1 /* 2 * drivers/net/ethernet/mellanox/mlxsw/spectrum.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_SPECTRUM_H 38 #define _MLXSW_SPECTRUM_H 39 40 #include <linux/types.h> 41 #include <linux/netdevice.h> 42 #include <linux/bitops.h> 43 #include <linux/if_vlan.h> 44 #include <linux/list.h> 45 #include <net/switchdev.h> 46 #include <net/devlink.h> 47 48 #include "port.h" 49 #include "core.h" 50 51 #define MLXSW_SP_VFID_BASE VLAN_N_VID 52 #define MLXSW_SP_VFID_PORT_MAX 512 /* Non-bridged VLAN interfaces */ 53 #define MLXSW_SP_VFID_BR_MAX 8192 /* Bridged VLAN interfaces */ 54 #define MLXSW_SP_VFID_MAX (MLXSW_SP_VFID_PORT_MAX + MLXSW_SP_VFID_BR_MAX) 55 56 #define MLXSW_SP_LAG_MAX 64 57 #define MLXSW_SP_PORT_PER_LAG_MAX 16 58 59 #define MLXSW_SP_MID_MAX 7000 60 61 #define MLXSW_SP_PORTS_PER_CLUSTER_MAX 4 62 63 #define MLXSW_SP_PORT_BASE_SPEED 25000 /* Mb/s */ 64 65 struct mlxsw_sp_port; 66 67 struct mlxsw_sp_upper { 68 struct net_device *dev; 69 unsigned int ref_count; 70 }; 71 72 struct mlxsw_sp_vfid { 73 struct list_head list; 74 u16 nr_vports; 75 u16 vfid; /* Starting at 0 */ 76 struct net_device *br_dev; 77 u16 vid; 78 }; 79 80 struct mlxsw_sp_mid { 81 struct list_head list; 82 unsigned char addr[ETH_ALEN]; 83 u16 vid; 84 u16 mid; 85 unsigned int ref_count; 86 }; 87 88 static inline u16 mlxsw_sp_vfid_to_fid(u16 vfid) 89 { 90 return MLXSW_SP_VFID_BASE + vfid; 91 } 92 93 static inline u16 mlxsw_sp_fid_to_vfid(u16 fid) 94 { 95 return fid - MLXSW_SP_VFID_BASE; 96 } 97 98 static inline bool mlxsw_sp_fid_is_vfid(u16 fid) 99 { 100 return fid >= MLXSW_SP_VFID_BASE; 101 } 102 103 struct mlxsw_sp { 104 struct { 105 struct list_head list; 106 unsigned long mapped[BITS_TO_LONGS(MLXSW_SP_VFID_PORT_MAX)]; 107 } port_vfids; 108 struct { 109 struct list_head list; 110 unsigned long mapped[BITS_TO_LONGS(MLXSW_SP_VFID_BR_MAX)]; 111 } br_vfids; 112 struct { 113 struct list_head list; 114 unsigned long mapped[BITS_TO_LONGS(MLXSW_SP_MID_MAX)]; 115 } br_mids; 116 unsigned long active_fids[BITS_TO_LONGS(VLAN_N_VID)]; 117 struct mlxsw_sp_port **ports; 118 struct mlxsw_core *core; 119 const struct mlxsw_bus_info *bus_info; 120 unsigned char base_mac[ETH_ALEN]; 121 struct { 122 struct delayed_work dw; 123 #define MLXSW_SP_DEFAULT_LEARNING_INTERVAL 100 124 unsigned int interval; /* ms */ 125 } fdb_notify; 126 #define MLXSW_SP_MIN_AGEING_TIME 10 127 #define MLXSW_SP_MAX_AGEING_TIME 1000000 128 #define MLXSW_SP_DEFAULT_AGEING_TIME 300 129 u32 ageing_time; 130 struct mlxsw_sp_upper master_bridge; 131 struct mlxsw_sp_upper lags[MLXSW_SP_LAG_MAX]; 132 u8 port_to_module[MLXSW_PORT_MAX_PORTS]; 133 }; 134 135 static inline struct mlxsw_sp_upper * 136 mlxsw_sp_lag_get(struct mlxsw_sp *mlxsw_sp, u16 lag_id) 137 { 138 return &mlxsw_sp->lags[lag_id]; 139 } 140 141 struct mlxsw_sp_port_pcpu_stats { 142 u64 rx_packets; 143 u64 rx_bytes; 144 u64 tx_packets; 145 u64 tx_bytes; 146 struct u64_stats_sync syncp; 147 u32 tx_dropped; 148 }; 149 150 struct mlxsw_sp_port { 151 struct net_device *dev; 152 struct mlxsw_sp_port_pcpu_stats __percpu *pcpu_stats; 153 struct mlxsw_sp *mlxsw_sp; 154 u8 local_port; 155 u8 stp_state; 156 u8 learning:1, 157 learning_sync:1, 158 uc_flood:1, 159 bridged:1, 160 lagged:1, 161 split:1; 162 u16 pvid; 163 u16 lag_id; 164 struct { 165 struct list_head list; 166 struct mlxsw_sp_vfid *vfid; 167 u16 