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         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 293
 294         if ((ha = device_get_softc(dev)) == NULL) {
 295                 device_printf(dev, "cannot get softc\n");
 296                 return (ENOMEM);
 297         }
 298
 299         memset(ha, 0, sizeof (qla_host_t));
 300
 301         if (pci_get_device(dev) != PCI_PRODUCT_QLOGIC_ISP8030) {
 302                 device_printf(dev, "device is not ISP8030\n");
 303                 return (ENXIO);
 304         }
 305
 306         ha->pci_func = pci_get_function(dev);
 307
 308         ha->pci_dev = dev;
 309
 310         pci_enable_busmaster(dev);
 311
 312         ha->reg_rid = PCIR_BAR(0);
 313         ha->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ha->reg_rid,
 314                                 RF_ACTIVE);
 315
 316         if (ha->pci_reg == NULL) {
 317                 device_printf(dev, "unable to map any ports\n");
 318                 goto qla_pci_attach_err;
 319         }
 320
 321         rsrc_len = (uint32_t) bus_get_resource_count(dev, SYS_RES_MEMORY,
 322                                         ha->reg_rid);
 323
 324         mtx_init(&ha->hw_lock, "qla83xx_hw_lock", MTX_NETWORK_LOCK, MTX_DEF);
 325
 326         mtx_init(&ha->tx_lock, "qla83xx_tx_lock", MTX_NETWORK_LOCK, MTX_DEF);
 327
 328         qla_add_sysctls(ha);
 329         ql_hw_add_sysctls(ha);
 330
 331         ha->flags.lock_init = 1;
 332
 333         ha->reg_rid1 = PCIR_BAR(2);
 334         ha->pci_reg1 = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
 335                         &ha->reg_rid1, RF_ACTIVE);
 336
 337         ha->msix_count = pci_msix_count(dev);
 338
 339         if (ha->msix_count < (ha->hw.num_sds_rings + 1)) {
 340                 device_printf(dev, "%s: msix_count[%d] not enough\n", __func__,
 341                         ha->msix_count);
 342                 goto qla_pci_attach_err;
 343         }
 344
 345         QL_DPRINT2(ha, (dev, "%s: ha %p pci_func 0x%x rsrc_count 0x%08x"
 346                 " msix_count 0x%x pci_reg %p\n", __func__, ha,
 347                 ha->pci_func, rsrc_len, ha->msix_count, ha->pci_reg));
 348
 349         /* initialize hardware */
 350         if (ql_init_hw(ha)) {
 351                 device_printf(dev, "%s: ql_init_hw failed\n", __func__);
 352                 goto qla_pci_attach_err;
 353         }
 354
 355         device_printf(dev, "%s: firmware[%d.%d.%d.%d]\n", __func__,
 356                 ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 357                 ha->fw_ver_build);
 358         snprintf(ha->fw_ver_str, sizeof(ha->fw_ver_str), "%d.%d.%d.%d",
 359                         ha->fw_ver_major, ha->fw_ver_minor, ha->fw_ver_sub,
 360                         ha->fw_ver_build);
 361
 362         if (qla_get_nic_partition(ha, NULL, &num_rcvq)) {
 363                 device_printf(dev, "%s: qla_get_nic_partition failed\n",
 364                         __func__);
 365                 goto qla_pci_attach_err;
 366         }
 367         device_printf(dev, "%s: ha %p pci_func 0x%x rsrc_count 0x%08x"
 368                 " msix_count 0x%x pci_reg %p num_rcvq = %d\n", __func__, ha,
 369                 ha->pci_func, rsrc_len, ha->msix_count, ha->pci_reg, num_rcvq);
 370
 371
 372 #ifdef QL_ENABLE_ISCSI_TLV
 373         if ((ha->msix_count  < 64) || (num_rcvq != 32)) {
 374                 ha->hw.num_sds_rings = 15;
 375                 ha->hw.num_tx_rings = 32;
 376         }
 377 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
 378         ha->hw.num_rds_rings = ha->hw.num_sds_rings;
 379
 380         ha->msix_count = ha->hw.num_sds_rings + 1;
 381
 382         if (pci_alloc_msix(dev, &ha->msix_count)) {
 383                 device_printf(dev, "%s: pci_alloc_msi[%d] failed\n", __func__,
 384                         ha->msix_count);
 385                 ha->msix_count = 0;
 386                 goto qla_pci_attach_err;
 387         }
 388
 389         ha->mbx_irq_rid = 1;
 390         ha->mbx_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 391                                 &ha->mbx_irq_rid,
 392                                 (RF_ACTIVE | RF_SHAREABLE));
 393         if (ha->mbx_irq == NULL) {
 394                 device_printf(dev, "could not allocate mbx interrupt\n");
 395                 goto qla_pci_attach_err;
 396         }
 397         if (bus_setup_intr(dev, ha->mbx_irq, (INTR_TYPE_NET | INTR_MPSAFE),
 398                 NULL, ql_mbx_isr, ha, &ha->mbx_handle)) {
 399                 device_printf(dev, "could not setup mbx interrupt\n");
 400                 goto qla_pci_attach_err;
 401         }
 402
 403
 404         for (i = 0; i < ha->hw.num_sds_rings; i++) {
 405                 ha->irq_vec[i].sds_idx = i;
 406                 ha->irq_vec[i].ha = ha;
 407                 ha->irq_vec[i].irq_rid = 2 + i;
 408
 409                 ha->irq_vec[i].irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 410                                 &ha->irq_vec[i].irq_rid,
 411                                 (RF_ACTIVE | RF_SHAREABLE));
 412
 413                 if (ha->irq_vec[i].irq == NULL) {
 414                         device_printf(dev, "could not allocate interrupt\n");
 415                         goto qla_pci_attach_err;
 416                 }
 417                 if (bus_setup_intr(dev, ha->irq_vec[i].irq,
 418                         (INTR_TYPE_NET | INTR_MPSAFE),
 419                         NULL, ql_isr, &ha->irq_vec[i],
 420                         &ha->irq_vec[i].handle)) {
 421                         device_printf(dev, "could not setup interrupt\n");
 422                         goto qla_pci_attach_err;
 423                 }
 424         }
 425
 426         printf("%s: mp__ncpus %d sds %d rds %d msi-x %d\n", __func__, mp_ncpus,
 427                 ha->hw.num_sds_rings, ha->hw.num_rds_rings, ha->msix_count);
 428
 429         ql_read_mac_addr(ha);
 430
 431         /* allocate parent dma tag */
 432         if (qla_alloc_parent_dma_tag(ha)) {
 433                 device_printf(dev, "%s: qla_alloc_parent_dma_tag failed\n",
 434                         __func__);
 435                 goto qla_pci_attach_err;
 436         }
 437
 438         /* alloc all dma buffers */
 439         if (ql_alloc_dma(ha)) {
 440                 device_printf(dev, "%s: ql_alloc_dma failed\n", __func__);
 441                 goto qla_pci_attach_err;
 442         }
 443         qla_get_peer(ha);
 444
 445         /* create the o.s ethernet interface */
 446         qla_init_ifnet(dev, ha);
 447
 448         ha->flags.qla_watchdog_active = 1;
 449         ha->flags.qla_watchdog_pause = 1;
 450
 451
 452         TASK_INIT(&ha->tx_task, 0, qla_tx_done, ha);
 453         ha->tx_tq = taskqueue_create_fast("qla_txq", M_NOWAIT,
 454                         taskqueue_thread_enqueue, &ha->tx_tq);
 455         taskqueue_start_threads(&ha->tx_tq, 1, PI_NET, "%s txq",
 456                 device_get_nameunit(ha->pci_dev));
