Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1 | /* |
| 2 | * drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c |
| 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 | #include <linux/kernel.h> |
| 38 | #include <linux/types.h> |
| 39 | #include <linux/netdevice.h> |
| 40 | #include <linux/etherdevice.h> |
| 41 | #include <linux/slab.h> |
| 42 | #include <linux/device.h> |
| 43 | #include <linux/skbuff.h> |
| 44 | #include <linux/if_vlan.h> |
| 45 | #include <linux/if_bridge.h> |
| 46 | #include <linux/workqueue.h> |
| 47 | #include <linux/jiffies.h> |
| 48 | #include <net/switchdev.h> |
| 49 | |
| 50 | #include "spectrum.h" |
| 51 | #include "core.h" |
| 52 | #include "reg.h" |
| 53 | |
| 54 | static int mlxsw_sp_port_attr_get(struct net_device *dev, |
| 55 | struct switchdev_attr *attr) |
| 56 | { |
| 57 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 58 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 59 | |
| 60 | switch (attr->id) { |
| 61 | case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: |
| 62 | attr->u.ppid.id_len = sizeof(mlxsw_sp->base_mac); |
| 63 | memcpy(&attr->u.ppid.id, &mlxsw_sp->base_mac, |
| 64 | attr->u.ppid.id_len); |
| 65 | break; |
| 66 | case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: |
| 67 | attr->u.brport_flags = |
| 68 | (mlxsw_sp_port->learning ? BR_LEARNING : 0) | |
Ido Schimmel | 0293038 | 2015-10-28 10:16:58 +0100 | [diff] [blame] | 69 | (mlxsw_sp_port->learning_sync ? BR_LEARNING_SYNC : 0) | |
| 70 | (mlxsw_sp_port->uc_flood ? BR_FLOOD : 0); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 71 | break; |
| 72 | default: |
| 73 | return -EOPNOTSUPP; |
| 74 | } |
| 75 | |
| 76 | return 0; |
| 77 | } |
| 78 | |
| 79 | static int mlxsw_sp_port_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| 80 | u8 state) |
| 81 | { |
| 82 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 83 | enum mlxsw_reg_spms_state spms_state; |
| 84 | char *spms_pl; |
| 85 | u16 vid; |
| 86 | int err; |
| 87 | |
| 88 | switch (state) { |
| 89 | case BR_STATE_DISABLED: /* fall-through */ |
| 90 | case BR_STATE_FORWARDING: |
| 91 | spms_state = MLXSW_REG_SPMS_STATE_FORWARDING; |
| 92 | break; |
| 93 | case BR_STATE_LISTENING: /* fall-through */ |
| 94 | case BR_STATE_LEARNING: |
| 95 | spms_state = MLXSW_REG_SPMS_STATE_LEARNING; |
| 96 | break; |
| 97 | case BR_STATE_BLOCKING: |
| 98 | spms_state = MLXSW_REG_SPMS_STATE_DISCARDING; |
| 99 | break; |
| 100 | default: |
| 101 | BUG(); |
| 102 | } |
| 103 | |
| 104 | spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL); |
| 105 | if (!spms_pl) |
| 106 | return -ENOMEM; |
| 107 | mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port); |
| 108 | for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) |
| 109 | mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state); |
| 110 | |
| 111 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl); |
| 112 | kfree(spms_pl); |
| 113 | return err; |
| 114 | } |
| 115 | |
| 116 | static int mlxsw_sp_port_attr_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| 117 | struct switchdev_trans *trans, |
| 118 | u8 state) |
| 119 | { |
| 120 | if (switchdev_trans_ph_prepare(trans)) |
| 121 | return 0; |
| 122 | |
| 123 | mlxsw_sp_port->stp_state = state; |
| 124 | return mlxsw_sp_port_stp_state_set(mlxsw_sp_port, state); |
| 125 | } |
| 126 | |
Ido Schimmel | 0293038 | 2015-10-28 10:16:58 +0100 | [diff] [blame] | 127 | static int __mlxsw_sp_port_flood_set(struct mlxsw_sp_port *mlxsw_sp_port, |
Ido Schimmel | c06a94e | 2015-12-15 16:03:38 +0100 | [diff] [blame^] | 128 | u16 idx_begin, u16 idx_end, bool set, |
Ido Schimmel | 0293038 | 2015-10-28 10:16:58 +0100 | [diff] [blame] | 129 | bool only_uc) |
| 130 | { |
| 131 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 132 | u16 local_port = mlxsw_sp_port->local_port; |
| 133 | enum mlxsw_flood_table_type table_type; |
Ido Schimmel | c06a94e | 2015-12-15 16:03:38 +0100 | [diff] [blame^] | 134 | u16 range = idx_end - idx_begin + 1; |
Ido Schimmel | 0293038 | 2015-10-28 10:16:58 +0100 | [diff] [blame] | 135 | char *sftr_pl; |
| 136 | int err; |
| 137 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 138 | if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) { |
| 139 | table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID; |
| 140 | local_port = MLXSW_PORT_CPU_PORT; |
| 141 | } else { |
| 142 | table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST; |
| 143 | } |
| 144 | |
Ido Schimmel | 0293038 | 2015-10-28 10:16:58 +0100 | [diff] [blame] | 145 | sftr_pl = kmalloc(MLXSW_REG_SFTR_LEN, GFP_KERNEL); |
| 146 | if (!sftr_pl) |
| 147 | return -ENOMEM; |
| 148 | |
Ido Schimmel | c06a94e | 2015-12-15 16:03:38 +0100 | [diff] [blame^] | 149 | mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_UC, idx_begin, |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 150 | table_type, range, local_port, set); |
Ido Schimmel | 0293038 | 2015-10-28 10:16:58 +0100 | [diff] [blame] | 151 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl); |
| 152 | if (err) |
| 153 | goto buffer_out; |
| 154 | |
| 155 | /* Flooding control allows one to decide whether a given port will |
| 156 | * flood unicast traffic for which there is no FDB entry. |
| 157 | */ |
| 158 | if (only_uc) |
| 159 | goto buffer_out; |
| 160 | |
