diff options
Diffstat (limited to 'MdeModulePkg/Universal/Network/IScsiDxe/IScsiExtScsiPassThru.c')
| -rw-r--r-- | MdeModulePkg/Universal/Network/IScsiDxe/IScsiExtScsiPassThru.c | 401 |
1 files changed, 401 insertions, 0 deletions
diff --git a/MdeModulePkg/Universal/Network/IScsiDxe/IScsiExtScsiPassThru.c b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiExtScsiPassThru.c new file mode 100644 index 0000000000..2729c3b429 --- /dev/null +++ b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiExtScsiPassThru.c @@ -0,0 +1,401 @@ +/*++
+
+Copyright (c) 2004 - 2007, 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
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+Module Name:
+
+ IScsiExtScsiPassThru.c
+
+Abstract:
+
+--*/
+
+#include "IScsiImpl.h"
+
+EFI_STATUS
+EFIAPI
+IScsiExtScsiPassThruFunction (
+ IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
+ IN UINT8 *Target,
+ IN UINT64 Lun,
+ IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet,
+ IN EFI_EVENT Event OPTIONAL
+ )
+/*++
+
+Routine Description:
+
+ This function sends out the SCSI command via iSCSI transport layer and returned
+ back the data received from the iSCSI target.
+
+Arguments:
+
+ This - The EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
+ Target - The Target ID of device to send the SCSI Request Packet.
+ Lun - The LUN of the device to send the SCSI Request Packet.
+ Packet - The SCSI Request Packet to send to the device.
+ Event - The event used in non-blocking mode, it should be always NULL.
+
+Returns:
+
+ EFI_STATUS
+
+--*/
+{
+ if (Target[0] != 0) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if ((Packet == NULL) || (Packet->Cdb == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ return IScsiExecuteScsiCommand (This, Target, Lun, Packet);
+}
+
+EFI_STATUS
+EFIAPI
+IScsiExtScsiPassThruGetNextTargetLun (
+ IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
+ IN OUT UINT8 **Target,
+ IN OUT UINT64 *Lun
+ )
+/*++
+
+Routine Description:
+
+ Retrieve the list of legal Target IDs for SCSI devices on a SCSI channel.
+
+Arguments:
+
+ This - The EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance..
+ Target - On input, a pointer to the Target ID of a SCSI device present on the
+ SCSI channel. On output, a pointer to the Target ID of the next SCSI
+ device present on a SCSI channel. An input value of 0xFFFFFFFF
+ retrieves the Target ID of the first SCSI device present on a SCSI channel.
+ Lun - On input, a pointer to the LUN of a SCSI device present on the SCSI
+ channel. On output, a pointer to the LUN of the next SCSI device present on
+ a SCSI channel.
+
+Returns:
+
+ EFI_SUCCESS - The Target ID and Lun of the next SCSI device
+ on the SCSI channel was returned in Target and Lun.
+ EFI_NOT_FOUND - There are no more SCSI devices on this SCSI channel.
+ EFI_INVALID_PARAMETER - Target is not 0xFFFFFFFF,and Target and Lun were not
+ returned on a previous call to GetNextDevice().
+
+--*/
+{
+ ISCSI_DRIVER_DATA *Private;
+ ISCSI_SESSION_CONFIG_NVDATA *ConfigNvData;
+ UINT8 TargetId[TARGET_MAX_BYTES];
+
+ Private = ISCSI_DRIVER_DATA_FROM_EXT_SCSI_PASS_THRU (This);
+ ConfigNvData = &Private->Session.ConfigData.NvData;
+
+ if ((*Target)[0] == 0 && (NetCompareMem (Lun, ConfigNvData->BootLun, sizeof (UINT64)) == 0)) {
+ //
+ // Only one <Target, Lun> pair per iSCSI Driver instance.
+ //
+ return EFI_NOT_FOUND;
+ }
+
+ NetSetMem (TargetId, TARGET_MAX_BYTES, 0xFF);
+ if (NetCompareMem (*Target, TargetId, TARGET_MAX_BYTES) == 0) {
+ (*Target)[0] = 0;
+ NetCopyMem (Lun, ConfigNvData->BootLun, sizeof (UINT64));
+
+ return EFI_SUCCESS;
+ }
+
+ return EFI_INVALID_PARAMETER;
+}
+
+EFI_STATUS
+EFIAPI
+IScsiExtScsiPassThruBuildDevicePath (
+ IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
+ IN UINT8 *Target,
+ IN UINT64 Lun,
+ IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
+ )
+/*++
+
+Routine Description:
+
+ Allocate and build a device path node for a SCSI device on a SCSI channel.
