2 * drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
3 * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
4 * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
5 * Copyright (c) 2016 Ido Schimmel <idosch@mellanox.com>
6 * Copyright (c) 2016 Yotam Gigi <yotamg@mellanox.com>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the names of the copyright holders nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
20 * Alternatively, this software may be distributed under the terms of the
21 * GNU General Public License ("GPL") version 2 as published by the Free
22 * Software Foundation.
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
37 #include <linux/kernel.h>
38 #include <linux/types.h>
39 #include <linux/rhashtable.h>
40 #include <linux/bitops.h>
41 #include <linux/in6.h>
42 #include <linux/notifier.h>
43 #include <linux/inetdevice.h>
44 #include <linux/netdevice.h>
45 #include <linux/if_bridge.h>
46 #include <net/netevent.h>
47 #include <net/neighbour.h>
49 #include <net/ip_fib.h>
50 #include <net/fib_rules.h>
51 #include <net/l3mdev.h>
56 #include "spectrum_cnt.h"
57 #include "spectrum_dpipe.h"
58 #include "spectrum_router.h"
61 struct mlxsw_sp_lpm_tree
;
62 struct mlxsw_sp_rif_ops
;
64 struct mlxsw_sp_router
{
65 struct mlxsw_sp
*mlxsw_sp
;
66 struct mlxsw_sp_rif
**rifs
;
67 struct mlxsw_sp_vr
*vrs
;
68 struct rhashtable neigh_ht
;
69 struct rhashtable nexthop_group_ht
;
70 struct rhashtable nexthop_ht
;
72 struct mlxsw_sp_lpm_tree
*trees
;
73 unsigned int tree_count
;
76 struct delayed_work dw
;
77 unsigned long interval
; /* ms */
79 struct delayed_work nexthop_probe_dw
;
80 #define MLXSW_SP_UNRESOLVED_NH_PROBE_INTERVAL 5000 /* ms */
81 struct list_head nexthop_neighs_list
;
83 struct notifier_block fib_nb
;
84 const struct mlxsw_sp_rif_ops
**rif_ops_arr
;
88 struct list_head nexthop_list
;
89 struct list_head neigh_list
;
90 struct net_device
*dev
;
91 struct mlxsw_sp_fid
*fid
;
92 unsigned char addr
[ETH_ALEN
];
96 const struct mlxsw_sp_rif_ops
*ops
;
97 struct mlxsw_sp
*mlxsw_sp
;
99 unsigned int counter_ingress
;
100 bool counter_ingress_valid
;
101 unsigned int counter_egress
;
102 bool counter_egress_valid
;
105 struct mlxsw_sp_rif_params
{
106 struct net_device
*dev
;
115 struct mlxsw_sp_rif_subport
{
116 struct mlxsw_sp_rif common
;
125 struct mlxsw_sp_rif_ops
{
126 enum mlxsw_sp_rif_type type
;
129 void (*setup
)(struct mlxsw_sp_rif
*rif
,
130 const struct mlxsw_sp_rif_params
*params
);
131 int (*configure
)(struct mlxsw_sp_rif
*rif
);
132 void (*deconfigure
)(struct mlxsw_sp_rif
*rif
);
133 struct mlxsw_sp_fid
* (*fid_get
)(struct mlxsw_sp_rif
*rif
);
136 static unsigned int *
137 mlxsw_sp_rif_p_counter_get(struct mlxsw_sp_rif
*rif
,
138 enum mlxsw_sp_rif_counter_dir dir
)
141 case MLXSW_SP_RIF_COUNTER_EGRESS
:
142 return &rif
->counter_egress
;
143 case MLXSW_SP_RIF_COUNTER_INGRESS
:
144 return &rif
->counter_ingress
;
150 mlxsw_sp_rif_counter_valid_get(struct mlxsw_sp_rif
*rif
,
151 enum mlxsw_sp_rif_counter_dir dir
)
154 case MLXSW_SP_RIF_COUNTER_EGRESS
:
155 return rif
->counter_egress_valid
;
156 case MLXSW_SP_RIF_COUNTER_INGRESS
:
157 return rif
->counter_ingress_valid
;
163 mlxsw_sp_rif_counter_valid_set(struct mlxsw_sp_rif
*rif
,
164 enum mlxsw_sp_rif_counter_dir dir
,
168 case MLXSW_SP_RIF_COUNTER_EGRESS
:
169 rif
->counter_egress_valid
= valid
;
171 case MLXSW_SP_RIF_COUNTER_INGRESS
:
172 rif
->counter_ingress_valid
= valid
;
177 static int mlxsw_sp_rif_counter_edit(struct mlxsw_sp
*mlxsw_sp
, u16 rif_index
,
178 unsigned int counter_index
, bool enable
,
179 enum mlxsw_sp_rif_counter_dir dir
)
181 char ritr_pl
[MLXSW_REG_RITR_LEN
];
182 bool is_egress
= false;
185 if (dir
== MLXSW_SP_RIF_COUNTER_EGRESS
)
187 mlxsw_reg_ritr_rif_pack(ritr_pl
, rif_index
);
188 err
= mlxsw_reg_query(mlxsw_sp
->core
, MLXSW_REG(ritr
), ritr_pl
);
192 mlxsw_reg_ritr_counter_pack(ritr_pl
, counter_index
, enable
,
194 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ritr
), ritr_pl
);
197 int mlxsw_sp_rif_counter_value_get(struct mlxsw_sp
*mlxsw_sp
,
198 struct mlxsw_sp_rif
*rif
,
199 enum mlxsw_sp_rif_counter_dir dir
, u64
*cnt
)
201 char ricnt_pl
[MLXSW_REG_RICNT_LEN
];
202 unsigned int *p_counter_index
;
206 valid
= mlxsw_sp_rif_counter_valid_get(rif
, dir
);
210 p_counter_index
= mlxsw_sp_rif_p_counter_get(rif
, dir
);
211 if (!p_counter_index
)
213 mlxsw_reg_ricnt_pack(ricnt_pl
, *p_counter_index
,
214 MLXSW_REG_RICNT_OPCODE_NOP
);
215 err
= mlxsw_reg_query(mlxsw_sp
->core
, MLXSW_REG(ricnt
), ricnt_pl
);
218 *cnt
= mlxsw_reg_ricnt_good_unicast_packets_get(ricnt_pl
);
222 static int mlxsw_sp_rif_counter_clear(struct mlxsw_sp
*mlxsw_sp
,
223 unsigned int counter_index
)
225 char ricnt_pl
[MLXSW_REG_RICNT_LEN
];
227 mlxsw_reg_ricnt_pack(ricnt_pl
, counter_index
,
228 MLXSW_REG_RICNT_OPCODE_CLEAR
);
229 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ricnt
), ricnt_pl
);
232 int mlxsw_sp_rif_counter_alloc(struct mlxsw_sp
*mlxsw_sp
,
233 struct mlxsw_sp_rif
*rif
,
234 enum mlxsw_sp_rif_counter_dir dir
)
236 unsigned int *p_counter_index
;
239 p_counter_index
= mlxsw_sp_rif_p_counter_get(rif
, dir
);
240 if (!p_counter_index
)
242 err
= mlxsw_sp_counter_alloc(mlxsw_sp
, MLXSW_SP_COUNTER_SUB_POOL_RIF
,
247 err
= mlxsw_sp_rif_counter_clear(mlxsw_sp
, *p_counter_index
);
249 goto err_counter_clear
;
251 err
= mlxsw_sp_rif_counter_edit(mlxsw_sp
, rif
->rif_index
,
252 *p_counter_index
, true, dir
);
254 goto err_counter_edit
;
255 mlxsw_sp_rif_counter_valid_set(rif
, dir
, true);
260 mlxsw_sp_counter_free(mlxsw_sp
, MLXSW_SP_COUNTER_SUB_POOL_RIF
,
265 void mlxsw_sp_rif_counter_free(struct mlxsw_sp
*mlxsw_sp
,
266 struct mlxsw_sp_rif
*rif
,
267 enum mlxsw_sp_rif_counter_dir dir
)
269 unsigned int *p_counter_index
;
271 if (!mlxsw_sp_rif_counter_valid_get(rif
, dir
))
274 p_counter_index
= mlxsw_sp_rif_p_counter_get(rif
, dir
);
275 if (WARN_ON(!p_counter_index
))
277 mlxsw_sp_rif_counter_edit(mlxsw_sp
, rif
->rif_index
,
278 *p_counter_index
, false, dir
);
279 mlxsw_sp_counter_free(mlxsw_sp
, MLXSW_SP_COUNTER_SUB_POOL_RIF
,
281 mlxsw_sp_rif_counter_valid_set(rif
, dir
, false);
284 static void mlxsw_sp_rif_counters_alloc(struct mlxsw_sp_rif
*rif
)
286 struct mlxsw_sp
*mlxsw_sp
= rif
->mlxsw_sp
;
287 struct devlink
*devlink
;
289 devlink
= priv_to_devlink(mlxsw_sp
->core
);
290 if (!devlink_dpipe_table_counter_enabled(devlink
,
291 MLXSW_SP_DPIPE_TABLE_NAME_ERIF
))
293 mlxsw_sp_rif_counter_alloc(mlxsw_sp
, rif
, MLXSW_SP_RIF_COUNTER_EGRESS
);
296 static void mlxsw_sp_rif_counters_free(struct mlxsw_sp_rif
*rif
)
298 struct mlxsw_sp
*mlxsw_sp
= rif
->mlxsw_sp
;
300 mlxsw_sp_rif_counter_free(mlxsw_sp
, rif
, MLXSW_SP_RIF_COUNTER_EGRESS
);
303 static struct mlxsw_sp_rif
*
304 mlxsw_sp_rif_find_by_dev(const struct mlxsw_sp
*mlxsw_sp
,
305 const struct net_device
*dev
);
307 #define MLXSW_SP_PREFIX_COUNT (sizeof(struct in6_addr) * BITS_PER_BYTE)
309 struct mlxsw_sp_prefix_usage
{
310 DECLARE_BITMAP(b
, MLXSW_SP_PREFIX_COUNT
);
313 #define mlxsw_sp_prefix_usage_for_each(prefix, prefix_usage) \
314 for_each_set_bit(prefix, (prefix_usage)->b, MLXSW_SP_PREFIX_COUNT)
317 mlxsw_sp_prefix_usage_subset(struct mlxsw_sp_prefix_usage
*prefix_usage1
,
318 struct mlxsw_sp_prefix_usage
*prefix_usage2
)
320 unsigned char prefix
;
322 mlxsw_sp_prefix_usage_for_each(prefix
, prefix_usage1
) {
323 if (!test_bit(prefix
, prefix_usage2
->b
))
330 mlxsw_sp_prefix_usage_eq(struct mlxsw_sp_prefix_usage
*prefix_usage1
,
331 struct mlxsw_sp_prefix_usage
*prefix_usage2
)
333 return !memcmp(prefix_usage1
, prefix_usage2
, sizeof(*prefix_usage1
));
337 mlxsw_sp_prefix_usage_none(struct mlxsw_sp_prefix_usage
*prefix_usage
)
339 struct mlxsw_sp_prefix_usage prefix_usage_none
= {{ 0 } };
341 return mlxsw_sp_prefix_usage_eq(prefix_usage
, &prefix_usage_none
);
345 mlxsw_sp_prefix_usage_cpy(struct mlxsw_sp_prefix_usage
*prefix_usage1
,
346 struct mlxsw_sp_prefix_usage
*prefix_usage2
)
348 memcpy(prefix_usage1
, prefix_usage2
, sizeof(*prefix_usage1
));
352 mlxsw_sp_prefix_usage_set(struct mlxsw_sp_prefix_usage
*prefix_usage
,
353 unsigned char prefix_len
)
355 set_bit(prefix_len
, prefix_usage
->b
);
359 mlxsw_sp_prefix_usage_clear(struct mlxsw_sp_prefix_usage
*prefix_usage
,
360 unsigned char prefix_len
)
362 clear_bit(prefix_len
, prefix_usage
->b
);
365 struct mlxsw_sp_fib_key
{
366 unsigned char addr
[sizeof(struct in6_addr
)];
367 unsigned char prefix_len
;
370 enum mlxsw_sp_fib_entry_type
{
371 MLXSW_SP_FIB_ENTRY_TYPE_REMOTE
,
372 MLXSW_SP_FIB_ENTRY_TYPE_LOCAL
,
373 MLXSW_SP_FIB_ENTRY_TYPE_TRAP
,
376 struct mlxsw_sp_nexthop_group
;
379 struct mlxsw_sp_fib_node
{
380 struct list_head entry_list
;
381 struct list_head list
;
382 struct rhash_head ht_node
;
383 struct mlxsw_sp_fib
*fib
;
384 struct mlxsw_sp_fib_key key
;
387 struct mlxsw_sp_fib_entry_params
{
394 struct mlxsw_sp_fib_entry
{
395 struct list_head list
;
396 struct mlxsw_sp_fib_node
*fib_node
;
397 enum mlxsw_sp_fib_entry_type type
;
398 struct list_head nexthop_group_node
;
399 struct mlxsw_sp_nexthop_group
*nh_group
;
400 struct mlxsw_sp_fib_entry_params params
;
404 enum mlxsw_sp_l3proto
{
405 MLXSW_SP_L3_PROTO_IPV4
,
406 MLXSW_SP_L3_PROTO_IPV6
,
409 struct mlxsw_sp_lpm_tree
{
411 unsigned int ref_count
;
412 enum mlxsw_sp_l3proto proto
;
413 struct mlxsw_sp_prefix_usage prefix_usage
;
416 struct mlxsw_sp_fib
{
417 struct rhashtable ht
;
418 struct list_head node_list
;
419 struct mlxsw_sp_vr
*vr
;
420 struct mlxsw_sp_lpm_tree
*lpm_tree
;
421 unsigned long prefix_ref_count
[MLXSW_SP_PREFIX_COUNT
];
422 struct mlxsw_sp_prefix_usage prefix_usage
;
423 enum mlxsw_sp_l3proto proto
;
427 u16 id
; /* virtual router ID */
428 u32 tb_id
; /* kernel fib table id */
429 unsigned int rif_count
;
430 struct mlxsw_sp_fib
*fib4
;
433 static const struct rhashtable_params mlxsw_sp_fib_ht_params
;
435 static struct mlxsw_sp_fib
*mlxsw_sp_fib_create(struct mlxsw_sp_vr
*vr
,
436 enum mlxsw_sp_l3proto proto
)
438 struct mlxsw_sp_fib
*fib
;
441 fib
= kzalloc(sizeof(*fib
), GFP_KERNEL
);
443 return ERR_PTR(-ENOMEM
);
444 err
= rhashtable_init(&fib
->ht
, &mlxsw_sp_fib_ht_params
);
446 goto err_rhashtable_init
;
447 INIT_LIST_HEAD(&fib
->node_list
);
457 static void mlxsw_sp_fib_destroy(struct mlxsw_sp_fib
*fib
)
459 WARN_ON(!list_empty(&fib
->node_list
));
460 WARN_ON(fib
->lpm_tree
);
461 rhashtable_destroy(&fib
->ht
);
465 static struct mlxsw_sp_lpm_tree
*
466 mlxsw_sp_lpm_tree_find_unused(struct mlxsw_sp
*mlxsw_sp
)
468 static struct mlxsw_sp_lpm_tree
*lpm_tree
;
471 for (i
= 0; i
< mlxsw_sp
->router
->lpm
.tree_count
; i
++) {
472 lpm_tree
= &mlxsw_sp
->router
->lpm
.trees
[i
];
473 if (lpm_tree
->ref_count
== 0)
479 static int mlxsw_sp_lpm_tree_alloc(struct mlxsw_sp
*mlxsw_sp
,
480 struct mlxsw_sp_lpm_tree
*lpm_tree
)
482 char ralta_pl
[MLXSW_REG_RALTA_LEN
];
484 mlxsw_reg_ralta_pack(ralta_pl
, true,
485 (enum mlxsw_reg_ralxx_protocol
) lpm_tree
->proto
,
487 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ralta
), ralta_pl
);
490 static int mlxsw_sp_lpm_tree_free(struct mlxsw_sp
*mlxsw_sp
,
491 struct mlxsw_sp_lpm_tree
*lpm_tree
)
493 char ralta_pl
[MLXSW_REG_RALTA_LEN
];
495 mlxsw_reg_ralta_pack(ralta_pl
, false,
496 (enum mlxsw_reg_ralxx_protocol
) lpm_tree
->proto
,
498 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ralta
), ralta_pl
);
502 mlxsw_sp_lpm_tree_left_struct_set(struct mlxsw_sp
*mlxsw_sp
,
503 struct mlxsw_sp_prefix_usage
*prefix_usage
,
504 struct mlxsw_sp_lpm_tree
*lpm_tree
)
506 char ralst_pl
[MLXSW_REG_RALST_LEN
];
509 u8 last_prefix
= MLXSW_REG_RALST_BIN_NO_CHILD
;
511 mlxsw_sp_prefix_usage_for_each(prefix
, prefix_usage
)
514 mlxsw_reg_ralst_pack(ralst_pl
, root_bin
, lpm_tree
->id
);
515 mlxsw_sp_prefix_usage_for_each(prefix
, prefix_usage
) {
518 mlxsw_reg_ralst_bin_pack(ralst_pl
, prefix
, last_prefix
,
519 MLXSW_REG_RALST_BIN_NO_CHILD
);
520 last_prefix
= prefix
;
522 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ralst
), ralst_pl
);
525 static struct mlxsw_sp_lpm_tree
*
526 mlxsw_sp_lpm_tree_create(struct mlxsw_sp
*mlxsw_sp
,
527 struct mlxsw_sp_prefix_usage
*prefix_usage
,
528 enum mlxsw_sp_l3proto proto
)
530 struct mlxsw_sp_lpm_tree
*lpm_tree
;
533 lpm_tree
= mlxsw_sp_lpm_tree_find_unused(mlxsw_sp
);
535 return ERR_PTR(-EBUSY
);
536 lpm_tree
->proto
= proto
;
537 err