 457
 458         callout_init(&ha->tx_callout, TRUE);
 459         ha->flags.qla_callout_init = 1;
 460
 461         /* create ioctl device interface */
 462         if (ql_make_cdev(ha)) {
 463                 device_printf(dev, "%s: ql_make_cdev failed\n", __func__);
 464                 goto qla_pci_attach_err;
 465         }
 466
 467         callout_reset(&ha->tx_callout, QLA_WATCHDOG_CALLOUT_TICKS,
 468                 qla_watchdog, ha);
 469
 470         TASK_INIT(&ha->err_task, 0, qla_error_recovery, ha);
 471         ha->err_tq = taskqueue_create_fast("qla_errq", M_NOWAIT,
 472                         taskqueue_thread_enqueue, &ha->err_tq);
 473         taskqueue_start_threads(&ha->err_tq, 1, PI_NET, "%s errq",
 474                 device_get_nameunit(ha->pci_dev));
 475
 476         TASK_INIT(&ha->async_event_task, 0, qla_async_event, ha);
 477         ha->async_event_tq = taskqueue_create_fast("qla_asyncq", M_NOWAIT,
 478                         taskqueue_thread_enqueue, &ha->async_event_tq);
 479         taskqueue_start_threads(&ha->async_event_tq, 1, PI_NET, "%s asyncq",
 480                 device_get_nameunit(ha->pci_dev));
 481
 482         QL_DPRINT2(ha, (dev, "%s: exit 0\n", __func__));
 483         return (0);
 484
 485 qla_pci_attach_err:
 486
 487         qla_release(ha);
 488
 489         QL_DPRINT2(ha, (dev, "%s: exit ENXIO\n", __func__));
 490         return (ENXIO);
 491 }
 492
 493 /*
 494  * Name:        qla_pci_detach
 495  * Function:    Unhooks the device from the operating system
 496  */
 497 static int
 498 qla_pci_detach(device_t dev)
 499 {
 500         qla_host_t *ha = NULL;
 501         struct ifnet *ifp;
 502
 503         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 504
 505         if ((ha = device_get_softc(dev)) == NULL) {
 506                 device_printf(dev, "cannot get softc\n");
 507                 return (ENOMEM);
 508         }
 509
 510         ifp = ha->ifp;
 511
 512         (void)QLA_LOCK(ha, __func__, 0);
 513         qla_stop(ha);
 514         QLA_UNLOCK(ha, __func__);
 515
 516         qla_release(ha);
 517
 518         QL_DPRINT2(ha, (dev, "%s: exit\n", __func__));
 519
 520         return (0);
 521 }
 522
 523 /*
 524  * SYSCTL Related Callbacks
 525  */
 526 static int
 527 qla_sysctl_get_stats(SYSCTL_HANDLER_ARGS)
 528 {
 529         int err, ret = 0;
 530         qla_host_t *ha;
 531
 532         err = sysctl_handle_int(oidp, &ret, 0, req);
 533
 534         if (err || !req->newptr)
 535                 return (err);
 536
 537         if (ret == 1) {
 538                 ha = (qla_host_t *)arg1;
 539                 ql_get_stats(ha);
 540         }
 541         return (err);
 542 }
 543 static int
 544 qla_sysctl_get_link_status(SYSCTL_HANDLER_ARGS)
 545 {
 546         int err, ret = 0;
 547         qla_host_t *ha;
 548
 549         err = sysctl_handle_int(oidp, &ret, 0, req);
 550
 551         if (err || !req->newptr)
 552                 return (err);
 553
 554         if (ret == 1) {
 555                 ha = (qla_host_t *)arg1;
 556                 ql_hw_link_status(ha);
 557         }
 558         return (err);
 559 }
 560
 561 /*
 562  * Name:        qla_release
 563  * Function:    Releases the resources allocated for the device
 564  */
 565 static void
 566 qla_release(qla_host_t *ha)
 567 {
 568         device_t dev;
 569         int i;
 570
 571         dev = ha->pci_dev;
 572
 573         if (ha->async_event_tq) {
 574                 taskqueue_drain(ha->async_event_tq, &ha->async_event_task);
 575                 taskqueue_free(ha->async_event_tq);
 576         }
 577
 578         if (ha->err_tq) {
 579                 taskqueue_drain(ha->err_tq, &ha->err_task);
 580                 taskqueue_free(ha->err_tq);
 581         }
 582
 583         if (ha->tx_tq) {
 584                 taskqueue_drain(ha->tx_tq, &ha->tx_task);
 585                 taskqueue_free(ha->tx_tq);
 586         }
 587
 588         ql_del_cdev(ha);
 589
 590         if (ha->flags.qla_watchdog_active) {
 591                 ha->flags.qla_watchdog_exit = 1;
 592
 593                 while (ha->qla_watchdog_exited == 0)
 594                         qla_mdelay(__func__, 1);
 595         }
 596
 597         if (ha->flags.qla_callout_init)
 598                 callout_stop(&ha->tx_callout);
 599
 600         if (ha->ifp != NULL)
 601                 ether_ifdetach(ha->ifp);
 602
 603         ql_free_dma(ha);
 604         qla_free_parent_dma_tag(ha);
 605
 606         if (ha->mbx_handle)
 607                 (void)bus_teardown_intr(dev, ha->mbx_irq, ha->mbx_handle);
 608
 609         if (ha->mbx_irq)
 610                 (void) bus_release_resource(dev, SYS_RES_IRQ, ha->mbx_irq_rid,
 611                                 ha->mbx_irq);
 612
 613         for (i = 0; i < ha->hw.num_sds_rings; i++) {
 614
 615                 if (ha->irq_vec[i].handle) {
 616                         (void)bus_teardown_intr(dev, ha->irq_vec[i].irq,
 617                                         ha->irq_vec[i].handle);
 618                 }
 619
 620                 if (ha->irq_vec[i].irq) {
 621                         (void)bus_release_resource(dev, SYS_RES_IRQ,
 622                                 ha->irq_vec[i].irq_rid,
 623                                 ha->irq_vec[i].irq);
 624                 }
 625         }
 626
 627         if (ha->msix_count)
 628                 pci_release_msi(dev);
 629
 630         if (ha->flags.lock_init) {
 631                 mtx_destroy(&ha->tx_lock);
 632                 mtx_destroy(&ha->hw_lock);
 633         }
 634
 635         if (ha->pci_reg)
 636                 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid,
 637                                 ha->pci_reg);
 638
 639         if (ha->pci_reg1)
 640                 (void) bus_release_resource(dev, SYS_RES_MEMORY, ha->reg_rid1,
 641                                 ha->pci_reg1);
 642 }
 643
 644 /*
 645  * DMA Related Functions
 646  */
 647
 648 static void
 649 qla_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 650 {
 651         *((bus_addr_t *)arg) = 0;
 652
 653         if (error) {
 654                 printf("%s: bus_dmamap_load failed (%d)\n", __func__, error);
 655                 return;
 656         }
 657
 658         *((bus_addr_t *)arg) = segs[0].ds_addr;
 659
 660         return;
 661 }
 662
 663 int
 664 ql_alloc_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 665 {
 666         int             ret = 0;
 667         device_t        dev;
 668         bus_addr_t      b_addr;
 669
 670         dev = ha->pci_dev;
 671
 672         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 673
 674         ret = bus_dma_tag_create(
 675                         ha->parent_tag,/* parent */
 676                         dma_buf->alignment,
 677                         ((bus_size_t)(1ULL << 32)),/* boundary */
 678                         BUS_SPACE_MAXADDR,      /* lowaddr */
 679                         BUS_SPACE_MAXADDR,      /* highaddr */
