From: Ming Huang <ming.huang@linaro.org>
To: linaro-uefi@lists.linaro.org, edk2-devel@lists.01.org
Cc: star.zeng@intel.com, eric.dong@intel.com,
michael.d.kinney@intel.com, liming.gao@intel.com,
leif.lindholm@linaro.org, ard.biesheuvel@linaro.org,
guoheyi@huawei.com, wanghuiqiang@huawei.com,
huangming23@huawei.com, zhangjinsong2@huawei.com,
mengfanrong@huawei.com, huangdaode@hisilicon.com, waip23@126.com,
Ming Huang <ming.huang@linaro.org>
Subject: [MdeModulePkg/Usb v2 1/1] MdeModulePkg/Usb: Replace macro USB_BOOT_IO_BLOCKS
Date: Thu, 22 Mar 2018 15:44:26 +0800 [thread overview]
Message-ID: <1521704666-54009-2-git-send-email-ming.huang@linaro.org> (raw)
In-Reply-To: <1521704666-54009-1-git-send-email-ming.huang@linaro.org>
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>
---
MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c | 16 ++++++++++++----
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 b84bfd2d7290..3bf6e6a81f3c 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 13a926035ceb..f8a0708350c7 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
--
1.9.1
next prev parent reply other threads:[~2018-03-22 7:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-22 7:44 [MdeModulePkg/Usb v2 0/1] Calculating the count of blocks to transfer Ming Huang
2018-03-22 7:44 ` Ming Huang [this message]
2018-03-22 8:39 ` [MdeModulePkg/Usb v2 1/1] MdeModulePkg/Usb: Replace macro USB_BOOT_IO_BLOCKS Zeng, Star
2018-03-26 2:55 ` Ni, Ruiyu
2018-03-26 3:05 ` Zeng, Star
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