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56ade8fe JP |
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> | |
7f71eb46 | 51 | #include <linux/list.h> |
56ade8fe JP |
52 | #include <net/switchdev.h> |
53 | #include <generated/utsrelease.h> | |
54 | ||
55 | #include "spectrum.h" | |
56 | #include "core.h" | |
57 | #include "reg.h" | |
58 | #include "port.h" | |
59 | #include "trap.h" | |
60 | #include "txheader.h" | |
61 | ||
62 | static const char mlxsw_sp_driver_name[] = "mlxsw_spectrum"; | |
63 | static const char mlxsw_sp_driver_version[] = "1.0"; | |
64 | ||
65 | /* tx_hdr_version | |
66 | * Tx header version. | |
67 | * Must be set to 1. | |
68 | */ | |
69 | MLXSW_ITEM32(tx, hdr, version, 0x00, 28, 4); | |
70 | ||
71 | /* tx_hdr_ctl | |
72 | * Packet control type. | |
73 | * 0 - Ethernet control (e.g. EMADs, LACP) | |
74 | * 1 - Ethernet data | |
75 | */ | |
76 | MLXSW_ITEM32(tx, hdr, ctl, 0x00, 26, 2); | |
77 | ||
78 | /* tx_hdr_proto | |
79 | * Packet protocol type. Must be set to 1 (Ethernet). | |
80 | */ | |
81 | MLXSW_ITEM32(tx, hdr, proto, 0x00, 21, 3); | |
82 | ||
83 | /* tx_hdr_rx_is_router | |
84 | * Packet is sent from the router. Valid for data packets only. | |
85 | */ | |
86 | MLXSW_ITEM32(tx, hdr, rx_is_router, 0x00, 19, 1); | |
87 | ||
88 | /* tx_hdr_fid_valid | |
89 | * Indicates if the 'fid' field is valid and should be used for | |
90 | * forwarding lookup. Valid for data packets only. | |
91 | */ | |
92 | MLXSW_ITEM32(tx, hdr, fid_valid, 0x00, 16, 1); | |
93 | ||
94 | /* tx_hdr_swid | |
95 | * Switch partition ID. Must be set to 0. | |
96 | */ | |
97 | MLXSW_ITEM32(tx, hdr, swid, 0x00, 12, 3); | |
98 | ||
99 | /* tx_hdr_control_tclass | |
100 | * Indicates if the packet should use the control TClass and not one | |
101 | * of the data TClasses. | |
102 | */ | |
103 | MLXSW_ITEM32(tx, hdr, control_tclass, 0x00, 6, 1); | |
104 | ||
105 | /* tx_hdr_etclass | |
106 | * Egress TClass to be used on the egress device on the egress port. | |
107 | */ | |
108 | MLXSW_ITEM32(tx, hdr, etclass, 0x00, 0, 4); | |
109 | ||
110 | /* tx_hdr_port_mid | |
111 | * Destination local port for unicast packets. | |
112 | * Destination multicast ID for multicast packets. | |
113 | * | |
114 | * Control packets are directed to a specific egress port, while data | |
115 | * packets are transmitted through the CPU port (0) into the switch partition, | |
116 | * where forwarding rules are applied. | |
117 | */ | |
118 | MLXSW_ITEM32(tx, hdr, port_mid, 0x04, 16, 16); | |
119 | ||
120 | /* tx_hdr_fid | |
121 | * Forwarding ID used for L2 forwarding lookup. Valid only if 'fid_valid' is | |
122 | * set, otherwise calculated based on the packet's VID using VID to FID mapping. | |
123 | * Valid for data packets only. | |
124 | */ | |
125 | MLXSW_ITEM32(tx, hdr, fid, 0x08, 0, 16); | |
126 | ||
127 | /* tx_hdr_type | |
128 | * 0 - Data packets | |
129 | * 6 - Control packets | |
130 | */ | |
131 | MLXSW_ITEM32(tx, hdr, type, 0x0C, 0, 4); | |
132 | ||
133 | static void mlxsw_sp_txhdr_construct(struct sk_buff *skb, | |
134 | const struct mlxsw_tx_info *tx_info) | |
135 | { | |
136 | char *txhdr = skb_push(skb, MLXSW_TXHDR_LEN); | |
137 | ||
138 | memset(txhdr, 0, MLXSW_TXHDR_LEN); | |
139 | ||
140 | mlxsw_tx_hdr_version_set(txhdr, MLXSW_TXHDR_VERSION_1); | |
141 | mlxsw_tx_hdr_ctl_set(txhdr, MLXSW_TXHDR_ETH_CTL); | |
142 | mlxsw_tx_hdr_proto_set(txhdr, MLXSW_TXHDR_PROTO_ETH); | |
143 | mlxsw_tx_hdr_swid_set(txhdr, 0); | |
144 | mlxsw_tx_hdr_control_tclass_set(txhdr, 1); | |
145 | mlxsw_tx_hdr_port_mid_set(txhdr, tx_info->local_port); | |
146 | mlxsw_tx_hdr_type_set(txhdr, MLXSW_TXHDR_TYPE_CONTROL); | |
147 | } | |
148 | ||
149 | static int mlxsw_sp_base_mac_get(struct mlxsw_sp *mlxsw_sp) | |
150 | { | |
151 | char spad_pl[MLXSW_REG_SPAD_LEN]; | |
152 | int err; | |
153 | ||
154 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(spad), spad_pl); | |
155 | if (err) | |
156 | return err; | |
157 | mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_sp->base_mac); | |
158 | return 0; | |
159 | } | |
160 | ||
161 | static int mlxsw_sp_port_admin_status_set(struct mlxsw_sp_port *mlxsw_sp_port, | |
162 | bool is_up) | |
163 | { | |
164 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
165 | char paos_pl[MLXSW_REG_PAOS_LEN]; | |
166 | ||
167 | mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port, | |
168 | is_up ? MLXSW_PORT_ADMIN_STATUS_UP : | |
169 | MLXSW_PORT_ADMIN_STATUS_DOWN); | |
170 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(paos), paos_pl); | |
171 | } | |
172 | ||
173 | static int mlxsw_sp_port_oper_status_get(struct mlxsw_sp_port *mlxsw_sp_port, | |
174 | bool *p_is_up) | |
175 | { | |
176 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
177 | char paos_pl[MLXSW_REG_PAOS_LEN]; | |
178 | u8 oper_status; | |
179 | int err; | |
180 | ||
181 | mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port, 0); | |
182 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(paos), paos_pl); | |
183 | if (err) | |
184 | return err; | |
185 | oper_status = mlxsw_reg_paos_oper_status_get(paos_pl); | |
186 | *p_is_up = oper_status == MLXSW_PORT_ADMIN_STATUS_UP ? true : false; | |
187 | return 0; | |
188 | } | |
189 | ||
56ade8fe JP |
190 | static int mlxsw_sp_port_dev_addr_set(struct mlxsw_sp_port *mlxsw_sp_port, |
191 | unsigned char *addr) | |
192 | { | |
193 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
194 | char ppad_pl[MLXSW_REG_PPAD_LEN]; | |
195 | ||
196 | mlxsw_reg_ppad_pack(ppad_pl, true, mlxsw_sp_port->local_port); | |
197 | mlxsw_reg_ppad_mac_memcpy_to(ppad_pl, addr); | |
198 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppad), ppad_pl); | |
199 | } | |
200 | ||
201 | static int mlxsw_sp_port_dev_addr_init(struct mlxsw_sp_port *mlxsw_sp_port) | |
202 | { | |
203 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
204 | unsigned char *addr = mlxsw_sp_port->dev->dev_addr; | |
205 | ||
206 | ether_addr_copy(addr, mlxsw_sp->base_mac); | |
207 | addr[ETH_ALEN - 1] += mlxsw_sp_port->local_port; | |
208 | return mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr); | |
209 | } | |
210 | ||
211 | static int mlxsw_sp_port_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port, | |
212 | u16 vid, enum mlxsw_reg_spms_state state) | |
213 | { | |
214 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
215 | char *spms_pl; | |
216 | int err; | |
217 | ||
218 | spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL); | |
219 | if (!spms_pl) | |
220 | return -ENOMEM; | |
221 | mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port); | |
222 | mlxsw_reg_spms_vid_pack(spms_pl, vid, state); | |
223 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl); | |
224 | kfree(spms_pl); | |
225 | return err; | |
226 | } | |
227 | ||
228 | static int mlxsw_sp_port_mtu_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu) | |
229 | { | |
230 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
231 | char pmtu_pl[MLXSW_REG_PMTU_LEN]; | |
232 | int max_mtu; | |
233 | int err; | |
234 | ||
235 | mtu += MLXSW_TXHDR_LEN + ETH_HLEN; | |
236 | mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, 0); | |
237 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl); | |
238 | if (err) | |
239 | return err; | |
240 | max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl); | |
241 | ||
242 | if (mtu > max_mtu) | |
243 | return -EINVAL; | |
244 | ||
245 | mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, mtu); | |
246 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl); | |
247 | } | |
248 | ||
249 | static int mlxsw_sp_port_swid_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 swid) | |
250 | { | |
251 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
252 | char pspa_pl[MLXSW_REG_PSPA_LEN]; | |
253 | ||
254 | mlxsw_reg_pspa_pack(pspa_pl, swid, mlxsw_sp_port->local_port); | |
255 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pspa), pspa_pl); | |
256 | } | |
257 | ||
258 | static int mlxsw_sp_port_vp_mode_set(struct mlxsw_sp_port *mlxsw_sp_port, | |
259 | bool enable) | |
260 | { | |
261 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
262 | char svpe_pl[MLXSW_REG_SVPE_LEN]; | |
263 | ||
264 | mlxsw_reg_svpe_pack(svpe_pl, mlxsw_sp_port->local_port, enable); | |
265 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svpe), svpe_pl); | |
266 | } | |
267 | ||
268 | int mlxsw_sp_port_vid_to_fid_set(struct mlxsw_sp_port *mlxsw_sp_port, | |
269 | enum mlxsw_reg_svfa_mt mt, bool valid, u16 fid, | |
270 | u16 vid) | |
271 | { | |
272 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
273 | char svfa_pl[MLXSW_REG_SVFA_LEN]; | |
274 | ||
275 | mlxsw_reg_svfa_pack(svfa_pl, mlxsw_sp_port->local_port, mt, valid, | |
276 | fid, vid); | |
277 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svfa), svfa_pl); | |
278 | } | |
279 | ||
280 | static int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port, | |
281 | u16 vid, bool learn_enable) | |
282 | { | |
283 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
284 | char *spvmlr_pl; | |
285 | int err; | |
286 | ||
287 | spvmlr_pl = kmalloc(MLXSW_REG_SPVMLR_LEN, GFP_KERNEL); | |
288 | if (!spvmlr_pl) | |
289 | return -ENOMEM; | |
290 | mlxsw_reg_spvmlr_pack(spvmlr_pl, mlxsw_sp_port->local_port, vid, vid, | |
291 | learn_enable); | |
292 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvmlr), spvmlr_pl); | |
293 | kfree(spvmlr_pl); | |
294 | return err; | |
295 | } | |
296 | ||
297 | static int | |
298 | mlxsw_sp_port_system_port_mapping_set(struct mlxsw_sp_port *mlxsw_sp_port) | |
299 | { | |
300 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
301 | char sspr_pl[MLXSW_REG_SSPR_LEN]; | |
302 | ||
303 | mlxsw_reg_sspr_pack(sspr_pl, mlxsw_sp_port->local_port); | |
304 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sspr), sspr_pl); | |
305 | } | |
306 | ||
307 | static int mlxsw_sp_port_module_check(struct mlxsw_sp_port *mlxsw_sp_port, | |
308 | bool *p_usable) | |
309 | { | |
310 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
311 | char pmlp_pl[MLXSW_REG_PMLP_LEN]; | |
312 | int err; | |
313 | ||
314 | mlxsw_reg_pmlp_pack(pmlp_pl, mlxsw_sp_port->local_port); | |
315 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl); | |
316 | if (err) | |
317 | return err; | |
318 | *p_usable = mlxsw_reg_pmlp_width_get(pmlp_pl) ? true : false; | |
319 | return 0; | |
320 | } | |
321 | ||
322 | static int mlxsw_sp_port_open(struct net_device *dev) | |
323 | { | |
324 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
325 | int err; | |
326 | ||
327 | err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true); | |
328 | if (err) | |
329 | return err; | |
330 | netif_start_queue(dev); | |
331 | return 0; | |
332 | } | |
333 | ||
334 | static int mlxsw_sp_port_stop(struct net_device *dev) | |
335 | { | |
336 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
337 | ||
338 | netif_stop_queue(dev); | |
339 | return mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); | |
340 | } | |
341 | ||
342 | static netdev_tx_t mlxsw_sp_port_xmit(struct sk_buff *skb, | |
343 | struct net_device *dev) | |
344 | { | |
345 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
346 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
347 | struct mlxsw_sp_port_pcpu_stats *pcpu_stats; | |
348 | const struct mlxsw_tx_info tx_info = { | |
349 | .local_port = mlxsw_sp_port->local_port, | |
350 | .is_emad = false, | |
351 | }; | |
352 | u64 len; | |
353 | int err; | |
354 | ||
355 | if (mlxsw_core_skb_transmit_busy(mlxsw_sp, &tx_info)) | |
356 | return NETDEV_TX_BUSY; | |
357 | ||
358 | if (unlikely(skb_headroom(skb) < MLXSW_TXHDR_LEN)) { | |
359 | struct sk_buff *skb_orig = skb; | |
360 | ||
361 | skb = skb_realloc_headroom(skb, MLXSW_TXHDR_LEN); | |
362 | if (!skb) { | |
363 | this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped); | |
364 | dev_kfree_skb_any(skb_orig); | |
365 | return NETDEV_TX_OK; | |
366 | } | |
367 | } | |
368 | ||
369 | if (eth_skb_pad(skb)) { | |
370 | this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped); | |
371 | return NETDEV_TX_OK; | |
372 | } | |
373 | ||
374 | mlxsw_sp_txhdr_construct(skb, &tx_info); | |
375 | len = skb->len; | |
376 | /* Due to a race we might fail here because of a full queue. In that | |
377 | * unlikely case we simply drop the packet. | |
378 | */ | |
379 | err = mlxsw_core_skb_transmit(mlxsw_sp, skb, &tx_info); | |
380 | ||
381 | if (!err) { | |
382 | pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats); | |
383 | u64_stats_update_begin(&pcpu_stats->syncp); | |
384 | pcpu_stats->tx_packets++; | |
385 | pcpu_stats->tx_bytes += len; | |
386 | u64_stats_update_end(&pcpu_stats->syncp); | |
387 | } else { | |
388 | this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped); | |
389 | dev_kfree_skb_any(skb); | |
390 | } | |
391 | return NETDEV_TX_OK; | |
392 | } | |
393 | ||
c5b9b518 JP |
394 | static void mlxsw_sp_set_rx_mode(struct net_device *dev) |
395 | { | |
396 | } | |
397 | ||
56ade8fe JP |
398 | static int mlxsw_sp_port_set_mac_address(struct net_device *dev, void *p) |
399 | { | |
400 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
401 | struct sockaddr *addr = p; | |
402 | int err; | |
403 | ||
404 | if (!is_valid_ether_addr(addr->sa_data)) | |
405 | return -EADDRNOTAVAIL; | |
406 | ||
407 | err = mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr->sa_data); | |
408 | if (err) | |
409 | return err; | |
410 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
411 | return 0; | |
412 | } | |
413 | ||
414 | static int mlxsw_sp_port_change_mtu(struct net_device *dev, int mtu) | |
415 | { | |
416 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
417 | int err; | |
