Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1 | /* |
| 2 | * drivers/net/ethernet/mellanox/mlxsw/spectrum.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/module.h> |
| 39 | #include <linux/types.h> |
| 40 | #include <linux/netdevice.h> |
| 41 | #include <linux/etherdevice.h> |
| 42 | #include <linux/ethtool.h> |
| 43 | #include <linux/slab.h> |
| 44 | #include <linux/device.h> |
| 45 | #include <linux/skbuff.h> |
| 46 | #include <linux/if_vlan.h> |
| 47 | #include <linux/if_bridge.h> |
| 48 | #include <linux/workqueue.h> |
| 49 | #include <linux/jiffies.h> |
| 50 | #include <linux/bitops.h> |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 51 | #include <linux/list.h> |
Jiri Pirko | c474550 | 2016-02-26 17:32:26 +0100 | [diff] [blame] | 52 | #include <net/devlink.h> |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 53 | #include <net/switchdev.h> |
| 54 | #include <generated/utsrelease.h> |
| 55 | |
| 56 | #include "spectrum.h" |
| 57 | #include "core.h" |
| 58 | #include "reg.h" |
| 59 | #include "port.h" |
| 60 | #include "trap.h" |
| 61 | #include "txheader.h" |
| 62 | |
| 63 | static const char mlxsw_sp_driver_name[] = "mlxsw_spectrum"; |
| 64 | static const char mlxsw_sp_driver_version[] = "1.0"; |
| 65 | |
| 66 | /* tx_hdr_version |
| 67 | * Tx header version. |
| 68 | * Must be set to 1. |
| 69 | */ |
| 70 | MLXSW_ITEM32(tx, hdr, version, 0x00, 28, 4); |
| 71 | |
| 72 | /* tx_hdr_ctl |
| 73 | * Packet control type. |
| 74 | * 0 - Ethernet control (e.g. EMADs, LACP) |
| 75 | * 1 - Ethernet data |
| 76 | */ |
| 77 | MLXSW_ITEM32(tx, hdr, ctl, 0x00, 26, 2); |
| 78 | |
| 79 | /* tx_hdr_proto |
| 80 | * Packet protocol type. Must be set to 1 (Ethernet). |
| 81 | */ |
| 82 | MLXSW_ITEM32(tx, hdr, proto, 0x00, 21, 3); |
| 83 | |
| 84 | /* tx_hdr_rx_is_router |
| 85 | * Packet is sent from the router. Valid for data packets only. |
| 86 | */ |
| 87 | MLXSW_ITEM32(tx, hdr, rx_is_router, 0x00, 19, 1); |
| 88 | |
| 89 | /* tx_hdr_fid_valid |
| 90 | * Indicates if the 'fid' field is valid and should be used for |
| 91 | * forwarding lookup. Valid for data packets only. |
| 92 | */ |
| 93 | MLXSW_ITEM32(tx, hdr, fid_valid, 0x00, 16, 1); |
| 94 | |
| 95 | /* tx_hdr_swid |
| 96 | * Switch partition ID. Must be set to 0. |
| 97 | */ |
| 98 | MLXSW_ITEM32(tx, hdr, swid, 0x00, 12, 3); |
| 99 | |
| 100 | /* tx_hdr_control_tclass |
| 101 | * Indicates if the packet should use the control TClass and not one |
| 102 | * of the data TClasses. |
| 103 | */ |
| 104 | MLXSW_ITEM32(tx, hdr, control_tclass, 0x00, 6, 1); |
| 105 | |
| 106 | /* tx_hdr_etclass |
| 107 | * Egress TClass to be used on the egress device on the egress port. |
| 108 | */ |
| 109 | MLXSW_ITEM32(tx, hdr, etclass, 0x00, 0, 4); |
| 110 | |
| 111 | /* tx_hdr_port_mid |
| 112 | * Destination local port for unicast packets. |
| 113 | * Destination multicast ID for multicast packets. |
| 114 | * |
| 115 | * Control packets are directed to a specific egress port, while data |
| 116 | * packets are transmitted through the CPU port (0) into the switch partition, |
| 117 | * where forwarding rules are applied. |
| 118 | */ |
| 119 | MLXSW_ITEM32(tx, hdr, port_mid, 0x04, 16, 16); |
| 120 | |
| 121 | /* tx_hdr_fid |
| 122 | * Forwarding ID used for L2 forwarding lookup. Valid only if 'fid_valid' is |
| 123 | * set, otherwise calculated based on the packet's VID using VID to FID mapping. |
| 124 | * Valid for data packets only. |
| 125 | */ |
| 126 | MLXSW_ITEM32(tx, hdr, fid, 0x08, 0, 16); |
| 127 | |
| 128 | /* tx_hdr_type |
| 129 | * 0 - Data packets |
| 130 | * 6 - Control packets |
| 131 | */ |
| 132 | MLXSW_ITEM32(tx, hdr, type, 0x0C, 0, 4); |
| 133 | |
| 134 | static void mlxsw_sp_txhdr_construct(struct sk_buff *skb, |
| 135 | const struct mlxsw_tx_info *tx_info) |
| 136 | { |
| 137 | char *txhdr = skb_push(skb, MLXSW_TXHDR_LEN); |
| 138 | |
| 139 | memset(txhdr, 0, MLXSW_TXHDR_LEN); |
| 140 | |
| 141 | mlxsw_tx_hdr_version_set(txhdr, MLXSW_TXHDR_VERSION_1); |
| 142 | mlxsw_tx_hdr_ctl_set(txhdr, MLXSW_TXHDR_ETH_CTL); |
| 143 | mlxsw_tx_hdr_proto_set(txhdr, MLXSW_TXHDR_PROTO_ETH); |
| 144 | mlxsw_tx_hdr_swid_set(txhdr, 0); |
| 145 | mlxsw_tx_hdr_control_tclass_set(txhdr, 1); |
| 146 | mlxsw_tx_hdr_port_mid_set(txhdr, tx_info->local_port); |
| 147 | mlxsw_tx_hdr_type_set(txhdr, MLXSW_TXHDR_TYPE_CONTROL); |
| 148 | } |
| 149 | |
| 150 | static int mlxsw_sp_base_mac_get(struct mlxsw_sp *mlxsw_sp) |
| 151 | { |
| 152 | char spad_pl[MLXSW_REG_SPAD_LEN]; |
| 153 | int err; |
| 154 | |
| 155 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(spad), spad_pl); |
| 156 | if (err) |
| 157 | return err; |
| 158 | mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_sp->base_mac); |
| 159 | return 0; |
| 160 | } |
| 161 | |
| 162 | static int mlxsw_sp_port_admin_status_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| 163 | bool is_up) |
| 164 | { |
| 165 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 166 | char paos_pl[MLXSW_REG_PAOS_LEN]; |
| 167 | |
| 168 | mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port, |
| 169 | is_up ? MLXSW_PORT_ADMIN_STATUS_UP : |
| 170 | MLXSW_PORT_ADMIN_STATUS_DOWN); |
| 171 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(paos), paos_pl); |
| 172 | } |
| 173 | |
| 174 | static int mlxsw_sp_port_oper_status_get(struct mlxsw_sp_port *mlxsw_sp_port, |
| 175 | bool *p_is_up) |
| 176 | { |
| 177 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 178 | char paos_pl[MLXSW_REG_PAOS_LEN]; |
| 179 | u8 oper_status; |
| 180 | int err; |
| 181 | |
| 182 | mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port, 0); |
| 183 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(paos), paos_pl); |
| 184 | if (err) |
| 185 | return err; |
| 186 | oper_status = mlxsw_reg_paos_oper_status_get(paos_pl); |
| 187 | *p_is_up = oper_status == MLXSW_PORT_ADMIN_STATUS_UP ? true : false; |
| 188 | return 0; |
| 189 | } |
| 190 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 191 | static int mlxsw_sp_port_dev_addr_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| 192 | unsigned char *addr) |
| 193 | { |
| 194 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 195 | char ppad_pl[MLXSW_REG_PPAD_LEN]; |
| 196 | |
| 197 | mlxsw_reg_ppad_pack(ppad_pl, true, mlxsw_sp_port->local_port); |
| 198 | mlxsw_reg_ppad_mac_memcpy_to(ppad_pl, addr); |
| 199 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppad), ppad_pl); |
| 200 | } |
| 201 | |
| 202 | static int mlxsw_sp_port_dev_addr_init(struct mlxsw_sp_port *mlxsw_sp_port) |
| 203 | { |
| 204 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 205 | unsigned char *addr = mlxsw_sp_port->dev->dev_addr; |
| 206 | |
| 207 | ether_addr_copy(addr, mlxsw_sp->base_mac); |
| 208 | addr[ETH_ALEN - 1] += mlxsw_sp_port->local_port; |
| 209 | return mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr); |
| 210 | } |
| 211 | |
| 212 | static int mlxsw_sp_port_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| 213 | u16 vid, enum mlxsw_reg_spms_state state) |
| 214 | { |
| 215 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 216 | char *spms_pl; |
| 217 | int err; |
| 218 | |
| 219 | spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL); |
| 220 | if (!spms_pl) |
| 221 | return -ENOMEM; |
| 222 | mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port); |
| 223 | mlxsw_reg_spms_vid_pack(spms_pl, vid, state); |
| 224 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl); |
| 225 | kfree(spms_pl); |
| 226 | return err; |
| 227 | } |
| 228 | |
| 229 | static int mlxsw_sp_port_mtu_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu) |
| 230 | { |
| 231 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 232 | char pmtu_pl[MLXSW_REG_PMTU_LEN]; |
| 233 | int max_mtu; |
| 234 | int err; |
| 235 | |
| 236 | mtu += MLXSW_TXHDR_LEN + ETH_HLEN; |
| 237 | mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, 0); |
| 238 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl); |
| 239 | if (err) |
| 240 | return err; |
| 241 | max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl); |
| 242 | |
| 243 | if (mtu > max_mtu) |
| 244 | return -EINVAL; |
| 245 | |
| 246 | mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, mtu); |
| 247 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl); |
| 248 | } |
| 249 | |
| 250 | static int mlxsw_sp_port_swid_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 swid) |
| 251 | { |
| 252 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 253 | char pspa_pl[MLXSW_REG_PSPA_LEN]; |
| 254 | |
| 255 | mlxsw_reg_pspa_pack(pspa_pl, swid, mlxsw_sp_port->local_port); |
| 256 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pspa), pspa_pl); |
| 257 | } |
| 258 | |
| 259 | static int mlxsw_sp_port_vp_mode_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| 260 | bool enable) |
| 261 | { |
| 262 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 263 | char svpe_pl[MLXSW_REG_SVPE_LEN]; |
| 264 | |
| 265 | mlxsw_reg_svpe_pack(svpe_pl, mlxsw_sp_port->local_port, enable); |
| 266 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svpe), svpe_pl); |
| 267 | } |
| 268 | |
| 269 | int mlxsw_sp_port_vid_to_fid_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| 270 | enum mlxsw_reg_svfa_mt mt, bool valid, u16 fid, |
| 271 | u16 vid) |
| 272 | { |
| 273 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 274 | char svfa_pl[MLXSW_REG_SVFA_LEN]; |
| 275 | |
| 276 | mlxsw_reg_svfa_pack(svfa_pl, mlxsw_sp_port->local_port, mt, valid, |
| 277 | fid, vid); |
| 278 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svfa), svfa_pl); |
| 279 | } |
| 280 | |
| 281 | static int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| 282 | u16 vid, bool learn_enable) |
| 283 | { |
| 284 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 285 | char *spvmlr_pl; |
| 286 | int err; |
| 287 | |
| 288 | spvmlr_pl = kmalloc(MLXSW_REG_SPVMLR_LEN, GFP_KERNEL); |
| 289 | if (!spvmlr_pl) |
| 290 | return -ENOMEM; |
| 291 | mlxsw_reg_spvmlr_pack(spvmlr_pl, mlxsw_sp_port->local_port, vid, vid, |
| 292 | learn_enable); |
| 293 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvmlr), spvmlr_pl); |
| 294 | kfree(spvmlr_pl); |
| 295 | return err; |
| 296 | } |
| 297 | |
| 298 | static int |
| 299 | mlxsw_sp_port_system_port_mapping_set(struct mlxsw_sp_port *mlxsw_sp_port) |
| 300 | { |
| 301 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 302 | char sspr_pl[MLXSW_REG_SSPR_LEN]; |
| 303 | |
| 304 | mlxsw_reg_sspr_pack(sspr_pl, mlxsw_sp_port->local_port); |
| 305 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sspr), sspr_pl); |
| 306 | } |
| 307 | |
Ido Schimmel | 558c2d5 | 2016-02-26 17:32:29 +0100 | [diff] [blame] | 308 | static int mlxsw_sp_port_module_info_get(struct mlxsw_sp *mlxsw_sp, |
| 309 | u8 local_port, u8 *p_module, |
| 310 | u8 *p_width) |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 311 | { |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 312 | char pmlp_pl[MLXSW_REG_PMLP_LEN]; |
| 313 | int err; |
| 314 | |
Ido Schimmel | 558c2d5 | 2016-02-26 17:32:29 +0100 | [diff] [blame] | 315 | mlxsw_reg_pmlp_pack(pmlp_pl, local_port); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 316 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl); |
| 317 | if (err) |
| 318 | return err; |
Ido Schimmel | 558c2d5 | 2016-02-26 17:32:29 +0100 | [diff] [blame] | 319 | *p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0); |
| 320 | *p_width = mlxsw_reg_pmlp_width_get(pmlp_pl); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 321 | return 0; |
| 322 | } |
| 323 | |
Ido Schimmel | 3e9b27b | 2016-02-26 17:32:28 +0100 | [diff] [blame] | 324 | static int mlxsw_sp_port_module_unmap(struct mlxsw_sp *mlxsw_sp, u8 local_port) |
| 325 | { |
| 326 | char pmlp_pl[MLXSW_REG_PMLP_LEN]; |
| 327 | |
| 328 | mlxsw_reg_pmlp_pack(pmlp_pl, local_port); |
| 329 | mlxsw_reg_pmlp_width_set(pmlp_pl, 0); |
| 330 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl); |
| 331 | } |
| 332 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 333 | static int mlxsw_sp_port_open(struct net_device *dev) |
| 334 | { |
| 335 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 336 | int err; |
| 337 | |
| 338 | err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true); |
| 339 | if (err) |
| 340 | return err; |
| 341 | netif_start_queue(dev); |
| 342 | return 0; |
| 343 | } |
| 344 | |
| 345 | static int mlxsw_sp_port_stop(struct net_device *dev) |
| 346 | { |
| 347 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 348 | |
| 349 | netif_stop_queue(dev); |
| 350 | return mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); |
| 351 | } |
| 352 | |
| 353 | static netdev_tx_t mlxsw_sp_port_xmit(struct sk_buff *skb, |
| 354 | struct net_device *dev) |
| 355 | { |
| 356 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 357 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 358 | struct mlxsw_sp_port_pcpu_stats *pcpu_stats; |
| 359 | const struct mlxsw_tx_info tx_info = { |
| 360 | .local_port = mlxsw_sp_port->local_port, |
| 361 | .is_emad = false, |
| 362 | }; |
| 363 | u64 len; |
| 364 | int err; |
| 365 | |
| 366 | if (mlxsw_core_skb_transmit_busy(mlxsw_sp, &tx_info)) |
| 367 | return NETDEV_TX_BUSY; |
| 368 | |
| 369 | if (unlikely(skb_headroom(skb) < MLXSW_TXHDR_LEN)) { |
| 370 | struct sk_buff *skb_orig = skb; |
| 371 | |
| 372 | skb = skb_realloc_headroom(skb, MLXSW_TXHDR_LEN); |
| 373 | if (!skb) { |
| 374 | this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped); |
| 375 | dev_kfree_skb_any(skb_orig); |
| 376 | return NETDEV_TX_OK; |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | if (eth_skb_pad(skb)) { |
| 381 | this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped); |
| 382 | return NETDEV_TX_OK; |
| 383 | } |
| 384 | |
| 385 | mlxsw_sp_txhdr_construct(skb, &tx_info); |
| 386 | len = skb->len; |
| 387 | /* Due to a race we might fail here because of a full queue. In that |
| 388 | * unlikely case we simply drop the packet. |
| 389 | */ |
| 390 | err = mlxsw_core_skb_transmit(mlxsw_sp, skb, &tx_info); |
| 391 | |
| 392 | if (!err) { |
| 393 | pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats); |
| 394 | u64_stats_update_begin(&pcpu_stats->syncp); |
| 395 | pcpu_stats->tx_packets++; |
| 396 | pcpu_stats->tx_bytes += len; |
| 397 | u64_stats_update_end(&pcpu_stats->syncp); |
| 398 | } else { |
| 399 | this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped); |
| 400 | dev_kfree_skb_any(skb); |
| 401 | } |
| 402 | return NETDEV_TX_OK; |
| 403 | } |
| 404 | |
Jiri Pirko | c5b9b51 | 2015-12-03 12:12:22 +0100 | [diff] [blame] | 405 | static void mlxsw_sp_set_rx_mode(struct net_device *dev) |
| 406 | { |
| 407 | } |
| 408 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 409 | static int mlxsw_sp_port_set_mac_address(struct net_device *dev, void *p) |
| 410 | { |
| 411 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 412 | struct sockaddr *addr = p; |
| 413 | int err; |
| 414 | |
| 415 | if (!is_valid_ether_addr(addr->sa_data)) |
| 416 | return -EADDRNOTAVAIL; |
| 417 | |
| 418 | err = mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr->sa_data); |
| 419 | if (err) |
| 420 | return err; |
| 421 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
| 422 | return 0; |
| 423 | } |
| 424 | |
| 425 | static int mlxsw_sp_port_change_mtu(struct net_device *dev, int mtu) |
