From c0f25c802b3300b28d1e67c58c702d29555838de Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Mon, 9 May 2016 20:03:36 +0200 Subject: batman-adv: Include frame priority in fragment header Unfragmented frames which traverse a node have their skb->priority set by looking at the IP ToS byte, or the 802.1p header. However for fragments this is not possible, only one of the fragments will contain the headers. Instead, place the priority into the fragment header and on receiving a fragment, use this information to set the skb->priority for when the fragment is forwarded. Signed-off-by: Andrew Lunn Signed-off-by: Marek Lindner Signed-off-by: Sven Eckelmann Signed-off-by: Simon Wunderlich --- net/batman-adv/packet.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'net/batman-adv/packet.h') diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h index 372128ddb474..71567794df17 100644 --- a/net/batman-adv/packet.h +++ b/net/batman-adv/packet.h @@ -420,6 +420,7 @@ struct batadv_unicast_4addr_packet { * @dest: final destination used when routing fragments * @orig: originator of the fragment used when merging the packet * @no: fragment number within this sequence + * @priority: priority of frame, from ToS IP precedence or 802.1p * @reserved: reserved byte for alignment * @seqno: sequence identification * @total_size: size of the merged packet @@ -430,9 +431,11 @@ struct batadv_frag_packet { u8 ttl; #if defined(__BIG_ENDIAN_BITFIELD) u8 no:4; - u8 reserved:4; + u8 priority:3; + u8 reserved:1; #elif defined(__LITTLE_ENDIAN_BITFIELD) - u8 reserved:4; + u8 reserved:1; + u8 priority:3; u8 no:4; #else #error "unknown bitfield endianness" -- cgit v1.2.1