On Wed, 29 Jun 2022 14:53:34 +0200 Maciej Fijalkowski wrote:

quoted

quoted

+                       __sk_mark_napi_id_once(sk, xs->pool->heads[0].xdp.rxq->napi_id);  

Please hide this hideous pointer chasing in something neater:
xsk_pool_get_napi_id() or something.  

Would it make sense to introduce napi_id to xsk_buff_pool then?
xp_set_rxq_info() could be setting it. We are sure that napi_id is the
same for whole pool (each xdp_buff_xsk's rxq info).

Would it be possible to move the marking to when the queue is getting
bound instead of the recv/send paths?