Message-ID: <4F982B0C.7050103@acm.org>
Date:	Wed, 25 Apr 2012 11:49:16 -0500
From:	Corey Minyard <tcminyard@...il.com>
To:	Nikola Ciprich <nikola.ciprich@...uxbox.cz>
CC:	Rob Herring <rob.herring@...xeda.com>,
	linux-kernel@...r.kernel.org, tcminyard@...il.com
Subject: Re: [BISECTED] ipmi_si not loading since 2.6.39

On 04/24/2012 11:21 PM, Nikola Ciprich wrote:
>> In the previous kernel it was coming up at address 0xca2, not 0xca8.
>> Can you try that?
> hmm, haven't noticed that!
>
> here's the try:
> [root@...x4 ~]# modprobe ipmi_si type=kcs addrs=0xca2 regspacings=1 regsizes=1 regshifts=0 irqs=0 slave_addrs=0x0
>
> dmesg:
> [33743.684605] IPMI System Interface driver.
> [33743.684607] ipmi_si: probing via hardcoded address
> [33743.684608] ipmi_si: Adding hardcoded-specified kcs state machine
> [33743.684610] ipmi_si: Trying hardcoded-specified kcs state machine at mem address 0xca2, slave address 0x0, irq 0
> [33743.684612] ipmi_si: Could not set up I/O space

That means that something else is using that I/O space.  You can look in 
/proc/ioports to find what.

-corey

> cheers!
> n.
>
>
>> -corey
>>
>>
>>> n.
>>>
>>>
>>> On Tue, Apr 24, 2012 at 03:55:54PM -0500, Rob Herring wrote:
>>>> On 04/24/2012 03:37 PM, Nikola Ciprich wrote:
>>>>> Hi Corey,
>>>>>
>>>>> I have this problem with 3.4-rc4 as well and it already contains
>>>>> b1608d69cb804e414d0887140ba08a9398e4e638, so this doesn't fix this problem..
>>>>>
>>>> Can you send the kernel log for the failing case.
>>>>
>>>> Rob
>>>>
>>>>> BR
>>>>>
>>>>> nik
>>>>>
>>>>>
>>>>> On Tue, Apr 24, 2012 at 08:41:32AM -0500, Corey Minyard wrote:
>>>>>> Looks like you might need change b1608d69cb804e414d0887140ba08a9398e4e638
>>>>>>
>>>>>> -corey
>>>>>>
>>>>>> On 04/23/2012 03:09 PM, Rob Herring wrote:
>>>>>>> On 04/21/2012 02:20 AM, Nikola Ciprich wrote:
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> here's further information Rob and Corey requested:
>>>>>>>>
>>>>>>>> on working system:
>>>>>>>>
>>>>>>>> [root@...x4 ~]# cat /proc/ipmi/0/params
>>>>>>>> kcs,i/o,0xca2,rsp=1,rsi=1,rsh=0,irq=0,ipmb=0
>>>>>>>>
>>>>>>>> dmesg snippet:
>>>>>>>>
>>>>>>>> [   41.759319] ipmi message handler version 39.2
>>>>>>>> [   41.760690] ipmi device interface
>>>>>>>> [   42.765334] IPMI System Interface driver.
