From: Feifei Wang Date: Mon, 1 Nov 2021 06:00:07 +0000 (+0800) Subject: distributor: use wait until scheme X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=6b70c6b31f13b4ac1f7431aa8cccd62fdaf84548;p=dpdk.git distributor: use wait until scheme Instead of polling for bufptr64 to be updated, use wait until scheme for this case. Signed-off-by: Feifei Wang Reviewed-by: Ruifeng Wang Acked-by: Jerin Jacob --- diff --git a/lib/distributor/rte_distributor_single.c b/lib/distributor/rte_distributor_single.c index f4725b1d0b..b653620688 100644 --- a/lib/distributor/rte_distributor_single.c +++ b/lib/distributor/rte_distributor_single.c @@ -33,9 +33,8 @@ rte_distributor_request_pkt_single(struct rte_distributor_single *d, union rte_distributor_buffer_single *buf = &d->bufs[worker_id]; int64_t req = (((int64_t)(uintptr_t)oldpkt) << RTE_DISTRIB_FLAG_BITS) | RTE_DISTRIB_GET_BUF; - while (unlikely(__atomic_load_n(&buf->bufptr64, __ATOMIC_RELAXED) - & RTE_DISTRIB_FLAGS_MASK)) - rte_pause(); + RTE_WAIT_UNTIL_MASKED(&buf->bufptr64, RTE_DISTRIB_FLAGS_MASK, + ==, 0, __ATOMIC_RELAXED); /* Sync with distributor on GET_BUF flag. */ __atomic_store_n(&(buf->bufptr64), req, __ATOMIC_RELEASE); @@ -74,9 +73,8 @@ rte_distributor_return_pkt_single(struct rte_distributor_single *d, union rte_distributor_buffer_single *buf = &d->bufs[worker_id]; uint64_t req = (((int64_t)(uintptr_t)oldpkt) << RTE_DISTRIB_FLAG_BITS) | RTE_DISTRIB_RETURN_BUF; - while (unlikely(__atomic_load_n(&buf->bufptr64, __ATOMIC_RELAXED) - & RTE_DISTRIB_FLAGS_MASK)) - rte_pause(); + RTE_WAIT_UNTIL_MASKED(&buf->bufptr64, RTE_DISTRIB_FLAGS_MASK, + ==, 0, __ATOMIC_RELAXED); /* Sync with distributor on RETURN_BUF flag. */ __atomic_store_n(&(buf->bufptr64), req, __ATOMIC_RELEASE);