void igb_ptp_reset(struct igb_adapter *adapter);
void igb_ptp_suspend(struct igb_adapter *adapter);
void igb_ptp_rx_hang(struct igb_adapter *adapter);
+void igb_ptp_tx_hang(struct igb_adapter *adapter);
void igb_ptp_rx_rgtstamp(struct igb_q_vector *q_vector, struct sk_buff *skb);
void igb_ptp_rx_pktstamp(struct igb_q_vector *q_vector, void *va,
struct sk_buff *skb);
igb_spoof_check(adapter);
igb_ptp_rx_hang(adapter);
+ igb_ptp_tx_hang(adapter);
/* Check LVMMC register on i350/i354 only */
if ((adapter->hw.mac.type == e1000_i350) ||
}
/**
+ * igb_ptp_tx_hang - detect error case where Tx timestamp never finishes
+ * @adapter: private network adapter structure
+ */
+void igb_ptp_tx_hang(struct igb_adapter *adapter)
+{
+ bool timeout = time_is_before_jiffies(adapter->ptp_tx_start +
+ IGB_PTP_TX_TIMEOUT);
+
+ if (!adapter->ptp_tx_skb)
+ return;
+
+ if (!test_bit(__IGB_PTP_TX_IN_PROGRESS, &adapter->state))
+ return;
+
+ /* If we haven't received a timestamp within the timeout, it is
+ * reasonable to assume that it will never occur, so we can unlock the
+ * timestamp bit when this occurs.
+ */
+ if (timeout) {
+ cancel_work_sync(&adapter->ptp_tx_work);
+ dev_kfree_skb_any(adapter->ptp_tx_skb);
+ adapter->ptp_tx_skb = NULL;
+ clear_bit_unlock(__IGB_PTP_TX_IN_PROGRESS, &adapter->state);
+ adapter->tx_hwtstamp_timeouts++;
+ dev_warn(&adapter->pdev->dev, "clearing Tx timestamp hang\n");
+ }
+}
+
+/**
* igb_ptp_tx_hwtstamp - utility function which checks for TX time stamp
* @adapter: Board private structure.
*