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source: vbox/trunk/src/VBox/Devices/Storage/DevBusLogic.cpp@ 40754

Last change on this file since 40754 was 40640, checked in by vboxsync, 12 years ago
Renamed SCSI BIOS constants to elucidate their purpose.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 124.9 KB

Line
1	/* $Id: DevBusLogic.cpp 40640 2012-03-26 12:55:17Z vboxsync $ */
2	/** @file
3	* VBox storage devices: BusLogic SCSI host adapter BT-958.
4	*/
5
6	/*
7	* Copyright (C) 2006-2009 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18	/* Implemented looking at the driver source in the linux kernel (drivers/scsi/BusLogic.[ch]).
19	* See also: http://www.drdobbs.com/184410111
20	*/
21
22	/*******************************************************************************
23	* Header Files *
24	*******************************************************************************/
25	//#define DEBUG
26	#define LOG_GROUP LOG_GROUP_DEV_BUSLOGIC
27	#include <VBox/vmm/pdmdev.h>
28	#include <VBox/vmm/pdmifs.h>
29	#include <VBox/vmm/pdmcritsect.h>
30	#include <VBox/scsi.h>
31	#include <iprt/asm.h>
32	#include <iprt/assert.h>
33	#include <iprt/string.h>
34	#include <iprt/log.h>
35	#ifdef IN_RING3
36	# include <iprt/alloc.h>
37	# include <iprt/memcache.h>
38	# include <iprt/param.h>
39	# include <iprt/uuid.h>
40	#endif
41
42	#include "VBoxSCSI.h"
43	#include "VBoxDD.h"
44
45	/* Maximum number of attached devices the adapter can handle. */
46	#define BUSLOGIC_MAX_DEVICES 16
47
48	/* Maximum number of scatter gather elements this device can handle. */
49	#define BUSLOGIC_MAX_SCATTER_GATHER_LIST_SIZE 128
50
51	/* Size of the command buffer. */
52	#define BUSLOGIC_COMMAND_SIZE_MAX 5
53
54	/* Size of the reply buffer. */
55	#define BUSLOGIC_REPLY_SIZE_MAX 64
56
57	/*
58	* Custom fixed I/O ports for BIOS controller access. Note that these should
59	* not be in the ISA range (below 400h) to avoid conflicts with ISA device
60	* probing. Addresses in the 300h-340h range should be especially avoided.
61	*/
62
63	#define BUSLOGIC_BIOS_IO_PORT 0x330
64
65	/** State saved version. */
66	#define BUSLOGIC_SAVED_STATE_MINOR_VERSION 2
67
68	/** Saved state version before the suspend on error feature was implemented. */
69	#define BUSLOGIC_SAVED_STATE_MINOR_PRE_ERROR_HANDLING 1
70
71	/**
72	* State of a device attached to the buslogic host adapter.
73	*
74	* @implements PDMIBASE
75	* @implements PDMISCSIPORT
76	* @implements PDMILEDPORTS
77	*/
78	typedef struct BUSLOGICDEVICE
79	{
80	/** Pointer to the owning buslogic device instance. - R3 pointer */
81	R3PTRTYPE(struct BUSLOGIC *) pBusLogicR3;
82	/** Pointer to the owning buslogic device instance. - R0 pointer */
83	R0PTRTYPE(struct BUSLOGIC *) pBusLogicR0;
84	/** Pointer to the owning buslogic device instance. - RC pointer */
85	RCPTRTYPE(struct BUSLOGIC *) pBusLogicRC;
86
87	/** Flag whether device is present. */
88	bool fPresent;
89	/** LUN of the device. */
90	RTUINT iLUN;
91
92	#if HC_ARCH_BITS == 64
93	uint32_t Alignment0;
94	#endif
95
96	/** Our base interface. */
97	PDMIBASE IBase;
98	/** SCSI port interface. */
99	PDMISCSIPORT ISCSIPort;
100	/** Led interface. */
101	PDMILEDPORTS ILed;
102	/** Pointer to the attached driver's base interface. */
103	R3PTRTYPE(PPDMIBASE) pDrvBase;
104	/** Pointer to the underlying SCSI connector interface. */
105	R3PTRTYPE(PPDMISCSICONNECTOR) pDrvSCSIConnector;
106	/** The status LED state for this device. */
107	PDMLED Led;
108
109	#if HC_ARCH_BITS == 64
110	uint32_t Alignment1;
111	#endif
112
113	/** Number of outstanding tasks on the port. */
114	volatile uint32_t cOutstandingRequests;
115
116	} BUSLOGICDEVICE, *PBUSLOGICDEVICE;
117
118	/*
119	* Commands the BusLogic adapter supports.
120	*/
121	enum BUSLOGICCOMMAND
122	{
123	BUSLOGICCOMMAND_TEST_COMMAND_COMPLETE_INTERRUPT = 0x00,
124	BUSLOGICCOMMAND_INITIALIZE_MAILBOX = 0x01,
125	BUSLOGICCOMMAND_EXECUTE_MAILBOX_COMMAND = 0x02,
126	BUSLOGICCOMMAND_EXECUTE_BIOS_COMMAND = 0x03,
127	BUSLOGICCOMMAND_INQUIRE_BOARD_ID = 0x04,
128	BUSLOGICCOMMAND_ENABLE_OUTGOING_MAILBOX_AVAILABLE_INTERRUPT = 0x05,
129	BUSLOGICCOMMAND_SET_SCSI_SELECTION_TIMEOUT = 0x06,
130	BUSLOGICCOMMAND_SET_PREEMPT_TIME_ON_BUS = 0x07,
131	BUSLOGICCOMMAND_SET_TIME_OFF_BUS = 0x08,
132	BUSLOGICCOMMAND_SET_BUS_TRANSFER_RATE = 0x09,
133	BUSLOGICCOMMAND_INQUIRE_INSTALLED_DEVICES_ID_0_TO_7 = 0x0a,
134	BUSLOGICCOMMAND_INQUIRE_CONFIGURATION = 0x0b,
135	BUSLOGICCOMMAND_ENABLE_TARGET_MODE = 0x0c,
136	BUSLOGICCOMMAND_INQUIRE_SETUP_INFORMATION = 0x0d,
137	BUSLOGICCOMMAND_WRITE_ADAPTER_LOCAL_RAM = 0x1a,
138	BUSLOGICCOMMAND_READ_ADAPTER_LOCAL_RAM = 0x1b,
139	BUSLOGICCOMMAND_WRITE_BUSMASTER_CHIP_FIFO = 0x1c,
140	BUSLOGICCOMMAND_READ_BUSMASTER_CHIP_FIFO = 0x1d,
141	BUSLOGICCOMMAND_ECHO_COMMAND_DATA = 0x1f,
142	BUSLOGICCOMMAND_HOST_ADAPTER_DIAGNOSTIC = 0x20,
143	BUSLOGICCOMMAND_SET_ADAPTER_OPTIONS = 0x21,
144	BUSLOGICCOMMAND_INQUIRE_INSTALLED_DEVICES_ID_8_TO_15 = 0x23,
145	BUSLOGICCOMMAND_INQUIRE_TARGET_DEVICES = 0x24,
146	BUSLOGICCOMMAND_DISABLE_HOST_ADAPTER_INTERRUPT = 0x25,
147	BUSLOGICCOMMAND_EXT_BIOS_INFO = 0x28,
148	BUSLOGICCOMMAND_UNLOCK_MAILBOX = 0x29,
149	BUSLOGICCOMMAND_INITIALIZE_EXTENDED_MAILBOX = 0x81,
150	BUSLOGICCOMMAND_EXECUTE_SCSI_COMMAND = 0x83,
151	BUSLOGICCOMMAND_INQUIRE_FIRMWARE_VERSION_3RD_LETTER = 0x84,
152	BUSLOGICCOMMAND_INQUIRE_FIRMWARE_VERSION_LETTER = 0x85,
153	BUSLOGICCOMMAND_INQUIRE_PCI_HOST_ADAPTER_INFORMATION = 0x86,
154	BUSLOGICCOMMAND_INQUIRE_HOST_ADAPTER_MODEL_NUMBER = 0x8b,
155	BUSLOGICCOMMAND_INQUIRE_SYNCHRONOUS_PERIOD = 0x8c,
156	BUSLOGICCOMMAND_INQUIRE_EXTENDED_SETUP_INFORMATION = 0x8d,
157	BUSLOGICCOMMAND_ENABLE_STRICT_ROUND_ROBIN_MODE = 0x8f,
158	BUSLOGICCOMMAND_STORE_HOST_ADAPTER_LOCAL_RAM = 0x90,
159	BUSLOGICCOMMAND_FETCH_HOST_ADAPTER_LOCAL_RAM = 0x91,
160	BUSLOGICCOMMAND_STORE_LOCAL_DATA_IN_EEPROM = 0x92,
161	BUSLOGICCOMMAND_UPLOAD_AUTO_SCSI_CODE = 0x94,
162	BUSLOGICCOMMAND_MODIFY_IO_ADDRESS = 0x95,
163	BUSLOGICCOMMAND_SET_CCB_FORMAT = 0x96,
164	BUSLOGICCOMMAND_WRITE_INQUIRY_BUFFER = 0x9a,
165	BUSLOGICCOMMAND_READ_INQUIRY_BUFFER = 0x9b,
166	BUSLOGICCOMMAND_FLASH_ROM_UPLOAD_DOWNLOAD = 0xa7,
167	BUSLOGICCOMMAND_READ_SCAM_DATA = 0xa8,
168	BUSLOGICCOMMAND_WRITE_SCAM_DATA = 0xa9
169	} BUSLOGICCOMMAND;
170
171	#pragma pack(1)
172	/**
173	* Auto SCSI structure which is located
174	* in host adapter RAM and contains several
175	* configuration parameters.
176	*/
177	typedef struct AutoSCSIRam
178	{
179	uint8_t aInternalSignature[2];
180	uint8_t cbInformation;
181	uint8_t aHostAdaptertype[6];
182	uint8_t uReserved1;
183	bool fFloppyEnabled: 1;
184	bool fFloppySecondary: 1;
185	bool fLevelSensitiveInterrupt: 1;
186	unsigned char uReserved2: 2;
187	unsigned char uSystemRAMAreForBIOS: 3;
188	unsigned char uDMAChannel: 7;
189	bool fDMAAutoConfiguration: 1;
190	unsigned char uIrqChannel: 7;
191	bool fIrqAutoConfiguration: 1;
192	uint8_t uDMATransferRate;
193	uint8_t uSCSIId;
194	bool fLowByteTerminated: 1;
195	bool fParityCheckingEnabled: 1;
196	bool fHighByteTerminated: 1;
197	bool fNoisyCablingEnvironment: 1;
198	bool fFastSynchronousNeogtiation: 1;
199	bool fBusResetEnabled: 1;
200	bool fReserved3: 1;
201	bool fActiveNegotiationEnabled: 1;
202	uint8_t uBusOnDelay;
203	uint8_t uBusOffDelay;
204	bool fHostAdapterBIOSEnabled: 1;
205	bool fBIOSRedirectionOfInt19: 1;
206	bool fExtendedTranslation: 1;
207	bool fMapRemovableAsFixed: 1;
208	bool fReserved4: 1;
209	bool fBIOSSupportsMoreThan2Drives: 1;
210	bool fBIOSInterruptMode: 1;
211	bool fFlopticalSupport: 1;
212	uint16_t u16DeviceEnabledMask;
213	uint16_t u16WidePermittedMask;
214	uint16_t u16FastPermittedMask;
215	uint16_t u16SynchronousPermittedMask;
216	uint16_t u16DisconnectPermittedMask;
217	uint16_t u16SendStartUnitCommandMask;
218	uint16_t u16IgnoreInBIOSScanMask;
219	unsigned char uPCIInterruptPin: 2;
220	unsigned char uHostAdapterIoPortAddress: 2;
221	bool fStrictRoundRobinMode: 1;
222	bool fVesaBusSpeedGreaterThan33MHz: 1;
223	bool fVesaBurstWrite: 1;
224	bool fVesaBurstRead: 1;
225	uint16_t u16UltraPermittedMask;
226	uint32_t uReserved5;
227	uint8_t uReserved6;
228	uint8_t uAutoSCSIMaximumLUN;
229	bool fReserved7: 1;
230	bool fSCAMDominant: 1;
231	bool fSCAMenabled: 1;
232	bool fSCAMLevel2: 1;
233	unsigned char uReserved8: 4;
234	bool fInt13Extension: 1;
235	bool fReserved9: 1;
236	bool fCDROMBoot: 1;
237	unsigned char uReserved10: 5;
238	unsigned char uBootTargetId: 4;
239	unsigned char uBootChannel: 4;
240	bool fForceBusDeviceScanningOrder: 1;
241	unsigned char uReserved11: 7;
242	uint16_t u16NonTaggedToAlternateLunPermittedMask;
243	uint16_t u16RenegotiateSyncAfterCheckConditionMask;
244	uint8_t aReserved12[10];
245	uint8_t aManufacturingDiagnostic[2];
246	uint16_t u16Checksum;
247	} AutoSCSIRam, *PAutoSCSIRam;
248	AssertCompileSize(AutoSCSIRam, 64);
249	#pragma pack()
250
251	#pragma pack(1)
252	/**
253	* The local Ram.
254	*/
255	typedef union HostAdapterLocalRam
256	{
257	/* Byte view. */
258	uint8_t u8View[256];
259	/* Structured view. */
260	struct
261	{
262	/** Offset 0 - 63 is for BIOS. */
263	uint8_t u8Bios[64];
264	/** Auto SCSI structure. */
265	AutoSCSIRam autoSCSIData;
266	} structured;
267	} HostAdapterLocalRam, *PHostAdapterLocalRam;
268	AssertCompileSize(HostAdapterLocalRam, 256);
269	#pragma pack()
270
271	/** Pointer to a task state structure. */
272	typedef struct BUSLOGICTASKSTATE *PBUSLOGICTASKSTATE;
273
274	/**
275	* Main BusLogic device state.
276	*
277	* @extends PCIDEVICE
278	* @implements PDMILEDPORTS
279	*/
280	typedef struct BUSLOGIC
281	{
282	/** The PCI device structure. */
283	PCIDEVICE dev;
284	/** Pointer to the device instance - HC ptr */
285	PPDMDEVINSR3 pDevInsR3;
286	/** Pointer to the device instance - R0 ptr */
287	PPDMDEVINSR0 pDevInsR0;
288	/** Pointer to the device instance - RC ptr. */
289	PPDMDEVINSRC pDevInsRC;
290
291	/** Whether R0 is enabled. */
292	bool fR0Enabled;
293	/** Whether RC is enabled. */
294	bool fGCEnabled;
295
296	/** Base address of the I/O ports. */
297	RTIOPORT IOPortBase;
298	/** Base address of the memory mapping. */
299	RTGCPHYS MMIOBase;
300	/** Status register - Readonly. */
301	volatile uint8_t regStatus;
302	/** Interrupt register - Readonly. */
303	volatile uint8_t regInterrupt;
304	/** Geometry register - Readonly. */
305	volatile uint8_t regGeometry;
306
307	/** Local RAM for the fetch hostadapter local RAM request.
308	* I don't know how big the buffer really is but the maximum
309	* seems to be 256 bytes because the offset and count field in the command request
310	* are only one byte big.
311	*/
312	HostAdapterLocalRam LocalRam;
313
314	/** Command code the guest issued. */
315	uint8_t uOperationCode;
316	/** Buffer for the command parameters the adapter is currently receiving from the guest.
317	* Size of the largest command which is possible.
318	*/
319	uint8_t aCommandBuffer[BUSLOGIC_COMMAND_SIZE_MAX]; /* Size of the biggest request. */
320	/** Current position in the command buffer. */
321	uint8_t iParameter;
322	/** Parameters left until the command is complete. */
323	uint8_t cbCommandParametersLeft;
324
325	/** Whether we are using the RAM or reply buffer. */
326	bool fUseLocalRam;
327	/** Buffer to store reply data from the controller to the guest. */
328	uint8_t aReplyBuffer[BUSLOGIC_REPLY_SIZE_MAX]; /* Size of the biggest reply. */
329	/** Position in the buffer we are reading next. */
330	uint8_t iReply;
331	/** Bytes left until the reply buffer is empty. */
332	uint8_t cbReplyParametersLeft;
333
334	/** Flag whether IRQs are enabled. */
335	bool fIRQEnabled;
336	/** Flag whether the ISA I/O port range is disabled
337	* to prevent the BIOs to access the device. */
338	bool fISAEnabled;
339
340	/** Number of mailboxes the guest set up. */
341	uint32_t cMailbox;
342
343	#if HC_ARCH_BITS == 64
344	uint32_t Alignment0;
345	#endif
346
347	/** Physical base address of the outgoing mailboxes. */
348	RTGCPHYS GCPhysAddrMailboxOutgoingBase;
349	/** Current outgoing mailbox position. */
350	uint32_t uMailboxOutgoingPositionCurrent;
351	/** Number of mailboxes ready. */
352	volatile uint32_t cMailboxesReady;
353	/** Whether a notification to R3 was send. */
354	volatile bool fNotificationSend;
355
356	#if HC_ARCH_BITS == 64
357	uint32_t Alignment1;
358	#endif
359
360	/** Physical base address of the incoming mailboxes. */
361	RTGCPHYS GCPhysAddrMailboxIncomingBase;
362	/** Current incoming mailbox position. */
363	uint32_t uMailboxIncomingPositionCurrent;
364
365	/** Whether strict round robin is enabled. */
366	bool fStrictRoundRobinMode;
367	/** Whether the extended LUN CCB format is enabled for 32 possible logical units. */
368	bool fExtendedLunCCBFormat;
369
370	/** Queue to send tasks to R3. - HC ptr */
371	R3PTRTYPE(PPDMQUEUE) pNotifierQueueR3;
372	/** Queue to send tasks to R3. - HC ptr */
373	R0PTRTYPE(PPDMQUEUE) pNotifierQueueR0;
374	/** Queue to send tasks to R3. - RC ptr */
375	RCPTRTYPE(PPDMQUEUE) pNotifierQueueRC;
376
377	uint32_t Alignment2;
378
379	/** Critical section protecting access to the interrupt status register. */
380	PDMCRITSECT CritSectIntr;
381
382	/** Cache for task states. */
383	R3PTRTYPE(RTMEMCACHE) hTaskCache;
384
385	/** Device state for BIOS access. */
386	VBOXSCSI VBoxSCSI;
387
388	/** BusLogic device states. */
389	BUSLOGICDEVICE aDeviceStates[BUSLOGIC_MAX_DEVICES];
390
391	/** The base interface.
