[apriyadarshi] 71969: Implemented Dpc Routine, managed Srb functions and some code fixes!
19 Jul
2016
19 Jul
'16
4:50 p.m.
Author: apriyadarshi
Date: Tue Jul 19 16:50:59 2016
New Revision: 71969
URL: http://svn.reactos.org/svn/reactos?rev=71969&view=rev
Log:
Implemented Dpc Routine, managed Srb functions and some code fixes!
Modified:
branches/GSoC_2016/AHCI/drivers/storage/storahci/storahci.c
branches/GSoC_2016/AHCI/drivers/storage/storahci/storahci.h
Modified: branches/GSoC_2016/AHCI/drivers/storage/storahci/storahci.c
URL:
http://svn.reactos.org/svn/reactos/branches/GSoC_2016/AHCI/drivers/storage/…
==============================================================================
--- branches/GSoC_2016/AHCI/drivers/storage/storahci/storahci.c [iso-8859-1] (original)
+++ branches/GSoC_2016/AHCI/drivers/storage/storahci/storahci.c [iso-8859-1] Tue Jul 19
16:50:59 2016
@@ -132,6 +132,7 @@
PCHAR nonCachedExtension, tmp;
ULONG index, NCS, AlignedNCS;
ULONG portCount, portImplemented, nonCachedExtensionSize;
+ PAHCI_PORT_EXTENSION PortExtension;
DebugPrint("AhciAllocateResourceForAdapter()\n");
@@ -173,18 +174,21 @@
for (index = 0; index < portCount; index++)
{
- AdapterExtension->PortExtension[index].IsActive = FALSE;
+ PortExtension = &AdapterExtension->PortExtension[index];
+
+ PortExtension->DeviceParams.IsActive = FALSE;
if ((AdapterExtension->PortImplemented & (1 << index)) != 0)
{
- AdapterExtension->PortExtension[index].PortNumber = index;
- AdapterExtension->PortExtension[index].IsActive = TRUE;
- AdapterExtension->PortExtension[index].AdapterExtension =
AdapterExtension;
- AdapterExtension->PortExtension[index].CommandList =
(PAHCI_COMMAND_HEADER)nonCachedExtension;
+ PortExtension->PortNumber = index;
+ PortExtension->DeviceParams.IsActive = TRUE;
+ PortExtension->AdapterExtension = AdapterExtension;
+ PortExtension->CommandList = (PAHCI_COMMAND_HEADER)nonCachedExtension;
tmp = (PCHAR)(nonCachedExtension + sizeof(AHCI_COMMAND_HEADER) *
AlignedNCS);
- AdapterExtension->PortExtension[index].ReceivedFIS =
(PAHCI_RECEIVED_FIS)tmp;
- AdapterExtension->PortExtension[index].IdentifyDeviceData =
(PIDENTIFY_DEVICE_DATA)(tmp + sizeof(AHCI_RECEIVED_FIS));
+ PortExtension->ReceivedFIS = (PAHCI_RECEIVED_FIS)tmp;
+ PortExtension->IdentifyDeviceData = (PIDENTIFY_DEVICE_DATA)(tmp +
sizeof(AHCI_RECEIVED_FIS));
+ PortExtension->MaxPortQueueDepth = NCS;
nonCachedExtension += nonCachedExtensionSize;
}
}
@@ -272,13 +276,6 @@
ssts.Status = StorPortReadRegisterUlong(AdapterExtension,
&PortExtension->Port->SSTS);
switch (ssts.DET)
{
- case 0x0:
- case 0x1:
- case 0x2:
- default:
- // unhandled case
- DebugPrint("\tDET == %x Unsupported\n", ssts.DET);
- return FALSE;
case 0x3:
{
NT_ASSERT(cmd.ST == 0);
@@ -299,6 +296,7 @@
{
// failed to start FIS DMA engine
// it can crash the driver later
+ // so better to turn this port off
return FALSE;
}
@@ -325,30 +323,51 @@
// set IE
ie.Status = StorPortReadRegisterUlong(AdapterExtension,
&PortExtension->Port->IE);
+ /* Device to Host Register FIS Interrupt Enable */
ie.DHRE = 1;
+ /* PIO Setup FIS Interrupt Enable */
ie.PSE = 1;
+ /* DMA Setup FIS Interrupt Enable */
ie.DSE = 1;
+ /* Set Device Bits FIS Interrupt Enable */
ie.SDBE = 1;
-
+ /* Unknown FIS Interrupt Enable */
ie.UFE = 0;
+ /* Descriptor Processed Interrupt Enable */
ie.DPE = 0;
+ /* Port Change Interrupt Enable */
ie.PCE = 1;
-
+ /* Device Mechanical Presence Enable */
ie.DMPE = 0;
-
+ /* PhyRdy Change Interrupt Enable */
ie.PRCE = 1;
+ /* Incorrect Port Multiplier Enable */
ie.IPME = 0;
+ /* Overflow Enable */
ie.OFE = 1;
+ /* Interface Non-fatal Error Enable */
ie.INFE = 1;
+ /* Interface Fatal Error Enable */
ie.IFE = 1;
+ /* Host Bus Data Error Enable */
ie.HBDE = 1;
+ /* Host Bus Fatal Error Enable */
ie.HBFE = 1;
+ /* Task File Error Enable */
ie.TFEE = 1;
cmd.Status = StorPortReadRegisterUlong(AdapterExtension,
&PortExtension->Port->CMD);
- ie.CPDE = cmd.CPD;
-
- StorPortReadRegisterUlong(AdapterExtension,
&PortExtension->Port->IE, ie.Status);
+ /* Cold Presence Detect Enable */
+ if (cmd.CPD) // does it support CPD?
+ {
+ // disable it for now
+ ie.CPDE = 0;
+ }
+
+ // should I replace this to single line?
+ // by directly setting ie.Status?
