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_def_id_entry {
  43         enum tf_identifier_type ident_type;
  44         uint64_t ident;
  45 };
  46
  47 struct bnxt_ulp_mapper_data {
  48         struct bnxt_ulp_mapper_def_id_entry
  49                 dflt_ids[TF_DIR_MAX][BNXT_ULP_DEF_IDENT_INFO_TBL_MAX_SZ];
  50         struct bnxt_ulp_mapper_cache_entry
  51                 *cache_tbl[BNXT_ULP_CACHE_TBL_MAX_SZ];
  52 };
  53
  54 /* Internal Structure for passing the arguments around */
  55 struct bnxt_ulp_mapper_parms {
  56         uint32_t                                dev_id;
  57         enum bnxt_ulp_byte_order                order;
  58         uint32_t                                act_tid;
  59         struct bnxt_ulp_mapper_act_tbl_info     *atbls;
  60         uint32_t                                num_atbls;
  61         uint32_t                                class_tid;
  62         struct bnxt_ulp_mapper_class_tbl_info   *ctbls;
  63         uint32_t                                num_ctbls;
  64         struct ulp_rte_act_prop                 *act_prop;
  65         struct ulp_rte_act_bitmap               *act_bitmap;
  66         struct ulp_rte_hdr_field                *hdr_field;
  67         uint32_t                                *comp_fld;
  68         struct ulp_regfile                      *regfile;
  69         struct tf                               *tfp;
  70         struct bnxt_ulp_context                 *ulp_ctx;
  71         uint8_t                                 encap_byte_swap;
  72         uint32_t                                fid;
  73         enum bnxt_ulp_flow_db_tables            tbl_idx;
  74         struct bnxt_ulp_mapper_data             *mapper_data;
  75         enum bnxt_ulp_cache_table_opc           tcam_tbl_opc;
  76         struct bnxt_ulp_mapper_cache_entry      *cache_ptr;
  77 };
  78
  79 struct bnxt_ulp_mapper_create_parms {
  80         uint32_t                        app_priority;
  81         struct ulp_rte_hdr_bitmap       *hdr_bitmap;
  82         struct ulp_rte_hdr_field        *hdr_field;
  83         uint32_t                        *comp_fld;
  84         struct ulp_rte_act_bitmap       *act;
  85         struct ulp_rte_act_prop         *act_prop;
  86         uint32_t                        class_tid;
  87         uint32_t                        act_tid;
  88         uint16_t                        func_id;
  89         enum ulp_direction_type         dir;
  90 };
  91
  92 /* Function to initialize any dynamic mapper data. */
  93 int32_t
  94 ulp_mapper_init(struct bnxt_ulp_context *ulp_ctx);
  95
  96 /* Function to release all dynamic mapper data. */
  97 void
  98 ulp_mapper_deinit(struct bnxt_ulp_context *ulp_ctx);
  99
 100 /*
 101  * Function to handle the mapping of the Flow to be compatible
 102  * with the underlying hardware.
 103  */
 104 int32_t
 105 ulp_mapper_flow_create(struct bnxt_ulp_context  *ulp_ctx,
 106                        struct bnxt_ulp_mapper_create_parms *parms,
 107                        uint32_t *flowid);
 108
 109 /* Function that frees all resources associated with the flow. */
 110 int32_t
 111 ulp_mapper_flow_destroy(struct bnxt_ulp_context *ulp_ctx, uint32_t fid);
 112
 113 /*
 114  * Function that frees all resources and can be called on default or regular
 115  * flows
 116  */
 117 int32_t
 118 ulp_mapper_resources_free(struct bnxt_ulp_context       *ulp_ctx,
 119                           uint32_t fid,
 120                           enum bnxt_ulp_flow_db_tables  tbl_type);
 121
 122 #endif /* _ULP_MAPPER_H_ */