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Diffstat (limited to 'crypto')
-rw-r--r--crypto/tcrypt.c250
1 files changed, 250 insertions, 0 deletions
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index ac9e4d2a63b8..dd3a0f8a0912 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -719,6 +719,207 @@ out:
crypto_free_ahash(tfm);
}
+static inline int do_one_acipher_op(struct ablkcipher_request *req, int ret)
+{
+ if (ret == -EINPROGRESS || ret == -EBUSY) {
+ struct tcrypt_result *tr = req->base.data;
+
+ ret = wait_for_completion_interruptible(&tr->completion);
+ if (!ret)
+ ret = tr->err;
+ INIT_COMPLETION(tr->completion);
+ }
+
+ return ret;
+}
+
+static int test_acipher_jiffies(struct ablkcipher_request *req, int enc,
+ int blen, int sec)
+{
+ unsigned long start, end;
+ int bcount;
+ int ret;
+
+ for (start = jiffies, end = start + sec * HZ, bcount = 0;
+ time_before(jiffies, end); bcount++) {
+ if (enc)
+ ret = do_one_acipher_op(req,
+ crypto_ablkcipher_encrypt(req));
+ else
+ ret = do_one_acipher_op(req,
+ crypto_ablkcipher_decrypt(req));
+
+ if (ret)
+ return ret;
+ }
+
+ pr_cont("%d operations in %d seconds (%ld bytes)\n",
+ bcount, sec, (long)bcount * blen);
+ return 0;
+}
+
+static int test_acipher_cycles(struct ablkcipher_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_acipher_op(req,
+ crypto_ablkcipher_encrypt(req));
+ else
+ ret = do_one_acipher_op(req,
+ crypto_ablkcipher_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_acipher_op(req,
+ crypto_ablkcipher_encrypt(req));
+ else
+ ret = do_one_acipher_op(req,
+ crypto_ablkcipher_decrypt(req));
+ 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, blen);
+
+ return ret;
+}
+
+static void test_acipher_speed(const char *algo, int enc, unsigned int sec,
+ struct cipher_speed_template *template,
+ unsigned int tcount, u8 *keysize)
+{
+ unsigned int ret, i, j, iv_len;
+ struct tcrypt_result tresult;
+ const char *key;
+ char iv[128];
+ struct ablkcipher_request *req;
+ struct crypto_ablkcipher *tfm;
+ const char *e;
+ u32 *b_size;
+
+ if (enc == ENCRYPT)
+ e = "encryption";
+ else
+ e = "decryption";
+
+ pr_info("\ntesting speed of async %s %s\n", algo, e);
+
+ init_completion(&tresult.completion);
+
+ tfm = crypto_alloc_ablkcipher(algo, 0, 0);
+
+ if (IS_ERR(tfm)) {
+ pr_err("failed to load transform for %s: %ld\n", algo,
+ PTR_ERR(tfm));
+ return;
+ }
+
+ req = ablkcipher_request_alloc(tfm, GFP_KERNEL);
+ if (!req) {
+ pr_err("tcrypt: skcipher: Failed to allocate request for %s\n",
+ algo);
+ goto out;
+ }
+
+ ablkcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
+ tcrypt_complete, &tresult);
+
+ i = 0;
+ do {
+ b_size = block_sizes;
+
+ do {
+ struct scatterlist sg[TVMEMSIZE];
+
+ if ((*keysize + *b_size) > TVMEMSIZE * PAGE_SIZE) {
+ pr_err("template (%u) too big for "
+ "tvmem (%lu)\n", *keysize + *b_size,
+ TVMEMSIZE * PAGE_SIZE);
+ goto out_free_req;
+ }
+
+ pr_info("test %u (%d bit key, %d byte blocks): ", i,
+ *keysize * 8, *b_size);
+