= mlxsw_sp_lpm_tree_alloc(mlxsw_sp
, lpm_tree
);
541 err
= mlxsw_sp_lpm_tree_left_struct_set(mlxsw_sp
, prefix_usage
,
544 goto err_left_struct_set
;
545 memcpy(&lpm_tree
->prefix_usage
, prefix_usage
,
546 sizeof(lpm_tree
->prefix_usage
));
550 mlxsw_sp_lpm_tree_free(mlxsw_sp
, lpm_tree
);
554 static int mlxsw_sp_lpm_tree_destroy(struct mlxsw_sp
*mlxsw_sp
,
555 struct mlxsw_sp_lpm_tree
*lpm_tree
)
557 return mlxsw_sp_lpm_tree_free(mlxsw_sp
, lpm_tree
);
560 static struct mlxsw_sp_lpm_tree
*
561 mlxsw_sp_lpm_tree_get(struct mlxsw_sp
*mlxsw_sp
,
562 struct mlxsw_sp_prefix_usage
*prefix_usage
,
563 enum mlxsw_sp_l3proto proto
)
565 struct mlxsw_sp_lpm_tree
*lpm_tree
;
568 for (i
= 0; i
< mlxsw_sp
->router
->lpm
.tree_count
; i
++) {
569 lpm_tree
= &mlxsw_sp
->router
->lpm
.trees
[i
];
570 if (lpm_tree
->ref_count
!= 0 &&
571 lpm_tree
->proto
== proto
&&
572 mlxsw_sp_prefix_usage_eq(&lpm_tree
->prefix_usage
,
576 lpm_tree
= mlxsw_sp_lpm_tree_create(mlxsw_sp
, prefix_usage
,
578 if (IS_ERR(lpm_tree
))
582 lpm_tree
->ref_count
++;
586 static int mlxsw_sp_lpm_tree_put(struct mlxsw_sp
*mlxsw_sp
,
587 struct mlxsw_sp_lpm_tree
*lpm_tree
)
589 if (--lpm_tree
->ref_count
== 0)
590 return mlxsw_sp_lpm_tree_destroy(mlxsw_sp
, lpm_tree
);
594 #define MLXSW_SP_LPM_TREE_MIN 1 /* tree 0 is reserved */
596 static int mlxsw_sp_lpm_init(struct mlxsw_sp
*mlxsw_sp
)
598 struct mlxsw_sp_lpm_tree
*lpm_tree
;
602 if (!MLXSW_CORE_RES_VALID(mlxsw_sp
->core
, MAX_LPM_TREES
))
605 max_trees
= MLXSW_CORE_RES_GET(mlxsw_sp
->core
, MAX_LPM_TREES
);
606 mlxsw_sp
->router
->lpm
.tree_count
= max_trees
- MLXSW_SP_LPM_TREE_MIN
;
607 mlxsw_sp
->router
->lpm
.trees
= kcalloc(mlxsw_sp
->router
->lpm
.tree_count
,
608 sizeof(struct mlxsw_sp_lpm_tree
),
610 if (!mlxsw_sp
->router
->lpm
.trees
)
613 for (i
= 0; i
< mlxsw_sp
->router
->lpm
.tree_count
; i
++) {
614 lpm_tree
= &mlxsw_sp
->router
->lpm
.trees
[i
];
615 lpm_tree
->id
= i
+ MLXSW_SP_LPM_TREE_MIN
;
621 static void mlxsw_sp_lpm_fini(struct mlxsw_sp
*mlxsw_sp
)
623 kfree(mlxsw_sp
->router
->lpm
.trees
);
626 static bool mlxsw_sp_vr_is_used(const struct mlxsw_sp_vr
*vr
)
631 static struct mlxsw_sp_vr
*mlxsw_sp_vr_find_unused(struct mlxsw_sp
*mlxsw_sp
)
633 struct mlxsw_sp_vr
*vr
;
636 for (i
= 0; i
< MLXSW_CORE_RES_GET(mlxsw_sp
->core
, MAX_VRS
); i
++) {
637 vr
= &mlxsw_sp
->router
->vrs
[i
];
638 if (!mlxsw_sp_vr_is_used(vr
))
644 static int mlxsw_sp_vr_lpm_tree_bind(struct mlxsw_sp
*mlxsw_sp
,
645 const struct mlxsw_sp_fib
*fib
)
647 char raltb_pl
[MLXSW_REG_RALTB_LEN
];
649 mlxsw_reg_raltb_pack(raltb_pl
, fib
->vr
->id
,
650 (enum mlxsw_reg_ralxx_protocol
) fib
->proto
,
652 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(raltb
), raltb_pl
);
655 static int mlxsw_sp_vr_lpm_tree_unbind(struct mlxsw_sp
*mlxsw_sp
,
656 const struct mlxsw_sp_fib
*fib
)
658 char raltb_pl
[MLXSW_REG_RALTB_LEN
];
660 /* Bind to tree 0 which is default */
661 mlxsw_reg_raltb_pack(raltb_pl
, fib
->vr
->id
,
662 (enum mlxsw_reg_ralxx_protocol
) fib
->proto
, 0);
663 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(raltb
), raltb_pl
);
666 static u32
mlxsw_sp_fix_tb_id(u32 tb_id
)
668 /* For our purpose, squash main and local table into one */
669 if (tb_id
== RT_TABLE_LOCAL
)
670 tb_id
= RT_TABLE_MAIN
;
674 static struct mlxsw_sp_vr
*mlxsw_sp_vr_find(struct mlxsw_sp
*mlxsw_sp
,
677 struct mlxsw_sp_vr
*vr
;
680 tb_id
= mlxsw_sp_fix_tb_id(tb_id
);
682 for (i
= 0; i
< MLXSW_CORE_RES_GET(mlxsw_sp
->core
, MAX_VRS
); i
++) {
683 vr
= &mlxsw_sp
->router
->vrs
[i
];
684 if (mlxsw_sp_vr_is_used(vr
) && vr
->tb_id
== tb_id
)
690 static struct mlxsw_sp_fib
*mlxsw_sp_vr_fib(const struct mlxsw_sp_vr
*vr
,
691 enum mlxsw_sp_l3proto proto
)
694 case MLXSW_SP_L3_PROTO_IPV4
:
696 case MLXSW_SP_L3_PROTO_IPV6
:
702 static struct mlxsw_sp_vr
*mlxsw_sp_vr_create(struct mlxsw_sp
*mlxsw_sp
,
705 struct mlxsw_sp_vr
*vr
;
707 vr
= mlxsw_sp_vr_find_unused(mlxsw_sp
);
709 return ERR_PTR(-EBUSY
);
710 vr
->fib4
= mlxsw_sp_fib_create(vr
, MLXSW_SP_L3_PROTO_IPV4
);
711 if (IS_ERR(vr
->fib4
))
712 return ERR_CAST(vr
->fib4
);
717 static void mlxsw_sp_vr_destroy(struct mlxsw_sp_vr
*vr
)
719 mlxsw_sp_fib_destroy(vr
->fib4
);
724 mlxsw_sp_vr_lpm_tree_check(struct mlxsw_sp
*mlxsw_sp
, struct mlxsw_sp_fib
*fib
,
725 struct mlxsw_sp_prefix_usage
*req_prefix_usage
)
727 struct mlxsw_sp_lpm_tree
*lpm_tree
= fib
->lpm_tree
;
728 struct mlxsw_sp_lpm_tree
*new_tree
;
731 if (mlxsw_sp_prefix_usage_eq(req_prefix_usage
, &lpm_tree
->prefix_usage
))
734 new_tree
= mlxsw_sp_lpm_tree_get(mlxsw_sp
, req_prefix_usage
,
736 if (IS_ERR(new_tree
)) {
737 /* We failed to get a tree according to the required
738 * prefix usage. However, the current tree might be still good
739 * for us if our requirement is subset of the prefixes used
742 if (mlxsw_sp_prefix_usage_subset(req_prefix_usage
,
743 &lpm_tree
->prefix_usage
))
745 return PTR_ERR(new_tree
);
748 /* Prevent packet loss by overwriting existing binding */
749 fib
->lpm_tree
= new_tree
;
750 err
= mlxsw_sp_vr_lpm_tree_bind(mlxsw_sp
, fib
);
753 mlxsw_sp_lpm_tree_put(mlxsw_sp
, lpm_tree
);
758 fib
->lpm_tree
= lpm_tree
;
759 mlxsw_sp_lpm_tree_put(mlxsw_sp
, new_tree
);
763 static struct mlxsw_sp_vr
*mlxsw_sp_vr_get(struct mlxsw_sp
*mlxsw_sp
, u32 tb_id
)
765 struct mlxsw_sp_vr
*vr
;
767 tb_id
= mlxsw_sp_fix_tb_id(tb_id
);
768 vr
= mlxsw_sp_vr_find(mlxsw_sp
, tb_id
);
770 vr
= mlxsw_sp_vr_create(mlxsw_sp
, tb_id
);
774 static void mlxsw_sp_vr_put(struct mlxsw_sp_vr
*vr
)
776 if (!vr
->rif_count
&& list_empty(&vr
->fib4
->node_list
))
777 mlxsw_sp_vr_destroy(vr
);
780 static int mlxsw_sp_vrs_init(struct mlxsw_sp
*mlxsw_sp
)
782 struct mlxsw_sp_vr
*vr
;
786 if (!MLXSW_CORE_RES_VALID(mlxsw_sp
->core
, MAX_VRS
))
789 max_vrs
= MLXSW_CORE_RES_GET(mlxsw_sp
->core
, MAX_VRS
);
790 mlxsw_sp
->router
->vrs
= kcalloc(max_vrs
, sizeof(struct mlxsw_sp_vr
),
792 if (!mlxsw_sp
->router
->vrs
)
795 for (i
= 0; i
< max_vrs
; i
++) {
796 vr
= &mlxsw_sp
->router
->vrs
[i
];
803 static void mlxsw_sp_router_fib_flush(struct mlxsw_sp
*mlxsw_sp
);
805 static void mlxsw_sp_vrs_fini(struct mlxsw_sp
*mlxsw_sp
)
807 /* At this stage we're guaranteed not to have new incoming
808 * FIB notifications and the work queue is free from FIBs
809 * sitting on top of mlxsw netdevs. However, we can still
810 * have other FIBs queued. Flush the queue before flushing
811 * the device's tables. No need for locks, as we're the only
814 mlxsw_core_flush_owq();
815 mlxsw_sp_router_fib_flush(mlxsw_sp
);
816 kfree(mlxsw_sp
->router
->vrs
);
819 struct mlxsw_sp_neigh_key
{
823 struct mlxsw_sp_neigh_entry
{
824 struct list_head rif_list_node
;
825 struct rhash_head ht_node
;
826 struct mlxsw_sp_neigh_key key
;
829 unsigned char ha
[ETH_ALEN
];
830 struct list_head nexthop_list
; /* list of nexthops using
833 struct list_head nexthop_neighs_list_node
;
836 static const struct rhashtable_params mlxsw_sp_neigh_ht_params
= {
837 .key_offset
= offsetof(struct mlxsw_sp_neigh_entry
, key
),
838 .head_offset
= offsetof(struct mlxsw_sp_neigh_entry
, ht_node
),
839 .key_len
= sizeof(struct mlxsw_sp_neigh_key
),
842 static struct mlxsw_sp_neigh_entry
*
843 mlxsw_sp_neigh_entry_alloc(struct mlxsw_sp
*mlxsw_sp
, struct neighbour
*n
,
846 struct mlxsw_sp_neigh_entry
*neigh_entry
;
848 neigh_entry
= kzalloc(sizeof(*neigh_entry
), GFP_KERNEL
);
852 neigh_entry
->key
.n
= n
;
853 neigh_entry
->rif
= rif
;
854 INIT_LIST_HEAD(&neigh_entry
->nexthop_list
);
859 static void mlxsw_sp_neigh_entry_free(struct mlxsw_sp_neigh_entry
*neigh_entry
)
865 mlxsw_sp_neigh_entry_insert(struct mlxsw_sp
*mlxsw_sp
,
866 struct mlxsw_sp_neigh_entry
*neigh_entry
)
868 return rhashtable_insert_fast(&mlxsw_sp
->router
->neigh_ht
,
869 &neigh_entry
->ht_node
,
870 mlxsw_sp_neigh_ht_params
);
874 mlxsw_sp_neigh_entry_remove(struct mlxsw_sp
*mlxsw_sp
,
875 struct mlxsw_sp_neigh_entry
*neigh_entry
)
877 rhashtable_remove_fast(&mlxsw_sp
->router
->neigh_ht
,
878 &neigh_entry
->ht_node
,
879 mlxsw_sp_neigh_ht_params
);
882 static struct mlxsw_sp_neigh_entry
*
883 mlxsw_sp_neigh_entry_create(struct mlxsw_sp
*mlxsw_sp
, struct neighbour
*n
)
885 struct mlxsw_sp_neigh_entry
*neigh_entry
;
886 struct mlxsw_sp_rif
*rif
;
889 rif
= mlxsw_sp_rif_find_by_dev(mlxsw_sp
, n
->dev
);
891 return ERR_PTR(-EINVAL
);
893 neigh_entry
= mlxsw_sp_neigh_entry_alloc(mlxsw_sp
, n
, rif
->rif_index
);
895 return ERR_PTR(-ENOMEM
);
897 err
= mlxsw_sp_neigh_entry_insert(mlxsw_sp
, neigh_entry
);
899 goto err_neigh_entry_insert
;
901 list_add(&neigh_entry
->rif_list_node
, &rif
->neigh_list
);
905 err_neigh_entry_insert
:
906 mlxsw_sp_neigh_entry_free(neigh_entry
);
911 mlxsw_sp_neigh_entry_destroy(struct mlxsw_sp
*mlxsw_sp
,
912 struct mlxsw_sp_neigh_entry
*neigh_entry
)
914 list_del(&neigh_entry
->rif_list_node
);
915 mlxsw_sp_neigh_entry_remove(mlxsw_sp
, neigh_entry
);
916 mlxsw_sp_neigh_entry_free(neigh_entry
);
919 static struct mlxsw_sp_neigh_entry
*
920 mlxsw_sp_neigh_entry_lookup(struct mlxsw_sp
*mlxsw_sp
, struct neighbour
*n
)
922 struct mlxsw_sp_neigh_key key
;
925 return rhashtable_lookup_fast(&mlxsw_sp
->router
->neigh_ht
,
926 &key
, mlxsw_sp_neigh_ht_params
);
930 mlxsw_sp_router_neighs_update_interval_init(struct mlxsw_sp
*mlxsw_sp
)
932 unsigned long interval
= NEIGH_VAR(&arp_tbl
.parms
, DELAY_PROBE_TIME
);
934 mlxsw_sp
->router
->neighs_update
.interval
= jiffies_to_msecs(interval
);
937 static void mlxsw_sp_router_neigh_ent_ipv4_process(struct mlxsw_sp
*mlxsw_sp
,
941 struct net_device
*dev
;
947 mlxsw_reg_rauhtd_ent_ipv4_unpack(rauhtd_pl
, ent_index
, &rif
, &dip
);
949 if (!mlxsw_sp
->router
->rifs
[rif
]) {
950 dev_err_ratelimited(mlxsw_sp
->bus_info
->dev
, "Incorrect RIF in neighbour entry\n");
955 dev
= mlxsw_sp
->router
->rifs
[rif
]->dev
;
956 n
= neigh_lookup(&arp_tbl
, &dipn
, dev
);
958 netdev_err(dev
, "Failed to find matching neighbour for IP=%pI4h\n",
963 netdev_dbg(dev
, "Updating neighbour with IP=%pI4h\n", &dip
);
964 neigh_event_send(n
, NULL
);
968 static void mlxsw_sp_router_neigh_rec_ipv4_process(struct mlxsw_sp
*mlxsw_sp
,
975 num_entries
= mlxsw_reg_rauhtd_ipv4_rec_num_entries_get(rauhtd_pl
,
977 /* Hardware starts counting at 0, so add 1. */
980 /* Each record consists of several neighbour entries. */
981 for (i
= 0; i
< num_entries
; i
++) {
984 ent_index
= rec_index
* MLXSW_REG_RAUHTD_IPV4_ENT_PER_REC
+ i
;
985 mlxsw_sp_router_neigh_ent_ipv4_process(mlxsw_sp
, rauhtd_pl
,
991 static void mlxsw_sp_router_neigh_rec_process(struct mlxsw_sp
*mlxsw_sp
,
992 char *rauhtd_pl
, int rec_index
)
994 switch (mlxsw_reg_rauhtd_rec_type_get(rauhtd_pl
, rec_index
)) {
995 case MLXSW_REG_RAUHTD_TYPE_IPV4
:
996 mlxsw_sp_router_neigh_rec_ipv4_process(mlxsw_sp
, rauhtd_pl
,
999 case MLXSW_REG_RAUHTD_TYPE_IPV6
:
1005 static bool mlxsw_sp_router_rauhtd_is_full(char *rauhtd_pl
)
1007 u8 num_rec
, last_rec_index
, num_entries
;
1009 num_rec
= mlxsw_reg_rauhtd_num_rec_get(rauhtd_pl
);
1010 last_rec_index
= num_rec
- 1;
1012 if (num_rec
< MLXSW_REG_RAUHTD_REC_MAX_NUM
)
1014 if (mlxsw_reg_rauhtd_rec_type_get(rauhtd_pl
, last_rec_index
) ==
1015 MLXSW_REG_RAUHTD_TYPE_IPV6
)
1018 num_entries
= mlxsw_reg_rauhtd_ipv4_rec_num_entries_get(rauhtd_pl
,
1020 if (++num_entries
== MLXSW_REG_RAUHTD_IPV4_ENT_PER_REC
)
1025 static int mlxsw_sp_router_neighs_update_rauhtd(struct mlxsw_sp
*mlxsw_sp
)
1031 rauhtd_pl
= kmalloc(MLXSW_REG_RAUHTD_LEN
, GFP_KERNEL
);
1035 /* Make sure the neighbour's netdev isn't removed in the
1040 mlxsw_reg_rauhtd_pack(rauhtd_pl
, MLXSW_REG_RAUHTD_TYPE_IPV4
);
1041 err
= mlxsw_reg_query(mlxsw_sp
->core
, MLXSW_REG(rauhtd
),
1044 dev_err_ratelimited(mlxsw_sp
->bus_info
->dev
, "Failed to dump neighbour talbe\n");
1047 num_rec
= mlxsw_reg_rauhtd_num_rec_get(rauhtd_pl
);
1048 for (i
= 0; i
< num_rec
; i
++)
1049 mlxsw_sp_router_neigh_rec_process(mlxsw_sp
, rauhtd_pl
,
1051 } while (mlxsw_sp_router_rauhtd_is_full(rauhtd_pl
));
1058 static void mlxsw_sp_router_neighs_update_nh(struct mlxsw_sp
*mlxsw_sp
)
1060 struct mlxsw_sp_neigh_entry
*neigh_entry
;
1062 /* Take RTNL mutex here to prevent lists from changes */
1064 list_for_each_entry(neigh_entry
, &mlxsw_sp
->router
->nexthop_neighs_list
,
1065 nexthop_neighs_list_node
)
1066 /* If this neigh have nexthops, make the kernel think this neigh
1067 * is active regardless of the traffic.