| 426 | { |
| 427 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 428 | int err; |
| 429 | |
| 430 | err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, mtu); |
| 431 | if (err) |
| 432 | return err; |
| 433 | dev->mtu = mtu; |
| 434 | return 0; |
| 435 | } |
| 436 | |
| 437 | static struct rtnl_link_stats64 * |
| 438 | mlxsw_sp_port_get_stats64(struct net_device *dev, |
| 439 | struct rtnl_link_stats64 *stats) |
| 440 | { |
| 441 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 442 | struct mlxsw_sp_port_pcpu_stats *p; |
| 443 | u64 rx_packets, rx_bytes, tx_packets, tx_bytes; |
| 444 | u32 tx_dropped = 0; |
| 445 | unsigned int start; |
| 446 | int i; |
| 447 | |
| 448 | for_each_possible_cpu(i) { |
| 449 | p = per_cpu_ptr(mlxsw_sp_port->pcpu_stats, i); |
| 450 | do { |
| 451 | start = u64_stats_fetch_begin_irq(&p->syncp); |
| 452 | rx_packets = p->rx_packets; |
| 453 | rx_bytes = p->rx_bytes; |
| 454 | tx_packets = p->tx_packets; |
| 455 | tx_bytes = p->tx_bytes; |
| 456 | } while (u64_stats_fetch_retry_irq(&p->syncp, start)); |
| 457 | |
| 458 | stats->rx_packets += rx_packets; |
| 459 | stats->rx_bytes += rx_bytes; |
| 460 | stats->tx_packets += tx_packets; |
| 461 | stats->tx_bytes += tx_bytes; |
| 462 | /* tx_dropped is u32, updated without syncp protection. */ |
| 463 | tx_dropped += p->tx_dropped; |
| 464 | } |
| 465 | stats->tx_dropped = tx_dropped; |
| 466 | return stats; |
| 467 | } |
| 468 | |
| 469 | int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin, |
| 470 | u16 vid_end, bool is_member, bool untagged) |
| 471 | { |
| 472 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 473 | char *spvm_pl; |
| 474 | int err; |
| 475 | |
| 476 | spvm_pl = kmalloc(MLXSW_REG_SPVM_LEN, GFP_KERNEL); |
| 477 | if (!spvm_pl) |
| 478 | return -ENOMEM; |
| 479 | |
| 480 | mlxsw_reg_spvm_pack(spvm_pl, mlxsw_sp_port->local_port, vid_begin, |
| 481 | vid_end, is_member, untagged); |
| 482 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvm), spvm_pl); |
| 483 | kfree(spvm_pl); |
| 484 | return err; |
| 485 | } |
| 486 | |
| 487 | static int mlxsw_sp_port_vp_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port) |
| 488 | { |
| 489 | enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID; |
| 490 | u16 vid, last_visited_vid; |
| 491 | int err; |
| 492 | |
| 493 | for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) { |
| 494 | err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, true, vid, |
| 495 | vid); |
| 496 | if (err) { |
| 497 | last_visited_vid = vid; |
| 498 | goto err_port_vid_to_fid_set; |
| 499 | } |
| 500 | } |
| 501 | |
| 502 | err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, true); |
| 503 | if (err) { |
| 504 | last_visited_vid = VLAN_N_VID; |
| 505 | goto err_port_vid_to_fid_set; |
| 506 | } |
| 507 | |
| 508 | return 0; |
| 509 | |
| 510 | err_port_vid_to_fid_set: |
| 511 | for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid) |
| 512 | mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false, vid, |
| 513 | vid); |
| 514 | return err; |
| 515 | } |
| 516 | |
| 517 | static int mlxsw_sp_port_vlan_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port) |
| 518 | { |
| 519 | enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID; |
| 520 | u16 vid; |
| 521 | int err; |
| 522 | |
| 523 | err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false); |
| 524 | if (err) |
| 525 | return err; |
| 526 | |
| 527 | for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) { |
| 528 | err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false, |
| 529 | vid, vid); |
| 530 | if (err) |
| 531 | return err; |
| 532 | } |
| 533 | |
| 534 | return 0; |
| 535 | } |
| 536 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 537 | static struct mlxsw_sp_vfid * |
| 538 | mlxsw_sp_vfid_find(const struct mlxsw_sp *mlxsw_sp, u16 vid) |
| 539 | { |
| 540 | struct mlxsw_sp_vfid *vfid; |
| 541 | |
| 542 | list_for_each_entry(vfid, &mlxsw_sp->port_vfids.list, list) { |
| 543 | if (vfid->vid == vid) |
| 544 | return vfid; |
| 545 | } |
| 546 | |
| 547 | return NULL; |
| 548 | } |
| 549 | |
| 550 | static u16 mlxsw_sp_avail_vfid_get(const struct mlxsw_sp *mlxsw_sp) |
| 551 | { |
| 552 | return find_first_zero_bit(mlxsw_sp->port_vfids.mapped, |
| 553 | MLXSW_SP_VFID_PORT_MAX); |
| 554 | } |
| 555 | |
| 556 | static int __mlxsw_sp_vfid_create(struct mlxsw_sp *mlxsw_sp, u16 vfid) |
| 557 | { |
| 558 | u16 fid = mlxsw_sp_vfid_to_fid(vfid); |
| 559 | char sfmr_pl[MLXSW_REG_SFMR_LEN]; |
| 560 | |
| 561 | mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_CREATE_FID, fid, 0); |
| 562 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl); |
| 563 | } |
| 564 | |
| 565 | static void __mlxsw_sp_vfid_destroy(struct mlxsw_sp *mlxsw_sp, u16 vfid) |
| 566 | { |
| 567 | u16 fid = mlxsw_sp_vfid_to_fid(vfid); |
| 568 | char sfmr_pl[MLXSW_REG_SFMR_LEN]; |
| 569 | |
| 570 | mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_DESTROY_FID, fid, 0); |
| 571 | mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl); |
| 572 | } |
| 573 | |
| 574 | static struct mlxsw_sp_vfid *mlxsw_sp_vfid_create(struct mlxsw_sp *mlxsw_sp, |
| 575 | u16 vid) |
| 576 | { |
| 577 | struct device *dev = mlxsw_sp->bus_info->dev; |
| 578 | struct mlxsw_sp_vfid *vfid; |
| 579 | u16 n_vfid; |
| 580 | int err; |
| 581 | |
| 582 | n_vfid = mlxsw_sp_avail_vfid_get(mlxsw_sp); |
| 583 | if (n_vfid == MLXSW_SP_VFID_PORT_MAX) { |
| 584 | dev_err(dev, "No available vFIDs\n"); |
| 585 | return ERR_PTR(-ERANGE); |
| 586 | } |
| 587 | |
| 588 | err = __mlxsw_sp_vfid_create(mlxsw_sp, n_vfid); |
| 589 | if (err) { |
| 590 | dev_err(dev, "Failed to create vFID=%d\n", n_vfid); |
| 591 | return ERR_PTR(err); |
| 592 | } |
| 593 | |
| 594 | vfid = kzalloc(sizeof(*vfid), GFP_KERNEL); |
| 595 | if (!vfid) |
| 596 | goto err_allocate_vfid; |
| 597 | |
| 598 | vfid->vfid = n_vfid; |
| 599 | vfid->vid = vid; |
| 600 | |
| 601 | list_add(&vfid->list, &mlxsw_sp->port_vfids.list); |
| 602 | set_bit(n_vfid, mlxsw_sp->port_vfids.mapped); |
| 603 | |
| 604 | return vfid; |
| 605 | |
| 606 | err_allocate_vfid: |
| 607 | __mlxsw_sp_vfid_destroy(mlxsw_sp, n_vfid); |
| 608 | return ERR_PTR(-ENOMEM); |
| 609 | } |
| 610 | |
| 611 | static void mlxsw_sp_vfid_destroy(struct mlxsw_sp *mlxsw_sp, |
| 612 | struct mlxsw_sp_vfid *vfid) |
| 613 | { |
| 614 | clear_bit(vfid->vfid, mlxsw_sp->port_vfids.mapped); |
| 615 | list_del(&vfid->list); |
| 616 | |
| 617 | __mlxsw_sp_vfid_destroy(mlxsw_sp, vfid->vfid); |
| 618 | |
| 619 | kfree(vfid); |
| 620 | } |
| 621 | |
| 622 | static struct mlxsw_sp_port * |
| 623 | mlxsw_sp_port_vport_create(struct mlxsw_sp_port *mlxsw_sp_port, |
| 624 | struct mlxsw_sp_vfid *vfid) |
| 625 | { |
| 626 | struct mlxsw_sp_port *mlxsw_sp_vport; |
| 627 | |
| 628 | mlxsw_sp_vport = kzalloc(sizeof(*mlxsw_sp_vport), GFP_KERNEL); |
| 629 | if (!mlxsw_sp_vport) |
| 630 | return NULL; |
| 631 | |
| 632 | /* dev will be set correctly after the VLAN device is linked |
| 633 | * with the real device. In case of bridge SELF invocation, dev |
| 634 | * will remain as is. |
| 635 | */ |
| 636 | mlxsw_sp_vport->dev = mlxsw_sp_port->dev; |
| 637 | mlxsw_sp_vport->mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 638 | mlxsw_sp_vport->local_port = mlxsw_sp_port->local_port; |
| 639 | mlxsw_sp_vport->stp_state = BR_STATE_FORWARDING; |
Ido Schimmel | 272c447 | 2015-12-15 16:03:47 +0100 | [diff] [blame] | 640 | mlxsw_sp_vport->lagged = mlxsw_sp_port->lagged; |
| 641 | mlxsw_sp_vport->lag_id = mlxsw_sp_port->lag_id; |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 642 | mlxsw_sp_vport->vport.vfid = vfid; |
| 643 | mlxsw_sp_vport->vport.vid = vfid->vid; |
| 644 | |
| 645 | list_add(&mlxsw_sp_vport->vport.list, &mlxsw_sp_port->vports_list); |
| 646 | |
| 647 | return mlxsw_sp_vport; |
| 648 | } |
| 649 | |
| 650 | static void mlxsw_sp_port_vport_destroy(struct mlxsw_sp_port *mlxsw_sp_vport) |
| 651 | { |
| 652 | list_del(&mlxsw_sp_vport->vport.list); |
| 653 | kfree(mlxsw_sp_vport); |
| 654 | } |
| 655 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 656 | int mlxsw_sp_port_add_vid(struct net_device *dev, __be16 __always_unused proto, |
| 657 | u16 vid) |
| 658 | { |
| 659 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 660 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 661 | struct mlxsw_sp_port *mlxsw_sp_vport; |
| 662 | struct mlxsw_sp_vfid *vfid; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 663 | int err; |
| 664 | |
| 665 | /* VLAN 0 is added to HW filter when device goes up, but it is |
| 666 | * reserved in our case, so simply return. |
| 667 | */ |
| 668 | if (!vid) |
| 669 | return 0; |
| 670 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 671 | if (mlxsw_sp_port_vport_find(mlxsw_sp_port, vid)) { |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 672 | netdev_warn(dev, "VID=%d already configured\n", vid); |
| 673 | return 0; |
| 674 | } |
| 675 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 676 | vfid = mlxsw_sp_vfid_find(mlxsw_sp, vid); |
| 677 | if (!vfid) { |
| 678 | vfid = mlxsw_sp_vfid_create(mlxsw_sp, vid); |
| 679 | if (IS_ERR(vfid)) { |
| 680 | netdev_err(dev, "Failed to create vFID for VID=%d\n", |
| 681 | vid); |
| 682 | return PTR_ERR(vfid); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 683 | } |
| 684 | } |
| 685 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 686 | mlxsw_sp_vport = mlxsw_sp_port_vport_create(mlxsw_sp_port, vfid); |
| 687 | if (!mlxsw_sp_vport) { |
| 688 | netdev_err(dev, "Failed to create vPort for VID=%d\n", vid); |
| 689 | err = -ENOMEM; |
| 690 | goto err_port_vport_create; |
| 691 | } |
| 692 | |
| 693 | if (!vfid->nr_vports) { |
| 694 | err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, |
Ido Schimmel | 19ae612 | 2015-12-15 16:03:39 +0100 | [diff] [blame] | 695 | true, false); |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 696 | if (err) { |
| 697 | netdev_err(dev, "Failed to setup flooding for vFID=%d\n", |
| 698 | vfid->vfid); |
| 699 | goto err_vport_flood_set; |
| 700 | } |
| 701 | } |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 702 | |
| 703 | /* When adding the first VLAN interface on a bridged port we need to |
| 704 | * transition all the active 802.1Q bridge VLANs to use explicit |
| 705 | * {Port, VID} to FID mappings and set the port's mode to Virtual mode. |
| 706 | */ |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 707 | if (list_is_singular(&mlxsw_sp_port->vports_list)) { |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 708 | err = mlxsw_sp_port_vp_mode_trans(mlxsw_sp_port); |
| 709 | if (err) { |
| 710 | netdev_err(dev, "Failed to set to Virtual mode\n"); |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 711 | goto err_port_vp_mode_trans; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 712 | } |
| 713 | } |
| 714 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 715 | err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 716 | MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 717 | true, |
| 718 | mlxsw_sp_vfid_to_fid(vfid->vfid), |
| 719 | vid); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 720 | if (err) { |
| 721 | netdev_err(dev, "Failed to map {Port, VID=%d} to vFID=%d\n", |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 722 | vid, vfid->vfid); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 723 | goto err_port_vid_to_fid_set; |
| 724 | } |
| 725 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 726 | err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 727 | if (err) { |
| 728 | netdev_err(dev, "Failed to disable learning for VID=%d\n", vid); |
| 729 | goto err_port_vid_learning_set; |
| 730 | } |
| 731 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 732 | err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, true, false); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 733 | if (err) { |
| 734 | netdev_err(dev, "Failed to set VLAN membership for VID=%d\n", |
| 735 | vid); |
| 736 | goto err_port_add_vid; |
| 737 | } |
| 738 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 739 | err = mlxsw_sp_port_stp_state_set(mlxsw_sp_vport, vid, |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 740 | MLXSW_REG_SPMS_STATE_FORWARDING); |
| 741 | if (err) { |
| 742 | netdev_err(dev, "Failed to set STP state for VID=%d\n", vid); |
| 743 | goto err_port_stp_state_set; |
| 744 | } |
| 745 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 746 | vfid->nr_vports++; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 747 | |
| 748 | return 0; |
| 749 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 750 | err_port_stp_state_set: |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 751 | mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, false, false); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 752 | err_port_add_vid: |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 753 | mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 754 | err_port_vid_learning_set: |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 755 | mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 756 | MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, false, |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 757 | mlxsw_sp_vfid_to_fid(vfid->vfid), vid); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 758 | err_port_vid_to_fid_set: |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 759 | if (list_is_singular(&mlxsw_sp_port->vports_list)) |
| 760 | mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port); |
| 761 | err_port_vp_mode_trans: |
| 762 | if (!vfid->nr_vports) |
Ido Schimmel | 19ae612 | 2015-12-15 16:03:39 +0100 | [diff] [blame] | 763 | mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, false, |
| 764 | false); |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 765 | err_vport_flood_set: |
| 766 | mlxsw_sp_port_vport_destroy(mlxsw_sp_vport); |
| 767 | err_port_vport_create: |
| 768 | if (!vfid->nr_vports) |
| 769 | mlxsw_sp_vfid_destroy(mlxsw_sp, vfid); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 770 | return err; |
| 771 | } |
| 772 | |
| 773 | int mlxsw_sp_port_kill_vid(struct net_device *dev, |
| 774 | __be16 __always_unused proto, u16 vid) |
| 775 | { |
| 776 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 777 | struct mlxsw_sp_port *mlxsw_sp_vport; |
| 778 | struct mlxsw_sp_vfid *vfid; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 779 | int err; |
| 780 | |
| 781 | /* VLAN 0 is removed from HW filter when device goes down, but |
| 782 | * it is reserved in our case, so simply return. |
| 783 | */ |
| 784 | if (!vid) |
| 785 | return 0; |
| 786 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 787 | mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid); |
| 788 | if (!mlxsw_sp_vport) { |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 789 | netdev_warn(dev, "VID=%d does not exist\n", vid); |
| 790 | return 0; |
| 791 | } |
| 792 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 793 | vfid = mlxsw_sp_vport->vport.vfid; |
| 794 | |
| 795 | err = mlxsw_sp_port_stp_state_set(mlxsw_sp_vport, vid, |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 796 | MLXSW_REG_SPMS_STATE_DISCARDING); |
| 797 | if (err) { |
| 798 | netdev_err(dev, "Failed to set STP state for VID=%d\n", vid); |
| 799 | return err; |
| 800 | } |
