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net/mlx5: Add cap bits for multi fdb encap
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1/*
2 * Copyright (c) 2015, Mellanox Technologies, Ltd. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33#ifndef __MLX5_ESWITCH_H__
34#define __MLX5_ESWITCH_H__
35
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36#include <linux/if_ether.h>
37#include <linux/if_link.h>
feae9087 38#include <net/devlink.h>
073bb189 39#include <linux/mlx5/device.h>
57cbd893 40#include <linux/mlx5/eswitch.h>
cc495188 41#include <linux/mlx5/fs.h>
eeb66cdb 42#include "lib/mpfs.h"
073bb189 43
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44#ifdef CONFIG_MLX5_ESWITCH
45
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46#define MLX5_MAX_UC_PER_VPORT(dev) \
47 (1 << MLX5_CAP_GEN(dev, log_max_current_uc_list))
48
49#define MLX5_MAX_MC_PER_VPORT(dev) \
50 (1 << MLX5_CAP_GEN(dev, log_max_current_mc_list))
51
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52#define FDB_UPLINK_VPORT 0xffff
53
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54#define MLX5_MIN_BW_SHARE 1
55
56#define MLX5_RATE_TO_BW_SHARE(rate, divider, limit) \
57 min_t(u32, max_t(u32, (rate) / (divider), MLX5_MIN_BW_SHARE), limit)
58
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59#define mlx5_esw_has_fwd_fdb(dev) \
60 MLX5_CAP_ESW_FLOWTABLE(dev, fdb_multi_path_to_table)
61
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62struct vport_ingress {
63 struct mlx5_flow_table *acl;
64 struct mlx5_flow_group *allow_untagged_spoofchk_grp;
65 struct mlx5_flow_group *allow_spoofchk_only_grp;
66 struct mlx5_flow_group *allow_untagged_only_grp;
67 struct mlx5_flow_group *drop_grp;
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68 struct mlx5_flow_handle *allow_rule;
69 struct mlx5_flow_handle *drop_rule;
b8a0dbe3 70 struct mlx5_fc *drop_counter;
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71};
72
73struct vport_egress {
74 struct mlx5_flow_table *acl;
75 struct mlx5_flow_group *allowed_vlans_grp;
76 struct mlx5_flow_group *drop_grp;
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77 struct mlx5_flow_handle *allowed_vlan;
78 struct mlx5_flow_handle *drop_rule;
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79 struct mlx5_fc *drop_counter;
80};
81
82struct mlx5_vport_drop_stats {
83 u64 rx_dropped;
84 u64 tx_dropped;
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85};
86
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87struct mlx5_vport_info {
88 u8 mac[ETH_ALEN];
89 u16 vlan;
90 u8 qos;
91 u64 node_guid;
92 int link_state;
c9497c98 93 u32 min_rate;
1bd27b11 94 u32 max_rate;
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95 bool spoofchk;
96 bool trusted;
97};
98
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99struct mlx5_vport {
100 struct mlx5_core_dev *dev;
101 int vport;
102 struct hlist_head uc_list[MLX5_L2_ADDR_HASH_SIZE];
81848731 103 struct hlist_head mc_list[MLX5_L2_ADDR_HASH_SIZE];
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104 struct mlx5_flow_handle *promisc_rule;
105 struct mlx5_flow_handle *allmulti_rule;
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106 struct work_struct vport_change_handler;
107
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108 struct vport_ingress ingress;
109 struct vport_egress egress;
110
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111 struct mlx5_vport_info info;
112
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113 struct {
114 bool enabled;
115 u32 esw_tsar_ix;
c9497c98 116 u32 bw_share;
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117 } qos;
118
073bb189 119 bool enabled;
81848731 120 u16 enabled_events;
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121};
122
81848731 123struct mlx5_eswitch_fdb {
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124 union {
125 struct legacy_fdb {
52fff327 126 struct mlx5_flow_table *fdb;
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127 struct mlx5_flow_group *addr_grp;
128 struct mlx5_flow_group *allmulti_grp;
129 struct mlx5_flow_group *promisc_grp;
130 } legacy;
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131
132 struct offloads_fdb {
52fff327 133 struct mlx5_flow_table *fast_fdb;
a842dd04 134 struct mlx5_flow_table *fwd_fdb;
52fff327 135 struct mlx5_flow_table *slow_fdb;
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136 struct mlx5_flow_group *send_to_vport_grp;
137 struct mlx5_flow_group *miss_grp;
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138 struct mlx5_flow_handle *miss_rule_uni;
139 struct mlx5_flow_handle *miss_rule_multi;
