From: Vlad Yasevich <vyasevic@redhat.com>
To: Ben Greear <greearb@candelatech.com>
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH] macvlan: Set IFF_UNICAST_FLT flag to prevent unnecessary promisc mode.
Date: Thu, 07 Mar 2013 15:32:26 -0500 [thread overview]
Message-ID: <5138F95A.9010305@redhat.com> (raw)
In-Reply-To: <5138F82F.6010005@candelatech.com>
On 03/07/2013 03:27 PM, Ben Greear wrote:
> On 03/07/2013 12:21 PM, Vlad Yasevich wrote:
>> Macvlan already supports hw address filters. Set the IFF_UNICAST_FLT
>> so that it doesn't needlesly enter PROMISC mode when macvlans are
>> stacked.
>
> Out of curiosity, how can stacking mac-vlans be useful?
>
> (You are stacking more macvlans on a base mac-vlan?)
Yep, and macvlans allows, but it looks like it only tries to detect a 2
level stack. I am not sure what the reason is. Might be realated to
vlan-to-vlan communication.
-vlad
>
> Thanks,
> Ben
>
next prev parent reply other threads:[~2013-03-07 20:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-07 20:21 [PATCH] macvlan: Set IFF_UNICAST_FLT flag to prevent unnecessary promisc mode Vlad Yasevich
2013-03-07 20:27 ` Ben Greear
2013-03-07 20:32 ` Vlad Yasevich [this message]
2013-03-07 20:43 ` Vlad Yasevich
2013-03-07 21:37 ` David Miller
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