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 /**
 107  * Get buffer descriptor from the receive buffer list page that has been
 108  * supplied by the guest with the H_REGISTER_LOGICAL_LAN call
 109  */
 110 static vlan_bd_t spapr_vlan_get_rx_bd_from_page(VIOsPAPRVLANDevice *dev,
 111                                                 size_t size)
 112 {
 113     int buf_ptr = dev->use_buf_ptr;
 114     vlan_bd_t bd;
 115
 116     do {
 117         buf_ptr += 8;
 118         if (buf_ptr >= VLAN_RX_BDS_LEN + VLAN_RX_BDS_OFF) {
 119             buf_ptr = VLAN_RX_BDS_OFF;
 120         }
 121
 122         bd = vio_ldq(&dev->sdev, dev->buf_list + buf_ptr);
 123         DPRINTF("use_buf_ptr=%d bd=0x%016llx\n",
 124                 buf_ptr, (unsigned long long)bd);
 125     } while ((!(bd & VLAN_BD_VALID) || VLAN_BD_LEN(bd) < size + 8)
 126              && buf_ptr != dev->use_buf_ptr);
 127
 128     if (!(bd & VLAN_BD_VALID) || VLAN_BD_LEN(bd) < size + 8) {
 129         /* Failed to find a suitable buffer */
 130         return 0;
 131     }
 132
 133     /* Remove the buffer from the pool */
 134     dev->use_buf_ptr = buf_ptr;
 135     vio_stq(&dev->sdev, dev->buf_list + dev->use_buf_ptr, 0);
 136
 137     DPRINTF("Found buffer: ptr=%d rxbufs=%d\n", dev->use_buf_ptr, dev->rx_bufs);
 138
 139     return bd;
 140 }
 141
 142 static ssize_t spapr_vlan_receive(NetClientState *nc, const uint8_t *buf,
 143                                   size_t size)
 144 {
 145     VIOsPAPRVLANDevice *dev = qemu_get_nic_opaque(nc);
 146     VIOsPAPRDevice *sdev = VIO_SPAPR_DEVICE(dev);
 147     vlan_bd_t rxq_bd = vio_ldq(sdev, dev->buf_list + VLAN_RXQ_BD_OFF);
 148     vlan_bd_t bd;
 149     uint64_t handle;
 150     uint8_t control;
 151
 152     DPRINTF("spapr_vlan_receive() [%s] rx_bufs=%d\n", sdev->qdev.id,
 153             dev->rx_bufs);
 154
 155     if (!dev->isopen) {
 156         return -1;
 157     }
 158
 159     if (!dev->rx_bufs) {
 160         return -1;
 161     }
 162
 163     bd = spapr_vlan_get_rx_bd_from_page(dev, size);
 164     if (!bd) {
 165         return -1;
 166     }
 167
 168     dev->rx_bufs--;
 169
 170     /* Transfer the packet data */
 171     if (spapr_vio_dma_write(sdev, VLAN_BD_ADDR(bd) + 8, buf, size) < 0) {
 172         return -1;
 173     }
 174
 175     DPRINTF("spapr_vlan_receive: DMA write completed\n");
 176
 177     /* Update the receive queue */
 178     control = VLAN_RXQC_TOGGLE | VLAN_RXQC_VALID;
 179     if (rxq_bd & VLAN_BD_TOGGLE) {
 180         control ^= VLAN_RXQC_TOGGLE;
 181     }
 182
 183     handle = vio_ldq(sdev, VLAN_BD_ADDR(bd));
 184     vio_stq(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 8, handle);
 185     vio_stl(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 4, size);
 186     vio_sth(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 2, 8);
 187     vio_stb(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr, control);
 188
 189     DPRINTF("wrote rxq entry (ptr=0x%llx): 0x%016llx 0x%016llx\n",
 190             (unsigned long long)dev->rxq_ptr,
 191             (unsigned long long)vio_ldq(sdev, VLAN_BD_ADDR(rxq_bd) +
 192                                         dev->rxq_ptr),
 193             (unsigned long long)vio_ldq(sdev, VLAN_BD_ADDR(rxq_bd) +
 194                                         dev->rxq_ptr + 8));
 195
 196     dev->rxq_ptr += 16;
 197     if (dev->rxq_ptr >= VLAN_BD_LEN(rxq_bd)) {
 198         dev->rxq_ptr = 0;
