From 82465bec3e9713c395b0a02f5aaf7949443cb877 Mon Sep 17 00:00:00 2001 From: Leon Romanovsky Date: Tue, 12 Oct 2021 16:15:26 +0300 Subject: devlink: Delete reload enable/disable interface Commit a0c76345e3d3 ("devlink: disallow reload operation during device cleanup") added devlink_reload_{enable,disable}() APIs to prevent reload operation from racing with device probe/dismantle. After recent changes to move devlink_register() to the end of device probe and devlink_unregister() to the beginning of device dismantle, these races can no longer happen. Reload operations will be denied if the devlink instance is unregistered and devlink_unregister() will block until all in-flight operations are done. Therefore, remove these devlink_reload_{enable,disable}() APIs. Signed-off-by: Leon Romanovsky Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c | 3 --- drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c | 3 --- drivers/net/ethernet/mellanox/mlx4/main.c | 2 -- drivers/net/ethernet/mellanox/mlx5/core/main.c | 3 --- drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c | 5 +---- drivers/net/ethernet/mellanox/mlxsw/core.c | 7 ++----- drivers/net/netdevsim/dev.c | 3 --- 7 files changed, 3 insertions(+), 23 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c index 438fe62fea4d..4c441e6a5082 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c @@ -121,7 +121,6 @@ int hclge_devlink_init(struct hclge_dev *hdev) devlink_set_features(devlink, DEVLINK_F_RELOAD); devlink_register(devlink); - devlink_reload_enable(devlink); return 0; } @@ -129,8 +128,6 @@ void hclge_devlink_uninit(struct hclge_dev *hdev) { struct devlink *devlink = hdev->devlink; - devlink_reload_disable(devlink); - devlink_unregister(devlink); devlink_free(devlink); diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c index 519f4108422e..fdc19868b818 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c @@ -123,7 +123,6 @@ int hclgevf_devlink_init(struct hclgevf_dev *hdev) devlink_set_features(devlink, DEVLINK_F_RELOAD); devlink_register(devlink); - devlink_reload_enable(devlink); return 0; } @@ -131,8 +130,6 @@ void hclgevf_devlink_uninit(struct hclgevf_dev *hdev) { struct devlink *devlink = hdev->devlink; - devlink_reload_disable(devlink); - devlink_unregister(devlink); devlink_free(devlink); diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 05e850a40b36..b187c210d4d6 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -4027,7 +4027,6 @@ static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id) pci_save_state(pdev); devlink_set_features(devlink, DEVLINK_F_RELOAD); devlink_register(devlink); - devlink_reload_enable(devlink); return 0; err_params_unregister: @@ -4136,7 +4135,6 @@ static void mlx4_remove_one(struct pci_dev *pdev) struct devlink *devlink = priv_to_devlink(priv); int active_vfs = 0; - devlink_reload_disable(devlink); devlink_unregister(devlink); if (mlx4_is_slave(dev)) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index 5893fdd5aedb..65313448a47c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -1538,8 +1538,6 @@ static int probe_one(struct pci_dev *pdev, const struct pci_device_id *id) pci_save_state(pdev); devlink_register(devlink); - if (!mlx5_core_is_mp_slave(dev)) - devlink_reload_enable(devlink); return 0; err_init_one: @@ -1559,7 +1557,6 @@ static void remove_one(struct pci_dev *pdev) struct mlx5_core_dev *dev = pci_get_drvdata(pdev); struct devlink *devlink = priv_to_devlink(dev); - devlink_reload_disable(devlink); devlink_unregister(devlink); mlx5_crdump_disable(dev); mlx5_drain_health_wq(dev); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c index 3cf272fa2164..7b4783ce213e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c @@ -47,7 +47,6 @@ static int mlx5_sf_dev_probe(struct auxiliary_device *adev, const struct auxilia goto init_one_err; } devlink_register(devlink); - devlink_reload_enable(devlink); return 0; init_one_err: @@ -62,10 +61,8 @@ mdev_err: static void mlx5_sf_dev_remove(struct auxiliary_device *adev) { struct mlx5_sf_dev *sf_dev = container_of(adev, struct mlx5_sf_dev, adev); - struct devlink *devlink; + struct devlink *devlink = priv_to_devlink(sf_dev->mdev); - devlink = priv_to_devlink(sf_dev->mdev); - devlink_reload_disable(devlink); devlink_unregister(devlink); mlx5_uninit_one(sf_dev->mdev); iounmap(sf_dev->mdev->iseg); diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c index 0f1567149a54..3fd3812b8f31 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/core.c +++ b/drivers/net/ethernet/mellanox/mlxsw/core.c @@ -2010,9 +2010,7 @@ __mlxsw_core_bus_device_register(const struct mlxsw_bus_info *mlxsw_bus_info, if (!reload) { devlink_set_features(devlink, DEVLINK_F_RELOAD); devlink_register(devlink); - devlink_reload_enable(devlink); } - return 0; err_driver_init: @@ -2076,10 +2074,9 @@ void mlxsw_core_bus_device_unregister(struct mlxsw_core *mlxsw_core, { struct devlink *devlink = priv_to_devlink(mlxsw_core); - if (!reload) { - devlink_reload_disable(devlink); + if (!reload) devlink_unregister(devlink); - } + if (devlink_is_reload_failed(devlink)) { if (!reload) /* Only the parts that were not de-initialized in the diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c index 520c019dbad5..9661aca35703 100644 --- a/drivers/net/netdevsim/dev.c +++ b/drivers/net/netdevsim/dev.c @@ -1513,7 +1513,6 @@ int nsim_dev_probe(struct nsim_bus_dev *nsim_bus_dev) nsim_dev->esw_mode = DEVLINK_ESWITCH_MODE_LEGACY; devlink_set_features(devlink, DEVLINK_F_RELOAD); devlink_register(devlink); - devlink_reload_enable(devlink); return 0; err_psample_exit: @@ -1567,9 +1566,7 @@ void nsim_dev_remove(struct nsim_bus_dev *nsim_bus_dev) struct nsim_dev *nsim_dev = dev_get_drvdata(&nsim_bus_dev->dev); struct devlink *devlink = priv_to_devlink(nsim_dev); - devlink_reload_disable(devlink); devlink_unregister(devlink); - nsim_dev_reload_destroy(nsim_dev); nsim_bpf_dev_exit(nsim_dev); -- cgit v1.2.3