1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
2 /* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */
3
4 #ifndef _MLXSW_CORE_H
5 #define _MLXSW_CORE_H
6
7 #include <linux/module.h>
8 #include <linux/device.h>
9 #include <linux/slab.h>
10 #include <linux/gfp.h>
11 #include <linux/types.h>
12 #include <linux/skbuff.h>
13 #include <linux/workqueue.h>
14 #include <net/devlink.h>
15
16 #include "trap.h"
17 #include "reg.h"
18 #include "cmd.h"
19 #include "resources.h"
20
21 struct mlxsw_core;
22 struct mlxsw_core_port;
23 struct mlxsw_driver;
24 struct mlxsw_bus;
25 struct mlxsw_bus_info;
26
27 unsigned int mlxsw_core_max_ports(const struct mlxsw_core *mlxsw_core);
28
29 void *mlxsw_core_driver_priv(struct mlxsw_core *mlxsw_core);
30
31 int mlxsw_core_driver_register(struct mlxsw_driver *mlxsw_driver);
32 void mlxsw_core_driver_unregister(struct mlxsw_driver *mlxsw_driver);
33
34 int mlxsw_core_bus_device_register(const struct mlxsw_bus_info *mlxsw_bus_info,
35 const struct mlxsw_bus *mlxsw_bus,
36 void *bus_priv, bool reload,
37 struct devlink *devlink);
38 void mlxsw_core_bus_device_unregister(struct mlxsw_core *mlxsw_core, bool reload);
39
40 struct mlxsw_tx_info {
41 u8 local_port;
42 bool is_emad;
43 };
44
45 bool mlxsw_core_skb_transmit_busy(struct mlxsw_core *mlxsw_core,
46 const struct mlxsw_tx_info *tx_info);
47 int mlxsw_core_skb_transmit(struct mlxsw_core *mlxsw_core, struct sk_buff *skb,
48 const struct mlxsw_tx_info *tx_info);
49
50 struct mlxsw_rx_listener {
51 void (*func)(struct sk_buff *skb, u8 local_port, void *priv);
52 u8 local_port;
53 u16 trap_id;
54 enum mlxsw_reg_hpkt_action action;
55 };
56
57 struct mlxsw_event_listener {
58 void (*func)(const struct mlxsw_reg_info *reg,
59 char *payload, void *priv);
60 enum mlxsw_event_trap_id trap_id;
61 };
62
63 struct mlxsw_listener {
64 u16 trap_id;
65 union {
66 struct mlxsw_rx_listener rx_listener;
67 struct mlxsw_event_listener event_listener;
68 } u;
69 enum mlxsw_reg_hpkt_action action;
70 enum mlxsw_reg_hpkt_action unreg_action;
71 u8 trap_group;
72 bool is_ctrl; /* should go via control buffer or not */
73 bool is_event;
74 };
75
76 #define MLXSW_RXL(_func, _trap_id, _action, _is_ctrl, _trap_group, \
77 _unreg_action) \
78 { \
79 .trap_id = MLXSW_TRAP_ID_##_trap_id, \
80 .u.rx_listener = \
81 { \
82 .func = _func, \
83 .local_port = MLXSW_PORT_DONT_CARE, \
84 .trap_id = MLXSW_TRAP_ID_##_trap_id, \
85 }, \
86 .action = MLXSW_REG_HPKT_ACTION_##_action, \
87 .unreg_action = MLXSW_REG_HPKT_ACTION_##_unreg_action, \
88 .trap_group = MLXSW_REG_HTGT_TRAP_GROUP_##_trap_group, \
89 .is_ctrl = _is_ctrl, \
90 .is_event = false, \
91 }
92
93 #define MLXSW_EVENTL(_func, _trap_id, _trap_group) \
94 { \
95 .trap_id = MLXSW_TRAP_ID_##_trap_id, \
96 .u.event_listener = \
97 { \
98 .func = _func, \
99 .trap_id = MLXSW_TRAP_ID_##_trap_id, \
100 }, \
101 .action = MLXSW_REG_HPKT_ACTION_TRAP_TO_CPU, \
102 .trap_group = MLXSW_REG_HTGT_TRAP_GROUP_##_trap_group, \
103 .is_ctrl = false, \
104 .is_event = true, \
105 }
106
107 int mlxsw_core_rx_listener_register(struct mlxsw_core *mlxsw_core,
108 const struct mlxsw_rx_listener *rxl,
109 void *priv);
110 void mlxsw_core_rx_listener_unregister(struct mlxsw_core *mlxsw_core,
111 const struct mlxsw_rx_listener *rxl,
112 void *priv);
113
