hw/net/spapr_llan.c

   1 /*
   2  * QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator
   3  *
   4  * PAPR Inter-VM Logical Lan, aka ibmveth
   5  *
   6  * Copyright (c) 2010,2011 David Gibson, IBM Corporation.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a copy
   9  * of this software and associated documentation files (the "Software"), to deal
  10  * in the Software without restriction, including without limitation the rights
  11  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12  * copies of the Software, and to permit persons to whom the Software is
  13  * furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included in
  16  * all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  21  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  24  * THE SOFTWARE.
  25  *
  26  */
  27 #include "hw/hw.h"
  28 #include "net/net.h"
  29 #include "hw/qdev.h"
  30 #include "hw/ppc/spapr.h"
  31 #include "hw/ppc/spapr_vio.h"
  32 #include "sysemu/sysemu.h"
  33
  34 #include <libfdt.h>
  35
  36 #define ETH_ALEN        6
  37 #define MAX_PACKET_SIZE 65536
  38
  39 /*#define DEBUG*/
  40
  41 #ifdef DEBUG
  42 #define DPRINTF(fmt...) do { fprintf(stderr, fmt); } while (0)
  43 #else
  44 #define DPRINTF(fmt...)
  45 #endif
  46
  47 /*
  48  * Virtual LAN device
  49  */
  50
  51 typedef uint64_t vlan_bd_t;
  52
  53 #define VLAN_BD_VALID        0x8000000000000000ULL
  54 #define VLAN_BD_TOGGLE       0x4000000000000000ULL
  55 #define VLAN_BD_NO_CSUM      0x0200000000000000ULL
  56 #define VLAN_BD_CSUM_GOOD    0x0100000000000000ULL
  57 #define VLAN_BD_LEN_MASK     0x00ffffff00000000ULL
  58 #define VLAN_BD_LEN(bd)      (((bd) & VLAN_BD_LEN_MASK) >> 32)
  59 #define VLAN_BD_ADDR_MASK    0x00000000ffffffffULL
  60 #define VLAN_BD_ADDR(bd)     ((bd) & VLAN_BD_ADDR_MASK)
  61
  62 #define VLAN_VALID_BD(addr, len) (VLAN_BD_VALID | \
  63                                   (((len) << 32) & VLAN_BD_LEN_MASK) |  \
  64                                   (addr & VLAN_BD_ADDR_MASK))
  65
  66 #define VLAN_RXQC_TOGGLE     0x80
  67 #define VLAN_RXQC_VALID      0x40
  68 #define VLAN_RXQC_NO_CSUM    0x02
  69 #define VLAN_RXQC_CSUM_GOOD  0x01
  70
  71 #define VLAN_RQ_ALIGNMENT    16
  72 #define VLAN_RXQ_BD_OFF      0
  73 #define VLAN_FILTER_BD_OFF   8
  74 #define VLAN_RX_BDS_OFF      16
  75 /*
  76  * The final 8 bytes of the buffer list is a counter of frames dropped
  77  * because there was not a buffer in the buffer list capable of holding
  78  * the frame. We must avoid it, or the operating system will report garbage
  79  * for this statistic.
