[PATCH vhost v3 24/24] vdpa/mlx5: Don't enable non-active VQs in .set_vq_ready()

From: Dragos Tatulea
Date: Mon Jul 08 2024 - 08:10:42 EST


VQ indices in the range [cur_num_qps, max_vqs) represent queues that
have not yet been activated. .set_vq_ready should not activate these
VQs.

Reviewed-by: Cosmin Ratiu <cratiu@xxxxxxxxxx>
Acked-by: Eugenio Pérez <eperezma@xxxxxxxxxx>
Signed-off-by: Dragos Tatulea <dtatulea@xxxxxxxxxx>
---
drivers/vdpa/mlx5/net/mlx5_vnet.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index 4e464a22381b..4557b2d29c02 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -1575,6 +1575,9 @@ static int resume_vq(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtqueue *mvq
if (!mvq->initialized)
return 0;

+ if (mvq->index >= ndev->cur_num_vqs)
+ return 0;
+
switch (mvq->fw_state) {
case MLX5_VIRTIO_NET_Q_OBJECT_STATE_INIT:
/* Due to a FW quirk we need to modify the VQ fields first then change state.

--
2.45.2