lkml.org 
[lkml]   [2013]   [Aug]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH] bridge: separate querier and query timer into IGMP/IPv4 and MLD/IPv6 ones
From
From: Linus Lüssing <linus.luessing@web.de>
Date: Mon, 26 Aug 2013 12:01:06 +0200

> Currently we would still potentially suffer multicast packet loss if there
> is just either an IGMP or an MLD querier: For the former case, we would
> possibly drop IPv6 multicast packets, for the latter IPv4 ones. This is
> because we are currently assuming that if either an IGMP or MLD querier
> is present that the other one is present, too.
>
> This patch makes the behaviour and fix added in
> "bridge: disable snooping if there is no querier" (b00589af3b04)
> to also work if there is either just an IGMP or an MLD querier on the
> link: It refines the deactivation of the snooping to be protocol
> specific by using separate timers for the snooped IGMP and MLD queries
> as well as separate timers for our internal IGMP and MLD queriers.
>
> Signed-off-by: Linus Lüssing <linus.luessing@web.de>

I think the logic of the fix is fine, but theres a lot of duplication
here.

Why not make a:

struct bridge_mcast_timer {
struct timer_list timer;
u32 queries_sent;
u32 startup_queries_sent;

};

Then in the port structure you have:

struct bridge_mcast_timer ip4;
struct bridge_mcast_timer ip6;

And pass a reference to the right one into generic helper functions.

That sounds a lot better right?

Please make this improvement and resubmit, thanks.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2013-08-29 02:41    [W:0.240 / U:0.116 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site