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);