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Message-ID: <20150226042158.GF1332@gospo.home.greyhouse.net> Date: Wed, 25 Feb 2015 23:21:58 -0500 From: Andy Gospodarek <gospo@...ulusnetworks.com> To: Scott Feldman <sfeldma@...il.com> Cc: Andrew Lunn <andrew@...n.ch>, Rafa?? Mi??ecki <zajec5@...il.com>, Florian Fainelli <f.fainelli@...il.com>, "David S. Miller" <davem@...emloft.net>, Network Development <netdev@...r.kernel.org>, Jonas Gorski <jogo@...nwrt.org>, Hauke Mehrtens <hauke@...ke-m.de>, Felix Fietkau <nbd@...nwrt.org>, Jiri Pirko <jiri@...nulli.us> Subject: Re: [PATCH] net: phy: b53: switchdev driver for Broadcom BCM53xx switches On Wed, Feb 25, 2015 at 04:53:24PM -0800, Scott Feldman wrote: > On Wed, Feb 25, 2015 at 7:46 AM, Andy Gospodarek > <gospo@...ulusnetworks.com> wrote: > > On Wed, Feb 25, 2015 at 03:03:56PM +0100, Andrew Lunn wrote: > > [...] > >> > >> What we don't want is X chip families and Y different ways to > >> configure the features. Ideal we want X chip families, and one way to > >> configure them all. > > > > This statement is really my primary concern. There is lots of interest > > around hardware offload at this point and it seems like there is a risk > > that a lack of consistency can create problems. > > > > I think these patches are great as they allow for the programming of the > > offload hardware (and it has been pointed out that this drastically > > increases performance), but one concern I have with this patch (related > > to this) is that I'm not sure there is a major need to create netdevs > > automatically if there is not the ability to rx/tx actual frames on > > these interfaces. > > Even when not used for rx/tx to CPU, it seems the netdevs are still > useful as an anchor to build higher-level constructs such as bridge or > bond, and to hang stuff like netdev stats or ethtool-ish things. > I agree that they are useful, but now we are really dealing with a netdev that is slightly lower functionality than we expect from a netdev right now. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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