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 "qemu/osdep.h"
  28 #include "hw/hw.h"
  29 #include "net/net.h"
  30 #include "hw/qdev.h"
  31 #include "hw/ppc/spapr.h"
  32 #include "hw/ppc/spapr_vio.h"
  33 #include "sysemu/sysemu.h"
  34
  35 #include <libfdt.h>
  36
  37 #define ETH_ALEN        6
  38 #define MAX_PACKET_SIZE 65536
  39
  40 /*#define DEBUG*/
  41
  42 #ifdef DEBUG
  43 #define DPRINTF(fmt...) do { fprintf(stderr, fmt); } while (0)
  44 #else
  45 #define DPRINTF(fmt...)
  46 #endif
  47
  48 /*
  49  * Virtual LAN device
  50  */
  51
  52 typedef uint64_t vlan_bd_t;
  53
  54 #define VLAN_BD_VALID        0x8000000000000000ULL
  55 #define VLAN_BD_TOGGLE       0x4000000000000000ULL
  56 #define VLAN_BD_NO_CSUM      0x0200000000000000ULL
  57 #define VLAN_BD_CSUM_GOOD    0x0100000000000000ULL
  58 #define VLAN_BD_LEN_MASK     0x00ffffff00000000ULL
  59 #define VLAN_BD_LEN(bd)      (((bd) & VLAN_BD_LEN_MASK) >> 32)
  60 #define VLAN_BD_ADDR_MASK    0x00000000ffffffffULL
  61 #define VLAN_BD_ADDR(bd)     ((bd) & VLAN_BD_ADDR_MASK)
  62
  63 #define VLAN_VALID_BD(addr, len) (VLAN_BD_VALID | \
  64                                   (((len) << 32) & VLAN_BD_LEN_MASK) |  \
  65                                   (addr & VLAN_BD_ADDR_MASK))
  66
  67 #define VLAN_RXQC_TOGGLE     0x80
  68 #define VLAN_RXQC_VALID      0x40
  69 #define VLAN_RXQC_NO_CSUM    0x02
  70 #define VLAN_RXQC_CSUM_GOOD  0x01
  71
  72 #define VLAN_RQ_ALIGNMENT    16
  73 #define VLAN_RXQ_BD_OFF      0
  74 #define VLAN_FILTER_BD_OFF   8
  75 #define VLAN_RX_BDS_OFF      16
  76 /*
  77  * The final 8 bytes of the buffer list is a counter of frames dropped
  78  * because there was not a buffer in the buffer list capable of holding
  79  * the frame. We must avoid it, or the operating system will report garbage
  80  * for this statistic.
  81  */
  82 #define VLAN_RX_BDS_LEN      (SPAPR_TCE_PAGE_SIZE - VLAN_RX_BDS_OFF - 8)
  83 #define VLAN_MAX_BUFS        (VLAN_RX_BDS_LEN / 8)
  84
  85 #define TYPE_VIO_SPAPR_VLAN_DEVICE "spapr-vlan"
  86 #define VIO_SPAPR_VLAN_DEVICE(obj) \
  87      OBJECT_CHECK(VIOsPAPRVLANDevice, (obj), TYPE_VIO_SPAPR_VLAN_DEVICE)
  88
  89 typedef struct VIOsPAPRVLANDevice {
  90     VIOsPAPRDevice sdev;
  91     NICConf nicconf;
  92     NICState *nic;
  93     bool isopen;
  94     target_ulong buf_list;
  95     uint32_t add_buf_ptr, use_buf_ptr, rx_bufs;
  96     target_ulong rxq_ptr;
  97 } VIOsPAPRVLANDevice;
  98
  99 static int spapr_vlan_can_receive(NetClientState *nc)
 100 {
 101     VIOsPAPRVLANDevice *dev = qemu_get_nic_opaque(nc);
 102
 103     return (dev->isopen && dev->rx_bufs > 0);
 104 }
 105
 106 static ssize_t spapr_vlan_receive(NetClientState *nc, const uint8_t *buf,
 107                                   size_t size)
 108 {
 109     VIOsPAPRVLANDevice *dev = qemu_get_nic_opaque(nc);
 110     VIOsPAPRDevice *sdev = VIO_SPAPR_DEVICE(dev);
 111     vlan_bd_t rxq_bd = vio_ldq(sdev, dev->buf_list + VLAN_RXQ_BD_OFF);
 112     vlan_bd_t bd;
 113     int buf_ptr = dev->use_buf_ptr;
 114     uint64_t handle;
 115     uint8_t control;
 116
 117     DPRINTF("spapr_vlan_receive() [%s] rx_bufs=%d\n", sdev->qdev.id,
 118             dev->rx_bufs);
 119
 120     if (!dev->isopen) {
 121         return -1;
 122     }
 123
 124     if (!dev->rx_bufs) {
 125         return -1;
 126     }
 127
 128     do {
 129         buf_ptr += 8;
 130         if (buf_ptr >= (VLAN_RX_BDS_LEN + VLAN_RX_BDS_OFF)) {
 131             buf_ptr = VLAN_RX_BDS_OFF;
 132         }
 133
 134         bd = vio_ldq(sdev, dev->buf_list + buf_ptr);
 135         DPRINTF("use_buf_ptr=%d bd=0x%016llx\n",
 136                 buf_ptr, (unsigned long long)bd);
 137     } while ((!(bd & VLAN_BD_VALID) || (VLAN_BD_LEN(bd) < (size + 8)))
 138              && (buf_ptr != dev->use_buf_ptr));
 139
 140     if (!(bd & VLAN_BD_VALID) || (VLAN_BD_LEN(bd) < (size + 8))) {
 141         /* Failed to find a suitable buffer */
 142         return -1;
 143     }
 144
