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Hi,<br> You told me " you need to set up Xen so that the driver is allowed to restore the HCA and PCI bridge config space."<br>But how can I set up xen to allow the driver to restore the HCA and pci config space?<br><br>> From: rdreier@cisco.com<br>> To: sokar6012@hotmail.com<br>> CC: general@lists.openfabrics.org<br>> Subject: Re: [ofa-general] Infiniband with Xen<br>> Date: Thu, 21 May 2009 15:33:19 -0700<br>> <br>> > I have tried to also to passthrough the pci bridge but It doesn't work, I got that with de dmesg on my Dom0 :<br>> > <br>> > 1297.293367] pciback: vpci: 0000:04:00.0: assign to virtual slot 0 ( this is HCA)<br>> > [ 1297.295538] pciback: vpci: 0000:03:07.1: assign to virtual slot 1 ( This is eth1)<br>> > [ 1297.298346] pciback: vpci: 0000:03:08.0: assign to virtual slot 2 ( this is the HCA bridge)<br>> > [ 1298.655743] pciback 0000:03:08.0: Driver tried to write to a read-only configuration space field at offset 0x3e, size 2. This may be harmless, but if you have problems with your device:<br>> > [ 1298.655747] 1) see permissive attribute in sysfs<br>> > [ 1298.655749] 2) report problems to the xen-devel mailing list along with details of your device obtained from lspci.<br>> <br>> Yes, the driver does set the PCI bridge back up after resetting the HCA<br>> (to restore all the configuration values that are lost during reset).<br>> So you need to set up Xen so that the driver is allowed to restore the<br>> HCA and PCI bridge config space.<br>> <br>> Also it's not clear to me from these messages whether the HCA is put<br>> into the domU PCI topology as being under the PCI bridge -- that is<br>> probably required for the driver to work.<br>> <br>> - R.<br><br /><hr />Vous voulez savoir ce que vous pouvez faire avec le nouveau Windows Live ? <a href='http://www.microsoft.com/windows/windowslive/default.aspx' target='_new'>Lancez-vous !</a></body>
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