[2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Rogério Brito]

Hi.

I have an iBook G3 600MHz combo (late 2001 model, powerpc) with a USB
wireless card rt2x00 that doesn't work.

I just compiled a fresh 2.6.26-rc4 kernel and it can't get a lease from
the access point, even though it is able to see the access point.

The userland here is Debian unstable (sid) and I can perform some of the
steps in the direction of configuring the interface. For instance, the
following works (I am using wep as the encryption system with other systems
running under Linux, but, unfortunately, EVEN disabling encryption for the
sake of the tests doesn't help here):

*insert USB card*
ifconfig wlan0 up
iwconfig wlan0 essid "default"
iwconfig wlan0 s:my-key
iwconfig wlan0 ap any
(Here it shows that it can see the access point)
dhclient wlan0
(Here, it is unable to grab an IP addess from the access point)

I have all the information available (like the revision of my USB
device) for any developer that could help me in eliminating this bug
from the kernel on big-endian architectures.


Thanks in advance, Rogério.

P.S.: I am not currently subscribed to linux-kernel, so I would
appreciate any copies of the replies. Thanks.
-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Rogério Brito]

Hi there.

I just did some more tests and I would like to report them here.

On Jun 01 2008, Rogério Brito wrote:
> I have an iBook G3 600MHz combo (late 2001 model, powerpc) with a USB
> wireless card rt2x00 that doesn't work.

It seems that we have some problems with the USB card even on ia32:
after it is configured, I have to issue the command "iwconfig wlan0 ap any"
all the time so that I can be able to download anything or even resolve
names.

With a PCMCIA rt2500 adapter, I don't have such problems when running a
stock Ubuntu kernel from Hardy Heron.

So, it seems that the problem is a little deeper than just some
endianness thing to it.


Regards, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[John W. Linville]

On Sun, Jun 01, 2008 at 04:30:01PM -0300, Rogério Brito wrote:
> Hi.
> 
> I have an iBook G3 600MHz combo (late 2001 model, powerpc) with a USB
> wireless card rt2x00 that doesn't work.
> 
> I just compiled a fresh 2.6.26-rc4 kernel and it can't get a lease from
> the access point, even though it is able to see the access point.
> 
> The userland here is Debian unstable (sid) and I can perform some of the
> steps in the direction of configuring the interface. For instance, the
> following works (I am using wep as the encryption system with other systems
> running under Linux, but, unfortunately, EVEN disabling encryption for the
> sake of the tests doesn't help here):
> 
> *insert USB card*
> ifconfig wlan0 up
> iwconfig wlan0 essid "default"
> iwconfig wlan0 s:my-key
> iwconfig wlan0 ap any
> (Here it shows that it can see the access point)
> dhclient wlan0
> (Here, it is unable to grab an IP addess from the access point)

You should set the key _before_ setting the essid.

John
-- 
John W. Linville
linville@tuxdriver.com

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Rog?rio Brito]

First of all, thanks John for taking the time to reply to my
message.

On Jun 06 2008, John W. Linville wrote:
> On Sun, Jun 01, 2008 at 04:30:01PM -0300, Rogério Brito wrote:
> > I have an iBook G3 600MHz combo (late 2001 model, powerpc) with a USB
> > wireless card rt2x00 that doesn't work.
> > 
> > I just compiled a fresh 2.6.26-rc4 kernel and it can't get a lease from
> > the access point, even though it is able to see the access point.
> > 
> > The userland here is Debian unstable (sid) and I can perform some of the
> > steps in the direction of configuring the interface. For instance, the
> > following works (I am using wep as the encryption system with other systems
> > running under Linux, but, unfortunately, EVEN disabling encryption for the
> > sake of the tests doesn't help here):
(...)
> > (Here, it is unable to grab an IP addess from the access point)
> 
> You should set the key _before_ setting the essid.

Thanks, but that unfortunately doesn't seem to help. :-(

I have taken dmesg "snapshots" of my system together with many other
information regarding how it is configured and I put it at my
homepage, at <http://www.ime.usp.br/debug/>.

>From what I am seeing, it looks like the bug mentioned in
<http://bugzilla.kernel.org/show_bug.cgi?id=9388>, but I don't get the
stack trace that is present there and I'm just trying to use WEP
instead of WPA or anything fancier.

Thanks for all the help and please let me know if further information
can be helpful for debugging this situation.


Thanks again, Rogerio Brito

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[John W. Linville]

On Fri, Jun 06, 2008 at 09:52:27PM -0300, Rog?rio Brito wrote:
> First of all, thanks John for taking the time to reply to my
> message.
> 
> On Jun 06 2008, John W. Linville wrote:
> > On Sun, Jun 01, 2008 at 04:30:01PM -0300, Rogério Brito wrote:
> > > I have an iBook G3 600MHz combo (late 2001 model, powerpc) with a USB
> > > wireless card rt2x00 that doesn't work.
> > > 
> > > I just compiled a fresh 2.6.26-rc4 kernel and it can't get a lease from
> > > the access point, even though it is able to see the access point.
> > > 
> > > The userland here is Debian unstable (sid) and I can perform some of the
> > > steps in the direction of configuring the interface. For instance, the
> > > following works (I am using wep as the encryption system with other systems
> > > running under Linux, but, unfortunately, EVEN disabling encryption for the
> > > sake of the tests doesn't help here):
> (...)
> > > (Here, it is unable to grab an IP addess from the access point)
> > 
> > You should set the key _before_ setting the essid.
> 
> Thanks, but that unfortunately doesn't seem to help. :-(
> 
> I have taken dmesg "snapshots" of my system together with many other
> information regarding how it is configured and I put it at my
> homepage, at <http://www.ime.usp.br/debug/>.

404

> >From what I am seeing, it looks like the bug mentioned in
> <http://bugzilla.kernel.org/show_bug.cgi?id=9388>, but I don't get the
> stack trace that is present there and I'm just trying to use WEP
> instead of WPA or anything fancier.

Did you apply this patch?

	http://bugzilla.kernel.org/attachment.cgi?id=14384

John
-- 
John W. Linville
linville@tuxdriver.com

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Rogério Brito]

Hi, again, John.

On Jun 07 2008, John W. Linville wrote:
> On Fri, Jun 06, 2008 at 09:52:27PM -0300, Rog?rio Brito wrote:
> > I have taken dmesg "snapshots" of my system together with many other
> > information regarding how it is configured and I put it at my
> > homepage, at <http://www.ime.usp.br/debug/>.
> 
> 404

I think that you should have received a later reply telling about the typo
in the address above. It should have been:
<http://www.ime.usp.br/~rbrito/debug/>.

> > >From what I am seeing, it looks like the bug mentioned in
> > <http://bugzilla.kernel.org/show_bug.cgi?id=9388>, but I don't get the
> > stack trace that is present there and I'm just trying to use WEP
> > instead of WPA or anything fancier.
> 
> Did you apply this patch?
> 
> 	http://bugzilla.kernel.org/attachment.cgi?id=14384

No, I did not. Is it still relevant with -rc4 or with -rc5? I still get the
same problem with -rc5 (but I will have to test it a bit more with -rc5).
Just as a refresher:

* I can set everything on the iBook with the wireless key plugged;
* The wireless key *sees* the AP, even with encryption (that is, it grabs
  the MAC address of the AP, it (sometimes) shows me the signal strength,
  and if I issue "iwconfig wlan0 ap any", I see both the led of the
  wireless key blink and an increase of amount of data transmitted and
  received with "ifconfig wlan0");
* With everything set this way, if I do "dhclient wlan0", it doesn't get a
  lease from the AP---actually, despite the fact that it is possible to see
  the other point, dhclient goes, after some attempts of getting a lease,
  to background, but no address is ever gotten;
* Just to rule out possible problems with something sent to the address
  255.255.255.255 (which is reported as being done by dhclient), I tried to
  configure the address by hand via ifconfig, but, for instance, I couldn't
  ping my AP (which I can from other computers with a rt61pci driver and a
  PCMCIA connection);
* As I mentioned above, I have no problems with the rt61pci driver, but the
  USB one doesn't seem to work (unfortunately, the iBook does not have a
  PCMCIA slot). With a notebook with an on-board Intel wireless card, I
  *also* don't have any problems.

Well, thanks, for the help so far. I hope that we can solve this issue
quite soon, as I need this iBook for work.

I am willing to help as much as I can and test anything (even something
that might be "experimental"). I think that this is as good a tester that
you can get, right? :-)


Thanks, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Rogério Brito]

Hi again, John.

I'm including Ivo van Doorn in this e-mail. I hope that the
problem gets solved soon.

On Jun 07 2008, Rogério Brito wrote:
> Hi, again, John.
> 
> On Jun 07 2008, John W. Linville wrote:
> > On Fri, Jun 06, 2008 at 09:52:27PM -0300, Rog?rio Brito wrote:
> > > I have taken dmesg "snapshots" of my system together with many other
> > > information regarding how it is configured and I put it at my
> > > homepage, at <http://www.ime.usp.br/debug/>.
> > 
> > 404
> 
> I think that you should have received a later reply telling about the typo
> in the address above. It should have been:
> <http://www.ime.usp.br/~rbrito/debug/>.

This time I hope that I have not done anything incorrectly.

> > > >From what I am seeing, it looks like the bug mentioned in
> > > <http://bugzilla.kernel.org/show_bug.cgi?id=9388>, but I don't get the
> > > stack trace that is present there and I'm just trying to use WEP
> > > instead of WPA or anything fancier.
> > 
> > Did you apply this patch?
> > 
> > 	http://bugzilla.kernel.org/attachment.cgi?id=14384
> 
> No, I did not. Is it still relevant with -rc4 or with -rc5? I still get the
> same problem with -rc5 (but I will have to test it a bit more with -rc5).

Unfortunately, this patch won't even apply with 2.6.26-rc5 as the code
seems to have changed a lot between that date and today. For instance,
there doesn't seem to exist a function called "rt2500usb_config_mac_addr"
in the rt2x00 directory (just did a grep on my unconnected iBook).

I hope that this helps Ivo to understand what the issue is:

> Just as a refresher:
> 
> * I can set everything on the iBook with the wireless key plugged;
> * The wireless key *sees* the AP, even with encryption (that is, it grabs
>   the MAC address of the AP, it (sometimes) shows me the signal strength,
>   and if I issue "iwconfig wlan0 ap any", I see both the led of the
>   wireless key blink and an increase of amount of data transmitted and
>   received with "ifconfig wlan0");
> * With everything set this way, if I do "dhclient wlan0", it doesn't get a
>   lease from the AP---actually, despite the fact that it is possible to see
>   the other point, dhclient goes, after some attempts of getting a lease,
>   to background, but no address is ever gotten;
> * Just to rule out possible problems with something sent to the address
>   255.255.255.255 (which is reported as being done by dhclient), I tried to
>   configure the address by hand via ifconfig, but, for instance, I couldn't
>   ping my AP (which I can from other computers with a rt61pci driver and a
>   PCMCIA connection);
> * As I mentioned above, I have no problems with the rt61pci driver, but the
>   USB one doesn't seem to work (unfortunately, the iBook does not have a
>   PCMCIA slot). With a notebook with an on-board Intel wireless card, I
>   *also* don't have any problems.
> 
> Well, thanks, for the help so far. I hope that we can solve this issue
> quite soon, as I need this iBook for work.
> 
> I am willing to help as much as I can and test anything (even something
> that might be "experimental"). I think that this is as good a tester that
> you can get, right? :-)

Again, I am willing to test any "intrusive" change as I still don't have
valuable data on that machine. BTW, I have firmware from Debian's
ralink-firmware package (which should be what ralink has released)
installed on this machine.

I don't know if the firmware is needed in my case or not, though (my USB
adaptor is a D-Link DWL-G122 H/W Ver. B1, F/W Ver.: 2.03---took that info
from the back of the stick).

Oh, I should mention that MacOS X is able to use the card without any
problems on this machine and with encryption. (I may have forgotten to say
that before). And, just to rule out things, I can test this USB adaptor on
a ia32 notebook running Ubuntu's Hardy Heron, but I don't know how much
patched their kernel is.


Thanks, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Ivo van Doorn]

Hi,

> > > > >From what I am seeing, it looks like the bug mentioned in
> > > > <http://bugzilla.kernel.org/show_bug.cgi?id=9388>, but I don't get the
> > > > stack trace that is present there and I'm just trying to use WEP
> > > > instead of WPA or anything fancier.
> > > 
> > > Did you apply this patch?
> > > 
> > > 	http://bugzilla.kernel.org/attachment.cgi?id=14384
> > 
> > No, I did not. Is it still relevant with -rc4 or with -rc5? I still get the
> > same problem with -rc5 (but I will have to test it a bit more with -rc5).
> 
> Unfortunately, this patch won't even apply with 2.6.26-rc5 as the code
> seems to have changed a lot between that date and today. For instance,
> there doesn't seem to exist a function called "rt2500usb_config_mac_addr"
> in the rt2x00 directory (just did a grep on my unconnected iBook).

That patch was a bugfix for 2.6.25. The bug it fixed isn't present in the 2.6.26 cycle.

> > Just as a refresher:
> > 
> > * I can set everything on the iBook with the wireless key plugged;
> > * The wireless key *sees* the AP, even with encryption (that is, it grabs
> >   the MAC address of the AP, it (sometimes) shows me the signal strength,
> >   and if I issue "iwconfig wlan0 ap any", I see both the led of the
> >   wireless key blink and an increase of amount of data transmitted and
> >   received with "ifconfig wlan0");
> > * With everything set this way, if I do "dhclient wlan0", it doesn't get a
> >   lease from the AP---actually, despite the fact that it is possible to see
> >   the other point, dhclient goes, after some attempts of getting a lease,
> >   to background, but no address is ever gotten;
> > * Just to rule out possible problems with something sent to the address
> >   255.255.255.255 (which is reported as being done by dhclient), I tried to
> >   configure the address by hand via ifconfig, but, for instance, I couldn't
> >   ping my AP (which I can from other computers with a rt61pci driver and a
> >   PCMCIA connection);
> > * As I mentioned above, I have no problems with the rt61pci driver, but the
> >   USB one doesn't seem to work (unfortunately, the iBook does not have a
> >   PCMCIA slot). With a notebook with an on-board Intel wireless card, I
> >   *also* don't have any problems.
> > 
> > Well, thanks, for the help so far. I hope that we can solve this issue
> > quite soon, as I need this iBook for work.
> > 
> > I am willing to help as much as I can and test anything (even something
> > that might be "experimental"). I think that this is as good a tester that
> > you can get, right? :-)
> 
> Again, I am willing to test any "intrusive" change as I still don't have
> valuable data on that machine. BTW, I have firmware from Debian's
> ralink-firmware package (which should be what ralink has released)
> installed on this machine.
> 
> I don't know if the firmware is needed in my case or not, though (my USB
> adaptor is a D-Link DWL-G122 H/W Ver. B1, F/W Ver.: 2.03---took that info
> from the back of the stick).

Which driver is actually being used? rt2500usb or rt73usb?
Also what was the last kernel version on which the driver worked for you?

If there was a last known working kernel, could you download the debugfs script:
	http://rt2x00.serialmonkey.com/phpBB/download/file.php?id=1969
enable debugfs and MAC80211_DEBUGFS and RT2X00_LIB_DEBUGFS in your kernel,
and run the script to dump all registers from the hardware to a file?

Please do this for both the working kernel as the non-working kernel so I can
see if there is a register initialization problem which could have been triggered
by an endian-problem.

Ivo

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Rogério Brito]

[-- Attachment #1: Type: text/plain, Size: 4789 bytes --]

Hi, Ivo.

First of all, thank you so much for helping with this issue. It is
greatly appreciated.

On Jun 08 2008, Ivo van Doorn wrote:
> Hi,
> 
> > Unfortunately, this patch won't even apply with 2.6.26-rc5 as the code
> > seems to have changed a lot between that date and today. For instance,
> > there doesn't seem to exist a function called "rt2500usb_config_mac_addr"
> > in the rt2x00 directory (just did a grep on my unconnected iBook).
> 
> That patch was a bugfix for 2.6.25. The bug it fixed isn't present in
> the 2.6.26 cycle.

Nice to know that. I saw that the code has changed quite a good amount...

Anyway, I don't know if you saw the various outputs that I put at my
homepage (lots of dmesgs with the 2.6.26-rc4 kernel):
http://www.ime.usp.br/~rbrito/debug/

(Not included here because the list has limits on the size of e-mails, AFAIK).

> > > Just as a refresher:
> > > 
> > > * I can set everything on the iBook with the wireless key plugged;
> > > * The wireless key *sees* the AP, even with encryption (that is, it grabs
> > >   the MAC address of the AP, it (sometimes) shows me the signal strength,
> > >   and if I issue "iwconfig wlan0 ap any", I see both the led of the
> > >   wireless key blink and an increase of amount of data transmitted and
> > >   received with "ifconfig wlan0");

Just a comment here: it seems that with the -rc5 kernel I don't get
always the wireless key seeing the AP... Sometimes it shows "Not
Associated". I will try to reproduce that with an -rc4 kernel again.

> > > * With everything set this way, if I do "dhclient wlan0", it doesn't get a
> > >   lease from the AP---actually, despite the fact that it is possible to see
> > >   the other point, dhclient goes, after some attempts of getting a lease,
> > >   to background, but no address is ever gotten;
> > > * Just to rule out possible problems with something sent to the address
> > >   255.255.255.255 (which is reported as being done by dhclient), I tried to
> > >   configure the address by hand via ifconfig, but, for instance, I couldn't
> > >   ping my AP (which I can from other computers with a rt61pci driver and a
> > >   PCMCIA connection);
> > > * As I mentioned above, I have no problems with the rt61pci driver, but the
> > >   USB one doesn't seem to work (unfortunately, the iBook does not have a
> > >   PCMCIA slot). With a notebook with an on-board Intel wireless card, I
> > >   *also* don't have any problems.
> > > 
> > > Well, thanks, for the help so far. I hope that we can solve this issue
> > > quite soon, as I need this iBook for work.
> > > 
> > > I am willing to help as much as I can and test anything (even something
> > > that might be "experimental"). I think that this is as good a tester that
> > > you can get, right? :-)
> > 
> > Again, I am willing to test any "intrusive" change as I still don't have
> > valuable data on that machine. BTW, I have firmware from Debian's
> > ralink-firmware package (which should be what ralink has released)
> > installed on this machine.
> > 
> > I don't know if the firmware is needed in my case or not, though (my USB
> > adaptor is a D-Link DWL-G122 H/W Ver. B1, F/W Ver.: 2.03---took that info
> > from the back of the stick).
> 
> Which driver is actually being used? rt2500usb or rt73usb?

The driver that actually gets loaded is rt2500usb. I tried rmmod'ing
rt2500usb and loading rt73usb, but a quick iwconfig doesn't even show
the interfaces.

