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Date: Mon, 02 Feb 2015 14:41:52 -0700
From: David Ahern <dsahern@...il.com>
To: Scott Feldman <sfeldma@...il.com>
CC: Netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH] net: rocker: Change netdev names to include slot number
On 2/2/15 2:33 PM, Scott Feldman wrote:
> On Sun, Feb 1, 2015 at 10:03 PM, David Ahern <dsahern@...il.com> wrote:
>> Currently, rocker devices are given eth%d names. If you have multiple
>> rocker devices it is difficult to easily correlate eth%d names to a
>> rocker device and port. Change the device name to sw + PCI slot
>> number + p + id (sw%dp%d). This makes the device names easier to
>> correlate. ie., Rather than eth0, ..., eth N (N = number of ports in
>> device) the ports get netdev names like sw5p0, ..., sw5pN.
>
> I think udev is the preferred tool for interface naming, rather than
> hard-coding interface names in the driver.
>
hmmm... What I am seeing right now is a race as to which devices are
detected first -- rocker or virtio. On half of the boots the virtio are
detected first and named eth0 and eth1. The other half of the boots
virtio devices are detected last and become ethN+1 and ethN+2 (N=number
of rocker ports) -- which makes it a PITA to script commands. AFAIK udev
won't solve that problem.
David
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