1069 neigh_event_send(neigh_entry
->key
.n
, NULL
);
1074 mlxsw_sp_router_neighs_update_work_schedule(struct mlxsw_sp
*mlxsw_sp
)
1076 unsigned long interval
= mlxsw_sp
->router
->neighs_update
.interval
;
1078 mlxsw_core_schedule_dw(&mlxsw_sp
->router
->neighs_update
.dw
,
1079 msecs_to_jiffies(interval
));
1082 static void mlxsw_sp_router_neighs_update_work(struct work_struct
*work
)
1084 struct mlxsw_sp_router
*router
;
1087 router
= container_of(work
, struct mlxsw_sp_router
,
1088 neighs_update
.dw
.work
);
1089 err
= mlxsw_sp_router_neighs_update_rauhtd(router
->mlxsw_sp
);
1091 dev_err(router
->mlxsw_sp
->bus_info
->dev
, "Could not update kernel for neigh activity");
1093 mlxsw_sp_router_neighs_update_nh(router
->mlxsw_sp
);
1095 mlxsw_sp_router_neighs_update_work_schedule(router
->mlxsw_sp
);
1098 static void mlxsw_sp_router_probe_unresolved_nexthops(struct work_struct
*work
)
1100 struct mlxsw_sp_neigh_entry
*neigh_entry
;
1101 struct mlxsw_sp_router
*router
;
1103 router
= container_of(work
, struct mlxsw_sp_router
,
1104 nexthop_probe_dw
.work
);
1105 /* Iterate over nexthop neighbours, find those who are unresolved and
1106 * send arp on them. This solves the chicken-egg problem when
1107 * the nexthop wouldn't get offloaded until the neighbor is resolved
1108 * but it wouldn't get resolved ever in case traffic is flowing in HW
1109 * using different nexthop.
1111 * Take RTNL mutex here to prevent lists from changes.
1114 list_for_each_entry(neigh_entry
, &router
->nexthop_neighs_list
,
1115 nexthop_neighs_list_node
)
1116 if (!neigh_entry
->connected
)
1117 neigh_event_send(neigh_entry
->key
.n
, NULL
);
1120 mlxsw_core_schedule_dw(&router
->nexthop_probe_dw
,
1121 MLXSW_SP_UNRESOLVED_NH_PROBE_INTERVAL
);
1125 mlxsw_sp_nexthop_neigh_update(struct mlxsw_sp
*mlxsw_sp
,
1126 struct mlxsw_sp_neigh_entry
*neigh_entry
,
1129 static enum mlxsw_reg_rauht_op
mlxsw_sp_rauht_op(bool adding
)
1131 return adding
? MLXSW_REG_RAUHT_OP_WRITE_ADD
:
1132 MLXSW_REG_RAUHT_OP_WRITE_DELETE
;
1136 mlxsw_sp_router_neigh_entry_op4(struct mlxsw_sp
*mlxsw_sp
,
1137 struct mlxsw_sp_neigh_entry
*neigh_entry
,
1138 enum mlxsw_reg_rauht_op op
)
1140 struct neighbour
*n
= neigh_entry
->key
.n
;
1141 u32 dip
= ntohl(*((__be32
*) n
->primary_key
));
1142 char rauht_pl
[MLXSW_REG_RAUHT_LEN
];
1144 mlxsw_reg_rauht_pack4(rauht_pl
, op
, neigh_entry
->rif
, neigh_entry
->ha
,
1146 mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(rauht
), rauht_pl
);
1150 mlxsw_sp_neigh_entry_update(struct mlxsw_sp
*mlxsw_sp
,
1151 struct mlxsw_sp_neigh_entry
*neigh_entry
,
1154 if (!adding
&& !neigh_entry
->connected
)
1156 neigh_entry
->connected
= adding
;
1157 if (neigh_entry
->key
.n
->tbl
== &arp_tbl
)
1158 mlxsw_sp_router_neigh_entry_op4(mlxsw_sp
, neigh_entry
,
1159 mlxsw_sp_rauht_op(adding
));
1164 struct mlxsw_sp_neigh_event_work
{
1165 struct work_struct work
;
1166 struct mlxsw_sp
*mlxsw_sp
;
1167 struct neighbour
*n
;
1170 static void mlxsw_sp_router_neigh_event_work(struct work_struct
*work
)
1172 struct mlxsw_sp_neigh_event_work
*neigh_work
=
1173 container_of(work
, struct mlxsw_sp_neigh_event_work
, work
);
1174 struct mlxsw_sp
*mlxsw_sp
= neigh_work
->mlxsw_sp
;
1175 struct mlxsw_sp_neigh_entry
*neigh_entry
;
1176 struct neighbour
*n
= neigh_work
->n
;
1177 unsigned char ha
[ETH_ALEN
];
1178 bool entry_connected
;
1181 /* If these parameters are changed after we release the lock,
1182 * then we are guaranteed to receive another event letting us
1185 read_lock_bh(&n
->lock
);
1186 memcpy(ha
, n
->ha
, ETH_ALEN
);
1187 nud_state
= n
->nud_state
;
1189 read_unlock_bh(&n
->lock
);
1192 entry_connected
= nud_state
& NUD_VALID
&& !dead
;
1193 neigh_entry
= mlxsw_sp_neigh_entry_lookup(mlxsw_sp
, n
);
1194 if (!entry_connected
&& !neigh_entry
)
1197 neigh_entry
= mlxsw_sp_neigh_entry_create(mlxsw_sp
, n
);
1198 if (IS_ERR(neigh_entry
))
1202 memcpy(neigh_entry
->ha
, ha
, ETH_ALEN
);
1203 mlxsw_sp_neigh_entry_update(mlxsw_sp
, neigh_entry
, entry_connected
);
1204 mlxsw_sp_nexthop_neigh_update(mlxsw_sp
, neigh_entry
, !entry_connected
);
1206 if (!neigh_entry
->connected
&& list_empty(&neigh_entry
->nexthop_list
))
1207 mlxsw_sp_neigh_entry_destroy(mlxsw_sp
, neigh_entry
);
1215 int mlxsw_sp_router_netevent_event(struct notifier_block
*unused
,
1216 unsigned long event
, void *ptr
)
1218 struct mlxsw_sp_neigh_event_work
*neigh_work
;
1219 struct mlxsw_sp_port
*mlxsw_sp_port
;
1220 struct mlxsw_sp
*mlxsw_sp
;
1221 unsigned long interval
;
1222 struct neigh_parms
*p
;
1223 struct neighbour
*n
;
1226 case NETEVENT_DELAY_PROBE_TIME_UPDATE
:
1229 /* We don't care about changes in the default table. */
1230 if (!p
->dev
|| p
->tbl
!= &arp_tbl
)
1233 /* We are in atomic context and can't take RTNL mutex,
1234 * so use RCU variant to walk the device chain.
1236 mlxsw_sp_port
= mlxsw_sp_port_lower_dev_hold(p
->dev
);
1240 mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
1241 interval
= jiffies_to_msecs(NEIGH_VAR(p
, DELAY_PROBE_TIME
));
1242 mlxsw_sp
->router
->neighs_update
.interval
= interval
;
1244 mlxsw_sp_port_dev_put(mlxsw_sp_port
);
1246 case NETEVENT_NEIGH_UPDATE
:
1249 if (n
->tbl
!= &arp_tbl
)
1252 mlxsw_sp_port
= mlxsw_sp_port_lower_dev_hold(n
->dev
);
1256 neigh_work
= kzalloc(sizeof(*neigh_work
), GFP_ATOMIC
);
1258 mlxsw_sp_port_dev_put(mlxsw_sp_port
);
1262 INIT_WORK(&neigh_work
->work
, mlxsw_sp_router_neigh_event_work
);
1263 neigh_work
->mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
1266 /* Take a reference to ensure the neighbour won't be
1267 * destructed until we drop the reference in delayed
1271 mlxsw_core_schedule_work(&neigh_work
->work
);
1272 mlxsw_sp_port_dev_put(mlxsw_sp_port
);
1279 static int mlxsw_sp_neigh_init(struct mlxsw_sp
*mlxsw_sp
)
1283 err
= rhashtable_init(&mlxsw_sp
->router
->neigh_ht
,
1284 &mlxsw_sp_neigh_ht_params
);
1288 /* Initialize the polling interval according to the default
1291 mlxsw_sp_router_neighs_update_interval_init(mlxsw_sp
);
1293 /* Create the delayed works for the activity_update */
1294 INIT_DELAYED_WORK(&mlxsw_sp
->router
->neighs_update
.dw
,
1295 mlxsw_sp_router_neighs_update_work
);
1296 INIT_DELAYED_WORK(&mlxsw_sp
->router
->nexthop_probe_dw
,
1297 mlxsw_sp_router_probe_unresolved_nexthops
);
1298 mlxsw_core_schedule_dw(&mlxsw_sp
->router
->neighs_update
.dw
, 0);
1299 mlxsw_core_schedule_dw(&mlxsw_sp
->router
->nexthop_probe_dw
, 0);
1303 static void mlxsw_sp_neigh_fini(struct mlxsw_sp
*mlxsw_sp
)
1305 cancel_delayed_work_sync(&mlxsw_sp
->router
->neighs_update
.dw
);
1306 cancel_delayed_work_sync(&mlxsw_sp
->router
->nexthop_probe_dw
);
1307 rhashtable_destroy(&mlxsw_sp
->router
->neigh_ht
);
1310 static int mlxsw_sp_neigh_rif_flush(struct mlxsw_sp
*mlxsw_sp
,
1311 const struct mlxsw_sp_rif
*rif
)
1313 char rauht_pl
[MLXSW_REG_RAUHT_LEN
];
1315 mlxsw_reg_rauht_pack(rauht_pl
, MLXSW_REG_RAUHT_OP_WRITE_DELETE_ALL
,
1316 rif
->rif_index
, rif
->addr
);
1317 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(rauht
), rauht_pl
);
1320 static void mlxsw_sp_neigh_rif_gone_sync(struct mlxsw_sp
*mlxsw_sp
,
1321 struct mlxsw_sp_rif
*rif
)
1323 struct mlxsw_sp_neigh_entry
*neigh_entry
, *tmp
;
1325 mlxsw_sp_neigh_rif_flush(mlxsw_sp
, rif
);
1326 list_for_each_entry_safe(neigh_entry
, tmp
, &rif
->neigh_list
,
1328 mlxsw_sp_neigh_entry_destroy(mlxsw_sp
, neigh_entry
);
1331 struct mlxsw_sp_nexthop_key
{
1332 struct fib_nh
*fib_nh
;
1335 struct mlxsw_sp_nexthop
{
1336 struct list_head neigh_list_node
; /* member of neigh entry list */
1337 struct list_head rif_list_node
;
1338 struct mlxsw_sp_nexthop_group
*nh_grp
; /* pointer back to the group
1341 struct rhash_head ht_node
;
1342 struct mlxsw_sp_nexthop_key key
;
1343 struct mlxsw_sp_rif
*rif
;
1344 u8 should_offload
:1, /* set indicates this neigh is connected and
1345 * should be put to KVD linear area of this group.
1347 offloaded
:1, /* set in case the neigh is actually put into
1348 * KVD linear area of this group.
1350 update
:1; /* set indicates that MAC of this neigh should be
1353 struct mlxsw_sp_neigh_entry
*neigh_entry
;
1356 struct mlxsw_sp_nexthop_group_key
{
1357 struct fib_info
*fi
;
1360 struct mlxsw_sp_nexthop_group
{
1361 struct rhash_head ht_node
;
1362 struct list_head fib_list
; /* list of fib entries that use this group */
1363 struct mlxsw_sp_nexthop_group_key key
;
1364 u8 adj_index_valid
:1,
1365 gateway
:1; /* routes using the group use a gateway */
1369 struct mlxsw_sp_nexthop nexthops
[0];
1370 #define nh_rif nexthops[0].rif
1373 static const struct rhashtable_params mlxsw_sp_nexthop_group_ht_params
= {
1374 .key_offset
= offsetof(struct mlxsw_sp_nexthop_group
, key
),
1375 .head_offset
= offsetof(struct mlxsw_sp_nexthop_group
, ht_node
),
1376 .key_len
= sizeof(struct mlxsw_sp_nexthop_group_key
),
1379 static int mlxsw_sp_nexthop_group_insert(struct mlxsw_sp
*mlxsw_sp
,
1380 struct mlxsw_sp_nexthop_group
*nh_grp
)
1382 return rhashtable_insert_fast(&mlxsw_sp
->router
->nexthop_group_ht
,
1384 mlxsw_sp_nexthop_group_ht_params
);
1387 static void mlxsw_sp_nexthop_group_remove(struct mlxsw_sp
*mlxsw_sp
,
1388 struct mlxsw_sp_nexthop_group
*nh_grp
)
1390 rhashtable_remove_fast(&mlxsw_sp
->router
->nexthop_group_ht
,
1392 mlxsw_sp_nexthop_group_ht_params
);
1395 static struct mlxsw_sp_nexthop_group
*
1396 mlxsw_sp_nexthop_group_lookup(struct mlxsw_sp
*mlxsw_sp
,
1397 struct mlxsw_sp_nexthop_group_key key
)
1399 return rhashtable_lookup_fast(&mlxsw_sp
->router
->nexthop_group_ht
, &key
,
1400 mlxsw_sp_nexthop_group_ht_params
);
1403 static const struct rhashtable_params mlxsw_sp_nexthop_ht_params
= {
1404 .key_offset
= offsetof(struct mlxsw_sp_nexthop
, key
),
1405 .head_offset
= offsetof(struct mlxsw_sp_nexthop
, ht_node
),
1406 .key_len
= sizeof(struct mlxsw_sp_nexthop_key
),
1409 static int mlxsw_sp_nexthop_insert(struct mlxsw_sp
*mlxsw_sp
,
1410 struct mlxsw_sp_nexthop
*nh
)
1412 return rhashtable_insert_fast(&mlxsw_sp
->router
->nexthop_ht
,
1413 &nh
->ht_node
, mlxsw_sp_nexthop_ht_params
);
1416 static void mlxsw_sp_nexthop_remove(struct mlxsw_sp
*mlxsw_sp
,
1417 struct mlxsw_sp_nexthop
*nh
)
1419 rhashtable_remove_fast(&mlxsw_sp
->router
->nexthop_ht
, &nh
->ht_node
,
1420 mlxsw_sp_nexthop_ht_params
);
1423 static struct mlxsw_sp_nexthop
*
1424 mlxsw_sp_nexthop_lookup(struct mlxsw_sp
*mlxsw_sp
,
1425 struct mlxsw_sp_nexthop_key key
)
1427 return rhashtable_lookup_fast(&mlxsw_sp
->router
->nexthop_ht
, &key
,
1428 mlxsw_sp_nexthop_ht_params
);
1431 static int mlxsw_sp_adj_index_mass_update_vr(struct mlxsw_sp
*mlxsw_sp
,
1432 const struct mlxsw_sp_fib
*fib
,
1433 u32 adj_index
, u16 ecmp_size
,
1437 char raleu_pl
[MLXSW_REG_RALEU_LEN
];
1439 mlxsw_reg_raleu_pack(raleu_pl
,
1440 (enum mlxsw_reg_ralxx_protocol
) fib
->proto
,
1441 fib
->vr
->id
, adj_index
, ecmp_size
, new_adj_index
,
1443 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(raleu
), raleu_pl
);
1446 static int mlxsw_sp_adj_index_mass_update(struct mlxsw_sp
*mlxsw_sp
,
1447 struct mlxsw_sp_nexthop_group
*nh_grp
,
1448 u32 old_adj_index
, u16 old_ecmp_size
)
1450 struct mlxsw_sp_fib_entry
*fib_entry
;
1451 struct mlxsw_sp_fib
*fib
= NULL
;
1454 list_for_each_entry(fib_entry
, &nh_grp
->fib_list
, nexthop_group_node
) {
1455 if (fib
== fib_entry
->fib_node
->fib
)
1457 fib
= fib_entry
->fib_node
->fib
;
1458 err
= mlxsw_sp_adj_index_mass_update_vr(mlxsw_sp
, fib
,
1469 static int mlxsw_sp_nexthop_mac_update(struct mlxsw_sp
*mlxsw_sp
, u32 adj_index
,
1470 struct mlxsw_sp_nexthop
*nh
)
1472 struct mlxsw_sp_neigh_entry
*neigh_entry
= nh
->neigh_entry
;
1473 char ratr_pl
[MLXSW_REG_RATR_LEN
];
1475 mlxsw_reg_ratr_pack(ratr_pl
, MLXSW_REG_RATR_OP_WRITE_WRITE_ENTRY
,
1476 true, adj_index
, neigh_entry
->rif
);
1477 mlxsw_reg_ratr_eth_entry_pack(ratr_pl
, neigh_entry
->ha
);
1478 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ratr
), ratr_pl
);
1482 mlxsw_sp_nexthop_group_mac_update(struct mlxsw_sp
*mlxsw_sp
,
1483 struct mlxsw_sp_nexthop_group
*nh_grp
,
1486 u32 adj_index
= nh_grp
->adj_index
; /* base */
1487 struct mlxsw_sp_nexthop
*nh
;
1491 for (i
= 0; i
< nh_grp
->count
; i
++) {
1492 nh
= &nh_grp
->nexthops
[i
];
1494 if (!nh
->should_offload
) {
1499 if (nh
->update
|| reallocate
) {
1500 err
= mlxsw_sp_nexthop_mac_update(mlxsw_sp
,
1512 static int mlxsw_sp_fib_entry_update(struct mlxsw_sp
*mlxsw_sp
,
1513 struct mlxsw_sp_fib_entry
*fib_entry
);
1516 mlxsw_sp_nexthop_fib_entries_update(struct mlxsw_sp
*mlxsw_sp
,
1517 struct mlxsw_sp_nexthop_group
*nh_grp
)
1519 struct mlxsw_sp_fib_entry
*fib_entry
;
1522 list_for_each_entry(fib_entry
, &nh_grp
->fib_list
, nexthop_group_node
) {
1523 err
= mlxsw_sp_fib_entry_update(mlxsw_sp
, fib_entry
);
1531 mlxsw_sp_nexthop_group_refresh(struct mlxsw_sp
*mlxsw_sp
,
1532 struct mlxsw_sp_nexthop_group
*nh_grp
)
1534 struct mlxsw_sp_nexthop
*nh
;
1535 bool offload_change
= false;
1538 bool old_adj_index_valid
;
1544 if (!nh_grp
->gateway
) {
1545 mlxsw_sp_nexthop_fib_entries_update(mlxsw_sp
, nh_grp
);
1549 for (i
= 0; i
< nh_grp
->count
; i
++) {
1550 nh
= &nh_grp
->nexthops
[i
];
1552 if (nh
->should_offload
^ nh
->offloaded
) {
1553 offload_change
= true;
1554 if (nh
->should_offload
)
1557 if (nh
->should_offload
)
1560 if (!offload_change
) {
1561 /* Nothing was added or removed, so no need to reallocate. Just
1562 * update MAC on existing adjacency indexes.
