VirtualBox

source: vbox/trunk/src/VBox/Devices/Network/DevVirtioNet.cpp@ 34886

Last change on this file since 34886 was 34088, checked in by vboxsync, 14 years ago

virtio-net: workaround for guests excluding L4 header length in GSO structure.
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1/* $Id: DevVirtioNet.cpp 34088 2010-11-15 20:35:22Z vboxsync $ */
2/** @file
3 * DevVirtioNet - Virtio Network Device
4 */
5
6/*
7 * Copyright (C) 2009-2010 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 */
17
18
19#define LOG_GROUP LOG_GROUP_DEV_VIRTIO_NET
20#define VNET_GC_SUPPORT
21#define VNET_WITH_GSO
22#define VNET_WITH_MERGEABLE_RX_BUFS
23
24#include <VBox/pdmdev.h>
25#include <VBox/pdmnetifs.h>
26#include <iprt/asm.h>
27#include <iprt/net.h>
28#include <iprt/semaphore.h>
29#ifdef IN_RING3
30# include <iprt/mem.h>
31# include <iprt/uuid.h>
32#endif /* IN_RING3 */
33#include "../Builtins.h"
34#include "../VirtIO/Virtio.h"
35
36
37#ifndef VBOX_DEVICE_STRUCT_TESTCASE
38
39#define INSTANCE(pState) pState->VPCI.szInstance
40#define STATUS pState->config.uStatus
41
42#ifdef IN_RING3
43
44#define VNET_PCI_SUBSYSTEM_ID 1 + VIRTIO_NET_ID
45#define VNET_PCI_CLASS 0x0200
46#define VNET_N_QUEUES 3
47#define VNET_NAME_FMT "VNet%d"
48
49#if 0
50/* Virtio Block Device */
51#define VNET_PCI_SUBSYSTEM_ID 1 + VIRTIO_BLK_ID
52#define VNET_PCI_CLASS 0x0180
53#define VNET_N_QUEUES 2
54#define VNET_NAME_FMT "VBlk%d"
55#endif
56
57#endif /* IN_RING3 */
58
59/* Forward declarations ******************************************************/
60RT_C_DECLS_BEGIN
61PDMBOTHCBDECL(int) vnetIOPortIn (PPDMDEVINS pDevIns, void *pvUser, RTIOPORT port, uint32_t *pu32, unsigned cb);
62PDMBOTHCBDECL(int) vnetIOPortOut(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT port, uint32_t u32, unsigned cb);
63RT_C_DECLS_END
64
65#endif /* VBOX_DEVICE_STRUCT_TESTCASE */
66
67
68#define VNET_TX_DELAY 150 /* 150 microseconds */
69#define VNET_MAX_FRAME_SIZE 65536 // TODO: Is it the right limit?
70#define VNET_MAC_FILTER_LEN 32
71#define VNET_MAX_VID (1 << 12)
72
73/* Virtio net features */
74#define VNET_F_CSUM 0x00000001 /* Host handles pkts w/ partial csum */
75#define VNET_F_GUEST_CSUM 0x00000002 /* Guest handles pkts w/ partial csum */
76#define VNET_F_MAC 0x00000020 /* Host has given MAC address. */
77#define VNET_F_GSO 0x00000040 /* Host handles pkts w/ any GSO type */
78#define VNET_F_GUEST_TSO4 0x00000080 /* Guest can handle TSOv4 in. */
79#define VNET_F_GUEST_TSO6 0x00000100 /* Guest can handle TSOv6 in. */
80#define VNET_F_GUEST_ECN 0x00000200 /* Guest can handle TSO[6] w/ ECN in. */
81#define VNET_F_GUEST_UFO 0x00000400 /* Guest can handle UFO in. */
82#define VNET_F_HOST_TSO4 0x00000800 /* Host can handle TSOv4 in. */
83#define VNET_F_HOST_TSO6 0x00001000 /* Host can handle TSOv6 in. */
84#define VNET_F_HOST_ECN 0x00002000 /* Host can handle TSO[6] w/ ECN in. */
85#define VNET_F_HOST_UFO 0x00004000 /* Host can handle UFO in. */
86#define VNET_F_MRG_RXBUF 0x00008000 /* Host can merge receive buffers. */
87#define VNET_F_STATUS 0x00010000 /* virtio_net_config.status available */
88#define VNET_F_CTRL_VQ 0x00020000 /* Control channel available */
89#define VNET_F_CTRL_RX 0x00040000 /* Control channel RX mode support */
90#define VNET_F_CTRL_VLAN 0x00080000 /* Control channel VLAN filtering */
91
92#define VNET_S_LINK_UP 1
93
94
95#ifdef _MSC_VER
96struct VNetPCIConfig
97#else /* !_MSC_VER */
98struct __attribute__ ((__packed__)) VNetPCIConfig
99#endif /* !_MSC_VER */
100{
101 RTMAC mac;
102 uint16_t uStatus;
103};
104AssertCompileMemberOffset(struct VNetPCIConfig, uStatus, 6);
105
106/**
107 * Device state structure. Holds the current state of device.
108 *
109 * @extends VPCISTATE
110 * @implements PDMINETWORKDOWN
111 * @implements PDMINETWORKCONFIG
112 */
113struct VNetState_st
114{
115 /* VPCISTATE must be the first member! */
116 VPCISTATE VPCI;
117
118// PDMCRITSECT csRx; /**< Protects RX queue. */
119
120 PDMINETWORKDOWN INetworkDown;
121 PDMINETWORKCONFIG INetworkConfig;
122 R3PTRTYPE(PPDMIBASE) pDrvBase; /**< Attached network driver. */
123 R3PTRTYPE(PPDMINETWORKUP) pDrv; /**< Connector of attached network driver. */
124
125 R3PTRTYPE(PPDMQUEUE) pCanRxQueueR3; /**< Rx wakeup signaller - R3. */
126 R0PTRTYPE(PPDMQUEUE) pCanRxQueueR0; /**< Rx wakeup signaller - R0. */
127 RCPTRTYPE(PPDMQUEUE) pCanRxQueueRC; /**< Rx wakeup signaller - RC. */
128# if HC_ARCH_BITS == 64
129 uint32_t padding;
130# endif
131
132 /**< Link Up(/Restore) Timer. */
133 PTMTIMERR3 pLinkUpTimer;
134
135#ifdef VNET_TX_DELAY
136 /**< Transmit Delay Timer - R3. */
137 PTMTIMERR3 pTxTimerR3;
138 /**< Transmit Delay Timer - R0. */
139 PTMTIMERR0 pTxTimerR0;
140 /**< Transmit Delay Timer - GC. */
141 PTMTIMERRC pTxTimerRC;
142
143# if HC_ARCH_BITS == 64
144 uint32_t padding2;
145# endif
146
147 uint32_t u32i;
148 uint32_t u32AvgDiff;
149 uint32_t u32MinDiff;
150 uint32_t u32MaxDiff;
151 uint64_t u64NanoTS;
152#endif /* VNET_TX_DELAY */
153
154 /** Indicates transmission in progress -- only one thread is allowed. */
155 uint32_t uIsTransmitting;
156
157 /** PCI config area holding MAC address as well as TBD. */
158 struct VNetPCIConfig config;
159 /** MAC address obtained from the configuration. */
160 RTMAC macConfigured;
161 /** True if physical cable is attached in configuration. */
162 bool fCableConnected;
163
164 /** Number of packet being sent/received to show in debug log. */
165 uint32_t u32PktNo;
166
167 /** N/A: */
168 bool volatile fMaybeOutOfSpace;
169
170 /** Promiscuous mode -- RX filter accepts all packets. */
171 bool fPromiscuous;
172 /** AllMulti mode -- RX filter accepts all multicast packets. */
173 bool fAllMulti;
174 /** The number of actually used slots in aMacTable. */
175 uint32_t nMacFilterEntries;
176 /** Array of MAC addresses accepted by RX filter. */
177 RTMAC aMacFilter[VNET_MAC_FILTER_LEN];
178 /** Bit array of VLAN filter, one bit per VLAN ID. */
179 uint8_t aVlanFilter[VNET_MAX_VID / sizeof(uint8_t)];
180
181 R3PTRTYPE(PVQUEUE) pRxQueue;
182 R3PTRTYPE(PVQUEUE) pTxQueue;
183 R3PTRTYPE(PVQUEUE) pCtlQueue;
184 /* Receive-blocking-related fields ***************************************/
185
186 /** EMT: Gets signalled when more RX descriptors become available. */
187 RTSEMEVENT hEventMoreRxDescAvail;
188
189 /* Statistic fields ******************************************************/
190
191 STAMCOUNTER StatReceiveBytes;
192 STAMCOUNTER StatTransmitBytes;
193 STAMCOUNTER StatReceiveGSO;
194 STAMCOUNTER StatTransmitPackets;
195 STAMCOUNTER StatTransmitGSO;
196 STAMCOUNTER StatTransmitCSum;
197#if defined(VBOX_WITH_STATISTICS)
198 STAMPROFILE StatReceive;
199 STAMPROFILE StatReceiveStore;
200 STAMPROFILEADV StatTransmit;
201 STAMPROFILE StatTransmitSend;
202 STAMPROFILE StatRxOverflow;
203 STAMCOUNTER StatRxOverflowWakeup;
204#endif /* VBOX_WITH_STATISTICS */
205
206};
207typedef struct VNetState_st VNETSTATE;
208typedef VNETSTATE *PVNETSTATE;
209
210#ifndef VBOX_DEVICE_STRUCT_TESTCASE
211
212#define VNETHDR_F_NEEDS_CSUM 1 // Use u16CSumStart, u16CSumOffset
213
214#define VNETHDR_GSO_NONE 0 // Not a GSO frame
215#define VNETHDR_GSO_TCPV4 1 // GSO frame, IPv4 TCP (TSO)
216#define VNETHDR_GSO_UDP 3 // GSO frame, IPv4 UDP (UFO)
217#define VNETHDR_GSO_TCPV6 4 // GSO frame, IPv6 TCP
218#define VNETHDR_GSO_ECN 0x80 // TCP has ECN set
219
220struct VNetHdr
221{
222 uint8_t u8Flags;
223 uint8_t u8GSOType;
224 uint16_t u16HdrLen;
225 uint16_t u16GSOSize;
226 uint16_t u16CSumStart;
227 uint16_t u16CSumOffset;
228};
229typedef struct VNetHdr VNETHDR;
230typedef VNETHDR *PVNETHDR;
231AssertCompileSize(VNETHDR, 10);
232
233struct VNetHdrMrx
234{
235 VNETHDR Hdr;
236 uint16_t u16NumBufs;
237};
238typedef struct VNetHdrMrx VNETHDRMRX;
239typedef VNETHDRMRX *PVNETHDRMRX;
240AssertCompileSize(VNETHDRMRX, 12);
241
242AssertCompileMemberOffset(VNETSTATE, VPCI, 0);
243
244#define VNET_OK 0
245#define VNET_ERROR 1
246typedef uint8_t VNETCTLACK;
247
248#define VNET_CTRL_CLS_RX_MODE 0
249#define VNET_CTRL_CMD_RX_MODE_PROMISC 0
250#define VNET_CTRL_CMD_RX_MODE_ALLMULTI 1
251
252#define VNET_CTRL_CLS_MAC 1
253#define VNET_CTRL_CMD_MAC_TABLE_SET 0
254
255#define VNET_CTRL_CLS_VLAN 2
256#define VNET_CTRL_CMD_VLAN_ADD 0
257#define VNET_CTRL_CMD_VLAN_DEL 1
258
259
260struct VNetCtlHdr
261{
262 uint8_t u8Class;
263 uint8_t u8Command;
264};
265typedef struct VNetCtlHdr VNETCTLHDR;
266typedef VNETCTLHDR *PVNETCTLHDR;
267AssertCompileSize(VNETCTLHDR, 2);
268
269/* Returns true if large packets are written into several RX buffers. */
270DECLINLINE(bool) vnetMergeableRxBuffers(PVNETSTATE pState)
271{
272 return !!(pState->VPCI.uGuestFeatures & VNET_F_MRG_RXBUF);
273}
274
275DECLINLINE(int) vnetCsEnter(PVNETSTATE pState, int rcBusy)
276{
277 return vpciCsEnter(&pState->VPCI, rcBusy);
278}
279
280DECLINLINE(void) vnetCsLeave(PVNETSTATE pState)
281{
282 vpciCsLeave(&pState->VPCI);
283}
284
285DECLINLINE(int) vnetCsRxEnter(PVNETSTATE pState, int rcBusy)
286{
287 // STAM_PROFILE_START(&pState->CTXSUFF(StatCsRx), a);
288 // int rc = PDMCritSectEnter(&pState->csRx, rcBusy);
289 // STAM_PROFILE_STOP(&pState->CTXSUFF(StatCsRx), a);
290 // return rc;
291 return VINF_SUCCESS;
292}
293
294DECLINLINE(void) vnetCsRxLeave(PVNETSTATE pState)
295{
296 // PDMCritSectLeave(&pState->csRx);
297}
298
299/**
300 * Dump a packet to debug log.
