Commit | Line | Data |
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464dce18 IS |
1 | /* |
2 | * drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | |
e437f3b6 | 3 | * Copyright (c) 2016-2018 Mellanox Technologies. All rights reserved. |
464dce18 IS |
4 | * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com> |
5 | * Copyright (c) 2016 Ido Schimmel <idosch@mellanox.com> | |
c723c735 | 6 | * Copyright (c) 2016 Yotam Gigi <yotamg@mellanox.com> |
e437f3b6 | 7 | * Copyright (c) 2017-2018 Petr Machata <petrm@mellanox.com> |
464dce18 IS |
8 | * |
9 | * Redistribution and use in source and binary forms, with or without | |
10 | * modification, are permitted provided that the following conditions are met: | |
11 | * | |
12 | * 1. Redistributions of source code must retain the above copyright | |
13 | * notice, this list of conditions and the following disclaimer. | |
14 | * 2. Redistributions in binary form must reproduce the above copyright | |
15 | * notice, this list of conditions and the following disclaimer in the | |
16 | * documentation and/or other materials provided with the distribution. | |
17 | * 3. Neither the names of the copyright holders nor the names of its | |
18 | * contributors may be used to endorse or promote products derived from | |
19 | * this software without specific prior written permission. | |
20 | * | |
21 | * Alternatively, this software may be distributed under the terms of the | |
22 | * GNU General Public License ("GPL") version 2 as published by the Free | |
23 | * Software Foundation. | |
24 | * | |
25 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
26 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
27 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
28 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
29 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
32 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
33 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
34 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
35 | * POSSIBILITY OF SUCH DAMAGE. | |
36 | */ | |
37 | ||
38 | #include <linux/kernel.h> | |
39 | #include <linux/types.h> | |
5e9c16cc JP |
40 | #include <linux/rhashtable.h> |
41 | #include <linux/bitops.h> | |
42 | #include <linux/in6.h> | |
c723c735 | 43 | #include <linux/notifier.h> |
df6dd79b | 44 | #include <linux/inetdevice.h> |
9db032bb | 45 | #include <linux/netdevice.h> |
03ea01e9 | 46 | #include <linux/if_bridge.h> |
b5f3e0d4 | 47 | #include <linux/socket.h> |
428b851f | 48 | #include <linux/route.h> |
eb789980 | 49 | #include <linux/gcd.h> |
af658b6a | 50 | #include <linux/random.h> |
c723c735 | 51 | #include <net/netevent.h> |
6cf3c971 JP |
52 | #include <net/neighbour.h> |
53 | #include <net/arp.h> | |
b45f64d1 | 54 | #include <net/ip_fib.h> |
583419fd | 55 | #include <net/ip6_fib.h> |
5d7bfd14 | 56 | #include <net/fib_rules.h> |
6ddb7426 | 57 | #include <net/ip_tunnels.h> |
57837885 | 58 | #include <net/l3mdev.h> |
5ea1237f | 59 | #include <net/addrconf.h> |
d5eb89cf AS |
60 | #include <net/ndisc.h> |
61 | #include <net/ipv6.h> | |
04b1d4e5 | 62 | #include <net/fib_notifier.h> |
464dce18 IS |
63 | |
64 | #include "spectrum.h" | |
65 | #include "core.h" | |
66 | #include "reg.h" | |
e0c0afd8 AS |
67 | #include "spectrum_cnt.h" |
68 | #include "spectrum_dpipe.h" | |
38ebc0f4 | 69 | #include "spectrum_ipip.h" |
d42b0965 YG |
70 | #include "spectrum_mr.h" |
71 | #include "spectrum_mr_tcam.h" | |
e0c0afd8 | 72 | #include "spectrum_router.h" |
803335ac | 73 | #include "spectrum_span.h" |
464dce18 | 74 | |
2b52ce02 | 75 | struct mlxsw_sp_fib; |
9011b677 IS |
76 | struct mlxsw_sp_vr; |
77 | struct mlxsw_sp_lpm_tree; | |
e4f3c1c1 | 78 | struct mlxsw_sp_rif_ops; |
9011b677 IS |
79 | |
80 | struct mlxsw_sp_router { | |
81 | struct mlxsw_sp *mlxsw_sp; | |
5f9efffb | 82 | struct mlxsw_sp_rif **rifs; |
9011b677 IS |
83 | struct mlxsw_sp_vr *vrs; |
84 | struct rhashtable neigh_ht; | |
85 | struct rhashtable nexthop_group_ht; | |
86 | struct rhashtable nexthop_ht; | |
dbe4598c | 87 | struct list_head nexthop_list; |
9011b677 | 88 | struct { |
2b52ce02 IS |
89 | /* One tree for each protocol: IPv4 and IPv6 */ |
90 | struct mlxsw_sp_lpm_tree *proto_trees[2]; | |
9011b677 IS |
91 | struct mlxsw_sp_lpm_tree *trees; |
92 | unsigned int tree_count; | |
93 | } lpm; | |
94 | struct { | |
95 | struct delayed_work dw; | |
96 | unsigned long interval; /* ms */ | |
97 | } neighs_update; | |
98 | struct delayed_work nexthop_probe_dw; | |
99 | #define MLXSW_SP_UNRESOLVED_NH_PROBE_INTERVAL 5000 /* ms */ | |
100 | struct list_head nexthop_neighs_list; | |
1012b9ac | 101 | struct list_head ipip_list; |
9011b677 | 102 | bool aborted; |
7e39d115 | 103 | struct notifier_block fib_nb; |
48fac885 | 104 | struct notifier_block netevent_nb; |
e4f3c1c1 | 105 | const struct mlxsw_sp_rif_ops **rif_ops_arr; |
38ebc0f4 | 106 | const struct mlxsw_sp_ipip_ops **ipip_ops_arr; |
9011b677 IS |
107 | }; |
108 | ||
4724ba56 IS |
109 | struct mlxsw_sp_rif { |
110 | struct list_head nexthop_list; | |
111 | struct list_head neigh_list; | |
112 | struct net_device *dev; | |
a1107487 | 113 | struct mlxsw_sp_fid *fid; |
4724ba56 IS |
114 | unsigned char addr[ETH_ALEN]; |
115 | int mtu; | |
bf95233e | 116 | u16 rif_index; |
6913229e | 117 | u16 vr_id; |
e4f3c1c1 IS |
118 | const struct mlxsw_sp_rif_ops *ops; |
119 | struct mlxsw_sp *mlxsw_sp; | |
120 | ||
e0c0afd8 AS |
121 | unsigned int counter_ingress; |
122 | bool counter_ingress_valid; | |
123 | unsigned int counter_egress; | |
124 | bool counter_egress_valid; | |
4724ba56 IS |
125 | }; |
126 | ||
e4f3c1c1 IS |
127 | struct mlxsw_sp_rif_params { |
128 | struct net_device *dev; | |
129 | union { | |
130 | u16 system_port; | |
131 | u16 lag_id; | |
132 | }; | |
133 | u16 vid; | |
134 | bool lag; | |
135 | }; | |
136 | ||
4d93ceeb IS |
137 | struct mlxsw_sp_rif_subport { |
138 | struct mlxsw_sp_rif common; | |
139 | union { | |
140 | u16 system_port; | |
141 | u16 lag_id; | |
142 | }; | |
143 | u16 vid; | |
144 | bool lag; | |
145 | }; | |
146 | ||
6ddb7426 PM |
147 | struct mlxsw_sp_rif_ipip_lb { |
148 | struct mlxsw_sp_rif common; | |
149 | struct mlxsw_sp_rif_ipip_lb_config lb_config; | |
150 | u16 ul_vr_id; /* Reserved for Spectrum-2. */ | |
151 | }; | |
152 | ||
153 | struct mlxsw_sp_rif_params_ipip_lb { | |
154 | struct mlxsw_sp_rif_params common; | |
155 | struct mlxsw_sp_rif_ipip_lb_config lb_config; | |
156 | }; | |
157 | ||
e4f3c1c1 IS |
158 | struct mlxsw_sp_rif_ops { |
159 | enum mlxsw_sp_rif_type type; | |
160 | size_t rif_size; | |
161 | ||
162 | void (*setup)(struct mlxsw_sp_rif *rif, | |
163 | const struct mlxsw_sp_rif_params *params); | |
164 | int (*configure)(struct mlxsw_sp_rif *rif); | |
165 | void (*deconfigure)(struct mlxsw_sp_rif *rif); | |
166 | struct mlxsw_sp_fid * (*fid_get)(struct mlxsw_sp_rif *rif); | |
167 | }; | |
168 | ||
2b52ce02 IS |
169 | static void mlxsw_sp_lpm_tree_hold(struct mlxsw_sp_lpm_tree *lpm_tree); |
170 | static void mlxsw_sp_lpm_tree_put(struct mlxsw_sp *mlxsw_sp, | |
171 | struct mlxsw_sp_lpm_tree *lpm_tree); | |
172 | static int mlxsw_sp_vr_lpm_tree_bind(struct mlxsw_sp *mlxsw_sp, | |
173 | const struct mlxsw_sp_fib *fib, | |
174 | u8 tree_id); | |
175 | static int mlxsw_sp_vr_lpm_tree_unbind(struct mlxsw_sp *mlxsw_sp, | |
176 | const struct mlxsw_sp_fib *fib); | |
177 | ||
e0c0afd8 AS |
178 | static unsigned int * |
179 | mlxsw_sp_rif_p_counter_get(struct mlxsw_sp_rif *rif, | |
180 | enum mlxsw_sp_rif_counter_dir dir) | |
181 | { | |
182 | switch (dir) { | |
183 | case MLXSW_SP_RIF_COUNTER_EGRESS: | |
184 | return &rif->counter_egress; | |
185 | case MLXSW_SP_RIF_COUNTER_INGRESS: | |
186 | return &rif->counter_ingress; | |
187 | } | |
188 | return NULL; | |
189 | } | |
190 | ||
191 | static bool | |
192 | mlxsw_sp_rif_counter_valid_get(struct mlxsw_sp_rif *rif, | |
193 | enum mlxsw_sp_rif_counter_dir dir) | |
194 | { | |
195 | switch (dir) { | |
196 | case MLXSW_SP_RIF_COUNTER_EGRESS: | |
197 | return rif->counter_egress_valid; | |
198 | case MLXSW_SP_RIF_COUNTER_INGRESS: | |
199 | return rif->counter_ingress_valid; | |
200 | } | |
201 | return false; | |
202 | } | |
203 | ||
204 | static void | |
205 | mlxsw_sp_rif_counter_valid_set(struct mlxsw_sp_rif *rif, | |
206 | enum mlxsw_sp_rif_counter_dir dir, | |
207 | bool valid) | |
208 | { | |
209 | switch (dir) { | |
210 | case MLXSW_SP_RIF_COUNTER_EGRESS: | |
211 | rif->counter_egress_valid = valid; | |
212 | break; | |
213 | case MLXSW_SP_RIF_COUNTER_INGRESS: | |
214 | rif->counter_ingress_valid = valid; | |
215 | break; | |
216 | } | |
217 | } | |
218 | ||
219 | static int mlxsw_sp_rif_counter_edit(struct mlxsw_sp *mlxsw_sp, u16 rif_index, | |
220 | unsigned int counter_index, bool enable, | |
221 | enum mlxsw_sp_rif_counter_dir dir) | |
222 | { | |
223 | char ritr_pl[MLXSW_REG_RITR_LEN]; | |
224 | bool is_egress = false; | |
225 | int err; | |
226 | ||
227 | if (dir == MLXSW_SP_RIF_COUNTER_EGRESS) | |
228 | is_egress = true; | |
229 | mlxsw_reg_ritr_rif_pack(ritr_pl, rif_index); | |
230 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl); | |
231 | if (err) | |
232 | return err; | |
233 | ||
234 | mlxsw_reg_ritr_counter_pack(ritr_pl, counter_index, enable, | |
235 | is_egress); | |
236 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl); | |
237 | } | |
238 | ||
239 | int mlxsw_sp_rif_counter_value_get(struct mlxsw_sp *mlxsw_sp, | |
240 | struct mlxsw_sp_rif *rif, | |
241 | enum mlxsw_sp_rif_counter_dir dir, u64 *cnt) | |
242 | { | |
243 | char ricnt_pl[MLXSW_REG_RICNT_LEN]; | |
244 | unsigned int *p_counter_index; | |
245 | bool valid; | |
246 | int err; | |
247 | ||
248 | valid = mlxsw_sp_rif_counter_valid_get(rif, dir); | |
249 | if (!valid) | |
250 | return -EINVAL; | |
251 | ||
252 | p_counter_index = mlxsw_sp_rif_p_counter_get(rif, dir); | |
253 | if (!p_counter_index) | |
254 | return -EINVAL; | |
255 | mlxsw_reg_ricnt_pack(ricnt_pl, *p_counter_index, | |
256 | MLXSW_REG_RICNT_OPCODE_NOP); | |
257 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ricnt), ricnt_pl); | |
258 | if (err) | |
259 | return err; | |
260 | *cnt = mlxsw_reg_ricnt_good_unicast_packets_get(ricnt_pl); | |
261 | return 0; | |
262 | } | |
263 | ||
264 | static int mlxsw_sp_rif_counter_clear(struct mlxsw_sp *mlxsw_sp, | |
265 | unsigned int counter_index) | |
266 | { | |
267 | char ricnt_pl[MLXSW_REG_RICNT_LEN]; | |
268 | ||
269 | mlxsw_reg_ricnt_pack(ricnt_pl, counter_index, | |
270 | MLXSW_REG_RICNT_OPCODE_CLEAR); | |
271 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ricnt), ricnt_pl); | |
272 | } | |
273 | ||
274 | int mlxsw_sp_rif_counter_alloc(struct mlxsw_sp *mlxsw_sp, | |
275 | struct mlxsw_sp_rif *rif, | |
276 | enum mlxsw_sp_rif_counter_dir dir) | |
277 | { | |
278 | unsigned int *p_counter_index; | |
279 | int err; | |
280 | ||
281 | p_counter_index = mlxsw_sp_rif_p_counter_get(rif, dir); | |
282 | if (!p_counter_index) | |
283 | return -EINVAL; | |
284 | err = mlxsw_sp_counter_alloc(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_RIF, | |
285 | p_counter_index); | |
286 | if (err) | |
287 | return err; | |
288 | ||
289 | err = mlxsw_sp_rif_counter_clear(mlxsw_sp, *p_counter_index); | |
290 | if (err) | |
291 | goto err_counter_clear; | |
292 | ||
293 | err = mlxsw_sp_rif_counter_edit(mlxsw_sp, rif->rif_index, | |
294 | *p_counter_index, true, dir); | |
295 | if (err) | |
296 | goto err_counter_edit; | |
297 | mlxsw_sp_rif_counter_valid_set(rif, dir, true); | |
298 | return 0; | |
299 | ||
300 | err_counter_edit: | |
301 | err_counter_clear: | |
302 | mlxsw_sp_counter_free(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_RIF, | |
303 | *p_counter_index); | |
304 | return err; | |
305 | } | |
306 | ||
307 | void mlxsw_sp_rif_counter_free(struct mlxsw_sp *mlxsw_sp, | |
308 | struct mlxsw_sp_rif *rif, | |
309 | enum mlxsw_sp_rif_counter_dir dir) | |
310 | { | |
311 | unsigned int *p_counter_index; | |
312 | ||
6b1206bb AS |
313 | if (!mlxsw_sp_rif_counter_valid_get(rif, dir)) |
314 | return; | |
315 | ||
e0c0afd8 AS |
316 | p_counter_index = mlxsw_sp_rif_p_counter_get(rif, dir); |
317 | if (WARN_ON(!p_counter_index)) | |
318 | return; | |
319 | mlxsw_sp_rif_counter_edit(mlxsw_sp, rif->rif_index, | |
320 | *p_counter_index, false, dir); | |
321 | mlxsw_sp_counter_free(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_RIF, | |
322 | *p_counter_index); | |
323 | mlxsw_sp_rif_counter_valid_set(rif, dir, false); | |
324 | } | |
325 | ||
e4f3c1c1 IS |
326 | static void mlxsw_sp_rif_counters_alloc(struct mlxsw_sp_rif *rif) |
327 | { | |
328 | struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp; | |
329 | struct devlink *devlink; | |
330 | ||
331 | devlink = priv_to_devlink(mlxsw_sp->core); | |
332 | if (!devlink_dpipe_table_counter_enabled(devlink, | |
333 | MLXSW_SP_DPIPE_TABLE_NAME_ERIF)) | |
334 | return; | |
335 | mlxsw_sp_rif_counter_alloc(mlxsw_sp, rif, MLXSW_SP_RIF_COUNTER_EGRESS); | |
336 | } | |
337 | ||
338 | static void mlxsw_sp_rif_counters_free(struct mlxsw_sp_rif *rif) | |
339 | { | |
340 | struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp; | |
341 | ||
342 | mlxsw_sp_rif_counter_free(mlxsw_sp, rif, MLXSW_SP_RIF_COUNTER_EGRESS); | |
343 | } | |
344 | ||
4724ba56 IS |
345 | static struct mlxsw_sp_rif * |
346 | mlxsw_sp_rif_find_by_dev(const struct mlxsw_sp *mlxsw_sp, | |
347 | const struct net_device *dev); | |
348 | ||
7dcc18ad | 349 | #define MLXSW_SP_PREFIX_COUNT (sizeof(struct in6_addr) * BITS_PER_BYTE + 1) |
9011b677 IS |
350 | |
351 | struct mlxsw_sp_prefix_usage { | |
352 | DECLARE_BITMAP(b, MLXSW_SP_PREFIX_COUNT); | |
353 | }; | |
354 | ||
53342023 JP |
355 | #define mlxsw_sp_prefix_usage_for_each(prefix, prefix_usage) \ |
356 | for_each_set_bit(prefix, (prefix_usage)->b, MLXSW_SP_PREFIX_COUNT) | |
357 | ||
358 | static bool | |
359 | mlxsw_sp_prefix_usage_eq(struct mlxsw_sp_prefix_usage *prefix_usage1, | |
360 | struct mlxsw_sp_prefix_usage *prefix_usage2) | |
361 | { | |
362 | return !memcmp(prefix_usage1, prefix_usage2, sizeof(*prefix_usage1)); | |
363 | } | |
364 | ||
6b75c480 JP |
365 | static void |
366 | mlxsw_sp_prefix_usage_cpy(struct mlxsw_sp_prefix_usage *prefix_usage1, | |
367 | struct mlxsw_sp_prefix_usage *prefix_usage2) | |
368 | { | |
369 | memcpy(prefix_usage1, prefix_usage2, sizeof(*prefix_usage1)); | |
370 | } | |
371 | ||
5e9c16cc JP |
372 | static void |
373 | mlxsw_sp_prefix_usage_set(struct mlxsw_sp_prefix_usage *prefix_usage, | |
374 | unsigned char prefix_len) | |
375 | { | |
376 | set_bit(prefix_len, prefix_usage->b); | |
377 | } | |
378 | ||
379 | static void | |
380 | mlxsw_sp_prefix_usage_clear(struct mlxsw_sp_prefix_usage *prefix_usage, | |
381 | unsigned char prefix_len) | |
382 | { | |
383 | clear_bit(prefix_len, prefix_usage->b); | |
384 | } | |
385 | ||
386 | struct mlxsw_sp_fib_key { | |
387 | unsigned char addr[sizeof(struct in6_addr)]; | |
388 | unsigned char prefix_len; | |
389 | }; | |
390 | ||
61c503f9 JP |
391 | enum mlxsw_sp_fib_entry_type { |
392 | MLXSW_SP_FIB_ENTRY_TYPE_REMOTE, | |
393 | MLXSW_SP_FIB_ENTRY_TYPE_LOCAL, | |
394 | MLXSW_SP_FIB_ENTRY_TYPE_TRAP, | |
4607f6d2 PM |
395 | |
396 | /* This is a special case of local delivery, where a packet should be | |
397 | * decapsulated on reception. Note that there is no corresponding ENCAP, | |
398 | * because that's a type of next hop, not of FIB entry. (There can be | |
399 | * several next hops in a REMOTE entry, and some of them may be | |
400 | * encapsulating entries.) | |
401 | */ | |
402 | MLXSW_SP_FIB_ENTRY_TYPE_IPIP_DECAP, | |
61c503f9 JP |
403 | }; |
404 | ||
a7ff87ac JP |
405 | struct mlxsw_sp_nexthop_group; |
406 | ||
9aecce1c IS |
407 | struct mlxsw_sp_fib_node { |
408 | struct list_head entry_list; | |
b45f64d1 | 409 | struct list_head list; |
9aecce1c | 410 | struct rhash_head ht_node; |
76610ebb | 411 | struct mlxsw_sp_fib *fib; |
5e9c16cc | 412 | struct mlxsw_sp_fib_key key; |
9aecce1c IS |
413 | }; |
414 | ||
4607f6d2 PM |
415 | struct mlxsw_sp_fib_entry_decap { |
416 | struct mlxsw_sp_ipip_entry *ipip_entry; | |
417 | u32 tunnel_index; | |
418 | }; | |
419 | ||
9aecce1c IS |
420 | struct mlxsw_sp_fib_entry { |
421 | struct list_head list; | |
422 | struct mlxsw_sp_fib_node *fib_node; | |
61c503f9 | 423 | enum mlxsw_sp_fib_entry_type type; |
a7ff87ac JP |
424 | struct list_head nexthop_group_node; |
425 | struct mlxsw_sp_nexthop_group *nh_group; | |
4607f6d2 | 426 | struct mlxsw_sp_fib_entry_decap decap; /* Valid for decap entries. */ |
5e9c16cc JP |
427 | }; |
428 | ||
4f1c7f1f IS |
429 | struct mlxsw_sp_fib4_entry { |
430 | struct mlxsw_sp_fib_entry common; | |
431 | u32 tb_id; | |
432 | u32 prio; | |
433 | u8 tos; | |
434 | u8 type; | |
435 | }; | |
436 | ||
428b851f IS |
437 | struct mlxsw_sp_fib6_entry { |
438 | struct mlxsw_sp_fib_entry common; | |
439 | struct list_head rt6_list; | |
440 | unsigned int nrt6; | |
441 | }; | |
442 | ||
443 | struct mlxsw_sp_rt6 { | |
444 | struct list_head list; | |
445 | struct rt6_info *rt; | |
446 | }; | |
447 | ||
9011b677 IS |
448 | struct mlxsw_sp_lpm_tree { |
449 | u8 id; /* tree ID */ | |
450 | unsigned int ref_count; | |
451 | enum mlxsw_sp_l3proto proto; | |
2b52ce02 | 452 | unsigned long prefix_ref_count[MLXSW_SP_PREFIX_COUNT]; |
9011b677 IS |
453 | struct mlxsw_sp_prefix_usage prefix_usage; |
454 | }; | |
455 | ||
5e9c16cc JP |
456 | struct mlxsw_sp_fib { |
457 | struct rhashtable ht; | |
9aecce1c | 458 | struct list_head node_list; |
76610ebb IS |
459 | struct mlxsw_sp_vr *vr; |
460 | struct mlxsw_sp_lpm_tree *lpm_tree; | |
76610ebb | 461 | enum mlxsw_sp_l3proto proto; |
5e9c16cc JP |
462 | }; |
463 | ||
9011b677 IS |
464 | struct mlxsw_sp_vr { |
465 | u16 id; /* virtual router ID */ | |
466 | u32 tb_id; /* kernel fib table id */ | |
467 | unsigned int rif_count; | |
468 | struct mlxsw_sp_fib *fib4; | |
a3d9bc50 | 469 | struct mlxsw_sp_fib *fib6; |
d42b0965 | 470 | struct mlxsw_sp_mr_table *mr4_table; |
9011b677 IS |
471 | }; |
472 | ||
9aecce1c | 473 | static const struct rhashtable_params mlxsw_sp_fib_ht_params; |
5e9c16cc | 474 | |
2b52ce02 IS |
475 | static struct mlxsw_sp_fib *mlxsw_sp_fib_create(struct mlxsw_sp *mlxsw_sp, |
476 | struct mlxsw_sp_vr *vr, | |
76610ebb | 477 | enum mlxsw_sp_l3proto proto) |
5e9c16cc | 478 | { |
2b52ce02 | 479 | struct mlxsw_sp_lpm_tree *lpm_tree; |
5e9c16cc JP |
480 | struct mlxsw_sp_fib *fib; |
481 | int err; | |
482 | ||
2b52ce02 | 483 | lpm_tree = mlxsw_sp->router->lpm.proto_trees[proto]; |
5e9c16cc JP |
484 | fib = kzalloc(sizeof(*fib), GFP_KERNEL); |
485 | if (!fib) | |
486 | return ERR_PTR(-ENOMEM); | |
487 | err = rhashtable_init(&fib->ht, &mlxsw_sp_fib_ht_params); | |
488 | if (err) | |
489 | goto err_rhashtable_init; | |
9aecce1c | 490 | INIT_LIST_HEAD(&fib->node_list); |
76610ebb IS |
491 | fib->proto = proto; |
492 | fib->vr = vr; | |
2b52ce02 IS |
493 | fib->lpm_tree = lpm_tree; |
494 | mlxsw_sp_lpm_tree_hold(lpm_tree); | |
495 | err = mlxsw_sp_vr_lpm_tree_bind(mlxsw_sp, fib, lpm_tree->id); | |
496 | if (err) | |
497 | goto err_lpm_tree_bind; | |
5e9c16cc JP |
498 | return fib; |
499 | ||
2b52ce02 IS |
500 | err_lpm_tree_bind: |
501 | mlxsw_sp_lpm_tree_put(mlxsw_sp, lpm_tree); | |
5e9c16cc JP |
502 | err_rhashtable_init: |
503 | kfree(fib); | |
504 | return ERR_PTR(err); | |
505 | } | |
506 | ||
2b52ce02 IS |
507 | static void mlxsw_sp_fib_destroy(struct mlxsw_sp *mlxsw_sp, |
508 | struct mlxsw_sp_fib *fib) | |
5e9c16cc | 509 | { |
2b52ce02 IS |
510 | mlxsw_sp_vr_lpm_tree_unbind(mlxsw_sp, fib); |
511 | mlxsw_sp_lpm_tree_put(mlxsw_sp, fib->lpm_tree); | |
9aecce1c | 512 | WARN_ON(!list_empty(&fib->node_list)); |
5e9c16cc JP |
513 | rhashtable_destroy(&fib->ht); |
514 | kfree(fib); | |
515 | } | |
516 | ||
53342023 | 517 | static struct mlxsw_sp_lpm_tree * |
382dbb40 | 518 | mlxsw_sp_lpm_tree_find_unused(struct mlxsw_sp *mlxsw_sp) |
53342023 JP |
519 | { |
520 | static struct mlxsw_sp_lpm_tree *lpm_tree; | |
521 | int i; | |
522 | ||
9011b677 IS |
523 | for (i = 0; i < mlxsw_sp->router->lpm.tree_count; i++) { |
524 | lpm_tree = &mlxsw_sp->router->lpm.trees[i]; | |
382dbb40 IS |
525 | if (lpm_tree->ref_count == 0) |
526 | return lpm_tree; | |
53342023 JP |
527 | } |
528 | return NULL; | |
529 | } | |
530 | ||
531 | static int mlxsw_sp_lpm_tree_alloc(struct mlxsw_sp *mlxsw_sp, | |
532 | struct mlxsw_sp_lpm_tree *lpm_tree) | |
533 | { | |
534 | char ralta_pl[MLXSW_REG_RALTA_LEN]; | |
535 | ||
1a9234e6 IS |
536 | mlxsw_reg_ralta_pack(ralta_pl, true, |
537 | (enum mlxsw_reg_ralxx_protocol) lpm_tree->proto, | |
538 | lpm_tree->id); | |
53342023 JP |
539 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralta), ralta_pl); |
540 | } | |
541 | ||
cc702670 IS |
542 | static void mlxsw_sp_lpm_tree_free(struct mlxsw_sp *mlxsw_sp, |
543 | struct mlxsw_sp_lpm_tree *lpm_tree) | |
53342023 JP |
544 | { |
545 | char ralta_pl[MLXSW_REG_RALTA_LEN]; | |
546 | ||
1a9234e6 IS |
547 | mlxsw_reg_ralta_pack(ralta_pl, false, |
548 | (enum mlxsw_reg_ralxx_protocol) lpm_tree->proto, | |
549 | lpm_tree->id); | |
cc702670 | 550 | mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralta), ralta_pl); |
53342023 JP |
551 | } |
552 | ||
553 | static int | |
554 | mlxsw_sp_lpm_tree_left_struct_set(struct mlxsw_sp *mlxsw_sp, | |
555 | struct mlxsw_sp_prefix_usage *prefix_usage, | |
556 | struct mlxsw_sp_lpm_tree *lpm_tree) | |
557 | { | |
558 | char ralst_pl[MLXSW_REG_RALST_LEN]; | |
559 | u8 root_bin = 0; | |
560 | u8 prefix; | |
561 | u8 last_prefix = MLXSW_REG_RALST_BIN_NO_CHILD; | |
562 | ||
563 | mlxsw_sp_prefix_usage_for_each(prefix, prefix_usage) | |
564 | root_bin = prefix; | |
565 | ||
566 | mlxsw_reg_ralst_pack(ralst_pl, root_bin, lpm_tree->id); | |
567 | mlxsw_sp_prefix_usage_for_each(prefix, prefix_usage) { | |
568 | if (prefix == 0) | |
569 | continue; | |
570 | mlxsw_reg_ralst_bin_pack(ralst_pl, prefix, last_prefix, | |
571 | MLXSW_REG_RALST_BIN_NO_CHILD); | |
572 | last_prefix = prefix; | |
573 | } | |
574 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralst), ralst_pl); | |
575 | } | |
576 | ||
577 | static struct mlxsw_sp_lpm_tree * | |
578 | mlxsw_sp_lpm_tree_create(struct mlxsw_sp *mlxsw_sp, | |
579 | struct mlxsw_sp_prefix_usage *prefix_usage, | |
382dbb40 | 580 | enum mlxsw_sp_l3proto proto) |
53342023 JP |
581 | { |
582 | struct mlxsw_sp_lpm_tree *lpm_tree; | |
583 | int err; | |
584 | ||
382dbb40 | 585 | lpm_tree = mlxsw_sp_lpm_tree_find_unused(mlxsw_sp); |
53342023 JP |
586 | if (!lpm_tree) |
587 | return ERR_PTR(-EBUSY); | |
588 | lpm_tree->proto = proto; | |
589 | err = mlxsw_sp_lpm_tree_alloc(mlxsw_sp, lpm_tree); | |
590 | if (err) | |
591 | return ERR_PTR(err); | |
592 | ||
593 | err = mlxsw_sp_lpm_tree_left_struct_set(mlxsw_sp, prefix_usage, | |
594 | lpm_tree); | |
595 | if (err) | |
596 | goto err_left_struct_set; | |
2083d367 JP |
597 | memcpy(&lpm_tree->prefix_usage, prefix_usage, |
598 | sizeof(lpm_tree->prefix_usage)); | |
2b52ce02 IS |
599 | memset(&lpm_tree->prefix_ref_count, 0, |
600 | sizeof(lpm_tree->prefix_ref_count)); | |
601 | lpm_tree->ref_count = 1; | |
53342023 JP |
602 | return lpm_tree; |
603 | ||
604 | err_left_struct_set: | |
605 | mlxsw_sp_lpm_tree_free(mlxsw_sp, lpm_tree); | |
606 | return ERR_PTR(err); | |
607 | } | |
608 | ||
cc702670 IS |
609 | static void mlxsw_sp_lpm_tree_destroy(struct mlxsw_sp *mlxsw_sp, |
610 | struct mlxsw_sp_lpm_tree *lpm_tree) | |
53342023 | 611 | { |
cc702670 | 612 | mlxsw_sp_lpm_tree_free(mlxsw_sp, lpm_tree); |
53342023 JP |
613 | } |
614 | ||
615 | static struct mlxsw_sp_lpm_tree * | |
616 | mlxsw_sp_lpm_tree_get(struct mlxsw_sp *mlxsw_sp, | |
617 | struct mlxsw_sp_prefix_usage *prefix_usage, | |
382dbb40 | 618 | enum mlxsw_sp_l3proto proto) |
53342023 JP |
619 | { |
620 | struct mlxsw_sp_lpm_tree *lpm_tree; | |
621 | int i; | |
622 | ||
9011b677 IS |
623 | for (i = 0; i < mlxsw_sp->router->lpm.tree_count; i++) { |
624 | lpm_tree = &mlxsw_sp->router->lpm.trees[i]; | |
8b99becd JP |
625 | if (lpm_tree->ref_count != 0 && |
626 | lpm_tree->proto == proto && | |
53342023 | 627 | mlxsw_sp_prefix_usage_eq(&lpm_tree->prefix_usage, |
2b52ce02 IS |
628 | prefix_usage)) { |
629 | mlxsw_sp_lpm_tree_hold(lpm_tree); | |
fc922bb0 | 630 | return lpm_tree; |
2b52ce02 | 631 | } |
53342023 | 632 | } |
fc922bb0 IS |
633 | return mlxsw_sp_lpm_tree_create(mlxsw_sp, prefix_usage, proto); |
634 | } | |
53342023 | 635 | |
fc922bb0 IS |
636 | static void mlxsw_sp_lpm_tree_hold(struct mlxsw_sp_lpm_tree *lpm_tree) |
637 | { | |
53342023 | 638 | lpm_tree->ref_count++; |
53342023 JP |
639 | } |
640 | ||
cc702670 IS |
641 | static void mlxsw_sp_lpm_tree_put(struct mlxsw_sp *mlxsw_sp, |
642 | struct mlxsw_sp_lpm_tree *lpm_tree) | |
53342023 JP |
643 | { |
644 | if (--lpm_tree->ref_count == 0) | |
cc702670 | 645 | mlxsw_sp_lpm_tree_destroy(mlxsw_sp, lpm_tree); |
53342023 JP |
646 | } |
647 | ||
d7a60306 | 648 | #define MLXSW_SP_LPM_TREE_MIN 1 /* tree 0 is reserved */ |
8494ab06 IS |
649 | |
650 | static int mlxsw_sp_lpm_init(struct mlxsw_sp *mlxsw_sp) | |
53342023 | 651 | { |
2b52ce02 | 652 | struct mlxsw_sp_prefix_usage req_prefix_usage = {{ 0 } }; |
53342023 | 653 | struct mlxsw_sp_lpm_tree *lpm_tree; |
8494ab06 | 654 | u64 max_trees; |
2b52ce02 | 655 | int err, i; |
53342023 | 656 | |
8494ab06 IS |
657 | if (!MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_LPM_TREES)) |
658 | return -EIO; | |
659 | ||
660 | max_trees = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_LPM_TREES); | |
9011b677 IS |
661 | mlxsw_sp->router->lpm.tree_count = max_trees - MLXSW_SP_LPM_TREE_MIN; |
662 | mlxsw_sp->router->lpm.trees = kcalloc(mlxsw_sp->router->lpm.tree_count, | |
8494ab06 IS |
663 | sizeof(struct mlxsw_sp_lpm_tree), |
664 | GFP_KERNEL); | |
9011b677 | 665 | if (!mlxsw_sp->router->lpm.trees) |
8494ab06 IS |
666 | return -ENOMEM; |
667 | ||
9011b677 IS |
668 | for (i = 0; i < mlxsw_sp->router->lpm.tree_count; i++) { |
669 | lpm_tree = &mlxsw_sp->router->lpm.trees[i]; | |
53342023 JP |
670 | lpm_tree->id = i + MLXSW_SP_LPM_TREE_MIN; |
671 | } | |
8494ab06 | 672 | |
2b52ce02 IS |
673 | lpm_tree = mlxsw_sp_lpm_tree_get(mlxsw_sp, &req_prefix_usage, |
674 | MLXSW_SP_L3_PROTO_IPV4); | |
675 | if (IS_ERR(lpm_tree)) { | |
676 | err = PTR_ERR(lpm_tree); | |
677 | goto err_ipv4_tree_get; | |
678 | } | |
679 | mlxsw_sp->router->lpm.proto_trees[MLXSW_SP_L3_PROTO_IPV4] = lpm_tree; | |
680 | ||
681 | lpm_tree = mlxsw_sp_lpm_tree_get(mlxsw_sp, &req_prefix_usage, | |
682 | MLXSW_SP_L3_PROTO_IPV6); | |
683 | if (IS_ERR(lpm_tree)) { | |
684 | err = PTR_ERR(lpm_tree); | |
685 | goto err_ipv6_tree_get; | |
686 | } | |
687 | mlxsw_sp->router->lpm.proto_trees[MLXSW_SP_L3_PROTO_IPV6] = lpm_tree; | |
688 | ||
8494ab06 | 689 | return 0; |
2b52ce02 IS |
690 | |
691 | err_ipv6_tree_get: | |
692 | lpm_tree = mlxsw_sp->router->lpm.proto_trees[MLXSW_SP_L3_PROTO_IPV4]; | |
693 | mlxsw_sp_lpm_tree_put(mlxsw_sp, lpm_tree); | |
694 | err_ipv4_tree_get: | |
695 | kfree(mlxsw_sp->router->lpm.trees); | |
696 | return err; | |
8494ab06 IS |
697 | } |
698 | ||
699 | static void mlxsw_sp_lpm_fini(struct mlxsw_sp *mlxsw_sp) | |
700 | { | |
2b52ce02 IS |
701 | struct mlxsw_sp_lpm_tree *lpm_tree; |
702 | ||
703 | lpm_tree = mlxsw_sp->router->lpm.proto_trees[MLXSW_SP_L3_PROTO_IPV6]; | |
704 | mlxsw_sp_lpm_tree_put(mlxsw_sp, lpm_tree); | |
705 | ||
706 | lpm_tree = mlxsw_sp->router->lpm.proto_trees[MLXSW_SP_L3_PROTO_IPV4]; | |
707 | mlxsw_sp_lpm_tree_put(mlxsw_sp, lpm_tree); | |
708 | ||
9011b677 | 709 | kfree(mlxsw_sp->router->lpm.trees); |
53342023 JP |
710 | } |
711 | ||
76610ebb IS |
712 | static bool mlxsw_sp_vr_is_used(const struct mlxsw_sp_vr *vr) |
713 | { | |
d42b0965 | 714 | return !!vr->fib4 || !!vr->fib6 || !!vr->mr4_table; |
76610ebb IS |
715 | } |
716 | ||
6b75c480 JP |
717 | static struct mlxsw_sp_vr *mlxsw_sp_vr_find_unused(struct mlxsw_sp *mlxsw_sp) |
718 | { | |
719 | struct mlxsw_sp_vr *vr; | |
720 | int i; | |
721 | ||
c1a38311 | 722 | for (i = 0; i < MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_VRS); i++) { |
9011b677 | 723 | vr = &mlxsw_sp->router->vrs[i]; |
76610ebb | 724 | if (!mlxsw_sp_vr_is_used(vr)) |
6b75c480 JP |
725 | return vr; |
726 | } | |
727 | return NULL; | |
728 | } | |
729 | ||
730 | static int mlxsw_sp_vr_lpm_tree_bind(struct mlxsw_sp *mlxsw_sp, | |
0adb214b | 731 | const struct mlxsw_sp_fib *fib, u8 tree_id) |
6b75c480 JP |
732 | { |
733 | char raltb_pl[MLXSW_REG_RALTB_LEN]; | |
734 | ||
76610ebb IS |
735 | mlxsw_reg_raltb_pack(raltb_pl, fib->vr->id, |
736 | (enum mlxsw_reg_ralxx_protocol) fib->proto, | |
0adb214b | 737 | tree_id); |
6b75c480 JP |
738 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(raltb), raltb_pl); |
739 | } | |
740 | ||
741 | static int mlxsw_sp_vr_lpm_tree_unbind(struct mlxsw_sp *mlxsw_sp, | |
76610ebb | 742 | const struct mlxsw_sp_fib *fib) |
6b75c480 JP |
743 | { |
744 | char raltb_pl[MLXSW_REG_RALTB_LEN]; | |
745 | ||
746 | /* Bind to tree 0 which is default */ | |
76610ebb IS |
747 | mlxsw_reg_raltb_pack(raltb_pl, fib->vr->id, |
748 | (enum mlxsw_reg_ralxx_protocol) fib->proto, 0); | |
6b75c480 JP |
749 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(raltb), raltb_pl); |
750 | } | |
751 | ||
752 | static u32 mlxsw_sp_fix_tb_id(u32 tb_id) | |
753 | { | |
7e50d435 YG |
754 | /* For our purpose, squash main, default and local tables into one */ |
755 | if (tb_id == RT_TABLE_LOCAL || tb_id == RT_TABLE_DEFAULT) | |
6b75c480 JP |
756 | tb_id = RT_TABLE_MAIN; |
757 | return tb_id; | |
758 | } | |
759 | ||
760 | static struct mlxsw_sp_vr *mlxsw_sp_vr_find(struct mlxsw_sp *mlxsw_sp, | |
76610ebb | 761 | u32 tb_id) |
6b75c480 JP |
762 | { |
763 | struct mlxsw_sp_vr *vr; | |
764 | int i; | |
765 | ||
766 | tb_id = mlxsw_sp_fix_tb_id(tb_id); | |
9497c042 | 767 | |
c1a38311 | 768 | for (i = 0; i < MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_VRS); i++) { |
9011b677 | 769 | vr = &mlxsw_sp->router->vrs[i]; |
76610ebb | 770 | if (mlxsw_sp_vr_is_used(vr) && vr->tb_id == tb_id) |
6b75c480 JP |
771 | return vr; |
772 | } | |
773 | return NULL; | |
774 | } | |
775 | ||
76610ebb IS |
776 | static struct mlxsw_sp_fib *mlxsw_sp_vr_fib(const struct mlxsw_sp_vr *vr, |
777 | enum mlxsw_sp_l3proto proto) | |
778 | { | |
779 | switch (proto) { | |
780 | case MLXSW_SP_L3_PROTO_IPV4: | |
781 | return vr->fib4; | |
782 | case MLXSW_SP_L3_PROTO_IPV6: | |
a3d9bc50 | 783 | return vr->fib6; |
76610ebb IS |
784 | } |
785 | return NULL; | |
786 | } | |
787 | ||
6b75c480 | 788 | static struct mlxsw_sp_vr *mlxsw_sp_vr_create(struct mlxsw_sp *mlxsw_sp, |
f8fa9b4e DA |
789 | u32 tb_id, |
790 | struct netlink_ext_ack *extack) | |
6b75c480 | 791 | { |
0f2d2b27 JP |
792 | struct mlxsw_sp_mr_table *mr4_table; |
793 | struct mlxsw_sp_fib *fib4; | |
794 | struct mlxsw_sp_fib *fib6; | |
6b75c480 | 795 | struct mlxsw_sp_vr *vr; |
a3d9bc50 | 796 | int err; |
6b75c480 JP |
797 | |
798 | vr = mlxsw_sp_vr_find_unused(mlxsw_sp); | |
f8fa9b4e | 799 | if (!vr) { |
6c677750 | 800 | NL_SET_ERR_MSG_MOD(extack, "Exceeded number of supported virtual routers"); |
6b75c480 | 801 | return ERR_PTR(-EBUSY); |
f8fa9b4e | 802 | } |
0f2d2b27 JP |
803 | fib4 = mlxsw_sp_fib_create(mlxsw_sp, vr, MLXSW_SP_L3_PROTO_IPV4); |
804 | if (IS_ERR(fib4)) | |
805 | return ERR_CAST(fib4); | |
806 | fib6 = mlxsw_sp_fib_create(mlxsw_sp, vr, MLXSW_SP_L3_PROTO_IPV6); | |
807 | if (IS_ERR(fib6)) { | |
808 | err = PTR_ERR(fib6); | |
a3d9bc50 IS |
809 | goto err_fib6_create; |
810 | } | |
0f2d2b27 JP |
811 | mr4_table = mlxsw_sp_mr_table_create(mlxsw_sp, vr->id, |
812 | MLXSW_SP_L3_PROTO_IPV4); | |
813 | if (IS_ERR(mr4_table)) { | |
814 | err = PTR_ERR(mr4_table); | |
d42b0965 YG |
815 | goto err_mr_table_create; |
816 | } | |
0f2d2b27 JP |
817 | vr->fib4 = fib4; |
818 | vr->fib6 = fib6; | |
819 | vr->mr4_table = mr4_table; | |
6b75c480 | 820 | vr->tb_id = tb_id; |
6b75c480 | 821 | return vr; |
a3d9bc50 | 822 | |
d42b0965 | 823 | err_mr_table_create: |
0f2d2b27 | 824 | mlxsw_sp_fib_destroy(mlxsw_sp, fib6); |
a3d9bc50 | 825 | err_fib6_create: |
0f2d2b27 | 826 | mlxsw_sp_fib_destroy(mlxsw_sp, fib4); |
a3d9bc50 | 827 | return ERR_PTR(err); |
6b75c480 JP |
828 | } |
829 | ||
2b52ce02 IS |
830 | static void mlxsw_sp_vr_destroy(struct mlxsw_sp *mlxsw_sp, |
831 | struct mlxsw_sp_vr *vr) | |
6b75c480 | 832 | { |
d42b0965 YG |
833 | mlxsw_sp_mr_table_destroy(vr->mr4_table); |
834 | vr->mr4_table = NULL; | |
2b52ce02 | 835 | mlxsw_sp_fib_destroy(mlxsw_sp, vr->fib6); |
a3d9bc50 | 836 | vr->fib6 = NULL; |
2b52ce02 | 837 | mlxsw_sp_fib_destroy(mlxsw_sp, vr->fib4); |
76610ebb | 838 | vr->fib4 = NULL; |
6b75c480 JP |
839 | } |
840 | ||
f8fa9b4e DA |
841 | static struct mlxsw_sp_vr *mlxsw_sp_vr_get(struct mlxsw_sp *mlxsw_sp, u32 tb_id, |
842 | struct netlink_ext_ack *extack) | |
6b75c480 JP |
843 | { |
844 | struct mlxsw_sp_vr *vr; | |
6b75c480 JP |
845 | |
846 | tb_id = mlxsw_sp_fix_tb_id(tb_id); | |
76610ebb IS |
847 | vr = mlxsw_sp_vr_find(mlxsw_sp, tb_id); |
848 | if (!vr) | |
f8fa9b4e | 849 | vr = mlxsw_sp_vr_create(mlxsw_sp, tb_id, extack); |
6b75c480 JP |
850 | return vr; |
851 | } | |
852 | ||
2b52ce02 | 853 | static void mlxsw_sp_vr_put(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_vr *vr) |
6b75c480 | 854 | { |
a3d9bc50 | 855 | if (!vr->rif_count && list_empty(&vr->fib4->node_list) && |
d42b0965 YG |
856 | list_empty(&vr->fib6->node_list) && |
857 | mlxsw_sp_mr_table_empty(vr->mr4_table)) | |
2b52ce02 | 858 | mlxsw_sp_vr_destroy(mlxsw_sp, vr); |
6b75c480 JP |
859 | } |
860 | ||
fc922bb0 IS |
861 | static bool |
862 | mlxsw_sp_vr_lpm_tree_should_replace(struct mlxsw_sp_vr *vr, | |
863 | enum mlxsw_sp_l3proto proto, u8 tree_id) | |
864 | { | |
865 | struct mlxsw_sp_fib *fib = mlxsw_sp_vr_fib(vr, proto); | |
866 | ||
867 | if (!mlxsw_sp_vr_is_used(vr)) | |
868 | return false; | |
2b52ce02 | 869 | if (fib->lpm_tree->id == tree_id) |
fc922bb0 IS |
870 | return true; |
871 | return false; | |
872 | } | |
873 | ||
874 | static int mlxsw_sp_vr_lpm_tree_replace(struct mlxsw_sp *mlxsw_sp, | |
875 | struct mlxsw_sp_fib *fib, | |
876 | struct mlxsw_sp_lpm_tree *new_tree) | |
877 | { | |
878 | struct mlxsw_sp_lpm_tree *old_tree = fib->lpm_tree; | |
879 | int err; | |
880 | ||
fc922bb0 IS |
881 | fib->lpm_tree = new_tree; |
882 | mlxsw_sp_lpm_tree_hold(new_tree); | |
ed604c5d IS |
883 | err = mlxsw_sp_vr_lpm_tree_bind(mlxsw_sp, fib, new_tree->id); |
884 | if (err) | |
885 | goto err_tree_bind; | |
fc922bb0 IS |
886 | mlxsw_sp_lpm_tree_put(mlxsw_sp, old_tree); |
887 | return 0; | |
ed604c5d IS |
888 | |
889 | err_tree_bind: | |
890 | mlxsw_sp_lpm_tree_put(mlxsw_sp, new_tree); | |
891 | fib->lpm_tree = old_tree; | |
892 | return err; | |
fc922bb0 IS |
893 | } |
894 | ||
895 | static int mlxsw_sp_vrs_lpm_tree_replace(struct mlxsw_sp *mlxsw_sp, | |
896 | struct mlxsw_sp_fib *fib, | |
897 | struct mlxsw_sp_lpm_tree *new_tree) | |
898 | { | |
fc922bb0 | 899 | enum mlxsw_sp_l3proto proto = fib->proto; |
2b52ce02 | 900 | struct mlxsw_sp_lpm_tree *old_tree; |
fc922bb0 IS |
901 | u8 old_id, new_id = new_tree->id; |
902 | struct mlxsw_sp_vr *vr; | |
903 | int i, err; | |
904 | ||
2b52ce02 | 905 | old_tree = mlxsw_sp->router->lpm.proto_trees[proto]; |
fc922bb0 IS |
906 | old_id = old_tree->id; |
907 | ||
908 | for (i = 0; i < MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_VRS); i++) { | |
909 | vr = &mlxsw_sp->router->vrs[i]; | |
910 | if (!mlxsw_sp_vr_lpm_tree_should_replace(vr, proto, old_id)) | |
911 | continue; | |
912 | err = mlxsw_sp_vr_lpm_tree_replace(mlxsw_sp, | |
913 | mlxsw_sp_vr_fib(vr, proto), | |
914 | new_tree); | |
