2 messages, 2 authors, 2014-02-27 · open the first message on its own page
From: ratheesh kannoth <hidden>
Date: 2014-02-27 06:40:06
Hi , The link https://www.kernel.org/doc/Documentation/networking/packet_mmap.txt talks about achieving zero copy. But i find a deep packet copy ( of length snaplen= skb->len ) here http://lxr.free-electrons.com/source/net/packet/af_packet.c#L1841. Is there anything missing/wrong in my understanding ? Thanks, Ratheesh
From: Daniel Borkmann <hidden>
Date: 2014-02-27 09:58:34
On 02/27/2014 07:40 AM, ratheesh kannoth wrote: ...
https://www.kernel.org/doc/Documentation/networking/packet_mmap.txt talks about achieving zero copy. But i find a deep packet copy ( of length snaplen= skb->len ) here http://lxr.free-electrons.com/source/net/packet/af_packet.c#L1841. Is there anything missing/wrong in my understanding ?
The zero-copy is between user and kernel space.