From: Parav Pandit <parav@nvidia.com>
To: <mst@redhat.com>, <virtio-dev@lists.oasis-open.org>, <cohuck@redhat.com>
Cc: <sgarzare@redhat.com>, <pasic@linux.ibm.com>,
<virtio-comment@lists.oasis-open.org>, <shahafs@nvidia.com>,
Parav Pandit <parav@nvidia.com>
Subject: [virtio-dev] [PATCH v12 06/10] transport-mmio: Avoid referring to zero based index
Date: Wed, 5 Apr 2023 04:06:53 +0300 [thread overview]
Message-ID: <20230405010657.612529-7-parav@nvidia.com> (raw)
In-Reply-To: <20230405010657.612529-1-parav@nvidia.com>
VQ range is already described in the first patch in basic virtqueue
section. Hence remove the duplicate reference to it.
Fixes: https://github.com/oasis-tcs/virtio-spec/issues/163
Signed-off-by: Parav Pandit <parav@nvidia.com>
---
changelog:
v11->v12:
- remove changes related to 'vq number'
v8->v9:
- added 'by' at two places
- replaced 'queue number' with 'vq number'
v6->v7:
- remove text around first vq as it is already covered in the basic
virtqueues facility section
---
transport-mmio.tex | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/transport-mmio.tex b/transport-mmio.tex
index 164e640..da58612 100644
--- a/transport-mmio.tex
+++ b/transport-mmio.tex
@@ -113,8 +113,7 @@ \subsection{MMIO Device Register Layout}\label{sec:Virtio Transport Options / Vi
following operations on \field{QueueSizeMax},
\field{QueueSize}, \field{QueueReady},
\field{QueueDescLow}, \field{QueueDescHigh}, \field{QueueDriverlLow}, \field{QueueDriverHigh},
- \field{QueueDeviceLow}, \field{QueueDeviceHigh} and \field{QueueReset} apply to. The index
- number of the first queue is zero (0x0).
+ \field{QueueDeviceLow}, \field{QueueDeviceHigh} and \field{QueueReset} apply to.
}
\hline
\mmioreg{QueueSizeMax}{Maximum virtual queue size}{0x034}{R}{%
@@ -363,8 +362,7 @@ \subsubsection{Virtqueue Configuration}\label{sec:Virtio Transport Options / Vir
The driver will typically initialize the virtual queue in the following way:
\begin{enumerate}
-\item Select the queue writing its index (first queue is 0) to
- \field{QueueSel}.
+\item Select the queue by writing its index to \field{QueueSel}.
\item Check if the queue is not already in use: read \field{QueueReady},
and expect a returned value of zero (0x0).
@@ -474,9 +472,7 @@ \subsection{Legacy interface}\label{sec:Virtio Transport Options / Virtio Over M
Writing to this register selects the virtual queue that the
following operations on the \field{QueueSizeMax},
\field{QueueSize}, \field{QueueAlign}
- and \field{QueuePFN} registers apply to. The index
- number of the first queue is zero (0x0).
-.
+ and \field{QueuePFN} registers apply to.
}
\hline
\mmioreg{QueueSizeMax}{Maximum virtual queue size}{0x034}{R}{%
@@ -550,8 +546,7 @@ \subsection{Legacy interface}\label{sec:Virtio Transport Options / Virtio Over M
The virtual queue is configured as follows:
\begin{enumerate}
-\item Select the queue writing its index (first queue is 0) to
- \field{QueueSel}.
+\item Select the queue by writing its number to \field{QueueSel}.
\item Check if the queue is not already in use: read \field{QueuePFN},
expecting a returned value of zero (0x0).