915 | if (err) | |
916 | goto err_tree_replace; | |
917 | } | |
918 | ||
2b52ce02 IS |
919 | memcpy(new_tree->prefix_ref_count, old_tree->prefix_ref_count, |
920 | sizeof(new_tree->prefix_ref_count)); | |
921 | mlxsw_sp->router->lpm.proto_trees[proto] = new_tree; | |
922 | mlxsw_sp_lpm_tree_put(mlxsw_sp, old_tree); | |
923 | ||
fc922bb0 IS |
924 | return 0; |
925 | ||
926 | err_tree_replace: | |
927 | for (i--; i >= 0; i--) { | |
928 | if (!mlxsw_sp_vr_lpm_tree_should_replace(vr, proto, new_id)) | |
929 | continue; | |
930 | mlxsw_sp_vr_lpm_tree_replace(mlxsw_sp, | |
931 | mlxsw_sp_vr_fib(vr, proto), | |
932 | old_tree); | |
933 | } | |
934 | return err; | |
fc922bb0 IS |
935 | } |
936 | ||
9497c042 | 937 | static int mlxsw_sp_vrs_init(struct mlxsw_sp *mlxsw_sp) |
6b75c480 JP |
938 | { |
939 | struct mlxsw_sp_vr *vr; | |
c1a38311 | 940 | u64 max_vrs; |
6b75c480 JP |
941 | int i; |
942 | ||
c1a38311 | 943 | if (!MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_VRS)) |
9497c042 NF |
944 | return -EIO; |
945 | ||
c1a38311 | 946 | max_vrs = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_VRS); |
9011b677 IS |
947 | mlxsw_sp->router->vrs = kcalloc(max_vrs, sizeof(struct mlxsw_sp_vr), |
948 | GFP_KERNEL); | |
949 | if (!mlxsw_sp->router->vrs) | |
9497c042 NF |
950 | return -ENOMEM; |
951 | ||
c1a38311 | 952 | for (i = 0; i < max_vrs; i++) { |
9011b677 | 953 | vr = &mlxsw_sp->router->vrs[i]; |
6b75c480 JP |
954 | vr->id = i; |
955 | } | |
9497c042 NF |
956 | |
957 | return 0; | |
958 | } | |
959 | ||
ac571de9 IS |
960 | static void mlxsw_sp_router_fib_flush(struct mlxsw_sp *mlxsw_sp); |
961 | ||
9497c042 NF |
962 | static void mlxsw_sp_vrs_fini(struct mlxsw_sp *mlxsw_sp) |
963 | { | |
3057224e IS |
964 | /* At this stage we're guaranteed not to have new incoming |
965 | * FIB notifications and the work queue is free from FIBs | |
966 | * sitting on top of mlxsw netdevs. However, we can still | |
967 | * have other FIBs queued. Flush the queue before flushing | |
968 | * the device's tables. No need for locks, as we're the only | |
969 | * writer. | |
970 | */ | |
971 | mlxsw_core_flush_owq(); | |
ac571de9 | 972 | mlxsw_sp_router_fib_flush(mlxsw_sp); |
9011b677 | 973 | kfree(mlxsw_sp->router->vrs); |
6b75c480 JP |
974 | } |
975 | ||
6ddb7426 PM |
976 | static struct net_device * |
977 | __mlxsw_sp_ipip_netdev_ul_dev_get(const struct net_device *ol_dev) | |
978 | { | |
979 | struct ip_tunnel *tun = netdev_priv(ol_dev); | |
980 | struct net *net = dev_net(ol_dev); | |
981 | ||
982 | return __dev_get_by_index(net, tun->parms.link); | |
983 | } | |
984 | ||
4cf04f3f | 985 | u32 mlxsw_sp_ipip_dev_ul_tb_id(const struct net_device *ol_dev) |
6ddb7426 PM |
986 | { |
987 | struct net_device *d = __mlxsw_sp_ipip_netdev_ul_dev_get(ol_dev); | |
988 | ||
989 | if (d) | |
990 | return l3mdev_fib_table(d) ? : RT_TABLE_MAIN; | |
991 | else | |
992 | return l3mdev_fib_table(ol_dev) ? : RT_TABLE_MAIN; | |
993 | } | |
994 | ||
1012b9ac PM |
995 | static struct mlxsw_sp_rif * |
996 | mlxsw_sp_rif_create(struct mlxsw_sp *mlxsw_sp, | |
f8fa9b4e DA |
997 | const struct mlxsw_sp_rif_params *params, |
998 | struct netlink_ext_ack *extack); | |
1012b9ac PM |
999 | |
1000 | static struct mlxsw_sp_rif_ipip_lb * | |
1001 | mlxsw_sp_ipip_ol_ipip_lb_create(struct mlxsw_sp *mlxsw_sp, | |
1002 | enum mlxsw_sp_ipip_type ipipt, | |
7e75af63 PM |
1003 | struct net_device *ol_dev, |
1004 | struct netlink_ext_ack *extack) | |
1012b9ac PM |
1005 | { |
1006 | struct mlxsw_sp_rif_params_ipip_lb lb_params; | |
1007 | const struct mlxsw_sp_ipip_ops *ipip_ops; | |
1008 | struct mlxsw_sp_rif *rif; | |
1009 | ||
1010 | ipip_ops = mlxsw_sp->router->ipip_ops_arr[ipipt]; | |
1011 | lb_params = (struct mlxsw_sp_rif_params_ipip_lb) { | |
1012 | .common.dev = ol_dev, | |
1013 | .common.lag = false, | |
1014 | .lb_config = ipip_ops->ol_loopback_config(mlxsw_sp, ol_dev), | |
1015 | }; | |
1016 | ||
7e75af63 | 1017 | rif = mlxsw_sp_rif_create(mlxsw_sp, &lb_params.common, extack); |
1012b9ac PM |
1018 | if (IS_ERR(rif)) |
1019 | return ERR_CAST(rif); | |
1020 | return container_of(rif, struct mlxsw_sp_rif_ipip_lb, common); | |
1021 | } | |
1022 | ||
1023 | static struct mlxsw_sp_ipip_entry * | |
1024 | mlxsw_sp_ipip_entry_alloc(struct mlxsw_sp *mlxsw_sp, | |
1025 | enum mlxsw_sp_ipip_type ipipt, | |
1026 | struct net_device *ol_dev) | |
1027 | { | |
e437f3b6 | 1028 | const struct mlxsw_sp_ipip_ops *ipip_ops; |
1012b9ac PM |
1029 | struct mlxsw_sp_ipip_entry *ipip_entry; |
1030 | struct mlxsw_sp_ipip_entry *ret = NULL; | |
1031 | ||
e437f3b6 | 1032 | ipip_ops = mlxsw_sp->router->ipip_ops_arr[ipipt]; |
1012b9ac PM |
1033 | ipip_entry = kzalloc(sizeof(*ipip_entry), GFP_KERNEL); |
1034 | if (!ipip_entry) | |
1035 | return ERR_PTR(-ENOMEM); | |
1036 | ||
1037 | ipip_entry->ol_lb = mlxsw_sp_ipip_ol_ipip_lb_create(mlxsw_sp, ipipt, | |
7e75af63 | 1038 | ol_dev, NULL); |
1012b9ac PM |
1039 | if (IS_ERR(ipip_entry->ol_lb)) { |
1040 | ret = ERR_CAST(ipip_entry->ol_lb); | |
1041 | goto err_ol_ipip_lb_create; | |
1042 | } | |
1043 | ||
1044 | ipip_entry->ipipt = ipipt; | |
1045 | ipip_entry->ol_dev = ol_dev; | |
e437f3b6 PM |
1046 | |
1047 | switch (ipip_ops->ul_proto) { | |
1048 | case MLXSW_SP_L3_PROTO_IPV4: | |
1049 | ipip_entry->parms4 = mlxsw_sp_ipip_netdev_parms4(ol_dev); | |
1050 | break; | |
1051 | case MLXSW_SP_L3_PROTO_IPV6: | |
1052 | WARN_ON(1); | |
1053 | break; | |
1054 | } | |
1012b9ac PM |
1055 | |
1056 | return ipip_entry; | |
1057 | ||
1058 | err_ol_ipip_lb_create: | |
1059 | kfree(ipip_entry); | |
1060 | return ret; | |
1061 | } | |
1062 | ||
1063 | static void | |
4cccb737 | 1064 | mlxsw_sp_ipip_entry_dealloc(struct mlxsw_sp_ipip_entry *ipip_entry) |
1012b9ac | 1065 | { |
1012b9ac PM |
1066 | mlxsw_sp_rif_destroy(&ipip_entry->ol_lb->common); |
1067 | kfree(ipip_entry); | |
1068 | } | |
1069 | ||
1012b9ac PM |
1070 | static bool |
1071 | mlxsw_sp_ipip_entry_saddr_matches(struct mlxsw_sp *mlxsw_sp, | |
1072 | const enum mlxsw_sp_l3proto ul_proto, | |
1073 | union mlxsw_sp_l3addr saddr, | |
1074 | u32 ul_tb_id, | |
1075 | struct mlxsw_sp_ipip_entry *ipip_entry) | |
1076 | { | |
1077 | u32 tun_ul_tb_id = mlxsw_sp_ipip_dev_ul_tb_id(ipip_entry->ol_dev); | |
1078 | enum mlxsw_sp_ipip_type ipipt = ipip_entry->ipipt; | |
1079 | union mlxsw_sp_l3addr tun_saddr; | |
1080 | ||
1081 | if (mlxsw_sp->router->ipip_ops_arr[ipipt]->ul_proto != ul_proto) | |
1082 | return false; | |
1083 | ||
1084 | tun_saddr = mlxsw_sp_ipip_netdev_saddr(ul_proto, ipip_entry->ol_dev); | |
1085 | return tun_ul_tb_id == ul_tb_id && | |
1086 | mlxsw_sp_l3addr_eq(&tun_saddr, &saddr); | |
1087 | } | |
1088 | ||
4607f6d2 PM |
1089 | static int |
1090 | mlxsw_sp_fib_entry_decap_init(struct mlxsw_sp *mlxsw_sp, | |
1091 | struct mlxsw_sp_fib_entry *fib_entry, | |
1092 | struct mlxsw_sp_ipip_entry *ipip_entry) | |
1093 | { | |
1094 | u32 tunnel_index; | |
1095 | int err; | |
1096 | ||
1097 | err = mlxsw_sp_kvdl_alloc(mlxsw_sp, 1, &tunnel_index); | |
1098 | if (err) | |
1099 | return err; | |
1100 | ||
1101 | ipip_entry->decap_fib_entry = fib_entry; | |
1102 | fib_entry->decap.ipip_entry = ipip_entry; | |
1103 | fib_entry->decap.tunnel_index = tunnel_index; | |
1104 | return 0; | |
1105 | } | |
1106 | ||
1107 | static void mlxsw_sp_fib_entry_decap_fini(struct mlxsw_sp *mlxsw_sp, | |
1108 | struct mlxsw_sp_fib_entry *fib_entry) | |
1109 | { | |
1110 | /* Unlink this node from the IPIP entry that it's the decap entry of. */ | |
1111 | fib_entry->decap.ipip_entry->decap_fib_entry = NULL; | |
1112 | fib_entry->decap.ipip_entry = NULL; | |
1113 | mlxsw_sp_kvdl_free(mlxsw_sp, fib_entry->decap.tunnel_index); | |
1114 | } | |
1115 | ||
1cc38fb1 PM |
1116 | static struct mlxsw_sp_fib_node * |
1117 | mlxsw_sp_fib_node_lookup(struct mlxsw_sp_fib *fib, const void *addr, | |
1118 | size_t addr_len, unsigned char prefix_len); | |
4607f6d2 PM |
1119 | static int mlxsw_sp_fib_entry_update(struct mlxsw_sp *mlxsw_sp, |
1120 | struct mlxsw_sp_fib_entry *fib_entry); | |
1121 | ||
1122 | static void | |
1123 | mlxsw_sp_ipip_entry_demote_decap(struct mlxsw_sp *mlxsw_sp, | |
1124 | struct mlxsw_sp_ipip_entry *ipip_entry) | |
1125 | { | |
1126 | struct mlxsw_sp_fib_entry *fib_entry = ipip_entry->decap_fib_entry; | |
1127 | ||
1128 | mlxsw_sp_fib_entry_decap_fini(mlxsw_sp, fib_entry); | |
1129 | fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_TRAP; | |
1130 | ||
1131 | mlxsw_sp_fib_entry_update(mlxsw_sp, fib_entry); | |
1132 | } | |
1133 | ||
1cc38fb1 PM |
1134 | static void |
1135 | mlxsw_sp_ipip_entry_promote_decap(struct mlxsw_sp *mlxsw_sp, | |
1136 | struct mlxsw_sp_ipip_entry *ipip_entry, | |
1137 | struct mlxsw_sp_fib_entry *decap_fib_entry) | |
1138 | { | |
1139 | if (mlxsw_sp_fib_entry_decap_init(mlxsw_sp, decap_fib_entry, | |
1140 | ipip_entry)) | |
1141 | return; | |
1142 | decap_fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_IPIP_DECAP; | |
1143 | ||
1144 | if (mlxsw_sp_fib_entry_update(mlxsw_sp, decap_fib_entry)) | |
1145 | mlxsw_sp_ipip_entry_demote_decap(mlxsw_sp, ipip_entry); | |
1146 | } | |
1147 | ||
1148 | /* Given an IPIP entry, find the corresponding decap route. */ | |
1149 | static struct mlxsw_sp_fib_entry * | |
1150 | mlxsw_sp_ipip_entry_find_decap(struct mlxsw_sp *mlxsw_sp, | |
1151 | struct mlxsw_sp_ipip_entry *ipip_entry) | |
1152 | { | |
1153 | static struct mlxsw_sp_fib_node *fib_node; | |
1154 | const struct mlxsw_sp_ipip_ops *ipip_ops; | |
1155 | struct mlxsw_sp_fib_entry *fib_entry; | |
1156 | unsigned char saddr_prefix_len; | |
1157 | union mlxsw_sp_l3addr saddr; | |
1158 | struct mlxsw_sp_fib *ul_fib; | |
1159 | struct mlxsw_sp_vr *ul_vr; | |
1160 | const void *saddrp; | |
1161 | size_t saddr_len; | |
1162 | u32 ul_tb_id; | |
1163 | u32 saddr4; | |
1164 | ||
1165 | ipip_ops = mlxsw_sp->router->ipip_ops_arr[ipip_entry->ipipt]; | |
1166 | ||
1167 | ul_tb_id = mlxsw_sp_ipip_dev_ul_tb_id(ipip_entry->ol_dev); | |
1168 | ul_vr = mlxsw_sp_vr_find(mlxsw_sp, ul_tb_id); | |
1169 | if (!ul_vr) | |
1170 | return NULL; | |
1171 | ||
1172 | ul_fib = mlxsw_sp_vr_fib(ul_vr, ipip_ops->ul_proto); | |
1173 | saddr = mlxsw_sp_ipip_netdev_saddr(ipip_ops->ul_proto, | |
1174 | ipip_entry->ol_dev); | |
1175 | ||
1176 | switch (ipip_ops->ul_proto) { | |
1177 | case MLXSW_SP_L3_PROTO_IPV4: | |
1178 | saddr4 = be32_to_cpu(saddr.addr4); | |
1179 | saddrp = &saddr4; | |
1180 | saddr_len = 4; | |
1181 | saddr_prefix_len = 32; | |
1182 | break; | |
1183 | case MLXSW_SP_L3_PROTO_IPV6: | |
1184 | WARN_ON(1); | |
1185 | return NULL; | |
1186 | } | |
1187 | ||
1188 | fib_node = mlxsw_sp_fib_node_lookup(ul_fib, saddrp, saddr_len, | |
1189 | saddr_prefix_len); | |
1190 | if (!fib_node || list_empty(&fib_node->entry_list)) | |
1191 | return NULL; | |
1192 | ||
1193 | fib_entry = list_first_entry(&fib_node->entry_list, | |
1194 | struct mlxsw_sp_fib_entry, list); | |
1195 | if (fib_entry->type != MLXSW_SP_FIB_ENTRY_TYPE_TRAP) | |
1196 | return NULL; | |
1197 | ||
1198 | return fib_entry; | |
1199 | } | |
1200 | ||
1012b9ac | 1201 | static struct mlxsw_sp_ipip_entry * |
4cccb737 PM |
1202 | mlxsw_sp_ipip_entry_create(struct mlxsw_sp *mlxsw_sp, |
1203 | enum mlxsw_sp_ipip_type ipipt, | |
1204 | struct net_device *ol_dev) | |
1012b9ac | 1205 | { |
1012b9ac | 1206 | struct mlxsw_sp_ipip_entry *ipip_entry; |
1012b9ac PM |
1207 | |
1208 | ipip_entry = mlxsw_sp_ipip_entry_alloc(mlxsw_sp, ipipt, ol_dev); | |
1209 | if (IS_ERR(ipip_entry)) | |
1210 | return ipip_entry; | |
1211 | ||
1212 | list_add_tail(&ipip_entry->ipip_list_node, | |
1213 | &mlxsw_sp->router->ipip_list); | |
1214 | ||
1012b9ac PM |
1215 | return ipip_entry; |
1216 | } | |
1217 | ||
1218 | static void | |
4cccb737 PM |
1219 | mlxsw_sp_ipip_entry_destroy(struct mlxsw_sp *mlxsw_sp, |
1220 | struct mlxsw_sp_ipip_entry *ipip_entry) | |
1012b9ac | 1221 | { |
4cccb737 PM |
1222 | list_del(&ipip_entry->ipip_list_node); |
1223 | mlxsw_sp_ipip_entry_dealloc(ipip_entry); | |
1012b9ac PM |
1224 | } |
1225 | ||
4607f6d2 PM |
1226 | static bool |
1227 | mlxsw_sp_ipip_entry_matches_decap(struct mlxsw_sp *mlxsw_sp, | |
1228 | const struct net_device *ul_dev, | |
1229 | enum mlxsw_sp_l3proto ul_proto, | |
1230 | union mlxsw_sp_l3addr ul_dip, | |
1231 | struct mlxsw_sp_ipip_entry *ipip_entry) | |
1232 | { | |
1233 | u32 ul_tb_id = l3mdev_fib_table(ul_dev) ? : RT_TABLE_MAIN; | |
1234 | enum mlxsw_sp_ipip_type ipipt = ipip_entry->ipipt; | |
1235 | struct net_device *ipip_ul_dev; | |
1236 | ||
1237 | if (mlxsw_sp->router->ipip_ops_arr[ipipt]->ul_proto != ul_proto) | |
1238 | return false; | |
1239 | ||
1240 | ipip_ul_dev = __mlxsw_sp_ipip_netdev_ul_dev_get(ipip_entry->ol_dev); | |
1241 | return mlxsw_sp_ipip_entry_saddr_matches(mlxsw_sp, ul_proto, ul_dip, | |
1242 | ul_tb_id, ipip_entry) && | |
1243 | (!ipip_ul_dev || ipip_ul_dev == ul_dev); | |
1244 | } | |
1245 | ||
1246 | /* Given decap parameters, find the corresponding IPIP entry. */ | |
1247 | static struct mlxsw_sp_ipip_entry * | |
1248 | mlxsw_sp_ipip_entry_find_by_decap(struct mlxsw_sp *mlxsw_sp, | |
1249 | const struct net_device *ul_dev, | |
1250 | enum mlxsw_sp_l3proto ul_proto, | |
1251 | union mlxsw_sp_l3addr ul_dip) | |
1252 | { | |
1253 | struct mlxsw_sp_ipip_entry *ipip_entry; | |
1254 | ||
1255 | list_for_each_entry(ipip_entry, &mlxsw_sp->router->ipip_list, | |
1256 | ipip_list_node) | |
1257 | if (mlxsw_sp_ipip_entry_matches_decap(mlxsw_sp, ul_dev, | |
1258 | ul_proto, ul_dip, | |
1259 | ipip_entry)) | |
1260 | return ipip_entry; | |
1261 | ||
1262 | return NULL; | |
1263 | } | |
1264 | ||
6698c168 PM |
1265 | static bool mlxsw_sp_netdev_ipip_type(const struct mlxsw_sp *mlxsw_sp, |
1266 | const struct net_device *dev, | |
1267 | enum mlxsw_sp_ipip_type *p_type) | |
1268 | { | |
1269 | struct mlxsw_sp_router *router = mlxsw_sp->router; | |
1270 | const struct mlxsw_sp_ipip_ops *ipip_ops; | |
1271 | enum mlxsw_sp_ipip_type ipipt; | |
1272 | ||
1273 | for (ipipt = 0; ipipt < MLXSW_SP_IPIP_TYPE_MAX; ++ipipt) { | |
1274 | ipip_ops = router->ipip_ops_arr[ipipt]; | |
1275 | if (dev->type == ipip_ops->dev_type) { | |
1276 | if (p_type) | |
1277 | *p_type = ipipt; | |
1278 | return true; | |
1279 | } | |
1280 | } | |
1281 | return false; | |
1282 | } | |
1283 | ||
796ec776 PM |
1284 | bool mlxsw_sp_netdev_is_ipip_ol(const struct mlxsw_sp *mlxsw_sp, |
1285 | const struct net_device *dev) | |
0063587d PM |
1286 | { |
1287 | return mlxsw_sp_netdev_ipip_type(mlxsw_sp, dev, NULL); | |
1288 | } | |
1289 | ||
1290 | static struct mlxsw_sp_ipip_entry * | |
1291 | mlxsw_sp_ipip_entry_find_by_ol_dev(struct mlxsw_sp *mlxsw_sp, | |
1292 | const struct net_device *ol_dev) | |
1293 | { | |
1294 | struct mlxsw_sp_ipip_entry *ipip_entry; | |
1295 | ||
1296 | list_for_each_entry(ipip_entry, &mlxsw_sp->router->ipip_list, | |
1297 | ipip_list_node) | |
1298 | if (ipip_entry->ol_dev == ol_dev) | |
1299 | return ipip_entry; | |
1300 | ||
1301 | return NULL; | |
1302 | } | |
1303 | ||
61481f2f PM |
1304 | static struct mlxsw_sp_ipip_entry * |
1305 | mlxsw_sp_ipip_entry_find_by_ul_dev(const struct mlxsw_sp *mlxsw_sp, | |
1306 | const struct net_device *ul_dev, | |
1307 | struct mlxsw_sp_ipip_entry *start) | |
1308 | { | |
1309 | struct mlxsw_sp_ipip_entry *ipip_entry; | |
1310 | ||
1311 | ipip_entry = list_prepare_entry(start, &mlxsw_sp->router->ipip_list, | |
1312 | ipip_list_node); | |
1313 | list_for_each_entry_continue(ipip_entry, &mlxsw_sp->router->ipip_list, | |
1314 | ipip_list_node) { | |
1315 | struct net_device *ipip_ul_dev = | |
1316 | __mlxsw_sp_ipip_netdev_ul_dev_get(ipip_entry->ol_dev); | |
1317 | ||
1318 | if (ipip_ul_dev == ul_dev) | |
1319 | return ipip_entry; | |
1320 | } | |
1321 | ||
1322 | return NULL; | |
1323 | } | |
1324 | ||
1325 | bool mlxsw_sp_netdev_is_ipip_ul(const struct mlxsw_sp *mlxsw_sp, | |
1326 | const struct net_device *dev) | |
1327 | { | |
1328 | return mlxsw_sp_ipip_entry_find_by_ul_dev(mlxsw_sp, dev, NULL); | |
1329 | } | |
1330 | ||
cafdb2a0 PM |
1331 | static bool mlxsw_sp_netdevice_ipip_can_offload(struct mlxsw_sp *mlxsw_sp, |
1332 | const struct net_device *ol_dev, | |
1333 | enum mlxsw_sp_ipip_type ipipt) | |
1334 | { | |
1335 | const struct mlxsw_sp_ipip_ops *ops | |
1336 | = mlxsw_sp->router->ipip_ops_arr[ipipt]; | |
1337 | ||
1338 | /* For deciding whether decap should be offloaded, we don't care about | |
1339 | * overlay protocol, so ask whether either one is supported. | |
1340 | */ | |
1341 | return ops->can_offload(mlxsw_sp, ol_dev, MLXSW_SP_L3_PROTO_IPV4) || | |
1342 | ops->can_offload(mlxsw_sp, ol_dev, MLXSW_SP_L3_PROTO_IPV6); | |
1343 | } | |
1344 | ||
796ec776 PM |
1345 | static int mlxsw_sp_netdevice_ipip_ol_reg_event(struct mlxsw_sp *mlxsw_sp, |
1346 | struct net_device *ol_dev) | |
0063587d | 1347 | { |
0063587d | 1348 | struct mlxsw_sp_ipip_entry *ipip_entry; |
af641713 | 1349 | enum mlxsw_sp_l3proto ul_proto; |
0063587d | 1350 | enum mlxsw_sp_ipip_type ipipt; |
af641713 PM |
1351 | union mlxsw_sp_l3addr saddr; |
1352 | u32 ul_tb_id; | |
0063587d PM |
1353 | |
1354 | mlxsw_sp_netdev_ipip_type(mlxsw_sp, ol_dev, &ipipt); | |
cafdb2a0 | 1355 | if (mlxsw_sp_netdevice_ipip_can_offload(mlxsw_sp, ol_dev, ipipt)) { |
af641713 PM |
1356 | ul_tb_id = mlxsw_sp_ipip_dev_ul_tb_id(ol_dev); |
1357 | ul_proto = mlxsw_sp->router->ipip_ops_arr[ipipt]->ul_proto; | |
1358 | saddr = mlxsw_sp_ipip_netdev_saddr(ul_proto, ol_dev); | |
1359 | if (!mlxsw_sp_ipip_demote_tunnel_by_saddr(mlxsw_sp, ul_proto, | |
1360 | saddr, ul_tb_id, | |
1361 | NULL)) { | |
1362 | ipip_entry = mlxsw_sp_ipip_entry_create(mlxsw_sp, ipipt, | |
1363 | ol_dev); | |
1364 | if (IS_ERR(ipip_entry)) | |
1365 | return PTR_ERR(ipip_entry); | |
1366 | } | |
0063587d PM |
1367 | } |
1368 | ||
1369 | return 0; | |
1370 | } | |
1371 | ||
796ec776 PM |
1372 | static void mlxsw_sp_netdevice_ipip_ol_unreg_event(struct mlxsw_sp *mlxsw_sp, |
1373 | struct net_device *ol_dev) | |
0063587d PM |
1374 | { |
1375 | struct mlxsw_sp_ipip_entry *ipip_entry; | |
1376 | ||
1377 | ipip_entry = mlxsw_sp_ipip_entry_find_by_ol_dev(mlxsw_sp, ol_dev); | |
1378 | if (ipip_entry) | |
4cccb737 | 1379 | mlxsw_sp_ipip_entry_destroy(mlxsw_sp, ipip_entry); |
0063587d PM |
1380 | } |
1381 | ||
47518ca5 PM |
1382 | static void |
1383 | mlxsw_sp_ipip_entry_ol_up_event(struct mlxsw_sp *mlxsw_sp, | |
1384 | struct mlxsw_sp_ipip_entry *ipip_entry) | |
1385 | { | |
1386 | struct mlxsw_sp_fib_entry *decap_fib_entry; | |
1387 | ||
1388 | decap_fib_entry = mlxsw_sp_ipip_entry_find_decap(mlxsw_sp, ipip_entry); | |
1389 | if (decap_fib_entry) | |
1390 | mlxsw_sp_ipip_entry_promote_decap(mlxsw_sp, ipip_entry, | |
1391 | decap_fib_entry); | |
1392 | } | |
1393 | ||
6d4de445 PM |
1394 | static void mlxsw_sp_netdevice_ipip_ol_up_event(struct mlxsw_sp *mlxsw_sp, |
1395 | struct net_device *ol_dev) | |
0063587d | 1396 | { |
0063587d PM |
1397 | struct mlxsw_sp_ipip_entry *ipip_entry; |
1398 | ||
1399 | ipip_entry = mlxsw_sp_ipip_entry_find_by_ol_dev(mlxsw_sp, ol_dev); | |
47518ca5 PM |
1400 | if (ipip_entry) |
1401 | mlxsw_sp_ipip_entry_ol_up_event(mlxsw_sp, ipip_entry); | |
0063587d PM |
1402 | } |
1403 | ||
a3fe198e PM |
1404 | static void |
1405 | mlxsw_sp_ipip_entry_ol_down_event(struct mlxsw_sp *mlxsw_sp, | |
1406 | struct mlxsw_sp_ipip_entry *ipip_entry) | |
1407 | { | |
1408 | if (ipip_entry->decap_fib_entry) | |
1409 | mlxsw_sp_ipip_entry_demote_decap(mlxsw_sp, ipip_entry); | |
1410 | } | |
1411 | ||
796ec776 PM |
1412 | static void mlxsw_sp_netdevice_ipip_ol_down_event(struct mlxsw_sp *mlxsw_sp, |
1413 | struct net_device *ol_dev) | |
0063587d PM |
1414 | { |
1415 | struct mlxsw_sp_ipip_entry *ipip_entry; | |
1416 | ||
1417 | ipip_entry = mlxsw_sp_ipip_entry_find_by_ol_dev(mlxsw_sp, ol_dev); | |
a3fe198e PM |
1418 | if (ipip_entry) |
1419 | mlxsw_sp_ipip_entry_ol_down_event(mlxsw_sp, ipip_entry); | |
0063587d PM |
1420 | } |
1421 | ||
09dbf629 PM |
1422 | static void mlxsw_sp_nexthop_rif_migrate(struct mlxsw_sp *mlxsw_sp, |
1423 | struct mlxsw_sp_rif *old_rif, | |
1424 | struct mlxsw_sp_rif *new_rif); | |
65a6121b PM |
1425 | static int |
1426 | mlxsw_sp_ipip_entry_ol_lb_update(struct mlxsw_sp *mlxsw_sp, | |
1427 | struct mlxsw_sp_ipip_entry *ipip_entry, | |
0c5f1cd5 | 1428 | bool keep_encap, |
65a6121b PM |
1429 | struct netlink_ext_ack *extack) |
1430 | { | |
1431 | struct mlxsw_sp_rif_ipip_lb *old_lb_rif = ipip_entry->ol_lb; | |
1432 | struct mlxsw_sp_rif_ipip_lb *new_lb_rif; | |
1433 | ||
1434 | new_lb_rif = mlxsw_sp_ipip_ol_ipip_lb_create(mlxsw_sp, | |
1435 | ipip_entry->ipipt, | |
1436 | ipip_entry->ol_dev, | |
1437 | extack); | |
1438 | if (IS_ERR(new_lb_rif)) | |
1439 | return PTR_ERR(new_lb_rif); | |
1440 | ipip_entry->ol_lb = new_lb_rif; | |
0c5f1cd5 | 1441 | |
09dbf629 PM |
1442 | if (keep_encap) |
1443 | mlxsw_sp_nexthop_rif_migrate(mlxsw_sp, &old_lb_rif->common, | |
1444 | &new_lb_rif->common); | |
0c5f1cd5 | 1445 | |
65a6121b | 1446 | mlxsw_sp_rif_destroy(&old_lb_rif->common); |
f63ce4e5 | 1447 | |
65a6121b PM |
1448 | return 0; |
1449 | } | |
1450 | ||
09dbf629 PM |
1451 | static void mlxsw_sp_nexthop_rif_update(struct mlxsw_sp *mlxsw_sp, |
1452 | struct mlxsw_sp_rif *rif); | |
1453 | ||
0c5f1cd5 PM |
1454 | /** |
1455 | * Update the offload related to an IPIP entry. This always updates decap, and | |
1456 | * in addition to that it also: | |
1457 | * @recreate_loopback: recreates the associated loopback RIF | |
1458 | * @keep_encap: updates next hops that use the tunnel netdevice. This is only | |
1459 | * relevant when recreate_loopback is true. | |
1460 | * @update_nexthops: updates next hops, keeping the current loopback RIF. This | |
1461 | * is only relevant when recreate_loopback is false. | |
1462 | */ | |
65a6121b PM |
1463 | int __mlxsw_sp_ipip_entry_update_tunnel(struct mlxsw_sp *mlxsw_sp, |
1464 | struct mlxsw_sp_ipip_entry *ipip_entry, | |
0c5f1cd5 PM |
1465 | bool recreate_loopback, |
1466 | bool keep_encap, | |
1467 | bool update_nexthops, | |
65a6121b PM |
1468 | struct netlink_ext_ack *extack) |
1469 | { | |
1470 | int err; | |
f63ce4e5 | 1471 | |
65a6121b PM |
1472 | /* RIFs can't be edited, so to update loopback, we need to destroy and |
1473 | * recreate it. That creates a window of opportunity where RALUE and | |
1474 | * RATR registers end up referencing a RIF that's already gone. RATRs | |
1475 | * are handled in mlxsw_sp_ipip_entry_ol_lb_update(), and to take care | |
f63ce4e5 PM |
1476 | * of RALUE, demote the decap route back. |
1477 | */ | |
1478 | if (ipip_entry->decap_fib_entry) | |
1479 | mlxsw_sp_ipip_entry_demote_decap(mlxsw_sp, ipip_entry); | |
1480 | ||
0c5f1cd5 PM |
1481 | if (recreate_loopback) { |
1482 | err = mlxsw_sp_ipip_entry_ol_lb_update(mlxsw_sp, ipip_entry, | |
1483 | keep_encap, extack); | |
1484 | if (err) | |
1485 | return err; | |
1486 | } else if (update_nexthops) { | |
1487 | mlxsw_sp_nexthop_rif_update(mlxsw_sp, | |
1488 | &ipip_entry->ol_lb->common); | |
1489 | } | |
65a6121b PM |
1490 | |
1491 | if (ipip_entry->ol_dev->flags & IFF_UP) | |
1492 | mlxsw_sp_ipip_entry_ol_up_event(mlxsw_sp, ipip_entry); | |
f63ce4e5 PM |
1493 | |
1494 | return 0; | |
1495 | } | |
1496 | ||
65a6121b PM |
1497 | static int mlxsw_sp_netdevice_ipip_ol_vrf_event(struct mlxsw_sp *mlxsw_sp, |
1498 | struct net_device *ol_dev, | |
1499 | struct netlink_ext_ack *extack) | |
1500 | { | |
1501 | struct mlxsw_sp_ipip_entry *ipip_entry = | |
1502 | mlxsw_sp_ipip_entry_find_by_ol_dev(mlxsw_sp, ol_dev); | |
cab43d9c PM |
1503 | enum mlxsw_sp_l3proto ul_proto; |
1504 | union mlxsw_sp_l3addr saddr; | |
1505 | u32 ul_tb_id; | |
65a6121b PM |
1506 | |
1507 | if (!ipip_entry) | |
1508 | return 0; | |
cab43d9c PM |
1509 | |
1510 | /* For flat configuration cases, moving overlay to a different VRF might | |
1511 | * cause local address conflict, and the conflicting tunnels need to be | |
1512 | * demoted. | |
1513 | */ | |
1514 | ul_tb_id = mlxsw_sp_ipip_dev_ul_tb_id(ol_dev); | |
1515 | ul_proto = mlxsw_sp->router->ipip_ops_arr[ipip_entry->ipipt]->ul_proto; | |
1516 | saddr = mlxsw_sp_ipip_netdev_saddr(ul_proto, ol_dev); | |
1517 | if (mlxsw_sp_ipip_demote_tunnel_by_saddr(mlxsw_sp, ul_proto, | |
1518 | saddr, ul_tb_id, | |
1519 | ipip_entry)) { | |
1520 | mlxsw_sp_ipip_entry_demote_tunnel(mlxsw_sp, ipip_entry); | |
1521 | return 0; | |
1522 | } | |
1523 | ||
65a6121b | 1524 | return __mlxsw_sp_ipip_entry_update_tunnel(mlxsw_sp, ipip_entry, |
0c5f1cd5 | 1525 | true, false, false, extack); |
65a6121b PM |
1526 | } |
1527 | ||
61481f2f PM |
1528 | static int |
1529 | mlxsw_sp_netdevice_ipip_ul_vrf_event(struct mlxsw_sp *mlxsw_sp, | |
1530 | struct mlxsw_sp_ipip_entry *ipip_entry, | |
1531 | struct net_device *ul_dev, | |
1532 | struct netlink_ext_ack *extack) | |
1533 | { | |
1534 | return __mlxsw_sp_ipip_entry_update_tunnel(mlxsw_sp, ipip_entry, | |
1535 | true, true, false, extack); | |
1536 | } | |
1537 | ||
44b0fff1 PM |
1538 | static int |
1539 | mlxsw_sp_netdevice_ipip_ul_up_event(struct mlxsw_sp *mlxsw_sp, | |
1540 | struct mlxsw_sp_ipip_entry *ipip_entry, | |
1541 | struct net_device *ul_dev) | |
1542 | { | |
1543 | return __mlxsw_sp_ipip_entry_update_tunnel(mlxsw_sp, ipip_entry, | |
1544 | false, false, true, NULL); | |
1545 | } | |
1546 | ||
1547 | static int | |
1548 | mlxsw_sp_netdevice_ipip_ul_down_event(struct mlxsw_sp *mlxsw_sp, | |
1549 | struct mlxsw_sp_ipip_entry *ipip_entry, | |
1550 | struct net_device *ul_dev) | |
1551 | { | |
1552 | /* A down underlay device causes encapsulated packets to not be | |
1553 | * forwarded, but decap still works. So refresh next hops without | |
1554 | * touching anything else. | |
1555 | */ | |
1556 | return __mlxsw_sp_ipip_entry_update_tunnel(mlxsw_sp, ipip_entry, | |
1557 | false, false, true, NULL); | |
1558 | } | |
1559 | ||
4cf04f3f PM |
1560 | static int |
1561 | mlxsw_sp_netdevice_ipip_ol_change_event(struct mlxsw_sp *mlxsw_sp, | |
1562 | struct net_device *ol_dev, | |
1563 | struct netlink_ext_ack *extack) | |
1564 | { | |
1565 | const struct mlxsw_sp_ipip_ops *ipip_ops; | |
1566 | struct mlxsw_sp_ipip_entry *ipip_entry; | |
1567 | int err; | |
1568 | ||
1569 | ipip_entry = mlxsw_sp_ipip_entry_find_by_ol_dev(mlxsw_sp, ol_dev); | |
1570 | if (!ipip_entry) | |
1571 | /* A change might make a tunnel eligible for offloading, but | |
1572 | * that is currently not implemented. What falls to slow path | |
1573 | * stays there. | |
1574 | */ | |
1575 | return 0; | |
1576 | ||
1577 | /* A change might make a tunnel not eligible for offloading. */ | |
1578 | if (!mlxsw_sp_netdevice_ipip_can_offload(mlxsw_sp, ol_dev, | |
1579 | ipip_entry->ipipt)) { | |
1580 | mlxsw_sp_ipip_entry_demote_tunnel(mlxsw_sp, ipip_entry); | |
1581 | return 0; | |
1582 | } | |
1583 | ||
1584 | ipip_ops = mlxsw_sp->router->ipip_ops_arr[ipip_entry->ipipt]; | |
1585 | err = ipip_ops->ol_netdev_change(mlxsw_sp, ipip_entry, extack); | |
1586 | return err; | |
1587 | } | |
1588 | ||
af641713 PM |
1589 | void mlxsw_sp_ipip_entry_demote_tunnel(struct mlxsw_sp *mlxsw_sp, |
1590 | struct mlxsw_sp_ipip_entry *ipip_entry) | |
1591 | { | |
1592 | struct net_device *ol_dev = ipip_entry->ol_dev; | |
1593 | ||
1594 | if (ol_dev->flags & IFF_UP) | |
1595 | mlxsw_sp_ipip_entry_ol_down_event(mlxsw_sp, ipip_entry); | |
1596 | mlxsw_sp_ipip_entry_destroy(mlxsw_sp, ipip_entry); | |
1597 | } | |
1598 | ||
1599 | /* The configuration where several tunnels have the same local address in the | |
1600 | * same underlay table needs special treatment in the HW. That is currently not | |
1601 | * implemented in the driver. This function finds and demotes the first tunnel | |
1602 | * with a given source address, except the one passed in in the argument | |
1603 | * `except'. | |
1604 | */ | |
1605 | bool | |
1606 | mlxsw_sp_ipip_demote_tunnel_by_saddr(struct mlxsw_sp *mlxsw_sp, | |
1607 | enum mlxsw_sp_l3proto ul_proto, | |
1608 | union mlxsw_sp_l3addr saddr, | |
1609 | u32 ul_tb_id, | |
1610 | const struct mlxsw_sp_ipip_entry *except) | |
1611 | { | |
1612 | struct mlxsw_sp_ipip_entry *ipip_entry, *tmp; | |
1613 | ||
1614 | list_for_each_entry_safe(ipip_entry, tmp, &mlxsw_sp->router->ipip_list, | |
1615 | ipip_list_node) { | |
1616 | if (ipip_entry != except && | |
1617 | mlxsw_sp_ipip_entry_saddr_matches(mlxsw_sp, ul_proto, saddr, | |
1618 | ul_tb_id, ipip_entry)) { | |
1619 | mlxsw_sp_ipip_entry_demote_tunnel(mlxsw_sp, ipip_entry); | |
1620 | return true; | |
1621 | } | |
1622 | } | |
1623 | ||
1624 | return false; | |
1625 | } | |
1626 | ||
61481f2f PM |
1627 | static void mlxsw_sp_ipip_demote_tunnel_by_ul_netdev(struct mlxsw_sp *mlxsw_sp, |
1628 | struct net_device *ul_dev) | |
1629 | { | |
1630 | struct mlxsw_sp_ipip_entry *ipip_entry, *tmp; | |
1631 | ||
1632 | list_for_each_entry_safe(ipip_entry, tmp, &mlxsw_sp->router->ipip_list, | |
1633 | ipip_list_node) { | |
1634 | struct net_device *ipip_ul_dev = | |
1635 | __mlxsw_sp_ipip_netdev_ul_dev_get(ipip_entry->ol_dev); | |
1636 | ||
1637 | if (ipip_ul_dev == ul_dev) | |
1638 | mlxsw_sp_ipip_entry_demote_tunnel(mlxsw_sp, ipip_entry); | |
1639 | } | |
1640 | } | |
1641 | ||
7e75af63 PM |
1642 | int mlxsw_sp_netdevice_ipip_ol_event(struct mlxsw_sp *mlxsw_sp, |
1643 | struct net_device *ol_dev, | |
1644 | unsigned long event, | |
1645 | struct netdev_notifier_info *info) | |
0063587d | 1646 | { |
7e75af63 PM |
1647 | struct netdev_notifier_changeupper_info *chup; |
1648 | struct netlink_ext_ack *extack; | |
1649 | ||
0063587d PM |
1650 | switch (event) { |
1651 | case NETDEV_REGISTER: | |
796ec776 | 1652 | return mlxsw_sp_netdevice_ipip_ol_reg_event(mlxsw_sp, ol_dev); |
0063587d | 1653 | case NETDEV_UNREGISTER: |
796ec776 | 1654 | mlxsw_sp_netdevice_ipip_ol_unreg_event(mlxsw_sp, ol_dev); |
0063587d PM |
1655 | return 0; |
1656 | case NETDEV_UP: | |
6d4de445 PM |
1657 | mlxsw_sp_netdevice_ipip_ol_up_event(mlxsw_sp, ol_dev); |
1658 | return 0; | |
0063587d | 1659 | case NETDEV_DOWN: |
796ec776 | 1660 | mlxsw_sp_netdevice_ipip_ol_down_event(mlxsw_sp, ol_dev); |
0063587d | 1661 | return 0; |
f63ce4e5 | 1662 | case NETDEV_CHANGEUPPER: |
7e75af63 PM |
1663 | chup = container_of(info, typeof(*chup), info); |
1664 | extack = info->extack; | |
1665 | if (netif_is_l3_master(chup->upper_dev)) | |
796ec776 | 1666 | return mlxsw_sp_netdevice_ipip_ol_vrf_event(mlxsw_sp, |
7e75af63 PM |
1667 | ol_dev, |
1668 | extack); | |
f63ce4e5 | 1669 | return 0; |
4cf04f3f PM |
1670 | case NETDEV_CHANGE: |
1671 | extack = info->extack; | |
1672 | return mlxsw_sp_netdevice_ipip_ol_change_event(mlxsw_sp, | |
1673 | ol_dev, extack); | |
0063587d PM |
1674 | } |
1675 | return 0; | |
1676 | } | |
1677 | ||
61481f2f PM |
1678 | static int |
1679 | __mlxsw_sp_netdevice_ipip_ul_event(struct mlxsw_sp *mlxsw_sp, | |
1680 | struct mlxsw_sp_ipip_entry *ipip_entry, | |
1681 | struct net_device *ul_dev, | |
1682 | unsigned long event, | |
1683 | struct netdev_notifier_info *info) | |
1684 | { | |
1685 | struct netdev_notifier_changeupper_info *chup; | |
1686 | struct netlink_ext_ack *extack; | |
1687 | ||
1688 | switch (event) { | |
1689 | case NETDEV_CHANGEUPPER: | |
1690 | chup = container_of(info, typeof(*chup), info); | |
1691 | extack = info->extack; | |
1692 | if (netif_is_l3_master(chup->upper_dev)) | |
1693 | return mlxsw_sp_netdevice_ipip_ul_vrf_event(mlxsw_sp, | |
1694 | ipip_entry, | |
1695 | ul_dev, | |
1696 | extack); | |
1697 | break; | |
44b0fff1 PM |
1698 | |
1699 | case NETDEV_UP: | |
1700 | return mlxsw_sp_netdevice_ipip_ul_up_event(mlxsw_sp, ipip_entry, | |
1701 | ul_dev); | |
1702 | case NETDEV_DOWN: | |
1703 | return mlxsw_sp_netdevice_ipip_ul_down_event(mlxsw_sp, | |
1704 | ipip_entry, | |
1705 | ul_dev); | |
61481f2f PM |
1706 | } |
1707 | return 0; | |
1708 | } | |
1709 | ||
1710 | int | |
1711 | mlxsw_sp_netdevice_ipip_ul_event(struct mlxsw_sp *mlxsw_sp, | |
1712 | struct net_device *ul_dev, | |
1713 | unsigned long event, | |
1714 | struct netdev_notifier_info *info) | |
1715 | { | |
1716 | struct mlxsw_sp_ipip_entry *ipip_entry = NULL; | |
1717 | int err; | |
1718 | ||
1719 | while ((ipip_entry = mlxsw_sp_ipip_entry_find_by_ul_dev(mlxsw_sp, | |
1720 | ul_dev, | |
1721 | ipip_entry))) { | |
1722 | err = __mlxsw_sp_netdevice_ipip_ul_event(mlxsw_sp, ipip_entry, | |
1723 | ul_dev, event, info); | |
1724 | if (err) { | |
1725 | mlxsw_sp_ipip_demote_tunnel_by_ul_netdev(mlxsw_sp, | |
1726 | ul_dev); | |
1727 | return err; | |
1728 | } | |
1729 | } | |
1730 | ||
1731 | return 0; | |
1732 | } | |
1733 | ||
6cf3c971 | 1734 | struct mlxsw_sp_neigh_key { |
33b1341c | 1735 | struct neighbour *n; |
6cf3c971 JP |
1736 | }; |
1737 | ||
1738 | struct mlxsw_sp_neigh_entry { | |
9665b745 | 1739 | struct list_head rif_list_node; |
6cf3c971 JP |
1740 | struct rhash_head ht_node; |
1741 | struct mlxsw_sp_neigh_key key; | |
1742 | u16 rif; | |
5c8802f1 | 1743 | bool connected; |
a6bf9e93 | 1744 | unsigned char ha[ETH_ALEN]; |
a7ff87ac JP |
1745 | struct list_head nexthop_list; /* list of nexthops using |
1746 | * this neigh entry | |
1747 | */ | |
b2157149 | 1748 | struct list_head nexthop_neighs_list_node; |
7cfcbc75 AS |
1749 | unsigned int counter_index; |
1750 | bool counter_valid; | |
6cf3c971 JP |
1751 | }; |
1752 | ||
1753 | static const struct rhashtable_params mlxsw_sp_neigh_ht_params = { | |
1754 | .key_offset = offsetof(struct mlxsw_sp_neigh_entry, key), | |
1755 | .head_offset = offsetof(struct mlxsw_sp_neigh_entry, ht_node), | |
1756 | .key_len = sizeof(struct mlxsw_sp_neigh_key), | |
1757 | }; | |
1758 | ||
f17cc84d AS |
1759 | struct mlxsw_sp_neigh_entry * |
1760 | mlxsw_sp_rif_neigh_next(struct mlxsw_sp_rif *rif, | |
1761 | struct mlxsw_sp_neigh_entry *neigh_entry) | |
1762 | { | |
1763 | if (!neigh_entry) { | |
1764 | if (list_empty(&rif->neigh_list)) | |
1765 | return NULL; | |
1766 | else | |
1767 | return list_first_entry(&rif->neigh_list, | |
1768 | typeof(*neigh_entry), | |
1769 | rif_list_node); | |
1770 | } | |
ec2437f4 | 1771 | if (list_is_last(&neigh_entry->rif_list_node, &rif->neigh_list)) |
f17cc84d AS |
1772 | return NULL; |
1773 | return list_next_entry(neigh_entry, rif_list_node); | |
1774 | } | |
1775 | ||
1776 | int mlxsw_sp_neigh_entry_type(struct mlxsw_sp_neigh_entry *neigh_entry) | |
1777 | { | |
1778 | return neigh_entry->key.n->tbl->family; | |
1779 | } | |
1780 | ||
1781 | unsigned char * | |
1782 | mlxsw_sp_neigh_entry_ha(struct mlxsw_sp_neigh_entry *neigh_entry) | |
1783 | { | |
1784 | return neigh_entry->ha; | |
1785 | } | |
1786 | ||
1787 | u32 mlxsw_sp_neigh4_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry) | |
1788 | { | |
1789 | struct neighbour *n; | |
1790 | ||
1791 | n = neigh_entry->key.n; | |
1792 | return ntohl(*((__be32 *) n->primary_key)); | |
1793 | } | |
1794 | ||
0250768c AS |
1795 | struct in6_addr * |
1796 | mlxsw_sp_neigh6_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry) | |
1797 | { | |
1798 | struct neighbour *n; | |
1799 | ||
1800 | n = neigh_entry->key.n; | |
1801 | return (struct in6_addr *) &n->primary_key; | |
1802 | } | |
1803 | ||
7cfcbc75 AS |
1804 | int mlxsw_sp_neigh_counter_get(struct mlxsw_sp *mlxsw_sp, |
1805 | struct mlxsw_sp_neigh_entry *neigh_entry, | |
1806 | u64 *p_counter) | |
1807 | { | |
1808 | if (!neigh_entry->counter_valid) | |
1809 | return -EINVAL; | |
1810 | ||
1811 | return mlxsw_sp_flow_counter_get(mlxsw_sp, neigh_entry->counter_index, | |
1812 | p_counter, NULL); | |
1813 | } | |
1814 | ||
6cf3c971 | 1815 | static struct mlxsw_sp_neigh_entry * |
5c8802f1 IS |
1816 | mlxsw_sp_neigh_entry_alloc(struct mlxsw_sp *mlxsw_sp, struct neighbour *n, |
1817 | u16 rif) | |
6cf3c971 JP |
