Re: [dpdk-dev] [PATCH v7 1/6] lib/eal: implement the family of PMD bit operation APIs

[Thomas Monjalon <thomas@monjalon.net>]

01/04/2020 10:27, Gavin Hu:
> Hi Thomas,
> 
> From: Thomas Monjalon <thomas@monjalon.net>
> > 
> > Hi,
> > 
> > 09/03/2020 10:54, Joyce Kong:
> > > Bitwise operation APIs are defined and used in a lot of PMDs,
> > > which caused a huge code duplication.
> > 
> > Statistics of the series: 653 insertions(+), 326 deletions(-)
> > I would not say it is a huge duplication.
> We did not include all PMDs, just a few for piloting and seeking opinions.
> It is a huge duplication when counting all the PMDs.
> > 
> > > To reduce duplication,
> > > this patch consolidates them into a common API family.
> > [...]
> > > +PMD Bitops
> > > +M: Joyce Kong <joyce.kong@arm.com>
> > > +F: lib/librte_eal/common/include/rte_pmd_bitops.h
> > 
> > Why is it called PMD bitops and not simply bitops?
> 
> The scope of these APIs are decreased to PMD use only, for libraries/applications, it is recommended to use C11 directly as there are complications of more ordering models involved. 

OK, but PMD means nothing, except this is where it is used *now*.
Please describe and name the API with memory ordering words.