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From: "Michael S. Tsirkin" <mst@redhat.com>
To: Halil Pasic <pasic@linux.ibm.com>
Cc: Cornelia Huck <cohuck@redhat.com>,
	Parav Pandit <parav@nvidia.com>,
	virtio-dev@lists.oasis-open.org,
	virtio-comment@lists.oasis-open.org, shahafs@nvidia.com
Subject: Re: [virtio-dev] Re: [virtio-comment] Re: [PATCH 0/3] Rename queue index to queue number
Date: Thu, 9 Mar 2023 11:53:34 -0500	[thread overview]
Message-ID: <20230309115110-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <20230309174650.7093f020.pasic@linux.ibm.com>

On Thu, Mar 09, 2023 at 05:46:50PM +0100, Halil Pasic wrote:
> To uniquely identify an element we need both the index (a value) and
> the array/table that is being indexed. And I believe this is what we
> need to improve on. I don't think calling indexes into the conceptual
> array of receive queues (or receive virtqueues) "index of the receive
> virtqueue", indexes into the conceptual array of virtqueues that belong
> to a certain device a "vq number", indexes into the descriptor table
> "descriptor keys", and indexes into the used rings "used ring element
> ids" would really help -- to make an attempt at using reduction ad
> absurdum ;)

Right.  I think Parav said he's converting everything to just refer
to "VQ number".


> 
> 
> > I feel there's less of a chance of a confusion between VQ size and
> > its number. But it's not a strong prefrence, RSS is relatively young
> > and it's the only incompatible user of index so far.
> 
> I don't understand why is RSS incompatible with "index".
> 
> Regards,
> Halil

It uses the word "index" in a way that is different from what you
suggest.

Anyway, both "number" and "index" require cleanup work, whoever
is going to do it gets to decide which way it will go.

-- 
MST


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WARNING: multiple messages have this Message-ID (diff)
From: "Michael S. Tsirkin" <mst@redhat.com>
To: Halil Pasic <pasic@linux.ibm.com>
Cc: Cornelia Huck <cohuck@redhat.com>,
	Parav Pandit <parav@nvidia.com>,
	virtio-dev@lists.oasis-open.org,
	virtio-comment@lists.oasis-open.org, shahafs@nvidia.com
Subject: [virtio-comment] Re: [virtio-dev] Re: [virtio-comment] Re: [PATCH 0/3] Rename queue index to queue number
Date: Thu, 9 Mar 2023 11:53:34 -0500	[thread overview]
Message-ID: <20230309115110-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <20230309174650.7093f020.pasic@linux.ibm.com>

On Thu, Mar 09, 2023 at 05:46:50PM +0100, Halil Pasic wrote:
> To uniquely identify an element we need both the index (a value) and
> the array/table that is being indexed. And I believe this is what we
> need to improve on. I don't think calling indexes into the conceptual
> array of receive queues (or receive virtqueues) "index of the receive
> virtqueue", indexes into the conceptual array of virtqueues that belong
> to a certain device a "vq number", indexes into the descriptor table
> "descriptor keys", and indexes into the used rings "used ring element
> ids" would really help -- to make an attempt at using reduction ad
> absurdum ;)

Right.  I think Parav said he's converting everything to just refer
to "VQ number".


> 
> 
> > I feel there's less of a chance of a confusion between VQ size and
> > its number. But it's not a strong prefrence, RSS is relatively young
> > and it's the only incompatible user of index so far.
> 
> I don't understand why is RSS incompatible with "index".
> 
> Regards,
> Halil

It uses the word "index" in a way that is different from what you
suggest.

Anyway, both "number" and "index" require cleanup work, whoever
is going to do it gets to decide which way it will go.

-- 
MST


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  reply	other threads:[~2023-03-09 16:53 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-23  5:46 [PATCH 0/3] Rename queue index to queue number Parav Pandit
2023-02-23  5:46 ` [PATCH 1/3] transport-pci: Refer to the vq by its number Parav Pandit
2023-02-24 10:05   ` [virtio-dev] " Jiri Pirko
2023-02-23  5:46 ` [PATCH 2/3] transport-mmio: Rename QueueNum register Parav Pandit
2023-02-24 10:06   ` [virtio-dev] " Jiri Pirko
2023-02-27 17:36   ` Michael S. Tsirkin
2023-02-27 17:36     ` [virtio-dev] " Michael S. Tsirkin
2023-02-23  5:46 ` [PATCH 3/3] transport-mmio: Refer to the vq by its number Parav Pandit
2023-02-24 10:06   ` [virtio-dev] " Jiri Pirko
2023-02-27  8:45 ` [virtio-comment] Re: [PATCH 0/3] Rename queue index to queue number Cornelia Huck
2023-02-27  8:45   ` [virtio-dev] " Cornelia Huck
2023-02-27 16:00   ` Parav Pandit
2023-02-27 16:00     ` [virtio-dev] " Parav Pandit
2023-02-27 17:33     ` [virtio-dev] " Michael S. Tsirkin
2023-03-01 17:22   ` [virtio-dev] Re: [virtio-comment] " Halil Pasic
2023-03-01 17:37     ` Michael S. Tsirkin
2023-03-02 13:42       ` [virtio-dev] " Parav Pandit
2023-03-02 15:06       ` [virtio-dev] " Cornelia Huck
2023-03-02 15:58         ` Halil Pasic
2023-03-03  7:42         ` Michael S. Tsirkin
2023-03-03 21:49           ` Halil Pasic
2023-03-03 21:49             ` [virtio-comment] " Halil Pasic
2023-03-05  9:51             ` Michael S. Tsirkin
2023-03-05  9:51               ` [virtio-comment] " Michael S. Tsirkin
2023-03-09 16:46               ` Halil Pasic
2023-03-09 16:46                 ` [virtio-comment] " Halil Pasic
2023-03-09 16:53                 ` Michael S. Tsirkin [this message]
2023-03-09 16:53                   ` Michael S. Tsirkin
2023-03-10 14:05                   ` Halil Pasic
2023-03-10 14:05                     ` Halil Pasic
2023-02-27 17:39 ` Michael S. Tsirkin
2023-02-27 17:39   ` [virtio-dev] " Michael S. Tsirkin
2023-03-02 15:52   ` [virtio-dev] Re: [virtio-comment] " Halil Pasic
2023-03-02 16:12     ` [virtio-dev] " Parav Pandit
2023-03-02 23:38       ` [virtio-dev] " Michael S. Tsirkin
2023-03-07 15:20         ` [virtio-dev] " Parav Pandit
2023-03-07 15:20           ` Parav Pandit
2023-03-03 15:38       ` [virtio-dev] " Halil Pasic
2023-03-03 15:38         ` Halil Pasic
2023-03-05  9:29         ` [virtio-dev] " Michael S. Tsirkin
2023-03-05  9:29           ` Michael S. Tsirkin

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