sys/dev/qlxgbe/ql_os.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2013-2016 Qlogic Corporation
   5  * All rights reserved.
   6  *
   7  *  Redistribution and use in source and binary forms, with or without
   8  *  modification, are permitted provided that the following conditions
   9  *  are met:
  10  *
  11  *  1. Redistributions of source code must retain the above copyright
  12  *     notice, this list of conditions and the following disclaimer.
  13  *  2. Redistributions in binary form must reproduce the above copyright
  14  *     notice, this list of conditions and the following disclaimer in the
  15  *     documentation and/or other materials provided with the distribution.
  16  *
  17  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  18  *  and ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  21  *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  22  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  23  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  25  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  26  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  27  *  POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 /*
  31  * File: ql_os.c
  32  * Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 __FBSDID("$FreeBSD$");
  37
  38
  39 #include "ql_os.h"
  40 #include "ql_hw.h"
  41 #include "ql_def.h"
  42 #include "ql_inline.h"
  43 #include "ql_ver.h"
  44 #include "ql_glbl.h"
  45 #include "ql_dbg.h"
  46 #include <sys/smp.h>
  47
  48 /*
  49  * Some PCI Configuration Space Related Defines
  50  */
  51
  52 #ifndef PCI_VENDOR_QLOGIC
  53 #define PCI_VENDOR_QLOGIC       0x1077
  54 #endif
  55
  56 #ifndef PCI_PRODUCT_QLOGIC_ISP8030
  57 #define PCI_PRODUCT_QLOGIC_ISP8030      0x8030
  58 #endif
  59
  60 #define PCI_QLOGIC_ISP8030 \
  61         ((PCI_PRODUCT_QLOGIC_ISP8030 << 16) | PCI_VENDOR_QLOGIC)
  62
  63 /*
  64  * static functions
  65  */
  66 static int qla_alloc_parent_dma_tag(qla_host_t *ha);
  67 static void qla_free_parent_dma_tag(qla_host_t *ha);
  68 static int qla_alloc_xmt_bufs(qla_host_t *ha);
  69 static void qla_free_xmt_bufs(qla_host_t *ha);
  70 static int qla_alloc_rcv_bufs(qla_host_t *ha);
  71 static void qla_free_rcv_bufs(qla_host_t *ha);
  72 static void qla_clear_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb);
  73
  74 static void qla_init_ifnet(device_t dev, qla_host_t *ha);
  75 static int qla_sysctl_get_link_status(SYSCTL_HANDLER_ARGS);
  76 static void qla_release(qla_host_t *ha);
  77 static void qla_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs,
  78                 int error);
  79 static void qla_stop(qla_host_t *ha);
  80 static void qla_get_peer(qla_host_t *ha);
  81 static void qla_error_recovery(void *context, int pending);
  82 static void qla_async_event(void *context, int pending);
  83 static void qla_stats(void *context, int pending);
  84 static int qla_send(qla_host_t *ha, struct mbuf **m_headp, uint32_t txr_idx,
  85                 uint32_t iscsi_pdu);
  86
  87 /*
  88  * Hooks to the Operating Systems
  89  */
  90 static int qla_pci_probe (device_t);
  91 static int qla_pci_attach (device_t);
  92 static int qla_pci_detach (device_t);
  93
  94 static void qla_init(void *arg);
  95 static int qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data);
  96 static int qla_media_change(struct ifnet *ifp);
  97 static void qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr);
  98
  99 static int qla_transmit(struct ifnet *ifp, struct mbuf  *mp);
 100 static void qla_qflush(struct ifnet *ifp);
 101 static int qla_alloc_tx_br(qla_host_t *ha, qla_tx_fp_t *tx_fp);
 102 static void qla_free_tx_br(qla_host_t *ha, qla_tx_fp_t *tx_fp);
 103 static int qla_create_fp_taskqueues(qla_host_t *ha);
 104 static void qla_destroy_fp_taskqueues(qla_host_t *ha);
 105 static void qla_drain_fp_taskqueues(qla_host_t *ha);
 106
 107 static device_method_t qla_pci_methods[] = {
 108         /* Device interface */
 109         DEVMETHOD(device_probe, qla_pci_probe),
 110         DEVMETHOD(device_attach, qla_pci_attach),
 111         DEVMETHOD(device_detach, qla_pci_detach),
 112         { 0, 0 }
 113 };
 114
 115 static driver_t qla_pci_driver = {
 116         "ql", qla_pci_methods, sizeof (qla_host_t),
 117 };
 118
 119 static devclass_t qla83xx_devclass;
 120
 121 DRIVER_MODULE(qla83xx, pci, qla_pci_driver, qla83xx_devclass, 0, 0);
 122
 123 MODULE_DEPEND(qla83xx, pci, 1, 1, 1);
 124 MODULE_DEPEND(qla83xx, ether, 1, 1, 1);
 125
 126 MALLOC_DEFINE(M_QLA83XXBUF, "qla83xxbuf", "Buffers for qla83xx driver");
 127
 128 #define QL_STD_REPLENISH_THRES          0
 129 #define QL_JUMBO_REPLENISH_THRES        32
 130
 131
 132 static char dev_str[64];
 133 static char ver_str[64];
 134
 135 /*
 136  * Name:        qla_pci_probe
 137  * Function:    Validate the PCI device to be a QLA80XX device
 138  */
 139 static int
 140 qla_pci_probe(device_t dev)
 141 {
 142         switch ((pci_get_device(dev) << 16) | (pci_get_vendor(dev))) {
 143         case PCI_QLOGIC_ISP8030:
 144                 snprintf(dev_str, sizeof(dev_str), "%s v%d.%d.%d",
 145                         "Qlogic ISP 83xx PCI CNA Adapter-Ethernet Function",
 146                         QLA_VERSION_MAJOR, QLA_VERSION_MINOR,
 147                         QLA_VERSION_BUILD);
 148                 snprintf(ver_str, sizeof(ver_str), "v%d.%d.%d",
 149                         QLA_VERSION_MAJOR, QLA_VERSION_MINOR,
 150                         QLA_VERSION_BUILD);
 151                 device_set_desc(dev, dev_str);
 152                 break;
 153         default:
 154                 return (ENXIO);
 155         }
 156
 157         if (bootverbose)
 158                 printf("%s: %s\n ", __func__, dev_str);
 159
 160         return (BUS_PROBE_DEFAULT);
 161 }
 162
 163 static void
 164 qla_add_sysctls(qla_host_t *ha)
 165 {
 166         device_t dev = ha->pci_dev;
 167
 168         SYSCTL_ADD_STRING(device_get_sysctl_ctx(dev),
 169                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 170                 OID_AUTO, "version", CTLFLAG_RD,
 171                 ver_str, 0, "Driver Version");
 172
 173         SYSCTL_ADD_STRING(device_get_sysctl_ctx(dev),
 174                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 175                 OID_AUTO, "fw_version", CTLFLAG_RD,
 176                 ha->fw_ver_str, 0, "firmware version");
 177
 178         SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
 179                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 180                 OID_AUTO, "link_status", CTLTYPE_INT | CTLFLAG_RW,
 181                 (void *)ha, 0,
 182                 qla_sysctl_get_link_status, "I", "Link Status");
 183
 184         ha->dbg_level = 0;
 185         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 186                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 187                 OID_AUTO, "debug", CTLFLAG_RW,
 188                 &ha->dbg_level, ha->dbg_level, "Debug Level");
 189
 190         ha->enable_minidump = 1;
 191         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 192                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 193                 OID_AUTO, "enable_minidump", CTLFLAG_RW,
 194                 &ha->enable_minidump, ha->enable_minidump,
 195                 "Minidump retrival is enabled only when this is set");
 196
 197         ha->std_replenish = QL_STD_REPLENISH_THRES;
 198         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 199                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 200                 OID_AUTO, "std_replenish", CTLFLAG_RW,
 201                 &ha->std_replenish, ha->std_replenish,
 202                 "Threshold for Replenishing Standard Frames");
 203
 204         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 205                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 206                 OID_AUTO, "ipv4_lro",
 207                 CTLFLAG_RD, &ha->ipv4_lro,
 208                 "number of ipv4 lro completions");
 209
 210         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 211                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 212                 OID_AUTO, "ipv6_lro",
 213                 CTLFLAG_RD, &ha->ipv6_lro,
 214                 "number of ipv6 lro completions");
 215
 216         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 217                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 218                 OID_AUTO, "tx_tso_frames",
 219                 CTLFLAG_RD, &ha->tx_tso_frames,
 220                 "number of Tx TSO Frames");
 221
 222         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 223                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 224                 OID_AUTO, "hw_vlan_tx_frames",
 225                 CTLFLAG_RD, &ha->hw_vlan_tx_frames,
 226                 "number of Tx VLAN Frames");
 227
 228         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 229                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 230                 OID_AUTO, "hw_lock_failed",
 231                 CTLFLAG_RD, &ha->hw_lock_failed,
 232                 "number of hw_lock failures");
 233
 234         return;
 235 }
 236
 237 static void
 238 qla_watchdog(void *arg)
 239 {
 240         qla_host_t *ha = arg;
 241         qla_hw_t *hw;
 242         struct ifnet *ifp;
 243
 244         hw = &ha->hw;
 245         ifp = ha->ifp;
 246
 247         if (ha->qla_watchdog_exit) {
 248                 ha->qla_watchdog_exited = 1;
 249                 return;
 250         }
 251         ha->qla_watchdog_exited = 0;
 252
 253         if (!ha->qla_watchdog_pause) {
 254                 if (ql_hw_check_health(ha) || ha->qla_initiate_recovery ||
