net: atlantic: generate software timestamp just before the doorbell

[ Upstream commit 285ad7477559b6b5ceed10ba7ecfed9d17c0e7c6 ]

Make sure the call of skb_tx_timestamp is as close as possible to the
doorbell.

Signed-off-by: Jason Xing <kernelxing@tencent.com>
Link: https://patch.msgid.link/20250510134812.48199-2-kerneljasonxing@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_main.c b/drivers/net/ethernet/aquantia/atlantic/aq_main.c
index 77609dc0a08d6021c55645becd73732dd815dcd9..9d877f436e3356abf48a5138dfdbca2ec8560656 100644 (file)
--- a/drivers/net/ethernet/aquantia/atlantic/aq_main.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_main.c
@@ -122,7 +122,6 @@ static netdev_tx_t aq_ndev_start_xmit(struct sk_buff *skb, struct net_device *nd
        }
 #endif
 
-       skb_tx_timestamp(skb);
        return aq_nic_xmit(aq_nic, skb);
 }
 

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
index a467c8f91020b1ed5b303c782fdbe123fc2c64f5..3bfd9027cccacc63d05d732f8ea52f8047f5fde2 100644 (file)
--- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
@@ -893,6 +893,8 @@ int aq_nic_xmit(struct aq_nic_s *self, struct sk_buff *skb)
 
        frags = aq_nic_map_skb(self, skb, ring);
 
+       skb_tx_timestamp(skb);
+
        if (likely(frags)) {
                err = self->aq_hw_ops->hw_ring_tx_xmit(self->aq_hw,
                                                       ring, frags);