Re: [PATCH iwl-next,v2 1/2] selftests/bpf: xdp_hw_metadata reduce sleep interval

On 03/02, Song Yoong Siang wrote:

In current ping-pong design, xdp_hw_metadata will wait until the packet transmition completely done, then only start to receive the next packet.

The current sleep interval is 10ms, which is unnecessary large. Typically, a NIC does not need such a long time to transmit a packet. Furthermore, during this 10ms sleep time, the app is unable to receive incoming packets.

Therefore, this commit reduce sleep interval to 10us, so that xdp_hw_metadata able to support periodic packets with shorter interval. 10us * 500 = 5ms should be enough for packet transmission and status retrival.

Signed-off-by: Song Yoong Siang yoong.siang.song@intel.com

Acked-by: Stanislav Fomichev sdf@google.com