  80  */
  81 #define VLAN_RX_BDS_LEN      (SPAPR_TCE_PAGE_SIZE - VLAN_RX_BDS_OFF - 8)
  82 #define VLAN_MAX_BUFS        (VLAN_RX_BDS_LEN / 8)
  83
  84 #define TYPE_VIO_SPAPR_VLAN_DEVICE "spapr-vlan"
  85 #define VIO_SPAPR_VLAN_DEVICE(obj) \
  86      OBJECT_CHECK(VIOsPAPRVLANDevice, (obj), TYPE_VIO_SPAPR_VLAN_DEVICE)
  87
  88 typedef struct VIOsPAPRVLANDevice {
  89     VIOsPAPRDevice sdev;
  90     NICConf nicconf;
  91     NICState *nic;
  92     bool isopen;
  93     target_ulong buf_list;
  94     uint32_t add_buf_ptr, use_buf_ptr, rx_bufs;
  95     target_ulong rxq_ptr;
  96 } VIOsPAPRVLANDevice;
  97
  98 static int spapr_vlan_can_receive(NetClientState *nc)
  99 {
 100     VIOsPAPRVLANDevice *dev = qemu_get_nic_opaque(nc);
 101
 102     return (dev->isopen && dev->rx_bufs > 0);
 103 }
 104
 105 static ssize_t spapr_vlan_receive(NetClientState *nc, const uint8_t *buf,
 106                                   size_t size)
 107 {
 108     VIOsPAPRVLANDevice *dev = qemu_get_nic_opaque(nc);
 109     VIOsPAPRDevice *sdev = VIO_SPAPR_DEVICE(dev);
 110     vlan_bd_t rxq_bd = vio_ldq(sdev, dev->buf_list + VLAN_RXQ_BD_OFF);
 111     vlan_bd_t bd;
 112     int buf_ptr = dev->use_buf_ptr;
 113     uint64_t handle;
 114     uint8_t control;
 115
 116     DPRINTF("spapr_vlan_receive() [%s] rx_bufs=%d\n", sdev->qdev.id,
 117             dev->rx_bufs);
 118
 119     if (!dev->isopen) {
 120         return -1;
 121     }
 122
 123     if (!dev->rx_bufs) {
 124         return -1;
 125     }
 126
 127     do {
 128         buf_ptr += 8;
 129         if (buf_ptr >= (VLAN_RX_BDS_LEN + VLAN_RX_BDS_OFF)) {
 130             buf_ptr = VLAN_RX_BDS_OFF;
 131         }
 132
 133         bd = vio_ldq(sdev, dev->buf_list + buf_ptr);
 134         DPRINTF("use_buf_ptr=%d bd=0x%016llx\n",
 135                 buf_ptr, (unsigned long long)bd);
 136     } while ((!(bd & VLAN_BD_VALID) || (VLAN_BD_LEN(bd) < (size + 8)))
 137              && (buf_ptr != dev->use_buf_ptr));
 138
 139     if (!(bd & VLAN_BD_VALID) || (VLAN_BD_LEN(bd) < (size + 8))) {
 140         /* Failed to find a suitable buffer */
 141         return -1;
 142     }
 143
 144     /* Remove the buffer from the pool */
 145     dev->rx_bufs--;
 146     dev->use_buf_ptr = buf_ptr;
 147     vio_stq(sdev, dev->buf_list + dev->use_buf_ptr, 0);
 148
 149     DPRINTF("Found buffer: ptr=%d num=%d\n", dev->use_buf_ptr, dev->rx_bufs);
 150
 151     /* Transfer the packet data */
 152     if (spapr_vio_dma_write(sdev, VLAN_BD_ADDR(bd) + 8, buf, size) < 0) {
 153         return -1;
 154     }
 155
 156     DPRINTF("spapr_vlan_receive: DMA write completed\n");
 157
 158     /* Update the receive queue */
 159     control = VLAN_RXQC_TOGGLE | VLAN_RXQC_VALID;
 160     if (rxq_bd & VLAN_BD_TOGGLE) {
 161         control ^= VLAN_RXQC_TOGGLE;
 162     }
 163
 164     handle = vio_ldq(sdev, VLAN_BD_ADDR(bd));
 165     vio_stq(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 8, handle);
 166     vio_stl(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 4, size);
