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 NetClientInfo net_spapr_vlan_info = {
 191     .type = NET_CLIENT_OPTIONS_KIND_NIC,
 192     .size = sizeof(NICState),
 193     .can_receive = spapr_vlan_can_receive,
 194     .receive = spapr_vlan_receive,
 195 };
 196
 197 static void spapr_vlan_reset(VIOsPAPRDevice *sdev)
 198 {
 199     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 200
 201     dev->buf_list = 0;
 202     dev->rx_bufs = 0;
 203     dev->isopen = 0;
 204 }
 205
 206 static void spapr_vlan_realize(VIOsPAPRDevice *sdev, Error **errp)
 207 {
 208     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 209
 210     qemu_macaddr_default_if_unset(&dev->nicconf.macaddr);
 211
 212     dev->nic = qemu_new_nic(&net_spapr_vlan_info, &dev->nicconf,
 213                             object_get_typename(OBJECT(sdev)), sdev->qdev.id, dev);
 214     qemu_format_nic_info_str(qemu_get_queue(dev->nic), dev->nicconf.macaddr.a);
 215 }
 216
 217 static void spapr_vlan_instance_init(Object *obj)
 218 {
 219     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(obj);
 220
 221     device_add_bootindex_property(obj, &dev->nicconf.bootindex,
 222                                   "bootindex", "",
 223                                   DEVICE(dev), NULL);
 224 }
 225
 226 void spapr_vlan_create(VIOsPAPRBus *bus, NICInfo *nd)
 227 {
 228     DeviceState *dev;
 229
 230     dev = qdev_create(&bus->bus, "spapr-vlan");
 231
 232     qdev_set_nic_properties(dev, nd);
 233
 234     qdev_init_nofail(dev);
 235 }
 236
 237 static int spapr_vlan_devnode(VIOsPAPRDevice *dev, void *fdt, int node_off)
 238 {
 239     VIOsPAPRVLANDevice *vdev = VIO_SPAPR_VLAN_DEVICE(dev);
 240     uint8_t padded_mac[8] = {0, 0};
 241     int ret;
 242
 243     /* Some old phyp versions give the mac address in an 8-byte
 244      * property.  The kernel driver has an insane workaround for this;
 245      * rather than doing the obvious thing and checking the property
 246      * length, it checks whether the first byte has 0b10 in the low
 247      * bits.  If a correct 6-byte property has a different first byte
 248      * the kernel will get the wrong mac address, overrunning its
 249      * buffer in the process (read only, thank goodness).
 250      *
 251      * Here we workaround the kernel workaround by always supplying an
 252      * 8-byte property, with the mac address in the last six bytes */
 253     memcpy(&padded_mac[2], &vdev->nicconf.macaddr, ETH_ALEN);
 254     ret = fdt_setprop(fdt, node_off, "local-mac-address",
 255                       padded_mac, sizeof(padded_mac));
 256     if (ret < 0) {
 257         return ret;
 258     }
 259
 260     ret = fdt_setprop_cell(fdt, node_off, "ibm,mac-address-filters", 0);
 261     if (ret < 0) {
 262         return ret;
 263     }
 264
 265     return 0;
 266 }
 267
 268 static int check_bd(VIOsPAPRVLANDevice *dev, vlan_bd_t bd,
 269                     target_ulong alignment)
 270 {
 271     if ((VLAN_BD_ADDR(bd) % alignment)
 272         || (VLAN_BD_LEN(bd) % alignment)) {
 273         return -1;
 274     }
 275
 276     if (!spapr_vio_dma_valid(&dev->sdev, VLAN_BD_ADDR(bd),
 277                              VLAN_BD_LEN(bd), DMA_DIRECTION_FROM_DEVICE)
 278         || !spapr_vio_dma_valid(&dev->sdev, VLAN_BD_ADDR(bd),
 279                                 VLAN_BD_LEN(bd), DMA_DIRECTION_TO_DEVICE)) {
 280         return -1;
 281     }
 282
 283     return 0;
 284 }
 285
 286 static target_ulong h_register_logical_lan(PowerPCCPU *cpu,
 287                                            sPAPRMachineState *spapr,
 288                                            target_ulong opcode,
 289                                            target_ulong *args)
 290 {
 291     target_ulong reg = args[0];
 292     target_ulong buf_list = args[1];
 293     target_ulong rec_queue = args[2];
 294     target_ulong filter_list = args[3];
 295     VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 296     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 297     vlan_bd_t filter_list_bd;
 298
 299     if (!dev) {
 300         return H_PARAMETER;
 301     }
 302
 303     if (dev->isopen) {
 304         hcall_dprintf("H_REGISTER_LOGICAL_LAN called twice without "
 305                       "H_FREE_LOGICAL_LAN\n");