Ido Schimmel | c06a94e | 2015-12-15 16:03:38 +0100 | [diff] [blame^] | 161 | mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_BM, idx_begin, |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 162 | table_type, range, local_port, set); |
Ido Schimmel | 0293038 | 2015-10-28 10:16:58 +0100 | [diff] [blame] | 163 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl); |
| 164 | |
| 165 | buffer_out: |
| 166 | kfree(sftr_pl); |
| 167 | return err; |
| 168 | } |
| 169 | |
| 170 | static int mlxsw_sp_port_uc_flood_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| 171 | bool set) |
| 172 | { |
| 173 | struct net_device *dev = mlxsw_sp_port->dev; |
| 174 | u16 vid, last_visited_vid; |
| 175 | int err; |
| 176 | |
| 177 | for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) { |
| 178 | err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid, vid, set, |
| 179 | true); |
| 180 | if (err) { |
| 181 | last_visited_vid = vid; |
| 182 | goto err_port_flood_set; |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | return 0; |
| 187 | |
| 188 | err_port_flood_set: |
| 189 | for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid) |
| 190 | __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid, vid, !set, true); |
| 191 | netdev_err(dev, "Failed to configure unicast flooding\n"); |
| 192 | return err; |
| 193 | } |
| 194 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 195 | int mlxsw_sp_vport_flood_set(struct mlxsw_sp_port *mlxsw_sp_vport, u16 vfid, |
| 196 | bool set) |
| 197 | { |
| 198 | /* In case of vFIDs, index into the flooding table is relative to |
| 199 | * the start of the vFIDs range. |
| 200 | */ |
| 201 | return __mlxsw_sp_port_flood_set(mlxsw_sp_vport, vfid, vfid, set, true); |
| 202 | } |
| 203 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 204 | static int mlxsw_sp_port_attr_br_flags_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| 205 | struct switchdev_trans *trans, |
| 206 | unsigned long brport_flags) |
| 207 | { |
Ido Schimmel | 0293038 | 2015-10-28 10:16:58 +0100 | [diff] [blame] | 208 | unsigned long uc_flood = mlxsw_sp_port->uc_flood ? BR_FLOOD : 0; |
| 209 | bool set; |
| 210 | int err; |
| 211 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 212 | if (switchdev_trans_ph_prepare(trans)) |
| 213 | return 0; |
| 214 | |
Ido Schimmel | 0293038 | 2015-10-28 10:16:58 +0100 | [diff] [blame] | 215 | if ((uc_flood ^ brport_flags) & BR_FLOOD) { |
| 216 | set = mlxsw_sp_port->uc_flood ? false : true; |
| 217 | err = mlxsw_sp_port_uc_flood_set(mlxsw_sp_port, set); |
| 218 | if (err) |
| 219 | return err; |
| 220 | } |
| 221 | |
| 222 | mlxsw_sp_port->uc_flood = brport_flags & BR_FLOOD ? 1 : 0; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 223 | mlxsw_sp_port->learning = brport_flags & BR_LEARNING ? 1 : 0; |
| 224 | mlxsw_sp_port->learning_sync = brport_flags & BR_LEARNING_SYNC ? 1 : 0; |
Ido Schimmel | 0293038 | 2015-10-28 10:16:58 +0100 | [diff] [blame] | 225 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 226 | return 0; |
| 227 | } |
| 228 | |
| 229 | static int mlxsw_sp_ageing_set(struct mlxsw_sp *mlxsw_sp, u32 ageing_time) |
| 230 | { |
| 231 | char sfdat_pl[MLXSW_REG_SFDAT_LEN]; |
| 232 | int err; |
| 233 | |
| 234 | mlxsw_reg_sfdat_pack(sfdat_pl, ageing_time); |
| 235 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdat), sfdat_pl); |
| 236 | if (err) |
| 237 | return err; |
| 238 | mlxsw_sp->ageing_time = ageing_time; |
| 239 | return 0; |
| 240 | } |
| 241 | |
| 242 | static int mlxsw_sp_port_attr_br_ageing_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| 243 | struct switchdev_trans *trans, |
Jiri Pirko | 135f9ec | 2015-10-28 10:17:02 +0100 | [diff] [blame] | 244 | unsigned long ageing_clock_t) |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 245 | { |
| 246 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
Jiri Pirko | 135f9ec | 2015-10-28 10:17:02 +0100 | [diff] [blame] | 247 | unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 248 | u32 ageing_time = jiffies_to_msecs(ageing_jiffies) / 1000; |
| 249 | |
| 250 | if (switchdev_trans_ph_prepare(trans)) |
| 251 | return 0; |
| 252 | |
| 253 | return mlxsw_sp_ageing_set(mlxsw_sp, ageing_time); |
| 254 | } |
| 255 | |
| 256 | static int mlxsw_sp_port_attr_set(struct net_device *dev, |
| 257 | const struct switchdev_attr *attr, |
| 258 | struct switchdev_trans *trans) |
| 259 | { |
| 260 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 261 | int err = 0; |
| 262 | |
| 263 | switch (attr->id) { |
| 264 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
| 265 | err = mlxsw_sp_port_attr_stp_state_set(mlxsw_sp_port, trans, |
| 266 | attr->u.stp_state); |
| 267 | break; |
| 268 | case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: |
| 269 | err = mlxsw_sp_port_attr_br_flags_set(mlxsw_sp_port, trans, |
| 270 | attr->u.brport_flags); |
| 271 | break; |
| 272 | case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: |
| 273 | err = mlxsw_sp_port_attr_br_ageing_set(mlxsw_sp_port, trans, |
| 274 | attr->u.ageing_time); |
| 275 | break; |
| 276 | default: |
| 277 | err = -EOPNOTSUPP; |
| 278 | break; |
| 279 | } |
| 280 | |
| 281 | return err; |
| 282 | } |
| 283 | |
| 284 | static int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid) |
| 285 | { |
