_sysctls(ha);
 329         ql_hw_add_sysctls(ha);
 330
 331         ha->flags.lock_init = 1;
 332
 333         ha->reg_rid1 = PCIR_BAR(2);
 334         ha->pci_reg1 = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
 335                         &ha->reg_rid1, RF_ACTIVE);
 336
 337         ha->msix_count = pci_msix_count(dev);
 338
 339         if (ha->msix_count < (ha->hw.num_sds_rings + 1)) {
 340                 device_printf(dev, "%s: msix_count[%d] not enough\n", __func__,
 341                         ha->msix_count);
 342                 goto qla_pci_attach_err;
 343         }
 344
 345         QL_DPRINT2(ha, (dev, "%s: ha %p pci_func 0x%x rsrc_count 0x%08x"
 346                 " msix_count 0x%x pci_reg %p pci_reg1 %p\n", __func__, ha,
 347                 ha->pci_func, rsrc_len, ha->msix_count, ha->pci_reg,
 348                 ha->pci_reg1));
 349
 350         /* initialize hardware */
 351         if (ql_init_hw(ha)) {
 352                 device_printf(dev, "%s: ql_init_hw failed\n", __func__);
 353                 goto qla_pci_attach_err;
 354         }
 355
 356         device_printf(dev, "%s: firmware[%d.%d.%d.%d]\n", __func__,
 357                 ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 358                 ha->fw_ver_build);
 359         snprintf(ha->fw_ver_str, sizeof(ha->fw_ver_str), "%d.%d.%d.%d",
 360                         ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 361                         ha->fw_ver_build);
 362
 363         if (qla_get_nic_partition(ha, NULL, &num_rcvq)) {
 364                 device_printf(dev, "%s: qla_get_nic_partition failed\n",
 365                         __func__);
 366                 goto qla_pci_attach_err;
 367         }
 368         device_printf(dev, "%s: ha %p pci_func 0x%x rsrc_count 0x%08x"
 369                 " msix_count 0x%x pci_reg %p pci_reg1 %p num_rcvq = %d\n",
 370                 __func__, ha, ha->pci_func, rsrc_len, ha->msix_count,
 371                 ha->pci_reg, ha->pci_reg1, num_rcvq);
 372
 373
 374 #ifdef QL_ENABLE_ISCSI_TLV
 375         if ((ha->msix_count  < 64) || (num_rcvq != 32)) {
 376                 ha->hw.num_sds_rings = 15;
 377                 ha->hw.num_tx_rings = ha->hw.num_sds_rings * 2;
 378         }
 379 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
 380         ha->hw.num_rds_rings = ha->hw.num_sds_rings;
 381
 382         ha->msix_count = ha->hw.num_sds_rings + 1;
 383
 384         if (pci_alloc_msix(dev, &ha->msix_count)) {
 385                 device_printf(dev, "%s: pci_alloc_msi[%d] failed\n", __func__,
 386                         ha->msix_count);
 387                 ha->msix_count = 0;
 388                 goto qla_pci_attach_err;
 389         }
 390
 391         ha->mbx_irq_rid = 1;
 392         ha->mbx_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 393                                 &ha->mbx_irq_rid,
 394                                 (RF_ACTIVE | RF_SHAREABLE));
 395         if (ha->mbx_irq == NULL) {
 396                 device_printf(dev, "could not allocate mbx interrupt\n");
 397                 goto qla_pci_attach_err;
 398         }
 399         if (bus_setup_intr(dev, ha->mbx_irq, (INTR_TYPE_NET | INTR_MPSAFE),
 400                 NULL, ql_mbx_isr, ha, &ha->mbx_handle)) {
 401                 device_printf(dev, "could not setup mbx interrupt\n");
 402                 goto qla_pci_attach_err;
 403         }
 404
 405         for (i = 0; i < ha->hw.num_sds_rings; i++) {
 406                 ha->irq_vec[i].sds_idx = i;
 407                 ha->irq_vec[i].ha = ha;
 408                 ha->irq_vec[i].irq_rid = 2 + i;
 409
 410                 ha->irq_vec[i].irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 411                                 &ha->irq_vec[i].irq_rid,
 412                                 (RF_ACTIVE | RF_SHAREABLE));
 413
 414                 if (ha->irq_vec[i].irq == NULL) {
 415                         device_printf(dev, "could not allocate interrupt\n");
 416                         goto qla_pci_attach_err;
 417                 }
 418                 if (bus_setup_intr(dev, ha->irq_vec[i].irq,
 419                         (INTR_TYPE_NET | INTR_MPSAFE),
 420                         NULL, ql_isr, &ha->irq_vec[i],
 421                         &ha->irq_vec[i].handle)) {
 422                         device_printf(dev, "could not setup interrupt\n");
 423                         goto qla_pci_attach_err;
 424                 }
 425
 426                 ha->tx_fp[i].ha = ha;
 427                 ha->tx_fp[i].txr_idx = i;
 428
 429                 if (qla_alloc_tx_br(ha, &ha->tx_fp[i])) {
 430                         device_printf(dev, "%s: could not allocate tx_br[%d]\n",
 431                                 __func__, i);
 432                         goto qla_pci_attach_err;
 433                 }
 434         }
 435
 436         if (qla_create_fp_taskqueues(ha) != 0)
 437                 goto qla_pci_attach_err;
 438
 439         printf("%s: mp__ncpus %d sds %d rds %d msi-x %d\n", __func__, mp_ncpus,
 440                 ha->hw.num_sds_rings, ha->hw.num_rds_rings, ha->msix_count);
 441
 442         ql_read_mac_addr(ha);
 443
 444         /* allocate parent dma tag */
 445         if (qla_alloc_parent_dma_tag(ha)) {
 446                 device_printf(dev, "%s: qla_alloc_parent_dma_tag failed\n",
 447                         __func__);
 448                 goto qla_pci_attach_err;
 449         }
 450
 451         /* alloc all dma buffers */
 452         if (ql_alloc_dma(ha)) {
 453                 device_printf(dev, "%s: ql_alloc_dma failed\n", __func__);
 454                 goto qla_pci_attach_err;
 455         }
 456         qla_get_peer(ha);
 457
 458         if (ql_minidump_init(ha) != 0) {
 459                 device_printf(dev, "%s: ql_minidump_init failed\n", __func__);
 460                 goto qla_pci_attach_err;
 461         }
 462         /* create the o.s ethernet interface */
 463         qla_init_ifnet(dev, ha);
 464
 465         ha->flags.qla_watchdog_active = 1;
 466         ha->flags.qla_watchdog_pause = 0;
 467
 468         callout_init(&ha->tx_callout, TRUE);
 469         ha->flags.qla_callout_init = 1;
 470
 471         /* create ioctl device interface */
 472         if (ql_make_cdev(ha)) {
 473                 device_printf(dev, "%s: ql_make_cdev failed\n", __func__);
 474                 goto qla_pci_attach_err;
 475         }
 476
 477         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 478                 qla_watchdog, ha);
 479
 480         TASK_INIT(&ha->err_task, 0, qla_error_recovery, ha);
 481         ha->err_tq = taskqueue_create("qla_errq", M_NOWAIT,
 482                         taskqueue_thread_enqueue, &ha->err_tq);
 483         taskqueue_start_threads(&ha->err_tq, 1, PI_NET, "%s errq",
 484                 device_get_nameunit(ha->pci_dev));
 485
 486         TASK_INIT(&ha->async_event_task, 0, qla_async_event, ha);
 487         ha->async_event_tq = taskqueue_create("qla_asyncq", M_NOWAIT,
 488                         taskqueue_thread_enqueue, &ha->async_event_tq);
 489         taskqueue_start_threads(&ha->async_event_tq, 1, PI_NET, "%s asyncq",
 490                 device_get_nameunit(ha->pci_dev));
 491
 492         QL_DPRINT2(ha, (dev, "%s: exit 0\n", __func__));
 493         return (0);
 494
 495 qla_pci_attach_err:
 496
 497         qla_release(ha);
 498
 499         QL_DPRINT2(ha, (dev, "%s: exit ENXIO\n", __func__));
 500         return (ENXIO);
 501 }
 502
 503 /*
 504  * Name:        qla_pci_detach
 505  * Function:    Unhooks the device from the operating system
