From: Jay Vosburgh <jay.vosburgh@xxxxxxxxxxxxx>
[ Upstream commit e66e257a5d8368d9c0ba13d4630f474436533e8b ]
Since commit 21a75f0915dd ("bonding: Fix ARP monitor validation"),
the bonding ARP / ND link monitors depend on the trans_start time to
determine link availability. NETIF_F_LLTX drivers must update trans_start
directly, which veth does not do. This prevents use of the ARP or ND link
monitors with veth interfaces in a bond.
Resolve this by having veth_xmit update the trans_start time.
Reported-by: Jonathan Toppins <jtoppins@xxxxxxxxxx>
Tested-by: Jonathan Toppins <jtoppins@xxxxxxxxxx>
Signed-off-by: Jay Vosburgh <jay.vosburgh@xxxxxxxxxxxxx>
Fixes: 21a75f0915dd ("bonding: Fix ARP monitor validation")
Link: https://lore.kernel.org/netdev/b2fd4147-8f50-bebd-963a-1a3e8d1d9715@xxxxxxxxxx/
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/veth.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index eb0121a64d6d..1d1dea07d932 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -312,6 +312,7 @@ static bool veth_skb_is_eligible_for_gro(const struct net_device *dev,
static netdev_tx_t veth_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct veth_priv *rcv_priv, *priv = netdev_priv(dev);
+ struct netdev_queue *queue = NULL;
struct veth_rq *rq = NULL;
struct net_device *rcv;
int length = skb->len;
@@ -329,6 +330,7 @@ static netdev_tx_t veth_xmit(struct sk_buff *skb, struct net_device *dev)
rxq = skb_get_queue_mapping(skb);
if (rxq < rcv->real_num_rx_queues) {
rq = &rcv_priv->rq[rxq];
+ queue = netdev_get_tx_queue(dev, rxq);
/* The napi pointer is available when an XDP program is
* attached or when GRO is enabled
@@ -340,6 +342,8 @@ static netdev_tx_t veth_xmit(struct sk_buff *skb, struct net_device *dev)
skb_tx_timestamp(skb);
if (likely(veth_forward_skb(rcv, skb, rq, use_napi) == NET_RX_SUCCESS)) {
+ if (queue)
+ txq_trans_cond_update(queue);
if (!use_napi)
dev_lstats_add(dev, length);
} else {
--
2.35.1