301 *
302 * @param pState The device state structure.
303 * @param cpPacket The packet.
304 * @param cb The size of the packet.
305 * @param cszText A string denoting direction of packet transfer.
306 */
307DECLINLINE(void) vnetPacketDump(PVNETSTATE pState, const uint8_t *cpPacket, size_t cb, const char *cszText)
308{
309#ifdef DEBUG
310 Log(("%s %s packet #%d (%d bytes):\n",
311 INSTANCE(pState), cszText, ++pState->u32PktNo, cb));
312 Log3(("%.*Rhxd\n", cb, cpPacket));
313#endif
314}
315
316
317
318PDMBOTHCBDECL(uint32_t) vnetGetHostFeatures(void *pvState)
319{
320 /* We support:
321 * - Host-provided MAC address
322 * - Link status reporting in config space
323 * - Control queue
324 * - RX mode setting
325 * - MAC filter table
326 * - VLAN filter
327 */
328 return VNET_F_MAC
329 | VNET_F_STATUS
330 | VNET_F_CTRL_VQ
331 | VNET_F_CTRL_RX
332 | VNET_F_CTRL_VLAN
333#ifdef VNET_WITH_GSO
334 | VNET_F_CSUM
335 | VNET_F_HOST_TSO4
336 | VNET_F_HOST_TSO6
337 | VNET_F_HOST_UFO
338#endif
339#ifdef VNET_WITH_MERGEABLE_RX_BUFS
340 | VNET_F_MRG_RXBUF
341#endif
342 ;
343}
344
345PDMBOTHCBDECL(uint32_t) vnetGetHostMinimalFeatures(void *pvState)
346{
347 return VNET_F_MAC;
348}
349
350PDMBOTHCBDECL(void) vnetSetHostFeatures(void *pvState, uint32_t uFeatures)
351{
352 // TODO: Nothing to do here yet
353 VNETSTATE *pState = (VNETSTATE *)pvState;
354 LogFlow(("%s vnetSetHostFeatures: uFeatures=%x\n", INSTANCE(pState), uFeatures));
355}
356
357PDMBOTHCBDECL(int) vnetGetConfig(void *pvState, uint32_t port, uint32_t cb, void *data)
358{
359 VNETSTATE *pState = (VNETSTATE *)pvState;
360 if (port + cb > sizeof(struct VNetPCIConfig))
361 {
362 Log(("%s vnetGetConfig: Read beyond the config structure is attempted (port=%RTiop cb=%x).\n", INSTANCE(pState), port, cb));
363 return VERR_IOM_IOPORT_UNUSED;
364 }
365 memcpy(data, ((uint8_t*)&pState->config) + port, cb);
366 return VINF_SUCCESS;
367}
368
369PDMBOTHCBDECL(int) vnetSetConfig(void *pvState, uint32_t port, uint32_t cb, void *data)
370{
371 VNETSTATE *pState = (VNETSTATE *)pvState;
372 if (port + cb > sizeof(struct VNetPCIConfig))
373 {
374 Log(("%s vnetGetConfig: Write beyond the config structure is attempted (port=%RTiop cb=%x).\n", INSTANCE(pState), port, cb));
375 if (port < sizeof(struct VNetPCIConfig))
376 memcpy(((uint8_t*)&pState->config) + port, data,
377 sizeof(struct VNetPCIConfig) - port);
378 return VINF_SUCCESS;
379 }
380 memcpy(((uint8_t*)&pState->config) + port, data, cb);
381 return VINF_SUCCESS;
382}
383
384/**
385 * Hardware reset. Revert all registers to initial values.
386 *
387 * @param pState The device state structure.
388 */
389PDMBOTHCBDECL(int) vnetReset(void *pvState)
390{
391 VNETSTATE *pState = (VNETSTATE*)pvState;
392 Log(("%s Reset triggered\n", INSTANCE(pState)));
393
394 int rc = vnetCsRxEnter(pState, VERR_SEM_BUSY);
395 if (RT_UNLIKELY(rc != VINF_SUCCESS))
396 {
397 LogRel(("vnetReset failed to enter RX critical section!\n"));
398 return rc;
399 }
400 vpciReset(&pState->VPCI);
401 vnetCsRxLeave(pState);
402
403 // TODO: Implement reset
404 if (pState->fCableConnected)
405 STATUS = VNET_S_LINK_UP;
406 else
407 STATUS = 0;
408
409 /*
410 * By default we pass all packets up since the older guests cannot control
411 * virtio mode.
412 */
413 pState->fPromiscuous = true;
414 pState->fAllMulti = false;
415 pState->nMacFilterEntries = 0;
416 memset(pState->aMacFilter, 0, VNET_MAC_FILTER_LEN * sizeof(RTMAC));
417 memset(pState->aVlanFilter, 0, sizeof(pState->aVlanFilter));
418 pState->uIsTransmitting = 0;
419#ifndef IN_RING3
420 return VINF_IOM_HC_IOPORT_WRITE;
421#else
422 if (pState->pDrv)
423 pState->pDrv->pfnSetPromiscuousMode(pState->pDrv, true);
424 return VINF_SUCCESS;
425#endif
426}
427
428#ifdef IN_RING3
429
430/**
431 * Wakeup the RX thread.
432 */
433static void vnetWakeupReceive(PPDMDEVINS pDevIns)
434{
435 VNETSTATE *pState = PDMINS_2_DATA(pDevIns, VNETSTATE *);
436 if ( pState->fMaybeOutOfSpace
437 && pState->hEventMoreRxDescAvail != NIL_RTSEMEVENT)
438 {
439 STAM_COUNTER_INC(&pState->StatRxOverflowWakeup);
440 Log(("%s Waking up Out-of-RX-space semaphore\n", INSTANCE(pState)));
441 RTSemEventSignal(pState->hEventMoreRxDescAvail);
442 }
443}
444
445/**
446 * Link Up Timer handler.
447 *
448 * @param pDevIns Pointer to device instance structure.
449 * @param pTimer Pointer to the timer.
450 * @param pvUser NULL.
451 * @thread EMT
452 */
453static DECLCALLBACK(void) vnetLinkUpTimer(PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvUser)
454{
455 VNETSTATE *pState = (VNETSTATE *)pvUser;
456
457 int rc = vnetCsEnter(pState, VERR_SEM_BUSY);
458 if (RT_UNLIKELY(rc != VINF_SUCCESS))
459 return;
460 STATUS |= VNET_S_LINK_UP;
461 vpciRaiseInterrupt(&pState->VPCI, VERR_SEM_BUSY, VPCI_ISR_CONFIG);
462 vnetWakeupReceive(pDevIns);
463 vnetCsLeave(pState);
464}
465
466
467
468
469/**
470 * Handler for the wakeup signaller queue.
471 */
472static DECLCALLBACK(bool) vnetCanRxQueueConsumer(PPDMDEVINS pDevIns, PPDMQUEUEITEMCORE pItem)
473{
474 vnetWakeupReceive(pDevIns);
475 return true;
476}
477
478#endif /* IN_RING3 */
479
480/**
481 * This function is called when the driver becomes ready.
482 *
483 * @param pState The device state structure.
484 */
485PDMBOTHCBDECL(void) vnetReady(void *pvState)
486{
487 VNETSTATE *pState = (VNETSTATE*)pvState;
488 Log(("%s Driver became ready, waking up RX thread...\n", INSTANCE(pState)));
489#ifdef IN_RING3
490 vnetWakeupReceive(pState->VPCI.CTX_SUFF(pDevIns));
491#else
492 PPDMQUEUEITEMCORE pItem = PDMQueueAlloc(pState->CTX_SUFF(pCanRxQueue));
493 if (pItem)
494 PDMQueueInsert(pState->CTX_SUFF(pCanRxQueue), pItem);
495#endif
496}
497
498/**
499 * Port I/O Handler for IN operations.
500 *
501 * @returns VBox status code.
502 *
503 * @param pDevIns The device instance.
504 * @param pvUser Pointer to the device state structure.
505 * @param port Port number used for the IN operation.
506 * @param pu32 Where to store the result.
507 * @param cb Number of bytes read.
508 * @thread EMT
509 */
510PDMBOTHCBDECL(int) vnetIOPortIn(PPDMDEVINS pDevIns, void *pvUser,
511 RTIOPORT port, uint32_t *pu32, unsigned cb)
512{
513 return vpciIOPortIn(pDevIns, pvUser, port, pu32, cb,
514 vnetGetHostFeatures,
515 vnetGetConfig);
516}
517
518
519/**
520 * Port I/O Handler for OUT operations.
521 *
522 * @returns VBox status code.
523 *
524 * @param pDevIns The device instance.
525 * @param pvUser User argument.
526 * @param Port Port number used for the IN operation.
527 * @param u32 The value to output.
528 * @param cb The value size in bytes.
529 * @thread EMT
530 */
531PDMBOTHCBDECL(int) vnetIOPortOut(PPDMDEVINS pDevIns, void *pvUser,
532 RTIOPORT port, uint32_t u32, unsigned cb)
533{
534 return vpciIOPortOut(pDevIns, pvUser, port, u32, cb,
535 vnetGetHostMinimalFeatures,
536 vnetGetHostFeatures,
537 vnetSetHostFeatures,
538 vnetReset,
539 vnetReady,
540 vnetSetConfig);
541}
542
543
544#ifdef IN_RING3
545
546/**
547 * Check if the device can receive data now.
548 * This must be called before the pfnRecieve() method is called.
549 *
550 * @remarks As a side effect this function enables queue notification
551 * if it cannot receive because the queue is empty.
552 * It disables notification if it can receive.
553 *
554 * @returns VERR_NET_NO_BUFFER_SPACE if it cannot.
555 * @param pInterface Pointer to the interface structure containing the called function pointer.