| 801 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 802 | err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, false, false); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 803 | if (err) { |
| 804 | netdev_err(dev, "Failed to set VLAN membership for VID=%d\n", |
| 805 | vid); |
| 806 | return err; |
| 807 | } |
| 808 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 809 | err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 810 | if (err) { |
| 811 | netdev_err(dev, "Failed to enable learning for VID=%d\n", vid); |
| 812 | return err; |
| 813 | } |
| 814 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 815 | err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 816 | MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 817 | false, |
| 818 | mlxsw_sp_vfid_to_fid(vfid->vfid), |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 819 | vid); |
| 820 | if (err) { |
| 821 | netdev_err(dev, "Failed to invalidate {Port, VID=%d} to vFID=%d mapping\n", |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 822 | vid, vfid->vfid); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 823 | return err; |
| 824 | } |
| 825 | |
| 826 | /* When removing the last VLAN interface on a bridged port we need to |
| 827 | * transition all active 802.1Q bridge VLANs to use VID to FID |
| 828 | * mappings and set port's mode to VLAN mode. |
| 829 | */ |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 830 | if (list_is_singular(&mlxsw_sp_port->vports_list)) { |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 831 | err = mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port); |
| 832 | if (err) { |
| 833 | netdev_err(dev, "Failed to set to VLAN mode\n"); |
| 834 | return err; |
| 835 | } |
| 836 | } |
| 837 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 838 | vfid->nr_vports--; |
| 839 | mlxsw_sp_port_vport_destroy(mlxsw_sp_vport); |
| 840 | |
| 841 | /* Destroy the vFID if no vPorts are assigned to it anymore. */ |
| 842 | if (!vfid->nr_vports) |
| 843 | mlxsw_sp_vfid_destroy(mlxsw_sp_port->mlxsw_sp, vfid); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 844 | |
| 845 | return 0; |
| 846 | } |
| 847 | |
| 848 | static const struct net_device_ops mlxsw_sp_port_netdev_ops = { |
| 849 | .ndo_open = mlxsw_sp_port_open, |
| 850 | .ndo_stop = mlxsw_sp_port_stop, |
| 851 | .ndo_start_xmit = mlxsw_sp_port_xmit, |
Jiri Pirko | c5b9b51 | 2015-12-03 12:12:22 +0100 | [diff] [blame] | 852 | .ndo_set_rx_mode = mlxsw_sp_set_rx_mode, |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 853 | .ndo_set_mac_address = mlxsw_sp_port_set_mac_address, |
| 854 | .ndo_change_mtu = mlxsw_sp_port_change_mtu, |
| 855 | .ndo_get_stats64 = mlxsw_sp_port_get_stats64, |
| 856 | .ndo_vlan_rx_add_vid = mlxsw_sp_port_add_vid, |
| 857 | .ndo_vlan_rx_kill_vid = mlxsw_sp_port_kill_vid, |
| 858 | .ndo_fdb_add = switchdev_port_fdb_add, |
| 859 | .ndo_fdb_del = switchdev_port_fdb_del, |
| 860 | .ndo_fdb_dump = switchdev_port_fdb_dump, |
| 861 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, |
| 862 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
| 863 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, |
| 864 | }; |
| 865 | |
| 866 | static void mlxsw_sp_port_get_drvinfo(struct net_device *dev, |
| 867 | struct ethtool_drvinfo *drvinfo) |
| 868 | { |
| 869 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 870 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 871 | |
| 872 | strlcpy(drvinfo->driver, mlxsw_sp_driver_name, sizeof(drvinfo->driver)); |
| 873 | strlcpy(drvinfo->version, mlxsw_sp_driver_version, |
| 874 | sizeof(drvinfo->version)); |
| 875 | snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), |
| 876 | "%d.%d.%d", |
| 877 | mlxsw_sp->bus_info->fw_rev.major, |
| 878 | mlxsw_sp->bus_info->fw_rev.minor, |
| 879 | mlxsw_sp->bus_info->fw_rev.subminor); |
| 880 | strlcpy(drvinfo->bus_info, mlxsw_sp->bus_info->device_name, |
| 881 | sizeof(drvinfo->bus_info)); |
| 882 | } |
| 883 | |
| 884 | struct mlxsw_sp_port_hw_stats { |
| 885 | char str[ETH_GSTRING_LEN]; |
| 886 | u64 (*getter)(char *payload); |
| 887 | }; |
| 888 | |
| 889 | static const struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_stats[] = { |
| 890 | { |
| 891 | .str = "a_frames_transmitted_ok", |
| 892 | .getter = mlxsw_reg_ppcnt_a_frames_transmitted_ok_get, |
| 893 | }, |
| 894 | { |
| 895 | .str = "a_frames_received_ok", |
| 896 | .getter = mlxsw_reg_ppcnt_a_frames_received_ok_get, |
| 897 | }, |
| 898 | { |
| 899 | .str = "a_frame_check_sequence_errors", |
| 900 | .getter = mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get, |
| 901 | }, |
| 902 | { |
| 903 | .str = "a_alignment_errors", |
| 904 | .getter = mlxsw_reg_ppcnt_a_alignment_errors_get, |
| 905 | }, |
| 906 | { |
| 907 | .str = "a_octets_transmitted_ok", |
| 908 | .getter = mlxsw_reg_ppcnt_a_octets_transmitted_ok_get, |
| 909 | }, |
| 910 | { |
| 911 | .str = "a_octets_received_ok", |
| 912 | .getter = mlxsw_reg_ppcnt_a_octets_received_ok_get, |
| 913 | }, |
| 914 | { |
| 915 | .str = "a_multicast_frames_xmitted_ok", |
| 916 | .getter = mlxsw_reg_ppcnt_a_multicast_frames_xmitted_ok_get, |
| 917 | }, |
| 918 | { |
| 919 | .str = "a_broadcast_frames_xmitted_ok", |
| 920 | .getter = mlxsw_reg_ppcnt_a_broadcast_frames_xmitted_ok_get, |
| 921 | }, |
| 922 | { |
| 923 | .str = "a_multicast_frames_received_ok", |
| 924 | .getter = mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get, |
| 925 | }, |
| 926 | { |
| 927 | .str = "a_broadcast_frames_received_ok", |
| 928 | .getter = mlxsw_reg_ppcnt_a_broadcast_frames_received_ok_get, |
| 929 | }, |
| 930 | { |
| 931 | .str = "a_in_range_length_errors", |
| 932 | .getter = mlxsw_reg_ppcnt_a_in_range_length_errors_get, |
| 933 | }, |
| 934 | { |
| 935 | .str = "a_out_of_range_length_field", |
| 936 | .getter = mlxsw_reg_ppcnt_a_out_of_range_length_field_get, |
| 937 | }, |
| 938 | { |
| 939 | .str = "a_frame_too_long_errors", |
| 940 | .getter = mlxsw_reg_ppcnt_a_frame_too_long_errors_get, |
| 941 | }, |
| 942 | { |
| 943 | .str = "a_symbol_error_during_carrier", |
| 944 | .getter = mlxsw_reg_ppcnt_a_symbol_error_during_carrier_get, |
| 945 | }, |
| 946 | { |
| 947 | .str = "a_mac_control_frames_transmitted", |
| 948 | .getter = mlxsw_reg_ppcnt_a_mac_control_frames_transmitted_get, |
| 949 | }, |
| 950 | { |
| 951 | .str = "a_mac_control_frames_received", |
| 952 | .getter = mlxsw_reg_ppcnt_a_mac_control_frames_received_get, |
| 953 | }, |
| 954 | { |
| 955 | .str = "a_unsupported_opcodes_received", |
| 956 | .getter = mlxsw_reg_ppcnt_a_unsupported_opcodes_received_get, |
| 957 | }, |
| 958 | { |
| 959 | .str = "a_pause_mac_ctrl_frames_received", |
| 960 | .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_received_get, |
| 961 | }, |
| 962 | { |
| 963 | .str = "a_pause_mac_ctrl_frames_xmitted", |
| 964 | .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_transmitted_get, |
| 965 | }, |
| 966 | }; |
| 967 | |
| 968 | #define MLXSW_SP_PORT_HW_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_stats) |
| 969 | |
| 970 | static void mlxsw_sp_port_get_strings(struct net_device *dev, |
| 971 | u32 stringset, u8 *data) |
| 972 | { |
| 973 | u8 *p = data; |
| 974 | int i; |
| 975 | |
| 976 | switch (stringset) { |
| 977 | case ETH_SS_STATS: |
| 978 | for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++) { |
| 979 | memcpy(p, mlxsw_sp_port_hw_stats[i].str, |
| 980 | ETH_GSTRING_LEN); |
| 981 | p += ETH_GSTRING_LEN; |
| 982 | } |
| 983 | break; |
| 984 | } |
| 985 | } |
| 986 | |
Ido Schimmel | 3a66ee3 | 2015-11-27 13:45:55 +0100 | [diff] [blame] | 987 | static int mlxsw_sp_port_set_phys_id(struct net_device *dev, |
| 988 | enum ethtool_phys_id_state state) |
| 989 | { |
| 990 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 991 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 992 | char mlcr_pl[MLXSW_REG_MLCR_LEN]; |
| 993 | bool active; |
| 994 | |
| 995 | switch (state) { |
| 996 | case ETHTOOL_ID_ACTIVE: |
| 997 | active = true; |
| 998 | break; |
| 999 | case ETHTOOL_ID_INACTIVE: |
| 1000 | active = false; |
| 1001 | break; |
| 1002 | default: |
| 1003 | return -EOPNOTSUPP; |
| 1004 | } |
| 1005 | |
| 1006 | mlxsw_reg_mlcr_pack(mlcr_pl, mlxsw_sp_port->local_port, active); |
| 1007 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mlcr), mlcr_pl); |
| 1008 | } |
| 1009 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1010 | static void mlxsw_sp_port_get_stats(struct net_device *dev, |
| 1011 | struct ethtool_stats *stats, u64 *data) |
| 1012 | { |
| 1013 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 1014 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 1015 | char ppcnt_pl[MLXSW_REG_PPCNT_LEN]; |
| 1016 | int i; |
| 1017 | int err; |
| 1018 | |
| 1019 | mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port); |
| 1020 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl); |
| 1021 | for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++) |
| 1022 | data[i] = !err ? mlxsw_sp_port_hw_stats[i].getter(ppcnt_pl) : 0; |
| 1023 | } |
| 1024 | |
| 1025 | static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset) |
| 1026 | { |
| 1027 | switch (sset) { |
| 1028 | case ETH_SS_STATS: |
| 1029 | return MLXSW_SP_PORT_HW_STATS_LEN; |
| 1030 | default: |
| 1031 | return -EOPNOTSUPP; |
| 1032 | } |
| 1033 | } |
| 1034 | |
| 1035 | struct mlxsw_sp_port_link_mode { |
| 1036 | u32 mask; |
| 1037 | u32 supported; |
| 1038 | u32 advertised; |
| 1039 | u32 speed; |
| 1040 | }; |
| 1041 | |
| 1042 | static const struct mlxsw_sp_port_link_mode mlxsw_sp_port_link_mode[] = { |
| 1043 | { |
| 1044 | .mask = MLXSW_REG_PTYS_ETH_SPEED_100BASE_T, |
| 1045 | .supported = SUPPORTED_100baseT_Full, |
| 1046 | .advertised = ADVERTISED_100baseT_Full, |
| 1047 | .speed = 100, |
| 1048 | }, |
| 1049 | { |
| 1050 | .mask = MLXSW_REG_PTYS_ETH_SPEED_100BASE_TX, |
| 1051 | .speed = 100, |
| 1052 | }, |
| 1053 | { |
| 1054 | .mask = MLXSW_REG_PTYS_ETH_SPEED_SGMII | |
| 1055 | MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX, |
| 1056 | .supported = SUPPORTED_1000baseKX_Full, |
| 1057 | .advertised = ADVERTISED_1000baseKX_Full, |
| 1058 | .speed = 1000, |
| 1059 | }, |
| 1060 | { |
| 1061 | .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_T, |
| 1062 | .supported = SUPPORTED_10000baseT_Full, |
| 1063 | .advertised = ADVERTISED_10000baseT_Full, |
| 1064 | .speed = 10000, |
| 1065 | }, |
| 1066 | { |
| 1067 | .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4 | |
| 1068 | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4, |
| 1069 | .supported = SUPPORTED_10000baseKX4_Full, |
| 1070 | .advertised = ADVERTISED_10000baseKX4_Full, |
| 1071 | .speed = 10000, |
| 1072 | }, |
| 1073 | { |
| 1074 | .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR | |
| 1075 | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR | |
| 1076 | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR | |
| 1077 | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR, |
| 1078 | .supported = SUPPORTED_10000baseKR_Full, |
| 1079 | .advertised = ADVERTISED_10000baseKR_Full, |
| 1080 | .speed = 10000, |
| 1081 | }, |
| 1082 | { |
| 1083 | .mask = MLXSW_REG_PTYS_ETH_SPEED_20GBASE_KR2, |
| 1084 | .supported = SUPPORTED_20000baseKR2_Full, |
| 1085 | .advertised = ADVERTISED_20000baseKR2_Full, |
| 1086 | .speed = 20000, |
| 1087 | }, |
| 1088 | { |
| 1089 | .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4, |
| 1090 | .supported = SUPPORTED_40000baseCR4_Full, |
| 1091 | .advertised = ADVERTISED_40000baseCR4_Full, |
| 1092 | .speed = 40000, |
| 1093 | }, |
| 1094 | { |
| 1095 | .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4, |
| 1096 | .supported = SUPPORTED_40000baseKR4_Full, |
| 1097 | .advertised = ADVERTISED_40000baseKR4_Full, |
| 1098 | .speed = 40000, |
| 1099 | }, |
| 1100 | { |
| 1101 | .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4, |
| 1102 | .supported = SUPPORTED_40000baseSR4_Full, |
| 1103 | .advertised = ADVERTISED_40000baseSR4_Full, |
| 1104 | .speed = 40000, |
| 1105 | }, |
| 1106 | { |
| 1107 | .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4, |
| 1108 | .supported = SUPPORTED_40000baseLR4_Full, |
| 1109 | .advertised = ADVERTISED_40000baseLR4_Full, |
| 1110 | .speed = 40000, |
| 1111 | }, |
| 1112 | { |
| 1113 | .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR | |
| 1114 | MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR | |
| 1115 | MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR, |
| 1116 | .speed = 25000, |
| 1117 | }, |
| 1118 | { |
| 1119 | .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR4 | |
| 1120 | MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2 | |
| 1121 | MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2, |
| 1122 | .speed = 50000, |
| 1123 | }, |
| 1124 | { |
| 1125 | .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4, |
| 1126 | .supported = SUPPORTED_56000baseKR4_Full, |
| 1127 | .advertised = ADVERTISED_56000baseKR4_Full, |
| 1128 | .speed = 56000, |
| 1129 | }, |
| 1130 | { |
| 1131 | .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4 | |
| 1132 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 | |
| 1133 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 | |
| 1134 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4, |
| 1135 | .speed = 100000, |
| 1136 | }, |
| 1137 | }; |
| 1138 | |
| 1139 | #define MLXSW_SP_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp_port_link_mode) |
| 1140 | |
| 1141 | static u32 mlxsw_sp_from_ptys_supported_port(u32 ptys_eth_proto) |
| 1142 | { |
| 1143 | if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR | |
| 1144 | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR | |
| 1145 | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 | |
| 1146 | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 | |
| 1147 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 | |
| 1148 | MLXSW_REG_PTYS_ETH_SPEED_SGMII)) |
| 1149 | return SUPPORTED_FIBRE; |
| 1150 | |
| 1151 | if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR | |
| 1152 | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 | |
| 1153 | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 | |
| 1154 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 | |
| 1155 | MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX)) |
| 1156 | return SUPPORTED_Backplane; |
| 1157 | return 0; |
| 1158 | } |
| 1159 | |
| 1160 | static u32 mlxsw_sp_from_ptys_supported_link(u32 ptys_eth_proto) |
| 1161 | { |
| 1162 | u32 modes = 0; |
| 1163 | int i; |
| 1164 | |
| 1165 | for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { |
| 1166 | if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) |
| 1167 | modes |= mlxsw_sp_port_link_mode[i].supported; |
| 1168 | } |
| 1169 | return modes; |
| 1170 | } |
| 1171 | |
| 1172 | static u32 mlxsw_sp_from_ptys_advert_link(u32 ptys_eth_proto) |
| 1173 | { |
| 1174 | u32 modes = 0; |
| 1175 | int i; |
| 1176 | |
| 1177 | for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { |
| 1178 | if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) |
| 1179 | modes |= mlxsw_sp_port_link_mode[i].advertised; |
| 1180 | } |
| 1181 | return modes; |
| 1182 | } |
| 1183 | |
| 1184 | static void mlxsw_sp_from_ptys_speed_duplex(bool carrier_ok, u32 ptys_eth_proto, |
| 1185 | struct ethtool_cmd *cmd) |
| 1186 | { |
| 1187 | u32 speed = SPEED_UNKNOWN; |