 167     vio_sth(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 2, 8);
 168     vio_stb(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr, control);
 169
 170     DPRINTF("wrote rxq entry (ptr=0x%llx): 0x%016llx 0x%016llx\n",
 171             (unsigned long long)dev->rxq_ptr,
 172             (unsigned long long)vio_ldq(sdev, VLAN_BD_ADDR(rxq_bd) +
 173                                         dev->rxq_ptr),
 174             (unsigned long long)vio_ldq(sdev, VLAN_BD_ADDR(rxq_bd) +
 175                                         dev->rxq_ptr + 8));
 176
 177     dev->rxq_ptr += 16;
 178     if (dev->rxq_ptr >= VLAN_BD_LEN(rxq_bd)) {
 179         dev->rxq_ptr = 0;
 180         vio_stq(sdev, dev->buf_list + VLAN_RXQ_BD_OFF, rxq_bd ^ VLAN_BD_TOGGLE);
 181     }
 182
 183     if (sdev->signal_state & 1) {
 184         qemu_irq_pulse(spapr_vio_qirq(sdev));
 185     }
 186
 187     return size;
 188 }
 189
 190 static void spapr_vlan_cleanup(NetClientState *nc)
 191 {
 192     VIOsPAPRVLANDevice *dev = qemu_get_nic_opaque(nc);
 193
 194     dev->nic = NULL;
 195 }
 196
 197 static NetClientInfo net_spapr_vlan_info = {
 198     .type = NET_CLIENT_OPTIONS_KIND_NIC,
 199     .size = sizeof(NICState),
 200     .can_receive = spapr_vlan_can_receive,
 201     .receive = spapr_vlan_receive,
 202     .cleanup = spapr_vlan_cleanup,
 203 };
 204
 205 static void spapr_vlan_reset(VIOsPAPRDevice *sdev)
 206 {
 207     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 208
 209     dev->buf_list = 0;
 210     dev->rx_bufs = 0;
 211     dev->isopen = 0;
 212 }
 213
 214 static int spapr_vlan_init(VIOsPAPRDevice *sdev)
 215 {
 216     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 217
 218     qemu_macaddr_default_if_unset(&dev->nicconf.macaddr);
 219
 220     dev->nic = qemu_new_nic(&net_spapr_vlan_info, &dev->nicconf,
 221                             object_get_typename(OBJECT(sdev)), sdev->qdev.id, dev);
 222     qemu_format_nic_info_str(qemu_get_queue(dev->nic), dev->nicconf.macaddr.a);
 223
 224     add_boot_device_path(dev->nicconf.bootindex, DEVICE(dev), "");
 225
 226     return 0;
 227 }
 228
 229 void spapr_vlan_create(VIOsPAPRBus *bus, NICInfo *nd)
 230 {
 231     DeviceState *dev;
 232
 233     dev = qdev_create(&bus->bus, "spapr-vlan");
 234
 235     qdev_set_nic_properties(dev, nd);
 236
 237     qdev_init_nofail(dev);
 238 }
 239
 240 static int spapr_vlan_devnode(VIOsPAPRDevice *dev, void *fdt, int node_off)
 241 {
 242     VIOsPAPRVLANDevice *vdev = VIO_SPAPR_VLAN_DEVICE(dev);
 243     uint8_t padded_mac[8] = {0, 0};
 244     int ret;
 245
 246     /* Some old phyp versions give the mac address in an 8-byte
 247      * property.  The kernel driver has an insane workaround for this;
 248      * rather than doing the obvious thing and checking the property
 249      * length, it checks whether the first byte has 0b10 in the low
 250      * bits.  If a correct 6-byte property has a different first byte
 251      * the kernel will get the wrong mac address, overrunning its
 252      * buffer in the process (read only, thank goodness).
