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authorNikolay Aleksandrov <nikolay@cumulusnetworks.com>2016-04-30 11:25:28 +0300
committerDavid S. Miller <davem@davemloft.net>2016-05-03 05:27:06 +0300
commit6dada9b10a0818ba72c249526a742c8c41274a73 (patch)
tree99452cd9dc512e297978597c60a3481a0d285421 /include
parent97a47facf3468fb6ebd697324fc2a7245755c417 (diff)
downloadlinux-6dada9b10a0818ba72c249526a742c8c41274a73.tar.xz
bridge: vlan: learn to count
Add support for per-VLAN Tx/Rx statistics. Every global vlan context gets allocated a per-cpu stats which is then set in each per-port vlan context for quick access. The br_allowed_ingress() common function is used to account for Rx packets and the br_handle_vlan() common function is used to account for Tx packets. Stats accounting is performed only if the bridge-wide vlan_stats_enabled option is set either via sysfs or netlink. A struct hole between vlan_enabled and vlan_proto is used for the new option so it is in the same cache line. Currently it is binary (on/off) but it is intentionally restricted to exactly 0 and 1 since other values will be used in the future for different purposes (e.g. per-port stats). Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/uapi/linux/if_link.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 2bfdb9c58342..95f77113388f 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -272,6 +272,7 @@ enum {
IFLA_BR_NF_CALL_ARPTABLES,
IFLA_BR_VLAN_DEFAULT_PVID,
IFLA_BR_PAD,
+ IFLA_BR_VLAN_STATS_ENABLED,
__IFLA_BR_MAX,
};