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vfio/mlx5: Block incremental query upon migf state error

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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@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Leon Romanovsky <leon@kernel.org>
Link: https://lore.kernel.org/r/20240205124828.232701-5-yishaih@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Yishai Hadas 2024-02-05 14:48:27 +02:00 committed by Alex Williamson
parent 793d4bfa31
commit d8d577b5fa
1 changed files with 5 additions and 0 deletions
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5
drivers/vfio/pci/mlx5/cmd.c
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@ -121,6 +121,11 @@ int mlx5vf_cmd_query_vhca_migration_state(struct mlx5vf_pci_core_device *mvdev,
} }
query_flags &= ~MLX5VF_QUERY_INC; 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, MLX5_SET(query_vhca_migration_state_in, in, opcode,