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

05/02/2021 10:38, Bruce Richardson:

On Fri, Feb 05, 2021 at 09:26:05AM +0000, Juraj Linkeš wrote:

quoted

From: Bruce Richardson <redacted>

quoted

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.