c6d4cbfd1a
Rx flow indentification changes to provide support on Qcn9000 target Change-Id: I1b7ef8c93e38e753cb7014dca68148a4174daa82
178 行
5.5 KiB
C
178 行
5.5 KiB
C
/*
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* Copyright (c) 2019-2020 The Linux Foundation. All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all
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* copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef __HAL_RX_FLOW_H
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#define __HAL_RX_FLOW_H
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#include "hal_flow.h"
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#include "wlan_cfg.h"
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#include "hal_api.h"
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#include "qdf_mem.h"
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#include "rx_flow_search_entry.h"
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#include "hal_rx_flow_info.h"
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#define HAL_FST_HASH_KEY_SIZE_BITS 315
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#define HAL_FST_HASH_KEY_SIZE_WORDS 10
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#define HAL_FST_HASH_DATA_SIZE 37
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#define HAL_FST_HASH_MASK 0x7ffff
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#define HAL_RX_FST_ENTRY_SIZE (NUM_OF_DWORDS_RX_FLOW_SEARCH_ENTRY * 4)
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/**
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* Four possible options for IP SA/DA prefix, currently use 0x0 which
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* maps to type 2 in HW spec
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*/
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#define HAL_FST_IP_DA_SA_PFX_TYPE_IPV4_COMPATIBLE_IPV6 2
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#define HAL_IP_DA_SA_PREFIX_IPV4_COMPATIBLE_IPV6 0x0
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/**
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* REO destination indication is a lower 4-bits of hash value
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* This should match the REO destination used in Rx hash based routing.
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*/
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#define HAL_REO_DEST_IND_HASH_MASK 0xF
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/**
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* REO destinations are valid from 16-31 for Hawkeye
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* and 0-15 are not setup for SW
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*/
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#define HAL_REO_DEST_IND_START_OFFSET 0x10
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/**
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* enum hal_rx_fse_reo_destination_handler
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* @HAL_RX_FSE_REO_DEST_FT: Use this entry's destination indication
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* @HAL_RX_FSE_REO_DEST_ASPT: Use Address Search + Peer Table's entry
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* @HAL_RX_FSE_REO_DEST_FT2: Use FT2's destination indication
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* @HAL_RX_FSE_REO_DEST_CCE: Use CCE's destination indication for this entry
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*/
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enum hal_rx_fse_reo_destination_handler {
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HAL_RX_FSE_REO_DEST_FT = 0,
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HAL_RX_FSE_REO_DEST_ASPT = 1,
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HAL_RX_FSE_REO_DEST_FT2 = 2,
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HAL_RX_FSE_REO_DEST_CCE = 3,
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};
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/**
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* hal_rx_flow_setup_fse() - Setup a flow search entry in HW FST
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* @fst: Pointer to the Rx Flow Search Table
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* @table_offset: offset into the table where the flow is to be setup
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* @flow: Flow Parameters
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*
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* Return: Success/Failure
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*/
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void *
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hal_rx_flow_setup_fse(hal_soc_handle_t hal_soc_hdl,
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struct hal_rx_fst *fst, uint32_t table_offset,
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struct hal_rx_flow *flow);
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/**
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* hal_rx_flow_delete_entry() - Delete a flow from the Rx Flow Search Table
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* @fst: Pointer to the Rx Flow Search Table
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* @hal_rx_fse: Pointer to the Rx Flow that is to be deleted from the FST
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*
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* Return: Success/Failure
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*/
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QDF_STATUS
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hal_rx_flow_delete_entry(struct hal_rx_fst *fst, void *hal_rx_fse);
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/**
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* hal_rx_flow_get_tuple_info() - Retrieve the 5-tuple flow info for an entry
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* @hal_fse: Pointer to the Flow in Rx FST
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* @tuple_info: 5-tuple info of the flow returned to the caller
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*
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* Return: Success/Failure
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*/
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QDF_STATUS hal_rx_flow_get_tuple_info(void *hal_fse,
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struct hal_flow_tuple_info *tuple_info);
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/**
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* hal_rx_fst_attach() - Initialize Rx flow search table in HW FST
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*
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* @qdf_dev: QDF device handle
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* @hal_fst_base_paddr: Pointer to the physical base address of the Rx FST
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* @max_entries: Max number of flows allowed in the FST
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* @max_search: Number of collisions allowed in the hash-based FST
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* @hash_key: Toeplitz key used for the hash FST
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*
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* Return:
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*/
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struct hal_rx_fst *
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hal_rx_fst_attach(qdf_device_t qdf_dev,
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uint64_t *hal_fst_base_paddr, uint16_t max_entries,
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uint16_t max_search, uint8_t *hash_key);
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/**
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* hal_rx_fst_detach() - De-init the Rx flow search table from HW
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*
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* @rx_fst: Pointer to the Rx FST
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* @qdf_dev: QDF device handle
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*
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* Return:
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*/
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void hal_rx_fst_detach(struct hal_rx_fst *rx_fst, qdf_device_t qdf_dev);
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/**
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* hal_rx_insert_flow_entry() - Add a flow into the FST table
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*
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* @hal_fst: HAL Rx FST Handle
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* @flow_hash: Flow hash computed from flow tuple
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* @flow_tuple_info: Flow tuple used to compute the hash
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* @flow_index: Hash index of the flow in the table when inserted successfully
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*
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* Return: Success if flow is inserted into the table, error otherwise
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*/
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QDF_STATUS
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hal_rx_insert_flow_entry(struct hal_rx_fst *fst, uint32_t flow_hash,
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void *flow_tuple_info, uint32_t *flow_idx);
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/**
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* hal_rx_find_flow_from_tuple() - Find a flow in the FST table
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*
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* @fst: HAL Rx FST Handle
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* @flow_hash: Flow hash computed from flow tuple
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* @flow_tuple_info: Flow tuple used to compute the hash
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* @flow_index: Hash index of the flow in the table when found
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*
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* Return: Success if matching flow is found in the table, error otherwise
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*/
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QDF_STATUS
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hal_rx_find_flow_from_tuple(struct hal_rx_fst *fst, uint32_t flow_hash,
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void *flow_tuple_info, uint32_t *flow_idx);
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/**
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* hal_rx_get_hal_hash() - Retrieve hash index of a flow in the FST table
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*
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* @hal_fst: HAL Rx FST Handle
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* @flow_hash: Flow hash computed from flow tuple
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*
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* Return: hash index truncated to the size of the hash table
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*/
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uint32_t hal_rx_get_hal_hash(struct hal_rx_fst *hal_fst, uint32_t flow_hash);
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/**
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* hal_flow_toeplitz_hash() - Calculate Toeplitz hash by using the cached key
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*
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* @hal_fst: FST Handle
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* @flow: Flow Parameters
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*
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* Return: Success/Failure
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*/
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uint32_t
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hal_flow_toeplitz_hash(void *hal_fst, struct hal_rx_flow *flow);
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void hal_rx_dump_fse_table(struct hal_rx_fst *fst);
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#endif /* HAL_RX_FLOW_H */
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