Hi Team,
I did some test today for "trusted off" vfNIC.
We use to enable (multi-unicast) promiscuous mode for vfNIC---it has no use
if the vfNIC is not in trusted (super user) mode. But it masks out secondary
mac address addition.
IF I turn off promiscuous mode for vfNCI, adding secondary mac then works.
+#if 1
+ struct rte_ether_addr addr = { .addr_bytes = "\x33\x33\xff\x00\x00\x01",};
<==when set this
+ rte_eth_dev_mac_addr_add(portid, &addr, 0);
+#else
+
rte_eth_promiscuous_enable(portid); <====we need to avoid this
Best,
Liwu
-----Original Message-----
From: Thomas Monjalon <[email protected]>
Sent: Wednesday, May 6, 2020 3:05 PM
To: Liwu Liu <[email protected]>
Cc: [email protected]; [email protected]; [email protected];
[email protected]; [email protected]
Subject: Re: [dpdk-users] mlx5 PMD fails to receive certain icmpv6 multicast
26/03/2020 22:11, Thomas Monjalon:
> 06/03/2020 01:45, Liwu Liu:
> > Hi Team,
> >
> > I am using the mlx5/100G in KVM guest. The host shows this PCI vfNIC is
> > provisioned to the guest:
> > "17:01.1 Ethernet controller: Mellanox Technologies MT27800 Family
> > [ConnectX-5 Virtual Function]"
> >
> > I am using DPDK 19.11 with kind of standard configurations, and when DPDK
> > application runs I still have the kernel mlx5e net device present. I have
> > both promiscuous and all-multicast turned on.
> >
> > It works fine for IPV4, but for IPV6 it fails. It can receive packets
> > destined to 33:33:00:00:00:02 (IPV6 Router solicitation), but cannot
> > receive packets destined to 33:33:ff:00:00:01 (IPV6 neighbor solicitation
> > for some address).
> >
> > But if I avoid DPDK, directly use the OFED-4.6 based kernel driver,
> > everything works fine as expected.
> >
> > I am thinking there is some mismatch happened for MLX5 PMD. Please give
> > some advice/hints.
>
> Adding Mellanox engineers in Cc list for help.
Any update to share please?
