mirror of https://github.com/F-Stack/f-stack.git
407 lines
11 KiB
C
407 lines
11 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2014-2019 Broadcom
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* All rights reserved.
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*/
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#ifndef _ULP_FLOW_DB_H_
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#define _ULP_FLOW_DB_H_
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#include "bnxt_ulp.h"
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#include "ulp_template_db_enum.h"
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#include "ulp_mapper.h"
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#define BNXT_FLOW_DB_DEFAULT_NUM_FLOWS 512
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#define BNXT_FLOW_DB_DEFAULT_NUM_RESOURCES 8
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/*
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* Structure for the flow database resource information
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* The below structure is based on the below paritions
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* nxt_resource_idx = dir[31],resource_func_upper[30:28],nxt_resource_idx[27:0]
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* If resource_func is EM_TBL then use resource_em_handle.
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* Else the other part of the union is used and
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* resource_func is resource_func_upper[30:28] << 5 | resource_func_lower
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*/
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struct ulp_fdb_resource_info {
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/* Points to next resource in the chained list. */
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uint32_t nxt_resource_idx;
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union {
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uint64_t resource_em_handle;
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struct {
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uint8_t resource_func_lower;
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uint8_t resource_type;
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uint8_t resource_sub_type;
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uint8_t reserved;
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uint32_t resource_hndl;
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};
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};
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};
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/* Structure for the flow database resource information. */
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struct bnxt_ulp_flow_tbl {
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/* Flow tbl is the resource object list for each flow id. */
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struct ulp_fdb_resource_info *flow_resources;
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/* Flow table stack to track free list of resources. */
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uint32_t *flow_tbl_stack;
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uint32_t head_index;
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uint32_t tail_index;
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/* Table to track the active flows. */
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uint64_t *active_reg_flows;
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uint64_t *active_dflt_flows;
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uint32_t num_flows;
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uint32_t num_resources;
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};
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/* Structure to maintain parent-child flow relationships */
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struct ulp_fdb_parent_info {
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uint32_t parent_fid;
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uint32_t counter_acc;
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uint64_t pkt_count;
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uint64_t byte_count;
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uint64_t *child_fid_bitset;
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uint32_t f2_cnt;
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uint8_t tun_idx;
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};
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/* Structure to maintain parent-child flow relationships */
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struct ulp_fdb_parent_child_db {
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struct ulp_fdb_parent_info *parent_flow_tbl;
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uint32_t child_bitset_size;
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uint32_t entries_count;
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uint8_t *parent_flow_tbl_mem;
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};
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/* Structure for the flow database resource information. */
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struct bnxt_ulp_flow_db {
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struct bnxt_ulp_flow_tbl flow_tbl;
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uint16_t *func_id_tbl;
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uint32_t func_id_tbl_size;
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struct ulp_fdb_parent_child_db parent_child_db;
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};
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/* flow db resource params to add resources */
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struct ulp_flow_db_res_params {
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enum tf_dir direction;
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enum bnxt_ulp_resource_func resource_func;
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uint8_t resource_type;
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uint8_t resource_sub_type;
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uint8_t reserved;
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uint8_t critical_resource;
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uint64_t resource_hndl;
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};
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/*
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* Initialize the flow database. Memory is allocated in this
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* call and assigned to the flow database.
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*
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* ulp_ctxt [in] Ptr to ulp context
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*
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* Returns 0 on success or negative number on failure.
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*/
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int32_t ulp_flow_db_init(struct bnxt_ulp_context *ulp_ctxt);
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/*
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* Deinitialize the flow database. Memory is deallocated in
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* this call and all flows should have been purged before this
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* call.
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*
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* ulp_ctxt [in] Ptr to ulp context
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*
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* Returns 0 on success.
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*/
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int32_t ulp_flow_db_deinit(struct bnxt_ulp_context *ulp_ctxt);
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/*
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* Allocate the flow database entry
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*
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* ulp_ctxt [in] Ptr to ulp_context
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* tbl_idx [in] Specify it is regular or default flow
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* func_id [in] The function id of the device.Valid only for regular flows.
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* fid [out] The index to the flow entry
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*
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* returns 0 on success and negative on failure.
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*/
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int32_t
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ulp_flow_db_fid_alloc(struct bnxt_ulp_context *ulp_ctxt,
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enum bnxt_ulp_fdb_type flow_type,
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uint16_t func_id,
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uint32_t *fid);
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/*
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* Allocate the flow database entry.
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* The params->critical_resource has to be set to 0 to allocate a new resource.
