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[mirror_ubuntu-hirsute-kernel.git] / drivers / net / ethernet / mellanox / mlxsw / core.h
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1/*
2 * drivers/net/ethernet/mellanox/mlxsw/core.h
3 * Copyright (c) 2015 Mellanox Technologies. All rights reserved.
4 * Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
5 * Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com>
6 * Copyright (c) 2015 Elad Raz <eladr@mellanox.com>
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the names of the copyright holders nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
19 *
20 * Alternatively, this software may be distributed under the terms of the
21 * GNU General Public License ("GPL") version 2 as published by the Free
22 * Software Foundation.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
35 */
36
37#ifndef _MLXSW_CORE_H
38#define _MLXSW_CORE_H
39
40#include <linux/module.h>
41#include <linux/device.h>
42#include <linux/slab.h>
43#include <linux/gfp.h>
44#include <linux/types.h>
45#include <linux/skbuff.h>
dd9bdb04 46#include <linux/workqueue.h>
932762b6 47#include <net/devlink.h>
93c1edb2 48
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49#include "trap.h"
50#include "reg.h"
51
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52#include "cmd.h"
53
54#define MLXSW_MODULE_ALIAS_PREFIX "mlxsw-driver-"
55#define MODULE_MLXSW_DRIVER_ALIAS(kind) \
56 MODULE_ALIAS(MLXSW_MODULE_ALIAS_PREFIX kind)
57
31557f0f 58#define MLXSW_DEVICE_KIND_SWITCHX2 "switchx2"
56ade8fe 59#define MLXSW_DEVICE_KIND_SPECTRUM "spectrum"
31557f0f 60
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61struct mlxsw_core;
62struct mlxsw_driver;
63struct mlxsw_bus;
64struct mlxsw_bus_info;
65
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66void *mlxsw_core_driver_priv(struct mlxsw_core *mlxsw_core);
67
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68int mlxsw_core_driver_register(struct mlxsw_driver *mlxsw_driver);
69void mlxsw_core_driver_unregister(struct mlxsw_driver *mlxsw_driver);
70
71int mlxsw_core_bus_device_register(const struct mlxsw_bus_info *mlxsw_bus_info,
72 const struct mlxsw_bus *mlxsw_bus,
73 void *bus_priv);
74void mlxsw_core_bus_device_unregister(struct mlxsw_core *mlxsw_core);
75
76struct mlxsw_tx_info {
77 u8 local_port;
78 bool is_emad;
79};
80
307c2431 81bool mlxsw_core_skb_transmit_busy(struct mlxsw_core *mlxsw_core,
d003462a 82 const struct mlxsw_tx_info *tx_info);
307c2431 83int mlxsw_core_skb_transmit(struct mlxsw_core *mlxsw_core, struct sk_buff *skb,
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84 const struct mlxsw_tx_info *tx_info);
85
86struct mlxsw_rx_listener {
87 void (*func)(struct sk_buff *skb, u8 local_port, void *priv);
88 u8 local_port;
89 u16 trap_id;
90};
91
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92struct mlxsw_event_listener {
93 void (*func)(const struct mlxsw_reg_info *reg,
94 char *payload, void *priv);
95 enum mlxsw_event_trap_id trap_id;
96};
97
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98int mlxsw_core_rx_listener_register(struct mlxsw_core *mlxsw_core,
99 const struct mlxsw_rx_listener *rxl,
100 void *priv);
101void mlxsw_core_rx_listener_unregister(struct mlxsw_core *mlxsw_core,
102 const struct mlxsw_rx_listener *rxl,
103 void *priv);
104
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105int mlxsw_core_event_listener_register(struct mlxsw_core *mlxsw_core,
106 const struct mlxsw_event_listener *el,
107 void *priv);
108void mlxsw_core_event_listener_unregister(struct mlxsw_core *mlxsw_core,
109 const struct mlxsw_event_listener *el,
110 void *priv);
111
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112typedef void mlxsw_reg_trans_cb_t(struct mlxsw_core *mlxsw_core, char *payload,
