On Sun, 25 Apr 2021 05:56:51 +0000 Ruifeng Wang <ruifeng.w...@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. > With the wait until equal APIs being stable, changes will not impact ABI. > > [1] http://patches.dpdk.org/cover/62703/ > > v3: > Series rebased. (David) > > Gavin Hu (1): > spinlock: use wfe to reduce contention on aarch64 > > Ruifeng Wang (1): > ring: use wfe to wait for ring tail update on aarch64 > > lib/eal/include/generic/rte_spinlock.h | 4 ++-- > lib/ring/rte_ring_c11_pvt.h | 4 ++-- > lib/ring/rte_ring_generic_pvt.h | 3 +-- > 3 files changed, 5 insertions(+), 6 deletions(-) > Other places that should use WFE: rte_mcslock.h:rte_mcslock_lock() rte_mcslock_unlock:rte_mcslock_unlock() rte_pflock.h:rte_pflock_lock() rte_rwlock.h:rte_rwlock_read_lock() rte_rwlock.h:rte_rwlock_write_lock() You should also introduce rte_wait_while_XXX variants to handle some of these cases.
