[dpdk-dev] [RFC PATCH v2] build: kni cross-compilation support

[Thomas Monjalon]

05/02/2021 10:38, Bruce Richardson:
> On Fri, Feb 05, 2021 at 09:26:05AM +0000, Juraj Linkeš wrote:
> > From: Bruce Richardson <bruce.richardson at intel.com>
> > > The block for cross-compiling is fairly large and complex, so I'm wondering how
> > > we can simplify things a bit. If we had multiple kernel modules I'd suggest
> > > splitting thing up into a native and cross-build subdirectories to get the build
> > > info, but that seems like overkill here.
> > 
> > This configuration would be the same for all kernel modules (right?), so I'm not sure how the number of kernel modules is relevant here.
> > If we split it, what would the dir structure look like? Something like this?
> > kernel/linux/
> > ├── aarch64
> > ├── native
> > ├── kni
> > ├── <other_mods>
> > 
> 
> Yep, that would be the structure - though perhaps with "cross" rather than
> "aarch64" being the alternative to "native".  The reason I felt that the
> number of kmods was relevant is that it would be really weird to have 2
> subdirectories for infrastructure for a single directory containing one
> module - a 200% percent overhead ratio. :-) Therefore, I thinking keeping
> it all in one file is best, but we'll see after the next revision how it
> looks.

Going forward, we should not have any Linux kernel module in this DPDK repository.
We must encourage upstream developments.
That's why I am against adding more directories in kernel/linux/.
KNI is still there (could move later), but please handle it in kni/ directory.