diff --git a/sys/dev/hyperv/netvsc/if_hn.c b/sys/dev/hyperv/netvsc/if_hn.c index 5a57ea796d0e..9243ff226f5b 100644 --- a/sys/dev/hyperv/netvsc/if_hn.c +++ b/sys/dev/hyperv/netvsc/if_hn.c @@ -3077,13 +3077,24 @@ hn_encap(struct ifnet *ifp, struct hn_tx_ring *txr, struct hn_txdesc *txd, if (txr->hn_tx_flags & HN_TX_FLAG_HASHVAL) { /* - * Set the hash value for this packet, so that the host could - * dispatch the TX done event for this packet back to this TX - * ring's channel. + * Set the hash value for this packet. */ pi_data = hn_rndis_pktinfo_append(pkt, HN_RNDIS_PKT_LEN, HN_NDIS_HASH_VALUE_SIZE, HN_NDIS_PKTINFO_TYPE_HASHVAL); - *pi_data = txr->hn_tx_idx; + + if (M_HASHTYPE_ISHASH(m_head)) + /* + * The flowid field contains the hash value host + * set in the rx queue if it is a ip forwarding pkt. + * Set the same hash value so host can send on the + * cpu it was received. + */ + *pi_data = m_head->m_pkthdr.flowid; + else + /* + * Otherwise just put the tx queue index. + */ + *pi_data = txr->hn_tx_idx; } if (m_head->m_flags & M_VLANTAG) {