 199         vio_stq(sdev, dev->buf_list + VLAN_RXQ_BD_OFF, rxq_bd ^ VLAN_BD_TOGGLE);
 200     }
 201
 202     if (sdev->signal_state & 1) {
 203         qemu_irq_pulse(spapr_vio_qirq(sdev));
 204     }
 205
 206     return size;
 207 }
 208
 209 static NetClientInfo net_spapr_vlan_info = {
 210     .type = NET_CLIENT_OPTIONS_KIND_NIC,
 211     .size = sizeof(NICState),
 212     .can_receive = spapr_vlan_can_receive,
 213     .receive = spapr_vlan_receive,
 214 };
 215
 216 static void spapr_vlan_reset(VIOsPAPRDevice *sdev)
 217 {
 218     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 219
 220     dev->buf_list = 0;
 221     dev->rx_bufs = 0;
 222     dev->isopen = 0;
 223 }
 224
 225 static void spapr_vlan_realize(VIOsPAPRDevice *sdev, Error **errp)
 226 {
 227     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 228
 229     qemu_macaddr_default_if_unset(&dev->nicconf.macaddr);
 230
 231     dev->nic = qemu_new_nic(&net_spapr_vlan_info, &dev->nicconf,
 232                             object_get_typename(OBJECT(sdev)), sdev->qdev.id, dev);
 233     qemu_format_nic_info_str(qemu_get_queue(dev->nic), dev->nicconf.macaddr.a);
 234 }
 235
 236 static void spapr_vlan_instance_init(Object *obj)
 237 {
 238     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(obj);
 239
 240     device_add_bootindex_property(obj, &dev->nicconf.bootindex,
 241                                   "bootindex", "",
 242                                   DEVICE(dev), NULL);
 243 }
 244
 245 void spapr_vlan_create(VIOsPAPRBus *bus, NICInfo *nd)
 246 {
 247     DeviceState *dev;
 248
 249     dev = qdev_create(&bus->bus, "spapr-vlan");
 250
 251     qdev_set_nic_properties(dev, nd);
 252
 253     qdev_init_nofail(dev);
 254 }
 255
 256 static int spapr_vlan_devnode(VIOsPAPRDevice *dev, void *fdt, int node_off)
 257 {
 258     VIOsPAPRVLANDevice *vdev = VIO_SPAPR_VLAN_DEVICE(dev);
 259     uint8_t padded_mac[8] = {0, 0};
 260     int ret;
 261
 262     /* Some old phyp versions give the mac address in an 8-byte
 263      * property.  The kernel driver has an insane workaround for this;
 264      * rather than doing the obvious thing and checking the property
 265      * length, it checks whether the first byte has 0b10 in the low
 266      * bits.  If a correct 6-byte property has a different first byte
 267      * the kernel will get the wrong mac address, overrunning its
 268      * buffer in the process (read only, thank goodness).
 269      *
 270      * Here we workaround the kernel workaround by always supplying an
 271      * 8-byte property, with the mac address in the last six bytes */
 272     memcpy(&padded_mac[2], &vdev->nicconf.macaddr, ETH_ALEN);
 273     ret = fdt_setprop(fdt, node_off, "local-mac-address",
 274                       padded_mac, sizeof(padded_mac));
 275     if (ret < 0) {
 276         return ret;
 277     }
 278
 279     ret = fdt_setprop_cell(fdt, node_off, "ibm,mac-address-filters", 0);
 280     if (ret < 0) {
 281         return ret;
 282     }
 283
 284     return 0;
 285 }
 286
 287 static int check_bd(VIOsPAPRVLANDevice *dev, vlan_bd_t bd,
 288                     target_ulong alignment)
 289 {
 290     if ((VLAN_BD_ADDR(bd) % alignment)
 291         || (VLAN_BD_LEN(bd) % alignment)) {
 292         return -1;
 293     }
 294
 295     if (!spapr_vio_dma_valid(&dev->sdev, VLAN_BD_ADDR(bd),
 296                              VLAN_BD_LEN(bd), DMA_DIRECTION_FROM_DEVICE)
 297         || !spapr_vio_dma_valid(&dev->sdev, VLAN_BD_ADDR(bd),