| 286 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 287 | char spvid_pl[MLXSW_REG_SPVID_LEN]; |
| 288 | |
| 289 | mlxsw_reg_spvid_pack(spvid_pl, mlxsw_sp_port->local_port, vid); |
| 290 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvid), spvid_pl); |
| 291 | } |
| 292 | |
| 293 | static int mlxsw_sp_fid_create(struct mlxsw_sp *mlxsw_sp, u16 fid) |
| 294 | { |
| 295 | char sfmr_pl[MLXSW_REG_SFMR_LEN]; |
| 296 | int err; |
| 297 | |
| 298 | mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_CREATE_FID, fid, fid); |
| 299 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl); |
| 300 | |
| 301 | if (err) |
| 302 | return err; |
| 303 | |
| 304 | set_bit(fid, mlxsw_sp->active_fids); |
| 305 | return 0; |
| 306 | } |
| 307 | |
| 308 | static void mlxsw_sp_fid_destroy(struct mlxsw_sp *mlxsw_sp, u16 fid) |
| 309 | { |
| 310 | char sfmr_pl[MLXSW_REG_SFMR_LEN]; |
| 311 | |
| 312 | clear_bit(fid, mlxsw_sp->active_fids); |
| 313 | |
| 314 | mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_DESTROY_FID, |
| 315 | fid, fid); |
| 316 | mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl); |
| 317 | } |
| 318 | |
| 319 | static int mlxsw_sp_port_fid_map(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid) |
| 320 | { |
| 321 | enum mlxsw_reg_svfa_mt mt; |
| 322 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 323 | if (!list_empty(&mlxsw_sp_port->vports_list)) |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 324 | mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID; |
| 325 | else |
| 326 | mt = MLXSW_REG_SVFA_MT_VID_TO_FID; |
| 327 | |
| 328 | return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, true, fid, fid); |
| 329 | } |
| 330 | |
| 331 | static int mlxsw_sp_port_fid_unmap(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid) |
| 332 | { |
| 333 | enum mlxsw_reg_svfa_mt mt; |
| 334 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 335 | if (list_empty(&mlxsw_sp_port->vports_list)) |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 336 | return 0; |
| 337 | |
| 338 | mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID; |
| 339 | return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false, fid, fid); |
| 340 | } |
| 341 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 342 | static int mlxsw_sp_port_add_vids(struct net_device *dev, u16 vid_begin, |
| 343 | u16 vid_end) |
| 344 | { |
| 345 | u16 vid; |
| 346 | int err; |
| 347 | |
| 348 | for (vid = vid_begin; vid <= vid_end; vid++) { |
| 349 | err = mlxsw_sp_port_add_vid(dev, 0, vid); |
| 350 | if (err) |
| 351 | goto err_port_add_vid; |
| 352 | } |
| 353 | return 0; |
| 354 | |
| 355 | err_port_add_vid: |
| 356 | for (vid--; vid >= vid_begin; vid--) |
| 357 | mlxsw_sp_port_kill_vid(dev, 0, vid); |
| 358 | return err; |
| 359 | } |
| 360 | |
Ido Schimmel | 3b7ad5e | 2015-11-19 12:27:39 +0100 | [diff] [blame] | 361 | static int __mlxsw_sp_port_vlans_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| 362 | u16 vid_begin, u16 vid_end, bool is_member, |
| 363 | bool untagged) |
| 364 | { |
| 365 | u16 vid, vid_e; |
| 366 | int err; |
| 367 | |
| 368 | for (vid = vid_begin; vid <= vid_end; |
| 369 | vid += MLXSW_REG_SPVM_REC_MAX_COUNT) { |
| 370 | vid_e = min((u16) (vid + MLXSW_REG_SPVM_REC_MAX_COUNT - 1), |
| 371 | vid_end); |
| 372 | |
| 373 | err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid_e, |
| 374 | is_member, untagged); |
| 375 | if (err) |
| 376 | return err; |
| 377 | } |
| 378 | |
| 379 | return 0; |
| 380 | } |
| 381 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 382 | static int __mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port, |
| 383 | u16 vid_begin, u16 vid_end, |
| 384 | bool flag_untagged, bool flag_pvid) |
| 385 | { |
| 386 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 387 | struct net_device *dev = mlxsw_sp_port->dev; |
Ido Schimmel | b07a966 | 2015-11-19 12:27:40 +0100 | [diff] [blame] | 388 | u16 vid, last_visited_vid, old_pvid; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 389 | enum mlxsw_reg_svfa_mt mt; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 390 | int err; |
| 391 | |
| 392 | /* In case this is invoked with BRIDGE_FLAGS_SELF and port is |
| 393 | * not bridged, then packets ingressing through the port with |
| 394 | * the specified VIDs will be directed to CPU. |
| 395 | */ |
| 396 | if (!mlxsw_sp_port->bridged) |
| 397 | return mlxsw_sp_port_add_vids(dev, vid_begin, vid_end); |
| 398 | |
| 399 | for (vid = vid_begin; vid <= vid_end; vid++) { |
| 400 | if (!test_bit(vid, mlxsw_sp->active_fids)) { |
| 401 | err = mlxsw_sp_fid_create(mlxsw_sp, vid); |
| 402 | if (err) { |
| 403 | netdev_err(dev, "Failed to create FID=%d\n", |
| 404 | vid); |
| 405 | return err; |
| 406 | } |
| 407 | |
| 408 | /* When creating a FID, we set a VID to FID mapping |
| 409 | * regardless of the port's mode. |
| 410 | */ |
| 411 | mt = MLXSW_REG_SVFA_MT_VID_TO_FID; |
| 412 | err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, |
| 413 | true, vid, vid); |
| 414 | if (err) { |
| 415 | netdev_err(dev, "Failed to create FID=VID=%d mapping\n", |
| 416 | vid); |
Ido Schimmel | b07a966 | 2015-11-19 12:27:40 +0100 | [diff] [blame] | 417 | goto err_port_vid_to_fid_set; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 418 | } |
| 419 | } |
