X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdeModulePkg%2FBus%2FScsi%2FScsiBusDxe%2FScsiBus.c;h=11a7f2a9270a01808ce81e90883cb66191c4de5e;hp=4efee5b05baed93ab076074a67ebe6a7394d2fe0;hb=d1102dba7210b95e41d06c2338a22ba6af248645;hpb=d51cf796da63c0e06ba33b846bfbae66e178339e
diff --git a/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.c b/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.c
index 4efee5b05b..11a7f2a927 100644
--- a/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.c
+++ b/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.c
@@ -2,8 +2,8 @@
SCSI Bus driver that layers on every SCSI Pass Thru and
Extended SCSI Pass Thru protocol in the system.
-Copyright (c) 2006 - 2008, Intel Corporation.
-All rights reserved. This program and the accompanying materials
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.
+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
http://opensource.org/licenses/bsd-license.php
@@ -14,27 +14,9 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
-#include
-
-
-#include
-#include
-#include
-#include
-#include
-#include
-
-#include
-#include
-#include
-#include
-#include
-#include
-#include
-#include
-
#include "ScsiBus.h"
+
EFI_DRIVER_BINDING_PROTOCOL gSCSIBusDriverBinding = {
SCSIBusDriverBindingSupported,
SCSIBusDriverBindingStart,
@@ -44,45 +26,102 @@ EFI_DRIVER_BINDING_PROTOCOL gSCSIBusDriverBinding = {
NULL
};
+VOID *mWorkingBuffer;
-//
-// The ScsiBusProtocol is just used to locate ScsiBusDev
-// structure in the SCSIBusDriverBindingStop(). Then we can
-// Close all opened protocols and release this structure.
-//
-EFI_GUID mScsiBusProtocolGuid = EFI_SCSI_BUS_PROTOCOL_GUID;
+/**
+ Convert EFI_SCSI_IO_SCSI_REQUEST_PACKET packet to EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET packet.
-VOID *WorkingBuffer;
+ @param Packet The pointer of EFI_SCSI_IO_SCSI_REQUEST_PACKET
+ @param CommandPacket The pointer of EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET
+**/
EFI_STATUS
EFIAPI
ScsiioToPassThruPacket (
IN EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet,
- IN OUT EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *CommandPacket
+ OUT EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *CommandPacket
);
+/**
+ Convert EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET packet to EFI_SCSI_IO_SCSI_REQUEST_PACKET packet.
+
+ @param ScsiPacket The pointer of EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET
+ @param Packet The pointer of EFI_SCSI_IO_SCSI_REQUEST_PACKET
+**/
EFI_STATUS
EFIAPI
PassThruToScsiioPacket (
IN EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *ScsiPacket,
- IN OUT EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet
+ OUT EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet
);
+
+/**
+ Notify Function in which convert EFI1.0 PassThru Packet back to UEF2.0
+ SCSI IO Packet.
+
+ @param Event The instance of EFI_EVENT.
+ @param Context The parameter passed in.
+
+**/
VOID
EFIAPI
NotifyFunction (
- EFI_EVENT Event,
- VOID *Context
+ IN EFI_EVENT Event,
+ IN VOID *Context
);
+/**
+ Allocates an aligned buffer for SCSI device.
+
+ This function allocates an aligned buffer for the SCSI device to perform
+ SCSI pass through operations. The alignment requirement is from SCSI pass
+ through interface.
+
+ @param ScsiIoDevice The SCSI child device involved for the operation.
+ @param BufferSize The request buffer size.
+
+ @return A pointer to the aligned buffer or NULL if the allocation fails.
+
+**/
+VOID *
+AllocateAlignedBuffer (
+ IN SCSI_IO_DEV *ScsiIoDevice,
+ IN UINTN BufferSize
+ )
+{
+ return AllocateAlignedPages (EFI_SIZE_TO_PAGES (BufferSize), ScsiIoDevice->ScsiIo.IoAlign);
+}
+
+/**
+ Frees an aligned buffer for SCSI device.
+
+ This function frees an aligned buffer for the SCSI device to perform
+ SCSI pass through operations.
+
+ @param Buffer The aligned buffer to be freed.
+ @param BufferSize The request buffer size.
+
+**/
+VOID
+FreeAlignedBuffer (
+ IN VOID *Buffer,
+ IN UINTN BufferSize
+ )
+{
+ if (Buffer != NULL) {
+ FreeAlignedPages (Buffer, EFI_SIZE_TO_PAGES (BufferSize));
+ }
+}
+
/**
The user Entry Point for module ScsiBus. The user code starts with this function.
- @param[in] ImageHandle The firmware allocated handle for the EFI image.
- @param[in] SystemTable A pointer to the EFI System Table.
+ @param ImageHandle The firmware allocated handle for the EFI image.
+ @param SystemTable A pointer to the EFI System Table.
- @retval EFI_SUCCESS The entry point is executed successfully.
- @retval other Some error occurs when executing this entry point.
+ @retval EFI_SUCCESS The entry point is executed successfully.
+ @retval other Some error occurs when executing this entry point.
**/
EFI_STATUS
@@ -110,6 +149,26 @@ InitializeScsiBus(
return Status;
}
+
+/**
+ Test to see if this driver supports ControllerHandle.
+
+ This service is called by the EFI boot service ConnectController(). In order
+ to make drivers as small as possible, there are a few calling restrictions for
+ this service. ConnectController() must follow these calling restrictions. If
+ any other agent wishes to call Supported() it must also follow these calling
+ restrictions.
+
+ @param This Protocol instance pointer.
+ @param ControllerHandle Handle of device to test
+ @param RemainingDevicePath Optional parameter use to pick a specific child
+ device to start.
+
+ @retval EFI_SUCCESS This driver supports this device
+ @retval EFI_ALREADY_STARTED This driver is already running on this device
+ @retval other This driver does not support this device
+
+**/
EFI_STATUS
EFIAPI
SCSIBusDriverBindingSupported (
@@ -117,32 +176,21 @@ SCSIBusDriverBindingSupported (
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
-/*++
-
-Routine Description:
-
- Test to see if this driver supports ControllerHandle. Any ControllerHandle
- that has ExtScsiPassThruProtocol/ScsiPassThruProtocol installed will be supported.
-
-Arguments:
-
- This - Protocol instance pointer.
- Controller - Handle of device to test
- RemainingDevicePath - Not used
-
-Returns:
-
- EFI_SUCCESS - This driver supports this device.
- EFI_UNSUPPORTED - This driver does not support this device.
-
---*/
-
{
- EFI_STATUS Status;
- EFI_SCSI_PASS_THRU_PROTOCOL *PassThru;
+ EFI_STATUS Status;
+ EFI_SCSI_PASS_THRU_PROTOCOL *PassThru;
EFI_EXT_SCSI_PASS_THRU_PROTOCOL *ExtPassThru;
+ UINT64 Lun;
+ UINT8 *TargetId;
+ SCSI_TARGET_ID ScsiTargetId;
+
+ TargetId = &ScsiTargetId.ScsiId.ExtScsi[0];
+ SetMem (TargetId, TARGET_MAX_BYTES, 0xFF);
+
//
- // Check for the existence of Extended SCSI Pass Thru Protocol and SCSI Pass Thru Protocol
+ // To keep backward compatibility, UEFI ExtPassThru Protocol is supported as well as
+ // EFI PassThru Protocol. From priority perspective, ExtPassThru Protocol is firstly
+ // tried to open on host controller handle. If fails, then PassThru Protocol is tried instead.
