[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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