392	* @todo use PDMDEVINS::IBase */
393	PDMIBASE IBase;
394	/** Status Port - Leds interface. */
395	PDMILEDPORTS ILeds;
396	/** Partner of ILeds. */
397	R3PTRTYPE(PPDMILEDCONNECTORS) pLedsConnector;
398
399	#if HC_ARCH_BITS == 64
400	uint32_t Alignment3;
401	#endif
402
403	/** Indicates that PDMDevHlpAsyncNotificationCompleted should be called when
404	* a port is entering the idle state. */
405	bool volatile fSignalIdle;
406	/** Flag whether we have tasks which need to be processed again. */
407	bool volatile fRedo;
408	/** List of tasks which can be redone. */
409	R3PTRTYPE(volatile PBUSLOGICTASKSTATE) pTasksRedoHead;
410
411	#ifdef LOG_ENABLED
412	# if HC_ARCH_BITS == 64
413	uint32_t Alignment4;
414	# endif
415
416	volatile uint32_t cInMailboxesReady;
417	#endif
418
419	} BUSLOGIC, *PBUSLOGIC;
420
421	/** Register offsets in the I/O port space. */
422	#define BUSLOGIC_REGISTER_CONTROL 0 /* Writeonly */
423	/** Fields for the control register. */
424	# define BUSLOGIC_REGISTER_CONTROL_SCSI_BUSRESET RT_BIT(4)
425	# define BUSLOGIC_REGISTER_CONTROL_INTERRUPT_RESET RT_BIT(5)
426	# define BUSLOGIC_REGISTER_CONTROL_SOFT_RESET RT_BIT(6)
427	# define BUSLOGIC_REGISTER_CONTROL_HARD_RESET RT_BIT(7)
428
429	#define BUSLOGIC_REGISTER_STATUS 0 /* Readonly */
430	/** Fields for the status register. */
431	# define BUSLOGIC_REGISTER_STATUS_COMMAND_INVALID RT_BIT(0)
432	# define BUSLOGIC_REGISTER_STATUS_DATA_IN_REGISTER_READY RT_BIT(2)
433	# define BUSLOGIC_REGISTER_STATUS_COMMAND_PARAMETER_REGISTER_BUSY RT_BIT(3)
434	# define BUSLOGIC_REGISTER_STATUS_HOST_ADAPTER_READY RT_BIT(4)
435	# define BUSLOGIC_REGISTER_STATUS_INITIALIZATION_REQUIRED RT_BIT(5)
436	# define BUSLOGIC_REGISTER_STATUS_DIAGNOSTIC_FAILURE RT_BIT(6)
437	# define BUSLOGIC_REGISTER_STATUS_DIAGNOSTIC_ACTIVE RT_BIT(7)
438
439	#define BUSLOGIC_REGISTER_COMMAND 1 /* Writeonly */
440	#define BUSLOGIC_REGISTER_DATAIN 1 /* Readonly */
441	#define BUSLOGIC_REGISTER_INTERRUPT 2 /* Readonly */
442	/** Fields for the interrupt register. */
443	# define BUSLOGIC_REGISTER_INTERRUPT_INCOMING_MAILBOX_LOADED RT_BIT(0)
444	# define BUSLOGIC_REGISTER_INTERRUPT_OUTCOMING_MAILBOX_AVAILABLE RT_BIT(1)
445	# define BUSLOGIC_REGISTER_INTERRUPT_COMMAND_COMPLETE RT_BIT(2)
446	# define BUSLOGIC_REGISTER_INTERRUPT_EXTERNAL_BUS_RESET RT_BIT(3)
447	# define BUSLOGIC_REGISTER_INTERRUPT_INTERRUPT_VALID RT_BIT(7)
448
449	#define BUSLOGIC_REGISTER_GEOMETRY 3 /* Readonly */
450	# define BUSLOGIC_REGISTER_GEOMETRY_EXTENTED_TRANSLATION_ENABLED RT_BIT(7)
451
452	/* Structure for the INQUIRE_PCI_HOST_ADAPTER_INFORMATION reply. */
453	#pragma pack(1)
454	typedef struct ReplyInquirePCIHostAdapterInformation
455	{
456	uint8_t IsaIOPort;
457	uint8_t IRQ;
458	unsigned char LowByteTerminated:1;
459	unsigned char HighByteTerminated:1;
460	unsigned char uReserved:2; /* Reserved. */
461	unsigned char JP1:1; /* Whatever that means. */
462	unsigned char JP2:1; /* Whatever that means. */
463	unsigned char JP3:1; /* Whatever that means. */
464	/** Whether the provided info is valid. */
465	unsigned char InformationIsValid: 1;
466	uint8_t uReserved2; /* Reserved. */
467	} ReplyInquirePCIHostAdapterInformation, *PReplyInquirePCIHostAdapterInformation;
468	AssertCompileSize(ReplyInquirePCIHostAdapterInformation, 4);
469	#pragma pack()
470
471	/* Structure for the INQUIRE_CONFIGURATION reply. */
472	#pragma pack(1)
473	typedef struct ReplyInquireConfiguration
474	{
475	unsigned char uReserved1: 5;
476	bool fDmaChannel5: 1;
477	bool fDmaChannel6: 1;
478	bool fDmaChannel7: 1;
479	bool fIrqChannel9: 1;
480	bool fIrqChannel10: 1;
481	bool fIrqChannel11: 1;
482	bool fIrqChannel12: 1;
483	unsigned char uReserved2: 1;
484	bool fIrqChannel14: 1;
485	bool fIrqChannel15: 1;
486	unsigned char uReserved3: 1;
487	unsigned char uHostAdapterId: 4;
488	unsigned char uReserved4: 4;
489	} ReplyInquireConfiguration, *PReplyInquireConfiguration;
490	AssertCompileSize(ReplyInquireConfiguration, 3);
491	#pragma pack()
492
493	/* Structure for the INQUIRE_SETUP_INFORMATION reply. */
494	#pragma pack(1)
495	typedef struct ReplyInquireSetupInformationSynchronousValue
496	{
497	unsigned char uOffset: 4;
498	unsigned char uTransferPeriod: 3;
499	bool fSynchronous: 1;
500	}ReplyInquireSetupInformationSynchronousValue, *PReplyInquireSetupInformationSynchronousValue;
501	AssertCompileSize(ReplyInquireSetupInformationSynchronousValue, 1);
502	#pragma pack()
503
504	#pragma pack(1)
505	typedef struct ReplyInquireSetupInformation
506	{
507	bool fSynchronousInitiationEnabled: 1;
508	bool fParityCheckingEnabled: 1;
509	unsigned char uReserved1: 6;
510	uint8_t uBusTransferRate;
511	uint8_t uPreemptTimeOnBus;
512	uint8_t uTimeOffBus;
513	uint8_t cMailbox;
514	uint8_t MailboxAddress[3];
515	ReplyInquireSetupInformationSynchronousValue SynchronousValuesId0To7[8];
516	uint8_t uDisconnectPermittedId0To7;
517	uint8_t uSignature;
518	uint8_t uCharacterD;
519	uint8_t uHostBusType;
520	uint8_t uWideTransferPermittedId0To7;
521	uint8_t uWideTransfersActiveId0To7;
522	ReplyInquireSetupInformationSynchronousValue SynchronousValuesId8To15[8];
523	uint8_t uDisconnectPermittedId8To15;
524	uint8_t uReserved2;
525	uint8_t uWideTransferPermittedId8To15;
526	uint8_t uWideTransfersActiveId8To15;
527	} ReplyInquireSetupInformation, *PReplyInquireSetupInformation;
528	AssertCompileSize(ReplyInquireSetupInformation, 34);
529	#pragma pack()
530
531	/* Structure for the INQUIRE_EXTENDED_SETUP_INFORMATION. */
532	#pragma pack(1)
533	typedef struct ReplyInquireExtendedSetupInformation
534	{
535	uint8_t uBusType;
536	uint8_t uBiosAddress;
537	uint16_t u16ScatterGatherLimit;
538	uint8_t cMailbox;
539	uint32_t uMailboxAddressBase;
540	unsigned char uReserved1: 2;
541	bool fFastEISA: 1;
542	unsigned char uReserved2: 3;
543	bool fLevelSensitiveInterrupt: 1;
544	unsigned char uReserved3: 1;
545	unsigned char aFirmwareRevision[3];
546	bool fHostWideSCSI: 1;
547	bool fHostDifferentialSCSI: 1;
548	bool fHostSupportsSCAM: 1;
549	bool fHostUltraSCSI: 1;
550	bool fHostSmartTermination: 1;
551	unsigned char uReserved4: 3;
552	} ReplyInquireExtendedSetupInformation, *PReplyInquireExtendedSetupInformation;
553	AssertCompileSize(ReplyInquireExtendedSetupInformation, 14);
554	#pragma pack()
555
556	/* Structure for the INITIALIZE EXTENDED MAILBOX request. */
557	#pragma pack(1)
558	typedef struct RequestInitializeExtendedMailbox
559	{
560	/** Number of mailboxes in guest memory. */
561	uint8_t cMailbox;
562	/** Physical address of the first mailbox. */
563	uint32_t uMailboxBaseAddress;
564	} RequestInitializeExtendedMailbox, *PRequestInitializeExtendedMailbox;
565	AssertCompileSize(RequestInitializeExtendedMailbox, 5);
566	#pragma pack()
567
568	/*
569	* Structure of a mailbox in guest memory.
570	* The incoming and outgoing mailbox have the same size
571	* but the incoming one has some more fields defined which
572	* are marked as reserved in the outgoing one.
573	* The last field is also different from the type.
574	* For outgoing mailboxes it is the action and
575	* for incoming ones the completion status code for the task.
576	* We use one structure for both types.
577	*/
578	#pragma pack(1)
579	typedef struct Mailbox
580	{
581	/** Physical address of the CCB structure in the guest memory. */
582	uint32_t u32PhysAddrCCB;
583	/** Type specific data. */
584	union
585	{
586	/** For outgoing mailboxes. */
587	struct
588	{
589	/** Reserved */
590	uint8_t uReserved[3];
591	/** Action code. */
592	uint8_t uActionCode;
593	} out;
594	/** For incoming mailboxes. */
595	struct
596	{
597	/** The host adapter status after finishing the request. */
598	uint8_t uHostAdapterStatus;
599	/** The status of the device which executed the request after executing it. */
600	uint8_t uTargetDeviceStatus;
601	/** Reserved. */
602	uint8_t uReserved;
603	/** The completion status code of the request. */
604	uint8_t uCompletionCode;
605	} in;
606	} u;
607	} Mailbox, *PMailbox;
608	AssertCompileSize(Mailbox, 8);
609	#pragma pack()
610
611	/*
612	* Action codes for outgoing mailboxes.
613	*/
614	enum BUSLOGIC_MAILBOX_OUTGOING_ACTION
615	{
616	BUSLOGIC_MAILBOX_OUTGOING_ACTION_FREE = 0x00,
617	BUSLOGIC_MAILBOX_OUTGOING_ACTION_START_COMMAND = 0x01,
618	BUSLOGIC_MAILBOX_OUTGOING_ACTION_ABORT_COMMAND = 0x02
619	};
620
621	/*
622	* Completion codes for incoming mailboxes.
623	*/
624	enum BUSLOGIC_MAILBOX_INCOMING_COMPLETION
625	{
626	BUSLOGIC_MAILBOX_INCOMING_COMPLETION_FREE = 0x00,
627	BUSLOGIC_MAILBOX_INCOMING_COMPLETION_WITHOUT_ERROR = 0x01,
628	BUSLOGIC_MAILBOX_INCOMING_COMPLETION_ABORTED = 0x02,
629	BUSLOGIC_MAILBOX_INCOMING_COMPLETION_ABORTED_NOT_FOUND = 0x03,
630	BUSLOGIC_MAILBOX_INCOMING_COMPLETION_WITH_ERROR = 0x04,
631	BUSLOGIC_MAILBOX_INCOMING_COMPLETION_INVALID_CCB = 0x05
632	};
633
634	/*
635	* Host adapter status for incoming mailboxes.
636	*/
637	enum BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS
638	{
639	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_CMD_COMPLETED = 0x00,
640	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_LINKED_CMD_COMPLETED = 0x0a,
641	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_LINKED_CMD_COMPLETED_WITH_FLAG = 0x0b,
642	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_DATA_UNDERUN = 0x0c,
643	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_SCSI_SELECTION_TIMEOUT = 0x11,
644	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_DATA_OVERRUN = 0x12,
645	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_UNEXPECTED_BUS_FREE = 0x13,
646	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_INVALID_BUS_PHASE_REQUESTED = 0x14,
647	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_INVALID_OUTGOING_MAILBOX_ACTION_CODE = 0x15,
648	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_INVALID_COMMAND_OPERATION_CODE = 0x16,
649	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_LINKED_CCB_HAS_INVALID_LUN = 0x17,
650	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_INVALID_COMMAND_PARAMETER = 0x1a,
651	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_AUTO_REQUEST_SENSE_FAILED = 0x1b,
652	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_TAGGED_QUEUING_MESSAGE_REJECTED = 0x1c,
653	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_UNSUPPORTED_MESSAGE_RECEIVED = 0x1d,
654	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_HOST_ADAPTER_HARDWARE_FAILED = 0x20,
655	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_TARGET_FAILED_RESPONSE_TO_ATN = 0x21,
656	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_HOST_ADAPTER_ASSERTED_RST = 0x22,
657	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_OTHER_DEVICE_ASSERTED_RST = 0x23,
658	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_TARGET_DEVICE_RECONNECTED_IMPROPERLY = 0x24,
659	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_HOST_ADAPTER_ASSERTED_BUS_DEVICE_RESET = 0x25,
660	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_ABORT_QUEUE_GENERATED = 0x26,
661	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_HOST_ADAPTER_SOFTWARE_ERROR = 0x27,
662	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_HOST_ADAPTER_HARDWARE_TIMEOUT_ERROR = 0x30,
663	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_SCSI_PARITY_ERROR_DETECTED = 0x34
664	};
665
666	/*
667	* Device status codes for incoming mailboxes.
668	*/
669	enum BUSLOGIC_MAILBOX_INCOMING_DEVICE_STATUS
670	{
671	BUSLOGIC_MAILBOX_INCOMING_DEVICE_STATUS_OPERATION_GOOD = 0x00,
672	BUSLOGIC_MAILBOX_INCOMING_DEVICE_STATUS_CHECK_CONDITION = 0x02,
673	BUSLOGIC_MAILBOX_INCOMING_DEVICE_STATUS_DEVICE_BUSY = 0x08
674	};
675
676	/*
677	* Opcode types for CCB.
678	*/
679	enum BUSLOGIC_CCB_OPCODE
680	{
681	BUSLOGIC_CCB_OPCODE_INITIATOR_CCB = 0x00,
682	BUSLOGIC_CCB_OPCODE_TARGET_CCB = 0x01,
683	BUSLOGIC_CCB_OPCODE_INITIATOR_CCB_SCATTER_GATHER = 0x02,
684	BUSLOGIC_CCB_OPCODE_INITIATOR_CCB_RESIDUAL_DATA_LENGTH = 0x03,
685	BUSLOGIC_CCB_OPCODE_INITIATOR_CCB_RESIDUAL_SCATTER_GATHER = 0x04,
686	BUSLOGIC_CCB_OPCODE_BUS_DEVICE_RESET = 0x81
687	};
688
689	/*
690	* Data transfer direction.
691	*/
692	enum BUSLOGIC_CCB_DIRECTION
693	{
694	BUSLOGIC_CCB_DIRECTION_UNKNOWN = 0x00,
695	BUSLOGIC_CCB_DIRECTION_IN = 0x01,
696	BUSLOGIC_CCB_DIRECTION_OUT = 0x02,
697	BUSLOGIC_CCB_DIRECTION_NO_DATA = 0x03
698	};
699
700	/*
701	* The command control block for a SCSI request.
702	*/
703	#pragma pack(1)
704	typedef struct CommandControlBlock
705	{
706	/** Opcode. */
707	uint8_t uOpcode;
708	/** Reserved */
709	unsigned char uReserved1: 3;
710	/** Data direction for the request. */
711	unsigned char uDataDirection: 2;
712	/** Whether the request is tag queued. */
713	bool fTagQueued: 1;
714	/** Queue tag mode. */
715	unsigned char uQueueTag: 2;
716	/** Length of the SCSI CDB. */
717	uint8_t cbCDB;
718	/** Sense data length. */
719	uint8_t cbSenseData;
720	/** Data length. */
721	uint32_t cbData;
722	/** Data pointer.
723	* This points to the data region or a scatter gather list based on the opcode.
724	*/
725	uint32_t u32PhysAddrData;
726	/** Reserved. */
727	uint8_t uReserved2[2];
728	/** Host adapter status. */
729	uint8_t uHostAdapterStatus;
730	/** Device adapter status. */
731	uint8_t uDeviceStatus;
732	/** The device the request is send to. */
733	uint8_t uTargetId;
734	/*The LUN in the device. /
735	unsigned char uLogicalUnit: 5;
736	/** Legacy tag. */
737	bool fLegacyTagEnable: 1;
738	/** Legacy queue tag. */
739	unsigned char uLegacyQueueTag: 2;
740	/** The SCSI CDB. */
741	uint8_t aCDB[12]; /* A CDB can be 12 bytes long. */
742	/** Reserved. */
743	uint8_t uReserved3[6];
744	/** Sense data pointer. */
745	uint32_t u32PhysAddrSenseData;
746	} CommandControlBlock, *PCommandControlBlock;
747	AssertCompileSize(CommandControlBlock, 40);
748	#pragma pack()
749
750	#pragma pack(1)
751	typedef struct ScatterGatherEntry
752	{
753	uint32_t cbSegment;
754	uint32_t u32PhysAddrSegmentBase;
755	} ScatterGatherEntry, *PScatterGatherEntry;
756	AssertCompileSize(ScatterGatherEntry, 8);
757	#pragma pack()
758
759	/*
760	* Task state for a CCB request.
761	*/
762	typedef struct BUSLOGICTASKSTATE
763	{
764	/** Next in the redo list. */
765	PBUSLOGICTASKSTATE pRedoNext;
766	/** Device this task is assigned to. */
767	R3PTRTYPE(PBUSLOGICDEVICE) pTargetDeviceR3;
768	/** The command control block from the guest. */
769	CommandControlBlock CommandControlBlockGuest;
770	/** Mailbox read from guest memory. */
771	Mailbox MailboxGuest;
772	/** The SCSI request we pass to the underlying SCSI engine. */
773	PDMSCSIREQUEST PDMScsiRequest;
774	/** Data buffer segment */
775	RTSGSEG DataSeg;
776	/** Pointer to the R3 sense buffer. */
777	uint8_t *pbSenseBuffer;
778	/** Flag whether this is a request from the BIOS. */
779	bool fBIOS;
780	} BUSLOGICTASKSTATE;
781
782	#ifndef VBOX_DEVICE_STRUCT_TESTCASE
783
784	#define PDMIBASE_2_PBUSLOGICDEVICE(pInterface) ( (PBUSLOGICDEVICE)((uintptr_t)(pInterface) - RT_OFFSETOF(BUSLOGICDEVICE, IBase)) )
785	#define PDMISCSIPORT_2_PBUSLOGICDEVICE(pInterface) ( (PBUSLOGICDEVICE)((uintptr_t)(pInterface) - RT_OFFSETOF(BUSLOGICDEVICE, ISCSIPort)) )
786	#define PDMILEDPORTS_2_PBUSLOGICDEVICE(pInterface) ( (PBUSLOGICDEVICE)((uintptr_t)(pInterface) - RT_OFFSETOF(BUSLOGICDEVICE, ILed)) )
787	#define PDMIBASE_2_PBUSLOGIC(pInterface) ( (PBUSLOGIC)((uintptr_t)(pInterface) - RT_OFFSETOF(BUSLOGIC, IBase)) )
788	#define PDMILEDPORTS_2_PBUSLOGIC(pInterface) ( (PBUSLOGIC)((uintptr_t)(pInterface) - RT_OFFSETOF(BUSLOGIC, ILeds)) )
789
790	/**
791	* Deasserts the interrupt line of the BusLogic adapter.
792	*
793	* @returns nothing
794	* @param pBuslogic Pointer to the BusLogic device instance.
795	*/
796	static void buslogicClearInterrupt(PBUSLOGIC pBusLogic)
797	{
798	LogFlowFunc(("pBusLogic=%#p\n", pBusLogic));
799	pBusLogic->regInterrupt = 0;
800	PDMDevHlpPCISetIrq(pBusLogic->CTX_SUFF(pDevIns), 0, 0);
801	}
802
803	/**
804	* Assert IRQ line of the BusLogic adapter.
805	*
806	* @returns nothing.
807	* @param pBusLogic Pointer to the BusLogic device instance.
808	* @param fSuppressIrq Flag to suppress IRQ generation regardless of fIRQEnabled
809	*/
810	static void buslogicSetInterrupt(PBUSLOGIC pBusLogic, bool fSuppressIrq)
811	{
812	LogFlowFunc(("pBusLogic=%#p\n", pBusLogic));
813	pBusLogic->regInterrupt \|= BUSLOGIC_REGISTER_INTERRUPT_INTERRUPT_VALID;
814	if (pBusLogic->fIRQEnabled && !fSuppressIrq)
815	PDMDevHlpPCISetIrq(pBusLogic->CTX_SUFF(pDevIns), 0, 1);
816	}
817
818	#if defined(IN_RING3)
819
820	/**
821	* Advances the mailbox pointer to the next slot.
822	*/
823	DECLINLINE(void) buslogicOutgoingMailboxAdvance(PBUSLOGIC pBusLogic)
824	{
825	pBusLogic->uMailboxOutgoingPositionCurrent = (pBusLogic->uMailboxOutgoingPositionCurrent + 1) % pBusLogic->cMailbox;
826	}
827
828	/**
829	* Returns the physical address of the next outgoing mailbox to process.
830	*/
831	DECLINLINE(RTGCPHYS) buslogicOutgoingMailboxGetGCPhys(PBUSLOGIC pBusLogic)
832	{
833	return pBusLogic->GCPhysAddrMailboxOutgoingBase + (pBusLogic->uMailboxOutgoingPositionCurrent * sizeof(Mailbox));
834	}
835
836	/**
837	* Initialize local RAM of host adapter with default values.
838	*
839	* @returns nothing.
840	* @param pBusLogic.
841	*/
842	static void buslogicInitializeLocalRam(PBUSLOGIC pBusLogic)
843	{
844	/*
845	* These values are mostly from what I think is right
846	* looking at the dmesg output from a Linux guest inside
847	* a VMware server VM.
848	*
849	* So they don't have to be right :)
850	*/
851	memset(pBusLogic->LocalRam.u8View, 0, sizeof(HostAdapterLocalRam));
852	pBusLogic->LocalRam.structured.autoSCSIData.fLevelSensitiveInterrupt = true;
853	pBusLogic->LocalRam.structured.autoSCSIData.fParityCheckingEnabled = true;
854	pBusLogic->LocalRam.structured.autoSCSIData.fExtendedTranslation = true; /* Same as in geometry register. */
855	pBusLogic->LocalRam.structured.autoSCSIData.u16DeviceEnabledMask = ~0; /* All enabled. Maybe mask out non present devices? */
856	pBusLogic->LocalRam.structured.autoSCSIData.u16WidePermittedMask = ~0;
857	pBusLogic->LocalRam.structured.autoSCSIData.u16FastPermittedMask = ~0;
858	pBusLogic->LocalRam.structured.autoSCSIData.u16SynchronousPermittedMask = ~0;
859	pBusLogic->LocalRam.structured.autoSCSIData.u16DisconnectPermittedMask = ~0;
860	pBusLogic->LocalRam.structured.autoSCSIData.fStrictRoundRobinMode = pBusLogic->fStrictRoundRobinMode;
861	pBusLogic->LocalRam.structured.autoSCSIData.u16UltraPermittedMask = ~0;
862	/* @todo calculate checksum? */
863	}
864
865	/**
866	* Do a hardware reset of the buslogic adapter.