> Also what was the last kernel version on which the driver worked for
> you?

Unfortunately, I don't have any kernel for which this has worked for
me. I just did an experiment: I plugged the adaptor on a ia32 notebook
where a rt61pci works fine (it is running Ubuntu's Hardy---well,
actually, there are some problems, but I can get to that latter), but
the USB key was non working with the symptoms that I described above.

> If there was a last known working kernel, could you download the debugfs script:
> 	http://rt2x00.serialmonkey.com/phpBB/download/file.php?id=1969
> enable debugfs and MAC80211_DEBUGFS and RT2X00_LIB_DEBUGFS in your kernel,
> and run the script to dump all registers from the hardware to a file?

I just grabbed the script. Here is the output with the options enabled
and the results are attached here.

> Please do this for both the working kernel as the non-working kernel
> so I can see if there is a register initialization problem which could
> have been triggered by an endian-problem.

That was my first suspicion: and endianess problem. But now I am not so
sure.


Thanks again, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

[-- Attachment #2: output-regdump.txt --]
[-- Type: text/plain, Size: 3665 bytes --]

2.6.26-rc5-2
driver: rt2500usb
version: 2.1.4
compiled: Jun  8 2008 17:08:54
dev_flags: 0x00000e2f
rt chip: 1201
rf chip: 0005
revision:00000005

csr length: 128
eeprom length: 53
bbp length: 96
rf length: 5

csr
0 :0x00050000
1 :0x00040000
2 :0x13000000
3 :0xe9460000
4 :0x8a8d0000
5 :0x13000000
6 :0x51460000
7 :0x65100000
8 :0x09800000
9 :0xff1d0000
10 :0x00140000
11 :0x000a0000
12 :0x013a0000
13 :0x11110000
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16 :0x00000000
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24 :0x00000000
25 :0x00000000
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27 :0x00000000
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32 :0x1ec00000
33 :0xb1620000
34 :0x007e0000
35 :0xb3af0000
36 :0xb3aa0000
37 :0x8c8d0000
38 :0x8b8a0000
39 :0x86870000
40 :0x00850000
41 :0x01620000
42 :0x000a0000
43 :0x00000000
44 :0x140a0000
45 :0x70380000
46 :0x0c130000
47 :0x06090000
48 :0x03050000
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50 :0xfa000000
51 :0x000b0000
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96 :0x12210000
97 :0x00030000
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100 :0x000f0000
101 :0x82060000
102 :0x821e0000
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105 :0x0e070000
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120 :0x00000000
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122 :0x02e10000
123 :0x00000000
124 :0x00000000
125 :0x00000000
126 :0x00000000
127 :0x00000422

eeprom
0 :0x2570
1 :0x0104
2 :0x1300
3 :0xe946
4 :0x8a8d
5 :0xffff
6 :0xffff
7 :0xffff
8 :0xffff
9 :0xffff
10 :0xffff
11 :0x2829
12 :0xfff0
13 :0x00ff
14 :0x112c
15 :0x1518
16 :0x1618
17 :0x3e00
18 :0xffff
19 :0xffff
20 :0xffff
21 :0xffff
22 :0xffff
23 :0xffff
24 :0xffff
25 :0xffff
26 :0xffff
27 :0xffff
28 :0xffff
29 :0xffff
30 :0x1717
31 :0x1717
32 :0x1717
33 :0x1717
34 :0x1617
35 :0x1616
36 :0x1616
37 :0xffff
38 :0xffff
39 :0xffff
40 :0xffff
41 :0xffff
42 :0xffff
43 :0xffff
44 :0xffff
45 :0xffff
46 :0xffff
47 :0xffff
48 :0x0032
49 :0x6880
50 :0x3850
51 :0x6f5f
52 :0xfa00

bbp
0 :0x13
1 :0x55
2 :0x06
3 :0x02
4 :0x19
5 :0x0b
6 :0x10
7 :0x00
8 :0x00
9 :0x00
10 :0x00
11 :0x04
12 :0x01
13 :0xa8
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19 :0xff
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32 :0xb9
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46 :0x70
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48 :0x04
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51 :0x18
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56 :0x08
57 :0x10
58 :0x08
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62 :0x00
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69 :0x00
70 :0x46
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73 :0x00
74 :0xd4
75 :0xff
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78 :0x08
79 :0x00
80 :0x00
81 :0x05
82 :0x14
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84 :0xc0
85 :0x10
86 :0xcf
87 :0x00
88 :0x00
89 :0x00
90 :0x00
91 :0x00
92 :0x00
93 :0x00
94 :0x00
95 :0x00

rf
0 :0x00000000
1 :0x00022010
2 :0x000008a6
3 :0x00062d11
4 :0x00000e07

[-- Attachment #3: ifconfig-wlan0.txt --]
[-- Type: text/plain, Size: 325 bytes --]

wlan0     Link encap:Ethernet  HWaddr 00:13:46:e9:8d:8a  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)


[-- Attachment #4: iwlist-wlan0-scan.txt --]
[-- Type: text/plain, Size: 561 bytes --]

wlan0     Scan completed :
          Cell 01 - Address: 00:13:46:51:10:65
                    ESSID:"default"
                    Mode:Master
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=51/100  Signal level=-53 dBm  
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Extra:tsf=0000005b34700179


[-- Attachment #5: iwconfig-wlan0.txt --]
[-- Type: text/plain, Size: 463 bytes --]

wlan0     IEEE 802.11  ESSID:"default"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: Not-Associated   
          Tx-Power=22 dBm   
          Retry min limit:7   RTS thr:off   Fragment thr=2352 B   
          Encryption key:XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XX
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0


[-- Attachment #6: levanta.sh --]
[-- Type: application/x-sh, Size: 121 bytes --]

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Ivo van Doorn]

Hi,

> > > Unfortunately, this patch won't even apply with 2.6.26-rc5 as the code
> > > seems to have changed a lot between that date and today. For instance,
> > > there doesn't seem to exist a function called "rt2500usb_config_mac_addr"
> > > in the rt2x00 directory (just did a grep on my unconnected iBook).
> > 
> > That patch was a bugfix for 2.6.25. The bug it fixed isn't present in
> > the 2.6.26 cycle.
> 
> Nice to know that. I saw that the code has changed quite a good amount...

Hehe, yes rt2x00 code is moving quit a lot per kernel release.

> Anyway, I don't know if you saw the various outputs that I put at my
> homepage (lots of dmesgs with the 2.6.26-rc4 kernel):
> http://www.ime.usp.br/~rbrito/debug/

Yeah, saw them.

> > > I don't know if the firmware is needed in my case or not, though (my USB
> > > adaptor is a D-Link DWL-G122 H/W Ver. B1, F/W Ver.: 2.03---took that info
> > > from the back of the stick).
> > 
> > Which driver is actually being used? rt2500usb or rt73usb?
> 
> The driver that actually gets loaded is rt2500usb. I tried rmmod'ing
> rt2500usb and loading rt73usb, but a quick iwconfig doesn't even show
> the interfaces.

That means it really is a rt2500usb device. ;)

> > Also what was the last kernel version on which the driver worked for
> > you?
> 
> Unfortunately, I don't have any kernel for which this has worked for
> me. I just did an experiment: I plugged the adaptor on a ia32 notebook
> where a rt61pci works fine (it is running Ubuntu's Hardy---well,
> actually, there are some problems, but I can get to that latter), but
> the USB key was non working with the symptoms that I described above.

That is most unfortunate, since register dumps are usually most usefull when
I can compare the actual register values between a working and non-working setup.
However I just realized I had a D-Link stick myself, and apparently I have the exact
same model/type. I'll compile a 2.6.26-rc5 kernel and see if that stick works for me,
if so, I have the working register dump. And if not, then we can rule out endian problems.

> > If there was a last known working kernel, could you download the debugfs script:
> > 	http://rt2x00.serialmonkey.com/phpBB/download/file.php?id=1969
> > enable debugfs and MAC80211_DEBUGFS and RT2X00_LIB_DEBUGFS in your kernel,
> > and run the script to dump all registers from the hardware to a file?
> 
> I just grabbed the script. Here is the output with the options enabled
> and the results are attached here.

Thanks.

Ivo

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Rogério Brito]

Hi, Ivo.

Thank you very much for your very kind reply.

On Jun 09 2008, Ivo van Doorn wrote:
> Hi,
> 
> > Nice to know that. I saw that the code has changed quite a good
> > amount...
> 
> Hehe, yes rt2x00 code is moving quit a lot per kernel release.

Granted. :-) You have been working quite a lot. :-)

> > Anyway, I don't know if you saw the various outputs that I put at my
> > homepage (lots of dmesgs with the 2.6.26-rc4 kernel):
> > http://www.ime.usp.br/~rbrito/debug/
> 
> Yeah, saw them.

Hope that they prove somewhat useful.

> > > > I don't know if the firmware is needed in my case or not, though (my USB
> > > > adaptor is a D-Link DWL-G122 H/W Ver. B1, F/W Ver.: 2.03---took that info
> > > > from the back of the stick).
> > > 
> > > Which driver is actually being used? rt2500usb or rt73usb?
> > 
> > The driver that actually gets loaded is rt2500usb. I tried rmmod'ing
> > rt2500usb and loading rt73usb, but a quick iwconfig doesn't even show
> > the interfaces.
> 
> That means it really is a rt2500usb device. ;)

Yes. :) I have firmware files installed under /lib/firmware also (taken
from Debian's unstable release---which is what I am using). Are they
needed?

> > > Also what was the last kernel version on which the driver worked for
> > > you?
> > 
> > Unfortunately, I don't have any kernel for which this has worked for
> > me. I just did an experiment: I plugged the adaptor on a ia32
> > notebook where a rt61pci works fine (it is running Ubuntu's
> > Hardy---well, actually, there are some problems, but I can get to
> > that latter), but the USB key was non working with the symptoms that
> > I described above.
> 
> That is most unfortunate, since register dumps are usually most usefull when
> I can compare the actual register values between a working and
> non-working setup.

Ok. I will try to compile an 2.6.18 kernel with the out-of-tree modules.
I hope that this can prove useful. I plan on getting register dumps (and
I also hope that it will work; perhaps getting the register values with
the legacy rt2500 drivers would help you, if they are available at all.
I don't even know if they will work here, but I guess that I will give
them a shot).

> However I just realized I had a D-Link stick myself, and apparently I have the exact
> same model/type. I'll compile a 2.6.26-rc5 kernel and see if that stick works for me,
> if so, I have the working register dump. And if not, then we can rule
> out endian problems.

Thank you so much.

I will compile other versions of the kernel just to see if I can see the
status of the driver with other versions of kernels/drivers. Since I
just installed a cross-compiler yesterday night on a *much* faster
machine, I don't have to wait more than 1 hour for each kernel
modification that I make (this iBook is slow).

As I said earlier, I plan on doing whatever test you want me to.


Thanks, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Rogério Brito]

Hi again, Ivo.

On Jun 08 2008, Rogério Brito wrote:
> On Jun 09 2008, Ivo van Doorn wrote:
> > However I just realized I had a D-Link stick myself, and apparently
> > I have the exact same model/type. I'll compile a 2.6.26-rc5 kernel
> > and see if that stick works for me, if so, I have the working
> > register dump. And if not, then we can rule out endian problems.

I just observed one thing: with a 2.6.26-rc5 kernel, I always get
"Access Point: Not-Associated" with that script that I sent you
earlier.  On the other hand, with 2.6.26-rc4, I can actually associate
to the AP (i.e., I see its MAC address).

I may have changed some parameters for the kernel compilation between
the two of them. I will see if I can reproduce the problem with the same
.config file for the kernel.


Thanks, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Rogério Brito]

Hi, yet again, Ivo.

On Jun 09 2008, Ivo van Doorn wrote:
> > Unfortunately, I don't have any kernel for which this has worked for
> > me. I just did an experiment: I plugged the adaptor on a ia32 notebook
> > where a rt61pci works fine (it is running Ubuntu's Hardy---well,
> > actually, there are some problems, but I can get to that latter), but
> > the USB key was non working with the symptoms that I described above.

Correction here: I just went to the ia32 notebook again and, now, running
Ubuntu's hardy kernel (which is a patched 2.6.24 kernel, AFAIK---yes, it
is; just checked it) I could make the D-Link stick work fine.

Unfortunately, it seems that while Ubuntu has debugfs compiled, it doesn't
have the rt2x00 debug information compiled in the standard kernel (I will
see if they have any debug version of their kernel---this ia32 notebook is a
Celeron 466MHz and it is also slow at compiling kernels, just as the iBook
is and it is my parents' only machine).

Unfortunately, I can't get your script to run here, since I got:

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
root@rbrito-laptop:~# LANG= bash Desktop/regdump.txt 
ls: cannot access /debug/ieee80211/phy*/rt[0-9]*/: No such file or directory
root@rbrito-laptop:~# 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

> That is most unfortunate, since register dumps are usually most usefull when
> I can compare the actual register values between a working and non-working setup.
> However I just realized I had a D-Link stick myself, and apparently I have the exact
> same model/type. I'll compile a 2.6.26-rc5 kernel and see if that stick works for me,
> if so, I have the working register dump. And if not, then we can rule out
> endian problems.

Well, I think that I was a bit hasty with my tests on ia32 and this Ubuntu
notebook.

Here is, BTW, the output of iwconfig on this machine, where I could get
the stick working:

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
root@rbrito-laptop:~# iwconfig
lo        no wireless extensions.

wmaster0  no wireless extensions.

ra0       IEEE 802.11g  ESSID:""  
          Mode:Managed  Frequency:2.437 GHz  Access Point:
          00:13:46:51:10:65   
          Bit Rate=2 Mb/s   Tx-Power=27 dBm   
          Retry min limit:7   RTS thr:off   Fragment thr=2346 B   
          Encryption key:XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XX
          Link Quality=71/100  Signal level=-50 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

wmaster1  no wireless extensions.

wlan0     IEEE 802.11g  ESSID:"default"  
          Mode:Managed  Frequency:2.437 GHz  Access Point:
          00:13:46:51:10:65   
          Bit Rate=54 Mb/s   Tx-Power=27 dBm   
          Retry min limit:7   RTS thr:off   Fragment thr=2346 B   
          Encryption key:XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XX
          Link Quality=47/100  Signal level=-77 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

root@rbrito-laptop:~# 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Notice that the field "Link Quality" is quite lower with the USB stick.

As you may have already noticed, I really do want to get this straightened,
so that I can use my iBook at work and will do many things to get this to
work well (and to have your drivers better in the short term).


Thanks, Rogério Brito.

P.S.: This message was written with the USB stick and an SSH connection. :-)
-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Rogério Brito]

Hi, Ivo and John.

I don't know if you received my earlier message.

On Jun 08 2008, Rogério Brito wrote:
> Correction here: I just went to the ia32 notebook again and, now, running
> Ubuntu's hardy kernel (which is a patched 2.6.24 kernel, AFAIK---yes, it
> is; just checked it) I could make the D-Link stick work fine.

The only problem that I had is that I had to reissue the command "iwconfig
wlan0 ap any" or, otherwise, the connection with the AP would be dropped (I
can get a log for you to peruse, if you wish).

> On Jun 09 2008, Ivo van Doorn wrote:
> > That is most unfortunate, since register dumps are usually most usefull
> > when I can compare the actual register values between a working and
> > non-working setup.  However I just realized I had a D-Link stick
> > myself, and apparently I have the exact same model/type. I'll compile a
> > 2.6.26-rc5 kernel and see if that stick works for me, if so, I have the
> > working register dump. And if not, then we can rule out endian
> > problems.
> 

Oh, these endianness problems are a headache. I just fixed some in one
small program in lame (the MP3 compressor), but in the end, I finally
won. :-)

Anyway, did you have some time to check your D-Link stick? I am willing to
test more things or other kernel trees, if that is helpful to the project.


Regards, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[John W. Linville]

On Wed, Jun 11, 2008 at 06:36:05AM -0300, Rogério Brito wrote:
> Hi, Ivo and John.
> 
> I don't know if you received my earlier message.
> 
> On Jun 08 2008, Rogério Brito wrote:
> > Correction here: I just went to the ia32 notebook again and, now, running
> > Ubuntu's hardy kernel (which is a patched 2.6.24 kernel, AFAIK---yes, it
> > is; just checked it) I could make the D-Link stick work fine.
> 
> The only problem that I had is that I had to reissue the command "iwconfig
> wlan0 ap any" or, otherwise, the connection with the AP would be dropped (I
> can get a log for you to peruse, if you wish).

What does "iwconfig wlan0" show _before_ doing the "iwconfig wlan0 ap any"?

John
-- 
John W. Linville
linville@tuxdriver.com

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Ivo van Doorn]

Hi,

> Oh, these endianness problems are a headache. I just fixed some in one
> small program in lame (the MP3 compressor), but in the end, I finally
> won. :-)
> 
> Anyway, did you have some time to check your D-Link stick? I am willing to
> test more things or other kernel trees, if that is helpful to the project.

Kernel is compiling right now, I did attempt to test this earlier,
but something has changed in the IDE/SATA drivers or something
because I 2.6.26 no longer recognized my hard disk during boot which
obviously makes booting quite complicated. ;)

Ivo

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Rogério Brito]

Hi, Ivo and John.

On Jun 11 2008, John W. Linville wrote:
> On Wed, Jun 11, 2008 at 06:36:05AM -0300, Rogério Brito wrote:
> > I don't know if you received my earlier message.
> > 
> > On Jun 08 2008, Rogério Brito wrote:
> > > Correction here: I just went to the ia32 notebook again and, now,
> > > running Ubuntu's hardy kernel (which is a patched 2.6.24 kernel,
> > > AFAIK---yes, it is; just checked it) I could make the D-Link stick
> > > work fine.
> > 
> > The only problem that I had is that I had to reissue the command
> > "iwconfig wlan0 ap any" or, otherwise, the connection with the AP
> > would be dropped (I can get a log for you to peruse, if you wish).

Let me be a bit more detailed here: when I connected the D-Link stick on
the ia32 notebook with Ubuntu's 2.6.24 kernel, if I *didn't* issue the
command "iwconfig wlan0 ap any" *periodically* (say, with
     # while true; iwconfig wlan0 ap any; sleep 10; done
), then the connection would die: the dmesg logs would indicate that the
AP lost connection with the stick.

By the way, I see this exactly same behaviour with the rt61pci driver on
the same machine (with the only difference being that the interface name
is ra0 instead of wlan0): I even put a cron job to issue the command
every minute, so that my parents (which are using a PCMCIA card that
uses the rt61pci) don't have to learn about the nasty things of
networking.

Anyway, I would be happy to get the D-Link USB stick getting a lease
from the AP as a first step. This way, I think that I could help you
both much more than what I can now, and I would be a step closer into
the direction of ditching MacOS X.

