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* Update nova-specs from branch 'master' to 1fd8111c3abab5078823b5481c5f580fedaddc96 - Merge "Integration With Off-path Network Backends" - Integration With Off-path Network Backends https://blueprints.launchpad.net/nova/+spec/integration-with-off-path-network-backends Off-path SmartNIC DPUs introduce an architecture change where network agents responsible for NIC switch configuration and representor interface plugging run on a separate SoC with its own CPU, memory and that runs a separate OS kernel. The side-effect of that is that hypervisor hostnames no longer match SmartNIC DPU hostnames which are seen by ovs-vswitchd and OVN agents while the existing port binding code relies on that. The goal of this specification is to introduce changes necessary to extend the existing hardware offload code to cope with the hostname mismatch and related design challenges while reusing the rest of the code. To do that, PCI(e) add-in card tracking is introduced for boards with unique serial numbers so that it can be used to determine the correct hostname of a SmartNIC DPU which is responsible for a particular VF. Additionally, more information is suggested to be passed in the "binding:profile" during a port update to facilitate representor port plugging. Change-Id: I07ef52769da72cde8867f996111b7df4a80e4d79
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