search

starfive-tech / linux

Other
152 stars 114 forks source link

Missing Ethernet hardware timestamps on JH7100 #67

Open mkszuba opened 2 years ago

mkszuba commented 2 years ago

I have recently set up a Precision Time Protocol master server on my BeagleV Starlight. According to both kernel logs and ethtool, the NIC available on this board supports hardware timestamping for both RX and TX - but when I try to run ptp4l on it it immediately starts reporting "missing timestamp on transmitted sync" and declares itself as faulty. Is this a bug, or does this NIC not really support this feature?

Hardware: BeagleV Starlight beta board Kernel: head of the branch visionfive-5.15.y from this repository rebased against vanilla kernel version 5.15.66 Miscellaneous: kernel booted with the option stmmac.chain_mode=1

mkszuba commented 2 years ago

Incidentally, it would be nice if you could periodically rebase visionfive-5.15.y against vanilla once in a while - it is the LTS branch after all so it would be good to have it up to date for those who want a bit more stable RISC-V environment.