556 * @thread RX
557 */
558static int vnetCanReceive(VNETSTATE *pState)
559{
560 int rc = vnetCsRxEnter(pState, VERR_SEM_BUSY);
561 AssertRCReturn(rc, rc);
562
563 LogFlow(("%s vnetCanReceive\n", INSTANCE(pState)));
564 if (!(pState->VPCI.uStatus & VPCI_STATUS_DRV_OK))
565 rc = VERR_NET_NO_BUFFER_SPACE;
566 else if (!vqueueIsReady(&pState->VPCI, pState->pRxQueue))
567 rc = VERR_NET_NO_BUFFER_SPACE;
568 else if (vqueueIsEmpty(&pState->VPCI, pState->pRxQueue))
569 {
570 vringSetNotification(&pState->VPCI, &pState->pRxQueue->VRing, true);
571 rc = VERR_NET_NO_BUFFER_SPACE;
572 }
573 else
574 {
575 vringSetNotification(&pState->VPCI, &pState->pRxQueue->VRing, false);
576 rc = VINF_SUCCESS;
577 }
578
579 LogFlow(("%s vnetCanReceive -> %Rrc\n", INSTANCE(pState), rc));
580 vnetCsRxLeave(pState);
581 return rc;
582}
583
584/**
585 * @interface_method_impl{PDMINETWORKDOWN,pfnWaitReceiveAvail}
586 */
587static DECLCALLBACK(int) vnetNetworkDown_WaitReceiveAvail(PPDMINETWORKDOWN pInterface, RTMSINTERVAL cMillies)
588{
589 VNETSTATE *pState = RT_FROM_MEMBER(pInterface, VNETSTATE, INetworkDown);
590 LogFlow(("%s vnetNetworkDown_WaitReceiveAvail(cMillies=%u)\n", INSTANCE(pState), cMillies));
591 int rc = vnetCanReceive(pState);
592
593 if (RT_SUCCESS(rc))
594 return VINF_SUCCESS;
595 if (RT_UNLIKELY(cMillies == 0))
596 return VERR_NET_NO_BUFFER_SPACE;
597
598 rc = VERR_INTERRUPTED;
599 ASMAtomicXchgBool(&pState->fMaybeOutOfSpace, true);
600 STAM_PROFILE_START(&pState->StatRxOverflow, a);
601
602 VMSTATE enmVMState;
603 while (RT_LIKELY( (enmVMState = PDMDevHlpVMState(pState->VPCI.CTX_SUFF(pDevIns))) == VMSTATE_RUNNING
604 || enmVMState == VMSTATE_RUNNING_LS))
605 {
606 int rc2 = vnetCanReceive(pState);
607 if (RT_SUCCESS(rc2))
608 {
609 rc = VINF_SUCCESS;
610 break;
611 }
612 Log(("%s vnetNetworkDown_WaitReceiveAvail: waiting cMillies=%u...\n",
613 INSTANCE(pState), cMillies));
614 RTSemEventWait(pState->hEventMoreRxDescAvail, cMillies);
615 }
616 STAM_PROFILE_STOP(&pState->StatRxOverflow, a);
617 ASMAtomicXchgBool(&pState->fMaybeOutOfSpace, false);
618
619 LogFlow(("%s vnetNetworkDown_WaitReceiveAvail -> %d\n", INSTANCE(pState), rc));
620 return rc;
621}
622
623
624/**
625 * @interface_method_impl{PDMIBASE,pfnQueryInterface}
626 */
627static DECLCALLBACK(void *) vnetQueryInterface(struct PDMIBASE *pInterface, const char *pszIID)
628{
629 VNETSTATE *pThis = RT_FROM_MEMBER(pInterface, VNETSTATE, VPCI.IBase);
630 Assert(&pThis->VPCI.IBase == pInterface);
631
632 PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKDOWN, &pThis->INetworkDown);
633 PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKCONFIG, &pThis->INetworkConfig);
634 return vpciQueryInterface(pInterface, pszIID);
635}
636
637/**
638 * Returns true if it is a broadcast packet.
639 *
640 * @returns true if destination address indicates broadcast.
641 * @param pvBuf The ethernet packet.
642 */
643DECLINLINE(bool) vnetIsBroadcast(const void *pvBuf)
644{
645 static const uint8_t s_abBcastAddr[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
646 return memcmp(pvBuf, s_abBcastAddr, sizeof(s_abBcastAddr)) == 0;
647}
648
649/**
650 * Returns true if it is a multicast packet.
651 *
652 * @remarks returns true for broadcast packets as well.
653 * @returns true if destination address indicates multicast.
654 * @param pvBuf The ethernet packet.
655 */
656DECLINLINE(bool) vnetIsMulticast(const void *pvBuf)
657{
658 return (*(char*)pvBuf) & 1;
659}
660
661/**
662 * Determines if the packet is to be delivered to upper layer.
663 *
664 * @returns true if packet is intended for this node.
665 * @param pState Pointer to the state structure.
666 * @param pvBuf The ethernet packet.
667 * @param cb Number of bytes available in the packet.
668 */
669static bool vnetAddressFilter(PVNETSTATE pState, const void *pvBuf, size_t cb)
670{
671 if (pState->fPromiscuous)
672 return true;
673
674 /* Ignore everything outside of our VLANs */
675 uint16_t *u16Ptr = (uint16_t*)pvBuf;
676 /* Compare TPID with VLAN Ether Type */
677 if ( u16Ptr[6] == RT_H2BE_U16(0x8100)
678 && !ASMBitTest(pState->aVlanFilter, RT_BE2H_U16(u16Ptr[7]) & 0xFFF))
679 {
680 Log4(("%s vnetAddressFilter: not our VLAN, returning false\n", INSTANCE(pState)));
681 return false;
682 }
683
684 if (vnetIsBroadcast(pvBuf))
685 return true;
686
687 if (pState->fAllMulti && vnetIsMulticast(pvBuf))
688 return true;
689
690 if (!memcmp(pState->config.mac.au8, pvBuf, sizeof(RTMAC)))
691 return true;
692 Log4(("%s vnetAddressFilter: %RTmac (conf) != %RTmac (dest)\n",
693 INSTANCE(pState), pState->config.mac.au8, pvBuf));
694
695 for (unsigned i = 0; i < pState->nMacFilterEntries; i++)
696 if (!memcmp(&pState->aMacFilter[i], pvBuf, sizeof(RTMAC)))
697 return true;
698
699 Log2(("%s vnetAddressFilter: failed all tests, returning false, packet dump follows:\n", INSTANCE(pState)));
700 vnetPacketDump(pState, (const uint8_t*)pvBuf, cb, "<-- Incoming");
701
702 return false;
703}
704
705/**
706 * Pad and store received packet.
707 *
708 * @remarks Make sure that the packet appears to upper layer as one coming
709 * from real Ethernet: pad it and insert FCS.
710 *
711 * @returns VBox status code.
712 * @param pState The device state structure.
713 * @param pvBuf The available data.
714 * @param cb Number of bytes available in the buffer.
715 * @thread RX
716 */
717static int vnetHandleRxPacket(PVNETSTATE pState, const void *pvBuf, size_t cb,
718 PCPDMNETWORKGSO pGso)
719{
720 VNETHDRMRX Hdr;
721 PVNETHDRMRX pHdr;
722 unsigned uHdrLen;
723 RTGCPHYS addrHdrMrx = 0;
724
725 if (pGso)
726 {
727 Log2(("%s vnetHandleRxPacket: gso type=%x cbHdr=%u mss=%u"
728 " off1=0x%x off2=0x%x\n", INSTANCE(pState), pGso->u8Type,
729 pGso->cbHdrs, pGso->cbMaxSeg, pGso->offHdr1, pGso->offHdr2));
730 Hdr.Hdr.u8Flags = VNETHDR_F_NEEDS_CSUM;
731 switch (pGso->u8Type)
732 {
733 case PDMNETWORKGSOTYPE_IPV4_TCP:
734 Hdr.Hdr.u8GSOType = VNETHDR_GSO_TCPV4;
735 Hdr.Hdr.u16CSumOffset = RT_OFFSETOF(RTNETTCP, th_sum);
736 break;
737 case PDMNETWORKGSOTYPE_IPV6_TCP:
738 Hdr.Hdr.u8GSOType = VNETHDR_GSO_TCPV6;
739 Hdr.Hdr.u16CSumOffset = RT_OFFSETOF(RTNETTCP, th_sum);
740 break;
741 case PDMNETWORKGSOTYPE_IPV4_UDP:
742 Hdr.Hdr.u8GSOType = VNETHDR_GSO_UDP;
743 Hdr.Hdr.u16CSumOffset = RT_OFFSETOF(RTNETUDP, uh_sum);
744 break;
745 default:
746 return VERR_INVALID_PARAMETER;
747 }
748 Hdr.Hdr.u16HdrLen = pGso->cbHdrs;
749 Hdr.Hdr.u16GSOSize = pGso->cbMaxSeg;
750 Hdr.Hdr.u16CSumStart = pGso->offHdr2;
751 STAM_REL_COUNTER_INC(&pState->StatReceiveGSO);
752 }
753 else
754 {
755 Hdr.Hdr.u8Flags = 0;
756 Hdr.Hdr.u8GSOType = VNETHDR_GSO_NONE;
757 }
758
759 if (vnetMergeableRxBuffers(pState))
760 uHdrLen = sizeof(VNETHDRMRX);
761 else
762 uHdrLen = sizeof(VNETHDR);
763
764 //vnetPacketDump(pState, (const uint8_t*)pvBuf, cb, "<-- Incoming");
765
766 unsigned int uOffset = 0;
767 unsigned int nElem;
768 for (nElem = 0; uOffset < cb; nElem++)
769 {
770 VQUEUEELEM elem;
771 unsigned int nSeg = 0, uElemSize = 0, cbReserved = 0;
772
773 if (!vqueueGet(&pState->VPCI, pState->pRxQueue, &elem))
774 {
775 /*
776 * @todo: It is possible to run out of RX buffers if only a few
777 * were added and we received a big packet.
778 */
779 Log(("%s vnetHandleRxPacket: Suddenly there is no space in receive queue!\n", INSTANCE(pState)));
780 return VERR_INTERNAL_ERROR;
781 }
782
783 if (elem.nIn < 1)
784 {
785 Log(("%s vnetHandleRxPacket: No writable descriptors in receive queue!\n", INSTANCE(pState)));
786 return VERR_INTERNAL_ERROR;
787 }
788
789 if (nElem == 0)
790 {
791 if (vnetMergeableRxBuffers(pState))
792 {
793 addrHdrMrx = elem.aSegsIn[nSeg].addr;
794 cbReserved = uHdrLen;
795 }
796 else
797 {
798 /* The very first segment of the very first element gets the header. */
799 if (elem.aSegsIn[nSeg].cb != sizeof(VNETHDR))
800 {
801 Log(("%s vnetHandleRxPacket: The first descriptor does match the header size!\n", INSTANCE(pState)));
802 return VERR_INTERNAL_ERROR;
803 }
804 elem.aSegsIn[nSeg++].pv = &Hdr;
805 }
806 uElemSize += uHdrLen;
807 }
808 while (nSeg < elem.nIn && uOffset < cb)
809 {
810 unsigned int uSize = (unsigned int)RT_MIN(elem.aSegsIn[nSeg].cb - (nSeg?0:cbReserved),
811 cb - uOffset);
812 elem.aSegsIn[nSeg++].pv = (uint8_t*)pvBuf + uOffset;
813 uOffset += uSize;
814 uElemSize += uSize;
815 }
816 STAM_PROFILE_START(&pState->StatReceiveStore, a);
817 vqueuePut(&pState->VPCI, pState->pRxQueue, &elem, uElemSize, cbReserved);
818 STAM_PROFILE_STOP(&pState->StatReceiveStore, a);
819 if (!vnetMergeableRxBuffers(pState))
820 break;
821 cbReserved = 0;
822 }
823 if (vnetMergeableRxBuffers(pState))
824 {
825 Hdr.u16NumBufs = nElem;
826 int rc = PDMDevHlpPhysWrite(pState->VPCI.CTX_SUFF(pDevIns), addrHdrMrx,
827 &Hdr, sizeof(Hdr));
828 if (RT_FAILURE(rc))
829 {
830 Log(("%s vnetHandleRxPacket: Failed to write merged RX buf header: %Rrc\n",
831 INSTANCE(pState), rc));
832 return rc;
833 }
834 }
835 vqueueSync(&pState->VPCI, pState->pRxQueue);
836 if (uOffset < cb)
837 {
838 Log(("%s vnetHandleRxPacket: Packet did not fit into RX queue (packet size=%u)!\n",
839 INSTANCE(pState), cb));
840 return VERR_TOO_MUCH_DATA;
841 }
842
843 return VINF_SUCCESS;
844}
845
846/**
847 * @interface_method_impl{PDMINETWORKDOWN,pfnReceiveGso}
848 */
849static DECLCALLBACK(int) vnetNetworkDown_ReceiveGso(PPDMINETWORKDOWN pInterface,
850 const void *pvBuf, size_t cb,
851 PCPDMNETWORKGSO pGso)
852{
853 VNETSTATE *pState = RT_FROM_MEMBER(pInterface, VNETSTATE, INetworkDown);
854
855 Log2(("%s vnetNetworkDown_ReceiveGso: pvBuf=%p cb=%u pGso=%p\n",
856 INSTANCE(pState), pvBuf, cb, pGso));
857 int rc = vnetCanReceive(pState);
858 if (RT_FAILURE(rc))
859 return rc;
860
861 /* Drop packets if VM is not running or cable is disconnected. */
862 VMSTATE enmVMState = PDMDevHlpVMState(pState->VPCI.CTX_SUFF(pDevIns));
863 if (( enmVMState != VMSTATE_RUNNING
864 && enmVMState != VMSTATE_RUNNING_LS)
865 || !(STATUS & VNET_S_LINK_UP))
866 return VINF_SUCCESS;
867
868 STAM_PROFILE_START(&pState->StatReceive, a);
869 vpciSetReadLed(&pState->VPCI, true);
870 if (vnetAddressFilter(pState, pvBuf, cb))
871 {
872 rc = vnetCsRxEnter(pState, VERR_SEM_BUSY);
873 if (RT_SUCCESS(rc))
874 {
875 rc = vnetHandleRxPacket(pState, pvBuf, cb, pGso);
876 STAM_REL_COUNTER_ADD(&pState->StatReceiveBytes, cb);
877 vnetCsRxLeave(pState);
878 }
879 }
880 vpciSetReadLed(&pState->VPCI, false);
881 STAM_PROFILE_STOP(&pState->StatReceive, a);
882 return rc;
883}
884
885/**
886 * @interface_method_impl{PDMINETWORKDOWN,pfnReceive}
887 */
888static DECLCALLBACK(int) vnetNetworkDown_Receive(PPDMINETWORKDOWN pInterface, const void *pvBuf, size_t cb)
889{
890 return vnetNetworkDown_ReceiveGso(pInterface, pvBuf, cb, NULL);
891}
892
893/**
894 * Gets the current Media Access Control (MAC) address.