 506  */
 507 static int
 508 qla_pci_detach(device_t dev)
 509 {
 510         qla_host_t *ha = NULL;
 511         struct ifnet *ifp;
 512
 513         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 514
 515         if ((ha = device_get_softc(dev)) == NULL) {
 516                 device_printf(dev, "cannot get softc\n");
 517                 return (ENOMEM);
 518         }
 519
 520         ifp = ha->ifp;
 521
 522         QLA_LOCK(ha);
 523         qla_stop(ha);
 524         QLA_UNLOCK(ha);
 525
 526         qla_release(ha);
 527
 528         QL_DPRINT2(ha, (dev, "%s: exit\n", __func__));
 529
 530         return (0);
 531 }
 532
 533 /*
 534  * SYSCTL Related Callbacks
 535  */
 536 static int
 537 qla_sysctl_get_stats(SYSCTL_HANDLER_ARGS)
 538 {
 539         int err, ret = 0;
 540         qla_host_t *ha;
 541
 542         err = sysctl_handle_int(oidp, &ret, 0, req);
 543
 544         if (err || !req->newptr)
 545                 return (err);
 546
 547         if (ret == 1) {
 548                 ha = (qla_host_t *)arg1;
 549                 ql_get_stats(ha);
 550         }
 551         return (err);
 552 }
 553 static int
 554 qla_sysctl_get_link_status(SYSCTL_HANDLER_ARGS)
 555 {
 556         int err, ret = 0;
 557         qla_host_t *ha;
 558
 559         err = sysctl_handle_int(oidp, &ret, 0, req);
 560
 561         if (err || !req->newptr)
 562                 return (err);
 563
 564         if (ret == 1) {
 565                 ha = (qla_host_t *)arg1;
 566                 ql_hw_link_status(ha);
 567         }
 568         return (err);
 569 }
 570
 571 /*
 572  * Name:        qla_release
 573  * Function:    Releases the resources allocated for the device
 574  */
 575 static void
 576 qla_release(qla_host_t *ha)
 577 {
 578         device_t dev;
 579         int i;
 580
 581         dev = ha->pci_dev;
 582
 583         if (ha->async_event_tq) {
 584                 taskqueue_drain(ha->async_event_tq, &ha->async_event_task);
 585                 taskqueue_free(ha->async_event_tq);
 586         }
 587
 588         if (ha->err_tq) {
 589                 taskqueue_drain(ha->err_tq, &ha->err_task);
 590                 taskqueue_free(ha->err_tq);
 591         }
 592
 593         ql_del_cdev(ha);
 594
 595         if (ha->flags.qla_watchdog_active) {
 596                 ha->flags.qla_watchdog_exit = 1;
 597
 598                 while (ha->qla_watchdog_exited == 0)
 599                         qla_mdelay(__func__, 1);
 600         }
 601
 602         if (ha->flags.qla_callout_init)
 603                 callout_stop(&ha->tx_callout);
 604
 605         if (ha->ifp != NULL)
 606                 ether_ifdetach(ha->ifp);
 607
 608         ql_free_dma(ha);
 609         qla_free_parent_dma_tag(ha);
 610
 611         if (ha->mbx_handle)
 612                 (void)bus_teardown_intr(dev, ha->mbx_irq, ha->mbx_handle);
 613
 614         if (ha->mbx_irq)
 615                 (void) bus_release_resource(dev, SYS_RES_IRQ, ha->mbx_irq_rid,
 616                                 ha->mbx_irq);
 617
 618         for (i = 0; i < ha->hw.num_sds_rings; i++) {
 619
 620                 if (ha->irq_vec[i].handle) {
 621                         (void)bus_teardown_intr(dev, ha->irq_vec[i].irq,
 622                                         ha->irq_vec[i].handle);
 623                 }
 624
 625                 if (ha->irq_vec[i].irq) {
 626                         (void)bus_release_resource(dev, SYS_RES_IRQ,
 627                                 ha->irq_vec[i].irq_rid,
 628                                 ha->irq_vec[i].irq);
 629                 }
 630
 631                 qla_free_tx_br(ha, &ha->tx_fp[i]);
 632         }
 633         qla_destroy_fp_taskqueues(ha);
 634
 635         if (ha->msix_count)
 636                 pci_release_msi(dev);
 637
 638         if (ha->flags.lock_init) {
 639                 mtx_destroy(&ha->hw_lock);
 640         }
 641
 642         if (ha->pci_reg)
 643                 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid,
 644                                 ha->pci_reg);
 645
 646         if (ha->pci_reg1)
 647                 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid1,
 648                                 ha->pci_reg1);
 649 }
 650
 651 /*
 652  * DMA Related Functions
 653  */
 654
 655 static void
 656 qla_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 657 {
 658         *((bus_addr_t *)arg) = 0;
 659
 660         if (error) {
 661                 printf("%s: bus_dmamap_load failed (%d)\n", __func__, error);
 662                 return;
 663         }
 664
 665         *((bus_addr_t *)arg) = segs[0].ds_addr;
 666
 667         return;
 668 }
 669
 670 int
 671 ql_alloc_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 672 {
 673         int             ret = 0;
 674         device_t        dev;
 675         bus_addr_t      b_addr;
 676
 677         dev = ha->pci_dev;
 678
 679         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 680
 681         ret = bus_dma_tag_create(
 682                         ha->parent_tag,/* parent */
 683                         dma_buf->alignment,
 684                         ((bus_size_t)(1ULL << 32)),/* boundary */
 685                         BUS_SPACE_MAXADDR,      /* lowaddr */
 686                         BUS_SPACE_MAXADDR,      /* highaddr */
 687                         NULL, NULL,             /* filter, filterarg */
 688                         dma_buf->size,          /* maxsize */
 689                         1,                      /* nsegments */
 690                         dma_buf->size,          /* maxsegsize */
 691                         0,                      /* flags */
 692                         NULL, NULL,             /* lockfunc, lockarg */
 693                         &dma_buf->dma_tag);
 694
 695         if (ret) {
 696                 device_printf(dev, "%s: could not create dma tag\n", __func__);
 697                 goto ql_alloc_dmabuf_exit;
 698         }
 699         ret = bus_dmamem_alloc(dma_buf->dma_tag,
 700                         (void **)&dma_buf->dma_b,
 701                         (BUS_DMA_ZERO | BUS_DMA_COHERENT | BUS_DMA_NOWAIT),
 702                         &dma_buf->dma_map);
 703         if (ret) {
 704                 bus_dma_tag_destroy(dma_buf->dma_tag);
 705                 device_printf(dev, "%s: bus_dmamem_alloc failed\n", __func__);
 706                 goto ql_alloc_dmabuf_exit;
 707         }
 708
 709         ret = bus_dmamap_load(dma_buf->dma_tag,
 710                         dma_buf->dma_map,
 711                         dma_buf->dma_b,
 712                         dma_buf->size,
 713                         qla_dmamap_callback,
 714                         &b_addr, BUS_DMA_NOWAIT);
 715
 716         if (ret || !b_addr) {
 717                 bus_dma_tag_destroy(dma_buf->dma_tag);
 718                 bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b,
 719                         dma_buf->dma_map);
 720                 ret = -1;
 721                 goto ql_alloc_dmabuf_exit;
 722         }
 723
 724         dma_buf->dma_addr = b_addr;
 725
 726 ql_alloc_dmabuf_exit:
 727         QL_DPRINT2(ha, (dev, "%s: exit ret 0x%08x tag %p map %p b %p sz 0x%x\n",
 728                 __func__, ret, (void *)dma_buf->dma_tag,
 729                 (void *)dma_buf->dma_map, (void *)dma_buf->dma_b,
 730                 dma_buf->size));
 731
 732         return ret;
 733 }
 734
 735 void
 736 ql_free_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 737 {
