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 #define ULP_MAPPER_CACHE_RES_TBL_ID_SHFT 16
  21 #define ULP_MAPPER_CACHE_RES_TBL_TYPE_SHFT 0
  22 #define ULP_MAPPER_CACHE_RES_TBL_MASK ((uint32_t)0x0000ffff)
  23
  24 /*
  25  * The cache table opcode is used to convey informat from the cache handler
  26  * to the tcam handler.  The opcodes do the following:
  27  * NORMAL - tcam should process all instructions as normal
  28  * SKIP - tcam is using the cached entry and doesn't need to process the
  29  *      instruction.
  30  * ALLOC - tcam needs to allocate the tcam index and store in the cache entry
  31  */
  32 enum bnxt_ulp_cache_table_opc {
  33         BNXT_ULP_MAPPER_TCAM_TBL_OPC_NORMAL,
  34         BNXT_ULP_MAPPER_TCAM_TBL_OPC_CACHE_SKIP,
  35         BNXT_ULP_MAPPER_TCAM_TBL_OPC_CACHE_ALLOC
  36 };
  37
  38 struct bnxt_ulp_mapper_cache_entry {
  39         uint32_t ref_count;
  40         uint16_t tcam_idx;
  41         uint16_t idents[BNXT_ULP_CACHE_TBL_IDENT_MAX_NUM];
  42         uint8_t ident_types[BNXT_ULP_CACHE_TBL_IDENT_MAX_NUM];
  43 };
  44
  45 struct bnxt_ulp_mapper_def_id_entry {
  46         enum tf_identifier_type ident_type;
  47         uint64_t ident;
  48 };
  49
  50 struct bnxt_ulp_mapper_data {
  51         struct bnxt_ulp_mapper_def_id_entry
  52                 dflt_ids[TF_DIR_MAX][BNXT_ULP_DEF_IDENT_INFO_TBL_MAX_SZ];
  53         struct bnxt_ulp_mapper_cache_entry
  54                 *cache_tbl[BNXT_ULP_CACHE_TBL_MAX_SZ];
  55 };
  56
  57 /* Internal Structure for passing the arguments around */
  58 struct bnxt_ulp_mapper_parms {
  59         uint32_t                                dev_id;
  60         enum bnxt_ulp_byte_order                order;
  61         uint32_t                                act_tid;
  62         struct bnxt_ulp_mapper_act_tbl_info     *atbls;
  63         uint32_t                                num_atbls;
  64         uint32_t                                class_tid;
  65         struct bnxt_ulp_mapper_class_tbl_info   *ctbls;
  66         uint32_t                                num_ctbls;
  67         struct ulp_rte_act_prop                 *act_prop;
  68         struct ulp_rte_act_bitmap               *act_bitmap;
  69         struct ulp_rte_hdr_field                *hdr_field;
  70         struct ulp_regfile                      *regfile;
  71         struct tf                               *tfp;
  72         struct bnxt_ulp_context                 *ulp_ctx;
  73         uint8_t                                 encap_byte_swap;
  74         uint32_t                                fid;
  75         enum bnxt_ulp_flow_db_tables            tbl_idx;
  76         struct bnxt_ulp_mapper_data             *mapper_data;
  77         enum bnxt_ulp_cache_table_opc           tcam_tbl_opc;
  78         struct bnxt_ulp_mapper_cache_entry      *cache_ptr;
  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         struct ulp_rte_act_bitmap       *act;
  86         struct ulp_rte_act_prop         *act_prop;
  87         uint32_t                        class_tid;
  88         uint32_t                        act_tid;
  89         uint16_t                        func_id;
  90         enum ulp_direction_type         dir;
  91 };
  92
  93 /* Function to initialize any dynamic mapper data. */
  94 int32_t
  95 ulp_mapper_init(struct bnxt_ulp_context *ulp_ctx);
  96
  97 /* Function to release all dynamic mapper data. */
  98 void
  99 ulp_mapper_deinit(struct bnxt_ulp_context *ulp_ctx);
 100
 101 /*
 102  * Function to handle the mapping of the Flow to be compatible
 103  * with the underlying hardware.
 104  */
 105 int32_t
 106 ulp_mapper_flow_create(struct bnxt_ulp_context  *ulp_ctx,
 107                        struct bnxt_ulp_mapper_create_parms *parms,
 108                        uint32_t *flowid);
 109
 110 /* Function that frees all resources associated with the flow. */
 111 int32_t
 112 ulp_mapper_flow_destroy(struct bnxt_ulp_context *ulp_ctx, uint32_t fid);
 113
 114 /*
 115  * Function that frees all resources and can be called on default or regular
 116  * flows
 117  */
 118 int32_t
 119 ulp_mapper_resources_free(struct bnxt_ulp_context       *ulp_ctx,
 120                           uint32_t fid,
 121                           enum bnxt_ulp_flow_db_tables  tbl_type);
 122
 123 #endif /* _ULP_MAPPER_H_ */