Commit f71c549b authored by Joe Damato's avatar Joe Damato Committed by Jakub Kicinski
Browse files

netdevsim: Mark NAPI ID on skb in nsim_rcv 



Previously, nsim_rcv was not marking the NAPI ID on the skb, leading to
applications seeing a napi ID of 0 when using SO_INCOMING_NAPI_ID.

To add to the userland confusion, netlink appears to correctly report
the NAPI IDs for netdevsim queues but the resulting file descriptor from
a call to accept() was reporting a NAPI ID of 0.

Signed-off-by: default avatarJoe Damato <jdamato@fastly.com>
Link: https://patch.msgid.link/20250424002746.16891-2-jdamato@fastly.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent f74d14a7

drivers/net/netdevsim/netdev.c

+2 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ 
#include <net/pkt_cls.h>

#include <net/rtnetlink.h>

#include <net/udp_tunnel.h>

#include <net/busy_poll.h>



#include "netdevsim.h"
@@ -357,6 +358,7 @@ static int nsim_rcv(struct nsim_rq *rq, int budget) 
			break;



		skb = skb_dequeue(&rq->skb_queue);

		skb_mark_napi_id(skb, &rq->napi);

		netif_receive_skb(skb);

	}