Re: max_sectors_kb problem

[adam radford]

On Wed, Mar 19, 2008 at 4:55 PM, Matteo Tescione <matteo@xxxxxxxx> 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
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