[ewg] Re: [PATCH] IB/qib: set serdes parameters based on QSFP data and attenuation

Vladimir Sokolovsky vlad at dev.mellanox.co.il
Wed Dec 16 22:19:10 PST 2009


Ralph Campbell wrote:
> Vlad, these two patches are needed for the interop cable testing that is scheduled
> to happen soon.
> 
> Please pull:
> 
> git://git.openfabrics.org/~ralphc/linux-2.6/.git ofed_1_5
> 
> commit 47542fd9bd8a6893a465a553209674d83f3f661e
> Author: Ralph Campbell (QLogic) <ralphc at hosting.openfabrics.org>
> Date:   Wed Dec 16 17:19:55 2009 -0800
> 
>     IB/qib: fix RHEL 4 U8 backport for /dev/ipath
>     
>     The /dev/ipath* files were not being created by udev because
>     a "dev" file in /sys/class/ipath/... was not created. Newer versions
>     of udev don't seem to have this requirement. Also, vmalloc_to_page()
>     doesn't seem to check for zero and panics the system so fix that too.
>     
>     Signed-off-by: Ralph Campbell <ralph.campbell at qlogic.com>
> 
> commit 52bda772f225ec11a011f05c61ca97d85e6024db
> Author: Ralph Campbell (QLogic) <ralphc at hosting.openfabrics.org>
> Date:   Wed Dec 16 17:18:22 2009 -0800
> 
>     IB/qib: set serdes parameters based on QSFP data and attenuation
>     
>     The code to set the serdes parameters was rather ad-hoc and based
>     on early releases of vendor's cables before the full QSFP data was
>     programmed. This patch makes the process more robust and uses the
>     attenuation field if available.
> 
>     Signed-off-by: Ralph Campbell <ralph.campbell at qlogic.com>

Done,

Regards,
Vladimir



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