From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eliezer Tamir Subject: Re: [PATCH net-next] net: Add low-latency/polling support for UDP multicast Date: Tue, 06 Aug 2013 10:13:07 +0300 Message-ID: <5200A203.2090306@linux.intel.com> References: <20130805212257.GB6904@sbohrermbp13-local.rgmadvisors.com> <1375741001-20553-1-git-send-email-sbohrer@rgmadvisors.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: davem@davemloft.net, netdev@vger.kernel.org, Amir Vadai , tomk@rgmadvisors.com To: Shawn Bohrer Return-path: Received: from mga02.intel.com ([134.134.136.20]:26979 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754453Ab3HFHNL (ORCPT ); Tue, 6 Aug 2013 03:13:11 -0400 In-Reply-To: <1375741001-20553-1-git-send-email-sbohrer@rgmadvisors.com> Sender: netdev-owner@vger.kernel.org List-ID: On 06/08/2013 01:16, Shawn Bohrer wrote: > Set the napi id for each socket in the multicast path to enable > low-latency/polling support. > > Signed-off-by: Shawn Bohrer > --- > net/ipv4/udp.c | 1 + > 1 files changed, 1 insertions(+), 0 deletions(-) > > diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c > index 766e6ba..0d0da17 100644 > --- a/net/ipv4/udp.c > +++ b/net/ipv4/udp.c > @@ -1596,6 +1596,7 @@ static int __udp4_lib_mcast_deliver(struct net *net, struct sk_buff *skb, > dif = skb->dev->ifindex; > sk = udp_v4_mcast_next(net, sk, uh->dest, daddr, uh->source, saddr, dif); > while (sk) { > + sk_mark_napi_id(sk, skb); > stack[count++] = sk; > sk = udp_v4_mcast_next(net, sk_nulls_next(sk), uh->dest, > daddr, uh->source, saddr, dif); > Looks OK. To be complete, you want to do the same for __udp6_lib_mcast_deliver(). -Eliezer