+
+ StorPortWriteRegisterUlong(AdapterExtension,
&PortExtension->Port->IE, ie.Status);
cmd.ST = 1;
StorPortWriteRegisterUlong(AdapterExtension,
&PortExtension->Port->CMD, cmd.Status);
@@ -362,20 +381,78 @@
return TRUE;
}
- case 0x4:
- // no device found
+ default:
+ // unhandled case
+ DebugPrint("\tDET == %x Unsupported\n", ssts.DET);
return FALSE;
}
- DebugPrint("\tInvalid DET value: %x\n", ssts.DET);
- return FALSE;
}// -- AhciStartPort();
/**
- * @name AhciHwInitialize
- * @implemented
- *
- * initializes the HBA and finds all devices that are of interest to the miniport
driver.
+ * @name AhciCommandCompletionDpcRoutine
+ * @implemented
+ *
+ * Handles Completed Commands
+ *
+ * @param Dpc
+ * @param AdapterExtension
+ * @param SystemArgument1
+ * @param SystemArgument2
+ */
+VOID
+AhciCommandCompletionDpcRoutine (
+ __in PSTOR_DPC Dpc,
+ __in PAHCI_ADAPTER_EXTENSION AdapterExtension,
+ __in PAHCI_PORT_EXTENSION PortExtension,
+ __in PVOID SystemArgument2
+ )
+{
+ PSCSI_REQUEST_BLOCK Srb;
+ STOR_LOCK_HANDLE lockhandle;
+ PAHCI_SRB_EXTENSION SrbExtension;
+ PAHCI_COMPLETION_ROUTINE CompletionRoutine;
+
+ UNREFERENCED_PARAMETER(Dpc);
+ UNREFERENCED_PARAMETER(SystemArgument2);
+
+ DebugPrint("AhciCommandCompletionDpcRoutine()\n");
+
+ AhciZeroMemory(&lockhandle, sizeof(lockhandle));
+
+ StorPortAcquireSpinLock(AdapterExtension, InterruptLock, NULL, &lockhandle);
+ Srb = RemoveQueue(&PortExtension->CompletionQueue);
+
+ NT_ASSERT(Srb != NULL);
+
+ if (Srb->SrbStatus == SRB_STATUS_PENDING)
+ {
+ Srb->SrbStatus = SRB_STATUS_SUCCESS;
+ }
+
+ SrbExtension = GetSrbExtension(Srb);
+ CompletionRoutine = SrbExtension->CompletionRoutine;
+
+ if (CompletionRoutine != NULL)
+ {
+ // now it's completion routine responsibility to set SrbStatus
+ CompletionRoutine(PortExtension, Srb);
+ }
+ else
+ {
+ Srb->SrbStatus = SRB_STATUS_SUCCESS;
+ StorPortNotification(RequestComplete, AdapterExtension, Srb);
+ }
+
+ StorPortReleaseSpinLock(AdapterExtension, &lockhandle);
+ return;
+}// -- AhciCommandCompletionDpcRoutine();
+
+/**
+ * @name AhciHwPassiveInitialize
+ * @implemented
+ *
+ * initializes the HBA and finds all devices that are of interest to the miniport driver.
(at PASSIVE LEVEL)
*
* @param adapterExtension
*
@@ -383,40 +460,65 @@
* return TRUE if intialization was successful
*/
BOOLEAN
+AhciHwPassiveInitialize (
+ __in PAHCI_ADAPTER_EXTENSION AdapterExtension
+ )
+{
+ ULONG index;
+ PAHCI_PORT_EXTENSION PortExtension;
+
+ DebugPrint("AhciHwPassiveInitialize()\n");
+
+ for (index = 0; index < AdapterExtension->PortCount; index++)
+ {
+ if ((AdapterExtension->PortImplemented & (0x1 << index)) != 0)
+ {
+ PortExtension = &AdapterExtension->PortExtension[index];
+ PortExtension->DeviceParams.IsActive = AhciStartPort(PortExtension);
+ StorPortInitializeDpc(AdapterExtension,
&PortExtension->CommandCompletion, AhciCommandCompletionDpcRoutine);
+ }
+ }
+
+ return TRUE;
+}// -- AhciHwPassiveInitialize();
+
+/**
+ * @name AhciHwInitialize
+ * @implemented
+ *
+ * initializes the HBA and finds all devices that are of interest to the miniport
driver.
+ *
+ * @param adapterExtension
+ *
+ * @return
+ * return TRUE if intialization was successful
+ */
+BOOLEAN
AhciHwInitialize (
- __in PVOID AdapterExtension
- )
-{
- ULONG ghc, index;
- PAHCI_PORT_EXTENSION PortExtension;
- PAHCI_ADAPTER_EXTENSION adapterExtension;
+ __in PAHCI_ADAPTER_EXTENSION AdapterExtension
+ )
+{
+ AHCI_GHC ghc;
+ MESSAGE_INTERRUPT_INFORMATION messageInfo;
DebugPrint("AhciHwInitialize()\n");
- adapterExtension = AdapterExtension;
- adapterExtension->StateFlags.MessagePerPort = FALSE;
+ AdapterExtension->StateFlags.MessagePerPort = FALSE;
// First check what type of interrupt/synchronization device is using
- ghc = StorPortReadRegisterUlong(adapterExtension,
&adapterExtension->ABAR_Address->GHC);
+ ghc.Status = StorPortReadRegisterUlong(AdapterExtension,
&AdapterExtension->ABAR_Address->GHC);
// When set to â1â by hardware, indicates that the HBA requested more than one
MSI vector
// but has reverted to using the first vector only. When this bit is cleared to
â0â,
// the HBA has not reverted to single MSI mode (i.e. hardware is already in single
MSI mode,
// software has allocated the number of messages requested
- if ((ghc & AHCI_Global_HBA_CONTROL_MRSM) == 0)
- {
- adapterExtension->StateFlags.MessagePerPort = TRUE;
+ if (ghc.MRSM == 0)
+ {
+ AdapterExtension->StateFlags.MessagePerPort = TRUE;
DebugPrint("\tMultiple MSI based message not supported\n");
}
- for (index = 0; index < adapterExtension->PortCount; index++)
- {
- if ((adapterExtension->PortImplemented & (0x1 << index)) != 0)
- {
- PortExtension = &adapterExtension->PortExtension[index];
- PortExtension->IsActive = AhciStartPort(PortExtension);
- }
- }
+ StorPortEnablePassiveInitialization(AdapterExtension, AhciHwPassiveInitialize);
return TRUE;
}// -- AhciHwInitialize();
@@ -438,9 +540,7 @@
{
ULONG NCS, i;
PSCSI_REQUEST_BLOCK Srb;
- PAHCI_SRB_EXTENSION SrbExtension;
PAHCI_ADAPTER_EXTENSION AdapterExtension;
- PAHCI_COMPLETION_ROUTINE CompletionRoutine;
DebugPrint("AhciCompleteIssuedSrb()\n");
@@ -458,24 +558,8 @@
Srb = PortExtension->Slot[i];
NT_ASSERT(Srb != NULL);
- if (Srb->SrbStatus == SRB_STATUS_PENDING)
- {
- Srb->SrbStatus = SRB_STATUS_SUCCESS;
- }
-
- SrbExtension = GetSrbExtension(Srb);
- CompletionRoutine = SrbExtension->CompletionRoutine;
-
- if (CompletionRoutine != NULL)
- {
- // now it's completion routine responsibility to set SrbStatus
- CompletionRoutine(AdapterExtension, PortExtension, Srb);
- }
- else
- {
- Srb->SrbStatus = SRB_STATUS_SUCCESS;
- StorPortNotification(RequestComplete, AdapterExtension, Srb);
- }
+ AddQueue(&PortExtension->CompletionQueue, Srb);
+ StorPortIssueDpc(AdapterExtension, &PortExtension->CommandCompletion,
PortExtension, Srb);
}
}
@@ -589,23 +673,21 @@
* return FALSE Indicates the interrupt was not ours.
