Commit 61ccbb68 authored Mar 13, 2014 by Veaceslav Falico Committed by David S. Miller Mar 14, 2014

ether: add loopback type ETH_P_LOOPBACK

Per IEEE 802.3*, the correct packet type for loopback 0x9000. There's
already one ETH_P_LOOP 0x0060, which has been there for ages, however it's
plainly wrong as anything that small is considered a length field.

We can't remove it because legacy, so add a new type which corresponds to
the correct id.

http://www.iana.org/assignments/ieee-802-numbers/ieee-802-numbers.xhtml



CC: "David S. Miller" <davem@davemloft.net>
CC: Stefan Richter <stefanr@s5r6.in-berlin.de>
CC: Simon Wunderlich <sw@simonwunderlich.de>
CC: Neil Jerram <Neil.Jerram@metaswitch.com>
CC: Simon Horman <horms@verge.net.au>
CC: Arvid Brodin <Arvid.Brodin@xdin.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 21396689

include/uapi/linux/if_ether.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -90,6 +90,7 @@
		#define ETH_P_TDLS 0x890D /* TDLS */
		#define ETH_P_FIP 0x8914 /* FCoE Initialization Protocol */
		#define ETH_P_80221 0x8917 /* IEEE 802.21 Media Independent Handover Protocol */
		#define ETH_P_LOOPBACK 0x9000 /* Ethernet loopback packet, per IEEE 802.3 */
		#define ETH_P_QINQ1 0x9100 /* deprecated QinQ VLAN [ NOT AN OFFICIALLY REGISTERED ID ] */
		#define ETH_P_QINQ2 0x9200 /* deprecated QinQ VLAN [ NOT AN OFFICIALLY REGISTERED ID ] */
		#define ETH_P_QINQ3 0x9300 /* deprecated QinQ VLAN [ NOT AN OFFICIALLY REGISTERED ID ] */