 255                         (ha->msg_from_peer == QL_PEER_MSG_RESET)) {
 256
 257                         if (!(ha->dbg_level & 0x8000)) {
 258                                 ha->qla_watchdog_paused = 1;
 259                                 ha->qla_watchdog_pause = 1;
 260                                 ha->qla_initiate_recovery = 0;
 261                                 ha->err_inject = 0;
 262                                 device_printf(ha->pci_dev,
 263                                         "%s: taskqueue_enqueue(err_task) \n",
 264                                         __func__);
 265                                 taskqueue_enqueue(ha->err_tq, &ha->err_task);
 266                                 return;
 267                         }
 268
 269                 } else if (ha->qla_interface_up) {
 270
 271                         ha->watchdog_ticks++;
 272
 273                         if (ha->watchdog_ticks > 1000)
 274                                 ha->watchdog_ticks = 0;
 275
 276                         if (!ha->watchdog_ticks && QL_RUNNING(ifp)) {
 277                                 taskqueue_enqueue(ha->stats_tq, &ha->stats_task);
 278                         }
 279
 280                         if (ha->async_event) {
 281                                 taskqueue_enqueue(ha->async_event_tq,
 282                                         &ha->async_event_task);
 283                         }
 284
 285 #if 0
 286                         for (i = 0; ((i < ha->hw.num_sds_rings) &&
 287                                         !ha->watchdog_ticks); i++) {
 288                                 qla_tx_fp_t *fp = &ha->tx_fp[i];
 289
 290                                 if (fp->fp_taskqueue != NULL)
 291                                         taskqueue_enqueue(fp->fp_taskqueue,
 292                                                 &fp->fp_task);
 293                         }
 294 #endif
 295                         ha->qla_watchdog_paused = 0;
 296                 } else {
 297                         ha->qla_watchdog_paused = 0;
 298                 }
 299         } else {
 300                 ha->qla_watchdog_paused = 1;
 301         }
 302
 303         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 304                 qla_watchdog, ha);
 305 }
 306
 307 /*
 308  * Name:        qla_pci_attach
 309  * Function:    attaches the device to the operating system
 310  */
 311 static int
 312 qla_pci_attach(device_t dev)
 313 {
 314         qla_host_t *ha = NULL;
 315         uint32_t rsrc_len;
 316         int i;
 317         uint32_t num_rcvq = 0;
 318
 319         if ((ha = device_get_softc(dev)) == NULL) {
 320                 device_printf(dev, "cannot get softc\n");
 321                 return (ENOMEM);
 322         }
 323
 324         memset(ha, 0, sizeof (qla_host_t));
 325
 326         if (pci_get_device(dev) != PCI_PRODUCT_QLOGIC_ISP8030) {
 327                 device_printf(dev, "device is not ISP8030\n");
 328                 return (ENXIO);
 329         }
 330
 331         ha->pci_func = pci_get_function(dev) & 0x1;
 332
 333         ha->pci_dev = dev;
 334
 335         pci_enable_busmaster(dev);
 336
 337         ha->reg_rid = PCIR_BAR(0);
 338         ha->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ha->reg_rid,
 339                                 RF_ACTIVE);
 340
 341         if (ha->pci_reg == NULL) {
 342                 device_printf(dev, "unable to map any ports\n");
 343                 goto qla_pci_attach_err;
 344         }
 345
 346         rsrc_len = (uint32_t) bus_get_resource_count(dev, SYS_RES_MEMORY,
 347                                         ha->reg_rid);
 348
 349         mtx_init(&ha->hw_lock, "qla83xx_hw_lock", MTX_NETWORK_LOCK, MTX_DEF);
 350         ha->flags.lock_init = 1;
 351
 352         qla_add_sysctls(ha);
 353
 354         ha->hw.num_sds_rings = MAX_SDS_RINGS;
 355         ha->hw.num_rds_rings = MAX_RDS_RINGS;
 356         ha->hw.num_tx_rings = NUM_TX_RINGS;
 357
 358         ha->reg_rid1 = PCIR_BAR(2);
 359         ha->pci_reg1 = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
 360                         &ha->reg_rid1, RF_ACTIVE);
 361
 362         ha->msix_count = pci_msix_count(dev);
 363
 364         if (ha->msix_count < 1 ) {
 365                 device_printf(dev, "%s: msix_count[%d] not enough\n", __func__,
 366                         ha->msix_count);
 367                 goto qla_pci_attach_err;
 368         }
 369
 370         if (ha->msix_count < (ha->hw.num_sds_rings + 1)) {
 371                 ha->hw.num_sds_rings = ha->msix_count - 1;
 372         }
 373
 374         QL_DPRINT2(ha, (dev, "%s: ha %p pci_func 0x%x rsrc_count 0x%08x"
 375                 " msix_count 0x%x pci_reg %p pci_reg1 %p\n", __func__, ha,
 376                 ha->pci_func, rsrc_len, ha->msix_count, ha->pci_reg,
 377                 ha->pci_reg1));
 378
 379         /* initialize hardware */
 380         if (ql_init_hw(ha)) {
 381                 device_printf(dev, "%s: ql_init_hw failed\n", __func__);
 382                 goto qla_pci_attach_err;
 383         }
 384
 385         device_printf(dev, "%s: firmware[%d.%d.%d.%d]\n", __func__,
 386                 ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 387                 ha->fw_ver_build);
 388         snprintf(ha->fw_ver_str, sizeof(ha->fw_ver_str), "%d.%d.%d.%d",
 389                         ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 390                         ha->fw_ver_build);
 391
 392         if (qla_get_nic_partition(ha, NULL, &num_rcvq)) {
 393                 device_printf(dev, "%s: qla_get_nic_partition failed\n",
 394                         __func__);
 395                 goto qla_pci_attach_err;
 396         }
 397         device_printf(dev, "%s: ha %p pci_func 0x%x rsrc_count 0x%08x"
 398                 " msix_count 0x%x pci_reg %p pci_reg1 %p num_rcvq = %d\n",
 399                 __func__, ha, ha->pci_func, rsrc_len, ha->msix_count,
 400                 ha->pci_reg, ha->pci_reg1, num_rcvq);
 401
 402         if ((ha->msix_count  < 64) || (num_rcvq != 32)) {
 403                 if (ha->hw.num_sds_rings > 15) {
 404                         ha->hw.num_sds_rings = 15;
 405                 }
 406         }
 407
 408         ha->hw.num_rds_rings = ha->hw.num_sds_rings;
 409         ha->hw.num_tx_rings = ha->hw.num_sds_rings;
 410
 411 #ifdef QL_ENABLE_ISCSI_TLV
 412         ha->hw.num_tx_rings = ha->hw.num_sds_rings * 2;
 413 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
 414
 415         ql_hw_add_sysctls(ha);
 416
 417         ha->msix_count = ha->hw.num_sds_rings + 1;
 418
 419         if (pci_alloc_msix(dev, &ha->msix_count)) {
 420                 device_printf(dev, "%s: pci_alloc_msi[%d] failed\n", __func__,
 421                         ha->msix_count);
 422                 ha->msix_count = 0;
 423                 goto qla_pci_attach_err;
 424         }
 425
 426         ha->mbx_irq_rid = 1;
 427         ha->mbx_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 428                                 &ha->mbx_irq_rid,
 429                                 (RF_ACTIVE | RF_SHAREABLE));
 430         if (ha->mbx_irq == NULL) {
 431                 device_printf(dev, "could not allocate mbx interrupt\n");
 432                 goto qla_pci_attach_err;
 433         }
 434         if (bus_setup_intr(dev, ha->mbx_irq, (INTR_TYPE_NET | INTR_MPSAFE),
 435                 NULL, ql_mbx_isr, ha, &ha->mbx_handle)) {
 436                 device_printf(dev, "could not setup mbx interrupt\n");
 437                 goto qla_pci_attach_err;
 438         }
 439
 440         for (i = 0; i < ha->hw.num_sds_rings; i++) {
 441                 ha->irq_vec[i].sds_idx = i;
 442                 ha->irq_vec[i].ha = ha;
 443                 ha->irq_vec[i].irq_rid = 2 + i;
 444
 445                 ha->irq_vec[i].irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 446                                 &ha->irq_vec[i].irq_rid,
 447                                 (RF_ACTIVE | RF_SHAREABLE));
 448
 449                 if (ha->irq_vec[i].irq == NULL) {
 450                         device_printf(dev, "could not allocate interrupt\n");
 451                         goto qla_pci_attach_err;
 452                 }
 453                 if (bus_setup_intr(dev, ha->irq_vec[i].irq,
 454                         (INTR_TYPE_NET | INTR_MPSAFE),
 455                         NULL, ql_isr, &ha->irq_vec[i],
 456                         &ha->irq_vec[i].handle)) {
 457                         device_printf(dev, "could not setup interrupt\n");
 458                         goto qla_pci_attach_err;
 459                 }
 460
 461                 ha->tx_fp[i].ha = ha;
 462                 ha->tx_fp[i].txr_idx = i;
 463
 464                 if (qla_alloc_tx_br(ha, &ha->tx_fp[i])) {
 465                         device_printf(dev, "%s: could not allocate tx_br[%d]\n",
 466                                 __func__, i);
 467                         goto qla_pci_attach_err;
 468                 }
 469         }
 470
 471         if (qla_create_fp_taskqueues(ha) != 0)
 472                 goto qla_pci_attach_err;
 473
 474         printf("%s: mp__ncpus %d sds %d rds %d msi-x %d\n", __func__, mp_ncpus,
 475                 ha->hw.num_sds_rings, ha->hw.num_rds_rings, ha->msix_count);
 476
 477         ql_read_mac_addr(ha);
 478
 479         /* allocate parent dma tag */
 480         if (qla_alloc_parent_dma_tag(ha)) {
 481                 device_printf(dev, "%s: qla_alloc_parent_dma_tag failed\n",
 482                         __func__);
 483                 goto qla_pci_attach_err;
 484         }
 485
 486         /* alloc all dma buffers */
 487         if (ql_alloc_dma(ha)) {
 488                 device_printf(dev, "%s: ql_alloc_dma failed\n", __func__);
