netdev - Re: Load Balancing for AF

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Message-ID: <1450190376.8474.28.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Tue, 15 Dec 2015 06:39:36 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Prashant Upadhyaya <praupadhyaya@...il.com>
Cc:	netdev <netdev@...r.kernel.org>
Subject: Re: Load Balancing for AF_INET Raw Sockets

On Tue, 2015-12-15 at 18:26 +0530, Prashant Upadhyaya wrote:
> Hi,
> 
> I open a raw socket for listening to all the UDP packets in a raw fashion --
> 
> socket(AF_INET, SOCK_RAW, IPPROTO_UDP);
> 
> Then I use recvfrom to read the packets over the socket.
> 
> The above works mighty fine.
> I want to find out if it is possible to 'load balance' the UDP flows
> by opening up multiple instances of this socket and then possibly
> setting some socket options so that I can scale up the reading via
> multiple threads doing recvfrom on these from multiple cores.
> (I know it is possible over packet sockets, but that is a different usecase)

No plan yet to support fanout on multiple raw sockets.


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