From: xuan <1877015@bugs.launchpad.net>
To: qemu-devel@nongnu.org
Subject: RE: [Bug 1877015] [NEW] virtio only support packed ring size power of 2 between 256 and 1024
Date: Wed, 06 May 2020 05:14:20 -0000 [thread overview]
Message-ID: <7bea3ac6f10943e8b950957e484c1486@intel.com> (raw)
In-Reply-To: CAE2XoE8tLwbUPWXbGFxf_kZ2S5X-hrmQuqEM_difn8=gcJQbwg@mail.gmail.com
Thank you for your reply. I think the code should add the handling for
packed ring size to follow the spec.
-----Original Message-----
From: bounces@canonical.com <bounces@canonical.com> On Behalf Of Yonggang Luo
Sent: Wednesday, May 6, 2020 12:32 PM
To: Ding, Xuan <xuan.ding@intel.com>
Subject: Re: [Bug 1877015] [NEW] virtio only support packed ring size power of 2 between 256 and 1024
Maybe the virtio need to be revised?
On Wed, May 6, 2020 at 10:51 AM xuan <1877015@bugs.launchpad.net> wrote:
> Public bug reported:
>
> Issue discription：
> When QEMU starts with "-device
> virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,rx_queue_size=1025,tx_queue_size=1025,mq=on,vectors=15,packed=on"
>
> It raises error: Invalid rx_queue_size (= 1025), must be a power of 2
> between 256 and 1024
>
> Analysis:
> According to virtio1.1 spec, the packed queue size value does not have
> to be a power of 2.
>
> ** Affects: qemu
> Importance: Undecided
> Status: New
>
> --
> You received this bug notification because you are a member of qemu-
> devel-ml, which is subscribed to QEMU.
> https://bugs.launchpad.net/bugs/1877015
>
> Title:
> virtio only support packed ring size power of 2 between 256 and 1024
>
> Status in QEMU:
> New
>
> Bug description:
> Issue discription：
> When QEMU starts with "-device
> virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,rx_queue_size=1025,tx_queue_size=1025,mq=on,vectors=15,packed=on"
>
> It raises error: Invalid rx_queue_size (= 1025), must be a power of 2
> between 256 and 1024
>
> Analysis:
> According to virtio1.1 spec, the packed queue size value does not
> have to be a power of 2.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/qemu/+bug/1877015/+subscriptions
>
>
--
此致
礼
罗勇刚
Yours
sincerely,
Yonggang Luo
--
You received this bug notification because you are subscribed to the bug report.
https://bugs.launchpad.net/bugs/1877015
Title:
virtio only support packed ring size power of 2
Status in QEMU:
New
Bug description:
Issue discription：
When QEMU starts with "-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,rx_queue_size=1025,tx_queue_size=1025,mq=on,vectors=15,packed=on"
It raises error: Invalid rx_queue_size (= 1025), must be a power of 2
between 256 and 1024
Analysis:
According to virtio1.1 spec, the packed queue size value does not have to be a power of 2.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1877015/+subscriptions
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1877015
Title:
virtio only support packed ring size power of 2
Status in QEMU:
New
Bug description:
Issue discription：
When QEMU starts with "-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,rx_queue_size=1025,tx_queue_size=1025,mq=on,vectors=15,packed=on"
It raises error: Invalid rx_queue_size (= 1025), must be a power of 2
between 256 and 1024
Analysis:
According to virtio1.1 spec, the packed queue size value does not have to be a power of 2.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1877015/+subscriptions
next prev parent reply other threads:[~2020-05-06 5:24 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-06 2:43 [Bug 1877015] [NEW] virtio only support packed ring size power of 2 between 256 and 1024 xuan
2020-05-06 2:56 ` [Bug 1877015] Re: virtio only support packed ring size power of 2 xuan
2020-05-06 4:31 ` [Bug 1877015] [NEW] virtio only support packed ring size power of 2 between 256 and 1024 罗勇刚(Yonggang Luo)
2020-05-06 4:31 ` Yonggang Luo
2020-05-06 5:14 ` xuan [this message]
2020-05-06 5:11 ` [Bug 1877015] Re: virtio only support packed ring size power of 2 xuan
2021-05-06 13:34 ` Thomas Huth
2021-05-07 1:55 ` xuan
2021-05-11 5:38 ` Thomas Huth
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