*/
BOOLEAN
-AhciHwInterrupt(
+AhciHwInterrupt (
__in PAHCI_ADAPTER_EXTENSION AdapterExtension
)
{
ULONG portPending, nextPort, i, portCount;
- DebugPrint("AhciHwInterrupt()\n");
-
if (AdapterExtension->StateFlags.Removed)
{
return FALSE;
}
portPending = StorPortReadRegisterUlong(AdapterExtension, AdapterExtension->IS);
+
// we process interrupt for implemented ports only
portCount = AdapterExtension->PortCount;
- DebugPrint("\tPortPending: %d\n", portPending);
portPending = portPending & AdapterExtension->PortImplemented;
if (portPending == 0)
@@ -616,18 +698,12 @@
for (i = 1; i <= portCount; i++)
{
nextPort = (AdapterExtension->LastInterruptPort + i) % portCount;
-
if ((portPending & (0x1 << nextPort)) == 0)
continue;
NT_ASSERT(IsPortValid(AdapterExtension, nextPort));
- if (nextPort == AdapterExtension->LastInterruptPort)
- {
- return FALSE;
- }
-
- if (AdapterExtension->PortExtension[nextPort].IsActive == FALSE)
+ if (AdapterExtension->PortExtension[nextPort].DeviceParams.IsActive == FALSE)
{
continue;
}
@@ -635,6 +711,8 @@
// we can assign this interrupt to this port
AdapterExtension->LastInterruptPort = nextPort;
AhciInterruptHandler(&AdapterExtension->PortExtension[nextPort]);
+
+ portPending &= ~(1 << nextPort);
// interrupt belongs to this device
// should always return TRUE
@@ -672,6 +750,8 @@
pathId = Srb->PathId;
function = Srb->Function;
adapterExtension = AdapterExtension;
+
+ DebugPrint("\tFunction: %x\n", function);
if (!IsPortValid(adapterExtension, pathId))
{
@@ -714,6 +794,7 @@
if (function == SRB_FUNCTION_EXECUTE_SCSI)
{
+ DebugPrint("\tSRB_FUNCTION_EXECUTE_SCSI\n");
//
https://msdn.microsoft.com/en-us/windows/hardware/drivers/storage/handling-…
// On receipt of an SRB_FUNCTION_EXECUTE_SCSI request, a miniport driver's
HwScsiStartIo
// routine does the following:
@@ -732,13 +813,22 @@
if (Srb->CdbLength > 0)
{
PCDB cdb = (PCDB)&Srb->Cdb;
- if (cdb->CDB10.OperationCode == SCSIOP_INQUIRY)
+ NT_ASSERT(cdb != NULL);
+
+ switch(cdb->CDB10.OperationCode)
{
- Srb->SrbStatus = DeviceInquiryRequest(adapterExtension, Srb, cdb);
- }
- else
- {
- Srb->SrbStatus = SRB_STATUS_NO_DEVICE;
+ case SCSIOP_INQUIRY:
+ Srb->SrbStatus = DeviceInquiryRequest(adapterExtension, Srb, cdb,
TRUE);
+ break;
+ case SCSIOP_REPORT_LUNS:
+ Srb->SrbStatus = DeviceInquiryRequest(adapterExtension, Srb, cdb,
FALSE);
+ break;
+ default:
+ {
+ DebugPrint("\tOperationCode: %d\n",
cdb->CDB10.OperationCode);
+ Srb->SrbStatus = SRB_STATUS_NO_DEVICE;
+ }
+ break;
}
}
else
@@ -751,7 +841,7 @@
}
DebugPrint("\tUnknown function code recieved: %x\n", function);
- Srb->SrbStatus = SRB_STATUS_BAD_FUNCTION;
+ Srb->SrbStatus = SRB_STATUS_INVALID_REQUEST;
StorPortNotification(RequestComplete, adapterExtension, Srb);
return TRUE;
}// -- AhciHwStartIo();
@@ -839,9 +929,10 @@
__in PBOOLEAN Reserved3
)
{
- ULONG ghc, index, pci_cfg_len;
+ AHCI_GHC ghc;
+ ULONG index, pci_cfg_len;
+ PACCESS_RANGE accessRange;
UCHAR pci_cfg_buf[sizeof(PCI_COMMON_CONFIG)];
- PACCESS_RANGE accessRange;
PAHCI_MEMORY_REGISTERS abar;
PPCI_COMMON_CONFIG pciConfigData;
@@ -919,9 +1010,9 @@
// 10.1.2
// 1. Indicate that system software is AHCI aware by setting GHC.AE to â1â.
