Bug 702228 - RFE: Multiqueue virtio-net support in libvirt
Summary: RFE: Multiqueue virtio-net support in libvirt
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: libvirt
Version: 6.3
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Michal Privoznik
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-05-05 06:27 UTC by jason wang
Modified: 2011-11-10 21:07 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Enhancement
Doc Text:
Clone Of:
Environment:
Last Closed: 2011-11-10 21:07:58 UTC
Target Upstream Version:

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Description jason wang 2011-05-05 06:27:59 UTC 
Description of problem:
The multiqueue virtio-net features was expected to be added in 6.3, so need the libvirt support for this.

Two steps many need:
1) Setup the file descriptors for the backend (tap/macvtap) of a mutiqueue capable device

Only macvtap support multiqueue now and it was implemented by opening the same tap device many times. TAP does not have multiqueue support but would be added in the future. But the API used by macvtap could not used, new ioctl() maybe added. To keep the API compatible, the same ioctl() maybe added to macvtap to create new queue.

2) Pass the many file descriptors to qemu

The cli is not determined yet, but libvirt need to have a way to pass many fds to a netdev of qemu.

Version-Release number of selected component (if applicable):

Possibly 6.3

How reproducible:


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