Introduce vq index and its range so that subsequent patches can refer to it.
Fixes: https://github.com/oasis-tcs/virtio-spec/issues/163 Reviewed-by: Halil Pasic <pa...@linux.ibm.com> Signed-off-by: Parav Pandit <pa...@nvidia.com> --- changelog: v15->v16: - rewrote for better reading v12->v13: - avoid virtqueue -> vq abbreviation - removed Cornelia's reviewed-by due to vq abbreviation change v11->v12: - renamed 'number' to 'index' v9->v10: - added braces around vq number wording - added vqn as another term for vq number v8->v9: - added inclusive when describing the vq number range - skipped comment to put virtqueue number wording first because we prefer to use shorter vq number as much as possible v5->v6: - moved description close to introduction, it was in middle of queue data transfer description v2->v3: - new patch --- content.tex | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/content.tex b/content.tex index cff548a..9b694f2 100644 --- a/content.tex +++ b/content.tex @@ -298,6 +298,10 @@ \section{Virtqueues}\label{sec:Basic Facilities of a Virtio Device / Virtqueues} virtqueues\footnote{For example, the simplest network device has one virtqueue for transmit and one for receive.}. +A virtio device can have maximum of 65536 virtqueues. Each virtqueue is +identified by a virtqueue index. A virtqueue index has a value in the +range of 0 to 65535. + Driver makes requests available to device by adding an available buffer to the queue, i.e., adding a buffer describing the request to a virtqueue, and optionally triggering -- 2.26.2 --------------------------------------------------------------------- To unsubscribe, e-mail: virtio-dev-unsubscr...@lists.oasis-open.org For additional commands, e-mail: virtio-dev-h...@lists.oasis-open.org
