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
);
90 enum mlxsw_reg_hpkt_action action
;
93 struct mlxsw_event_listener
{
94 void (*func
)(const struct mlxsw_reg_info
*reg
,
95 char *payload
, void *priv
);
96 enum mlxsw_event_trap_id trap_id
;
99 int mlxsw_core_rx_listener_register(struct mlxsw_core
*mlxsw_core
,
100 const struct mlxsw_rx_listener
*rxl
,
102 void mlxsw_core_rx_listener_unregister(struct mlxsw_core
*mlxsw_core
,
103 const struct mlxsw_rx_listener
*rxl
,
106 int mlxsw_core_event_listener_register(struct mlxsw_core
*mlxsw_core
,
107 const struct mlxsw_event_listener
*el
,
109 void mlxsw_core_event_listener_unregister(struct mlxsw_core
*mlxsw_core
,
110 const struct mlxsw_event_listener
*el
,
113 typedef void mlxsw_reg_trans_cb_t(struct mlxsw_core
*mlxsw_core
, char *payload
,
114 size_t payload_len
, unsigned long cb_priv
);
116 int mlxsw_reg_trans_query(struct mlxsw_core
*mlxsw_core
,
117 const struct mlxsw_reg_info
*reg
, char *payload
,
118 struct list_head
*bulk_list
,
119 mlxsw_reg_trans_cb_t
*cb
, unsigned long cb_priv
);
120 int mlxsw_reg_trans_write(struct mlxsw_core
*mlxsw_core
,
121 const struct mlxsw_reg_info
*reg
, char *payload
,
122 struct list_head
*bulk_list
,
123 mlxsw_reg_trans_cb_t
*cb
, unsigned long cb_priv
);
124 int mlxsw_reg_trans_bulk_wait(struct list_head
*bulk_list
);
126 int mlxsw_reg_query(struct mlxsw_core
*mlxsw_core
,
127 const struct mlxsw_reg_info
*reg
, char *payload
);
128 int mlxsw_reg_write(struct mlxsw_core
*mlxsw_core
,
129 const struct mlxsw_reg_info
*reg
, char *payload
);
131 struct mlxsw_rx_info
{
141 void mlxsw_core_skb_receive(struct mlxsw_core
*mlxsw_core
, struct sk_buff
*skb
,
142 struct mlxsw_rx_info
*rx_info
);
144 void mlxsw_core_lag_mapping_set(struct mlxsw_core
*mlxsw_core
,
145 u16 lag_id
, u8 port_index
, u8 local_port
);
146 u8
mlxsw_core_lag_mapping_get(struct mlxsw_core
*mlxsw_core
,
147 u16 lag_id
, u8 port_index
);
148 void mlxsw_core_lag_mapping_clear(struct mlxsw_core
*mlxsw_core
,
149 u16 lag_id
, u8 local_port
);
151 struct mlxsw_core_port
{
152 struct devlink_port devlink_port
;
156 mlxsw_core_port_driver_priv(struct mlxsw_core_port
*mlxsw_core_port
)
158 /* mlxsw_core_port is ensured to always be the first field in driver
161 return mlxsw_core_port
;
164 int mlxsw_core_port_init(struct mlxsw_core
*mlxsw_core
,
165 struct mlxsw_core_port
*mlxsw_core_port
, u8 local_port
,
166 struct net_device
*dev
, bool split
, u32 split_group
);
167 void mlxsw_core_port_fini(struct mlxsw_core_port
*mlxsw_core_port
);
169 int mlxsw_core_schedule_dw(struct delayed_work
*dwork
, unsigned long delay
);
171 #define MLXSW_CONFIG_PROFILE_SWID_COUNT 8
173 struct mlxsw_swid_config
{
180 struct mlxsw_config_profile
{
181 u16 used_max_vepa_channels
:1,
183 used_max_port_per_lag
:1,
186 used_max_system_port
:1,
187 used_max_vlan_groups
:1,
194 used_adaptive_routing_group_cap
:1,
196 u8 max_vepa_channels
;
198 u16 max_port_per_lag
;
205 u8 max_vid_flood_tables
;
207 u8 max_fid_offset_flood_tables
;
208 u16 fid_offset_flood_table_size
;
209 u8 max_fid_flood_tables
;
210 u16 fid_flood_table_size
;
214 u16 adaptive_routing_group_cap
;
217 u32 kvd_hash_single_size
;
218 u32 kvd_hash_double_size
;
219 u8 resource_query_enable
;
220 struct mlxsw_swid_config swid_config