>>>>>>>> [   42.765336] ipmi_si: probing via hardcoded address
>>>>>>>> [   42.765337] ipmi_si: Adding hardcoded-specified kcs state machine
>>>>>>>> [   42.765340] ipmi_si: Trying hardcoded-specified kcs state machine at i/o address 0xca8, slave address 0x0, irq 0
>>>>>>>> [   42.765344] ipmi_si: Interface detection failed
>>>>>>>> [   42.770823] ipmi_si: probing via SMBIOS
>>>>>>>> [   42.770834] ipmi_si: SMBIOS: io 0xca2 regsize 1 spacing 1 irq 0
>>>>>>>> [   42.770836] ipmi_si: Adding SMBIOS-specified kcs state machine
>>>>>>>> [   42.770838] ipmi_si: probing via SPMI
>>>>>>>> [   42.770840] ipmi_si: SPMI: io 0xe4 regsize 1 spacing 1 irq 0
>>>>>>>> [   42.770841] ipmi_si: Adding SPMI-specified kcs state machine
>>>>>>>> [   42.770843] ipmi_si: Trying SMBIOS-specified kcs state machine at i/o address 0xca2, slave address 0x0, irq 0
>>>>>>>> [   42.798137] ipmi_si ipmi_si.0: Error clearing flags: cc
>>>>>>>> [   42.801011] ipmi_si ipmi_si.0: Found new BMC (man_id: 0x002a7c, prod_id: 0x0624, dev_id: 0x20)
>>>>>>>> [   42.801068] ipmi_si ipmi_si.0: IPMI kcs interface initialized
>>>>>>>>
>>>>>>>>
>>>>>>>> dmidecode:
>>>>>>>>
>>>>>>>> IPMI Device Information
>>>>>>>>            Interface Type: KCS (Keyboard Control Style)
>>>>>>>>            Specification Version: 2.0
>>>>>>>>            I2C Slave Address: 0x00
>>>>>>>>            NV Storage Device: Not Present
>>>>>>>>            Base Address: 0x0000000000000CA2 (I/O)
>>>>>>>>            Register Spacing: Successive Byte Boundaries
>>>>>>>>
>>>>>>>> Base Board Information
>>>>>>>>            Manufacturer: Supermicro
>>>>>>>>            Product Name: X9SCL/X9SCM
>>>>>>>>
>>>>>>>> (but we're experiencing this on various supermicro bords, ie X8DTL)
>>>>>>>>
>>>>>>>> Tried setting parameters by hand didn't help:
>>>>>>>>
>>>>>>>> modprobe ipmi_si type=kcs addrs=0xca8 regspacings=1 regsizes=1 regshifts=0 irqs=0 slave_addrs=0x0
>>>>>>>>
>>>>>>>> (not sure whether I got them correct though, and values mostly seem to me to be defaults anyways..)
>>>>>>>>
>>>>>>> It is working for me on a SuperMicro system with ubuntu oneiric (3.0
>>>>>>> based).
>>>>>>>
>>>>>>> [597160.259728] ipmi_si: probing via SMBIOS
>>>>>>> [597160.259730] ipmi_si: SMBIOS: io 0xca2 regsize 1 spacing 1 irq 0
>>>>>>> [597160.259731] ipmi_si: Adding SMBIOS-specified kcs state machine
>>>>>>> [597160.259734] ipmi_si: probing via SPMI
>>>>>>> [597160.259735] ipmi_si: SPMI: io 0xe4 regsize 1 spacing 1 irq 0
>>>>>>> [597160.259737] ipmi_si: Adding SPMI-specified kcs state machine
>>>>>>> [597160.259739] ipmi_si: Trying SMBIOS-specified kcs state machine at
>>>>>>> i/o address 0xca2, slave address 0x0, irq 0
>>>>>>> [597160.378757] ipmi_si: Invalid return from get global enables command,
>>>>>>> cannot enable the event buffer.
