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| author | Jason Wang <jasowang@redhat.com> | 2015-10-23 00:57:05 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-10-23 02:34:39 -0700 |
| commit | f23d538bc24a83c16127c2eb82c9cf1adc2b5149 (patch) | |
| tree | f1611d6aabc191770c2d4d37c47a94dc55ee723a /drivers/net/macvtap.c | |
| parent | fc4099f17240767554ff3a73977acb78ef615404 (diff) | |
| download | linux-f23d538bc24a83c16127c2eb82c9cf1adc2b5149.tar.gz linux-f23d538bc24a83c16127c2eb82c9cf1adc2b5149.tar.bz2 linux-f23d538bc24a83c16127c2eb82c9cf1adc2b5149.zip | |
macvtap: unbreak receiving of gro skb with frag list
We don't have fraglist support in TAP_FEATURES. This will lead
software segmentation of gro skb with frag list. Fixes by having
frag list support in TAP_FEATURES.
With this patch single session of netperf receiving were restored from
about 5Gb/s to about 12Gb/s on mlx4.
Fixes a567dd6252 ("macvtap: simplify usage of tap_features")
Cc: Vlad Yasevich <vyasevic@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/macvtap.c')
| -rw-r--r-- | drivers/net/macvtap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c index 248478c6f6e4..197c93937c2d 100644 --- a/drivers/net/macvtap.c +++ b/drivers/net/macvtap.c @@ -137,7 +137,7 @@ static const struct proto_ops macvtap_socket_ops; #define TUN_OFFLOADS (NETIF_F_HW_CSUM | NETIF_F_TSO_ECN | NETIF_F_TSO | \ NETIF_F_TSO6 | NETIF_F_UFO) #define RX_OFFLOADS (NETIF_F_GRO | NETIF_F_LRO) -#define TAP_FEATURES (NETIF_F_GSO | NETIF_F_SG) +#define TAP_FEATURES (NETIF_F_GSO | NETIF_F_SG | NETIF_F_FRAGLIST) static struct macvlan_dev *macvtap_get_vlan_rcu(const struct net_device *dev) { |