 145     /* Remove the buffer from the pool */
 146     dev->rx_bufs--;
 147     dev->use_buf_ptr = buf_ptr;
 148     vio_stq(sdev, dev->buf_list + dev->use_buf_ptr, 0);
 149
 150     DPRINTF("Found buffer: ptr=%d num=%d\n", dev->use_buf_ptr, dev->rx_bufs);
 151
 152     /* Transfer the packet data */
 153     if (spapr_vio_dma_write(sdev, VLAN_BD_ADDR(bd) + 8, buf, size) < 0) {
 154         return -1;
 155     }
 156
 157     DPRINTF("spapr_vlan_receive: DMA write completed\n");
 158
 159     /* Update the receive queue */
 160     control = VLAN_RXQC_TOGGLE | VLAN_RXQC_VALID;
 161     if (rxq_bd & VLAN_BD_TOGGLE) {
 162         control ^= VLAN_RXQC_TOGGLE;
 163     }
 164
 165     handle = vio_ldq(sdev, VLAN_BD_ADDR(bd));
 166     vio_stq(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 8, handle);
 167     vio_stl(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 4, size);
 168     vio_sth(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 2, 8);
 169     vio_stb(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr, control);
 170
 171     DPRINTF("wrote rxq entry (ptr=0x%llx): 0x%016llx 0x%016llx\n",
 172             (unsigned long long)dev->rxq_ptr,
 173             (unsigned long long)vio_ldq(sdev, VLAN_BD_ADDR(rxq_bd) +
 174                                         dev->rxq_ptr),
 175             (unsigned long long)vio_ldq(sdev, VLAN_BD_ADDR(rxq_bd) +
 176                                         dev->rxq_ptr + 8));
 177
 178     dev->rxq_ptr += 16;
 179     if (dev->rxq_ptr >= VLAN_BD_LEN(rxq_bd)) {
 180         dev->rxq_ptr = 0;
 181         vio_stq(sdev, dev->buf_list + VLAN_RXQ_BD_OFF, rxq_bd ^ VLAN_BD_TOGGLE);
 182     }
 183
 184     if (sdev->signal_state & 1) {
 185         qemu_irq_pulse(spapr_vio_qirq(sdev));
 186     }
 187
 188     return size;
 189 }
 190
 191 static NetClientInfo net_spapr_vlan_info = {
 192     .type = NET_CLIENT_OPTIONS_KIND_NIC,
 193     .size = sizeof(NICState),
 194     .can_receive = spapr_vlan_can_receive,
 195     .receive = spapr_vlan_receive,
 196 };
 197
 198 static void spapr_vlan_reset(VIOsPAPRDevice *sdev)
 199 {
 200     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 201
 202     dev->buf_list = 0;
 203     dev->rx_bufs = 0;
 204     dev->isopen = 0;
 205 }
 206
 207 static void spapr_vlan_realize(VIOsPAPRDevice *sdev, Error **errp)
 208 {
 209     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 210
 211     qemu_macaddr_default_if_unset(&dev->nicconf.macaddr);
 212
 213     dev->nic = qemu_new_nic(&net_spapr_vlan_info, &dev->nicconf,
 214                             object_get_typename(OBJECT(sdev)), sdev->qdev.id, dev);
 215     qemu_format_nic_info_str(qemu_get_queue(dev->nic), dev->nicconf.macaddr.a);
 216 }
 217
 218 static void spapr_vlan_instance_init(Object *obj)
 219 {
 220     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(obj);
 221
 222     device_add_bootindex_property(obj, &dev->nicconf.bootindex,
 223                                   "bootindex", "",
 224                                   DEVICE(dev), NULL);
 225 }
 226
 227 void spapr_vlan_create(VIOsPAPRBus *bus, NICInfo *nd)
 228 {
 229     DeviceState *dev;
 230
 231     dev = qdev_create(&bus->bus, "spapr-vlan");
 232
 233     qdev_set_nic_properties(dev, nd);
 234
 235     qdev_init_nofail(dev);
 236 }
 237
 238 static int spapr_vlan_devnode(VIOsPAPRDevice *dev, void *fdt, int node_off)
 239 {
 240     VIOsPAPRVLANDevice *vdev = VIO_SPAPR_VLAN_DEVICE(dev);
 241     uint8_t padded_mac[8] = {0, 0};
 242     int ret;
 243
 244     /* Some old phyp versions give the mac address in an 8-byte
 245      * property.  The kernel driver has an insane workaround for this;
 246      * rather than doing the obvious thing and checking the property
 247      * length, it checks whether the first byte has 0b10 in the low
 248      * bits.  If a correct 6-byte property has a different first byte
 249      * the kernel will get the wrong mac address, overrunning its
 250      * buffer in the process (read only, thank goodness).
