From: William Tu <u9012...@gmail.com> Date: Mon, 20 Jun 2016 07:26:17 -0700
> The commit f2a4d086ed4c ("openvswitch: Add packet truncation support.") > introduces packet truncation before sending to userspace upcall receiver. > This patch passes up the skb->len before truncation so that the upcall > receiver knows the original packet size. Potentially this will be used > by sFlow, where OVS translates sFlow config header=N to a sample action, > truncating packet to N byte in kernel datapath. Thus, only N bytes instead > of full-packet size is copied from kernel to userspace, saving the > kernel-to-userspace bandwidth. > > Signed-off-by: William Tu <u9012...@gmail.com> Applied.