 680                         NULL, NULL,             /* filter, filterarg */
 681                         dma_buf->size,          /* maxsize */
 682                         1,                      /* nsegments */
 683                         dma_buf->size,          /* maxsegsize */
 684                         0,                      /* flags */
 685                         NULL, NULL,             /* lockfunc, lockarg */
 686                         &dma_buf->dma_tag);
 687
 688         if (ret) {
 689                 device_printf(dev, "%s: could not create dma tag\n", __func__);
 690                 goto ql_alloc_dmabuf_exit;
 691         }
 692         ret = bus_dmamem_alloc(dma_buf->dma_tag,
 693                         (void **)&dma_buf->dma_b,
 694                         (BUS_DMA_ZERO | BUS_DMA_COHERENT | BUS_DMA_NOWAIT),
 695                         &dma_buf->dma_map);
 696         if (ret) {
 697                 bus_dma_tag_destroy(dma_buf->dma_tag);
 698                 device_printf(dev, "%s: bus_dmamem_alloc failed\n", __func__);
 699                 goto ql_alloc_dmabuf_exit;
 700         }
 701
 702         ret = bus_dmamap_load(dma_buf->dma_tag,
 703                         dma_buf->dma_map,
 704                         dma_buf->dma_b,
 705                         dma_buf->size,
 706                         qla_dmamap_callback,
 707                         &b_addr, BUS_DMA_NOWAIT);
 708
 709         if (ret || !b_addr) {
 710                 bus_dma_tag_destroy(dma_buf->dma_tag);
 711                 bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b,
 712                         dma_buf->dma_map);
 713                 ret = -1;
 714                 goto ql_alloc_dmabuf_exit;
 715         }
 716
 717         dma_buf->dma_addr = b_addr;
 718
 719 ql_alloc_dmabuf_exit:
 720         QL_DPRINT2(ha, (dev, "%s: exit ret 0x%08x tag %p map %p b %p sz 0x%x\n",
 721                 __func__, ret, (void *)dma_buf->dma_tag,
 722                 (void *)dma_buf->dma_map, (void *)dma_buf->dma_b,
 723                 dma_buf->size));
 724
 725         return ret;
 726 }
 727
 728 void
 729 ql_free_dmabuf(qla_host_t *ha, qla_dma_t *dma_buf)
 730 {
 731         bus_dmamem_free(dma_buf->dma_tag, dma_buf->dma_b, dma_buf->dma_map);
 732         bus_dma_tag_destroy(dma_buf->dma_tag);
 733 }
 734
 735 static int
 736 qla_alloc_parent_dma_tag(qla_host_t *ha)
 737 {
 738         int             ret;
 739         device_t        dev;
 740
 741         dev = ha->pci_dev;
 742
 743         /*
 744          * Allocate parent DMA Tag
 745          */
 746         ret = bus_dma_tag_create(
 747                         bus_get_dma_tag(dev),   /* parent */
 748                         1,((bus_size_t)(1ULL << 32)),/* alignment, boundary */
 749                         BUS_SPACE_MAXADDR,      /* lowaddr */
 750                         BUS_SPACE_MAXADDR,      /* highaddr */
 751                         NULL, NULL,             /* filter, filterarg */
 752                         BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
 753                         0,                      /* nsegments */
 754                         BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
 755                         0,                      /* flags */
 756                         NULL, NULL,             /* lockfunc, lockarg */
 757                         &ha->parent_tag);
 758
 759         if (ret) {
 760                 device_printf(dev, "%s: could not create parent dma tag\n",
 761                         __func__);
 762                 return (-1);
 763         }
 764
 765         ha->flags.parent_tag = 1;
 766
 767         return (0);
 768 }
 769
 770 static void
 771 qla_free_parent_dma_tag(qla_host_t *ha)
 772 {
 773         if (ha->flags.parent_tag) {
 774                 bus_dma_tag_destroy(ha->parent_tag);
 775                 ha->flags.parent_tag = 0;
 776         }
 777 }
 778
 779 /*
 780  * Name: qla_init_ifnet
 781  * Function: Creates the Network Device Interface and Registers it with the O.S
 782  */
 783
 784 static void
 785 qla_init_ifnet(device_t dev, qla_host_t *ha)
 786 {
 787         struct ifnet *ifp;
 788
 789         QL_DPRINT2(ha, (dev, "%s: enter\n", __func__));
 790
 791         ifp = ha->ifp = if_alloc(IFT_ETHER);
 792
 793         if (ifp == NULL)
 794                 panic("%s: cannot if_alloc()\n", device_get_nameunit(dev));
 795
 796         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 797
 798 #if __FreeBSD_version >= 1000000
 799         if_initbaudrate(ifp, IF_Gbps(10));
 800         ifp->if_capabilities = IFCAP_LINKSTATE;
 801 #else
 802         ifp->if_mtu = ETHERMTU;
 803         ifp->if_baudrate = (1 * 1000 * 1000 *1000);
 804
 805 #endif /* #if __FreeBSD_version >= 1000000 */
 806
 807         ifp->if_init = qla_init;
 808         ifp->if_softc = ha;
 809         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 810         ifp->if_ioctl = qla_ioctl;
 811         ifp->if_start = qla_start;
 812
 813         IFQ_SET_MAXLEN(&ifp->if_snd, qla_get_ifq_snd_maxlen(ha));
 814         ifp->if_snd.ifq_drv_maxlen = qla_get_ifq_snd_maxlen(ha);
 815         IFQ_SET_READY(&ifp->if_snd);
 816
 817         ha->max_frame_size = ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 818
 819         ether_ifattach(ifp, qla_get_mac_addr(ha));
 820
 821         ifp->if_capabilities = IFCAP_HWCSUM |
 822                                 IFCAP_TSO4 |
 823                                 IFCAP_JUMBO_MTU;
 824
 825         ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
 826         ifp->if_capabilities |= IFCAP_VLAN_HWTSO;
 827
 828         ifp->if_capenable = ifp->if_capabilities;
 829
 830         ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
 831
 832         ifmedia_init(&ha->media, IFM_IMASK, qla_media_change, qla_media_status);
 833
 834         ifmedia_add(&ha->media, (IFM_ETHER | qla_get_optics(ha) | IFM_FDX), 0,
 835                 NULL);
 836         ifmedia_add(&ha->media, (IFM_ETHER | IFM_AUTO), 0, NULL);
 837
 838         ifmedia_set(&ha->media, (IFM_ETHER | IFM_AUTO));
 839
 840         QL_DPRINT2(ha, (dev, "%s: exit\n", __func__));
 841
 842         return;
 843 }
 844
 845 static void
 846 qla_init_locked(qla_host_t *ha)
 847 {
 848         struct ifnet *ifp = ha->ifp;
 849
 850         qla_stop(ha);
 851
 852         if (qla_alloc_xmt_bufs(ha) != 0)
 853                 return;
 854
 855         qla_confirm_9kb_enable(ha);
 856
 857         if (qla_alloc_rcv_bufs(ha) != 0)
 858                 return;
 859
 860         bcopy(IF_LLADDR(ha->ifp), ha->hw.mac_addr, ETHER_ADDR_LEN);
 861
 862         ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_TSO;
 863
 864         ha->flags.stop_rcv = 0;
 865         if (ql_init_hw_if(ha) == 0) {
 866                 ifp = ha->ifp;
 867                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
 868                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 869                 ha->flags.qla_watchdog_pause = 0;
