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 associated QTDs ?
Try
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 associated QTDs
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
, 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 pull the device out of NYET
state; you
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 hangs during small and large file
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 is wrong
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 ACKED.
3.
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 typically like below
1. Host sends 512 bytes OUT packet which is ACKED.
2. Host sends 13
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 results again.
The few
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 OUT packet which
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.
___
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
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 during small and large file
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 affecting
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:
On Fri, 2 Jun 2006, Vivek Dharmadhikari wrote:
Host send OUT
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 like to
-
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 large file
transfer
On Tue, 6 Jun 2006, Vivek Dharmadhikari wrote:
Alan
Vivek, can you
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 after
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 port was
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 are seen?
Or
want do more experiements using hardware analyzer.
Regards
Vivek
-Original Message-
From: David Brownell [mailto:[EMAIL PROTECTED]
Sent: Monday, June 05, 2006 7:27 AM
To: linux-usb-devel@lists.sourceforge.net
Cc: Alan Stern; Vivek Dharmadhikari
Subject: Re: [linux-usb-devel] Usb hangs during
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-usb-devel] Usb hangs during small
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 seconds
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
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 droppage
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
below. Note that the test comprises of writing about 12Mbytes
: 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 Stern [EMAIL PROTECTED
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 you have
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] Usb hangs during small
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
, 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 speed usb device thread
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
by the
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 at the
-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 Dharmadhikari wrote
-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 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 am facing issues when using a 2.0 external HARD disk or flash
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 am
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