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
)