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 #define ICE_SID_RXPARSER_MARKER_GRP_ENTRY_SIZE          8
  18
  19 #define ICE_SEC_LBL_DATA_OFFSET                         2
  20 #define ICE_SID_LBL_ENTRY_SIZE                          66
  21
  22 void ice_lbl_dump(struct ice_hw *hw, struct ice_lbl_item *item)
  23 {
  24         ice_info(hw, "index = %d\n", item->idx);
  25         ice_info(hw, "label = %s\n", item->label);
  26 }
  27
  28 void ice_parse_item_dflt(struct ice_hw *hw, u16 idx, void *item,
  29                          void *data, int size)
  30 {
  31         ice_memcpy(item, data, size, ICE_DMA_TO_NONDMA);
  32 }
  33
  34 /**
  35  * ice_parser_sect_item_get - parse a item from a section
  36  * @sect_type: section type
  37  * @section: section object
  38  * @index: index of the item to get
  39  * @offset: dummy as prototype of ice_pkg_enum_entry's last parameter
  40  */
  41 void *ice_parser_sect_item_get(u32 sect_type, void *section,
  42                                u32 index, u32 *offset)
  43 {
  44         struct ice_pkg_sect_hdr *hdr;
  45         int data_off = ICE_SEC_DATA_OFFSET;
  46         int size;
  47
  48         if (!section)
  49                 return NULL;
  50
  51         switch (sect_type) {
  52         case ICE_SID_RXPARSER_IMEM:
  53                 size = ICE_SID_RXPARSER_IMEM_ENTRY_SIZE;
  54                 break;
  55         case ICE_SID_RXPARSER_METADATA_INIT:
  56                 size = ICE_SID_RXPARSER_METADATA_INIT_ENTRY_SIZE;
  57                 break;
  58         case ICE_SID_RXPARSER_CAM:
  59                 size = ICE_SID_RXPARSER_CAM_ENTRY_SIZE;
  60                 break;
  61         case ICE_SID_RXPARSER_PG_SPILL:
  62                 size = ICE_SID_RXPARSER_PG_SPILL_ENTRY_SIZE;
  63                 break;
  64         case ICE_SID_RXPARSER_NOMATCH_CAM:
  65                 size = ICE_SID_RXPARSER_NOMATCH_CAM_ENTRY_SIZE;
  66                 break;
  67         case ICE_SID_RXPARSER_NOMATCH_SPILL:
  68                 size = ICE_SID_RXPARSER_NOMATCH_SPILL_ENTRY_SIZE;
  69                 break;
  70         case ICE_SID_RXPARSER_BOOST_TCAM:
  71                 size = ICE_SID_RXPARSER_BOOST_TCAM_ENTRY_SIZE;
  72                 break;
  73         case ICE_SID_LBL_RXPARSER_TMEM:
  74                 data_off = ICE_SEC_LBL_DATA_OFFSET;
  75                 size = ICE_SID_LBL_ENTRY_SIZE;
  76                 break;
  77         case ICE_SID_RXPARSER_MARKER_PTYPE:
  78                 size = ICE_SID_RXPARSER_MARKER_TYPE_ENTRY_SIZE;
  79                 break;
  80         case ICE_SID_RXPARSER_MARKER_GRP:
  81                 size = ICE_SID_RXPARSER_MARKER_GRP_ENTRY_SIZE;
  82                 break;
  83         default:
  84                 return NULL;
  85         }
  86
  87         hdr = (struct ice_pkg_sect_hdr *)section;
  88         if (index >= LE16_TO_CPU(hdr->count))
  89                 return NULL;
  90
  91         return (void *)((uintptr_t)section + data_off + index * size);
  92 }
  93
  94 /**
  95  * ice_parser_create_table - create a item table from a section
  96  * @hw: pointer to the hardware structure
  97  * @sect_type: section type
  98  * @item_size: item size in byte
  99  * @length: number of items in the table to create
 100  * @item_get: the function will be parsed to ice_pkg_enum_entry
 101  * @parser_item: the function to parse the item
 102  * @no_offset: ignore header offset, calculate index from 0
 103  */
 104 void *ice_parser_create_table(struct ice_hw *hw, u32 sect_type,
 105                               u32 item_size, u32 length,
 106                               void *(*item_get)(u32 sect_type, void *section,
 107                                                 u32 index, u32 *offset),
 108                               void (*parse_item)(struct ice_hw *hw, u16 idx,
 109                                                  void *item, void *data,
 110                                                  int size),
 111                               bool no_offset)
 112 {
 113         struct ice_seg *seg = hw->seg;
 114         struct ice_pkg_enum state;
 115         u16 idx = 0xffff;
 116         void *table;
 117         void *data;
 118
 119         if (!seg)
 120                 return NULL;
 121
 122         table = ice_malloc(hw, item_size * length);
 123         if (!table) {
 124                 ice_debug(hw, ICE_DBG_PARSER, "failed to allocate memory for table type %d.\n",
