From: Leon Romanovsky <leon@kernel.org>
To: "David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>
Cc: Leon Romanovsky <leonro@nvidia.com>,
Ido Schimmel <idosch@nvidia.com>, Ingo Molnar <mingo@redhat.com>,
Jiri Pirko <jiri@nvidia.com>,
linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org,
mlxsw@nvidia.com, Moshe Shemesh <moshe@nvidia.com>,
netdev@vger.kernel.org, Saeed Mahameed <saeedm@nvidia.com>,
Salil Mehta <salil.mehta@huawei.com>,
Shay Drory <shayd@nvidia.com>,
Steven Rostedt <rostedt@goodmis.org>,
Tariq Toukan <tariqt@nvidia.com>,
Yisen Zhuang <yisen.zhuang@huawei.com>
Subject: [PATCH net-next v2 5/5] devlink: Delete reload enable/disable interface
Date: Sun, 3 Oct 2021 21:12:06 +0300 [thread overview]
Message-ID: <06ebba9e115d421118b16ac4efda61c2e08f4d50.1633284302.git.leonro@nvidia.com> (raw)
In-Reply-To: <cover.1633284302.git.leonro@nvidia.com>
From: Leon Romanovsky <leonro@nvidia.com>
After changes to allow dynamically set the reload_up/_down callbacks,
we ensure that properly supported devlink ops are not accessible before
devlink_register, which is last command in the initialization sequence.
It makes devlink_reload_enable/_disable not relevant anymore and can be
safely deleted.
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
.../hisilicon/hns3/hns3pf/hclge_devlink.c | 3 --
.../hisilicon/hns3/hns3vf/hclgevf_devlink.c | 3 --
drivers/net/ethernet/mellanox/mlx4/main.c | 2 -
.../net/ethernet/mellanox/mlx5/core/main.c | 3 --
.../mellanox/mlx5/core/sf/dev/driver.c | 5 +--
drivers/net/ethernet/mellanox/mlxsw/core.c | 10 ++---
drivers/net/netdevsim/dev.c | 3 --
include/net/devlink.h | 2 -
net/core/devlink.c | 43 +------------------
9 files changed, 5 insertions(+), 69 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c
index 59b0ae7d59e0..c394c393421e 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c
@@ -120,7 +120,6 @@ int hclge_devlink_init(struct hclge_dev *hdev)
hdev->devlink = devlink;
devlink_register(devlink);
- devlink_reload_enable(devlink);
return 0;
}
@@ -128,8 +127,6 @@ 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 d60cc9426f70..d67c151e024b 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c
@@ -122,7 +122,6 @@ int hclgevf_devlink_init(struct hclgevf_dev *hdev)
hdev->devlink = devlink;
devlink_register(devlink);
- devlink_reload_enable(devlink);
return 0;
}
@@ -130,8 +129,6 @@ 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 9541f3a920c8..8b410800f049 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -4026,7 +4026,6 @@ static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
pci_save_state(pdev);
devlink_register(devlink);
- devlink_reload_enable(devlink);
return 0;
err_params_unregister:
@@ -4135,7 +4134,6 @@ 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 @@ static int mlx5_sf_dev_probe(struct auxiliary_device *adev, const struct auxilia
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 9e831e8b607a..895b3ba88e45 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.c
@@ -2007,11 +2007,8 @@ __mlxsw_core_bus_device_register(const struct mlxsw_bus_info *mlxsw_bus_info,
goto err_driver_init;
}
- if (!reload) {
+ if (!reload)
devlink_register(devlink);
- devlink_reload_enable(devlink);
- }
-
return 0;
err_driver_init:
@@ -2075,10 +2072,9 @@ 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 cb6645012a30..09e48fb232a9 100644
--- a/drivers/net/netdevsim/dev.c
+++ b/drivers/net/netdevsim/dev.c
@@ -1512,7 +1512,6 @@ int nsim_dev_probe(struct nsim_bus_dev *nsim_bus_dev)
nsim_dev->esw_mode = DEVLINK_ESWITCH_MODE_LEGACY;
devlink_register(devlink);
- devlink_reload_enable(devlink);
return 0;
err_psample_exit:
@@ -1566,9 +1565,7 @@ 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);
diff --git a/include/net/devlink.h b/include/net/devlink.h
index 320146d95fb8..23355fd92553 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -1523,8 +1523,6 @@ static inline struct devlink *devlink_alloc(const struct devlink_ops *ops,
void devlink_set_ops(struct devlink *devlink, const struct devlink_ops *ops);
void devlink_register(struct devlink *devlink);
void devlink_unregister(struct devlink *devlink);
-void devlink_reload_enable(struct devlink *devlink);
-void devlink_reload_disable(struct devlink *devlink);
void devlink_free(struct devlink *devlink);
int devlink_port_register(struct devlink *devlink,
struct devlink_port *devlink_port,
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 25c2aa2b35cd..b45bdba9775d 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -62,8 +62,7 @@ struct devlink {
* port, sb, dpipe, resource, params, region, traps and more.