> What does "iwconfig wlan0" show _before_ doing the "iwconfig wlan0 ap any"?

Actually, it shows the output that I listed before in the mail that had
the script "levanta.sh" attached (which was blocked by many people's
e-mail servers): both interfaces up and configured with the same AP (but
the ra0 one with the DHCP daemon disabled).

(In that message, I mentioned something along the lines: notice that the
Signal Strength is reported to be higher on the ra0 interface than on
the wlan0, despite both working on ia32).


Regards, Rogério Brito.

P.S.: Sorry for an e-mail not more detailed. I'm not with physical
access to my parent's notebook.
-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Rogério Brito]

Hi, Ivo.

On Jun 11 2008, Ivo van Doorn wrote:
> Hi,
> 
> > Oh, these endianness problems are a headache. I just fixed some in one
> > small program in lame (the MP3 compressor), but in the end, I finally
> > won. :-)

Just for the record, it is an ABX tool that I'm refactoring so that you
can compare two songs (one original and one compressed) and choose (from
a randomly chosen one) which is the original track. You might be
surprised at how LAME works well with even very low bitrates.

The program wasn't working with big-endian arches, but I fixed that
yesterday. :-)

> > Anyway, did you have some time to check your D-Link stick? I am
> > willing to test more things or other kernel trees, if that is
> > helpful to the project.
> 
> Kernel is compiling right now,

Nice. Thank you.

> I did attempt to test this earlier, but something has changed in the
> IDE/SATA drivers or something because I 2.6.26 no longer recognized my
> hard disk during boot which obviously makes booting quite
> complicated. ;)

Obviously. :-) I'm waiting to get rid of MacOS X from this iBook. I
still want it to be with me for quite some time.


Thank you very much, Rogério.

P.S.: If you want me to test anything else, like a git tree or
something, please, don't hesitate to ask. I want the driver to work for
me (of course) and to have it work better for all the people with ra
wireless chips.
-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Ivo van Doorn]

> > > Anyway, did you have some time to check your D-Link stick? I am
> > > willing to test more things or other kernel trees, if that is
> > > helpful to the project.
> > 
> > Kernel is compiling right now,
> 
> Nice. Thank you.

Unfortunately I haven't that much time to test it, and the allmodconfig kernel
is still providing the same problems as my usual configuration. I am a bit closer
at tracking this down, but I won't have another shot at this before the weekend :S

Ivo

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Rogério Brito]

[-- Attachment #1: Type: text/plain, Size: 1544 bytes --]

Hi, Ivo.

I finally found a x86-64 (little-endian) where I could test the D-Link
stick.

On Jun 12 2008, Ivo van Doorn wrote:
> Unfortunately I haven't that much time to test it, and the
> allmodconfig kernel is still providing the same problems as my usual
> configuration.

Thanks quite unfortunate. For me, I can't make -rc5 associate with the
AP, which is a regression regarding -rc4. With -rc4, on this x86-64
machine, at least I could associate and everything looked fine, but like
with the iBook, I can't get a dhcp lease from the AP. :-(

(BTW, I think that I can do some sessions of "git bisect" to find which
patch has modified this behavior).

I compiled the kernel with debugfs, like you instructed me and got a
register dump of the kernel on this machine and looking at it, there
seems to have some endianness things going on, but I am not qualified to
say anything about this.

> I am a bit closer at tracking this down, but I won't have another shot
> at this before the weekend :S

:-(

Well, I'm attaching the diff between the regdump from the earlier try on
the iBook and the regdump from this x86-64. I think that some
conclusions may be drawn from it, since it seems to be your domain of
expertise.


Thanks, Rogério Brito.

P.S.: If John can say something that you would like me to try, I will do
my best.
-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

[-- Attachment #2: diff-regdump.txt --]
[-- Type: text/plain, Size: 3377 bytes --]

--- output-regdump.txt	2008-06-13 00:52:11.000000000 -0300
+++ regdump-x86-64.txt	2008-06-13 00:31:32.000000000 -0300
@@ -1,7 +1,7 @@
-2.6.26-rc5-2
+2.6.26-rc4-1
 driver: rt2500usb
 version: 2.1.4
-compiled: Jun  8 2008 17:08:54
+compiled: Jun 13 2008 00:11:03
 dev_flags: 0x00000e2f
 rt chip: 1201
 rf chip: 0005
@@ -13,29 +13,29 @@
 rf length: 5
 
 csr
-0 :0x00050000
-1 :0x00040000
-2 :0x13000000
-3 :0xe9460000
-4 :0x8a8d0000
-5 :0x13000000
-6 :0x51460000
-7 :0x65100000
-8 :0x09800000
-9 :0xff1d0000
-10 :0x00140000
-11 :0x000a0000
-12 :0x013a0000
-13 :0x11110000
-14 :0x1e110000
-15 :0x01ee0000
+0 :0x00000005
+1 :0x00000004
+2 :0x00001300
+3 :0x0000e946
+4 :0x00008a8d
+5 :0x00001300
+6 :0x00005146
+7 :0x00006510
+8 :0x00000980
+9 :0x0000ff1d
+10 :0x00000014
+11 :0x0000000a
+12 :0x0000013a
+13 :0x00001111
+14 :0x00001e11
+15 :0x000001ee
 16 :0x00000000
-17 :0x01fe0000
-18 :0x005a0000
-19 :0xff000000
-20 :0x00020000
-21 :0x1e460000
-22 :0x00530000
+17 :0x000001fe
+18 :0x0000005a
+19 :0x0000ff00
+20 :0x00000002
+21 :0x00001e46
+22 :0x00000053
 23 :0x00000000
 24 :0x00000000
 25 :0x00000000
@@ -45,28 +45,28 @@
 29 :0x00000000
 30 :0x00000000
 31 :0x00000000
-32 :0x1ec00000
-33 :0xb1620000
-34 :0x007e0000
-35 :0xb3af0000
-36 :0xb3aa0000
-37 :0x8c8d0000
-38 :0x8b8a0000
-39 :0x86870000
-40 :0x00850000
-41 :0x01620000
-42 :0x000a0000
+32 :0x00001ec0
+33 :0x0000b162
+34 :0x0000007e
+35 :0x0000b3af
+36 :0x0000b3aa
+37 :0x00008c8d
+38 :0x00008b8a
+39 :0x00008687
+40 :0x00000085
+41 :0x00000162
+42 :0x0000000a
 43 :0x00000000
-44 :0x140a0000
-45 :0x70380000
-46 :0x0c130000
-47 :0x06090000
-48 :0x03050000
-49 :0x02030000
-50 :0xfa000000
-51 :0x000b0000
-52 :0x00030000
-53 :0xe78f0000
+44 :0x0000140a
+45 :0x00007038
+46 :0x00000c13
+47 :0x00000609
+48 :0x00000305
+49 :0x00000203
+50 :0x0000fa00
+51 :0x0000000b
+52 :0x00000003
+53 :0x0000e78f
 54 :0x00000000
 55 :0x00000000
 56 :0x00000000
@@ -109,38 +109,38 @@
 93 :0x00000000
 94 :0x00000000
 95 :0x00000000
-96 :0x12210000
-97 :0x00030000
+96 :0x00001221
+97 :0x00000003
 98 :0x00000000
 99 :0x00000000
-100 :0x000f0000
-101 :0x82060000
-102 :0x821e0000
-103 :0x91000000
+100 :0x0000000f
+101 :0x00008206
+102 :0x0000821e
+103 :0x00009100
 104 :0x00000000
-105 :0x0e070000
-106 :0x54000000
+105 :0x00000e07
+106 :0x00005400
 107 :0x00000000
 108 :0x00000000
 109 :0x00000000
 110 :0x00000000
 111 :0x00000000
-112 :0x032c0000
-113 :0xfb580000
-114 :0x63110000
-115 :0x0a1f0000
+112 :0x000000ad
+113 :0x00009bcf
+114 :0x0000186c
+115 :0x000002e8
 116 :0x00000000
 117 :0x00000000
 118 :0x00000000
 119 :0x00000000
 120 :0x00000000
 121 :0x00000000
-122 :0x02e10000
+122 :0x0000009c
 123 :0x00000000
 124 :0x00000000
 125 :0x00000000
 126 :0x00000000
-127 :0x00000422
+127 :0x00000000
 
 eeprom
 0 :0x2570
@@ -199,7 +199,7 @@
 
 bbp
 0 :0x13
-1 :0x55
+1 :0x63
 2 :0x06
 3 :0x02
 4 :0x19
@@ -211,7 +211,7 @@
 10 :0x00
 11 :0x04
 12 :0x01
-13 :0xa8
+13 :0x70
 14 :0x1a
 15 :0x30
 16 :0xac
@@ -227,7 +227,7 @@
 26 :0x08
 27 :0x23
 28 :0x18
-29 :0x18
+29 :0x6e
 30 :0x10
 31 :0x2b
 32 :0xb9
@@ -240,20 +240,20 @@
 39 :0xc4
 40 :0x02
 41 :0x60
-42 :0x09
-43 :0x34
-44 :0x0b
-45 :0x6e
-46 :0x70
+42 :0x0f
+43 :0x0f
+44 :0x16
+45 :0x65
+46 :0xeb
 47 :0x0a
 48 :0x04
-49 :0x02
-50 :0x68
-51 :0x18
-52 :0x04
+49 :0x03
+50 :0xf8
+51 :0x1d
+52 :0x2e
 53 :0x10
 54 :0x18
-55 :0x2d
+55 :0x7d
 56 :0x08
 57 :0x10
 58 :0x08

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Rogério Brito]

[-- Attachment #1: Type: text/plain, Size: 1210 bytes --]

Hi again, Ivo and John.

I have finally made the rt2x00 work on the x86-64 with the kernel
2.6.25.

Just as a reminder:

* with kernel 2.6.26-rc4, I could associate with the AP, but could not
  get a DHCP lease;
* with kernel 2.6.26-rc5, I could not even associate with the AP.

So, it seems that we have some regressions here. :-(

> Well, I'm attaching the diff between the regdump from the earlier try
> on the iBook and the regdump from this x86-64. I think that some
> conclusions may be drawn from it, since it seems to be your domain of
> expertise.

I'm attaching here 3 files: the old output from regdump (taken from the
ibook), the new, working (with kernel 2.6.25.4) regdump and their diff.
Notice that there are some inverted values there, but they are shorts
(i.e., 16-bit integers) that are inverted, instead of the inverted
values being bytes.

I think that this may mean that your work may be easier on debugging the
driver (I hope so!).


Thanks for any help, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

[-- Attachment #2: old.output-regdump.txt --]
[-- Type: text/plain, Size: 3665 bytes --]

2.6.26-rc5-2
driver: rt2500usb
version: 2.1.4
compiled: Jun  8 2008 17:08:54
dev_flags: 0x00000e2f
rt chip: 1201
rf chip: 0005
revision:00000005

csr length: 128
eeprom length: 53
bbp length: 96
rf length: 5

csr
0 :0x00050000
1 :0x00040000
2 :0x13000000
3 :0xe9460000
4 :0x8a8d0000
5 :0x13000000
6 :0x51460000
7 :0x65100000
8 :0x09800000
9 :0xff1d0000
10 :0x00140000
11 :0x000a0000
12 :0x013a0000
13 :0x11110000
14 :0x1e110000
15 :0x01ee0000
16 :0x00000000
17 :0x01fe0000
18 :0x005a0000
19 :0xff000000
20 :0x00020000
21 :0x1e460000
22 :0x00530000
23 :0x00000000
24 :0x00000000
25 :0x00000000
26 :0x00000000
27 :0x00000000
28 :0x00000000
29 :0x00000000
30 :0x00000000
31 :0x00000000
32 :0x1ec00000
33 :0xb1620000
34 :0x007e0000
35 :0xb3af0000
36 :0xb3aa0000
37 :0x8c8d0000
38 :0x8b8a0000
39 :0x86870000
40 :0x00850000
41 :0x01620000
42 :0x000a0000
43 :0x00000000
44 :0x140a0000
45 :0x70380000
46 :0x0c130000
47 :0x06090000
48 :0x03050000
49 :0x02030000
50 :0xfa000000
51 :0x000b0000
52 :0x00030000
53 :0xe78f0000
54 :0x00000000
55 :0x00000000
56 :0x00000000
57 :0x00000000
58 :0x00000000
59 :0x00000000
60 :0x00000000
61 :0x00000000
62 :0x00000000
63 :0x00000000
64 :0x00000000
65 :0x00000000
66 :0x00000000
67 :0x00000000
68 :0x00000000
69 :0x00000000
70 :0x00000000
71 :0x00000000
72 :0x00000000
73 :0x00000000
74 :0x00000000
75 :0x00000000
76 :0x00000000
77 :0x00000000
78 :0x00000000
79 :0x00000000
80 :0x00000000
81 :0x00000000
82 :0x00000000
83 :0x00000000
84 :0x00000000
85 :0x00000000
86 :0x00000000
87 :0x00000000
88 :0x00000000
89 :0x00000000
90 :0x00000000
91 :0x00000000
92 :0x00000000
93 :0x00000000
94 :0x00000000
95 :0x00000000
96 :0x12210000
97 :0x00030000
98 :0x00000000
99 :0x00000000
100 :0x000f0000
101 :0x82060000
102 :0x821e0000
103 :0x91000000
104 :0x00000000
105 :0x0e070000
106 :0x54000000
107 :0x00000000
108 :0x00000000
109 :0x00000000
110 :0x00000000
111 :0x00000000
112 :0x032c0000
113 :0xfb580000
114 :0x63110000
115 :0x0a1f0000
116 :0x00000000
117 :0x00000000
118 :0x00000000
119 :0x00000000
120 :0x00000000
121 :0x00000000
122 :0x02e10000
123 :0x00000000
124 :0x00000000
125 :0x00000000
126 :0x00000000
127 :0x00000422

eeprom
0 :0x2570
1 :0x0104
2 :0x1300
3 :0xe946
4 :0x8a8d
5 :0xffff
6 :0xffff
7 :0xffff
8 :0xffff
9 :0xffff
10 :0xffff
11 :0x2829
12 :0xfff0
13 :0x00ff
14 :0x112c
15 :0x1518
16 :0x1618
17 :0x3e00
18 :0xffff
19 :0xffff
20 :0xffff
21 :0xffff
22 :0xffff
23 :0xffff
24 :0xffff
25 :0xffff
26 :0xffff
27 :0xffff
28 :0xffff
29 :0xffff
30 :0x1717
31 :0x1717
32 :0x1717
33 :0x1717
34 :0x1617
35 :0x1616
36 :0x1616
37 :0xffff
38 :0xffff
39 :0xffff
40 :0xffff
41 :0xffff
42 :0xffff
43 :0xffff
44 :0xffff
45 :0xffff
46 :0xffff
47 :0xffff
48 :0x0032
49 :0x6880
50 :0x3850
51 :0x6f5f
52 :0xfa00

bbp
0 :0x13
1 :0x55
2 :0x06
3 :0x02
4 :0x19
5 :0x0b
6 :0x10
7 :0x00
8 :0x00
9 :0x00
10 :0x00
11 :0x04
12 :0x01
13 :0xa8
14 :0x1a
15 :0x30
16 :0xac
17 :0x00
18 :0x18
19 :0xff
20 :0x1e
21 :0x18
22 :0x18
23 :0x08
24 :0x80
25 :0x50
26 :0x08
27 :0x23
28 :0x18
29 :0x18
30 :0x10
31 :0x2b
32 :0xb9
33 :0x55
34 :0x12
35 :0x50
36 :0x11
37 :0x05
38 :0x00
39 :0xc4
40 :0x02
41 :0x60
42 :0x09
43 :0x34
44 :0x0b
45 :0x6e
46 :0x70
47 :0x0a
48 :0x04
49 :0x02
50 :0x68
51 :0x18
52 :0x04
53 :0x10
54 :0x18
55 :0x2d
56 :0x08
57 :0x10
58 :0x08
59 :0x02
60 :0x3e
61 :0x5f
62 :0x00
63 :0x00
64 :0x01
65 :0x03
66 :0x00
67 :0x00
68 :0x00
69 :0x00
70 :0x46
71 :0x00
72 :0x00
73 :0x00
74 :0xd4
75 :0xff
76 :0x19
77 :0x05
78 :0x08
79 :0x00
80 :0x00
81 :0x05
82 :0x14
83 :0x50
84 :0xc0
85 :0x10
86 :0xcf
87 :0x00
88 :0x00
89 :0x00
90 :0x00
91 :0x00
92 :0x00
93 :0x00
94 :0x00
95 :0x00

rf
0 :0x00000000
1 :0x00022010
2 :0x000008a6
3 :0x00062d11
4 :0x00000e07

[-- Attachment #3: new.output-regdump.txt --]
[-- Type: text/plain, Size: 3664 bytes --]

