linux-kernel - Re: [PATCH v6 net-next 3/5] tcp: add TCP support for low latency receive poll.

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Message-ID: <1369834714.5109.16.camel@edumazet-glaptop>
Date:	Wed, 29 May 2013 06:38:34 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Eliezer Tamir <eliezer.tamir@...ux.intel.com>
Cc:	David Miller <davem@...emloft.net>, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	Don Skidmore <donald.c.skidmore@...el.com>,
	e1000-devel@...ts.sourceforge.net,
	Willem de Bruijn <willemb@...gle.com>,
	Andi Kleen <andi@...stfloor.org>, HPA <hpa@...or.com>,
	Eilon Greenstien <eilong@...adcom.com>,
	Or Gerlitz <or.gerlitz@...il.com>,
	Alex Rosenbaum <alexr@...lanox.com>,
	Eliezer Tamir <eliezer@...ir.org.il>
Subject: Re: [PATCH v6 net-next 3/5] tcp: add TCP support for low latency
 receive poll.

On Wed, 2013-05-29 at 09:39 +0300, Eliezer Tamir wrote:
> Adds busy-poll support for TCP.
> Copy the napi_id from an incomming skb to the sk in tcp_v[46]_rcv().
> when there is no data in the socket we busy-poll in tcp_recvmsg().
> This is a good example of how to add busy-poll support to new protocols.
> 
> Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>
> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@...el.com>
> Tested-by: Willem de Bruijn <willemb@...gle.com>
> Signed-off-by: Eliezer Tamir <eliezer.tamir@...ux.intel.com>
> ---
> 
>  net/ipv4/tcp.c      |    5 +++++
>  net/ipv4/tcp_ipv4.c |    2 ++
>  net/ipv6/tcp_ipv6.c |    2 ++
>  3 files changed, 9 insertions(+), 0 deletions(-)

Acked-by: Eric Dumazet <edumazet@...gle.com>


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