diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/devlink.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/devlink.c | 112 |
1 files changed, 111 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c index a400f4430c28..381925c90d94 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c @@ -4,6 +4,7 @@ #include <devlink.h> #include "mlx5_core.h" +#include "fs_core.h" #include "eswitch.h" static int mlx5_devlink_flash_update(struct devlink *devlink, @@ -107,12 +108,121 @@ void mlx5_devlink_free(struct devlink *devlink) devlink_free(devlink); } +static int mlx5_devlink_fs_mode_validate(struct devlink *devlink, u32 id, + union devlink_param_value val, + struct netlink_ext_ack *extack) +{ + struct mlx5_core_dev *dev = devlink_priv(devlink); + char *value = val.vstr; + int err = 0; + + if (!strcmp(value, "dmfs")) { + return 0; + } else if (!strcmp(value, "smfs")) { + u8 eswitch_mode; + bool smfs_cap; + + eswitch_mode = mlx5_eswitch_mode(dev->priv.eswitch); + smfs_cap = mlx5_fs_dr_is_supported(dev); + + if (!smfs_cap) { + err = -EOPNOTSUPP; + NL_SET_ERR_MSG_MOD(extack, + "Software managed steering is not supported by current device"); + } + + else if (eswitch_mode == MLX5_ESWITCH_OFFLOADS) { + NL_SET_ERR_MSG_MOD(extack, + "Software managed steering is not supported when eswitch offloads enabled."); + err = -EOPNOTSUPP; + } + } else { + NL_SET_ERR_MSG_MOD(extack, + "Bad parameter: supported values are [\"dmfs\", \"smfs\"]"); + err = -EINVAL; + } + + return err; +} + +static int mlx5_devlink_fs_mode_set(struct devlink *devlink, u32 id, + struct devlink_param_gset_ctx *ctx) +{ + struct mlx5_core_dev *dev = devlink_priv(devlink); + enum mlx5_flow_steering_mode mode; + + if (!strcmp(ctx->val.vstr, "smfs")) + mode = MLX5_FLOW_STEERING_MODE_SMFS; + else + mode = MLX5_FLOW_STEERING_MODE_DMFS; + dev->priv.steering->mode = mode; + + return 0; +} + +static int mlx5_devlink_fs_mode_get(struct devlink *devlink, u32 id, + struct devlink_param_gset_ctx *ctx) +{ + struct mlx5_core_dev *dev = devlink_priv(devlink); + + if (dev->priv.steering->mode == MLX5_FLOW_STEERING_MODE_SMFS) + strcpy(ctx->val.vstr, "smfs"); + else + strcpy(ctx->val.vstr, "dmfs"); + return 0; +} + +enum mlx5_devlink_param_id { + MLX5_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, + MLX5_DEVLINK_PARAM_FLOW_STEERING_MODE, +}; + +static const struct devlink_param mlx5_devlink_params[] = { + DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_FLOW_STEERING_MODE, + "flow_steering_mode", DEVLINK_PARAM_TYPE_STRING, + BIT(DEVLINK_PARAM_CMODE_RUNTIME), + mlx5_devlink_fs_mode_get, mlx5_devlink_fs_mode_set, + mlx5_devlink_fs_mode_validate), +}; + +static void mlx5_devlink_set_params_init_values(struct devlink *devlink) +{ + struct mlx5_core_dev *dev = devlink_priv(devlink); + union devlink_param_value value; + + if (dev->priv.steering->mode == MLX5_FLOW_STEERING_MODE_DMFS) + strcpy(value.vstr, "dmfs"); + else + strcpy(value.vstr, "smfs"); + devlink_param_driverinit_value_set(devlink, + MLX5_DEVLINK_PARAM_FLOW_STEERING_MODE, + value); +} + int mlx5_devlink_register(struct devlink *devlink, struct device *dev) { - return devlink_register(devlink, dev); + int err; + + err = devlink_register(devlink, dev); + if (err) + return err; + + err = devlink_params_register(devlink, mlx5_devlink_params, + ARRAY_SIZE(mlx5_devlink_params)); + if (err) + goto params_reg_err; + mlx5_devlink_set_params_init_values(devlink); + devlink_params_publish(devlink); + return 0; + +params_reg_err: + devlink_unregister(devlink); + return err; } void mlx5_devlink_unregister(struct devlink *devlink) { + devlink_params_unregister(devlink, mlx5_devlink_params, + ARRAY_SIZE(mlx5_devlink_params)); devlink_unregister(devlink); } |