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vdpa/mlx5: Correct default number of queues when MQ is on

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The standard specifies that the initial number of queues is the
default, which is 1 (1 tx, 1 rx).

Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <20230727172354.68243-2-dtatulea@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Tested-by: Lei Yang <leiyang@redhat.com>
This commit is contained in:
Dragos Tatulea 2023-07-27 20:23:46 +03:00 committed by Michael S. Tsirkin
parent df95570464
commit 3fe0241933
1 changed files with 9 additions and 1 deletions
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10
drivers/vdpa/mlx5/net/mlx5_vnet.c
View file

@ -2517,7 +2517,15 @@ static int mlx5_vdpa_set_driver_features(struct vdpa_device *vdev, u64 features)
else
ndev->rqt_size = 1;
ndev->cur_num_vqs = 2 * ndev->rqt_size;
/* Device must start with 1 queue pair, as per VIRTIO v1.2 spec, section
* 5.1.6.5.5 "Device operation in multiqueue mode":
*
* Multiqueue is disabled by default.
* The driver enables multiqueue by sending a command using class
* VIRTIO_NET_CTRL_MQ. The command selects the mode of multiqueue
* operation, as follows: ...
*/
ndev->cur_num_vqs = 2;
update_cvq_info(mvdev);
return err;