 489                 goto qla_pci_attach_err;
 490         }
 491         qla_get_peer(ha);
 492
 493         if (ql_minidump_init(ha) != 0) {
 494                 device_printf(dev, "%s: ql_minidump_init failed\n", __func__);
 495                 goto qla_pci_attach_err;
 496         }
 497         ql_alloc_drvr_state_buffer(ha);
 498         /* create the o.s ethernet interface */
 499         qla_init_ifnet(dev, ha);
 500
 501         ha->flags.qla_watchdog_active = 1;
 502         ha->qla_watchdog_pause = 0;
 503
 504         callout_init(&ha->tx_callout, TRUE);
 505         ha->flags.qla_callout_init = 1;
 506
 507         /* create ioctl device interface */
 508         if (ql_make_cdev(ha)) {
 509                 device_printf(dev, "%s: ql_make_cdev failed\n", __func__);
 510                 goto qla_pci_attach_err;
 511         }
 512
 513         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 514                 qla_watchdog, ha);
 515
 516         TASK_INIT(&ha->err_task, 0, qla_error_recovery, ha);
 517         ha->err_tq = taskqueue_create("qla_errq", M_NOWAIT,
 518                         taskqueue_thread_enqueue, &ha->err_tq);
 519         taskqueue_start_threads(&ha->err_tq, 1, PI_NET, "%s errq",
 520                 device_get_nameunit(ha->pci_dev));
 521
 522         TASK_INIT(&ha->async_event_task, 0, qla_async_event, ha);
 523         ha->async_event_tq = taskqueue_create("qla_asyncq", M_NOWAIT,
 524                         taskqueue_thread_enqueue, &ha->async_event_tq);
 525         taskqueue_start_threads(&ha->async_event_tq, 1, PI_NET, "%s asyncq",
 526                 device_get_nameunit(ha->pci_dev));
 527
 528         TASK_INIT(&ha->stats_task, 0, qla_stats, ha);
 529         ha->stats_tq = taskqueue_create("qla_statsq", M_NOWAIT,
 530                         taskqueue_thread_enqueue, &ha->stats_tq);
 531         taskqueue_start_threads(&ha->stats_tq, 1, PI_NET, "%s taskq",
 532                 device_get_nameunit(ha->pci_dev));
 533
 534         QL_DPRINT2(ha, (dev, "%s: exit 0\n", __func__));
 535         return (0);
 536
 537 qla_pci_attach_err:
 538
 539         qla_release(ha);
 540
 541         if (ha->flags.lock_init) {
 542                 mtx_destroy(&ha->hw_lock);
 543         }
 544
 545         QL_DPRINT2(ha, (dev, "%s: exit ENXIO\n", __func__));
 546         return (ENXIO);
 547 }
 548
 549 /*
 550  * Name:        qla_pci_detach
 551  * Function:    Unhooks the device from the operating system
 552  */
 553 static int
 554 qla_pci_detach(device_t dev)
 555 {
 556         qla_host_t *ha = NULL;
 557         struct ifnet *ifp;
 558
 559
 560         if ((ha = device_get_softc(dev)) == NULL) {
 561                 device_printf(dev, "cannot get softc\n");
 562                 return (ENOMEM);
 563         }
 564
 565         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 566
 567         ifp = ha->ifp;
 568
 569         ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
 570         QLA_LOCK(ha, __func__, -1, 0);
 571
 572         ha->qla_detach_active = 1;
 573         qla_stop(ha);
 574
 575         qla_release(ha);
 576
 577         QLA_UNLOCK(ha, __func__);
 578
 579         if (ha->flags.lock_init) {
 580                 mtx_destroy(&ha->hw_lock);
 581         }
 582
 583         QL_DPRINT2(ha, (dev, "%s: exit\n", __func__));
 584
 585         return (0);
 586 }
 587
 588 /*
 589  * SYSCTL Related Callbacks
 590  */
 591 static int
 592 qla_sysctl_get_link_status(SYSCTL_HANDLER_ARGS)
 593 {
 594         int err, ret = 0;
 595         qla_host_t *ha;
 596
 597         err = sysctl_handle_int(oidp, &ret, 0, req);
 598
 599         if (err || !req->newptr)
 600                 return (err);
 601
 602         if (ret == 1) {
 603                 ha = (qla_host_t *)arg1;
 604                 ql_hw_link_status(ha);
 605         }
 606         return (err);
 607 }
 608
 609 /*
 610  * Name:        qla_release
 611  * Function:    Releases the resources allocated for the device
 612  */
 613 static void
 614 qla_release(qla_host_t *ha)
 615 {
 616         device_t dev;
 617         int i;
 618
 619         dev = ha->pci_dev;
 620
 621         if (ha->async_event_tq) {
 622                 taskqueue_drain(ha->async_event_tq, &ha->async_event_task);
 623                 taskqueue_free(ha->async_event_tq);
 624         }
 625
 626         if (ha->err_tq) {
 627                 taskqueue_drain(ha->err_tq, &ha->err_task);
 628                 taskqueue_free(ha->err_tq);
 629         }
 630
 631         if (ha->stats_tq) {
 632                 taskqueue_drain(ha->stats_tq, &ha->stats_task);
 633                 taskqueue_free(ha->stats_tq);
 634         }
 635
 636         ql_del_cdev(ha);
 637
 638         if (ha->flags.qla_watchdog_active) {
 639                 ha->qla_watchdog_exit = 1;
 640
 641                 while (ha->qla_watchdog_exited == 0)
 642                         qla_mdelay(__func__, 1);
 643         }
 644
 645         if (ha->flags.qla_callout_init)
 646                 callout_stop(&ha->tx_callout);
 647
 648         if (ha->ifp != NULL)
 649                 ether_ifdetach(ha->ifp);
 650
 651         ql_free_drvr_state_buffer(ha);
 652         ql_free_dma(ha);
 653         qla_free_parent_dma_tag(ha);
 654
 655         if (ha->mbx_handle)
 656                 (void)bus_teardown_intr(dev, ha->mbx_irq, ha->mbx_handle);
 657
 658         if (ha->mbx_irq)
 659                 (void) bus_release_resource(dev, SYS_RES_IRQ, ha->mbx_irq_rid,
 660                                 ha->mbx_irq);
 661
 662         for (i = 0; i < ha->hw.num_sds_rings; i++) {
 663
 664                 if (ha->irq_vec[i].handle) {
 665                         (void)bus_teardown_intr(dev, ha->irq_vec[i].irq,
 666                                         ha->irq_vec[i].handle);
 667                 }
 668
 669                 if (ha->irq_vec[i].irq) {
 670                         (void)bus_release_resource(dev, SYS_RES_IRQ,
 671                                 ha->irq_vec[i].irq_rid,
 672                                 ha->irq_vec[i].irq);
 673                 }
 674
 675                 qla_free_tx_br(ha, &ha->tx_fp[i]);
 676         }
 677         qla_destroy_fp_taskqueues(ha);
 678
 679         if (ha->msix_count)
 680                 pci_release_msi(dev);
 681
 682 //      if (ha->flags.lock_init) {
 683 //              mtx_destroy(&ha->hw_lock);
 684 //      }
 685
 686         if (ha->pci_reg)
 687                 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid,
 688                                 ha->pci_reg);
 689
 690         if (ha->pci_reg1)
 691                 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid1,
 692                                 ha->pci_reg1);
 693
 694         return;
 695 }
 696
 697 /*
 698  * DMA Related Functions
 699  */
 700
 701 static void
 702 qla_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 703 {
 704         *((bus_addr_t *)arg) = 0;
 705
 706         if (error) {
 707                 printf("%s: bus_dmamap_load failed (%d)\n", __func__, error);
 708                 return;
 709         }
 710
 711         *((bus_addr_t *)arg) = segs[0].ds_addr;
 712
 713         return;
 714 }
 715
 716 int
 717 ql_alloc_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 718 {
 719         int             ret = 0;
 720         device_t        dev;
 721         bus_addr_t      b_addr;
 722
 723         dev = ha->pci_dev;
 724
 725         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 726
 727         ret = bus_dma_tag_create(
 728                         ha->parent_tag,/* parent */
 729                         dma_buf->alignment,
 730                         ((bus_size_t)(1ULL << 32)),/* boundary */
 731                         BUS_SPACE_MAXADDR,      /* lowaddr */
 732                         BUS_SPACE_MAXADDR,      /* highaddr */
 733                         NULL, NULL,             /* filter, filterarg */
 734                         dma_buf->size,          /* maxsize */
 735                         1,                      /* nsegments */
 736                         dma_buf->size,          /* maxsegsize */
 737                         0,                      /* flags */
 738                         NULL, NULL,             /* lockfunc, lockarg */
 739                         &dma_buf->dma_tag);
 740
 741         if (ret) {
 742                 device_printf(dev, "%s: could not create dma tag\n", __func__);
 743                 goto ql_alloc_dmabuf_exit;
 744         }
 745         ret = bus_dmamem_alloc(dma_buf->dma_tag,
 746                         (void **)&dma_buf->dma_b,
 747                         (BUS_DMA_ZERO | BUS_DMA_COHERENT | BUS_DMA_NOWAIT),
 748                         &dma_buf->dma_map);
 749         if (ret) {
 750                 bus_dma_tag_destroy(dma_buf->dma_tag);
 751                 device_printf(dev, "%s: bus_dmamem_alloc failed\n", __func__);
 752                 goto ql_alloc_dmabuf_exit;
 753         }
 754
 755         ret = bus_dmamap_load(dma_buf->dma_tag,
 756                         dma_buf->dma_map,
 757                         dma_buf->dma_b,
 758                         dma_buf->size,
 759                         qla_dmamap_callback,
 760                         &b_addr, BUS_DMA_NOWAIT);
 761
 762         if (ret || !b_addr) {
 763                 bus_dma_tag_destroy(dma_buf->dma_tag);
 764                 bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b,
 765                         dma_buf->dma_map);
 766                 ret = -1;
 767                 goto ql_alloc_dmabuf_exit;
 768         }
 769
 770         dma_buf->dma_addr = b_addr;
 771
 772 ql_alloc_dmabuf_exit:
 773         QL_DPRINT2(ha, (dev, "%s: exit ret 0x%08x tag %p map %p b %p sz 0x%x\n",
