Re: [Qemu-devel] [PATCH v16 1/2] virtio-crypto: Add virtio crypto device specification

["Michael S. Tsirkin" <mst@redhat.com>]

On Fri, Feb 03, 2017 at 10:33:16AM +0000, Stefan Hajnoczi wrote:
> > +\begin{description}
> > +\item[0] dataq1
> > +\item[\ldots]
> > +\item[N-1] dataqN
> > +\item[N] controlq
> > +\end{description}
> > +
> > +N is set by \field{max_dataqueues}.
> > +
> > +\subsection{Feature bits}\label{sec:Device Types / Crypto Device / Feature bits}
> > +
> > +VIRTIO_CRYPTO_F_NON_SESSION_MODE (0) non-session mode is available.
> > +VIRTIO_CRYPTO_F_CIPHER_NON_SESSION_MODE (1) non-session mode is available for CIPHER service.
> > +VIRTIO_CRYPTO_F_HASH_NON_SESSION_MODE (2) non-session mode is available for HASH service.
> > +VIRTIO_CRYPTO_F_MAC_NON_SESSION_MODE (3) non-session mode is available for MAC service.
> > +VIRTIO_CRYPTO_F_AEAD_NON_SESSION_MODE (4) non-session mode is available for AEAD service.
> 
> Bits 1-4 require bit 0.  Is bit 0 necessary at all?  Or may bits 1-4 can
> be eliminated in favor of just bit 0.

Too late to change it as QEMU released a device with that feature.

-- 
MST