diff options
Diffstat (limited to 'MdeModulePkg/Bus/Ata/AtaBusDxe/AtaPassThruExecute.c')
| -rw-r--r-- | MdeModulePkg/Bus/Ata/AtaBusDxe/AtaPassThruExecute.c | 321 |
1 files changed, 284 insertions, 37 deletions
diff --git a/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaPassThruExecute.c b/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaPassThruExecute.c index acfbd74394..1f204193fd 100644 --- a/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaPassThruExecute.c +++ b/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaPassThruExecute.c @@ -5,7 +5,7 @@ It transforms the high level identity, read/write, reset command to ATA pass
through command and protocol.
- Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@@ -75,14 +75,25 @@ UINTN mMaxTransferBlockNumber[] = { for an ATA device. It assembles the ATA pass through command packet for ATA
transaction.
- @param AtaDevice The ATA child device involved for the operation.
+ @param[in, out] AtaDevice The ATA child device involved for the operation.
+ @param[in, out] TaskPacket Pointer to a Pass Thru Command Packet. Optional,
+ if it is NULL, blocking mode, and use the packet
+ in AtaDevice. If it is not NULL, non blocking mode,
+ and pass down this Packet.
+ @param[in] Event If Event is NULL, then blocking I/O is performed.
+ If Event is not NULL and non-blocking I/O is
+ supported,then non-blocking I/O is performed,
+ and Event will be signaled when the write
+ request is completed.
@return The return status from EFI_ATA_PASS_THRU_PROTOCOL.PassThru().
**/
EFI_STATUS
AtaDevicePassThru (
- IN OUT ATA_DEVICE *AtaDevice
+ IN OUT ATA_DEVICE *AtaDevice,
+ IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET *TaskPacket, OPTIONAL
+ IN OUT EFI_EVENT Event OPTIONAL
)
{
EFI_STATUS Status;
@@ -90,12 +101,19 @@ AtaDevicePassThru ( EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet;
//
- // Assemble packet
+ // Assemble packet. If it is non blocking mode, the Ata driver should keep each
+ // subtask and clean them when the event is signaled.
//
- Packet = &AtaDevice->Packet;
- Packet->Asb = AtaDevice->Asb;
- Packet->Acb = &AtaDevice->Acb;
- Packet->Timeout = ATA_TIMEOUT;
+ if (TaskPacket != NULL) {
+ Packet = TaskPacket;
+ Packet->Asb = AllocateAlignedBuffer (AtaDevice, sizeof (*AtaDevice->Asb));
+ CopyMem (Packet->Asb, AtaDevice->Asb, sizeof (*AtaDevice->Asb));
+ Packet->Acb = AllocateCopyPool(sizeof (EFI_ATA_COMMAND_BLOCK), &AtaDevice->Acb);
+ } else {
+ Packet = &AtaDevice->Packet;
+ Packet->Asb = AtaDevice->Asb;
+ Packet->Acb = &AtaDevice->Acb;
+ }
AtaPassThru = AtaDevice->AtaBusDriverData->AtaPassThru;
@@ -104,7 +122,7 @@ AtaDevicePassThru ( AtaDevice->Port,
AtaDevice->PortMultiplierPort,
Packet,
- NULL
+ Event
);
//
// Ensure ATA pass through caller and callee have the same
@@ -257,6 +275,8 @@ IdentifyAtaDevice ( return EFI_UNSUPPORTED;
}
+ DEBUG ((EFI_D_INFO, "AtaBus - Identify Device (%x %x)\n", (UINTN)AtaDevice->Port, (UINTN)AtaDevice->PortMultiplierPort));
+
//
// Check whether the WORD 88 (supported UltraDMA by drive) is valid
//
@@ -319,7 +339,7 @@ IdentifyAtaDevice ( //
// Get ATA model name from identify data structure.