 774                 __func__, ret, (void *)dma_buf->dma_tag,
 775                 (void *)dma_buf->dma_map, (void *)dma_buf->dma_b,
 776                 dma_buf->size));
 777
 778         return ret;
 779 }
 780
 781 void
 782 ql_free_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 783 {
 784         bus_dmamap_unload(dma_buf->dma_tag, dma_buf->dma_map);
 785         bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b, dma_buf->dma_map);
 786         bus_dma_tag_destroy(dma_buf->dma_tag);
 787 }
 788
 789 static int
 790 qla_alloc_parent_dma_tag(qla_host_t *ha)
 791 {
 792         int             ret;
 793         device_t        dev;
 794
 795         dev = ha->pci_dev;
 796
 797         /*
 798          * Allocate parent DMA Tag
 799          */
 800         ret = bus_dma_tag_create(
 801                         bus_get_dma_tag(dev),   /* parent */
 802                         1,((bus_size_t)(1ULL << 32)),/* alignment, boundary */
 803                         BUS_SPACE_MAXADDR,      /* lowaddr */
 804                         BUS_SPACE_MAXADDR,      /* highaddr */
 805                         NULL, NULL,             /* filter, filterarg */
 806                         BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
 807                         0,                      /* nsegments */
 808                         BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
 809                         0,                      /* flags */
 810                         NULL, NULL,             /* lockfunc, lockarg */
 811                         &ha->parent_tag);
 812
 813         if (ret) {
 814                 device_printf(dev, "%s: could not create parent dma tag\n",
 815                         __func__);
 816                 return (-1);
 817         }
 818
 819         ha->flags.parent_tag = 1;
 820
 821         return (0);
 822 }
 823
 824 static void
 825 qla_free_parent_dma_tag(qla_host_t *ha)
 826 {
 827         if (ha->flags.parent_tag) {
 828                 bus_dma_tag_destroy(ha->parent_tag);
 829                 ha->flags.parent_tag = 0;
 830         }
 831 }
 832
 833 /*
 834  * Name: qla_init_ifnet
 835  * Function: Creates the Network Device Interface and Registers it with the O.S
 836  */
 837
 838 static void
 839 qla_init_ifnet(device_t dev, qla_host_t *ha)
 840 {
 841         struct ifnet *ifp;
 842
 843         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 844
 845         ifp = ha->ifp = if_alloc(IFT_ETHER);
 846
 847         if (ifp == NULL)
 848                 panic("%s: cannot if_alloc()\n", device_get_nameunit(dev));
 849
 850         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 851
 852         ifp->if_baudrate = IF_Gbps(10);
 853         ifp->if_capabilities = IFCAP_LINKSTATE;
 854         ifp->if_mtu = ETHERMTU;
 855
 856         ifp->if_init = qla_init;
 857         ifp->if_softc = ha;
 858         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 859         ifp->if_ioctl = qla_ioctl;
 860
 861         ifp->if_transmit = qla_transmit;
 862         ifp->if_qflush = qla_qflush;
 863
 864         IFQ_SET_MAXLEN(&ifp->if_snd, qla_get_ifq_snd_maxlen(ha));
 865         ifp->if_snd.ifq_drv_maxlen = qla_get_ifq_snd_maxlen(ha);
 866         IFQ_SET_READY(&ifp->if_snd);
 867
 868         ha->max_frame_size = ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 869
 870         ether_ifattach(ifp, qla_get_mac_addr(ha));
 871
 872         ifp->if_capabilities |= IFCAP_HWCSUM |
 873                                 IFCAP_TSO4 |
 874                                 IFCAP_JUMBO_MTU |
 875                                 IFCAP_VLAN_HWTAGGING |
 876                                 IFCAP_VLAN_MTU |
 877                                 IFCAP_VLAN_HWTSO |
 878                                 IFCAP_LRO;
 879
 880         ifp->if_capenable = ifp->if_capabilities;
 881
 882         ifp->if_hdrlen = sizeof(struct ether_vlan_header);
 883
 884         ifmedia_init(&ha->media, IFM_IMASK, qla_media_change, qla_media_status);
 885
 886         ifmedia_add(&ha->media, (IFM_ETHER | qla_get_optics(ha) | IFM_FDX), 0,
 887                 NULL);
 888         ifmedia_add(&ha->media, (IFM_ETHER | IFM_AUTO), 0, NULL);
 889
 890         ifmedia_set(&ha->media, (IFM_ETHER | IFM_AUTO));
 891
 892         QL_DPRINT2(ha, (dev, "%s: exit\n", __func__));
 893
 894         return;
 895 }
 896
 897 static void
 898 qla_init_locked(qla_host_t *ha)
 899 {
 900         struct ifnet *ifp = ha->ifp;
 901
 902         qla_stop(ha);
 903
 904         if (qla_alloc_xmt_bufs(ha) != 0)
 905                 return;
 906
 907         qla_confirm_9kb_enable(ha);
 908
 909         if (qla_alloc_rcv_bufs(ha) != 0)
 910                 return;
 911
 912         bcopy(IF_LLADDR(ha->ifp), ha->hw.mac_addr, ETHER_ADDR_LEN);
 913
 914         ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_TSO;
 915         ifp->if_hwassist |= CSUM_TCP_IPV6 | CSUM_UDP_IPV6;
 916
 917         ha->stop_rcv = 0;
 918         if (ql_init_hw_if(ha) == 0) {
 919                 ifp = ha->ifp;
 920                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
 921                 ha->qla_watchdog_pause = 0;
 922                 ha->hw_vlan_tx_frames = 0;
 923                 ha->tx_tso_frames = 0;
 924                 ha->qla_interface_up = 1;
 925                 ql_update_link_state(ha);
 926         }
 927
 928         return;
 929 }
 930
 931 static void
 932 qla_init(void *arg)
 933 {
 934         qla_host_t *ha;
 935
 936         ha = (qla_host_t *)arg;
 937
 938         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
 939
 940         if (QLA_LOCK(ha, __func__, -1, 0) != 0)
 941                 return;
 942
 943         qla_init_locked(ha);
 944
 945         QLA_UNLOCK(ha, __func__);
 946
 947         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
 948 }
 949
 950 static int
 951 qla_set_multi(qla_host_t *ha, uint32_t add_multi)
 952 {
 953         uint8_t mta[Q8_MAX_NUM_MULTICAST_ADDRS * Q8_MAC_ADDR_LEN];
 954         struct ifmultiaddr *ifma;
 955         int mcnt = 0;
 956         struct ifnet *ifp = ha->ifp;
 957         int ret = 0;
 958
 959         if_maddr_rlock(ifp);
 960
 961         TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 962
 963                 if (ifma->ifma_addr->sa_family != AF_LINK)
 964                         continue;
 965
 966                 if (mcnt == Q8_MAX_NUM_MULTICAST_ADDRS)
 967                         break;
 968
 969                 bcopy(LLADDR((struct sockaddr_dl *) ifma->ifma_addr),
 970                         &mta[mcnt * Q8_MAC_ADDR_LEN], Q8_MAC_ADDR_LEN);
 971
 972                 mcnt++;
 973         }
 974
 975         if_maddr_runlock(ifp);
 976
 977         if (QLA_LOCK(ha, __func__, QLA_LOCK_DEFAULT_MS_TIMEOUT,
 978                 QLA_LOCK_NO_SLEEP) != 0)
 979                 return (-1);
 980
 981         if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 982
 983                 if (!add_multi) {
 984                         ret = qla_hw_del_all_mcast(ha);
 985
 986                         if (ret)
 987                                 device_printf(ha->pci_dev,
 988                                         "%s: qla_hw_del_all_mcast() failed\n",
 989                                 __func__);
 990                 }
 991
 992                 if (!ret)
 993                         ret = ql_hw_set_multi(ha, mta, mcnt, 1);
 994
 995         }
 996
 997         QLA_UNLOCK(ha, __func__);
 998
 999         return (ret);
1000 }
1001
1002 static int
1003 qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1004 {
1005         int ret = 0;
1006         struct ifreq *ifr = (struct ifreq *)data;
1007         struct ifaddr *ifa = (struct ifaddr *)data;
1008         qla_host_t *ha;
1009
1010         ha = (qla_host_t *)ifp->if_softc;
1011
1012         switch (cmd) {
1013         case SIOCSIFADDR:
1014                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFADDR (0x%lx)\n",
1015                         __func__, cmd));
1016
1017                 if (ifa->ifa_addr->sa_family == AF_INET) {
1018
1019                         ret = QLA_LOCK(ha, __func__,
1020                                         QLA_LOCK_DEFAULT_MS_TIMEOUT,
1021                                         QLA_LOCK_NO_SLEEP);
1022                         if (ret)
1023                                 break;
1024
1025                         ifp->if_flags |= IFF_UP;
1026
1027                         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1028                                 qla_init_locked(ha);
1029                         }
1030
1031                         QLA_UNLOCK(ha, __func__);
1032                         QL_DPRINT4(ha, (ha->pci_dev,
1033                                 "%s: SIOCSIFADDR (0x%lx) ipv4 [0x%08x]\n",
1034                                 __func__, cmd,
1035                                 ntohl(IA_SIN(ifa)->sin_addr.s_addr)));
1036
1037                         arp_ifinit(ifp, ifa);
1038                 } else {
1039                         ether_ioctl(ifp, cmd, data);
1040                 }
1041                 break;
1042
1043         case SIOCSIFMTU:
1044                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFMTU (0x%lx)\n",
1045                         __func__, cmd));
1046
1047                 if (ifr->ifr_mtu > QLA_MAX_MTU) {
1048                         ret = EINVAL;
1049                 } else {
1050                         ret = QLA_LOCK(ha, __func__, QLA_LOCK_DEFAULT_MS_TIMEOUT,
1051                                         QLA_LOCK_NO_SLEEP);
1052
1053                         if (ret)
1054                                 break;
1055
1056                         ifp->if_mtu = ifr->ifr_mtu;
1057                         ha->max_frame_size =
1058                                 ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