 870                 ha->hw_vlan_tx_frames = 0;
 871                 ha->tx_tso_frames = 0;
 872         }
 873
 874         return;
 875 }
 876
 877 static void
 878 qla_init(void *arg)
 879 {
 880         qla_host_t *ha;
 881
 882         ha = (qla_host_t *)arg;
 883
 884         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
 885
 886         (void)QLA_LOCK(ha, __func__, 0);
 887         qla_init_locked(ha);
 888         QLA_UNLOCK(ha, __func__);
 889
 890         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
 891 }
 892
 893 static int
 894 qla_set_multi(qla_host_t *ha, uint32_t add_multi)
 895 {
 896         uint8_t mta[Q8_MAX_NUM_MULTICAST_ADDRS * Q8_MAC_ADDR_LEN];
 897         struct ifmultiaddr *ifma;
 898         int mcnt = 0;
 899         struct ifnet *ifp = ha->ifp;
 900         int ret = 0;
 901
 902         if_maddr_rlock(ifp);
 903
 904         TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 905
 906                 if (ifma->ifma_addr->sa_family != AF_LINK)
 907                         continue;
 908
 909                 if (mcnt == Q8_MAX_NUM_MULTICAST_ADDRS)
 910                         break;
 911
 912                 bcopy(LLADDR((struct sockaddr_dl *) ifma->ifma_addr),
 913                         &mta[mcnt * Q8_MAC_ADDR_LEN], Q8_MAC_ADDR_LEN);
 914
 915                 mcnt++;
 916         }
 917
 918         if_maddr_runlock(ifp);
 919
 920         if (QLA_LOCK(ha, __func__, 1) == 0) {
 921                 ret = ql_hw_set_multi(ha, mta, mcnt, add_multi);
 922                 QLA_UNLOCK(ha, __func__);
 923         }
 924
 925         return (ret);
 926 }
 927
 928 static int
 929 qla_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 930 {
 931         int ret = 0;
 932         struct ifreq *ifr = (struct ifreq *)data;
 933         struct ifaddr *ifa = (struct ifaddr *)data;
 934         qla_host_t *ha;
 935
 936         ha = (qla_host_t *)ifp->if_softc;
 937
 938         switch (cmd) {
 939         case SIOCSIFADDR:
 940                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFADDR (0x%lx)\n",
 941                         __func__, cmd));
 942
 943                 if (ifa->ifa_addr->sa_family == AF_INET) {
 944                         ifp->if_flags |= IFF_UP;
 945                         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 946                                 (void)QLA_LOCK(ha, __func__, 0);
 947                                 qla_init_locked(ha);
 948                                 QLA_UNLOCK(ha, __func__);
 949                         }
 950                         QL_DPRINT4(ha, (ha->pci_dev,
 951                                 "%s: SIOCSIFADDR (0x%lx) ipv4 [0x%08x]\n",
 952                                 __func__, cmd,
 953                                 ntohl(IA_SIN(ifa)->sin_addr.s_addr)));
 954
 955                         arp_ifinit(ifp, ifa);
 956                 } else {
 957                         ether_ioctl(ifp, cmd, data);
 958                 }
 959                 break;
 960
 961         case SIOCSIFMTU:
 962                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFMTU (0x%lx)\n",
 963                         __func__, cmd));
 964
 965                 if (ifr->ifr_mtu > QLA_MAX_MTU) {
 966                         ret = EINVAL;
 967                 } else {
 968                         (void) QLA_LOCK(ha, __func__, 0);
 969                         ifp->if_mtu = ifr->ifr_mtu;
 970                         ha->max_frame_size =
 971                                 ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
 972                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 973                                 ret = ql_set_max_mtu(ha, ha->max_frame_size,
 974                                         ha->hw.rcv_cntxt_id);
 975                         }
 976
 977                         if (ifp->if_mtu > ETHERMTU)
 978                                 ha->std_replenish = QL_JUMBO_REPLENISH_THRES;
 979                         else
 980                                 ha->std_replenish = QL_STD_REPLENISH_THRES;
 981
 982
 983                         QLA_UNLOCK(ha, __func__);
 984
 985                         if (ret)
 986                                 ret = EINVAL;
 987                 }
 988
 989                 break;
 990
 991         case SIOCSIFFLAGS:
 992                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFFLAGS (0x%lx)\n",
 993                         __func__, cmd));
 994
 995                 (void)QLA_LOCK(ha, __func__, 0);
 996
 997                 if (ifp->if_flags & IFF_UP) {
 998                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 999                                 if ((ifp->if_flags ^ ha->if_flags) &
1000                                         IFF_PROMISC) {
1001                                         ret = ql_set_promisc(ha);
1002                                 } else if ((ifp->if_flags ^ ha->if_flags) &
1003                                         IFF_ALLMULTI) {
1004                                         ret = ql_set_allmulti(ha);
1005                                 }
1006                         } else {
1007                                 qla_init_locked(ha);
1008                                 ha->max_frame_size = ifp->if_mtu +
1009                                         ETHER_HDR_LEN + ETHER_CRC_LEN;
1010                                 ret = ql_set_max_mtu(ha, ha->max_frame_size,
1011                                         ha->hw.rcv_cntxt_id);
1012                         }
1013                 } else {
1014                         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1015                                 qla_stop(ha);
1016                         ha->if_flags = ifp->if_flags;
1017                 }
1018
1019                 QLA_UNLOCK(ha, __func__);
1020                 break;
1021
1022         case SIOCADDMULTI:
1023                 QL_DPRINT4(ha, (ha->pci_dev,
1024                         "%s: %s (0x%lx)\n", __func__, "SIOCADDMULTI", cmd));
1025
1026                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1027                         if (qla_set_multi(ha, 1))
1028                                 ret = EINVAL;
1029                 }
1030                 break;
1031
1032         case SIOCDELMULTI:
1033                 QL_DPRINT4(ha, (ha->pci_dev,
1034                         "%s: %s (0x%lx)\n", __func__, "SIOCDELMULTI", cmd));
1035
1036                 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1037                         if (qla_set_multi(ha, 0))
1038                                 ret = EINVAL;
1039                 }
1040                 break;
1041
1042         case SIOCSIFMEDIA:
1043         case SIOCGIFMEDIA:
1044                 QL_DPRINT4(ha, (ha->pci_dev,
1045                         "%s: SIOCSIFMEDIA/SIOCGIFMEDIA (0x%lx)\n",
1046                         __func__, cmd));
1047                 ret = ifmedia_ioctl(ifp, ifr, &ha->media, cmd);