867	*
868	* @returns VBox status code.
869	* @param pBusLogic Pointer to the BusLogic device instance.
870	*/
871	static int buslogicHwReset(PBUSLOGIC pBusLogic)
872	{
873	LogFlowFunc(("pBusLogic=%#p\n", pBusLogic));
874
875	/* Reset registers to default value. */
876	pBusLogic->regStatus = BUSLOGIC_REGISTER_STATUS_HOST_ADAPTER_READY \| BUSLOGIC_REGISTER_STATUS_INITIALIZATION_REQUIRED;
877	pBusLogic->regInterrupt = 0;
878	pBusLogic->regGeometry = BUSLOGIC_REGISTER_GEOMETRY_EXTENTED_TRANSLATION_ENABLED;
879	pBusLogic->uOperationCode = 0xff; /* No command executing. */
880	pBusLogic->iParameter = 0;
881	pBusLogic->cbCommandParametersLeft = 0;
882	pBusLogic->fIRQEnabled = true;
883	pBusLogic->fISAEnabled = true;
884	pBusLogic->uMailboxOutgoingPositionCurrent = 0;
885	pBusLogic->uMailboxIncomingPositionCurrent = 0;
886
887	buslogicInitializeLocalRam(pBusLogic);
888	vboxscsiInitialize(&pBusLogic->VBoxSCSI);
889
890	return VINF_SUCCESS;
891	}
892	#endif
893
894	/**
895	* Resets the command state machine for the next command and notifies the guest.
896	*
897	* @returns nothing.
898	* @param pBusLogic Pointer to the BusLogic device instance
899	* @param fSuppressIrq Flag to suppress IRQ generation regardless of current state
900	*/
901	static void buslogicCommandComplete(PBUSLOGIC pBusLogic, bool fSuppressIrq)
902	{
903	LogFlowFunc(("pBusLogic=%#p\n", pBusLogic));
904
905	pBusLogic->fUseLocalRam = false;
906	pBusLogic->regStatus \|= BUSLOGIC_REGISTER_STATUS_HOST_ADAPTER_READY;
907	pBusLogic->iReply = 0;
908
909	/* Modify I/O address does not generate an interrupt. */
910	if (pBusLogic->uOperationCode != BUSLOGICCOMMAND_EXECUTE_MAILBOX_COMMAND)
911	{
912	/* Notify that the command is complete. */
913	pBusLogic->regStatus &= ~BUSLOGIC_REGISTER_STATUS_DATA_IN_REGISTER_READY;
914	pBusLogic->regInterrupt \|= BUSLOGIC_REGISTER_INTERRUPT_COMMAND_COMPLETE;
915
916	buslogicSetInterrupt(pBusLogic, fSuppressIrq);
917	}
918
919	pBusLogic->uOperationCode = 0xff;
920	pBusLogic->iParameter = 0;
921	}
922
923	#if defined(IN_RING3)
924	/**
925	* Initiates a hard reset which was issued from the guest.
926	*
927	* @returns nothing
928	* @param pBusLogic Pointer to the BusLogic device instance.
929	*/
930	static void buslogicIntiateHardReset(PBUSLOGIC pBusLogic)
931	{
932	LogFlowFunc(("pBusLogic=%#p\n", pBusLogic));
933
934	buslogicHwReset(pBusLogic);
935
936	/* We set the diagnostic active in the status register. */
937	pBusLogic->regStatus \|= BUSLOGIC_REGISTER_STATUS_DIAGNOSTIC_ACTIVE;
938	}
939
940	/**
941	* Send a mailbox with set status codes to the guest.
942	*
943	* @returns nothing.
944	* @param pBusLogic Pointer to the BusLogic device instance.
945	* @param pTaskState Pointer to the task state with the mailbox to send.
946	* @param uHostAdapterStatus The host adapter status code to set.
947	* @param uDeviceStatus The target device status to set.
948	* @param uMailboxCompletionCode Completion status code to set in the mailbox.
949	*/
950	static void buslogicSendIncomingMailbox(PBUSLOGIC pBusLogic, PBUSLOGICTASKSTATE pTaskState,
951	uint8_t uHostAdapterStatus, uint8_t uDeviceStatus,
952	uint8_t uMailboxCompletionCode)
953	{
954	pTaskState->MailboxGuest.u.in.uHostAdapterStatus = uHostAdapterStatus;
955	pTaskState->MailboxGuest.u.in.uTargetDeviceStatus = uDeviceStatus;
956	pTaskState->MailboxGuest.u.in.uCompletionCode = uMailboxCompletionCode;
957
958	int rc = PDMCritSectEnter(&pBusLogic->CritSectIntr, VINF_SUCCESS);
959	AssertRC(rc);
960	RTGCPHYS GCPhysAddrMailboxIncoming = pBusLogic->GCPhysAddrMailboxIncomingBase + (pBusLogic->uMailboxIncomingPositionCurrent * sizeof(Mailbox));
961	RTGCPHYS GCPhysAddrCCB = (RTGCPHYS)pTaskState->MailboxGuest.u32PhysAddrCCB;
962
963	LogFlowFunc(("Completing CCB %RGp\n", GCPhysAddrCCB));
964
965	/* Update CCB. */
966	pTaskState->CommandControlBlockGuest.uHostAdapterStatus = uHostAdapterStatus;
967	pTaskState->CommandControlBlockGuest.uDeviceStatus = uDeviceStatus;
968	/* @todo: this is wrong - writing too much! */
969	PDMDevHlpPhysWrite(pBusLogic->CTX_SUFF(pDevIns), GCPhysAddrCCB, &pTaskState->CommandControlBlockGuest, sizeof(CommandControlBlock));
970
971	#ifdef RT_STRICT
972	Mailbox Tmp;
973	PDMDevHlpPhysRead(pBusLogic->CTX_SUFF(pDevIns), GCPhysAddrMailboxIncoming, &Tmp, sizeof(Mailbox));
974	Assert(Tmp.u.in.uCompletionCode == BUSLOGIC_MAILBOX_INCOMING_COMPLETION_FREE);
975	#endif
976
977	/* Update mailbox. */
978	PDMDevHlpPhysWrite(pBusLogic->CTX_SUFF(pDevIns), GCPhysAddrMailboxIncoming, &pTaskState->MailboxGuest, sizeof(Mailbox));
979
980	/* Advance to next mailbox position. */
981	pBusLogic->uMailboxIncomingPositionCurrent++;
982	if (pBusLogic->uMailboxIncomingPositionCurrent >= pBusLogic->cMailbox)
983	pBusLogic->uMailboxIncomingPositionCurrent = 0;
984
985	#ifdef LOG_ENABLED
986	ASMAtomicIncU32(&pBusLogic->cInMailboxesReady);
987	#endif
988
989	pBusLogic->regInterrupt \|= BUSLOGIC_REGISTER_INTERRUPT_INCOMING_MAILBOX_LOADED;
990	buslogicSetInterrupt(pBusLogic, false);
991
992	PDMCritSectLeave(&pBusLogic->CritSectIntr);
993	}
994
995	#if defined(DEBUG)
996	/**
997	* Dumps the content of a mailbox for debugging purposes.
998	*
999	* @return nothing
1000	* @param pMailbox The mailbox to dump.
1001	* @param fOutgoing true if dumping the outgoing state.
1002	* false if dumping the incoming state.
1003	*/
1004	static void buslogicDumpMailboxInfo(PMailbox pMailbox, bool fOutgoing)
1005	{
1006	Log(("%s: Dump for %s mailbox:\n", __FUNCTION__, fOutgoing ? "outgoing" : "incoming"));
1007	Log(("%s: u32PhysAddrCCB=%#x\n", __FUNCTION__, pMailbox->u32PhysAddrCCB));
1008	if (fOutgoing)
1009	{
1010	Log(("%s: uActionCode=%u\n", __FUNCTION__, pMailbox->u.out.uActionCode));
1011	}
1012	else
1013	{
1014	Log(("%s: uHostAdapterStatus=%u\n", __FUNCTION__, pMailbox->u.in.uHostAdapterStatus));
1015	Log(("%s: uTargetDeviceStatus=%u\n", __FUNCTION__, pMailbox->u.in.uTargetDeviceStatus));
1016	Log(("%s: uCompletionCode=%u\n", __FUNCTION__, pMailbox->u.in.uCompletionCode));
1017	}
1018	}
1019
1020	/**
1021	* Dumps the content of a command control block for debugging purposes.
1022	*
1023	* @returns nothing.
1024	* @param pCCB Pointer to the command control block to dump.
1025	*/
1026	static void buslogicDumpCCBInfo(PCommandControlBlock pCCB)
1027	{
1028	Log(("%s: Dump for Command Control Block:\n", __FUNCTION__));
1029	Log(("%s: uOpCode=%#x\n", __FUNCTION__, pCCB->uOpcode));
1030	Log(("%s: uDataDirection=%u\n", __FUNCTION__, pCCB->uDataDirection));
1031	Log(("%s: fTagQueued=%d\n", __FUNCTION__, pCCB->fTagQueued));
1032	Log(("%s: uQueueTag=%u\n", __FUNCTION__, pCCB->uQueueTag));
1033	Log(("%s: cbCDB=%u\n", __FUNCTION__, pCCB->cbCDB));
1034	Log(("%s: cbSenseData=%u\n", __FUNCTION__, pCCB->cbSenseData));
1035	Log(("%s: cbData=%u\n", __FUNCTION__, pCCB->cbData));
1036	Log(("%s: u32PhysAddrData=%#x\n", __FUNCTION__, pCCB->u32PhysAddrData));
1037	Log(("%s: uHostAdapterStatus=%u\n", __FUNCTION__, pCCB->uHostAdapterStatus));
1038	Log(("%s: uDeviceStatus=%u\n", __FUNCTION__, pCCB->uDeviceStatus));
1039	Log(("%s: uTargetId=%u\n", __FUNCTION__, pCCB->uTargetId));
1040	Log(("%s: uLogicalUnit=%u\n", __FUNCTION__, pCCB->uLogicalUnit));
1041	Log(("%s: fLegacyTagEnable=%u\n", __FUNCTION__, pCCB->fLegacyTagEnable));
1042	Log(("%s: uLegacyQueueTag=%u\n", __FUNCTION__, pCCB->uLegacyQueueTag));
1043	Log(("%s: uCDB[0]=%#x\n", __FUNCTION__, pCCB->aCDB[0]));
1044	for (int i = 1; i < pCCB->cbCDB; i++)
1045	Log(("%s: uCDB[%d]=%u\n", __FUNCTION__, i, pCCB->aCDB[i]));
1046	Log(("%s: u32PhysAddrSenseData=%#x\n", __FUNCTION__, pCCB->u32PhysAddrSenseData));
1047	}
1048	#endif
1049
1050	/**
1051	* Allocate data buffer.
1052	*
1053	* @returns VBox status code.
1054	* @param pTaskState Pointer to the task state.
1055	*/
1056	static int buslogicDataBufferAlloc(PBUSLOGICTASKSTATE pTaskState)
1057	{
1058	PPDMDEVINS pDevIns = pTaskState->CTX_SUFF(pTargetDevice)->CTX_SUFF(pBusLogic)->CTX_SUFF(pDevIns);
1059
1060	if ( (pTaskState->CommandControlBlockGuest.uDataDirection != BUSLOGIC_CCB_DIRECTION_NO_DATA)
1061	&& (pTaskState->CommandControlBlockGuest.cbData > 0))
1062	{
1063	/*
1064	* @todo: Check following assumption and what residual means.
1065	*
1066	* The BusLogic adapter can handle two different data buffer formats.
1067	* The first one is that the data pointer entry in the CCB points to
1068	* the buffer directly. In second mode the data pointer points to a
1069	* scatter gather list which describes the buffer.
1070	*/
1071	if ( (pTaskState->CommandControlBlockGuest.uOpcode == BUSLOGIC_CCB_OPCODE_INITIATOR_CCB_SCATTER_GATHER)
1072	\|\| (pTaskState->CommandControlBlockGuest.uOpcode == BUSLOGIC_CCB_OPCODE_INITIATOR_CCB_RESIDUAL_SCATTER_GATHER))
1073	{
1074	uint32_t cScatterGatherGCRead;
1075	uint32_t iScatterGatherEntry;
1076	ScatterGatherEntry aScatterGatherReadGC[32]; /* Number of scatter gather list entries read from guest memory. */
1077	uint32_t cScatterGatherGCLeft = pTaskState->CommandControlBlockGuest.cbData / sizeof(ScatterGatherEntry);
1078	RTGCPHYS GCPhysAddrScatterGatherCurrent = (RTGCPHYS)pTaskState->CommandControlBlockGuest.u32PhysAddrData;
1079	size_t cbDataToTransfer = 0;
1080
1081	/* Count number of bytes to transfer. */
1082	do
1083	{
1084	cScatterGatherGCRead = (cScatterGatherGCLeft < RT_ELEMENTS(aScatterGatherReadGC))
1085	? cScatterGatherGCLeft
1086	: RT_ELEMENTS(aScatterGatherReadGC);
1087	cScatterGatherGCLeft -= cScatterGatherGCRead;
1088
1089	/* Read the SG entries. */
1090	PDMDevHlpPhysRead(pDevIns, GCPhysAddrScatterGatherCurrent, &aScatterGatherReadGC[0],
1091	cScatterGatherGCRead * sizeof(ScatterGatherEntry));
1092
1093	for (iScatterGatherEntry = 0; iScatterGatherEntry < cScatterGatherGCRead; iScatterGatherEntry++)
1094	{
1095	RTGCPHYS GCPhysAddrDataBase;
1096
1097	Log(("%s: iScatterGatherEntry=%u\n", __FUNCTION__, iScatterGatherEntry));
1098
1099	GCPhysAddrDataBase = (RTGCPHYS)aScatterGatherReadGC[iScatterGatherEntry].u32PhysAddrSegmentBase;
1100	cbDataToTransfer += aScatterGatherReadGC[iScatterGatherEntry].cbSegment;
1101
1102	Log(("%s: GCPhysAddrDataBase=%RGp cbDataToTransfer=%u\n",
1103	__FUNCTION__, GCPhysAddrDataBase,
1104	aScatterGatherReadGC[iScatterGatherEntry].cbSegment));
1105	}
1106
1107	/* Set address to the next entries to read. */
1108	GCPhysAddrScatterGatherCurrent += cScatterGatherGCRead * sizeof(ScatterGatherEntry);
1109	} while (cScatterGatherGCLeft > 0);
1110
1111	Log(("%s: cbDataToTransfer=%d\n", __FUNCTION__, cbDataToTransfer));
1112
1113	/* Allocate buffer */
1114	pTaskState->DataSeg.cbSeg = cbDataToTransfer;
1115	pTaskState->DataSeg.pvSeg = RTMemAlloc(pTaskState->DataSeg.cbSeg);
1116	if (!pTaskState->DataSeg.pvSeg)
1117	return VERR_NO_MEMORY;
1118
1119	/* Copy the data if needed */
1120	if (pTaskState->CommandControlBlockGuest.uDataDirection == BUSLOGIC_CCB_DIRECTION_OUT)
1121	{
1122	cScatterGatherGCLeft = pTaskState->CommandControlBlockGuest.cbData / sizeof(ScatterGatherEntry);
1123	GCPhysAddrScatterGatherCurrent = (RTGCPHYS)pTaskState->CommandControlBlockGuest.u32PhysAddrData;
1124	uint8_t pbData = (uint8_t )pTaskState->DataSeg.pvSeg;
1125
1126	do
1127	{
1128	cScatterGatherGCRead = (cScatterGatherGCLeft < RT_ELEMENTS(aScatterGatherReadGC))
1129	? cScatterGatherGCLeft
1130	: RT_ELEMENTS(aScatterGatherReadGC);
1131	cScatterGatherGCLeft -= cScatterGatherGCRead;
1132
1133	/* Read the SG entries. */
1134	PDMDevHlpPhysRead(pDevIns, GCPhysAddrScatterGatherCurrent, &aScatterGatherReadGC[0],
1135	cScatterGatherGCRead * sizeof(ScatterGatherEntry));
1136
1137	for (iScatterGatherEntry = 0; iScatterGatherEntry < cScatterGatherGCRead; iScatterGatherEntry++)
1138	{
1139	RTGCPHYS GCPhysAddrDataBase;
1140
1141	Log(("%s: iScatterGatherEntry=%u\n", __FUNCTION__, iScatterGatherEntry));
1142
1143	GCPhysAddrDataBase = (RTGCPHYS)aScatterGatherReadGC[iScatterGatherEntry].u32PhysAddrSegmentBase;
1144	cbDataToTransfer = aScatterGatherReadGC[iScatterGatherEntry].cbSegment;
1145
1146	Log(("%s: GCPhysAddrDataBase=%RGp cbDataToTransfer=%u\n", __FUNCTION__, GCPhysAddrDataBase, cbDataToTransfer));
1147
1148	PDMDevHlpPhysRead(pDevIns, GCPhysAddrDataBase, pbData, cbDataToTransfer);
1149	pbData += cbDataToTransfer;
1150	}
1151
1152	/* Set address to the next entries to read. */
1153	GCPhysAddrScatterGatherCurrent += cScatterGatherGCRead * sizeof(ScatterGatherEntry);
1154	} while (cScatterGatherGCLeft > 0);
1155	}
1156
1157	}
1158	else if ( pTaskState->CommandControlBlockGuest.uOpcode == BUSLOGIC_CCB_OPCODE_INITIATOR_CCB
1159	\|\| pTaskState->CommandControlBlockGuest.uOpcode == BUSLOGIC_CCB_OPCODE_INITIATOR_CCB_RESIDUAL_DATA_LENGTH)
1160	{
1161	/* The buffer is not scattered. */
1162	RTGCPHYS GCPhysAddrDataBase = (RTGCPHYS)pTaskState->CommandControlBlockGuest.u32PhysAddrData;
1163
1164	AssertMsg(GCPhysAddrDataBase != 0, ("Physical address is 0\n"));
1165
1166	pTaskState->DataSeg.cbSeg = pTaskState->CommandControlBlockGuest.cbData;
1167	pTaskState->DataSeg.pvSeg = RTMemAlloc(pTaskState->DataSeg.cbSeg);
1168	if (!pTaskState->DataSeg.pvSeg)
1169	return VERR_NO_MEMORY;
1170
1171	Log(("Non scattered buffer:\n"));
1172	Log(("u32PhysAddrData=%#x\n", pTaskState->CommandControlBlockGuest.u32PhysAddrData));
1173	Log(("cbData=%u\n", pTaskState->CommandControlBlockGuest.cbData));
1174	Log(("GCPhysAddrDataBase=0x%RGp\n", GCPhysAddrDataBase));
1175
1176	/* Copy the data into the buffer. */
1177	PDMDevHlpPhysRead(pDevIns, GCPhysAddrDataBase, pTaskState->DataSeg.pvSeg, pTaskState->DataSeg.cbSeg);
1178	}
1179	}
1180
1181	return VINF_SUCCESS;
1182	}
1183
1184	/**
1185	* Free allocated resources used for the scatter gather list.
1186	*
1187	* @returns nothing.
1188	* @param pTaskState Pointer to the task state.