//
Status = gBS->OpenProtocol (
Controller,
@@ -155,45 +203,100 @@ Returns:
if (Status == EFI_ALREADY_STARTED) {
return EFI_SUCCESS;
- }
-
- if (EFI_ERROR (Status)) {
- Status = gBS->OpenProtocol (
- Controller,
- &gEfiScsiPassThruProtocolGuid,
- (VOID **)&PassThru,
- This->DriverBindingHandle,
- Controller,
- EFI_OPEN_PROTOCOL_BY_DRIVER
- );
-
- if (Status == EFI_ALREADY_STARTED) {
+ } else if (!EFI_ERROR(Status)) {
+ //
+ // Check if RemainingDevicePath is NULL or the End of Device Path Node,
+ // if yes, return EFI_SUCCESS.
+ //
+ if ((RemainingDevicePath == NULL) || IsDevicePathEnd (RemainingDevicePath)) {
+ //
+ // Close protocol regardless of RemainingDevicePath validation
+ //
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiExtScsiPassThruProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
return EFI_SUCCESS;
+ } else {
+ //
+ // If RemainingDevicePath isn't the End of Device Path Node, check its validation
+ //
+ Status = ExtPassThru->GetTargetLun (ExtPassThru, RemainingDevicePath, &TargetId, &Lun);
+ //
+ // Close protocol regardless of RemainingDevicePath validation
+ //
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiExtScsiPassThruProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+ if (!EFI_ERROR(Status)) {
+ return EFI_SUCCESS;
+ }
}
+ }
- if (EFI_ERROR (Status)) {
- return Status;
- }
+ //
+ // Come here in 2 condition:
+ // 1. ExtPassThru doesn't exist.
+ // 2. ExtPassThru exists but RemainingDevicePath is invalid.
+ //
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiScsiPassThruProtocolGuid,
+ (VOID **)&PassThru,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
- gBS->CloseProtocol (
- Controller,
- &gEfiScsiPassThruProtocolGuid,
- This->DriverBindingHandle,
- Controller
- );
+ if (Status == EFI_ALREADY_STARTED) {
return EFI_SUCCESS;
}
- gBS->CloseProtocol (
- Controller,
- &gEfiExtScsiPassThruProtocolGuid,
- This->DriverBindingHandle,
- Controller
- );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
- return EFI_SUCCESS;
+ //
+ // Test RemainingDevicePath is valid or not.
+ //
+ if ((RemainingDevicePath != NULL) && !IsDevicePathEnd (RemainingDevicePath)) {
+ Status = PassThru->GetTargetLun (PassThru, RemainingDevicePath, &ScsiTargetId.ScsiId.Scsi, &Lun);
+ }
+
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiScsiPassThruProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+ return Status;
}
+
+/**
+ Start this driver on ControllerHandle.
+
+ This service is called by the EFI boot service ConnectController(). In order
+ to make drivers as small as possible, there are a few calling restrictions for
+ this service. ConnectController() must follow these calling restrictions. If
+ any other agent wishes to call Start() it must also follow these calling
+ restrictions.
+
+ @param This Protocol instance pointer.
+ @param ControllerHandle Handle of device to bind driver to
+ @param RemainingDevicePath Optional parameter use to pick a specific child
+ device to start.
+
+ @retval EFI_SUCCESS This driver is added to ControllerHandle
+ @retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
+ @retval other This driver does not support this device
+
+**/
EFI_STATUS
EFIAPI
SCSIBusDriverBindingStart (
@@ -201,22 +304,6 @@ SCSIBusDriverBindingStart (
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
-/*++
-
-Routine Description:
- Starting the SCSI Bus Driver
-
-Arguments:
- This - Protocol instance pointer.
- Controller - Handle of device to test
- RemainingDevicePath - Not used
-
-Returns:
- EFI_SUCCESS - This driver supports this device.
- EFI_UNSUPPORTED - This driver does not support this device.
- EFI_DEVICE_ERROR - This driver cannot be started due to device Error
-
---*/
{
UINT64 Lun;
UINT8 *TargetId;
@@ -227,26 +314,21 @@ Returns:
EFI_STATUS DevicePathStatus;
EFI_STATUS PassThruStatus;
SCSI_BUS_DEVICE *ScsiBusDev;
- SCSI_TARGET_ID *ScsiTargetId;
+ SCSI_TARGET_ID ScsiTargetId;
EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
EFI_SCSI_PASS_THRU_PROTOCOL *ScsiInterface;
EFI_EXT_SCSI_PASS_THRU_PROTOCOL *ExtScsiInterface;
EFI_SCSI_BUS_PROTOCOL *BusIdentify;
TargetId = NULL;
- ScsiTargetId = NULL;
ScanOtherPuns = TRUE;
FromFirstTarget = FALSE;
ExtScsiSupport = FALSE;
PassThruStatus = EFI_SUCCESS;
-
- ScsiTargetId = AllocateZeroPool(sizeof(SCSI_TARGET_ID));
- if (ScsiTargetId == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
- TargetId = &ScsiTargetId->ScsiId.ExtScsi[0];
-
+ TargetId = &ScsiTargetId.ScsiId.ExtScsi[0];
+ SetMem (TargetId, TARGET_MAX_BYTES, 0xFF);
+
DevicePathStatus = gBS->OpenProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
@@ -260,7 +342,16 @@ Returns:
}
//
- // To keep backward compatibility, UEFI ExtPassThru Protocol is supported as well as
+ // Report Status Code to indicate SCSI bus starts
+ //
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (
+ EFI_PROGRESS_CODE,
+ (EFI_IO_BUS_SCSI | EFI_IOB_PC_INIT),
+ ParentDevicePath
+ );
+
+ //
+ // To keep backward compatibility, UEFI ExtPassThru Protocol is supported as well as
// EFI PassThru Protocol. From priority perspective, ExtPassThru Protocol is firstly
// tried to open on host controller handle. If fails, then PassThru Protocol is tried instead.
//
@@ -295,13 +386,13 @@ Returns:
This->DriverBindingHandle,
Controller
);
- }
+ }
return Status;
- }
+ }
} else {
//
- // Succeed to open ExtPassThru Protocol, and meanwhile open PassThru Protocol
- // with BY_DRIVER if it is also present on the handle. The intent is to prevent
+ // Succeed to open ExtPassThru Protocol, and meanwhile open PassThru Protocol
+ // with BY_DRIVER if it is also present on the handle. The intent is to prevent
// another SCSI Bus Driver to work on the same host handle.
