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_link_status(SYSCTL_HANDLER_ARGS);
  74 static void qla_release(qla_host_t *ha);
  75 static void qla_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs,
  76                 int error);
  77 static void qla_stop(qla_host_t *ha);
  78 static void qla_get_peer(qla_host_t *ha);
  79 static void qla_error_recovery(void *context, int pending);
  80 static void qla_async_event(void *context, int pending);
  81 static void qla_stats(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_STRING(device_get_sysctl_ctx(dev),
 172                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 173                 OID_AUTO, "fw_version", CTLFLAG_RD,
 174                 ha->fw_ver_str, 0, "firmware version");
 175
 176         SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
 177                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 178                 OID_AUTO, "link_status", CTLTYPE_INT | CTLFLAG_RW,
 179                 (void *)ha, 0,
 180                 qla_sysctl_get_link_status, "I", "Link Status");
 181
 182         ha->dbg_level = 0;
 183         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 184                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 185                 OID_AUTO, "debug", CTLFLAG_RW,
 186                 &ha->dbg_level, ha->dbg_level, "Debug Level");
 187
 188         ha->enable_minidump = 1;
 189         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 190                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 191                 OID_AUTO, "enable_minidump", CTLFLAG_RW,
 192                 &ha->enable_minidump, ha->enable_minidump,
 193                 "Minidump retrival is enabled only when this is set");
 194
 195         ha->std_replenish = QL_STD_REPLENISH_THRES;
 196         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 197                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 198                 OID_AUTO, "std_replenish", CTLFLAG_RW,
 199                 &ha->std_replenish, ha->std_replenish,
 200                 "Threshold for Replenishing Standard Frames");
 201
 202         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 203                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 204                 OID_AUTO, "ipv4_lro",
 205                 CTLFLAG_RD, &ha->ipv4_lro,
 206                 "number of ipv4 lro completions");
 207
 208         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 209                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 210                 OID_AUTO, "ipv6_lro",
 211                 CTLFLAG_RD, &ha->ipv6_lro,
 212                 "number of ipv6 lro completions");
 213
 214         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 215                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 216                 OID_AUTO, "tx_tso_frames",
 217                 CTLFLAG_RD, &ha->tx_tso_frames,
 218                 "number of Tx TSO Frames");
 219
 220         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 221                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 222                 OID_AUTO, "hw_vlan_tx_frames",
 223                 CTLFLAG_RD, &ha->hw_vlan_tx_frames,
 224                 "number of Tx VLAN Frames");
 225
 226         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 227                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 228                 OID_AUTO, "hw_lock_failed",
 229                 CTLFLAG_RD, &ha->hw_lock_failed,
 230                 "number of hw_lock failures");
 231
 232         return;
 233 }
 234
 235 static void
 236 qla_watchdog(void *arg)
 237 {
 238         qla_host_t *ha = arg;
 239         qla_hw_t *hw;
 240         struct ifnet *ifp;
 241
 242         hw = &ha->hw;
 243         ifp = ha->ifp;
 244
 245         if (ha->qla_watchdog_exit) {
 246                 ha->qla_watchdog_exited = 1;
 247                 return;
 248         }
 249         ha->qla_watchdog_exited = 0;
 250
 251         if (!ha->qla_watchdog_pause) {
 252                 if (ql_hw_check_health(ha) || ha->qla_initiate_recovery ||
 253                         (ha->msg_from_peer == QL_PEER_MSG_RESET)) {
 254
 255                         if (!(ha->dbg_level & 0x8000)) {
 256                                 ha->qla_watchdog_paused = 1;
 257                                 ha->qla_watchdog_pause = 1;
 258                                 ha->qla_initiate_recovery = 0;
 259                                 ha->err_inject = 0;
 260                                 device_printf(ha->pci_dev,
 261                                         "%s: taskqueue_enqueue(err_task) \n",
 262                                         __func__);
 263                                 taskqueue_enqueue(ha->err_tq, &ha->err_task);
 264                                 return;
 265                         }
 266
 267                 } else if (ha->qla_interface_up) {
 268
 269                         ha->watchdog_ticks++;
 270
 271                         if (ha->watchdog_ticks > 1000)
 272                                 ha->watchdog_ticks = 0;
 273
 274                         if (!ha->watchdog_ticks && QL_RUNNING(ifp)) {
 275                                 taskqueue_enqueue(ha->stats_tq, &ha->stats_task);
 276                         }
 277
 278                         if (ha->async_event) {
 279                                 taskqueue_enqueue(ha->async_event_tq,
 280                                         &ha->async_event_task);
 281                         }
 282
 283 #if 0
 284                         for (i = 0; ((i < ha->hw.num_sds_rings) &&
 285                                         !ha->watchdog_ticks); i++) {
 286                                 qla_tx_fp_t *fp = &ha->tx_fp[i];
 287
 288                                 if (fp->fp_taskqueue != NULL)
 289                                         taskqueue_enqueue(fp->fp_taskqueue,
 290                                                 &fp->fp_task);
 291                         }
 292 #endif
 293                         ha->qla_watchdog_paused = 0;
 294                 } else {
 295                         ha->qla_watchdog_paused = 0;
 296                 }
 297         } else {
 298                 ha->qla_watchdog_paused = 1;
 299         }
 300
 301         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 302                 qla_watchdog, ha);
 303 }
 304
 305 /*
 306  * Name:        qla_pci_attach
 307  * Function:    attaches the device to the operating system
 308  */
 309 static int
 310 qla_pci_attach(device_t dev)
 311 {
 312         qla_host_t *ha = NULL;
 313         uint32_t rsrc_len;
 314         int i;
 315         uint32_t num_rcvq = 0;
 316
 317         if ((ha = device_get_softc(dev)) == NULL) {
 318                 device_printf(dev, "cannot get softc\n");
 319                 return (ENOMEM);
 320         }
 321
 322         memset(ha, 0, sizeof (qla_host_t));
 323
 324         if (pci_get_device(dev) != PCI_PRODUCT_QLOGIC_ISP8030) {
 325                 device_printf(dev, "device is not ISP8030\n");
 326                 return (ENXIO);
 327         }
 328
 329         ha->pci_func = pci_get_function(dev) & 0x1;
 330
 331         ha->pci_dev = dev;
 332
 333         pci_enable_busmaster(dev);
 334
 335         ha->reg_rid = PCIR_BAR(0);
 336         ha->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ha->reg_rid,
 337                                 RF_ACTIVE);
 338
 339         if (ha->pci_reg == NULL) {
 340                 device_printf(dev, "unable to map any ports\n");
 341                 goto qla_pci_attach_err;
 342         }
 343
 344         rsrc_len = (uint32_t) bus_get_resource_count(dev, SYS_RES_MEMORY,
 345                                         ha->reg_rid);
 346
 347         mtx_init(&ha->hw_lock, "qla83xx_hw_lock", MTX_NETWORK_LOCK, MTX_DEF);
 348         ha->flags.lock_init = 1;
 349
 350         qla_add_sysctls(ha);
 351
 352         ha->hw.num_sds_rings = MAX_SDS_RINGS;
 353         ha->hw.num_rds_rings = MAX_RDS_RINGS;
 354         ha->hw.num_tx_rings = NUM_TX_RINGS;
 355
 356         ha->reg_rid1 = PCIR_BAR(2);
 357         ha->pci_reg1 = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
 358                         &ha->reg_rid1, RF_ACTIVE);
 359
 360         ha->msix_count = pci_msix_count(dev);
 361
 362         if (ha->msix_count < 1 ) {
 363                 device_printf(dev, "%s: msix_count[%d] not enough\n", __func__,
 364                         ha->msix_count);
 365                 goto qla_pci_attach_err;
 366         }
 367
 368         if (ha->msix_count < (ha->hw.num_sds_rings + 1)) {
 369                 ha->hw.num_sds_rings = ha->msix_count - 1;
 370         }
 371
 372         QL_DPRINT2(ha, (dev, "%s: ha %p pci_func 0x%x rsrc_count 0x%08x"
 373                 " msix_count 0x%x pci_reg %p pci_reg1 %p\n", __func__, ha,
 374                 ha->pci_func, rsrc_len, ha->msix_count, ha->pci_reg,
 375                 ha->pci_reg1));
 376
 377         /* initialize hardware */
 378         if (ql_init_hw(ha)) {
 379                 device_printf(dev, "%s: ql_init_hw failed\n", __func__);
 380                 goto qla_pci_attach_err;
 381         }
 382