418 | ||
419 | err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, mtu); | |
420 | if (err) | |
421 | return err; | |
422 | dev->mtu = mtu; | |
423 | return 0; | |
424 | } | |
425 | ||
426 | static struct rtnl_link_stats64 * | |
427 | mlxsw_sp_port_get_stats64(struct net_device *dev, | |
428 | struct rtnl_link_stats64 *stats) | |
429 | { | |
430 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
431 | struct mlxsw_sp_port_pcpu_stats *p; | |
432 | u64 rx_packets, rx_bytes, tx_packets, tx_bytes; | |
433 | u32 tx_dropped = 0; | |
434 | unsigned int start; | |
435 | int i; | |
436 | ||
437 | for_each_possible_cpu(i) { | |
438 | p = per_cpu_ptr(mlxsw_sp_port->pcpu_stats, i); | |
439 | do { | |
440 | start = u64_stats_fetch_begin_irq(&p->syncp); | |
441 | rx_packets = p->rx_packets; | |
442 | rx_bytes = p->rx_bytes; | |
443 | tx_packets = p->tx_packets; | |
444 | tx_bytes = p->tx_bytes; | |
445 | } while (u64_stats_fetch_retry_irq(&p->syncp, start)); | |
446 | ||
447 | stats->rx_packets += rx_packets; | |
448 | stats->rx_bytes += rx_bytes; | |
449 | stats->tx_packets += tx_packets; | |
450 | stats->tx_bytes += tx_bytes; | |
451 | /* tx_dropped is u32, updated without syncp protection. */ | |
452 | tx_dropped += p->tx_dropped; | |
453 | } | |
454 | stats->tx_dropped = tx_dropped; | |
455 | return stats; | |
456 | } | |
457 | ||
458 | int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin, | |
459 | u16 vid_end, bool is_member, bool untagged) | |
460 | { | |
461 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
462 | char *spvm_pl; | |
463 | int err; | |
464 | ||
465 | spvm_pl = kmalloc(MLXSW_REG_SPVM_LEN, GFP_KERNEL); | |
466 | if (!spvm_pl) | |
467 | return -ENOMEM; | |
468 | ||
469 | mlxsw_reg_spvm_pack(spvm_pl, mlxsw_sp_port->local_port, vid_begin, | |
470 | vid_end, is_member, untagged); | |
471 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvm), spvm_pl); | |
472 | kfree(spvm_pl); | |
473 | return err; | |
474 | } | |
475 | ||
476 | static int mlxsw_sp_port_vp_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port) | |
477 | { | |
478 | enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID; | |
479 | u16 vid, last_visited_vid; | |
480 | int err; | |
481 | ||
482 | for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) { | |
483 | err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, true, vid, | |
484 | vid); | |
485 | if (err) { | |
486 | last_visited_vid = vid; | |
487 | goto err_port_vid_to_fid_set; | |
488 | } | |
489 | } | |
490 | ||
491 | err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, true); | |
492 | if (err) { | |
493 | last_visited_vid = VLAN_N_VID; | |
494 | goto err_port_vid_to_fid_set; | |
495 | } | |
496 | ||
497 | return 0; | |
498 | ||
499 | err_port_vid_to_fid_set: | |
500 | for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid) | |
501 | mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false, vid, | |
502 | vid); | |
503 | return err; | |
504 | } | |
505 | ||
506 | static int mlxsw_sp_port_vlan_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port) | |
507 | { | |
508 | enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID; | |
509 | u16 vid; | |
510 | int err; | |
511 | ||
512 | err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false); | |
513 | if (err) | |
514 | return err; | |
515 | ||
516 | for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) { | |
517 | err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false, | |
518 | vid, vid); | |
519 | if (err) | |
520 | return err; | |
521 | } | |
522 | ||
523 | return 0; | |
524 | } | |
525 | ||
7f71eb46 IS |
526 | static struct mlxsw_sp_vfid * |
527 | mlxsw_sp_vfid_find(const struct mlxsw_sp *mlxsw_sp, u16 vid) | |
528 | { | |
529 | struct mlxsw_sp_vfid *vfid; | |
530 | ||
531 | list_for_each_entry(vfid, &mlxsw_sp->port_vfids.list, list) { | |
532 | if (vfid->vid == vid) | |
533 | return vfid; | |
534 | } | |
535 | ||
536 | return NULL; | |
537 | } | |
538 | ||
539 | static u16 mlxsw_sp_avail_vfid_get(const struct mlxsw_sp *mlxsw_sp) | |
540 | { | |
541 | return find_first_zero_bit(mlxsw_sp->port_vfids.mapped, | |
542 | MLXSW_SP_VFID_PORT_MAX); | |
543 | } | |
544 | ||
545 | static int __mlxsw_sp_vfid_create(struct mlxsw_sp *mlxsw_sp, u16 vfid) | |
546 | { | |
547 | u16 fid = mlxsw_sp_vfid_to_fid(vfid); | |
548 | char sfmr_pl[MLXSW_REG_SFMR_LEN]; | |
549 | ||
550 | mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_CREATE_FID, fid, 0); | |
551 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl); | |
552 | } | |
553 | ||
554 | static void __mlxsw_sp_vfid_destroy(struct mlxsw_sp *mlxsw_sp, u16 vfid) | |
555 | { | |
556 | u16 fid = mlxsw_sp_vfid_to_fid(vfid); | |
557 | char sfmr_pl[MLXSW_REG_SFMR_LEN]; | |
558 | ||
559 | mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_DESTROY_FID, fid, 0); | |
560 | mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl); | |
561 | } | |
562 | ||
563 | static struct mlxsw_sp_vfid *mlxsw_sp_vfid_create(struct mlxsw_sp *mlxsw_sp, | |
564 | u16 vid) | |
565 | { | |
566 | struct device *dev = mlxsw_sp->bus_info->dev; | |
567 | struct mlxsw_sp_vfid *vfid; | |
568 | u16 n_vfid; | |
569 | int err; | |
570 | ||
571 | n_vfid = mlxsw_sp_avail_vfid_get(mlxsw_sp); | |
572 | if (n_vfid == MLXSW_SP_VFID_PORT_MAX) { | |
573 | dev_err(dev, "No available vFIDs\n"); | |
574 | return ERR_PTR(-ERANGE); | |
575 | } | |
576 | ||
577 | err = __mlxsw_sp_vfid_create(mlxsw_sp, n_vfid); | |
578 | if (err) { | |
579 | dev_err(dev, "Failed to create vFID=%d\n", n_vfid); | |
580 | return ERR_PTR(err); | |
581 | } | |
582 | ||
583 | vfid = kzalloc(sizeof(*vfid), GFP_KERNEL); | |
584 | if (!vfid) | |
585 | goto err_allocate_vfid; | |
586 | ||
587 | vfid->vfid = n_vfid; | |
588 | vfid->vid = vid; | |
589 | ||
590 | list_add(&vfid->list, &mlxsw_sp->port_vfids.list); | |
591 | set_bit(n_vfid, mlxsw_sp->port_vfids.mapped); | |
592 | ||
593 | return vfid; | |
594 | ||
595 | err_allocate_vfid: | |
596 | __mlxsw_sp_vfid_destroy(mlxsw_sp, n_vfid); | |
597 | return ERR_PTR(-ENOMEM); | |
598 | } | |
599 | ||
600 | static void mlxsw_sp_vfid_destroy(struct mlxsw_sp *mlxsw_sp, | |
601 | struct mlxsw_sp_vfid *vfid) | |
602 | { | |
603 | clear_bit(vfid->vfid, mlxsw_sp->port_vfids.mapped); | |
604 | list_del(&vfid->list); | |
605 | ||
606 | __mlxsw_sp_vfid_destroy(mlxsw_sp, vfid->vfid); | |
607 | ||
608 | kfree(vfid); | |
609 | } | |
610 | ||
611 | static struct mlxsw_sp_port * | |
612 | mlxsw_sp_port_vport_create(struct mlxsw_sp_port *mlxsw_sp_port, | |
613 | struct mlxsw_sp_vfid *vfid) | |
614 | { | |
615 | struct mlxsw_sp_port *mlxsw_sp_vport; | |
616 | ||
617 | mlxsw_sp_vport = kzalloc(sizeof(*mlxsw_sp_vport), GFP_KERNEL); | |
618 | if (!mlxsw_sp_vport) | |
619 | return NULL; | |
620 | ||
621 | /* dev will be set correctly after the VLAN device is linked | |
622 | * with the real device. In case of bridge SELF invocation, dev | |
623 | * will remain as is. | |
624 | */ | |
625 | mlxsw_sp_vport->dev = mlxsw_sp_port->dev; | |
626 | mlxsw_sp_vport->mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
627 | mlxsw_sp_vport->local_port = mlxsw_sp_port->local_port; | |
628 | mlxsw_sp_vport->stp_state = BR_STATE_FORWARDING; | |
272c4470 IS |
629 | mlxsw_sp_vport->lagged = mlxsw_sp_port->lagged; |
630 | mlxsw_sp_vport->lag_id = mlxsw_sp_port->lag_id; | |
7f71eb46 IS |
631 | mlxsw_sp_vport->vport.vfid = vfid; |
632 | mlxsw_sp_vport->vport.vid = vfid->vid; | |
633 | ||
634 | list_add(&mlxsw_sp_vport->vport.list, &mlxsw_sp_port->vports_list); | |
635 | ||
636 | return mlxsw_sp_vport; | |
637 | } | |
638 | ||
639 | static void mlxsw_sp_port_vport_destroy(struct mlxsw_sp_port *mlxsw_sp_vport) | |
640 | { | |
641 | list_del(&mlxsw_sp_vport->vport.list); | |
642 | kfree(mlxsw_sp_vport); | |
643 | } | |
644 | ||
56ade8fe JP |
645 | int mlxsw_sp_port_add_vid(struct net_device *dev, __be16 __always_unused proto, |
646 | u16 vid) | |
647 | { | |
648 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
649 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
7f71eb46 IS |
650 | struct mlxsw_sp_port *mlxsw_sp_vport; |
651 | struct mlxsw_sp_vfid *vfid; | |
56ade8fe JP |
652 | int err; |
653 | ||
654 | /* VLAN 0 is added to HW filter when device goes up, but it is | |
655 | * reserved in our case, so simply return. | |
656 | */ | |
657 | if (!vid) | |
658 | return 0; | |
659 | ||
7f71eb46 | 660 | if (mlxsw_sp_port_vport_find(mlxsw_sp_port, vid)) { |
56ade8fe JP |
661 | netdev_warn(dev, "VID=%d already configured\n", vid); |
662 | return 0; | |
663 | } | |
664 | ||
7f71eb46 IS |
665 | vfid = mlxsw_sp_vfid_find(mlxsw_sp, vid); |
666 | if (!vfid) { | |
667 | vfid = mlxsw_sp_vfid_create(mlxsw_sp, vid); | |
668 | if (IS_ERR(vfid)) { | |
669 | netdev_err(dev, "Failed to create vFID for VID=%d\n", | |
670 | vid); | |
671 | return PTR_ERR(vfid); | |
56ade8fe | 672 | } |
7f71eb46 | 673 | } |
56ade8fe | 674 | |
7f71eb46 IS |
675 | mlxsw_sp_vport = mlxsw_sp_port_vport_create(mlxsw_sp_port, vfid); |
676 | if (!mlxsw_sp_vport) { | |
677 | netdev_err(dev, "Failed to create vPort for VID=%d\n", vid); | |
678 | err = -ENOMEM; | |
679 | goto err_port_vport_create; | |
680 | } | |
681 | ||
682 | if (!vfid->nr_vports) { | |
683 | err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, | |
19ae6124 | 684 | true, false); |
56ade8fe | 685 | if (err) { |
7f71eb46 IS |
686 | netdev_err(dev, "Failed to setup flooding for vFID=%d\n", |
687 | vfid->vfid); | |
688 | goto err_vport_flood_set; | |
56ade8fe JP |
689 | } |
690 | } | |
691 | ||
56ade8fe JP |
692 | /* When adding the first VLAN interface on a bridged port we need to |
693 | * transition all the active 802.1Q bridge VLANs to use explicit | |
694 | * {Port, VID} to FID mappings and set the port's mode to Virtual mode. | |
695 | */ | |
7f71eb46 | 696 | if (list_is_singular(&mlxsw_sp_port->vports_list)) { |
56ade8fe JP |
697 | err = mlxsw_sp_port_vp_mode_trans(mlxsw_sp_port); |
698 | if (err) { | |
699 | netdev_err(dev, "Failed to set to Virtual mode\n"); | |
7f71eb46 | 700 | goto err_port_vp_mode_trans; |
56ade8fe JP |
701 | } |
702 | } | |
703 | ||
7f71eb46 | 704 | err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
56ade8fe | 705 | MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, |
7f71eb46 IS |
706 | true, |
707 | mlxsw_sp_vfid_to_fid(vfid->vfid), | |
708 | vid); | |
56ade8fe JP |
709 | if (err) { |
710 | netdev_err(dev, "Failed to map {Port, VID=%d} to vFID=%d\n", | |
7f71eb46 | 711 | vid, vfid->vfid); |
56ade8fe JP |
712 | goto err_port_vid_to_fid_set; |
713 | } | |
714 | ||
7f71eb46 | 715 | err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false); |
56ade8fe JP |
716 | if (err) { |
717 | netdev_err(dev, "Failed to disable learning for VID=%d\n", vid); | |
718 | goto err_port_vid_learning_set; | |
719 | } | |
720 | ||
7f71eb46 | 721 | err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, true, false); |
56ade8fe JP |
722 | if (err) { |
723 | netdev_err(dev, "Failed to set VLAN membership for VID=%d\n", | |
724 | vid); | |
725 | goto err_port_add_vid; | |
726 | } | |
727 | ||
7f71eb46 | 728 | err = mlxsw_sp_port_stp_state_set(mlxsw_sp_vport, vid, |
56ade8fe JP |
729 | MLXSW_REG_SPMS_STATE_FORWARDING); |
730 | if (err) { | |
731 | netdev_err(dev, "Failed to set STP state for VID=%d\n", vid); | |
732 | goto err_port_stp_state_set; | |
733 | } | |
734 | ||
7f71eb46 | 735 | vfid->nr_vports++; |
56ade8fe JP |
736 | |
737 | return 0; | |
738 | ||
56ade8fe | 739 | err_port_stp_state_set: |
7f71eb46 | 740 | mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, false, false); |
56ade8fe | 741 | err_port_add_vid: |
7f71eb46 | 742 | mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true); |
56ade8fe | 743 | err_port_vid_learning_set: |
7f71eb46 | 744 | mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
56ade8fe | 745 | MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, false, |
7f71eb46 | 746 | mlxsw_sp_vfid_to_fid(vfid->vfid), vid); |
56ade8fe | 747 | err_port_vid_to_fid_set: |
7f71eb46 IS |
748 | if (list_is_singular(&mlxsw_sp_port->vports_list)) |
749 | mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port); | |
750 | err_port_vp_mode_trans: | |
751 | if (!vfid->nr_vports) | |
19ae6124 IS |
752 | mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, false, |
753 | false); | |
7f71eb46 IS |
754 | err_vport_flood_set: |
755 | mlxsw_sp_port_vport_destroy(mlxsw_sp_vport); | |
756 | err_port_vport_create: | |
757 | if (!vfid->nr_vports) | |
758 | mlxsw_sp_vfid_destroy(mlxsw_sp, vfid); | |
56ade8fe JP |
759 | return err; |
760 | } | |
761 | ||
762 | int mlxsw_sp_port_kill_vid(struct net_device *dev, | |
763 | __be16 __always_unused proto, u16 vid) | |
764 | { | |
765 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
7f71eb46 IS |
766 | struct mlxsw_sp_port *mlxsw_sp_vport; |
767 | struct mlxsw_sp_vfid *vfid; | |
56ade8fe JP |
768 | int err; |
769 | ||
770 | /* VLAN 0 is removed from HW filter when device goes down, but | |
771 | * it is reserved in our case, so simply return. | |
772 | */ | |
773 | if (!vid) | |
774 | return 0; | |
775 | ||
7f71eb46 IS |
776 | mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid); |
777 | if (!mlxsw_sp_vport) { | |
56ade8fe JP |
778 | netdev_warn(dev, "VID=%d does not exist\n", vid); |
779 | return 0; | |
780 | } | |
781 | ||
7f71eb46 IS |
782 | vfid = mlxsw_sp_vport->vport.vfid; |
783 | ||
784 | err = mlxsw_sp_port_stp_state_set(mlxsw_sp_vport, vid, | |
56ade8fe JP |
785 | MLXSW_REG_SPMS_STATE_DISCARDING); |
786 | if (err) { | |
787 | netdev_err(dev, "Failed to set STP state for VID=%d\n", vid); | |
788 | return err; | |
789 | } | |
790 | ||
7f71eb46 | 791 | err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, false, false); |
