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tcrypt.c
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Quick & dirty crypto testing module.
*
* This will only exist until we have a better testing mechanism
* (e.g. a char device).
*
* Copyright (c) 2002 James Morris <[email protected]>
* Copyright (c) 2002 Jean-Francois Dive <[email protected]>
* Copyright (c) 2007 Nokia Siemens Networks
*
* Updated RFC4106 AES-GCM testing.
* Authors: Aidan O'Mahony ([email protected])
* Adrian Hoban <[email protected]>
* Gabriele Paoloni <[email protected]>
* Tadeusz Struk ([email protected])
* Copyright (c) 2010, Intel Corporation.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <crypto/aead.h>
#include <crypto/hash.h>
#include <crypto/skcipher.h>
#include <linux/err.h>
#include <linux/fips.h>
#include <linux/init.h>
#include <linux/gfp.h>
#include <linux/module.h>
#include <linux/scatterlist.h>
#include <linux/string.h>
#include <linux/moduleparam.h>
#include <linux/jiffies.h>
#include <linux/timex.h>
#include <linux/interrupt.h>
#include "tcrypt.h"
/*
* Need slab memory for testing (size in number of pages).
*/
#define TVMEMSIZE 4
/*
* Used by test_cipher_speed()
*/
#define ENCRYPT 1
#define DECRYPT 0
#define MAX_DIGEST_SIZE 64
/*
* return a string with the driver name
*/
#define get_driver_name(tfm_type, tfm) crypto_tfm_alg_driver_name(tfm_type ## _tfm(tfm))
/*
* Used by test_cipher_speed()
*/
static unsigned int sec;
static char *alg = NULL;
static u32 type;
static u32 mask;
static int mode;
static u32 num_mb = 8;
static unsigned int klen;
static char *tvmem[TVMEMSIZE];
static const char *check[] = {
"des", "md5", "des3_ede", "rot13", "sha1", "sha224", "sha256", "sm3",
"blowfish", "twofish", "serpent", "sha384", "sha512", "md4", "aes",
"cast6", "arc4", "michael_mic", "deflate", "crc32c", "tea", "xtea",
"khazad", "wp512", "wp384", "wp256", "xeta", "fcrypt",
"camellia", "seed", "rmd160",
"lzo", "lzo-rle", "cts", "sha3-224", "sha3-256", "sha3-384",
"sha3-512", "streebog256", "streebog512",
NULL
};
static const int block_sizes[] = { 16, 64, 256, 1024, 1420, 4096, 0 };
static const int aead_sizes[] = { 16, 64, 256, 512, 1024, 1420, 4096, 8192, 0 };
#define XBUFSIZE 8
#define MAX_IVLEN 32
static int testmgr_alloc_buf(char *buf[XBUFSIZE])
{
int i;
for (i = 0; i < XBUFSIZE; i++) {
buf[i] = (void *)__get_free_page(GFP_KERNEL);
if (!buf[i])
goto err_free_buf;
}
return 0;
err_free_buf:
while (i-- > 0)
free_page((unsigned long)buf[i]);
return -ENOMEM;
}
static void testmgr_free_buf(char *buf[XBUFSIZE])
{
int i;
for (i = 0; i < XBUFSIZE; i++)
free_page((unsigned long)buf[i]);
}
static void sg_init_aead(struct scatterlist *sg, char *xbuf[XBUFSIZE],
unsigned int buflen, const void *assoc,
unsigned int aad_size)
{
int np = (buflen + PAGE_SIZE - 1)/PAGE_SIZE;
int k, rem;
if (np > XBUFSIZE) {
rem = PAGE_SIZE;
np = XBUFSIZE;
} else {
rem = buflen % PAGE_SIZE;
}
sg_init_table(sg, np + 1);
sg_set_buf(&sg[0], assoc, aad_size);
if (rem)
np--;
for (k = 0; k < np; k++)
sg_set_buf(&sg[k + 1], xbuf[k], PAGE_SIZE);
if (rem)
sg_set_buf(&sg[k + 1], xbuf[k], rem);
}
static inline int do_one_aead_op(struct aead_request *req, int ret)
{
struct crypto_wait *wait = req->base.data;
return crypto_wait_req(ret, wait);