 251      *
 252      * Here we workaround the kernel workaround by always supplying an
 253      * 8-byte property, with the mac address in the last six bytes */
 254     memcpy(&padded_mac[2], &vdev->nicconf.macaddr, ETH_ALEN);
 255     ret = fdt_setprop(fdt, node_off, "local-mac-address",
 256                       padded_mac, sizeof(padded_mac));
 257     if (ret < 0) {
 258         return ret;
 259     }
 260
 261     ret = fdt_setprop_cell(fdt, node_off, "ibm,mac-address-filters", 0);
 262     if (ret < 0) {
 263         return ret;
 264     }
 265
 266     return 0;
 267 }
 268
 269 static int check_bd(VIOsPAPRVLANDevice *dev, vlan_bd_t bd,
 270                     target_ulong alignment)
 271 {
 272     if ((VLAN_BD_ADDR(bd) % alignment)
 273         || (VLAN_BD_LEN(bd) % alignment)) {
 274         return -1;
 275     }
 276
 277     if (!spapr_vio_dma_valid(&dev->sdev, VLAN_BD_ADDR(bd),
 278                              VLAN_BD_LEN(bd), DMA_DIRECTION_FROM_DEVICE)
 279         || !spapr_vio_dma_valid(&dev->sdev, VLAN_BD_ADDR(bd),
 280                                 VLAN_BD_LEN(bd), DMA_DIRECTION_TO_DEVICE)) {
 281         return -1;
 282     }
 283
 284     return 0;
 285 }
 286
 287 static target_ulong h_register_logical_lan(PowerPCCPU *cpu,
 288                                            sPAPRMachineState *spapr,
 289                                            target_ulong opcode,
 290                                            target_ulong *args)
 291 {
 292     target_ulong reg = args[0];
 293     target_ulong buf_list = args[1];
 294     target_ulong rec_queue = args[2];
 295     target_ulong filter_list = args[3];
 296     VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 297     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 298     vlan_bd_t filter_list_bd;
 299
 300     if (!dev) {
 301         return H_PARAMETER;
 302     }
 303
 304     if (dev->isopen) {
 305         hcall_dprintf("H_REGISTER_LOGICAL_LAN called twice without "
 306                       "H_FREE_LOGICAL_LAN\n");
 307         return H_RESOURCE;
 308     }
 309
 310     if (check_bd(dev, VLAN_VALID_BD(buf_list, SPAPR_TCE_PAGE_SIZE),
 311                  SPAPR_TCE_PAGE_SIZE) < 0) {
 312         hcall_dprintf("Bad buf_list 0x" TARGET_FMT_lx "\n", buf_list);
 313         return H_PARAMETER;
 314     }
 315
 316     filter_list_bd = VLAN_VALID_BD(filter_list, SPAPR_TCE_PAGE_SIZE);
 317     if (check_bd(dev, filter_list_bd, SPAPR_TCE_PAGE_SIZE) < 0) {
 318         hcall_dprintf("Bad filter_list 0x" TARGET_FMT_lx "\n", filter_list);
 319         return H_PARAMETER;
 320     }
 321
 322     if (!(rec_queue & VLAN_BD_VALID)
 323         || (check_bd(dev, rec_queue, VLAN_RQ_ALIGNMENT) < 0)) {
 324         hcall_dprintf("Bad receive queue\n");
 325         return H_PARAMETER;
 326     }
 327
 328     dev->buf_list = buf_list;
 329     sdev->signal_state = 0;
 330
 331     rec_queue &= ~VLAN_BD_TOGGLE;
 332
 333     /* Initialize the buffer list */
 334     vio_stq(sdev, buf_list, rec_queue);
 335     vio_stq(sdev, buf_list + 8, filter_list_bd);
 336     spapr_vio_dma_set(sdev, buf_list + VLAN_RX_BDS_OFF, 0,
 337                       SPAPR_TCE_PAGE_SIZE - VLAN_RX_BDS_OFF);
 338     dev->add_buf_ptr = VLAN_RX_BDS_OFF - 8;
 339     dev->use_buf_ptr = VLAN_RX_BDS_OFF - 8;
 340     dev->rx_bufs = 0;
 341     dev->rxq_ptr = 0;
 342
 343     /* Initialize the receive queue */
 344     spapr_vio_dma_set(sdev, VLAN_BD_ADDR(rec_queue), 0, VLAN_BD_LEN(rec_queue));
 345
 346     dev->isopen = 1;