56ade8fe JP |
792 | if (err) { |
793 | netdev_err(dev, "Failed to set VLAN membership for VID=%d\n", | |
794 | vid); | |
795 | return err; | |
796 | } | |
797 | ||
7f71eb46 | 798 | err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true); |
56ade8fe JP |
799 | if (err) { |
800 | netdev_err(dev, "Failed to enable learning for VID=%d\n", vid); | |
801 | return err; | |
802 | } | |
803 | ||
7f71eb46 | 804 | err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
56ade8fe | 805 | MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, |
7f71eb46 IS |
806 | false, |
807 | mlxsw_sp_vfid_to_fid(vfid->vfid), | |
56ade8fe JP |
808 | vid); |
809 | if (err) { | |
810 | netdev_err(dev, "Failed to invalidate {Port, VID=%d} to vFID=%d mapping\n", | |
7f71eb46 | 811 | vid, vfid->vfid); |
56ade8fe JP |
812 | return err; |
813 | } | |
814 | ||
815 | /* When removing the last VLAN interface on a bridged port we need to | |
816 | * transition all active 802.1Q bridge VLANs to use VID to FID | |
817 | * mappings and set port's mode to VLAN mode. | |
818 | */ | |
7f71eb46 | 819 | if (list_is_singular(&mlxsw_sp_port->vports_list)) { |
56ade8fe JP |
820 | err = mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port); |
821 | if (err) { | |
822 | netdev_err(dev, "Failed to set to VLAN mode\n"); | |
823 | return err; | |
824 | } | |
825 | } | |
826 | ||
7f71eb46 IS |
827 | vfid->nr_vports--; |
828 | mlxsw_sp_port_vport_destroy(mlxsw_sp_vport); | |
829 | ||
830 | /* Destroy the vFID if no vPorts are assigned to it anymore. */ | |
831 | if (!vfid->nr_vports) | |
832 | mlxsw_sp_vfid_destroy(mlxsw_sp_port->mlxsw_sp, vfid); | |
56ade8fe JP |
833 | |
834 | return 0; | |
835 | } | |
836 | ||
837 | static const struct net_device_ops mlxsw_sp_port_netdev_ops = { | |
838 | .ndo_open = mlxsw_sp_port_open, | |
839 | .ndo_stop = mlxsw_sp_port_stop, | |
840 | .ndo_start_xmit = mlxsw_sp_port_xmit, | |
c5b9b518 | 841 | .ndo_set_rx_mode = mlxsw_sp_set_rx_mode, |
56ade8fe JP |
842 | .ndo_set_mac_address = mlxsw_sp_port_set_mac_address, |
843 | .ndo_change_mtu = mlxsw_sp_port_change_mtu, | |
844 | .ndo_get_stats64 = mlxsw_sp_port_get_stats64, | |
845 | .ndo_vlan_rx_add_vid = mlxsw_sp_port_add_vid, | |
846 | .ndo_vlan_rx_kill_vid = mlxsw_sp_port_kill_vid, | |
847 | .ndo_fdb_add = switchdev_port_fdb_add, | |
848 | .ndo_fdb_del = switchdev_port_fdb_del, | |
849 | .ndo_fdb_dump = switchdev_port_fdb_dump, | |
850 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, | |
851 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, | |
852 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, | |
853 | }; | |
854 | ||
855 | static void mlxsw_sp_port_get_drvinfo(struct net_device *dev, | |
856 | struct ethtool_drvinfo *drvinfo) | |
857 | { | |
858 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
859 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
860 | ||
861 | strlcpy(drvinfo->driver, mlxsw_sp_driver_name, sizeof(drvinfo->driver)); | |
862 | strlcpy(drvinfo->version, mlxsw_sp_driver_version, | |
863 | sizeof(drvinfo->version)); | |
864 | snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), | |
865 | "%d.%d.%d", | |
866 | mlxsw_sp->bus_info->fw_rev.major, | |
867 | mlxsw_sp->bus_info->fw_rev.minor, | |
868 | mlxsw_sp->bus_info->fw_rev.subminor); | |
869 | strlcpy(drvinfo->bus_info, mlxsw_sp->bus_info->device_name, | |
870 | sizeof(drvinfo->bus_info)); | |
871 | } | |
872 | ||
873 | struct mlxsw_sp_port_hw_stats { | |
874 | char str[ETH_GSTRING_LEN]; | |
875 | u64 (*getter)(char *payload); | |
876 | }; | |
877 | ||
878 | static const struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_stats[] = { | |
879 | { | |
880 | .str = "a_frames_transmitted_ok", | |
881 | .getter = mlxsw_reg_ppcnt_a_frames_transmitted_ok_get, | |
882 | }, | |
883 | { | |
884 | .str = "a_frames_received_ok", | |
885 | .getter = mlxsw_reg_ppcnt_a_frames_received_ok_get, | |
886 | }, | |
887 | { | |
888 | .str = "a_frame_check_sequence_errors", | |
889 | .getter = mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get, | |
890 | }, | |
891 | { | |
892 | .str = "a_alignment_errors", | |
893 | .getter = mlxsw_reg_ppcnt_a_alignment_errors_get, | |
894 | }, | |
895 | { | |
896 | .str = "a_octets_transmitted_ok", | |
897 | .getter = mlxsw_reg_ppcnt_a_octets_transmitted_ok_get, | |
898 | }, | |
899 | { | |
900 | .str = "a_octets_received_ok", | |
901 | .getter = mlxsw_reg_ppcnt_a_octets_received_ok_get, | |
902 | }, | |
903 | { | |
904 | .str = "a_multicast_frames_xmitted_ok", | |
905 | .getter = mlxsw_reg_ppcnt_a_multicast_frames_xmitted_ok_get, | |
906 | }, | |
907 | { | |
908 | .str = "a_broadcast_frames_xmitted_ok", | |
909 | .getter = mlxsw_reg_ppcnt_a_broadcast_frames_xmitted_ok_get, | |
910 | }, | |
911 | { | |
912 | .str = "a_multicast_frames_received_ok", | |
913 | .getter = mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get, | |
914 | }, | |
915 | { | |
916 | .str = "a_broadcast_frames_received_ok", | |
917 | .getter = mlxsw_reg_ppcnt_a_broadcast_frames_received_ok_get, | |
918 | }, | |
919 | { | |
920 | .str = "a_in_range_length_errors", | |
921 | .getter = mlxsw_reg_ppcnt_a_in_range_length_errors_get, | |
922 | }, | |
923 | { | |
924 | .str = "a_out_of_range_length_field", | |
925 | .getter = mlxsw_reg_ppcnt_a_out_of_range_length_field_get, | |
926 | }, | |
927 | { | |
928 | .str = "a_frame_too_long_errors", | |
929 | .getter = mlxsw_reg_ppcnt_a_frame_too_long_errors_get, | |
930 | }, | |
931 | { | |
932 | .str = "a_symbol_error_during_carrier", | |
933 | .getter = mlxsw_reg_ppcnt_a_symbol_error_during_carrier_get, | |
934 | }, | |
935 | { | |
936 | .str = "a_mac_control_frames_transmitted", | |
937 | .getter = mlxsw_reg_ppcnt_a_mac_control_frames_transmitted_get, | |
938 | }, | |
939 | { | |
940 | .str = "a_mac_control_frames_received", | |
941 | .getter = mlxsw_reg_ppcnt_a_mac_control_frames_received_get, | |
942 | }, | |
943 | { | |
944 | .str = "a_unsupported_opcodes_received", | |
945 | .getter = mlxsw_reg_ppcnt_a_unsupported_opcodes_received_get, | |
946 | }, | |
947 | { | |
948 | .str = "a_pause_mac_ctrl_frames_received", | |
949 | .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_received_get, | |
950 | }, | |
951 | { | |
952 | .str = "a_pause_mac_ctrl_frames_xmitted", | |
953 | .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_transmitted_get, | |
954 | }, | |
955 | }; | |
956 | ||
957 | #define MLXSW_SP_PORT_HW_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_stats) | |
958 | ||
959 | static void mlxsw_sp_port_get_strings(struct net_device *dev, | |
960 | u32 stringset, u8 *data) | |
961 | { | |
962 | u8 *p = data; | |
963 | int i; | |
964 | ||
965 | switch (stringset) { | |
966 | case ETH_SS_STATS: | |
967 | for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++) { | |
968 | memcpy(p, mlxsw_sp_port_hw_stats[i].str, | |
969 | ETH_GSTRING_LEN); | |
970 | p += ETH_GSTRING_LEN; | |
971 | } | |
972 | break; | |
973 | } | |
974 | } | |
975 | ||
3a66ee38 IS |
976 | static int mlxsw_sp_port_set_phys_id(struct net_device *dev, |
977 | enum ethtool_phys_id_state state) | |
978 | { | |
979 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
980 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
981 | char mlcr_pl[MLXSW_REG_MLCR_LEN]; | |
982 | bool active; | |
983 | ||
984 | switch (state) { | |
985 | case ETHTOOL_ID_ACTIVE: | |
986 | active = true; | |
987 | break; | |
988 | case ETHTOOL_ID_INACTIVE: | |
989 | active = false; | |
990 | break; | |
991 | default: | |
992 | return -EOPNOTSUPP; | |
993 | } | |
994 | ||
995 | mlxsw_reg_mlcr_pack(mlcr_pl, mlxsw_sp_port->local_port, active); | |
996 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mlcr), mlcr_pl); | |
997 | } | |
998 | ||
56ade8fe JP |
999 | static void mlxsw_sp_port_get_stats(struct net_device *dev, |
1000 | struct ethtool_stats *stats, u64 *data) | |
1001 | { | |
1002 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
1003 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
1004 | char ppcnt_pl[MLXSW_REG_PPCNT_LEN]; | |
1005 | int i; | |
1006 | int err; | |
1007 | ||
1008 | mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port); | |
1009 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl); | |
1010 | for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++) | |
1011 | data[i] = !err ? mlxsw_sp_port_hw_stats[i].getter(ppcnt_pl) : 0; | |
1012 | } | |
1013 | ||
1014 | static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset) | |
1015 | { | |
1016 | switch (sset) { | |
1017 | case ETH_SS_STATS: | |
1018 | return MLXSW_SP_PORT_HW_STATS_LEN; | |
1019 | default: | |
1020 | return -EOPNOTSUPP; | |
1021 | } | |
1022 | } | |
1023 | ||
1024 | struct mlxsw_sp_port_link_mode { | |
1025 | u32 mask; | |
1026 | u32 supported; | |
1027 | u32 advertised; | |
1028 | u32 speed; | |
1029 | }; | |
1030 | ||
1031 | static const struct mlxsw_sp_port_link_mode mlxsw_sp_port_link_mode[] = { | |
1032 | { | |
1033 | .mask = MLXSW_REG_PTYS_ETH_SPEED_100BASE_T, | |
1034 | .supported = SUPPORTED_100baseT_Full, | |
1035 | .advertised = ADVERTISED_100baseT_Full, | |
1036 | .speed = 100, | |
1037 | }, | |
1038 | { | |
1039 | .mask = MLXSW_REG_PTYS_ETH_SPEED_100BASE_TX, | |
1040 | .speed = 100, | |
1041 | }, | |
1042 | { | |
1043 | .mask = MLXSW_REG_PTYS_ETH_SPEED_SGMII | | |
1044 | MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX, | |
1045 | .supported = SUPPORTED_1000baseKX_Full, | |
1046 | .advertised = ADVERTISED_1000baseKX_Full, | |
1047 | .speed = 1000, | |
1048 | }, | |
1049 | { | |
1050 | .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_T, | |
1051 | .supported = SUPPORTED_10000baseT_Full, | |
1052 | .advertised = ADVERTISED_10000baseT_Full, | |
1053 | .speed = 10000, | |
1054 | }, | |
1055 | { | |
1056 | .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4 | | |
1057 | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4, | |
1058 | .supported = SUPPORTED_10000baseKX4_Full, | |
1059 | .advertised = ADVERTISED_10000baseKX4_Full, | |
1060 | .speed = 10000, | |
1061 | }, | |
1062 | { | |
1063 | .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR | | |
1064 | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR | | |
1065 | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR | | |
1066 | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR, | |
1067 | .supported = SUPPORTED_10000baseKR_Full, | |
1068 | .advertised = ADVERTISED_10000baseKR_Full, | |
1069 | .speed = 10000, | |
1070 | }, | |
1071 | { | |
1072 | .mask = MLXSW_REG_PTYS_ETH_SPEED_20GBASE_KR2, | |
1073 | .supported = SUPPORTED_20000baseKR2_Full, | |
1074 | .advertised = ADVERTISED_20000baseKR2_Full, | |
1075 | .speed = 20000, | |
1076 | }, | |
1077 | { | |
1078 | .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4, | |
1079 | .supported = SUPPORTED_40000baseCR4_Full, | |
1080 | .advertised = ADVERTISED_40000baseCR4_Full, | |
1081 | .speed = 40000, | |
1082 | }, | |
1083 | { | |
1084 | .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4, | |
1085 | .supported = SUPPORTED_40000baseKR4_Full, | |
1086 | .advertised = ADVERTISED_40000baseKR4_Full, | |
1087 | .speed = 40000, | |
1088 | }, | |
1089 | { | |
1090 | .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4, | |
1091 | .supported = SUPPORTED_40000baseSR4_Full, | |
1092 | .advertised = ADVERTISED_40000baseSR4_Full, | |
1093 | .speed = 40000, | |
1094 | }, | |
1095 | { | |
1096 | .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4, | |
1097 | .supported = SUPPORTED_40000baseLR4_Full, | |
1098 | .advertised = ADVERTISED_40000baseLR4_Full, | |
1099 | .speed = 40000, | |
1100 | }, | |
1101 | { | |
1102 | .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR | | |
1103 | MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR | | |
1104 | MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR, | |
1105 | .speed = 25000, | |
1106 | }, | |
1107 | { | |
1108 | .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR4 | | |
1109 | MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2 | | |
1110 | MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2, | |
1111 | .speed = 50000, | |
1112 | }, | |
1113 | { | |
1114 | .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4, | |
1115 | .supported = SUPPORTED_56000baseKR4_Full, | |
1116 | .advertised = ADVERTISED_56000baseKR4_Full, | |
1117 | .speed = 56000, | |
1118 | }, | |
1119 | { | |
1120 | .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4 | | |
1121 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 | | |
1122 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 | | |
1123 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4, | |
1124 | .speed = 100000, | |
1125 | }, | |
1126 | }; | |
1127 | ||
1128 | #define MLXSW_SP_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp_port_link_mode) | |
1129 | ||
1130 | static u32 mlxsw_sp_from_ptys_supported_port(u32 ptys_eth_proto) | |
1131 | { | |
1132 | if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR | | |
1133 | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR | | |
1134 | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 | | |
1135 | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 | | |
1136 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 | | |
1137 | MLXSW_REG_PTYS_ETH_SPEED_SGMII)) | |
1138 | return SUPPORTED_FIBRE; | |
1139 | ||
1140 | if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR | | |
1141 | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 | | |
1142 | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 | | |
1143 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 | | |
1144 | MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX)) | |
1145 | return SUPPORTED_Backplane; | |