1818 | { |
1819 | struct mlxsw_sp_neigh_entry *neigh_entry; | |
1820 | ||
5c8802f1 | 1821 | neigh_entry = kzalloc(sizeof(*neigh_entry), GFP_KERNEL); |
6cf3c971 JP |
1822 | if (!neigh_entry) |
1823 | return NULL; | |
5c8802f1 | 1824 | |
33b1341c | 1825 | neigh_entry->key.n = n; |
6cf3c971 | 1826 | neigh_entry->rif = rif; |
a7ff87ac | 1827 | INIT_LIST_HEAD(&neigh_entry->nexthop_list); |
5c8802f1 | 1828 | |
6cf3c971 JP |
1829 | return neigh_entry; |
1830 | } | |
1831 | ||
5c8802f1 | 1832 | static void mlxsw_sp_neigh_entry_free(struct mlxsw_sp_neigh_entry *neigh_entry) |
6cf3c971 JP |
1833 | { |
1834 | kfree(neigh_entry); | |
1835 | } | |
1836 | ||
5c8802f1 IS |
1837 | static int |
1838 | mlxsw_sp_neigh_entry_insert(struct mlxsw_sp *mlxsw_sp, | |
1839 | struct mlxsw_sp_neigh_entry *neigh_entry) | |
6cf3c971 | 1840 | { |
9011b677 | 1841 | return rhashtable_insert_fast(&mlxsw_sp->router->neigh_ht, |
5c8802f1 IS |
1842 | &neigh_entry->ht_node, |
1843 | mlxsw_sp_neigh_ht_params); | |
1844 | } | |
6cf3c971 | 1845 | |
5c8802f1 IS |
1846 | static void |
1847 | mlxsw_sp_neigh_entry_remove(struct mlxsw_sp *mlxsw_sp, | |
1848 | struct mlxsw_sp_neigh_entry *neigh_entry) | |
1849 | { | |
9011b677 | 1850 | rhashtable_remove_fast(&mlxsw_sp->router->neigh_ht, |
5c8802f1 IS |
1851 | &neigh_entry->ht_node, |
1852 | mlxsw_sp_neigh_ht_params); | |
6cf3c971 JP |
1853 | } |
1854 | ||
7cfcbc75 | 1855 | static bool |
1ed5574c AS |
1856 | mlxsw_sp_neigh_counter_should_alloc(struct mlxsw_sp *mlxsw_sp, |
1857 | struct mlxsw_sp_neigh_entry *neigh_entry) | |
7cfcbc75 AS |
1858 | { |
1859 | struct devlink *devlink; | |
1ed5574c AS |
1860 | const char *table_name; |
1861 | ||
1862 | switch (mlxsw_sp_neigh_entry_type(neigh_entry)) { | |
1863 | case AF_INET: | |
1864 | table_name = MLXSW_SP_DPIPE_TABLE_NAME_HOST4; | |
1865 | break; | |
1866 | case AF_INET6: | |
1867 | table_name = MLXSW_SP_DPIPE_TABLE_NAME_HOST6; | |
1868 | break; | |
1869 | default: | |
1870 | WARN_ON(1); | |
1871 | return false; | |
1872 | } | |
7cfcbc75 AS |
1873 | |
1874 | devlink = priv_to_devlink(mlxsw_sp->core); | |
1ed5574c | 1875 | return devlink_dpipe_table_counter_enabled(devlink, table_name); |
7cfcbc75 AS |
1876 | } |
1877 | ||
1878 | static void | |
1879 | mlxsw_sp_neigh_counter_alloc(struct mlxsw_sp *mlxsw_sp, | |
1880 | struct mlxsw_sp_neigh_entry *neigh_entry) | |
1881 | { | |
1ed5574c | 1882 | if (!mlxsw_sp_neigh_counter_should_alloc(mlxsw_sp, neigh_entry)) |
7cfcbc75 AS |
1883 | return; |
1884 | ||
1885 | if (mlxsw_sp_flow_counter_alloc(mlxsw_sp, &neigh_entry->counter_index)) | |
1886 | return; | |
1887 | ||
1888 | neigh_entry->counter_valid = true; | |
1889 | } | |
1890 | ||
1891 | static void | |
1892 | mlxsw_sp_neigh_counter_free(struct mlxsw_sp *mlxsw_sp, | |
1893 | struct mlxsw_sp_neigh_entry *neigh_entry) | |
1894 | { | |
1895 | if (!neigh_entry->counter_valid) | |
1896 | return; | |
1897 | mlxsw_sp_flow_counter_free(mlxsw_sp, | |
1898 | neigh_entry->counter_index); | |
1899 | neigh_entry->counter_valid = false; | |
1900 | } | |
1901 | ||
5c8802f1 IS |
1902 | static struct mlxsw_sp_neigh_entry * |
1903 | mlxsw_sp_neigh_entry_create(struct mlxsw_sp *mlxsw_sp, struct neighbour *n) | |
6cf3c971 | 1904 | { |
6cf3c971 | 1905 | struct mlxsw_sp_neigh_entry *neigh_entry; |
bf95233e | 1906 | struct mlxsw_sp_rif *rif; |
6cf3c971 JP |
1907 | int err; |
1908 | ||
bf95233e AS |
1909 | rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, n->dev); |
1910 | if (!rif) | |
5c8802f1 | 1911 | return ERR_PTR(-EINVAL); |
6cf3c971 | 1912 | |
bf95233e | 1913 | neigh_entry = mlxsw_sp_neigh_entry_alloc(mlxsw_sp, n, rif->rif_index); |
6cf3c971 | 1914 | if (!neigh_entry) |
5c8802f1 IS |
1915 | return ERR_PTR(-ENOMEM); |
1916 | ||
6cf3c971 JP |
1917 | err = mlxsw_sp_neigh_entry_insert(mlxsw_sp, neigh_entry); |
1918 | if (err) | |
1919 | goto err_neigh_entry_insert; | |
5c8802f1 | 1920 | |
7cfcbc75 | 1921 | mlxsw_sp_neigh_counter_alloc(mlxsw_sp, neigh_entry); |
bf95233e | 1922 | list_add(&neigh_entry->rif_list_node, &rif->neigh_list); |
9665b745 | 1923 | |
5c8802f1 | 1924 | return neigh_entry; |
6cf3c971 JP |
1925 | |
1926 | err_neigh_entry_insert: | |
5c8802f1 IS |
1927 | mlxsw_sp_neigh_entry_free(neigh_entry); |
1928 | return ERR_PTR(err); | |
6cf3c971 JP |
1929 | } |
1930 | ||
5c8802f1 IS |
1931 | static void |
1932 | mlxsw_sp_neigh_entry_destroy(struct mlxsw_sp *mlxsw_sp, | |
1933 | struct mlxsw_sp_neigh_entry *neigh_entry) | |
6cf3c971 | 1934 | { |
9665b745 | 1935 | list_del(&neigh_entry->rif_list_node); |
7cfcbc75 | 1936 | mlxsw_sp_neigh_counter_free(mlxsw_sp, neigh_entry); |
5c8802f1 IS |
1937 | mlxsw_sp_neigh_entry_remove(mlxsw_sp, neigh_entry); |
1938 | mlxsw_sp_neigh_entry_free(neigh_entry); | |
1939 | } | |
6cf3c971 | 1940 | |
5c8802f1 IS |
1941 | static struct mlxsw_sp_neigh_entry * |
1942 | mlxsw_sp_neigh_entry_lookup(struct mlxsw_sp *mlxsw_sp, struct neighbour *n) | |
1943 | { | |
1944 | struct mlxsw_sp_neigh_key key; | |
6cf3c971 | 1945 | |
5c8802f1 | 1946 | key.n = n; |
9011b677 | 1947 | return rhashtable_lookup_fast(&mlxsw_sp->router->neigh_ht, |
5c8802f1 | 1948 | &key, mlxsw_sp_neigh_ht_params); |
6cf3c971 JP |
1949 | } |
1950 | ||
c723c735 YG |
1951 | static void |
1952 | mlxsw_sp_router_neighs_update_interval_init(struct mlxsw_sp *mlxsw_sp) | |
1953 | { | |
a6c9b5d1 | 1954 | unsigned long interval; |
c723c735 | 1955 | |
b5f3e0d4 | 1956 | #if IS_ENABLED(CONFIG_IPV6) |
a6c9b5d1 AS |
1957 | interval = min_t(unsigned long, |
1958 | NEIGH_VAR(&arp_tbl.parms, DELAY_PROBE_TIME), | |
1959 | NEIGH_VAR(&nd_tbl.parms, DELAY_PROBE_TIME)); | |
b5f3e0d4 IS |
1960 | #else |
1961 | interval = NEIGH_VAR(&arp_tbl.parms, DELAY_PROBE_TIME); | |
1962 | #endif | |
9011b677 | 1963 | mlxsw_sp->router->neighs_update.interval = jiffies_to_msecs(interval); |
c723c735 YG |
1964 | } |
1965 | ||
1966 | static void mlxsw_sp_router_neigh_ent_ipv4_process(struct mlxsw_sp *mlxsw_sp, | |
1967 | char *rauhtd_pl, | |
1968 | int ent_index) | |
1969 | { | |
1970 | struct net_device *dev; | |
1971 | struct neighbour *n; | |
1972 | __be32 dipn; | |
1973 | u32 dip; | |
1974 | u16 rif; | |
1975 | ||
1976 | mlxsw_reg_rauhtd_ent_ipv4_unpack(rauhtd_pl, ent_index, &rif, &dip); | |
1977 | ||
5f9efffb | 1978 | if (!mlxsw_sp->router->rifs[rif]) { |
c723c735 YG |
1979 | dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect RIF in neighbour entry\n"); |
1980 | return; | |
1981 | } | |
1982 | ||
1983 | dipn = htonl(dip); | |
5f9efffb | 1984 | dev = mlxsw_sp->router->rifs[rif]->dev; |
c723c735 | 1985 | n = neigh_lookup(&arp_tbl, &dipn, dev); |
1ecdaea0 | 1986 | if (!n) |
c723c735 | 1987 | return; |
c723c735 YG |
1988 | |
1989 | netdev_dbg(dev, "Updating neighbour with IP=%pI4h\n", &dip); | |
1990 | neigh_event_send(n, NULL); | |
1991 | neigh_release(n); | |
1992 | } | |
1993 | ||
df9a21f1 | 1994 | #if IS_ENABLED(CONFIG_IPV6) |
60f040ca AS |
1995 | static void mlxsw_sp_router_neigh_ent_ipv6_process(struct mlxsw_sp *mlxsw_sp, |
1996 | char *rauhtd_pl, | |
1997 | int rec_index) | |
1998 | { | |
1999 | struct net_device *dev; | |
2000 | struct neighbour *n; | |
2001 | struct in6_addr dip; | |
2002 | u16 rif; | |
2003 | ||
2004 | mlxsw_reg_rauhtd_ent_ipv6_unpack(rauhtd_pl, rec_index, &rif, | |
2005 | (char *) &dip); | |
2006 | ||
2007 | if (!mlxsw_sp->router->rifs[rif]) { | |
2008 | dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect RIF in neighbour entry\n"); | |
2009 | return; | |
2010 | } | |
2011 | ||
2012 | dev = mlxsw_sp->router->rifs[rif]->dev; | |
2013 | n = neigh_lookup(&nd_tbl, &dip, dev); | |
1ecdaea0 | 2014 | if (!n) |
60f040ca | 2015 | return; |
60f040ca AS |
2016 | |
2017 | netdev_dbg(dev, "Updating neighbour with IP=%pI6c\n", &dip); | |
2018 | neigh_event_send(n, NULL); | |
2019 | neigh_release(n); | |
2020 | } | |
b5f3e0d4 IS |
2021 | #else |
2022 | static void mlxsw_sp_router_neigh_ent_ipv6_process(struct mlxsw_sp *mlxsw_sp, | |
2023 | char *rauhtd_pl, | |
2024 | int rec_index) | |
2025 | { | |
2026 | } | |
2027 | #endif | |
60f040ca | 2028 | |
c723c735 YG |
2029 | static void mlxsw_sp_router_neigh_rec_ipv4_process(struct mlxsw_sp *mlxsw_sp, |
2030 | char *rauhtd_pl, | |
2031 | int rec_index) | |
2032 | { | |
2033 | u8 num_entries; | |
2034 | int i; | |
2035 | ||
2036 | num_entries = mlxsw_reg_rauhtd_ipv4_rec_num_entries_get(rauhtd_pl, | |
2037 | rec_index); | |
2038 | /* Hardware starts counting at 0, so add 1. */ | |
2039 | num_entries++; | |
2040 | ||
2041 | /* Each record consists of several neighbour entries. */ | |
2042 | for (i = 0; i < num_entries; i++) { | |
2043 | int ent_index; | |
2044 | ||
2045 | ent_index = rec_index * MLXSW_REG_RAUHTD_IPV4_ENT_PER_REC + i; | |
2046 | mlxsw_sp_router_neigh_ent_ipv4_process(mlxsw_sp, rauhtd_pl, | |
2047 | ent_index); | |
2048 | } | |
2049 | ||
2050 | } | |
2051 | ||
60f040ca AS |
2052 | static void mlxsw_sp_router_neigh_rec_ipv6_process(struct mlxsw_sp *mlxsw_sp, |
2053 | char *rauhtd_pl, | |
2054 | int rec_index) | |
2055 | { | |
2056 | /* One record contains one entry. */ | |
2057 | mlxsw_sp_router_neigh_ent_ipv6_process(mlxsw_sp, rauhtd_pl, | |
2058 | rec_index); | |
2059 | } | |
2060 | ||
c723c735 YG |
2061 | static void mlxsw_sp_router_neigh_rec_process(struct mlxsw_sp *mlxsw_sp, |
2062 | char *rauhtd_pl, int rec_index) | |
2063 | { | |
2064 | switch (mlxsw_reg_rauhtd_rec_type_get(rauhtd_pl, rec_index)) { | |
2065 | case MLXSW_REG_RAUHTD_TYPE_IPV4: | |
2066 | mlxsw_sp_router_neigh_rec_ipv4_process(mlxsw_sp, rauhtd_pl, | |
2067 | rec_index); | |
2068 | break; | |
2069 | case MLXSW_REG_RAUHTD_TYPE_IPV6: | |
60f040ca AS |
2070 | mlxsw_sp_router_neigh_rec_ipv6_process(mlxsw_sp, rauhtd_pl, |
2071 | rec_index); | |
c723c735 YG |
2072 | break; |
2073 | } | |
2074 | } | |
2075 | ||
42cdb338 AS |
2076 | static bool mlxsw_sp_router_rauhtd_is_full(char *rauhtd_pl) |
2077 | { | |
2078 | u8 num_rec, last_rec_index, num_entries; | |
2079 | ||
2080 | num_rec = mlxsw_reg_rauhtd_num_rec_get(rauhtd_pl); | |
2081 | last_rec_index = num_rec - 1; | |
2082 | ||
2083 | if (num_rec < MLXSW_REG_RAUHTD_REC_MAX_NUM) | |
2084 | return false; | |
2085 | if (mlxsw_reg_rauhtd_rec_type_get(rauhtd_pl, last_rec_index) == | |
2086 | MLXSW_REG_RAUHTD_TYPE_IPV6) | |
2087 | return true; | |
2088 | ||
2089 | num_entries = mlxsw_reg_rauhtd_ipv4_rec_num_entries_get(rauhtd_pl, | |
2090 | last_rec_index); | |
2091 | if (++num_entries == MLXSW_REG_RAUHTD_IPV4_ENT_PER_REC) | |
2092 | return true; | |
2093 | return false; | |
2094 | } | |
2095 | ||
60f040ca AS |
2096 | static int |
2097 | __mlxsw_sp_router_neighs_update_rauhtd(struct mlxsw_sp *mlxsw_sp, | |
2098 | char *rauhtd_pl, | |
2099 | enum mlxsw_reg_rauhtd_type type) | |
c723c735 | 2100 | { |
60f040ca AS |
2101 | int i, num_rec; |
2102 | int err; | |
c723c735 YG |
2103 | |
2104 | /* Make sure the neighbour's netdev isn't removed in the | |
2105 | * process. | |
2106 | */ | |
2107 | rtnl_lock(); | |
2108 | do { | |
60f040ca | 2109 | mlxsw_reg_rauhtd_pack(rauhtd_pl, type); |
c723c735 YG |
2110 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(rauhtd), |
2111 | rauhtd_pl); | |
2112 | if (err) { | |
7ff176f8 | 2113 | dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to dump neighbour table\n"); |
c723c735 YG |
2114 | break; |
2115 | } | |
2116 | num_rec = mlxsw_reg_rauhtd_num_rec_get(rauhtd_pl); | |
2117 | for (i = 0; i < num_rec; i++) | |
2118 | mlxsw_sp_router_neigh_rec_process(mlxsw_sp, rauhtd_pl, | |
2119 | i); | |
42cdb338 | 2120 | } while (mlxsw_sp_router_rauhtd_is_full(rauhtd_pl)); |
c723c735 YG |
2121 | rtnl_unlock(); |
2122 | ||
60f040ca AS |
2123 | return err; |
2124 | } | |
2125 | ||
2126 | static int mlxsw_sp_router_neighs_update_rauhtd(struct mlxsw_sp *mlxsw_sp) | |
2127 | { | |
2128 | enum mlxsw_reg_rauhtd_type type; | |
2129 | char *rauhtd_pl; | |
2130 | int err; | |
2131 | ||
2132 | rauhtd_pl = kmalloc(MLXSW_REG_RAUHTD_LEN, GFP_KERNEL); | |
2133 | if (!rauhtd_pl) | |
2134 | return -ENOMEM; | |
2135 | ||
2136 | type = MLXSW_REG_RAUHTD_TYPE_IPV4; | |
2137 | err = __mlxsw_sp_router_neighs_update_rauhtd(mlxsw_sp, rauhtd_pl, type); | |
2138 | if (err) | |
2139 | goto out; | |
2140 | ||
2141 | type = MLXSW_REG_RAUHTD_TYPE_IPV6; | |
2142 | err = __mlxsw_sp_router_neighs_update_rauhtd(mlxsw_sp, rauhtd_pl, type); | |
2143 | out: | |
c723c735 | 2144 | kfree(rauhtd_pl); |
b2157149 YG |
2145 | return err; |
2146 | } | |
2147 | ||
2148 | static void mlxsw_sp_router_neighs_update_nh(struct mlxsw_sp *mlxsw_sp) | |
2149 | { | |
2150 | struct mlxsw_sp_neigh_entry *neigh_entry; | |
2151 | ||
2152 | /* Take RTNL mutex here to prevent lists from changes */ | |
2153 | rtnl_lock(); | |
9011b677 | 2154 | list_for_each_entry(neigh_entry, &mlxsw_sp->router->nexthop_neighs_list, |
8a0b7275 | 2155 | nexthop_neighs_list_node) |
b2157149 YG |
2156 | /* If this neigh have nexthops, make the kernel think this neigh |
2157 | * is active regardless of the traffic. | |
2158 | */ | |
8a0b7275 | 2159 | neigh_event_send(neigh_entry->key.n, NULL); |
b2157149 YG |
2160 | rtnl_unlock(); |
2161 | } | |
2162 | ||
2163 | static void | |
2164 | mlxsw_sp_router_neighs_update_work_schedule(struct mlxsw_sp *mlxsw_sp) | |
2165 | { | |
9011b677 | 2166 | unsigned long interval = mlxsw_sp->router->neighs_update.interval; |
b2157149 | 2167 | |
9011b677 | 2168 | mlxsw_core_schedule_dw(&mlxsw_sp->router->neighs_update.dw, |
b2157149 YG |
2169 | msecs_to_jiffies(interval)); |
2170 | } | |
2171 | ||
2172 | static void mlxsw_sp_router_neighs_update_work(struct work_struct *work) | |
2173 | { | |
9011b677 | 2174 | struct mlxsw_sp_router *router; |
b2157149 YG |
2175 | int err; |
2176 | ||
9011b677 IS |
2177 | router = container_of(work, struct mlxsw_sp_router, |
2178 | neighs_update.dw.work); | |
2179 | err = mlxsw_sp_router_neighs_update_rauhtd(router->mlxsw_sp); | |
b2157149 | 2180 | if (err) |
9011b677 | 2181 | dev_err(router->mlxsw_sp->bus_info->dev, "Could not update kernel for neigh activity"); |
b2157149 | 2182 | |
9011b677 | 2183 | mlxsw_sp_router_neighs_update_nh(router->mlxsw_sp); |
b2157149 | 2184 | |
9011b677 | 2185 | mlxsw_sp_router_neighs_update_work_schedule(router->mlxsw_sp); |
c723c735 YG |
2186 | } |
2187 | ||
0b2361d9 YG |
2188 | static void mlxsw_sp_router_probe_unresolved_nexthops(struct work_struct *work) |
2189 | { | |
2190 | struct mlxsw_sp_neigh_entry *neigh_entry; | |
9011b677 | 2191 | struct mlxsw_sp_router *router; |
0b2361d9 | 2192 | |
9011b677 IS |
2193 | router = container_of(work, struct mlxsw_sp_router, |
2194 | nexthop_probe_dw.work); | |
0b2361d9 YG |
2195 | /* Iterate over nexthop neighbours, find those who are unresolved and |
2196 | * send arp on them. This solves the chicken-egg problem when | |
2197 | * the nexthop wouldn't get offloaded until the neighbor is resolved | |
2198 | * but it wouldn't get resolved ever in case traffic is flowing in HW | |
2199 | * using different nexthop. | |
2200 | * | |
2201 | * Take RTNL mutex here to prevent lists from changes. | |
2202 | */ | |
2203 | rtnl_lock(); | |
9011b677 | 2204 | list_for_each_entry(neigh_entry, &router->nexthop_neighs_list, |
8a0b7275 | 2205 | nexthop_neighs_list_node) |
01b1aa35 | 2206 | if (!neigh_entry->connected) |
33b1341c | 2207 | neigh_event_send(neigh_entry->key.n, NULL); |
0b2361d9 YG |
2208 | rtnl_unlock(); |
2209 | ||
9011b677 | 2210 | mlxsw_core_schedule_dw(&router->nexthop_probe_dw, |
0b2361d9 YG |
2211 | MLXSW_SP_UNRESOLVED_NH_PROBE_INTERVAL); |
2212 | } | |
2213 | ||
a7ff87ac JP |
2214 | static void |
2215 | mlxsw_sp_nexthop_neigh_update(struct mlxsw_sp *mlxsw_sp, | |
2216 | struct mlxsw_sp_neigh_entry *neigh_entry, | |
2217 | bool removing); | |
2218 | ||
5c8802f1 IS |
2219 | static enum mlxsw_reg_rauht_op mlxsw_sp_rauht_op(bool adding) |
2220 | { | |
2221 | return adding ? MLXSW_REG_RAUHT_OP_WRITE_ADD : | |
2222 | MLXSW_REG_RAUHT_OP_WRITE_DELETE; | |
2223 | } | |
2224 | ||
2225 | static void | |
2226 | mlxsw_sp_router_neigh_entry_op4(struct mlxsw_sp *mlxsw_sp, | |
2227 | struct mlxsw_sp_neigh_entry *neigh_entry, | |
2228 | enum mlxsw_reg_rauht_op op) | |
a6bf9e93 | 2229 | { |
33b1341c | 2230 | struct neighbour *n = neigh_entry->key.n; |
5c8802f1 | 2231 | u32 dip = ntohl(*((__be32 *) n->primary_key)); |
a6bf9e93 | 2232 | char rauht_pl[MLXSW_REG_RAUHT_LEN]; |
5c8802f1 IS |
2233 | |
2234 | mlxsw_reg_rauht_pack4(rauht_pl, op, neigh_entry->rif, neigh_entry->ha, | |
2235 | dip); | |
7cfcbc75 AS |
2236 | if (neigh_entry->counter_valid) |
2237 | mlxsw_reg_rauht_pack_counter(rauht_pl, | |
2238 | neigh_entry->counter_index); | |
5c8802f1 IS |
2239 | mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rauht), rauht_pl); |
2240 | } | |
2241 | ||
d5eb89cf AS |
2242 | static void |
2243 | mlxsw_sp_router_neigh_entry_op6(struct mlxsw_sp *mlxsw_sp, | |
2244 | struct mlxsw_sp_neigh_entry *neigh_entry, | |
2245 | enum mlxsw_reg_rauht_op op) | |
2246 | { | |
2247 | struct neighbour *n = neigh_entry->key.n; | |
2248 | char rauht_pl[MLXSW_REG_RAUHT_LEN]; | |
2249 | const char *dip = n->primary_key; | |
2250 | ||
2251 | mlxsw_reg_rauht_pack6(rauht_pl, op, neigh_entry->rif, neigh_entry->ha, | |
2252 | dip); | |
7cfcbc75 AS |
2253 | if (neigh_entry->counter_valid) |
2254 | mlxsw_reg_rauht_pack_counter(rauht_pl, | |
2255 | neigh_entry->counter_index); | |
d5eb89cf AS |
2256 | mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rauht), rauht_pl); |
2257 | } | |
2258 | ||
1d1056d8 | 2259 | bool mlxsw_sp_neigh_ipv6_ignore(struct mlxsw_sp_neigh_entry *neigh_entry) |
d5eb89cf | 2260 | { |
1d1056d8 AS |
2261 | struct neighbour *n = neigh_entry->key.n; |
2262 | ||
d5eb89cf AS |
2263 | /* Packets with a link-local destination address are trapped |
2264 | * after LPM lookup and never reach the neighbour table, so | |
2265 | * there is no need to program such neighbours to the device. | |
2266 | */ | |
2267 | if (ipv6_addr_type((struct in6_addr *) &n->primary_key) & | |
2268 | IPV6_ADDR_LINKLOCAL) | |
2269 | return true; | |
2270 | return false; | |
2271 | } | |
2272 | ||
5c8802f1 IS |
2273 | static void |
2274 | mlxsw_sp_neigh_entry_update(struct mlxsw_sp *mlxsw_sp, | |
2275 | struct mlxsw_sp_neigh_entry *neigh_entry, | |
2276 | bool adding) | |
2277 | { | |
2278 | if (!adding && !neigh_entry->connected) | |
2279 | return; | |
2280 | neigh_entry->connected = adding; | |
b5f3e0d4 | 2281 | if (neigh_entry->key.n->tbl->family == AF_INET) { |
5c8802f1 IS |
2282 | mlxsw_sp_router_neigh_entry_op4(mlxsw_sp, neigh_entry, |
2283 | mlxsw_sp_rauht_op(adding)); | |
b5f3e0d4 | 2284 | } else if (neigh_entry->key.n->tbl->family == AF_INET6) { |
1d1056d8 | 2285 | if (mlxsw_sp_neigh_ipv6_ignore(neigh_entry)) |
d5eb89cf AS |
2286 | return; |
2287 | mlxsw_sp_router_neigh_entry_op6(mlxsw_sp, neigh_entry, | |
2288 | mlxsw_sp_rauht_op(adding)); | |
2289 | } else { | |
5c8802f1 | 2290 | WARN_ON_ONCE(1); |
d5eb89cf | 2291 | } |
5c8802f1 IS |
2292 | } |
2293 | ||
a481d713 AS |
2294 | void |
2295 | mlxsw_sp_neigh_entry_counter_update(struct mlxsw_sp *mlxsw_sp, | |
2296 | struct mlxsw_sp_neigh_entry *neigh_entry, | |
2297 | bool adding) | |
2298 | { | |
2299 | if (adding) | |
2300 | mlxsw_sp_neigh_counter_alloc(mlxsw_sp, neigh_entry); | |
2301 | else | |
2302 | mlxsw_sp_neigh_counter_free(mlxsw_sp, neigh_entry); | |
2303 | mlxsw_sp_neigh_entry_update(mlxsw_sp, neigh_entry, true); | |
2304 | } | |
2305 | ||
ceb8881d | 2306 | struct mlxsw_sp_netevent_work { |
5c8802f1 IS |
2307 | struct work_struct work; |
2308 | struct mlxsw_sp *mlxsw_sp; | |
2309 | struct neighbour *n; | |
2310 | }; | |
2311 | ||
2312 | static void mlxsw_sp_router_neigh_event_work(struct work_struct *work) | |
2313 | { | |
ceb8881d IS |
2314 | struct mlxsw_sp_netevent_work *net_work = |
2315 | container_of(work, struct mlxsw_sp_netevent_work, work); | |
2316 | struct mlxsw_sp *mlxsw_sp = net_work->mlxsw_sp; | |
5c8802f1 | 2317 | struct mlxsw_sp_neigh_entry *neigh_entry; |
ceb8881d | 2318 | struct neighbour *n = net_work->n; |
5c8802f1 | 2319 | unsigned char ha[ETH_ALEN]; |
a6bf9e93 | 2320 | bool entry_connected; |
93a87e5e | 2321 | u8 nud_state, dead; |
a6bf9e93 | 2322 | |
5c8802f1 IS |
2323 | /* If these parameters are changed after we release the lock, |
2324 | * then we are guaranteed to receive another event letting us | |
2325 | * know about it. | |
2326 | */ | |
a6bf9e93 | 2327 | read_lock_bh(&n->lock); |
5c8802f1 | 2328 | memcpy(ha, n->ha, ETH_ALEN); |
a6bf9e93 | 2329 | nud_state = n->nud_state; |
93a87e5e | 2330 | dead = n->dead; |
a6bf9e93 YG |
2331 | read_unlock_bh(&n->lock); |
2332 | ||
5c8802f1 | 2333 | rtnl_lock(); |
803335ac PM |
2334 | mlxsw_sp_span_respin(mlxsw_sp); |
2335 | ||
93a87e5e | 2336 | entry_connected = nud_state & NUD_VALID && !dead; |
5c8802f1 IS |
2337 | neigh_entry = mlxsw_sp_neigh_entry_lookup(mlxsw_sp, n); |
2338 | if (!entry_connected && !neigh_entry) | |
2339 | goto out; | |
2340 | if (!neigh_entry) { | |
2341 | neigh_entry = mlxsw_sp_neigh_entry_create(mlxsw_sp, n); | |
2342 | if (IS_ERR(neigh_entry)) | |
2343 | goto out; | |
a6bf9e93 YG |
2344 | } |
2345 | ||
5c8802f1 IS |
2346 | memcpy(neigh_entry->ha, ha, ETH_ALEN); |
2347 | mlxsw_sp_neigh_entry_update(mlxsw_sp, neigh_entry, entry_connected); | |
2348 | mlxsw_sp_nexthop_neigh_update(mlxsw_sp, neigh_entry, !entry_connected); | |
2349 | ||
2350 | if (!neigh_entry->connected && list_empty(&neigh_entry->nexthop_list)) | |
2351 | mlxsw_sp_neigh_entry_destroy(mlxsw_sp, neigh_entry); | |
2352 | ||
2353 | out: | |
2354 | rtnl_unlock(); | |
a6bf9e93 | 2355 | neigh_release(n); |
ceb8881d | 2356 | kfree(net_work); |
a6bf9e93 YG |
2357 | } |
2358 | ||
28678f07 IS |
2359 | static int mlxsw_sp_mp_hash_init(struct mlxsw_sp *mlxsw_sp); |
2360 | ||
2361 | static void mlxsw_sp_router_mp_hash_event_work(struct work_struct *work) | |
2362 | { | |
2363 | struct mlxsw_sp_netevent_work *net_work = | |
2364 | container_of(work, struct mlxsw_sp_netevent_work, work); | |
2365 | struct mlxsw_sp *mlxsw_sp = net_work->mlxsw_sp; | |
2366 | ||
2367 | mlxsw_sp_mp_hash_init(mlxsw_sp); | |
2368 | kfree(net_work); | |
2369 | } | |
2370 | ||
2371 | static int mlxsw_sp_router_netevent_event(struct notifier_block *nb, | |
48fac885 | 2372 | unsigned long event, void *ptr) |
c723c735 | 2373 | { |
ceb8881d | 2374 | struct mlxsw_sp_netevent_work *net_work; |
c723c735 | 2375 | struct mlxsw_sp_port *mlxsw_sp_port; |
28678f07 | 2376 | struct mlxsw_sp_router *router; |
c723c735 YG |
2377 | struct mlxsw_sp *mlxsw_sp; |
2378 | unsigned long interval; | |
2379 | struct neigh_parms *p; | |
a6bf9e93 | 2380 | struct neighbour *n; |
28678f07 | 2381 | struct net *net; |
c723c735 YG |
2382 | |
2383 | switch (event) { | |
2384 | case NETEVENT_DELAY_PROBE_TIME_UPDATE: | |
2385 | p = ptr; | |
2386 | ||
2387 | /* We don't care about changes in the default table. */ | |
b5f3e0d4 IS |
2388 | if (!p->dev || (p->tbl->family != AF_INET && |
2389 | p->tbl->family != AF_INET6)) | |
c723c735 YG |
2390 | return NOTIFY_DONE; |
2391 | ||
2392 | /* We are in atomic context and can't take RTNL mutex, | |
2393 | * so use RCU variant to walk the device chain. | |
2394 | */ | |
2395 | mlxsw_sp_port = mlxsw_sp_port_lower_dev_hold(p->dev); | |
2396 | if (!mlxsw_sp_port) | |
2397 | return NOTIFY_DONE; | |
2398 | ||
2399 | mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
2400 | interval = jiffies_to_msecs(NEIGH_VAR(p, DELAY_PROBE_TIME)); | |
9011b677 | 2401 | mlxsw_sp->router->neighs_update.interval = interval; |
c723c735 YG |
2402 | |
2403 | mlxsw_sp_port_dev_put(mlxsw_sp_port); | |
2404 | break; | |
a6bf9e93 YG |
2405 | case NETEVENT_NEIGH_UPDATE: |
2406 | n = ptr; | |
a6bf9e93 | 2407 | |
b5f3e0d4 | 2408 | if (n->tbl->family != AF_INET && n->tbl->family != AF_INET6) |
a6bf9e93 YG |
2409 | return NOTIFY_DONE; |
2410 | ||
5c8802f1 | 2411 | mlxsw_sp_port = mlxsw_sp_port_lower_dev_hold(n->dev); |
a6bf9e93 YG |
2412 | if (!mlxsw_sp_port) |
2413 | return NOTIFY_DONE; | |
2414 | ||
ceb8881d IS |
2415 | net_work = kzalloc(sizeof(*net_work), GFP_ATOMIC); |
2416 | if (!net_work) { | |
a6bf9e93 | 2417 | mlxsw_sp_port_dev_put(mlxsw_sp_port); |
5c8802f1 | 2418 | return NOTIFY_BAD; |
a6bf9e93 | 2419 | } |
5c8802f1 | 2420 | |
ceb8881d IS |
2421 | INIT_WORK(&net_work->work, mlxsw_sp_router_neigh_event_work); |
2422 | net_work->mlxsw_sp = mlxsw_sp_port->mlxsw_sp; | |
2423 | net_work->n = n; | |
a6bf9e93 YG |
2424 | |
2425 | /* Take a reference to ensure the neighbour won't be | |
2426 | * destructed until we drop the reference in delayed | |
2427 | * work. | |
2428 | */ | |
2429 | neigh_clone(n); | |
ceb8881d | 2430 | mlxsw_core_schedule_work(&net_work->work); |
5c8802f1 | 2431 | mlxsw_sp_port_dev_put(mlxsw_sp_port); |
a6bf9e93 | 2432 | break; |
3192dac6 | 2433 | case NETEVENT_IPV4_MPATH_HASH_UPDATE: |
5e18b9c5 | 2434 | case NETEVENT_IPV6_MPATH_HASH_UPDATE: |
28678f07 IS |
2435 | net = ptr; |
2436 | ||
2437 | if (!net_eq(net, &init_net)) | |
2438 | return NOTIFY_DONE; | |
2439 | ||
2440 | net_work = kzalloc(sizeof(*net_work), GFP_ATOMIC); | |
2441 | if (!net_work) | |
2442 | return NOTIFY_BAD; | |
2443 | ||
2444 | router = container_of(nb, struct mlxsw_sp_router, netevent_nb); | |
2445 | INIT_WORK(&net_work->work, mlxsw_sp_router_mp_hash_event_work); | |
2446 | net_work->mlxsw_sp = router->mlxsw_sp; | |
2447 | mlxsw_core_schedule_work(&net_work->work); | |
2448 | break; | |
c723c735 YG |
2449 | } |
2450 | ||
2451 | return NOTIFY_DONE; | |
2452 | } | |
2453 | ||
6cf3c971 JP |
2454 | static int mlxsw_sp_neigh_init(struct mlxsw_sp *mlxsw_sp) |
2455 | { | |
c723c735 YG |
2456 | int err; |
2457 | ||
9011b677 | 2458 | err = rhashtable_init(&mlxsw_sp->router->neigh_ht, |
c723c735 YG |
2459 | &mlxsw_sp_neigh_ht_params); |
2460 | if (err) | |
2461 | return err; | |
2462 | ||
2463 | /* Initialize the polling interval according to the default | |
2464 | * table. | |
2465 | */ | |
2466 | mlxsw_sp_router_neighs_update_interval_init(mlxsw_sp); | |
2467 | ||
0b2361d9 | 2468 | /* Create the delayed works for the activity_update */ |
9011b677 | 2469 | INIT_DELAYED_WORK(&mlxsw_sp->router->neighs_update.dw, |
c723c735 | 2470 | mlxsw_sp_router_neighs_update_work); |
9011b677 | 2471 | INIT_DELAYED_WORK(&mlxsw_sp->router->nexthop_probe_dw, |
0b2361d9 | 2472 | mlxsw_sp_router_probe_unresolved_nexthops); |
9011b677 IS |
2473 | mlxsw_core_schedule_dw(&mlxsw_sp->router->neighs_update.dw, 0); |
2474 | mlxsw_core_schedule_dw(&mlxsw_sp->router->nexthop_probe_dw, 0); | |
c723c735 | 2475 | return 0; |
6cf3c971 JP |
2476 | } |
2477 | ||
2478 | static void mlxsw_sp_neigh_fini(struct mlxsw_sp *mlxsw_sp) | |
2479 | { | |
9011b677 IS |
2480 | cancel_delayed_work_sync(&mlxsw_sp->router->neighs_update.dw); |
2481 | cancel_delayed_work_sync(&mlxsw_sp->router->nexthop_probe_dw); | |
2482 | rhashtable_destroy(&mlxsw_sp->router->neigh_ht); | |
6cf3c971 JP |
2483 | } |
2484 | ||
9665b745 | 2485 | static void mlxsw_sp_neigh_rif_gone_sync(struct mlxsw_sp *mlxsw_sp, |
bf95233e | 2486 | struct mlxsw_sp_rif *rif) |
9665b745 IS |
2487 | { |
2488 | struct mlxsw_sp_neigh_entry *neigh_entry, *tmp; | |
2489 | ||
bf95233e | 2490 | list_for_each_entry_safe(neigh_entry, tmp, &rif->neigh_list, |
8ba6b30e PM |
2491 | rif_list_node) { |
2492 | mlxsw_sp_neigh_entry_update(mlxsw_sp, neigh_entry, false); | |
9665b745 | 2493 | mlxsw_sp_neigh_entry_destroy(mlxsw_sp, neigh_entry); |
8ba6b30e | 2494 | } |
9665b745 IS |
2495 | } |
2496 | ||
35225e47 PM |
2497 | enum mlxsw_sp_nexthop_type { |
2498 | MLXSW_SP_NEXTHOP_TYPE_ETH, | |
1012b9ac | 2499 | MLXSW_SP_NEXTHOP_TYPE_IPIP, |
35225e47 PM |
2500 | }; |
2501 | ||
c53b8e1b IS |
2502 | struct mlxsw_sp_nexthop_key { |
2503 | struct fib_nh *fib_nh; | |
2504 | }; | |
2505 | ||
a7ff87ac JP |
2506 | struct mlxsw_sp_nexthop { |
2507 | struct list_head neigh_list_node; /* member of neigh entry list */ | |
9665b745 | 2508 | struct list_head rif_list_node; |
dbe4598c | 2509 | struct list_head router_list_node; |
a7ff87ac JP |
2510 | struct mlxsw_sp_nexthop_group *nh_grp; /* pointer back to the group |
2511 | * this belongs to | |
2512 | */ | |
c53b8e1b IS |
2513 | struct rhash_head ht_node; |
2514 | struct mlxsw_sp_nexthop_key key; | |
58adf2c4 | 2515 | unsigned char gw_addr[sizeof(struct in6_addr)]; |
e6f3b379 | 2516 | int ifindex; |
408bd946 | 2517 | int nh_weight; |
eb789980 IS |
2518 | int norm_nh_weight; |
2519 | int num_adj_entries; | |
bf95233e | 2520 | struct mlxsw_sp_rif *rif; |
a7ff87ac JP |
2521 | u8 should_offload:1, /* set indicates this neigh is connected and |
2522 | * should be put to KVD linear area of this group. | |
2523 | */ | |
2524 | offloaded:1, /* set in case the neigh is actually put into | |
2525 | * KVD linear area of this group. | |
2526 | */ | |
2527 | update:1; /* set indicates that MAC of this neigh should be | |
2528 | * updated in HW | |
2529 | */ | |
35225e47 PM |
2530 | enum mlxsw_sp_nexthop_type type; |
2531 | union { | |
2532 | struct mlxsw_sp_neigh_entry *neigh_entry; | |
1012b9ac | 2533 | struct mlxsw_sp_ipip_entry *ipip_entry; |
35225e47 | 2534 | }; |
a5390278 AS |
2535 | unsigned int counter_index; |
2536 | bool counter_valid; | |
a7ff87ac JP |
2537 | }; |
2538 | ||
2539 | struct mlxsw_sp_nexthop_group { | |
ba31d366 | 2540 | void *priv; |
e9ad5e7d | 2541 | struct rhash_head ht_node; |
a7ff87ac | 2542 | struct list_head fib_list; /* list of fib entries that use this group */ |
58adf2c4 | 2543 | struct neigh_table *neigh_tbl; |
b3e8d1eb IS |
2544 | u8 adj_index_valid:1, |
2545 | gateway:1; /* routes using the group use a gateway */ | |
a7ff87ac JP |
2546 | u32 adj_index; |
2547 | u16 ecmp_size; | |
2548 | u16 count; | |
eb789980 | 2549 | int sum_norm_weight; |
a7ff87ac | 2550 | struct mlxsw_sp_nexthop nexthops[0]; |
bf95233e | 2551 | #define nh_rif nexthops[0].rif |
a7ff87ac JP |
2552 | }; |
2553 | ||
427e652a AS |
2554 | void mlxsw_sp_nexthop_counter_alloc(struct mlxsw_sp *mlxsw_sp, |
2555 | struct mlxsw_sp_nexthop *nh) | |
a5390278 AS |
2556 | { |
2557 | struct devlink *devlink; | |
2558 | ||
2559 | devlink = priv_to_devlink(mlxsw_sp->core); | |
2560 | if (!devlink_dpipe_table_counter_enabled(devlink, | |
2561 | MLXSW_SP_DPIPE_TABLE_NAME_ADJ)) | |
2562 | return; | |
2563 | ||
2564 | if (mlxsw_sp_flow_counter_alloc(mlxsw_sp, &nh->counter_index)) | |
2565 | return; | |
2566 | ||
2567 | nh->counter_valid = true; | |
2568 | } | |
2569 | ||
427e652a AS |
2570 | void mlxsw_sp_nexthop_counter_free(struct mlxsw_sp *mlxsw_sp, |
2571 | struct mlxsw_sp_nexthop *nh) | |
a5390278 AS |
2572 | { |
2573 | if (!nh->counter_valid) | |
2574 | return; | |
2575 | mlxsw_sp_flow_counter_free(mlxsw_sp, nh->counter_index); | |
2576 | nh->counter_valid = false; | |
2577 | } | |
2578 | ||
2579 | int mlxsw_sp_nexthop_counter_get(struct mlxsw_sp *mlxsw_sp, | |
2580 | struct mlxsw_sp_nexthop *nh, u64 *p_counter) | |
2581 | { | |
2582 | if (!nh->counter_valid) | |
2583 | return -EINVAL; | |
2584 | ||
2585 | return mlxsw_sp_flow_counter_get(mlxsw_sp, nh->counter_index, | |
2586 | p_counter, NULL); | |
2587 | } | |
2588 | ||
c556cd28 AS |
2589 | struct mlxsw_sp_nexthop *mlxsw_sp_nexthop_next(struct mlxsw_sp_router *router, |
2590 | struct mlxsw_sp_nexthop *nh) | |
2591 | { | |
2592 | if (!nh) { | |
2593 | if (list_empty(&router->nexthop_list)) | |
2594 | return NULL; | |
2595 | else | |
2596 | return list_first_entry(&router->nexthop_list, | |
2597 | typeof(*nh), router_list_node); | |
2598 | } | |
2599 | if (list_is_last(&nh->router_list_node, &router->nexthop_list)) | |
2600 | return NULL; | |
2601 | return list_next_entry(nh, router_list_node); | |
2602 | } | |
2603 | ||
2604 | bool mlxsw_sp_nexthop_offload(struct mlxsw_sp_nexthop *nh) | |
2605 | { | |
2606 | return nh->offloaded; | |
2607 | } | |
2608 | ||
2609 | unsigned char *mlxsw_sp_nexthop_ha(struct mlxsw_sp_nexthop *nh) | |
2610 | { | |
2611 | if (!nh->offloaded) | |
2612 | return NULL; | |
2613 | return nh->neigh_entry->ha; | |
2614 | } | |
2615 | ||
2616 | int mlxsw_sp_nexthop_indexes(struct mlxsw_sp_nexthop *nh, u32 *p_adj_index, | |
e69cd9d7 | 2617 | u32 *p_adj_size, u32 *p_adj_hash_index) |
c556cd28 AS |
2618 | { |
2619 | struct mlxsw_sp_nexthop_group *nh_grp = nh->nh_grp; | |
2620 | u32 adj_hash_index = 0; | |
2621 | int i; | |
2622 | ||
2623 | if (!nh->offloaded || !nh_grp->adj_index_valid) | |
2624 | return -EINVAL; | |
2625 | ||
2626 | *p_adj_index = nh_grp->adj_index; | |
e69cd9d7 | 2627 | *p_adj_size = nh_grp->ecmp_size; |
c556cd28 AS |
2628 | |
2629 | for (i = 0; i < nh_grp->count; i++) { | |
2630 | struct mlxsw_sp_nexthop *nh_iter = &nh_grp->nexthops[i]; | |
2631 | ||
2632 | if (nh_iter == nh) | |
2633 | break; | |
2634 | if (nh_iter->offloaded) | |
eb789980 | 2635 | adj_hash_index += nh_iter->num_adj_entries; |
c556cd28 AS |
2636 | } |
2637 | ||
2638 | *p_adj_hash_index = adj_hash_index; | |
2639 | return 0; | |
2640 | } | |
2641 | ||
2642 | struct mlxsw_sp_rif *mlxsw_sp_nexthop_rif(struct mlxsw_sp_nexthop *nh) | |
2643 | { | |
2644 | return nh->rif; | |
2645 | } | |
2646 | ||
2647 | bool mlxsw_sp_nexthop_group_has_ipip(struct mlxsw_sp_nexthop *nh) | |
2648 | { | |
2649 | struct mlxsw_sp_nexthop_group *nh_grp = nh->nh_grp; | |
2650 | int i; | |
2651 | ||
2652 | for (i = 0; i < nh_grp->count; i++) { | |
2653 | struct mlxsw_sp_nexthop *nh_iter = &nh_grp->nexthops[i]; | |
2654 | ||
2655 | if (nh_iter->type == MLXSW_SP_NEXTHOP_TYPE_IPIP) | |
2656 | return true; | |
2657 | } | |
2658 | return false; | |
2659 | } | |
2660 | ||
ba31d366 AS |
2661 | static struct fib_info * |
2662 | mlxsw_sp_nexthop4_group_fi(const struct mlxsw_sp_nexthop_group *nh_grp) | |
2663 | { | |
2664 | return nh_grp->priv; | |
2665 | } | |
2666 | ||
2667 | struct mlxsw_sp_nexthop_group_cmp_arg { | |
e6f3b379 AS |
2668 | enum mlxsw_sp_l3proto proto; |
2669 | union { | |
2670 | struct fib_info *fi; | |
2671 | struct mlxsw_sp_fib6_entry *fib6_entry; | |
2672 | }; | |
ba31d366 AS |
2673 | }; |
2674 | ||
e6f3b379 AS |
2675 | static bool |
2676 | mlxsw_sp_nexthop6_group_has_nexthop(const struct mlxsw_sp_nexthop_group *nh_grp, | |
3743d88a IS |
2677 | const struct in6_addr *gw, int ifindex, |
2678 | int weight) | |
e6f3b379 AS |
2679 | { |
2680 | int i; | |
2681 | ||
2682 | for (i = 0; i < nh_grp->count; i++) { | |
2683 | const struct mlxsw_sp_nexthop *nh; | |
2684 | ||
2685 | nh = &nh_grp->nexthops[i]; | |
3743d88a | 2686 | if (nh->ifindex == ifindex && nh->nh_weight == weight && |
e6f3b379 AS |
2687 | ipv6_addr_equal(gw, (struct in6_addr *) nh->gw_addr)) |
2688 | return true; | |
2689 | } | |
2690 | ||
2691 | return false; | |
2692 | } | |
2693 | ||
2694 | static bool | |
2695 | mlxsw_sp_nexthop6_group_cmp(const struct mlxsw_sp_nexthop_group *nh_grp, | |
2696 | const struct mlxsw_sp_fib6_entry *fib6_entry) | |
2697 | { | |
2698 | struct mlxsw_sp_rt6 *mlxsw_sp_rt6; | |
2699 | ||
2700 | if (nh_grp->count != fib6_entry->nrt6) | |
2701 | return false; | |
2702 | ||
2703 | list_for_each_entry(mlxsw_sp_rt6, &fib6_entry->rt6_list, list) { | |
2704 | struct in6_addr *gw; | |
3743d88a | 2705 | int ifindex, weight; |
e6f3b379 AS |
2706 | |
2707 | ifindex = mlxsw_sp_rt6->rt->dst.dev->ifindex; | |
3743d88a | 2708 | weight = mlxsw_sp_rt6->rt->rt6i_nh_weight; |
e6f3b379 | 2709 | gw = &mlxsw_sp_rt6->rt->rt6i_gateway; |
3743d88a IS |
2710 | if (!mlxsw_sp_nexthop6_group_has_nexthop(nh_grp, gw, ifindex, |
2711 | weight)) | |
e6f3b379 AS |
2712 | return false; |
2713 | } | |
2714 | ||
2715 | return true; | |
2716 | } | |
2717 | ||
ba31d366 AS |
2718 | static int |
2719 | mlxsw_sp_nexthop_group_cmp(struct rhashtable_compare_arg *arg, const void *ptr) | |
2720 | { | |
2721 | const struct mlxsw_sp_nexthop_group_cmp_arg *cmp_arg = arg->key; | |
2722 | const struct mlxsw_sp_nexthop_group *nh_grp = ptr; | |