 383         device_printf(dev, "%s: firmware[%d.%d.%d.%d]\n", __func__,
 384                 ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 385                 ha->fw_ver_build);
 386         snprintf(ha->fw_ver_str, sizeof(ha->fw_ver_str), "%d.%d.%d.%d",
 387                         ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 388                         ha->fw_ver_build);
 389
 390         if (qla_get_nic_partition(ha, NULL, &num_rcvq)) {
 391                 device_printf(dev, "%s: qla_get_nic_partition failed\n",
 392                         __func__);
 393                 goto qla_pci_attach_err;
 394         }
 395         device_printf(dev, "%s: ha %p pci_func 0x%x rsrc_count 0x%08x"
 396                 " msix_count 0x%x pci_reg %p pci_reg1 %p num_rcvq = %d\n",
 397                 __func__, ha, ha->pci_func, rsrc_len, ha->msix_count,
 398                 ha->pci_reg, ha->pci_reg1, num_rcvq);
 399
 400         if ((ha->msix_count  < 64) || (num_rcvq != 32)) {
 401                 if (ha->hw.num_sds_rings > 15) {
 402                         ha->hw.num_sds_rings = 15;
 403                 }
 404         }
 405
 406         ha->hw.num_rds_rings = ha->hw.num_sds_rings;
 407         ha->hw.num_tx_rings = ha->hw.num_sds_rings;
 408
 409 #ifdef QL_ENABLE_ISCSI_TLV
 410         ha->hw.num_tx_rings = ha->hw.num_sds_rings * 2;
 411 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
 412
 413         ql_hw_add_sysctls(ha);
 414
 415         ha->msix_count = ha->hw.num_sds_rings + 1;
 416
 417         if (pci_alloc_msix(dev, &ha->msix_count)) {
 418                 device_printf(dev, "%s: pci_alloc_msi[%d] failed\n", __func__,
 419                         ha->msix_count);
 420                 ha->msix_count = 0;
 421                 goto qla_pci_attach_err;
 422         }
 423
 424         ha->mbx_irq_rid = 1;
 425         ha->mbx_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 426                                 &ha->mbx_irq_rid,
 427                                 (RF_ACTIVE | RF_SHAREABLE));
 428         if (ha->mbx_irq == NULL) {
 429                 device_printf(dev, "could not allocate mbx interrupt\n");
 430                 goto qla_pci_attach_err;
 431         }
 432         if (bus_setup_intr(dev, ha->mbx_irq, (INTR_TYPE_NET | INTR_MPSAFE),
 433                 NULL, ql_mbx_isr, ha, &ha->mbx_handle)) {
 434                 device_printf(dev, "could not setup mbx interrupt\n");
 435                 goto qla_pci_attach_err;
 436         }
 437
 438         for (i = 0; i < ha->hw.num_sds_rings; i++) {
 439                 ha->irq_vec[i].sds_idx = i;
 440                 ha->irq_vec[i].ha = ha;
 441                 ha->irq_vec[i].irq_rid = 2 + i;
 442
 443                 ha->irq_vec[i].irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 444                                 &ha->irq_vec[i].irq_rid,
 445                                 (RF_ACTIVE | RF_SHAREABLE));
 446
 447                 if (ha->irq_vec[i].irq == NULL) {
 448                         device_printf(dev, "could not allocate interrupt\n");
 449                         goto qla_pci_attach_err;
 450                 }
 451                 if (bus_setup_intr(dev, ha->irq_vec[i].irq,
 452                         (INTR_TYPE_NET | INTR_MPSAFE),
 453                         NULL, ql_isr, &ha->irq_vec[i],
 454                         &ha->irq_vec[i].handle)) {
 455                         device_printf(dev, "could not setup interrupt\n");
 456                         goto qla_pci_attach_err;
 457                 }
 458
 459                 ha->tx_fp[i].ha = ha;
 460                 ha->tx_fp[i].txr_idx = i;
 461
 462                 if (qla_alloc_tx_br(ha, &ha->tx_fp[i])) {
 463                         device_printf(dev, "%s: could not allocate tx_br[%d]\n",
 464                                 __func__, i);
 465                         goto qla_pci_attach_err;
 466                 }
 467         }
 468
 469         if (qla_create_fp_taskqueues(ha) != 0)
 470                 goto qla_pci_attach_err;
 471
 472         printf("%s: mp__ncpus %d sds %d rds %d msi-x %d\n", __func__, mp_ncpus,
 473                 ha->hw.num_sds_rings, ha->hw.num_rds_rings, ha->msix_count);
 474
 475         ql_read_mac_addr(ha);
 476
 477         /* allocate parent dma tag */
 478         if (qla_alloc_parent_dma_tag(ha)) {
 479                 device_printf(dev, "%s: qla_alloc_parent_dma_tag failed\n",
 480                         __func__);
 481                 goto qla_pci_attach_err;
 482         }
 483
 484         /* alloc all dma buffers */
 485         if (ql_alloc_dma(ha)) {
 486                 device_printf(dev, "%s: ql_alloc_dma failed\n", __func__);
 487                 goto qla_pci_attach_err;
 488         }
 489         qla_get_peer(ha);
 490
 491         if (ql_minidump_init(ha) != 0) {
 492                 device_printf(dev, "%s: ql_minidump_init failed\n", __func__);
 493                 goto qla_pci_attach_err;
 494         }
 495         /* create the o.s ethernet interface */
 496         qla_init_ifnet(dev, ha);
 497
 498         ha->flags.qla_watchdog_active = 1;
 499         ha->qla_watchdog_pause = 0;
 500
 501         callout_init(&ha->tx_callout, TRUE);
 502         ha->flags.qla_callout_init = 1;
 503
 504         /* create ioctl device interface */
 505         if (ql_make_cdev(ha)) {
 506                 device_printf(dev, "%s: ql_make_cdev failed\n", __func__);
 507                 goto qla_pci_attach_err;
 508         }
 509
 510         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 511                 qla_watchdog, ha);
 512
 513         TASK_INIT(&ha->err_task, 0, qla_error_recovery, ha);
 514         ha->err_tq = taskqueue_create("qla_errq", M_NOWAIT,
 515                         taskqueue_thread_enqueue, &ha->err_tq);
 516         taskqueue_start_threads(&ha->err_tq, 1, PI_NET, "%s errq",
 517                 device_get_nameunit(ha->pci_dev));
 518
 519         TASK_INIT(&ha->async_event_task, 0, qla_async_event, ha);
 520         ha->async_event_tq = taskqueue_create("qla_asyncq", M_NOWAIT,
 521                         taskqueue_thread_enqueue, &ha->async_event_tq);
 522         taskqueue_start_threads(&ha->async_event_tq, 1, PI_NET, "%s asyncq",
 523                 device_get_nameunit(ha->pci_dev));
 524
 525         TASK_INIT(&ha->stats_task, 0, qla_stats, ha);
 526         ha->stats_tq = taskqueue_create("qla_statsq", M_NOWAIT,
 527                         taskqueue_thread_enqueue, &ha->stats_tq);
 528         taskqueue_start_threads(&ha->stats_tq, 1, PI_NET, "%s taskq",
 529                 device_get_nameunit(ha->pci_dev));
 530
 531         QL_DPRINT2(ha, (dev, "%s: exit 0\n", __func__));
 532         return (0);
 533
 534 qla_pci_attach_err:
 535
 536         qla_release(ha);
 537
 538         if (ha->flags.lock_init) {
 539                 mtx_destroy(&ha->hw_lock);
 540         }
 541
 542         QL_DPRINT2(ha, (dev, "%s: exit ENXIO\n", __func__));
 543         return (ENXIO);
 544 }
 545
 546 /*
 547  * Name:        qla_pci_detach
 548  * Function:    Unhooks the device from the operating system
 549  */
 550 static int
 551 qla_pci_detach(device_t dev)
 552 {
 553         qla_host_t *ha = NULL;
 554         struct ifnet *ifp;
 555
 556
 557         if ((ha = device_get_softc(dev)) == NULL) {
 558                 device_printf(dev, "cannot get softc\n");
 559                 return (ENOMEM);
 560         }
 561
 562         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 563
 564         ifp = ha->ifp;
 565
 566         ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
 567         QLA_LOCK(ha, __func__, -1, 0);
 568
 569         ha->qla_detach_active = 1;
 570         qla_stop(ha);
 571
 572         qla_release(ha);
 573
 574         QLA_UNLOCK(ha, __func__);
 575
 576         if (ha->flags.lock_init) {
 577                 mtx_destroy(&ha->hw_lock);
 578         }
 579
 580         QL_DPRINT2(ha, (dev, "%s: exit\n", __func__));
 581
 582         return (0);
 583 }
 584
 585 /*
 586  * SYSCTL Related Callbacks
 587  */
 588 static int
 589 qla_sysctl_get_link_status(SYSCTL_HANDLER_ARGS)
 590 {
 591         int err, ret = 0;
 592         qla_host_t *ha;
 593
 594         err = sysctl_handle_int(oidp, &ret, 0, req);
 595
 596         if (err || !req->newptr)
 597                 return (err);
 598
 599         if (ret == 1) {
 600                 ha = (qla_host_t *)arg1;
 601                 ql_hw_link_status(ha);
 602         }
 603         return (err);
 604 }
 605
 606 /*
 607  * Name:        qla_release
 608  * Function:    Releases the resources allocated for the device
 609  */
 610 static void
 611 qla_release(qla_host_t *ha)
 612 {
 613         device_t dev;
 614         int i;
 615
 616         dev = ha->pci_dev;
 617
 618         if (ha->async_event_tq) {
 619                 taskqueue_drain(ha->async_event_tq, &ha->async_event_task);
 620                 taskqueue_free(ha->async_event_tq);
 621         }
 622
 623         if (ha->err_tq) {
 624                 taskqueue_drain(ha->err_tq, &ha->err_task);
 625                 taskqueue_free(ha->err_tq);
 626         }
 627
 628         if (ha->stats_tq) {
 629                 taskqueue_drain(ha->stats_tq, &ha->stats_task);
 630                 taskqueue_free(ha->stats_tq);
 631         }
 632
 633         ql_del_cdev(ha);