 253      *
 254      * Here we workaround the kernel workaround by always supplying an
 255      * 8-byte property, with the mac address in the last six bytes */
 256     memcpy(&padded_mac[2], &vdev->nicconf.macaddr, ETH_ALEN);
 257     ret = fdt_setprop(fdt, node_off, "local-mac-address",
 258                       padded_mac, sizeof(padded_mac));
 259     if (ret < 0) {
 260         return ret;
 261     }
 262
 263     ret = fdt_setprop_cell(fdt, node_off, "ibm,mac-address-filters", 0);
 264     if (ret < 0) {
 265         return ret;
 266     }
 267
 268     return 0;
 269 }
 270
 271 static int check_bd(VIOsPAPRVLANDevice *dev, vlan_bd_t bd,
 272                     target_ulong alignment)
 273 {
 274     if ((VLAN_BD_ADDR(bd) % alignment)
 275         || (VLAN_BD_LEN(bd) % alignment)) {
 276         return -1;
 277     }
 278
 279     if (!spapr_vio_dma_valid(&dev->sdev, VLAN_BD_ADDR(bd),
 280                              VLAN_BD_LEN(bd), DMA_DIRECTION_FROM_DEVICE)
 281         || !spapr_vio_dma_valid(&dev->sdev, VLAN_BD_ADDR(bd),
 282                                 VLAN_BD_LEN(bd), DMA_DIRECTION_TO_DEVICE)) {
 283         return -1;
 284     }
 285
 286     return 0;
 287 }
 288
 289 static target_ulong h_register_logical_lan(PowerPCCPU *cpu,
 290                                            sPAPREnvironment *spapr,
 291                                            target_ulong opcode,
 292                                            target_ulong *args)
 293 {
 294     target_ulong reg = args[0];
 295     target_ulong buf_list = args[1];
 296     target_ulong rec_queue = args[2];
 297     target_ulong filter_list = args[3];
 298     VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 299     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 300     vlan_bd_t filter_list_bd;
 301
 302     if (!dev) {
 303         return H_PARAMETER;
 304     }
 305
 306     if (dev->isopen) {
 307         hcall_dprintf("H_REGISTER_LOGICAL_LAN called twice without "
 308                       "H_FREE_LOGICAL_LAN\n");
 309         return H_RESOURCE;
 310     }
 311
 312     if (check_bd(dev, VLAN_VALID_BD(buf_list, SPAPR_TCE_PAGE_SIZE),
 313                  SPAPR_TCE_PAGE_SIZE) < 0) {
 314         hcall_dprintf("Bad buf_list 0x" TARGET_FMT_lx "\n", buf_list);
 315         return H_PARAMETER;
 316     }
 317
 318     filter_list_bd = VLAN_VALID_BD(filter_list, SPAPR_TCE_PAGE_SIZE);
 319     if (check_bd(dev, filter_list_bd, SPAPR_TCE_PAGE_SIZE) < 0) {
 320         hcall_dprintf("Bad filter_list 0x" TARGET_FMT_lx "\n", filter_list);
 321         return H_PARAMETER;
 322     }
 323
 324     if (!(rec_queue & VLAN_BD_VALID)
 325         || (check_bd(dev, rec_queue, VLAN_RQ_ALIGNMENT) < 0)) {
 326         hcall_dprintf("Bad receive queue\n");
 327         return H_PARAMETER;
 328     }
 329
 330     dev->buf_list = buf_list;
 331     sdev->signal_state = 0;
 332
 333     rec_queue &= ~VLAN_BD_TOGGLE;
 334
 335     /* Initialize the buffer list */
 336     vio_stq(sdev, buf_list, rec_queue);
 337     vio_stq(sdev, buf_list + 8, filter_list_bd);
 338     spapr_vio_dma_set(sdev, buf_list + VLAN_RX_BDS_OFF, 0,
 339                       SPAPR_TCE_PAGE_SIZE - VLAN_RX_BDS_OFF);
 340     dev->add_buf_ptr = VLAN_RX_BDS_OFF - 8;
 341     dev->use_buf_ptr = VLAN_RX_BDS_OFF - 8;
 342     dev->rx_bufs = 0;
 343     dev->rxq_ptr = 0;
 344
 345     /* Initialize the receive queue */
 346     spapr_vio_dma_set(sdev, VLAN_BD_ADDR(rec_queue), 0, VLAN_BD_LEN(rec_queue));
 347
 348     dev->isopen = 1;
 349     qemu_flush_queued_packets(qemu_get_queue(dev->nic));
 350
 351     return H_SUCCESS;
 352 }
 353
 354
