On Wed, 20 Nov 2019 11:59:38 +0800 (GMT+08:00) "Chengke Wang" <[email protected]> wrote:
> Dear all, > > > > > I found DPDK in order to implement a high-speed dataplane on 802.11ac. > We have tested that in the scenario where two machines use Wi-Fi Direct to > communicate, the goodput of TCP can reach above 800Mbps. > > > > > > > However, I learned that DPDK does not support wireless NICs now. Does > DPDK have special requirements of today’s commodity wireless NIC hardware? If > not, is it feasible to bring in support of DPDK for wireless NICs with > modification *only* to the NIC driver? We want to work on this if the change > to the driver is all we need. > There are no 802.11 wireless devices supported by DPDK and DPDK provides raw packet access only, no TCP. DPDK is generally not useful for data rates less than 1G bit/sec. You either have slow CPU's or other TCP queuing issues (bufferbloat). Checkout some of the queueing work in Linux and bufferbloat list.
