diff options
| author | Flavio Leitner <fbl@sysclose.org> | 2020-02-03 18:45:50 -0300 |
|---|---|---|
| committer | Ben Pfaff <blp@ovn.org> | 2020-02-06 11:37:23 -0800 |
| commit | 73858f9dbe83daf8cc8d4b604acc23eb62cc3f52 (patch) | |
| tree | 320d642d7fb3bca1328555ec027620fb9dd3f71d /lib/dp-packet.h | |
| parent | 2297cbe6cc25b6b1862c499ce8f16f52f75d9e5f (diff) | |
| download | openvswitch-73858f9dbe83daf8cc8d4b604acc23eb62cc3f52.tar.gz | |
netdev-linux: Prepend the std packet in the TSO packet
Usually TSO packets are close to 50k, 60k bytes long, so to
to copy less bytes when receiving a packet from the kernel
change the approach. Instead of extending the MTU sized
packet received and append with remaining TSO data from
the TSO buffer, allocate a TSO packet with enough headroom
to prepend the std packet data.
Fixes: 29cf9c1b3b9c ("userspace: Add TCP Segmentation Offload support")
Suggested-by: Ben Pfaff <blp@ovn.org>
Signed-off-by: Flavio Leitner <fbl@sysclose.org>
Signed-off-by: Ben Pfaff <blp@ovn.org>
Diffstat (limited to 'lib/dp-packet.h')
| -rw-r--r-- | lib/dp-packet.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/dp-packet.h b/lib/dp-packet.h index 69ae5dfac..9a9d35183 100644 --- a/lib/dp-packet.h +++ b/lib/dp-packet.h @@ -152,6 +152,8 @@ struct dp_packet *dp_packet_clone_with_headroom(const struct dp_packet *, struct dp_packet *dp_packet_clone_data(const void *, size_t); struct dp_packet *dp_packet_clone_data_with_headroom(const void *, size_t, size_t headroom); +void dp_packet_resize(struct dp_packet *b, size_t new_headroom, + size_t new_tailroom); static inline void dp_packet_delete(struct dp_packet *); static inline void *dp_packet_at(const struct dp_packet *, size_t offset, |