1564 err
= mlxsw_sp_nexthop_group_mac_update(mlxsw_sp
, nh_grp
,
1567 dev_warn(mlxsw_sp
->bus_info
->dev
, "Failed to update neigh MAC in adjacency table.\n");
1573 /* No neigh of this group is connected so we just set
1574 * the trap and let everthing flow through kernel.
1578 err
= mlxsw_sp_kvdl_alloc(mlxsw_sp
, ecmp_size
, &adj_index
);
1580 /* We ran out of KVD linear space, just set the
1581 * trap and let everything flow through kernel.
1583 dev_warn(mlxsw_sp
->bus_info
->dev
, "Failed to allocate KVD linear area for nexthop group.\n");
1586 old_adj_index_valid
= nh_grp
->adj_index_valid
;
1587 old_adj_index
= nh_grp
->adj_index
;
1588 old_ecmp_size
= nh_grp
->ecmp_size
;
1589 nh_grp
->adj_index_valid
= 1;
1590 nh_grp
->adj_index
= adj_index
;
1591 nh_grp
->ecmp_size
= ecmp_size
;
1592 err
= mlxsw_sp_nexthop_group_mac_update(mlxsw_sp
, nh_grp
, true);
1594 dev_warn(mlxsw_sp
->bus_info
->dev
, "Failed to update neigh MAC in adjacency table.\n");
1598 if (!old_adj_index_valid
) {
1599 /* The trap was set for fib entries, so we have to call
1600 * fib entry update to unset it and use adjacency index.
1602 err
= mlxsw_sp_nexthop_fib_entries_update(mlxsw_sp
, nh_grp
);
1604 dev_warn(mlxsw_sp
->bus_info
->dev
, "Failed to add adjacency index to fib entries.\n");
1610 err
= mlxsw_sp_adj_index_mass_update(mlxsw_sp
, nh_grp
,
1611 old_adj_index
, old_ecmp_size
);
1612 mlxsw_sp_kvdl_free(mlxsw_sp
, old_adj_index
);
1614 dev_warn(mlxsw_sp
->bus_info
->dev
, "Failed to mass-update adjacency index for nexthop group.\n");
1620 old_adj_index_valid
= nh_grp
->adj_index_valid
;
1621 nh_grp
->adj_index_valid
= 0;
1622 for (i
= 0; i
< nh_grp
->count
; i
++) {
1623 nh
= &nh_grp
->nexthops
[i
];
1626 err
= mlxsw_sp_nexthop_fib_entries_update(mlxsw_sp
, nh_grp
);
1628 dev_warn(mlxsw_sp
->bus_info
->dev
, "Failed to set traps for fib entries.\n");
1629 if (old_adj_index_valid
)
1630 mlxsw_sp_kvdl_free(mlxsw_sp
, nh_grp
->adj_index
);
1633 static void __mlxsw_sp_nexthop_neigh_update(struct mlxsw_sp_nexthop
*nh
,
1636 if (!removing
&& !nh
->should_offload
)
1637 nh
->should_offload
= 1;
1638 else if (removing
&& nh
->offloaded
)
1639 nh
->should_offload
= 0;
1644 mlxsw_sp_nexthop_neigh_update(struct mlxsw_sp
*mlxsw_sp
,
1645 struct mlxsw_sp_neigh_entry
*neigh_entry
,
1648 struct mlxsw_sp_nexthop
*nh
;
1650 list_for_each_entry(nh
, &neigh_entry
->nexthop_list
,
1652 __mlxsw_sp_nexthop_neigh_update(nh
, removing
);
1653 mlxsw_sp_nexthop_group_refresh(mlxsw_sp
, nh
->nh_grp
);
1657 static void mlxsw_sp_nexthop_rif_init(struct mlxsw_sp_nexthop
*nh
,
1658 struct mlxsw_sp_rif
*rif
)
1664 list_add(&nh
->rif_list_node
, &rif
->nexthop_list
);
1667 static void mlxsw_sp_nexthop_rif_fini(struct mlxsw_sp_nexthop
*nh
)
1672 list_del(&nh
->rif_list_node
);
1676 static int mlxsw_sp_nexthop_neigh_init(struct mlxsw_sp
*mlxsw_sp
,
1677 struct mlxsw_sp_nexthop
*nh
)
1679 struct mlxsw_sp_neigh_entry
*neigh_entry
;
1680 struct fib_nh
*fib_nh
= nh
->key
.fib_nh
;
1681 struct neighbour
*n
;
1685 if (!nh
->nh_grp
->gateway
|| nh
->neigh_entry
)
1688 /* Take a reference of neigh here ensuring that neigh would
1689 * not be detructed before the nexthop entry is finished.
1690 * The reference is taken either in neigh_lookup() or
1691 * in neigh_create() in case n is not found.
1693 n
= neigh_lookup(&arp_tbl
, &fib_nh
->nh_gw
, fib_nh
->nh_dev
);
1695 n
= neigh_create(&arp_tbl
, &fib_nh
->nh_gw
, fib_nh
->nh_dev
);
1698 neigh_event_send(n
, NULL
);
1700 neigh_entry
= mlxsw_sp_neigh_entry_lookup(mlxsw_sp
, n
);
1702 neigh_entry
= mlxsw_sp_neigh_entry_create(mlxsw_sp
, n
);
1703 if (IS_ERR(neigh_entry
)) {
1705 goto err_neigh_entry_create
;
1709 /* If that is the first nexthop connected to that neigh, add to
1710 * nexthop_neighs_list
1712 if (list_empty(&neigh_entry
->nexthop_list
))
1713 list_add_tail(&neigh_entry
->nexthop_neighs_list_node
,
1714 &mlxsw_sp
->router
->nexthop_neighs_list
);
1716 nh
->neigh_entry
= neigh_entry
;
1717 list_add_tail(&nh
->neigh_list_node
, &neigh_entry
->nexthop_list
);
1718 read_lock_bh(&n
->lock
);
1719 nud_state
= n
->nud_state
;
1721 read_unlock_bh(&n
->lock
);
1722 __mlxsw_sp_nexthop_neigh_update(nh
, !(nud_state
& NUD_VALID
&& !dead
));
1726 err_neigh_entry_create
:
1731 static void mlxsw_sp_nexthop_neigh_fini(struct mlxsw_sp
*mlxsw_sp
,
1732 struct mlxsw_sp_nexthop
*nh
)
1734 struct mlxsw_sp_neigh_entry
*neigh_entry
= nh
->neigh_entry
;
1735 struct neighbour
*n
;
1739 n
= neigh_entry
->key
.n
;
1741 __mlxsw_sp_nexthop_neigh_update(nh
, true);
1742 list_del(&nh
->neigh_list_node
);
1743 nh
->neigh_entry
= NULL
;
1745 /* If that is the last nexthop connected to that neigh, remove from
1746 * nexthop_neighs_list
1748 if (list_empty(&neigh_entry
->nexthop_list
))
1749 list_del(&neigh_entry
->nexthop_neighs_list_node
);
1751 if (!neigh_entry
->connected
&& list_empty(&neigh_entry
->nexthop_list
))
1752 mlxsw_sp_neigh_entry_destroy(mlxsw_sp
, neigh_entry
);
1757 static int mlxsw_sp_nexthop_init(struct mlxsw_sp
*mlxsw_sp
,
1758 struct mlxsw_sp_nexthop_group
*nh_grp
,
1759 struct mlxsw_sp_nexthop
*nh
,
1760 struct fib_nh
*fib_nh
)
1762 struct net_device
*dev
= fib_nh
->nh_dev
;
1763 struct in_device
*in_dev
;
1764 struct mlxsw_sp_rif
*rif
;
1767 nh
->nh_grp
= nh_grp
;
1768 nh
->key
.fib_nh
= fib_nh
;
1769 err
= mlxsw_sp_nexthop_insert(mlxsw_sp
, nh
);
1776 in_dev
= __in_dev_get_rtnl(dev
);
1777 if (in_dev
&& IN_DEV_IGNORE_ROUTES_WITH_LINKDOWN(in_dev
) &&
1778 fib_nh
->nh_flags
& RTNH_F_LINKDOWN
)
1781 rif
= mlxsw_sp_rif_find_by_dev(mlxsw_sp
, dev
);
1784 mlxsw_sp_nexthop_rif_init(nh
, rif
);
1786 err
= mlxsw_sp_nexthop_neigh_init(mlxsw_sp
, nh
);
1788 goto err_nexthop_neigh_init
;
1792 err_nexthop_neigh_init
:
1793 mlxsw_sp_nexthop_remove(mlxsw_sp
, nh
);
1797 static void mlxsw_sp_nexthop_fini(struct mlxsw_sp
*mlxsw_sp
,
1798 struct mlxsw_sp_nexthop
*nh
)
1800 mlxsw_sp_nexthop_neigh_fini(mlxsw_sp
, nh
);
1801 mlxsw_sp_nexthop_rif_fini(nh
);
1802 mlxsw_sp_nexthop_remove(mlxsw_sp
, nh
);
1805 static void mlxsw_sp_nexthop_event(struct mlxsw_sp
*mlxsw_sp
,
1806 unsigned long event
, struct fib_nh
*fib_nh
)
1808 struct mlxsw_sp_nexthop_key key
;
1809 struct mlxsw_sp_nexthop
*nh
;
1810 struct mlxsw_sp_rif
*rif
;
1812 if (mlxsw_sp
->router
->aborted
)
1815 key
.fib_nh
= fib_nh
;
1816 nh
= mlxsw_sp_nexthop_lookup(mlxsw_sp
, key
);
1817 if (WARN_ON_ONCE(!nh
))
1820 rif
= mlxsw_sp_rif_find_by_dev(mlxsw_sp
, fib_nh
->nh_dev
);
1825 case FIB_EVENT_NH_ADD
:
1826 mlxsw_sp_nexthop_rif_init(nh
, rif
);
1827 mlxsw_sp_nexthop_neigh_init(mlxsw_sp
, nh
);
1829 case FIB_EVENT_NH_DEL
:
1830 mlxsw_sp_nexthop_neigh_fini(mlxsw_sp
, nh
);
1831 mlxsw_sp_nexthop_rif_fini(nh
);
1835 mlxsw_sp_nexthop_group_refresh(mlxsw_sp
, nh
->nh_grp
);
1838 static void mlxsw_sp_nexthop_rif_gone_sync(struct mlxsw_sp
*mlxsw_sp
,
1839 struct mlxsw_sp_rif
*rif
)
1841 struct mlxsw_sp_nexthop
*nh
, *tmp
;
1843 list_for_each_entry_safe(nh
, tmp
, &rif
->nexthop_list
, rif_list_node
) {
1844 mlxsw_sp_nexthop_neigh_fini(mlxsw_sp
, nh
);
1845 mlxsw_sp_nexthop_rif_fini(nh
);
1846 mlxsw_sp_nexthop_group_refresh(mlxsw_sp
, nh
->nh_grp
);
1850 static struct mlxsw_sp_nexthop_group
*
1851 mlxsw_sp_nexthop_group_create(struct mlxsw_sp
*mlxsw_sp
, struct fib_info
*fi
)
1853 struct mlxsw_sp_nexthop_group
*nh_grp
;
1854 struct mlxsw_sp_nexthop
*nh
;
1855 struct fib_nh
*fib_nh
;
1860 alloc_size
= sizeof(*nh_grp
) +
1861 fi
->fib_nhs
* sizeof(struct mlxsw_sp_nexthop
);
1862 nh_grp
= kzalloc(alloc_size
, GFP_KERNEL
);
1864 return ERR_PTR(-ENOMEM
);
1865 INIT_LIST_HEAD(&nh_grp
->fib_list
);
1866 nh_grp
->gateway
= fi
->fib_nh
->nh_scope
== RT_SCOPE_LINK
;
1867 nh_grp
->count
= fi
->fib_nhs
;
1868 nh_grp
->key
.fi
= fi
;
1869 for (i
= 0; i
< nh_grp
->count
; i
++) {
1870 nh
= &nh_grp
->nexthops
[i
];
1871 fib_nh
= &fi
->fib_nh
[i
];
1872 err
= mlxsw_sp_nexthop_init(mlxsw_sp
, nh_grp
, nh
, fib_nh
);
1874 goto err_nexthop_init
;
1876 err
= mlxsw_sp_nexthop_group_insert(mlxsw_sp
, nh_grp
);
1878 goto err_nexthop_group_insert
;
1879 mlxsw_sp_nexthop_group_refresh(mlxsw_sp
, nh_grp
);
1882 err_nexthop_group_insert
:
1884 for (i
--; i
>= 0; i
--) {
1885 nh
= &nh_grp
->nexthops
[i
];
1886 mlxsw_sp_nexthop_fini(mlxsw_sp
, nh
);
1889 return ERR_PTR(err
);
1893 mlxsw_sp_nexthop_group_destroy(struct mlxsw_sp
*mlxsw_sp
,
1894 struct mlxsw_sp_nexthop_group
*nh_grp
)
1896 struct mlxsw_sp_nexthop
*nh
;
1899 mlxsw_sp_nexthop_group_remove(mlxsw_sp
, nh_grp
);
1900 for (i
= 0; i
< nh_grp
->count
; i
++) {
1901 nh
= &nh_grp
->nexthops
[i
];
1902 mlxsw_sp_nexthop_fini(mlxsw_sp
, nh
);
1904 mlxsw_sp_nexthop_group_refresh(mlxsw_sp
, nh_grp
);
1905 WARN_ON_ONCE(nh_grp
->adj_index_valid
);
1909 static int mlxsw_sp_nexthop_group_get(struct mlxsw_sp
*mlxsw_sp
,
1910 struct mlxsw_sp_fib_entry
*fib_entry
,
1911 struct fib_info
*fi
)
1913 struct mlxsw_sp_nexthop_group_key key
;
1914 struct mlxsw_sp_nexthop_group
*nh_grp
;
1917 nh_grp
= mlxsw_sp_nexthop_group_lookup(mlxsw_sp
, key
);
1919 nh_grp
= mlxsw_sp_nexthop_group_create(mlxsw_sp
, fi
);
1921 return PTR_ERR(nh_grp
);
1923 list_add_tail(&fib_entry
->nexthop_group_node
, &nh_grp
->fib_list
);
1924 fib_entry
->nh_group
= nh_grp
;
1928 static void mlxsw_sp_nexthop_group_put(struct mlxsw_sp
*mlxsw_sp
,
1929 struct mlxsw_sp_fib_entry
*fib_entry
)
1931 struct mlxsw_sp_nexthop_group
*nh_grp
= fib_entry
->nh_group
;
1933 list_del(&fib_entry
->nexthop_group_node
);
1934 if (!list_empty(&nh_grp
->fib_list
))
1936 mlxsw_sp_nexthop_group_destroy(mlxsw_sp
, nh_grp
);
1940 mlxsw_sp_fib_entry_should_offload(const struct mlxsw_sp_fib_entry
*fib_entry
)
1942 struct mlxsw_sp_nexthop_group
*nh_group
= fib_entry
->nh_group
;
1944 if (fib_entry
->params
.tos
)
1947 switch (fib_entry
->type
) {
1948 case MLXSW_SP_FIB_ENTRY_TYPE_REMOTE
:
1949 return !!nh_group
->adj_index_valid
;
1950 case MLXSW_SP_FIB_ENTRY_TYPE_LOCAL
:
1951 return !!nh_group
->nh_rif
;
1957 static void mlxsw_sp_fib_entry_offload_set(struct mlxsw_sp_fib_entry
*fib_entry
)
1959 fib_entry
->offloaded
= true;
1961 switch (fib_entry
->fib_node
->fib
->proto
) {
1962 case MLXSW_SP_L3_PROTO_IPV4
:
1963 fib_info_offload_inc(fib_entry
->nh_group
->key
.fi
);
1965 case MLXSW_SP_L3_PROTO_IPV6
:
1971 mlxsw_sp_fib_entry_offload_unset(struct mlxsw_sp_fib_entry
*fib_entry
)
1973 switch (fib_entry
->fib_node
->fib
->proto
) {
1974 case MLXSW_SP_L3_PROTO_IPV4
:
1975 fib_info_offload_dec(fib_entry
->nh_group
->key
.fi
);
1977 case MLXSW_SP_L3_PROTO_IPV6
:
1981 fib_entry
->offloaded
= false;
1985 mlxsw_sp_fib_entry_offload_refresh(struct mlxsw_sp_fib_entry
*fib_entry
,
1986 enum mlxsw_reg_ralue_op op
, int err
)
1989 case MLXSW_REG_RALUE_OP_WRITE_DELETE
:
1990 if (!fib_entry
->offloaded
)
1992 return mlxsw_sp_fib_entry_offload_unset(fib_entry
);
1993 case MLXSW_REG_RALUE_OP_WRITE_WRITE
:
1996 if (mlxsw_sp_fib_entry_should_offload(fib_entry
) &&
1997 !fib_entry
->offloaded
)
1998 mlxsw_sp_fib_entry_offload_set(fib_entry
);
1999 else if (!mlxsw_sp_fib_entry_should_offload(fib_entry
) &&
2000 fib_entry
->offloaded
)
2001 mlxsw_sp_fib_entry_offload_unset(fib_entry
);
2008 static int mlxsw_sp_fib_entry_op4_remote(struct mlxsw_sp
*mlxsw_sp
,
2009 struct mlxsw_sp_fib_entry
*fib_entry
,
2010 enum mlxsw_reg_ralue_op op
)
2012 char ralue_pl
[MLXSW_REG_RALUE_LEN
];
2013 struct mlxsw_sp_fib
*fib
= fib_entry
->fib_node
->fib
;
2014 u32
*p_dip
= (u32
*) fib_entry
->fib_node
->key
.addr
;
2015 enum mlxsw_reg_ralue_trap_action trap_action
;
2017 u32 adjacency_index
= 0;
2020 /* In case the nexthop group adjacency index is valid, use it
2021 * with provided ECMP size. Otherwise, setup trap and pass
2022 * traffic to kernel.
