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Resolve Issue #20: virtio network device: support for RSC compatibility with WHCK requirements

Should the TC accept changes listed in the description to resolve issue 20, for inclusion in specification version(s) "virtio-v1.1-cs01", and future versions of the specification?

Please vote Yes if you agree with all of the following.
If you disagree, please vote No.
If you don't have an opinion, please vote Abstain.

I move that:
The TC agrees to resolve the following specification issue:
Issue #20: virtio network device: support for RSC compatibility with WHCK requirements
Currently virtio network device supports reassembly of received TCP segments, controlled by feature bits VIRTIO_NET_F_GUEST_TSO4 and VIRTIO_NET_F_GUEST_TSO6. This feature has a gap with Windows hardware compatibility requirements. In addition to packet reassembly it is required to coalesce duplicate ack packets and report number of coalesced segments and number of duplicate acks in the metadata of reported packet.
Suggested extension of network device specification includes additional feature bit (extended RSC support) and additional flag bit in virtio network packet header (extended RSC info) which allows to deliver required information in existing header's fields 'csum_start' and 'csum_offset'


The TC accepts the following proposed changes to the specification:

The TC agrees to include the above change(s) in specification version(s) "virtio-v1.1-cs01", and future versions of the


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 [ ]  Yes
 [ ]  No
 [ ]  Abstain
Opening:   Monday, 5 November 2018 @ 12:45 pm EST
Closing:   Monday, 12 November 2018 @ 12:45 pm EST
Group:   OASIS Virtual I/O Device (VIRTIO) TC
Ballot has closed.

Referenced Items
Name Type Date Action

Voting Details

Voting Summary

Options with highest number of votes are bold

Option # Votes % of Total
Yes 6 100%
No 0 0%
Abstain 0
Eligible members who have voted: 6 of 6 100%
Eligible members who have abstained: 0 of 6 0%
Eligible members who have not voted: 0 of 6 0%

Voting Details

Voter Company VoteReference Document and/or Comment
Halil Pasic
Mihai Carabas
Michael S. Tsirkin
Red Hat
Stefan Hajnoczi
Red Hat
Cornelia Huck
Red Hat
Jan Kiszka
Siemens AG