1684251d1f
Add support to move FISA FST from DDR to CMEM, enable it for Kiwi Adding CMEM support for FISA FST includes 1) Reserving CMEM memory space FISA FST 2) Add HAL macros for CMEM flow search entry Change-Id: I45fc91a86c1ac89d3d95b246e26ea981314425a8 CRs-Fixed: 3199250
227 lines
7.1 KiB
C
227 lines
7.1 KiB
C
/*
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* Copyright (c) 2019-2021 The Linux Foundation. All rights reserved.
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* Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. 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_setup_cmem_fse() - Setup a flow search entry in HW CMEM FST
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* @hal_soc_hdl: HAL SOC handle
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* @cmem_ba: CMEM base address
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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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uint32_t
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hal_rx_flow_setup_cmem_fse(hal_soc_handle_t hal_soc_hdl, uint32_t cmem_ba,
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uint32_t table_offset, struct hal_rx_flow *flow);
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/**
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* hal_rx_flow_get_cmem_fse_timestamp() - Get timestamp field from CMEM FSE
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* @hal_soc_hdl: HAL SOC handle
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* @fse_offset: CMEM FSE offset
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*
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* Return: Timestamp
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*/
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uint32_t hal_rx_flow_get_cmem_fse_timestamp(hal_soc_handle_t hal_soc_hdl,
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uint32_t fse_offset);
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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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* @hal_soc_hdl: HAL SOC handle
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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(hal_soc_handle_t hal_soc_hdl,
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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_soc_hdl: HAL SOC handle
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* @fst: Pointer to the Rx Flow Search Table
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* @hal_hash: HAL 5 tuple hash
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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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void *
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hal_rx_flow_get_tuple_info(hal_soc_handle_t hal_soc_hdl,
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struct hal_rx_fst *fst,
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uint32_t hal_hash,
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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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* @hal_soc_hdl: HAL SOC handle
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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(hal_soc_handle_t hal_soc_hdl,
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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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uint64_t fst_cmem_base);
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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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* @hal_soc_hdl: HAL SOC handler
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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(hal_soc_handle_t hal_soc_hdl, struct hal_rx_fst *rx_fst,
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qdf_device_t qdf_dev, uint64_t fst_cmem_base);
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/**
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* hal_rx_insert_flow_entry() - Add a flow into the FST table
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* @hal_soc_hdl: HAL SOC handle
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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(hal_soc_handle_t hal_soc_hdl,
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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(hal_soc_handle_t hal_soc_hdl,
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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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/**
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* hal_rx_dump_cmem_fse() - Dump flow search table entry which is in CMEM
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* @hal_soc_hdl: HAL SOC handle
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* @fse_offset: Offset in to the CMEM where FSE is located
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* @index: FSE index
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*
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* Return: None
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*/
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void hal_rx_dump_cmem_fse(hal_soc_handle_t hal_soc_hdl, uint32_t fse_offset,
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int index);
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#endif /* HAL_RX_FLOW_H */
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