From: Jarod Wilson <ja...@redhat.com> Date: Fri, 19 Jun 2020 10:31:51 -0400
> This is an initial functional implementation for doing pass-through of > hardware encryption from bonding device to capable slaves, in active-backup > bond setups. This was developed and tested using ixgbe-driven Intel x520 > interfaces with libreswan and a transport mode connection, primarily using > netperf, with assorted connection failures forced during transmission. The > failover works quite well in my testing, and overall performance is right > on par with offload when running on a bare interface, no bond involved. > > Caveats: this is ONLY enabled for active-backup, because I'm not sure > how one would manage multiple offload handles for different devices all > running at the same time in the same xfrm, and it relies on some minor > changes to both the xfrm code and slave device driver code to get things > to behave, and I don't have immediate access to any other hardware that > could function similarly, but the NIC driver changes are minimal and > straight-forward enough that I've included what I think ought to be > enough for mlx5 devices too. > > v2: reordered patches, switched (back) to using CONFIG_XFRM_OFFLOAD > to wrap the code additions and wrapped overlooked additions. > v3: rebase w/net-next open, add proper cc list to cover letter Series applied, thanks.