| 1188 | u8 duplex = DUPLEX_UNKNOWN; |
| 1189 | int i; |
| 1190 | |
| 1191 | if (!carrier_ok) |
| 1192 | goto out; |
| 1193 | |
| 1194 | for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { |
| 1195 | if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) { |
| 1196 | speed = mlxsw_sp_port_link_mode[i].speed; |
| 1197 | duplex = DUPLEX_FULL; |
| 1198 | break; |
| 1199 | } |
| 1200 | } |
| 1201 | out: |
| 1202 | ethtool_cmd_speed_set(cmd, speed); |
| 1203 | cmd->duplex = duplex; |
| 1204 | } |
| 1205 | |
| 1206 | static u8 mlxsw_sp_port_connector_port(u32 ptys_eth_proto) |
| 1207 | { |
| 1208 | if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR | |
| 1209 | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 | |
| 1210 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 | |
| 1211 | MLXSW_REG_PTYS_ETH_SPEED_SGMII)) |
| 1212 | return PORT_FIBRE; |
| 1213 | |
| 1214 | if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR | |
| 1215 | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 | |
| 1216 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4)) |
| 1217 | return PORT_DA; |
| 1218 | |
| 1219 | if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR | |
| 1220 | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 | |
| 1221 | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 | |
| 1222 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4)) |
| 1223 | return PORT_NONE; |
| 1224 | |
| 1225 | return PORT_OTHER; |
| 1226 | } |
| 1227 | |
| 1228 | static int mlxsw_sp_port_get_settings(struct net_device *dev, |
| 1229 | struct ethtool_cmd *cmd) |
| 1230 | { |
| 1231 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 1232 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 1233 | char ptys_pl[MLXSW_REG_PTYS_LEN]; |
| 1234 | u32 eth_proto_cap; |
| 1235 | u32 eth_proto_admin; |
| 1236 | u32 eth_proto_oper; |
| 1237 | int err; |
| 1238 | |
| 1239 | mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0); |
| 1240 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); |
| 1241 | if (err) { |
| 1242 | netdev_err(dev, "Failed to get proto"); |
| 1243 | return err; |
| 1244 | } |
| 1245 | mlxsw_reg_ptys_unpack(ptys_pl, ð_proto_cap, |
| 1246 | ð_proto_admin, ð_proto_oper); |
| 1247 | |
| 1248 | cmd->supported = mlxsw_sp_from_ptys_supported_port(eth_proto_cap) | |
| 1249 | mlxsw_sp_from_ptys_supported_link(eth_proto_cap) | |
| 1250 | SUPPORTED_Pause | SUPPORTED_Asym_Pause; |
| 1251 | cmd->advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_admin); |
| 1252 | mlxsw_sp_from_ptys_speed_duplex(netif_carrier_ok(dev), |
| 1253 | eth_proto_oper, cmd); |
| 1254 | |
| 1255 | eth_proto_oper = eth_proto_oper ? eth_proto_oper : eth_proto_cap; |
| 1256 | cmd->port = mlxsw_sp_port_connector_port(eth_proto_oper); |
| 1257 | cmd->lp_advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_oper); |
| 1258 | |
| 1259 | cmd->transceiver = XCVR_INTERNAL; |
| 1260 | return 0; |
| 1261 | } |
| 1262 | |
| 1263 | static u32 mlxsw_sp_to_ptys_advert_link(u32 advertising) |
| 1264 | { |
| 1265 | u32 ptys_proto = 0; |
| 1266 | int i; |
| 1267 | |
| 1268 | for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { |
| 1269 | if (advertising & mlxsw_sp_port_link_mode[i].advertised) |
| 1270 | ptys_proto |= mlxsw_sp_port_link_mode[i].mask; |
| 1271 | } |
| 1272 | return ptys_proto; |
| 1273 | } |
| 1274 | |
| 1275 | static u32 mlxsw_sp_to_ptys_speed(u32 speed) |
| 1276 | { |
| 1277 | u32 ptys_proto = 0; |
| 1278 | int i; |
| 1279 | |
| 1280 | for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { |
| 1281 | if (speed == mlxsw_sp_port_link_mode[i].speed) |
| 1282 | ptys_proto |= mlxsw_sp_port_link_mode[i].mask; |
| 1283 | } |
| 1284 | return ptys_proto; |
| 1285 | } |
| 1286 | |
| 1287 | static int mlxsw_sp_port_set_settings(struct net_device *dev, |
| 1288 | struct ethtool_cmd *cmd) |
| 1289 | { |
| 1290 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 1291 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 1292 | char ptys_pl[MLXSW_REG_PTYS_LEN]; |
| 1293 | u32 speed; |
| 1294 | u32 eth_proto_new; |
| 1295 | u32 eth_proto_cap; |
| 1296 | u32 eth_proto_admin; |
| 1297 | bool is_up; |
| 1298 | int err; |
| 1299 | |
| 1300 | speed = ethtool_cmd_speed(cmd); |
| 1301 | |
| 1302 | eth_proto_new = cmd->autoneg == AUTONEG_ENABLE ? |
| 1303 | mlxsw_sp_to_ptys_advert_link(cmd->advertising) : |
| 1304 | mlxsw_sp_to_ptys_speed(speed); |
| 1305 | |
| 1306 | mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0); |
| 1307 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); |
| 1308 | if (err) { |
| 1309 | netdev_err(dev, "Failed to get proto"); |
| 1310 | return err; |
| 1311 | } |
| 1312 | mlxsw_reg_ptys_unpack(ptys_pl, ð_proto_cap, ð_proto_admin, NULL); |
| 1313 | |
| 1314 | eth_proto_new = eth_proto_new & eth_proto_cap; |
| 1315 | if (!eth_proto_new) { |
| 1316 | netdev_err(dev, "Not supported proto admin requested"); |
| 1317 | return -EINVAL; |
| 1318 | } |
| 1319 | if (eth_proto_new == eth_proto_admin) |
| 1320 | return 0; |
| 1321 | |
| 1322 | mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, eth_proto_new); |
| 1323 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); |
| 1324 | if (err) { |
| 1325 | netdev_err(dev, "Failed to set proto admin"); |
| 1326 | return err; |
| 1327 | } |
| 1328 | |
| 1329 | err = mlxsw_sp_port_oper_status_get(mlxsw_sp_port, &is_up); |
| 1330 | if (err) { |
| 1331 | netdev_err(dev, "Failed to get oper status"); |
| 1332 | return err; |
| 1333 | } |
| 1334 | if (!is_up) |
| 1335 | return 0; |
| 1336 | |
| 1337 | err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); |
| 1338 | if (err) { |
| 1339 | netdev_err(dev, "Failed to set admin status"); |
| 1340 | return err; |
| 1341 | } |
| 1342 | |
| 1343 | err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true); |
| 1344 | if (err) { |
| 1345 | netdev_err(dev, "Failed to set admin status"); |
| 1346 | return err; |
| 1347 | } |
| 1348 | |
| 1349 | return 0; |
| 1350 | } |
| 1351 | |
| 1352 | static const struct ethtool_ops mlxsw_sp_port_ethtool_ops = { |
| 1353 | .get_drvinfo = mlxsw_sp_port_get_drvinfo, |
| 1354 | .get_link = ethtool_op_get_link, |
| 1355 | .get_strings = mlxsw_sp_port_get_strings, |
Ido Schimmel | 3a66ee3 | 2015-11-27 13:45:55 +0100 | [diff] [blame] | 1356 | .set_phys_id = mlxsw_sp_port_set_phys_id, |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1357 | .get_ethtool_stats = mlxsw_sp_port_get_stats, |
| 1358 | .get_sset_count = mlxsw_sp_port_get_sset_count, |
| 1359 | .get_settings = mlxsw_sp_port_get_settings, |
| 1360 | .set_settings = mlxsw_sp_port_set_settings, |
| 1361 | }; |
| 1362 | |
| 1363 | static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port) |
| 1364 | { |
Jiri Pirko | c474550 | 2016-02-26 17:32:26 +0100 | [diff] [blame] | 1365 | struct devlink *devlink = priv_to_devlink(mlxsw_sp->core); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1366 | struct mlxsw_sp_port *mlxsw_sp_port; |
Jiri Pirko | c474550 | 2016-02-26 17:32:26 +0100 | [diff] [blame] | 1367 | struct devlink_port *devlink_port; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1368 | struct net_device *dev; |
Ido Schimmel | bd40e9d | 2015-12-15 16:03:36 +0100 | [diff] [blame] | 1369 | size_t bytes; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1370 | int err; |
| 1371 | |
| 1372 | dev = alloc_etherdev(sizeof(struct mlxsw_sp_port)); |
| 1373 | if (!dev) |
| 1374 | return -ENOMEM; |
| 1375 | mlxsw_sp_port = netdev_priv(dev); |
| 1376 | mlxsw_sp_port->dev = dev; |
| 1377 | mlxsw_sp_port->mlxsw_sp = mlxsw_sp; |
| 1378 | mlxsw_sp_port->local_port = local_port; |
Ido Schimmel | bd40e9d | 2015-12-15 16:03:36 +0100 | [diff] [blame] | 1379 | bytes = DIV_ROUND_UP(VLAN_N_VID, BITS_PER_BYTE); |
| 1380 | mlxsw_sp_port->active_vlans = kzalloc(bytes, GFP_KERNEL); |
| 1381 | if (!mlxsw_sp_port->active_vlans) { |
| 1382 | err = -ENOMEM; |
| 1383 | goto err_port_active_vlans_alloc; |
| 1384 | } |
Elad Raz | fc1273a | 2016-01-06 13:01:11 +0100 | [diff] [blame] | 1385 | mlxsw_sp_port->untagged_vlans = kzalloc(bytes, GFP_KERNEL); |
| 1386 | if (!mlxsw_sp_port->untagged_vlans) { |
| 1387 | err = -ENOMEM; |
| 1388 | goto err_port_untagged_vlans_alloc; |
| 1389 | } |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 1390 | INIT_LIST_HEAD(&mlxsw_sp_port->vports_list); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1391 | |
| 1392 | mlxsw_sp_port->pcpu_stats = |
| 1393 | netdev_alloc_pcpu_stats(struct mlxsw_sp_port_pcpu_stats); |
| 1394 | if (!mlxsw_sp_port->pcpu_stats) { |
| 1395 | err = -ENOMEM; |
| 1396 | goto err_alloc_stats; |
| 1397 | } |
| 1398 | |
| 1399 | dev->netdev_ops = &mlxsw_sp_port_netdev_ops; |
| 1400 | dev->ethtool_ops = &mlxsw_sp_port_ethtool_ops; |
| 1401 | |
| 1402 | err = mlxsw_sp_port_dev_addr_init(mlxsw_sp_port); |
| 1403 | if (err) { |
| 1404 | dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unable to init port mac address\n", |
| 1405 | mlxsw_sp_port->local_port); |
| 1406 | goto err_dev_addr_init; |
| 1407 | } |
| 1408 | |
| 1409 | netif_carrier_off(dev); |
| 1410 | |
| 1411 | dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_LLTX | NETIF_F_SG | |
| 1412 | NETIF_F_HW_VLAN_CTAG_FILTER; |
| 1413 | |
| 1414 | /* Each packet needs to have a Tx header (metadata) on top all other |
| 1415 | * headers. |
| 1416 | */ |
| 1417 | dev->hard_header_len += MLXSW_TXHDR_LEN; |
| 1418 | |
Jiri Pirko | c474550 | 2016-02-26 17:32:26 +0100 | [diff] [blame] | 1419 | devlink_port = &mlxsw_sp_port->devlink_port; |
| 1420 | err = devlink_port_register(devlink, devlink_port, local_port); |
| 1421 | if (err) { |
| 1422 | dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to register devlink port\n", |
| 1423 | mlxsw_sp_port->local_port); |
| 1424 | goto err_devlink_port_register; |
| 1425 | } |
| 1426 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1427 | err = mlxsw_sp_port_system_port_mapping_set(mlxsw_sp_port); |
| 1428 | if (err) { |
| 1429 | dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set system port mapping\n", |
| 1430 | mlxsw_sp_port->local_port); |
| 1431 | goto err_port_system_port_mapping_set; |
| 1432 | } |
| 1433 | |
| 1434 | err = mlxsw_sp_port_swid_set(mlxsw_sp_port, 0); |
| 1435 | if (err) { |
| 1436 | dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set SWID\n", |
| 1437 | mlxsw_sp_port->local_port); |
| 1438 | goto err_port_swid_set; |
| 1439 | } |
| 1440 | |
| 1441 | err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, ETH_DATA_LEN); |
| 1442 | if (err) { |
| 1443 | dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set MTU\n", |
| 1444 | mlxsw_sp_port->local_port); |
| 1445 | goto err_port_mtu_set; |
| 1446 | } |
| 1447 | |
| 1448 | err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); |
| 1449 | if (err) |
| 1450 | goto err_port_admin_status_set; |
| 1451 | |
| 1452 | err = mlxsw_sp_port_buffers_init(mlxsw_sp_port); |
| 1453 | if (err) { |
| 1454 | dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize buffers\n", |
| 1455 | mlxsw_sp_port->local_port); |
| 1456 | goto err_port_buffers_init; |
| 1457 | } |
| 1458 | |
| 1459 | mlxsw_sp_port_switchdev_init(mlxsw_sp_port); |
| 1460 | err = register_netdev(dev); |
| 1461 | if (err) { |
| 1462 | dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to register netdev\n", |
| 1463 | mlxsw_sp_port->local_port); |
| 1464 | goto err_register_netdev; |
| 1465 | } |
| 1466 | |
Jiri Pirko | c474550 | 2016-02-26 17:32:26 +0100 | [diff] [blame] | 1467 | devlink_port_type_eth_set(devlink_port, dev); |
| 1468 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1469 | err = mlxsw_sp_port_vlan_init(mlxsw_sp_port); |
| 1470 | if (err) |
| 1471 | goto err_port_vlan_init; |
| 1472 | |
| 1473 | mlxsw_sp->ports[local_port] = mlxsw_sp_port; |
| 1474 | return 0; |
| 1475 | |
| 1476 | err_port_vlan_init: |
| 1477 | unregister_netdev(dev); |
| 1478 | err_register_netdev: |
| 1479 | err_port_buffers_init: |
| 1480 | err_port_admin_status_set: |
| 1481 | err_port_mtu_set: |
| 1482 | err_port_swid_set: |
| 1483 | err_port_system_port_mapping_set: |
Jiri Pirko | c474550 | 2016-02-26 17:32:26 +0100 | [diff] [blame] | 1484 | devlink_port_unregister(&mlxsw_sp_port->devlink_port); |
| 1485 | err_devlink_port_register: |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1486 | err_dev_addr_init: |
| 1487 | free_percpu(mlxsw_sp_port->pcpu_stats); |
| 1488 | err_alloc_stats: |
Elad Raz | fc1273a | 2016-01-06 13:01:11 +0100 | [diff] [blame] | 1489 | kfree(mlxsw_sp_port->untagged_vlans); |
| 1490 | err_port_untagged_vlans_alloc: |
Ido Schimmel | bd40e9d | 2015-12-15 16:03:36 +0100 | [diff] [blame] | 1491 | kfree(mlxsw_sp_port->active_vlans); |
| 1492 | err_port_active_vlans_alloc: |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1493 | free_netdev(dev); |
| 1494 | return err; |
| 1495 | } |
| 1496 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 1497 | static void mlxsw_sp_port_vports_fini(struct mlxsw_sp_port *mlxsw_sp_port) |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1498 | { |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 1499 | struct net_device *dev = mlxsw_sp_port->dev; |
| 1500 | struct mlxsw_sp_port *mlxsw_sp_vport, *tmp; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1501 | |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 1502 | list_for_each_entry_safe(mlxsw_sp_vport, tmp, |
| 1503 | &mlxsw_sp_port->vports_list, vport.list) { |
| 1504 | u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport); |
| 1505 | |
| 1506 | /* vPorts created for VLAN devices should already be gone |
| 1507 | * by now, since we unregistered the port netdev. |
| 1508 | */ |
| 1509 | WARN_ON(is_vlan_dev(mlxsw_sp_vport->dev)); |
| 1510 | mlxsw_sp_port_kill_vid(dev, 0, vid); |
| 1511 | } |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1512 | } |
| 1513 | |
| 1514 | static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port) |
| 1515 | { |
| 1516 | struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port]; |
Jiri Pirko | c474550 | 2016-02-26 17:32:26 +0100 | [diff] [blame] | 1517 | struct devlink_port *devlink_port; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1518 | |
| 1519 | if (!mlxsw_sp_port) |
| 1520 | return; |
Ido Schimmel | a133318 | 2016-02-26 17:32:30 +0100 | [diff] [blame^] | 1521 | mlxsw_sp->ports[local_port] = NULL; |
Jiri Pirko | c474550 | 2016-02-26 17:32:26 +0100 | [diff] [blame] | 1522 | devlink_port = &mlxsw_sp_port->devlink_port; |
| 1523 | devlink_port_type_clear(devlink_port); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1524 | unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */ |
Jiri Pirko | c474550 | 2016-02-26 17:32:26 +0100 | [diff] [blame] | 1525 | devlink_port_unregister(devlink_port); |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 1526 | mlxsw_sp_port_vports_fini(mlxsw_sp_port); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1527 | mlxsw_sp_port_switchdev_fini(mlxsw_sp_port); |
Ido Schimmel | 3e9b27b | 2016-02-26 17:32:28 +0100 | [diff] [blame] | 1528 | mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT); |
| 1529 | mlxsw_sp_port_module_unmap(mlxsw_sp, mlxsw_sp_port->local_port); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1530 | free_percpu(mlxsw_sp_port->pcpu_stats); |
Elad Raz | fc1273a | 2016-01-06 13:01:11 +0100 | [diff] [blame] | 1531 | kfree(mlxsw_sp_port->untagged_vlans); |