 738         bus_dmamap_unload(dma_buf->dma_tag, dma_buf->dma_map);
 739         bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b, dma_buf->dma_map);
 740         bus_dma_tag_destroy(dma_buf->dma_tag);
 741 }
 742
 743 static int
 744 qla_alloc_parent_dma_tag(qla_host_t *ha)
 745 {
 746         int             ret;
 747         device_t        dev;
 748
 749         dev = ha->pci_dev;
 750
 751         /*
 752          * Allocate parent DMA Tag
 753          */
 754         ret = bus_dma_tag_create(
 755                         bus_get_dma_tag(dev),   /* parent */
 756                         1,((bus_size_t)(1ULL << 32)),/* alignment, boundary */
 757                         BUS_SPACE_MAXADDR,      /* lowaddr */
 758                         BUS_SPACE_MAXADDR,      /* highaddr */
 759                         NULL, NULL,             /* filter, filterarg */
 760                         BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
 761                         0,                      /* nsegments */
 762                         BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
 763                         0,                      /* flags */
 764                         NULL, NULL,             /* lockfunc, lockarg */
 765                         &ha->parent_tag);
 766
 767         if (ret) {
 768                 device_printf(dev, "%s: could not create parent dma tag\n",
 769                         __func__);
 770                 return (-1);
 771         }
 772
 773         ha->flags.parent_tag = 1;
 774
 775         return (0);
 776 }
 777
 778 static void
 779 qla_free_parent_dma_tag(qla_host_t *ha)
 780 {
 781         if (ha->flags.parent_tag) {
 782                 bus_dma_tag_destroy(ha->parent_tag);
 783                 ha->flags.parent_tag = 0;
 784         }
 785 }
 786
 787 /*
 788  * Name: qla_init_ifnet
 789  * Function: Creates the Network Device Interface and Registers it with the O.S
 790  */
 791
 792 static void
 793 qla_init_ifnet(device_t dev, qla_host_t *ha)
 794 {
 795         struct ifnet *ifp;
 796
 797         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 798
 799         ifp = ha->ifp = if_alloc(IFT_ETHER);
 800
 801         if (ifp == NULL)
 802                 panic("%s: cannot if_alloc()\n", device_get_nameunit(dev));
 803
 804         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 805
 806         ifp->if_baudrate = IF_Gbps(10);
 807         ifp->if_capabilities = IFCAP_LINKSTATE;
 808         ifp->if_mtu = ETHERMTU;
 809
 810         ifp->if_init = qla_init;
 811         ifp->if_softc = ha;
 812         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 813         ifp->if_ioctl = qla_ioctl;
 814
 815         ifp->if_transmit = qla_transmit;
 816         ifp->if_qflush = qla_qflush;
 817
 818         IFQ_SET_MAXLEN(&ifp->if_snd, qla_get_ifq_snd_maxlen(ha));
 819         ifp->if_snd.ifq_drv_maxlen = qla_get_ifq_snd_maxlen(ha);
 820         IFQ_SET_READY(&ifp->if_snd);
 821
 822         ha->max_frame_size = ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 823
 824         ether_ifattach(ifp, qla_get_mac_addr(ha));
 825
 826         ifp->if_capabilities |= IFCAP_HWCSUM |
 827                                 IFCAP_TSO4 |
 828                                 IFCAP_JUMBO_MTU |
 829                                 IFCAP_VLAN_HWTAGGING |
 830                                 IFCAP_VLAN_MTU |
 831                                 IFCAP_VLAN_HWTSO |
 832                                 IFCAP_LRO;
 833
 834         ifp->if_capenable = ifp->if_capabilities;
 835
 836         ifp->if_hdrlen = sizeof(struct ether_vlan_header);
 837
 838         ifmedia_init(&ha->media, IFM_IMASK, qla_media_change, qla_media_status);
 839
 840         ifmedia_add(&ha->media, (IFM_ETHER | qla_get_optics(ha) | IFM_FDX), 0,
 841                 NULL);
 842         ifmedia_add(&ha->media, (IFM_ETHER | IFM_AUTO), 0, NULL);
 843
 844         ifmedia_set(&ha->media, (IFM_ETHER | IFM_AUTO));
 845
 846         QL_DPRINT2(ha, (dev, "%s: exit\n", __func__));
 847
 848         return;
 849 }
 850
 851 static void
 852 qla_init_locked(qla_host_t *ha)
 853 {
 854         struct ifnet *ifp = ha->ifp;
 855
 856         qla_stop(ha);
 857
 858         if (qla_alloc_xmt_bufs(ha) != 0)
 859                 return;
 860
 861         qla_confirm_9kb_enable(ha);
 862
 863         if (qla_alloc_rcv_bufs(ha) != 0)
 864                 return;
 865
 866         bcopy(IF_LLADDR(ha->ifp), ha->hw.mac_addr, ETHER_ADDR_LEN);
 867
 868         ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_TSO;
 869
 870         ha->flags.stop_rcv = 0;
 871         if (ql_init_hw_if(ha) == 0) {
 872                 ifp = ha->ifp;
 873                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
 874                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 875                 ha->flags.qla_watchdog_pause = 0;
 876                 ha->hw_vlan_tx_frames = 0;
 877                 ha->tx_tso_frames = 0;
 878                 ha->flags.qla_interface_up = 1;
 879         }
 880
 881         return;
 882 }
 883
 884 static void
 885 qla_init(void *arg)
 886 {
 887         qla_host_t *ha;
 888
 889         ha = (qla_host_t *)arg;
 890
 891         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
 892
 893         QLA_LOCK(ha);
 894         qla_init_locked(ha);
 895         QLA_UNLOCK(ha);
 896
 897         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
 898 }
 899
 900 static int
 901 qla_set_multi(qla_host_t *ha, uint32_t add_multi)
 902 {
 903         uint8_t mta[Q8_MAX_NUM_MULTICAST_ADDRS * Q8_MAC_ADDR_LEN];
 904         struct ifmultiaddr *ifma;
 905         int mcnt = 0;
 906         struct ifnet *ifp = ha->ifp;
 907         int ret = 0;
 908
 909         if_maddr_rlock(ifp);
 910
 911         TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 912
 913                 if (ifma->ifma_addr->sa_family != AF_LINK)
 914                         continue;
 915
 916                 if (mcnt == Q8_MAX_NUM_MULTICAST_ADDRS)
 917                         break;
 918
 919                 bcopy(LLADDR((struct sockaddr_dl *) ifma->ifma_addr),
 920                         &mta[mcnt * Q8_MAC_ADDR_LEN], Q8_MAC_ADDR_LEN);
 921
 922                 mcnt++;
 923         }
 924
 925         if_maddr_runlock(ifp);
 926
 927         QLA_LOCK(ha);
 928         if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 929                 ret = ql_hw_set_multi(ha, mta, mcnt, add_multi);
 930         }
 931         QLA_UNLOCK(ha);
 932
 933         return (ret);
 934 }
 935
 936 static int
 937 qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 938 {
 939         int ret = 0;
 940         struct ifreq *ifr = (struct ifreq *)data;
 941         struct ifaddr *ifa = (struct ifaddr *)data;
 942         qla_host_t *ha;
 943
 944         ha = (qla_host_t *)ifp->if_softc;
 945
 946         switch (cmd) {
 947         case SIOCSIFADDR:
 948                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFADDR (0x%lx)\n",
 949                         __func__, cmd));
 950
 951                 if (ifa->ifa_addr->sa_family == AF_INET) {
 952                         ifp->if_flags |= IFF_UP;
 953                         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 954                                 QLA_LOCK(ha);
 955                                 qla_init_locked(ha);
 956                                 QLA_UNLOCK(ha);
 957                         }
 958                         QL_DPRINT4(ha, (ha->pci_dev,
 959                                 "%s: SIOCSIFADDR (0x%lx) ipv4 [0x%08x]\n",
