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:
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>
>

-- 
         此致
礼
罗勇刚
Yours
    sincerely,
Yonggang Luo