1048                 break;
1049
1050         case SIOCSIFCAP:
1051         {
1052                 int mask = ifr->ifr_reqcap ^ ifp->if_capenable;
1053
1054                 QL_DPRINT4(ha, (ha->pci_dev, "%s: SIOCSIFCAP (0x%lx)\n",
1055                         __func__, cmd));
1056
1057                 if (mask & IFCAP_HWCSUM)
1058                         ifp->if_capenable ^= IFCAP_HWCSUM;
1059                 if (mask & IFCAP_TSO4)
1060                         ifp->if_capenable ^= IFCAP_TSO4;
1061                 if (mask & IFCAP_VLAN_HWTAGGING)
1062                         ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
1063                 if (mask & IFCAP_VLAN_HWTSO)
1064                         ifp->if_capenable ^= IFCAP_VLAN_HWTSO;
1065
1066                 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
1067                         qla_init(ha);
1068
1069                 VLAN_CAPABILITIES(ifp);
1070                 break;
1071         }
1072
1073         default:
1074                 QL_DPRINT4(ha, (ha->pci_dev, "%s: default (0x%lx)\n",
1075                         __func__, cmd));
1076                 ret = ether_ioctl(ifp, cmd, data);
1077                 break;
1078         }
1079
1080         return (ret);
1081 }
1082
1083 static int
1084 qla_media_change(struct ifnet *ifp)
1085 {
1086         qla_host_t *ha;
1087         struct ifmedia *ifm;
1088         int ret = 0;
1089
1090         ha = (qla_host_t *)ifp->if_softc;
1091
1092         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1093
1094         ifm = &ha->media;
1095
1096         if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
1097                 ret = EINVAL;
1098
1099         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1100
1101         return (ret);
1102 }
1103
1104 static void
1105 qla_media_status(struct ifnet *ifp, struct ifmediareq *ifmr)
1106 {
1107         qla_host_t *ha;
1108
1109         ha = (qla_host_t *)ifp->if_softc;
1110
1111         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1112
1113         ifmr->ifm_status = IFM_AVALID;
1114         ifmr->ifm_active = IFM_ETHER;
1115
1116         ql_update_link_state(ha);
1117         if (ha->hw.link_up) {
1118                 ifmr->ifm_status |= IFM_ACTIVE;
1119                 ifmr->ifm_active |= (IFM_FDX | qla_get_optics(ha));
1120         }
1121
1122         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit (%s)\n", __func__,\
1123                 (ha->hw.link_up ? "link_up" : "link_down")));
1124
1125         return;
1126 }
1127
1128 static void
1129 qla_start(struct ifnet *ifp)
1130 {
1131         struct mbuf    *m_head;
1132         qla_host_t *ha = (qla_host_t *)ifp->if_softc;
1133
1134         QL_DPRINT8(ha, (ha->pci_dev, "%s: enter\n", __func__));
1135
1136         if (!mtx_trylock(&ha->tx_lock)) {
1137                 QL_DPRINT8(ha, (ha->pci_dev,
1138                         "%s: mtx_trylock(&ha->tx_lock) failed\n", __func__));
1139                 return;
1140         }
1141
1142         if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
1143                 IFF_DRV_RUNNING) {
1144                 QL_DPRINT8(ha,
1145                         (ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__));
1146                 QLA_TX_UNLOCK(ha);
1147                 return;
1148         }
1149
1150         if (!ha->hw.link_up || !ha->watchdog_ticks)
1151                 ql_update_link_state(ha);
1152
1153         if (!ha->hw.link_up) {
1154                 QL_DPRINT8(ha, (ha->pci_dev, "%s: link down\n", __func__));
1155                 QLA_TX_UNLOCK(ha);
1156                 return;
1157         }
1158
1159         while (ifp->if_snd.ifq_head != NULL) {
1160                 IF_DEQUEUE(&ifp->if_snd, m_head);
1161
1162                 if (m_head == NULL) {
1163                         QL_DPRINT8(ha, (ha->pci_dev, "%s: m_head == NULL\n",
1164                                 __func__));
1165                         break;
1166                 }
1167
1168                 if (qla_send(ha, &m_head)) {
1169                         if (m_head == NULL)
1170                                 break;
1171                         QL_DPRINT8(ha, (ha->pci_dev, "%s: PREPEND\n", __func__));
1172                         ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1173                         IF_PREPEND(&ifp->if_snd, m_head);
1174                         break;
1175                 }
1176                 /* Send a copy of the frame to the BPF listener */
1177                 ETHER_BPF_MTAP(ifp, m_head);
1178         }
1179         QLA_TX_UNLOCK(ha);
1180         QL_DPRINT8(ha, (ha->pci_dev, "%s: exit\n", __func__));
1181         return;
1182 }
1183
1184 static int
1185 qla_send(qla_host_t *ha, struct mbuf **m_headp)
1186 {
1187         bus_dma_segment_t       segs[QLA_MAX_SEGMENTS];
1188         bus_dmamap_t            map;
1189         int                     nsegs;
1190         int                     ret = -1;
1191         uint32_t                tx_idx;
1192         struct mbuf             *m_head = *m_headp;
1193         uint32_t                txr_idx = ha->txr_idx;
1194         uint32_t                iscsi_pdu = 0;
1195
1196         QL_DPRINT8(ha, (ha->pci_dev, "%s: enter\n", __func__));
1197
1198         /* check if flowid is set */
1199
1200         if (M_HASHTYPE_GET(m_head) != M_HASHTYPE_NONE) {
1201 #ifdef QL_ENABLE_ISCSI_TLV
1202                 if (qla_iscsi_pdu(ha, m_head) == 0) {
1203                         iscsi_pdu = 1;
1204                         txr_idx = m_head->m_pkthdr.flowid &
1205                                         ((ha->hw.num_tx_rings >> 1) - 1);
1206                 } else {
1207                         txr_idx = m_head->m_pkthdr.flowid &
1208                                         (ha->hw.num_tx_rings - 1);
1209                 }
1210 #else
1211                 txr_idx = m_head->m_pkthdr.flowid & (ha->hw.num_tx_rings - 1);
1212 #endif /* #ifdef QL_ENABLE_ISCSI_TLV */
1213         }
1214
1215
1216         tx_idx = ha->hw.tx_cntxt[txr_idx].txr_next;
1217         map = ha->tx_ring[txr_idx].tx_buf[tx_idx].map;
1218
1219         ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head, segs, &nsegs,
1220                         BUS_DMA_NOWAIT);
1221
1222         if (ret == EFBIG) {
1223
1224                 struct mbuf *m;
1225
1226                 QL_DPRINT8(ha, (ha->pci_dev, "%s: EFBIG [%d]\n", __func__,
1227                         m_head->m_pkthdr.len));
1228
1229                 m = m_defrag(m_head, M_NOWAIT);
1230                 if (m == NULL) {
1231                         ha->err_tx_defrag++;
1232                         m_freem(m_head);
1233                         *m_headp = NULL;
1234                         device_printf(ha->pci_dev,
1235                                 "%s: m_defrag() = NULL [%d]\n",
1236                                 __func__, ret);
1237                         return (ENOBUFS);
1238                 }
1239                 m_head = m;
1240                 *m_headp = m_head;
