-#define PKTLEN_SHIFT (6)
-#define PKTLEN_MASK (0x3FFF)
-/* Handling the pkt len field is not aligned with 1byte, so shift is
- * needed to let it align
- */
-static inline void
-desc_pktlen_align(__m128i descs[4])
-{
- __m128i pktlen0, pktlen1, zero;
- union {
- uint16_t e[4];
- uint64_t dword;
- } vol;
-
- /* mask everything except pktlen field*/
- const __m128i pktlen_msk = _mm_set_epi32(PKTLEN_MASK, PKTLEN_MASK,
- PKTLEN_MASK, PKTLEN_MASK);
-
- pktlen0 = _mm_unpackhi_epi32(descs[0], descs[2]);
- pktlen1 = _mm_unpackhi_epi32(descs[1], descs[3]);
- pktlen0 = _mm_unpackhi_epi32(pktlen0, pktlen1);
-
- zero = _mm_xor_si128(pktlen0, pktlen0);
-
- pktlen0 = _mm_srli_epi32(pktlen0, PKTLEN_SHIFT);
- pktlen0 = _mm_and_si128(pktlen0, pktlen_msk);
-
- pktlen0 = _mm_packs_epi32(pktlen0, zero);
- vol.dword = _mm_cvtsi128_si64(pktlen0);
- /* let the descriptor byte 15-14 store the pkt len */
- *((uint16_t *)&descs[0]+7) = vol.e[0];
- *((uint16_t *)&descs[1]+7) = vol.e[1];
- *((uint16_t *)&descs[2]+7) = vol.e[2];
- *((uint16_t *)&descs[3]+7) = vol.e[3];
-}