LinuxQuestions.org
Review your favorite Linux distribution.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Virtualization and Cloud
User Name
Password
Linux - Virtualization and Cloud This forum is for the discussion of all topics relating to Linux Virtualization and Linux Cloud platforms. Xen, KVM, OpenVZ, VirtualBox, VMware, Linux-VServer and all other Linux Virtualization platforms are welcome. OpenStack, CloudStack, ownCloud, Cloud Foundry, Eucalyptus, Nimbus, OpenNebula and all other Linux Cloud platforms are welcome. Note that questions relating solely to non-Linux OS's should be asked in the General forum.

Notices


Reply
  Search this Thread
Old 06-28-2020, 09:42 PM   #1
risonwung
LQ Newbie
 
Registered: May 2020
Posts: 3

Rep: Reputation: Disabled
SR-IOV howto?


I am trying to know how linux PCIE NIC SR-IOV work.
I am using a Unbuntu with Intel 82599 NIC as a host. Under NIC driver directory(ixgbe) in linux Kernel, there is a file named "ixgbe_sriov.c".
I know this file may drive to make some VFs which respectively show some PCIE devices to user.
My questions is "if i install another ubuntu as a guest OS on my host,what kind of NIC driver does the guest OS use? Still the 82599 ixbge driver?
Anybody know it?

Thanks

Last edited by risonwung; 06-28-2020 at 09:46 PM.
 
Old 06-30-2020, 06:07 AM   #2
berndbausch
Senior Member
 
Registered: Nov 2013
Location: Tokyo
Distribution: A few
Posts: 4,834

Rep: Reputation: 1435Reputation: 1435Reputation: 1435Reputation: 1435Reputation: 1435Reputation: 1435Reputation: 1435Reputation: 1435Reputation: 1435Reputation: 1435
I don't know specifically for Ubuntu or for this particular driver, but in principle yes, assuming you use the same kernel version, you should use the same driver and driver version on host and guest.

See also https://software.intel.com/content/w...linux-kvm.html (I did not really read this).
 
Old 07-05-2020, 08:07 PM   #3
risonwung
LQ Newbie
 
Registered: May 2020
Posts: 3

Original Poster
Rep: Reputation: Disabled
Thanks a lot, Berndbausch. But from the article linked here , it clearly point out that VF and PF in SR-IOV mod use different driver. To Intel 82599 card , for example, as a PF in host OS it use ixgbe drive while as VF in guset OS it use ixgbevf driver.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
SR-IOV drivers for 82576 and 82599 kris@sjc Linux - Kernel 1 10-19-2010 10:51 AM
SR-IOV drivers for 82576 and 82599 kris@sjc Linux - Virtualization and Cloud 1 09-29-2010 01:26 AM
SR-IOV drivers for 82576 and 82599 kris@sjc Red Hat 1 09-29-2010 12:26 AM
CentOS5.5 with SR-IOV ramanaG Linux - Virtualization and Cloud 0 07-14-2010 11:41 PM

LinuxQuestions.org > Forums > Linux Forums > Linux - Virtualization and Cloud

All times are GMT -5. The time now is 08:02 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration