sys/dev/qlxgbe/ql_os.c

   1 /*
   2  * Copyright (c) 2013-2016 Qlogic Corporation
   3  * All rights reserved.
   4  *
   5  *  Redistribution and use in source and binary forms, with or without
   6  *  modification, are permitted provided that the following conditions
   7  *  are met:
   8  *
   9  *  1. Redistributions of source code must retain the above copyright
  10  *     notice, this list of conditions and the following disclaimer.
  11  *  2. Redistributions in binary form must reproduce the above copyright
  12  *     notice, this list of conditions and the following disclaimer in the
  13  *     documentation and/or other materials provided with the distribution.
  14  *
  15  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  16  *  and ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  19  *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  20  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  21  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  22  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  23  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  24  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  25  *  POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 /*
  29  * File: ql_os.c
  30  * Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __FBSDID("$FreeBSD$");
  35
  36
  37 #include "ql_os.h"
  38 #include "ql_hw.h"
  39 #include "ql_def.h"
  40 #include "ql_inline.h"
  41 #include "ql_ver.h"
  42 #include "ql_glbl.h"
  43 #include "ql_dbg.h"
  44 #include <sys/smp.h>
  45
  46 /*
  47  * Some PCI Configuration Space Related Defines
  48  */
  49
  50 #ifndef PCI_VENDOR_QLOGIC
  51 #define PCI_VENDOR_QLOGIC       0x1077
  52 #endif
  53
  54 #ifndef PCI_PRODUCT_QLOGIC_ISP8030
  55 #define PCI_PRODUCT_QLOGIC_ISP8030      0x8030
  56 #endif
  57
  58 #define PCI_QLOGIC_ISP8030 \
  59         ((PCI_PRODUCT_QLOGIC_ISP8030 << 16) | PCI_VENDOR_QLOGIC)
  60
  61 /*
  62  * static functions
  63  */
  64 static int qla_alloc_parent_dma_tag(qla_host_t *ha);
  65 static void qla_free_parent_dma_tag(qla_host_t *ha);
  66 static int qla_alloc_xmt_bufs(qla_host_t *ha);
  67 static void qla_free_xmt_bufs(qla_host_t *ha);
  68 static int qla_alloc_rcv_bufs(qla_host_t *ha);
  69 static void qla_free_rcv_bufs(qla_host_t *ha);
  70 static void qla_clear_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb);
  71
  72 static void qla_init_ifnet(device_t dev, qla_host_t *ha);
  73 static int qla_sysctl_get_stats(SYSCTL_HANDLER_ARGS);
  74 static int qla_sysctl_get_link_status(SYSCTL_HANDLER_ARGS);
  75 static void qla_release(qla_host_t *ha);
  76 static void qla_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs,
  77                 int error);
  78 static void qla_stop(qla_host_t *ha);
  79 static int qla_send(qla_host_t *ha, struct mbuf **m_headp);
  80 static void qla_tx_done(void *context, int pending);
  81 static void qla_get_peer(qla_host_t *ha);
  82 static void qla_error_recovery(void *context, int pending);
  83 static void qla_async_event(void *context, int pending);
  84
  85 /*
  86  * Hooks to the Operating Systems
  87  */
  88 static int qla_pci_probe (device_t);
  89 static int qla_pci_attach (device_t);
  90 static int qla_pci_detach (device_t);
  91
  92 static void qla_init(void *arg);
  93 static int qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data);
  94 static int qla_media_change(struct ifnet *ifp);
  95 static void qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr);
  96 static void qla_start(struct ifnet *ifp);
  97
  98 static device_method_t qla_pci_methods[] = {
  99         /* Device interface */
 100         DEVMETHOD(device_probe, qla_pci_probe),
 101         DEVMETHOD(device_attach, qla_pci_attach),
 102         DEVMETHOD(device_detach, qla_pci_detach),
 103         { 0, 0 }
 104 };
 105
 106 static driver_t qla_pci_driver = {
 107         "ql", qla_pci_methods, sizeof (qla_host_t),
 108 };
 109
 110 static devclass_t qla83xx_devclass;
 111
 112 DRIVER_MODULE(qla83xx, pci, qla_pci_driver, qla83xx_devclass, 0, 0);
 113
 114 MODULE_DEPEND(qla83xx, pci, 1, 1, 1);
 115 MODULE_DEPEND(qla83xx, ether, 1, 1, 1);
 116
 117 MALLOC_DEFINE(M_QLA83XXBUF, "qla83xxbuf", "Buffers for qla83xx driver");
 118
 119 #define QL_STD_REPLENISH_THRES          0
 120 #define QL_JUMBO_REPLENISH_THRES        32
 121
 122
 123 static char dev_str[64];
 124 static char ver_str[64];
 125
 126 /*
 127  * Name:        qla_pci_probe
 128  * Function:    Validate the PCI device to be a QLA80XX device
 129  */
 130 static int
 131 qla_pci_probe(device_t dev)
 132 {
 133         switch ((pci_get_device(dev) << 16) | (pci_get_vendor(dev))) {
 134         case PCI_QLOGIC_ISP8030:
 135                 snprintf(dev_str, sizeof(dev_str), "%s v%d.%d.%d",
 136                         "Qlogic ISP 83xx PCI CNA Adapter-Ethernet Function",
 137                         QLA_VERSION_MAJOR, QLA_VERSION_MINOR,
 138                         QLA_VERSION_BUILD);
 139                 snprintf(ver_str, sizeof(ver_str), "v%d.%d.%d",
 140                         QLA_VERSION_MAJOR, QLA_VERSION_MINOR,
 141                         QLA_VERSION_BUILD);
 142                 device_set_desc(dev, dev_str);
 143                 break;
 144         default:
 145                 return (ENXIO);
 146         }
 147
 148         if (bootverbose)
 149                 printf("%s: %s\n ", __func__, dev_str);
 150
 151         return (BUS_PROBE_DEFAULT);
 152 }
 153
 154 static void
 155 qla_add_sysctls(qla_host_t *ha)
 156 {
 157         device_t dev = ha->pci_dev;
 158
 159         SYSCTL_ADD_STRING(device_get_sysctl_ctx(dev),
 160                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 161                 OID_AUTO, "version", CTLFLAG_RD,
 162                 ver_str, 0, "Driver Version");
 163
 164         SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
 165                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 166                 OID_AUTO, "stats", CTLTYPE_INT | CTLFLAG_RW,
 167                 (void *)ha, 0,
 168                 qla_sysctl_get_stats, "I", "Statistics");
 169
 170         SYSCTL_ADD_STRING(device_get_sysctl_ctx(dev),
 171                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 172                 OID_AUTO, "fw_version", CTLFLAG_RD,
 173                 ha->fw_ver_str, 0, "firmware version");
 174
 175         SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
 176                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 177                 OID_AUTO, "link_status", CTLTYPE_INT | CTLFLAG_RW,
 178                 (void *)ha, 0,
 179                 qla_sysctl_get_link_status, "I", "Link Status");
 180
 181         ha->dbg_level = 0;
 182         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 183                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 184                 OID_AUTO, "debug", CTLFLAG_RW,
 185                 &ha->dbg_level, ha->dbg_level, "Debug Level");
 186
 187         ha->std_replenish = QL_STD_REPLENISH_THRES;
 188         SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
 189                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 190                 OID_AUTO, "std_replenish", CTLFLAG_RW,
 191                 &ha->std_replenish, ha->std_replenish,
 192                 "Threshold for Replenishing Standard Frames");
 193
 194         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 195                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 196                 OID_AUTO, "ipv4_lro",
 197                 CTLFLAG_RD, &ha->ipv4_lro,
 198                 "number of ipv4 lro completions");
 199
 200         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 201                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 202                 OID_AUTO, "ipv6_lro",
 203                 CTLFLAG_RD, &ha->ipv6_lro,
 204                 "number of ipv6 lro completions");
 205
 206         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 207                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 208                 OID_AUTO, "tx_tso_frames",
 209                 CTLFLAG_RD, &ha->tx_tso_frames,
 210                 "number of Tx TSO Frames");
 211
 212         SYSCTL_ADD_QUAD(device_get_sysctl_ctx(dev),
 213                 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
 214                 OID_AUTO, "hw_vlan_tx_frames",
 215                 CTLFLAG_RD, &ha->hw_vlan_tx_frames,
 216                 "number of Tx VLAN Frames");
 217
 218         return;
