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Message-ID: <20240708-stage-vdpa-vq-precreate-v3-24-afe3c766e393@nvidia.com>
Date: Mon, 8 Jul 2024 15:00:48 +0300
From: Dragos Tatulea <dtatulea@...dia.com>
To: "Michael S. Tsirkin" <mst@...hat.com>, Jason Wang <jasowang@...hat.com>,
Xuan Zhuo <xuanzhuo@...ux.alibaba.com>, Eugenio Pérez
<eperezma@...hat.com>, Saeed Mahameed <saeedm@...dia.com>, Leon Romanovsky
<leon@...nel.org>, Tariq Toukan <tariqt@...dia.com>, Si-Wei Liu
<si-wei.liu@...cle.com>
CC: <virtualization@...ts.linux.dev>, <linux-kernel@...r.kernel.org>,
<linux-rdma@...r.kernel.org>, <netdev@...r.kernel.org>, Cosmin Ratiu
<cratiu@...dia.com>, Dragos Tatulea <dtatulea@...dia.com>
Subject: [PATCH vhost v3 24/24] vdpa/mlx5: Don't enable non-active VQs in
.set_vq_ready()
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@...dia.com>
Acked-by: Eugenio Pérez <eperezma@...hat.com>
Signed-off-by: Dragos Tatulea <dtatulea@...dia.com>
---
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
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