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| author | Ming Huang <ming.huang@linaro.org> | 2018-03-22 15:44:26 +0800 |
|---|---|---|
| committer | Star Zeng <star.zeng@intel.com> | 2018-03-26 11:02:43 +0800 |
| commit | 824b6e3b5fa080df36626db3eb8465c25a12c053 (patch) | |
| tree | 1d0e28961de41d6d2b2be1d5ae4031cab884ee08 /MdeModulePkg | |
| parent | dd190645eb43424706eb1709d0032c69a1935d9f (diff) | |
| download | edk2-824b6e3b5fa080df36626db3eb8465c25a12c053.tar.gz edk2-824b6e3b5fa080df36626db3eb8465c25a12c053.tar.bz2 edk2-824b6e3b5fa080df36626db3eb8465c25a12c053.zip | |
MdeModulePkg/Usb: Replace macro USB_BOOT_IO_BLOCKS
Booting from USB may fail while the macro USB_BOOT_IO_BLOCKS
set to 128 because the block size of some USB devices are exceeded
512, like some virtual CD-ROM from BMC, the block size is 2048.
So,the count blocks to transfer should be calculated by block
size of the USB devices.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ming Huang <ming.huang@linaro.org>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Diffstat (limited to 'MdeModulePkg')
| -rw-r--r-- | MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c | 16 | ||||
| -rw-r--r-- | MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.h | 4 |
2 files changed, 14 insertions, 6 deletions
diff --git a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c index b84bfd2d72..3bf6e6a81f 100644 --- a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c +++ b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c @@ -814,11 +814,13 @@ UsbBootReadBlocks ( USB_BOOT_READ10_CMD ReadCmd;
EFI_STATUS Status;
UINT16 Count;
+ UINT16 CountMax;
UINT32 BlockSize;
UINT32 ByteSize;
UINT32 Timeout;
BlockSize = UsbMass->BlockIoMedia.BlockSize;
+ CountMax = (UINT16)(USB_BOOT_MAX_CARRY_SIZE / BlockSize);
Status = EFI_SUCCESS;
while (TotalBlock > 0) {
@@ -827,7 +829,7 @@ UsbBootReadBlocks ( // on the device. We must split the total block because the READ10
// command only has 16 bit transfer length (in the unit of block).
//
- Count = (UINT16)((TotalBlock < USB_BOOT_IO_BLOCKS) ? TotalBlock : USB_BOOT_IO_BLOCKS);
+ Count = (UINT16)((TotalBlock < CountMax) ? TotalBlock : CountMax);
ByteSize = (UINT32)Count * BlockSize;
//
@@ -890,11 +892,13 @@ UsbBootWriteBlocks ( USB_BOOT_WRITE10_CMD WriteCmd;
EFI_STATUS Status;
UINT16 Count;
+ UINT16 CountMax;
UINT32 BlockSize;
UINT32 ByteSize;
UINT32 Timeout;
BlockSize = UsbMass->BlockIoMedia.BlockSize;
+ CountMax = (UINT16)(USB_BOOT_MAX_CARRY_SIZE / BlockSize);
Status = EFI_SUCCESS;
while (TotalBlock > 0) {
@@ -903,7 +907,7 @@ UsbBootWriteBlocks ( // on the device. We must split the total block because the WRITE10
// command only has 16 bit transfer length (in the unit of block).
//
- Count = (UINT16)((TotalBlock < USB_BOOT_IO_BLOCKS) ? TotalBlock : USB_BOOT_IO_BLOCKS);
+ Count = (UINT16)((TotalBlock < CountMax) ? TotalBlock : CountMax);
ByteSize = (UINT32)Count * BlockSize;
//
@@ -966,18 +970,20 @@ UsbBootReadBlocks16 ( UINT8 ReadCmd[16];
EFI_STATUS Status;
UINT16 Count;
+ UINT16 CountMax;
UINT32 BlockSize;
UINT32 ByteSize;
UINT32 Timeout;
BlockSize = UsbMass->BlockIoMedia.BlockSize;
+ CountMax = (UINT16)(USB_BOOT_MAX_CARRY_SIZE / BlockSize);
Status = EFI_SUCCESS;
while (TotalBlock > 0) {
//
// Split the total blocks into smaller pieces.
//
- Count = (UINT16)((TotalBlock < USB_BOOT_IO_BLOCKS) ? TotalBlock : USB_BOOT_IO_BLOCKS);
+ Count = (UINT16)((TotalBlock < CountMax) ? TotalBlock : CountMax);
ByteSize = (UINT32)Count * BlockSize;
//
@@ -1040,18 +1046,20 @@ UsbBootWriteBlocks16 ( UINT8 WriteCmd[16];
EFI_STATUS Status;
UINT16 Count;
+ UINT16 CountMax;
UINT32 BlockSize;
UINT32 ByteSize;
UINT32 Timeout;
BlockSize = UsbMass->BlockIoMedia.BlockSize;
+ CountMax = (UINT16)(USB_BOOT_MAX_CARRY_SIZE / BlockSize);
Status = EFI_SUCCESS;
while (TotalBlock > 0) {
//
// Split the total blocks into smaller pieces.
//
- Count = (UINT16)((TotalBlock < USB_BOOT_IO_BLOCKS) ? TotalBlock : USB_BOOT_IO_BLOCKS);
+ Count = (UINT16)((TotalBlock < CountMax) ? TotalBlock : CountMax);
ByteSize = (UINT32)Count * BlockSize;
//
diff --git a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.h b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.h index 13a926035c..f8a0708350 100644 --- a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.h +++ b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.h @@ -65,9 +65,9 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. #define USB_PDT_SIMPLE_DIRECT 0x0E ///< Simplified direct access device
//
-// Other parameters, Max carried size is 512B * 128 = 64KB
+// Other parameters, Max carried size is 64KB.
//
-#define USB_BOOT_IO_BLOCKS 128
+#define USB_BOOT_MAX_CARRY_SIZE SIZE_64KB
//
// Retry mass command times, set by experience
|