//
- PrintAtaModelName (AtaDevice);
+ PrintAtaModelName (AtaDevice);
return EFI_SUCCESS;
}
@@ -354,7 +374,7 @@ DiscoverAtaDevice ( //
Acb = ZeroMem (&AtaDevice->Acb, sizeof (*Acb));
Acb->AtaCommand = ATA_CMD_IDENTIFY_DRIVE;
- Acb->AtaDeviceHead = (UINT8) (BIT7 | BIT6 | BIT5 | (AtaDevice->PortMultiplierPort << 4));
+ Acb->AtaDeviceHead = (UINT8) (BIT7 | BIT6 | BIT5 | (AtaDevice->PortMultiplierPort << 4));
//
// Prepare for ATA pass through packet.
@@ -363,11 +383,12 @@ DiscoverAtaDevice ( Packet->InDataBuffer = AtaDevice->IdentifyData;
Packet->InTransferLength = sizeof (*AtaDevice->IdentifyData);
Packet->Protocol = EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_IN;
- Packet->Length = EFI_ATA_PASS_THRU_LENGTH_BYTES | EFI_ATA_PASS_THRU_LENGTH_SECTOR_COUNT;
+ Packet->Length = EFI_ATA_PASS_THRU_LENGTH_BYTES | EFI_ATA_PASS_THRU_LENGTH_SECTOR_COUNT;
+ Packet->Timeout = ATA_TIMEOUT;
Retry = MAX_RETRY_TIMES;
do {
- Status = AtaDevicePassThru (AtaDevice);
+ Status = AtaDevicePassThru (AtaDevice, NULL, NULL);
if (!EFI_ERROR (Status)) {
//
// The command is issued successfully
@@ -389,11 +410,20 @@ DiscoverAtaDevice ( ATA device. It chooses the appropriate ATA command and protocol to invoke PassThru
interface of ATA pass through.
- @param AtaDevice The ATA child device involved for the operation.
- @param Buffer The pointer to the current transaction buffer.
- @param StartLba The starting logical block address to be accessed.
- @param TransferLength The block number or sector count of the transfer.
- @param IsWrite Indicates whether it is a write operation.
+ @param[in, out] AtaDevice The ATA child device involved for the operation.
+ @param[in, out] TaskPacket Pointer to a Pass Thru Command Packet. Optional,
+ if it is NULL, blocking mode, and use the packet
+ in AtaDevice. If it is not NULL, non blocking mode,
+ and pass down this Packet.
+ @param[in, out] Buffer The pointer to the current transaction buffer.
+ @param[in] StartLba The starting logical block address to be accessed.
+ @param[in] TransferLength The block number or sector count of the transfer.
+ @param[in] IsWrite Indicates whether it is a write operation.
+ @param[in] Event If Event is NULL, then blocking I/O is performed.
+ If Event is not NULL and non-blocking I/O is
+ supported,then non-blocking I/O is performed,
+ and Event will be signaled when the write
+ request is completed.
@retval EFI_SUCCESS The data transfer is complete successfully.
@return others Some error occurs when transferring data.
@@ -401,11 +431,13 @@ DiscoverAtaDevice ( **/
EFI_STATUS
TransferAtaDevice (
- IN OUT ATA_DEVICE *AtaDevice,
- IN OUT VOID *Buffer,
- IN EFI_LBA StartLba,
- IN UINT32 TransferLength,
- IN BOOLEAN IsWrite
+ IN OUT ATA_DEVICE *AtaDevice,
+ IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET *TaskPacket, OPTIONAL
+ IN OUT VOID *Buffer,
+ IN EFI_LBA StartLba,
+ IN UINT32 TransferLength,
+ IN BOOLEAN IsWrite,
+ IN EFI_EVENT Event OPTIONAL
)
{
EFI_ATA_COMMAND_BLOCK *Acb;
@@ -425,7 +457,7 @@ TransferAtaDevice ( Acb->AtaSectorNumber = (UINT8) StartLba;
Acb->AtaCylinderLow = (UINT8) RShiftU64 (StartLba, 8);
Acb->AtaCylinderHigh = (UINT8) RShiftU64 (StartLba, 16);
- Acb->AtaDeviceHead = (UINT8) (BIT7 | BIT6 | BIT5 | (AtaDevice->PortMultiplierPort << 4));
+ Acb->AtaDeviceHead = (UINT8) (BIT7 | BIT6 | BIT5 | (AtaDevice->PortMultiplierPort << 4));
Acb->AtaSectorCount = (UINT8) TransferLength;
if (AtaDevice->Lba48Bit) {
Acb->AtaSectorNumberExp = (UINT8) RShiftU64 (StartLba, 24);
@@ -439,7 +471,12 @@ TransferAtaDevice ( //
// Prepare for ATA pass through packet.