 306         return H_RESOURCE;
 307     }
 308
 309     if (check_bd(dev, VLAN_VALID_BD(buf_list, SPAPR_TCE_PAGE_SIZE),
 310                  SPAPR_TCE_PAGE_SIZE) < 0) {
 311         hcall_dprintf("Bad buf_list 0x" TARGET_FMT_lx "\n", buf_list);
 312         return H_PARAMETER;
 313     }
 314
 315     filter_list_bd = VLAN_VALID_BD(filter_list, SPAPR_TCE_PAGE_SIZE);
 316     if (check_bd(dev, filter_list_bd, SPAPR_TCE_PAGE_SIZE) < 0) {
 317         hcall_dprintf("Bad filter_list 0x" TARGET_FMT_lx "\n", filter_list);
 318         return H_PARAMETER;
 319     }
 320
 321     if (!(rec_queue & VLAN_BD_VALID)
 322         || (check_bd(dev, rec_queue, VLAN_RQ_ALIGNMENT) < 0)) {
 323         hcall_dprintf("Bad receive queue\n");
 324         return H_PARAMETER;
 325     }
 326
 327     dev->buf_list = buf_list;
 328     sdev->signal_state = 0;
 329
 330     rec_queue &= ~VLAN_BD_TOGGLE;
 331
 332     /* Initialize the buffer list */
 333     vio_stq(sdev, buf_list, rec_queue);
 334     vio_stq(sdev, buf_list + 8, filter_list_bd);
 335     spapr_vio_dma_set(sdev, buf_list + VLAN_RX_BDS_OFF, 0,
 336                       SPAPR_TCE_PAGE_SIZE - VLAN_RX_BDS_OFF);
 337     dev->add_buf_ptr = VLAN_RX_BDS_OFF - 8;
 338     dev->use_buf_ptr = VLAN_RX_BDS_OFF - 8;
 339     dev->rx_bufs = 0;
 340     dev->rxq_ptr = 0;
 341
 342     /* Initialize the receive queue */
 343     spapr_vio_dma_set(sdev, VLAN_BD_ADDR(rec_queue), 0, VLAN_BD_LEN(rec_queue));
 344
 345     dev->isopen = 1;
 346     qemu_flush_queued_packets(qemu_get_queue(dev->nic));
 347
 348     return H_SUCCESS;
 349 }
 350
 351
 352 static target_ulong h_free_logical_lan(PowerPCCPU *cpu,
 353                                        sPAPRMachineState *spapr,
 354                                        target_ulong opcode, target_ulong *args)
 355 {
 356     target_ulong reg = args[0];
 357     VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 358     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 359
 360     if (!dev) {
 361         return H_PARAMETER;
 362     }
 363
 364     if (!dev->isopen) {
 365         hcall_dprintf("H_FREE_LOGICAL_LAN called without "
 366                       "H_REGISTER_LOGICAL_LAN\n");
 367         return H_RESOURCE;
 368     }
 369
 370     spapr_vlan_reset(sdev);
 371     return H_SUCCESS;
 372 }
 373
 374 static target_ulong h_add_logical_lan_buffer(PowerPCCPU *cpu,
 375                                              sPAPRMachineState *spapr,
 376                                              target_ulong opcode,
 377                                              target_ulong *args)
 378 {
 379     target_ulong reg = args[0];
 380     target_ulong buf = args[1];
 381     VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 382     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 383     vlan_bd_t bd;
 384
 385     DPRINTF("H_ADD_LOGICAL_LAN_BUFFER(0x" TARGET_FMT_lx
 386             ", 0x" TARGET_FMT_lx ")\n", reg, buf);
 387
 388     if (!sdev) {
 389         hcall_dprintf("Bad device\n");
 390         return H_PARAMETER;
 391     }
 392
 393     if ((check_bd(dev, buf, 4) < 0)
 394         || (VLAN_BD_LEN(buf) < 16)) {
 395         hcall_dprintf("Bad buffer enqueued\n");
 396         return H_PARAMETER;
 397     }
 398
 399     if (!dev->isopen || dev->rx_bufs >= VLAN_MAX_BUFS) {
 400         return H_RESOURCE;
 401     }
 402
 403     do {
 404         dev->add_buf_ptr += 8;
 405         if (dev->add_buf_ptr >= (VLAN_RX_BDS_LEN + VLAN_RX_BDS_OFF)) {
 406             dev->add_buf_ptr = VLAN_RX_BDS_OFF;
 407         }
 408
 409         bd = vio_ldq(sdev, dev->buf_list + dev->add_buf_ptr);
 410     } while (bd & VLAN_BD_VALID);
 411
 412     vio_stq(sdev, dev->buf_list + dev->add_buf_ptr, buf);
 413
 414     dev->rx_bufs++;
 415
 416     qemu_flush_queued_packets(qemu_get_queue(dev->nic));
 417
 418     DPRINTF("h_add_logical_lan_buffer():  Added buf  ptr=%d  rx_bufs=%d"
 419             " bd=0x%016llx\n", dev->add_buf_ptr, dev->rx_bufs,
 420             (unsigned long long)buf);
 421
 422     return H_SUCCESS;
 423 }
 424
 425 static target_ulong h_send_logical_lan(PowerPCCPU *cpu,
 426                                        sPAPRMachineState *spapr,
 427                                        target_ulong opcode, target_ulong *args)
