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Resolve Issue #75: virtio-net: Speed and Duplex documentation mistakes

Should the TC accept changes listed in the description to resolve issue 75, for inclusion in specification version(s) "virtio-v1.2-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 #75: virtio-net: Speed and Duplex documentation mistakes
The spec says that the duplex field has the value 0x00 for full duplex and 0x01 for half duplex, however the current implementations in QEMU and the virtio Linux driver use the values the other way around. DUPLEX_FULL is defined as 1 and DUPLEX_HALF is defined as 0. These values are put into the field if the corresponding config value (duplex=full/half) is found.

Also, when describing the possible values of the speed config field, the maximum value and the value for unknown speed are listed as "0x7ffffffff" and "0xfffffffff" respectively. They both have an extraneous "f" nibble, as they wouldn't fit into a 32-bit field this way.

Proposal ("[PATCH] virtio-net: fix speed, duplex") can be found at:

The TC accepts the following proposed changes to the specification:

The TC agrees to include the above change(s) in specification version(s) "virtio-v1.2-cs01", and future versions of the


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 [ ]  Yes
 [ ]  No
 [ ]  Abstain
Opening:   Tuesday, 31 August 2021 @ 04:45 pm EDT
Closing:   Tuesday, 7 September 2021 @ 04:45 pm EDT
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 1
Eligible members who have voted: 6 of 8 75%
Eligible members who have abstained: 1 of 8 13%
Eligible members who have not voted: 1 of 8 13%

Voting Details

Voter Company VoteReference Document and/or Comment
Enrico Granata
Google Inc.
Halil Pasic
Matti Moell
OpenSynergy GmbH
Mihai Carabas
Cornelia Huck
Red Hat
Michael S. Tsirkin
Red Hat
Stefan Hajnoczi
Red Hat
Jan Kiszka
Siemens AG