[dpdk-dev] [PATCH v2 4/4] net/virtio: reject unsupported Tx multi queue modes

[Andrew Rybchenko]

This driver supports none of DCB or VMDQ modes, therefore must
check and return error if configured incorrectly.

Fixes: c1f86306a026 ("virtio: add new driver")
Cc: stable at dpdk.org

Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
---
 drivers/net/virtio/virtio_ethdev.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 0af4fc392..7d3db4d73 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -2078,6 +2078,13 @@ virtio_dev_configure(struct rte_eth_dev *dev)
 		return -EINVAL;
 	}
 
+	if (txmode->mq_mode != ETH_MQ_TX_NONE) {
+		PMD_DRV_LOG(ERR,
+			"Unsupported Tx multi queue mode %d",
+			txmode->mq_mode);
+		return -EINVAL;
+	}
+
 	if (dev->data->dev_conf.intr_conf.rxq) {
 		ret = virtio_init_device(dev, hw->req_guest_features);
 		if (ret < 0)
-- 
2.17.1