2723 | ||
e6f3b379 AS |
2724 | switch (cmp_arg->proto) { |
2725 | case MLXSW_SP_L3_PROTO_IPV4: | |
2726 | return cmp_arg->fi != mlxsw_sp_nexthop4_group_fi(nh_grp); | |
2727 | case MLXSW_SP_L3_PROTO_IPV6: | |
2728 | return !mlxsw_sp_nexthop6_group_cmp(nh_grp, | |
2729 | cmp_arg->fib6_entry); | |
2730 | default: | |
2731 | WARN_ON(1); | |
2732 | return 1; | |
2733 | } | |
2734 | } | |
2735 | ||
2736 | static int | |
2737 | mlxsw_sp_nexthop_group_type(const struct mlxsw_sp_nexthop_group *nh_grp) | |
2738 | { | |
2739 | return nh_grp->neigh_tbl->family; | |
ba31d366 AS |
2740 | } |
2741 | ||
2742 | static u32 mlxsw_sp_nexthop_group_hash_obj(const void *data, u32 len, u32 seed) | |
2743 | { | |
2744 | const struct mlxsw_sp_nexthop_group *nh_grp = data; | |
e6f3b379 AS |
2745 | const struct mlxsw_sp_nexthop *nh; |
2746 | struct fib_info *fi; | |
2747 | unsigned int val; | |
2748 | int i; | |
ba31d366 | 2749 | |
e6f3b379 AS |
2750 | switch (mlxsw_sp_nexthop_group_type(nh_grp)) { |
2751 | case AF_INET: | |
2752 | fi = mlxsw_sp_nexthop4_group_fi(nh_grp); | |
2753 | return jhash(&fi, sizeof(fi), seed); | |
2754 | case AF_INET6: | |
2755 | val = nh_grp->count; | |
2756 | for (i = 0; i < nh_grp->count; i++) { | |
2757 | nh = &nh_grp->nexthops[i]; | |
2758 | val ^= nh->ifindex; | |
2759 | } | |
2760 | return jhash(&val, sizeof(val), seed); | |
2761 | default: | |
2762 | WARN_ON(1); | |
2763 | return 0; | |
2764 | } | |
2765 | } | |
2766 | ||
2767 | static u32 | |
2768 | mlxsw_sp_nexthop6_group_hash(struct mlxsw_sp_fib6_entry *fib6_entry, u32 seed) | |
2769 | { | |
2770 | unsigned int val = fib6_entry->nrt6; | |
2771 | struct mlxsw_sp_rt6 *mlxsw_sp_rt6; | |
2772 | struct net_device *dev; | |
2773 | ||
2774 | list_for_each_entry(mlxsw_sp_rt6, &fib6_entry->rt6_list, list) { | |
2775 | dev = mlxsw_sp_rt6->rt->dst.dev; | |
2776 | val ^= dev->ifindex; | |
2777 | } | |
2778 | ||
2779 | return jhash(&val, sizeof(val), seed); | |
ba31d366 AS |
2780 | } |
2781 | ||
2782 | static u32 | |
2783 | mlxsw_sp_nexthop_group_hash(const void *data, u32 len, u32 seed) | |
2784 | { | |
2785 | const struct mlxsw_sp_nexthop_group_cmp_arg *cmp_arg = data; | |
2786 | ||
e6f3b379 AS |
2787 | switch (cmp_arg->proto) { |
2788 | case MLXSW_SP_L3_PROTO_IPV4: | |
2789 | return jhash(&cmp_arg->fi, sizeof(cmp_arg->fi), seed); | |
2790 | case MLXSW_SP_L3_PROTO_IPV6: | |
2791 | return mlxsw_sp_nexthop6_group_hash(cmp_arg->fib6_entry, seed); | |
2792 | default: | |
2793 | WARN_ON(1); | |
2794 | return 0; | |
2795 | } | |
ba31d366 AS |
2796 | } |
2797 | ||
e9ad5e7d | 2798 | static const struct rhashtable_params mlxsw_sp_nexthop_group_ht_params = { |
e9ad5e7d | 2799 | .head_offset = offsetof(struct mlxsw_sp_nexthop_group, ht_node), |
ba31d366 AS |
2800 | .hashfn = mlxsw_sp_nexthop_group_hash, |
2801 | .obj_hashfn = mlxsw_sp_nexthop_group_hash_obj, | |
2802 | .obj_cmpfn = mlxsw_sp_nexthop_group_cmp, | |
e9ad5e7d IS |
2803 | }; |
2804 | ||
2805 | static int mlxsw_sp_nexthop_group_insert(struct mlxsw_sp *mlxsw_sp, | |
2806 | struct mlxsw_sp_nexthop_group *nh_grp) | |
2807 | { | |
e6f3b379 AS |
2808 | if (mlxsw_sp_nexthop_group_type(nh_grp) == AF_INET6 && |
2809 | !nh_grp->gateway) | |
2810 | return 0; | |
2811 | ||
9011b677 | 2812 | return rhashtable_insert_fast(&mlxsw_sp->router->nexthop_group_ht, |
e9ad5e7d IS |
2813 | &nh_grp->ht_node, |
2814 | mlxsw_sp_nexthop_group_ht_params); | |
2815 | } | |
2816 | ||
2817 | static void mlxsw_sp_nexthop_group_remove(struct mlxsw_sp *mlxsw_sp, | |
2818 | struct mlxsw_sp_nexthop_group *nh_grp) | |
2819 | { | |
e6f3b379 AS |
2820 | if (mlxsw_sp_nexthop_group_type(nh_grp) == AF_INET6 && |
2821 | !nh_grp->gateway) | |
2822 | return; | |
2823 | ||
9011b677 | 2824 | rhashtable_remove_fast(&mlxsw_sp->router->nexthop_group_ht, |
e9ad5e7d IS |
2825 | &nh_grp->ht_node, |
2826 | mlxsw_sp_nexthop_group_ht_params); | |
2827 | } | |
2828 | ||
2829 | static struct mlxsw_sp_nexthop_group * | |
ba31d366 AS |
2830 | mlxsw_sp_nexthop4_group_lookup(struct mlxsw_sp *mlxsw_sp, |
2831 | struct fib_info *fi) | |
e9ad5e7d | 2832 | { |
ba31d366 AS |
2833 | struct mlxsw_sp_nexthop_group_cmp_arg cmp_arg; |
2834 | ||
e6f3b379 | 2835 | cmp_arg.proto = MLXSW_SP_L3_PROTO_IPV4; |
ba31d366 AS |
2836 | cmp_arg.fi = fi; |
2837 | return rhashtable_lookup_fast(&mlxsw_sp->router->nexthop_group_ht, | |
2838 | &cmp_arg, | |
e9ad5e7d IS |
2839 | mlxsw_sp_nexthop_group_ht_params); |
2840 | } | |
2841 | ||
e6f3b379 AS |
2842 | static struct mlxsw_sp_nexthop_group * |
2843 | mlxsw_sp_nexthop6_group_lookup(struct mlxsw_sp *mlxsw_sp, | |
2844 | struct mlxsw_sp_fib6_entry *fib6_entry) | |
2845 | { | |
2846 | struct mlxsw_sp_nexthop_group_cmp_arg cmp_arg; | |
2847 | ||
2848 | cmp_arg.proto = MLXSW_SP_L3_PROTO_IPV6; | |
2849 | cmp_arg.fib6_entry = fib6_entry; | |
2850 | return rhashtable_lookup_fast(&mlxsw_sp->router->nexthop_group_ht, | |
2851 | &cmp_arg, | |
2852 | mlxsw_sp_nexthop_group_ht_params); | |
2853 | } | |
2854 | ||
c53b8e1b IS |
2855 | static const struct rhashtable_params mlxsw_sp_nexthop_ht_params = { |
2856 | .key_offset = offsetof(struct mlxsw_sp_nexthop, key), | |
2857 | .head_offset = offsetof(struct mlxsw_sp_nexthop, ht_node), | |
2858 | .key_len = sizeof(struct mlxsw_sp_nexthop_key), | |
2859 | }; | |
2860 | ||
2861 | static int mlxsw_sp_nexthop_insert(struct mlxsw_sp *mlxsw_sp, | |
2862 | struct mlxsw_sp_nexthop *nh) | |
2863 | { | |
9011b677 | 2864 | return rhashtable_insert_fast(&mlxsw_sp->router->nexthop_ht, |
c53b8e1b IS |
2865 | &nh->ht_node, mlxsw_sp_nexthop_ht_params); |
2866 | } | |
2867 | ||
2868 | static void mlxsw_sp_nexthop_remove(struct mlxsw_sp *mlxsw_sp, | |
2869 | struct mlxsw_sp_nexthop *nh) | |
2870 | { | |
9011b677 | 2871 | rhashtable_remove_fast(&mlxsw_sp->router->nexthop_ht, &nh->ht_node, |
c53b8e1b IS |
2872 | mlxsw_sp_nexthop_ht_params); |
2873 | } | |
2874 | ||
ad178c8e IS |
2875 | static struct mlxsw_sp_nexthop * |
2876 | mlxsw_sp_nexthop_lookup(struct mlxsw_sp *mlxsw_sp, | |
2877 | struct mlxsw_sp_nexthop_key key) | |
2878 | { | |
9011b677 | 2879 | return rhashtable_lookup_fast(&mlxsw_sp->router->nexthop_ht, &key, |
ad178c8e IS |
2880 | mlxsw_sp_nexthop_ht_params); |
2881 | } | |
2882 | ||
a7ff87ac | 2883 | static int mlxsw_sp_adj_index_mass_update_vr(struct mlxsw_sp *mlxsw_sp, |
76610ebb | 2884 | const struct mlxsw_sp_fib *fib, |
a7ff87ac JP |
2885 | u32 adj_index, u16 ecmp_size, |
2886 | u32 new_adj_index, | |
2887 | u16 new_ecmp_size) | |
2888 | { | |
2889 | char raleu_pl[MLXSW_REG_RALEU_LEN]; | |
2890 | ||
1a9234e6 | 2891 | mlxsw_reg_raleu_pack(raleu_pl, |
76610ebb IS |
2892 | (enum mlxsw_reg_ralxx_protocol) fib->proto, |
2893 | fib->vr->id, adj_index, ecmp_size, new_adj_index, | |
1a9234e6 | 2894 | new_ecmp_size); |
a7ff87ac JP |
2895 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(raleu), raleu_pl); |
2896 | } | |
2897 | ||
2898 | static int mlxsw_sp_adj_index_mass_update(struct mlxsw_sp *mlxsw_sp, | |
2899 | struct mlxsw_sp_nexthop_group *nh_grp, | |
2900 | u32 old_adj_index, u16 old_ecmp_size) | |
2901 | { | |
2902 | struct mlxsw_sp_fib_entry *fib_entry; | |
76610ebb | 2903 | struct mlxsw_sp_fib *fib = NULL; |
a7ff87ac JP |
2904 | int err; |
2905 | ||
2906 | list_for_each_entry(fib_entry, &nh_grp->fib_list, nexthop_group_node) { | |
76610ebb | 2907 | if (fib == fib_entry->fib_node->fib) |
a7ff87ac | 2908 | continue; |
76610ebb IS |
2909 | fib = fib_entry->fib_node->fib; |
2910 | err = mlxsw_sp_adj_index_mass_update_vr(mlxsw_sp, fib, | |
a7ff87ac JP |
2911 | old_adj_index, |
2912 | old_ecmp_size, | |
2913 | nh_grp->adj_index, | |
2914 | nh_grp->ecmp_size); | |
2915 | if (err) | |
2916 | return err; | |
2917 | } | |
2918 | return 0; | |
2919 | } | |
2920 | ||
eb789980 IS |
2921 | static int __mlxsw_sp_nexthop_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index, |
2922 | struct mlxsw_sp_nexthop *nh) | |
a7ff87ac JP |
2923 | { |
2924 | struct mlxsw_sp_neigh_entry *neigh_entry = nh->neigh_entry; | |
2925 | char ratr_pl[MLXSW_REG_RATR_LEN]; | |
2926 | ||
2927 | mlxsw_reg_ratr_pack(ratr_pl, MLXSW_REG_RATR_OP_WRITE_WRITE_ENTRY, | |
89e41982 PM |
2928 | true, MLXSW_REG_RATR_TYPE_ETHERNET, |
2929 | adj_index, neigh_entry->rif); | |
a7ff87ac | 2930 | mlxsw_reg_ratr_eth_entry_pack(ratr_pl, neigh_entry->ha); |
a5390278 AS |
2931 | if (nh->counter_valid) |
2932 | mlxsw_reg_ratr_counter_pack(ratr_pl, nh->counter_index, true); | |
2933 | else | |
2934 | mlxsw_reg_ratr_counter_pack(ratr_pl, 0, false); | |
2935 | ||
a7ff87ac JP |
2936 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ratr), ratr_pl); |
2937 | } | |
2938 | ||
eb789980 IS |
2939 | int mlxsw_sp_nexthop_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index, |
2940 | struct mlxsw_sp_nexthop *nh) | |
2941 | { | |
2942 | int i; | |
2943 | ||
2944 | for (i = 0; i < nh->num_adj_entries; i++) { | |
2945 | int err; | |
2946 | ||
2947 | err = __mlxsw_sp_nexthop_update(mlxsw_sp, adj_index + i, nh); | |
2948 | if (err) | |
2949 | return err; | |
2950 | } | |
2951 | ||
2952 | return 0; | |
2953 | } | |
2954 | ||
2955 | static int __mlxsw_sp_nexthop_ipip_update(struct mlxsw_sp *mlxsw_sp, | |
2956 | u32 adj_index, | |
2957 | struct mlxsw_sp_nexthop *nh) | |
1012b9ac PM |
2958 | { |
2959 | const struct mlxsw_sp_ipip_ops *ipip_ops; | |
2960 | ||
2961 | ipip_ops = mlxsw_sp->router->ipip_ops_arr[nh->ipip_entry->ipipt]; | |
2962 | return ipip_ops->nexthop_update(mlxsw_sp, adj_index, nh->ipip_entry); | |
2963 | } | |
2964 | ||
eb789980 IS |
2965 | static int mlxsw_sp_nexthop_ipip_update(struct mlxsw_sp *mlxsw_sp, |
2966 | u32 adj_index, | |
2967 | struct mlxsw_sp_nexthop *nh) | |
2968 | { | |
2969 | int i; | |
2970 | ||
2971 | for (i = 0; i < nh->num_adj_entries; i++) { | |
2972 | int err; | |
2973 | ||
2974 | err = __mlxsw_sp_nexthop_ipip_update(mlxsw_sp, adj_index + i, | |
2975 | nh); | |
2976 | if (err) | |
2977 | return err; | |
2978 | } | |
2979 | ||
2980 | return 0; | |
2981 | } | |
2982 | ||
a7ff87ac | 2983 | static int |
35225e47 PM |
2984 | mlxsw_sp_nexthop_group_update(struct mlxsw_sp *mlxsw_sp, |
2985 | struct mlxsw_sp_nexthop_group *nh_grp, | |
2986 | bool reallocate) | |
a7ff87ac JP |
2987 | { |
2988 | u32 adj_index = nh_grp->adj_index; /* base */ | |
2989 | struct mlxsw_sp_nexthop *nh; | |
2990 | int i; | |
2991 | int err; | |
2992 | ||
2993 | for (i = 0; i < nh_grp->count; i++) { | |
2994 | nh = &nh_grp->nexthops[i]; | |
2995 | ||
2996 | if (!nh->should_offload) { | |
2997 | nh->offloaded = 0; | |
2998 | continue; | |
2999 | } | |
3000 | ||
a59b7e02 | 3001 | if (nh->update || reallocate) { |
35225e47 PM |
3002 | switch (nh->type) { |
3003 | case MLXSW_SP_NEXTHOP_TYPE_ETH: | |
a5390278 | 3004 | err = mlxsw_sp_nexthop_update |
35225e47 PM |
3005 | (mlxsw_sp, adj_index, nh); |
3006 | break; | |
1012b9ac PM |
3007 | case MLXSW_SP_NEXTHOP_TYPE_IPIP: |
3008 | err = mlxsw_sp_nexthop_ipip_update | |
3009 | (mlxsw_sp, adj_index, nh); | |
3010 | break; | |
35225e47 | 3011 | } |
a7ff87ac JP |
3012 | if (err) |
3013 | return err; | |
3014 | nh->update = 0; | |
3015 | nh->offloaded = 1; | |
3016 | } | |
eb789980 | 3017 | adj_index += nh->num_adj_entries; |
a7ff87ac JP |
3018 | } |
3019 | return 0; | |
3020 | } | |
3021 | ||
1819ae3d IS |
3022 | static bool |
3023 | mlxsw_sp_fib_node_entry_is_first(const struct mlxsw_sp_fib_node *fib_node, | |
3024 | const struct mlxsw_sp_fib_entry *fib_entry); | |
3025 | ||
a7ff87ac JP |
3026 | static int |
3027 | mlxsw_sp_nexthop_fib_entries_update(struct mlxsw_sp *mlxsw_sp, | |
3028 | struct mlxsw_sp_nexthop_group *nh_grp) | |
3029 | { | |
3030 | struct mlxsw_sp_fib_entry *fib_entry; | |
3031 | int err; | |
3032 | ||
3033 | list_for_each_entry(fib_entry, &nh_grp->fib_list, nexthop_group_node) { | |
1819ae3d IS |
3034 | if (!mlxsw_sp_fib_node_entry_is_first(fib_entry->fib_node, |
3035 | fib_entry)) | |
3036 | continue; | |
a7ff87ac JP |
3037 | err = mlxsw_sp_fib_entry_update(mlxsw_sp, fib_entry); |
3038 | if (err) | |
3039 | return err; | |
3040 | } | |
3041 | return 0; | |
3042 | } | |
3043 | ||
77d964e6 IS |
3044 | static void |
3045 | mlxsw_sp_fib_entry_offload_refresh(struct mlxsw_sp_fib_entry *fib_entry, | |
3046 | enum mlxsw_reg_ralue_op op, int err); | |
3047 | ||
3048 | static void | |
3049 | mlxsw_sp_nexthop_fib_entries_refresh(struct mlxsw_sp_nexthop_group *nh_grp) | |
3050 | { | |
3051 | enum mlxsw_reg_ralue_op op = MLXSW_REG_RALUE_OP_WRITE_WRITE; | |
3052 | struct mlxsw_sp_fib_entry *fib_entry; | |
3053 | ||
3054 | list_for_each_entry(fib_entry, &nh_grp->fib_list, nexthop_group_node) { | |
3055 | if (!mlxsw_sp_fib_node_entry_is_first(fib_entry->fib_node, | |
3056 | fib_entry)) | |
3057 | continue; | |
3058 | mlxsw_sp_fib_entry_offload_refresh(fib_entry, op, 0); | |
3059 | } | |
3060 | } | |
3061 | ||
425a08c6 IS |
3062 | static void mlxsw_sp_adj_grp_size_round_up(u16 *p_adj_grp_size) |
3063 | { | |
3064 | /* Valid sizes for an adjacency group are: | |
3065 | * 1-64, 512, 1024, 2048 and 4096. | |
3066 | */ | |
3067 | if (*p_adj_grp_size <= 64) | |
3068 | return; | |
3069 | else if (*p_adj_grp_size <= 512) | |
3070 | *p_adj_grp_size = 512; | |
3071 | else if (*p_adj_grp_size <= 1024) | |
3072 | *p_adj_grp_size = 1024; | |
3073 | else if (*p_adj_grp_size <= 2048) | |
3074 | *p_adj_grp_size = 2048; | |
3075 | else | |
3076 | *p_adj_grp_size = 4096; | |
3077 | } | |
3078 | ||
3079 | static void mlxsw_sp_adj_grp_size_round_down(u16 *p_adj_grp_size, | |
3080 | unsigned int alloc_size) | |
3081 | { | |
3082 | if (alloc_size >= 4096) | |
3083 | *p_adj_grp_size = 4096; | |
3084 | else if (alloc_size >= 2048) | |
3085 | *p_adj_grp_size = 2048; | |
3086 | else if (alloc_size >= 1024) | |
3087 | *p_adj_grp_size = 1024; | |
3088 | else if (alloc_size >= 512) | |
3089 | *p_adj_grp_size = 512; | |
3090 | } | |
3091 | ||
3092 | static int mlxsw_sp_fix_adj_grp_size(struct mlxsw_sp *mlxsw_sp, | |
3093 | u16 *p_adj_grp_size) | |
3094 | { | |
3095 | unsigned int alloc_size; | |
3096 | int err; | |
3097 | ||
3098 | /* Round up the requested group size to the next size supported | |
3099 | * by the device and make sure the request can be satisfied. | |
3100 | */ | |
3101 | mlxsw_sp_adj_grp_size_round_up(p_adj_grp_size); | |
3102 | err = mlxsw_sp_kvdl_alloc_size_query(mlxsw_sp, *p_adj_grp_size, | |
3103 | &alloc_size); | |
3104 | if (err) | |
3105 | return err; | |
3106 | /* It is possible the allocation results in more allocated | |
3107 | * entries than requested. Try to use as much of them as | |
3108 | * possible. | |
3109 | */ | |
3110 | mlxsw_sp_adj_grp_size_round_down(p_adj_grp_size, alloc_size); | |
3111 | ||
3112 | return 0; | |
3113 | } | |
3114 | ||
eb789980 IS |
3115 | static void |
3116 | mlxsw_sp_nexthop_group_normalize(struct mlxsw_sp_nexthop_group *nh_grp) | |
3117 | { | |
3118 | int i, g = 0, sum_norm_weight = 0; | |
3119 | struct mlxsw_sp_nexthop *nh; | |
3120 | ||
3121 | for (i = 0; i < nh_grp->count; i++) { | |
3122 | nh = &nh_grp->nexthops[i]; | |
3123 | ||
3124 | if (!nh->should_offload) | |
3125 | continue; | |
3126 | if (g > 0) | |
3127 | g = gcd(nh->nh_weight, g); | |
3128 | else | |
3129 | g = nh->nh_weight; | |
3130 | } | |
3131 | ||
3132 | for (i = 0; i < nh_grp->count; i++) { | |
3133 | nh = &nh_grp->nexthops[i]; | |
3134 | ||
3135 | if (!nh->should_offload) | |
3136 | continue; | |
3137 | nh->norm_nh_weight = nh->nh_weight / g; | |
3138 | sum_norm_weight += nh->norm_nh_weight; | |
3139 | } | |
3140 | ||
3141 | nh_grp->sum_norm_weight = sum_norm_weight; | |
3142 | } | |
3143 | ||
3144 | static void | |
3145 | mlxsw_sp_nexthop_group_rebalance(struct mlxsw_sp_nexthop_group *nh_grp) | |
3146 | { | |
3147 | int total = nh_grp->sum_norm_weight; | |
3148 | u16 ecmp_size = nh_grp->ecmp_size; | |
3149 | int i, weight = 0, lower_bound = 0; | |
3150 | ||
3151 | for (i = 0; i < nh_grp->count; i++) { | |
3152 | struct mlxsw_sp_nexthop *nh = &nh_grp->nexthops[i]; | |
3153 | int upper_bound; | |
3154 | ||
3155 | if (!nh->should_offload) | |
3156 | continue; | |
3157 | weight += nh->norm_nh_weight; | |
3158 | upper_bound = DIV_ROUND_CLOSEST(ecmp_size * weight, total); | |
3159 | nh->num_adj_entries = upper_bound - lower_bound; | |
3160 | lower_bound = upper_bound; | |
3161 | } | |
3162 | } | |
3163 | ||
a7ff87ac JP |
3164 | static void |
3165 | mlxsw_sp_nexthop_group_refresh(struct mlxsw_sp *mlxsw_sp, | |
3166 | struct mlxsw_sp_nexthop_group *nh_grp) | |
3167 | { | |
eb789980 | 3168 | u16 ecmp_size, old_ecmp_size; |
a7ff87ac JP |
3169 | struct mlxsw_sp_nexthop *nh; |
3170 | bool offload_change = false; | |
3171 | u32 adj_index; | |
a7ff87ac JP |
3172 | bool old_adj_index_valid; |
3173 | u32 old_adj_index; | |
a7ff87ac JP |
3174 | int i; |
3175 | int err; | |
3176 | ||
b3e8d1eb IS |
3177 | if (!nh_grp->gateway) { |
3178 | mlxsw_sp_nexthop_fib_entries_update(mlxsw_sp, nh_grp); | |
3179 | return; | |
3180 | } | |
3181 | ||
a7ff87ac JP |
3182 | for (i = 0; i < nh_grp->count; i++) { |
3183 | nh = &nh_grp->nexthops[i]; | |
3184 | ||
56b8a9ed | 3185 | if (nh->should_offload != nh->offloaded) { |
a7ff87ac JP |
3186 | offload_change = true; |
3187 | if (nh->should_offload) | |
3188 | nh->update = 1; | |
3189 | } | |
a7ff87ac JP |
3190 | } |
3191 | if (!offload_change) { | |
3192 | /* Nothing was added or removed, so no need to reallocate. Just | |
3193 | * update MAC on existing adjacency indexes. | |
3194 | */ | |
35225e47 | 3195 | err = mlxsw_sp_nexthop_group_update(mlxsw_sp, nh_grp, false); |
a7ff87ac JP |
3196 | if (err) { |
3197 | dev_warn(mlxsw_sp->bus_info->dev, "Failed to update neigh MAC in adjacency table.\n"); | |
3198 | goto set_trap; | |
3199 | } | |
3200 | return; | |
3201 | } | |
eb789980 IS |
3202 | mlxsw_sp_nexthop_group_normalize(nh_grp); |
3203 | if (!nh_grp->sum_norm_weight) | |
a7ff87ac JP |
3204 | /* No neigh of this group is connected so we just set |
3205 | * the trap and let everthing flow through kernel. | |
3206 | */ | |
3207 | goto set_trap; | |
3208 | ||
eb789980 | 3209 | ecmp_size = nh_grp->sum_norm_weight; |
425a08c6 IS |
3210 | err = mlxsw_sp_fix_adj_grp_size(mlxsw_sp, &ecmp_size); |
3211 | if (err) | |
3212 | /* No valid allocation size available. */ | |
3213 | goto set_trap; | |
3214 | ||
13124443 AS |
3215 | err = mlxsw_sp_kvdl_alloc(mlxsw_sp, ecmp_size, &adj_index); |
3216 | if (err) { | |
a7ff87ac JP |
3217 | /* We ran out of KVD linear space, just set the |
3218 | * trap and let everything flow through kernel. | |
3219 | */ | |
3220 | dev_warn(mlxsw_sp->bus_info->dev, "Failed to allocate KVD linear area for nexthop group.\n"); | |
3221 | goto set_trap; | |
3222 | } | |
a7ff87ac JP |
3223 | old_adj_index_valid = nh_grp->adj_index_valid; |
3224 | old_adj_index = nh_grp->adj_index; | |
3225 | old_ecmp_size = nh_grp->ecmp_size; | |
3226 | nh_grp->adj_index_valid = 1; | |
3227 | nh_grp->adj_index = adj_index; | |
3228 | nh_grp->ecmp_size = ecmp_size; | |
eb789980 | 3229 | mlxsw_sp_nexthop_group_rebalance(nh_grp); |
35225e47 | 3230 | err = mlxsw_sp_nexthop_group_update(mlxsw_sp, nh_grp, true); |
a7ff87ac JP |
3231 | if (err) { |
3232 | dev_warn(mlxsw_sp->bus_info->dev, "Failed to update neigh MAC in adjacency table.\n"); | |
3233 | goto set_trap; | |
3234 | } | |
3235 | ||
3236 | if (!old_adj_index_valid) { | |
3237 | /* The trap was set for fib entries, so we have to call | |
3238 | * fib entry update to unset it and use adjacency index. | |
3239 | */ | |
3240 | err = mlxsw_sp_nexthop_fib_entries_update(mlxsw_sp, nh_grp); | |
3241 | if (err) { | |
3242 | dev_warn(mlxsw_sp->bus_info->dev, "Failed to add adjacency index to fib entries.\n"); | |
3243 | goto set_trap; | |
3244 | } | |
3245 | return; | |
3246 | } | |
3247 | ||
3248 | err = mlxsw_sp_adj_index_mass_update(mlxsw_sp, nh_grp, | |
3249 | old_adj_index, old_ecmp_size); | |
3250 | mlxsw_sp_kvdl_free(mlxsw_sp, old_adj_index); | |
3251 | if (err) { | |
3252 | dev_warn(mlxsw_sp->bus_info->dev, "Failed to mass-update adjacency index for nexthop group.\n"); | |
3253 | goto set_trap; | |
3254 | } | |
77d964e6 IS |
3255 | |
3256 | /* Offload state within the group changed, so update the flags. */ | |
3257 | mlxsw_sp_nexthop_fib_entries_refresh(nh_grp); | |
3258 | ||
a7ff87ac JP |
3259 | return; |
3260 | ||
3261 | set_trap: | |
3262 | old_adj_index_valid = nh_grp->adj_index_valid; | |
3263 | nh_grp->adj_index_valid = 0; | |
3264 | for (i = 0; i < nh_grp->count; i++) { | |
3265 | nh = &nh_grp->nexthops[i]; | |
3266 | nh->offloaded = 0; | |
3267 | } | |
3268 | err = mlxsw_sp_nexthop_fib_entries_update(mlxsw_sp, nh_grp); | |
3269 | if (err) | |
3270 | dev_warn(mlxsw_sp->bus_info->dev, "Failed to set traps for fib entries.\n"); | |
3271 | if (old_adj_index_valid) | |
3272 | mlxsw_sp_kvdl_free(mlxsw_sp, nh_grp->adj_index); | |
3273 | } | |
3274 | ||
3275 | static void __mlxsw_sp_nexthop_neigh_update(struct mlxsw_sp_nexthop *nh, | |
3276 | bool removing) | |
3277 | { | |
213666a3 | 3278 | if (!removing) |
a7ff87ac | 3279 | nh->should_offload = 1; |
8764a826 | 3280 | else |
a7ff87ac JP |
3281 | nh->should_offload = 0; |
3282 | nh->update = 1; | |
3283 | } | |
3284 | ||
3285 | static void | |
3286 | mlxsw_sp_nexthop_neigh_update(struct mlxsw_sp *mlxsw_sp, | |
3287 | struct mlxsw_sp_neigh_entry *neigh_entry, | |
3288 | bool removing) | |
3289 | { | |
3290 | struct mlxsw_sp_nexthop *nh; | |
3291 | ||
a7ff87ac JP |
3292 | list_for_each_entry(nh, &neigh_entry->nexthop_list, |
3293 | neigh_list_node) { | |
3294 | __mlxsw_sp_nexthop_neigh_update(nh, removing); | |
3295 | mlxsw_sp_nexthop_group_refresh(mlxsw_sp, nh->nh_grp); | |
3296 | } | |
a7ff87ac JP |
3297 | } |
3298 | ||
9665b745 | 3299 | static void mlxsw_sp_nexthop_rif_init(struct mlxsw_sp_nexthop *nh, |
bf95233e | 3300 | struct mlxsw_sp_rif *rif) |
9665b745 | 3301 | { |
bf95233e | 3302 | if (nh->rif) |
9665b745 IS |
3303 | return; |
3304 | ||
bf95233e AS |
3305 | nh->rif = rif; |
3306 | list_add(&nh->rif_list_node, &rif->nexthop_list); | |
9665b745 IS |
3307 | } |
3308 | ||
3309 | static void mlxsw_sp_nexthop_rif_fini(struct mlxsw_sp_nexthop *nh) | |
3310 | { | |
bf95233e | 3311 | if (!nh->rif) |
9665b745 IS |
3312 | return; |
3313 | ||
3314 | list_del(&nh->rif_list_node); | |
bf95233e | 3315 | nh->rif = NULL; |
9665b745 IS |
3316 | } |
3317 | ||
a8c97014 IS |
3318 | static int mlxsw_sp_nexthop_neigh_init(struct mlxsw_sp *mlxsw_sp, |
3319 | struct mlxsw_sp_nexthop *nh) | |
a7ff87ac JP |
3320 | { |
3321 | struct mlxsw_sp_neigh_entry *neigh_entry; | |
a7ff87ac | 3322 | struct neighbour *n; |
93a87e5e | 3323 | u8 nud_state, dead; |
c53b8e1b IS |
3324 | int err; |
3325 | ||
ad178c8e | 3326 | if (!nh->nh_grp->gateway || nh->neigh_entry) |
b8399a1e IS |
3327 | return 0; |
3328 | ||
33b1341c | 3329 | /* Take a reference of neigh here ensuring that neigh would |
8de3c178 | 3330 | * not be destructed before the nexthop entry is finished. |
33b1341c | 3331 | * The reference is taken either in neigh_lookup() or |
fd76d910 | 3332 | * in neigh_create() in case n is not found. |
33b1341c | 3333 | */ |
58adf2c4 | 3334 | n = neigh_lookup(nh->nh_grp->neigh_tbl, &nh->gw_addr, nh->rif->dev); |
33b1341c | 3335 | if (!n) { |
58adf2c4 IS |
3336 | n = neigh_create(nh->nh_grp->neigh_tbl, &nh->gw_addr, |
3337 | nh->rif->dev); | |
a8c97014 IS |
3338 | if (IS_ERR(n)) |
3339 | return PTR_ERR(n); | |
a7ff87ac | 3340 | neigh_event_send(n, NULL); |
33b1341c JP |
3341 | } |
3342 | neigh_entry = mlxsw_sp_neigh_entry_lookup(mlxsw_sp, n); | |
3343 | if (!neigh_entry) { | |
5c8802f1 IS |
3344 | neigh_entry = mlxsw_sp_neigh_entry_create(mlxsw_sp, n); |
3345 | if (IS_ERR(neigh_entry)) { | |
c53b8e1b IS |
3346 | err = -EINVAL; |
3347 | goto err_neigh_entry_create; | |
5c8802f1 | 3348 | } |
a7ff87ac | 3349 | } |
b2157149 YG |
3350 | |
3351 | /* If that is the first nexthop connected to that neigh, add to | |
3352 | * nexthop_neighs_list | |
3353 | */ | |
3354 | if (list_empty(&neigh_entry->nexthop_list)) | |
3355 | list_add_tail(&neigh_entry->nexthop_neighs_list_node, | |
9011b677 | 3356 | &mlxsw_sp->router->nexthop_neighs_list); |
b2157149 | 3357 | |
a7ff87ac JP |
3358 | nh->neigh_entry = neigh_entry; |
3359 | list_add_tail(&nh->neigh_list_node, &neigh_entry->nexthop_list); | |
3360 | read_lock_bh(&n->lock); | |
3361 | nud_state = n->nud_state; | |
93a87e5e | 3362 | dead = n->dead; |
a7ff87ac | 3363 | read_unlock_bh(&n->lock); |
93a87e5e | 3364 | __mlxsw_sp_nexthop_neigh_update(nh, !(nud_state & NUD_VALID && !dead)); |
a7ff87ac JP |
3365 | |
3366 | return 0; | |
c53b8e1b IS |
3367 | |
3368 | err_neigh_entry_create: | |
3369 | neigh_release(n); | |
c53b8e1b | 3370 | return err; |
a7ff87ac JP |
3371 | } |
3372 | ||
a8c97014 IS |
3373 | static void mlxsw_sp_nexthop_neigh_fini(struct mlxsw_sp *mlxsw_sp, |
3374 | struct mlxsw_sp_nexthop *nh) | |
a7ff87ac JP |
3375 | { |
3376 | struct mlxsw_sp_neigh_entry *neigh_entry = nh->neigh_entry; | |
a8c97014 | 3377 | struct neighbour *n; |
a7ff87ac | 3378 | |
b8399a1e | 3379 | if (!neigh_entry) |
a8c97014 IS |
3380 | return; |
3381 | n = neigh_entry->key.n; | |
b8399a1e | 3382 | |
58312125 | 3383 | __mlxsw_sp_nexthop_neigh_update(nh, true); |
a7ff87ac | 3384 | list_del(&nh->neigh_list_node); |
e58be79e | 3385 | nh->neigh_entry = NULL; |
b2157149 YG |
3386 | |
3387 | /* If that is the last nexthop connected to that neigh, remove from | |
3388 | * nexthop_neighs_list | |
3389 | */ | |
e58be79e IS |
3390 | if (list_empty(&neigh_entry->nexthop_list)) |
3391 | list_del(&neigh_entry->nexthop_neighs_list_node); | |
b2157149 | 3392 | |
5c8802f1 IS |
3393 | if (!neigh_entry->connected && list_empty(&neigh_entry->nexthop_list)) |
3394 | mlxsw_sp_neigh_entry_destroy(mlxsw_sp, neigh_entry); | |
3395 | ||
3396 | neigh_release(n); | |
a8c97014 | 3397 | } |
c53b8e1b | 3398 | |
44b0fff1 PM |
3399 | static bool mlxsw_sp_ipip_netdev_ul_up(struct net_device *ol_dev) |
3400 | { | |
3401 | struct net_device *ul_dev = __mlxsw_sp_ipip_netdev_ul_dev_get(ol_dev); | |
3402 | ||
3403 | return ul_dev ? (ul_dev->flags & IFF_UP) : true; | |
3404 | } | |
3405 | ||
d97cda5f PM |
3406 | static void mlxsw_sp_nexthop_ipip_init(struct mlxsw_sp *mlxsw_sp, |
3407 | struct mlxsw_sp_nexthop *nh, | |
3408 | struct mlxsw_sp_ipip_entry *ipip_entry) | |
1012b9ac | 3409 | { |
44b0fff1 PM |
3410 | bool removing; |
3411 | ||
1012b9ac | 3412 | if (!nh->nh_grp->gateway || nh->ipip_entry) |
d97cda5f | 3413 | return; |
1012b9ac | 3414 | |
d97cda5f PM |
3415 | nh->ipip_entry = ipip_entry; |
3416 | removing = !mlxsw_sp_ipip_netdev_ul_up(ipip_entry->ol_dev); | |
44b0fff1 | 3417 | __mlxsw_sp_nexthop_neigh_update(nh, removing); |
d97cda5f | 3418 | mlxsw_sp_nexthop_rif_init(nh, &ipip_entry->ol_lb->common); |
1012b9ac PM |
3419 | } |
3420 | ||
3421 | static void mlxsw_sp_nexthop_ipip_fini(struct mlxsw_sp *mlxsw_sp, | |
3422 | struct mlxsw_sp_nexthop *nh) | |
3423 | { | |
3424 | struct mlxsw_sp_ipip_entry *ipip_entry = nh->ipip_entry; | |
3425 | ||
3426 | if (!ipip_entry) | |
3427 | return; | |
3428 | ||
3429 | __mlxsw_sp_nexthop_neigh_update(nh, true); | |
1012b9ac PM |
3430 | nh->ipip_entry = NULL; |
3431 | } | |
3432 | ||
3433 | static bool mlxsw_sp_nexthop4_ipip_type(const struct mlxsw_sp *mlxsw_sp, | |
3434 | const struct fib_nh *fib_nh, | |
3435 | enum mlxsw_sp_ipip_type *p_ipipt) | |
3436 | { | |
3437 | struct net_device *dev = fib_nh->nh_dev; | |
3438 | ||
3439 | return dev && | |
3440 | fib_nh->nh_parent->fib_type == RTN_UNICAST && | |
3441 | mlxsw_sp_netdev_ipip_type(mlxsw_sp, dev, p_ipipt); | |
3442 | } | |
3443 | ||
35225e47 PM |
3444 | static void mlxsw_sp_nexthop_type_fini(struct mlxsw_sp *mlxsw_sp, |
3445 | struct mlxsw_sp_nexthop *nh) | |
3446 | { | |
3447 | switch (nh->type) { | |
3448 | case MLXSW_SP_NEXTHOP_TYPE_ETH: | |
3449 | mlxsw_sp_nexthop_neigh_fini(mlxsw_sp, nh); | |
3450 | mlxsw_sp_nexthop_rif_fini(nh); | |
3451 | break; | |
1012b9ac | 3452 | case MLXSW_SP_NEXTHOP_TYPE_IPIP: |
de0f43c0 | 3453 | mlxsw_sp_nexthop_rif_fini(nh); |
1012b9ac PM |
3454 | mlxsw_sp_nexthop_ipip_fini(mlxsw_sp, nh); |
3455 | break; | |
35225e47 PM |
3456 | } |
3457 | } | |
3458 | ||
3459 | static int mlxsw_sp_nexthop4_type_init(struct mlxsw_sp *mlxsw_sp, | |
3460 | struct mlxsw_sp_nexthop *nh, | |
3461 | struct fib_nh *fib_nh) | |
3462 | { | |
d97cda5f | 3463 | const struct mlxsw_sp_ipip_ops *ipip_ops; |
35225e47 | 3464 | struct net_device *dev = fib_nh->nh_dev; |
d97cda5f | 3465 | struct mlxsw_sp_ipip_entry *ipip_entry; |
35225e47 PM |
3466 | struct mlxsw_sp_rif *rif; |
3467 | int err; | |
3468 | ||
d97cda5f PM |
3469 | ipip_entry = mlxsw_sp_ipip_entry_find_by_ol_dev(mlxsw_sp, dev); |
3470 | if (ipip_entry) { | |
3471 | ipip_ops = mlxsw_sp->router->ipip_ops_arr[ipip_entry->ipipt]; | |
3472 | if (ipip_ops->can_offload(mlxsw_sp, dev, | |
3473 | MLXSW_SP_L3_PROTO_IPV4)) { | |
3474 | nh->type = MLXSW_SP_NEXTHOP_TYPE_IPIP; | |
3475 | mlxsw_sp_nexthop_ipip_init(mlxsw_sp, nh, ipip_entry); | |
3476 | return 0; | |
3477 | } | |
1012b9ac PM |
3478 | } |
3479 | ||
35225e47 PM |
3480 | nh->type = MLXSW_SP_NEXTHOP_TYPE_ETH; |
3481 | rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev); | |
3482 | if (!rif) | |
3483 | return 0; | |
3484 | ||
3485 | mlxsw_sp_nexthop_rif_init(nh, rif); | |
3486 | err = mlxsw_sp_nexthop_neigh_init(mlxsw_sp, nh); | |
3487 | if (err) | |
3488 | goto err_neigh_init; | |
3489 | ||
3490 | return 0; | |
3491 | ||
3492 | err_neigh_init: | |
3493 | mlxsw_sp_nexthop_rif_fini(nh); | |
3494 | return err; | |
3495 | } | |
3496 | ||
3497 | static void mlxsw_sp_nexthop4_type_fini(struct mlxsw_sp *mlxsw_sp, | |
3498 | struct mlxsw_sp_nexthop *nh) | |
3499 | { | |
3500 | mlxsw_sp_nexthop_type_fini(mlxsw_sp, nh); | |
3501 | } | |
3502 | ||
0e6ea2a4 IS |
3503 | static int mlxsw_sp_nexthop4_init(struct mlxsw_sp *mlxsw_sp, |
3504 | struct mlxsw_sp_nexthop_group *nh_grp, | |
3505 | struct mlxsw_sp_nexthop *nh, | |
3506 | struct fib_nh *fib_nh) | |
a8c97014 IS |
3507 | { |
3508 | struct net_device *dev = fib_nh->nh_dev; | |
df6dd79b | 3509 | struct in_device *in_dev; |
a8c97014 IS |
3510 | int err; |
3511 | ||
3512 | nh->nh_grp = nh_grp; | |
3513 | nh->key.fib_nh = fib_nh; | |
408bd946 IS |
3514 | #ifdef CONFIG_IP_ROUTE_MULTIPATH |
3515 | nh->nh_weight = fib_nh->nh_weight; | |
3516 | #else | |
3517 | nh->nh_weight = 1; | |
3518 | #endif | |
58adf2c4 | 3519 | memcpy(&nh->gw_addr, &fib_nh->nh_gw, sizeof(fib_nh->nh_gw)); |
a8c97014 IS |
3520 | err = mlxsw_sp_nexthop_insert(mlxsw_sp, nh); |
3521 | if (err) | |
3522 | return err; | |
3523 | ||
a5390278 | 3524 | mlxsw_sp_nexthop_counter_alloc(mlxsw_sp, nh); |
dbe4598c AS |
3525 | list_add_tail(&nh->router_list_node, &mlxsw_sp->router->nexthop_list); |
3526 | ||
97989ee0 IS |
3527 | if (!dev) |
3528 | return 0; | |
3529 | ||
df6dd79b IS |
3530 | in_dev = __in_dev_get_rtnl(dev); |
3531 | if (in_dev && IN_DEV_IGNORE_ROUTES_WITH_LINKDOWN(in_dev) && | |
3532 | fib_nh->nh_flags & RTNH_F_LINKDOWN) | |
3533 | return 0; | |
3534 | ||
35225e47 | 3535 | err = mlxsw_sp_nexthop4_type_init(mlxsw_sp, nh, fib_nh); |
a8c97014 IS |
3536 | if (err) |
3537 | goto err_nexthop_neigh_init; | |
3538 | ||
3539 | return 0; | |
3540 | ||
3541 | err_nexthop_neigh_init: | |
3542 | mlxsw_sp_nexthop_remove(mlxsw_sp, nh); | |
3543 | return err; | |
3544 | } | |
3545 | ||
0e6ea2a4 IS |
3546 | static void mlxsw_sp_nexthop4_fini(struct mlxsw_sp *mlxsw_sp, |
3547 | struct mlxsw_sp_nexthop *nh) | |
a8c97014 | 3548 | { |
35225e47 | 3549 | mlxsw_sp_nexthop4_type_fini(mlxsw_sp, nh); |
dbe4598c | 3550 | list_del(&nh->router_list_node); |
a5390278 | 3551 | mlxsw_sp_nexthop_counter_free(mlxsw_sp, nh); |
c53b8e1b | 3552 | mlxsw_sp_nexthop_remove(mlxsw_sp, nh); |
a7ff87ac JP |
3553 | } |
3554 | ||
0e6ea2a4 IS |
3555 | static void mlxsw_sp_nexthop4_event(struct mlxsw_sp *mlxsw_sp, |
3556 | unsigned long event, struct fib_nh *fib_nh) | |
ad178c8e IS |
3557 | { |
3558 | struct mlxsw_sp_nexthop_key key; | |
3559 | struct mlxsw_sp_nexthop *nh; | |
ad178c8e | 3560 | |
9011b677 | 3561 | if (mlxsw_sp->router->aborted) |
ad178c8e IS |
3562 | return; |
3563 | ||
3564 | key.fib_nh = fib_nh; | |
3565 | nh = mlxsw_sp_nexthop_lookup(mlxsw_sp, key); | |
3566 | if (WARN_ON_ONCE(!nh)) | |
3567 | return; | |
3568 | ||
ad178c8e IS |
3569 | switch (event) { |
3570 | case FIB_EVENT_NH_ADD: | |
35225e47 | 3571 | mlxsw_sp_nexthop4_type_init(mlxsw_sp, nh, fib_nh); |
ad178c8e IS |
3572 | break; |
3573 | case FIB_EVENT_NH_DEL: | |
35225e47 | 3574 | mlxsw_sp_nexthop4_type_fini(mlxsw_sp, nh); |
ad178c8e IS |
3575 | break; |
3576 | } | |
3577 | ||
3578 | mlxsw_sp_nexthop_group_refresh(mlxsw_sp, nh->nh_grp); | |
3579 | } | |
3580 | ||
0c5f1cd5 PM |
3581 | static void mlxsw_sp_nexthop_rif_update(struct mlxsw_sp *mlxsw_sp, |
3582 | struct mlxsw_sp_rif *rif) | |
3583 | { | |
3584 | struct mlxsw_sp_nexthop *nh; | |
44b0fff1 | 3585 | bool removing; |
0c5f1cd5 PM |
3586 | |
3587 | list_for_each_entry(nh, &rif->nexthop_list, rif_list_node) { | |
44b0fff1 PM |
3588 | switch (nh->type) { |
3589 | case MLXSW_SP_NEXTHOP_TYPE_ETH: | |
3590 | removing = false; | |
3591 | break; | |
3592 | case MLXSW_SP_NEXTHOP_TYPE_IPIP: | |
3593 | removing = !mlxsw_sp_ipip_netdev_ul_up(rif->dev); | |
3594 | break; | |
3595 | default: | |
3596 | WARN_ON(1); | |
3597 | continue; | |
3598 | } | |
3599 | ||
3600 | __mlxsw_sp_nexthop_neigh_update(nh, removing); | |
0c5f1cd5 PM |
3601 | mlxsw_sp_nexthop_group_refresh(mlxsw_sp, nh->nh_grp); |
3602 | } | |
3603 | } | |
3604 | ||
09dbf629 PM |
3605 | static void mlxsw_sp_nexthop_rif_migrate(struct mlxsw_sp *mlxsw_sp, |
3606 | struct mlxsw_sp_rif *old_rif, | |
3607 | struct mlxsw_sp_rif *new_rif) | |
3608 | { | |
3609 | struct mlxsw_sp_nexthop *nh; | |
3610 | ||
3611 | list_splice_init(&old_rif->nexthop_list, &new_rif->nexthop_list); | |
3612 | list_for_each_entry(nh, &new_rif->nexthop_list, rif_list_node) | |
3613 | nh->rif = new_rif; | |
3614 | mlxsw_sp_nexthop_rif_update(mlxsw_sp, new_rif); | |
3615 | } | |
3616 | ||
9665b745 | 3617 | static void mlxsw_sp_nexthop_rif_gone_sync(struct mlxsw_sp *mlxsw_sp, |
bf95233e | 3618 | struct mlxsw_sp_rif *rif) |
9665b745 IS |
3619 | { |
3620 | struct mlxsw_sp_nexthop *nh, *tmp; | |
3621 | ||
bf95233e | 3622 | list_for_each_entry_safe(nh, tmp, &rif->nexthop_list, rif_list_node) { |
35225e47 | 3623 | mlxsw_sp_nexthop_type_fini(mlxsw_sp, nh); |
9665b745 IS |
3624 | mlxsw_sp_nexthop_group_refresh(mlxsw_sp, nh->nh_grp); |
3625 | } | |
3626 | } | |
3627 | ||
9b01451a PM |
3628 | static bool mlxsw_sp_fi_is_gateway(const struct mlxsw_sp *mlxsw_sp, |
3629 | const struct fib_info *fi) | |
3630 | { | |
1012b9ac PM |
3631 | return fi->fib_nh->nh_scope == RT_SCOPE_LINK || |
3632 | mlxsw_sp_nexthop4_ipip_type(mlxsw_sp, fi->fib_nh, NULL); | |
9b01451a PM |
3633 | } |
3634 | ||
a7ff87ac | 3635 | static struct mlxsw_sp_nexthop_group * |
0e6ea2a4 | 3636 | mlxsw_sp_nexthop4_group_create(struct mlxsw_sp *mlxsw_sp, struct fib_info *fi) |
a7ff87ac JP |
3637 | { |
3638 | struct mlxsw_sp_nexthop_group *nh_grp; | |
3639 | struct mlxsw_sp_nexthop *nh; | |
3640 | struct fib_nh *fib_nh; | |
3641 | size_t alloc_size; | |
3642 | int i; | |
3643 | int err; | |
3644 | ||
3645 | alloc_size = sizeof(*nh_grp) + | |
3646 | fi->fib_nhs * sizeof(struct mlxsw_sp_nexthop); | |
3647 | nh_grp = kzalloc(alloc_size, GFP_KERNEL); | |
3648 | if (!nh_grp) | |
3649 | return ERR_PTR(-ENOMEM); | |
ba31d366 | 3650 | nh_grp->priv = fi; |
a7ff87ac | 3651 | INIT_LIST_HEAD(&nh_grp->fib_list); |
58adf2c4 IS |
3652 | nh_grp->neigh_tbl = &arp_tbl; |
3653 | ||
9b01451a | 3654 | nh_grp->gateway = mlxsw_sp_fi_is_gateway(mlxsw_sp, fi); |
a7ff87ac | 3655 | nh_grp->count = fi->fib_nhs; |
7387dbbc | 3656 | fib_info_hold(fi); |
a7ff87ac JP |
