linux/drivers/net/ipa/ipa_table.h
Alex Elder 73da9cac51 net: ipa: check table memory regions earlier
Verify that the sizes of the routing and filter table memory regions
are valid as part of memory initialization, rather than waiting for
table initialization.  The main reason to do this is that upcoming
patches use these memory region sizes to determine the number of
entries in these tables, and we'll want to know these sizes are good
sooner.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-10-25 11:15:19 +02:00

88 lines
2.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
* Copyright (C) 2019-2022 Linaro Ltd.
*/
#ifndef _IPA_TABLE_H_
#define _IPA_TABLE_H_
#include <linux/types.h>
struct ipa;
/* The maximum number of filter table entries (IPv4, IPv6; hashed or not) */
#define IPA_FILTER_COUNT_MAX 14
/* The number of route table entries allotted to the modem */
#define IPA_ROUTE_MODEM_COUNT 8
/* The maximum number of route table entries (IPv4, IPv6; hashed or not) */
#define IPA_ROUTE_COUNT_MAX 15
/**
* ipa_filter_map_valid() - Validate a filter table endpoint bitmap
* @ipa: IPA pointer
* @filter_mask: Filter table endpoint bitmap to check
*
* Return: true if all regions are valid, false otherwise
*/
bool ipa_filter_map_valid(struct ipa *ipa, u32 filter_mask);
/**
* ipa_table_hash_support() - Return true if hashed tables are supported
* @ipa: IPA pointer
*/
static inline bool ipa_table_hash_support(struct ipa *ipa)
{
return ipa->version != IPA_VERSION_4_2;
}
/**
* ipa_table_reset() - Reset filter and route tables entries to "none"
* @ipa: IPA pointer
* @modem: Whether to reset modem or AP entries
*/
void ipa_table_reset(struct ipa *ipa, bool modem);
/**
* ipa_table_hash_flush() - Synchronize hashed filter and route updates
* @ipa: IPA pointer
*/
int ipa_table_hash_flush(struct ipa *ipa);
/**
* ipa_table_setup() - Set up filter and route tables
* @ipa: IPA pointer
*
* There is no need for a matching ipa_table_teardown() function.
*/
int ipa_table_setup(struct ipa *ipa);
/**
* ipa_table_config() - Configure filter and route tables
* @ipa: IPA pointer
*
* There is no need for a matching ipa_table_deconfig() function.
*/
void ipa_table_config(struct ipa *ipa);
/**
* ipa_table_init() - Do early initialization of filter and route tables
* @ipa: IPA pointer
*/
int ipa_table_init(struct ipa *ipa);
/**
* ipa_table_exit() - Inverse of ipa_table_init()
* @ipa: IPA pointer
*/
void ipa_table_exit(struct ipa *ipa);
/**
* ipa_table_mem_valid() - Validate sizes of table memory regions
* @ipa: IPA pointer
* @modem_route_count: Number of modem route table entries
*/
bool ipa_table_mem_valid(struct ipa *ipa, bool modem_route_count);
#endif /* _IPA_TABLE_H_ */