 634
 635         if (ha->flags.qla_watchdog_active) {
 636                 ha->qla_watchdog_exit = 1;
 637
 638                 while (ha->qla_watchdog_exited == 0)
 639                         qla_mdelay(__func__, 1);
 640         }
 641
 642         if (ha->flags.qla_callout_init)
 643                 callout_stop(&ha->tx_callout);
 644
 645         if (ha->ifp != NULL)
 646                 ether_ifdetach(ha->ifp);
 647
 648         ql_free_dma(ha);
 649         qla_free_parent_dma_tag(ha);
 650
 651         if (ha->mbx_handle)
 652                 (void)bus_teardown_intr(dev, ha->mbx_irq, ha->mbx_handle);
 653
 654         if (ha->mbx_irq)
 655                 (void) bus_release_resource(dev, SYS_RES_IRQ, ha->mbx_irq_rid,
 656                                 ha->mbx_irq);
 657
 658         for (i = 0; i < ha->hw.num_sds_rings; i++) {
 659
 660                 if (ha->irq_vec[i].handle) {
 661                         (void)bus_teardown_intr(dev, ha->irq_vec[i].irq,
 662                                         ha->irq_vec[i].handle);
 663                 }
 664
 665                 if (ha->irq_vec[i].irq) {
 666                         (void)bus_release_resource(dev, SYS_RES_IRQ,
 667                                 ha->irq_vec[i].irq_rid,
 668                                 ha->irq_vec[i].irq);
 669                 }
 670
 671                 qla_free_tx_br(ha, &ha->tx_fp[i]);
 672         }
 673         qla_destroy_fp_taskqueues(ha);
 674
 675         if (ha->msix_count)
 676                 pci_release_msi(dev);
 677
 678 //      if (ha->flags.lock_init) {
 679 //              mtx_destroy(&ha->hw_lock);
 680 //      }
 681
 682         if (ha->pci_reg)
 683                 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid,
 684                                 ha->pci_reg);
 685
 686         if (ha->pci_reg1)
 687                 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid1,
 688                                 ha->pci_reg1);
 689
 690         return;
 691 }
 692
 693 /*
 694  * DMA Related Functions
 695  */
 696
 697 static void
 698 qla_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 699 {
 700         *((bus_addr_t *)arg) = 0;
 701
 702         if (error) {
 703                 printf("%s: bus_dmamap_load failed (%d)\n", __func__, error);
 704                 return;
 705         }
 706
 707         *((bus_addr_t *)arg) = segs[0].ds_addr;
 708
 709         return;
 710 }
 711
 712 int
 713 ql_alloc_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 714 {
 715         int             ret = 0;
 716         device_t        dev;
 717         bus_addr_t      b_addr;
 718
 719         dev = ha->pci_dev;
 720
 721         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 722
 723         ret = bus_dma_tag_create(
 724                         ha->parent_tag,/* parent */
 725                         dma_buf->alignment,
 726                         ((bus_size_t)(1ULL << 32)),/* boundary */
 727                         BUS_SPACE_MAXADDR,      /* lowaddr */
 728                         BUS_SPACE_MAXADDR,      /* highaddr */
 729                         NULL, NULL,             /* filter, filterarg */
 730                         dma_buf->size,          /* maxsize */
 731                         1,                      /* nsegments */
 732                         dma_buf->size,          /* maxsegsize */
 733                         0,                      /* flags */
 734                         NULL, NULL,             /* lockfunc, lockarg */
 735                         &dma_buf->dma_tag);
 736
 737         if (ret) {
 738                 device_printf(dev, "%s: could not create dma tag\n", __func__);
 739                 goto ql_alloc_dmabuf_exit;
 740         }
 741         ret = bus_dmamem_alloc(dma_buf->dma_tag,
 742                         (void **)&dma_buf->dma_b,
 743                         (BUS_DMA_ZERO | BUS_DMA_COHERENT | BUS_DMA_NOWAIT),
 744                         &dma_buf->dma_map);
 745         if (ret) {
 746                 bus_dma_tag_destroy(dma_buf->dma_tag);
 747                 device_printf(dev, "%s: bus_dmamem_alloc failed\n", __func__);
 748                 goto ql_alloc_dmabuf_exit;
 749         }
 750
 751         ret = bus_dmamap_load(dma_buf->dma_tag,
 752                         dma_buf->dma_map,
 753                         dma_buf->dma_b,
 754                         dma_buf->size,
 755                         qla_dmamap_callback,
 756                         &b_addr, BUS_DMA_NOWAIT);
 757
 758         if (ret || !b_addr) {
 759                 bus_dma_tag_destroy(dma_buf->dma_tag);
 760                 bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b,
 761                         dma_buf->dma_map);
 762                 ret = -1;
 763                 goto ql_alloc_dmabuf_exit;
 764         }
 765
 766         dma_buf->dma_addr = b_addr;
 767
 768 ql_alloc_dmabuf_exit:
 769         QL_DPRINT2(ha, (dev, "%s: exit ret 0x%08x tag %p map %p b %p sz 0x%x\n",
 770                 __func__, ret, (void *)dma_buf->dma_tag,
 771                 (void *)dma_buf->dma_map, (void *)dma_buf->dma_b,
 772                 dma_buf->size));
 773
 774         return ret;
 775 }
 776
 777 void
 778 ql_free_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 779 {
 780         bus_dmamap_unload(dma_buf->dma_tag, dma_buf->dma_map);
 781         bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b, dma_buf->dma_map);
 782         bus_dma_tag_destroy(dma_buf->dma_tag);
 783 }
 784
 785 static int
 786 qla_alloc_parent_dma_tag(qla_host_t *ha)
 787 {
 788         int             ret;
 789         device_t        dev;
 790
 791         dev = ha->pci_dev;
 792
 793         /*
 794          * Allocate parent DMA Tag
 795          */
 796         ret = bus_dma_tag_create(
 797                         bus_get_dma_tag(dev),   /* parent */
 798                         1,((bus_size_t)(1ULL << 32)),/* alignment, boundary */
 799                         BUS_SPACE_MAXADDR,      /* lowaddr */
 800                         BUS_SPACE_MAXADDR,      /* highaddr */
 801                         NULL, NULL,             /* filter, filterarg */
 802                         BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
 803                         0,                      /* nsegments */
 804                         BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
 805                         0,                      /* flags */
 806                         NULL, NULL,             /* lockfunc, lockarg */
 807                         &ha->parent_tag);
 808
 809         if (ret) {
 810                 device_printf(dev, "%s: could not create parent dma tag\n",
 811                         __func__);
 812                 return (-1);
 813         }
 814
 815         ha->flags.parent_tag = 1;
 816
 817         return (0);
 818 }
 819
 820 static void
 821 qla_free_parent_dma_tag(qla_host_t *ha)
 822 {
 823         if (ha->flags.parent_tag) {
 824                 bus_dma_tag_destroy(ha->parent_tag);
 825                 ha->flags.parent_tag = 0;
 826         }
 827 }
 828
 829 /*
 830  * Name: qla_init_ifnet
 831  * Function: Creates the Network Device Interface and Registers it with the O.S
 832  */
 833
 834 static void
 835 qla_init_ifnet(device_t dev, qla_host_t *ha)
 836 {
 837         struct ifnet *ifp;
 838
 839         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 840
 841         ifp = ha->ifp = if_alloc(IFT_ETHER);
 842
 843         if (ifp == NULL)
 844                 panic("%s: cannot if_alloc()\n", device_get_nameunit(dev));
 845
 846         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 847
 848         ifp->if_baudrate = IF_Gbps(10);
 849         ifp->if_capabilities = IFCAP_LINKSTATE;
 850         ifp->if_mtu = ETHERMTU;
 851
 852         ifp->if_init = qla_init;
 853         ifp->if_softc = ha;
 854         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 855         ifp->if_ioctl = qla_ioctl;
 856
 857         ifp->if_transmit = qla_transmit;
 858         ifp->if_qflush = qla_qflush;
 859
 860         IFQ_SET_MAXLEN(&ifp->if_snd, qla_get_ifq_snd_maxlen(ha));
 861         ifp->if_snd.ifq_drv_maxlen = qla_get_ifq_snd_maxlen(ha);
 862         IFQ_SET_READY(&ifp->if_snd);
 863
 864         ha->max_frame_size = ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 865
 866         ether_ifattach(ifp, qla_get_mac_addr(ha));
 867
 868         ifp->if_capabilities |= IFCAP_HWCSUM |
 869                                 IFCAP_TSO4 |
 870                                 IFCAP_JUMBO_MTU |
 871                                 IFCAP_VLAN_HWTAGGING |
 872                                 IFCAP_VLAN_MTU |
 873                                 IFCAP_VLAN_HWTSO |
 874                                 IFCAP_LRO;
 875
 876         ifp->if_capenable = ifp->if_capabilities;
 877
 878         ifp->if_hdrlen = sizeof(struct ether_vlan_header);
 879
 880         ifmedia_init(&ha->media, IFM_IMASK, qla_media_change, qla_media_status);
 881
 882         ifmedia_add(&ha->media, (IFM_ETHER | qla_get_optics(ha) | IFM_FDX), 0,
 883                 NULL);
 884         ifmedia_add(&ha->media, (IFM_ETHER | IFM_AUTO), 0, NULL);
 885
 886         ifmedia_set(&ha->media, (IFM_ETHER | IFM_AUTO));
 887
