Re: [PATCH] cxgb4: use dev_port to identify ports

From: Thadeu Lima de Souza Cascardo
Date: Thu Jun 26 2014 - 08:37:30 EST


On Wed, Jun 25, 2014 at 04:08:21PM -0700, Luis R. Rodriguez wrote:
> On Sat, Jun 21, 2014 at 5:48 AM, Thadeu Lima de Souza Cascardo
> <cascardo@xxxxxxxxxxxxxxxxxx> wrote:
> > That use was removed by commit
> > 8c367fcbe6549195d2eb11e62bea233f811aad41 ("cxgb4: Do not set
> > net_device::dev_id to VI index"), since dev_id should be used only when
> > devices share the same MAC address.
> >
> > Using dev_port for cxgb4 allows different ports on the same PCI function
> > to be identified.
>
> Can you describe what issues were introduced because of this then?
>
> Luis
>

udevd builtin net-id cannot rename the interfaces, since it relies on
the dev_id for interfaces on the same PCI function. I am going to send a
patch to use dev_port instead, and fallback to dev_id, and copy netdev.

Regards.
Cascardo.

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