+
+Arguments:
+
+ This - Protocol instance pointer.
+ Target - The Target ID of the SCSI device for which
+ a device path node is to be allocated and built.
+ Lun - The LUN of the SCSI device for which a device
+ path node is to be allocated and built.
+ DevicePath - A pointer to a single device path node that
+ describes the SCSI device specified by
+ Target and Lun. This function is responsible
+ for allocating the buffer DevicePath with the boot
+ service AllocatePool(). It is the caller's
+ responsibility to free DevicePath when the caller
+ is finished with DevicePath.
+
+Returns:
+
+ EFI_SUCCESS - The device path node that describes the SCSI device
+ specified by Target and Lun was allocated and
+ returned in DevicePath.
+ EFI_NOT_FOUND - The SCSI devices specified by Target and Lun does
+ not exist on the SCSI channel.
+ EFI_INVALID_PARAMETER - DevicePath is NULL.
+ EFI_OUT_OF_RESOURCES - There are not enough resources to allocate
+ DevicePath.
+
+--*/
+{
+ ISCSI_DRIVER_DATA *Private;
+ ISCSI_SESSION *Session;
+ ISCSI_SESSION_CONFIG_NVDATA *ConfigNvData;
+ ISCSI_CHAP_AUTH_CONFIG_NVDATA *AuthConfig;
+ EFI_DEV_PATH *Node;
+ UINTN DevPathNodeLen;
+
+ if ((DevicePath == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (Target[0] != 0) {
+ return EFI_NOT_FOUND;
+ }
+
+ Private = ISCSI_DRIVER_DATA_FROM_EXT_SCSI_PASS_THRU (This);
+ Session = &Private->Session;
+ ConfigNvData = &Session->ConfigData.NvData;
+ AuthConfig = &Session->AuthData.AuthConfig;
+
+ if (NetCompareMem (&Lun, ConfigNvData->BootLun, sizeof (UINT64)) != 0) {
+ return EFI_NOT_FOUND;
+ }
+
+ DevPathNodeLen = sizeof (ISCSI_DEVICE_PATH) + AsciiStrLen (ConfigNvData->TargetName) + 1;
+ Node = NetAllocatePool (DevPathNodeLen);
+ if (Node == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ Node->DevPath.Type = MESSAGING_DEVICE_PATH;
+ Node->DevPath.SubType = MSG_ISCSI_DP;
+ SetDevicePathNodeLength (&Node->DevPath, DevPathNodeLen);
+
+ //
+ // 0 for TCP, others are reserved.
+ //
+ Node->Iscsi.NetworkProtocol = 0;
+
+ Node->Iscsi.LoginOption = 0;
+ switch (AuthConfig->CHAPType) {
+ case ISCSI_CHAP_NONE:
+ Node->Iscsi.LoginOption |= 0x0800;
+ break;
+
+ case ISCSI_CHAP_UNI:
+ Node->Iscsi.LoginOption |= 0x1000;
+ break;
+
+ default:
+ break;
+ }
+
+ NetCopyMem (&Node->Iscsi.Lun, ConfigNvData->BootLun, sizeof (UINT64));
+ Node->Iscsi.TargetPortalGroupTag = Session->TargetPortalGroupTag;
+ AsciiStrCpy ((CHAR8 *) Node + sizeof (ISCSI_DEVICE_PATH), ConfigNvData->TargetName);
+
+ *DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) Node;
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+IScsiExtScsiPassThruGetTargetLun (
+ IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
+ OUT UINT8 **Target,
+ OUT UINT64 *Lun
+ )
+/*++
+
+Routine Description:
+
+ Translate a device path node to a Target ID and LUN.
+
+Arguments:
+
+ This - Protocol instance pointer.
+ DevicePath - A pointer to the device path node that
+ describes a SCSI device on the SCSI channel.
+ Target - A pointer to the Target ID of a SCSI device
+ on the SCSI channel.
+ Lun - A pointer to the LUN of a SCSI device on
+ the SCSI channel.
+Returns:
+
+ EFI_SUCCESS - DevicePath was successfully translated to a
+ Target ID and LUN, and they were returned
+ in Target and Lun.
+ EFI_INVALID_PARAMETER - DevicePath/Target/Lun is NULL.
+ EFI_UNSUPPORTED - This driver does not support the device path
+ node type in DevicePath.
+ EFI_NOT_FOUND - A valid translation from DevicePath to a
+ Target ID and LUN does not exist.
