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authorRussell King <>2020-07-30 22:51:55 +0100
committerRussell King <>2020-09-09 20:47:54 +0100
commit29edd45f604e142ed7a55cf2b376d500db2d83e9 (patch)
tree787510237719cd5826e6f3450bfc345108f3e90b /.mailmap
parent03260b5a80fb5ca10fb7bd9b0943e10aa71949a3 (diff)
net: mvpp2: ptp: add support for receive timestamping
Add support for receive timestamping. When enabled, the hardware adds a timestamp into the receive queue descriptor for all received packets with no filtering. Hence, we can only support NONE or ALL receive filter modes. The timestamp in the receive queue contains two bit sof seconds and the full nanosecond timestamp. This has to be merged with the remainder of the seconds from the TAI clock to arrive at a full timestamp before we can convert it to a ktime for the skb hardware timestamp field. Acked-by: Richard Cochran <> Signed-off-by: Russell King <>
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