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authorYishai Hadas <yishaih@nvidia.com>2024-02-05 14:48:26 +0200
committerAlex Williamson <alex.williamson@redhat.com>2024-02-22 12:17:32 -0700
commit793d4bfa3103a238c6e48eb13c38fa31acd18b94 (patch)
tree6c3f9a368f949b3fb9714af5701fdf92d573f9cd /drivers/vfio
parentf886473071d6c0c98857eb5d7871a5e5ac26e950 (diff)
vfio/mlx5: Handle the EREMOTEIO error upon the SAVE command
The SAVE command uses the async command interface over the PF. Upon a failure in the firmware -EREMOTEIO is returned. In that case call mlx5_cmd_out_err() to let it print the command failure details including the firmware syndrome. Note: The other commands in the driver use the sync command interface in a way that a firmware syndrome is printed upon an error inside mlx5_core. 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/20240205124828.232701-4-yishaih@nvidia.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio')
-rw-r--r--drivers/vfio/pci/mlx5/cmd.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/vfio/pci/mlx5/cmd.c b/drivers/vfio/pci/mlx5/cmd.c
index 8a39ff19da28..6b45bd7d89ad 100644
--- a/drivers/vfio/pci/mlx5/cmd.c
+++ b/drivers/vfio/pci/mlx5/cmd.c
@@ -614,8 +614,13 @@ static void mlx5vf_save_callback(int status, struct mlx5_async_work *context)
err:
/* The error flow can't run from an interrupt context */
- if (status == -EREMOTEIO)
+ if (status == -EREMOTEIO) {
status = MLX5_GET(save_vhca_state_out, async_data->out, status);
+ /* Failed in FW, print cmd out failure details */
+ mlx5_cmd_out_err(migf->mvdev->mdev, MLX5_CMD_OP_SAVE_VHCA_STATE, 0,
+ async_data->out);
+ }
+
async_data->status = status;
queue_work(migf->mvdev->cb_wq, &async_data->work);
}