net/vhost: initialise device as inactive

rte_eth_vhost_get_vid_from_port_id returns a value of 0 if
called before the first call to the new_device callback.
A vid value >=0 suggests the device is active which is not
the case in this instance. Initialise vid to a negative
value to prevent this.

Fixes: ee584e9710b9 ("vhost: add driver on top of the library")
Cc: stable@dpdk.org
Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
index ff5424a..bd42eee 100644 (file)
--- a/drivers/net/vhost/rte_eth_vhost.c
+++ b/drivers/net/vhost/rte_eth_vhost.c
@@ -94,7 +94,7 @@ struct pmd_internal {
        char *dev_name;
        char *iface_name;
        uint16_t max_queues;
-       uint16_t vid;
+       int vid;
        rte_atomic32_t started;
        uint8_t vlan_strip;
 };
@@ -1259,6 +1259,7 @@ eth_dev_vhost_create(struct rte_vdev_device *dev, char *iface_name,
        data->nb_rx_queues = queues;
        data->nb_tx_queues = queues;
        internal->max_queues = queues;
+       internal->vid = -1;
        data->dev_link = pmd_link;
        data->mac_addrs = eth_addr;
        data->dev_flags = RTE_ETH_DEV_INTR_LSC;