 888         QL_DPRINT2(ha, (dev, "%s: exit\n", __func__));
 889
 890         return;
 891 }
 892
 893 static void
 894 qla_init_locked(qla_host_t *ha)
 895 {
 896         struct ifnet *ifp = ha->ifp;
 897
 898         qla_stop(ha);
 899
 900         if (qla_alloc_xmt_bufs(ha) != 0)
 901                 return;
 902
 903         qla_confirm_9kb_enable(ha);
 904
 905         if (qla_alloc_rcv_bufs(ha) != 0)
 906                 return;
 907
 908         bcopy(IF_LLADDR(ha->ifp), ha->hw.mac_addr, ETHER_ADDR_LEN);
 909
 910         ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_TSO;
 911         ifp->if_hwassist |= CSUM_TCP_IPV6 | CSUM_UDP_IPV6;
 912
 913         ha->stop_rcv = 0;
 914         if (ql_init_hw_if(ha) == 0) {
 915                 ifp = ha->ifp;
 916                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
 917                 ha->qla_watchdog_pause = 0;
 918                 ha->hw_vlan_tx_frames = 0;
 919                 ha->tx_tso_frames = 0;
 920                 ha->qla_interface_up = 1;
 921                 ql_update_link_state(ha);
 922         }
 923
 924         return;
 925 }
 926
 927 static void
 928 qla_init(void *arg)
 929 {
 930         qla_host_t *ha;
 931
 932         ha = (qla_host_t *)arg;
 933
 934         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
 935
 936         if (QLA_LOCK(ha, __func__, -1, 0) != 0)
 937                 return;
 938
 939         qla_init_locked(ha);
 940
 941         QLA_UNLOCK(ha, __func__);
 942
 943         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
 944 }
 945
 946 static int
 947 qla_set_multi(qla_host_t *ha, uint32_t add_multi)
 948 {
 949         uint8_t mta[Q8_MAX_NUM_MULTICAST_ADDRS * Q8_MAC_ADDR_LEN];
 950         struct ifmultiaddr *ifma;
 951         int mcnt = 0;
 952         struct ifnet *ifp = ha->ifp;
 953         int ret = 0;
 954
 955         if_maddr_rlock(ifp);
 956
 957         TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 958
 959                 if (ifma->ifma_addr->sa_family != AF_LINK)
 960                         continue;
 961
 962                 if (mcnt == Q8_MAX_NUM_MULTICAST_ADDRS)
 963                         break;
 964
 965                 bcopy(LLADDR((struct sockaddr_dl *) ifma->ifma_addr),
 966                         &mta[mcnt * Q8_MAC_ADDR_LEN], Q8_MAC_ADDR_LEN);
 967
 968                 mcnt++;
 969         }
 970
 971         if_maddr_runlock(ifp);
 972
 973         if (QLA_LOCK(ha, __func__, QLA_LOCK_DEFAULT_MS_TIMEOUT,
 974                 QLA_LOCK_NO_SLEEP) != 0)
 975                 return (-1);
 976
 977         if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 978                 ret = ql_hw_set_multi(ha, mta, mcnt, add_multi);
 979         }
 980
 981         QLA_UNLOCK(ha, __func__);
 982
 983         return (ret);
 984 }
 985
 986 static int
 987 qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 988 {
 989         int ret = 0;
 990         struct ifreq *ifr = (struct ifreq *)data;
 991         struct ifaddr *ifa = (struct ifaddr *)data;
 992         qla_host_t *ha;
 993
 994         ha = (qla_host_t *)ifp->if_softc;
 995
 996         switch (cmd) {
 997         case SIOCSIFADDR:
 998                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFADDR (0x%lx)\n",
 999                         __func__, cmd));
1000
1001                 if (ifa->ifa_addr->sa_family == AF_INET) {
1002
1003                         ret = QLA_LOCK(ha, __func__,
1004                                         QLA_LOCK_DEFAULT_MS_TIMEOUT,
1005                                         QLA_LOCK_NO_SLEEP);
1006                         if (ret)
1007                                 break;
1008
1009                         ifp->if_flags |= IFF_UP;
1010
1011                         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1012                                 qla_init_locked(ha);
1013                         }
1014
1015                         QLA_UNLOCK(ha, __func__);
1016                         QL_DPRINT4(ha, (ha->pci_dev,
1017                                 "%s: SIOCSIFADDR (0x%lx) ipv4 [0x%08x]\n",
1018                                 __func__, cmd,
1019                                 ntohl(IA_SIN(ifa)->sin_addr.s_addr)));
1020
1021                         arp_ifinit(ifp, ifa);
1022                 } else {
1023                         ether_ioctl(ifp, cmd, data);
1024                 }
1025                 break;
1026
1027         case SIOCSIFMTU:
1028                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFMTU (0x%lx)\n",
1029                         __func__, cmd));
1030
1031                 if (ifr->ifr_mtu > QLA_MAX_MTU) {
1032                         ret = EINVAL;
1033                 } else {
1034                         ret = QLA_LOCK(ha, __func__, QLA_LOCK_DEFAULT_MS_TIMEOUT,
1035                                         QLA_LOCK_NO_SLEEP);
1036
1037                         if (ret)
1038                                 break;
1039
1040                         ifp->if_mtu = ifr->ifr_mtu;
1041                         ha->max_frame_size =
1042                                 ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
1043
1044                         if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1045                                 qla_init_locked(ha);
1046                         }
1047
1048                         if (ifp->if_mtu > ETHERMTU)
1049                                 ha->std_replenish = QL_JUMBO_REPLENISH_THRES;
1050                         else
1051                                 ha->std_replenish = QL_STD_REPLENISH_THRES;
1052
1053
1054                         QLA_UNLOCK(ha, __func__);
1055                 }
1056
1057                 break;
1058
1059         case SIOCSIFFLAGS:
1060                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFFLAGS (0x%lx)\n",
1061                         __func__, cmd));
1062
1063                 ret = QLA_LOCK(ha, __func__, QLA_LOCK_DEFAULT_MS_TIMEOUT,
1064                                 QLA_LOCK_NO_SLEEP);
1065
1066                 if (ret)
1067                         break;
1068
1069                 if (ifp->if_flags & IFF_UP) {
1070
1071                         ha->max_frame_size = ifp->if_mtu +
1072                                         ETHER_HDR_LEN + ETHER_CRC_LEN;
1073                         qla_init_locked(ha);
1074
1075                         if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1076                                 if ((ifp->if_flags ^ ha->if_flags) &
1077                                         IFF_PROMISC) {
1078                                         ret = ql_set_promisc(ha);
1079                                 } else if ((ifp->if_flags ^ ha->if_flags) &
1080                                         IFF_ALLMULTI) {
1081                                         ret = ql_set_allmulti(ha);
1082                                 }
1083                         }
1084                 } else {
1085                         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1086                                 qla_stop(ha);
1087                         ha->if_flags = ifp->if_flags;
1088                 }
1089
1090                 QLA_UNLOCK(ha, __func__);
1091                 break;
1092
1093         case SIOCADDMULTI:
1094                 QL_DPRINT4(ha, (ha->pci_dev,
1095                         "%s: %s (0x%lx)\n", __func__, "SIOCADDMULTI", cmd));
1096
1097                 if (qla_set_multi(ha, 1))
1098                         ret = EINVAL;
1099                 break;
1100
1101         case SIOCDELMULTI:
1102                 QL_DPRINT4(ha, (ha->pci_dev,
1103                         "%s: %s (0x%lx)\n", __func__, "SIOCDELMULTI", cmd));
1104
1105                 if (qla_set_multi(ha, 0))
1106                         ret = EINVAL;
1107                 break;
1108
1109         case SIOCSIFMEDIA:
1110         case SIOCGIFMEDIA:
1111                 QL_DPRINT4(ha, (ha->pci_dev,
1112                         "%s: SIOCSIFMEDIA/SIOCGIFMEDIA (0x%lx)\n",
1113                         __func__, cmd));
1114                 ret = ifmedia_ioctl(ifp, ifr, &ha->media, cmd);
1115                 break;
1116
1117         case SIOCSIFCAP:
1118         {
1119                 int mask = ifr->ifr_reqcap ^ ifp->if_capenable;
1120
1121                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFCAP (0x%lx)\n",
1122                         __func__, cmd));
1123
1124                 if (mask & IFCAP_HWCSUM)
1125                         ifp->if_capenable ^= IFCAP_HWCSUM;
1126                 if (mask & IFCAP_TSO4)
1127                         ifp->if_capenable ^= IFCAP_TSO4;
1128                 if (mask & IFCAP_TSO6)
1129                         ifp->if_capenable ^= IFCAP_TSO6;
1130                 if (mask & IFCAP_VLAN_HWTAGGING)
1131                         ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
1132                 if (mask & IFCAP_VLAN_HWTSO)
1133                         ifp->if_capenable ^= IFCAP_VLAN_HWTSO;
1134                 if (mask & IFCAP_LRO)
1135                         ifp->if_capenable ^= IFCAP_LRO;
1136
1137                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1138                         ret = QLA_LOCK(ha, __func__, QLA_LOCK_DEFAULT_MS_TIMEOUT,
1139                                 QLA_LOCK_NO_SLEEP);
