Star, Maybe we should evaluate block size of the target USB device and limit the total transfer size to 64KB.
This would continue to use 128 for 512B blocks and 32 for 2K blocks. Mike > -----Original Message----- > From: Zeng, Star > Sent: Monday, March 12, 2018 5:44 PM > To: Kinney, Michael D <[email protected]>; Ming > Huang <[email protected]>; Ni, Ruiyu > <[email protected]>; [email protected]; linaro- > [email protected]; [email protected]; > [email protected]; Dong, Eric > <[email protected]> > Cc: [email protected]; [email protected]; > [email protected]; [email protected]; > Gao, Liming <[email protected]>; [email protected]; > [email protected]; [email protected]; > [email protected]; Zeng, Star > <[email protected]> > Subject: RE: [edk2] [RFC v1 1/1] MdeModulePkg/Usb: Use > Pcd for UsbBootIoBlocks > > Mike, > > There was some discussion at > https://lists.01.org/pipermail/edk2-devel/2017- > January/006707.html. > Seeming, there is no detailed information about why it > was changed to 128 according to the commit log. > > > Thanks, > Star > > -----Original Message----- > From: Kinney, Michael D > Sent: Monday, March 12, 2018 11:47 PM > To: Ming Huang <[email protected]>; Ni, Ruiyu > <[email protected]>; [email protected]; linaro- > [email protected]; [email protected]; > [email protected]; Zeng, Star > <[email protected]>; Dong, Eric <[email protected]>; > Kinney, Michael D <[email protected]> > Cc: [email protected]; [email protected]; > [email protected]; [email protected]; > Gao, Liming <[email protected]>; [email protected]; > [email protected]; [email protected]; > [email protected] > Subject: RE: [edk2] [RFC v1 1/1] MdeModulePkg/Usb: Use > Pcd for UsbBootIoBlocks > > Does anyone know wow was the original #define of 128 > selected? > > If we are seeing compatibility issues with 128 and we > have greater compatibility with 64, what would be the > impact of just changing the #define to 64? > > Thanks, > > Mike > > > -----Original Message----- > > From: Ming Huang [mailto:[email protected]] > > Sent: Sunday, March 11, 2018 11:01 PM > > To: Ni, Ruiyu <[email protected]>; > > [email protected]; linaro- > [email protected]; > > [email protected]; [email protected]; > Zeng, Star > > <[email protected]>; Dong, Eric > <[email protected]> > > Cc: [email protected]; [email protected]; > > [email protected]; [email protected]; > Kinney, Michael D > > <[email protected]>; Gao, Liming > <[email protected]>; > > [email protected]; [email protected]; > [email protected]; > > [email protected] > > Subject: Re: [edk2] [RFC v1 1/1] MdeModulePkg/Usb: Use > Pcd for > > UsbBootIoBlocks > > > > Any comments about this patch? > > > > > > On 2018/3/2 14:36, Ming Huang wrote: > > > > > > On 2018/2/27 18:01, Ni, Ruiyu wrote: > > >> On 2/27/2018 5:25 PM, Ming Huang wrote: > > >>> > > >>> On 2018/2/27 13:25, Ni, Ruiyu wrote: > > >>>> I don't prefer to add PCD, unless we cannot find: > > >>>> 1. spec content to describe the max/min blocks > > >>> There is no spec about the max/min blocks in my > > mind. I had checked this in > > >>> several pdf document like > > >>> Universal Serial Bus Mass Storage Class > > Specification Overview, > > >>> Universal Serial Bus Mass Storage Specification > For > > Bootability, > > >>> Universal Serial Bus Mass Storage Class Bulk-Only > > Transport. > > >>>> 2. error handling when the blocks number is > bigger > > than HW expects. > > >>> Where should error handling add to? Error handing > > can't add to HW (end-point device), > > >>> because HW is not in our control scope. > > >> I