113 size_t payload_len, unsigned long cb_priv);
114
115int mlxsw_reg_trans_query(struct mlxsw_core *mlxsw_core,
116 const struct mlxsw_reg_info *reg, char *payload,
117 struct list_head *bulk_list,
118 mlxsw_reg_trans_cb_t *cb, unsigned long cb_priv);
119int mlxsw_reg_trans_write(struct mlxsw_core *mlxsw_core,
120 const struct mlxsw_reg_info *reg, char *payload,
121 struct list_head *bulk_list,
122 mlxsw_reg_trans_cb_t *cb, unsigned long cb_priv);
123int mlxsw_reg_trans_bulk_wait(struct list_head *bulk_list);
124
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125int mlxsw_reg_query(struct mlxsw_core *mlxsw_core,
126 const struct mlxsw_reg_info *reg, char *payload);
127int mlxsw_reg_write(struct mlxsw_core *mlxsw_core,
128 const struct mlxsw_reg_info *reg, char *payload);
129
93c1edb2 130struct mlxsw_rx_info {
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131 bool is_lag;
132 union {
133 u16 sys_port;
134 u16 lag_id;
135 } u;
136 u8 lag_port_index;
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137 int trap_id;
138};
139
140void mlxsw_core_skb_receive(struct mlxsw_core *mlxsw_core, struct sk_buff *skb,
141 struct mlxsw_rx_info *rx_info);
142
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143void mlxsw_core_lag_mapping_set(struct mlxsw_core *mlxsw_core,
144 u16 lag_id, u8 port_index, u8 local_port);
145u8 mlxsw_core_lag_mapping_get(struct mlxsw_core *mlxsw_core,
146 u16 lag_id, u8 port_index);
147void mlxsw_core_lag_mapping_clear(struct mlxsw_core *mlxsw_core,
148 u16 lag_id, u8 local_port);
149
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150struct mlxsw_core_port {
151 struct devlink_port devlink_port;
152};
153
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154static inline void *
155mlxsw_core_port_driver_priv(struct mlxsw_core_port *mlxsw_core_port)
156{
157 /* mlxsw_core_port is ensured to always be the first field in driver
158 * port structure.
159 */
160 return mlxsw_core_port;
161}
162
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163int mlxsw_core_port_init(struct mlxsw_core *mlxsw_core,
164 struct mlxsw_core_port *mlxsw_core_port, u8 local_port,
165 struct net_device *dev, bool split, u32 split_group);
166void mlxsw_core_port_fini(struct mlxsw_core_port *mlxsw_core_port);
167
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168int mlxsw_core_schedule_dw(struct delayed_work *dwork, unsigned long delay);
169
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170#define MLXSW_CONFIG_PROFILE_SWID_COUNT 8
171
172struct mlxsw_swid_config {
173 u8 used_type:1,
174 used_properties:1;
175 u8 type;
176 u8 properties;
177};
178
179struct mlxsw_config_profile {
180 u16 used_max_vepa_channels:1,
181 used_max_lag:1,
182 used_max_port_per_lag:1,
183 used_max_mid:1,
184 used_max_pgt:1,
185 used_max_system_port:1,
186 used_max_vlan_groups:1,
187 used_max_regions:1,
188 used_flood_tables:1,
189 used_flood_mode:1,
190 used_max_ib_mc:1,
191 used_max_pkey:1,
192 used_ar_sec:1,
193 used_adaptive_routing_group_cap:1;
194 u8 max_vepa_channels;
195 u16 max_lag;
196 u16 max_port_per_lag;
197 u16 max_mid;
198 u16 max_pgt;
199 u16 max_system_port;
200 u16 max_vlan_groups;
201 u16 max_regions;
202 u8 max_flood_tables;
203 u8 max_vid_flood_tables;
204 u8 flood_mode;
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205 u8 max_fid_offset_flood_tables;
206 u16 fid_offset_flood_table_size;
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207 u8 max_fid_flood_tables;
208 u16 fid_flood_table_size;
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209 u16 max_ib_mc;
210 u16 max_pkey;
211 u8 ar_sec;
212 u16 adaptive_routing_group_cap;
213 u8 arn;
214 struct mlxsw_swid_config swid_config[MLXSW_CONFIG_PROFILE_SWID_COUNT];
215};
216
217struct mlxsw_driver {
218 struct list_head list;
219 const char *kind;
