1 /*
2  * Copyright (c) 2015, Mellanox Technologies, Ltd.  All rights reserved.
3  *
4  * This software is available to you under a choice of one of two
5  * licenses.  You may choose to be licensed under the terms of the GNU
6  * General Public License (GPL) Version 2, available from the file
7  * COPYING in the main directory of this source tree, or the
8  * OpenIB.org BSD license below:
9  *
10  *     Redistribution and use in source and binary forms, with or
11  *     without modification, are permitted provided that the following
12  *     conditions are met:
13  *
14  *      - Redistributions of source code must retain the above
15  *        copyright notice, this list of conditions and the following
16  *        disclaimer.
17  *
18  *      - Redistributions in binary form must reproduce the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer in the documentation and/or other materials
21  *        provided with the distribution.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30  * SOFTWARE.
31  */
32 
33 #ifndef __MLX5_ESWITCH_H__
34 #define __MLX5_ESWITCH_H__
35 
36 #include <linux/if_ether.h>
37 #include <linux/if_link.h>
38 #include <linux/atomic.h>
39 #include <net/devlink.h>
40 #include <linux/mlx5/device.h>
41 #include <linux/mlx5/eswitch.h>
42 #include <linux/mlx5/vport.h>
43 #include <linux/mlx5/fs.h>
44 #include "lib/mpfs.h"
45 
46 #ifdef CONFIG_MLX5_ESWITCH
47 
48 #define MLX5_MAX_UC_PER_VPORT(dev) \
49 	(1 << MLX5_CAP_GEN(dev, log_max_current_uc_list))
50 
51 #define MLX5_MAX_MC_PER_VPORT(dev) \
52 	(1 << MLX5_CAP_GEN(dev, log_max_current_mc_list))
53 
54 #define MLX5_MIN_BW_SHARE 1
55 
56 #define MLX5_RATE_TO_BW_SHARE(rate, divider, limit) \
57 	min_t(u32, max_t(u32, (rate) / (divider), MLX5_MIN_BW_SHARE), limit)
58 
59 #define mlx5_esw_has_fwd_fdb(dev) \
60 	MLX5_CAP_ESW_FLOWTABLE(dev, fdb_multi_path_to_table)
61 
62 #define FDB_MAX_CHAIN 3
63 #define FDB_SLOW_PATH_CHAIN (FDB_MAX_CHAIN + 1)
64 #define FDB_MAX_PRIO 16
65 
66 struct vport_ingress {
67 	struct mlx5_flow_table *acl;
68 	struct mlx5_flow_group *allow_untagged_spoofchk_grp;
69 	struct mlx5_flow_group *allow_spoofchk_only_grp;
70 	struct mlx5_flow_group *allow_untagged_only_grp;
71 	struct mlx5_flow_group *drop_grp;
72 	struct mlx5_modify_hdr   *modify_metadata;
73 	struct mlx5_flow_handle  *modify_metadata_rule;
74 	struct mlx5_flow_handle  *allow_rule;
75 	struct mlx5_flow_handle  *drop_rule;
76 	struct mlx5_fc           *drop_counter;
77 };
78 
79 struct vport_egress {
80 	struct mlx5_flow_table *acl;
81 	struct mlx5_flow_group *allowed_vlans_grp;
82 	struct mlx5_flow_group *drop_grp;
83 	struct mlx5_flow_handle  *allowed_vlan;
84 	struct mlx5_flow_handle  *drop_rule;
85 	struct mlx5_fc           *drop_counter;
86 };
87 
88 struct mlx5_vport_drop_stats {
89 	u64 rx_dropped;
90 	u64 tx_dropped;
91 };
92 
93 struct mlx5_vport_info {
94 	u8                      mac[ETH_ALEN];
95 	u16                     vlan;
96 	u8                      qos;
97 	u64                     node_guid;
98 	int                     link_state;
99 	u32                     min_rate;
100 	u32                     max_rate;
101 	bool                    spoofchk;
