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Diffstat (limited to 'src/plugins/rdma/rdma_doc.md')
| -rw-r--r-- | src/plugins/rdma/rdma_doc.md | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/plugins/rdma/rdma_doc.md b/src/plugins/rdma/rdma_doc.md index e41839eb595..3c79f9aefd3 100644 --- a/src/plugins/rdma/rdma_doc.md +++ b/src/plugins/rdma/rdma_doc.md @@ -49,3 +49,22 @@ It should work in containers as long as: - the `ib_uverbs` module is loaded - the device nodes `/dev/infiniband/uverbs[0-9]+` are usable from the container (but see [security considerations](#Security considerations)) + +### SR-IOV VFs support +It should work on SR-IOV VFs the same way it does with PFs. Because of VFs +security containment features, make sure the MAC address of the rdma VPP +interface matches the MAC address assigned to the underlying VF. +For example: +``` +host# echo 1 > /sys/class/infiniband/mlx5_0/device/sriov_numvfs +host# ip l set dev enp94s0f0 vf 0 mac 92:5d:f5:df:b1:6f spoof on trust off +host# ip l set dev enp94s0f2 up +vpp# create int rdma host-if enp94s0f2 name rdma-0 +vpp# set int mac address rdma-0 92:5d:f5:df:b1:6f +``` +If you plan to use L2 features such as switching, make sure the underlying +VF is configured in trusted mode and spoof-checking is disabled (of course, be +aware of the [security considerations](#Security considerations)): +``` +host# ip l set dev enp94s0f0 vf 0 spoof off trust on +``` |