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1/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
2/* Copyright (c) 2020-2021 Marvell International Ltd. All rights reserved. */
3
4#ifndef _PRESTERA_ACL_H_
5#define _PRESTERA_ACL_H_
6
7#include <linux/types.h>
8#include "prestera_counter.h"
9
10#define PRESTERA_ACL_KEYMASK_PCL_ID 0x3FF
11#define PRESTERA_ACL_KEYMASK_PCL_ID_USER \
12 (PRESTERA_ACL_KEYMASK_PCL_ID & 0x00FF)
13#define PRESTERA_ACL_KEYMASK_PCL_ID_CHAIN \
14 (PRESTERA_ACL_KEYMASK_PCL_ID & 0xFF00)
15#define PRESTERA_ACL_CHAIN_MASK \
16 (PRESTERA_ACL_KEYMASK_PCL_ID >> 8)
17
18#define PRESTERA_ACL_PCL_ID_MAKE(uid, chain_id) \
19 (((uid) & PRESTERA_ACL_KEYMASK_PCL_ID_USER) | \
20 (((chain_id) << 8) & PRESTERA_ACL_KEYMASK_PCL_ID_CHAIN))
21
22#define rule_match_set_n(match_p, type, val_p, size) \
23 memcpy(&(match_p)[PRESTERA_ACL_RULE_MATCH_TYPE_##type], \
24 val_p, size)
25#define rule_match_set(match_p, type, val) \
26 memcpy(&(match_p)[PRESTERA_ACL_RULE_MATCH_TYPE_##type], \
27 &(val), sizeof(val))
28
29enum prestera_acl_match_type {
30 PRESTERA_ACL_RULE_MATCH_TYPE_PCL_ID,
31 PRESTERA_ACL_RULE_MATCH_TYPE_ETH_TYPE,
32 PRESTERA_ACL_RULE_MATCH_TYPE_ETH_DMAC_0,
33 PRESTERA_ACL_RULE_MATCH_TYPE_ETH_DMAC_1,
34 PRESTERA_ACL_RULE_MATCH_TYPE_ETH_SMAC_0,
35 PRESTERA_ACL_RULE_MATCH_TYPE_ETH_SMAC_1,
36 PRESTERA_ACL_RULE_MATCH_TYPE_IP_PROTO,
37 PRESTERA_ACL_RULE_MATCH_TYPE_SYS_PORT,
38 PRESTERA_ACL_RULE_MATCH_TYPE_SYS_DEV,
39 PRESTERA_ACL_RULE_MATCH_TYPE_IP_SRC,
40 PRESTERA_ACL_RULE_MATCH_TYPE_IP_DST,
41 PRESTERA_ACL_RULE_MATCH_TYPE_L4_PORT_SRC,
42 PRESTERA_ACL_RULE_MATCH_TYPE_L4_PORT_DST,
43 PRESTERA_ACL_RULE_MATCH_TYPE_L4_PORT_RANGE_SRC,
44 PRESTERA_ACL_RULE_MATCH_TYPE_L4_PORT_RANGE_DST,
45 PRESTERA_ACL_RULE_MATCH_TYPE_VLAN_ID,
46 PRESTERA_ACL_RULE_MATCH_TYPE_VLAN_TPID,
47 PRESTERA_ACL_RULE_MATCH_TYPE_ICMP_TYPE,
48 PRESTERA_ACL_RULE_MATCH_TYPE_ICMP_CODE,
49
50 __PRESTERA_ACL_RULE_MATCH_TYPE_MAX
51};
52
53enum prestera_acl_rule_action {
54 PRESTERA_ACL_RULE_ACTION_ACCEPT = 0,
55 PRESTERA_ACL_RULE_ACTION_DROP = 1,
56 PRESTERA_ACL_RULE_ACTION_TRAP = 2,
57 PRESTERA_ACL_RULE_ACTION_JUMP = 5,
58 PRESTERA_ACL_RULE_ACTION_COUNT = 7,
59 PRESTERA_ACL_RULE_ACTION_POLICE = 8,
60
61 PRESTERA_ACL_RULE_ACTION_MAX
62};
63
64enum {
65 PRESTERA_ACL_IFACE_TYPE_PORT,
66 PRESTERA_ACL_IFACE_TYPE_INDEX
67};
68
69struct prestera_acl_match {
70 __be32 key[__PRESTERA_ACL_RULE_MATCH_TYPE_MAX];
71 __be32 mask[__PRESTERA_ACL_RULE_MATCH_TYPE_MAX];
72};
73
74struct prestera_acl_action_jump {
75 u32 index;
76};
77
78struct prestera_acl_action_police {
79 u32 id;
80};
81
82struct prestera_acl_action_count {
83 u32 id;
84};
85
86struct prestera_acl_rule_entry_key {
87 u32 prio;
88 struct prestera_acl_match match;
89};
90
91struct prestera_acl_hw_action_info {
92 enum prestera_acl_rule_action id;
93 union {
94 struct prestera_acl_action_police police;
95 struct prestera_acl_action_count count;
96 struct prestera_acl_action_jump jump;
97 };
98};
99
100/* This struct (arg) used only to be passed as parameter for
101 * acl_rule_entry_create. Must be flat. Can contain object keys, which will be
102 * resolved to object links, before saving to acl_rule_entry struct
103 */
104struct prestera_acl_rule_entry_arg {
105 u32 vtcam_id;
106 struct {
107 struct {
108 u8 valid:1;
109 } accept, drop, trap;
110 struct {
111 struct prestera_acl_action_jump i;
112 u8 valid:1;
113 } jump;
114 struct {
115 u8 valid:1;
116 u64 rate;
117 u64 burst;
