diff options
Diffstat (limited to 'OvmfPkg/LsiScsiDxe/LsiScsi.h')
| -rw-r--r-- | OvmfPkg/LsiScsiDxe/LsiScsi.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/OvmfPkg/LsiScsiDxe/LsiScsi.h b/OvmfPkg/LsiScsiDxe/LsiScsi.h index 8c2acff6e8..9f9e5c7fed 100644 --- a/OvmfPkg/LsiScsiDxe/LsiScsi.h +++ b/OvmfPkg/LsiScsiDxe/LsiScsi.h @@ -13,12 +13,26 @@ #define _LSI_SCSI_DXE_H_
typedef struct {
+ //
+ // Allocate 64KB for read/write buffer. It seems sufficient for the common
+ // boot scenarios.
+ //
+ // NOTE: The number of bytes for data transmission is bounded by DMA Byte
+ // Count (DBC), a 24-bit register, so the maximum is 0xFFFFFF (16MB-1).
+ //
+ UINT8 Data[SIZE_64KB];
+} LSI_SCSI_DMA_BUFFER;
+
+typedef struct {
UINT32 Signature;
UINT64 OrigPciAttrs;
EFI_EVENT ExitBoot;
EFI_PCI_IO_PROTOCOL *PciIo;
UINT8 MaxTarget;
UINT8 MaxLun;
+ LSI_SCSI_DMA_BUFFER *Dma;
+ EFI_PHYSICAL_ADDRESS DmaPhysical;
+ VOID *DmaMapping;
EFI_EXT_SCSI_PASS_THRU_MODE PassThruMode;
EFI_EXT_SCSI_PASS_THRU_PROTOCOL PassThru;
} LSI_SCSI_DEV;
|