895 *
896 * @returns VBox status code.
897 * @param pInterface Pointer to the interface structure containing the called function pointer.
898 * @param pMac Where to store the MAC address.
899 * @thread EMT
900 */
901static DECLCALLBACK(int) vnetGetMac(PPDMINETWORKCONFIG pInterface, PRTMAC pMac)
902{
903 VNETSTATE *pState = RT_FROM_MEMBER(pInterface, VNETSTATE, INetworkConfig);
904 memcpy(pMac, pState->config.mac.au8, sizeof(RTMAC));
905 return VINF_SUCCESS;
906}
907
908/**
909 * Gets the new link state.
910 *
911 * @returns The current link state.
912 * @param pInterface Pointer to the interface structure containing the called function pointer.
913 * @thread EMT
914 */
915static DECLCALLBACK(PDMNETWORKLINKSTATE) vnetGetLinkState(PPDMINETWORKCONFIG pInterface)
916{
917 VNETSTATE *pState = RT_FROM_MEMBER(pInterface, VNETSTATE, INetworkConfig);
918 if (STATUS & VNET_S_LINK_UP)
919 return PDMNETWORKLINKSTATE_UP;
920 return PDMNETWORKLINKSTATE_DOWN;
921}
922
923
924/**
925 * Sets the new link state.
926 *
927 * @returns VBox status code.
928 * @param pInterface Pointer to the interface structure containing the called function pointer.
929 * @param enmState The new link state
930 */
931static DECLCALLBACK(int) vnetSetLinkState(PPDMINETWORKCONFIG pInterface, PDMNETWORKLINKSTATE enmState)
932{
933 VNETSTATE *pState = RT_FROM_MEMBER(pInterface, VNETSTATE, INetworkConfig);
934 bool fOldUp = !!(STATUS & VNET_S_LINK_UP);
935 bool fNewUp = enmState == PDMNETWORKLINKSTATE_UP;
936
937 if (fNewUp != fOldUp)
938 {
939 if (fNewUp)
940 {
941 Log(("%s Link is up\n", INSTANCE(pState)));
942 STATUS |= VNET_S_LINK_UP;
943 vpciRaiseInterrupt(&pState->VPCI, VERR_SEM_BUSY, VPCI_ISR_CONFIG);
944 }
945 else
946 {
947 Log(("%s Link is down\n", INSTANCE(pState)));
948 STATUS &= ~VNET_S_LINK_UP;
949 vpciRaiseInterrupt(&pState->VPCI, VERR_SEM_BUSY, VPCI_ISR_CONFIG);
950 }
951 if (pState->pDrv)
952 pState->pDrv->pfnNotifyLinkChanged(pState->pDrv, enmState);
953 }
954 return VINF_SUCCESS;
955}
956
957static DECLCALLBACK(void) vnetQueueReceive(void *pvState, PVQUEUE pQueue)
958{
959 VNETSTATE *pState = (VNETSTATE*)pvState;
960 Log(("%s Receive buffers has been added, waking up receive thread.\n", INSTANCE(pState)));
961 vnetWakeupReceive(pState->VPCI.CTX_SUFF(pDevIns));
962}
963
964/**
965 * Sets up the GSO context according to the Virtio header.
966 *
967 * @param pGso The GSO context to setup.
968 * @param pCtx The context descriptor.
969 */
970DECLINLINE(PPDMNETWORKGSO) vnetSetupGsoCtx(PPDMNETWORKGSO pGso, VNETHDR const *pHdr)
971{
972 pGso->u8Type = PDMNETWORKGSOTYPE_INVALID;
973
974 if (pHdr->u8GSOType & VNETHDR_GSO_ECN)
975 {
976 AssertMsgFailed(("Unsupported flag in virtio header: ECN\n"));
977 return NULL;
978 }
979 switch (pHdr->u8GSOType & ~VNETHDR_GSO_ECN)
980 {
981 case VNETHDR_GSO_TCPV4:
982 pGso->u8Type = PDMNETWORKGSOTYPE_IPV4_TCP;
983 break;
984 case VNETHDR_GSO_TCPV6:
985 pGso->u8Type = PDMNETWORKGSOTYPE_IPV6_TCP;
986 break;
987 case VNETHDR_GSO_UDP:
988 pGso->u8Type = PDMNETWORKGSOTYPE_IPV4_UDP;
989 break;
990 default:
991 return NULL;
992 }
993 if (pHdr->u8Flags & VNETHDR_F_NEEDS_CSUM)
994 pGso->offHdr2 = pHdr->u16CSumStart;
995 else
996 {
997 AssertMsgFailed(("GSO without checksum offloading!\n"));
998 return NULL;
999 }
1000 pGso->offHdr1 = sizeof(RTNETETHERHDR);
1001 pGso->cbHdrs = pHdr->u16HdrLen;
1002 pGso->cbMaxSeg = pHdr->u16GSOSize;
1003 return pGso;
1004}
1005
1006DECLINLINE(uint16_t) vnetCSum16(const void *pvBuf, size_t cb)
1007{
1008 uint32_t csum = 0;
1009 uint16_t *pu16 = (uint16_t *)pvBuf;
1010
1011 while (cb > 1)
1012 {
1013 csum += *pu16++;
1014 cb -= 2;
1015 }
1016 if (cb)
1017 csum += *(uint8_t*)pu16;
1018 while (csum >> 16)
1019 csum = (csum >> 16) + (csum & 0xFFFF);
1020 return ~csum;
1021}
1022
1023DECLINLINE(void) vnetCompleteChecksum(uint8_t *pBuf, unsigned cbSize, uint16_t uStart, uint16_t uOffset)
1024{
1025 *(uint16_t*)(pBuf + uStart + uOffset) = vnetCSum16(pBuf + uStart, cbSize - uStart);
1026}
1027
1028static void vnetTransmitPendingPackets(PVNETSTATE pState, PVQUEUE pQueue, bool fOnWorkerThread)
1029{
1030 /*
1031 * Only one thread is allowed to transmit at a time, others should skip
1032 * transmission as the packets will be picked up by the transmitting
1033 * thread.
1034 */
1035 if (!ASMAtomicCmpXchgU32(&pState->uIsTransmitting, 1, 0))
1036 return;
1037
1038 if ((pState->VPCI.uStatus & VPCI_STATUS_DRV_OK) == 0)
1039 {
1040 Log(("%s Ignoring transmit requests from non-existent driver (status=0x%x).\n",
1041 INSTANCE(pState), pState->VPCI.uStatus));
1042 return;
1043 }
1044
1045 PPDMINETWORKUP pDrv = pState->pDrv;
1046 if (pDrv)
1047 {
1048 int rc = pDrv->pfnBeginXmit(pDrv, fOnWorkerThread);
1049 Assert(rc == VINF_SUCCESS || rc == VERR_TRY_AGAIN);
1050 if (rc == VERR_TRY_AGAIN)
1051 {
1052 ASMAtomicWriteU32(&pState->uIsTransmitting, 0);
1053 return;
1054 }
1055 }
1056
1057 unsigned int uHdrLen;
1058 if (vnetMergeableRxBuffers(pState))
1059 uHdrLen = sizeof(VNETHDRMRX);
1060 else
1061 uHdrLen = sizeof(VNETHDR);
1062
1063 Log3(("%s vnetTransmitPendingPackets: About to transmit %d pending packets\n", INSTANCE(pState),
1064 vringReadAvailIndex(&pState->VPCI, &pState->pTxQueue->VRing) - pState->pTxQueue->uNextAvailIndex));
1065
1066 vpciSetWriteLed(&pState->VPCI, true);
1067
1068 VQUEUEELEM elem;
1069 while (vqueueGet(&pState->VPCI, pQueue, &elem))
1070 {
1071 unsigned int uOffset = 0;
1072 if (elem.nOut < 2 || elem.aSegsOut[0].cb != uHdrLen)
1073 {
1074 Log(("%s vnetQueueTransmit: The first segment is not the header! (%u < 2 || %u != %u).\n",
1075 INSTANCE(pState), elem.nOut, elem.aSegsOut[0].cb, uHdrLen));
1076 break; /* For now we simply ignore the header, but it must be there anyway! */
1077 }
1078 else
1079 {
1080 unsigned int uSize = 0;
1081 STAM_PROFILE_ADV_START(&pState->StatTransmit, a);
1082 /* Compute total frame size. */
1083 for (unsigned int i = 1; i < elem.nOut; i++)
1084 uSize += elem.aSegsOut[i].cb;
1085 Assert(uSize <= VNET_MAX_FRAME_SIZE);
1086 if (pState->pDrv)
1087 {
1088 VNETHDR Hdr;
1089 PDMNETWORKGSO Gso, *pGso;
1090
1091 PDMDevHlpPhysRead(pState->VPCI.CTX_SUFF(pDevIns), elem.aSegsOut[0].addr,
1092 &Hdr, sizeof(Hdr));
1093
1094 STAM_REL_COUNTER_INC(&pState->StatTransmitPackets);
1095
1096 STAM_PROFILE_START(&pState->StatTransmitSend, a);
1097
1098 pGso = vnetSetupGsoCtx(&Gso, &Hdr);
1099 /** @todo Optimize away the extra copying! (lazy bird) */
1100 PPDMSCATTERGATHER pSgBuf;
1101 int rc = pState->pDrv->pfnAllocBuf(pState->pDrv, uSize, pGso, &pSgBuf);
1102 if (RT_SUCCESS(rc))
1103 {
1104 Assert(pSgBuf->cSegs == 1);
1105 /* Assemble a complete frame. */
1106 for (unsigned int i = 1; i < elem.nOut; i++)
1107 {
1108 PDMDevHlpPhysRead(pState->VPCI.CTX_SUFF(pDevIns), elem.aSegsOut[i].addr,
1109 ((uint8_t*)pSgBuf->aSegs[0].pvSeg) + uOffset,
1110 elem.aSegsOut[i].cb);
1111 uOffset += elem.aSegsOut[i].cb;
1112 }
1113 pSgBuf->cbUsed = uSize;
1114 //vnetPacketDump(pState, (uint8_t*)pSgBuf->aSegs[0].pvSeg, uSize, "--> Outgoing");
1115 if (pGso)
1116 {
1117 /* Some guests (RHEL) may report HdrLen excluding transport layer header! */
1118 if (pGso->cbHdrs < Hdr.u16CSumStart + Hdr.u16CSumOffset + 2)
1119 {
1120 Log4(("%s vnetTransmitPendingPackets: HdrLen before adjustment %d.\n", pGso->cbHdrs));
1121 switch (pGso->u8Type)
1122 {
1123 case PDMNETWORKGSOTYPE_IPV4_TCP:
1124 case PDMNETWORKGSOTYPE_IPV6_TCP:
1125 pGso->cbHdrs = Hdr.u16CSumStart +
1126 ((PRTNETTCP)(((uint8_t*)pSgBuf->aSegs[0].pvSeg) + Hdr.u16CSumStart))->th_off * 4;
1127 break;
1128 case PDMNETWORKGSOTYPE_IPV4_UDP:
1129 pGso->cbHdrs = Hdr.u16CSumStart + sizeof(RTNETUDP);
1130 break;
1131 }
1132 /* Update GSO structure embedded into the frame */
1133 ((PPDMNETWORKGSO)pSgBuf->pvUser)->cbHdrs = pGso->cbHdrs;
1134 Log4(("%s vnetTransmitPendingPackets: adjusted HdrLen to %d.\n",
1135 INSTANCE(pState), pGso->cbHdrs));
1136 }
1137 Log2(("%s vnetTransmitPendingPackets: gso type=%x cbHdr=%u mss=%u"
1138 " off1=0x%x off2=0x%x\n", INSTANCE(pState), pGso->u8Type,
1139 pGso->cbHdrs, pGso->cbMaxSeg, pGso->offHdr1, pGso->offHdr2));
1140 STAM_REL_COUNTER_INC(&pState->StatTransmitGSO);
1141 }
1142 else if (Hdr.u8Flags & VNETHDR_F_NEEDS_CSUM)
1143 {
1144 STAM_REL_COUNTER_INC(&pState->StatTransmitCSum);
1145 /*
1146 * This is not GSO frame but checksum offloading is requested.
1147 */
1148 vnetCompleteChecksum((uint8_t*)pSgBuf->aSegs[0].pvSeg, uSize,
1149 Hdr.u16CSumStart, Hdr.u16CSumOffset);
1150 }
1151
1152 rc = pState->pDrv->pfnSendBuf(pState->pDrv, pSgBuf, false);
1153 }
1154 else
1155 LogRel(("virtio-net: failed to allocate SG buffer: size=%u rc=%Rrc\n", uSize, rc));
1156
1157 STAM_PROFILE_STOP(&pState->StatTransmitSend, a);
1158 STAM_REL_COUNTER_ADD(&pState->StatTransmitBytes, uOffset);
1159 }
1160 }
1161 vqueuePut(&pState->VPCI, pQueue, &elem, sizeof(VNETHDR) + uOffset);
1162 vqueueSync(&pState->VPCI, pQueue);
1163 STAM_PROFILE_ADV_STOP(&pState->StatTransmit, a);
1164 }
1165 vpciSetWriteLed(&pState->VPCI, false);
1166
1167 if (pDrv)
1168 pDrv->pfnEndXmit(pDrv);
1169 ASMAtomicWriteU32(&pState->uIsTransmitting, 0);
1170}
1171
1172/**
1173 * @interface_method_impl{PDMINETWORKDOWN,pfnXmitPending}
1174 */
1175static DECLCALLBACK(void) vnetNetworkDown_XmitPending(PPDMINETWORKDOWN pInterface)
1176{
1177 VNETSTATE *pThis = RT_FROM_MEMBER(pInterface, VNETSTATE, INetworkDown);
1178 vnetTransmitPendingPackets(pThis, pThis->pTxQueue, false /*fOnWorkerThread*/);
1179}
1180
1181#ifdef VNET_TX_DELAY
1182
1183static DECLCALLBACK(void) vnetQueueTransmit(void *pvState, PVQUEUE pQueue)
1184{
1185 VNETSTATE *pState = (VNETSTATE*)pvState;
1186
1187 if (TMTimerIsActive(pState->CTX_SUFF(pTxTimer)))
1188 {
1189 int rc = TMTimerStop(pState->CTX_SUFF(pTxTimer));
1190 Log3(("%s vnetQueueTransmit: Got kicked with notification disabled, "
1191 "re-enable notification and flush TX queue\n", INSTANCE(pState)));
1192 vnetTransmitPendingPackets(pState, pQueue, false /*fOnWorkerThread*/);
1193 if (RT_FAILURE(vnetCsEnter(pState, VERR_SEM_BUSY)))
1194 LogRel(("vnetQueueTransmit: Failed to enter critical section!/n"));
1195 else
1196 {
1197 vringSetNotification(&pState->VPCI, &pState->pTxQueue->VRing, true);
1198 vnetCsLeave(pState);
1199 }
1200 }
1201 else
1202 {
1203 if (RT_FAILURE(vnetCsEnter(pState, VERR_SEM_BUSY)))
1204 LogRel(("vnetQueueTransmit: Failed to enter critical section!/n"));
1205 else
1206 {
1207 vringSetNotification(&pState->VPCI, &pState->pTxQueue->VRing, false);
1208 TMTimerSetMicro(pState->CTX_SUFF(pTxTimer), VNET_TX_DELAY);
1209 pState->u64NanoTS = RTTimeNanoTS();
1210 vnetCsLeave(pState);
1211 }
1212 }
1213}
1214
1215/**
1216 * Transmit Delay Timer handler.
1217 *
1218 * @remarks We only get here when the timer expires.
1219 *
1220 * @param pDevIns Pointer to device instance structure.
1221 * @param pTimer Pointer to the timer.
1222 * @param pvUser NULL.
1223 * @thread EMT
1224 */
1225static DECLCALLBACK(void) vnetTxTimer(PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvUser)
1226{
1227 VNETSTATE *pState = (VNETSTATE*)pvUser;
1228
1229 uint32_t u32MicroDiff = (uint32_t)((RTTimeNanoTS() - pState->u64NanoTS)/1000);
1230 if (u32MicroDiff < pState->u32MinDiff)
1231 pState->u32MinDiff = u32MicroDiff;
1232 if (u32MicroDiff > pState->u32MaxDiff)
1233 pState->u32MaxDiff = u32MicroDiff;
1234 pState->u32AvgDiff = (pState->u32AvgDiff * pState->u32i + u32MicroDiff) / (pState->u32i + 1);
1235 pState->u32i++;
1236 Log3(("vnetTxTimer: Expired, diff %9d usec, avg %9d usec, min %9d usec, max %9d usec\n",
1237 u32MicroDiff, pState->u32AvgDiff, pState->u32MinDiff, pState->u32MaxDiff));
1238
1239// Log3(("%s vnetTxTimer: Expired\n", INSTANCE(pState)));
1240 vnetTransmitPendingPackets(pState, pState->pTxQueue, false /*fOnWorkerThread*/);
1241 if (RT_FAILURE(vnetCsEnter(pState, VERR_SEM_BUSY)))
1242 {
1243 LogRel(("vnetTxTimer: Failed to enter critical section!/n"));
1244 return;
1245 }
1246 vringSetNotification(&pState->VPCI, &pState->pTxQueue->VRing, true);
1247 vnetCsLeave(pState);
1248}
1249
1250#else /* !VNET_TX_DELAY */
1251
1252static DECLCALLBACK(void) vnetQueueTransmit(void *pvState, PVQUEUE pQueue)
1253{
1254 VNETSTATE *pState = (VNETSTATE*)pvState;
1255
1256 vnetTransmitPendingPackets(pState, pQueue, false /*fOnWorkerThread*/);
1257}
1258
1259#endif /* !VNET_TX_DELAY */
1260
1261static uint8_t vnetControlRx(PVNETSTATE pState, PVNETCTLHDR pCtlHdr, PVQUEUEELEM pElem)
1262{
1263 uint8_t u8Ack = VNET_OK;
1264 uint8_t fOn, fDrvWasPromisc = pState->fPromiscuous | pState->fAllMulti;
1265 PDMDevHlpPhysRead(pState->VPCI.CTX_SUFF(pDevIns),
1266 pElem->aSegsOut[1].addr,
1267 &fOn, sizeof(fOn));
1268 Log(("%s vnetControlRx: uCommand=%u fOn=%u\n", INSTANCE(pState), pCtlHdr->u8Command, fOn));
1269 switch (pCtlHdr->u8Command)
1270 {
1271 case VNET_CTRL_CMD_RX_MODE_PROMISC:
1272 pState->fPromiscuous = !!fOn;
1273 break;
1274 case VNET_CTRL_CMD_RX_MODE_ALLMULTI:
1275 pState->fAllMulti = !!fOn;
1276 break;
1277 default:
1278 u8Ack = VNET_ERROR;
1279 }
1280 if (fDrvWasPromisc != (pState->fPromiscuous | pState->fAllMulti) && pState->pDrv)
1281 pState->pDrv->pfnSetPromiscuousMode(pState->pDrv,
1282 (pState->fPromiscuous | pState->fAllMulti));
1283
1284 return u8Ack;
1285}
1286
1287static uint8_t vnetControlMac(PVNETSTATE pState, PVNETCTLHDR pCtlHdr, PVQUEUEELEM pElem)
1288{
1289 uint32_t nMacs = 0;
1290
1291 if (pCtlHdr->u8Command != VNET_CTRL_CMD_MAC_TABLE_SET
1292 || pElem->nOut != 3
1293 || pElem->aSegsOut[1].cb < sizeof(nMacs)
1294 || pElem->aSegsOut[2].cb < sizeof(nMacs))
1295 {
1296 Log(("%s vnetControlMac: Segment layout is wrong "
1297 "(u8Command=%u nOut=%u cb1=%u cb2=%u)\n", INSTANCE(pState),
1298 pCtlHdr->u8Command, pElem->nOut,
1299 pElem->aSegsOut[1].cb, pElem->aSegsOut[2].cb));
1300 return VNET_ERROR;
1301 }
1302
1303 /* Load unicast addresses */
1304 PDMDevHlpPhysRead(pState->VPCI.CTX_SUFF(pDevIns),
1305 pElem->aSegsOut[1].addr,
1306 &nMacs, sizeof(nMacs));
1307
1308 if (pElem->aSegsOut[1].cb < nMacs * sizeof(RTMAC) + sizeof(nMacs))
1309 {
1310 Log(("%s vnetControlMac: The unicast mac segment is too small "
1311 "(nMacs=%u cb=%u)\n", INSTANCE(pState), pElem->aSegsOut[1].cb));
1312 return VNET_ERROR;
1313 }
1314
1315 if (nMacs > VNET_MAC_FILTER_LEN)
1316 {
1317 Log(("%s vnetControlMac: MAC table is too big, have to use promiscuous"
1318 " mode (nMacs=%u)\n", INSTANCE(pState), nMacs));
1319 pState->fPromiscuous = true;
1320 }
1321 else
1322 {
1323 if (nMacs)
1324 PDMDevHlpPhysRead(pState->VPCI.CTX_SUFF(pDevIns),
1325 pElem->aSegsOut[1].addr + sizeof(nMacs),
1326 pState->aMacFilter, nMacs * sizeof(RTMAC));
1327 pState->nMacFilterEntries = nMacs;
1328#ifdef DEBUG
1329 Log(("%s vnetControlMac: unicast macs:\n", INSTANCE(pState)));
1330 for(unsigned i = 0; i < nMacs; i++)
1331 Log((" %RTmac\n", &pState->aMacFilter[i]));
1332#endif /* DEBUG */
1333 }
1334
1335 /* Load multicast addresses */
1336 PDMDevHlpPhysRead(pState->VPCI.CTX_SUFF(pDevIns),
1337 pElem->aSegsOut[2].addr,
1338 &nMacs, sizeof(nMacs));
1339
1340 if (pElem->aSegsOut[2].cb < nMacs * sizeof(RTMAC) + sizeof(nMacs))
1341 {
1342 Log(("%s vnetControlMac: The multicast mac segment is too small "
1343 "(nMacs=%u cb=%u)\n", INSTANCE(pState), pElem->aSegsOut[2].cb));
1344 return VNET_ERROR;
1345 }
1346
1347 if (nMacs > VNET_MAC_FILTER_LEN - pState->nMacFilterEntries)
1348 {
1349 Log(("%s vnetControlMac: MAC table is too big, have to use allmulti"
1350 " mode (nMacs=%u)\n", INSTANCE(pState), nMacs));
1351 pState->fAllMulti = true;
1352 }
1353 else
1354 {
1355 if (nMacs)
1356 PDMDevHlpPhysRead(pState->VPCI.CTX_SUFF(pDevIns),
1357 pElem->aSegsOut[2].addr + sizeof(nMacs),
1358 &pState->aMacFilter[pState->nMacFilterEntries],
1359 nMacs * sizeof(RTMAC));
1360#ifdef DEBUG
1361 Log(("%s vnetControlMac: multicast macs:\n", INSTANCE(pState)));
1362 for(unsigned i = 0; i < nMacs; i++)
1363 Log((" %RTmac\n",
1364 &pState->aMacFilter[i+pState->nMacFilterEntries]));
1365#endif /* DEBUG */
1366 pState->nMacFilterEntries += nMacs;
1367 }
1368
1369 return VNET_OK;
1370}
1371
1372static uint8_t vnetControlVlan(PVNETSTATE pState, PVNETCTLHDR pCtlHdr, PVQUEUEELEM pElem)
1373{
1374 uint8_t u8Ack = VNET_OK;
1375 uint16_t u16Vid;
1376
1377 if (pElem->nOut != 2 || pElem->aSegsOut[1].cb != sizeof(u16Vid))
1378 {
1379 Log(("%s vnetControlVlan: Segment layout is wrong "
1380 "(u8Command=%u nOut=%u cb=%u)\n", INSTANCE(pState),
1381 pCtlHdr->u8Command, pElem->nOut, pElem->aSegsOut[1].cb));
1382 return VNET_ERROR;
1383 }
1384
1385 PDMDevHlpPhysRead(pState->VPCI.CTX_SUFF(pDevIns),
1386 pElem->aSegsOut[1].addr,
1387 &u16Vid, sizeof(u16Vid));
1388
1389 if (u16Vid >= VNET_MAX_VID)
1390 {
1391 Log(("%s vnetControlVlan: VLAN ID is out of range "
1392 "(VID=%u)\n", INSTANCE(pState), u16Vid));
1393 return VNET_ERROR;
1394 }
1395
1396 Log(("%s vnetControlVlan: uCommand=%u VID=%u\n", INSTANCE(pState),
1397 pCtlHdr->u8Command, u16Vid));
1398
1399 switch (pCtlHdr->u8Command)
1400 {
1401 case VNET_CTRL_CMD_VLAN_ADD:
1402 ASMBitSet(pState->aVlanFilter, u16Vid);
1403 break;
1404 case VNET_CTRL_CMD_VLAN_DEL:
1405 ASMBitClear(pState->aVlanFilter, u16Vid);
1406 break;
1407 default:
1408 u8Ack = VNET_ERROR;
1409 }
1410
1411 return u8Ack;
1412}
1413
1414
1415static DECLCALLBACK(void) vnetQueueControl(void *pvState, PVQUEUE pQueue)
1416{
1417 VNETSTATE *pState = (VNETSTATE*)pvState;
1418 uint8_t u8Ack;
1419 VQUEUEELEM elem;
1420 while (vqueueGet(&pState->VPCI, pQueue, &elem))
1421 {
1422 unsigned int uOffset = 0;
1423 if (elem.nOut < 1 || elem.aSegsOut[0].cb < sizeof(VNETCTLHDR))
1424 {
1425 Log(("%s vnetQueueControl: The first 'out' segment is not the "
1426 "header! (%u < 1 || %u < %u).\n", INSTANCE(pState), elem.nOut,
1427 elem.aSegsOut[0].cb,sizeof(VNETCTLHDR)));
1428 break; /* Skip the element and hope the next one is good. */
1429 }
1430 else if ( elem.nIn < 1
1431 || elem.aSegsIn[elem.nIn - 1].cb < sizeof(VNETCTLACK))
1432 {
1433 Log(("%s vnetQueueControl: The last 'in' segment is too small "
1434 "to hold the acknowledge! (%u < 1 || %u < %u).\n",
1435 INSTANCE(pState), elem.nIn, elem.aSegsIn[elem.nIn - 1].cb,
1436 sizeof(VNETCTLACK)));
1437 break; /* Skip the element and hope the next one is good. */
1438 }
1439 else
1440 {
1441 VNETCTLHDR CtlHdr;
1442 PDMDevHlpPhysRead(pState->VPCI.CTX_SUFF(pDevIns),
1443 elem.aSegsOut[0].addr,
1444 &CtlHdr, sizeof(CtlHdr));
1445 switch (CtlHdr.u8Class)
1446 {
1447 case VNET_CTRL_CLS_RX_MODE:
1448 u8Ack = vnetControlRx(pState, &CtlHdr, &elem);
1449 break;
1450 case VNET_CTRL_CLS_MAC:
1451 u8Ack = vnetControlMac(pState, &CtlHdr, &elem);
1452 break;
1453 case VNET_CTRL_CLS_VLAN:
1454 u8Ack = vnetControlVlan(pState, &CtlHdr, &elem);
1455 break;
1456 default:
1457 u8Ack = VNET_ERROR;
1458 }
1459 Log(("%s Processed control message %u, ack=%u.\n", INSTANCE(pState),
1460 CtlHdr.u8Class, u8Ack));
1461 PDMDevHlpPhysWrite(pState->VPCI.CTX_SUFF(pDevIns),
1462 elem.aSegsIn[elem.nIn - 1].addr,
1463 &u8Ack, sizeof(u8Ack));
1464 }
1465 vqueuePut(&pState->VPCI, pQueue, &elem, sizeof(u8Ack));
1466 vqueueSync(&pState->VPCI, pQueue);
1467 }
1468}
1469
1470/**
1471 * Saves the configuration.
1472 *
1473 * @param pState The VNET state.
1474 * @param pSSM The handle to the saved state.
1475 */
1476static void vnetSaveConfig(VNETSTATE *pState, PSSMHANDLE pSSM)
1477{
1478 SSMR3PutMem(pSSM, &pState->macConfigured, sizeof(pState->macConfigured));
1479}
1480
1481/**
1482 * Live save - save basic configuration.
1483 *
1484 * @returns VBox status code.
1485 * @param pDevIns The device instance.
1486 * @param pSSM The handle to the saved state.
1487 * @param uPass
1488 */
1489static DECLCALLBACK(int) vnetLiveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uPass)
1490{
1491 VNETSTATE *pState = PDMINS_2_DATA(pDevIns, VNETSTATE*);
1492 vnetSaveConfig(pState, pSSM);
1493 return VINF_SSM_DONT_CALL_AGAIN;
1494}
1495
1496/**
1497 * Prepares for state saving.
1498 *
1499 * @returns VBox status code.
1500 * @param pDevIns The device instance.
1501 * @param pSSM The handle to the saved state.
1502 */
1503static DECLCALLBACK(int) vnetSavePrep(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
1504{
1505 VNETSTATE* pState = PDMINS_2_DATA(pDevIns, VNETSTATE*);
1506
1507 int rc = vnetCsRxEnter(pState, VERR_SEM_BUSY);
1508 if (RT_UNLIKELY(rc != VINF_SUCCESS))
1509 return rc;
1510 vnetCsRxLeave(pState);
1511 return VINF_SUCCESS;
1512}
1513
1514/**
1515 * Saves the state of device.
1516 *
1517 * @returns VBox status code.
1518 * @param pDevIns The device instance.
1519 * @param pSSM The handle to the saved state.
1520 */
1521static DECLCALLBACK(int) vnetSaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
1522{
1523 VNETSTATE* pState = PDMINS_2_DATA(pDevIns, VNETSTATE*);
1524
1525 /* Save config first */
1526 vnetSaveConfig(pState, pSSM);
1527
1528 /* Save the common part */
1529 int rc = vpciSaveExec(&pState->VPCI, pSSM);
1530 AssertRCReturn(rc, rc);
1531 /* Save device-specific part */
1532 rc = SSMR3PutMem( pSSM, pState->config.mac.au8, sizeof(pState->config.mac));
1533 AssertRCReturn(rc, rc);
1534 rc = SSMR3PutBool(pSSM, pState->fPromiscuous);
1535 AssertRCReturn(rc, rc);
1536 rc = SSMR3PutBool(pSSM, pState->fAllMulti);
1537 AssertRCReturn(rc, rc);
1538 rc = SSMR3PutU32( pSSM, pState->nMacFilterEntries);
1539 AssertRCReturn(rc, rc);
1540 rc = SSMR3PutMem( pSSM, pState->aMacFilter,
1541 pState->nMacFilterEntries * sizeof(RTMAC));
1542 AssertRCReturn(rc, rc);
1543 rc = SSMR3PutMem( pSSM, pState->aVlanFilter, sizeof(pState->aVlanFilter));
1544 AssertRCReturn(rc, rc);
1545 Log(("%s State has been saved\n", INSTANCE(pState)));
1546 return VINF_SUCCESS;
1547}
1548
1549
1550/**
1551 * Serializes the receive thread, it may be working inside the critsect.
1552 *
1553 * @returns VBox status code.
1554 * @param pDevIns The device instance.
1555 * @param pSSM The handle to the saved state.
1556 */
1557static DECLCALLBACK(int) vnetLoadPrep(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
1558{
1559 VNETSTATE* pState = PDMINS_2_DATA(pDevIns, VNETSTATE*);
1560
1561 int rc = vnetCsRxEnter(pState, VERR_SEM_BUSY);
1562 if (RT_UNLIKELY(rc != VINF_SUCCESS))
1563 return rc;
1564 vnetCsRxLeave(pState);
1565 return VINF_SUCCESS;
1566}
1567
1568/**
1569 * Takes down the link temporarily if it's current status is up.
1570 *
1571 * This is used during restore and when replumbing the network link.
1572 *
1573 * The temporary link outage is supposed to indicate to the OS that all network
1574 * connections have been lost and that it for instance is appropriate to
1575 * renegotiate any DHCP lease.
1576 *
1577 * @param pThis The PCNet instance data.
1578 */
1579static void vnetTempLinkDown(PVNETSTATE pState)
1580{
1581 if (STATUS & VNET_S_LINK_UP)
1582 {
1583 STATUS &= ~VNET_S_LINK_UP;
1584 vpciRaiseInterrupt(&pState->VPCI, VERR_SEM_BUSY, VPCI_ISR_CONFIG);
1585 /* Restore the link back in 5 seconds. */
1586 int rc = TMTimerSetMillies(pState->pLinkUpTimer, 5000);
1587 AssertRC(rc);
1588 }
1589}
1590
1591
1592/**
1593 * Restore previously saved state of device.
1594 *
1595 * @returns VBox status code.
1596 * @param pDevIns The device instance.
1597 * @param pSSM The handle to the saved state.
1598 * @param uVersion The data unit version number.
1599 * @param uPass The data pass.
1600 */
1601static DECLCALLBACK(int) vnetLoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
1602{
1603 VNETSTATE *pState = PDMINS_2_DATA(pDevIns, VNETSTATE*);
1604 int rc;
1605
1606 /* config checks */
1607 RTMAC macConfigured;
1608 rc = SSMR3GetMem(pSSM, &macConfigured, sizeof(macConfigured));
1609 AssertRCReturn(rc, rc);
1610 if (memcmp(&macConfigured, &pState->macConfigured, sizeof(macConfigured))
1611 && (uPass == 0 || !PDMDevHlpVMTeleportedAndNotFullyResumedYet(pDevIns)))
1612 LogRel(("%s: The mac address differs: config=%RTmac saved=%RTmac\n", INSTANCE(pState), &pState->macConfigured, &macConfigured));
1613
1614 rc = vpciLoadExec(&pState->VPCI, pSSM, uVersion, uPass, VNET_N_QUEUES);
1615 AssertRCReturn(rc, rc);
1616
1617 if (uPass == SSM_PASS_FINAL)
1618 {
1619 rc = SSMR3GetMem( pSSM, pState->config.mac.au8,
1620 sizeof(pState->config.mac));
1621 AssertRCReturn(rc, rc);
1622
1623 if (uVersion > VIRTIO_SAVEDSTATE_VERSION_3_1_BETA1)
1624 {
1625 rc = SSMR3GetBool(pSSM, &pState->fPromiscuous);
1626 AssertRCReturn(rc, rc);
1627 rc = SSMR3GetBool(pSSM, &pState->fAllMulti);
1628 AssertRCReturn(rc, rc);
1629 rc = SSMR3GetU32(pSSM, &pState->nMacFilterEntries);
1630 AssertRCReturn(rc, rc);
1631 rc = SSMR3GetMem(pSSM, pState->aMacFilter,
1632 pState->nMacFilterEntries * sizeof(RTMAC));
1633 AssertRCReturn(rc, rc);
1634 /* Clear the rest. */
1635 if (pState->nMacFilterEntries < VNET_MAC_FILTER_LEN)
1636 memset(&pState->aMacFilter[pState->nMacFilterEntries],
1637 0,
1638 (VNET_MAC_FILTER_LEN - pState->nMacFilterEntries)
1639 * sizeof(RTMAC));
1640 rc = SSMR3GetMem(pSSM, pState->aVlanFilter,
1641 sizeof(pState->aVlanFilter));
1642 AssertRCReturn(rc, rc);
1643 }
1644 else
1645 {
1646 pState->fPromiscuous = true;
1647 pState->fAllMulti = false;
1648 pState->nMacFilterEntries = 0;
1649 memset(pState->aMacFilter, 0, VNET_MAC_FILTER_LEN * sizeof(RTMAC));
1650 memset(pState->aVlanFilter, 0, sizeof(pState->aVlanFilter));
1651 if (pState->pDrv)
1652 pState->pDrv->pfnSetPromiscuousMode(pState->pDrv, true);
1653 }
1654 }
1655
1656 return rc;
1657}
1658
1659/**
1660 * Link status adjustments after loading.
