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authorNeil Horman <nhorman@tuxdriver.com>2014-01-23 01:01:44 +0400
committerDavid S. Miller <davem@davemloft.net>2014-01-23 05:35:50 +0400
commit2d36097d26b5991d71a2cf4a20c1a158f0f1bfcd (patch)
tree86ad219b1481a17780efec984c314e1b0f6bc87e /include/uapi
parentb414ac9a3ea8a547e4a413160d36bffefb2ba5c7 (diff)
downloadlinux-2d36097d26b5991d71a2cf4a20c1a158f0f1bfcd.tar.xz
af_packet: Add Queue mapping mode to af_packet fanout operation
This patch adds a queue mapping mode to the fanout operation of af_packet sockets. This allows user space af_packet users to better filter on flows ingressing and egressing via a specific hardware queue, and avoids the potential packet reordering that can occur when FANOUT_CPU is being used and irq affinity varies. Tested successfully by myself. applies to net-next Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: "David S. Miller" <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/if_packet.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/if_packet.h b/include/uapi/linux/if_packet.h
index 1988a02842cc..bac27fa05f5b 100644
--- a/include/uapi/linux/if_packet.h
+++ b/include/uapi/linux/if_packet.h
@@ -60,6 +60,7 @@ struct sockaddr_ll {
#define PACKET_FANOUT_CPU 2
#define PACKET_FANOUT_ROLLOVER 3
#define PACKET_FANOUT_RND 4
+#define PACKET_FANOUT_QM 5
#define PACKET_FANOUT_FLAG_ROLLOVER 0x1000
#define PACKET_FANOUT_FLAG_DEFRAG 0x8000