Ido Schimmel | b07a966 | 2015-11-19 12:27:40 +0100 | [diff] [blame] | 420 | } |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 421 | |
Ido Schimmel | b07a966 | 2015-11-19 12:27:40 +0100 | [diff] [blame] | 422 | /* Set FID mapping according to port's mode */ |
| 423 | for (vid = vid_begin; vid <= vid_end; vid++) { |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 424 | err = mlxsw_sp_port_fid_map(mlxsw_sp_port, vid); |
| 425 | if (err) { |
| 426 | netdev_err(dev, "Failed to map FID=%d", vid); |
Ido Schimmel | b07a966 | 2015-11-19 12:27:40 +0100 | [diff] [blame] | 427 | last_visited_vid = --vid; |
| 428 | goto err_port_fid_map; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 429 | } |
Ido Schimmel | 1b3433a | 2015-10-28 10:16:57 +0100 | [diff] [blame] | 430 | } |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 431 | |
Ido Schimmel | 1b3433a | 2015-10-28 10:16:57 +0100 | [diff] [blame] | 432 | err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid_begin, vid_end, |
| 433 | true, false); |
| 434 | if (err) { |
| 435 | netdev_err(dev, "Failed to configure flooding\n"); |
Ido Schimmel | b07a966 | 2015-11-19 12:27:40 +0100 | [diff] [blame] | 436 | goto err_port_flood_set; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 437 | } |
| 438 | |
Ido Schimmel | 3b7ad5e | 2015-11-19 12:27:39 +0100 | [diff] [blame] | 439 | err = __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end, |
| 440 | true, flag_untagged); |
| 441 | if (err) { |
| 442 | netdev_err(dev, "Unable to add VIDs %d-%d\n", vid_begin, |
| 443 | vid_end); |
Ido Schimmel | b07a966 | 2015-11-19 12:27:40 +0100 | [diff] [blame] | 444 | goto err_port_vlans_set; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 445 | } |
| 446 | |
Ido Schimmel | b07a966 | 2015-11-19 12:27:40 +0100 | [diff] [blame] | 447 | old_pvid = mlxsw_sp_port->pvid; |
| 448 | if (flag_pvid && old_pvid != vid_begin) { |
| 449 | err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid_begin); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 450 | if (err) { |
Ido Schimmel | b07a966 | 2015-11-19 12:27:40 +0100 | [diff] [blame] | 451 | netdev_err(dev, "Unable to add PVID %d\n", vid_begin); |
| 452 | goto err_port_pvid_set; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 453 | } |
Ido Schimmel | b07a966 | 2015-11-19 12:27:40 +0100 | [diff] [blame] | 454 | mlxsw_sp_port->pvid = vid_begin; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 455 | } |
| 456 | |
| 457 | /* Changing activity bits only if HW operation succeded */ |
| 458 | for (vid = vid_begin; vid <= vid_end; vid++) |
| 459 | set_bit(vid, mlxsw_sp_port->active_vlans); |
| 460 | |
Ido Schimmel | b07a966 | 2015-11-19 12:27:40 +0100 | [diff] [blame] | 461 | /* STP state change must be done after we set active VLANs */ |
| 462 | err = mlxsw_sp_port_stp_state_set(mlxsw_sp_port, |
| 463 | mlxsw_sp_port->stp_state); |
| 464 | if (err) { |
| 465 | netdev_err(dev, "Failed to set STP state\n"); |
| 466 | goto err_port_stp_state_set; |
| 467 | } |
| 468 | |
| 469 | return 0; |
| 470 | |
| 471 | err_port_vid_to_fid_set: |
| 472 | mlxsw_sp_fid_destroy(mlxsw_sp, vid); |
| 473 | return err; |
| 474 | |
| 475 | err_port_stp_state_set: |
| 476 | for (vid = vid_begin; vid <= vid_end; vid++) |
| 477 | clear_bit(vid, mlxsw_sp_port->active_vlans); |
| 478 | if (old_pvid != mlxsw_sp_port->pvid) |
| 479 | mlxsw_sp_port_pvid_set(mlxsw_sp_port, old_pvid); |
| 480 | err_port_pvid_set: |
| 481 | __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end, false, |
| 482 | false); |
| 483 | err_port_vlans_set: |
| 484 | __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid_begin, vid_end, false, |
| 485 | false); |
| 486 | err_port_flood_set: |
| 487 | last_visited_vid = vid_end; |
| 488 | err_port_fid_map: |
| 489 | for (vid = last_visited_vid; vid >= vid_begin; vid--) |
| 490 | mlxsw_sp_port_fid_unmap(mlxsw_sp_port, vid); |
| 491 | return err; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 492 | } |
| 493 | |
| 494 | static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port, |
| 495 | const struct switchdev_obj_port_vlan *vlan, |
| 496 | struct switchdev_trans *trans) |
| 497 | { |
| 498 | bool untagged_flag = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; |
| 499 | bool pvid_flag = vlan->flags & BRIDGE_VLAN_INFO_PVID; |
| 500 | |
| 501 | if (switchdev_trans_ph_prepare(trans)) |
| 502 | return 0; |
| 503 | |
| 504 | return __mlxsw_sp_port_vlans_add(mlxsw_sp_port, |
| 505 | vlan->vid_begin, vlan->vid_end, |
| 506 | untagged_flag, pvid_flag); |
| 507 | } |
| 508 | |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 509 | static enum mlxsw_reg_sfd_rec_policy mlxsw_sp_sfd_rec_policy(bool dynamic) |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 510 | { |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 511 | return dynamic ? MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_INGRESS : |
| 512 | MLXSW_REG_SFD_REC_POLICY_STATIC_ENTRY; |
| 513 | } |
| 514 | |
| 515 | static enum mlxsw_reg_sfd_op mlxsw_sp_sfd_op(bool adding) |
| 516 | { |
| 517 | return adding ? MLXSW_REG_SFD_OP_WRITE_EDIT : |
| 518 | MLXSW_REG_SFD_OP_WRITE_REMOVE; |
| 519 | } |
| 520 | |
| 521 | static int mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp_port *mlxsw_sp_port, |
| 522 | const char *mac, u16 vid, bool adding, |
| 523 | bool dynamic) |
| 524 | { |
| 525 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 526 | char *sfd_pl; |
