From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andi Kleen <andi@firstfloor.org>
Subject: Re: [PATCH] TX_RING and packet mmap
Date: Tue, 12 May 2009 18:11:50 +0200
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References: <1242076914.12380.2.camel@bender>
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Cc: netdev@vger.kernel.org, Herbert Xu <herbert@gondor.apana.org.au>,
	"David S. Miller" <davem@davemloft.net>,
	Patrick McHardy <kaber@trash.net>, jamal <hadi@cyberus.ca>,
	Christoph Lameter <cl@linux.com>,
	Evgeniy Polyakov <zbr@ioremap.net>
To: Johann Baudy <johann.baudy@gnu-log.net>
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In-Reply-To: <1242076914.12380.2.camel@bender> (Johann Baudy's message of "Mon, 11 May 2009 23:21:54 +0200")
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Johann Baudy <johann.baudy@gnu-log.net> writes:

> From: Johann Baudy <johann.baudy@gnu-log.net>
>
> New packet socket feature that makes packet socket more efficient for transmission.
> - It reduces number of system call through a PACKET_TX_RING mechanism, based on PACKET_RX_RING (Circular buffer allocated in kernel space which is mmapped from user space).
> - It minimizes CPU copy using fragmented SKB (almost zero copy).

When you add new interfaces like this you should add them to the packet (7)
manpage too.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only.