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*
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* ulp_ctxt [in] Ptr to ulp_context
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* tbl_idx [in] Specify it is regular or default flow
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* fid [in] The index to the flow entry
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* params [in] The contents to be copied into resource
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*
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* returns 0 on success and negative on failure.
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*/
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int32_t
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ulp_flow_db_resource_add(struct bnxt_ulp_context *ulp_ctxt,
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enum bnxt_ulp_fdb_type flow_type,
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uint32_t fid,
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struct ulp_flow_db_res_params *params);
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/*
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* Free the flow database entry.
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* The params->critical_resource has to be set to 1 to free the first resource.
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*
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* ulp_ctxt [in] Ptr to ulp_context
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* tbl_idx [in] Specify it is regular or default flow
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* fid [in] The index to the flow entry
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* params [in/out] The contents to be copied into params.
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* Only the critical_resource needs to be set by the caller.
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*
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* Returns 0 on success and negative on failure.
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*/
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int32_t
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ulp_flow_db_resource_del(struct bnxt_ulp_context *ulp_ctxt,
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enum bnxt_ulp_fdb_type flow_type,
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uint32_t fid,
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struct ulp_flow_db_res_params *params);
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/*
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* Free the flow database entry
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*
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* ulp_ctxt [in] Ptr to ulp_context
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* tbl_idx [in] Specify it is regular or default flow
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* fid [in] The index to the flow entry
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*
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* returns 0 on success and negative on failure.
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*/
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int32_t
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ulp_flow_db_fid_free(struct bnxt_ulp_context *ulp_ctxt,
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enum bnxt_ulp_fdb_type tbl_idx,
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uint32_t fid);
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/*
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*Get the flow database entry details
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*
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* ulp_ctxt [in] Ptr to ulp_context
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* tbl_idx [in] Specify it is regular or default flow
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* fid [in] The index to the flow entry
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* nxt_idx [in/out] the index to the next entry
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* params [out] The contents to be copied into params.
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*
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* returns 0 on success and negative on failure.
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*/
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int32_t
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ulp_flow_db_resource_get(struct bnxt_ulp_context *ulp_ctxt,
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enum bnxt_ulp_fdb_type flow_type,
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uint32_t fid,
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uint32_t *nxt_idx,
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struct ulp_flow_db_res_params *params);
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/*
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* Flush all flows in the flow database.
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*
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* ulp_ctxt [in] Ptr to ulp context
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* tbl_idx [in] The index to table
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*
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* returns 0 on success or negative number on failure
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*/
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int32_t
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ulp_flow_db_flush_flows(struct bnxt_ulp_context *ulp_ctx,
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uint32_t idx);
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/*
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* Flush all flows in the flow database that belong to a device function.
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*
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* ulp_ctxt [in] Ptr to ulp context
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* tbl_idx [in] The index to table
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*
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* returns 0 on success or negative number on failure
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*/
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int32_t
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ulp_flow_db_function_flow_flush(struct bnxt_ulp_context *ulp_ctx,
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uint16_t func_id);
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/*
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* Flush all flows in the flow database that are associated with the session.
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*
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* ulp_ctxt [in] Ptr to ulp context
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*
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* returns 0 on success or negative number on failure
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*/
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int32_t
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ulp_flow_db_session_flow_flush(struct bnxt_ulp_context *ulp_ctx);
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/*
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* Check that flow id matches the function id or not
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*
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* ulp_ctxt [in] Ptr to ulp context
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* flow_id [in] flow id of the flow.
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* func_id [in] The func_id to be set, for reset pass zero.
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*
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* returns true on success or false on failure
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*/
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bool
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ulp_flow_db_validate_flow_func(struct bnxt_ulp_context *ulp_ctx,
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uint32_t flow_id,
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uint32_t func_id);
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/*
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* Api to get the cfa action pointer from a flow.
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*
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* ulp_ctxt [in] Ptr to ulp context
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* flow_id [in] flow id
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* cfa_action [out] The resource handle stored in the flow database
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*
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* returns 0 on success
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*/
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int32_t
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ulp_default_flow_db_cfa_action_get(struct bnxt_ulp_context *ulp_ctx,
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uint32_t flow_id,
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uint16_t *cfa_action);
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/*
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* Allocate the entry in the parent-child database
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*
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* ulp_ctxt [in] Ptr to ulp_context
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* fid [in] The flow id to the flow entry
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*
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* returns index on success and negative on failure.
