diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/fs_core.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 129 |
1 files changed, 94 insertions, 35 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c index 0246f5cdd355..2c1dcb5084ab 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c @@ -2400,9 +2400,17 @@ static void set_prio_attrs_in_prio(struct fs_prio *prio, int acc_level) int acc_level_ns = acc_level; prio->start_level = acc_level; - fs_for_each_ns(ns, prio) + fs_for_each_ns(ns, prio) { /* This updates start_level and num_levels of ns's priority descendants */ acc_level_ns = set_prio_attrs_in_ns(ns, acc_level); + + /* If this a prio with chains, and we can jump from one chain + * (namepsace) to another, so we accumulate the levels + */ + if (prio->node.type == FS_TYPE_PRIO_CHAINS) + acc_level = acc_level_ns; + } + if (!prio->num_levels) prio->num_levels = acc_level_ns - prio->start_level; WARN_ON(prio->num_levels < acc_level_ns - prio->start_level); @@ -2591,58 +2599,109 @@ out_err: steering->rdma_rx_root_ns = NULL; return err; } -static int init_fdb_root_ns(struct mlx5_flow_steering *steering) + +/* FT and tc chains are stored in the same array so we can re-use the + * mlx5_get_fdb_sub_ns() and tc api for FT chains. + * When creating a new ns for each chain store it in the first available slot. + * Assume tc chains are created and stored first and only then the FT chain. + */ +static void store_fdb_sub_ns_prio_chain(struct mlx5_flow_steering *steering, + struct mlx5_flow_namespace *ns) +{ + int chain = 0; + + while (steering->fdb_sub_ns[chain]) + ++chain; + + steering->fdb_sub_ns[chain] = ns; +} + +static int create_fdb_sub_ns_prio_chain(struct mlx5_flow_steering *steering, + struct fs_prio *maj_prio) { struct mlx5_flow_namespace *ns; - struct fs_prio *maj_prio; struct fs_prio *min_prio; + int prio; + + ns = fs_create_namespace(maj_prio, MLX5_FLOW_TABLE_MISS_ACTION_DEF); + if (IS_ERR(ns)) + return PTR_ERR(ns); + + for (prio = 0; prio < FDB_TC_MAX_PRIO; prio++) { + min_prio = fs_create_prio(ns, prio, FDB_TC_LEVELS_PER_PRIO); + if (IS_ERR(min_prio)) + return PTR_ERR(min_prio); + } + + store_fdb_sub_ns_prio_chain(steering, ns); + + return 0; +} + +static int create_fdb_chains(struct mlx5_flow_steering *steering, + int fs_prio, + int chains) +{ + struct fs_prio *maj_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; + levels = FDB_TC_LEVELS_PER_PRIO * FDB_TC_MAX_PRIO * chains; + maj_prio = fs_create_prio_chained(&steering->fdb_root_ns->ns, + fs_prio, + levels); + if (IS_ERR(maj_prio)) + return PTR_ERR(maj_prio); + + for (chain = 0; chain < chains; chain++) { + err = create_fdb_sub_ns_prio_chain(steering, maj_prio); + if (err) + return err; + } + + return 0; +} - steering->fdb_sub_ns = kzalloc(sizeof(steering->fdb_sub_ns) * - (FDB_MAX_CHAIN + 1), GFP_KERNEL); +static int create_fdb_fast_path(struct mlx5_flow_steering *steering) +{ + int err; + + steering->fdb_sub_ns = kcalloc(FDB_NUM_CHAINS, + sizeof(*steering->fdb_sub_ns), + GFP_KERNEL); if (!steering->fdb_sub_ns) return -ENOMEM; + err = create_fdb_chains(steering, FDB_TC_OFFLOAD, FDB_TC_MAX_CHAIN + 1); + if (err) + return err; + + err = create_fdb_chains(steering, FDB_FT_OFFLOAD, 1); + if (err) + return err; + + return 0; +} + +static int init_fdb_root_ns(struct mlx5_flow_steering *steering) +{ + struct fs_prio *maj_prio; + int err; + + steering->fdb_root_ns = create_root_ns(steering, FS_FT_FDB); + if (!steering->fdb_root_ns) + return -ENOMEM; + maj_prio = fs_create_prio(&steering->fdb_root_ns->ns, FDB_BYPASS_PATH, 1); if (IS_ERR(maj_prio)) { err = PTR_ERR(maj_prio); goto out_err; } - - levels = 2 * FDB_MAX_PRIO * (FDB_MAX_CHAIN + 1); - maj_prio = fs_create_prio_chained(&steering->fdb_root_ns->ns, - FDB_FAST_PATH, - levels); - if (IS_ERR(maj_prio)) { - err = PTR_ERR(maj_prio); + err = create_fdb_fast_path(steering); + if (err) goto out_err; - } - - for (chain = 0; chain <= FDB_MAX_CHAIN; chain++) { - ns = fs_create_namespace(maj_prio, MLX5_FLOW_TABLE_MISS_ACTION_DEF); - 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, FDB_SLOW_PATH, 1); if (IS_ERR(maj_prio)) { |