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>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
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.
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.
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.
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>
46 #include <linux/workqueue.h>
47 #include <net/devlink.h>
54 #define MLXSW_MODULE_ALIAS_PREFIX "mlxsw-driver-"
55 #define MODULE_MLXSW_DRIVER_ALIAS(kind) \
56 MODULE_ALIAS(MLXSW_MODULE_ALIAS_PREFIX kind)
58 #define MLXSW_DEVICE_KIND_SWITCHX2 "switchx2"
59 #define MLXSW_DEVICE_KIND_SPECTRUM "spectrum"
64 struct mlxsw_bus_info;
66 void *mlxsw_core_driver_priv(struct mlxsw_core *mlxsw_core);
68 int mlxsw_core_driver_register(struct mlxsw_driver *mlxsw_driver);
69 void mlxsw_core_driver_unregister(struct mlxsw_driver *mlxsw_driver);
71 int mlxsw_core_bus_device_register(const struct mlxsw_bus_info *mlxsw_bus_info,
72 const struct mlxsw_bus *mlxsw_bus,
74 void mlxsw_core_bus_device_unregister(struct mlxsw_core *mlxsw_core);
76 struct mlxsw_tx_info {
81 bool mlxsw_core_skb_transmit_busy(struct mlxsw_core *mlxsw_core,
82 const struct mlxsw_tx_info *tx_info);
83 int mlxsw_core_skb_transmit(struct mlxsw_core *mlxsw_core, struct sk_buff *skb,
84 const struct mlxsw_tx_info *tx_info);
86 struct mlxsw_rx_listener {
87 void (*func)(struct sk_buff *skb, u8 local_port, void *priv);
92 struct 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;
98 int mlxsw_core_rx_listener_register(struct mlxsw_core *mlxsw_core,
99 const struct mlxsw_rx_listener *rxl,
101 void mlxsw_core_rx_listener_unregister(struct mlxsw_core *mlxsw_core,
102 const struct mlxsw_rx_listener *rxl,
105 int mlxsw_core_event_listener_register(struct mlxsw_core *mlxsw_core,
106 const struct mlxsw_event_listener *el,
108 void mlxsw_core_event_listener_unregister(struct mlxsw_core *mlxsw_core,
109 const struct mlxsw_event_listener *el,
112 typedef void mlxsw_reg_trans_cb_t(struct mlxsw_core *mlxsw_core, char *payload,
113 size_t payload_len, unsigned long cb_priv);
115 int 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);
119 int 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);
123 int mlxsw_reg_trans_bulk_wait(struct list_head *bulk_list);
125 int mlxsw_reg_query(struct mlxsw_core *mlxsw_core,
126 const struct mlxsw_reg_info *reg, char *payload);
127 int mlxsw_reg_write(struct mlxsw_core *mlxsw_core,
128 const struct mlxsw_reg_info *reg, char *payload);
130 struct mlxsw_rx_info {
140 void mlxsw_core_skb_receive(struct mlxsw_core *mlxsw_core, struct sk_buff *skb,
141 struct mlxsw_rx_info *rx_info);
143 void mlxsw_core_lag_mapping_set(struct mlxsw_core *mlxsw_core,
144 u16 lag_id, u8 port_index, u8 local_port);
145 u8 mlxsw_core_lag_mapping_get(struct mlxsw_core *mlxsw_core,
146 u16 lag_id, u8 port_index);
147 void mlxsw_core_lag_mapping_clear(struct mlxsw_core *mlxsw_core,
148 u16 lag_id, u8 local_port);
150 struct mlxsw_core_port {
151 struct devlink_port devlink_port;
155 mlxsw_core_port_driver_priv(struct mlxsw_core_port *mlxsw_core_port)
157 /* mlxsw_core_port is ensured to always be the first field in driver
160 return mlxsw_core_port;
163 int 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);
166 void mlxsw_core_port_fini(struct mlxsw_core_port *mlxsw_core_port);
168 int mlxsw_core_schedule_dw(struct delayed_work *dwork, unsigned long delay);
170 #define MLXSW_CONFIG_PROFILE_SWID_COUNT 8
172 struct mlxsw_swid_config {
179 struct mlxsw_config_profile {
180 u16 used_max_vepa_channels:1,
182 used_max_port_per_lag:1,
185 used_max_system_port:1,
186 used_max_vlan_groups:1,
