2 * drivers/net/ethernet/mellanox/mlxsw/spectrum.h
3 * Copyright (c) 2015 Mellanox Technologies. All rights reserved.
4 * Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
5 * Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com>
6 * Copyright (c) 2015 Elad Raz <eladr@mellanox.com>
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 #ifndef _MLXSW_SPECTRUM_H
38 #define _MLXSW_SPECTRUM_H
40 #include <linux/types.h>
41 #include <linux/netdevice.h>
42 #include <linux/rhashtable.h>
43 #include <linux/bitops.h>
44 #include <linux/if_vlan.h>
45 #include <linux/list.h>
46 #include <linux/dcbnl.h>
47 #include <linux/in6.h>
48 #include <net/switchdev.h>
53 #define MLXSW_SP_VFID_BASE VLAN_N_VID
54 #define MLXSW_SP_VFID_MAX 6656 /* Bridged VLAN interfaces */
56 #define MLXSW_SP_RFID_BASE 15360
57 #define MLXSW_SP_RIF_MAX 800
59 #define MLXSW_SP_LAG_MAX 64
60 #define MLXSW_SP_PORT_PER_LAG_MAX 16
62 #define MLXSW_SP_MID_MAX 7000
64 #define MLXSW_SP_PORTS_PER_CLUSTER_MAX 4
66 #define MLXSW_SP_LPM_TREE_MIN 2 /* trees 0 and 1 are reserved */
67 #define MLXSW_SP_LPM_TREE_MAX 22
68 #define MLXSW_SP_LPM_TREE_COUNT (MLXSW_SP_LPM_TREE_MAX - MLXSW_SP_LPM_TREE_MIN)
70 #define MLXSW_SP_VIRTUAL_ROUTER_MAX 256
72 #define MLXSW_SP_PORT_BASE_SPEED 25000 /* Mb/s */
74 #define MLXSW_SP_BYTES_PER_CELL 96
76 #define MLXSW_SP_BYTES_TO_CELLS(b) DIV_ROUND_UP(b, MLXSW_SP_BYTES_PER_CELL)
77 #define MLXSW_SP_CELLS_TO_BYTES(c) (c * MLXSW_SP_BYTES_PER_CELL)
79 #define MLXSW_SP_KVD_LINEAR_SIZE 65536 /* entries */
80 #define MLXSW_SP_KVD_HASH_SINGLE_SIZE 163840 /* entries */
81 #define MLXSW_SP_KVD_HASH_DOUBLE_SIZE 32768 /* entries */
83 /* Maximum delay buffer needed in case of PAUSE frames, in cells.
84 * Assumes 100m cable and maximum MTU.
86 #define MLXSW_SP_PAUSE_DELAY 612
88 #define MLXSW_SP_CELL_FACTOR 2 /* 2 * cell_size / (IPG + cell_size + 1) */
90 static inline u16 mlxsw_sp_pfc_delay_get(int mtu, u16 delay)
92 delay = MLXSW_SP_BYTES_TO_CELLS(DIV_ROUND_UP(delay, BITS_PER_BYTE));
93 return MLXSW_SP_CELL_FACTOR * delay + MLXSW_SP_BYTES_TO_CELLS(mtu);
98 struct mlxsw_sp_upper {
99 struct net_device *dev;
100 unsigned int ref_count;
103 struct mlxsw_sp_fid {
104 void (*leave)(struct mlxsw_sp_port *mlxsw_sp_vport);
105 struct list_head list;
106 unsigned int ref_count;
107 struct net_device *dev;
108 struct mlxsw_sp_rif *r;
112 struct mlxsw_sp_rif {
113 struct net_device *dev;
114 unsigned int ref_count;
115 struct mlxsw_sp_fid *f;
116 unsigned char addr[ETH_ALEN];
121 struct mlxsw_sp_mid {
122 struct list_head list;
123 unsigned char addr[ETH_ALEN];
126 unsigned int ref_count;
129 static inline u16 mlxsw_sp_vfid_to_fid(u16 vfid)
131 return MLXSW_SP_VFID_BASE + vfid;
134 static inline u16 mlxsw_sp_fid_to_vfid(u16 fid)
136 return fid - MLXSW_SP_VFID_BASE;
139 static inline bool mlxsw_sp_fid_is_vfid(u16 fid)
141 return fid >= MLXSW_SP_VFID_BASE && fid < MLXSW_SP_RFID_BASE;
144 static inline bool mlxsw_sp_fid_is_rfid(u16 fid)
146 return fid >= MLXSW_SP_RFID_BASE;
149 static inline u16 mlxsw_sp_rif_sp_to_fid(u16 rif)
151 return MLXSW_SP_RFID_BASE + rif;
154 struct mlxsw_sp_sb_pr {
155 enum mlxsw_reg_sbpr_mode mode;
159 struct mlxsw_cp_sb_occ {
164 struct mlxsw_sp_sb_cm {
168 struct mlxsw_cp_sb_occ occ;
171 struct mlxsw_sp_sb_pm {
174 struct mlxsw_cp_sb_occ occ;
177 #define MLXSW_SP_SB_POOL_COUNT 4
178 #define MLXSW_SP_SB_TC_COUNT 8
