1 /* 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> 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are met: 10 * 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. 19 * 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. 23 * 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. 35 */ 36 37 #ifndef _MLXSW_CORE_H 38 #define _MLXSW_CORE_H 39 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 47 #include "trap.h" 48 #include "reg.h" 49 50 #include "cmd.h" 51 52 #define MLXSW_MODULE_ALIAS_PREFIX "mlxsw-driver-" 53 #define MODULE_MLXSW_DRIVER_ALIAS(kind) \ 54 MODULE_ALIAS(MLXSW_MODULE_ALIAS_PREFIX kind) 55 56 #define MLXSW_DEVICE_KIND_SWITCHX2 "switchx2" 57 #define MLXSW_DEVICE_KIND_SPECTRUM "spectrum" 58 59 struct mlxsw_core; 60 struct mlxsw_driver; 61 struct mlxsw_bus; 62 struct mlxsw_bus_info; 63 64 int mlxsw_core_driver_register(struct mlxsw_driver *mlxsw_driver); 65 void mlxsw_core_driver_unregister(struct mlxsw_driver *mlxsw_driver); 66 67 int mlxsw_core_bus_device_register(const struct mlxsw_bus_info *mlxsw_bus_info, 68 const struct mlxsw_bus *mlxsw_bus, 69 void *bus_priv); 70 void mlxsw_core_bus_device_unregister(struct mlxsw_core *mlxsw_core); 71 72 struct mlxsw_tx_info { 73 u8 local_port; 74 bool is_emad; 75 }; 76 77 bool mlxsw_core_skb_transmit_busy(void *driver_priv, 78 const struct mlxsw_tx_info *tx_info); 79 80 int mlxsw_core_skb_transmit(void *driver_priv, struct sk_buff *skb, 81 const struct mlxsw_tx_info *tx_info); 82 83 struct mlxsw_rx_listener { 84 void (*func)(struct sk_buff *skb, u8 local_port, void *priv); 85 u8 local_port; 86 u16 trap_id; 87 }; 88 89 struct mlxsw_event_listener { 90 void (*func)(const struct mlxsw_reg_info *reg, 91 char *payload, void *priv); 92 enum mlxsw_event_trap_id trap_id; 93 }; 94 95 int mlxsw_core_rx_listener_register(struct mlxsw_core *mlxsw_core, 96 const struct mlxsw_rx_listener *rxl, 97 void *priv); 98 void mlxsw_core_rx_listener_unregister(struct mlxsw_core *mlxsw_core, 99 const struct mlxsw_rx_listener *rxl, 100 void *priv); 101 102 int mlxsw_core_event_listener_register(struct mlxsw_core *mlxsw_core, 103 const struct mlxsw_event_listener *el, 104 void *priv); 105 void mlxsw_core_event_listener_unregister(struct mlxsw_core *mlxsw_core, 106 const struct mlxsw_event_listener *el, 107 void *priv); 108 109 int mlxsw_reg_query(struct mlxsw_core *mlxsw_core, 110 const struct mlxsw_reg_info *reg, char *payload); 111 int mlxsw_reg_write(struct mlxsw_core *mlxsw_core, 112 const struct mlxsw_reg_info *reg, char *payload); 113 114 struct mlxsw_rx_info { 115 bool is_lag; 116 union { 117 u16 sys_port; 118 u16 lag_id; 119 } u; 120 u8 lag_port_index; 121 int trap_id; 122 }; 123 124 void mlxsw_core_skb_receive(struct mlxsw_core *mlxsw_core, struct sk_buff *skb, 125 struct mlxsw_rx_info *rx_info); 126 127 void mlxsw_core_lag_mapping_set(struct mlxsw_core *mlxsw_core, 128 u16 lag_id, u8 port_index, u8 local_port); 129 u8 mlxsw_core_lag_mapping_get(struct mlxsw_core *mlxsw_core, 130 u16 lag_id, u8 port_index); 131 void