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From: "adam radford" <aradford@gmail.com>
To: "Matteo Tescione" <matteo@rmnet.it>
Cc: linux-kernel@vger.kernel.org
Subject: Re: max_sectors_kb problem
Date: Thu, 20 Mar 2008 14:45:01 -0800 [thread overview]
Message-ID: <b1bc6a000803201545i2eaecc20r921b77e2e60e8911@mail.gmail.com> (raw)
In-Reply-To: <C4077491.650A%matteo@rmnet.it>
On Wed, Mar 19, 2008 at 4:55 PM, Matteo Tescione <matteo@rmnet.it> wrote:
> Hello Folks,
>
> I'm running 2.6.24.3 kernel with the 3ware 9650se 8port in raid10 with 256K
> of stripesize.
> The question is: why linux kernel (2.6.24 but it's the same in older
> kernels) see only 128K as it's max_sectors_kb ?
> It's limited by max_hw_segments_kb which i think should be 256 with a 256 k
> stripe.
> It seems hardcoded somewhere, altough in 3w-9xxx.c i can't find it.
> I'm running firmware FE9X 3.08.02.007 and driver version 2.26.02.010
> Can someone help me?
This is hardcoded in the 3w-9xxx driver to 128k. The controller firmware
is only guaranteed to work with that size. If you change it, you may
incur data corruption, hangs, or both. Hacker beware.
-Adam
prev parent reply other threads:[~2008-03-20 22:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-20 0:55 Matteo Tescione
2008-03-20 22:45 ` adam radford [this message]
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