summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/mellanox/mlxsw/core.h
blob: 917be621c9043d44f6e282b858b000b3996686b3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
/* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */

#ifndef _MLXSW_CORE_H
#define _MLXSW_CORE_H

#include <linux/module.h>
#include <linux/device.h>
#include <linux/slab.h>
#include <linux/gfp.h>
#include <linux/types.h>
#include <linux/skbuff.h>
#include <linux/workqueue.h>
#include <net/devlink.h>

#include "trap.h"
#include "reg.h"
#include "cmd.h"
#include "resources.h"

struct mlxsw_core;
struct mlxsw_core_port;
struct mlxsw_driver;
struct mlxsw_bus;
struct mlxsw_bus_info;

unsigned int mlxsw_core_max_ports(const struct mlxsw_core *mlxsw_core);

void *mlxsw_core_driver_priv(struct mlxsw_core *mlxsw_core);

int mlxsw_core_driver_register(struct mlxsw_driver *mlxsw_driver);
void mlxsw_core_driver_unregister(struct mlxsw_driver *mlxsw_driver);

int mlxsw_core_bus_device_register(const struct mlxsw_bus_info *mlxsw_bus_info,
				   const struct mlxsw_bus *mlxsw_bus,
				   void *bus_priv, bool reload,
				   struct devlink *devlink);
void mlxsw_core_bus_device_unregister(struct mlxsw_core *mlxsw_core, bool reload);

struct mlxsw_tx_info {
	u8 local_port;
	bool is_emad;
};

bool mlxsw_core_skb_transmit_busy(struct mlxsw_core *mlxsw_core,
				  const struct mlxsw_tx_info *tx_info);
int mlxsw_core_skb_transmit(struct mlxsw_core *mlxsw_core, struct sk_buff *skb,
			    const struct mlxsw_tx_info *tx_info);

struct mlxsw_rx_listener {
	void (*func)(struct sk_buff *skb, u8 local_port, void *priv);
	u8 local_port;
	u16 trap_id;
	enum mlxsw_reg_hpkt_action action;
};

struct mlxsw_event_listener {
	void (*func)(const struct mlxsw_reg_info *reg,
		     char *payload, void *priv);
	enum mlxsw_event_trap_id trap_id;
};

struct mlxsw_listener {
	u16 trap_id;
	union {
		struct mlxsw_rx_listener rx_listener;
		struct mlxsw_event_listener event_listener;
	} u;
	enum mlxsw_reg_hpkt_action action;
	enum mlxsw_reg_hpkt_action unreg_action;
	u8 trap_group;
	bool is_ctrl; /* should go via control buffer or not */
	bool is_event;
};

#define MLXSW_RXL(_func, _trap_id, _action, _is_ctrl, _trap_group,	\
		  _unreg_action)					\
	{								\
		.trap_id = MLXSW_TRAP_ID_##_trap_id,			\
		.u.rx_listener =					\
		{							\
			.func = _func,					\
			.local_port = MLXSW_PORT_DONT_CARE,		\
			.trap_id = MLXSW_TRAP_ID_##_trap_id,		\
		},							\
		.action = MLXSW_REG_HPKT_ACTION_##_action,		\
		.unreg_action = MLXSW_REG_HPKT_ACTION_##_unreg_action,	\
		.trap_group = MLXSW_REG_HTGT_TRAP_GROUP_##_trap_group,	\
		.is_ctrl = _is_ctrl,					\
		.is_event = false,					\
	}

#define MLXSW_EVENTL(_func, _trap_id, _trap_group)			\
	{								\
		.trap_id = MLXSW_TRAP_ID_##_trap_id,			\
		.u.event_listener =					\
		{							\
			.func = _func,					\
			.trap_id = MLXSW_TRAP_ID_##_trap_id,		\
		},							\
		.action = MLXSW_REG_HPKT_ACTION_TRAP_TO_CPU,		\
		.trap_group = MLXSW_REG_HTGT_TRAP_GROUP_##_trap_group,	\
		.is_ctrl = false,					\
		.is_event = true,					\
	}

int mlxsw_core_rx_listener_register(struct mlxsw_core *mlxsw_core,
				    const struct mlxsw_rx_listener *rxl,
				    void *priv);
void mlxsw_core_rx_listener_unregister(struct mlxsw_core *mlxsw_core,
				       const struct mlxsw_rx_listener *rxl,
				       void *priv);

