Commit d8d577b5 authored by Yishai Hadas's avatar Yishai Hadas Committed by Alex Williamson
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vfio/mlx5: Block incremental query upon migf state error 



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: default avatarYishai Hadas <yishaih@nvidia.com>
Reviewed-by: default avatarKevin Tian <kevin.tian@intel.com>
Acked-by: default avatarLeon Romanovsky <leon@kernel.org>
Link: https://lore.kernel.org/r/20240205124828.232701-5-yishaih@nvidia.com


Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
parent 793d4bfa

drivers/vfio/pci/mlx5/cmd.c

+5 −0
Original line number Diff line number Diff line
@@ -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,