}
struct test_mb_aead_data {
struct scatterlist sg[XBUFSIZE];
struct scatterlist sgout[XBUFSIZE];
struct aead_request *req;
struct crypto_wait wait;
char *xbuf[XBUFSIZE];
char *xoutbuf[XBUFSIZE];
char *axbuf[XBUFSIZE];
};
static int do_mult_aead_op(struct test_mb_aead_data *data, int enc,
u32 num_mb, int *rc)
{
int i, err = 0;
/* Fire up a bunch of concurrent requests */
for (i = 0; i < num_mb; i++) {
if (enc == ENCRYPT)
rc[i] = crypto_aead_encrypt(data[i].req);
else
rc[i] = crypto_aead_decrypt(data[i].req);
}
/* Wait for all requests to finish */
for (i = 0; i < num_mb; i++) {
rc[i] = crypto_wait_req(rc[i], &data[i].wait);
if (rc[i]) {
pr_info("concurrent request %d error %d\n", i, rc[i]);
err = rc[i];
}
}
return err;
}
static int test_mb_aead_jiffies(struct test_mb_aead_data *data, int enc,
int blen, int secs, u32 num_mb)
{
unsigned long start, end;
int bcount;
int ret = 0;
int *rc;
rc = kcalloc(num_mb, sizeof(*rc), GFP_KERNEL);
if (!rc)
return -ENOMEM;
for (start = jiffies, end = start + secs * HZ, bcount = 0;
time_before(jiffies, end); bcount++) {
ret = do_mult_aead_op(data, enc, num_mb, rc);
if (ret)
goto out;
}
pr_cont("%d operations in %d seconds (%llu bytes)\n",
bcount * num_mb, secs, (u64)bcount * blen * num_mb);
out:
kfree(rc);
return ret;
}
static int test_mb_aead_cycles(struct test_mb_aead_data *data, int enc,
int blen, u32 num_mb)
{
unsigned long cycles = 0;
int ret = 0;
int i;
int *rc;
rc = kcalloc(num_mb, sizeof(*rc), GFP_KERNEL);
if (!rc)
return -ENOMEM;
/* Warm-up run. */
for (i = 0; i < 4; i++) {
ret = do_mult_aead_op(data, enc, num_mb, rc);
if (ret)
goto out;
}
/* The real thing. */
for (i = 0; i < 8; i++) {
cycles_t start, end;
start = get_cycles();
ret = do_mult_aead_op(data, enc, num_mb, rc);
end = get_cycles();
if (ret)
goto out;
cycles += end - start;
}
pr_cont("1 operation in %lu cycles (%d bytes)\n",
(cycles + 4) / (8 * num_mb), blen);
out:
kfree(rc);
return ret;
}
static void test_mb_aead_speed(const char *algo, int enc, int secs,
struct aead_speed_template *template,
unsigned int tcount, u8 authsize,
unsigned int aad_size, u8 *keysize, u32 num_mb)
{
struct test_mb_aead_data *data;
struct crypto_aead *tfm;
unsigned int i, j, iv_len;
const int *b_size;
const char *key;
const char *e;
void *assoc;
char *iv;
int ret;
if (aad_size >= PAGE_SIZE) {
pr_err("associate data length (%u) too big\n", aad_size);
return;
}
iv = kzalloc(MAX_IVLEN, GFP_KERNEL);
if (!iv)
return;
if (enc == ENCRYPT)
e = "encryption";
else
e = "decryption";
data = kcalloc(num_mb, sizeof(*data), GFP_KERNEL);
if (!data)
goto out_free_iv;
tfm = crypto_alloc_aead(algo, 0, 0);
if (IS_ERR(tfm)) {
pr_err("failed to load transform for %s: %ld\n",
algo, PTR_ERR(tfm));
goto out_free_data;
}
ret = crypto_aead_setauthsize(tfm, authsize);
for (i = 0; i < num_mb; ++i)
if (testmgr_alloc_buf(data[i].xbuf)) {
while (i--)
testmgr_free_buf(data[i].xbuf);
goto out_free_tfm;
}
for (i = 0; i < num_mb; ++i)
if (testmgr_alloc_buf(data[i].axbuf)) {
while (i--)
testmgr_free_buf(data[i].axbuf);
goto out_free_xbuf;
}
for (i = 0; i < num_mb; ++i)
if (testmgr_alloc_buf(data[i].xoutbuf)) {
while (i--)
testmgr_free_buf(data[i].xoutbuf);
goto out_free_axbuf;
}
for (i = 0; i < num_mb; ++i) {
