The patch is good to me. Please update the copyright info before checkin. Reviewed-by: Hao Wu <hao.a...@intel.com>
Best Regards, Hao Wu > -----Original Message----- > From: Tian, Feng > Sent: Tuesday, October 18, 2016 1:19 PM > To: Wu, Hao A > Cc: edk2-devel@lists.01.org > Subject: [patch] MdeModulePkg/Ufs: ensure the DBC field of UTP PRDT is > dword-aligned > > According to UFS Host Controller Spec(JESD223), the bits 1:0 of this > DataByteCount field shall be 11b to indicate Dword granularity. > > But the size of UFS Request Sense Data Response defined in UFS Spec > (JESD220C) is 18 which is not Dword aligned, we would have to round > down to the multiple of 4 to fill the DBC field to avoid bring issue > on some UFS HCs. > > Cc: Hao Wu <hao.a...@intel.com> > Contributed-under: TianoCore Contribution Agreement 1.0 > Signed-off-by: Feng Tian <feng.t...@intel.com> > --- > MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c > b/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c > index 26986cb..a854264 100644 > --- a/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c > +++ b/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c > @@ -399,6 +399,11 @@ UfsInitUtpPrdt ( > UINT32 RemainingLen; > UINT8 *Remaining; > UINTN PrdtNumber; > + > + if ((BufferSize & (BIT0 | BIT1)) != 0) { > + BufferSize &= ~(BIT0 | BIT1); > + DEBUG ((EFI_D_WARN, "UfsInitUtpPrdt: The BufferSize [%d] is not dword- > aligned!\n", BufferSize)); > + } > > if (BufferSize == 0) { > return EFI_SUCCESS; > -- > 2.7.1.windows.2 _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel