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Date:   Tue, 24 Jan 2017 14:07:42 -0500 (EST)
From:   David Miller <>
Subject: Re: [net-next PATCH v7] net: dummy: Introduce dummy virtual

From: Phil Sutter <>
Date: Mon, 23 Jan 2017 12:17:33 +0100

> The idea for this was born when testing VF support in iproute2 which was
> impeded by hardware requirements. In fact, not every VF-capable hardware
> driver implements all netdev ops, so testing the interface is still hard
> to do even with a well-sorted hardware shelf.
> To overcome this and allow for testing the user-kernel interface, this
> patch allows to turn dummy into a PF with a configurable amount of VFs.
> Since my patch series 'bus-agnostic-num-vf' has been accepted,
> implementing the required interfaces is pretty straightforward: Iff
> 'num_vfs' module parameter was given a value >0, a dummy bus type is
> being registered which implements the 'num_vf()' callback. Additionally,
> a dummy parent device common to all dummy devices is registered which
> sits on the above dummy bus.
> Joint work with Sabrina Dubroca.
> Signed-off-by: Sabrina Dubroca <>
> Signed-off-by: Phil Sutter <>

Yeah this looks awesome, applied, thanks!

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