102 	bool                    trusted;
103 };
104 
105 /* Vport context events */
106 enum mlx5_eswitch_vport_event {
107 	MLX5_VPORT_UC_ADDR_CHANGE = BIT(0),
108 	MLX5_VPORT_MC_ADDR_CHANGE = BIT(1),
109 	MLX5_VPORT_PROMISC_CHANGE = BIT(3),
110 };
111 
112 struct mlx5_vport {
113 	struct mlx5_core_dev    *dev;
114 	int                     vport;
115 	struct hlist_head       uc_list[MLX5_L2_ADDR_HASH_SIZE];
116 	struct hlist_head       mc_list[MLX5_L2_ADDR_HASH_SIZE];
117 	struct mlx5_flow_handle *promisc_rule;
118 	struct mlx5_flow_handle *allmulti_rule;
119 	struct work_struct      vport_change_handler;
120 
121 	struct vport_ingress    ingress;
122 	struct vport_egress     egress;
123 
124 	struct mlx5_vport_info  info;
125 
126 	struct {
127 		bool            enabled;
128 		u32             esw_tsar_ix;
129 		u32             bw_share;
130 	} qos;
131 
132 	bool                    enabled;
133 	enum mlx5_eswitch_vport_event enabled_events;
134 };
135 
136 enum offloads_fdb_flags {
137 	ESW_FDB_CHAINS_AND_PRIOS_SUPPORTED = BIT(0),
138 };
139 
140 extern const unsigned int ESW_POOLS[4];
141 
142 #define PRIO_LEVELS 2
143 struct mlx5_eswitch_fdb {
144 	union {
145 		struct legacy_fdb {
146 			struct mlx5_flow_table *fdb;
147 			struct mlx5_flow_group *addr_grp;
148 			struct mlx5_flow_group *allmulti_grp;
149 			struct mlx5_flow_group *promisc_grp;
150 			struct mlx5_flow_table *vepa_fdb;
151 			struct mlx5_flow_handle *vepa_uplink_rule;
152 			struct mlx5_flow_handle *vepa_star_rule;
153 		} legacy;
154 
155 		struct offloads_fdb {
156 			struct mlx5_flow_namespace *ns;
157 			struct mlx5_flow_table *slow_fdb;
158 			struct mlx5_flow_group *send_to_vport_grp;
159 			struct mlx5_flow_group *peer_miss_grp;
160 			struct mlx5_flow_handle **peer_miss_rules;
161 			struct mlx5_flow_group *miss_grp;
162 			struct mlx5_flow_handle *miss_rule_uni;
163 			struct mlx5_flow_handle *miss_rule_multi;
164 			int vlan_push_pop_refcount;
165 
166 			struct {
167 				struct mlx5_flow_table *fdb;
168 				u32 num_rules;
169 			} fdb_prio[FDB_MAX_CHAIN + 1][FDB_MAX_PRIO + 1][PRIO_LEVELS];
170 			/* Protects fdb_prio table */
171 			struct mutex fdb_prio_lock;
172 
173 			int fdb_left[ARRAY_SIZE(ESW_POOLS)];
174 		} offloads;
175 	};
176 	u32 flags;
177 };
178 
179 struct mlx5_esw_offload {
180 	struct mlx5_flow_table *ft_offloads;
181 	struct mlx5_flow_group *vport_rx_group;
182 	struct mlx5_eswitch_rep *vport_reps;
183 	struct list_head peer_flows;
184 	struct mutex peer_mutex;
185 	struct mutex encap_tbl_lock; /* protects encap_tbl */
186 	DECLARE_HASHTABLE(encap_tbl, 8);
187 	struct mod_hdr_tbl mod_hdr;
188 	DECLARE_HASHTABLE(termtbl_tbl, 8);
189 	struct mutex termtbl_mutex; /* protects termtbl hash */
190 	const struct mlx5_eswitch_rep_ops *rep_ops[NUM_REP_TYPES];
191 	u8 inline_mode;
192 	atomic64_t num_flows;
193 	enum devlink_eswitch_encap_mode encap;
194 };
195 
196 /* E-Switch MC FDB table hash node */
197 struct esw_mc_addr { /* SRIOV only */
198 	struct l2addr_node     node;
199 	struct mlx5_flow_handle *uplink_rule; /* Forward to uplink rule */
200 	u32                    refcnt;
201 };
202 
203 struct mlx5_host_work {
204 	struct work_struct	work;
