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 /* Maximum delay buffer needed in case of PAUSE frames, in cells.
80 * Assumes 100m cable and maximum MTU.
82 #define MLXSW_SP_PAUSE_DELAY 612
84 #define MLXSW_SP_CELL_FACTOR 2 /* 2 * cell_size / (IPG + cell_size + 1) */
86 static inline u16 mlxsw_sp_pfc_delay_get(int mtu, u16 delay)
88 delay = MLXSW_SP_BYTES_TO_CELLS(DIV_ROUND_UP(delay, BITS_PER_BYTE));
89 return MLXSW_SP_CELL_FACTOR * delay + MLXSW_SP_BYTES_TO_CELLS(mtu);
94 struct mlxsw_sp_upper {
95 struct net_device *dev;
96 unsigned int ref_count;
100 void (*leave)(struct mlxsw_sp_port *mlxsw_sp_vport);
101 struct list_head list;
102 unsigned int ref_count;
103 struct net_device *dev;
104 struct mlxsw_sp_rif *r;
108 struct mlxsw_sp_rif {
109 struct net_device *dev;
110 unsigned int ref_count;
111 struct mlxsw_sp_fid *f;
112 unsigned char addr[ETH_ALEN];
117 struct mlxsw_sp_mid {
118 struct list_head list;
119 unsigned char addr[ETH_ALEN];
122 unsigned int ref_count;
125 static inline u16 mlxsw_sp_vfid_to_fid(u16 vfid)
127 return MLXSW_SP_VFID_BASE + vfid;
130 static inline u16 mlxsw_sp_fid_to_vfid(u16 fid)
132 return fid - MLXSW_SP_VFID_BASE;
135 static inline bool mlxsw_sp_fid_is_vfid(u16 fid)
137 return fid >= MLXSW_SP_VFID_BASE && fid < MLXSW_SP_RFID_BASE;
140 static inline bool mlxsw_sp_fid_is_rfid(u16 fid)
142 return fid >= MLXSW_SP_RFID_BASE;
145 static inline u16 mlxsw_sp_rif_sp_to_fid(u16 rif)
147 return MLXSW_SP_RFID_BASE + rif;
150 struct mlxsw_sp_sb_pr {
151 enum mlxsw_reg_sbpr_mode mode;
155 struct mlxsw_cp_sb_occ {
160 struct mlxsw_sp_sb_cm {
164 struct mlxsw_cp_sb_occ occ;
167 struct mlxsw_sp_sb_pm {
170 struct mlxsw_cp_sb_occ occ;
173 #define MLXSW_SP_SB_POOL_COUNT 4
174 #define MLXSW_SP_SB_TC_COUNT 8
177 struct mlxsw_sp_sb_pr prs[2][MLXSW_SP_SB_POOL_COUNT];
179 struct mlxsw_sp_sb_cm cms[2][MLXSW_SP_SB_TC_COUNT];
180 struct mlxsw_sp_sb_pm pms[2][MLXSW_SP_SB_POOL_COUNT];
181 } ports[MLXSW_PORT_MAX_PORTS];
184 #define MLXSW_SP_PREFIX_COUNT (sizeof(struct in6_addr) * BITS_PER_BYTE)
186 struct mlxsw_sp_prefix_usage {
187 DECLARE_BITMAP(b, MLXSW_SP_PREFIX_COUNT);
190 enum mlxsw_sp_l3proto {
191 MLXSW_SP_L3_PROTO_IPV4,
192 MLXSW_SP_L3_PROTO_IPV6,
195 struct mlxsw_sp_lpm_tree {
197 unsigned int ref_count;
198 enum mlxsw_sp_l3proto proto;
199 struct mlxsw_sp_prefix_usage prefix_usage;
205 u16 id; /* virtual router ID */
207 enum mlxsw_sp_l3proto proto;
208 u32 tb_id; /* kernel fib table id */
209 struct mlxsw_sp_lpm_tree *lpm_tree;
210 struct mlxsw_sp_fib *fib;
213 struct mlxsw_sp_router {
214 struct mlxsw_sp_lpm_tree lpm_trees[MLXSW_SP_LPM_TREE_COUNT];
215 struct mlxsw_sp_vr vrs[MLXSW_SP_VIRTUAL_ROUTER_MAX];
216 struct rhashtable neigh_ht;
221 struct list_head list;
222 DECLARE_BITMAP(mapped, MLXSW_SP_VFID_MAX);
225 struct list_head list;
226 DECLARE_BITMAP(mapped, MLXSW_SP_MID_MAX);
228 struct list_head fids; /* VLAN-aware bridge FIDs */