220 struct module *owner;
221 size_t priv_size;
b2f10571 222 int (*init)(struct mlxsw_core *mlxsw_core,
93c1edb2 223 const struct mlxsw_bus_info *mlxsw_bus_info);
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224 void (*fini)(struct mlxsw_core *mlxsw_core);
225 int (*port_split)(struct mlxsw_core *mlxsw_core, u8 local_port,
226 unsigned int count);
227 int (*port_unsplit)(struct mlxsw_core *mlxsw_core, u8 local_port);
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228 int (*sb_pool_get)(struct mlxsw_core *mlxsw_core,
229 unsigned int sb_index, u16 pool_index,
230 struct devlink_sb_pool_info *pool_info);
231 int (*sb_pool_set)(struct mlxsw_core *mlxsw_core,
232 unsigned int sb_index, u16 pool_index, u32 size,
233 enum devlink_sb_threshold_type threshold_type);
234 int (*sb_port_pool_get)(struct mlxsw_core_port *mlxsw_core_port,
235 unsigned int sb_index, u16 pool_index,
236 u32 *p_threshold);
237 int (*sb_port_pool_set)(struct mlxsw_core_port *mlxsw_core_port,
238 unsigned int sb_index, u16 pool_index,
239 u32 threshold);
240 int (*sb_tc_pool_bind_get)(struct mlxsw_core_port *mlxsw_core_port,
241 unsigned int sb_index, u16 tc_index,
242 enum devlink_sb_pool_type pool_type,
243 u16 *p_pool_index, u32 *p_threshold);
244 int (*sb_tc_pool_bind_set)(struct mlxsw_core_port *mlxsw_core_port,
245 unsigned int sb_index, u16 tc_index,
246 enum devlink_sb_pool_type pool_type,
247 u16 pool_index, u32 threshold);
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248 int (*sb_occ_snapshot)(struct mlxsw_core *mlxsw_core,
249 unsigned int sb_index);
250 int (*sb_occ_max_clear)(struct mlxsw_core *mlxsw_core,
251 unsigned int sb_index);
252 int (*sb_occ_port_pool_get)(struct mlxsw_core_port *mlxsw_core_port,
253 unsigned int sb_index, u16 pool_index,
254 u32 *p_cur, u32 *p_max);
255 int (*sb_occ_tc_port_bind_get)(struct mlxsw_core_port *mlxsw_core_port,
256 unsigned int sb_index, u16 tc_index,
257 enum devlink_sb_pool_type pool_type,
258 u32 *p_cur, u32 *p_max);
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259 void (*txhdr_construct)(struct sk_buff *skb,
260 const struct mlxsw_tx_info *tx_info);
261 u8 txhdr_len;
262 const struct mlxsw_config_profile *profile;
263};
264
265struct mlxsw_bus {
266 const char *kind;
267 int (*init)(void *bus_priv, struct mlxsw_core *mlxsw_core,
268 const struct mlxsw_config_profile *profile);
269 void (*fini)(void *bus_priv);
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270 bool (*skb_transmit_busy)(void *bus_priv,
271 const struct mlxsw_tx_info *tx_info);
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272 int (*skb_transmit)(void *bus_priv, struct sk_buff *skb,
273 const struct mlxsw_tx_info *tx_info);
274 int (*cmd_exec)(void *bus_priv, u16 opcode, u8 opcode_mod,
275 u32 in_mod, bool out_mbox_direct,
276 char *in_mbox, size_t in_mbox_size,
277 char *out_mbox, size_t out_mbox_size,
278 u8 *p_status);
279};
280
281struct mlxsw_bus_info {
282 const char *device_kind;
283 const char *device_name;
284 struct device *dev;
285 struct {
286 u16 major;
287 u16 minor;
288 u16 subminor;
289 } fw_rev;
290 u8 vsd[MLXSW_CMD_BOARDINFO_VSD_LEN];
291 u8 psid[MLXSW_CMD_BOARDINFO_PSID_LEN];
292};
293
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294struct mlxsw_hwmon;
295
296#ifdef CONFIG_MLXSW_CORE_HWMON
297
298int mlxsw_hwmon_init(struct mlxsw_core *mlxsw_core,
299 const struct mlxsw_bus_info *mlxsw_bus_info,
300 struct mlxsw_hwmon **p_hwmon);
301void mlxsw_hwmon_fini(struct mlxsw_hwmon *mlxsw_hwmon);
302
303#else
304
305static inline int mlxsw_hwmon_init(struct mlxsw_core *mlxsw_core,
306 const struct mlxsw_bus_info *mlxsw_bus_info,
307 struct mlxsw_hwmon **p_hwmon)
308{
309 return 0;
310}
311
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312#endif
313
93c1edb2 314#endif