f5f82476 140 int vlan_push_pop_refcount;
69697b6e 141 } offloads;
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142 };
143};
144
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145struct mlx5_esw_offload {
146 struct mlx5_flow_table *ft_offloads;
fed9ce22 147 struct mlx5_flow_group *vport_rx_group;
127ea380 148 struct mlx5_eswitch_rep *vport_reps;
a54e20b4 149 DECLARE_HASHTABLE(encap_tbl, 8);
11c9c548 150 DECLARE_HASHTABLE(mod_hdr_tbl, 8);
bffaa916 151 u8 inline_mode;
375f51e2 152 u64 num_flows;
7768d197 153 u8 encap;
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154};
155
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156/* E-Switch MC FDB table hash node */
157struct esw_mc_addr { /* SRIOV only */
158 struct l2addr_node node;
159 struct mlx5_flow_handle *uplink_rule; /* Forward to uplink rule */
160 u32 refcnt;
161};
162
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163struct mlx5_eswitch {
164 struct mlx5_core_dev *dev;
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165 struct mlx5_eswitch_fdb fdb_table;
166 struct hlist_head mc_table[MLX5_L2_ADDR_HASH_SIZE];
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167 struct workqueue_struct *work_queue;
168 struct mlx5_vport *vports;
169 int total_vports;
81848731 170 int enabled_vports;
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171 /* Synchronize between vport change events
172 * and async SRIOV admin state changes
173 */
174 struct mutex state_lock;
0a0ab1d2 175 struct esw_mc_addr mc_promisc;
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176
177 struct {
178 bool enabled;
179 u32 root_tsar_id;
180 } qos;
181
c116c6ee 182 struct mlx5_esw_offload offloads;
6ab36e35 183 int mode;
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184};
185
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186void esw_offloads_cleanup(struct mlx5_eswitch *esw, int nvports);
187int esw_offloads_init(struct mlx5_eswitch *esw, int nvports);
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188void esw_offloads_cleanup_reps(struct mlx5_eswitch *esw);
189int esw_offloads_init_reps(struct mlx5_eswitch *esw);
766a0e97 190
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191/* E-Switch API */
192int mlx5_eswitch_init(struct mlx5_core_dev *dev);
193void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw);
194void mlx5_eswitch_vport_event(struct mlx5_eswitch *esw, struct mlx5_eqe *eqe);
6ab36e35 195int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs, int mode);
81848731 196void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw);
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197int mlx5_eswitch_set_vport_mac(struct mlx5_eswitch *esw,
198 int vport, u8 mac[ETH_ALEN]);
199int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw,
200 int vport, int link_state);
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201int mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
202 int vport, u16 vlan, u8 qos);
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203int mlx5_eswitch_set_vport_spoofchk(struct mlx5_eswitch *esw,
204 int vport, bool spoofchk);
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205int mlx5_eswitch_set_vport_trust(struct mlx5_eswitch *esw,
206 int vport_num, bool setting);
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207int mlx5_eswitch_set_vport_rate(struct mlx5_eswitch *esw, int vport,
208 u32 max_rate, u32 min_rate);
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209int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw,
210 int vport, struct ifla_vf_info *ivi);
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211int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,
212 int vport,
213 struct ifla_vf_stats *vf_stats);
159fe639 214void mlx5_eswitch_del_send_to_vport_rule(struct mlx5_flow_handle *rule);
073bb189 215
3d80d1a2 216struct mlx5_flow_spec;
776b12b6 217struct mlx5_esw_flow_attr;
3d80d1a2 218
74491de9 219struct mlx5_flow_handle *
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220mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw,
221 struct mlx5_flow_spec *spec,
776b12b6 222 struct mlx5_esw_flow_attr *attr);
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223struct mlx5_flow_handle *
224mlx5_eswitch_add_fwd_rule(struct mlx5_eswitch *esw,
225 struct mlx5_flow_spec *spec,
226 struct mlx5_esw_flow_attr *attr);
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227void
228mlx5_eswitch_del_offloaded_rule(struct mlx5_eswitch *esw,
229 struct mlx5_flow_handle *rule,
230 struct mlx5_esw_flow_attr *attr);
231
74491de9 232struct mlx5_flow_handle *
