-/* CRC32i support for Key0 hash */
-#define ucrc32(ch, crc) (crc32tbl[((crc) ^ (ch)) & 0xff] ^ ((crc) >> 8))
-#define crc32(x, y) crc32i(~0, x, y)
-
-static const uint32_t crc32tbl[] = { /* CRC polynomial 0xedb88320 */
-0x00000000, 0x77073096, 0xee0e612c, 0x990951ba,
-0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
-0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
-0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
-0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
-0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
-0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,
-0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
-0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
-0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
-0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940,
-0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
-0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116,
-0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
-0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
-0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
-0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a,
-0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
-0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818,
-0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
-0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
-0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
-0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c,
-0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
-0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
-0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
-0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
-0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
-0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086,
-0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
-0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4,
-0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
-0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
-0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
-0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
-0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
-0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe,
-0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
-0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
-0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
-0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252,
-0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
-0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60,
-0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
-0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
-0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
-0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04,
-0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
-0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a,
-0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
-0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
-0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
-0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e,
-0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
-0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
-0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
-0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
-0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
-0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0,
-0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
-0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6,
-0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
-0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
-0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
-};
-
-static uint32_t crc32i(uint32_t crc, const uint8_t *buf, size_t len)
-{
- int l;
-
- for (l = (len - 1); l >= 0; l--)
- crc = ucrc32(buf[l], crc);
-
- return ~crc;
-}
-
-static uint32_t tf_em_lkup_get_crc32_hash(struct tf_session *session,
- uint8_t *key,
- enum tf_dir dir)
-{
- int i;
- uint32_t index;
- uint32_t val1, val2;
- uint8_t temp[4];
- uint8_t *kptr = key;
-
- /* Do byte-wise XOR of the 52-byte HASH key first. */
- index = *key;
- kptr--;
-
- for (i = TF_HW_EM_KEY_MAX_SIZE - 2; i >= 0; i--) {
- index = index ^ *kptr;
- kptr--;
- }
-
- /* Get seeds */
- val1 = session->lkup_em_seed_mem[dir][index * 2];
- val2 = session->lkup_em_seed_mem[dir][index * 2 + 1];
-
- temp[3] = (uint8_t)(val1 >> 24);
- temp[2] = (uint8_t)(val1 >> 16);
- temp[1] = (uint8_t)(val1 >> 8);
- temp[0] = (uint8_t)(val1 & 0xff);
- val1 = 0;
-
- /* Start with seed */
- if (!(val2 & 0x1))
- val1 = crc32i(~val1, temp, 4);
-
- val1 = crc32i(~val1,
- (key - (TF_HW_EM_KEY_MAX_SIZE - 1)),
- TF_HW_EM_KEY_MAX_SIZE);
-
- /* End with seed */
- if (val2 & 0x1)
- val1 = crc32i(~val1, temp, 4);
-
- return val1;
-}
-
-static uint32_t tf_em_lkup_get_lookup3_hash(uint32_t lookup3_init_value,
- uint8_t *in_key)
-{
- uint32_t val1;
-
- val1 = hashword(((uint32_t *)in_key) + 1,
- TF_HW_EM_KEY_MAX_SIZE / (sizeof(uint32_t)),
- lookup3_init_value);
-
- return val1;
-}
-
-void *tf_em_get_table_page(struct tf_tbl_scope_cb *tbl_scope_cb,
- enum tf_dir dir,
- uint32_t offset,
- enum tf_em_table_type table_type)
-{
- int level = 0;
- int page = offset / TF_EM_PAGE_SIZE;
- void *addr = NULL;
- struct tf_em_ctx_mem_info *ctx = &tbl_scope_cb->em_ctx_info[dir];
-
- if (ctx == NULL)
- return NULL;
-
- if (dir != TF_DIR_RX && dir != TF_DIR_TX)
- return NULL;
-
- if (table_type < TF_KEY0_TABLE || table_type > TF_EFC_TABLE)
- return NULL;
-
- /*
- * Use the level according to the num_level of page table
- */
- level = ctx->em_tables[table_type].num_lvl - 1;
-
- addr = (void *)ctx->em_tables[table_type].pg_tbl[level].pg_va_tbl[page];
-
- return addr;
-}
-
-/** Read Key table entry
- *
- * Entry is read in to entry
- */
-static int tf_em_read_entry(struct tf_tbl_scope_cb *tbl_scope_cb,
- struct tf_eem_64b_entry *entry,
- uint32_t entry_size,
- uint32_t index,
- enum tf_em_table_type table_type,
- enum tf_dir dir)
-{
- void *page;
- uint32_t entry_offset = (index * entry_size) % TF_EM_PAGE_SIZE;
-
- page = tf_em_get_table_page(tbl_scope_cb,
- dir,
- (index * entry_size),
- table_type);
-
- if (page == NULL)
- return -EINVAL;
-
- memcpy((uint8_t *)entry, (uint8_t *)page + entry_offset, entry_size);
- return 0;
-}
-
-static int tf_em_write_entry(struct tf_tbl_scope_cb *tbl_scope_cb,
- struct tf_eem_64b_entry *entry,
- uint32_t entry_size,
- uint32_t index,
- enum tf_em_table_type table_type,
- enum tf_dir dir)
-{
- void *page;
- uint32_t entry_offset = (index * entry_size) % TF_EM_PAGE_SIZE;
-
- page = tf_em_get_table_page(tbl_scope_cb,
- dir,
- (index * entry_size),
- table_type);
-
- if (page == NULL)
- return -EINVAL;
-
- memcpy((uint8_t *)page + entry_offset, entry, entry_size);
-
- return 0;
-}
-
-static int tf_em_entry_exists(struct tf_tbl_scope_cb *tbl_scope_cb,
- struct tf_eem_64b_entry *entry,
- uint32_t index,
- enum tf_em_table_type table_type,
- enum tf_dir dir)
-{
- int rc;
- struct tf_eem_64b_entry table_entry;
-
- rc = tf_em_read_entry(tbl_scope_cb,
- &table_entry,
- TF_EM_KEY_RECORD_SIZE,
- index,
- table_type,
- dir);
-
- if (rc != 0)
- return -EINVAL;
-
- if (table_entry.hdr.word1 & (1 << TF_LKUP_RECORD_VALID_SHIFT)) {
- if (entry != NULL) {
- if (memcmp(&table_entry,
- entry,
- TF_EM_KEY_RECORD_SIZE) == 0)
- return -EEXIST;
- } else {
- return -EEXIST;
- }
-
- return -EBUSY;
- }
-
- return 0;
-}
-
-static void tf_em_create_key_entry(struct tf_eem_entry_hdr *result,
- uint8_t *in_key,
- struct tf_eem_64b_entry *key_entry)