drivers/net/bnxt/tf_core/tf_tbl.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2019-2020 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #ifndef _TF_TBL_H_
   7 #define _TF_TBL_H_
   8
   9 #include <stdint.h>
  10 #include "stack.h"
  11
  12 enum tf_pg_tbl_lvl {
  13         PT_LVL_0,
  14         PT_LVL_1,
  15         PT_LVL_2,
  16         PT_LVL_MAX
  17 };
  18
  19 enum tf_em_table_type {
  20         KEY0_TABLE,
  21         KEY1_TABLE,
  22         RECORD_TABLE,
  23         EFC_TABLE,
  24         MAX_TABLE
  25 };
  26
  27 struct tf_em_page_tbl {
  28         uint32_t        pg_count;
  29         uint32_t        pg_size;
  30         void            **pg_va_tbl;
  31         uint64_t        *pg_pa_tbl;
  32 };
  33
  34 struct tf_em_table {
  35         int                             type;
  36         uint32_t                        num_entries;
  37         uint16_t                        ctx_id;
  38         uint32_t                        entry_size;
  39         int                             num_lvl;
  40         uint32_t                        page_cnt[PT_LVL_MAX];
  41         uint64_t                        num_data_pages;
  42         void                            *l0_addr;
  43         uint64_t                        l0_dma_addr;
  44         struct tf_em_page_tbl pg_tbl[PT_LVL_MAX];
  45 };
  46
  47 struct tf_em_ctx_mem_info {
  48         struct tf_em_table              em_tables[MAX_TABLE];
  49 };
  50
  51 /** table scope control block content */
  52 struct tf_em_caps {
  53         uint32_t flags;
  54         uint32_t supported;
  55         uint32_t max_entries_supported;
  56         uint16_t key_entry_size;
  57         uint16_t record_entry_size;
  58         uint16_t efc_entry_size;
  59 };
  60
  61 /** Invalid table scope id */
  62 #define TF_TBL_SCOPE_INVALID 0xffffffff
  63
  64 /**
  65  * Table Scope Control Block
  66  *
  67  * Holds private data for a table scope. Only one instance of a table
  68  * scope with Internal EM is supported.
  69  */
  70 struct tf_tbl_scope_cb {
  71         uint32_t tbl_scope_id;
  72         int index;
  73         struct tf_em_ctx_mem_info  em_ctx_info[TF_DIR_MAX];
  74         struct tf_em_caps          em_caps[TF_DIR_MAX];
  75         struct stack               ext_pool[TF_DIR_MAX][TF_EXT_POOL_CNT_MAX];
  76         uint32_t              *ext_pool_mem[TF_DIR_MAX][TF_EXT_POOL_CNT_MAX];
  77 };
  78
  79 /** Hardware Page sizes supported for EEM: 4K, 8K, 64K, 256K, 1M, 2M, 4M, 1G.
  80  * Round-down other page sizes to the lower hardware page size supported.
  81  */
  82 #define PAGE_SHIFT 22 /** 2M */
  83
  84 #if (PAGE_SHIFT < 12)                           /** < 4K >> 4K */
  85 #define TF_EM_PAGE_SHIFT 12
  86 #define TF_EM_PAGE_SIZE_ENUM HWRM_TF_CTXT_MEM_RGTR_INPUT_PAGE_SIZE_4K
  87 #elif (PAGE_SHIFT <= 13)                        /** 4K, 8K */
  88 #define TF_EM_PAGE_SHIFT 13
  89 #define TF_EM_PAGE_SIZE_ENUM HWRM_TF_CTXT_MEM_RGTR_INPUT_PAGE_SIZE_8K
  90 #elif (PAGE_SHIFT < 16)                         /** 16K, 32K >> 8K */
  91 #define TF_EM_PAGE_SHIFT 15
  92 #define TF_EM_PAGE_SIZE_ENUM HWRM_TF_CTXT_MEM_RGTR_INPUT_PAGE_SIZE_32K
  93 #elif (PAGE_SHIFT <= 17)                        /** 64K, 128K >> 64K */
  94 #define TF_EM_PAGE_SHIFT 16
  95 #define TF_EM_PAGE_SIZE_ENUM HWRM_TF_CTXT_MEM_RGTR_INPUT_PAGE_SIZE_64K
  96 #elif (PAGE_SHIFT <= 19)                        /** 256K, 512K >> 256K */
  97 #define TF_EM_PAGE_SHIFT 18
  98 #define TF_EM_PAGE_SIZE_ENUM HWRM_TF_CTXT_MEM_RGTR_INPUT_PAGE_SIZE_256K
  99 #elif (PAGE_SHIFT <= 21)                        /** 1M */
 100 #define TF_EM_PAGE_SHIFT 20
 101 #define TF_EM_PAGE_SIZE_ENUM HWRM_TF_CTXT_MEM_RGTR_INPUT_PAGE_SIZE_1M
 102 #elif (PAGE_SHIFT <= 22)                        /** 2M, 4M */
 103 #define TF_EM_PAGE_SHIFT 21
 104 #define TF_EM_PAGE_SIZE_ENUM HWRM_TF_CTXT_MEM_RGTR_INPUT_PAGE_SIZE_2M
 105 #elif (PAGE_SHIFT <= 29)                        /** 8M ... 512M >> 4M */
 106 #define TF_EM_PAGE_SHIFT 22
 107 #define TF_EM_PAGE_SIZE_ENUM HWRM_TF_CTXT_MEM_RGTR_INPUT_PAGE_SIZE_4M
 108 #else                                           /** >= 1G >> 1G */
 109 #define TF_EM_PAGE_SHIFT        30
 110 #define TF_EM_PAGE_SIZE_ENUM HWRM_TF_CTXT_MEM_RGTR_INPUT_PAGE_SIZE_1G
 111 #endif
 112
 113 #define TF_EM_PAGE_SIZE (1 << TF_EM_PAGE_SHIFT)
 114 #define TF_EM_PAGE_ALIGNMENT (1 << TF_EM_PAGE_SHIFT)
 115
 116 /**
 117  * Initialize table pool structure to indicate
 118  * no table scope has been associated with the
 119  * external pool of indexes.
 120  *
 121  * [in] session
 122  */
 123 void
 124 tf_init_tbl_pool(struct tf_session *session);
 125
 126 #endif /* _TF_TBL_H_ */