//
- Packet = ZeroMem (&AtaDevice->Packet, sizeof (*Packet));
+ if (TaskPacket != NULL) {
+ Packet = ZeroMem (TaskPacket, sizeof (*Packet));
+ } else {
+ Packet = ZeroMem (&AtaDevice->Packet, sizeof (*Packet));
+ }
+
if (IsWrite) {
Packet->OutDataBuffer = Buffer;
Packet->OutTransferLength = TransferLength;
@@ -447,10 +484,109 @@ TransferAtaDevice ( Packet->InDataBuffer = Buffer;
Packet->InTransferLength = TransferLength;
}
+
Packet->Protocol = mAtaPassThruCmdProtocols[AtaDevice->UdmaValid][IsWrite];
Packet->Length = EFI_ATA_PASS_THRU_LENGTH_SECTOR_COUNT;
+ Packet->Timeout = ATA_TIMEOUT;
+
+ return AtaDevicePassThru (AtaDevice, TaskPacket, Event);
+}
+
+/**
+ Free SubTask.
+
+ @param[in, out] Task Pointer to task to be freed.
+
+**/
+VOID
+EFIAPI
+FreeAtaSubTask (
+ IN ATA_BUS_ASYN_TASK *Task
+ )
+{
+ if (Task->Packet.Asb != NULL) {
+ FreeAlignedBuffer (Task->Packet.Asb, sizeof (Task->Packet.Asb));
+ }
+ if (Task->Packet.Acb != NULL) {
+ FreePool (Task->Packet.Acb);
+ }
+
+ FreePool (Task);
+}
+
+/**
+ Call back funtion when the event is signaled.
+
+ @param[in] Event The Event this notify function registered to.
+ @param[in] Context Pointer to the context data registerd to the
+ Event.
+
+**/
+VOID
+EFIAPI
+AtaNonBlockingCallBack (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ ATA_BUS_ASYN_TASK *Task;
+
+ Task = (ATA_BUS_ASYN_TASK *) Context;
+ gBS->CloseEvent (Event);
+
+ //
+ // Check the command status.
+ // If there is error during the sub task source allocation, the error status
+ // should be returned to the caller directly, so here the Task->Token may already
+ // be deleted by the caller and no need to update the status.
+ //
+ if ((!(*Task->IsError)) && (Task->Packet.Asb->AtaStatus & 0x01) == 0x01) {
+ Task->Token->TransactionStatus = EFI_DEVICE_ERROR;
+ }
+ DEBUG ((
+ DEBUG_INFO,
+ "NON-BLOCKING EVENT FINISHED!- STATUS = %r\n",
+ Task->Token->TransactionStatus
+ ));
+
+ //
+ // Reduce the SubEventCount, till it comes to zero.
+ //
+ (*Task->UnsignalledEventCount) --;
+ DEBUG ((DEBUG_INFO, "UnsignalledEventCount = %x\n", *Task->UnsignalledEventCount));
+
+ //
+ // Remove the SubTask from the Task list.
+ //
+ RemoveEntryList (&Task->TaskEntry);
+ if ((*Task->UnsignalledEventCount) == 0) {
+ //
+ // All Sub tasks are done, then signal the upper layyer event.