//
ExtScsiSupport = TRUE;
@@ -314,7 +405,7 @@ Returns:
EFI_OPEN_PROTOCOL_BY_DRIVER
);
}
-
+
if (Status != EFI_ALREADY_STARTED) {
//
// Go through here means either ExtPassThru or PassThru Protocol is successfully opened
@@ -332,17 +423,17 @@ Returns:
if (ScsiBusDev->ExtScsiSupport) {
ScsiBusDev->ExtScsiInterface = ExtScsiInterface;
} else {
- ScsiBusDev->ScsiInterface = ScsiInterface;
+ ScsiBusDev->ScsiInterface = ScsiInterface;
}
//
// Install EFI_SCSI_BUS_PROTOCOL to the controller handle, So ScsiBusDev could be
// retrieved on this controller handle. With ScsiBusDev, we can know which PassThru
// Protocol is present on the handle, UEFI ExtPassThru Protocol or EFI PassThru Protocol.
- //
+ //
Status = gBS->InstallProtocolInterface (
&Controller,
- &mScsiBusProtocolGuid,
+ &gEfiCallerIdGuid,
EFI_NATIVE_INTERFACE,
&ScsiBusDev->BusIdentify
);
@@ -356,7 +447,7 @@ Returns:
//
Status = gBS->OpenProtocol (
Controller,
- &mScsiBusProtocolGuid,
+ &gEfiCallerIdGuid,
(VOID **) &BusIdentify,
This->DriverBindingHandle,
Controller,
@@ -369,16 +460,42 @@ Returns:
ScsiBusDev = SCSI_BUS_CONTROLLER_DEVICE_FROM_THIS (BusIdentify);
}
+ //
+ // Report Status Code to indicate detecting devices on bus
+ //
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (
+ EFI_PROGRESS_CODE,
+ (EFI_IO_BUS_SCSI | EFI_IOB_PC_DETECT),
+ ParentDevicePath
+ );
+
+ Lun = 0;
if (RemainingDevicePath == NULL) {
- SetMem (ScsiTargetId, TARGET_MAX_BYTES,0xFF);
- Lun = 0;
+ //
+ // If RemainingDevicePath is NULL,
+ // must enumerate all SCSI devices anyway
+ //
FromFirstTarget = TRUE;
- } else {
+ } else if (!IsDevicePathEnd (RemainingDevicePath)) {
+ //
+ // If RemainingDevicePath isn't the End of Device Path Node,
+ // only scan the specified device by RemainingDevicePath
+ //
if (ScsiBusDev->ExtScsiSupport) {
- ScsiBusDev->ExtScsiInterface->GetTargetLun (ScsiBusDev->ExtScsiInterface, RemainingDevicePath, &TargetId, &Lun);
+ Status = ScsiBusDev->ExtScsiInterface->GetTargetLun (ScsiBusDev->ExtScsiInterface, RemainingDevicePath, &TargetId, &Lun);
} else {
- ScsiBusDev->ScsiInterface->GetTargetLun (ScsiBusDev->ScsiInterface, RemainingDevicePath, &ScsiTargetId->ScsiId.Scsi, &Lun);
+ Status = ScsiBusDev->ScsiInterface->GetTargetLun (ScsiBusDev->ScsiInterface, RemainingDevicePath, &ScsiTargetId.ScsiId.Scsi, &Lun);
+ }
+
+ if (EFI_ERROR (Status)) {
+ return Status;
}
+ } else {
+ //
+ // If RemainingDevicePath is the End of Device Path Node,
+ // skip enumerate any device and return EFI_SUCESSS
+ //
+ ScanOtherPuns = FALSE;
}
while(ScanOtherPuns) {
@@ -390,7 +507,7 @@ Returns:
if (ScsiBusDev->ExtScsiSupport) {
Status = ScsiBusDev->ExtScsiInterface->GetNextTargetLun (ScsiBusDev->ExtScsiInterface, &TargetId, &Lun);
} else {
- Status = ScsiBusDev->ScsiInterface->GetNextDevice (ScsiBusDev->ScsiInterface, &ScsiTargetId->ScsiId.Scsi, &Lun);
+ Status = ScsiBusDev->ScsiInterface->GetNextDevice (ScsiBusDev->ScsiInterface, &ScsiTargetId.ScsiId.Scsi, &Lun);
}
if (EFI_ERROR (Status)) {
//
@@ -405,11 +522,11 @@ Returns:
// Avoid creating handle for the host adapter.
//
if (ScsiBusDev->ExtScsiSupport) {
- if ((ScsiTargetId->ScsiId.Scsi) == ScsiBusDev->ExtScsiInterface->Mode->AdapterId) {
+ if ((ScsiTargetId.ScsiId.Scsi) == ScsiBusDev->ExtScsiInterface->Mode->AdapterId) {
continue;
}
} else {
- if ((ScsiTargetId->ScsiId.Scsi) == ScsiBusDev->ScsiInterface->Mode->AdapterId) {
+ if ((ScsiTargetId.ScsiId.Scsi) == ScsiBusDev->ScsiInterface->Mode->AdapterId) {
continue;
}
}
@@ -417,17 +534,16 @@ Returns:
// Scan for the scsi device, if it attaches to the scsi bus,
// then create handle and install scsi i/o protocol.
//
- Status = ScsiScanCreateDevice (This, Controller, ScsiTargetId, Lun, ScsiBusDev);
+ Status = ScsiScanCreateDevice (This, Controller, &ScsiTargetId, Lun, ScsiBusDev);
}
- gBS->FreePool (ScsiTargetId);
return EFI_SUCCESS;
-
+
ErrorExit:
-
+
if (ScsiBusDev != NULL) {
- gBS->FreePool (ScsiBusDev);
+ FreePool (ScsiBusDev);
}
-
+
if (ExtScsiSupport) {
gBS->CloseProtocol (
Controller,
@@ -454,6 +570,25 @@ ErrorExit:
return Status;
}
+/**
+ Stop this driver on ControllerHandle.
+
+ This service is called by the EFI boot service DisconnectController().
+ In order to make drivers as small as possible, there are a few calling
+ restrictions for this service. DisconnectController() must follow these
+ calling restrictions. If any other agent wishes to call Stop() it must also
+ follow these calling restrictions.
+
+ @param This Protocol instance pointer.
+ @param ControllerHandle Handle of device to stop driver on
+ @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
+ children is zero stop the entire bus driver.
+ @param ChildHandleBuffer List of Child Handles to Stop.
+
+ @retval EFI_SUCCESS This driver is removed ControllerHandle
+ @retval other This driver was not removed from this device
+
+**/
EFI_STATUS
EFIAPI
SCSIBusDriverBindingStop (
@@ -462,25 +597,6 @@ SCSIBusDriverBindingStop (
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
-/*++
-
-Routine Description:
-
- Stop this driver on ControllerHandle. Support stoping any child handles
- created by this driver.
-
-Arguments:
-
- This - Protocol instance pointer.
- Controller - Handle of device to stop driver on
- NumberOfChildren - Number of Children in the ChildHandleBuffer
- ChildHandleBuffer - List of handles for the children we need to stop.
