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crypto: crct10dif - Simple correctness and speed test for CRCT10DIF hash

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These are simple tests to do sanity check of CRC T10 DIF hash.  The
correctness of the transform can be checked with the command
	modprobe tcrypt mode=47
The speed of the transform can be evaluated with the command
	modprobe tcrypt mode=320

Set the cpu frequency to constant and turn turbo off when running the
speed test so the frequency governor will not tweak the frequency and
affects the measurements.

Signed-off-by: Tim Chen <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
This commit is contained in:
Tim Chen 2013-05-01 12:52:51 -07:00 • committed by Herbert Xu
commit 39761214ee
3 changed files with 51 additions and 0 deletions
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8
crypto/tcrypt.c
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@ -1174,6 +1174,10 @@ static int do_test(int m)
ret += tcrypt_test("ghash");
break;
case 47:
ret += tcrypt_test("crct10dif");
break;
case 100:
ret += tcrypt_test("hmac(md5)");
break;
@ -1498,6 +1502,10 @@ static int do_test(int m)
test_hash_speed("crc32c", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 320:
test_hash_speed("crct10dif", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 399:
break;