205 	struct mlx5_eswitch	*esw;
206 };
207 
208 struct mlx5_esw_functions {
209 	struct mlx5_nb		nb;
210 	u16			num_vfs;
211 };
212 
213 enum {
214 	MLX5_ESWITCH_VPORT_MATCH_METADATA = BIT(0),
215 };
216 
217 struct mlx5_eswitch {
218 	struct mlx5_core_dev    *dev;
219 	struct mlx5_nb          nb;
220 	/* legacy data structures */
221 	struct mlx5_eswitch_fdb fdb_table;
222 	struct hlist_head       mc_table[MLX5_L2_ADDR_HASH_SIZE];
223 	struct esw_mc_addr mc_promisc;
224 	/* end of legacy */
225 	struct workqueue_struct *work_queue;
226 	struct mlx5_vport       *vports;
227 	u32 flags;
228 	int                     total_vports;
229 	int                     enabled_vports;
230 	/* Synchronize between vport change events
231 	 * and async SRIOV admin state changes
232 	 */
233 	struct mutex            state_lock;
234 
235 	struct {
236 		bool            enabled;
237 		u32             root_tsar_id;
238 	} qos;
239 
240 	struct mlx5_esw_offload offloads;
241 	int                     mode;
242 	int                     nvports;
243 	u16                     manager_vport;
244 	u16                     first_host_vport;
245 	struct mlx5_esw_functions esw_funcs;
246 };
247 
248 void esw_offloads_disable(struct mlx5_eswitch *esw);
249 int esw_offloads_enable(struct mlx5_eswitch *esw);
250 void esw_offloads_cleanup_reps(struct mlx5_eswitch *esw);
251 int esw_offloads_init_reps(struct mlx5_eswitch *esw);
252 void esw_vport_cleanup_ingress_rules(struct mlx5_eswitch *esw,
253 				     struct mlx5_vport *vport);
254 int esw_vport_enable_ingress_acl(struct mlx5_eswitch *esw,
255 				 struct mlx5_vport *vport);
256 void esw_vport_cleanup_egress_rules(struct mlx5_eswitch *esw,
257 				    struct mlx5_vport *vport);
258 int esw_vport_enable_egress_acl(struct mlx5_eswitch *esw,
259 				struct mlx5_vport *vport);
260 void esw_vport_disable_egress_acl(struct mlx5_eswitch *esw,
261 				  struct mlx5_vport *vport);
262 void esw_vport_disable_ingress_acl(struct mlx5_eswitch *esw,
263 				   struct mlx5_vport *vport);
264 void esw_vport_del_ingress_acl_modify_metadata(struct mlx5_eswitch *esw,
265 					       struct mlx5_vport *vport);
266 int mlx5_esw_modify_vport_rate(struct mlx5_eswitch *esw, u16 vport_num,
267 			       u32 rate_mbps);
268 
269 /* E-Switch API */
270 int mlx5_eswitch_init(struct mlx5_core_dev *dev);
271 void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw);
272 int mlx5_eswitch_enable(struct mlx5_eswitch *esw, int mode);
273 void mlx5_eswitch_disable(struct mlx5_eswitch *esw);
274 int mlx5_eswitch_set_vport_mac(struct mlx5_eswitch *esw,
275 			       u16 vport, u8 mac[ETH_ALEN]);
276 int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw,
277 				 u16 vport, int link_state);
278 int mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
279 				u16 vport, u16 vlan, u8 qos);
280 int mlx5_eswitch_set_vport_spoofchk(struct mlx5_eswitch *esw,
281 				    u16 vport, bool spoofchk);
282 int mlx5_eswitch_set_vport_trust(struct mlx5_eswitch *esw,
283 				 u16 vport_num, bool setting);
284 int mlx5_eswitch_set_vport_rate(struct mlx5_eswitch *esw, u16 vport,
285 				u32 max_rate, u32 min_rate);
286 int mlx5_eswitch_set_vepa(struct mlx5_eswitch *esw, u8 setting);
