I understand the RAID-6 or GF(2) math. There is a test code crypto/async_tx/raid6test.c which make calls to async_gen_syncdrome() in turn calls raid6_int4_gen_syndrome(). I could not find which polynomial this code is using. -Marri -----Original Message----- From: Michael Evans [mailto:mjevans1983@xxxxxxxxx] Sent: Monday, April 19, 2010 6:55 PM To: Tirumala Reddy Marri Cc: linux-raid@xxxxxxxxxxxxxxx Subject: Re: RAID-6 polynomial On Mon, Apr 19, 2010 at 4:44 PM, Tirumala Reddy Marri <tmarri@xxxxxxxx> wrote: > What is the default polynomial to calculate RAID-6 syndrome in > async_pq.c? Is it 0x11d ? > Thanks in Advance, > Marri > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > If you google "raid6 math" you'll get a result like this as the first result: http://kernel.org/pub/linux/kernel/people/hpa/raid6.pdf The Mathematics of Raid 6 -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