+
+--*/
+{
+ ISCSI_DRIVER_DATA *Private;
+ ISCSI_SESSION_CONFIG_NVDATA *ConfigNvData;
+
+ if ((DevicePath == NULL) || (Target == NULL) || (Lun == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if ((DevicePath->Type != MESSAGING_DEVICE_PATH) ||
+ (DevicePath->SubType != MSG_ISCSI_DP) ||
+ (DevicePathNodeLength (DevicePath) <= sizeof (ISCSI_DEVICE_PATH))
+ ) {
+ return EFI_UNSUPPORTED;
+ }
+
+ Private = ISCSI_DRIVER_DATA_FROM_EXT_SCSI_PASS_THRU (This);
+ ConfigNvData = &Private->Session.ConfigData.NvData;
+
+ NetZeroMem (*Target, TARGET_MAX_BYTES);
+
+ if (AsciiStrCmp (ConfigNvData->TargetName, (CHAR8 *) DevicePath + sizeof (ISCSI_DEVICE_PATH)) != 0) {
+ return EFI_UNSUPPORTED;
+ }
+
+ NetCopyMem (Lun, ConfigNvData->BootLun, sizeof (UINT64));
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+IScsiExtScsiPassThruResetChannel (
+ IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This
+ )
+/*++
+
+Routine Description:
+
+ Resets a SCSI channel.This operation resets all the SCSI devices connected to
+ the SCSI channel.
+
+Arguments:
+
+ This - Protocol instance pointer.
+
+Returns:
+
+ EFI_UNSUPPORTED - It's not supported.
+
+--*/
+{
+ return EFI_UNSUPPORTED;
+}
+
+EFI_STATUS
+EFIAPI
+IScsiExtScsiPassThruResetTargetLun (
+ IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
+ IN UINT8 *Target,
+ IN UINT64 Lun
+ )
+/*++
+
+Routine Description:
+
+ Resets a SCSI device that is connected to a SCSI channel.
+
+Arguments:
+
+ This - Protocol instance pointer.
+ Target - The Target ID of the SCSI device to reset.
+ Lun - The LUN of the SCSI device to reset.
+
+Returns:
+
+ EFI_UNSUPPORTED - It's not supported.
+
+--*/
+{
+ return EFI_UNSUPPORTED;
+}
+
+EFI_STATUS
+EFIAPI
+IScsiExtScsiPassThruGetNextTarget (
+ IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
+ IN OUT UINT8 **Target
+ )
+/*++
+
+Routine Description:
+
+ Retrieve the list of legal Target IDs for SCSI devices on a SCSI channel.
+
+Arguments:
+ This - Protocol instance pointer.
+ Target - On input, a pointer to the Target ID of a SCSI
+ device present on the SCSI channel. On output,
+ a pointer to the Target ID of the next SCSI device
+ present on a SCSI channel. An input value of
+ 0xFFFFFFFF retrieves the Target ID of the first
+ SCSI device present on a SCSI channel.
+ Lun - On input, a pointer to the LUN of a SCSI device
+ present on the SCSI channel. On output, a pointer
+ to the LUN of the next SCSI device present on
+ a SCSI channel.
+
+Returns:
+
+ EFI_SUCCESS - The Target ID and Lun of the next SCSI device
+ on the SCSI channel was returned in Target and Lun.
+ EFI_NOT_FOUND - There are no more SCSI devices on this SCSI channel.
+ EFI_INVALID_PARAMETER - Target is not 0xFFFFFFFF,and Target and Lun were not
+ returned on a previous call to GetNextDevice().
+
+--*/
+{
+ UINT8 TargetId[TARGET_MAX_BYTES];
+
+ NetSetMem (TargetId, TARGET_MAX_BYTES, 0xFF);
+
+ if (NetCompareMem (*Target, TargetId, TARGET_MAX_BYTES) == 0) {
+ (*Target)[0] = 0;
+ return EFI_SUCCESS;
+ } else if ((*Target)[0] == 0) {
+ return EFI_NOT_FOUND;
+ } else {
+ return EFI_INVALID_PARAMETER;
+ }
+}
+
+EFI_EXT_SCSI_PASS_THRU_PROTOCOL gIScsiExtScsiPassThruProtocolTemplate = {
+ NULL,
+ IScsiExtScsiPassThruFunction,
+ IScsiExtScsiPassThruGetNextTargetLun,
+ IScsiExtScsiPassThruBuildDevicePath,
+ IScsiExtScsiPassThruGetTargetLun,
+ IScsiExtScsiPassThruResetChannel,
+ IScsiExtScsiPassThruResetTargetLun,
+ IScsiExtScsiPassThruGetNextTarget
+};
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