/* * 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 #include #include #include #include #include #include #include #include "octeon-crypto.h" /* * We pass everything as 64-bit. OCTEON can handle misaligned data. */ static void octeon_md5_store_hash(struct md5_state *ctx) { u64 *hash = (u64 *)ctx->hash; write_octeon_64bit_hash_dword(hash[0], 0); write_octeon_64bit_hash_dword(hash[1], 1); } static void octeon_md5_read_hash(struct md5_state *ctx) { u64 *hash = (u64 *)ctx->hash; hash[0] = read_octeon_64bit_hash_dword(0); hash[1] = read_octeon_64bit_hash_dword(1); } static void octeon_md5_transform(const void *_block) { const u64 *block = _block; 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]); } static int octeon_md5_init(struct shash_desc *desc) { struct md5_state *mctx = shash_desc_ctx(desc); mctx->hash[0] = cpu_to_le32(MD5_H0); mctx->hash[1] = cpu_to_le32(MD5_H1); mctx->hash[2] = cpu_to_le32(MD5_H2); mctx->hash[3] = cpu_to_le32(MD5_H3); mctx->byte_count = 0; return 0; } static int octeon_md5_update(struct shash_desc *desc, const u8 *data, unsigned int len) { struct md5_state *mctx = shash_desc_ctx(desc); const u32 avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f); struct octeon_cop2_state state; unsigned long flags; mctx->byte_count += len; if (avail > len) { memcpy((char *)mctx->block + (sizeof(mctx->block) - avail), data, len); return 0; } memcpy((char *)mctx->block + (sizeof(mctx->block) - avail), data, avail); flags = octeon_crypto_enable(&state); octeon_md5_store_hash(mctx); octeon_md5_transform(mctx->block); data += avail; len -= avail; while (len >= sizeof(mctx->block)) { octeon_md5_transform(data); data += sizeof(mctx->block); len -= sizeof(mctx->block); } octeon_md5_read_hash(mctx); octeon_crypto_disable(&state, flags); memcpy(mctx->block, data, len); return 0; } static int octeon_md5_final(struct shash_desc *desc, u8 *out) { struct md5_state *mctx = shash_desc_ctx(desc); const unsigned int offset = mctx->byte_count & 0x3f; char *p = (char *)mctx->block + offset; int padding = 56 - (offset + 1); struct octeon_cop2_state state; unsigned long flags; *p++ = 0x80; flags = octeon_crypto_enable(&state); octeon_md5_store_hash(mctx); if (padding < 0) { memset(p, 0x00, padding + sizeof(u64)); octeon_md5_transform(mctx->block); p = (char *)mctx->block; padding = 56; } memset(p, 0, padding); mctx->block[14] = cpu_to_le32(mctx->byte_count << 3); mctx->block[15] = cpu_to_le32(mctx->byte_count >> 29); octeon_md5_transform(mctx->block); octeon_md5_read_hash(mctx); octeon_crypto_disable(&state, flags); memcpy(out, mctx->hash, sizeof(mctx->hash)); memset(mctx, 0, sizeof(*mctx)); return 0; } static int octeon_md5_export(struct shash_desc *desc, void *out) { struct md5_state *ctx = shash_desc_ctx(desc); memcpy(out, ctx, sizeof(*ctx)); return 0; } static int octeon_md5_import(struct shash_desc *desc, const void *in) { struct md5_state *ctx = shash_desc_ctx(desc); memcpy(ctx, in, sizeof(*ctx)); return 0; } static struct shash_alg alg = { .digestsize = MD5_DIGEST_SIZE, .init = octeon_md5_init, .update = octeon_md5_update, .final = octeon_md5_final, .export = octeon_md5_export, .import = octeon_md5_import, .descsize = sizeof(struct md5_state), .statesize = sizeof(struct md5_state), .base = { .cra_name = "md5", .cra_driver_name= "octeon-md5", .cra_priority = OCTEON_CR_OPCODE_PRIORITY, .cra_flags = CRYPTO_ALG_TYPE_SHASH, .cra_blocksize = MD5_HMAC_BLOCK_SIZE, .cra_module = THIS_MODULE, } }; static int __init md5_mod_init(void) { if (!octeon_has_crypto()) return -ENOTSUPP; return crypto_register_shash(&alg); } static void __exit md5_mod_fini(void) { crypto_unregister_shash(&alg); } module_init(md5_mod_init); module_exit(md5_mod_fini); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("MD5 Message Digest Algorithm (OCTEON)"); MODULE_AUTHOR("Aaro Koskinen "); 92d8f040b8d8db0b86d42806e0c417f7ccf (patch) tree5b06e952af482d45f3ade64e77824662e34b7fa2 /arch/openrisc/lib/string.S parent370ebb0ef6255132373ed35d13e7b1d8d2eb7003 (diff)
usbnet: pegasus: Use net_device_stats from struct net_devicends-private-remove
Instead of using a private copy of struct net_device_stats in struct pegasus, use stats from struct net_device. Also remove the now unnecessary .ndo_get_stats function. Cc: Petko Manolov <petkan@nucleusys.com> Cc: linux-usb@vger.kernel.org Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Diffstat (limited to 'arch/openrisc/lib/string.S')