1140
1141                         if (ret)
1142                                 break;
1143
1144                         qla_init_locked(ha);
1145
1146                         QLA_UNLOCK(ha, __func__);
1147
1148                 }
1149                 VLAN_CAPABILITIES(ifp);
1150                 break;
1151         }
1152
1153         default:
1154                 QL_DPRINT4(ha, (ha->pci_dev, "%s: default (0x%lx)\n",
1155                         __func__, cmd));
1156                 ret = ether_ioctl(ifp, cmd, data);
1157                 break;
1158         }
1159
1160         return (ret);
1161 }
1162
1163 static int
1164 qla_media_change(struct ifnet *ifp)
1165 {
1166         qla_host_t *ha;
1167         struct ifmedia *ifm;
1168         int ret = 0;
1169
1170         ha = (qla_host_t *)ifp->if_softc;
1171
1172         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1173
1174         ifm = &ha->media;
1175
1176         if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
1177                 ret = EINVAL;
1178
1179         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1180
1181         return (ret);
1182 }
1183
1184 static void
1185 qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr)
1186 {
1187         qla_host_t *ha;
1188
1189         ha = (qla_host_t *)ifp->if_softc;
1190
1191         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1192
1193         ifmr->ifm_status = IFM_AVALID;
1194         ifmr->ifm_active = IFM_ETHER;
1195
1196         ql_update_link_state(ha);
1197         if (ha->hw.link_up) {
1198                 ifmr->ifm_status |= IFM_ACTIVE;
1199                 ifmr->ifm_active |= (IFM_FDX | qla_get_optics(ha));
1200         }
1201
1202         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit (%s)\n", __func__,\
1203                 (ha->hw.link_up ? "link_up" : "link_down")));
1204
1205         return;
1206 }
1207
1208
1209 static int
1210 qla_send(qla_host_t *ha, struct mbuf **m_headp, uint32_t txr_idx,
1211         uint32_t iscsi_pdu)
1212 {
1213         bus_dma_segment_t       segs[QLA_MAX_SEGMENTS];
1214         bus_dmamap_t            map;
1215         int                     nsegs;
1216         int                     ret = -1;
1217         uint32_t                tx_idx;
1218         struct mbuf             *m_head = *m_headp;
1219
1220         QL_DPRINT8(ha, (ha->pci_dev, "%s: enter\n", __func__));
1221
1222         tx_idx = ha->hw.tx_cntxt[txr_idx].txr_next;
1223         map = ha->tx_ring[txr_idx].tx_buf[tx_idx].map;
1224
1225         ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head, segs, &nsegs,
1226                         BUS_DMA_NOWAIT);
1227
1228         if (ret == EFBIG) {
1229
1230                 struct mbuf *m;
1231
1232                 QL_DPRINT8(ha, (ha->pci_dev, "%s: EFBIG [%d]\n", __func__,
1233                         m_head->m_pkthdr.len));
1234
1235                 m = m_defrag(m_head, M_NOWAIT);
1236                 if (m == NULL) {
1237                         ha->err_tx_defrag++;
1238                         m_freem(m_head);
1239                         *m_headp = NULL;
1240                         device_printf(ha->pci_dev,
1241                                 "%s: m_defrag() = NULL [%d]\n",
1242                                 __func__, ret);
1243                         return (ENOBUFS);
1244                 }
1245                 m_head = m;
1246                 *m_headp = m_head;
1247
1248                 if ((ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head,
1249                                         segs, &nsegs, BUS_DMA_NOWAIT))) {
1250
1251                         ha->err_tx_dmamap_load++;
1252
1253                         device_printf(ha->pci_dev,
1254                                 "%s: bus_dmamap_load_mbuf_sg failed0[%d, %d]\n",
1255                                 __func__, ret, m_head->m_pkthdr.len);
1256
1257                         if (ret != ENOMEM) {
1258                                 m_freem(m_head);
1259                                 *m_headp = NULL;
1260                         }
1261                         return (ret);
1262                 }
1263
1264         } else if (ret) {
1265
1266                 ha->err_tx_dmamap_load++;
1267
1268                 device_printf(ha->pci_dev,
1269                         "%s: bus_dmamap_load_mbuf_sg failed1[%d, %d]\n",
1270                         __func__, ret, m_head->m_pkthdr.len);
1271
1272                 if (ret != ENOMEM) {
1273                         m_freem(m_head);
1274                         *m_headp = NULL;
1275                 }
1276                 return (ret);
1277         }
1278
1279         QL_ASSERT(ha, (nsegs != 0), ("qla_send: empty packet"));
1280
1281         bus_dmamap_sync(ha->tx_tag, map, BUS_DMASYNC_PREWRITE);
1282
1283         if (!(ret = ql_hw_send(ha, segs, nsegs, tx_idx, m_head, txr_idx,
1284                                 iscsi_pdu))) {
1285                 ha->tx_ring[txr_idx].count++;
1286                 if (iscsi_pdu)
1287                         ha->tx_ring[txr_idx].iscsi_pkt_count++;
1288                 ha->tx_ring[txr_idx].tx_buf[tx_idx].m_head = m_head;
1289         } else {
1290                 bus_dmamap_unload(ha->tx_tag, map);
1291                 if (ret == EINVAL) {
1292                         if (m_head)
1293                                 m_freem(m_head);
1294                         *m_headp = NULL;
1295                 }
1296         }
1297
1298         QL_DPRINT8(ha, (ha->pci_dev, "%s: exit\n", __func__));
1299         return (ret);
1300 }
1301
1302 static int
1303 qla_alloc_tx_br(qla_host_t *ha, qla_tx_fp_t *fp)
1304 {
1305         snprintf(fp->tx_mtx_name, sizeof(fp->tx_mtx_name),
1306                 "qla%d_fp%d_tx_mq_lock", ha->pci_func, fp->txr_idx);
1307
1308         mtx_init(&fp->tx_mtx, fp->tx_mtx_name, NULL, MTX_DEF);
1309
1310         fp->tx_br = buf_ring_alloc(NUM_TX_DESCRIPTORS, M_DEVBUF,
1311                                    M_NOWAIT, &fp->tx_mtx);
1312         if (fp->tx_br == NULL) {
1313             QL_DPRINT1(ha, (ha->pci_dev, "buf_ring_alloc failed for "
1314                 " fp[%d, %d]\n", ha->pci_func, fp->txr_idx));
1315             return (-ENOMEM);
1316         }
1317         return 0;
1318 }
1319
1320 static void
1321 qla_free_tx_br(qla_host_t *ha, qla_tx_fp_t *fp)
1322 {
1323         struct mbuf *mp;
1324         struct ifnet *ifp = ha->ifp;
1325
1326         if (mtx_initialized(&fp->tx_mtx)) {
1327
1328                 if (fp->tx_br != NULL) {
1329
1330                         mtx_lock(&fp->tx_mtx);
1331
1332                         while ((mp = drbr_dequeue(ifp, fp->tx_br)) != NULL) {
1333                                 m_freem(mp);
1334                         }
1335
1336                         mtx_unlock(&fp->tx_mtx);
1337
1338                         buf_ring_free(fp->tx_br, M_DEVBUF);
1339                         fp->tx_br = NULL;
1340                 }
1341                 mtx_destroy(&fp->tx_mtx);
1342         }
1343         return;
1344 }
1345
1346 static void
1347 qla_fp_taskqueue(void *context, int pending)
1348 {
1349         qla_tx_fp_t *fp;
1350         qla_host_t *ha;
1351         struct ifnet *ifp;
1352         struct mbuf  *mp;
1353         int ret;
1354         uint32_t txr_idx;
1355         uint32_t iscsi_pdu = 0;
1356         uint32_t rx_pkts_left = -1;
1357
1358         fp = context;
1359
1360         if (fp == NULL)
1361                 return;
1362
1363         ha = (qla_host_t *)fp->ha;
1364
1365         ifp = ha->ifp;
1366
1367         txr_idx = fp->txr_idx;
1368
1369         mtx_lock(&fp->tx_mtx);
1370
1371         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING) || (!ha->hw.link_up)) {
1372                 mtx_unlock(&fp->tx_mtx);
1373                 goto qla_fp_taskqueue_exit;
1374         }
1375
1376         while (rx_pkts_left && !ha->stop_rcv &&
1377                 (ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1378                 rx_pkts_left = ql_rcv_isr(ha, fp->txr_idx, 64);
1379
1380 #ifdef QL_ENABLE_ISCSI_TLV
1381                 ql_hw_tx_done_locked(ha, fp->txr_idx);
1382                 ql_hw_tx_done_locked(ha, (fp->txr_idx + (ha->hw.num_tx_rings >> 1)));
1383 #else
1384                 ql_hw_tx_done_locked(ha, fp->txr_idx);
1385 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
1386
1387                 mp = drbr_peek(ifp, fp->tx_br);
1388
1389                 while (mp != NULL) {
1390
1391                         if (M_HASHTYPE_GET(mp) != M_HASHTYPE_NONE) {
1392 #ifdef QL_ENABLE_ISCSI_TLV
1393                                 if (ql_iscsi_pdu(ha, mp) == 0) {
1394                                         txr_idx = txr_idx +
1395                                                 (ha->hw.num_tx_rings >> 1);
1396                                         iscsi_pdu = 1;
1397                                 } else {
1398                                         iscsi_pdu = 0;
1399                                         txr_idx = fp->txr_idx;
1400                                 }
1401 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
1402                         }
1403
1404                         ret = qla_send(ha, &mp, txr_idx, iscsi_pdu);
1405
1406                         if (ret) {
1407                                 if (mp != NULL)