data[i].req = aead_request_alloc(tfm, GFP_KERNEL);
if (!data[i].req) {
pr_err("alg: skcipher: Failed to allocate request for %s\n",
algo);
while (i--)
aead_request_free(data[i].req);
goto out_free_xoutbuf;
}
}
for (i = 0; i < num_mb; ++i) {
crypto_init_wait(&data[i].wait);
aead_request_set_callback(data[i].req,
CRYPTO_TFM_REQ_MAY_BACKLOG,
crypto_req_done, &data[i].wait);
}
pr_info("\ntesting speed of multibuffer %s (%s) %s\n", algo,
get_driver_name(crypto_aead, tfm), e);
i = 0;
do {
b_size = aead_sizes;
do {
int bs = round_up(*b_size, crypto_aead_blocksize(tfm));
if (bs + authsize > XBUFSIZE * PAGE_SIZE) {
pr_err("template (%u) too big for buffer (%lu)\n",
authsize + bs,
XBUFSIZE * PAGE_SIZE);
goto out;
}
pr_info("test %u (%d bit key, %d byte blocks): ", i,
*keysize * 8, bs);
/* Set up tfm global state, i.e. the key */
memset(tvmem[0], 0xff, PAGE_SIZE);
key = tvmem[0];
for (j = 0; j < tcount; j++) {
if (template[j].klen == *keysize) {
key = template[j].key;
break;
}
}
crypto_aead_clear_flags(tfm, ~0);
ret = crypto_aead_setkey(tfm, key, *keysize);
if (ret) {
pr_err("setkey() failed flags=%x\n",
crypto_aead_get_flags(tfm));
goto out;
}
iv_len = crypto_aead_ivsize(tfm);
if (iv_len)
memset(iv, 0xff, iv_len);
/* Now setup per request stuff, i.e. buffers */
for (j = 0; j < num_mb; ++j) {
struct test_mb_aead_data *cur = &data[j];
assoc = cur->axbuf[0];
memset(assoc, 0xff, aad_size);
sg_init_aead(cur->sg, cur->xbuf,
bs + (enc ? 0 : authsize),
assoc, aad_size);
sg_init_aead(cur->sgout, cur->xoutbuf,
bs + (enc ? authsize : 0),
assoc, aad_size);
aead_request_set_ad(cur->req, aad_size);
if (!enc) {
aead_request_set_crypt(cur->req,
cur->sgout,
cur->sg,
bs, iv);
ret = crypto_aead_encrypt(cur->req);
ret = do_one_aead_op(cur->req, ret);
if (ret) {
pr_err("calculating auth failed (%d)\n",
ret);
break;
}
}
aead_request_set_crypt(cur->req, cur->sg,
cur->sgout, bs +
(enc ? 0 : authsize),
iv);
}
if (secs) {
ret = test_mb_aead_jiffies(data, enc, bs,
secs, num_mb);
cond_resched();
} else {
ret = test_mb_aead_cycles(data, enc, bs,
num_mb);
}
if (ret) {
pr_err("%s() failed return code=%d\n", e, ret);
break;
}
b_size++;
i++;
} while (*b_size);
keysize++;
} while (*keysize);
out:
for (i = 0; i < num_mb; ++i)
aead_request_free(data[i].req);
out_free_xoutbuf:
for (i = 0; i < num_mb; ++i)
testmgr_free_buf(data[i].xoutbuf);
out_free_axbuf:
for (i = 0; i < num_mb; ++i)
testmgr_free_buf(data[i].axbuf);
out_free_xbuf:
for (i = 0; i < num_mb; ++i)
testmgr_free_buf(data[i].xbuf);
out_free_tfm:
crypto_free_aead(tfm);
out_free_data:
kfree(data);
out_free_iv:
kfree(iv);
}
static int test_aead_jiffies(struct aead_request *req, int enc,
int blen, int secs)
{
unsigned long start, end;
int bcount;
int ret;
for (start = jiffies, end = start + secs * HZ, bcount = 0;
time_before(jiffies, end); bcount++) {
if (enc)
ret = do_one_aead_op(req, crypto_aead_encrypt(req));
else
ret = do_one_aead_op(req, crypto_aead_decrypt(req));
if (ret)
return ret;
}
pr_cont("%d operations in %d seconds (%llu bytes)\n",
bcount, secs, (u64)bcount * blen);
return 0;
}
static int test_aead_cycles(struct aead_request *req, int enc, int blen)
{
unsigned long cycles = 0;
int ret = 0;
int i;
/* Warm-up run. */
for (i = 0; i < 4; i++) {
if (enc)
