Commit b34a0f67 authored by Gilad Ben-Yossef's avatar Gilad Ben-Yossef Committed by Herbert Xu
Browse files

crypto: tcrypt - add multi buf ahash jiffies test 



The multi buffer concurrent requests ahash speed test only
supported the cycles mode. Add support for the so called
jiffies mode that test performance of bytes/sec.

We only add support for digest mode at the moment.

Signed-off-by: default avatarGilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 8fcdc868

crypto/tcrypt.c

+82 −30
Original line number Diff line number Diff line
@@ -413,13 +413,87 @@ struct test_mb_ahash_data { 
	char *xbuf[XBUFSIZE];

};



static void test_mb_ahash_speed(const char *algo, unsigned int sec,

static inline int do_mult_ahash_op(struct test_mb_ahash_data *data, u32 num_mb)

{

	int i, rc[num_mb], 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;



	for (start = jiffies, end = start + secs * HZ, bcount = 0;

	     time_before(jiffies, end); bcount++) {

		ret = do_mult_ahash_op(data, num_mb);

		if (ret)

			return ret;

	}



	pr_cont("%d operations in %d seconds (%ld bytes)\n",

		bcount * num_mb, secs, (long)bcount * blen * num_mb);

	return 0;

}



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;



	/* Warm-up run. */

	for (i = 0; i < 4; i++) {

		ret = do_mult_ahash_op(data, num_mb);

		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);

		end = get_cycles();



		if (ret)

			goto out;



		cycles += end - start;

	}



out:

	if (ret == 0)

		pr_cont("1 operation in %lu cycles (%d bytes)\n",

			(cycles + 4) / (8 * num_mb), blen);



	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 long start, end;

	unsigned long cycles;

	unsigned int i, j, k;

	int ret;
@@ -483,34 +557,12 @@ static void test_mb_ahash_speed(const char *algo, unsigned int sec, 
			i, speed[i].blen, speed[i].plen,

			speed[i].blen / speed[i].plen);



		start = get_cycles();



		for (k = 0; k < num_mb; k++) {

			ret = crypto_ahash_digest(data[k].req);

			if (ret == -EINPROGRESS) {

				ret = 0;

				continue;

			}



			if (ret)

				break;



			crypto_req_done(&data[k].req->base, 0);

		}



		for (j = 0; j < k; j++) {

			struct crypto_wait *wait = &data[j].wait;

			int wait_ret;



			wait_ret = crypto_wait_req(-EINPROGRESS, wait);

			if (wait_ret)

				ret = wait_ret;

		}

		if (secs)

			ret = test_mb_ahash_jiffies(data, speed[i].blen, secs,

						    num_mb);

		else

			ret = test_mb_ahash_cycles(data, speed[i].blen, num_mb);



		end = get_cycles();

		cycles = end - start;

		pr_cont("%6lu cycles/operation, %4lu cycles/byte\n",

			cycles, cycles / (num_mb * speed[i].blen));



		if (ret) {

			pr_err("At least one hashing failed ret=%d\n", ret);