On Fri, Jul 28, 2023 at 1:25 AM Dragos Tatulea <dtatulea@xxxxxxxxxx> wrote: > > 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@xxxxxxxxxx> > Reviewed-by: Eugenio Pérez <eperezma@xxxxxxxxxx> Acked-by: Jason Wang <jasowang@xxxxxxxxxx> Thanks > --- > drivers/vdpa/mlx5/net/mlx5_vnet.c | 10 +++++++++- > 1 file changed, 9 insertions(+), 1 deletion(-) > > diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c > index 9138ef2fb2c8..6b6eb69a8a90 100644 > --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c > +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c > @@ -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; > -- > 2.41.0 > _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