114 int mlxsw_core_event_listener_register(struct mlxsw_core *mlxsw_core,
115 const struct mlxsw_event_listener *el,
116 void *priv);
117 void mlxsw_core_event_listener_unregister(struct mlxsw_core *mlxsw_core,
118 const struct mlxsw_event_listener *el,
119 void *priv);
120
121 int mlxsw_core_trap_register(struct mlxsw_core *mlxsw_core,
122 const struct mlxsw_listener *listener,
123 void *priv);
124 void mlxsw_core_trap_unregister(struct mlxsw_core *mlxsw_core,
125 const struct mlxsw_listener *listener,
126 void *priv);
127
128 typedef void mlxsw_reg_trans_cb_t(struct mlxsw_core *mlxsw_core, char *payload,
129 size_t payload_len, unsigned long cb_priv);
130
131 int mlxsw_reg_trans_query(struct mlxsw_core *mlxsw_core,
132 const struct mlxsw_reg_info *reg, char *payload,
133 struct list_head *bulk_list,
134 mlxsw_reg_trans_cb_t *cb, unsigned long cb_priv);
135 int mlxsw_reg_trans_write(struct mlxsw_core *mlxsw_core,
136 const struct mlxsw_reg_info *reg, char *payload,
137 struct list_head *bulk_list,
138 mlxsw_reg_trans_cb_t *cb, unsigned long cb_priv);
139 int mlxsw_reg_trans_bulk_wait(struct list_head *bulk_list);
140
141 int mlxsw_reg_query(struct mlxsw_core *mlxsw_core,
142 const struct mlxsw_reg_info *reg, char *payload);
143 int mlxsw_reg_write(struct mlxsw_core *mlxsw_core,
144 const struct mlxsw_reg_info *reg, char *payload);
145
146 struct mlxsw_rx_info {
147 bool is_lag;
148 union {
149 u16 sys_port;
150 u16 lag_id;
151 } u;
152 u8 lag_port_index;
153 int trap_id;
154 };
155
156 void mlxsw_core_skb_receive(struct mlxsw_core *mlxsw_core, struct sk_buff *skb,
157 struct mlxsw_rx_info *rx_info);
158
159 void mlxsw_core_lag_mapping_set(struct mlxsw_core *mlxsw_core,
160 u16 lag_id, u8 port_index, u8 local_port);
161 u8 mlxsw_core_lag_mapping_get(struct mlxsw_core *mlxsw_core,
162 u16 lag_id, u8 port_index);
163 void mlxsw_core_lag_mapping_clear(struct mlxsw_core *mlxsw_core,
164 u16 lag_id, u8 local_port);
165
166 void *mlxsw_core_port_driver_priv(struct mlxsw_core_port *mlxsw_core_port);
167 int mlxsw_core_port_init(struct mlxsw_core *mlxsw_core, u8 local_port);
168 void mlxsw_core_port_fini(struct mlxsw_core *mlxsw_core, u8 local_port);
169 void mlxsw_core_port_eth_set(struct mlxsw_core *mlxsw_core, u8 local_port,
170 void *port_driver_priv, struct net_device *dev,
171 u32 port_number, bool split,
172 u32 split_port_subnumber);
173 void mlxsw_core_port_ib_set(struct mlxsw_core *mlxsw_core, u8 local_port,
174 void *port_driver_priv);
175 void mlxsw_core_port_clear(struct mlxsw_core *mlxsw_core, u8 local_port,
176 void *port_driver_priv);
177 enum devlink_port_type mlxsw_core_port_type_get(struct mlxsw_core *mlxsw_core,
178 u8 local_port);
179 int mlxsw_core_port_get_phys_port_name(struct mlxsw_core *mlxsw_core,
180 u8 local_port, char *name, size_t len);
181
182 int mlxsw_core_schedule_dw(struct delayed_work *dwork, unsigned long delay);
183 bool mlxsw_core_schedule_work(struct work_struct *work);
184 void mlxsw_core_flush_owq(void);
185
186 #define MLXSW_CONFIG_PROFILE_SWID_COUNT 8
187
188 struct mlxsw_swid_config {
189 u8 used_type:1,
190 used_properties:1;
191 u8 type;
192 u8 properties;
193 };
194
195 struct mlxsw_config_profile {
196 u16 used_max_vepa_channels:1,
197 used_max_mid:1,
198 used_max_pgt:1,
199 used_max_system_port:1,
200 used_max_vlan_groups:1,
201 used_max_regions:1,
202 used_flood_tables:1,
203 used_flood_mode:1,
204 used_max_ib_mc:1,
205 used_max_pkey:1,
206 used_ar_sec:1,
207 used_adaptive_routing_group_cap:1,
208 used_kvd_sizes:1;
209 u8 max_vepa_channels;
210 u16 max_mid;
211 u16 max_pgt;
212 u16 max_system_port;
213 u16 max_vlan_groups;
214 u16 max_regions;
215 u8 max_flood_tables;
216 u8 max_vid_flood_tables;
217 u8 flood_mode;
218 u8 max_fid_offset_flood_tables;
219 u16 fid_offset_flood_table_size;
220 u8 max_fid_flood_tables;
221 u16 fid_flood_table_size;
222 u16 max_ib_mc;
223 u16 max_pkey;
224 u8 ar_sec;
225 u16 adaptive_routing_group_cap;
226 u8 arn;
227 u32 kvd_linear_size;
228 u8 kvd_hash_single_parts;
229 u8 kvd_hash_double_parts;
230 struct mlxsw_swid_config swid_config[MLXSW_CONFIG_PROFILE_SWID_COUNT];
231 };
232
233 struct mlxsw_driver {
234 struct list_head list;
235 const char *kind;
236 size_t priv_size;
237 int (*init)(struct mlxsw_core *mlxsw_core,
238 const struct mlxsw_bus_info *mlxsw_bus_info);
239 void (*fini)(struct mlxsw_core *mlxsw_core);
240 int (*basic_trap_groups_set)(struct mlxsw_core *mlxsw_core);
241 int (*port_type_set)(struct mlxsw_core *mlxsw_core, u8 local_port,
242 enum devlink_port_type new_type);
243 int (*port_split)(struct mlxsw_core *mlxsw_core, u8 local_port,
244 unsigned int count, struct netlink_ext_ack *extack);
245 int (*port_unsplit)(struct mlxsw_core *mlxsw_core, u8 local_port,
246 struct netlink_ext_ack *extack);
247 int (*sb_pool_get)(struct mlxsw_core *mlxsw_core,
248 unsigned int sb_index, u16 pool_index,
249 struct devlink_sb_pool_info *pool_info);
250 int (*sb_pool_set)(struct mlxsw_core *mlxsw_core,
251 unsigned int sb_index, u16 pool_index, u32 size,
252 enum devlink_sb_threshold_type threshold_type);
253 int (*sb_port_pool_get)(struct mlxsw_core_port *mlxsw_core_port,
254 unsigned int sb_index, u16 pool_index,
255 u32 *p_threshold);
256 int (*sb_port_pool_set)(struct mlxsw_core_port *mlxsw_core_port,
257 unsigned int sb_index, u16 pool_index,
258 u32 threshold);
259 int (*sb_tc_pool_bind_get)(struct mlxsw_core_port *mlxsw_core_port,
260 unsigned int sb_index, u16 tc_index,
261 enum devlink_sb_pool_type pool_type,
262 u16 *p_pool_index, u32 *p_threshold);
263 int (*sb_tc_pool_bind_set)(struct mlxsw_core_port *mlxsw_core_port,
264 unsigned int sb_index, u16 tc_index,
265 enum devlink_sb_pool_type pool_type,
266 u16 pool_index, u32 threshold);
267 int (*sb_occ_snapshot)(struct mlxsw_core *mlxsw_core,
268 unsigned int sb_index);
269 int (*sb_occ_max_clear)(struct mlxsw_core *mlxsw_core,
270 unsigned int sb_index);
271 int (*sb_occ_port_pool_get)(struct mlxsw_core_port *mlxsw_core_port,
272 unsigned int sb_index, u16 pool_index,
273 u32 *p_cur, u32 *p_max);
274 int (*sb_occ_tc_port_bind_get)(struct mlxsw_core_port *mlxsw_core_port,
275 unsigned int sb_index, u16 tc_index,
276 enum devlink_sb_pool_type pool_type,
277 u32 *p_cur, u32 *p_max);
278 void (*txhdr_construct)(struct sk_buff *skb,
279 const struct mlxsw_tx_info *tx_info);
280 int (*resources_register)(struct mlxsw_core *mlxsw_core);
281 int (*kvd_sizes_get)(struct mlxsw_core *mlxsw_core,
282 const struct mlxsw_config_profile *profile,
283 u64 *p_single_size, u64 *p_double_size,
284 u64 *p_linear_size);
285 u8 txhdr_len;