1059
1060                         if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1061                                 qla_init_locked(ha);
1062                         }
1063
1064                         if (ifp->if_mtu > ETHERMTU)
1065                                 ha->std_replenish = QL_JUMBO_REPLENISH_THRES;
1066                         else
1067                                 ha->std_replenish = QL_STD_REPLENISH_THRES;
1068
1069
1070                         QLA_UNLOCK(ha, __func__);
1071                 }
1072
1073                 break;
1074
1075         case SIOCSIFFLAGS:
1076                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFFLAGS (0x%lx)\n",
1077                         __func__, cmd));
1078
1079                 ret = QLA_LOCK(ha, __func__, QLA_LOCK_DEFAULT_MS_TIMEOUT,
1080                                 QLA_LOCK_NO_SLEEP);
1081
1082                 if (ret)
1083                         break;
1084
1085                 if (ifp->if_flags & IFF_UP) {
1086
1087                         ha->max_frame_size = ifp->if_mtu +
1088                                         ETHER_HDR_LEN + ETHER_CRC_LEN;
1089                         qla_init_locked(ha);
1090
1091                         if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1092                                 if ((ifp->if_flags ^ ha->if_flags) &
1093                                         IFF_PROMISC) {
1094                                         ret = ql_set_promisc(ha);
1095                                 } else if ((ifp->if_flags ^ ha->if_flags) &
1096                                         IFF_ALLMULTI) {
1097                                         ret = ql_set_allmulti(ha);
1098                                 }
1099                         }
1100                 } else {
1101                         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1102                                 qla_stop(ha);
1103                         ha->if_flags = ifp->if_flags;
1104                 }
1105
1106                 QLA_UNLOCK(ha, __func__);
1107                 break;
1108
1109         case SIOCADDMULTI:
1110                 QL_DPRINT4(ha, (ha->pci_dev,
1111                         "%s: %s (0x%lx)\n", __func__, "SIOCADDMULTI", cmd));
1112
1113                 if (qla_set_multi(ha, 1))
1114                         ret = EINVAL;
1115                 break;
1116
1117         case SIOCDELMULTI:
1118                 QL_DPRINT4(ha, (ha->pci_dev,
1119                         "%s: %s (0x%lx)\n", __func__, "SIOCDELMULTI", cmd));
1120
1121                 if (qla_set_multi(ha, 0))
1122                         ret = EINVAL;
1123                 break;
1124
1125         case SIOCSIFMEDIA:
1126         case SIOCGIFMEDIA:
1127                 QL_DPRINT4(ha, (ha->pci_dev,
1128                         "%s: SIOCSIFMEDIA/SIOCGIFMEDIA (0x%lx)\n",
1129                         __func__, cmd));
1130                 ret = ifmedia_ioctl(ifp, ifr, &ha->media, cmd);
1131                 break;
1132
1133         case SIOCSIFCAP:
1134         {
1135                 int mask = ifr->ifr_reqcap ^ ifp->if_capenable;
1136
1137                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFCAP (0x%lx)\n",
1138                         __func__, cmd));
1139
1140                 if (mask & IFCAP_HWCSUM)
1141                         ifp->if_capenable ^= IFCAP_HWCSUM;
1142                 if (mask & IFCAP_TSO4)
1143                         ifp->if_capenable ^= IFCAP_TSO4;
1144                 if (mask & IFCAP_TSO6)
1145                         ifp->if_capenable ^= IFCAP_TSO6;
1146                 if (mask & IFCAP_VLAN_HWTAGGING)
1147                         ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
1148                 if (mask & IFCAP_VLAN_HWTSO)
1149                         ifp->if_capenable ^= IFCAP_VLAN_HWTSO;
1150                 if (mask & IFCAP_LRO)
1151                         ifp->if_capenable ^= IFCAP_LRO;
1152
1153                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1154                         ret = QLA_LOCK(ha, __func__, QLA_LOCK_DEFAULT_MS_TIMEOUT,
1155                                 QLA_LOCK_NO_SLEEP);
1156
1157                         if (ret)
1158                                 break;
1159
1160                         qla_init_locked(ha);
1161
1162                         QLA_UNLOCK(ha, __func__);
1163
1164                 }
1165                 VLAN_CAPABILITIES(ifp);
1166                 break;
1167         }
1168
1169         default:
1170                 QL_DPRINT4(ha, (ha->pci_dev, "%s: default (0x%lx)\n",
1171                         __func__, cmd));
1172                 ret = ether_ioctl(ifp, cmd, data);
1173                 break;
1174         }
1175
1176         return (ret);
1177 }
1178
1179 static int
1180 qla_media_change(struct ifnet *ifp)
1181 {
1182         qla_host_t *ha;
1183         struct ifmedia *ifm;
1184         int ret = 0;
1185
1186         ha = (qla_host_t *)ifp->if_softc;
1187
1188         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1189
1190         ifm = &ha->media;
1191
1192         if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
1193                 ret = EINVAL;
1194
1195         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1196
1197         return (ret);
1198 }
1199
1200 static void
1201 qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr)
1202 {
1203         qla_host_t *ha;
1204
1205         ha = (qla_host_t *)ifp->if_softc;
1206
1207         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1208
1209         ifmr->ifm_status = IFM_AVALID;
1210         ifmr->ifm_active = IFM_ETHER;
1211
1212         ql_update_link_state(ha);
1213         if (ha->hw.link_up) {
1214                 ifmr->ifm_status |= IFM_ACTIVE;
1215                 ifmr->ifm_active |= (IFM_FDX | qla_get_optics(ha));
1216         }
1217
1218         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit (%s)\n", __func__,\
1219                 (ha->hw.link_up ? "link_up" : "link_down")));
1220
1221         return;
1222 }
1223
1224
1225 static int
1226 qla_send(qla_host_t *ha, struct mbuf **m_headp, uint32_t txr_idx,
1227         uint32_t iscsi_pdu)
1228 {
1229         bus_dma_segment_t       segs[QLA_MAX_SEGMENTS];
1230         bus_dmamap_t            map;
1231         int                     nsegs;
1232         int                     ret = -1;
1233         uint32_t                tx_idx;
1234         struct mbuf             *m_head = *m_headp;
1235
1236         QL_DPRINT8(ha, (ha->pci_dev, "%s: enter\n", __func__));
1237
1238         tx_idx = ha->hw.tx_cntxt[txr_idx].txr_next;
1239
1240         if (NULL != ha->tx_ring[txr_idx].tx_buf[tx_idx].m_head) {
1241                 QL_ASSERT(ha, 0, ("%s [%d]: txr_idx = %d tx_idx = %d "\
1242                         "mbuf = %p\n", __func__, __LINE__, txr_idx, tx_idx,\
1243                         ha->tx_ring[txr_idx].tx_buf[tx_idx].m_head));
1244                 if (m_head)
1245                         m_freem(m_head);
1246                 *m_headp = NULL;
1247                 return (ret);
1248         }
1249
1250         map = ha->tx_ring[txr_idx].tx_buf[tx_idx].map;
1251
1252         ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head, segs, &nsegs,
1253                         BUS_DMA_NOWAIT);
1254
1255         if (ret == EFBIG) {
1256
1257                 struct mbuf *m;
1258
1259                 QL_DPRINT8(ha, (ha->pci_dev, "%s: EFBIG [%d]\n", __func__,
1260                         m_head->m_pkthdr.len));
1261
1262                 m = m_defrag(m_head, M_NOWAIT);
1263                 if (m == NULL) {
1264                         ha->err_tx_defrag++;
1265                         m_freem(m_head);
1266                         *m_headp = NULL;
1267                         device_printf(ha->pci_dev,
1268                                 "%s: m_defrag() = NULL [%d]\n",
1269                                 __func__, ret);
1270                         return (ENOBUFS);
1271                 }
1272                 m_head = m;
1273                 *m_headp = m_head;
1274
1275                 if ((ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head,
1276                                         segs, &nsegs, BUS_DMA_NOWAIT))) {
1277
1278                         ha->err_tx_dmamap_load++;
1279
1280                         device_printf(ha->pci_dev,
1281                                 "%s: bus_dmamap_load_mbuf_sg failed0[%d, %d]\n",
1282                                 __func__, ret, m_head->m_pkthdr.len);
1283
1284                         if (ret != ENOMEM) {
1285                                 m_freem(m_head);
1286                                 *m_headp = NULL;
1287                         }
1288                         return (ret);
1289                 }
1290
1291         } else if (ret) {
1292
1293                 ha->err_tx_dmamap_load++;
1294
1295                 device_printf(ha->pci_dev,
1296                         "%s: bus_dmamap_load_mbuf_sg failed1[%d, %d]\n",
1297                         __func__, ret, m_head->m_pkthdr.len);
1298
1299                 if (ret != ENOMEM) {
1300                         m_freem(m_head);
1301                         *m_headp = NULL;
1302                 }
1303                 return (ret);
1304         }
1305
1306         QL_ASSERT(ha, (nsegs != 0), ("qla_send: empty packet"));
1307
1308         bus_dmamap_sync(ha->tx_tag, map, BUS_DMASYNC_PREWRITE);
1309
1310         if (!(ret = ql_hw_send(ha, segs, nsegs, tx_idx, m_head, txr_idx,
1311                                 iscsi_pdu))) {
1312                 ha->tx_ring[txr_idx].count++;
1313                 if (iscsi_pdu)
1314                         ha->tx_ring[txr_idx].iscsi_pkt_count++;
1315                 ha->tx_ring[txr_idx].tx_buf[tx_idx].m_head = m_head;
