From mboxrd@z Thu Jan 1 00:00:00 1970 From: tirumalareddy marri Subject: Re: Debugging new HW XOR engine driver Date: Tue, 15 Jul 2008 13:19:55 -0700 (PDT) Message-ID: <311346.67486.qm@web81308.mail.mud.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Sender: linux-raid-owner@vger.kernel.org To: Dan Williams Cc: thomas62186218@aol.com, linux-raid@vger.kernel.org List-Id: linux-raid.ids Hi Dan, =A0 440SPe was my refence driver . I am working new SOC with some modif= ications to XOR engines. I have most of the stuff working like ADMA and= XOR(tested one block of data). When I use ADMA and SW XOR(with out=A0H= W XOR) RAID-5 works fine.=A0=A0 =A0When combined ADMA + XOR , having is= sues. =A0When I create a file system and try to mount it fails. Which c= ould be becasue of some state problem in XOR calculations. Is there any document about how=A0 full stripe write, partial stripe wr= ites and recovery=A0 works in MD driver ? Thanks, Marri =A0=20 =A0 ----- Original Message ---- =46rom: Dan Williams To: tirumalareddy marri Cc: thomas62186218@aol.com; linux-raid@vger.kernel.org Sent: Tuesday, July 15, 2008 11:34:48 AM Subject: Re: Debugging new HW XOR engine driver On Tue, Jul 15, 2008 at 9:59 AM, tirumalareddy marri wrote: > I am working AMCC powerPC based SoC. It has XOR engine built in the H= W. Is this related to the driver started here? [PATCH] [PPC32]=A0 ADMA support for PPC 440SPe processors. http://marc.info/?l=3Dlinux-raid&m=3D117400143317440&w=3D2 If so, that may be a better starting point. -- Dan -- To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at=A0 http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html