287 int mlx5_eswitch_get_vepa(struct mlx5_eswitch *esw, u8 *setting);
288 int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw,
289 				  u16 vport, struct ifla_vf_info *ivi);
290 int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,
291 				 u16 vport,
292 				 struct ifla_vf_stats *vf_stats);
293 void mlx5_eswitch_del_send_to_vport_rule(struct mlx5_flow_handle *rule);
294 
295 int mlx5_eswitch_modify_esw_vport_context(struct mlx5_eswitch *esw, u16 vport,
296 					  void *in, int inlen);
297 int mlx5_eswitch_query_esw_vport_context(struct mlx5_eswitch *esw, u16 vport,
298 					 void *out, int outlen);
299 
300 struct mlx5_flow_spec;
301 struct mlx5_esw_flow_attr;
302 struct mlx5_termtbl_handle;
303 
304 bool
305 mlx5_eswitch_termtbl_required(struct mlx5_eswitch *esw,
306 			      struct mlx5_flow_act *flow_act,
307 			      struct mlx5_flow_spec *spec);
308 
309 struct mlx5_flow_handle *
310 mlx5_eswitch_add_termtbl_rule(struct mlx5_eswitch *esw,
311 			      struct mlx5_flow_table *ft,
312 			      struct mlx5_flow_spec *spec,
313 			      struct mlx5_esw_flow_attr *attr,
314 			      struct mlx5_flow_act *flow_act,
315 			      struct mlx5_flow_destination *dest,
316 			      int num_dest);
317 
318 void
319 mlx5_eswitch_termtbl_put(struct mlx5_eswitch *esw,
320 			 struct mlx5_termtbl_handle *tt);
321 
322 struct mlx5_flow_handle *
323 mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw,
324 				struct mlx5_flow_spec *spec,
325 				struct mlx5_esw_flow_attr *attr);
326 struct mlx5_flow_handle *
327 mlx5_eswitch_add_fwd_rule(struct mlx5_eswitch *esw,
328 			  struct mlx5_flow_spec *spec,
329 			  struct mlx5_esw_flow_attr *attr);
330 void
331 mlx5_eswitch_del_offloaded_rule(struct mlx5_eswitch *esw,
332 				struct mlx5_flow_handle *rule,
333 				struct mlx5_esw_flow_attr *attr);
334 void
335 mlx5_eswitch_del_fwd_rule(struct mlx5_eswitch *esw,
336 			  struct mlx5_flow_handle *rule,
337 			  struct mlx5_esw_flow_attr *attr);
338 
339 bool
340 mlx5_eswitch_prios_supported(struct mlx5_eswitch *esw);
341 
342 u16
343 mlx5_eswitch_get_prio_range(struct mlx5_eswitch *esw);
344 
345 u32
346 mlx5_eswitch_get_chain_range(struct mlx5_eswitch *esw);
347 
348 struct mlx5_flow_handle *
349 mlx5_eswitch_create_vport_rx_rule(struct mlx5_eswitch *esw, u16 vport,
350 				  struct mlx5_flow_destination *dest);
351 
352 enum {
353 	SET_VLAN_STRIP	= BIT(0),
354 	SET_VLAN_INSERT	= BIT(1)
355 };
356 
357 enum mlx5_flow_match_level {
358 	MLX5_MATCH_NONE	= MLX5_INLINE_MODE_NONE,
359 	MLX5_MATCH_L2	= MLX5_INLINE_MODE_L2,
360 	MLX5_MATCH_L3	= MLX5_INLINE_MODE_IP,
361 	MLX5_MATCH_L4	= MLX5_INLINE_MODE_TCP_UDP,
362 };
363 
364 /* current maximum for flow based vport multicasting */
365 #define MLX5_MAX_FLOW_FWD_VPORTS 2
366 
367 enum {
368 	MLX5_ESW_DEST_ENCAP         = BIT(0),
369 	MLX5_ESW_DEST_ENCAP_VALID   = BIT(1),
370 };
371 
372 struct mlx5_esw_flow_attr {
373 	struct mlx5_eswitch_rep *in_rep;
374 	struct mlx5_core_dev	*in_mdev;
375 	struct mlx5_core_dev    *counter_dev;
376 
377 	int split_count;
378 	int out_count;
379 
380 	int	action;
381 	__be16	vlan_proto[MLX5_FS_VLAN_DEPTH];
382 	u16	vlan_vid[MLX5_FS_VLAN_DEPTH];
