VDU CPU Requirements
| Capability Name | Capability Value | Generic Capability | Descriptiopn |
|---|---|---|---|
cpuModelSpecificationBinding | strictBinding equalOrBetterBinding |  | VDUs may be developed, compiled, optimized or validated on particular CPU models. Some deployments may wish to permit the VDU to be deployed on a platform with the specified CPU only, or with an alternative CPU with the same architecture, instruction set, and if specified, instruction set extensions, or with a CPU of equivalent or greater capability. |
instructionSetRequirements | aes, sse, avx, cat, cmt, mbm, ddio, smt, rdrand, etc etc | | Long list of instruction set extensions. |
simultaneousMultiThreading | Enabled disabled | | The use of Simultaneous Multi-Threading HW is an efficient way to increase the compute capacity of a platform. SMT HW threads share some CPU core resources. In some VDU implementations, it may be necessary to very explicitly control the HW thread allocation on a platform. This could be to help ensure locality in data caches or as a mechanism to enhance determinism |
hypervisorConfiguration | HPET memoryCompaction kernelSamepageMerging | | Long list: High Precision Event Timer configuration, memory compaction, kernel samepage merging, etc. |
computeRas | pciDetectedAndCorrectedErrors pciDetectedAndUncorrectedErrors | | Reliability, Availability, Serviceability (RAS) Long list of values: pciDetectedAndCorrectedErrors, pciDetectedAndUncorrectedErrors |
cpuModel | List of model identifiers | The CPU model for which the VDU has been developed, compiled for, optimized on, validated on or preferred for some reason. | |
directIoAccessToCache | Values – TBD | Descriptions related to cache functions – TBD | |
accelerator | Values – TBD | Descriptions related to accelerator functions – TBD | |
measuredLaunchEnvironment | Values – TBD | Descriptions related to boot environment functions – TBD | |
secureEnclave | Values – TBD | Descriptions related to secure region functions – TBD | |
numVirtualCpu | 1-N | Number of virtual CPUs | |
virtualCpuClock | 0-N | Minimum virtual CPU clock rate (e.g. in MHz). The cardinality can be 0 during the allocation request, if no particular value is requested. | |
logicalCpuPinningPolicy | dedicated shared | Determines if CPUs from the host platform should be committed to the VDU or shared between VDUs. | |
logicalCpuThreadPinningPolicy | require isolate prefer | Determines the manner in which CPU (HW) threads are allocated to VDUs. Require means CPU (HW) thread siblings should be allocated Isolate means allocate CPU (HW) threads from different execution units. Prefer means ideally allocate CPU HW threads from the same physical execution units but if not available, continue with allocation. |
VDU Memory Requirements
| Capability Name | Capability Value | Descriptiopn |
|---|---|---|
attributeReference | vnfd à vdu à virtualComputeDesc à virtualMemory à vduMemRequirements | Assuming the registry entry maps to an attribute the IFA011 or IFA014 specification, the value should give the reader an explicit (ideally fully qualified) reference to that attribute. |
schemaVersion | Version identifier for the schema | |
schemaSelector | Identifier for the particular schema to use. | |
memoryPageSize | ANY, 4KB, 2MB, 1GB | Memory page size |
numberOfPages | 0..N | Number of pages of this specific page size. Note, The size of memory requested in all instances of the vduMemRequirements must be less than or equal to the virtualMemSize attribute of the virtualMemoryData information element. |
memoryAllocationPolicy | strictLocalAffinity preferredLocalAffinity | Strict Local (to node) Affinity or Preferred local (to node) affinity |
memoryType | Type of memory | |
memorySpeed | Agreed unit of memory speed | |
memoryRas | ECC, SDDC, thermalThrottling, demandAndPatrolScrubbing | Long list of memory technologies |
memoryBandwidth | 0..N | Agreed unit of memory bandwidth where 0 is unspecified. |
processorCacheAllocationType | Values – TBD | Agreed type of processor cache allocation |
processorCacheAllocationSize | 0..N | Agreed unit of processor cach |
VDU Storage Requirements
| Capability Name | Capability Value | Descriptiopn |
|---|---|---|
storageIops | 0..N | Required storage characteristics (e.g. speed), including Key Quality Indicators (KQIs) for performance and reliability/availability |
storageResilencyMechanism | Erasure tripleReplication | Erasure code based back-end, triple replication based back-end for ensuring data resiliency. |
Logical Node Compute Requirements
| Capability Name | Capability Value | Descriptiopn |
|---|---|---|
numberCpu | 0..N | Number of CPU cores for this logical node. The cumulative number of CPU requests per node must equal the VDU level numVirtualCpu requirement. |
Logical Node Memory Requirements
| Capability Name | Capability Value | Descriptiopn |
|---|---|---|
localNumaMemorySize | 0..N | The amount of memory that needs to be collocated with this specific logical (NUMA) node. |
Logical Node i/O Requirements
| Capability Name | Capability Value | Descriptiopn |
|---|---|---|
pciVendorId | PCI-SIG vendor ID for the device | |
pciDeviceId | PCI-SIG device ID for the device | |
pciNumDevices | Number of PCI devices required. | |
pciAddress | Geographic location of the PCI device via the standard PCI-SIG addressing model of Domain:Bus:device:function | |
pciDeviceLocalToNumaNode | required notRequired | Determines if I/O device affinity is required. |
Network Interface Requirements
| Capability Name | Capability Value | Description |
|---|---|---|
nicFeature | LSO, LRO, RSS, RDMA | Long list of NIC related items such as LSO, LRO, RSS, RDMA, etc. |
dataProcessingAccelerationLibray | Dpdk_Version | Name and version of the data processing acceleration library required. Orchestration can match any NIC that is known to be compatible with the specified library. |
interfaceType | Virtio, PCI-Passthrough, SR-IOV, E1000, RTL8139, PCNET | Network interface type |
vendorSpecificNicFeature | TBA | List of vendor specific NIC related items. |