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Wiki section "Building Only Kernel Modules" incomplete (was: FC9, "missing syscalls" kernel target, and Promise Fasttrak TX4650 controller)



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.

Thanks,

-Philip

==== Original thread below ====

*Philip A. Prindeville wrote:
Jerry Amundson wrote:
On 12/21/08, Jerry Amundson <jamundso gmail com> wrote:
On 12/21/08, Philip A. Prindeville <philipp_subx 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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