1241
1242                 if ((ret = bus_dmamap_load_mbuf_sg(ha->tx_tag, map, m_head,
1243                                         segs, &nsegs, BUS_DMA_NOWAIT))) {
1244
1245                         ha->err_tx_dmamap_load++;
1246
1247                         device_printf(ha->pci_dev,
1248                                 "%s: bus_dmamap_load_mbuf_sg failed0[%d, %d]\n",
1249                                 __func__, ret, m_head->m_pkthdr.len);
1250
1251                         if (ret != ENOMEM) {
1252                                 m_freem(m_head);
1253                                 *m_headp = NULL;
1254                         }
1255                         return (ret);
1256                 }
1257
1258         } else if (ret) {
1259
1260                 ha->err_tx_dmamap_load++;
1261
1262                 device_printf(ha->pci_dev,
1263                         "%s: bus_dmamap_load_mbuf_sg failed1[%d, %d]\n",
1264                         __func__, ret, m_head->m_pkthdr.len);
1265
1266                 if (ret != ENOMEM) {
1267                         m_freem(m_head);
1268                         *m_headp = NULL;
1269                 }
1270                 return (ret);
1271         }
1272
1273         QL_ASSERT(ha, (nsegs != 0), ("qla_send: empty packet"));
1274
1275         bus_dmamap_sync(ha->tx_tag, map, BUS_DMASYNC_PREWRITE);
1276
1277         if (!(ret = ql_hw_send(ha, segs, nsegs, tx_idx, m_head, txr_idx,
1278                                 iscsi_pdu))) {
1279                 ha->tx_ring[txr_idx].count++;
1280                 ha->tx_ring[txr_idx].tx_buf[tx_idx].m_head = m_head;
1281         } else {
1282                 if (ret == EINVAL) {
1283                         if (m_head)
1284                                 m_freem(m_head);
1285                         *m_headp = NULL;
1286                 }
1287         }
1288
1289         QL_DPRINT8(ha, (ha->pci_dev, "%s: exit\n", __func__));
1290         return (ret);
1291 }
1292
1293 static void
1294 qla_stop(qla_host_t *ha)
1295 {
1296         struct ifnet *ifp = ha->ifp;
1297         device_t        dev;
1298
1299         dev = ha->pci_dev;
1300
1301         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
1302
1303         ha->flags.qla_watchdog_pause = 1;
1304
1305         while (!ha->qla_watchdog_paused)
1306                 qla_mdelay(__func__, 1);
1307
1308         ha->flags.stop_rcv = 1;
1309         ql_hw_stop_rcv(ha);
1310
1311         ql_del_hw_if(ha);
1312
1313         qla_free_xmt_bufs(ha);
1314         qla_free_rcv_bufs(ha);
1315
1316         return;
1317 }
1318
1319 /*
1320  * Buffer Management Functions for Transmit and Receive Rings
1321  */
1322 static int
1323 qla_alloc_xmt_bufs(qla_host_t *ha)
1324 {
1325         int ret = 0;
1326         uint32_t i, j;
1327         qla_tx_buf_t *txb;
1328
1329         if (bus_dma_tag_create(NULL,    /* parent */
1330                 1, 0,    /* alignment, bounds */
1331                 BUS_SPACE_MAXADDR,       /* lowaddr */
1332                 BUS_SPACE_MAXADDR,       /* highaddr */
1333                 NULL, NULL,      /* filter, filterarg */
1334                 QLA_MAX_TSO_FRAME_SIZE,     /* maxsize */
1335                 QLA_MAX_SEGMENTS,        /* nsegments */
1336                 PAGE_SIZE,        /* maxsegsize */
1337                 BUS_DMA_ALLOCNOW,        /* flags */
1338                 NULL,    /* lockfunc */
1339                 NULL,    /* lockfuncarg */
1340                 &ha->tx_tag)) {
1341                 device_printf(ha->pci_dev, "%s: tx_tag alloc failed\n",
1342                         __func__);
1343                 return (ENOMEM);
1344         }
1345
1346         for (i = 0; i < ha->hw.num_tx_rings; i++) {
1347                 bzero((void *)ha->tx_ring[i].tx_buf,
1348                         (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1349         }
1350
1351         for (j = 0; j < ha->hw.num_tx_rings; j++) {
1352                 for (i = 0; i < NUM_TX_DESCRIPTORS; i++) {
1353
1354                         txb = &ha->tx_ring[j].tx_buf[i];
1355
1356                         if ((ret = bus_dmamap_create(ha->tx_tag,
1357                                         BUS_DMA_NOWAIT, &txb->map))) {
1358
1359                                 ha->err_tx_dmamap_create++;
1360                                 device_printf(ha->pci_dev,
1361                                         "%s: bus_dmamap_create failed[%d]\n",
1362                                         __func__, ret);
1363
1364                                 qla_free_xmt_bufs(ha);
1365
1366                                 return (ret);
1367                         }
1368                 }
1369         }
1370
1371         return 0;
1372 }
1373
1374 /*
1375  * Release mbuf after it sent on the wire
1376  */
1377 static void
1378 qla_clear_tx_buf(qla_host_t *ha, qla_tx_buf_t *txb)
1379 {
1380         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1381
1382         if (txb->m_head && txb->map) {
1383
1384                 bus_dmamap_unload(ha->tx_tag, txb->map);
1385
1386                 m_freem(txb->m_head);
1387                 txb->m_head = NULL;
1388         }
1389
1390         if (txb->map)
1391                 bus_dmamap_destroy(ha->tx_tag, txb->map);
1392
1393         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit\n", __func__));
1394 }
1395
1396 static void
1397 qla_free_xmt_bufs(qla_host_t *ha)
1398 {
1399         int             i, j;
1400
1401         for (j = 0; j < ha->hw.num_tx_rings; j++) {
1402                 for (i = 0; i < NUM_TX_DESCRIPTORS; i++)
1403                         qla_clear_tx_buf(ha, &ha->tx_ring[j].tx_buf[i]);
1404         }
1405
1406         if (ha->tx_tag != NULL) {
1407                 bus_dma_tag_destroy(ha->tx_tag);
1408                 ha->tx_tag = NULL;
1409         }
1410
1411         for (i = 0; i < ha->hw.num_tx_rings; i++) {
1412                 bzero((void *)ha->tx_ring[i].tx_buf,
1413                         (sizeof(qla_tx_buf_t) * NUM_TX_DESCRIPTORS));
1414         }
1415         return;
1416 }
1417
1418
1419 static int
1420 qla_alloc_rcv_std(qla_host_t *ha)
1421 {
1422         int             i, j, k, r, ret = 0;
1423         qla_rx_buf_t    *rxb;
1424         qla_rx_ring_t   *rx_ring;
1425
1426         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1427
1428                 rx_ring = &ha->rx_ring[r];
1429
1430                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1431
1432                         rxb = &rx_ring->rx_buf[i];
1433
1434                         ret = bus_dmamap_create(ha->rx_tag, BUS_DMA_NOWAIT,
1435                                         &rxb->map);
1436
1437                         if (ret) {
1438                                 device_printf(ha->pci_dev,
1439                                         "%s: dmamap[%d, %d] failed\n",
1440                                         __func__, r, i);
1441
1442                                 for (k = 0; k < r; k++) {