 125                           sect_type);
 126                 return NULL;
 127         }
 128
 129         ice_memset(&state, 0, sizeof(state), ICE_NONDMA_MEM);
 130         do {
 131                 data = ice_pkg_enum_entry(seg, &state, sect_type, NULL,
 132                                           item_get);
 133                 seg = NULL;
 134                 if (data) {
 135                         struct ice_pkg_sect_hdr *hdr =
 136                                 (struct ice_pkg_sect_hdr *)state.sect;
 137
 138                         if (no_offset)
 139                                 idx++;
 140                         else
 141                                 idx = hdr->offset + state.entry_idx;
 142                         parse_item(hw, idx,
 143                                    (void *)((uintptr_t)table + idx * item_size),
 144                                    data, item_size);
 145                 }
 146         } while (data);
 147
 148         return table;
 149 }
 150
 151 /**
 152  * ice_parser_create - create a parser instance
 153  * @hw: pointer to the hardware structure
 154  * @psr: output parameter for a new parser instance be created
 155  */
 156 enum ice_status ice_parser_create(struct ice_hw *hw, struct ice_parser **psr)
 157 {
 158         enum ice_status status;
 159         struct ice_parser *p;
 160
 161         p = (struct ice_parser *)ice_malloc(hw, sizeof(struct ice_parser));
 162
 163         if (!p)
 164                 return ICE_ERR_NO_MEMORY;
 165
 166         p->hw = hw;
 167
 168         p->imem_table = ice_imem_table_get(hw);
 169         if (!p->imem_table) {
 170                 status = ICE_ERR_PARAM;
 171                 goto err;
 172         }
 173
 174         p->mi_table = ice_metainit_table_get(hw);
 175         if (!p->mi_table) {
 176                 status = ICE_ERR_PARAM;
 177                 goto err;
 178         }
 179
 180         p->pg_cam_table = ice_pg_cam_table_get(hw);
 181         if (!p->pg_cam_table) {
 182                 status = ICE_ERR_PARAM;
 183                 goto err;
 184         }
 185
 186         p->pg_sp_cam_table = ice_pg_sp_cam_table_get(hw);
 187         if (!p->pg_sp_cam_table) {
 188                 status = ICE_ERR_PARAM;
 189                 goto err;
 190         }
 191
 192         p->pg_nm_cam_table = ice_pg_nm_cam_table_get(hw);
 193         if (!p->pg_nm_cam_table) {
 194                 status = ICE_ERR_PARAM;
 195                 goto err;
 196         }
 197
 198         p->pg_nm_sp_cam_table = ice_pg_nm_sp_cam_table_get(hw);
 199         if (!p->pg_nm_sp_cam_table) {
 200                 status = ICE_ERR_PARAM;
 201                 goto err;
 202         }
 203
 204         p->bst_tcam_table = ice_bst_tcam_table_get(hw);
 205         if (!p->bst_tcam_table) {
 206                 status = ICE_ERR_PARAM;
 207                 goto err;
 208         }
 209
 210         p->bst_lbl_table = ice_bst_lbl_table_get(hw);
 211         if (!p->bst_lbl_table) {
 212                 status = ICE_ERR_PARAM;
 213                 goto err;
 214         }
 215
 216         p->ptype_mk_tcam_table = ice_ptype_mk_tcam_table_get(hw);
 217         if (!p->ptype_mk_tcam_table) {
 218                 status = ICE_ERR_PARAM;
 219                 goto err;
 220         }
 221
 222         p->mk_grp_table = ice_mk_grp_table_get(hw);
 223         if (!p->mk_grp_table) {
 224                 status = ICE_ERR_PARAM;
 225                 goto err;
 226         }
 227
 228         *psr = p;
 229         return ICE_SUCCESS;
 230 err:
 231         ice_parser_destroy(p);
 232         return status;
 233 }
 234
 235 /**
 236  * ice_parser_destroy - destroy a parser instance
 237  * @psr: pointer to a parser instance
 238  */
 239 void ice_parser_destroy(struct ice_parser *psr)
 240 {
 241         ice_free(psr->hw, psr->imem_table);
 242         ice_free(psr->hw, psr->mi_table);
 243         ice_free(psr->hw, psr->pg_cam_table);
 244         ice_free(psr->hw, psr->pg_sp_cam_table);
 245         ice_free(psr->hw, psr->pg_nm_cam_table);
 246         ice_free(psr->hw, psr->pg_nm_sp_cam_table);
 247         ice_free(psr->hw, psr->bst_tcam_table);
 248         ice_free(psr->hw, psr->bst_lbl_table);
 249         ice_free(psr->hw, psr->ptype_mk_tcam_table);
 250         ice_free(psr->hw, psr->mk_grp_table);
 251
 252         ice_free(psr->hw, psr);
 253 }