VirtualBox

source: vbox/trunk/src/VBox/Devices/Network/DevPCNet.cpp@ 19223

Last change on this file since 19223 was 19113, checked in by vboxsync, 16 years ago

PCNet: handle rare cases were the register content changed when we left the critical section during RX
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1/* $Id: DevPCNet.cpp 19113 2009-04-22 15:04:04Z vboxsync $ */
2/** @file
3 * DevPCNet - AMD PCnet-PCI II / PCnet-FAST III (Am79C970A / Am79C973) Ethernet Controller Emulation.
4 *
5 * This software was written to be compatible with the specifications:
6 * AMD Am79C970A PCnet-PCI II Ethernet Controller Data-Sheet
7 * AMD Publication# 19436 Rev:E Amendment/0 Issue Date: June 2000
8 * and
9 * todo
10 */
11
12/*
13 * Copyright (C) 2006-2008 Sun Microsystems, Inc.
14 *
15 * This file is part of VirtualBox Open Source Edition (OSE), as
16 * available from http://www.virtualbox.org. This file is free software;
17 * you can redistribute it and/or modify it under the terms of the GNU
18 * General Public License (GPL) as published by the Free Software
19 * Foundation, in version 2 as it comes in the "COPYING" file of the
20 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
21 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
22 *
23 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
24 * Clara, CA 95054 USA or visit http://www.sun.com if you need
25 * additional information or have any questions.
26 * --------------------------------------------------------------------
27 *
28 * This code is based on:
29 *
30 * AMD PC-Net II (Am79C970A) emulation
31 *
32 * Copyright (c) 2004 Antony T Curtis
33 *
34 * Permission is hereby granted, free of charge, to any person obtaining a copy
35 * of this software and associated documentation files (the "Software"), to deal
36 * in the Software without restriction, including without limitation the rights
37 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
38 * copies of the Software, and to permit persons to whom the Software is
39 * furnished to do so, subject to the following conditions:
40 *
41 * The above copyright notice and this permission notice shall be included in
42 * all copies or substantial portions of the Software.
43 *
44 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
45 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
46 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
47 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
48 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
49 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
50 * THE SOFTWARE.
51 */
52
53/*******************************************************************************
54* Header Files *
55*******************************************************************************/
56#define LOG_GROUP LOG_GROUP_DEV_PCNET
57#include <VBox/pdmdev.h>
58#include <VBox/pgm.h>
59#include <VBox/vm.h> /* for VM_IS_EMT */
60#include <VBox/DevPCNet.h>
61#include <iprt/asm.h>
62#include <iprt/assert.h>
63#include <iprt/critsect.h>
64#include <iprt/string.h>
65#include <iprt/time.h>
66#include <iprt/net.h>
67#ifdef IN_RING3
68# include <iprt/mem.h>
69# include <iprt/semaphore.h>
70#endif
71
72#include "../Builtins.h"
73
74/* Enable this to catch writes to the ring descriptors instead of using excessive polling */
75/* #define PCNET_NO_POLLING */
76
77/* Enable to handle frequent io reads in the guest context (recommended) */
78#define PCNET_GC_ENABLED
79
80/* Experimental: queue TX packets */
81//#define PCNET_QUEUE_SEND_PACKETS
82
83#if defined(LOG_ENABLED)
84#define PCNET_DEBUG_IO
85#define PCNET_DEBUG_BCR
86#define PCNET_DEBUG_CSR
87#define PCNET_DEBUG_RMD
88#define PCNET_DEBUG_TMD
89#define PCNET_DEBUG_MATCH
90#define PCNET_DEBUG_MII
91#endif
92
93#define PCNET_IOPORT_SIZE 0x20
94#define PCNET_PNPMMIO_SIZE 0x20
95
96#define PCNET_SAVEDSTATE_VERSION 10
97
98#define BCR_MAX_RAP 50
99#define MII_MAX_REG 32
100#define CSR_MAX_REG 128
101
102/* Maximum number of times we report a link down to the guest (failure to send frame) */
103#define PCNET_MAX_LINKDOWN_REPORTED 3
104
105/* Maximum frame size we handle */
106#define MAX_FRAME 1536
107
108
109typedef struct PCNetState_st PCNetState;
110
111struct PCNetState_st
112{
113 PCIDEVICE PciDev;
114#ifndef PCNET_NO_POLLING
115 /** Poll timer - R3. */
116 PTMTIMERR3 pTimerPollR3;
117 /** Poll timer - R0. */
118 PTMTIMERR0 pTimerPollR0;
119 /** Poll timer - RC. */
120 PTMTIMERRC pTimerPollRC;
121#endif
122
123#if HC_ARCH_BITS == 64
124 uint32_t Alignment1;
125#endif
126
127 /** Software Interrupt timer - R3. */
128 PTMTIMERR3 pTimerSoftIntR3;
129 /** Software Interrupt timer - R0. */
130 PTMTIMERR0 pTimerSoftIntR0;
131 /** Software Interrupt timer - RC. */
132 PTMTIMERRC pTimerSoftIntRC;
133
134 /** Register Address Pointer */
135 uint32_t u32RAP;
136 /** Internal interrupt service */
137 int32_t iISR;
138 /** ??? */
139 uint32_t u32Lnkst;
140 /** Address of the RX descriptor table (ring). Loaded at init. */
141 RTGCPHYS32 GCRDRA;
142 /** Address of the TX descriptor table (ring). Loaded at init. */
143 RTGCPHYS32 GCTDRA;
144 uint8_t aPROM[16];
145 uint16_t aCSR[CSR_MAX_REG];
146 uint16_t aBCR[BCR_MAX_RAP];
147 uint16_t aMII[MII_MAX_REG];
148 uint16_t u16CSR0LastSeenByGuest;
149 uint16_t Alignment2[HC_ARCH_BITS == 32 ? 2 : 4];
150 /** Last time we polled the queues */
151 uint64_t u64LastPoll;
152
153 /** Size of current send frame */
154 uint32_t cbSendFrame;
155#if HC_ARCH_BITS == 64
156 uint32_t Alignment3;
157#endif
158 /** Buffer address of current send frame */
159 R3PTRTYPE(uint8_t *) pvSendFrame;
160 /** The xmit buffer. */
161 uint8_t abSendBuf[4096];
162 /** The recv buffer. */
163 uint8_t abRecvBuf[4096];
164
165 /** Pending send packet counter. */
166 uint32_t cPendingSends;
167
168 /** Size of a RX/TX descriptor (8 or 16 bytes according to SWSTYLE */
169 int iLog2DescSize;
170 /** Bits 16..23 in 16-bit mode */
171 RTGCPHYS32 GCUpperPhys;
172
173 /** Transmit signaller - RC. */
174 RCPTRTYPE(PPDMQUEUE) pXmitQueueRC;
175 /** Transmit signaller - R3. */
176 R3PTRTYPE(PPDMQUEUE) pXmitQueueR3;
177 /** Transmit signaller - R0. */
178 R0PTRTYPE(PPDMQUEUE) pXmitQueueR0;
179
180 /** Receive signaller - R3. */
181 R3PTRTYPE(PPDMQUEUE) pCanRxQueueR3;
182 /** Receive signaller - R0. */
183 R0PTRTYPE(PPDMQUEUE) pCanRxQueueR0;
184 /** Receive signaller - RC. */
185 RCPTRTYPE(PPDMQUEUE) pCanRxQueueRC;
186 /** Pointer to the device instance - RC. */
187 PPDMDEVINSRC pDevInsRC;
188 /** Pointer to the device instance - R3. */
189 PPDMDEVINSR3 pDevInsR3;
190 /** Pointer to the device instance - R0. */
191 PPDMDEVINSR0 pDevInsR0;
192 /** Restore timer.
193 * This is used to disconnect and reconnect the link after a restore. */
194 PTMTIMERR3 pTimerRestore;
195 /** Pointer to the connector of the attached network driver. */
196 R3PTRTYPE(PPDMINETWORKCONNECTOR) pDrv;
197 /** Pointer to the attached network driver. */
198 R3PTRTYPE(PPDMIBASE) pDrvBase;
199 /** The base interface. */
200 PDMIBASE IBase;
201 /** The network port interface. */
202 PDMINETWORKPORT INetworkPort;
203 /** The network config port interface. */
204 PDMINETWORKCONFIG INetworkConfig;
205 /** Base address of the MMIO region. */
206 RTGCPHYS32 MMIOBase;
207 /** Base port of the I/O space region. */
208 RTIOPORT IOPortBase;
209 /** If set the link is currently up. */
210 bool fLinkUp;
211 /** If set the link is temporarily down because of a saved state load. */
212 bool fLinkTempDown;
213
214 /** Number of times we've reported the link down. */
215 RTUINT cLinkDownReported;
216 /** The configured MAC address. */
217 RTMAC MacConfigured;
218 /** Alignment padding. */
219 uint8_t Alignment4[HC_ARCH_BITS == 64 ? 6 : 2];
220
221 /** The LED. */
222 PDMLED Led;
223 /** The LED ports. */
224 PDMILEDPORTS ILeds;
225 /** Partner of ILeds. */
226 R3PTRTYPE(PPDMILEDCONNECTORS) pLedsConnector;
227
228 /** Async send thread */
229 RTSEMEVENT hSendEventSem;
230 /** The Async send thread. */
231 PPDMTHREAD pSendThread;
232
233 /** Access critical section. */
234 PDMCRITSECT CritSect;
235 /** Event semaphore for blocking on receive. */
236 RTSEMEVENT hEventOutOfRxSpace;
237 /** We are waiting/about to start waiting for more receive buffers. */
238 bool volatile fMaybeOutOfSpace;
239 /** True if we signal the guest that RX packets are missing. */
240 bool fSignalRxMiss;
241 uint8_t Alignment5[HC_ARCH_BITS == 64 ? 6 : 2];
242
243#ifdef PCNET_NO_POLLING
244 RTGCPHYS32 TDRAPhysOld;
245 uint32_t cbTDRAOld;
246
247 RTGCPHYS32 RDRAPhysOld;
248 uint32_t cbRDRAOld;
249
250 DECLRCCALLBACKMEMBER(int, pfnEMInterpretInstructionRC, (PVM pVM, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, uint32_t *pcbSize));
251 DECLR0CALLBACKMEMBER(int, pfnEMInterpretInstructionR0, (PVM pVM, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, uint32_t *pcbSize));
252#endif
253
254 /** The shared memory used for the private interface - R3. */
255 R3PTRTYPE(PPCNETGUESTSHAREDMEMORY) pSharedMMIOR3;
256 /** The shared memory used for the private interface - R0. */
257 R0PTRTYPE(PPCNETGUESTSHAREDMEMORY) pSharedMMIOR0;
258 /** The shared memory used for the private interface - RC. */
259 RCPTRTYPE(PPCNETGUESTSHAREDMEMORY) pSharedMMIORC;
260
261#if HC_ARCH_BITS == 64
262 uint32_t Alignment6;
263#endif
264
265 /** True if host and guest admitted to use the private interface. */
266 bool fPrivIfEnabled;
267 bool fGCEnabled;
268 bool fR0Enabled;
269 bool fAm79C973;
270 uint32_t u32LinkSpeed;
271
272#ifdef PCNET_QUEUE_SEND_PACKETS
273# define PCNET_MAX_XMIT_SLOTS 128
274# define PCNET_MAX_XMIT_SLOTS_MASK (PCNET_MAX_XMIT_SLOTS - 1)
275
276 uint32_t iXmitRingBufProd;
277 uint32_t iXmitRingBufCons;
278 /** @todo XXX currently atomic operations on this variable are overkill */
279 volatile int32_t cXmitRingBufPending;
280 uint16_t cbXmitRingBuffer[PCNET_MAX_XMIT_SLOTS];
281 R3PTRTYPE(uint8_t *) apXmitRingBuffer[PCNET_MAX_XMIT_SLOTS];
282#endif
283
284 STAMCOUNTER StatReceiveBytes;
285 STAMCOUNTER StatTransmitBytes;
286#ifdef VBOX_WITH_STATISTICS
287 STAMPROFILEADV StatMMIOReadGC;
288 STAMPROFILEADV StatMMIOReadHC;
289 STAMPROFILEADV StatMMIOWriteGC;
290 STAMPROFILEADV StatMMIOWriteHC;
291 STAMPROFILEADV StatAPROMRead;
292 STAMPROFILEADV StatAPROMWrite;
293 STAMPROFILEADV StatIOReadGC;
294 STAMPROFILEADV StatIOReadHC;
295 STAMPROFILEADV StatIOWriteGC;
296 STAMPROFILEADV StatIOWriteHC;
297 STAMPROFILEADV StatTimer;
298 STAMPROFILEADV StatReceive;
299 STAMPROFILEADV StatTransmit;
300 STAMPROFILEADV StatTransmitSend;
301 STAMPROFILEADV StatTdtePollGC;
302 STAMPROFILEADV StatTdtePollHC;
303 STAMPROFILEADV StatTmdStoreGC;
304 STAMPROFILEADV StatTmdStoreHC;
305 STAMPROFILEADV StatRdtePollGC;
306 STAMPROFILEADV StatRdtePollHC;
307 STAMPROFILE StatRxOverflow;
308 STAMCOUNTER StatRxOverflowWakeup;
309 STAMCOUNTER aStatXmitFlush[16];
310 STAMCOUNTER aStatXmitChainCounts[16];
311 STAMCOUNTER StatXmitSkipCurrent;
312 STAMPROFILEADV StatInterrupt;
313 STAMPROFILEADV StatPollTimer;
314 STAMCOUNTER StatMIIReads;
315# ifdef PCNET_NO_POLLING
316 STAMCOUNTER StatRCVRingWrite;
317 STAMCOUNTER StatTXRingWrite;
318 STAMCOUNTER StatRingWriteHC;
319 STAMCOUNTER StatRingWriteR0;
320 STAMCOUNTER StatRingWriteGC;
321
322 STAMCOUNTER StatRingWriteFailedHC;
323 STAMCOUNTER StatRingWriteFailedR0;
324 STAMCOUNTER StatRingWriteFailedGC;
325
326 STAMCOUNTER StatRingWriteOutsideHC;
327 STAMCOUNTER StatRingWriteOutsideR0;
328 STAMCOUNTER StatRingWriteOutsideGC;
329# endif
330#endif /* VBOX_WITH_STATISTICS */
331};
332
333#define PCNETSTATE_2_DEVINS(pPCNet) ((pPCNet)->CTX_SUFF(pDevIns))
334#define PCIDEV_2_PCNETSTATE(pPciDev) ((PCNetState *)(pPciDev))
335#define PCNET_INST_NR (PCNETSTATE_2_DEVINS(pThis)->iInstance)
336
337/* BUS CONFIGURATION REGISTERS */
338#define BCR_MSRDA 0
339#define BCR_MSWRA 1
340#define BCR_MC 2
341#define BCR_RESERVED3 3
342#define BCR_LNKST 4
343#define BCR_LED1 5
344#define BCR_LED2 6
345#define BCR_LED3 7
346#define BCR_RESERVED8 8
347#define BCR_FDC 9
348/* 10 - 15 = reserved */
349#define BCR_IOBASEL 16 /* Reserved */
350#define BCR_IOBASEU 16 /* Reserved */
351#define BCR_BSBC 18
352#define BCR_EECAS 19
353#define BCR_SWS 20
354#define BCR_INTCON 21 /* Reserved */
355#define BCR_PLAT 22
356#define BCR_PCISVID 23
357#define BCR_PCISID 24
358#define BCR_SRAMSIZ 25
359#define BCR_SRAMB 26
360#define BCR_SRAMIC 27
361#define BCR_EBADDRL 28
362#define BCR_EBADDRU 29
363#define BCR_EBD 30
364#define BCR_STVAL 31
365#define BCR_MIICAS 32
366#define BCR_MIIADDR 33
367#define BCR_MIIMDR 34
368#define BCR_PCIVID 35
369#define BCR_PMC_A 36
370#define BCR_DATA0 37
371#define BCR_DATA1 38
372#define BCR_DATA2 39
373#define BCR_DATA3 40
374#define BCR_DATA4 41
375#define BCR_DATA5 42
376#define BCR_DATA6 43
377#define BCR_DATA7 44
378#define BCR_PMR1 45
379#define BCR_PMR2 46
380#define BCR_PMR3 47
381
382#define BCR_DWIO(S) !!((S)->aBCR[BCR_BSBC] & 0x0080)
383#define BCR_SSIZE32(S) !!((S)->aBCR[BCR_SWS ] & 0x0100)
384#define BCR_SWSTYLE(S) ((S)->aBCR[BCR_SWS ] & 0x00FF)
385
386#define CSR_INIT(S) !!((S)->aCSR[0] & 0x0001) /**< Init assertion */
387#define CSR_STRT(S) !!((S)->aCSR[0] & 0x0002) /**< Start assertion */
388#define CSR_STOP(S) !!((S)->aCSR[0] & 0x0004) /**< Stop assertion */
389#define CSR_TDMD(S) !!((S)->aCSR[0] & 0x0008) /**< Transmit demand. (perform xmit poll now (readable, settable, not clearable) */
390#define CSR_TXON(S) !!((S)->aCSR[0] & 0x0010) /**< Transmit on (readonly) */
391#define CSR_RXON(S) !!((S)->aCSR[0] & 0x0020) /**< Receive On */
392#define CSR_INEA(S) !!((S)->aCSR[0] & 0x0040) /**< Interrupt Enable */
393#define CSR_LAPPEN(S) !!((S)->aCSR[3] & 0x0020) /**< Look Ahead Packet Processing Enable */
394#define CSR_DXSUFLO(S) !!((S)->aCSR[3] & 0x0040) /**< Disable Transmit Stop on Underflow error */
395#define CSR_ASTRP_RCV(S) !!((S)->aCSR[4] & 0x0400) /**< Auto Strip Receive */
396#define CSR_DPOLL(S) !!((S)->aCSR[4] & 0x1000) /**< Disable Transmit Polling */
397#define CSR_SPND(S) !!((S)->aCSR[5] & 0x0001) /**< Suspend */
398#define CSR_LTINTEN(S) !!((S)->aCSR[5] & 0x4000) /**< Last Transmit Interrupt Enable */
399#define CSR_TOKINTD(S) !!((S)->aCSR[5] & 0x8000) /**< Transmit OK Interrupt Disable */
400
401#define CSR_STINT !!((S)->aCSR[7] & 0x0800) /**< Software Timer Interrupt */
402#define CSR_STINTE !!((S)->aCSR[7] & 0x0400) /**< Software Timer Interrupt Enable */
403
404#define CSR_DRX(S) !!((S)->aCSR[15] & 0x0001) /**< Disable Receiver */
405#define CSR_DTX(S) !!((S)->aCSR[15] & 0x0002) /**< Disable Transmit */
406#define CSR_LOOP(S) !!((S)->aCSR[15] & 0x0004) /**< Loopback Enable */
407#define CSR_DRCVPA(S) !!((S)->aCSR[15] & 0x2000) /**< Disable Receive Physical Address */
408#define CSR_DRCVBC(S) !!((S)->aCSR[15] & 0x4000) /**< Disable Receive Broadcast */
409#define CSR_PROM(S) !!((S)->aCSR[15] & 0x8000) /**< Promiscuous Mode */
410
411#if !defined(RT_ARCH_X86) && !defined(RT_ARCH_AMD64)
412#error fix macros (and more in this file) for big-endian machines
413#endif
414
415#define CSR_IADR(S) (*(uint32_t*)((S)->aCSR + 1)) /**< Initialization Block Address */
416#define CSR_CRBA(S) (*(uint32_t*)((S)->aCSR + 18)) /**< Current Receive Buffer Address */
417#define CSR_CXBA(S) (*(uint32_t*)((S)->aCSR + 20)) /**< Current Transmit Buffer Address */
418#define CSR_NRBA(S) (*(uint32_t*)((S)->aCSR + 22)) /**< Next Receive Buffer Address */
419#define CSR_BADR(S) (*(uint32_t*)((S)->aCSR + 24)) /**< Base Address of Receive Ring */
420#define CSR_NRDA(S) (*(uint32_t*)((S)->aCSR + 26)) /**< Next Receive Descriptor Address */
421#define CSR_CRDA(S) (*(uint32_t*)((S)->aCSR + 28)) /**< Current Receive Descriptor Address */
422#define CSR_BADX(S) (*(uint32_t*)((S)->aCSR + 30)) /**< Base Address of Transmit Descriptor */
423#define CSR_NXDA(S) (*(uint32_t*)((S)->aCSR + 32)) /**< Next Transmit Descriptor Address */
424#define CSR_CXDA(S) (*(uint32_t*)((S)->aCSR + 34)) /**< Current Transmit Descriptor Address */
425#define CSR_NNRD(S) (*(uint32_t*)((S)->aCSR + 36)) /**< Next Next Receive Descriptor Address */
426#define CSR_NNXD(S) (*(uint32_t*)((S)->aCSR + 38)) /**< Next Next Transmit Descriptor Address */
427#define CSR_CRBC(S) ((S)->aCSR[40]) /**< Current Receive Byte Count */
428#define CSR_CRST(S) ((S)->aCSR[41]) /**< Current Receive Status */
429#define CSR_CXBC(S) ((S)->aCSR[42]) /**< Current Transmit Byte Count */
430#define CSR_CXST(S) ((S)->aCSR[43]) /**< Current transmit status */
431#define CSR_NRBC(S) ((S)->aCSR[44]) /**< Next Receive Byte Count */
432#define CSR_NRST(S) ((S)->aCSR[45]) /**< Next Receive Status */
433#define CSR_POLL(S) ((S)->aCSR[46]) /**< Transmit Poll Time Counter */
434#define CSR_PINT(S) ((S)->aCSR[47]) /**< Transmit Polling Interval */
435#define CSR_PXDA(S) (*(uint32_t*)((S)->aCSR + 60)) /**< Previous Transmit Descriptor Address*/
436#define CSR_PXBC(S) ((S)->aCSR[62]) /**< Previous Transmit Byte Count */
437#define CSR_PXST(S) ((S)->aCSR[63]) /**< Previous Transmit Status */
438#define CSR_NXBA(S) (*(uint32_t*)((S)->aCSR + 64)) /**< Next Transmit Buffer Address */
439#define CSR_NXBC(S) ((S)->aCSR[66]) /**< Next Transmit Byte Count */
440#define CSR_NXST(S) ((S)->aCSR[67]) /**< Next Transmit Status */
441#define CSR_RCVRC(S) ((S)->aCSR[72]) /**< Receive Descriptor Ring Counter */
442#define CSR_XMTRC(S) ((S)->aCSR[74]) /**< Transmit Descriptor Ring Counter */
443#define CSR_RCVRL(S) ((S)->aCSR[76]) /**< Receive Descriptor Ring Length */
444#define CSR_XMTRL(S) ((S)->aCSR[78]) /**< Transmit Descriptor Ring Length */
445#define CSR_MISSC(S) ((S)->aCSR[112]) /**< Missed Frame Count */
446
447#define PHYSADDR(S,A) ((A) | (S)->GCUpperPhys)
448
449/* Version for the PCnet/FAST III 79C973 card */
450#define CSR_VERSION_LOW_79C973 0x5003 /* the lower two bits must be 11b for AMD */
451#define CSR_VERSION_LOW_79C970A 0x1003 /* the lower two bits must be 11b for AMD */
452#define CSR_VERSION_HIGH 0x0262
453
454/** @todo All structs: big endian? */
455
456struct INITBLK16
457{
458 uint16_t mode; /**< copied into csr15 */
459 uint16_t padr1; /**< MAC 0..15 */
460 uint16_t padr2; /**< MAC 16..32 */
461 uint16_t padr3; /**< MAC 33..47 */
462 uint16_t ladrf1; /**< logical address filter 0..15 */
463 uint16_t ladrf2; /**< logical address filter 16..31 */
464 uint16_t ladrf3; /**< logical address filter 32..47 */
465 uint16_t ladrf4; /**< logical address filter 48..63 */
466 uint32_t rdra:24; /**< address of receive descriptor ring */
467 uint32_t res1:5; /**< reserved */
468 uint32_t rlen:3; /**< number of receive descriptor ring entries */
469 uint32_t tdra:24; /**< address of transmit descriptor ring */
470 uint32_t res2:5; /**< reserved */
471 uint32_t tlen:3; /**< number of transmit descriptor ring entries */
472};
473AssertCompileSize(INITBLK16, 24);
474
475/** bird: I've changed the type for the bitfields. They should only be 16-bit all together.
476 * frank: I've changed the bitfiled types to uint32_t to prevent compiler warnings. */
477struct INITBLK32
478{
479 uint16_t mode; /**< copied into csr15 */
480 uint16_t res1:4; /**< reserved */
481 uint16_t rlen:4; /**< number of receive descriptor ring entries */
482 uint16_t res2:4; /**< reserved */
483 uint16_t tlen:4; /**< number of transmit descriptor ring entries */
484 uint16_t padr1; /**< MAC 0..15 */
485 uint16_t padr2; /**< MAC 16..31 */
486 uint16_t padr3; /**< MAC 32..47 */
487 uint16_t res3; /**< reserved */
488 uint16_t ladrf1; /**< logical address filter 0..15 */
489 uint16_t ladrf2; /**< logical address filter 16..31 */
490 uint16_t ladrf3; /**< logibal address filter 32..47 */
491 uint16_t ladrf4; /**< logical address filter 48..63 */
492 uint32_t rdra; /**< address of receive descriptor ring */
493 uint32_t tdra; /**< address of transmit descriptor ring */
494};
495AssertCompileSize(INITBLK32, 28);
496
497/** Transmit Message Descriptor */
498typedef struct TMD
499{
500 struct
501 {
502 uint32_t tbadr; /**< transmit buffer address */
503 } tmd0;
504 struct
505 {
506 uint32_t bcnt:12; /**< buffer byte count (two's complement) */
507 uint32_t ones:4; /**< must be 1111b */
508 uint32_t res:7; /**< reserved */
509 uint32_t bpe:1; /**< bus parity error */
510 uint32_t enp:1; /**< end of packet */
511 uint32_t stp:1; /**< start of packet */
512 uint32_t def:1; /**< deferred */
513 uint32_t one:1; /**< exactly one retry was needed to transmit a frame */
514 uint32_t ltint:1; /**< suppress interrupts after successful transmission */
515 uint32_t nofcs:1; /**< when set, the state of DXMTFCS is ignored and
516 transmitter FCS generation is activated. */
517 uint32_t err:1; /**< error occured */
518 uint32_t own:1; /**< 0=owned by guest driver, 1=owned by controller */
519 } tmd1;
520 struct
521 {
522 uint32_t trc:4; /**< transmit retry count */
523 uint32_t res:12; /**< reserved */
524 uint32_t tdr:10; /**< ??? */
525 uint32_t rtry:1; /**< retry error */
526 uint32_t lcar:1; /**< loss of carrier */
527 uint32_t lcol:1; /**< late collision */
528 uint32_t exdef:1; /**< excessive deferral */
529 uint32_t uflo:1; /**< underflow error */
530 uint32_t buff:1; /**< out of buffers (ENP not found) */
531 } tmd2;
532 struct
533 {
534 uint32_t res; /**< reserved for user defined space */
535 } tmd3;
536} TMD;
537AssertCompileSize(TMD, 16);
538
539/** Receive Message Descriptor */
540typedef struct RMD
541{
542 struct
543 {
544 uint32_t rbadr; /**< receive buffer address */
545 } rmd0;
546 struct
547 {
548 uint32_t bcnt:12; /**< buffer byte count (two's complement) */
549 uint32_t ones:4; /**< must be 1111b */
550 uint32_t res:4; /**< reserved */
551 uint32_t bam:1; /**< broadcast address match */
552 uint32_t lafm:1; /**< logical filter address match */
553 uint32_t pam:1; /**< physcial address match */
554 uint32_t bpe:1; /**< bus parity error */
555 uint32_t enp:1; /**< end of packet */
556 uint32_t stp:1; /**< start of packet */
557 uint32_t buff:1; /**< buffer error */
558 uint32_t crc:1; /**< crc error on incoming frame */
559 uint32_t oflo:1; /**< overflow error (lost all or part of incoming frame) */
560 uint32_t fram:1; /**< frame error */
561 uint32_t err:1; /**< error occured */
562 uint32_t own:1; /**< 0=owned by guest driver, 1=owned by controller */
563 } rmd1;
564 struct
565 {
566 uint32_t mcnt:12; /**< message byte count */
567 uint32_t zeros:4; /**< 0000b */
568 uint32_t rpc:8; /**< receive frame tag */
569 uint32_t rcc:8; /**< receive frame tag + reserved */
570 } rmd2;
571 struct
572 {
573 uint32_t res; /**< reserved for user defined space */
574 } rmd3;
575} RMD;
576AssertCompileSize(RMD, 16);
577
578
579#ifndef VBOX_DEVICE_STRUCT_TESTCASE
580/*******************************************************************************
581* Internal Functions *
582*******************************************************************************/
583#define PRINT_TMD(T) Log2(( \
584 "TMD0 : TBADR=%#010x\n" \
585 "TMD1 : OWN=%d, ERR=%d, FCS=%d, LTI=%d, " \
586 "ONE=%d, DEF=%d, STP=%d, ENP=%d,\n" \
587 " BPE=%d, BCNT=%d\n" \
588 "TMD2 : BUF=%d, UFL=%d, EXD=%d, LCO=%d, " \
589 "LCA=%d, RTR=%d,\n" \
590 " TDR=%d, TRC=%d\n", \
591 (T)->tmd0.tbadr, \
592 (T)->tmd1.own, (T)->tmd1.err, (T)->tmd1.nofcs, \
593 (T)->tmd1.ltint, (T)->tmd1.one, (T)->tmd1.def, \
594 (T)->tmd1.stp, (T)->tmd1.enp, (T)->tmd1.bpe, \
595 4096-(T)->tmd1.bcnt, \
596 (T)->tmd2.buff, (T)->tmd2.uflo, (T)->tmd2.exdef,\
597 (T)->tmd2.lcol, (T)->tmd2.lcar, (T)->tmd2.rtry, \
598 (T)->tmd2.tdr, (T)->tmd2.trc))
599
600#define PRINT_RMD(R) Log2(( \
601 "RMD0 : RBADR=%#010x\n" \
602 "RMD1 : OWN=%d, ERR=%d, FRAM=%d, OFLO=%d, " \
603 "CRC=%d, BUFF=%d, STP=%d, ENP=%d,\n " \
604 "BPE=%d, PAM=%d, LAFM=%d, BAM=%d, ONES=%d, BCNT=%d\n" \
605 "RMD2 : RCC=%d, RPC=%d, MCNT=%d, ZEROS=%d\n", \
606 (R)->rmd0.rbadr, \
607 (R)->rmd1.own, (R)->rmd1.err, (R)->rmd1.fram, \
608 (R)->rmd1.oflo, (R)->rmd1.crc, (R)->rmd1.buff, \
609 (R)->rmd1.stp, (R)->rmd1.enp, (R)->rmd1.bpe, \
610 (R)->rmd1.pam, (R)->rmd1.lafm, (R)->rmd1.bam, \
611 (R)->rmd1.ones, 4096-(R)->rmd1.bcnt, \
612 (R)->rmd2.rcc, (R)->rmd2.rpc, (R)->rmd2.mcnt, \
613 (R)->rmd2.zeros))
614
615#if defined(PCNET_QUEUE_SEND_PACKETS) && defined(IN_RING3)
616static int pcnetSyncTransmit(PCNetState *pThis);
617#endif
618static void pcnetPollTimerStart(PCNetState *pThis);
619
620/**
621 * Load transmit message descriptor
622 * Make sure we read the own flag first.
