Merge tag 'pinctrl-v4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
[linux-2.6-block.git] / drivers / net / ethernet / mellanox / mlx5 / core / eswitch.h
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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>
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39#include <linux/mlx5/device.h>
40
41#define MLX5_MAX_UC_PER_VPORT(dev) \
42 (1 << MLX5_CAP_GEN(dev, log_max_current_uc_list))
43
44#define MLX5_MAX_MC_PER_VPORT(dev) \
45 (1 << MLX5_CAP_GEN(dev, log_max_current_mc_list))
46
47#define MLX5_L2_ADDR_HASH_SIZE (BIT(BITS_PER_BYTE))
48#define MLX5_L2_ADDR_HASH(addr) (addr[5])
49
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50#define FDB_UPLINK_VPORT 0xffff
51
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52/* L2 -mac address based- hash helpers */
53struct l2addr_node {
54 struct hlist_node hlist;
55 u8 addr[ETH_ALEN];
56};
57
58#define for_each_l2hash_node(hn, tmp, hash, i) \
59 for (i = 0; i < MLX5_L2_ADDR_HASH_SIZE; i++) \
60 hlist_for_each_entry_safe(hn, tmp, &hash[i], hlist)
61
62#define l2addr_hash_find(hash, mac, type) ({ \
63 int ix = MLX5_L2_ADDR_HASH(mac); \
64 bool found = false; \
65 type *ptr = NULL; \
66 \
67 hlist_for_each_entry(ptr, &hash[ix], node.hlist) \
68 if (ether_addr_equal(ptr->node.addr, mac)) {\
69 found = true; \
70 break; \
71 } \
72 if (!found) \
73 ptr = NULL; \
74 ptr; \
75})
76
77#define l2addr_hash_add(hash, mac, type, gfp) ({ \
78 int ix = MLX5_L2_ADDR_HASH(mac); \
79 type *ptr = NULL; \
80 \
81 ptr = kzalloc(sizeof(type), gfp); \
82 if (ptr) { \
83 ether_addr_copy(ptr->node.addr, mac); \
84 hlist_add_head(&ptr->node.hlist, &hash[ix]);\
85 } \
86 ptr; \
87})
88
89#define l2addr_hash_del(ptr) ({ \
90 hlist_del(&ptr->node.hlist); \
91 kfree(ptr); \
92})
93
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94struct vport_ingress {
95 struct mlx5_flow_table *acl;
96 struct mlx5_flow_group *allow_untagged_spoofchk_grp;
97 struct mlx5_flow_group *allow_spoofchk_only_grp;
98 struct mlx5_flow_group *allow_untagged_only_grp;
99 struct mlx5_flow_group *drop_grp;
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100 struct mlx5_flow_rule *allow_rule;
101 struct mlx5_flow_rule *drop_rule;
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102};
103
104struct vport_egress {
105 struct mlx5_flow_table *acl;
106 struct mlx5_flow_group *allowed_vlans_grp;
107 struct mlx5_flow_group *drop_grp;
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108 struct mlx5_flow_rule *allowed_vlan;
109 struct mlx5_flow_rule *drop_rule;
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110};
111
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112struct mlx5_vport_info {
113 u8 mac[ETH_ALEN];
114 u16 vlan;
115 u8 qos;
116 u64 node_guid;
117 int link_state;
118 bool spoofchk;
119 bool trusted;
120};
121
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122struct mlx5_vport {
123 struct mlx5_core_dev *dev;
124 int vport;
125 struct hlist_head uc_list[MLX5_L2_ADDR_HASH_SIZE];
81848731 126 struct hlist_head mc_list[MLX5_L2_ADDR_HASH_SIZE];
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127 struct mlx5_flow_rule *promisc_rule;
128 struct mlx5_flow_rule *allmulti_rule;
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129 struct work_struct vport_change_handler;
130
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131 struct vport_ingress ingress;
132 struct vport_egress egress;
133
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134 struct mlx5_vport_info info;
135
073bb189 136 bool enabled;
81848731 137 u16 enabled_events;
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138};
139
140struct mlx5_l2_table {
141 struct hlist_head l2_hash[MLX5_L2_ADDR_HASH_SIZE];
142 u32 size;
143 unsigned long *bitmap;
144};
145
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146struct mlx5_eswitch_fdb {
147 void *fdb;
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148 union {
149 struct legacy_fdb {
150 struct mlx5_flow_group *addr_grp;
151 struct mlx5_flow_group *allmulti_grp;
152 struct mlx5_flow_group *promisc_grp;
153 } legacy;
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154
155 struct offloads_fdb {
1033665e 156 struct mlx5_flow_table *fdb;
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157 struct mlx5_flow_group *send_to_vport_grp;
158 struct mlx5_flow_group *miss_grp;
3aa33572 159 struct mlx5_flow_rule *miss_rule;
f5f82476 160 int vlan_push_pop_refcount;
69697b6e 161 } offloads;
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162 };
163};
164
165enum {
166 SRIOV_NONE,
167 SRIOV_LEGACY,
168 SRIOV_OFFLOADS
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169};
170
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171struct mlx5_esw_sq {
172 struct mlx5_flow_rule *send_to_vport_rule;
173 struct list_head list;
174};
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175
176struct mlx5_eswitch_rep {
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177 int (*load)(struct mlx5_eswitch *esw,
178 struct mlx5_eswitch_rep *rep);
179 void (*unload)(struct mlx5_eswitch *esw,
180 struct mlx5_eswitch_rep *rep);
127ea380 181 u16 vport;
bac9b6aa 182 u8 hw_id[ETH_ALEN];
127ea380 183 void *priv_data;
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184
185 struct mlx5_flow_rule *vport_rx_rule;
cb67b832 186 struct list_head vport_sqs_list;
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187 u16 vlan;
188 u32 vlan_refcount;
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189 bool valid;
190};
191
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192struct mlx5_esw_offload {
