[PATCH net-next] net: lan966x: allow offloading timestamp operations to the PHY

From: Horatiu Vultur
Date: Mon Mar 07 2022 - 05:11:35 EST


In case the MAC is using 'netif_rx()' to deliver the skb up the network
stack, it needs to check whether 'skb_defer_rx_timestmap()' is necessary
or not. In case is needed then don't call 'netif_rx()'

Signed-off-by: Horatiu Vultur <horatiu.vultur@xxxxxxxxxxxxx>
---
drivers/net/ethernet/microchip/lan966x/lan966x_main.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
index ad310c95bf5c..750f2cc2f695 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
@@ -600,7 +600,9 @@ static irqreturn_t lan966x_xtr_irq_handler(int irq, void *args)
skb->offload_fwd_mark = 0;
}

- netif_rx(skb);
+ if (!skb_defer_rx_timestamp(skb))
+ netif_rx(skb);
+
dev->stats.rx_bytes += len;
dev->stats.rx_packets++;

--
2.33.0