[MLXSW_CONFIG_PROFILE_SWID_COUNT
];
223 struct mlxsw_driver
{
224 struct list_head list
;
226 struct module
*owner
;
228 int (*init
)(struct mlxsw_core
*mlxsw_core
,
229 const struct mlxsw_bus_info
*mlxsw_bus_info
);
230 void (*fini
)(struct mlxsw_core
*mlxsw_core
);
231 int (*port_split
)(struct mlxsw_core
*mlxsw_core
, u8 local_port
,
233 int (*port_unsplit
)(struct mlxsw_core
*mlxsw_core
, u8 local_port
);
234 int (*sb_pool_get
)(struct mlxsw_core
*mlxsw_core
,
235 unsigned int sb_index
, u16 pool_index
,
236 struct devlink_sb_pool_info
*pool_info
);
237 int (*sb_pool_set
)(struct mlxsw_core
*mlxsw_core
,
238 unsigned int sb_index
, u16 pool_index
, u32 size
,
239 enum devlink_sb_threshold_type threshold_type
);
240 int (*sb_port_pool_get
)(struct mlxsw_core_port
*mlxsw_core_port
,
241 unsigned int sb_index
, u16 pool_index
,
243 int (*sb_port_pool_set
)(struct mlxsw_core_port
*mlxsw_core_port
,
244 unsigned int sb_index
, u16 pool_index
,
246 int (*sb_tc_pool_bind_get
)(struct mlxsw_core_port
*mlxsw_core_port
,
247 unsigned int sb_index
, u16 tc_index
,
248 enum devlink_sb_pool_type pool_type
,
249 u16
*p_pool_index
, u32
*p_threshold
);
250 int (*sb_tc_pool_bind_set
)(struct mlxsw_core_port
*mlxsw_core_port
,
251 unsigned int sb_index
, u16 tc_index
,
252 enum devlink_sb_pool_type pool_type
,
253 u16 pool_index
, u32 threshold
);
254 int (*sb_occ_snapshot
)(struct mlxsw_core
*mlxsw_core
,
255 unsigned int sb_index
);
256 int (*sb_occ_max_clear
)(struct mlxsw_core
*mlxsw_core
,
257 unsigned int sb_index
);
258 int (*sb_occ_port_pool_get
)(struct mlxsw_core_port
*mlxsw_core_port
,
259 unsigned int sb_index
, u16 pool_index
,
260 u32
*p_cur
, u32
*p_max
);
261 int (*sb_occ_tc_port_bind_get
)(struct mlxsw_core_port
*mlxsw_core_port
,
262 unsigned int sb_index
, u16 tc_index
,
263 enum devlink_sb_pool_type pool_type
,
264 u32
*p_cur
, u32
*p_max
);
265 void (*txhdr_construct
)(struct sk_buff
*skb
,
266 const struct mlxsw_tx_info
*tx_info
);
268 const struct mlxsw_config_profile
*profile
;
271 struct mlxsw_resources
{
276 struct mlxsw_resources
*mlxsw_core_resources_get(struct mlxsw_core
*mlxsw_core
);
280 int (*init
)(void *bus_priv
, struct mlxsw_core
*mlxsw_core
,
281 const struct mlxsw_config_profile
*profile
,
282 struct mlxsw_resources
*resources
);
283 void (*fini
)(void *bus_priv
);
284 bool (*skb_transmit_busy
)(void *bus_priv
,
285 const struct mlxsw_tx_info
*tx_info
);
286 int (*skb_transmit
)(void *bus_priv
, struct sk_buff
*skb
,
287 const struct mlxsw_tx_info
*tx_info
);
288 int (*cmd_exec
)(void *bus_priv
, u16 opcode
, u8 opcode_mod
,
289 u32 in_mod
, bool out_mbox_direct
,
290 char *in_mbox
, size_t in_mbox_size
,
291 char *out_mbox
, size_t out_mbox_size
,
295 struct mlxsw_bus_info
{
296 const char *device_kind
;
297 const char *device_name
;
304 u8 vsd
[MLXSW_CMD_BOARDINFO_VSD_LEN
];
305 u8 psid
[MLXSW_CMD_BOARDINFO_PSID_LEN
];
310 #ifdef CONFIG_MLXSW_CORE_HWMON
312 int mlxsw_hwmon_init(struct mlxsw_core
*mlxsw_core
,
313 const struct mlxsw_bus_info
*mlxsw_bus_info
,
314 struct mlxsw_hwmon
**p_hwmon
);
315 void mlxsw_hwmon_fini(struct mlxsw_hwmon
*mlxsw_hwmon
);
319 static inline int mlxsw_hwmon_init(struct mlxsw_core
*mlxsw_core
,
320 const struct mlxsw_bus_info
*mlxsw_bus_info
,
321 struct mlxsw_hwmon
**p_hwmon
)