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-   -   Fix iwl6000 does not work in 2.6.31 kernel (http://www.linux-archive.org/ubuntu-kernel-team/295421-fix-iwl6000-does-not-work-2-6-31-kernel.html)

Ike Panhc 12-15-2009 02:44 AM

Fix iwl6000 does not work in 2.6.31 kernel
 
BugLink: http://bugs.launchpad.net/bugs/496496

User reports that the Ubuntu Karmic (2.6.31-14-generic) recognize the the PCI
id of iwl6000 series but can not scan for APs and not even to associate to AP.
We need two commits cherry-picked from mainline kernel to fix this problem.

Since we have only version 4 firmware for iwl6000 in the linux-firmware package.
We need to change the IWL6000_UCODE_API_MAX to v4 for driver to load version 4
firmware.

After fixing the firmware loading issue, the dmesg reports randomly command
timeout for RXON, Unifying RXON timing is necessary for iwl6000. One minor
conflict solved due to we still need sw_crypto in iwl-dev.h

Patches against linux-2.6.31.8 and Ubuntu-2.6.31-17.54 are listed below.

Ike Panhc (1):
iwlwifi: unify iwl_setup_rxon_timing

Wey-Yi Guy (1):
iwlwifi: change IWL6000_UCODE_API_MAX to v4

drivers/net/wireless/iwlwifi/iwl-3945.c | 1 +
drivers/net/wireless/iwlwifi/iwl-6000.c | 4 +-
drivers/net/wireless/iwlwifi/iwl-agn.c | 64 -----------------------
drivers/net/wireless/iwlwifi/iwl-commands.h | 20 +++++++-
drivers/net/wireless/iwlwifi/iwl-core.c | 59 +++++++++++++++++++++
drivers/net/wireless/iwlwifi/iwl-core.h | 1 +
drivers/net/wireless/iwlwifi/iwl-dev.h | 1 +
drivers/net/wireless/iwlwifi/iwl3945-base.c | 74 +--------------------------
8 files changed, 84 insertions(+), 140 deletions(-)


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Tim Gardner 12-15-2009 03:06 AM

Fix iwl6000 does not work in 2.6.31 kernel
 
Ike Panhc wrote:
> BugLink: http://bugs.launchpad.net/bugs/496496
>
> User reports that the Ubuntu Karmic (2.6.31-14-generic) recognize the the PCI
> id of iwl6000 series but can not scan for APs and not even to associate to AP.
> We need two commits cherry-picked from mainline kernel to fix this problem.
>
> Since we have only version 4 firmware for iwl6000 in the linux-firmware package.
> We need to change the IWL6000_UCODE_API_MAX to v4 for driver to load version 4
> firmware.
>
> After fixing the firmware loading issue, the dmesg reports randomly command
> timeout for RXON, Unifying RXON timing is necessary for iwl6000. One minor
> conflict solved due to we still need sw_crypto in iwl-dev.h
>
> Patches against linux-2.6.31.8 and Ubuntu-2.6.31-17.54 are listed below.
>
> Ike Panhc (1):
> iwlwifi: unify iwl_setup_rxon_timing
>
> Wey-Yi Guy (1):
> iwlwifi: change IWL6000_UCODE_API_MAX to v4
>
> drivers/net/wireless/iwlwifi/iwl-3945.c | 1 +
> drivers/net/wireless/iwlwifi/iwl-6000.c | 4 +-
> drivers/net/wireless/iwlwifi/iwl-agn.c | 64 -----------------------
> drivers/net/wireless/iwlwifi/iwl-commands.h | 20 +++++++-
> drivers/net/wireless/iwlwifi/iwl-core.c | 59 +++++++++++++++++++++
> drivers/net/wireless/iwlwifi/iwl-core.h | 1 +
> drivers/net/wireless/iwlwifi/iwl-dev.h | 1 +
> drivers/net/wireless/iwlwifi/iwl3945-base.c | 74 +--------------------------
> 8 files changed, 84 insertions(+), 140 deletions(-)
>
>

NAK - the solution for iwlwifi 6K users is to install
linux-backports-modules-karmic which is based on 2.6.32.

rtg

P.S. I think your email distribution is a bit wide. I'm pretty sure LKML
and stable.org aren't really interested in changes that we're making to
our kernel.

