On Mon, Feb 10, 2020 at 08:18:05AM -0500, Dennis Dalessandro wrote:
> This patch series is an accelerated ipoib using the rdma netdev mechanism
> already present in ipoib. A new device capability bit,
> IB_DEVICE_RDMA_NETDEV_OPA, triggers ipoib to create a datagram QP using the
> IB_QP_CREATE_NETDEV_USE.
>
> The highlights include:
> - Sharing send and receive resources with VNIC
> - Allows for switching between connected mode and datagram mode
There is still value in connected mode?
> - Increases the maximum datagram MTU for opa devices to 10k
>
> The same spreading capability exploited by VNIC is used here to vary
> the receive context that receives the packet.
>
> The patches are fully bisectable and stepwise implement the capability.
This is alot of code to send without a performance
justification.. What is it? Is it worth while?
> Gary Leshner (6):
> IB/hfi1: Add functions to transmit datagram ipoib packets
> IB/hfi1: Add the transmit side of a datagram ipoib RDMA netdev
> IB/hfi1: Remove module parameter for KDETH qpns
> IB/{rdmavt,hfi1}: Implement creation of accelerated UD QPs
> IB/{hfi1,ipoib,rdma}: Broadcast ping sent packets which exceeded mtu size
> IB/ipoib: Add capability to switch between datagram and connected mode
>
> Grzegorz Andrejczuk (7):
> IB/hfi1: RSM rules for AIP
> IB/hfi1: Rename num_vnic_contexts as num_netdev_contexts
> IB/hfi1: Add functions to receive accelerated ipoib packets
> IB/hfi1: Add interrupt handler functions for accelerated ipoib
> IB/hfi1: Add rx functions for dummy netdev
This dummy netdev thing seemed very strange
Jason
