summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorTom Herbert <therbert@google.com>2014-11-07 03:06:01 +0100
committerDavid S. Miller <davem@davemloft.net>2014-11-07 03:59:55 +0100
commit5c91ae08e4500ebc8efd584c8b87c4040d5393ea (patch)
tree9410a4b74a22553c71df13e81a52425da31a1a7e
parentMerge branch 'amd-xgbe-next' (diff)
downloadlinux-5c91ae08e4500ebc8efd584c8b87c4040d5393ea.tar.xz
linux-5c91ae08e4500ebc8efd584c8b87c4040d5393ea.zip
vxlan: Fix to enable UDP checksums on interface
Add definition to vxlan nla_policy for UDP checksum. This is necessary to enable UDP checksums on VXLAN. In some instances, enabling UDP checksums can improve performance on receive for devices that return legacy checksum-unnecessary for UDP/IP. Also, UDP checksum provides some protection against VNI corruption. Testing: Ran 200 instances of TCP_STREAM and TCP_RR on bnx2x. TCP_STREAM IPv4, without UDP checksums 14.41% TX CPU utilization 25.71% RX CPU utilization 9083.4 Mbps IPv4, with UDP checksums 13.99% TX CPU utilization 13.40% RX CPU utilization 9095.65 Mbps TCP_RR IPv4, without UDP checksums 94.08% TX CPU utilization 156/248/462 90/95/99% latencies 1.12743e+06 tps IPv4, with UDP checksums 94.43% TX CPU utilization 158/250/462 90/95/99% latencies 1.13345e+06 tps Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/vxlan.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index ca309820d39e..0ab411461d2e 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -2233,6 +2233,9 @@ static const struct nla_policy vxlan_policy[IFLA_VXLAN_MAX + 1] = {
[IFLA_VXLAN_L2MISS] = { .type = NLA_U8 },
[IFLA_VXLAN_L3MISS] = { .type = NLA_U8 },
[IFLA_VXLAN_PORT] = { .type = NLA_U16 },
+ [IFLA_VXLAN_UDP_CSUM] = { .type = NLA_U8 },
+ [IFLA_VXLAN_UDP_ZERO_CSUM6_TX] = { .type = NLA_U8 },
+ [IFLA_VXLAN_UDP_ZERO_CSUM6_RX] = { .type = NLA_U8 },
};
static int vxlan_validate(struct nlattr *tb[], struct nlattr *data[])