1 /* SPDX-License-Identifier: GPL-2.0 */
2 
3 /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
4  * Copyright (C) 2019-2021 Linaro Ltd.
5  */
6 #ifndef _IPA_TABLE_H_
7 #define _IPA_TABLE_H_
8 
9 #include <linux/types.h>
10 
11 struct ipa;
12 
13 /* The maximum number of filter table entries (IPv4, IPv6; hashed or not) */
14 #define IPA_FILTER_COUNT_MAX	14
15 
16 /* The maximum number of route table entries (IPv4, IPv6; hashed or not) */
17 #define IPA_ROUTE_COUNT_MAX	15
18 
19 /**
20  * ipa_table_valid() - Validate route and filter table memory regions
21  * @ipa:	IPA pointer
22  *
23  * Return:	true if all regions are valid, false otherwise
24  */
25 bool ipa_table_valid(struct ipa *ipa);
26 
27 /**
28  * ipa_filter_map_valid() - Validate a filter table endpoint bitmap
29  * @ipa:	IPA pointer
30  * @filter_mask: Filter table endpoint bitmap to check
31  *
32  * Return:	true if all regions are valid, false otherwise
33  */
34 bool ipa_filter_map_valid(struct ipa *ipa, u32 filter_mask);
35 
36 /**
37  * ipa_table_hash_support() - Return true if hashed tables are supported
38  * @ipa:	IPA pointer
39  */
ipa_table_hash_support(struct ipa * ipa)40 static inline bool ipa_table_hash_support(struct ipa *ipa)
41 {
42 	return ipa->version != IPA_VERSION_4_2;
43 }
44 
45 /**
46  * ipa_table_reset() - Reset filter and route tables entries to "none"
47  * @ipa:	IPA pointer
48  * @modem:	Whether to reset modem or AP entries
49  */
50 void ipa_table_reset(struct ipa *ipa, bool modem);
51 
52 /**
53  * ipa_table_hash_flush() - Synchronize hashed filter and route updates
54  * @ipa:	IPA pointer
55  */
56 int ipa_table_hash_flush(struct ipa *ipa);
57 
58 /**
59  * ipa_table_setup() - Set up filter and route tables
60  * @ipa:	IPA pointer
61  *
62  * There is no need for a matching ipa_table_teardown() function.
63  */
64 int ipa_table_setup(struct ipa *ipa);
65 
66 /**
67  * ipa_table_config() - Configure filter and route tables
68  * @ipa:	IPA pointer
69  *
70  * There is no need for a matching ipa_table_deconfig() function.
71  */
72 void ipa_table_config(struct ipa *ipa);
73 
74 /**
75  * ipa_table_init() - Do early initialization of filter and route tables
76  * @ipa:	IPA pointer
77  */
78 int ipa_table_init(struct ipa *ipa);
79 
80 /**
81  * ipa_table_exit() - Inverse of ipa_table_init()
82  * @ipa:	IPA pointer
83  */
84 void ipa_table_exit(struct ipa *ipa);
85 
86 #endif /* _IPA_TABLE_H_ */
87