1146 | return 0; | |
1147 | } | |
1148 | ||
1149 | static u32 mlxsw_sp_from_ptys_supported_link(u32 ptys_eth_proto) | |
1150 | { | |
1151 | u32 modes = 0; | |
1152 | int i; | |
1153 | ||
1154 | for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { | |
1155 | if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) | |
1156 | modes |= mlxsw_sp_port_link_mode[i].supported; | |
1157 | } | |
1158 | return modes; | |
1159 | } | |
1160 | ||
1161 | static u32 mlxsw_sp_from_ptys_advert_link(u32 ptys_eth_proto) | |
1162 | { | |
1163 | u32 modes = 0; | |
1164 | int i; | |
1165 | ||
1166 | for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { | |
1167 | if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) | |
1168 | modes |= mlxsw_sp_port_link_mode[i].advertised; | |
1169 | } | |
1170 | return modes; | |
1171 | } | |
1172 | ||
1173 | static void mlxsw_sp_from_ptys_speed_duplex(bool carrier_ok, u32 ptys_eth_proto, | |
1174 | struct ethtool_cmd *cmd) | |
1175 | { | |
1176 | u32 speed = SPEED_UNKNOWN; | |
1177 | u8 duplex = DUPLEX_UNKNOWN; | |
1178 | int i; | |
1179 | ||
1180 | if (!carrier_ok) | |
1181 | goto out; | |
1182 | ||
1183 | for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { | |
1184 | if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) { | |
1185 | speed = mlxsw_sp_port_link_mode[i].speed; | |
1186 | duplex = DUPLEX_FULL; | |
1187 | break; | |
1188 | } | |
1189 | } | |
1190 | out: | |
1191 | ethtool_cmd_speed_set(cmd, speed); | |
1192 | cmd->duplex = duplex; | |
1193 | } | |
1194 | ||
1195 | static u8 mlxsw_sp_port_connector_port(u32 ptys_eth_proto) | |
1196 | { | |
1197 | if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR | | |
1198 | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 | | |
1199 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 | | |
1200 | MLXSW_REG_PTYS_ETH_SPEED_SGMII)) | |
1201 | return PORT_FIBRE; | |
1202 | ||
1203 | if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR | | |
1204 | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 | | |
1205 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4)) | |
1206 | return PORT_DA; | |
1207 | ||
1208 | if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR | | |
1209 | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 | | |
1210 | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 | | |
1211 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4)) | |
1212 | return PORT_NONE; | |
1213 | ||
1214 | return PORT_OTHER; | |
1215 | } | |
1216 | ||
1217 | static int mlxsw_sp_port_get_settings(struct net_device *dev, | |
1218 | struct ethtool_cmd *cmd) | |
1219 | { | |
1220 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
1221 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
1222 | char ptys_pl[MLXSW_REG_PTYS_LEN]; | |
1223 | u32 eth_proto_cap; | |
1224 | u32 eth_proto_admin; | |
1225 | u32 eth_proto_oper; | |
1226 | int err; | |
1227 | ||
1228 | mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0); | |
1229 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); | |
1230 | if (err) { | |
1231 | netdev_err(dev, "Failed to get proto"); | |
1232 | return err; | |
1233 | } | |
1234 | mlxsw_reg_ptys_unpack(ptys_pl, ð_proto_cap, | |
1235 | ð_proto_admin, ð_proto_oper); | |
1236 | ||
1237 | cmd->supported = mlxsw_sp_from_ptys_supported_port(eth_proto_cap) | | |
1238 | mlxsw_sp_from_ptys_supported_link(eth_proto_cap) | | |
1239 | SUPPORTED_Pause | SUPPORTED_Asym_Pause; | |
1240 | cmd->advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_admin); | |
1241 | mlxsw_sp_from_ptys_speed_duplex(netif_carrier_ok(dev), | |
1242 | eth_proto_oper, cmd); | |
1243 | ||
1244 | eth_proto_oper = eth_proto_oper ? eth_proto_oper : eth_proto_cap; | |
1245 | cmd->port = mlxsw_sp_port_connector_port(eth_proto_oper); | |
1246 | cmd->lp_advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_oper); | |
1247 | ||
1248 | cmd->transceiver = XCVR_INTERNAL; | |
1249 | return 0; | |
1250 | } | |
1251 | ||
1252 | static u32 mlxsw_sp_to_ptys_advert_link(u32 advertising) | |
1253 | { | |
1254 | u32 ptys_proto = 0; | |
1255 | int i; | |
1256 | ||
1257 | for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { | |
1258 | if (advertising & mlxsw_sp_port_link_mode[i].advertised) | |
1259 | ptys_proto |= mlxsw_sp_port_link_mode[i].mask; | |
1260 | } | |
1261 | return ptys_proto; | |
1262 | } | |
1263 | ||
1264 | static u32 mlxsw_sp_to_ptys_speed(u32 speed) | |
1265 | { | |
1266 | u32 ptys_proto = 0; | |
1267 | int i; | |
1268 | ||
1269 | for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { | |
1270 | if (speed == mlxsw_sp_port_link_mode[i].speed) | |
1271 | ptys_proto |= mlxsw_sp_port_link_mode[i].mask; | |
1272 | } | |
1273 | return ptys_proto; | |
1274 | } | |
1275 | ||
1276 | static int mlxsw_sp_port_set_settings(struct net_device *dev, | |
1277 | struct ethtool_cmd *cmd) | |
1278 | { | |
1279 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
1280 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
1281 | char ptys_pl[MLXSW_REG_PTYS_LEN]; | |
1282 | u32 speed; | |
1283 | u32 eth_proto_new; | |
1284 | u32 eth_proto_cap; | |
1285 | u32 eth_proto_admin; | |
1286 | bool is_up; | |
1287 | int err; | |
1288 | ||
1289 | speed = ethtool_cmd_speed(cmd); | |
1290 | ||
1291 | eth_proto_new = cmd->autoneg == AUTONEG_ENABLE ? | |
1292 | mlxsw_sp_to_ptys_advert_link(cmd->advertising) : | |
1293 | mlxsw_sp_to_ptys_speed(speed); | |
1294 | ||
1295 | mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0); | |
1296 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); | |
1297 | if (err) { | |
1298 | netdev_err(dev, "Failed to get proto"); | |
1299 | return err; | |
1300 | } | |
1301 | mlxsw_reg_ptys_unpack(ptys_pl, ð_proto_cap, ð_proto_admin, NULL); | |
1302 | ||
1303 | eth_proto_new = eth_proto_new & eth_proto_cap; | |
1304 | if (!eth_proto_new) { | |
1305 | netdev_err(dev, "Not supported proto admin requested"); | |
1306 | return -EINVAL; | |
1307 | } | |
1308 | if (eth_proto_new == eth_proto_admin) | |
1309 | return 0; | |
1310 | ||
1311 | mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, eth_proto_new); | |
1312 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); | |
1313 | if (err) { | |
1314 | netdev_err(dev, "Failed to set proto admin"); | |
1315 | return err; | |
1316 | } | |
1317 | ||
1318 | err = mlxsw_sp_port_oper_status_get(mlxsw_sp_port, &is_up); | |
1319 | if (err) { | |
1320 | netdev_err(dev, "Failed to get oper status"); | |
1321 | return err; | |
1322 | } | |
1323 | if (!is_up) | |
1324 | return 0; | |
1325 | ||
1326 | err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); | |
1327 | if (err) { | |
1328 | netdev_err(dev, "Failed to set admin status"); | |
1329 | return err; | |
1330 | } | |
1331 | ||
1332 | err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true); | |
1333 | if (err) { | |
1334 | netdev_err(dev, "Failed to set admin status"); | |
1335 | return err; | |
1336 | } | |
1337 | ||
1338 | return 0; | |
1339 | } | |
1340 | ||
1341 | static const struct ethtool_ops mlxsw_sp_port_ethtool_ops = { | |
1342 | .get_drvinfo = mlxsw_sp_port_get_drvinfo, | |
1343 | .get_link = ethtool_op_get_link, | |
1344 | .get_strings = mlxsw_sp_port_get_strings, | |
3a66ee38 | 1345 | .set_phys_id = mlxsw_sp_port_set_phys_id, |
56ade8fe JP |
1346 | .get_ethtool_stats = mlxsw_sp_port_get_stats, |
1347 | .get_sset_count = mlxsw_sp_port_get_sset_count, | |
1348 | .get_settings = mlxsw_sp_port_get_settings, | |
1349 | .set_settings = mlxsw_sp_port_set_settings, | |
1350 | }; | |
1351 | ||
1352 | static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port) | |
1353 | { | |
1354 | struct mlxsw_sp_port *mlxsw_sp_port; | |
1355 | struct net_device *dev; | |
1356 | bool usable; | |
bd40e9d6 | 1357 | size_t bytes; |
56ade8fe JP |
1358 | int err; |
1359 | ||
1360 | dev = alloc_etherdev(sizeof(struct mlxsw_sp_port)); | |
1361 | if (!dev) | |
1362 | return -ENOMEM; | |
1363 | mlxsw_sp_port = netdev_priv(dev); | |
1364 | mlxsw_sp_port->dev = dev; | |
1365 | mlxsw_sp_port->mlxsw_sp = mlxsw_sp; | |
1366 | mlxsw_sp_port->local_port = local_port; | |
bd40e9d6 IS |
1367 | bytes = DIV_ROUND_UP(VLAN_N_VID, BITS_PER_BYTE); |
1368 | mlxsw_sp_port->active_vlans = kzalloc(bytes, GFP_KERNEL); | |
1369 | if (!mlxsw_sp_port->active_vlans) { | |
1370 | err = -ENOMEM; | |
1371 | goto err_port_active_vlans_alloc; | |
1372 | } | |
fc1273af ER |
1373 | mlxsw_sp_port->untagged_vlans = kzalloc(bytes, GFP_KERNEL); |
1374 | if (!mlxsw_sp_port->untagged_vlans) { | |
1375 | err = -ENOMEM; | |
1376 | goto err_port_untagged_vlans_alloc; | |
1377 | } | |
7f71eb46 | 1378 | INIT_LIST_HEAD(&mlxsw_sp_port->vports_list); |
56ade8fe JP |
1379 | |
1380 | mlxsw_sp_port->pcpu_stats = | |
1381 | netdev_alloc_pcpu_stats(struct mlxsw_sp_port_pcpu_stats); | |
1382 | if (!mlxsw_sp_port->pcpu_stats) { | |
1383 | err = -ENOMEM; | |
1384 | goto err_alloc_stats; | |
1385 | } | |
1386 | ||
1387 | dev->netdev_ops = &mlxsw_sp_port_netdev_ops; | |
1388 | dev->ethtool_ops = &mlxsw_sp_port_ethtool_ops; | |
1389 | ||
1390 | err = mlxsw_sp_port_dev_addr_init(mlxsw_sp_port); | |
1391 | if (err) { | |
1392 | dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unable to init port mac address\n", | |
1393 | mlxsw_sp_port->local_port); | |
1394 | goto err_dev_addr_init; | |
1395 | } | |
1396 | ||
1397 | netif_carrier_off(dev); | |
1398 | ||
1399 | dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_LLTX | NETIF_F_SG | | |
1400 | NETIF_F_HW_VLAN_CTAG_FILTER; | |
1401 | ||
1402 | /* Each packet needs to have a Tx header (metadata) on top all other | |
1403 | * headers. | |
1404 | */ | |
1405 | dev->hard_header_len += MLXSW_TXHDR_LEN; | |
1406 | ||
1407 | err = mlxsw_sp_port_module_check(mlxsw_sp_port, &usable); | |
1408 | if (err) { | |
1409 | dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to check module\n", | |
1410 | mlxsw_sp_port->local_port); | |
1411 | goto err_port_module_check; | |
1412 | } | |
1413 | ||
1414 | if (!usable) { | |
1415 | dev_dbg(mlxsw_sp->bus_info->dev, "Port %d: Not usable, skipping initialization\n", | |
1416 | mlxsw_sp_port->local_port); | |
1417 | goto port_not_usable; | |
1418 | } | |
1419 | ||
1420 | err = mlxsw_sp_port_system_port_mapping_set(mlxsw_sp_port); | |
1421 | if (err) { | |
1422 | dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set system port mapping\n", | |
1423 | mlxsw_sp_port->local_port); | |
1424 | goto err_port_system_port_mapping_set; | |
1425 | } | |
1426 | ||
1427 | err = mlxsw_sp_port_swid_set(mlxsw_sp_port, 0); | |
1428 | if (err) { | |
1429 | dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set SWID\n", | |
1430 | mlxsw_sp_port->local_port); | |
1431 | goto err_port_swid_set; | |
1432 | } | |
1433 | ||
1434 | err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, ETH_DATA_LEN); | |
1435 | if (err) { | |
1436 | dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set MTU\n", | |
1437 | mlxsw_sp_port->local_port); | |
1438 | goto err_port_mtu_set; | |
1439 | } | |
1440 | ||
1441 | err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); | |
1442 | if (err) | |
1443 | goto err_port_admin_status_set; | |
1444 | ||
1445 | err = mlxsw_sp_port_buffers_init(mlxsw_sp_port); | |
1446 | if (err) { | |
1447 | dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize buffers\n", | |
1448 | mlxsw_sp_port->local_port); | |
1449 | goto err_port_buffers_init; | |
1450 | } | |
1451 | ||
1452 | mlxsw_sp_port_switchdev_init(mlxsw_sp_port); | |
1453 | err = register_netdev(dev); | |
1454 | if (err) { | |
1455 | dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to register netdev\n", | |
1456 | mlxsw_sp_port->local_port); | |
1457 | goto err_register_netdev; | |
1458 | } | |
1459 | ||
1460 | err = mlxsw_sp_port_vlan_init(mlxsw_sp_port); | |
1461 | if (err) | |
1462 | goto err_port_vlan_init; | |
1463 | ||
1464 | mlxsw_sp->ports[local_port] = mlxsw_sp_port; | |
1465 | return 0; | |
1466 | ||
1467 | err_port_vlan_init: | |
1468 | unregister_netdev(dev); | |
1469 | err_register_netdev: | |
1470 | err_port_buffers_init: | |
1471 | err_port_admin_status_set: | |
1472 | err_port_mtu_set: | |
1473 | err_port_swid_set: | |
1474 | err_port_system_port_mapping_set: | |
1475 | port_not_usable: | |
1476 | err_port_module_check: | |
1477 | err_dev_addr_init: | |
1478 | free_percpu(mlxsw_sp_port->pcpu_stats); | |
1479 | err_alloc_stats: | |
fc1273af ER |
1480 | kfree(mlxsw_sp_port->untagged_vlans); |
1481 | err_port_untagged_vlans_alloc: | |
bd40e9d6 IS |
1482 | kfree(mlxsw_sp_port->active_vlans); |
1483 | err_port_active_vlans_alloc: | |
56ade8fe JP |
1484 | free_netdev(dev); |
1485 | return err; | |
1486 | } | |
1487 | ||
7f71eb46 | 1488 | static void mlxsw_sp_port_vports_fini(struct mlxsw_sp_port *mlxsw_sp_port) |
56ade8fe | 1489 | { |
7f71eb46 IS |
1490 | struct net_device *dev = mlxsw_sp_port->dev; |
1491 | struct mlxsw_sp_port *mlxsw_sp_vport, *tmp; | |
56ade8fe | 1492 | |
7f71eb46 IS |
1493 | list_for_each_entry_safe(mlxsw_sp_vport, tmp, |
1494 | &mlxsw_sp_port->vports_list, vport.list) { | |
1495 | u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport); | |
1496 | ||
1497 | /* vPorts created for VLAN devices should already be gone | |
1498 | * by now, since we unregistered the port netdev. | |
1499 | */ | |
1500 | WARN_ON(is_vlan_dev(mlxsw_sp_vport->dev)); | |
1501 | mlxsw_sp_port_kill_vid(dev, 0, vid); | |
1502 | } | |
56ade8fe JP |
1503 | } |
1504 | ||
1505 | static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port) | |
1506 | { | |
1507 | struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port]; | |
1508 | ||
1509 | if (!mlxsw_sp_port) | |
1510 | return; | |
56ade8fe | 1511 | unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */ |
7f71eb46 | 1512 | mlxsw_sp_port_vports_fini(mlxsw_sp_port); |
56ade8fe JP |
1513 | mlxsw_sp_port_switchdev_fini(mlxsw_sp_port); |
1514 | free_percpu(mlxsw_sp_port->pcpu_stats); | |
fc1273af | 1515 | kfree(mlxsw_sp_port->untagged_vlans); |
bd40e9d6 | 1516 | kfree(mlxsw_sp_port->active_vlans); |
56ade8fe JP |
1517 | free_netdev(mlxsw_sp_port->dev); |
1518 | } | |
1519 | ||
1520 | static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp) | |
1521 | { | |
1522 | int i; | |
1523 | ||
1524 | for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++) | |
1525 | mlxsw_sp_port_remove(mlxsw_sp, i); | |
1526 | kfree(mlxsw_sp->ports); | |
1527 | } | |
1528 | ||
1529 | static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp) | |
1530 | { | |
1531 | size_t alloc_size; | |
1532 | int i; | |
1533 | int err; | |
1534 | ||
1535 | alloc_size = sizeof(struct mlxsw_sp_port *) * MLXSW_PORT_MAX_PORTS; | |
1536 | mlxsw_sp->ports = kzalloc(alloc_size, GFP_KERNEL); | |
1537 | if (!mlxsw_sp->ports) | |
1538 | return -ENOMEM; | |
1539 | ||
1540 | for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++) { | |
1541 | err = mlxsw_sp_port_create(mlxsw_sp, i); | |
1542 | if (err) | |
1543 | goto err_port_create; | |
1544 | } | |
1545 | return 0; | |
1546 | ||
1547 | err_port_create: | |
1548 | for (i--; i >= 1; i--) | |
1549 | mlxsw_sp_port_remove(mlxsw_sp, i); | |
1550 | kfree(mlxsw_sp->ports); | |
1551 | return err; | |
1552 | } | |
1553 | ||
1554 | static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg, | |
1555 | char *pude_pl, void *priv) | |
1556 | { | |
1557 | struct mlxsw_sp *mlxsw_sp = priv; | |
1558 | struct mlxsw_sp_port *mlxsw_sp_port; | |
1559 | enum mlxsw_reg_pude_oper_status status; | |
1560 | u8 local_port; | |
1561 | ||
1562 | local_port = mlxsw_reg_pude_local_port_get(pude_pl); | |
1563 | mlxsw_sp_port = mlxsw_sp->ports[local_port]; | |
1564 | if (!mlxsw_sp_port) { | |
1565 | dev_warn(mlxsw_sp->bus_info->dev, "Port %d: Link event received for non-existent port\n", | |
1566 | local_port); | |
1567 | return; | |
1568 | } | |
1569 | ||
1570 | status = mlxsw_reg_pude_oper_status_get(pude_pl); | |
1571 | if (status == MLXSW_PORT_OPER_STATUS_UP) { | |
1572 | netdev_info(mlxsw_sp_port->dev, "link up\n"); | |
1573 | netif_carrier_on(mlxsw_sp_port->dev); | |
1574 | } else { | |
1575 | netdev_info(mlxsw_sp_port->dev, "link down\n"); | |
1576 | netif_carrier_off(mlxsw_sp_port->dev); | |
1577 | } | |
1578 | } | |
1579 | ||
1580 | static struct mlxsw_event_listener mlxsw_sp_pude_event = { | |
1581 | .func = mlxsw_sp_pude_event_func, | |
1582 | .trap_id = MLXSW_TRAP_ID_PUDE, | |
1583 | }; | |
1584 | ||
1585 | static int mlxsw_sp_event_register(struct mlxsw_sp *mlxsw_sp, | |
1586 | enum mlxsw_event_trap_id trap_id) | |
1587 | { | |
1588 | struct mlxsw_event_listener *el; | |
1589 | char hpkt_pl[MLXSW_REG_HPKT_LEN]; | |
1590 | int err; | |
1591 | ||
1592 | switch (trap_id) { | |
1593 | case MLXSW_TRAP_ID_PUDE: | |
1594 | el = &mlxsw_sp_pude_event; | |
1595 | break; | |
1596 | } | |
1597 | err = mlxsw_core_event_listener_register(mlxsw_sp->core, el, mlxsw_sp); | |
1598 | if (err) | |
1599 | return err; | |
1600 | ||
1601 | mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD, trap_id); | |
1602 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl); | |
1603 | if (err) | |
1604 | goto err_event_trap_set; | |
1605 | ||
1606 | return 0; | |
1607 | ||
1608 | err_event_trap_set: | |
1609 | mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp); | |
1610 | return err; | |
1611 | } | |
1612 | ||
1613 | static void mlxsw_sp_event_unregister(struct mlxsw_sp *mlxsw_sp, | |
1614 | enum mlxsw_event_trap_id trap_id) | |
1615 | { | |
1616 | struct mlxsw_event_listener *el; | |
1617 | ||
1618 | switch (trap_id) { | |
1619 | case MLXSW_TRAP_ID_PUDE: | |
1620 | el = &mlxsw_sp_pude_event; | |
1621 | break; | |
1622 | } | |
1623 | mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp); | |
1624 | } | |
1625 | ||
1626 | static void mlxsw_sp_rx_listener_func(struct sk_buff *skb, u8 local_port, | |
1627 | void *priv) | |
1628 | { | |
1629 | struct mlxsw_sp *mlxsw_sp = priv; | |
1630 | struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port]; | |
1631 | struct mlxsw_sp_port_pcpu_stats *pcpu_stats; | |
1632 | ||
1633 | if (unlikely(!mlxsw_sp_port)) { | |
1634 | dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: skb received for non-existent port\n", | |
1635 | local_port); | |
1636 | return; | |
1637 | } | |
1638 | ||
1639 | skb->dev = mlxsw_sp_port->dev; | |
1640 | ||
1641 | pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats); | |
1642 | u64_stats_update_begin(&pcpu_stats->syncp); | |
1643 | pcpu_stats->rx_packets++; | |
1644 | pcpu_stats->rx_bytes += skb->len; | |
1645 | u64_stats_update_end(&pcpu_stats->syncp); | |
1646 | ||
1647 | skb->protocol = eth_type_trans(skb, skb->dev); | |
1648 | netif_receive_skb(skb); | |
1649 | } | |
1650 | ||
1651 | static const struct mlxsw_rx_listener mlxsw_sp_rx_listener[] = { | |
1652 | { | |
1653 | .func = mlxsw_sp_rx_listener_func, | |
1654 | .local_port = MLXSW_PORT_DONT_CARE, | |
1655 | .trap_id = MLXSW_TRAP_ID_FDB_MC, | |
1656 | }, | |
1657 | /* Traps for specific L2 packet types, not trapped as FDB MC */ | |
1658 | { | |
1659 | .func = mlxsw_sp_rx_listener_func, | |
1660 | .local_port = MLXSW_PORT_DONT_CARE, | |
1661 | .trap_id = MLXSW_TRAP_ID_STP, | |
1662 | }, | |
1663 | { | |
1664 | .func = mlxsw_sp_rx_listener_func, | |
1665 | .local_port = MLXSW_PORT_DONT_CARE, | |
1666 | .trap_id = MLXSW_TRAP_ID_LACP, | |
1667 | }, | |
1668 | { | |
1669 | .func = mlxsw_sp_rx_listener_func, | |
1670 | .local_port = MLXSW_PORT_DONT_CARE, | |
1671 | .trap_id = MLXSW_TRAP_ID_EAPOL, | |
1672 | }, | |
1673 | { | |
1674 | .func = mlxsw_sp_rx_listener_func, | |
1675 | .local_port = MLXSW_PORT_DONT_CARE, | |
1676 | .trap_id = MLXSW_TRAP_ID_LLDP, | |
1677 | }, | |
1678 | { | |
1679 | .func = mlxsw_sp_rx_listener_func, | |
1680 | .local_port = MLXSW_PORT_DONT_CARE, | |
1681 | .trap_id = MLXSW_TRAP_ID_MMRP, | |
1682 | }, | |
1683 | { | |
1684 | .func = mlxsw_sp_rx_listener_func, | |
1685 | .local_port = MLXSW_PORT_DONT_CARE, | |
1686 | .trap_id = MLXSW_TRAP_ID_MVRP, | |
1687 | }, | |
1688 | { | |
1689 | .func = mlxsw_sp_rx_listener_func, | |
1690 | .local_port = MLXSW_PORT_DONT_CARE, | |
1691 | .trap_id = MLXSW_TRAP_ID_RPVST, | |
1692 | }, | |
1693 | { | |
1694 | .func = mlxsw_sp_rx_listener_func, | |
1695 | .local_port = MLXSW_PORT_DONT_CARE, | |
1696 | .trap_id = MLXSW_TRAP_ID_DHCP, | |
1697 | }, | |
1698 | { | |
1699 | .func = mlxsw_sp_rx_listener_func, | |
1700 | .local_port = MLXSW_PORT_DONT_CARE, | |
1701 | .trap_id = MLXSW_TRAP_ID_IGMP_QUERY, | |
1702 | }, | |
1703 | { | |
1704 | .func = mlxsw_sp_rx_listener_func, | |
1705 | .local_port = MLXSW_PORT_DONT_CARE, | |
1706 | .trap_id = MLXSW_TRAP_ID_IGMP_V1_REPORT, | |
1707 | }, | |
1708 | { | |
1709 | .func = mlxsw_sp_rx_listener_func, | |
1710 | .local_port = MLXSW_PORT_DONT_CARE, | |
1711 | .trap_id = MLXSW_TRAP_ID_IGMP_V2_REPORT, | |
1712 | }, | |
1713 | { | |
1714 | .func = mlxsw_sp_rx_listener_func, | |
1715 | .local_port = MLXSW_PORT_DONT_CARE, | |
1716 | .trap_id = MLXSW_TRAP_ID_IGMP_V2_LEAVE, | |
1717 | }, | |
1718 | { | |
1719 | .func = mlxsw_sp_rx_listener_func, | |
1720 | .local_port = MLXSW_PORT_DONT_CARE, | |
1721 | .trap_id = MLXSW_TRAP_ID_IGMP_V3_REPORT, | |
1722 | }, | |
1723 | }; | |
1724 | ||
1725 | static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp) | |
1726 | { | |
1727 | char htgt_pl[MLXSW_REG_HTGT_LEN]; | |
1728 | char hpkt_pl[MLXSW_REG_HPKT_LEN]; | |
1729 | int i; | |
1730 | int err; | |
1731 | ||
1732 | mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_RX); | |
1733 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl); | |
1734 | if (err) | |
1735 | return err; | |
1736 | ||
1737 | mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_CTRL); | |
1738 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl); | |
1739 | if (err) | |
1740 | return err; | |
1741 | ||
1742 | for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) { | |
1743 | err = mlxsw_core_rx_listener_register(mlxsw_sp->core, | |
1744 | &mlxsw_sp_rx_listener[i], | |
1745 | mlxsw_sp); | |
1746 | if (err) | |
1747 | goto err_rx_listener_register; | |
1748 | ||
1749 | mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_TRAP_TO_CPU, | |
1750 | mlxsw_sp_rx_listener[i].trap_id); | |
1751 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl); | |
1752 | if (err) | |
1753 | goto err_rx_trap_set; | |
1754 | } | |
1755 | return 0; | |
1756 | ||
1757 | err_rx_trap_set: | |
1758 | mlxsw_core_rx_listener_unregister(mlxsw_sp->core, | |
1759 | &mlxsw_sp_rx_listener[i], | |
1760 | mlxsw_sp); | |
1761 | err_rx_listener_register: | |
1762 | for (i--; i >= 0; i--) { | |
1763 | mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD, | |
1764 | mlxsw_sp_rx_listener[i].trap_id); | |
1765 | mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl); | |
1766 | ||
1767 | mlxsw_core_rx_listener_unregister(mlxsw_sp->core, | |
1768 | &mlxsw_sp_rx_listener[i], | |
1769 | mlxsw_sp); | |
1770 | } | |
1771 | return err; | |
1772 | } | |
1773 | ||
1774 | static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp) | |
1775 | { | |
1776 | char hpkt_pl[MLXSW_REG_HPKT_LEN]; | |
1777 | int i; | |
1778 | ||
1779 | for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) { | |
1780 | mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD, | |
1781 | mlxsw_sp_rx_listener[i].trap_id); | |
1782 | mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl); | |
1783 | ||
1784 | mlxsw_core_rx_listener_unregister(mlxsw_sp->core, | |
1785 | &mlxsw_sp_rx_listener[i], | |
1786 | mlxsw_sp); | |
1787 | } | |
1788 | } | |
1789 | ||
1790 | static int __mlxsw_sp_flood_init(struct mlxsw_core *mlxsw_core, | |
1791 | enum mlxsw_reg_sfgc_type type, | |
1792 | enum mlxsw_reg_sfgc_bridge_type bridge_type) | |
1793 | { | |
1794 | enum mlxsw_flood_table_type table_type; | |
1795 | enum mlxsw_sp_flood_table flood_table; | |
1796 | char sfgc_pl[MLXSW_REG_SFGC_LEN]; | |
1797 | ||
19ae6124 | 1798 | if (bridge_type == MLXSW_REG_SFGC_BRIDGE_TYPE_VFID) |
56ade8fe | 1799 | table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID; |
19ae6124 | 1800 | else |
56ade8fe | 1801 | table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST; |
19ae6124 IS |
1802 | |
1803 | if (type == MLXSW_REG_SFGC_TYPE_UNKNOWN_UNICAST) | |
1804 | flood_table = MLXSW_SP_FLOOD_TABLE_UC; | |
1805 | else | |
1806 | flood_table = MLXSW_SP_FLOOD_TABLE_BM; | |
56ade8fe JP |
1807 | |
1808 | mlxsw_reg_sfgc_pack(sfgc_pl, type, bridge_type, table_type, | |
1809 | flood_table); | |
1810 | return mlxsw_reg_write(mlxsw_core, MLXSW_REG(sfgc), sfgc_pl); | |
1811 | } | |
1812 | ||
1813 | static int mlxsw_sp_flood_init(struct mlxsw_sp *mlxsw_sp) | |
1814 | { | |
1815 | int type, err; | |
1816 | ||
56ade8fe JP |
1817 | for (type = 0; type < MLXSW_REG_SFGC_TYPE_MAX; type++) { |
1818 | if (type == MLXSW_REG_SFGC_TYPE_RESERVED) | |
1819 | continue; | |
1820 | ||
1821 | err = __mlxsw_sp_flood_init(mlxsw_sp->core, type, | |
1822 | MLXSW_REG_SFGC_BRIDGE_TYPE_VFID); | |
1823 | if (err) | |
1824 | return err; | |
56ade8fe JP |
1825 | |
1826 | err = __mlxsw_sp_flood_init(mlxsw_sp->core, type, | |
1827 | MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID); | |
1828 | if (err) | |
1829 | return err; | |
1830 | } | |
1831 | ||
1832 | return 0; | |
1833 | } | |
1834 | ||
0d65fc13 JP |
1835 | static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp) |
1836 | { | |
1837 | char slcr_pl[MLXSW_REG_SLCR_LEN]; | |
1838 | ||
1839 | mlxsw_reg_slcr_pack(slcr_pl, MLXSW_REG_SLCR_LAG_HASH_SMAC | | |
1840 | MLXSW_REG_SLCR_LAG_HASH_DMAC | | |
1841 | MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE | | |
1842 | MLXSW_REG_SLCR_LAG_HASH_VLANID | | |
1843 | MLXSW_REG_SLCR_LAG_HASH_SIP | | |
1844 | MLXSW_REG_SLCR_LAG_HASH_DIP | | |
1845 | MLXSW_REG_SLCR_LAG_HASH_SPORT | | |
1846 | MLXSW_REG_SLCR_LAG_HASH_DPORT | | |
1847 | MLXSW_REG_SLCR_LAG_HASH_IPPROTO); | |
1848 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcr), slcr_pl); | |
1849 | } | |
1850 | ||
56ade8fe JP |
1851 | static int mlxsw_sp_init(void *priv, struct mlxsw_core *mlxsw_core, |
1852 | const struct mlxsw_bus_info *mlxsw_bus_info) | |
1853 | { | |
1854 | struct mlxsw_sp *mlxsw_sp = priv; | |
1855 | int err; | |
1856 | ||
1857 | mlxsw_sp->core = mlxsw_core; | |
1858 | mlxsw_sp->bus_info = mlxsw_bus_info; | |
7f71eb46 | 1859 | INIT_LIST_HEAD(&mlxsw_sp->port_vfids.list); |
26f0e7fb | 1860 | INIT_LIST_HEAD(&mlxsw_sp->br_vfids.list); |
3a49b4fd | 1861 | INIT_LIST_HEAD(&mlxsw_sp->br_mids.list); |
56ade8fe JP |
1862 | |
1863 | err = mlxsw_sp_base_mac_get(mlxsw_sp); | |
1864 | if (err) { | |
1865 | dev_err(mlxsw_sp->bus_info->dev, "Failed to get base mac\n"); | |
1866 | return err; | |
1867 | } | |
1868 | ||
1869 | err = mlxsw_sp_ports_create(mlxsw_sp); | |
1870 | if (err) { | |
1871 | dev_err(mlxsw_sp->bus_info->dev, "Failed to create ports\n"); | |
7f71eb46 | 1872 | return err; |
56ade8fe JP |
1873 | } |
1874 | ||
1875 | err = mlxsw_sp_event_register(mlxsw_sp, MLXSW_TRAP_ID_PUDE); | |
1876 | if (err) { | |
1877 | dev_err(mlxsw_sp->bus_info->dev, "Failed to register for PUDE events\n"); | |
1878 | goto err_event_register; | |
1879 | } | |
1880 | ||
1881 | err = mlxsw_sp_traps_init(mlxsw_sp); | |
1882 | if (err) { | |
1883 | dev_err(mlxsw_sp->bus_info->dev, "Failed to set traps for RX\n"); | |
1884 | goto err_rx_listener_register; | |
1885 | } | |
1886 | ||
1887 | err = mlxsw_sp_flood_init(mlxsw_sp); | |
1888 | if (err) { | |
1889 | dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize flood tables\n"); | |
1890 | goto err_flood_init; | |
1891 | } | |
