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