1443                                         for (j = 0; j < NUM_RX_DESCRIPTORS;
1444                                                 j++) {
1445                                                 rxb = &ha->rx_ring[k].rx_buf[j];
1446                                                 bus_dmamap_destroy(ha->rx_tag,
1447                                                         rxb->map);
1448                                         }
1449                                 }
1450
1451                                 for (j = 0; j < i; j++) {
1452                                         bus_dmamap_destroy(ha->rx_tag,
1453                                                 rx_ring->rx_buf[j].map);
1454                                 }
1455                                 goto qla_alloc_rcv_std_err;
1456                         }
1457                 }
1458         }
1459
1460         qla_init_hw_rcv_descriptors(ha);
1461
1462
1463         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1464
1465                 rx_ring = &ha->rx_ring[r];
1466
1467                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1468                         rxb = &rx_ring->rx_buf[i];
1469                         rxb->handle = i;
1470                         if (!(ret = ql_get_mbuf(ha, rxb, NULL))) {
1471                                 /*
1472                                  * set the physical address in the
1473                                  * corresponding descriptor entry in the
1474                                  * receive ring/queue for the hba
1475                                  */
1476                                 qla_set_hw_rcv_desc(ha, r, i, rxb->handle,
1477                                         rxb->paddr,
1478                                         (rxb->m_head)->m_pkthdr.len);
1479                         } else {
1480                                 device_printf(ha->pci_dev,
1481                                         "%s: ql_get_mbuf [%d, %d] failed\n",
1482                                         __func__, r, i);
1483                                 bus_dmamap_destroy(ha->rx_tag, rxb->map);
1484                                 goto qla_alloc_rcv_std_err;
1485                         }
1486                 }
1487         }
1488         return 0;
1489
1490 qla_alloc_rcv_std_err:
1491         return (-1);
1492 }
1493
1494 static void
1495 qla_free_rcv_std(qla_host_t *ha)
1496 {
1497         int             i, r;
1498         qla_rx_buf_t    *rxb;
1499
1500         for (r = 0; r < ha->hw.num_rds_rings; r++) {
1501                 for (i = 0; i < NUM_RX_DESCRIPTORS; i++) {
1502                         rxb = &ha->rx_ring[r].rx_buf[i];
1503                         if (rxb->m_head != NULL) {
1504                                 bus_dmamap_unload(ha->rx_tag, rxb->map);
1505                                 bus_dmamap_destroy(ha->rx_tag, rxb->map);
1506                                 m_freem(rxb->m_head);
1507                                 rxb->m_head = NULL;
1508                         }
1509                 }
1510         }
1511         return;
1512 }
1513
1514 static int
1515 qla_alloc_rcv_bufs(qla_host_t *ha)
1516 {
1517         int             i, ret = 0;
1518
1519         if (bus_dma_tag_create(NULL,    /* parent */
1520                         1, 0,    /* alignment, bounds */
1521                         BUS_SPACE_MAXADDR,       /* lowaddr */
1522                         BUS_SPACE_MAXADDR,       /* highaddr */
1523                         NULL, NULL,      /* filter, filterarg */
1524                         MJUM9BYTES,     /* maxsize */
1525                         1,        /* nsegments */
1526                         MJUM9BYTES,        /* maxsegsize */
1527                         BUS_DMA_ALLOCNOW,        /* flags */
1528                         NULL,    /* lockfunc */
1529                         NULL,    /* lockfuncarg */
1530                         &ha->rx_tag)) {
1531
1532                 device_printf(ha->pci_dev, "%s: rx_tag alloc failed\n",
1533                         __func__);
1534
1535                 return (ENOMEM);
1536         }
1537
1538         bzero((void *)ha->rx_ring, (sizeof(qla_rx_ring_t) * MAX_RDS_RINGS));
1539
1540         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1541                 ha->hw.sds[i].sdsr_next = 0;
1542                 ha->hw.sds[i].rxb_free = NULL;
1543                 ha->hw.sds[i].rx_free = 0;
1544         }
1545
1546         ret = qla_alloc_rcv_std(ha);
1547
1548         return (ret);
1549 }
1550
1551 static void
1552 qla_free_rcv_bufs(qla_host_t *ha)
1553 {
1554         int             i;
1555
1556         qla_free_rcv_std(ha);
1557
1558         if (ha->rx_tag != NULL) {
1559                 bus_dma_tag_destroy(ha->rx_tag);
1560                 ha->rx_tag = NULL;
1561         }
1562
1563         bzero((void *)ha->rx_ring, (sizeof(qla_rx_ring_t) * MAX_RDS_RINGS));
1564
1565         for (i = 0; i < ha->hw.num_sds_rings; i++) {
1566                 ha->hw.sds[i].sdsr_next = 0;
1567                 ha->hw.sds[i].rxb_free = NULL;
1568                 ha->hw.sds[i].rx_free = 0;
1569         }
1570
1571         return;
1572 }
1573
1574 int
1575 ql_get_mbuf(qla_host_t *ha, qla_rx_buf_t *rxb, struct mbuf *nmp)
1576 {
1577         register struct mbuf *mp = nmp;
1578         struct ifnet            *ifp;
1579         int                     ret = 0;
1580         uint32_t                offset;
1581         bus_dma_segment_t       segs[1];
1582         int                     nsegs, mbuf_size;
1583
1584         QL_DPRINT2(ha, (ha->pci_dev, "%s: enter\n", __func__));
1585
1586         ifp = ha->ifp;
1587
1588         if (ha->hw.enable_9kb)
1589                 mbuf_size = MJUM9BYTES;
1590         else
1591                 mbuf_size = MCLBYTES;
1592
1593         if (mp == NULL) {
1594
1595                 if (ha->hw.enable_9kb)
1596                         mp = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, mbuf_size);
1597                 else
1598                         mp = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1599
1600                 if (mp == NULL) {
1601                         ha->err_m_getcl++;
1602                         ret = ENOBUFS;
1603                         device_printf(ha->pci_dev,
1604                                         "%s: m_getcl failed\n", __func__);
1605                         goto exit_ql_get_mbuf;
1606                 }
1607                 mp->m_len = mp->m_pkthdr.len = mbuf_size;
1608         } else {
1609                 mp->m_len = mp->m_pkthdr.len = mbuf_size;
1610                 mp->m_data = mp->m_ext.ext_buf;
1611                 mp->m_next = NULL;
1612         }
1613
1614         offset = (uint32_t)((unsigned long long)mp->m_data & 0x7ULL);
1615         if (offset) {
1616                 offset = 8 - offset;
1617                 m_adj(mp, offset);
1618         }
1619
1620         /*
1621          * Using memory from the mbuf cluster pool, invoke the bus_dma
1622          * machinery to arrange the memory mapping.
