From 4383cfcc65e7879e1858da56954dae9fc20dfae9 Mon Sep 17 00:00:00 2001 From: Michael Guralnik Date: Sun, 27 Oct 2019 14:34:11 +0200 Subject: [PATCH] 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 Acked-by: Jiri Pirko Signed-off-by: Saeed Mahameed --- .../net/ethernet/mellanox/mlx5/core/devlink.c | 20 +++++++++++++++++++ .../net/ethernet/mellanox/mlx5/core/main.c | 4 ++-- .../ethernet/mellanox/mlx5/core/mlx5_core.h | 3 +++ 3 files changed, 25 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c index b2c26388edb1..ac108f1e5bd6 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c @@ -85,6 +85,22 @@ mlx5_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req, 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 = { #ifdef CONFIG_MLX5_ESWITCH .eswitch_mode_set = mlx5_devlink_eswitch_mode_set, @@ -96,6 +112,8 @@ static const struct devlink_ops mlx5_devlink_ops = { #endif .flash_update = mlx5_devlink_flash_update, .info_get = mlx5_devlink_info_get, + .reload_down = mlx5_devlink_reload_down, + .reload_up = mlx5_devlink_reload_up, }; struct devlink *mlx5_devlink_alloc(void) @@ -235,6 +253,7 @@ int mlx5_devlink_register(struct devlink *devlink, struct device *dev) goto params_reg_err; mlx5_devlink_set_params_init_values(devlink); devlink_params_publish(devlink); + devlink_reload_enable(devlink); return 0; params_reg_err: @@ -244,6 +263,7 @@ params_reg_err: void mlx5_devlink_unregister(struct devlink *devlink) { + devlink_reload_disable(devlink); devlink_params_unregister(devlink, mlx5_devlink_params, ARRAY_SIZE(mlx5_devlink_params)); devlink_unregister(devlink); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index c9a091d3226c..31fbfd6e8bb9 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -1168,7 +1168,7 @@ static void mlx5_unload(struct mlx5_core_dev *dev) 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; @@ -1226,7 +1226,7 @@ function_teardown: 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) { mlx5_unregister_device(dev); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h index b100489dc85c..da67b28d6e23 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h @@ -243,4 +243,7 @@ enum { u8 mlx5_get_nic_state(struct mlx5_core_dev *dev); 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__ */