 347     qemu_flush_queued_packets(qemu_get_queue(dev->nic));
 348
 349     return H_SUCCESS;
 350 }
 351
 352
 353 static target_ulong h_free_logical_lan(PowerPCCPU *cpu,
 354                                        sPAPRMachineState *spapr,
 355                                        target_ulong opcode, target_ulong *args)
 356 {
 357     target_ulong reg = args[0];
 358     VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 359     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 360
 361     if (!dev) {
 362         return H_PARAMETER;
 363     }
 364
 365     if (!dev->isopen) {
 366         hcall_dprintf("H_FREE_LOGICAL_LAN called without "
 367                       "H_REGISTER_LOGICAL_LAN\n");
 368         return H_RESOURCE;
 369     }
 370
 371     spapr_vlan_reset(sdev);
 372     return H_SUCCESS;
 373 }
 374
 375 static target_ulong h_add_logical_lan_buffer(PowerPCCPU *cpu,
 376                                              sPAPRMachineState *spapr,
 377                                              target_ulong opcode,
 378                                              target_ulong *args)
 379 {
 380     target_ulong reg = args[0];
 381     target_ulong buf = args[1];
 382     VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 383     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 384     vlan_bd_t bd;
 385
 386     DPRINTF("H_ADD_LOGICAL_LAN_BUFFER(0x" TARGET_FMT_lx
 387             ", 0x" TARGET_FMT_lx ")\n", reg, buf);
 388
 389     if (!sdev) {
 390         hcall_dprintf("Bad device\n");
 391         return H_PARAMETER;
 392     }
 393
 394     if ((check_bd(dev, buf, 4) < 0)
 395         || (VLAN_BD_LEN(buf) < 16)) {
 396         hcall_dprintf("Bad buffer enqueued\n");
 397         return H_PARAMETER;
 398     }
 399
 400     if (!dev->isopen || dev->rx_bufs >= VLAN_MAX_BUFS) {
 401         return H_RESOURCE;
 402     }
 403
 404     do {
 405         dev->add_buf_ptr += 8;
 406         if (dev->add_buf_ptr >= (VLAN_RX_BDS_LEN + VLAN_RX_BDS_OFF)) {
 407             dev->add_buf_ptr = VLAN_RX_BDS_OFF;
 408         }
 409
 410         bd = vio_ldq(sdev, dev->buf_list + dev->add_buf_ptr);
 411     } while (bd & VLAN_BD_VALID);
 412
 413     vio_stq(sdev, dev->buf_list + dev->add_buf_ptr, buf);
 414
 415     dev->rx_bufs++;
 416
 417     qemu_flush_queued_packets(qemu_get_queue(dev->nic));
 418
 419     DPRINTF("h_add_logical_lan_buffer():  Added buf  ptr=%d  rx_bufs=%d"
 420             " bd=0x%016llx\n", dev->add_buf_ptr, dev->rx_bufs,
 421             (unsigned long long)buf);
 422
 423     return H_SUCCESS;
 424 }
 425
 426 static target_ulong h_send_logical_lan(PowerPCCPU *cpu,
 427                                        sPAPRMachineState *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, sPAPRMachineState *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->realize = spapr_vlan_realize;
 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     .instance_init = spapr_vlan_instance_init,
 557 };
 558
 559 static void spapr_vlan_register_types(void)
 560 {
 561     spapr_register_hypercall(H_REGISTER_LOGICAL_LAN, h_register_logical_lan);
 562     spapr_register_hypercall(H_FREE_LOGICAL_LAN, h_free_logical_lan);
 563     spapr_register_hypercall(H_SEND_LOGICAL_LAN, h_send_logical_lan);
 564     spapr_register_hypercall(H_ADD_LOGICAL_LAN_BUFFER,
 565                              h_add_logical_lan_buffer);
 566     spapr_register_hypercall(H_MULTICAST_CTRL, h_multicast_ctrl);
 567     type_register_static(&spapr_vlan_info);
 568 }
 569
 570 type_init(spapr_vlan_register_types)