1408                                         drbr_putback(ifp, fp->tx_br, mp);
1409                                 else {
1410                                         drbr_advance(ifp, fp->tx_br);
1411                                 }
1412
1413                                 mtx_unlock(&fp->tx_mtx);
1414
1415                                 goto qla_fp_taskqueue_exit0;
1416                         } else {
1417                                 drbr_advance(ifp, fp->tx_br);
1418                         }
1419
1420                         /* Send a copy of the frame to the BPF listener */
1421                         ETHER_BPF_MTAP(ifp, mp);
1422                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
1423                                 break;
1424
1425                         mp = drbr_peek(ifp, fp->tx_br);
1426                 }
1427         }
1428         mtx_unlock(&fp->tx_mtx);
1429
1430 qla_fp_taskqueue_exit0:
1431
1432         if (rx_pkts_left || ((mp != NULL) && ret)) {
1433                 taskqueue_enqueue(fp->fp_taskqueue, &fp->fp_task);
1434         } else {
1435                 if (!ha->stop_rcv) {
1436                         QL_ENABLE_INTERRUPTS(ha, fp->txr_idx);
1437                 }
1438         }
1439
1440 qla_fp_taskqueue_exit:
1441
1442         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit ret = %d\n", __func__, ret));
1443         return;
1444 }
1445
1446 static int
1447 qla_create_fp_taskqueues(qla_host_t *ha)
1448 {
1449         int     i;
1450         uint8_t tq_name[32];
1451
1452         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1453
1454                 qla_tx_fp_t *fp = &ha->tx_fp[i];
1455
1456                 bzero(tq_name, sizeof (tq_name));
1457                 snprintf(tq_name, sizeof (tq_name), "ql_fp_tq_%d", i);
1458
1459                 TASK_INIT(&fp->fp_task, 0, qla_fp_taskqueue, fp);
1460
1461                 fp->fp_taskqueue = taskqueue_create_fast(tq_name, M_NOWAIT,
1462                                         taskqueue_thread_enqueue,
1463                                         &fp->fp_taskqueue);
1464
1465                 if (fp->fp_taskqueue == NULL)
1466                         return (-1);
1467
1468                 taskqueue_start_threads(&fp->fp_taskqueue, 1, PI_NET, "%s",
1469                         tq_name);
1470
1471                 QL_DPRINT1(ha, (ha->pci_dev, "%s: %p\n", __func__,
1472                         fp->fp_taskqueue));
1473         }
1474
1475         return (0);
1476 }
1477
1478 static void
1479 qla_destroy_fp_taskqueues(qla_host_t *ha)
1480 {
1481         int     i;
1482
1483         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1484
1485                 qla_tx_fp_t *fp = &ha->tx_fp[i];
1486
1487                 if (fp->fp_taskqueue != NULL) {
1488                         taskqueue_drain(fp->fp_taskqueue, &fp->fp_task);
1489                         taskqueue_free(fp->fp_taskqueue);
1490                         fp->fp_taskqueue = NULL;
1491                 }
1492         }
1493         return;
1494 }
1495
1496 static void
1497 qla_drain_fp_taskqueues(qla_host_t *ha)
1498 {
1499         int     i;
1500
1501         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1502                 qla_tx_fp_t *fp = &ha->tx_fp[i];
1503
1504                 if (fp->fp_taskqueue != NULL) {
1505                         taskqueue_drain(fp->fp_taskqueue, &fp->fp_task);
1506                 }
1507         }
1508         return;
1509 }
1510
1511 static int
1512 qla_transmit(struct ifnet *ifp, struct mbuf  *mp)
1513 {
1514         qla_host_t *ha = (qla_host_t *)ifp->if_softc;
1515         qla_tx_fp_t *fp;
1516         int rss_id = 0;
1517         int ret = 0;
1518
1519         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1520
1521 #if __FreeBSD_version >= 1100000
1522         if (M_HASHTYPE_GET(mp) != M_HASHTYPE_NONE)
1523 #else
1524         if (mp->m_flags & M_FLOWID)
1525 #endif
1526                 rss_id = (mp->m_pkthdr.flowid & Q8_RSS_IND_TBL_MAX_IDX) %
1527                                         ha->hw.num_sds_rings;
1528         fp = &ha->tx_fp[rss_id];
1529
1530         if (fp->tx_br == NULL) {
1531                 ret = EINVAL;
1532                 goto qla_transmit_exit;
1533         }
1534
1535         if (mp != NULL) {
1536                 ret = drbr_enqueue(ifp, fp->tx_br, mp);
1537         }
1538
1539         if (fp->fp_taskqueue != NULL)
1540                 taskqueue_enqueue(fp->fp_taskqueue, &fp->fp_task);
1541
1542         ret = 0;
1543
1544 qla_transmit_exit:
1545
1546         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit ret = %d\n", __func__, ret));
1547         return ret;
1548 }
1549
1550 static void
1551 qla_qflush(struct ifnet *ifp)
1552 {
1553         int                     i;
1554         qla_tx_fp_t             *fp;
1555         struct mbuf             *mp;
1556         qla_host_t              *ha;
1557
1558         ha = (qla_host_t *)ifp->if_softc;
1559
1560         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1561
1562         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1563
1564                 fp = &ha->tx_fp[i];
1565
1566                 if (fp == NULL)
1567                         continue;
1568
1569                 if (fp->tx_br) {
1570                         mtx_lock(&fp->tx_mtx);
1571
1572                         while ((mp = drbr_dequeue(ifp, fp->tx_br)) != NULL) {
1573                                 m_freem(mp);
1574                         }
1575                         mtx_unlock(&fp->tx_mtx);
1576                 }
1577         }
1578         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1579
1580         return;
1581 }
1582
1583 static void
1584 qla_stop(qla_host_t *ha)
1585 {
1586         struct ifnet *ifp = ha->ifp;
1587         device_t        dev;
1588         int i = 0;
1589
1590         dev = ha->pci_dev;
1591
1592         ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1593         ha->qla_watchdog_pause = 1;
1594
1595         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1596                 qla_tx_fp_t *fp;
1597
1598                 fp = &ha->tx_fp[i];
1599
1600                 if (fp == NULL)
1601                         continue;
1602
1603                 if (fp->tx_br != NULL) {
1604                         mtx_lock(&fp->tx_mtx);
1605                         mtx_unlock(&fp->tx_mtx);
1606                 }
1607         }
1608
1609         while (!ha->qla_watchdog_paused)
1610                 qla_mdelay(__func__, 1);
1611
1612         ha->qla_interface_up = 0;
1613
1614         qla_drain_fp_taskqueues(ha);
1615
1616         ql_del_hw_if(ha);
1617
1618         qla_free_xmt_bufs(ha);
1619         qla_free_rcv_bufs(ha);
1620
1621         return;
1622 }
1623
1624 /*
1625  * Buffer Management Functions for Transmit and Receive Rings
1626  */
1627 static int
1628 qla_alloc_xmt_bufs(qla_host_t *ha)
1629 {
1630         int ret = 0;
1631         uint32_t i, j;
1632         qla_tx_buf_t *txb;
1633
1634         if (bus_dma_tag_create(NULL,    /* parent */
1635                 1, 0,    /* alignment, bounds */
1636                 BUS_SPACE_MAXADDR,       /* lowaddr */
1637                 BUS_SPACE_MAXADDR,       /* highaddr */
1638                 NULL, NULL,      /* filter, filterarg */
1639                 QLA_MAX_TSO_FRAME_SIZE,     /* maxsize */
1640                 QLA_MAX_SEGMENTS,        /* nsegments */
1641                 PAGE_SIZE,        /* maxsegsize */
1642                 BUS_DMA_ALLOCNOW,        /* flags */
1643                 NULL,    /* lockfunc */
1644                 NULL,    /* lockfuncarg */
1645                 &ha->tx_tag)) {
1646                 device_printf(ha->pci_dev, "%s: tx_tag alloc failed\n",
1647                         __func__);
1648                 return (ENOMEM);
1649         }
1650
1651         for (i = 0; i < ha->hw.num_tx_rings; i++) {
1652                 bzero((void *)ha->tx_ring[i].tx_buf,
1653                         (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1654         }
1655
1656         for (j = 0; j < ha->hw.num_tx_rings; j++) {
1657                 for (i = 0; i < NUM_TX_DESCRIPTORS; i++) {
1658
1659                         txb = &ha->tx_ring[j].tx_buf[i];
1660
1661                         if ((ret = bus_dmamap_create(ha->tx_tag,
1662                                         BUS_DMA_NOWAIT, &txb->map))) {
1663
1664                                 ha->err_tx_dmamap_create++;
1665                                 device_printf(ha->pci_dev,
1666                                         "%s: bus_dmamap_create failed[%d]\n",
1667                                         __func__, ret);
1668
1669                                 qla_free_xmt_bufs(ha);
1670
1671                                 return (ret);
1672                         }
1673                 }
1674         }
1675
1676         return 0;
1677 }
1678
1679 /*
1680  * Release mbuf after it sent on the wire
1681  */
1682 static void
1683 qla_clear_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb)
1684 {
1685         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1686
1687         if (txb->m_head) {
1688                 bus_dmamap_sync(ha->tx_tag, txb->map,
1689                         BUS_DMASYNC_POSTWRITE);
1690
1691                 bus_dmamap_unload(ha->tx_tag, txb->map);
1692
