CAST6_PARALLEL_BLOCKS
ECB_WALK_START(req, CAST6_BLOCK_SIZE, CAST6_PARALLEL_BLOCKS);
ECB_BLOCK(CAST6_PARALLEL_BLOCKS, cast6_ecb_enc_8way);
ECB_WALK_START(req, CAST6_BLOCK_SIZE, CAST6_PARALLEL_BLOCKS);
ECB_BLOCK(CAST6_PARALLEL_BLOCKS, cast6_ecb_dec_8way);
CBC_WALK_START(req, CAST6_BLOCK_SIZE, CAST6_PARALLEL_BLOCKS);
CBC_DEC_BLOCK(CAST6_PARALLEL_BLOCKS, cast6_cbc_dec_8way);