+ // Except there is error during the sub task source allocation.
+ //
+ if (!(*Task->IsError)) {
+ gBS->SignalEvent (Task->Token->Event);
+ DEBUG ((DEBUG_INFO, "Signal Up Level Event UnsignalledEventCount = %x!\n", *Task->UnsignalledEventCount));
+ }
+
+ FreePool (Task->UnsignalledEventCount);
+ FreePool (Task->IsError);
+ }
- return AtaDevicePassThru (AtaDevice);
+ DEBUG ((
+ DEBUG_INFO,
+ "PACKET INFO: Write=%s, Lenght=%x, LowCylinder=%x, HighCylinder=%x,SectionNumber=%x",
+ Task->Packet.OutDataBuffer != NULL ? L"YES" : L"NO",
+ Task->Packet.OutDataBuffer != NULL ? Task->Packet.OutTransferLength : Task->Packet.InTransferLength,
+ Task->Packet.Acb->AtaCylinderLow,
+ Task->Packet.Acb->AtaCylinderHigh,
+ Task->Packet.Acb->AtaSectorCount
+ ));
+
+ //
+ // Free the buffer of SubTask.
+ //
+ FreeAtaSubTask (Task);
}
/**
@@ -460,11 +596,12 @@ TransferAtaDevice ( ATA device. It may separate the read/write request into several ATA pass through
transactions.
- @param AtaDevice The ATA child device involved for the operation.
- @param Buffer The pointer to the current transaction buffer.
- @param StartLba The starting logical block address to be accessed.
- @param NumberOfBlocks The block number or sector count of the transfer.
- @param IsWrite Indicates whether it is a write operation.
+ @param[in, out] AtaDevice The ATA child device involved for the operation.
+ @param[in, out] Buffer The pointer to the current transaction buffer.
+ @param[in] StartLba The starting logical block address to be accessed.
+ @param[in] NumberOfBlocks The block number or sector count of the transfer.
+ @param[in] IsWrite Indicates whether it is a write operation.
+ @param[in, out] Token A pointer to the token associated with the transaction.
@retval EFI_SUCCESS The data transfer is complete successfully.
@return others Some error occurs when transferring data.
@@ -476,36 +613,146 @@ AccessAtaDevice( IN OUT UINT8 *Buffer,
IN EFI_LBA StartLba,
IN UINTN NumberOfBlocks,
- IN BOOLEAN IsWrite
+ IN BOOLEAN IsWrite,
+ IN OUT EFI_BLOCK_IO2_TOKEN *Token
)
{
EFI_STATUS Status;
UINTN MaxTransferBlockNumber;
UINTN TransferBlockNumber;
UINTN BlockSize;
-
+ UINTN *EventCount;
+ UINTN TempCount;
+ ATA_BUS_ASYN_TASK *Task;
+ EFI_EVENT SubEvent;
+ UINTN Index;
+ BOOLEAN *IsError;
+ EFI_TPL OldTpl;
+
+ SubEvent = NULL;
+ TempCount = 0;
+ Status = EFI_SUCCESS;
+
+ EventCount = AllocateZeroPool (sizeof (UINTN));
+ if (EventCount == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ IsError = AllocateZeroPool (sizeof (BOOLEAN));
+ if (IsError == NULL) {
+ goto EXIT;
+ }
+ *IsError = FALSE;
+
+ //
+ // Initial the return status for Non Blocking.