 219 }
 220
 221 static void
 222 qla_watchdog(void *arg)
 223 {
 224         qla_host_t *ha = arg;
 225         qla_hw_t *hw;
 226         struct ifnet *ifp;
 227         uint32_t i;
 228         qla_hw_tx_cntxt_t *hw_tx_cntxt;
 229
 230         hw = &ha->hw;
 231         ifp = ha->ifp;
 232
 233         if (ha->flags.qla_watchdog_exit) {
 234                 ha->qla_watchdog_exited = 1;
 235                 return;
 236         }
 237         ha->qla_watchdog_exited = 0;
 238
 239         if (!ha->flags.qla_watchdog_pause) {
 240                 if (ql_hw_check_health(ha) || ha->qla_initiate_recovery ||
 241                         (ha->msg_from_peer == QL_PEER_MSG_RESET)) {
 242                         ha->qla_watchdog_paused = 1;
 243                         ha->flags.qla_watchdog_pause = 1;
 244                         ha->qla_initiate_recovery = 0;
 245                         ha->err_inject = 0;
 246                         taskqueue_enqueue(ha->err_tq, &ha->err_task);
 247                 } else {
 248
 249                         if (ha->async_event) {
 250                                 ha->async_event = 0;
 251                                 taskqueue_enqueue(ha->async_event_tq,
 252                                         &ha->async_event_task);
 253                         }
 254
 255                         for (i = 0; i < ha->hw.num_tx_rings; i++) {
 256                                 hw_tx_cntxt = &hw->tx_cntxt[i];
 257                                 if (qla_le32_to_host(*(hw_tx_cntxt->tx_cons)) !=
 258                                         hw_tx_cntxt->txr_comp) {
 259                                         taskqueue_enqueue(ha->tx_tq,
 260                                                 &ha->tx_task);
 261                                         break;
 262                                 }
 263                         }
 264
 265                         if ((ifp->if_snd.ifq_head != NULL) && QL_RUNNING(ifp)) {
 266                                 taskqueue_enqueue(ha->tx_tq, &ha->tx_task);
 267                         }
 268                         ha->qla_watchdog_paused = 0;
 269                 }
 270
 271         } else {
 272                 ha->qla_watchdog_paused = 1;
 273         }
 274
 275         ha->watchdog_ticks = ha->watchdog_ticks++ % 1000;
 276         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 277                 qla_watchdog, ha);
 278 }
 279
 280 /*
 281  * Name:        qla_pci_attach
 282  * Function:    attaches the device to the operating system
 283  */
 284 static int
 285 qla_pci_attach(device_t dev)
 286 {
 287         qla_host_t *ha = NULL;
 288         uint32_t rsrc_len;
 289         int i;
 290         uint32_t num_rcvq = 0;
 291
 292         if ((ha = device_get_softc(dev)) == NULL) {
 293                 device_printf(dev, "cannot get softc\n");
 294                 return (ENOMEM);
 295         }
 296
 297         memset(ha, 0, sizeof (qla_host_t));
 298
 299         if (pci_get_device(dev) != PCI_PRODUCT_QLOGIC_ISP8030) {
 300                 device_printf(dev, "device is not ISP8030\n");
 301                 return (ENXIO);
 302         }
 303
 304         ha->pci_func = pci_get_function(dev);
 305
 306         ha->pci_dev = dev;
 307
 308         pci_enable_busmaster(dev);
 309
 310         ha->reg_rid = PCIR_BAR(0);
 311         ha->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ha->reg_rid,
 312                                 RF_ACTIVE);
 313
 314         if (ha->pci_reg == NULL) {
 315                 device_printf(dev, "unable to map any ports\n");
 316                 goto qla_pci_attach_err;
 317         }
 318
 319         rsrc_len = (uint32_t) bus_get_resource_count(dev, SYS_RES_MEMORY,
 320                                         ha->reg_rid);
 321
 322         mtx_init(&ha->hw_lock, "qla83xx_hw_lock", MTX_NETWORK_LOCK, MTX_DEF);
 323
 324         mtx_init(&ha->tx_lock, "qla83xx_tx_lock", MTX_NETWORK_LOCK, MTX_DEF);
 325
 326         qla_add_sysctls(ha);
 327         ql_hw_add_sysctls(ha);
 328
 329         ha->flags.lock_init = 1;
 330
 331         ha->reg_rid1 = PCIR_BAR(2);
 332         ha->pci_reg1 = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
 333                         &ha->reg_rid1, RF_ACTIVE);
 334
 335         ha->msix_count = pci_msix_count(dev);
 336
 337         if (ha->msix_count < (ha->hw.num_sds_rings + 1)) {
 338                 device_printf(dev, "%s: msix_count[%d] not enough\n", __func__,
 339                         ha->msix_count);
 340                 goto qla_pci_attach_err;
 341         }
 342
 343         QL_DPRINT2(ha, (dev, "%s: ha %p pci_func 0x%x rsrc_count 0x%08x"
 344                 " msix_count 0x%x pci_reg %p\n", __func__, ha,
 345                 ha->pci_func, rsrc_len, ha->msix_count, ha->pci_reg));
 346
 347         /* initialize hardware */
 348         if (ql_init_hw(ha)) {
 349                 device_printf(dev, "%s: ql_init_hw failed\n", __func__);
 350                 goto qla_pci_attach_err;
 351         }
 352
 353         device_printf(dev, "%s: firmware[%d.%d.%d.%d]\n", __func__,
 354                 ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 355                 ha->fw_ver_build);
 356         snprintf(ha->fw_ver_str, sizeof(ha->fw_ver_str), "%d.%d.%d.%d",
 357                         ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 358                         ha->fw_ver_build);
 359
 360         if (qla_get_nic_partition(ha, NULL, &num_rcvq)) {
 361                 device_printf(dev, "%s: qla_get_nic_partition failed\n",
 362                         __func__);
 363                 goto qla_pci_attach_err;
 364         }
 365         device_printf(dev, "%s: ha %p pci_func 0x%x rsrc_count 0x%08x"
 366                 " msix_count 0x%x pci_reg %p num_rcvq = %d\n", __func__, ha,
 367                 ha->pci_func, rsrc_len, ha->msix_count, ha->pci_reg, num_rcvq);
 368
 369
 370 #ifdef QL_ENABLE_ISCSI_TLV
 371         if ((ha->msix_count  < 64) || (num_rcvq != 32)) {
 372                 ha->hw.num_sds_rings = 15;
 373                 ha->hw.num_tx_rings = 32;
 374         }
 375 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
 376         ha->hw.num_rds_rings = ha->hw.num_sds_rings;
 377
 378         ha->msix_count = ha->hw.num_sds_rings + 1;
 379
 380         if (pci_alloc_msix(dev, &ha->msix_count)) {
 381                 device_printf(dev, "%s: pci_alloc_msi[%d] failed\n", __func__,
 382                         ha->msix_count);
 383                 ha->msix_count = 0;
 384                 goto qla_pci_attach_err;
 385         }
 386
 387         ha->mbx_irq_rid = 1;
 388         ha->mbx_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 389                                 &ha->mbx_irq_rid,
 390                                 (RF_ACTIVE | RF_SHAREABLE));
 391         if (ha->mbx_irq == NULL) {
 392                 device_printf(dev, "could not allocate mbx interrupt\n");
 393                 goto qla_pci_attach_err;
 394         }
 395         if (bus_setup_intr(dev, ha->mbx_irq, (INTR_TYPE_NET | INTR_MPSAFE),
 396                 NULL, ql_mbx_isr, ha, &ha->mbx_handle)) {
 397                 device_printf(dev, "could not setup mbx interrupt\n");
 398                 goto qla_pci_attach_err;
 399         }
 400
 401
 402         for (i = 0; i < ha->hw.num_sds_rings; i++) {
 403                 ha->irq_vec[i].sds_idx = i;
 404                 ha->irq_vec[i].ha = ha;
 405                 ha->irq_vec[i].irq_rid = 2 + i;
 406
 407                 ha->irq_vec[i].irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 408                                 &ha->irq_vec[i].irq_rid,
 409                                 (RF_ACTIVE | RF_SHAREABLE));
 410
 411                 if (ha->irq_vec[i].irq == NULL) {
 412                         device_printf(dev, "could not allocate interrupt\n");
 413                         goto qla_pci_attach_err;
 414                 }
 415                 if (bus_setup_intr(dev, ha->irq_vec[i].irq,
 416                         (INTR_TYPE_NET | INTR_MPSAFE),
 417                         NULL, ql_isr, &ha->irq_vec[i],
 418                         &ha->irq_vec[i].handle)) {
 419                         device_printf(dev, "could not setup interrupt\n");
 420                         goto qla_pci_attach_err;
 421                 }
 422         }
 423
 424         printf("%s: mp__ncpus %d sds %d rds %d msi-x %d\n", __func__, mp_ncpus,
 425                 ha->hw.num_sds_rings, ha->hw.num_rds_rings, ha->msix_count);
 426
 427         ql_read_mac_addr(ha);
 428
 429         /* allocate parent dma tag */