3657 | for (i = 0; i < nh_grp->count; i++) { |
3658 | nh = &nh_grp->nexthops[i]; | |
3659 | fib_nh = &fi->fib_nh[i]; | |
0e6ea2a4 | 3660 | err = mlxsw_sp_nexthop4_init(mlxsw_sp, nh_grp, nh, fib_nh); |
a7ff87ac | 3661 | if (err) |
0e6ea2a4 | 3662 | goto err_nexthop4_init; |
a7ff87ac | 3663 | } |
e9ad5e7d IS |
3664 | err = mlxsw_sp_nexthop_group_insert(mlxsw_sp, nh_grp); |
3665 | if (err) | |
3666 | goto err_nexthop_group_insert; | |
a7ff87ac JP |
3667 | mlxsw_sp_nexthop_group_refresh(mlxsw_sp, nh_grp); |
3668 | return nh_grp; | |
3669 | ||
e9ad5e7d | 3670 | err_nexthop_group_insert: |
0e6ea2a4 | 3671 | err_nexthop4_init: |
df6dd79b IS |
3672 | for (i--; i >= 0; i--) { |
3673 | nh = &nh_grp->nexthops[i]; | |
0e6ea2a4 | 3674 | mlxsw_sp_nexthop4_fini(mlxsw_sp, nh); |
df6dd79b | 3675 | } |
ba31d366 | 3676 | fib_info_put(fi); |
a7ff87ac JP |
3677 | kfree(nh_grp); |
3678 | return ERR_PTR(err); | |
3679 | } | |
3680 | ||
3681 | static void | |
0e6ea2a4 IS |
3682 | mlxsw_sp_nexthop4_group_destroy(struct mlxsw_sp *mlxsw_sp, |
3683 | struct mlxsw_sp_nexthop_group *nh_grp) | |
a7ff87ac JP |
3684 | { |
3685 | struct mlxsw_sp_nexthop *nh; | |
3686 | int i; | |
3687 | ||
e9ad5e7d | 3688 | mlxsw_sp_nexthop_group_remove(mlxsw_sp, nh_grp); |
a7ff87ac JP |
3689 | for (i = 0; i < nh_grp->count; i++) { |
3690 | nh = &nh_grp->nexthops[i]; | |
0e6ea2a4 | 3691 | mlxsw_sp_nexthop4_fini(mlxsw_sp, nh); |
a7ff87ac | 3692 | } |
58312125 IS |
3693 | mlxsw_sp_nexthop_group_refresh(mlxsw_sp, nh_grp); |
3694 | WARN_ON_ONCE(nh_grp->adj_index_valid); | |
ba31d366 | 3695 | fib_info_put(mlxsw_sp_nexthop4_group_fi(nh_grp)); |
a7ff87ac JP |
3696 | kfree(nh_grp); |
3697 | } | |
3698 | ||
0e6ea2a4 IS |
3699 | static int mlxsw_sp_nexthop4_group_get(struct mlxsw_sp *mlxsw_sp, |
3700 | struct mlxsw_sp_fib_entry *fib_entry, | |
3701 | struct fib_info *fi) | |
a7ff87ac JP |
3702 | { |
3703 | struct mlxsw_sp_nexthop_group *nh_grp; | |
3704 | ||
ba31d366 | 3705 | nh_grp = mlxsw_sp_nexthop4_group_lookup(mlxsw_sp, fi); |
a7ff87ac | 3706 | if (!nh_grp) { |
0e6ea2a4 | 3707 | nh_grp = mlxsw_sp_nexthop4_group_create(mlxsw_sp, fi); |
a7ff87ac JP |
3708 | if (IS_ERR(nh_grp)) |
3709 | return PTR_ERR(nh_grp); | |
3710 | } | |
3711 | list_add_tail(&fib_entry->nexthop_group_node, &nh_grp->fib_list); | |
3712 | fib_entry->nh_group = nh_grp; | |
3713 | return 0; | |
3714 | } | |
3715 | ||
0e6ea2a4 IS |
3716 | static void mlxsw_sp_nexthop4_group_put(struct mlxsw_sp *mlxsw_sp, |
3717 | struct mlxsw_sp_fib_entry *fib_entry) | |
a7ff87ac JP |
3718 | { |
3719 | struct mlxsw_sp_nexthop_group *nh_grp = fib_entry->nh_group; | |
3720 | ||
3721 | list_del(&fib_entry->nexthop_group_node); | |
3722 | if (!list_empty(&nh_grp->fib_list)) | |
3723 | return; | |
0e6ea2a4 | 3724 | mlxsw_sp_nexthop4_group_destroy(mlxsw_sp, nh_grp); |
a7ff87ac JP |
3725 | } |
3726 | ||
4f1c7f1f IS |
3727 | static bool |
3728 | mlxsw_sp_fib4_entry_should_offload(const struct mlxsw_sp_fib_entry *fib_entry) | |
3729 | { | |
3730 | struct mlxsw_sp_fib4_entry *fib4_entry; | |
3731 | ||
3732 | fib4_entry = container_of(fib_entry, struct mlxsw_sp_fib4_entry, | |
3733 | common); | |
3734 | return !fib4_entry->tos; | |
3735 | } | |
3736 | ||
013b20f9 IS |
3737 | static bool |
3738 | mlxsw_sp_fib_entry_should_offload(const struct mlxsw_sp_fib_entry *fib_entry) | |
3739 | { | |
3740 | struct mlxsw_sp_nexthop_group *nh_group = fib_entry->nh_group; | |
3741 | ||
4f1c7f1f IS |
3742 | switch (fib_entry->fib_node->fib->proto) { |
3743 | case MLXSW_SP_L3_PROTO_IPV4: | |
3744 | if (!mlxsw_sp_fib4_entry_should_offload(fib_entry)) | |
3745 | return false; | |
3746 | break; | |
3747 | case MLXSW_SP_L3_PROTO_IPV6: | |
3748 | break; | |
3749 | } | |
9aecce1c | 3750 | |
013b20f9 IS |
3751 | switch (fib_entry->type) { |
3752 | case MLXSW_SP_FIB_ENTRY_TYPE_REMOTE: | |
3753 | return !!nh_group->adj_index_valid; | |
3754 | case MLXSW_SP_FIB_ENTRY_TYPE_LOCAL: | |
70ad3506 | 3755 | return !!nh_group->nh_rif; |
4607f6d2 PM |
3756 | case MLXSW_SP_FIB_ENTRY_TYPE_IPIP_DECAP: |
3757 | return true; | |
013b20f9 IS |
3758 | default: |
3759 | return false; | |
3760 | } | |
3761 | } | |
3762 | ||
428b851f IS |
3763 | static struct mlxsw_sp_nexthop * |
3764 | mlxsw_sp_rt6_nexthop(struct mlxsw_sp_nexthop_group *nh_grp, | |
3765 | const struct mlxsw_sp_rt6 *mlxsw_sp_rt6) | |
3766 | { | |
3767 | int i; | |
3768 | ||
3769 | for (i = 0; i < nh_grp->count; i++) { | |
3770 | struct mlxsw_sp_nexthop *nh = &nh_grp->nexthops[i]; | |
3771 | struct rt6_info *rt = mlxsw_sp_rt6->rt; | |
3772 | ||
3773 | if (nh->rif && nh->rif->dev == rt->dst.dev && | |
3774 | ipv6_addr_equal((const struct in6_addr *) &nh->gw_addr, | |
3775 | &rt->rt6i_gateway)) | |
3776 | return nh; | |
3777 | continue; | |
3778 | } | |
3779 | ||
3780 | return NULL; | |
3781 | } | |
3782 | ||
3984d1a8 IS |
3783 | static void |
3784 | mlxsw_sp_fib4_entry_offload_set(struct mlxsw_sp_fib_entry *fib_entry) | |
3785 | { | |
3786 | struct mlxsw_sp_nexthop_group *nh_grp = fib_entry->nh_group; | |
3787 | int i; | |
3788 | ||
4607f6d2 PM |
3789 | if (fib_entry->type == MLXSW_SP_FIB_ENTRY_TYPE_LOCAL || |
3790 | fib_entry->type == MLXSW_SP_FIB_ENTRY_TYPE_IPIP_DECAP) { | |
3984d1a8 IS |
3791 | nh_grp->nexthops->key.fib_nh->nh_flags |= RTNH_F_OFFLOAD; |
3792 | return; | |
3793 | } | |
3794 | ||
3795 | for (i = 0; i < nh_grp->count; i++) { | |
3796 | struct mlxsw_sp_nexthop *nh = &nh_grp->nexthops[i]; | |
3797 | ||
3798 | if (nh->offloaded) | |
3799 | nh->key.fib_nh->nh_flags |= RTNH_F_OFFLOAD; | |
3800 | else | |
3801 | nh->key.fib_nh->nh_flags &= ~RTNH_F_OFFLOAD; | |
3802 | } | |
3803 | } | |
3804 | ||
3805 | static void | |
3806 | mlxsw_sp_fib4_entry_offload_unset(struct mlxsw_sp_fib_entry *fib_entry) | |
3807 | { | |
3808 | struct mlxsw_sp_nexthop_group *nh_grp = fib_entry->nh_group; | |
3809 | int i; | |
3810 | ||
d1c95af3 IS |
3811 | if (!list_is_singular(&nh_grp->fib_list)) |
3812 | return; | |
3813 | ||
3984d1a8 IS |
3814 | for (i = 0; i < nh_grp->count; i++) { |
3815 | struct mlxsw_sp_nexthop *nh = &nh_grp->nexthops[i]; | |
3816 | ||
3817 | nh->key.fib_nh->nh_flags &= ~RTNH_F_OFFLOAD; | |
3818 | } | |
3819 | } | |
3820 | ||
428b851f IS |
3821 | static void |
3822 | mlxsw_sp_fib6_entry_offload_set(struct mlxsw_sp_fib_entry *fib_entry) | |
3823 | { | |
3824 | struct mlxsw_sp_fib6_entry *fib6_entry; | |
3825 | struct mlxsw_sp_rt6 *mlxsw_sp_rt6; | |
3826 | ||
3827 | fib6_entry = container_of(fib_entry, struct mlxsw_sp_fib6_entry, | |
3828 | common); | |
3829 | ||
3830 | if (fib_entry->type == MLXSW_SP_FIB_ENTRY_TYPE_LOCAL) { | |
3831 | list_first_entry(&fib6_entry->rt6_list, struct mlxsw_sp_rt6, | |
fe400799 | 3832 | list)->rt->rt6i_nh_flags |= RTNH_F_OFFLOAD; |
428b851f IS |
3833 | return; |
3834 | } | |
3835 | ||
3836 | list_for_each_entry(mlxsw_sp_rt6, &fib6_entry->rt6_list, list) { | |
3837 | struct mlxsw_sp_nexthop_group *nh_grp = fib_entry->nh_group; | |
3838 | struct mlxsw_sp_nexthop *nh; | |
3839 | ||
3840 | nh = mlxsw_sp_rt6_nexthop(nh_grp, mlxsw_sp_rt6); | |
3841 | if (nh && nh->offloaded) | |
fe400799 | 3842 | mlxsw_sp_rt6->rt->rt6i_nh_flags |= RTNH_F_OFFLOAD; |
428b851f | 3843 | else |
fe400799 | 3844 | mlxsw_sp_rt6->rt->rt6i_nh_flags &= ~RTNH_F_OFFLOAD; |
428b851f IS |
3845 | } |
3846 | } | |
3847 | ||
3848 | static void | |
3849 | mlxsw_sp_fib6_entry_offload_unset(struct mlxsw_sp_fib_entry *fib_entry) | |
3850 | { | |
3851 | struct mlxsw_sp_fib6_entry *fib6_entry; | |
3852 | struct mlxsw_sp_rt6 *mlxsw_sp_rt6; | |
3853 | ||
3854 | fib6_entry = container_of(fib_entry, struct mlxsw_sp_fib6_entry, | |
3855 | common); | |
3856 | list_for_each_entry(mlxsw_sp_rt6, &fib6_entry->rt6_list, list) { | |
3857 | struct rt6_info *rt = mlxsw_sp_rt6->rt; | |
3858 | ||
fe400799 | 3859 | rt->rt6i_nh_flags &= ~RTNH_F_OFFLOAD; |
428b851f IS |
3860 | } |
3861 | } | |
3862 | ||
013b20f9 IS |
3863 | static void mlxsw_sp_fib_entry_offload_set(struct mlxsw_sp_fib_entry *fib_entry) |
3864 | { | |
76610ebb | 3865 | switch (fib_entry->fib_node->fib->proto) { |
013b20f9 | 3866 | case MLXSW_SP_L3_PROTO_IPV4: |
3984d1a8 | 3867 | mlxsw_sp_fib4_entry_offload_set(fib_entry); |
013b20f9 IS |
3868 | break; |
3869 | case MLXSW_SP_L3_PROTO_IPV6: | |
428b851f IS |
3870 | mlxsw_sp_fib6_entry_offload_set(fib_entry); |
3871 | break; | |
013b20f9 IS |
3872 | } |
3873 | } | |
3874 | ||
3875 | static void | |
3876 | mlxsw_sp_fib_entry_offload_unset(struct mlxsw_sp_fib_entry *fib_entry) | |
3877 | { | |
76610ebb | 3878 | switch (fib_entry->fib_node->fib->proto) { |
013b20f9 | 3879 | case MLXSW_SP_L3_PROTO_IPV4: |
3984d1a8 | 3880 | mlxsw_sp_fib4_entry_offload_unset(fib_entry); |
013b20f9 IS |
3881 | break; |
3882 | case MLXSW_SP_L3_PROTO_IPV6: | |
428b851f IS |
3883 | mlxsw_sp_fib6_entry_offload_unset(fib_entry); |
3884 | break; | |
013b20f9 | 3885 | } |
013b20f9 IS |
3886 | } |
3887 | ||
3888 | static void | |
3889 | mlxsw_sp_fib_entry_offload_refresh(struct mlxsw_sp_fib_entry *fib_entry, | |
3890 | enum mlxsw_reg_ralue_op op, int err) | |
3891 | { | |
3892 | switch (op) { | |
3893 | case MLXSW_REG_RALUE_OP_WRITE_DELETE: | |
013b20f9 IS |
3894 | return mlxsw_sp_fib_entry_offload_unset(fib_entry); |
3895 | case MLXSW_REG_RALUE_OP_WRITE_WRITE: | |
3896 | if (err) | |
3897 | return; | |
1353ee70 | 3898 | if (mlxsw_sp_fib_entry_should_offload(fib_entry)) |
013b20f9 | 3899 | mlxsw_sp_fib_entry_offload_set(fib_entry); |
85f44a15 | 3900 | else |
013b20f9 IS |
3901 | mlxsw_sp_fib_entry_offload_unset(fib_entry); |
3902 | return; | |
3903 | default: | |
3904 | return; | |
3905 | } | |
3906 | } | |
3907 | ||
9dbf4d76 IS |
3908 | static void |
3909 | mlxsw_sp_fib_entry_ralue_pack(char *ralue_pl, | |
3910 | const struct mlxsw_sp_fib_entry *fib_entry, | |
3911 | enum mlxsw_reg_ralue_op op) | |
a7ff87ac | 3912 | { |
76610ebb | 3913 | struct mlxsw_sp_fib *fib = fib_entry->fib_node->fib; |
9dbf4d76 IS |
3914 | enum mlxsw_reg_ralxx_protocol proto; |
3915 | u32 *p_dip; | |
3916 | ||
3917 | proto = (enum mlxsw_reg_ralxx_protocol) fib->proto; | |
3918 | ||
3919 | switch (fib->proto) { | |
3920 | case MLXSW_SP_L3_PROTO_IPV4: | |
3921 | p_dip = (u32 *) fib_entry->fib_node->key.addr; | |
3922 | mlxsw_reg_ralue_pack4(ralue_pl, proto, op, fib->vr->id, | |
3923 | fib_entry->fib_node->key.prefix_len, | |
3924 | *p_dip); | |
3925 | break; | |
3926 | case MLXSW_SP_L3_PROTO_IPV6: | |
3927 | mlxsw_reg_ralue_pack6(ralue_pl, proto, op, fib->vr->id, | |
3928 | fib_entry->fib_node->key.prefix_len, | |
3929 | fib_entry->fib_node->key.addr); | |
3930 | break; | |
3931 | } | |
3932 | } | |
3933 | ||
3934 | static int mlxsw_sp_fib_entry_op_remote(struct mlxsw_sp *mlxsw_sp, | |
3935 | struct mlxsw_sp_fib_entry *fib_entry, | |
3936 | enum mlxsw_reg_ralue_op op) | |
3937 | { | |
3938 | char ralue_pl[MLXSW_REG_RALUE_LEN]; | |
a7ff87ac JP |
3939 | enum mlxsw_reg_ralue_trap_action trap_action; |
3940 | u16 trap_id = 0; | |
3941 | u32 adjacency_index = 0; | |
3942 | u16 ecmp_size = 0; | |
3943 | ||
3944 | /* In case the nexthop group adjacency index is valid, use it | |
3945 | * with provided ECMP size. Otherwise, setup trap and pass | |
3946 | * traffic to kernel. | |
3947 | */ | |
4b411477 | 3948 | if (mlxsw_sp_fib_entry_should_offload(fib_entry)) { |
a7ff87ac JP |
3949 | trap_action = MLXSW_REG_RALUE_TRAP_ACTION_NOP; |
3950 | adjacency_index = fib_entry->nh_group->adj_index; | |
3951 | ecmp_size = fib_entry->nh_group->ecmp_size; | |
3952 | } else { | |
3953 | trap_action = MLXSW_REG_RALUE_TRAP_ACTION_TRAP; | |
3954 | trap_id = MLXSW_TRAP_ID_RTR_INGRESS0; | |
3955 | } | |
3956 | ||
9dbf4d76 | 3957 | mlxsw_sp_fib_entry_ralue_pack(ralue_pl, fib_entry, op); |
a7ff87ac JP |
3958 | mlxsw_reg_ralue_act_remote_pack(ralue_pl, trap_action, trap_id, |
3959 | adjacency_index, ecmp_size); | |
3960 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralue), ralue_pl); | |
3961 | } | |
3962 | ||
9dbf4d76 IS |
3963 | static int mlxsw_sp_fib_entry_op_local(struct mlxsw_sp *mlxsw_sp, |
3964 | struct mlxsw_sp_fib_entry *fib_entry, | |
3965 | enum mlxsw_reg_ralue_op op) | |
61c503f9 | 3966 | { |
bf95233e | 3967 | struct mlxsw_sp_rif *rif = fib_entry->nh_group->nh_rif; |
70ad3506 | 3968 | enum mlxsw_reg_ralue_trap_action trap_action; |
61c503f9 | 3969 | char ralue_pl[MLXSW_REG_RALUE_LEN]; |
70ad3506 | 3970 | u16 trap_id = 0; |
bf95233e | 3971 | u16 rif_index = 0; |
70ad3506 IS |
3972 | |
3973 | if (mlxsw_sp_fib_entry_should_offload(fib_entry)) { | |
3974 | trap_action = MLXSW_REG_RALUE_TRAP_ACTION_NOP; | |
bf95233e | 3975 | rif_index = rif->rif_index; |
70ad3506 IS |
3976 | } else { |
3977 | trap_action = MLXSW_REG_RALUE_TRAP_ACTION_TRAP; | |
3978 | trap_id = MLXSW_TRAP_ID_RTR_INGRESS0; | |
3979 | } | |
61c503f9 | 3980 | |
9dbf4d76 | 3981 | mlxsw_sp_fib_entry_ralue_pack(ralue_pl, fib_entry, op); |
bf95233e AS |
3982 | mlxsw_reg_ralue_act_local_pack(ralue_pl, trap_action, trap_id, |
3983 | rif_index); | |
61c503f9 JP |
3984 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralue), ralue_pl); |
3985 | } | |
3986 | ||
9dbf4d76 IS |
3987 | static int mlxsw_sp_fib_entry_op_trap(struct mlxsw_sp *mlxsw_sp, |
3988 | struct mlxsw_sp_fib_entry *fib_entry, | |
3989 | enum mlxsw_reg_ralue_op op) | |
61c503f9 JP |
3990 | { |
3991 | char ralue_pl[MLXSW_REG_RALUE_LEN]; | |
61c503f9 | 3992 | |
9dbf4d76 | 3993 | mlxsw_sp_fib_entry_ralue_pack(ralue_pl, fib_entry, op); |
61c503f9 JP |
3994 | mlxsw_reg_ralue_act_ip2me_pack(ralue_pl); |
3995 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralue), ralue_pl); | |
3996 | } | |
3997 | ||
4607f6d2 PM |
3998 | static int |
3999 | mlxsw_sp_fib_entry_op_ipip_decap(struct mlxsw_sp *mlxsw_sp, | |
4000 | struct mlxsw_sp_fib_entry *fib_entry, | |
4001 | enum mlxsw_reg_ralue_op op) | |
4002 | { | |
4003 | struct mlxsw_sp_ipip_entry *ipip_entry = fib_entry->decap.ipip_entry; | |
4004 | const struct mlxsw_sp_ipip_ops *ipip_ops; | |
4005 | ||
4006 | if (WARN_ON(!ipip_entry)) | |
4007 | return -EINVAL; | |
4008 | ||
4009 | ipip_ops = mlxsw_sp->router->ipip_ops_arr[ipip_entry->ipipt]; | |
4010 | return ipip_ops->fib_entry_op(mlxsw_sp, ipip_entry, op, | |
4011 | fib_entry->decap.tunnel_index); | |
4012 | } | |
4013 | ||
9dbf4d76 IS |
4014 | static int __mlxsw_sp_fib_entry_op(struct mlxsw_sp *mlxsw_sp, |
4015 | struct mlxsw_sp_fib_entry *fib_entry, | |
4016 | enum mlxsw_reg_ralue_op op) | |
61c503f9 JP |
4017 | { |
4018 | switch (fib_entry->type) { | |
4019 | case MLXSW_SP_FIB_ENTRY_TYPE_REMOTE: | |
9dbf4d76 | 4020 | return mlxsw_sp_fib_entry_op_remote(mlxsw_sp, fib_entry, op); |
61c503f9 | 4021 | case MLXSW_SP_FIB_ENTRY_TYPE_LOCAL: |
9dbf4d76 | 4022 | return mlxsw_sp_fib_entry_op_local(mlxsw_sp, fib_entry, op); |
61c503f9 | 4023 | case MLXSW_SP_FIB_ENTRY_TYPE_TRAP: |
9dbf4d76 | 4024 | return mlxsw_sp_fib_entry_op_trap(mlxsw_sp, fib_entry, op); |
4607f6d2 PM |
4025 | case MLXSW_SP_FIB_ENTRY_TYPE_IPIP_DECAP: |
4026 | return mlxsw_sp_fib_entry_op_ipip_decap(mlxsw_sp, | |
4027 | fib_entry, op); | |
61c503f9 JP |
4028 | } |
4029 | return -EINVAL; | |
4030 | } | |
4031 | ||
4032 | static int mlxsw_sp_fib_entry_op(struct mlxsw_sp *mlxsw_sp, | |
4033 | struct mlxsw_sp_fib_entry *fib_entry, | |
4034 | enum mlxsw_reg_ralue_op op) | |
4035 | { | |
9dbf4d76 | 4036 | int err = __mlxsw_sp_fib_entry_op(mlxsw_sp, fib_entry, op); |
013b20f9 | 4037 | |
013b20f9 | 4038 | mlxsw_sp_fib_entry_offload_refresh(fib_entry, op, err); |
9dbf4d76 | 4039 | |
013b20f9 | 4040 | return err; |
61c503f9 JP |
4041 | } |
4042 | ||
4043 | static int mlxsw_sp_fib_entry_update(struct mlxsw_sp *mlxsw_sp, | |
4044 | struct mlxsw_sp_fib_entry *fib_entry) | |
4045 | { | |
7146da31 JP |
4046 | return mlxsw_sp_fib_entry_op(mlxsw_sp, fib_entry, |
4047 | MLXSW_REG_RALUE_OP_WRITE_WRITE); | |
61c503f9 JP |
4048 | } |
4049 | ||
4050 | static int mlxsw_sp_fib_entry_del(struct mlxsw_sp *mlxsw_sp, | |
4051 | struct mlxsw_sp_fib_entry *fib_entry) | |
4052 | { | |
4053 | return mlxsw_sp_fib_entry_op(mlxsw_sp, fib_entry, | |
4054 | MLXSW_REG_RALUE_OP_WRITE_DELETE); | |
4055 | } | |
4056 | ||
61c503f9 | 4057 | static int |
013b20f9 IS |
4058 | mlxsw_sp_fib4_entry_type_set(struct mlxsw_sp *mlxsw_sp, |
4059 | const struct fib_entry_notifier_info *fen_info, | |
4060 | struct mlxsw_sp_fib_entry *fib_entry) | |
61c503f9 | 4061 | { |
4607f6d2 PM |
4062 | union mlxsw_sp_l3addr dip = { .addr4 = htonl(fen_info->dst) }; |
4063 | struct net_device *dev = fen_info->fi->fib_dev; | |
4064 | struct mlxsw_sp_ipip_entry *ipip_entry; | |
b45f64d1 | 4065 | struct fib_info *fi = fen_info->fi; |
61c503f9 | 4066 | |
97989ee0 | 4067 | switch (fen_info->type) { |
97989ee0 | 4068 | case RTN_LOCAL: |
4607f6d2 PM |
4069 | ipip_entry = mlxsw_sp_ipip_entry_find_by_decap(mlxsw_sp, dev, |
4070 | MLXSW_SP_L3_PROTO_IPV4, dip); | |
57c77ce4 | 4071 | if (ipip_entry && ipip_entry->ol_dev->flags & IFF_UP) { |
4607f6d2 PM |
4072 | fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_IPIP_DECAP; |
4073 | return mlxsw_sp_fib_entry_decap_init(mlxsw_sp, | |
4074 | fib_entry, | |
4075 | ipip_entry); | |
4076 | } | |
4077 | /* fall through */ | |
4078 | case RTN_BROADCAST: | |
61c503f9 JP |
4079 | fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_TRAP; |
4080 | return 0; | |
97989ee0 IS |
4081 | case RTN_UNREACHABLE: /* fall through */ |
4082 | case RTN_BLACKHOLE: /* fall through */ | |
4083 | case RTN_PROHIBIT: | |
4084 | /* Packets hitting these routes need to be trapped, but | |
4085 | * can do so with a lower priority than packets directed | |
4086 | * at the host, so use action type local instead of trap. | |
4087 | */ | |
61c503f9 | 4088 | fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_LOCAL; |
97989ee0 IS |
4089 | return 0; |
4090 | case RTN_UNICAST: | |
9b01451a | 4091 | if (mlxsw_sp_fi_is_gateway(mlxsw_sp, fi)) |
97989ee0 | 4092 | fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_REMOTE; |
9b01451a PM |
4093 | else |
4094 | fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_LOCAL; | |
97989ee0 IS |
4095 | return 0; |
4096 | default: | |
4097 | return -EINVAL; | |
4098 | } | |
a7ff87ac JP |
4099 | } |
4100 | ||
4f1c7f1f | 4101 | static struct mlxsw_sp_fib4_entry * |
9aecce1c IS |
4102 | mlxsw_sp_fib4_entry_create(struct mlxsw_sp *mlxsw_sp, |
4103 | struct mlxsw_sp_fib_node *fib_node, | |
4104 | const struct fib_entry_notifier_info *fen_info) | |
61c503f9 | 4105 | { |
4f1c7f1f | 4106 | struct mlxsw_sp_fib4_entry *fib4_entry; |
61c503f9 | 4107 | struct mlxsw_sp_fib_entry *fib_entry; |
61c503f9 JP |
4108 | int err; |
4109 | ||
4f1c7f1f IS |
4110 | fib4_entry = kzalloc(sizeof(*fib4_entry), GFP_KERNEL); |
4111 | if (!fib4_entry) | |
4112 | return ERR_PTR(-ENOMEM); | |
4113 | fib_entry = &fib4_entry->common; | |
61c503f9 | 4114 | |
013b20f9 | 4115 | err = mlxsw_sp_fib4_entry_type_set(mlxsw_sp, fen_info, fib_entry); |
61c503f9 | 4116 | if (err) |
013b20f9 | 4117 | goto err_fib4_entry_type_set; |
61c503f9 | 4118 | |
0e6ea2a4 | 4119 | err = mlxsw_sp_nexthop4_group_get(mlxsw_sp, fib_entry, fen_info->fi); |
b8399a1e | 4120 | if (err) |
0e6ea2a4 | 4121 | goto err_nexthop4_group_get; |
b8399a1e | 4122 | |
4f1c7f1f IS |
4123 | fib4_entry->prio = fen_info->fi->fib_priority; |
4124 | fib4_entry->tb_id = fen_info->tb_id; | |
4125 | fib4_entry->type = fen_info->type; | |
4126 | fib4_entry->tos = fen_info->tos; | |
9aecce1c IS |
4127 | |
4128 | fib_entry->fib_node = fib_node; | |
4129 | ||
4f1c7f1f | 4130 | return fib4_entry; |
5b004412 | 4131 | |
0e6ea2a4 | 4132 | err_nexthop4_group_get: |
013b20f9 | 4133 | err_fib4_entry_type_set: |
4f1c7f1f | 4134 | kfree(fib4_entry); |
5b004412 JP |
4135 | return ERR_PTR(err); |
4136 | } | |
4137 | ||
9aecce1c | 4138 | static void mlxsw_sp_fib4_entry_destroy(struct mlxsw_sp *mlxsw_sp, |
4f1c7f1f | 4139 | struct mlxsw_sp_fib4_entry *fib4_entry) |
9aecce1c | 4140 | { |
0e6ea2a4 | 4141 | mlxsw_sp_nexthop4_group_put(mlxsw_sp, &fib4_entry->common); |
4f1c7f1f | 4142 | kfree(fib4_entry); |
9aecce1c IS |
4143 | } |
4144 | ||
4f1c7f1f | 4145 | static struct mlxsw_sp_fib4_entry * |
9aecce1c IS |
4146 | mlxsw_sp_fib4_entry_lookup(struct mlxsw_sp *mlxsw_sp, |
4147 | const struct fib_entry_notifier_info *fen_info) | |
5b004412 | 4148 | { |
4f1c7f1f | 4149 | struct mlxsw_sp_fib4_entry *fib4_entry; |
9aecce1c | 4150 | struct mlxsw_sp_fib_node *fib_node; |
160e22aa IS |
4151 | struct mlxsw_sp_fib *fib; |
4152 | struct mlxsw_sp_vr *vr; | |
4153 | ||
4154 | vr = mlxsw_sp_vr_find(mlxsw_sp, fen_info->tb_id); | |
4155 | if (!vr) | |
4156 | return NULL; | |
4157 | fib = mlxsw_sp_vr_fib(vr, MLXSW_SP_L3_PROTO_IPV4); | |
5b004412 | 4158 | |
160e22aa IS |
4159 | fib_node = mlxsw_sp_fib_node_lookup(fib, &fen_info->dst, |
4160 | sizeof(fen_info->dst), | |
4161 | fen_info->dst_len); | |
4162 | if (!fib_node) | |
9aecce1c IS |
4163 | return NULL; |
4164 | ||
4f1c7f1f IS |
4165 | list_for_each_entry(fib4_entry, &fib_node->entry_list, common.list) { |
4166 | if (fib4_entry->tb_id == fen_info->tb_id && | |
4167 | fib4_entry->tos == fen_info->tos && | |
4168 | fib4_entry->type == fen_info->type && | |
ba31d366 AS |
4169 | mlxsw_sp_nexthop4_group_fi(fib4_entry->common.nh_group) == |
4170 | fen_info->fi) { | |
4f1c7f1f | 4171 | return fib4_entry; |
9aecce1c IS |
4172 | } |
4173 | } | |
4174 | ||
4175 | return NULL; | |
4176 | } | |
4177 | ||
4178 | static const struct rhashtable_params mlxsw_sp_fib_ht_params = { | |
4179 | .key_offset = offsetof(struct mlxsw_sp_fib_node, key), | |
4180 | .head_offset = offsetof(struct mlxsw_sp_fib_node, ht_node), | |
4181 | .key_len = sizeof(struct mlxsw_sp_fib_key), | |
4182 | .automatic_shrinking = true, | |
4183 | }; | |
4184 | ||
4185 | static int mlxsw_sp_fib_node_insert(struct mlxsw_sp_fib *fib, | |
4186 | struct mlxsw_sp_fib_node *fib_node) | |
4187 | { | |
4188 | return rhashtable_insert_fast(&fib->ht, &fib_node->ht_node, | |
4189 | mlxsw_sp_fib_ht_params); | |
4190 | } | |
4191 | ||
4192 | static void mlxsw_sp_fib_node_remove(struct mlxsw_sp_fib *fib, | |
4193 | struct mlxsw_sp_fib_node *fib_node) | |
4194 | { | |
4195 | rhashtable_remove_fast(&fib->ht, &fib_node->ht_node, | |
4196 | mlxsw_sp_fib_ht_params); | |
4197 | } | |
4198 | ||
4199 | static struct mlxsw_sp_fib_node * | |
4200 | mlxsw_sp_fib_node_lookup(struct mlxsw_sp_fib *fib, const void *addr, | |
4201 | size_t addr_len, unsigned char prefix_len) | |
4202 | { | |
4203 | struct mlxsw_sp_fib_key key; | |
4204 | ||
4205 | memset(&key, 0, sizeof(key)); | |
4206 | memcpy(key.addr, addr, addr_len); | |
4207 | key.prefix_len = prefix_len; | |
4208 | return rhashtable_lookup_fast(&fib->ht, &key, mlxsw_sp_fib_ht_params); | |
4209 | } | |
4210 | ||
4211 | static struct mlxsw_sp_fib_node * | |
76610ebb | 4212 | mlxsw_sp_fib_node_create(struct mlxsw_sp_fib *fib, const void *addr, |
9aecce1c IS |
4213 | size_t addr_len, unsigned char prefix_len) |
4214 | { | |
4215 | struct mlxsw_sp_fib_node *fib_node; | |
4216 | ||
4217 | fib_node = kzalloc(sizeof(*fib_node), GFP_KERNEL); | |
4218 | if (!fib_node) | |
5b004412 JP |
4219 | return NULL; |
4220 | ||
9aecce1c | 4221 | INIT_LIST_HEAD(&fib_node->entry_list); |
76610ebb | 4222 | list_add(&fib_node->list, &fib->node_list); |
9aecce1c IS |
4223 | memcpy(fib_node->key.addr, addr, addr_len); |
4224 | fib_node->key.prefix_len = prefix_len; | |
9aecce1c IS |
4225 | |
4226 | return fib_node; | |
4227 | } | |
4228 | ||
4229 | static void mlxsw_sp_fib_node_destroy(struct mlxsw_sp_fib_node *fib_node) | |
4230 | { | |
9aecce1c IS |
4231 | list_del(&fib_node->list); |
4232 | WARN_ON(!list_empty(&fib_node->entry_list)); | |
4233 | kfree(fib_node); | |
4234 | } | |
4235 | ||
4236 | static bool | |
4237 | mlxsw_sp_fib_node_entry_is_first(const struct mlxsw_sp_fib_node *fib_node, | |
4238 | const struct mlxsw_sp_fib_entry *fib_entry) | |
4239 | { | |
4240 | return list_first_entry(&fib_node->entry_list, | |
4241 | struct mlxsw_sp_fib_entry, list) == fib_entry; | |
4242 | } | |
4243 | ||
fc922bb0 | 4244 | static int mlxsw_sp_fib_lpm_tree_link(struct mlxsw_sp *mlxsw_sp, |
fc922bb0 IS |
4245 | struct mlxsw_sp_fib_node *fib_node) |
4246 | { | |
2b52ce02 | 4247 | struct mlxsw_sp_prefix_usage req_prefix_usage; |
3aad95df | 4248 | struct mlxsw_sp_fib *fib = fib_node->fib; |
fc922bb0 IS |
4249 | struct mlxsw_sp_lpm_tree *lpm_tree; |
4250 | int err; | |
4251 | ||
2b52ce02 IS |
4252 | lpm_tree = mlxsw_sp->router->lpm.proto_trees[fib->proto]; |
4253 | if (lpm_tree->prefix_ref_count[fib_node->key.prefix_len] != 0) | |
4254 | goto out; | |
fc922bb0 | 4255 | |
2b52ce02 IS |
4256 | mlxsw_sp_prefix_usage_cpy(&req_prefix_usage, &lpm_tree->prefix_usage); |
4257 | mlxsw_sp_prefix_usage_set(&req_prefix_usage, fib_node->key.prefix_len); | |
fc922bb0 IS |
4258 | lpm_tree = mlxsw_sp_lpm_tree_get(mlxsw_sp, &req_prefix_usage, |
4259 | fib->proto); | |
4260 | if (IS_ERR(lpm_tree)) | |
4261 | return PTR_ERR(lpm_tree); | |
4262 | ||
fc922bb0 IS |
4263 | err = mlxsw_sp_vrs_lpm_tree_replace(mlxsw_sp, fib, lpm_tree); |
4264 | if (err) | |
2b52ce02 | 4265 | goto err_lpm_tree_replace; |
fc922bb0 | 4266 | |
2b52ce02 IS |
4267 | out: |
4268 | lpm_tree->prefix_ref_count[fib_node->key.prefix_len]++; | |
fc922bb0 | 4269 | return 0; |
2b52ce02 IS |
4270 | |
4271 | err_lpm_tree_replace: | |
4272 | mlxsw_sp_lpm_tree_put(mlxsw_sp, lpm_tree); | |
4273 | return err; | |
fc922bb0 IS |
4274 | } |
4275 | ||
4276 | static void mlxsw_sp_fib_lpm_tree_unlink(struct mlxsw_sp *mlxsw_sp, | |
3aad95df | 4277 | struct mlxsw_sp_fib_node *fib_node) |
fc922bb0 | 4278 | { |
2b52ce02 IS |
4279 | struct mlxsw_sp_lpm_tree *lpm_tree = fib_node->fib->lpm_tree; |
4280 | struct mlxsw_sp_prefix_usage req_prefix_usage; | |
3aad95df | 4281 | struct mlxsw_sp_fib *fib = fib_node->fib; |
2b52ce02 | 4282 | int err; |
3aad95df | 4283 | |
2b52ce02 | 4284 | if (--lpm_tree->prefix_ref_count[fib_node->key.prefix_len] != 0) |
fc922bb0 | 4285 | return; |
2b52ce02 IS |
4286 | /* Try to construct a new LPM tree from the current prefix usage |
4287 | * minus the unused one. If we fail, continue using the old one. | |
4fd00312 | 4288 | */ |
2b52ce02 IS |
4289 | mlxsw_sp_prefix_usage_cpy(&req_prefix_usage, &lpm_tree->prefix_usage); |
4290 | mlxsw_sp_prefix_usage_clear(&req_prefix_usage, | |
4291 | fib_node->key.prefix_len); | |
4292 | lpm_tree = mlxsw_sp_lpm_tree_get(mlxsw_sp, &req_prefix_usage, | |
4293 | fib->proto); | |
4294 | if (IS_ERR(lpm_tree)) | |
4295 | return; | |
9aecce1c | 4296 | |
2b52ce02 IS |
4297 | err = mlxsw_sp_vrs_lpm_tree_replace(mlxsw_sp, fib, lpm_tree); |
4298 | if (err) | |
4299 | goto err_lpm_tree_replace; | |
9aecce1c | 4300 | |
2b52ce02 | 4301 | return; |
9aecce1c | 4302 | |
2b52ce02 IS |
4303 | err_lpm_tree_replace: |
4304 | mlxsw_sp_lpm_tree_put(mlxsw_sp, lpm_tree); | |
5b004412 JP |
4305 | } |
4306 | ||
76610ebb IS |
4307 | static int mlxsw_sp_fib_node_init(struct mlxsw_sp *mlxsw_sp, |
4308 | struct mlxsw_sp_fib_node *fib_node, | |
4309 | struct mlxsw_sp_fib *fib) | |
4310 | { | |
76610ebb IS |
4311 | int err; |
4312 | ||
4313 | err = mlxsw_sp_fib_node_insert(fib, fib_node); | |
4314 | if (err) | |
4315 | return err; | |
4316 | fib_node->fib = fib; | |
4317 | ||
3aad95df | 4318 | err = mlxsw_sp_fib_lpm_tree_link(mlxsw_sp, fib_node); |
fc922bb0 IS |
4319 | if (err) |
4320 | goto err_fib_lpm_tree_link; | |
76610ebb | 4321 | |
76610ebb IS |
4322 | return 0; |
4323 | ||
fc922bb0 | 4324 | err_fib_lpm_tree_link: |
76610ebb IS |
4325 | fib_node->fib = NULL; |
4326 | mlxsw_sp_fib_node_remove(fib, fib_node); | |
4327 | return err; | |
4328 | } | |
4329 | ||
4330 | static void mlxsw_sp_fib_node_fini(struct mlxsw_sp *mlxsw_sp, | |
4331 | struct mlxsw_sp_fib_node *fib_node) | |
4332 | { | |
76610ebb IS |
4333 | struct mlxsw_sp_fib *fib = fib_node->fib; |
4334 | ||
3aad95df | 4335 | mlxsw_sp_fib_lpm_tree_unlink(mlxsw_sp, fib_node); |
76610ebb IS |
4336 | fib_node->fib = NULL; |
4337 | mlxsw_sp_fib_node_remove(fib, fib_node); | |
4338 | } | |
4339 | ||
9aecce1c | 4340 | static struct mlxsw_sp_fib_node * |
731ea1ca IS |
4341 | mlxsw_sp_fib_node_get(struct mlxsw_sp *mlxsw_sp, u32 tb_id, const void *addr, |
4342 | size_t addr_len, unsigned char prefix_len, | |
4343 | enum mlxsw_sp_l3proto proto) | |
5b004412 | 4344 | { |
9aecce1c | 4345 | struct mlxsw_sp_fib_node *fib_node; |
76610ebb | 4346 | struct mlxsw_sp_fib *fib; |
9aecce1c IS |
4347 | struct mlxsw_sp_vr *vr; |
4348 | int err; | |
4349 | ||
f8fa9b4e | 4350 | vr = mlxsw_sp_vr_get(mlxsw_sp, tb_id, NULL); |
9aecce1c IS |
4351 | if (IS_ERR(vr)) |
4352 | return ERR_CAST(vr); | |
731ea1ca | 4353 | fib = mlxsw_sp_vr_fib(vr, proto); |
9aecce1c | 4354 | |
731ea1ca | 4355 | fib_node = mlxsw_sp_fib_node_lookup(fib, addr, addr_len, prefix_len); |
9aecce1c IS |
4356 | if (fib_node) |
4357 | return fib_node; | |
5b004412 | 4358 | |
731ea1ca | 4359 | fib_node = mlxsw_sp_fib_node_create(fib, addr, addr_len, prefix_len); |
9aecce1c IS |
4360 | if (!fib_node) { |
4361 | err = -ENOMEM; | |
4362 | goto err_fib_node_create; | |
5b004412 | 4363 | } |
9aecce1c | 4364 | |
76610ebb IS |
4365 | err = mlxsw_sp_fib_node_init(mlxsw_sp, fib_node, fib); |
4366 | if (err) | |
4367 | goto err_fib_node_init; | |
4368 | ||
9aecce1c IS |
4369 | return fib_node; |
4370 | ||
76610ebb IS |
4371 | err_fib_node_init: |
4372 | mlxsw_sp_fib_node_destroy(fib_node); | |
9aecce1c | 4373 | err_fib_node_create: |
2b52ce02 | 4374 | mlxsw_sp_vr_put(mlxsw_sp, vr); |
9aecce1c | 4375 | return ERR_PTR(err); |
5b004412 JP |
4376 | } |
4377 | ||
731ea1ca IS |
4378 | static void mlxsw_sp_fib_node_put(struct mlxsw_sp *mlxsw_sp, |
4379 | struct mlxsw_sp_fib_node *fib_node) | |
5b004412 | 4380 | { |
76610ebb | 4381 | struct mlxsw_sp_vr *vr = fib_node->fib->vr; |
5b004412 | 4382 | |
9aecce1c IS |
4383 | if (!list_empty(&fib_node->entry_list)) |
4384 | return; | |
76610ebb | 4385 | mlxsw_sp_fib_node_fini(mlxsw_sp, fib_node); |
9aecce1c | 4386 | mlxsw_sp_fib_node_destroy(fib_node); |
2b52ce02 | 4387 | mlxsw_sp_vr_put(mlxsw_sp, vr); |
61c503f9 JP |
4388 | } |
4389 | ||
4f1c7f1f | 4390 | static struct mlxsw_sp_fib4_entry * |
9aecce1c | 4391 | mlxsw_sp_fib4_node_entry_find(const struct mlxsw_sp_fib_node *fib_node, |
4f1c7f1f | 4392 | const struct mlxsw_sp_fib4_entry *new4_entry) |
61c503f9 | 4393 | { |
4f1c7f1f | 4394 | struct mlxsw_sp_fib4_entry *fib4_entry; |
9aecce1c | 4395 | |
4f1c7f1f IS |
4396 | list_for_each_entry(fib4_entry, &fib_node->entry_list, common.list) { |
4397 | if (fib4_entry->tb_id > new4_entry->tb_id) | |
9aecce1c | 4398 | continue; |
4f1c7f1f | 4399 | if (fib4_entry->tb_id != new4_entry->tb_id) |
9aecce1c | 4400 | break; |
4f1c7f1f | 4401 | if (fib4_entry->tos > new4_entry->tos) |
9aecce1c | 4402 | continue; |
4f1c7f1f IS |
4403 | if (fib4_entry->prio >= new4_entry->prio || |
4404 | fib4_entry->tos < new4_entry->tos) | |
4405 | return fib4_entry; | |
9aecce1c IS |
4406 | } |
4407 | ||
4408 | return NULL; | |
4409 | } | |
4410 | ||
4f1c7f1f IS |
4411 | static int |
4412 | mlxsw_sp_fib4_node_list_append(struct mlxsw_sp_fib4_entry *fib4_entry, | |
4413 | struct mlxsw_sp_fib4_entry *new4_entry) | |
4283bce5 IS |
4414 | { |
4415 | struct mlxsw_sp_fib_node *fib_node; | |
4416 | ||
4f1c7f1f | 4417 | if (WARN_ON(!fib4_entry)) |
4283bce5 IS |
4418 | return -EINVAL; |
4419 | ||
4f1c7f1f IS |
4420 | fib_node = fib4_entry->common.fib_node; |
4421 | list_for_each_entry_from(fib4_entry, &fib_node->entry_list, | |
4422 | common.list) { | |
4423 | if (fib4_entry->tb_id != new4_entry->tb_id || | |
4424 | fib4_entry->tos != new4_entry->tos || | |
4425 | fib4_entry->prio != new4_entry->prio) | |
4283bce5 IS |
4426 | break; |
4427 | } | |
4428 | ||
4f1c7f1f | 4429 | list_add_tail(&new4_entry->common.list, &fib4_entry->common.list); |
4283bce5 IS |
4430 | return 0; |
4431 | } | |
4432 | ||
9aecce1c | 4433 | static int |
9efbee6f | 4434 | mlxsw_sp_fib4_node_list_insert(struct mlxsw_sp_fib4_entry *new4_entry, |
599cf8f9 | 4435 | bool replace, bool append) |
9aecce1c | 4436 | { |
9efbee6f | 4437 | struct mlxsw_sp_fib_node *fib_node = new4_entry->common.fib_node; |
4f1c7f1f | 4438 | struct mlxsw_sp_fib4_entry *fib4_entry; |
9aecce1c | 4439 | |
4f1c7f1f | 4440 | fib4_entry = mlxsw_sp_fib4_node_entry_find(fib_node, new4_entry); |
9aecce1c | 4441 | |
4283bce5 | 4442 | if (append) |
4f1c7f1f IS |
4443 | return mlxsw_sp_fib4_node_list_append(fib4_entry, new4_entry); |
4444 | if (replace && WARN_ON(!fib4_entry)) | |
599cf8f9 | 4445 | return -EINVAL; |
4283bce5 | 4446 | |
599cf8f9 IS |
4447 | /* Insert new entry before replaced one, so that we can later |
4448 | * remove the second. | |
4449 | */ | |
4f1c7f1f IS |
4450 | if (fib4_entry) { |
4451 | list_add_tail(&new4_entry->common.list, | |
4452 | &fib4_entry->common.list); | |
9aecce1c | 4453 | } else { |
4f1c7f1f | 4454 | struct mlxsw_sp_fib4_entry *last; |
9aecce1c | 4455 | |
4f1c7f1f IS |
4456 | list_for_each_entry(last, &fib_node->entry_list, common.list) { |
4457 | if (new4_entry->tb_id > last->tb_id) | |
9aecce1c | 4458 | break; |
4f1c7f1f | 4459 | fib4_entry = last; |
9aecce1c IS |
4460 | } |
4461 | ||
4f1c7f1f IS |
4462 | if (fib4_entry) |
4463 | list_add(&new4_entry->common.list, | |
4464 | &fib4_entry->common.list); | |
9aecce1c | 4465 | else |
4f1c7f1f IS |
4466 | list_add(&new4_entry->common.list, |
4467 | &fib_node->entry_list); | |
9aecce1c IS |
4468 | } |
4469 | ||
4470 | return 0; | |
4471 | } | |
4472 | ||
4473 | static void | |
4f1c7f1f | 4474 | mlxsw_sp_fib4_node_list_remove(struct mlxsw_sp_fib4_entry *fib4_entry) |
9aecce1c | 4475 | { |
4f1c7f1f | 4476 | list_del(&fib4_entry->common.list); |
9aecce1c IS |
4477 | } |
4478 | ||
80c238f9 IS |
4479 | static int mlxsw_sp_fib_node_entry_add(struct mlxsw_sp *mlxsw_sp, |
4480 | struct mlxsw_sp_fib_entry *fib_entry) | |
9aecce1c | 4481 | { |
9efbee6f IS |
4482 | struct mlxsw_sp_fib_node *fib_node = fib_entry->fib_node; |
4483 | ||
9aecce1c IS |
4484 | if (!mlxsw_sp_fib_node_entry_is_first(fib_node, fib_entry)) |
4485 | return 0; | |
4486 | ||
4487 | /* To prevent packet loss, overwrite the previously offloaded | |
4488 | * entry. | |
4489 | */ | |
4490 | if (!list_is_singular(&fib_node->entry_list)) { | |
4491 | enum mlxsw_reg_ralue_op op = MLXSW_REG_RALUE_OP_WRITE_DELETE; | |
4492 | struct mlxsw_sp_fib_entry *n = list_next_entry(fib_entry, list); | |
4493 | ||
4494 | mlxsw_sp_fib_entry_offload_refresh(n, op, 0); | |
4495 | } | |
4496 | ||
4497 | return mlxsw_sp_fib_entry_update(mlxsw_sp, fib_entry); | |
4498 | } | |
4499 | ||
80c238f9 IS |
4500 | static void mlxsw_sp_fib_node_entry_del(struct mlxsw_sp *mlxsw_sp, |
4501 | struct mlxsw_sp_fib_entry *fib_entry) | |
9aecce1c | 4502 | { |
9efbee6f IS |
4503 | struct mlxsw_sp_fib_node *fib_node = fib_entry->fib_node; |
4504 | ||
9aecce1c IS |
4505 | if (!mlxsw_sp_fib_node_entry_is_first(fib_node, fib_entry)) |
4506 | return; | |
4507 | ||
4508 | /* Promote the next entry by overwriting the deleted entry */ | |
4509 | if (!list_is_singular(&fib_node->entry_list)) { | |
4510 | struct mlxsw_sp_fib_entry *n = list_next_entry(fib_entry, list); | |
4511 | enum mlxsw_reg_ralue_op op = MLXSW_REG_RALUE_OP_WRITE_DELETE; | |
4512 | ||
4513 | mlxsw_sp_fib_entry_update(mlxsw_sp, n); | |
4514 | mlxsw_sp_fib_entry_offload_refresh(fib_entry, op, 0); | |
4515 | return; | |
4516 | } | |
4517 | ||
4518 | mlxsw_sp_fib_entry_del(mlxsw_sp, fib_entry); | |
4519 | } | |
4520 | ||
4521 | static int mlxsw_sp_fib4_node_entry_link(struct mlxsw_sp *mlxsw_sp, | |
4f1c7f1f | 4522 | struct mlxsw_sp_fib4_entry *fib4_entry, |
599cf8f9 | 4523 | bool replace, bool append) |
9aecce1c | 4524 | { |
9aecce1c IS |
4525 | int err; |
4526 | ||
9efbee6f | 4527 | err = mlxsw_sp_fib4_node_list_insert(fib4_entry, replace, append); |
9aecce1c IS |
4528 | if (err) |
