| From: |
| Jason Wang <jasowang-AT-redhat.com> |
| To: |
| davem-AT-davemloft.net, mst-AT-redhat.com, netdev-AT-vger.kernel.org, linux-kernel-AT-vger.kernel.org |
| Subject: |
| [PATCH net-next 0/3] XDP support for tap |
| Date: |
| Thu, 27 Jul 2017 17:25:30 +0800 |
| Message-ID: |
| <1501147533-12368-1-git-send-email-jasowang@redhat.com> |
| Cc: |
| Jason Wang <jasowang-AT-redhat.com> |
Hi all:
This series tries to implement XDP support for tap. Two path were
implemented:
- fast path: small & non-gso packet, For performance reason we do it
at page level and use build_skb() to create skb if necessary.
- slow path: big or gso packet, we don't want to lose the capability
compared to generic XDP, so we export some generic xdp helpers and
do it after skb was created.
xdp1 shows about 47% improvement.
Please review.
Jason Wang (3):
tap: use build_skb() for small packet
net: export some generic xdp helpers
tap: XDP support
drivers/net/tun.c | 247 ++++++++++++++++++++++++++++++++++++++++++----
include/linux/netdevice.h | 2 +
net/core/dev.c | 14 +--
3 files changed, 236 insertions(+), 27 deletions(-)
--
2.7.4
