Hi Sarah,
On 01/03/2014 02:03 AM, Sarah Sharp wrote:
> Denis, do all of Compulab's Haswell systems reboot on shutdown? Are
> they all running a Phoenix BIOS? Can you send me the output of `sudo
> lspci -vvv -s` for the xHCI host?
oem@oem-Intense-PC2 ~ $ sudo lspci -vvv -s 00:14.0
00:14.0 USB controller: Intel Corporation Lynx Point-LP USB xHCI HC (rev 04)
(prog-if 30 [XHCI])
Subsystem: Intel Corporation Device 7270
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 59
Region 0: Memory at f0620000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [70] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0-,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+
Address: 00000000fee0200c Data: 41b1
Kernel driver in use: xhci_hcd
> Basically, I'm trying to find a common variable to key off. I suspect
> BIOS vendor is probably the right thing, instead of system vendor.
By the way the quirk introduced by commit
e95829f474f0db3a4d940cae1423783edd966027 "xhci: Switch PPT
ports to EHCI on shutdown." works for Lynx Point as well at least on
Intense-PC2. I mean we can add
XHCI_SPURIOUS_REBOOT flag that invokes usb_disable_xhci_ports().
May be this solution works for HP and other systems without side effects?
Denis
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