4529 | return err; | |
4530 | ||
80c238f9 | 4531 | err = mlxsw_sp_fib_node_entry_add(mlxsw_sp, &fib4_entry->common); |
9aecce1c | 4532 | if (err) |
80c238f9 | 4533 | goto err_fib_node_entry_add; |
9aecce1c | 4534 | |
9aecce1c IS |
4535 | return 0; |
4536 | ||
80c238f9 | 4537 | err_fib_node_entry_add: |
4f1c7f1f | 4538 | mlxsw_sp_fib4_node_list_remove(fib4_entry); |
9aecce1c IS |
4539 | return err; |
4540 | } | |
4541 | ||
4542 | static void | |
4543 | mlxsw_sp_fib4_node_entry_unlink(struct mlxsw_sp *mlxsw_sp, | |
4f1c7f1f | 4544 | struct mlxsw_sp_fib4_entry *fib4_entry) |
9aecce1c | 4545 | { |
80c238f9 | 4546 | mlxsw_sp_fib_node_entry_del(mlxsw_sp, &fib4_entry->common); |
4f1c7f1f | 4547 | mlxsw_sp_fib4_node_list_remove(fib4_entry); |
4607f6d2 PM |
4548 | |
4549 | if (fib4_entry->common.type == MLXSW_SP_FIB_ENTRY_TYPE_IPIP_DECAP) | |
4550 | mlxsw_sp_fib_entry_decap_fini(mlxsw_sp, &fib4_entry->common); | |
9aecce1c IS |
4551 | } |
4552 | ||
599cf8f9 | 4553 | static void mlxsw_sp_fib4_entry_replace(struct mlxsw_sp *mlxsw_sp, |
4f1c7f1f | 4554 | struct mlxsw_sp_fib4_entry *fib4_entry, |
599cf8f9 IS |
4555 | bool replace) |
4556 | { | |
4f1c7f1f IS |
4557 | struct mlxsw_sp_fib_node *fib_node = fib4_entry->common.fib_node; |
4558 | struct mlxsw_sp_fib4_entry *replaced; | |
599cf8f9 IS |
4559 | |
4560 | if (!replace) | |
4561 | return; | |
4562 | ||
4563 | /* We inserted the new entry before replaced one */ | |
4f1c7f1f | 4564 | replaced = list_next_entry(fib4_entry, common.list); |
599cf8f9 IS |
4565 | |
4566 | mlxsw_sp_fib4_node_entry_unlink(mlxsw_sp, replaced); | |
4567 | mlxsw_sp_fib4_entry_destroy(mlxsw_sp, replaced); | |
731ea1ca | 4568 | mlxsw_sp_fib_node_put(mlxsw_sp, fib_node); |
599cf8f9 IS |
4569 | } |
4570 | ||
9aecce1c IS |
4571 | static int |
4572 | mlxsw_sp_router_fib4_add(struct mlxsw_sp *mlxsw_sp, | |
4283bce5 | 4573 | const struct fib_entry_notifier_info *fen_info, |
599cf8f9 | 4574 | bool replace, bool append) |
9aecce1c | 4575 | { |
4f1c7f1f | 4576 | struct mlxsw_sp_fib4_entry *fib4_entry; |
9aecce1c | 4577 | struct mlxsw_sp_fib_node *fib_node; |
61c503f9 JP |
4578 | int err; |
4579 | ||
9011b677 | 4580 | if (mlxsw_sp->router->aborted) |
b45f64d1 JP |
4581 | return 0; |
4582 | ||
731ea1ca IS |
4583 | fib_node = mlxsw_sp_fib_node_get(mlxsw_sp, fen_info->tb_id, |
4584 | &fen_info->dst, sizeof(fen_info->dst), | |
4585 | fen_info->dst_len, | |
4586 | MLXSW_SP_L3_PROTO_IPV4); | |
9aecce1c IS |
4587 | if (IS_ERR(fib_node)) { |
4588 | dev_warn(mlxsw_sp->bus_info->dev, "Failed to get FIB node\n"); | |
4589 | return PTR_ERR(fib_node); | |
b45f64d1 | 4590 | } |
61c503f9 | 4591 | |
4f1c7f1f IS |
4592 | fib4_entry = mlxsw_sp_fib4_entry_create(mlxsw_sp, fib_node, fen_info); |
4593 | if (IS_ERR(fib4_entry)) { | |
9aecce1c | 4594 | dev_warn(mlxsw_sp->bus_info->dev, "Failed to create FIB entry\n"); |
4f1c7f1f | 4595 | err = PTR_ERR(fib4_entry); |
9aecce1c IS |
4596 | goto err_fib4_entry_create; |
4597 | } | |
5b004412 | 4598 | |
4f1c7f1f | 4599 | err = mlxsw_sp_fib4_node_entry_link(mlxsw_sp, fib4_entry, replace, |
599cf8f9 | 4600 | append); |
b45f64d1 | 4601 | if (err) { |
9aecce1c IS |
4602 | dev_warn(mlxsw_sp->bus_info->dev, "Failed to link FIB entry to node\n"); |
4603 | goto err_fib4_node_entry_link; | |
b45f64d1 | 4604 | } |
9aecce1c | 4605 | |
4f1c7f1f | 4606 | mlxsw_sp_fib4_entry_replace(mlxsw_sp, fib4_entry, replace); |
599cf8f9 | 4607 | |
61c503f9 JP |
4608 | return 0; |
4609 | ||
9aecce1c | 4610 | err_fib4_node_entry_link: |
4f1c7f1f | 4611 | mlxsw_sp_fib4_entry_destroy(mlxsw_sp, fib4_entry); |
9aecce1c | 4612 | err_fib4_entry_create: |
731ea1ca | 4613 | mlxsw_sp_fib_node_put(mlxsw_sp, fib_node); |
61c503f9 JP |
4614 | return err; |
4615 | } | |
4616 | ||
37956d78 JP |
4617 | static void mlxsw_sp_router_fib4_del(struct mlxsw_sp *mlxsw_sp, |
4618 | struct fib_entry_notifier_info *fen_info) | |
61c503f9 | 4619 | { |
4f1c7f1f | 4620 | struct mlxsw_sp_fib4_entry *fib4_entry; |
9aecce1c | 4621 | struct mlxsw_sp_fib_node *fib_node; |
61c503f9 | 4622 | |
9011b677 | 4623 | if (mlxsw_sp->router->aborted) |
37956d78 | 4624 | return; |
b45f64d1 | 4625 | |
4f1c7f1f IS |
4626 | fib4_entry = mlxsw_sp_fib4_entry_lookup(mlxsw_sp, fen_info); |
4627 | if (WARN_ON(!fib4_entry)) | |
37956d78 | 4628 | return; |
4f1c7f1f | 4629 | fib_node = fib4_entry->common.fib_node; |
5b004412 | 4630 | |
4f1c7f1f IS |
4631 | mlxsw_sp_fib4_node_entry_unlink(mlxsw_sp, fib4_entry); |
4632 | mlxsw_sp_fib4_entry_destroy(mlxsw_sp, fib4_entry); | |
731ea1ca | 4633 | mlxsw_sp_fib_node_put(mlxsw_sp, fib_node); |
61c503f9 | 4634 | } |
b45f64d1 | 4635 | |
428b851f IS |
4636 | static bool mlxsw_sp_fib6_rt_should_ignore(const struct rt6_info *rt) |
4637 | { | |
4638 | /* Packets with link-local destination IP arriving to the router | |
4639 | * are trapped to the CPU, so no need to program specific routes | |
4640 | * for them. | |
4641 | */ | |
4642 | if (ipv6_addr_type(&rt->rt6i_dst.addr) & IPV6_ADDR_LINKLOCAL) | |
4643 | return true; | |
4644 | ||
4645 | /* Multicast routes aren't supported, so ignore them. Neighbour | |
4646 | * Discovery packets are specifically trapped. | |
4647 | */ | |
4648 | if (ipv6_addr_type(&rt->rt6i_dst.addr) & IPV6_ADDR_MULTICAST) | |
4649 | return true; | |
4650 | ||
4651 | /* Cloned routes are irrelevant in the forwarding path. */ | |
4652 | if (rt->rt6i_flags & RTF_CACHE) | |
4653 | return true; | |
4654 | ||
4655 | return false; | |
4656 | } | |
4657 | ||
4658 | static struct mlxsw_sp_rt6 *mlxsw_sp_rt6_create(struct rt6_info *rt) | |
4659 | { | |
4660 | struct mlxsw_sp_rt6 *mlxsw_sp_rt6; | |
4661 | ||
4662 | mlxsw_sp_rt6 = kzalloc(sizeof(*mlxsw_sp_rt6), GFP_KERNEL); | |
4663 | if (!mlxsw_sp_rt6) | |
4664 | return ERR_PTR(-ENOMEM); | |
4665 | ||
4666 | /* In case of route replace, replaced route is deleted with | |
4667 | * no notification. Take reference to prevent accessing freed | |
4668 | * memory. | |
4669 | */ | |
4670 | mlxsw_sp_rt6->rt = rt; | |
4671 | rt6_hold(rt); | |
4672 | ||
4673 | return mlxsw_sp_rt6; | |
4674 | } | |
4675 | ||
4676 | #if IS_ENABLED(CONFIG_IPV6) | |
4677 | static void mlxsw_sp_rt6_release(struct rt6_info *rt) | |
4678 | { | |
4679 | rt6_release(rt); | |
4680 | } | |
4681 | #else | |
4682 | static void mlxsw_sp_rt6_release(struct rt6_info *rt) | |
4683 | { | |
4684 | } | |
4685 | #endif | |
4686 | ||
4687 | static void mlxsw_sp_rt6_destroy(struct mlxsw_sp_rt6 *mlxsw_sp_rt6) | |
4688 | { | |
4689 | mlxsw_sp_rt6_release(mlxsw_sp_rt6->rt); | |
4690 | kfree(mlxsw_sp_rt6); | |
4691 | } | |
4692 | ||
4693 | static bool mlxsw_sp_fib6_rt_can_mp(const struct rt6_info *rt) | |
4694 | { | |
4695 | /* RTF_CACHE routes are ignored */ | |
4696 | return (rt->rt6i_flags & (RTF_GATEWAY | RTF_ADDRCONF)) == RTF_GATEWAY; | |
4697 | } | |
4698 | ||
4699 | static struct rt6_info * | |
4700 | mlxsw_sp_fib6_entry_rt(const struct mlxsw_sp_fib6_entry *fib6_entry) | |
4701 | { | |
4702 | return list_first_entry(&fib6_entry->rt6_list, struct mlxsw_sp_rt6, | |
4703 | list)->rt; | |
4704 | } | |
4705 | ||
4706 | static struct mlxsw_sp_fib6_entry * | |
4707 | mlxsw_sp_fib6_node_mp_entry_find(const struct mlxsw_sp_fib_node *fib_node, | |
0a7fd1ac | 4708 | const struct rt6_info *nrt, bool replace) |
428b851f IS |
4709 | { |
4710 | struct mlxsw_sp_fib6_entry *fib6_entry; | |
4711 | ||
0a7fd1ac | 4712 | if (!mlxsw_sp_fib6_rt_can_mp(nrt) || replace) |
428b851f IS |
4713 | return NULL; |
4714 | ||
4715 | list_for_each_entry(fib6_entry, &fib_node->entry_list, common.list) { | |
4716 | struct rt6_info *rt = mlxsw_sp_fib6_entry_rt(fib6_entry); | |
4717 | ||
4718 | /* RT6_TABLE_LOCAL and RT6_TABLE_MAIN share the same | |
4719 | * virtual router. | |
4720 | */ | |
4721 | if (rt->rt6i_table->tb6_id > nrt->rt6i_table->tb6_id) | |
4722 | continue; | |
4723 | if (rt->rt6i_table->tb6_id != nrt->rt6i_table->tb6_id) | |
4724 | break; | |
4725 | if (rt->rt6i_metric < nrt->rt6i_metric) | |
4726 | continue; | |
4727 | if (rt->rt6i_metric == nrt->rt6i_metric && | |
4728 | mlxsw_sp_fib6_rt_can_mp(rt)) | |
4729 | return fib6_entry; | |
4730 | if (rt->rt6i_metric > nrt->rt6i_metric) | |
4731 | break; | |
4732 | } | |
4733 | ||
4734 | return NULL; | |
4735 | } | |
4736 | ||
4737 | static struct mlxsw_sp_rt6 * | |
4738 | mlxsw_sp_fib6_entry_rt_find(const struct mlxsw_sp_fib6_entry *fib6_entry, | |
4739 | const struct rt6_info *rt) | |
4740 | { | |
4741 | struct mlxsw_sp_rt6 *mlxsw_sp_rt6; | |
4742 | ||
4743 | list_for_each_entry(mlxsw_sp_rt6, &fib6_entry->rt6_list, list) { | |
4744 | if (mlxsw_sp_rt6->rt == rt) | |
4745 | return mlxsw_sp_rt6; | |
4746 | } | |
4747 | ||
4748 | return NULL; | |
4749 | } | |
4750 | ||
8f28a309 PM |
4751 | static bool mlxsw_sp_nexthop6_ipip_type(const struct mlxsw_sp *mlxsw_sp, |
4752 | const struct rt6_info *rt, | |
4753 | enum mlxsw_sp_ipip_type *ret) | |
4754 | { | |
4755 | return rt->dst.dev && | |
4756 | mlxsw_sp_netdev_ipip_type(mlxsw_sp, rt->dst.dev, ret); | |
4757 | } | |
4758 | ||
35225e47 PM |
4759 | static int mlxsw_sp_nexthop6_type_init(struct mlxsw_sp *mlxsw_sp, |
4760 | struct mlxsw_sp_nexthop_group *nh_grp, | |
4761 | struct mlxsw_sp_nexthop *nh, | |
4762 | const struct rt6_info *rt) | |
428b851f | 4763 | { |
d97cda5f PM |
4764 | const struct mlxsw_sp_ipip_ops *ipip_ops; |
4765 | struct mlxsw_sp_ipip_entry *ipip_entry; | |
428b851f IS |
4766 | struct net_device *dev = rt->dst.dev; |
4767 | struct mlxsw_sp_rif *rif; | |
4768 | int err; | |
4769 | ||
d97cda5f PM |
4770 | ipip_entry = mlxsw_sp_ipip_entry_find_by_ol_dev(mlxsw_sp, dev); |
4771 | if (ipip_entry) { | |
4772 | ipip_ops = mlxsw_sp->router->ipip_ops_arr[ipip_entry->ipipt]; | |
4773 | if (ipip_ops->can_offload(mlxsw_sp, dev, | |
4774 | MLXSW_SP_L3_PROTO_IPV6)) { | |
4775 | nh->type = MLXSW_SP_NEXTHOP_TYPE_IPIP; | |
4776 | mlxsw_sp_nexthop_ipip_init(mlxsw_sp, nh, ipip_entry); | |
4777 | return 0; | |
4778 | } | |
8f28a309 PM |
4779 | } |
4780 | ||
35225e47 | 4781 | nh->type = MLXSW_SP_NEXTHOP_TYPE_ETH; |
428b851f IS |
4782 | rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev); |
4783 | if (!rif) | |
4784 | return 0; | |
4785 | mlxsw_sp_nexthop_rif_init(nh, rif); | |
4786 | ||
4787 | err = mlxsw_sp_nexthop_neigh_init(mlxsw_sp, nh); | |
4788 | if (err) | |
4789 | goto err_nexthop_neigh_init; | |
4790 | ||
4791 | return 0; | |
4792 | ||
4793 | err_nexthop_neigh_init: | |
4794 | mlxsw_sp_nexthop_rif_fini(nh); | |
4795 | return err; | |
4796 | } | |
4797 | ||
35225e47 PM |
4798 | static void mlxsw_sp_nexthop6_type_fini(struct mlxsw_sp *mlxsw_sp, |
4799 | struct mlxsw_sp_nexthop *nh) | |
4800 | { | |
4801 | mlxsw_sp_nexthop_type_fini(mlxsw_sp, nh); | |
4802 | } | |
4803 | ||
4804 | static int mlxsw_sp_nexthop6_init(struct mlxsw_sp *mlxsw_sp, | |
4805 | struct mlxsw_sp_nexthop_group *nh_grp, | |
4806 | struct mlxsw_sp_nexthop *nh, | |
4807 | const struct rt6_info *rt) | |
4808 | { | |
4809 | struct net_device *dev = rt->dst.dev; | |
4810 | ||
4811 | nh->nh_grp = nh_grp; | |
3743d88a | 4812 | nh->nh_weight = rt->rt6i_nh_weight; |
35225e47 | 4813 | memcpy(&nh->gw_addr, &rt->rt6i_gateway, sizeof(nh->gw_addr)); |
a5390278 | 4814 | mlxsw_sp_nexthop_counter_alloc(mlxsw_sp, nh); |
35225e47 | 4815 | |
dbe4598c AS |
4816 | list_add_tail(&nh->router_list_node, &mlxsw_sp->router->nexthop_list); |
4817 | ||
35225e47 PM |
4818 | if (!dev) |
4819 | return 0; | |
4820 | nh->ifindex = dev->ifindex; | |
4821 | ||
4822 | return mlxsw_sp_nexthop6_type_init(mlxsw_sp, nh_grp, nh, rt); | |
4823 | } | |
4824 | ||
428b851f IS |
4825 | static void mlxsw_sp_nexthop6_fini(struct mlxsw_sp *mlxsw_sp, |
4826 | struct mlxsw_sp_nexthop *nh) | |
4827 | { | |
35225e47 | 4828 | mlxsw_sp_nexthop6_type_fini(mlxsw_sp, nh); |
dbe4598c | 4829 | list_del(&nh->router_list_node); |
a5390278 | 4830 | mlxsw_sp_nexthop_counter_free(mlxsw_sp, nh); |
428b851f IS |
4831 | } |
4832 | ||
f6050ee6 PM |
4833 | static bool mlxsw_sp_rt6_is_gateway(const struct mlxsw_sp *mlxsw_sp, |
4834 | const struct rt6_info *rt) | |
4835 | { | |
8f28a309 PM |
4836 | return rt->rt6i_flags & RTF_GATEWAY || |
4837 | mlxsw_sp_nexthop6_ipip_type(mlxsw_sp, rt, NULL); | |
f6050ee6 PM |
4838 | } |
4839 | ||
428b851f IS |
4840 | static struct mlxsw_sp_nexthop_group * |
4841 | mlxsw_sp_nexthop6_group_create(struct mlxsw_sp *mlxsw_sp, | |
4842 | struct mlxsw_sp_fib6_entry *fib6_entry) | |
4843 | { | |
4844 | struct mlxsw_sp_nexthop_group *nh_grp; | |
4845 | struct mlxsw_sp_rt6 *mlxsw_sp_rt6; | |
4846 | struct mlxsw_sp_nexthop *nh; | |
4847 | size_t alloc_size; | |
4848 | int i = 0; | |
4849 | int err; | |
4850 | ||
4851 | alloc_size = sizeof(*nh_grp) + | |
4852 | fib6_entry->nrt6 * sizeof(struct mlxsw_sp_nexthop); | |
4853 | nh_grp = kzalloc(alloc_size, GFP_KERNEL); | |
4854 | if (!nh_grp) | |
4855 | return ERR_PTR(-ENOMEM); | |
4856 | INIT_LIST_HEAD(&nh_grp->fib_list); | |
4857 | #if IS_ENABLED(CONFIG_IPV6) | |
4858 | nh_grp->neigh_tbl = &nd_tbl; | |
4859 | #endif | |
4860 | mlxsw_sp_rt6 = list_first_entry(&fib6_entry->rt6_list, | |
4861 | struct mlxsw_sp_rt6, list); | |
f6050ee6 | 4862 | nh_grp->gateway = mlxsw_sp_rt6_is_gateway(mlxsw_sp, mlxsw_sp_rt6->rt); |
428b851f IS |
4863 | nh_grp->count = fib6_entry->nrt6; |
4864 | for (i = 0; i < nh_grp->count; i++) { | |
4865 | struct rt6_info *rt = mlxsw_sp_rt6->rt; | |
4866 | ||
4867 | nh = &nh_grp->nexthops[i]; | |
4868 | err = mlxsw_sp_nexthop6_init(mlxsw_sp, nh_grp, nh, rt); | |
4869 | if (err) | |
4870 | goto err_nexthop6_init; | |
4871 | mlxsw_sp_rt6 = list_next_entry(mlxsw_sp_rt6, list); | |
4872 | } | |
e6f3b379 AS |
4873 | |
4874 | err = mlxsw_sp_nexthop_group_insert(mlxsw_sp, nh_grp); | |
4875 | if (err) | |
4876 | goto err_nexthop_group_insert; | |
4877 | ||
428b851f IS |
4878 | mlxsw_sp_nexthop_group_refresh(mlxsw_sp, nh_grp); |
4879 | return nh_grp; | |
4880 | ||
e6f3b379 | 4881 | err_nexthop_group_insert: |
428b851f IS |
4882 | err_nexthop6_init: |
4883 | for (i--; i >= 0; i--) { | |
4884 | nh = &nh_grp->nexthops[i]; | |
4885 | mlxsw_sp_nexthop6_fini(mlxsw_sp, nh); | |
4886 | } | |
4887 | kfree(nh_grp); | |
4888 | return ERR_PTR(err); | |
4889 | } | |
4890 | ||
4891 | static void | |
4892 | mlxsw_sp_nexthop6_group_destroy(struct mlxsw_sp *mlxsw_sp, | |
4893 | struct mlxsw_sp_nexthop_group *nh_grp) | |
4894 | { | |
4895 | struct mlxsw_sp_nexthop *nh; | |
4896 | int i = nh_grp->count; | |
4897 | ||
e6f3b379 | 4898 | mlxsw_sp_nexthop_group_remove(mlxsw_sp, nh_grp); |
428b851f IS |
4899 | for (i--; i >= 0; i--) { |
4900 | nh = &nh_grp->nexthops[i]; | |
4901 | mlxsw_sp_nexthop6_fini(mlxsw_sp, nh); | |
4902 | } | |
4903 | mlxsw_sp_nexthop_group_refresh(mlxsw_sp, nh_grp); | |
4904 | WARN_ON(nh_grp->adj_index_valid); | |
4905 | kfree(nh_grp); | |
4906 | } | |
4907 | ||
4908 | static int mlxsw_sp_nexthop6_group_get(struct mlxsw_sp *mlxsw_sp, | |
4909 | struct mlxsw_sp_fib6_entry *fib6_entry) | |
4910 | { | |
4911 | struct mlxsw_sp_nexthop_group *nh_grp; | |
4912 | ||
e6f3b379 AS |
4913 | nh_grp = mlxsw_sp_nexthop6_group_lookup(mlxsw_sp, fib6_entry); |
4914 | if (!nh_grp) { | |
4915 | nh_grp = mlxsw_sp_nexthop6_group_create(mlxsw_sp, fib6_entry); | |
4916 | if (IS_ERR(nh_grp)) | |
4917 | return PTR_ERR(nh_grp); | |
4918 | } | |
428b851f IS |
4919 | |
4920 | list_add_tail(&fib6_entry->common.nexthop_group_node, | |
4921 | &nh_grp->fib_list); | |
4922 | fib6_entry->common.nh_group = nh_grp; | |
4923 | ||
4924 | return 0; | |
4925 | } | |
4926 | ||
4927 | static void mlxsw_sp_nexthop6_group_put(struct mlxsw_sp *mlxsw_sp, | |
4928 | struct mlxsw_sp_fib_entry *fib_entry) | |
4929 | { | |
4930 | struct mlxsw_sp_nexthop_group *nh_grp = fib_entry->nh_group; | |
4931 | ||
4932 | list_del(&fib_entry->nexthop_group_node); | |
4933 | if (!list_empty(&nh_grp->fib_list)) | |
4934 | return; | |
4935 | mlxsw_sp_nexthop6_group_destroy(mlxsw_sp, nh_grp); | |
4936 | } | |
4937 | ||
4938 | static int | |
4939 | mlxsw_sp_nexthop6_group_update(struct mlxsw_sp *mlxsw_sp, | |
4940 | struct mlxsw_sp_fib6_entry *fib6_entry) | |
4941 | { | |
4942 | struct mlxsw_sp_nexthop_group *old_nh_grp = fib6_entry->common.nh_group; | |
4943 | int err; | |
4944 | ||
4945 | fib6_entry->common.nh_group = NULL; | |
4946 | list_del(&fib6_entry->common.nexthop_group_node); | |
4947 | ||
4948 | err = mlxsw_sp_nexthop6_group_get(mlxsw_sp, fib6_entry); | |
4949 | if (err) | |
4950 | goto err_nexthop6_group_get; | |
4951 | ||
4952 | /* In case this entry is offloaded, then the adjacency index | |
4953 | * currently associated with it in the device's table is that | |
4954 | * of the old group. Start using the new one instead. | |
4955 | */ | |
4956 | err = mlxsw_sp_fib_node_entry_add(mlxsw_sp, &fib6_entry->common); | |
4957 | if (err) | |
4958 | goto err_fib_node_entry_add; | |
4959 | ||
4960 | if (list_empty(&old_nh_grp->fib_list)) | |
4961 | mlxsw_sp_nexthop6_group_destroy(mlxsw_sp, old_nh_grp); | |
4962 | ||
4963 | return 0; | |
4964 | ||
4965 | err_fib_node_entry_add: | |
4966 | mlxsw_sp_nexthop6_group_put(mlxsw_sp, &fib6_entry->common); | |
4967 | err_nexthop6_group_get: | |
4968 | list_add_tail(&fib6_entry->common.nexthop_group_node, | |
4969 | &old_nh_grp->fib_list); | |
4970 | fib6_entry->common.nh_group = old_nh_grp; | |
4971 | return err; | |
4972 | } | |
4973 | ||
4974 | static int | |
4975 | mlxsw_sp_fib6_entry_nexthop_add(struct mlxsw_sp *mlxsw_sp, | |
4976 | struct mlxsw_sp_fib6_entry *fib6_entry, | |
4977 | struct rt6_info *rt) | |
4978 | { | |
4979 | struct mlxsw_sp_rt6 *mlxsw_sp_rt6; | |
4980 | int err; | |
4981 | ||
4982 | mlxsw_sp_rt6 = mlxsw_sp_rt6_create(rt); | |
4983 | if (IS_ERR(mlxsw_sp_rt6)) | |
4984 | return PTR_ERR(mlxsw_sp_rt6); | |
4985 | ||
4986 | list_add_tail(&mlxsw_sp_rt6->list, &fib6_entry->rt6_list); | |
4987 | fib6_entry->nrt6++; | |
4988 | ||
4989 | err = mlxsw_sp_nexthop6_group_update(mlxsw_sp, fib6_entry); | |
4990 | if (err) | |
4991 | goto err_nexthop6_group_update; | |
4992 | ||
4993 | return 0; | |
4994 | ||
4995 | err_nexthop6_group_update: | |
4996 | fib6_entry->nrt6--; | |
4997 | list_del(&mlxsw_sp_rt6->list); | |
4998 | mlxsw_sp_rt6_destroy(mlxsw_sp_rt6); | |
4999 | return err; | |
5000 | } | |
5001 | ||
5002 | static void | |
5003 | mlxsw_sp_fib6_entry_nexthop_del(struct mlxsw_sp *mlxsw_sp, | |
5004 | struct mlxsw_sp_fib6_entry *fib6_entry, | |
5005 | struct rt6_info *rt) | |
5006 | { | |
5007 | struct mlxsw_sp_rt6 *mlxsw_sp_rt6; | |
5008 | ||
5009 | mlxsw_sp_rt6 = mlxsw_sp_fib6_entry_rt_find(fib6_entry, rt); | |
5010 | if (WARN_ON(!mlxsw_sp_rt6)) | |
5011 | return; | |
5012 | ||
5013 | fib6_entry->nrt6--; | |
5014 | list_del(&mlxsw_sp_rt6->list); | |
5015 | mlxsw_sp_nexthop6_group_update(mlxsw_sp, fib6_entry); | |
5016 | mlxsw_sp_rt6_destroy(mlxsw_sp_rt6); | |
5017 | } | |
5018 | ||
f6050ee6 PM |
5019 | static void mlxsw_sp_fib6_entry_type_set(struct mlxsw_sp *mlxsw_sp, |
5020 | struct mlxsw_sp_fib_entry *fib_entry, | |
428b851f IS |
5021 | const struct rt6_info *rt) |
5022 | { | |
5023 | /* Packets hitting RTF_REJECT routes need to be discarded by the | |
5024 | * stack. We can rely on their destination device not having a | |
5025 | * RIF (it's the loopback device) and can thus use action type | |
5026 | * local, which will cause them to be trapped with a lower | |
5027 | * priority than packets that need to be locally received. | |
5028 | */ | |
d3b6d377 | 5029 | if (rt->rt6i_flags & (RTF_LOCAL | RTF_ANYCAST)) |
428b851f IS |
5030 | fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_TRAP; |
5031 | else if (rt->rt6i_flags & RTF_REJECT) | |
5032 | fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_LOCAL; | |
f6050ee6 | 5033 | else if (mlxsw_sp_rt6_is_gateway(mlxsw_sp, rt)) |
428b851f IS |
5034 | fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_REMOTE; |
5035 | else | |
5036 | fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_LOCAL; | |
5037 | } | |
5038 | ||
5039 | static void | |
5040 | mlxsw_sp_fib6_entry_rt_destroy_all(struct mlxsw_sp_fib6_entry *fib6_entry) | |
5041 | { | |
5042 | struct mlxsw_sp_rt6 *mlxsw_sp_rt6, *tmp; | |
5043 | ||
5044 | list_for_each_entry_safe(mlxsw_sp_rt6, tmp, &fib6_entry->rt6_list, | |
5045 | list) { | |
5046 | fib6_entry->nrt6--; | |
5047 | list_del(&mlxsw_sp_rt6->list); | |
5048 | mlxsw_sp_rt6_destroy(mlxsw_sp_rt6); | |
5049 | } | |
5050 | } | |
5051 | ||
5052 | static struct mlxsw_sp_fib6_entry * | |
5053 | mlxsw_sp_fib6_entry_create(struct mlxsw_sp *mlxsw_sp, | |
5054 | struct mlxsw_sp_fib_node *fib_node, | |
5055 | struct rt6_info *rt) | |
5056 | { | |
5057 | struct mlxsw_sp_fib6_entry *fib6_entry; | |
5058 | struct mlxsw_sp_fib_entry *fib_entry; | |
5059 | struct mlxsw_sp_rt6 *mlxsw_sp_rt6; | |
5060 | int err; | |
5061 | ||
5062 | fib6_entry = kzalloc(sizeof(*fib6_entry), GFP_KERNEL); | |
5063 | if (!fib6_entry) | |
5064 | return ERR_PTR(-ENOMEM); | |
5065 | fib_entry = &fib6_entry->common; | |
5066 | ||
5067 | mlxsw_sp_rt6 = mlxsw_sp_rt6_create(rt); | |
5068 | if (IS_ERR(mlxsw_sp_rt6)) { | |
5069 | err = PTR_ERR(mlxsw_sp_rt6); | |
5070 | goto err_rt6_create; | |
5071 | } | |
5072 | ||
f6050ee6 | 5073 | mlxsw_sp_fib6_entry_type_set(mlxsw_sp, fib_entry, mlxsw_sp_rt6->rt); |
428b851f IS |
5074 | |
5075 | INIT_LIST_HEAD(&fib6_entry->rt6_list); | |
5076 | list_add_tail(&mlxsw_sp_rt6->list, &fib6_entry->rt6_list); | |
5077 | fib6_entry->nrt6 = 1; | |
5078 | err = mlxsw_sp_nexthop6_group_get(mlxsw_sp, fib6_entry); | |
5079 | if (err) | |
5080 | goto err_nexthop6_group_get; | |
5081 | ||
5082 | fib_entry->fib_node = fib_node; | |
5083 | ||
5084 | return fib6_entry; | |
5085 | ||
5086 | err_nexthop6_group_get: | |
5087 | list_del(&mlxsw_sp_rt6->list); | |
5088 | mlxsw_sp_rt6_destroy(mlxsw_sp_rt6); | |
5089 | err_rt6_create: | |
5090 | kfree(fib6_entry); | |
5091 | return ERR_PTR(err); | |
5092 | } | |
5093 | ||
5094 | static void mlxsw_sp_fib6_entry_destroy(struct mlxsw_sp *mlxsw_sp, | |
5095 | struct mlxsw_sp_fib6_entry *fib6_entry) | |
5096 | { | |
5097 | mlxsw_sp_nexthop6_group_put(mlxsw_sp, &fib6_entry->common); | |
5098 | mlxsw_sp_fib6_entry_rt_destroy_all(fib6_entry); | |
5099 | WARN_ON(fib6_entry->nrt6); | |
5100 | kfree(fib6_entry); | |
5101 | } | |
5102 | ||
5103 | static struct mlxsw_sp_fib6_entry * | |
5104 | mlxsw_sp_fib6_node_entry_find(const struct mlxsw_sp_fib_node *fib_node, | |
0a7fd1ac | 5105 | const struct rt6_info *nrt, bool replace) |
428b851f | 5106 | { |
0a7fd1ac | 5107 | struct mlxsw_sp_fib6_entry *fib6_entry, *fallback = NULL; |
428b851f IS |
5108 | |
5109 | list_for_each_entry(fib6_entry, &fib_node->entry_list, common.list) { | |
5110 | struct rt6_info *rt = mlxsw_sp_fib6_entry_rt(fib6_entry); | |
5111 | ||
5112 | if (rt->rt6i_table->tb6_id > nrt->rt6i_table->tb6_id) | |
5113 | continue; | |
5114 | if (rt->rt6i_table->tb6_id != nrt->rt6i_table->tb6_id) | |
5115 | break; | |
0a7fd1ac IS |
5116 | if (replace && rt->rt6i_metric == nrt->rt6i_metric) { |
5117 | if (mlxsw_sp_fib6_rt_can_mp(rt) == | |
5118 | mlxsw_sp_fib6_rt_can_mp(nrt)) | |
5119 | return fib6_entry; | |
5120 | if (mlxsw_sp_fib6_rt_can_mp(nrt)) | |
5121 | fallback = fallback ?: fib6_entry; | |
5122 | } | |
428b851f | 5123 | if (rt->rt6i_metric > nrt->rt6i_metric) |
0a7fd1ac | 5124 | return fallback ?: fib6_entry; |
428b851f IS |
5125 | } |
5126 | ||
0a7fd1ac | 5127 | return fallback; |
428b851f IS |
5128 | } |
5129 | ||
5130 | static int | |
0a7fd1ac IS |
5131 | mlxsw_sp_fib6_node_list_insert(struct mlxsw_sp_fib6_entry *new6_entry, |
5132 | bool replace) | |
428b851f IS |
5133 | { |
5134 | struct mlxsw_sp_fib_node *fib_node = new6_entry->common.fib_node; | |
5135 | struct rt6_info *nrt = mlxsw_sp_fib6_entry_rt(new6_entry); | |
5136 | struct mlxsw_sp_fib6_entry *fib6_entry; | |
5137 | ||
0a7fd1ac IS |
5138 | fib6_entry = mlxsw_sp_fib6_node_entry_find(fib_node, nrt, replace); |
5139 | ||
5140 | if (replace && WARN_ON(!fib6_entry)) | |
5141 | return -EINVAL; | |
428b851f IS |
5142 | |
5143 | if (fib6_entry) { | |
5144 | list_add_tail(&new6_entry->common.list, | |
5145 | &fib6_entry->common.list); | |
5146 | } else { | |
5147 | struct mlxsw_sp_fib6_entry *last; | |
5148 | ||
5149 | list_for_each_entry(last, &fib_node->entry_list, common.list) { | |
5150 | struct rt6_info *rt = mlxsw_sp_fib6_entry_rt(last); | |
5151 | ||
5152 | if (nrt->rt6i_table->tb6_id > rt->rt6i_table->tb6_id) | |
5153 | break; | |
5154 | fib6_entry = last; | |
5155 | } | |
5156 | ||
5157 | if (fib6_entry) | |
5158 | list_add(&new6_entry->common.list, | |
5159 | &fib6_entry->common.list); | |
5160 | else | |
5161 | list_add(&new6_entry->common.list, | |
5162 | &fib_node->entry_list); | |
5163 | } | |
5164 | ||
5165 | return 0; | |
5166 | } | |
5167 | ||
5168 | static void | |
5169 | mlxsw_sp_fib6_node_list_remove(struct mlxsw_sp_fib6_entry *fib6_entry) | |
5170 | { | |
5171 | list_del(&fib6_entry->common.list); | |
5172 | } | |
5173 | ||
5174 | static int mlxsw_sp_fib6_node_entry_link(struct mlxsw_sp *mlxsw_sp, | |
0a7fd1ac IS |
5175 | struct mlxsw_sp_fib6_entry *fib6_entry, |
5176 | bool replace) | |
428b851f IS |
5177 | { |
5178 | int err; | |
5179 | ||
0a7fd1ac | 5180 | err = mlxsw_sp_fib6_node_list_insert(fib6_entry, replace); |
428b851f IS |
5181 | if (err) |
5182 | return err; | |
5183 | ||
5184 | err = mlxsw_sp_fib_node_entry_add(mlxsw_sp, &fib6_entry->common); | |
5185 | if (err) | |
5186 | goto err_fib_node_entry_add; | |
5187 | ||
5188 | return 0; | |
5189 | ||
5190 | err_fib_node_entry_add: | |
5191 | mlxsw_sp_fib6_node_list_remove(fib6_entry); | |
5192 | return err; | |
5193 | } | |
5194 | ||
5195 | static void | |
5196 | mlxsw_sp_fib6_node_entry_unlink(struct mlxsw_sp *mlxsw_sp, | |
5197 | struct mlxsw_sp_fib6_entry *fib6_entry) | |
5198 | { | |
5199 | mlxsw_sp_fib_node_entry_del(mlxsw_sp, &fib6_entry->common); | |
5200 | mlxsw_sp_fib6_node_list_remove(fib6_entry); | |
5201 | } | |
5202 | ||
5203 | static struct mlxsw_sp_fib6_entry * | |
5204 | mlxsw_sp_fib6_entry_lookup(struct mlxsw_sp *mlxsw_sp, | |
5205 | const struct rt6_info *rt) | |
5206 | { | |
5207 | struct mlxsw_sp_fib6_entry *fib6_entry; | |
5208 | struct mlxsw_sp_fib_node *fib_node; | |
5209 | struct mlxsw_sp_fib *fib; | |
5210 | struct mlxsw_sp_vr *vr; | |
5211 | ||
5212 | vr = mlxsw_sp_vr_find(mlxsw_sp, rt->rt6i_table->tb6_id); | |
5213 | if (!vr) | |
5214 | return NULL; | |
5215 | fib = mlxsw_sp_vr_fib(vr, MLXSW_SP_L3_PROTO_IPV6); | |
5216 | ||
5217 | fib_node = mlxsw_sp_fib_node_lookup(fib, &rt->rt6i_dst.addr, | |
5218 | sizeof(rt->rt6i_dst.addr), | |
5219 | rt->rt6i_dst.plen); | |
5220 | if (!fib_node) | |
5221 | return NULL; | |
5222 | ||
5223 | list_for_each_entry(fib6_entry, &fib_node->entry_list, common.list) { | |
5224 | struct rt6_info *iter_rt = mlxsw_sp_fib6_entry_rt(fib6_entry); | |
5225 | ||
5226 | if (rt->rt6i_table->tb6_id == iter_rt->rt6i_table->tb6_id && | |
5227 | rt->rt6i_metric == iter_rt->rt6i_metric && | |
5228 | mlxsw_sp_fib6_entry_rt_find(fib6_entry, rt)) | |
5229 | return fib6_entry; | |
5230 | } | |
5231 | ||
5232 | return NULL; | |
5233 | } | |
5234 | ||
0a7fd1ac IS |
5235 | static void mlxsw_sp_fib6_entry_replace(struct mlxsw_sp *mlxsw_sp, |
5236 | struct mlxsw_sp_fib6_entry *fib6_entry, | |
5237 | bool replace) | |
5238 | { | |
5239 | struct mlxsw_sp_fib_node *fib_node = fib6_entry->common.fib_node; | |
5240 | struct mlxsw_sp_fib6_entry *replaced; | |
5241 | ||
5242 | if (!replace) | |
5243 | return; | |
5244 | ||
5245 | replaced = list_next_entry(fib6_entry, common.list); | |
5246 | ||
5247 | mlxsw_sp_fib6_node_entry_unlink(mlxsw_sp, replaced); | |
5248 | mlxsw_sp_fib6_entry_destroy(mlxsw_sp, replaced); | |
5249 | mlxsw_sp_fib_node_put(mlxsw_sp, fib_node); | |
5250 | } | |
5251 | ||
428b851f | 5252 | static int mlxsw_sp_router_fib6_add(struct mlxsw_sp *mlxsw_sp, |
0a7fd1ac | 5253 | struct rt6_info *rt, bool replace) |
428b851f IS |
5254 | { |
5255 | struct mlxsw_sp_fib6_entry *fib6_entry; | |
5256 | struct mlxsw_sp_fib_node *fib_node; | |
5257 | int err; | |
5258 | ||
5259 | if (mlxsw_sp->router->aborted) | |
5260 | return 0; | |
5261 | ||
f36f5ac6 IS |
5262 | if (rt->rt6i_src.plen) |
5263 | return -EINVAL; | |
5264 | ||
428b851f IS |
5265 | if (mlxsw_sp_fib6_rt_should_ignore(rt)) |
5266 | return 0; | |
5267 | ||
5268 | fib_node = mlxsw_sp_fib_node_get(mlxsw_sp, rt->rt6i_table->tb6_id, | |
5269 | &rt->rt6i_dst.addr, | |
5270 | sizeof(rt->rt6i_dst.addr), | |
5271 | rt->rt6i_dst.plen, | |
5272 | MLXSW_SP_L3_PROTO_IPV6); | |
5273 | if (IS_ERR(fib_node)) | |
5274 | return PTR_ERR(fib_node); | |
5275 | ||
5276 | /* Before creating a new entry, try to append route to an existing | |
5277 | * multipath entry. | |
5278 | */ | |
0a7fd1ac | 5279 | fib6_entry = mlxsw_sp_fib6_node_mp_entry_find(fib_node, rt, replace); |
428b851f IS |
5280 | if (fib6_entry) { |
5281 | err = mlxsw_sp_fib6_entry_nexthop_add(mlxsw_sp, fib6_entry, rt); | |
5282 | if (err) | |
5283 | goto err_fib6_entry_nexthop_add; | |
5284 | return 0; | |
5285 | } | |
5286 | ||
5287 | fib6_entry = mlxsw_sp_fib6_entry_create(mlxsw_sp, fib_node, rt); | |
5288 | if (IS_ERR(fib6_entry)) { | |
5289 | err = PTR_ERR(fib6_entry); | |
5290 | goto err_fib6_entry_create; | |
5291 | } | |
5292 | ||
0a7fd1ac | 5293 | err = mlxsw_sp_fib6_node_entry_link(mlxsw_sp, fib6_entry, replace); |
428b851f IS |
5294 | if (err) |
5295 | goto err_fib6_node_entry_link; | |
5296 | ||
0a7fd1ac IS |
5297 | mlxsw_sp_fib6_entry_replace(mlxsw_sp, fib6_entry, replace); |
5298 | ||
428b851f IS |
5299 | return 0; |
5300 | ||
5301 | err_fib6_node_entry_link: | |
5302 | mlxsw_sp_fib6_entry_destroy(mlxsw_sp, fib6_entry); | |
5303 | err_fib6_entry_create: | |
5304 | err_fib6_entry_nexthop_add: | |
5305 | mlxsw_sp_fib_node_put(mlxsw_sp, fib_node); | |
5306 | return err; | |
5307 | } | |
5308 | ||
5309 | static void mlxsw_sp_router_fib6_del(struct mlxsw_sp *mlxsw_sp, | |
5310 | struct rt6_info *rt) | |
5311 | { | |
5312 | struct mlxsw_sp_fib6_entry *fib6_entry; | |
5313 | struct mlxsw_sp_fib_node *fib_node; | |
5314 | ||
5315 | if (mlxsw_sp->router->aborted) | |
5316 | return; | |
5317 | ||
5318 | if (mlxsw_sp_fib6_rt_should_ignore(rt)) | |
5319 | return; | |
5320 | ||
5321 | fib6_entry = mlxsw_sp_fib6_entry_lookup(mlxsw_sp, rt); | |
5322 | if (WARN_ON(!fib6_entry)) | |
5323 | return; | |
5324 | ||
5325 | /* If route is part of a multipath entry, but not the last one | |
5326 | * removed, then only reduce its nexthop group. | |
5327 | */ | |
5328 | if (!list_is_singular(&fib6_entry->rt6_list)) { | |
5329 | mlxsw_sp_fib6_entry_nexthop_del(mlxsw_sp, fib6_entry, rt); | |
5330 | return; | |
5331 | } | |
5332 | ||
5333 | fib_node = fib6_entry->common.fib_node; | |
5334 | ||
5335 | mlxsw_sp_fib6_node_entry_unlink(mlxsw_sp, fib6_entry); | |
5336 | mlxsw_sp_fib6_entry_destroy(mlxsw_sp, fib6_entry); | |
5337 | mlxsw_sp_fib_node_put(mlxsw_sp, fib_node); | |
5338 | } | |
5339 | ||
bc65a8a4 IS |
5340 | static int __mlxsw_sp_router_set_abort_trap(struct mlxsw_sp *mlxsw_sp, |
5341 | enum mlxsw_reg_ralxx_protocol proto, | |
5342 | u8 tree_id) | |
b45f64d1 JP |
5343 | { |
5344 | char ralta_pl[MLXSW_REG_RALTA_LEN]; | |
5345 | char ralst_pl[MLXSW_REG_RALST_LEN]; | |
b5d90e6d | 5346 | int i, err; |
b45f64d1 | 5347 | |
bc65a8a4 | 5348 | mlxsw_reg_ralta_pack(ralta_pl, true, proto, tree_id); |
b45f64d1 JP |
5349 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralta), ralta_pl); |
5350 | if (err) | |
5351 | return err; | |
5352 | ||
bc65a8a4 | 5353 | mlxsw_reg_ralst_pack(ralst_pl, 0xff, tree_id); |
b45f64d1 JP |
5354 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralst), ralst_pl); |
5355 | if (err) | |
5356 | return err; | |
5357 | ||
b5d90e6d | 5358 | for (i = 0; i < MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_VRS); i++) { |
9011b677 | 5359 | struct mlxsw_sp_vr *vr = &mlxsw_sp->router->vrs[i]; |
b5d90e6d IS |
5360 | char raltb_pl[MLXSW_REG_RALTB_LEN]; |
5361 | char ralue_pl[MLXSW_REG_RALUE_LEN]; | |
b45f64d1 | 5362 | |
bc65a8a4 | 5363 | mlxsw_reg_raltb_pack(raltb_pl, vr->id, proto, tree_id); |
b5d90e6d IS |
5364 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(raltb), |
5365 | raltb_pl); | |
5366 | if (err) | |
5367 | return err; | |
5368 | ||
bc65a8a4 IS |
5369 | mlxsw_reg_ralue_pack(ralue_pl, proto, |
5370 | MLXSW_REG_RALUE_OP_WRITE_WRITE, vr->id, 0); | |
b5d90e6d IS |
5371 | mlxsw_reg_ralue_act_ip2me_pack(ralue_pl); |
5372 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralue), | |
5373 | ralue_pl); | |
5374 | if (err) | |
5375 | return err; | |
5376 | } | |
5377 | ||
5378 | return 0; | |
b45f64d1 JP |
5379 | } |
5380 | ||
d42b0965 YG |
5381 | static int mlxsw_sp_router_fibmr_add(struct mlxsw_sp *mlxsw_sp, |
5382 | struct mfc_entry_notifier_info *men_info, | |
5383 | bool replace) | |
5384 | { | |
5385 | struct mlxsw_sp_vr *vr; | |
5386 | ||
5387 | if (mlxsw_sp->router->aborted) | |
5388 | return 0; | |
5389 | ||
f8fa9b4e | 5390 | vr = mlxsw_sp_vr_get(mlxsw_sp, men_info->tb_id, NULL); |
d42b0965 YG |
5391 | if (IS_ERR(vr)) |
5392 | return PTR_ERR(vr); | |
5393 | ||
5394 | return mlxsw_sp_mr_route4_add(vr->mr4_table, men_info->mfc, replace); | |
5395 | } | |
5396 | ||
5397 | static void mlxsw_sp_router_fibmr_del(struct mlxsw_sp *mlxsw_sp, | |
5398 | struct mfc_entry_notifier_info *men_info) | |
5399 | { | |
5400 | struct mlxsw_sp_vr *vr; | |
5401 | ||
5402 | if (mlxsw_sp->router->aborted) | |
5403 | return; | |
5404 | ||
5405 | vr = mlxsw_sp_vr_find(mlxsw_sp, men_info->tb_id); | |
5406 | if (WARN_ON(!vr)) | |
5407 | return; | |
5408 | ||
5409 | mlxsw_sp_mr_route4_del(vr->mr4_table, men_info->mfc); | |
2b52ce02 | 5410 | mlxsw_sp_vr_put(mlxsw_sp, vr); |
d42b0965 YG |
5411 | } |
5412 | ||
5413 | static int | |
5414 | mlxsw_sp_router_fibmr_vif_add(struct mlxsw_sp *mlxsw_sp, | |
5415 | struct vif_entry_notifier_info *ven_info) | |
5416 | { | |
5417 | struct mlxsw_sp_rif *rif; | |
5418 | struct mlxsw_sp_vr *vr; | |
5419 | ||
5420 | if (mlxsw_sp->router->aborted) | |
5421 | return 0; | |
5422 | ||
f8fa9b4e | 5423 | vr = mlxsw_sp_vr_get(mlxsw_sp, ven_info->tb_id, NULL); |
d42b0965 YG |
5424 | if (IS_ERR(vr)) |
5425 | return PTR_ERR(vr); | |
5426 | ||
5427 | rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, ven_info->dev); | |
5428 | return mlxsw_sp_mr_vif_add(vr->mr4_table, ven_info->dev, | |
5429 | ven_info->vif_index, | |
5430 | ven_info->vif_flags, rif); | |
5431 | } | |
5432 | ||
5433 | static void | |
5434 | mlxsw_sp_router_fibmr_vif_del(struct mlxsw_sp *mlxsw_sp, | |
5435 | struct vif_entry_notifier_info *ven_info) | |
5436 | { | |
5437 | struct mlxsw_sp_vr *vr; | |
5438 | ||
5439 | if (mlxsw_sp->router->aborted) | |
5440 | return; | |
5441 | ||
5442 | vr = mlxsw_sp_vr_find(mlxsw_sp, ven_info->tb_id); | |
5443 | if (WARN_ON(!vr)) | |
5444 | return; | |
5445 | ||
5446 | mlxsw_sp_mr_vif_del(vr->mr4_table, ven_info->vif_index); | |
2b52ce02 | 5447 | mlxsw_sp_vr_put(mlxsw_sp, vr); |
d42b0965 YG |
5448 | } |
5449 | ||
bc65a8a4 IS |
5450 | static int mlxsw_sp_router_set_abort_trap(struct mlxsw_sp *mlxsw_sp) |
5451 | { | |
5452 | enum mlxsw_reg_ralxx_protocol proto = MLXSW_REG_RALXX_PROTOCOL_IPV4; | |
5453 | int err; | |
5454 | ||
5455 | err = __mlxsw_sp_router_set_abort_trap(mlxsw_sp, proto, | |
5456 | MLXSW_SP_LPM_TREE_MIN); | |
5457 | if (err) | |
5458 | return err; | |
5459 | ||
d42b0965 YG |
5460 | /* The multicast router code does not need an abort trap as by default, |
5461 | * packets that don't match any routes are trapped to the CPU. | |
5462 | */ | |
5463 | ||
bc65a8a4 IS |
5464 | proto = MLXSW_REG_RALXX_PROTOCOL_IPV6; |
5465 | return __mlxsw_sp_router_set_abort_trap(mlxsw_sp, proto, | |
5466 | MLXSW_SP_LPM_TREE_MIN + 1); | |
5467 | } | |
5468 | ||
9aecce1c IS |
