netdev - RE: [net-next-2.6 PATCH 0/6 RFC v3] macvlan: MAC Address filtering support for passthru mode

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Date:	Mon, 31 Oct 2011 09:38:58 -0700
From:	"Rose, Gregory V" <gregory.v.rose@...el.com>
To:	Roopa Prabhu <roprabhu@...co.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:	"sri@...ibm.com" <sri@...ibm.com>,
	"dragos.tatulea@...il.com" <dragos.tatulea@...il.com>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	"arnd@...db.de" <arnd@...db.de>, "mst@...hat.com" <mst@...hat.com>,
	"davem@...emloft.net" <davem@...emloft.net>,
	"mchan@...adcom.com" <mchan@...adcom.com>,
	"dwang2@...co.com" <dwang2@...co.com>,
	"shemminger@...tta.com" <shemminger@...tta.com>,
	"eric.dumazet@...il.com" <eric.dumazet@...il.com>,
	"kaber@...sh.net" <kaber@...sh.net>,
	"benve@...co.com" <benve@...co.com>
Subject: RE: [net-next-2.6 PATCH 0/6 RFC v3] macvlan: MAC Address filtering
	support for passthru mode

> -----Original Message-----
> From: netdev-owner@...r.kernel.org [mailto:netdev-owner@...r.kernel.org]
> On Behalf Of Roopa Prabhu
> Sent: Friday, October 28, 2011 7:34 PM
> To: netdev@...r.kernel.org
> Cc: sri@...ibm.com; dragos.tatulea@...il.com; kvm@...r.kernel.org;
> arnd@...db.de; mst@...hat.com; davem@...emloft.net; Rose, Gregory V;
> mchan@...adcom.com; dwang2@...co.com; shemminger@...tta.com;
> eric.dumazet@...il.com; kaber@...sh.net; benve@...co.com
> Subject: [net-next-2.6 PATCH 0/6 RFC v3] macvlan: MAC Address filtering
> support for passthru mode
> 
> v2 -> v3
> - Moved set and get filter ops from rtnl_link_ops to netdev_ops
> - Support for SRIOV VFs.
> 	[Note: The get filters msg might get too big for SRIOV vfs.
>         But this patch follows existing sriov vf get code and
> 	accomodate filters for all VF's in a PF.
>         And for the SRIOV case I have only tested the fact that the VF
> 	arguments are getting delivered to rtnetlink correctly. The rest of
> 	the code follows existing sriov vf handling code so it should work
> 	just fine]
> - Fixed all op and netlink attribute names to start with IFLA_RX_FILTER
> - Changed macvlan filter ops to call corresponding lowerdev op if lowerdev
>   supports it for passthru mode. Else it falls back on macvlan handling
> the
>   filters locally as in v1 and v2
> 
> v1 -> v2
> - Instead of TUNSETTXFILTER introduced rtnetlink interface for the same
> 

[snip...]

> 
> This patch series implements the following
> 01/6 rtnetlink: Netlink interface for setting MAC and VLAN filters
> 02/6 netdev: Add netdev_ops to set and get MAC/VLAN rx filters
> 03/6 rtnetlink: Add support to set MAC/VLAN filters
> 04/6 rtnetlink: Add support to get MAC/VLAN filters
> 05/6 macvlan: Add support to set MAC/VLAN filter netdev ops
> 06/6 macvlan: Add support to get MAC/VLAN filter netdev ops
> 
> Please comment. Thanks.

After some preliminary review this looks pretty good to me in so far as adding the necessary hooks to do what I need to do.  I appreciate your effort on this.

I'm sort of a hands-on type of person so I need to apply this patch to a private git tree and then take it for a test drive (so to speak).  If I have further comments I'll get back to you.

Did you have any plans for modifying any user space tools such as 'ip' to use this interface?

- Greg

> 
> Signed-off-by: Roopa Prabhu <roprabhu@...co.com>
> Signed-off-by: Christian Benvenuti <benve@...co.com>
> Signed-off-by: David Wang <dwang2@...co.com>
> --
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