diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c index 9c893d7d273e..d004957328f9 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c @@ -263,7 +263,7 @@ static int esw_create_legacy_fdb_table(struct mlx5_eswitch *esw) esw_debug(dev, "Create FDB log_max_size(%d)\n", MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size)); - root_ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_FDB); + root_ns = mlx5_get_fdb_sub_ns(dev, 0); if (!root_ns) { esw_warn(dev, "Failed to get FDB flow namespace\n"); return -EOPNOTSUPP; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h index c1b627577003..1698a322a7c4 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h @@ -59,6 +59,9 @@ #define mlx5_esw_has_fwd_fdb(dev) \ MLX5_CAP_ESW_FLOWTABLE(dev, fdb_multi_path_to_table) +#define FDB_MAX_CHAIN 3 +#define FDB_MAX_PRIO 16 + struct vport_ingress { struct mlx5_flow_table *acl; struct mlx5_flow_group *allow_untagged_spoofchk_grp; @@ -319,6 +322,10 @@ static inline void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw) {} static inline void mlx5_eswitch_vport_event(struct mlx5_eswitch *esw, struct mlx5_eqe *eqe) {} static inline int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs, int mode) { return 0; } static inline void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw) {} + +#define FDB_MAX_CHAIN 1 +#define FDB_MAX_PRIO 1 + #endif /* CONFIG_MLX5_ESWITCH */ #endif /* __MLX5_ESWITCH_H__ */ diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c index cdcbf9d0ae6c..7eb6d58733ac 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c @@ -40,6 +40,7 @@ #include "diag/fs_tracepoint.h" #include "accel/ipsec.h" #include "fpga/ipsec.h" +#include "eswitch.h" #define INIT_TREE_NODE_ARRAY_SIZE(...) (sizeof((struct init_tree_node[]){__VA_ARGS__}) /\ sizeof(struct init_tree_node)) @@ -713,7 +714,7 @@ static struct mlx5_flow_table *find_closest_ft_recursive(struct fs_node *root, struct fs_node *iter = list_entry(start, struct fs_node, list); struct mlx5_flow_table *ft = NULL; - if (!root) + if (!root || root->type == FS_TYPE_PRIO_CHAINS) return NULL; list_for_each_advance_continue(iter, &root->children, reverse) { @@ -1973,6 +1974,18 @@ void mlx5_destroy_flow_group(struct mlx5_flow_group *fg) fg->id); } +struct mlx5_flow_namespace *mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, + int n) +{ + struct mlx5_flow_steering *steering = dev->priv.steering; + + if (!steering || !steering->fdb_sub_ns) + return NULL; + + return steering->fdb_sub_ns[n]; +} +EXPORT_SYMBOL(mlx5_get_fdb_sub_ns); + struct mlx5_flow_namespace *mlx5_get_flow_namespace(struct mlx5_core_dev *dev, enum mlx5_flow_namespace_type type) { @@ -2051,8 +2064,10 @@ struct mlx5_flow_namespace *mlx5_get_flow_vport_acl_namespace(struct mlx5_core_d } } -static struct fs_prio *fs_create_prio(struct mlx5_flow_namespace *ns, - unsigned int prio, int num_levels) +static struct fs_prio *_fs_create_prio(struct mlx5_flow_namespace *ns, + unsigned int prio, + int num_levels, + enum fs_node_type type) { struct fs_prio *fs_prio; @@ -2060,7 +2075,7 @@ static struct fs_prio *fs_create_prio(struct mlx5_flow_namespace *ns, if (!fs_prio) return ERR_PTR(-ENOMEM); - fs_prio->node.type = FS_TYPE_PRIO; + fs_prio->node.type = type; tree_init_node(&fs_prio->node, NULL, del_sw_prio); tree_add_node(&fs_prio->node, &ns->node); fs_prio->num_levels = num_levels; @@ -2070,6 +2085,19 @@ static struct fs_prio *fs_create_prio(struct mlx5_flow_namespace *ns, return fs_prio; } +static struct fs_prio *fs_create_prio_chained(struct mlx5_flow_namespace *ns, + unsigned int prio, + int num_levels) +{ + return _fs_create_prio(ns, prio, num_levels, FS_TYPE_PRIO_CHAINS); +} + +static struct fs_prio *fs_create_prio(struct mlx5_flow_namespace *ns, + unsigned int prio, int num_levels) +{ + return _fs_create_prio(ns, prio, num_levels, FS_TYPE_PRIO); +} + static struct mlx5_flow_namespace *fs_init_namespace(struct mlx5_flow_namespace *ns) { @@ -2374,6 +2402,9 @@ void mlx5_cleanup_fs(struct mlx5_core_dev *dev) cleanup_egress_acls_root_ns(dev); cleanup_ingress_acls_root_ns(dev); cleanup_root_ns(steering->fdb_root_ns); + steering->fdb_root_ns = NULL; + kfree(steering->fdb_sub_ns); + steering->fdb_sub_ns = NULL; cleanup_root_ns(steering->sniffer_rx_root_ns); cleanup_root_ns(steering->sniffer_tx_root_ns); cleanup_root_ns(steering->egress_root_ns); @@ -2419,27 +2450,64 @@ static int init_sniffer_rx_root_ns(struct mlx5_flow_steering *steering) static int init_fdb_root_ns(struct mlx5_flow_steering *steering) { - struct fs_prio *prio; + struct mlx5_flow_namespace *ns; + struct fs_prio *maj_prio; + struct fs_prio *min_prio; + int levels; + int chain; + int prio; + int err; steering->fdb_root_ns = create_root_ns(steering, FS_FT_FDB); if (!steering->fdb_root_ns) return -ENOMEM; - prio = fs_create_prio(&steering->fdb_root_ns->ns, 0, 2); - if (IS_ERR(prio)) - goto out_err; + steering->fdb_sub_ns = kzalloc(sizeof(steering->fdb_sub_ns) * + FDB_MAX_CHAIN + 1, GFP_KERNEL); + if (!steering->fdb_sub_ns) + return -ENOMEM; - prio = fs_create_prio(&steering->fdb_root_ns->ns, 1, 1); - if (IS_ERR(prio)) + levels = 2 * FDB_MAX_PRIO * (FDB_MAX_CHAIN + 1); + maj_prio = fs_create_prio_chained(&steering->fdb_root_ns->ns, 0, + levels); + if (IS_ERR(maj_prio)) { + err = PTR_ERR(maj_prio); goto out_err; + } + + for (chain = 0; chain <= FDB_MAX_CHAIN; chain++) { + ns = fs_create_namespace(maj_prio); + if (IS_ERR(ns)) { + err = PTR_ERR(ns); + goto out_err; + } + + for (prio = 0; prio < FDB_MAX_PRIO * (chain + 1); prio++) { + min_prio = fs_create_prio(ns, prio, 2); + if (IS_ERR(min_prio)) { + err = PTR_ERR(min_prio); + goto out_err; + } + } + + steering->fdb_sub_ns[chain] = ns; + } + + maj_prio = fs_create_prio(&steering->fdb_root_ns->ns, 1, 1); + if (IS_ERR(maj_prio)) { + err = PTR_ERR(maj_prio); + goto out_err; + } set_prio_attrs(steering->fdb_root_ns); return 0; out_err: cleanup_root_ns(steering->fdb_root_ns); + kfree(steering->fdb_sub_ns); + steering->fdb_sub_ns = NULL; steering->fdb_root_ns = NULL; - return PTR_ERR(prio); + return err; } static int init_egress_acl_root_ns(struct mlx5_flow_steering *steering, int vport) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h index a06f83c0c2b6..b51ad217da32 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h @@ -38,9 +38,21 @@ #include #include +/* FS_TYPE_PRIO_CHAINS is a PRIO that will have namespaces only, + * and those are in parallel to one another when going over them to connect + * a new flow table. Meaning the last flow table in a TYPE_PRIO prio in one + * parallel namespace will not automatically connect to the first flow table + * found in any prio in any next namespace, but skip the entire containing + * TYPE_PRIO_CHAINS prio. + * + * This is used to implement tc chains, each chain of prios is a different + * namespace inside a containing TYPE_PRIO_CHAINS prio. + */ + enum fs_node_type { FS_TYPE_NAMESPACE, FS_TYPE_PRIO, + FS_TYPE_PRIO_CHAINS, FS_TYPE_FLOW_TABLE, FS_TYPE_FLOW_GROUP, FS_TYPE_FLOW_ENTRY, @@ -73,6 +85,7 @@ struct mlx5_flow_steering { struct kmem_cache *ftes_cache; struct mlx5_flow_root_namespace *root_ns; struct mlx5_flow_root_namespace *fdb_root_ns; + struct mlx5_flow_namespace **fdb_sub_ns; struct mlx5_flow_root_namespace **esw_egress_root_ns; struct mlx5_flow_root_namespace **esw_ingress_root_ns; struct mlx5_flow_root_namespace *sniffer_tx_root_ns; diff --git a/include/linux/mlx5/fs.h b/include/linux/mlx5/fs.h index a5fc62184195..f8d00872c7d3 100644 --- a/include/linux/mlx5/fs.h +++ b/include/linux/mlx5/fs.h @@ -101,6 +101,8 @@ struct mlx5_flow_destination { }; }; +struct mlx5_flow_namespace * +mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n); struct mlx5_flow_namespace * mlx5_get_flow_namespace(struct mlx5_core_dev *dev, enum mlx5_flow_namespace_type type);