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vhost: export number of queues

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Introduce a new API rte_vhost_get_queue_num() to export the number of
queues.

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Tested-by: Rich Lane <rich.lane@bigswitch.com>
Acked-by: Rich Lane <rich.lane@bigswitch.com>
This commit is contained in:
Yuanhan Liu 2016-05-11 06:23:32 +08:00
parent 586e390013
commit 4b4af666b9
4 changed files with 24 additions and 1 deletions
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2
drivers/net/vhost/rte_eth_vhost.c
View File

@ -270,7 +270,7 @@ new_device(struct virtio_net *dev)
vq->port = eth_dev->data->port_id;
}
for (i = 0; i < dev->virt_qp_nb * VIRTIO_QNUM; i++)
for (i = 0; i < rte_vhost_get_queue_num(dev->vid) * VIRTIO_QNUM; i++)
rte_vhost_enable_guest_notification(dev, i, 0);
dev->priv = eth_dev;

1
lib/librte_vhost/rte_vhost_version.map
View File

@ -25,5 +25,6 @@ DPDK_16.07 {
global:
rte_vhost_get_numa_node;
rte_vhost_get_queue_num;
} DPDK_2.1;

11
lib/librte_vhost/rte_virtio_net.h
View File

@ -256,6 +256,17 @@ int rte_vhost_driver_session_start(void);
*/
int rte_vhost_get_numa_node(int vid);
/**
* Get the number of queues the device supports.
*
* @param vid
* virtio-net device ID
*
* @return
* The number of queues, 0 on failure
*/
uint32_t rte_vhost_get_queue_num(int vid);
/**
* This function adds buffers to the virtio devices RX virtqueue. Buffers can
* be received from the physical port or from another virtual device. A packet

11
lib/librte_vhost/virtio-net.c
View File

@ -756,6 +756,17 @@ rte_vhost_get_numa_node(int vid)
#endif
}
uint32_t
rte_vhost_get_queue_num(int vid)
{
struct virtio_net *dev = get_device(vid);
if (dev == NULL)
return 0;
return dev->virt_qp_nb;
}
int rte_vhost_enable_guest_notification(struct virtio_net *dev,
uint16_t queue_id, int enable)
{