1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (c) 2018, Intel Corporation. */
3 
4 #ifndef _ICE_SWITCH_H_
5 #define _ICE_SWITCH_H_
6 
7 #include "ice_common.h"
8 
9 #define ICE_SW_CFG_MAX_BUF_LEN 2048
10 #define ICE_DFLT_VSI_INVAL 0xff
11 #define ICE_FLTR_RX BIT(0)
12 #define ICE_FLTR_TX BIT(1)
13 #define ICE_VSI_INVAL_ID 0xffff
14 #define ICE_INVAL_Q_HANDLE 0xFFFF
15 
16 /* Switch Profile IDs for Profile related switch rules */
17 #define ICE_PROFID_IPV4_GTPC_TEID			41
18 #define ICE_PROFID_IPV4_GTPC_NO_TEID			42
19 #define ICE_PROFID_IPV4_GTPU_TEID			43
20 #define ICE_PROFID_IPV6_GTPC_TEID			44
21 #define ICE_PROFID_IPV6_GTPC_NO_TEID			45
22 #define ICE_PROFID_IPV6_GTPU_TEID			46
23 #define ICE_PROFID_IPV6_GTPU_IPV6_TCP_INNER		70
24 
25 #define ICE_SW_RULE_VSI_LIST_SIZE(s, n)		struct_size((s), vsi, (n))
26 #define ICE_SW_RULE_RX_TX_HDR_SIZE(s, l)	struct_size((s), hdr_data, (l))
27 #define ICE_SW_RULE_RX_TX_ETH_HDR_SIZE(s)	\
28 	ICE_SW_RULE_RX_TX_HDR_SIZE((s), DUMMY_ETH_HDR_LEN)
29 #define ICE_SW_RULE_RX_TX_NO_HDR_SIZE(s)	\
30 	ICE_SW_RULE_RX_TX_HDR_SIZE((s), 0)
31 #define ICE_SW_RULE_LG_ACT_SIZE(s, n)		struct_size((s), act, (n))
32 
33 #define DUMMY_ETH_HDR_LEN		16
34 
35 /* VSI context structure for add/get/update/free operations */
36 struct ice_vsi_ctx {
37 	u16 vsi_num;
38 	u16 vsis_allocd;
39 	u16 vsis_unallocated;
40 	u16 flags;
41 	struct ice_aqc_vsi_props info;
42 	struct ice_sched_vsi_info sched;
43 	u8 alloc_from_pool;
44 	u8 vf_num;
45 	u16 num_lan_q_entries[ICE_MAX_TRAFFIC_CLASS];
46 	struct ice_q_ctx *lan_q_ctx[ICE_MAX_TRAFFIC_CLASS];
47 	u16 num_rdma_q_entries[ICE_MAX_TRAFFIC_CLASS];
48 	struct ice_q_ctx *rdma_q_ctx[ICE_MAX_TRAFFIC_CLASS];
49 };
50 
51 /* Switch recipe ID enum values are specific to hardware */
52 enum ice_sw_lkup_type {
53 	ICE_SW_LKUP_ETHERTYPE = 0,
54 	ICE_SW_LKUP_MAC = 1,
55 	ICE_SW_LKUP_MAC_VLAN = 2,
56 	ICE_SW_LKUP_PROMISC = 3,
57 	ICE_SW_LKUP_VLAN = 4,
58 	ICE_SW_LKUP_DFLT = 5,
59 	ICE_SW_LKUP_ETHERTYPE_MAC = 8,
60 	ICE_SW_LKUP_PROMISC_VLAN = 9,
61 	ICE_SW_LKUP_LAST
62 };
63 
64 /* type of filter src ID */
65 enum ice_src_id {
66 	ICE_SRC_ID_UNKNOWN = 0,
67 	ICE_SRC_ID_VSI,
68 	ICE_SRC_ID_QUEUE,
69 	ICE_SRC_ID_LPORT,
70 };
71 
72 struct ice_fltr_info {
73 	/* Look up information: how to look up packet */
74 	enum ice_sw_lkup_type lkup_type;
75 	/* Forward action: filter action to do after lookup */
76 	enum ice_sw_fwd_act_type fltr_act;
77 	/* rule ID returned by firmware once filter rule is created */
78 	u16 fltr_rule_id;
79 	u16 flag;
80 
81 	/* Source VSI for LOOKUP_TX or source port for LOOKUP_RX */
82 	u16 src;
83 	enum ice_src_id src_id;
84 
85 	union {
86 		struct {
87 			u8 mac_addr[ETH_ALEN];
88 		} mac;
89 		struct {
90 			u8 mac_addr[ETH_ALEN];
91 			u16 vlan_id;
92 		} mac_vlan;
93 		struct {
94 			u16 vlan_id;
95 			u16 tpid;
96 			u8 tpid_valid;
97 		} vlan;
98 		/* Set lkup_type as ICE_SW_LKUP_ETHERTYPE
99 		 * if just using ethertype as filter. Set lkup_type as
100 		 * ICE_SW_LKUP_ETHERTYPE_MAC if MAC also needs to be
101 		 * passed in as filter.
