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Commit b66e2397 authored by Matthew Vick's avatar Matthew Vick Committed by Jeff Kirsher
Browse files

igb: Add support for SW timestamping 



Enable SW timestamping for situations where the user may prefer it over HW
timestamping or there may not be HW timestamping.

Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: default avatarMatthew Vick <matthew.vick@intel.com>
Acked-by: default avatarJacob Keller <Jacob.e.keller@intel.com>
Tested-by: default avatarAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent e428893b

drivers/net/ethernet/intel/igb/igb_ethtool.c

+9 −0
Original line number Diff line number Diff line
@@ -2272,12 +2272,21 @@ static int igb_get_ts_info(struct net_device *dev, 
	struct igb_adapter *adapter = netdev_priv(dev);



	switch (adapter->hw.mac.type) {

	case e1000_82575:

		info->so_timestamping =

			SOF_TIMESTAMPING_TX_SOFTWARE |

			SOF_TIMESTAMPING_RX_SOFTWARE |

			SOF_TIMESTAMPING_SOFTWARE;

		return 0;

	case e1000_82576:

	case e1000_82580:

	case e1000_i350:

	case e1000_i210:

	case e1000_i211:

		info->so_timestamping =

			SOF_TIMESTAMPING_TX_SOFTWARE |

			SOF_TIMESTAMPING_RX_SOFTWARE |

			SOF_TIMESTAMPING_SOFTWARE |

			SOF_TIMESTAMPING_TX_HARDWARE |

			SOF_TIMESTAMPING_RX_HARDWARE |

			SOF_TIMESTAMPING_RAW_HARDWARE;

drivers/net/ethernet/intel/igb/igb_main.c

+2 −0
Original line number Diff line number Diff line
@@ -4610,6 +4610,8 @@ netdev_tx_t igb_xmit_frame_ring(struct sk_buff *skb, 
	first->bytecount = skb->len;

	first->gso_segs = 1;



	skb_tx_timestamp(skb);



	if (unlikely((skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&

		     !(adapter->ptp_tx_skb))) {

		skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;