// 3.1.2 -- AE bit is read-write only if CAP.SAM is '0'
- ghc = StorPortReadRegisterUlong(adapterExtension, &abar->GHC);
+ ghc.Status = StorPortReadRegisterUlong(adapterExtension, &abar->GHC);
// AE := Highest Significant bit of GHC
- if ((ghc & AHCI_Global_HBA_CONTROL_AE) != 0)// Hmm, controller was already in
power state
+ if (ghc.AE != 0)// Hmm, controller was already in power state
{
// reset controller to have it in known state
DebugPrint("\tAE Already set, Reset()\n");
@@ -932,9 +1023,10 @@
}
}
- ghc = AHCI_Global_HBA_CONTROL_AE;// only AE=1
+ ghc.Status = 0;
+ ghc.AE = 1;// only AE=1
// tell the controller that we know about AHCI
- StorPortWriteRegisterUlong(adapterExtension, &abar->GHC, ghc);
+ StorPortWriteRegisterUlong(adapterExtension, &abar->GHC, ghc.Status);
adapterExtension->IS = &abar->IS;
adapterExtension->PortImplemented = StorPortReadRegisterUlong(adapterExtension,
&abar->PI);
@@ -954,6 +1046,11 @@
ConfigInfo->SynchronizationModel = StorSynchronizeFullDuplex;
ConfigInfo->ScatterGather = TRUE;
+ // Turn IE -- Interrupt Enabled
+ ghc.Status = StorPortReadRegisterUlong(adapterExtension, &abar->GHC);
+ ghc.IE = 1;
+ StorPortWriteRegisterUlong(adapterExtension, &abar->GHC, ghc.Status);
+
// allocate necessary resource for each port
if (!AhciAllocateResourceForAdapter(adapterExtension, ConfigInfo))
{
@@ -966,11 +1063,6 @@
if ((adapterExtension->PortImplemented & (0x1 << index)) != 0)
AhciPortInitialize(&adapterExtension->PortExtension[index]);
}
-
- // Turn IE -- Interrupt Enabled
- ghc = StorPortReadRegisterUlong(adapterExtension, &abar->GHC);
- ghc |= AHCI_Global_HBA_CONTROL_IE;
- StorPortWriteRegisterUlong(adapterExtension, &abar->GHC, ghc);
return SP_RETURN_FOUND;
}// -- AhciHwFindAdapter();
@@ -1044,8 +1136,10 @@
* @param PortExtension
* @param Srb
*
- */
-VOID
+ * @return
+ * Number of CFIS fields used in DWORD
+ */
+ULONG
AhciATA_CFIS (
__in PAHCI_PORT_EXTENSION PortExtension,
__in PAHCI_SRB_EXTENSION SrbExtension
@@ -1059,12 +1153,10 @@
cmdTable = (PAHCI_COMMAND_TABLE)SrbExtension;
- NT_ASSERT(sizeof(cmdTable->CFIS) == 64);
-
AhciZeroMemory(&cmdTable->CFIS, sizeof(cmdTable->CFIS));
- cmdTable->CFIS[AHCI_ATA_CFIS_FisType] = 0x27; // FIS Type
- cmdTable->CFIS[AHCI_ATA_CFIS_PMPort_C] = (1 << 7); // PM Port & C
+ cmdTable->CFIS[AHCI_ATA_CFIS_FisType] = FIS_TYPE_REG_H2D; // FIS Type
+ cmdTable->CFIS[AHCI_ATA_CFIS_PMPort_C] = (1 << 7); // PM Port
& C
cmdTable->CFIS[AHCI_ATA_CFIS_CommandReg] = SrbExtension->CommandReg;
cmdTable->CFIS[AHCI_ATA_CFIS_FeaturesLow] = SrbExtension->FeaturesLow;
@@ -1079,7 +1171,7 @@
cmdTable->CFIS[AHCI_ATA_CFIS_SectorCountLow] = SrbExtension->SectorCountLow;
cmdTable->CFIS[AHCI_ATA_CFIS_SectorCountHigh] = SrbExtension->SectorCountHigh;
- return;
+ return 5;
}// -- AhciATA_CFIS();
/**
@@ -1091,8 +1183,10 @@
* @param PortExtension
* @param Srb
*
- */
-VOID
+ * @return
+ * Number of CFIS fields used in DWORD
+ */
+ULONG
AhciATAPI_CFIS (
__in PAHCI_PORT_EXTENSION PortExtension,
__in PAHCI_SRB_EXTENSION SrbExtension
@@ -1103,7 +1197,7 @@
DebugPrint("AhciATAPI_CFIS()\n");
- return;
+ return 2;
}// -- AhciATAPI_CFIS();
/**
@@ -1147,6 +1241,11 @@
{
cmdTable->PRDT[index].DBAU =
sgl->List[index].PhysicalAddress.HighPart;
}
+
+ // Data Byte Count (DBC): A â0â based value that Indicates the length, in
bytes, of the data block.
+ // A maximum of length of 4MB may exist for any entry. Bit â0â of this field
must always be â1â to
+ // indicate an even byte count. A value of â1â indicates 2 bytes, â3â
indicates 4 bytes, etc.
