lto:[EMAIL PROTECTED]
Sent: Wednesday, June 07, 2006 4:03 PM
To: Vivek Dharmadhikari
Cc: Alan Stern; USB development list
Subject: Re: [linux-usb-devel] Usb hangs during small and large file
transfer
On Wednesday 07 June 2006 3:23 pm, Vivek Dharmadhikari wrote:
>
> How do i dump, QH and its
PROTECTED]
Sent: Wednesday, June 07, 2006 4:03 PM
To: Vivek Dharmadhikari
Cc: Alan Stern; USB development list
Subject: Re: [linux-usb-devel] Usb hangs during small and large file
transfer
On Wednesday 07 June 2006 3:23 pm, Vivek Dharmadhikari wrote:
>
> How do i dump, QH and its associate
On Wednesday 07 June 2006 3:23 pm, Vivek Dharmadhikari wrote:
>
> How do i dump, QH and its associated QTDs ?
Try dbg_qh() and dbg_qtd() ... see ehci-dbg.c for examples
of scanning the qtd list.
> >I don't see this happening ... it's not supposed to, and I just looked
> >at how the bits affectin
his?
The ehci silicon is from synopsys designware USB 2.0 core.
Regards
Vivek
-Original Message-
From: David Brownell [mailto:[EMAIL PROTECTED]
Sent: Wednesday, June 07, 2006 2:40 PM
To: Alan Stern
Cc: Vivek Dharmadhikari; USB development list
Subject: Re: [linux-usb-devel] Usb hangs durin
David
How do i dump, QH and its associated QTDs ?
Regards
Vivek
-Original Message-
From: David Brownell [mailto:[EMAIL PROTECTED]
Sent: Wednesday, June 07, 2006 2:42 PM
To: Vivek Dharmadhikari
Cc: Alan Stern; USB development list
Subject: Re: [linux-usb-devel] Usb hangs during small and
On Wednesday 07 June 2006 2:19 pm, Vivek Dharmadhikari wrote:
> Clearly the hardware is mis-behaving.
Possibly. How about dumping the QH and its associated QTDs when the
driver unlinks it? Then we'd be able to notice various mismatches.
___
linux-us
On Wednesday 07 June 2006 11:50 am, Alan Stern wrote:
> On Wed, 7 Jun 2006, Vivek Dharmadhikari wrote:
>
> > Alan
> >
> > Here are the results again.
> >
> > The few transactions for the time period before the "command_abort called"
> > are typically like below
> >
> > 1. Host sends 512 bytes
n Stern [mailto:[EMAIL PROTECTED]
Sent: Wednesday, June 07, 2006 11:50 AM
To: Vivek Dharmadhikari
Cc: David Brownell; USB development list
Subject: RE: [linux-usb-devel] Usb hangs during small and large file
transfer
On Wed, 7 Jun 2006, Vivek Dharmadhikari wrote:
> Alan
>
> Here are the resu
elopment list
Subject: RE: [linux-usb-devel] Usb hangs during small and large file
transfer
On Wed, 7 Jun 2006, Vivek Dharmadhikari wrote:
> Alan
>
> Here are the results again.
>
> The few transactions for the time period before the "command_abort called"
> are typi
On Wed, 7 Jun 2006, Vivek Dharmadhikari wrote:
> Alan
>
> Here are the results again.
>
> The few transactions for the time period before the "command_abort called"
> are typically like below
>
> 1. Host sends 512 bytes OUT packet which is ACKED.
> 2. Host sends 13 bytes IN packet which is AC
On Wed, 7 Jun 2006, Vivek Dharmadhikari wrote:
> Alan
>
> >Obviously you are wrong, because the PING packet isn't getting sent!
>
> >More specifically, the hardware is _supposed_ to send the PING packet
> >automatically as part of flow control. The fact that it doesn't means
> >that something i
code will fit in the driver. Any pointers,idea will be helpful.
Thanks.