 430         if (qla_alloc_parent_dma_tag(ha)) {
 431                 device_printf(dev, "%s: qla_alloc_parent_dma_tag failed\n",
 432                         __func__);
 433                 goto qla_pci_attach_err;
 434         }
 435
 436         /* alloc all dma buffers */
 437         if (ql_alloc_dma(ha)) {
 438                 device_printf(dev, "%s: ql_alloc_dma failed\n", __func__);
 439                 goto qla_pci_attach_err;
 440         }
 441         qla_get_peer(ha);
 442
 443         /* create the o.s ethernet interface */
 444         qla_init_ifnet(dev, ha);
 445
 446         ha->flags.qla_watchdog_active = 1;
 447         ha->flags.qla_watchdog_pause = 1;
 448
 449
 450         TASK_INIT(&ha->tx_task, 0, qla_tx_done, ha);
 451         ha->tx_tq = taskqueue_create_fast("qla_txq", M_NOWAIT,
 452                         taskqueue_thread_enqueue, &ha->tx_tq);
 453         taskqueue_start_threads(&ha->tx_tq, 1, PI_NET, "%s txq",
 454                 device_get_nameunit(ha->pci_dev));
 455
 456         callout_init(&ha->tx_callout, 1);
 457         ha->flags.qla_callout_init = 1;
 458
 459         /* create ioctl device interface */
 460         if (ql_make_cdev(ha)) {
 461                 device_printf(dev, "%s: ql_make_cdev failed\n", __func__);
 462                 goto qla_pci_attach_err;
 463         }
 464
 465         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 466                 qla_watchdog, ha);
 467
 468         TASK_INIT(&ha->err_task, 0, qla_error_recovery, ha);
 469         ha->err_tq = taskqueue_create_fast("qla_errq", M_NOWAIT,
 470                         taskqueue_thread_enqueue, &ha->err_tq);
 471         taskqueue_start_threads(&ha->err_tq, 1, PI_NET, "%s errq",
 472                 device_get_nameunit(ha->pci_dev));
 473
 474         TASK_INIT(&ha->async_event_task, 0, qla_async_event, ha);
 475         ha->async_event_tq = taskqueue_create_fast("qla_asyncq", M_NOWAIT,
 476                         taskqueue_thread_enqueue, &ha->async_event_tq);
 477         taskqueue_start_threads(&ha->async_event_tq, 1, PI_NET, "%s asyncq",
 478                 device_get_nameunit(ha->pci_dev));
 479
 480         QL_DPRINT2(ha, (dev, "%s: exit 0\n", __func__));
 481         return (0);
 482
 483 qla_pci_attach_err:
 484
 485         qla_release(ha);
 486
 487         QL_DPRINT2(ha, (dev, "%s: exit ENXIO\n", __func__));
 488         return (ENXIO);
 489 }
 490
 491 /*
 492  * Name:        qla_pci_detach
 493  * Function:    Unhooks the device from the operating system
 494  */
 495 static int
 496 qla_pci_detach(device_t dev)
 497 {
 498         qla_host_t *ha = NULL;
 499         struct ifnet *ifp;
 500
 501         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 502
 503         if ((ha = device_get_softc(dev)) == NULL) {
 504                 device_printf(dev, "cannot get softc\n");
 505                 return (ENOMEM);
 506         }
 507
 508         ifp = ha->ifp;
 509
 510         (void)QLA_LOCK(ha, __func__, 0);
 511         qla_stop(ha);
 512         QLA_UNLOCK(ha, __func__);
 513
 514         qla_release(ha);
 515
 516         QL_DPRINT2(ha, (dev, "%s: exit\n", __func__));
 517
 518         return (0);
 519 }
 520
 521 /*
 522  * SYSCTL Related Callbacks
 523  */
 524 static int
 525 qla_sysctl_get_stats(SYSCTL_HANDLER_ARGS)
 526 {
 527         int err, ret = 0;
 528         qla_host_t *ha;
 529
 530         err = sysctl_handle_int(oidp, &ret, 0, req);
 531
 532         if (err || !req->newptr)
 533                 return (err);
 534
 535         if (ret == 1) {
 536                 ha = (qla_host_t *)arg1;
 537                 ql_get_stats(ha);
 538         }
 539         return (err);
 540 }
 541 static int
 542 qla_sysctl_get_link_status(SYSCTL_HANDLER_ARGS)
 543 {
 544         int err, ret = 0;
 545         qla_host_t *ha;
 546
 547         err = sysctl_handle_int(oidp, &ret, 0, req);
 548
 549         if (err || !req->newptr)
 550                 return (err);
 551
 552         if (ret == 1) {
 553                 ha = (qla_host_t *)arg1;
 554                 ql_hw_link_status(ha);
 555         }
 556         return (err);
 557 }
 558
 559 /*
 560  * Name:        qla_release
 561  * Function:    Releases the resources allocated for the device
 562  */
 563 static void
 564 qla_release(qla_host_t *ha)
 565 {
 566         device_t dev;
 567         int i;
 568
 569         dev = ha->pci_dev;
 570
 571         if (ha->async_event_tq) {
 572                 taskqueue_drain(ha->async_event_tq, &ha->async_event_task);
 573                 taskqueue_free(ha->async_event_tq);
 574         }
 575
 576         if (ha->err_tq) {
 577                 taskqueue_drain(ha->err_tq, &ha->err_task);
 578                 taskqueue_free(ha->err_tq);
 579         }
 580
 581         if (ha->tx_tq) {
 582                 taskqueue_drain(ha->tx_tq, &ha->tx_task);
 583                 taskqueue_free(ha->tx_tq);
 584         }
 585
 586         ql_del_cdev(ha);
 587
 588         if (ha->flags.qla_watchdog_active) {
 589                 ha->flags.qla_watchdog_exit = 1;
 590
 591                 while (ha->qla_watchdog_exited == 0)
 592                         qla_mdelay(__func__, 1);
 593         }
 594
 595         if (ha->flags.qla_callout_init)
 596                 callout_stop(&ha->tx_callout);
 597
 598         if (ha->ifp != NULL)
 599                 ether_ifdetach(ha->ifp);
 600
 601         ql_free_dma(ha);
 602         qla_free_parent_dma_tag(ha);
 603
 604         if (ha->mbx_handle)
 605                 (void)bus_teardown_intr(dev, ha->mbx_irq, ha->mbx_handle);
 606
 607         if (ha->mbx_irq)
 608                 (void) bus_release_resource(dev, SYS_RES_IRQ, ha->mbx_irq_rid,
 609                                 ha->mbx_irq);
 610
 611         for (i = 0; i < ha->hw.num_sds_rings; i++) {
 612
 613                 if (ha->irq_vec[i].handle) {
 614                         (void)bus_teardown_intr(dev, ha->irq_vec[i].irq,
 615                                         ha->irq_vec[i].handle);
 616                 }
 617
 618                 if (ha->irq_vec[i].irq) {
 619                         (void)bus_release_resource(dev, SYS_RES_IRQ,
 620                                 ha->irq_vec[i].irq_rid,
 621                                 ha->irq_vec[i].irq);
 622                 }
 623         }
 624
 625         if (ha->msix_count)
 626                 pci_release_msi(dev);
 627
 628         if (ha->flags.lock_init) {
 629                 mtx_destroy(&ha->tx_lock);
 630                 mtx_destroy(&ha->hw_lock);
 631         }
 632
 633         if (ha->pci_reg)
 634                 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid,
 635                                 ha->pci_reg);
 636
 637         if (ha->pci_reg1)
 638                 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid1,
 639                                 ha->pci_reg1);
 640 }
 641
 642 /*
 643  * DMA Related Functions
 644  */
 645
 646 static void
 647 qla_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 648 {
 649         *((bus_addr_t *)arg) = 0;
 650
 651         if (error) {
 652                 printf("%s: bus_dmamap_load failed (%d)\n", __func__, error);
 653                 return;
 654         }
 655
 656         *((bus_addr_t *)arg) = segs[0].ds_addr;
 657
 658         return;
 659 }
 660
 661 int
 662 ql_alloc_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 663 {
 664         int             ret = 0;
 665         device_t        dev;
 666         bus_addr_t      b_addr;
 667
 668         dev = ha->pci_dev;
 669
 670         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 671
 672         ret = bus_dma_tag_create(
 673                         ha->parent_tag,/* parent */
 674                         dma_buf->alignment,
 675                         ((bus_size_t)(1ULL << 32)),/* boundary */
 676                         BUS_SPACE_MAXADDR,      /* lowaddr */
 677                         BUS_SPACE_MAXADDR,      /* highaddr */
 678                         NULL, NULL,             /* filter, filterarg */
 679                         dma_buf->size,          /* maxsize */
 680                         1,                      /* nsegments */
 681                         dma_buf->size,          /* maxsegsize */
 682                         0,                      /* flags */
 683                         NULL, NULL,             /* lockfunc, lockarg */
 684                         &dma_buf->dma_tag);
 685
 686         if (ret) {
 687                 device_printf(dev, "%s: could not create dma tag\n", __func__);
