From: Victor Julien <victor@inliniac.net>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David Miller <davem@davemloft.net>, netdev@vger.kernel.org
Subject: Re: [PATCH 2/2] packet: Add fanout support.
Date: Tue, 05 Jul 2011 08:56:38 +0200 [thread overview]
Message-ID: <4E12B5A6.2020802@inliniac.net> (raw)
In-Reply-To: <1309846875.2720.43.camel@edumazet-laptop>
On 07/05/2011 08:21 AM, Eric Dumazet wrote:
> Le lundi 04 juillet 2011 à 21:20 -0700, David Miller a écrit :
>> Fanouts allow packet capturing to be demuxed to a set of AF_PACKET
>> sockets. Two fanout policies are implemented:
>>
>> 1) Hashing based upon skb->rxhash
>
> ...
>
>> +
>> +static struct sock *fanout_demux_hash(struct packet_fanout *f, struct sk_buff *skb)
>> +{
>> + u32 idx, hash = skb->rxhash;
>> +
>> + idx = ((u64)hash * f->num_members) >> 32;
>> +
>> + return f->arr[idx];
>> +}
>> +
>
> rxhash is 0 unless skb_get_rxhash() was called, or some NIC set it in RX
> path.
>
Is this still also true for IP fragments?
--
---------------------------------------------
Victor Julien
http://www.inliniac.net/
PGP: http://www.inliniac.net/victorjulien.asc
---------------------------------------------
next prev parent reply other threads:[~2011-07-05 6:57 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-05 4:20 [PATCH 2/2] packet: Add fanout support David Miller
2011-07-05 4:33 ` Eric Dumazet
2011-07-05 4:36 ` David Miller
2011-07-05 6:21 ` Eric Dumazet
2011-07-05 6:56 ` Victor Julien [this message]
2011-07-05 7:00 ` Eric Dumazet
2011-07-05 7:06 ` Victor Julien
2011-07-05 7:50 ` David Miller
2011-07-05 7:52 ` Victor Julien
2011-07-05 8:02 ` David Miller
2011-07-05 8:47 ` Hagen Paul Pfeifer
2011-07-05 8:48 ` Victor Julien
2011-07-05 9:01 ` David Miller
2011-07-05 16:03 ` Loke, Chetan
2011-07-05 16:08 ` David Miller
2011-07-05 16:16 ` Eric Dumazet
2011-07-05 16:21 ` Victor Julien
2011-07-05 16:23 ` Eric Dumazet
2011-07-05 17:15 ` Victor Julien
2011-07-05 18:26 ` Eric Dumazet
2011-07-05 18:34 ` Victor Julien
2011-07-05 17:35 ` Loke, Chetan
2011-07-05 18:20 ` Eric Dumazet
2011-07-05 21:10 ` Loke, Chetan
2011-07-05 7:48 ` David Miller
2011-07-05 7:46 ` David Miller
2011-07-05 9:50 ` Eric Dumazet
2011-07-05 10:07 ` David Miller
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