2024 if (mlxsw_sp_fib_entry_should_offload(fib_entry
)) {
2025 trap_action
= MLXSW_REG_RALUE_TRAP_ACTION_NOP
;
2026 adjacency_index
= fib_entry
->nh_group
->adj_index
;
2027 ecmp_size
= fib_entry
->nh_group
->ecmp_size
;
2029 trap_action
= MLXSW_REG_RALUE_TRAP_ACTION_TRAP
;
2030 trap_id
= MLXSW_TRAP_ID_RTR_INGRESS0
;
2033 mlxsw_reg_ralue_pack4(ralue_pl
,
2034 (enum mlxsw_reg_ralxx_protocol
) fib
->proto
, op
,
2035 fib
->vr
->id
, fib_entry
->fib_node
->key
.prefix_len
,
2037 mlxsw_reg_ralue_act_remote_pack(ralue_pl
, trap_action
, trap_id
,
2038 adjacency_index
, ecmp_size
);
2039 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ralue
), ralue_pl
);
2042 static int mlxsw_sp_fib_entry_op4_local(struct mlxsw_sp
*mlxsw_sp
,
2043 struct mlxsw_sp_fib_entry
*fib_entry
,
2044 enum mlxsw_reg_ralue_op op
)
2046 struct mlxsw_sp_rif
*rif
= fib_entry
->nh_group
->nh_rif
;
2047 struct mlxsw_sp_fib
*fib
= fib_entry
->fib_node
->fib
;
2048 enum mlxsw_reg_ralue_trap_action trap_action
;
2049 char ralue_pl
[MLXSW_REG_RALUE_LEN
];
2050 u32
*p_dip
= (u32
*) fib_entry
->fib_node
->key
.addr
;
2054 if (mlxsw_sp_fib_entry_should_offload(fib_entry
)) {
2055 trap_action
= MLXSW_REG_RALUE_TRAP_ACTION_NOP
;
2056 rif_index
= rif
->rif_index
;
2058 trap_action
= MLXSW_REG_RALUE_TRAP_ACTION_TRAP
;
2059 trap_id
= MLXSW_TRAP_ID_RTR_INGRESS0
;
2062 mlxsw_reg_ralue_pack4(ralue_pl
,
2063 (enum mlxsw_reg_ralxx_protocol
) fib
->proto
, op
,
2064 fib
->vr
->id
, fib_entry
->fib_node
->key
.prefix_len
,
2066 mlxsw_reg_ralue_act_local_pack(ralue_pl
, trap_action
, trap_id
,
2068 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ralue
), ralue_pl
);
2071 static int mlxsw_sp_fib_entry_op4_trap(struct mlxsw_sp
*mlxsw_sp
,
2072 struct mlxsw_sp_fib_entry
*fib_entry
,
2073 enum mlxsw_reg_ralue_op op
)
2075 struct mlxsw_sp_fib
*fib
= fib_entry
->fib_node
->fib
;
2076 char ralue_pl
[MLXSW_REG_RALUE_LEN
];
2077 u32
*p_dip
= (u32
*) fib_entry
->fib_node
->key
.addr
;
2079 mlxsw_reg_ralue_pack4(ralue_pl
,
2080 (enum mlxsw_reg_ralxx_protocol
) fib
->proto
, op
,
2081 fib
->vr
->id
, fib_entry
->fib_node
->key
.prefix_len
,
2083 mlxsw_reg_ralue_act_ip2me_pack(ralue_pl
);
2084 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ralue
), ralue_pl
);
2087 static int mlxsw_sp_fib_entry_op4(struct mlxsw_sp
*mlxsw_sp
,
2088 struct mlxsw_sp_fib_entry
*fib_entry
,
2089 enum mlxsw_reg_ralue_op op
)
2091 switch (fib_entry
->type
) {
2092 case MLXSW_SP_FIB_ENTRY_TYPE_REMOTE
:
2093 return mlxsw_sp_fib_entry_op4_remote(mlxsw_sp
, fib_entry
, op
);
2094 case MLXSW_SP_FIB_ENTRY_TYPE_LOCAL
:
2095 return mlxsw_sp_fib_entry_op4_local(mlxsw_sp
, fib_entry
, op
);
2096 case MLXSW_SP_FIB_ENTRY_TYPE_TRAP
:
2097 return mlxsw_sp_fib_entry_op4_trap(mlxsw_sp
, fib_entry
, op
);
2102 static int mlxsw_sp_fib_entry_op(struct mlxsw_sp
*mlxsw_sp
,
2103 struct mlxsw_sp_fib_entry
*fib_entry
,
2104 enum mlxsw_reg_ralue_op op
)
2108 switch (fib_entry
->fib_node
->fib
->proto
) {
2109 case MLXSW_SP_L3_PROTO_IPV4
:
2110 err
= mlxsw_sp_fib_entry_op4(mlxsw_sp
, fib_entry
, op
);
2112 case MLXSW_SP_L3_PROTO_IPV6
:
2115 mlxsw_sp_fib_entry_offload_refresh(fib_entry
, op
, err
);
2119 static int mlxsw_sp_fib_entry_update(struct mlxsw_sp
*mlxsw_sp
,
2120 struct mlxsw_sp_fib_entry
*fib_entry
)
2122 return mlxsw_sp_fib_entry_op(mlxsw_sp
, fib_entry
,
2123 MLXSW_REG_RALUE_OP_WRITE_WRITE
);
2126 static int mlxsw_sp_fib_entry_del(struct mlxsw_sp
*mlxsw_sp
,
2127 struct mlxsw_sp_fib_entry
*fib_entry
)
2129 return mlxsw_sp_fib_entry_op(mlxsw_sp
, fib_entry
,
2130 MLXSW_REG_RALUE_OP_WRITE_DELETE
);
2134 mlxsw_sp_fib4_entry_type_set(struct mlxsw_sp
*mlxsw_sp
,
2135 const struct fib_entry_notifier_info
*fen_info
,
2136 struct mlxsw_sp_fib_entry
*fib_entry
)
2138 struct fib_info
*fi
= fen_info
->fi
;
2140 switch (fen_info
->type
) {
2141 case RTN_BROADCAST
: /* fall through */
2143 fib_entry
->type
= MLXSW_SP_FIB_ENTRY_TYPE_TRAP
;
2145 case RTN_UNREACHABLE
: /* fall through */
2146 case RTN_BLACKHOLE
: /* fall through */
2148 /* Packets hitting these routes need to be trapped, but
2149 * can do so with a lower priority than packets directed
2150 * at the host, so use action type local instead of trap.
2152 fib_entry
->type
= MLXSW_SP_FIB_ENTRY_TYPE_LOCAL
;
2155 if (fi
->fib_nh
->nh_scope
!= RT_SCOPE_LINK
)
2156 fib_entry
->type
= MLXSW_SP_FIB_ENTRY_TYPE_LOCAL
;
2158 fib_entry
->type
= MLXSW_SP_FIB_ENTRY_TYPE_REMOTE
;
2165 static struct mlxsw_sp_fib_entry
*
2166 mlxsw_sp_fib4_entry_create(struct mlxsw_sp
*mlxsw_sp
,
2167 struct mlxsw_sp_fib_node
*fib_node
,
2168 const struct fib_entry_notifier_info
*fen_info
)
2170 struct mlxsw_sp_fib_entry
*fib_entry
;
2173 fib_entry
= kzalloc(sizeof(*fib_entry
), GFP_KERNEL
);
2176 goto err_fib_entry_alloc
;
2179 err
= mlxsw_sp_fib4_entry_type_set(mlxsw_sp
, fen_info
, fib_entry
);
2181 goto err_fib4_entry_type_set
;
2183 err
= mlxsw_sp_nexthop_group_get(mlxsw_sp
, fib_entry
, fen_info
->fi
);
2185 goto err_nexthop_group_get
;
2187 fib_entry
->params
.prio
= fen_info
->fi
->fib_priority
;
2188 fib_entry
->params
.tb_id
= fen_info
->tb_id
;
2189 fib_entry
->params
.type
= fen_info
->type
;
2190 fib_entry
->params
.tos
= fen_info
->tos
;
2192 fib_entry
->fib_node
= fib_node
;
2196 err_nexthop_group_get
:
2197 err_fib4_entry_type_set
:
2199 err_fib_entry_alloc
:
2200 return ERR_PTR(err
);
2203 static void mlxsw_sp_fib4_entry_destroy(struct mlxsw_sp
*mlxsw_sp
,
2204 struct mlxsw_sp_fib_entry
*fib_entry
)
2206 mlxsw_sp_nexthop_group_put(mlxsw_sp
, fib_entry
);
2210 static struct mlxsw_sp_fib_node
*
2211 mlxsw_sp_fib4_node_get(struct mlxsw_sp
*mlxsw_sp
,
2212 const struct fib_entry_notifier_info
*fen_info
);
2214 static struct mlxsw_sp_fib_entry
*
2215 mlxsw_sp_fib4_entry_lookup(struct mlxsw_sp
*mlxsw_sp
,
2216 const struct fib_entry_notifier_info
*fen_info
)
2218 struct mlxsw_sp_fib_entry
*fib_entry
;
2219 struct mlxsw_sp_fib_node
*fib_node
;
2221 fib_node
= mlxsw_sp_fib4_node_get(mlxsw_sp
, fen_info
);
2222 if (IS_ERR(fib_node
))
2225 list_for_each_entry(fib_entry
, &fib_node
->entry_list
, list
) {
2226 if (fib_entry
->params
.tb_id
== fen_info
->tb_id
&&
2227 fib_entry
->params
.tos
== fen_info
->tos
&&
2228 fib_entry
->params
.type
== fen_info
->type
&&
2229 fib_entry
->nh_group
->key
.fi
== fen_info
->fi
) {
2237 static const struct rhashtable_params mlxsw_sp_fib_ht_params
= {
2238 .key_offset
= offsetof(struct mlxsw_sp_fib_node
, key
),
2239 .head_offset
= offsetof(struct mlxsw_sp_fib_node
, ht_node
),
2240 .key_len
= sizeof(struct mlxsw_sp_fib_key
),
2241 .automatic_shrinking
= true,
2244 static int mlxsw_sp_fib_node_insert(struct mlxsw_sp_fib
*fib
,
2245 struct mlxsw_sp_fib_node
*fib_node
)
2247 return rhashtable_insert_fast(&fib
->ht
, &fib_node
->ht_node
,
2248 mlxsw_sp_fib_ht_params
);
2251 static void mlxsw_sp_fib_node_remove(struct mlxsw_sp_fib
*fib
,
2252 struct mlxsw_sp_fib_node
*fib_node
)
2254 rhashtable_remove_fast(&fib
->ht
, &fib_node
->ht_node
,
2255 mlxsw_sp_fib_ht_params
);
2258 static struct mlxsw_sp_fib_node
*
2259 mlxsw_sp_fib_node_lookup(struct mlxsw_sp_fib
*fib
, const void *addr
,
2260 size_t addr_len
, unsigned char prefix_len
)
2262 struct mlxsw_sp_fib_key key
;
2264 memset(&key
, 0, sizeof(key
));
2265 memcpy(key
.addr
, addr
, addr_len
);
2266 key
.prefix_len
= prefix_len
;
2267 return rhashtable_lookup_fast(&fib
->ht
, &key
, mlxsw_sp_fib_ht_params
);
2270 static struct mlxsw_sp_fib_node
*
2271 mlxsw_sp_fib_node_create(struct mlxsw_sp_fib
*fib
, const void *addr
,
2272 size_t addr_len
, unsigned char prefix_len
)
2274 struct mlxsw_sp_fib_node
*fib_node
;
2276 fib_node
= kzalloc(sizeof(*fib_node
), GFP_KERNEL
);
2280 INIT_LIST_HEAD(&fib_node
->entry_list
);
2281 list_add(&fib_node
->list
, &fib
->node_list
);
2282 memcpy(fib_node
->key
.addr
, addr
, addr_len
);
2283 fib_node
->key
.prefix_len
= prefix_len
;
2288 static void mlxsw_sp_fib_node_destroy(struct mlxsw_sp_fib_node
*fib_node
)
2290 list_del(&fib_node
->list
);
2291 WARN_ON(!list_empty(&fib_node
->entry_list
));
2296 mlxsw_sp_fib_node_entry_is_first(const struct mlxsw_sp_fib_node
*fib_node
,
2297 const struct mlxsw_sp_fib_entry
*fib_entry
)
2299 return list_first_entry(&fib_node
->entry_list
,
2300 struct mlxsw_sp_fib_entry
, list
) == fib_entry
;
2303 static void mlxsw_sp_fib_node_prefix_inc(struct mlxsw_sp_fib_node
*fib_node
)
2305 unsigned char prefix_len
= fib_node
->key
.prefix_len
;
2306 struct mlxsw_sp_fib
*fib
= fib_node
->fib
;
2308 if (fib
->prefix_ref_count
[prefix_len
]++ == 0)
2309 mlxsw_sp_prefix_usage_set(&fib
->prefix_usage
, prefix_len
);
2312 static void mlxsw_sp_fib_node_prefix_dec(struct mlxsw_sp_fib_node
*fib_node
)
2314 unsigned char prefix_len
= fib_node
->key
.prefix_len
;
2315 struct mlxsw_sp_fib
*fib
= fib_node
->fib
;
2317 if (--fib
->prefix_ref_count
[prefix_len
] == 0)
2318 mlxsw_sp_prefix_usage_clear(&fib
->prefix_usage
, prefix_len
);
2321 static int mlxsw_sp_fib_node_init(struct mlxsw_sp
*mlxsw_sp
,
2322 struct mlxsw_sp_fib_node
*fib_node
,
2323 struct mlxsw_sp_fib
*fib
)
2325 struct mlxsw_sp_prefix_usage req_prefix_usage
;
2326 struct mlxsw_sp_lpm_tree
*lpm_tree
;
2329 err
= mlxsw_sp_fib_node_insert(fib
, fib_node
);
2332 fib_node
->fib
= fib
;
2334 mlxsw_sp_prefix_usage_cpy(&req_prefix_usage
, &fib
->prefix_usage
);
2335 mlxsw_sp_prefix_usage_set(&req_prefix_usage
, fib_node
->key
.prefix_len
);
2337 if (!mlxsw_sp_prefix_usage_none(&fib
->prefix_usage
)) {
2338 err
= mlxsw_sp_vr_lpm_tree_check(mlxsw_sp
, fib
,
2341 goto err_tree_check
;
2343 lpm_tree
= mlxsw_sp_lpm_tree_get(mlxsw_sp
, &req_prefix_usage
,
2345 if (IS_ERR(lpm_tree
))
2346 return PTR_ERR(lpm_tree
);
2347 fib
->lpm_tree
= lpm_tree
;
2348 err
= mlxsw_sp_vr_lpm_tree_bind(mlxsw_sp
, fib
);
2353 mlxsw_sp_fib_node_prefix_inc(fib_node
);
2358 fib
->lpm_tree
= NULL
;
2359 mlxsw_sp_lpm_tree_put(mlxsw_sp
, lpm_tree
);
2361 fib_node
->fib
= NULL
;
2362 mlxsw_sp_fib_node_remove(fib
, fib_node
);
2366 static void mlxsw_sp_fib_node_fini(struct mlxsw_sp
*mlxsw_sp
,
2367 struct mlxsw_sp_fib_node
*fib_node
)
2369 struct mlxsw_sp_lpm_tree
*lpm_tree
= fib_node
->fib
->lpm_tree
;
2370 struct mlxsw_sp_fib
*fib
= fib_node
->fib
;
2372 mlxsw_sp_fib_node_prefix_dec(fib_node
);
2374 if (mlxsw_sp_prefix_usage_none(&fib
->prefix_usage
)) {
2375 mlxsw_sp_vr_lpm_tree_unbind(mlxsw_sp
, fib
);
2376 fib
->lpm_tree
= NULL
;
2377 mlxsw_sp_lpm_tree_put(mlxsw_sp
, lpm_tree
);
2379 mlxsw_sp_vr_lpm_tree_check(mlxsw_sp
, fib
, &fib
->prefix_usage
);
2382 fib_node
->fib
= NULL
;
2383 mlxsw_sp_fib_node_remove(fib
, fib_node
);
2386 static struct mlxsw_sp_fib_node
*
2387 mlxsw_sp_fib4_node_get(struct mlxsw_sp
*mlxsw_sp
,
2388 const struct fib_entry_notifier_info
*fen_info
)
2390 struct mlxsw_sp_fib_node
*fib_node
;
2391 struct mlxsw_sp_fib
*fib
;
2392 struct mlxsw_sp_vr
*vr
;
2395 vr
= mlxsw_sp_vr_get(mlxsw_sp
, fen_info
->tb_id
);
2397 return ERR_CAST(vr
);
2398 fib
= mlxsw_sp_vr_fib(vr
, MLXSW_SP_L3_PROTO_IPV4
);
2400 fib_node
= mlxsw_sp_fib_node_lookup(fib
, &fen_info
->dst
,
2401 sizeof(fen_info
->dst
),
2406 fib_node
= mlxsw_sp_fib_node_create(fib
, &fen_info
->dst
,
2407 sizeof(fen_info
->dst
),
2411 goto err_fib_node_create
;
2414 err
= mlxsw_sp_fib_node_init(mlxsw_sp
, fib_node
, fib
);
2416 goto err_fib_node_init
;
2421 mlxsw_sp_fib_node_destroy(fib_node
);
2422 err_fib_node_create
:
2423 mlxsw_sp_vr_put(vr
);
2424 return ERR_PTR(err
);
2427 static void mlxsw_sp_fib4_node_put(struct mlxsw_sp
*mlxsw_sp
,
2428 struct mlxsw_sp_fib_node
*fib_node
)
2430 struct mlxsw_sp_vr
*vr
= fib_node
->fib
->vr
;
2432 if (!list_empty(&fib_node
->entry_list
))
2434 mlxsw_sp_fib_node_fini(mlxsw_sp
, fib_node
);
2435 mlxsw_sp_fib_node_destroy(fib_node
);
2436 mlxsw_sp_vr_put(vr
);
2439 static struct mlxsw_sp_fib_entry
*
2440 mlxsw_sp_fib4_node_entry_find(const struct mlxsw_sp_fib_node
*fib_node
,
2441 const struct mlxsw_sp_fib_entry_params
*params
)
2443 struct mlxsw_sp_fib_entry
*fib_entry
;
2445 list_for_each_entry(fib_entry
, &fib_node
->entry_list
, list
) {
2446 if (fib_entry
->params
.tb_id
> params
->tb_id
)
2448 if (fib_entry
->params
.tb_id
!= params
->tb_id
)
2450 if (fib_entry
->params
.tos
> params
->tos
)
2452 if (fib_entry
->params
.prio
>= params
->prio
||
2453 fib_entry
->params
.tos
< params
->tos
)
2460 static int mlxsw_sp_fib4_node_list_append(struct mlxsw_sp_fib_entry
*fib_entry
,
2461 struct mlxsw_sp_fib_entry
*new_entry
)
2463 struct mlxsw_sp_fib_node
*fib_node
;
2465 if (WARN_ON(!fib_entry
))
2468 fib_node
= fib_entry
->fib_node
;
2469 list_for_each_entry_from(fib_entry
, &fib_node
->entry_list
, list
) {
2470 if (fib_entry
->params
.tb_id
!= new_entry
->params
.tb_id
||
2471 fib_entry
->params
.tos
!= new_entry
->params
.tos
||
2472 fib_entry
->params
.prio
!= new_entry
->params
.prio
)
2476 list_add_tail(&new_entry
->list
, &fib_entry
->list
);
2481 mlxsw_sp_fib4_node_list_insert(struct mlxsw_sp_fib_node
*fib_node
,
2482 struct mlxsw_sp_fib_entry
*new_entry
,
2483 bool replace
, bool append
)
2485 struct mlxsw_sp_fib_entry
*fib_entry
;
2487 fib_entry
= mlxsw_sp_fib4_node_entry_find(fib_node
, &new_entry
->params
);
2490 return mlxsw_sp_fib4_node_list_append(fib_entry
, new_entry
);
2491 if (replace
&& WARN_ON(!fib_entry
))
2494 /* Insert new entry before replaced one, so that we can later
2495 * remove the second.