--
2.26.2
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next prev parent reply other threads:[~2023-04-05 1:07 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-05 1:06 [virtio-dev] [PATCH v12 00/10] Rename queue number to queue index Parav Pandit
2023-04-05 1:06 ` [virtio-dev] [PATCH v12 01/10] content: Add vq index text Parav Pandit
2023-04-05 5:26 ` [virtio-dev] " Michael S. Tsirkin
2023-04-05 13:00 ` [virtio-dev] " Parav Pandit
2023-04-05 9:18 ` [virtio-dev] " Michael S. Tsirkin
2023-04-05 13:03 ` [virtio-dev] " Parav Pandit
2023-04-07 11:30 ` Michael S. Tsirkin
2023-04-07 15:34 ` Parav Pandit
2023-04-07 15:54 ` Michael S. Tsirkin
2023-04-05 1:06 ` [virtio-dev] [PATCH v12 02/10] content.tex Replace virtqueue number with index Parav Pandit
2023-04-05 9:46 ` [virtio-dev] " Cornelia Huck
2023-04-05 1:06 ` [virtio-dev] [PATCH v12 03/10] content: Rename confusing queue_notify_data and vqn names Parav Pandit
2023-04-05 5:22 ` [virtio-dev] " Michael S. Tsirkin
2023-04-05 13:20 ` [virtio-dev] " Parav Pandit
2023-04-10 13:25 ` [virtio-dev] " Michael S. Tsirkin
2023-04-05 5:30 ` Michael S. Tsirkin
2023-04-05 9:57 ` Cornelia Huck
2023-04-05 13:21 ` [virtio-dev] " Parav Pandit
2023-04-05 15:27 ` Halil Pasic
2023-04-05 15:58 ` Parav Pandit
2023-04-07 11:43 ` [virtio-dev] Re: [virtio-comment] " Michael S. Tsirkin
2023-04-11 8:56 ` Cornelia Huck
2023-04-11 13:35 ` [virtio-dev] " Parav Pandit
2023-04-17 3:18 ` [virtio-dev] " Halil Pasic
2023-04-17 7:04 ` Michael S. Tsirkin
2023-04-17 8:47 ` [virtio-dev] Participation (was: Re: [virtio-comment] RE: [virtio-dev] RE: [PATCH v12 03/10] content: Rename confusing queue_notify_data and vqn names) Cornelia Huck
2023-04-17 11:45 ` [virtio-dev] " Michael S. Tsirkin
2023-04-17 16:13 ` [virtio-dev] Re: [virtio-comment] RE: [virtio-dev] RE: [PATCH v12 03/10] content: Rename confusing queue_notify_data and vqn names Halil Pasic
2023-04-07 11:44 ` [virtio-dev] Re: [virtio-comment] " Michael S. Tsirkin
2023-04-05 1:06 ` [virtio-dev] [PATCH v12 04/10] transport-pci: Avoid first vq index reference Parav Pandit
2023-04-05 1:06 ` [virtio-dev] [PATCH v12 05/10] transport-mmio: Rename QueueNum register Parav Pandit
2023-04-05 1:06 ` Parav Pandit [this message]
2023-04-05 1:06 ` [virtio-dev] [PATCH v12 07/10] transport-ccw: Rename queue depth/size to other transports Parav Pandit
2023-04-05 1:06 ` [virtio-dev] [PATCH v12 08/10] transport-ccw: Refer to the vq by its index Parav Pandit
2023-04-05 1:06 ` [virtio-dev] [PATCH v12 09/10] virtio-net: Avoid duplicate receive queue example Parav Pandit
2023-04-05 1:06 ` [virtio-dev] [PATCH v12 10/10] virtio-net: Describe RSS using rss rq id Parav Pandit
2023-04-05 9:17 ` [virtio-dev] " Michael S. Tsirkin
2023-04-05 13:02 ` [virtio-dev] " Parav Pandit
2023-04-07 11:32 ` [virtio-dev] Re: [virtio-comment] " Michael S. Tsirkin
2023-04-05 5:32 ` [virtio-dev] Re: [PATCH v12 00/10] Rename queue number to queue index Michael S. Tsirkin
2023-04-05 13:11 ` [virtio-dev] " Parav Pandit
2023-04-05 9:20 ` [virtio-dev] " Michael S. Tsirkin
2023-04-05 13:05 ` [virtio-dev] " Parav Pandit
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