623 *
624 * @param pThis adapter private data
625 * @param addr physical address of the descriptor
626 * @param fRetIfNotOwn return immediately after reading the own flag if we don't own the descriptor
627 * @return true if we own the descriptor, false otherwise
628 */
629DECLINLINE(bool) pcnetTmdLoad(PCNetState *pThis, TMD *tmd, RTGCPHYS32 addr, bool fRetIfNotOwn)
630{
631 PPDMDEVINS pDevIns = PCNETSTATE_2_DEVINS(pThis);
632 uint8_t ownbyte;
633
634 if (pThis->fPrivIfEnabled)
635 {
636 /* RX/TX descriptors shared between host and guest => direct copy */
637 uint8_t *pv = (uint8_t*)pThis->CTX_SUFF(pSharedMMIO)
638 + (addr - pThis->GCTDRA)
639 + pThis->CTX_SUFF(pSharedMMIO)->V.V1.offTxDescriptors;
640 if (!(pv[7] & 0x80) && fRetIfNotOwn)
641 return false;
642 memcpy(tmd, pv, 16);
643 return true;
644 }
645 else if (RT_UNLIKELY(BCR_SWSTYLE(pThis) == 0))
646 {
647 uint16_t xda[4];
648
649 PDMDevHlpPhysRead(pDevIns, addr+3, &ownbyte, 1);
650 if (!(ownbyte & 0x80) && fRetIfNotOwn)
651 return false;
652 PDMDevHlpPhysRead(pDevIns, addr, (void*)&xda[0], sizeof(xda));
653 ((uint32_t *)tmd)[0] = (uint32_t)xda[0] | ((uint32_t)(xda[1] & 0x00ff) << 16);
654 ((uint32_t *)tmd)[1] = (uint32_t)xda[2] | ((uint32_t)(xda[1] & 0xff00) << 16);
655 ((uint32_t *)tmd)[2] = (uint32_t)xda[3] << 16;
656 ((uint32_t *)tmd)[3] = 0;
657 }
658 else if (RT_LIKELY(BCR_SWSTYLE(pThis) != 3))
659 {
660 PDMDevHlpPhysRead(pDevIns, addr+7, &ownbyte, 1);
661 if (!(ownbyte & 0x80) && fRetIfNotOwn)
662 return false;
663 PDMDevHlpPhysRead(pDevIns, addr, (void*)tmd, 16);
664 }
665 else
666 {
667 uint32_t xda[4];
668 PDMDevHlpPhysRead(pDevIns, addr+7, &ownbyte, 1);
669 if (!(ownbyte & 0x80) && fRetIfNotOwn)
670 return false;
671 PDMDevHlpPhysRead(pDevIns, addr, (void*)&xda[0], sizeof(xda));
672 ((uint32_t *)tmd)[0] = xda[2];
673 ((uint32_t *)tmd)[1] = xda[1];
674 ((uint32_t *)tmd)[2] = xda[0];
675 ((uint32_t *)tmd)[3] = xda[3];
676 }
677 /* Double check the own bit; guest drivers might be buggy and lock prefixes in the recompiler are ignored by other threads. */
678#ifdef DEBUG
679 if (tmd->tmd1.own == 1 && !(ownbyte & 0x80))
680 Log(("pcnetTmdLoad: own bit flipped while reading!!\n"));
681#endif
682 if (!(ownbyte & 0x80))
683 tmd->tmd1.own = 0;
684
685 return !!tmd->tmd1.own;
686}
687
688/**
689 * Store transmit message descriptor and hand it over to the host (the VM guest).
690 * Make sure that all data are transmitted before we clear the own flag.
691 */
692DECLINLINE(void) pcnetTmdStorePassHost(PCNetState *pThis, TMD *tmd, RTGCPHYS32 addr)
693{
694 STAM_PROFILE_ADV_START(&pThis->CTXSUFF(StatTmdStore), a);
695 PPDMDEVINS pDevIns = PCNETSTATE_2_DEVINS(pThis);
696 if (pThis->fPrivIfEnabled)
697 {
698 /* RX/TX descriptors shared between host and guest => direct copy */
699 uint8_t *pv = (uint8_t*)pThis->CTX_SUFF(pSharedMMIO)
700 + (addr - pThis->GCTDRA)
701 + pThis->CTX_SUFF(pSharedMMIO)->V.V1.offTxDescriptors;
702 memcpy(pv, tmd, 16);
703 pv[7] &= ~0x80;
704 }
705 else if (RT_UNLIKELY(BCR_SWSTYLE(pThis) == 0))
706 {
707 uint16_t xda[4];
708 xda[0] = ((uint32_t *)tmd)[0] & 0xffff;
709 xda[1] = ((((uint32_t *)tmd)[0] >> 16) & 0xff) | ((((uint32_t *)tmd)[1]>>16) & 0xff00);
710 xda[2] = ((uint32_t *)tmd)[1] & 0xffff;
711 xda[3] = ((uint32_t *)tmd)[2] >> 16;
712 xda[1] |= 0x8000;
713 PDMDevHlpPhysWrite(pDevIns, addr, (void*)&xda[0], sizeof(xda));
714 xda[1] &= ~0x8000;
715 PDMDevHlpPhysWrite(pDevIns, addr+3, (uint8_t*)xda + 3, 1);
716 }
717 else if (RT_LIKELY(BCR_SWSTYLE(pThis) != 3))
718 {
719 ((uint32_t*)tmd)[1] |= 0x80000000;
720 PDMDevHlpPhysWrite(pDevIns, addr, (void*)tmd, 16);
721 ((uint32_t*)tmd)[1] &= ~0x80000000;
722 PDMDevHlpPhysWrite(pDevIns, addr+7, (uint8_t*)tmd + 7, 1);
723 }
724 else
725 {
726 uint32_t xda[4];
727 xda[0] = ((uint32_t *)tmd)[2];
728 xda[1] = ((uint32_t *)tmd)[1];
729 xda[2] = ((uint32_t *)tmd)[0];
730 xda[3] = ((uint32_t *)tmd)[3];
731 xda[1] |= 0x80000000;
732 PDMDevHlpPhysWrite(pDevIns, addr, (void*)&xda[0], sizeof(xda));
733 xda[1] &= ~0x80000000;
734 PDMDevHlpPhysWrite(pDevIns, addr+7, (uint8_t*)xda + 7, 1);
735 }
736 STAM_PROFILE_ADV_STOP(&pThis->CTXSUFF(StatTmdStore), a);
737}
738
739/**
740 * Load receive message descriptor
741 * Make sure we read the own flag first.
742 *
743 * @param pThis adapter private data
744 * @param addr physical address of the descriptor
745 * @param fRetIfNotOwn return immediately after reading the own flag if we don't own the descriptor
746 * @return true if we own the descriptor, false otherwise
747 */
748DECLINLINE(int) pcnetRmdLoad(PCNetState *pThis, RMD *rmd, RTGCPHYS32 addr, bool fRetIfNotOwn)
749{
750 PPDMDEVINS pDevIns = PCNETSTATE_2_DEVINS(pThis);
751 uint8_t ownbyte;
752
753 if (pThis->fPrivIfEnabled)
754 {
755 /* RX/TX descriptors shared between host and guest => direct copy */
756 uint8_t *pb = (uint8_t*)pThis->CTX_SUFF(pSharedMMIO)
757 + (addr - pThis->GCRDRA)
758 + pThis->CTX_SUFF(pSharedMMIO)->V.V1.offRxDescriptors;
759 if (!(pb[7] & 0x80) && fRetIfNotOwn)
760 return false;
761 memcpy(rmd, pb, 16);
762 return true;
763 }
764 else if (RT_UNLIKELY(BCR_SWSTYLE(pThis) == 0))
765 {
766 uint16_t rda[4];
767 PDMDevHlpPhysRead(pDevIns, addr+3, &ownbyte, 1);
768 if (!(ownbyte & 0x80) && fRetIfNotOwn)
769 return false;
770 PDMDevHlpPhysRead(pDevIns, addr, (void*)&rda[0], sizeof(rda));
771 ((uint32_t *)rmd)[0] = (uint32_t)rda[0] | ((rda[1] & 0x00ff) << 16);
772 ((uint32_t *)rmd)[1] = (uint32_t)rda[2] | ((rda[1] & 0xff00) << 16);
773 ((uint32_t *)rmd)[2] = (uint32_t)rda[3];
774 ((uint32_t *)rmd)[3] = 0;
775 }
776 else if (RT_LIKELY(BCR_SWSTYLE(pThis) != 3))
777 {
778 PDMDevHlpPhysRead(pDevIns, addr+7, &ownbyte, 1);
779 if (!(ownbyte & 0x80) && fRetIfNotOwn)
780 return false;
781 PDMDevHlpPhysRead(pDevIns, addr, (void*)rmd, 16);
782 }
783 else
784 {
785 uint32_t rda[4];
786 PDMDevHlpPhysRead(pDevIns, addr+7, &ownbyte, 1);
787 if (!(ownbyte & 0x80) && fRetIfNotOwn)
788 return false;
789 PDMDevHlpPhysRead(pDevIns, addr, (void*)&rda[0], sizeof(rda));
790 ((uint32_t *)rmd)[0] = rda[2];
791 ((uint32_t *)rmd)[1] = rda[1];
792 ((uint32_t *)rmd)[2] = rda[0];
793 ((uint32_t *)rmd)[3] = rda[3];
794 }
795 /* Double check the own bit; guest drivers might be buggy and lock prefixes in the recompiler are ignored by other threads. */
796#ifdef DEBUG
797 if (rmd->rmd1.own == 1 && !(ownbyte & 0x80))
798 Log(("pcnetRmdLoad: own bit flipped while reading!!\n"));
799#endif
800 if (!(ownbyte & 0x80))
801 rmd->rmd1.own = 0;
802
803 return !!rmd->rmd1.own;
804}
805
806#ifdef IN_RING3
807
808/**
809 * Store receive message descriptor and hand it over to the host (the VM guest).
810 * Make sure that all data are transmitted before we clear the own flag.
811 */
812DECLINLINE(void) pcnetRmdStorePassHost(PCNetState *pThis, RMD *rmd, RTGCPHYS32 addr)
813{
814 PPDMDEVINS pDevIns = PCNETSTATE_2_DEVINS(pThis);
815 if (pThis->fPrivIfEnabled)
816 {
817 /* RX/TX descriptors shared between host and guest => direct copy */
818 uint8_t *pv = (uint8_t*)pThis->CTX_SUFF(pSharedMMIO)
819 + (addr - pThis->GCRDRA)
820 + pThis->CTX_SUFF(pSharedMMIO)->V.V1.offRxDescriptors;
821 memcpy(pv, rmd, 16);
822 pv[7] &= ~0x80;
823 }
824 else if (RT_UNLIKELY(BCR_SWSTYLE(pThis) == 0))
825 {
826 uint16_t rda[4];
827 rda[0] = ((uint32_t *)rmd)[0] & 0xffff;
828 rda[1] = ((((uint32_t *)rmd)[0]>>16) & 0xff) | ((((uint32_t *)rmd)[1]>>16) & 0xff00);
829 rda[2] = ((uint32_t *)rmd)[1] & 0xffff;
830 rda[3] = ((uint32_t *)rmd)[2] & 0xffff;
831 rda[1] |= 0x8000;
832 PDMDevHlpPhysWrite(pDevIns, addr, (void*)&rda[0], sizeof(rda));
833 rda[1] &= ~0x8000;
834 PDMDevHlpPhysWrite(pDevIns, addr+3, (uint8_t*)rda + 3, 1);
835 }
836 else if (RT_LIKELY(BCR_SWSTYLE(pThis) != 3))
837 {
838 ((uint32_t*)rmd)[1] |= 0x80000000;
839 PDMDevHlpPhysWrite(pDevIns, addr, (void*)rmd, 16);
840 ((uint32_t*)rmd)[1] &= ~0x80000000;
841 PDMDevHlpPhysWrite(pDevIns, addr+7, (uint8_t*)rmd + 7, 1);
842 }
843 else
844 {
845 uint32_t rda[4];
846 rda[0] = ((uint32_t *)rmd)[2];
847 rda[1] = ((uint32_t *)rmd)[1];
848 rda[2] = ((uint32_t *)rmd)[0];
849 rda[3] = ((uint32_t *)rmd)[3];
850 rda[1] |= 0x80000000;
851 PDMDevHlpPhysWrite(pDevIns, addr, (void*)&rda[0], sizeof(rda));
852 rda[1] &= ~0x80000000;
853 PDMDevHlpPhysWrite(pDevIns, addr+7, (uint8_t*)rda + 7, 1);
854 }
855}
856
857/**
858 * Read+Write a TX/RX descriptor to prevent PDMDevHlpPhysWrite() allocating
859 * pages later when we shouldn't schedule to EMT. Temporarily hack.
860 */
861static void pcnetDescTouch(PCNetState *pThis, RTGCPHYS32 addr)
862{
863 PPDMDEVINS pDevIns = PCNETSTATE_2_DEVINS(pThis);
864
865 if (!pThis->fPrivIfEnabled)
866 {
867 uint8_t aBuf[16];
868 size_t cbDesc;
869 if (RT_UNLIKELY(BCR_SWSTYLE(pThis) == 0))
870 cbDesc = 8;
871 else
872 cbDesc = 16;
873 PDMDevHlpPhysRead(pDevIns, addr, aBuf, cbDesc);
874 PDMDevHlpPhysWrite(pDevIns, addr, aBuf, cbDesc);
875 }
876}
877
878#endif /* IN_RING3 */
879
880/** Checks if it's a bad (as in invalid) RMD.*/
881#define IS_RMD_BAD(rmd) ((rmd).rmd1.ones != 15 || (rmd).rmd2.zeros != 0)
882
883/** The network card is the owner of the RDTE/TDTE, actually it is this driver */
884#define CARD_IS_OWNER(desc) (((desc) & 0x8000))
885
886/** The host is the owner of the RDTE/TDTE -- actually the VM guest. */
887#define HOST_IS_OWNER(desc) (!((desc) & 0x8000))
888
889#ifndef ETHER_IS_MULTICAST /* Net/Open BSD macro it seems */
890#define ETHER_IS_MULTICAST(a) ((*(uint8_t *)(a)) & 1)
891#endif
892
893#define ETHER_ADDR_LEN ETH_ALEN
894#define ETH_ALEN 6
895#pragma pack(1)
896struct ether_header /** @todo Use RTNETETHERHDR */
897{
898 uint8_t ether_dhost[ETH_ALEN]; /**< destination ethernet address */
899 uint8_t ether_shost[ETH_ALEN]; /**< source ethernet address */
900 uint16_t ether_type; /**< packet type ID field */
901};
902#pragma pack()
903
904#define PRINT_PKTHDR(BUF) do { \
905 struct ether_header *hdr = (struct ether_header *)(BUF); \
906 Log(("#%d packet dhost=%02x:%02x:%02x:%02x:%02x:%02x, " \
907 "shost=%02x:%02x:%02x:%02x:%02x:%02x, " \
908 "type=%#06x (bcast=%d)\n", PCNET_INST_NR, \
909 hdr->ether_dhost[0],hdr->ether_dhost[1],hdr->ether_dhost[2], \
910 hdr->ether_dhost[3],hdr->ether_dhost[4],hdr->ether_dhost[5], \
911 hdr->ether_shost[0],hdr->ether_shost[1],hdr->ether_shost[2], \
912 hdr->ether_shost[3],hdr->ether_shost[4],hdr->ether_shost[5], \
913 htons(hdr->ether_type), \
914 !!ETHER_IS_MULTICAST(hdr->ether_dhost))); \
915} while (0)
916
917
918#ifdef IN_RING3
919
920/**
921 * Initialize the shared memory for the private guest interface.
922 *
923 * @note Changing this layout will break SSM for guests using the private guest interface!
924 */
925static void pcnetInitSharedMemory(PCNetState *pThis)
926{
927 /* Clear the entire block for pcnetReset usage. */
928 memset(pThis->pSharedMMIOR3, 0, PCNET_GUEST_SHARED_MEMORY_SIZE);
929
930 pThis->pSharedMMIOR3->u32Version = PCNET_GUEST_INTERFACE_VERSION;
931 uint32_t off = 2048; /* Leave some space for more fields within the header */
932
933 /*
934 * The Descriptor arrays.
935 */
936 pThis->pSharedMMIOR3->V.V1.offTxDescriptors = off;
937 off = RT_ALIGN(off + PCNET_GUEST_TX_DESCRIPTOR_SIZE * PCNET_GUEST_MAX_TX_DESCRIPTORS, 32);
938
939 pThis->pSharedMMIOR3->V.V1.offRxDescriptors = off;
940 off = RT_ALIGN(off + PCNET_GUEST_RX_DESCRIPTOR_SIZE * PCNET_GUEST_MAX_RX_DESCRIPTORS, 32);
941
942 /* Make sure all the descriptors are mapped into HMA space (and later ring-0). The 8192
943 bytes limit is hardcoded in the PDMDevHlpMMHyperMapMMIO2 call down in pcnetConstruct. */
944 AssertRelease(off <= 8192);
945
946 /*
947 * The buffer arrays.
948 */
949#if 0
950 /* Don't allocate TX buffers since Windows guests cannot use it */
951 pThis->pSharedMMIOR3->V.V1.offTxBuffers = off;
952 off = RT_ALIGN(off + PCNET_GUEST_NIC_BUFFER_SIZE * PCNET_GUEST_MAX_TX_DESCRIPTORS, 32);
953#endif
954
955 pThis->pSharedMMIOR3->V.V1.offRxBuffers = off;
956 pThis->pSharedMMIOR3->fFlags = PCNET_GUEST_FLAGS_ADMIT_HOST;
957 off = RT_ALIGN(off + PCNET_GUEST_NIC_BUFFER_SIZE * PCNET_GUEST_MAX_RX_DESCRIPTORS, 32);
958 AssertRelease(off <= PCNET_GUEST_SHARED_MEMORY_SIZE);
959
960 /* Update the header with the final size. */
961 pThis->pSharedMMIOR3->cbUsed = off;
962}
963
964#define MULTICAST_FILTER_LEN 8
965
966DECLINLINE(uint32_t) lnc_mchash(const uint8_t *ether_addr)
967{
968#define LNC_POLYNOMIAL 0xEDB88320UL
969 uint32_t crc = 0xFFFFFFFF;
970 int idx, bit;
971 uint8_t data;
972
973 for (idx = 0; idx < ETHER_ADDR_LEN; idx++)
974 {
975 for (data = *ether_addr++, bit = 0; bit < MULTICAST_FILTER_LEN; bit++)
976 {
977 crc = (crc >> 1) ^ (((crc ^ data) & 1) ? LNC_POLYNOMIAL : 0);
978 data >>= 1;
979 }
980 }
981 return crc;
982#undef LNC_POLYNOMIAL
983}
984
985#define CRC(crc, ch) (crc = (crc >> 8) ^ crctab[(crc ^ (ch)) & 0xff])
986
987/* generated using the AUTODIN II polynomial
988 * x^32 + x^26 + x^23 + x^22 + x^16 +
989 * x^12 + x^11 + x^10 + x^8 + x^7 + x^5 + x^4 + x^2 + x^1 + 1
990 */
991static const uint32_t crctab[256] =
992{
993 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba,
994 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
995 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
996 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
997 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
998 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
999 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,
1000 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
1001 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
1002 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
1003 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940,
1004 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
1005 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116,
1006 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
1007 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
1008 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
1009 0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a,
1010 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
1011 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818,
1012 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
1013 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
1014 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
1015 0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c,
1016 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
1017 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
1018 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
1019 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
1020 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
1021 0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086,
1022 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
1023 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4,
1024 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
1025 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
1026 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
1027 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
1028 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
1029 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe,
1030 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
1031 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
1032 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
1033 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252,
1034 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
1035 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60,
1036 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
1037 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
1038 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
1039 0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04,
1040 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
1041 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a,
1042 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
1043 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
1044 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
1045 0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e,
1046 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
1047 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
1048 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
1049 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
1050 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
1051 0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0,
1052 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
1053 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6,
1054 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
1055 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
1056 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d,
1057};
1058
1059DECLINLINE(int) padr_match(PCNetState *pThis, const uint8_t *buf, size_t size)
1060{
1061 struct ether_header *hdr = (struct ether_header *)buf;
1062 int result;
1063#if (defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64)) && !defined(PCNET_DEBUG_MATCH)
1064 result = !CSR_DRCVPA(pThis) && !memcmp(hdr->ether_dhost, pThis->aCSR + 12, 6);
1065#else
1066 uint8_t padr[6];
1067 padr[0] = pThis->aCSR[12] & 0xff;
1068 padr[1] = pThis->aCSR[12] >> 8;
1069 padr[2] = pThis->aCSR[13] & 0xff;
1070 padr[3] = pThis->aCSR[13] >> 8;
1071 padr[4] = pThis->aCSR[14] & 0xff;
1072 padr[5] = pThis->aCSR[14] >> 8;
1073 result = !CSR_DRCVPA(pThis) && !memcmp(hdr->ether_dhost, padr, 6);
1074#endif
1075
1076#ifdef PCNET_DEBUG_MATCH
1077 Log(("#%d packet dhost=%02x:%02x:%02x:%02x:%02x:%02x, "
1078 "padr=%02x:%02x:%02x:%02x:%02x:%02x => %d\n", PCNET_INST_NR,
1079 hdr->ether_dhost[0],hdr->ether_dhost[1],hdr->ether_dhost[2],
1080 hdr->ether_dhost[3],hdr->ether_dhost[4],hdr->ether_dhost[5],
1081 padr[0],padr[1],padr[2],padr[3],padr[4],padr[5], result));
1082#endif
1083 return result;
1084}
1085
1086DECLINLINE(int) padr_bcast(PCNetState *pThis, const uint8_t *buf, size_t size)
1087{
1088 static uint8_t aBCAST[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1089 struct ether_header *hdr = (struct ether_header *)buf;
1090 int result = !CSR_DRCVBC(pThis) && !memcmp(hdr->ether_dhost, aBCAST, 6);
1091#ifdef PCNET_DEBUG_MATCH
1092 Log(("#%d padr_bcast result=%d\n", PCNET_INST_NR, result));
1093#endif
1094 return result;
1095}
1096
1097static int ladr_match(PCNetState *pThis, const uint8_t *buf, size_t size)
1098{
1099 struct ether_header *hdr = (struct ether_header *)buf;
1100 if (RT_UNLIKELY(hdr->ether_dhost[0] & 0x01) && ((uint64_t *)&pThis->aCSR[8])[0] != 0LL)
1101 {
1102 int index;
1103#if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64)
1104 index = lnc_mchash(hdr->ether_dhost) >> 26;
1105 return ((uint8_t*)(pThis->aCSR + 8))[index >> 3] & (1 << (index & 7));
1106#else
1107 uint8_t ladr[8];
1108 ladr[0] = pThis->aCSR[8] & 0xff;
1109 ladr[1] = pThis->aCSR[8] >> 8;
1110 ladr[2] = pThis->aCSR[9] & 0xff;
1111 ladr[3] = pThis->aCSR[9] >> 8;
1112 ladr[4] = pThis->aCSR[10] & 0xff;
1113 ladr[5] = pThis->aCSR[10] >> 8;
1114 ladr[6] = pThis->aCSR[11] & 0xff;
1115 ladr[7] = pThis->aCSR[11] >> 8;
1116 index = lnc_mchash(hdr->ether_dhost) >> 26;
1117 return (ladr[index >> 3] & (1 << (index & 7)));
1118#endif
1119 }
1120 return 0;
1121}
1122
1123#endif /* IN_RING3 */
1124
1125/**
1126 * Get the receive descriptor ring address with a given index.
1127 */
1128DECLINLINE(RTGCPHYS32) pcnetRdraAddr(PCNetState *pThis, int idx)
1129{
1130 return pThis->GCRDRA + ((CSR_RCVRL(pThis) - idx) << pThis->iLog2DescSize);
1131}
1132
1133/**
1134 * Get the transmit descriptor ring address with a given index.
1135 */
1136DECLINLINE(RTGCPHYS32) pcnetTdraAddr(PCNetState *pThis, int idx)
1137{
1138 return pThis->GCTDRA + ((CSR_XMTRL(pThis) - idx) << pThis->iLog2DescSize);
1139}
1140
1141__BEGIN_DECLS
1142PDMBOTHCBDECL(int) pcnetIOPortRead(PPDMDEVINS pDevIns, void *pvUser,
1143 RTIOPORT Port, uint32_t *pu32, unsigned cb);
1144PDMBOTHCBDECL(int) pcnetIOPortWrite(PPDMDEVINS pDevIns, void *pvUser,
1145 RTIOPORT Port, uint32_t u32, unsigned cb);
1146PDMBOTHCBDECL(int) pcnetIOPortAPromWrite(PPDMDEVINS pDevIns, void *pvUser,
1147 RTIOPORT Port, uint32_t u32, unsigned cb);
1148PDMBOTHCBDECL(int) pcnetIOPortAPromRead(PPDMDEVINS pDevIns, void *pvUser,
1149 RTIOPORT Port, uint32_t *pu32, unsigned cb);
1150PDMBOTHCBDECL(int) pcnetMMIORead(PPDMDEVINS pDevIns, void *pvUser,
1151 RTGCPHYS GCPhysAddr, void *pv, unsigned cb);
1152PDMBOTHCBDECL(int) pcnetMMIOWrite(PPDMDEVINS pDevIns, void *pvUser,
1153 RTGCPHYS GCPhysAddr, void *pv, unsigned cb);
1154#ifndef IN_RING3
1155DECLEXPORT(int) pcnetHandleRingWrite(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame,
1156 RTGCPTR pvFault, RTGCPHYS GCPhysFault, void *pvUser);
1157#endif
1158__END_DECLS
1159
1160#undef htonl
1161#define htonl(x) ASMByteSwapU32(x)
1162#undef htons
1163#define htons(x) ( (((x) & 0xff00) >> 8) | (((x) & 0x00ff) << 8) )
1164
1165static void pcnetPollRxTx(PCNetState *pThis);
1166static void pcnetPollTimer(PCNetState *pThis);
1167static void pcnetUpdateIrq(PCNetState *pThis);
1168static uint32_t pcnetBCRReadU16(PCNetState *pThis, uint32_t u32RAP);
1169static int pcnetBCRWriteU16(PCNetState *pThis, uint32_t u32RAP, uint32_t val);
1170
1171
1172#ifdef PCNET_NO_POLLING
1173# ifndef IN_RING3
1174
1175/**
1176 * #PF Virtual Handler callback for Guest write access to the ring descriptor page(pThis)
1177 *
1178 * @return VBox status code (appropriate for trap handling and GC return).
1179 * @param pVM VM Handle.
1180 * @param uErrorCode CPU Error code.
1181 * @param pRegFrame Trap register frame.
1182 * @param pvFault The fault address (cr2).
1183 * @param GCPhysFault The GC physical address corresponding to pvFault.
1184 * @param pvUser User argument.
1185 */
1186DECLEXPORT(int) pcnetHandleRingWrite(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame,
1187 RTGCPTR pvFault, RTGCPHYS GCPhysFault, void *pvUser)
1188{
1189 PCNetState *pThis = (PCNetState *)pvUser;
1190
1191 Log(("#%d pcnetHandleRingWriteGC: write to %#010x\n", PCNET_INST_NR, GCPhysFault));
1192
1193 uint32_t cb;
1194 int rc = CTXALLSUFF(pThis->pfnEMInterpretInstruction)(pVM, pRegFrame, pvFault, &cb);
1195 if (RT_SUCCESS(rc) && cb)
1196 {
1197 if ( (GCPhysFault >= pThis->GCTDRA && GCPhysFault + cb < pcnetTdraAddr(pThis, 0))
1198#ifdef PCNET_MONITOR_RECEIVE_RING
1199 || (GCPhysFault >= pThis->GCRDRA && GCPhysFault + cb < pcnetRdraAddr(pThis, 0))
1200#endif
1201 )
1202 {
1203 uint32_t offsetTDRA = (GCPhysFault - pThis->GCTDRA);
1204
1205 int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
1206 if (RT_SUCCESS(rc))
1207 {
1208 STAM_COUNTER_INC(&CTXALLSUFF(pThis->StatRingWrite)); ;
1209
1210 /* Check if we can do something now */
1211 pcnetPollRxTx(pThis);
1212 pcnetUpdateIrq(pThis);
1213
1214 PDMCritSectLeave(&pThis->CritSect);
1215 return VINF_SUCCESS;
1216 }
1217 }
1218 else
1219 {
1220 STAM_COUNTER_INC(&CTXALLSUFF(pThis->StatRingWriteOutside)); ;
1221 return VINF_SUCCESS; /* outside of the ring range */
1222 }
1223 }
1224 STAM_COUNTER_INC(&CTXALLSUFF(pThis->StatRingWriteFailed)); ;
1225 return VINF_IOM_HC_MMIO_WRITE; /* handle in ring3 */
1226}
1227
1228# else /* IN_RING3 */
1229
1230/**
1231 * #PF Handler callback for physical access handler ranges (MMIO among others) in HC.
1232 *
1233 * The handler can not raise any faults, it's mainly for monitoring write access
1234 * to certain pages.
1235 *
1236 * @returns VINF_SUCCESS if the handler have carried out the operation.
1237 * @returns VINF_PGM_HANDLER_DO_DEFAULT if the caller should carry out the access operation.
1238 * @param pVM VM Handle.
1239 * @param GCPhys The physical address the guest is writing to.
1240 * @param pvPhys The HC mapping of that address.
1241 * @param pvBuf What the guest is reading/writing.
1242 * @param cbBuf How much it's reading/writing.
1243 * @param enmAccessType The access type.
1244 * @param pvUser User argument.
