From: Stephen Hemminger <shemminger-ZtmgI6mnKB3QT0dZR+AlfA@public.gmane.org>
To: Roland Dreier <rdreier-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
Cc: Eli Cohen <eli-VPRAkNaXOzVS1MOuV/RT9w@public.gmane.org>,
davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Linux RDMA list
<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
yevgenyp-VPRAkNaXOzVS1MOuV/RT9w@public.gmane.org
Subject: Re: [PATCH] mlx4_en: show device's port used
Date: Tue, 25 May 2010 10:12:06 -0700 [thread overview]
Message-ID: <20100525101206.5451346c@nehalam> (raw)
In-Reply-To: <adaaarnzzsc.fsf-BjVyx320WGW9gfZ95n9DRSW4+XlvGpQz@public.gmane.org>
On Tue, 25 May 2010 09:55:47 -0700
Roland Dreier <rdreier-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org> wrote:
> > Add a sysfs file under /sys/class/net/<ethx> to show the port number within the
> > device that this network interface is using. This is needed as ConnectX devices
> > have two ports and it is useful to know which port the ethernet devices uses.
>
> How do other multi-port ethernet devices handle this? Seems that the
> cleanest way to handle this would be to add a place for drivers to set
> the port number, and export it to userspace in generic code (so everyone
> does it the same way).
There is a rarely used field in net_device called dev_id
that looks like it was intended for this.
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next prev parent reply other threads:[~2010-05-25 17:12 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-25 13:55 [PATCH] mlx4_en: show device's port used Eli Cohen
2010-05-25 16:55 ` Roland Dreier
[not found] ` <adaaarnzzsc.fsf-BjVyx320WGW9gfZ95n9DRSW4+XlvGpQz@public.gmane.org>
2010-05-25 17:12 ` Stephen Hemminger [this message]
2010-05-25 17:42 ` Eli Cohen
[not found] ` <20100525174214.GA14745-8YAHvHwT2UEvbXDkjdHOrw/a8Rv0c6iv@public.gmane.org>
2010-05-25 21:32 ` Roland Dreier
[not found] ` <adask5fy8et.fsf-BjVyx320WGW9gfZ95n9DRSW4+XlvGpQz@public.gmane.org>
2010-05-26 11:35 ` Tziporet Koren
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