Ido Schimmel | bd40e9d | 2015-12-15 16:03:36 +0100 | [diff] [blame] | 1532 | kfree(mlxsw_sp_port->active_vlans); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1533 | free_netdev(mlxsw_sp_port->dev); |
| 1534 | } |
| 1535 | |
| 1536 | static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp) |
| 1537 | { |
| 1538 | int i; |
| 1539 | |
| 1540 | for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++) |
| 1541 | mlxsw_sp_port_remove(mlxsw_sp, i); |
| 1542 | kfree(mlxsw_sp->ports); |
| 1543 | } |
| 1544 | |
| 1545 | static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp) |
| 1546 | { |
| 1547 | size_t alloc_size; |
Ido Schimmel | 558c2d5 | 2016-02-26 17:32:29 +0100 | [diff] [blame] | 1548 | u8 module, width; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1549 | int i; |
| 1550 | int err; |
| 1551 | |
| 1552 | alloc_size = sizeof(struct mlxsw_sp_port *) * MLXSW_PORT_MAX_PORTS; |
| 1553 | mlxsw_sp->ports = kzalloc(alloc_size, GFP_KERNEL); |
| 1554 | if (!mlxsw_sp->ports) |
| 1555 | return -ENOMEM; |
| 1556 | |
| 1557 | for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++) { |
Ido Schimmel | 558c2d5 | 2016-02-26 17:32:29 +0100 | [diff] [blame] | 1558 | err = mlxsw_sp_port_module_info_get(mlxsw_sp, i, &module, |
| 1559 | &width); |
| 1560 | if (err) |
| 1561 | goto err_port_module_info_get; |
| 1562 | if (!width) |
| 1563 | continue; |
| 1564 | mlxsw_sp->port_to_module[i] = module; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1565 | err = mlxsw_sp_port_create(mlxsw_sp, i); |
| 1566 | if (err) |
| 1567 | goto err_port_create; |
| 1568 | } |
| 1569 | return 0; |
| 1570 | |
| 1571 | err_port_create: |
Ido Schimmel | 558c2d5 | 2016-02-26 17:32:29 +0100 | [diff] [blame] | 1572 | err_port_module_info_get: |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1573 | for (i--; i >= 1; i--) |
| 1574 | mlxsw_sp_port_remove(mlxsw_sp, i); |
| 1575 | kfree(mlxsw_sp->ports); |
| 1576 | return err; |
| 1577 | } |
| 1578 | |
| 1579 | static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg, |
| 1580 | char *pude_pl, void *priv) |
| 1581 | { |
| 1582 | struct mlxsw_sp *mlxsw_sp = priv; |
| 1583 | struct mlxsw_sp_port *mlxsw_sp_port; |
| 1584 | enum mlxsw_reg_pude_oper_status status; |
| 1585 | u8 local_port; |
| 1586 | |
| 1587 | local_port = mlxsw_reg_pude_local_port_get(pude_pl); |
| 1588 | mlxsw_sp_port = mlxsw_sp->ports[local_port]; |
| 1589 | if (!mlxsw_sp_port) { |
| 1590 | dev_warn(mlxsw_sp->bus_info->dev, "Port %d: Link event received for non-existent port\n", |
| 1591 | local_port); |
| 1592 | return; |
| 1593 | } |
| 1594 | |
| 1595 | status = mlxsw_reg_pude_oper_status_get(pude_pl); |
| 1596 | if (status == MLXSW_PORT_OPER_STATUS_UP) { |
| 1597 | netdev_info(mlxsw_sp_port->dev, "link up\n"); |
| 1598 | netif_carrier_on(mlxsw_sp_port->dev); |
| 1599 | } else { |
| 1600 | netdev_info(mlxsw_sp_port->dev, "link down\n"); |
| 1601 | netif_carrier_off(mlxsw_sp_port->dev); |
| 1602 | } |
| 1603 | } |
| 1604 | |
| 1605 | static struct mlxsw_event_listener mlxsw_sp_pude_event = { |
| 1606 | .func = mlxsw_sp_pude_event_func, |
| 1607 | .trap_id = MLXSW_TRAP_ID_PUDE, |
| 1608 | }; |
| 1609 | |
| 1610 | static int mlxsw_sp_event_register(struct mlxsw_sp *mlxsw_sp, |
| 1611 | enum mlxsw_event_trap_id trap_id) |
| 1612 | { |
| 1613 | struct mlxsw_event_listener *el; |
| 1614 | char hpkt_pl[MLXSW_REG_HPKT_LEN]; |
| 1615 | int err; |
| 1616 | |
| 1617 | switch (trap_id) { |
| 1618 | case MLXSW_TRAP_ID_PUDE: |
| 1619 | el = &mlxsw_sp_pude_event; |
| 1620 | break; |
| 1621 | } |
| 1622 | err = mlxsw_core_event_listener_register(mlxsw_sp->core, el, mlxsw_sp); |
| 1623 | if (err) |
| 1624 | return err; |
| 1625 | |
| 1626 | mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD, trap_id); |
| 1627 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl); |
| 1628 | if (err) |
| 1629 | goto err_event_trap_set; |
| 1630 | |
| 1631 | return 0; |
| 1632 | |
| 1633 | err_event_trap_set: |
| 1634 | mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp); |
| 1635 | return err; |
| 1636 | } |
| 1637 | |
| 1638 | static void mlxsw_sp_event_unregister(struct mlxsw_sp *mlxsw_sp, |
| 1639 | enum mlxsw_event_trap_id trap_id) |
| 1640 | { |
| 1641 | struct mlxsw_event_listener *el; |
| 1642 | |
| 1643 | switch (trap_id) { |
| 1644 | case MLXSW_TRAP_ID_PUDE: |
| 1645 | el = &mlxsw_sp_pude_event; |
| 1646 | break; |
| 1647 | } |
| 1648 | mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp); |
| 1649 | } |
| 1650 | |
| 1651 | static void mlxsw_sp_rx_listener_func(struct sk_buff *skb, u8 local_port, |
| 1652 | void *priv) |
| 1653 | { |
| 1654 | struct mlxsw_sp *mlxsw_sp = priv; |
| 1655 | struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port]; |
| 1656 | struct mlxsw_sp_port_pcpu_stats *pcpu_stats; |
| 1657 | |
| 1658 | if (unlikely(!mlxsw_sp_port)) { |
| 1659 | dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: skb received for non-existent port\n", |
| 1660 | local_port); |
| 1661 | return; |
| 1662 | } |
| 1663 | |
| 1664 | skb->dev = mlxsw_sp_port->dev; |
| 1665 | |
| 1666 | pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats); |
| 1667 | u64_stats_update_begin(&pcpu_stats->syncp); |
| 1668 | pcpu_stats->rx_packets++; |
| 1669 | pcpu_stats->rx_bytes += skb->len; |
| 1670 | u64_stats_update_end(&pcpu_stats->syncp); |
| 1671 | |
| 1672 | skb->protocol = eth_type_trans(skb, skb->dev); |
| 1673 | netif_receive_skb(skb); |
| 1674 | } |
| 1675 | |
| 1676 | static const struct mlxsw_rx_listener mlxsw_sp_rx_listener[] = { |
| 1677 | { |
| 1678 | .func = mlxsw_sp_rx_listener_func, |
| 1679 | .local_port = MLXSW_PORT_DONT_CARE, |
| 1680 | .trap_id = MLXSW_TRAP_ID_FDB_MC, |
| 1681 | }, |
| 1682 | /* Traps for specific L2 packet types, not trapped as FDB MC */ |
| 1683 | { |
| 1684 | .func = mlxsw_sp_rx_listener_func, |
| 1685 | .local_port = MLXSW_PORT_DONT_CARE, |
| 1686 | .trap_id = MLXSW_TRAP_ID_STP, |
| 1687 | }, |
| 1688 | { |
| 1689 | .func = mlxsw_sp_rx_listener_func, |
| 1690 | .local_port = MLXSW_PORT_DONT_CARE, |
| 1691 | .trap_id = MLXSW_TRAP_ID_LACP, |
| 1692 | }, |
| 1693 | { |
| 1694 | .func = mlxsw_sp_rx_listener_func, |
| 1695 | .local_port = MLXSW_PORT_DONT_CARE, |
| 1696 | .trap_id = MLXSW_TRAP_ID_EAPOL, |
| 1697 | }, |
| 1698 | { |
| 1699 | .func = mlxsw_sp_rx_listener_func, |
| 1700 | .local_port = MLXSW_PORT_DONT_CARE, |
| 1701 | .trap_id = MLXSW_TRAP_ID_LLDP, |
| 1702 | }, |
| 1703 | { |
| 1704 | .func = mlxsw_sp_rx_listener_func, |
| 1705 | .local_port = MLXSW_PORT_DONT_CARE, |
| 1706 | .trap_id = MLXSW_TRAP_ID_MMRP, |
| 1707 | }, |
| 1708 | { |
| 1709 | .func = mlxsw_sp_rx_listener_func, |
| 1710 | .local_port = MLXSW_PORT_DONT_CARE, |
| 1711 | .trap_id = MLXSW_TRAP_ID_MVRP, |
| 1712 | }, |
| 1713 | { |
| 1714 | .func = mlxsw_sp_rx_listener_func, |
| 1715 | .local_port = MLXSW_PORT_DONT_CARE, |
| 1716 | .trap_id = MLXSW_TRAP_ID_RPVST, |
| 1717 | }, |
| 1718 | { |
| 1719 | .func = mlxsw_sp_rx_listener_func, |
| 1720 | .local_port = MLXSW_PORT_DONT_CARE, |
| 1721 | .trap_id = MLXSW_TRAP_ID_DHCP, |
| 1722 | }, |
| 1723 | { |
| 1724 | .func = mlxsw_sp_rx_listener_func, |
| 1725 | .local_port = MLXSW_PORT_DONT_CARE, |
| 1726 | .trap_id = MLXSW_TRAP_ID_IGMP_QUERY, |
| 1727 | }, |
| 1728 | { |
| 1729 | .func = mlxsw_sp_rx_listener_func, |
| 1730 | .local_port = MLXSW_PORT_DONT_CARE, |
| 1731 | .trap_id = MLXSW_TRAP_ID_IGMP_V1_REPORT, |
| 1732 | }, |
| 1733 | { |
| 1734 | .func = mlxsw_sp_rx_listener_func, |
| 1735 | .local_port = MLXSW_PORT_DONT_CARE, |
| 1736 | .trap_id = MLXSW_TRAP_ID_IGMP_V2_REPORT, |
| 1737 | }, |
| 1738 | { |
| 1739 | .func = mlxsw_sp_rx_listener_func, |
| 1740 | .local_port = MLXSW_PORT_DONT_CARE, |
| 1741 | .trap_id = MLXSW_TRAP_ID_IGMP_V2_LEAVE, |
| 1742 | }, |
| 1743 | { |
| 1744 | .func = mlxsw_sp_rx_listener_func, |
| 1745 | .local_port = MLXSW_PORT_DONT_CARE, |
| 1746 | .trap_id = MLXSW_TRAP_ID_IGMP_V3_REPORT, |
| 1747 | }, |
| 1748 | }; |
| 1749 | |
| 1750 | static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp) |
| 1751 | { |
| 1752 | char htgt_pl[MLXSW_REG_HTGT_LEN]; |
| 1753 | char hpkt_pl[MLXSW_REG_HPKT_LEN]; |
| 1754 | int i; |
| 1755 | int err; |
| 1756 | |
| 1757 | mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_RX); |
| 1758 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl); |
| 1759 | if (err) |
| 1760 | return err; |
| 1761 | |
| 1762 | mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_CTRL); |
| 1763 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl); |
| 1764 | if (err) |
| 1765 | return err; |
| 1766 | |
| 1767 | for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) { |
| 1768 | err = mlxsw_core_rx_listener_register(mlxsw_sp->core, |
| 1769 | &mlxsw_sp_rx_listener[i], |
| 1770 | mlxsw_sp); |
| 1771 | if (err) |
| 1772 | goto err_rx_listener_register; |
| 1773 | |
| 1774 | mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_TRAP_TO_CPU, |
| 1775 | mlxsw_sp_rx_listener[i].trap_id); |
| 1776 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl); |
| 1777 | if (err) |
| 1778 | goto err_rx_trap_set; |
| 1779 | } |
| 1780 | return 0; |
| 1781 | |
| 1782 | err_rx_trap_set: |
| 1783 | mlxsw_core_rx_listener_unregister(mlxsw_sp->core, |
| 1784 | &mlxsw_sp_rx_listener[i], |
| 1785 | mlxsw_sp); |
| 1786 | err_rx_listener_register: |
| 1787 | for (i--; i >= 0; i--) { |
| 1788 | mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD, |
| 1789 | mlxsw_sp_rx_listener[i].trap_id); |
| 1790 | mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl); |
| 1791 | |
| 1792 | mlxsw_core_rx_listener_unregister(mlxsw_sp->core, |
| 1793 | &mlxsw_sp_rx_listener[i], |
| 1794 | mlxsw_sp); |
| 1795 | } |
| 1796 | return err; |
| 1797 | } |
| 1798 | |
| 1799 | static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp) |
| 1800 | { |
| 1801 | char hpkt_pl[MLXSW_REG_HPKT_LEN]; |
| 1802 | int i; |
| 1803 | |
| 1804 | for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) { |
| 1805 | mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD, |
| 1806 | mlxsw_sp_rx_listener[i].trap_id); |
| 1807 | mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl); |
| 1808 | |
| 1809 | mlxsw_core_rx_listener_unregister(mlxsw_sp->core, |
| 1810 | &mlxsw_sp_rx_listener[i], |
| 1811 | mlxsw_sp); |
| 1812 | } |
| 1813 | } |
| 1814 | |
| 1815 | static int __mlxsw_sp_flood_init(struct mlxsw_core *mlxsw_core, |
| 1816 | enum mlxsw_reg_sfgc_type type, |
| 1817 | enum mlxsw_reg_sfgc_bridge_type bridge_type) |
| 1818 | { |
| 1819 | enum mlxsw_flood_table_type table_type; |
| 1820 | enum mlxsw_sp_flood_table flood_table; |
| 1821 | char sfgc_pl[MLXSW_REG_SFGC_LEN]; |
| 1822 | |
Ido Schimmel | 19ae612 | 2015-12-15 16:03:39 +0100 | [diff] [blame] | 1823 | if (bridge_type == MLXSW_REG_SFGC_BRIDGE_TYPE_VFID) |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1824 | table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID; |
Ido Schimmel | 19ae612 | 2015-12-15 16:03:39 +0100 | [diff] [blame] | 1825 | else |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1826 | table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST; |
Ido Schimmel | 19ae612 | 2015-12-15 16:03:39 +0100 | [diff] [blame] | 1827 | |
| 1828 | if (type == MLXSW_REG_SFGC_TYPE_UNKNOWN_UNICAST) |
| 1829 | flood_table = MLXSW_SP_FLOOD_TABLE_UC; |
| 1830 | else |
| 1831 | flood_table = MLXSW_SP_FLOOD_TABLE_BM; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1832 | |
| 1833 | mlxsw_reg_sfgc_pack(sfgc_pl, type, bridge_type, table_type, |
| 1834 | flood_table); |
| 1835 | return mlxsw_reg_write(mlxsw_core, MLXSW_REG(sfgc), sfgc_pl); |
| 1836 | } |
| 1837 | |
| 1838 | static int mlxsw_sp_flood_init(struct mlxsw_sp *mlxsw_sp) |
| 1839 | { |
| 1840 | int type, err; |
| 1841 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1842 | for (type = 0; type < MLXSW_REG_SFGC_TYPE_MAX; type++) { |
| 1843 | if (type == MLXSW_REG_SFGC_TYPE_RESERVED) |
| 1844 | continue; |
| 1845 | |
| 1846 | err = __mlxsw_sp_flood_init(mlxsw_sp->core, type, |
| 1847 | MLXSW_REG_SFGC_BRIDGE_TYPE_VFID); |
| 1848 | if (err) |
| 1849 | return err; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1850 | |
| 1851 | err = __mlxsw_sp_flood_init(mlxsw_sp->core, type, |
| 1852 | MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID); |
| 1853 | if (err) |
| 1854 | return err; |
| 1855 | } |
| 1856 | |
| 1857 | return 0; |
| 1858 | } |
| 1859 | |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 1860 | static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp) |
| 1861 | { |
| 1862 | char slcr_pl[MLXSW_REG_SLCR_LEN]; |
| 1863 | |
| 1864 | mlxsw_reg_slcr_pack(slcr_pl, MLXSW_REG_SLCR_LAG_HASH_SMAC | |
| 1865 | MLXSW_REG_SLCR_LAG_HASH_DMAC | |
| 1866 | MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE | |
| 1867 | MLXSW_REG_SLCR_LAG_HASH_VLANID | |
| 1868 | MLXSW_REG_SLCR_LAG_HASH_SIP | |
| 1869 | MLXSW_REG_SLCR_LAG_HASH_DIP | |
| 1870 | MLXSW_REG_SLCR_LAG_HASH_SPORT | |
| 1871 | MLXSW_REG_SLCR_LAG_HASH_DPORT | |
| 1872 | MLXSW_REG_SLCR_LAG_HASH_IPPROTO); |
| 1873 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcr), slcr_pl); |
| 1874 | } |
| 1875 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1876 | static int mlxsw_sp_init(void *priv, struct mlxsw_core *mlxsw_core, |
| 1877 | const struct mlxsw_bus_info *mlxsw_bus_info) |
| 1878 | { |
| 1879 | struct mlxsw_sp *mlxsw_sp = priv; |
| 1880 | int err; |
| 1881 | |
| 1882 | mlxsw_sp->core = mlxsw_core; |
| 1883 | mlxsw_sp->bus_info = mlxsw_bus_info; |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 1884 | INIT_LIST_HEAD(&mlxsw_sp->port_vfids.list); |
Ido Schimmel | 26f0e7f | 2015-12-15 16:03:44 +0100 | [diff] [blame] | 1885 | INIT_LIST_HEAD(&mlxsw_sp->br_vfids.list); |
Elad Raz | 3a49b4f | 2016-01-10 21:06:28 +0100 | [diff] [blame] | 1886 | INIT_LIST_HEAD(&mlxsw_sp->br_mids.list); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1887 | |
| 1888 | err = mlxsw_sp_base_mac_get(mlxsw_sp); |
| 1889 | if (err) { |
| 1890 | dev_err(mlxsw_sp->bus_info->dev, "Failed to get base mac\n"); |
| 1891 | return err; |
| 1892 | } |
| 1893 | |
| 1894 | err = mlxsw_sp_ports_create(mlxsw_sp); |
| 1895 | if (err) { |
| 1896 | dev_err(mlxsw_sp->bus_info->dev, "Failed to create ports\n"); |
Ido Schimmel | 7f71eb4 | 2015-12-15 16:03:37 +0100 | [diff] [blame] | 1897 | return err; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1898 | } |
| 1899 | |
| 1900 | err = mlxsw_sp_event_register(mlxsw_sp, MLXSW_TRAP_ID_PUDE); |
| 1901 | if (err) { |
| 1902 | dev_err(mlxsw_sp->bus_info->dev, "Failed to register for PUDE events\n"); |
| 1903 | goto err_event_register; |
| 1904 | } |
| 1905 | |
| 1906 | err = mlxsw_sp_traps_init(mlxsw_sp); |
| 1907 | if (err) { |
| 1908 | dev_err(mlxsw_sp->bus_info->dev, "Failed to set traps for RX\n"); |
| 1909 | goto err_rx_listener_register; |
| 1910 | } |
| 1911 | |
| 1912 | err = mlxsw_sp_flood_init(mlxsw_sp); |
| 1913 | if (err) { |
| 1914 | dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize flood tables\n"); |
| 1915 | goto err_flood_init; |
| 1916 | } |
| 1917 | |
| 1918 | err = mlxsw_sp_buffers_init(mlxsw_sp); |
| 1919 | if (err) { |
| 1920 | dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize buffers\n"); |
| 1921 | goto err_buffers_init; |
| 1922 | } |
| 1923 | |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 1924 | err = mlxsw_sp_lag_init(mlxsw_sp); |
| 1925 | if (err) { |
| 1926 | dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize LAG\n"); |
