DDA/SR-IOV support on Z840 Workstation

[omasutani]

 * continued old archived thread :

http://workstations215.rssing.com/browser.php?indx=58506690&item=326

I would like to try DDA on Windows Server 2016 on Z840.

I know supporting DDA is very limited even in server hardware.

Supporting SR-IOV on BIOS/UEFI seems to be a key to support DDA.

Does anyone suceed or adivice about SR-IOV support for workstation ?

I confirmed :

- VT-d enabled on BIOS

- VT-x enabled on BIOS

- Hyperthreading enabled on BIOS

- PCIe ACS enabled on BIOS

- TPM is updated to 2.0

- BIOS/firmware/driver is latest from HP support

- Windows Server 2016

And I checked support for DDA : 

- DDA check PowerShell reports all of device doesnt support DDA

 https://github.com/BenjaminArmstrong/Hyper-V-PowerShell/blob/master/DDA/survey-dda.ps1

- Dismounting GPU fail 

 reports it needs OS control of PCIExpress

- SR-IOV check reports all non support

  Get-VMSwitch | fl *iov*

[DGroves]

as far as i know, the older HP z series hardware do not support SR-IOV so you will not be able to emulate multiple copies of a pci-e card in these systems  the new HP z8/z4 series workstations running linux might have support for this

for those currious about this please read the link below

https://blog.scottlowe.org/2009/12/02/what-is-sr-iov/

[omasutani]

Hi I undestood it doesn't have SR-IOV on Z840.

I actually need DDA for Hyper-V however basic requirement for DDA,SR-IOV or even RemoteFX aren't covered by HP workstation.

MS blog with some comment threads reveals DDA support is hard for workstations.

https://blogs.technet.microsoft.com/virtualization/2015/11/23/discrete-device-assignment-gpus/

We can eaily find SR-IOV support for Proliant with instruction on HPE support pages :  

https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-c03514877&lang=en-uk&cc=uk

I hope some BIOS / firmware modifications for workstation enable DDA support in the furure 🙂