1245 */
1246static DECLCALLBACK(int) pcnetHandleRingWrite(PVM pVM, RTGCPHYS GCPhys, void *pvPhys, void *pvBuf,
1247 size_t cbBuf, PGMACCESSTYPE enmAccessType, void *pvUser)
1248{
1249 PPDMDEVINS pDevIns = (PPDMDEVINS)pvUser;
1250 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
1251
1252 Log(("#%d pcnetHandleRingWrite: write to %#010x\n", PCNET_INST_NR, GCPhys));
1253#ifdef VBOX_WITH_STATISTICS
1254 STAM_COUNTER_INC(&CTXSUFF(pThis->StatRingWrite));
1255 if (GCPhys >= pThis->GCRDRA && GCPhys < pcnetRdraAddr(pThis, 0))
1256 STAM_COUNTER_INC(&pThis->StatRCVRingWrite);
1257 else if (GCPhys >= pThis->GCTDRA && GCPhys < pcnetTdraAddr(pThis, 0))
1258 STAM_COUNTER_INC(&pThis->StatTXRingWrite);
1259#endif
1260 /* Perform the actual write */
1261 memcpy((char *)pvPhys, pvBuf, cbBuf);
1262
1263 /* Writes done by our code don't require polling of course */
1264 if (PDMCritSectIsOwner(&pThis->CritSect) == false)
1265 {
1266 if ( (GCPhys >= pThis->GCTDRA && GCPhys + cbBuf < pcnetTdraAddr(pThis, 0))
1267#ifdef PCNET_MONITOR_RECEIVE_RING
1268 || (GCPhys >= pThis->GCRDRA && GCPhys + cbBuf < pcnetRdraAddr(pThis, 0))
1269#endif
1270 )
1271 {
1272 int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
1273 AssertReleaseRC(rc);
1274 /* Check if we can do something now */
1275 pcnetPollRxTx(pThis);
1276 pcnetUpdateIrq(pThis);
1277 PDMCritSectLeave(&pThis->CritSect);
1278 }
1279 }
1280 return VINF_SUCCESS;
1281}
1282# endif /* !IN_RING3 */
1283#endif /* PCNET_NO_POLLING */
1284
1285static void pcnetSoftReset(PCNetState *pThis)
1286{
1287 Log(("#%d pcnetSoftReset:\n", PCNET_INST_NR));
1288
1289 pThis->u32Lnkst = 0x40;
1290 pThis->GCRDRA = 0;
1291 pThis->GCTDRA = 0;
1292 pThis->u32RAP = 0;
1293
1294 pThis->aBCR[BCR_BSBC] &= ~0x0080;
1295
1296 pThis->aCSR[0] = 0x0004;
1297 pThis->aCSR[3] = 0x0000;
1298 pThis->aCSR[4] = 0x0115;
1299 pThis->aCSR[5] = 0x0000;
1300 pThis->aCSR[6] = 0x0000;
1301 pThis->aCSR[8] = 0;
1302 pThis->aCSR[9] = 0;
1303 pThis->aCSR[10] = 0;
1304 pThis->aCSR[11] = 0;
1305 pThis->aCSR[12] = RT_LE2H_U16(((uint16_t *)&pThis->aPROM[0])[0]);
1306 pThis->aCSR[13] = RT_LE2H_U16(((uint16_t *)&pThis->aPROM[0])[1]);
1307 pThis->aCSR[14] = RT_LE2H_U16(((uint16_t *)&pThis->aPROM[0])[2]);
1308 pThis->aCSR[15] &= 0x21c4;
1309 CSR_RCVRC(pThis) = 1;
1310 CSR_XMTRC(pThis) = 1;
1311 CSR_RCVRL(pThis) = 1;
1312 CSR_XMTRL(pThis) = 1;
1313 pThis->aCSR[80] = 0x1410;
1314 pThis->aCSR[88] = pThis->fAm79C973 ? CSR_VERSION_LOW_79C973 : CSR_VERSION_LOW_79C970A;
1315 pThis->aCSR[89] = CSR_VERSION_HIGH;
1316 pThis->aCSR[94] = 0x0000;
1317 pThis->aCSR[100] = 0x0200;
1318 pThis->aCSR[103] = 0x0105;
1319 pThis->aCSR[103] = 0x0105;
1320 CSR_MISSC(pThis) = 0;
1321 pThis->aCSR[114] = 0x0000;
1322 pThis->aCSR[122] = 0x0000;
1323 pThis->aCSR[124] = 0x0000;
1324}
1325
1326/**
1327 * Check if we have to send an interrupt to the guest. An interrupt can occur on
1328 * - csr0 (written quite often)
1329 * - csr4 (only written by pcnetSoftReset(), pcnetStop() or by the guest driver)
1330 * - csr5 (only written by pcnetSoftReset(), pcnetStop or by the driver guest)
1331 */
1332static void pcnetUpdateIrq(PCNetState *pThis)
1333{
1334 register int iISR = 0;
1335 register uint16_t csr0 = pThis->aCSR[0];
1336
1337 csr0 &= ~0x0080; /* clear INTR */
1338
1339 STAM_PROFILE_ADV_START(&pThis->StatInterrupt, a);
1340
1341 /* Linux guests set csr4=0x0915
1342 * W2k guests set csr3=0x4940 (disable BABL, MERR, IDON, DXSUFLO */
1343
1344#if 1
1345 if ( ( (csr0 & ~pThis->aCSR[3]) & 0x5f00)
1346 || (((pThis->aCSR[4]>>1) & ~pThis->aCSR[4]) & 0x0115)
1347 || (((pThis->aCSR[5]>>1) & pThis->aCSR[5]) & 0x0048))
1348#else
1349 if ( ( !(pThis->aCSR[3] & 0x4000) && !!(csr0 & 0x4000)) /* BABL */
1350 ||( !(pThis->aCSR[3] & 0x1000) && !!(csr0 & 0x1000)) /* MISS */
1351 ||( !(pThis->aCSR[3] & 0x0100) && !!(csr0 & 0x0100)) /* IDON */
1352 ||( !(pThis->aCSR[3] & 0x0200) && !!(csr0 & 0x0200)) /* TINT */
1353 ||( !(pThis->aCSR[3] & 0x0400) && !!(csr0 & 0x0400)) /* RINT */
1354 ||( !(pThis->aCSR[3] & 0x0800) && !!(csr0 & 0x0800)) /* MERR */
1355 ||( !(pThis->aCSR[4] & 0x0001) && !!(pThis->aCSR[4] & 0x0002)) /* JAB */
1356 ||( !(pThis->aCSR[4] & 0x0004) && !!(pThis->aCSR[4] & 0x0008)) /* TXSTRT */
1357 ||( !(pThis->aCSR[4] & 0x0010) && !!(pThis->aCSR[4] & 0x0020)) /* RCVO */
1358 ||( !(pThis->aCSR[4] & 0x0100) && !!(pThis->aCSR[4] & 0x0200)) /* MFCO */
1359 ||(!!(pThis->aCSR[5] & 0x0040) && !!(pThis->aCSR[5] & 0x0080)) /* EXDINT */
1360 ||(!!(pThis->aCSR[5] & 0x0008) && !!(pThis->aCSR[5] & 0x0010)) /* MPINT */)
1361#endif
1362 {
1363 iISR = !!(csr0 & 0x0040); /* CSR_INEA */
1364 csr0 |= 0x0080; /* set INTR */
1365 }
1366
1367#ifdef VBOX
1368 if (pThis->aCSR[4] & 0x0080) /* UINTCMD */
1369 {
1370 pThis->aCSR[4] &= ~0x0080; /* clear UINTCMD */
1371 pThis->aCSR[4] |= 0x0040; /* set UINT */
1372 Log(("#%d user int\n", PCNET_INST_NR));
1373 }
1374 if (pThis->aCSR[4] & csr0 & 0x0040 /* CSR_INEA */)
1375 {
1376 csr0 |= 0x0080; /* set INTR */
1377 iISR = 1;
1378 }
1379#else /* !VBOX */
1380 if (!!(pThis->aCSR[4] & 0x0080) && CSR_INEA(pThis)) /* UINTCMD */
1381 {
1382 pThis->aCSR[4] &= ~0x0080;
1383 pThis->aCSR[4] |= 0x0040; /* set UINT */
1384 csr0 |= 0x0080; /* set INTR */
1385 iISR = 1;
1386 Log(("#%d user int\n", PCNET_INST_NR));
1387 }
1388#endif /* !VBOX */
1389
1390#if 1
1391 if (((pThis->aCSR[5]>>1) & pThis->aCSR[5]) & 0x0500)
1392#else
1393 if ( (!!(pThis->aCSR[5] & 0x0400) && !!(pThis->aCSR[5] & 0x0800)) /* SINT */
1394 ||(!!(pThis->aCSR[5] & 0x0100) && !!(pThis->aCSR[5] & 0x0200)) /* SLPINT */)
1395#endif
1396 {
1397 iISR = 1;
1398 csr0 |= 0x0080; /* INTR */
1399 }
1400
1401 if ((pThis->aCSR[7] & 0x0C00) == 0x0C00) /* STINT + STINTE */
1402 iISR = 1;
1403
1404 pThis->aCSR[0] = csr0;
1405
1406 Log2(("#%d set irq iISR=%d\n", PCNET_INST_NR, iISR));
1407
1408 /* normal path is to _not_ change the IRQ status */
1409 if (RT_UNLIKELY(iISR != pThis->iISR))
1410 {
1411 Log(("#%d INTA=%d\n", PCNET_INST_NR, iISR));
1412 PDMDevHlpPCISetIrqNoWait(PCNETSTATE_2_DEVINS(pThis), 0, iISR);
1413 pThis->iISR = iISR;
1414 }
1415 STAM_PROFILE_ADV_STOP(&pThis->StatInterrupt, a);
1416}
1417
1418/**
1419 * Enable/disable the private guest interface.
1420 */
1421static void pcnetEnablePrivateIf(PCNetState *pThis)
1422{
1423 bool fPrivIfEnabled = pThis->pSharedMMIOR3
1424 && !!(pThis->CTX_SUFF(pSharedMMIO)->fFlags & PCNET_GUEST_FLAGS_ADMIT_GUEST);
1425 if (fPrivIfEnabled != pThis->fPrivIfEnabled)
1426 {
1427 pThis->fPrivIfEnabled = fPrivIfEnabled;
1428 LogRel(("PCNet#%d: %s private interface\n", PCNET_INST_NR, fPrivIfEnabled ? "Enabling" : "Disabling"));
1429 }
1430}
1431
1432#ifdef IN_RING3
1433#ifdef PCNET_NO_POLLING
1434static void pcnetUpdateRingHandlers(PCNetState *pThis)
1435{
1436 PPDMDEVINS pDevIns = PCNETSTATE_2_DEVINS(pThis);
1437 int rc;
1438
1439 Log(("pcnetUpdateRingHandlers TD %RX32 size %#x -> %RX32 ?size? %#x\n", pThis->TDRAPhysOld, pThis->cbTDRAOld, pThis->GCTDRA, pcnetTdraAddr(pThis, 0)));
1440 Log(("pcnetUpdateRingHandlers RX %RX32 size %#x -> %RX32 ?size? %#x\n", pThis->RDRAPhysOld, pThis->cbRDRAOld, pThis->GCRDRA, pcnetRdraAddr(pThis, 0)));
1441
1442 /** @todo unregister order not correct! */
1443
1444#ifdef PCNET_MONITOR_RECEIVE_RING
1445 if (pThis->GCRDRA != pThis->RDRAPhysOld || CSR_RCVRL(pThis) != pThis->cbRDRAOld)
1446 {
1447 if (pThis->RDRAPhysOld != 0)
1448 PGMHandlerPhysicalDeregister(PDMDevHlpGetVM(pDevIns),
1449 pThis->RDRAPhysOld & ~PAGE_OFFSET_MASK);
1450
1451 rc = PGMR3HandlerPhysicalRegister(PDMDevHlpGetVM(pDevIns),
1452 PGMPHYSHANDLERTYPE_PHYSICAL_WRITE,
1453 pThis->GCRDRA & ~PAGE_OFFSET_MASK,
1454 RT_ALIGN(pcnetRdraAddr(pThis, 0), PAGE_SIZE) - 1,
1455 pcnetHandleRingWrite, pDevIns,
1456 g_DevicePCNet.szR0Mod, "pcnetHandleRingWrite",
1457 pThis->pDevInsHC->pvInstanceDataHC,
1458 g_DevicePCNet.szRCMod, "pcnetHandleRingWrite",
1459 pThis->pDevInsHC->pvInstanceDataRC,
1460 "PCNet receive ring write access handler");
1461 AssertRC(rc);
1462
1463 pThis->RDRAPhysOld = pThis->GCRDRA;
1464 pThis->cbRDRAOld = pcnetRdraAddr(pThis, 0);
1465 }
1466#endif /* PCNET_MONITOR_RECEIVE_RING */
1467
1468#ifdef PCNET_MONITOR_RECEIVE_RING
1469 /* 3 possibilities:
1470 * 1) TDRA on different physical page as RDRA
1471 * 2) TDRA completely on same physical page as RDRA
1472 * 3) TDRA & RDRA overlap partly with different physical pages
1473 */
1474 RTGCPHYS32 RDRAPageStart = pThis->GCRDRA & ~PAGE_OFFSET_MASK;
1475 RTGCPHYS32 RDRAPageEnd = (pcnetRdraAddr(pThis, 0) - 1) & ~PAGE_OFFSET_MASK;
1476 RTGCPHYS32 TDRAPageStart = pThis->GCTDRA & ~PAGE_OFFSET_MASK;
1477 RTGCPHYS32 TDRAPageEnd = (pcnetTdraAddr(pThis, 0) - 1) & ~PAGE_OFFSET_MASK;
1478
1479 if ( RDRAPageStart > TDRAPageEnd
1480 || TDRAPageStart > RDRAPageEnd)
1481 {
1482#endif /* PCNET_MONITOR_RECEIVE_RING */
1483 /* 1) */
1484 if (pThis->GCTDRA != pThis->TDRAPhysOld || CSR_XMTRL(pThis) != pThis->cbTDRAOld)
1485 {
1486 if (pThis->TDRAPhysOld != 0)
1487 PGMHandlerPhysicalDeregister(PDMDevHlpGetVM(pDevIns),
1488 pThis->TDRAPhysOld & ~PAGE_OFFSET_MASK);
1489
1490 rc = PGMR3HandlerPhysicalRegister(PDMDevHlpGetVM(pDevIns),
1491 PGMPHYSHANDLERTYPE_PHYSICAL_WRITE,
1492 pThis->GCTDRA & ~PAGE_OFFSET_MASK,
1493 RT_ALIGN(pcnetTdraAddr(pThis, 0), PAGE_SIZE) - 1,
1494 pcnetHandleRingWrite, pDevIns,
1495 g_DevicePCNet.szR0Mod, "pcnetHandleRingWrite",
1496 pThis->pDevInsHC->pvInstanceDataHC,
1497 g_DevicePCNet.szRCMod, "pcnetHandleRingWrite",
1498 pThis->pDevInsHC->pvInstanceDataRC,
1499 "PCNet transmit ring write access handler");
1500 AssertRC(rc);
1501
1502 pThis->TDRAPhysOld = pThis->GCTDRA;
1503 pThis->cbTDRAOld = pcnetTdraAddr(pThis, 0);
1504 }
1505#ifdef PCNET_MONITOR_RECEIVE_RING
1506 }
1507 else
1508 if ( RDRAPageStart != TDRAPageStart
1509 && ( TDRAPageStart == RDRAPageEnd
1510 || TDRAPageEnd == RDRAPageStart
1511 )
1512 )
1513 {
1514 /* 3) */
1515 AssertFailed();
1516 }
1517 /* else 2) */
1518#endif
1519}
1520#endif /* PCNET_NO_POLLING */
1521
1522static void pcnetInit(PCNetState *pThis)
1523{
1524 PPDMDEVINS pDevIns = PCNETSTATE_2_DEVINS(pThis);
1525 Log(("#%d pcnetInit: init_addr=%#010x\n", PCNET_INST_NR, PHYSADDR(pThis, CSR_IADR(pThis))));
1526
1527 /** @todo Documentation says that RCVRL and XMTRL are stored as two's complement!
1528 * Software is allowed to write these registers directly. */
1529#define PCNET_INIT() do { \
1530 PDMDevHlpPhysRead(pDevIns, PHYSADDR(pThis, CSR_IADR(pThis)), \
1531 (uint8_t *)&initblk, sizeof(initblk)); \
1532 pThis->aCSR[15] = RT_LE2H_U16(initblk.mode); \
1533 CSR_RCVRL(pThis) = (initblk.rlen < 9) ? (1 << initblk.rlen) : 512; \
1534 CSR_XMTRL(pThis) = (initblk.tlen < 9) ? (1 << initblk.tlen) : 512; \
1535 pThis->aCSR[ 6] = (initblk.tlen << 12) | (initblk.rlen << 8); \
1536 pThis->aCSR[ 8] = RT_LE2H_U16(initblk.ladrf1); \
1537 pThis->aCSR[ 9] = RT_LE2H_U16(initblk.ladrf2); \
1538 pThis->aCSR[10] = RT_LE2H_U16(initblk.ladrf3); \
1539 pThis->aCSR[11] = RT_LE2H_U16(initblk.ladrf4); \
1540 pThis->aCSR[12] = RT_LE2H_U16(initblk.padr1); \
1541 pThis->aCSR[13] = RT_LE2H_U16(initblk.padr2); \
1542 pThis->aCSR[14] = RT_LE2H_U16(initblk.padr3); \
1543 pThis->GCRDRA = PHYSADDR(pThis, initblk.rdra); \
1544 pThis->GCTDRA = PHYSADDR(pThis, initblk.tdra); \
1545} while (0)
1546
1547 pcnetEnablePrivateIf(pThis);
1548
1549 if (BCR_SSIZE32(pThis))
1550 {
1551 struct INITBLK32 initblk;
1552 pThis->GCUpperPhys = 0;
1553 PCNET_INIT();
1554 Log(("#%d initblk.rlen=%#04x, initblk.tlen=%#04x\n",
1555 PCNET_INST_NR, initblk.rlen, initblk.tlen));
1556 }
1557 else
1558 {
1559 struct INITBLK16 initblk;
1560 pThis->GCUpperPhys = (0xff00 & (uint32_t)pThis->aCSR[2]) << 16;
1561 PCNET_INIT();
1562 Log(("#%d initblk.rlen=%#04x, initblk.tlen=%#04x\n",
1563 PCNET_INST_NR, initblk.rlen, initblk.tlen));
1564 }
1565
1566#undef PCNET_INIT
1567
1568 size_t cbRxBuffers = 0;
1569 for (int i = CSR_RCVRL(pThis); i >= 1; i--)
1570 {
1571 RMD rmd;
1572 RTGCPHYS32 rdaddr = PHYSADDR(pThis, pcnetRdraAddr(pThis, i));
1573
1574 pcnetDescTouch(pThis, rdaddr);
1575 /* At this time it is not guaranteed that the buffers are already initialized. */
1576 if (pcnetRmdLoad(pThis, &rmd, rdaddr, false))
1577 {
1578 uint32_t cbBuf = 4096U-rmd.rmd1.bcnt;
1579 cbRxBuffers += cbBuf;
1580 }
1581 }
1582
1583 for (int i = CSR_XMTRL(pThis); i >= 1; i--)
1584 {
1585 RTGCPHYS32 tdaddr = PHYSADDR(pThis, pcnetTdraAddr(pThis, i));
1586
1587 pcnetDescTouch(pThis, tdaddr);
1588 }
1589
1590 /*
1591 * Heuristics: The Solaris pcn driver allocates too few RX buffers (128 buffers of a
1592 * size of 128 bytes are 16KB in summary) leading to frequent RX buffer overflows. In
1593 * that case we don't signal RX overflows through the CSR0_MISS flag as the driver
1594 * re-initializes the device on every miss. Other guests use at least 32 buffers of
1595 * usually 1536 bytes and should therefore not run into condition. If they are still
1596 * short in RX buffers we notify this condition.
1597 */
1598 pThis->fSignalRxMiss = (cbRxBuffers == 0 || cbRxBuffers >= 32*_1K);
1599
1600 if (pThis->pDrv)
1601 pThis->pDrv->pfnSetPromiscuousMode(pThis->pDrv, CSR_PROM(pThis));
1602
1603 CSR_RCVRC(pThis) = CSR_RCVRL(pThis);
1604 CSR_XMTRC(pThis) = CSR_XMTRL(pThis);
1605
1606#ifdef PCNET_NO_POLLING
1607 pcnetUpdateRingHandlers(pThis);
1608#endif
1609
1610 /* Reset cached RX and TX states */
1611 CSR_CRST(pThis) = CSR_CRBC(pThis) = CSR_NRST(pThis) = CSR_NRBC(pThis) = 0;
1612 CSR_CXST(pThis) = CSR_CXBC(pThis) = CSR_NXST(pThis) = CSR_NXBC(pThis) = 0;
1613
1614 LogRel(("PCNet#%d: Init: ss32=%d GCRDRA=%#010x[%d] GCTDRA=%#010x[%d]%s\n",
1615 PCNET_INST_NR, BCR_SSIZE32(pThis),
1616 pThis->GCRDRA, CSR_RCVRL(pThis), pThis->GCTDRA, CSR_XMTRL(pThis),
1617 !pThis->fSignalRxMiss ? " (CSR0_MISS disabled)" : ""));
1618
1619 pThis->aCSR[0] |= 0x0101; /* Initialization done */
1620 pThis->aCSR[0] &= ~0x0004; /* clear STOP bit */
1621}
1622#endif /* IN_RING3 */
1623
1624/**
1625 * Start RX/TX operation.
1626 */
1627static void pcnetStart(PCNetState *pThis)
1628{
1629 Log(("#%d pcnetStart:\n", PCNET_INST_NR));
1630 if (!CSR_DTX(pThis))
1631 pThis->aCSR[0] |= 0x0010; /* set TXON */
1632 if (!CSR_DRX(pThis))
1633 pThis->aCSR[0] |= 0x0020; /* set RXON */
1634 pcnetEnablePrivateIf(pThis);
1635 pThis->aCSR[0] &= ~0x0004; /* clear STOP bit */
1636 pThis->aCSR[0] |= 0x0002; /* STRT */
1637 pcnetPollTimerStart(pThis); /* start timer if it was stopped */
1638}
1639
1640/**
1641 * Stop RX/TX operation.
1642 */
1643static void pcnetStop(PCNetState *pThis)
1644{
1645 Log(("#%d pcnetStop:\n", PCNET_INST_NR));
1646 pThis->aCSR[0] &= ~0x7feb;
1647 pThis->aCSR[0] |= 0x0014;
1648 pThis->aCSR[4] &= ~0x02c2;
1649 pThis->aCSR[5] &= ~0x0011;
1650 pcnetEnablePrivateIf(pThis);
1651 pcnetPollTimer(pThis);
1652}
1653
1654#ifdef IN_RING3
1655static DECLCALLBACK(void) pcnetWakeupReceive(PPDMDEVINS pDevIns)
1656{
1657 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
1658 STAM_COUNTER_INC(&pThis->StatRxOverflowWakeup);
1659 if (pThis->hEventOutOfRxSpace != NIL_RTSEMEVENT)
1660 RTSemEventSignal(pThis->hEventOutOfRxSpace);
1661}
1662
1663static DECLCALLBACK(bool) pcnetCanRxQueueConsumer(PPDMDEVINS pDevIns, PPDMQUEUEITEMCORE pItem)
1664{
1665 pcnetWakeupReceive(pDevIns);
1666 return true;
1667}
1668#endif /* IN_RING3 */
1669
1670
1671/**
1672 * Poll Receive Descriptor Table Entry and cache the results in the appropriate registers.
1673 * Note: Once a descriptor belongs to the network card (this driver), it cannot be changed
1674 * by the host (the guest driver) anymore. Well, it could but the results are undefined by
1675 * definition.
1676 * @param fSkipCurrent if true, don't scan the current RDTE.
1677 */
1678static void pcnetRdtePoll(PCNetState *pThis, bool fSkipCurrent=false)
1679{
1680 STAM_PROFILE_ADV_START(&pThis->CTXSUFF(StatRdtePoll), a);
1681 /* assume lack of a next receive descriptor */
1682 CSR_NRST(pThis) = 0;
1683
1684 if (RT_LIKELY(pThis->GCRDRA))
1685 {
1686 /*
1687 * The current receive message descriptor.
1688 */
1689 RMD rmd;
1690 int i = CSR_RCVRC(pThis);
1691 RTGCPHYS32 addr;
1692
1693 if (i < 1)
1694 i = CSR_RCVRL(pThis);
1695
1696 if (!fSkipCurrent)
1697 {
1698 addr = pcnetRdraAddr(pThis, i);
1699 CSR_CRDA(pThis) = CSR_CRBA(pThis) = 0;
1700 CSR_CRBC(pThis) = CSR_CRST(pThis) = 0;
1701 if (!pcnetRmdLoad(pThis, &rmd, PHYSADDR(pThis, addr), true))
1702 {
1703 STAM_PROFILE_ADV_STOP(&pThis->CTXSUFF(StatRdtePoll), a);
1704 return;
1705 }
1706 if (RT_LIKELY(!IS_RMD_BAD(rmd)))
1707 {
1708 CSR_CRDA(pThis) = addr; /* Receive Descriptor Address */
1709 CSR_CRBA(pThis) = rmd.rmd0.rbadr; /* Receive Buffer Address */
1710 CSR_CRBC(pThis) = rmd.rmd1.bcnt; /* Receive Byte Count */
1711 CSR_CRST(pThis) = ((uint32_t *)&rmd)[1] >> 16; /* Receive Status */
1712 if (pThis->fMaybeOutOfSpace)
1713 {
1714#ifdef IN_RING3
1715 pcnetWakeupReceive(PCNETSTATE_2_DEVINS(pThis));
1716#else
1717 PPDMQUEUEITEMCORE pItem = PDMQueueAlloc(pThis->CTX_SUFF(pCanRxQueue));
1718 if (pItem)
1719 PDMQueueInsert(pThis->CTX_SUFF(pCanRxQueue), pItem);
1720#endif
1721 }
1722 }
1723 else
1724 {
1725 STAM_PROFILE_ADV_STOP(&pThis->CTXSUFF(StatRdtePoll), a);
1726 /* This is not problematic since we don't own the descriptor */
1727 LogRel(("PCNet#%d: BAD RMD ENTRIES AT %#010x (i=%d)\n",
1728 PCNET_INST_NR, addr, i));
1729 return;
1730 }
1731 }
1732
1733 /*
1734 * The next descriptor.
1735 */
1736 if (--i < 1)
1737 i = CSR_RCVRL(pThis);
1738 addr = pcnetRdraAddr(pThis, i);
1739 CSR_NRDA(pThis) = CSR_NRBA(pThis) = 0;
1740 CSR_NRBC(pThis) = 0;
1741 if (!pcnetRmdLoad(pThis, &rmd, PHYSADDR(pThis, addr), true))
1742 {
1743 STAM_PROFILE_ADV_STOP(&pThis->CTXSUFF(StatRdtePoll), a);
1744 return;
1745 }
1746 if (RT_LIKELY(!IS_RMD_BAD(rmd)))
1747 {
1748 CSR_NRDA(pThis) = addr; /* Receive Descriptor Address */
1749 CSR_NRBA(pThis) = rmd.rmd0.rbadr; /* Receive Buffer Address */
1750 CSR_NRBC(pThis) = rmd.rmd1.bcnt; /* Receive Byte Count */
1751 CSR_NRST(pThis) = ((uint32_t *)&rmd)[1] >> 16; /* Receive Status */
1752 }
1753 else
1754 {
1755 STAM_PROFILE_ADV_STOP(&pThis->CTXSUFF(StatRdtePoll), a);
1756 /* This is not problematic since we don't own the descriptor */
1757 LogRel(("PCNet#%d: BAD RMD ENTRIES + AT %#010x (i=%d)\n",
1758 PCNET_INST_NR, addr, i));
1759 return;
1760 }
1761
1762 /**
1763 * @todo NNRD
1764 */
1765 }
1766 else
1767 {
1768 CSR_CRDA(pThis) = CSR_CRBA(pThis) = CSR_NRDA(pThis) = CSR_NRBA(pThis) = 0;
1769 CSR_CRBC(pThis) = CSR_NRBC(pThis) = CSR_CRST(pThis) = 0;
1770 }
1771 STAM_PROFILE_ADV_STOP(&pThis->CTXSUFF(StatRdtePoll), a);
1772}
1773
1774/**
1775 * Poll Transmit Descriptor Table Entry
1776 * @return true if transmit descriptors available
1777 */
1778static int pcnetTdtePoll(PCNetState *pThis, TMD *tmd)
1779{
1780 STAM_PROFILE_ADV_START(&pThis->CTXSUFF(StatTdtePoll), a);
1781 if (RT_LIKELY(pThis->GCTDRA))
1782 {
1783 RTGCPHYS32 cxda = pcnetTdraAddr(pThis, CSR_XMTRC(pThis));
1784
1785 if (!pcnetTmdLoad(pThis, tmd, PHYSADDR(pThis, cxda), true))
1786 {
1787 STAM_PROFILE_ADV_STOP(&pThis->CTXSUFF(StatTdtePoll), a);
1788 return 0;
1789 }
1790
1791 if (RT_UNLIKELY(tmd->tmd1.ones != 15))
1792 {
1793 STAM_PROFILE_ADV_STOP(&pThis->CTXSUFF(StatTdtePoll), a);
1794 LogRel(("PCNet#%d: BAD TMD XDA=%#010x\n",
1795 PCNET_INST_NR, PHYSADDR(pThis, cxda)));
1796 return 0;
1797 }
1798
1799 /* previous xmit descriptor */
1800 CSR_PXDA(pThis) = CSR_CXDA(pThis);
1801 CSR_PXBC(pThis) = CSR_CXBC(pThis);
1802 CSR_PXST(pThis) = CSR_CXST(pThis);
1803
1804 /* set current trasmit decriptor. */
1805 CSR_CXDA(pThis) = cxda;
1806 CSR_CXBC(pThis) = tmd->tmd1.bcnt;
1807 CSR_CXST(pThis) = ((uint32_t *)tmd)[1] >> 16;
1808 STAM_PROFILE_ADV_STOP(&pThis->CTXSUFF(StatTdtePoll), a);
1809 return CARD_IS_OWNER(CSR_CXST(pThis));
1810 }
1811 else
1812 {
1813 /** @todo consistency with previous receive descriptor */
1814 CSR_CXDA(pThis) = 0;
1815 CSR_CXBC(pThis) = CSR_CXST(pThis) = 0;
1816 STAM_PROFILE_ADV_STOP(&pThis->CTXSUFF(StatTdtePoll), a);
1817 return 0;
1818 }
1819}
1820
1821
1822#ifdef IN_RING3
1823
1824/**
1825 * Write data into guest receive buffers.
1826 */
1827static void pcnetReceiveNoSync(PCNetState *pThis, const uint8_t *buf, size_t cbToRecv)
1828{
1829 PPDMDEVINS pDevIns = PCNETSTATE_2_DEVINS(pThis);
1830 int is_padr = 0, is_bcast = 0, is_ladr = 0;
1831 unsigned iRxDesc;
1832 int cbPacket;
1833
1834 if (RT_UNLIKELY(CSR_DRX(pThis) || CSR_STOP(pThis) || CSR_SPND(pThis) || !cbToRecv))
1835 return;
1836
1837 /*
1838 * Drop packets if the VM is not running yet/anymore.
1839 */
1840 if (PDMDevHlpVMState(pDevIns) != VMSTATE_RUNNING)
1841 return;
1842
1843 Log(("#%d pcnetReceiveNoSync: size=%d\n", PCNET_INST_NR, cbToRecv));
1844
1845 /*
1846 * Perform address matching.
1847 */
1848 if ( CSR_PROM(pThis)
1849 || (is_padr = padr_match(pThis, buf, cbToRecv))
1850 || (is_bcast = padr_bcast(pThis, buf, cbToRecv))
1851 || (is_ladr = ladr_match(pThis, buf, cbToRecv)))
1852 {
1853 if (HOST_IS_OWNER(CSR_CRST(pThis)))
1854 pcnetRdtePoll(pThis);
1855 if (RT_UNLIKELY(HOST_IS_OWNER(CSR_CRST(pThis))))
1856 {
1857 /* Not owned by controller. This should not be possible as
1858 * we already called pcnetCanReceive(). */
1859 LogRel(("PCNet#%d: no buffer: RCVRC=%d\n",
1860 PCNET_INST_NR, CSR_RCVRC(pThis)));
1861 /* Dump the status of all RX descriptors */
1862 const unsigned cb = 1 << pThis->iLog2DescSize;
1863 RTGCPHYS32 GCPhys = pThis->GCRDRA;
1864 iRxDesc = CSR_RCVRL(pThis);
1865 while (iRxDesc-- > 0)
1866 {
1867 RMD rmd;
1868 pcnetRmdLoad(pThis, &rmd, PHYSADDR(pThis, GCPhys), false);
1869 LogRel((" %#010x\n", rmd.rmd1));
1870 GCPhys += cb;
1871 }
1872 pThis->aCSR[0] |= 0x1000; /* Set MISS flag */
1873 CSR_MISSC(pThis)++;
1874 }
1875 else
1876 {
1877 uint8_t *src = &pThis->abRecvBuf[8];
1878 RTGCPHYS32 crda = CSR_CRDA(pThis);
1879 RTGCPHYS32 next_crda;
1880 RMD rmd, next_rmd;
1881
1882 memcpy(src, buf, cbToRecv);
1883 if (!CSR_ASTRP_RCV(pThis))
1884 {
1885 uint32_t fcs = ~0;
1886 uint8_t *p = src;
1887
1888 while (cbToRecv < 60)
1889 src[cbToRecv++] = 0;
1890 while (p != &src[cbToRecv])
1891 CRC(fcs, *p++);
1892 ((uint32_t *)&src[cbToRecv])[0] = htonl(fcs);
1893 /* FCS at end of packet */
1894 }
1895 cbToRecv += 4;
1896 cbPacket = (int)cbToRecv; Assert((size_t)cbPacket == cbToRecv);
1897
1898#ifdef PCNET_DEBUG_MATCH
1899 PRINT_PKTHDR(buf);
1900#endif
1901
1902 pcnetRmdLoad(pThis, &rmd, PHYSADDR(pThis, crda), false);
1903 /*if (!CSR_LAPPEN(pThis))*/
1904 rmd.rmd1.stp = 1;
1905
1906 size_t cbBuf = RT_MIN(4096 - (size_t)rmd.rmd1.bcnt, cbToRecv);
1907 RTGCPHYS32 rbadr = PHYSADDR(pThis, rmd.rmd0.rbadr);
1908
1909 /* save the old value to check if it was changed as long as we didn't
1910 * hold the critical section */
1911 iRxDesc = CSR_RCVRC(pThis);
1912
1913 /* We have to leave the critical section here or we risk deadlocking
1914 * with EMT when the write is to an unallocated page or has an access
1915 * handler associated with it.
