diff options
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c | 31 |
2 files changed, 25 insertions, 7 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h index 4c0203b01941..ac9f2148cdc5 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h @@ -957,6 +957,7 @@ static inline struct netdev_queue *txring_txq(const struct ixgbe_ring *ring) } void ixgbe_ptp_init(struct ixgbe_adapter *adapter); +void ixgbe_ptp_suspend(struct ixgbe_adapter *adapter); void ixgbe_ptp_stop(struct ixgbe_adapter *adapter); void ixgbe_ptp_overflow_check(struct ixgbe_adapter *adapter); void ixgbe_ptp_rx_hang(struct ixgbe_adapter *adapter); diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c index 9df7e57b9f93..b3266b7536d5 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c @@ -960,28 +960,45 @@ void ixgbe_ptp_init(struct ixgbe_adapter *adapter) } /** - * ixgbe_ptp_stop - disable ptp device and stop the overflow check - * @adapter: pointer to adapter struct + * ixgbe_ptp_suspend - stop PTP work items + * @ adapter: pointer to adapter struct * - * this function stops the ptp support, and cancels the delayed work. + * this function suspends PTP activity, and prevents more PTP work from being + * generated, but does not destroy the PTP clock device. */ -void ixgbe_ptp_stop(struct ixgbe_adapter *adapter) +void ixgbe_ptp_suspend(struct ixgbe_adapter *adapter) { /* Leave the IXGBE_PTP_RUNNING state. */ if (!test_and_clear_bit(__IXGBE_PTP_RUNNING, &adapter->state)) return; - /* stop the PPS signal */ - adapter->flags2 &= ~IXGBE_FLAG2_PTP_PPS_ENABLED; - ixgbe_ptp_setup_sdp(adapter); + /* since this might be called in suspend, we don't clear the state, + * but simply reset the auxiliary PPS signal control register + */ + IXGBE_WRITE_REG(&adapter->hw, IXGBE_TSAUXC, 0x0); + /* ensure that we cancel any pending PTP Tx work item in progress */ cancel_work_sync(&adapter->ptp_tx_work); if (adapter->ptp_tx_skb) { dev_kfree_skb_any(adapter->ptp_tx_skb); adapter->ptp_tx_skb = NULL; clear_bit_unlock(__IXGBE_PTP_TX_IN_PROGRESS, &adapter->state); } +} + +/** + * ixgbe_ptp_stop - close the PTP device + * @adapter: pointer to adapter struct + * + * completely destroy the PTP device, should only be called when the device is + * being fully closed. + */ +void ixgbe_ptp_stop(struct ixgbe_adapter *adapter) +{ + /* first, suspend PTP activity */ + ixgbe_ptp_suspend(adapter); + /* disable the PTP clock device */ if (adapter->ptp_clock) { ptp_clock_unregister(adapter->ptp_clock); adapter->ptp_clock = NULL; |
