This patch resolves a number of issues with the mb speed test
function:
* The tfm is never freed.
* Memory is allocated even when we're not using mb.
* When an error occurs we don't wait for completion for other requests.
* When an error occurs during allocation we may leak memory.
* The test function ignores plen but still runs for plen != blen.
* The backlog flag is incorrectly used (may crash).
This patch tries to resolve all these issues as well as making
the code consistent with the existing hash speed testing function.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
-char ptext[4096];
-struct scatterlist sg[8][8];
-char result[8][64];
-struct ahash_request *req[8];
-struct tcrypt_result tresult[8];
-char *xbuf[8][XBUFSIZE];
-unsigned long start[8], end[8], mid;
+struct test_mb_ahash_data {
+ struct scatterlist sg[TVMEMSIZE];
+ char result[64];
+ struct ahash_request *req;
+ struct tcrypt_result tresult;
+ char *xbuf[XBUFSIZE];
+};
static void test_mb_ahash_speed(const char *algo, unsigned int sec,
static void test_mb_ahash_speed(const char *algo, unsigned int sec,
- struct hash_speed *speed)
+ struct hash_speed *speed)
- unsigned int i, j, k;
- void *hash_buff;
- int ret = -ENOMEM;
+ struct test_mb_ahash_data *data;
struct crypto_ahash *tfm;
struct crypto_ahash *tfm;
+ unsigned long start, end;
+ unsigned int i, j, k;
+ int ret;
+
+ data = kzalloc(sizeof(*data) * 8, 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));
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));
for (i = 0; i < 8; ++i) {
for (i = 0; i < 8; ++i) {
- if (testmgr_alloc_buf(xbuf[i]))
- goto out_nobuf;
+ if (testmgr_alloc_buf(data[i].xbuf))
+ goto out;
- init_completion(&tresult[i].completion);
+ init_completion(&data[i].tresult.completion);
- req[i] = ahash_request_alloc(tfm, GFP_KERNEL);
- if (!req[i]) {
+ 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);
pr_err("alg: hash: Failed to allocate request for %s\n",
algo);
- ahash_request_set_callback(req[i], CRYPTO_TFM_REQ_MAY_BACKLOG,
- tcrypt_complete, &tresult[i]);
- hash_buff = xbuf[i][0];
- memcpy(hash_buff, ptext, 4096);
+ ahash_request_set_callback(data[i].req, 0,
+ tcrypt_complete, &data[i].tresult);
+ test_hash_sg_init(data[i].sg);
- j = 0;
-
- pr_err("\ntesting speed of %s (%s)\n", algo,
- get_driver_name(crypto_ahash, tfm));
+ 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 (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 > TVMEMSIZE * PAGE_SIZE) {
pr_err("template (%u) too big for tvmem (%lu)\n",
speed[i].blen, TVMEMSIZE * PAGE_SIZE);
if (speed[i].blen > TVMEMSIZE * PAGE_SIZE) {
pr_err("template (%u) too big for tvmem (%lu)\n",
speed[i].blen, TVMEMSIZE * PAGE_SIZE);
if (speed[i].klen)
crypto_ahash_setkey(tfm, tvmem[0], speed[i].klen);
if (speed[i].klen)
crypto_ahash_setkey(tfm, tvmem[0], speed[i].klen);
- for (k = 0; k < 8; ++k) {
- sg_init_one(&sg[k][0], (void *) xbuf[k][0],
- speed[i].blen);
- ahash_request_set_crypt(req[k], sg[k],
- result[k], speed[i].blen);
- }
+ for (k = 0; k < 8; k++)
+ ahash_request_set_crypt(data[k].req, data[k].sg,
+ data[k].result, speed[i].blen);
- pr_err("test%3u (%5u byte blocks,%5u bytes per update,%4u updates): ",
+ 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);
i, speed[i].blen, speed[i].plen,
speed[i].blen / speed[i].plen);
- for (k = 0; k < 8; ++k) {
- start[k] = get_cycles();
- ret = crypto_ahash_digest(req[k]);
- if (ret == -EBUSY || ret == -EINPROGRESS)
+ start = get_cycles();
+
+ for (k = 0; k < 8; k++) {
+ ret = crypto_ahash_digest(data[k].req);
+ if (ret == -EINPROGRESS)
- if (ret) {
- pr_err("alg (%s) something wrong, ret = %d ...\n",
- algo, ret);
- goto out;
- }
+
+ if (ret)
+ break;
+
+ complete(&data[k].tresult.completion);
+ data[k].tresult.err = 0;
- for (k = 0; k < 8; ++k) {
- struct tcrypt_result *tr = &tresult[k];
+ for (j = 0; j < k; j++) {
+ struct tcrypt_result *tr = &data[j].tresult;
- ret = wait_for_completion_interruptible(&tr->completion);
- if (ret)
- pr_err("alg(%s): hash: digest failed\n", algo);
- end[k] = get_cycles();
+ wait_for_completion(&tr->completion);
+ if (tr->err)
+ ret = tr->err;
- cycles = end[7] - start[0];
- printk("\nBlock: %6lu cycles (%4lu cycles/byte)\n",
- cycles, cycles / (8 * speed[i].blen));
+ end = get_cycles();
+ cycles = end - start;
+ pr_cont("%6lu cycles/operation, %4lu cycles/byte\n",
+ cycles, cycles / (8 * speed[i].blen));
+
+ if (ret) {
+ pr_err("At least one hashing failed ret=%d\n", ret);
+ break;
+ }
out:
for (k = 0; k < 8; ++k)
out:
for (k = 0; k < 8; ++k)
- ahash_request_free(req[k]);
-out_noreq:
+ ahash_request_free(data[k].req);
+
- testmgr_free_buf(xbuf[k]);
-out_nobuf:
- return;
+ 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,
}
static int test_ahash_jiffies_digest(struct ahash_request *req, int blen,