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