383 	u8	vlan_prio[MLX5_FS_VLAN_DEPTH];
384 	u8	total_vlan;
385 	bool	vlan_handled;
386 	struct {
387 		u32 flags;
388 		struct mlx5_eswitch_rep *rep;
389 		struct mlx5_pkt_reformat *pkt_reformat;
390 		struct mlx5_core_dev *mdev;
391 		struct mlx5_termtbl_handle *termtbl;
392 	} dests[MLX5_MAX_FLOW_FWD_VPORTS];
393 	struct  mlx5_modify_hdr *modify_hdr;
394 	u8	inner_match_level;
395 	u8	outer_match_level;
396 	struct mlx5_fc *counter;
397 	u32	chain;
398 	u16	prio;
399 	u32	dest_chain;
400 	struct mlx5e_tc_flow_parse_attr *parse_attr;
401 };
402 
403 int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
404 				  struct netlink_ext_ack *extack);
405 int mlx5_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode);
406 int mlx5_devlink_eswitch_inline_mode_set(struct devlink *devlink, u8 mode,
407 					 struct netlink_ext_ack *extack);
408 int mlx5_devlink_eswitch_inline_mode_get(struct devlink *devlink, u8 *mode);
409 int mlx5_eswitch_inline_mode_get(struct mlx5_eswitch *esw, u8 *mode);
410 int mlx5_devlink_eswitch_encap_mode_set(struct devlink *devlink,
411 					enum devlink_eswitch_encap_mode encap,
412 					struct netlink_ext_ack *extack);
413 int mlx5_devlink_eswitch_encap_mode_get(struct devlink *devlink,
414 					enum devlink_eswitch_encap_mode *encap);
415 void *mlx5_eswitch_get_uplink_priv(struct mlx5_eswitch *esw, u8 rep_type);
416 
417 int mlx5_eswitch_add_vlan_action(struct mlx5_eswitch *esw,
418 				 struct mlx5_esw_flow_attr *attr);
419 int mlx5_eswitch_del_vlan_action(struct mlx5_eswitch *esw,
420 				 struct mlx5_esw_flow_attr *attr);
421 int __mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
422 				  u16 vport, u16 vlan, u8 qos, u8 set_flags);
423 
424 static inline bool mlx5_eswitch_vlan_actions_supported(struct mlx5_core_dev *dev,
425 						       u8 vlan_depth)
426 {
427 	bool ret = MLX5_CAP_ESW_FLOWTABLE_FDB(dev, pop_vlan) &&
428 		   MLX5_CAP_ESW_FLOWTABLE_FDB(dev, push_vlan);
429 
430 	if (vlan_depth == 1)
431 		return ret;
432 
433 	return  ret && MLX5_CAP_ESW_FLOWTABLE_FDB(dev, pop_vlan_2) &&
434 		MLX5_CAP_ESW_FLOWTABLE_FDB(dev, push_vlan_2);
435 }
436 
437 bool mlx5_esw_lag_prereq(struct mlx5_core_dev *dev0,
438 			 struct mlx5_core_dev *dev1);
439 bool mlx5_esw_multipath_prereq(struct mlx5_core_dev *dev0,
440 			       struct mlx5_core_dev *dev1);
441 
442 const u32 *mlx5_esw_query_functions(struct mlx5_core_dev *dev);
443 
444 #define MLX5_DEBUG_ESWITCH_MASK BIT(3)
445 
446 #define esw_info(__dev, format, ...)			\
447 	dev_info((__dev)->device, "E-Switch: " format, ##__VA_ARGS__)
448 
449 #define esw_warn(__dev, format, ...)			\
450 	dev_warn((__dev)->device, "E-Switch: " format, ##__VA_ARGS__)
451 
452 #define esw_debug(dev, format, ...)				\
453 	mlx5_core_dbg_mask(dev, MLX5_DEBUG_ESWITCH_MASK, format, ##__VA_ARGS__)
454 
455 /* The returned number is valid only when the dev is eswitch manager. */
456 static inline u16 mlx5_eswitch_manager_vport(struct mlx5_core_dev *dev)
457 {
458 	return mlx5_core_is_ecpf_esw_manager(dev) ?
459 		MLX5_VPORT_ECPF : MLX5_VPORT_PF;
460 }
461 
462 static inline u16 mlx5_eswitch_first_host_vport_num(struct mlx5_core_dev *dev)
463 {
464 	return mlx5_core_is_ecpf_esw_manager(dev) ?
