2 * Copyright (c) 2015, Mellanox Technologies. All rights reserved.
4 * This software is available to you under a choice of one of two
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6 * General Public License (GPL) Version 2, available from the file
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8 * OpenIB.org BSD license below:
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11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
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21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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33 #ifndef _MLX5_FS_CORE_
34 #define _MLX5_FS_CORE_
36 #include <linux/mlx5/fs.h>
37 #include <linux/rhashtable.h>
48 enum fs_flow_table_type {
50 FS_FT_ESW_EGRESS_ACL = 0x2,
51 FS_FT_ESW_INGRESS_ACL = 0x3,
53 FS_FT_SNIFFER_RX = 0X5,
54 FS_FT_SNIFFER_TX = 0X6,
55 FS_FT_MAX_TYPE = FS_FT_SNIFFER_TX,
58 enum fs_flow_table_op_mod {
60 FS_FT_OP_MOD_LAG_DEMUX,
64 FS_FTE_STATUS_EXISTING = 1UL << 0,
67 struct mlx5_flow_steering {
68 struct mlx5_core_dev *dev;
69 struct mlx5_flow_root_namespace *root_ns;
70 struct mlx5_flow_root_namespace *fdb_root_ns;
71 struct mlx5_flow_root_namespace *esw_egress_root_ns;
72 struct mlx5_flow_root_namespace *esw_ingress_root_ns;
73 struct mlx5_flow_root_namespace *sniffer_tx_root_ns;
74 struct mlx5_flow_root_namespace *sniffer_rx_root_ns;
78 struct list_head list;
79 struct list_head children;
80 enum fs_node_type type;
81 struct fs_node *parent;
83 /* lock the node for writing and traversing */
86 void (*remove_func)(struct fs_node *);
89 struct mlx5_flow_rule {
91 struct mlx5_flow_destination dest_attr;
92 /* next_ft should be accessed under chain_lock and only of
93 * destination type is FWD_NEXT_fT.
95 struct list_head next_ft;
99 struct mlx5_flow_handle {
101 struct mlx5_flow_rule *rule[];
104 /* Type of children is mlx5_flow_group */
105 struct mlx5_flow_table {
109 unsigned int max_fte;
111 enum fs_flow_table_type type;
112 enum fs_flow_table_op_mod op_mod;
115 unsigned int required_groups;
116 unsigned int num_groups;
118 /* Protect fwd_rules */
120 /* FWD rules that point on this flow table */
121 struct list_head fwd_rules;
123 struct ida fte_allocator;
124 struct rhltable fgs_hash;
127 struct mlx5_fc_cache {
135 struct list_head list;
137 /* last{packets,bytes} members are used when calculating the delta since
147 struct mlx5_fc_cache cache ____cacheline_aligned_in_smp;
150 #define MLX5_FTE_MATCH_PARAM_RESERVED reserved_at_600
151 /* Calculate the fte_match_param length and without the reserved length.
152 * Make sure the reserved field is the last.
154 #define MLX5_ST_SZ_DW_MATCH_PARAM \
155 ((MLX5_BYTE_OFF(fte_match_param, MLX5_FTE_MATCH_PARAM_RESERVED) / sizeof(u32)) + \
156 BUILD_BUG_ON_ZERO(MLX5_ST_SZ_BYTES(fte_match_param) != \
157 MLX5_FLD_SZ_BYTES(fte_match_param, \
158 MLX5_FTE_MATCH_PARAM_RESERVED) +\
159 MLX5_BYTE_OFF(fte_match_param, \
160 MLX5_FTE_MATCH_PARAM_RESERVED)))
162 /* Type of children is mlx5_flow_rule */
165 u32 val[MLX5_ST_SZ_DW_MATCH_PARAM];
172 enum fs_fte_status status;
173 struct mlx5_fc *counter;
174 struct rhash_head hash;
177 /* Type of children is mlx5_flow_table/namespace */
180 unsigned int num_levels;
181 unsigned int start_level;
186 /* Type of children is fs_prio */
187 struct mlx5_flow_namespace {
188 /* parent == NULL => root ns */
192 struct mlx5_flow_group_mask {
193 u8 match_criteria_enable;
194 u32 match_criteria[MLX5_ST_SZ_DW_MATCH_PARAM];
197 /* Type of children is fs_fte */
198 struct mlx5_flow_group {
200 struct mlx5_flow_group_mask mask;
204 struct rhashtable ftes_hash;
205 struct rhlist_head hash;
208 struct mlx5_flow_root_namespace {
209 struct mlx5_flow_namespace ns;
210 enum fs_flow_table_type table_type;
211 struct mlx5_core_dev *dev;
212 struct mlx5_flow_table *root_ft;
213 /* Should be held when chaining flow tables */
214 struct mutex chain_lock;
218 int mlx5_init_fc_stats(struct mlx5_core_dev *dev);
219 void mlx5_cleanup_fc_stats(struct mlx5_core_dev *dev);
220 void mlx5_fc_queue_stats_work(struct mlx5_core_dev *dev,
221 struct delayed_work *dwork,
222 unsigned long delay);
223 void mlx5_fc_update_sampling_interval(struct mlx5_core_dev *dev,
224 unsigned long interval);
226 int mlx5_init_fs(struct mlx5_core_dev *dev);
227 void mlx5_cleanup_fs(struct mlx5_core_dev *dev);
229 #define fs_get_obj(v, _node) {v = container_of((_node), typeof(*v), node); }
231 #define fs_list_for_each_entry(pos, root) \
232 list_for_each_entry(pos, root, node.list)
234 #define fs_list_for_each_entry_safe(pos, tmp, root) \
235 list_for_each_entry_safe(pos, tmp, root, node.list)
237 #define fs_for_each_ns_or_ft_reverse(pos, prio) \
238 list_for_each_entry_reverse(pos, &(prio)->node.children, list)
240 #define fs_for_each_ns_or_ft(pos, prio) \
241 list_for_each_entry(pos, (&(prio)->node.children), list)
243 #define fs_for_each_prio(pos, ns) \
244 fs_list_for_each_entry(pos, &(ns)->node.children)
246 #define fs_for_each_ns(pos, prio) \
247 fs_list_for_each_entry(pos, &(prio)->node.children)
249 #define fs_for_each_ft(pos, prio) \
250 fs_list_for_each_entry(pos, &(prio)->node.children)
252 #define fs_for_each_ft_safe(pos, tmp, prio) \
253 fs_list_for_each_entry_safe(pos, tmp, &(prio)->node.children)
255 #define fs_for_each_fg(pos, ft) \
256 fs_list_for_each_entry(pos, &(ft)->node.children)
258 #define fs_for_each_fte(pos, fg) \
259 fs_list_for_each_entry(pos, &(fg)->node.children)
261 #define fs_for_each_dst(pos, fte) \
262 fs_list_for_each_entry(pos, &(fte)->node.children)
264 #define MLX5_CAP_FLOWTABLE_TYPE(mdev, cap, type) ( \
265 (type == FS_FT_NIC_RX) ? MLX5_CAP_FLOWTABLE_NIC_RX(mdev, cap) : \
266 (type == FS_FT_ESW_EGRESS_ACL) ? MLX5_CAP_ESW_EGRESS_ACL(mdev, cap) : \
267 (type == FS_FT_ESW_INGRESS_ACL) ? MLX5_CAP_ESW_INGRESS_ACL(mdev, cap) : \
268 (type == FS_FT_FDB) ? MLX5_CAP_ESW_FLOWTABLE_FDB(mdev, cap) : \
269 (type == FS_FT_SNIFFER_RX) ? MLX5_CAP_FLOWTABLE_SNIFFER_RX(mdev, cap) : \
270 (type == FS_FT_SNIFFER_TX) ? MLX5_CAP_FLOWTABLE_SNIFFER_TX(mdev, cap) : \
271 (BUILD_BUG_ON_ZERO(FS_FT_SNIFFER_TX != FS_FT_MAX_TYPE))\