102 		 */
103 		struct {
104 			u16 ethertype;
105 			u8 mac_addr[ETH_ALEN]; /* optional */
106 		} ethertype_mac;
107 	} l_data; /* Make sure to zero out the memory of l_data before using
108 		   * it or only set the data associated with lookup match
109 		   * rest everything should be zero
110 		   */
111 
112 	/* Depending on filter action */
113 	union {
114 		/* queue ID in case of ICE_FWD_TO_Q and starting
115 		 * queue ID in case of ICE_FWD_TO_QGRP.
116 		 */
117 		u16 q_id:11;
118 		u16 hw_vsi_id:10;
119 		u16 vsi_list_id:10;
120 	} fwd_id;
121 
122 	/* Sw VSI handle */
123 	u16 vsi_handle;
124 
125 	/* Set to num_queues if action is ICE_FWD_TO_QGRP. This field
126 	 * determines the range of queues the packet needs to be forwarded to.
127 	 * Note that qgrp_size must be set to a power of 2.
128 	 */
129 	u8 qgrp_size;
130 
131 	/* Rule creations populate these indicators basing on the switch type */
132 	u8 lb_en;	/* Indicate if packet can be looped back */
133 	u8 lan_en;	/* Indicate if packet can be forwarded to the uplink */
134 };
135 
136 struct ice_update_recipe_lkup_idx_params {
137 	u16 rid;
138 	u16 fv_idx;
139 	bool ignore_valid;
140 	u16 mask;
141 	bool mask_valid;
142 	u8 lkup_idx;
143 };
144 
145 struct ice_adv_lkup_elem {
146 	enum ice_protocol_type type;
147 	union {
148 		union ice_prot_hdr h_u;	/* Header values */
149 		/* Used to iterate over the headers */
150 		u16 h_raw[sizeof(union ice_prot_hdr) / sizeof(u16)];
151 	};
152 	union {
153 		union ice_prot_hdr m_u;	/* Mask of header values to match */
154 		/* Used to iterate over header mask */
155 		u16 m_raw[sizeof(union ice_prot_hdr) / sizeof(u16)];
156 	};
157 };
158 
159 struct ice_sw_act_ctrl {
160 	/* Source VSI for LOOKUP_TX or source port for LOOKUP_RX */
161 	u16 src;
162 	u16 flag;
163 	enum ice_sw_fwd_act_type fltr_act;
164 	/* Depending on filter action */
165 	union {
166 		/* This is a queue ID in case of ICE_FWD_TO_Q and starting
167 		 * queue ID in case of ICE_FWD_TO_QGRP.
