From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Sender: List-Post: List-Help: List-Unsubscribe: List-Subscribe: Received: from lists.oasis-open.org (oasis-open.org [10.110.1.242]) by lists.oasis-open.org (Postfix) with ESMTP id D1CB69863F0 for ; Mon, 27 Feb 2023 08:45:35 +0000 (UTC) From: Cornelia Huck In-Reply-To: <20230223054624.168042-1-parav@nvidia.com> References: <20230223054624.168042-1-parav@nvidia.com> Date: Mon, 27 Feb 2023 09:45:31 +0100 Message-ID: <87a60z5wes.fsf@redhat.com> MIME-Version: 1.0 Subject: [virtio-comment] Re: [PATCH 0/3] Rename queue index to queue number Content-Type: text/plain To: Parav Pandit , mst@redhat.com, virtio-dev@lists.oasis-open.org Cc: virtio-comment@lists.oasis-open.org, shahafs@nvidia.com, Parav Pandit List-ID: On Thu, Feb 23 2023, Parav Pandit wrote: > 1. Currently, virtqueue is identified between driver and device > interchangeably using either number of index terminology. > > 2. Between PCI and MMIO transport the queue size (depth) is > defined as queue_size and QueueNum respectively. > > To avoid confusion and to have consistency, unify them to use as Number. > > Solution: > Use virtqueue number description, and rename MMIO register as QueueSize. > > Patch summary: > patch-1 renames index to number for pci transport > patch-2 renames mmio register from Num to Size > patch-3 renames index to number for mmio transport > > Please review. > This series fixes the issue [1]. > > This series is on top of [2]. > > [1] https://github.com/oasis-tcs/virtio-spec/issues/163 > [2] https://lists.oasis-open.org/archives/virtio-dev/202302/msg00527.html > > --- > Cornelia: > I was not sure about ccw for vq_config_block and vq_info_block structures > index field refers to the queue number or not. > Can you please clarify? > > If it vqn, I will send v1 by replacing index to vqn to be > consistent with other part of the spec which also uses vqn. The vq_*_block structures use "index" for the vq index/number and "num" for the number of buffers (queue size). I'm wondering what terminology we should standardize on. For the size of the queue, we have queue_size, QueueNum, and num. Calling it some variation of "queue size" and mentioning that it refers to the number of buffers makes sense. For the vq index/number, I'm not that sure that "virtqueue number" is better that "virtqueue index" -- actually, I'd prefer the latter. We'd need some renaming either way. This publicly archived list offers a means to provide input to the OASIS Virtual I/O Device (VIRTIO) TC. In order to verify user consent to the Feedback License terms and to minimize spam in the list archive, subscription is required before posting. Subscribe: virtio-comment-subscribe@lists.oasis-open.org Unsubscribe: virtio-comment-unsubscribe@lists.oasis-open.org List help: virtio-comment-help@lists.oasis-open.org List archive: https://lists.oasis-open.org/archives/virtio-comment/ Feedback License: https://www.oasis-open.org/who/ipr/feedback_license.pdf List Guidelines: https://www.oasis-open.org/policies-guidelines/mailing-lists Committee: https://www.oasis-open.org/committees/virtio/ Join OASIS: https://www.oasis-open.org/join/