vid; 168 } vport; 169 /* 802.1Q bridge VLANs */ 170 unsigned long *active_vlans; 171 unsigned long *untagged_vlans; 172 /* VLAN interfaces */ 173 struct list_head vports_list; 174 struct devlink_port devlink_port; 175 }; 176 177 static inline struct mlxsw_sp_port * 178 mlxsw_sp_port_lagged_get(struct mlxsw_sp *mlxsw_sp, u16 lag_id, u8 port_index) 179 { 180 struct mlxsw_sp_port *mlxsw_sp_port; 181 u8 local_port; 182 183 local_port = mlxsw_core_lag_mapping_get(mlxsw_sp->core, 184 lag_id, port_index); 185 mlxsw_sp_port = mlxsw_sp->ports[local_port]; 186 return mlxsw_sp_port && mlxsw_sp_port->lagged ? mlxsw_sp_port : NULL; 187 } 188 189 static inline bool 190 mlxsw_sp_port_is_vport(const struct mlxsw_sp_port *mlxsw_sp_port) 191 { 192 return mlxsw_sp_port->vport.vfid; 193 } 194 195 static inline struct net_device * 196 mlxsw_sp_vport_br_get(const struct mlxsw_sp_port *mlxsw_sp_vport) 197 { 198 return mlxsw_sp_vport->vport.vfid->br_dev; 199 } 200 201 static inline u16 202 mlxsw_sp_vport_vid_get(const struct mlxsw_sp_port *mlxsw_sp_vport) 203 { 204 return mlxsw_sp_vport->vport.vid; 205 } 206 207 static inline u16 208 mlxsw_sp_vport_vfid_get(const struct mlxsw_sp_port *mlxsw_sp_vport) 209 { 210 return mlxsw_sp_vport->vport.vfid->vfid; 211 } 212 213 static inline struct mlxsw_sp_port * 214 mlxsw_sp_port_vport_find(const struct mlxsw_sp_port *mlxsw_sp_port, u16 vid) 215 { 216 struct mlxsw_sp_port *mlxsw_sp_vport; 217 218 list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list, 219 vport.list) { 220 if (mlxsw_sp_vport_vid_get(mlxsw_sp_vport) == vid) 221 return mlxsw_sp_vport; 222 } 223 224 return NULL; 225 } 226 227 static inline struct mlxsw_sp_port * 228 mlxsw_sp_port_vport_find_by_vfid(const struct mlxsw_sp_port *mlxsw_sp_port, 229 u16 vfid) 230 { 231 struct mlxsw_sp_port *mlxsw_sp_vport; 232 233 list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list, 234 vport.list) { 235 if (mlxsw_sp_vport_vfid_get(mlxsw_sp_vport) == vfid) 236 return mlxsw_sp_vport; 237 } 238 239 return NULL; 240 } 241 242 enum mlxsw_sp_flood_table { 243 MLXSW_SP_FLOOD_TABLE_UC, 244 MLXSW_SP_FLOOD_TABLE_BM, 245 }; 246 247 int mlxsw_sp_buffers_init(struct mlxsw_sp *mlxsw_sp); 248 int mlxsw_sp_port_buffers_init(struct mlxsw_sp_port *mlxsw_sp_port); 249 250 int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp); 251 void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp); 252 int mlxsw_sp_port_vlan_init(struct mlxsw_sp_port *mlxsw_sp_port); 253 void mlxsw_sp_port_switchdev_init(struct mlxsw_sp_port *mlxsw_sp_port); 254 void mlxsw_sp_port_switchdev_fini(struct mlxsw_sp_port *mlxsw_sp_port); 255 int mlxsw_sp_port_vid_to_fid_set(struct mlxsw_sp_port *mlxsw_sp_port, 256 enum mlxsw_reg_svfa_mt mt, bool valid, u16 fid, 257 u16 vid); 258 int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin, 259 u16 vid_end, bool is_member, bool untagged); 260 int mlxsw_sp_port_add_vid(struct net_device *dev, __be16 __always_unused proto, 261 u16 vid); 262 int mlxsw_sp_port_kill_vid(struct net_device *dev, 263 __be16 __always_unused proto, u16 vid); 264 int mlxsw_sp_vport_flood_set(struct mlxsw_sp_port *mlxsw_sp_vport, u16 vfid, 265 bool set, bool only_uc); 266 void mlxsw_sp_port_active_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port); 267 int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid); 268 269 #endif 270