 960                                 __func__, cmd,
 961                                 ntohl(IA_SIN(ifa)->sin_addr.s_addr)));
 962
 963                         arp_ifinit(ifp, ifa);
 964                 } else {
 965                         ether_ioctl(ifp, cmd, data);
 966                 }
 967                 break;
 968
 969         case SIOCSIFMTU:
 970                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFMTU (0x%lx)\n",
 971                         __func__, cmd));
 972
 973                 if (ifr->ifr_mtu > QLA_MAX_MTU) {
 974                         ret = EINVAL;
 975                 } else {
 976                         QLA_LOCK(ha);
 977
 978                         ifp->if_mtu = ifr->ifr_mtu;
 979                         ha->max_frame_size =
 980                                 ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 981
 982                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 983                                 qla_init_locked(ha);
 984                         }
 985
 986                         if (ifp->if_mtu > ETHERMTU)
 987                                 ha->std_replenish = QL_JUMBO_REPLENISH_THRES;
 988                         else
 989                                 ha->std_replenish = QL_STD_REPLENISH_THRES;
 990
 991
 992                         QLA_UNLOCK(ha);
 993
 994                         if (ret)
 995                                 ret = EINVAL;
 996                 }
 997
 998                 break;
 999
1000         case SIOCSIFFLAGS:
1001                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFFLAGS (0x%lx)\n",
1002                         __func__, cmd));
1003
1004                 QLA_LOCK(ha);
1005
1006                 if (ifp->if_flags & IFF_UP) {
1007                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1008                                 if ((ifp->if_flags ^ ha->if_flags) &
1009                                         IFF_PROMISC) {
1010                                         ret = ql_set_promisc(ha);
1011                                 } else if ((ifp->if_flags ^ ha->if_flags) &
1012                                         IFF_ALLMULTI) {
1013                                         ret = ql_set_allmulti(ha);
1014                                 }
1015                         } else {
1016                                 ha->max_frame_size = ifp->if_mtu +
1017                                         ETHER_HDR_LEN + ETHER_CRC_LEN;
1018                                 qla_init_locked(ha);
1019                         }
1020                 } else {
1021                         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1022                                 qla_stop(ha);
1023                         ha->if_flags = ifp->if_flags;
1024                 }
1025
1026                 QLA_UNLOCK(ha);
1027                 break;
1028
1029         case SIOCADDMULTI:
1030                 QL_DPRINT4(ha, (ha->pci_dev,
1031                         "%s: %s (0x%lx)\n", __func__, "SIOCADDMULTI", cmd));
1032
1033                 if (qla_set_multi(ha, 1))
1034                         ret = EINVAL;
1035                 break;
1036
1037         case SIOCDELMULTI:
1038                 QL_DPRINT4(ha, (ha->pci_dev,
1039                         "%s: %s (0x%lx)\n", __func__, "SIOCDELMULTI", cmd));
1040
1041                 if (qla_set_multi(ha, 0))
1042                         ret = EINVAL;
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                 if (mask & IFCAP_LRO)
1069                         ifp->if_capenable ^= IFCAP_LRO;
1070
1071                 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
1072                         qla_init(ha);
1073
1074                 VLAN_CAPABILITIES(ifp);
1075                 break;
1076         }
1077
1078         default:
1079                 QL_DPRINT4(ha, (ha->pci_dev, "%s: default (0x%lx)\n",
1080                         __func__, cmd));
1081                 ret = ether_ioctl(ifp, cmd, data);
1082                 break;
1083         }
1084
1085         return (ret);
1086 }
1087
1088 static int
1089 qla_media_change(struct ifnet *ifp)
1090 {
1091         qla_host_t *ha;
1092         struct ifmedia *ifm;
1093         int ret = 0;
1094
1095         ha = (qla_host_t *)ifp->if_softc;
1096
1097         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1098
1099         ifm = &ha->media;
1100
1101         if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
1102                 ret = EINVAL;
1103
1104         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1105
1106         return (ret);
1107 }
1108
1109 static void
1110 qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr)
1111 {
1112         qla_host_t *ha;
1113
1114         ha = (qla_host_t *)ifp->if_softc;
1115
1116         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1117
1118         ifmr->ifm_status = IFM_AVALID;
1119         ifmr->ifm_active = IFM_ETHER;
1120
1121         ql_update_link_state(ha);
1122         if (ha->hw.link_up) {
1123                 ifmr->ifm_status |= IFM_ACTIVE;
1124                 ifmr->ifm_active |= (IFM_FDX | qla_get_optics(ha));
1125         }
1126
1127         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit (%s)\n", __func__,\
1128                 (ha->hw.link_up ? "link_up" : "link_down")));
1129
1130         return;
1131 }
1132
1133
1134 static int
1135 qla_send(qla_host_t *ha, struct mbuf **m_headp, uint32_t txr_idx,
1136         uint32_t iscsi_pdu)
1137 {
1138         bus_dma_segment_t       segs[QLA_MAX_SEGMENTS];
1139         bus_dmamap_t            map;
1140         int                     nsegs;
1141         int                     ret = -1;
1142         uint32_t                tx_idx;
1143         struct mbuf             *m_head = *m_headp;
1144
1145         QL_DPRINT8(ha, (ha->pci_dev, "%s: enter\n", __func__));
1146
1147         tx_idx = ha->hw.tx_cntxt[txr_idx].txr_next;
1148         map = ha->tx_ring[txr_idx].tx_buf[tx_idx].map;
1149
1150         ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head, segs, &nsegs,
1151                         BUS_DMA_NOWAIT);
1152
1153         if (ret == EFBIG) {
1154
1155                 struct mbuf *m;
1156
1157                 QL_DPRINT8(ha, (ha->pci_dev, "%s: EFBIG [%d]\n", __func__,
1158                         m_head->m_pkthdr.len));
1159
1160                 m = m_defrag(m_head, M_NOWAIT);
1161                 if (m == NULL) {
1162                         ha->err_tx_defrag++;
1163                         m_freem(m_head);
1164                         *m_headp = NULL;
1165                         device_printf(ha->pci_dev,
1166                                 "%s: m_defrag() = NULL [%d]\n",
1167                                 __func__, ret);
1168                         return (ENOBUFS);
1169                 }
1170                 m_head = m;
1171                 *m_headp = m_head;
1172
1173                 if ((ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head,
1174                                         segs, &nsegs, BUS_DMA_NOWAIT))) {
1175
1176                         ha->err_tx_dmamap_load++;
1177
1178                         device_printf(ha->pci_dev,
1179                                 "%s: bus_dmamap_load_mbuf_sg failed0[%d, %d]\n",
1180                                 __func__, ret, m_head->m_pkthdr.len);
1181
1182                         if (ret != ENOMEM) {
1183                                 m_freem(m_head);
1184                                 *m_headp = NULL;
1185                         }
