Re: [PATCH bpf-next v3 3/3] selftests/bpf: add Launch Time request to xdp_hw_metadata

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Jesper Dangaard Brouer wrote:
> 
> 
> On 12/3/23 17:51, Song Yoong Siang wrote:
> > This patch is tested with stmmac on Intel Tiger Lake platform. Refer to
> > result below, the delta between pre-determined launch time and actual HW
> > transmit complete time is around 24 us.
> 
> Is there any NIC setup (e.g. ethtool/qdisc) requirements to enable HW 
> for this feature?

Judging from how we currently use this with FQ and ETF, no.

See for instance tools/testing/selftests/net/so_txtime.sh





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