| 1927 | goto err_lag_init; |
| 1928 | } |
| 1929 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1930 | err = mlxsw_sp_switchdev_init(mlxsw_sp); |
| 1931 | if (err) { |
| 1932 | dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize switchdev\n"); |
| 1933 | goto err_switchdev_init; |
| 1934 | } |
| 1935 | |
| 1936 | return 0; |
| 1937 | |
| 1938 | err_switchdev_init: |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 1939 | err_lag_init: |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1940 | err_buffers_init: |
| 1941 | err_flood_init: |
| 1942 | mlxsw_sp_traps_fini(mlxsw_sp); |
| 1943 | err_rx_listener_register: |
| 1944 | mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE); |
| 1945 | err_event_register: |
| 1946 | mlxsw_sp_ports_remove(mlxsw_sp); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1947 | return err; |
| 1948 | } |
| 1949 | |
| 1950 | static void mlxsw_sp_fini(void *priv) |
| 1951 | { |
| 1952 | struct mlxsw_sp *mlxsw_sp = priv; |
| 1953 | |
| 1954 | mlxsw_sp_switchdev_fini(mlxsw_sp); |
| 1955 | mlxsw_sp_traps_fini(mlxsw_sp); |
| 1956 | mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE); |
| 1957 | mlxsw_sp_ports_remove(mlxsw_sp); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1958 | } |
| 1959 | |
| 1960 | static struct mlxsw_config_profile mlxsw_sp_config_profile = { |
| 1961 | .used_max_vepa_channels = 1, |
| 1962 | .max_vepa_channels = 0, |
| 1963 | .used_max_lag = 1, |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 1964 | .max_lag = MLXSW_SP_LAG_MAX, |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1965 | .used_max_port_per_lag = 1, |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 1966 | .max_port_per_lag = MLXSW_SP_PORT_PER_LAG_MAX, |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1967 | .used_max_mid = 1, |
Elad Raz | 53ae628 | 2016-01-10 21:06:26 +0100 | [diff] [blame] | 1968 | .max_mid = MLXSW_SP_MID_MAX, |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1969 | .used_max_pgt = 1, |
| 1970 | .max_pgt = 0, |
| 1971 | .used_max_system_port = 1, |
| 1972 | .max_system_port = 64, |
| 1973 | .used_max_vlan_groups = 1, |
| 1974 | .max_vlan_groups = 127, |
| 1975 | .used_max_regions = 1, |
| 1976 | .max_regions = 400, |
| 1977 | .used_flood_tables = 1, |
| 1978 | .used_flood_mode = 1, |
| 1979 | .flood_mode = 3, |
| 1980 | .max_fid_offset_flood_tables = 2, |
| 1981 | .fid_offset_flood_table_size = VLAN_N_VID - 1, |
Ido Schimmel | 19ae612 | 2015-12-15 16:03:39 +0100 | [diff] [blame] | 1982 | .max_fid_flood_tables = 2, |
| 1983 | .fid_flood_table_size = MLXSW_SP_VFID_MAX, |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 1984 | .used_max_ib_mc = 1, |
| 1985 | .max_ib_mc = 0, |
| 1986 | .used_max_pkey = 1, |
| 1987 | .max_pkey = 0, |
| 1988 | .swid_config = { |
| 1989 | { |
| 1990 | .used_type = 1, |
| 1991 | .type = MLXSW_PORT_SWID_TYPE_ETH, |
| 1992 | } |
| 1993 | }, |
| 1994 | }; |
| 1995 | |
| 1996 | static struct mlxsw_driver mlxsw_sp_driver = { |
| 1997 | .kind = MLXSW_DEVICE_KIND_SPECTRUM, |
| 1998 | .owner = THIS_MODULE, |
| 1999 | .priv_size = sizeof(struct mlxsw_sp), |
| 2000 | .init = mlxsw_sp_init, |
| 2001 | .fini = mlxsw_sp_fini, |
| 2002 | .txhdr_construct = mlxsw_sp_txhdr_construct, |
| 2003 | .txhdr_len = MLXSW_TXHDR_LEN, |
| 2004 | .profile = &mlxsw_sp_config_profile, |
| 2005 | }; |
| 2006 | |
Ido Schimmel | 039c49a | 2016-01-27 15:20:18 +0100 | [diff] [blame] | 2007 | static int |
| 2008 | mlxsw_sp_port_fdb_flush_by_port(const struct mlxsw_sp_port *mlxsw_sp_port) |
| 2009 | { |
| 2010 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 2011 | char sfdf_pl[MLXSW_REG_SFDF_LEN]; |
| 2012 | |
| 2013 | mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_PORT); |
| 2014 | mlxsw_reg_sfdf_system_port_set(sfdf_pl, mlxsw_sp_port->local_port); |
| 2015 | |
| 2016 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl); |
| 2017 | } |
| 2018 | |
| 2019 | static int |
| 2020 | mlxsw_sp_port_fdb_flush_by_port_fid(const struct mlxsw_sp_port *mlxsw_sp_port, |
| 2021 | u16 fid) |
| 2022 | { |
| 2023 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 2024 | char sfdf_pl[MLXSW_REG_SFDF_LEN]; |
| 2025 | |
| 2026 | mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_PORT_AND_FID); |
| 2027 | mlxsw_reg_sfdf_fid_set(sfdf_pl, fid); |
| 2028 | mlxsw_reg_sfdf_port_fid_system_port_set(sfdf_pl, |
| 2029 | mlxsw_sp_port->local_port); |
| 2030 | |
| 2031 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl); |
| 2032 | } |
| 2033 | |
| 2034 | static int |
| 2035 | mlxsw_sp_port_fdb_flush_by_lag_id(const struct mlxsw_sp_port *mlxsw_sp_port) |
| 2036 | { |
| 2037 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 2038 | char sfdf_pl[MLXSW_REG_SFDF_LEN]; |
| 2039 | |
| 2040 | mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_LAG); |
| 2041 | mlxsw_reg_sfdf_lag_id_set(sfdf_pl, mlxsw_sp_port->lag_id); |
| 2042 | |
| 2043 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl); |
| 2044 | } |
| 2045 | |
| 2046 | static int |
| 2047 | mlxsw_sp_port_fdb_flush_by_lag_id_fid(const struct mlxsw_sp_port *mlxsw_sp_port, |
| 2048 | u16 fid) |
| 2049 | { |
| 2050 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 2051 | char sfdf_pl[MLXSW_REG_SFDF_LEN]; |
| 2052 | |
| 2053 | mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_LAG_AND_FID); |
| 2054 | mlxsw_reg_sfdf_fid_set(sfdf_pl, fid); |
| 2055 | mlxsw_reg_sfdf_lag_fid_lag_id_set(sfdf_pl, mlxsw_sp_port->lag_id); |
| 2056 | |
| 2057 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl); |
| 2058 | } |
| 2059 | |
| 2060 | static int |
| 2061 | __mlxsw_sp_port_fdb_flush(const struct mlxsw_sp_port *mlxsw_sp_port) |
| 2062 | { |
| 2063 | int err, last_err = 0; |
| 2064 | u16 vid; |
| 2065 | |
| 2066 | for (vid = 1; vid < VLAN_N_VID - 1; vid++) { |
| 2067 | err = mlxsw_sp_port_fdb_flush_by_port_fid(mlxsw_sp_port, vid); |
| 2068 | if (err) |
| 2069 | last_err = err; |
| 2070 | } |
| 2071 | |
| 2072 | return last_err; |
| 2073 | } |
| 2074 | |
| 2075 | static int |
| 2076 | __mlxsw_sp_port_fdb_flush_lagged(const struct mlxsw_sp_port *mlxsw_sp_port) |
| 2077 | { |
| 2078 | int err, last_err = 0; |
| 2079 | u16 vid; |
| 2080 | |
| 2081 | for (vid = 1; vid < VLAN_N_VID - 1; vid++) { |
| 2082 | err = mlxsw_sp_port_fdb_flush_by_lag_id_fid(mlxsw_sp_port, vid); |
| 2083 | if (err) |
| 2084 | last_err = err; |
| 2085 | } |
| 2086 | |
| 2087 | return last_err; |
| 2088 | } |
| 2089 | |
| 2090 | static int mlxsw_sp_port_fdb_flush(struct mlxsw_sp_port *mlxsw_sp_port) |
| 2091 | { |
| 2092 | if (!list_empty(&mlxsw_sp_port->vports_list)) |
| 2093 | if (mlxsw_sp_port->lagged) |
| 2094 | return __mlxsw_sp_port_fdb_flush_lagged(mlxsw_sp_port); |
| 2095 | else |
| 2096 | return __mlxsw_sp_port_fdb_flush(mlxsw_sp_port); |
| 2097 | else |
| 2098 | if (mlxsw_sp_port->lagged) |
| 2099 | return mlxsw_sp_port_fdb_flush_by_lag_id(mlxsw_sp_port); |
| 2100 | else |
| 2101 | return mlxsw_sp_port_fdb_flush_by_port(mlxsw_sp_port); |
| 2102 | } |
| 2103 | |
| 2104 | static int mlxsw_sp_vport_fdb_flush(struct mlxsw_sp_port *mlxsw_sp_vport) |
| 2105 | { |
| 2106 | u16 vfid = mlxsw_sp_vport_vfid_get(mlxsw_sp_vport); |
| 2107 | u16 fid = mlxsw_sp_vfid_to_fid(vfid); |
| 2108 | |
| 2109 | if (mlxsw_sp_vport->lagged) |
| 2110 | return mlxsw_sp_port_fdb_flush_by_lag_id_fid(mlxsw_sp_vport, |
| 2111 | fid); |
| 2112 | else |
| 2113 | return mlxsw_sp_port_fdb_flush_by_port_fid(mlxsw_sp_vport, fid); |
| 2114 | } |
| 2115 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2116 | static bool mlxsw_sp_port_dev_check(const struct net_device *dev) |
| 2117 | { |
| 2118 | return dev->netdev_ops == &mlxsw_sp_port_netdev_ops; |
| 2119 | } |
| 2120 | |
| 2121 | static int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port) |
| 2122 | { |
| 2123 | struct net_device *dev = mlxsw_sp_port->dev; |
| 2124 | int err; |
| 2125 | |
| 2126 | /* When port is not bridged untagged packets are tagged with |
| 2127 | * PVID=VID=1, thereby creating an implicit VLAN interface in |
| 2128 | * the device. Remove it and let bridge code take care of its |
| 2129 | * own VLANs. |
| 2130 | */ |
| 2131 | err = mlxsw_sp_port_kill_vid(dev, 0, 1); |
Ido Schimmel | 6c72a3d | 2016-01-04 10:42:26 +0100 | [diff] [blame] | 2132 | if (err) |
| 2133 | return err; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2134 | |
Ido Schimmel | 6c72a3d | 2016-01-04 10:42:26 +0100 | [diff] [blame] | 2135 | mlxsw_sp_port->learning = 1; |
| 2136 | mlxsw_sp_port->learning_sync = 1; |
| 2137 | mlxsw_sp_port->uc_flood = 1; |
| 2138 | mlxsw_sp_port->bridged = 1; |
| 2139 | |
| 2140 | return 0; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2141 | } |
| 2142 | |
Ido Schimmel | 039c49a | 2016-01-27 15:20:18 +0100 | [diff] [blame] | 2143 | static int mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port, |
| 2144 | bool flush_fdb) |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2145 | { |
| 2146 | struct net_device *dev = mlxsw_sp_port->dev; |
Ido Schimmel | 5a8f452 | 2016-01-04 10:42:25 +0100 | [diff] [blame] | 2147 | |
Ido Schimmel | 039c49a | 2016-01-27 15:20:18 +0100 | [diff] [blame] | 2148 | if (flush_fdb && mlxsw_sp_port_fdb_flush(mlxsw_sp_port)) |
| 2149 | netdev_err(mlxsw_sp_port->dev, "Failed to flush FDB\n"); |
| 2150 | |
Ido Schimmel | 28a01d2 | 2016-02-18 11:30:02 +0100 | [diff] [blame] | 2151 | mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1); |
| 2152 | |
Ido Schimmel | 6c72a3d | 2016-01-04 10:42:26 +0100 | [diff] [blame] | 2153 | mlxsw_sp_port->learning = 0; |
| 2154 | mlxsw_sp_port->learning_sync = 0; |
| 2155 | mlxsw_sp_port->uc_flood = 0; |
Ido Schimmel | 5a8f452 | 2016-01-04 10:42:25 +0100 | [diff] [blame] | 2156 | mlxsw_sp_port->bridged = 0; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2157 | |
| 2158 | /* Add implicit VLAN interface in the device, so that untagged |
| 2159 | * packets will be classified to the default vFID. |
| 2160 | */ |
Ido Schimmel | 5a8f452 | 2016-01-04 10:42:25 +0100 | [diff] [blame] | 2161 | return mlxsw_sp_port_add_vid(dev, 0, 1); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2162 | } |
| 2163 | |
| 2164 | static bool mlxsw_sp_master_bridge_check(struct mlxsw_sp *mlxsw_sp, |
| 2165 | struct net_device *br_dev) |
| 2166 | { |
| 2167 | return !mlxsw_sp->master_bridge.dev || |
| 2168 | mlxsw_sp->master_bridge.dev == br_dev; |
| 2169 | } |
| 2170 | |
| 2171 | static void mlxsw_sp_master_bridge_inc(struct mlxsw_sp *mlxsw_sp, |
| 2172 | struct net_device *br_dev) |
| 2173 | { |
| 2174 | mlxsw_sp->master_bridge.dev = br_dev; |
| 2175 | mlxsw_sp->master_bridge.ref_count++; |
| 2176 | } |
| 2177 | |
| 2178 | static void mlxsw_sp_master_bridge_dec(struct mlxsw_sp *mlxsw_sp, |
| 2179 | struct net_device *br_dev) |
| 2180 | { |
| 2181 | if (--mlxsw_sp->master_bridge.ref_count == 0) |
| 2182 | mlxsw_sp->master_bridge.dev = NULL; |
| 2183 | } |
| 2184 | |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 2185 | static int mlxsw_sp_lag_create(struct mlxsw_sp *mlxsw_sp, u16 lag_id) |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2186 | { |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 2187 | char sldr_pl[MLXSW_REG_SLDR_LEN]; |
| 2188 | |
| 2189 | mlxsw_reg_sldr_lag_create_pack(sldr_pl, lag_id); |
| 2190 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); |
| 2191 | } |
| 2192 | |
| 2193 | static int mlxsw_sp_lag_destroy(struct mlxsw_sp *mlxsw_sp, u16 lag_id) |
| 2194 | { |
| 2195 | char sldr_pl[MLXSW_REG_SLDR_LEN]; |
| 2196 | |
| 2197 | mlxsw_reg_sldr_lag_destroy_pack(sldr_pl, lag_id); |
| 2198 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); |
| 2199 | } |
| 2200 | |
| 2201 | static int mlxsw_sp_lag_col_port_add(struct mlxsw_sp_port *mlxsw_sp_port, |
| 2202 | u16 lag_id, u8 port_index) |
| 2203 | { |
| 2204 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 2205 | char slcor_pl[MLXSW_REG_SLCOR_LEN]; |
| 2206 | |
| 2207 | mlxsw_reg_slcor_port_add_pack(slcor_pl, mlxsw_sp_port->local_port, |
| 2208 | lag_id, port_index); |
| 2209 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); |
| 2210 | } |
| 2211 | |
| 2212 | static int mlxsw_sp_lag_col_port_remove(struct mlxsw_sp_port *mlxsw_sp_port, |
| 2213 | u16 lag_id) |
| 2214 | { |
| 2215 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 2216 | char slcor_pl[MLXSW_REG_SLCOR_LEN]; |
| 2217 | |
| 2218 | mlxsw_reg_slcor_port_remove_pack(slcor_pl, mlxsw_sp_port->local_port, |
| 2219 | lag_id); |
| 2220 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); |
| 2221 | } |
| 2222 | |
| 2223 | static int mlxsw_sp_lag_col_port_enable(struct mlxsw_sp_port *mlxsw_sp_port, |
| 2224 | u16 lag_id) |
| 2225 | { |
| 2226 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 2227 | char slcor_pl[MLXSW_REG_SLCOR_LEN]; |
| 2228 | |
| 2229 | mlxsw_reg_slcor_col_enable_pack(slcor_pl, mlxsw_sp_port->local_port, |
| 2230 | lag_id); |
| 2231 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); |
| 2232 | } |
| 2233 | |
| 2234 | static int mlxsw_sp_lag_col_port_disable(struct mlxsw_sp_port *mlxsw_sp_port, |
| 2235 | u16 lag_id) |
| 2236 | { |
| 2237 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 2238 | char slcor_pl[MLXSW_REG_SLCOR_LEN]; |
| 2239 | |
| 2240 | mlxsw_reg_slcor_col_disable_pack(slcor_pl, mlxsw_sp_port->local_port, |
| 2241 | lag_id); |
| 2242 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); |
| 2243 | } |
| 2244 | |
| 2245 | static int mlxsw_sp_lag_index_get(struct mlxsw_sp *mlxsw_sp, |
| 2246 | struct net_device *lag_dev, |
| 2247 | u16 *p_lag_id) |
| 2248 | { |
| 2249 | struct mlxsw_sp_upper *lag; |
| 2250 | int free_lag_id = -1; |
| 2251 | int i; |
| 2252 | |
| 2253 | for (i = 0; i < MLXSW_SP_LAG_MAX; i++) { |
| 2254 | lag = mlxsw_sp_lag_get(mlxsw_sp, i); |
| 2255 | if (lag->ref_count) { |
| 2256 | if (lag->dev == lag_dev) { |
| 2257 | *p_lag_id = i; |
| 2258 | return 0; |
| 2259 | } |
| 2260 | } else if (free_lag_id < 0) { |
| 2261 | free_lag_id = i; |
| 2262 | } |
| 2263 | } |
| 2264 | if (free_lag_id < 0) |
| 2265 | return -EBUSY; |
| 2266 | *p_lag_id = free_lag_id; |
| 2267 | return 0; |
| 2268 | } |
| 2269 | |
| 2270 | static bool |
| 2271 | mlxsw_sp_master_lag_check(struct mlxsw_sp *mlxsw_sp, |
| 2272 | struct net_device *lag_dev, |
| 2273 | struct netdev_lag_upper_info *lag_upper_info) |
| 2274 | { |
| 2275 | u16 lag_id; |
| 2276 | |
| 2277 | if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0) |
| 2278 | return false; |
| 2279 | if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) |
| 2280 | return false; |
| 2281 | return true; |
| 2282 | } |
| 2283 | |
| 2284 | static int mlxsw_sp_port_lag_index_get(struct mlxsw_sp *mlxsw_sp, |
| 2285 | u16 lag_id, u8 *p_port_index) |
| 2286 | { |
| 2287 | int i; |
| 2288 | |
| 2289 | for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) { |
| 2290 | if (!mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i)) { |
| 2291 | *p_port_index = i; |
| 2292 | return 0; |
| 2293 | } |
| 2294 | } |
| 2295 | return -EBUSY; |
| 2296 | } |
| 2297 | |
| 2298 | static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port, |
| 2299 | struct net_device *lag_dev) |
| 2300 | { |
| 2301 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 2302 | struct mlxsw_sp_upper *lag; |
| 2303 | u16 lag_id; |
| 2304 | u8 port_index; |
| 2305 | int err; |
| 2306 | |
| 2307 | err = mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id); |
| 2308 | if (err) |
