igb: Make sure that mbuf is changed before busdma sync

This should not be problem for igb, since it does not have any
busdma constraint thus no effective busdma sync will happen.

diff --git a/sys/dev/netif/igb/if_igb.c b/sys/dev/netif/igb/if_igb.c
index 36241d8..5761038 100644 (file)
--- a/sys/dev/netif/igb/if_igb.c
+++ b/sys/dev/netif/igb/if_igb.c
@@ -4195,7 +4195,7 @@ igb_set_ring_inuse(struct igb_softc *sc, boolean_t polling)
 }
 
 static int
-igb_tso_pullup(struct igb_tx_ring *txr __unused, struct mbuf **mp)
+igb_tso_pullup(struct igb_tx_ring *txr, struct mbuf **mp)
 {
        int hoff, iphlen, thoff;
        struct mbuf *m;
@@ -4219,6 +4219,13 @@ igb_tso_pullup(struct igb_tx_ring *txr __unused, struct mbuf **mp)
                }
                *mp = m;
        }
+       if (txr->sc->flags & IGB_FLAG_TSO_IPLEN0) {
+               struct ip *ip;
+
+               ip = mtodoff(m, struct ip *, hoff);
+               ip->ip_len = 0;
+       }
+
        return 0;
 }
 
@@ -4233,13 +4240,6 @@ igb_tso_ctx(struct igb_tx_ring *txr, struct mbuf *m, uint32_t *hlen)
        thoff = m->m_pkthdr.csum_thlen;
        hoff = m->m_pkthdr.csum_lhlen;
 
-       if (txr->sc->flags & IGB_FLAG_TSO_IPLEN0) {
-               struct ip *ip;
-
-               ip = mtodoff(m, struct ip *, hoff);
-               ip->ip_len = 0;
-       }
-
        vlan_macip_lens = type_tucmd_mlhl = mss_l4len_idx = 0;
 
        ctxd = txr->next_avail_desc;