--
Tim Gardner tim.gardner@canonical.com

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Stefan Bader 12-15-2009 07:38 AM

Fix iwl6000 does not work in 2.6.31 kernel
 
Tim Gardner wrote:
> Ike Panhc wrote:
>> BugLink: http://bugs.launchpad.net/bugs/496496
>>
>> User reports that the Ubuntu Karmic (2.6.31-14-generic) recognize the the PCI
>> id of iwl6000 series but can not scan for APs and not even to associate to AP.
>> We need two commits cherry-picked from mainline kernel to fix this problem.
>>
>> Since we have only version 4 firmware for iwl6000 in the linux-firmware package.
>> We need to change the IWL6000_UCODE_API_MAX to v4 for driver to load version 4
>> firmware.
>>
>> After fixing the firmware loading issue, the dmesg reports randomly command
>> timeout for RXON, Unifying RXON timing is necessary for iwl6000. One minor
>> conflict solved due to we still need sw_crypto in iwl-dev.h
>>
>> Patches against linux-2.6.31.8 and Ubuntu-2.6.31-17.54 are listed below.
>>
>> Ike Panhc (1):
>> iwlwifi: unify iwl_setup_rxon_timing
>>
>> Wey-Yi Guy (1):
>> iwlwifi: change IWL6000_UCODE_API_MAX to v4
>>
>> drivers/net/wireless/iwlwifi/iwl-3945.c | 1 +
>> drivers/net/wireless/iwlwifi/iwl-6000.c | 4 +-
>> drivers/net/wireless/iwlwifi/iwl-agn.c | 64 -----------------------
>> drivers/net/wireless/iwlwifi/iwl-commands.h | 20 +++++++-
>> drivers/net/wireless/iwlwifi/iwl-core.c | 59 +++++++++++++++++++++
>> drivers/net/wireless/iwlwifi/iwl-core.h | 1 +
>> drivers/net/wireless/iwlwifi/iwl-dev.h | 1 +
>> drivers/net/wireless/iwlwifi/iwl3945-base.c | 74 +--------------------------
>> 8 files changed, 84 insertions(+), 140 deletions(-)
>>
>>
>
> NAK - the solution for iwlwifi 6K users is to install
> linux-backports-modules-karmic which is based on 2.6.32.
>
> rtg
>
> P.S. I think your email distribution is a bit wide. I'm pretty sure LKML
> and stable.org aren't really interested in changes that we're making to
> our kernel.

As it is a non-critical issue and our policy has moved to get things
into stable, and we told everyone that we won't take things that are
not that critical only through stable, I think the distribution list
is just fine. We will see whether this comes back in a bit of time
or not. :)

Ike, probably the thing to note here is, that we should not spend
much time looking into wireless issues that can be solved by installing
linux-backports-modules-wireless (that should be our first question to
ask in problem reports). That written, I must add that I meant wireless
problems in Karmic. If someone is reporting against Lucid that is
different.

-Stefan


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Stefan Bader 12-16-2009 10:39 PM

Fix iwl6000 does not work in 2.6.31 kernel
 
Ike Panhc wrote:
> BugLink: http://bugs.launchpad.net/bugs/496496
>
> User reports that the Ubuntu Karmic (2.6.31-14-generic) recognize the the PCI
> id of iwl6000 series but can not scan for APs and not even to associate to AP.
> We need two commits cherry-picked from mainline kernel to fix this problem.
>
> Since we have only version 4 firmware for iwl6000 in the linux-firmware package.
> We need to change the IWL6000_UCODE_API_MAX to v4 for driver to load version 4
> firmware.
>
> After fixing the firmware loading issue, the dmesg reports randomly command
> timeout for RXON, Unifying RXON timing is necessary for iwl6000. One minor
> conflict solved due to we still need sw_crypto in iwl-dev.h
>
> Patches against linux-2.6.31.8 and Ubuntu-2.6.31-17.54 are listed below.
>
> Ike Panhc (1):
> iwlwifi: unify iwl_setup_rxon_timing
>
> Wey-Yi Guy (1):
> iwlwifi: change IWL6000_UCODE_API_MAX to v4
>
> drivers/net/wireless/iwlwifi/iwl-3945.c | 1 +
> drivers/net/wireless/iwlwifi/iwl-6000.c | 4 +-
> drivers/net/wireless/iwlwifi/iwl-agn.c | 64 -----------------------
> drivers/net/wireless/iwlwifi/iwl-commands.h | 20 +++++++-
> drivers/net/wireless/iwlwifi/iwl-core.c | 59 +++++++++++++++++++++
> drivers/net/wireless/iwlwifi/iwl-core.h | 1 +
> drivers/net/wireless/iwlwifi/iwl-dev.h | 1 +
> drivers/net/wireless/iwlwifi/iwl3945-base.c | 74 +--------------------------
> 8 files changed, 84 insertions(+), 140 deletions(-)
>
>
Ok, both patches got NAKed upstream. Patch #2 was a functionally
equivalent change and the firmware should not be enabled by the
2.6.31 driver as other parts are missing.
So Ike, please update the bug report accordingly. If not yet done,
let them try backports-modules and otherwise let them know that
the changes required to enable this hw correctly are to big to be
acceptable as SRU for Karmic.

Thanks,
-Stefan

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