Am 28.07.2013 22:41, schrieb Christian Lamparter:
On Sunday, July 28, 2013 04:28:25 PM Oleksij Rempel wrote:
Am 28.07.2013 14:12, schrieb Oleksij Rempel:
Am 28.07.2013 13:38, schrieb Christian Lamparter:
Anyway, I tried the -next branch.
commit dbbb809d592dde0b3c9ecb97b3b387ff8e40e799
Author: Oleksij Rempel <linux@xxxxxxxxxxxxxxxx>
Date: Wed Jul 24 10:26:18 2013 +0200
k2_fw_usb_api: workaround for EP4 bug.
but still, the device won't show up after autosuspend.
Hm... firmware probably didn't rebooted before suspend. Did interface
was up, before autosuspend? If no, you need latest wireles-testing -
there are patches to handle this issue. Or just make "ifconfig wlan1 up"
before rmmod.
Oh, I it was on the latest wireless-testing. (And the "ath9k_htc" module
had the patch "ath9k_htc: reboot firmwware if it was loaded").
Furthermore, I did the same test with one of the ehci-only ports
and it worked. Both, devices (one had a AR7015, the other a AR9271)
came back after autosuspend there.
Grrr... so it brings us back to xhci issue. Even EP4 workaround wont
work here :( Suddenly i have no more ideas.
Sarah, it's your turn now.
Christian,
can you please provide some more info about your xhci controller. I'll
try to get me same.
Well, it's a laptop (HP DV6-6003EG). I recon that getting 100% the
same setup will be difficult. However, since the uPD720200 was/is
very popular, it should be very easy to find one. [It's probably
on all of these "10 euro usb-3.0 pcie-adapters". So as long as you
got a free 1x-pcie port you should be good.]
Here's the lspci summary:
19:00.0 USB controller [0c03]: NEC Corporation uPD720200 USB 3.0 Host Controller [1033:0194] (rev 04) (prog-if 30 [XHCI])
Subsystem: Hewlett-Packard Company Device [103c:1657]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 19
Region 0: Memory at d3400000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
Thx... i purchased on random on ebay, will see what i get.
I know now why carl9170 don't triggering this bug. Carl uses EP4 as
Interrupt with packet size 64. ath9k-htc initially have EP4=Intr,
Interval=1, but will reconfigure it to Bulk, Interval=0.
It mean, before usb suspend EP4=Bulk, Interval=0 and after resume
EP4=Intr, Inter=?. May be xhci can't handle some thing like this? Or may
be interval stay 0, and xhci will overfill usb buffer on adapter - at
least it looks so.
--
Regards,
Oleksij
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