mbuf: copy offload flags when doing attach/clone

rte_pktmbuf_attach copies the packet meta data but does not
copy the offload flags. This means that cloned packets lose
their offload settings such as vlan tag.

Signed-off-by: Stephen Hemminger <shemming@brocade.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>

diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index 954e990c5f8d064e7a2ef119e28f9de5d387c615..edffc2c4db4bd921252e735afb25e933b92f6e24 100644 (file)
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -624,6 +624,7 @@ static inline void rte_pktmbuf_attach(struct rte_mbuf *mi, struct rte_mbuf *md)
        mi->pkt.next = NULL;
        mi->pkt.pkt_len = mi->pkt.data_len;
        mi->pkt.nb_segs = 1;
+       mi->ol_flags = md->ol_flags;
 
        __rte_mbuf_sanity_check(mi, RTE_MBUF_PKT, 1);
        __rte_mbuf_sanity_check(md, RTE_MBUF_PKT, 0);