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net/mlx5: Add devlink reload 

Implement devlink reload for mlx5.

Usage example:
devlink dev reload pci/0000:06:00.0

Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Michael Guralnik 2019-10-27 14:34:11 +02:00 committed by Saeed Mahameed
parent 71c6eaebf0
commit 4383cfcc65
3 changed files with 25 additions and 2 deletions
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20
drivers/net/ethernet/mellanox/mlx5/core/devlink.c
View File

@ -85,6 +85,22 @@ mlx5_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
return 0; return 0;
} }
static int mlx5_devlink_reload_down(struct devlink *devlink, bool netns_change,
struct netlink_ext_ack *extack)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
return mlx5_unload_one(dev, false);
}
static int mlx5_devlink_reload_up(struct devlink *devlink,
struct netlink_ext_ack *extack)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
return mlx5_load_one(dev, false);
}
static const struct devlink_ops mlx5_devlink_ops = { static const struct devlink_ops mlx5_devlink_ops = {
#ifdef CONFIG_MLX5_ESWITCH #ifdef CONFIG_MLX5_ESWITCH
.eswitch_mode_set = mlx5_devlink_eswitch_mode_set, .eswitch_mode_set = mlx5_devlink_eswitch_mode_set,
@ -96,6 +112,8 @@ static const struct devlink_ops mlx5_devlink_ops = {
#endif #endif
.flash_update = mlx5_devlink_flash_update, .flash_update = mlx5_devlink_flash_update,
.info_get = mlx5_devlink_info_get, .info_get = mlx5_devlink_info_get,
.reload_down = mlx5_devlink_reload_down,
.reload_up = mlx5_devlink_reload_up,
}; };
struct devlink *mlx5_devlink_alloc(void) struct devlink *mlx5_devlink_alloc(void)
@ -235,6 +253,7 @@ int mlx5_devlink_register(struct devlink *devlink, struct device *dev)
goto params_reg_err; goto params_reg_err;
mlx5_devlink_set_params_init_values(devlink); mlx5_devlink_set_params_init_values(devlink);
devlink_params_publish(devlink); devlink_params_publish(devlink);
devlink_reload_enable(devlink);
return 0; return 0;
params_reg_err: params_reg_err:
@ -244,6 +263,7 @@ int mlx5_devlink_register(struct devlink *devlink, struct device *dev)
void mlx5_devlink_unregister(struct devlink *devlink) void mlx5_devlink_unregister(struct devlink *devlink)
{ {
devlink_reload_disable(devlink);
devlink_params_unregister(devlink, mlx5_devlink_params, devlink_params_unregister(devlink, mlx5_devlink_params,
ARRAY_SIZE(mlx5_devlink_params)); ARRAY_SIZE(mlx5_devlink_params));
devlink_unregister(devlink); devlink_unregister(devlink);

4
drivers/net/ethernet/mellanox/mlx5/core/main.c
View File

@ -1168,7 +1168,7 @@ static void mlx5_unload(struct mlx5_core_dev *dev)
mlx5_put_uars_page(dev, dev->priv.uar); mlx5_put_uars_page(dev, dev->priv.uar);
} }
static int mlx5_load_one(struct mlx5_core_dev *dev, bool boot) int mlx5_load_one(struct mlx5_core_dev *dev, bool boot)
{ {
int err = 0; int err = 0;
@ -1226,7 +1226,7 @@ static int mlx5_load_one(struct mlx5_core_dev *dev, bool boot)
return err; return err;
} }
static int mlx5_unload_one(struct mlx5_core_dev *dev, bool cleanup) int mlx5_unload_one(struct mlx5_core_dev *dev, bool cleanup)
{ {
if (cleanup) { if (cleanup) {
mlx5_unregister_device(dev); mlx5_unregister_device(dev);

3
drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
View File

@ -243,4 +243,7 @@ enum {
u8 mlx5_get_nic_state(struct mlx5_core_dev *dev); u8 mlx5_get_nic_state(struct mlx5_core_dev *dev);
void mlx5_set_nic_state(struct mlx5_core_dev *dev, u8 state); void mlx5_set_nic_state(struct mlx5_core_dev *dev, u8 state);
int mlx5_unload_one(struct mlx5_core_dev *dev, bool cleanup);
int mlx5_load_one(struct mlx5_core_dev *dev, bool boot);
#endif /* __MLX5_CORE_H__ */ #endif /* __MLX5_CORE_H__ */