linux-kernel - Re: [PATCH v10 net-next 2/6] net: add low latency socket poll

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Message-ID: <1370874576.3252.3.camel@edumazet-glaptop>
Date:	Mon, 10 Jun 2013 07:29:36 -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>,
	Ben Hutchings <bhutchings@...arflare.com>,
	Andi Kleen <andi@...stfloor.org>, HPA <hpa@...or.com>,
	Eilon Greenstien <eilong@...adcom.com>,
	Or Gerlitz <or.gerlitz@...il.com>,
	Amir Vadai <amirv@...lanox.com>,
	Eliezer Tamir <eliezer@...ir.org.il>
Subject: Re: [PATCH v10 net-next 2/6] net: add low latency socket poll

On Mon, 2013-06-10 at 11:39 +0300, Eliezer Tamir wrote:
> Adds an ndo_ll_poll method and the code that supports it.
> This method can be used by low latency applications to busy-poll
> Ethernet device queues directly from the socket code.
> sysctl_net_ll_poll controls how many microseconds to poll.
> Default is zero (disabled).
> Individual protocol support will be added by subsequent patches.
> 
> Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>
> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@...el.com>
> Signed-off-by: Eliezer Tamir <eliezer.tamir@...ux.intel.com>
> ---
> 
>  Documentation/sysctl/net.txt |    7 ++
>  include/linux/netdevice.h    |    3 +
>  include/linux/skbuff.h       |    8 ++
>  include/net/ll_poll.h        |  148 ++++++++++++++++++++++++++++++++++++++++++
>  include/net/sock.h           |    4 +
>  include/uapi/linux/snmp.h    |    1 
>  net/Kconfig                  |   12 +++
>  net/core/skbuff.c            |    4 +
>  net/core/sock.c              |    6 ++
>  net/core/sysctl_net_core.c   |   10 +++
>  net/ipv4/proc.c              |    1 
>  net/socket.c                 |    6 ++
>  12 files changed, 208 insertions(+), 2 deletions(-)
>  create mode 100644 include/net/ll_poll.h

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


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