118 bool ingress;
119 } police;
120 struct {
121 u8 valid:1;
122 u32 client;
123 } count;
124 };
125};
126
127struct prestera_acl_rule {
128 struct rhash_head ht_node; /* Member of acl HT */
129 struct list_head list;
130 struct prestera_acl_ruleset *ruleset;
131 struct prestera_acl_ruleset *jump_ruleset;
132 unsigned long cookie;
133 u32 chain_index;
134 u32 priority;
135 struct prestera_acl_rule_entry_key re_key;
136 struct prestera_acl_rule_entry_arg re_arg;
137 struct prestera_acl_rule_entry *re;
138};
139
140struct prestera_acl_iface {
141 union {
142 struct prestera_port *port;
143 u32 index;
144 };
145 u8 type;
146};
147
148struct prestera_acl;
149struct prestera_switch;
150struct prestera_flow_block;
151
152int prestera_acl_init(struct prestera_switch *sw);
153void prestera_acl_fini(struct prestera_switch *sw);
154
155struct prestera_acl_rule *
156prestera_acl_rule_create(struct prestera_acl_ruleset *ruleset,
157 unsigned long cookie, u32 chain_index);
158void prestera_acl_rule_priority_set(struct prestera_acl_rule *rule,
159 u32 priority);
160void prestera_acl_rule_destroy(struct prestera_acl_rule *rule);
161struct prestera_acl_rule *
162prestera_acl_rule_lookup(struct prestera_acl_ruleset *ruleset,
163 unsigned long cookie);
164int prestera_acl_rule_add(struct prestera_switch *sw,
165 struct prestera_acl_rule *rule);
166void prestera_acl_rule_del(struct prestera_switch *sw,
167 struct prestera_acl_rule *rule);
168int prestera_acl_rule_get_stats(struct prestera_acl *acl,
169 struct prestera_acl_rule *rule,
170 u64 *packets, u64 *bytes, u64 *last_use);
171struct prestera_acl_rule_entry *
172prestera_acl_rule_entry_find(struct prestera_acl *acl,
173 struct prestera_acl_rule_entry_key *key);
174void prestera_acl_rule_entry_destroy(struct prestera_acl *acl,
175 struct prestera_acl_rule_entry *e);
176struct prestera_acl_rule_entry *
177prestera_acl_rule_entry_create(struct prestera_acl *acl,
178 struct prestera_acl_rule_entry_key *key,
179 struct prestera_acl_rule_entry_arg *arg);
180struct prestera_acl_ruleset *
181prestera_acl_ruleset_get(struct prestera_acl *acl,
182 struct prestera_flow_block *block,
183 u32 chain_index);
184struct prestera_acl_ruleset *
185prestera_acl_ruleset_lookup(struct prestera_acl *acl,
186 struct prestera_flow_block *block,
187 u32 chain_index);
188int prestera_acl_ruleset_keymask_set(struct prestera_acl_ruleset *ruleset,
189 void *keymask);
190bool prestera_acl_ruleset_is_offload(struct prestera_acl_ruleset *ruleset);
191int prestera_acl_ruleset_offload(struct prestera_acl_ruleset *ruleset);
192void prestera_acl_ruleset_put(struct prestera_acl_ruleset *ruleset);
193int prestera_acl_ruleset_bind(struct prestera_acl_ruleset *ruleset,
194 struct prestera_port *port);
195int prestera_acl_ruleset_unbind(struct prestera_acl_ruleset *ruleset,
196 struct prestera_port *port);
197u32 prestera_acl_ruleset_index_get(const struct prestera_acl_ruleset *ruleset);
198void prestera_acl_ruleset_prio_get(struct prestera_acl_ruleset *ruleset,
199 u32 *prio_min, u32 *prio_max);
200void
201prestera_acl_rule_keymask_pcl_id_set(struct prestera_acl_rule *rule,
202 u16 pcl_id);
203
204int prestera_acl_vtcam_id_get(struct prestera_acl *acl, u8 lookup, u8 dir,
205 void *keymask, u32 *vtcam_id);
206int prestera_acl_vtcam_id_put(struct prestera_acl *acl, u32 vtcam_id);
207int prestera_acl_chain_to_client(u32 chain_index, bool ingress, u32 *client);
208
209#endif /* _PRESTERA_ACL_H_ */