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authorDamjan Marion <dmarion@me.com>2020-02-12 20:12:55 +0100
committerNeale Ranns <nranns@cisco.com>2020-02-13 09:41:24 +0000
commit11da575089cd73fb75b847d01aee81fb551e8598 (patch)
tree8100b381269223c56c057645a2afa642bc61e96c /src/plugins/crypto_native
parent98bd75778736d4322db5ee7ecf5c548133e05d0f (diff)
crypto-native: add AArch64 ghash support
Type: improvement Change-Id: I1f204685ea9374389fc24fc53184ce06806beed3 Signed-off-by: Damjan Marion <dmarion@me.com>
Diffstat (limited to 'src/plugins/crypto_native')
-rw-r--r--src/plugins/crypto_native/ghash.h24
1 files changed, 23 insertions, 1 deletions
diff --git a/src/plugins/crypto_native/ghash.h b/src/plugins/crypto_native/ghash.h
index 79f4a348af2..1ee1a997997 100644
--- a/src/plugins/crypto_native/ghash.h
+++ b/src/plugins/crypto_native/ghash.h
@@ -120,25 +120,44 @@ ghash_xor3 (u8x16 a, u8x16 b, u8x16 c)
static_always_inline u8x16
gmul_lo_lo (u8x16 a, u8x16 b)
{
+#if defined (__PCLMUL__)
return (u8x16) _mm_clmulepi64_si128 ((__m128i) a, (__m128i) b, 0x00);
+#elif defined (__ARM_FEATURE_CRYPTO)
+ return (u8x16) vmull_p64 ((poly64_t) vget_low_p64 ((poly64x2_t) a),
+ (poly64_t) vget_low_p64 ((poly64x2_t) b));
+#endif
}
static_always_inline u8x16
gmul_hi_lo (u8x16 a, u8x16 b)
{
+#if defined (__PCLMUL__)
return (u8x16) _mm_clmulepi64_si128 ((__m128i) a, (__m128i) b, 0x01);
+#elif defined (__ARM_FEATURE_CRYPTO)
+ return (u8x16) vmull_p64 ((poly64_t) vget_high_p64 ((poly64x2_t) a),
+ (poly64_t) vget_low_p64 ((poly64x2_t) b));
+#endif
}
static_always_inline u8x16
gmul_lo_hi (u8x16 a, u8x16 b)
{
+#if defined (__PCLMUL__)
return (u8x16) _mm_clmulepi64_si128 ((__m128i) a, (__m128i) b, 0x10);
+#elif defined (__ARM_FEATURE_CRYPTO)
+ return (u8x16) vmull_p64 ((poly64_t) vget_low_p64 ((poly64x2_t) a),
+ (poly64_t) vget_high_p64 ((poly64x2_t) b));
+#endif
}
static_always_inline u8x16
gmul_hi_hi (u8x16 a, u8x16 b)
{
+#if defined (__PCLMUL__)
return (u8x16) _mm_clmulepi64_si128 ((__m128i) a, (__m128i) b, 0x11);
+#elif defined (__ARM_FEATURE_CRYPTO)
+ return (u8x16) vmull_high_p64 ((poly64x2_t) a, (poly64x2_t) b);
+#endif
}
typedef struct
@@ -222,7 +241,6 @@ ghash_reduce (ghash_data_t * gd)
gd->lo ^= midl;
gd->hi ^= midr;
}
-
r = gmul_hi_lo (ghash_poly2, gd->lo);
gd->lo ^= u8x16_word_shift_left (r, 8);
}
@@ -261,7 +279,11 @@ ghash_precompute (u8x16 H, u8x16 * Hi, int count)
H = (u8x16) ((u64x2) H << 1);
H |= u8x16_word_shift_left (r8, 8);
r32 = (u32x4) u8x16_word_shift_right (r8, 8);
+#ifdef __SSE2__
r32 = u32x4_shuffle (r32, 0, 1, 2, 0);
+#else
+ r32[3] = r32[0];
+#endif
/* *INDENT-OFF* */
r32 = r32 == (u32x4) {1, 0, 0, 1};
/* *INDENT-ON* */