1186                         return (ret);
1187                 }
1188
1189         } else if (ret) {
1190
1191                 ha->err_tx_dmamap_load++;
1192
1193                 device_printf(ha->pci_dev,
1194                         "%s: bus_dmamap_load_mbuf_sg failed1[%d, %d]\n",
1195                         __func__, ret, m_head->m_pkthdr.len);
1196
1197                 if (ret != ENOMEM) {
1198                         m_freem(m_head);
1199                         *m_headp = NULL;
1200                 }
1201                 return (ret);
1202         }
1203
1204         QL_ASSERT(ha, (nsegs != 0), ("qla_send: empty packet"));
1205
1206         bus_dmamap_sync(ha->tx_tag, map, BUS_DMASYNC_PREWRITE);
1207
1208         if (!(ret = ql_hw_send(ha, segs, nsegs, tx_idx, m_head, txr_idx,
1209                                 iscsi_pdu))) {
1210                 ha->tx_ring[txr_idx].count++;
1211                 ha->tx_ring[txr_idx].tx_buf[tx_idx].m_head = m_head;
1212         } else {
1213                 if (ret == EINVAL) {
1214                         if (m_head)
1215                                 m_freem(m_head);
1216                         *m_headp = NULL;
1217                 }
1218         }
1219
1220         QL_DPRINT8(ha, (ha->pci_dev, "%s: exit\n", __func__));
1221         return (ret);
1222 }
1223
1224 static int
1225 qla_alloc_tx_br(qla_host_t *ha, qla_tx_fp_t *fp)
1226 {
1227         snprintf(fp->tx_mtx_name, sizeof(fp->tx_mtx_name),
1228                 "qla%d_fp%d_tx_mq_lock", ha->pci_func, fp->txr_idx);
1229
1230         mtx_init(&fp->tx_mtx, fp->tx_mtx_name, NULL, MTX_DEF);
1231
1232         fp->tx_br = buf_ring_alloc(NUM_TX_DESCRIPTORS, M_DEVBUF,
1233                                    M_NOWAIT, &fp->tx_mtx);
1234         if (fp->tx_br == NULL) {
1235             QL_DPRINT1(ha, (ha->pci_dev, "buf_ring_alloc failed for "
1236                 " fp[%d, %d]\n", ha->pci_func, fp->txr_idx));
1237             return (-ENOMEM);
1238         }
1239         return 0;
1240 }
1241
1242 static void
1243 qla_free_tx_br(qla_host_t *ha, qla_tx_fp_t *fp)
1244 {
1245         struct mbuf *mp;
1246         struct ifnet *ifp = ha->ifp;
1247
1248         if (mtx_initialized(&fp->tx_mtx)) {
1249
1250                 if (fp->tx_br != NULL) {
1251
1252                         mtx_lock(&fp->tx_mtx);
1253
1254                         while ((mp = drbr_dequeue(ifp, fp->tx_br)) != NULL) {
1255                                 m_freem(mp);
1256                         }
1257
1258                         mtx_unlock(&fp->tx_mtx);
1259
1260                         buf_ring_free(fp->tx_br, M_DEVBUF);
1261                         fp->tx_br = NULL;
1262                 }
1263                 mtx_destroy(&fp->tx_mtx);
1264         }
1265         return;
1266 }
1267
1268 static void
1269 qla_fp_taskqueue(void *context, int pending)
1270 {
1271         qla_tx_fp_t *fp;
1272         qla_host_t *ha;
1273         struct ifnet *ifp;
1274         struct mbuf  *mp;
1275         int ret;
1276         uint32_t txr_idx;
1277         uint32_t iscsi_pdu = 0;
1278         uint32_t rx_pkts_left;
1279
1280         fp = context;
1281
1282         if (fp == NULL)
1283                 return;
1284
1285         ha = (qla_host_t *)fp->ha;
1286
1287         ifp = ha->ifp;
1288
1289         txr_idx = fp->txr_idx;
1290
1291         mtx_lock(&fp->tx_mtx);
1292
1293         if (((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
1294                 IFF_DRV_RUNNING) || (!ha->hw.link_up)) {
1295                 mtx_unlock(&fp->tx_mtx);
1296                 goto qla_fp_taskqueue_exit;
1297         }
1298
1299         rx_pkts_left = ql_rcv_isr(ha, fp->txr_idx, 64);
1300
1301 #ifdef QL_ENABLE_ISCSI_TLV
1302         ql_hw_tx_done_locked(ha, fp->txr_idx);
1303         ql_hw_tx_done_locked(ha, (fp->txr_idx + (ha->hw.num_tx_rings >> 1)));
1304         txr_idx = txr_idx + (ha->hw.num_tx_rings >> 1);
1305 #else
1306         ql_hw_tx_done_locked(ha, fp->txr_idx);
1307 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
1308
1309         mp = drbr_peek(ifp, fp->tx_br);
1310
1311         while (mp != NULL) {
1312
1313                 if (M_HASHTYPE_GET(mp) != M_HASHTYPE_NONE) {
1314 #ifdef QL_ENABLE_ISCSI_TLV
1315                         if (ql_iscsi_pdu(ha, mp) == 0) {
1316                                 iscsi_pdu = 1;
1317                         }
1318 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
1319                 }
1320
1321                 ret = qla_send(ha, &mp, txr_idx, iscsi_pdu);
1322
1323                 if (ret) {
1324                         if (mp != NULL)
1325                                 drbr_putback(ifp, fp->tx_br, mp);
1326                         else {
1327                                 drbr_advance(ifp, fp->tx_br);
1328                         }
1329
1330                         mtx_unlock(&fp->tx_mtx);
1331
1332                         goto qla_fp_taskqueue_exit0;
1333                 } else {
1334                         drbr_advance(ifp, fp->tx_br);
1335                 }
1336
1337                 mp = drbr_peek(ifp, fp->tx_br);
1338         }
1339
1340         mtx_unlock(&fp->tx_mtx);
1341
1342 qla_fp_taskqueue_exit0:
1343
1344         if (rx_pkts_left || ((mp != NULL) && ret)) {
1345                 taskqueue_enqueue(fp->fp_taskqueue, &fp->fp_task);
1346         } else {
1347                 if (!ha->flags.stop_rcv) {
1348                         QL_ENABLE_INTERRUPTS(ha, fp->txr_idx);
1349                 }
1350         }
1351
1352 qla_fp_taskqueue_exit:
1353
1354         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit ret = %d\n", __func__, ret));
1355         return;
1356 }
1357
1358 static int
1359 qla_create_fp_taskqueues(qla_host_t *ha)
1360 {
1361         int     i;
1362         uint8_t tq_name[32];
1363
1364         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1365
1366                 qla_tx_fp_t *fp = &ha->tx_fp[i];
1367
1368                 bzero(tq_name, sizeof (tq_name));
1369                 snprintf(tq_name, sizeof (tq_name), "ql_fp_tq_%d", i);
1370
1371                 TASK_INIT(&fp->fp_task, 0, qla_fp_taskqueue, fp);
1372
1373                 fp->fp_taskqueue = taskqueue_create_fast(tq_name, M_NOWAIT,
1374                                         taskqueue_thread_enqueue,
1375                                         &fp->fp_taskqueue);
1376
1377                 if (fp->fp_taskqueue == NULL)
1378                         return (-1);
1379
1380                 taskqueue_start_threads(&fp->fp_taskqueue, 1, PI_NET, "%s",
1381                         tq_name);
1382
1383                 QL_DPRINT1(ha, (ha->pci_dev, "%s: %p\n", __func__,
1384                         fp->fp_taskqueue));
1385         }
1386
1387         return (0);
1388 }
1389
1390 static void
1391 qla_destroy_fp_taskqueues(qla_host_t *ha)
1392 {
1393         int     i;
1394
1395         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1396
1397                 qla_tx_fp_t *fp = &ha->tx_fp[i];
1398
1399                 if (fp->fp_taskqueue != NULL) {
1400                         taskqueue_drain(fp->fp_taskqueue, &fp->fp_task);
1401                         taskqueue_free(fp->fp_taskqueue);
1402                         fp->fp_taskqueue = NULL;
1403                 }
1404         }
1405         return;
1406 }
1407
1408 static void
1409 qla_drain_fp_taskqueues(qla_host_t *ha)
1410 {
1411         int     i;
1412
1413         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1414                 qla_tx_fp_t *fp = &ha->tx_fp[i];
1415
1416                 if (fp->fp_taskqueue != NULL) {