1189	*/
1190	static void buslogicDataBufferFree(PBUSLOGICTASKSTATE pTaskState)
1191	{
1192	PPDMDEVINS pDevIns = pTaskState->CTX_SUFF(pTargetDevice)->CTX_SUFF(pBusLogic)->CTX_SUFF(pDevIns);
1193
1194	if ( (pTaskState->CommandControlBlockGuest.cbData > 0)
1195	&& ( (pTaskState->CommandControlBlockGuest.uDataDirection == BUSLOGIC_CCB_DIRECTION_IN)
1196	\|\| (pTaskState->CommandControlBlockGuest.uDataDirection == BUSLOGIC_CCB_DIRECTION_UNKNOWN)))
1197	{
1198	if ( (pTaskState->CommandControlBlockGuest.uOpcode == BUSLOGIC_CCB_OPCODE_INITIATOR_CCB_SCATTER_GATHER)
1199	\|\| (pTaskState->CommandControlBlockGuest.uOpcode == BUSLOGIC_CCB_OPCODE_INITIATOR_CCB_RESIDUAL_SCATTER_GATHER))
1200	{
1201	uint32_t cScatterGatherGCRead;
1202	uint32_t iScatterGatherEntry;
1203	ScatterGatherEntry aScatterGatherReadGC[32]; /* Number of scatter gather list entries read from guest memory. */
1204	uint32_t cScatterGatherGCLeft = pTaskState->CommandControlBlockGuest.cbData / sizeof(ScatterGatherEntry);
1205	RTGCPHYS GCPhysAddrScatterGatherCurrent = (RTGCPHYS)pTaskState->CommandControlBlockGuest.u32PhysAddrData;
1206	uint8_t pbData = (uint8_t )pTaskState->DataSeg.pvSeg;
1207
1208	do
1209	{
1210	cScatterGatherGCRead = (cScatterGatherGCLeft < RT_ELEMENTS(aScatterGatherReadGC))
1211	? cScatterGatherGCLeft
1212	: RT_ELEMENTS(aScatterGatherReadGC);
1213	cScatterGatherGCLeft -= cScatterGatherGCRead;
1214
1215	/* Read the SG entries. */
1216	PDMDevHlpPhysRead(pDevIns, GCPhysAddrScatterGatherCurrent, &aScatterGatherReadGC[0],
1217	cScatterGatherGCRead * sizeof(ScatterGatherEntry));
1218
1219	for (iScatterGatherEntry = 0; iScatterGatherEntry < cScatterGatherGCRead; iScatterGatherEntry++)
1220	{
1221	RTGCPHYS GCPhysAddrDataBase;
1222	size_t cbDataToTransfer;
1223
1224	Log(("%s: iScatterGatherEntry=%u\n", __FUNCTION__, iScatterGatherEntry));
1225
1226	GCPhysAddrDataBase = (RTGCPHYS)aScatterGatherReadGC[iScatterGatherEntry].u32PhysAddrSegmentBase;
1227	cbDataToTransfer = aScatterGatherReadGC[iScatterGatherEntry].cbSegment;
1228
1229	Log(("%s: GCPhysAddrDataBase=%RGp cbDataToTransfer=%u\n", __FUNCTION__, GCPhysAddrDataBase, cbDataToTransfer));
1230
1231	PDMDevHlpPhysWrite(pDevIns, GCPhysAddrDataBase, pbData, cbDataToTransfer);
1232	pbData += cbDataToTransfer;
1233	}
1234
1235	/* Set address to the next entries to read. */
1236	GCPhysAddrScatterGatherCurrent += cScatterGatherGCRead * sizeof(ScatterGatherEntry);
1237	} while (cScatterGatherGCLeft > 0);
1238
1239	}
1240	else if ( pTaskState->CommandControlBlockGuest.uOpcode == BUSLOGIC_CCB_OPCODE_INITIATOR_CCB
1241	\|\| pTaskState->CommandControlBlockGuest.uOpcode == BUSLOGIC_CCB_OPCODE_INITIATOR_CCB_RESIDUAL_DATA_LENGTH)
1242	{
1243	/* The buffer is not scattered. */
1244	RTGCPHYS GCPhysAddrDataBase = (RTGCPHYS)pTaskState->CommandControlBlockGuest.u32PhysAddrData;
1245
1246	AssertMsg(GCPhysAddrDataBase != 0, ("Physical address is 0\n"));
1247
1248	Log(("Non scattered buffer:\n"));
1249	Log(("u32PhysAddrData=%#x\n", pTaskState->CommandControlBlockGuest.u32PhysAddrData));
1250	Log(("cbData=%u\n", pTaskState->CommandControlBlockGuest.cbData));
1251	Log(("GCPhysAddrDataBase=0x%RGp\n", GCPhysAddrDataBase));
1252
1253	/* Copy the data into the guest memory. */
1254	PDMDevHlpPhysWrite(pDevIns, GCPhysAddrDataBase, pTaskState->DataSeg.pvSeg, pTaskState->DataSeg.cbSeg);
1255	}
1256	}
1257
1258	RTMemFree(pTaskState->DataSeg.pvSeg);
1259	pTaskState->DataSeg.pvSeg = NULL;
1260	pTaskState->DataSeg.cbSeg = 0;
1261	}
1262
1263	/**
1264	* Free the sense buffer.
1265	*
1266	* @returns nothing.
1267	* @param pTaskState Pointer to the task state.
1268	* @param fCopy If sense data should be copied to guest memory.
1269	*/
1270	static void buslogicSenseBufferFree(PBUSLOGICTASKSTATE pTaskState, bool fCopy)
1271	{
1272	PPDMDEVINS pDevIns = pTaskState->CTX_SUFF(pTargetDevice)->CTX_SUFF(pBusLogic)->CTX_SUFF(pDevIns);
1273	RTGCPHYS GCPhysAddrSenseBuffer = (RTGCPHYS)pTaskState->CommandControlBlockGuest.u32PhysAddrSenseData;
1274	uint32_t cbSenseBuffer = pTaskState->CommandControlBlockGuest.cbSenseData;
1275
1276	/* Copy into guest memory. */
1277	if (fCopy)
1278	PDMDevHlpPhysWrite(pDevIns, GCPhysAddrSenseBuffer, pTaskState->pbSenseBuffer, cbSenseBuffer);
1279
1280	RTMemFree(pTaskState->pbSenseBuffer);
1281	pTaskState->pbSenseBuffer = NULL;
1282	}
1283
1284	/**
1285	* Alloc the sense buffer.
1286	*
1287	* @returns VBox status code.
1288	* @param pTaskState Pointer to the task state.
1289	* @note Current assumption is that the sense buffer is not scattered and does not cross a page boundary.
1290	*/
1291	static int buslogicSenseBufferAlloc(PBUSLOGICTASKSTATE pTaskState)
1292	{
1293	PPDMDEVINS pDevIns = pTaskState->CTX_SUFF(pTargetDevice)->CTX_SUFF(pBusLogic)->CTX_SUFF(pDevIns);
1294	uint32_t cbSenseBuffer = pTaskState->CommandControlBlockGuest.cbSenseData;
1295
1296	pTaskState->pbSenseBuffer = (uint8_t *)RTMemAllocZ(cbSenseBuffer);
1297	if (!pTaskState->pbSenseBuffer)
1298	return VERR_NO_MEMORY;
1299
1300	return VINF_SUCCESS;
1301	}
1302	#endif /* IN_RING3 */
1303
1304	/**
1305	* Parses the command buffer and executes it.
1306	*
1307	* @returns VBox status code.
1308	* @param pBusLogic Pointer to the BusLogic device instance.
1309	*/
1310	static int buslogicProcessCommand(PBUSLOGIC pBusLogic)
1311	{
1312	int rc = VINF_SUCCESS;
1313	bool fSuppressIrq = false;
1314
1315	LogFlowFunc(("pBusLogic=%#p\n", pBusLogic));
1316	AssertMsg(pBusLogic->uOperationCode != 0xff, ("There is no command to execute\n"));
1317
1318	switch (pBusLogic->uOperationCode)
1319	{
1320	case BUSLOGICCOMMAND_INQUIRE_PCI_HOST_ADAPTER_INFORMATION:
1321	{
1322	PReplyInquirePCIHostAdapterInformation pReply = (PReplyInquirePCIHostAdapterInformation)pBusLogic->aReplyBuffer;
1323	memset(pReply, 0, sizeof(ReplyInquirePCIHostAdapterInformation));
1324
1325	/* It seems VMware does not provide valid information here too, lets do the same :) */
1326	pReply->InformationIsValid = 0;
1327	pReply->IsaIOPort = 0xff; /* Make it invalid. */
1328	pBusLogic->cbReplyParametersLeft = sizeof(ReplyInquirePCIHostAdapterInformation);
1329	break;
1330	}
1331	case BUSLOGICCOMMAND_MODIFY_IO_ADDRESS:
1332	{
1333	pBusLogic->cbReplyParametersLeft = 0;
1334	if (pBusLogic->aCommandBuffer[0] == 0x06)
1335	{
1336	Log(("Disabling ISA I/O ports.\n"));
1337	pBusLogic->fISAEnabled = false;
1338	}
1339	fSuppressIrq = true;
1340	break;
1341	}
1342	case BUSLOGICCOMMAND_INQUIRE_BOARD_ID:
1343	{
1344	/* The special option byte is important: If it is '0' or 'B', Windows NT drivers
1345	* for Adaptec AHA-154x may claim the adapter. The BusLogic drivers will claim
1346	* the adapter only when the byte is not '0' or 'B'.
1347	*/
1348	pBusLogic->aReplyBuffer[0] = 'A'; /* Firmware option bytes */
1349	pBusLogic->aReplyBuffer[1] = 'A'; /* Special option byte */
1350
1351	/* We report version 5.07B. This reply will provide the first two digits. */
1352	pBusLogic->aReplyBuffer[2] = '5'; /* Major version 5 */
1353	pBusLogic->aReplyBuffer[3] = '0'; /* Minor version 0 */
1354	pBusLogic->cbReplyParametersLeft = 4; /* Reply is 4 bytes long */
1355	break;
1356	}
1357	case BUSLOGICCOMMAND_INQUIRE_FIRMWARE_VERSION_3RD_LETTER:
1358	{
1359	pBusLogic->aReplyBuffer[0] = '7';
1360	pBusLogic->cbReplyParametersLeft = 1;
1361	break;
1362	}
1363	case BUSLOGICCOMMAND_INQUIRE_FIRMWARE_VERSION_LETTER:
1364	{
1365	pBusLogic->aReplyBuffer[0] = 'B';
1366	pBusLogic->cbReplyParametersLeft = 1;
1367	break;
1368	}
1369	case BUSLOGICCOMMAND_INQUIRE_HOST_ADAPTER_MODEL_NUMBER:
1370	{
1371	/* The reply length is set by the guest and is found in the first byte of the command buffer. */
1372	pBusLogic->cbReplyParametersLeft = pBusLogic->aCommandBuffer[0];
1373	memset(pBusLogic->aReplyBuffer, ' ', pBusLogic->cbReplyParametersLeft);
1374	const char aModelName[] = "958";
1375	int cCharsToTransfer = (pBusLogic->cbReplyParametersLeft <= (sizeof(aModelName) - 1))
1376	? pBusLogic->cbReplyParametersLeft
1377	: sizeof(aModelName) - 1;
1378
1379	for (int i = 0; i < cCharsToTransfer; i++)
1380	pBusLogic->aReplyBuffer[i] = aModelName[i];
1381
1382	break;
1383	}
1384	case BUSLOGICCOMMAND_INQUIRE_CONFIGURATION:
1385	{
1386	pBusLogic->cbReplyParametersLeft = sizeof(ReplyInquireConfiguration);
1387	PReplyInquireConfiguration pReply = (PReplyInquireConfiguration)pBusLogic->aReplyBuffer;
1388	memset(pReply, 0, sizeof(ReplyInquireConfiguration));
1389
1390	pReply->uHostAdapterId = 7; /* The controller has always 7 as ID. */
1391	/*
1392	* The rest of this reply only applies for ISA adapters.
1393	* This is a PCI adapter so they are not important and are skipped.
1394	*/
1395	break;
1396	}
1397	case BUSLOGICCOMMAND_INQUIRE_EXTENDED_SETUP_INFORMATION:
1398	{
1399	/* The reply length is set by the guest and is found in the first byte of the command buffer. */
1400	pBusLogic->cbReplyParametersLeft = pBusLogic->aCommandBuffer[0];
1401	PReplyInquireExtendedSetupInformation pReply = (PReplyInquireExtendedSetupInformation)pBusLogic->aReplyBuffer;
1402	memset(pReply, 0, sizeof(ReplyInquireExtendedSetupInformation));
1403
1404	//@todo: should this reflect the RAM contents (AutoSCSIRam)?
1405	pReply->uBusType = 'E'; /* EISA style */
1406	pReply->u16ScatterGatherLimit = 8192;
1407	pReply->fLevelSensitiveInterrupt = true;
1408	pReply->fHostWideSCSI = true;
1409	pReply->fHostUltraSCSI = true;
1410	memcpy(pReply->aFirmwareRevision, "07B", sizeof(pReply->aFirmwareRevision));
1411
1412	break;
1413	}
1414	case BUSLOGICCOMMAND_INQUIRE_SETUP_INFORMATION:
1415	{
1416	/* The reply length is set by the guest and is found in the first byte of the command buffer. */
1417	pBusLogic->cbReplyParametersLeft = pBusLogic->aCommandBuffer[0];
1418	PReplyInquireSetupInformation pReply = (PReplyInquireSetupInformation)pBusLogic->aReplyBuffer;
1419	memset(pReply, 0, sizeof(ReplyInquireSetupInformation));
1420	break;
1421	}
1422	case BUSLOGICCOMMAND_FETCH_HOST_ADAPTER_LOCAL_RAM:
1423	{
1424	/*
1425	* First element in the command buffer contains start offset to read from
1426	* and second one the number of bytes to read.
1427	*/
1428	uint8_t uOffset = pBusLogic->aCommandBuffer[0];
1429	pBusLogic->cbReplyParametersLeft = pBusLogic->aCommandBuffer[1];
1430
1431	pBusLogic->fUseLocalRam = true;
1432	pBusLogic->iReply = uOffset;
1433	break;
1434	}
1435	case BUSLOGICCOMMAND_INITIALIZE_EXTENDED_MAILBOX:
1436	{
1437	PRequestInitializeExtendedMailbox pRequest = (PRequestInitializeExtendedMailbox)pBusLogic->aCommandBuffer;
1438
1439	pBusLogic->cMailbox = pRequest->cMailbox;
1440	pBusLogic->GCPhysAddrMailboxOutgoingBase = (RTGCPHYS)pRequest->uMailboxBaseAddress;
1441	/* The area for incoming mailboxes is right after the last entry of outgoing mailboxes. */
1442	pBusLogic->GCPhysAddrMailboxIncomingBase = (RTGCPHYS)pRequest->uMailboxBaseAddress + (pBusLogic->cMailbox * sizeof(Mailbox));
1443
1444	Log(("GCPhysAddrMailboxOutgoingBase=%RGp\n", pBusLogic->GCPhysAddrMailboxOutgoingBase));
1445	Log(("GCPhysAddrMailboxIncomingBase=%RGp\n", pBusLogic->GCPhysAddrMailboxIncomingBase));
1446	Log(("cMailboxes=%u\n", pBusLogic->cMailbox));
1447
1448	pBusLogic->regStatus &= ~BUSLOGIC_REGISTER_STATUS_INITIALIZATION_REQUIRED;
1449	pBusLogic->cbReplyParametersLeft = 0;
1450	break;
1451	}
1452	case BUSLOGICCOMMAND_ENABLE_STRICT_ROUND_ROBIN_MODE:
1453	{
1454	if (pBusLogic->aCommandBuffer[0] == 0)
1455	pBusLogic->fStrictRoundRobinMode = false;
1456	else if (pBusLogic->aCommandBuffer[0] == 1)
1457	pBusLogic->fStrictRoundRobinMode = true;
1458	else
1459	AssertMsgFailed(("Invalid round robin mode %d\n", pBusLogic->aCommandBuffer[0]));
1460
1461	pBusLogic->cbReplyParametersLeft = 0;
1462	break;
1463	}
1464	case BUSLOGICCOMMAND_SET_CCB_FORMAT:
1465	{
1466	if (pBusLogic->aCommandBuffer[0] == 0)
1467	pBusLogic->fExtendedLunCCBFormat = false;
1468	else if (pBusLogic->aCommandBuffer[0] == 1)
1469	pBusLogic->fExtendedLunCCBFormat = true;
1470	else
1471	AssertMsgFailed(("Invalid CCB format %d\n", pBusLogic->aCommandBuffer[0]));
1472
1473	pBusLogic->cbReplyParametersLeft = 0;
1474	break;
1475	}
1476	case BUSLOGICCOMMAND_INQUIRE_TARGET_DEVICES:
1477	{
1478	/* Each bit which is set in the 16bit wide variable means a present device. */
1479	uint16_t u16TargetsPresentMask = 0;
1480
1481	for (uint8_t i = 0; i < RT_ELEMENTS(pBusLogic->aDeviceStates); i++)
1482	{
1483	if (pBusLogic->aDeviceStates[i].fPresent)
1484	u16TargetsPresentMask \|= (1 << i);
1485	}
1486	pBusLogic->aReplyBuffer[0] = (uint8_t)u16TargetsPresentMask;
1487	pBusLogic->aReplyBuffer[1] = (uint8_t)(u16TargetsPresentMask >> 8);
1488	pBusLogic->cbReplyParametersLeft = 2;
1489	break;
1490	}
1491	case BUSLOGICCOMMAND_INQUIRE_SYNCHRONOUS_PERIOD:
1492	{
1493	pBusLogic->cbReplyParametersLeft = pBusLogic->aCommandBuffer[0];
1494
1495	for (uint8_t i = 0; i < pBusLogic->cbReplyParametersLeft; i++)
1496	pBusLogic->aReplyBuffer[i] = 0; /* @todo Figure if we need something other here. It's not needed for the linux driver */
1497
1498	break;
1499	}
1500	case BUSLOGICCOMMAND_DISABLE_HOST_ADAPTER_INTERRUPT:
1501	{
1502	if (pBusLogic->aCommandBuffer[0] == 0)
1503	pBusLogic->fIRQEnabled = false;
1504	else
1505	pBusLogic->fIRQEnabled = true;
1506	/* No interrupt signaled regardless of enable/disable. */
1507	fSuppressIrq = true;
1508	break;
1509	}
1510	case BUSLOGICCOMMAND_ECHO_COMMAND_DATA:
1511	{
1512	pBusLogic->aReplyBuffer[0] = pBusLogic->aCommandBuffer[0];
1513	pBusLogic->cbReplyParametersLeft = 1;
1514	break;
1515	}
1516	case BUSLOGICCOMMAND_SET_PREEMPT_TIME_ON_BUS:
1517	{
1518	pBusLogic->cbReplyParametersLeft = 0;
1519	pBusLogic->LocalRam.structured.autoSCSIData.uBusOnDelay = pBusLogic->aCommandBuffer[0];
1520	Log(("Bus-on time: %d\n", pBusLogic->aCommandBuffer[0]));
1521	break;
1522	}
1523	case BUSLOGICCOMMAND_SET_TIME_OFF_BUS:
1524	{
1525	pBusLogic->cbReplyParametersLeft = 0;
1526	pBusLogic->LocalRam.structured.autoSCSIData.uBusOffDelay = pBusLogic->aCommandBuffer[0];
1527	Log(("Bus-off time: %d\n", pBusLogic->aCommandBuffer[0]));
1528	break;
1529	}
1530	case BUSLOGICCOMMAND_EXT_BIOS_INFO:
1531	case BUSLOGICCOMMAND_UNLOCK_MAILBOX:
1532	/* Commands valid for Adaptec 154xC which we don't handle since
1533	* we pretend being 154xB compatible. Just mark the command as invalid.
1534	*/
1535	Log(("Command %#x not valid for this adapter\n", pBusLogic->uOperationCode));
1536	pBusLogic->cbReplyParametersLeft = 0;
1537	pBusLogic->regStatus \|= BUSLOGIC_REGISTER_STATUS_COMMAND_INVALID;
1538	break;
1539	case BUSLOGICCOMMAND_EXECUTE_MAILBOX_COMMAND: /* Should be handled already. */
1540	default:
1541	AssertMsgFailed(("Invalid command %#x\n", pBusLogic->uOperationCode));
1542	}
1543
1544	Log(("uOperationCode=%#x, cbReplyParametersLeft=%d\n", pBusLogic->uOperationCode, pBusLogic->cbReplyParametersLeft));
1545
1546	/* Set the data in ready bit in the status register in case the command has a reply. */
1547	if (pBusLogic->cbReplyParametersLeft)
1548	pBusLogic->regStatus \|= BUSLOGIC_REGISTER_STATUS_DATA_IN_REGISTER_READY;
1549	else
1550	buslogicCommandComplete(pBusLogic, fSuppressIrq);
1551
1552	return rc;
1553	}
1554
1555	/**
1556	* Read a register from the BusLogic adapter.
1557	*
1558	* @returns VBox status code.
1559	* @param pBusLogic Pointer to the BusLogic instance data.
1560	* @param iRegister The index of the register to read.
1561	* @param pu32 Where to store the register content.
1562	*/
1563	static int buslogicRegisterRead(PBUSLOGIC pBusLogic, unsigned iRegister, uint32_t *pu32)
1564	{
1565	int rc = VINF_SUCCESS;
1566
1567	switch (iRegister)
1568	{
1569	case BUSLOGIC_REGISTER_STATUS:
1570	{
1571	*pu32 = pBusLogic->regStatus;
1572	/*
1573	* If the diagnostic active bit is set we are in a hard reset initiated from the guest.
1574	* The guest reads the status register and waits that the host adapter ready bit is set.
1575	*/
1576	if (pBusLogic->regStatus & BUSLOGIC_REGISTER_STATUS_DIAGNOSTIC_ACTIVE)
1577	{
1578	pBusLogic->regStatus &= ~BUSLOGIC_REGISTER_STATUS_DIAGNOSTIC_ACTIVE;
1579	pBusLogic->regStatus \|= BUSLOGIC_REGISTER_STATUS_HOST_ADAPTER_READY;
1580	}
1581	break;
1582	}
1583	case BUSLOGIC_REGISTER_DATAIN:
1584	{
1585	if (pBusLogic->fUseLocalRam)
1586	*pu32 = pBusLogic->LocalRam.u8View[pBusLogic->iReply];
1587	else
1588	*pu32 = pBusLogic->aReplyBuffer[pBusLogic->iReply];
1589
1590	pBusLogic->iReply++;
1591	pBusLogic->cbReplyParametersLeft--;
1592
1593	LogFlowFunc(("cbReplyParametersLeft=%u\n", pBusLogic->cbReplyParametersLeft));
1594	if (!pBusLogic->cbReplyParametersLeft)
1595	{
1596	/*
1597	* Reply finished, set command complete bit, unset data in ready bit and
1598	* interrupt the guest if enabled.