1661 *
1662 * @returns VBox status code.
1663 * @param pDevIns The device instance.
1664 * @param pSSM The handle to the saved state.
1665 */
1666static DECLCALLBACK(int) vnetLoadDone(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
1667{
1668 VNETSTATE *pState = PDMINS_2_DATA(pDevIns, VNETSTATE*);
1669
1670 if (pState->pDrv)
1671 pState->pDrv->pfnSetPromiscuousMode(pState->pDrv,
1672 (pState->fPromiscuous | pState->fAllMulti));
1673 /*
1674 * Indicate link down to the guest OS that all network connections have
1675 * been lost, unless we've been teleported here.
1676 */
1677 if (!PDMDevHlpVMTeleportedAndNotFullyResumedYet(pDevIns))
1678 vnetTempLinkDown(pState);
1679
1680 return VINF_SUCCESS;
1681}
1682
1683/**
1684 * Map PCI I/O region.
1685 *
1686 * @return VBox status code.
1687 * @param pPciDev Pointer to PCI device. Use pPciDev->pDevIns to get the device instance.
1688 * @param iRegion The region number.
1689 * @param GCPhysAddress Physical address of the region. If iType is PCI_ADDRESS_SPACE_IO, this is an
1690 * I/O port, else it's a physical address.
1691 * This address is *NOT* relative to pci_mem_base like earlier!
1692 * @param cb Region size.
1693 * @param enmType One of the PCI_ADDRESS_SPACE_* values.
1694 * @thread EMT
1695 */
1696static DECLCALLBACK(int) vnetMap(PPCIDEVICE pPciDev, int iRegion,
1697 RTGCPHYS GCPhysAddress, uint32_t cb, PCIADDRESSSPACE enmType)
1698{
1699 int rc;
1700 VNETSTATE *pState = PDMINS_2_DATA(pPciDev->pDevIns, VNETSTATE*);
1701
1702 if (enmType != PCI_ADDRESS_SPACE_IO)
1703 {
1704 /* We should never get here */
1705 AssertMsgFailed(("Invalid PCI address space param in map callback"));
1706 return VERR_INTERNAL_ERROR;
1707 }
1708
1709 pState->VPCI.addrIOPort = (RTIOPORT)GCPhysAddress;
1710 rc = PDMDevHlpIOPortRegister(pPciDev->pDevIns, pState->VPCI.addrIOPort,
1711 cb, 0, vnetIOPortOut, vnetIOPortIn,
1712 NULL, NULL, "VirtioNet");
1713#ifdef VNET_GC_SUPPORT
1714 AssertRCReturn(rc, rc);
1715 rc = PDMDevHlpIOPortRegisterR0(pPciDev->pDevIns, pState->VPCI.addrIOPort,
1716 cb, 0, "vnetIOPortOut", "vnetIOPortIn",
1717 NULL, NULL, "VirtioNet");
1718 AssertRCReturn(rc, rc);
1719 rc = PDMDevHlpIOPortRegisterRC(pPciDev->pDevIns, pState->VPCI.addrIOPort,
1720 cb, 0, "vnetIOPortOut", "vnetIOPortIn",
1721 NULL, NULL, "VirtioNet");
1722#endif
1723 AssertRC(rc);
1724 return rc;
1725}
1726
1727
1728/* -=-=-=-=- PDMDEVREG -=-=-=-=- */
1729
1730/**
1731 * Detach notification.
1732 *
1733 * One port on the network card has been disconnected from the network.
1734 *
1735 * @param pDevIns The device instance.
1736 * @param iLUN The logical unit which is being detached.
1737 * @param fFlags Flags, combination of the PDMDEVATT_FLAGS_* \#defines.
1738 */
1739static DECLCALLBACK(void) vnetDetach(PPDMDEVINS pDevIns, unsigned iLUN, uint32_t fFlags)
1740{
1741 VNETSTATE *pState = PDMINS_2_DATA(pDevIns, VNETSTATE*);
1742 Log(("%s vnetDetach:\n", INSTANCE(pState)));
1743
1744 AssertLogRelReturnVoid(iLUN == 0);
1745
1746 int rc = vnetCsEnter(pState, VERR_SEM_BUSY);
1747 if (RT_FAILURE(rc))
1748 {
1749 LogRel(("vnetDetach failed to enter critical section!\n"));
1750 return;
1751 }
1752
1753 /*
1754 * Zero some important members.
1755 */
1756 pState->pDrvBase = NULL;
1757 pState->pDrv = NULL;
1758
1759 vnetCsLeave(pState);
1760}
1761
1762/**
1763 * Attach the Network attachment.
1764 *
1765 * One port on the network card has been connected to a network.
1766 *
1767 * @returns VBox status code.
1768 * @param pDevIns The device instance.
1769 * @param iLUN The logical unit which is being attached.
1770 * @param fFlags Flags, combination of the PDMDEVATT_FLAGS_* \#defines.
1771 *
1772 * @remarks This code path is not used during construction.
1773 */
1774static DECLCALLBACK(int) vnetAttach(PPDMDEVINS pDevIns, unsigned iLUN, uint32_t fFlags)
1775{
1776 VNETSTATE *pState = PDMINS_2_DATA(pDevIns, VNETSTATE*);
1777 LogFlow(("%s vnetAttach:\n", INSTANCE(pState)));
1778
1779 AssertLogRelReturn(iLUN == 0, VERR_PDM_NO_SUCH_LUN);
1780
1781 int rc = vnetCsEnter(pState, VERR_SEM_BUSY);
1782 if (RT_FAILURE(rc))
1783 {
1784 LogRel(("vnetAttach failed to enter critical section!\n"));
1785 return rc;
1786 }
1787
1788 /*
1789 * Attach the driver.
1790 */
1791 rc = PDMDevHlpDriverAttach(pDevIns, 0, &pState->VPCI.IBase, &pState->pDrvBase, "Network Port");
1792 if (RT_SUCCESS(rc))
1793 {
1794 if (rc == VINF_NAT_DNS)
1795 {
1796#ifdef RT_OS_LINUX
1797 PDMDevHlpVMSetRuntimeError(pDevIns, 0 /*fFlags*/, "NoDNSforNAT",
1798 N_("A Domain Name Server (DNS) for NAT networking could not be determined. Please check your /etc/resolv.conf for <tt>nameserver</tt> entries. Either add one manually (<i>man resolv.conf</i>) or ensure that your host is correctly connected to an ISP. If you ignore this warning the guest will not be able to perform nameserver lookups and it will probably observe delays if trying so"));
1799#else
1800 PDMDevHlpVMSetRuntimeError(pDevIns, 0 /*fFlags*/, "NoDNSforNAT",
1801 N_("A Domain Name Server (DNS) for NAT networking could not be determined. Ensure that your host is correctly connected to an ISP. If you ignore this warning the guest will not be able to perform nameserver lookups and it will probably observe delays if trying so"));
1802#endif
1803 }
1804 pState->pDrv = PDMIBASE_QUERY_INTERFACE(pState->pDrvBase, PDMINETWORKUP);
1805 AssertMsgStmt(pState->pDrv, ("Failed to obtain the PDMINETWORKUP interface!\n"),
1806 rc = VERR_PDM_MISSING_INTERFACE_BELOW);
1807 }
1808 else if ( rc == VERR_PDM_NO_ATTACHED_DRIVER
1809 || rc == VERR_PDM_CFG_MISSING_DRIVER_NAME)
1810 {
1811 /* This should never happen because this function is not called
1812 * if there is no driver to attach! */
1813 Log(("%s No attached driver!\n", INSTANCE(pState)));
1814 }
1815
1816 /*
1817 * Temporary set the link down if it was up so that the guest
1818 * will know that we have change the configuration of the
1819 * network card
1820 */
1821 if (RT_SUCCESS(rc))
1822 vnetTempLinkDown(pState);
1823
1824 vnetCsLeave(pState);
1825 return rc;
1826
1827}
1828
1829/**
1830 * @copydoc FNPDMDEVSUSPEND
1831 */
1832static DECLCALLBACK(void) vnetSuspend(PPDMDEVINS pDevIns)
1833{
1834 /* Poke thread waiting for buffer space. */
1835 vnetWakeupReceive(pDevIns);
1836}
1837
1838/**
1839 * @copydoc FNPDMDEVPOWEROFF
1840 */
1841static DECLCALLBACK(void) vnetPowerOff(PPDMDEVINS pDevIns)
1842{
1843 /* Poke thread waiting for buffer space. */
1844 vnetWakeupReceive(pDevIns);
1845}
1846
1847/**
1848 * Device relocation callback.
1849 *
1850 * When this callback is called the device instance data, and if the
1851 * device have a GC component, is being relocated, or/and the selectors
1852 * have been changed. The device must use the chance to perform the
1853 * necessary pointer relocations and data updates.
1854 *
1855 * Before the GC code is executed the first time, this function will be
1856 * called with a 0 delta so GC pointer calculations can be one in one place.
1857 *
1858 * @param pDevIns Pointer to the device instance.
1859 * @param offDelta The relocation delta relative to the old location.
1860 *
1861 * @remark A relocation CANNOT fail.
1862 */
1863static DECLCALLBACK(void) vnetRelocate(PPDMDEVINS pDevIns, RTGCINTPTR offDelta)
1864{
1865 VNETSTATE* pState = PDMINS_2_DATA(pDevIns, VNETSTATE*);
1866 vpciRelocate(pDevIns, offDelta);
1867 pState->pCanRxQueueRC = PDMQueueRCPtr(pState->pCanRxQueueR3);
1868#ifdef VNET_TX_DELAY
1869 pState->pTxTimerRC = TMTimerRCPtr(pState->pTxTimerR3);
1870#endif /* VNET_TX_DELAY */
1871 // TBD
1872}
1873
1874/**
1875 * Destruct a device instance.
1876 *
1877 * We need to free non-VM resources only.
1878 *
1879 * @returns VBox status.
1880 * @param pDevIns The device instance data.
1881 * @thread EMT
1882 */
1883static DECLCALLBACK(int) vnetDestruct(PPDMDEVINS pDevIns)
1884{
1885 VNETSTATE* pState = PDMINS_2_DATA(pDevIns, VNETSTATE*);
1886 PDMDEV_CHECK_VERSIONS_RETURN_QUIET(pDevIns);
1887
1888 LogRel(("TxTimer stats (avg/min/max): %7d usec %7d usec %7d usec\n",
1889 pState->u32AvgDiff, pState->u32MinDiff, pState->u32MaxDiff));
1890 Log(("%s Destroying instance\n", INSTANCE(pState)));
1891 if (pState->hEventMoreRxDescAvail != NIL_RTSEMEVENT)
1892 {
1893 RTSemEventSignal(pState->hEventMoreRxDescAvail);
1894 RTSemEventDestroy(pState->hEventMoreRxDescAvail);
1895 pState->hEventMoreRxDescAvail = NIL_RTSEMEVENT;
1896 }
1897
1898 // if (PDMCritSectIsInitialized(&pState->csRx))
1899 // PDMR3CritSectDelete(&pState->csRx);
1900
1901 return vpciDestruct(&pState->VPCI);
1902}
1903
1904/**
1905 * @interface_method_impl{PDMDEVREG,pfnConstruct}
1906 */
1907static DECLCALLBACK(int) vnetConstruct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
1908{
1909 VNETSTATE* pState = PDMINS_2_DATA(pDevIns, VNETSTATE*);
1910 int rc;
1911 PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
1912
1913 /* Initialize PCI part first. */
1914 pState->VPCI.IBase.pfnQueryInterface = vnetQueryInterface;
1915 rc = vpciConstruct(pDevIns, &pState->VPCI, iInstance,
1916 VNET_NAME_FMT, VNET_PCI_SUBSYSTEM_ID,
1917 VNET_PCI_CLASS, VNET_N_QUEUES);
1918 pState->pRxQueue = vpciAddQueue(&pState->VPCI, 256, vnetQueueReceive, "RX ");
1919 pState->pTxQueue = vpciAddQueue(&pState->VPCI, 256, vnetQueueTransmit, "TX ");
1920 pState->pCtlQueue = vpciAddQueue(&pState->VPCI, 16, vnetQueueControl, "CTL");
1921
1922 Log(("%s Constructing new instance\n", INSTANCE(pState)));
1923
1924 pState->hEventMoreRxDescAvail = NIL_RTSEMEVENT;
1925
1926 /*
1927 * Validate configuration.