2498 list_add_tail(&new_entry
->list
, &fib_entry
->list
);
2500 struct mlxsw_sp_fib_entry
*last
;
2502 list_for_each_entry(last
, &fib_node
->entry_list
, list
) {
2503 if (new_entry
->params
.tb_id
> last
->params
.tb_id
)
2509 list_add(&new_entry
->list
, &fib_entry
->list
);
2511 list_add(&new_entry
->list
, &fib_node
->entry_list
);
2518 mlxsw_sp_fib4_node_list_remove(struct mlxsw_sp_fib_entry
*fib_entry
)
2520 list_del(&fib_entry
->list
);
2524 mlxsw_sp_fib4_node_entry_add(struct mlxsw_sp
*mlxsw_sp
,
2525 const struct mlxsw_sp_fib_node
*fib_node
,
2526 struct mlxsw_sp_fib_entry
*fib_entry
)
2528 if (!mlxsw_sp_fib_node_entry_is_first(fib_node
, fib_entry
))
2531 /* To prevent packet loss, overwrite the previously offloaded
2534 if (!list_is_singular(&fib_node
->entry_list
)) {
2535 enum mlxsw_reg_ralue_op op
= MLXSW_REG_RALUE_OP_WRITE_DELETE
;
2536 struct mlxsw_sp_fib_entry
*n
= list_next_entry(fib_entry
, list
);
2538 mlxsw_sp_fib_entry_offload_refresh(n
, op
, 0);
2541 return mlxsw_sp_fib_entry_update(mlxsw_sp
, fib_entry
);
2545 mlxsw_sp_fib4_node_entry_del(struct mlxsw_sp
*mlxsw_sp
,
2546 const struct mlxsw_sp_fib_node
*fib_node
,
2547 struct mlxsw_sp_fib_entry
*fib_entry
)
2549 if (!mlxsw_sp_fib_node_entry_is_first(fib_node
, fib_entry
))
2552 /* Promote the next entry by overwriting the deleted entry */
2553 if (!list_is_singular(&fib_node
->entry_list
)) {
2554 struct mlxsw_sp_fib_entry
*n
= list_next_entry(fib_entry
, list
);
2555 enum mlxsw_reg_ralue_op op
= MLXSW_REG_RALUE_OP_WRITE_DELETE
;
2557 mlxsw_sp_fib_entry_update(mlxsw_sp
, n
);
2558 mlxsw_sp_fib_entry_offload_refresh(fib_entry
, op
, 0);
2562 mlxsw_sp_fib_entry_del(mlxsw_sp
, fib_entry
);
2565 static int mlxsw_sp_fib4_node_entry_link(struct mlxsw_sp
*mlxsw_sp
,
2566 struct mlxsw_sp_fib_entry
*fib_entry
,
2567 bool replace
, bool append
)
2569 struct mlxsw_sp_fib_node
*fib_node
= fib_entry
->fib_node
;
2572 err
= mlxsw_sp_fib4_node_list_insert(fib_node
, fib_entry
, replace
,
2577 err
= mlxsw_sp_fib4_node_entry_add(mlxsw_sp
, fib_node
, fib_entry
);
2579 goto err_fib4_node_entry_add
;
2583 err_fib4_node_entry_add
:
2584 mlxsw_sp_fib4_node_list_remove(fib_entry
);
2589 mlxsw_sp_fib4_node_entry_unlink(struct mlxsw_sp
*mlxsw_sp
,
2590 struct mlxsw_sp_fib_entry
*fib_entry
)
2592 struct mlxsw_sp_fib_node
*fib_node
= fib_entry
->fib_node
;
2594 mlxsw_sp_fib4_node_entry_del(mlxsw_sp
, fib_node
, fib_entry
);
2595 mlxsw_sp_fib4_node_list_remove(fib_entry
);
2598 static void mlxsw_sp_fib4_entry_replace(struct mlxsw_sp
*mlxsw_sp
,
2599 struct mlxsw_sp_fib_entry
*fib_entry
,
2602 struct mlxsw_sp_fib_node
*fib_node
= fib_entry
->fib_node
;
2603 struct mlxsw_sp_fib_entry
*replaced
;
2608 /* We inserted the new entry before replaced one */
2609 replaced
= list_next_entry(fib_entry
, list
);
2611 mlxsw_sp_fib4_node_entry_unlink(mlxsw_sp
, replaced
);
2612 mlxsw_sp_fib4_entry_destroy(mlxsw_sp
, replaced
);
2613 mlxsw_sp_fib4_node_put(mlxsw_sp
, fib_node
);
2617 mlxsw_sp_router_fib4_add(struct mlxsw_sp
*mlxsw_sp
,
2618 const struct fib_entry_notifier_info
*fen_info
,
2619 bool replace
, bool append
)
2621 struct mlxsw_sp_fib_entry
*fib_entry
;
2622 struct mlxsw_sp_fib_node
*fib_node
;
2625 if (mlxsw_sp
->router
->aborted
)
2628 fib_node
= mlxsw_sp_fib4_node_get(mlxsw_sp
, fen_info
);
2629 if (IS_ERR(fib_node
)) {
2630 dev_warn(mlxsw_sp
->bus_info
->dev
, "Failed to get FIB node\n");
2631 return PTR_ERR(fib_node
);
2634 fib_entry
= mlxsw_sp_fib4_entry_create(mlxsw_sp
, fib_node
, fen_info
);
2635 if (IS_ERR(fib_entry
)) {
2636 dev_warn(mlxsw_sp
->bus_info
->dev
, "Failed to create FIB entry\n");
2637 err
= PTR_ERR(fib_entry
);
2638 goto err_fib4_entry_create
;
2641 err
= mlxsw_sp_fib4_node_entry_link(mlxsw_sp
, fib_entry
, replace
,
2644 dev_warn(mlxsw_sp
->bus_info
->dev
, "Failed to link FIB entry to node\n");
2645 goto err_fib4_node_entry_link
;
2648 mlxsw_sp_fib4_entry_replace(mlxsw_sp
, fib_entry
, replace
);
2652 err_fib4_node_entry_link
:
2653 mlxsw_sp_fib4_entry_destroy(mlxsw_sp
, fib_entry
);
2654 err_fib4_entry_create
:
2655 mlxsw_sp_fib4_node_put(mlxsw_sp
, fib_node
);
2659 static void mlxsw_sp_router_fib4_del(struct mlxsw_sp
*mlxsw_sp
,
2660 struct fib_entry_notifier_info
*fen_info
)
2662 struct mlxsw_sp_fib_entry
*fib_entry
;
2663 struct mlxsw_sp_fib_node
*fib_node
;
2665 if (mlxsw_sp
->router
->aborted
)
2668 fib_entry
= mlxsw_sp_fib4_entry_lookup(mlxsw_sp
, fen_info
);
2669 if (WARN_ON(!fib_entry
))
2671 fib_node
= fib_entry
->fib_node
;
2673 mlxsw_sp_fib4_node_entry_unlink(mlxsw_sp
, fib_entry
);
2674 mlxsw_sp_fib4_entry_destroy(mlxsw_sp
, fib_entry
);
2675 mlxsw_sp_fib4_node_put(mlxsw_sp
, fib_node
);
2678 static int mlxsw_sp_router_set_abort_trap(struct mlxsw_sp
*mlxsw_sp
)
2680 char ralta_pl
[MLXSW_REG_RALTA_LEN
];
2681 char ralst_pl
[MLXSW_REG_RALST_LEN
];
2684 mlxsw_reg_ralta_pack(ralta_pl
, true, MLXSW_REG_RALXX_PROTOCOL_IPV4
,
2685 MLXSW_SP_LPM_TREE_MIN
);
2686 err
= mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ralta
), ralta_pl
);
2690 mlxsw_reg_ralst_pack(ralst_pl
, 0xff, MLXSW_SP_LPM_TREE_MIN
);
2691 err
= mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ralst
), ralst_pl
);
2695 for (i
= 0; i
< MLXSW_CORE_RES_GET(mlxsw_sp
->core
, MAX_VRS
); i
++) {
2696 struct mlxsw_sp_vr
*vr
= &mlxsw_sp
->router
->vrs
[i
];
2697 char raltb_pl
[MLXSW_REG_RALTB_LEN
];
2698 char ralue_pl
[MLXSW_REG_RALUE_LEN
];
2700 if (!mlxsw_sp_vr_is_used(vr
))
2703 mlxsw_reg_raltb_pack(raltb_pl
, vr
->id
,
2704 MLXSW_REG_RALXX_PROTOCOL_IPV4
,
2705 MLXSW_SP_LPM_TREE_MIN
);
2706 err
= mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(raltb
),
2711 mlxsw_reg_ralue_pack4(ralue_pl
, MLXSW_SP_L3_PROTO_IPV4
,
2712 MLXSW_REG_RALUE_OP_WRITE_WRITE
, vr
->id
, 0,
2714 mlxsw_reg_ralue_act_ip2me_pack(ralue_pl
);
2715 err
= mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ralue
),
2724 static void mlxsw_sp_fib4_node_flush(struct mlxsw_sp
*mlxsw_sp
,
2725 struct mlxsw_sp_fib_node
*fib_node
)
2727 struct mlxsw_sp_fib_entry
*fib_entry
, *tmp
;
2729 list_for_each_entry_safe(fib_entry
, tmp
, &fib_node
->entry_list
, list
) {
2730 bool do_break
= &tmp
->list
== &fib_node
->entry_list
;
2732 mlxsw_sp_fib4_node_entry_unlink(mlxsw_sp
, fib_entry
);
2733 mlxsw_sp_fib4_entry_destroy(mlxsw_sp
, fib_entry
);
2734 mlxsw_sp_fib4_node_put(mlxsw_sp
, fib_node
);
2735 /* Break when entry list is empty and node was freed.
2736 * Otherwise, we'll access freed memory in the next
2744 static void mlxsw_sp_fib_node_flush(struct mlxsw_sp
*mlxsw_sp
,
2745 struct mlxsw_sp_fib_node
*fib_node
)
2747 switch (fib_node
->fib
->proto
) {
2748 case MLXSW_SP_L3_PROTO_IPV4
:
2749 mlxsw_sp_fib4_node_flush(mlxsw_sp
, fib_node
);
2751 case MLXSW_SP_L3_PROTO_IPV6
:
2757 static void mlxsw_sp_vr_fib_flush(struct mlxsw_sp
*mlxsw_sp
,
2758 struct mlxsw_sp_vr
*vr
,
2759 enum mlxsw_sp_l3proto proto
)
2761 struct mlxsw_sp_fib
*fib
= mlxsw_sp_vr_fib(vr
, proto
);
2762 struct mlxsw_sp_fib_node
*fib_node
, *tmp
;
2764 list_for_each_entry_safe(fib_node
, tmp
, &fib
->node_list
, list
) {
2765 bool do_break
= &tmp
->list
== &fib
->node_list
;
2767 mlxsw_sp_fib_node_flush(mlxsw_sp
, fib_node
);
2773 static void mlxsw_sp_router_fib_flush(struct mlxsw_sp
*mlxsw_sp
)
2777 for (i
= 0; i
< MLXSW_CORE_RES_GET(mlxsw_sp
->core
, MAX_VRS
); i
++) {
2778 struct mlxsw_sp_vr
*vr
= &mlxsw_sp
->router
->vrs
[i
];
2780 if (!mlxsw_sp_vr_is_used(vr
))
2782 mlxsw_sp_vr_fib_flush(mlxsw_sp
, vr
, MLXSW_SP_L3_PROTO_IPV4
);
2786 static void mlxsw_sp_router_fib4_abort(struct mlxsw_sp
*mlxsw_sp
)
2790 if (mlxsw_sp
->router
->aborted
)
2792 dev_warn(mlxsw_sp
->bus_info
->dev
, "FIB abort triggered. Note that FIB entries are no longer being offloaded to this device.\n");
2793 mlxsw_sp_router_fib_flush(mlxsw_sp
);
2794 mlxsw_sp
->router
->aborted
= true;
2795 err
= mlxsw_sp_router_set_abort_trap(mlxsw_sp
);
2797 dev_warn(mlxsw_sp
->bus_info
->dev
, "Failed to set abort trap.\n");
2800 struct mlxsw_sp_fib_event_work
{
2801 struct work_struct work
;
2803 struct fib_entry_notifier_info fen_info
;
2804 struct fib_rule_notifier_info fr_info
;
2805 struct fib_nh_notifier_info fnh_info
;
2807 struct mlxsw_sp
*mlxsw_sp
;
2808 unsigned long event
;
2811 static void mlxsw_sp_router_fib_event_work(struct work_struct
*work
)
2813 struct mlxsw_sp_fib_event_work
*fib_work
=
2814 container_of(work
, struct mlxsw_sp_fib_event_work
, work
);
2815 struct mlxsw_sp
*mlxsw_sp
= fib_work
->mlxsw_sp
;
2816 struct fib_rule
*rule
;
2817 bool replace
, append
;
2820 /* Protect internal structures from changes */
2822 switch (fib_work
->event
) {
2823 case FIB_EVENT_ENTRY_REPLACE
: /* fall through */
2824 case FIB_EVENT_ENTRY_APPEND
: /* fall through */
2825 case FIB_EVENT_ENTRY_ADD
:
2826 replace
= fib_work
->event
== FIB_EVENT_ENTRY_REPLACE
;
2827 append
= fib_work
->event
== FIB_EVENT_ENTRY_APPEND
;
2828 err
= mlxsw_sp_router_fib4_add(mlxsw_sp
, &fib_work
->fen_info
,
2831 mlxsw_sp_router_fib4_abort(mlxsw_sp
);
2832 fib_info_put(fib_work
->fen_info
.fi
);
2834 case FIB_EVENT_ENTRY_DEL
:
2835 mlxsw_sp_router_fib4_del(mlxsw_sp
, &fib_work
->fen_info
);
2836 fib_info_put(fib_work
->fen_info
.fi
);
2838 case FIB_EVENT_RULE_ADD
: /* fall through */
2839 case FIB_EVENT_RULE_DEL
:
2840 rule
= fib_work
->fr_info
.rule
;
2841 if (!fib4_rule_default(rule
) && !rule
->l3mdev
)
2842 mlxsw_sp_router_fib4_abort(mlxsw_sp
);
2845 case FIB_EVENT_NH_ADD
: /* fall through */
2846 case FIB_EVENT_NH_DEL
:
2847 mlxsw_sp_nexthop_event(mlxsw_sp
, fib_work
->event
,
2848 fib_work
->fnh_info
.fib_nh
);
2849 fib_info_put(fib_work
->fnh_info
.fib_nh
->nh_parent
);
2856 /* Called with rcu_read_lock() */
2857 static int mlxsw_sp_router_fib_event(struct notifier_block
*nb
,
2858 unsigned long event
, void *ptr
)
2860 struct mlxsw_sp_fib_event_work
*fib_work
;
2861 struct fib_notifier_info
*info
= ptr
;
2862 struct mlxsw_sp_router
*router
;
2864 if (!net_eq(info
->net
, &init_net
))
2867 fib_work
= kzalloc(sizeof(*fib_work
), GFP_ATOMIC
);
2868 if (WARN_ON(!fib_work
))
2871 INIT_WORK(&fib_work
->work
, mlxsw_sp_router_fib_event_work
);
2872 router
= container_of(nb
, struct mlxsw_sp_router
, fib_nb
);
2873 fib_work
->mlxsw_sp
= router
->mlxsw_sp
;
2874 fib_work
->event
= event
;
2877 case FIB_EVENT_ENTRY_REPLACE
: /* fall through */
2878 case FIB_EVENT_ENTRY_APPEND
: /* fall through */
2879 case FIB_EVENT_ENTRY_ADD
: /* fall through */
2880 case FIB_EVENT_ENTRY_DEL
:
2881 memcpy(&fib_work
->fen_info
, ptr
, sizeof(fib_work
->fen_info
));
2882 /* Take referece on fib_info to prevent it from being
2883 * freed while work is queued. Release it afterwards.
