1 /* SPDX-License-Identifier: GPL-2.0 */ 2 3 /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. 4 * Copyright (C) 2019-2022 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 number of route table entries allotted to the modem */ 17 #define IPA_ROUTE_MODEM_COUNT 8 18 19 /* The maximum number of route table entries (IPv4, IPv6; hashed or not) */ 20 #define IPA_ROUTE_COUNT_MAX 15 21 22 /** 23 * ipa_table_valid() - Validate route and filter table memory regions 24 * @ipa: IPA pointer 25 * 26 * Return: true if all regions are valid, false otherwise 27 */ 28 bool ipa_table_valid(struct ipa *ipa); 29 30 /** 31 * ipa_filter_map_valid() - Validate a filter table endpoint bitmap 32 * @ipa: IPA pointer 33 * @filter_mask: Filter table endpoint bitmap to check 34 * 35 * Return: true if all regions are valid, false otherwise 36 */ 37 bool ipa_filter_map_valid(struct ipa *ipa, u32 filter_mask); 38 39 /** 40 * ipa_table_hash_support() - Return true if hashed tables are supported 41 * @ipa: IPA pointer 42 */ 43 static inline bool ipa_table_hash_support(struct ipa *ipa) 44 { 45 return ipa->version != IPA_VERSION_4_2; 46 } 47 48 /** 49 * ipa_table_reset() - Reset filter and route tables entries to "none" 50 * @ipa: IPA pointer 51 * @modem: Whether to reset modem or AP entries 52 */ 53 void ipa_table_reset(struct ipa *ipa, bool modem); 54 55 /** 56 * ipa_table_hash_flush() - Synchronize hashed filter and route updates 57 * @ipa: IPA pointer 58 */ 59 int ipa_table_hash_flush(struct ipa *ipa); 60 61 /** 62 * ipa_table_setup() - Set up filter and route tables 63 * @ipa: IPA pointer 64 * 65 * There is no need for a matching ipa_table_teardown() function. 66 */ 67 int ipa_table_setup(struct ipa *ipa); 68 69 /** 70 * ipa_table_config() - Configure filter and route tables 71 * @ipa: IPA pointer 72 * 73 * There is no need for a matching ipa_table_deconfig() function. 74 */ 75 void ipa_table_config(struct ipa *ipa); 76 77 /** 78 * ipa_table_init() - Do early initialization of filter and route tables 79 * @ipa: IPA pointer 80 */ 81 int ipa_table_init(struct ipa *ipa); 82 83 /** 84 * ipa_table_exit() - Inverse of ipa_table_init() 85 * @ipa: IPA pointer 86 */ 87 void ipa_table_exit(struct ipa *ipa); 88 89 #endif /* _IPA_TABLE_H_ */ 90