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233mlx5_eswitch_create_vport_rx_rule(struct mlx5_eswitch *esw, int vport,
234 struct mlx5_flow_destination *dest);
fed9ce22 235
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236enum {
237 SET_VLAN_STRIP = BIT(0),
238 SET_VLAN_INSERT = BIT(1)
239};
240
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241enum mlx5_flow_match_level {
242 MLX5_MATCH_NONE = MLX5_INLINE_MODE_NONE,
243 MLX5_MATCH_L2 = MLX5_INLINE_MODE_L2,
244 MLX5_MATCH_L3 = MLX5_INLINE_MODE_IP,
245 MLX5_MATCH_L4 = MLX5_INLINE_MODE_TCP_UDP,
246};
247
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248/* current maximum for flow based vport multicasting */
249#define MLX5_MAX_FLOW_FWD_VPORTS 2
250
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251struct mlx5_esw_flow_attr {
252 struct mlx5_eswitch_rep *in_rep;
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253 struct mlx5_eswitch_rep *out_rep[MLX5_MAX_FLOW_FWD_VPORTS];
254 struct mlx5_core_dev *out_mdev[MLX5_MAX_FLOW_FWD_VPORTS];
10ff5359 255 struct mlx5_core_dev *in_mdev;
776b12b6 256
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257 int mirror_count;
258 int out_count;
259
776b12b6 260 int action;
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261 __be16 vlan_proto[MLX5_FS_VLAN_DEPTH];
262 u16 vlan_vid[MLX5_FS_VLAN_DEPTH];
263 u8 vlan_prio[MLX5_FS_VLAN_DEPTH];
264 u8 total_vlan;
f5f82476 265 bool vlan_handled;
45247bf2 266 u32 encap_id;
d7e75a32 267 u32 mod_hdr_id;
38aa51c1 268 u8 match_level;
b8aee822 269 struct mlx5_fc *counter;
232c0013 270 struct mlx5e_tc_flow_parse_attr *parse_attr;
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271};
272
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273int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
274 struct netlink_ext_ack *extack);
feae9087 275int mlx5_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode);
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276int mlx5_devlink_eswitch_inline_mode_set(struct devlink *devlink, u8 mode,
277 struct netlink_ext_ack *extack);
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278int mlx5_devlink_eswitch_inline_mode_get(struct devlink *devlink, u8 *mode);
279int mlx5_eswitch_inline_mode_get(struct mlx5_eswitch *esw, int nvfs, u8 *mode);
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280int mlx5_devlink_eswitch_encap_mode_set(struct devlink *devlink, u8 encap,
281 struct netlink_ext_ack *extack);
7768d197 282int mlx5_devlink_eswitch_encap_mode_get(struct devlink *devlink, u8 *encap);
a4b97ab4 283void *mlx5_eswitch_get_uplink_priv(struct mlx5_eswitch *esw, u8 rep_type);
feae9087 284
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285int mlx5_eswitch_add_vlan_action(struct mlx5_eswitch *esw,
286 struct mlx5_esw_flow_attr *attr);
287int mlx5_eswitch_del_vlan_action(struct mlx5_eswitch *esw,
288 struct mlx5_esw_flow_attr *attr);
289int __mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
290 int vport, u16 vlan, u8 qos, u8 set_flags);
291
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292static inline bool mlx5_eswitch_vlan_actions_supported(struct mlx5_core_dev *dev,
293 u8 vlan_depth)
6acfbf38 294{
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295 bool ret = MLX5_CAP_ESW_FLOWTABLE_FDB(dev, pop_vlan) &&
296 MLX5_CAP_ESW_FLOWTABLE_FDB(dev, push_vlan);
297
298 if (vlan_depth == 1)
299 return ret;
300
301 return ret && MLX5_CAP_ESW_FLOWTABLE_FDB(dev, pop_vlan_2) &&
302 MLX5_CAP_ESW_FLOWTABLE_FDB(dev, push_vlan_2);
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303}
304
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305#define MLX5_DEBUG_ESWITCH_MASK BIT(3)
306
307#define esw_info(dev, format, ...) \
308 pr_info("(%s): E-Switch: " format, (dev)->priv.name, ##__VA_ARGS__)
309
310#define esw_warn(dev, format, ...) \
311 pr_warn("(%s): E-Switch: " format, (dev)->priv.name, ##__VA_ARGS__)
312
313#define esw_debug(dev, format, ...) \
314 mlx5_core_dbg_mask(dev, MLX5_DEBUG_ESWITCH_MASK, format, ##__VA_ARGS__)
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315#else /* CONFIG_MLX5_ESWITCH */
316/* eswitch API stubs */
317static inline int mlx5_eswitch_init(struct mlx5_core_dev *dev) { return 0; }
318static inline void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw) {}
319static inline void mlx5_eswitch_vport_event(struct mlx5_eswitch *esw, struct mlx5_eqe *eqe) {}
320static inline int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs, int mode) { return 0; }
321static inline void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw) {}
322#endif /* CONFIG_MLX5_ESWITCH */
323
073bb189 324#endif /* __MLX5_ESWITCH_H__ */