diff --git a/Documentation/networking/devlink/mlx5.rst b/Documentation/networking/devlink/mlx5.rst index 629a6e69c036..4e4b97f7971a 100644 --- a/Documentation/networking/devlink/mlx5.rst +++ b/Documentation/networking/devlink/mlx5.rst @@ -37,6 +37,12 @@ parameters. * ``smfs`` Software managed flow steering. In SMFS mode, the HW steering entities are created and manage through the driver without firmware intervention. + * - ``fdb_large_groups`` + - u32 + - driverinit + - Control the number of large groups (size > 1) in the FDB table. + + * The default value is 15, and the range is between 1 and 1024. The ``mlx5`` driver supports reloading via ``DEVLINK_CMD_RELOAD`` diff --git a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c index ca7f08513174..b7bb81b8c49b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c @@ -190,11 +190,6 @@ static int mlx5_devlink_fs_mode_get(struct devlink *devlink, u32 id, return 0; } -enum mlx5_devlink_param_id { - MLX5_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, - MLX5_DEVLINK_PARAM_ID_FLOW_STEERING_MODE, -}; - static int mlx5_devlink_enable_roce_validate(struct devlink *devlink, u32 id, union devlink_param_value val, struct netlink_ext_ack *extack) @@ -210,6 +205,23 @@ static int mlx5_devlink_enable_roce_validate(struct devlink *devlink, u32 id, return 0; } +#ifdef CONFIG_MLX5_ESWITCH +static int mlx5_devlink_large_group_num_validate(struct devlink *devlink, u32 id, + union devlink_param_value val, + struct netlink_ext_ack *extack) +{ + int group_num = val.vu32; + + if (group_num < 1 || group_num > 1024) { + NL_SET_ERR_MSG_MOD(extack, + "Unsupported group number, supported range is 1-1024"); + return -EOPNOTSUPP; + } + + return 0; +} +#endif + static const struct devlink_param mlx5_devlink_params[] = { DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_ID_FLOW_STEERING_MODE, "flow_steering_mode", DEVLINK_PARAM_TYPE_STRING, @@ -218,6 +230,13 @@ static const struct devlink_param mlx5_devlink_params[] = { mlx5_devlink_fs_mode_validate), DEVLINK_PARAM_GENERIC(ENABLE_ROCE, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), NULL, NULL, mlx5_devlink_enable_roce_validate), +#ifdef CONFIG_MLX5_ESWITCH + DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_ID_ESW_LARGE_GROUP_NUM, + "fdb_large_groups", DEVLINK_PARAM_TYPE_U32, + BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), + NULL, NULL, + mlx5_devlink_large_group_num_validate), +#endif }; static void mlx5_devlink_set_params_init_values(struct devlink *devlink) @@ -237,6 +256,13 @@ static void mlx5_devlink_set_params_init_values(struct devlink *devlink) devlink_param_driverinit_value_set(devlink, DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE, value); + +#ifdef CONFIG_MLX5_ESWITCH + value.vu32 = ESW_OFFLOADS_DEFAULT_NUM_GROUPS; + devlink_param_driverinit_value_set(devlink, + MLX5_DEVLINK_PARAM_ID_ESW_LARGE_GROUP_NUM, + value); +#endif } int mlx5_devlink_register(struct devlink *devlink, struct device *dev) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/devlink.h b/drivers/net/ethernet/mellanox/mlx5/core/devlink.h index d0ba03774ddf..f0de327a59be 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/devlink.