229 struct mlxsw_sp_rif *rifs[MLXSW_SP_RIF_MAX];
230 struct mlxsw_sp_port **ports;
231 struct mlxsw_core *core;
232 const struct mlxsw_bus_info *bus_info;
233 unsigned char base_mac[ETH_ALEN];
235 struct delayed_work dw;
236 #define MLXSW_SP_DEFAULT_LEARNING_INTERVAL 100
237 unsigned int interval; /* ms */
239 #define MLXSW_SP_MIN_AGEING_TIME 10
240 #define MLXSW_SP_MAX_AGEING_TIME 1000000
241 #define MLXSW_SP_DEFAULT_AGEING_TIME 300
243 struct mlxsw_sp_upper master_bridge;
244 struct mlxsw_sp_upper lags[MLXSW_SP_LAG_MAX];
245 u8 port_to_module[MLXSW_PORT_MAX_PORTS];
246 struct mlxsw_sp_sb sb;
247 struct mlxsw_sp_router router;
250 static inline struct mlxsw_sp_upper *
251 mlxsw_sp_lag_get(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
253 return &mlxsw_sp->lags[lag_id];
256 struct mlxsw_sp_port_pcpu_stats {
261 struct u64_stats_sync syncp;
265 struct mlxsw_sp_port {
266 struct mlxsw_core_port core_port; /* must be first */
267 struct net_device *dev;
268 struct mlxsw_sp_port_pcpu_stats __percpu *pcpu_stats;
269 struct mlxsw_sp *mlxsw_sp;
281 struct list_head list;
282 struct mlxsw_sp_fid *f;
290 struct ieee_ets *ets;
291 struct ieee_maxrate *maxrate;
292 struct ieee_pfc *pfc;
299 /* 802.1Q bridge VLANs */
300 unsigned long *active_vlans;
301 unsigned long *untagged_vlans;
302 /* VLAN interfaces */
303 struct list_head vports_list;
306 struct mlxsw_sp_port *mlxsw_sp_port_lower_dev_hold(struct net_device *dev);
307 void mlxsw_sp_port_dev_put(struct mlxsw_sp_port *mlxsw_sp_port);
310 mlxsw_sp_port_is_pause_en(const struct mlxsw_sp_port *mlxsw_sp_port)
312 return mlxsw_sp_port->link.tx_pause || mlxsw_sp_port->link.rx_pause;
315 static inline struct mlxsw_sp_port *
316 mlxsw_sp_port_lagged_get(struct mlxsw_sp *mlxsw_sp, u16 lag_id, u8 port_index)
318 struct mlxsw_sp_port *mlxsw_sp_port;
321 local_port = mlxsw_core_lag_mapping_get(mlxsw_sp->core,
323 mlxsw_sp_port = mlxsw_sp->ports[local_port];
324 return mlxsw_sp_port && mlxsw_sp_port->lagged ? mlxsw_sp_port : NULL;
328 mlxsw_sp_vport_vid_get(const struct mlxsw_sp_port *mlxsw_sp_vport)
330 return mlxsw_sp_vport->vport.vid;
334 mlxsw_sp_port_is_vport(const struct mlxsw_sp_port *mlxsw_sp_port)
336 u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
341 static inline void mlxsw_sp_vport_fid_set(struct mlxsw_sp_port *mlxsw_sp_vport,
342 struct mlxsw_sp_fid *f)
344 mlxsw_sp_vport->vport.f = f;
347 static inline struct mlxsw_sp_fid *
348 mlxsw_sp_vport_fid_get(const struct mlxsw_sp_port *mlxsw_sp_vport)
350 return mlxsw_sp_vport->vport.f;
353 static inline struct net_device *
354 mlxsw_sp_vport_dev_get(const struct mlxsw_sp_port *mlxsw_sp_vport)
356 struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
358 return f ? f->dev : NULL;
361 static inline struct mlxsw_sp_port *
362 mlxsw_sp_port_vport_find(const struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
