drivers/net/ice/base/ice_ptype_mk.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_PTYPE_MK_TCAM_TABLE_SIZE 1024
   9
  10 /**
  11  * ice_ptype_mk_tcam_dump - dump an ptype marker tcam info_
  12  * @ice_hw: pointer to the hardware structure
  13  * @item: ptype marker tcam to dump
  14  */
  15 void ice_ptype_mk_tcam_dump(struct ice_hw *hw,
  16                             struct ice_ptype_mk_tcam_item *item)
  17 {
  18         int i;
  19
  20         ice_info(hw, "address = %d\n", item->address);
  21         ice_info(hw, "ptype = %d\n", item->ptype);
  22         ice_info(hw, "key    :");
  23         for (i = 0; i < 10; i++)
  24                 ice_info(hw, "%02x ", item->key[i]);
  25         ice_info(hw, "\n");
  26         ice_info(hw, "key_inv:");
  27         for (i = 0; i < 10; i++)
  28                 ice_info(hw, "%02x ", item->key_inv[i]);
  29         ice_info(hw, "\n");
  30 }
  31
  32 static void _parse_ptype_mk_tcam_item(struct ice_hw *hw, u16 idx, void *item,
  33                                       void *data, int size)
  34 {
  35         ice_parse_item_dflt(hw, idx, item, data, size);
  36
  37         if (hw->debug_mask & ICE_DBG_PARSER)
  38                 ice_ptype_mk_tcam_dump(hw,
  39                                        (struct ice_ptype_mk_tcam_item *)item);
  40 }
  41
  42 /**
  43  * ice_ptype_mk_tcam_table_get - create a ptype marker tcam table
  44  * @ice_hw: pointer to the hardware structure
  45  */
  46 struct ice_ptype_mk_tcam_item *ice_ptype_mk_tcam_table_get(struct ice_hw *hw)
  47 {
  48         return (struct ice_ptype_mk_tcam_item *)
  49                 ice_parser_create_table(hw, ICE_SID_RXPARSER_MARKER_PTYPE,
  50                                         sizeof(struct ice_ptype_mk_tcam_item),
  51                                         ICE_PTYPE_MK_TCAM_TABLE_SIZE,
  52                                         ice_parser_sect_item_get,
  53                                         _parse_ptype_mk_tcam_item, true);
  54 }
  55
  56 /**
  57  * ice_ptype_mk_tcam_match - match a pattern on a ptype marker tcam table
  58  * @table: ptype marker tcam table to search
  59  * @pat: pattern to match
  60  * @len: length of the pattern
  61  */
  62 struct ice_ptype_mk_tcam_item *
  63 ice_ptype_mk_tcam_match(struct ice_ptype_mk_tcam_item *table,
  64                         u8 *pat, int len)
  65 {
  66         int i;
  67
  68         for (i = 0; i < ICE_PTYPE_MK_TCAM_TABLE_SIZE; i++) {
  69                 struct ice_ptype_mk_tcam_item *item = &table[i];
  70
  71                 if (ice_ternary_match(item->key, item->key_inv, pat, len))
  72                         return item;
  73         }
  74
  75         return NULL;
  76 }