+ //
+ if (Token != NULL && Token->Event != NULL) {
+ Token->TransactionStatus = EFI_SUCCESS;
+ }
//
// Ensure AtaDevice->Lba48Bit is a valid boolean value
//
ASSERT ((UINTN) AtaDevice->Lba48Bit < 2);
MaxTransferBlockNumber = mMaxTransferBlockNumber[AtaDevice->Lba48Bit];
- BlockSize = AtaDevice->BlockMedia.BlockSize;
+ BlockSize = AtaDevice->BlockMedia.BlockSize;
+
+ TempCount = (NumberOfBlocks + MaxTransferBlockNumber - 1) / MaxTransferBlockNumber;
+ *EventCount = TempCount;
+ Index = 0;
+
do {
if (NumberOfBlocks > MaxTransferBlockNumber) {
TransferBlockNumber = MaxTransferBlockNumber;
- NumberOfBlocks -= MaxTransferBlockNumber;
+ NumberOfBlocks -= MaxTransferBlockNumber;
} else {
TransferBlockNumber = NumberOfBlocks;
NumberOfBlocks = 0;
}
- Status = TransferAtaDevice (AtaDevice, Buffer, StartLba, (UINT32) TransferBlockNumber, IsWrite);
+ //
+ // Create sub event for the sub Ata task. Non-Blocking Mode.
+ //
+ if (Token != NULL && Token->Event != NULL) {
+ OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
+ Task = AllocateZeroPool (sizeof (ATA_BUS_ASYN_TASK));
+ if (Task == NULL) {
+ //
+ // If resource allocation fail, reduce the total sub event counts.
+ //
+ *EventCount = (*EventCount) - (TempCount - Index);
+ *IsError = TRUE;
+ Token->TransactionStatus = EFI_OUT_OF_RESOURCES;
+ Status = EFI_OUT_OF_RESOURCES;
+
+ gBS->RestoreTPL (OldTpl);
+ goto EXIT;
+ }
+
+ Task->UnsignalledEventCount = EventCount;
+ Task->Token = Token;
+ Task->IsError = IsError;
+
+ InsertTailList (&AtaDevice->AtaTaskList, &Task->TaskEntry);
+
+ Status = gBS->CreateEvent (
+ EVT_NOTIFY_SIGNAL,
+ TPL_NOTIFY,
+ AtaNonBlockingCallBack,
+ Task,
+ &SubEvent
+ );
+ //
+ // If resource allocation fail, the un-signalled event count should equal to
+ // the original one minus the unassigned subtasks number.
+ //
+ if (EFI_ERROR (Status)) {
+ *EventCount = (*EventCount) - (TempCount - Index);
+ *IsError = TRUE;
+ gBS->RestoreTPL (OldTpl);
+ goto EXIT;
+ }
+ Index++;
+ gBS->RestoreTPL (OldTpl);
+
+ DEBUG ((EFI_D_INFO, "NON-BLOCKING SET EVENT START: WRITE = %d\n", IsWrite));
+ Status = TransferAtaDevice (AtaDevice, &Task->Packet, Buffer, StartLba, (UINT32) TransferBlockNumber, IsWrite, SubEvent);
+ DEBUG ((
+ EFI_D_INFO,
+ "NON-BLOCKING SET EVENT END:StartLba=%x, TransferBlockNumbers=%x, Status=%r\n",
+ StartLba,
+ TransferBlockNumber,
+ Status
+ ));
+ }else {
+ //
+ // Blocking Mode.
+ //
+ DEBUG ((EFI_D_INFO, "BLOCKING BLOCK I/O START: WRITE = %d\n", IsWrite));
+ Status = TransferAtaDevice (AtaDevice, NULL, Buffer, StartLba, (UINT32) TransferBlockNumber, IsWrite, NULL);
+ DEBUG ((
+ EFI_D_INFO,
+ "BLOCKING BLOCK I/O FINISHE - StartLba = %x; TransferBlockNumbers = %x, status = %r\n",
+ StartLba,
+ TransferBlockNumber,
+ Status
+ ));
+ }
+
if (EFI_ERROR (Status)) {
- return Status;
+ goto EXIT;
}
+
StartLba += TransferBlockNumber;
Buffer += TransferBlockNumber * BlockSize;
} while (NumberOfBlocks > 0);
+EXIT:
+
+ if (*EventCount == 0) {
+ FreePool (EventCount);
+ FreePool (IsError);
+ }
+
return Status;
}
|