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 10:09:28 -0700
From:	Roopa Prabhu <roprabhu@...co.com>
To:	"Rose, Gregory V" <gregory.v.rose@...el.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




On 10/31/11 9:38 AM, "Rose, Gregory V" <gregory.v.rose@...el.com> wrote:

>> -----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.
> 
Sounds good. 

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

Yes, I have an iproute2 sample patch for setting and displaying the filters
which I have been using to test this interface. I can send the patch to you
after some cleanup if you think it will be useful for you to try out this
interface.

Thanks Greg.

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