1892 | ||
1893 | err = mlxsw_sp_buffers_init(mlxsw_sp); | |
1894 | if (err) { | |
1895 | dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize buffers\n"); | |
1896 | goto err_buffers_init; | |
1897 | } | |
1898 | ||
0d65fc13 JP |
1899 | err = mlxsw_sp_lag_init(mlxsw_sp); |
1900 | if (err) { | |
1901 | dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize LAG\n"); | |
1902 | goto err_lag_init; | |
1903 | } | |
1904 | ||
56ade8fe JP |
1905 | err = mlxsw_sp_switchdev_init(mlxsw_sp); |
1906 | if (err) { | |
1907 | dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize switchdev\n"); | |
1908 | goto err_switchdev_init; | |
1909 | } | |
1910 | ||
1911 | return 0; | |
1912 | ||
1913 | err_switchdev_init: | |
0d65fc13 | 1914 | err_lag_init: |
56ade8fe JP |
1915 | err_buffers_init: |
1916 | err_flood_init: | |
1917 | mlxsw_sp_traps_fini(mlxsw_sp); | |
1918 | err_rx_listener_register: | |
1919 | mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE); | |
1920 | err_event_register: | |
1921 | mlxsw_sp_ports_remove(mlxsw_sp); | |
56ade8fe JP |
1922 | return err; |
1923 | } | |
1924 | ||
1925 | static void mlxsw_sp_fini(void *priv) | |
1926 | { | |
1927 | struct mlxsw_sp *mlxsw_sp = priv; | |
1928 | ||
1929 | mlxsw_sp_switchdev_fini(mlxsw_sp); | |
1930 | mlxsw_sp_traps_fini(mlxsw_sp); | |
1931 | mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE); | |
1932 | mlxsw_sp_ports_remove(mlxsw_sp); | |
56ade8fe JP |
1933 | } |
1934 | ||
1935 | static struct mlxsw_config_profile mlxsw_sp_config_profile = { | |
1936 | .used_max_vepa_channels = 1, | |
1937 | .max_vepa_channels = 0, | |
1938 | .used_max_lag = 1, | |
0d65fc13 | 1939 | .max_lag = MLXSW_SP_LAG_MAX, |
56ade8fe | 1940 | .used_max_port_per_lag = 1, |
0d65fc13 | 1941 | .max_port_per_lag = MLXSW_SP_PORT_PER_LAG_MAX, |
56ade8fe | 1942 | .used_max_mid = 1, |
53ae6283 | 1943 | .max_mid = MLXSW_SP_MID_MAX, |
56ade8fe JP |
1944 | .used_max_pgt = 1, |
1945 | .max_pgt = 0, | |
1946 | .used_max_system_port = 1, | |
1947 | .max_system_port = 64, | |
1948 | .used_max_vlan_groups = 1, | |
1949 | .max_vlan_groups = 127, | |
1950 | .used_max_regions = 1, | |
1951 | .max_regions = 400, | |
1952 | .used_flood_tables = 1, | |
1953 | .used_flood_mode = 1, | |
1954 | .flood_mode = 3, | |
1955 | .max_fid_offset_flood_tables = 2, | |
1956 | .fid_offset_flood_table_size = VLAN_N_VID - 1, | |
19ae6124 IS |
1957 | .max_fid_flood_tables = 2, |
1958 | .fid_flood_table_size = MLXSW_SP_VFID_MAX, | |
56ade8fe JP |
1959 | .used_max_ib_mc = 1, |
1960 | .max_ib_mc = 0, | |
1961 | .used_max_pkey = 1, | |
1962 | .max_pkey = 0, | |
1963 | .swid_config = { | |
1964 | { | |
1965 | .used_type = 1, | |
1966 | .type = MLXSW_PORT_SWID_TYPE_ETH, | |
1967 | } | |
1968 | }, | |
1969 | }; | |
1970 | ||
1971 | static struct mlxsw_driver mlxsw_sp_driver = { | |
1972 | .kind = MLXSW_DEVICE_KIND_SPECTRUM, | |
1973 | .owner = THIS_MODULE, | |
1974 | .priv_size = sizeof(struct mlxsw_sp), | |
1975 | .init = mlxsw_sp_init, | |
1976 | .fini = mlxsw_sp_fini, | |
1977 | .txhdr_construct = mlxsw_sp_txhdr_construct, | |
1978 | .txhdr_len = MLXSW_TXHDR_LEN, | |
1979 | .profile = &mlxsw_sp_config_profile, | |
1980 | }; | |
1981 | ||
039c49a6 IS |
1982 | static int |
1983 | mlxsw_sp_port_fdb_flush_by_port(const struct mlxsw_sp_port *mlxsw_sp_port) | |
1984 | { | |
1985 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
1986 | char sfdf_pl[MLXSW_REG_SFDF_LEN]; | |
1987 | ||
1988 | mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_PORT); | |
1989 | mlxsw_reg_sfdf_system_port_set(sfdf_pl, mlxsw_sp_port->local_port); | |
1990 | ||
1991 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl); | |
1992 | } | |
1993 | ||
1994 | static int | |
1995 | mlxsw_sp_port_fdb_flush_by_port_fid(const struct mlxsw_sp_port *mlxsw_sp_port, | |
1996 | u16 fid) | |
1997 | { | |
1998 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
1999 | char sfdf_pl[MLXSW_REG_SFDF_LEN]; | |
2000 | ||
2001 | mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_PORT_AND_FID); | |
2002 | mlxsw_reg_sfdf_fid_set(sfdf_pl, fid); | |
2003 | mlxsw_reg_sfdf_port_fid_system_port_set(sfdf_pl, | |
2004 | mlxsw_sp_port->local_port); | |
2005 | ||
2006 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl); | |
2007 | } | |
2008 | ||
2009 | static int | |
2010 | mlxsw_sp_port_fdb_flush_by_lag_id(const struct mlxsw_sp_port *mlxsw_sp_port) | |
2011 | { | |
2012 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
2013 | char sfdf_pl[MLXSW_REG_SFDF_LEN]; | |
2014 | ||
2015 | mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_LAG); | |
2016 | mlxsw_reg_sfdf_lag_id_set(sfdf_pl, mlxsw_sp_port->lag_id); | |
2017 | ||
2018 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl); | |
2019 | } | |
2020 | ||
2021 | static int | |
2022 | mlxsw_sp_port_fdb_flush_by_lag_id_fid(const struct mlxsw_sp_port *mlxsw_sp_port, | |
2023 | u16 fid) | |
2024 | { | |
2025 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
2026 | char sfdf_pl[MLXSW_REG_SFDF_LEN]; | |
2027 | ||
2028 | mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_LAG_AND_FID); | |
2029 | mlxsw_reg_sfdf_fid_set(sfdf_pl, fid); | |
2030 | mlxsw_reg_sfdf_lag_fid_lag_id_set(sfdf_pl, mlxsw_sp_port->lag_id); | |
2031 | ||
2032 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl); | |
2033 | } | |
2034 | ||
2035 | static int | |
2036 | __mlxsw_sp_port_fdb_flush(const struct mlxsw_sp_port *mlxsw_sp_port) | |
2037 | { | |
2038 | int err, last_err = 0; | |
2039 | u16 vid; | |
2040 | ||
2041 | for (vid = 1; vid < VLAN_N_VID - 1; vid++) { | |
2042 | err = mlxsw_sp_port_fdb_flush_by_port_fid(mlxsw_sp_port, vid); | |
2043 | if (err) | |
2044 | last_err = err; | |
2045 | } | |
2046 | ||
2047 | return last_err; | |
2048 | } | |
2049 | ||
2050 | static int | |
2051 | __mlxsw_sp_port_fdb_flush_lagged(const struct mlxsw_sp_port *mlxsw_sp_port) | |
2052 | { | |
2053 | int err, last_err = 0; | |
2054 | u16 vid; | |
2055 | ||
2056 | for (vid = 1; vid < VLAN_N_VID - 1; vid++) { | |
2057 | err = mlxsw_sp_port_fdb_flush_by_lag_id_fid(mlxsw_sp_port, vid); | |
2058 | if (err) | |
2059 | last_err = err; | |
2060 | } | |
2061 | ||
2062 | return last_err; | |
2063 | } | |
2064 | ||
2065 | static int mlxsw_sp_port_fdb_flush(struct mlxsw_sp_port *mlxsw_sp_port) | |
2066 | { | |
2067 | if (!list_empty(&mlxsw_sp_port->vports_list)) | |
2068 | if (mlxsw_sp_port->lagged) | |
2069 | return __mlxsw_sp_port_fdb_flush_lagged(mlxsw_sp_port); | |
2070 | else | |
2071 | return __mlxsw_sp_port_fdb_flush(mlxsw_sp_port); | |
2072 | else | |
2073 | if (mlxsw_sp_port->lagged) | |
2074 | return mlxsw_sp_port_fdb_flush_by_lag_id(mlxsw_sp_port); | |
2075 | else | |
2076 | return mlxsw_sp_port_fdb_flush_by_port(mlxsw_sp_port); | |
2077 | } | |
2078 | ||
2079 | static int mlxsw_sp_vport_fdb_flush(struct mlxsw_sp_port *mlxsw_sp_vport) | |
2080 | { | |
2081 | u16 vfid = mlxsw_sp_vport_vfid_get(mlxsw_sp_vport); | |
2082 | u16 fid = mlxsw_sp_vfid_to_fid(vfid); | |
2083 | ||
2084 | if (mlxsw_sp_vport->lagged) | |
2085 | return mlxsw_sp_port_fdb_flush_by_lag_id_fid(mlxsw_sp_vport, | |
2086 | fid); | |
2087 | else | |
2088 | return mlxsw_sp_port_fdb_flush_by_port_fid(mlxsw_sp_vport, fid); | |
2089 | } | |
2090 | ||
56ade8fe JP |
2091 | static bool mlxsw_sp_port_dev_check(const struct net_device *dev) |
2092 | { | |
2093 | return dev->netdev_ops == &mlxsw_sp_port_netdev_ops; | |
2094 | } | |
2095 | ||
2096 | static int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port) | |
2097 | { | |
2098 | struct net_device *dev = mlxsw_sp_port->dev; | |
2099 | int err; | |
2100 | ||
2101 | /* When port is not bridged untagged packets are tagged with | |
2102 | * PVID=VID=1, thereby creating an implicit VLAN interface in | |
2103 | * the device. Remove it and let bridge code take care of its | |
2104 | * own VLANs. | |
2105 | */ | |
2106 | err = mlxsw_sp_port_kill_vid(dev, 0, 1); | |
6c72a3d0 IS |
2107 | if (err) |
2108 | return err; | |
56ade8fe | 2109 | |
6c72a3d0 IS |
2110 | mlxsw_sp_port->learning = 1; |
2111 | mlxsw_sp_port->learning_sync = 1; | |
2112 | mlxsw_sp_port->uc_flood = 1; | |
2113 | mlxsw_sp_port->bridged = 1; | |
2114 | ||
2115 | return 0; | |
56ade8fe JP |
2116 | } |
2117 | ||
039c49a6 IS |
2118 | static int mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port, |
2119 | bool flush_fdb) | |
56ade8fe JP |
2120 | { |
2121 | struct net_device *dev = mlxsw_sp_port->dev; | |
5a8f4525 | 2122 | |
039c49a6 IS |
2123 | if (flush_fdb && mlxsw_sp_port_fdb_flush(mlxsw_sp_port)) |
2124 | netdev_err(mlxsw_sp_port->dev, "Failed to flush FDB\n"); | |
2125 | ||
6c72a3d0 IS |
2126 | mlxsw_sp_port->learning = 0; |
2127 | mlxsw_sp_port->learning_sync = 0; | |
2128 | mlxsw_sp_port->uc_flood = 0; | |
5a8f4525 | 2129 | mlxsw_sp_port->bridged = 0; |
56ade8fe JP |
2130 | |
2131 | /* Add implicit VLAN interface in the device, so that untagged | |
2132 | * packets will be classified to the default vFID. | |
2133 | */ | |
5a8f4525 | 2134 | return mlxsw_sp_port_add_vid(dev, 0, 1); |
56ade8fe JP |
2135 | } |
2136 | ||
2137 | static bool mlxsw_sp_master_bridge_check(struct mlxsw_sp *mlxsw_sp, | |
2138 | struct net_device *br_dev) | |
2139 | { | |
2140 | return !mlxsw_sp->master_bridge.dev || | |
2141 | mlxsw_sp->master_bridge.dev == br_dev; | |
2142 | } | |
2143 | ||
2144 | static void mlxsw_sp_master_bridge_inc(struct mlxsw_sp *mlxsw_sp, | |
2145 | struct net_device *br_dev) | |
2146 | { | |
2147 | mlxsw_sp->master_bridge.dev = br_dev; | |
2148 | mlxsw_sp->master_bridge.ref_count++; | |
2149 | } | |
2150 | ||
2151 | static void mlxsw_sp_master_bridge_dec(struct mlxsw_sp *mlxsw_sp, | |
2152 | struct net_device *br_dev) | |
2153 | { | |
2154 | if (--mlxsw_sp->master_bridge.ref_count == 0) | |
2155 | mlxsw_sp->master_bridge.dev = NULL; | |
2156 | } | |
2157 | ||
0d65fc13 JP |
2158 | static int mlxsw_sp_lag_create(struct mlxsw_sp *mlxsw_sp, u16 lag_id) |
2159 | { | |
2160 | char sldr_pl[MLXSW_REG_SLDR_LEN]; | |
2161 | ||
2162 | mlxsw_reg_sldr_lag_create_pack(sldr_pl, lag_id); | |
2163 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); | |
2164 | } | |
2165 | ||
2166 | static int mlxsw_sp_lag_destroy(struct mlxsw_sp *mlxsw_sp, u16 lag_id) | |
2167 | { | |
2168 | char sldr_pl[MLXSW_REG_SLDR_LEN]; | |
2169 | ||
2170 | mlxsw_reg_sldr_lag_destroy_pack(sldr_pl, lag_id); | |
2171 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); | |
2172 | } | |
2173 | ||
2174 | static int mlxsw_sp_lag_col_port_add(struct mlxsw_sp_port *mlxsw_sp_port, | |
2175 | u16 lag_id, u8 port_index) | |
2176 | { | |
2177 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
2178 | char slcor_pl[MLXSW_REG_SLCOR_LEN]; | |
2179 | ||
2180 | mlxsw_reg_slcor_port_add_pack(slcor_pl, mlxsw_sp_port->local_port, | |
2181 | lag_id, port_index); | |
2182 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); | |
2183 | } | |
2184 | ||
2185 | static int mlxsw_sp_lag_col_port_remove(struct mlxsw_sp_port *mlxsw_sp_port, | |
2186 | u16 lag_id) | |
2187 | { | |
2188 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
2189 | char slcor_pl[MLXSW_REG_SLCOR_LEN]; | |
2190 | ||
2191 | mlxsw_reg_slcor_port_remove_pack(slcor_pl, mlxsw_sp_port->local_port, | |
2192 | lag_id); | |
2193 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); | |
2194 | } | |
2195 | ||
2196 | static int mlxsw_sp_lag_col_port_enable(struct mlxsw_sp_port *mlxsw_sp_port, | |
2197 | u16 lag_id) | |
2198 | { | |
2199 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
2200 | char slcor_pl[MLXSW_REG_SLCOR_LEN]; | |
2201 | ||
2202 | mlxsw_reg_slcor_col_enable_pack(slcor_pl, mlxsw_sp_port->local_port, | |
2203 | lag_id); | |
2204 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); | |
2205 | } | |
2206 | ||
2207 | static int mlxsw_sp_lag_col_port_disable(struct mlxsw_sp_port *mlxsw_sp_port, | |
2208 | u16 lag_id) | |
2209 | { | |
2210 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
2211 | char slcor_pl[MLXSW_REG_SLCOR_LEN]; | |
2212 | ||
2213 | mlxsw_reg_slcor_col_disable_pack(slcor_pl, mlxsw_sp_port->local_port, | |
2214 | lag_id); | |
2215 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); | |
2216 | } | |
2217 | ||
2218 | static int mlxsw_sp_lag_index_get(struct mlxsw_sp *mlxsw_sp, | |
2219 | struct net_device *lag_dev, | |
2220 | u16 *p_lag_id) | |
2221 | { | |
2222 | struct mlxsw_sp_upper *lag; | |
2223 | int free_lag_id = -1; | |
2224 | int i; | |
2225 | ||
2226 | for (i = 0; i < MLXSW_SP_LAG_MAX; i++) { | |
2227 | lag = mlxsw_sp_lag_get(mlxsw_sp, i); | |
2228 | if (lag->ref_count) { | |
2229 | if (lag->dev == lag_dev) { | |
2230 | *p_lag_id = i; | |
2231 | return 0; | |
2232 | } | |
2233 | } else if (free_lag_id < 0) { | |
2234 | free_lag_id = i; | |
2235 | } | |
2236 | } | |
2237 | if (free_lag_id < 0) | |
2238 | return -EBUSY; | |
2239 | *p_lag_id = free_lag_id; | |
2240 | return 0; | |
2241 | } | |
2242 | ||
2243 | static bool | |
2244 | mlxsw_sp_master_lag_check(struct mlxsw_sp *mlxsw_sp, | |
2245 | struct net_device *lag_dev, | |
2246 | struct netdev_lag_upper_info *lag_upper_info) | |
2247 | { | |
2248 | u16 lag_id; | |
2249 | ||
2250 | if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0) | |
2251 | return false; | |
2252 | if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) | |
2253 | return false; | |
2254 | return true; | |
2255 | } | |
2256 | ||
2257 | static int mlxsw_sp_port_lag_index_get(struct mlxsw_sp *mlxsw_sp, | |
2258 | u16 lag_id, u8 *p_port_index) | |
2259 | { | |
2260 | int i; | |
2261 | ||
2262 | for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) { | |
2263 | if (!mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i)) { | |
2264 | *p_port_index = i; | |
2265 | return 0; | |
2266 | } | |
2267 | } | |
2268 | return -EBUSY; | |