1417                         taskqueue_drain(fp->fp_taskqueue, &fp->fp_task);
1418                 }
1419         }
1420         return;
1421 }
1422
1423 static int
1424 qla_transmit(struct ifnet *ifp, struct mbuf  *mp)
1425 {
1426         qla_host_t *ha = (qla_host_t *)ifp->if_softc;
1427         qla_tx_fp_t *fp;
1428         int rss_id = 0;
1429         int ret = 0;
1430
1431         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1432
1433 #if __FreeBSD_version >= 1100000
1434         if (M_HASHTYPE_GET(mp) != M_HASHTYPE_NONE)
1435 #else
1436         if (mp->m_flags & M_FLOWID)
1437 #endif
1438                 rss_id = (mp->m_pkthdr.flowid & Q8_RSS_IND_TBL_MAX_IDX) %
1439                                         ha->hw.num_sds_rings;
1440         fp = &ha->tx_fp[rss_id];
1441
1442         if (fp->tx_br == NULL) {
1443                 ret = EINVAL;
1444                 goto qla_transmit_exit;
1445         }
1446
1447         if (mp != NULL) {
1448                 ret = drbr_enqueue(ifp, fp->tx_br, mp);
1449         }
1450
1451         if (fp->fp_taskqueue != NULL)
1452                 taskqueue_enqueue(fp->fp_taskqueue, &fp->fp_task);
1453
1454         ret = 0;
1455
1456 qla_transmit_exit:
1457
1458         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit ret = %d\n", __func__, ret));
1459         return ret;
1460 }
1461
1462 static void
1463 qla_qflush(struct ifnet *ifp)
1464 {
1465         int                     i;
1466         qla_tx_fp_t             *fp;
1467         struct mbuf             *mp;
1468         qla_host_t              *ha;
1469
1470         ha = (qla_host_t *)ifp->if_softc;
1471
1472         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1473
1474         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1475
1476                 fp = &ha->tx_fp[i];
1477
1478                 if (fp == NULL)
1479                         continue;
1480
1481                 if (fp->tx_br) {
1482                         mtx_lock(&fp->tx_mtx);
1483
1484                         while ((mp = drbr_dequeue(ifp, fp->tx_br)) != NULL) {
1485                                 m_freem(mp);
1486                         }
1487                         mtx_unlock(&fp->tx_mtx);
1488                 }
1489         }
1490         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1491
1492         return;
1493 }
1494
1495 static void
1496 qla_stop(qla_host_t *ha)
1497 {
1498         struct ifnet *ifp = ha->ifp;
1499         device_t        dev;
1500         int i = 0;
1501
1502         dev = ha->pci_dev;
1503
1504         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
1505
1506         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1507                 qla_tx_fp_t *fp;
1508
1509                 fp = &ha->tx_fp[i];
1510
1511                 if (fp == NULL)
1512                         continue;
1513
1514                 if (fp->tx_br != NULL) {
1515                         mtx_lock(&fp->tx_mtx);
1516                         mtx_unlock(&fp->tx_mtx);
1517                 }
1518         }
1519
1520         ha->flags.qla_watchdog_pause = 1;
1521
1522         while (!ha->qla_watchdog_paused) {
1523                 QLA_UNLOCK(ha);
1524                 qla_mdelay(__func__, 1);
1525                 QLA_LOCK(ha);
1526         }
1527
1528         ha->flags.qla_interface_up = 0;
1529
1530         QLA_UNLOCK(ha);
1531         qla_drain_fp_taskqueues(ha);
1532         QLA_LOCK(ha);
1533
1534         ql_del_hw_if(ha);
1535
1536         qla_free_xmt_bufs(ha);
1537         qla_free_rcv_bufs(ha);
1538
1539         return;
1540 }
1541
1542 /*
1543  * Buffer Management Functions for Transmit and Receive Rings
1544  */
1545 static int
1546 qla_alloc_xmt_bufs(qla_host_t *ha)
1547 {
1548         int ret = 0;
1549         uint32_t i, j;
1550         qla_tx_buf_t *txb;
1551
1552         if (bus_dma_tag_create(NULL,    /* parent */
1553                 1, 0,    /* alignment, bounds */
1554                 BUS_SPACE_MAXADDR,       /* lowaddr */
1555                 BUS_SPACE_MAXADDR,       /* highaddr */
1556                 NULL, NULL,      /* filter, filterarg */
1557                 QLA_MAX_TSO_FRAME_SIZE,     /* maxsize */
1558                 QLA_MAX_SEGMENTS,        /* nsegments */
1559                 PAGE_SIZE,        /* maxsegsize */
1560                 BUS_DMA_ALLOCNOW,        /* flags */
1561                 NULL,    /* lockfunc */
1562                 NULL,    /* lockfuncarg */
1563                 &ha->tx_tag)) {
1564                 device_printf(ha->pci_dev, "%s: tx_tag alloc failed\n",
1565                         __func__);
1566                 return (ENOMEM);
1567         }
1568
1569         for (i = 0; i < ha->hw.num_tx_rings; i++) {
1570                 bzero((void *)ha->tx_ring[i].tx_buf,
1571                         (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1572         }
1573
1574         for (j = 0; j < ha->hw.num_tx_rings; j++) {
1575                 for (i = 0; i < NUM_TX_DESCRIPTORS; i++) {
1576
1577                         txb = &ha->tx_ring[j].tx_buf[i];
1578
1579                         if ((ret = bus_dmamap_create(ha->tx_tag,
1580                                         BUS_DMA_NOWAIT, &txb->map))) {
1581
1582                                 ha->err_tx_dmamap_create++;
1583                                 device_printf(ha->pci_dev,
1584                                         "%s: bus_dmamap_create failed[%d]\n",
1585                                         __func__, ret);
1586
1587                                 qla_free_xmt_bufs(ha);
1588
1589                                 return (ret);
1590                         }
1591                 }
1592         }
1593
1594         return 0;
1595 }
1596
1597 /*
1598  * Release mbuf after it sent on the wire
1599  */
1600 static void
1601 qla_clear_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb)
1602 {
1603         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1604
1605         if (txb->m_head && txb->map) {
1606
1607                 bus_dmamap_unload(ha->tx_tag, txb->map);
1608
1609                 m_freem(txb->m_head);
1610                 txb->m_head = NULL;
1611         }
1612
1613         if (txb->map)
1614                 bus_dmamap_destroy(ha->tx_tag, txb->map);
1615
1616         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1617 }
1618
1619 static void
1620 qla_free_xmt_bufs(qla_host_t *ha)
1621 {
1622         int             i, j;
1623
1624         for (j = 0; j < ha->hw.num_tx_rings; j++) {
1625                 for (i = 0; i < NUM_TX_DESCRIPTORS; i++)
1626                         qla_clear_tx_buf(ha, &ha->tx_ring[j].tx_buf[i]);
1627         }
1628
1629         if (ha->tx_tag != NULL) {
1630                 bus_dma_tag_destroy(ha->tx_tag);
1631                 ha->tx_tag = NULL;
1632         }
1633
1634         for (i = 0; i < ha->hw.num_tx_rings; i++) {
1635                 bzero((void *)ha->tx_ring[i].tx_buf,
1636                         (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1637         }
1638         return;
1639 }
1640
1641
1642 static int
1643 qla_alloc_rcv_std(qla_host_t *ha)
1644 {
1645         int             i, j, k, r, ret = 0;
1646         qla_rx_buf_t    *rxb;
1647         qla_rx_ring_t   *rx_ring;
1648
1649         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1650
1651                 rx_ring = &ha->rx_ring[r];
1652
1653                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1654
1655                         rxb = &rx_ring->rx_buf[i];
1656
1657                         ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT,