 298                                 VLAN_BD_LEN(bd), DMA_DIRECTION_TO_DEVICE)) {
 299         return -1;
 300     }
 301
 302     return 0;
 303 }
 304
 305 static target_ulong h_register_logical_lan(PowerPCCPU *cpu,
 306                                            sPAPRMachineState *spapr,
 307                                            target_ulong opcode,
 308                                            target_ulong *args)
 309 {
 310     target_ulong reg = args[0];
 311     target_ulong buf_list = args[1];
 312     target_ulong rec_queue = args[2];
 313     target_ulong filter_list = args[3];
 314     VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 315     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 316     vlan_bd_t filter_list_bd;
 317
 318     if (!dev) {
 319         return H_PARAMETER;
 320     }
 321
 322     if (dev->isopen) {
 323         hcall_dprintf("H_REGISTER_LOGICAL_LAN called twice without "
 324                       "H_FREE_LOGICAL_LAN\n");
 325         return H_RESOURCE;
 326     }
 327
 328     if (check_bd(dev, VLAN_VALID_BD(buf_list, SPAPR_TCE_PAGE_SIZE),
 329                  SPAPR_TCE_PAGE_SIZE) < 0) {
 330         hcall_dprintf("Bad buf_list 0x" TARGET_FMT_lx "\n", buf_list);
 331         return H_PARAMETER;
 332     }
 333
 334     filter_list_bd = VLAN_VALID_BD(filter_list, SPAPR_TCE_PAGE_SIZE);
 335     if (check_bd(dev, filter_list_bd, SPAPR_TCE_PAGE_SIZE) < 0) {
 336         hcall_dprintf("Bad filter_list 0x" TARGET_FMT_lx "\n", filter_list);
 337         return H_PARAMETER;
 338     }
 339
 340     if (!(rec_queue & VLAN_BD_VALID)
 341         || (check_bd(dev, rec_queue, VLAN_RQ_ALIGNMENT) < 0)) {
 342         hcall_dprintf("Bad receive queue\n");
 343         return H_PARAMETER;
 344     }
 345
 346     dev->buf_list = buf_list;
 347     sdev->signal_state = 0;
 348
 349     rec_queue &= ~VLAN_BD_TOGGLE;
 350
 351     /* Initialize the buffer list */
 352     vio_stq(sdev, buf_list, rec_queue);
 353     vio_stq(sdev, buf_list + 8, filter_list_bd);
 354     spapr_vio_dma_set(sdev, buf_list + VLAN_RX_BDS_OFF, 0,
 355                       SPAPR_TCE_PAGE_SIZE - VLAN_RX_BDS_OFF);
 356     dev->add_buf_ptr = VLAN_RX_BDS_OFF - 8;
 357     dev->use_buf_ptr = VLAN_RX_BDS_OFF - 8;
 358     dev->rx_bufs = 0;
 359     dev->rxq_ptr = 0;
 360
 361     /* Initialize the receive queue */
 362     spapr_vio_dma_set(sdev, VLAN_BD_ADDR(rec_queue), 0, VLAN_BD_LEN(rec_queue));
 363
 364     dev->isopen = 1;
 365     qemu_flush_queued_packets(qemu_get_queue(dev->nic));
 366
 367     return H_SUCCESS;
 368 }
 369
 370
 371 static target_ulong h_free_logical_lan(PowerPCCPU *cpu,
 372                                        sPAPRMachineState *spapr,
 373                                        target_ulong opcode, target_ulong *args)
 374 {
 375     target_ulong reg = args[0];
 376     VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 377     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 378
 379     if (!dev) {
 380         return H_PARAMETER;
 381     }
 382
 383     if (!dev->isopen) {
 384         hcall_dprintf("H_FREE_LOGICAL_LAN called without "
 385                       "H_REGISTER_LOGICAL_LAN\n");
 386         return H_RESOURCE;
 387     }
 388
 389     spapr_vlan_reset(sdev);
 390     return H_SUCCESS;
 391 }
 392
 393 static target_long spapr_vlan_add_rxbuf_to_page(VIOsPAPRVLANDevice *dev,
 394                                                 target_ulong buf)
 395 {
 396     vlan_bd_t bd;
