netdev - Re: [PATCH net-next v2 2/2] openvswitch: Add eventmask support to CT action.

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Message-Id: <20170424.135343.1508947450864961163.davem@davemloft.net>
Date:   Mon, 24 Apr 2017 13:53:43 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     jarno@....org
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH net-next v2 2/2] openvswitch: Add eventmask support to
 CT action.

From: Jarno Rajahalme <jarno@....org>
Date: Fri, 21 Apr 2017 16:48:06 -0700

> Add a new optional conntrack action attribute OVS_CT_ATTR_EVENTMASK,
> which can be used in conjunction with the commit flag
> (OVS_CT_ATTR_COMMIT) to set the mask of bits specifying which
> conntrack events (IPCT_*) should be delivered via the Netfilter
> netlink multicast groups.  Default behavior depends on the system
> configuration, but typically a lot of events are delivered.  This can be
> very chatty for the NFNLGRP_CONNTRACK_UPDATE group, even if only some
> types of events are of interest.
> 
> Netfilter core init_conntrack() adds the event cache extension, so we
> only need to set the ctmask value.  However, if the system is
> configured without support for events, the setting will be skipped due
> to extension not being found.
> 
> Signed-off-by: Jarno Rajahalme <jarno@....org>
> Reviewed-by: Greg Rose <gvrose8192@...il.com>
> Acked-by: Joe Stringer <joe@....org>

Applied.