2269 | } | |
2270 | ||
2271 | static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port, | |
2272 | struct net_device *lag_dev) | |
2273 | { | |
2274 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
2275 | struct mlxsw_sp_upper *lag; | |
2276 | u16 lag_id; | |
2277 | u8 port_index; | |
2278 | int err; | |
2279 | ||
2280 | err = mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id); | |
2281 | if (err) | |
2282 | return err; | |
2283 | lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id); | |
2284 | if (!lag->ref_count) { | |
2285 | err = mlxsw_sp_lag_create(mlxsw_sp, lag_id); | |
2286 | if (err) | |
2287 | return err; | |
2288 | lag->dev = lag_dev; | |
2289 | } | |
2290 | ||
2291 | err = mlxsw_sp_port_lag_index_get(mlxsw_sp, lag_id, &port_index); | |
2292 | if (err) | |
2293 | return err; | |
2294 | err = mlxsw_sp_lag_col_port_add(mlxsw_sp_port, lag_id, port_index); | |
2295 | if (err) | |
2296 | goto err_col_port_add; | |
2297 | err = mlxsw_sp_lag_col_port_enable(mlxsw_sp_port, lag_id); | |
2298 | if (err) | |
2299 | goto err_col_port_enable; | |
2300 | ||
2301 | mlxsw_core_lag_mapping_set(mlxsw_sp->core, lag_id, port_index, | |
2302 | mlxsw_sp_port->local_port); | |
2303 | mlxsw_sp_port->lag_id = lag_id; | |
2304 | mlxsw_sp_port->lagged = 1; | |
2305 | lag->ref_count++; | |
2306 | return 0; | |
2307 | ||
2308 | err_col_port_add: | |
2309 | if (!lag->ref_count) | |
2310 | mlxsw_sp_lag_destroy(mlxsw_sp, lag_id); | |
2311 | err_col_port_enable: | |
2312 | mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id); | |
2313 | return err; | |
2314 | } | |
2315 | ||
4dc236c3 | 2316 | static int mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_vport, |
039c49a6 IS |
2317 | struct net_device *br_dev, |
2318 | bool flush_fdb); | |
4dc236c3 | 2319 | |
0d65fc13 JP |
2320 | static int mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port, |
2321 | struct net_device *lag_dev) | |
2322 | { | |
2323 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
4dc236c3 | 2324 | struct mlxsw_sp_port *mlxsw_sp_vport; |
0d65fc13 JP |
2325 | struct mlxsw_sp_upper *lag; |
2326 | u16 lag_id = mlxsw_sp_port->lag_id; | |
2327 | int err; | |
2328 | ||
2329 | if (!mlxsw_sp_port->lagged) | |
2330 | return 0; | |
2331 | lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id); | |
2332 | WARN_ON(lag->ref_count == 0); | |
2333 | ||
2334 | err = mlxsw_sp_lag_col_port_disable(mlxsw_sp_port, lag_id); | |
2335 | if (err) | |
2336 | return err; | |
82a06429 | 2337 | err = mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id); |
0d65fc13 JP |
2338 | if (err) |
2339 | return err; | |
2340 | ||
4dc236c3 IS |
2341 | /* In case we leave a LAG device that has bridges built on top, |
2342 | * then their teardown sequence is never issued and we need to | |
2343 | * invoke the necessary cleanup routines ourselves. | |
2344 | */ | |
2345 | list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list, | |
2346 | vport.list) { | |
2347 | struct net_device *br_dev; | |
2348 | ||
2349 | if (!mlxsw_sp_vport->bridged) | |
2350 | continue; | |
2351 | ||
2352 | br_dev = mlxsw_sp_vport_br_get(mlxsw_sp_vport); | |
039c49a6 | 2353 | mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport, br_dev, false); |
4dc236c3 IS |
2354 | } |
2355 | ||
2356 | if (mlxsw_sp_port->bridged) { | |
2357 | mlxsw_sp_port_active_vlans_del(mlxsw_sp_port); | |
039c49a6 | 2358 | mlxsw_sp_port_bridge_leave(mlxsw_sp_port, false); |
4dc236c3 IS |
2359 | |
2360 | if (lag->ref_count == 1) | |
2361 | mlxsw_sp_master_bridge_dec(mlxsw_sp, NULL); | |
2362 | } | |
2363 | ||
0d65fc13 | 2364 | if (lag->ref_count == 1) { |
039c49a6 IS |
2365 | if (mlxsw_sp_port_fdb_flush_by_lag_id(mlxsw_sp_port)) |
2366 | netdev_err(mlxsw_sp_port->dev, "Failed to flush FDB\n"); | |
0d65fc13 JP |
2367 | err = mlxsw_sp_lag_destroy(mlxsw_sp, lag_id); |
2368 | if (err) | |
2369 | return err; | |
2370 | } | |
2371 | ||
2372 | mlxsw_core_lag_mapping_clear(mlxsw_sp->core, lag_id, | |
2373 | mlxsw_sp_port->local_port); | |
2374 | mlxsw_sp_port->lagged = 0; | |
2375 | lag->ref_count--; | |
2376 | return 0; | |
2377 | } | |
2378 | ||
74581206 JP |
2379 | static int mlxsw_sp_lag_dist_port_add(struct mlxsw_sp_port *mlxsw_sp_port, |
2380 | u16 lag_id) | |
2381 | { | |
2382 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
2383 | char sldr_pl[MLXSW_REG_SLDR_LEN]; | |
2384 | ||
2385 | mlxsw_reg_sldr_lag_add_port_pack(sldr_pl, lag_id, | |
2386 | mlxsw_sp_port->local_port); | |
2387 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); | |
2388 | } | |
2389 | ||
2390 | static int mlxsw_sp_lag_dist_port_remove(struct mlxsw_sp_port *mlxsw_sp_port, | |
2391 | u16 lag_id) | |
2392 | { | |
2393 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
2394 | char sldr_pl[MLXSW_REG_SLDR_LEN]; | |
2395 | ||
2396 | mlxsw_reg_sldr_lag_remove_port_pack(sldr_pl, lag_id, | |
2397 | mlxsw_sp_port->local_port); | |
2398 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); | |
2399 | } | |
2400 | ||
2401 | static int mlxsw_sp_port_lag_tx_en_set(struct mlxsw_sp_port *mlxsw_sp_port, | |
2402 | bool lag_tx_enabled) | |
2403 | { | |
2404 | if (lag_tx_enabled) | |
2405 | return mlxsw_sp_lag_dist_port_add(mlxsw_sp_port, | |
2406 | mlxsw_sp_port->lag_id); | |
2407 | else | |
2408 | return mlxsw_sp_lag_dist_port_remove(mlxsw_sp_port, | |
2409 | mlxsw_sp_port->lag_id); | |
2410 | } | |
2411 | ||
2412 | static int mlxsw_sp_port_lag_changed(struct mlxsw_sp_port *mlxsw_sp_port, | |
2413 | struct netdev_lag_lower_state_info *info) | |
2414 | { | |
2415 | return mlxsw_sp_port_lag_tx_en_set(mlxsw_sp_port, info->tx_enabled); | |
2416 | } | |
2417 | ||
9589a7b5 IS |
2418 | static int mlxsw_sp_port_vlan_link(struct mlxsw_sp_port *mlxsw_sp_port, |
2419 | struct net_device *vlan_dev) | |
2420 | { | |
2421 | struct mlxsw_sp_port *mlxsw_sp_vport; | |
2422 | u16 vid = vlan_dev_vlan_id(vlan_dev); | |
2423 | ||
2424 | mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid); | |
2425 | if (!mlxsw_sp_vport) { | |
2426 | WARN_ON(!mlxsw_sp_vport); | |
2427 | return -EINVAL; | |
2428 | } | |
2429 | ||
2430 | mlxsw_sp_vport->dev = vlan_dev; | |
2431 | ||
2432 | return 0; | |
2433 | } | |
2434 | ||
2435 | static int mlxsw_sp_port_vlan_unlink(struct mlxsw_sp_port *mlxsw_sp_port, | |
2436 | struct net_device *vlan_dev) | |
2437 | { | |
2438 | struct mlxsw_sp_port *mlxsw_sp_vport; | |
2439 | u16 vid = vlan_dev_vlan_id(vlan_dev); | |
2440 | ||
2441 | mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid); | |
2442 | if (!mlxsw_sp_vport) { | |
2443 | WARN_ON(!mlxsw_sp_vport); | |
2444 | return -EINVAL; | |
2445 | } | |
2446 | ||
26f0e7fb IS |
2447 | /* When removing a VLAN device while still bridged we should first |
2448 | * remove it from the bridge, as we receive the bridge's notification | |
2449 | * when the vPort is already gone. | |
2450 | */ | |
2451 | if (mlxsw_sp_vport->bridged) { | |
2452 | struct net_device *br_dev; | |
2453 | ||
2454 | br_dev = mlxsw_sp_vport_br_get(mlxsw_sp_vport); | |
039c49a6 | 2455 | mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport, br_dev, true); |
26f0e7fb IS |
2456 | } |
2457 | ||
9589a7b5 IS |
2458 | mlxsw_sp_vport->dev = mlxsw_sp_port->dev; |
2459 | ||
2460 | return 0; | |
2461 | } | |
2462 | ||
74581206 JP |
2463 | static int mlxsw_sp_netdevice_port_upper_event(struct net_device *dev, |
2464 | unsigned long event, void *ptr) | |
56ade8fe | 2465 | { |
56ade8fe JP |
2466 | struct netdev_notifier_changeupper_info *info; |
2467 | struct mlxsw_sp_port *mlxsw_sp_port; | |
2468 | struct net_device *upper_dev; | |
2469 | struct mlxsw_sp *mlxsw_sp; | |
2470 | int err; | |
2471 | ||
56ade8fe JP |
2472 | mlxsw_sp_port = netdev_priv(dev); |
2473 | mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
2474 | info = ptr; | |
2475 | ||
2476 | switch (event) { | |
2477 | case NETDEV_PRECHANGEUPPER: | |
2478 | upper_dev = info->upper_dev; | |
0d65fc13 JP |
2479 | if (!info->master || !info->linking) |
2480 | break; | |
56ade8fe | 2481 | /* HW limitation forbids to put ports to multiple bridges. */ |
0d65fc13 | 2482 | if (netif_is_bridge_master(upper_dev) && |
56ade8fe JP |
2483 | !mlxsw_sp_master_bridge_check(mlxsw_sp, upper_dev)) |
2484 | return NOTIFY_BAD; | |
0d65fc13 JP |
2485 | if (netif_is_lag_master(upper_dev) && |
2486 | !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev, | |
2487 | info->upper_info)) | |
2488 | return NOTIFY_BAD; | |
56ade8fe JP |
2489 | break; |
2490 | case NETDEV_CHANGEUPPER: | |
2491 | upper_dev = info->upper_dev; | |
9589a7b5 IS |
2492 | if (is_vlan_dev(upper_dev)) { |
2493 | if (info->linking) { | |
2494 | err = mlxsw_sp_port_vlan_link(mlxsw_sp_port, | |
2495 | upper_dev); | |
2496 | if (err) { | |
2497 | netdev_err(dev, "Failed to link VLAN device\n"); | |
2498 | return NOTIFY_BAD; | |
2499 | } | |
2500 | } else { | |
2501 | err = mlxsw_sp_port_vlan_unlink(mlxsw_sp_port, | |
2502 | upper_dev); | |
2503 | if (err) { | |
2504 | netdev_err(dev, "Failed to unlink VLAN device\n"); | |
2505 | return NOTIFY_BAD; | |
2506 | } | |
2507 | } | |
2508 | } else if (netif_is_bridge_master(upper_dev)) { | |
56ade8fe JP |
2509 | if (info->linking) { |
2510 | err = mlxsw_sp_port_bridge_join(mlxsw_sp_port); | |
78124078 | 2511 | if (err) { |
56ade8fe | 2512 | netdev_err(dev, "Failed to join bridge\n"); |
78124078 IS |
2513 | return NOTIFY_BAD; |
2514 | } | |
56ade8fe | 2515 | mlxsw_sp_master_bridge_inc(mlxsw_sp, upper_dev); |
56ade8fe | 2516 | } else { |
039c49a6 IS |
2517 | err = mlxsw_sp_port_bridge_leave(mlxsw_sp_port, |
2518 | true); | |
56ade8fe | 2519 | mlxsw_sp_master_bridge_dec(mlxsw_sp, upper_dev); |
78124078 IS |
2520 | if (err) { |
2521 | netdev_err(dev, "Failed to leave bridge\n"); | |
2522 | return NOTIFY_BAD; | |
2523 | } | |
56ade8fe | 2524 | } |
0d65fc13 JP |
2525 | } else if (netif_is_lag_master(upper_dev)) { |
2526 | if (info->linking) { | |
2527 | err = mlxsw_sp_port_lag_join(mlxsw_sp_port, | |
2528 | upper_dev); | |
2529 | if (err) { | |
2530 | netdev_err(dev, "Failed to join link aggregation\n"); | |
2531 | return NOTIFY_BAD; | |
2532 | } | |
2533 | } else { | |
2534 | err = mlxsw_sp_port_lag_leave(mlxsw_sp_port, | |
2535 | upper_dev); | |
2536 | if (err) { | |
2537 | netdev_err(dev, "Failed to leave link aggregation\n"); | |
2538 | return NOTIFY_BAD; | |
2539 | } | |
2540 | } | |
56ade8fe JP |
2541 | } |
2542 | break; | |
2543 | } | |
2544 | ||
2545 | return NOTIFY_DONE; | |
2546 | } | |
2547 | ||
74581206 JP |
2548 | static int mlxsw_sp_netdevice_port_lower_event(struct net_device *dev, |
2549 | unsigned long event, void *ptr) | |
2550 | { | |
2551 | struct netdev_notifier_changelowerstate_info *info; | |
2552 | struct mlxsw_sp_port *mlxsw_sp_port; | |
2553 | int err; | |
2554 | ||
2555 | mlxsw_sp_port = netdev_priv(dev); | |
2556 | info = ptr; | |
2557 | ||
2558 | switch (event) { | |
2559 | case NETDEV_CHANGELOWERSTATE: | |
2560 | if (netif_is_lag_port(dev) && mlxsw_sp_port->lagged) { | |
2561 | err = mlxsw_sp_port_lag_changed(mlxsw_sp_port, | |
2562 | info->lower_state_info); | |
2563 | if (err) | |
2564 | netdev_err(dev, "Failed to reflect link aggregation lower state change\n"); | |
2565 | } | |
2566 | break; | |
2567 | } | |
2568 | ||
2569 | return NOTIFY_DONE; | |
2570 | } | |
2571 | ||
2572 | static int mlxsw_sp_netdevice_port_event(struct net_device *dev, | |
2573 | unsigned long event, void *ptr) | |
2574 | { | |
2575 | switch (event) { | |
2576 | case NETDEV_PRECHANGEUPPER: | |
2577 | case NETDEV_CHANGEUPPER: | |
2578 | return mlxsw_sp_netdevice_port_upper_event(dev, event, ptr); | |
2579 | case NETDEV_CHANGELOWERSTATE: | |
2580 | return mlxsw_sp_netdevice_port_lower_event(dev, event, ptr); | |
2581 | } | |
2582 | ||
2583 | return NOTIFY_DONE; | |
2584 | } | |
2585 | ||
0d65fc13 JP |
2586 | static int mlxsw_sp_netdevice_lag_event(struct net_device *lag_dev, |
2587 | unsigned long event, void *ptr) | |
2588 | { | |
2589 | struct net_device *dev; | |
2590 | struct list_head *iter; | |
2591 | int ret; | |
2592 | ||
2593 | netdev_for_each_lower_dev(lag_dev, dev, iter) { | |
2594 | if (mlxsw_sp_port_dev_check(dev)) { | |
2595 | ret = mlxsw_sp_netdevice_port_event(dev, event, ptr); | |
2596 | if (ret == NOTIFY_BAD) | |
2597 | return ret; | |
2598 | } | |
2599 | } | |
2600 | ||
2601 | return NOTIFY_DONE; | |
2602 | } | |
2603 | ||
26f0e7fb IS |
2604 | static struct mlxsw_sp_vfid * |
2605 | mlxsw_sp_br_vfid_find(const struct mlxsw_sp *mlxsw_sp, | |
2606 | const struct net_device *br_dev) | |
2607 | { | |
2608 | struct mlxsw_sp_vfid *vfid; | |
2609 | ||
2610 | list_for_each_entry(vfid, &mlxsw_sp->br_vfids.list, list) { | |
2611 | if (vfid->br_dev == br_dev) | |
2612 | return vfid; | |
2613 | } | |
2614 | ||
2615 | return NULL; | |
2616 | } | |
2617 | ||
2618 | static u16 mlxsw_sp_vfid_to_br_vfid(u16 vfid) | |
2619 | { | |
2620 | return vfid - MLXSW_SP_VFID_PORT_MAX; | |
2621 | } | |
2622 | ||
2623 | static u16 mlxsw_sp_br_vfid_to_vfid(u16 br_vfid) | |
2624 | { | |
2625 | return MLXSW_SP_VFID_PORT_MAX + br_vfid; | |
2626 | } | |
2627 | ||
2628 | static u16 mlxsw_sp_avail_br_vfid_get(const struct mlxsw_sp *mlxsw_sp) | |
2629 | { | |
2630 | return find_first_zero_bit(mlxsw_sp->br_vfids.mapped, | |
2631 | MLXSW_SP_VFID_BR_MAX); | |
2632 | } | |
2633 | ||
2634 | static struct mlxsw_sp_vfid *mlxsw_sp_br_vfid_create(struct mlxsw_sp *mlxsw_sp, | |
2635 | struct net_device *br_dev) | |
2636 | { | |
2637 | struct device *dev = mlxsw_sp->bus_info->dev; | |
2638 | struct mlxsw_sp_vfid *vfid; | |
2639 | u16 n_vfid; | |
2640 | int err; | |
2641 | ||
2642 | n_vfid = mlxsw_sp_br_vfid_to_vfid(mlxsw_sp_avail_br_vfid_get(mlxsw_sp)); | |
2643 | if (n_vfid == MLXSW_SP_VFID_MAX) { | |
2644 | dev_err(dev, "No available vFIDs\n"); | |