1916 *
1917 * This shouldn't be a problem because:
1918 * - any modification to the RX descriptor by the driver is
1919 * forbidden as long as it is owned by the device
1920 * - we don't cache any register state beyond this point
1921 */
1922 PDMCritSectLeave(&pThis->CritSect);
1923 PDMDevHlpPhysWrite(pDevIns, rbadr, src, cbBuf);
1924 int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
1925 AssertReleaseRC(rc);
1926
1927 /* RX disabled in the meantime? If so, abort RX. */
1928 if (RT_UNLIKELY(CSR_DRX(pThis) || CSR_STOP(pThis) || CSR_SPND(pThis)))
1929 return;
1930
1931 /* Was the register modified in the meantime? If so, don't touch the
1932 * register but still update the RX descriptor. */
1933 if (RT_LIKELY(iRxDesc == CSR_RCVRC(pThis)))
1934 {
1935 if (iRxDesc-- < 2)
1936 iRxDesc = CSR_RCVRL(pThis);
1937 CSR_RCVRC(pThis) = iRxDesc;
1938 }
1939 else
1940 iRxDesc = CSR_RCVRC(pThis);
1941
1942 src += cbBuf;
1943 cbToRecv -= cbBuf;
1944
1945 while (cbToRecv > 0)
1946 {
1947 /* Read the entire next descriptor as we're likely to need it. */
1948 next_crda = pcnetRdraAddr(pThis, iRxDesc);
1949
1950 /* Check next descriptor's own bit. If we don't own it, we have
1951 * to quit and write error status into the last descriptor we own.
1952 */
1953 if (!pcnetRmdLoad(pThis, &next_rmd, PHYSADDR(pThis, next_crda), true))
1954 break;
1955
1956 /* Write back current descriptor, clear the own bit. */
1957 pcnetRmdStorePassHost(pThis, &rmd, PHYSADDR(pThis, crda));
1958
1959 /* Switch to the next descriptor */
1960 crda = next_crda;
1961 rmd = next_rmd;
1962
1963 cbBuf = RT_MIN(4096 - (size_t)rmd.rmd1.bcnt, cbToRecv);
1964 RTGCPHYS32 rbadr = PHYSADDR(pThis, rmd.rmd0.rbadr);
1965
1966 /* We have to leave the critical section here or we risk deadlocking
1967 * with EMT when the write is to an unallocated page or has an access
1968 * handler associated with it. See above for additional comments. */
1969 PDMCritSectLeave(&pThis->CritSect);
1970 PDMDevHlpPhysWrite(pDevIns, rbadr, src, cbBuf);
1971 rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
1972 AssertReleaseRC(rc);
1973
1974 /* RX disabled in the meantime? If so, abort RX. */
1975 if (RT_UNLIKELY(CSR_DRX(pThis) || CSR_STOP(pThis) || CSR_SPND(pThis)))
1976 return;
1977
1978 /* Was the register modified in the meantime? If so, don't touch the
1979 * register but still update the RX descriptor. */
1980 if (RT_LIKELY(iRxDesc == CSR_RCVRC(pThis)))
1981 {
1982 if (iRxDesc-- < 2)
1983 iRxDesc = CSR_RCVRL(pThis);
1984 CSR_RCVRC(pThis) = iRxDesc;
1985 }
1986 else
1987 iRxDesc = CSR_RCVRC(pThis);
1988
1989 src += cbBuf;
1990 cbToRecv -= cbBuf;
1991 }
1992
1993 if (RT_LIKELY(cbToRecv == 0))
1994 {
1995 rmd.rmd1.enp = 1;
1996 rmd.rmd1.pam = !CSR_PROM(pThis) && is_padr;
1997 rmd.rmd1.lafm = !CSR_PROM(pThis) && is_ladr;
1998 rmd.rmd1.bam = !CSR_PROM(pThis) && is_bcast;
1999 rmd.rmd2.mcnt = cbPacket;
2000
2001 STAM_REL_COUNTER_ADD(&pThis->StatReceiveBytes, cbPacket);
2002 }
2003 else
2004 {
2005 Log(("#%d: Overflow by %ubytes\n", PCNET_INST_NR, cbToRecv));
2006 rmd.rmd1.oflo = 1;
2007 rmd.rmd1.buff = 1;
2008 rmd.rmd1.err = 1;
2009 }
2010
2011 /* write back, clear the own bit */
2012 pcnetRmdStorePassHost(pThis, &rmd, PHYSADDR(pThis, crda));
2013
2014 pThis->aCSR[0] |= 0x0400;
2015
2016 Log(("#%d RCVRC=%d CRDA=%#010x\n", PCNET_INST_NR,
2017 CSR_RCVRC(pThis), PHYSADDR(pThis, CSR_CRDA(pThis))));
2018#ifdef PCNET_DEBUG_RMD
2019 PRINT_RMD(&rmd);
2020#endif
2021
2022 /* guest driver is owner: force repoll of current and next RDTEs */
2023 CSR_CRST(pThis) = 0;
2024 }
2025 }
2026
2027 /* see description of TXDPOLL:
2028 * ``transmit polling will take place following receive activities'' */
2029 pcnetPollRxTx(pThis);
2030 pcnetUpdateIrq(pThis);
2031}
2032
2033
2034/**
2035 * Checks if the link is up.
2036 * @returns true if the link is up.
2037 * @returns false if the link is down.
2038 */
2039DECLINLINE(bool) pcnetIsLinkUp(PCNetState *pThis)
2040{
2041 return pThis->pDrv && !pThis->fLinkTempDown && pThis->fLinkUp;
2042}
2043
2044
2045/**
2046 * Transmit queue consumer
2047 * This is just a very simple way of delaying sending to R3.
2048 *
2049 * @returns Success indicator.
2050 * If false the item will not be removed and the flushing will stop.
2051 * @param pDevIns The device instance.
2052 * @param pItem The item to consume. Upon return this item will be freed.
2053 */
2054static DECLCALLBACK(bool) pcnetXmitQueueConsumer(PPDMDEVINS pDevIns, PPDMQUEUEITEMCORE pItem)
2055{
2056 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
2057 NOREF(pItem);
2058
2059 /* Clear counter .*/
2060 ASMAtomicAndU32(&pThis->cPendingSends, 0);
2061#ifdef PCNET_QUEUE_SEND_PACKETS
2062 int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
2063 AssertReleaseRC(rc);
2064 pcnetSyncTransmit(pThis);
2065 PDMCritSectLeave(&pThis->CritSect);
2066#else
2067 int rc = RTSemEventSignal(pThis->hSendEventSem);
2068 AssertRC(rc);
2069#endif
2070 return true;
2071}
2072
2073
2074/**
2075 * Scraps the top frame.
2076 * This is done as a precaution against mess left over by on
2077 */
2078DECLINLINE(void) pcnetXmitScrapFrame(PCNetState *pThis)
2079{
2080 pThis->pvSendFrame = NULL;
2081 pThis->cbSendFrame = 0;
2082}
2083
2084
2085/**
2086 * Reads the first part of a frame
2087 */
2088DECLINLINE(void) pcnetXmitRead1st(PCNetState *pThis, RTGCPHYS32 GCPhysFrame, const unsigned cbFrame)
2089{
2090 Assert(PDMCritSectIsOwner(&pThis->CritSect));
2091 Assert(cbFrame < sizeof(pThis->abSendBuf));
2092
2093#ifdef PCNET_QUEUE_SEND_PACKETS
2094 AssertRelease(pThis->cXmitRingBufPending < PCNET_MAX_XMIT_SLOTS-1);
2095 pThis->pvSendFrame = pThis->apXmitRingBuffer[pThis->iXmitRingBufProd];
2096#else
2097 pThis->pvSendFrame = pThis->abSendBuf;
2098#endif
2099 PDMDevHlpPhysRead(pThis->CTX_SUFF(pDevIns), GCPhysFrame, pThis->pvSendFrame, cbFrame);
2100 pThis->cbSendFrame = cbFrame;
2101}
2102
2103
2104/**
2105 * Reads more into the current frame.
2106 */
2107DECLINLINE(void) pcnetXmitReadMore(PCNetState *pThis, RTGCPHYS32 GCPhysFrame, const unsigned cbFrame)
2108{
2109 Assert(pThis->cbSendFrame + cbFrame <= MAX_FRAME);
2110 PDMDevHlpPhysRead(pThis->CTX_SUFF(pDevIns), GCPhysFrame, pThis->pvSendFrame + pThis->cbSendFrame, cbFrame);
2111 pThis->cbSendFrame += cbFrame;
2112}
2113
2114
2115/**
2116 * Completes the current frame.
2117 * If we've reached the maxium number of frames, they will be flushed.
2118 */
2119DECLINLINE(int) pcnetXmitCompleteFrame(PCNetState *pThis)
2120{
2121#ifdef PCNET_QUEUE_SEND_PACKETS
2122 Assert(PDMCritSectIsOwner(&pThis->CritSect));
2123 AssertRelease(pThis->cXmitRingBufPending < PCNET_MAX_XMIT_SLOTS-1);
2124 Assert(!pThis->cbXmitRingBuffer[pThis->iXmitRingBufProd]);
2125
2126 pThis->cbXmitRingBuffer[pThis->iXmitRingBufProd] = (uint16_t)pThis->cbSendFrame;
2127 pThis->iXmitRingBufProd = (pThis->iXmitRingBufProd+1) & PCNET_MAX_XMIT_SLOTS_MASK;
2128 ASMAtomicIncS32(&pThis->cXmitRingBufPending);
2129
2130 int rc = RTSemEventSignal(pThis->hSendEventSem);
2131 AssertRC(rc);
2132
2133 return VINF_SUCCESS;
2134#else
2135 /* Don't hold the critical section while transmitting data. */
2136 /** @note also avoids deadlocks with NAT as it can call us right back. */
2137 PDMCritSectLeave(&pThis->CritSect);
2138
2139 STAM_PROFILE_ADV_START(&pThis->StatTransmitSend, a);
2140 if (pThis->cbSendFrame > 70) /* unqualified guess */
2141 pThis->Led.Asserted.s.fWriting = pThis->Led.Actual.s.fWriting = 1;
2142
2143 pThis->pDrv->pfnSend(pThis->pDrv, pThis->pvSendFrame, pThis->cbSendFrame);
2144 STAM_REL_COUNTER_ADD(&pThis->StatTransmitBytes, pThis->cbSendFrame);
2145 pThis->Led.Actual.s.fWriting = 0;
2146 STAM_PROFILE_ADV_STOP(&pThis->StatTransmitSend, a);
2147
2148 return PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
2149#endif
2150}
2151
2152
2153/**
2154 * Fails a TMD with a link down error.
2155 */
2156static void pcnetXmitFailTMDLinkDown(PCNetState *pThis, TMD *pTmd)
2157{
2158 /* make carrier error - hope this is correct. */
2159 pThis->cLinkDownReported++;
2160 pTmd->tmd2.lcar = pTmd->tmd1.err = 1;
2161 pThis->aCSR[0] |= RT_BIT(15) | RT_BIT(13); /* ERR | CERR */
2162 pThis->Led.Asserted.s.fError = pThis->Led.Actual.s.fError = 1;
2163 Log(("#%d pcnetTransmit: Signaling send error. swstyle=%#x\n",
2164 PCNET_INST_NR, pThis->aBCR[BCR_SWS]));
2165}
2166
2167/**
2168 * Fails a TMD with a generic error.
2169 */
2170static void pcnetXmitFailTMDGeneric(PCNetState *pThis, TMD *pTmd)
2171{
2172 /* make carrier error - hope this is correct. */
2173 pTmd->tmd2.lcar = pTmd->tmd1.err = 1;
2174 pThis->aCSR[0] |= RT_BIT(15) | RT_BIT(13); /* ERR | CERR */
2175 pThis->Led.Asserted.s.fError = pThis->Led.Actual.s.fError = 1;
2176 Log(("#%d pcnetTransmit: Signaling send error. swstyle=%#x\n",
2177 PCNET_INST_NR, pThis->aBCR[BCR_SWS]));
2178}
2179
2180
2181/**
2182 * Transmit a loopback frame.
2183 */
2184DECLINLINE(void) pcnetXmitLoopbackFrame(PCNetState *pThis)
2185{
2186 pThis->Led.Asserted.s.fReading = pThis->Led.Actual.s.fReading = 1;
2187 if (HOST_IS_OWNER(CSR_CRST(pThis)))
2188 pcnetRdtePoll(pThis);
2189
2190 Assert(pThis->pvSendFrame);
2191 pcnetReceiveNoSync(pThis, (const uint8_t *)pThis->pvSendFrame, pThis->cbSendFrame);
2192 pcnetXmitScrapFrame(pThis);
2193 pThis->Led.Actual.s.fReading = 0;
2194}
2195
2196/**
2197 * Flushes queued frames.
2198 */
2199DECLINLINE(void) pcnetXmitFlushFrames(PCNetState *pThis)
2200{
2201 pcnetXmitQueueConsumer(pThis->CTX_SUFF(pDevIns), NULL);
2202}
2203
2204#endif /* IN_RING3 */
2205
2206
2207
2208/**
2209 * Try to transmit frames
2210 */
2211static void pcnetTransmit(PCNetState *pThis)
2212{
2213 if (RT_UNLIKELY(!CSR_TXON(pThis)))
2214 {
2215 pThis->aCSR[0] &= ~0x0008; /* Clear TDMD */
2216 return;
2217 }
2218
2219 /*
2220 * Check the current transmit descriptors.
2221 */
2222 TMD tmd;
2223 if (!pcnetTdtePoll(pThis, &tmd))
2224 return;
2225
2226 /*
2227 * Clear TDMD.
2228 */
2229 pThis->aCSR[0] &= ~0x0008;
2230
2231 /*
2232 * If we're in Ring-3 we should flush the queue now, in GC/R0 we'll queue a flush job.
2233 */
2234#ifdef IN_RING3
2235 pcnetXmitFlushFrames(pThis);
2236#else
2237# if 1
2238 PPDMQUEUEITEMCORE pItem = PDMQueueAlloc(pThis->CTX_SUFF(pXmitQueue));
2239 if (RT_UNLIKELY(pItem))
2240 PDMQueueInsert(pThis->CTX_SUFF(pXmitQueue), pItem);
2241# else
2242 if (ASMAtomicIncU32(&pThis->cPendingSends) < 16)
2243 {
2244 PPDMQUEUEITEMCORE pItem = PDMQueueAlloc(pThis->CTX_SUFF(pXmitQueue));
2245 if (RT_UNLIKELY(pItem))
2246 PDMQueueInsert(pThis->CTX_SUFF(pXmitQueue), pItem);
2247 }
2248 else
2249 PDMQueueFlush(pThis->CTX_SUFF(pXmitQueue));
2250# endif
2251#endif
2252}
2253
2254#ifdef IN_RING3
2255
2256/**
2257 * Try to transmit frames
2258 */
2259#ifdef PCNET_QUEUE_SEND_PACKETS
2260static int pcnetAsyncTransmit(PCNetState *pThis)
2261{
2262 Assert(PDMCritSectIsOwner(&pThis->CritSect));
2263 size_t cb;
2264
2265 while ((pThis->cXmitRingBufPending > 0))
2266 {
2267 cb = pThis->cbXmitRingBuffer[pThis->iXmitRingBufCons];
2268
2269 /* Don't hold the critical section while transmitting data. */
2270 /** @note also avoids deadlocks with NAT as it can call us right back. */
2271 PDMCritSectLeave(&pThis->CritSect);
2272
2273 STAM_PROFILE_ADV_START(&pThis->StatTransmitSend, a);
2274 if (cb > 70) /* unqualified guess */
2275 pThis->Led.Asserted.s.fWriting = pThis->Led.Actual.s.fWriting = 1;
2276
2277 pThis->pDrv->pfnSend(pThis->pDrv, pThis->apXmitRingBuffer[pThis->iXmitRingBufCons], cb);
2278 STAM_REL_COUNTER_ADD(&pThis->StatTransmitBytes, cb);
2279 pThis->Led.Actual.s.fWriting = 0;
2280 STAM_PROFILE_ADV_STOP(&pThis->StatTransmitSend, a);
2281
2282 int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
2283 AssertReleaseRC(rc);
2284
2285 pThis->cbXmitRingBuffer[pThis->iXmitRingBufCons] = 0;
2286 pThis->iXmitRingBufCons = (pThis->iXmitRingBufCons+1) & PCNET_MAX_XMIT_SLOTS_MASK;
2287 ASMAtomicDecS32(&pThis->cXmitRingBufPending);
2288 }
2289 return VINF_SUCCESS;
2290}
2291
2292static int pcnetSyncTransmit(PCNetState *pThis)
2293#else
2294static int pcnetAsyncTransmit(PCNetState *pThis)
2295#endif
2296{
2297 unsigned cFlushIrq = 0;
2298
2299 Assert(PDMCritSectIsOwner(&pThis->CritSect));
2300
2301 if (RT_UNLIKELY(!CSR_TXON(pThis)))
2302 {
2303 pThis->aCSR[0] &= ~0x0008; /* Clear TDMD */
2304 return VINF_SUCCESS;
2305 }
2306
2307 /*
2308 * Iterate the transmit descriptors.
2309 */
2310 STAM_PROFILE_ADV_START(&pThis->StatTransmit, a);
2311 do
2312 {
2313#ifdef VBOX_WITH_STATISTICS
2314 unsigned cBuffers = 1;
2315#endif
2316 TMD tmd;
2317 if (!pcnetTdtePoll(pThis, &tmd))
2318 break;
2319
2320 /* Don't continue sending packets when the link is down. */
2321 if (RT_UNLIKELY( !pcnetIsLinkUp(pThis)
2322 && pThis->cLinkDownReported > PCNET_MAX_LINKDOWN_REPORTED)
2323 )
2324 break;
2325
2326#ifdef PCNET_DEBUG_TMD
2327 Log2(("#%d TMDLOAD %#010x\n", PCNET_INST_NR, PHYSADDR(pThis, CSR_CXDA(pThis))));
2328 PRINT_TMD(&tmd);
2329#endif
2330 pcnetXmitScrapFrame(pThis);
2331
2332 /*
2333 * The typical case - a complete packet.
2334 */
2335 if (tmd.tmd1.stp && tmd.tmd1.enp)
2336 {
2337 const unsigned cb = 4096 - tmd.tmd1.bcnt;
2338 Log(("#%d pcnetTransmit: stp&enp: cb=%d xmtrc=%#x\n", PCNET_INST_NR, cb, CSR_XMTRC(pThis)));
2339
2340 if (RT_LIKELY(pcnetIsLinkUp(pThis) || CSR_LOOP(pThis)))
2341 {
2342 /* From the manual: ``A zero length buffer is acceptable as
2343 * long as it is not the last buffer in a chain (STP = 0 and
2344 * ENP = 1).'' That means that the first buffer might have a
2345 * zero length if it is not the last one in the chain. */
2346 if (RT_LIKELY(cb <= MAX_FRAME))
2347 {
2348 pcnetXmitRead1st(pThis, PHYSADDR(pThis, tmd.tmd0.tbadr), cb);
2349 if (CSR_LOOP(pThis))
2350 pcnetXmitLoopbackFrame(pThis);
2351 else
2352 {
2353 int rc = pcnetXmitCompleteFrame(pThis);
2354 AssertRCReturn(rc, rc);
2355 }
2356 }
2357 else if (cb == 4096)
2358 {
2359 /* The Windows NT4 pcnet driver sometimes marks the first
2360 * unused descriptor as owned by us. Ignore that (by
2361 * passing it back). Do not update the ring counter in this
2362 * case (otherwise that driver becomes even more confused,
2363 * which causes transmit to stall for about 10 seconds).
2364 * This is just a workaround, not a final solution. */
2365 /* r=frank: IMHO this is the correct implementation. The
2366 * manual says: ``If the OWN bit is set and the buffer
2367 * length is 0, the OWN bit will be cleared. In the C-LANCE
2368 * the buffer length of 0 is interpreted as a 4096-byte
2369 * buffer.'' */
2370 LogRel(("PCNet#%d: pcnetAsyncTransmit: illegal 4kb frame -> ignoring\n", PCNET_INST_NR));
2371 pcnetTmdStorePassHost(pThis, &tmd, PHYSADDR(pThis, CSR_CXDA(pThis)));
2372 break;
2373 }
2374 else
2375 {
2376 /* Signal error, as this violates the Ethernet specs. */
2377 /** @todo check if the correct error is generated. */
2378 LogRel(("PCNet#%d: pcnetAsyncTransmit: illegal 4kb frame -> signalling error\n", PCNET_INST_NR));
2379
2380 pcnetXmitFailTMDGeneric(pThis, &tmd);
2381 }
2382 }
2383 else
2384 pcnetXmitFailTMDLinkDown(pThis, &tmd);
2385
2386 /* Write back the TMD and pass it to the host (clear own bit). */
2387 pcnetTmdStorePassHost(pThis, &tmd, PHYSADDR(pThis, CSR_CXDA(pThis)));
2388
2389 /* advance the ring counter register */
2390 if (CSR_XMTRC(pThis) < 2)
2391 CSR_XMTRC(pThis) = CSR_XMTRL(pThis);
2392 else
2393 CSR_XMTRC(pThis)--;
2394 }
2395 else if (tmd.tmd1.stp)
2396 {
2397 /*
2398 * Read TMDs until end-of-packet or tdte poll fails (underflow).
2399 */
2400 bool fDropFrame = false;
2401 unsigned cb = 4096 - tmd.tmd1.bcnt;
2402 pcnetXmitRead1st(pThis, PHYSADDR(pThis, tmd.tmd0.tbadr), cb);
2403 for (;;)
2404 {
2405 /*
2406 * Advance the ring counter register and check the next tmd.
2407 */
2408#ifdef LOG_ENABLED
2409 const uint32_t iStart = CSR_XMTRC(pThis);
2410#endif
2411 const uint32_t GCPhysPrevTmd = PHYSADDR(pThis, CSR_CXDA(pThis));
2412 if (CSR_XMTRC(pThis) < 2)
2413 CSR_XMTRC(pThis) = CSR_XMTRL(pThis);
2414 else
2415 CSR_XMTRC(pThis)--;
2416
2417 TMD dummy;
2418 if (!pcnetTdtePoll(pThis, &dummy))
2419 {
2420 /*
2421 * Underflow!
2422 */
2423 tmd.tmd2.buff = tmd.tmd2.uflo = tmd.tmd1.err = 1;
2424 pThis->aCSR[0] |= 0x0200; /* set TINT */
2425 if (!CSR_DXSUFLO(pThis)) /* stop on xmit underflow */
2426 pThis->aCSR[0] &= ~0x0010; /* clear TXON */
2427 pcnetTmdStorePassHost(pThis, &tmd, GCPhysPrevTmd);
2428 AssertMsgFailed(("pcnetTransmit: Underflow!!!\n"));
2429 break;
2430 }
2431
2432 /* release & save the previous tmd, pass it to the host */
2433 pcnetTmdStorePassHost(pThis, &tmd, GCPhysPrevTmd);
2434
2435 /*
2436 * The next tdm.
2437 */
2438#ifdef VBOX_WITH_STATISTICS
2439 cBuffers++;
2440#endif
2441 pcnetTmdLoad(pThis, &tmd, PHYSADDR(pThis, CSR_CXDA(pThis)), false);
2442 cb = 4096 - tmd.tmd1.bcnt;
2443 if ( pThis->cbSendFrame + cb < MAX_FRAME
2444 && !fDropFrame)
2445 pcnetXmitReadMore(pThis, PHYSADDR(pThis, tmd.tmd0.tbadr), cb);
2446 else
2447 {
2448 AssertMsg(fDropFrame, ("pcnetTransmit: Frame is too big!!! %d bytes\n",
2449 pThis->cbSendFrame + cb));
2450 fDropFrame = true;
2451 }
2452 if (tmd.tmd1.enp)
2453 {
2454 Log(("#%d pcnetTransmit: stp: cb=%d xmtrc=%#x-%#x\n", PCNET_INST_NR,
2455 pThis->cbSendFrame, iStart, CSR_XMTRC(pThis)));
2456 if (pcnetIsLinkUp(pThis) && !fDropFrame)
2457 {
2458 int rc = pcnetXmitCompleteFrame(pThis);
2459 AssertRCReturn(rc, rc);
2460 }
2461 else if (CSR_LOOP(pThis) && !fDropFrame)
2462 pcnetXmitLoopbackFrame(pThis);
2463 else
2464 {
2465 if (!fDropFrame)
2466 pcnetXmitFailTMDLinkDown(pThis, &tmd);
2467 pcnetXmitScrapFrame(pThis);
2468 }
2469
2470 /* Write back the TMD, pass it to the host */
2471 pcnetTmdStorePassHost(pThis, &tmd, PHYSADDR(pThis, CSR_CXDA(pThis)));
2472
2473 /* advance the ring counter register */
2474 if (CSR_XMTRC(pThis) < 2)
2475 CSR_XMTRC(pThis) = CSR_XMTRL(pThis);
2476 else
2477 CSR_XMTRC(pThis)--;
2478 break;
2479 }
2480 }
2481 }
2482 else
2483 {
2484 /*
2485 * We underflowed in a previous transfer, or the driver is giving us shit.
2486 * Simply stop the transmitting for now.
2487 */
2488 /** @todo according to the specs we're supposed to clear the own bit and move on to the next one. */
2489 Log(("#%d pcnetTransmit: guest is giving us shit!\n", PCNET_INST_NR));
2490 break;
2491 }
2492 /* Update TDMD, TXSTRT and TINT. */
2493 pThis->aCSR[0] &= ~0x0008; /* clear TDMD */
2494
2495 pThis->aCSR[4] |= 0x0008; /* set TXSTRT */
2496 if ( !CSR_TOKINTD(pThis) /* Transmit OK Interrupt Disable, no infl. on errors. */
2497 || (CSR_LTINTEN(pThis) && tmd.tmd1.ltint)
2498 || tmd.tmd1.err)
2499 {
2500 cFlushIrq++;
2501 }
2502
2503 /** @todo should we continue after an error (tmd.tmd1.err) or not? */
2504
2505 STAM_COUNTER_INC(&pThis->aStatXmitChainCounts[RT_MIN(cBuffers,
2506 RT_ELEMENTS(pThis->aStatXmitChainCounts)) - 1]);
2507 } while (CSR_TXON(pThis)); /* transfer on */
2508
2509 if (cFlushIrq)
2510 {
2511 STAM_COUNTER_INC(&pThis->aStatXmitFlush[RT_MIN(cFlushIrq, RT_ELEMENTS(pThis->aStatXmitFlush)) - 1]);
2512 pThis->aCSR[0] |= 0x0200; /* set TINT */
2513 pcnetUpdateIrq(pThis);
2514 }
2515
2516 STAM_PROFILE_ADV_STOP(&pThis->StatTransmit, a);
2517
2518 return VINF_SUCCESS;
2519}
2520
2521
2522/**
2523 * Async I/O thread for delayed sending of packets.
2524 *
2525 * @returns VBox status code. Returning failure will naturally terminate the thread.
2526 * @param pDevIns The pcnet device instance.
2527 * @param pThread The thread.
2528 */
2529static DECLCALLBACK(int) pcnetAsyncSendThread(PPDMDEVINS pDevIns, PPDMTHREAD pThread)
2530{
2531 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
2532
2533 /*
2534 * We can enter this function in two states, initializing or resuming.
2535 *
2536 * The idea about the initializing bit is that we can do per-thread
2537 * initialization while the creator thread can still pick up errors.
2538 * At present, there is nothing to init, or at least nothing that
2539 * need initing in the thread.
2540 */
2541 if (pThread->enmState == PDMTHREADSTATE_INITIALIZING)
2542 return VINF_SUCCESS;
2543
2544 /*
2545 * Stay in the run-loop until we're supposed to leave the
2546 * running state. If something really bad happens, we'll
2547 * quit the loop while in the running state and return
2548 * an error status to PDM and let it terminate the thread.
2549 */
2550 while (pThread->enmState == PDMTHREADSTATE_RUNNING)
2551 {
2552 /*
2553 * Block until we've got something to send or is supposed
2554 * to leave the running state.
2555 */
2556 int rc = RTSemEventWait(pThis->hSendEventSem, RT_INDEFINITE_WAIT);
2557 AssertRCReturn(rc, rc);
2558 if (RT_UNLIKELY(pThread->enmState != PDMTHREADSTATE_RUNNING))
2559 break;
2560
2561 /*
2562 * Perform async send. Mind that we might be requested to
2563 * suspended while waiting for the critical section.
2564 */
2565 rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
2566 AssertReleaseRCReturn(rc, rc);
2567
2568 if (pThread->enmState == PDMTHREADSTATE_RUNNING)
2569 {
2570 rc = pcnetAsyncTransmit(pThis);
2571 AssertReleaseRC(rc);
2572 }
2573
2574 PDMCritSectLeave(&pThis->CritSect);
2575 }
2576
2577 /* The thread is being suspended or terminated. */
2578 return VINF_SUCCESS;
2579}
2580
2581
2582/**
2583 * Unblock the send thread so it can respond to a state change.
2584 *
2585 * @returns VBox status code.
2586 * @param pDevIns The pcnet device instance.
2587 * @param pThread The send thread.
2588 */
2589static DECLCALLBACK(int) pcnetAsyncSendThreadWakeUp(PPDMDEVINS pDevIns, PPDMTHREAD pThread)
2590{
2591 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
2592 return RTSemEventSignal(pThis->hSendEventSem);
2593}
2594
2595#endif /* IN_RING3 */
2596
2597/**
2598 * Poll for changes in RX and TX descriptor rings.
2599 */
2600static void pcnetPollRxTx(PCNetState *pThis)
2601{
2602 if (CSR_RXON(pThis))
2603 if (HOST_IS_OWNER(CSR_CRST(pThis))) /* Only poll RDTEs if none available */
2604 pcnetRdtePoll(pThis);
2605
2606 if (CSR_TDMD(pThis) || (CSR_TXON(pThis) && !CSR_DPOLL(pThis)))
2607 pcnetTransmit(pThis);
2608}
2609
2610
2611/**
2612 * Start the poller timer.
2613 * Poll timer interval is fixed to 500Hz. Don't stop it.
2614 * @thread EMT, TAP.
2615 */
2616static void pcnetPollTimerStart(PCNetState *pThis)
2617{
2618 TMTimerSetMillies(pThis->CTX_SUFF(pTimerPoll), 2);
2619}
2620
2621
2622/**
2623 * Update the poller timer.
2624 * @thread EMT.