+ cmdTable->PRDT[index].DBC = sgl->List[index].Length - 1;
}
return sgl->NumberOfElements;
@@ -1170,7 +1269,7 @@
__in ULONG SlotIndex
)
{
- ULONG prdtlen, sig, length;
+ ULONG prdtlen, sig, length, cfl;
PAHCI_SRB_EXTENSION SrbExtension;
PAHCI_COMMAND_HEADER CommandHeader;
PAHCI_ADAPTER_EXTENSION AdapterExtension;
@@ -1193,10 +1292,12 @@
sig = StorPortReadRegisterUlong(AdapterExtension,
&PortExtension->Port->SIG);
if (sig == 0x101)
{
+ DebugPrint("\tATA Device Found!\n");
SrbExtension->CommandReg = IDE_COMMAND_IDENTIFY;
}
else
{
+ DebugPrint("\tATAPI Device Found!\n");
SrbExtension->CommandReg = IDE_COMMAND_ATAPI_IDENTIFY;
}
}
@@ -1207,13 +1308,14 @@
// program the CFIS in the CommandTable
CommandHeader = &PortExtension->CommandList[SlotIndex];
+ cfl = 0;
if (IsAtaCommand(SrbExtension->AtaFunction))
{
- AhciATA_CFIS(PortExtension, SrbExtension);
+ cfl = AhciATA_CFIS(PortExtension, SrbExtension);
}
else if (IsAtapiCommand(SrbExtension->AtaFunction))
{
- AhciATAPI_CFIS(PortExtension, SrbExtension);
+ cfl = AhciATAPI_CFIS(PortExtension, SrbExtension);
}
prdtlen = 0;
@@ -1225,7 +1327,8 @@
// Program the command header
CommandHeader->DI.PRDTL = prdtlen; // number of entries in PRD table
- CommandHeader->DI.CFL = 5;
+ CommandHeader->DI.CFL = cfl;
+ CommandHeader->DI.A = (SrbExtension->AtaFunction &
ATA_FUNCTION_ATAPI_COMMAND) ? 1 : 0;
CommandHeader->DI.W = (SrbExtension->Flags & ATA_FLAGS_DATA_OUT) ? 1 : 0;
CommandHeader->DI.P = 0; // ATA Specifications says so
CommandHeader->DI.PMP = 0; // Port Multiplier
@@ -1243,21 +1346,21 @@
CommandHeader->Reserved[3] = 0;
// set CommandHeader CTBA
- // I am really not sure if SrbExtension is 128 byte aligned or not
- // Command FIS will not work if it is not so.
CommandTablePhysicalAddress = StorPortGetPhysicalAddress(AdapterExtension,
NULL,
SrbExtension,
&length);
+ NT_ASSERT(length != 0);
+
// command table alignment
NT_ASSERT((CommandTablePhysicalAddress.LowPart % 128) == 0);
- CommandHeader->CTBA0 = CommandTablePhysicalAddress.LowPart;
+ CommandHeader->CTBA = CommandTablePhysicalAddress.LowPart;
if (IsAdapterCAPS64(AdapterExtension->CAP))
{
- CommandHeader->CTBA_U0 = CommandTablePhysicalAddress.HighPart;
+ CommandHeader->CTBA_U = CommandTablePhysicalAddress.HighPart;
}
// mark this slot
@@ -1281,6 +1384,7 @@
)
{
AHCI_PORT_CMD cmd;
+ ULONG sact, ci;
ULONG QueueSlots, slotToActivate, tmp;
PAHCI_ADAPTER_EXTENSION AdapterExtension;
@@ -1290,7 +1394,9 @@
QueueSlots = PortExtension->QueueSlots;
if (QueueSlots == 0)
+ {
return;
+ }
// section 3.3.14
// Bits in this field shall only be set to â1â by software when PxCMD.ST is set
to â1â
@@ -1300,6 +1406,9 @@
{
return;
}
+
+ sact = StorPortReadRegisterUlong(AdapterExtension,
&PortExtension->Port->SACT);
+ ci = StorPortReadRegisterUlong(AdapterExtension,
&PortExtension->Port->CI);
// get the lowest set bit
tmp = QueueSlots & (QueueSlots - 1);
@@ -1316,8 +1425,6 @@
// to validate in completeIssuedCommand
PortExtension->CommandIssuedSlots |= slotToActivate;
- DebugPrint("\tslotToActivate: %d\n", slotToActivate);
-
// tell the HBA to issue this Command Slot to the given port
StorPortWriteRegisterUlong(AdapterExtension, &PortExtension->Port->CI,
slotToActivate);
@@ -1355,16 +1462,20 @@
NT_ASSERT(PathId < AdapterExtension->PortCount);
+ AhciZeroMemory(&lockhandle, sizeof(lockhandle));
+
+ // Acquire Lock
+ StorPortAcquireSpinLock(AdapterExtension, InterruptLock, NULL, &lockhandle);
+
// add Srb to queue
AddQueue(&PortExtension->SrbQueue, Srb);
- if (PortExtension->IsActive == FALSE)
+ if (PortExtension->DeviceParams.IsActive == FALSE)
+ {
+ // Release Lock
+ StorPortReleaseSpinLock(AdapterExtension, &lockhandle);
return; // we should wait for device to get active
-
- AhciZeroMemory(&lockhandle, sizeof(lockhandle));
-
- // Acquire Lock
- StorPortAcquireSpinLock(AdapterExtension, InterruptLock, NULL, &lockhandle);
+ }
occupiedSlots = (PortExtension->QueueSlots |
PortExtension->CommandIssuedSlots); // Busy command slots for given port
NCS = AHCI_Global_Port_CAP_NCS(AdapterExtension->CAP);
@@ -1419,44 +1530,105 @@
*/
VOID
InquiryCompletion (
- __in PAHCI_ADAPTER_EXTENSION AdapterExtension,
__in PAHCI_PORT_EXTENSION PortExtension,
__in PSCSI_REQUEST_BLOCK Srb
)
{
- ULONG SrbStatus;
+ PCDB cdb;
+ PLUN_LIST LunList;
PAHCI_SRB_EXTENSION SrbExtension;
+ PIDENTIFY_DEVICE_DATA IdentifyDeviceData;
+ ULONG SrbStatus, LunCount, DataBufferLength;
DebugPrint("InquiryCompletion()\n");
NT_ASSERT(PortExtension != NULL);
NT_ASSERT(Srb != NULL);
+ cdb = (PCDB)&Srb->Cdb;
SrbStatus = Srb->SrbStatus;
SrbExtension = GetSrbExtension(Srb);
if (SrbStatus == SRB_STATUS_SUCCESS)
{
+ IdentifyDeviceData = PortExtension->IdentifyDeviceData;
+
if (SrbExtension->CommandReg == IDE_COMMAND_IDENTIFY)
{
DebugPrint("Device: ATA\n");
- AdapterExtension->DeviceParams.DeviceType = AHCI_DEVICE_TYPE_ATA;
+ PortExtension->DeviceParams.DeviceType = AHCI_DEVICE_TYPE_ATA;
+ if (IdentifyDeviceData->GeneralConfiguration.RemovableMedia)
+ {