| 2309 | return err; |
| 2310 | lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id); |
| 2311 | if (!lag->ref_count) { |
| 2312 | err = mlxsw_sp_lag_create(mlxsw_sp, lag_id); |
| 2313 | if (err) |
| 2314 | return err; |
| 2315 | lag->dev = lag_dev; |
| 2316 | } |
| 2317 | |
| 2318 | err = mlxsw_sp_port_lag_index_get(mlxsw_sp, lag_id, &port_index); |
| 2319 | if (err) |
| 2320 | return err; |
| 2321 | err = mlxsw_sp_lag_col_port_add(mlxsw_sp_port, lag_id, port_index); |
| 2322 | if (err) |
| 2323 | goto err_col_port_add; |
| 2324 | err = mlxsw_sp_lag_col_port_enable(mlxsw_sp_port, lag_id); |
| 2325 | if (err) |
| 2326 | goto err_col_port_enable; |
| 2327 | |
| 2328 | mlxsw_core_lag_mapping_set(mlxsw_sp->core, lag_id, port_index, |
| 2329 | mlxsw_sp_port->local_port); |
| 2330 | mlxsw_sp_port->lag_id = lag_id; |
| 2331 | mlxsw_sp_port->lagged = 1; |
| 2332 | lag->ref_count++; |
| 2333 | return 0; |
| 2334 | |
| 2335 | err_col_port_add: |
| 2336 | if (!lag->ref_count) |
| 2337 | mlxsw_sp_lag_destroy(mlxsw_sp, lag_id); |
| 2338 | err_col_port_enable: |
| 2339 | mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id); |
| 2340 | return err; |
| 2341 | } |
| 2342 | |
Ido Schimmel | 4dc236c | 2016-01-27 15:20:16 +0100 | [diff] [blame] | 2343 | static int mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_vport, |
Ido Schimmel | 039c49a | 2016-01-27 15:20:18 +0100 | [diff] [blame] | 2344 | struct net_device *br_dev, |
| 2345 | bool flush_fdb); |
Ido Schimmel | 4dc236c | 2016-01-27 15:20:16 +0100 | [diff] [blame] | 2346 | |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 2347 | static int mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port, |
| 2348 | struct net_device *lag_dev) |
| 2349 | { |
| 2350 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
Ido Schimmel | 4dc236c | 2016-01-27 15:20:16 +0100 | [diff] [blame] | 2351 | struct mlxsw_sp_port *mlxsw_sp_vport; |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 2352 | struct mlxsw_sp_upper *lag; |
| 2353 | u16 lag_id = mlxsw_sp_port->lag_id; |
| 2354 | int err; |
| 2355 | |
| 2356 | if (!mlxsw_sp_port->lagged) |
| 2357 | return 0; |
| 2358 | lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id); |
| 2359 | WARN_ON(lag->ref_count == 0); |
| 2360 | |
| 2361 | err = mlxsw_sp_lag_col_port_disable(mlxsw_sp_port, lag_id); |
| 2362 | if (err) |
| 2363 | return err; |
Dan Carpenter | 82a0642 | 2015-12-09 13:33:51 +0300 | [diff] [blame] | 2364 | err = mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id); |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 2365 | if (err) |
| 2366 | return err; |
| 2367 | |
Ido Schimmel | 4dc236c | 2016-01-27 15:20:16 +0100 | [diff] [blame] | 2368 | /* In case we leave a LAG device that has bridges built on top, |
| 2369 | * then their teardown sequence is never issued and we need to |
| 2370 | * invoke the necessary cleanup routines ourselves. |
| 2371 | */ |
| 2372 | list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list, |
| 2373 | vport.list) { |
| 2374 | struct net_device *br_dev; |
| 2375 | |
| 2376 | if (!mlxsw_sp_vport->bridged) |
| 2377 | continue; |
| 2378 | |
| 2379 | br_dev = mlxsw_sp_vport_br_get(mlxsw_sp_vport); |
Ido Schimmel | 039c49a | 2016-01-27 15:20:18 +0100 | [diff] [blame] | 2380 | mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport, br_dev, false); |
Ido Schimmel | 4dc236c | 2016-01-27 15:20:16 +0100 | [diff] [blame] | 2381 | } |
| 2382 | |
| 2383 | if (mlxsw_sp_port->bridged) { |
| 2384 | mlxsw_sp_port_active_vlans_del(mlxsw_sp_port); |
Ido Schimmel | 039c49a | 2016-01-27 15:20:18 +0100 | [diff] [blame] | 2385 | mlxsw_sp_port_bridge_leave(mlxsw_sp_port, false); |
Ido Schimmel | 4dc236c | 2016-01-27 15:20:16 +0100 | [diff] [blame] | 2386 | |
| 2387 | if (lag->ref_count == 1) |
| 2388 | mlxsw_sp_master_bridge_dec(mlxsw_sp, NULL); |
| 2389 | } |
| 2390 | |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 2391 | if (lag->ref_count == 1) { |
Ido Schimmel | 039c49a | 2016-01-27 15:20:18 +0100 | [diff] [blame] | 2392 | if (mlxsw_sp_port_fdb_flush_by_lag_id(mlxsw_sp_port)) |
| 2393 | netdev_err(mlxsw_sp_port->dev, "Failed to flush FDB\n"); |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 2394 | err = mlxsw_sp_lag_destroy(mlxsw_sp, lag_id); |
| 2395 | if (err) |
| 2396 | return err; |
| 2397 | } |
| 2398 | |
| 2399 | mlxsw_core_lag_mapping_clear(mlxsw_sp->core, lag_id, |
| 2400 | mlxsw_sp_port->local_port); |
| 2401 | mlxsw_sp_port->lagged = 0; |
| 2402 | lag->ref_count--; |
| 2403 | return 0; |
| 2404 | } |
| 2405 | |
Jiri Pirko | 7458120 | 2015-12-03 12:12:30 +0100 | [diff] [blame] | 2406 | static int mlxsw_sp_lag_dist_port_add(struct mlxsw_sp_port *mlxsw_sp_port, |
| 2407 | u16 lag_id) |
| 2408 | { |
| 2409 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 2410 | char sldr_pl[MLXSW_REG_SLDR_LEN]; |
| 2411 | |
| 2412 | mlxsw_reg_sldr_lag_add_port_pack(sldr_pl, lag_id, |
| 2413 | mlxsw_sp_port->local_port); |
| 2414 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); |
| 2415 | } |
| 2416 | |
| 2417 | static int mlxsw_sp_lag_dist_port_remove(struct mlxsw_sp_port *mlxsw_sp_port, |
| 2418 | u16 lag_id) |
| 2419 | { |
| 2420 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 2421 | char sldr_pl[MLXSW_REG_SLDR_LEN]; |
| 2422 | |
| 2423 | mlxsw_reg_sldr_lag_remove_port_pack(sldr_pl, lag_id, |
| 2424 | mlxsw_sp_port->local_port); |
| 2425 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); |
| 2426 | } |
| 2427 | |
| 2428 | static int mlxsw_sp_port_lag_tx_en_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| 2429 | bool lag_tx_enabled) |
| 2430 | { |
| 2431 | if (lag_tx_enabled) |
| 2432 | return mlxsw_sp_lag_dist_port_add(mlxsw_sp_port, |
| 2433 | mlxsw_sp_port->lag_id); |
| 2434 | else |
| 2435 | return mlxsw_sp_lag_dist_port_remove(mlxsw_sp_port, |
| 2436 | mlxsw_sp_port->lag_id); |
| 2437 | } |
| 2438 | |
| 2439 | static int mlxsw_sp_port_lag_changed(struct mlxsw_sp_port *mlxsw_sp_port, |
| 2440 | struct netdev_lag_lower_state_info *info) |
| 2441 | { |
| 2442 | return mlxsw_sp_port_lag_tx_en_set(mlxsw_sp_port, info->tx_enabled); |
| 2443 | } |
| 2444 | |
Ido Schimmel | 9589a7b5 | 2015-12-15 16:03:43 +0100 | [diff] [blame] | 2445 | static int mlxsw_sp_port_vlan_link(struct mlxsw_sp_port *mlxsw_sp_port, |
| 2446 | struct net_device *vlan_dev) |
| 2447 | { |
| 2448 | struct mlxsw_sp_port *mlxsw_sp_vport; |
| 2449 | u16 vid = vlan_dev_vlan_id(vlan_dev); |
| 2450 | |
| 2451 | mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid); |
| 2452 | if (!mlxsw_sp_vport) { |
| 2453 | WARN_ON(!mlxsw_sp_vport); |
| 2454 | return -EINVAL; |
| 2455 | } |
| 2456 | |
| 2457 | mlxsw_sp_vport->dev = vlan_dev; |
| 2458 | |
| 2459 | return 0; |
| 2460 | } |
| 2461 | |
| 2462 | static int mlxsw_sp_port_vlan_unlink(struct mlxsw_sp_port *mlxsw_sp_port, |
| 2463 | struct net_device *vlan_dev) |
| 2464 | { |
| 2465 | struct mlxsw_sp_port *mlxsw_sp_vport; |
| 2466 | u16 vid = vlan_dev_vlan_id(vlan_dev); |
| 2467 | |
| 2468 | mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid); |
| 2469 | if (!mlxsw_sp_vport) { |
| 2470 | WARN_ON(!mlxsw_sp_vport); |
| 2471 | return -EINVAL; |
| 2472 | } |
| 2473 | |
Ido Schimmel | 26f0e7f | 2015-12-15 16:03:44 +0100 | [diff] [blame] | 2474 | /* When removing a VLAN device while still bridged we should first |
| 2475 | * remove it from the bridge, as we receive the bridge's notification |
| 2476 | * when the vPort is already gone. |
| 2477 | */ |
| 2478 | if (mlxsw_sp_vport->bridged) { |
| 2479 | struct net_device *br_dev; |
| 2480 | |
| 2481 | br_dev = mlxsw_sp_vport_br_get(mlxsw_sp_vport); |
Ido Schimmel | 039c49a | 2016-01-27 15:20:18 +0100 | [diff] [blame] | 2482 | mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport, br_dev, true); |
Ido Schimmel | 26f0e7f | 2015-12-15 16:03:44 +0100 | [diff] [blame] | 2483 | } |
| 2484 | |
Ido Schimmel | 9589a7b5 | 2015-12-15 16:03:43 +0100 | [diff] [blame] | 2485 | mlxsw_sp_vport->dev = mlxsw_sp_port->dev; |
| 2486 | |
| 2487 | return 0; |
| 2488 | } |
| 2489 | |
Jiri Pirko | 7458120 | 2015-12-03 12:12:30 +0100 | [diff] [blame] | 2490 | static int mlxsw_sp_netdevice_port_upper_event(struct net_device *dev, |
| 2491 | unsigned long event, void *ptr) |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 2492 | { |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2493 | struct netdev_notifier_changeupper_info *info; |
| 2494 | struct mlxsw_sp_port *mlxsw_sp_port; |
| 2495 | struct net_device *upper_dev; |
| 2496 | struct mlxsw_sp *mlxsw_sp; |
| 2497 | int err; |
| 2498 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2499 | mlxsw_sp_port = netdev_priv(dev); |
| 2500 | mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| 2501 | info = ptr; |
| 2502 | |
| 2503 | switch (event) { |
| 2504 | case NETDEV_PRECHANGEUPPER: |
| 2505 | upper_dev = info->upper_dev; |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 2506 | if (!info->master || !info->linking) |
| 2507 | break; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2508 | /* HW limitation forbids to put ports to multiple bridges. */ |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 2509 | if (netif_is_bridge_master(upper_dev) && |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2510 | !mlxsw_sp_master_bridge_check(mlxsw_sp, upper_dev)) |
| 2511 | return NOTIFY_BAD; |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 2512 | if (netif_is_lag_master(upper_dev) && |
| 2513 | !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev, |
| 2514 | info->upper_info)) |
| 2515 | return NOTIFY_BAD; |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2516 | break; |
| 2517 | case NETDEV_CHANGEUPPER: |
| 2518 | upper_dev = info->upper_dev; |
Ido Schimmel | 9589a7b5 | 2015-12-15 16:03:43 +0100 | [diff] [blame] | 2519 | if (is_vlan_dev(upper_dev)) { |
| 2520 | if (info->linking) { |
| 2521 | err = mlxsw_sp_port_vlan_link(mlxsw_sp_port, |
| 2522 | upper_dev); |
| 2523 | if (err) { |
| 2524 | netdev_err(dev, "Failed to link VLAN device\n"); |
| 2525 | return NOTIFY_BAD; |
| 2526 | } |
| 2527 | } else { |
| 2528 | err = mlxsw_sp_port_vlan_unlink(mlxsw_sp_port, |
| 2529 | upper_dev); |
| 2530 | if (err) { |
| 2531 | netdev_err(dev, "Failed to unlink VLAN device\n"); |
| 2532 | return NOTIFY_BAD; |
| 2533 | } |
| 2534 | } |
| 2535 | } else if (netif_is_bridge_master(upper_dev)) { |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2536 | if (info->linking) { |
| 2537 | err = mlxsw_sp_port_bridge_join(mlxsw_sp_port); |
Ido Schimmel | 7812407 | 2016-01-04 10:42:24 +0100 | [diff] [blame] | 2538 | if (err) { |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2539 | netdev_err(dev, "Failed to join bridge\n"); |
Ido Schimmel | 7812407 | 2016-01-04 10:42:24 +0100 | [diff] [blame] | 2540 | return NOTIFY_BAD; |
| 2541 | } |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2542 | mlxsw_sp_master_bridge_inc(mlxsw_sp, upper_dev); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2543 | } else { |
Ido Schimmel | 039c49a | 2016-01-27 15:20:18 +0100 | [diff] [blame] | 2544 | err = mlxsw_sp_port_bridge_leave(mlxsw_sp_port, |
| 2545 | true); |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2546 | mlxsw_sp_master_bridge_dec(mlxsw_sp, upper_dev); |
Ido Schimmel | 7812407 | 2016-01-04 10:42:24 +0100 | [diff] [blame] | 2547 | if (err) { |
| 2548 | netdev_err(dev, "Failed to leave bridge\n"); |
| 2549 | return NOTIFY_BAD; |
| 2550 | } |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2551 | } |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 2552 | } else if (netif_is_lag_master(upper_dev)) { |
| 2553 | if (info->linking) { |
| 2554 | err = mlxsw_sp_port_lag_join(mlxsw_sp_port, |
| 2555 | upper_dev); |
| 2556 | if (err) { |
| 2557 | netdev_err(dev, "Failed to join link aggregation\n"); |
| 2558 | return NOTIFY_BAD; |
| 2559 | } |
| 2560 | } else { |
| 2561 | err = mlxsw_sp_port_lag_leave(mlxsw_sp_port, |
| 2562 | upper_dev); |
| 2563 | if (err) { |
| 2564 | netdev_err(dev, "Failed to leave link aggregation\n"); |
| 2565 | return NOTIFY_BAD; |
| 2566 | } |
| 2567 | } |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 2568 | } |
| 2569 | break; |
| 2570 | } |
| 2571 | |
| 2572 | return NOTIFY_DONE; |
| 2573 | } |
| 2574 | |
Jiri Pirko | 7458120 | 2015-12-03 12:12:30 +0100 | [diff] [blame] | 2575 | static int mlxsw_sp_netdevice_port_lower_event(struct net_device *dev, |
| 2576 | unsigned long event, void *ptr) |
| 2577 | { |
| 2578 | struct netdev_notifier_changelowerstate_info *info; |
| 2579 | struct mlxsw_sp_port *mlxsw_sp_port; |
| 2580 | int err; |
| 2581 | |
| 2582 | mlxsw_sp_port = netdev_priv(dev); |
| 2583 | info = ptr; |
| 2584 | |
| 2585 | switch (event) { |
| 2586 | case NETDEV_CHANGELOWERSTATE: |
| 2587 | if (netif_is_lag_port(dev) && mlxsw_sp_port->lagged) { |
| 2588 | err = mlxsw_sp_port_lag_changed(mlxsw_sp_port, |
| 2589 | info->lower_state_info); |
| 2590 | if (err) |
| 2591 | netdev_err(dev, "Failed to reflect link aggregation lower state change\n"); |
| 2592 | } |
| 2593 | break; |
| 2594 | } |
| 2595 | |
| 2596 | return NOTIFY_DONE; |
| 2597 | } |
| 2598 | |
| 2599 | static int mlxsw_sp_netdevice_port_event(struct net_device *dev, |
| 2600 | unsigned long event, void *ptr) |
| 2601 | { |
| 2602 | switch (event) { |
| 2603 | case NETDEV_PRECHANGEUPPER: |
| 2604 | case NETDEV_CHANGEUPPER: |
| 2605 | return mlxsw_sp_netdevice_port_upper_event(dev, event, ptr); |
| 2606 | case NETDEV_CHANGELOWERSTATE: |
| 2607 | return mlxsw_sp_netdevice_port_lower_event(dev, event, ptr); |
| 2608 | } |
| 2609 | |
| 2610 | return NOTIFY_DONE; |
| 2611 | } |
| 2612 | |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 2613 | static int mlxsw_sp_netdevice_lag_event(struct net_device *lag_dev, |
| 2614 | unsigned long event, void *ptr) |
| 2615 | { |
| 2616 | struct net_device *dev; |
| 2617 | struct list_head *iter; |
| 2618 | int ret; |
| 2619 | |
| 2620 | netdev_for_each_lower_dev(lag_dev, dev, iter) { |
| 2621 | if (mlxsw_sp_port_dev_check(dev)) { |
| 2622 | ret = mlxsw_sp_netdevice_port_event(dev, event, ptr); |
| 2623 | if (ret == NOTIFY_BAD) |
| 2624 | return ret; |
| 2625 | } |
| 2626 | } |
| 2627 | |
| 2628 | return NOTIFY_DONE; |
| 2629 | } |
| 2630 | |
Ido Schimmel | 26f0e7f | 2015-12-15 16:03:44 +0100 | [diff] [blame] | 2631 | static struct mlxsw_sp_vfid * |
| 2632 | mlxsw_sp_br_vfid_find(const struct mlxsw_sp *mlxsw_sp, |
| 2633 | const struct net_device *br_dev) |
| 2634 | { |
| 2635 | struct mlxsw_sp_vfid *vfid; |
| 2636 | |
| 2637 | list_for_each_entry(vfid, &mlxsw_sp->br_vfids.list, list) { |
| 2638 | if (vfid->br_dev == br_dev) |
| 2639 | return vfid; |
| 2640 | } |
| 2641 | |
| 2642 | return NULL; |
| 2643 | } |
| 2644 | |
| 2645 | static u16 mlxsw_sp_vfid_to_br_vfid(u16 vfid) |
| 2646 | { |
| 2647 | return vfid - MLXSW_SP_VFID_PORT_MAX; |
| 2648 | } |
| 2649 | |
| 2650 | static u16 mlxsw_sp_br_vfid_to_vfid(u16 br_vfid) |
| 2651 | { |
| 2652 | return MLXSW_SP_VFID_PORT_MAX + br_vfid; |
| 2653 | } |
| 2654 | |
| 2655 | static u16 mlxsw_sp_avail_br_vfid_get(const struct mlxsw_sp *mlxsw_sp) |
| 2656 | { |
| 2657 | return find_first_zero_bit(mlxsw_sp->br_vfids.mapped, |
| 2658 | MLXSW_SP_VFID_BR_MAX); |
| 2659 | } |
| 2660 | |
| 2661 | static struct mlxsw_sp_vfid *mlxsw_sp_br_vfid_create(struct mlxsw_sp *mlxsw_sp, |
| 2662 | struct net_device *br_dev) |
| 2663 | { |
| 2664 | struct device *dev = mlxsw_sp->bus_info->dev; |
