Hi all: This series tries to implement XDP transmission (ndo_xdp_xmit) for tuntap. Pointer ring was used for queuing both XDP buffers and sk_buff, this is done by encoding the type into lowest bit of the pointer and storin XDP metadata in the headroom of XDP buff.
Tests gets 3.05 Mpps when doing xdp_redirect_map from ixgbe to VM (testpmd + virtio-net in guest). Please review. Thanks Jason Wang (2): tun/tap: use ptr_ring instead of skb_array tuntap: XDP transmission drivers/net/tap.c | 41 ++++----- drivers/net/tun.c | 233 ++++++++++++++++++++++++++++++++++++++----------- drivers/vhost/net.c | 52 ++++++----- include/linux/if_tap.h | 6 +- include/linux/if_tun.h | 21 ++++- 5 files changed, 258 insertions(+), 95 deletions(-) -- 2.7.4