2625 */
2626static void pcnetPollTimer(PCNetState *pThis)
2627{
2628 STAM_PROFILE_ADV_START(&pThis->StatPollTimer, a);
2629
2630#ifdef LOG_ENABLED
2631 TMD dummy;
2632 if (CSR_STOP(pThis) || CSR_SPND(pThis))
2633 Log2(("#%d pcnetPollTimer time=%#010llx CSR_STOP=%d CSR_SPND=%d\n",
2634 PCNET_INST_NR, RTTimeMilliTS(), CSR_STOP(pThis), CSR_SPND(pThis)));
2635 else
2636 Log2(("#%d pcnetPollTimer time=%#010llx TDMD=%d TXON=%d POLL=%d TDTE=%d TDRA=%#x\n",
2637 PCNET_INST_NR, RTTimeMilliTS(), CSR_TDMD(pThis), CSR_TXON(pThis),
2638 !CSR_DPOLL(pThis), pcnetTdtePoll(pThis, &dummy), pThis->GCTDRA));
2639 Log2(("#%d pcnetPollTimer: CSR_CXDA=%#x CSR_XMTRL=%d CSR_XMTRC=%d\n",
2640 PCNET_INST_NR, CSR_CXDA(pThis), CSR_XMTRL(pThis), CSR_XMTRC(pThis)));
2641#endif
2642#ifdef PCNET_DEBUG_TMD
2643 if (CSR_CXDA(pThis))
2644 {
2645 TMD tmd;
2646 pcnetTmdLoad(pThis, &tmd, PHYSADDR(pThis, CSR_CXDA(pThis)), false);
2647 Log2(("#%d pcnetPollTimer: TMDLOAD %#010x\n", PCNET_INST_NR, PHYSADDR(pThis, CSR_CXDA(pThis))));
2648 PRINT_TMD(&tmd);
2649 }
2650#endif
2651 if (CSR_TDMD(pThis))
2652 pcnetTransmit(pThis);
2653
2654 pcnetUpdateIrq(pThis);
2655
2656 /* If the receive thread is waiting for new descriptors, poll TX/RX even if polling
2657 * disabled. We wouldn't need to poll for new TX descriptors in that case but it will
2658 * not hurt as waiting for RX descriptors should occur very seldom */
2659 if (RT_LIKELY( !CSR_STOP(pThis)
2660 && !CSR_SPND(pThis)
2661 && ( !CSR_DPOLL(pThis)
2662 || pThis->fMaybeOutOfSpace)))
2663 {
2664 /* We ensure that we poll at least every 2ms (500Hz) but not more often than
2665 * 5000 times per second. This way we completely prevent the overhead from
2666 * heavy reprogramming the timer which turned out to be very CPU-intensive.
2667 * The drawback is that csr46 and csr47 are not updated properly anymore
2668 * but so far I have not seen any guest depending on these values. The 2ms
2669 * interval is the default polling interval of the PCNet card (65536/33MHz). */
2670#ifdef PCNET_NO_POLLING
2671 pcnetPollRxTx(pThis);
2672#else
2673 uint64_t u64Now = TMTimerGet(pThis->CTX_SUFF(pTimerPoll));
2674 if (RT_UNLIKELY(u64Now - pThis->u64LastPoll > 200000))
2675 {
2676 pThis->u64LastPoll = u64Now;
2677 pcnetPollRxTx(pThis);
2678 }
2679 if (!TMTimerIsActive(pThis->CTX_SUFF(pTimerPoll)))
2680 pcnetPollTimerStart(pThis);
2681#endif
2682 }
2683 STAM_PROFILE_ADV_STOP(&pThis->StatPollTimer, a);
2684}
2685
2686
2687static int pcnetCSRWriteU16(PCNetState *pThis, uint32_t u32RAP, uint32_t val)
2688{
2689 int rc = VINF_SUCCESS;
2690#ifdef PCNET_DEBUG_CSR
2691 Log(("#%d pcnetCSRWriteU16: rap=%d val=%#06x\n", PCNET_INST_NR, u32RAP, val));
2692#endif
2693 switch (u32RAP)
2694 {
2695 case 0:
2696 {
2697 uint16_t csr0 = pThis->aCSR[0];
2698 /* Clear any interrupt flags.
2699 * Don't clear an interrupt flag which was not seen by the guest yet. */
2700 csr0 &= ~(val & 0x7f00 & pThis->u16CSR0LastSeenByGuest);
2701 csr0 = (csr0 & ~0x0040) | (val & 0x0048);
2702 val = (val & 0x007f) | (csr0 & 0x7f00);
2703
2704 /* Iff STOP, STRT and INIT are set, clear STRT and INIT */
2705 if ((val & 7) == 7)
2706 val &= ~3;
2707
2708 Log(("#%d CSR0: old=%#06x new=%#06x\n", PCNET_INST_NR, pThis->aCSR[0], csr0));
2709
2710#ifndef IN_RING3
2711 if (!(csr0 & 0x0001/*init*/) && (val & 1))
2712 {
2713 Log(("#%d pcnetCSRWriteU16: pcnetInit requested => HC\n", PCNET_INST_NR));
2714 return VINF_IOM_HC_IOPORT_WRITE;
2715 }
2716#endif
2717 pThis->aCSR[0] = csr0;
2718
2719 if (!CSR_STOP(pThis) && (val & 4))
2720 pcnetStop(pThis);
2721
2722#ifdef IN_RING3
2723 if (!CSR_INIT(pThis) && (val & 1))
2724 pcnetInit(pThis);
2725#endif
2726
2727 if (!CSR_STRT(pThis) && (val & 2))
2728 pcnetStart(pThis);
2729
2730 if (CSR_TDMD(pThis))
2731 pcnetTransmit(pThis);
2732
2733 return rc;
2734 }
2735 case 1: /* IADRL */
2736 case 2: /* IADRH */
2737 case 8: /* LADRF 0..15 */
2738 case 9: /* LADRF 16..31 */
2739 case 10: /* LADRF 32..47 */
2740 case 11: /* LADRF 48..63 */
2741 case 12: /* PADR 0..15 */
2742 case 13: /* PADR 16..31 */
2743 case 14: /* PADR 32..47 */
2744 case 18: /* CRBAL */
2745 case 19: /* CRBAU */
2746 case 20: /* CXBAL */
2747 case 21: /* CXBAU */
2748 case 22: /* NRBAL */
2749 case 23: /* NRBAU */
2750 case 26: /* NRDAL */
2751 case 27: /* NRDAU */
2752 case 28: /* CRDAL */
2753 case 29: /* CRDAU */
2754 case 32: /* NXDAL */
2755 case 33: /* NXDAU */
2756 case 34: /* CXDAL */
2757 case 35: /* CXDAU */
2758 case 36: /* NNRDL */
2759 case 37: /* NNRDU */
2760 case 38: /* NNXDL */
2761 case 39: /* NNXDU */
2762 case 40: /* CRBCL */
2763 case 41: /* CRBCU */
2764 case 42: /* CXBCL */
2765 case 43: /* CXBCU */
2766 case 44: /* NRBCL */
2767 case 45: /* NRBCU */
2768 case 46: /* POLL */
2769 case 47: /* POLLINT */
2770 case 72: /* RCVRC */
2771 case 74: /* XMTRC */
2772 case 112: /* MISSC */
2773 if (CSR_STOP(pThis) || CSR_SPND(pThis))
2774 break;
2775 case 3: /* Interrupt Mask and Deferral Control */
2776 break;
2777 case 4: /* Test and Features Control */
2778 pThis->aCSR[4] &= ~(val & 0x026a);
2779 val &= ~0x026a;
2780 val |= pThis->aCSR[4] & 0x026a;
2781 break;
2782 case 5: /* Extended Control and Interrupt 1 */
2783 pThis->aCSR[5] &= ~(val & 0x0a90);
2784 val &= ~0x0a90;
2785 val |= pThis->aCSR[5] & 0x0a90;
2786 break;
2787 case 7: /* Extended Control and Interrupt 2 */
2788 {
2789 uint16_t csr7 = pThis->aCSR[7];
2790 csr7 &= ~0x0400 ;
2791 csr7 &= ~(val & 0x0800);
2792 csr7 |= (val & 0x0400);
2793 pThis->aCSR[7] = csr7;
2794 return rc;
2795 }
2796 case 15: /* Mode */
2797 if ((pThis->aCSR[15] & 0x8000) != (val & 0x8000) && pThis->pDrv)
2798 {
2799 Log(("#%d: promiscuous mode changed to %d\n", PCNET_INST_NR, !!(val & 0x8000)));
2800#ifndef IN_RING3
2801 return VINF_IOM_HC_IOPORT_WRITE;
2802#else
2803 /* check for promiscuous mode change */
2804 if (pThis->pDrv)
2805 pThis->pDrv->pfnSetPromiscuousMode(pThis->pDrv, !!(val & 0x8000));
2806#endif
2807 }
2808 break;
2809 case 16: /* IADRL */
2810 return pcnetCSRWriteU16(pThis, 1, val);
2811 case 17: /* IADRH */
2812 return pcnetCSRWriteU16(pThis, 2, val);
2813
2814 /*
2815 * 24 and 25 are the Base Address of Receive Descriptor.
2816 * We combine and mirror these in GCRDRA.
2817 */
2818 case 24: /* BADRL */
2819 case 25: /* BADRU */
2820 if (!CSR_STOP(pThis) && !CSR_SPND(pThis))
2821 {
2822 Log(("#%d: WRITE CSR%d, %#06x !!\n", PCNET_INST_NR, u32RAP, val));
2823 return rc;
2824 }
2825 if (u32RAP == 24)
2826 pThis->GCRDRA = (pThis->GCRDRA & 0xffff0000) | (val & 0x0000ffff);
2827 else
2828 pThis->GCRDRA = (pThis->GCRDRA & 0x0000ffff) | ((val & 0x0000ffff) << 16);
2829 Log(("#%d: WRITE CSR%d, %#06x => GCRDRA=%08x (alt init)\n", PCNET_INST_NR, u32RAP, val, pThis->GCRDRA));
2830 break;
2831
2832 /*
2833 * 30 & 31 are the Base Address of Transmit Descriptor.
2834 * We combine and mirrorthese in GCTDRA.
2835 */
2836 case 30: /* BADXL */
2837 case 31: /* BADXU */
2838 if (!CSR_STOP(pThis) && !CSR_SPND(pThis))
2839 {
2840 Log(("#%d: WRITE CSR%d, %#06x !!\n", PCNET_INST_NR, u32RAP, val));
2841 return rc;
2842 }
2843 if (u32RAP == 30)
2844 pThis->GCTDRA = (pThis->GCTDRA & 0xffff0000) | (val & 0x0000ffff);
2845 else
2846 pThis->GCTDRA = (pThis->GCTDRA & 0x0000ffff) | ((val & 0x0000ffff) << 16);
2847 Log(("#%d: WRITE CSR%d, %#06x => GCTDRA=%08x (alt init)\n", PCNET_INST_NR, u32RAP, val, pThis->GCTDRA));
2848 break;
2849
2850 case 58: /* Software Style */
2851 rc = pcnetBCRWriteU16(pThis, BCR_SWS, val);
2852 break;
2853
2854 /*
2855 * Registers 76 and 78 aren't stored correctly (see todos), but I'm don't dare
2856 * try fix that right now. So, as a quick hack for 'alt init' I'll just correct them here.
2857 */
2858 case 76: /* RCVRL */ /** @todo call pcnetUpdateRingHandlers */
2859 /** @todo receive ring length is stored in two's complement! */
2860 case 78: /* XMTRL */ /** @todo call pcnetUpdateRingHandlers */
2861 /** @todo transmit ring length is stored in two's complement! */
2862 if (!CSR_STOP(pThis) && !CSR_SPND(pThis))
2863 {
2864 Log(("#%d: WRITE CSR%d, %#06x !!\n", PCNET_INST_NR, u32RAP, val));
2865 return rc;
2866 }
2867 Log(("#%d: WRITE CSR%d, %#06x (hacked %#06x) (alt init)\n", PCNET_INST_NR,
2868 u32RAP, val, 1 + ~(uint16_t)val));
2869 val = 1 + ~(uint16_t)val;
2870
2871 /*
2872 * HACK ALERT! Set the counter registers too.
2873 */
2874 pThis->aCSR[u32RAP - 4] = val;
2875 break;
2876
2877 default:
2878 return rc;
2879 }
2880 pThis->aCSR[u32RAP] = val;
2881 return rc;
2882}
2883
2884/**
2885 * Encode a 32-bit link speed into a custom 16-bit floating-point value
2886 */
2887static uint32_t pcnetLinkSpd(uint32_t speed)
2888{
2889 unsigned exp = 0;
2890
2891 while (speed & 0xFFFFE000)
2892 {
2893 speed /= 10;
2894 ++exp;
2895 }
2896 return (exp << 13) | speed;
2897}
2898
2899static uint32_t pcnetCSRReadU16(PCNetState *pThis, uint32_t u32RAP)
2900{
2901 uint32_t val;
2902 switch (u32RAP)
2903 {
2904 case 0:
2905 pcnetUpdateIrq(pThis);
2906 val = pThis->aCSR[0];
2907 val |= (val & 0x7800) ? 0x8000 : 0;
2908 pThis->u16CSR0LastSeenByGuest = val;
2909 break;
2910 case 16:
2911 return pcnetCSRReadU16(pThis, 1);
2912 case 17:
2913 return pcnetCSRReadU16(pThis, 2);
2914 case 58:
2915 return pcnetBCRReadU16(pThis, BCR_SWS);
2916 case 68: /* Custom register to pass link speed to driver */
2917 return pcnetLinkSpd(pThis->u32LinkSpeed);
2918 case 88:
2919 val = pThis->aCSR[89];
2920 val <<= 16;
2921 val |= pThis->aCSR[88];
2922 break;
2923 default:
2924 val = pThis->aCSR[u32RAP];
2925 }
2926#ifdef PCNET_DEBUG_CSR
2927 Log(("#%d pcnetCSRReadU16: rap=%d val=%#06x\n", PCNET_INST_NR, u32RAP, val));
2928#endif
2929 return val;
2930}
2931
2932static int pcnetBCRWriteU16(PCNetState *pThis, uint32_t u32RAP, uint32_t val)
2933{
2934 int rc = VINF_SUCCESS;
2935 u32RAP &= 0x7f;
2936#ifdef PCNET_DEBUG_BCR
2937 Log2(("#%d pcnetBCRWriteU16: rap=%d val=%#06x\n", PCNET_INST_NR, u32RAP, val));
2938#endif
2939 switch (u32RAP)
2940 {
2941 case BCR_SWS:
2942 if (!(CSR_STOP(pThis) || CSR_SPND(pThis)))
2943 return rc;
2944 val &= ~0x0300;
2945 switch (val & 0x00ff)
2946 {
2947 default:
2948 Log(("#%d Bad SWSTYLE=%#04x\n", PCNET_INST_NR, val & 0xff));
2949 // fall through
2950 case 0:
2951 val |= 0x0200; /* 16 bit */
2952 pThis->iLog2DescSize = 3;
2953 pThis->GCUpperPhys = (0xff00 & (uint32_t)pThis->aCSR[2]) << 16;
2954 break;
2955 case 1:
2956 val |= 0x0100; /* 32 bit */
2957 pThis->iLog2DescSize = 4;
2958 pThis->GCUpperPhys = 0;
2959 break;
2960 case 2:
2961 case 3:
2962 val |= 0x0300; /* 32 bit */
2963 pThis->iLog2DescSize = 4;
2964 pThis->GCUpperPhys = 0;
2965 break;
2966 }
2967 Log(("#%d BCR_SWS=%#06x\n", PCNET_INST_NR, val));
2968 pThis->aCSR[58] = val;
2969 /* fall through */
2970 case BCR_LNKST:
2971 case BCR_LED1:
2972 case BCR_LED2:
2973 case BCR_LED3:
2974 case BCR_MC:
2975 case BCR_FDC:
2976 case BCR_BSBC:
2977 case BCR_EECAS:
2978 case BCR_PLAT:
2979 case BCR_MIICAS:
2980 case BCR_MIIADDR:
2981 pThis->aBCR[u32RAP] = val;
2982 break;
2983
2984 case BCR_STVAL:
2985 val &= 0xffff;
2986 pThis->aBCR[BCR_STVAL] = val;
2987 if (pThis->fAm79C973)
2988 TMTimerSetNano(pThis->CTX_SUFF(pTimerSoftInt), 12800U * val);
2989 break;
2990
2991 case BCR_MIIMDR:
2992 pThis->aMII[pThis->aBCR[BCR_MIIADDR] & 0x1f] = val;
2993#ifdef PCNET_DEBUG_MII
2994 Log(("#%d pcnet: mii write %d <- %#x\n", PCNET_INST_NR, pThis->aBCR[BCR_MIIADDR] & 0x1f, val));
2995#endif
2996 break;
2997
2998 default:
2999 break;
3000 }
3001 return rc;
3002}
3003
3004static uint32_t pcnetMIIReadU16(PCNetState *pThis, uint32_t miiaddr)
3005{
3006 uint32_t val;
3007 bool autoneg, duplex, fast;
3008 STAM_COUNTER_INC(&pThis->StatMIIReads);
3009
3010 autoneg = (pThis->aBCR[BCR_MIICAS] & 0x20) != 0;
3011 duplex = (pThis->aBCR[BCR_MIICAS] & 0x10) != 0;
3012 fast = (pThis->aBCR[BCR_MIICAS] & 0x08) != 0;
3013
3014 switch (miiaddr)
3015 {
3016 case 0:
3017 /* MII basic mode control register. */
3018 val = 0;
3019 if (autoneg)
3020 val |= 0x1000; /* Enable auto negotiation. */
3021 if (fast)
3022 val |= 0x2000; /* 100 Mbps */
3023 if (duplex) /* Full duplex forced */
3024 val |= 0x0100; /* Full duplex */
3025 break;
3026
3027 case 1:
3028 /* MII basic mode status register. */
3029 val = 0x7800 /* Can do 100mbps FD/HD and 10mbps FD/HD. */
3030 | 0x0040 /* Mgmt frame preamble not required. */
3031 | 0x0020 /* Auto-negotiation complete. */
3032 | 0x0008 /* Able to do auto-negotiation. */
3033 | 0x0004 /* Link up. */
3034 | 0x0001; /* Extended Capability, i.e. registers 4+ valid. */
3035 if (!pThis->fLinkUp || pThis->fLinkTempDown) {
3036 val &= ~(0x0020 | 0x0004);
3037 pThis->cLinkDownReported++;
3038 }
3039 if (!autoneg) {
3040 /* Auto-negotiation disabled. */
3041 val &= ~(0x0020 | 0x0008);
3042 if (duplex)
3043 /* Full duplex forced. */
3044 val &= ~0x2800;
3045 else
3046 /* Half duplex forced. */
3047 val &= ~0x5000;
3048
3049 if (fast)
3050 /* 100 Mbps forced */
3051 val &= ~0x1800;
3052 else
3053 /* 10 Mbps forced */
3054 val &= ~0x6000;
3055 }
3056 break;
3057
3058 case 2:
3059 /* PHY identifier 1. */
3060 val = 0x22; /* Am79C874 PHY */
3061 break;
3062
3063 case 3:
3064 /* PHY identifier 2. */
3065 val = 0x561b; /* Am79C874 PHY */
3066 break;
3067
3068 case 4:
3069 /* Advertisement control register. */
3070 val = 0x01e0 /* Try 100mbps FD/HD and 10mbps FD/HD. */
3071#if 0
3072 // Advertising flow control is a) not the default, and b) confuses
3073 // the link speed detection routine in Windows PCnet driver
3074 | 0x0400 /* Try flow control. */
3075#endif
3076 | 0x0001; /* CSMA selector. */
3077 break;
3078
3079 case 5:
3080 /* Link partner ability register. */
3081 if (pThis->fLinkUp && !pThis->fLinkTempDown)
3082 val = 0x8000 /* Next page bit. */
3083 | 0x4000 /* Link partner acked us. */
3084 | 0x0400 /* Can do flow control. */
3085 | 0x01e0 /* Can do 100mbps FD/HD and 10mbps FD/HD. */
3086 | 0x0001; /* Use CSMA selector. */
3087 else
3088 {
3089 val = 0;
3090 pThis->cLinkDownReported++;
3091 }
3092 break;
3093
3094 case 6:
3095 /* Auto negotiation expansion register. */
3096 if (pThis->fLinkUp && !pThis->fLinkTempDown)
3097 val = 0x0008 /* Link partner supports npage. */
3098 | 0x0004 /* Enable npage words. */
3099 | 0x0001; /* Can do N-way auto-negotiation. */
3100 else
3101 {
3102 val = 0;
3103 pThis->cLinkDownReported++;
3104 }
3105 break;
3106
3107 default:
3108 val = 0;
3109 break;
3110 }
3111
3112#ifdef PCNET_DEBUG_MII
3113 Log(("#%d pcnet: mii read %d -> %#x\n", PCNET_INST_NR, miiaddr, val));
3114#endif
3115 return val;
3116}
3117
3118static uint32_t pcnetBCRReadU16(PCNetState *pThis, uint32_t u32RAP)
3119{
3120 uint32_t val;
3121 u32RAP &= 0x7f;
3122 switch (u32RAP)
3123 {
3124 case BCR_LNKST:
3125 case BCR_LED1:
3126 case BCR_LED2:
3127 case BCR_LED3:
3128 val = pThis->aBCR[u32RAP] & ~0x8000;
3129 /* Clear LNKSTE if we're not connected or if we've just loaded a VM state. */
3130 if (!pThis->pDrv || pThis->fLinkTempDown || !pThis->fLinkUp)
3131 {
3132 if (u32RAP == 4)
3133 pThis->cLinkDownReported++;
3134 val &= ~0x40;
3135 }
3136 val |= (val & 0x017f & pThis->u32Lnkst) ? 0x8000 : 0;
3137 break;
3138
3139 case BCR_MIIMDR:
3140 if (pThis->fAm79C973 && (pThis->aBCR[BCR_MIIADDR] >> 5 & 0x1f) == 0)
3141 {
3142 uint32_t miiaddr = pThis->aBCR[BCR_MIIADDR] & 0x1f;
3143 val = pcnetMIIReadU16(pThis, miiaddr);
3144 }
3145 else
3146 val = 0xffff;
3147 break;
3148
3149 default:
3150 val = u32RAP < BCR_MAX_RAP ? pThis->aBCR[u32RAP] : 0;
3151 break;
3152 }
3153#ifdef PCNET_DEBUG_BCR
3154 Log2(("#%d pcnetBCRReadU16: rap=%d val=%#06x\n", PCNET_INST_NR, u32RAP, val));
3155#endif
3156 return val;
3157}
3158
3159#ifdef IN_RING3 /* move down */
3160static void pcnetHardReset(PCNetState *pThis)
3161{
3162 int i;
3163 uint16_t checksum;
3164
3165 /* Initialize the PROM */
3166 Assert(sizeof(pThis->MacConfigured) == 6);
3167 memcpy(pThis->aPROM, &pThis->MacConfigured, sizeof(pThis->MacConfigured));
3168 pThis->aPROM[ 8] = 0x00;
3169 pThis->aPROM[ 9] = 0x11;
3170 pThis->aPROM[12] = pThis->aPROM[13] = 0x00;
3171 pThis->aPROM[14] = pThis->aPROM[15] = 0x57;
3172
3173 for (i = 0, checksum = 0; i < 16; i++)
3174 checksum += pThis->aPROM[i];
3175 *(uint16_t *)&pThis->aPROM[12] = RT_H2LE_U16(checksum);
3176
3177 pThis->aBCR[BCR_MSRDA] = 0x0005;
3178 pThis->aBCR[BCR_MSWRA] = 0x0005;
3179 pThis->aBCR[BCR_MC ] = 0x0002;
3180 pThis->aBCR[BCR_LNKST] = 0x00c0;
3181 pThis->aBCR[BCR_LED1 ] = 0x0084;
3182 pThis->aBCR[BCR_LED2 ] = 0x0088;
3183 pThis->aBCR[BCR_LED3 ] = 0x0090;
3184 pThis->aBCR[BCR_FDC ] = 0x0000;
3185 pThis->aBCR[BCR_BSBC ] = 0x9001;
3186 pThis->aBCR[BCR_EECAS] = 0x0002;
3187 pThis->aBCR[BCR_STVAL] = 0xffff;
3188 pThis->aCSR[58 ] = /* CSR58 is an alias for BCR20 */
3189 pThis->aBCR[BCR_SWS ] = 0x0200;
3190 pThis->iLog2DescSize = 3;
3191 pThis->aBCR[BCR_PLAT ] = 0xff06;
3192 pThis->aBCR[BCR_MIIADDR ] = 0; /* Internal PHY on Am79C973 would be (0x1e << 5) */
3193 pThis->aBCR[BCR_PCIVID] = PCIDevGetVendorId(&pThis->PciDev);
3194 pThis->aBCR[BCR_PCISID] = PCIDevGetSubSystemId(&pThis->PciDev);
3195 pThis->aBCR[BCR_PCISVID] = PCIDevGetSubSystemVendorId(&pThis->PciDev);
3196
3197 pcnetSoftReset(pThis);
3198}
3199#endif /* IN_RING3 */
3200
3201static void pcnetAPROMWriteU8(PCNetState *pThis, uint32_t addr, uint32_t val)
3202{
3203 addr &= 0x0f;
3204 val &= 0xff;
3205 Log(("#%d pcnetAPROMWriteU8: addr=%#010x val=%#04x\n", PCNET_INST_NR, addr, val));
3206 /* Check APROMWE bit to enable write access */
3207 if (pcnetBCRReadU16(pThis, 2) & 0x80)
3208 pThis->aPROM[addr] = val;
3209}
3210
3211static uint32_t pcnetAPROMReadU8(PCNetState *pThis, uint32_t addr)
3212{
3213 uint32_t val = pThis->aPROM[addr &= 0x0f];
3214 Log(("#%d pcnetAPROMReadU8: addr=%#010x val=%#04x\n", PCNET_INST_NR, addr, val));
3215 return val;
3216}
3217
3218static int pcnetIoportWriteU8(PCNetState *pThis, uint32_t addr, uint32_t val)
3219{
3220 int rc = VINF_SUCCESS;
3221
3222#ifdef PCNET_DEBUG_IO
3223 Log2(("#%d pcnetIoportWriteU8: addr=%#010x val=%#06x\n", PCNET_INST_NR,
3224 addr, val));
3225#endif
3226 if (RT_LIKELY(!BCR_DWIO(pThis)))
3227 {
3228 switch (addr & 0x0f)
3229 {
3230 case 0x04: /* RESET */
3231 break;
3232 }
3233 }
3234 else
3235 Log(("#%d pcnetIoportWriteU8: addr=%#010x val=%#06x BCR_DWIO !!\n", PCNET_INST_NR, addr, val));
3236
3237 return rc;
3238}
3239
3240static uint32_t pcnetIoportReadU8(PCNetState *pThis, uint32_t addr, int *pRC)
3241{
3242 uint32_t val = ~0U;
3243
3244 *pRC = VINF_SUCCESS;
3245
3246 if (RT_LIKELY(!BCR_DWIO(pThis)))
3247 {
3248 switch (addr & 0x0f)
3249 {
3250 case 0x04: /* RESET */
3251 pcnetSoftReset(pThis);
3252 val = 0;
3253 break;
3254 }
3255 }
3256 else
3257 Log(("#%d pcnetIoportReadU8: addr=%#010x val=%#06x BCR_DWIO !!\n", PCNET_INST_NR, addr, val & 0xff));
3258
3259 pcnetUpdateIrq(pThis);
3260
3261#ifdef PCNET_DEBUG_IO
3262 Log2(("#%d pcnetIoportReadU8: addr=%#010x val=%#06x\n", PCNET_INST_NR, addr, val & 0xff));
3263#endif
3264 return val;
3265}
3266
3267static int pcnetIoportWriteU16(PCNetState *pThis, uint32_t addr, uint32_t val)
3268{
3269 int rc = VINF_SUCCESS;
3270
3271#ifdef PCNET_DEBUG_IO
3272 Log2(("#%d pcnetIoportWriteU16: addr=%#010x val=%#06x\n", PCNET_INST_NR,
3273 addr, val));
3274#endif
3275 if (RT_LIKELY(!BCR_DWIO(pThis)))
3276 {
3277 switch (addr & 0x0f)
3278 {
3279 case 0x00: /* RDP */
3280 pcnetPollTimer(pThis);
3281 rc = pcnetCSRWriteU16(pThis, pThis->u32RAP, val);
3282 pcnetUpdateIrq(pThis);
3283 break;
3284 case 0x02: /* RAP */
3285 pThis->u32RAP = val & 0x7f;
3286 break;
3287 case 0x06: /* BDP */
3288 rc = pcnetBCRWriteU16(pThis, pThis->u32RAP, val);
3289 break;
3290 }
3291 }
3292 else
3293 Log(("#%d pcnetIoportWriteU16: addr=%#010x val=%#06x BCR_DWIO !!\n", PCNET_INST_NR, addr, val));
3294
3295 return rc;
3296}
3297
3298static uint32_t pcnetIoportReadU16(PCNetState *pThis, uint32_t addr, int *pRC)
3299{
3300 uint32_t val = ~0U;
3301
3302 *pRC = VINF_SUCCESS;
3303
3304 if (RT_LIKELY(!BCR_DWIO(pThis)))
3305 {
3306 switch (addr & 0x0f)
3307 {
3308 case 0x00: /* RDP */
3309 /** @note if we're not polling, then the guest will tell us when to poll by setting TDMD in CSR0 */
3310 /** Polling is then useless here and possibly expensive. */
3311 if (!CSR_DPOLL(pThis))
3312 pcnetPollTimer(pThis);
3313
3314 val = pcnetCSRReadU16(pThis, pThis->u32RAP);
3315 if (pThis->u32RAP == 0) // pcnetUpdateIrq() already called by pcnetCSRReadU16()
3316 goto skip_update_irq;
3317 break;
3318 case 0x02: /* RAP */
3319 val = pThis->u32RAP;
3320 goto skip_update_irq;
3321 case 0x04: /* RESET */
3322 pcnetSoftReset(pThis);
3323 val = 0;
3324 break;
3325 case 0x06: /* BDP */
3326 val = pcnetBCRReadU16(pThis, pThis->u32RAP);
3327 break;
3328 }
3329 }
3330 else
3331 Log(("#%d pcnetIoportReadU16: addr=%#010x val=%#06x BCR_DWIO !!\n", PCNET_INST_NR, addr, val & 0xffff));
3332
3333 pcnetUpdateIrq(pThis);
3334
3335skip_update_irq:
3336#ifdef PCNET_DEBUG_IO
3337 Log2(("#%d pcnetIoportReadU16: addr=%#010x val=%#06x\n", PCNET_INST_NR, addr, val & 0xffff));
3338#endif
3339 return val;
3340}
3341
3342static int pcnetIoportWriteU32(PCNetState *pThis, uint32_t addr, uint32_t val)
3343{
3344 int rc = VINF_SUCCESS;
3345
3346#ifdef PCNET_DEBUG_IO
3347 Log2(("#%d pcnetIoportWriteU32: addr=%#010x val=%#010x\n", PCNET_INST_NR,
3348 addr, val));
3349#endif
3350 if (RT_LIKELY(BCR_DWIO(pThis)))
3351 {
3352 switch (addr & 0x0f)
3353 {
3354 case 0x00: /* RDP */
3355 pcnetPollTimer(pThis);
3356 rc = pcnetCSRWriteU16(pThis, pThis->u32RAP, val & 0xffff);
3357 pcnetUpdateIrq(pThis);
3358 break;
3359 case 0x04: /* RAP */
3360 pThis->u32RAP = val & 0x7f;
3361 break;
3362 case 0x0c: /* BDP */
3363 rc = pcnetBCRWriteU16(pThis, pThis->u32RAP, val & 0xffff);
3364 break;
3365 }
3366 }
3367 else if ((addr & 0x0f) == 0)
3368 {
3369 /* switch device to dword I/O mode */
3370 pcnetBCRWriteU16(pThis, BCR_BSBC, pcnetBCRReadU16(pThis, BCR_BSBC) | 0x0080);
3371#ifdef PCNET_DEBUG_IO
3372 Log2(("device switched into dword i/o mode\n"));
3373#endif
3374 }
3375 else
3376 Log(("#%d pcnetIoportWriteU32: addr=%#010x val=%#010x !BCR_DWIO !!\n", PCNET_INST_NR, addr, val));
3377
3378 return rc;
3379}
3380
3381static uint32_t pcnetIoportReadU32(PCNetState *pThis, uint32_t addr, int *pRC)
3382{
3383 uint32_t val = ~0U;
3384
3385 *pRC = VINF_SUCCESS;
3386
3387 if (RT_LIKELY(BCR_DWIO(pThis)))
3388 {
3389 switch (addr & 0x0f)
3390 {
3391 case 0x00: /* RDP */
3392 /** @note if we're not polling, then the guest will tell us when to poll by setting TDMD in CSR0 */
3393 /** Polling is then useless here and possibly expensive. */
3394 if (!CSR_DPOLL(pThis))
3395 pcnetPollTimer(pThis);
3396
3397 val = pcnetCSRReadU16(pThis, pThis->u32RAP);
3398 if (pThis->u32RAP == 0) // pcnetUpdateIrq() already called by pcnetCSRReadU16()
3399 goto skip_update_irq;
3400 break;
3401 case 0x04: /* RAP */
3402 val = pThis->u32RAP;
3403 goto skip_update_irq;
3404 case 0x08: /* RESET */
3405 pcnetSoftReset(pThis);
3406 val = 0;
3407 break;
3408 case 0x0c: /* BDP */
3409 val = pcnetBCRReadU16(pThis, pThis->u32RAP);
3410 break;
3411 }
3412 }
3413 else
3414 Log(("#%d pcnetIoportReadU32: addr=%#010x val=%#010x !BCR_DWIO !!\n", PCNET_INST_NR, addr, val));
3415 pcnetUpdateIrq(pThis);
3416
3417skip_update_irq:
3418#ifdef PCNET_DEBUG_IO
3419 Log2(("#%d pcnetIoportReadU32: addr=%#010x val=%#010x\n", PCNET_INST_NR, addr, val));
3420#endif
3421 return val;
3422}
3423
3424static void pcnetMMIOWriteU8(PCNetState *pThis, RTGCPHYS addr, uint32_t val)
3425{
3426#ifdef PCNET_DEBUG_IO
3427 Log2(("#%d pcnetMMIOWriteU8: addr=%#010x val=%#04x\n", PCNET_INST_NR, addr, val));
3428#endif
3429 if (!(addr & 0x10))
3430 pcnetAPROMWriteU8(pThis, addr, val);
3431}
3432
3433static uint32_t pcnetMMIOReadU8(PCNetState *pThis, RTGCPHYS addr)
3434{
3435 uint32_t val = ~0U;
3436 if (!(addr & 0x10))
3437 val = pcnetAPROMReadU8(pThis, addr);
3438#ifdef PCNET_DEBUG_IO
3439 Log2(("#%d pcnetMMIOReadU8: addr=%#010x val=%#04x\n", PCNET_INST_NR, addr, val & 0xff));
3440#endif
3441 return val;
3442}
3443
3444static void pcnetMMIOWriteU16(PCNetState *pThis, RTGCPHYS addr, uint32_t val)
3445{
3446#ifdef PCNET_DEBUG_IO
3447 Log2(("#%d pcnetMMIOWriteU16: addr=%#010x val=%#06x\n", PCNET_INST_NR, addr, val));
3448#endif
3449 if (addr & 0x10)
3450 pcnetIoportWriteU16(pThis, addr & 0x0f, val);
3451 else
3452 {
3453 pcnetAPROMWriteU8(pThis, addr, val );
3454 pcnetAPROMWriteU8(pThis, addr+1, val >> 8);
3455 }
3456}
3457
3458static uint32_t pcnetMMIOReadU16(PCNetState *pThis, RTGCPHYS addr)
3459{
3460 uint32_t val = ~0U;
3461 int rc;
3462
3463 if (addr & 0x10)
3464 val = pcnetIoportReadU16(pThis, addr & 0x0f, &rc);
3465 else
3466 {
3467 val = pcnetAPROMReadU8(pThis, addr+1);
3468 val <<= 8;
3469 val |= pcnetAPROMReadU8(pThis, addr);
3470 }
3471#ifdef PCNET_DEBUG_IO
3472 Log2(("#%d pcnetMMIOReadU16: addr=%#010x val = %#06x\n", PCNET_INST_NR, addr, val & 0xffff));
3473#endif
3474 return val;
3475}
3476
3477static void pcnetMMIOWriteU32(PCNetState *pThis, RTGCPHYS addr, uint32_t val)
3478{
3479#ifdef PCNET_DEBUG_IO
3480 Log2(("#%d pcnetMMIOWriteU32: addr=%#010x val=%#010x\n", PCNET_INST_NR, addr, val));
3481#endif
3482 if (addr & 0x10)
3483 pcnetIoportWriteU32(pThis, addr & 0x0f, val);
3484 else
3485 {
3486 pcnetAPROMWriteU8(pThis, addr, val );
3487 pcnetAPROMWriteU8(pThis, addr+1, val >> 8);
3488 pcnetAPROMWriteU8(pThis, addr+2, val >> 16);
3489 pcnetAPROMWriteU8(pThis, addr+3, val >> 24);
3490 }
3491}
3492
3493static uint32_t pcnetMMIOReadU32(PCNetState *pThis, RTGCPHYS addr)
3494{
3495 uint32_t val;
3496 int rc;
3497
3498 if (addr & 0x10)
3499 val = pcnetIoportReadU32(pThis, addr & 0x0f, &rc);
3500 else
3501 {
3502 val = pcnetAPROMReadU8(pThis, addr+3);
3503 val <<= 8;
3504 val |= pcnetAPROMReadU8(pThis, addr+2);
3505 val <<= 8;
3506 val |= pcnetAPROMReadU8(pThis, addr+1);
3507 val <<= 8;
3508 val |= pcnetAPROMReadU8(pThis, addr );
3509 }
3510#ifdef PCNET_DEBUG_IO
3511 Log2(("#%d pcnetMMIOReadU32: addr=%#010x val=%#010x\n", PCNET_INST_NR, addr, val));
3512#endif
3513 return val;
3514}
3515
3516
3517/**
3518 * Port I/O Handler for IN operations.