| 527 | int err; |
| 528 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 529 | sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); |
| 530 | if (!sfd_pl) |
| 531 | return -ENOMEM; |
| 532 | |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 533 | mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0); |
| 534 | mlxsw_reg_sfd_uc_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic), |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 535 | mac, vid, MLXSW_REG_SFD_REC_ACTION_NOP, |
| 536 | mlxsw_sp_port->local_port); |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 537 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); |
| 538 | kfree(sfd_pl); |
| 539 | |
| 540 | return err; |
| 541 | } |
| 542 | |
| 543 | static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id, |
| 544 | const char *mac, u16 vid, bool adding, |
| 545 | bool dynamic) |
| 546 | { |
| 547 | char *sfd_pl; |
| 548 | int err; |
| 549 | |
| 550 | sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); |
| 551 | if (!sfd_pl) |
| 552 | return -ENOMEM; |
| 553 | |
| 554 | mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0); |
| 555 | mlxsw_reg_sfd_uc_lag_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic), |
| 556 | mac, vid, MLXSW_REG_SFD_REC_ACTION_NOP, |
| 557 | lag_id); |
| 558 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 559 | kfree(sfd_pl); |
| 560 | |
| 561 | return err; |
| 562 | } |
| 563 | |
| 564 | static int |
| 565 | mlxsw_sp_port_fdb_static_add(struct mlxsw_sp_port *mlxsw_sp_port, |
| 566 | const struct switchdev_obj_port_fdb *fdb, |
| 567 | struct switchdev_trans *trans) |
| 568 | { |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 569 | u16 vid = fdb->vid; |
| 570 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 571 | if (switchdev_trans_ph_prepare(trans)) |
| 572 | return 0; |
| 573 | |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 574 | if (!vid) |
| 575 | vid = mlxsw_sp_port->pvid; |
| 576 | |
| 577 | if (!mlxsw_sp_port->lagged) |
| 578 | return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port, |
| 579 | fdb->addr, vid, true, false); |
| 580 | else |
| 581 | return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp, |
| 582 | mlxsw_sp_port->lag_id, |
| 583 | fdb->addr, vid, true, false); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 584 | } |
| 585 | |
| 586 | static int mlxsw_sp_port_obj_add(struct net_device *dev, |
| 587 | const struct switchdev_obj *obj, |
| 588 | struct switchdev_trans *trans) |
| 589 | { |
| 590 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 591 | int err = 0; |
| 592 | |
| 593 | switch (obj->id) { |
| 594 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
| 595 | err = mlxsw_sp_port_vlans_add(mlxsw_sp_port, |
| 596 | SWITCHDEV_OBJ_PORT_VLAN(obj), |
| 597 | trans); |
| 598 | break; |
| 599 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
| 600 | err = mlxsw_sp_port_fdb_static_add(mlxsw_sp_port, |
| 601 | SWITCHDEV_OBJ_PORT_FDB(obj), |
| 602 | trans); |
| 603 | break; |
| 604 | default: |
| 605 | err = -EOPNOTSUPP; |
| 606 | break; |
| 607 | } |
| 608 | |
| 609 | return err; |
| 610 | } |
| 611 | |
| 612 | static int mlxsw_sp_port_kill_vids(struct net_device *dev, u16 vid_begin, |
| 613 | u16 vid_end) |
| 614 | { |
| 615 | u16 vid; |
| 616 | int err; |
| 617 | |
| 618 | for (vid = vid_begin; vid <= vid_end; vid++) { |
| 619 | err = mlxsw_sp_port_kill_vid(dev, 0, vid); |
| 620 | if (err) |
| 621 | return err; |
| 622 | } |
| 623 | |
| 624 | return 0; |
| 625 | } |
| 626 | |
| 627 | static int __mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port, |
| 628 | u16 vid_begin, u16 vid_end, bool init) |
| 629 | { |
| 630 | struct net_device *dev = mlxsw_sp_port->dev; |
Ido Schimmel | 3b7ad5e | 2015-11-19 12:27:39 +0100 | [diff] [blame] | 631 | u16 vid, pvid; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 632 | int err; |
| 633 | |
| 634 | /* In case this is invoked with BRIDGE_FLAGS_SELF and port is |
| 635 | * not bridged, then prevent packets ingressing through the |
| 636 | * port with the specified VIDs from being trapped to CPU. |
| 637 | */ |
| 638 | if (!init && !mlxsw_sp_port->bridged) |
| 639 | return mlxsw_sp_port_kill_vids(dev, vid_begin, vid_end); |
| 640 | |
Ido Schimmel | 3b7ad5e | 2015-11-19 12:27:39 +0100 | [diff] [blame] | 641 | err = __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end, |
| 642 | false, false); |
| 643 | if (err) { |
| 644 | netdev_err(dev, "Unable to del VIDs %d-%d\n", vid_begin, |
| 645 | vid_end); |
| 646 | return err; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 647 | } |
| 648 | |
Ido Schimmel | 06c071f | 2015-11-19 12:27:38 +0100 | [diff] [blame] | 649 | pvid = mlxsw_sp_port->pvid; |
| 650 | if (pvid >= vid_begin && pvid <= vid_end && pvid != 1) { |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 651 | /* Default VLAN is always 1 */ |
Ido Schimmel | 06c071f | 2015-11-19 12:27:38 +0100 | [diff] [blame] | 652 | err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 653 | if (err) { |
Ido Schimmel | 06c071f | 2015-11-19 12:27:38 +0100 | [diff] [blame] | 654 | netdev_err(dev, "Unable to del PVID %d\n", pvid); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 655 | return err; |
| 656 | } |
