Block incremental query which is state-dependent once the migration file
was previously marked with state error.
This may prevent redundant calls to firmware upon PRE_COPY which will
end-up with a failure and a syndrome printed in dmesg.
Signed-off-by: Yishai Hadas <yishaih@xxxxxxxxxx>
---
drivers/vfio/pci/mlx5/cmd.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/vfio/pci/mlx5/cmd.c b/drivers/vfio/pci/mlx5/cmd.c
index 6b45bd7d89ad..6800e4ffe9ee 100644
--- a/drivers/vfio/pci/mlx5/cmd.c
+++ b/drivers/vfio/pci/mlx5/cmd.c
@@ -121,6 +121,11 @@ int mlx5vf_cmd_query_vhca_migration_state(struct mlx5vf_pci_core_device *mvdev,
}
query_flags &= ~MLX5VF_QUERY_INC;
}
+ /* Block incremental query which is state-dependent */
+ if (mvdev->saving_migf->state == MLX5_MIGF_STATE_ERROR) {
+ complete(&mvdev->saving_migf->save_comp);
+ return -ENODEV;
+ }
}
MLX5_SET(query_vhca_migration_state_in, in, opcode,
--
2.18.1