3519 *
3520 * @returns VBox status code.
3521 *
3522 * @param pDevIns The device instance.
3523 * @param pvUser User argument.
3524 * @param Port Port number used for the IN operation.
3525 * @param pu32 Where to store the result.
3526 * @param cb Number of bytes read.
3527 */
3528PDMBOTHCBDECL(int) pcnetIOPortAPromRead(PPDMDEVINS pDevIns, void *pvUser,
3529 RTIOPORT Port, uint32_t *pu32, unsigned cb)
3530{
3531 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
3532 int rc;
3533
3534 STAM_PROFILE_ADV_START(&pThis->StatAPROMRead, a);
3535 rc = PDMCritSectEnter(&pThis->CritSect, VINF_IOM_HC_IOPORT_WRITE);
3536 if (rc == VINF_SUCCESS)
3537 {
3538
3539 /* FreeBSD is accessing in dwords. */
3540 if (cb == 1)
3541 *pu32 = pcnetAPROMReadU8(pThis, Port);
3542 else if (cb == 2 && !BCR_DWIO(pThis))
3543 *pu32 = pcnetAPROMReadU8(pThis, Port)
3544 | (pcnetAPROMReadU8(pThis, Port + 1) << 8);
3545 else if (cb == 4 && BCR_DWIO(pThis))
3546 *pu32 = pcnetAPROMReadU8(pThis, Port)
3547 | (pcnetAPROMReadU8(pThis, Port + 1) << 8)
3548 | (pcnetAPROMReadU8(pThis, Port + 2) << 16)
3549 | (pcnetAPROMReadU8(pThis, Port + 3) << 24);
3550 else
3551 {
3552 Log(("#%d pcnetIOPortAPromRead: Port=%RTiop cb=%d BCR_DWIO !!\n", PCNET_INST_NR, Port, cb));
3553 rc = VERR_IOM_IOPORT_UNUSED;
3554 }
3555 PDMCritSectLeave(&pThis->CritSect);
3556 }
3557 STAM_PROFILE_ADV_STOP(&pThis->StatAPROMRead, a);
3558 LogFlow(("#%d pcnetIOPortAPromRead: Port=%RTiop *pu32=%#RX32 cb=%d rc=%Rrc\n", PCNET_INST_NR, Port, *pu32, cb, rc));
3559 return rc;
3560}
3561
3562
3563/**
3564 * Port I/O Handler for OUT operations.
3565 *
3566 * @returns VBox status code.
3567 *
3568 * @param pDevIns The device instance.
3569 * @param pvUser User argument.
3570 * @param Port Port number used for the IN operation.
3571 * @param u32 The value to output.
3572 * @param cb The value size in bytes.
3573 */
3574PDMBOTHCBDECL(int) pcnetIOPortAPromWrite(PPDMDEVINS pDevIns, void *pvUser,
3575 RTIOPORT Port, uint32_t u32, unsigned cb)
3576{
3577 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
3578 int rc;
3579
3580 if (cb == 1)
3581 {
3582 STAM_PROFILE_ADV_START(&pThis->StatAPROMWrite, a);
3583 rc = PDMCritSectEnter(&pThis->CritSect, VINF_IOM_HC_IOPORT_WRITE);
3584 if (RT_LIKELY(rc == VINF_SUCCESS))
3585 {
3586 pcnetAPROMWriteU8(pThis, Port, u32);
3587 PDMCritSectLeave(&pThis->CritSect);
3588 }
3589 STAM_PROFILE_ADV_STOP(&pThis->StatAPROMWrite, a);
3590 }
3591 else
3592 {
3593 AssertMsgFailed(("Port=%#x cb=%d u32=%#x\n", Port, cb, u32));
3594 rc = VINF_SUCCESS;
3595 }
3596 LogFlow(("#%d pcnetIOPortAPromWrite: Port=%RTiop u32=%#RX32 cb=%d rc=%Rrc\n", PCNET_INST_NR, Port, u32, cb, rc));
3597#ifdef LOG_ENABLED
3598 if (rc == VINF_IOM_HC_IOPORT_WRITE)
3599 LogFlow(("#%d => HC\n", PCNET_INST_NR));
3600#endif
3601 return rc;
3602}
3603
3604
3605/**
3606 * Port I/O Handler for IN operations.
3607 *
3608 * @returns VBox status code.
3609 *
3610 * @param pDevIns The device instance.
3611 * @param pvUser User argument.
3612 * @param Port Port number used for the IN operation.
3613 * @param pu32 Where to store the result.
3614 * @param cb Number of bytes read.
3615 */
3616PDMBOTHCBDECL(int) pcnetIOPortRead(PPDMDEVINS pDevIns, void *pvUser,
3617 RTIOPORT Port, uint32_t *pu32, unsigned cb)
3618{
3619 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
3620 int rc = VINF_SUCCESS;
3621
3622 STAM_PROFILE_ADV_START(&pThis->CTXSUFF(StatIORead), a);
3623 rc = PDMCritSectEnter(&pThis->CritSect, VINF_IOM_HC_IOPORT_READ);
3624 if (RT_LIKELY(rc == VINF_SUCCESS))
3625 {
3626 switch (cb)
3627 {
3628 case 1: *pu32 = pcnetIoportReadU8(pThis, Port, &rc); break;
3629 case 2: *pu32 = pcnetIoportReadU16(pThis, Port, &rc); break;
3630 case 4: *pu32 = pcnetIoportReadU32(pThis, Port, &rc); break;
3631 default:
3632 rc = PDMDeviceDBGFStop(pThis->CTX_SUFF(pDevIns), RT_SRC_POS,
3633 "pcnetIOPortRead: unsupported op size: offset=%#10x cb=%u\n",
3634 Port, cb);
3635 }
3636 PDMCritSectLeave(&pThis->CritSect);
3637 }
3638 STAM_PROFILE_ADV_STOP(&pThis->CTXSUFF(StatIORead), a);
3639 Log2(("#%d pcnetIOPortRead: Port=%RTiop *pu32=%#RX32 cb=%d rc=%Rrc\n", PCNET_INST_NR, Port, *pu32, cb, rc));
3640#ifdef LOG_ENABLED
3641 if (rc == VINF_IOM_HC_IOPORT_READ)
3642 LogFlow(("#%d pcnetIOPortRead/critsect failed in GC => HC\n", PCNET_INST_NR));
3643#endif
3644 return rc;
3645}
3646
3647
3648/**
3649 * Port I/O Handler for OUT operations.
3650 *
3651 * @returns VBox status code.
3652 *
3653 * @param pDevIns The device instance.
3654 * @param pvUser User argument.
3655 * @param Port Port number used for the IN operation.
3656 * @param u32 The value to output.
3657 * @param cb The value size in bytes.
3658 */
3659PDMBOTHCBDECL(int) pcnetIOPortWrite(PPDMDEVINS pDevIns, void *pvUser,
3660 RTIOPORT Port, uint32_t u32, unsigned cb)
3661{
3662 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
3663 int rc = VINF_SUCCESS;
3664
3665 STAM_PROFILE_ADV_START(&pThis->CTXSUFF(StatIOWrite), a);
3666 rc = PDMCritSectEnter(&pThis->CritSect, VINF_IOM_HC_IOPORT_WRITE);
3667 if (RT_LIKELY(rc == VINF_SUCCESS))
3668 {
3669 switch (cb)
3670 {
3671 case 1: rc = pcnetIoportWriteU8(pThis, Port, u32); break;
3672 case 2: rc = pcnetIoportWriteU16(pThis, Port, u32); break;
3673 case 4: rc = pcnetIoportWriteU32(pThis, Port, u32); break;
3674 default:
3675 rc = PDMDeviceDBGFStop(pThis->CTX_SUFF(pDevIns), RT_SRC_POS,
3676 "pcnetIOPortWrite: unsupported op size: offset=%#10x cb=%u\n",
3677 Port, cb);
3678 }
3679 PDMCritSectLeave(&pThis->CritSect);
3680 }
3681 STAM_PROFILE_ADV_STOP(&pThis->CTXSUFF(StatIOWrite), a);
3682 Log2(("#%d pcnetIOPortWrite: Port=%RTiop u32=%#RX32 cb=%d rc=%Rrc\n", PCNET_INST_NR, Port, u32, cb, rc));
3683#ifdef LOG_ENABLED
3684 if (rc == VINF_IOM_HC_IOPORT_WRITE)
3685 LogFlow(("#%d pcnetIOPortWrite/critsect failed in GC => HC\n", PCNET_INST_NR));
3686#endif
3687 return rc;
3688}
3689
3690
3691/**
3692 * Memory mapped I/O Handler for read operations.
3693 *
3694 * @returns VBox status code.
3695 *
3696 * @param pDevIns The device instance.
3697 * @param pvUser User argument.
3698 * @param GCPhysAddr Physical address (in GC) where the read starts.
3699 * @param pv Where to store the result.
3700 * @param cb Number of bytes read.
3701 */
3702PDMBOTHCBDECL(int) pcnetMMIORead(PPDMDEVINS pDevIns, void *pvUser,
3703 RTGCPHYS GCPhysAddr, void *pv, unsigned cb)
3704{
3705 PCNetState *pThis = (PCNetState *)pvUser;
3706 int rc = VINF_SUCCESS;
3707
3708 /*
3709 * We have to check the range, because we're page aligning the MMIO stuff presently.
3710 */
3711 if (GCPhysAddr - pThis->MMIOBase < PCNET_PNPMMIO_SIZE)
3712 {
3713 STAM_PROFILE_ADV_START(&pThis->CTXSUFF(StatMMIORead), a);
3714 rc = PDMCritSectEnter(&pThis->CritSect, VINF_IOM_HC_MMIO_READ);
3715 if (RT_LIKELY(rc == VINF_SUCCESS))
3716 {
3717 switch (cb)
3718 {
3719 case 1: *(uint8_t *)pv = pcnetMMIOReadU8 (pThis, GCPhysAddr); break;
3720 case 2: *(uint16_t *)pv = pcnetMMIOReadU16(pThis, GCPhysAddr); break;
3721 case 4: *(uint32_t *)pv = pcnetMMIOReadU32(pThis, GCPhysAddr); break;
3722 default:
3723 rc = PDMDeviceDBGFStop(pThis->CTX_SUFF(pDevIns), RT_SRC_POS,
3724 "pcnetMMIORead: unsupported op size: address=%RGp cb=%u\n",
3725 GCPhysAddr, cb);
3726 }
3727 PDMCritSectLeave(&pThis->CritSect);
3728 }
3729 STAM_PROFILE_ADV_STOP(&pThis->CTXSUFF(StatMMIORead), a);
3730 }
3731 else
3732 memset(pv, 0, cb);
3733
3734 LogFlow(("#%d pcnetMMIORead: pvUser=%p:{%.*Rhxs} cb=%d GCPhysAddr=%RGp rc=%Rrc\n",
3735 PCNET_INST_NR, pv, cb, pv, cb, GCPhysAddr, rc));
3736#ifdef LOG_ENABLED
3737 if (rc == VINF_IOM_HC_MMIO_READ)
3738 LogFlow(("#%d => HC\n", PCNET_INST_NR));
3739#endif
3740 return rc;
3741}
3742
3743
3744/**
3745 * Port I/O Handler for write operations.
3746 *
3747 * @returns VBox status code.
3748 *
3749 * @param pDevIns The device instance.
3750 * @param pvUser User argument.
3751 * @param GCPhysAddr Physical address (in GC) where the read starts.
3752 * @param pv Where to fetch the result.
3753 * @param cb Number of bytes to write.
3754 */
3755PDMBOTHCBDECL(int) pcnetMMIOWrite(PPDMDEVINS pDevIns, void *pvUser,
3756 RTGCPHYS GCPhysAddr, void *pv, unsigned cb)
3757{
3758 PCNetState *pThis = (PCNetState *)pvUser;
3759 int rc = VINF_SUCCESS;
3760
3761 /*
3762 * We have to check the range, because we're page aligning the MMIO stuff presently.
3763 */
3764 if (GCPhysAddr - pThis->MMIOBase < PCNET_PNPMMIO_SIZE)
3765 {
3766 STAM_PROFILE_ADV_START(&pThis->CTXSUFF(StatMMIOWrite), a);
3767 rc = PDMCritSectEnter(&pThis->CritSect, VINF_IOM_HC_MMIO_WRITE);
3768 if (RT_LIKELY(rc == VINF_SUCCESS))
3769 {
3770 switch (cb)
3771 {
3772 case 1: pcnetMMIOWriteU8 (pThis, GCPhysAddr, *(uint8_t *)pv); break;
3773 case 2: pcnetMMIOWriteU16(pThis, GCPhysAddr, *(uint16_t *)pv); break;
3774 case 4: pcnetMMIOWriteU32(pThis, GCPhysAddr, *(uint32_t *)pv); break;
3775 default:
3776 rc = PDMDeviceDBGFStop(pThis->CTX_SUFF(pDevIns), RT_SRC_POS,
3777 "pcnetMMIOWrite: unsupported op size: address=%RGp cb=%u\n",
3778 GCPhysAddr, cb);
3779 }
3780 PDMCritSectLeave(&pThis->CritSect);
3781 }
3782 // else rc == VINF_IOM_HC_MMIO_WRITE => handle in ring3
3783
3784 STAM_PROFILE_ADV_STOP(&pThis->CTXSUFF(StatMMIOWrite), a);
3785 }
3786 LogFlow(("#%d pcnetMMIOWrite: pvUser=%p:{%.*Rhxs} cb=%d GCPhysAddr=%RGp rc=%Rrc\n",
3787 PCNET_INST_NR, pv, cb, pv, cb, GCPhysAddr, rc));
3788#ifdef LOG_ENABLED
3789 if (rc == VINF_IOM_HC_MMIO_WRITE)
3790 LogFlow(("#%d => HC\n", PCNET_INST_NR));
3791#endif
3792 return rc;
3793}
3794
3795
3796#ifdef IN_RING3
3797/**
3798 * Device timer callback function.
3799 *
3800 * @param pDevIns Device instance of the device which registered the timer.
3801 * @param pTimer The timer handle.
3802 * @thread EMT
3803 */
3804static DECLCALLBACK(void) pcnetTimer(PPDMDEVINS pDevIns, PTMTIMER pTimer)
3805{
3806 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
3807 int rc;
3808
3809 STAM_PROFILE_ADV_START(&pThis->StatTimer, a);
3810 rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
3811 AssertReleaseRC(rc);
3812
3813 pcnetPollTimer(pThis);
3814
3815 PDMCritSectLeave(&pThis->CritSect);
3816 STAM_PROFILE_ADV_STOP(&pThis->StatTimer, a);
3817}
3818
3819
3820/**
3821 * Software interrupt timer callback function.
3822 *
3823 * @param pDevIns Device instance of the device which registered the timer.
3824 * @param pTimer The timer handle.
3825 * @thread EMT
3826 */
3827static DECLCALLBACK(void) pcnetTimerSoftInt(PPDMDEVINS pDevIns, PTMTIMER pTimer)
3828{
3829 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
3830
3831 pThis->aCSR[7] |= 0x0800; /* STINT */
3832 pcnetUpdateIrq(pThis);
3833 TMTimerSetNano(pThis->CTX_SUFF(pTimerSoftInt), 12800U * (pThis->aBCR[BCR_STVAL] & 0xffff));
3834}
3835
3836
3837/**
3838 * Restore timer callback.
3839 *
3840 * This is only called when've restored a saved state and temporarily
3841 * disconnected the network link to inform the guest that network connections
3842 * should be considered lost.
3843 *
3844 * @param pDevIns Device instance of the device which registered the timer.
3845 * @param pTimer The timer handle.
3846 */
3847static DECLCALLBACK(void) pcnetTimerRestore(PPDMDEVINS pDevIns, PTMTIMER pTimer)
3848{
3849 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
3850 int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
3851 AssertReleaseRC(rc);
3852
3853 rc = VERR_GENERAL_FAILURE;
3854 if (pThis->cLinkDownReported <= PCNET_MAX_LINKDOWN_REPORTED)
3855 rc = TMTimerSetMillies(pThis->pTimerRestore, 1500);
3856 if (RT_FAILURE(rc))
3857 {
3858 pThis->fLinkTempDown = false;
3859 if (pThis->fLinkUp)
3860 {
3861 LogRel(("PCNet#%d: The link is back up again after the restore.\n",
3862 pDevIns->iInstance));
3863 Log(("#%d pcnetTimerRestore: Clearing ERR and CERR after load. cLinkDownReported=%d\n",
3864 pDevIns->iInstance, pThis->cLinkDownReported));
3865 pThis->aCSR[0] &= ~(RT_BIT(15) | RT_BIT(13)); /* ERR | CERR - probably not 100% correct either... */
3866 pThis->Led.Actual.s.fError = 0;
3867 }
3868 }
3869 else
3870 Log(("#%d pcnetTimerRestore: cLinkDownReported=%d, wait another 1500ms...\n",
3871 pDevIns->iInstance, pThis->cLinkDownReported));
3872
3873 PDMCritSectLeave(&pThis->CritSect);
3874}
3875
3876
3877/**
3878 * Callback function for mapping an PCI I/O region.
3879 *
3880 * @return VBox status code.
3881 * @param pPciDev Pointer to PCI device. Use pPciDev->pDevIns to get the device instance.
3882 * @param iRegion The region number.
3883 * @param GCPhysAddress Physical address of the region. If iType is PCI_ADDRESS_SPACE_IO, this is an
3884 * I/O port, else it's a physical address.
3885 * This address is *NOT* relative to pci_mem_base like earlier!
3886 * @param cb Region size.
3887 * @param enmType One of the PCI_ADDRESS_SPACE_* values.
3888 */
3889static DECLCALLBACK(int) pcnetIOPortMap(PPCIDEVICE pPciDev, /*unsigned*/ int iRegion,
3890 RTGCPHYS GCPhysAddress, uint32_t cb, PCIADDRESSSPACE enmType)
3891{
3892 int rc;
3893 PPDMDEVINS pDevIns = pPciDev->pDevIns;
3894 RTIOPORT Port = (RTIOPORT)GCPhysAddress;
3895 PCNetState *pThis = PCIDEV_2_PCNETSTATE(pPciDev);
3896
3897 Assert(enmType == PCI_ADDRESS_SPACE_IO);
3898 Assert(cb >= 0x20);
3899
3900 rc = PDMDevHlpIOPortRegister(pDevIns, Port, 0x10, 0, pcnetIOPortAPromWrite,
3901 pcnetIOPortAPromRead, NULL, NULL, "PCNet ARPOM");
3902 if (RT_FAILURE(rc))
3903 return rc;
3904 rc = PDMDevHlpIOPortRegister(pDevIns, Port + 0x10, 0x10, 0, pcnetIOPortWrite,
3905 pcnetIOPortRead, NULL, NULL, "PCNet");
3906 if (RT_FAILURE(rc))
3907 return rc;
3908
3909 if (pThis->fGCEnabled)
3910 {
3911 rc = PDMDevHlpIOPortRegisterGC(pDevIns, Port, 0x10, 0, "pcnetIOPortAPromWrite",
3912 "pcnetIOPortAPromRead", NULL, NULL, "PCNet aprom");
3913 if (RT_FAILURE(rc))
3914 return rc;
3915 rc = PDMDevHlpIOPortRegisterGC(pDevIns, Port + 0x10, 0x10, 0, "pcnetIOPortWrite",
3916 "pcnetIOPortRead", NULL, NULL, "PCNet");
3917 if (RT_FAILURE(rc))
3918 return rc;
3919 }
3920 if (pThis->fR0Enabled)
3921 {
3922 rc = PDMDevHlpIOPortRegisterR0(pDevIns, Port, 0x10, 0, "pcnetIOPortAPromWrite",
3923 "pcnetIOPortAPromRead", NULL, NULL, "PCNet aprom");
3924 if (RT_FAILURE(rc))
3925 return rc;
3926 rc = PDMDevHlpIOPortRegisterR0(pDevIns, Port + 0x10, 0x10, 0, "pcnetIOPortWrite",
3927 "pcnetIOPortRead", NULL, NULL, "PCNet");
3928 if (RT_FAILURE(rc))
3929 return rc;
3930 }
3931
3932 pThis->IOPortBase = Port;
3933 return VINF_SUCCESS;
3934}
3935
3936
3937/**
3938 * Callback function for mapping the MMIO region.
3939 *
3940 * @return VBox status code.
3941 * @param pPciDev Pointer to PCI device. Use pPciDev->pDevIns to get the device instance.
3942 * @param iRegion The region number.
3943 * @param GCPhysAddress Physical address of the region. If iType is PCI_ADDRESS_SPACE_IO, this is an
3944 * I/O port, else it's a physical address.
3945 * This address is *NOT* relative to pci_mem_base like earlier!
3946 * @param cb Region size.
3947 * @param enmType One of the PCI_ADDRESS_SPACE_* values.
3948 */
3949static DECLCALLBACK(int) pcnetMMIOMap(PPCIDEVICE pPciDev, /*unsigned*/ int iRegion,
3950 RTGCPHYS GCPhysAddress, uint32_t cb, PCIADDRESSSPACE enmType)
3951{
3952 PCNetState *pThis = PCIDEV_2_PCNETSTATE(pPciDev);
3953 int rc;
3954
3955 Assert(enmType == PCI_ADDRESS_SPACE_MEM);
3956 Assert(cb >= PCNET_PNPMMIO_SIZE);
3957
3958 /* We use the assigned size here, because we currently only support page aligned MMIO ranges. */
3959 rc = PDMDevHlpMMIORegister(pPciDev->pDevIns, GCPhysAddress, cb, pThis,
3960 pcnetMMIOWrite, pcnetMMIORead, NULL, "PCNet");
3961 if (RT_FAILURE(rc))
3962 return rc;
3963 pThis->MMIOBase = GCPhysAddress;
3964 return rc;
3965}
3966
3967
3968/**
3969 * Callback function for mapping the MMIO region.
3970 *
3971 * @return VBox status code.
3972 * @param pPciDev Pointer to PCI device. Use pPciDev->pDevIns to get the device instance.
3973 * @param iRegion The region number.
3974 * @param GCPhysAddress Physical address of the region. If iType is PCI_ADDRESS_SPACE_IO, this is an
3975 * I/O port, else it's a physical address.
3976 * This address is *NOT* relative to pci_mem_base like earlier!
3977 * @param cb Region size.
3978 * @param enmType One of the PCI_ADDRESS_SPACE_* values.
3979 */
3980static DECLCALLBACK(int) pcnetMMIOSharedMap(PPCIDEVICE pPciDev, /*unsigned*/ int iRegion,
3981 RTGCPHYS GCPhysAddress, uint32_t cb, PCIADDRESSSPACE enmType)
3982{
3983 if (GCPhysAddress != NIL_RTGCPHYS)
3984 return PDMDevHlpMMIO2Map(pPciDev->pDevIns, iRegion, GCPhysAddress);
3985
3986 /* nothing to clean up */
3987 return VINF_SUCCESS;
3988}
3989
3990
3991/**
3992 * PCNET status info callback.
3993 *
3994 * @param pDevIns The device instance.
3995 * @param pHlp The output helpers.
3996 * @param pszArgs The arguments.
3997 */
3998static DECLCALLBACK(void) pcnetInfo(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
3999{
4000 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
4001 bool fRcvRing = false;
4002 bool fXmtRing = false;
4003
4004 /*
4005 * Parse args.
4006 */
4007 if (pszArgs)
4008 {
4009 fRcvRing = strstr(pszArgs, "verbose") || strstr(pszArgs, "rcv");
4010 fXmtRing = strstr(pszArgs, "verbose") || strstr(pszArgs, "xmt");
4011 }
4012
4013 /*
4014 * Show info.
