Index: sys/net/iflib.c =================================================================== --- sys/net/iflib.c +++ sys/net/iflib.c @@ -1226,8 +1226,17 @@ { __asm volatile("prefetcht0 %0" :: "m" (*(unsigned long *)x)); } +static __inline void +prefetch2(void *x) +{ + __asm volatile("prefetcht0 %0" :: "m" (*(unsigned long *)x)); +#if (CACHE_LINE_SIZE < 128) + __asm volatile("prefetcht0 %0" :: "m" (*(((unsigned long *)x)+CACHE_LINE_SIZE/(sizeof(unsigned long))))); +#endif +} #else #define prefetch(x) +#define prefetch2(x) #endif static void @@ -3070,12 +3079,12 @@ m_head = *m_headp; pkt_info_zero(&pi); - pi.ipi_len = m_head->m_pkthdr.len; pi.ipi_mflags = (m_head->m_flags & (M_VLANTAG|M_BCAST|M_MCAST)); - pi.ipi_csum_flags = m_head->m_pkthdr.csum_flags; - pi.ipi_vtag = (m_head->m_flags & M_VLANTAG) ? m_head->m_pkthdr.ether_vtag : 0; pi.ipi_pidx = pidx; pi.ipi_qsidx = txq->ift_id; + pi.ipi_len = m_head->m_pkthdr.len; + pi.ipi_csum_flags = m_head->m_pkthdr.csum_flags; + pi.ipi_vtag = (m_head->m_flags & M_VLANTAG) ? m_head->m_pkthdr.ether_vtag : 0; /* deliberate bitwise OR to make one condition */ if (__predict_true((pi.ipi_csum_flags | pi.ipi_vtag))) { @@ -3307,10 +3316,10 @@ prefetch(items[(cidx + offset) & (size-1)]); if (remaining > 1) { - prefetch(&items[next]); - prefetch(items[(cidx + offset + 1) & (size-1)]); - prefetch(items[(cidx + offset + 2) & (size-1)]); - prefetch(items[(cidx + offset + 3) & (size-1)]); + prefetch2(&items[next]); + prefetch2(items[(cidx + offset + 1) & (size-1)]); + prefetch2(items[(cidx + offset + 2) & (size-1)]); + prefetch2(items[(cidx + offset + 3) & (size-1)]); } return (__DEVOLATILE(struct mbuf **, &r->items[(cidx + offset) & (size-1)])); }