Re: [PATCH 4/7] vdpa/mlx5: Report queried max supported virtqueues
From: Si-Wei Liu <hidden>
Date: 2021-12-03 07:32:23
On 12/1/2021 11:57 AM, Eli Cohen wrote:
quoted hunk
Report back in get_vq_num_max() the correct number of virtqueues queried from the device instead of using a constant value. Signed-off-by: Eli Cohen <redacted> --- drivers/vdpa/mlx5/net/mlx5_vnet.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index 62aba5dbd8fa..336eda3dcf41 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c@@ -1992,10 +1992,10 @@ static void mlx5_vdpa_set_config_cb(struct vdpa_device *vdev, struct vdpa_callba ndev->config_cb = *cb; } -#define MLX5_VDPA_MAX_VQ_ENTRIES 256 static u16 mlx5_vdpa_get_vq_num_max(struct vdpa_device *vdev) { - return MLX5_VDPA_MAX_VQ_ENTRIES; + struct mlx5_vdpa_dev *mvdev = to_mvdev(vdev); + return MLX5_CAP_DEV_VDPA_EMULATION(mvdev->mdev, max_num_virtio_queues);
This denotes the size i.e. # of descriptor entries in a virtqueue, rather the total number of virtqueues. You need to add another op (vdpa_net specific) to get this info. -Siwei
} static u32 mlx5_vdpa_get_device_id(struct vdpa_device *vdev)
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