From: Brice Goglin <Brice.Goglin@inria.fr>
To: greearb@candelatech.com
Cc: netdev@vger.kernel.org, e1000-devel@lists.sourceforge.net
Subject: Re: Should we report bus width/speed via ethtool?
Date: Wed, 05 Dec 2012 16:20:34 -0800 [thread overview]
Message-ID: <50BFE4D2.90707@inria.fr> (raw)
In-Reply-To: <20121205.190121.1400827550469329286.davem@davemloft.net>
Le 05/12/2012 16:01, David Miller a écrit :
> lspci might be a good place to figure this out :-) It's probably
> grovelling around in PCI config space to determine these things.
Right, it looks from PCI_EXP_LNKSTA in the config space (only works as
root). Here's how we do the same in hwloc (using the pciutils lib
underneath):
https://svn.open-mpi.org/trac/hwloc/browser/trunk/src/topology-libpci.c#L399
Brice
next prev parent reply other threads:[~2012-12-06 0:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-05 21:35 Should we report bus width/speed via ethtool? Ben Greear
2012-12-05 22:36 ` David Miller
2012-12-05 23:09 ` Ben Greear
2012-12-06 0:01 ` David Miller
2012-12-06 0:08 ` Rick Jones
2012-12-06 0:20 ` Brice Goglin [this message]
2012-12-06 0:44 ` Ben Greear
2012-12-06 2:06 ` Ben Hutchings
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