From mboxrd@z Thu Jan 1 00:00:00 1970 From: hpa@zytor.com (H. Peter Anvin) Subject: Re: Adding Reed-Solomon Personality to MD, need help/advice Date: Sat, 31 Jan 2004 07:20:05 +0000 (UTC) Sender: linux-raid-owner@vger.kernel.org Message-ID: References: <6.0.1.1.2.20040130235924.03f39710@mail.athenet.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: To: linux-raid@vger.kernel.org List-Id: linux-raid.ids =46ollowup to: <6.0.1.1.2.20040130235924.03f39710@mail.athenet.net> By author: Nathan Lewis In newsgroup: linux.dev.raid > > As part of my Master's thesis, I am working on adding a Reed-Solomon=20 > personality to the existing linux RAID structure and I would like som= e=20 > assistance. I'll try to keep this as brief as possible, but I apolog= ize if=20 > it gets long-winded. >=20 I'm curious what... what is the intended mode of operation of your R-S personality? > > So far, I've managed to add and register a personality with md, which= =20 > involved a few minor changes to md.c and related header files, a few=20 > changes to mdadm to allow me to access things from userland. I've=20 > discovered the 9 functions I need to implement (make_request, run, st= op,=20 > etc), and managed to "successfully" create an md device using only st= ub=20 > functions. So far so good. Just for reference, I'm using kernel 2.4= =2E22. >=20 I would advice you to try a 2.6 kernel instead. You might find it useful to compare raid5.c to raid6main.c in those kernels. -hpa --=20 PGP public key available - finger hpa@zytor.com Key fingerprint: 2047/2A960705 BA 03 D3 2C 14 A8 A8 BD 1E DF FE 69 EE = 35 BD 74 "The earth is but one country, and mankind its citizens." -- Bah=E1'u= 'll=E1h Just Say No to Morden * The Shadows were defeated -- Babylon 5 is renew= ed!! - 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