Re: [dpdk-dev] [PATCH v7 1/7] hash: replace existing hash library with cuckoo hash implementation

[Tony Lu <zlu@ezchip.com>]

>diff --git a/lib/librte_hash/rte_cuckoo_hash.c
b/lib/librte_hash/rte_cuckoo_hash.c
>new file mode 100644
>index 0000000..50e3acd
>--- /dev/null
>+++ b/lib/librte_hash/rte_cuckoo_hash.c
>@@ -0,0 +1,1027 @@
...
>+
>+/* Functions to compare multiple of 16 byte keys (up to 128 bytes) */
>+static int
>+rte_hash_k16_cmp_eq(const void *key1, const void *key2, size_t key_len
>__rte_unused)
>+{
>+	const __m128i k1 = _mm_loadu_si128((const __m128i *) key1);
>+	const __m128i k2 = _mm_loadu_si128((const __m128i *) key2);
>+	const __m128i x = _mm_xor_si128(k1, k2);
>+
>+	return !_mm_test_all_zeros(x, x);
>+}
...

When compiling the latest dev DPDK for non-x86 arch, it fails on the above
code,
as the SSE is x86 specific defined in <emmintrin.h>.  Is it possible to
replace this
function with platform independent code?

Thanks
-Zhigang Lu