<snip> > Subject: Re: [PATCH v2 0/2] Use WFE for spinlock and ring > > On Sun, Apr 26, 2020 at 10:39 AM Gavin Hu <gavin...@arm.com> wrote: > > > > The rte_wait_until_equal_xxx APIs abstract the functionality of > > 'polling for a memory location to become equal to a given value'[1]. > > > > Use the API for the rte spinlock and ring implementations. > > > > [1] http://patches.dpdk.org/cover/62703/ > > > > Gavin Hu (2): > > spinlock: use wfe to reduce contention on aarch64 > > ring: use wfe to wait for ring tail update on aarch64 > > This would result in rte_ring and rte_spinlock APIs becoming experimental > and this breaks compilation for external applications using stable ring and > spinlock APIs. > IIRC, it was the reason why these patches were dropped with the introduction > of the rte_wait_until_equal_* API. Agreed, the rte_ring new sync modes are resulting in different use cases for these APIs. We need to take a relook at the APIs.
> > > -- > David Marchand