465 		MLX5_VPORT_PF : MLX5_VPORT_FIRST_VF;
466 }
467 
468 static inline bool mlx5_eswitch_is_funcs_handler(struct mlx5_core_dev *dev)
469 {
470 	/* Ideally device should have the functions changed supported
471 	 * capability regardless of it being ECPF or PF wherever such
472 	 * event should be processed such as on eswitch manager device.
473 	 * However, some ECPF based device might not have this capability
474 	 * set. Hence OR for ECPF check to cover such device.
475 	 */
476 	return MLX5_CAP_ESW(dev, esw_functions_changed) ||
477 	       mlx5_core_is_ecpf_esw_manager(dev);
478 }
479 
480 static inline int mlx5_eswitch_uplink_idx(struct mlx5_eswitch *esw)
481 {
482 	/* Uplink always locate at the last element of the array.*/
483 	return esw->total_vports - 1;
484 }
485 
486 static inline int mlx5_eswitch_ecpf_idx(struct mlx5_eswitch *esw)
487 {
488 	return esw->total_vports - 2;
489 }
490 
491 static inline int mlx5_eswitch_vport_num_to_index(struct mlx5_eswitch *esw,
492 						  u16 vport_num)
493 {
494 	if (vport_num == MLX5_VPORT_ECPF) {
495 		if (!mlx5_ecpf_vport_exists(esw->dev))
496 			esw_warn(esw->dev, "ECPF vport doesn't exist!\n");
497 		return mlx5_eswitch_ecpf_idx(esw);
498 	}
499 
500 	if (vport_num == MLX5_VPORT_UPLINK)
501 		return mlx5_eswitch_uplink_idx(esw);
502 
503 	return vport_num;
504 }
505 
506 static inline u16 mlx5_eswitch_index_to_vport_num(struct mlx5_eswitch *esw,
507 						  int index)
508 {
509 	if (index == mlx5_eswitch_ecpf_idx(esw) &&
510 	    mlx5_ecpf_vport_exists(esw->dev))
511 		return MLX5_VPORT_ECPF;
512 
513 	if (index == mlx5_eswitch_uplink_idx(esw))
514 		return MLX5_VPORT_UPLINK;
515 
516 	return index;
517 }
518 
519 /* TODO: This mlx5e_tc function shouldn't be called by eswitch */
520 void mlx5e_tc_clean_fdb_peer_flows(struct mlx5_eswitch *esw);
521 
522 /* The vport getter/iterator are only valid after esw->total_vports
523  * and vport->vport are initialized in mlx5_eswitch_init.
524  */
525 #define mlx5_esw_for_all_vports(esw, i, vport)		\
526 	for ((i) = MLX5_VPORT_PF;			\
527 	     (vport) = &(esw)->vports[i],		\
528 	     (i) < (esw)->total_vports; (i)++)
529 
530 #define mlx5_esw_for_all_vports_reverse(esw, i, vport)	\
531 	for ((i) = (esw)->total_vports - 1;		\
532 	     (vport) = &(esw)->vports[i],		\
533 	     (i) >= MLX5_VPORT_PF; (i)--)
534 
535 #define mlx5_esw_for_each_vf_vport(esw, i, vport, nvfs)	\
536 	for ((i) = MLX5_VPORT_FIRST_VF;			\
537 	     (vport) = &(esw)->vports[(i)],		\
538 	     (i) <= (nvfs); (i)++)
539 
540 #define mlx5_esw_for_each_vf_vport_reverse(esw, i, vport, nvfs)	\
541 	for ((i) = (nvfs);					\
542 	     (vport) = &(esw)->vports[(i)],			\
543 	     (i) >= MLX5_VPORT_FIRST_VF; (i)--)
544 
545 /* The rep getter/iterator are only valid after esw->total_vports
546  * and vport->vport are initialized in mlx5_eswitch_init.