+ PortExtension->DeviceParams.RemovableDevice = 1;
+ }
+
+ if (IdentifyDeviceData->CommandSetSupport.BigLba &&
IdentifyDeviceData->CommandSetActive.BigLba)
+ {
+ PortExtension->DeviceParams.Lba48BitMode = 1;
+ }
+
+ PortExtension->DeviceParams.AccessType = DIRECT_ACCESS_DEVICE;
+
+ // TODO: Add other device params
}
else
{
DebugPrint("Device: ATAPI\n");
- AdapterExtension->DeviceParams.DeviceType = AHCI_DEVICE_TYPE_ATAPI;
- }
- // TODO: Set Device Paramters
+ PortExtension->DeviceParams.DeviceType = AHCI_DEVICE_TYPE_ATAPI;
+
+ PortExtension->DeviceParams.AccessType = READ_ONLY_DIRECT_ACCESS_DEVICE;
+ }
}
else if (SrbStatus == SRB_STATUS_NO_DEVICE)
{
DebugPrint("Device: No Device\n");
- AdapterExtension->DeviceParams.DeviceType = AHCI_DEVICE_TYPE_NODEVICE;
+ PortExtension->DeviceParams.DeviceType = AHCI_DEVICE_TYPE_NODEVICE;
}
else
{
return;
+ }
+
+ if ((cdb != NULL) && (cdb->CDB10.OperationCode == SCSIOP_REPORT_LUNS))
+ {
+ Srb->SrbStatus = SRB_STATUS_SUCCESS;
+ Srb->ScsiStatus = SCSISTAT_GOOD;
+
+ SrbExtension->AtaFunction = 0;
+ DataBufferLength = Srb->DataTransferLength;
+
+ LunList = (PLUN_LIST)Srb->DataBuffer;
+ if (PortExtension->DeviceParams.DeviceType == AHCI_DEVICE_TYPE_NODEVICE)
+ {
+ LunCount = 0;
+ }
+ else
+ {
+ LunCount = 1;
+ }
+
+ if (DataBufferLength < sizeof(LUN_LIST))
+ {
+ DebugPrint("\tSRB_STATUS_DATA_OVERRUN\n");
+ Srb->SrbStatus = SRB_STATUS_DATA_OVERRUN;
+ }
+ else
+ {
+ LunList->LunListLength[0] = 0;
+ LunList->LunListLength[1] = 0;
+ LunList->LunListLength[2] = 0;
+ LunList->LunListLength[3] = 8;
+
+ // followed by 8 entries
+ LunList->Lun[0][0] = 0;
+ LunList->Lun[0][1] = 0;
+ LunList->Lun[0][2] = 0;
+ LunList->Lun[0][3] = 0;
+ LunList->Lun[0][4] = 0;
+ LunList->Lun[0][5] = 0;
+ LunList->Lun[0][6] = 0;
+ LunList->Lun[0][7] = 0;
+ }
}
return;
@@ -1482,13 +1654,15 @@
DeviceInquiryRequest (
__in PAHCI_ADAPTER_EXTENSION AdapterExtension,
__in PSCSI_REQUEST_BLOCK Srb,
- __in PCDB Cdb
+ __in PCDB Cdb,
+ __in BOOLEAN HasProductDataRequest
)
{
PVOID DataBuffer;
- ULONG DataBufferLength;
PAHCI_PORT_EXTENSION PortExtension;
PAHCI_SRB_EXTENSION SrbExtension;
+ PVPD_SUPPORTED_PAGES_PAGE VpdOutputBuffer;
+ ULONG DataBufferLength, RequiredDataBufferLength;
DebugPrint("DeviceInquiryRequest()\n");
@@ -1497,10 +1671,14 @@
SrbExtension = GetSrbExtension(Srb);
PortExtension = &AdapterExtension->PortExtension[Srb->PathId];
- // 3.6.1
- // If the EVPD bit is set to zero, the device server shall return the standard
INQUIRY data
- if (Cdb->CDB6INQUIRY3.EnableVitalProductData == 0)
- {
+ if (Srb->Lun != 0)
+ {
+ return SRB_STATUS_SELECTION_TIMEOUT;
+ }
+ else if ((HasProductDataRequest == FALSE) ||
(Cdb->CDB6INQUIRY3.EnableVitalProductData == 0))
+ {
+ // 3.6.1
+ // If the EVPD bit is set to zero, the device server shall return the standard
INQUIRY data
DebugPrint("\tEVPD Inquired\n");
NT_ASSERT(SrbExtension != NULL);
@@ -1514,7 +1692,7 @@
SrbExtension->LBA0 = 0;
SrbExtension->LBA1 = 0;
SrbExtension->LBA2 = 0;
- SrbExtension->Device = 0;
+ SrbExtension->Device = 0xA0;
SrbExtension->LBA3 = 0;
SrbExtension->LBA4 = 0;
SrbExtension->LBA5 = 0;
@@ -1526,8 +1704,11 @@
SrbExtension->Sgl.List[0].PhysicalAddress.LowPart =
PortExtension->IdentifyDeviceDataPhysicalAddress.LowPart;
SrbExtension->Sgl.List[0].PhysicalAddress.HighPart =
PortExtension->IdentifyDeviceDataPhysicalAddress.HighPart;
SrbExtension->Sgl.List[0].Length = sizeof(IDENTIFY_DEVICE_DATA);
- }
- else
+
+ AhciProcessIO(AdapterExtension, Srb->PathId, Srb);
+ return SRB_STATUS_PENDING;
+ }
+ else if (HasProductDataRequest == TRUE)
{
DebugPrint("\tVPD Inquired\n");
@@ -1541,12 +1722,37 @@
AhciZeroMemory(DataBuffer, DataBufferLength);
- // not supported
- return SRB_STATUS_BAD_FUNCTION;
- }
-
- AhciProcessIO(AdapterExtension, Srb->PathId, Srb);
- return SRB_STATUS_PENDING;
+ switch(Cdb->CDB6INQUIRY3.PageCode)
+ {
+ case VPD_SUPPORTED_PAGES:
+ {
+ DebugPrint("\tVPD_SUPPORTED_PAGES\n");
+ RequiredDataBufferLength = sizeof(VPD_SUPPORTED_PAGES_PAGE);
+ if (DataBufferLength < RequiredDataBufferLength)
+ {
+ DebugPrint("\tDataBufferLength: %d Required: %d\n",
DataBufferLength, RequiredDataBufferLength);
+ return SRB_STATUS_INVALID_REQUEST;
+ }
+ else
+ {
+ VpdOutputBuffer = (PVPD_SUPPORTED_PAGES_PAGE)DataBuffer;
+ VpdOutputBuffer->DeviceType =
PortExtension->DeviceParams.DeviceType;
+ VpdOutputBuffer->DeviceTypeQualifier = 0;
+ VpdOutputBuffer->PageCode = VPD_SUPPORTED_PAGES;
+ VpdOutputBuffer->PageLength = 1;
+ VpdOutputBuffer->SupportedPageList[0] = VPD_SUPPORTED_PAGES;
+
+ return SRB_STATUS_SUCCESS;
+ }
+ }
+ break;
+ default:
+ DebugPrint("\tPageCode: %x\n", Cdb->CDB6INQUIRY3.PageCode);
+ break;
+ }
+ }
+
+ return SRB_STATUS_INVALID_REQUEST;
}// -- DeviceInquiryRequest();
/**
@@ -1573,7 +1779,8 @@
__in PAHCI_ADAPTER_EXTENSION AdapterExtension
)
{
- ULONG ghc, ticks, ghcStatus;
+ ULONG ticks;
+ AHCI_GHC ghc;
PAHCI_MEMORY_REGISTERS abar = NULL;
DebugPrint("AhciAdapterReset()\n");
@@ -1585,13 +1792,13 @@
}
// HR -- Very first bit (lowest significant)