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/devlink.h @@ -6,6 +6,12 @@ #include +enum mlx5_devlink_param_id { + MLX5_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, + MLX5_DEVLINK_PARAM_ID_FLOW_STEERING_MODE, + MLX5_DEVLINK_PARAM_ID_ESW_LARGE_GROUP_NUM, +}; + struct devlink *mlx5_devlink_alloc(void); void mlx5_devlink_free(struct devlink *devlink); int mlx5_devlink_register(struct devlink *devlink, struct device *dev); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c index e49acd0c5da5..25640864c375 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c @@ -39,6 +39,7 @@ #include "lib/eq.h" #include "eswitch.h" #include "fs_core.h" +#include "devlink.h" #include "ecpf.h" enum { @@ -2006,6 +2007,25 @@ void mlx5_eswitch_disable_pf_vf_vports(struct mlx5_eswitch *esw) esw_disable_vport(esw, vport); } +static void mlx5_eswitch_get_devlink_param(struct mlx5_eswitch *esw) +{ + struct devlink *devlink = priv_to_devlink(esw->dev); + union devlink_param_value val; + int err; + + err = devlink_param_driverinit_value_get(devlink, + MLX5_DEVLINK_PARAM_ID_ESW_LARGE_GROUP_NUM, + &val); + if (!err) { + esw->params.large_group_num = val.vu32; + } else { + esw_warn(esw->dev, + "Devlink can't get param fdb_large_groups, uses default (%d).\n", + ESW_OFFLOADS_DEFAULT_NUM_GROUPS); + esw->params.large_group_num = ESW_OFFLOADS_DEFAULT_NUM_GROUPS; + } +} + int mlx5_eswitch_enable(struct mlx5_eswitch *esw, int mode) { int err; @@ -2022,6 +2042,8 @@ int mlx5_eswitch_enable(struct mlx5_eswitch *esw, int mode) if (!MLX5_CAP_ESW_EGRESS_ACL(esw->dev, ft_support)) esw_warn(esw->dev, "engress ACL is not supported by FW\n"); + mlx5_eswitch_get_devlink_param(esw); + esw_create_tsar(esw); esw->mode = mode; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h index 479d2458f872..d010657ce601 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h @@ -49,13 +49,14 @@ /* The index of the last real chain (FT) + 1 as chain zero is valid as well */ #define FDB_NUM_CHAINS (FDB_FT_CHAIN + 1) -#define ESW_OFFLOADS_NUM_GROUPS 4 #define FDB_TC_MAX_PRIO 16 #define FDB_TC_LEVELS_PER_PRIO 2 #ifdef CONFIG_MLX5_ESWITCH +#define ESW_OFFLOADS_DEFAULT_NUM_GROUPS 15 + #define MLX5_MAX_UC_PER_VPORT(dev) \ (1 << MLX5_CAP_GEN(dev, log_max_current_uc_list)) @@ -262,6 +263,9 @@ struct mlx5_eswitch { u16 manager_vport; u16 first_host_vport; struct mlx5_esw_functions esw_funcs; + struct { + u32 large_group_num; + } params; }; void esw_offloads_disable(struct mlx5_eswitch *esw); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c index 9a72c719d8f5..4b5b6618dff4 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c @@ -71,13 +71,15 @@ struct mlx5_vport_table { struct mlx5_vport_key key; }; +#define MLX5_ESW_VPORT_TBL_NUM_GROUPS 4 + static struct mlx5_flow_table * esw_vport_tbl_create(struct mlx5_eswitch *esw, struct mlx5_flow_namespace *ns) { struct mlx5_flow_table_attr ft_attr = {}; struct mlx5_flow_table *fdb; - ft_attr.autogroup.max_num_groups = ESW_OFFLOADS_NUM_GROUPS; + ft_attr.autogroup.max_num_groups = MLX5_ESW_VPORT_TBL_NUM_GROUPS; ft_attr.max_fte = MLX5_ESW_VPORT_TABLE_SIZE; ft_attr.prio = FDB_PER_VPORT; fdb = mlx5_create_auto_grouped_flow_table(ns, &ft_attr); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_chains.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_chains.c index 60121f2ee6c5..d41e4f002b84 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_chains.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_chains.c @@ -237,7 +237,7 @@ mlx5_esw_chains_create_fdb_table(struct mlx5_eswitch *esw, } ft_attr.autogroup.num_reserved_entries = 2; - ft_attr.autogroup.max_num_groups = ESW_OFFLOADS_NUM_GROUPS; + ft_attr.autogroup.max_num_groups = esw->params.large_group_num; fdb = mlx5_create_auto_grouped_flow_table(ns, &ft_attr); if (IS_ERR(fdb)) { esw_warn(esw->dev, @@ -640,7 +640,7 @@ mlx5_esw_chains_init(struct mlx5_eswitch *esw) esw_debug(dev, "Init esw offloads chains, max counters(%d), groups(%d), max flow table size(%d)\n", - max_flow_counter, ESW_OFFLOADS_NUM_GROUPS, fdb_max); + max_flow_counter, esw->params.large_group_num, fdb_max); mlx5_esw_chains_init_sz_pool(esw);