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a266ad6b5d
Introduce a new function to abstract the knowledge of whether hashed routing and filter tables are supported for a given IPA instance. IPA v4.2 is the only one that doesn't support hashed tables (now and for the foreseeable future), but the name of the helper function is better for explaining what's going on. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
110 lines
2.5 KiB
C
110 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
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* Copyright (C) 2019-2021 Linaro Ltd.
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*/
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#ifndef _IPA_TABLE_H_
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#define _IPA_TABLE_H_
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#include <linux/types.h>
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struct ipa;
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/* The size of a filter or route table entry */
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#define IPA_TABLE_ENTRY_SIZE sizeof(__le64) /* Holds a physical address */
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/* The maximum number of filter table entries (IPv4, IPv6; hashed or not) */
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#define IPA_FILTER_COUNT_MAX 14
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/* The maximum number of route table entries (IPv4, IPv6; hashed or not) */
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#define IPA_ROUTE_COUNT_MAX 15
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#ifdef IPA_VALIDATE
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/**
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* ipa_table_valid() - Validate route and filter table memory regions
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* @ipa: IPA pointer
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* Return: true if all regions are valid, false otherwise
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*/
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bool ipa_table_valid(struct ipa *ipa);
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/**
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* ipa_filter_map_valid() - Validate a filter table endpoint bitmap
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* @ipa: IPA pointer
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*
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* Return: true if all regions are valid, false otherwise
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*/
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bool ipa_filter_map_valid(struct ipa *ipa, u32 filter_mask);
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#else /* !IPA_VALIDATE */
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static inline bool ipa_table_valid(struct ipa *ipa)
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{
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return true;
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}
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static inline bool ipa_filter_map_valid(struct ipa *ipa, u32 filter_mask)
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{
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return true;
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}
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#endif /* !IPA_VALIDATE */
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/**
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* ipa_table_hash_support() - Return true if hashed tables are supported
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* @ipa: IPA pointer
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*/
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bool ipa_table_hash_support(struct ipa *ipa);
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/**
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* ipa_table_reset() - Reset filter and route tables entries to "none"
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* @ipa: IPA pointer
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* @modem: Whether to reset modem or AP entries
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*/
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void ipa_table_reset(struct ipa *ipa, bool modem);
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/**
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* ipa_table_hash_flush() - Synchronize hashed filter and route updates
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* @ipa: IPA pointer
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*/
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int ipa_table_hash_flush(struct ipa *ipa);
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/**
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* ipa_table_setup() - Set up filter and route tables
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* @ipa: IPA pointer
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*/
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int ipa_table_setup(struct ipa *ipa);
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/**
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* ipa_table_teardown() - Inverse of ipa_table_setup()
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* @ipa: IPA pointer
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*/
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void ipa_table_teardown(struct ipa *ipa);
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/**
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* ipa_table_config() - Configure filter and route tables
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* @ipa: IPA pointer
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*/
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void ipa_table_config(struct ipa *ipa);
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/**
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* ipa_table_deconfig() - Inverse of ipa_table_config()
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* @ipa: IPA pointer
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*/
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void ipa_table_deconfig(struct ipa *ipa);
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/**
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* ipa_table_init() - Do early initialization of filter and route tables
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* @ipa: IPA pointer
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*/
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int ipa_table_init(struct ipa *ipa);
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/**
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* ipa_table_exit() - Inverse of ipa_table_init()
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* @ipa: IPA pointer
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*/
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void ipa_table_exit(struct ipa *ipa);
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#endif /* _IPA_TABLE_H_ */
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