>>>>>>> [597160.382032] ipmi_si ipmi_si.0: Found new BMC (man_id: 0x00b980,
>>>>>>> prod_id: 0x0624, dev_id: 0x20)
>>>>>>> [597160.382040] ipmi_si ipmi_si.0: IPMI kcs interface initialized
>>>>>>> [597179.973960] ipmi device interface
>>>>>>> localadm@...dy1:~$ ipmitool bmc info
>>>>>>> Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No
>>>>>>> such file or directory
>>>>>>> Get Device ID command failed
>>>>>>> localadm@...dy1:~$ sudo ipmitool bmc info
>>>>>>> Device ID                 : 32
>>>>>>> Device Revision           : 1
>>>>>>> Firmware Revision         : 1.1
>>>>>>> IPMI Version              : 2.0
>>>>>>> Manufacturer ID           : 47488
>>>>>>> Manufacturer Name         : Unknown (0xB980)
>>>>>>> Product ID                : 1572 (0x0624)
>>>>>>> Product Name              : Unknown (0x624)
>>>>>>> Device Available          : yes
>>>>>>> Provides Device SDRs      : no
>>>>>>> Additional Device Support :
>>>>>>>        Sensor Device
>>>>>>>        SDR Repository Device
>>>>>>>        SEL Device
>>>>>>>        FRU Inventory Device
>>>>>>>        IPMB Event Receiver
>>>>>>>        IPMB Event Generator
>>>>>>>        Chassis Device
>>>>>>> Aux Firmware Rev Info     :
>>>>>>>        0x06
>>>>>>>        0x00
>>>>>>>        0x00
>>>>>>>        0x00
>>>>>>> localadm@...dy1:~$ uname -a
>>>>>>> Linux sandy1 3.0.0-16-generic #28-Ubuntu SMP Fri Jan 27 17:44:39 UTC
>>>>>>> 2012 x86_64 x86_64 x86_64 GNU/Linux
>>>>>>>
>>>>>>> Rob
>>>>>>>
>>>>>>>> nik
>>>>>>>>
>>>>>>>>
>>>>>>>> On Sat, Apr 21, 2012 at 12:38:33AM +0200, Nikola Ciprich wrote:
>>>>>>>>> Hello,
>>>>>>>>>
>>>>>>>>> I was trying to find out why IPMI stopped working on new kernels. Since 2.6.39
>>>>>>>>> module loading ends with following message:
>>>>>>>>>
>>>>>>>>>     ipmi_si: Interface detection failed
>>>>>>>>>
>>>>>>>>> Then ipmitool is unable to control IPMI device.
>>>>>>>>>
>>>>>>>>> Works for 2.6.38, doesn't work for 2.6.39, 3.0.28, 3.4-rc1.
>>>>>>>>>
>>>>>>>>> I got this bisected to following commit:
>>>>>>>>>
>>>>>>>>> commit a1e9c9dd3383e6a1a762464ad604b1081774dbda
>>>>>>>>> Author: Rob Herring<rob.herring@...xeda.com>
>>>>>>>>> Date:   Wed Feb 23 15:37:59 2011 -0600
>>>>>>>>>
>>>>>>>>>        ipmi: convert OF driver to platform driver
>>>>>>>>>
>>>>>>>>>        of_bus is deprecated in favor of the plain platform bus. This patch
>>>>>>>>>        merges the ipmi OF driver with the existing platform driver.
>>>>>>>>>
>>>>>>>>>        CONFIG_PPC_OF occurrances are removed or replaced with CONFIG_OF.
>>>>>>>>>
>>>>>>>>>        Compile tested with and without CONFIG_OF. Tested OF probe and
>>>>>>>>>        default probe cases.
>>>>>>>>>
>>>>>>>>>        Signed-off-by: Rob Herring<rob.herring@...xeda.com>
>>>>>>>>>        Signed-off-by: Grant Likely<grant.likely@...retlab.ca>
>>>>>>>>>
>>>>>>>>> I wonder whether this is a bug, or I'm doing something wrong?
>>>>>>>>>
>>>>>>>>> Thanks in advance!
>>>>>>>>>
>>>>>>>>> with best regards
>>>>>>>>>
>>>>>>>>> nik
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> -- 
>>>>>>>>> -------------------------------------
>>>>>>>>> Ing. Nikola CIPRICH
>>>>>>>>> LinuxBox.cz, s.r.o.
>>>>>>>>> 28. rijna 168, 709 01 Ostrava
>>>>>>>>>
>>>>>>>>> tel.:   +420 596 603 142
>>>>>>>>> fax:    +420 596 621 273
>>>>>>>>> mobil:  +420 777 093 799
>>>>>>>>>
>>>>>>>>> www.linuxbox.cz
>>>>>>>>>
>>>>>>>>> mobil servis: +420 737 238 656
>>>>>>>>> email servis: servis@...uxbox.cz
>>>>>>>>> -------------------------------------
>>>>>>> --
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