| /* |
| * Copyright (c) 2015, Mellanox Technologies. All rights reserved. |
| * |
| * This software is available to you under a choice of one of two |
| * licenses. You may choose to be licensed under the terms of the GNU |
| * General Public License (GPL) Version 2, available from the file |
| * COPYING in the main directory of this source tree, or the |
| * OpenIB.org BSD license below: |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| #ifndef _MLX5_FS_CORE_ |
| #define _MLX5_FS_CORE_ |
| |
| #include <linux/refcount.h> |
| #include <linux/mlx5/fs.h> |
| #include <linux/rhashtable.h> |
| |
| enum fs_node_type { |
| FS_TYPE_NAMESPACE, |
| FS_TYPE_PRIO, |
| FS_TYPE_FLOW_TABLE, |
| FS_TYPE_FLOW_GROUP, |
| FS_TYPE_FLOW_ENTRY, |
| FS_TYPE_FLOW_DEST |
| }; |
| |
| enum fs_flow_table_type { |
| FS_FT_NIC_RX = 0x0, |
| FS_FT_NIC_TX = 0x1, |
| FS_FT_ESW_EGRESS_ACL = 0x2, |
| FS_FT_ESW_INGRESS_ACL = 0x3, |
| FS_FT_FDB = 0X4, |
| FS_FT_SNIFFER_RX = 0X5, |
| FS_FT_SNIFFER_TX = 0X6, |
| FS_FT_MAX_TYPE = FS_FT_SNIFFER_TX, |
| }; |
| |
| enum fs_flow_table_op_mod { |
| FS_FT_OP_MOD_NORMAL, |
| FS_FT_OP_MOD_LAG_DEMUX, |
| }; |
| |
| enum fs_fte_status { |
| FS_FTE_STATUS_EXISTING = 1UL << 0, |
| }; |
| |
| struct mlx5_flow_steering { |
| struct mlx5_core_dev *dev; |
| struct kmem_cache *fgs_cache; |
| struct kmem_cache *ftes_cache; |
| struct mlx5_flow_root_namespace *root_ns; |
| struct mlx5_flow_root_namespace *fdb_root_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; |
| struct mlx5_flow_root_namespace *sniffer_rx_root_ns; |
| struct mlx5_flow_root_namespace *egress_root_ns; |
| }; |
| |
| struct fs_node { |
| struct list_head list; |
| struct list_head children; |
| enum fs_node_type type; |
| struct fs_node *parent; |
| struct fs_node *root; |
| /* lock the node for writing and traversing */ |
| struct rw_semaphore lock; |
| refcount_t refcount; |
| bool active; |
| void (*del_hw_func)(struct fs_node *); |
| void (*del_sw_func)(struct fs_node *); |
| atomic_t version; |
| }; |
| |
| struct mlx5_flow_rule { |
| struct fs_node node; |
| struct mlx5_flow_destination dest_attr; |
| /* next_ft should be accessed under chain_lock and only of |
| * destination type is FWD_NEXT_fT. |
| */ |
| struct list_head next_ft; |
| u32 sw_action; |
| }; |
| |
| struct mlx5_flow_handle { |
| int num_rules; |
| struct mlx5_flow_rule *rule[]; |
| }; |
| |
| /* Type of children is mlx5_flow_group */ |
| struct mlx5_flow_table { |
| struct fs_node node; |
| u32 id; |
| u16 vport; |
| unsigned int max_fte; |
| unsigned int level; |
| enum fs_flow_table_type type; |
| enum fs_flow_table_op_mod op_mod; |
| struct { |
| bool active; |
| unsigned int required_groups; |
| unsigned int num_groups; |
| } autogroup; |
| /* Protect fwd_rules */ |
| struct mutex lock; |
| /* FWD rules that point on this flow table */ |
| struct list_head fwd_rules; |
| u32 flags; |
| struct rhltable fgs_hash; |
| }; |
| |
| struct mlx5_fc_cache { |
| u64 packets; |
| u64 bytes; |
| u64 lastuse; |
| }; |
| |
| struct mlx5_fc { |
| struct rb_node node; |
| struct list_head list; |
| |
| /* last{packets,bytes} members are used when calculating the delta since |
| * last reading |
| */ |
| u64 lastpackets; |
| u64 lastbytes; |
| |
| u32 id; |
| bool deleted; |
| bool aging; |
| |
| struct mlx5_fc_cache cache ____cacheline_aligned_in_smp; |
| }; |
| |
| struct mlx5_ft_underlay_qp { |
| struct list_head list; |
| u32 qpn; |
| }; |
| |
| #define MLX5_FTE_MATCH_PARAM_RESERVED reserved_at_800 |
| /* Calculate the fte_match_param length and without the reserved length. |
| * Make sure the reserved field is the last. |
| */ |
| #define MLX5_ST_SZ_DW_MATCH_PARAM \ |
| ((MLX5_BYTE_OFF(fte_match_param, MLX5_FTE_MATCH_PARAM_RESERVED) / sizeof(u32)) + \ |
| BUILD_BUG_ON_ZERO(MLX5_ST_SZ_BYTES(fte_match_param) != \ |
