Date: Tue, 15 Nov 2011 21:40:15 +0100 From: Hans Petter Selasky <hselasky@c2i.net> To: Jan Henrik Sylvester <me@janh.de> Cc: Josh Paetzel <josh@ixsystems.com>, "xin@ixsystems.com" <xin@ixsystems.com>, d@delphij.net, freebsd-usb@freebsd.org Subject: Re: USB 3 issues Message-ID: <201111152140.16012.hselasky@c2i.net> In-Reply-To: <4EC265AC.5080503@janh.de> References: <4EB2F85A.3060501@ixsystems.com> <201111051315.54807.hselasky@c2i.net> <4EC265AC.5080503@janh.de>
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On Tuesday 15 November 2011 14:14:20 Jan Henrik Sylvester wrote: > On 11/05/2011 13:15, Hans Petter Selasky wrote: > > On Friday 04 November 2011 12:33:53 Jan Henrik Sylvester wrote: > >> On 11/04/2011 10:18, Hans Petter Selasky wrote: > >>> On Thursday 03 November 2011 22:04:44 Xin LI wrote: > >>>> Xin LI > >>> > >>> Please try the following patch: > >>> > >>> http://svn.freebsd.org/changeset/base/227075 > >>> > >>> Then send me the XHCI attach error. > >>> > >>> Probably something which we can fix. > >> > >> Ok, I have found a minute to test 9.0-RC1 + 227075: > >> > >> xhci0:<XHCI (generic) USB 3.0 controller> mem 0xf1f00000-0xf1f0ffff irq > >> 19 at device 0.0 on pci5 > >> xhci0: 32 byte context size. > >> xhci0: Controller reset timeout. > >> xhci0: XHCI halt/start/probe failed err=18 > >> WARNING: A USB process has been left suspended > >> device_attach: xhci0 attach returned 6 > >> > >> BTW: I think it is this device from "pciconf -l": > >> xhci0@pci0:5:0:0: class=0x0c0330 card=0x10001d5c chip=0x10001b73 > >> rev=0x01 hdr=0x00 > > > > In sys/dev/usb/controller/xhci.c > > > > Try to increase the usb_pause_mtx() from hz/1000 to hz/100. > > > > If that doesn't work try to continue, even if the HC is not clearing the > > HCRST bit. Also print "temp" at the end of the loop. > > > > /* Reset controller */ > > XWRITE4(sc, oper, XHCI_USBCMD, XHCI_CMD_HCRST); > > > > for (i = 0; i != 100; i++) { > > > > usb_pause_mtx(NULL, hz / 1000); > > temp = XREAD4(sc, oper, XHCI_USBCMD)& > > (XHCI_CMD_HCRST | XHCI_STS_CNR); > > if (!temp) > > > > break; > > > > } > > > > if (temp) { > > > > device_printf(sc->sc_bus.parent, "Controller " > > > > "reset timeout.\n"); > > > > return (USB_ERR_IOERROR); > > > > } > > I have put hz/100 in all four places of usb_pause_mtx(), replacing > hz/1000 three times and hz/250 once. temp is never != 0 in that loop now > and the controller attaches: > > xhci0: <XHCI (generic) USB 3.0 controller> mem 0xf1f00000-0xf1f0ffff irq > 19 at d > evice 0.0 on pci5 > xhci0: 32 byte context size. > usbus1 on xhci0 > > Anyhow, trying to attach an umass device fails: > > xhci_do_command: Command timeout! > xhci_do_command: Command timeout! > xhci_do_command: Command timeout! > ugen1.2: <FUJITSU> at usbus1 > umass0: <FUJITSU MB86C311, class 0/0, rev 3.00/0.01, addr 1> on usbus1 > umass0: SCSI over Bulk-Only; quirks = 0x0000 > xhci_do_command: Command timeout! > xhci_do_command: Command timeout! > umass0: Get Max Lun not supported (USB_ERR_TIMEOUT) > umass0:5:0:-1: Attached to scbus5 > xhci_do_command: Command timeout! > Hi, > And many more "Command timeout!" after that. Can you compile the kernel with "options USB_DEBUG" in the kernel configuration file and set hw.usb.xhci.debug=15 during bootup? I will get those delay changes into the mainline code. --HPS
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