[dpdk-dev] [PATCH v5 00/16] remove mbuf timestamp

[Stephen Hemminger]

On Tue,  3 Nov 2020 15:09:15 +0100
Thomas Monjalon <thomas at monjalon.net> wrote:

> The mbuf field timestamp was announced to be removed for three reasons:
>   - a dynamic field already exist, used for Tx only
>   - this field always used 8 bytes even if unneeded
>   - this field is in the first half (cacheline) of mbuf
> 
> After this series, the dynamic field timestamp is used for both Rx and Tx
> with separate dynamic flags to distinguish when the value is meaningful
> without resetting the field during forwarding.

There should be a place in documentation which describes all the
dynamic fields and their meaning.  For example, which drivers/features
set the field and the exact meaning.  Is the timestamp in HW units,
UTC units, or TSC ticks?