 688                 goto ql_alloc_dmabuf_exit;
 689         }
 690         ret = bus_dmamem_alloc(dma_buf->dma_tag,
 691                         (void **)&dma_buf->dma_b,
 692                         (BUS_DMA_ZERO | BUS_DMA_COHERENT | BUS_DMA_NOWAIT),
 693                         &dma_buf->dma_map);
 694         if (ret) {
 695                 bus_dma_tag_destroy(dma_buf->dma_tag);
 696                 device_printf(dev, "%s: bus_dmamem_alloc failed\n", __func__);
 697                 goto ql_alloc_dmabuf_exit;
 698         }
 699
 700         ret = bus_dmamap_load(dma_buf->dma_tag,
 701                         dma_buf->dma_map,
 702                         dma_buf->dma_b,
 703                         dma_buf->size,
 704                         qla_dmamap_callback,
 705                         &b_addr, BUS_DMA_NOWAIT);
 706
 707         if (ret || !b_addr) {
 708                 bus_dma_tag_destroy(dma_buf->dma_tag);
 709                 bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b,
 710                         dma_buf->dma_map);
 711                 ret = -1;
 712                 goto ql_alloc_dmabuf_exit;
 713         }
 714
 715         dma_buf->dma_addr = b_addr;
 716
 717 ql_alloc_dmabuf_exit:
 718         QL_DPRINT2(ha, (dev, "%s: exit ret 0x%08x tag %p map %p b %p sz 0x%x\n",
 719                 __func__, ret, (void *)dma_buf->dma_tag,
 720                 (void *)dma_buf->dma_map, (void *)dma_buf->dma_b,
 721                 dma_buf->size));
 722
 723         return ret;
 724 }
 725
 726 void
 727 ql_free_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 728 {
 729         bus_dmamap_unload(dma_buf->dma_tag, dma_buf->dma_map);
 730         bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b, dma_buf->dma_map);
 731         bus_dma_tag_destroy(dma_buf->dma_tag);
 732 }
 733
 734 static int
 735 qla_alloc_parent_dma_tag(qla_host_t *ha)
 736 {
 737         int             ret;
 738         device_t        dev;
 739
 740         dev = ha->pci_dev;
 741
 742         /*
 743          * Allocate parent DMA Tag
 744          */
 745         ret = bus_dma_tag_create(
 746                         bus_get_dma_tag(dev),   /* parent */
 747                         1,((bus_size_t)(1ULL << 32)),/* alignment, boundary */
 748                         BUS_SPACE_MAXADDR,      /* lowaddr */
 749                         BUS_SPACE_MAXADDR,      /* highaddr */
 750                         NULL, NULL,             /* filter, filterarg */
 751                         BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
 752                         0,                      /* nsegments */
 753                         BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
 754                         0,                      /* flags */
 755                         NULL, NULL,             /* lockfunc, lockarg */
 756                         &ha->parent_tag);
 757
 758         if (ret) {
 759                 device_printf(dev, "%s: could not create parent dma tag\n",
 760                         __func__);
 761                 return (-1);
 762         }
 763
 764         ha->flags.parent_tag = 1;
 765
 766         return (0);
 767 }
 768
 769 static void
 770 qla_free_parent_dma_tag(qla_host_t *ha)
 771 {
 772         if (ha->flags.parent_tag) {
 773                 bus_dma_tag_destroy(ha->parent_tag);
 774                 ha->flags.parent_tag = 0;
 775         }
 776 }
 777
 778 /*
 779  * Name: qla_init_ifnet
 780  * Function: Creates the Network Device Interface and Registers it with the O.S
 781  */
 782
 783 static void
 784 qla_init_ifnet(device_t dev, qla_host_t *ha)
 785 {
 786         struct ifnet *ifp;
 787
 788         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 789
 790         ifp = ha->ifp = if_alloc(IFT_ETHER);
 791
 792         if (ifp == NULL)
 793                 panic("%s: cannot if_alloc()\n", device_get_nameunit(dev));
 794
 795         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 796
 797         ifp->if_baudrate = IF_Gbps(10);
 798         ifp->if_capabilities = IFCAP_LINKSTATE;
 799
 800         ifp->if_init = qla_init;
 801         ifp->if_softc = ha;
 802         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 803         ifp->if_ioctl = qla_ioctl;
 804         ifp->if_start = qla_start;
 805
 806         IFQ_SET_MAXLEN(&ifp->if_snd, qla_get_ifq_snd_maxlen(ha));
 807         ifp->if_snd.ifq_drv_maxlen = qla_get_ifq_snd_maxlen(ha);
 808         IFQ_SET_READY(&ifp->if_snd);
 809
 810         ha->max_frame_size = ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 811
 812         ether_ifattach(ifp, qla_get_mac_addr(ha));
 813
 814         ifp->if_capabilities = IFCAP_HWCSUM |
 815                                 IFCAP_TSO4 |
 816                                 IFCAP_JUMBO_MTU;
 817
 818         ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
 819         ifp->if_capabilities |= IFCAP_VLAN_HWTSO;
 820
 821         ifp->if_capenable = ifp->if_capabilities;
 822
 823         ifp->if_hdrlen = sizeof(struct ether_vlan_header);
 824
 825         ifmedia_init(&ha->media, IFM_IMASK, qla_media_change, qla_media_status);
 826
 827         ifmedia_add(&ha->media, (IFM_ETHER | qla_get_optics(ha) | IFM_FDX), 0,
 828                 NULL);
 829         ifmedia_add(&ha->media, (IFM_ETHER | IFM_AUTO), 0, NULL);
 830
 831         ifmedia_set(&ha->media, (IFM_ETHER | IFM_AUTO));
 832
 833         QL_DPRINT2(ha, (dev, "%s: exit\n", __func__));
 834
 835         return;
 836 }
 837
 838 static void
 839 qla_init_locked(qla_host_t *ha)
 840 {
 841         struct ifnet *ifp = ha->ifp;
 842
 843         qla_stop(ha);
 844
 845         if (qla_alloc_xmt_bufs(ha) != 0)
 846                 return;
 847
 848         qla_confirm_9kb_enable(ha);
 849
 850         if (qla_alloc_rcv_bufs(ha) != 0)
 851                 return;
 852
 853         bcopy(IF_LLADDR(ha->ifp), ha->hw.mac_addr, ETHER_ADDR_LEN);
 854
 855         ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_TSO;
 856
 857         ha->flags.stop_rcv = 0;
 858         if (ql_init_hw_if(ha) == 0) {
 859                 ifp = ha->ifp;
 860                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
 861                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 862                 ha->flags.qla_watchdog_pause = 0;
 863                 ha->hw_vlan_tx_frames = 0;
 864                 ha->tx_tso_frames = 0;
 865         }
 866
 867         return;
 868 }
 869
 870 static void
 871 qla_init(void *arg)
 872 {
 873         qla_host_t *ha;
 874
 875         ha = (qla_host_t *)arg;
 876
 877         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
 878
 879         (void)QLA_LOCK(ha, __func__, 0);
 880         qla_init_locked(ha);
 881         QLA_UNLOCK(ha, __func__);
 882
 883         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
 884 }
 885
 886 static int
 887 qla_set_multi(qla_host_t *ha, uint32_t add_multi)
 888 {
 889         uint8_t mta[Q8_MAX_NUM_MULTICAST_ADDRS * Q8_MAC_ADDR_LEN];
 890         struct ifmultiaddr *ifma;
 891         int mcnt = 0;
 892         struct ifnet *ifp = ha->ifp;
 893         int ret = 0;
 894
 895         if_maddr_rlock(ifp);
 896
 897         TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 898
 899                 if (ifma->ifma_addr->sa_family != AF_LINK)
 900                         continue;
 901
 902                 if (mcnt == Q8_MAX_NUM_MULTICAST_ADDRS)
 903                         break;
 904
 905                 bcopy(LLADDR((struct sockaddr_dl *) ifma->ifma_addr),
 906                         &mta[mcnt * Q8_MAC_ADDR_LEN], Q8_MAC_ADDR_LEN);
 907
 908                 mcnt++;
 909         }
 910
 911         if_maddr_runlock(ifp);
 912
 913         if (QLA_LOCK(ha, __func__, 1) == 0) {
 914                 ret = ql_hw_set_multi(ha, mta, mcnt, add_multi);
 915                 QLA_UNLOCK(ha, __func__);
 916         }
 917
 918         return (ret);
 919 }
 920
 921 static int
 922 qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 923 {
 924         int ret = 0;
 925         struct ifreq *ifr = (struct ifreq *)data;
 926         struct ifaddr *ifa = (struct ifaddr *)data;
 927         qla_host_t *ha;
 928
 929         ha = (qla_host_t *)ifp->if_softc;
 930
 931         switch (cmd) {
 932         case SIOCSIFADDR:
 933                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFADDR (0x%lx)\n",
 934                         __func__, cmd));
 935
 936                 if (ifa->ifa_addr->sa_family == AF_INET) {
 937                         ifp->if_flags |= IFF_UP;