1928 */
1929 if (!CFGMR3AreValuesValid(pCfg, "MAC\0" "CableConnected\0" "LineSpeed\0"))
1930 return PDMDEV_SET_ERROR(pDevIns, VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES,
1931 N_("Invalid configuration for VirtioNet device"));
1932
1933 /* Get config params */
1934 rc = CFGMR3QueryBytes(pCfg, "MAC", pState->macConfigured.au8,
1935 sizeof(pState->macConfigured));
1936 if (RT_FAILURE(rc))
1937 return PDMDEV_SET_ERROR(pDevIns, rc,
1938 N_("Configuration error: Failed to get MAC address"));
1939 rc = CFGMR3QueryBool(pCfg, "CableConnected", &pState->fCableConnected);
1940 if (RT_FAILURE(rc))
1941 return PDMDEV_SET_ERROR(pDevIns, rc,
1942 N_("Configuration error: Failed to get the value of 'CableConnected'"));
1943
1944 /* Initialize PCI config space */
1945 memcpy(pState->config.mac.au8, pState->macConfigured.au8, sizeof(pState->config.mac.au8));
1946 pState->config.uStatus = 0;
1947
1948 /* Initialize state structure */
1949 pState->u32PktNo = 1;
1950
1951 /* Interfaces */
1952 pState->INetworkDown.pfnWaitReceiveAvail = vnetNetworkDown_WaitReceiveAvail;
1953 pState->INetworkDown.pfnReceive = vnetNetworkDown_Receive;
1954 pState->INetworkDown.pfnReceiveGso = vnetNetworkDown_ReceiveGso;
1955 pState->INetworkDown.pfnXmitPending = vnetNetworkDown_XmitPending;
1956
1957 pState->INetworkConfig.pfnGetMac = vnetGetMac;
1958 pState->INetworkConfig.pfnGetLinkState = vnetGetLinkState;
1959 pState->INetworkConfig.pfnSetLinkState = vnetSetLinkState;
1960
1961 /* Initialize critical section. */
1962 // char szTmp[sizeof(pState->VPCI.szInstance) + 2];
1963 // RTStrPrintf(szTmp, sizeof(szTmp), "%sRX", pState->VPCI.szInstance);
1964 // rc = PDMDevHlpCritSectInit(pDevIns, &pState->csRx, szTmp);
1965 // if (RT_FAILURE(rc))
1966 // return rc;
1967
1968 /* Map our ports to IO space. */
1969 rc = PDMDevHlpPCIIORegionRegister(pDevIns, 0,
1970 VPCI_CONFIG + sizeof(VNetPCIConfig),
1971 PCI_ADDRESS_SPACE_IO, vnetMap);
1972 if (RT_FAILURE(rc))
1973 return rc;
1974
1975
1976 /* Register save/restore state handlers. */
1977 rc = PDMDevHlpSSMRegisterEx(pDevIns, VIRTIO_SAVEDSTATE_VERSION, sizeof(VNETSTATE), NULL,
1978 NULL, vnetLiveExec, NULL,
1979 vnetSavePrep, vnetSaveExec, NULL,
1980 vnetLoadPrep, vnetLoadExec, vnetLoadDone);
1981 if (RT_FAILURE(rc))
1982 return rc;
1983
1984 /* Create the RX notifier signaller. */
1985 rc = PDMDevHlpQueueCreate(pDevIns, sizeof(PDMQUEUEITEMCORE), 1, 0,
1986 vnetCanRxQueueConsumer, true, "VNet-Rcv", &pState->pCanRxQueueR3);
1987 if (RT_FAILURE(rc))
1988 return rc;
1989 pState->pCanRxQueueR0 = PDMQueueR0Ptr(pState->pCanRxQueueR3);
1990 pState->pCanRxQueueRC = PDMQueueRCPtr(pState->pCanRxQueueR3);
1991
1992 /* Create Link Up Timer */
1993 rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_VIRTUAL, vnetLinkUpTimer, pState,
1994 TMTIMER_FLAGS_DEFAULT_CRIT_SECT, /** @todo check locking here. */
1995 "VirtioNet Link Up Timer", &pState->pLinkUpTimer);
1996 if (RT_FAILURE(rc))
1997 return rc;
1998
1999#ifdef VNET_TX_DELAY
2000 /* Create Transmit Delay Timer */
2001 rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_VIRTUAL, vnetTxTimer, pState,
2002 TMTIMER_FLAGS_DEFAULT_CRIT_SECT, /** @todo check locking here. */
2003 "VirtioNet TX Delay Timer", &pState->pTxTimerR3);
2004 if (RT_FAILURE(rc))
2005 return rc;
2006 pState->pTxTimerR0 = TMTimerR0Ptr(pState->pTxTimerR3);
2007 pState->pTxTimerRC = TMTimerRCPtr(pState->pTxTimerR3);
2008
2009 pState->u32i = pState->u32AvgDiff = pState->u32MaxDiff = 0;
2010 pState->u32MinDiff = ~0;
2011#endif /* VNET_TX_DELAY */
2012
2013 rc = PDMDevHlpDriverAttach(pDevIns, 0, &pState->VPCI.IBase, &pState->pDrvBase, "Network Port");
2014 if (RT_SUCCESS(rc))
2015 {
2016 if (rc == VINF_NAT_DNS)
2017 {
2018 PDMDevHlpVMSetRuntimeError(pDevIns, 0 /*fFlags*/, "NoDNSforNAT",
2019 N_("A Domain Name Server (DNS) for NAT networking could not be determined. Ensure that your host is correctly connected to an ISP. If you ignore this warning the guest will not be able to perform nameserver lookups and it will probably observe delays if trying so"));
2020 }
2021 pState->pDrv = PDMIBASE_QUERY_INTERFACE(pState->pDrvBase, PDMINETWORKUP);
2022 AssertMsgReturn(pState->pDrv, ("Failed to obtain the PDMINETWORKUP interface!\n"),
2023 VERR_PDM_MISSING_INTERFACE_BELOW);
2024 }
2025 else if ( rc == VERR_PDM_NO_ATTACHED_DRIVER
2026 || rc == VERR_PDM_CFG_MISSING_DRIVER_NAME )
2027 {
2028 /* No error! */
2029 Log(("%s This adapter is not attached to any network!\n", INSTANCE(pState)));
2030 }
2031 else
2032 return PDMDEV_SET_ERROR(pDevIns, rc, N_("Failed to attach the network LUN"));
2033
2034 rc = RTSemEventCreate(&pState->hEventMoreRxDescAvail);
2035 if (RT_FAILURE(rc))
2036 return rc;
2037
2038 rc = vnetReset(pState);
2039 AssertRC(rc);
2040
2041 PDMDevHlpSTAMRegisterF(pDevIns, &pState->StatReceiveBytes, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Amount of data received", "/Devices/VNet%d/Bytes/Receive", iInstance);
2042 PDMDevHlpSTAMRegisterF(pDevIns, &pState->StatTransmitBytes, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Amount of data transmitted", "/Devices/VNet%d/Bytes/Transmit", iInstance);
2043 PDMDevHlpSTAMRegisterF(pDevIns, &pState->StatReceiveGSO, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Number of received GSO packets", "/Devices/VNet%d/Packets/ReceiveGSO", iInstance);
2044 PDMDevHlpSTAMRegisterF(pDevIns, &pState->StatTransmitPackets, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Number of sent packets", "/Devices/VNet%d/Packets/Transmit", iInstance);
2045 PDMDevHlpSTAMRegisterF(pDevIns, &pState->StatTransmitGSO, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Number of sent GSO packets", "/Devices/VNet%d/Packets/Transmit-Gso", iInstance);
2046 PDMDevHlpSTAMRegisterF(pDevIns, &pState->StatTransmitCSum, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT, "Number of completed TX checksums", "/Devices/VNet%d/Packets/Transmit-Csum", iInstance);
2047#if defined(VBOX_WITH_STATISTICS)
2048 PDMDevHlpSTAMRegisterF(pDevIns, &pState->StatReceive, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling receive", "/Devices/VNet%d/Receive/Total", iInstance);
2049 PDMDevHlpSTAMRegisterF(pDevIns, &pState->StatReceiveStore, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling receive storing", "/Devices/VNet%d/Receive/Store", iInstance);
2050 PDMDevHlpSTAMRegisterF(pDevIns, &pState->StatRxOverflow, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_OCCURENCE, "Profiling RX overflows", "/Devices/VNet%d/RxOverflow", iInstance);
2051 PDMDevHlpSTAMRegisterF(pDevIns, &pState->StatRxOverflowWakeup, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Nr of RX overflow wakeups", "/Devices/VNet%d/RxOverflowWakeup", iInstance);
2052 PDMDevHlpSTAMRegisterF(pDevIns, &pState->StatTransmit, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling transmits in HC", "/Devices/VNet%d/Transmit/Total", iInstance);
2053 PDMDevHlpSTAMRegisterF(pDevIns, &pState->StatTransmitSend, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling send transmit in HC", "/Devices/VNet%d/Transmit/Send", iInstance);
2054#endif /* VBOX_WITH_STATISTICS */
2055
2056 return VINF_SUCCESS;
2057}
2058
2059/**
2060 * The device registration structure.
2061 */
2062const PDMDEVREG g_DeviceVirtioNet =
2063{
2064 /* Structure version. PDM_DEVREG_VERSION defines the current version. */
2065 PDM_DEVREG_VERSION,
2066 /* Device name. */
2067 "virtio-net",
2068 /* Name of guest context module (no path).
2069 * Only evalutated if PDM_DEVREG_FLAGS_RC is set. */
2070 "VBoxDDGC.gc",
2071 /* Name of ring-0 module (no path).
2072 * Only evalutated if PDM_DEVREG_FLAGS_RC is set. */
2073 "VBoxDDR0.r0",
2074 /* The description of the device. The UTF-8 string pointed to shall, like this structure,
2075 * remain unchanged from registration till VM destruction. */
2076 "Virtio Ethernet.\n",
2077
2078 /* Flags, combination of the PDM_DEVREG_FLAGS_* \#defines. */
2079#ifdef VNET_GC_SUPPORT
2080 PDM_DEVREG_FLAGS_DEFAULT_BITS | PDM_DEVREG_FLAGS_RC | PDM_DEVREG_FLAGS_R0,
2081#else
2082 PDM_DEVREG_FLAGS_DEFAULT_BITS,
2083#endif
2084 /* Device class(es), combination of the PDM_DEVREG_CLASS_* \#defines. */
2085 PDM_DEVREG_CLASS_NETWORK,
2086 /* Maximum number of instances (per VM). */
2087 8,
2088 /* Size of the instance data. */
2089 sizeof(VNETSTATE),
2090
2091 /* Construct instance - required. */
2092 vnetConstruct,
2093 /* Destruct instance - optional. */
2094 vnetDestruct,
2095 /* Relocation command - optional. */
2096 vnetRelocate,
2097 /* I/O Control interface - optional. */
2098 NULL,
2099 /* Power on notification - optional. */
2100 NULL,
2101 /* Reset notification - optional. */
2102 NULL,
2103 /* Suspend notification - optional. */
2104 vnetSuspend,
2105 /* Resume notification - optional. */
2106 NULL,
2107 /* Attach command - optional. */
2108 vnetAttach,
2109 /* Detach notification - optional. */
2110 vnetDetach,
2111 /* Query a LUN base interface - optional. */
2112 NULL,
2113 /* Init complete notification - optional. */
2114 NULL,
2115 /* Power off notification - optional. */
2116 vnetPowerOff,
2117 /* pfnSoftReset */
2118 NULL,
2119 /* u32VersionEnd */
2120 PDM_DEVREG_VERSION
2121};
2122
2123#endif /* IN_RING3 */
2124#endif /* !VBOX_DEVICE_STRUCT_TESTCASE */
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