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*/
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int32_t
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ulp_flow_db_parent_flow_alloc(struct bnxt_ulp_context *ulp_ctxt,
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uint32_t fid);
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/*
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* Free the entry in the parent-child database
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*
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* ulp_ctxt [in] Ptr to ulp_context
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* fid [in] The flow id to the flow entry
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*
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* returns 0 on success and negative on failure.
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*/
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int32_t
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ulp_flow_db_parent_flow_free(struct bnxt_ulp_context *ulp_ctxt,
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uint32_t fid);
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/*
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* Set or reset the child flow in the parent-child database
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*
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* ulp_ctxt [in] Ptr to ulp_context
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* parent_fid [in] The flow id of the parent flow entry
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* child_fid [in] The flow id of the child flow entry
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* set_flag [in] Use 1 for setting child, 0 to reset
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*
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* returns zero on success and negative on failure.
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*/
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int32_t
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ulp_flow_db_parent_child_flow_set(struct bnxt_ulp_context *ulp_ctxt,
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uint32_t parent_fid,
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uint32_t child_fid,
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uint32_t set_flag);
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/*
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* Get the parent index from the parent-child database
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*
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* ulp_ctxt [in] Ptr to ulp_context
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* parent_fid [in] The flow id of the parent flow entry
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* parent_idx [out] The parent index of parent flow entry
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*
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* returns zero on success and negative on failure.
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*/
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int32_t
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ulp_flow_db_parent_flow_idx_get(struct bnxt_ulp_context *ulp_ctxt,
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uint32_t parent_fid,
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uint32_t *parent_idx);
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/*
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* Get the next child flow in the parent-child database
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*
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* ulp_ctxt [in] Ptr to ulp_context
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* parent_fid [in] The flow id of the parent flow entry
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* child_fid [in/out] The flow id of the child flow entry
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*
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* returns zero on success and negative on failure.
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* Pass child_fid as zero for first entry.
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*/
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int32_t
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ulp_flow_db_parent_child_flow_next_entry_get(struct bnxt_ulp_flow_db *flow_db,
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uint32_t parent_idx,
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uint32_t *child_fid);
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/*
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* Orphan the child flow entry
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* This is called only for child flows that have
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* BNXT_ULP_RESOURCE_FUNC_CHILD_FLOW resource
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*
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* ulp_ctxt [in] Ptr to ulp_context
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* flow_type [in] Specify it is regular or default flow
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* fid [in] The index to the flow entry
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*
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* Returns 0 on success and negative on failure.
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*/
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int32_t
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ulp_flow_db_child_flow_reset(struct bnxt_ulp_context *ulp_ctxt,
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enum bnxt_ulp_fdb_type flow_type,
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uint32_t fid);
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/*
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* Create parent flow in the parent flow tbl
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*
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* parms [in] Ptr to mapper params
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*
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* Returns 0 on success and negative on failure.
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*/
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int32_t
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ulp_flow_db_parent_flow_create(struct bnxt_ulp_mapper_parms *parms);
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/*
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* Create child flow in the parent flow tbl
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*
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* parms [in] Ptr to mapper params
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*
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* Returns 0 on success and negative on failure.
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*/
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int32_t
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ulp_flow_db_child_flow_create(struct bnxt_ulp_mapper_parms *parms);
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/*
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* Update the parent counters
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*
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* ulp_ctxt [in] Ptr to ulp_context
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* parent_fid [in] The flow id of the parent flow entry
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* packet_count [in] - packet count
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* byte_count [in] - byte count
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*
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* returns 0 on success
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*/
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int32_t
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ulp_flow_db_parent_flow_count_update(struct bnxt_ulp_context *ulp_ctxt,
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uint32_t parent_fid,
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uint64_t packet_count,
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uint64_t byte_count);
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/*
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* Get the parent accumulation counters
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*
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* ulp_ctxt [in] Ptr to ulp_context
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* parent_fid [in] The flow id of the parent flow entry
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* packet_count [out] - packet count
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* byte_count [out] - byte count
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*
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* returns 0 on success
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*/
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int32_t
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ulp_flow_db_parent_flow_count_get(struct bnxt_ulp_context *ulp_ctxt,
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uint32_t parent_fid,
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uint64_t *packet_count,
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uint64_t *byte_count,
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uint8_t count_reset);
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/*
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* reset the parent accumulation counters
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*
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* ulp_ctxt [in] Ptr to ulp_context
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*
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* returns none
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*/
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void
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ulp_flow_db_parent_flow_count_reset(struct bnxt_ulp_context *ulp_ctxt);
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#endif /* _ULP_FLOW_DB_H_ */
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