1316         } else {
1317                 bus_dmamap_unload(ha->tx_tag, map);
1318                 if (ret == EINVAL) {
1319                         if (m_head)
1320                                 m_freem(m_head);
1321                         *m_headp = NULL;
1322                 }
1323         }
1324
1325         QL_DPRINT8(ha, (ha->pci_dev, "%s: exit\n", __func__));
1326         return (ret);
1327 }
1328
1329 static int
1330 qla_alloc_tx_br(qla_host_t *ha, qla_tx_fp_t *fp)
1331 {
1332         snprintf(fp->tx_mtx_name, sizeof(fp->tx_mtx_name),
1333                 "qla%d_fp%d_tx_mq_lock", ha->pci_func, fp->txr_idx);
1334
1335         mtx_init(&fp->tx_mtx, fp->tx_mtx_name, NULL, MTX_DEF);
1336
1337         fp->tx_br = buf_ring_alloc(NUM_TX_DESCRIPTORS, M_DEVBUF,
1338                                    M_NOWAIT, &fp->tx_mtx);
1339         if (fp->tx_br == NULL) {
1340             QL_DPRINT1(ha, (ha->pci_dev, "buf_ring_alloc failed for "
1341                 " fp[%d, %d]\n", ha->pci_func, fp->txr_idx));
1342             return (-ENOMEM);
1343         }
1344         return 0;
1345 }
1346
1347 static void
1348 qla_free_tx_br(qla_host_t *ha, qla_tx_fp_t *fp)
1349 {
1350         struct mbuf *mp;
1351         struct ifnet *ifp = ha->ifp;
1352
1353         if (mtx_initialized(&fp->tx_mtx)) {
1354
1355                 if (fp->tx_br != NULL) {
1356
1357                         mtx_lock(&fp->tx_mtx);
1358
1359                         while ((mp = drbr_dequeue(ifp, fp->tx_br)) != NULL) {
1360                                 m_freem(mp);
1361                         }
1362
1363                         mtx_unlock(&fp->tx_mtx);
1364
1365                         buf_ring_free(fp->tx_br, M_DEVBUF);
1366                         fp->tx_br = NULL;
1367                 }
1368                 mtx_destroy(&fp->tx_mtx);
1369         }
1370         return;
1371 }
1372
1373 static void
1374 qla_fp_taskqueue(void *context, int pending)
1375 {
1376         qla_tx_fp_t *fp;
1377         qla_host_t *ha;
1378         struct ifnet *ifp;
1379         struct mbuf  *mp;
1380         int ret;
1381         uint32_t txr_idx;
1382         uint32_t iscsi_pdu = 0;
1383         uint32_t rx_pkts_left = -1;
1384
1385         fp = context;
1386
1387         if (fp == NULL)
1388                 return;
1389
1390         ha = (qla_host_t *)fp->ha;
1391
1392         ifp = ha->ifp;
1393
1394         txr_idx = fp->txr_idx;
1395
1396         mtx_lock(&fp->tx_mtx);
1397
1398         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING) || (!ha->hw.link_up)) {
1399                 mtx_unlock(&fp->tx_mtx);
1400                 goto qla_fp_taskqueue_exit;
1401         }
1402
1403         while (rx_pkts_left && !ha->stop_rcv &&
1404                 (ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1405                 rx_pkts_left = ql_rcv_isr(ha, fp->txr_idx, 64);
1406
1407 #ifdef QL_ENABLE_ISCSI_TLV
1408                 ql_hw_tx_done_locked(ha, fp->txr_idx);
1409                 ql_hw_tx_done_locked(ha, (fp->txr_idx + (ha->hw.num_tx_rings >> 1)));
1410 #else
1411                 ql_hw_tx_done_locked(ha, fp->txr_idx);
1412 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
1413
1414                 mp = drbr_peek(ifp, fp->tx_br);
1415
1416                 while (mp != NULL) {
1417
1418                         if (M_HASHTYPE_GET(mp) != M_HASHTYPE_NONE) {
1419 #ifdef QL_ENABLE_ISCSI_TLV
1420                                 if (ql_iscsi_pdu(ha, mp) == 0) {
1421                                         txr_idx = txr_idx +
1422                                                 (ha->hw.num_tx_rings >> 1);
1423                                         iscsi_pdu = 1;
1424                                 } else {
1425                                         iscsi_pdu = 0;
1426                                         txr_idx = fp->txr_idx;
1427                                 }
1428 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
1429                         }
1430
1431                         ret = qla_send(ha, &mp, txr_idx, iscsi_pdu);
1432
1433                         if (ret) {
1434                                 if (mp != NULL)
1435                                         drbr_putback(ifp, fp->tx_br, mp);
1436                                 else {
1437                                         drbr_advance(ifp, fp->tx_br);
1438                                 }
1439
1440                                 mtx_unlock(&fp->tx_mtx);
1441
1442                                 goto qla_fp_taskqueue_exit0;
1443                         } else {
1444                                 drbr_advance(ifp, fp->tx_br);
1445                         }
1446
1447                         /* Send a copy of the frame to the BPF listener */
1448                         ETHER_BPF_MTAP(ifp, mp);
1449                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
1450                                 break;
1451
1452                         mp = drbr_peek(ifp, fp->tx_br);
1453                 }
1454         }
1455         mtx_unlock(&fp->tx_mtx);
1456
1457 qla_fp_taskqueue_exit0:
1458
1459         if (rx_pkts_left || ((mp != NULL) && ret)) {
1460                 taskqueue_enqueue(fp->fp_taskqueue, &fp->fp_task);
1461         } else {
1462                 if (!ha->stop_rcv) {
1463                         QL_ENABLE_INTERRUPTS(ha, fp->txr_idx);
1464                 }
1465         }
1466
1467 qla_fp_taskqueue_exit:
1468
1469         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit ret = %d\n", __func__, ret));
1470         return;
1471 }
1472
1473 static int
1474 qla_create_fp_taskqueues(qla_host_t *ha)
1475 {
1476         int     i;
1477         uint8_t tq_name[32];
1478
1479         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1480
1481                 qla_tx_fp_t *fp = &ha->tx_fp[i];
1482
1483                 bzero(tq_name, sizeof (tq_name));
1484                 snprintf(tq_name, sizeof (tq_name), "ql_fp_tq_%d", i);
1485
1486                 TASK_INIT(&fp->fp_task, 0, qla_fp_taskqueue, fp);
1487
1488                 fp->fp_taskqueue = taskqueue_create_fast(tq_name, M_NOWAIT,
1489                                         taskqueue_thread_enqueue,
1490                                         &fp->fp_taskqueue);
1491
1492                 if (fp->fp_taskqueue == NULL)
1493                         return (-1);
1494
1495                 taskqueue_start_threads(&fp->fp_taskqueue, 1, PI_NET, "%s",
1496                         tq_name);
1497
1498                 QL_DPRINT1(ha, (ha->pci_dev, "%s: %p\n", __func__,
1499                         fp->fp_taskqueue));
1500         }
1501
1502         return (0);
1503 }
1504
1505 static void
1506 qla_destroy_fp_taskqueues(qla_host_t *ha)
1507 {
1508         int     i;
1509
1510         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1511
1512                 qla_tx_fp_t *fp = &ha->tx_fp[i];
1513
1514                 if (fp->fp_taskqueue != NULL) {
1515                         taskqueue_drain(fp->fp_taskqueue, &fp->fp_task);
1516                         taskqueue_free(fp->fp_taskqueue);
1517                         fp->fp_taskqueue = NULL;
1518                 }
1519         }
1520         return;
1521 }
1522
1523 static void
1524 qla_drain_fp_taskqueues(qla_host_t *ha)
1525 {
1526         int     i;
1527
1528         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1529                 qla_tx_fp_t *fp = &ha->tx_fp[i];
1530
1531                 if (fp->fp_taskqueue != NULL) {
1532                         taskqueue_drain(fp->fp_taskqueue, &fp->fp_task);
1533                 }
1534         }
1535         return;
1536 }
1537
1538 static int
1539 qla_transmit(struct ifnet *ifp, struct mbuf  *mp)
1540 {
1541         qla_host_t *ha = (qla_host_t *)ifp->if_softc;
1542         qla_tx_fp_t *fp;
1543         int rss_id = 0;
1544         int ret = 0;
1545
1546         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1547
1548 #if __FreeBSD_version >= 1100000
1549         if (M_HASHTYPE_GET(mp) != M_HASHTYPE_NONE)
1550 #else
1551         if (mp->m_flags & M_FLOWID)
1552 #endif
1553                 rss_id = (mp->m_pkthdr.flowid & Q8_RSS_IND_TBL_MAX_IDX) %
1554                                         ha->hw.num_sds_rings;
1555         fp = &ha->tx_fp[rss_id];
1556
1557         if (fp->tx_br == NULL) {
1558                 ret = EINVAL;
1559                 goto qla_transmit_exit;
1560         }
1561
1562         if (mp != NULL) {
1563                 ret = drbr_enqueue(ifp, fp->tx_br, mp);
1564         }
1565
1566         if (fp->fp_taskqueue != NULL)
1567                 taskqueue_enqueue(fp->fp_taskqueue, &fp->fp_task);
1568
1569         ret = 0;
1570
1571 qla_transmit_exit:
1572
1573         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit ret = %d\n", __func__, ret));
1574         return ret;
1575 }
1576
1577 static void
1578 qla_qflush(struct ifnet *ifp)
1579 {
1580         int                     i;
1581         qla_tx_fp_t             *fp;
1582         struct mbuf             *mp;
1583         qla_host_t              *ha;
1584
1585         ha = (qla_host_t *)ifp->if_softc;
1586
1587         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1588
1589         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1590
1591                 fp = &ha->tx_fp[i];
1592
1593                 if (fp == NULL)
1594                         continue;
1595
1596                 if (fp->tx_br) {
1597                         mtx_lock(&fp->tx_mtx);
1598
1599                         while ((mp = drbr_dequeue(ifp, fp->tx_br)) != NULL) {
1600                                 m_freem(mp);
1601                         }
1602                         mtx_unlock(&fp->tx_mtx);
1603                 }
1604         }
1605         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1606