int mlxsw_core_event_listener_register(struct mlxsw_core *mlxsw_core,
				       const struct mlxsw_event_listener *el,
				       void *priv);
void mlxsw_core_event_listener_unregister(struct mlxsw_core *mlxsw_core,
					  const struct mlxsw_event_listener *el,
					  void *priv);

int mlxsw_core_trap_register(struct mlxsw_core *mlxsw_core,
			     const struct mlxsw_listener *listener,
			     void *priv);
void mlxsw_core_trap_unregister(struct mlxsw_core *mlxsw_core,
				const struct mlxsw_listener *listener,
				void *priv);

typedef void mlxsw_reg_trans_cb_t(struct mlxsw_core *mlxsw_core, char *payload,
				  size_t payload_len, unsigned long cb_priv);

int mlxsw_reg_trans_query(struct mlxsw_core *mlxsw_core,
			  const struct mlxsw_reg_info *reg, char *payload,
			  struct list_head *bulk_list,
			  mlxsw_reg_trans_cb_t *cb, unsigned long cb_priv);
int mlxsw_reg_trans_write(struct mlxsw_core *mlxsw_core,
			  const struct mlxsw_reg_info *reg, char *payload,
			  struct list_head *bulk_list,
			  mlxsw_reg_trans_cb_t *cb, unsigned long cb_priv);
int mlxsw_reg_trans_bulk_wait(struct list_head *bulk_list);

int mlxsw_reg_query(struct mlxsw_core *mlxsw_core,
		    const struct mlxsw_reg_info *reg, char *payload);
int mlxsw_reg_write(struct mlxsw_core *mlxsw_core,
		    const struct mlxsw_reg_info *reg, char *payload);

struct mlxsw_rx_info {
	bool is_lag;
	union {
		u16 sys_port;
		u16 lag_id;
	} u;
	u8 lag_port_index;
	int trap_id;
};

void mlxsw_core_skb_receive(struct mlxsw_core *mlxsw_core, struct sk_buff *skb,
			    struct mlxsw_rx_info *rx_info);

void mlxsw_core_lag_mapping_set(struct mlxsw_core *mlxsw_core,
				u16 lag_id, u8 port_index, u8 local_port);
u8 mlxsw_core_lag_mapping_get(struct mlxsw_core *mlxsw_core,
			      u16 lag_id, u8 port_index);
void mlxsw_core_lag_mapping_clear(struct mlxsw_core *mlxsw_core,
				  u16 lag_id, u8 local_port);

void *mlxsw_core_port_driver_priv(struct mlxsw_core_port *mlxsw_core_port);
int mlxsw_core_port_init(struct mlxsw_core *mlxsw_core, u8 local_port,
			 u32 port_number, bool split,
			 u32 split_port_subnumber,
			 const unsigned char *switch_id,
			 unsigned char switch_id_len);
void mlxsw_core_port_fini(struct mlxsw_core *mlxsw_core, u8 local_port);
void mlxsw_core_port_eth_set(struct mlxsw_core *mlxsw_core, u8 local_port,
			     void *port_driver_priv, struct net_device *dev);
void mlxsw_core_port_ib_set(struct mlxsw_core *mlxsw_core, u8 local_port,
			    void *port_driver_priv);
void mlxsw_core_port_clear(struct mlxsw_core *mlxsw_core, u8 local_port,
			   void *port_driver_priv);
enum devlink_port_type mlxsw_core_port_type_get(struct mlxsw_core *mlxsw_core,
						u8 local_port);
struct devlink_port *
mlxsw_core_port_devlink_port_get(struct mlxsw_core *mlxsw_core,
				 u8 local_port);

int mlxsw_core_schedule_dw(struct delayed_work *dwork, unsigned long delay);
bool mlxsw_core_schedule_work(struct work_struct *work);
void mlxsw_core_flush_owq(void);
int mlxsw_core_resources_query(struct mlxsw_core *mlxsw_core, char *mbox,
			       struct mlxsw_res *res);

