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 int mlxsw_reg_query(struct mlxsw_core *mlxsw_core,
113 const struct mlxsw_reg_info *reg, char *payload);
114 int mlxsw_reg_write(struct mlxsw_core *mlxsw_core,
115 const struct mlxsw_reg_info *reg, char *payload);
117 struct mlxsw_rx_info {
127 void mlxsw_core_skb_receive(struct mlxsw_core *mlxsw_core, struct sk_buff *skb,
128 struct mlxsw_rx_info *rx_info);
130 void mlxsw_core_lag_mapping_set(struct mlxsw_core *mlxsw_core,
131 u16 lag_id, u8 port_index, u8 local_port);
132 u8 mlxsw_core_lag_mapping_get(struct mlxsw_core *mlxsw_core,
133 u16 lag_id, u8 port_index);
134 void mlxsw_core_lag_mapping_clear(struct mlxsw_core *mlxsw_core,
135 u16 lag_id, u8 local_port);
137 struct mlxsw_core_port {
138 struct devlink_port devlink_port;
142 mlxsw_core_port_driver_priv(struct mlxsw_core_port *mlxsw_core_port)
144 /* mlxsw_core_port is ensured to always be the first field in driver
147 return mlxsw_core_port;
150 int mlxsw_core_port_init(struct mlxsw_core *mlxsw_core,
151 struct mlxsw_core_port *mlxsw_core_port, u8 local_port,
152 struct net_device *dev, bool split, u32 split_group);
153 void mlxsw_core_port_fini(struct mlxsw_core_port *mlxsw_core_port);
155 int mlxsw_core_schedule_dw(struct delayed_work *dwork, unsigned long delay);
157 #define MLXSW_CONFIG_PROFILE_SWID_COUNT 8
159 struct mlxsw_swid_config {
166 struct mlxsw_config_profile {
167 u16 used_max_vepa_channels:1,
169 used_max_port_per_lag:1,
172 used_max_system_port:1,
173 used_max_vlan_groups:1,
180 used_adaptive_routing_group_cap:1;
181 u8 max_vepa_channels;
183 u16 max_port_per_lag;
190 u8 max_vid_flood_tables;
192 u8 max_fid_offset_flood_tables;
193 u16 fid_offset_flood_table_size;
194 u8 max_fid_flood_tables;
195 u16 fid_flood_table_size;
199 u16 adaptive_routing_group_cap;
201 struct mlxsw_swid_config swid_config[MLXSW_CONFIG_PROFILE_SWID_COUNT];
204 struct mlxsw_driver {
205 struct list_head list;
207 struct module *owner;
209 int (*init)(struct mlxsw_core *mlxsw_core,
210 const struct mlxsw_bus_info *mlxsw_bus_info);
211 void (*fini)(struct mlxsw_core *mlxsw_core);
212 int (*port_split)(struct mlxsw_core *mlxsw_core, u8 local_port,
214 int (*port_unsplit)(struct mlxsw_core *mlxsw_core, u8 local_port);
215 int (*sb_pool_get)(struct mlxsw_core *mlxsw_core,
216 unsigned int sb_index, u16 pool_index,
217 struct devlink_sb_pool_info *pool_info);
218 int (*sb_pool_set)(struct mlxsw_core *mlxsw_core,
219 unsigned int sb_index, u16 pool_index, u32 size,
220 enum devlink_sb_threshold_type threshold_type);
221 int (*sb_port_pool_get)(struct mlxsw_core_port *mlxsw_core_port,
222 unsigned int sb_index, u16 pool_index,
224 int (*sb_port_pool_set)(struct mlxsw_core_port *mlxsw_core_port,
225 unsigned int sb_index, u16 pool_index,
227 int (*sb_tc_pool_bind_get)(struct mlxsw_core_port *mlxsw_core_port,
228 unsigned int sb_index, u16 tc_index,
229 enum devlink_sb_pool_type pool_type,
230 u16 *p_pool_index, u32 *p_threshold);
231 int (*sb_tc_pool_bind_set)(struct mlxsw_core_port *mlxsw_core_port,
232 unsigned int sb_index, u16 tc_index,
233 enum devlink_sb_pool_type pool_type,
234 u16 pool_index, u32 threshold);
235 int (*sb_occ_snapshot)(struct mlxsw_core *mlxsw_core,
236 unsigned int sb_index);
237 int (*sb_occ_max_clear)(struct mlxsw_core *mlxsw_core,
238 unsigned int sb_index);
239 int (*sb_occ_port_pool_get)(struct mlxsw_core_port *mlxsw_core_port,
240 unsigned int sb_index, u16 pool_index,
241 u32 *p_cur, u32 *p_max);
242 int (*sb_occ_tc_port_bind_get)(struct mlxsw_core_port *mlxsw_core_port,
243 unsigned int sb_index, u16 tc_index,
244 enum devlink_sb_pool_type pool_type,
245 u32 *p_cur, u32 *p_max);
246 void (*txhdr_construct)(struct sk_buff *skb,
247 const struct mlxsw_tx_info *tx_info);
249 const struct mlxsw_config_profile *profile;
254 int (*init)(void *bus_priv, struct mlxsw_core *mlxsw_core,
255 const struct mlxsw_config_profile *profile);
256 void (*fini)(void *bus_priv);
257 bool (*skb_transmit_busy)(void *bus_priv,
258 const struct mlxsw_tx_info *tx_info);
259 int (*skb_transmit)(void *bus_priv, struct sk_buff *skb,
260 const struct mlxsw_tx_info *tx_info);
261 int (*cmd_exec)(void *bus_priv, u16 opcode, u8 opcode_mod,
262 u32 in_mod, bool out_mbox_direct,
263 char *in_mbox, size_t in_mbox_size,
264 char *out_mbox, size_t out_mbox_size,
268 struct mlxsw_bus_info {
269 const char *device_kind;
270 const char *device_name;
277 u8 vsd[MLXSW_CMD_BOARDINFO_VSD_LEN];
278 u8 psid[MLXSW_CMD_BOARDINFO_PSID_LEN];
283 #ifdef CONFIG_MLXSW_CORE_HWMON
285 int mlxsw_hwmon_init(struct mlxsw_core *mlxsw_core,
286 const struct mlxsw_bus_info *mlxsw_bus_info,
287 struct mlxsw_hwmon **p_hwmon);
288 void mlxsw_hwmon_fini(struct mlxsw_hwmon *mlxsw_hwmon);
292 static inline int mlxsw_hwmon_init(struct mlxsw_core *mlxsw_core,
293 const struct mlxsw_bus_info *mlxsw_bus_info,
294 struct mlxsw_hwmon **p_hwmon)