2645 | return ERR_PTR(-ERANGE); | |
2646 | } | |
2647 | ||
2648 | err = __mlxsw_sp_vfid_create(mlxsw_sp, n_vfid); | |
2649 | if (err) { | |
2650 | dev_err(dev, "Failed to create vFID=%d\n", n_vfid); | |
2651 | return ERR_PTR(err); | |
2652 | } | |
2653 | ||
2654 | vfid = kzalloc(sizeof(*vfid), GFP_KERNEL); | |
2655 | if (!vfid) | |
2656 | goto err_allocate_vfid; | |
2657 | ||
2658 | vfid->vfid = n_vfid; | |
2659 | vfid->br_dev = br_dev; | |
2660 | ||
2661 | list_add(&vfid->list, &mlxsw_sp->br_vfids.list); | |
2662 | set_bit(mlxsw_sp_vfid_to_br_vfid(n_vfid), mlxsw_sp->br_vfids.mapped); | |
2663 | ||
2664 | return vfid; | |
2665 | ||
2666 | err_allocate_vfid: | |
2667 | __mlxsw_sp_vfid_destroy(mlxsw_sp, n_vfid); | |
2668 | return ERR_PTR(-ENOMEM); | |
2669 | } | |
2670 | ||
2671 | static void mlxsw_sp_br_vfid_destroy(struct mlxsw_sp *mlxsw_sp, | |
2672 | struct mlxsw_sp_vfid *vfid) | |
2673 | { | |
2674 | u16 br_vfid = mlxsw_sp_vfid_to_br_vfid(vfid->vfid); | |
2675 | ||
2676 | clear_bit(br_vfid, mlxsw_sp->br_vfids.mapped); | |
2677 | list_del(&vfid->list); | |
2678 | ||
2679 | __mlxsw_sp_vfid_destroy(mlxsw_sp, vfid->vfid); | |
2680 | ||
2681 | kfree(vfid); | |
2682 | } | |
2683 | ||
2684 | static int mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_vport, | |
039c49a6 IS |
2685 | struct net_device *br_dev, |
2686 | bool flush_fdb) | |
26f0e7fb IS |
2687 | { |
2688 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp; | |
2689 | u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport); | |
2690 | struct net_device *dev = mlxsw_sp_vport->dev; | |
2691 | struct mlxsw_sp_vfid *vfid, *new_vfid; | |
2692 | int err; | |
2693 | ||
2694 | vfid = mlxsw_sp_br_vfid_find(mlxsw_sp, br_dev); | |
2695 | if (!vfid) { | |
2696 | WARN_ON(!vfid); | |
2697 | return -EINVAL; | |
2698 | } | |
2699 | ||
2700 | /* We need a vFID to go back to after leaving the bridge's vFID. */ | |
2701 | new_vfid = mlxsw_sp_vfid_find(mlxsw_sp, vid); | |
2702 | if (!new_vfid) { | |
2703 | new_vfid = mlxsw_sp_vfid_create(mlxsw_sp, vid); | |
2704 | if (IS_ERR(new_vfid)) { | |
2705 | netdev_err(dev, "Failed to create vFID for VID=%d\n", | |
2706 | vid); | |
2707 | return PTR_ERR(new_vfid); | |
2708 | } | |
2709 | } | |
2710 | ||
2711 | /* Invalidate existing {Port, VID} to vFID mapping and create a new | |
2712 | * one for the new vFID. | |
2713 | */ | |
2714 | err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, | |
2715 | MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, | |
2716 | false, | |
2717 | mlxsw_sp_vfid_to_fid(vfid->vfid), | |
2718 | vid); | |
2719 | if (err) { | |
2720 | netdev_err(dev, "Failed to invalidate {Port, VID} to vFID=%d mapping\n", | |
2721 | vfid->vfid); | |
2722 | goto err_port_vid_to_fid_invalidate; | |
2723 | } | |
2724 | ||
2725 | err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, | |
2726 | MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, | |
2727 | true, | |
2728 | mlxsw_sp_vfid_to_fid(new_vfid->vfid), | |
2729 | vid); | |
2730 | if (err) { | |
2731 | netdev_err(dev, "Failed to map {Port, VID} to vFID=%d\n", | |
2732 | new_vfid->vfid); | |
2733 | goto err_port_vid_to_fid_validate; | |
2734 | } | |
2735 | ||
2736 | err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false); | |
2737 | if (err) { | |
2738 | netdev_err(dev, "Failed to disable learning\n"); | |
2739 | goto err_port_vid_learning_set; | |
2740 | } | |
2741 | ||
2742 | err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, false, | |
2743 | false); | |
2744 | if (err) { | |
2745 | netdev_err(dev, "Failed clear to clear flooding\n"); | |
2746 | goto err_vport_flood_set; | |
2747 | } | |
2748 | ||
039c49a6 IS |
2749 | if (flush_fdb && mlxsw_sp_vport_fdb_flush(mlxsw_sp_vport)) |
2750 | netdev_err(dev, "Failed to flush FDB\n"); | |
2751 | ||
26f0e7fb IS |
2752 | /* Switch between the vFIDs and destroy the old one if needed. */ |
2753 | new_vfid->nr_vports++; | |
2754 | mlxsw_sp_vport->vport.vfid = new_vfid; | |
2755 | vfid->nr_vports--; | |
2756 | if (!vfid->nr_vports) | |
2757 | mlxsw_sp_br_vfid_destroy(mlxsw_sp, vfid); | |
2758 | ||
2759 | mlxsw_sp_vport->learning = 0; | |
2760 | mlxsw_sp_vport->learning_sync = 0; | |
2761 | mlxsw_sp_vport->uc_flood = 0; | |
2762 | mlxsw_sp_vport->bridged = 0; | |
2763 | ||
2764 | return 0; | |
2765 | ||
2766 | err_vport_flood_set: | |
2767 | err_port_vid_learning_set: | |
2768 | err_port_vid_to_fid_validate: | |
2769 | err_port_vid_to_fid_invalidate: | |
2770 | /* Rollback vFID only if new. */ | |
2771 | if (!new_vfid->nr_vports) | |
2772 | mlxsw_sp_vfid_destroy(mlxsw_sp, new_vfid); | |
2773 | return err; | |
2774 | } | |
2775 | ||
2776 | static int mlxsw_sp_vport_bridge_join(struct mlxsw_sp_port *mlxsw_sp_vport, | |
2777 | struct net_device *br_dev) | |
2778 | { | |
2779 | struct mlxsw_sp_vfid *old_vfid = mlxsw_sp_vport->vport.vfid; | |
2780 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp; | |
2781 | u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport); | |
2782 | struct net_device *dev = mlxsw_sp_vport->dev; | |
2783 | struct mlxsw_sp_vfid *vfid; | |
2784 | int err; | |
2785 | ||
2786 | vfid = mlxsw_sp_br_vfid_find(mlxsw_sp, br_dev); | |
2787 | if (!vfid) { | |
2788 | vfid = mlxsw_sp_br_vfid_create(mlxsw_sp, br_dev); | |
2789 | if (IS_ERR(vfid)) { | |
2790 | netdev_err(dev, "Failed to create bridge vFID\n"); | |
2791 | return PTR_ERR(vfid); | |
2792 | } | |
2793 | } | |
2794 | ||
2795 | err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, true, false); | |
2796 | if (err) { | |
2797 | netdev_err(dev, "Failed to setup flooding for vFID=%d\n", | |
2798 | vfid->vfid); | |
2799 | goto err_port_flood_set; | |
2800 | } | |
2801 | ||
2802 | err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true); | |
2803 | if (err) { | |
2804 | netdev_err(dev, "Failed to enable learning\n"); | |
2805 | goto err_port_vid_learning_set; | |
2806 | } | |
2807 | ||
2808 | /* We need to invalidate existing {Port, VID} to vFID mapping and | |
2809 | * create a new one for the bridge's vFID. | |
2810 | */ | |
2811 | err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, | |
2812 | MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, | |
2813 | false, | |
2814 | mlxsw_sp_vfid_to_fid(old_vfid->vfid), | |
2815 | vid); | |
2816 | if (err) { | |
2817 | netdev_err(dev, "Failed to invalidate {Port, VID} to vFID=%d mapping\n", | |
2818 | old_vfid->vfid); | |
2819 | goto err_port_vid_to_fid_invalidate; | |
2820 | } | |
2821 | ||
2822 | err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, | |
2823 | MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, | |
2824 | true, | |
2825 | mlxsw_sp_vfid_to_fid(vfid->vfid), | |
2826 | vid); | |
2827 | if (err) { | |
2828 | netdev_err(dev, "Failed to map {Port, VID} to vFID=%d\n", | |
2829 | vfid->vfid); | |
2830 | goto err_port_vid_to_fid_validate; | |
2831 | } | |
2832 | ||
2833 | /* Switch between the vFIDs and destroy the old one if needed. */ | |
2834 | vfid->nr_vports++; | |
2835 | mlxsw_sp_vport->vport.vfid = vfid; | |
2836 | old_vfid->nr_vports--; | |
2837 | if (!old_vfid->nr_vports) | |
2838 | mlxsw_sp_vfid_destroy(mlxsw_sp, old_vfid); | |
2839 | ||
2840 | mlxsw_sp_vport->learning = 1; | |
2841 | mlxsw_sp_vport->learning_sync = 1; | |
2842 | mlxsw_sp_vport->uc_flood = 1; | |
2843 | mlxsw_sp_vport->bridged = 1; | |
2844 | ||
2845 | return 0; | |
2846 | ||
2847 | err_port_vid_to_fid_validate: | |
2848 | mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, | |
2849 | MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, false, | |
2850 | mlxsw_sp_vfid_to_fid(old_vfid->vfid), vid); | |
2851 | err_port_vid_to_fid_invalidate: | |
2852 | mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false); | |
2853 | err_port_vid_learning_set: | |
2854 | mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, false, false); | |
2855 | err_port_flood_set: | |
2856 | if (!vfid->nr_vports) | |
2857 | mlxsw_sp_br_vfid_destroy(mlxsw_sp, vfid); | |
2858 | return err; | |
2859 | } | |
2860 | ||
2861 | static bool | |
2862 | mlxsw_sp_port_master_bridge_check(const struct mlxsw_sp_port *mlxsw_sp_port, | |
2863 | const struct net_device *br_dev) | |
2864 | { | |
2865 | struct mlxsw_sp_port *mlxsw_sp_vport; | |
2866 | ||
2867 | list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list, | |
2868 | vport.list) { | |
2869 | if (mlxsw_sp_vport_br_get(mlxsw_sp_vport) == br_dev) | |
2870 | return false; | |
2871 | } | |
2872 | ||
2873 | return true; | |
2874 | } | |
2875 | ||
2876 | static int mlxsw_sp_netdevice_vport_event(struct net_device *dev, | |
2877 | unsigned long event, void *ptr, | |
2878 | u16 vid) | |
2879 | { | |
2880 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); | |
2881 | struct netdev_notifier_changeupper_info *info = ptr; | |
2882 | struct mlxsw_sp_port *mlxsw_sp_vport; | |
2883 | struct net_device *upper_dev; | |
2884 | int err; | |
2885 | ||
2886 | mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid); | |
2887 | ||
2888 | switch (event) { | |
2889 | case NETDEV_PRECHANGEUPPER: | |
2890 | upper_dev = info->upper_dev; | |
2891 | if (!info->master || !info->linking) | |
2892 | break; | |
2893 | if (!netif_is_bridge_master(upper_dev)) | |
2894 | return NOTIFY_BAD; | |
2895 | /* We can't have multiple VLAN interfaces configured on | |
2896 | * the same port and being members in the same bridge. | |
2897 | */ | |
2898 | if (!mlxsw_sp_port_master_bridge_check(mlxsw_sp_port, | |
2899 | upper_dev)) | |
2900 | return NOTIFY_BAD; | |
2901 | break; | |
2902 | case NETDEV_CHANGEUPPER: | |
2903 | upper_dev = info->upper_dev; | |
2904 | if (!info->master) | |
2905 | break; | |
2906 | if (info->linking) { | |
2907 | if (!mlxsw_sp_vport) { | |
2908 | WARN_ON(!mlxsw_sp_vport); | |
2909 | return NOTIFY_BAD; | |
2910 | } | |
2911 | err = mlxsw_sp_vport_bridge_join(mlxsw_sp_vport, | |
2912 | upper_dev); | |
2913 | if (err) { | |
2914 | netdev_err(dev, "Failed to join bridge\n"); | |
2915 | return NOTIFY_BAD; | |
2916 | } | |
2917 | } else { | |
2918 | /* We ignore bridge's unlinking notifications if vPort | |
2919 | * is gone, since we already left the bridge when the | |
2920 | * VLAN device was unlinked from the real device. | |
2921 | */ | |
2922 | if (!mlxsw_sp_vport) | |
2923 | return NOTIFY_DONE; | |
2924 | err = mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport, | |
039c49a6 | 2925 | upper_dev, true); |
26f0e7fb IS |
2926 | if (err) { |
2927 | netdev_err(dev, "Failed to leave bridge\n"); | |
2928 | return NOTIFY_BAD; | |
2929 | } | |
2930 | } | |
2931 | } | |
2932 | ||
2933 | return NOTIFY_DONE; | |
2934 | } | |
2935 | ||
272c4470 IS |
2936 | static int mlxsw_sp_netdevice_lag_vport_event(struct net_device *lag_dev, |
2937 | unsigned long event, void *ptr, | |
2938 | u16 vid) | |
2939 | { | |
2940 | struct net_device *dev; | |
2941 | struct list_head *iter; | |
2942 | int ret; | |
2943 | ||
2944 | netdev_for_each_lower_dev(lag_dev, dev, iter) { | |
2945 | if (mlxsw_sp_port_dev_check(dev)) { | |
2946 | ret = mlxsw_sp_netdevice_vport_event(dev, event, ptr, | |
2947 | vid); | |
2948 | if (ret == NOTIFY_BAD) | |
2949 | return ret; | |
2950 | } | |
2951 | } | |
2952 | ||
2953 | return NOTIFY_DONE; | |
2954 | } | |
2955 | ||
26f0e7fb IS |
2956 | static int mlxsw_sp_netdevice_vlan_event(struct net_device *vlan_dev, |
2957 | unsigned long event, void *ptr) | |
2958 | { | |
2959 | struct net_device *real_dev = vlan_dev_real_dev(vlan_dev); | |
2960 | u16 vid = vlan_dev_vlan_id(vlan_dev); | |
2961 | ||
272c4470 IS |
2962 | if (mlxsw_sp_port_dev_check(real_dev)) |
2963 | return mlxsw_sp_netdevice_vport_event(real_dev, event, ptr, | |
2964 | vid); | |
2965 | else if (netif_is_lag_master(real_dev)) | |
2966 | return mlxsw_sp_netdevice_lag_vport_event(real_dev, event, ptr, | |
2967 | vid); | |
26f0e7fb | 2968 | |
272c4470 | 2969 | return NOTIFY_DONE; |
26f0e7fb IS |
2970 | } |
2971 | ||
0d65fc13 JP |
2972 | static int mlxsw_sp_netdevice_event(struct notifier_block *unused, |
2973 | unsigned long event, void *ptr) | |
2974 | { | |
2975 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); | |
2976 | ||
2977 | if (mlxsw_sp_port_dev_check(dev)) | |
2978 | return mlxsw_sp_netdevice_port_event(dev, event, ptr); | |
2979 | ||
2980 | if (netif_is_lag_master(dev)) | |
2981 | return mlxsw_sp_netdevice_lag_event(dev, event, ptr); | |
2982 | ||
26f0e7fb IS |
2983 | if (is_vlan_dev(dev)) |
2984 | return mlxsw_sp_netdevice_vlan_event(dev, event, ptr); | |
2985 | ||
0d65fc13 JP |
2986 | return NOTIFY_DONE; |
2987 | } | |
2988 | ||
56ade8fe JP |
2989 | static struct notifier_block mlxsw_sp_netdevice_nb __read_mostly = { |
2990 | .notifier_call = mlxsw_sp_netdevice_event, | |
2991 | }; | |
2992 | ||
2993 | static int __init mlxsw_sp_module_init(void) | |
2994 | { | |
2995 | int err; | |
2996 | ||
2997 | register_netdevice_notifier(&mlxsw_sp_netdevice_nb); | |
2998 | err = mlxsw_core_driver_register(&mlxsw_sp_driver); | |
2999 | if (err) | |
3000 | goto err_core_driver_register; | |
3001 | return 0; | |
3002 | ||
3003 | err_core_driver_register: | |
3004 | unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb); | |
3005 | return err; | |
3006 | } | |
3007 | ||
3008 | static void __exit mlxsw_sp_module_exit(void) | |
3009 | { | |
3010 | mlxsw_core_driver_unregister(&mlxsw_sp_driver); | |
3011 | unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb); | |
3012 | } | |
3013 | ||
3014 | module_init(mlxsw_sp_module_init); | |
3015 | module_exit(mlxsw_sp_module_exit); | |
3016 | ||
3017 | MODULE_LICENSE("Dual BSD/GPL"); | |
3018 | MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>"); | |
3019 | MODULE_DESCRIPTION("Mellanox Spectrum driver"); | |
3020 | MODULE_MLXSW_DRIVER_ALIAS(MLXSW_DEVICE_KIND_SPECTRUM); |