1607         return;
1608 }
1609
1610 static void
1611 qla_stop(qla_host_t *ha)
1612 {
1613         struct ifnet *ifp = ha->ifp;
1614         device_t        dev;
1615         int i = 0;
1616
1617         dev = ha->pci_dev;
1618
1619         ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1620         ha->qla_watchdog_pause = 1;
1621
1622         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1623                 qla_tx_fp_t *fp;
1624
1625                 fp = &ha->tx_fp[i];
1626
1627                 if (fp == NULL)
1628                         continue;
1629
1630                 if (fp->tx_br != NULL) {
1631                         mtx_lock(&fp->tx_mtx);
1632                         mtx_unlock(&fp->tx_mtx);
1633                 }
1634         }
1635
1636         while (!ha->qla_watchdog_paused)
1637                 qla_mdelay(__func__, 1);
1638
1639         ha->qla_interface_up = 0;
1640
1641         qla_drain_fp_taskqueues(ha);
1642
1643         ql_del_hw_if(ha);
1644
1645         qla_free_xmt_bufs(ha);
1646         qla_free_rcv_bufs(ha);
1647
1648         return;
1649 }
1650
1651 /*
1652  * Buffer Management Functions for Transmit and Receive Rings
1653  */
1654 static int
1655 qla_alloc_xmt_bufs(qla_host_t *ha)
1656 {
1657         int ret = 0;
1658         uint32_t i, j;
1659         qla_tx_buf_t *txb;
1660
1661         if (bus_dma_tag_create(NULL,    /* parent */
1662                 1, 0,    /* alignment, bounds */
1663                 BUS_SPACE_MAXADDR,       /* lowaddr */
1664                 BUS_SPACE_MAXADDR,       /* highaddr */
1665                 NULL, NULL,      /* filter, filterarg */
1666                 QLA_MAX_TSO_FRAME_SIZE,     /* maxsize */
1667                 QLA_MAX_SEGMENTS,        /* nsegments */
1668                 PAGE_SIZE,        /* maxsegsize */
1669                 BUS_DMA_ALLOCNOW,        /* flags */
1670                 NULL,    /* lockfunc */
1671                 NULL,    /* lockfuncarg */
1672                 &ha->tx_tag)) {
1673                 device_printf(ha->pci_dev, "%s: tx_tag alloc failed\n",
1674                         __func__);
1675                 return (ENOMEM);
1676         }
1677
1678         for (i = 0; i < ha->hw.num_tx_rings; i++) {
1679                 bzero((void *)ha->tx_ring[i].tx_buf,
1680                         (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1681         }
1682
1683         for (j = 0; j < ha->hw.num_tx_rings; j++) {
1684                 for (i = 0; i < NUM_TX_DESCRIPTORS; i++) {
1685
1686                         txb = &ha->tx_ring[j].tx_buf[i];
1687
1688                         if ((ret = bus_dmamap_create(ha->tx_tag,
1689                                         BUS_DMA_NOWAIT, &txb->map))) {
1690
1691                                 ha->err_tx_dmamap_create++;
1692                                 device_printf(ha->pci_dev,
1693                                         "%s: bus_dmamap_create failed[%d]\n",
1694                                         __func__, ret);
1695
1696                                 qla_free_xmt_bufs(ha);
1697
1698                                 return (ret);
1699                         }
1700                 }
1701         }
1702
1703         return 0;
1704 }
1705
1706 /*
1707  * Release mbuf after it sent on the wire
1708  */
1709 static void
1710 qla_clear_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb)
1711 {
1712         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1713
1714         if (txb->m_head) {
1715                 bus_dmamap_sync(ha->tx_tag, txb->map,
1716                         BUS_DMASYNC_POSTWRITE);
1717
1718                 bus_dmamap_unload(ha->tx_tag, txb->map);
1719
1720                 m_freem(txb->m_head);
1721                 txb->m_head = NULL;
1722
1723                 bus_dmamap_destroy(ha->tx_tag, txb->map);
1724                 txb->map = NULL;
1725         }
1726
1727         if (txb->map) {
1728                 bus_dmamap_unload(ha->tx_tag, txb->map);
1729                 bus_dmamap_destroy(ha->tx_tag, txb->map);
1730                 txb->map = NULL;
1731         }
1732
1733         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1734 }
1735
1736 static void
1737 qla_free_xmt_bufs(qla_host_t *ha)
1738 {
1739         int             i, j;
1740
1741         for (j = 0; j < ha->hw.num_tx_rings; j++) {
1742                 for (i = 0; i < NUM_TX_DESCRIPTORS; i++)
1743                         qla_clear_tx_buf(ha, &ha->tx_ring[j].tx_buf[i]);
1744         }
1745
1746         if (ha->tx_tag != NULL) {
1747                 bus_dma_tag_destroy(ha->tx_tag);
1748                 ha->tx_tag = NULL;
1749         }
1750
1751         for (i = 0; i < ha->hw.num_tx_rings; i++) {
1752                 bzero((void *)ha->tx_ring[i].tx_buf,
1753                         (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1754         }
1755         return;
1756 }
1757
1758
1759 static int
1760 qla_alloc_rcv_std(qla_host_t *ha)
1761 {
1762         int             i, j, k, r, ret = 0;
1763         qla_rx_buf_t    *rxb;
1764         qla_rx_ring_t   *rx_ring;
1765
1766         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1767
1768                 rx_ring = &ha->rx_ring[r];
1769
1770                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1771
1772                         rxb = &rx_ring->rx_buf[i];
1773
1774                         ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT,
1775                                         &rxb->map);
1776
1777                         if (ret) {
1778                                 device_printf(ha->pci_dev,
1779                                         "%s: dmamap[%d, %d] failed\n",
1780                                         __func__, r, i);
1781
1782                                 for (k = 0; k < r; k++) {
1783                                         for (j = 0; j < NUM_RX_DESCRIPTORS;
1784                                                 j++) {
1785                                                 rxb = &ha->rx_ring[k].rx_buf[j];
1786                                                 bus_dmamap_destroy(ha->rx_tag,
1787                                                         rxb->map);
1788                                         }
1789                                 }
1790
1791                                 for (j = 0; j < i; j++) {
1792                                         bus_dmamap_destroy(ha->rx_tag,
1793                                                 rx_ring->rx_buf[j].map);
1794                                 }
1795                                 goto qla_alloc_rcv_std_err;
1796                         }
1797                 }
1798         }
1799
1800         qla_init_hw_rcv_descriptors(ha);
1801
1802
1803         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1804
1805                 rx_ring = &ha->rx_ring[r];
1806
1807                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1808                         rxb = &rx_ring->rx_buf[i];
1809                         rxb->handle = i;
1810                         if (!(ret = ql_get_mbuf(ha, rxb, NULL))) {
1811                                 /*
1812                                  * set the physical address in the
1813                                  * corresponding descriptor entry in the
1814                                  * receive ring/queue for the hba
1815                                  */
1816                                 qla_set_hw_rcv_desc(ha, r, i, rxb->handle,
1817                                         rxb->paddr,
1818                                         (rxb->m_head)->m_pkthdr.len);
1819                         } else {
1820                                 device_printf(ha->pci_dev,
1821                                         "%s: ql_get_mbuf [%d, %d] failed\n",
1822                                         __func__, r, i);
1823                                 bus_dmamap_destroy(ha->rx_tag, rxb->map);
1824                                 goto qla_alloc_rcv_std_err;
1825                         }
1826                 }
1827         }
1828         return 0;
1829
1830 qla_alloc_rcv_std_err:
1831         return (-1);
1832 }
1833
1834 static void
1835 qla_free_rcv_std(qla_host_t *ha)
1836 {
1837         int             i, r;
1838         qla_rx_buf_t    *rxb;
1839
1840         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1841                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1842                         rxb = &ha->rx_ring[r].rx_buf[i];
1843                         if (rxb->m_head != NULL) {
1844                                 bus_dmamap_unload(ha->rx_tag, rxb->map);
1845                                 bus_dmamap_destroy(ha->rx_tag, rxb->map);
1846                                 m_freem(rxb->m_head);
1847                                 rxb->m_head = NULL;
1848                         }
1849                 }
1850         }
1851         return;
1852 }
1853
1854 static int
1855 qla_alloc_rcv_bufs(qla_host_t *ha)
1856 {
1857         int             i, ret = 0;
1858
1859         if (bus_dma_tag_create(NULL,    /* parent */
1860                         1, 0,    /* alignment, bounds */
1861                         BUS_SPACE_MAXADDR,       /* lowaddr */
1862                         BUS_SPACE_MAXADDR,       /* highaddr */
1863                         NULL, NULL,      /* filter, filterarg */
1864                         MJUM9BYTES,     /* maxsize */
1865                         1,        /* nsegments */
1866                         MJUM9BYTES,        /* maxsegsize */
1867                         BUS_DMA_ALLOCNOW,        /* flags */
1868                         NULL,    /* lockfunc */
1869                         NULL,    /* lockfuncarg */
1870                         &ha->rx_tag)) {
1871
