diff options
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_ethtool.c | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_main.c | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_ptp.c | 10 |
4 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h index 8372c002102c..8c6f59d95b20 100644 --- a/drivers/net/ethernet/intel/igb/igb.h +++ b/drivers/net/ethernet/intel/igb/igb.h @@ -414,9 +414,11 @@ struct igb_adapter { struct delayed_work ptp_overflow_work; struct work_struct ptp_tx_work; struct sk_buff *ptp_tx_skb; + unsigned long ptp_tx_start; spinlock_t tmreg_lock; struct cyclecounter cc; struct timecounter tc; + u32 tx_hwtstamp_timeouts; char fw_version[32]; #ifdef CONFIG_IGB_HWMON diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c index 61803032fdd3..6f2579c50d8e 100644 --- a/drivers/net/ethernet/intel/igb/igb_ethtool.c +++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c @@ -92,6 +92,7 @@ static const struct igb_stats igb_gstrings_stats[] = { IGB_STAT("os2bmc_tx_by_bmc", stats.b2ospc), IGB_STAT("os2bmc_tx_by_host", stats.o2bspc), IGB_STAT("os2bmc_rx_by_host", stats.b2ogprc), + IGB_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), }; #define IGB_NETDEV_STAT(_net_stat) { \ diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 9dd3da540cd0..9540a814a225 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -4618,6 +4618,7 @@ netdev_tx_t igb_xmit_frame_ring(struct sk_buff *skb, tx_flags |= IGB_TX_FLAGS_TSTAMP; adapter->ptp_tx_skb = skb_get(skb); + adapter->ptp_tx_start = jiffies; if (adapter->hw.mac.type == e1000_82576) schedule_work(&adapter->ptp_tx_work); } diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c index ab3429729bde..086af4683544 100644 --- a/drivers/net/ethernet/intel/igb/igb_ptp.c +++ b/drivers/net/ethernet/intel/igb/igb_ptp.c @@ -70,6 +70,7 @@ */ #define IGB_SYSTIM_OVERFLOW_PERIOD (HZ * 60 * 9) +#define IGB_PTP_TX_TIMEOUT (HZ * 15) #define INCPERIOD_82576 (1 << E1000_TIMINCA_16NS_SHIFT) #define INCVALUE_82576_MASK ((1 << E1000_TIMINCA_16NS_SHIFT) - 1) #define INCVALUE_82576 (16 << IGB_82576_TSYNC_SHIFT) @@ -396,6 +397,15 @@ void igb_ptp_tx_work(struct work_struct *work) if (!adapter->ptp_tx_skb) return; + if (time_is_before_jiffies(adapter->ptp_tx_start + + IGB_PTP_TX_TIMEOUT)) { + dev_kfree_skb_any(adapter->ptp_tx_skb); + adapter->ptp_tx_skb = NULL; + adapter->tx_hwtstamp_timeouts++; + dev_warn(&adapter->pdev->dev, "clearing Tx timestamp hang"); + return; + } + tsynctxctl = rd32(E1000_TSYNCTXCTL); if (tsynctxctl & E1000_TSYNCTXCTL_VALID) igb_ptp_tx_hwtstamp(adapter); |