| MLX5_FLD_SZ_BYTES(fte_match_param, \ |
| MLX5_FTE_MATCH_PARAM_RESERVED) +\ |
| MLX5_BYTE_OFF(fte_match_param, \ |
| MLX5_FTE_MATCH_PARAM_RESERVED))) |
| |
| /* Type of children is mlx5_flow_rule */ |
| struct fs_fte { |
| struct fs_node node; |
| u32 val[MLX5_ST_SZ_DW_MATCH_PARAM]; |
| u32 dests_size; |
| u32 index; |
| struct mlx5_flow_act action; |
| enum fs_fte_status status; |
| struct mlx5_fc *counter; |
| struct rhash_head hash; |
| }; |
| |
| /* Type of children is mlx5_flow_table/namespace */ |
| struct fs_prio { |
| struct fs_node node; |
| unsigned int num_levels; |
| unsigned int start_level; |
| unsigned int prio; |
| unsigned int num_ft; |
| }; |
| |
| /* Type of children is fs_prio */ |
| struct mlx5_flow_namespace { |
| /* parent == NULL => root ns */ |
| struct fs_node node; |
| }; |
| |
| struct mlx5_flow_group_mask { |
| u8 match_criteria_enable; |
| u32 match_criteria[MLX5_ST_SZ_DW_MATCH_PARAM]; |
| }; |
| |
| /* Type of children is fs_fte */ |
| struct mlx5_flow_group { |
| struct fs_node node; |
| struct mlx5_flow_group_mask mask; |
| u32 start_index; |
| u32 max_ftes; |
| struct ida fte_allocator; |
| u32 id; |
| struct rhashtable ftes_hash; |
| struct rhlist_head hash; |
| }; |
| |
| struct mlx5_flow_root_namespace { |
| struct mlx5_flow_namespace ns; |
| enum fs_flow_table_type table_type; |
| struct mlx5_core_dev *dev; |
| struct mlx5_flow_table *root_ft; |
| /* Should be held when chaining flow tables */ |
| struct mutex chain_lock; |
| struct list_head underlay_qpns; |
| const struct mlx5_flow_cmds *cmds; |
| }; |
| |
| int mlx5_init_fc_stats(struct mlx5_core_dev *dev); |
| void mlx5_cleanup_fc_stats(struct mlx5_core_dev *dev); |
| void mlx5_fc_queue_stats_work(struct mlx5_core_dev *dev, |
| struct delayed_work *dwork, |
| unsigned long delay); |
| void mlx5_fc_update_sampling_interval(struct mlx5_core_dev *dev, |
| unsigned long interval); |
| |
| int mlx5_init_fs(struct mlx5_core_dev *dev); |
| void mlx5_cleanup_fs(struct mlx5_core_dev *dev); |
| |
| #define fs_get_obj(v, _node) {v = container_of((_node), typeof(*v), node); } |
| |
| #define fs_list_for_each_entry(pos, root) \ |
| list_for_each_entry(pos, root, node.list) |
| |
| #define fs_list_for_each_entry_safe(pos, tmp, root) \ |
| list_for_each_entry_safe(pos, tmp, root, node.list) |
| |
| #define fs_for_each_ns_or_ft_reverse(pos, prio) \ |
| list_for_each_entry_reverse(pos, &(prio)->node.children, list) |
| |
| #define fs_for_each_ns_or_ft(pos, prio) \ |
| list_for_each_entry(pos, (&(prio)->node.children), list) |
| |
| #define fs_for_each_prio(pos, ns) \ |
| fs_list_for_each_entry(pos, &(ns)->node.children) |
| |
| #define fs_for_each_ns(pos, prio) \ |
| fs_list_for_each_entry(pos, &(prio)->node.children) |
| |
| #define fs_for_each_ft(pos, prio) \ |
| fs_list_for_each_entry(pos, &(prio)->node.children) |
| |
| #define fs_for_each_ft_safe(pos, tmp, prio) \ |
| fs_list_for_each_entry_safe(pos, tmp, &(prio)->node.children) |
| |
| #define fs_for_each_fg(pos, ft) \ |
| fs_list_for_each_entry(pos, &(ft)->node.children) |
| |
| #define fs_for_each_fte(pos, fg) \ |
| fs_list_for_each_entry(pos, &(fg)->node.children) |
| |
| #define fs_for_each_dst(pos, fte) \ |
| fs_list_for_each_entry(pos, &(fte)->node.children) |
| |
| #define MLX5_CAP_FLOWTABLE_TYPE(mdev, cap, type) ( \ |
| (type == FS_FT_NIC_RX) ? MLX5_CAP_FLOWTABLE_NIC_RX(mdev, cap) : \ |
| (type == FS_FT_ESW_EGRESS_ACL) ? MLX5_CAP_ESW_EGRESS_ACL(mdev, cap) : \ |
| (type == FS_FT_ESW_INGRESS_ACL) ? MLX5_CAP_ESW_INGRESS_ACL(mdev, cap) : \ |
| (type == FS_FT_FDB) ? MLX5_CAP_ESW_FLOWTABLE_FDB(mdev, cap) : \ |
| (type == FS_FT_SNIFFER_RX) ? MLX5_CAP_FLOWTABLE_SNIFFER_RX(mdev, cap) : \ |
| (type == FS_FT_SNIFFER_TX) ? MLX5_CAP_FLOWTABLE_SNIFFER_TX(mdev, cap) : \ |
| (BUILD_BUG_ON_ZERO(FS_FT_SNIFFER_TX != FS_FT_MAX_TYPE))\ |
| ) |
| |
| #endif |