ret = do_one_aead_op(req, crypto_aead_encrypt(req));
else
ret = do_one_aead_op(req, crypto_aead_decrypt(req));
if (ret)
goto out;
}
/* The real thing. */
for (i = 0; i < 8; i++) {
cycles_t start, end;
start = get_cycles();
if (enc)
ret = do_one_aead_op(req, crypto_aead_encrypt(req));
else
ret = do_one_aead_op(req, crypto_aead_decrypt(req));
end = get_cycles();
if (ret)
goto out;
cycles += end - start;
}
out:
if (ret == 0)
printk("1 operation in %lu cycles (%d bytes)\n",
(cycles + 4) / 8, blen);
return ret;
}
static void test_aead_speed(const char *algo, int enc, unsigned int secs,
struct aead_speed_template *template,
unsigned int tcount, u8 authsize,
unsigned int aad_size, u8 *keysize)
{
unsigned int i, j;
struct crypto_aead *tfm;
int ret = -ENOMEM;
const char *key;
struct aead_request *req;
struct scatterlist *sg;
struct scatterlist *sgout;
const char *e;
void *assoc;
char *iv;
char *xbuf[XBUFSIZE];
char *xoutbuf[XBUFSIZE];
char *axbuf[XBUFSIZE];
const int *b_size;
unsigned int iv_len;
struct crypto_wait wait;
iv = kzalloc(MAX_IVLEN, GFP_KERNEL);
if (!iv)
return;
if (aad_size >= PAGE_SIZE) {
pr_err("associate data length (%u) too big\n", aad_size);
goto out_noxbuf;
}
if (enc == ENCRYPT)
e = "encryption";
else
e = "decryption";
if (testmgr_alloc_buf(xbuf))
goto out_noxbuf;
if (testmgr_alloc_buf(axbuf))
goto out_noaxbuf;
if (testmgr_alloc_buf(xoutbuf))
goto out_nooutbuf;
sg = kmalloc(sizeof(*sg) * 9 * 2, GFP_KERNEL);
if (!sg)
goto out_nosg;
sgout = &sg[9];
tfm = crypto_alloc_aead(algo, 0, 0);
if (IS_ERR(tfm)) {
pr_err("alg: aead: Failed to load transform for %s: %ld\n", algo,
PTR_ERR(tfm));
goto out_notfm;
}
crypto_init_wait(&wait);
printk(KERN_INFO "\ntesting speed of %s (%s) %s\n", algo,
get_driver_name(crypto_aead, tfm), e);
req = aead_request_alloc(tfm, GFP_KERNEL);
if (!req) {
pr_err("alg: aead: Failed to allocate request for %s\n",
algo);
goto out_noreq;
}
aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
crypto_req_done, &wait);
i = 0;
do {
b_size = aead_sizes;
do {
u32 bs = round_up(*b_size, crypto_aead_blocksize(tfm));
assoc = axbuf[0];
memset(assoc, 0xff, aad_size);
if ((*keysize + bs) > TVMEMSIZE * PAGE_SIZE) {
pr_err("template (%u) too big for tvmem (%lu)\n",
*keysize + bs,
TVMEMSIZE * PAGE_SIZE);
goto out;
}
key = tvmem[0];
for (j = 0; j < tcount; j++) {
if (template[j].klen == *keysize) {
key = template[j].key;
break;
}
}
ret = crypto_aead_setkey(tfm, key, *keysize);
ret = crypto_aead_setauthsize(tfm, authsize);
iv_len = crypto_aead_ivsize(tfm);
if (iv_len)
memset(iv, 0xff, iv_len);
crypto_aead_clear_flags(tfm, ~0);
printk(KERN_INFO "test %u (%d bit key, %d byte blocks): ",
i, *keysize * 8, bs);
memset(tvmem[0], 0xff, PAGE_SIZE);
if (ret) {
pr_err("setkey() failed flags=%x\n",
crypto_aead_get_flags(tfm));
goto out;
}
sg_init_aead(sg, xbuf, bs + (enc ? 0 : authsize),
assoc, aad_size);
sg_init_aead(sgout, xoutbuf,
bs + (enc ? authsize : 0), assoc,
aad_size);
aead_request_set_ad(req, aad_size);
if (!enc) {
/*
* For decryption we need a proper auth so
* we do the encryption path once with buffers
* reversed (input <-> output) to calculate it
*/
aead_request_set_crypt(req, sgout, sg,
bs, iv);
ret = do_one_aead_op(req,
crypto_aead_encrypt(req));
if (ret) {
pr_err("calculating auth failed (%d)\n",
