drivers/net/ice/base/ice_parser.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2001-2021 Intel Corporation
   3  */
   4
   5 #include "ice_common.h"
   6 #include "ice_parser_util.h"
   7
   8 #define ICE_SEC_DATA_OFFSET                             4
   9 #define ICE_SID_RXPARSER_IMEM_ENTRY_SIZE                48
  10 #define ICE_SID_RXPARSER_METADATA_INIT_ENTRY_SIZE       24
  11 #define ICE_SID_RXPARSER_CAM_ENTRY_SIZE                 16
  12 #define ICE_SID_RXPARSER_PG_SPILL_ENTRY_SIZE            17
  13 #define ICE_SID_RXPARSER_NOMATCH_CAM_ENTRY_SIZE         12
  14 #define ICE_SID_RXPARSER_NOMATCH_SPILL_ENTRY_SIZE       13
  15 #define ICE_SID_RXPARSER_BOOST_TCAM_ENTRY_SIZE          88
  16 #define ICE_SID_RXPARSER_MARKER_TYPE_ENTRY_SIZE         24
  17
  18 #define ICE_SEC_LBL_DATA_OFFSET                         2
  19 #define ICE_SID_LBL_ENTRY_SIZE                          66
  20
  21 void ice_lbl_dump(struct ice_hw *hw, struct ice_lbl_item *item)
  22 {
  23         ice_info(hw, "index = %d\n", item->idx);
  24         ice_info(hw, "label = %s\n", item->label);
  25 }
  26
  27 void ice_parse_item_dflt(struct ice_hw *hw, u16 idx, void *item,
  28                          void *data, int size)
  29 {
  30         ice_memcpy(item, data, size, ICE_DMA_TO_NONDMA);
  31 }
  32
  33 /**
  34  * ice_parser_sect_item_get - parse a item from a section
  35  * @sect_type: section type
  36  * @section: section object
  37  * @index: index of the item to get
  38  * @offset: dummy as prototype of ice_pkg_enum_entry's last parameter
  39  */
  40 void *ice_parser_sect_item_get(u32 sect_type, void *section,
  41                                u32 index, u32 *offset)
  42 {
  43         struct ice_pkg_sect_hdr *hdr;
  44         int data_off = ICE_SEC_DATA_OFFSET;
  45         int size;
  46
  47         if (!section)
  48                 return NULL;
  49
  50         switch (sect_type) {
  51         case ICE_SID_RXPARSER_IMEM:
  52                 size = ICE_SID_RXPARSER_IMEM_ENTRY_SIZE;
  53                 break;
  54         case ICE_SID_RXPARSER_METADATA_INIT:
  55                 size = ICE_SID_RXPARSER_METADATA_INIT_ENTRY_SIZE;
  56                 break;
  57         case ICE_SID_RXPARSER_CAM:
  58                 size = ICE_SID_RXPARSER_CAM_ENTRY_SIZE;
  59                 break;
  60         case ICE_SID_RXPARSER_PG_SPILL:
  61                 size = ICE_SID_RXPARSER_PG_SPILL_ENTRY_SIZE;
  62                 break;
  63         case ICE_SID_RXPARSER_NOMATCH_CAM:
  64                 size = ICE_SID_RXPARSER_NOMATCH_CAM_ENTRY_SIZE;
  65                 break;
  66         case ICE_SID_RXPARSER_NOMATCH_SPILL:
  67                 size = ICE_SID_RXPARSER_NOMATCH_SPILL_ENTRY_SIZE;
  68                 break;
  69         case ICE_SID_RXPARSER_BOOST_TCAM:
  70                 size = ICE_SID_RXPARSER_BOOST_TCAM_ENTRY_SIZE;
  71                 break;
  72         case ICE_SID_LBL_RXPARSER_TMEM:
  73                 data_off = ICE_SEC_LBL_DATA_OFFSET;
  74                 size = ICE_SID_LBL_ENTRY_SIZE;
  75                 break;
  76         case ICE_SID_RXPARSER_MARKER_PTYPE:
  77                 size = ICE_SID_RXPARSER_MARKER_TYPE_ENTRY_SIZE;
  78                 break;
  79         default:
  80                 return NULL;
  81         }
  82
  83         hdr = (struct ice_pkg_sect_hdr *)section;
  84         if (index >= LE16_TO_CPU(hdr->count))
  85                 return NULL;
  86
  87         return (void *)((uintptr_t)section + data_off + index * size);
  88 }
  89
  90 /**
  91  * ice_parser_create_table - create a item table from a section
  92  * @hw: pointer to the hardware structure
  93  * @sect_type: section type
  94  * @item_size: item size in byte
  95  * @length: number of items in the table to create
  96  * @item_get: the function will be parsed to ice_pkg_enum_entry
  97  * @parser_item: the function to parse the item
  98  * @no_offset: ignore header offset, calculate index from 0
  99  */
 100 void *ice_parser_create_table(struct ice_hw *hw, u32 sect_type,
 101                               u32 item_size, u32 length,
 102                               void *(*item_get)(u32 sect_type, void *section,
 103                                                 u32 index, u32 *offset),
 104                               void (*parse_item)(struct ice_hw *hw, u16 idx,
 105                                                  void *item, void *data,
 106                                                  int size),
 107                               bool no_offset)
 108 {
