Wiki section "Building Only Kernel Modules" incomplete
Eric Sandeen
sandeen at redhat.com
Tue Dec 23 16:41:59 UTC 2008
Philip A. Prindeville wrote:
> [ Resending per Jarod... ]
>
> Ok, so the below thread has changed tracks... I started looking at:
>
> http://fedoraproject.org/wiki/Docs/CustomKernel?highlight=#Building_Only_Kernel_Modules
>
>
> And saw, "*This section needs to be updated and fleshed out". Yes,
> indeed. I'm trying to go by this section, but it's a little thin.
>
> Who owns it? I'd like to work with them on figuring out what needs to
> be added to make it useful.
I know my way around kbuild pretty well too, if I can help let me know,
or if you have specific problems or examples I'd be willing to take a look.
See also Documentation/kbuild/ in the kernel tree, it's quite good.
Looking at the thread below, for cflags (including include paths) try
this section:
--- 3.7 Compilation flags
As for subdirs, and out-of-tree module builds, last I checked it really
all wants to be driven from one Makefile at the top (of the module dir).
-Eric
> Thanks,
>
> -Philip
>
> ==== Original thread below ====
>
> *Philip A. Prindeville wrote:
>> Jerry Amundson wrote:
>>> On 12/21/08, Jerry Amundson <jamundso at gmail.com> wrote:
>>>
>>>> On 12/21/08, Philip A. Prindeville <philipp_subx at redfish-solutions.com>
>>>> wrote:
>>>>
>>>>> I was going to build an RPM for the modules for the Promise FastTrak
>>>>> TX4650 PCI-e RAID controller for FC9.
>>>>>
>>>>> Their support website claims it's supported "in-box" in FC9, but it
>>>>> turns out that's not true:
>>>>>
>>>>> $ lspci -v -s 02:00.0
>>>>> 02:00.0 RAID bus controller: Promise Technology, Inc. Unknown
>>>>> device 3f20
>>>>> Subsystem: Promise Technology, Inc. Unknown device 3f22
>>>>> Flags: bus master, fast devsel, latency 0, IRQ 10
>>>>> I/O ports at dc00 [size=128]
>>>>> I/O ports at d800 [size=256]
>>>>> Memory at fbeff000 (32-bit, non-prefetchable) [size=4K]
>>>>> Memory at fbec0000 (32-bit, non-prefetchable) [size=128K]
>>>>> Memory at fbefc000 (32-bit, non-prefetchable) [size=8K]
>>>>> Expansion ROM at fbe80000 [disabled] [size=256K]
>>>>> Capabilities: [50] Power Management version 2
>>>>> Capabilities: [70] Express Legacy Endpoint, MSI 00
>>>>> Capabilities: [94] SATA HBA <?>
>>>>> Capabilities: [100] Advanced Error Reporting <?>
>>>>> Capabilities: [140] Virtual Channel <?>
>>>>> Capabilities: [160] Device Serial Number 01-00-00-00-02-00-00-00
>>>>> Capabilities: [170] Power Budgeting <?>
>>>>>
>>>>>
>>>>> so... I downloaded their drivers from their website:
>>>>>
>>>>> http://www.promise.com/upload/Support/Driver/FT%20TX4650-2650%20Linux%20Kernl%202.6%20PSC%20v1.1.0.12.tgz
>>>>>
>>>>>
>>>>> (Yes, I realize it will taint my kernel... and it doesn't include
>>>>> all of
>>>>> the
>>>>> source.)
>>>>>
>>>>> I tried to build it, but getting into the kernel directory:
>>>>>
>>>> Don't start there. Start with the README of the source you downloaded.
>>>>
>>> And it looks like you'll some code fixing to get it to compile...
>>> http://www.colinmackenzie.net/index.php?option=com_content&view=article&id=12:promise-satasas-driver-update-tx4650tx2650&catid=8:rotator&Itemid=7
>>>
>>>
>>> jerry
>>>
>>>
>> I saw the more recent postings...
>>
>> My understanding is that the TX4650 has the RAID-5 XOR ASICs to
>> accelerate the reed-solomon code calculations... hence my wanting to
>> use this driver.
>>
>> I picked up the patches that you pointed me at (including "The
>> Czar's", which was necessary to compile on 2.6.25 and subsequent)...
>>
>> Then I looked at:
>>
>> http://fedoraproject.org/wiki/Docs/CustomKernel?highlight=#Building_Only_Kernel_Modules
>>
>>
>>
>> but had some questions about that.
>>
>> The example is a little thin. It doesn't explain what to do if you
>> need to pass in extra C flags, extra include directories, or if your
>> driver has several subdirectories that need to be compiled and linked
>> together (or if it is a partial-source release, and has canned object
>> files that also need to be linked in).
>>
>> Anyone have a real-life example that they can point me at that does this?
>>
>> Thanks,
>>
>> -Philip
>>
>>
>
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