drivers/net/bnxt/tf_ulp/ulp_mapper.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2019 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.h"
  14 #include "ulp_template_struct.h"
  15 #include "bnxt_ulp.h"
  16 #include "ulp_utils.h"
  17
  18 #define ULP_SZ_BITS2BYTES(x) (((x) + 7) / 8)
  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_cache_entry {
  36         uint32_t ref_count;
  37         uint16_t tcam_idx;
  38         uint16_t idents[BNXT_ULP_CACHE_TBL_IDENT_MAX_NUM];
  39         uint8_t ident_types[BNXT_ULP_CACHE_TBL_IDENT_MAX_NUM];
  40 };
  41
  42 struct bnxt_ulp_mapper_glb_resource_entry {
  43         enum bnxt_ulp_resource_func     resource_func;
  44         uint32_t                        resource_type; /* TF_ enum type */
  45         uint64_t                        resource_hndl;
  46 };
  47
  48 struct bnxt_ulp_mapper_data {
  49         struct bnxt_ulp_mapper_glb_resource_entry
  50                 glb_res_tbl[TF_DIR_MAX][BNXT_ULP_GLB_RESOURCE_INFO_TBL_MAX_SZ];
  51         struct bnxt_ulp_mapper_cache_entry
  52                 *cache_tbl[BNXT_ULP_CACHE_TBL_MAX_SZ];
  53 };
  54
  55 /* Internal Structure for passing the arguments around */
  56 struct bnxt_ulp_mapper_parms {
  57         uint32_t                                dev_id;
  58         enum bnxt_ulp_byte_order                order;
  59         uint32_t                                act_tid;
  60         struct bnxt_ulp_mapper_act_tbl_info     *atbls;
  61         uint32_t                                num_atbls;
  62         uint32_t                                class_tid;
  63         struct bnxt_ulp_mapper_class_tbl_info   *ctbls;
  64         uint32_t                                num_ctbls;
  65         struct ulp_rte_act_prop                 *act_prop;
  66         struct ulp_rte_act_bitmap               *act_bitmap;
  67         struct ulp_rte_hdr_field                *hdr_field;
  68         uint32_t                                *comp_fld;
  69         struct ulp_regfile                      *regfile;
  70         struct tf                               *tfp;
  71         struct bnxt_ulp_context                 *ulp_ctx;
  72         uint8_t                                 encap_byte_swap;
  73         uint32_t                                fid;
  74         enum bnxt_ulp_flow_db_tables            tbl_idx;
  75         struct bnxt_ulp_mapper_data             *mapper_data;
  76         enum bnxt_ulp_cache_table_opc           tcam_tbl_opc;
  77         struct bnxt_ulp_mapper_cache_entry      *cache_ptr;
  78         struct bnxt_ulp_device_params           *device_params;
  79 };
  80
  81 struct bnxt_ulp_mapper_create_parms {
  82         uint32_t                        app_priority;
  83         struct ulp_rte_hdr_bitmap       *hdr_bitmap;
  84         struct ulp_rte_hdr_field        *hdr_field;
  85         uint32_t                        *comp_fld;
  86         struct ulp_rte_act_bitmap       *act;
  87         struct ulp_rte_act_prop         *act_prop;
  88         uint32_t                        class_tid;
  89         uint32_t                        act_tid;
  90         uint16_t                        func_id;
  91         enum ulp_direction_type         dir;
  92 };
  93
  94 /* Function to initialize any dynamic mapper data. */
  95 int32_t
  96 ulp_mapper_init(struct bnxt_ulp_context *ulp_ctx);
  97
  98 /* Function to release all dynamic mapper data. */
  99 void
 100 ulp_mapper_deinit(struct bnxt_ulp_context *ulp_ctx);
 101
 102 /*
 103  * Function to handle the mapping of the Flow to be compatible
 104  * with the underlying hardware.
 105  */
 106 int32_t
 107 ulp_mapper_flow_create(struct bnxt_ulp_context  *ulp_ctx,
 108                        struct bnxt_ulp_mapper_create_parms *parms,
 109                        uint32_t *flowid);
 110
 111 /* Function that frees all resources associated with the flow. */
 112 int32_t
 113 ulp_mapper_flow_destroy(struct bnxt_ulp_context *ulp_ctx, uint32_t fid);
 114
 115 /*
 116  * Function that frees all resources and can be called on default or regular
 117  * flows
 118  */
 119 int32_t
 120 ulp_mapper_resources_free(struct bnxt_ulp_context       *ulp_ctx,
 121                           uint32_t fid,
 122                           enum bnxt_ulp_flow_db_tables  tbl_type);
 123
 124 #endif /* _ULP_MAPPER_H_ */