1658                                         &rxb->map);
1659
1660                         if (ret) {
1661                                 device_printf(ha->pci_dev,
1662                                         "%s: dmamap[%d, %d] failed\n",
1663                                         __func__, r, i);
1664
1665                                 for (k = 0; k < r; k++) {
1666                                         for (j = 0; j < NUM_RX_DESCRIPTORS;
1667                                                 j++) {
1668                                                 rxb = &ha->rx_ring[k].rx_buf[j];
1669                                                 bus_dmamap_destroy(ha->rx_tag,
1670                                                         rxb->map);
1671                                         }
1672                                 }
1673
1674                                 for (j = 0; j < i; j++) {
1675                                         bus_dmamap_destroy(ha->rx_tag,
1676                                                 rx_ring->rx_buf[j].map);
1677                                 }
1678                                 goto qla_alloc_rcv_std_err;
1679                         }
1680                 }
1681         }
1682
1683         qla_init_hw_rcv_descriptors(ha);
1684
1685
1686         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1687
1688                 rx_ring = &ha->rx_ring[r];
1689
1690                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1691                         rxb = &rx_ring->rx_buf[i];
1692                         rxb->handle = i;
1693                         if (!(ret = ql_get_mbuf(ha, rxb, NULL))) {
1694                                 /*
1695                                  * set the physical address in the
1696                                  * corresponding descriptor entry in the
1697                                  * receive ring/queue for the hba
1698                                  */
1699                                 qla_set_hw_rcv_desc(ha, r, i, rxb->handle,
1700                                         rxb->paddr,
1701                                         (rxb->m_head)->m_pkthdr.len);
1702                         } else {
1703                                 device_printf(ha->pci_dev,
1704                                         "%s: ql_get_mbuf [%d, %d] failed\n",
1705                                         __func__, r, i);
1706                                 bus_dmamap_destroy(ha->rx_tag, rxb->map);
1707                                 goto qla_alloc_rcv_std_err;
1708                         }
1709                 }
1710         }
1711         return 0;
1712
1713 qla_alloc_rcv_std_err:
1714         return (-1);
1715 }
1716
1717 static void
1718 qla_free_rcv_std(qla_host_t *ha)
1719 {
1720         int             i, r;
1721         qla_rx_buf_t    *rxb;
1722
1723         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1724                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1725                         rxb = &ha->rx_ring[r].rx_buf[i];
1726                         if (rxb->m_head != NULL) {
1727                                 bus_dmamap_unload(ha->rx_tag, rxb->map);
1728                                 bus_dmamap_destroy(ha->rx_tag, rxb->map);
1729                                 m_freem(rxb->m_head);
1730                                 rxb->m_head = NULL;
1731                         }
1732                 }
1733         }
1734         return;
1735 }
1736
1737 static int
1738 qla_alloc_rcv_bufs(qla_host_t *ha)
1739 {
1740         int             i, ret = 0;
1741
1742         if (bus_dma_tag_create(NULL,    /* parent */
1743                         1, 0,    /* alignment, bounds */
1744                         BUS_SPACE_MAXADDR,       /* lowaddr */
1745                         BUS_SPACE_MAXADDR,       /* highaddr */
1746                         NULL, NULL,      /* filter, filterarg */
1747                         MJUM9BYTES,     /* maxsize */
1748                         1,        /* nsegments */
1749                         MJUM9BYTES,        /* maxsegsize */
1750                         BUS_DMA_ALLOCNOW,        /* flags */
1751                         NULL,    /* lockfunc */
1752                         NULL,    /* lockfuncarg */
1753                         &ha->rx_tag)) {
1754
1755                 device_printf(ha->pci_dev, "%s: rx_tag alloc failed\n",
1756                         __func__);
1757
1758                 return (ENOMEM);
1759         }
1760
1761         bzero((void *)ha->rx_ring, (sizeof(qla_rx_ring_t) * MAX_RDS_RINGS));
1762
1763         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1764                 ha->hw.sds[i].sdsr_next = 0;
1765                 ha->hw.sds[i].rxb_free = NULL;
1766                 ha->hw.sds[i].rx_free = 0;
1767         }
1768
1769         ret = qla_alloc_rcv_std(ha);
1770
1771         return (ret);
1772 }
1773
1774 static void
1775 qla_free_rcv_bufs(qla_host_t *ha)
1776 {
1777         int             i;
1778
1779         qla_free_rcv_std(ha);
1780
1781         if (ha->rx_tag != NULL) {
1782                 bus_dma_tag_destroy(ha->rx_tag);
1783                 ha->rx_tag = NULL;
1784         }
1785
1786         bzero((void *)ha->rx_ring, (sizeof(qla_rx_ring_t) * MAX_RDS_RINGS));
1787
1788         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1789                 ha->hw.sds[i].sdsr_next = 0;
1790                 ha->hw.sds[i].rxb_free = NULL;
1791                 ha->hw.sds[i].rx_free = 0;
1792         }
1793
1794         return;
1795 }
1796
1797 int
1798 ql_get_mbuf(qla_host_t *ha, qla_rx_buf_t *rxb, struct mbuf *nmp)
1799 {
1800         struct mbuf *mp = nmp;
1801         struct ifnet            *ifp;
1802         int                     ret = 0;
1803         uint32_t                offset;
1804         bus_dma_segment_t       segs[1];
1805         int                     nsegs, mbuf_size;
1806
1807         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1808
1809         ifp = ha->ifp;
1810
1811         if (ha->hw.enable_9kb)
1812                 mbuf_size = MJUM9BYTES;
1813         else
1814                 mbuf_size = MCLBYTES;
1815
1816         if (mp == NULL) {
1817
1818                 if (QL_ERR_INJECT(ha, INJCT_M_GETCL_M_GETJCL_FAILURE))
1819                         return(-1);
1820
1821                 if (ha->hw.enable_9kb)
1822                         mp = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, mbuf_size);
1823                 else
1824                         mp = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1825
1826                 if (mp == NULL) {
1827                         ha->err_m_getcl++;
1828                         ret = ENOBUFS;
1829                         device_printf(ha->pci_dev,
1830                                         "%s: m_getcl failed\n", __func__);
1831                         goto exit_ql_get_mbuf;
1832                 }
1833                 mp->m_len = mp->m_pkthdr.len = mbuf_size;
1834         } else {
1835                 mp->m_len = mp->m_pkthdr.len = mbuf_size;
1836                 mp->m_data = mp->m_ext.ext_buf;
1837                 mp->m_next = NULL;
1838         }
1839
1840         offset = (uint32_t)((unsigned long long)mp->m_data & 0x7ULL);
1841         if (offset) {
1842                 offset = 8 - offset;
1843                 m_adj(mp, offset);
1844         }
1845
1846         /*
1847          * Using memory from the mbuf cluster pool, invoke the bus_dma
1848          * machinery to arrange the memory mapping.
