[PATCH net-next v3 08/12] netdevsim: pass packets thru GRO on Rx

[Jakub Kicinski <kuba@kernel.org>]

To replace veth in software GRO testing with netdevsim we need
GRO support in netdevsim. Luckily we already have NAPI support
so this change is trivial (compared to veth).

Reviewed-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
v2:
 - fix typo "compared"
v1: https://lore.kernel.org/20251117205810.1617533-9-kuba@kernel.org
---
 drivers/net/netdevsim/netdev.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/net/netdevsim/netdev.c b/drivers/net/netdevsim/netdev.c
index fa1d97885caa..2b713db16cd0 100644
--- a/drivers/net/netdevsim/netdev.c
+++ b/drivers/net/netdevsim/netdev.c
@@ -433,13 +433,8 @@ static int nsim_rcv(struct nsim_rq *rq, int budget)
 		}
 
 		/* skb might be discard at netif_receive_skb, save the len */
-		skblen = skb->len;
-		skb_mark_napi_id(skb, &rq->napi);
-		ret = netif_receive_skb(skb);
-		if (ret == NET_RX_SUCCESS)
-			dev_dstats_rx_add(dev, skblen);
-		else
-			dev_dstats_rx_dropped(dev);
+		dev_dstats_rx_add(dev, skb->len);
+		napi_gro_receive(&rq->napi, skb);
 	}
 
 	nsim_start_peer_tx_queue(dev, rq);
-- 
2.51.1