193 used_adaptive_routing_group_cap:1,
195 u8 max_vepa_channels;
197 u16 max_port_per_lag;
204 u8 max_vid_flood_tables;
206 u8 max_fid_offset_flood_tables;
207 u16 fid_offset_flood_table_size;
208 u8 max_fid_flood_tables;
209 u16 fid_flood_table_size;
213 u16 adaptive_routing_group_cap;
216 u32 kvd_hash_single_size;
217 u32 kvd_hash_double_size;
218 u8 resource_query_enable;
219 struct mlxsw_swid_config swid_config[MLXSW_CONFIG_PROFILE_SWID_COUNT];
222 struct mlxsw_driver {
223 struct list_head list;
225 struct module *owner;
227 int (*init)(struct mlxsw_core *mlxsw_core,
228 const struct mlxsw_bus_info *mlxsw_bus_info);
229 void (*fini)(struct mlxsw_core *mlxsw_core);
230 int (*port_split)(struct mlxsw_core *mlxsw_core, u8 local_port,
232 int (*port_unsplit)(struct mlxsw_core *mlxsw_core, u8 local_port);
233 int (*sb_pool_get)(struct mlxsw_core *mlxsw_core,
234 unsigned int sb_index, u16 pool_index,
235 struct devlink_sb_pool_info *pool_info);
236 int (*sb_pool_set)(struct mlxsw_core *mlxsw_core,
237 unsigned int sb_index, u16 pool_index, u32 size,
238 enum devlink_sb_threshold_type threshold_type);
239 int (*sb_port_pool_get)(struct mlxsw_core_port *mlxsw_core_port,
240 unsigned int sb_index, u16 pool_index,
242 int (*sb_port_pool_set)(struct mlxsw_core_port *mlxsw_core_port,
243 unsigned int sb_index, u16 pool_index,
245 int (*sb_tc_pool_bind_get)(struct mlxsw_core_port *mlxsw_core_port,
246 unsigned int sb_index, u16 tc_index,
247 enum devlink_sb_pool_type pool_type,
248 u16 *p_pool_index, u32 *p_threshold);
249 int (*sb_tc_pool_bind_set)(struct mlxsw_core_port *mlxsw_core_port,
250 unsigned int sb_index, u16 tc_index,
251 enum devlink_sb_pool_type pool_type,
252 u16 pool_index, u32 threshold);
253 int (*sb_occ_snapshot)(struct mlxsw_core *mlxsw_core,
254 unsigned int sb_index);
255 int (*sb_occ_max_clear)(struct mlxsw_core *mlxsw_core,
256 unsigned int sb_index);
257 int (*sb_occ_port_pool_get)(struct mlxsw_core_port *mlxsw_core_port,
258 unsigned int sb_index, u16 pool_index,
259 u32 *p_cur, u32 *p_max);
260 int (*sb_occ_tc_port_bind_get)(struct mlxsw_core_port *mlxsw_core_port,
261 unsigned int sb_index, u16 tc_index,
262 enum devlink_sb_pool_type pool_type,
263 u32 *p_cur, u32 *p_max);
264 void (*txhdr_construct)(struct sk_buff *skb,
265 const struct mlxsw_tx_info *tx_info);
267 const struct mlxsw_config_profile *profile;
270 struct mlxsw_resources {
275 struct mlxsw_resources *mlxsw_core_resources_get(struct mlxsw_core *mlxsw_core);
279 int (*init)(void *bus_priv, struct mlxsw_core *mlxsw_core,
280 const struct mlxsw_config_profile *profile,
281 struct mlxsw_resources *resources);
282 void (*fini)(void *bus_priv);
283 bool (*skb_transmit_busy)(void *bus_priv,
284 const struct mlxsw_tx_info *tx_info);
285 int (*skb_transmit)(void *bus_priv, struct sk_buff *skb,
286 const struct mlxsw_tx_info *tx_info);
287 int (*cmd_exec)(void *bus_priv, u16 opcode, u8 opcode_mod,
288 u32 in_mod, bool out_mbox_direct,
289 char *in_mbox, size_t in_mbox_size,
290 char *out_mbox, size_t out_mbox_size,
294 struct mlxsw_bus_info {
295 const char *device_kind;
296 const char *device_name;
303 u8 vsd[MLXSW_CMD_BOARDINFO_VSD_LEN];
304 u8 psid[MLXSW_CMD_BOARDINFO_PSID_LEN];
309 #ifdef CONFIG_MLXSW_CORE_HWMON
311 int mlxsw_hwmon_init(struct mlxsw_core *mlxsw_core,
312 const struct mlxsw_bus_info *mlxsw_bus_info,
313 struct mlxsw_hwmon **p_hwmon);
314 void mlxsw_hwmon_fini(struct mlxsw_hwmon *mlxsw_hwmon);
318 static inline int mlxsw_hwmon_init(struct mlxsw_core *mlxsw_core,
319 const struct mlxsw_bus_info *mlxsw_bus_info,
320 struct mlxsw_hwmon **p_hwmon)