 397
 398     if (dev->rx_bufs >= VLAN_MAX_BUFS) {
 399         return H_RESOURCE;
 400     }
 401
 402     do {
 403         dev->add_buf_ptr += 8;
 404         if (dev->add_buf_ptr >= VLAN_RX_BDS_LEN + VLAN_RX_BDS_OFF) {
 405             dev->add_buf_ptr = VLAN_RX_BDS_OFF;
 406         }
 407
 408         bd = vio_ldq(&dev->sdev, dev->buf_list + dev->add_buf_ptr);
 409     } while (bd & VLAN_BD_VALID);
 410
 411     vio_stq(&dev->sdev, dev->buf_list + dev->add_buf_ptr, buf);
 412
 413     DPRINTF("h_add_llan_buf():  Added buf  ptr=%d  rx_bufs=%d bd=0x%016llx\n",
 414             dev->add_buf_ptr, dev->rx_bufs, (unsigned long long)buf);
 415
 416     return 0;
 417 }
 418
 419 static target_ulong h_add_logical_lan_buffer(PowerPCCPU *cpu,
 420                                              sPAPRMachineState *spapr,
 421                                              target_ulong opcode,
 422                                              target_ulong *args)
 423 {
 424     target_ulong reg = args[0];
 425     target_ulong buf = args[1];
 426     VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 427     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 428     target_long ret;
 429
 430     DPRINTF("H_ADD_LOGICAL_LAN_BUFFER(0x" TARGET_FMT_lx
 431             ", 0x" TARGET_FMT_lx ")\n", reg, buf);
 432
 433     if (!sdev) {
 434         hcall_dprintf("Bad device\n");
 435         return H_PARAMETER;
 436     }
 437
 438     if ((check_bd(dev, buf, 4) < 0)
 439         || (VLAN_BD_LEN(buf) < 16)) {
 440         hcall_dprintf("Bad buffer enqueued\n");
 441         return H_PARAMETER;
 442     }
 443
 444     if (!dev->isopen) {
 445         return H_RESOURCE;
 446     }
 447
 448     ret = spapr_vlan_add_rxbuf_to_page(dev, buf);
 449     if (ret) {
 450         return ret;
 451     }
 452
 453     dev->rx_bufs++;
 454
 455     qemu_flush_queued_packets(qemu_get_queue(dev->nic));
 456
 457     return H_SUCCESS;
 458 }
 459
 460 static target_ulong h_send_logical_lan(PowerPCCPU *cpu,
 461                                        sPAPRMachineState *spapr,
 462                                        target_ulong opcode, target_ulong *args)
 463 {
 464     target_ulong reg = args[0];
 465     target_ulong *bufs = args + 1;
 466     target_ulong continue_token = args[7];
 467     VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 468     VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
 469     unsigned total_len;
 470     uint8_t *lbuf, *p;
 471     int i, nbufs;
 472     int ret;
 473
 474     DPRINTF("H_SEND_LOGICAL_LAN(0x" TARGET_FMT_lx ", <bufs>, 0x"
 475             TARGET_FMT_lx ")\n", reg, continue_token);
 476
 477     if (!sdev) {
 478         return H_PARAMETER;
 479     }
 480
 481     DPRINTF("rxbufs = %d\n", dev->rx_bufs);
 482
 483     if (!dev->isopen) {
 484         return H_DROPPED;
 485     }
 486
 487     if (continue_token) {
 488         return H_HARDWARE; /* FIXME actually handle this */
 489     }
 490
 491     total_len = 0;
 492     for (i = 0; i < 6; i++) {
 493         DPRINTF("   buf desc: 0x" TARGET_FMT_lx "\n", bufs[i]);
 494         if (!(bufs[i] & VLAN_BD_VALID)) {
 495             break;
 496         }
 497         total_len += VLAN_BD_LEN(bufs[i]);
 498     }
 499
 500     nbufs = i;
 501     DPRINTF("h_send_logical_lan() %d buffers, total length 0x%x\n",
 502             nbufs, total_len);
 503
 504     if (total_len == 0) {
 505         return H_SUCCESS;
 506     }
 507
