Steve Sistare dd3438abfb vdpa/mlx5: preserve CVQ vringh index ... [ Upstream commit 480b3e7372 ] mlx5_vdpa does not preserve userland's view of vring base for the control queue in the following sequence: ioctl VHOST_SET_VRING_BASE ioctl VHOST_VDPA_SET_STATUS VIRTIO_CONFIG_S_DRIVER_OK mlx5_vdpa_set_status() setup_cvq_vring() vringh_init_iotlb() vringh_init_kern() vrh->last_avail_idx = 0; ioctl VHOST_GET_VRING_BASE To fix, restore the value of cvq->vring.last_avail_idx after calling vringh_init_iotlb. Fixes: 5262912ef3 ("vdpa/mlx5: Add support for control VQ and MAC setting") Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Acked-by: Eugenio Pérez <eperezma@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Message-Id: <1699014387-194368-1-git-send-email-steven.sistare@oracle.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-12-13 18:44:55 +01:00
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core	vdpa/mlx5: Remove unused function declarations	2023-09-03 18:10:22 -04:00
net	vdpa/mlx5: preserve CVQ vringh index	2023-12-13 18:44:55 +01:00
Makefile	vdpa/mlx5: Add debugfs subtree	2023-02-20 19:26:54 -05:00