168 		 */
169 		u16 q_id:11;
170 		u16 vsi_id:10;
171 		u16 hw_vsi_id:10;
172 		u16 vsi_list_id:10;
173 	} fwd_id;
174 	/* software VSI handle */
175 	u16 vsi_handle;
176 	u8 qgrp_size;
177 };
178 
179 struct ice_rule_query_data {
180 	/* Recipe ID for which the requested rule was added */
181 	u16 rid;
182 	/* Rule ID that was added or is supposed to be removed */
183 	u16 rule_id;
184 	/* vsi_handle for which Rule was added or is supposed to be removed */
185 	u16 vsi_handle;
186 };
187 
188 /* This structure allows to pass info about lb_en and lan_en
189  * flags to ice_add_adv_rule. Values in act would be used
190  * only if act_valid was set to true, otherwise default
191  * values would be used.
192  */
193 struct ice_adv_rule_flags_info {
194 	u32 act;
195 	u8 act_valid;		/* indicate if flags in act are valid */
196 };
197 
198 struct ice_adv_rule_info {
199 	/* Store metadata values in rule info */
200 	enum ice_sw_tunnel_type tun_type;
201 	u16 vlan_type;
202 	u16 fltr_rule_id;
203 	u32 priority;
204 	u16 need_pass_l2:1;
205 	u16 allow_pass_l2:1;
206 	u16 src_vsi;
207 	struct ice_sw_act_ctrl sw_act;
208 	struct ice_adv_rule_flags_info flags_info;
209 };
210 
211 /* A collection of one or more four word recipe */
212 struct ice_sw_recipe {
213 	/* For a chained recipe the root recipe is what should be used for
214 	 * programming rules
215 	 */
216 	u8 is_root;
217 	u8 root_rid;
218 	u8 recp_created;
219 
220 	/* Number of extraction words */
221 	u8 n_ext_words;
222 	/* Protocol ID and Offset pair (extraction word) to describe the
223 	 * recipe
224 	 */
225 	struct ice_fv_word ext_words[ICE_MAX_CHAIN_WORDS];
226 	u16 word_masks[ICE_MAX_CHAIN_WORDS];
227 
228 	/* if this recipe is a collection of other recipe */
229 	u8 big_recp;
230 
231 	/* if this recipe is part of another bigger recipe then chain index
232 	 * corresponding to this recipe
233 	 */
234 	u8 chain_idx;
235 
236 	/* if this recipe is a collection of other recipe then count of other
237 	 * recipes and recipe IDs of those recipes
238 	 */
239 	u8 n_grp_count;
240 
241 	/* Bit map specifying the IDs associated with this group of recipe */
242 	DECLARE_BITMAP(r_bitmap, ICE_MAX_NUM_RECIPES);
243 
244 	enum ice_sw_tunnel_type tun_type;
245 
246 	/* List of type ice_fltr_mgmt_list_entry or adv_rule */
247 	u8 adv_rule;
248 	struct list_head filt_rules;
249 	struct list_head filt_replay_rules;
250 
251 	struct mutex filt_rule_lock;	/* protect filter rule structure */
252 
253 	/* Profiles this recipe should be associated with */
254 	struct list_head fv_list;
255 
256 	/* Profiles this recipe is associated with */
257 	u8 num_profs, *prof_ids;
258 
259 	/* Bit map for possible result indexes */
260 	DECLARE_BITMAP(res_idxs, ICE_MAX_FV_WORDS);
261 
262 	/* This allows user to specify the recipe priority.
263 	 * For now, this becomes 'fwd_priority' when recipe
264 	 * is created, usually recipes can have 'fwd' and 'join'
265 	 * priority.