1849          */
1850         ret = bus_dmamap_load_mbuf_sg(ha->rx_tag, rxb->map,
1851                         mp, segs, &nsegs, BUS_DMA_NOWAIT);
1852         rxb->paddr = segs[0].ds_addr;
1853
1854         if (ret || !rxb->paddr || (nsegs != 1)) {
1855                 m_free(mp);
1856                 rxb->m_head = NULL;
1857                 device_printf(ha->pci_dev,
1858                         "%s: bus_dmamap_load failed[%d, 0x%016llx, %d]\n",
1859                         __func__, ret, (long long unsigned int)rxb->paddr,
1860                         nsegs);
1861                 ret = -1;
1862                 goto exit_ql_get_mbuf;
1863         }
1864         rxb->m_head = mp;
1865         bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_PREREAD);
1866
1867 exit_ql_get_mbuf:
1868         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit ret = 0x%08x\n", __func__, ret));
1869         return (ret);
1870 }
1871
1872
1873 static void
1874 qla_get_peer(qla_host_t *ha)
1875 {
1876         device_t *peers;
1877         int count, i, slot;
1878         int my_slot = pci_get_slot(ha->pci_dev);
1879
1880         if (device_get_children(device_get_parent(ha->pci_dev), &peers, &count))
1881                 return;
1882
1883         for (i = 0; i < count; i++) {
1884                 slot = pci_get_slot(peers[i]);
1885
1886                 if ((slot >= 0) && (slot == my_slot) &&
1887                         (pci_get_device(peers[i]) ==
1888                                 pci_get_device(ha->pci_dev))) {
1889                         if (ha->pci_dev != peers[i])
1890                                 ha->peer_dev = peers[i];
1891                 }
1892         }
1893 }
1894
1895 static void
1896 qla_send_msg_to_peer(qla_host_t *ha, uint32_t msg_to_peer)
1897 {
1898         qla_host_t *ha_peer;
1899
1900         if (ha->peer_dev) {
1901                 if ((ha_peer = device_get_softc(ha->peer_dev)) != NULL) {
1902
1903                         ha_peer->msg_from_peer = msg_to_peer;
1904                 }
1905         }
1906 }
1907
1908 static void
1909 qla_error_recovery(void *context, int pending)
1910 {
1911         qla_host_t *ha = context;
1912         uint32_t msecs_100 = 100;
1913         struct ifnet *ifp = ha->ifp;
1914         int i = 0;
1915
1916         QLA_LOCK(ha);
1917
1918         if (ha->flags.qla_interface_up) {
1919
1920                 ha->hw.imd_compl = 1;
1921
1922                 QLA_UNLOCK(ha);
1923                 qla_mdelay(__func__, 300);
1924                 QLA_LOCK(ha);
1925
1926                 ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
1927
1928                 for (i = 0; i < ha->hw.num_sds_rings; i++) {
1929                         qla_tx_fp_t *fp;
1930
1931                         fp = &ha->tx_fp[i];
1932
1933                         if (fp == NULL)
1934                                 continue;
1935
1936                         if (fp->tx_br != NULL) {
1937                                 mtx_lock(&fp->tx_mtx);
1938                                 mtx_unlock(&fp->tx_mtx);
1939                         }
1940                 }
1941         }
1942
1943         QLA_UNLOCK(ha);
1944
1945         qla_drain_fp_taskqueues(ha);
1946
1947         if ((ha->pci_func & 0x1) == 0) {
1948
1949                 if (!ha->msg_from_peer) {
1950                         qla_send_msg_to_peer(ha, QL_PEER_MSG_RESET);
1951
1952                         while ((ha->msg_from_peer != QL_PEER_MSG_ACK) &&
1953                                 msecs_100--)
1954                                 qla_mdelay(__func__, 100);
1955                 }
1956
1957                 ha->msg_from_peer = 0;
1958
1959                 QLA_LOCK(ha);
1960
1961                 ql_minidump(ha);
1962
1963                 QLA_UNLOCK(ha);
1964
1965                 (void) ql_init_hw(ha);
1966
1967                 QLA_LOCK(ha);
1968
1969                 if (ha->flags.qla_interface_up) {
1970                         qla_free_xmt_bufs(ha);
1971                         qla_free_rcv_bufs(ha);
1972                 }
1973
1974                 QLA_UNLOCK(ha);
1975
1976                 qla_send_msg_to_peer(ha, QL_PEER_MSG_ACK);
1977
1978         } else {
1979                 if (ha->msg_from_peer == QL_PEER_MSG_RESET) {
1980
1981                         ha->msg_from_peer = 0;
1982
1983                         qla_send_msg_to_peer(ha, QL_PEER_MSG_ACK);
1984                 } else {
1985                         qla_send_msg_to_peer(ha, QL_PEER_MSG_RESET);
1986                 }
1987
1988                 while ((ha->msg_from_peer != QL_PEER_MSG_ACK)  && msecs_100--)
1989                         qla_mdelay(__func__, 100);
1990                 ha->msg_from_peer = 0;
1991
1992                 (void) ql_init_hw(ha);
1993
1994                 QLA_LOCK(ha);
1995
1996                 if (ha->flags.qla_interface_up) {
1997                         qla_free_xmt_bufs(ha);
1998                         qla_free_rcv_bufs(ha);
1999                 }
2000
2001                 QLA_UNLOCK(ha);
2002         }
2003
2004         QLA_LOCK(ha);
2005
2006         if (ha->flags.qla_interface_up) {
2007
2008                 if (qla_alloc_xmt_bufs(ha) != 0) {
2009                         QLA_UNLOCK(ha);
2010                         return;
2011                 }
2012                 qla_confirm_9kb_enable(ha);
2013
2014                 if (qla_alloc_rcv_bufs(ha) != 0) {
2015                         QLA_UNLOCK(ha);
2016                         return;
2017                 }
2018
2019                 ha->flags.stop_rcv = 0;
2020
2021                 if (ql_init_hw_if(ha) == 0) {
2022                         ifp = ha->ifp;
2023                         ifp->if_drv_flags |= IFF_DRV_RUNNING;
2024                         ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2025                         ha->flags.qla_watchdog_pause = 0;
2026                 }
2027         } else
2028                 ha->flags.qla_watchdog_pause = 0;
2029
2030         QLA_UNLOCK(ha);
2031 }
2032
2033 static void
2034 qla_async_event(void *context, int pending)
2035 {
2036         qla_host_t *ha = context;
2037
2038         QLA_LOCK(ha);
2039         qla_hw_async_event(ha);
2040         QLA_UNLOCK(ha);
2041 }
2042