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[CRYPTO] tcrypt: Shrink speed templates

Browse source 
The speed templates as it look always the same. The key size
is repeated for each block size and we test always the same
block size. The addition of one inner loop makes it possible
to get rid of the struct and it is possible to use a tiny
u8 array :)

Signed-off-by: Sebastian Siewior <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
This commit is contained in:
Sebastian Siewior 2008-03-11 21:27:11 +08:00 • committed by Herbert Xu
commit d5dc392742
2 changed files with 57 additions and 161 deletions
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95
crypto/tcrypt.c
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@ -721,15 +721,18 @@ out:
return ret;
}
static u32 block_sizes[] = { 16, 64, 256, 1024, 8192, 0 };
static void test_cipher_speed(char *algo, int enc, unsigned int sec,
struct cipher_testvec *template,
unsigned int tcount, struct cipher_speed *speed)
unsigned int tcount, u8 *keysize)
{
unsigned int ret, i, j, iv_len;
unsigned char *key, *p, iv[128];
struct crypto_blkcipher *tfm;
struct blkcipher_desc desc;
const char *e;
u32 *b_size;
if (enc == ENCRYPT)
e = "encryption";
@ -748,52 +751,60 @@ static void test_cipher_speed(char *algo, int enc, unsigned int sec,
desc.tfm = tfm;
desc.flags = 0;
for (i = 0; speed[i].klen != 0; i++) {
if ((speed[i].blen + speed[i].klen) > TVMEMSIZE) {
printk("template (%u) too big for tvmem (%u)\n",
speed[i].blen + speed[i].klen, TVMEMSIZE);
goto out;
}
i = 0;
do {
printk("test %u (%d bit key, %d byte blocks): ", i,
speed[i].klen * 8, speed[i].blen);
b_size = block_sizes;
do {
memset(tvmem, 0xff, speed[i].klen + speed[i].blen);
if ((*keysize + *b_size) > TVMEMSIZE) {
printk("template (%u) too big for tvmem (%u)\n",
*keysize + *b_size, TVMEMSIZE);
goto out;
}
/* set key, plain text and IV */
key = (unsigned char *)tvmem;
for (j = 0; j < tcount; j++) {
if (template[j].klen == speed[i].klen) {
key = template[j].key;
printk("test %u (%d bit key, %d byte blocks): ", i,
*keysize * 8, *b_size);
memset(tvmem, 0xff, *keysize + *b_size);
/* set key, plain text and IV */
key = (unsigned char *)tvmem;
for (j = 0; j < tcount; j++) {
if (template[j].klen == *keysize) {
key = template[j].key;
break;
}
}
p = (unsigned char *)tvmem + *keysize;
ret = crypto_blkcipher_setkey(tfm, key, *keysize);
if (ret) {
printk("setkey() failed flags=%x\n",
crypto_blkcipher_get_flags(tfm));
goto out;
}
iv_len = crypto_blkcipher_ivsize(tfm);
if (iv_len) {
memset(&iv, 0xff, iv_len);
crypto_blkcipher_set_iv(tfm, iv, iv_len);
}
if (sec)
ret = test_cipher_jiffies(&desc, enc, p, *b_size, sec);
else
ret = test_cipher_cycles(&desc, enc, p, *b_size);
if (ret) {
printk("%s() failed flags=%x\n", e, desc.flags);
break;
}
}
p = (unsigned char *)tvmem + speed[i].klen;
ret = crypto_blkcipher_setkey(tfm, key, speed[i].klen);
if (ret) {
printk("setkey() failed flags=%x\n",
crypto_blkcipher_get_flags(tfm));
goto out;
}
iv_len = crypto_blkcipher_ivsize(tfm);
if (iv_len) {
memset(&iv, 0xff, iv_len);
crypto_blkcipher_set_iv(tfm, iv, iv_len);
}
if (sec)
ret = test_cipher_jiffies(&desc, enc, p, speed[i].blen,
sec);
else
ret = test_cipher_cycles(&desc, enc, p, speed[i].blen);
if (ret) {
printk("%s() failed flags=%x\n", e, desc.flags);
break;
}
}
b_size++;
i++;
} while (*b_size);
keysize++;
} while (*keysize);
out:
crypto_free_blkcipher(tfm);