4015 */
4016 pHlp->pfnPrintf(pHlp,
4017 "pcnet #%d: port=%RTiop mmio=%RX32 mac-cfg=%.*Rhxs %s\n",
4018 pDevIns->iInstance,
4019 pThis->IOPortBase, pThis->MMIOBase, sizeof(pThis->MacConfigured), &pThis->MacConfigured,
4020 pThis->fAm79C973 ? "Am79C973" : "Am79C970A", pThis->fGCEnabled ? " GC" : "", pThis->fR0Enabled ? " R0" : "");
4021
4022 PDMCritSectEnter(&pThis->CritSect, VERR_INTERNAL_ERROR); /* Take it here so we know why we're hanging... */
4023
4024 pHlp->pfnPrintf(pHlp,
4025 "CSR0=%#06x:\n",
4026 pThis->aCSR[0]);
4027
4028 pHlp->pfnPrintf(pHlp,
4029 "CSR1=%#06x:\n",
4030 pThis->aCSR[1]);
4031
4032 pHlp->pfnPrintf(pHlp,
4033 "CSR2=%#06x:\n",
4034 pThis->aCSR[2]);
4035
4036 pHlp->pfnPrintf(pHlp,
4037 "CSR3=%#06x: BSWP=%d EMBA=%d DXMT2PD=%d LAPPEN=%d DXSUFLO=%d IDONM=%d TINTM=%d RINTM=%d MERRM=%d MISSM=%d BABLM=%d\n",
4038 pThis->aCSR[3],
4039 !!(pThis->aCSR[3] & RT_BIT(2)), !!(pThis->aCSR[3] & RT_BIT(3)), !!(pThis->aCSR[3] & RT_BIT(4)), CSR_LAPPEN(pThis),
4040 CSR_DXSUFLO(pThis), !!(pThis->aCSR[3] & RT_BIT(8)), !!(pThis->aCSR[3] & RT_BIT(9)), !!(pThis->aCSR[3] & RT_BIT(10)),
4041 !!(pThis->aCSR[3] & RT_BIT(11)), !!(pThis->aCSR[3] & RT_BIT(12)), !!(pThis->aCSR[3] & RT_BIT(14)));
4042
4043 pHlp->pfnPrintf(pHlp,
4044 "CSR4=%#06x: JABM=%d JAB=%d TXSTRM=%d TXSTRT=%d RCVCOOM=%d RCVCCO=%d UINT=%d UINTCMD=%d\n"
4045 " MFCOM=%d MFCO=%d ASTRP_RCV=%d APAD_XMT=%d DPOLL=%d TIMER=%d EMAPLUS=%d EN124=%d\n",
4046 pThis->aCSR[4],
4047 !!(pThis->aCSR[4] & RT_BIT( 0)), !!(pThis->aCSR[4] & RT_BIT( 1)), !!(pThis->aCSR[4] & RT_BIT( 2)), !!(pThis->aCSR[4] & RT_BIT( 3)),
4048 !!(pThis->aCSR[4] & RT_BIT( 4)), !!(pThis->aCSR[4] & RT_BIT( 5)), !!(pThis->aCSR[4] & RT_BIT( 6)), !!(pThis->aCSR[4] & RT_BIT( 7)),
4049 !!(pThis->aCSR[4] & RT_BIT( 8)), !!(pThis->aCSR[4] & RT_BIT( 9)), !!(pThis->aCSR[4] & RT_BIT(10)), !!(pThis->aCSR[4] & RT_BIT(11)),
4050 !!(pThis->aCSR[4] & RT_BIT(12)), !!(pThis->aCSR[4] & RT_BIT(13)), !!(pThis->aCSR[4] & RT_BIT(14)), !!(pThis->aCSR[4] & RT_BIT(15)));
4051
4052 pHlp->pfnPrintf(pHlp,
4053 "CSR5=%#06x:\n",
4054 pThis->aCSR[5]);
4055
4056 pHlp->pfnPrintf(pHlp,
4057 "CSR6=%#06x: RLEN=%#x* TLEN=%#x* [* encoded]\n",
4058 pThis->aCSR[6],
4059 (pThis->aCSR[6] >> 8) & 0xf, (pThis->aCSR[6] >> 12) & 0xf);
4060
4061 pHlp->pfnPrintf(pHlp,
4062 "CSR8..11=%#06x,%#06x,%#06x,%#06x: LADRF=%#018llx\n",
4063 pThis->aCSR[8], pThis->aCSR[9], pThis->aCSR[10], pThis->aCSR[11],
4064 (uint64_t)(pThis->aCSR[ 8] & 0xffff)
4065 | (uint64_t)(pThis->aCSR[ 9] & 0xffff) << 16
4066 | (uint64_t)(pThis->aCSR[10] & 0xffff) << 32
4067 | (uint64_t)(pThis->aCSR[11] & 0xffff) << 48);
4068
4069 pHlp->pfnPrintf(pHlp,
4070 "CSR12..14=%#06x,%#06x,%#06x: PADR=%02x:%02x:%02x:%02x:%02x:%02x (Current MAC Address)\n",
4071 pThis->aCSR[12], pThis->aCSR[13], pThis->aCSR[14],
4072 pThis->aCSR[12] & 0xff,
4073 (pThis->aCSR[12] >> 8) & 0xff,
4074 pThis->aCSR[13] & 0xff,
4075 (pThis->aCSR[13] >> 8) & 0xff,
4076 pThis->aCSR[14] & 0xff,
4077 (pThis->aCSR[14] >> 8) & 0xff);
4078
4079 pHlp->pfnPrintf(pHlp,
4080 "CSR15=%#06x: DXR=%d DTX=%d LOOP=%d DXMTFCS=%d FCOLL=%d DRTY=%d INTL=%d PORTSEL=%d LTR=%d\n"
4081 " MENDECL=%d DAPC=%d DLNKTST=%d DRCVPV=%d DRCVBC=%d PROM=%d\n",
4082 pThis->aCSR[15],
4083 !!(pThis->aCSR[15] & RT_BIT( 0)), !!(pThis->aCSR[15] & RT_BIT( 1)), !!(pThis->aCSR[15] & RT_BIT( 2)), !!(pThis->aCSR[15] & RT_BIT( 3)),
4084 !!(pThis->aCSR[15] & RT_BIT( 4)), !!(pThis->aCSR[15] & RT_BIT( 5)), !!(pThis->aCSR[15] & RT_BIT( 6)), (pThis->aCSR[15] >> 7) & 3,
4085 !!(pThis->aCSR[15] & RT_BIT( 9)), !!(pThis->aCSR[15] & RT_BIT(10)), !!(pThis->aCSR[15] & RT_BIT(11)),
4086 !!(pThis->aCSR[15] & RT_BIT(12)), !!(pThis->aCSR[15] & RT_BIT(13)), !!(pThis->aCSR[15] & RT_BIT(14)), !!(pThis->aCSR[15] & RT_BIT(15)));
4087
4088 pHlp->pfnPrintf(pHlp,
4089 "CSR46=%#06x: POLL=%#06x (Poll Time Counter)\n",
4090 pThis->aCSR[46], pThis->aCSR[46] & 0xffff);
4091
4092 pHlp->pfnPrintf(pHlp,
4093 "CSR47=%#06x: POLLINT=%#06x (Poll Time Interval)\n",
4094 pThis->aCSR[47], pThis->aCSR[47] & 0xffff);
4095
4096 pHlp->pfnPrintf(pHlp,
4097 "CSR58=%#06x: SWSTYLE=%d %s SSIZE32=%d CSRPCNET=%d APERRENT=%d\n",
4098 pThis->aCSR[58],
4099 pThis->aCSR[58] & 0x7f,
4100 (pThis->aCSR[58] & 0x7f) == 0 ? "C-LANCE / PCnet-ISA"
4101 : (pThis->aCSR[58] & 0x7f) == 1 ? "ILACC"
4102 : (pThis->aCSR[58] & 0x7f) == 2 ? "PCNet-PCI II"
4103 : (pThis->aCSR[58] & 0x7f) == 3 ? "PCNet-PCI II controller"
4104 : "!!reserved!!",
4105 !!(pThis->aCSR[58] & RT_BIT(8)), !!(pThis->aCSR[58] & RT_BIT(9)), !!(pThis->aCSR[58] & RT_BIT(10)));
4106
4107 pHlp->pfnPrintf(pHlp,
4108 "CSR112=%04RX32: MFC=%04x (Missed receive Frame Count)\n",
4109 pThis->aCSR[112], pThis->aCSR[112] & 0xffff);
4110
4111 pHlp->pfnPrintf(pHlp,
4112 "CSR122=%04RX32: RCVALGN=%04x (Receive Frame Align)\n",
4113 pThis->aCSR[122], !!(pThis->aCSR[122] & RT_BIT(0)));
4114
4115 pHlp->pfnPrintf(pHlp,
4116 "CSR124=%04RX32: RPA=%04x (Runt Packet Accept)\n",
4117 pThis->aCSR[122], !!(pThis->aCSR[122] & RT_BIT(3)));
4118
4119
4120 /*
4121 * Dump the receive ring.
4122 */
4123 pHlp->pfnPrintf(pHlp,
4124 "RCVRL=%04x RCVRC=%04x GCRDRA=%RX32 \n"
4125 "CRDA=%08RX32 CRBA=%08RX32 CRBC=%03x CRST=%04x\n"
4126 "NRDA=%08RX32 NRBA=%08RX32 NRBC=%03x NRST=%04x\n"
4127 "NNRDA=%08RX32\n"
4128 ,
4129 CSR_RCVRL(pThis), CSR_RCVRC(pThis), pThis->GCRDRA,
4130 CSR_CRDA(pThis), CSR_CRBA(pThis), CSR_CRBC(pThis), CSR_CRST(pThis),
4131 CSR_NRDA(pThis), CSR_NRBA(pThis), CSR_NRBC(pThis), CSR_NRST(pThis),
4132 CSR_NNRD(pThis));
4133 if (fRcvRing)
4134 {
4135 const unsigned cb = 1 << pThis->iLog2DescSize;
4136 RTGCPHYS32 GCPhys = pThis->GCRDRA;
4137 unsigned i = CSR_RCVRL(pThis);
4138 while (i-- > 0)
4139 {
4140 RMD rmd;
4141 pcnetRmdLoad(pThis, &rmd, PHYSADDR(pThis, GCPhys), false);
4142 pHlp->pfnPrintf(pHlp,
4143 "%04x %RX32:%c%c RBADR=%08RX32 BCNT=%03x MCNT=%03x "
4144 "OWN=%d ERR=%d FRAM=%d OFLO=%d CRC=%d BUFF=%d STP=%d ENP=%d BPE=%d "
4145 "PAM=%d LAFM=%d BAM=%d RCC=%02x RPC=%02x ONES=%#x ZEROS=%d\n",
4146 i, GCPhys, i + 1 == CSR_RCVRC(pThis) ? '*' : ' ', GCPhys == CSR_CRDA(pThis) ? '*' : ' ',
4147 rmd.rmd0.rbadr, 4096 - rmd.rmd1.bcnt, rmd.rmd2.mcnt,
4148 rmd.rmd1.own, rmd.rmd1.err, rmd.rmd1.fram, rmd.rmd1.oflo, rmd.rmd1.crc, rmd.rmd1.buff,
4149 rmd.rmd1.stp, rmd.rmd1.enp, rmd.rmd1.bpe,
4150 rmd.rmd1.pam, rmd.rmd1.lafm, rmd.rmd1.bam, rmd.rmd2.rcc, rmd.rmd2.rpc,
4151 rmd.rmd1.ones, rmd.rmd2.zeros);
4152
4153 GCPhys += cb;
4154 }
4155 }
4156
4157 /*
4158 * Dump the transmit ring.
4159 */
4160 pHlp->pfnPrintf(pHlp,
4161 "XMTRL=%04x XMTRC=%04x GCTDRA=%08RX32 BADX=%08RX32\n"
4162 "PXDA=%08RX32 PXBC=%03x PXST=%04x\n"
4163 "CXDA=%08RX32 CXBA=%08RX32 CXBC=%03x CXST=%04x\n"
4164 "NXDA=%08RX32 NXBA=%08RX32 NXBC=%03x NXST=%04x\n"
4165 "NNXDA=%08RX32\n"
4166 ,
4167 CSR_XMTRL(pThis), CSR_XMTRC(pThis),
4168 pThis->GCTDRA, CSR_BADX(pThis),
4169 CSR_PXDA(pThis), CSR_PXBC(pThis), CSR_PXST(pThis),
4170 CSR_CXDA(pThis), CSR_CXBA(pThis), CSR_CXBC(pThis), CSR_CXST(pThis),
4171 CSR_NXDA(pThis), CSR_NXBA(pThis), CSR_NXBC(pThis), CSR_NXST(pThis),
4172 CSR_NNXD(pThis));
4173 if (fXmtRing)
4174 {
4175 const unsigned cb = 1 << pThis->iLog2DescSize;
4176 RTGCPHYS32 GCPhys = pThis->GCTDRA;
4177 unsigned i = CSR_XMTRL(pThis);
4178 while (i-- > 0)
4179 {
4180 TMD tmd;
4181 pcnetTmdLoad(pThis, &tmd, PHYSADDR(pThis, GCPhys), false);
4182 pHlp->pfnPrintf(pHlp,
4183 "%04x %RX32:%c%c TBADR=%08RX32 BCNT=%03x OWN=%d "
4184 "ERR=%d NOFCS=%d LTINT=%d ONE=%d DEF=%d STP=%d ENP=%d BPE=%d "
4185 "BUFF=%d UFLO=%d EXDEF=%d LCOL=%d LCAR=%d RTRY=%d TDR=%03x TRC=%#x ONES=%#x\n"
4186 ,
4187 i, GCPhys, i + 1 == CSR_XMTRC(pThis) ? '*' : ' ', GCPhys == CSR_CXDA(pThis) ? '*' : ' ',
4188 tmd.tmd0.tbadr, 4096 - tmd.tmd1.bcnt,
4189 tmd.tmd2.tdr,
4190 tmd.tmd2.trc,
4191 tmd.tmd1.own,
4192 tmd.tmd1.err,
4193 tmd.tmd1.nofcs,
4194 tmd.tmd1.ltint,
4195 tmd.tmd1.one,
4196 tmd.tmd1.def,
4197 tmd.tmd1.stp,
4198 tmd.tmd1.enp,
4199 tmd.tmd1.bpe,
4200 tmd.tmd2.buff,
4201 tmd.tmd2.uflo,
4202 tmd.tmd2.exdef,
4203 tmd.tmd2.lcol,
4204 tmd.tmd2.lcar,
4205 tmd.tmd2.rtry,
4206 tmd.tmd2.tdr,
4207 tmd.tmd2.trc,
4208 tmd.tmd1.ones);
4209
4210 GCPhys += cb;
4211 }
4212 }
4213
4214 PDMCritSectLeave(&pThis->CritSect);
4215}
4216
4217
4218/**
4219 * Serializes the receive thread, it may be working inside the critsect.
4220 *
4221 * @returns VBox status code.
4222 * @param pDevIns The device instance.
4223 * @param pSSMHandle The handle to save the state to.
4224 */
4225static DECLCALLBACK(int) pcnetSavePrep(PPDMDEVINS pDevIns, PSSMHANDLE pSSMHandle)
4226{
4227 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
4228
4229 int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
4230 AssertRC(rc);
4231 PDMCritSectLeave(&pThis->CritSect);
4232
4233 return VINF_SUCCESS;
4234}
4235
4236
4237/**
4238 * Saves a state of the PC-Net II device.
4239 *
4240 * @returns VBox status code.
4241 * @param pDevIns The device instance.
4242 * @param pSSMHandle The handle to save the state to.
4243 */
4244static DECLCALLBACK(int) pcnetSaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSMHandle)
4245{
4246 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
4247 int rc = VINF_SUCCESS;
4248
4249 SSMR3PutBool(pSSMHandle, pThis->fLinkUp);
4250 SSMR3PutU32(pSSMHandle, pThis->u32RAP);
4251 SSMR3PutS32(pSSMHandle, pThis->iISR);
4252 SSMR3PutU32(pSSMHandle, pThis->u32Lnkst);
4253 SSMR3PutBool(pSSMHandle, pThis->fPrivIfEnabled); /* >= If version 0.9 */
4254 SSMR3PutBool(pSSMHandle, pThis->fSignalRxMiss); /* >= If version 0.10 */
4255 SSMR3PutGCPhys32(pSSMHandle, pThis->GCRDRA);
4256 SSMR3PutGCPhys32(pSSMHandle, pThis->GCTDRA);
4257 SSMR3PutMem(pSSMHandle, pThis->aPROM, sizeof(pThis->aPROM));
4258 SSMR3PutMem(pSSMHandle, pThis->aCSR, sizeof(pThis->aCSR));
4259 SSMR3PutMem(pSSMHandle, pThis->aBCR, sizeof(pThis->aBCR));
4260 SSMR3PutMem(pSSMHandle, pThis->aMII, sizeof(pThis->aMII));
4261 SSMR3PutU16(pSSMHandle, pThis->u16CSR0LastSeenByGuest);
4262 SSMR3PutU64(pSSMHandle, pThis->u64LastPoll);
4263 SSMR3PutMem(pSSMHandle, &pThis->MacConfigured, sizeof(pThis->MacConfigured));
4264 SSMR3PutBool(pSSMHandle, pThis->fAm79C973); /* >= If version 0.8 */
4265 SSMR3PutU32(pSSMHandle, pThis->u32LinkSpeed);
4266#ifdef PCNET_NO_POLLING
4267 return VINF_SUCCESS;
4268#else
4269 rc = TMR3TimerSave(pThis->CTX_SUFF(pTimerPoll), pSSMHandle);
4270 if (RT_FAILURE(rc))
4271 return rc;
4272#endif
4273 if (pThis->fAm79C973)
4274 rc = TMR3TimerSave(pThis->CTX_SUFF(pTimerSoftInt), pSSMHandle);
4275 return rc;
4276}
4277
4278
4279/**
4280 * Serializes the receive thread, it may be working inside the critsect.
4281 *
4282 * @returns VBox status code.
4283 * @param pDevIns The device instance.
4284 * @param pSSMHandle The handle to save the state to.
4285 */
4286static DECLCALLBACK(int) pcnetLoadPrep(PPDMDEVINS pDevIns, PSSMHANDLE pSSMHandle)
4287{
4288 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
4289
4290 int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
4291 AssertRC(rc);
4292 PDMCritSectLeave(&pThis->CritSect);
4293
4294 return VINF_SUCCESS;
4295}
4296
4297
4298/**
4299 * Loads a saved PC-Net II device state.
4300 *
4301 * @returns VBox status code.
4302 * @param pDevIns The device instance.
4303 * @param pSSMHandle The handle to the saved state.
4304 * @param u32Version The data unit version number.
4305 */
4306static DECLCALLBACK(int) pcnetLoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSMHandle, uint32_t u32Version)
4307{
4308 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
4309 RTMAC Mac;
4310 if ( SSM_VERSION_MAJOR_CHANGED(u32Version, PCNET_SAVEDSTATE_VERSION)
4311 || SSM_VERSION_MINOR(u32Version) < 7)
4312 return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
4313
4314 /* restore data */
4315 SSMR3GetBool(pSSMHandle, &pThis->fLinkUp);
4316 SSMR3GetU32(pSSMHandle, &pThis->u32RAP);
4317 SSMR3GetS32(pSSMHandle, &pThis->iISR);
4318 SSMR3GetU32(pSSMHandle, &pThis->u32Lnkst);
4319 if ( SSM_VERSION_MAJOR(u32Version) > 0
4320 || SSM_VERSION_MINOR(u32Version) >= 9)
4321 {
4322 SSMR3GetBool(pSSMHandle, &pThis->fPrivIfEnabled);
4323 if (pThis->fPrivIfEnabled)
4324 LogRel(("PCNet#%d: Enabling private interface\n", PCNET_INST_NR));
4325 }
4326 if ( SSM_VERSION_MAJOR(u32Version) > 0
4327 || SSM_VERSION_MINOR(u32Version) >= 10)
4328 {
4329 SSMR3GetBool(pSSMHandle, &pThis->fSignalRxMiss);
4330 }
4331 SSMR3GetGCPhys32(pSSMHandle, &pThis->GCRDRA);
4332 SSMR3GetGCPhys32(pSSMHandle, &pThis->GCTDRA);
4333 SSMR3GetMem(pSSMHandle, &pThis->aPROM, sizeof(pThis->aPROM));
4334 SSMR3GetMem(pSSMHandle, &pThis->aCSR, sizeof(pThis->aCSR));
4335 SSMR3GetMem(pSSMHandle, &pThis->aBCR, sizeof(pThis->aBCR));
4336 SSMR3GetMem(pSSMHandle, &pThis->aMII, sizeof(pThis->aMII));
4337 SSMR3GetU16(pSSMHandle, &pThis->u16CSR0LastSeenByGuest);
4338 SSMR3GetU64(pSSMHandle, &pThis->u64LastPoll);
4339 SSMR3GetMem(pSSMHandle, &Mac, sizeof(Mac));
4340 Assert( !memcmp(&Mac, &pThis->MacConfigured, sizeof(Mac))
4341 || SSMR3HandleGetAfter(pSSMHandle) == SSMAFTER_DEBUG_IT);
4342 SSMR3GetBool(pSSMHandle, &pThis->fAm79C973);
4343 SSMR3GetU32(pSSMHandle, &pThis->u32LinkSpeed);
4344#ifndef PCNET_NO_POLLING
4345 TMR3TimerLoad(pThis->CTX_SUFF(pTimerPoll), pSSMHandle);
4346#endif
4347 if (pThis->fAm79C973)
4348 {
4349 if ( SSM_VERSION_MAJOR(u32Version) > 0
4350 || SSM_VERSION_MINOR(u32Version) >= 8)
4351 TMR3TimerLoad(pThis->CTX_SUFF(pTimerSoftInt), pSSMHandle);
4352 }
4353
4354 pThis->iLog2DescSize = BCR_SWSTYLE(pThis)
4355 ? 4
4356 : 3;
4357 pThis->GCUpperPhys = BCR_SSIZE32(pThis)
4358 ? 0
4359 : (0xff00 & (uint32_t)pThis->aCSR[2]) << 16;
4360
4361 /* update promiscuous mode. */
4362 if (pThis->pDrv)
4363 pThis->pDrv->pfnSetPromiscuousMode(pThis->pDrv, CSR_PROM(pThis));
4364
4365#ifdef PCNET_NO_POLLING
4366 /* Enable physical monitoring again (!) */
4367 pcnetUpdateRingHandlers(pThis);
4368#endif
4369 /* Indicate link down to the guest OS that all network connections have been lost. */
4370 if (pThis->fLinkUp)
4371 {
4372 pThis->fLinkTempDown = true;
4373 pThis->cLinkDownReported = 0;
4374 pThis->aCSR[0] |= RT_BIT(15) | RT_BIT(13); /* ERR | CERR (this is probably wrong) */
4375 pThis->Led.Asserted.s.fError = pThis->Led.Actual.s.fError = 1;
4376 return TMTimerSetMillies(pThis->pTimerRestore, 5000);
4377 }
4378 return VINF_SUCCESS;
4379}
4380
4381
4382/**
4383 * Queries an interface to the driver.
4384 *
4385 * @returns Pointer to interface.
4386 * @returns NULL if the interface was not supported by the driver.
4387 * @param pInterface Pointer to this interface structure.
4388 * @param enmInterface The requested interface identification.
4389 * @thread Any thread.
4390 */
4391static DECLCALLBACK(void *) pcnetQueryInterface(struct PDMIBASE *pInterface, PDMINTERFACE enmInterface)
4392{
4393 PCNetState *pThis = (PCNetState *)((uintptr_t)pInterface - RT_OFFSETOF(PCNetState, IBase));
4394 Assert(&pThis->IBase == pInterface);
4395 switch (enmInterface)
4396 {
4397 case PDMINTERFACE_BASE:
4398 return &pThis->IBase;
4399 case PDMINTERFACE_NETWORK_PORT:
4400 return &pThis->INetworkPort;
4401 case PDMINTERFACE_NETWORK_CONFIG:
4402 return &pThis->INetworkConfig;
4403 case PDMINTERFACE_LED_PORTS:
4404 return &pThis->ILeds;
4405 default:
4406 return NULL;
4407 }
4408}
4409
4410/** Converts a pointer to PCNetState::INetworkPort to a PCNetState pointer. */
4411#define INETWORKPORT_2_DATA(pInterface) ( (PCNetState *)((uintptr_t)pInterface - RT_OFFSETOF(PCNetState, INetworkPort)) )
4412
4413
4414/**
4415 * Check if the device/driver can receive data now.
4416 * This must be called before the pfnRecieve() method is called.
4417 *
4418 * @returns VBox status code.
4419 * @param pInterface Pointer to the interface structure containing the called function pointer.
4420 */
4421static int pcnetCanReceive(PCNetState *pThis)
4422{
4423 int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
4424 AssertReleaseRC(rc);
4425
4426 rc = VERR_NET_NO_BUFFER_SPACE;
4427
4428 if (RT_LIKELY(!CSR_DRX(pThis) && !CSR_STOP(pThis) && !CSR_SPND(pThis)))
4429 {
4430 if (HOST_IS_OWNER(CSR_CRST(pThis)) && pThis->GCRDRA)
4431 pcnetRdtePoll(pThis);
4432
4433 if (RT_UNLIKELY(HOST_IS_OWNER(CSR_CRST(pThis))))
4434 {
4435 /** @todo Notify the guest _now_. Will potentially increase the interrupt load */
4436 if (pThis->fSignalRxMiss)
4437 pThis->aCSR[0] |= 0x1000; /* Set MISS flag */
4438 }
4439 else
4440 rc = VINF_SUCCESS;
4441 }
4442
4443 PDMCritSectLeave(&pThis->CritSect);
4444 return rc;
4445}
4446
4447
4448/**
4449 *
4450 */
4451static DECLCALLBACK(int) pcnetWaitReceiveAvail(PPDMINETWORKPORT pInterface, unsigned cMillies)
4452{
4453 PCNetState *pThis = INETWORKPORT_2_DATA(pInterface);
4454
4455 int rc = pcnetCanReceive(pThis);
4456 if (RT_SUCCESS(rc))
4457 return VINF_SUCCESS;
4458 if (RT_UNLIKELY(cMillies == 0))
4459 return VERR_NET_NO_BUFFER_SPACE;
4460
4461 rc = VERR_INTERRUPTED;
4462 ASMAtomicXchgBool(&pThis->fMaybeOutOfSpace, true);
4463 STAM_PROFILE_START(&pThis->StatRxOverflow, a);
4464 while (RT_LIKELY(PDMDevHlpVMState(pThis->CTX_SUFF(pDevIns)) == VMSTATE_RUNNING))
4465 {
4466 int rc2 = pcnetCanReceive(pThis);
4467 if (RT_SUCCESS(rc2))
4468 {
4469 rc = VINF_SUCCESS;
4470 break;
4471 }
4472 LogFlow(("pcnetWaitReceiveAvail: waiting cMillies=%u...\n", cMillies));
4473 /* Start the poll timer once which will remain active as long fMaybeOutOfSpace
4474 * is true -- even if (transmit) polling is disabled (CSR_DPOLL). */
4475 rc2 = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
4476 AssertReleaseRC(rc2);
4477 pcnetPollTimerStart(pThis);
4478 PDMCritSectLeave(&pThis->CritSect);
4479 RTSemEventWait(pThis->hEventOutOfRxSpace, cMillies);
4480 }
4481 STAM_PROFILE_STOP(&pThis->StatRxOverflow, a);
4482 ASMAtomicXchgBool(&pThis->fMaybeOutOfSpace, false);
4483
4484 return rc;
4485}
4486
4487
4488/**
4489 * Receive data from the network.
4490 *
4491 * @returns VBox status code.
4492 * @param pInterface Pointer to the interface structure containing the called function pointer.
4493 * @param pvBuf The available data.
4494 * @param cb Number of bytes available in the buffer.
4495 * @thread EMT
4496 */
4497static DECLCALLBACK(int) pcnetReceive(PPDMINETWORKPORT pInterface, const void *pvBuf, size_t cb)
4498{
4499 PCNetState *pThis = INETWORKPORT_2_DATA(pInterface);
4500 int rc;
4501
4502 STAM_PROFILE_ADV_START(&pThis->StatReceive, a);
4503 rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
4504 AssertReleaseRC(rc);
4505
4506 /*
4507 * Check for the max ethernet frame size, taking the IEEE 802.1Q (VLAN) tag into
4508 * account. Note that we are *not* expecting the CRC Checksum.
4509 * Ethernet frames consists of a 14-byte header [+ 4-byte vlan tag] + a 1500-byte body.
4510 */
4511 if (RT_LIKELY( cb <= 1514
4512 || ( cb <= 1518
4513 && ((PCRTNETETHERHDR)pvBuf)->EtherType == RT_H2BE_U16_C(RTNET_ETHERTYPE_VLAN))))
4514 {
4515 if (cb > 70) /* unqualified guess */
4516 pThis->Led.Asserted.s.fReading = pThis->Led.Actual.s.fReading = 1;
4517 pcnetReceiveNoSync(pThis, (const uint8_t *)pvBuf, cb);
4518 pThis->Led.Actual.s.fReading = 0;
4519 }
4520#ifdef LOG_ENABLED
4521 else
4522 {
4523 static bool s_fFirstBigFrameLoss = true;
4524 unsigned cbMaxFrame = ((PCRTNETETHERHDR)pvBuf)->EtherType == RT_H2BE_U16_C(RTNET_ETHERTYPE_VLAN)
4525 ? 1518 : 1514;
4526 if (s_fFirstBigFrameLoss)
4527 {
4528 s_fFirstBigFrameLoss = false;
4529 Log(("PCNet#%d: Received giant frame %zu, max %u. (Further giants will be reported at level5.)\n",
4530 PCNET_INST_NR, cb, cbMaxFrame));
4531 }
4532 else
4533 Log5(("PCNet#%d: Received giant frame %zu bytes, max %u.\n",
4534 PCNET_INST_NR, cb, cbMaxFrame));
4535 }
4536#endif /* LOG_ENABLED */
4537
4538 PDMCritSectLeave(&pThis->CritSect);
4539 STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a);
4540
4541 return VINF_SUCCESS;
4542}
4543
4544/** Converts a pointer to PCNetState::INetworkConfig to a PCNetState pointer. */
4545#define INETWORKCONFIG_2_DATA(pInterface) ( (PCNetState *)((uintptr_t)pInterface - RT_OFFSETOF(PCNetState, INetworkConfig)) )
4546
4547
4548/**
4549 * Gets the current Media Access Control (MAC) address.
4550 *
4551 * @returns VBox status code.
4552 * @param pInterface Pointer to the interface structure containing the called function pointer.
4553 * @param pMac Where to store the MAC address.
4554 * @thread EMT
4555 */
4556static DECLCALLBACK(int) pcnetGetMac(PPDMINETWORKCONFIG pInterface, PRTMAC pMac)
4557{
4558 PCNetState *pThis = INETWORKCONFIG_2_DATA(pInterface);
4559 memcpy(pMac, pThis->aPROM, sizeof(*pMac));
4560 return VINF_SUCCESS;
4561}
4562
4563
4564/**
4565 * Gets the new link state.
4566 *
4567 * @returns The current link state.
4568 * @param pInterface Pointer to the interface structure containing the called function pointer.
4569 * @thread EMT
4570 */
4571static DECLCALLBACK(PDMNETWORKLINKSTATE) pcnetGetLinkState(PPDMINETWORKCONFIG pInterface)
4572{
4573 PCNetState *pThis = INETWORKCONFIG_2_DATA(pInterface);
4574 if (pThis->fLinkUp && !pThis->fLinkTempDown)
4575 return PDMNETWORKLINKSTATE_UP;
4576 if (!pThis->fLinkUp)
4577 return PDMNETWORKLINKSTATE_DOWN;
4578 if (pThis->fLinkTempDown)
4579 return PDMNETWORKLINKSTATE_DOWN_RESUME;
4580 AssertMsgFailed(("Invalid link state!\n"));
4581 return PDMNETWORKLINKSTATE_INVALID;
4582}
4583
4584
4585/**
4586 * Sets the new link state.
4587 *
4588 * @returns VBox status code.
4589 * @param pInterface Pointer to the interface structure containing the called function pointer.
4590 * @param enmState The new link state
4591 * @thread EMT
4592 */
4593static DECLCALLBACK(int) pcnetSetLinkState(PPDMINETWORKCONFIG pInterface, PDMNETWORKLINKSTATE enmState)
4594{
4595 PCNetState *pThis = INETWORKCONFIG_2_DATA(pInterface);
4596 bool fLinkUp;
4597 if ( enmState != PDMNETWORKLINKSTATE_DOWN
4598 && enmState != PDMNETWORKLINKSTATE_UP)
4599 {
4600 AssertMsgFailed(("Invalid parameter enmState=%d\n", enmState));
4601 return VERR_INVALID_PARAMETER;
4602 }
4603
4604 /* has the state changed? */
4605 fLinkUp = enmState == PDMNETWORKLINKSTATE_UP;
4606 if (pThis->fLinkUp != fLinkUp)
4607 {
4608 pThis->fLinkUp = fLinkUp;
4609 if (fLinkUp)
4610 {
4611 /* connect */
4612 pThis->aCSR[0] &= ~(RT_BIT(15) | RT_BIT(13)); /* ERR | CERR - probably not 100% correct either... */
4613 pThis->Led.Actual.s.fError = 0;
4614 }
4615 else
4616 {
4617 /* disconnect */
4618 pThis->cLinkDownReported = 0;
4619 pThis->aCSR[0] |= RT_BIT(15) | RT_BIT(13); /* ERR | CERR (this is probably wrong) */
4620 pThis->Led.Asserted.s.fError = pThis->Led.Actual.s.fError = 1;
4621 }
4622 Assert(!PDMCritSectIsOwner(&pThis->CritSect));
4623 if (pThis->pDrv)
4624 pThis->pDrv->pfnNotifyLinkChanged(pThis->pDrv, enmState);
4625 }
4626 return VINF_SUCCESS;
4627}
4628
4629
4630/**
4631 * Gets the pointer to the status LED of a unit.