 109         struct ice_seg *seg = hw->seg;
 110         struct ice_pkg_enum state;
 111         u16 idx = 0xffff;
 112         void *table;
 113         void *data;
 114
 115         if (!seg)
 116                 return NULL;
 117
 118         table = ice_malloc(hw, item_size * length);
 119         if (!table) {
 120                 ice_debug(hw, ICE_DBG_PARSER, "failed to allocate memory for table type %d.\n",
 121                           sect_type);
 122                 return NULL;
 123         }
 124
 125         ice_memset(&state, 0, sizeof(state), ICE_NONDMA_MEM);
 126         do {
 127                 data = ice_pkg_enum_entry(seg, &state, sect_type, NULL,
 128                                           item_get);
 129                 seg = NULL;
 130                 if (data) {
 131                         struct ice_pkg_sect_hdr *hdr =
 132                                 (struct ice_pkg_sect_hdr *)state.sect;
 133
 134                         if (no_offset)
 135                                 idx++;
 136                         else
 137                                 idx = hdr->offset + state.entry_idx;
 138                         parse_item(hw, idx,
 139                                    (void *)((uintptr_t)table + idx * item_size),
 140                                    data, item_size);
 141                 }
 142         } while (data);
 143
 144         return table;
 145 }
 146
 147 /**
 148  * ice_parser_create - create a parser instance
 149  * @hw: pointer to the hardware structure
 150  * @psr: output parameter for a new parser instance be created
 151  */
 152 enum ice_status ice_parser_create(struct ice_hw *hw, struct ice_parser **psr)
 153 {
 154         enum ice_status status;
 155         struct ice_parser *p;
 156
 157         p = (struct ice_parser *)ice_malloc(hw, sizeof(struct ice_parser));
 158
 159         if (!p)
 160                 return ICE_ERR_NO_MEMORY;
 161
 162         p->hw = hw;
 163
 164         p->imem_table = ice_imem_table_get(hw);
 165         if (!p->imem_table) {
 166                 status = ICE_ERR_PARAM;
 167                 goto err;
 168         }
 169
 170         p->mi_table = ice_metainit_table_get(hw);
 171         if (!p->mi_table) {
 172                 status = ICE_ERR_PARAM;
 173                 goto err;
 174         }
 175
 176         p->pg_cam_table = ice_pg_cam_table_get(hw);
 177         if (!p->pg_cam_table) {
 178                 status = ICE_ERR_PARAM;
 179                 goto err;
 180         }
 181
 182         p->pg_sp_cam_table = ice_pg_sp_cam_table_get(hw);
 183         if (!p->pg_sp_cam_table) {
 184                 status = ICE_ERR_PARAM;
 185                 goto err;
 186         }
 187
 188         p->pg_nm_cam_table = ice_pg_nm_cam_table_get(hw);
 189         if (!p->pg_nm_cam_table) {
 190                 status = ICE_ERR_PARAM;
 191                 goto err;
 192         }
 193
 194         p->pg_nm_sp_cam_table = ice_pg_nm_sp_cam_table_get(hw);
 195         if (!p->pg_nm_sp_cam_table) {
 196                 status = ICE_ERR_PARAM;
 197                 goto err;
 198         }
 199
 200         p->bst_tcam_table = ice_bst_tcam_table_get(hw);
 201         if (!p->bst_tcam_table) {
 202                 status = ICE_ERR_PARAM;
 203                 goto err;
 204         }
 205
 206         p->bst_lbl_table = ice_bst_lbl_table_get(hw);
 207         if (!p->bst_lbl_table) {
 208                 status = ICE_ERR_PARAM;
 209                 goto err;
 210         }
 211
 212         p->ptype_mk_tcam_table = ice_ptype_mk_tcam_table_get(hw);
 213         if (!p->ptype_mk_tcam_table) {
 214                 status = ICE_ERR_PARAM;
 215                 goto err;
 216         }
 217
 218         *psr = p;
 219         return ICE_SUCCESS;
 220 err:
 221         ice_parser_destroy(p);
 222         return status;
 223 }
 224
 225 /**
 226  * ice_parser_destroy - destroy a parser instance
 227  * @psr: pointer to a parser instance
 228  */
 229 void ice_parser_destroy(struct ice_parser *psr)
 230 {
 231         ice_free(psr->hw, psr->imem_table);
 232         ice_free(psr->hw, psr->mi_table);
 233         ice_free(psr->hw, psr->pg_cam_table);
 234         ice_free(psr->hw, psr->pg_sp_cam_table);
 235         ice_free(psr->hw, psr->pg_nm_cam_table);
 236         ice_free(psr->hw, psr->pg_nm_sp_cam_table);
 237         ice_free(psr->hw, psr->bst_tcam_table);
 238         ice_free(psr->hw, psr->bst_lbl_table);
 239         ice_free(psr->hw, psr->ptype_mk_tcam_table);
 240
 241         ice_free(psr->hw, psr);
 242 }