1599	*/
1600	buslogicCommandComplete(pBusLogic, false);
1601	}
1602	break;
1603	}
1604	case BUSLOGIC_REGISTER_INTERRUPT:
1605	{
1606	*pu32 = pBusLogic->regInterrupt;
1607	break;
1608	}
1609	case BUSLOGIC_REGISTER_GEOMETRY:
1610	{
1611	*pu32 = pBusLogic->regGeometry;
1612	break;
1613	}
1614	default:
1615	*pu32 = UINT32_C(0xffffffff);
1616	}
1617
1618	Log2(("%s: pu32=%p:{%.*Rhxs} iRegister=%d rc=%Rrc\n",
1619	__FUNCTION__, pu32, 1, pu32, iRegister, rc));
1620
1621	return rc;
1622	}
1623
1624	/**
1625	* Write a value to a register.
1626	*
1627	* @returns VBox status code.
1628	* @param pBusLogic Pointer to the BusLogic instance data.
1629	* @param iRegister The index of the register to read.
1630	* @param uVal The value to write.
1631	*/
1632	static int buslogicRegisterWrite(PBUSLOGIC pBusLogic, unsigned iRegister, uint8_t uVal)
1633	{
1634	int rc = VINF_SUCCESS;
1635
1636	switch (iRegister)
1637	{
1638	case BUSLOGIC_REGISTER_CONTROL:
1639	{
1640	rc = PDMCritSectEnter(&pBusLogic->CritSectIntr, VINF_IOM_R3_IOPORT_WRITE);
1641	if (rc != VINF_SUCCESS)
1642	return rc;
1643
1644	#ifdef LOG_ENABLED
1645	uint32_t cMailboxesReady = ASMAtomicXchgU32(&pBusLogic->cInMailboxesReady, 0);
1646	Log(("%u incoming mailboxes are ready when this interrupt was cleared\n", cMailboxesReady));
1647	#endif
1648
1649	if (uVal & BUSLOGIC_REGISTER_CONTROL_INTERRUPT_RESET)
1650	buslogicClearInterrupt(pBusLogic);
1651
1652	PDMCritSectLeave(&pBusLogic->CritSectIntr);
1653
1654	if ((uVal & BUSLOGIC_REGISTER_CONTROL_HARD_RESET) \|\| (uVal & BUSLOGIC_REGISTER_CONTROL_SOFT_RESET))
1655	{
1656	#ifdef IN_RING3
1657	buslogicIntiateHardReset(pBusLogic);
1658	#else
1659	rc = VINF_IOM_R3_IOPORT_WRITE;
1660	#endif
1661	}
1662
1663	break;
1664	}
1665	case BUSLOGIC_REGISTER_COMMAND:
1666	{
1667	/* Fast path for mailbox execution command. */
1668	if ((uVal == BUSLOGICCOMMAND_EXECUTE_MAILBOX_COMMAND) && (pBusLogic->uOperationCode == 0xff))
1669	{
1670	ASMAtomicIncU32(&pBusLogic->cMailboxesReady);
1671	if (!ASMAtomicXchgBool(&pBusLogic->fNotificationSend, true))
1672	{
1673	/* Send new notification to the queue. */
1674	PPDMQUEUEITEMCORE pItem = PDMQueueAlloc(pBusLogic->CTX_SUFF(pNotifierQueue));
1675	AssertMsg(pItem, ("Allocating item for queue failed\n"));
1676	PDMQueueInsert(pBusLogic->CTX_SUFF(pNotifierQueue), (PPDMQUEUEITEMCORE)pItem);
1677	}
1678
1679	return rc;
1680	}
1681
1682	/*
1683	* Check if we are already fetch command parameters from the guest.
1684	* If not we initialize executing a new command.
1685	*/
1686	if (pBusLogic->uOperationCode == 0xff)
1687	{
1688	pBusLogic->uOperationCode = uVal;
1689	pBusLogic->iParameter = 0;
1690
1691	/* Mark host adapter as busy and clear the invalid status bit. */
1692	pBusLogic->regStatus &= ~(BUSLOGIC_REGISTER_STATUS_HOST_ADAPTER_READY \| BUSLOGIC_REGISTER_STATUS_COMMAND_INVALID);
1693
1694	/* Get the number of bytes for parameters from the command code. */
1695	switch (pBusLogic->uOperationCode)
1696	{
1697	case BUSLOGICCOMMAND_INQUIRE_FIRMWARE_VERSION_LETTER:
1698	case BUSLOGICCOMMAND_INQUIRE_BOARD_ID:
1699	case BUSLOGICCOMMAND_INQUIRE_FIRMWARE_VERSION_3RD_LETTER:
1700	case BUSLOGICCOMMAND_INQUIRE_PCI_HOST_ADAPTER_INFORMATION:
1701	case BUSLOGICCOMMAND_INQUIRE_CONFIGURATION:
1702	case BUSLOGICCOMMAND_INQUIRE_TARGET_DEVICES:
1703	pBusLogic->cbCommandParametersLeft = 0;
1704	break;
1705	case BUSLOGICCOMMAND_MODIFY_IO_ADDRESS:
1706	case BUSLOGICCOMMAND_INQUIRE_EXTENDED_SETUP_INFORMATION:
1707	case BUSLOGICCOMMAND_INQUIRE_SETUP_INFORMATION:
1708	case BUSLOGICCOMMAND_INQUIRE_HOST_ADAPTER_MODEL_NUMBER:
1709	case BUSLOGICCOMMAND_ENABLE_STRICT_ROUND_ROBIN_MODE:
1710	case BUSLOGICCOMMAND_SET_CCB_FORMAT:
1711	case BUSLOGICCOMMAND_INQUIRE_SYNCHRONOUS_PERIOD:
1712	case BUSLOGICCOMMAND_DISABLE_HOST_ADAPTER_INTERRUPT:
1713	case BUSLOGICCOMMAND_ECHO_COMMAND_DATA:
1714	case BUSLOGICCOMMAND_SET_PREEMPT_TIME_ON_BUS:
1715	case BUSLOGICCOMMAND_SET_TIME_OFF_BUS:
1716	pBusLogic->cbCommandParametersLeft = 1;
1717	break;
1718	case BUSLOGICCOMMAND_FETCH_HOST_ADAPTER_LOCAL_RAM:
1719	pBusLogic->cbCommandParametersLeft = 2;
1720	break;
1721	case BUSLOGICCOMMAND_INITIALIZE_EXTENDED_MAILBOX:
1722	pBusLogic->cbCommandParametersLeft = sizeof(RequestInitializeExtendedMailbox);
1723	break;
1724	case BUSLOGICCOMMAND_EXT_BIOS_INFO:
1725	case BUSLOGICCOMMAND_UNLOCK_MAILBOX:
1726	/* Invalid commands. */
1727	pBusLogic->cbCommandParametersLeft = 0;
1728	break;
1729	case BUSLOGICCOMMAND_EXECUTE_MAILBOX_COMMAND: /* Should not come here anymore. */
1730	default:
1731	AssertMsgFailed(("Invalid operation code %#x\n", uVal));
1732	}
1733	}
1734	else
1735	{
1736	/*
1737	* The real adapter would set the Command register busy bit in the status register.
1738	* The guest has to wait until it is unset.
1739	* We don't need to do it because the guest does not continue execution while we are in this
1740	* function.
1741	*/
1742	pBusLogic->aCommandBuffer[pBusLogic->iParameter] = uVal;
1743	pBusLogic->iParameter++;
1744	pBusLogic->cbCommandParametersLeft--;
1745	}
1746
1747	/* Start execution of command if there are no parameters left. */
1748	if (!pBusLogic->cbCommandParametersLeft)
1749	{
1750	rc = buslogicProcessCommand(pBusLogic);
1751	AssertMsgRC(rc, ("Processing command failed rc=%Rrc\n", rc));
1752	}
1753	break;
1754	}
1755	default:
1756	AssertMsgFailed(("Register not available\n"));
1757	rc = VERR_IOM_IOPORT_UNUSED;
1758	}
1759
1760	return rc;
1761	}
1762
1763	/**
1764	* Memory mapped I/O Handler for read operations.
1765	*
1766	* @returns VBox status code.
1767	*
1768	* @param pDevIns The device instance.
1769	* @param pvUser User argument.
1770	* @param GCPhysAddr Physical address (in GC) where the read starts.
1771	* @param pv Where to store the result.
1772	* @param cb Number of bytes read.
1773	*/
1774	PDMBOTHCBDECL(int) buslogicMMIORead(PPDMDEVINS pDevIns, void *pvUser,
1775	RTGCPHYS GCPhysAddr, void *pv, unsigned cb)
1776	{
1777	/* the linux driver does not make use of the MMIO area. */
1778	AssertMsgFailed(("MMIO Read\n"));
1779	return VINF_SUCCESS;
1780	}
1781
1782	/**
1783	* Memory mapped I/O Handler for write operations.
1784	*
1785	* @returns VBox status code.
1786	*
1787	* @param pDevIns The device instance.
1788	* @param pvUser User argument.
1789	* @param GCPhysAddr Physical address (in GC) where the read starts.
1790	* @param pv Where to fetch the result.
1791	* @param cb Number of bytes to write.
1792	*/
1793	PDMBOTHCBDECL(int) buslogicMMIOWrite(PPDMDEVINS pDevIns, void *pvUser,
1794	RTGCPHYS GCPhysAddr, void const *pv, unsigned cb)
1795	{
1796	/* the linux driver does not make use of the MMIO area. */
1797	AssertMsgFailed(("MMIO Write\n"));
1798	return VINF_SUCCESS;
1799	}
1800
1801	/**
1802	* Port I/O Handler for IN operations.
1803	*
1804	* @returns VBox status code.
1805	*
1806	* @param pDevIns The device instance.
1807	* @param pvUser User argument.
1808	* @param uPort Port number used for the IN operation.
1809	* @param pu32 Where to store the result.
1810	* @param cb Number of bytes read.
1811	*/
1812	PDMBOTHCBDECL(int) buslogicIOPortRead (PPDMDEVINS pDevIns, void *pvUser,
1813	RTIOPORT Port, uint32_t *pu32, unsigned cb)
1814	{
1815	PBUSLOGIC pBusLogic = PDMINS_2_DATA(pDevIns, PBUSLOGIC);;
1816	unsigned iRegister = Port - pBusLogic->IOPortBase;
1817
1818	Assert(cb == 1);
1819
1820	return buslogicRegisterRead(pBusLogic, iRegister, pu32);
1821	}
1822
1823	/**
1824	* Port I/O Handler for OUT operations.
1825	*
1826	* @returns VBox status code.
1827	*
1828	* @param pDevIns The device instance.
1829	* @param pvUser User argument.
1830	* @param uPort Port number used for the IN operation.
1831	* @param u32 The value to output.
1832	* @param cb The value size in bytes.
1833	*/
1834	PDMBOTHCBDECL(int) buslogicIOPortWrite (PPDMDEVINS pDevIns, void *pvUser,
1835	RTIOPORT Port, uint32_t u32, unsigned cb)
1836	{
1837	PBUSLOGIC pBusLogic = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
1838	int rc = VINF_SUCCESS;
1839	unsigned iRegister = Port - pBusLogic->IOPortBase;
1840	uint8_t uVal = (uint8_t)u32;
1841
1842	Assert(cb == 1);
1843
1844	rc = buslogicRegisterWrite(pBusLogic, iRegister, (uint8_t)uVal);
1845
1846	Log2(("#%d %s: pvUser=%#p cb=%d u32=%#x Port=%#x rc=%Rrc\n",
1847	pDevIns->iInstance, __FUNCTION__, pvUser, cb, u32, Port, rc));
1848
1849	return rc;
1850	}
1851
1852	#ifdef IN_RING3
1853	/**
1854	* Port I/O Handler for IN operations - legacy port.
1855	*
1856	* @returns VBox status code.
1857	*
1858	* @param pDevIns The device instance.
1859	* @param pvUser User argument.
1860	* @param uPort Port number used for the IN operation.
1861	* @param pu32 Where to store the result.
1862	* @param cb Number of bytes read.
1863	*/
1864	static int buslogicIsaIOPortRead (PPDMDEVINS pDevIns, void *pvUser,
1865	RTIOPORT Port, uint32_t *pu32, unsigned cb)
1866	{
1867	int rc;
1868	PBUSLOGIC pBusLogic = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
1869
1870	Assert(cb == 1);
1871
1872	if (!pBusLogic->fISAEnabled)
1873	return VINF_SUCCESS;
1874
1875	rc = vboxscsiReadRegister(&pBusLogic->VBoxSCSI, (Port - BUSLOGIC_BIOS_IO_PORT), pu32);
1876
1877	//Log2(("%s: pu32=%p:{%.*Rhxs} iRegister=%d rc=%Rrc\n",
1878	// __FUNCTION__, pu32, 1, pu32, (Port - BUSLOGIC_BIOS_IO_PORT), rc));
1879
1880	return rc;
1881	}
1882
1883	static void buslogicWarningDiskFull(PPDMDEVINS pDevIns)
1884	{
1885	int rc;
1886	LogRel(("BusLogic#%d: Host disk full\n", pDevIns->iInstance));
1887	rc = PDMDevHlpVMSetRuntimeError(pDevIns, VMSETRTERR_FLAGS_SUSPEND \| VMSETRTERR_FLAGS_NO_WAIT, "DevBusLogic_DISKFULL",
1888	N_("Host system reported disk full. VM execution is suspended. You can resume after freeing some space"));
1889	AssertRC(rc);
1890	}
1891
1892	static void buslogicWarningFileTooBig(PPDMDEVINS pDevIns)
1893	{
1894	int rc;
1895	LogRel(("BusLogic#%d: File too big\n", pDevIns->iInstance));
1896	rc = PDMDevHlpVMSetRuntimeError(pDevIns, VMSETRTERR_FLAGS_SUSPEND \| VMSETRTERR_FLAGS_NO_WAIT, "DevBusLogic_FILETOOBIG",
1897	N_("Host system reported that the file size limit of the host file system has been exceeded. VM execution is suspended. You need to move your virtual hard disk to a filesystem which allows bigger files"));
1898	AssertRC(rc);
1899	}
1900
1901	static void buslogicWarningISCSI(PPDMDEVINS pDevIns)
1902	{
1903	int rc;
1904	LogRel(("BusLogic#%d: iSCSI target unavailable\n", pDevIns->iInstance));
1905	rc = PDMDevHlpVMSetRuntimeError(pDevIns, VMSETRTERR_FLAGS_SUSPEND \| VMSETRTERR_FLAGS_NO_WAIT, "DevBusLogic_ISCSIDOWN",
1906	N_("The iSCSI target has stopped responding. VM execution is suspended. You can resume when it is available again"));
1907	AssertRC(rc);
1908	}
1909
1910	static void buslogicWarningUnknown(PPDMDEVINS pDevIns, int rc)
1911	{
1912	int rc2;
1913	LogRel(("BusLogic#%d: Unknown but recoverable error has occurred (rc=%Rrc)\n", pDevIns->iInstance, rc));
1914	rc2 = PDMDevHlpVMSetRuntimeError(pDevIns, VMSETRTERR_FLAGS_SUSPEND \| VMSETRTERR_FLAGS_NO_WAIT, "DevBusLogic_UNKNOWN",
1915	N_("An unknown but recoverable I/O error has occurred (rc=%Rrc). VM execution is suspended. You can resume when the error is fixed"), rc);
1916	AssertRC(rc2);
1917	}
1918
1919	static void buslogicRedoSetWarning(PBUSLOGIC pThis, int rc)
1920	{
1921	if (rc == VERR_DISK_FULL)
1922	buslogicWarningDiskFull(pThis->CTX_SUFF(pDevIns));
1923	else if (rc == VERR_FILE_TOO_BIG)
1924	buslogicWarningFileTooBig(pThis->CTX_SUFF(pDevIns));
1925	else if (rc == VERR_BROKEN_PIPE \|\| rc == VERR_NET_CONNECTION_REFUSED)
1926	{
1927	/* iSCSI connection abort (first error) or failure to reestablish
1928	* connection (second error). Pause VM. On resume we'll retry. */
1929	buslogicWarningISCSI(pThis->CTX_SUFF(pDevIns));
1930	}
1931	else
1932	buslogicWarningUnknown(pThis->CTX_SUFF(pDevIns), rc);
1933	}
1934
1935
1936	static int buslogicPrepareBIOSSCSIRequest(PBUSLOGIC pBusLogic)
1937	{
1938	int rc;
1939	PBUSLOGICTASKSTATE pTaskState;
1940	uint32_t uTargetDevice;
1941
1942	rc = RTMemCacheAllocEx(pBusLogic->hTaskCache, (void **)&pTaskState);
1943	AssertMsgRCReturn(rc, ("Getting task from cache failed rc=%Rrc\n", rc), rc);
1944
1945	pTaskState->fBIOS = true;
1946
1947	rc = vboxscsiSetupRequest(&pBusLogic->VBoxSCSI, &pTaskState->PDMScsiRequest, &uTargetDevice);
1948	AssertMsgRCReturn(rc, ("Setting up SCSI request failed rc=%Rrc\n", rc), rc);
1949
1950	pTaskState->PDMScsiRequest.pvUser = pTaskState;
1951
1952	pTaskState->CTX_SUFF(pTargetDevice) = &pBusLogic->aDeviceStates[uTargetDevice];
1953
1954	if (!pTaskState->CTX_SUFF(pTargetDevice)->fPresent)
1955	{
1956	/* Device is not present. */
1957	AssertMsg(pTaskState->PDMScsiRequest.pbCDB[0] == SCSI_INQUIRY,
1958	("Device is not present but command is not inquiry\n"));
1959
1960	SCSIINQUIRYDATA ScsiInquiryData;
1961
1962	memset(&ScsiInquiryData, 0, sizeof(SCSIINQUIRYDATA));
1963	ScsiInquiryData.u5PeripheralDeviceType = SCSI_INQUIRY_DATA_PERIPHERAL_DEVICE_TYPE_UNKNOWN;
1964	ScsiInquiryData.u3PeripheralQualifier = SCSI_INQUIRY_DATA_PERIPHERAL_QUALIFIER_NOT_CONNECTED_NOT_SUPPORTED;
1965
1966	memcpy(pBusLogic->VBoxSCSI.pBuf, &ScsiInquiryData, 5);
1967
1968	rc = vboxscsiRequestFinished(&pBusLogic->VBoxSCSI, &pTaskState->PDMScsiRequest);
1969	AssertMsgRCReturn(rc, ("Finishing BIOS SCSI request failed rc=%Rrc\n", rc), rc);
1970
1971	RTMemCacheFree(pBusLogic->hTaskCache, pTaskState);
1972	}
1973	else
1974	{
1975	LogFlowFunc(("before increment %u\n", pTaskState->CTX_SUFF(pTargetDevice)->cOutstandingRequests));
1976	ASMAtomicIncU32(&pTaskState->CTX_SUFF(pTargetDevice)->cOutstandingRequests);
1977	LogFlowFunc(("after increment %u\n", pTaskState->CTX_SUFF(pTargetDevice)->cOutstandingRequests));
1978
1979	rc = pTaskState->CTX_SUFF(pTargetDevice)->pDrvSCSIConnector->pfnSCSIRequestSend(pTaskState->CTX_SUFF(pTargetDevice)->pDrvSCSIConnector,
1980	&pTaskState->PDMScsiRequest);
1981	AssertMsgRC(rc, ("Sending request to SCSI layer failed rc=%Rrc\n", rc));
1982	}
1983
1984	return rc;
1985	}
1986
1987	/**
1988	* Port I/O Handler for OUT operations - legacy port.
1989	*
1990	* @returns VBox status code.
1991	*
1992	* @param pDevIns The device instance.
1993	* @param pvUser User argument.
1994	* @param uPort Port number used for the IN operation.
1995	* @param u32 The value to output.
1996	* @param cb The value size in bytes.
1997	*/
1998	static int buslogicIsaIOPortWrite (PPDMDEVINS pDevIns, void *pvUser,
1999	RTIOPORT Port, uint32_t u32, unsigned cb)
2000	{
2001	int rc;
2002	PBUSLOGIC pBusLogic = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2003
2004	Log2(("#%d %s: pvUser=%#p cb=%d u32=%#x Port=%#x\n",
2005	pDevIns->iInstance, __FUNCTION__, pvUser, cb, u32, Port));
2006
2007	Assert(cb == 1);
2008
2009	if (!pBusLogic->fISAEnabled)
2010	return VINF_SUCCESS;
2011
2012	rc = vboxscsiWriteRegister(&pBusLogic->VBoxSCSI, (Port - BUSLOGIC_BIOS_IO_PORT), (uint8_t)u32);
2013	if (rc == VERR_MORE_DATA)
2014	{
2015	rc = buslogicPrepareBIOSSCSIRequest(pBusLogic);
2016	AssertRC(rc);
2017	}
2018	else if (RT_FAILURE(rc))
2019	AssertMsgFailed(("Writing BIOS register failed %Rrc\n", rc));
2020
2021	return VINF_SUCCESS;
2022	}
2023
2024	/**
2025	* Port I/O Handler for primary port range OUT string operations.