1623          */
1624         ret = bus_dmamap_load_mbuf_sg(ha->rx_tag, rxb->map,
1625                         mp, segs, &nsegs, BUS_DMA_NOWAIT);
1626         rxb->paddr = segs[0].ds_addr;
1627
1628         if (ret || !rxb->paddr || (nsegs != 1)) {
1629                 m_free(mp);
1630                 rxb->m_head = NULL;
1631                 device_printf(ha->pci_dev,
1632                         "%s: bus_dmamap_load failed[%d, 0x%016llx, %d]\n",
1633                         __func__, ret, (long long unsigned int)rxb->paddr,
1634                         nsegs);
1635                 ret = -1;
1636                 goto exit_ql_get_mbuf;
1637         }
1638         rxb->m_head = mp;
1639         bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_PREREAD);
1640
1641 exit_ql_get_mbuf:
1642         QL_DPRINT2(ha, (ha->pci_dev, "%s: exit ret = 0x%08x\n", __func__, ret));
1643         return (ret);
1644 }
1645
1646 static void
1647 qla_tx_done(void *context, int pending)
1648 {
1649         qla_host_t *ha = context;
1650         struct ifnet   *ifp;
1651
1652         ifp = ha->ifp;
1653
1654         if (!ifp)
1655                 return;
1656
1657         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1658                 QL_DPRINT8(ha, (ha->pci_dev, "%s: !IFF_DRV_RUNNING\n", __func__));
1659                 return;
1660         }
1661         ql_hw_tx_done(ha);
1662
1663         qla_start(ha->ifp);
1664 }
1665
1666 static void
1667 qla_get_peer(qla_host_t *ha)
1668 {
1669         device_t *peers;
1670         int count, i, slot;
1671         int my_slot = pci_get_slot(ha->pci_dev);
1672
1673         if (device_get_children(device_get_parent(ha->pci_dev), &peers, &count))
1674                 return;
1675
1676         for (i = 0; i < count; i++) {
1677                 slot = pci_get_slot(peers[i]);
1678
1679                 if ((slot >= 0) && (slot == my_slot) &&
1680                         (pci_get_device(peers[i]) ==
1681                                 pci_get_device(ha->pci_dev))) {
1682                         if (ha->pci_dev != peers[i])
1683                                 ha->peer_dev = peers[i];
1684                 }
1685         }
1686 }
1687
1688 static void
1689 qla_send_msg_to_peer(qla_host_t *ha, uint32_t msg_to_peer)
1690 {
1691         qla_host_t *ha_peer;
1692
1693         if (ha->peer_dev) {
1694                 if ((ha_peer = device_get_softc(ha->peer_dev)) != NULL) {
1695
1696                         ha_peer->msg_from_peer = msg_to_peer;
1697                 }
1698         }
1699 }
1700
1701 static void
1702 qla_error_recovery(void *context, int pending)
1703 {
1704         qla_host_t *ha = context;
1705         uint32_t msecs_100 = 100;
1706         struct ifnet *ifp = ha->ifp;
1707
1708         (void)QLA_LOCK(ha, __func__, 0);
1709
1710         ha->hw.imd_compl = 1;
1711         qla_mdelay(__func__, 300);
1712
1713         ha->flags.stop_rcv = 1;
1714
1715         ql_hw_stop_rcv(ha);
1716
1717         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
1718
1719         QLA_UNLOCK(ha, __func__);
1720
1721         if ((ha->pci_func & 0x1) == 0) {
1722
1723                 if (!ha->msg_from_peer) {
1724                         qla_send_msg_to_peer(ha, QL_PEER_MSG_RESET);
1725
1726                         while ((ha->msg_from_peer != QL_PEER_MSG_ACK) &&
1727                                 msecs_100--)
1728                                 qla_mdelay(__func__, 100);
1729                 }
1730
1731                 ha->msg_from_peer = 0;
1732
1733                 ql_minidump(ha);
1734
1735                 (void) ql_init_hw(ha);
1736                 qla_free_xmt_bufs(ha);
1737                 qla_free_rcv_bufs(ha);
1738
1739                 qla_send_msg_to_peer(ha, QL_PEER_MSG_ACK);
1740
1741         } else {
1742                 if (ha->msg_from_peer == QL_PEER_MSG_RESET) {
1743
1744                         ha->msg_from_peer = 0;
1745
1746                         qla_send_msg_to_peer(ha, QL_PEER_MSG_ACK);
1747                 } else {
1748                         qla_send_msg_to_peer(ha, QL_PEER_MSG_RESET);
1749                 }
1750
1751                 while ((ha->msg_from_peer != QL_PEER_MSG_ACK)  && msecs_100--)
1752                         qla_mdelay(__func__, 100);
1753                 ha->msg_from_peer = 0;
1754
1755                 (void) ql_init_hw(ha);
1756                 qla_free_xmt_bufs(ha);
1757                 qla_free_rcv_bufs(ha);
1758         }
1759         (void)QLA_LOCK(ha, __func__, 0);
1760
1761         if (qla_alloc_xmt_bufs(ha) != 0) {
1762                 QLA_UNLOCK(ha, __func__);
1763                 return;
1764         }
1765         qla_confirm_9kb_enable(ha);
1766
1767         if (qla_alloc_rcv_bufs(ha) != 0) {
1768                 QLA_UNLOCK(ha, __func__);
1769                 return;
1770         }
1771
1772         ha->flags.stop_rcv = 0;
1773         if (ql_init_hw_if(ha) == 0) {
1774                 ifp = ha->ifp;
1775                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
1776                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1777                 ha->flags.qla_watchdog_pause = 0;
1778         }
1779
1780         QLA_UNLOCK(ha, __func__);
1781 }
1782
1783 static void
1784 qla_async_event(void *context, int pending)
1785 {
1786         qla_host_t *ha = context;
1787
1788         (void)QLA_LOCK(ha, __func__, 0);
1789         qla_hw_async_event(ha);
1790         QLA_UNLOCK(ha, __func__);
1791 }
1792