5469 | static void mlxsw_sp_fib4_node_flush(struct mlxsw_sp *mlxsw_sp, |
5470 | struct mlxsw_sp_fib_node *fib_node) | |
5471 | { | |
4f1c7f1f | 5472 | struct mlxsw_sp_fib4_entry *fib4_entry, *tmp; |
9aecce1c | 5473 | |
4f1c7f1f IS |
5474 | list_for_each_entry_safe(fib4_entry, tmp, &fib_node->entry_list, |
5475 | common.list) { | |
5476 | bool do_break = &tmp->common.list == &fib_node->entry_list; | |
9aecce1c | 5477 | |
4f1c7f1f IS |
5478 | mlxsw_sp_fib4_node_entry_unlink(mlxsw_sp, fib4_entry); |
5479 | mlxsw_sp_fib4_entry_destroy(mlxsw_sp, fib4_entry); | |
731ea1ca | 5480 | mlxsw_sp_fib_node_put(mlxsw_sp, fib_node); |
9aecce1c IS |
5481 | /* Break when entry list is empty and node was freed. |
5482 | * Otherwise, we'll access freed memory in the next | |
5483 | * iteration. | |
5484 | */ | |
5485 | if (do_break) | |
5486 | break; | |
5487 | } | |
5488 | } | |
5489 | ||
428b851f IS |
5490 | static void mlxsw_sp_fib6_node_flush(struct mlxsw_sp *mlxsw_sp, |
5491 | struct mlxsw_sp_fib_node *fib_node) | |
5492 | { | |
5493 | struct mlxsw_sp_fib6_entry *fib6_entry, *tmp; | |
5494 | ||
5495 | list_for_each_entry_safe(fib6_entry, tmp, &fib_node->entry_list, | |
5496 | common.list) { | |
5497 | bool do_break = &tmp->common.list == &fib_node->entry_list; | |
5498 | ||
5499 | mlxsw_sp_fib6_node_entry_unlink(mlxsw_sp, fib6_entry); | |
5500 | mlxsw_sp_fib6_entry_destroy(mlxsw_sp, fib6_entry); | |
5501 | mlxsw_sp_fib_node_put(mlxsw_sp, fib_node); | |
5502 | if (do_break) | |
5503 | break; | |
5504 | } | |
5505 | } | |
5506 | ||
9aecce1c IS |
5507 | static void mlxsw_sp_fib_node_flush(struct mlxsw_sp *mlxsw_sp, |
5508 | struct mlxsw_sp_fib_node *fib_node) | |
5509 | { | |
76610ebb | 5510 | switch (fib_node->fib->proto) { |
9aecce1c IS |
5511 | case MLXSW_SP_L3_PROTO_IPV4: |
5512 | mlxsw_sp_fib4_node_flush(mlxsw_sp, fib_node); | |
5513 | break; | |
5514 | case MLXSW_SP_L3_PROTO_IPV6: | |
428b851f | 5515 | mlxsw_sp_fib6_node_flush(mlxsw_sp, fib_node); |
9aecce1c IS |
5516 | break; |
5517 | } | |
5518 | } | |
5519 | ||
76610ebb IS |
5520 | static void mlxsw_sp_vr_fib_flush(struct mlxsw_sp *mlxsw_sp, |
5521 | struct mlxsw_sp_vr *vr, | |
5522 | enum mlxsw_sp_l3proto proto) | |
b45f64d1 | 5523 | { |
76610ebb | 5524 | struct mlxsw_sp_fib *fib = mlxsw_sp_vr_fib(vr, proto); |
9aecce1c | 5525 | struct mlxsw_sp_fib_node *fib_node, *tmp; |
76610ebb IS |
5526 | |
5527 | list_for_each_entry_safe(fib_node, tmp, &fib->node_list, list) { | |
5528 | bool do_break = &tmp->list == &fib->node_list; | |
5529 | ||
5530 | mlxsw_sp_fib_node_flush(mlxsw_sp, fib_node); | |
5531 | if (do_break) | |
5532 | break; | |
5533 | } | |
5534 | } | |
5535 | ||
5536 | static void mlxsw_sp_router_fib_flush(struct mlxsw_sp *mlxsw_sp) | |
5537 | { | |
b45f64d1 | 5538 | int i; |
b45f64d1 | 5539 | |
c1a38311 | 5540 | for (i = 0; i < MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_VRS); i++) { |
9011b677 | 5541 | struct mlxsw_sp_vr *vr = &mlxsw_sp->router->vrs[i]; |
ac571de9 | 5542 | |
76610ebb | 5543 | if (!mlxsw_sp_vr_is_used(vr)) |
b45f64d1 | 5544 | continue; |
d42b0965 YG |
5545 | |
5546 | mlxsw_sp_mr_table_flush(vr->mr4_table); | |
76610ebb | 5547 | mlxsw_sp_vr_fib_flush(mlxsw_sp, vr, MLXSW_SP_L3_PROTO_IPV4); |
a3d9bc50 IS |
5548 | |
5549 | /* If virtual router was only used for IPv4, then it's no | |
5550 | * longer used. | |
5551 | */ | |
5552 | if (!mlxsw_sp_vr_is_used(vr)) | |
5553 | continue; | |
5554 | mlxsw_sp_vr_fib_flush(mlxsw_sp, vr, MLXSW_SP_L3_PROTO_IPV6); | |
b45f64d1 | 5555 | } |
ac571de9 IS |
5556 | } |
5557 | ||
bc65a8a4 | 5558 | static void mlxsw_sp_router_fib_abort(struct mlxsw_sp *mlxsw_sp) |
ac571de9 IS |
5559 | { |
5560 | int err; | |
5561 | ||
9011b677 | 5562 | if (mlxsw_sp->router->aborted) |
d331d303 IS |
5563 | return; |
5564 | dev_warn(mlxsw_sp->bus_info->dev, "FIB abort triggered. Note that FIB entries are no longer being offloaded to this device.\n"); | |
ac571de9 | 5565 | mlxsw_sp_router_fib_flush(mlxsw_sp); |
9011b677 | 5566 | mlxsw_sp->router->aborted = true; |
b45f64d1 JP |
5567 | err = mlxsw_sp_router_set_abort_trap(mlxsw_sp); |
5568 | if (err) | |
5569 | dev_warn(mlxsw_sp->bus_info->dev, "Failed to set abort trap.\n"); | |
5570 | } | |
5571 | ||
3057224e | 5572 | struct mlxsw_sp_fib_event_work { |
a0e4761d | 5573 | struct work_struct work; |
ad178c8e | 5574 | union { |
428b851f | 5575 | struct fib6_entry_notifier_info fen6_info; |
ad178c8e | 5576 | struct fib_entry_notifier_info fen_info; |
5d7bfd14 | 5577 | struct fib_rule_notifier_info fr_info; |
ad178c8e | 5578 | struct fib_nh_notifier_info fnh_info; |
d42b0965 YG |
5579 | struct mfc_entry_notifier_info men_info; |
5580 | struct vif_entry_notifier_info ven_info; | |
ad178c8e | 5581 | }; |
3057224e IS |
5582 | struct mlxsw_sp *mlxsw_sp; |
5583 | unsigned long event; | |
5584 | }; | |
5585 | ||
66a5763a | 5586 | static void mlxsw_sp_router_fib4_event_work(struct work_struct *work) |
b45f64d1 | 5587 | { |
3057224e | 5588 | struct mlxsw_sp_fib_event_work *fib_work = |
a0e4761d | 5589 | container_of(work, struct mlxsw_sp_fib_event_work, work); |
3057224e | 5590 | struct mlxsw_sp *mlxsw_sp = fib_work->mlxsw_sp; |
599cf8f9 | 5591 | bool replace, append; |
b45f64d1 JP |
5592 | int err; |
5593 | ||
3057224e IS |
5594 | /* Protect internal structures from changes */ |
5595 | rtnl_lock(); | |
803335ac PM |
5596 | mlxsw_sp_span_respin(mlxsw_sp); |
5597 | ||
3057224e | 5598 | switch (fib_work->event) { |
599cf8f9 | 5599 | case FIB_EVENT_ENTRY_REPLACE: /* fall through */ |
4283bce5 | 5600 | case FIB_EVENT_ENTRY_APPEND: /* fall through */ |
b45f64d1 | 5601 | case FIB_EVENT_ENTRY_ADD: |
599cf8f9 | 5602 | replace = fib_work->event == FIB_EVENT_ENTRY_REPLACE; |
4283bce5 IS |
5603 | append = fib_work->event == FIB_EVENT_ENTRY_APPEND; |
5604 | err = mlxsw_sp_router_fib4_add(mlxsw_sp, &fib_work->fen_info, | |
599cf8f9 | 5605 | replace, append); |
b45f64d1 | 5606 | if (err) |
bc65a8a4 | 5607 | mlxsw_sp_router_fib_abort(mlxsw_sp); |
3057224e | 5608 | fib_info_put(fib_work->fen_info.fi); |
b45f64d1 JP |
5609 | break; |
5610 | case FIB_EVENT_ENTRY_DEL: | |
3057224e IS |
5611 | mlxsw_sp_router_fib4_del(mlxsw_sp, &fib_work->fen_info); |
5612 | fib_info_put(fib_work->fen_info.fi); | |
b45f64d1 | 5613 | break; |
1f279233 DA |
5614 | case FIB_EVENT_RULE_ADD: |
5615 | /* if we get here, a rule was added that we do not support. | |
5616 | * just do the fib_abort | |
5617 | */ | |
5618 | mlxsw_sp_router_fib_abort(mlxsw_sp); | |
b45f64d1 | 5619 | break; |
ad178c8e IS |
5620 | case FIB_EVENT_NH_ADD: /* fall through */ |
5621 | case FIB_EVENT_NH_DEL: | |
0e6ea2a4 IS |
5622 | mlxsw_sp_nexthop4_event(mlxsw_sp, fib_work->event, |
5623 | fib_work->fnh_info.fib_nh); | |
ad178c8e IS |
5624 | fib_info_put(fib_work->fnh_info.fib_nh->nh_parent); |
5625 | break; | |
b45f64d1 | 5626 | } |
3057224e IS |
5627 | rtnl_unlock(); |
5628 | kfree(fib_work); | |
5629 | } | |
5630 | ||
66a5763a IS |
5631 | static void mlxsw_sp_router_fib6_event_work(struct work_struct *work) |
5632 | { | |
583419fd IS |
5633 | struct mlxsw_sp_fib_event_work *fib_work = |
5634 | container_of(work, struct mlxsw_sp_fib_event_work, work); | |
5635 | struct mlxsw_sp *mlxsw_sp = fib_work->mlxsw_sp; | |
0a7fd1ac | 5636 | bool replace; |
428b851f | 5637 | int err; |
583419fd IS |
5638 | |
5639 | rtnl_lock(); | |
803335ac PM |
5640 | mlxsw_sp_span_respin(mlxsw_sp); |
5641 | ||
583419fd | 5642 | switch (fib_work->event) { |
0a7fd1ac | 5643 | case FIB_EVENT_ENTRY_REPLACE: /* fall through */ |
428b851f | 5644 | case FIB_EVENT_ENTRY_ADD: |
0a7fd1ac | 5645 | replace = fib_work->event == FIB_EVENT_ENTRY_REPLACE; |
428b851f | 5646 | err = mlxsw_sp_router_fib6_add(mlxsw_sp, |
0a7fd1ac | 5647 | fib_work->fen6_info.rt, replace); |
428b851f IS |
5648 | if (err) |
5649 | mlxsw_sp_router_fib_abort(mlxsw_sp); | |
5650 | mlxsw_sp_rt6_release(fib_work->fen6_info.rt); | |
5651 | break; | |
5652 | case FIB_EVENT_ENTRY_DEL: | |
5653 | mlxsw_sp_router_fib6_del(mlxsw_sp, fib_work->fen6_info.rt); | |
5654 | mlxsw_sp_rt6_release(fib_work->fen6_info.rt); | |
5655 | break; | |
1f279233 DA |
5656 | case FIB_EVENT_RULE_ADD: |
5657 | /* if we get here, a rule was added that we do not support. | |
5658 | * just do the fib_abort | |
5659 | */ | |
5660 | mlxsw_sp_router_fib_abort(mlxsw_sp); | |
583419fd IS |
5661 | break; |
5662 | } | |
5663 | rtnl_unlock(); | |
5664 | kfree(fib_work); | |
66a5763a IS |
5665 | } |
5666 | ||
d42b0965 YG |
5667 | static void mlxsw_sp_router_fibmr_event_work(struct work_struct *work) |
5668 | { | |
5669 | struct mlxsw_sp_fib_event_work *fib_work = | |
5670 | container_of(work, struct mlxsw_sp_fib_event_work, work); | |
5671 | struct mlxsw_sp *mlxsw_sp = fib_work->mlxsw_sp; | |
d42b0965 YG |
5672 | bool replace; |
5673 | int err; | |
5674 | ||
5675 | rtnl_lock(); | |
5676 | switch (fib_work->event) { | |
5677 | case FIB_EVENT_ENTRY_REPLACE: /* fall through */ | |
5678 | case FIB_EVENT_ENTRY_ADD: | |
5679 | replace = fib_work->event == FIB_EVENT_ENTRY_REPLACE; | |
5680 | ||
5681 | err = mlxsw_sp_router_fibmr_add(mlxsw_sp, &fib_work->men_info, | |
5682 | replace); | |
5683 | if (err) | |
5684 | mlxsw_sp_router_fib_abort(mlxsw_sp); | |
5685 | ipmr_cache_put(fib_work->men_info.mfc); | |
5686 | break; | |
5687 | case FIB_EVENT_ENTRY_DEL: | |
5688 | mlxsw_sp_router_fibmr_del(mlxsw_sp, &fib_work->men_info); | |
5689 | ipmr_cache_put(fib_work->men_info.mfc); | |
5690 | break; | |
5691 | case FIB_EVENT_VIF_ADD: | |
5692 | err = mlxsw_sp_router_fibmr_vif_add(mlxsw_sp, | |
5693 | &fib_work->ven_info); | |
5694 | if (err) | |
5695 | mlxsw_sp_router_fib_abort(mlxsw_sp); | |
5696 | dev_put(fib_work->ven_info.dev); | |
5697 | break; | |
5698 | case FIB_EVENT_VIF_DEL: | |
5699 | mlxsw_sp_router_fibmr_vif_del(mlxsw_sp, | |
5700 | &fib_work->ven_info); | |
5701 | dev_put(fib_work->ven_info.dev); | |
5702 | break; | |
1f279233 DA |
5703 | case FIB_EVENT_RULE_ADD: |
5704 | /* if we get here, a rule was added that we do not support. | |
5705 | * just do the fib_abort | |
5706 | */ | |
5707 | mlxsw_sp_router_fib_abort(mlxsw_sp); | |
d42b0965 YG |
5708 | break; |
5709 | } | |
5710 | rtnl_unlock(); | |
5711 | kfree(fib_work); | |
5712 | } | |
5713 | ||
66a5763a IS |
5714 | static void mlxsw_sp_router_fib4_event(struct mlxsw_sp_fib_event_work *fib_work, |
5715 | struct fib_notifier_info *info) | |
5716 | { | |
3c75f9b1 | 5717 | struct fib_entry_notifier_info *fen_info; |
3c75f9b1 DA |
5718 | struct fib_nh_notifier_info *fnh_info; |
5719 | ||
66a5763a IS |
5720 | switch (fib_work->event) { |
5721 | case FIB_EVENT_ENTRY_REPLACE: /* fall through */ | |
5722 | case FIB_EVENT_ENTRY_APPEND: /* fall through */ | |
5723 | case FIB_EVENT_ENTRY_ADD: /* fall through */ | |
5724 | case FIB_EVENT_ENTRY_DEL: | |
3c75f9b1 DA |
5725 | fen_info = container_of(info, struct fib_entry_notifier_info, |
5726 | info); | |
5727 | fib_work->fen_info = *fen_info; | |
5728 | /* Take reference on fib_info to prevent it from being | |
66a5763a IS |
5729 | * freed while work is queued. Release it afterwards. |
5730 | */ | |
5731 | fib_info_hold(fib_work->fen_info.fi); | |
5732 | break; | |
66a5763a IS |
5733 | case FIB_EVENT_NH_ADD: /* fall through */ |
5734 | case FIB_EVENT_NH_DEL: | |
3c75f9b1 DA |
5735 | fnh_info = container_of(info, struct fib_nh_notifier_info, |
5736 | info); | |
5737 | fib_work->fnh_info = *fnh_info; | |
66a5763a IS |
5738 | fib_info_hold(fib_work->fnh_info.fib_nh->nh_parent); |
5739 | break; | |
5740 | } | |
5741 | } | |
5742 | ||
5743 | static void mlxsw_sp_router_fib6_event(struct mlxsw_sp_fib_event_work *fib_work, | |
5744 | struct fib_notifier_info *info) | |
5745 | { | |
3c75f9b1 | 5746 | struct fib6_entry_notifier_info *fen6_info; |
3c75f9b1 | 5747 | |
583419fd | 5748 | switch (fib_work->event) { |
0a7fd1ac | 5749 | case FIB_EVENT_ENTRY_REPLACE: /* fall through */ |
428b851f IS |
5750 | case FIB_EVENT_ENTRY_ADD: /* fall through */ |
5751 | case FIB_EVENT_ENTRY_DEL: | |
3c75f9b1 DA |
5752 | fen6_info = container_of(info, struct fib6_entry_notifier_info, |
5753 | info); | |
5754 | fib_work->fen6_info = *fen6_info; | |
428b851f IS |
5755 | rt6_hold(fib_work->fen6_info.rt); |
5756 | break; | |
583419fd | 5757 | } |
66a5763a IS |
5758 | } |
5759 | ||
d42b0965 YG |
5760 | static void |
5761 | mlxsw_sp_router_fibmr_event(struct mlxsw_sp_fib_event_work *fib_work, | |
5762 | struct fib_notifier_info *info) | |
5763 | { | |
5764 | switch (fib_work->event) { | |
5765 | case FIB_EVENT_ENTRY_REPLACE: /* fall through */ | |
5766 | case FIB_EVENT_ENTRY_ADD: /* fall through */ | |
5767 | case FIB_EVENT_ENTRY_DEL: | |
5768 | memcpy(&fib_work->men_info, info, sizeof(fib_work->men_info)); | |
5769 | ipmr_cache_hold(fib_work->men_info.mfc); | |
5770 | break; | |
5771 | case FIB_EVENT_VIF_ADD: /* fall through */ | |
5772 | case FIB_EVENT_VIF_DEL: | |
5773 | memcpy(&fib_work->ven_info, info, sizeof(fib_work->ven_info)); | |
5774 | dev_hold(fib_work->ven_info.dev); | |
5775 | break; | |
1f279233 DA |
5776 | } |
5777 | } | |
5778 | ||
5779 | static int mlxsw_sp_router_fib_rule_event(unsigned long event, | |
5780 | struct fib_notifier_info *info, | |
5781 | struct mlxsw_sp *mlxsw_sp) | |
5782 | { | |
5783 | struct netlink_ext_ack *extack = info->extack; | |
5784 | struct fib_rule_notifier_info *fr_info; | |
5785 | struct fib_rule *rule; | |
5786 | int err = 0; | |
5787 | ||
5788 | /* nothing to do at the moment */ | |
5789 | if (event == FIB_EVENT_RULE_DEL) | |
5790 | return 0; | |
5791 | ||
5792 | if (mlxsw_sp->router->aborted) | |
5793 | return 0; | |
5794 | ||
5795 | fr_info = container_of(info, struct fib_rule_notifier_info, info); | |
5796 | rule = fr_info->rule; | |
5797 | ||
5798 | switch (info->family) { | |
5799 | case AF_INET: | |
5800 | if (!fib4_rule_default(rule) && !rule->l3mdev) | |
5801 | err = -1; | |
5802 | break; | |
5803 | case AF_INET6: | |
5804 | if (!fib6_rule_default(rule) && !rule->l3mdev) | |
5805 | err = -1; | |
5806 | break; | |
5807 | case RTNL_FAMILY_IPMR: | |
5808 | if (!ipmr_rule_default(rule) && !rule->l3mdev) | |
5809 | err = -1; | |
d42b0965 YG |
5810 | break; |
5811 | } | |
1f279233 DA |
5812 | |
5813 | if (err < 0) | |
6c677750 | 5814 | NL_SET_ERR_MSG_MOD(extack, "FIB rules not supported. Aborting offload"); |
1f279233 DA |
5815 | |
5816 | return err; | |
d42b0965 YG |
5817 | } |
5818 | ||
3057224e IS |
5819 | /* Called with rcu_read_lock() */ |
5820 | static int mlxsw_sp_router_fib_event(struct notifier_block *nb, | |
5821 | unsigned long event, void *ptr) | |
5822 | { | |
3057224e IS |
5823 | struct mlxsw_sp_fib_event_work *fib_work; |
5824 | struct fib_notifier_info *info = ptr; | |
7e39d115 | 5825 | struct mlxsw_sp_router *router; |
1f279233 | 5826 | int err; |
3057224e | 5827 | |
8e29f979 | 5828 | if (!net_eq(info->net, &init_net) || |
664375e9 YG |
5829 | (info->family != AF_INET && info->family != AF_INET6 && |
5830 | info->family != RTNL_FAMILY_IPMR)) | |
3057224e IS |
5831 | return NOTIFY_DONE; |
5832 | ||
1f279233 DA |
5833 | router = container_of(nb, struct mlxsw_sp_router, fib_nb); |
5834 | ||
5835 | switch (event) { | |
5836 | case FIB_EVENT_RULE_ADD: /* fall through */ | |
5837 | case FIB_EVENT_RULE_DEL: | |
5838 | err = mlxsw_sp_router_fib_rule_event(event, info, | |
5839 | router->mlxsw_sp); | |
5840 | if (!err) | |
5841 | return NOTIFY_DONE; | |
5842 | } | |
5843 | ||
3057224e IS |
5844 | fib_work = kzalloc(sizeof(*fib_work), GFP_ATOMIC); |
5845 | if (WARN_ON(!fib_work)) | |
5846 | return NOTIFY_BAD; | |
5847 | ||
7e39d115 | 5848 | fib_work->mlxsw_sp = router->mlxsw_sp; |
3057224e IS |
5849 | fib_work->event = event; |
5850 | ||
66a5763a IS |
5851 | switch (info->family) { |
5852 | case AF_INET: | |
5853 | INIT_WORK(&fib_work->work, mlxsw_sp_router_fib4_event_work); | |
5854 | mlxsw_sp_router_fib4_event(fib_work, info); | |
3057224e | 5855 | break; |
66a5763a IS |
5856 | case AF_INET6: |
5857 | INIT_WORK(&fib_work->work, mlxsw_sp_router_fib6_event_work); | |
5858 | mlxsw_sp_router_fib6_event(fib_work, info); | |
ad178c8e | 5859 | break; |
d42b0965 YG |
5860 | case RTNL_FAMILY_IPMR: |
5861 | INIT_WORK(&fib_work->work, mlxsw_sp_router_fibmr_event_work); | |
5862 | mlxsw_sp_router_fibmr_event(fib_work, info); | |
5863 | break; | |
3057224e IS |
5864 | } |
5865 | ||
a0e4761d | 5866 | mlxsw_core_schedule_work(&fib_work->work); |
3057224e | 5867 | |
b45f64d1 JP |
5868 | return NOTIFY_DONE; |
5869 | } | |
5870 | ||
4724ba56 IS |
5871 | static struct mlxsw_sp_rif * |
5872 | mlxsw_sp_rif_find_by_dev(const struct mlxsw_sp *mlxsw_sp, | |
5873 | const struct net_device *dev) | |
5874 | { | |
5875 | int i; | |
5876 | ||
5877 | for (i = 0; i < MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_RIFS); i++) | |
5f9efffb IS |
5878 | if (mlxsw_sp->router->rifs[i] && |
5879 | mlxsw_sp->router->rifs[i]->dev == dev) | |
5880 | return mlxsw_sp->router->rifs[i]; | |
4724ba56 IS |
5881 | |
5882 | return NULL; | |
5883 | } | |
5884 | ||
5885 | static int mlxsw_sp_router_rif_disable(struct mlxsw_sp *mlxsw_sp, u16 rif) | |
5886 | { | |
5887 | char ritr_pl[MLXSW_REG_RITR_LEN]; | |
5888 | int err; | |
5889 | ||
5890 | mlxsw_reg_ritr_rif_pack(ritr_pl, rif); | |
5891 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl); | |
5892 | if (WARN_ON_ONCE(err)) | |
5893 | return err; | |
5894 | ||
5895 | mlxsw_reg_ritr_enable_set(ritr_pl, false); | |
5896 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl); | |
5897 | } | |
5898 | ||
5899 | static void mlxsw_sp_router_rif_gone_sync(struct mlxsw_sp *mlxsw_sp, | |
bf95233e | 5900 | struct mlxsw_sp_rif *rif) |
4724ba56 | 5901 | { |
bf95233e AS |
5902 | mlxsw_sp_router_rif_disable(mlxsw_sp, rif->rif_index); |
5903 | mlxsw_sp_nexthop_rif_gone_sync(mlxsw_sp, rif); | |
5904 | mlxsw_sp_neigh_rif_gone_sync(mlxsw_sp, rif); | |
4724ba56 IS |
5905 | } |
5906 | ||
5ea1237f AS |
5907 | static bool |
5908 | mlxsw_sp_rif_should_config(struct mlxsw_sp_rif *rif, struct net_device *dev, | |
5909 | unsigned long event) | |
4724ba56 | 5910 | { |
5ea1237f AS |
5911 | struct inet6_dev *inet6_dev; |
5912 | bool addr_list_empty = true; | |
5913 | struct in_device *idev; | |
5914 | ||
4724ba56 IS |
5915 | switch (event) { |
5916 | case NETDEV_UP: | |
f1b1f273 | 5917 | return rif == NULL; |
4724ba56 | 5918 | case NETDEV_DOWN: |
5ea1237f AS |
5919 | idev = __in_dev_get_rtnl(dev); |
5920 | if (idev && idev->ifa_list) | |
5921 | addr_list_empty = false; | |
5922 | ||
5923 | inet6_dev = __in6_dev_get(dev); | |
5924 | if (addr_list_empty && inet6_dev && | |
5925 | !list_empty(&inet6_dev->addr_list)) | |
5926 | addr_list_empty = false; | |
5927 | ||
5928 | if (rif && addr_list_empty && | |
bf95233e | 5929 | !netif_is_l3_slave(rif->dev)) |
4724ba56 IS |
5930 | return true; |
5931 | /* It is possible we already removed the RIF ourselves | |
5932 | * if it was assigned to a netdev that is now a bridge | |
5933 | * or LAG slave. | |
5934 | */ | |
5935 | return false; | |
5936 | } | |
5937 | ||
5938 | return false; | |
5939 | } | |
5940 | ||
e4f3c1c1 IS |
5941 | static enum mlxsw_sp_rif_type |
5942 | mlxsw_sp_dev_rif_type(const struct mlxsw_sp *mlxsw_sp, | |
5943 | const struct net_device *dev) | |
5944 | { | |
5945 | enum mlxsw_sp_fid_type type; | |
5946 | ||
6ddb7426 PM |
5947 | if (mlxsw_sp_netdev_ipip_type(mlxsw_sp, dev, NULL)) |
5948 | return MLXSW_SP_RIF_TYPE_IPIP_LB; | |
5949 | ||
5950 | /* Otherwise RIF type is derived from the type of the underlying FID. */ | |
e4f3c1c1 IS |
5951 | if (is_vlan_dev(dev) && netif_is_bridge_master(vlan_dev_real_dev(dev))) |
5952 | type = MLXSW_SP_FID_TYPE_8021Q; | |
5953 | else if (netif_is_bridge_master(dev) && br_vlan_enabled(dev)) | |
5954 | type = MLXSW_SP_FID_TYPE_8021Q; | |
5955 | else if (netif_is_bridge_master(dev)) | |
5956 | type = MLXSW_SP_FID_TYPE_8021D; | |
5957 | else | |
5958 | type = MLXSW_SP_FID_TYPE_RFID; | |
5959 | ||
5960 | return mlxsw_sp_fid_type_rif_type(mlxsw_sp, type); | |
5961 | } | |
5962 | ||
de5ed99e | 5963 | static int mlxsw_sp_rif_index_alloc(struct mlxsw_sp *mlxsw_sp, u16 *p_rif_index) |
4724ba56 IS |
5964 | { |
5965 | int i; | |
5966 | ||
de5ed99e IS |
5967 | for (i = 0; i < MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_RIFS); i++) { |
5968 | if (!mlxsw_sp->router->rifs[i]) { | |
5969 | *p_rif_index = i; | |
5970 | return 0; | |
5971 | } | |
5972 | } | |
4724ba56 | 5973 | |
de5ed99e | 5974 | return -ENOBUFS; |
4724ba56 IS |
5975 | } |
5976 | ||
e4f3c1c1 IS |
5977 | static struct mlxsw_sp_rif *mlxsw_sp_rif_alloc(size_t rif_size, u16 rif_index, |
5978 | u16 vr_id, | |
5979 | struct net_device *l3_dev) | |
4724ba56 | 5980 | { |
bf95233e | 5981 | struct mlxsw_sp_rif *rif; |
4724ba56 | 5982 | |
e4f3c1c1 | 5983 | rif = kzalloc(rif_size, GFP_KERNEL); |
bf95233e | 5984 | if (!rif) |
4724ba56 IS |
5985 | return NULL; |
5986 | ||
bf95233e AS |
5987 | INIT_LIST_HEAD(&rif->nexthop_list); |
5988 | INIT_LIST_HEAD(&rif->neigh_list); | |
5989 | ether_addr_copy(rif->addr, l3_dev->dev_addr); | |
5990 | rif->mtu = l3_dev->mtu; | |
5991 | rif->vr_id = vr_id; | |
5992 | rif->dev = l3_dev; | |
5993 | rif->rif_index = rif_index; | |
4724ba56 | 5994 | |
bf95233e | 5995 | return rif; |
4724ba56 IS |
5996 | } |
5997 | ||
5f9efffb IS |
5998 | struct mlxsw_sp_rif *mlxsw_sp_rif_by_index(const struct mlxsw_sp *mlxsw_sp, |
5999 | u16 rif_index) | |
6000 | { | |
6001 | return mlxsw_sp->router->rifs[rif_index]; | |
6002 | } | |
6003 | ||
fd1b9d41 AS |
6004 | u16 mlxsw_sp_rif_index(const struct mlxsw_sp_rif *rif) |
6005 | { | |
6006 | return rif->rif_index; | |
6007 | } | |
6008 | ||
92107cfb PM |
6009 | u16 mlxsw_sp_ipip_lb_rif_index(const struct mlxsw_sp_rif_ipip_lb *lb_rif) |
6010 | { | |
6011 | return lb_rif->common.rif_index; | |
6012 | } | |
6013 | ||
6014 | u16 mlxsw_sp_ipip_lb_ul_vr_id(const struct mlxsw_sp_rif_ipip_lb *lb_rif) | |
6015 | { | |
6016 | return lb_rif->ul_vr_id; | |
6017 | } | |
6018 | ||
fd1b9d41 AS |
6019 | int mlxsw_sp_rif_dev_ifindex(const struct mlxsw_sp_rif *rif) |
6020 | { | |
6021 | return rif->dev->ifindex; | |
6022 | } | |
6023 | ||
91e4d59a YG |
6024 | const struct net_device *mlxsw_sp_rif_dev(const struct mlxsw_sp_rif *rif) |
6025 | { | |
6026 | return rif->dev; | |
6027 | } | |
6028 | ||
4724ba56 | 6029 | static struct mlxsw_sp_rif * |
e4f3c1c1 | 6030 | mlxsw_sp_rif_create(struct mlxsw_sp *mlxsw_sp, |
f8fa9b4e DA |
6031 | const struct mlxsw_sp_rif_params *params, |
6032 | struct netlink_ext_ack *extack) | |
4724ba56 | 6033 | { |
e4f3c1c1 IS |
6034 | u32 tb_id = l3mdev_fib_table(params->dev); |
6035 | const struct mlxsw_sp_rif_ops *ops; | |
010cadf9 | 6036 | struct mlxsw_sp_fid *fid = NULL; |
e4f3c1c1 | 6037 | enum mlxsw_sp_rif_type type; |
bf95233e | 6038 | struct mlxsw_sp_rif *rif; |
a1107487 IS |
6039 | struct mlxsw_sp_vr *vr; |
6040 | u16 rif_index; | |
4724ba56 IS |
6041 | int err; |
6042 | ||
e4f3c1c1 IS |
6043 | type = mlxsw_sp_dev_rif_type(mlxsw_sp, params->dev); |
6044 | ops = mlxsw_sp->router->rif_ops_arr[type]; | |
6045 | ||
f8fa9b4e | 6046 | vr = mlxsw_sp_vr_get(mlxsw_sp, tb_id ? : RT_TABLE_MAIN, extack); |
c9ec53f0 IS |
6047 | if (IS_ERR(vr)) |
6048 | return ERR_CAST(vr); | |
28a04c7b | 6049 | vr->rif_count++; |
c9ec53f0 | 6050 | |
de5ed99e | 6051 | err = mlxsw_sp_rif_index_alloc(mlxsw_sp, &rif_index); |
f8fa9b4e | 6052 | if (err) { |
6c677750 | 6053 | NL_SET_ERR_MSG_MOD(extack, "Exceeded number of supported router interfaces"); |
de5ed99e | 6054 | goto err_rif_index_alloc; |
f8fa9b4e | 6055 | } |
4724ba56 | 6056 | |
e4f3c1c1 | 6057 | rif = mlxsw_sp_rif_alloc(ops->rif_size, rif_index, vr->id, params->dev); |
a13a594d IS |
6058 | if (!rif) { |
6059 | err = -ENOMEM; | |
6060 | goto err_rif_alloc; | |
6061 | } | |
e4f3c1c1 IS |
6062 | rif->mlxsw_sp = mlxsw_sp; |
6063 | rif->ops = ops; | |
a13a594d | 6064 | |
010cadf9 PM |
6065 | if (ops->fid_get) { |
6066 | fid = ops->fid_get(rif); | |
6067 | if (IS_ERR(fid)) { | |
6068 | err = PTR_ERR(fid); | |
6069 | goto err_fid_get; | |
6070 | } | |
6071 | rif->fid = fid; | |
4d93ceeb IS |
6072 | } |
6073 | ||
e4f3c1c1 IS |
6074 | if (ops->setup) |
6075 | ops->setup(rif, params); | |
6076 | ||
6077 | err = ops->configure(rif); | |
4724ba56 | 6078 | if (err) |
e4f3c1c1 | 6079 | goto err_configure; |
4724ba56 | 6080 | |
d42b0965 YG |
6081 | err = mlxsw_sp_mr_rif_add(vr->mr4_table, rif); |
6082 | if (err) | |
6083 | goto err_mr_rif_add; | |
6084 | ||
e4f3c1c1 | 6085 | mlxsw_sp_rif_counters_alloc(rif); |
5f9efffb | 6086 | mlxsw_sp->router->rifs[rif_index] = rif; |
4724ba56 | 6087 | |
bf95233e | 6088 | return rif; |
4724ba56 | 6089 | |
d42b0965 YG |
6090 | err_mr_rif_add: |
6091 | ops->deconfigure(rif); | |
e4f3c1c1 | 6092 | err_configure: |
010cadf9 PM |
6093 | if (fid) |
6094 | mlxsw_sp_fid_put(fid); | |
a1107487 | 6095 | err_fid_get: |
e4f3c1c1 IS |
6096 | kfree(rif); |
6097 | err_rif_alloc: | |
de5ed99e | 6098 | err_rif_index_alloc: |
28a04c7b | 6099 | vr->rif_count--; |
2b52ce02 | 6100 | mlxsw_sp_vr_put(mlxsw_sp, vr); |
4724ba56 IS |
6101 | return ERR_PTR(err); |
6102 | } | |
6103 | ||
e4f3c1c1 | 6104 | void mlxsw_sp_rif_destroy(struct mlxsw_sp_rif *rif) |
4724ba56 | 6105 | { |
e4f3c1c1 IS |
6106 | const struct mlxsw_sp_rif_ops *ops = rif->ops; |
6107 | struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp; | |
a1107487 | 6108 | struct mlxsw_sp_fid *fid = rif->fid; |
e4f3c1c1 | 6109 | struct mlxsw_sp_vr *vr; |
4724ba56 | 6110 | |
bf95233e | 6111 | mlxsw_sp_router_rif_gone_sync(mlxsw_sp, rif); |
e4f3c1c1 | 6112 | vr = &mlxsw_sp->router->vrs[rif->vr_id]; |
e0c0afd8 | 6113 | |
e4f3c1c1 | 6114 | mlxsw_sp->router->rifs[rif->rif_index] = NULL; |
e4f3c1c1 | 6115 | mlxsw_sp_rif_counters_free(rif); |
d42b0965 | 6116 | mlxsw_sp_mr_rif_del(vr->mr4_table, rif); |
e4f3c1c1 | 6117 | ops->deconfigure(rif); |
010cadf9 PM |
6118 | if (fid) |
6119 | /* Loopback RIFs are not associated with a FID. */ | |
6120 | mlxsw_sp_fid_put(fid); | |
e4f3c1c1 | 6121 | kfree(rif); |
28a04c7b | 6122 | vr->rif_count--; |
2b52ce02 | 6123 | mlxsw_sp_vr_put(mlxsw_sp, vr); |
4724ba56 IS |
6124 | } |
6125 | ||
e4f3c1c1 IS |
6126 | static void |
6127 | mlxsw_sp_rif_subport_params_init(struct mlxsw_sp_rif_params *params, | |
6128 | struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan) | |
6129 | { | |
6130 | struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port; | |
6131 | ||
6132 | params->vid = mlxsw_sp_port_vlan->vid; | |
6133 | params->lag = mlxsw_sp_port->lagged; | |
6134 | if (params->lag) | |
6135 | params->lag_id = mlxsw_sp_port->lag_id; | |
6136 | else | |
6137 | params->system_port = mlxsw_sp_port->local_port; | |
6138 | } | |
6139 | ||
7cbecf24 | 6140 | static int |
a1107487 | 6141 | mlxsw_sp_port_vlan_router_join(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan, |
f8fa9b4e DA |
6142 | struct net_device *l3_dev, |
6143 | struct netlink_ext_ack *extack) | |
4724ba56 | 6144 | { |
7cbecf24 | 6145 | struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port; |
1b8f09a0 | 6146 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
7cbecf24 | 6147 | u16 vid = mlxsw_sp_port_vlan->vid; |
bf95233e | 6148 | struct mlxsw_sp_rif *rif; |
a1107487 | 6149 | struct mlxsw_sp_fid *fid; |
03ea01e9 | 6150 | int err; |
4724ba56 | 6151 | |
1b8f09a0 | 6152 | rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, l3_dev); |
bf95233e | 6153 | if (!rif) { |
e4f3c1c1 IS |
6154 | struct mlxsw_sp_rif_params params = { |
6155 | .dev = l3_dev, | |
6156 | }; | |
6157 | ||
6158 | mlxsw_sp_rif_subport_params_init(¶ms, mlxsw_sp_port_vlan); | |
f8fa9b4e | 6159 | rif = mlxsw_sp_rif_create(mlxsw_sp, ¶ms, extack); |
bf95233e AS |
6160 | if (IS_ERR(rif)) |
6161 | return PTR_ERR(rif); | |
4724ba56 IS |
6162 | } |
6163 | ||
a1107487 | 6164 | /* FID was already created, just take a reference */ |
e4f3c1c1 | 6165 | fid = rif->ops->fid_get(rif); |
a1107487 IS |
6166 | err = mlxsw_sp_fid_port_vid_map(fid, mlxsw_sp_port, vid); |
6167 | if (err) | |
6168 | goto err_fid_port_vid_map; | |
6169 | ||
7cbecf24 | 6170 | err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, false); |
03ea01e9 IS |
6171 | if (err) |
6172 | goto err_port_vid_learning_set; | |
6173 | ||
7cbecf24 | 6174 | err = mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, vid, |
03ea01e9 IS |
6175 | BR_STATE_FORWARDING); |
6176 | if (err) | |
6177 | goto err_port_vid_stp_set; | |
6178 | ||
a1107487 | 6179 | mlxsw_sp_port_vlan->fid = fid; |
4724ba56 | 6180 | |
4724ba56 | 6181 | return 0; |
03ea01e9 IS |
6182 | |
6183 | err_port_vid_stp_set: | |
7cbecf24 | 6184 | mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, true); |
03ea01e9 | 6185 | err_port_vid_learning_set: |
a1107487 IS |
6186 | mlxsw_sp_fid_port_vid_unmap(fid, mlxsw_sp_port, vid); |
6187 | err_fid_port_vid_map: | |
6188 | mlxsw_sp_fid_put(fid); | |
03ea01e9 | 6189 | return err; |
4724ba56 IS |
6190 | } |
6191 | ||
a1107487 IS |
6192 | void |
6193 | mlxsw_sp_port_vlan_router_leave(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan) | |
4724ba56 | 6194 | { |
ce95e154 | 6195 | struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port; |
7cbecf24 | 6196 | struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid; |
ce95e154 | 6197 | u16 vid = mlxsw_sp_port_vlan->vid; |
ce95e154 | 6198 | |
a1107487 IS |
6199 | if (WARN_ON(mlxsw_sp_fid_type(fid) != MLXSW_SP_FID_TYPE_RFID)) |
6200 | return; | |
4aafc368 | 6201 | |
a1107487 | 6202 | mlxsw_sp_port_vlan->fid = NULL; |
7cbecf24 IS |
6203 | mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, vid, BR_STATE_BLOCKING); |
6204 | mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, true); | |
a1107487 IS |
6205 | mlxsw_sp_fid_port_vid_unmap(fid, mlxsw_sp_port, vid); |
6206 | /* If router port holds the last reference on the rFID, then the | |
6207 | * associated Sub-port RIF will be destroyed. | |
6208 | */ | |
6209 | mlxsw_sp_fid_put(fid); | |
4724ba56 IS |
6210 | } |
6211 | ||
7cbecf24 IS |
6212 | static int mlxsw_sp_inetaddr_port_vlan_event(struct net_device *l3_dev, |
6213 | struct net_device *port_dev, | |
f8fa9b4e DA |
6214 | unsigned long event, u16 vid, |
6215 | struct netlink_ext_ack *extack) | |
4724ba56 IS |
6216 | { |
6217 | struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(port_dev); | |
ce95e154 | 6218 | struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; |
4724ba56 | 6219 | |
ce95e154 | 6220 | mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid); |
7cbecf24 IS |
6221 | if (WARN_ON(!mlxsw_sp_port_vlan)) |
6222 | return -EINVAL; | |
4724ba56 IS |
6223 | |
6224 | switch (event) { | |
6225 | case NETDEV_UP: | |
a1107487 | 6226 | return mlxsw_sp_port_vlan_router_join(mlxsw_sp_port_vlan, |
f8fa9b4e | 6227 | l3_dev, extack); |
4724ba56 | 6228 | case NETDEV_DOWN: |
a1107487 | 6229 | mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan); |
4724ba56 IS |
6230 | break; |
6231 | } | |
6232 | ||
6233 | return 0; | |
6234 | } | |
6235 | ||
6236 | static int mlxsw_sp_inetaddr_port_event(struct net_device *port_dev, | |
f8fa9b4e DA |
6237 | unsigned long event, |
6238 | struct netlink_ext_ack *extack) | |
4724ba56 | 6239 | { |
2b94e58d JP |
6240 | if (netif_is_bridge_port(port_dev) || |
6241 | netif_is_lag_port(port_dev) || | |
6242 | netif_is_ovs_port(port_dev)) | |
4724ba56 IS |
6243 | return 0; |
6244 | ||
f8fa9b4e DA |
6245 | return mlxsw_sp_inetaddr_port_vlan_event(port_dev, port_dev, event, 1, |
6246 | extack); | |
4724ba56 IS |
6247 | } |
6248 | ||
6249 | static int __mlxsw_sp_inetaddr_lag_event(struct net_device *l3_dev, | |
6250 | struct net_device *lag_dev, | |
f8fa9b4e DA |
6251 | unsigned long event, u16 vid, |
6252 | struct netlink_ext_ack *extack) | |
4724ba56 IS |
6253 | { |
6254 | struct net_device *port_dev; | |
6255 | struct list_head *iter; | |
6256 | int err; | |
6257 | ||
6258 | netdev_for_each_lower_dev(lag_dev, port_dev, iter) { | |
6259 | if (mlxsw_sp_port_dev_check(port_dev)) { | |
7cbecf24 IS |
6260 | err = mlxsw_sp_inetaddr_port_vlan_event(l3_dev, |
6261 | port_dev, | |
f8fa9b4e DA |
6262 | event, vid, |
6263 | extack); | |
4724ba56 IS |
6264 | if (err) |
6265 | return err; | |
6266 | } | |
6267 | } | |
6268 | ||
6269 | return 0; | |
6270 | } | |
6271 | ||
6272 | static int mlxsw_sp_inetaddr_lag_event(struct net_device *lag_dev, | |
f8fa9b4e DA |
6273 | unsigned long event, |
6274 | struct netlink_ext_ack *extack) | |
4724ba56 IS |
6275 | { |
6276 | if (netif_is_bridge_port(lag_dev)) | |
6277 | return 0; | |
6278 | ||
f8fa9b4e DA |
6279 | return __mlxsw_sp_inetaddr_lag_event(lag_dev, lag_dev, event, 1, |
6280 | extack); | |
4724ba56 IS |
6281 | } |
6282 | ||
4724ba56 | 6283 | static int mlxsw_sp_inetaddr_bridge_event(struct net_device *l3_dev, |
f8fa9b4e DA |
6284 | unsigned long event, |
6285 | struct netlink_ext_ack *extack) | |
4724ba56 IS |
6286 | { |
6287 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(l3_dev); | |
e4f3c1c1 IS |
6288 | struct mlxsw_sp_rif_params params = { |
6289 | .dev = l3_dev, | |
6290 | }; | |
a1107487 | 6291 | struct mlxsw_sp_rif *rif; |
4724ba56 IS |
6292 | |
6293 | switch (event) { | |
6294 | case NETDEV_UP: | |
f8fa9b4e | 6295 | rif = mlxsw_sp_rif_create(mlxsw_sp, ¶ms, extack); |
e4f3c1c1 IS |
6296 | if (IS_ERR(rif)) |
6297 | return PTR_ERR(rif); | |
6298 | break; | |
4724ba56 | 6299 | case NETDEV_DOWN: |
a1107487 | 6300 | rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, l3_dev); |
e4f3c1c1 | 6301 | mlxsw_sp_rif_destroy(rif); |
4724ba56 IS |
6302 | break; |
6303 | } | |
6304 | ||
6305 | return 0; | |
6306 | } | |
6307 | ||
6308 | static int mlxsw_sp_inetaddr_vlan_event(struct net_device *vlan_dev, | |
f8fa9b4e DA |
6309 | unsigned long event, |
6310 | struct netlink_ext_ack *extack) | |
4724ba56 IS |
6311 | { |
6312 | struct net_device *real_dev = vlan_dev_real_dev(vlan_dev); | |
4724ba56 IS |
6313 | u16 vid = vlan_dev_vlan_id(vlan_dev); |
6314 | ||
6b27c8ad IS |
6315 | if (netif_is_bridge_port(vlan_dev)) |
6316 | return 0; | |
6317 | ||
4724ba56 | 6318 | if (mlxsw_sp_port_dev_check(real_dev)) |
7cbecf24 | 6319 | return mlxsw_sp_inetaddr_port_vlan_event(vlan_dev, real_dev, |
f8fa9b4e | 6320 | event, vid, extack); |
4724ba56 IS |
6321 | else if (netif_is_lag_master(real_dev)) |
6322 | return __mlxsw_sp_inetaddr_lag_event(vlan_dev, real_dev, event, | |
f8fa9b4e | 6323 | vid, extack); |
c57529e1 | 6324 | else if (netif_is_bridge_master(real_dev) && br_vlan_enabled(real_dev)) |
f8fa9b4e | 6325 | return mlxsw_sp_inetaddr_bridge_event(vlan_dev, event, extack); |
4724ba56 IS |
6326 | |
6327 | return 0; | |
6328 | } | |
6329 | ||
b1e45526 | 6330 | static int __mlxsw_sp_inetaddr_event(struct net_device *dev, |
f8fa9b4e DA |
6331 | unsigned long event, |
6332 | struct netlink_ext_ack *extack) | |
b1e45526 IS |
6333 | { |
6334 | if (mlxsw_sp_port_dev_check(dev)) | |
f8fa9b4e | 6335 | return mlxsw_sp_inetaddr_port_event(dev, event, extack); |
b1e45526 | 6336 | else if (netif_is_lag_master(dev)) |
f8fa9b4e | 6337 | return mlxsw_sp_inetaddr_lag_event(dev, event, extack); |
b1e45526 | 6338 | else if (netif_is_bridge_master(dev)) |
f8fa9b4e | 6339 | return mlxsw_sp_inetaddr_bridge_event(dev, event, extack); |
b1e45526 | 6340 | else if (is_vlan_dev(dev)) |
f8fa9b4e | 6341 | return mlxsw_sp_inetaddr_vlan_event(dev, event, extack); |
b1e45526 IS |
6342 | else |
6343 | return 0; | |
6344 | } | |
6345 | ||
4724ba56 IS |
6346 | int mlxsw_sp_inetaddr_event(struct notifier_block *unused, |
6347 | unsigned long event, void *ptr) | |
6348 | { | |
6349 | struct in_ifaddr *ifa = (struct in_ifaddr *) ptr; | |
6350 | struct net_device *dev = ifa->ifa_dev->dev; | |
6351 | struct mlxsw_sp *mlxsw_sp; | |
bf95233e | 6352 | struct mlxsw_sp_rif *rif; |
4724ba56 IS |
6353 | int err = 0; |
6354 | ||
89d5dd2e DA |