 355 static target_ulong h_free_logical_lan(PowerPCCPU *cpu, sPAPREnvironment *spapr,
 356                                        target_ulong opcode, target_ulong *args)
 357 {
 358     target_ulong reg = args[0];
 359     VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 360     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 361
 362     if (!dev) {
 363         return H_PARAMETER;
 364     }
 365
 366     if (!dev->isopen) {
 367         hcall_dprintf("H_FREE_LOGICAL_LAN called without "
 368                       "H_REGISTER_LOGICAL_LAN\n");
 369         return H_RESOURCE;
 370     }
 371
 372     spapr_vlan_reset(sdev);
 373     return H_SUCCESS;
 374 }
 375
 376 static target_ulong h_add_logical_lan_buffer(PowerPCCPU *cpu,
 377                                              sPAPREnvironment *spapr,
 378                                              target_ulong opcode,
 379                                              target_ulong *args)
 380 {
 381     target_ulong reg = args[0];
 382     target_ulong buf = args[1];
 383     VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 384     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 385     vlan_bd_t bd;
 386
 387     DPRINTF("H_ADD_LOGICAL_LAN_BUFFER(0x" TARGET_FMT_lx
 388             ", 0x" TARGET_FMT_lx ")\n", reg, buf);
 389
 390     if (!sdev) {
 391         hcall_dprintf("Bad device\n");
 392         return H_PARAMETER;
 393     }
 394
 395     if ((check_bd(dev, buf, 4) < 0)
 396         || (VLAN_BD_LEN(buf) < 16)) {
 397         hcall_dprintf("Bad buffer enqueued\n");
 398         return H_PARAMETER;
 399     }
 400
 401     if (!dev->isopen || dev->rx_bufs >= VLAN_MAX_BUFS) {
 402         return H_RESOURCE;
 403     }
 404
 405     do {
 406         dev->add_buf_ptr += 8;
 407         if (dev->add_buf_ptr >= (VLAN_RX_BDS_LEN + VLAN_RX_BDS_OFF)) {
 408             dev->add_buf_ptr = VLAN_RX_BDS_OFF;
 409         }
 410
 411         bd = vio_ldq(sdev, dev->buf_list + dev->add_buf_ptr);
 412     } while (bd & VLAN_BD_VALID);
 413
 414     vio_stq(sdev, dev->buf_list + dev->add_buf_ptr, buf);
 415
 416     dev->rx_bufs++;
 417
 418     qemu_flush_queued_packets(qemu_get_queue(dev->nic));
 419
 420     DPRINTF("h_add_logical_lan_buffer():  Added buf  ptr=%d  rx_bufs=%d"
 421             " bd=0x%016llx\n", dev->add_buf_ptr, dev->rx_bufs,
 422             (unsigned long long)buf);
 423
 424     return H_SUCCESS;
 425 }
 426
 427 static target_ulong h_send_logical_lan(PowerPCCPU *cpu, sPAPREnvironment *spapr,
 428                                        target_ulong opcode, target_ulong *args)
 429 {
 430     target_ulong reg = args[0];
 431     target_ulong *bufs = args + 1;
 432     target_ulong continue_token = args[7];
 433     VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 434     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 435     unsigned total_len;
 436     uint8_t *lbuf, *p;
 437     int i, nbufs;
 438     int ret;
 439
 440     DPRINTF("H_SEND_LOGICAL_LAN(0x" TARGET_FMT_lx ", <bufs>, 0x"
 441             TARGET_FMT_lx ")\n", reg, continue_token);
 442
 443     if (!sdev) {
 444         return H_PARAMETER;
 445     }
 446
 447     DPRINTF("rxbufs = %d\n", dev->rx_bufs);
 448
 449     if (!dev->isopen) {
 450         return H_DROPPED;
 451     }
 452
 453     if (continue_token) {
 454         return H_HARDWARE; /* FIXME actually handle this */
 455     }
 456
 457     total_len = 0;
 458     for (i = 0; i < 6; i++) {
 459         DPRINTF("   buf desc: 0x" TARGET_FMT_lx "\n", bufs[i]);
 460         if (!(bufs[i] & VLAN_BD_VALID)) {
 461             break;
 462         }
 463         total_len += VLAN_BD_LEN(bufs[i]);