+ memset(tvmem[0], 0xff, PAGE_SIZE);
+
+ /* set key, plain text and IV */
+ key = tvmem[0];
+ for (j = 0; j < tcount; j++) {
+ if (template[j].klen == *keysize) {
+ key = template[j].key;
+ break;
+ }
+ }
+
+ crypto_ablkcipher_clear_flags(tfm, ~0);
+
+ ret = crypto_ablkcipher_setkey(tfm, key, *keysize);
+ if (ret) {
+ pr_err("setkey() failed flags=%x\n",
+ crypto_ablkcipher_get_flags(tfm));
+ goto out_free_req;
+ }
+
+ sg_init_table(sg, TVMEMSIZE);
+ sg_set_buf(sg, tvmem[0] + *keysize,
+ PAGE_SIZE - *keysize);
+ for (j = 1; j < TVMEMSIZE; j++) {
+ sg_set_buf(sg + j, tvmem[j], PAGE_SIZE);
+ memset(tvmem[j], 0xff, PAGE_SIZE);
+ }
+
+ iv_len = crypto_ablkcipher_ivsize(tfm);
+ if (iv_len)
+ memset(&iv, 0xff, iv_len);
+
+ ablkcipher_request_set_crypt(req, sg, sg, *b_size, iv);
+
+ if (sec)
+ ret = test_acipher_jiffies(req, enc,
+ *b_size, sec);
+ else
+ ret = test_acipher_cycles(req, enc,
+ *b_size);
+
+ if (ret) {
+ pr_err("%s() failed flags=%x\n", e,
+ crypto_ablkcipher_get_flags(tfm));
+ break;
+ }
+ b_size++;
+ i++;
+ } while (*b_size);
+ keysize++;
+ } while (*keysize);
+
+out_free_req:
+ ablkcipher_request_free(req);
+out:
+ crypto_free_ablkcipher(tfm);
+}
+
static void test_available(void)
{
char **name = check;
@@ -1243,6 +1444,55 @@ static int do_test(int m)
case 499:
break;
+ case 500:
+ test_acipher_speed("ecb(aes)", ENCRYPT, sec, NULL, 0,
+ speed_template_16_24_32);
+ test_acipher_speed("ecb(aes)", DECRYPT, sec, NULL, 0,
+ speed_template_16_24_32);
+ test_acipher_speed("cbc(aes)", ENCRYPT, sec, NULL, 0,
+ speed_template_16_24_32);
+ test_acipher_speed("cbc(aes)", DECRYPT, sec, NULL, 0,
+ speed_template_16_24_32);
+ test_acipher_speed("lrw(aes)", ENCRYPT, sec, NULL, 0,
+ speed_template_32_40_48);
+ test_acipher_speed("lrw(aes)", DECRYPT, sec, NULL, 0,
+ speed_template_32_40_48);
+ test_acipher_speed("xts(aes)", ENCRYPT, sec, NULL, 0,
+ speed_template_32_48_64);
+ test_acipher_speed("xts(aes)", DECRYPT, sec, NULL, 0,
+ speed_template_32_48_64);
+ test_acipher_speed("ctr(aes)", ENCRYPT, sec, NULL, 0,
+ speed_template_16_24_32);
+ test_acipher_speed("ctr(aes)", DECRYPT, sec, NULL, 0,
+ speed_template_16_24_32);
+ break;
+
+ case 501:
+ test_acipher_speed("ecb(des3_ede)", ENCRYPT, sec,
+ des3_speed_template, DES3_SPEED_VECTORS,
+ speed_template_24);
+ test_acipher_speed("ecb(des3_ede)", DECRYPT, sec,
+ des3_speed_template, DES3_SPEED_VECTORS,
+ speed_template_24);
+ test_acipher_speed("cbc(des3_ede)", ENCRYPT, sec,
+ des3_speed_template, DES3_SPEED_VECTORS,
+ speed_template_24);
+ test_acipher_speed("cbc(des3_ede)", DECRYPT, sec,
+ des3_speed_template, DES3_SPEED_VECTORS,
+ speed_template_24);
+ break;
+
+ case 502:
+ test_acipher_speed("ecb(des)", ENCRYPT, sec, NULL, 0,
+ speed_template_8);
+ test_acipher_speed("ecb(des)", DECRYPT, sec, NULL, 0,
+ speed_template_8);
+ test_acipher_speed("cbc(des)", ENCRYPT, sec, NULL, 0,
+ speed_template_8);
+ test_acipher_speed("cbc(des)", DECRYPT, sec, NULL, 0,
+ speed_template_8);
+ break;
+
case 1000:
test_available();
break;