364 struct mlxsw_sp_port *mlxsw_sp_vport;
366 list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list,
368 if (mlxsw_sp_vport_vid_get(mlxsw_sp_vport) == vid)
369 return mlxsw_sp_vport;
375 static inline struct mlxsw_sp_port *
376 mlxsw_sp_port_vport_find_by_fid(const struct mlxsw_sp_port *mlxsw_sp_port,
379 struct mlxsw_sp_port *mlxsw_sp_vport;
381 list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list,
383 struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
385 if (f && f->fid == fid)
386 return mlxsw_sp_vport;
392 static inline struct mlxsw_sp_fid *mlxsw_sp_fid_find(struct mlxsw_sp *mlxsw_sp,
395 struct mlxsw_sp_fid *f;
397 list_for_each_entry(f, &mlxsw_sp->fids, list)
404 static inline struct mlxsw_sp_fid *
405 mlxsw_sp_vfid_find(const struct mlxsw_sp *mlxsw_sp,
406 const struct net_device *br_dev)
408 struct mlxsw_sp_fid *f;
410 list_for_each_entry(f, &mlxsw_sp->vfids.list, list)
411 if (f->dev == br_dev)
417 static inline struct mlxsw_sp_rif *
418 mlxsw_sp_rif_find_by_dev(const struct mlxsw_sp *mlxsw_sp,
419 const struct net_device *dev)
423 for (i = 0; i < MLXSW_SP_RIF_MAX; i++)
424 if (mlxsw_sp->rifs[i] && mlxsw_sp->rifs[i]->dev == dev)
425 return mlxsw_sp->rifs[i];
430 enum mlxsw_sp_flood_table {
431 MLXSW_SP_FLOOD_TABLE_UC,
432 MLXSW_SP_FLOOD_TABLE_BM,
435 int mlxsw_sp_buffers_init(struct mlxsw_sp *mlxsw_sp);
436 void mlxsw_sp_buffers_fini(struct mlxsw_sp *mlxsw_sp);
437 int mlxsw_sp_port_buffers_init(struct mlxsw_sp_port *mlxsw_sp_port);
438 int mlxsw_sp_sb_pool_get(struct mlxsw_core *mlxsw_core,
439 unsigned int sb_index, u16 pool_index,
440 struct devlink_sb_pool_info *pool_info);
441 int mlxsw_sp_sb_pool_set(struct mlxsw_core *mlxsw_core,
442 unsigned int sb_index, u16 pool_index, u32 size,
443 enum devlink_sb_threshold_type threshold_type);
444 int mlxsw_sp_sb_port_pool_get(struct mlxsw_core_port *mlxsw_core_port,
445 unsigned int sb_index, u16 pool_index,
447 int mlxsw_sp_sb_port_pool_set(struct mlxsw_core_port *mlxsw_core_port,
448 unsigned int sb_index, u16 pool_index,
450 int mlxsw_sp_sb_tc_pool_bind_get(struct mlxsw_core_port *mlxsw_core_port,
451 unsigned int sb_index, u16 tc_index,
452 enum devlink_sb_pool_type pool_type,
453 u16 *p_pool_index, u32 *p_threshold);
454 int mlxsw_sp_sb_tc_pool_bind_set(struct mlxsw_core_port *mlxsw_core_port,
455 unsigned int sb_index, u16 tc_index,
456 enum devlink_sb_pool_type pool_type,
457 u16 pool_index, u32 threshold);
458 int mlxsw_sp_sb_occ_snapshot(struct mlxsw_core *mlxsw_core,
459 unsigned int sb_index);
460 int mlxsw_sp_sb_occ_max_clear(struct mlxsw_core *mlxsw_core,
461 unsigned int sb_index);
462 int mlxsw_sp_sb_occ_port_pool_get(struct mlxsw_core_port *mlxsw_core_port,
463 unsigned int sb_index, u16 pool_index,
464 u32 *p_cur, u32 *p_max);
465 int mlxsw_sp_sb_occ_tc_port_bind_get(struct mlxsw_core_port *mlxsw_core_port,
466 unsigned int sb_index, u16 tc_index,
