drivers/net/bnxt/tf_ulp/ulp_mapper.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2021 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #ifndef _ULP_MAPPER_H_
   7 #define _ULP_MAPPER_H_
   8
   9 #include <rte_log.h>
  10 #include <rte_flow.h>
  11 #include <rte_flow_driver.h>
  12 #include "tf_core.h"
  13 #include "ulp_template_db_enum.h"
  14 #include "ulp_template_struct.h"
  15 #include "bnxt_ulp.h"
  16 #include "ulp_utils.h"
  17 #include "ulp_gen_tbl.h"
  18
  19 #define ULP_IDENTS_INVALID ((uint16_t)0xffff)
  20
  21 /*
  22  * The cache table opcode is used to convey informat from the cache handler
  23  * to the tcam handler.  The opcodes do the following:
  24  * NORMAL - tcam should process all instructions as normal
  25  * SKIP - tcam is using the cached entry and doesn't need to process the
  26  *      instruction.
  27  * ALLOC - tcam needs to allocate the tcam index and store in the cache entry
  28  */
  29 enum bnxt_ulp_cache_table_opc {
  30         BNXT_ULP_MAPPER_TCAM_TBL_OPC_NORMAL,
  31         BNXT_ULP_MAPPER_TCAM_TBL_OPC_CACHE_SKIP,
  32         BNXT_ULP_MAPPER_TCAM_TBL_OPC_CACHE_ALLOC
  33 };
  34
  35 struct bnxt_ulp_mapper_glb_resource_entry {
  36         enum bnxt_ulp_resource_func     resource_func;
  37         uint32_t                        resource_type; /* TF_ enum type */
  38         uint64_t                        resource_hndl;
  39 };
  40
  41 struct bnxt_ulp_mapper_data {
  42         struct bnxt_ulp_mapper_glb_resource_entry
  43                 glb_res_tbl[TF_DIR_MAX][BNXT_ULP_GLB_RESOURCE_TBL_MAX_SZ];
  44         struct ulp_mapper_gen_tbl_list gen_tbl_list[BNXT_ULP_GEN_TBL_MAX_SZ];
  45 };
  46
  47 /* Internal Structure for passing the arguments around */
  48 struct bnxt_ulp_mapper_parms {
  49         enum bnxt_ulp_template_type             tmpl_type;
  50         uint32_t                                dev_id;
  51         uint32_t                                act_tid;
  52         struct bnxt_ulp_mapper_tbl_info         *atbls; /* action table */
  53         uint32_t                                num_atbls;
  54         uint32_t                                class_tid;
  55         struct bnxt_ulp_mapper_tbl_info         *ctbls; /* class table */
  56         uint32_t                                num_ctbls;
  57         struct ulp_rte_act_prop                 *act_prop;
  58         struct ulp_rte_act_bitmap               *act_bitmap;
  59         struct ulp_rte_hdr_bitmap               *hdr_bitmap;
  60         struct ulp_rte_hdr_field                *hdr_field;
  61         struct ulp_rte_field_bitmap             *fld_bitmap;
  62         uint32_t                                *comp_fld;
  63         struct ulp_regfile                      *regfile;
  64         struct tf                               *tfp;
  65         struct bnxt_ulp_context                 *ulp_ctx;
  66         uint32_t                                fid;
  67         enum bnxt_ulp_fdb_type                  flow_type;
  68         struct bnxt_ulp_mapper_data             *mapper_data;
  69         enum bnxt_ulp_cache_table_opc           tcam_tbl_opc;
  70         struct bnxt_ulp_device_params           *device_params;
  71         uint32_t                                parent_fid;
  72         uint32_t                                parent_flow;
  73         uint8_t                                 tun_idx;
  74 };
  75
  76 struct bnxt_ulp_mapper_create_parms {
  77         uint32_t                        app_priority;
  78         struct ulp_rte_hdr_bitmap       *hdr_bitmap;
  79         struct ulp_rte_hdr_field        *hdr_field;
  80         uint32_t                        *comp_fld;
  81         struct ulp_rte_act_bitmap       *act;
  82         struct ulp_rte_act_prop         *act_prop;
  83         struct ulp_rte_field_bitmap     *fld_bitmap;
  84         uint32_t                        class_tid;
  85         uint32_t                        act_tid;
  86         uint16_t                        func_id;
  87         uint32_t                        dir_attr;
  88         enum bnxt_ulp_fdb_type          flow_type;
  89
  90         uint32_t                        flow_id;
  91         /* if set then create it as a child flow with parent as parent_fid */
  92         uint32_t                        parent_fid;
  93         /* if set then create a parent flow */
  94         uint32_t                        parent_flow;
  95         uint8_t                         tun_idx;
  96 };
  97
  98 /* Function to initialize any dynamic mapper data. */
  99 int32_t
 100 ulp_mapper_init(struct bnxt_ulp_context *ulp_ctx);
 101
 102 /* Function to release all dynamic mapper data. */
 103 void
 104 ulp_mapper_deinit(struct bnxt_ulp_context *ulp_ctx);
 105
 106 /*
 107  * Function to handle the mapping of the Flow to be compatible
 108  * with the underlying hardware.
 109  */
 110 int32_t
 111 ulp_mapper_flow_create(struct bnxt_ulp_context  *ulp_ctx,
 112                        struct bnxt_ulp_mapper_create_parms *parms);
 113
 114 /* Function that frees all resources associated with the flow. */
 115 int32_t
 116 ulp_mapper_flow_destroy(struct bnxt_ulp_context *ulp_ctx,
 117                         enum bnxt_ulp_fdb_type flow_type,
 118                         uint32_t fid);
 119
 120 /*
 121  * Function that frees all resources and can be called on default or regular
 122  * flows
 123  */
 124 int32_t
 125 ulp_mapper_resources_free(struct bnxt_ulp_context *ulp_ctx,
 126                           enum bnxt_ulp_fdb_type flow_type,
 127                           uint32_t fid);
 128
 129 #endif /* _ULP_MAPPER_H_ */