266 	 */
267 	u8 priority;
268 
269 	u8 need_pass_l2:1;
270 	u8 allow_pass_l2:1;
271 
272 	struct list_head rg_list;
273 
274 	/* AQ buffer associated with this recipe */
275 	struct ice_aqc_recipe_data_elem *root_buf;
276 	/* This struct saves the fv_words for a given lookup */
277 	struct ice_prot_lkup_ext lkup_exts;
278 };
279 
280 /* Bookkeeping structure to hold bitmap of VSIs corresponding to VSI list ID */
281 struct ice_vsi_list_map_info {
282 	struct list_head list_entry;
283 	DECLARE_BITMAP(vsi_map, ICE_MAX_VSI);
284 	u16 vsi_list_id;
285 	/* counter to track how many rules are reusing this VSI list */
286 	u16 ref_cnt;
287 };
288 
289 struct ice_fltr_list_entry {
290 	struct list_head list_entry;
291 	int status;
292 	struct ice_fltr_info fltr_info;
293 };
294 
295 /* This defines an entry in the list that maintains MAC or VLAN membership
296  * to HW list mapping, since multiple VSIs can subscribe to the same MAC or
297  * VLAN. As an optimization the VSI list should be created only when a
298  * second VSI becomes a subscriber to the same MAC address. VSI lists are always
299  * used for VLAN membership.
300  */
301 struct ice_fltr_mgmt_list_entry {
302 	/* back pointer to VSI list ID to VSI list mapping */
303 	struct ice_vsi_list_map_info *vsi_list_info;
304 	u16 vsi_count;
305 #define ICE_INVAL_LG_ACT_INDEX 0xffff
306 	u16 lg_act_idx;
307 #define ICE_INVAL_SW_MARKER_ID 0xffff
308 	u16 sw_marker_id;
309 	struct list_head list_entry;
310 	struct ice_fltr_info fltr_info;
311 #define ICE_INVAL_COUNTER_ID 0xff
312 	u8 counter_index;
313 };
314 
315 struct ice_adv_fltr_mgmt_list_entry {
316 	struct list_head list_entry;
317 
318 	struct ice_adv_lkup_elem *lkups;
319 	struct ice_adv_rule_info rule_info;
320 	u16 lkups_cnt;
321 	struct ice_vsi_list_map_info *vsi_list_info;
322 	u16 vsi_count;
323 };
324 
325 enum ice_promisc_flags {
326 	ICE_PROMISC_UCAST_RX = 0x1,
327 	ICE_PROMISC_UCAST_TX = 0x2,
328 	ICE_PROMISC_MCAST_RX = 0x4,
329 	ICE_PROMISC_MCAST_TX = 0x8,
330 	ICE_PROMISC_BCAST_RX = 0x10,
331 	ICE_PROMISC_BCAST_TX = 0x20,
332 	ICE_PROMISC_VLAN_RX = 0x40,
333 	ICE_PROMISC_VLAN_TX = 0x80,
334 };
335 
336 /* VSI related commands */
337 int
338 ice_add_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
339 	    struct ice_sq_cd *cd);
340 int
341 ice_free_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
342 	     bool keep_vsi_alloc, struct ice_sq_cd *cd);
343 int
344 ice_update_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
345 	       struct ice_sq_cd *cd);
346 bool ice_is_vsi_valid(struct ice_hw *hw, u16 vsi_handle);
347 struct ice_vsi_ctx *ice_get_vsi_ctx(struct ice_hw *hw, u16 vsi_handle);
348 void ice_clear_all_vsi_ctx(struct ice_hw *hw);
349 /* Switch config */
350 int ice_get_initial_sw_cfg(struct ice_hw *hw);
351 
352 int
353 ice_alloc_res_cntr(struct ice_hw *hw, u8 type, u8 alloc_shared, u16 num_items,
354 		   u16 *counter_id);
355 int
356 ice_free_res_cntr(struct ice_hw *hw, u8 type, u8 alloc_shared, u16 num_items,
357 		  u16 counter_id);
358 int ice_share_res(struct ice_hw *hw, u16 type, u8 shared, u16 res_id);
359 
360 /* Switch/bridge related commands */
361 void ice_rule_add_tunnel_metadata(struct ice_adv_lkup_elem *lkup);
