Add the function "vport_ndo_tx_timeout()" and register it as the driver's
.ndo_tx_timeout callback.
Signed-off-by: Siddharth Vadapalli <s-vadapalli@xxxxxx>
---
drivers/net/ethernet/ti/cpsw-proxy-client.c | 26 +++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/drivers/net/ethernet/ti/cpsw-proxy-client.c b/drivers/net/ethernet/ti/cpsw-proxy-client.c
index 6886557aa2a1..92a014e83c6c 100644
--- a/drivers/net/ethernet/ti/cpsw-proxy-client.c
+++ b/drivers/net/ethernet/ti/cpsw-proxy-client.c
@@ -1596,11 +1596,37 @@ static void vport_ndo_get_stats(struct net_device *ndev,
stats->tx_dropped = ndev->stats.tx_dropped;
}
+static void vport_ndo_tx_timeout(struct net_device *ndev, unsigned int txqueue)
+{
+ struct virtual_port *vport = vport_ndev_to_vport(ndev);
+ struct netdev_queue *netif_txq;
+ struct tx_dma_chan *tx_chn;
+ unsigned long trans_start;
+
+ /* process every txq */
+ netif_txq = netdev_get_tx_queue(ndev, txqueue);
+ tx_chn = &vport->tx_chans[txqueue];
+ trans_start = READ_ONCE(netif_txq->trans_start);
+
+ netdev_err(ndev, "txq:%d DRV_XOFF: %d tmo: %u dql_avail:%d free_desc:%zu\n",
+ txqueue, netif_tx_queue_stopped(netif_txq),
+ jiffies_to_msecs(jiffies - trans_start),
+ dql_avail(&netif_txq->dql),
+ k3_cppi_desc_pool_avail(tx_chn->desc_pool));
+
+ if (netif_tx_queue_stopped(netif_txq)) {
+ /* try to recover if it was stopped by driver */
+ txq_trans_update(netif_txq);
+ netif_tx_wake_queue(netif_txq);
+ }
+}
+
static const struct net_device_ops cpsw_proxy_client_netdev_ops = {
.ndo_open = vport_ndo_open,
.ndo_stop = vport_ndo_stop,
.ndo_start_xmit = vport_ndo_xmit,
.ndo_get_stats64 = vport_ndo_get_stats,
+ .ndo_tx_timeout = vport_ndo_tx_timeout,
};
static int init_netdev(struct cpsw_proxy_priv *proxy_priv, struct virtual_port *vport)
--
2.40.1