-
-Returns:
-
- EFI_SUCCESS
- Others
---*/
{
EFI_STATUS Status;
BOOLEAN AllChildrenStopped;
@@ -497,7 +613,7 @@ Returns:
//
Status = gBS->OpenProtocol (
Controller,
- &mScsiBusProtocolGuid,
+ &gEfiCallerIdGuid,
(VOID **) &Scsidentifier,
This->DriverBindingHandle,
Controller,
@@ -515,7 +631,7 @@ Returns:
//
gBS->UninstallProtocolInterface (
Controller,
- &mScsiBusProtocolGuid,
+ &gEfiCallerIdGuid,
&ScsiBusDev->BusIdentify
);
@@ -523,12 +639,26 @@ Returns:
// Close the bus driver
//
if (ScsiBusDev->ExtScsiSupport) {
+ //
+ // Close ExtPassThru Protocol from this controller handle
+ //
gBS->CloseProtocol (
Controller,
&gEfiExtScsiPassThruProtocolGuid,
This->DriverBindingHandle,
Controller
);
+ //
+ // When Start() succeeds to open ExtPassThru, it always tries to open PassThru BY_DRIVER.
+ // Its intent is to prevent another SCSI Bus Driver from woking on the same host handle.
+ // So Stop() needs to try to close PassThru if present here.
+ //
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiScsiPassThruProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
} else {
gBS->CloseProtocol (
Controller,
@@ -544,7 +674,7 @@ Returns:
This->DriverBindingHandle,
Controller
);
- gBS->FreePool (ScsiBusDev);
+ FreePool (ScsiBusDev);
return EFI_SUCCESS;
}
@@ -616,7 +746,7 @@ Returns:
);
}
} else {
- gBS->FreePool (ScsiIoDevice);
+ FreePool (ScsiIoDevice);
}
}
@@ -627,30 +757,24 @@ Returns:
return EFI_SUCCESS;
}
+
+/**
+ Retrieves the device type information of the SCSI Controller.
+
+ @param This Protocol instance pointer.
+ @param DeviceType A pointer to the device type information retrieved from
+ the SCSI Controller.
+
+ @retval EFI_SUCCESS Retrieves the device type information successfully.
+ @retval EFI_INVALID_PARAMETER The DeviceType is NULL.
+
+**/
EFI_STATUS
EFIAPI
ScsiGetDeviceType (
IN EFI_SCSI_IO_PROTOCOL *This,
OUT UINT8 *DeviceType
)
-/*++
-
-Routine Description:
-
- Retrieves the device type information of the SCSI Controller.
-
-Arguments:
-
- This - Protocol instance pointer.
- DeviceType - A pointer to the device type information
- retrieved from the SCSI Controller.
-
-Returns:
-
- EFI_SUCCESS - Retrieves the device type information successfully.
- EFI_INVALID_PARAMETER - The DeviceType is NULL.
-
---*/
{
SCSI_IO_DEV *ScsiIoDevice;
@@ -663,6 +787,20 @@ Returns:
return EFI_SUCCESS;
}
+
+/**
+ Retrieves the device location in the SCSI channel.
+
+ @param This Protocol instance pointer.
+ @param Target A pointer to the Target ID of a SCSI device
+ on the SCSI channel.
+ @param Lun A pointer to the LUN of the SCSI device on
+ the SCSI channel.
+
+ @retval EFI_SUCCESS Retrieves the device location successfully.
+ @retval EFI_INVALID_PARAMETER The Target or Lun is NULL.
+
+**/
EFI_STATUS
EFIAPI
ScsiGetDeviceLocation (
@@ -670,26 +808,6 @@ ScsiGetDeviceLocation (
IN OUT UINT8 **Target,
OUT UINT64 *Lun
)
-/*++
-
-Routine Description:
-
- Retrieves the device location in the SCSI channel.
-
-Arguments:
-
- This - Protocol instance pointer.
- Target - A pointer to the Target Array which represents ID of a SCSI device
- on the SCSI channel.
- Lun - A pointer to the LUN of the SCSI device on
- the SCSI channel.
-
-Returns:
-
- EFI_SUCCESS - Retrieves the device location successfully.
- EFI_INVALID_PARAMETER - The Target or Lun is NULL.
-
---*/
{
SCSI_IO_DEV *ScsiIoDevice;
@@ -706,35 +824,37 @@ Returns:
return EFI_SUCCESS;
}
+/**
+ Resets the SCSI Bus that the SCSI Controller is attached to.
+
+ @param This Protocol instance pointer.
+
+ @retval EFI_SUCCESS The SCSI bus is reset successfully.
+ @retval EFI_DEVICE_ERROR Errors encountered when resetting the SCSI bus.
+ @retval EFI_UNSUPPORTED The bus reset operation is not supported by the
+ SCSI Host Controller.
+ @retval EFI_TIMEOUT A timeout occurred while attempting to reset
+ the SCSI bus.
+**/
EFI_STATUS
EFIAPI
ScsiResetBus (
IN EFI_SCSI_IO_PROTOCOL *This
)
-/*++
-
-Routine Description:
-
- Resets the SCSI Bus that the SCSI Controller is attached to.
-
-Arguments:
-
- This - Protocol instance pointer.
-
-Returns:
-
- EFI_SUCCESS - The SCSI bus is reset successfully.
- EFI_DEVICE_ERROR - Errors encountered when resetting the SCSI bus.
- EFI_UNSUPPORTED - The bus reset operation is not supported by the
- SCSI Host Controller.
- EFI_TIMEOUT - A timeout occurred while attempting to reset
- the SCSI bus.
---*/
{
SCSI_IO_DEV *ScsiIoDevice;
ScsiIoDevice = SCSI_IO_DEV_FROM_THIS (This);
+ //
+ // Report Status Code to indicate reset happens
+ //
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (
+ EFI_PROGRESS_CODE,
+ (EFI_IO_BUS_ATA_ATAPI | EFI_IOB_PC_RESET),
+ ScsiIoDevice->ScsiBusDeviceData->DevicePath
+ );
+
if (ScsiIoDevice->ExtScsiSupport){
return ScsiIoDevice->ExtScsiPassThru->ResetChannel (ScsiIoDevice->ExtScsiPassThru);
} else {
@@ -742,36 +862,38 @@ Returns:
}
}
+
+/**
+ Resets the SCSI Controller that the device handle specifies.
+
+ @param This Protocol instance pointer.
+
+ @retval EFI_SUCCESS Reset the SCSI controller successfully.
+ @retval EFI_DEVICE_ERROR Errors are encountered when resetting the SCSI Controller.
+ @retval EFI_UNSUPPORTED The SCSI bus does not support a device reset operation.
+ @retval EFI_TIMEOUT A timeout occurred while attempting to reset the
+ SCSI Controller.
+**/
EFI_STATUS
EFIAPI
ScsiResetDevice (
IN EFI_SCSI_IO_PROTOCOL *This
)
-/*++
-
-Routine Description:
-
- Resets the SCSI Controller that the device handle specifies.
-
-Arguments:
-
- This - Protocol instance pointer.
-
-Returns:
-
- EFI_SUCCESS - Reset the SCSI controller successfully.
- EFI_DEVICE_ERROR - Errors are encountered when resetting the
- SCSI Controller.
- EFI_UNSUPPORTED - The SCSI bus does not support a device
- reset operation.
- EFI_TIMEOUT - A timeout occurred while attempting to
- reset the SCSI Controller.
---*/
{
SCSI_IO_DEV *ScsiIoDevice;
UINT8 Target[TARGET_MAX_BYTES];
ScsiIoDevice = SCSI_IO_DEV_FROM_THIS (This);
+
+ //
+ // Report Status Code to indicate reset happens
+ //
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (
+ EFI_PROGRESS_CODE,
+ (EFI_IO_BUS_ATA_ATAPI | EFI_IOB_PC_RESET),
+ ScsiIoDevice->ScsiBusDeviceData->DevicePath
+ );
+
CopyMem (Target,&ScsiIoDevice->Pun, TARGET_MAX_BYTES);
@@ -790,76 +912,71 @@ Returns:
}
}
-EFI_STATUS
-EFIAPI
-ScsiExecuteSCSICommand (
- IN EFI_SCSI_IO_PROTOCOL *This,
- IN OUT EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet,
- IN EFI_EVENT Event OPTIONAL
- )
-/*++
-
-Routine Description:
+/**
Sends a SCSI Request Packet to the SCSI Controller for execution.
-
-Arguments:
- This - Protocol instance pointer.
- Packet - The SCSI request packet to send to the SCSI
+ @param This Protocol instance pointer.
+ @param CommandPacket The SCSI request packet to send to the SCSI
Controller specified by the device handle.
- Event - If the SCSI bus where the SCSI device is attached
- does not support non-blocking I/O, then Event is
- ignored, and blocking I/O is performed.
+ @param Event If the SCSI bus where the SCSI device is attached
+ does not support non-blocking I/O, then Event is
+ ignored, and blocking I/O is performed.
If Event is NULL, then blocking I/O is performed.
- If Event is not NULL and non-blocking I/O is
+ 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 SCSI Request
Packet completes.
-Returns:
-
- EFI_SUCCESS - The SCSI Request Packet was sent by the host
- successfully, and TransferLength bytes were
- transferred to/from DataBuffer.See
- HostAdapterStatus, TargetStatus,
- SenseDataLength, and SenseData in that order
- for additional status information.
- EFI_BAD_BUFFER_SIZE - The SCSI Request Packet was executed,
- but the entire DataBuffer could not be transferred.
- The actual number of bytes transferred is returned
- in TransferLength. See HostAdapterStatus,
- TargetStatus, SenseDataLength, and SenseData in
- that order for additional status information.
- EFI_NOT_READY - The SCSI Request Packet could not be sent because
- there are too many SCSI Command Packets already
- queued.The caller may retry again later.
- EFI_DEVICE_ERROR - A device error occurred while attempting to send
- the SCSI Request Packet. See HostAdapterStatus,
- TargetStatus, SenseDataLength, and SenseData in
- that order for additional status information.
- EFI_INVALID_PARAMETER - The contents of CommandPacket are invalid.
- The SCSI Request Packet was not sent, so no
- additional status information is available.
- EFI_UNSUPPORTED - The command described by the SCSI Request Packet
- is not supported by the SCSI initiator(i.e., SCSI
- Host Controller). The SCSI Request Packet was not
- sent, so no additional status information is
- available.
- EFI_TIMEOUT - A timeout occurred while waiting for the SCSI
- Request Packet to execute. See HostAdapterStatus,
- TargetStatus, SenseDataLength, and SenseData in
- that order for additional status information.
---*/
+
+ @retval EFI_SUCCESS The SCSI Request Packet was sent by the host
+ successfully, and TransferLength bytes were
+ transferred to/from DataBuffer.See
+ HostAdapterStatus, TargetStatus,
+ SenseDataLength, and SenseData in that order
+ for additional status information.
+ @retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed,
+ but the entire DataBuffer could not be transferred.
+ The actual number of bytes transferred is returned
+ in TransferLength. See HostAdapterStatus,
+ TargetStatus, SenseDataLength, and SenseData in
+ that order for additional status information.
+ @retval EFI_NOT_READY The SCSI Request Packet could not be sent because
+ there are too many SCSI Command Packets already
+ queued.The caller may retry again later.
+ @retval EFI_DEVICE_ERROR A device error occurred while attempting to send
+ the SCSI Request Packet. See HostAdapterStatus,
+ TargetStatus, SenseDataLength, and SenseData in
+ that order for additional status information.
+ @retval EFI_INVALID_PARAMETER The contents of CommandPacket are invalid.
+ The SCSI Request Packet was not sent, so no
+ additional status information is available.
+ @retval EFI_UNSUPPORTED The command described by the SCSI Request Packet
+ is not supported by the SCSI initiator(i.e., SCSI
+ Host Controller). The SCSI Request Packet was not
+ sent, so no additional status information is
+ available.
+ @retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI
+ Request Packet to execute. See HostAdapterStatus,
+ TargetStatus, SenseDataLength, and SenseData in
+ that order for additional status information.
+**/
+EFI_STATUS
+EFIAPI
+ScsiExecuteSCSICommand (
+ IN EFI_SCSI_IO_PROTOCOL *This,
+ IN OUT EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet,
+ IN EFI_EVENT Event OPTIONAL
+ )
{
SCSI_IO_DEV *ScsiIoDevice;
EFI_STATUS Status;
UINT8 Target[TARGET_MAX_BYTES];
EFI_EVENT PacketEvent;
EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *ExtRequestPacket;
- SCSI_EVENT_DATA EventData;
+ SCSI_EVENT_DATA EventData;
PacketEvent = NULL;
-
+
if (Packet == NULL) {
return EFI_INVALID_PARAMETER;
}
@@ -869,35 +986,53 @@ Returns:
if (ScsiIoDevice->ExtScsiSupport) {
ExtRequestPacket = (EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *) Packet;
- Status = ScsiIoDevice->ExtScsiPassThru->PassThru (
- ScsiIoDevice->ExtScsiPassThru,
- Target,
- ScsiIoDevice->Lun,
- ExtRequestPacket,
- Event
- );
+
+ if (((ScsiIoDevice->ExtScsiPassThru->Mode->Attributes & EFI_SCSI_PASS_THRU_ATTRIBUTES_NONBLOCKIO) != 0) && (Event != NULL)) {
+ Status = ScsiIoDevice->ExtScsiPassThru->PassThru (
+ ScsiIoDevice->ExtScsiPassThru,
+ Target,
+ ScsiIoDevice->Lun,
+ ExtRequestPacket,
+ Event
+ );
+ } else {
+ //
+ // If there's no event or the SCSI Device doesn't support NON-BLOCKING,
+ // let the 'Event' parameter for PassThru() be NULL.
+ //
+ Status = ScsiIoDevice->ExtScsiPassThru->PassThru (
+ ScsiIoDevice->ExtScsiPassThru,
+ Target,
+ ScsiIoDevice->Lun,
+ ExtRequestPacket,
+ NULL
+ );
+ if ((!EFI_ERROR(Status)) && (Event != NULL)) {
+ //
+ // Signal Event to tell caller to pick up the SCSI IO packet if the
+ // PassThru() succeeds.
+ //
+ gBS->SignalEvent (Event);
+ }
+ }
} else {
- Status = gBS->AllocatePool (
- EfiBootServicesData,
- sizeof(EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET),
- (VOID**)&WorkingBuffer
- );
+ mWorkingBuffer = AllocatePool (sizeof(EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET));
- if (EFI_ERROR (Status)) {
+ if (mWorkingBuffer == NULL) {
return EFI_DEVICE_ERROR;
}
//
// Convert package into EFI1.0, EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET.
