From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by ml01.01.org (Postfix) with ESMTP id 91C951A1E18 for ; Mon, 8 Aug 2016 20:00:38 -0700 (PDT) Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP; 08 Aug 2016 20:00:24 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.28,493,1464678000"; d="scan'208";a="862081009" Received: from fmsmsx103.amr.corp.intel.com ([10.18.124.201]) by orsmga003.jf.intel.com with ESMTP; 08 Aug 2016 20:00:23 -0700 Received: from shsmsx102.ccr.corp.intel.com (10.239.4.154) by FMSMSX103.amr.corp.intel.com (10.18.124.201) with Microsoft SMTP Server (TLS) id 14.3.248.2; Mon, 8 Aug 2016 20:00:23 -0700 Received: from shsmsx101.ccr.corp.intel.com ([169.254.1.8]) by shsmsx102.ccr.corp.intel.com ([169.254.2.147]) with mapi id 14.03.0248.002; Tue, 9 Aug 2016 11:00:21 +0800 From: "Tian, Feng" To: Shaveta Leekha , Linaro UEFI Mailman List , "edk2-devel@lists.01.org" CC: "Tian, Feng" Thread-Topic: SATA AHCI issue Thread-Index: AdHdlQoTkMMxDwLeSvqGPu7iPmB3BgAAz1fgAAJ5bNAE7gJn8AAC2RPgAAHeECAAHhfkUA== Date: Tue, 9 Aug 2016 03:00:20 +0000 Message-ID: <7F1BAD85ADEA444D97065A60D2E97EE5388217A4@SHSMSX101.ccr.corp.intel.com> References: <7F1BAD85ADEA444D97065A60D2E97EE538817A7E@SHSMSX101.ccr.corp.intel.com> In-Reply-To: Accept-Language: zh-CN, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.239.127.40] MIME-Version: 1.0 Subject: Re: SATA AHCI issue X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 Aug 2016 03:00:38 -0000 Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi, Shaveta No, we will create multiple PRDs if the transfer length is larger than 4M. = each PRD could represent a 4M transfer request and the maximum number of PR= D for each command is 65535. How do you access the HDD? At block level or file level? It happens at all = HDDs or only one specific brand model? Thanks Feng -----Original Message----- From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Shav= eta Leekha Sent: Monday, August 8, 2016 8:07 PM To: Linaro UEFI Mailman List ; edk2-devel@lis= ts.01.org Subject: Re: [edk2] SATA AHCI issue Hi, As per the spec and the code in "AhciMode.c" // According to AHCI 1.3 spec, a PRDT entry can point to a maximum 4MB da= ta block. Does it mean, only one PRD entry is getting transferred successfully? But as the data I am writing onto SATA HDD is 30MB big, what about the rest= of PRDs? What could be went here? Thanks and Regards, Shaveta -----Original Message----- From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Shav= eta Leekha Sent: Monday, August 08, 2016 5:24 PM To: Linaro UEFI Mailman List ; edk2-devel@lis= ts.01.org Subject: [edk2] SATA AHCI issue Hi, I am facing one Timeout issue while writing big file over my SATA HDD. It in the code of "AhciDmaTransfer " from file AhciMode.c // // Wait for command compelte // FisBaseAddr =3D (UINTN)AhciRegisters->AhciRFis + Port * sizeof (EFI_AHCI_= RECEIVED_FIS); Offset =3D FisBaseAddr + EFI_AHCI_D2H_FIS_OFFSET; Status =3D AhciWaitMemSet ( Offset, EFI_AHCI_FIS_TYPE_MASK, EFI_AHCI_FIS_REGISTER_D2H, This MemSet check fails, what = could be the issue? Timeout ); TimeOut occur while checking FIS_REGISTER_D2H. Any idea about this time out issue? Can it be "Due to un-aligned PRD? Are there multiple PRDs created or single= PRD?" As I am able to write maximum 4MB file on SATA HDD, file above 4MB size fai= led by giving TIMEOUT_ERROR. Thanks and Regards, Shaveta _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel