From: "Nicolas de Pesloüan" <nicolas.2p.debian@gmail.com>
To: "Michał Mirosław" <mirqus@gmail.com>
Cc: Jiri Pirko <jpirko@redhat.com>,
netdev@vger.kernel.org, davem@davemloft.net,
shemminger@linux-foundation.org, kaber@trash.net,
fubar@us.ibm.com, eric.dumazet@gmail.com, andy@greyhouse.net
Subject: Re: [patch net-next-2.6 6/8] bonding: move processing of recv handlers into handle_frame()
Date: Sun, 06 Mar 2011 18:37:28 +0100 [thread overview]
Message-ID: <4D73C658.6080004@gmail.com> (raw)
In-Reply-To: <AANLkTi=Gt_ArqOVPJjnrAExO8Fihu8WzUhYSb_O6URQ_@mail.gmail.com>
Le 06/03/2011 17:32, Michał Mirosław a écrit :
[snip]
> Is there a particular reason why this ARP monitoring can't be done in
> userspace (e.g. on AF_PACKET with suitable filter)? Marking slaves
> up/down as their link goes in that direction is easy, but as more and
> more link-state detecting methods/algorithms get added this is
> becoming more of a mess.
Moving as much as possible of bonding into userspace is a long standing target.
I think we currently lack a good way to notify the bonding driver that a given slave is available or
not. Bringing the slave down on link failure is not appropriate, because it would prevent userspace
from receiving the ARP packets that would bring the slave up again upon link return.
The only thing we can do is writing into /sys/class/net/bond0/bonding/active_slave, to force the
active_slave. And this is strictly limited to active-backup mode.
I will let Jay / Andy comment on the general problem.
Nicolas.
next prev parent reply other threads:[~2011-03-06 17:37 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-05 10:29 [patch net-next-2.6 0/8] mostly bonding rx path changes Jiri Pirko
2011-03-05 10:29 ` [patch net-next-2.6 1/8] af_packet: use skb->skb_iif instead of orig_dev->ifindex Jiri Pirko
2011-03-05 14:03 ` Nicolas de Pesloüan
2011-03-05 10:29 ` [patch net-next-2.6 2/8] bonding: register slave pointer for rx_handler Jiri Pirko
2011-03-05 14:06 ` Nicolas de Pesloüan
2011-03-05 14:27 ` Jiri Pirko
2011-03-05 14:38 ` Nicolas de Pesloüan
2011-03-05 10:29 ` [patch net-next-2.6 3/8] net: get rid of multiple bond-related netdevice->priv_flags Jiri Pirko
2011-03-05 14:14 ` Nicolas de Pesloüan
2011-03-05 14:37 ` Ben Hutchings
2011-03-05 14:46 ` Nicolas de Pesloüan
2011-03-05 10:29 ` [patch net-next-2.6 4/8] bonding: wrap slave state work Jiri Pirko
2011-03-05 15:21 ` Nicolas de Pesloüan
2011-03-07 9:58 ` Jiri Pirko
2011-03-07 19:55 ` Nicolas de Pesloüan
2011-03-08 7:18 ` Jiri Pirko
2011-03-08 21:23 ` Nicolas de Pesloüan
2011-03-05 10:29 ` [patch net-next-2.6 5/8] bonding: get rid of IFF_SLAVE_INACTIVE netdev->priv_flag Jiri Pirko
2011-03-05 14:18 ` Nicolas de Pesloüan
2011-03-05 10:29 ` [patch net-next-2.6 6/8] bonding: move processing of recv handlers into handle_frame() Jiri Pirko
2011-03-05 14:33 ` Nicolas de Pesloüan
2011-03-05 14:43 ` Jiri Pirko
2011-03-05 14:50 ` Nicolas de Pesloüan
2011-03-06 12:24 ` Nicolas de Pesloüan
2011-03-06 13:34 ` Jiri Pirko
2011-03-06 14:25 ` Nicolas de Pesloüan
2011-03-06 16:32 ` Michał Mirosław
2011-03-06 17:37 ` Nicolas de Pesloüan [this message]
2011-03-07 12:51 ` [patch net-next-2.6] net: reinject arps into bonding slave instead of master Jiri Pirko
2011-03-07 14:32 ` Andy Gospodarek
2011-03-07 20:12 ` Nicolas de Pesloüan
2011-03-07 21:19 ` Jiri Pirko
2011-03-07 21:30 ` Nicolas de Pesloüan
2011-03-07 22:43 ` Andy Gospodarek
2011-03-07 23:09 ` Nicolas de Pesloüan
2011-03-08 2:43 ` Andy Gospodarek
2011-03-08 21:34 ` Nicolas de Pesloüan
2011-03-08 7:13 ` Jiri Pirko
2011-03-08 13:42 ` Andy Gospodarek
2011-03-08 21:44 ` Nicolas de Pesloüan
2011-03-09 7:45 ` Jiri Pirko
2011-03-09 14:49 ` Nicolas de Pesloüan
2011-03-09 15:09 ` Jiri Pirko
2011-03-09 15:28 ` Nicolas de Pesloüan
2011-03-09 17:11 ` Jiri Pirko
2011-03-09 22:18 ` Nicolas de Pesloüan
2011-03-10 6:48 ` Jiri Pirko
2011-03-10 20:44 ` Nicolas de Pesloüan
2011-03-10 20:52 ` Jiri Pirko
2011-03-10 21:05 ` Jiri Pirko
2011-03-09 20:51 ` Jiri Pirko
2011-03-09 13:33 ` Neil Horman
2011-03-05 10:29 ` [patch net-next-2.6 7/8] net: introduce rx_handler results and logic around that Jiri Pirko
2011-03-05 12:48 ` Ben Hutchings
2011-03-05 14:52 ` Nicolas de Pesloüan
2011-03-05 14:54 ` Jiri Pirko
2011-03-05 15:06 ` Nicolas de Pesloüan
2011-03-05 15:13 ` [patch net-next-2.6] net: comment rx_handler results Jiri Pirko
2011-03-05 15:27 ` Nicolas de Pesloüan
2011-03-05 15:37 ` Jiri Pirko
2011-03-05 15:50 ` Nicolas de Pesloüan
2011-03-06 20:00 ` [PATCH net-next-2.6] net: enhance the documentation for rx_handler Nicolas de Pesloüan
2011-03-07 9:54 ` Jiri Pirko
2011-03-07 16:36 ` Stephen Hemminger
2011-03-07 20:01 ` [PATCH net-next-2.6 V2] " Nicolas de Pesloüan
2011-03-05 15:31 ` [patch net-next-2.6 7/8 v2] net: introduce rx_handler results and logic around that Jiri Pirko
2011-03-05 10:29 ` [patch net-next-2.6 8/8] net: get rid of orig_dev parameter of packet handlers Jiri Pirko
2011-03-05 15:05 ` Nicolas de Pesloüan
2011-03-05 15:15 ` Jiri Pirko
2011-03-05 15:32 ` [patch net-next-2.6 8/8 v2] " Jiri Pirko
2011-03-05 16:56 ` Nicolas de Pesloüan
2011-03-05 22:07 ` Jiri Pirko
2011-03-05 22:18 ` Nicolas de Pesloüan
-- strict thread matches above, loose matches on Subject: below --
2011-03-05 8:29 [patch net-next-2.6 0/8] mostly bonding rx path changes Jiri Pirko
2011-03-05 8:29 ` [patch net-next-2.6 6/8] bonding: move processing of recv handlers into handle_frame() Jiri Pirko
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