extern "C" {
#endif
-#ifdef __GFNI__
+#if defined(__GFNI__) && defined(__AVX512F__)
#define RTE_THASH_GFNI_DEFINED
#define RTE_THASH_FIRST_ITER_MSK 0x0f0f0f0f0f0e0c08
{
__m256i tmp_256_1, tmp_256_2;
__m128i tmp128_1, tmp128_2;
- uint64_t tmp_1, tmp_2;
tmp_256_1 = _mm512_castsi512_si256(xor_acc);
tmp_256_2 = _mm512_extracti32x8_epi32(xor_acc, 1);
tmp128_2 = _mm256_extracti32x4_epi32(tmp_256_1, 1);
tmp128_1 = _mm_xor_si128(tmp128_1, tmp128_2);
+#ifdef RTE_ARCH_X86_64
+ uint64_t tmp_1, tmp_2;
tmp_1 = _mm_extract_epi64(tmp128_1, 0);
tmp_2 = _mm_extract_epi64(tmp128_1, 1);
tmp_1 ^= tmp_2;
*val_1 = (uint32_t)tmp_1;
*val_2 = (uint32_t)(tmp_1 >> 32);
+#else
+ uint32_t tmp_1, tmp_2;
+ tmp_1 = _mm_extract_epi32(tmp128_1, 0);
+ tmp_2 = _mm_extract_epi32(tmp128_1, 1);
+ tmp_1 ^= _mm_extract_epi32(tmp128_1, 2);
+ tmp_2 ^= _mm_extract_epi32(tmp128_1, 3);
+
+ *val_1 = tmp_1;
+ *val_2 = tmp_2;
+#endif
}
__rte_internal
__rte_thash_gfni(const uint64_t *mtrx, const uint8_t *tuple,
const uint8_t *secondary_tuple, int len)
{
- __m512i permute_idx = _mm512_set_epi8(7, 6, 5, 4, 7, 6, 5, 4,
- 6, 5, 4, 3, 6, 5, 4, 3,
- 5, 4, 3, 2, 5, 4, 3, 2,
- 4, 3, 2, 1, 4, 3, 2, 1,
- 3, 2, 1, 0, 3, 2, 1, 0,
- 2, 1, 0, -1, 2, 1, 0, -1,
- 1, 0, -1, -2, 1, 0, -1, -2,
- 0, -1, -2, -3, 0, -1, -2, -3);
-
- const __m512i rewind_idx = _mm512_set_epi8(0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 59, 0, 0, 0, 59,
- 0, 0, 59, 58, 0, 0, 59, 58,
- 0, 59, 58, 57, 0, 59, 58, 57);
+ __m512i permute_idx = _mm512_set_epi32(0x07060504, 0x07060504,
+ 0x06050403, 0x06050403,
+ 0x05040302, 0x05040302,
+ 0x04030201, 0x04030201,
+ 0x03020100, 0x03020100,
+ 0x020100FF, 0x020100FF,
+ 0x0100FFFE, 0x0100FFFE,
+ 0x00FFFEFD, 0x00FFFEFD);
+ const __m512i rewind_idx = _mm512_set_epi32(0x00000000, 0x00000000,
+ 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000,
+ 0x0000003B, 0x0000003B,
+ 0x00003B3A, 0x00003B3A,
+ 0x003B3A39, 0x003B3A39);
const __mmask64 rewind_mask = RTE_THASH_REWIND_MSK;
const __m512i shift_8 = _mm512_set1_epi8(8);
__m512i xor_acc = _mm512_setzero_si512();
return val;
}
-#endif /* _GFNI_ */
+/**
+ * Bulk implementation for Toeplitz hash.
+ *
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * @param m
+ * Pointer to the matrices generated from the corresponding
+ * RSS hash key using rte_thash_complete_matrix().
+ * Note that @p len should not exceed the length of the rss_key minus 4.
+ * @param len
+ * Length of the largest data buffer to be hashed.
+ * @param tuple
+ * Array of the pointers on data to be hashed.
+ * Data must be in network byte order.
+ * @param val
+ * Array of uint32_t where to put calculated Toeplitz hash values
+ * @param num
+ * Number of tuples to hash.
+ */
+__rte_experimental
+static inline void
+rte_thash_gfni_bulk(const uint64_t *mtrx, int len, uint8_t *tuple[],
+ uint32_t val[], uint32_t num)
+{
+ uint32_t i;
+ uint32_t val_zero;
+ __m512i xor_acc;
+
+ for (i = 0; i != (num & ~1); i += 2) {
+ xor_acc = __rte_thash_gfni(mtrx, tuple[i], tuple[i + 1], len);
+ __rte_thash_xor_reduce(xor_acc, val + i, val + i + 1);
+ }
+
+ if (num & 1) {
+ xor_acc = __rte_thash_gfni(mtrx, tuple[i], NULL, len);
+ __rte_thash_xor_reduce(xor_acc, val + i, &val_zero);
+ }
+}
+
+#endif /* __GFNI__ && __AVX512F__ */
#ifdef __cplusplus
}