2.6.25.4-1
driver: rt2500usb
version: 2.0.14
compiled: Jun 13 2008 01:33:03
dev_flags: 0x0001012f
rt chip: 1201
rf chip: 0005
revision:00000005

csr length: 128
eeprom length: 53
bbp length: 96
rf length: 5

csr
0 :0x00000005
1 :0x00000004
2 :0x00001300
3 :0x0000e946
4 :0x00008a8d
5 :0x00001300
6 :0x00005146
7 :0x00006510
8 :0x00000980
9 :0x0000ff1d
10 :0x00000014
11 :0x00000005
12 :0x0000016c
13 :0x00001111
14 :0x00001e11
15 :0x000001ee
16 :0x00000000
17 :0x000001fe
18 :0x0000005a
19 :0x0000ff00
20 :0x00000003
21 :0x00001e46
22 :0x00000053
23 :0x00000000
24 :0x00000000
25 :0x00000000
26 :0xffff0000
27 :0x00000000
28 :0x00000000
29 :0x00000000
30 :0x00000000
31 :0x00000000
32 :0x00001ec0
33 :0x0000b11a
34 :0x0000007e
35 :0x0000b3af
36 :0x0000b3aa
37 :0x00008c8d
38 :0x00008b8a
39 :0x00008687
40 :0x00000085
41 :0x00000162
42 :0x0000000e
43 :0x0000015f
44 :0x0000140a
45 :0x00007038
46 :0x00000c13
47 :0x00000609
48 :0x00000305
49 :0x00000203
50 :0x0000fa00
51 :0x00000003
52 :0x00000003
53 :0x0000e78f
54 :0x00000000
55 :0x00000000
56 :0x00000000
57 :0x00000000
58 :0x00000000
59 :0x00000000
60 :0x00000000
61 :0x00000000
62 :0x00000000
63 :0x00000000
64 :0x00000000
65 :0x00000000
66 :0x00000000
67 :0x00000000
68 :0x00000000
69 :0x00000000
70 :0x00000000
71 :0x00000000
72 :0x00000000
73 :0x00000000
74 :0x00000000
75 :0x00000000
76 :0x00000000
77 :0x00000000
78 :0x00000000
79 :0x00000000
80 :0x00000000
81 :0x00000000
82 :0x00000000
83 :0x00000000
84 :0x00000000
85 :0x00000000
86 :0x00000000
87 :0x00000000
88 :0x00000000
89 :0x00000000
90 :0x00000000
91 :0x00000000
92 :0x00000000
93 :0x00000000
94 :0x00000000
95 :0x00000000
96 :0x00001221
97 :0x00000003
98 :0x00000000
99 :0x00000000
100 :0x0000000f
101 :0x00008206
102 :0x0000821e
103 :0x00009160
104 :0x00000000
105 :0x00000e07
106 :0x00005400
107 :0x00000000
108 :0x00000000
109 :0x00000000
110 :0x00000000
111 :0x00000000
112 :0x00000000
113 :0x000001a9
114 :0x00000038
115 :0x00000000
116 :0x00000000
117 :0x00000000
118 :0x00000169
119 :0x00000011
120 :0x00000000
121 :0x00000000
122 :0x00000a01
123 :0x00000000
124 :0x00000000
125 :0x00000000
126 :0x00000000
127 :0x00000000

eeprom
0 :0x2570
1 :0x0104
2 :0x1300
3 :0xe946
4 :0x8a8d
5 :0xffff
6 :0xffff
7 :0xffff
8 :0xffff
9 :0xffff
10 :0xffff
11 :0x2829
12 :0xfff0
13 :0x00ff
14 :0x112c
15 :0x1518
16 :0x1618
17 :0x3e00
18 :0xffff
19 :0xffff
20 :0xffff
21 :0xffff
22 :0xffff
23 :0xffff
24 :0xffff
25 :0xffff
26 :0xffff
27 :0xffff
28 :0xffff
29 :0xffff
30 :0x1717
31 :0x1717
32 :0x1717
33 :0x1717
34 :0x1617
35 :0x1616
36 :0x1616
37 :0xffff
38 :0xffff
39 :0xffff
40 :0xffff
41 :0xffff
42 :0xffff
43 :0xffff
44 :0xffff
45 :0xffff
46 :0xffff
47 :0xffff
48 :0x0032
49 :0x6880
50 :0x3850
51 :0x6f5f
52 :0xff37

bbp
0 :0x13
1 :0x45
2 :0x1e
3 :0x02
4 :0x19
5 :0x09
6 :0x00
7 :0x0e
8 :0x00
9 :0x00
10 :0x00
11 :0x04
12 :0x00
13 :0x70
14 :0x1a
15 :0x30
16 :0xac
17 :0x60
18 :0x18
19 :0xff
20 :0x1e
21 :0x18
22 :0x18
23 :0x08
24 :0x68
25 :0x38
26 :0x08
27 :0x23
28 :0x18
29 :0x18
30 :0x10
31 :0x2b
32 :0xb9
33 :0x55
34 :0x12
35 :0x50
36 :0x11
37 :0x05
38 :0x00
39 :0xc4
40 :0x02
41 :0x60
42 :0x08
43 :0x01
44 :0x78
45 :0x00
46 :0x38
47 :0x0a
48 :0x04
49 :0x02
50 :0x68
51 :0x56
52 :0x2e
53 :0x10
54 :0x18
55 :0x7b
56 :0x08
57 :0x10
58 :0x08
59 :0x02
60 :0x3f
61 :0x6f
62 :0x00
63 :0x00
64 :0x01
65 :0x03
66 :0x00
67 :0x00
68 :0x00
69 :0x00
70 :0x46
71 :0x00
72 :0x00
73 :0x00
74 :0xd4
75 :0xff
76 :0x19
77 :0x05
78 :0x08
79 :0x00
80 :0x00
81 :0x05
82 :0x14
83 :0x50
84 :0xc0
85 :0x10
86 :0x74
87 :0x04
88 :0x00
89 :0x00
90 :0x00
91 :0x00
92 :0x00
93 :0x00
94 :0x00
95 :0x00

rf
0 :0x00000000
1 :0x00022010
2 :0x000008a6
3 :0x00063711
4 :0x00000e07

[-- Attachment #4: differences.txt --]
[-- Type: text/plain, Size: 4009 bytes --]

--- old.output-regdump.txt	2008-06-13 01:41:12.000000000 -0300
+++ new.output-regdump.txt	2008-06-13 01:42:12.000000000 -0300
@@ -1,8 +1,8 @@
-2.6.26-rc5-2
+2.6.25.4-1
 driver: rt2500usb
-version: 2.1.4
-compiled: Jun  8 2008 17:08:54
-dev_flags: 0x00000e2f
+version: 2.0.14
+compiled: Jun 13 2008 01:33:03
+dev_flags: 0x0001012f
 rt chip: 1201
 rf chip: 0005
 revision:00000005
@@ -13,60 +13,60 @@
 rf length: 5
 
 csr
-0 :0x00050000
-1 :0x00040000
-2 :0x13000000
-3 :0xe9460000
-4 :0x8a8d0000
-5 :0x13000000
-6 :0x51460000
-7 :0x65100000
-8 :0x09800000
-9 :0xff1d0000
-10 :0x00140000
-11 :0x000a0000
-12 :0x013a0000
-13 :0x11110000
-14 :0x1e110000
-15 :0x01ee0000
+0 :0x00000005
+1 :0x00000004
+2 :0x00001300
+3 :0x0000e946
+4 :0x00008a8d
+5 :0x00001300
+6 :0x00005146
+7 :0x00006510
+8 :0x00000980
+9 :0x0000ff1d
+10 :0x00000014
+11 :0x00000005
+12 :0x0000016c
+13 :0x00001111
+14 :0x00001e11
+15 :0x000001ee
 16 :0x00000000
-17 :0x01fe0000
-18 :0x005a0000
-19 :0xff000000
-20 :0x00020000
-21 :0x1e460000
-22 :0x00530000
+17 :0x000001fe
+18 :0x0000005a
+19 :0x0000ff00
+20 :0x00000003
+21 :0x00001e46
+22 :0x00000053
 23 :0x00000000
 24 :0x00000000
 25 :0x00000000
-26 :0x00000000
+26 :0xffff0000
 27 :0x00000000
 28 :0x00000000
 29 :0x00000000
 30 :0x00000000
 31 :0x00000000
-32 :0x1ec00000
-33 :0xb1620000
-34 :0x007e0000
-35 :0xb3af0000
-36 :0xb3aa0000
-37 :0x8c8d0000
-38 :0x8b8a0000
-39 :0x86870000
-40 :0x00850000
-41 :0x01620000
-42 :0x000a0000
-43 :0x00000000
-44 :0x140a0000
-45 :0x70380000
-46 :0x0c130000
-47 :0x06090000
-48 :0x03050000
-49 :0x02030000
-50 :0xfa000000
-51 :0x000b0000
-52 :0x00030000
-53 :0xe78f0000
+32 :0x00001ec0
+33 :0x0000b11a
+34 :0x0000007e
+35 :0x0000b3af
+36 :0x0000b3aa
+37 :0x00008c8d
+38 :0x00008b8a
+39 :0x00008687
+40 :0x00000085
+41 :0x00000162
+42 :0x0000000e
+43 :0x0000015f
+44 :0x0000140a
+45 :0x00007038
+46 :0x00000c13
+47 :0x00000609
+48 :0x00000305
+49 :0x00000203
+50 :0x0000fa00
+51 :0x00000003
+52 :0x00000003
+53 :0x0000e78f
 54 :0x00000000
 55 :0x00000000
 56 :0x00000000
@@ -109,38 +109,38 @@
 93 :0x00000000
 94 :0x00000000
 95 :0x00000000
-96 :0x12210000
-97 :0x00030000
+96 :0x00001221
+97 :0x00000003
 98 :0x00000000
 99 :0x00000000
-100 :0x000f0000
-101 :0x82060000
-102 :0x821e0000
-103 :0x91000000
+100 :0x0000000f
+101 :0x00008206
+102 :0x0000821e
+103 :0x00009160
 104 :0x00000000
-105 :0x0e070000
-106 :0x54000000
+105 :0x00000e07
+106 :0x00005400
 107 :0x00000000
 108 :0x00000000
 109 :0x00000000
 110 :0x00000000
 111 :0x00000000
-112 :0x032c0000
-113 :0xfb580000
-114 :0x63110000
-115 :0x0a1f0000
+112 :0x00000000
+113 :0x000001a9
+114 :0x00000038
+115 :0x00000000
 116 :0x00000000
 117 :0x00000000
-118 :0x00000000
-119 :0x00000000
+118 :0x00000169
+119 :0x00000011
 120 :0x00000000
 121 :0x00000000
-122 :0x02e10000
+122 :0x00000a01
 123 :0x00000000
 124 :0x00000000
 125 :0x00000000
 126 :0x00000000
-127 :0x00000422
+127 :0x00000000
 
 eeprom
 0 :0x2570
@@ -195,35 +195,35 @@
 49 :0x6880
 50 :0x3850
 51 :0x6f5f
-52 :0xfa00
+52 :0xff37
 
 bbp
 0 :0x13
-1 :0x55
-2 :0x06
+1 :0x45
+2 :0x1e
 3 :0x02
 4 :0x19
-5 :0x0b
-6 :0x10
-7 :0x00
+5 :0x09
+6 :0x00
+7 :0x0e
 8 :0x00
 9 :0x00
 10 :0x00
 11 :0x04
-12 :0x01
-13 :0xa8
+12 :0x00
+13 :0x70
 14 :0x1a
 15 :0x30
 16 :0xac
-17 :0x00
+17 :0x60
 18 :0x18
 19 :0xff
 20 :0x1e
 21 :0x18
 22 :0x18
 23 :0x08
-24 :0x80
-25 :0x50
+24 :0x68
+25 :0x38
 26 :0x08
 27 :0x23
 28 :0x18
@@ -240,26 +240,26 @@
 39 :0xc4
 40 :0x02
 41 :0x60
-42 :0x09
-43 :0x34
-44 :0x0b
-45 :0x6e
-46 :0x70
+42 :0x08
+43 :0x01
+44 :0x78
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+46 :0x38
 47 :0x0a
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 49 :0x02
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-51 :0x18
-52 :0x04
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-55 :0x2d
+55 :0x7b
 56 :0x08
 57 :0x10
 58 :0x08
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-60 :0x3e
-61 :0x5f
+60 :0x3f
+61 :0x6f
 62 :0x00
 63 :0x00
 64 :0x01
@@ -284,8 +284,8 @@
 83 :0x50
 84 :0xc0
 85 :0x10
-86 :0xcf
-87 :0x00
+86 :0x74
+87 :0x04
 88 :0x00
 89 :0x00
 90 :0x00
@@ -299,5 +299,5 @@
 0 :0x00000000
 1 :0x00022010
 2 :0x000008a6
-3 :0x00062d11
+3 :0x00063711
 4 :0x00000e07

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc (fwd)

[Rogério Brito]

[-- Attachment #1: Type: text/plain, Size: 954 bytes --]

Dear Ivo and John (among others),

Did you receive my earlier message (attached here for reference)? I'm
willing to experiment with the driver a little bit and I hope that the
information that I have provided so far is helpful to chase the reason
why the driver doesn't work on PowerPC.

BTW, the latest kernel that I tried on a x86-64 machine was a 2.6.26-rc6
and it showed the same results as with kernel 2.6.26-rc5: I couldn't
associate with the AP.

OTOH, reverting back to 2.6.25 on this (x86-64) machine, I can use the
D-Link USB stick without any problems.

If you need more information, I will be glad to assist you to have
everything fixed.

I am willing to use any git tree, if that helps.


Thanks in advance, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

[-- Attachment #2: Type: message/rfc822, Size: 13859 bytes --]

[-- Attachment #2.1.1: Type: text/plain, Size: 1210 bytes --]

Hi again, Ivo and John.

I have finally made the rt2x00 work on the x86-64 with the kernel
2.6.25.

Just as a reminder:

* with kernel 2.6.26-rc4, I could associate with the AP, but could not
  get a DHCP lease;
* with kernel 2.6.26-rc5, I could not even associate with the AP.

So, it seems that we have some regressions here. :-(

> Well, I'm attaching the diff between the regdump from the earlier try
> on the iBook and the regdump from this x86-64. I think that some
> conclusions may be drawn from it, since it seems to be your domain of
> expertise.

I'm attaching here 3 files: the old output from regdump (taken from the
ibook), the new, working (with kernel 2.6.25.4) regdump and their diff.
Notice that there are some inverted values there, but they are shorts
(i.e., 16-bit integers) that are inverted, instead of the inverted
values being bytes.

I think that this may mean that your work may be easier on debugging the
driver (I hope so!).


Thanks for any help, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

[-- Attachment #2.1.2: old.output-regdump.txt --]
[-- Type: text/plain, Size: 3665 bytes --]

2.6.26-rc5-2
driver: rt2500usb
version: 2.1.4
compiled: Jun  8 2008 17:08:54
dev_flags: 0x00000e2f
rt chip: 1201
rf chip: 0005
revision:00000005

csr length: 128
eeprom length: 53
bbp length: 96
rf length: 5

csr
0 :0x00050000
1 :0x00040000
2 :0x13000000
3 :0xe9460000
4 :0x8a8d0000
5 :0x13000000
6 :0x51460000
7 :0x65100000
8 :0x09800000
9 :0xff1d0000
10 :0x00140000
11 :0x000a0000
12 :0x013a0000
13 :0x11110000
14 :0x1e110000
15 :0x01ee0000
16 :0x00000000
17 :0x01fe0000
18 :0x005a0000
19 :0xff000000
20 :0x00020000
21 :0x1e460000
22 :0x00530000
23 :0x00000000
24 :0x00000000
25 :0x00000000
26 :0x00000000
27 :0x00000000
28 :0x00000000
29 :0x00000000
30 :0x00000000
31 :0x00000000
32 :0x1ec00000
33 :0xb1620000
34 :0x007e0000
35 :0xb3af0000
36 :0xb3aa0000
37 :0x8c8d0000
38 :0x8b8a0000
39 :0x86870000
40 :0x00850000
41 :0x01620000
42 :0x000a0000
43 :0x00000000
44 :0x140a0000
45 :0x70380000
46 :0x0c130000
47 :0x06090000
48 :0x03050000
49 :0x02030000
50 :0xfa000000
51 :0x000b0000
52 :0x00030000
53 :0xe78f0000
54 :0x00000000
55 :0x00000000
56 :0x00000000
57 :0x00000000
58 :0x00000000
59 :0x00000000
60 :0x00000000
61 :0x00000000
62 :0x00000000
63 :0x00000000
64 :0x00000000
65 :0x00000000
66 :0x00000000
67 :0x00000000
68 :0x00000000
69 :0x00000000
70 :0x00000000
71 :0x00000000
72 :0x00000000
73 :0x00000000
74 :0x00000000
75 :0x00000000
76 :0x00000000
77 :0x00000000
78 :0x00000000
79 :0x00000000
80 :0x00000000
81 :0x00000000
82 :0x00000000
83 :0x00000000
84 :0x00000000
85 :0x00000000
86 :0x00000000
87 :0x00000000
88 :0x00000000
89 :0x00000000
90 :0x00000000
91 :0x00000000
92 :0x00000000
93 :0x00000000
94 :0x00000000
95 :0x00000000
96 :0x12210000
97 :0x00030000
98 :0x00000000
99 :0x00000000
100 :0x000f0000
101 :0x82060000
102 :0x821e0000
103 :0x91000000
104 :0x00000000
105 :0x0e070000
106 :0x54000000
107 :0x00000000
108 :0x00000000
109 :0x00000000
110 :0x00000000
111 :0x00000000
112 :0x032c0000
113 :0xfb580000
114 :0x63110000
115 :0x0a1f0000
116 :0x00000000
117 :0x00000000
118 :0x00000000
119 :0x00000000
120 :0x00000000
121 :0x00000000
122 :0x02e10000
123 :0x00000000
124 :0x00000000
125 :0x00000000
126 :0x00000000
127 :0x00000422

eeprom
0 :0x2570
1 :0x0104
2 :0x1300
3 :0xe946
4 :0x8a8d
5 :0xffff
6 :0xffff
7 :0xffff
8 :0xffff
9 :0xffff
10 :0xffff
11 :0x2829
12 :0xfff0
13 :0x00ff
14 :0x112c
15 :0x1518
16 :0x1618
17 :0x3e00
18 :0xffff
19 :0xffff
20 :0xffff
21 :0xffff
22 :0xffff
23 :0xffff
24 :0xffff
25 :0xffff
26 :0xffff
27 :0xffff
28 :0xffff
29 :0xffff
30 :0x1717
31 :0x1717
32 :0x1717
33 :0x1717
34 :0x1617
35 :0x1616
36 :0x1616
37 :0xffff
38 :0xffff
39 :0xffff
40 :0xffff
41 :0xffff
42 :0xffff
43 :0xffff
44 :0xffff
45 :0xffff
46 :0xffff
47 :0xffff
48 :0x0032
49 :0x6880
50 :0x3850
51 :0x6f5f
52 :0xfa00

bbp
0 :0x13
1 :0x55
2 :0x06
3 :0x02
4 :0x19
5 :0x0b
6 :0x10
7 :0x00
8 :0x00
9 :0x00
10 :0x00
11 :0x04
12 :0x01
13 :0xa8
14 :0x1a
15 :0x30
16 :0xac
17 :0x00
18 :0x18
19 :0xff
20 :0x1e
21 :0x18
22 :0x18
23 :0x08
24 :0x80
25 :0x50
26 :0x08
27 :0x23
28 :0x18
29 :0x18
30 :0x10
31 :0x2b
32 :0xb9
33 :0x55
34 :0x12
35 :0x50
36 :0x11
37 :0x05
38 :0x00
39 :0xc4
40 :0x02
41 :0x60
42 :0x09
43 :0x34
44 :0x0b
45 :0x6e
46 :0x70
47 :0x0a
48 :0x04
49 :0x02
50 :0x68
51 :0x18
52 :0x04
53 :0x10
54 :0x18
55 :0x2d
56 :0x08
57 :0x10
58 :0x08
59 :0x02
60 :0x3e
61 :0x5f
62 :0x00
63 :0x00
64 :0x01
65 :0x03
66 :0x00
67 :0x00
68 :0x00
69 :0x00
70 :0x46
71 :0x00
72 :0x00
73 :0x00
74 :0xd4
75 :0xff
76 :0x19
77 :0x05
78 :0x08
79 :0x00
80 :0x00
81 :0x05
82 :0x14
83 :0x50
84 :0xc0
85 :0x10
86 :0xcf
87 :0x00
88 :0x00
89 :0x00
90 :0x00
91 :0x00
92 :0x00
93 :0x00
94 :0x00
95 :0x00

rf
0 :0x00000000
1 :0x00022010
2 :0x000008a6
3 :0x00062d11
4 :0x00000e07

[-- Attachment #2.1.3: new.output-regdump.txt --]
[-- Type: text/plain, Size: 3664 bytes --]

