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From: "Charles (Chas) Williams" <3chas3@gmail.com>
To: Thomas Monjalon <thomas.monjalon@6wind.com>
Date: Thu, 05 Nov 2015 11:39:04 -0500
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Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v2] devargs: add blacklisting by linux
 interface name
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On Wed, 2015-11-04 at 23:40 +0100, Thomas Monjalon wrote:
> 2015-10-14 09:41, Charles  Williams:
> > On Tue, 2015-10-13 at 14:49 +0200, Olivier MATZ wrote:
> > > For PCI devices that have several interfaces (I think it's the case for
> > > some Mellanox boards), maybe we should not store the interface name?
> > 
> > I am not sure what you mean here.  If a device has multiple ethernet
> > interfaces, then it should a have seperate PCI device address space for
> > each interface (I dont know of any DPDK drivers that don't make this
> > assumption as well).
> 
> mlx4 and cxgbe?

OK, I see now.  I don't know of a way to tell if a device has multiple
ports just from the pci vendor/device id without maintaining some
sort of table.

Do these devices have multiple interfaces listed in their
/sys/devices/.../net diretory?  If so, matching one of the listed
interfaces can just blacklist the whole device similar to blacklisting
by the device id.