#define MLXSW_CONFIG_PROFILE_SWID_COUNT 8

struct mlxsw_swid_config {
	u8	used_type:1,
		used_properties:1;
	u8	type;
	u8	properties;
};

struct mlxsw_config_profile {
	u16	used_max_vepa_channels:1,
		used_max_mid:1,
		used_max_pgt:1,
		used_max_system_port:1,
		used_max_vlan_groups:1,
		used_max_regions:1,
		used_flood_tables:1,
		used_flood_mode:1,
		used_max_ib_mc:1,
		used_max_pkey:1,
		used_ar_sec:1,
		used_adaptive_routing_group_cap:1,
		used_kvd_sizes:1;
	u8	max_vepa_channels;
	u16	max_mid;
	u16	max_pgt;
	u16	max_system_port;
	u16	max_vlan_groups;
	u16	max_regions;
	u8	max_flood_tables;
	u8	max_vid_flood_tables;
	u8	flood_mode;
	u8	max_fid_offset_flood_tables;
	u16	fid_offset_flood_table_size;
	u8	max_fid_flood_tables;
	u16	fid_flood_table_size;
	u16	max_ib_mc;
	u16	max_pkey;
	u8	ar_sec;
	u16	adaptive_routing_group_cap;
	u8	arn;
	u32	kvd_linear_size;
	u8	kvd_hash_single_parts;
	u8	kvd_hash_double_parts;
	struct mlxsw_swid_config swid_config[MLXSW_CONFIG_PROFILE_SWID_COUNT];
};

struct mlxsw_driver {
	struct list_head list;
	const char *kind;
	size_t priv_size;
	int (*init)(struct mlxsw_core *mlxsw_core,
		    const struct mlxsw_bus_info *mlxsw_bus_info);
	void (*fini)(struct mlxsw_core *mlxsw_core);
	int (*basic_trap_groups_set)(struct mlxsw_core *mlxsw_core);
	int (*port_type_set)(struct mlxsw_core *mlxsw_core, u8 local_port,
			     enum devlink_port_type new_type);
	int (*port_split)(struct mlxsw_core *mlxsw_core, u8 local_port,
			  unsigned int count, struct netlink_ext_ack *extack);
	int (*port_unsplit)(struct mlxsw_core *mlxsw_core, u8 local_port,
			    struct netlink_ext_ack *extack);
	int (*sb_pool_get)(struct mlxsw_core *mlxsw_core,
			   unsigned int sb_index, u16 pool_index,
			   struct devlink_sb_pool_info *pool_info);
	int (*sb_pool_set)(struct mlxsw_core *mlxsw_core,
			   unsigned int sb_index, u16 pool_index, u32 size,
			   enum devlink_sb_threshold_type threshold_type,
			   struct netlink_ext_ack *extack);
	int (*sb_port_pool_get)(struct mlxsw_core_port *mlxsw_core_port,
				unsigned int sb_index, u16 pool_index,
				u32 *p_threshold);
	int (*sb_port_pool_set)(struct mlxsw_core_port *mlxsw_core_port,
				unsigned int sb_index, u16 pool_index,
				u32 threshold, struct netlink_ext_ack *extack);
	int (*sb_tc_pool_bind_get)(struct mlxsw_core_port *mlxsw_core_port,
				   unsigned int sb_index, u16 tc_index,
				   enum devlink_sb_pool_type pool_type,
				   u16 *p_pool_index, u32 *p_threshold);
	int (*sb_tc_pool_bind_set)(struct mlxsw_core_port *mlxsw_core_port,
				   unsigned int sb_index, u16 tc_index,
				   enum devlink_sb_pool_type pool_type,
				   u16 pool_index, u32 threshold,
				   struct netlink_ext_ack *extack);
	int (*sb_occ_snapshot)(struct mlxsw_core *mlxsw_core,
			       unsigned int sb_index);
	int (*sb_occ_max_clear)(struct mlxsw_core *mlxsw_core,
				unsigned int sb_index);
	int (*sb_occ_port_pool_get)(struct mlxsw_core_port *mlxsw_core_port,
				    unsigned int sb_index, u16 pool_index,
				    u32 *p_cur, u32 *p_max);
	int (*sb_occ_tc_port_bind_get)(struct mlxsw_core_port *mlxsw_core_port,
				       unsigned int sb_index, u16 tc_index,
				       enum devlink_sb_pool_type pool_type,
				       u32 *p_cur, u32 *p_max);
	void (*txhdr_construct)(struct sk_buff *skb,
				const struct mlxsw_tx_info *tx_info);
	int (*resources_register)(struct mlxsw_core *mlxsw_core);
	int (*kvd_sizes_get)(struct mlxsw_core *mlxsw_core,
			     const struct mlxsw_config_profile *profile,
			     u64 *p_single_size, u64 *p_double_size,
			     u64 *p_linear_size);
	int (*params_register)(struct mlxsw_core *mlxsw_core);
	void (*params_unregister)(struct mlxsw_core *mlxsw_core);
	u8 txhdr_len;
	const struct mlxsw_config_profile *profile;
	bool res_query_enabled;
};