181 struct mlxsw_sp_sb_pr prs[2][MLXSW_SP_SB_POOL_COUNT];
183 struct mlxsw_sp_sb_cm cms[2][MLXSW_SP_SB_TC_COUNT];
184 struct mlxsw_sp_sb_pm pms[2][MLXSW_SP_SB_POOL_COUNT];
185 } ports[MLXSW_PORT_MAX_PORTS];
188 #define MLXSW_SP_PREFIX_COUNT (sizeof(struct in6_addr) * BITS_PER_BYTE)
190 struct mlxsw_sp_prefix_usage {
191 DECLARE_BITMAP(b, MLXSW_SP_PREFIX_COUNT);
194 enum mlxsw_sp_l3proto {
195 MLXSW_SP_L3_PROTO_IPV4,
196 MLXSW_SP_L3_PROTO_IPV6,
199 struct mlxsw_sp_lpm_tree {
201 unsigned int ref_count;
202 enum mlxsw_sp_l3proto proto;
203 struct mlxsw_sp_prefix_usage prefix_usage;
209 u16 id; /* virtual router ID */
211 enum mlxsw_sp_l3proto proto;
212 u32 tb_id; /* kernel fib table id */
213 struct mlxsw_sp_lpm_tree *lpm_tree;
214 struct mlxsw_sp_fib *fib;
217 struct mlxsw_sp_router {
218 struct mlxsw_sp_lpm_tree lpm_trees[MLXSW_SP_LPM_TREE_COUNT];
219 struct mlxsw_sp_vr vrs[MLXSW_SP_VIRTUAL_ROUTER_MAX];
220 struct rhashtable neigh_ht;
222 struct delayed_work dw;
223 unsigned long interval; /* ms */
225 struct list_head nexthop_group_list;
226 struct list_head nexthop_neighs_list;
231 struct list_head list;
232 DECLARE_BITMAP(mapped, MLXSW_SP_VFID_MAX);
235 struct list_head list;
236 DECLARE_BITMAP(mapped, MLXSW_SP_MID_MAX);
238 struct list_head fids; /* VLAN-aware bridge FIDs */
239 struct mlxsw_sp_rif *rifs[MLXSW_SP_RIF_MAX];
240 struct mlxsw_sp_port **ports;
241 struct mlxsw_core *core;
242 const struct mlxsw_bus_info *bus_info;
243 unsigned char base_mac[ETH_ALEN];
245 struct delayed_work dw;
246 #define MLXSW_SP_DEFAULT_LEARNING_INTERVAL 100
247 unsigned int interval; /* ms */
249 #define MLXSW_SP_MIN_AGEING_TIME 10
250 #define MLXSW_SP_MAX_AGEING_TIME 1000000
251 #define MLXSW_SP_DEFAULT_AGEING_TIME 300
253 struct mlxsw_sp_upper master_bridge;
254 struct mlxsw_sp_upper lags[MLXSW_SP_LAG_MAX];
255 u8 port_to_module[MLXSW_PORT_MAX_PORTS];
256 struct mlxsw_sp_sb sb;
257 struct mlxsw_sp_router router;
259 DECLARE_BITMAP(usage, MLXSW_SP_KVD_LINEAR_SIZE);
263 static inline struct mlxsw_sp_upper *
264 mlxsw_sp_lag_get(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
266 return &mlxsw_sp->lags[lag_id];
269 struct mlxsw_sp_port_pcpu_stats {
274 struct u64_stats_sync syncp;
278 struct mlxsw_sp_port {
279 struct mlxsw_core_port core_port; /* must be first */
280 struct net_device *dev;
281 struct mlxsw_sp_port_pcpu_stats __percpu *pcpu_stats;
282 struct mlxsw_sp *mlxsw_sp;
294 struct list_head list;
295 struct mlxsw_sp_fid *f;
303 struct ieee_ets *ets;
304 struct ieee_maxrate *maxrate;
305 struct ieee_pfc *pfc;
312 /* 802.1Q bridge VLANs */
313 unsigned long *active_vlans;
314 unsigned long *untagged_vlans;
315 /* VLAN interfaces */
316 struct list_head vports_list;
319 struct mlxsw_sp_port *mlxsw_sp_port_lower_dev_hold(struct net_device *dev);
320 void mlxsw_sp_port_dev_put(struct mlxsw_sp_port *mlxsw_sp_port);
323 mlxsw_sp_port_is_pause_en(const struct mlxsw_sp_port *mlxsw_sp_port)
325 return mlxsw_sp_port->link.tx_pause || mlxsw_sp_port->link.rx_pause;
328 static inline struct mlxsw_sp_port *
329 mlxsw_sp_port_lagged_get(struct mlxsw_sp *mlxsw_sp, u16 lag_id, u8 port_index)
331 struct mlxsw_sp_port *mlxsw_sp_port;
334 local_port = mlxsw_core_lag_mapping_get(mlxsw_sp->core,
336 mlxsw_sp_port = mlxsw_sp->ports[local_port];
337 return mlxsw_sp_port && mlxsw_sp_port->lagged ? mlxsw_sp_port : NULL;
341 mlxsw_sp_vport_vid_get(const struct mlxsw_sp_port *mlxsw_sp_vport)