547  */
548 #define mlx5_esw_for_all_reps(esw, i, rep)			\
549 	for ((i) = MLX5_VPORT_PF;				\
550 	     (rep) = &(esw)->offloads.vport_reps[i],		\
551 	     (i) < (esw)->total_vports; (i)++)
552 
553 #define mlx5_esw_for_each_vf_rep(esw, i, rep, nvfs)		\
554 	for ((i) = MLX5_VPORT_FIRST_VF;				\
555 	     (rep) = &(esw)->offloads.vport_reps[i],		\
556 	     (i) <= (nvfs); (i)++)
557 
558 #define mlx5_esw_for_each_vf_rep_reverse(esw, i, rep, nvfs)	\
559 	for ((i) = (nvfs);					\
560 	     (rep) = &(esw)->offloads.vport_reps[i],		\
561 	     (i) >= MLX5_VPORT_FIRST_VF; (i)--)
562 
563 #define mlx5_esw_for_each_vf_vport_num(esw, vport, nvfs)	\
564 	for ((vport) = MLX5_VPORT_FIRST_VF; (vport) <= (nvfs); (vport)++)
565 
566 #define mlx5_esw_for_each_vf_vport_num_reverse(esw, vport, nvfs)	\
567 	for ((vport) = (nvfs); (vport) >= MLX5_VPORT_FIRST_VF; (vport)--)
568 
569 /* Includes host PF (vport 0) if it's not esw manager. */
570 #define mlx5_esw_for_each_host_func_rep(esw, i, rep, nvfs)	\
571 	for ((i) = (esw)->first_host_vport;			\
572 	     (rep) = &(esw)->offloads.vport_reps[i],		\
573 	     (i) <= (nvfs); (i)++)
574 
575 #define mlx5_esw_for_each_host_func_rep_reverse(esw, i, rep, nvfs)	\
576 	for ((i) = (nvfs);						\
577 	     (rep) = &(esw)->offloads.vport_reps[i],			\
578 	     (i) >= (esw)->first_host_vport; (i)--)
579 
580 #define mlx5_esw_for_each_host_func_vport(esw, vport, nvfs)	\
581 	for ((vport) = (esw)->first_host_vport;			\
582 	     (vport) <= (nvfs); (vport)++)
583 
584 #define mlx5_esw_for_each_host_func_vport_reverse(esw, vport, nvfs)	\
585 	for ((vport) = (nvfs);						\
586 	     (vport) >= (esw)->first_host_vport; (vport)--)
587 
588 struct mlx5_vport *__must_check
589 mlx5_eswitch_get_vport(struct mlx5_eswitch *esw, u16 vport_num);
590 
591 bool mlx5_eswitch_is_vf_vport(const struct mlx5_eswitch *esw, u16 vport_num);
592 
593 void mlx5_eswitch_update_num_of_vfs(struct mlx5_eswitch *esw, const int num_vfs);
594 int mlx5_esw_funcs_changed_handler(struct notifier_block *nb, unsigned long type, void *data);
595 
596 void
597 mlx5_eswitch_enable_pf_vf_vports(struct mlx5_eswitch *esw,
598 				 enum mlx5_eswitch_vport_event enabled_events);
599 void mlx5_eswitch_disable_pf_vf_vports(struct mlx5_eswitch *esw);
600 
601 #else  /* CONFIG_MLX5_ESWITCH */
602 /* eswitch API stubs */
603 static inline int  mlx5_eswitch_init(struct mlx5_core_dev *dev) { return 0; }
604 static inline void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw) {}
605 static inline int  mlx5_eswitch_enable(struct mlx5_eswitch *esw, int mode) { return 0; }
606 static inline void mlx5_eswitch_disable(struct mlx5_eswitch *esw) {}
607 static inline bool mlx5_esw_lag_prereq(struct mlx5_core_dev *dev0, struct mlx5_core_dev *dev1) { return true; }
608 static inline bool mlx5_eswitch_is_funcs_handler(struct mlx5_core_dev *dev) { return false; }
609 static inline const u32 *mlx5_esw_query_functions(struct mlx5_core_dev *dev)
610 {
611 	return ERR_PTR(-EOPNOTSUPP);
612 }
613 
614 static inline void mlx5_eswitch_update_num_of_vfs(struct mlx5_eswitch *esw, const int num_vfs) {}
615 
616 #define FDB_MAX_CHAIN 1
617 #define FDB_SLOW_PATH_CHAIN (FDB_MAX_CHAIN + 1)
618 #define FDB_MAX_PRIO 1
619 
620 #endif /* CONFIG_MLX5_ESWITCH */
621 
622 #endif /* __MLX5_ESWITCH_H__ */
623