From: Andrew Rybchenko <arybchenko@solarflare.com>
Date: Wed, 9 Oct 2019 12:32:08 +0000 (+0100)
Subject: net/virtio: reject unsupported Tx multi-queue modes
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=9fc963acc26f31c46e4c7f8527b60fa2e5505f8f;p=dpdk.git

net/virtio: reject unsupported Tx multi-queue modes

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@dpdk.org

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 76bd40a3e4..646de9945c 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -2073,6 +2073,13 @@ 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)