343 return mlxsw_sp_vport->vport.vid;
347 mlxsw_sp_port_is_vport(const struct mlxsw_sp_port *mlxsw_sp_port)
349 u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
354 static inline void mlxsw_sp_vport_fid_set(struct mlxsw_sp_port *mlxsw_sp_vport,
355 struct mlxsw_sp_fid *f)
357 mlxsw_sp_vport->vport.f = f;
360 static inline struct mlxsw_sp_fid *
361 mlxsw_sp_vport_fid_get(const struct mlxsw_sp_port *mlxsw_sp_vport)
363 return mlxsw_sp_vport->vport.f;
366 static inline struct net_device *
367 mlxsw_sp_vport_dev_get(const struct mlxsw_sp_port *mlxsw_sp_vport)
369 struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
371 return f ? f->dev : NULL;
374 static inline struct mlxsw_sp_port *
375 mlxsw_sp_port_vport_find(const struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
377 struct mlxsw_sp_port *mlxsw_sp_vport;
379 list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list,
381 if (mlxsw_sp_vport_vid_get(mlxsw_sp_vport) == vid)
382 return mlxsw_sp_vport;
388 static inline struct mlxsw_sp_port *
389 mlxsw_sp_port_vport_find_by_fid(const struct mlxsw_sp_port *mlxsw_sp_port,
392 struct mlxsw_sp_port *mlxsw_sp_vport;
394 list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list,
396 struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
398 if (f && f->fid == fid)
399 return mlxsw_sp_vport;
405 static inline struct mlxsw_sp_fid *mlxsw_sp_fid_find(struct mlxsw_sp *mlxsw_sp,
408 struct mlxsw_sp_fid *f;
410 list_for_each_entry(f, &mlxsw_sp->fids, list)
417 static inline struct mlxsw_sp_fid *
418 mlxsw_sp_vfid_find(const struct mlxsw_sp *mlxsw_sp,
419 const struct net_device *br_dev)
421 struct mlxsw_sp_fid *f;
423 list_for_each_entry(f, &mlxsw_sp->vfids.list, list)
424 if (f->dev == br_dev)
430 static inline struct mlxsw_sp_rif *
431 mlxsw_sp_rif_find_by_dev(const struct mlxsw_sp *mlxsw_sp,
432 const struct net_device *dev)
436 for (i = 0; i < MLXSW_SP_RIF_MAX; i++)
437 if (mlxsw_sp->rifs[i] && mlxsw_sp->rifs[i]->dev == dev)
438 return mlxsw_sp->rifs[i];
443 enum mlxsw_sp_flood_table {
444 MLXSW_SP_FLOOD_TABLE_UC,
445 MLXSW_SP_FLOOD_TABLE_BM,
448 int mlxsw_sp_buffers_init(struct mlxsw_sp *mlxsw_sp);
449 void mlxsw_sp_buffers_fini(struct mlxsw_sp *mlxsw_sp);
450 int mlxsw_sp_port_buffers_init(struct mlxsw_sp_port *mlxsw_sp_port);
451 int mlxsw_sp_sb_pool_get(struct mlxsw_core *mlxsw_core,
452 unsigned int sb_index, u16 pool_index,
453 struct devlink_sb_pool_info *pool_info);
454 int mlxsw_sp_sb_pool_set(struct mlxsw_core *mlxsw_core,
455 unsigned int sb_index, u16 pool_index, u32 size,
456 enum devlink_sb_threshold_type threshold_type);
457 int mlxsw_sp_sb_port_pool_get(struct mlxsw_core_port *mlxsw_core_port,
458 unsigned int sb_index, u16 pool_index,
460 int mlxsw_sp_sb_port_pool_set(struct mlxsw_core_port *mlxsw_core_port,
461 unsigned int sb_index, u16 pool_index,
463 int mlxsw_sp_sb_tc_pool_bind_get(struct mlxsw_core_port *mlxsw_core_port,
464 unsigned int sb_index, u16 tc_index,
465 enum devlink_sb_pool_type pool_type,
466 u16 *p_pool_index, u32 *p_threshold);
467 int mlxsw_sp_sb_tc_pool_bind_set(struct mlxsw_core_port *mlxsw_core_port,
468 unsigned int sb_index, u16 tc_index,
469 enum devlink_sb_pool_type pool_type,
470 u16 pool_index, u32 threshold);
471 int mlxsw_sp_sb_occ_snapshot(struct mlxsw_core *mlxsw_core,
472 unsigned int sb_index);