*/
struct mutex lock;
- u8 reload_failed:1,
- reload_enabled:1;
+ u8 reload_failed:1;
refcount_t refcount;
struct completion comp;
char priv[0] __aligned(NETDEV_ALIGN);
@@ -4033,9 +4032,6 @@ static int devlink_reload(struct devlink *devlink, struct net *dest_net,
struct net *curr_net;
int err;
- if (!devlink->reload_enabled)
- return -EOPNOTSUPP;
-
memcpy(remote_reload_stats, devlink->stats.remote_reload_stats,
sizeof(remote_reload_stats));
@@ -9245,49 +9241,12 @@ void devlink_unregister(struct devlink *devlink)
wait_for_completion(&devlink->comp);
mutex_lock(&devlink_mutex);
- WARN_ON(devlink_reload_supported(&devlink->ops) &&
- devlink->reload_enabled);
devlink_notify_unregister(devlink);
xa_clear_mark(&devlinks, devlink->index, DEVLINK_REGISTERED);
mutex_unlock(&devlink_mutex);
}
EXPORT_SYMBOL_GPL(devlink_unregister);
-/**
- * devlink_reload_enable - Enable reload of devlink instance
- *
- * @devlink: devlink
- *
- * Should be called at end of device initialization
- * process when reload operation is supported.
- */
-void devlink_reload_enable(struct devlink *devlink)
-{
- mutex_lock(&devlink_mutex);
- devlink->reload_enabled = true;
- mutex_unlock(&devlink_mutex);
-}
-EXPORT_SYMBOL_GPL(devlink_reload_enable);
-
-/**
- * devlink_reload_disable - Disable reload of devlink instance
- *
- * @devlink: devlink
- *
- * Should be called at the beginning of device cleanup
- * process when reload operation is supported.
- */
-void devlink_reload_disable(struct devlink *devlink)
-{
- mutex_lock(&devlink_mutex);
- /* Mutex is taken which ensures that no reload operation is in
- * progress while setting up forbidded flag.
- */
- devlink->reload_enabled = false;
- mutex_unlock(&devlink_mutex);
-}
-EXPORT_SYMBOL_GPL(devlink_reload_disable);
-
/**
* devlink_free - Free devlink instance resources
*
--
2.31.1
next prev parent reply other threads:[~2021-10-03 18:12 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-03 18:12 [PATCH net-next v2 0/5] devlink reload simplification Leon Romanovsky
2021-10-03 18:12 ` [PATCH net-next v2 1/5] devlink: Reduce struct devlink exposure Leon Romanovsky
2021-10-04 23:38 ` Jakub Kicinski
2021-10-05 6:13 ` Leon Romanovsky
2021-10-03 18:12 ` [PATCH net-next v2 2/5] devlink: Annotate devlink API calls Leon Romanovsky
2021-10-03 18:12 ` [PATCH net-next v2 3/5] devlink: Allow set specific ops callbacks dynamically Leon Romanovsky
2021-10-04 23:44 ` Jakub Kicinski
2021-10-05 7:32 ` Leon Romanovsky
2021-10-05 18:32 ` Jakub Kicinski
2021-10-05 19:15 ` Leon Romanovsky
2021-10-06 0:39 ` Jakub Kicinski
2021-10-06 3:37 ` Leon Romanovsky
2021-10-06 13:35 ` Jakub Kicinski
2021-10-06 14:48 ` Leon Romanovsky
2021-10-03 18:12 ` [PATCH net-next v2 4/5] net/mlx5: Register separate reload devlink ops for multiport device Leon Romanovsky
2021-10-03 18:12 ` Leon Romanovsky [this message]
2021-10-04 14:19 ` [PATCH net-next v2 5/5] devlink: Delete reload enable/disable interface Ido Schimmel
2021-10-04 15:45 ` Leon Romanovsky
2021-10-04 16:54 ` Ido Schimmel
2021-10-04 19:02 ` Leon Romanovsky
2021-10-05 6:10 ` Ido Schimmel
2021-10-05 7:40 ` Leon Romanovsky
2021-10-05 8:18 ` Ido Schimmel
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