diff mbox series

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

Message ID 20240708-stage-vdpa-vq-precreate-v3-24-afe3c766e393@nvidia.com (mailing list archive)
State Not Applicable
Headers show
Series vdpa/mlx5: Pre-create HW VQs to reduce LM downtime | expand

Commit Message

Dragos Tatulea July 8, 2024, noon UTC 
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@nvidia.com>
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
---
 drivers/vdpa/mlx5/net/mlx5_vnet.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

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.