mlxsw_core_lag_mapping_clear(struct mlxsw_core *mlxsw_core, 132 u16 lag_id, u8 local_port); 133 134 #define MLXSW_CONFIG_PROFILE_SWID_COUNT 8 135 136 struct mlxsw_swid_config { 137 u8 used_type:1, 138 used_properties:1; 139 u8 type; 140 u8 properties; 141 }; 142 143 struct mlxsw_config_profile { 144 u16 used_max_vepa_channels:1, 145 used_max_lag:1, 146 used_max_port_per_lag:1, 147 used_max_mid:1, 148 used_max_pgt:1, 149 used_max_system_port:1, 150 used_max_vlan_groups:1, 151 used_max_regions:1, 152 used_flood_tables:1, 153 used_flood_mode:1, 154 used_max_ib_mc:1, 155 used_max_pkey:1, 156 used_ar_sec:1, 157 used_adaptive_routing_group_cap:1; 158 u8 max_vepa_channels; 159 u16 max_lag; 160 u16 max_port_per_lag; 161 u16 max_mid; 162 u16 max_pgt; 163 u16 max_system_port; 164 u16 max_vlan_groups; 165 u16 max_regions; 166 u8 max_flood_tables; 167 u8 max_vid_flood_tables; 168 u8 flood_mode; 169 u8 max_fid_offset_flood_tables; 170 u16 fid_offset_flood_table_size; 171 u8 max_fid_flood_tables; 172 u16 fid_flood_table_size; 173 u16 max_ib_mc; 174 u16 max_pkey; 175 u8 ar_sec; 176 u16 adaptive_routing_group_cap; 177 u8 arn; 178 struct mlxsw_swid_config swid_config[MLXSW_CONFIG_PROFILE_SWID_COUNT]; 179 }; 180 181 struct mlxsw_driver { 182 struct list_head list; 183 const char *kind; 184 struct module *owner; 185 size_t priv_size; 186 int (*init)(void *driver_priv, struct mlxsw_core *mlxsw_core, 187 const struct mlxsw_bus_info *mlxsw_bus_info); 188 void (*fini)(void *driver_priv); 189 void (*txhdr_construct)(struct sk_buff *skb, 190 const struct mlxsw_tx_info *tx_info); 191 u8 txhdr_len; 192 const struct mlxsw_config_profile *profile; 193 }; 194 195 struct mlxsw_bus { 196 const char *kind; 197 int (*init)(void *bus_priv, struct mlxsw_core *mlxsw_core, 198 const struct mlxsw_config_profile *profile); 199 void (*fini)(void *bus_priv); 200 bool (*skb_transmit_busy)(void *bus_priv, 201 const struct mlxsw_tx_info *tx_info); 202 int (*skb_transmit)(void *bus_priv, struct sk_buff *skb, 203 const struct mlxsw_tx_info *tx_info); 204 int (*cmd_exec)(void *bus_priv, u16 opcode, u8 opcode_mod, 205 u32 in_mod, bool out_mbox_direct, 206 char *in_mbox, size_t in_mbox_size, 207 char *out_mbox, size_t out_mbox_size, 208 u8 *p_status); 209 }; 210 211 struct mlxsw_bus_info { 212 const char *device_kind; 213 const char *device_name; 214 struct device *dev; 215 struct { 216 u16 major; 217 u16 minor; 218 u16 subminor; 219 } fw_rev; 220 u8 vsd[MLXSW_CMD_BOARDINFO_VSD_LEN]; 221 u8 psid[MLXSW_CMD_BOARDINFO_PSID_LEN]; 222 }; 223 224 struct mlxsw_hwmon; 225 226 #ifdef CONFIG_MLXSW_CORE_HWMON 227 228 int mlxsw_hwmon_init(struct mlxsw_core *mlxsw_core, 229 const struct mlxsw_bus_info *mlxsw_bus_info, 230 struct mlxsw_hwmon **p_hwmon); 231 void mlxsw_hwmon_fini(struct mlxsw_hwmon *mlxsw_hwmon); 232 233 #else 234 235 static inline int mlxsw_hwmon_init(struct mlxsw_core *mlxsw_core, 236 const struct mlxsw_bus_info *mlxsw_bus_info, 237 struct mlxsw_hwmon **p_hwmon) 238 { 239 return 0; 240 } 241 242 #endif 243 244 #endif 245