Ido Schimmel | 06c071f | 2015-11-19 12:27:38 +0100 | [diff] [blame] | 657 | mlxsw_sp_port->pvid = 1; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 658 | } |
| 659 | |
| 660 | if (init) |
| 661 | goto out; |
| 662 | |
Ido Schimmel | 1b3433a | 2015-10-28 10:16:57 +0100 | [diff] [blame] | 663 | err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid_begin, vid_end, |
| 664 | false, false); |
| 665 | if (err) { |
| 666 | netdev_err(dev, "Failed to clear flooding\n"); |
| 667 | return err; |
| 668 | } |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 669 | |
Ido Schimmel | 1b3433a | 2015-10-28 10:16:57 +0100 | [diff] [blame] | 670 | for (vid = vid_begin; vid <= vid_end; vid++) { |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 671 | /* Remove FID mapping in case of Virtual mode */ |
| 672 | err = mlxsw_sp_port_fid_unmap(mlxsw_sp_port, vid); |
| 673 | if (err) { |
| 674 | netdev_err(dev, "Failed to unmap FID=%d", vid); |
| 675 | return err; |
| 676 | } |
| 677 | } |
| 678 | |
| 679 | out: |
| 680 | /* Changing activity bits only if HW operation succeded */ |
| 681 | for (vid = vid_begin; vid <= vid_end; vid++) |
| 682 | clear_bit(vid, mlxsw_sp_port->active_vlans); |
| 683 | |
| 684 | return 0; |
| 685 | } |
| 686 | |
| 687 | static int mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port, |
| 688 | const struct switchdev_obj_port_vlan *vlan) |
| 689 | { |
| 690 | return __mlxsw_sp_port_vlans_del(mlxsw_sp_port, |
| 691 | vlan->vid_begin, vlan->vid_end, false); |
| 692 | } |
| 693 | |
| 694 | static int |
| 695 | mlxsw_sp_port_fdb_static_del(struct mlxsw_sp_port *mlxsw_sp_port, |
| 696 | const struct switchdev_obj_port_fdb *fdb) |
| 697 | { |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 698 | if (!mlxsw_sp_port->lagged) |
| 699 | return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port, |
| 700 | fdb->addr, fdb->vid, |
| 701 | false, false); |
| 702 | else |
| 703 | return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp, |
| 704 | mlxsw_sp_port->lag_id, |
| 705 | fdb->addr, fdb->vid, |
| 706 | false, false); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 707 | } |
| 708 | |
| 709 | static int mlxsw_sp_port_obj_del(struct net_device *dev, |
| 710 | const struct switchdev_obj *obj) |
| 711 | { |
| 712 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 713 | int err = 0; |
| 714 | |
| 715 | switch (obj->id) { |
| 716 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
| 717 | err = mlxsw_sp_port_vlans_del(mlxsw_sp_port, |
| 718 | SWITCHDEV_OBJ_PORT_VLAN(obj)); |
| 719 | break; |
| 720 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
| 721 | err = mlxsw_sp_port_fdb_static_del(mlxsw_sp_port, |
| 722 | SWITCHDEV_OBJ_PORT_FDB(obj)); |
| 723 | break; |
| 724 | default: |
| 725 | err = -EOPNOTSUPP; |
| 726 | break; |
| 727 | } |
| 728 | |
| 729 | return err; |
| 730 | } |
| 731 | |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 732 | static struct mlxsw_sp_port *mlxsw_sp_lag_rep_port(struct mlxsw_sp *mlxsw_sp, |
| 733 | u16 lag_id) |
| 734 | { |
| 735 | struct mlxsw_sp_port *mlxsw_sp_port; |
| 736 | int i; |
| 737 | |
| 738 | for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) { |
| 739 | mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i); |
| 740 | if (mlxsw_sp_port) |
| 741 | return mlxsw_sp_port; |
| 742 | } |
| 743 | return NULL; |
| 744 | } |
| 745 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 746 | static int mlxsw_sp_port_fdb_dump(struct mlxsw_sp_port *mlxsw_sp_port, |
| 747 | struct switchdev_obj_port_fdb *fdb, |
| 748 | switchdev_obj_dump_cb_t *cb) |
| 749 | { |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 750 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 751 | char *sfd_pl; |
| 752 | char mac[ETH_ALEN]; |
| 753 | u16 vid; |
| 754 | u8 local_port; |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 755 | u16 lag_id; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 756 | u8 num_rec; |
| 757 | int stored_err = 0; |
| 758 | int i; |
| 759 | int err; |
| 760 | |
| 761 | sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); |
| 762 | if (!sfd_pl) |
| 763 | return -ENOMEM; |
| 764 | |
| 765 | mlxsw_reg_sfd_pack(sfd_pl, MLXSW_REG_SFD_OP_QUERY_DUMP, 0); |
| 766 | do { |
| 767 | mlxsw_reg_sfd_num_rec_set(sfd_pl, MLXSW_REG_SFD_REC_MAX_COUNT); |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 768 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 769 | if (err) |
| 770 | goto out; |
| 771 | |
| 772 | num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl); |
| 773 | |
| 774 | /* Even in case of error, we have to run the dump to the end |
| 775 | * so the session in firmware is finished. |
| 776 | */ |
| 777 | if (stored_err) |
| 778 | continue; |
| 779 | |
| 780 | for (i = 0; i < num_rec; i++) { |
| 781 | switch (mlxsw_reg_sfd_rec_type_get(sfd_pl, i)) { |
| 782 | case MLXSW_REG_SFD_REC_TYPE_UNICAST: |
| 783 | mlxsw_reg_sfd_uc_unpack(sfd_pl, i, mac, &vid, |
| 784 | &local_port); |
| 785 | if (local_port == mlxsw_sp_port->local_port) { |
| 786 | ether_addr_copy(fdb->addr, mac); |
| 787 | fdb->ndm_state = NUD_REACHABLE; |
| 788 | fdb->vid = vid; |
| 789 | err = cb(&fdb->obj); |
| 790 | if (err) |
| 791 | stored_err = err; |
| 792 | } |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 793 | break; |
| 794 | case MLXSW_REG_SFD_REC_TYPE_UNICAST_LAG: |
