/* * Cryptographic API. * * MD5 Message Digest Algorithm (RFC1321). * * Adapted for OCTEON by Aaro Koskinen . * * Based on crypto/md5.c, which is: * * Derived from cryptoapi implementation, originally based on the * public domain implementation written by Colin Plumb in 1993. * * Copyright (c) Cryptoapi developers. * Copyright (c) 2002 James Morris * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at your option) * any later version. */ #include #include /* * We pass everything as 64-bit. OCTEON can handle misaligned data. */ static void md5_blocks(struct md5_block_state *state, const u8 *data, size_t nblocks) { struct octeon_cop2_state cop2_state; u64 *state64 = (u64 *)state; unsigned long flags; if (!octeon_has_crypto()) return md5_blocks_generic(state, data, nblocks); cpu_to_le32_array(state->h, ARRAY_SIZE(state->h)); flags = octeon_crypto_enable(&cop2_state); write_octeon_64bit_hash_dword(state64[0], 0); write_octeon_64bit_hash_dword(state64[1], 1); do { const u64 *block = (const u64 *)data; write_octeon_64bit_block_dword(block[0], 0); write_octeon_64bit_block_dword(block[1], 1); write_octeon_64bit_block_dword(block[2], 2); write_octeon_64bit_block_dword(block[3], 3); write_octeon_64bit_block_dword(block[4], 4); write_octeon_64bit_block_dword(block[5], 5); write_octeon_64bit_block_dword(block[6], 6); octeon_md5_start(block[7]); data += MD5_BLOCK_SIZE; } while (--nblocks); state64[0] = read_octeon_64bit_hash_dword(0); state64[1] = read_octeon_64bit_hash_dword(1); octeon_crypto_disable(&cop2_state, flags); le32_to_cpu_array(state->h, ARRAY_SIZE(state->h)); }