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net/mlx5: Lag, move devcom registration to LAG layer

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Move the devcom registration for the HCA_PORTS component from the core
initialization path into the LAG logic. This better reflects the logical
ownership of this component and ensures proper alignment with the LAG
lifecycle.

Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1757940070-618661-3-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Shay Drory
2025-09-15 15:41:08 +03:00
committed by Jakub Kicinski
parent f05a82fbcc
commit 5a977b5833
2 changed files with 30 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c
View File

@@ -1404,6 +1404,34 @@ static int __mlx5_lag_dev_add_mdev(struct mlx5_core_dev *dev)
return 0;
}
static void mlx5_lag_unregister_hca_devcom_comp(struct mlx5_core_dev *dev)
{
mlx5_devcom_unregister_component(dev->priv.hca_devcom_comp);
}
static int mlx5_lag_register_hca_devcom_comp(struct mlx5_core_dev *dev)
{
struct mlx5_devcom_match_attr attr = {
.key.val = mlx5_query_nic_system_image_guid(dev),
};
/* This component is use to sync adding core_dev to lag_dev and to sync
* changes of mlx5_adev_devices between LAG layer and other layers.
*/
dev->priv.hca_devcom_comp =
mlx5_devcom_register_component(dev->priv.devc,
MLX5_DEVCOM_HCA_PORTS,
&attr, NULL, dev);
if (IS_ERR(dev->priv.hca_devcom_comp)) {
mlx5_core_err(dev,
"Failed to register devcom HCA component, err: %ld\n",
PTR_ERR(dev->priv.hca_devcom_comp));
return PTR_ERR(dev->priv.hca_devcom_comp);
}
return 0;
}
void mlx5_lag_remove_mdev(struct mlx5_core_dev *dev)
{
struct mlx5_lag *ldev;
@@ -1425,6 +1453,7 @@ void mlx5_lag_remove_mdev(struct mlx5_core_dev *dev)
}
mlx5_ldev_remove_mdev(ldev, dev);
mutex_unlock(&ldev->lock);
mlx5_lag_unregister_hca_devcom_comp(dev);
mlx5_ldev_put(ldev);
}
@@ -1435,7 +1464,7 @@ void mlx5_lag_add_mdev(struct mlx5_core_dev *dev)
if (!mlx5_lag_is_supported(dev))
return;
if (IS_ERR_OR_NULL(dev->priv.hca_devcom_comp))
if (mlx5_lag_register_hca_devcom_comp(dev))
return;
recheck:

27
drivers/net/ethernet/mellanox/mlx5/core/main.c
View File

@@ -973,30 +973,6 @@ static void mlx5_pci_close(struct mlx5_core_dev *dev)
mlx5_pci_disable_device(dev);
}
static void mlx5_register_hca_devcom_comp(struct mlx5_core_dev *dev)
{
struct mlx5_devcom_match_attr attr = {
.key.val = mlx5_query_nic_system_image_guid(dev),
};
/* This component is use to sync adding core_dev to lag_dev and to sync
* changes of mlx5_adev_devices between LAG layer and other layers.
*/
if (!mlx5_lag_is_supported(dev))
return;
dev->priv.hca_devcom_comp =
mlx5_devcom_register_component(dev->priv.devc, MLX5_DEVCOM_HCA_PORTS,
&attr, NULL, dev);
if (IS_ERR(dev->priv.hca_devcom_comp))
mlx5_core_err(dev, "Failed to register devcom HCA component\n");
}
static void mlx5_unregister_hca_devcom_comp(struct mlx5_core_dev *dev)
{
mlx5_devcom_unregister_component(dev->priv.hca_devcom_comp);
}
static int mlx5_init_once(struct mlx5_core_dev *dev)
{
int err;
@@ -1005,7 +981,6 @@ static int mlx5_init_once(struct mlx5_core_dev *dev)
if (IS_ERR(dev->priv.devc))
mlx5_core_warn(dev, "failed to register devcom device %ld\n",
PTR_ERR(dev->priv.devc));
mlx5_register_hca_devcom_comp(dev);
err = mlx5_query_board_id(dev);
if (err) {
@@ -1143,7 +1118,6 @@ static int mlx5_init_once(struct mlx5_core_dev *dev)
err_irq_cleanup:
mlx5_irq_table_cleanup(dev);
err_devcom:
mlx5_unregister_hca_devcom_comp(dev);
mlx5_devcom_unregister_device(dev->priv.devc);
return err;
@@ -1174,7 +1148,6 @@ static void mlx5_cleanup_once(struct mlx5_core_dev *dev)
mlx5_events_cleanup(dev);
mlx5_eq_table_cleanup(dev);
mlx5_irq_table_cleanup(dev);
mlx5_unregister_hca_devcom_comp(dev);
mlx5_devcom_unregister_device(dev->priv.devc);
}