| 795 | mlxsw_reg_sfd_uc_lag_unpack(sfd_pl, i, |
| 796 | mac, &vid, &lag_id); |
| 797 | if (mlxsw_sp_port == |
| 798 | mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id)) { |
| 799 | ether_addr_copy(fdb->addr, mac); |
| 800 | fdb->ndm_state = NUD_REACHABLE; |
| 801 | fdb->vid = vid; |
| 802 | err = cb(&fdb->obj); |
| 803 | if (err) |
| 804 | stored_err = err; |
| 805 | } |
| 806 | break; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 807 | } |
| 808 | } |
| 809 | } while (num_rec == MLXSW_REG_SFD_REC_MAX_COUNT); |
| 810 | |
| 811 | out: |
| 812 | kfree(sfd_pl); |
| 813 | return stored_err ? stored_err : err; |
| 814 | } |
| 815 | |
| 816 | static int mlxsw_sp_port_vlan_dump(struct mlxsw_sp_port *mlxsw_sp_port, |
| 817 | struct switchdev_obj_port_vlan *vlan, |
| 818 | switchdev_obj_dump_cb_t *cb) |
| 819 | { |
| 820 | u16 vid; |
| 821 | int err = 0; |
| 822 | |
| 823 | for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) { |
| 824 | vlan->flags = 0; |
| 825 | if (vid == mlxsw_sp_port->pvid) |
| 826 | vlan->flags |= BRIDGE_VLAN_INFO_PVID; |
| 827 | vlan->vid_begin = vid; |
| 828 | vlan->vid_end = vid; |
| 829 | err = cb(&vlan->obj); |
| 830 | if (err) |
| 831 | break; |
| 832 | } |
| 833 | return err; |
| 834 | } |
| 835 | |
| 836 | static int mlxsw_sp_port_obj_dump(struct net_device *dev, |
| 837 | struct switchdev_obj *obj, |
| 838 | switchdev_obj_dump_cb_t *cb) |
| 839 | { |
| 840 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 841 | int err = 0; |
| 842 | |
| 843 | switch (obj->id) { |
| 844 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
| 845 | err = mlxsw_sp_port_vlan_dump(mlxsw_sp_port, |
| 846 | SWITCHDEV_OBJ_PORT_VLAN(obj), cb); |
| 847 | break; |
| 848 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
| 849 | err = mlxsw_sp_port_fdb_dump(mlxsw_sp_port, |
| 850 | SWITCHDEV_OBJ_PORT_FDB(obj), cb); |
| 851 | break; |
| 852 | default: |
| 853 | err = -EOPNOTSUPP; |
| 854 | break; |
| 855 | } |
| 856 | |
| 857 | return err; |
| 858 | } |
| 859 | |
Jiri Pirko | c7070fc | 2015-10-28 10:17:05 +0100 | [diff] [blame] | 860 | static const struct switchdev_ops mlxsw_sp_port_switchdev_ops = { |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 861 | .switchdev_port_attr_get = mlxsw_sp_port_attr_get, |
| 862 | .switchdev_port_attr_set = mlxsw_sp_port_attr_set, |
| 863 | .switchdev_port_obj_add = mlxsw_sp_port_obj_add, |
| 864 | .switchdev_port_obj_del = mlxsw_sp_port_obj_del, |
| 865 | .switchdev_port_obj_dump = mlxsw_sp_port_obj_dump, |
| 866 | }; |
| 867 | |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 868 | static void mlxsw_sp_fdb_call_notifiers(bool learning, bool learning_sync, |
| 869 | bool adding, char *mac, u16 vid, |
| 870 | struct net_device *dev) |
| 871 | { |
| 872 | struct switchdev_notifier_fdb_info info; |
| 873 | unsigned long notifier_type; |
| 874 | |
| 875 | if (learning && learning_sync) { |
| 876 | info.addr = mac; |
| 877 | info.vid = vid; |
| 878 | notifier_type = adding ? SWITCHDEV_FDB_ADD : SWITCHDEV_FDB_DEL; |
| 879 | call_switchdev_notifiers(notifier_type, dev, &info.info); |
| 880 | } |
| 881 | } |
| 882 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 883 | static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp, |
| 884 | char *sfn_pl, int rec_index, |
| 885 | bool adding) |
| 886 | { |
| 887 | struct mlxsw_sp_port *mlxsw_sp_port; |
| 888 | char mac[ETH_ALEN]; |
| 889 | u8 local_port; |
| 890 | u16 vid; |
| 891 | int err; |
| 892 | |
| 893 | mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &vid, &local_port); |
| 894 | mlxsw_sp_port = mlxsw_sp->ports[local_port]; |
| 895 | if (!mlxsw_sp_port) { |
| 896 | dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect local port in FDB notification\n"); |
| 897 | return; |
| 898 | } |
| 899 | |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 900 | err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port, mac, vid, |
| 901 | adding && mlxsw_sp_port->learning, true); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 902 | if (err) { |
| 903 | if (net_ratelimit()) |
| 904 | netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n"); |
| 905 | return; |
| 906 | } |
| 907 | |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 908 | mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning, |
| 909 | mlxsw_sp_port->learning_sync, |
| 910 | adding, mac, vid, mlxsw_sp_port->dev); |
| 911 | } |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 912 | |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 913 | static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp, |
| 914 | char *sfn_pl, int rec_index, |
| 915 | bool adding) |
| 916 | { |
| 917 | struct mlxsw_sp_port *mlxsw_sp_port; |
| 918 | char mac[ETH_ALEN]; |
| 919 | u16 lag_id; |
| 920 | u16 vid; |
| 921 | int err; |
| 922 | |
| 923 | mlxsw_reg_sfn_mac_lag_unpack(sfn_pl, rec_index, mac, &vid, &lag_id); |
| 924 | mlxsw_sp_port = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id); |
| 925 | if (!mlxsw_sp_port) { |
| 926 | dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Cannot find port representor for LAG\n"); |
| 927 | return; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 928 | } |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 929 | |
| 930 | err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, vid, |
| 931 | adding && mlxsw_sp_port->learning, |
