vmxnet3 pmd cannot received icmp6 ns packet

https://bugs.dpdk.org/show_bug.cgi?id=470

            Bug ID: 470
           Summary: vmxnet3 pmd cannot received icmp6 ns packet
           Product: DPDK
           Version: 16.04
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: ethdev
          Assignee: [email protected]
          Reporter: [email protected]

Target Milestone: ---

Environment:

Vmware ESXi 6.5.0

vmxnet3 bind information:

Network devices using DPDK-compatible driver
============================================
0000:03:00.0 'VMXNET3 Ethernet Controller' drv=igb_uio unused=uio_pci_generic 0000:0b:00.0 'VMXNET3 Ethernet Controller' drv=igb_uio unused=uio_pci_generic

I changed vmxnet3_recv_pkts function to use rte_pktmbuf_dump dump all the mbuf pakcet received。

I changed vmxnet3_recv_pkts like this:

+ int i;

........

rcd_done:
+ for (i = 0; i < nb_rx; i++) {
+ struct rte_mbuf *m = rx_pkts[i];
+ rte_pktmbuf_dump(stdout, m, m->pkt_len);
+ }

Then I run our program and redirect the dump information to a file. Same time, I used ping6 to send icmp6 ns packet in another virtual machine。

After awhile I greped icmp6 ns packet type from dumped file，but got none packet dump information.

After that, I binded vmxnet3 to kernel driver, and setted ipv6 address，this time the interface can received icmp6 ns packet.

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