2.6.25.4-1
driver: rt2500usb
version: 2.0.14
compiled: Jun 13 2008 01:33:03
dev_flags: 0x0001012f
rt chip: 1201
rf chip: 0005
revision:00000005

csr length: 128
eeprom length: 53
bbp length: 96
rf length: 5

csr
0 :0x00000005
1 :0x00000004
2 :0x00001300
3 :0x0000e946
4 :0x00008a8d
5 :0x00001300
6 :0x00005146
7 :0x00006510
8 :0x00000980
9 :0x0000ff1d
10 :0x00000014
11 :0x00000005
12 :0x0000016c
13 :0x00001111
14 :0x00001e11
15 :0x000001ee
16 :0x00000000
17 :0x000001fe
18 :0x0000005a
19 :0x0000ff00
20 :0x00000003
21 :0x00001e46
22 :0x00000053
23 :0x00000000
24 :0x00000000
25 :0x00000000
26 :0xffff0000
27 :0x00000000
28 :0x00000000
29 :0x00000000
30 :0x00000000
31 :0x00000000
32 :0x00001ec0
33 :0x0000b11a
34 :0x0000007e
35 :0x0000b3af
36 :0x0000b3aa
37 :0x00008c8d
38 :0x00008b8a
39 :0x00008687
40 :0x00000085
41 :0x00000162
42 :0x0000000e
43 :0x0000015f
44 :0x0000140a
45 :0x00007038
46 :0x00000c13
47 :0x00000609
48 :0x00000305
49 :0x00000203
50 :0x0000fa00
51 :0x00000003
52 :0x00000003
53 :0x0000e78f
54 :0x00000000
55 :0x00000000
56 :0x00000000
57 :0x00000000
58 :0x00000000
59 :0x00000000
60 :0x00000000
61 :0x00000000
62 :0x00000000
63 :0x00000000
64 :0x00000000
65 :0x00000000
66 :0x00000000
67 :0x00000000
68 :0x00000000
69 :0x00000000
70 :0x00000000
71 :0x00000000
72 :0x00000000
73 :0x00000000
74 :0x00000000
75 :0x00000000
76 :0x00000000
77 :0x00000000
78 :0x00000000
79 :0x00000000
80 :0x00000000
81 :0x00000000
82 :0x00000000
83 :0x00000000
84 :0x00000000
85 :0x00000000
86 :0x00000000
87 :0x00000000
88 :0x00000000
89 :0x00000000
90 :0x00000000
91 :0x00000000
92 :0x00000000
93 :0x00000000
94 :0x00000000
95 :0x00000000
96 :0x00001221
97 :0x00000003
98 :0x00000000
99 :0x00000000
100 :0x0000000f
101 :0x00008206
102 :0x0000821e
103 :0x00009160
104 :0x00000000
105 :0x00000e07
106 :0x00005400
107 :0x00000000
108 :0x00000000
109 :0x00000000
110 :0x00000000
111 :0x00000000
112 :0x00000000
113 :0x000001a9
114 :0x00000038
115 :0x00000000
116 :0x00000000
117 :0x00000000
118 :0x00000169
119 :0x00000011
120 :0x00000000
121 :0x00000000
122 :0x00000a01
123 :0x00000000
124 :0x00000000
125 :0x00000000
126 :0x00000000
127 :0x00000000

eeprom
0 :0x2570
1 :0x0104
2 :0x1300
3 :0xe946
4 :0x8a8d
5 :0xffff
6 :0xffff
7 :0xffff
8 :0xffff
9 :0xffff
10 :0xffff
11 :0x2829
12 :0xfff0
13 :0x00ff
14 :0x112c
15 :0x1518
16 :0x1618
17 :0x3e00
18 :0xffff
19 :0xffff
20 :0xffff
21 :0xffff
22 :0xffff
23 :0xffff
24 :0xffff
25 :0xffff
26 :0xffff
27 :0xffff
28 :0xffff
29 :0xffff
30 :0x1717
31 :0x1717
32 :0x1717
33 :0x1717
34 :0x1617
35 :0x1616
36 :0x1616
37 :0xffff
38 :0xffff
39 :0xffff
40 :0xffff
41 :0xffff
42 :0xffff
43 :0xffff
44 :0xffff
45 :0xffff
46 :0xffff
47 :0xffff
48 :0x0032
49 :0x6880
50 :0x3850
51 :0x6f5f
52 :0xff37

bbp
0 :0x13
1 :0x45
2 :0x1e
3 :0x02
4 :0x19
5 :0x09
6 :0x00
7 :0x0e
8 :0x00
9 :0x00
10 :0x00
11 :0x04
12 :0x00
13 :0x70
14 :0x1a
15 :0x30
16 :0xac
17 :0x60
18 :0x18
19 :0xff
20 :0x1e
21 :0x18
22 :0x18
23 :0x08
24 :0x68
25 :0x38
26 :0x08
27 :0x23
28 :0x18
29 :0x18
30 :0x10
31 :0x2b
32 :0xb9
33 :0x55
34 :0x12
35 :0x50
36 :0x11
37 :0x05
38 :0x00
39 :0xc4
40 :0x02
41 :0x60
42 :0x08
43 :0x01
44 :0x78
45 :0x00
46 :0x38
47 :0x0a
48 :0x04
49 :0x02
50 :0x68
51 :0x56
52 :0x2e
53 :0x10
54 :0x18
55 :0x7b
56 :0x08
57 :0x10
58 :0x08
59 :0x02
60 :0x3f
61 :0x6f
62 :0x00
63 :0x00
64 :0x01
65 :0x03
66 :0x00
67 :0x00
68 :0x00
69 :0x00
70 :0x46
71 :0x00
72 :0x00
73 :0x00
74 :0xd4
75 :0xff
76 :0x19
77 :0x05
78 :0x08
79 :0x00
80 :0x00
81 :0x05
82 :0x14
83 :0x50
84 :0xc0
85 :0x10
86 :0x74
87 :0x04
88 :0x00
89 :0x00
90 :0x00
91 :0x00
92 :0x00
93 :0x00
94 :0x00
95 :0x00

rf
0 :0x00000000
1 :0x00022010
2 :0x000008a6
3 :0x00063711
4 :0x00000e07

[-- Attachment #2.1.4: differences.txt --]
[-- Type: text/plain, Size: 4009 bytes --]

--- old.output-regdump.txt	2008-06-13 01:41:12.000000000 -0300
+++ new.output-regdump.txt	2008-06-13 01:42:12.000000000 -0300
@@ -1,8 +1,8 @@
-2.6.26-rc5-2
+2.6.25.4-1
 driver: rt2500usb
-version: 2.1.4
-compiled: Jun  8 2008 17:08:54
-dev_flags: 0x00000e2f
+version: 2.0.14
+compiled: Jun 13 2008 01:33:03
+dev_flags: 0x0001012f
 rt chip: 1201
 rf chip: 0005
 revision:00000005
@@ -13,60 +13,60 @@
 rf length: 5
 
 csr
-0 :0x00050000
-1 :0x00040000
-2 :0x13000000
-3 :0xe9460000
-4 :0x8a8d0000
-5 :0x13000000
-6 :0x51460000
-7 :0x65100000
-8 :0x09800000
-9 :0xff1d0000
-10 :0x00140000
-11 :0x000a0000
-12 :0x013a0000
-13 :0x11110000
-14 :0x1e110000
-15 :0x01ee0000
+0 :0x00000005
+1 :0x00000004
+2 :0x00001300
+3 :0x0000e946
+4 :0x00008a8d
+5 :0x00001300
+6 :0x00005146
+7 :0x00006510
+8 :0x00000980
+9 :0x0000ff1d
+10 :0x00000014
+11 :0x00000005
+12 :0x0000016c
+13 :0x00001111
+14 :0x00001e11
+15 :0x000001ee
 16 :0x00000000
-17 :0x01fe0000
-18 :0x005a0000
-19 :0xff000000
-20 :0x00020000
-21 :0x1e460000
-22 :0x00530000
+17 :0x000001fe
+18 :0x0000005a
+19 :0x0000ff00
+20 :0x00000003
+21 :0x00001e46
+22 :0x00000053
 23 :0x00000000
 24 :0x00000000
 25 :0x00000000
-26 :0x00000000
+26 :0xffff0000
 27 :0x00000000
 28 :0x00000000
 29 :0x00000000
 30 :0x00000000
 31 :0x00000000
-32 :0x1ec00000
-33 :0xb1620000
-34 :0x007e0000
-35 :0xb3af0000
-36 :0xb3aa0000
-37 :0x8c8d0000
-38 :0x8b8a0000
-39 :0x86870000
-40 :0x00850000
-41 :0x01620000
-42 :0x000a0000
-43 :0x00000000
-44 :0x140a0000
-45 :0x70380000
-46 :0x0c130000
-47 :0x06090000
-48 :0x03050000
-49 :0x02030000
-50 :0xfa000000
-51 :0x000b0000
-52 :0x00030000
-53 :0xe78f0000
+32 :0x00001ec0
+33 :0x0000b11a
+34 :0x0000007e
+35 :0x0000b3af
+36 :0x0000b3aa
+37 :0x00008c8d
+38 :0x00008b8a
+39 :0x00008687
+40 :0x00000085
+41 :0x00000162
+42 :0x0000000e
+43 :0x0000015f
+44 :0x0000140a
+45 :0x00007038
+46 :0x00000c13
+47 :0x00000609
+48 :0x00000305
+49 :0x00000203
+50 :0x0000fa00
+51 :0x00000003
+52 :0x00000003
+53 :0x0000e78f
 54 :0x00000000
 55 :0x00000000
 56 :0x00000000
@@ -109,38 +109,38 @@
 93 :0x00000000
 94 :0x00000000
 95 :0x00000000
-96 :0x12210000
-97 :0x00030000
+96 :0x00001221
+97 :0x00000003
 98 :0x00000000
 99 :0x00000000
-100 :0x000f0000
-101 :0x82060000
-102 :0x821e0000
-103 :0x91000000
+100 :0x0000000f
+101 :0x00008206
+102 :0x0000821e
+103 :0x00009160
 104 :0x00000000
-105 :0x0e070000
-106 :0x54000000
+105 :0x00000e07
+106 :0x00005400
 107 :0x00000000
 108 :0x00000000
 109 :0x00000000
 110 :0x00000000
 111 :0x00000000
-112 :0x032c0000
-113 :0xfb580000
-114 :0x63110000
-115 :0x0a1f0000
+112 :0x00000000
+113 :0x000001a9
+114 :0x00000038
+115 :0x00000000
 116 :0x00000000
 117 :0x00000000
-118 :0x00000000
-119 :0x00000000
+118 :0x00000169
+119 :0x00000011
 120 :0x00000000
 121 :0x00000000
-122 :0x02e10000
+122 :0x00000a01
 123 :0x00000000
 124 :0x00000000
 125 :0x00000000
 126 :0x00000000
-127 :0x00000422
+127 :0x00000000
 
 eeprom
 0 :0x2570
@@ -195,35 +195,35 @@
 49 :0x6880
 50 :0x3850
 51 :0x6f5f
-52 :0xfa00
+52 :0xff37
 
 bbp
 0 :0x13
-1 :0x55
-2 :0x06
+1 :0x45
+2 :0x1e
 3 :0x02
 4 :0x19
-5 :0x0b
-6 :0x10
-7 :0x00
+5 :0x09
+6 :0x00
+7 :0x0e
 8 :0x00
 9 :0x00
 10 :0x00
 11 :0x04
-12 :0x01
-13 :0xa8
+12 :0x00
+13 :0x70
 14 :0x1a
 15 :0x30
 16 :0xac
-17 :0x00
+17 :0x60
 18 :0x18
 19 :0xff
 20 :0x1e
 21 :0x18
 22 :0x18
 23 :0x08
-24 :0x80
-25 :0x50
+24 :0x68
+25 :0x38
 26 :0x08
 27 :0x23
 28 :0x18
@@ -240,26 +240,26 @@
 39 :0xc4
 40 :0x02
 41 :0x60
-42 :0x09
-43 :0x34
-44 :0x0b
-45 :0x6e
-46 :0x70
+42 :0x08
+43 :0x01
+44 :0x78
+45 :0x00
+46 :0x38
 47 :0x0a
 48 :0x04
 49 :0x02
 50 :0x68
-51 :0x18
-52 :0x04
+51 :0x56
+52 :0x2e
 53 :0x10
 54 :0x18
-55 :0x2d
+55 :0x7b
 56 :0x08
 57 :0x10
 58 :0x08
 59 :0x02
-60 :0x3e
-61 :0x5f
+60 :0x3f
+61 :0x6f
 62 :0x00
 63 :0x00
 64 :0x01
@@ -284,8 +284,8 @@
 83 :0x50
 84 :0xc0
 85 :0x10
-86 :0xcf
-87 :0x00
+86 :0x74
+87 :0x04
 88 :0x00
 89 :0x00
 90 :0x00
@@ -299,5 +299,5 @@
 0 :0x00000000
 1 :0x00022010
 2 :0x000008a6
-3 :0x00062d11
+3 :0x00063711
 4 :0x00000e07

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc (fwd)

[Ivo van Doorn]

Hi,

> Did you receive my earlier message (attached here for reference)? I'm
> willing to experiment with the driver a little bit and I hope that the
> information that I have provided so far is helpful to chase the reason
> why the driver doesn't work on PowerPC.

Sorry I have been quite busy with other things.
I have glanced over the register dumps, and there are no obvious endian problems.

The reason most registers are different with the 16bits swapped is the way
rt2x00 sends the register information through debugfs. rt2500usb only has 16bit
registers and the way the information is dumped through debugfs assumes 32bit
registers.

I will go over the real register differences as soon as possible, but as I said,
I am momentarily quite busy with other things. :(

Ivo

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc (fwd)

[Rogério Brito]

Hi, Ivo. Thank you for your reply.

On Jun 20 2008, Ivo van Doorn wrote:
> Hi,
> 
> > Did you receive my earlier message (attached here for reference)? I'm
> > willing to experiment with the driver a little bit and I hope that the
> > information that I have provided so far is helpful to chase the reason
> > why the driver doesn't work on PowerPC.
> 
> Sorry I have been quite busy with other things.

I'm terribly sorry for that, since I would like the driver to work with
the USB stick still in the 2.6.26 release (since that's what some
distributions will probably use).

> I have glanced over the register dumps, and there are no obvious
> endian problems.

OK.

> The reason most registers are different with the 16bits swapped is the way
> rt2x00 sends the register information through debugfs. rt2500usb only has 16bit
> registers and the way the information is dumped through debugfs assumes 32bit
> registers.

I didn't know that and was surprised. I thought that it would have been
something easier to fix, then.

> I will go over the real register differences as soon as possible, but
> as I said, I am momentarily quite busy with other things. :(

Thanks anyway. I am willing to help as much as I can.


Thanks, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc (fwd)

[Rogério Brito]

Hi, Ivo and John (again).

On Jun 20 2008, Rogério Brito wrote:
> On Jun 20 2008, Ivo van Doorn wrote:
> > 
> > > Did you receive my earlier message (attached here for reference)? I'm
> > > willing to experiment with the driver a little bit and I hope that the
> > > information that I have provided so far is helpful to chase the reason
> > > why the driver doesn't work on PowerPC.
> > 
> > Sorry I have been quite busy with other things.
> 
> I'm terribly sorry for that, since I would like the driver to work with
> the USB stick still in the 2.6.26 release (since that's what some
> distributions will probably use).

Just for your information, I just compiled the -rc7 kernel on x86-64 (where
rt2500usb works if I boot with kernel 2.6.25) and still doesn't work (I'm
not even mentioning here PowerPC).

The "doesn't work" part means that the usual procedure of bringing the
interface up, setting the key (I'm using WEP), setting the essid (at which
point it should already be associated with the AP) and then using a dchp
client on the interface doesn't get a DHCP lease.

The DHCP client just sits there trying to send a broadcast message and
there is no response. After the key is set and after the essid is set, I
see that it is not associated with the AP, even though I get messages on
dmesg that it has associated and then the association was lost (I don't
have the dmesg log here on this computer).

Interestingly, I can see the AP if I do an "iwlist wlan0 scan" command.

I would really like to help with this problem (and have it fixed) before
the actual release of 2.6.26. Since I saw that you had some activity in
your git tree.

To John: would you like me to test any other tree with my hardware, like
the wireless-next tree? Would it make any difference?


Regards, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc (fwd)

[Ivo van Doorn]

[-- Attachment #1: Type: text/plain, Size: 1537 bytes --]

Hi,

[Added rt2400-devel to CC list]

> > > > Did you receive my earlier message (attached here for reference)? I'm
> > > > willing to experiment with the driver a little bit and I hope that the
> > > > information that I have provided so far is helpful to chase the reason
> > > > why the driver doesn't work on PowerPC.
> > > 
> > > Sorry I have been quite busy with other things.
> > 
> > I'm terribly sorry for that, since I would like the driver to work with
> > the USB stick still in the 2.6.26 release (since that's what some
> > distributions will probably use).
> 
> Just for your information, I just compiled the -rc7 kernel on x86-64 (where
> rt2500usb works if I boot with kernel 2.6.25) and still doesn't work (I'm
> not even mentioning here PowerPC).

In case other people are interested in the register differences as well,
attached is the real difference between the registers. Registers that are
different have the register name and meaning on the right side.

