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.
