From 91d6b8235e726a40b87e9268b9686231eb1f7741 Mon Sep 17 00:00:00 2001 From: Lukasz Wojciechowski Date: Sat, 17 Oct 2020 05:06:58 +0200 Subject: [PATCH] distributor: fix flushing in flight packets rte_distributor_flush() is using total_outstanding() function to calculate if it should still wait for processing packets. However in burst mode only backlog packets were counted. This patch fixes that issue by counting also in flight packets. There are also sum fixes to properly keep count of in flight packets for each worker in bufs[].count. Fixes: 775003ad2f96 ("distributor: add new burst-capable library") Cc: stable@dpdk.org Signed-off-by: Lukasz Wojciechowski Acked-by: David Hunt --- lib/librte_distributor/rte_distributor.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/lib/librte_distributor/rte_distributor.c b/lib/librte_distributor/rte_distributor.c index 9fea3f69ab..fb4e9d93f9 100644 --- a/lib/librte_distributor/rte_distributor.c +++ b/lib/librte_distributor/rte_distributor.c @@ -465,6 +465,7 @@ rte_distributor_process(struct rte_distributor *d, /* Sync with worker on GET_BUF flag. */ if (__atomic_load_n(&(d->bufs[wid].bufptr64[0]), __ATOMIC_ACQUIRE) & RTE_DISTRIB_GET_BUF) { + d->bufs[wid].count = 0; release(d, wid); handle_returns(d, wid); } @@ -479,11 +480,6 @@ rte_distributor_process(struct rte_distributor *d, uint16_t matches[RTE_DIST_BURST_SIZE]; unsigned int pkts; - /* Sync with worker on GET_BUF flag. */ - if (__atomic_load_n(&(d->bufs[wkr].bufptr64[0]), - __ATOMIC_ACQUIRE) & RTE_DISTRIB_GET_BUF) - d->bufs[wkr].count = 0; - if ((num_mbufs - next_idx) < RTE_DIST_BURST_SIZE) pkts = num_mbufs - next_idx; else @@ -603,8 +599,10 @@ rte_distributor_process(struct rte_distributor *d, for (wid = 0 ; wid < d->num_workers; wid++) /* Sync with worker on GET_BUF flag. */ if ((__atomic_load_n(&(d->bufs[wid].bufptr64[0]), - __ATOMIC_ACQUIRE) & RTE_DISTRIB_GET_BUF)) + __ATOMIC_ACQUIRE) & RTE_DISTRIB_GET_BUF)) { + d->bufs[wid].count = 0; release(d, wid); + } return num_mbufs; } @@ -647,7 +645,7 @@ total_outstanding(const struct rte_distributor *d) unsigned int wkr, total_outstanding = 0; for (wkr = 0; wkr < d->num_workers; wkr++) - total_outstanding += d->backlog[wkr].count; + total_outstanding += d->backlog[wkr].count + d->bufs[wkr].count; return total_outstanding; } -- 2.20.1