2026	* @see FNIOMIOPORTOUTSTRING for details.
2027	*/
2028	static DECLCALLBACK(int) buslogicIsaIOPortWriteStr(PPDMDEVINS pDevIns, void pvUser, RTIOPORT Port, RTGCPTR pGCPtrSrc, PRTGCUINTREG pcTransfer, unsigned cb)
2029	{
2030	PBUSLOGIC pBusLogic = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2031	int rc;
2032
2033	Log2(("#%d %s: pvUser=%#p cb=%d Port=%#x\n",
2034	pDevIns->iInstance, __FUNCTION__, pvUser, cb, Port));
2035
2036	rc = vboxscsiWriteString(pDevIns, &pBusLogic->VBoxSCSI, (Port - BUSLOGIC_BIOS_IO_PORT),
2037	pGCPtrSrc, pcTransfer, cb);
2038	if (rc == VERR_MORE_DATA)
2039	{
2040	rc = buslogicPrepareBIOSSCSIRequest(pBusLogic);
2041	AssertRC(rc);
2042	}
2043	else if (RT_FAILURE(rc))
2044	AssertMsgFailed(("Writing BIOS register failed %Rrc\n", rc));
2045
2046	return rc;
2047	}
2048
2049	/**
2050	* Port I/O Handler for primary port range IN string operations.
2051	* @see FNIOMIOPORTINSTRING for details.
2052	*/
2053	static DECLCALLBACK(int) buslogicIsaIOPortReadStr(PPDMDEVINS pDevIns, void pvUser, RTIOPORT Port, RTGCPTR pGCPtrDst, PRTGCUINTREG pcTransfer, unsigned cb)
2054	{
2055	PBUSLOGIC pBusLogic = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2056
2057	LogFlowFunc(("#%d %s: pvUser=%#p cb=%d Port=%#x\n",
2058	pDevIns->iInstance, __FUNCTION__, pvUser, cb, Port));
2059
2060	return vboxscsiReadString(pDevIns, &pBusLogic->VBoxSCSI, (Port - BUSLOGIC_BIOS_IO_PORT),
2061	pGCPtrDst, pcTransfer, cb);
2062	}
2063
2064	static DECLCALLBACK(int) buslogicMMIOMap(PPCIDEVICE pPciDev, /unsigned/ int iRegion,
2065	RTGCPHYS GCPhysAddress, uint32_t cb,
2066	PCIADDRESSSPACE enmType)
2067	{
2068	PPDMDEVINS pDevIns = pPciDev->pDevIns;
2069	PBUSLOGIC pThis = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2070	int rc = VINF_SUCCESS;
2071
2072	Log2(("%s: registering MMIO area at GCPhysAddr=%RGp cb=%u\n", __FUNCTION__, GCPhysAddress, cb));
2073
2074	Assert(cb >= 32);
2075
2076	if (enmType == PCI_ADDRESS_SPACE_MEM)
2077	{
2078	/* We use the assigned size here, because we currently only support page aligned MMIO ranges. */
2079	rc = PDMDevHlpMMIORegister(pDevIns, GCPhysAddress, cb, NULL /pvUser/,
2080	IOMMMIO_FLAGS_READ_PASSTHRU \| IOMMMIO_FLAGS_WRITE_PASSTHRU,
2081	buslogicMMIOWrite, buslogicMMIORead, "BusLogic");
2082	if (RT_FAILURE(rc))
2083	return rc;
2084
2085	if (pThis->fR0Enabled)
2086	{
2087	rc = PDMDevHlpMMIORegisterR0(pDevIns, GCPhysAddress, cb, NIL_RTR0PTR /pvUser/,
2088	"buslogicMMIOWrite", "buslogicMMIORead");
2089	if (RT_FAILURE(rc))
2090	return rc;
2091	}
2092
2093	if (pThis->fGCEnabled)
2094	{
2095	rc = PDMDevHlpMMIORegisterRC(pDevIns, GCPhysAddress, cb, NIL_RTRCPTR /pvUser/,
2096	"buslogicMMIOWrite", "buslogicMMIORead");
2097	if (RT_FAILURE(rc))
2098	return rc;
2099	}
2100
2101	pThis->MMIOBase = GCPhysAddress;
2102	}
2103	else if (enmType == PCI_ADDRESS_SPACE_IO)
2104	{
2105	rc = PDMDevHlpIOPortRegister(pDevIns, (RTIOPORT)GCPhysAddress, 32,
2106	NULL, buslogicIOPortWrite, buslogicIOPortRead, NULL, NULL, "BusLogic");
2107	if (RT_FAILURE(rc))
2108	return rc;
2109
2110	if (pThis->fR0Enabled)
2111	{
2112	rc = PDMDevHlpIOPortRegisterR0(pDevIns, (RTIOPORT)GCPhysAddress, 32,
2113	0, "buslogicIOPortWrite", "buslogicIOPortRead", NULL, NULL, "BusLogic");
2114	if (RT_FAILURE(rc))
2115	return rc;
2116	}
2117
2118	if (pThis->fGCEnabled)
2119	{
2120	rc = PDMDevHlpIOPortRegisterRC(pDevIns, (RTIOPORT)GCPhysAddress, 32,
2121	0, "buslogicIOPortWrite", "buslogicIOPortRead", NULL, NULL, "BusLogic");
2122	if (RT_FAILURE(rc))
2123	return rc;
2124	}
2125
2126	pThis->IOPortBase = (RTIOPORT)GCPhysAddress;
2127	}
2128	else
2129	AssertMsgFailed(("Invalid enmType=%d\n", enmType));
2130
2131	return rc;
2132	}
2133
2134	static DECLCALLBACK(int) buslogicDeviceSCSIRequestCompleted(PPDMISCSIPORT pInterface, PPDMSCSIREQUEST pSCSIRequest,
2135	int rcCompletion, bool fRedo, int rcReq)
2136	{
2137	int rc;
2138	PBUSLOGICTASKSTATE pTaskState = (PBUSLOGICTASKSTATE)pSCSIRequest->pvUser;
2139	PBUSLOGICDEVICE pBusLogicDevice = pTaskState->CTX_SUFF(pTargetDevice);
2140	PBUSLOGIC pBusLogic = pBusLogicDevice->CTX_SUFF(pBusLogic);
2141
2142	LogFlowFunc(("before decrement %u\n", pBusLogicDevice->cOutstandingRequests));
2143	ASMAtomicDecU32(&pBusLogicDevice->cOutstandingRequests);
2144	LogFlowFunc(("after decrement %u\n", pBusLogicDevice->cOutstandingRequests));
2145
2146	if (fRedo)
2147	{
2148	if (!pTaskState->fBIOS)
2149	{
2150	buslogicDataBufferFree(pTaskState);
2151
2152	if (pTaskState->pbSenseBuffer)
2153	buslogicSenseBufferFree(pTaskState, false /* fCopy */);
2154	}
2155
2156	/* Add to the list. */
2157	do
2158	{
2159	pTaskState->pRedoNext = ASMAtomicReadPtrT(&pBusLogic->pTasksRedoHead, PBUSLOGICTASKSTATE);
2160	} while (!ASMAtomicCmpXchgPtr(&pBusLogic->pTasksRedoHead, pTaskState, pTaskState->pRedoNext));
2161
2162	/* Suspend the VM if not done already. */
2163	if (!ASMAtomicXchgBool(&pBusLogic->fRedo, true))
2164	buslogicRedoSetWarning(pBusLogic, rcReq);
2165	}
2166	else
2167	{
2168	if (pTaskState->fBIOS)
2169	{
2170	rc = vboxscsiRequestFinished(&pBusLogic->VBoxSCSI, pSCSIRequest);
2171	AssertMsgRC(rc, ("Finishing BIOS SCSI request failed rc=%Rrc\n", rc));
2172	}
2173	else
2174	{
2175	buslogicDataBufferFree(pTaskState);
2176
2177	if (pTaskState->pbSenseBuffer)
2178	buslogicSenseBufferFree(pTaskState, (rcCompletion != SCSI_STATUS_OK));
2179
2180	if (rcCompletion == SCSI_STATUS_OK)
2181	buslogicSendIncomingMailbox(pBusLogic, pTaskState,
2182	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_CMD_COMPLETED,
2183	BUSLOGIC_MAILBOX_INCOMING_DEVICE_STATUS_OPERATION_GOOD,
2184	BUSLOGIC_MAILBOX_INCOMING_COMPLETION_WITHOUT_ERROR);
2185	else if (rcCompletion == SCSI_STATUS_CHECK_CONDITION)
2186	buslogicSendIncomingMailbox(pBusLogic, pTaskState,
2187	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_CMD_COMPLETED,
2188	BUSLOGIC_MAILBOX_INCOMING_DEVICE_STATUS_CHECK_CONDITION,
2189	BUSLOGIC_MAILBOX_INCOMING_COMPLETION_WITH_ERROR);
2190	else
2191	AssertMsgFailed(("invalid completion status %d\n", rcCompletion));
2192	}
2193
2194	/* Add task to the cache. */
2195	RTMemCacheFree(pBusLogic->hTaskCache, pTaskState);
2196	}
2197
2198	if (pBusLogicDevice->cOutstandingRequests == 0 && pBusLogic->fSignalIdle)
2199	PDMDevHlpAsyncNotificationCompleted(pBusLogic->pDevInsR3);
2200
2201	return VINF_SUCCESS;
2202	}
2203
2204	static DECLCALLBACK(int) buslogicQueryDeviceLocation(PPDMISCSIPORT pInterface, const char **ppcszController,
2205	uint32_t piInstance, uint32_t piLUN)
2206	{
2207	PBUSLOGICDEVICE pBusLogicDevice = PDMISCSIPORT_2_PBUSLOGICDEVICE(pInterface);
2208	PPDMDEVINS pDevIns = pBusLogicDevice->CTX_SUFF(pBusLogic)->CTX_SUFF(pDevIns);
2209
2210	AssertPtrReturn(ppcszController, VERR_INVALID_POINTER);
2211	AssertPtrReturn(piInstance, VERR_INVALID_POINTER);
2212	AssertPtrReturn(piLUN, VERR_INVALID_POINTER);
2213
2214	*ppcszController = pDevIns->pReg->szName;
2215	*piInstance = pDevIns->iInstance;
2216	*piLUN = pBusLogicDevice->iLUN;
2217
2218	return VINF_SUCCESS;
2219	}
2220
2221	static int buslogicDeviceSCSIRequestSetup(PBUSLOGIC pBusLogic, PBUSLOGICTASKSTATE pTaskState)
2222	{
2223	int rc = VINF_SUCCESS;
2224
2225	/* Fetch CCB. */
2226	RTGCPHYS GCPhysAddrCCB = (RTGCPHYS)pTaskState->MailboxGuest.u32PhysAddrCCB;
2227	PDMDevHlpPhysRead(pBusLogic->CTX_SUFF(pDevIns), GCPhysAddrCCB,
2228	&pTaskState->CommandControlBlockGuest, sizeof(CommandControlBlock));
2229
2230	PBUSLOGICDEVICE pTargetDevice = &pBusLogic->aDeviceStates[pTaskState->CommandControlBlockGuest.uTargetId];
2231	pTaskState->CTX_SUFF(pTargetDevice) = pTargetDevice;
2232
2233	#ifdef DEBUG
2234	buslogicDumpCCBInfo(&pTaskState->CommandControlBlockGuest);
2235	#endif
2236
2237	/* Alloc required buffers. */
2238	rc = buslogicDataBufferAlloc(pTaskState);
2239	AssertMsgRC(rc, ("Alloc failed rc=%Rrc\n", rc));
2240
2241	if (pTaskState->CommandControlBlockGuest.cbSenseData)
2242	{
2243	rc = buslogicSenseBufferAlloc(pTaskState);
2244	AssertMsgRC(rc, ("Mapping sense buffer failed rc=%Rrc\n", rc));
2245	}
2246
2247	/* Check if device is present on bus. If not return error immediately and don't process this further. */
2248	if (!pBusLogic->aDeviceStates[pTaskState->CommandControlBlockGuest.uTargetId].fPresent)
2249	{
2250	buslogicDataBufferFree(pTaskState);
2251
2252	if (pTaskState->pbSenseBuffer)
2253	buslogicSenseBufferFree(pTaskState, true);
2254
2255	buslogicSendIncomingMailbox(pBusLogic, pTaskState,
2256	BUSLOGIC_MAILBOX_INCOMING_ADAPTER_STATUS_SCSI_SELECTION_TIMEOUT,
2257	BUSLOGIC_MAILBOX_INCOMING_DEVICE_STATUS_OPERATION_GOOD,
2258	BUSLOGIC_MAILBOX_INCOMING_COMPLETION_WITH_ERROR);
2259
2260	RTMemCacheFree(pBusLogic->hTaskCache, pTaskState);
2261	}
2262	else
2263	{
2264	/* Setup SCSI request. */
2265	pTaskState->PDMScsiRequest.uLogicalUnit = pTaskState->CommandControlBlockGuest.uLogicalUnit;
2266
2267	if (pTaskState->CommandControlBlockGuest.uDataDirection == BUSLOGIC_CCB_DIRECTION_UNKNOWN)
2268	pTaskState->PDMScsiRequest.uDataDirection = PDMSCSIREQUESTTXDIR_UNKNOWN;
2269	else if (pTaskState->CommandControlBlockGuest.uDataDirection == BUSLOGIC_CCB_DIRECTION_IN)
2270	pTaskState->PDMScsiRequest.uDataDirection = PDMSCSIREQUESTTXDIR_FROM_DEVICE;
2271	else if (pTaskState->CommandControlBlockGuest.uDataDirection == BUSLOGIC_CCB_DIRECTION_OUT)
2272	pTaskState->PDMScsiRequest.uDataDirection = PDMSCSIREQUESTTXDIR_TO_DEVICE;
2273	else if (pTaskState->CommandControlBlockGuest.uDataDirection == BUSLOGIC_CCB_DIRECTION_NO_DATA)
2274	pTaskState->PDMScsiRequest.uDataDirection = PDMSCSIREQUESTTXDIR_NONE;
2275	else
2276	AssertMsgFailed(("Invalid data direction type %d\n", pTaskState->CommandControlBlockGuest.uDataDirection));
2277
2278	pTaskState->PDMScsiRequest.cbCDB = pTaskState->CommandControlBlockGuest.cbCDB;
2279	pTaskState->PDMScsiRequest.pbCDB = pTaskState->CommandControlBlockGuest.aCDB;
2280	if (pTaskState->DataSeg.cbSeg)
2281	{
2282	pTaskState->PDMScsiRequest.cbScatterGather = pTaskState->DataSeg.cbSeg;
2283	pTaskState->PDMScsiRequest.cScatterGatherEntries = 1;
2284	pTaskState->PDMScsiRequest.paScatterGatherHead = &pTaskState->DataSeg;
2285	}
2286	else
2287	{
2288	pTaskState->PDMScsiRequest.cbScatterGather = 0;
2289	pTaskState->PDMScsiRequest.cScatterGatherEntries = 0;
2290	pTaskState->PDMScsiRequest.paScatterGatherHead = NULL;
2291	}
2292	pTaskState->PDMScsiRequest.cbSenseBuffer = pTaskState->CommandControlBlockGuest.cbSenseData;
2293	pTaskState->PDMScsiRequest.pbSenseBuffer = pTaskState->pbSenseBuffer;
2294	pTaskState->PDMScsiRequest.pvUser = pTaskState;
2295
2296	ASMAtomicIncU32(&pTargetDevice->cOutstandingRequests);
2297	rc = pTargetDevice->pDrvSCSIConnector->pfnSCSIRequestSend(pTargetDevice->pDrvSCSIConnector, &pTaskState->PDMScsiRequest);
2298	AssertMsgRC(rc, ("Sending request to SCSI layer failed rc=%Rrc\n", rc));
2299	}
2300
2301	return rc;
2302	}
2303
2304	/**
2305	* Read mailbox from the guest and execute command.
2306	*
2307	* @returns VBox status code.
2308	* @param pBusLogic Pointer to the BusLogic instance data.
2309	*/
2310	static int buslogicProcessMailboxNext(PBUSLOGIC pBusLogic)
2311	{
2312	PBUSLOGICTASKSTATE pTaskState = NULL;
2313	RTGCPHYS GCPhysAddrMailboxCurrent;
2314	int rc;
2315
2316	rc = RTMemCacheAllocEx(pBusLogic->hTaskCache, (void **)&pTaskState);
2317	AssertMsgReturn(RT_SUCCESS(rc) && (pTaskState != NULL), ("Failed to get task state from cache\n"), rc);
2318
2319	pTaskState->fBIOS = false;
2320
2321	if (!pBusLogic->fStrictRoundRobinMode)
2322	{
2323	/* Search for a filled mailbox - stop if we have scanned all mailboxes. */
2324	uint8_t uMailboxPosCur = pBusLogic->uMailboxOutgoingPositionCurrent;
2325
2326	do
2327	{
2328	/* Fetch mailbox from guest memory. */
2329	GCPhysAddrMailboxCurrent = buslogicOutgoingMailboxGetGCPhys(pBusLogic);
2330
2331	PDMDevHlpPhysRead(pBusLogic->CTX_SUFF(pDevIns), GCPhysAddrMailboxCurrent,
2332	&pTaskState->MailboxGuest, sizeof(Mailbox));
2333
2334	/* Check the next mailbox. */
2335	buslogicOutgoingMailboxAdvance(pBusLogic);
2336	} while ( pTaskState->MailboxGuest.u.out.uActionCode == BUSLOGIC_MAILBOX_OUTGOING_ACTION_FREE
2337	&& uMailboxPosCur != pBusLogic->uMailboxOutgoingPositionCurrent);
2338	}
2339	else
2340	{
2341	/* Fetch mailbox from guest memory. */
2342	GCPhysAddrMailboxCurrent = buslogicOutgoingMailboxGetGCPhys(pBusLogic);
2343
2344	PDMDevHlpPhysRead(pBusLogic->CTX_SUFF(pDevIns), GCPhysAddrMailboxCurrent,
2345	&pTaskState->MailboxGuest, sizeof(Mailbox));
2346	}
2347
2348	/*
2349	* Check if the mailbox is actually loaded.
2350	* It might be possible that the guest notified us without
2351	* a loaded mailbox. Do nothing in that case but leave a
2352	* log entry.
2353	*/
2354	if (pTaskState->MailboxGuest.u.out.uActionCode == BUSLOGIC_MAILBOX_OUTGOING_ACTION_FREE)
2355	{
2356	Log(("No loaded mailbox left\n"));
2357	RTMemCacheFree(pBusLogic->hTaskCache, pTaskState);
2358	return VERR_NO_DATA;
2359	}
2360
2361	LogFlow(("Got loaded mailbox at slot %u, CCB phys %RGp\n", pBusLogic->uMailboxOutgoingPositionCurrent, pTaskState->MailboxGuest.u32PhysAddrCCB));
2362	#ifdef DEBUG
2363	buslogicDumpMailboxInfo(&pTaskState->MailboxGuest, true);
2364	#endif
2365
2366	/* We got the mailbox, mark it as free in the guest. */
2367	uint8_t uActionCode = BUSLOGIC_MAILBOX_OUTGOING_ACTION_FREE;
2368	PDMDevHlpPhysWrite(pBusLogic->CTX_SUFF(pDevIns), GCPhysAddrMailboxCurrent + RT_OFFSETOF(Mailbox, u.out.uActionCode), &uActionCode, sizeof(uActionCode));
2369
2370	if (pTaskState->MailboxGuest.u.out.uActionCode == BUSLOGIC_MAILBOX_OUTGOING_ACTION_START_COMMAND)
2371	rc = buslogicDeviceSCSIRequestSetup(pBusLogic, pTaskState);
2372	else if (pTaskState->MailboxGuest.u.out.uActionCode == BUSLOGIC_MAILBOX_OUTGOING_ACTION_ABORT_COMMAND)
2373	{
2374	AssertMsgFailed(("Not implemented yet\n"));
2375	}
2376	else
2377	AssertMsgFailed(("Invalid outgoing mailbox action code %u\n", pTaskState->MailboxGuest.u.out.uActionCode));
2378
2379	AssertRC(rc);
2380
2381	/* Advance to the next mailbox. */
2382	if (pBusLogic->fStrictRoundRobinMode)
2383	buslogicOutgoingMailboxAdvance(pBusLogic);
2384
2385	return rc;
2386	}
2387
2388	/**
2389	* Transmit queue consumer
2390	* Queue a new async task.
2391	*
2392	* @returns Success indicator.
2393	* If false the item will not be removed and the flushing will stop.
2394	* @param pDevIns The device instance.
2395	* @param pItem The item to consume. Upon return this item will be freed.