| 932 | true); |
| 933 | if (err) { |
| 934 | if (net_ratelimit()) |
| 935 | netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n"); |
| 936 | return; |
| 937 | } |
| 938 | |
| 939 | mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning, |
| 940 | mlxsw_sp_port->learning_sync, |
| 941 | adding, mac, vid, |
| 942 | mlxsw_sp_lag_get(mlxsw_sp, lag_id)->dev); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 943 | } |
| 944 | |
| 945 | static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp, |
| 946 | char *sfn_pl, int rec_index) |
| 947 | { |
| 948 | switch (mlxsw_reg_sfn_rec_type_get(sfn_pl, rec_index)) { |
| 949 | case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC: |
| 950 | mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl, |
| 951 | rec_index, true); |
| 952 | break; |
| 953 | case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC: |
| 954 | mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl, |
| 955 | rec_index, false); |
| 956 | break; |
Jiri Pirko | 8a1ab5d | 2015-12-03 12:12:29 +0100 | [diff] [blame] | 957 | case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC_LAG: |
| 958 | mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl, |
| 959 | rec_index, true); |
| 960 | break; |
| 961 | case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC_LAG: |
| 962 | mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl, |
| 963 | rec_index, false); |
| 964 | break; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 965 | } |
| 966 | } |
| 967 | |
| 968 | static void mlxsw_sp_fdb_notify_work_schedule(struct mlxsw_sp *mlxsw_sp) |
| 969 | { |
| 970 | schedule_delayed_work(&mlxsw_sp->fdb_notify.dw, |
| 971 | msecs_to_jiffies(mlxsw_sp->fdb_notify.interval)); |
| 972 | } |
| 973 | |
| 974 | static void mlxsw_sp_fdb_notify_work(struct work_struct *work) |
| 975 | { |
| 976 | struct mlxsw_sp *mlxsw_sp; |
| 977 | char *sfn_pl; |
| 978 | u8 num_rec; |
| 979 | int i; |
| 980 | int err; |
| 981 | |
| 982 | sfn_pl = kmalloc(MLXSW_REG_SFN_LEN, GFP_KERNEL); |
| 983 | if (!sfn_pl) |
| 984 | return; |
| 985 | |
| 986 | mlxsw_sp = container_of(work, struct mlxsw_sp, fdb_notify.dw.work); |
| 987 | |
| 988 | do { |
| 989 | mlxsw_reg_sfn_pack(sfn_pl); |
| 990 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfn), sfn_pl); |
| 991 | if (err) { |
| 992 | dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to get FDB notifications\n"); |
| 993 | break; |
| 994 | } |
| 995 | num_rec = mlxsw_reg_sfn_num_rec_get(sfn_pl); |
| 996 | for (i = 0; i < num_rec; i++) |
| 997 | mlxsw_sp_fdb_notify_rec_process(mlxsw_sp, sfn_pl, i); |
| 998 | |
| 999 | } while (num_rec); |
| 1000 | |
| 1001 | kfree(sfn_pl); |
| 1002 | mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp); |
| 1003 | } |
| 1004 | |
| 1005 | static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp) |
| 1006 | { |
| 1007 | int err; |
| 1008 | |
| 1009 | err = mlxsw_sp_ageing_set(mlxsw_sp, MLXSW_SP_DEFAULT_AGEING_TIME); |
| 1010 | if (err) { |
| 1011 | dev_err(mlxsw_sp->bus_info->dev, "Failed to set default ageing time\n"); |
| 1012 | return err; |
| 1013 | } |
| 1014 | INIT_DELAYED_WORK(&mlxsw_sp->fdb_notify.dw, mlxsw_sp_fdb_notify_work); |
| 1015 | mlxsw_sp->fdb_notify.interval = MLXSW_SP_DEFAULT_LEARNING_INTERVAL; |
| 1016 | mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp); |
| 1017 | return 0; |
| 1018 | } |
| 1019 | |
| 1020 | static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp) |
| 1021 | { |
| 1022 | cancel_delayed_work_sync(&mlxsw_sp->fdb_notify.dw); |
| 1023 | } |
| 1024 | |
| 1025 | static void mlxsw_sp_fids_fini(struct mlxsw_sp *mlxsw_sp) |
| 1026 | { |
| 1027 | u16 fid; |
| 1028 | |
| 1029 | for_each_set_bit(fid, mlxsw_sp->active_fids, VLAN_N_VID) |
| 1030 | mlxsw_sp_fid_destroy(mlxsw_sp, fid); |
| 1031 | } |
| 1032 | |
| 1033 | int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp) |
| 1034 | { |
| 1035 | return mlxsw_sp_fdb_init(mlxsw_sp); |
| 1036 | } |
| 1037 | |
| 1038 | void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp) |
| 1039 | { |
| 1040 | mlxsw_sp_fdb_fini(mlxsw_sp); |
| 1041 | mlxsw_sp_fids_fini(mlxsw_sp); |
| 1042 | } |
| 1043 | |
| 1044 | int mlxsw_sp_port_vlan_init(struct mlxsw_sp_port *mlxsw_sp_port) |
| 1045 | { |
| 1046 | struct net_device *dev = mlxsw_sp_port->dev; |
| 1047 | int err; |
| 1048 | |
| 1049 | /* Allow only untagged packets to ingress and tag them internally |
| 1050 | * with VID 1. |
| 1051 | */ |
| 1052 | mlxsw_sp_port->pvid = 1; |
| 1053 | err = __mlxsw_sp_port_vlans_del(mlxsw_sp_port, 0, VLAN_N_VID, true); |
| 1054 | if (err) { |
| 1055 | netdev_err(dev, "Unable to init VLANs\n"); |
| 1056 | return err; |
| 1057 | } |
| 1058 | |
| 1059 | /* Add implicit VLAN interface in the device, so that untagged |
| 1060 | * packets will be classified to the default vFID. |
| 1061 | */ |
| 1062 | err = mlxsw_sp_port_add_vid(dev, 0, 1); |
| 1063 | if (err) |
| 1064 | netdev_err(dev, "Failed to configure default vFID\n"); |
| 1065 | |
| 1066 | return err; |
| 1067 | } |
| 1068 | |
| 1069 | void mlxsw_sp_port_switchdev_init(struct mlxsw_sp_port *mlxsw_sp_port) |
| 1070 | { |
| 1071 | mlxsw_sp_port->dev->switchdev_ops = &mlxsw_sp_port_switchdev_ops; |
| 1072 | } |
| 1073 | |
| 1074 | void mlxsw_sp_port_switchdev_fini(struct mlxsw_sp_port *mlxsw_sp_port) |
| 1075 | { |
| 1076 | } |