- ghc = AHCI_Global_HBA_CONTROL_HR;
- StorPortWriteRegisterUlong(AdapterExtension, &abar->GHC, ghc);
+ ghc.HR = 1;
+ StorPortWriteRegisterUlong(AdapterExtension, &abar->GHC, ghc.Status);
for (ticks = 0; ticks < 50; ++ticks)
{
- ghcStatus = StorPortReadRegisterUlong(AdapterExtension, &abar->GHC);
- if ((ghcStatus & AHCI_Global_HBA_CONTROL_HR) == 0)
+ ghc.Status = StorPortReadRegisterUlong(AdapterExtension, &abar->GHC);
+ if (ghc.HR == 0)
{
break;
}
@@ -1658,7 +1865,7 @@
return FALSE;
}
- return AdapterExtension->PortExtension[pathId].IsActive;
+ return AdapterExtension->PortExtension[pathId].DeviceParams.IsActive;
}// -- IsPortValid()
/**
Modified: branches/GSoC_2016/AHCI/drivers/storage/storahci/storahci.h
URL:
http://svn.reactos.org/svn/reactos/branches/GSoC_2016/AHCI/drivers/storage/…
==============================================================================
--- branches/GSoC_2016/AHCI/drivers/storage/storahci/storahci.h [iso-8859-1] (original)
+++ branches/GSoC_2016/AHCI/drivers/storage/storahci/storahci.h [iso-8859-1] Tue Jul 19
16:50:59 2016
@@ -25,11 +25,16 @@
#define AHCI_DEVICE_TYPE_NODEVICE 3
// section 3.1.2
-#define AHCI_Global_HBA_CONTROL_HR (1 << 0)
-#define AHCI_Global_HBA_CONTROL_IE (1 << 1)
-#define AHCI_Global_HBA_CONTROL_MRSM (1 << 2)
-#define AHCI_Global_HBA_CONTROL_AE (1 << 31)
#define AHCI_Global_HBA_CAP_S64A (1 << 31)
+
+// FIS Types : http://wiki.osdev.org/AHCI
+#define FIS_TYPE_REG_H2D 0x27 // Register FIS - host to device
+#define FIS_TYPE_REG_D2H 0x34 // Register FIS - device to host
+#define FIS_TYPE_DMA_ACT 0x39 // DMA activate FIS - device to host
+#define FIS_TYPE_DMA_SETUP 0x41 // DMA setup FIS - bidirectional
+#define FIS_TYPE_BIST 0x58 // BIST activate FIS - bidirectional
+#define FIS_TYPE_PIO_SETUP 0x5F // PIO setup FIS - device to host
+#define FIS_TYPE_DEV_BITS 0xA1 // Set device bits FIS - device to host
#define AHCI_ATA_CFIS_FisType 0
#define AHCI_ATA_CFIS_PMPort_C 1
@@ -73,7 +78,6 @@
typedef
VOID
(*PAHCI_COMPLETION_ROUTINE) (
- __in PVOID AdapterExtension,
__in PVOID PortExtension,
__in PVOID Srb
);
@@ -225,7 +229,7 @@
ULONG R : 1; // Reset
ULONG B : 1; // BIST
ULONG C : 1; //Clear Busy upon R_OK
- ULONG DW0_Reserved : 1;
+ ULONG RSV : 1;
ULONG PMP : 4; //Port Multiplier Port
ULONG PRDTL : 16; //Physical Region Descriptor Table Length
@@ -233,6 +237,20 @@
ULONG Status;
} AHCI_COMMAND_HEADER_DESCRIPTION;
+
+typedef union _AHCI_GHC
+{
+ struct
+ {
+ ULONG HR : 1;
+ ULONG IE : 1;
+ ULONG MRSM : 1;
+ ULONG RSV0 : 28;
+ ULONG AE : 1;
+ };
+
+ ULONG Status;
+} AHCI_GHC;
// section 3.3.7
typedef union _AHCI_PORT_CMD
@@ -340,10 +358,10 @@
typedef struct _AHCI_COMMAND_HEADER
{
AHCI_COMMAND_HEADER_DESCRIPTION DI; // DW 0
- ULONG PRDBC; // DW 1
- ULONG CTBA0; // DW 2
- ULONG CTBA_U0; // DW 3
- ULONG Reserved[4]; // DW 4-7
+ ULONG PRDBC; // DW 1
+ ULONG CTBA; // DW 2
+ ULONG CTBA_U; // DW 3
+ ULONG Reserved[4]; // DW 4-7
} AHCI_COMMAND_HEADER, *PAHCI_COMMAND_HEADER;
// Received FIS
@@ -384,7 +402,7 @@
ULONG Vendor[4]; // 0x70 ~ 0x7F, vendor specific
} AHCI_PORT, *PAHCI_PORT;
-typedef struct _AHCI_INTERRUPT_ENABLE
+typedef union _AHCI_INTERRUPT_ENABLE
{
struct
{
@@ -408,6 +426,7 @@
ULONG TFEE :1;
ULONG CPDE :1;
};
+
ULONG Status;
} AHCI_INTERRUPT_ENABLE;
@@ -436,9 +455,21 @@
ULONG PortNumber;
ULONG QueueSlots; // slots which we have already
assigned task (Slot)
ULONG CommandIssuedSlots; // slots which has been
programmed
- BOOLEAN IsActive;
+ ULONG MaxPortQueueDepth;
+
+ struct
+ {
+ UCHAR RemovableDevice;
+ UCHAR Lba48BitMode;
+ UCHAR AccessType;
+ UCHAR DeviceType;
+ UCHAR IsActive;
+ } DeviceParams;
+
+ STOR_DPC CommandCompletion;
PAHCI_PORT Port; // AHCI Port Infomation
AHCI_QUEUE SrbQueue; // pending Srbs
+ AHCI_QUEUE CompletionQueue;
PSCSI_REQUEST_BLOCK Slot[MAXIMUM_AHCI_PORT_NCS]; // Srbs which has been alloted a
port
PAHCI_RECEIVED_FIS ReceivedFIS;
PAHCI_COMMAND_HEADER CommandList;
@@ -469,11 +500,6 @@
ULONG CurrentCommandSlot;
PVOID NonCachedExtension; // holds virtual address to noncached buffer allocated for
Port Extension
-
- struct
- {
- UCHAR DeviceType;
- } DeviceParams;
struct
{
@@ -546,7 +572,8 @@
DeviceInquiryRequest (
__in PAHCI_ADAPTER_EXTENSION AdapterExtension,
__in PSCSI_REQUEST_BLOCK Srb,
- __in PCDB Cdb
+ __in PCDB Cdb,
+ __in BOOLEAN HasProductDataRequest
);
__inline
@@ -572,37 +599,56 @@
// Assertions //
//////////////////////////////////////////////////////////////
-C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, CAP) == 0x00);
-C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, GHC) == 0x04);
-C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, IS) == 0x08);
-C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, PI) == 0x0C);
-C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, VS) == 0x10);
-C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, CCC_CTL) == 0x14);
-C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, CCC_PTS) == 0x18);