1693                 m_freem(txb->m_head);
1694                 txb->m_head = NULL;
1695
1696                 bus_dmamap_destroy(ha->tx_tag, txb->map);
1697                 txb->map = NULL;
1698         }
1699
1700         if (txb->map) {
1701                 bus_dmamap_unload(ha->tx_tag, txb->map);
1702                 bus_dmamap_destroy(ha->tx_tag, txb->map);
1703                 txb->map = NULL;
1704         }
1705
1706         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1707 }
1708
1709 static void
1710 qla_free_xmt_bufs(qla_host_t *ha)
1711 {
1712         int             i, j;
1713
1714         for (j = 0; j < ha->hw.num_tx_rings; j++) {
1715                 for (i = 0; i < NUM_TX_DESCRIPTORS; i++)
1716                         qla_clear_tx_buf(ha, &ha->tx_ring[j].tx_buf[i]);
1717         }
1718
1719         if (ha->tx_tag != NULL) {
1720                 bus_dma_tag_destroy(ha->tx_tag);
1721                 ha->tx_tag = NULL;
1722         }
1723
1724         for (i = 0; i < ha->hw.num_tx_rings; i++) {
1725                 bzero((void *)ha->tx_ring[i].tx_buf,
1726                         (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1727         }
1728         return;
1729 }
1730
1731
1732 static int
1733 qla_alloc_rcv_std(qla_host_t *ha)
1734 {
1735         int             i, j, k, r, ret = 0;
1736         qla_rx_buf_t    *rxb;
1737         qla_rx_ring_t   *rx_ring;
1738
1739         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1740
1741                 rx_ring = &ha->rx_ring[r];
1742
1743                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1744
1745                         rxb = &rx_ring->rx_buf[i];
1746
1747                         ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT,
1748                                         &rxb->map);
1749
1750                         if (ret) {
1751                                 device_printf(ha->pci_dev,
1752                                         "%s: dmamap[%d, %d] failed\n",
1753                                         __func__, r, i);
1754
1755                                 for (k = 0; k < r; k++) {
1756                                         for (j = 0; j < NUM_RX_DESCRIPTORS;
1757                                                 j++) {
1758                                                 rxb = &ha->rx_ring[k].rx_buf[j];
1759                                                 bus_dmamap_destroy(ha->rx_tag,
1760                                                         rxb->map);
1761                                         }
1762                                 }
1763
1764                                 for (j = 0; j < i; j++) {
1765                                         bus_dmamap_destroy(ha->rx_tag,
1766                                                 rx_ring->rx_buf[j].map);
1767                                 }
1768                                 goto qla_alloc_rcv_std_err;
1769                         }
1770                 }
1771         }
1772
1773         qla_init_hw_rcv_descriptors(ha);
1774
1775
1776         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1777
1778                 rx_ring = &ha->rx_ring[r];
1779
1780                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1781                         rxb = &rx_ring->rx_buf[i];
1782                         rxb->handle = i;
1783                         if (!(ret = ql_get_mbuf(ha, rxb, NULL))) {
1784                                 /*
1785                                  * set the physical address in the
1786                                  * corresponding descriptor entry in the
1787                                  * receive ring/queue for the hba
1788                                  */
1789                                 qla_set_hw_rcv_desc(ha, r, i, rxb->handle,
1790                                         rxb->paddr,
1791                                         (rxb->m_head)->m_pkthdr.len);
1792                         } else {
1793                                 device_printf(ha->pci_dev,
1794                                         "%s: ql_get_mbuf [%d, %d] failed\n",
1795                                         __func__, r, i);
1796                                 bus_dmamap_destroy(ha->rx_tag, rxb->map);
1797                                 goto qla_alloc_rcv_std_err;
1798                         }
1799                 }
1800         }
1801         return 0;
1802
1803 qla_alloc_rcv_std_err:
1804         return (-1);
1805 }
1806
1807 static void
1808 qla_free_rcv_std(qla_host_t *ha)
1809 {
1810         int             i, r;
1811         qla_rx_buf_t    *rxb;
1812
1813         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1814                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1815                         rxb = &ha->rx_ring[r].rx_buf[i];
1816                         if (rxb->m_head != NULL) {
1817                                 bus_dmamap_unload(ha->rx_tag, rxb->map);
1818                                 bus_dmamap_destroy(ha->rx_tag, rxb->map);
1819                                 m_freem(rxb->m_head);
1820                                 rxb->m_head = NULL;
1821                         }
1822                 }
1823         }
1824         return;
1825 }
1826
1827 static int
1828 qla_alloc_rcv_bufs(qla_host_t *ha)
1829 {
1830         int             i, ret = 0;
1831
1832         if (bus_dma_tag_create(NULL,    /* parent */
1833                         1, 0,    /* alignment, bounds */
1834                         BUS_SPACE_MAXADDR,       /* lowaddr */
1835                         BUS_SPACE_MAXADDR,       /* highaddr */
1836                         NULL, NULL,      /* filter, filterarg */
1837                         MJUM9BYTES,     /* maxsize */
1838                         1,        /* nsegments */
1839                         MJUM9BYTES,        /* maxsegsize */
1840                         BUS_DMA_ALLOCNOW,        /* flags */
1841                         NULL,    /* lockfunc */
1842                         NULL,    /* lockfuncarg */
1843                         &ha->rx_tag)) {
1844
1845                 device_printf(ha->pci_dev, "%s: rx_tag alloc failed\n",
1846                         __func__);
1847
1848                 return (ENOMEM);
1849         }
1850
1851         bzero((void *)ha->rx_ring, (sizeof(qla_rx_ring_t) * MAX_RDS_RINGS));
1852
1853         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1854                 ha->hw.sds[i].sdsr_next = 0;
1855                 ha->hw.sds[i].rxb_free = NULL;
1856                 ha->hw.sds[i].rx_free = 0;
1857         }
1858
1859         ret = qla_alloc_rcv_std(ha);
1860
1861         return (ret);
1862 }
1863
1864 static void
1865 qla_free_rcv_bufs(qla_host_t *ha)
1866 {
1867         int             i;
1868
1869         qla_free_rcv_std(ha);
1870
1871         if (ha->rx_tag != NULL) {
1872                 bus_dma_tag_destroy(ha->rx_tag);
1873                 ha->rx_tag = NULL;
1874         }
1875
1876         bzero((void *)ha->rx_ring, (sizeof(qla_rx_ring_t) * MAX_RDS_RINGS));
1877
1878         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1879                 ha->hw.sds[i].sdsr_next = 0;
1880                 ha->hw.sds[i].rxb_free = NULL;
1881                 ha->hw.sds[i].rx_free = 0;
1882         }
1883
1884         return;
1885 }
1886
1887 int
1888 ql_get_mbuf(qla_host_t *ha, qla_rx_buf_t *rxb, struct mbuf *nmp)
1889 {
1890         register struct mbuf *mp = nmp;
1891         struct ifnet            *ifp;
1892         int                     ret = 0;
1893         uint32_t                offset;
1894         bus_dma_segment_t       segs[1];
1895         int                     nsegs, mbuf_size;
1896
1897         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1898
1899         ifp = ha->ifp;
1900
1901         if (ha->hw.enable_9kb)
1902                 mbuf_size = MJUM9BYTES;
1903         else
1904                 mbuf_size = MCLBYTES;
1905
1906         if (mp == NULL) {
1907
1908                 if (QL_ERR_INJECT(ha, INJCT_M_GETCL_M_GETJCL_FAILURE))
1909                         return(-1);
1910
1911                 if (ha->hw.enable_9kb)
1912                         mp = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, mbuf_size);
1913                 else
1914                         mp = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1915
1916                 if (mp == NULL) {
1917                         ha->err_m_getcl++;
1918                         ret = ENOBUFS;
1919                         device_printf(ha->pci_dev,
1920                                         "%s: m_getcl failed\n", __func__);
1921                         goto exit_ql_get_mbuf;
1922                 }
1923                 mp->m_len = mp->m_pkthdr.len = mbuf_size;
1924         } else {
1925                 mp->m_len = mp->m_pkthdr.len = mbuf_size;
1926                 mp->m_data = mp->m_ext.ext_buf;
1927                 mp->m_next = NULL;
1928         }
1929
1930         offset = (uint32_t)((unsigned long long)mp->m_data & 0x7ULL);
1931         if (offset) {
1932                 offset = 8 - offset;
1933                 m_adj(mp, offset);
1934         }
1935
1936         /*
1937          * Using memory from the mbuf cluster pool, invoke the bus_dma
1938          * machinery to arrange the memory mapping.
