[dpdk-dev] [PATCH v2 1/4] net/virtio: reject deferred start Rx queue setup

[Andrew Rybchenko]

From: Dilshod Urazov <Dilshod.Urazov at oktetlabs.ru>

Deferred start Rx queue is not supported by the driver.

Fixes: 0748be2cf9a2 ("ethdev: queue start and stop")
Cc: stable at dpdk.org

Signed-off-by: Dilshod Urazov <Dilshod.Urazov at oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
---
 drivers/net/virtio/virtio_rxtx.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c
index 929aa4cbd..a8cd80100 100644
--- a/drivers/net/virtio/virtio_rxtx.c
+++ b/drivers/net/virtio/virtio_rxtx.c
@@ -919,7 +919,7 @@ virtio_dev_rx_queue_setup(struct rte_eth_dev *dev,
 			uint16_t queue_idx,
 			uint16_t nb_desc,
 			unsigned int socket_id __rte_unused,
-			const struct rte_eth_rxconf *rx_conf __rte_unused,
+			const struct rte_eth_rxconf *rx_conf,
 			struct rte_mempool *mp)
 {
 	uint16_t vtpci_queue_idx = 2 * queue_idx + VTNET_SQ_RQ_QUEUE_IDX;
@@ -929,6 +929,11 @@ virtio_dev_rx_queue_setup(struct rte_eth_dev *dev,
 
 	PMD_INIT_FUNC_TRACE();
 
+	if (rx_conf->rx_deferred_start) {
+		PMD_INIT_LOG(ERR, "Rx deferred start is not supported");
+		return -EINVAL;
+	}
+
 	if (nb_desc == 0 || nb_desc > vq->vq_nentries)
 		nb_desc = vq->vq_nentries;
 	vq->vq_free_cnt = RTE_MIN(vq->vq_free_cnt, nb_desc);
-- 
2.17.1