 464     }
 465
 466     nbufs = i;
 467     DPRINTF("h_send_logical_lan() %d buffers, total length 0x%x\n",
 468             nbufs, total_len);
 469
 470     if (total_len == 0) {
 471         return H_SUCCESS;
 472     }
 473
 474     if (total_len > MAX_PACKET_SIZE) {
 475         /* Don't let the guest force too large an allocation */
 476         return H_RESOURCE;
 477     }
 478
 479     lbuf = alloca(total_len);
 480     p = lbuf;
 481     for (i = 0; i < nbufs; i++) {
 482         ret = spapr_vio_dma_read(sdev, VLAN_BD_ADDR(bufs[i]),
 483                                  p, VLAN_BD_LEN(bufs[i]));
 484         if (ret < 0) {
 485             return ret;
 486         }
 487
 488         p += VLAN_BD_LEN(bufs[i]);
 489     }
 490
 491     qemu_send_packet(qemu_get_queue(dev->nic), lbuf, total_len);
 492
 493     return H_SUCCESS;
 494 }
 495
 496 static target_ulong h_multicast_ctrl(PowerPCCPU *cpu, sPAPREnvironment *spapr,
 497                                      target_ulong opcode, target_ulong *args)
 498 {
 499     target_ulong reg = args[0];
 500     VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 501
 502     if (!dev) {
 503         return H_PARAMETER;
 504     }
 505
 506     return H_SUCCESS;
 507 }
 508
 509 static Property spapr_vlan_properties[] = {
 510     DEFINE_SPAPR_PROPERTIES(VIOsPAPRVLANDevice, sdev),
 511     DEFINE_NIC_PROPERTIES(VIOsPAPRVLANDevice, nicconf),
 512     DEFINE_PROP_END_OF_LIST(),
 513 };
 514
 515 static const VMStateDescription vmstate_spapr_llan = {
 516     .name = "spapr_llan",
 517     .version_id = 1,
 518     .minimum_version_id = 1,
 519     .fields = (VMStateField[]) {
 520         VMSTATE_SPAPR_VIO(sdev, VIOsPAPRVLANDevice),
 521         /* LLAN state */
 522         VMSTATE_BOOL(isopen, VIOsPAPRVLANDevice),
 523         VMSTATE_UINTTL(buf_list, VIOsPAPRVLANDevice),
 524         VMSTATE_UINT32(add_buf_ptr, VIOsPAPRVLANDevice),
 525         VMSTATE_UINT32(use_buf_ptr, VIOsPAPRVLANDevice),
 526         VMSTATE_UINT32(rx_bufs, VIOsPAPRVLANDevice),
 527         VMSTATE_UINTTL(rxq_ptr, VIOsPAPRVLANDevice),
 528
 529         VMSTATE_END_OF_LIST()
 530     },
 531 };
 532
 533 static void spapr_vlan_class_init(ObjectClass *klass, void *data)
 534 {
 535     DeviceClass *dc = DEVICE_CLASS(klass);
 536     VIOsPAPRDeviceClass *k = VIO_SPAPR_DEVICE_CLASS(klass);
 537
 538     k->init = spapr_vlan_init;
 539     k->reset = spapr_vlan_reset;
 540     k->devnode = spapr_vlan_devnode;
 541     k->dt_name = "l-lan";
 542     k->dt_type = "network";
 543     k->dt_compatible = "IBM,l-lan";
 544     k->signal_mask = 0x1;
 545     set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
 546     dc->props = spapr_vlan_properties;
 547     k->rtce_window_size = 0x10000000;
 548     dc->vmsd = &vmstate_spapr_llan;
 549 }
 550
 551 static const TypeInfo spapr_vlan_info = {
 552     .name          = TYPE_VIO_SPAPR_VLAN_DEVICE,
 553     .parent        = TYPE_VIO_SPAPR_DEVICE,
 554     .instance_size = sizeof(VIOsPAPRVLANDevice),
 555     .class_init    = spapr_vlan_class_init,
 556 };
 557
 558 static void spapr_vlan_register_types(void)
 559 {
 560     spapr_register_hypercall(H_REGISTER_LOGICAL_LAN, h_register_logical_lan);
 561     spapr_register_hypercall(H_FREE_LOGICAL_LAN, h_free_logical_lan);
 562     spapr_register_hypercall(H_SEND_LOGICAL_LAN, h_send_logical_lan);
 563     spapr_register_hypercall(H_ADD_LOGICAL_LAN_BUFFER,
 564                              h_add_logical_lan_buffer);
 565     spapr_register_hypercall(H_MULTICAST_CTRL, h_multicast_ctrl);
 566     type_register_static(&spapr_vlan_info);
 567 }
 568
 569 type_init(spapr_vlan_register_types)