//
- Status = ScsiioToPassThruPacket(Packet, (EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET*)WorkingBuffer);
+ Status = ScsiioToPassThruPacket(Packet, (EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET*)mWorkingBuffer);
if (EFI_ERROR(Status)) {
- gBS->FreePool(WorkingBuffer);
+ FreePool(mWorkingBuffer);
return Status;
}
- if ((ScsiIoDevice->ScsiPassThru->Mode->Attributes & EFI_SCSI_PASS_THRU_ATTRIBUTES_NONBLOCKIO) && (Event != NULL)) {
+ if (((ScsiIoDevice->ScsiPassThru->Mode->Attributes & EFI_SCSI_PASS_THRU_ATTRIBUTES_NONBLOCKIO) != 0) && (Event != NULL)) {
EventData.Data1 = (VOID*)Packet;
EventData.Data2 = Event;
//
@@ -905,13 +1040,13 @@ Returns:
//
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
- TPL_CALLBACK,
+ TPL_NOTIFY,
NotifyFunction,
&EventData,
&PacketEvent
);
if (EFI_ERROR(Status)) {
- gBS->FreePool(WorkingBuffer);
+ FreePool(mWorkingBuffer);
return Status;
}
@@ -919,12 +1054,12 @@ Returns:
ScsiIoDevice->ScsiPassThru,
ScsiIoDevice->Pun.ScsiId.Scsi,
ScsiIoDevice->Lun,
- WorkingBuffer,
+ mWorkingBuffer,
PacketEvent
);
if (EFI_ERROR(Status)) {
- gBS->FreePool(WorkingBuffer);
+ FreePool(mWorkingBuffer);
gBS->CloseEvent(PacketEvent);
return Status;
}
@@ -938,71 +1073,121 @@ Returns:
ScsiIoDevice->ScsiPassThru,
ScsiIoDevice->Pun.ScsiId.Scsi,
ScsiIoDevice->Lun,
- WorkingBuffer,
- Event
+ mWorkingBuffer,
+ NULL
);
if (EFI_ERROR(Status)) {
- gBS->FreePool(WorkingBuffer);
+ FreePool(mWorkingBuffer);
return Status;
}
- PassThruToScsiioPacket((EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET*)WorkingBuffer,Packet);
+ PassThruToScsiioPacket((EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET*)mWorkingBuffer,Packet);
//
// After converting EFI1.0 PassThru Packet back to UEFI2.0 SCSI IO Packet,
- // free WorkingBuffer.
+ // free mWorkingBuffer.
+ //
+ FreePool(mWorkingBuffer);
+
+ //
+ // Signal Event to tell caller to pick up the SCSI IO Packet.
//
- gBS->FreePool(WorkingBuffer);
+ if (Event != NULL) {
+ gBS->SignalEvent (Event);
+ }
}
}
return Status;
}
-EFI_STATUS
-EFIAPI
-ScsiScanCreateDevice (
- EFI_DRIVER_BINDING_PROTOCOL *This,
- EFI_HANDLE Controller,
- SCSI_TARGET_ID *TargetId,
- UINT64 Lun,
- SCSI_BUS_DEVICE *ScsiBusDev
- )
-/*++
-
-Routine Description:
+/**
Scan SCSI Bus to discover the device, and attach ScsiIoProtocol to it.
-Arguments:
-
- This - Protocol instance pointer
- Controller - Controller handle
- Pun - The Pun of the SCSI device on the SCSI channel.
- Lun - The Lun of the SCSI device on the SCSI channel.
- ScsiBusDev - The pointer of SCSI_BUS_DEVICE
-
-Returns:
+ @param This Protocol instance pointer
+ @param Controller Controller handle
+ @param TargetId Tartget to be scanned
+ @param Lun The Lun of the SCSI device on the SCSI channel.
+ @param ScsiBusDev The pointer of SCSI_BUS_DEVICE
- EFI_SUCCESS - Successfully to discover the device and attach ScsiIoProtocol to it.
- EFI_OUT_OF_RESOURCES - Fail to discover the device.
+ @retval EFI_SUCCESS Successfully to discover the device and attach
+ ScsiIoProtocol to it.
+ @retval EFI_OUT_OF_RESOURCES Fail to discover the device.
---*/
+**/
+EFI_STATUS
+EFIAPI
+ScsiScanCreateDevice (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN SCSI_TARGET_ID *TargetId,
+ IN UINT64 Lun,
+ IN OUT SCSI_BUS_DEVICE *ScsiBusDev
+ )
{
EFI_STATUS Status;
SCSI_IO_DEV *ScsiIoDevice;
EFI_DEVICE_PATH_PROTOCOL *ScsiDevicePath;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+ EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath;
+ EFI_HANDLE DeviceHandle;
- Status = gBS->AllocatePool (
- EfiBootServicesData,
- sizeof (SCSI_IO_DEV),
- (VOID **) &ScsiIoDevice
- );
- if (EFI_ERROR (Status)) {
+ DevicePath = NULL;
+ RemainingDevicePath = NULL;
+ ScsiDevicePath = NULL;
+ ScsiIoDevice = NULL;
+
+ //
+ // Build Device Path
+ //
+ if (ScsiBusDev->ExtScsiSupport){
+ Status = ScsiBusDev->ExtScsiInterface->BuildDevicePath (
+ ScsiBusDev->ExtScsiInterface,
+ &TargetId->ScsiId.ExtScsi[0],
+ Lun,
+ &ScsiDevicePath
+ );
+ } else {
+ Status = ScsiBusDev->ScsiInterface->BuildDevicePath (
+ ScsiBusDev->ScsiInterface,
+ TargetId->ScsiId.Scsi,
+ Lun,
+ &ScsiDevicePath
+ );
+ }
+
+ if (EFI_ERROR(Status)) {
return Status;
}
- ZeroMem (ScsiIoDevice, sizeof (SCSI_IO_DEV));
+ DevicePath = AppendDevicePathNode (
+ ScsiBusDev->DevicePath,
+ ScsiDevicePath
+ );
+
+ if (DevicePath == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto ErrorExit;
+ }
+
+ DeviceHandle = NULL;
+ RemainingDevicePath = DevicePath;
+ Status = gBS->LocateDevicePath (&gEfiDevicePathProtocolGuid, &RemainingDevicePath, &DeviceHandle);
+ if (!EFI_ERROR (Status) && (DeviceHandle != NULL) && IsDevicePathEnd(RemainingDevicePath)) {
+ //
+ // The device has been started, directly return to fast boot.
