Re: [PATCH] mlx4_en: show device's port used

On Tue, 25 May 2010 09:55:47 -0700
Roland Dreier [off-list ref] 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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