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path: root/drivers/net/ethernet/intel/e1000e/netdev.c
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Diffstat (limited to 'drivers/net/ethernet/intel/e1000e/netdev.c')
-rw-r--r--drivers/net/ethernet/intel/e1000e/netdev.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 6bd1832e3f3e..b8d252fcad18 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -1163,6 +1163,12 @@ static void e1000e_tx_hwtstamp_work(struct work_struct *work)
skb_tstamp_tx(adapter->tx_hwtstamp_skb, &shhwtstamps);
dev_kfree_skb_any(adapter->tx_hwtstamp_skb);
adapter->tx_hwtstamp_skb = NULL;
+ } else if (time_after(jiffies, adapter->tx_hwtstamp_start
+ + adapter->tx_timeout_factor * HZ)) {
+ dev_kfree_skb_any(adapter->tx_hwtstamp_skb);
+ adapter->tx_hwtstamp_skb = NULL;
+ adapter->tx_hwtstamp_timeouts++;
+ e_warn("clearing Tx timestamp hang");
} else {
/* reschedule to check later */
schedule_work(&adapter->tx_hwtstamp_work);
@@ -5567,6 +5573,7 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
tx_flags |= E1000_TX_FLAGS_HWTSTAMP;
adapter->tx_hwtstamp_skb = skb_get(skb);
+ adapter->tx_hwtstamp_start = jiffies;
schedule_work(&adapter->tx_hwtstamp_work);
} else {
skb_tx_timestamp(skb);