2396	*/
2397	static DECLCALLBACK(bool) buslogicNotifyQueueConsumer(PPDMDEVINS pDevIns, PPDMQUEUEITEMCORE pItem)
2398	{
2399	PBUSLOGIC pBusLogic = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2400
2401	/* Reset notification send flag now. */
2402	Assert(pBusLogic->fNotificationSend);
2403	ASMAtomicXchgBool(&pBusLogic->fNotificationSend, false);
2404	ASMAtomicXchgU32(&pBusLogic->cMailboxesReady, 0); /* @todo: Actually not required anymore but to stay compatible with older saved states. */
2405
2406	/* Process mailboxes. */
2407	int rc;
2408	do
2409	{
2410	rc = buslogicProcessMailboxNext(pBusLogic);
2411	AssertMsg(RT_SUCCESS(rc) \|\| rc == VERR_NO_DATA, ("Processing mailbox failed rc=%Rrc\n", rc));
2412	} while (RT_SUCCESS(rc));
2413
2414	return true;
2415	}
2416
2417	/**
2418	* Kicks the controller to process pending tasks after the VM was resumed
2419	* or loaded from a saved state.
2420	*
2421	* @returns nothing.
2422	* @param pThis The BusLogic device instance.
2423	*/
2424	static void buslogicKick(PBUSLOGIC pThis)
2425	{
2426	if (pThis->fRedo)
2427	{
2428	pThis->fRedo = false;
2429	if (pThis->VBoxSCSI.fBusy)
2430	{
2431
2432	/* The BIOS had a request active when we got suspended. Resume it. */
2433	int rc = buslogicPrepareBIOSSCSIRequest(pThis);
2434	AssertRC(rc);
2435	}
2436	else
2437	{
2438	/* Queue all pending tasks again. */
2439	PBUSLOGICTASKSTATE pTaskState = pThis->pTasksRedoHead;
2440
2441	pThis->pTasksRedoHead = NULL;
2442
2443	while (pTaskState)
2444	{
2445	PBUSLOGICTASKSTATE pCur = pTaskState;
2446
2447	int rc = buslogicDeviceSCSIRequestSetup(pThis, pCur);
2448	AssertRC(rc);
2449
2450	pTaskState = pTaskState->pRedoNext;
2451	}
2452	}
2453	}
2454	}
2455
2456	static DECLCALLBACK(int) buslogicLiveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uPass)
2457	{
2458	PBUSLOGIC pThis = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2459
2460	/* Save the device config. */
2461	for (unsigned i = 0; i < RT_ELEMENTS(pThis->aDeviceStates); i++)
2462	SSMR3PutBool(pSSM, pThis->aDeviceStates[i].fPresent);
2463
2464	return VINF_SSM_DONT_CALL_AGAIN;
2465	}
2466
2467	static DECLCALLBACK(int) buslogicSaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
2468	{
2469	PBUSLOGIC pBusLogic = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2470
2471	/* Every device first. */
2472	for (unsigned i = 0; i < RT_ELEMENTS(pBusLogic->aDeviceStates); i++)
2473	{
2474	PBUSLOGICDEVICE pDevice = &pBusLogic->aDeviceStates[i];
2475
2476	AssertMsg(!pDevice->cOutstandingRequests,
2477	("There are still outstanding requests on this device\n"));
2478	SSMR3PutBool(pSSM, pDevice->fPresent);
2479	SSMR3PutU32(pSSM, pDevice->cOutstandingRequests);
2480	}
2481	/* Now the main device state. */
2482	SSMR3PutU8 (pSSM, pBusLogic->regStatus);
2483	SSMR3PutU8 (pSSM, pBusLogic->regInterrupt);
2484	SSMR3PutU8 (pSSM, pBusLogic->regGeometry);
2485	SSMR3PutMem (pSSM, &pBusLogic->LocalRam, sizeof(pBusLogic->LocalRam));
2486	SSMR3PutU8 (pSSM, pBusLogic->uOperationCode);
2487	SSMR3PutMem (pSSM, &pBusLogic->aCommandBuffer, sizeof(pBusLogic->aCommandBuffer));
2488	SSMR3PutU8 (pSSM, pBusLogic->iParameter);
2489	SSMR3PutU8 (pSSM, pBusLogic->cbCommandParametersLeft);
2490	SSMR3PutBool (pSSM, pBusLogic->fUseLocalRam);
2491	SSMR3PutMem (pSSM, pBusLogic->aReplyBuffer, sizeof(pBusLogic->aReplyBuffer));
2492	SSMR3PutU8 (pSSM, pBusLogic->iReply);
2493	SSMR3PutU8 (pSSM, pBusLogic->cbReplyParametersLeft);
2494	SSMR3PutBool (pSSM, pBusLogic->fIRQEnabled);
2495	SSMR3PutBool (pSSM, pBusLogic->fISAEnabled);
2496	SSMR3PutU32 (pSSM, pBusLogic->cMailbox);
2497	SSMR3PutGCPhys(pSSM, pBusLogic->GCPhysAddrMailboxOutgoingBase);
2498	SSMR3PutU32 (pSSM, pBusLogic->uMailboxOutgoingPositionCurrent);
2499	SSMR3PutU32 (pSSM, pBusLogic->cMailboxesReady);
2500	SSMR3PutBool (pSSM, pBusLogic->fNotificationSend);
2501	SSMR3PutGCPhys(pSSM, pBusLogic->GCPhysAddrMailboxIncomingBase);
2502	SSMR3PutU32 (pSSM, pBusLogic->uMailboxIncomingPositionCurrent);
2503	SSMR3PutBool (pSSM, pBusLogic->fStrictRoundRobinMode);
2504	SSMR3PutBool (pSSM, pBusLogic->fExtendedLunCCBFormat);
2505	/* Now the data for the BIOS interface. */
2506	SSMR3PutU8 (pSSM, pBusLogic->VBoxSCSI.regIdentify);
2507	SSMR3PutU8 (pSSM, pBusLogic->VBoxSCSI.uTargetDevice);
2508	SSMR3PutU8 (pSSM, pBusLogic->VBoxSCSI.uTxDir);
2509	SSMR3PutU8 (pSSM, pBusLogic->VBoxSCSI.cbCDB);
2510	SSMR3PutMem (pSSM, pBusLogic->VBoxSCSI.aCDB, sizeof(pBusLogic->VBoxSCSI.aCDB));
2511	SSMR3PutU8 (pSSM, pBusLogic->VBoxSCSI.iCDB);
2512	SSMR3PutU32 (pSSM, pBusLogic->VBoxSCSI.cbBuf);
2513	SSMR3PutU32 (pSSM, pBusLogic->VBoxSCSI.iBuf);
2514	SSMR3PutBool (pSSM, pBusLogic->VBoxSCSI.fBusy);
2515	SSMR3PutU8 (pSSM, pBusLogic->VBoxSCSI.enmState);
2516	if (pBusLogic->VBoxSCSI.cbBuf)
2517	SSMR3PutMem(pSSM, pBusLogic->VBoxSCSI.pBuf, pBusLogic->VBoxSCSI.cbBuf);
2518
2519	/*
2520	* Save the physical addresses of the command control blocks of still pending tasks.
2521	* They are processed again on resume.
2522	*
2523	* The number of pending tasks needs to be determined first.
2524	*/
2525	uint32_t cTasks = 0;
2526
2527	PBUSLOGICTASKSTATE pTaskState = pBusLogic->pTasksRedoHead;
2528	if (pBusLogic->fRedo)
2529	{
2530	while (pTaskState)
2531	{
2532	cTasks++;
2533	pTaskState = pTaskState->pRedoNext;
2534	}
2535	}
2536	SSMR3PutU32(pSSM, cTasks);
2537
2538	/* Write the address of every task now. */
2539	pTaskState = pBusLogic->pTasksRedoHead;
2540	while (pTaskState)
2541	{
2542	SSMR3PutU32(pSSM, pTaskState->MailboxGuest.u32PhysAddrCCB);
2543	pTaskState = pTaskState->pRedoNext;
2544	}
2545
2546	return SSMR3PutU32(pSSM, ~0);
2547	}
2548
2549	static DECLCALLBACK(int) buslogicLoadDone(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
2550	{
2551	PBUSLOGIC pThis = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2552
2553	buslogicKick(pThis);
2554	return VINF_SUCCESS;
2555	}
2556
2557	static DECLCALLBACK(int) buslogicLoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
2558	{
2559	PBUSLOGIC pBusLogic = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2560	int rc = VINF_SUCCESS;
2561
2562	/* We support saved states only from this and older versions. */
2563	if (uVersion > BUSLOGIC_SAVED_STATE_MINOR_VERSION)
2564	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
2565
2566	/* Every device first. */
2567	for (unsigned i = 0; i < RT_ELEMENTS(pBusLogic->aDeviceStates); i++)
2568	{
2569	PBUSLOGICDEVICE pDevice = &pBusLogic->aDeviceStates[i];
2570
2571	AssertMsg(!pDevice->cOutstandingRequests,
2572	("There are still outstanding requests on this device\n"));
2573	bool fPresent;
2574	rc = SSMR3GetBool(pSSM, &fPresent);
2575	AssertRCReturn(rc, rc);
2576	if (pDevice->fPresent != fPresent)
2577	return SSMR3SetCfgError(pSSM, RT_SRC_POS, N_("Target %u config mismatch: config=%RTbool state=%RTbool"), i, pDevice->fPresent, fPresent);
2578
2579	if (uPass == SSM_PASS_FINAL)
2580	SSMR3GetU32(pSSM, (uint32_t *)&pDevice->cOutstandingRequests);
2581	}
2582
2583	if (uPass != SSM_PASS_FINAL)
2584	return VINF_SUCCESS;
2585
2586	/* Now the main device state. */
2587	SSMR3GetU8 (pSSM, (uint8_t *)&pBusLogic->regStatus);
2588	SSMR3GetU8 (pSSM, (uint8_t *)&pBusLogic->regInterrupt);
2589	SSMR3GetU8 (pSSM, (uint8_t *)&pBusLogic->regGeometry);
2590	SSMR3GetMem (pSSM, &pBusLogic->LocalRam, sizeof(pBusLogic->LocalRam));
2591	SSMR3GetU8 (pSSM, &pBusLogic->uOperationCode);
2592	SSMR3GetMem (pSSM, &pBusLogic->aCommandBuffer, sizeof(pBusLogic->aCommandBuffer));
2593	SSMR3GetU8 (pSSM, &pBusLogic->iParameter);
2594	SSMR3GetU8 (pSSM, &pBusLogic->cbCommandParametersLeft);
2595	SSMR3GetBool (pSSM, &pBusLogic->fUseLocalRam);
2596	SSMR3GetMem (pSSM, pBusLogic->aReplyBuffer, sizeof(pBusLogic->aReplyBuffer));
2597	SSMR3GetU8 (pSSM, &pBusLogic->iReply);
2598	SSMR3GetU8 (pSSM, &pBusLogic->cbReplyParametersLeft);
2599	SSMR3GetBool (pSSM, &pBusLogic->fIRQEnabled);
2600	SSMR3GetBool (pSSM, &pBusLogic->fISAEnabled);
2601	SSMR3GetU32 (pSSM, &pBusLogic->cMailbox);
2602	SSMR3GetGCPhys(pSSM, &pBusLogic->GCPhysAddrMailboxOutgoingBase);
2603	SSMR3GetU32 (pSSM, &pBusLogic->uMailboxOutgoingPositionCurrent);
2604	SSMR3GetU32 (pSSM, (uint32_t *)&pBusLogic->cMailboxesReady);
2605	SSMR3GetBool (pSSM, (bool *)&pBusLogic->fNotificationSend);
2606	SSMR3GetGCPhys(pSSM, &pBusLogic->GCPhysAddrMailboxIncomingBase);
2607	SSMR3GetU32 (pSSM, &pBusLogic->uMailboxIncomingPositionCurrent);
2608	SSMR3GetBool (pSSM, &pBusLogic->fStrictRoundRobinMode);
2609	SSMR3GetBool (pSSM, &pBusLogic->fExtendedLunCCBFormat);
2610	/* Now the data for the BIOS interface. */
2611	SSMR3GetU8 (pSSM, &pBusLogic->VBoxSCSI.regIdentify);
2612	SSMR3GetU8 (pSSM, &pBusLogic->VBoxSCSI.uTargetDevice);
2613	SSMR3GetU8 (pSSM, &pBusLogic->VBoxSCSI.uTxDir);
2614	SSMR3GetU8 (pSSM, &pBusLogic->VBoxSCSI.cbCDB);
2615	SSMR3GetMem (pSSM, pBusLogic->VBoxSCSI.aCDB, sizeof(pBusLogic->VBoxSCSI.aCDB));
2616	SSMR3GetU8 (pSSM, &pBusLogic->VBoxSCSI.iCDB);
2617	SSMR3GetU32 (pSSM, &pBusLogic->VBoxSCSI.cbBuf);
2618	SSMR3GetU32 (pSSM, &pBusLogic->VBoxSCSI.iBuf);
2619	SSMR3GetBool(pSSM, (bool *)&pBusLogic->VBoxSCSI.fBusy);
2620	SSMR3GetU8 (pSSM, (uint8_t *)&pBusLogic->VBoxSCSI.enmState);
2621	if (pBusLogic->VBoxSCSI.cbBuf)
2622	{
2623	pBusLogic->VBoxSCSI.pBuf = (uint8_t *)RTMemAllocZ(pBusLogic->VBoxSCSI.cbBuf);
2624	if (!pBusLogic->VBoxSCSI.pBuf)
2625	{
2626	LogRel(("BusLogic: Out of memory during restore.\n"));
2627	return PDMDEV_SET_ERROR(pDevIns, VERR_NO_MEMORY,
2628	N_("BusLogic: Out of memory during restore\n"));
2629	}
2630	SSMR3GetMem(pSSM, pBusLogic->VBoxSCSI.pBuf, pBusLogic->VBoxSCSI.cbBuf);
2631	}
2632
2633	if (pBusLogic->VBoxSCSI.fBusy)
2634	pBusLogic->fRedo = true;
2635
2636	if (uVersion > BUSLOGIC_SAVED_STATE_MINOR_PRE_ERROR_HANDLING)
2637	{
2638	/* Check if there are pending tasks saved. */
2639	uint32_t cTasks = 0;
2640
2641	SSMR3GetU32(pSSM, &cTasks);
2642
2643	if (cTasks)
2644	pBusLogic->fRedo = true;
2645
2646	for (uint32_t i = 0; i < cTasks; i++)
2647	{
2648	PBUSLOGICTASKSTATE pTaskState = (PBUSLOGICTASKSTATE)RTMemCacheAlloc(pBusLogic->hTaskCache);
2649	if (!pTaskState)
2650	{
2651	rc = VERR_NO_MEMORY;
2652	break;
2653	}
2654
2655	rc = SSMR3GetU32(pSSM, &pTaskState->MailboxGuest.u32PhysAddrCCB);
2656	if (RT_FAILURE(rc))
2657	{
2658	RTMemCacheFree(pBusLogic->hTaskCache, pTaskState);
2659	break;
2660	}
2661
2662	/* Link into the list. */
2663	pTaskState->pRedoNext = pBusLogic->pTasksRedoHead;
2664	pBusLogic->pTasksRedoHead = pTaskState;
2665	}
2666	}
2667
2668	if (RT_SUCCESS(rc))
2669	{
2670	uint32_t u32;
2671	rc = SSMR3GetU32(pSSM, &u32);
2672	if (RT_SUCCESS(rc))
2673	AssertMsgReturn(u32 == ~0U, ("%#x\n", u32), VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
2674	}
2675
2676	return rc;
2677	}
2678
2679	/**
2680	* Gets the pointer to the status LED of a device - called from the SCSi driver.
2681	*
2682	* @returns VBox status code.
2683	* @param pInterface Pointer to the interface structure containing the called function pointer.
2684	* @param iLUN The unit which status LED we desire. Always 0 here as the driver
2685	* doesn't know about other LUN's.
2686	* @param ppLed Where to store the LED pointer.
2687	*/
2688	static DECLCALLBACK(int) buslogicDeviceQueryStatusLed(PPDMILEDPORTS pInterface, unsigned iLUN, PPDMLED *ppLed)
2689	{
2690	PBUSLOGICDEVICE pDevice = PDMILEDPORTS_2_PBUSLOGICDEVICE(pInterface);
2691	if (iLUN == 0)
2692	{
2693	*ppLed = &pDevice->Led;
2694	Assert((*ppLed)->u32Magic == PDMLED_MAGIC);
2695	return VINF_SUCCESS;
2696	}
2697	return VERR_PDM_LUN_NOT_FOUND;
2698	}
2699
2700	/**
2701	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
2702	*/
2703	static DECLCALLBACK(void ) buslogicDeviceQueryInterface(PPDMIBASE pInterface, const char pszIID)
2704	{
2705	PBUSLOGICDEVICE pDevice = PDMIBASE_2_PBUSLOGICDEVICE(pInterface);
2706	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDevice->IBase);
2707	PDMIBASE_RETURN_INTERFACE(pszIID, PDMISCSIPORT, &pDevice->ISCSIPort);
2708	PDMIBASE_RETURN_INTERFACE(pszIID, PDMILEDPORTS, &pDevice->ILed);
2709	return NULL;
2710	}
2711
2712	/**
2713	* Gets the pointer to the status LED of a unit.
2714	*
2715	* @returns VBox status code.
2716	* @param pInterface Pointer to the interface structure containing the called function pointer.
2717	* @param iLUN The unit which status LED we desire.
2718	* @param ppLed Where to store the LED pointer.
2719	*/
2720	static DECLCALLBACK(int) buslogicStatusQueryStatusLed(PPDMILEDPORTS pInterface, unsigned iLUN, PPDMLED *ppLed)
2721	{
2722	PBUSLOGIC pBusLogic = PDMILEDPORTS_2_PBUSLOGIC(pInterface);
2723	if (iLUN < BUSLOGIC_MAX_DEVICES)
2724	{
2725	*ppLed = &pBusLogic->aDeviceStates[iLUN].Led;
2726	Assert((*ppLed)->u32Magic == PDMLED_MAGIC);
2727	return VINF_SUCCESS;
2728	}
2729	return VERR_PDM_LUN_NOT_FOUND;
2730	}
2731
2732	/**
2733	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
2734	*/
2735	static DECLCALLBACK(void ) buslogicStatusQueryInterface(PPDMIBASE pInterface, const char pszIID)
2736	{
2737	PBUSLOGIC pThis = PDMIBASE_2_PBUSLOGIC(pInterface);
2738	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pThis->IBase);
2739	PDMIBASE_RETURN_INTERFACE(pszIID, PDMILEDPORTS, &pThis->ILeds);
2740	return NULL;
2741	}
2742
2743	/* -=-=-=-=- Helper -=-=-=-=- */
2744
2745	/**
2746	* Checks if all asynchronous I/O is finished.
2747	*
2748	* Used by buslogicReset, buslogicSuspend and buslogicPowerOff.
2749	*
2750	* @returns true if quiesced, false if busy.
2751	* @param pDevIns The device instance.
2752	*/
2753	static bool buslogicR3AllAsyncIOIsFinished(PPDMDEVINS pDevIns)
2754	{
2755	PBUSLOGIC pThis = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2756
2757	for (uint32_t i = 0; i < RT_ELEMENTS(pThis->aDeviceStates); i++)
2758	{
2759	PBUSLOGICDEVICE pThisDevice = &pThis->aDeviceStates[i];
2760	if (pThisDevice->pDrvBase)
2761	{
2762	if (pThisDevice->cOutstandingRequests != 0)
2763	return false;
2764	}
2765	}
2766
2767	return true;
2768	}
2769
2770	/**
2771	* Callback employed by buslogicR3Suspend and buslogicR3PowerOff..
2772	*
2773	* @returns true if we've quiesced, false if we're still working.
2774	* @param pDevIns The device instance.
2775	*/
2776	static DECLCALLBACK(bool) buslogicR3IsAsyncSuspendOrPowerOffDone(PPDMDEVINS pDevIns)
2777	{
2778	if (!buslogicR3AllAsyncIOIsFinished(pDevIns))
2779	return false;
2780
2781	PBUSLOGIC pThis = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2782	ASMAtomicWriteBool(&pThis->fSignalIdle, false);
2783	return true;
2784	}
2785
2786	/**
2787	* Common worker for ahciR3Suspend and ahciR3PowerOff.
2788	*/
2789	static void buslogicR3SuspendOrPowerOff(PPDMDEVINS pDevIns, bool fPowerOff)
2790	{
2791	PBUSLOGIC pThis = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2792
2793	ASMAtomicWriteBool(&pThis->fSignalIdle, true);
2794	if (!buslogicR3AllAsyncIOIsFinished(pDevIns))
2795	PDMDevHlpSetAsyncNotification(pDevIns, buslogicR3IsAsyncSuspendOrPowerOffDone);
2796	else
2797	{
2798	ASMAtomicWriteBool(&pThis->fSignalIdle, false);
2799
2800	AssertMsg(!pThis->fNotificationSend, ("The PDM Queue should be empty at this point\n"));
2801
2802	if (pThis->fRedo)
2803	{
2804	if (fPowerOff)
2805	{
2806	/* Free tasks which would have been queued again on resume. */
2807	PBUSLOGICTASKSTATE pTaskState = pThis->pTasksRedoHead;
2808
2809	pThis->pTasksRedoHead = NULL;
2810
2811	while (pTaskState)
2812	{
2813	PBUSLOGICTASKSTATE pFree;
2814
2815	pFree = pTaskState;
2816	pTaskState = pTaskState->pRedoNext;
2817
2818	RTMemCacheFree(pThis->hTaskCache, pFree);
2819	}
2820	pThis->fRedo = false;
2821	}
2822	else if (pThis->VBoxSCSI.fBusy)
2823	{
2824	/* Destroy the task because the BIOS interface has all necessary information. */
2825	Assert(pThis->pTasksRedoHead->fBIOS);
2826	Assert(!pThis->pTasksRedoHead->pRedoNext);
2827
2828	RTMemCacheFree(pThis->hTaskCache, pThis->pTasksRedoHead);
2829	pThis->pTasksRedoHead = NULL;
2830	}
2831	}
2832	}
2833	}
2834
2835	/**
2836	* Suspend notification.