4632 *
4633 * @returns VBox status code.
4634 * @param pInterface Pointer to the interface structure containing the called function pointer.
4635 * @param iLUN The unit which status LED we desire.
4636 * @param ppLed Where to store the LED pointer.
4637 */
4638static DECLCALLBACK(int) pcnetQueryStatusLed(PPDMILEDPORTS pInterface, unsigned iLUN, PPDMLED *ppLed)
4639{
4640 PCNetState *pThis = (PCNetState *)( (uintptr_t)pInterface - RT_OFFSETOF(PCNetState, ILeds) );
4641 if (iLUN == 0)
4642 {
4643 *ppLed = &pThis->Led;
4644 return VINF_SUCCESS;
4645 }
4646 return VERR_PDM_LUN_NOT_FOUND;
4647}
4648
4649
4650/**
4651 * @copydoc FNPDMDEVPOWEROFF
4652 */
4653static DECLCALLBACK(void) pcnetPowerOff(PPDMDEVINS pDevIns)
4654{
4655 /* Poke thread waiting for buffer space. */
4656 pcnetWakeupReceive(pDevIns);
4657}
4658
4659
4660/**
4661 * @copydoc FNPDMDEVSUSPEND
4662 */
4663static DECLCALLBACK(void) pcnetSuspend(PPDMDEVINS pDevIns)
4664{
4665 /* Poke thread waiting for buffer space. */
4666 pcnetWakeupReceive(pDevIns);
4667}
4668
4669
4670/**
4671 * @copydoc FNPDMDEVRESET
4672 */
4673static DECLCALLBACK(void) pcnetReset(PPDMDEVINS pDevIns)
4674{
4675 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
4676 if (pThis->fLinkTempDown)
4677 {
4678 pThis->cLinkDownReported = 0x10000;
4679 TMTimerStop(pThis->pTimerRestore);
4680 pcnetTimerRestore(pDevIns, pThis->pTimerRestore);
4681 }
4682 if (pThis->pSharedMMIOR3)
4683 pcnetInitSharedMemory(pThis);
4684
4685 /** @todo How to flush the queues? */
4686 pcnetHardReset(pThis);
4687}
4688
4689
4690/**
4691 * @copydoc FNPDMDEVRELOCATE
4692 */
4693static DECLCALLBACK(void) pcnetRelocate(PPDMDEVINS pDevIns, RTGCINTPTR offDelta)
4694{
4695 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
4696 pThis->pDevInsRC = PDMDEVINS_2_RCPTR(pDevIns);
4697 pThis->pXmitQueueRC = PDMQueueRCPtr(pThis->pXmitQueueR3);
4698 pThis->pCanRxQueueRC = PDMQueueRCPtr(pThis->pCanRxQueueR3);
4699 if (pThis->pSharedMMIOR3)
4700 pThis->pSharedMMIORC += offDelta;
4701#ifdef PCNET_NO_POLLING
4702 pThis->pfnEMInterpretInstructionRC += offDelta;
4703#else
4704 pThis->pTimerPollRC = TMTimerRCPtr(pThis->pTimerPollR3);
4705#endif
4706 if (pThis->fAm79C973)
4707 pThis->pTimerSoftIntRC = TMTimerRCPtr(pThis->pTimerSoftIntR3);
4708}
4709
4710
4711/**
4712 * Destruct a device instance.
4713 *
4714 * Most VM resources are freed by the VM. This callback is provided so that any non-VM
4715 * resources can be freed correctly.
4716 *
4717 * @returns VBox status.
4718 * @param pDevIns The device instance data.
4719 */
4720static DECLCALLBACK(int) pcnetDestruct(PPDMDEVINS pDevIns)
4721{
4722 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
4723
4724 if (PDMCritSectIsInitialized(&pThis->CritSect))
4725 {
4726 /*
4727 * At this point the send thread is suspended and will not enter
4728 * this module again. So, no coordination is needed here and PDM
4729 * will take care of terminating and cleaning up the thread.
4730 */
4731 RTSemEventDestroy(pThis->hSendEventSem);
4732 pThis->hSendEventSem = NIL_RTSEMEVENT;
4733 RTSemEventSignal(pThis->hEventOutOfRxSpace);
4734 RTSemEventDestroy(pThis->hEventOutOfRxSpace);
4735 pThis->hEventOutOfRxSpace = NIL_RTSEMEVENT;
4736 PDMR3CritSectDelete(&pThis->CritSect);
4737 }
4738#ifdef PCNET_QUEUE_SEND_PACKETS
4739 if (pThis->apXmitRingBuffer)
4740 RTMemFree(pThis->apXmitRingBuffer[0]);
4741#endif
4742 return VINF_SUCCESS;
4743}
4744
4745
4746/**
4747 * Construct a device instance for a VM.
4748 *
4749 * @returns VBox status.
4750 * @param pDevIns The device instance data.
4751 * If the registration structure is needed, pDevIns->pDevReg points to it.
4752 * @param iInstance Instance number. Use this to figure out which registers and such to use.
4753 * The device number is also found in pDevIns->iInstance, but since it's
4754 * likely to be freqently used PDM passes it as parameter.
4755 * @param pCfgHandle Configuration node handle for the device. Use this to obtain the configuration
4756 * of the device instance. It's also found in pDevIns->pCfgHandle, but like
4757 * iInstance it's expected to be used a bit in this function.
4758 */
4759static DECLCALLBACK(int) pcnetConstruct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfgHandle)
4760{
4761 PCNetState *pThis = PDMINS_2_DATA(pDevIns, PCNetState *);
4762 PPDMIBASE pBase;
4763 char szTmp[128];
4764 int rc;
4765
4766 /* up to eight instances are supported */
4767 Assert((iInstance >= 0) && (iInstance < 8));
4768
4769 Assert(RT_ELEMENTS(pThis->aBCR) == BCR_MAX_RAP);
4770 Assert(RT_ELEMENTS(pThis->aMII) == MII_MAX_REG);
4771 Assert(sizeof(pThis->abSendBuf) == RT_ALIGN_Z(sizeof(pThis->abSendBuf), 16));
4772
4773 /*
4774 * Init what's required to make the destructor safe.
4775 */
4776 pThis->hEventOutOfRxSpace = NIL_RTSEMEVENT;
4777 pThis->hSendEventSem = NIL_RTSEMEVENT;
4778
4779 /*
4780 * Validate configuration.
4781 */
4782 if (!CFGMR3AreValuesValid(pCfgHandle, "MAC\0" "CableConnected\0" "Am79C973\0" "LineSpeed\0" "GCEnabled\0" "R0Enabled\0" "PrivIfEnabled\0"))
4783 return PDMDEV_SET_ERROR(pDevIns, VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES,
4784 N_("Invalid configuraton for pcnet device"));
4785
4786 /*
4787 * Read the configuration.
4788 */
4789 rc = CFGMR3QueryBytes(pCfgHandle, "MAC", &pThis->MacConfigured, sizeof(pThis->MacConfigured));
4790 if (RT_FAILURE(rc))
4791 return PDMDEV_SET_ERROR(pDevIns, rc,
4792 N_("Configuration error: Failed to get the \"MAC\" value"));
4793 rc = CFGMR3QueryBoolDef(pCfgHandle, "CableConnected", &pThis->fLinkUp, true);
4794 if (RT_FAILURE(rc))
4795 return PDMDEV_SET_ERROR(pDevIns, rc,
4796 N_("Configuration error: Failed to get the \"CableConnected\" value"));
4797
4798 rc = CFGMR3QueryBoolDef(pCfgHandle, "Am79C973", &pThis->fAm79C973, false);
4799 if (RT_FAILURE(rc))
4800 return PDMDEV_SET_ERROR(pDevIns, rc,
4801 N_("Configuration error: Failed to get the \"Am79C973\" value"));
4802
4803 rc = CFGMR3QueryU32Def(pCfgHandle, "LineSpeed", &pThis->u32LinkSpeed, 1000000); /* 1GBit/s (in kbps units)*/
4804 if (RT_FAILURE(rc))
4805 return PDMDEV_SET_ERROR(pDevIns, rc,
4806 N_("Configuration error: Failed to get the \"LineSpeed\" value"));
4807
4808#ifdef PCNET_GC_ENABLED
4809 rc = CFGMR3QueryBoolDef(pCfgHandle, "GCEnabled", &pThis->fGCEnabled, true);
4810 if (RT_FAILURE(rc))
4811 return PDMDEV_SET_ERROR(pDevIns, rc,
4812 N_("Configuration error: Failed to get the \"GCEnabled\" value"));
4813
4814 rc = CFGMR3QueryBoolDef(pCfgHandle, "R0Enabled", &pThis->fR0Enabled, true);
4815 if (RT_FAILURE(rc))
4816 return PDMDEV_SET_ERROR(pDevIns, rc,
4817 N_("Configuration error: Failed to get the \"R0Enabled\" value"));
4818
4819#else /* !PCNET_GC_ENABLED */
4820 pThis->fGCEnabled = false;
4821 pThis->fR0Enabled = false;
4822#endif /* !PCNET_GC_ENABLED */
4823
4824
4825 /*
4826 * Initialize data (most of it anyway).
4827 */
4828 pThis->pDevInsR3 = pDevIns;
4829 pThis->pDevInsR0 = PDMDEVINS_2_R0PTR(pDevIns);
4830 pThis->pDevInsRC = PDMDEVINS_2_RCPTR(pDevIns);
4831 pThis->Led.u32Magic = PDMLED_MAGIC;
4832 /* IBase */
4833 pThis->IBase.pfnQueryInterface = pcnetQueryInterface;
4834 /* INeworkPort */
4835 pThis->INetworkPort.pfnWaitReceiveAvail = pcnetWaitReceiveAvail;
4836 pThis->INetworkPort.pfnReceive = pcnetReceive;
4837 /* INetworkConfig */
4838 pThis->INetworkConfig.pfnGetMac = pcnetGetMac;
4839 pThis->INetworkConfig.pfnGetLinkState = pcnetGetLinkState;
4840 pThis->INetworkConfig.pfnSetLinkState = pcnetSetLinkState;
4841 /* ILeds */
4842 pThis->ILeds.pfnQueryStatusLed = pcnetQueryStatusLed;
4843
4844 /* PCI Device */
4845 PCIDevSetVendorId(&pThis->PciDev, 0x1022);
4846 PCIDevSetDeviceId(&pThis->PciDev, 0x2000);
4847 pThis->PciDev.config[0x04] = 0x07; /* command */
4848 pThis->PciDev.config[0x05] = 0x00;
4849 pThis->PciDev.config[0x06] = 0x80; /* status */
4850 pThis->PciDev.config[0x07] = 0x02;
4851 pThis->PciDev.config[0x08] = pThis->fAm79C973 ? 0x40 : 0x10; /* revision */
4852 pThis->PciDev.config[0x09] = 0x00;
4853 pThis->PciDev.config[0x0a] = 0x00; /* ethernet network controller */
4854 pThis->PciDev.config[0x0b] = 0x02;
4855 pThis->PciDev.config[0x0e] = 0x00; /* header_type */
4856
4857 pThis->PciDev.config[0x10] = 0x01; /* IO Base */
4858 pThis->PciDev.config[0x11] = 0x00;
4859 pThis->PciDev.config[0x12] = 0x00;
4860 pThis->PciDev.config[0x13] = 0x00;
4861 pThis->PciDev.config[0x14] = 0x00; /* MMIO Base */
4862 pThis->PciDev.config[0x15] = 0x00;
4863 pThis->PciDev.config[0x16] = 0x00;
4864 pThis->PciDev.config[0x17] = 0x00;
4865
4866 /* subsystem and subvendor IDs */
4867 pThis->PciDev.config[0x2c] = 0x22; /* subsystem vendor id */
4868 pThis->PciDev.config[0x2d] = 0x10;
4869 pThis->PciDev.config[0x2e] = 0x00; /* subsystem id */
4870 pThis->PciDev.config[0x2f] = 0x20;
4871 pThis->PciDev.config[0x3d] = 1; /* interrupt pin 0 */
4872 pThis->PciDev.config[0x3e] = 0x06;
4873 pThis->PciDev.config[0x3f] = 0xff;
4874
4875 /*
4876 * Register the PCI device, its I/O regions, the timer and the saved state item.
4877 */
4878 rc = PDMDevHlpPCIRegister(pDevIns, &pThis->PciDev);
4879 if (RT_FAILURE(rc))
4880 return rc;
4881 rc = PDMDevHlpPCIIORegionRegister(pDevIns, 0, PCNET_IOPORT_SIZE,
4882 PCI_ADDRESS_SPACE_IO, pcnetIOPortMap);
4883 if (RT_FAILURE(rc))
4884 return rc;
4885 rc = PDMDevHlpPCIIORegionRegister(pDevIns, 1, PCNET_PNPMMIO_SIZE,
4886 PCI_ADDRESS_SPACE_MEM, pcnetMMIOMap);
4887 if (RT_FAILURE(rc))
4888 return rc;
4889
4890 bool fPrivIfEnabled;
4891 rc = CFGMR3QueryBool(pCfgHandle, "PrivIfEnabled", &fPrivIfEnabled);
4892 if (rc == VERR_CFGM_VALUE_NOT_FOUND)
4893 fPrivIfEnabled = true;
4894 else if (RT_FAILURE(rc))
4895 return PDMDEV_SET_ERROR(pDevIns, rc,
4896 N_("Configuration error: Failed to get the \"PrivIfEnabled\" value"));
4897
4898 if (fPrivIfEnabled)
4899 {
4900 /*
4901 * Initialize shared memory between host and guest for descriptors and RX buffers. Most guests
4902 * should not care if there is an additional PCI ressource but just in case we made this configurable.
4903 */
4904 rc = PDMDevHlpMMIO2Register(pDevIns, 2, PCNET_GUEST_SHARED_MEMORY_SIZE, 0, (void **)&pThis->pSharedMMIOR3, "PCNetShMem");
4905 if (RT_FAILURE(rc))
4906 return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
4907 N_("Failed to allocate %u bytes of memory for the PCNet device"), PCNET_GUEST_SHARED_MEMORY_SIZE);
4908 rc = PDMDevHlpMMHyperMapMMIO2(pDevIns, 2, 0, 8192, "PCNetShMem", &pThis->pSharedMMIORC);
4909 if (RT_FAILURE(rc))
4910 return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
4911 N_("Failed to map 8192 bytes of memory for the PCNet device into the hyper memory"));
4912 pThis->pSharedMMIOR0 = (uintptr_t)pThis->pSharedMMIOR3; /** @todo #1865: Map MMIO2 into ring-0. */
4913
4914 pcnetInitSharedMemory(pThis);
4915 rc = PDMDevHlpPCIIORegionRegister(pDevIns, 2, PCNET_GUEST_SHARED_MEMORY_SIZE,
4916 PCI_ADDRESS_SPACE_MEM, pcnetMMIOSharedMap);
4917 if (RT_FAILURE(rc))
4918 return rc;
4919 }
4920
4921#ifdef PCNET_NO_POLLING
4922 /*
4923 * Resolve the R0 and RC handlers.
4924 */
4925 rc = PDMR3LdrGetSymbolR0Lazy(PDMDevHlpGetVM(pDevIns), NULL, "EMInterpretInstruction", &pThis->pfnEMInterpretInstructionR0);
4926 if (RT_SUCCESS(rc))
4927 rc = PDMR3LdrGetSymbolRCLazy(PDMDevHlpGetVM(pDevIns), NULL, "EMInterpretInstruction", (RTGCPTR *)&pThis->pfnEMInterpretInstructionRC);
4928 AssertLogRelMsgRCReturn(rc, ("PDMR3LdrGetSymbolRCLazy(EMInterpretInstruction) -> %Rrc\n", rc), rc);
4929#else
4930 rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_VIRTUAL, pcnetTimer,
4931 "PCNet Poll Timer", &pThis->pTimerPollR3);
4932 if (RT_FAILURE(rc))
4933 return rc;
4934 pThis->pTimerPollR0 = TMTimerR0Ptr(pThis->pTimerPollR3);
4935 pThis->pTimerPollRC = TMTimerRCPtr(pThis->pTimerPollR3);
4936#endif
4937 if (pThis->fAm79C973)
4938 {
4939 /* Software Interrupt timer */
4940 rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_VIRTUAL, pcnetTimerSoftInt,
4941 "PCNet SoftInt Timer", &pThis->pTimerSoftIntR3);
4942 if (RT_FAILURE(rc))
4943 return rc;
4944 pThis->pTimerSoftIntR0 = TMTimerR0Ptr(pThis->pTimerSoftIntR3);
4945 pThis->pTimerSoftIntRC = TMTimerRCPtr(pThis->pTimerSoftIntR3);
4946 }
4947 rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_VIRTUAL, pcnetTimerRestore,
4948 "PCNet Restore Timer", &pThis->pTimerRestore);
4949 if (RT_FAILURE(rc))
4950 return rc;
4951
4952 rc = PDMDevHlpSSMRegister(pDevIns, pDevIns->pDevReg->szDeviceName, iInstance,
4953 PCNET_SAVEDSTATE_VERSION, sizeof(*pThis),
4954 pcnetSavePrep, pcnetSaveExec, NULL,
4955 pcnetLoadPrep, pcnetLoadExec, NULL);
4956 if (RT_FAILURE(rc))
4957 return rc;
4958
4959 /*
4960 * Initialize critical section.
4961 * This must of course be done before attaching drivers or anything else which can call us back.
4962 */
4963 char szName[24];
4964 RTStrPrintf(szName, sizeof(szName), "PCNet#%d", iInstance);
4965 rc = PDMDevHlpCritSectInit(pDevIns, &pThis->CritSect, szName);
4966 if (RT_FAILURE(rc))
4967 return rc;
4968
4969 rc = RTSemEventCreate(&pThis->hEventOutOfRxSpace);
4970 AssertRC(rc);
4971
4972 /*
4973 * Create the transmit queue.
4974 */
4975 rc = PDMDevHlpPDMQueueCreate(pDevIns, sizeof(PDMQUEUEITEMCORE), 1, 0,
4976 pcnetXmitQueueConsumer, true, &pThis->pXmitQueueR3);
4977 if (RT_FAILURE(rc))
4978 return rc;
4979 pThis->pXmitQueueR0 = PDMQueueR0Ptr(pThis->pXmitQueueR3);
4980 pThis->pXmitQueueRC = PDMQueueRCPtr(pThis->pXmitQueueR3);
4981
4982 /*
4983 * Create the RX notifer signaller.
4984 */
4985 rc = PDMDevHlpPDMQueueCreate(pDevIns, sizeof(PDMQUEUEITEMCORE), 1, 0,
4986 pcnetCanRxQueueConsumer, true, &pThis->pCanRxQueueR3);
4987 if (RT_FAILURE(rc))
4988 return rc;
4989 pThis->pCanRxQueueR0 = PDMQueueR0Ptr(pThis->pCanRxQueueR3);
4990 pThis->pCanRxQueueRC = PDMQueueRCPtr(pThis->pCanRxQueueR3);
4991
4992 /*
4993 * Register the info item.
4994 */
4995 RTStrPrintf(szTmp, sizeof(szTmp), "pcnet%d", pDevIns->iInstance);
4996 PDMDevHlpDBGFInfoRegister(pDevIns, szTmp, "PCNET info.", pcnetInfo);
4997
4998 /*
4999 * Attach status driver (optional).
5000 */
5001 rc = PDMDevHlpDriverAttach(pDevIns, PDM_STATUS_LUN, &pThis->IBase, &pBase, "Status Port");
5002 if (RT_SUCCESS(rc))
5003 pThis->pLedsConnector = (PPDMILEDCONNECTORS)
5004 pBase->pfnQueryInterface(pBase, PDMINTERFACE_LED_CONNECTORS);
5005 else if (rc != VERR_PDM_NO_ATTACHED_DRIVER)
5006 {
5007 AssertMsgFailed(("Failed to attach to status driver. rc=%Rrc\n", rc));
5008 return rc;
5009 }
5010
5011 /*
5012 * Attach driver.
5013 */
5014 rc = PDMDevHlpDriverAttach(pDevIns, 0, &pThis->IBase, &pThis->pDrvBase, "Network Port");
5015 if (RT_SUCCESS(rc))
5016 {
5017 if (rc == VINF_NAT_DNS)
5018 {
5019#ifdef RT_OS_LINUX
5020 PDMDevHlpVMSetRuntimeError(pDevIns, 0 /*fFlags*/, "NoDNSforNAT",
5021 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"));
5022#else
5023 PDMDevHlpVMSetRuntimeError(pDevIns, 0 /*fFlags*/, "NoDNSforNAT",
5024 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"));
5025#endif
5026 }
5027 pThis->pDrv = (PPDMINETWORKCONNECTOR)
5028 pThis->pDrvBase->pfnQueryInterface(pThis->pDrvBase, PDMINTERFACE_NETWORK_CONNECTOR);
5029 if (!pThis->pDrv)
5030 {
5031 AssertMsgFailed(("Failed to obtain the PDMINTERFACE_NETWORK_CONNECTOR interface!\n"));
5032 return VERR_PDM_MISSING_INTERFACE_BELOW;
5033 }
5034 }
5035 else if (rc == VERR_PDM_NO_ATTACHED_DRIVER)
5036 Log(("No attached driver!\n"));
5037 else
5038 return rc;
5039
5040 /*
5041 * Reset the device state. (Do after attaching.)
5042 */
5043 pcnetHardReset(pThis);
5044
5045 /* Create send queue for the async send thread. */
5046 rc = RTSemEventCreate(&pThis->hSendEventSem);
5047 AssertRC(rc);
5048
5049 /* Create asynchronous thread */
5050 rc = PDMDevHlpPDMThreadCreate(pDevIns, &pThis->pSendThread, pThis, pcnetAsyncSendThread, pcnetAsyncSendThreadWakeUp, 0, RTTHREADTYPE_IO, "PCNET_TX");
5051 AssertRCReturn(rc, rc);
5052
5053#ifdef PCNET_QUEUE_SEND_PACKETS
5054 pThis->apXmitRingBuffer[0] = (uint8_t *)RTMemAlloc(PCNET_MAX_XMIT_SLOTS * MAX_FRAME);
5055 for (unsigned i = 1; i < PCNET_MAX_XMIT_SLOTS; i++)
5056 pThis->apXmitRingBuffer[i] = pThis->apXmitRingBuffer[0] + i*MAX_FRAME;
5057#endif
5058
5059#ifdef VBOX_WITH_STATISTICS
5060 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatMMIOReadGC, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling MMIO reads in GC", "/Devices/PCNet%d/MMIO/ReadGC", iInstance);
5061 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatMMIOReadHC, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling MMIO reads in HC", "/Devices/PCNet%d/MMIO/ReadHC", iInstance);
5062 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatMMIOWriteGC, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling MMIO writes in GC", "/Devices/PCNet%d/MMIO/WriteGC", iInstance);
5063 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatMMIOWriteHC, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling MMIO writes in HC", "/Devices/PCNet%d/MMIO/WriteHC", iInstance);
5064 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatAPROMRead, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling APROM reads", "/Devices/PCNet%d/IO/APROMRead", iInstance);
5065 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatAPROMWrite, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling APROM writes", "/Devices/PCNet%d/IO/APROMWrite", iInstance);
5066 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatIOReadGC, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling IO reads in GC", "/Devices/PCNet%d/IO/ReadGC", iInstance);
5067 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatIOReadHC, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling IO reads in HC", "/Devices/PCNet%d/IO/ReadHC", iInstance);
5068 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatIOWriteGC, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling IO writes in GC", "/Devices/PCNet%d/IO/WriteGC", iInstance);
5069 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatIOWriteHC, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling IO writes in HC", "/Devices/PCNet%d/IO/WriteHC", iInstance);
5070 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatTimer, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling Timer", "/Devices/PCNet%d/Timer", iInstance);
5071 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatReceive, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling receive", "/Devices/PCNet%d/Receive", iInstance);
5072 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatRxOverflow, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_OCCURENCE, "Profiling RX overflows", "/Devices/PCNet%d/RxOverflow", iInstance);
5073 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatRxOverflowWakeup, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_OCCURENCE, "Nr of RX overflow wakeups", "/Devices/PCNet%d/RxOverflowWakeup", iInstance);
5074#endif
5075 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatReceiveBytes, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Amount of data received", "/Devices/PCNet%d/ReceiveBytes", iInstance);
5076#ifdef VBOX_WITH_STATISTICS
5077 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatTransmit, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling transmits in HC", "/Devices/PCNet%d/Transmit/Total", iInstance);
5078#endif
5079 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatTransmitBytes, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Amount of data transmitted", "/Devices/PCNet%d/TransmitBytes", iInstance);
5080#ifdef VBOX_WITH_STATISTICS
5081 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatTransmitSend, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling PCNet send transmit in HC","/Devices/PCNet%d/Transmit/Send", iInstance);
5082 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatTdtePollGC, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling PCNet TdtePoll in GC", "/Devices/PCNet%d/TdtePollGC", iInstance);
5083 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatTdtePollHC, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling PCNet TdtePoll in HC", "/Devices/PCNet%d/TdtePollHC", iInstance);
5084 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatRdtePollGC, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling PCNet RdtePoll in GC", "/Devices/PCNet%d/RdtePollGC", iInstance);
5085 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatRdtePollHC, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling PCNet RdtePoll in HC", "/Devices/PCNet%d/RdtePollHC", iInstance);
5086
5087 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatTmdStoreGC, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling PCNet TmdStore in GC", "/Devices/PCNet%d/TmdStoreGC", iInstance);
5088 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatTmdStoreHC, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling PCNet TmdStore in HC", "/Devices/PCNet%d/TmdStoreHC", iInstance);
5089
5090 unsigned i;
5091 for (i = 0; i < RT_ELEMENTS(pThis->aStatXmitFlush) - 1; i++)
5092 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->aStatXmitFlush[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES, "", "/Devices/PCNet%d/XmitFlushIrq/%d", iInstance, i + 1);
5093 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->aStatXmitFlush[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES, "", "/Devices/PCNet%d/XmitFlushIrq/%d+", iInstance, i + 1);
5094
5095 for (i = 0; i < RT_ELEMENTS(pThis->aStatXmitChainCounts) - 1; i++)
5096 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->aStatXmitChainCounts[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES, "", "/Devices/PCNet%d/XmitChainCounts/%d", iInstance, i + 1);
5097 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->aStatXmitChainCounts[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES, "", "/Devices/PCNet%d/XmitChainCounts/%d+", iInstance, i + 1);
5098
5099 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatXmitSkipCurrent, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "", "/Devices/PCNet%d/Xmit/Skipped", iInstance, i + 1);
5100
5101 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatInterrupt, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling interrupt checks", "/Devices/PCNet%d/UpdateIRQ", iInstance);
5102 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatPollTimer, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling poll timer", "/Devices/PCNet%d/PollTimer", iInstance);
5103 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatMIIReads, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of MII reads", "/Devices/PCNet%d/MIIReads", iInstance);
5104# ifdef PCNET_NO_POLLING
5105 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatRCVRingWrite, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Nr of receive ring writes", "/Devices/PCNet%d/Ring/RCVWrites", iInstance);
5106 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatTXRingWrite, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Nr of transmit ring writes", "/Devices/PCNet%d/Ring/TXWrites", iInstance);
5107 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatRingWriteHC, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Nr of monitored ring page writes", "/Devices/PCNet%d/Ring/HC/Writes", iInstance);
5108 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatRingWriteR0, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Nr of monitored ring page writes", "/Devices/PCNet%d/Ring/R0/Writes", iInstance);
5109 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatRingWriteGC, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Nr of monitored ring page writes", "/Devices/PCNet%d/Ring/GC/Writes", iInstance);
5110 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatRingWriteFailedHC, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Nr of failed ring page writes", "/Devices/PCNet%d/Ring/HC/Failed", iInstance);
5111 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatRingWriteFailedR0, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Nr of failed ring page writes", "/Devices/PCNet%d/Ring/R0/Failed", iInstance);
5112 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatRingWriteFailedGC, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Nr of failed ring page writes", "/Devices/PCNet%d/Ring/GC/Failed", iInstance);
5113 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatRingWriteOutsideHC, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Nr of monitored writes outside ring","/Devices/PCNet%d/Ring/HC/Outside", iInstance);
5114 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatRingWriteOutsideR0, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Nr of monitored writes outside ring","/Devices/PCNet%d/Ring/R0/Outside", iInstance);
5115 PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatRingWriteOutsideGC, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Nr of monitored writes outside ring","/Devices/PCNet%d/Ring/GC/Outside", iInstance);
5116# endif /* PCNET_NO_POLLING */
5117#endif
5118
5119 return VINF_SUCCESS;
5120}
5121
5122
5123/**
5124 * The device registration structure.
5125 */
5126const PDMDEVREG g_DevicePCNet =
5127{
5128 /* u32Version */
5129 PDM_DEVREG_VERSION,
5130 /* szDeviceName */
5131 "pcnet",
5132 /* szRCMod */
5133#ifdef PCNET_GC_ENABLED
5134 "VBoxDDGC.gc",
5135 "VBoxDDR0.r0",
5136#else
5137 "",
5138 "",
5139#endif
5140 /* pszDescription */
5141 "AMD PC-Net II Ethernet controller.\n",
5142 /* fFlags */
5143#ifdef PCNET_GC_ENABLED
5144 PDM_DEVREG_FLAGS_DEFAULT_BITS | PDM_DEVREG_FLAGS_RC | PDM_DEVREG_FLAGS_R0,
5145#else
5146 PDM_DEVREG_FLAGS_DEFAULT_BITS,
5147#endif
5148 /* fClass */
5149 PDM_DEVREG_CLASS_NETWORK,
5150 /* cMaxInstances */
5151 8,
5152 /* cbInstance */
5153 sizeof(PCNetState),
5154 /* pfnConstruct */
5155 pcnetConstruct,
5156 /* pfnDestruct */
5157 pcnetDestruct,
5158 /* pfnRelocate */
5159 pcnetRelocate,
5160 /* pfnIOCtl */
5161 NULL,
5162 /* pfnPowerOn */
5163 NULL,
5164 /* pfnReset */
5165 pcnetReset,
5166 /* pfnSuspend */
5167 pcnetSuspend,
5168 /* pfnResume */
5169 NULL,
5170 /* pfnAttach */
5171 NULL,
5172 /* pfnDetach */
5173 NULL,
5174 /* pfnQueryInterface. */
5175 NULL,
5176 /* pfnInitComplete. */
5177 NULL,
5178 /* pfnPowerOff. */
5179 pcnetPowerOff,
5180 /* pfnSoftReset */
5181 NULL,
5182 /* u32VersionEnd */
5183 PDM_DEVREG_VERSION
5184};
5185
5186#endif /* IN_RING3 */
5187#endif /* !VBOX_DEVICE_STRUCT_TESTCASE */
5188
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