193 struct mlx5_flow_table *ft_offloads;
fed9ce22 194 struct mlx5_flow_group *vport_rx_group;
127ea380 195 struct mlx5_eswitch_rep *vport_reps;
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196};
197
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198struct mlx5_eswitch {
199 struct mlx5_core_dev *dev;
200 struct mlx5_l2_table l2_table;
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201 struct mlx5_eswitch_fdb fdb_table;
202 struct hlist_head mc_table[MLX5_L2_ADDR_HASH_SIZE];
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203 struct workqueue_struct *work_queue;
204 struct mlx5_vport *vports;
205 int total_vports;
81848731 206 int enabled_vports;
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207 /* Synchronize between vport change events
208 * and async SRIOV admin state changes
209 */
210 struct mutex state_lock;
a35f71f2 211 struct esw_mc_addr *mc_promisc;
c116c6ee 212 struct mlx5_esw_offload offloads;
6ab36e35 213 int mode;
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214};
215
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216void esw_offloads_cleanup(struct mlx5_eswitch *esw, int nvports);
217int esw_offloads_init(struct mlx5_eswitch *esw, int nvports);
218
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219/* E-Switch API */
220int mlx5_eswitch_init(struct mlx5_core_dev *dev);
221void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw);
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222void mlx5_eswitch_attach(struct mlx5_eswitch *esw);
223void mlx5_eswitch_detach(struct mlx5_eswitch *esw);
073bb189 224void mlx5_eswitch_vport_event(struct mlx5_eswitch *esw, struct mlx5_eqe *eqe);
6ab36e35 225int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs, int mode);
81848731 226void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw);
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227int mlx5_eswitch_set_vport_mac(struct mlx5_eswitch *esw,
228 int vport, u8 mac[ETH_ALEN]);
229int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw,
230 int vport, int link_state);
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231int mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
232 int vport, u16 vlan, u8 qos);
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233int mlx5_eswitch_set_vport_spoofchk(struct mlx5_eswitch *esw,
234 int vport, bool spoofchk);
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235int mlx5_eswitch_set_vport_trust(struct mlx5_eswitch *esw,
236 int vport_num, bool setting);
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237int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw,
238 int vport, struct ifla_vf_info *ivi);
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239int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,
240 int vport,
241 struct ifla_vf_stats *vf_stats);
073bb189 242
3d80d1a2 243struct mlx5_flow_spec;
776b12b6 244struct mlx5_esw_flow_attr;
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245
246struct mlx5_flow_rule *
247mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw,
248 struct mlx5_flow_spec *spec,
776b12b6 249 struct mlx5_esw_flow_attr *attr);
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250struct mlx5_flow_rule *
251mlx5_eswitch_create_vport_rx_rule(struct mlx5_eswitch *esw, int vport, u32 tirn);
252
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253enum {
254 SET_VLAN_STRIP = BIT(0),
255 SET_VLAN_INSERT = BIT(1)
256};
257
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258#define MLX5_FLOW_CONTEXT_ACTION_VLAN_POP 0x40
259#define MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH 0x80
260
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261struct mlx5_esw_flow_attr {
262 struct mlx5_eswitch_rep *in_rep;
263 struct mlx5_eswitch_rep *out_rep;
264
265 int action;
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266 u16 vlan;
267 bool vlan_handled;
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268};
269
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270int mlx5_eswitch_sqs2vport_start(struct mlx5_eswitch *esw,
271 struct mlx5_eswitch_rep *rep,
272 u16 *sqns_array, int sqns_num);
273void mlx5_eswitch_sqs2vport_stop(struct mlx5_eswitch *esw,
274 struct mlx5_eswitch_rep *rep);
275
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276int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode);
277int mlx5_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode);
127ea380 278void mlx5_eswitch_register_vport_rep(struct mlx5_eswitch *esw,
9deb2241 279 int vport_index,
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280 struct mlx5_eswitch_rep *rep);
281void mlx5_eswitch_unregister_vport_rep(struct mlx5_eswitch *esw,
9deb2241 282 int vport_index);
feae9087 283
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284int mlx5_eswitch_add_vlan_action(struct mlx5_eswitch *esw,
285 struct mlx5_esw_flow_attr *attr);
286int mlx5_eswitch_del_vlan_action(struct mlx5_eswitch *esw,
287 struct mlx5_esw_flow_attr *attr);
288int __mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
289 int vport, u16 vlan, u8 qos, u8 set_flags);
290
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291#define MLX5_DEBUG_ESWITCH_MASK BIT(3)
292
293#define esw_info(dev, format, ...) \
294 pr_info("(%s): E-Switch: " format, (dev)->priv.name, ##__VA_ARGS__)
295
296#define esw_warn(dev, format, ...) \
297 pr_warn("(%s): E-Switch: " format, (dev)->priv.name, ##__VA_ARGS__)
298
299#define esw_debug(dev, format, ...) \
300 mlx5_core_dbg_mask(dev, MLX5_DEBUG_ESWITCH_MASK, format, ##__VA_ARGS__)
073bb189 301#endif /* __MLX5_ESWITCH_H__ */