Re: [edk2] Why is USB_BOOT_IO_BLOCKS set to 128?

2017-01-18 Thread Heyi Guo
-devel@lists.01.org Cc: Zeng, Star <star.z...@intel.com> Subject: Re: [edk2] Why is USB_BOOT_IO_BLOCKS set to 128? Hi Feng, Digging in the code history, I found the original value of USB_BOOT_IO_BLOCKS was 64, but it was changed to be 128 by the commit 41e8ff2. So could you help to explain

Re: [edk2] Why is USB_BOOT_IO_BLOCKS set to 128?

2017-01-18 Thread Tian, Feng
org Cc: Zeng, Star <star.z...@intel.com> Subject: Re: [edk2] Why is USB_BOOT_IO_BLOCKS set to 128? Hi Feng, Digging in the code history, I found the original value of USB_BOOT_IO_BLOCKS was 64, but it was changed to be 128 by the commit 41e8ff2. So could you help to explain my questions

Re: [edk2] Why is USB_BOOT_IO_BLOCKS set to 128?

2017-01-17 Thread Heyi Guo
- From: Heyi Guo [mailto:heyi@linaro.org] Sent: Wednesday, October 19, 2016 9:57 AM To: edk2-devel@lists.01.org Cc: Tian, Feng <feng.t...@intel.com>; Zeng, Star <star.z...@intel.com> Subject: [edk2] Why is USB_BOOT_IO_BLOCKS set to 128? Dear experts, Could anyone help to ex

Re: [edk2] Why is USB_BOOT_IO_BLOCKS set to 128?

2016-10-19 Thread Heyi Guo
: Wednesday, October 19, 2016 9:57 AM To: edk2-devel@lists.01.org Cc: Tian, Feng <feng.t...@intel.com>; Zeng, Star <star.z...@intel.com> Subject: [edk2] Why is USB_BOOT_IO_BLOCKS set to 128? Dear experts, Could anyone help to explain why USB_BOOT_IO_BLOCKS in MdeModulePkg/Bus/Usb/UsbMa

Re: [edk2] Why is USB_BOOT_IO_BLOCKS set to 128?

2016-10-18 Thread Tian, Feng
g.t...@intel.com>; Zeng, Star <star.z...@intel.com> Subject: [edk2] Why is USB_BOOT_IO_BLOCKS set to 128? Dear experts, Could anyone help to explain why USB_BOOT_IO_BLOCKS in MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.h is set to 128? We found on some platforms this value may ca

[edk2] Why is USB_BOOT_IO_BLOCKS set to 128?

2016-10-18 Thread Heyi Guo
Dear experts, Could anyone help to explain why USB_BOOT_IO_BLOCKS in MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.h is set to 128? We found on some platforms this value may cause USB boot failure and *64* blocks will make them work. Though we have not got the final root cause, it will