+ //
+ Status = EFI_ALREADY_STARTED;
+ goto ErrorExit;
+ }
+
+ ScsiIoDevice = AllocateZeroPool (sizeof (SCSI_IO_DEV));
+ if (ScsiIoDevice == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto ErrorExit;
+ }
ScsiIoDevice->Signature = SCSI_IO_DEV_SIGNATURE;
+ ScsiIoDevice->ScsiBusDeviceData = ScsiBusDev;
CopyMem(&ScsiIoDevice->Pun, TargetId, TARGET_MAX_BYTES);
ScsiIoDevice->Lun = Lun;
@@ -1023,55 +1208,22 @@ Returns:
ScsiIoDevice->ScsiIo.ResetDevice = ScsiResetDevice;
ScsiIoDevice->ScsiIo.ExecuteScsiCommand = ScsiExecuteSCSICommand;
-
- if (!DiscoverScsiDevice (ScsiIoDevice)) {
- gBS->FreePool (ScsiIoDevice);
- return EFI_OUT_OF_RESOURCES;
- }
-
- //
- // Set Device Path
- //
- if (ScsiIoDevice->ExtScsiSupport){
- Status = ScsiIoDevice->ExtScsiPassThru->BuildDevicePath (
- ScsiIoDevice->ExtScsiPassThru,
- &ScsiIoDevice->Pun.ScsiId.ExtScsi[0],
- ScsiIoDevice->Lun,
- &ScsiDevicePath
- );
- if (Status == EFI_OUT_OF_RESOURCES) {
- gBS->FreePool (ScsiIoDevice);
- return Status;
- }
- } else {
- Status = ScsiIoDevice->ScsiPassThru->BuildDevicePath (
- ScsiIoDevice->ScsiPassThru,
- ScsiIoDevice->Pun.ScsiId.Scsi,
- ScsiIoDevice->Lun,
- &ScsiDevicePath
- );
- if (Status == EFI_OUT_OF_RESOURCES) {
- gBS->FreePool (ScsiIoDevice);
- return Status;
- }
- }
-
- ScsiIoDevice->DevicePath = AppendDevicePathNode (
- ScsiBusDev->DevicePath,
- ScsiDevicePath
- );
//
- // The memory space for ScsiDevicePath is allocated in
- // ScsiPassThru->BuildDevicePath() function; It is no longer used
- // after EfiAppendDevicePathNode,so free the memory it occupies.
+ // Report Status Code here since the new SCSI device will be discovered
//
- gBS->FreePool (ScsiDevicePath);
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (
+ EFI_PROGRESS_CODE,
+ (EFI_IO_BUS_SCSI | EFI_IOB_PC_ENABLE),
+ ScsiBusDev->DevicePath
+ );
- if (ScsiIoDevice->DevicePath == NULL) {
- gBS->FreePool (ScsiIoDevice);
- return EFI_OUT_OF_RESOURCES;
+ if (!DiscoverScsiDevice (ScsiIoDevice)) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto ErrorExit;
}
+ ScsiIoDevice->DevicePath = DevicePath;
+
Status = gBS->InstallMultipleProtocolInterfaces (
&ScsiIoDevice->Handle,
&gEfiDevicePathProtocolGuid,
@@ -1081,146 +1233,189 @@ Returns:
NULL
);
if (EFI_ERROR (Status)) {
- gBS->FreePool (ScsiIoDevice);
- return EFI_OUT_OF_RESOURCES;
+ goto ErrorExit;
} else {
if (ScsiBusDev->ExtScsiSupport) {
gBS->OpenProtocol (
- Controller,
- &gEfiExtScsiPassThruProtocolGuid,
- (VOID **) &(ScsiBusDev->ExtScsiInterface),
- This->DriverBindingHandle,
- ScsiIoDevice->Handle,
- EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
- );
+ Controller,
+ &gEfiExtScsiPassThruProtocolGuid,
+ (VOID **) &(ScsiBusDev->ExtScsiInterface),
+ This->DriverBindingHandle,
+ ScsiIoDevice->Handle,
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+ );
} else {
gBS->OpenProtocol (
- Controller,
- &gEfiScsiPassThruProtocolGuid,
- (VOID **) &(ScsiBusDev->ScsiInterface),
- This->DriverBindingHandle,
- ScsiIoDevice->Handle,
- EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
- );
+ Controller,
+ &gEfiScsiPassThruProtocolGuid,
+ (VOID **) &(ScsiBusDev->ScsiInterface),
+ This->DriverBindingHandle,
+ ScsiIoDevice->Handle,
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+ );
}
}
return EFI_SUCCESS;
-}
-BOOLEAN
-EFIAPI
-DiscoverScsiDevice (
- SCSI_IO_DEV *ScsiIoDevice
- )
-/*++
+ErrorExit:
-Routine Description:
+ //
+ // The memory space for ScsiDevicePath is allocated in
+ // ScsiPassThru->BuildDevicePath() function; It is no longer used
+ // after AppendDevicePathNode,so free the memory it occupies.
+ //
+ FreePool (ScsiDevicePath);
- Discovery SCSI Device
+ if (DevicePath != NULL) {
+ FreePool (DevicePath);
+ }
-Arguments:
+ if (ScsiIoDevice != NULL) {
+ FreePool (ScsiIoDevice);
+ }
- ScsiIoDevice - The pointer of SCSI_IO_DEV
+ return Status;
+}
-Returns:
- TRUE - Find SCSI Device and verify it.
- FALSE - Unable to find SCSI Device.
+/**
+ Discovery SCSI Device
+
+ @param ScsiIoDevice The pointer of SCSI_IO_DEV
---*/
+ @retval TRUE Find SCSI Device and verify it.
+ @retval FALSE Unable to find SCSI Device.
+
+**/
+BOOLEAN
+DiscoverScsiDevice (
+ IN OUT SCSI_IO_DEV *ScsiIoDevice
+ )
{
EFI_STATUS Status;
UINT32 InquiryDataLength;
UINT8 SenseDataLength;
UINT8 HostAdapterStatus;
UINT8 TargetStatus;
- EFI_SCSI_SENSE_DATA SenseData;
- EFI_SCSI_INQUIRY_DATA InquiryData;
+ EFI_SCSI_INQUIRY_DATA *InquiryData;
+ EFI_SCSI_SENSE_DATA *SenseData;
+ UINT8 MaxRetry;
+ UINT8 Index;
+ BOOLEAN ScsiDeviceFound;
HostAdapterStatus = 0;
TargetStatus = 0;
+ SenseData = NULL;
+
+ InquiryData = AllocateAlignedBuffer (ScsiIoDevice, sizeof (EFI_SCSI_INQUIRY_DATA));
+ if (InquiryData == NULL) {
+ ScsiDeviceFound = FALSE;
+ goto Done;
+ }
+
+ SenseData = AllocateAlignedBuffer (
+ ScsiIoDevice,
+ sizeof (EFI_SCSI_SENSE_DATA)
+ );
+ if (SenseData == NULL) {
+ ScsiDeviceFound = FALSE;
+ goto Done;
+ }
+
//
// Using Inquiry command to scan for the device
//
InquiryDataLength = sizeof (EFI_SCSI_INQUIRY_DATA);
SenseDataLength = sizeof (EFI_SCSI_SENSE_DATA);
+ ZeroMem (InquiryData, InquiryDataLength);
+ ZeroMem (SenseData, SenseDataLength);
+
+ MaxRetry = 2;
+ for (Index = 0; Index < MaxRetry; Index++) {
+ Status = ScsiInquiryCommand (
+ &ScsiIoDevice->ScsiIo,
+ SCSI_BUS_TIMEOUT,
+ SenseData,
+ &SenseDataLength,
+ &HostAdapterStatus,
+ &TargetStatus,
+ (VOID *) InquiryData,
+ &InquiryDataLength,
+ FALSE
+ );
+ if (!EFI_ERROR (Status)) {
+ if ((HostAdapterStatus == EFI_SCSI_IO_STATUS_HOST_ADAPTER_OK) &&
+ (TargetStatus == EFI_SCSI_IO_STATUS_TARGET_CHECK_CONDITION) &&