int mlxsw_core_kvd_sizes_get(struct mlxsw_core *mlxsw_core,
			     const struct mlxsw_config_profile *profile,
			     u64 *p_single_size, u64 *p_double_size,
			     u64 *p_linear_size);

void mlxsw_core_fw_flash_start(struct mlxsw_core *mlxsw_core);
void mlxsw_core_fw_flash_end(struct mlxsw_core *mlxsw_core);

bool mlxsw_core_res_valid(struct mlxsw_core *mlxsw_core,
			  enum mlxsw_res_id res_id);

#define MLXSW_CORE_RES_VALID(mlxsw_core, short_res_id)			\
	mlxsw_core_res_valid(mlxsw_core, MLXSW_RES_ID_##short_res_id)

u64 mlxsw_core_res_get(struct mlxsw_core *mlxsw_core,
		       enum mlxsw_res_id res_id);

#define MLXSW_CORE_RES_GET(mlxsw_core, short_res_id)			\
	mlxsw_core_res_get(mlxsw_core, MLXSW_RES_ID_##short_res_id)

#define MLXSW_BUS_F_TXRX	BIT(0)
#define MLXSW_BUS_F_RESET	BIT(1)

struct mlxsw_bus {
	const char *kind;
	int (*init)(void *bus_priv, struct mlxsw_core *mlxsw_core,
		    const struct mlxsw_config_profile *profile,
		    struct mlxsw_res *res);
	void (*fini)(void *bus_priv);
	bool (*skb_transmit_busy)(void *bus_priv,
				  const struct mlxsw_tx_info *tx_info);
	int (*skb_transmit)(void *bus_priv, struct sk_buff *skb,
			    const struct mlxsw_tx_info *tx_info);
	int (*cmd_exec)(void *bus_priv, u16 opcode, u8 opcode_mod,
			u32 in_mod, bool out_mbox_direct,
			char *in_mbox, size_t in_mbox_size,
			char *out_mbox, size_t out_mbox_size,
			u8 *p_status);
	u8 features;
};

struct mlxsw_fw_rev {
	u16 major;
	u16 minor;
	u16 subminor;
	u16 can_reset_minor;
};

struct mlxsw_bus_info {
	const char *device_kind;
	const char *device_name;
	struct device *dev;
	struct mlxsw_fw_rev fw_rev;
	u8 vsd[MLXSW_CMD_BOARDINFO_VSD_LEN];
	u8 psid[MLXSW_CMD_BOARDINFO_PSID_LEN];
	u8 low_frequency;
};

struct mlxsw_hwmon;

#ifdef CONFIG_MLXSW_CORE_HWMON

int mlxsw_hwmon_init(struct mlxsw_core *mlxsw_core,
		     const struct mlxsw_bus_info *mlxsw_bus_info,
		     struct mlxsw_hwmon **p_hwmon);
void mlxsw_hwmon_fini(struct mlxsw_hwmon *mlxsw_hwmon);

#else

static inline int mlxsw_hwmon_init(struct mlxsw_core *mlxsw_core,
				   const struct mlxsw_bus_info *mlxsw_bus_info,
				   struct mlxsw_hwmon **p_hwmon)
{
	return 0;
}

static inline void mlxsw_hwmon_fini(struct mlxsw_hwmon *mlxsw_hwmon)
{
}

#endif

struct mlxsw_thermal;

#ifdef CONFIG_MLXSW_CORE_THERMAL

int mlxsw_thermal_init(struct mlxsw_core *mlxsw_core,
		       const struct mlxsw_bus_info *mlxsw_bus_info,
		       struct mlxsw_thermal **p_thermal);
void mlxsw_thermal_fini(struct mlxsw_thermal *thermal);

#else

static inline int mlxsw_thermal_init(struct mlxsw_core *mlxsw_core,
				     const struct mlxsw_bus_info *mlxsw_bus_info,
				     struct mlxsw_thermal **p_thermal)
{
	return 0;
}

static inline void mlxsw_thermal_fini(struct mlxsw_thermal *thermal)
{
}

#endif

enum mlxsw_devlink_param_id {
	MLXSW_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
	MLXSW_DEVLINK_PARAM_ID_ACL_REGION_REHASH_INTERVAL,
};

#endif