 938                         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 939                                 (void)QLA_LOCK(ha, __func__, 0);
 940                                 qla_init_locked(ha);
 941                                 QLA_UNLOCK(ha, __func__);
 942                         }
 943                         QL_DPRINT4(ha, (ha->pci_dev,
 944                                 "%s: SIOCSIFADDR (0x%lx) ipv4 [0x%08x]\n",
 945                                 __func__, cmd,
 946                                 ntohl(IA_SIN(ifa)->sin_addr.s_addr)));
 947
 948                         arp_ifinit(ifp, ifa);
 949                 } else {
 950                         ether_ioctl(ifp, cmd, data);
 951                 }
 952                 break;
 953
 954         case SIOCSIFMTU:
 955                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFMTU (0x%lx)\n",
 956                         __func__, cmd));
 957
 958                 if (ifr->ifr_mtu > QLA_MAX_MTU) {
 959                         ret = EINVAL;
 960                 } else {
 961                         (void) QLA_LOCK(ha, __func__, 0);
 962                         ifp->if_mtu = ifr->ifr_mtu;
 963                         ha->max_frame_size =
 964                                 ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 965                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 966                                 ret = ql_set_max_mtu(ha, ha->max_frame_size,
 967                                         ha->hw.rcv_cntxt_id);
 968                         }
 969
 970                         if (ifp->if_mtu > ETHERMTU)
 971                                 ha->std_replenish = QL_JUMBO_REPLENISH_THRES;
 972                         else
 973                                 ha->std_replenish = QL_STD_REPLENISH_THRES;
 974
 975
 976                         QLA_UNLOCK(ha, __func__);
 977
 978                         if (ret)
 979                                 ret = EINVAL;
 980                 }
 981
 982                 break;
 983
 984         case SIOCSIFFLAGS:
 985                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFFLAGS (0x%lx)\n",
 986                         __func__, cmd));
 987
 988                 (void)QLA_LOCK(ha, __func__, 0);
 989
 990                 if (ifp->if_flags & IFF_UP) {
 991                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 992                                 if ((ifp->if_flags ^ ha->if_flags) &
 993                                         IFF_PROMISC) {
 994                                         ret = ql_set_promisc(ha);
 995                                 } else if ((ifp->if_flags ^ ha->if_flags) &
 996                                         IFF_ALLMULTI) {
 997                                         ret = ql_set_allmulti(ha);
 998                                 }
 999                         } else {
1000                                 qla_init_locked(ha);
1001                                 ha->max_frame_size = ifp->if_mtu +
1002                                         ETHER_HDR_LEN + ETHER_CRC_LEN;
1003                                 ret = ql_set_max_mtu(ha, ha->max_frame_size,
1004                                         ha->hw.rcv_cntxt_id);
1005                         }
1006                 } else {
1007                         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1008                                 qla_stop(ha);
1009                         ha->if_flags = ifp->if_flags;
1010                 }
1011
1012                 QLA_UNLOCK(ha, __func__);
1013                 break;
1014
1015         case SIOCADDMULTI:
1016                 QL_DPRINT4(ha, (ha->pci_dev,
1017                         "%s: %s (0x%lx)\n", __func__, "SIOCADDMULTI", cmd));
1018
1019                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1020                         if (qla_set_multi(ha, 1))
1021                                 ret = EINVAL;
1022                 }
1023                 break;
1024
1025         case SIOCDELMULTI:
1026                 QL_DPRINT4(ha, (ha->pci_dev,
1027                         "%s: %s (0x%lx)\n", __func__, "SIOCDELMULTI", cmd));
1028
1029                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1030                         if (qla_set_multi(ha, 0))
1031                                 ret = EINVAL;
1032                 }
1033                 break;
1034
1035         case SIOCSIFMEDIA:
1036         case SIOCGIFMEDIA:
1037                 QL_DPRINT4(ha, (ha->pci_dev,
1038                         "%s: SIOCSIFMEDIA/SIOCGIFMEDIA (0x%lx)\n",
1039                         __func__, cmd));
1040                 ret = ifmedia_ioctl(ifp, ifr, &ha->media, cmd);
1041                 break;
1042
1043         case SIOCSIFCAP:
1044         {
1045                 int mask = ifr->ifr_reqcap ^ ifp->if_capenable;
1046
1047                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFCAP (0x%lx)\n",
1048                         __func__, cmd));
1049
1050                 if (mask & IFCAP_HWCSUM)
1051                         ifp->if_capenable ^= IFCAP_HWCSUM;
1052                 if (mask & IFCAP_TSO4)
1053                         ifp->if_capenable ^= IFCAP_TSO4;
1054                 if (mask & IFCAP_VLAN_HWTAGGING)
1055                         ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
1056                 if (mask & IFCAP_VLAN_HWTSO)
1057                         ifp->if_capenable ^= IFCAP_VLAN_HWTSO;
1058
1059                 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
1060                         qla_init(ha);
1061
1062                 VLAN_CAPABILITIES(ifp);
1063                 break;
1064         }
1065
1066         default:
1067                 QL_DPRINT4(ha, (ha->pci_dev, "%s: default (0x%lx)\n",
1068                         __func__, cmd));
1069                 ret = ether_ioctl(ifp, cmd, data);
1070                 break;
1071         }
1072
1073         return (ret);
1074 }
1075
1076 static int
1077 qla_media_change(struct ifnet *ifp)
1078 {
1079         qla_host_t *ha;
1080         struct ifmedia *ifm;
1081         int ret = 0;
1082
1083         ha = (qla_host_t *)ifp->if_softc;
1084
1085         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1086
1087         ifm = &ha->media;
1088
1089         if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
1090                 ret = EINVAL;
1091
1092         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1093
1094         return (ret);
1095 }
1096
1097 static void
1098 qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr)
1099 {
1100         qla_host_t *ha;
1101
1102         ha = (qla_host_t *)ifp->if_softc;
1103
1104         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1105
1106         ifmr->ifm_status = IFM_AVALID;
1107         ifmr->ifm_active = IFM_ETHER;
1108
1109         ql_update_link_state(ha);
1110         if (ha->hw.link_up) {
1111                 ifmr->ifm_status |= IFM_ACTIVE;
1112                 ifmr->ifm_active |= (IFM_FDX | qla_get_optics(ha));
1113         }
1114
1115         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit (%s)\n", __func__,\
1116                 (ha->hw.link_up ? "link_up" : "link_down")));
1117
1118         return;
1119 }
1120
1121 static void
1122 qla_start(struct ifnet *ifp)
1123 {
1124         struct mbuf    *m_head;
1125         qla_host_t *ha = (qla_host_t *)ifp->if_softc;
1126
1127         QL_DPRINT8(ha, (ha->pci_dev, "%s: enter\n", __func__));
1128
1129         if (!mtx_trylock(&ha->tx_lock)) {
1130                 QL_DPRINT8(ha, (ha->pci_dev,
1131                         "%s: mtx_trylock(&ha->tx_lock) failed\n", __func__));
1132                 return;
1133         }
1134
1135         if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
1136                 IFF_DRV_RUNNING) {
1137                 QL_DPRINT8(ha,
1138                         (ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__));
1139                 QLA_TX_UNLOCK(ha);
1140                 return;
1141         }
1142
1143         if (!ha->hw.link_up || !ha->watchdog_ticks)
1144                 ql_update_link_state(ha);
1145
1146         if (!ha->hw.link_up) {
1147                 QL_DPRINT8(ha, (ha->pci_dev, "%s: link down\n", __func__));
1148                 QLA_TX_UNLOCK(ha);
1149                 return;
1150         }
1151
1152         while (ifp->if_snd.ifq_head != NULL) {
1153                 IF_DEQUEUE(&ifp->if_snd, m_head);
1154
1155                 if (m_head == NULL) {
1156                         QL_DPRINT8(ha, (ha->pci_dev, "%s: m_head == NULL\n",