2885 fib_info_hold(fib_work
->fen_info
.fi
);
2887 case FIB_EVENT_RULE_ADD
: /* fall through */
2888 case FIB_EVENT_RULE_DEL
:
2889 memcpy(&fib_work
->fr_info
, ptr
, sizeof(fib_work
->fr_info
));
2890 fib_rule_get(fib_work
->fr_info
.rule
);
2892 case FIB_EVENT_NH_ADD
: /* fall through */
2893 case FIB_EVENT_NH_DEL
:
2894 memcpy(&fib_work
->fnh_info
, ptr
, sizeof(fib_work
->fnh_info
));
2895 fib_info_hold(fib_work
->fnh_info
.fib_nh
->nh_parent
);
2899 mlxsw_core_schedule_work(&fib_work
->work
);
2904 static struct mlxsw_sp_rif
*
2905 mlxsw_sp_rif_find_by_dev(const struct mlxsw_sp
*mlxsw_sp
,
2906 const struct net_device
*dev
)
2910 for (i
= 0; i
< MLXSW_CORE_RES_GET(mlxsw_sp
->core
, MAX_RIFS
); i
++)
2911 if (mlxsw_sp
->router
->rifs
[i
] &&
2912 mlxsw_sp
->router
->rifs
[i
]->dev
== dev
)
2913 return mlxsw_sp
->router
->rifs
[i
];
2918 static int mlxsw_sp_router_rif_disable(struct mlxsw_sp
*mlxsw_sp
, u16 rif
)
2920 char ritr_pl
[MLXSW_REG_RITR_LEN
];
2923 mlxsw_reg_ritr_rif_pack(ritr_pl
, rif
);
2924 err
= mlxsw_reg_query(mlxsw_sp
->core
, MLXSW_REG(ritr
), ritr_pl
);
2925 if (WARN_ON_ONCE(err
))
2928 mlxsw_reg_ritr_enable_set(ritr_pl
, false);
2929 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ritr
), ritr_pl
);
2932 static void mlxsw_sp_router_rif_gone_sync(struct mlxsw_sp
*mlxsw_sp
,
2933 struct mlxsw_sp_rif
*rif
)
2935 mlxsw_sp_router_rif_disable(mlxsw_sp
, rif
->rif_index
);
2936 mlxsw_sp_nexthop_rif_gone_sync(mlxsw_sp
, rif
);
2937 mlxsw_sp_neigh_rif_gone_sync(mlxsw_sp
, rif
);
2940 static bool mlxsw_sp_rif_should_config(struct mlxsw_sp_rif
*rif
,
2941 const struct in_device
*in_dev
,
2942 unsigned long event
)
2950 if (rif
&& !in_dev
->ifa_list
&&
2951 !netif_is_l3_slave(rif
->dev
))
2953 /* It is possible we already removed the RIF ourselves
2954 * if it was assigned to a netdev that is now a bridge
2963 static enum mlxsw_sp_rif_type
2964 mlxsw_sp_dev_rif_type(const struct mlxsw_sp
*mlxsw_sp
,
2965 const struct net_device
*dev
)
2967 enum mlxsw_sp_fid_type type
;
2969 /* RIF type is derived from the type of the underlying FID */
2970 if (is_vlan_dev(dev
) && netif_is_bridge_master(vlan_dev_real_dev(dev
)))
2971 type
= MLXSW_SP_FID_TYPE_8021Q
;
2972 else if (netif_is_bridge_master(dev
) && br_vlan_enabled(dev
))
2973 type
= MLXSW_SP_FID_TYPE_8021Q
;
2974 else if (netif_is_bridge_master(dev
))
2975 type
= MLXSW_SP_FID_TYPE_8021D
;
2977 type
= MLXSW_SP_FID_TYPE_RFID
;
2979 return mlxsw_sp_fid_type_rif_type(mlxsw_sp
, type
);
2982 static int mlxsw_sp_rif_index_alloc(struct mlxsw_sp
*mlxsw_sp
, u16
*p_rif_index
)
2986 for (i
= 0; i
< MLXSW_CORE_RES_GET(mlxsw_sp
->core
, MAX_RIFS
); i
++) {
2987 if (!mlxsw_sp
->router
->rifs
[i
]) {
2996 static struct mlxsw_sp_rif
*mlxsw_sp_rif_alloc(size_t rif_size
, u16 rif_index
,
2998 struct net_device
*l3_dev
)
3000 struct mlxsw_sp_rif
*rif
;
3002 rif
= kzalloc(rif_size
, GFP_KERNEL
);
3006 INIT_LIST_HEAD(&rif
->nexthop_list
);
3007 INIT_LIST_HEAD(&rif
->neigh_list
);
3008 ether_addr_copy(rif
->addr
, l3_dev
->dev_addr
);
3009 rif
->mtu
= l3_dev
->mtu
;
3012 rif
->rif_index
= rif_index
;
3017 struct mlxsw_sp_rif
*mlxsw_sp_rif_by_index(const struct mlxsw_sp
*mlxsw_sp
,
3020 return mlxsw_sp
->router
->rifs
[rif_index
];
3023 u16
mlxsw_sp_rif_index(const struct mlxsw_sp_rif
*rif
)
3025 return rif
->rif_index
;
3028 int mlxsw_sp_rif_dev_ifindex(const struct mlxsw_sp_rif
*rif
)
3030 return rif
->dev
->ifindex
;
3033 static struct mlxsw_sp_rif
*
3034 mlxsw_sp_rif_create(struct mlxsw_sp
*mlxsw_sp
,
3035 const struct mlxsw_sp_rif_params
*params
)
3037 u32 tb_id
= l3mdev_fib_table(params
->dev
);
3038 const struct mlxsw_sp_rif_ops
*ops
;
3039 enum mlxsw_sp_rif_type type
;
3040 struct mlxsw_sp_rif
*rif
;
3041 struct mlxsw_sp_fid
*fid
;
3042 struct mlxsw_sp_vr
*vr
;
3046 type
= mlxsw_sp_dev_rif_type(mlxsw_sp
, params
->dev
);
3047 ops
= mlxsw_sp
->router
->rif_ops_arr
[type
];
3049 vr
= mlxsw_sp_vr_get(mlxsw_sp
, tb_id
? : RT_TABLE_MAIN
);
3051 return ERR_CAST(vr
);
3053 err
= mlxsw_sp_rif_index_alloc(mlxsw_sp
, &rif_index
);
3055 goto err_rif_index_alloc
;
3057 rif
= mlxsw_sp_rif_alloc(ops
->rif_size
, rif_index
, vr
->id
, params
->dev
);
3062 rif
->mlxsw_sp
= mlxsw_sp
;
3065 fid
= ops
->fid_get(rif
);
3073 ops
->setup(rif
, params
);
3075 err
= ops
->configure(rif
);
3079 err
= mlxsw_sp_rif_fdb_op(mlxsw_sp
, params
->dev
->dev_addr
,
3080 mlxsw_sp_fid_index(fid
), true);
3082 goto err_rif_fdb_op
;
3084 mlxsw_sp_rif_counters_alloc(rif
);
3085 mlxsw_sp_fid_rif_set(fid
, rif
);
3086 mlxsw_sp
->router
->rifs
[rif_index
] = rif
;
3092 ops
->deconfigure(rif
);
3094 mlxsw_sp_fid_put(fid
);
3098 err_rif_index_alloc
:
3099 mlxsw_sp_vr_put(vr
);
3100 return ERR_PTR(err
);
3103 void mlxsw_sp_rif_destroy(struct mlxsw_sp_rif
*rif
)
3105 const struct mlxsw_sp_rif_ops
*ops
= rif
->ops
;
3106 struct mlxsw_sp
*mlxsw_sp
= rif
->mlxsw_sp
;
3107 struct mlxsw_sp_fid
*fid
= rif
->fid
;
3108 struct mlxsw_sp_vr
*vr
;
3110 mlxsw_sp_router_rif_gone_sync(mlxsw_sp
, rif
);
3111 vr
= &mlxsw_sp
->router
->vrs
[rif
->vr_id
];
3114 mlxsw_sp
->router
->rifs
[rif
->rif_index
] = NULL
;
3115 mlxsw_sp_fid_rif_set(fid
, NULL
);
3116 mlxsw_sp_rif_counters_free(rif
);
3117 mlxsw_sp_rif_fdb_op(mlxsw_sp
, rif
->dev
->dev_addr
,
3118 mlxsw_sp_fid_index(fid
), false);
3119 ops
->deconfigure(rif
);
3120 mlxsw_sp_fid_put(fid
);
3122 mlxsw_sp_vr_put(vr
);
3126 mlxsw_sp_rif_subport_params_init(struct mlxsw_sp_rif_params
*params
,
3127 struct mlxsw_sp_port_vlan
*mlxsw_sp_port_vlan
)
3129 struct mlxsw_sp_port
*mlxsw_sp_port
= mlxsw_sp_port_vlan
->mlxsw_sp_port
;
3131 params
->vid
= mlxsw_sp_port_vlan
->vid
;
3132 params
->lag
= mlxsw_sp_port
->lagged
;
3134 params
->lag_id
= mlxsw_sp_port
->lag_id
;
3136 params
->system_port
= mlxsw_sp_port
->local_port
;
3140 mlxsw_sp_port_vlan_router_join(struct mlxsw_sp_port_vlan
*mlxsw_sp_port_vlan
,
3141 struct net_device
*l3_dev
)
3143 struct mlxsw_sp_port
*mlxsw_sp_port
= mlxsw_sp_port_vlan
->mlxsw_sp_port
;
3144 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_port
->mlxsw_sp
;
3145 u16 vid
= mlxsw_sp_port_vlan
->vid
;
3146 struct mlxsw_sp_rif
*rif
;
3147 struct mlxsw_sp_fid
*fid
;
3150 rif
= mlxsw_sp_rif_find_by_dev(mlxsw_sp
, l3_dev
);
3152 struct mlxsw_sp_rif_params params
= {
3156 mlxsw_sp_rif_subport_params_init(¶ms
, mlxsw_sp_port_vlan
);
3157 rif
= mlxsw_sp_rif_create(mlxsw_sp
, ¶ms
);
3159 return PTR_ERR(rif
);
3162 /* FID was already created, just take a reference */
3163 fid
= rif
->ops
->fid_get(rif
);
3164 err
= mlxsw_sp_fid_port_vid_map(fid
, mlxsw_sp_port
, vid
);
3166 goto err_fid_port_vid_map
;
3168 err
= mlxsw_sp_port_vid_learning_set(mlxsw_sp_port
, vid
, false);
3170 goto err_port_vid_learning_set
;
3172 err
= mlxsw_sp_port_vid_stp_set(mlxsw_sp_port
, vid
,
3173 BR_STATE_FORWARDING
);
3175 goto err_port_vid_stp_set
;
3177 mlxsw_sp_port_vlan
->fid
= fid
;
3181 err_port_vid_stp_set
:
3182 mlxsw_sp_port_vid_learning_set(mlxsw_sp_port
, vid
, true);
3183 err_port_vid_learning_set
:
3184 mlxsw_sp_fid_port_vid_unmap(fid
, mlxsw_sp_port
, vid
);
3185 err_fid_port_vid_map
:
3186 mlxsw_sp_fid_put(fid
);
3191 mlxsw_sp_port_vlan_router_leave(struct mlxsw_sp_port_vlan
*mlxsw_sp_port_vlan
)
3193 struct mlxsw_sp_port
*mlxsw_sp_port
= mlxsw_sp_port_vlan
->mlxsw_sp_port
;
3194 struct mlxsw_sp_fid
*fid
= mlxsw_sp_port_vlan
->fid
;
3195 u16 vid
= mlxsw_sp_port_vlan
->vid
;
3197 if (WARN_ON(mlxsw_sp_fid_type(fid
) != MLXSW_SP_FID_TYPE_RFID
))
3200 mlxsw_sp_port_vlan
->fid
= NULL
;
3201 mlxsw_sp_port_vid_stp_set(mlxsw_sp_port
, vid
, BR_STATE_BLOCKING
);
3202 mlxsw_sp_port_vid_learning_set(mlxsw_sp_port
, vid
, true);
3203 mlxsw_sp_fid_port_vid_unmap(fid
, mlxsw_sp_port
, vid
);
3204 /* If router port holds the last reference on the rFID, then the
3205 * associated Sub-port RIF will be destroyed.
3207 mlxsw_sp_fid_put(fid
);
3210 static int mlxsw_sp_inetaddr_port_vlan_event(struct net_device
*l3_dev
,
3211 struct net_device
*port_dev
,
3212 unsigned long event
, u16 vid
)
3214 struct mlxsw_sp_port
*mlxsw_sp_port
= netdev_priv(port_dev
);
3215 struct mlxsw_sp_port_vlan
*mlxsw_sp_port_vlan
;
3217 mlxsw_sp_port_vlan
= mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port
, vid
);
3218 if (WARN_ON(!mlxsw_sp_port_vlan
))
3223 return mlxsw_sp_port_vlan_router_join(mlxsw_sp_port_vlan
,
3226 mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan
);
3233 static int mlxsw_sp_inetaddr_port_event(struct net_device
*port_dev
,
3234 unsigned long event
)
3236 if (netif_is_bridge_port(port_dev
) ||
3237 netif_is_lag_port(port_dev
) ||
3238 netif_is_ovs_port(port_dev
))
3241 return mlxsw_sp_inetaddr_port_vlan_event(port_dev
, port_dev
, event
, 1);
3244 static int __mlxsw_sp_inetaddr_lag_event(struct net_device
*l3_dev
,
3245 struct net_device
*lag_dev
,
3246 unsigned long event
, u16 vid
)
3248 struct net_device
*port_dev
;
3249 struct list_head
*iter
;
3252 netdev_for_each_lower_dev(lag_dev
, port_dev
, iter
) {
3253 if (mlxsw_sp_port_dev_check(port_dev
)) {
3254 err
= mlxsw_sp_inetaddr_port_vlan_event(l3_dev
,
3265 static int mlxsw_sp_inetaddr_lag_event(struct net_device
*lag_dev
,
3266 unsigned long event
)
3268 if (netif_is_bridge_port(lag_dev
))
3271 return __mlxsw_sp_inetaddr_lag_event(lag_dev
, lag_dev
, event
, 1);
3274 static int mlxsw_sp_inetaddr_bridge_event(struct net_device
*l3_dev
,
3275 unsigned long event
)
3277 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_lower_get(l3_dev
);
3278 struct mlxsw_sp_rif_params params
= {
3281 struct mlxsw_sp_rif
*rif
;
3285 rif
= mlxsw_sp_rif_create(mlxsw_sp
, ¶ms
);
3287 return PTR_ERR(rif
);
3290 rif
= mlxsw_sp_rif_find_by_dev(mlxsw_sp
, l3_dev
);
3291 mlxsw_sp_rif_destroy(rif
);
3298 static int mlxsw_sp_inetaddr_vlan_event(struct net_device
*vlan_dev
,
3299 unsigned long event
)
3301 struct net_device
*real_dev
= vlan_dev_real_dev(vlan_dev
);
3302 u16 vid
= vlan_dev_vlan_id(vlan_dev
);
3304 if (netif_is_bridge_port(vlan_dev
))
3307 if (mlxsw_sp_port_dev_check(real_dev
))
3308 return mlxsw_sp_inetaddr_port_vlan_event(vlan_dev
, real_dev
,
3310 else if (netif_is_lag_master(real_dev
))
3311 return __mlxsw_sp_inetaddr_lag_event(vlan_dev
, real_dev
, event
,
3313 else if (netif_is_bridge_master(real_dev
) && br_vlan_enabled(real_dev
))
3314 return mlxsw_sp_inetaddr_bridge_event(vlan_dev
, event
);
3319 static int __mlxsw_sp_inetaddr_event(struct net_device
*dev
,
3320 unsigned long event
)
3322 if (mlxsw_sp_port_dev_check(dev
))
3323 return mlxsw_sp_inetaddr_port_event(dev
, event
);
3324 else if (netif_is_lag_master(dev
))
3325 return mlxsw_sp_inetaddr_lag_event(dev
, event
);
3326 else if (netif_is_bridge_master(dev
))
3327 return mlxsw_sp_inetaddr_bridge_event(dev
, event
);
3328 else if (is_vlan_dev(dev
))
3329 return mlxsw_sp_inetaddr_vlan_event(dev
, event
);
3334 int mlxsw_sp_inetaddr_event(struct notifier_block
*unused
,
3335 unsigned long event
, void *ptr
)
3337 struct in_ifaddr
*ifa
= (struct in_ifaddr
*) ptr
;
3338 struct net_device
*dev
= ifa
->ifa_dev
->dev
;
3339 struct mlxsw_sp
*mlxsw_sp
;
3340 struct mlxsw_sp_rif
*rif
;
3343 mlxsw_sp
= mlxsw_sp_lower_get(dev
);
3347 rif
= mlxsw_sp_rif_find_by_dev(mlxsw_sp
, dev
);
3348 if (!mlxsw_sp_rif_should_config(rif
, ifa
->ifa_dev
, event
))
3351 err
= __mlxsw_sp_inetaddr_event(dev
, event
);
3353 return notifier_from_errno(err
);
3356 static int mlxsw_sp_rif_edit(struct mlxsw_sp
*mlxsw_sp
, u16 rif_index
,
3357 const char *mac
, int mtu
)
3359 char ritr_pl
[MLXSW_REG_RITR_LEN
];
3362 mlxsw_reg_ritr_rif_pack(ritr_pl
, rif_index
);
3363 err
= mlxsw_reg_query(mlxsw_sp
->core
, MLXSW_REG(ritr
), ritr_pl
);
3367 mlxsw_reg_ritr_mtu_set(ritr_pl
, mtu
);
3368 mlxsw_reg_ritr_if_mac_memcpy_to(ritr_pl
, mac
);
3369 mlxsw_reg_ritr_op_set(ritr_pl
, MLXSW_REG_RITR_RIF_CREATE
);
3370 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ritr
), ritr_pl
);
3373 int mlxsw_sp_netdevice_router_port_event(struct net_device
*dev
)
3375 struct mlxsw_sp
*mlxsw_sp
;
3376 struct mlxsw_sp_rif
*rif
;
3380 mlxsw_sp
= mlxsw_sp_lower_get(dev
);
3384 rif
= mlxsw_sp_rif_find_by_dev(mlxsw_sp
, dev
);
3387 fid_index
= mlxsw_sp_fid_index(rif
->fid
);
3389 err
= mlxsw_sp_rif_fdb_op(mlxsw_sp
, rif
->addr
, fid_index
, false);
3393 err
= mlxsw_sp_rif_edit(mlxsw_sp
, rif
->rif_index
, dev
->dev_addr
,
3398 err
= mlxsw_sp_rif_fdb_op(mlxsw_sp
, dev
->dev_addr
, fid_index
, true);
3400 goto err_rif_fdb_op
;
3402 ether_addr_copy(rif
->addr
, dev
->dev_addr
);
3403 rif
->mtu
= dev
->mtu
;
3405 netdev_dbg(dev
, "Updated RIF=%d\n", rif
->rif_index
);
3410 mlxsw_sp_rif_edit(mlxsw_sp
, rif
->rif_index
, rif
->addr
, rif
->mtu
);
3412 mlxsw_sp_rif_fdb_op(mlxsw_sp
, rif
->addr
, fid_index
, true);
3416 static int mlxsw_sp_port_vrf_join(struct mlxsw_sp
*mlxsw_sp
,
3417 struct net_device
*l3_dev
)
3419 struct mlxsw_sp_rif
*rif
;
3421 /* If netdev is already associated with a RIF, then we need to
3422 * destroy it and create a new one with the new virtual router ID.