mean maybe spec describes an error status could > be > > returned from HW when using 128. So that we can use > 64, 32, and > > smaller value until HW is happy. > > >> > > >> I am curious how the other USB storage drivers > handle > > this. > > >> PCD is a static way. Dynamic way is more preferred. > > >> > > > When using 128, after waiting > > 5x5(USB_BOOT_COMMAND_RETRY=5, > > USB_BOOT_GENERAL_CMD_TIMEOUT=5) seconds, > > > the UsbBootReadBlocks ->UsbBootExecCmdWithRetry > retrun > > TimeOut. I don't know why HW return Timeout. > > > Booting time is to long if using Dynamic way to fix > > the issue. > > > When using 64, It works and booting from HW succeed. > > > May be using PCD is a simple and effective mean. > > > > > > Thanks > > > Ming > > >>>> Thanks/Ray > > >>>> > > >>>>> -----Original Message----- > > >>>>> From: edk2-devel [mailto:edk2-devel- > > [email protected]] On Behalf Of > > >>>>> Ming Huang > > >>>>> Sent: Saturday, February 24, 2018 5:30 PM > > >>>>> To: [email protected]; linaro- > > [email protected]; edk2- > > >>>>> [email protected]; [email protected]; > > Zeng, Star > > >>>>> <[email protected]>; Dong, Eric > > <[email protected]> > > >>>>> Cc: [email protected]; > > [email protected]; Ming Huang > > >>>>> <[email protected]>; Gao, Liming > > <[email protected]>; > > >>>>> [email protected]; [email protected]; > > >>>>> [email protected]; Kinney, Michael D > > >>>>> <[email protected]>; [email protected]; > > >>>>> [email protected]; > [email protected] > > >>>>> Subject: [edk2] [RFC v1 1/1] MdeModulePkg/Usb: > Use > > Pcd for > > >>>>> UsbBootIoBlocks > > >>>>> > > >>>>> Booting from USB may fail while the macro > > USB_BOOT_IO_BLOCKS set to 128 > > >>>>> because 128 blocks is exceeded the maximun > blocks > > of some USB > > >>>>> devices,like some virtual CD-ROM from BMC. So, > > give a chance to set the > > >>>>> value of USB_BOOT_IO_BLOCKS by adding a Pcd. > > >>>>> > > >>>>> Contributed-under: TianoCore Contribution > > Agreement 1.1 > > >>>>> Signed-off-by: Ming Huang > <[email protected]> > > >>>>> --- > > > >>>>> MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBo > > ot.h | 7 > > >>>>> +++++-- > > > >>>>> MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassSt > > orageDxe.inf | 4 > > >>>>> ++++ > > >>>>> MdeModulePkg/MdeModulePkg.dec > > | 4 ++++ > > >>>>> MdeModulePkg/MdeModulePkg.uni > > | 4 ++++ > > >>>>> 4 files changed, 17 insertions(+), 2 > deletions(- > > ) > > >>>>> > > >>>>> diff --git > > a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.h > > >>>>> > > b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.h > > >>>>> index 5ee50ac52a21..ca9240adbd5f 100644 > > >>>>> --- > > a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.h > > >>>>> +++ > > b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.h > > >>>>> @@ -16,6 +16,8 @@ WITHOUT WARRANTIES OR > > REPRESENTATIONS OF ANY > > >>>>> KIND, EITHER EXPRESS OR IMPLIED. > > >>>>> #ifndef _EFI_USB_MASS_BOOT_H_ > > >>>>> #define _EFI_USB_MASS_BOOT_H_ > > >>>>> > > >>>>> +#include <Library/PcdLib.h> > > >>>>> + > > >>>>> // > > >>>>> // The opcodes of various USB boot commands: > > >>>>> // INQUIRY/REQUEST_SENSE are "No Timeout > > Commands" as specified @@ > > >>>>> -66,9 +68,10 @@ 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 > depanded > > on Pcd. > > >>>>> +// The default of PcdUsbBootIoBlocks is 128. > 512B > > * 128 = 64KB > > >>>>> // > > >>>>> -#define USB_BOOT_IO_BLOCKS 128 > > >>>>> +#define > > USB_BOOT_IO_BLOCKS (FixedPcdGet32 > > >>>>> (PcdUsbBootIoBlocks)) > > >>>>> > > >>>>> // > > >>>>> // Retry