Date: Tue, 10 Feb 2015 09:28:33 +0100 From: Gary Jennejohn <gljennjohn@gmail.com> To: John Baldwin <jhb@freebsd.org> Cc: usb@freebsd.org Subject: Re: r276717 causes problems Message-ID: <20150210092833.326c9338@ernst.home> In-Reply-To: <4020134.66atlK9cJ0@ralph.baldwin.cx> References: <20150209183648.7825eee5@ernst.home> <54D92612.6000207@selasky.org> <4020134.66atlK9cJ0@ralph.baldwin.cx>
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On Mon, 09 Feb 2015 16:31:32 -0500 John Baldwin <jhb@freebsd.org> wrote: > On Monday, February 09, 2015 10:26:42 PM Hans Petter Selasky wrote: > > Hi John, > > > > Do all PCI busses support 64-bit DMA busmaster? Do we reflect this in > > the busdma tags passed down to device drivers? > > Yes, barring weird quirks. Even pre-PCI-e had a way to support 64-bit > addresses for cards on a 32-bit bus using dual address cycles. Gary, do you > only have problems with xhci and not other PCI devices in your system? > I only have problems with the disk enclosure. USB3 docking stations and USB3 hubs work just fine when attached to the USB3 card. That's why I concluded that it's a problem with the JMicro bridge chip. I only have a graphics card and this USB3 card plugged into PCIe. -- Gary Jennejohn
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