xref: /openbmc/qemu/hw/net/spapr_llan.c (revision 0430891c)
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)
571