ret);
break;
}
}
aead_request_set_crypt(req, sg, sgout,
bs + (enc ? 0 : authsize),
iv);
if (secs) {
ret = test_aead_jiffies(req, enc, bs,
secs);
cond_resched();
} else {
ret = test_aead_cycles(req, enc, bs);
}
if (ret) {
pr_err("%s() failed return code=%d\n", e, ret);
break;
}
b_size++;
i++;
} while (*b_size);
keysize++;
} while (*keysize);
out:
aead_request_free(req);
out_noreq:
crypto_free_aead(tfm);
out_notfm:
kfree(sg);
out_nosg:
testmgr_free_buf(xoutbuf);
out_nooutbuf:
testmgr_free_buf(axbuf);
out_noaxbuf:
testmgr_free_buf(xbuf);
out_noxbuf:
kfree(iv);
}
static void test_hash_sg_init(struct scatterlist *sg)
{
int i;
sg_init_table(sg, TVMEMSIZE);
for (i = 0; i < TVMEMSIZE; i++) {
sg_set_buf(sg + i, tvmem[i], PAGE_SIZE);
memset(tvmem[i], 0xff, PAGE_SIZE);
}
}
static inline int do_one_ahash_op(struct ahash_request *req, int ret)
{
struct crypto_wait *wait = req->base.data;
return crypto_wait_req(ret, wait);
}
struct test_mb_ahash_data {
struct scatterlist sg[XBUFSIZE];
char result[64];
struct ahash_request *req;
struct crypto_wait wait;
char *xbuf[XBUFSIZE];
};
static inline int do_mult_ahash_op(struct test_mb_ahash_data *data, u32 num_mb,
int *rc)
{
int i, err = 0;
/* Fire up a bunch of concurrent requests */
for (i = 0; i < num_mb; i++)
rc[i] = crypto_ahash_digest(data[i].req);
/* Wait for all requests to finish */
for (i = 0; i < num_mb; i++) {
rc[i] = crypto_wait_req(rc[i], &data[i].wait);
if (rc[i]) {
pr_info("concurrent request %d error %d\n", i, rc[i]);
err = rc[i];
}
}
return err;
}
static int test_mb_ahash_jiffies(struct test_mb_ahash_data *data, int blen,
int secs, u32 num_mb)
{
unsigned long start, end;
int bcount;
int ret = 0;
int *rc;
rc = kcalloc(num_mb, sizeof(*rc), GFP_KERNEL);
if (!rc)
return -ENOMEM;
for (start = jiffies, end = start + secs * HZ, bcount = 0;
time_before(jiffies, end); bcount++) {
ret = do_mult_ahash_op(data, num_mb, rc);
if (ret)
goto out;
}
pr_cont("%d operations in %d seconds (%llu bytes)\n",
bcount * num_mb, secs, (u64)bcount * blen * num_mb);
out:
kfree(rc);
return ret;
}
static int test_mb_ahash_cycles(struct test_mb_ahash_data *data, int blen,
u32 num_mb)
{
unsigned long cycles = 0;
int ret = 0;
int i;
int *rc;
rc = kcalloc(num_mb, sizeof(*rc), GFP_KERNEL);
if (!rc)
return -ENOMEM;
/* Warm-up run. */
for (i = 0; i < 4; i++) {
ret = do_mult_ahash_op(data, num_mb, rc);
if (ret)
goto out;
}
/* The real thing. */
for (i = 0; i < 8; i++) {
cycles_t start, end;
start = get_cycles();
ret = do_mult_ahash_op(data, num_mb, rc);
end = get_cycles();
if (ret)
goto out;
cycles += end - start;
}
pr_cont("1 operation in %lu cycles (%d bytes)\n",
(cycles + 4) / (8 * num_mb), blen);
out:
kfree(rc);
return ret;
}
static void test_mb_ahash_speed(const char *algo, unsigned int secs,
struct hash_speed *speed, u32 num_mb)
{
struct test_mb_ahash_data *data;
struct crypto_ahash *tfm;
unsigned int i, j, k;
int ret;
data = kcalloc(num_mb, sizeof(*data), GFP_KERNEL);
if (!data)
return;
tfm = crypto_alloc_ahash(algo, 0, 0);
if (IS_ERR(tfm)) {
pr_err("failed to load transform for %s: %ld\n",
algo, PTR_ERR(tfm));
goto free_data;
}
for (i = 0; i < num_mb; ++i) {
if (testmgr_alloc_buf(data[i].xbuf))
goto out;
crypto_init_wait(&data[i].wait);
