On 6/5/22 06:15, A Monster wrote:
Is it possible to use the infiniband port for openstack networks without having to use the infiniband port as an ethernet port ?
In theory you could use Infiniband with IPoIB for API/RPC control plane, and possibly for tenant virtual networks using VXLAN. I think you must use Ethernet mode for provider networks or external provider networks, but I could be mistaken. As of Stein it was not possible to use Infiniband for bare metal nodes using Ironic [0] with DHCP and PXE boot. There may have been additional work done since, however I never saw completion of the dependencies to make this work, but it might be possible using config-drive rather than PXE boot and DHCP. I have worked with Mellanox to use some Infiniband-capable NICs (MLX-ConnectX-5) with ML2/OVS, but only in Ethernet mode. These cards can also be used with DPDK using the "mlx5_core" driver. -- Dan Sneddon | Senior Principal Software Engineer dsneddon@redhat.com | redhat.com/cloud dsneddon:irc | @dxs:twitter