Re: [PATCH v3 09/10] vdpa/mlx5: Configure max supported virtqueues

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在 2021/12/19 下午10:02, Eli Cohen 写道:
Configure max supported virtqueues on the management device. This info
can be retrieved using:

$ vdpa dev show
vdpa-a: type network mgmtdev auxiliary/mlx5_core.sf.1 vendor_id 5555 \
	max_vqp 3 max_vq_size 256 max_supported_vqs 256


I still think we should report 257 here to be aligned with the spec even if we know cvq is probably emulated.



Signed-off-by: Eli Cohen <elic@xxxxxxxxxx>
---
  drivers/vdpa/mlx5/net/mlx5_vnet.c | 1 +
  1 file changed, 1 insertion(+)

diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index 72ed5efbe35d..68dbddadde93 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -2689,6 +2689,7 @@ static int mlx5v_probe(struct auxiliary_device *adev,
  	mgtdev->mgtdev.id_table = id_table;
  	mgtdev->mgtdev.config_attr_mask = BIT_ULL(VDPA_ATTR_DEV_NET_CFG_MACADDR) |
  					  BIT_ULL(VDPA_ATTR_DEV_NET_CFG_MAX_VQP);
+	mgtdev->mgtdev.max_supported_vqs = MLX5_CAP_DEV_VDPA_EMULATION(mdev, max_num_virtio_queues);


Do we need to change other vdpa parent like the simulator and ifcvf?

Thanks


  	mgtdev->madev = madev;
err = vdpa_mgmtdev_register(&mgtdev->mgtdev);

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