+ (SenseData->Error_Code == 0x70) &&
+ (SenseData->Sense_Key == EFI_SCSI_SK_ILLEGAL_REQUEST)) {
+ ScsiDeviceFound = FALSE;
+ goto Done;
+ }
+ break;
+ }
+ if ((Status == EFI_BAD_BUFFER_SIZE) ||
+ (Status == EFI_INVALID_PARAMETER) ||
+ (Status == EFI_UNSUPPORTED)) {
+ ScsiDeviceFound = FALSE;
+ goto Done;
+ }
+ }
- Status = ScsiInquiryCommand (
- &ScsiIoDevice->ScsiIo,
- EFI_SCSI_STALL_SECONDS (1),
- (VOID *) &SenseData,
- &SenseDataLength,
- &HostAdapterStatus,
- &TargetStatus,
- (VOID *) &InquiryData,
- &InquiryDataLength,
- FALSE
- );
- if (EFI_ERROR (Status)) {
- //
- // ParseSenseData (&SenseData,SenseDataLength);
- //
- return FALSE;
+ if (Index == MaxRetry) {
+ ScsiDeviceFound = FALSE;
+ goto Done;
}
+
//
// Retrieved inquiry data successfully
//
- if ((InquiryData.Peripheral_Qualifier != 0) &&
- (InquiryData.Peripheral_Qualifier != 3)) {
- return FALSE;
- }
-
- if (InquiryData.Peripheral_Qualifier == 3) {
- if (InquiryData.Peripheral_Type != 0x1f) {
- return FALSE;
- }
+ if (InquiryData->Peripheral_Qualifier != 0) {
+ ScsiDeviceFound = FALSE;
+ goto Done;
}
- if (0x1e >= InquiryData.Peripheral_Type && InquiryData.Peripheral_Type >= 0xa) {
- return FALSE;
+ if (0x1e >= InquiryData->Peripheral_Type && InquiryData->Peripheral_Type >= 0xa) {
+ ScsiDeviceFound = FALSE;
+ goto Done;
}
//
// valid device type and peripheral qualifier combination.
//
- ScsiIoDevice->ScsiDeviceType = InquiryData.Peripheral_Type;
- ScsiIoDevice->RemovableDevice = InquiryData.RMB;
- if (InquiryData.Version == 0) {
+ ScsiIoDevice->ScsiDeviceType = InquiryData->Peripheral_Type;
+ ScsiIoDevice->RemovableDevice = InquiryData->Rmb;
+ if (InquiryData->Version == 0) {
ScsiIoDevice->ScsiVersion = 0;
} else {
//
// ANSI-approved version
//
- ScsiIoDevice->ScsiVersion = (UINT8) (InquiryData.Version & 0x03);
+ ScsiIoDevice->ScsiVersion = (UINT8) (InquiryData->Version & 0x07);
}
- return TRUE;
+ ScsiDeviceFound = TRUE;
+
+Done:
+ FreeAlignedBuffer (SenseData, sizeof (EFI_SCSI_SENSE_DATA));
+ FreeAlignedBuffer (InquiryData, sizeof (EFI_SCSI_INQUIRY_DATA));
+
+ return ScsiDeviceFound;
}
+/**
+ Convert EFI_SCSI_IO_SCSI_REQUEST_PACKET packet to EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET packet.
+
+ @param Packet The pointer of EFI_SCSI_IO_SCSI_REQUEST_PACKET
+ @param CommandPacket The pointer of EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET
+
+**/
EFI_STATUS
EFIAPI
ScsiioToPassThruPacket (
IN EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet,
- IN OUT EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *CommandPacket
+ OUT EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *CommandPacket
)
-/*++
-
-Routine Description:
-
- Convert EFI_SCSI_IO_SCSI_REQUEST_PACKET packet to
- EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET packet
-
-Arguments:
-
- Packet - The pointer of EFI_SCSI_IO_SCSI_REQUEST_PACKET
- CommandPacket - The pointer of EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET
-
-Returns:
-
- NONE
-
---*/
{
//
//EFI 1.10 doesn't support Bi-Direction Command.
@@ -1251,29 +1446,19 @@ Returns:
}
+/**
+ Convert EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET packet to EFI_SCSI_IO_SCSI_REQUEST_PACKET packet.
+
+ @param ScsiPacket The pointer of EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET
+ @param Packet The pointer of EFI_SCSI_IO_SCSI_REQUEST_PACKET
+
+**/
EFI_STATUS
EFIAPI
PassThruToScsiioPacket (
IN EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *ScsiPacket,
- IN OUT EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet
+ OUT EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet
)
-/*++
-
-Routine Description:
-
- Convert EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET packet to
- EFI_SCSI_IO_SCSI_REQUEST_PACKET packet
-
-Arguments:
-
- ScsiPacket - The pointer of EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET
- Packet - The pointer of EFI_SCSI_IO_SCSI_REQUEST_PACKET
-
-Returns:
-
- NONE
-
---*/
{
Packet->Timeout = ScsiPacket->Timeout;
Packet->Cdb = ScsiPacket->Cdb;
@@ -1295,31 +1480,20 @@ Returns:
return EFI_SUCCESS;
}
+/**
+ Notify Function in which convert EFI1.0 PassThru Packet back to UEF2.0
+ SCSI IO Packet.
+ @param Event The instance of EFI_EVENT.
+ @param Context The parameter passed in.
+**/
VOID
EFIAPI
NotifyFunction (
- EFI_EVENT Event,
- VOID *Context
+ IN EFI_EVENT Event,
+ IN VOID *Context
)
-/*++
-
-Routine Description:
-
- Notify Function in which convert EFI1.0 PassThru Packet back to UEF2.0
- SCSI IO Packet.
-
-Arguments:
-
- Event - The instance of EFI_EVENT.
- Context - The parameter passed in.
-
-Returns:
-
- NONE
-
---*/
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet;
EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *ScsiPacket;
@@ -1328,7 +1502,7 @@ Returns:
PassData = (SCSI_EVENT_DATA*)Context;
Packet = (EFI_SCSI_IO_SCSI_REQUEST_PACKET *)PassData->Data1;
- ScsiPacket = (EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET*)WorkingBuffer;
+ ScsiPacket = (EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET*)mWorkingBuffer;
//
// Convert EFI1.0 PassThru packet to UEFI2.0 SCSI IO Packet.
@@ -1337,9 +1511,9 @@ Returns:
//
// After converting EFI1.0 PassThru Packet back to UEFI2.0 SCSI IO Packet,
- // free WorkingBuffer.
+ // free mWorkingBuffer.
//
- gBS->FreePool(WorkingBuffer);
+ gBS->FreePool(mWorkingBuffer);
//
// Signal Event to tell caller to pick up UEFI2.0 SCSI IO Packet.
@@ -1348,3 +1522,4 @@ Returns:
gBS->CloseEvent(Event);
gBS->SignalEvent(CallerEvent);
}
+