Date: Fri, 28 Dec 2007 13:04:47 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-drivers@freebsd.org Subject: Re: PEX 8111 PCI-Express to PCI Bridge and FreeBSD Message-ID: <200712281304.47922.jhb@freebsd.org> In-Reply-To: <8103ad500712270516l5db13e1ao388835d01fd19fc3@mail.gmail.com> References: <8103ad500712270516l5db13e1ao388835d01fd19fc3@mail.gmail.com>
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On Thursday 27 December 2007 08:16:59 am Konstantin Dimitrov wrote: > hello All, > > as far as i understand the documentation of the PEX 8111 PCI > Express-to-PCI Bridge, which is freely available here: > > http://www.plxtech.com/products/expresslane/pex8111.asp > > it is "Fully Transparent PCI Express to PCI Bridge", but under FreeBSD > it doesn't seem to behave as transparent, i.e. it doesn't seem to work > well with the standard FreeBSD PCI-PCI bridge driver, because it's not > possible to read/write from/to the PCI IC behind PEX 8111. Can you provide more detail on what you mean by read/write? Can you not do config space transactions to child devices of the bridge or can you not access mapped BARs of child devices or what exactly? -- John Baldwin
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