Regards
Vivek
-Original Message-
From: Alan Stern [mailto:[EMAIL PROTECTED]
Sent: Wednesday, June 07, 2006 8:08 AM
To: Vivek Dharmadhikari
Cc: David Brownell; USB development list
Subject: RE: [linux-usb-devel] Usb
MAIL PROTECTED]
Sent: Wednesday, June 07, 2006 8:08 AM
To: Vivek Dharmadhikari
Cc: David Brownell; USB development list
Subject: RE: [linux-usb-devel] Usb hangs during small and large file
transfer
On Tue, 6 Jun 2006, Vivek Dharmadhikari wrote:
> >I can't. In any case, you don't need to p
On Tue, 6 Jun 2006, Vivek Dharmadhikari wrote:
> >I can't. In any case, you don't need to pull the device out of NYET
> >state; you need to push the host controller to send another PING.
>
> I wonder if the act of pushing host controller to send another PING is
> done in the software or in the
rlier,i will repost the results.
Thanks.
Regards
Vivek
-Original Message-
From: Alan Stern [mailto:[EMAIL PROTECTED]
Sent: Tuesday, June 06, 2006 11:46 AM
To: Vivek Dharmadhikari
Cc: David Brownell; USB development list
Subject: RE: [linux-usb-devel] Usb hangs during small and lar
On Tue, 6 Jun 2006, Vivek Dharmadhikari wrote:
> Alan
>
> >Vivek, can you please run the same test over again? This time also
> >collect the usb-storage verbose debugging log so we can see exactly what
> >happens from the host's point of view and compare it with the Catalyst's
> >record. We'd l
TED]
Sent: Monday, June 05, 2006 9:07 AM
To: Vivek Dharmadhikari; David Brownell
Cc: USB development list
Subject: Re: [linux-usb-devel] Usb hangs during small and large file
transfer
On Mon, 5 Jun 2006, David Brownell wrote:
> On Saturday 03 June 2006 9:33 am, Alan Stern wrote:
>
evertheless, I will double check the ported code and erratum
for Synopsys USB 2.0 controller.
Regards
Vivek
-Original Message-
From: Alan Stern [mailto:[EMAIL PROTECTED]
Sent: Saturday, June 03, 2006 9:34 AM
To: Vivek Dharmadhikari
Cc: David Brownell; USB development list
Subject: RE: [linux-u
ivek Dharmadhikari
Subject: Re: [linux-usb-devel] Usb hangs during small and large file
transfer
On Saturday 03 June 2006 9:33 am, Alan Stern wrote:
> On Fri, 2 Jun 2006, Vivek Dharmadhikari wrote:
> >
> > Host send OUT transcation with 31 Bytes
> > Device reponds with NYE
On Mon, 5 Jun 2006, David Brownell wrote:
> On Saturday 03 June 2006 9:33 am, Alan Stern wrote:
> > On Fri, 2 Jun 2006, Vivek Dharmadhikari wrote:
> > >
> > > Host send OUT transcation with 31 Bytes
> > > Device reponds with NYET.
> > > 30 seconds IDLE time on bus.
>
> Where IDLE == only SOFs ar
On Saturday 03 June 2006 9:33 am, Alan Stern wrote:
> On Fri, 2 Jun 2006, Vivek Dharmadhikari wrote:
> >
> > Host send OUT transcation with 31 Bytes
> > Device reponds with NYET.
> > 30 seconds IDLE time on bus.
Where IDLE == only SOFs are seen?
Or the hardware idle state, by which you mean the
On Mon, 5 Jun 2006, Vivek Dharmadhikari wrote:
> Earlier you indicated that there is a 30 second timer in scsi module.
> Can this timer play any role here ? Pardon me if this sounds a silly
> question as don't know about scsi.
The timer _does_ play a role. It is what causes a reset to occur afte
On Fri, 2 Jun 2006, Vivek Dharmadhikari wrote:
> Alan
>
> >The problem is more likely to be in your device than in the kernel.
>
> You are proabably right here. I used Catalyst USB analyzer to cross
> check the results of usbmon log. USB analyzer indicated many hot spots
> of 30 seconds and 6 s
On Fri, 2 Jun 2006 15:25:39 -0700, "Vivek Dharmadhikari" <[EMAIL PROTECTED]>
wrote:
> >The '1t' pseudo file provides the counters, if anyone is interested
>
> What are these counters ?
> How different are these counters from the current format of usbmon log ?
> Do the file usbmon.txt contains i
ing at high speed !. I am baffled by this fact. Do you any theory
here ?
