在 2017年5月3日，下午11:32，Kavanagh, Mark B <mark.b.kavan...@intel.com> 写道：
>> >> From: Michael Qiu <qiud...@chinac.com> >> >> Currently, when doing packet copy, lots of DPDK mbuf's info >> will be missed, like packet type, ol_flags, etc. >> Those information is very important for DPDK to do >> packets processing. >> >> Signed-off-by: Michael Qiu <qiud...@chinac.com> >> --- >> lib/dp-packet.c | 3 +++ >> lib/netdev-dpdk.c | 4 ++++ >> 2 files changed, 7 insertions(+) >> >> diff --git a/lib/dp-packet.c b/lib/dp-packet.c >> index 109947c..79f6e7e 100644 >> --- a/lib/dp-packet.c >> +++ b/lib/dp-packet.c >> @@ -176,6 +176,9 @@ dp_packet_clone_with_headroom(const struct dp_packet >> *buffer, size_t >> headroom) > > If I'm, not mistaken, this function is invoked as part of the > execute_controller_action - I'm not too familiar with this action, could you > provide an example of how it is used in this context? Here I will check it tomorrow. It's a long time since I make this change, but without this change, it will not work correctly in some situation after vxlan hw offloading enabled. > >> new_buffer->cutlen = buffer->cutlen; >> #ifdef DPDK_NETDEV >> new_buffer->mbuf.ol_flags = buffer->mbuf.ol_flags; >> + new_buffer->mbuf.tx_offload = buffer->mbuf.tx_offload; >> + new_buffer->mbuf.packet_type = buffer->mbuf.packet_type; >> + new_buffer->mbuf.nb_segs = buffer->mbuf.nb_segs; >> #else >> new_buffer->rss_hash_valid = buffer->rss_hash_valid; >> #endif >> diff --git a/lib/netdev-dpdk.c b/lib/netdev-dpdk.c >> index ddc651b..ba044a3 100644 >> --- a/lib/netdev-dpdk.c >> +++ b/lib/netdev-dpdk.c >> @@ -1764,6 +1764,10 @@ dpdk_do_tx_copy(struct netdev *netdev, int qid, >> struct dp_packet_batch >> *batch) >> memcpy(rte_pktmbuf_mtod(pkts[newcnt], void *), >> dp_packet_data(batch->packets[i]), size); >> >> + pkts[newcnt]->nb_segs = batch->packets[i]->mbuf.nb_segs; >> + pkts[newcnt]->ol_flags = batch->packets[i]->mbuf.ol_flags; >> + pkts[newcnt]->packet_type = batch->packets[i]->mbuf.packet_type; >> + pkts[newcnt]->tx_offload = batch->packets[i]->mbuf.tx_offload; > > If packet comes from a non-DPDK source, are these fields of any value? That's why we need the first patch, set them to zero. > >> rte_pktmbuf_data_len(pkts[newcnt]) = size; >> rte_pktmbuf_pkt_len(pkts[newcnt]) = size; >> >> -- >> 1.8.3.1 > > _______________________________________________ > dev mailing list > d...@openvswitch.org > https://mail.openvswitch.org/mailman/listinfo/ovs-dev _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