 508     if (total_len > MAX_PACKET_SIZE) {
 509         /* Don't let the guest force too large an allocation */
 510         return H_RESOURCE;
 511     }
 512
 513     lbuf = alloca(total_len);
 514     p = lbuf;
 515     for (i = 0; i < nbufs; i++) {
 516         ret = spapr_vio_dma_read(sdev, VLAN_BD_ADDR(bufs[i]),
 517                                  p, VLAN_BD_LEN(bufs[i]));
 518         if (ret < 0) {
 519             return ret;
 520         }
 521
 522         p += VLAN_BD_LEN(bufs[i]);
 523     }
 524
 525     qemu_send_packet(qemu_get_queue(dev->nic), lbuf, total_len);
 526
 527     return H_SUCCESS;
 528 }
 529
 530 static target_ulong h_multicast_ctrl(PowerPCCPU *cpu, sPAPRMachineState *spapr,
 531                                      target_ulong opcode, target_ulong *args)
 532 {
 533     target_ulong reg = args[0];
 534     VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
 535
 536     if (!dev) {
 537         return H_PARAMETER;
 538     }
 539
 540     return H_SUCCESS;
 541 }
 542
 543 static Property spapr_vlan_properties[] = {
 544     DEFINE_SPAPR_PROPERTIES(VIOsPAPRVLANDevice, sdev),
 545     DEFINE_NIC_PROPERTIES(VIOsPAPRVLANDevice, nicconf),
 546     DEFINE_PROP_END_OF_LIST(),
 547 };
 548
 549 static const VMStateDescription vmstate_spapr_llan = {
 550     .name = "spapr_llan",
 551     .version_id = 1,
 552     .minimum_version_id = 1,
 553     .fields = (VMStateField[]) {
 554         VMSTATE_SPAPR_VIO(sdev, VIOsPAPRVLANDevice),
 555         /* LLAN state */
 556         VMSTATE_BOOL(isopen, VIOsPAPRVLANDevice),
 557         VMSTATE_UINTTL(buf_list, VIOsPAPRVLANDevice),
 558         VMSTATE_UINT32(add_buf_ptr, VIOsPAPRVLANDevice),
 559         VMSTATE_UINT32(use_buf_ptr, VIOsPAPRVLANDevice),
 560         VMSTATE_UINT32(rx_bufs, VIOsPAPRVLANDevice),
 561         VMSTATE_UINTTL(rxq_ptr, VIOsPAPRVLANDevice),
 562
 563         VMSTATE_END_OF_LIST()
 564     },
 565 };
 566
 567 static void spapr_vlan_class_init(ObjectClass *klass, void *data)
 568 {
 569     DeviceClass *dc = DEVICE_CLASS(klass);
 570     VIOsPAPRDeviceClass *k = VIO_SPAPR_DEVICE_CLASS(klass);
 571
 572     k->realize = spapr_vlan_realize;
 573     k->reset = spapr_vlan_reset;
 574     k->devnode = spapr_vlan_devnode;
 575     k->dt_name = "l-lan";
 576     k->dt_type = "network";
 577     k->dt_compatible = "IBM,l-lan";
 578     k->signal_mask = 0x1;
 579     set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
 580     dc->props = spapr_vlan_properties;
 581     k->rtce_window_size = 0x10000000;
 582     dc->vmsd = &vmstate_spapr_llan;
 583 }
 584
 585 static const TypeInfo spapr_vlan_info = {
 586     .name          = TYPE_VIO_SPAPR_VLAN_DEVICE,
 587     .parent        = TYPE_VIO_SPAPR_DEVICE,
 588     .instance_size = sizeof(VIOsPAPRVLANDevice),
 589     .class_init    = spapr_vlan_class_init,
 590     .instance_init = spapr_vlan_instance_init,
 591 };
 592
 593 static void spapr_vlan_register_types(void)
 594 {
 595     spapr_register_hypercall(H_REGISTER_LOGICAL_LAN, h_register_logical_lan);
 596     spapr_register_hypercall(H_FREE_LOGICAL_LAN, h_free_logical_lan);
 597     spapr_register_hypercall(H_SEND_LOGICAL_LAN, h_send_logical_lan);
 598     spapr_register_hypercall(H_ADD_LOGICAL_LAN_BUFFER,
 599                              h_add_logical_lan_buffer);
 600     spapr_register_hypercall(H_MULTICAST_CTRL, h_multicast_ctrl);
 601     type_register_static(&spapr_vlan_info);
 602 }
 603
 604 type_init(spapr_vlan_register_types)