Re: usb: host: xhci: stalled endpoint ring not cleared on empty td_list

2017-04-18 Thread Rolf Evers-Fischer
Dear Alan and Oliver, > Oliver Neukum hat am 18. April 2017 um 09:37 geschrieben: > > You can call usb_kill_anchored_urbs() always. > Alan Stern hat am 17. April 2017 um 16:14 > geschrieben: > > It is not necessary to call usb_wait_anchor_empty_timeout() before > calling usb_kill_anchored_u

Re: usb: host: xhci: stalled endpoint ring not cleared on empty td_list

2017-04-16 Thread Rolf Evers-Fischer
Hi Chris, > On 04/11/2017 04:33 PM, Christian Gromm wrote: > Well, this sounds like a workaround to me as you are changing the timing > by waiting for the URBs to finish. This might prevent the > race from happening. > I personally would rate it rather as a fix than as a workaround, because the "

Re: usb: host: xhci: stalled endpoint ring not cleared on empty td_list

2017-04-11 Thread Rolf Evers-Fischer
Hi, Christian Gromm writes: > we observe an issue with a td_list running empty and an > endpoint being stalled at the same time on > > Linux ihu-low 4.1.27-abl #1 SMP PREEMPT Mon Mar 20 13:51:51 CET 2017 > x86_64 x86_64 x86_64 GNU/Linux. we've recently observed the same problem with "Linux ihu-

Re: HSIC on imx6

2014-02-27 Thread Rolf Evers-Fischer
Hi Christian > Christian Gmeiner hat am 27. Februar 2014 um > 15:31 geschrieben: > > > Hi Rolf > > 2014-02-27 15:19 GMT+01:00 Rolf Evers-Fischer : > >> Rolf Evers-Fischer hat am 27. Februar 2014 um > >> 12:43 geschrieben: > >> > >> Well,

Re: HSIC on imx6

2014-02-27 Thread Rolf Evers-Fischer
> Rolf Evers-Fischer hat am 27. Februar 2014 um > 12:43 geschrieben: > > Well, it's not the only patch that we were using in 3.10 kernel: We had 30 > chipidea patches on the 3.10 kernel. Fortunately a lot of them have been > integrated into the mainline, but 4 of t

Re: HSIC on imx6

2014-02-27 Thread Rolf Evers-Fischer
Hi Christian > Christian Gmeiner hat am 26. Februar 2014 um > 20:15 geschrieben: > > > Hi Rolf > > 2014-02-26 15:48 GMT+01:00 Rolf Evers-Fischer : > > Hi Christian, > > > >> Peter Chen hat am 26. Februar 2014 um 03:05 > >> geschrieben: >

RE: HSIC on imx6

2014-02-26 Thread Rolf Evers-Fischer
Hi Christian, > Peter Chen hat am 26. Februar 2014 um 03:05 > geschrieben: > > > > > >> >> patches. I am working some days on this topic but without much > > >> >> success and I am running out of time :/ > > >> >> > > >> > > > >> > Will keep you posted. > > >> > > > >> > > >> Hope you soon will f

RE: HSIC on imx6

2014-02-26 Thread Rolf Evers-Fischer
> Rolf Evers-Fischer hat am 25. Februar 2014 um > 17:30 geschrieben: > > > Dear Peter, > > > Peter Chen hat am 20. Februar 2014 um 02:45 > > geschrieben: > > > > > > > > > > > > > > > > > > Okay that makes

RE: HSIC on imx6

2014-02-25 Thread Rolf Evers-Fischer
Dear Peter, > Peter Chen hat am 20. Februar 2014 um 02:45 > geschrieben: > > > > > > > > > > > Okay that makes sense. In theory the ehci core should do the reset. Is > > there anything special regarding reset and HSIC? > > > > After pcd interrupt occurs, hsic will be treated as a normal ehci host