6355 | /* NETDEV_UP event is handled by mlxsw_sp_inetaddr_valid_event */ |
6356 | if (event == NETDEV_UP) | |
6357 | goto out; | |
6358 | ||
6359 | mlxsw_sp = mlxsw_sp_lower_get(dev); | |
6360 | if (!mlxsw_sp) | |
6361 | goto out; | |
6362 | ||
6363 | rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev); | |
6364 | if (!mlxsw_sp_rif_should_config(rif, dev, event)) | |
6365 | goto out; | |
6366 | ||
f8fa9b4e | 6367 | err = __mlxsw_sp_inetaddr_event(dev, event, NULL); |
89d5dd2e DA |
6368 | out: |
6369 | return notifier_from_errno(err); | |
6370 | } | |
6371 | ||
6372 | int mlxsw_sp_inetaddr_valid_event(struct notifier_block *unused, | |
6373 | unsigned long event, void *ptr) | |
6374 | { | |
6375 | struct in_validator_info *ivi = (struct in_validator_info *) ptr; | |
6376 | struct net_device *dev = ivi->ivi_dev->dev; | |
6377 | struct mlxsw_sp *mlxsw_sp; | |
6378 | struct mlxsw_sp_rif *rif; | |
6379 | int err = 0; | |
6380 | ||
4724ba56 IS |
6381 | mlxsw_sp = mlxsw_sp_lower_get(dev); |
6382 | if (!mlxsw_sp) | |
6383 | goto out; | |
6384 | ||
bf95233e | 6385 | rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev); |
5ea1237f | 6386 | if (!mlxsw_sp_rif_should_config(rif, dev, event)) |
4724ba56 IS |
6387 | goto out; |
6388 | ||
f8fa9b4e | 6389 | err = __mlxsw_sp_inetaddr_event(dev, event, ivi->extack); |
4724ba56 IS |
6390 | out: |
6391 | return notifier_from_errno(err); | |
6392 | } | |
6393 | ||
5ea1237f AS |
6394 | struct mlxsw_sp_inet6addr_event_work { |
6395 | struct work_struct work; | |
6396 | struct net_device *dev; | |
6397 | unsigned long event; | |
6398 | }; | |
6399 | ||
6400 | static void mlxsw_sp_inet6addr_event_work(struct work_struct *work) | |
6401 | { | |
6402 | struct mlxsw_sp_inet6addr_event_work *inet6addr_work = | |
6403 | container_of(work, struct mlxsw_sp_inet6addr_event_work, work); | |
6404 | struct net_device *dev = inet6addr_work->dev; | |
6405 | unsigned long event = inet6addr_work->event; | |
6406 | struct mlxsw_sp *mlxsw_sp; | |
6407 | struct mlxsw_sp_rif *rif; | |
6408 | ||
6409 | rtnl_lock(); | |
6410 | mlxsw_sp = mlxsw_sp_lower_get(dev); | |
6411 | if (!mlxsw_sp) | |
6412 | goto out; | |
6413 | ||
6414 | rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev); | |
6415 | if (!mlxsw_sp_rif_should_config(rif, dev, event)) | |
6416 | goto out; | |
6417 | ||
f8fa9b4e | 6418 | __mlxsw_sp_inetaddr_event(dev, event, NULL); |
5ea1237f AS |
6419 | out: |
6420 | rtnl_unlock(); | |
6421 | dev_put(dev); | |
6422 | kfree(inet6addr_work); | |
6423 | } | |
6424 | ||
6425 | /* Called with rcu_read_lock() */ | |
6426 | int mlxsw_sp_inet6addr_event(struct notifier_block *unused, | |
6427 | unsigned long event, void *ptr) | |
6428 | { | |
6429 | struct inet6_ifaddr *if6 = (struct inet6_ifaddr *) ptr; | |
6430 | struct mlxsw_sp_inet6addr_event_work *inet6addr_work; | |
6431 | struct net_device *dev = if6->idev->dev; | |
6432 | ||
89d5dd2e DA |
6433 | /* NETDEV_UP event is handled by mlxsw_sp_inet6addr_valid_event */ |
6434 | if (event == NETDEV_UP) | |
6435 | return NOTIFY_DONE; | |
6436 | ||
5ea1237f AS |
6437 | if (!mlxsw_sp_port_dev_lower_find_rcu(dev)) |
6438 | return NOTIFY_DONE; | |
6439 | ||
6440 | inet6addr_work = kzalloc(sizeof(*inet6addr_work), GFP_ATOMIC); | |
6441 | if (!inet6addr_work) | |
6442 | return NOTIFY_BAD; | |
6443 | ||
6444 | INIT_WORK(&inet6addr_work->work, mlxsw_sp_inet6addr_event_work); | |
6445 | inet6addr_work->dev = dev; | |
6446 | inet6addr_work->event = event; | |
6447 | dev_hold(dev); | |
6448 | mlxsw_core_schedule_work(&inet6addr_work->work); | |
6449 | ||
6450 | return NOTIFY_DONE; | |
6451 | } | |
6452 | ||
89d5dd2e DA |
6453 | int mlxsw_sp_inet6addr_valid_event(struct notifier_block *unused, |
6454 | unsigned long event, void *ptr) | |
6455 | { | |
6456 | struct in6_validator_info *i6vi = (struct in6_validator_info *) ptr; | |
6457 | struct net_device *dev = i6vi->i6vi_dev->dev; | |
6458 | struct mlxsw_sp *mlxsw_sp; | |
6459 | struct mlxsw_sp_rif *rif; | |
6460 | int err = 0; | |
6461 | ||
6462 | mlxsw_sp = mlxsw_sp_lower_get(dev); | |
6463 | if (!mlxsw_sp) | |
6464 | goto out; | |
6465 | ||
6466 | rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev); | |
6467 | if (!mlxsw_sp_rif_should_config(rif, dev, event)) | |
6468 | goto out; | |
6469 | ||
f8fa9b4e | 6470 | err = __mlxsw_sp_inetaddr_event(dev, event, i6vi->extack); |
89d5dd2e DA |
6471 | out: |
6472 | return notifier_from_errno(err); | |
6473 | } | |
6474 | ||
bf95233e | 6475 | static int mlxsw_sp_rif_edit(struct mlxsw_sp *mlxsw_sp, u16 rif_index, |
4724ba56 IS |
6476 | const char *mac, int mtu) |
6477 | { | |
6478 | char ritr_pl[MLXSW_REG_RITR_LEN]; | |
6479 | int err; | |
6480 | ||
bf95233e | 6481 | mlxsw_reg_ritr_rif_pack(ritr_pl, rif_index); |
4724ba56 IS |
6482 | err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl); |
6483 | if (err) | |
6484 | return err; | |
6485 | ||
6486 | mlxsw_reg_ritr_mtu_set(ritr_pl, mtu); | |
6487 | mlxsw_reg_ritr_if_mac_memcpy_to(ritr_pl, mac); | |
6488 | mlxsw_reg_ritr_op_set(ritr_pl, MLXSW_REG_RITR_RIF_CREATE); | |
6489 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl); | |
6490 | } | |
6491 | ||
6492 | int mlxsw_sp_netdevice_router_port_event(struct net_device *dev) | |
6493 | { | |
6494 | struct mlxsw_sp *mlxsw_sp; | |
bf95233e | 6495 | struct mlxsw_sp_rif *rif; |
a1107487 | 6496 | u16 fid_index; |
4724ba56 IS |
6497 | int err; |
6498 | ||
6499 | mlxsw_sp = mlxsw_sp_lower_get(dev); | |
6500 | if (!mlxsw_sp) | |
6501 | return 0; | |
6502 | ||
bf95233e AS |
6503 | rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev); |
6504 | if (!rif) | |
4724ba56 | 6505 | return 0; |
a1107487 | 6506 | fid_index = mlxsw_sp_fid_index(rif->fid); |
4724ba56 | 6507 | |
a1107487 | 6508 | err = mlxsw_sp_rif_fdb_op(mlxsw_sp, rif->addr, fid_index, false); |
4724ba56 IS |
6509 | if (err) |
6510 | return err; | |
6511 | ||
bf95233e AS |
6512 | err = mlxsw_sp_rif_edit(mlxsw_sp, rif->rif_index, dev->dev_addr, |
6513 | dev->mtu); | |
4724ba56 IS |
6514 | if (err) |
6515 | goto err_rif_edit; | |
6516 | ||
a1107487 | 6517 | err = mlxsw_sp_rif_fdb_op(mlxsw_sp, dev->dev_addr, fid_index, true); |
4724ba56 IS |
6518 | if (err) |
6519 | goto err_rif_fdb_op; | |
6520 | ||
fd890fe9 YG |
6521 | if (rif->mtu != dev->mtu) { |
6522 | struct mlxsw_sp_vr *vr; | |
6523 | ||
6524 | /* The RIF is relevant only to its mr_table instance, as unlike | |
6525 | * unicast routing, in multicast routing a RIF cannot be shared | |
6526 | * between several multicast routing tables. | |
6527 | */ | |
6528 | vr = &mlxsw_sp->router->vrs[rif->vr_id]; | |
6529 | mlxsw_sp_mr_rif_mtu_update(vr->mr4_table, rif, dev->mtu); | |
6530 | } | |
6531 | ||
bf95233e AS |
6532 | ether_addr_copy(rif->addr, dev->dev_addr); |
6533 | rif->mtu = dev->mtu; | |
4724ba56 | 6534 | |
bf95233e | 6535 | netdev_dbg(dev, "Updated RIF=%d\n", rif->rif_index); |
4724ba56 IS |
6536 | |
6537 | return 0; | |
6538 | ||
6539 | err_rif_fdb_op: | |
bf95233e | 6540 | mlxsw_sp_rif_edit(mlxsw_sp, rif->rif_index, rif->addr, rif->mtu); |
4724ba56 | 6541 | err_rif_edit: |
a1107487 | 6542 | mlxsw_sp_rif_fdb_op(mlxsw_sp, rif->addr, fid_index, true); |
4724ba56 IS |
6543 | return err; |
6544 | } | |
6545 | ||
b1e45526 | 6546 | static int mlxsw_sp_port_vrf_join(struct mlxsw_sp *mlxsw_sp, |
f8fa9b4e DA |
6547 | struct net_device *l3_dev, |
6548 | struct netlink_ext_ack *extack) | |
7179eb5a | 6549 | { |
b1e45526 | 6550 | struct mlxsw_sp_rif *rif; |
7179eb5a | 6551 | |
b1e45526 IS |
6552 | /* If netdev is already associated with a RIF, then we need to |
6553 | * destroy it and create a new one with the new virtual router ID. | |
7179eb5a | 6554 | */ |
b1e45526 IS |
6555 | rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, l3_dev); |
6556 | if (rif) | |
f8fa9b4e | 6557 | __mlxsw_sp_inetaddr_event(l3_dev, NETDEV_DOWN, extack); |
7179eb5a | 6558 | |
f8fa9b4e | 6559 | return __mlxsw_sp_inetaddr_event(l3_dev, NETDEV_UP, extack); |
7179eb5a IS |
6560 | } |
6561 | ||
b1e45526 IS |
6562 | static void mlxsw_sp_port_vrf_leave(struct mlxsw_sp *mlxsw_sp, |
6563 | struct net_device *l3_dev) | |
7179eb5a | 6564 | { |
b1e45526 | 6565 | struct mlxsw_sp_rif *rif; |
7179eb5a | 6566 | |
b1e45526 IS |
6567 | rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, l3_dev); |
6568 | if (!rif) | |
7179eb5a | 6569 | return; |
f8fa9b4e | 6570 | __mlxsw_sp_inetaddr_event(l3_dev, NETDEV_DOWN, NULL); |
7179eb5a IS |
6571 | } |
6572 | ||
b1e45526 IS |
6573 | int mlxsw_sp_netdevice_vrf_event(struct net_device *l3_dev, unsigned long event, |
6574 | struct netdev_notifier_changeupper_info *info) | |
3d70e458 | 6575 | { |
b1e45526 IS |
6576 | struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(l3_dev); |
6577 | int err = 0; | |
3d70e458 | 6578 | |
b1e45526 IS |
6579 | if (!mlxsw_sp) |
6580 | return 0; | |
3d70e458 | 6581 | |
b1e45526 IS |
6582 | switch (event) { |
6583 | case NETDEV_PRECHANGEUPPER: | |
6584 | return 0; | |
6585 | case NETDEV_CHANGEUPPER: | |
f8fa9b4e DA |
6586 | if (info->linking) { |
6587 | struct netlink_ext_ack *extack; | |
6588 | ||
6589 | extack = netdev_notifier_info_to_extack(&info->info); | |
6590 | err = mlxsw_sp_port_vrf_join(mlxsw_sp, l3_dev, extack); | |
6591 | } else { | |
b1e45526 | 6592 | mlxsw_sp_port_vrf_leave(mlxsw_sp, l3_dev); |
f8fa9b4e | 6593 | } |
b1e45526 IS |
6594 | break; |
6595 | } | |
3d70e458 | 6596 | |
b1e45526 | 6597 | return err; |
3d70e458 IS |
6598 | } |
6599 | ||
e4f3c1c1 IS |
6600 | static struct mlxsw_sp_rif_subport * |
6601 | mlxsw_sp_rif_subport_rif(const struct mlxsw_sp_rif *rif) | |
a1107487 | 6602 | { |
e4f3c1c1 IS |
6603 | return container_of(rif, struct mlxsw_sp_rif_subport, common); |
6604 | } | |
6605 | ||
6606 | static void mlxsw_sp_rif_subport_setup(struct mlxsw_sp_rif *rif, | |
6607 | const struct mlxsw_sp_rif_params *params) | |
6608 | { | |
6609 | struct mlxsw_sp_rif_subport *rif_subport; | |
6610 | ||
6611 | rif_subport = mlxsw_sp_rif_subport_rif(rif); | |
6612 | rif_subport->vid = params->vid; | |
6613 | rif_subport->lag = params->lag; | |
6614 | if (params->lag) | |
6615 | rif_subport->lag_id = params->lag_id; | |
a1107487 | 6616 | else |
e4f3c1c1 IS |
6617 | rif_subport->system_port = params->system_port; |
6618 | } | |
6619 | ||
6620 | static int mlxsw_sp_rif_subport_op(struct mlxsw_sp_rif *rif, bool enable) | |
6621 | { | |
6622 | struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp; | |
6623 | struct mlxsw_sp_rif_subport *rif_subport; | |
6624 | char ritr_pl[MLXSW_REG_RITR_LEN]; | |
6625 | ||
6626 | rif_subport = mlxsw_sp_rif_subport_rif(rif); | |
6627 | mlxsw_reg_ritr_pack(ritr_pl, enable, MLXSW_REG_RITR_SP_IF, | |
9571e828 PM |
6628 | rif->rif_index, rif->vr_id, rif->dev->mtu); |
6629 | mlxsw_reg_ritr_mac_pack(ritr_pl, rif->dev->dev_addr); | |
e4f3c1c1 IS |
6630 | mlxsw_reg_ritr_sp_if_pack(ritr_pl, rif_subport->lag, |
6631 | rif_subport->lag ? rif_subport->lag_id : | |
6632 | rif_subport->system_port, | |
6633 | rif_subport->vid); | |
6634 | ||
6635 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl); | |
6636 | } | |
6637 | ||
6638 | static int mlxsw_sp_rif_subport_configure(struct mlxsw_sp_rif *rif) | |
6639 | { | |
010cadf9 PM |
6640 | int err; |
6641 | ||
6642 | err = mlxsw_sp_rif_subport_op(rif, true); | |
6643 | if (err) | |
6644 | return err; | |
6645 | ||
6646 | err = mlxsw_sp_rif_fdb_op(rif->mlxsw_sp, rif->dev->dev_addr, | |
6647 | mlxsw_sp_fid_index(rif->fid), true); | |
6648 | if (err) | |
6649 | goto err_rif_fdb_op; | |
6650 | ||
6651 | mlxsw_sp_fid_rif_set(rif->fid, rif); | |
6652 | return 0; | |
6653 | ||
6654 | err_rif_fdb_op: | |
6655 | mlxsw_sp_rif_subport_op(rif, false); | |
6656 | return err; | |
a1107487 IS |
6657 | } |
6658 | ||
e4f3c1c1 IS |
6659 | static void mlxsw_sp_rif_subport_deconfigure(struct mlxsw_sp_rif *rif) |
6660 | { | |
010cadf9 PM |
6661 | struct mlxsw_sp_fid *fid = rif->fid; |
6662 | ||
6663 | mlxsw_sp_fid_rif_set(fid, NULL); | |
6664 | mlxsw_sp_rif_fdb_op(rif->mlxsw_sp, rif->dev->dev_addr, | |
6665 | mlxsw_sp_fid_index(fid), false); | |
e4f3c1c1 IS |
6666 | mlxsw_sp_rif_subport_op(rif, false); |
6667 | } | |
6668 | ||
6669 | static struct mlxsw_sp_fid * | |
6670 | mlxsw_sp_rif_subport_fid_get(struct mlxsw_sp_rif *rif) | |
6671 | { | |
6672 | return mlxsw_sp_fid_rfid_get(rif->mlxsw_sp, rif->rif_index); | |
6673 | } | |
6674 | ||
6675 | static const struct mlxsw_sp_rif_ops mlxsw_sp_rif_subport_ops = { | |
6676 | .type = MLXSW_SP_RIF_TYPE_SUBPORT, | |
6677 | .rif_size = sizeof(struct mlxsw_sp_rif_subport), | |
6678 | .setup = mlxsw_sp_rif_subport_setup, | |
6679 | .configure = mlxsw_sp_rif_subport_configure, | |
6680 | .deconfigure = mlxsw_sp_rif_subport_deconfigure, | |
6681 | .fid_get = mlxsw_sp_rif_subport_fid_get, | |
6682 | }; | |
6683 | ||
6684 | static int mlxsw_sp_rif_vlan_fid_op(struct mlxsw_sp_rif *rif, | |
6685 | enum mlxsw_reg_ritr_if_type type, | |
6686 | u16 vid_fid, bool enable) | |
6687 | { | |
6688 | struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp; | |
6689 | char ritr_pl[MLXSW_REG_RITR_LEN]; | |
6690 | ||
6691 | mlxsw_reg_ritr_pack(ritr_pl, enable, type, rif->rif_index, rif->vr_id, | |
9571e828 PM |
6692 | rif->dev->mtu); |
6693 | mlxsw_reg_ritr_mac_pack(ritr_pl, rif->dev->dev_addr); | |
e4f3c1c1 IS |
6694 | mlxsw_reg_ritr_fid_set(ritr_pl, type, vid_fid); |
6695 | ||
6696 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl); | |
6697 | } | |
6698 | ||
b35750f1 | 6699 | u8 mlxsw_sp_router_port(const struct mlxsw_sp *mlxsw_sp) |
e4f3c1c1 IS |
6700 | { |
6701 | return mlxsw_core_max_ports(mlxsw_sp->core) + 1; | |
6702 | } | |
6703 | ||
6704 | static int mlxsw_sp_rif_vlan_configure(struct mlxsw_sp_rif *rif) | |
6705 | { | |
6706 | struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp; | |
6707 | u16 vid = mlxsw_sp_fid_8021q_vid(rif->fid); | |
6708 | int err; | |
6709 | ||
6710 | err = mlxsw_sp_rif_vlan_fid_op(rif, MLXSW_REG_RITR_VLAN_IF, vid, true); | |
6711 | if (err) | |
6712 | return err; | |
6713 | ||
0d284818 IS |
6714 | err = mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_MC, |
6715 | mlxsw_sp_router_port(mlxsw_sp), true); | |
6716 | if (err) | |
6717 | goto err_fid_mc_flood_set; | |
6718 | ||
e4f3c1c1 IS |
6719 | err = mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_BC, |
6720 | mlxsw_sp_router_port(mlxsw_sp), true); | |
6721 | if (err) | |
6722 | goto err_fid_bc_flood_set; | |
6723 | ||
010cadf9 PM |
6724 | err = mlxsw_sp_rif_fdb_op(rif->mlxsw_sp, rif->dev->dev_addr, |
6725 | mlxsw_sp_fid_index(rif->fid), true); | |
6726 | if (err) | |
6727 | goto err_rif_fdb_op; | |
6728 | ||
6729 | mlxsw_sp_fid_rif_set(rif->fid, rif); | |
e4f3c1c1 IS |
6730 | return 0; |
6731 | ||
010cadf9 PM |
6732 | err_rif_fdb_op: |
6733 | mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_BC, | |
6734 | mlxsw_sp_router_port(mlxsw_sp), false); | |
e4f3c1c1 | 6735 | err_fid_bc_flood_set: |
0d284818 IS |
6736 | mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_MC, |
6737 | mlxsw_sp_router_port(mlxsw_sp), false); | |
6738 | err_fid_mc_flood_set: | |
e4f3c1c1 IS |
6739 | mlxsw_sp_rif_vlan_fid_op(rif, MLXSW_REG_RITR_VLAN_IF, vid, false); |
6740 | return err; | |
6741 | } | |
6742 | ||
6743 | static void mlxsw_sp_rif_vlan_deconfigure(struct mlxsw_sp_rif *rif) | |
6744 | { | |
e4f3c1c1 | 6745 | u16 vid = mlxsw_sp_fid_8021q_vid(rif->fid); |
010cadf9 PM |
6746 | struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp; |
6747 | struct mlxsw_sp_fid *fid = rif->fid; | |
e4f3c1c1 | 6748 | |
010cadf9 PM |
6749 | mlxsw_sp_fid_rif_set(fid, NULL); |
6750 | mlxsw_sp_rif_fdb_op(rif->mlxsw_sp, rif->dev->dev_addr, | |
6751 | mlxsw_sp_fid_index(fid), false); | |
e4f3c1c1 IS |
6752 | mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_BC, |
6753 | mlxsw_sp_router_port(mlxsw_sp), false); | |
0d284818 IS |
6754 | mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_MC, |
6755 | mlxsw_sp_router_port(mlxsw_sp), false); | |
e4f3c1c1 IS |
6756 | mlxsw_sp_rif_vlan_fid_op(rif, MLXSW_REG_RITR_VLAN_IF, vid, false); |
6757 | } | |
6758 | ||
6759 | static struct mlxsw_sp_fid * | |
6760 | mlxsw_sp_rif_vlan_fid_get(struct mlxsw_sp_rif *rif) | |
6761 | { | |
6762 | u16 vid = is_vlan_dev(rif->dev) ? vlan_dev_vlan_id(rif->dev) : 1; | |
6763 | ||
6764 | return mlxsw_sp_fid_8021q_get(rif->mlxsw_sp, vid); | |
6765 | } | |
6766 | ||
6767 | static const struct mlxsw_sp_rif_ops mlxsw_sp_rif_vlan_ops = { | |
6768 | .type = MLXSW_SP_RIF_TYPE_VLAN, | |
6769 | .rif_size = sizeof(struct mlxsw_sp_rif), | |
6770 | .configure = mlxsw_sp_rif_vlan_configure, | |
6771 | .deconfigure = mlxsw_sp_rif_vlan_deconfigure, | |
6772 | .fid_get = mlxsw_sp_rif_vlan_fid_get, | |
6773 | }; | |
6774 | ||
6775 | static int mlxsw_sp_rif_fid_configure(struct mlxsw_sp_rif *rif) | |
6776 | { | |
6777 | struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp; | |
6778 | u16 fid_index = mlxsw_sp_fid_index(rif->fid); | |
6779 | int err; | |
6780 | ||
6781 | err = mlxsw_sp_rif_vlan_fid_op(rif, MLXSW_REG_RITR_FID_IF, fid_index, | |
6782 | true); | |
6783 | if (err) | |
6784 | return err; | |
6785 | ||
0d284818 IS |
6786 | err = mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_MC, |
6787 | mlxsw_sp_router_port(mlxsw_sp), true); | |
6788 | if (err) | |
6789 | goto err_fid_mc_flood_set; | |
6790 | ||
e4f3c1c1 IS |
6791 | err = mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_BC, |
6792 | mlxsw_sp_router_port(mlxsw_sp), true); | |
6793 | if (err) | |
6794 | goto err_fid_bc_flood_set; | |
6795 | ||
010cadf9 PM |
6796 | err = mlxsw_sp_rif_fdb_op(rif->mlxsw_sp, rif->dev->dev_addr, |
6797 | mlxsw_sp_fid_index(rif->fid), true); | |
6798 | if (err) | |
6799 | goto err_rif_fdb_op; | |
6800 | ||
6801 | mlxsw_sp_fid_rif_set(rif->fid, rif); | |
e4f3c1c1 IS |
6802 | return 0; |
6803 | ||
010cadf9 PM |
6804 | err_rif_fdb_op: |
6805 | mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_BC, | |
6806 | mlxsw_sp_router_port(mlxsw_sp), false); | |
e4f3c1c1 | 6807 | err_fid_bc_flood_set: |
0d284818 IS |
6808 | mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_MC, |
6809 | mlxsw_sp_router_port(mlxsw_sp), false); | |
6810 | err_fid_mc_flood_set: | |
e4f3c1c1 IS |
6811 | mlxsw_sp_rif_vlan_fid_op(rif, MLXSW_REG_RITR_FID_IF, fid_index, false); |
6812 | return err; | |
6813 | } | |
6814 | ||
6815 | static void mlxsw_sp_rif_fid_deconfigure(struct mlxsw_sp_rif *rif) | |
6816 | { | |
e4f3c1c1 | 6817 | u16 fid_index = mlxsw_sp_fid_index(rif->fid); |
010cadf9 PM |
6818 | struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp; |
6819 | struct mlxsw_sp_fid *fid = rif->fid; | |
e4f3c1c1 | 6820 | |
010cadf9 PM |
6821 | mlxsw_sp_fid_rif_set(fid, NULL); |
6822 | mlxsw_sp_rif_fdb_op(rif->mlxsw_sp, rif->dev->dev_addr, | |
6823 | mlxsw_sp_fid_index(fid), false); | |
e4f3c1c1 IS |
6824 | mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_BC, |
6825 | mlxsw_sp_router_port(mlxsw_sp), false); | |
0d284818 IS |
6826 | mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_MC, |
6827 | mlxsw_sp_router_port(mlxsw_sp), false); | |
e4f3c1c1 IS |
6828 | mlxsw_sp_rif_vlan_fid_op(rif, MLXSW_REG_RITR_FID_IF, fid_index, false); |
6829 | } | |
6830 | ||
6831 | static struct mlxsw_sp_fid * | |
6832 | mlxsw_sp_rif_fid_fid_get(struct mlxsw_sp_rif *rif) | |
6833 | { | |
6834 | return mlxsw_sp_fid_8021d_get(rif->mlxsw_sp, rif->dev->ifindex); | |
6835 | } | |
6836 | ||
6837 | static const struct mlxsw_sp_rif_ops mlxsw_sp_rif_fid_ops = { | |
6838 | .type = MLXSW_SP_RIF_TYPE_FID, | |
6839 | .rif_size = sizeof(struct mlxsw_sp_rif), | |
6840 | .configure = mlxsw_sp_rif_fid_configure, | |
6841 | .deconfigure = mlxsw_sp_rif_fid_deconfigure, | |
6842 | .fid_get = mlxsw_sp_rif_fid_fid_get, | |
6843 | }; | |
6844 | ||
6ddb7426 PM |
6845 | static struct mlxsw_sp_rif_ipip_lb * |
6846 | mlxsw_sp_rif_ipip_lb_rif(struct mlxsw_sp_rif *rif) | |
6847 | { | |
6848 | return container_of(rif, struct mlxsw_sp_rif_ipip_lb, common); | |
6849 | } | |
6850 | ||
6851 | static void | |
6852 | mlxsw_sp_rif_ipip_lb_setup(struct mlxsw_sp_rif *rif, | |
6853 | const struct mlxsw_sp_rif_params *params) | |
6854 | { | |
6855 | struct mlxsw_sp_rif_params_ipip_lb *params_lb; | |
6856 | struct mlxsw_sp_rif_ipip_lb *rif_lb; | |
6857 | ||
6858 | params_lb = container_of(params, struct mlxsw_sp_rif_params_ipip_lb, | |
6859 | common); | |
6860 | rif_lb = mlxsw_sp_rif_ipip_lb_rif(rif); | |
6861 | rif_lb->lb_config = params_lb->lb_config; | |
6862 | } | |
6863 | ||
6864 | static int | |
6865 | mlxsw_sp_rif_ipip_lb_op(struct mlxsw_sp_rif_ipip_lb *lb_rif, | |
6866 | struct mlxsw_sp_vr *ul_vr, bool enable) | |
6867 | { | |
6868 | struct mlxsw_sp_rif_ipip_lb_config lb_cf = lb_rif->lb_config; | |
6869 | struct mlxsw_sp_rif *rif = &lb_rif->common; | |
6870 | struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp; | |
6871 | char ritr_pl[MLXSW_REG_RITR_LEN]; | |
6872 | u32 saddr4; | |
6873 | ||
6874 | switch (lb_cf.ul_protocol) { | |
6875 | case MLXSW_SP_L3_PROTO_IPV4: | |
6876 | saddr4 = be32_to_cpu(lb_cf.saddr.addr4); | |
6877 | mlxsw_reg_ritr_pack(ritr_pl, enable, MLXSW_REG_RITR_LOOPBACK_IF, | |
6878 | rif->rif_index, rif->vr_id, rif->dev->mtu); | |
6879 | mlxsw_reg_ritr_loopback_ipip4_pack(ritr_pl, lb_cf.lb_ipipt, | |
6880 | MLXSW_REG_RITR_LOOPBACK_IPIP_OPTIONS_GRE_KEY_PRESET, | |
6881 | ul_vr->id, saddr4, lb_cf.okey); | |
6882 | break; | |
6883 | ||
6884 | case MLXSW_SP_L3_PROTO_IPV6: | |
6885 | return -EAFNOSUPPORT; | |
6886 | } | |
6887 | ||
6888 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl); | |
6889 | } | |
6890 | ||
6891 | static int | |
6892 | mlxsw_sp_rif_ipip_lb_configure(struct mlxsw_sp_rif *rif) | |
6893 | { | |
6894 | struct mlxsw_sp_rif_ipip_lb *lb_rif = mlxsw_sp_rif_ipip_lb_rif(rif); | |
6895 | u32 ul_tb_id = mlxsw_sp_ipip_dev_ul_tb_id(rif->dev); | |
6896 | struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp; | |
6897 | struct mlxsw_sp_vr *ul_vr; | |
6898 | int err; | |
6899 | ||
f8fa9b4e | 6900 | ul_vr = mlxsw_sp_vr_get(mlxsw_sp, ul_tb_id, NULL); |
6ddb7426 PM |
6901 | if (IS_ERR(ul_vr)) |
6902 | return PTR_ERR(ul_vr); | |
6903 | ||
6904 | err = mlxsw_sp_rif_ipip_lb_op(lb_rif, ul_vr, true); | |
6905 | if (err) | |
6906 | goto err_loopback_op; | |
6907 | ||
6908 | lb_rif->ul_vr_id = ul_vr->id; | |
6909 | ++ul_vr->rif_count; | |
6910 | return 0; | |
6911 | ||
6912 | err_loopback_op: | |
2b52ce02 | 6913 | mlxsw_sp_vr_put(mlxsw_sp, ul_vr); |
6ddb7426 PM |
6914 | return err; |
6915 | } | |
6916 | ||
6917 | static void mlxsw_sp_rif_ipip_lb_deconfigure(struct mlxsw_sp_rif *rif) | |
6918 | { | |
6919 | struct mlxsw_sp_rif_ipip_lb *lb_rif = mlxsw_sp_rif_ipip_lb_rif(rif); | |
6920 | struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp; | |
6921 | struct mlxsw_sp_vr *ul_vr; | |
6922 | ||
6923 | ul_vr = &mlxsw_sp->router->vrs[lb_rif->ul_vr_id]; | |
6924 | mlxsw_sp_rif_ipip_lb_op(lb_rif, ul_vr, false); | |
6925 | ||
6926 | --ul_vr->rif_count; | |
2b52ce02 | 6927 | mlxsw_sp_vr_put(mlxsw_sp, ul_vr); |
6ddb7426 PM |
6928 | } |
6929 | ||
6930 | static const struct mlxsw_sp_rif_ops mlxsw_sp_rif_ipip_lb_ops = { | |
6931 | .type = MLXSW_SP_RIF_TYPE_IPIP_LB, | |
6932 | .rif_size = sizeof(struct mlxsw_sp_rif_ipip_lb), | |
6933 | .setup = mlxsw_sp_rif_ipip_lb_setup, | |
6934 | .configure = mlxsw_sp_rif_ipip_lb_configure, | |
6935 | .deconfigure = mlxsw_sp_rif_ipip_lb_deconfigure, | |
6936 | }; | |
6937 | ||
e4f3c1c1 IS |
6938 | static const struct mlxsw_sp_rif_ops *mlxsw_sp_rif_ops_arr[] = { |
6939 | [MLXSW_SP_RIF_TYPE_SUBPORT] = &mlxsw_sp_rif_subport_ops, | |
6940 | [MLXSW_SP_RIF_TYPE_VLAN] = &mlxsw_sp_rif_vlan_ops, | |
6941 | [MLXSW_SP_RIF_TYPE_FID] = &mlxsw_sp_rif_fid_ops, | |
6ddb7426 | 6942 | [MLXSW_SP_RIF_TYPE_IPIP_LB] = &mlxsw_sp_rif_ipip_lb_ops, |
e4f3c1c1 IS |
6943 | }; |
6944 | ||
348b8fc3 IS |
6945 | static int mlxsw_sp_rifs_init(struct mlxsw_sp *mlxsw_sp) |
6946 | { | |
6947 | u64 max_rifs = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_RIFS); | |
6948 | ||
6949 | mlxsw_sp->router->rifs = kcalloc(max_rifs, | |
6950 | sizeof(struct mlxsw_sp_rif *), | |
6951 | GFP_KERNEL); | |
6952 | if (!mlxsw_sp->router->rifs) | |
6953 | return -ENOMEM; | |
e4f3c1c1 IS |
6954 | |
6955 | mlxsw_sp->router->rif_ops_arr = mlxsw_sp_rif_ops_arr; | |
6956 | ||
348b8fc3 IS |
6957 | return 0; |
6958 | } | |
6959 | ||
6960 | static void mlxsw_sp_rifs_fini(struct mlxsw_sp *mlxsw_sp) | |
6961 | { | |
6962 | int i; | |
6963 | ||
6964 | for (i = 0; i < MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_RIFS); i++) | |
6965 | WARN_ON_ONCE(mlxsw_sp->router->rifs[i]); | |
6966 | ||
6967 | kfree(mlxsw_sp->router->rifs); | |
6968 | } | |
6969 | ||
dcbda282 PM |
6970 | static int |
6971 | mlxsw_sp_ipip_config_tigcr(struct mlxsw_sp *mlxsw_sp) | |
6972 | { | |
6973 | char tigcr_pl[MLXSW_REG_TIGCR_LEN]; | |
6974 | ||
6975 | mlxsw_reg_tigcr_pack(tigcr_pl, true, 0); | |
6976 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(tigcr), tigcr_pl); | |
6977 | } | |
6978 | ||
38ebc0f4 PM |
6979 | static int mlxsw_sp_ipips_init(struct mlxsw_sp *mlxsw_sp) |
6980 | { | |
6981 | mlxsw_sp->router->ipip_ops_arr = mlxsw_sp_ipip_ops_arr; | |
1012b9ac | 6982 | INIT_LIST_HEAD(&mlxsw_sp->router->ipip_list); |
dcbda282 | 6983 | return mlxsw_sp_ipip_config_tigcr(mlxsw_sp); |
38ebc0f4 PM |
6984 | } |
6985 | ||
6986 | static void mlxsw_sp_ipips_fini(struct mlxsw_sp *mlxsw_sp) | |
6987 | { | |
1012b9ac | 6988 | WARN_ON(!list_empty(&mlxsw_sp->router->ipip_list)); |
38ebc0f4 PM |
6989 | } |
6990 | ||
c3852ef7 IS |
6991 | static void mlxsw_sp_router_fib_dump_flush(struct notifier_block *nb) |
6992 | { | |
7e39d115 | 6993 | struct mlxsw_sp_router *router; |
c3852ef7 IS |
6994 | |
6995 | /* Flush pending FIB notifications and then flush the device's | |
6996 | * table before requesting another dump. The FIB notification | |
6997 | * block is unregistered, so no need to take RTNL. | |
6998 | */ | |
6999 | mlxsw_core_flush_owq(); | |
7e39d115 IS |
7000 | router = container_of(nb, struct mlxsw_sp_router, fib_nb); |
7001 | mlxsw_sp_router_fib_flush(router->mlxsw_sp); | |
c3852ef7 IS |
7002 | } |
7003 | ||
af658b6a IS |
7004 | #ifdef CONFIG_IP_ROUTE_MULTIPATH |
7005 | static void mlxsw_sp_mp_hash_header_set(char *recr2_pl, int header) | |
7006 | { | |
7007 | mlxsw_reg_recr2_outer_header_enables_set(recr2_pl, header, true); | |
7008 | } | |
7009 | ||
7010 | static void mlxsw_sp_mp_hash_field_set(char *recr2_pl, int field) | |
7011 | { | |
7012 | mlxsw_reg_recr2_outer_header_fields_enable_set(recr2_pl, field, true); | |
7013 | } | |
7014 | ||
7015 | static void mlxsw_sp_mp4_hash_init(char *recr2_pl) | |
7016 | { | |
7017 | bool only_l3 = !init_net.ipv4.sysctl_fib_multipath_hash_policy; | |
7018 | ||
7019 | mlxsw_sp_mp_hash_header_set(recr2_pl, | |
7020 | MLXSW_REG_RECR2_IPV4_EN_NOT_TCP_NOT_UDP); | |
7021 | mlxsw_sp_mp_hash_header_set(recr2_pl, MLXSW_REG_RECR2_IPV4_EN_TCP_UDP); | |
7022 | mlxsw_reg_recr2_ipv4_sip_enable(recr2_pl); | |
7023 | mlxsw_reg_recr2_ipv4_dip_enable(recr2_pl); | |
7024 | if (only_l3) | |
7025 | return; | |
7026 | mlxsw_sp_mp_hash_header_set(recr2_pl, MLXSW_REG_RECR2_TCP_UDP_EN_IPV4); | |
7027 | mlxsw_sp_mp_hash_field_set(recr2_pl, MLXSW_REG_RECR2_IPV4_PROTOCOL); | |
7028 | mlxsw_sp_mp_hash_field_set(recr2_pl, MLXSW_REG_RECR2_TCP_UDP_SPORT); | |
7029 | mlxsw_sp_mp_hash_field_set(recr2_pl, MLXSW_REG_RECR2_TCP_UDP_DPORT); | |
7030 | } | |
7031 | ||
7032 | static void mlxsw_sp_mp6_hash_init(char *recr2_pl) | |
7033 | { | |
5e18b9c5 DA |
7034 | bool only_l3 = !init_net.ipv6.sysctl.multipath_hash_policy; |
7035 | ||
af658b6a IS |
7036 | mlxsw_sp_mp_hash_header_set(recr2_pl, |
7037 | MLXSW_REG_RECR2_IPV6_EN_NOT_TCP_NOT_UDP); | |
7038 | mlxsw_sp_mp_hash_header_set(recr2_pl, MLXSW_REG_RECR2_IPV6_EN_TCP_UDP); | |
7039 | mlxsw_reg_recr2_ipv6_sip_enable(recr2_pl); | |
7040 | mlxsw_reg_recr2_ipv6_dip_enable(recr2_pl); | |
af658b6a | 7041 | mlxsw_sp_mp_hash_field_set(recr2_pl, MLXSW_REG_RECR2_IPV6_NEXT_HEADER); |
5e18b9c5 DA |
7042 | if (only_l3) { |
7043 | mlxsw_sp_mp_hash_field_set(recr2_pl, | |
7044 | MLXSW_REG_RECR2_IPV6_FLOW_LABEL); | |
7045 | } else { | |
7046 | mlxsw_sp_mp_hash_header_set(recr2_pl, | |
7047 | MLXSW_REG_RECR2_TCP_UDP_EN_IPV6); | |
7048 | mlxsw_sp_mp_hash_field_set(recr2_pl, | |
7049 | MLXSW_REG_RECR2_TCP_UDP_SPORT); | |
7050 | mlxsw_sp_mp_hash_field_set(recr2_pl, | |
7051 | MLXSW_REG_RECR2_TCP_UDP_DPORT); | |
7052 | } | |
af658b6a IS |
7053 | } |
7054 | ||
7055 | static int mlxsw_sp_mp_hash_init(struct mlxsw_sp *mlxsw_sp) | |
7056 | { | |
7057 | char recr2_pl[MLXSW_REG_RECR2_LEN]; | |
7058 | u32 seed; | |
7059 | ||
7060 | get_random_bytes(&seed, sizeof(seed)); | |
7061 | mlxsw_reg_recr2_pack(recr2_pl, seed); | |
7062 | mlxsw_sp_mp4_hash_init(recr2_pl); | |
7063 | mlxsw_sp_mp6_hash_init(recr2_pl); | |
7064 | ||
7065 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(recr2), recr2_pl); | |
7066 | } | |
7067 | #else | |
7068 | static int mlxsw_sp_mp_hash_init(struct mlxsw_sp *mlxsw_sp) | |
7069 | { | |
7070 | return 0; | |
7071 | } | |
7072 | #endif | |
7073 | ||
48276a29 YM |
7074 | static int mlxsw_sp_dscp_init(struct mlxsw_sp *mlxsw_sp) |
7075 | { | |
7076 | char rdpm_pl[MLXSW_REG_RDPM_LEN]; | |
7077 | unsigned int i; | |
7078 | ||
7079 | MLXSW_REG_ZERO(rdpm, rdpm_pl); | |
7080 | ||
7081 | /* HW is determining switch priority based on DSCP-bits, but the | |
7082 | * kernel is still doing that based on the ToS. Since there's a | |
7083 | * mismatch in bits we need to make sure to translate the right | |
7084 | * value ToS would observe, skipping the 2 least-significant ECN bits. | |
7085 | */ | |
7086 | for (i = 0; i < MLXSW_REG_RDPM_DSCP_ENTRY_REC_MAX_COUNT; i++) | |
7087 | mlxsw_reg_rdpm_pack(rdpm_pl, i, rt_tos2priority(i << 2)); | |
7088 | ||
7089 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rdpm), rdpm_pl); | |
7090 | } | |
7091 | ||
4724ba56 IS |
7092 | static int __mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp) |
7093 | { | |
7094 | char rgcr_pl[MLXSW_REG_RGCR_LEN]; | |
7095 | u64 max_rifs; | |
7096 | int err; | |
7097 | ||
7098 | if (!MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_RIFS)) | |
7099 | return -EIO; | |
4724ba56 | 7100 | max_rifs = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_RIFS); |
4724ba56 | 7101 | |
e29237e7 | 7102 | mlxsw_reg_rgcr_pack(rgcr_pl, true, true); |
4724ba56 | 7103 | mlxsw_reg_rgcr_max_router_interfaces_set(rgcr_pl, max_rifs); |
48276a29 | 7104 | mlxsw_reg_rgcr_usp_set(rgcr_pl, true); |
4724ba56 IS |
7105 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rgcr), rgcr_pl); |
7106 | if (err) | |
348b8fc3 | 7107 | return err; |
4724ba56 | 7108 | return 0; |
4724ba56 IS |
7109 | } |
7110 | ||
7111 | static void __mlxsw_sp_router_fini(struct mlxsw_sp *mlxsw_sp) | |
7112 | { | |
7113 | char rgcr_pl[MLXSW_REG_RGCR_LEN]; | |
4724ba56 | 7114 | |
e29237e7 | 7115 | mlxsw_reg_rgcr_pack(rgcr_pl, false, false); |
4724ba56 | 7116 | mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rgcr), rgcr_pl); |
4724ba56 IS |
7117 | } |
7118 | ||
b45f64d1 JP |
7119 | int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp) |
7120 | { | |
9011b677 | 7121 | struct mlxsw_sp_router *router; |
b45f64d1 JP |
7122 | int err; |
7123 | ||
9011b677 IS |
7124 | router = kzalloc(sizeof(*mlxsw_sp->router), GFP_KERNEL); |
7125 | if (!router) | |
7126 | return -ENOMEM; | |
7127 | mlxsw_sp->router = router; | |
7128 | router->mlxsw_sp = mlxsw_sp; | |
7129 | ||
7130 | INIT_LIST_HEAD(&mlxsw_sp->router->nexthop_neighs_list); | |
b45f64d1 JP |
7131 | err = __mlxsw_sp_router_init(mlxsw_sp); |
7132 | if (err) | |
9011b677 | 7133 | goto err_router_init; |
b45f64d1 | 7134 | |
348b8fc3 IS |
7135 | err = mlxsw_sp_rifs_init(mlxsw_sp); |
7136 | if (err) | |
7137 | goto err_rifs_init; | |
7138 | ||
38ebc0f4 PM |
7139 | err = mlxsw_sp_ipips_init(mlxsw_sp); |
7140 | if (err) | |
7141 | goto err_ipips_init; | |
7142 | ||
9011b677 | 7143 | err = rhashtable_init(&mlxsw_sp->router->nexthop_ht, |
c53b8e1b IS |
7144 | &mlxsw_sp_nexthop_ht_params); |
7145 | if (err) | |
7146 | goto err_nexthop_ht_init; | |
7147 | ||
9011b677 | 7148 | err = rhashtable_init(&mlxsw_sp->router->nexthop_group_ht, |
e9ad5e7d IS |
7149 | &mlxsw_sp_nexthop_group_ht_params); |
7150 | if (err) | |
7151 | goto err_nexthop_group_ht_init; | |
7152 | ||
dbe4598c | 7153 | INIT_LIST_HEAD(&mlxsw_sp->router->nexthop_list); |
8494ab06 IS |
7154 | err = mlxsw_sp_lpm_init(mlxsw_sp); |
7155 | if (err) | |
7156 | goto err_lpm_init; | |
7157 | ||
d42b0965 YG |
7158 | err = mlxsw_sp_mr_init(mlxsw_sp, &mlxsw_sp_mr_tcam_ops); |
7159 | if (err) | |
7160 | goto err_mr_init; | |
7161 | ||
b45f64d1 JP |
7162 | err = mlxsw_sp_vrs_init(mlxsw_sp); |
7163 | if (err) | |
7164 | goto err_vrs_init; | |
7165 | ||
8c9583a8 | 7166 | err = mlxsw_sp_neigh_init(mlxsw_sp); |
b45f64d1 JP |
7167 | if (err) |
7168 | goto err_neigh_init; | |
7169 | ||
48fac885 IS |
7170 | mlxsw_sp->router->netevent_nb.notifier_call = |
7171 | mlxsw_sp_router_netevent_event; | |
7172 | err = register_netevent_notifier(&mlxsw_sp->router->netevent_nb); | |
7173 | if (err) | |
7174 | goto err_register_netevent_notifier; | |
7175 | ||
af658b6a IS |
7176 | err = mlxsw_sp_mp_hash_init(mlxsw_sp); |
7177 | if (err) | |
7178 | goto err_mp_hash_init; | |
7179 | ||
48276a29 YM |
7180 | err = mlxsw_sp_dscp_init(mlxsw_sp); |
7181 | if (err) | |
7182 | goto err_dscp_init; | |
7183 | ||
7e39d115 IS |
7184 | mlxsw_sp->router->fib_nb.notifier_call = mlxsw_sp_router_fib_event; |
7185 | err = register_fib_notifier(&mlxsw_sp->router->fib_nb, | |
c3852ef7 IS |
7186 | mlxsw_sp_router_fib_dump_flush); |
7187 | if (err) | |
7188 | goto err_register_fib_notifier; | |
7189 | ||
b45f64d1 JP |
7190 | return 0; |
7191 | ||
c3852ef7 | 7192 | err_register_fib_notifier: |
48276a29 | 7193 | err_dscp_init: |
af658b6a | 7194 | err_mp_hash_init: |
48fac885 IS |
7195 | unregister_netevent_notifier(&mlxsw_sp->router->netevent_nb); |
7196 | err_register_netevent_notifier: | |
c3852ef7 | 7197 | mlxsw_sp_neigh_fini(mlxsw_sp); |
b45f64d1 JP |
7198 | err_neigh_init: |
7199 | mlxsw_sp_vrs_fini(mlxsw_sp); | |
7200 | err_vrs_init: | |
d42b0965 YG |
7201 | mlxsw_sp_mr_fini(mlxsw_sp); |
7202 | err_mr_init: | |
8494ab06 IS |
7203 | mlxsw_sp_lpm_fini(mlxsw_sp); |
7204 | err_lpm_init: | |
9011b677 | 7205 | rhashtable_destroy(&mlxsw_sp->router->nexthop_group_ht); |
e9ad5e7d | 7206 | err_nexthop_group_ht_init: |
9011b677 | 7207 | rhashtable_destroy(&mlxsw_sp->router->nexthop_ht); |
c53b8e1b | 7208 | err_nexthop_ht_init: |
38ebc0f4 PM |
7209 | mlxsw_sp_ipips_fini(mlxsw_sp); |
7210 | err_ipips_init: | |
348b8fc3 IS |
7211 | mlxsw_sp_rifs_fini(mlxsw_sp); |
7212 | err_rifs_init: | |
b45f64d1 | 7213 | __mlxsw_sp_router_fini(mlxsw_sp); |
9011b677 IS |
7214 | err_router_init: |
7215 | kfree(mlxsw_sp->router); | |
b45f64d1 JP |
7216 | return err; |
7217 | } | |
7218 | ||
7219 | void mlxsw_sp_router_fini(struct mlxsw_sp *mlxsw_sp) | |
7220 | { | |
7e39d115 | 7221 | unregister_fib_notifier(&mlxsw_sp->router->fib_nb); |
48fac885 | 7222 | unregister_netevent_notifier(&mlxsw_sp->router->netevent_nb); |
b45f64d1 JP |
7223 | mlxsw_sp_neigh_fini(mlxsw_sp); |
7224 | mlxsw_sp_vrs_fini(mlxsw_sp); | |
d42b0965 | 7225 | mlxsw_sp_mr_fini(mlxsw_sp); |
8494ab06 | 7226 | mlxsw_sp_lpm_fini(mlxsw_sp); |
9011b677 IS |
7227 | rhashtable_destroy(&mlxsw_sp->router->nexthop_group_ht); |
7228 | rhashtable_destroy(&mlxsw_sp->router->nexthop_ht); | |
38ebc0f4 | 7229 | mlxsw_sp_ipips_fini(mlxsw_sp); |
348b8fc3 | 7230 | mlxsw_sp_rifs_fini(mlxsw_sp); |
b45f64d1 | 7231 | __mlxsw_sp_router_fini(mlxsw_sp); |
9011b677 | 7232 | kfree(mlxsw_sp->router); |
b45f64d1 | 7233 | } |