在 2022/2/10 下午7:03, Xuan Zhuo 写道:
This patch defines some requirements for virtio-net to support reset
queues.
Signed-off-by: Xuan Zhuo <[email protected]>
---
conformance.tex | 1 +
content.tex | 16 ++++++++++++++++
2 files changed, 17 insertions(+)
diff --git a/conformance.tex b/conformance.tex
index 42f8537..3656da5 100644
--- a/conformance.tex
+++ b/conformance.tex
@@ -396,6 +396,7 @@ \section{Conformance Targets}\label{sec:Conformance /
Conformance Targets}
\item \ref{devicenormative:Device Types / Network Device / Device Operation /
Packet Transmission}
\item \ref{devicenormative:Device Types / Network Device / Device Operation /
Setting Up Receive Buffers}
\item \ref{devicenormative:Device Types / Network Device / Device Operation /
Processing of Incoming Packets}
+\item \ref{devicenormative:Device Types / Network Device / Device Operation /
Reset Virtqueue}
\item \ref{devicenormative:Device Types / Network Device / Device Operation /
Control Virtqueue / Packet Receive Filtering}
\item \ref{devicenormative:Device Types / Network Device / Device Operation /
Control Virtqueue / Setting MAC Address Filtering}
\item \ref{devicenormative:Device Types / Network Device / Device Operation /
Control Virtqueue / Gratuitous Packet Sending}
diff --git a/content.tex b/content.tex
index c6f116c..63dacb0 100644
--- a/content.tex
+++ b/content.tex
@@ -4000,6 +4000,22 @@ \subsubsection{Processing of Incoming
Packets}\label{sec:Device Types / Network
#define VIRTIO_NET_HASH_REPORT_UDPv6_EX 9
\end{lstlisting}
+\subsubsection{Reset Virtqueue}\label{sec:Device Types / Network Device / Device Operation / Reset Virtqueue}
+
+The receive and transmission virtqueues and the control virtqueue can implement
+reset based on Virtqueue Reset (See \ref{sec:Basic Facilities of a Virtio
Device / Virtqueues / Virtqueue Reset}).
+
+\devicenormative{\paragraph}{Gratuitous Packet Sending}{Device Types / Network
Device / Device Operation / Reset Virtqueue}
s/"Gratuitous Packet Sending"/"Reset Virtqueue"/ ?
+
+After automatic receive steering or RSS receive steering has completed the
+selection of the queue, if the destination receive queue is in reset state,
+the device SHOULD re-select a different random queue.
+
+After RSS receive steering has completed the selection of the queue, if the
+destination receive queue is in reset state, the device can drop the packet.
I guess what we really mean is to use "MUST" here? And this paragraph
(can drop) seems conflict with previous one (SHOULD re-select)?
I wonder if it's better to add stuffs simply in the device normative in
automatic steering and RSS instead of using a dedicated subsection here.
Thanks
+
+If all receive queues are in reset state, the device can drop the packet.
+
\subsubsection{Control Virtqueue}\label{sec:Device Types / Network Device /
Device Operation / Control Virtqueue}
The driver uses the control virtqueue (if VIRTIO_NET_F_CTRL_VQ is
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