[PATCH 0/5] net: Port NFS to LWIP

[Tom Rini]

On Thu, Dec 11, 2025 at 09:07:59AM +0000, Andrew Goodbody wrote:
> On 10/12/2025 12:55, Heinrich Schuchardt wrote:
> > On 12/8/25 13:52, Andrew Goodbody wrote:
> > > This series ports the existing NFS code so that it can be used with both
> > > the legacy network code and also with LWIP.
> > > Firstly some legacy network code, mostly variables, is moved into common
> > > files so that it is accessible to LWIP.
> > > Secondly the NFS code is refactored so that the parts that are not
> > > specific to the network code can be shared with both network
> > > implementations.
> > > Finally the LWIP specific parts needed to interface the NFS shared code
> > > to that network stack are added and enabled.
> > > 
> > > Signed-off-by: Andrew Goodbody <andrew.goodbody at linaro.org>
> > > ---
> > > Andrew Goodbody (5):
> > >        net: move net_state to net-common
> > >        net: Move some variables to net-common files
> > >        net: nfs: Add licence header
> > >        net: nfs: Move most NFS code to common files
> > >        net: lwip: nfs: Port the NFS code to work with LWIP
> > > 
> > >   cmd/Kconfig          |  28 +-
> > >   cmd/lwip/Makefile    |   1 +
> > >   cmd/lwip/nfs.c       |  11 +
> > >   include/net-common.h |  38 ++-
> > >   include/net-legacy.h |  26 --
> > >   include/net-lwip.h   |   1 +
> > >   net/Makefile         |   1 +
> > >   net/lwip/Makefile    |   1 +
> > >   net/lwip/net-lwip.c  |   5 -
> > >   net/lwip/nfs.c       | 282 +++++++++++++++++
> > >   net/net-common.c     |  21 ++
> > >   net/net.c            |  23 --
> > >   net/nfs-common.c     | 863
> > > +++++++++++++++++++++++++++++++++++++++++ ++++++++++
> > >   net/nfs-common.h     | 123 ++++++++
> > >   net/nfs.c            | 849
> > > +-------------------------------------------------
> > >   net/nfs.h            |  59 ----
> > >   16 files changed, 1368 insertions(+), 964 deletions(-)
> > > ---
> > > base-commit: 59f9fcc1f514762674ac07c13c2a85f7aace7250
> > > change-id: 20251029-lwip_nfs-5385efca71bc
> > > 
> > > Best regards,
> > 
> > Thank you for looking into the LWIP port.
> > 
> > We lack an NFS server in our Gitlab CI to run the NFS test.
> > 
> > For HTTP we are running
> > python3 -m http.server 80 --directory "${UBOOT_TRAVIS_BUILD_DIR}"
> > in .gitlab-ci.yml.
> > 
> > We should do something similar for NFS.
> > 
> > There is a userspace NFS server available
> > at https://github.com/unfs3/unfs3.
> > 
> > This worked on my workstation:
> > 
> > cat > exports << EOF
> > /home/ubuntu
> > EOF
> > ./unfsd -e `pwd`/exports  -u  -n 4096 -m 4096
> > sudo mount -t nfs \
> > -o port=4096,mountport=4096,mountvers=3,nolock \
> > localhost:/home/ubuntu /mnt
> > 
> > Now in /mnt I could see the /home/ubuntu file-system.
> 
> Tom, is this something that can be added to the build containers?

Yes, that sounds reasonable.

-- 
Tom
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