2837	*
2838	* @param pDevIns The device instance data.
2839	*/
2840	static DECLCALLBACK(void) buslogicSuspend(PPDMDEVINS pDevIns)
2841	{
2842	Log(("buslogicSuspend\n"));
2843	buslogicR3SuspendOrPowerOff(pDevIns, false /* fPoweroff */);
2844	}
2845
2846	/**
2847	* Resume notification.
2848	*
2849	* @param pDevIns The device instance data.
2850	*/
2851	static DECLCALLBACK(void) buslogicResume(PPDMDEVINS pDevIns)
2852	{
2853	Log(("buslogicResume\n"));
2854	PBUSLOGIC pThis = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2855	buslogicKick(pThis);
2856	}
2857
2858
2859	/**
2860	* Detach notification.
2861	*
2862	* One harddisk at one port has been unplugged.
2863	* The VM is suspended at this point.
2864	*
2865	* @param pDevIns The device instance.
2866	* @param iLUN The logical unit which is being detached.
2867	* @param fFlags Flags, combination of the PDMDEVATT_FLAGS_* \#defines.
2868	*/
2869	static DECLCALLBACK(void) buslogicDetach(PPDMDEVINS pDevIns, unsigned iLUN, uint32_t fFlags)
2870	{
2871	PBUSLOGIC pThis = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2872	PBUSLOGICDEVICE pDevice = &pThis->aDeviceStates[iLUN];
2873
2874	Log(("%s:\n", __FUNCTION__));
2875
2876	AssertMsg(fFlags & PDM_TACH_FLAGS_NOT_HOT_PLUG,
2877	("BusLogic: Device does not support hotplugging\n"));
2878
2879	/*
2880	* Zero some important members.
2881	*/
2882	pDevice->pDrvBase = NULL;
2883	pDevice->fPresent = false;
2884	pDevice->pDrvSCSIConnector = NULL;
2885	}
2886
2887	/**
2888	* Attach command.
2889	*
2890	* This is called when we change block driver.
2891	*
2892	* @returns VBox status code.
2893	* @param pDevIns The device instance.
2894	* @param iLUN The logical unit which is being detached.
2895	* @param fFlags Flags, combination of the PDMDEVATT_FLAGS_* \#defines.
2896	*/
2897	static DECLCALLBACK(int) buslogicAttach(PPDMDEVINS pDevIns, unsigned iLUN, uint32_t fFlags)
2898	{
2899	PBUSLOGIC pThis = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2900	PBUSLOGICDEVICE pDevice = &pThis->aDeviceStates[iLUN];
2901	int rc;
2902
2903	AssertMsgReturn(fFlags & PDM_TACH_FLAGS_NOT_HOT_PLUG,
2904	("BusLogic: Device does not support hotplugging\n"),
2905	VERR_INVALID_PARAMETER);
2906
2907	/* the usual paranoia */
2908	AssertRelease(!pDevice->pDrvBase);
2909	AssertRelease(!pDevice->pDrvSCSIConnector);
2910	Assert(pDevice->iLUN == iLUN);
2911
2912	/*
2913	* Try attach the block device and get the interfaces,
2914	* required as well as optional.
2915	*/
2916	rc = PDMDevHlpDriverAttach(pDevIns, pDevice->iLUN, &pDevice->IBase, &pDevice->pDrvBase, NULL);
2917	if (RT_SUCCESS(rc))
2918	{
2919	/* Get SCSI connector interface. */
2920	pDevice->pDrvSCSIConnector = PDMIBASE_QUERY_INTERFACE(pDevice->pDrvBase, PDMISCSICONNECTOR);
2921	AssertMsgReturn(pDevice->pDrvSCSIConnector, ("Missing SCSI interface below\n"), VERR_PDM_MISSING_INTERFACE);
2922	pDevice->fPresent = true;
2923	}
2924	else
2925	AssertMsgFailed(("Failed to attach LUN#%d. rc=%Rrc\n", pDevice->iLUN, rc));
2926
2927	if (RT_FAILURE(rc))
2928	{
2929	pDevice->pDrvBase = NULL;
2930	pDevice->pDrvSCSIConnector = NULL;
2931	}
2932	return rc;
2933	}
2934
2935	/**
2936	* Callback employed by buslogicR3Reset.
2937	*
2938	* @returns true if we've quiesced, false if we're still working.
2939	* @param pDevIns The device instance.
2940	*/
2941	static DECLCALLBACK(bool) buslogicR3IsAsyncResetDone(PPDMDEVINS pDevIns)
2942	{
2943	PBUSLOGIC pThis = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2944
2945	if (!buslogicR3AllAsyncIOIsFinished(pDevIns))
2946	return false;
2947	ASMAtomicWriteBool(&pThis->fSignalIdle, false);
2948
2949	buslogicHwReset(pThis);
2950	return true;
2951	}
2952
2953	/**
2954	* @copydoc FNPDMDEVRESET
2955	*/
2956	static DECLCALLBACK(void) buslogicReset(PPDMDEVINS pDevIns)
2957	{
2958	PBUSLOGIC pThis = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2959
2960	ASMAtomicWriteBool(&pThis->fSignalIdle, true);
2961	if (!buslogicR3AllAsyncIOIsFinished(pDevIns))
2962	PDMDevHlpSetAsyncNotification(pDevIns, buslogicR3IsAsyncResetDone);
2963	else
2964	{
2965	ASMAtomicWriteBool(&pThis->fSignalIdle, false);
2966	buslogicHwReset(pThis);
2967	}
2968	}
2969
2970	static DECLCALLBACK(void) buslogicRelocate(PPDMDEVINS pDevIns, RTGCINTPTR offDelta)
2971	{
2972	uint32_t i;
2973	PBUSLOGIC pBusLogic = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
2974
2975	pBusLogic->pDevInsRC = PDMDEVINS_2_RCPTR(pDevIns);
2976	pBusLogic->pNotifierQueueRC = PDMQueueRCPtr(pBusLogic->pNotifierQueueR3);
2977
2978	for (i = 0; i < BUSLOGIC_MAX_DEVICES; i++)
2979	{
2980	PBUSLOGICDEVICE pDevice = &pBusLogic->aDeviceStates[i];
2981
2982	pDevice->pBusLogicRC = PDMINS_2_DATA_RCPTR(pDevIns);
2983	}
2984
2985	}
2986
2987	/**
2988	* Poweroff notification.
2989	*
2990	* @param pDevIns Pointer to the device instance
2991	*/
2992	static DECLCALLBACK(void) buslogicPowerOff(PPDMDEVINS pDevIns)
2993	{
2994	Log(("buslogicPowerOff\n"));
2995	buslogicR3SuspendOrPowerOff(pDevIns, true /* fPoweroff */);
2996	}
2997
2998	/**
2999	* Destroy a driver instance.
3000	*
3001	* Most VM resources are freed by the VM. This callback is provided so that any non-VM
3002	* resources can be freed correctly.
3003	*
3004	* @param pDevIns The device instance data.
3005	*/
3006	static DECLCALLBACK(int) buslogicDestruct(PPDMDEVINS pDevIns)
3007	{
3008	PBUSLOGIC pThis = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
3009	PDMDEV_CHECK_VERSIONS_RETURN_QUIET(pDevIns);
3010
3011	PDMR3CritSectDelete(&pThis->CritSectIntr);
3012
3013	/*
3014	* Free all tasks which are still hanging around
3015	* (Power off after the VM was suspended).
3016	*/
3017	if (pThis->fRedo)
3018	{
3019	/* Free tasks which would have been queued again on resume. */
3020	PBUSLOGICTASKSTATE pTaskState = pThis->pTasksRedoHead;
3021
3022	pThis->pTasksRedoHead = NULL;
3023
3024	while (pTaskState)
3025	{
3026	PBUSLOGICTASKSTATE pFree;
3027
3028	pFree = pTaskState;
3029	pTaskState = pTaskState->pRedoNext;
3030
3031	RTMemCacheFree(pThis->hTaskCache, pFree);
3032	}
3033	pThis->fRedo = false;
3034	}
3035
3036	int rc = RTMemCacheDestroy(pThis->hTaskCache);
3037	AssertMsgRC(rc, ("Destroying task cache failed rc=%Rrc\n", rc));
3038
3039	return rc;
3040	}
3041
3042	/**
3043	* @interface_method_impl{PDMDEVREG,pfnConstruct}
3044	*/
3045	static DECLCALLBACK(int) buslogicConstruct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
3046	{
3047	PBUSLOGIC pThis = PDMINS_2_DATA(pDevIns, PBUSLOGIC);
3048	int rc = VINF_SUCCESS;
3049	bool fBootable = true;
3050	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
3051
3052	/*
3053	* Validate and read configuration.
3054	*/
3055	if (!CFGMR3AreValuesValid(pCfg,
3056	"GCEnabled\0"
3057	"R0Enabled\0"
3058	"Bootable\0"))
3059	return PDMDEV_SET_ERROR(pDevIns, VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES,
3060	N_("BusLogic configuration error: unknown option specified"));
3061
3062	rc = CFGMR3QueryBoolDef(pCfg, "GCEnabled", &pThis->fGCEnabled, true);
3063	if (RT_FAILURE(rc))
3064	return PDMDEV_SET_ERROR(pDevIns, rc,
3065	N_("BusLogic configuration error: failed to read GCEnabled as boolean"));
3066	Log(("%s: fGCEnabled=%d\n", __FUNCTION__, pThis->fGCEnabled));
3067
3068	rc = CFGMR3QueryBoolDef(pCfg, "R0Enabled", &pThis->fR0Enabled, true);
3069	if (RT_FAILURE(rc))
3070	return PDMDEV_SET_ERROR(pDevIns, rc,
3071	N_("BusLogic configuration error: failed to read R0Enabled as boolean"));
3072	Log(("%s: fR0Enabled=%d\n", __FUNCTION__, pThis->fR0Enabled));
3073	rc = CFGMR3QueryBoolDef(pCfg, "Bootable", &fBootable, true);
3074	if (RT_FAILURE(rc))
3075	return PDMDEV_SET_ERROR(pDevIns, rc,
3076	N_("BusLogic configuration error: failed to read Bootable as boolean"));
3077	Log(("%s: fBootable=%RTbool\n", __FUNCTION__, fBootable));
3078
3079	pThis->pDevInsR3 = pDevIns;
3080	pThis->pDevInsR0 = PDMDEVINS_2_R0PTR(pDevIns);
3081	pThis->pDevInsRC = PDMDEVINS_2_RCPTR(pDevIns);
3082	pThis->IBase.pfnQueryInterface = buslogicStatusQueryInterface;
3083	pThis->ILeds.pfnQueryStatusLed = buslogicStatusQueryStatusLed;
3084
3085	PCIDevSetVendorId (&pThis->dev, 0x104b); /* BusLogic */
3086	PCIDevSetDeviceId (&pThis->dev, 0x1040); /* BT-958 */
3087	PCIDevSetCommand (&pThis->dev, 0x0003);
3088	PCIDevSetRevisionId (&pThis->dev, 0x01);
3089	PCIDevSetClassProg (&pThis->dev, 0x00); /* SCSI */
3090	PCIDevSetClassSub (&pThis->dev, 0x00); /* SCSI */
3091	PCIDevSetClassBase (&pThis->dev, 0x01); /* Mass storage */
3092	PCIDevSetBaseAddress (&pThis->dev, 0, true /IO/, false /Pref/, false /64-bit/, 0x00000000);
3093	PCIDevSetBaseAddress (&pThis->dev, 1, false /IO/, false /Pref/, false /64-bit/, 0x00000000);
3094	PCIDevSetSubSystemVendorId(&pThis->dev, 0x104b);
3095	PCIDevSetSubSystemId (&pThis->dev, 0x1040);
3096	PCIDevSetInterruptLine (&pThis->dev, 0x00);
3097	PCIDevSetInterruptPin (&pThis->dev, 0x01);
3098
3099	/*
3100	* Register the PCI device, it's I/O regions.
3101	*/
3102	rc = PDMDevHlpPCIRegister (pDevIns, &pThis->dev);
3103	if (RT_FAILURE(rc))
3104	return rc;
3105
3106	rc = PDMDevHlpPCIIORegionRegister(pDevIns, 0, 32, PCI_ADDRESS_SPACE_IO, buslogicMMIOMap);
3107	if (RT_FAILURE(rc))
3108	return rc;
3109
3110	rc = PDMDevHlpPCIIORegionRegister(pDevIns, 1, 32, PCI_ADDRESS_SPACE_MEM, buslogicMMIOMap);
3111	if (RT_FAILURE(rc))
3112	return rc;
3113
3114	if (fBootable)
3115	{
3116	/* Register I/O port space in ISA region for BIOS access. */
3117	rc = PDMDevHlpIOPortRegister(pDevIns, BUSLOGIC_BIOS_IO_PORT, 3, NULL,
3118	buslogicIsaIOPortWrite, buslogicIsaIOPortRead,
3119	buslogicIsaIOPortWriteStr, buslogicIsaIOPortReadStr,
3120	"BusLogic BIOS");
3121	if (RT_FAILURE(rc))
3122	return PDMDEV_SET_ERROR(pDevIns, rc, N_("BusLogic cannot register legacy I/O handlers"));
3123	}
3124
3125	/* Initialize task cache. */
3126	rc = RTMemCacheCreate(&pThis->hTaskCache, sizeof(BUSLOGICTASKSTATE), 0, UINT32_MAX,
3127	NULL, NULL, NULL, 0);
3128	if (RT_FAILURE(rc))
3129	return PDMDEV_SET_ERROR(pDevIns, rc,
3130	N_("BusLogic: Failed to initialize task cache\n"));
3131
3132	/* Initialize task queue. */
3133	rc = PDMDevHlpQueueCreate(pDevIns, sizeof(PDMQUEUEITEMCORE), 5, 0,
3134	buslogicNotifyQueueConsumer, true, "BusLogicTask", &pThis->pNotifierQueueR3);
3135	if (RT_FAILURE(rc))
3136	return rc;
3137	pThis->pNotifierQueueR0 = PDMQueueR0Ptr(pThis->pNotifierQueueR3);
3138	pThis->pNotifierQueueRC = PDMQueueRCPtr(pThis->pNotifierQueueR3);
3139
3140	rc = PDMDevHlpCritSectInit(pDevIns, &pThis->CritSectIntr, RT_SRC_POS, "BusLogic-Intr#%u", pDevIns->iInstance);
3141	if (RT_FAILURE(rc))
3142	return PDMDEV_SET_ERROR(pDevIns, rc,
3143	N_("BusLogic: cannot create critical section"));
3144
3145	/* Initialize per device state. */
3146	for (unsigned i = 0; i < RT_ELEMENTS(pThis->aDeviceStates); i++)
3147	{
3148	char szName[24];
3149	PBUSLOGICDEVICE pDevice = &pThis->aDeviceStates[i];
3150
3151	RTStrPrintf(szName, sizeof(szName), "Device%d", i);
3152
3153	/* Initialize static parts of the device. */
3154	pDevice->iLUN = i;
3155	pDevice->pBusLogicR3 = pThis;
3156	pDevice->pBusLogicR0 = PDMINS_2_DATA_R0PTR(pDevIns);
3157	pDevice->pBusLogicRC = PDMINS_2_DATA_RCPTR(pDevIns);
3158	pDevice->Led.u32Magic = PDMLED_MAGIC;
3159	pDevice->IBase.pfnQueryInterface = buslogicDeviceQueryInterface;
3160	pDevice->ISCSIPort.pfnSCSIRequestCompleted = buslogicDeviceSCSIRequestCompleted;
3161	pDevice->ISCSIPort.pfnQueryDeviceLocation = buslogicQueryDeviceLocation;
3162	pDevice->ILed.pfnQueryStatusLed = buslogicDeviceQueryStatusLed;
3163
3164	/* Attach SCSI driver. */
3165	rc = PDMDevHlpDriverAttach(pDevIns, pDevice->iLUN, &pDevice->IBase, &pDevice->pDrvBase, szName);
3166	if (RT_SUCCESS(rc))
3167	{
3168	/* Get SCSI connector interface. */
3169	pDevice->pDrvSCSIConnector = PDMIBASE_QUERY_INTERFACE(pDevice->pDrvBase, PDMISCSICONNECTOR);
3170	AssertMsgReturn(pDevice->pDrvSCSIConnector, ("Missing SCSI interface below\n"), VERR_PDM_MISSING_INTERFACE);
3171
3172	pDevice->fPresent = true;
3173	}
3174	else if (rc == VERR_PDM_NO_ATTACHED_DRIVER)
3175	{
3176	pDevice->pDrvBase = NULL;
3177	pDevice->fPresent = false;
3178	rc = VINF_SUCCESS;
3179	Log(("BusLogic: no driver attached to device %s\n", szName));
3180	}
3181	else
3182	{
3183	AssertLogRelMsgFailed(("BusLogic: Failed to attach %s\n", szName));
3184	return rc;
3185	}
3186	}
3187
3188	/*
3189	* Attach status driver (optional).
3190	*/
3191	PPDMIBASE pBase;
3192	rc = PDMDevHlpDriverAttach(pDevIns, PDM_STATUS_LUN, &pThis->IBase, &pBase, "Status Port");
3193	if (RT_SUCCESS(rc))
3194	pThis->pLedsConnector = PDMIBASE_QUERY_INTERFACE(pBase, PDMILEDCONNECTORS);
3195	else if (rc != VERR_PDM_NO_ATTACHED_DRIVER)
3196	{
3197	AssertMsgFailed(("Failed to attach to status driver. rc=%Rrc\n", rc));
3198	return PDMDEV_SET_ERROR(pDevIns, rc, N_("BusLogic cannot attach to status driver"));
3199	}
3200
3201	rc = PDMDevHlpSSMRegisterEx(pDevIns, BUSLOGIC_SAVED_STATE_MINOR_VERSION, sizeof(*pThis), NULL,
3202	NULL, buslogicLiveExec, NULL,
3203	NULL, buslogicSaveExec, NULL,
3204	NULL, buslogicLoadExec, buslogicLoadDone);
3205	if (RT_FAILURE(rc))
3206	return PDMDEV_SET_ERROR(pDevIns, rc, N_("BusLogic cannot register save state handlers"));
3207
3208	rc = buslogicHwReset(pThis);
3209	AssertMsgRC(rc, ("hardware reset of BusLogic host adapter failed rc=%Rrc\n", rc));
3210
3211	return rc;
3212	}
3213
3214	/**
3215	* The device registration structure.
3216	*/
3217	const PDMDEVREG g_DeviceBusLogic =
3218	{
3219	/* u32Version */
3220	PDM_DEVREG_VERSION,
3221	/* szName */
3222	"buslogic",
3223	/* szRCMod */
3224	"VBoxDDGC.gc",
3225	/* szR0Mod */
3226	"VBoxDDR0.r0",
3227	/* pszDescription */
3228	"BusLogic BT-958 SCSI host adapter.\n",
3229	/* fFlags */
3230	PDM_DEVREG_FLAGS_DEFAULT_BITS \| PDM_DEVREG_FLAGS_RC \| PDM_DEVREG_FLAGS_R0 \|
3231	PDM_DEVREG_FLAGS_FIRST_SUSPEND_NOTIFICATION \| PDM_DEVREG_FLAGS_FIRST_POWEROFF_NOTIFICATION,
3232	/* fClass */
3233	PDM_DEVREG_CLASS_STORAGE,
3234	/* cMaxInstances */
3235	~0U,
3236	/* cbInstance */
3237	sizeof(BUSLOGIC),
3238	/* pfnConstruct */
3239	buslogicConstruct,
3240	/* pfnDestruct */
3241	buslogicDestruct,
3242	/* pfnRelocate */
3243	buslogicRelocate,
3244	/* pfnIOCtl */
3245	NULL,
3246	/* pfnPowerOn */
3247	NULL,
3248	/* pfnReset */
3249	buslogicReset,
3250	/* pfnSuspend */
3251	buslogicSuspend,
3252	/* pfnResume */
3253	buslogicResume,
3254	/* pfnAttach */
3255	buslogicAttach,
3256	/* pfnDetach */
3257	buslogicDetach,
3258	/* pfnQueryInterface. */
3259	NULL,
3260	/* pfnInitComplete */
3261	NULL,
3262	/* pfnPowerOff */
3263	buslogicPowerOff,
3264	/* pfnSoftReset */
3265	NULL,
3266	/* u32VersionEnd */
3267	PDM_DEVREG_VERSION
3268	};
3269
3270	#endif /* IN_RING3 */
3271	#endif /* !VBOX_DEVICE_STRUCT_TESTCASE */
3272

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