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 <tho...@monjalon.net> Sent: Wednesday, May 6, 2020 3:05 PM To: Liwu Liu <liwu...@fortinet.com> Cc: users@dpdk.org; er...@mellanox.com; kir...@mellanox.com; rasl...@mellanox.com; as...@mellanox.com 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?