362 void ice_rule_add_direction_metadata(struct ice_adv_lkup_elem *lkup);
363 void ice_rule_add_vlan_metadata(struct ice_adv_lkup_elem *lkup);
364 void ice_rule_add_src_vsi_metadata(struct ice_adv_lkup_elem *lkup);
365 int
366 ice_add_adv_rule(struct ice_hw *hw, struct ice_adv_lkup_elem *lkups,
367 		 u16 lkups_cnt, struct ice_adv_rule_info *rinfo,
368 		 struct ice_rule_query_data *added_entry);
369 int ice_update_sw_rule_bridge_mode(struct ice_hw *hw);
370 int ice_add_vlan(struct ice_hw *hw, struct list_head *m_list);
371 int ice_remove_vlan(struct ice_hw *hw, struct list_head *v_list);
372 int ice_add_mac(struct ice_hw *hw, struct list_head *m_lst);
373 int ice_remove_mac(struct ice_hw *hw, struct list_head *m_lst);
374 bool ice_vlan_fltr_exist(struct ice_hw *hw, u16 vlan_id, u16 vsi_handle);
375 int ice_add_eth_mac(struct ice_hw *hw, struct list_head *em_list);
376 int ice_remove_eth_mac(struct ice_hw *hw, struct list_head *em_list);
377 int ice_cfg_rdma_fltr(struct ice_hw *hw, u16 vsi_handle, bool enable);
378 void ice_remove_vsi_fltr(struct ice_hw *hw, u16 vsi_handle);
379 
380 /* Promisc/defport setup for VSIs */
381 int
382 ice_cfg_dflt_vsi(struct ice_port_info *pi, u16 vsi_handle, bool set,
383 		 u8 direction);
384 bool
385 ice_check_if_dflt_vsi(struct ice_port_info *pi, u16 vsi_handle,
386 		      bool *rule_exists);
387 
388 int
389 ice_set_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask,
390 		    u16 vid);
391 int
392 ice_clear_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask,
393 		      u16 vid);
394 int
395 ice_set_vlan_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask,
396 			 bool rm_vlan_promisc);
397 
398 int
399 ice_rem_adv_rule_by_id(struct ice_hw *hw,
400 		       struct ice_rule_query_data *remove_entry);
401 
402 int ice_init_def_sw_recp(struct ice_hw *hw);
403 u16 ice_get_hw_vsi_num(struct ice_hw *hw, u16 vsi_handle);
404 
405 int ice_replay_vsi_all_fltr(struct ice_hw *hw, u16 vsi_handle);
406 void ice_rm_all_sw_replay_rule_info(struct ice_hw *hw);
407 void ice_fill_eth_hdr(u8 *eth_hdr);
408 
409 int
410 ice_aq_sw_rules(struct ice_hw *hw, void *rule_list, u16 rule_list_sz,
411 		u8 num_rules, enum ice_adminq_opc opc, struct ice_sq_cd *cd);
412 int
413 ice_update_recipe_lkup_idx(struct ice_hw *hw,
414 			   struct ice_update_recipe_lkup_idx_params *params);
415 void ice_change_proto_id_to_dvm(void);
416 struct ice_vsi_list_map_info *
417 ice_find_vsi_list_entry(struct ice_hw *hw, u8 recp_id, u16 vsi_handle,
418 			u16 *vsi_list_id);
419 int ice_alloc_recipe(struct ice_hw *hw, u16 *rid);
420 int ice_aq_get_recipe(struct ice_hw *hw,
421 		      struct ice_aqc_recipe_data_elem *s_recipe_list,
422 		      u16 *num_recipes, u16 recipe_root, struct ice_sq_cd *cd);
423 int ice_aq_add_recipe(struct ice_hw *hw,
424 		      struct ice_aqc_recipe_data_elem *s_recipe_list,
425 		      u16 num_recipes, struct ice_sq_cd *cd);
426 int
427 ice_aq_get_recipe_to_profile(struct ice_hw *hw, u32 profile_id, u8 *r_bitmap,
428 			     struct ice_sq_cd *cd);
429 int
430 ice_aq_map_recipe_to_profile(struct ice_hw *hw, u32 profile_id, u8 *r_bitmap,
431 			     struct ice_sq_cd *cd);
432 
433 #endif /* _ICE_SWITCH_H_ */
434