| 2665 | struct mlxsw_sp_vfid *vfid; |
| 2666 | u16 n_vfid; |
| 2667 | int err; |
| 2668 | |
| 2669 | n_vfid = mlxsw_sp_br_vfid_to_vfid(mlxsw_sp_avail_br_vfid_get(mlxsw_sp)); |
| 2670 | if (n_vfid == MLXSW_SP_VFID_MAX) { |
| 2671 | dev_err(dev, "No available vFIDs\n"); |
| 2672 | return ERR_PTR(-ERANGE); |
| 2673 | } |
| 2674 | |
| 2675 | err = __mlxsw_sp_vfid_create(mlxsw_sp, n_vfid); |
| 2676 | if (err) { |
| 2677 | dev_err(dev, "Failed to create vFID=%d\n", n_vfid); |
| 2678 | return ERR_PTR(err); |
| 2679 | } |
| 2680 | |
| 2681 | vfid = kzalloc(sizeof(*vfid), GFP_KERNEL); |
| 2682 | if (!vfid) |
| 2683 | goto err_allocate_vfid; |
| 2684 | |
| 2685 | vfid->vfid = n_vfid; |
| 2686 | vfid->br_dev = br_dev; |
| 2687 | |
| 2688 | list_add(&vfid->list, &mlxsw_sp->br_vfids.list); |
| 2689 | set_bit(mlxsw_sp_vfid_to_br_vfid(n_vfid), mlxsw_sp->br_vfids.mapped); |
| 2690 | |
| 2691 | return vfid; |
| 2692 | |
| 2693 | err_allocate_vfid: |
| 2694 | __mlxsw_sp_vfid_destroy(mlxsw_sp, n_vfid); |
| 2695 | return ERR_PTR(-ENOMEM); |
| 2696 | } |
| 2697 | |
| 2698 | static void mlxsw_sp_br_vfid_destroy(struct mlxsw_sp *mlxsw_sp, |
| 2699 | struct mlxsw_sp_vfid *vfid) |
| 2700 | { |
| 2701 | u16 br_vfid = mlxsw_sp_vfid_to_br_vfid(vfid->vfid); |
| 2702 | |
| 2703 | clear_bit(br_vfid, mlxsw_sp->br_vfids.mapped); |
| 2704 | list_del(&vfid->list); |
| 2705 | |
| 2706 | __mlxsw_sp_vfid_destroy(mlxsw_sp, vfid->vfid); |
| 2707 | |
| 2708 | kfree(vfid); |
| 2709 | } |
| 2710 | |
| 2711 | static int mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_vport, |
Ido Schimmel | 039c49a | 2016-01-27 15:20:18 +0100 | [diff] [blame] | 2712 | struct net_device *br_dev, |
| 2713 | bool flush_fdb) |
Ido Schimmel | 26f0e7f | 2015-12-15 16:03:44 +0100 | [diff] [blame] | 2714 | { |
| 2715 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp; |
| 2716 | u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport); |
| 2717 | struct net_device *dev = mlxsw_sp_vport->dev; |
| 2718 | struct mlxsw_sp_vfid *vfid, *new_vfid; |
| 2719 | int err; |
| 2720 | |
| 2721 | vfid = mlxsw_sp_br_vfid_find(mlxsw_sp, br_dev); |
| 2722 | if (!vfid) { |
| 2723 | WARN_ON(!vfid); |
| 2724 | return -EINVAL; |
| 2725 | } |
| 2726 | |
| 2727 | /* We need a vFID to go back to after leaving the bridge's vFID. */ |
| 2728 | new_vfid = mlxsw_sp_vfid_find(mlxsw_sp, vid); |
| 2729 | if (!new_vfid) { |
| 2730 | new_vfid = mlxsw_sp_vfid_create(mlxsw_sp, vid); |
| 2731 | if (IS_ERR(new_vfid)) { |
| 2732 | netdev_err(dev, "Failed to create vFID for VID=%d\n", |
| 2733 | vid); |
| 2734 | return PTR_ERR(new_vfid); |
| 2735 | } |
| 2736 | } |
| 2737 | |
| 2738 | /* Invalidate existing {Port, VID} to vFID mapping and create a new |
| 2739 | * one for the new vFID. |
| 2740 | */ |
| 2741 | err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
| 2742 | MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, |
| 2743 | false, |
| 2744 | mlxsw_sp_vfid_to_fid(vfid->vfid), |
| 2745 | vid); |
| 2746 | if (err) { |
| 2747 | netdev_err(dev, "Failed to invalidate {Port, VID} to vFID=%d mapping\n", |
| 2748 | vfid->vfid); |
| 2749 | goto err_port_vid_to_fid_invalidate; |
| 2750 | } |
| 2751 | |
| 2752 | err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
| 2753 | MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, |
| 2754 | true, |
| 2755 | mlxsw_sp_vfid_to_fid(new_vfid->vfid), |
| 2756 | vid); |
| 2757 | if (err) { |
| 2758 | netdev_err(dev, "Failed to map {Port, VID} to vFID=%d\n", |
| 2759 | new_vfid->vfid); |
| 2760 | goto err_port_vid_to_fid_validate; |
| 2761 | } |
| 2762 | |
| 2763 | err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false); |
| 2764 | if (err) { |
| 2765 | netdev_err(dev, "Failed to disable learning\n"); |
| 2766 | goto err_port_vid_learning_set; |
| 2767 | } |
| 2768 | |
| 2769 | err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, false, |
| 2770 | false); |
| 2771 | if (err) { |
| 2772 | netdev_err(dev, "Failed clear to clear flooding\n"); |
| 2773 | goto err_vport_flood_set; |
| 2774 | } |
| 2775 | |
Ido Schimmel | 6a9863a | 2016-02-15 13:19:54 +0100 | [diff] [blame] | 2776 | err = mlxsw_sp_port_stp_state_set(mlxsw_sp_vport, vid, |
| 2777 | MLXSW_REG_SPMS_STATE_FORWARDING); |
| 2778 | if (err) { |
| 2779 | netdev_err(dev, "Failed to set STP state\n"); |
| 2780 | goto err_port_stp_state_set; |
| 2781 | } |
| 2782 | |
Ido Schimmel | 039c49a | 2016-01-27 15:20:18 +0100 | [diff] [blame] | 2783 | if (flush_fdb && mlxsw_sp_vport_fdb_flush(mlxsw_sp_vport)) |
| 2784 | netdev_err(dev, "Failed to flush FDB\n"); |
| 2785 | |
Ido Schimmel | 26f0e7f | 2015-12-15 16:03:44 +0100 | [diff] [blame] | 2786 | /* Switch between the vFIDs and destroy the old one if needed. */ |
| 2787 | new_vfid->nr_vports++; |
| 2788 | mlxsw_sp_vport->vport.vfid = new_vfid; |
| 2789 | vfid->nr_vports--; |
| 2790 | if (!vfid->nr_vports) |
| 2791 | mlxsw_sp_br_vfid_destroy(mlxsw_sp, vfid); |
| 2792 | |
| 2793 | mlxsw_sp_vport->learning = 0; |
| 2794 | mlxsw_sp_vport->learning_sync = 0; |
| 2795 | mlxsw_sp_vport->uc_flood = 0; |
| 2796 | mlxsw_sp_vport->bridged = 0; |
| 2797 | |
| 2798 | return 0; |
| 2799 | |
Ido Schimmel | 6a9863a | 2016-02-15 13:19:54 +0100 | [diff] [blame] | 2800 | err_port_stp_state_set: |
Ido Schimmel | 26f0e7f | 2015-12-15 16:03:44 +0100 | [diff] [blame] | 2801 | err_vport_flood_set: |
| 2802 | err_port_vid_learning_set: |
| 2803 | err_port_vid_to_fid_validate: |
| 2804 | err_port_vid_to_fid_invalidate: |
| 2805 | /* Rollback vFID only if new. */ |
| 2806 | if (!new_vfid->nr_vports) |
| 2807 | mlxsw_sp_vfid_destroy(mlxsw_sp, new_vfid); |
| 2808 | return err; |
| 2809 | } |
| 2810 | |
| 2811 | static int mlxsw_sp_vport_bridge_join(struct mlxsw_sp_port *mlxsw_sp_vport, |
| 2812 | struct net_device *br_dev) |
| 2813 | { |
| 2814 | struct mlxsw_sp_vfid *old_vfid = mlxsw_sp_vport->vport.vfid; |
| 2815 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp; |
| 2816 | u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport); |
| 2817 | struct net_device *dev = mlxsw_sp_vport->dev; |
| 2818 | struct mlxsw_sp_vfid *vfid; |
| 2819 | int err; |
| 2820 | |
| 2821 | vfid = mlxsw_sp_br_vfid_find(mlxsw_sp, br_dev); |
| 2822 | if (!vfid) { |
| 2823 | vfid = mlxsw_sp_br_vfid_create(mlxsw_sp, br_dev); |
| 2824 | if (IS_ERR(vfid)) { |
| 2825 | netdev_err(dev, "Failed to create bridge vFID\n"); |
| 2826 | return PTR_ERR(vfid); |
| 2827 | } |
| 2828 | } |
| 2829 | |
| 2830 | err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, true, false); |
| 2831 | if (err) { |
| 2832 | netdev_err(dev, "Failed to setup flooding for vFID=%d\n", |
| 2833 | vfid->vfid); |
| 2834 | goto err_port_flood_set; |
| 2835 | } |
| 2836 | |
| 2837 | err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true); |
| 2838 | if (err) { |
| 2839 | netdev_err(dev, "Failed to enable learning\n"); |
| 2840 | goto err_port_vid_learning_set; |
| 2841 | } |
| 2842 | |
| 2843 | /* We need to invalidate existing {Port, VID} to vFID mapping and |
| 2844 | * create a new one for the bridge's vFID. |
| 2845 | */ |
| 2846 | err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
| 2847 | MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, |
| 2848 | false, |
| 2849 | mlxsw_sp_vfid_to_fid(old_vfid->vfid), |
| 2850 | vid); |
| 2851 | if (err) { |
| 2852 | netdev_err(dev, "Failed to invalidate {Port, VID} to vFID=%d mapping\n", |
| 2853 | old_vfid->vfid); |
| 2854 | goto err_port_vid_to_fid_invalidate; |
| 2855 | } |
| 2856 | |
| 2857 | err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
| 2858 | MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, |
| 2859 | true, |
| 2860 | mlxsw_sp_vfid_to_fid(vfid->vfid), |
| 2861 | vid); |
| 2862 | if (err) { |
| 2863 | netdev_err(dev, "Failed to map {Port, VID} to vFID=%d\n", |
| 2864 | vfid->vfid); |
| 2865 | goto err_port_vid_to_fid_validate; |
| 2866 | } |
| 2867 | |
| 2868 | /* Switch between the vFIDs and destroy the old one if needed. */ |
| 2869 | vfid->nr_vports++; |
| 2870 | mlxsw_sp_vport->vport.vfid = vfid; |
| 2871 | old_vfid->nr_vports--; |
| 2872 | if (!old_vfid->nr_vports) |
| 2873 | mlxsw_sp_vfid_destroy(mlxsw_sp, old_vfid); |
| 2874 | |
| 2875 | mlxsw_sp_vport->learning = 1; |
| 2876 | mlxsw_sp_vport->learning_sync = 1; |
| 2877 | mlxsw_sp_vport->uc_flood = 1; |
| 2878 | mlxsw_sp_vport->bridged = 1; |
| 2879 | |
| 2880 | return 0; |
| 2881 | |
| 2882 | err_port_vid_to_fid_validate: |
| 2883 | mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
| 2884 | MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, false, |
| 2885 | mlxsw_sp_vfid_to_fid(old_vfid->vfid), vid); |
| 2886 | err_port_vid_to_fid_invalidate: |
| 2887 | mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false); |
| 2888 | err_port_vid_learning_set: |
| 2889 | mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, false, false); |
| 2890 | err_port_flood_set: |
| 2891 | if (!vfid->nr_vports) |
| 2892 | mlxsw_sp_br_vfid_destroy(mlxsw_sp, vfid); |
| 2893 | return err; |
| 2894 | } |
| 2895 | |
| 2896 | static bool |
| 2897 | mlxsw_sp_port_master_bridge_check(const struct mlxsw_sp_port *mlxsw_sp_port, |
| 2898 | const struct net_device *br_dev) |
| 2899 | { |
| 2900 | struct mlxsw_sp_port *mlxsw_sp_vport; |
| 2901 | |
| 2902 | list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list, |
| 2903 | vport.list) { |
| 2904 | if (mlxsw_sp_vport_br_get(mlxsw_sp_vport) == br_dev) |
| 2905 | return false; |
| 2906 | } |
| 2907 | |
| 2908 | return true; |
| 2909 | } |
| 2910 | |
| 2911 | static int mlxsw_sp_netdevice_vport_event(struct net_device *dev, |
| 2912 | unsigned long event, void *ptr, |
| 2913 | u16 vid) |
| 2914 | { |
| 2915 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| 2916 | struct netdev_notifier_changeupper_info *info = ptr; |
| 2917 | struct mlxsw_sp_port *mlxsw_sp_vport; |
| 2918 | struct net_device *upper_dev; |
| 2919 | int err; |
| 2920 | |
| 2921 | mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid); |
| 2922 | |
| 2923 | switch (event) { |
| 2924 | case NETDEV_PRECHANGEUPPER: |
| 2925 | upper_dev = info->upper_dev; |
| 2926 | if (!info->master || !info->linking) |
| 2927 | break; |
| 2928 | if (!netif_is_bridge_master(upper_dev)) |
| 2929 | return NOTIFY_BAD; |
| 2930 | /* We can't have multiple VLAN interfaces configured on |
| 2931 | * the same port and being members in the same bridge. |
| 2932 | */ |
| 2933 | if (!mlxsw_sp_port_master_bridge_check(mlxsw_sp_port, |
| 2934 | upper_dev)) |
| 2935 | return NOTIFY_BAD; |
| 2936 | break; |
| 2937 | case NETDEV_CHANGEUPPER: |
| 2938 | upper_dev = info->upper_dev; |
| 2939 | if (!info->master) |
| 2940 | break; |
| 2941 | if (info->linking) { |
| 2942 | if (!mlxsw_sp_vport) { |
| 2943 | WARN_ON(!mlxsw_sp_vport); |
| 2944 | return NOTIFY_BAD; |
| 2945 | } |
| 2946 | err = mlxsw_sp_vport_bridge_join(mlxsw_sp_vport, |
| 2947 | upper_dev); |
| 2948 | if (err) { |
| 2949 | netdev_err(dev, "Failed to join bridge\n"); |
| 2950 | return NOTIFY_BAD; |
| 2951 | } |
| 2952 | } else { |
| 2953 | /* We ignore bridge's unlinking notifications if vPort |
| 2954 | * is gone, since we already left the bridge when the |
| 2955 | * VLAN device was unlinked from the real device. |
| 2956 | */ |
| 2957 | if (!mlxsw_sp_vport) |
| 2958 | return NOTIFY_DONE; |
| 2959 | err = mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport, |
Ido Schimmel | 039c49a | 2016-01-27 15:20:18 +0100 | [diff] [blame] | 2960 | upper_dev, true); |
Ido Schimmel | 26f0e7f | 2015-12-15 16:03:44 +0100 | [diff] [blame] | 2961 | if (err) { |
| 2962 | netdev_err(dev, "Failed to leave bridge\n"); |
| 2963 | return NOTIFY_BAD; |
| 2964 | } |
| 2965 | } |
| 2966 | } |
| 2967 | |
| 2968 | return NOTIFY_DONE; |
| 2969 | } |
| 2970 | |
Ido Schimmel | 272c447 | 2015-12-15 16:03:47 +0100 | [diff] [blame] | 2971 | static int mlxsw_sp_netdevice_lag_vport_event(struct net_device *lag_dev, |
| 2972 | unsigned long event, void *ptr, |
| 2973 | u16 vid) |
| 2974 | { |
| 2975 | struct net_device *dev; |
| 2976 | struct list_head *iter; |
| 2977 | int ret; |
| 2978 | |
| 2979 | netdev_for_each_lower_dev(lag_dev, dev, iter) { |
| 2980 | if (mlxsw_sp_port_dev_check(dev)) { |
| 2981 | ret = mlxsw_sp_netdevice_vport_event(dev, event, ptr, |
| 2982 | vid); |
| 2983 | if (ret == NOTIFY_BAD) |
| 2984 | return ret; |
| 2985 | } |
| 2986 | } |
| 2987 | |
| 2988 | return NOTIFY_DONE; |
| 2989 | } |
| 2990 | |
Ido Schimmel | 26f0e7f | 2015-12-15 16:03:44 +0100 | [diff] [blame] | 2991 | static int mlxsw_sp_netdevice_vlan_event(struct net_device *vlan_dev, |
| 2992 | unsigned long event, void *ptr) |
| 2993 | { |
| 2994 | struct net_device *real_dev = vlan_dev_real_dev(vlan_dev); |
| 2995 | u16 vid = vlan_dev_vlan_id(vlan_dev); |
| 2996 | |
Ido Schimmel | 272c447 | 2015-12-15 16:03:47 +0100 | [diff] [blame] | 2997 | if (mlxsw_sp_port_dev_check(real_dev)) |
| 2998 | return mlxsw_sp_netdevice_vport_event(real_dev, event, ptr, |
| 2999 | vid); |
| 3000 | else if (netif_is_lag_master(real_dev)) |
| 3001 | return mlxsw_sp_netdevice_lag_vport_event(real_dev, event, ptr, |
| 3002 | vid); |
Ido Schimmel | 26f0e7f | 2015-12-15 16:03:44 +0100 | [diff] [blame] | 3003 | |
Ido Schimmel | 272c447 | 2015-12-15 16:03:47 +0100 | [diff] [blame] | 3004 | return NOTIFY_DONE; |
Ido Schimmel | 26f0e7f | 2015-12-15 16:03:44 +0100 | [diff] [blame] | 3005 | } |
| 3006 | |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 3007 | static int mlxsw_sp_netdevice_event(struct notifier_block *unused, |
| 3008 | unsigned long event, void *ptr) |
| 3009 | { |
| 3010 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
| 3011 | |
| 3012 | if (mlxsw_sp_port_dev_check(dev)) |
| 3013 | return mlxsw_sp_netdevice_port_event(dev, event, ptr); |
| 3014 | |
| 3015 | if (netif_is_lag_master(dev)) |
| 3016 | return mlxsw_sp_netdevice_lag_event(dev, event, ptr); |
| 3017 | |
Ido Schimmel | 26f0e7f | 2015-12-15 16:03:44 +0100 | [diff] [blame] | 3018 | if (is_vlan_dev(dev)) |
| 3019 | return mlxsw_sp_netdevice_vlan_event(dev, event, ptr); |
| 3020 | |
Jiri Pirko | 0d65fc1 | 2015-12-03 12:12:28 +0100 | [diff] [blame] | 3021 | return NOTIFY_DONE; |
| 3022 | } |
| 3023 | |
Jiri Pirko | 56ade8f | 2015-10-16 14:01:37 +0200 | [diff] [blame] | 3024 | static struct notifier_block mlxsw_sp_netdevice_nb __read_mostly = { |
| 3025 | .notifier_call = mlxsw_sp_netdevice_event, |
| 3026 | }; |
| 3027 | |
| 3028 | static int __init mlxsw_sp_module_init(void) |
| 3029 | { |
| 3030 | int err; |
| 3031 | |
| 3032 | register_netdevice_notifier(&mlxsw_sp_netdevice_nb); |
| 3033 | err = mlxsw_core_driver_register(&mlxsw_sp_driver); |
| 3034 | if (err) |
| 3035 | goto err_core_driver_register; |
| 3036 | return 0; |
| 3037 | |
| 3038 | err_core_driver_register: |
| 3039 | unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb); |
| 3040 | return err; |
| 3041 | } |
| 3042 | |
| 3043 | static void __exit mlxsw_sp_module_exit(void) |
| 3044 | { |
| 3045 | mlxsw_core_driver_unregister(&mlxsw_sp_driver); |
| 3046 | unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb); |
| 3047 | } |
| 3048 | |
| 3049 | module_init(mlxsw_sp_module_init); |
| 3050 | module_exit(mlxsw_sp_module_exit); |
| 3051 | |
| 3052 | MODULE_LICENSE("Dual BSD/GPL"); |
| 3053 | MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>"); |
| 3054 | MODULE_DESCRIPTION("Mellanox Spectrum driver"); |
| 3055 | MODULE_MLXSW_DRIVER_ALIAS(MLXSW_DEVICE_KIND_SPECTRUM); |