From: Wei Liu <liuw@liuw.name>
To: xen-devel@lists.xensource.com
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Subject: Interrupt issue for nic cards
Date: Fri, 13 May 2011 11:14:47 +0800 [thread overview]
Message-ID: <BANLkTi=e6bWKWMBD9WkM8QLfzgW3uKtRVA@mail.gmail.com> (raw)
Hi, all.
I'm running the latest Xen unstable with Debian Squeeze as DomU in HVM mode.
I configured two nics:
vif = ['bridge=br0,model=virtio', 'type=ioemu,bridge=br0,model=rtl8139']
These two cards can be successfully configured in DomU. But they fail
to communicate with host bridge.
I can see packets coming out their taps, but no packets are going back
into DomU.
Stefano suggest I look into /proc/interrupts. It shows:
11 0 IO-APIC-fasteoi eth0
48 0 PCI-MSI-edge virtio0-config
49 0 PCI-MSI-edge virtio0-input
50 0 PCI-MSI-edge virtio0-output
It seems that there are no interrupts for those nic devices. I'm
pretty sure that QEMU has pushed the data back and set interrupts
(through msix_notify / qemu_set_irq).
Has anyone encountered this problem before?
--
Best regards
Wei Liu
Twitter: @iliuw
Site: http://liuw.name
next reply other threads:[~2011-05-13 3:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-13 3:14 Wei Liu [this message]
2011-05-13 13:39 ` Interrupt issue for nic cards Konrad Rzeszutek Wilk
2011-05-13 13:49 ` Stefano Stabellini
2011-05-13 14:06 ` Wei Liu
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