From: xuan <1877015@bugs.launchpad.net>
To: qemu-devel@nongnu.org
Subject: [Bug 1877015] [NEW] virtio only support packed ring size power of 2 between 256 and 1024
Date: Wed, 06 May 2020 02:43:28 -0000 [thread overview]
Message-ID: <158873300816.14142.15664636500998863138.malonedeb@gac.canonical.com> (raw)
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
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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.
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next reply other threads:[~2020-05-06 2:51 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-06 2:43 xuan [this message]
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
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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