vhost removes limit of RX burst size(32 pkts) and supports to make
an best effort to receive pkts.
Cc: yuanhan....@linux.intel.com
Cc: maxime.coque...@redhat.com
Signed-off-by: Zhiyong Yang <zhiyong.y...@intel.com>
---
drivers/net/vhost/rte_eth_vhost.c | 23 +++++++++++++++++++++--
1 file changed, 21 insertions(+), 2 deletions(-)
diff --git a/drivers/net/vhost/rte_eth_vhost.c
b/drivers/net/vhost/rte_eth_vhost.c
index 1e1fa34..8a97c2a 100644
--- a/drivers/net/vhost/rte_eth_vhost.c
+++ b/drivers/net/vhost/rte_eth_vhost.c
@@ -402,9 +402,28 @@ eth_vhost_rx(void *q, struct rte_mbuf **bufs, uint16_t
nb_bufs)
goto out;
/* Dequeue packets from guest TX queue */
- nb_rx = rte_vhost_dequeue_burst(r->vid,
- r->virtqueue_id, r->mb_pool, bufs, nb_bufs);
+ if (likely(nb_bufs <= VHOST_MAX_PKT_BURST))
+ nb_rx = rte_vhost_dequeue_burst(r->vid, r->virtqueue_id,
+ r->mb_pool, bufs, nb_bufs);
+ else {
+ uint16_t nb_receive = nb_bufs;
+
+ while (nb_receive) {
+ uint16_t nb_pkts;
+ uint16_t num = (uint16_t)RTE_MIN(nb_receive,
+ VHOST_MAX_PKT_BURST);
+ nb_pkts = rte_vhost_dequeue_burst(r->vid,
+ r->virtqueue_id,
+ r->mb_pool,
+ &bufs[nb_rx], num);
+
+ nb_rx += nb_pkts;
+ nb_receive -= nb_pkts;
+ if (nb_pkts < num)
+ break;
+ }
+ }
r->stats.pkts += nb_rx;
for (i = 0; likely(i < nb_rx); i++) {
--
2.7.4