1157                                 __func__));
1158                         break;
1159                 }
1160
1161                 if (qla_send(ha, &m_head)) {
1162                         if (m_head == NULL)
1163                                 break;
1164                         QL_DPRINT8(ha, (ha->pci_dev, "%s: PREPEND\n", __func__));
1165                         ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1166                         IF_PREPEND(&ifp->if_snd, m_head);
1167                         break;
1168                 }
1169                 /* Send a copy of the frame to the BPF listener */
1170                 ETHER_BPF_MTAP(ifp, m_head);
1171         }
1172         QLA_TX_UNLOCK(ha);
1173         QL_DPRINT8(ha, (ha->pci_dev, "%s: exit\n", __func__));
1174         return;
1175 }
1176
1177 static int
1178 qla_send(qla_host_t *ha, struct mbuf **m_headp)
1179 {
1180         bus_dma_segment_t       segs[QLA_MAX_SEGMENTS];
1181         bus_dmamap_t            map;
1182         int                     nsegs;
1183         int                     ret = -1;
1184         uint32_t                tx_idx;
1185         struct mbuf             *m_head = *m_headp;
1186         uint32_t                txr_idx = ha->txr_idx;
1187         uint32_t                iscsi_pdu = 0;
1188
1189         QL_DPRINT8(ha, (ha->pci_dev, "%s: enter\n", __func__));
1190
1191         /* check if flowid is set */
1192
1193         if (M_HASHTYPE_GET(m_head) != M_HASHTYPE_NONE) {
1194 #ifdef QL_ENABLE_ISCSI_TLV
1195                 if (qla_iscsi_pdu(ha, m_head) == 0) {
1196                         iscsi_pdu = 1;
1197                         txr_idx = m_head->m_pkthdr.flowid &
1198                                         ((ha->hw.num_tx_rings >> 1) - 1);
1199                 } else {
1200                         txr_idx = m_head->m_pkthdr.flowid &
1201                                         (ha->hw.num_tx_rings - 1);
1202                 }
1203 #else
1204                 txr_idx = m_head->m_pkthdr.flowid & (ha->hw.num_tx_rings - 1);
1205 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
1206         }
1207
1208
1209         tx_idx = ha->hw.tx_cntxt[txr_idx].txr_next;
1210         map = ha->tx_ring[txr_idx].tx_buf[tx_idx].map;
1211
1212         ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head, segs, &nsegs,
1213                         BUS_DMA_NOWAIT);
1214
1215         if (ret == EFBIG) {
1216
1217                 struct mbuf *m;
1218
1219                 QL_DPRINT8(ha, (ha->pci_dev, "%s: EFBIG [%d]\n", __func__,
1220                         m_head->m_pkthdr.len));
1221
1222                 m = m_defrag(m_head, M_NOWAIT);
1223                 if (m == NULL) {
1224                         ha->err_tx_defrag++;
1225                         m_freem(m_head);
1226                         *m_headp = NULL;
1227                         device_printf(ha->pci_dev,
1228                                 "%s: m_defrag() = NULL [%d]\n",
1229                                 __func__, ret);
1230                         return (ENOBUFS);
1231                 }
1232                 m_head = m;
1233                 *m_headp = m_head;
1234
1235                 if ((ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head,
1236                                         segs, &nsegs, BUS_DMA_NOWAIT))) {
1237
1238                         ha->err_tx_dmamap_load++;
1239
1240                         device_printf(ha->pci_dev,
1241                                 "%s: bus_dmamap_load_mbuf_sg failed0[%d, %d]\n",
1242                                 __func__, ret, m_head->m_pkthdr.len);
1243
1244                         if (ret != ENOMEM) {
1245                                 m_freem(m_head);
1246                                 *m_headp = NULL;
1247                         }
1248                         return (ret);
1249                 }
1250
1251         } else if (ret) {
1252
1253                 ha->err_tx_dmamap_load++;
1254
1255                 device_printf(ha->pci_dev,
1256                         "%s: bus_dmamap_load_mbuf_sg failed1[%d, %d]\n",
1257                         __func__, ret, m_head->m_pkthdr.len);
1258
1259                 if (ret != ENOMEM) {
1260                         m_freem(m_head);
1261                         *m_headp = NULL;
1262                 }
1263                 return (ret);
1264         }
1265
1266         QL_ASSERT(ha, (nsegs != 0), ("qla_send: empty packet"));
1267
1268         bus_dmamap_sync(ha->tx_tag, map, BUS_DMASYNC_PREWRITE);
1269
1270         if (!(ret = ql_hw_send(ha, segs, nsegs, tx_idx, m_head, txr_idx,
1271                                 iscsi_pdu))) {
1272                 ha->tx_ring[txr_idx].count++;
1273                 ha->tx_ring[txr_idx].tx_buf[tx_idx].m_head = m_head;
1274         } else {
1275                 if (ret == EINVAL) {
1276                         if (m_head)
1277                                 m_freem(m_head);
1278                         *m_headp = NULL;
1279                 }
1280         }
1281
1282         QL_DPRINT8(ha, (ha->pci_dev, "%s: exit\n", __func__));
1283         return (ret);
1284 }
1285
1286 static void
1287 qla_stop(qla_host_t *ha)
1288 {
1289         struct ifnet *ifp = ha->ifp;
1290         device_t        dev;
1291
1292         dev = ha->pci_dev;
1293
1294         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
1295
1296         ha->flags.qla_watchdog_pause = 1;
1297
1298         while (!ha->qla_watchdog_paused)
1299                 qla_mdelay(__func__, 1);
1300
1301         ha->flags.stop_rcv = 1;
1302         ql_hw_stop_rcv(ha);
1303
1304         ql_del_hw_if(ha);
1305
1306         qla_free_xmt_bufs(ha);
1307         qla_free_rcv_bufs(ha);
1308
1309         return;
1310 }
1311
1312 /*
1313  * Buffer Management Functions for Transmit and Receive Rings
1314  */
1315 static int
1316 qla_alloc_xmt_bufs(qla_host_t *ha)
1317 {
1318         int ret = 0;
1319         uint32_t i, j;
1320         qla_tx_buf_t *txb;
1321
1322         if (bus_dma_tag_create(NULL,    /* parent */
1323                 1, 0,    /* alignment, bounds */
1324                 BUS_SPACE_MAXADDR,       /* lowaddr */
1325                 BUS_SPACE_MAXADDR,       /* highaddr */
1326                 NULL, NULL,      /* filter, filterarg */
1327                 QLA_MAX_TSO_FRAME_SIZE,     /* maxsize */
1328                 QLA_MAX_SEGMENTS,        /* nsegments */
1329                 PAGE_SIZE,        /* maxsegsize */
1330                 BUS_DMA_ALLOCNOW,        /* flags */
1331                 NULL,    /* lockfunc */
1332                 NULL,    /* lockfuncarg */
1333                 &ha->tx_tag)) {
1334                 device_printf(ha->pci_dev, "%s: tx_tag alloc failed\n",
1335                         __func__);
1336                 return (ENOMEM);
1337         }
1338
1339         for (i = 0; i < ha->hw.num_tx_rings; i++) {
1340                 bzero((void *)ha->tx_ring[i].tx_buf,
1341                         (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1342         }
1343
1344         for (j = 0; j < ha->hw.num_tx_rings; j++) {
1345                 for (i = 0; i < NUM_TX_DESCRIPTORS; i++) {
1346
1347                         txb = &ha->tx_ring[j].tx_buf[i];
1348
1349                         if ((ret = bus_dmamap_create(ha->tx_tag,
1350                                         BUS_DMA_NOWAIT, &txb->map))) {
1351
1352                                 ha->err_tx_dmamap_create++;
1353                                 device_printf(ha->pci_dev,
1354                                         "%s: bus_dmamap_create failed[%d]\n",
1355                                         __func__, ret);
1356
1357                                 qla_free_xmt_bufs(ha);
1358
1359                                 return (ret);
1360                         }
1361                 }
1362         }
1363
1364         return 0;
1365 }
1366
1367 /*
1368  * Release mbuf after it sent on the wire
1369  */
1370 static void
1371 qla_clear_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb)
1372 {
1373         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1374
1375         if (txb->m_head && txb->map) {
1376
1377                 bus_dmamap_unload(ha->tx_tag, txb->map);
1378
1379                 m_freem(txb->m_head);
1380                 txb->m_head = NULL;
1381         }
1382
1383         if (txb->map)
1384                 bus_dmamap_destroy(ha->tx_tag, txb->map);
1385
1386         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1387 }
1388
1389 static void
1390 qla_free_xmt_bufs(qla_host_t *ha)
1391 {
1392         int             i, j;
1393