1872                 device_printf(ha->pci_dev, "%s: rx_tag alloc failed\n",
1873                         __func__);
1874
1875                 return (ENOMEM);
1876         }
1877
1878         bzero((void *)ha->rx_ring, (sizeof(qla_rx_ring_t) * MAX_RDS_RINGS));
1879
1880         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1881                 ha->hw.sds[i].sdsr_next = 0;
1882                 ha->hw.sds[i].rxb_free = NULL;
1883                 ha->hw.sds[i].rx_free = 0;
1884         }
1885
1886         ret = qla_alloc_rcv_std(ha);
1887
1888         return (ret);
1889 }
1890
1891 static void
1892 qla_free_rcv_bufs(qla_host_t *ha)
1893 {
1894         int             i;
1895
1896         qla_free_rcv_std(ha);
1897
1898         if (ha->rx_tag != NULL) {
1899                 bus_dma_tag_destroy(ha->rx_tag);
1900                 ha->rx_tag = NULL;
1901         }
1902
1903         bzero((void *)ha->rx_ring, (sizeof(qla_rx_ring_t) * MAX_RDS_RINGS));
1904
1905         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1906                 ha->hw.sds[i].sdsr_next = 0;
1907                 ha->hw.sds[i].rxb_free = NULL;
1908                 ha->hw.sds[i].rx_free = 0;
1909         }
1910
1911         return;
1912 }
1913
1914 int
1915 ql_get_mbuf(qla_host_t *ha, qla_rx_buf_t *rxb, struct mbuf *nmp)
1916 {
1917         register struct mbuf *mp = nmp;
1918         struct ifnet            *ifp;
1919         int                     ret = 0;
1920         uint32_t                offset;
1921         bus_dma_segment_t       segs[1];
1922         int                     nsegs, mbuf_size;
1923
1924         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1925
1926         ifp = ha->ifp;
1927
1928         if (ha->hw.enable_9kb)
1929                 mbuf_size = MJUM9BYTES;
1930         else
1931                 mbuf_size = MCLBYTES;
1932
1933         if (mp == NULL) {
1934
1935                 if (QL_ERR_INJECT(ha, INJCT_M_GETCL_M_GETJCL_FAILURE))
1936                         return(-1);
1937
1938                 if (ha->hw.enable_9kb)
1939                         mp = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, mbuf_size);
1940                 else
1941                         mp = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1942
1943                 if (mp == NULL) {
1944                         ha->err_m_getcl++;
1945                         ret = ENOBUFS;
1946                         device_printf(ha->pci_dev,
1947                                         "%s: m_getcl failed\n", __func__);
1948                         goto exit_ql_get_mbuf;
1949                 }
1950                 mp->m_len = mp->m_pkthdr.len = mbuf_size;
1951         } else {
1952                 mp->m_len = mp->m_pkthdr.len = mbuf_size;
1953                 mp->m_data = mp->m_ext.ext_buf;
1954                 mp->m_next = NULL;
1955         }
1956
1957         offset = (uint32_t)((unsigned long long)mp->m_data & 0x7ULL);
1958         if (offset) {
1959                 offset = 8 - offset;
1960                 m_adj(mp, offset);
1961         }
1962
1963         /*
1964          * Using memory from the mbuf cluster pool, invoke the bus_dma
1965          * machinery to arrange the memory mapping.
1966          */
1967         ret = bus_dmamap_load_mbuf_sg(ha->rx_tag, rxb->map,
1968                         mp, segs, &nsegs, BUS_DMA_NOWAIT);
1969         rxb->paddr = segs[0].ds_addr;
1970
1971         if (ret || !rxb->paddr || (nsegs != 1)) {
1972                 m_free(mp);
1973                 rxb->m_head = NULL;
1974                 device_printf(ha->pci_dev,
1975                         "%s: bus_dmamap_load failed[%d, 0x%016llx, %d]\n",
1976                         __func__, ret, (long long unsigned int)rxb->paddr,
1977                         nsegs);
1978                 ret = -1;
1979                 goto exit_ql_get_mbuf;
1980         }
1981         rxb->m_head = mp;
1982         bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_PREREAD);
1983
1984 exit_ql_get_mbuf:
1985         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit ret = 0x%08x\n", __func__, ret));
1986         return (ret);
1987 }
1988
1989
1990 static void
1991 qla_get_peer(qla_host_t *ha)
1992 {
1993         device_t *peers;
1994         int count, i, slot;
1995         int my_slot = pci_get_slot(ha->pci_dev);
1996
1997         if (device_get_children(device_get_parent(ha->pci_dev), &peers, &count))
1998                 return;
1999
2000         for (i = 0; i < count; i++) {
2001                 slot = pci_get_slot(peers[i]);
2002
2003                 if ((slot >= 0) && (slot == my_slot) &&
2004                         (pci_get_device(peers[i]) ==
2005                                 pci_get_device(ha->pci_dev))) {
2006                         if (ha->pci_dev != peers[i])
2007                                 ha->peer_dev = peers[i];
2008                 }
2009         }
2010 }
2011
2012 static void
2013 qla_send_msg_to_peer(qla_host_t *ha, uint32_t msg_to_peer)
2014 {
2015         qla_host_t *ha_peer;
2016
2017         if (ha->peer_dev) {
2018                 if ((ha_peer = device_get_softc(ha->peer_dev)) != NULL) {
2019
2020                         ha_peer->msg_from_peer = msg_to_peer;
2021                 }
2022         }
2023 }
2024
2025 static void
2026 qla_error_recovery(void *context, int pending)
2027 {
2028         qla_host_t *ha = context;
2029         uint32_t msecs_100 = 100;
2030         struct ifnet *ifp = ha->ifp;
2031         int i = 0;
2032
2033 device_printf(ha->pci_dev, "%s: \n", __func__);
2034         ha->hw.imd_compl = 1;
2035
2036         if (QLA_LOCK(ha, __func__, -1, 0) != 0)
2037                 return;
2038
2039 device_printf(ha->pci_dev, "%s: enter\n", __func__);
2040
2041         if (ha->qla_interface_up) {
2042
2043                 qla_mdelay(__func__, 300);
2044
2045                 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
2046
2047                 for (i = 0; i < ha->hw.num_sds_rings; i++) {
2048                         qla_tx_fp_t *fp;
2049
2050                         fp = &ha->tx_fp[i];
2051
2052                         if (fp == NULL)
2053                                 continue;
2054
2055                         if (fp->tx_br != NULL) {
2056                                 mtx_lock(&fp->tx_mtx);
2057                                 mtx_unlock(&fp->tx_mtx);
2058                         }
2059                 }
2060         }
2061
2062
2063         qla_drain_fp_taskqueues(ha);
2064
2065         if ((ha->pci_func & 0x1) == 0) {
2066
2067                 if (!ha->msg_from_peer) {
2068                         qla_send_msg_to_peer(ha, QL_PEER_MSG_RESET);
2069
2070                         while ((ha->msg_from_peer != QL_PEER_MSG_ACK) &&
2071                                 msecs_100--)
2072                                 qla_mdelay(__func__, 100);
2073                 }
2074
2075                 ha->msg_from_peer = 0;
2076
2077                 if (ha->enable_minidump)
2078                         ql_minidump(ha);
2079
2080                 (void) ql_init_hw(ha);
2081
2082                 if (ha->qla_interface_up) {
2083                         qla_free_xmt_bufs(ha);
2084                         qla_free_rcv_bufs(ha);
2085                 }
2086
2087                 qla_send_msg_to_peer(ha, QL_PEER_MSG_ACK);
2088
2089         } else {
2090                 if (ha->msg_from_peer == QL_PEER_MSG_RESET) {
2091
2092                         ha->msg_from_peer = 0;
2093
2094                         qla_send_msg_to_peer(ha, QL_PEER_MSG_ACK);
2095                 } else {
2096                         qla_send_msg_to_peer(ha, QL_PEER_MSG_RESET);
2097                 }
2098
2099                 while ((ha->msg_from_peer != QL_PEER_MSG_ACK)  && msecs_100--)
2100                         qla_mdelay(__func__, 100);
2101                 ha->msg_from_peer = 0;
2102
2103                 (void) ql_init_hw(ha);
2104
2105                 qla_mdelay(__func__, 1000);
2106
2107                 if (ha->qla_interface_up) {
2108                         qla_free_xmt_bufs(ha);
2109                         qla_free_rcv_bufs(ha);
2110                 }
2111         }
2112
2113         if (ha->qla_interface_up) {
2114
2115                 if (qla_alloc_xmt_bufs(ha) != 0) {
2116                         goto qla_error_recovery_exit;
2117                 }
2118                 qla_confirm_9kb_enable(ha);
2119
2120                 if (qla_alloc_rcv_bufs(ha) != 0) {
2121                         goto qla_error_recovery_exit;
2122                 }
2123
2124                 ha->stop_rcv = 0;
2125
2126                 if (ql_init_hw_if(ha) == 0) {
2127                         ifp = ha->ifp;
2128                         ifp->if_drv_flags |= IFF_DRV_RUNNING;
2129                         ha->qla_watchdog_pause = 0;
2130                 }
2131         } else
2132                 ha->qla_watchdog_pause = 0;
2133
2134 qla_error_recovery_exit:
2135
2136 device_printf(ha->pci_dev, "%s: exit\n", __func__);
2137
2138         QLA_UNLOCK(ha, __func__);
2139
2140         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
2141                 qla_watchdog, ha);
2142         return;
2143 }
2144
2145 static void
2146 qla_async_event(void *context, int pending)
2147 {
2148         qla_host_t *ha = context;
2149
2150         if (QLA_LOCK(ha, __func__, -1, 0) != 0)
2151                 return;
2152
2153         if (ha->async_event) {
2154                 ha->async_event = 0;
2155                 qla_hw_async_event(ha);
2156         }
2157
2158         QLA_UNLOCK(ha, __func__);
2159
2160         return;
2161 }
2162
2163 static void
2164 qla_stats(void *context, int pending)
2165 {
2166         qla_host_t *ha;
2167
2168         ha = context;
2169
2170         ql_get_stats(ha);
2171         return;
2172 }
2173