[dpdk-dev] [PATCH v2 2/4] net/virtio: reject deferred start Tx queue setup

[Andrew Rybchenko]

From: Dilshod Urazov <dilshod.ura...@oktetlabs.ru>

Deferred start Tx queue is not supported by the driver.

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

Signed-off-by: Dilshod Urazov <dilshod.ura...@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybche...@solarflare.com>
Reviewed-by: Tiwei Bie <tiwei....@intel.com>
---
 drivers/net/virtio/virtio_rxtx.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c
index a8cd80100..f29e2154b 100644
--- a/drivers/net/virtio/virtio_rxtx.c
+++ b/drivers/net/virtio/virtio_rxtx.c
@@ -1057,6 +1057,11 @@ virtio_dev_tx_queue_setup(struct rte_eth_dev *dev,
 
        PMD_INIT_FUNC_TRACE();
 
+       if (tx_conf->tx_deferred_start) {
+               PMD_INIT_LOG(ERR, "Tx 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