3424 rif
= mlxsw_sp_rif_find_by_dev(mlxsw_sp
, l3_dev
);
3426 __mlxsw_sp_inetaddr_event(l3_dev
, NETDEV_DOWN
);
3428 return __mlxsw_sp_inetaddr_event(l3_dev
, NETDEV_UP
);
3431 static void mlxsw_sp_port_vrf_leave(struct mlxsw_sp
*mlxsw_sp
,
3432 struct net_device
*l3_dev
)
3434 struct mlxsw_sp_rif
*rif
;
3436 rif
= mlxsw_sp_rif_find_by_dev(mlxsw_sp
, l3_dev
);
3439 __mlxsw_sp_inetaddr_event(l3_dev
, NETDEV_DOWN
);
3442 int mlxsw_sp_netdevice_vrf_event(struct net_device
*l3_dev
, unsigned long event
,
3443 struct netdev_notifier_changeupper_info
*info
)
3445 struct mlxsw_sp
*mlxsw_sp
= mlxsw_sp_lower_get(l3_dev
);
3452 case NETDEV_PRECHANGEUPPER
:
3454 case NETDEV_CHANGEUPPER
:
3456 err
= mlxsw_sp_port_vrf_join(mlxsw_sp
, l3_dev
);
3458 mlxsw_sp_port_vrf_leave(mlxsw_sp
, l3_dev
);
3465 static struct mlxsw_sp_rif_subport
*
3466 mlxsw_sp_rif_subport_rif(const struct mlxsw_sp_rif
*rif
)
3468 return container_of(rif
, struct mlxsw_sp_rif_subport
, common
);
3471 static void mlxsw_sp_rif_subport_setup(struct mlxsw_sp_rif
*rif
,
3472 const struct mlxsw_sp_rif_params
*params
)
3474 struct mlxsw_sp_rif_subport
*rif_subport
;
3476 rif_subport
= mlxsw_sp_rif_subport_rif(rif
);
3477 rif_subport
->vid
= params
->vid
;
3478 rif_subport
->lag
= params
->lag
;
3480 rif_subport
->lag_id
= params
->lag_id
;
3482 rif_subport
->system_port
= params
->system_port
;
3485 static int mlxsw_sp_rif_subport_op(struct mlxsw_sp_rif
*rif
, bool enable
)
3487 struct mlxsw_sp
*mlxsw_sp
= rif
->mlxsw_sp
;
3488 struct mlxsw_sp_rif_subport
*rif_subport
;
3489 char ritr_pl
[MLXSW_REG_RITR_LEN
];
3491 rif_subport
= mlxsw_sp_rif_subport_rif(rif
);
3492 mlxsw_reg_ritr_pack(ritr_pl
, enable
, MLXSW_REG_RITR_SP_IF
,
3493 rif
->rif_index
, rif
->vr_id
, rif
->dev
->mtu
,
3494 rif
->dev
->dev_addr
);
3495 mlxsw_reg_ritr_sp_if_pack(ritr_pl
, rif_subport
->lag
,
3496 rif_subport
->lag
? rif_subport
->lag_id
:
3497 rif_subport
->system_port
,
3500 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ritr
), ritr_pl
);
3503 static int mlxsw_sp_rif_subport_configure(struct mlxsw_sp_rif
*rif
)
3505 return mlxsw_sp_rif_subport_op(rif
, true);
3508 static void mlxsw_sp_rif_subport_deconfigure(struct mlxsw_sp_rif
*rif
)
3510 mlxsw_sp_rif_subport_op(rif
, false);
3513 static struct mlxsw_sp_fid
*
3514 mlxsw_sp_rif_subport_fid_get(struct mlxsw_sp_rif
*rif
)
3516 return mlxsw_sp_fid_rfid_get(rif
->mlxsw_sp
, rif
->rif_index
);
3519 static const struct mlxsw_sp_rif_ops mlxsw_sp_rif_subport_ops
= {
3520 .type
= MLXSW_SP_RIF_TYPE_SUBPORT
,
3521 .rif_size
= sizeof(struct mlxsw_sp_rif_subport
),
3522 .setup
= mlxsw_sp_rif_subport_setup
,
3523 .configure
= mlxsw_sp_rif_subport_configure
,
3524 .deconfigure
= mlxsw_sp_rif_subport_deconfigure
,
3525 .fid_get
= mlxsw_sp_rif_subport_fid_get
,
3528 static int mlxsw_sp_rif_vlan_fid_op(struct mlxsw_sp_rif
*rif
,
3529 enum mlxsw_reg_ritr_if_type type
,
3530 u16 vid_fid
, bool enable
)
3532 struct mlxsw_sp
*mlxsw_sp
= rif
->mlxsw_sp
;
3533 char ritr_pl
[MLXSW_REG_RITR_LEN
];
3535 mlxsw_reg_ritr_pack(ritr_pl
, enable
, type
, rif
->rif_index
, rif
->vr_id
,
3536 rif
->dev
->mtu
, rif
->dev
->dev_addr
);
3537 mlxsw_reg_ritr_fid_set(ritr_pl
, type
, vid_fid
);
3539 return mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(ritr
), ritr_pl
);
3542 static u8
mlxsw_sp_router_port(const struct mlxsw_sp
*mlxsw_sp
)
3544 return mlxsw_core_max_ports(mlxsw_sp
->core
) + 1;
3547 static int mlxsw_sp_rif_vlan_configure(struct mlxsw_sp_rif
*rif
)
3549 struct mlxsw_sp
*mlxsw_sp
= rif
->mlxsw_sp
;
3550 u16 vid
= mlxsw_sp_fid_8021q_vid(rif
->fid
);
3553 err
= mlxsw_sp_rif_vlan_fid_op(rif
, MLXSW_REG_RITR_VLAN_IF
, vid
, true);
3557 err
= mlxsw_sp_fid_flood_set(rif
->fid
, MLXSW_SP_FLOOD_TYPE_BC
,
3558 mlxsw_sp_router_port(mlxsw_sp
), true);
3560 goto err_fid_bc_flood_set
;
3564 err_fid_bc_flood_set
:
3565 mlxsw_sp_rif_vlan_fid_op(rif
, MLXSW_REG_RITR_VLAN_IF
, vid
, false);
3569 static void mlxsw_sp_rif_vlan_deconfigure(struct mlxsw_sp_rif
*rif
)
3571 struct mlxsw_sp
*mlxsw_sp
= rif
->mlxsw_sp
;
3572 u16 vid
= mlxsw_sp_fid_8021q_vid(rif
->fid
);
3574 mlxsw_sp_fid_flood_set(rif
->fid
, MLXSW_SP_FLOOD_TYPE_BC
,
3575 mlxsw_sp_router_port(mlxsw_sp
), false);
3576 mlxsw_sp_rif_vlan_fid_op(rif
, MLXSW_REG_RITR_VLAN_IF
, vid
, false);
3579 static struct mlxsw_sp_fid
*
3580 mlxsw_sp_rif_vlan_fid_get(struct mlxsw_sp_rif
*rif
)
3582 u16 vid
= is_vlan_dev(rif
->dev
) ? vlan_dev_vlan_id(rif
->dev
) : 1;
3584 return mlxsw_sp_fid_8021q_get(rif
->mlxsw_sp
, vid
);
3587 static const struct mlxsw_sp_rif_ops mlxsw_sp_rif_vlan_ops
= {
3588 .type
= MLXSW_SP_RIF_TYPE_VLAN
,
3589 .rif_size
= sizeof(struct mlxsw_sp_rif
),
3590 .configure
= mlxsw_sp_rif_vlan_configure
,
3591 .deconfigure
= mlxsw_sp_rif_vlan_deconfigure
,
3592 .fid_get
= mlxsw_sp_rif_vlan_fid_get
,
3595 static int mlxsw_sp_rif_fid_configure(struct mlxsw_sp_rif
*rif
)
3597 struct mlxsw_sp
*mlxsw_sp
= rif
->mlxsw_sp
;
3598 u16 fid_index
= mlxsw_sp_fid_index(rif
->fid
);
3601 err
= mlxsw_sp_rif_vlan_fid_op(rif
, MLXSW_REG_RITR_FID_IF
, fid_index
,
3606 err
= mlxsw_sp_fid_flood_set(rif
->fid
, MLXSW_SP_FLOOD_TYPE_BC
,
3607 mlxsw_sp_router_port(mlxsw_sp
), true);
3609 goto err_fid_bc_flood_set
;
3613 err_fid_bc_flood_set
:
3614 mlxsw_sp_rif_vlan_fid_op(rif
, MLXSW_REG_RITR_FID_IF
, fid_index
, false);
3618 static void mlxsw_sp_rif_fid_deconfigure(struct mlxsw_sp_rif
*rif
)
3620 struct mlxsw_sp
*mlxsw_sp
= rif
->mlxsw_sp
;
3621 u16 fid_index
= mlxsw_sp_fid_index(rif
->fid
);
3623 mlxsw_sp_fid_flood_set(rif
->fid
, MLXSW_SP_FLOOD_TYPE_BC
,
3624 mlxsw_sp_router_port(mlxsw_sp
), false);
3625 mlxsw_sp_rif_vlan_fid_op(rif
, MLXSW_REG_RITR_FID_IF
, fid_index
, false);
3628 static struct mlxsw_sp_fid
*
3629 mlxsw_sp_rif_fid_fid_get(struct mlxsw_sp_rif
*rif
)
3631 return mlxsw_sp_fid_8021d_get(rif
->mlxsw_sp
, rif
->dev
->ifindex
);
3634 static const struct mlxsw_sp_rif_ops mlxsw_sp_rif_fid_ops
= {
3635 .type
= MLXSW_SP_RIF_TYPE_FID
,
3636 .rif_size
= sizeof(struct mlxsw_sp_rif
),
3637 .configure
= mlxsw_sp_rif_fid_configure
,
3638 .deconfigure
= mlxsw_sp_rif_fid_deconfigure
,
3639 .fid_get
= mlxsw_sp_rif_fid_fid_get
,
3642 static const struct mlxsw_sp_rif_ops
*mlxsw_sp_rif_ops_arr
[] = {
3643 [MLXSW_SP_RIF_TYPE_SUBPORT
] = &mlxsw_sp_rif_subport_ops
,
3644 [MLXSW_SP_RIF_TYPE_VLAN
] = &mlxsw_sp_rif_vlan_ops
,
3645 [MLXSW_SP_RIF_TYPE_FID
] = &mlxsw_sp_rif_fid_ops
,
3648 static int mlxsw_sp_rifs_init(struct mlxsw_sp
*mlxsw_sp
)
3650 u64 max_rifs
= MLXSW_CORE_RES_GET(mlxsw_sp
->core
, MAX_RIFS
);
3652 mlxsw_sp
->router
->rifs
= kcalloc(max_rifs
,
3653 sizeof(struct mlxsw_sp_rif
*),
3655 if (!mlxsw_sp
->router
->rifs
)
3658 mlxsw_sp
->router
->rif_ops_arr
= mlxsw_sp_rif_ops_arr
;
3663 static void mlxsw_sp_rifs_fini(struct mlxsw_sp
*mlxsw_sp
)
3667 for (i
= 0; i
< MLXSW_CORE_RES_GET(mlxsw_sp
->core
, MAX_RIFS
); i
++)
3668 WARN_ON_ONCE(mlxsw_sp
->router
->rifs
[i
]);
3670 kfree(mlxsw_sp
->router
->rifs
);
3673 static void mlxsw_sp_router_fib_dump_flush(struct notifier_block
*nb
)
3675 struct mlxsw_sp_router
*router
;
3677 /* Flush pending FIB notifications and then flush the device's
3678 * table before requesting another dump. The FIB notification
3679 * block is unregistered, so no need to take RTNL.
3681 mlxsw_core_flush_owq();
3682 router
= container_of(nb
, struct mlxsw_sp_router
, fib_nb
);
3683 mlxsw_sp_router_fib_flush(router
->mlxsw_sp
);
3686 static int __mlxsw_sp_router_init(struct mlxsw_sp
*mlxsw_sp
)
3688 char rgcr_pl
[MLXSW_REG_RGCR_LEN
];
3692 if (!MLXSW_CORE_RES_VALID(mlxsw_sp
->core
, MAX_RIFS
))
3694 max_rifs
= MLXSW_CORE_RES_GET(mlxsw_sp
->core
, MAX_RIFS
);
3696 mlxsw_reg_rgcr_pack(rgcr_pl
, true);
3697 mlxsw_reg_rgcr_max_router_interfaces_set(rgcr_pl
, max_rifs
);
3698 err
= mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(rgcr
), rgcr_pl
);
3704 static void __mlxsw_sp_router_fini(struct mlxsw_sp
*mlxsw_sp
)
3706 char rgcr_pl
[MLXSW_REG_RGCR_LEN
];
3708 mlxsw_reg_rgcr_pack(rgcr_pl
, false);
3709 mlxsw_reg_write(mlxsw_sp
->core
, MLXSW_REG(rgcr
), rgcr_pl
);
3712 int mlxsw_sp_router_init(struct mlxsw_sp
*mlxsw_sp
)
3714 struct mlxsw_sp_router
*router
;
3717 router
= kzalloc(sizeof(*mlxsw_sp
->router
), GFP_KERNEL
);
3720 mlxsw_sp
->router
= router
;
3721 router
->mlxsw_sp
= mlxsw_sp
;
3723 INIT_LIST_HEAD(&mlxsw_sp
->router
->nexthop_neighs_list
);
3724 err
= __mlxsw_sp_router_init(mlxsw_sp
);
3726 goto err_router_init
;
3728 err
= mlxsw_sp_rifs_init(mlxsw_sp
);
3732 err
= rhashtable_init(&mlxsw_sp
->router
->nexthop_ht
,
3733 &mlxsw_sp_nexthop_ht_params
);
3735 goto err_nexthop_ht_init
;
3737 err
= rhashtable_init(&mlxsw_sp
->router
->nexthop_group_ht
,
3738 &mlxsw_sp_nexthop_group_ht_params
);
3740 goto err_nexthop_group_ht_init
;
3742 err
= mlxsw_sp_lpm_init(mlxsw_sp
);
3746 err
= mlxsw_sp_vrs_init(mlxsw_sp
);
3750 err
= mlxsw_sp_neigh_init(mlxsw_sp
);
3752 goto err_neigh_init
;
3754 mlxsw_sp
->router
->fib_nb
.notifier_call
= mlxsw_sp_router_fib_event
;
3755 err
= register_fib_notifier(&mlxsw_sp
->router
->fib_nb
,
3756 mlxsw_sp_router_fib_dump_flush
);
3758 goto err_register_fib_notifier
;
3762 err_register_fib_notifier
:
3763 mlxsw_sp_neigh_fini(mlxsw_sp
);
3765 mlxsw_sp_vrs_fini(mlxsw_sp
);
3767 mlxsw_sp_lpm_fini(mlxsw_sp
);
3769 rhashtable_destroy(&mlxsw_sp
->router
->nexthop_group_ht
);
3770 err_nexthop_group_ht_init
:
3771 rhashtable_destroy(&mlxsw_sp
->router
->nexthop_ht
);
3772 err_nexthop_ht_init
:
3773 mlxsw_sp_rifs_fini(mlxsw_sp
);
3775 __mlxsw_sp_router_fini(mlxsw_sp
);
3777 kfree(mlxsw_sp
->router
);
3781 void mlxsw_sp_router_fini(struct mlxsw_sp
*mlxsw_sp
)
3783 unregister_fib_notifier(&mlxsw_sp
->router
->fib_nb
);
3784 mlxsw_sp_neigh_fini(mlxsw_sp
);
3785 mlxsw_sp_vrs_fini(mlxsw_sp
);
3786 mlxsw_sp_lpm_fini(mlxsw_sp
);
3787 rhashtable_destroy(&mlxsw_sp
->router
->nexthop_group_ht
);
3788 rhashtable_destroy(&mlxsw_sp
->router
->nexthop_ht
);
3789 mlxsw_sp_rifs_fini(mlxsw_sp
);
3790 __mlxsw_sp_router_fini(mlxsw_sp
);
3791 kfree(mlxsw_sp
->router
);