1939          */
1940         ret = bus_dmamap_load_mbuf_sg(ha->rx_tag, rxb->map,
1941                         mp, segs, &nsegs, BUS_DMA_NOWAIT);
1942         rxb->paddr = segs[0].ds_addr;
1943
1944         if (ret || !rxb->paddr || (nsegs != 1)) {
1945                 m_free(mp);
1946                 rxb->m_head = NULL;
1947                 device_printf(ha->pci_dev,
1948                         "%s: bus_dmamap_load failed[%d, 0x%016llx, %d]\n",
1949                         __func__, ret, (long long unsigned int)rxb->paddr,
1950                         nsegs);
1951                 ret = -1;
1952                 goto exit_ql_get_mbuf;
1953         }
1954         rxb->m_head = mp;
1955         bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_PREREAD);
1956
1957 exit_ql_get_mbuf:
1958         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit ret = 0x%08x\n", __func__, ret));
1959         return (ret);
1960 }
1961
1962
1963 static void
1964 qla_get_peer(qla_host_t *ha)
1965 {
1966         device_t *peers;
1967         int count, i, slot;
1968         int my_slot = pci_get_slot(ha->pci_dev);
1969
1970         if (device_get_children(device_get_parent(ha->pci_dev), &peers, &count))
1971                 return;
1972
1973         for (i = 0; i < count; i++) {
1974                 slot = pci_get_slot(peers[i]);
1975
1976                 if ((slot >= 0) && (slot == my_slot) &&
1977                         (pci_get_device(peers[i]) ==
1978                                 pci_get_device(ha->pci_dev))) {
1979                         if (ha->pci_dev != peers[i])
1980                                 ha->peer_dev = peers[i];
1981                 }
1982         }
1983 }
1984
1985 static void
1986 qla_send_msg_to_peer(qla_host_t *ha, uint32_t msg_to_peer)
1987 {
1988         qla_host_t *ha_peer;
1989
1990         if (ha->peer_dev) {
1991                 if ((ha_peer = device_get_softc(ha->peer_dev)) != NULL) {
1992
1993                         ha_peer->msg_from_peer = msg_to_peer;
1994                 }
1995         }
1996 }
1997
1998 static void
1999 qla_error_recovery(void *context, int pending)
2000 {
2001         qla_host_t *ha = context;
2002         uint32_t msecs_100 = 100;
2003         struct ifnet *ifp = ha->ifp;
2004         int i = 0;
2005
2006 device_printf(ha->pci_dev, "%s: \n", __func__);
2007         ha->hw.imd_compl = 1;
2008
2009         if (QLA_LOCK(ha, __func__, -1, 0) != 0)
2010                 return;
2011
2012 device_printf(ha->pci_dev, "%s: enter\n", __func__);
2013
2014         if (ha->qla_interface_up) {
2015
2016                 qla_mdelay(__func__, 300);
2017
2018                 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
2019
2020                 for (i = 0; i < ha->hw.num_sds_rings; i++) {
2021                         qla_tx_fp_t *fp;
2022
2023                         fp = &ha->tx_fp[i];
2024
2025                         if (fp == NULL)
2026                                 continue;
2027
2028                         if (fp->tx_br != NULL) {
2029                                 mtx_lock(&fp->tx_mtx);
2030                                 mtx_unlock(&fp->tx_mtx);
2031                         }
2032                 }
2033         }
2034
2035
2036         qla_drain_fp_taskqueues(ha);
2037
2038         if ((ha->pci_func & 0x1) == 0) {
2039
2040                 if (!ha->msg_from_peer) {
2041                         qla_send_msg_to_peer(ha, QL_PEER_MSG_RESET);
2042
2043                         while ((ha->msg_from_peer != QL_PEER_MSG_ACK) &&
2044                                 msecs_100--)
2045                                 qla_mdelay(__func__, 100);
2046                 }
2047
2048                 ha->msg_from_peer = 0;
2049
2050                 if (ha->enable_minidump)
2051                         ql_minidump(ha);
2052
2053                 (void) ql_init_hw(ha);
2054
2055                 if (ha->qla_interface_up) {
2056                         qla_free_xmt_bufs(ha);
2057                         qla_free_rcv_bufs(ha);
2058                 }
2059
2060                 qla_send_msg_to_peer(ha, QL_PEER_MSG_ACK);
2061
2062         } else {
2063                 if (ha->msg_from_peer == QL_PEER_MSG_RESET) {
2064
2065                         ha->msg_from_peer = 0;
2066
2067                         qla_send_msg_to_peer(ha, QL_PEER_MSG_ACK);
2068                 } else {
2069                         qla_send_msg_to_peer(ha, QL_PEER_MSG_RESET);
2070                 }
2071
2072                 while ((ha->msg_from_peer != QL_PEER_MSG_ACK)  && msecs_100--)
2073                         qla_mdelay(__func__, 100);
2074                 ha->msg_from_peer = 0;
2075
2076                 (void) ql_init_hw(ha);
2077
2078                 qla_mdelay(__func__, 1000);
2079
2080                 if (ha->qla_interface_up) {
2081                         qla_free_xmt_bufs(ha);
2082                         qla_free_rcv_bufs(ha);
2083                 }
2084         }
2085
2086         if (ha->qla_interface_up) {
2087
2088                 if (qla_alloc_xmt_bufs(ha) != 0) {
2089                         goto qla_error_recovery_exit;
2090                 }
2091                 qla_confirm_9kb_enable(ha);
2092
2093                 if (qla_alloc_rcv_bufs(ha) != 0) {
2094                         goto qla_error_recovery_exit;
2095                 }
2096
2097                 ha->stop_rcv = 0;
2098
2099                 if (ql_init_hw_if(ha) == 0) {
2100                         ifp = ha->ifp;
2101                         ifp->if_drv_flags |= IFF_DRV_RUNNING;
2102                         ha->qla_watchdog_pause = 0;
2103                 }
2104         } else
2105                 ha->qla_watchdog_pause = 0;
2106
2107 qla_error_recovery_exit:
2108
2109 device_printf(ha->pci_dev, "%s: exit\n", __func__);
2110
2111         QLA_UNLOCK(ha, __func__);
2112
2113         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
2114                 qla_watchdog, ha);
2115         return;
2116 }
2117
2118 static void
2119 qla_async_event(void *context, int pending)
2120 {
2121         qla_host_t *ha = context;
2122
2123         if (QLA_LOCK(ha, __func__, -1, 0) != 0)
2124                 return;
2125
2126         if (ha->async_event) {
2127                 ha->async_event = 0;
2128                 qla_hw_async_event(ha);
2129         }
2130
2131         QLA_UNLOCK(ha, __func__);
2132
2133         return;
2134 }
2135
2136 static void
2137 qla_stats(void *context, int pending)
2138 {
2139         qla_host_t *ha;
2140
2141         ha = context;
2142
2143         ql_get_stats(ha);
2144         return;
2145 }
2146