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MdeModulePkg/Usb: Replace macro USB_BOOT_IO_BLOCKS

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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>
This commit is contained in:
Ming Huang
2018-03-22 15:44:26 +08:00
committed by Star Zeng
parent dd190645eb
commit 824b6e3b5f
2 changed files with 14 additions and 6 deletions
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4
MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.h
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@@ -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