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DIR:OUT; SFP:1101; SCL:1; SRVR:DB5PR04MB0999; H:DB5PR04MB0998.eurprd04.prod.outlook.com; FPR:; SPF:None; PTR:InfoNoRecords; MX:1; A:1; LANG:en; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: KNB0wgYjexkl+9S72vZzFXQbgJUk5rlqKN5ejF6DjSNef7Q1de3uJHpVPQUikMAIAlq7Fb6IqHUe++90fcvjSg== spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 0a571a9b-612b-4a40-0bfd-08d5567dc7bb X-MS-Exchange-CrossTenant-originalarrivaltime: 08 Jan 2018 09:54:16.3368 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB5PR04MB0999 Subject: Re: [RFC] SATA : Implemented NXP errata A008402 X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 08 Jan 2018 09:49:15 -0000 Content-Language: en-US Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable > -----Original Message----- > From: Zeng, Star [mailto:star.zeng@intel.com] > Sent: Monday, January 08, 2018 3:18 PM > To: Meenakshi Aggarwal ; > ard.biesheuvel@linaro.org; leif.lindholm@linaro.org; edk2- > devel@lists.01.org; Dong, Eric > Cc: Ni, Ruiyu ; Zeng, Star > Subject: RE: [edk2] [RFC] SATA : Implemented NXP errata A008402 >=20 > So this PCD needs to be defined as 0x3FFFFF or may be 0x400000, then it > needs to be configured to 0 for your case, right? > Could the PCD be configured to other values? No, in my case i need to set it to 0 only. No other value is needed. >=20 > According to the statement you provided, is it possible to handle the cas= e in > the device firmware? >=20 > " Due to a logic error, 3F_FFFFh is misinterpreted by the device as zero > length." >=20 No, it can't be handle in device firmware for existing SATA controller. There are chances that in future releases of SATA controller it will get fi= xed in RTL, but this change will still be needed for LS2088 board.=20 >=20 > Thanks, > Star > -----Original Message----- > From: Meenakshi Aggarwal [mailto:meenakshi.aggarwal@nxp.com] > Sent: Monday, January 8, 2018 2:26 PM > To: Zeng, Star ; ard.biesheuvel@linaro.org; > leif.lindholm@linaro.org; edk2-devel@lists.01.org; Dong, Eric > > Cc: Ni, Ruiyu > Subject: RE: [edk2] [RFC] SATA : Implemented NXP errata A008402 >=20 > Hi Star, >=20 > Apologies and some correction in my last reply. >=20 > As per the errata, PRDT Maximum value needs to be set to 0 only when > creating a PRD entry for a maximum data transfer size. >=20 > So there is no need to replace all occurrences of > EFI_AHCI_MAX_DATA_PER_PRDT in file. > Just need to change it where we are setting the Data length. >=20 > I define it to 0x3FFFFF, as this is the actual value we are setting and t= his PCD > need to be used only once. >=20 > I know, its NXP specific patch only, and i try to made changes which will= not > impact any other package. >=20 >=20 > Thanks, > Meenakshi >=20 > > -----Original Message----- > > From: Meenakshi Aggarwal > > Sent: Monday, January 08, 2018 11:25 AM > > To: 'Zeng, Star' ; ard.biesheuvel@linaro.org; > > leif.lindholm@linaro.org; edk2-devel@lists.01.org; Dong, Eric > > > > Cc: Ni, Ruiyu > > Subject: RE: [edk2] [RFC] SATA : Implemented NXP errata A008402 > > > > Hi, > > > > I didn't prepare the full patch but will send in next few minutes, > > > > i made the very basic changes required to test Errata implementation. > > > > I will redefine it to 0x400000. > > PcdPrdtMaxDataLength was defined to 0x3FFFFF just for testing purpose. > > > > Thanks, > > Meenakshi > > > > > -----Original Message----- > > > From: Zeng, Star [mailto:star.zeng@intel.com] > > > Sent: Monday, January 08, 2018 11:19 AM > > > To: Meenakshi Aggarwal ; > > > ard.biesheuvel@linaro.org; leif.lindholm@linaro.org; edk2- > > > devel@lists.01.org; Dong, Eric > > > Cc: Ni, Ruiyu ; Zeng, Star > > > Subject: RE: [edk2] [RFC] SATA : Implemented NXP errata A008402 > > > > > > Do you have a full patch already? > > > Why the PcdPrdtMaxDataLength is defined to 0x3FFFFF, but not > 0x400000? > > > > > > > > > Thanks, > > > Star > > > -----Original Message----- > > > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf > > > Of Meenakshi Aggarwal > > > Sent: Monday, January 8, 2018 7:17 PM > > > To: ard.biesheuvel@linaro.org; leif.lindholm@linaro.org; edk2- > > > devel@lists.01.org; Zeng, Star ; Dong, Eric > > > > > > Subject: [edk2] [RFC] SATA : Implemented NXP errata A008402 > > > > > > Description: > > > Commands with 4 MB PRD length entries fail if PRD[DBC] is set to the > > > value according to AHCI standard spec. > > > Due to a logic error, 3F_FFFFh is misinterpreted by the device as > > > zero length. > > > > > > Workaround: > > > Set PRD length to 0 when creating a PRD entry for a maximum data > > > transfer size of 4 MB to fix the erratum. > > > > > > Contributed-under: TianoCore Contribution Agreement 1.1 > > > Signed-off-by: Meenakshi Aggarwal > > > --- > > > MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.c | 2 +- > > > MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AtaAtapiPassThru.inf | 1 + > > > MdeModulePkg/MdeModulePkg.dec | 3 +++ > > > 3 files changed, 5 insertions(+), 1 deletion(-) > > > > > > diff --git a/MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.c > > > b/MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.c > > > index e6de5d6..fb6dc0b 100644 > > > --- a/MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.c > > > +++ b/MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.c > > > @@ -591,7 +591,7 @@ AhciBuildCommand ( > > > if (RemainedData < EFI_AHCI_MAX_DATA_PER_PRDT) { > > > AhciRegisters->AhciCommandTable- > > >PrdtTable[PrdtIndex].AhciPrdtDbc =3D (UINT32)RemainedData - 1; > > > } else { > > > - AhciRegisters->AhciCommandTable- > > >PrdtTable[PrdtIndex].AhciPrdtDbc > > > =3D EFI_AHCI_MAX_DATA_PER_PRDT - 1; > > > + AhciRegisters->AhciCommandTable- > > >PrdtTable[PrdtIndex].AhciPrdtDbc > > > =3D PcdGet32 (PcdPrdtMaxDataLength); > > > } > > > > > > Data64.Uint64 =3D (UINT64)MemAddr; diff --git > > a/MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AtaAtapiPassThru.inf > > > b/MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AtaAtapiPassThru.inf > > > index 82d5f7a..8921dd5 100644 > > > --- a/MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AtaAtapiPassThru.inf > > > +++ b/MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AtaAtapiPassThru.inf > > > @@ -70,6 +70,7 @@ > > > > > > [Pcd] > > > gEfiMdeModulePkgTokenSpaceGuid.PcdAtaSmartEnable ## > > > SOMETIMES_CONSUMES > > > + gEfiMdeModulePkgTokenSpaceGuid.PcdPrdtMaxDataLength > > > > > > # [Event] > > > # EVENT_TYPE_PERIODIC_TIMER ## SOMETIMES_CONSUMES diff --git > > > a/MdeModulePkg/MdeModulePkg.dec > b/MdeModulePkg/MdeModulePkg.dec > > > index 8efad57..b2f9f2b 100644 > > > --- a/MdeModulePkg/MdeModulePkg.dec > > > +++ b/MdeModulePkg/MdeModulePkg.dec > > > @@ -1434,6 +1434,9 @@ > > > # @Prompt Console Output Row of Text Setup > > > > > > > > > gEfiMdeModulePkgTokenSpaceGuid.PcdSetupConOutRow|25|UINT32|0x40 > > > 00000e > > > > > > + ## This PCD specifies the Maximum data length for a PRD Entry > > > + > > > > > > gEfiMdeModulePkgTokenSpaceGuid.PcdPrdtMaxDataLength|0x3FFFFF|UIN > > > T32|0x4000000f > > > + > > > [PcdsFixedAtBuild, PcdsPatchableInModule, PcdsDynamic, > > PcdsDynamicEx] > > > ## UART clock frequency is for the baud rate configuration. > > > # @Prompt Serial Port Clock Rate. > > > -- > > > 1.9.1 > > > > > > _______________________________________________ > > > edk2-devel mailing list > > > edk2-devel@lists.01.org > > > > > > https://emea01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Flis > > t > > > s.01.org%2Fmailman%2Flistinfo%2Fedk2- > > > > > > devel&data=3D02%7C01%7Cmeenakshi.aggarwal%40nxp.com%7C9b1e2bde5b > > > > > > 4b47746d0e08d5565b8394%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C > > > > > > 0%7C636509873433437533&sdata=3Dwg3Sg5SiU2MrbZSkZMlboldcXnMBKKg3jG > > > yA45YZo1Q%3D&reserved=3D0