Interesting things to note:
 - SIFS/EIFS timing is different, which is expected since rt2500usb now
    listens to mac80211 for this information.
 - Activity led is disabled, not interesting for this bug, but it really should have
   been set to 1.
 - mac80211 now uses short preamble
 - Basic rates mask is 0, this is very odd....
 - Link tuner value is set to 0, I seriously doubt that is a correct value
 - TX power is different, mac80211 probably has set it to something different

Thats it for now, if anybody has any ideas, please let me know. :)

Ivo

[-- Attachment #2: diff.rt2500usb.txt --]
[-- Type: text/plain, Size: 22635 bytes --]

2.6.25.4-1                                                    | 2.6.26-rc5-2
driver: rt2500usb                                               driver: rt2500usb
version: 2.0.14                                               | version: 2.1.4
compiled: Jun 13 2008 01:33:03                                | compiled: Jun  8 2008 17:08:54
dev_flags: 0x0001012f                                         | dev_flags: 0x00000e2f
rt chip: 1201                                                   rt chip: 1201
rf chip: 0005                                                   rf chip: 0005
revision:00000005                                               revision:00000005

csr length: 128                                                 csr length: 128
eeprom length: 53                                               eeprom length: 53
bbp length: 96                                                  bbp length: 96
rf length: 5                                                    rf length: 5

csr                                                             csr
0 :0x0005                                                       0 :0x0005
1 :0x0004                                                       1 :0x0004
2 :0x1300                                                       2 :0x1300
3 :0xe946                                                       3 :0xe946
4 :0x8a8d                                                       4 :0x8a8d
5 :0x1300                                                       5 :0x1300
6 :0x5146                                                       6 :0x5146
7 :0x6510                                                       7 :0x6510
8 :0x0980                                                       8 :0x0980
9 :0xff1d                                                       9 :0xff1d
10 :0x0014                                                      10 :0x0014
11 :0x0005                                                    | 11 :0x000a	MAC_CSR11: SIFS.
12 :0x016c                                                    | 12 :0x013a	MAC_CSR12: EIFS.
13 :0x1111                                                      13 :0x1111
14 :0x1e11                                                      14 :0x1e11
15 :0x01ee                                                      15 :0x01ee
16 :0x0000                                                      16 :0x0000
17 :0x01fe                                                      17 :0x01fe
18 :0x005a                                                      18 :0x005a
19 :0xff00                                                      19 :0xff00
20 :0x0003                                                    | 20 :0x0002	MAC_CSR20: LED control register.
21 :0x1e46                                                      21 :0x1e46
22 :0x0053                                                      22 :0x0053
23 :0x0000                                                      23 :0x0000
24 :0x0000                                                      24 :0x0000
25 :0x0000                                                      25 :0x0000
26 :0x0000                                                      26 :0x0000
27 :0x0000                                                      27 :0x0000
28 :0x0000                                                      28 :0x0000
29 :0x0000                                                      29 :0x0000
30 :0x0000                                                      30 :0x0000
31 :0x0000                                                      31 :0x0000
32 :0x1ec0                                                      32 :0x1ec0
33 :0xb11a                                                    | 33 :0xb162	TXRX_CSR1: TX configuration.
34 :0x007e                                                      34 :0x007e
35 :0xb3af                                                      35 :0xb3af
36 :0xb3aa                                                      36 :0xb3aa
37 :0x8c8d                                                      37 :0x8c8d
38 :0x8b8a                                                      38 :0x8b8a
39 :0x8687                                                      39 :0x8687
40 :0x0085                                                      40 :0x0085
41 :0x0162                                                      41 :0x0162
42 :0x000e                                                    | 42 :0x000a	TXRX_CSR10: Auto responder control.
43 :0x015f                                                    | 43 :0x0000	TXRX_CSR11: Auto responder basic rate.
44 :0x140a                                                      44 :0x140a
45 :0x7038                                                      45 :0x7038
46 :0x0c13                                                      46 :0x0c13
47 :0x0609                                                      47 :0x0609
48 :0x0305                                                      48 :0x0305
49 :0x0203                                                      49 :0x0203
50 :0xfa00                                                      50 :0xfa00
51 :0x0003                                                    | 51 :0x000b	TXRX_CSR19: Synchronization control register.
52 :0x0003                                                      52 :0x0003
53 :0xe78f                                                      53 :0xe78f
54 :0x0000                                                      54 :0x0000
55 :0x0000                                                      55 :0x0000
56 :0x0000                                                      56 :0x0000
57 :0x0000                                                      57 :0x0000
58 :0x0000                                                      58 :0x0000
59 :0x0000                                                      59 :0x0000
60 :0x0000                                                      60 :0x0000
61 :0x0000                                                      61 :0x0000
62 :0x0000                                                      62 :0x0000
63 :0x0000                                                      63 :0x0000
64 :0x0000                                                      64 :0x0000
65 :0x0000                                                      65 :0x0000
66 :0x0000                                                      66 :0x0000
67 :0x0000                                                      67 :0x0000
68 :0x0000                                                      68 :0x0000
69 :0x0000                                                      69 :0x0000
70 :0x0000                                                      70 :0x0000
71 :0x0000                                                      71 :0x0000
72 :0x0000                                                      72 :0x0000
73 :0x0000                                                      73 :0x0000
74 :0x0000                                                      74 :0x0000
75 :0x0000                                                      75 :0x0000
76 :0x0000                                                      76 :0x0000
77 :0x0000                                                      77 :0x0000
78 :0x0000                                                      78 :0x0000
79 :0x0000                                                      79 :0x0000
80 :0x0000                                                      80 :0x0000
81 :0x0000                                                      81 :0x0000
82 :0x0000                                                      82 :0x0000
83 :0x0000                                                      83 :0x0000
84 :0x0000                                                      84 :0x0000
85 :0x0000                                                      85 :0x0000
86 :0x0000                                                      86 :0x0000
87 :0x0000                                                      87 :0x0000
88 :0x0000                                                      88 :0x0000
89 :0x0000                                                      89 :0x0000
90 :0x0000                                                      90 :0x0000
91 :0x0000                                                      91 :0x0000
92 :0x0000                                                      92 :0x0000
93 :0x0000                                                      93 :0x0000
94 :0x0000                                                      94 :0x0000
95 :0x0000                                                      95 :0x0000
96 :0x1221                                                      96 :0x1221
97 :0x0003                                                      97 :0x0003
98 :0x0000                                                      98 :0x0000
99 :0x0000                                                      99 :0x0000
100 :0x000f                                                     100 :0x000f
101 :0x8206                                                     101 :0x8206
102 :0x821e                                                     102 :0x821e
103 :0x9160                                                   | 103 :0x9100	PHY_CSR7: BBP access register 0.
104 :0x0000                                                     104 :0x0000
105 :0x0e07                                                     105 :0x0e07
106 :0x5400                                                     106 :0x5400
107 :0x0000                                                     107 :0x0000
108 :0x0000                                                     108 :0x0000
109 :0x0000                                                     109 :0x0000
110 :0x0000                                                     110 :0x0000
111 :0x0000                                                     111 :0x0000
112 :0x0000                                                   | 112 :0x032c	STA_CSR0: FCS error count.
113 :0x01a9                                                   | 113 :0xfb58	STA_CSR1: PLCP error count.
114 :0x0038                                                   | 114 :0x6311	STA_CSR2: LONG error count.
115 :0x0000                                                   | 115 :0x0a1f	STA_CSR3: CCA false alarm.
116 :0x0000                                                     116 :0x0000
117 :0x0000                                                     117 :0x0000
118 :0x0169                                                   | 118 :0x0000	STA_CSR6
119 :0x0011                                                   | 119 :0x0000	STA_CSR7
120 :0x0000                                                     120 :0x0000
121 :0x0000                                                     121 :0x0000
122 :0x0a01                                                   | 122 :0x02e1	STA_CSR10
123 :0x0000                                                     123 :0x0000
124 :0x0000                                                     124 :0x0000
125 :0x0000                                                     125 :0x0000
126 :0x0000                                                     126 :0x0000
127 :0x0000                                                     127 :0x0000

eeprom                                                          eeprom
0 :0x2570                                                       0 :0x2570
1 :0x0104                                                       1 :0x0104
2 :0x1300                                                       2 :0x1300
3 :0xe946                                                       3 :0xe946
4 :0x8a8d                                                       4 :0x8a8d
5 :0xffff                                                       5 :0xffff
6 :0xffff                                                       6 :0xffff
7 :0xffff                                                       7 :0xffff
8 :0xffff                                                       8 :0xffff
9 :0xffff                                                       9 :0xffff
10 :0xffff                                                      10 :0xffff
11 :0x2829                                                      11 :0x2829
12 :0xfff0                                                      12 :0xfff0
13 :0x00ff                                                      13 :0x00ff
14 :0x112c                                                      14 :0x112c
15 :0x1518                                                      15 :0x1518
16 :0x1618                                                      16 :0x1618
17 :0x3e00                                                      17 :0x3e00
18 :0xffff                                                      18 :0xffff
19 :0xffff                                                      19 :0xffff
20 :0xffff                                                      20 :0xffff
21 :0xffff                                                      21 :0xffff
22 :0xffff                                                      22 :0xffff
23 :0xffff                                                      23 :0xffff
24 :0xffff                                                      24 :0xffff
25 :0xffff                                                      25 :0xffff
26 :0xffff                                                      26 :0xffff
27 :0xffff                                                      27 :0xffff
28 :0xffff                                                      28 :0xffff
29 :0xffff                                                      29 :0xffff
30 :0x1717                                                      30 :0x1717
31 :0x1717                                                      31 :0x1717
32 :0x1717                                                      32 :0x1717
33 :0x1717                                                      33 :0x1717
34 :0x1617                                                      34 :0x1617
35 :0x1616                                                      35 :0x1616
36 :0x1616                                                      36 :0x1616
37 :0xffff                                                      37 :0xffff
38 :0xffff                                                      38 :0xffff
39 :0xffff                                                      39 :0xffff
40 :0xffff                                                      40 :0xffff
41 :0xffff                                                      41 :0xffff
42 :0xffff                                                      42 :0xffff
43 :0xffff                                                      43 :0xffff
44 :0xffff                                                      44 :0xffff
45 :0xffff                                                      45 :0xffff
46 :0xffff                                                      46 :0xffff
47 :0xffff                                                      47 :0xffff
48 :0x0032                                                      48 :0x0032
49 :0x6880                                                      49 :0x6880
50 :0x3850                                                      50 :0x3850
51 :0x6f5f                                                      51 :0x6f5f
52 :0xff37                                                    | 52 :0xfa00

bbp                                                             bbp
0 :0x13                                                         0 :0x13
1 :0x45                                                       | 1 :0x55
2 :0x1e                                                       | 2 :0x06	R2: TX antenna control
3 :0x02                                                         3 :0x02
4 :0x19                                                         4 :0x19
5 :0x09                                                       | 5 :0x0b
6 :0x00                                                       | 6 :0x10
7 :0x0e                                                       | 7 :0x00
8 :0x00                                                         8 :0x00
9 :0x00                                                         9 :0x00
10 :0x00                                                        10 :0x00
11 :0x04                                                        11 :0x04
12 :0x00                                                      | 12 :0x01
13 :0x70                                                      | 13 :0xa8
14 :0x1a                                                        14 :0x1a
15 :0x30                                                        15 :0x30
16 :0xac                                                        16 :0xac
17 :0x60                                                      | 17 :0x00
18 :0x18                                                        18 :0x18
19 :0xff                                                        19 :0xff
20 :0x1e                                                        20 :0x1e
21 :0x18                                                        21 :0x18
22 :0x18                                                        22 :0x18
23 :0x08                                                        23 :0x08
24 :0x68                                                      | 24 :0x80
25 :0x38                                                      | 25 :0x50
26 :0x08                                                        26 :0x08
27 :0x23                                                        27 :0x23
28 :0x18                                                        28 :0x18
29 :0x18                                                        29 :0x18
30 :0x10                                                        30 :0x10
31 :0x2b                                                        31 :0x2b
32 :0xb9                                                        32 :0xb9
33 :0x55                                                        33 :0x55
34 :0x12                                                        34 :0x12
35 :0x50                                                        35 :0x50
36 :0x11                                                        36 :0x11
37 :0x05                                                        37 :0x05
38 :0x00                                                        38 :0x00
39 :0xc4                                                        39 :0xc4
40 :0x02                                                        40 :0x02
41 :0x60                                                        41 :0x60
42 :0x08                                                      | 42 :0x09
43 :0x01                                                      | 43 :0x34
44 :0x78                                                      | 44 :0x0b
45 :0x00                                                      | 45 :0x6e
46 :0x38                                                      | 46 :0x70
47 :0x0a                                                        47 :0x0a
48 :0x04                                                        48 :0x04
49 :0x02                                                        49 :0x02
50 :0x68                                                        50 :0x68
51 :0x56                                                      | 51 :0x18
52 :0x2e                                                      | 52 :0x04
53 :0x10                                                        53 :0x10
54 :0x18                                                        54 :0x18
55 :0x7b                                                      | 55 :0x2d
56 :0x08                                                        56 :0x08
57 :0x10                                                        57 :0x10
58 :0x08                                                        58 :0x08
59 :0x02                                                        59 :0x02
60 :0x3f                                                      | 60 :0x3e
61 :0x6f                                                      | 61 :0x5f
62 :0x00                                                        62 :0x00
63 :0x00                                                        63 :0x00
64 :0x01                                                        64 :0x01
65 :0x03                                                        65 :0x03
66 :0x00                                                        66 :0x00
67 :0x00                                                        67 :0x00
68 :0x00                                                        68 :0x00
69 :0x00                                                        69 :0x00
70 :0x46                                                        70 :0x46
71 :0x00                                                        71 :0x00
72 :0x00                                                        72 :0x00
73 :0x00                                                        73 :0x00
74 :0xd4                                                        74 :0xd4
75 :0xff                                                        75 :0xff
76 :0x19                                                        76 :0x19
77 :0x05                                                        77 :0x05
78 :0x08                                                        78 :0x08
79 :0x00                                                        79 :0x00
80 :0x00                                                        80 :0x00
81 :0x05                                                        81 :0x05
82 :0x14                                                        82 :0x14
83 :0x50                                                        83 :0x50
84 :0xc0                                                        84 :0xc0
85 :0x10                                                        85 :0x10
86 :0x74                                                      | 86 :0xcf
87 :0x04                                                      | 87 :0x00
88 :0x00                                                        88 :0x00
89 :0x00                                                        89 :0x00
90 :0x00                                                        90 :0x00
91 :0x00                                                        91 :0x00
92 :0x00                                                        92 :0x00
93 :0x00                                                        93 :0x00
94 :0x00                                                        94 :0x00
95 :0x00                                                        95 :0x00

rf                                                              rf
0 :0x00000000                                                   0 :0x00000000
1 :0x00022010                                                   1 :0x00022010
2 :0x000008a6                                                   2 :0x000008a6
3 :0x00063711                                                 | 3 :0x00062d11
4 :0x00000e07                                                   4 :0x00000e07

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc (fwd)

[Rogério Brito]

Hi, all. (And Hi Linus!)

On Jun 29 2008, Ivo van Doorn wrote:
> Rogério Brito wrote:
> > Just for your information, I just compiled the -rc7 kernel on x86-64 (where
> > rt2500usb works if I boot with kernel 2.6.25) and still doesn't work (I'm
> > not even mentioning here PowerPC).

Just to reiterate, for both Ivo and John and people on the rt2400 list
(who may not seem my earlier problem reports that went back and forth with
Ivo), I'm willing to test any tree to get the driver working with my D-Link
DWL-G122 stick revision B (which actually works with with the rt2500usb
driver, if I boot with kernel 2.6.25, as mentioned above, but has problems
with 2.6.26-rc* kernels).

I was a bit busy with the lame project (we have just released a new
upstream release, 3.98, after two years of work!) and I have not kept up
with testing the -rc8 and -rc9 kernels that Linus released in the interim,
but I am downloading the patches so that I can see their behavior.

Actually, I did some tests with 2.6.25.4 (which is the kernel that I am
using on my x86-64, pending and update soon to 2.6.25.10 or whatever is the
point-release du jour) and I was very happy to see that I don't need the
non-free firmware from ralink.

Just as a reminder: with 2.6.25.4, I can work with it on x86-64, but not
with PowerPC. With recent 2.6.26-rc* kernels, it stopped working on x86-64
also. :(

Unfortunately, I may be moving in the near future and I would like to bring
my iBook G3 laptop with me (even if dated) so that I can continue my work
on some projects and the only way to connect and to work on then would be
with the USB stick, as I won't probably have wired conection.

Right now, I am unable to connect to the network with the USB stick, as Ivo
mentioned, due to some register differences, which I keep here (see below)
for reference (sorry for the long e-mail, but this is to keep the context
as we have already entered another month and the issue is not fixed and I
hope that Linus won't release the final 2.6.26 yet, as this kernel will
most probably be the one used by some distributions).

As Linus mentioned on
<alpine.LFD.1.10.0807051557500.3016@woody.linux-foundation.org>, he would
like a lot of people testing the changes---no, this bug submitter has not
been kidnapped :)---and this is what I am trying to do (actually, I'm
willing to do git bisect, test new trees---you name it).

Oh, just as a last piece of information, the USB wireless stick works fine
if I boot MacOS X, but Apple has dropped the support for older PowerPC
machines (and even some not so old ones :( ), this is one reason more for
me to want a working Linux release.


Thanks in advance to everybody, Rogério Brito.

P.S.: Here follows Ivo's comments on the register differences taken from
debugfs: 

> In case other people are interested in the register differences as well,
> attached is the real difference between the registers. Registers that are
> different have the register name and meaning on the right side.
> 
> Interesting things to note:
>  - SIFS/EIFS timing is different, which is expected since rt2500usb now
>     listens to mac80211 for this information.
>  - Activity led is disabled, not interesting for this bug, but it really should have
>    been set to 1.
>  - mac80211 now uses short preamble
>  - Basic rates mask is 0, this is very odd....
>  - Link tuner value is set to 0, I seriously doubt that is a correct value
>  - TX power is different, mac80211 probably has set it to something different
> 
> Thats it for now, if anybody has any ideas, please let me know. :)
> 
> Ivo

> 2.6.25.4-1                                                    | 2.6.26-rc5-2
> driver: rt2500usb                                               driver: rt2500usb
> version: 2.0.14                                               | version: 2.1.4
> compiled: Jun 13 2008 01:33:03                                | compiled: Jun  8 2008 17:08:54
> dev_flags: 0x0001012f                                         | dev_flags: 0x00000e2f
> rt chip: 1201                                                   rt chip: 1201
> rf chip: 0005                                                   rf chip: 0005
> revision:00000005                                               revision:00000005
> 
> csr length: 128                                                 csr length: 128
> eeprom length: 53                                               eeprom length: 53
> bbp length: 96                                                  bbp length: 96
> rf length: 5                                                    rf length: 5
> 
> csr                                                             csr
> 0 :0x0005                                                       0 :0x0005
> 1 :0x0004                                                       1 :0x0004
> 2 :0x1300                                                       2 :0x1300
> 3 :0xe946                                                       3 :0xe946
> 4 :0x8a8d                                                       4 :0x8a8d
> 5 :0x1300                                                       5 :0x1300
> 6 :0x5146                                                       6 :0x5146
> 7 :0x6510                                                       7 :0x6510
> 8 :0x0980                                                       8 :0x0980
> 9 :0xff1d                                                       9 :0xff1d
> 10 :0x0014                                                      10 :0x0014
> 11 :0x0005                                                    | 11 :0x000a	MAC_CSR11: SIFS.
> 12 :0x016c                                                    | 12 :0x013a	MAC_CSR12: EIFS.
> 13 :0x1111                                                      13 :0x1111
> 14 :0x1e11                                                      14 :0x1e11
> 15 :0x01ee                                                      15 :0x01ee
> 16 :0x0000                                                      16 :0x0000
> 17 :0x01fe                                                      17 :0x01fe
> 18 :0x005a                                                      18 :0x005a
> 19 :0xff00                                                      19 :0xff00
> 20 :0x0003                                                    | 20 :0x0002	MAC_CSR20: LED control register.
> 21 :0x1e46                                                      21 :0x1e46
> 22 :0x0053                                                      22 :0x0053
> 23 :0x0000                                                      23 :0x0000
> 24 :0x0000                                                      24 :0x0000
> 25 :0x0000                                                      25 :0x0000
> 26 :0x0000                                                      26 :0x0000
> 27 :0x0000                                                      27 :0x0000
> 28 :0x0000                                                      28 :0x0000
> 29 :0x0000                                                      29 :0x0000
> 30 :0x0000                                                      30 :0x0000
> 31 :0x0000                                                      31 :0x0000
> 32 :0x1ec0                                                      32 :0x1ec0
> 33 :0xb11a                                                    | 33 :0xb162	TXRX_CSR1: TX configuration.
> 34 :0x007e                                                      34 :0x007e
> 35 :0xb3af                                                      35 :0xb3af
> 36 :0xb3aa                                                      36 :0xb3aa
> 37 :0x8c8d                                                      37 :0x8c8d
> 38 :0x8b8a                                                      38 :0x8b8a
> 39 :0x8687                                                      39 :0x8687
> 40 :0x0085                                                      40 :0x0085
> 41 :0x0162                                                      41 :0x0162
> 42 :0x000e                                                    | 42 :0x000a	TXRX_CSR10: Auto responder control.
> 43 :0x015f                                                    | 43 :0x0000	TXRX_CSR11: Auto responder basic rate.
> 44 :0x140a                                                      44 :0x140a
> 45 :0x7038                                                      45 :0x7038
> 46 :0x0c13                                                      46 :0x0c13
> 47 :0x0609                                                      47 :0x0609
> 48 :0x0305                                                      48 :0x0305
> 49 :0x0203                                                      49 :0x0203
> 50 :0xfa00                                                      50 :0xfa00
> 51 :0x0003                                                    | 51 :0x000b	TXRX_CSR19: Synchronization control register.
> 52 :0x0003                                                      52 :0x0003
> 53 :0xe78f                                                      53 :0xe78f
> 54 :0x0000                                                      54 :0x0000
> 55 :0x0000                                                      55 :0x0000
> 56 :0x0000                                                      56 :0x0000
> 57 :0x0000                                                      57 :0x0000
> 58 :0x0000                                                      58 :0x0000
> 59 :0x0000                                                      59 :0x0000
> 60 :0x0000                                                      60 :0x0000
> 61 :0x0000                                                      61 :0x0000
> 62 :0x0000                                                      62 :0x0000
> 63 :0x0000                                                      63 :0x0000
> 64 :0x0000                                                      64 :0x0000
> 65 :0x0000                                                      65 :0x0000
> 66 :0x0000                                                      66 :0x0000
> 67 :0x0000                                                      67 :0x0000
> 68 :0x0000                                                      68 :0x0000
> 69 :0x0000                                                      69 :0x0000
> 70 :0x0000                                                      70 :0x0000
> 71 :0x0000                                                      71 :0x0000
> 72 :0x0000                                                      72 :0x0000
> 73 :0x0000                                                      73 :0x0000
> 74 :0x0000                                                      74 :0x0000
> 75 :0x0000                                                      75 :0x0000
> 76 :0x0000                                                      76 :0x0000
> 77 :0x0000                                                      77 :0x0000
> 78 :0x0000                                                      78 :0x0000
> 79 :0x0000                                                      79 :0x0000
> 80 :0x0000                                                      80 :0x0000
> 81 :0x0000                                                      81 :0x0000
> 82 :0x0000                                                      82 :0x0000
> 83 :0x0000                                                      83 :0x0000
> 84 :0x0000                                                      84 :0x0000
> 85 :0x0000                                                      85 :0x0000
> 86 :0x0000                                                      86 :0x0000
> 87 :0x0000                                                      87 :0x0000
> 88 :0x0000                                                      88 :0x0000
> 89 :0x0000                                                      89 :0x0000
> 90 :0x0000                                                      90 :0x0000
> 91 :0x0000                                                      91 :0x0000
> 92 :0x0000                                                      92 :0x0000
> 93 :0x0000                                                      93 :0x0000
> 94 :0x0000                                                      94 :0x0000
> 95 :0x0000                                                      95 :0x0000
> 96 :0x1221                                                      96 :0x1221
> 97 :0x0003                                                      97 :0x0003
> 98 :0x0000                                                      98 :0x0000
> 99 :0x0000                                                      99 :0x0000
> 100 :0x000f                                                     100 :0x000f
> 101 :0x8206                                                     101 :0x8206
> 102 :0x821e                                                     102 :0x821e
> 103 :0x9160                                                   | 103 :0x9100	PHY_CSR7: BBP access register 0.
> 104 :0x0000                                                     104 :0x0000
> 105 :0x0e07                                                     105 :0x0e07
> 106 :0x5400                                                     106 :0x5400
> 107 :0x0000                                                     107 :0x0000
> 108 :0x0000                                                     108 :0x0000
> 109 :0x0000                                                     109 :0x0000
> 110 :0x0000                                                     110 :0x0000
> 111 :0x0000                                                     111 :0x0000
> 112 :0x0000                                                   | 112 :0x032c	STA_CSR0: FCS error count.
> 113 :0x01a9                                                   | 113 :0xfb58	STA_CSR1: PLCP error count.
> 114 :0x0038                                                   | 114 :0x6311	STA_CSR2: LONG error count.
> 115 :0x0000                                                   | 115 :0x0a1f	STA_CSR3: CCA false alarm.
> 116 :0x0000                                                     116 :0x0000
> 117 :0x0000                                                     117 :0x0000
> 118 :0x0169                                                   | 118 :0x0000	STA_CSR6
> 119 :0x0011                                                   | 119 :0x0000	STA_CSR7
> 120 :0x0000                                                     120 :0x0000
> 121 :0x0000                                                     121 :0x0000
> 122 :0x0a01                                                   | 122 :0x02e1	STA_CSR10
> 123 :0x0000                                                     123 :0x0000
> 124 :0x0000                                                     124 :0x0000
> 125 :0x0000                                                     125 :0x0000
> 126 :0x0000                                                     126 :0x0000
> 127 :0x0000                                                     127 :0x0000
> 
> eeprom                                                          eeprom
> 0 :0x2570                                                       0 :0x2570
> 1 :0x0104                                                       1 :0x0104
> 2 :0x1300                                                       2 :0x1300
> 3 :0xe946                                                       3 :0xe946
> 4 :0x8a8d                                                       4 :0x8a8d
> 5 :0xffff                                                       5 :0xffff
> 6 :0xffff                                                       6 :0xffff
> 7 :0xffff                                                       7 :0xffff
> 8 :0xffff                                                       8 :0xffff
> 9 :0xffff                                                       9 :0xffff
> 10 :0xffff                                                      10 :0xffff
> 11 :0x2829                                                      11 :0x2829
> 12 :0xfff0                                                      12 :0xfff0
> 13 :0x00ff                                                      13 :0x00ff
> 14 :0x112c                                                      14 :0x112c
> 15 :0x1518                                                      15 :0x1518
> 16 :0x1618                                                      16 :0x1618
> 17 :0x3e00                                                      17 :0x3e00
> 18 :0xffff                                                      18 :0xffff
> 19 :0xffff                                                      19 :0xffff
> 20 :0xffff                                                      20 :0xffff
> 21 :0xffff                                                      21 :0xffff
> 22 :0xffff                                                      22 :0xffff
> 23 :0xffff                                                      23 :0xffff
> 24 :0xffff                                                      24 :0xffff
> 25 :0xffff                                                      25 :0xffff
> 26 :0xffff                                                      26 :0xffff
> 27 :0xffff                                                      27 :0xffff
> 28 :0xffff                                                      28 :0xffff
> 29 :0xffff                                                      29 :0xffff
> 30 :0x1717                                                      30 :0x1717
> 31 :0x1717                                                      31 :0x1717
> 32 :0x1717                                                      32 :0x1717
> 33 :0x1717                                                      33 :0x1717
> 34 :0x1617                                                      34 :0x1617
> 35 :0x1616                                                      35 :0x1616
> 36 :0x1616                                                      36 :0x1616
> 37 :0xffff                                                      37 :0xffff
> 38 :0xffff                                                      38 :0xffff
> 39 :0xffff                                                      39 :0xffff
> 40 :0xffff                                                      40 :0xffff
> 41 :0xffff                                                      41 :0xffff
> 42 :0xffff                                                      42 :0xffff
> 43 :0xffff                                                      43 :0xffff
> 44 :0xffff                                                      44 :0xffff
> 45 :0xffff                                                      45 :0xffff
> 46 :0xffff                                                      46 :0xffff
> 47 :0xffff                                                      47 :0xffff
> 48 :0x0032                                                      48 :0x0032
> 49 :0x6880                                                      49 :0x6880
> 50 :0x3850                                                      50 :0x3850
> 51 :0x6f5f                                                      51 :0x6f5f
> 52 :0xff37                                                    | 52 :0xfa00
> 
> bbp                                                             bbp
> 0 :0x13                                                         0 :0x13
> 1 :0x45                                                       | 1 :0x55
> 2 :0x1e                                                       | 2 :0x06	R2: TX antenna control
> 3 :0x02                                                         3 :0x02
> 4 :0x19                                                         4 :0x19
> 5 :0x09                                                       | 5 :0x0b
> 6 :0x00                                                       | 6 :0x10
> 7 :0x0e                                                       | 7 :0x00
> 8 :0x00                                                         8 :0x00
> 9 :0x00                                                         9 :0x00
> 10 :0x00                                                        10 :0x00
> 11 :0x04                                                        11 :0x04
> 12 :0x00                                                      | 12 :0x01
> 13 :0x70                                                      | 13 :0xa8
> 14 :0x1a                                                        14 :0x1a
> 15 :0x30                                                        15 :0x30
> 16 :0xac                                                        16 :0xac
> 17 :0x60                                                      | 17 :0x00
> 18 :0x18                                                        18 :0x18
> 19 :0xff                                                        19 :0xff
> 20 :0x1e                                                        20 :0x1e
> 21 :0x18                                                        21 :0x18
> 22 :0x18                                                        22 :0x18
> 23 :0x08                                                        23 :0x08
> 24 :0x68                                                      | 24 :0x80
> 25 :0x38                                                      | 25 :0x50
> 26 :0x08                                                        26 :0x08
> 27 :0x23                                                        27 :0x23
> 28 :0x18                                                        28 :0x18
> 29 :0x18                                                        29 :0x18
> 30 :0x10                                                        30 :0x10
> 31 :0x2b                                                        31 :0x2b
> 32 :0xb9                                                        32 :0xb9
> 33 :0x55                                                        33 :0x55
> 34 :0x12                                                        34 :0x12
> 35 :0x50                                                        35 :0x50
> 36 :0x11                                                        36 :0x11
> 37 :0x05                                                        37 :0x05
> 38 :0x00                                                        38 :0x00
> 39 :0xc4                                                        39 :0xc4
> 40 :0x02                                                        40 :0x02
> 41 :0x60                                                        41 :0x60
> 42 :0x08                                                      | 42 :0x09
> 43 :0x01                                                      | 43 :0x34
> 44 :0x78                                                      | 44 :0x0b
> 45 :0x00                                                      | 45 :0x6e
> 46 :0x38                                                      | 46 :0x70
> 47 :0x0a                                                        47 :0x0a
> 48 :0x04                                                        48 :0x04
> 49 :0x02                                                        49 :0x02
> 50 :0x68                                                        50 :0x68
> 51 :0x56                                                      | 51 :0x18
> 52 :0x2e                                                      | 52 :0x04
> 53 :0x10                                                        53 :0x10
> 54 :0x18                                                        54 :0x18
> 55 :0x7b                                                      | 55 :0x2d
> 56 :0x08                                                        56 :0x08
> 57 :0x10                                                        57 :0x10
> 58 :0x08                                                        58 :0x08
> 59 :0x02                                                        59 :0x02
> 60 :0x3f                                                      | 60 :0x3e
> 61 :0x6f                                                      | 61 :0x5f
> 62 :0x00                                                        62 :0x00
> 63 :0x00                                                        63 :0x00
> 64 :0x01                                                        64 :0x01
> 65 :0x03                                                        65 :0x03
> 66 :0x00                                                        66 :0x00
> 67 :0x00                                                        67 :0x00
> 68 :0x00                                                        68 :0x00
> 69 :0x00                                                        69 :0x00
> 70 :0x46                                                        70 :0x46
> 71 :0x00                                                        71 :0x00
> 72 :0x00                                                        72 :0x00
> 73 :0x00                                                        73 :0x00
> 74 :0xd4                                                        74 :0xd4
> 75 :0xff                                                        75 :0xff
> 76 :0x19                                                        76 :0x19
> 77 :0x05                                                        77 :0x05
> 78 :0x08                                                        78 :0x08
> 79 :0x00                                                        79 :0x00
> 80 :0x00                                                        80 :0x00
> 81 :0x05                                                        81 :0x05
> 82 :0x14                                                        82 :0x14
> 83 :0x50                                                        83 :0x50
> 84 :0xc0                                                        84 :0xc0
> 85 :0x10                                                        85 :0x10
> 86 :0x74                                                      | 86 :0xcf
> 87 :0x04                                                      | 87 :0x00
> 88 :0x00                                                        88 :0x00
> 89 :0x00                                                        89 :0x00
> 90 :0x00                                                        90 :0x00
> 91 :0x00                                                        91 :0x00
> 92 :0x00                                                        92 :0x00
> 93 :0x00                                                        93 :0x00
> 94 :0x00                                                        94 :0x00
> 95 :0x00                                                        95 :0x00
> 
> rf                                                              rf
> 0 :0x00000000                                                   0 :0x00000000
> 1 :0x00022010                                                   1 :0x00022010
> 2 :0x000008a6                                                   2 :0x000008a6
> 3 :0x00063711                                                 | 3 :0x00062d11
> 4 :0x00000e07                                                   4 :0x00000e07

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc (fwd)

[Ivo van Doorn]

Hi,

Could you try some of the following tests to control the registers:
I have grouped each test together, please don't do them all in one single shot,
since that will not help narrowing down the exact register which breaks everything.

> > 11 :0x0005                                                    | 11 :0x000a	MAC_CSR11: SIFS.
> > 12 :0x016c                                                    | 12 :0x013a	MAC_CSR12: EIFS.

echo 11 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_offset
echo 5 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_value
echo 12 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_offset
echo 364 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_value

---

> > 33 :0xb11a                                                    | 33 :0xb162	TXRX_CSR1: TX configuration.

echo 33 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_offset
echo 45338 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_value

---

> > 42 :0x000e                                                    | 42 :0x000a	TXRX_CSR10: Auto responder control.
> > 43 :0x015f                                                    | 43 :0x0000	TXRX_CSR11: Auto responder basic rate.

echo 42 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_offset
echo 14 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_value
echo 43 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_offset
echo 351 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_value

---

> > 2 :0x1e                                                       | 2 :0x06	R2: TX antenna control

echo 2 > /<debugfsroot>/<mac80211>/rt2500usb/register/bbp_offset
echo 30 > /<debugfsroot>/<mac80211>/rt2500usb/register/bbp_value

Ivo

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc (fwd)

[Rogério Brito]

[-- Attachment #1: Type: text/plain, Size: 4237 bytes --]

Hi, Ivo, John, Linus and all the people at the mailing lists.

It seems that I'm flooded with bad luck. :-( I tried the modifications
in the script attached (progressively uncommenting the commands, as you
asked me), but it seems that I had the bad luck that nothing worked with
kernel 2.6.26-rc5. I also tried with kernel 2.6.26-rc9, but again,
nothing worked [*].

The only thing that gave a signal of life was when I imitated what you
did and set the led register to the value that was present on the
2.6.25.x kernel. Then, a "iwconfig wlan0 ap any" gave me blinks on the
"Act" led each time that I issued the command.

Attached also is the "meat" of the dmesg of my system. You may notice
that after some time, I tried simply "ifdown wlan0" and "ifup wlan0" in
my Debian system. These commands are responsible, as you should guess,
for bringing an interface down and up.

I have not checked closely, but it seems that the modifications to the
registers are lost when you bring the interface down---is that right?
>From the dmesg logs, this seems to be the case.

On Jul 08 2008, Ivo van Doorn wrote:
> Hi,
> 
> Could you try some of the following tests to control the registers:
> I have grouped each test together, please don't do them all in one single shot,
> since that will not help narrowing down the exact register which
> breaks everything.

Again, I didn't do everything in one single shot. I tested your
directions one at a time (first the 1st one, then, the 1st set and the
2nd set, then the 1st, 2nd, and 3rd set etc).

> > > 11 :0x0005                                                    | 11 :0x000a	MAC_CSR11: SIFS.
> > > 12 :0x016c                                                    | 12 :0x013a	MAC_CSR12: EIFS.
> 
> echo 11 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_offset
> echo 5 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_value
> echo 12 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_offset
> echo 364 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_value
> 
> ---
> 
> > > 33 :0xb11a                                                    | 33 :0xb162	TXRX_CSR1: TX configuration.
> 
> echo 33 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_offset
> echo 45338 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_value
> 
> ---
> 
> > > 42 :0x000e                                                    | 42 :0x000a	TXRX_CSR10: Auto responder control.
> > > 43 :0x015f                                                    | 43 :0x0000	TXRX_CSR11: Auto responder basic rate.
> 
> echo 42 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_offset
> echo 14 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_value
> echo 43 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_offset
> echo 351 > /<debugfsroot>/<mac80211>/rt2500usb/register/csr_value
> 
> ---
> 
> > > 2 :0x1e                                                       | 2 :0x06	R2: TX antenna control
> 
> echo 2 > /<debugfsroot>/<mac80211>/rt2500usb/register/bbp_offset
> echo 30 > /<debugfsroot>/<mac80211>/rt2500usb/register/bbp_value

I attach to this message the commands that I used. As you can see, I
tried some which seemed to me (as a layman) that would make some
difference, but they did nothing. :-( My commands were based on some of
the differences that you narrowed down in the last message.


Thank you very much, Rogério Brito.

[*] Actually, I got it once to work/authenticate with kernel 2.6.26-rc9,
but I couldn't reproduce the steps to that. I tried loading all the
registers this time with the script that I attach here, and I was so sad
that it didn't work a second time (and a third, etc) that I was running
a script that did:

"ifconfig wlan0 up; iwconfig wlan0 key s:xxx; iwconfig wlan0 essid
default" && iwconfig wlan0

Not even once it showed that it was associated with the ap, but once in
a while (not every time) that I run the line above the "act" led blinked
and the messages generated on the dmesg were slightly different from one
time to another (compressed, the log is quite small).
-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

[-- Attachment #2: rtusb2500-try04.txt --]
[-- Type: text/plain, Size: 1274 bytes --]

#!/bin/sh

echo 11 > /debug/ieee80211/phy0/rt2500usb/register/csr_offset
echo 5 > /debug/ieee80211/phy0/rt2500usb/register/csr_value
echo 12 > /debug/ieee80211/phy0/rt2500usb/register/csr_offset
echo 364 > /debug/ieee80211/phy0/rt2500usb/register/csr_value

echo 33 > /debug/ieee80211/phy0/rt2500usb/register/csr_offset
echo 45338 > /debug/ieee80211/phy0/rt2500usb/register/csr_value

echo 42 > /debug/ieee80211/phy0/rt2500usb/register/csr_offset
echo 14 > /debug/ieee80211/phy0/rt2500usb/register/csr_value
echo 43 > /debug/ieee80211/phy0/rt2500usb/register/csr_offset
echo 351 > /debug/ieee80211/phy0/rt2500usb/register/csr_value

echo 2 > /debug/ieee80211/phy0/rt2500usb/register/bbp_offset
echo 30 > /debug/ieee80211/phy0/rt2500usb/register/bbp_value

# My modifications
echo 20 > /debug/ieee80211/phy0/rt2500usb/register/csr_offset
echo 3 > /debug/ieee80211/phy0/rt2500usb/register/csr_value

echo 103 > /debug/ieee80211/phy0/rt2500usb/register/csr_offset
echo 37216 > /debug/ieee80211/phy0/rt2500usb/register/csr_value


echo 51 > /debug/ieee80211/phy0/rt2500usb/register/csr_offset
echo 3 > /debug/ieee80211/phy0/rt2500usb/register/csr_value

echo 3 > /debug/ieee80211/phy0/rt2500usb/register/rf_offset
echo 407313 > /debug/ieee80211/phy0/rt2500usb/register/rf_value

[-- Attachment #3: dmesg-with-2.6.25.txt --]
[-- Type: text/plain, Size: 1626 bytes --]

phy0 -> rt2500usb_init_bbp: Debug - Start initialization from EEPROM...
phy0 -> rt2500usb_init_bbp: Debug - BBP: 0x11, value: 0x2c.
phy0 -> rt2500usb_init_bbp: Debug - BBP: 0x15, value: 0x18.
phy0 -> rt2500usb_init_bbp: Debug - BBP: 0x16, value: 0x18.
phy0 -> rt2500usb_init_bbp: Debug - BBP: 0x3e, value: 0x00.
phy0 -> rt2500usb_init_bbp: Debug - ...End initialization from EEPROM.
HW CONFIG: channel=1 freq=2412 phymode=2
phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 0 - CWmin: 4, CWmax: 10, Aifs: 2.
phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 1 - CWmin: 4, CWmax: 10, Aifs: 2.
phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 7 - CWmin: 5, CWmax: 10, Aifs: 2.
HW CONFIG: channel=1 freq=2412 phymode=2
HW CONFIG: channel=2 freq=2417 phymode=2
HW CONFIG: channel=3 freq=2422 phymode=2
HW CONFIG: channel=4 freq=2427 phymode=2
HW CONFIG: channel=5 freq=2432 phymode=2
HW CONFIG: channel=6 freq=2437 phymode=2
HW CONFIG: channel=7 freq=2442 phymode=2
HW CONFIG: channel=8 freq=2447 phymode=2
HW CONFIG: channel=9 freq=2452 phymode=2
HW CONFIG: channel=10 freq=2457 phymode=2
HW CONFIG: channel=11 freq=2462 phymode=2
HW CONFIG: channel=1 freq=2412 phymode=2
HW CONFIG: channel=6 freq=2437 phymode=2
wlan0: Initial auth_alg=0
wlan0: authenticate with AP 00:13:46:51:10:65
wlan0: RX authentication from 00:13:46:51:10:65 (alg=0 transaction=2 status=0)
wlan0: authenticated
wlan0: associate with AP 00:13:46:51:10:65
wlan0: RX AssocResp from 00:13:46:51:10:65 (capab=0x431 status=0 aid=1)
wlan0: associated
wlan0: switched to short barker preamble (BSSID=00:13:46:51:10:65)
phy0: Added STA 00:13:46:51:10:65

[-- Attachment #4: dmesg-2.6.26-rc9.txt.gz --]
[-- Type: application/octet-stream, Size: 1037 bytes --]

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc (fwd)

[Ivo van Doorn]

Hi,

> On Jun 20 2008, Rogério Brito wrote:
> > On Jun 20 2008, Ivo van Doorn wrote:
> > > 
> > > > Did you receive my earlier message (attached here for reference)? I'm
> > > > willing to experiment with the driver a little bit and I hope that the
> > > > information that I have provided so far is helpful to chase the reason
> > > > why the driver doesn't work on PowerPC.
> > > 
> > > Sorry I have been quite busy with other things.
> > 
> > I'm terribly sorry for that, since I would like the driver to work with
> > the USB stick still in the 2.6.26 release (since that's what some
> > distributions will probably use).
> 
> Just for your information, I just compiled the -rc7 kernel on x86-64 (where
> rt2500usb works if I boot with kernel 2.6.25) and still doesn't work (I'm
> not even mentioning here PowerPC).

I have found the problem and have send it upstream so the patch should
be present in 2.6.27. Note that I am not going to push it to 2.6.26 since
I don't know if the patch will cause problems in other parts of the driver.

Ivo

Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc

[Rogério Brito]

Hi, Ivo, John and others.

On Aug 04 2008, Ivo van Doorn wrote:
> Rogério Brito wrote:
> > Just for your information, I just compiled the -rc7 kernel on x86-64
> > (where rt2500usb works if I boot with kernel 2.6.25) and still
> > doesn't work (I'm not even mentioning here PowerPC).
> 
> I have found the problem and have send it upstream so the patch should
> be present in 2.6.27.

Thanks for your e-mail. Indeed, I just compiled a 2.6.27-rc2 kernel and
it worked fine on x86-64 at least, which is a good thing. The only small
problem that I see is that the activity led doesn't blink when the
interface is sending or receiving data.

Regarding PowerPC, unfortunately, my iBook's battery died and I will get
a replacement to it (as soon as I can afford it). I also have yet to
find some time to compile a kernel for it, but I am happy to report the
results that I get (compiling the kernel will be easy, but installing on
it will take me some time as my Linux installation on it seems to be
messed up).

> Note that I am not going to push it to 2.6.26 since I don't know if
> the patch will cause problems in other parts of the driver.

Ok, I see it. There were lots of changes in mac80211 too, from a quick
glance at the patch.


Thanks, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

Still some problems with the rt2x00 driver

[Rogério Brito]

Hi again, Ivo, John and others.

On Aug 04 2008, Ivo van Doorn wrote:
> I have found the problem and have send it upstream so the patch  
> should be
> present in 2.6.27.

Well, it works ok (but see below) on powerpc, with a 2.6.27 kernel (I  
still have not upgraded it).

There are two strange things that I've noticed, though and that I  
feel need to be fixed:

1 - the rt63 driver used by a PCMCIA card DWL-G630 model has, for  
many kernels (from 2.6.24 and up to and including kernel 2.6.27, as  
shipped by Ubuntu for ia32), shown a strange behavior: after  
everything is working correctly, the network simply becomes  
unavailable, with the gnome network monitor showing that the card has  
no signal. If I issue the command "iwconfig ra0 ap any", for example,  
the card starts working again.

(Actually, I put this on a cron job to be executed every minute, but  
even then, there are time windows where the card is not working). I'm  
not in front of the notebook (a very old Armada V300 that my parents  
are using for production), so I don't know if the card looses  
association with the Access Point or not. I can check that, if nobody  
else reported this problem yet.

2 - the rt2500usb driver that I use on a very old iBook G3 (powerpc)  
also works fine and has a similar, but not identical behaviour: the  
DWL-G122 USB stick that I have works fine once associated and when it  
is transferring data. Once I leave the network unused for, say, 2  
minutes, the connection with the AP is dropped. Here, also, issuing  
"iwconfig wlan0 ap any" makes it work again.

Notice the difference in both cases: with the PCMCIA/ia32 case, no  
matter if there is traffic on the network or not, the the connection  
is interrupted. With the USB/powerpc case, if there is traffic, the  
connection remains working fine.

> Note that I am not going to push it to 2.6.26 since I don't know if  
> the
> patch will cause problems in other parts of the driver.

There's no problem. I can compile vanilla kernels from kernel.org  
without any problems.


Thanks for your kind help, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

Re: Still some problems with the rt2x00 driver

[Ivo van Doorn]

Hi,

> There are two strange things that I've noticed, though and that I  
> feel need to be fixed:

For both cases:
Is there anything in the log regading the drivers or mac80211?

Ivo

> 1 - the rt63 driver used by a PCMCIA card DWL-G630 model has, for  
> many kernels (from 2.6.24 and up to and including kernel 2.6.27, as  
> shipped by Ubuntu for ia32), shown a strange behavior: after  
> everything is working correctly, the network simply becomes  
> unavailable, with the gnome network monitor showing that the card has  
> no signal. If I issue the command "iwconfig ra0 ap any", for example,  
> the card starts working again.
> 
> (Actually, I put this on a cron job to be executed every minute, but  
> even then, there are time windows where the card is not working). I'm  
> not in front of the notebook (a very old Armada V300 that my parents  
> are using for production), so I don't know if the card looses  
> association with the Access Point or not. I can check that, if nobody  
> else reported this problem yet.
> 
> 2 - the rt2500usb driver that I use on a very old iBook G3 (powerpc)  
> also works fine and has a similar, but not identical behaviour: the  
> DWL-G122 USB stick that I have works fine once associated and when it  
> is transferring data. Once I leave the network unused for, say, 2  
> minutes, the connection with the AP is dropped. Here, also, issuing  
> "iwconfig wlan0 ap any" makes it work again.
> 
> Notice the difference in both cases: with the PCMCIA/ia32 case, no  
> matter if there is traffic on the network or not, the the connection  
> is interrupted. With the USB/powerpc case, if there is traffic, the  
> connection remains working fine.
> 
> > Note that I am not going to push it to 2.6.26 since I don't know if  
> > the
> > patch will cause problems in other parts of the driver.
> 
> There's no problem. I can compile vanilla kernels from kernel.org  
> without any problems.
> 
> 
> Thanks for your kind help, Rogério Brito.
> 

Re: Still some problems with the rt2x00 driver

[Rogério Brito]

[-- Attachment #1: Type: text/plain, Size: 962 bytes --]

Hi, Ivo, John and others.

First of all, sorry for the late reply. But I'm still here and I can
help get things straight. I just had some (once more) health problems
(I'm not currently that well).

On Tue, Nov 25, 2008 at 6:42 AM, Ivo van Doorn <ivdoorn@gmail.com> wrote:
> Hi,
>
>> There are two strange things that I've noticed, though and that I
>> feel need to be fixed:
>
> For both cases:
> Is there anything in the log regading the drivers or mac80211?

Yes, there are. Here I reproduce the logs from both 2.6.27.x which is
an experimental one from the Debian kernel team and the logs from a
2.6.28-rc6 kernel compiled by myself (with some extra debugging
enabled).


Thanks for your kind help, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

[-- Attachment #2: rt2500usb-disassociation.txt --]
[-- Type: text/plain, Size: 2393 bytes --]

[  643.246655] usb 2-1: USB disconnect, address 2
[  663.093109] usb 2-1: new full speed USB device using ohci_hcd and address 3
[  663.409791] usb 2-1: configuration #1 chosen from 1 choice
[  663.422026] usb 2-1: New USB device found, idVendor=2001, idProduct=3c00
[  663.422058] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[  663.422067] usb 2-1: Product: 802.11g WLAN Adapter    
[  663.422074] usb 2-1: Manufacturer: ANI 
[  664.631468] phy0: Selected rate control algorithm 'pid'
[  665.065967] Registered led device: rt2500usb-phy0:radio
[  665.068869] usbcore: registered new interface driver rt2500usb
[  692.429861] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[  694.125465] wlan0: authenticate with AP 00:13:46:51:10:65
[  694.127508] wlan0: authenticated
[  694.127536] wlan0: associate with AP 00:13:46:51:10:65
[  694.130502] wlan0: RX AssocResp from 00:13:46:51:10:65 (capab=0x431 status=0 aid=1)
[  694.130522] wlan0: associated
[  694.138610] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[  704.793080] wlan0: no IPv6 routers present
[ 1093.359818] RPC: Registered udp transport module.
[ 1093.359844] RPC: Registered tcp transport module.
[ 2418.297105] ondemand governor failed, too long transition latency of HW, fallback to performance governor
[ 4675.685561] wlan0: disassociated
[ 4676.686006] wlan0: associate with AP 00:13:46:51:10:65
[ 4676.688605] wlan0: RX ReassocResp from 00:13:46:51:10:65 (capab=0x431 status=17 aid=1)
[ 4676.688627] wlan0: AP denied association (code=17)
[ 4676.885138] wlan0: associate with AP 00:13:46:51:10:65
[ 4676.887520] wlan0: RX AssocResp from 00:13:46:51:10:65 (capab=0x431 status=17 aid=1073)
[ 4676.887539] wlan0: AP denied association (code=17)
[ 4677.085099] wlan0: associate with AP 00:13:46:51:10:65
[ 4677.087534] wlan0: RX AssocResp from 00:13:46:51:10:65 (capab=0x431 status=17 aid=1073)
[ 4677.087552] wlan0: AP denied association (code=17)
[ 4677.289225] wlan0: association with AP 00:13:46:51:10:65 timed out

Now, I don't have access to the network. I, now, issue "iwconfig wlan0 ap any"
and it goes working again:

[ 5841.260475] wlan0: authenticate with AP 00:13:46:51:10:65
[ 5841.262529] wlan0: authenticated
[ 5841.262560] wlan0: associate with AP 00:13:46:51:10:65
[ 5841.265499] wlan0: RX AssocResp from 00:13:46:51:10:65 (capab=0x431 status=0 aid=1)
[ 5841.265519] wlan0: associated

[-- Attachment #3: rt2500usb-disassociation-2.6.28-rc6.txt --]
[-- Type: text/plain, Size: 2869 bytes --]

phy0: HW CONFIG: freq=2437
phy0: HW CONFIG: freq=2442
phy0: HW CONFIG: freq=2447
phy0: HW CONFIG: freq=2452
phy0: HW CONFIG: freq=2457
phy0: HW CONFIG: freq=2462
phy0: HW CONFIG: freq=2412
phy0: HW CONFIG: freq=2437
phy0 -> rt2x00mac_conf_tx: Info - Configured TX queue 0 - CWmin: 4, CWmax: 10, Aifs: 2, TXop: 0.
phy0 -> rt2x00mac_conf_tx: Info - Configured TX queue 1 - CWmin: 4, CWmax: 10, Aifs: 2, TXop: 0.
wlan0: authenticate with AP 00:13:46:51:10:65
wlan0: authenticated
wlan0: associate with AP 00:13:46:51:10:65
wlan0: RX AssocResp from 00:13:46:51:10:65 (capab=0x431 status=0 aid=1)
wlan0: associated
phy0: Allocated STA 00:13:46:51:10:65
phy0: Inserted STA 00:13:46:51:10:65
wlan0: switched to short barker preamble (BSSID=00:13:46:51:10:65)
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
PM: Adding info for No Bus:0:18
wlan0: disassociated
phy0: Removed STA 00:13:46:51:10:65
phy0: Destroyed STA 00:13:46:51:10:65
wlan0: associate with AP 00:13:46:51:10:65
wlan0: RX ReassocResp from 00:13:46:51:10:65 (capab=0x431 status=17 aid=1)
wlan0: AP denied association (code=17)
wlan0: associate with AP 00:13:46:51:10:65
wlan0: RX AssocResp from 00:13:46:51:10:65 (capab=0x431 status=17 aid=1073)
wlan0: AP denied association (code=17)
wlan0: associate with AP 00:13:46:51:10:65
wlan0: RX AssocResp from 00:13:46:51:10:65 (capab=0x431 status=17 aid=1073)
wlan0: AP denied association (code=17)
wlan0: association with AP 00:13:46:51:10:65 timed out

Again, here I lost access to the network. Issuing "iwconfig wlan0 ap any"
restores the access to the network.

phy0: HW CONFIG: freq=2437
phy0 -> rt2x00mac_conf_tx: Info - Configured TX queue 0 - CWmin: 4, CWmax: 10, Aifs: 2, TXop: 0.
phy0 -> rt2x00mac_conf_tx: Info - Configured TX queue 1 - CWmin: 4, CWmax: 10, Aifs: 2, TXop: 0.
wlan0: direct probe to AP 00:13:46:51:10:65 try 1
wlan0 direct probe responded
wlan0: authenticate with AP 00:13:46:51:10:65
wlan0: authenticated
wlan0: associate with AP 00:13:46:51:10:65
wlan0: RX AssocResp from 00:13:46:51:10:65 (capab=0x431 status=0 aid=1)
wlan0: associated
phy0: Allocated STA 00:13:46:51:10:65
phy0: Inserted STA 00:13:46:51:10:65
wlan0: switched to short barker preamble (BSSID=00:13:46:51:10:65)

Again:

wlan0: disassociated
phy0: Removed STA 00:13:46:51:10:65
phy0: Destroyed STA 00:13:46:51:10:65
wlan0: associate with AP 00:13:46:51:10:65
wlan0: RX ReassocResp from 00:13:46:51:10:65 (capab=0x431 status=17 aid=1)
wlan0: AP denied association (code=17)
wlan0: associate with AP 00:13:46:51:10:65
wlan0: RX AssocResp from 00:13:46:51:10:65 (capab=0x431 status=17 aid=1073)
wlan0: AP denied association (code=17)
wlan0: associate with AP 00:13:46:51:10:65
wlan0: RX AssocResp from 00:13:46:51:10:65 (capab=0x431 status=17 aid=1073)
wlan0: AP denied association (code=17)
wlan0: association with AP 00:13:46:51:10:65 timed out

Re: Still some problems with the rt2x00 driver

[Rogério Brito]

Hi again, Ivo.

On Mon, Dec 1, 2008 at 11:56 PM, Rogério Brito <rbrito@ime.usp.br> wrote:
> On Tue, Nov 25, 2008 at 6:42 AM, Ivo van Doorn <ivdoorn@gmail.com> wrote:
>> For both cases:
>> Is there anything in the log regading the drivers or mac80211?
>
> Yes, there are. Here I reproduce the logs from both 2.6.27.x which is
> an experimental one from the Debian kernel team and the logs from a
> 2.6.28-rc6 kernel compiled by myself (with some extra debugging
> enabled).

Needless to say, if you want me to test anything else here, please let me know.


Thanks again, Rogério Brito.

-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org