1394         for (j = 0; j < ha->hw.num_tx_rings; j++) {
1395                 for (i = 0; i < NUM_TX_DESCRIPTORS; i++)
1396                         qla_clear_tx_buf(ha, &ha->tx_ring[j].tx_buf[i]);
1397         }
1398
1399         if (ha->tx_tag != NULL) {
1400                 bus_dma_tag_destroy(ha->tx_tag);
1401                 ha->tx_tag = NULL;
1402         }
1403
1404         for (i = 0; i < ha->hw.num_tx_rings; i++) {
1405                 bzero((void *)ha->tx_ring[i].tx_buf,
1406                         (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1407         }
1408         return;
1409 }
1410
1411
1412 static int
1413 qla_alloc_rcv_std(qla_host_t *ha)
1414 {
1415         int             i, j, k, r, ret = 0;
1416         qla_rx_buf_t    *rxb;
1417         qla_rx_ring_t   *rx_ring;
1418
1419         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1420
1421                 rx_ring = &ha->rx_ring[r];
1422
1423                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1424
1425                         rxb = &rx_ring->rx_buf[i];
1426
1427                         ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT,
1428                                         &rxb->map);
1429
1430                         if (ret) {
1431                                 device_printf(ha->pci_dev,
1432                                         "%s: dmamap[%d, %d] failed\n",
1433                                         __func__, r, i);
1434
1435                                 for (k = 0; k < r; k++) {
1436                                         for (j = 0; j < NUM_RX_DESCRIPTORS;
1437                                                 j++) {
1438                                                 rxb = &ha->rx_ring[k].rx_buf[j];
1439                                                 bus_dmamap_destroy(ha->rx_tag,
1440                                                         rxb->map);
1441                                         }
1442                                 }
1443
1444                                 for (j = 0; j < i; j++) {
1445                                         bus_dmamap_destroy(ha->rx_tag,
1446                                                 rx_ring->rx_buf[j].map);
1447                                 }
1448                                 goto qla_alloc_rcv_std_err;
1449                         }
1450                 }
1451         }
1452
1453         qla_init_hw_rcv_descriptors(ha);
1454
1455
1456         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1457
1458                 rx_ring = &ha->rx_ring[r];
1459
1460                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1461                         rxb = &rx_ring->rx_buf[i];
1462                         rxb->handle = i;
1463                         if (!(ret = ql_get_mbuf(ha, rxb, NULL))) {
1464                                 /*
1465                                  * set the physical address in the
1466                                  * corresponding descriptor entry in the
1467                                  * receive ring/queue for the hba
1468                                  */
1469                                 qla_set_hw_rcv_desc(ha, r, i, rxb->handle,
1470                                         rxb->paddr,
1471                                         (rxb->m_head)->m_pkthdr.len);
1472                         } else {
1473                                 device_printf(ha->pci_dev,
1474                                         "%s: ql_get_mbuf [%d, %d] failed\n",
1475                                         __func__, r, i);
1476                                 bus_dmamap_destroy(ha->rx_tag, rxb->map);
1477                                 goto qla_alloc_rcv_std_err;
1478                         }
1479                 }
1480         }
1481         return 0;
1482
1483 qla_alloc_rcv_std_err:
1484         return (-1);
1485 }
1486
1487 static void
1488 qla_free_rcv_std(qla_host_t *ha)
1489 {
1490         int             i, r;
1491         qla_rx_buf_t    *rxb;
1492
1493         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1494                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1495                         rxb = &ha->rx_ring[r].rx_buf[i];
1496                         if (rxb->m_head != NULL) {
1497                                 bus_dmamap_unload(ha->rx_tag, rxb->map);
1498                                 bus_dmamap_destroy(ha->rx_tag, rxb->map);
1499                                 m_freem(rxb->m_head);
1500                                 rxb->m_head = NULL;
1501                         }
1502                 }
1503         }
1504         return;
1505 }
1506
1507 static int
1508 qla_alloc_rcv_bufs(qla_host_t *ha)
1509 {
1510         int             i, ret = 0;
1511
1512         if (bus_dma_tag_create(NULL,    /* parent */
1513                         1, 0,    /* alignment, bounds */
1514                         BUS_SPACE_MAXADDR,       /* lowaddr */
1515                         BUS_SPACE_MAXADDR,       /* highaddr */
1516                         NULL, NULL,      /* filter, filterarg */
1517                         MJUM9BYTES,     /* maxsize */
1518                         1,        /* nsegments */
1519                         MJUM9BYTES,        /* maxsegsize */
1520                         BUS_DMA_ALLOCNOW,        /* flags */
1521                         NULL,    /* lockfunc */
1522                         NULL,    /* lockfuncarg */
1523                         &ha->rx_tag)) {
1524
1525                 device_printf(ha->pci_dev, "%s: rx_tag alloc failed\n",
1526                         __func__);
1527
1528                 return (ENOMEM);
1529         }
1530
1531         bzero((void *)ha->rx_ring, (sizeof(qla_rx_ring_t) * MAX_RDS_RINGS));
1532
1533         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1534                 ha->hw.sds[i].sdsr_next = 0;
1535                 ha->hw.sds[i].rxb_free = NULL;
1536                 ha->hw.sds[i].rx_free = 0;
1537         }
1538
1539         ret = qla_alloc_rcv_std(ha);
1540
1541         return (ret);
1542 }
1543
1544 static void
1545 qla_free_rcv_bufs(qla_host_t *ha)
1546 {
1547         int             i;
1548
1549         qla_free_rcv_std(ha);
1550
1551         if (ha->rx_tag != NULL) {
1552                 bus_dma_tag_destroy(ha->rx_tag);
1553                 ha->rx_tag = NULL;
1554         }
1555
1556         bzero((void *)ha->rx_ring, (sizeof(qla_rx_ring_t) * MAX_RDS_RINGS));
1557
1558         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1559                 ha->hw.sds[i].sdsr_next = 0;
1560                 ha->hw.sds[i].rxb_free = NULL;
1561                 ha->hw.sds[i].rx_free = 0;
1562         }
1563
1564         return;
1565 }
1566
1567 int
1568 ql_get_mbuf(qla_host_t *ha, qla_rx_buf_t *rxb, struct mbuf *nmp)
1569 {
1570         register struct mbuf *mp = nmp;
1571         struct ifnet            *ifp;
1572         int                     ret = 0;
1573         uint32_t                offset;
1574         bus_dma_segment_t       segs[1];
1575         int                     nsegs, mbuf_size;
1576
1577         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1578
1579         ifp = ha->ifp;
1580
1581         if (ha->hw.enable_9kb)
1582                 mbuf_size = MJUM9BYTES;
1583         else
1584                 mbuf_size = MCLBYTES;
1585
1586         if (mp == NULL) {
1587
1588                 if (ha->hw.enable_9kb)
1589                         mp = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, mbuf_size);
1590                 else
1591                         mp = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1592
1593                 if (mp == NULL) {
1594                         ha->err_m_getcl++;
1595                         ret = ENOBUFS;
1596                         device_printf(ha->pci_dev,
1597                                         "%s: m_getcl failed\n", __func__);
1598                         goto exit_ql_get_mbuf;
1599                 }
1600                 mp->m_len = mp->m_pkthdr.len = mbuf_size;
1601         } else {
1602                 mp->m_len = mp->m_pkthdr.len = mbuf_size;
1603                 mp->m_data = mp->m_ext.ext_buf;
1604                 mp->m_next = NULL;
1605         }
1606
1607         offset = (uint32_t)((unsigned long long)mp->m_data & 0x7ULL);
1608         if (offset) {
1609                 offset = 8 - offset;
1610                 m_adj(mp, offset);
1611         }
1612
1613         /*
1614          * Using memory from the mbuf cluster pool, invoke the bus_dma
1615          * machinery to arrange the memory mapping.
