linux-kernel - [RFC V1 4/7] crypto: tcrypt - Add speed test for optimized GHASH computations

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Date:   Fri, 18 Dec 2020 13:11:01 -0800
From:   Megha Dey <megha.dey@...el.com>
To:     herbert@...dor.apana.org.au, davem@...emloft.net
Cc:     linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
        ravi.v.shankar@...el.com, tim.c.chen@...el.com,
        andi.kleen@...el.com, dave.hansen@...el.com, megha.dey@...el.com,
        wajdi.k.feghali@...el.com, greg.b.tucker@...el.com,
        robert.a.kasten@...el.com, rajendrakumar.chinnaiyan@...el.com,
        tomasz.kantecki@...el.com, ryan.d.saffores@...el.com,
        ilya.albrekht@...el.com, kyung.min.park@...el.com,
        tony.luck@...el.com, ira.weiny@...el.com
Subject: [RFC V1 4/7] crypto: tcrypt - Add speed test for optimized GHASH computations

From: Kyung Min Park <kyung.min.park@...el.com>

Add speed test for optimized GHASH computations with vectorized
instructions. Introduce a new test suite to calculate the speed
for this algorithm.

Signed-off-by: Kyung Min Park <kyung.min.park@...el.com>
Signed-off-by: Megha Dey <megha.dey@...el.com>
---
 crypto/tcrypt.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index a647bb2..6e2d74c6 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -2595,6 +2595,11 @@ static int do_test(const char *alg, u32 type, u32 mask, int m, u32 num_mb)
 				    generic_hash_speed_template, num_mb);
 		if (mode > 400 && mode < 500) break;
 		fallthrough;
+	case 428:
+		klen = 16;
+		test_ahash_speed("ghash", sec, generic_hash_speed_template);
+		if (mode > 400 && mode < 500) break;
+		fallthrough;
 	case 499:
 		break;
 
-- 
2.7.4