Thanks.
Regards
Vivek
-Original Message-
From: Alan Stern [mailto:[EMAIL PROTECTED]
Sent: Friday, June 02, 2006 8:39 AM
To: Vivek Dharmadhikari
Cc: linux-usb-devel@lists.sourceforge.net
Subject: RE: [linux-usb-devel]
On Fri, 2 Jun 2006, Vivek Dharmadhikari wrote:
> Alan
>
> >Apparently you are using an old kernel version. With more recent versions
> >(like 2.6.17-rc5), usbmon provides a lot more information.
>
> I am using 2.6.12 kernel.
>
> >Also it looks like either usbmon has dropped a lot of lines or
age-
From: Pete Zaitcev [mailto:[EMAIL PROTECTED]
Sent: Friday, June 02, 2006 11:54 AM
To: Alan Stern
Cc: Vivek Dharmadhikari; linux-usb-devel@lists.sourceforge.net
Subject: Re: [linux-usb-devel] Usb hangs during small and large file
transfer
On Fri, 2 Jun 2006 11:39:05 -0400 (EDT), Alan
e.net
Subject: RE: [linux-usb-devel] Usb hangs during small and large file
transfer
On Thu, 1 Jun 2006, Vivek Dharmadhikari wrote:
> Alan
>
> I used usbmon to gain more visibility and i see some interesting points
> in it. I am reproducing a small and relevent portion of usbmon log
&
On Fri, 2 Jun 2006 11:39:05 -0400 (EDT), Alan Stern <[EMAIL PROTECTED]> wrote:
> Also it looks like either usbmon has dropped a lot of lines or you have
> edited them out of the log.
The '1t' pseudo file provides the counters, if anyone is interested.
Most of the time, the main reason for dropp
On Thu, 1 Jun 2006, Vivek Dharmadhikari wrote:
> Alan
>
> I used usbmon to gain more visibility and i see some interesting points
> in it. I am reproducing a small and relevent portion of usbmon log
> below. Note that the test comprises of writing about 12Mbytes of data to
> 2.0 external USB hard
, May 31, 2006 6:48 AM
To: Vivek Dharmadhikari
Cc: linux-usb-devel@lists.sourceforge.net
Subject: RE: [linux-usb-devel] Usb hangs during small and large file
transfer
On Tue, 30 May 2006, Vivek Dharmadhikari wrote:
> Hello Alan
>
> I was closely following the "resetting high sp
On Tue, 30 May 2006, Vivek Dharmadhikari wrote:
> Hello Alan
>
> I was closely following the "resetting high speed usb device" thread and
> i see that usbmon was used to track down the issue. I think usbmon could
> be very helpful to debug the USB hangs issue that i reporeted earlier by
> looking
On Tue, 30 May 2006, Vivek Dharmadhikari wrote:
> Hello Alan
>
> > When you mount the USB drive, do you use the "-o sync" option? That could
> > cause the delays and the errors that you see. They are not caused by
> > problems in the 2.6.12 USB drivers. (Well, some of the delays are caused
?
Regards
Vivek
-Original Message-
From: Alan Stern [mailto:[EMAIL PROTECTED]
Sent: Tuesday, May 16, 2006 3:02 PM
To: Vivek Dharmadhikari
Cc: linux-usb-devel@lists.sourceforge.net
Subject: Re: [linux-usb-devel] Usb hangs during small and large file
transfer
On Fri, 12 May 2006, Vivek Dha
page cache ?
Regards
Vivek
-Original Message-
From: Alan Stern [mailto:[EMAIL PROTECTED]
Sent: Tuesday, May 16, 2006 3:02 PM
To: Vivek Dharmadhikari
Cc: linux-usb-devel@lists.sourceforge.net
Subject: Re: [linux-usb-devel] Usb hangs during small and large file
transfer
On Fri, 12 May 2006
On Fri, 12 May 2006, Vivek Dharmadhikari wrote:
>
> Hello All
>
> I have ported linux 2.6.12 USB driver to 200MHz MIPS SOC with synopsys
> USB 2.0 block. The USB block is NOT interfaced using PCI therefore I
> used platform glue structure to port the driver. The driver is now
> working.
>
> I
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