In-band management interface with user space datapath

A non-transitory machine-readable medium storing a program which when executed by at least one processing unit configures a hardware network interface card (NIC) of a gateway device of a datacenter, the program comprising sets of instructions for:

• configuring at least two single root input/output virtualization (SR-IOV) interfaces on the hardware NIC;
• binding a first one of the interfaces to a packet datapath executing on the gateway device, the packet datapath for processing a first set of packets sent between a set of host computers of the datacenter and devices outside the datacenter and sending the processed packets of the first set to the first interface of the hardware NIC;
• and
• binding a second one of the interfaces to a network stack executing on the gateway device, the network stack for (i) receiving a second set of packets from a set of applications executing on the gateway device and sending the packets of the second set to the second interface of the hardware NIC and (ii) receiving a third set of packets from the second interface of the hardware NIC and sending the packets of the third set to the set of applications.