467 enum devlink_sb_pool_type pool_type,
468 u32 *p_cur, u32 *p_max);
470 int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp);
471 void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp);
472 int mlxsw_sp_port_vlan_init(struct mlxsw_sp_port *mlxsw_sp_port);
473 void mlxsw_sp_port_switchdev_init(struct mlxsw_sp_port *mlxsw_sp_port);
474 void mlxsw_sp_port_switchdev_fini(struct mlxsw_sp_port *mlxsw_sp_port);
475 int mlxsw_sp_port_vid_to_fid_set(struct mlxsw_sp_port *mlxsw_sp_port,
476 enum mlxsw_reg_svfa_mt mt, bool valid, u16 fid,
478 int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin,
479 u16 vid_end, bool is_member, bool untagged);
480 int mlxsw_sp_port_add_vid(struct net_device *dev, __be16 __always_unused proto,
482 int mlxsw_sp_vport_flood_set(struct mlxsw_sp_port *mlxsw_sp_vport, u16 fid,
484 void mlxsw_sp_port_active_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port);
485 int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid);
486 int mlxsw_sp_port_fdb_flush(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid);
487 int mlxsw_sp_rif_fdb_op(struct mlxsw_sp *mlxsw_sp, const char *mac, u16 fid,
489 struct mlxsw_sp_fid *mlxsw_sp_fid_create(struct mlxsw_sp *mlxsw_sp, u16 fid);
490 void mlxsw_sp_fid_destroy(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fid *f);
491 void mlxsw_sp_rif_bridge_destroy(struct mlxsw_sp *mlxsw_sp,
492 struct mlxsw_sp_rif *r);
493 int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port,
494 enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index,
495 bool dwrr, u8 dwrr_weight);
496 int mlxsw_sp_port_prio_tc_set(struct mlxsw_sp_port *mlxsw_sp_port,
497 u8 switch_prio, u8 tclass);
498 int __mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, int mtu,
499 u8 *prio_tc, bool pause_en,
500 struct ieee_pfc *my_pfc);
501 int mlxsw_sp_port_ets_maxrate_set(struct mlxsw_sp_port *mlxsw_sp_port,
502 enum mlxsw_reg_qeec_hr hr, u8 index,
503 u8 next_index, u32 maxrate);
505 #ifdef CONFIG_MLXSW_SPECTRUM_DCB
507 int mlxsw_sp_port_dcb_init(struct mlxsw_sp_port *mlxsw_sp_port);
508 void mlxsw_sp_port_dcb_fini(struct mlxsw_sp_port *mlxsw_sp_port);
512 static inline int mlxsw_sp_port_dcb_init(struct mlxsw_sp_port *mlxsw_sp_port)
517 static inline void mlxsw_sp_port_dcb_fini(struct mlxsw_sp_port *mlxsw_sp_port)
522 int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp);
523 void mlxsw_sp_router_fini(struct mlxsw_sp *mlxsw_sp);
524 int mlxsw_sp_router_fib4_add(struct mlxsw_sp_port *mlxsw_sp_port,
525 const struct switchdev_obj_ipv4_fib *fib4,
526 struct switchdev_trans *trans);
527 int mlxsw_sp_router_fib4_del(struct mlxsw_sp_port *mlxsw_sp_port,
528 const struct switchdev_obj_ipv4_fib *fib4);
529 int mlxsw_sp_router_neigh_construct(struct net_device *dev,
530 struct neighbour *n);
531 void mlxsw_sp_router_neigh_destroy(struct net_device *dev,
532 struct neighbour *n);