mass command times, set by experience > > diff --git > > >>>>> > > > a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageD > > xe.inf > > >>>>> > > > b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageD > > xe.inf > > >>>>> index 26d15c7679bf..40426512f884 100644 > > >>>>> --- > > >>>>> > > > a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageD > > xe.inf > > >>>>> +++ > > >>>>> > > > b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassStorageD > > xe.inf > > >>>>> @@ -60,6 +60,7 @@ [Sources] > > >>>>> UsbMassDiskInfo.c > > >>>>> > > >>>>> [Packages] > > >>>>> + MdeModulePkg/MdeModulePkg.dec > > >>>>> MdePkg/MdePkg.dec > > >>>>> > > >>>>> [LibraryClasses] > > >>>>> @@ -83,5 +84,8 @@ [Protocols] > > >>>>> # EVENT_TYPE_RELATIVE_TIMER ## CONSUMES > > >>>>> # > > >>>>> > > >>>>> +[FixedPcd] > > >>>>> > > + gEfiMdeModulePkgTokenSpaceGuid.PcdUsbBootIoBlocks > > >>>>> + > > >>>>> [UserExtensions.TianoCore."ExtraFiles"] > > >>>>> UsbMassStorageDxeExtra.uni > > >>>>> diff --git a/MdeModulePkg/MdeModulePkg.dec > > >>>>> b/MdeModulePkg/MdeModulePkg.dec index > > 455979386e3f..fc40745315a0 > > >>>>> 100644 > > >>>>> --- a/MdeModulePkg/MdeModulePkg.dec > > >>>>> +++ b/MdeModulePkg/MdeModulePkg.dec > > >>>>> @@ -999,6 +999,10 @@ [PcdsFixedAtBuild] > > >>>>> # @Prompt Enable UEFI Stack Guard. > > >>>>> > > >>>>> > > > gEfiMdeModulePkgTokenSpaceGuid.PcdCpuStackGuard|FALSE|BO > > OLEAN|0 > > >>>>> x30001055 > > >>>>> > > >>>>> +## The Max blocks of usb transfer. The default > is > > 128. > > >>>>> +# @Prompt The Max blocks of usb transfer > > >>>>> > > > +gEfiMdeModulePkgTokenSpaceGuid.PcdUsbBootIoBlocks|128|U > > INT32|0x0 > > >>>>> 000010B > > >>>>> + > > >>>>> [PcdsFixedAtBuild, PcdsPatchableInModule] > > >>>>> ## Dynamic type PCD can be registered > callback > > function for Pcd setting > > >>>>> action. > > >>>>> # PcdMaxPeiPcdCallBackNumberPerPcdEntry > > indicates the maximum > > >>>>> number of callback function diff --git > > a/MdeModulePkg/MdeModulePkg.uni > > >>>>> b/MdeModulePkg/MdeModulePkg.uni index > > f3fa616438b0..c996d6b4ebe0 > > >>>>> 100644 > > >>>>> --- a/MdeModulePkg/MdeModulePkg.uni > > >>>>> +++ b/MdeModulePkg/MdeModulePkg.uni > > >>>>> @@ -1243,3 +1243,7 @@ > > >>>>> #string > > >>>>> > > > STR_gEfiMdeModulePkgTokenSpaceGuid_PcdEdkiiFpdtStringRec > > ordEnableO > > >>>>> nly_HELP #language en-US "Control which FPDT > > record format will be used > > >>>>> to store the performance entry.\n" > > >>>>> > > > "O n TRUE, the > > string FPDT > > >>>>> record will be used to store every performance > > entry.\n" > > >>>>> > > > "O n FALSE, the > > different > > >>>>> FPDT record will be used to store the different > > performance entries." > > >>>>> + > > >>>>> +#string > > >>>>> > > > STR_gEfiMdeModulePkgTokenSpaceGuid_PcdUsbBootIoBlocks_PR > > OMPT > > >>>>> #language en-US "The Max blocks of usb > transfer." > > >>>>> + > > >>>>> +#string > > >>>>> > > > STR_gEfiMdeModulePkgTokenSpaceGuid_PcdUsbBootIoBlocks_HE > > LP > > >>>>> #language en-US "The Max blocks of usb transfer. > > The default is 128." > > >>>>> -- > > >>>>> 1.9.1 > > >>>>> > > >>>>> _______________________________________________ > > >>>>> edk2-devel mailing list > > >>>>> [email protected] > > >>>>> https://lists.01.org/mailman/listinfo/edk2-devel > > >>> _______________________________________________ > > >>> edk2-devel mailing list > > >>> [email protected] > > >>> https://lists.01.org/mailman/listinfo/edk2-devel > > >>> > > >> _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
