ceph/src/isa-l/igzip/igzip_level_buf_structs.h

   1 #ifndef IGZIP_LEVEL_BUF_STRUCTS_H
   2 #define IGZIP_LEVEL_BUF_STRUCTS_H
   3
   4 #include "igzip_lib.h"
   5 #include "huff_codes.h"
   6 #include "encode_df.h"
   7
   8 #define MATCH_BUF_SIZE (4 * 1024)
   9
  10 struct hash8k_buf {
  11         uint16_t hash_table[IGZIP_HASH8K_HASH_SIZE];
  12 };
  13
  14 struct hash_hist_buf {
  15         uint16_t hash_table[IGZIP_HASH_HIST_SIZE];
  16 };
  17
  18 struct hash_map_buf {
  19         uint16_t hash_table[IGZIP_HASH_MAP_HASH_SIZE];
  20         struct deflate_icf *matches_next;
  21         struct deflate_icf *matches_end;
  22         struct deflate_icf matches[MATCH_BUF_SIZE];
  23         struct deflate_icf overflow[ISAL_LOOK_AHEAD];
  24 };
  25
  26 #define MAX_LVL_BUF_SIZE sizeof(struct hash_map_buf)
  27
  28 struct level_buf {
  29         struct hufftables_icf encode_tables;
  30         struct isal_mod_hist hist;
  31         uint32_t deflate_hdr_count;
  32         uint32_t deflate_hdr_extra_bits;
  33         uint8_t deflate_hdr[ISAL_DEF_MAX_HDR_SIZE];
  34         struct deflate_icf *icf_buf_next;
  35         uint64_t icf_buf_avail_out;
  36         struct deflate_icf *icf_buf_start;
  37         union {
  38                 struct hash8k_buf hash8k;
  39                 struct hash_hist_buf hash_hist;
  40                 struct hash_map_buf hash_map;
  41
  42                 struct hash8k_buf lvl1;
  43                 struct hash_hist_buf lvl2;
  44                 struct hash_map_buf lvl3;
  45         };
  46 };
  47
  48 #endif