 428 {
 429     target_ulong reg = args[0];
 430     target_ulong *bufs = args + 1;
 431     target_ulong continue_token = args[7];
 432     VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 433     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 434     unsigned total_len;
 435     uint8_t *lbuf, *p;
 436     int i, nbufs;
 437     int ret;
 438
 439     DPRINTF("H_SEND_LOGICAL_LAN(0x" TARGET_FMT_lx ", <bufs>, 0x"
 440             TARGET_FMT_lx ")\n", reg, continue_token);
 441
 442     if (!sdev) {
 443         return H_PARAMETER;
 444     }
 445
 446     DPRINTF("rxbufs = %d\n", dev->rx_bufs);
 447
 448     if (!dev->isopen) {
 449         return H_DROPPED;
 450     }
 451
 452     if (continue_token) {
 453         return H_HARDWARE; /* FIXME actually handle this */
 454     }
 455
 456     total_len = 0;
 457     for (i = 0; i < 6; i++) {
 458         DPRINTF("   buf desc: 0x" TARGET_FMT_lx "\n", bufs[i]);
 459         if (!(bufs[i] & VLAN_BD_VALID)) {
 460             break;
 461         }
 462         total_len += VLAN_BD_LEN(bufs[i]);
 463     }
 464
 465     nbufs = i;
 466     DPRINTF("h_send_logical_lan() %d buffers, total length 0x%x\n",
 467             nbufs, total_len);
 468
 469     if (total_len == 0) {
 470         return H_SUCCESS;
 471     }
 472
 473     if (total_len > MAX_PACKET_SIZE) {
 474         /* Don't let the guest force too large an allocation */
 475         return H_RESOURCE;
 476     }
 477
 478     lbuf = alloca(total_len);
 479     p = lbuf;
 480     for (i = 0; i < nbufs; i++) {
 481         ret = spapr_vio_dma_read(sdev, VLAN_BD_ADDR(bufs[i]),
 482                                  p, VLAN_BD_LEN(bufs[i]));
 483         if (ret < 0) {
 484             return ret;
 485         }
 486
 487         p += VLAN_BD_LEN(bufs[i]);
 488     }
 489
 490     qemu_send_packet(qemu_get_queue(dev->nic), lbuf, total_len);
 491
 492     return H_SUCCESS;
 493 }
 494
 495 static target_ulong h_multicast_ctrl(PowerPCCPU *cpu, sPAPRMachineState *spapr,
 496                                      target_ulong opcode, target_ulong *args)
 497 {
 498     target_ulong reg = args[0];
 499     VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 500
 501     if (!dev) {
 502         return H_PARAMETER;
 503     }
 504
 505     return H_SUCCESS;
 506 }
 507
 508 static Property spapr_vlan_properties[] = {
 509     DEFINE_SPAPR_PROPERTIES(VIOsPAPRVLANDevice, sdev),
 510     DEFINE_NIC_PROPERTIES(VIOsPAPRVLANDevice, nicconf),
 511     DEFINE_PROP_END_OF_LIST(),
 512 };
 513
 514 static const VMStateDescription vmstate_spapr_llan = {
 515     .name = "spapr_llan",
 516     .version_id = 1,
 517     .minimum_version_id = 1,
 518     .fields = (VMStateField[]) {
 519         VMSTATE_SPAPR_VIO(sdev, VIOsPAPRVLANDevice),
 520         /* LLAN state */
 521         VMSTATE_BOOL(isopen, VIOsPAPRVLANDevice),
 522         VMSTATE_UINTTL(buf_list, VIOsPAPRVLANDevice),
 523         VMSTATE_UINT32(add_buf_ptr, VIOsPAPRVLANDevice),
 524         VMSTATE_UINT32(use_buf_ptr, VIOsPAPRVLANDevice),
 525         VMSTATE_UINT32(rx_bufs, VIOsPAPRVLANDevice),
 526         VMSTATE_UINTTL(rxq_ptr, VIOsPAPRVLANDevice),
 527
 528         VMSTATE_END_OF_LIST()
 529     },
 530 };
 531
 532 static void spapr_vlan_class_init(ObjectClass *klass, void *data)
 533 {
 534     DeviceClass *dc = DEVICE_CLASS(klass);
 535     VIOsPAPRDeviceClass *k = VIO_SPAPR_DEVICE_CLASS(klass);
 536
 537     k->realize = spapr_vlan_realize;
 538     k->reset = spapr_vlan_reset;
 539     k->devnode = spapr_vlan_devnode;
 540     k->dt_name = "l-lan";
 541     k->dt_type = "network";
 542     k->dt_compatible = "IBM,l-lan";
 543     k->signal_mask = 0x1;
 544     set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
 545     dc->props = spapr_vlan_properties;
 546     k->rtce_window_size = 0x10000000;
 547     dc->vmsd = &vmstate_spapr_llan;
 548 }
 549
 550 static const TypeInfo spapr_vlan_info = {
 551     .name          = TYPE_VIO_SPAPR_VLAN_DEVICE,
 552     .parent        = TYPE_VIO_SPAPR_DEVICE,
 553     .instance_size = sizeof(VIOsPAPRVLANDevice),
 554     .class_init    = spapr_vlan_class_init,
 555     .instance_init = spapr_vlan_instance_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)