Jonah Palmer 749a401683 vdpa/mlx5: Allow CVQ size changes ... The MLX driver was not updating its control virtqueue size at set_vq_num and instead always initialized to MLX5_CVQ_MAX_ENT (16) at setup_cvq_vring. Qemu would try to set the size to 64 by default, however, because the CVQ size always was initialized to 16, an error would be thrown when sending >16 control messages (as used-ring entry 17 is initialized to 0). For example, starting a guest with x-svq=on and then executing the following command would produce the error below: # for i in {1..20}; do ifconfig eth0 hw ether XX:xx:XX:xx:XX:XX; done qemu-system-x86_64: Insufficient written data (0) [ 435.331223] virtio_net virtio0: Failed to set mac address by vq command. SIOCSIFHWADDR: Invalid argument Acked-by: Dragos Tatulea <dtatulea@nvidia.com> Acked-by: Eugenio Pérez <eperezma@redhat.com> Signed-off-by: Jonah Palmer <jonah.palmer@oracle.com> Message-Id: <20240216142502.78095-1-jonah.palmer@oracle.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Tested-by: Lei Yang <leiyang@redhat.com> Fixes: 5262912ef3 ("vdpa/mlx5: Add support for control VQ and MAC setting")		2024-03-19 02:45:49 -04:00
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core	vdpa/mlx5: Add mkey leak detection	2024-01-10 13:01:38 -05:00
net	vdpa/mlx5: Allow CVQ size changes	2024-03-19 02:45:49 -04:00
Makefile	vdpa/mlx5: Add debugfs subtree	2023-02-20 19:26:54 -05:00