Discussion of the implementations of VIRTIO specification
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From: Max Gurtovoy <mgurtovoy@nvidia.com>
To: virtio-comment@lists.oasis-open.org, mst@redhat.com,
	cohuck@redhat.com, virtio-dev@lists.oasis-open.org,
	jasowang@redhat.com
Cc: parav@nvidia.com, shahafs@nvidia.com, oren@nvidia.com,
	stefanha@redhat.com, Max Gurtovoy <mgurtovoy@nvidia.com>
Subject: [virtio-comment] [PATCH v2 2/4] virtio-blk: add support for VIRTIO_F_ADMIN_VQ
Date: Mon, 24 Jan 2022 11:39:16 +0200	[thread overview]
Message-ID: <20220124093918.34371-3-mgurtovoy@nvidia.com> (raw)
In-Reply-To: <20220124093918.34371-1-mgurtovoy@nvidia.com>

Set the relevant index in case of VIRTIO_F_ADMIN_VQ negotiation.

Reviewed-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com>
---
 content.tex | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/content.tex b/content.tex
index c524fab..f5f95fb 100644
--- a/content.tex
+++ b/content.tex
@@ -4517,10 +4517,19 @@ \subsection{Device ID}\label{sec:Device Types / Block Device / Device ID}
   2
 
 \subsection{Virtqueues}\label{sec:Device Types / Block Device / Virtqueues}
+ if VIRTIO_F_ADMIN_VQ is not negotiated, the request queues layout is as follows:
 \begin{description}
 \item[0] requestq1
 \item[\ldots]
 \item[N-1] requestqN
+\end{description}
+
+ If VIRTIO_F_ADMIN_VQ is negotiated, the queues layout is as follows:
+\begin{description}
+\item[0] requestq1
+\item[\ldots]
+\item[N-1] requestqN
+\item[N] adminq
 \end{description}
 
  N=1 if VIRTIO_BLK_F_MQ is not negotiated, otherwise N is set by
@@ -4589,7 +4598,7 @@ \subsection{Device configuration layout}\label{sec:Device Types / Block Device /
 bits as indicated above.
 
 The field \field{num_queues} only exists if VIRTIO_BLK_F_MQ is set. This field specifies
-the number of queues.
+the number of request queues. This field doesn't account admin virtqueue.
 
 The parameters in the configuration space of the device \field{max_discard_sectors}
 \field{discard_sector_alignment} are expressed in 512-byte units if the
-- 
2.21.0


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  parent reply	other threads:[~2022-01-24  9:39 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-24  9:39 [PATCH v2 0/4] VIRTIO: Provision maximum MSI-X vectors for a VF Max Gurtovoy
2022-01-24  9:39 ` [PATCH v2 1/4] Add virtio Admin Virtqueue Max Gurtovoy
2022-01-26 14:40   ` Michael S. Tsirkin
2022-01-26 14:54     ` [virtio-comment] " Max Gurtovoy
2022-01-26 15:03       ` Michael S. Tsirkin
2022-01-26 15:16         ` [virtio-comment] " Max Gurtovoy
2022-01-27  3:56         ` Parav Pandit
2022-01-27  3:55     ` Parav Pandit
2022-01-27  3:56       ` Jason Wang
2022-01-28 12:14   ` [virtio-comment] " Cornelia Huck
2022-01-28 12:47     ` Michael S. Tsirkin
2022-01-28 15:49       ` [virtio-comment] " Cornelia Huck
2022-01-28 15:52         ` Michael S. Tsirkin
2022-01-28 16:14           ` [virtio-dev] " Cornelia Huck
2022-01-28 16:16             ` Michael S. Tsirkin
2022-01-28 16:23               ` [virtio-dev] " Cornelia Huck
2022-01-29  3:53           ` Jason Wang
2022-01-30  9:13             ` Max Gurtovoy
2022-01-30  9:40               ` Michael S. Tsirkin
2022-01-30  9:56                 ` Max Gurtovoy
2022-01-30 14:41                   ` Michael S. Tsirkin
2022-01-30 15:12                     ` Max Gurtovoy
2022-01-30 15:30                       ` Michael S. Tsirkin
2022-01-30 18:23                         ` [virtio-comment] " Max Gurtovoy
2022-01-30 21:15                           ` Michael S. Tsirkin
2022-01-31  9:16                         ` [virtio-dev] " Cornelia Huck
2022-01-31 13:40                           ` Michael S. Tsirkin
2022-01-31 14:26                             ` [virtio-comment] " Cornelia Huck
2022-01-31 14:52                               ` Michael S. Tsirkin
2022-01-31 15:48                                 ` [virtio-dev] " Cornelia Huck
2022-01-31 16:00                                   ` Michael S. Tsirkin
2022-01-31 16:12                                 ` Halil Pasic
2022-01-31 17:10                                   ` [virtio-dev] " Cornelia Huck
2022-01-31 17:22                                     ` Michael S. Tsirkin
2022-02-01 11:53                                     ` [virtio-dev] " Halil Pasic
2022-02-01 17:01                                       ` Cornelia Huck
2022-02-01 18:34                                         ` Michael S. Tsirkin
2022-01-31 15:47                           ` Halil Pasic
2022-01-31 16:01                             ` Michael S. Tsirkin
2022-01-31 16:12                             ` Cornelia Huck
2022-02-09  2:27                         ` Jason Wang
2022-02-09  7:46                           ` Michael S. Tsirkin
2022-01-30  9:39             ` Michael S. Tsirkin
2022-01-30 11:21     ` [virtio-comment] " Max Gurtovoy
2022-01-30 14:37       ` Michael S. Tsirkin
2022-01-24  9:39 ` Max Gurtovoy [this message]
2022-01-24  9:39 ` [PATCH v2 3/4] virtio-net: add support for VIRTIO_F_ADMIN_VQ Max Gurtovoy
2022-01-24  9:39 ` [PATCH v2 4/4] Add support for MSI-X vectors configuration for PCI VFs Max Gurtovoy
2022-01-25 11:53   ` Michael S. Tsirkin
2022-01-26 13:03     ` Parav Pandit
2022-01-26 14:08       ` [virtio-comment] " Michael S. Tsirkin
2022-01-27  3:40         ` Parav Pandit
2022-01-27 12:39           ` Michael S. Tsirkin
2022-01-27 14:16             ` Parav Pandit
2022-01-27 17:28               ` Michael S. Tsirkin
2022-01-27  3:36   ` Jason Wang
2022-01-27  5:22     ` Parav Pandit
2022-01-28  3:23       ` [virtio-comment] " Jason Wang
2022-01-28  3:30         ` Parav Pandit
2022-01-28  3:35           ` Jason Wang
2022-01-28  3:45             ` Parav Pandit

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