On Tue, 22 Feb 2022 14:52:41 +0800, Xuan Zhuo <[email protected]> wrote: > This patch defines some requirements for virtio-net to support reset > queues.
Is there any problem with this? Thanks. > > Signed-off-by: Xuan Zhuo <[email protected]> > --- > content.tex | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/content.tex b/content.tex > index c6f116c..45751f4 100644 > --- a/content.tex > +++ b/content.tex > @@ -4337,6 +4337,10 @@ \subsubsection{Control Virtqueue}\label{sec:Device > Types / Network Device / Devi > \field{virtqueue_pairs} once it has placed the > VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET command in a used buffer. > > +If the destination receive queue is in reset state(See \ref{sec:Basic > Facilities of a Virtio Device / Virtqueues / Virtqueue Reset}), > +the device SHOULD re-select a different random queue. If all receive queues > are > +in reset state, the device MUST drop the packet. > + > \subparagraph{Legacy Interface: Automatic receive steering in multiqueue > mode}\label{sec:Device Types / Network Device / Device Operation / Control > Virtqueue / Automatic receive steering in multiqueue mode / Legacy Interface: > Automatic receive steering in multiqueue mode} > When using the legacy interface, transitional devices and drivers > MUST format \field{virtqueue_pairs} > @@ -4425,6 +4429,7 @@ \subsubsection{Control Virtqueue}\label{sec:Device > Types / Network Device / Devi > \item Calculate the hash of the packet as defined in \ref{sec:Device Types / > Network Device / Device Operation / Processing of Incoming Packets / Hash > calculation for incoming packets}. > \item If the device did not calculate the hash for the specific packet, the > device directs the packet to the receiveq specified by > \field{unclassified_queue} of virtio_net_rss_config structure (value of 0 > corresponds to receiveq1). > \item Apply \field{indirection_table_mask} to the calculated hash and use > the result as the index in the indirection table to get 0-based number of > destination receiveq (value of 0 corresponds to receiveq1). > +\item If the destination receive queue is in reset state(See \ref{sec:Basic > Facilities of a Virtio Device / Virtqueues / Virtqueue Reset}), the device > MUST drop the packet. > \end{itemize} > > \paragraph{Offloads State Configuration}\label{sec:Device Types / Network > Device / Device Operation / Control Virtqueue / Offloads State Configuration} > -- > 2.31.0 > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