data[i].req = ahash_request_alloc(tfm, GFP_KERNEL);
if (!data[i].req) {
pr_err("alg: hash: Failed to allocate request for %s\n",
algo);
goto out;
}
ahash_request_set_callback(data[i].req, 0, crypto_req_done,
&data[i].wait);
sg_init_table(data[i].sg, XBUFSIZE);
for (j = 0; j < XBUFSIZE; j++) {
sg_set_buf(data[i].sg + j, data[i].xbuf[j], PAGE_SIZE);
memset(data[i].xbuf[j], 0xff, PAGE_SIZE);
}
}
pr_info("\ntesting speed of multibuffer %s (%s)\n", algo,
get_driver_name(crypto_ahash, tfm));
for (i = 0; speed[i].blen != 0; i++) {
/* For some reason this only tests digests. */
if (speed[i].blen != speed[i].plen)
continue;
if (speed[i].blen > XBUFSIZE * PAGE_SIZE) {
pr_err("template (%u) too big for tvmem (%lu)\n",
speed[i].blen, XBUFSIZE * PAGE_SIZE);
goto out;
}
if (klen)
crypto_ahash_setkey(tfm, tvmem[0], klen);
for (k = 0; k < num_mb; k++)
ahash_request_set_crypt(data[k].req, data[k].sg,
data[k].result, speed[i].blen);
pr_info("test%3u "
"(%5u byte blocks,%5u bytes per update,%4u updates): ",
i, speed[i].blen, speed[i].plen,
speed[i].blen / speed[i].plen);
if (secs) {
ret = test_mb_ahash_jiffies(data, speed[i].blen, secs,
num_mb);
cond_resched();
} else {
ret = test_mb_ahash_cycles(data, speed[i].blen, num_mb);
}
if (ret) {
pr_err("At least one hashing failed ret=%d\n", ret);
break;
}
}
out:
for (k = 0; k < num_mb; ++k)
ahash_request_free(data[k].req);
for (k = 0; k < num_mb; ++k)
testmgr_free_buf(data[k].xbuf);
crypto_free_ahash(tfm);
free_data:
kfree(data);
}
static int test_ahash_jiffies_digest(struct ahash_request *req, int blen,
char *out, int secs)
{
unsigned long start, end;
int bcount;
int ret;
for (start = jiffies, end = start + secs * HZ, bcount = 0;
time_before(jiffies, end); bcount++) {
ret = do_one_ahash_op(req, crypto_ahash_digest(req));
if (ret)
return ret;
}
printk("%6u opers/sec, %9lu bytes/sec\n",
bcount / secs, ((long)bcount * blen) / secs);
return 0;
}
static int test_ahash_jiffies(struct ahash_request *req, int blen,
int plen, char *out, int secs)
{
unsigned long start, end;
int bcount, pcount;
int ret;
if (plen == blen)
return test_ahash_jiffies_digest(req, blen, out, secs);
for (start = jiffies, end = start + secs * HZ, bcount = 0;
time_before(jiffies, end); bcount++) {
ret = do_one_ahash_op(req, crypto_ahash_init(req));
if (ret)
return ret;
for (pcount = 0; pcount < blen; pcount += plen) {
ret = do_one_ahash_op(req, crypto_ahash_update(req));
if (ret)
return ret;
}
/* we assume there is enough space in 'out' for the result */
ret = do_one_ahash_op(req, crypto_ahash_final(req));
if (ret)
return ret;
}
pr_cont("%6u opers/sec, %9lu bytes/sec\n",
bcount / secs, ((long)bcount * blen) / secs);
return 0;
}
static int test_ahash_cycles_digest(struct ahash_request *req, int blen,
char *out)
{
unsigned long cycles = 0;
int ret, i;
/* Warm-up run. */
for (i = 0; i < 4; i++) {
ret = do_one_ahash_op(req, crypto_ahash_digest(req));
if (ret)
goto out;
}
/* The real thing. */
for (i = 0; i < 8; i++) {
cycles_t start, end;
start = get_cycles();
ret = do_one_ahash_op(req, crypto_ahash_digest(req));
if (ret)
goto out;
end = get_cycles();
cycles += end - start;
}
out:
if (ret)
return ret;
pr_cont("%6lu cycles/operation, %4lu cycles/byte\n",
cycles / 8, cycles / (8 * blen));
return 0;
}