1616          */
1617         ret = bus_dmamap_load_mbuf_sg(ha->rx_tag, rxb->map,
1618                         mp, segs, &nsegs, BUS_DMA_NOWAIT);
1619         rxb->paddr = segs[0].ds_addr;
1620
1621         if (ret || !rxb->paddr || (nsegs != 1)) {
1622                 m_free(mp);
1623                 rxb->m_head = NULL;
1624                 device_printf(ha->pci_dev,
1625                         "%s: bus_dmamap_load failed[%d, 0x%016llx, %d]\n",
1626                         __func__, ret, (long long unsigned int)rxb->paddr,
1627                         nsegs);
1628                 ret = -1;
1629                 goto exit_ql_get_mbuf;
1630         }
1631         rxb->m_head = mp;
1632         bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_PREREAD);
1633
1634 exit_ql_get_mbuf:
1635         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit ret = 0x%08x\n", __func__, ret));
1636         return (ret);
1637 }
1638
1639 static void
1640 qla_tx_done(void *context, int pending)
1641 {
1642         qla_host_t *ha = context;
1643         struct ifnet   *ifp;
1644
1645         ifp = ha->ifp;
1646
1647         if (!ifp)
1648                 return;
1649
1650         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1651                 QL_DPRINT8(ha, (ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__));
1652                 return;
1653         }
1654         ql_hw_tx_done(ha);
1655
1656         qla_start(ha->ifp);
1657 }
1658
1659 static void
1660 qla_get_peer(qla_host_t *ha)
1661 {
1662         device_t *peers;
1663         int count, i, slot;
1664         int my_slot = pci_get_slot(ha->pci_dev);
1665
1666         if (device_get_children(device_get_parent(ha->pci_dev), &peers, &count))
1667                 return;
1668
1669         for (i = 0; i < count; i++) {
1670                 slot = pci_get_slot(peers[i]);
1671
1672                 if ((slot >= 0) && (slot == my_slot) &&
1673                         (pci_get_device(peers[i]) ==
1674                                 pci_get_device(ha->pci_dev))) {
1675                         if (ha->pci_dev != peers[i])
1676                                 ha->peer_dev = peers[i];
1677                 }
1678         }
1679 }
1680
1681 static void
1682 qla_send_msg_to_peer(qla_host_t *ha, uint32_t msg_to_peer)
1683 {
1684         qla_host_t *ha_peer;
1685
1686         if (ha->peer_dev) {
1687                 if ((ha_peer = device_get_softc(ha->peer_dev)) != NULL) {
1688
1689                         ha_peer->msg_from_peer = msg_to_peer;
1690                 }
1691         }
1692 }
1693
1694 static void
1695 qla_error_recovery(void *context, int pending)
1696 {
1697         qla_host_t *ha = context;
1698         uint32_t msecs_100 = 100;
1699         struct ifnet *ifp = ha->ifp;
1700
1701         (void)QLA_LOCK(ha, __func__, 0);
1702
1703         ha->hw.imd_compl = 1;
1704         qla_mdelay(__func__, 300);
1705
1706         ha->flags.stop_rcv = 1;
1707
1708         ql_hw_stop_rcv(ha);
1709
1710         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
1711
1712         QLA_UNLOCK(ha, __func__);
1713
1714         if ((ha->pci_func & 0x1) == 0) {
1715
1716                 if (!ha->msg_from_peer) {
1717                         qla_send_msg_to_peer(ha, QL_PEER_MSG_RESET);
1718
1719                         while ((ha->msg_from_peer != QL_PEER_MSG_ACK) &&
1720                                 msecs_100--)
1721                                 qla_mdelay(__func__, 100);
1722                 }
1723
1724                 ha->msg_from_peer = 0;
1725
1726                 ql_minidump(ha);
1727
1728                 (void) ql_init_hw(ha);
1729                 qla_free_xmt_bufs(ha);
1730                 qla_free_rcv_bufs(ha);
1731
1732                 qla_send_msg_to_peer(ha, QL_PEER_MSG_ACK);
1733
1734         } else {
1735                 if (ha->msg_from_peer == QL_PEER_MSG_RESET) {
1736
1737                         ha->msg_from_peer = 0;
1738
1739                         qla_send_msg_to_peer(ha, QL_PEER_MSG_ACK);
1740                 } else {
1741                         qla_send_msg_to_peer(ha, QL_PEER_MSG_RESET);
1742                 }
1743
1744                 while ((ha->msg_from_peer != QL_PEER_MSG_ACK)  && msecs_100--)
1745                         qla_mdelay(__func__, 100);
1746                 ha->msg_from_peer = 0;
1747
1748                 (void) ql_init_hw(ha);
1749                 qla_free_xmt_bufs(ha);
1750                 qla_free_rcv_bufs(ha);
1751         }
1752         (void)QLA_LOCK(ha, __func__, 0);
1753
1754         if (qla_alloc_xmt_bufs(ha) != 0) {
1755                 QLA_UNLOCK(ha, __func__);
1756                 return;
1757         }
1758         qla_confirm_9kb_enable(ha);
1759
1760         if (qla_alloc_rcv_bufs(ha) != 0) {
1761                 QLA_UNLOCK(ha, __func__);
1762                 return;
1763         }
1764
1765         ha->flags.stop_rcv = 0;
1766         if (ql_init_hw_if(ha) == 0) {
1767                 ifp = ha->ifp;
1768                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
1769                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1770                 ha->flags.qla_watchdog_pause = 0;
1771         }
1772
1773         QLA_UNLOCK(ha, __func__);
1774 }
1775
1776 static void
1777 qla_async_event(void *context, int pending)
1778 {
1779         qla_host_t *ha = context;
1780
1781         (void)QLA_LOCK(ha, __func__, 0);
1782         qla_hw_async_event(ha);
1783         QLA_UNLOCK(ha, __func__);
1784 }
1785