Hello, I did a build this morning from HEAD with the XHCI change committed the other day and no change in status. The machine doesn't react at all to plug/unplug events.
I read through the XHCI spec and noticed that it allows MSI-X configuration but the current driver is MSI-only -- maybe this is related? vmstat -i might help give an idea: interrupt total rate cpu0:timer 26368 22 irq264: xhci0 1 0 On Oct 17, 2013, at 11:24 PM, Hans Petter Selasky wrote: > On 10/18/13 03:23, Doug White wrote: >> >> On Oct 16, 2013, at 10:53 PM, Hans Petter Selasky wrote: >> >>> Is the problem fixed if you set: >>> >>> hw.usb.xhci.xhci_port_route=-1 >>> >>> in /boot/loader.conf >> >> No, no change in (lack of) functionality. >> >> I uploaded these bootverbose-enabled dmesg outputs: >> >> With XHCI Mode = Disabled in BIOS (reverts ports to EHCI control): >> >> http://people.freebsd.org/~dwhite/dmesg.xhci_off_in_bios.20131017 >> >> With XHCI Mode = Enabled in BIOS and with tunable >> hw.usb.xhci.xhci_port_route=-1 set: >> >> http://people.freebsd.org/~dwhite/dmesg.xhci_on.with_routing.20131017 >> >>> XHCI is a more high-level controller, and I suspect that the makers have >>> added some propritary glue to switch ports back and forth between XHCI and >>> EHCI which is not documented anywhere. >> >> On the first board (X10SLM-F), XHCI Mode is a BIOS setting and affects all >> USB ports. I haven't experimented with settings on the Atom yet. The Atom >> uses a Renesas chip for its USB ports, though, and no USB from the SoC >> itself, that I can tell. >> > > Hi Doug, > > It looks like the XHCI controller is not getting any port events, like it > should. Basically the XHCI controller you've got does not behave like I would > expect, according to the XHCI specification from INTEL. > > I've CC'ed Sarah Sharp @ Intel which is working on the Linux XHCI driver. > > --HPS > > Hi Sarah! > > We FreeBSD guys have seen several oddities regarding the Lynx Point Intel > based controllers, and would like to know if some additional datasheets exist > regarding how ports switch actually works. > > The last issue on the block was that the Lynx Point's returned a invalid > parameter error on the set address command which configures the device > context (no set address sent), if a USB device was plugged into the XHCI > controller, and the port routing was enabled. If the command was issued when > no USB device was plugged in by faking a port connection status change, then > it would succeed. > >> http://svnweb.freebsd.org/base/head/sys/dev/usb/controller/xhci.c?r1=255356&r2=255768 > > I'm sorry to say I fear this extra magic about the port routing for Lynx > Points is not working like expected. Sarah, do you have any more clues for us > FreeBSD USB guys? > > Thank you! > > --HPS _______________________________________________ freebsd-usb@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to "freebsd-usb-unsubscr...@freebsd.org"