473 int mlxsw_sp_sb_occ_max_clear(struct mlxsw_core *mlxsw_core,
474 unsigned int sb_index);
475 int mlxsw_sp_sb_occ_port_pool_get(struct mlxsw_core_port *mlxsw_core_port,
476 unsigned int sb_index, u16 pool_index,
477 u32 *p_cur, u32 *p_max);
478 int mlxsw_sp_sb_occ_tc_port_bind_get(struct mlxsw_core_port *mlxsw_core_port,
479 unsigned int sb_index, u16 tc_index,
480 enum devlink_sb_pool_type pool_type,
481 u32 *p_cur, u32 *p_max);
483 int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp);
484 void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp);
485 int mlxsw_sp_port_vlan_init(struct mlxsw_sp_port *mlxsw_sp_port);
486 void mlxsw_sp_port_switchdev_init(struct mlxsw_sp_port *mlxsw_sp_port);
487 void mlxsw_sp_port_switchdev_fini(struct mlxsw_sp_port *mlxsw_sp_port);
488 int mlxsw_sp_port_vid_to_fid_set(struct mlxsw_sp_port *mlxsw_sp_port,
489 enum mlxsw_reg_svfa_mt mt, bool valid, u16 fid,
491 int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin,
492 u16 vid_end, bool is_member, bool untagged);
493 int mlxsw_sp_port_add_vid(struct net_device *dev, __be16 __always_unused proto,
495 int mlxsw_sp_vport_flood_set(struct mlxsw_sp_port *mlxsw_sp_vport, u16 fid,
497 void mlxsw_sp_port_active_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port);
498 int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid);
499 int mlxsw_sp_port_fdb_flush(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid);
500 int mlxsw_sp_rif_fdb_op(struct mlxsw_sp *mlxsw_sp, const char *mac, u16 fid,
502 struct mlxsw_sp_fid *mlxsw_sp_fid_create(struct mlxsw_sp *mlxsw_sp, u16 fid);
503 void mlxsw_sp_fid_destroy(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fid *f);
504 void mlxsw_sp_rif_bridge_destroy(struct mlxsw_sp *mlxsw_sp,
505 struct mlxsw_sp_rif *r);
506 int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port,
507 enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index,
508 bool dwrr, u8 dwrr_weight);
509 int mlxsw_sp_port_prio_tc_set(struct mlxsw_sp_port *mlxsw_sp_port,
510 u8 switch_prio, u8 tclass);
511 int __mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, int mtu,
512 u8 *prio_tc, bool pause_en,
513 struct ieee_pfc *my_pfc);
514 int mlxsw_sp_port_ets_maxrate_set(struct mlxsw_sp_port *mlxsw_sp_port,
515 enum mlxsw_reg_qeec_hr hr, u8 index,
516 u8 next_index, u32 maxrate);
518 #ifdef CONFIG_MLXSW_SPECTRUM_DCB
520 int mlxsw_sp_port_dcb_init(struct mlxsw_sp_port *mlxsw_sp_port);
521 void mlxsw_sp_port_dcb_fini(struct mlxsw_sp_port *mlxsw_sp_port);
525 static inline int mlxsw_sp_port_dcb_init(struct mlxsw_sp_port *mlxsw_sp_port)
530 static inline void mlxsw_sp_port_dcb_fini(struct mlxsw_sp_port *mlxsw_sp_port)
535 int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp);
536 void mlxsw_sp_router_fini(struct mlxsw_sp *mlxsw_sp);
537 int mlxsw_sp_router_fib4_add(struct mlxsw_sp_port *mlxsw_sp_port,
538 const struct switchdev_obj_ipv4_fib *fib4,
539 struct switchdev_trans *trans);
540 int mlxsw_sp_router_fib4_del(struct mlxsw_sp_port *mlxsw_sp_port,
541 const struct switchdev_obj_ipv4_fib *fib4);
542 int mlxsw_sp_router_neigh_construct(struct net_device *dev,
543 struct neighbour *n);
544 void mlxsw_sp_router_neigh_destroy(struct net_device *dev,
545 struct neighbour *n);
547 int mlxsw_sp_kvdl_alloc(struct mlxsw_sp *mlxsw_sp, unsigned int entry_count);
548 void mlxsw_sp_kvdl_free(struct mlxsw_sp *mlxsw_sp, int entry_index);