-C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, EM_LOC) == 0x1C);
-C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, EM_CTL) == 0x20);
-C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, CAP2) == 0x24);
-C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, BOHC) == 0x28);
-C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, Reserved) == 0x2C);
+// I assert every silly mistake I can do while coding
+// because god never help me debugging the code
+// but these asserts do :')
+
+C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, CAP) == 0x00);
+C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, GHC) == 0x04);
+C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, IS) == 0x08);
+C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, PI) == 0x0C);
+C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, VS) == 0x10);
+C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, CCC_CTL) == 0x14);
+C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, CCC_PTS) == 0x18);
+C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, EM_LOC) == 0x1C);
+C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, EM_CTL) == 0x20);
+C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, CAP2) == 0x24);
+C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, BOHC) == 0x28);
+C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, Reserved) == 0x2C);
C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, VendorSpecific) == 0xA0);
-C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, PortList) == 0x100);
-
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, CLB) == 0x00);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, CLBU) == 0x04);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, FB) == 0x08);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, FBU) == 0x0C);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, IS) == 0x10);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, IE) == 0x14);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, CMD) == 0x18);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, RSV0) == 0x1C);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, TFD) == 0x20);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, SIG) == 0x24);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, SSTS) == 0x28);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, SCTL) == 0x2C);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, SERR) == 0x30);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, SACT) == 0x34);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, CI) == 0x38);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, SNTF) == 0x3C);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, FBS) == 0x40);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, RSV1) == 0x44);
-C_ASSERT(FIELD_OFFSET(AHCI_PORT, Vendor) == 0x70);
+C_ASSERT(FIELD_OFFSET(AHCI_MEMORY_REGISTERS, PortList) == 0x100);
+
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, CLB) == 0x00);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, CLBU) == 0x04);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, FB) == 0x08);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, FBU) == 0x0C);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, IS) == 0x10);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, IE) == 0x14);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, CMD) == 0x18);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, RSV0) == 0x1C);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, TFD) == 0x20);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, SIG) == 0x24);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, SSTS) == 0x28);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, SCTL) == 0x2C);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, SERR) == 0x30);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, SACT) == 0x34);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, CI) == 0x38);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, SNTF) == 0x3C);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, FBS) == 0x40);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, RSV1) == 0x44);
+C_ASSERT(FIELD_OFFSET(AHCI_PORT, Vendor) == 0x70);
+
+C_ASSERT((sizeof(AHCI_COMMAND_TABLE) % 128) == 0);
+
+C_ASSERT(sizeof(AHCI_GHC) == sizeof(ULONG));
+C_ASSERT(sizeof(AHCI_PORT_CMD) == sizeof(ULONG));
+C_ASSERT(sizeof(AHCI_TASK_FILE_DATA) == sizeof(ULONG));
+C_ASSERT(sizeof(AHCI_INTERRUPT_ENABLE) == sizeof(ULONG));
+C_ASSERT(sizeof(AHCI_SERIAL_ATA_STATUS) == sizeof(ULONG));
+C_ASSERT(sizeof(AHCI_SERIAL_ATA_CONTROL) == sizeof(ULONG));
+C_ASSERT(sizeof(AHCI_COMMAND_HEADER_DESCRIPTION) == sizeof(ULONG));
+
+C_ASSERT(FIELD_OFFSET(AHCI_COMMAND_TABLE, CFIS) == 0x00);
+C_ASSERT(FIELD_OFFSET(AHCI_COMMAND_TABLE, ACMD) == 0x40);
+C_ASSERT(FIELD_OFFSET(AHCI_COMMAND_TABLE, RSV0) == 0x50);
+C_ASSERT(FIELD_OFFSET(AHCI_COMMAND_TABLE, PRDT) == 0x80);
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apriyadarshi＠svn.reactos.org