286 const struct mlxsw_config_profile *profile;
287 bool res_query_enabled;
288 };
289
290 int mlxsw_core_kvd_sizes_get(struct mlxsw_core *mlxsw_core,
291 const struct mlxsw_config_profile *profile,
292 u64 *p_single_size, u64 *p_double_size,
293 u64 *p_linear_size);
294
295 bool mlxsw_core_res_valid(struct mlxsw_core *mlxsw_core,
296 enum mlxsw_res_id res_id);
297
298 #define MLXSW_CORE_RES_VALID(mlxsw_core, short_res_id) \
299 mlxsw_core_res_valid(mlxsw_core, MLXSW_RES_ID_##short_res_id)
300
301 u64 mlxsw_core_res_get(struct mlxsw_core *mlxsw_core,
302 enum mlxsw_res_id res_id);
303
304 #define MLXSW_CORE_RES_GET(mlxsw_core, short_res_id) \
305 mlxsw_core_res_get(mlxsw_core, MLXSW_RES_ID_##short_res_id)
306
307 #define MLXSW_BUS_F_TXRX BIT(0)
308 #define MLXSW_BUS_F_RESET BIT(1)
309
310 struct mlxsw_bus {
311 const char *kind;
312 int (*init)(void *bus_priv, struct mlxsw_core *mlxsw_core,
313 const struct mlxsw_config_profile *profile,
314 struct mlxsw_res *res);
315 void (*fini)(void *bus_priv);
316 bool (*skb_transmit_busy)(void *bus_priv,
317 const struct mlxsw_tx_info *tx_info);
318 int (*skb_transmit)(void *bus_priv, struct sk_buff *skb,
319 const struct mlxsw_tx_info *tx_info);
320 int (*cmd_exec)(void *bus_priv, u16 opcode, u8 opcode_mod,
321 u32 in_mod, bool out_mbox_direct,
322 char *in_mbox, size_t in_mbox_size,
323 char *out_mbox, size_t out_mbox_size,
324 u8 *p_status);
325 u8 features;
326 };
327
328 struct mlxsw_fw_rev {
329 u16 major;
330 u16 minor;
331 u16 subminor;
332 u16 can_reset_minor;
333 };
334
335 struct mlxsw_bus_info {
336 const char *device_kind;
337 const char *device_name;
338 struct device *dev;
339 struct mlxsw_fw_rev fw_rev;
340 u8 vsd[MLXSW_CMD_BOARDINFO_VSD_LEN];
341 u8 psid[MLXSW_CMD_BOARDINFO_PSID_LEN];
342 };
343
344 struct mlxsw_hwmon;
345
346 #ifdef CONFIG_MLXSW_CORE_HWMON
347
348 int mlxsw_hwmon_init(struct mlxsw_core *mlxsw_core,
349 const struct mlxsw_bus_info *mlxsw_bus_info,
350 struct mlxsw_hwmon **p_hwmon);
351 void mlxsw_hwmon_fini(struct mlxsw_hwmon *mlxsw_hwmon);
352
353 #else
354
mlxsw_hwmon_init(struct mlxsw_core * mlxsw_core,const struct mlxsw_bus_info * mlxsw_bus_info,struct mlxsw_hwmon ** p_hwmon)355 static inline int mlxsw_hwmon_init(struct mlxsw_core *mlxsw_core,
356 const struct mlxsw_bus_info *mlxsw_bus_info,
357 struct mlxsw_hwmon **p_hwmon)
358 {
359 return 0;
360 }
361
mlxsw_hwmon_fini(struct mlxsw_hwmon * mlxsw_hwmon)362 static inline void mlxsw_hwmon_fini(struct mlxsw_hwmon *mlxsw_hwmon)
363 {
364 }
365
366 #endif
367
368 struct mlxsw_thermal;
369
370 #ifdef CONFIG_MLXSW_CORE_THERMAL
371
372 int mlxsw_thermal_init(struct mlxsw_core *mlxsw_core,
373 const struct mlxsw_bus_info *mlxsw_bus_info,
374 struct mlxsw_thermal **p_thermal);
375 void mlxsw_thermal_fini(struct mlxsw_thermal *thermal);
376
377 #else
378
mlxsw_thermal_init(struct mlxsw_core * mlxsw_core,const struct mlxsw_bus_info * mlxsw_bus_info,struct mlxsw_thermal ** p_thermal)379 static inline int mlxsw_thermal_init(struct mlxsw_core *mlxsw_core,
380 const struct mlxsw_bus_info *mlxsw_bus_info,
381 struct mlxsw_thermal **p_thermal)
382 {
383 return 0;
384 }
385
mlxsw_thermal_fini(struct mlxsw_thermal * thermal)386 static inline void mlxsw_thermal_fini(struct mlxsw_thermal *thermal)
387 {
388 }
389
390 #endif
391
392 #endif
393
