Re: ZeroMQ

[Janne Rosberg]

I did the libzmq and libnng porting (WIP) year ago to nuttx apps Never 
finished it to Nuttx PR

It's available here for reference if someone is interested.
offcode-oy/nuttx-apps at wip/libzmq_and_nng 
(github.com)


--Janne




From: Marco Casaroli 
Sent: Monday, 6 February 2023 10.55
To: dev@nuttx.apache.org 
Subject: Re: ZeroMQ

I am doing this.

Will share in a couple of weeks.

On Mon, 6 Feb 2023 at 09:41, Sebastien Lorquet  wrote:

> Hi,
>
> this is very interesting, thanks for sharing this.
>
> Did anyone already integrate nng in NuttX ?
>
> Sebastien
>
> Le 04/02/2023 à 03:02, David S. Alessio a écrit :
> > All,
> >
> > ZeroMQ is/was quite popular, but its author redesigned it, created a
> much cleaner implementation called “nanomsg”,
> >   ref: https://nanomsg.org/documentation-zeromq.html <
> https://nanomsg.org/documentation-zeromq.html>
> >   ref: https://nanomsg.org/index.html <
> https://nanomsg.org/index.html>
> >
> > And then he rewrote it again:
> >   ref: https://nng.nanomsg.org/RATIONALE.html <
> https://nng.nanomsg.org/RATIONALE.html>
> > and called it nng:
> >   ref: https://nng.nanomsg.org 
> >
> > So, in short, if one is interested in ZeroMQ and NuttX, I’d suggest
> nanomsg would be a much more efficient replacement; and finally the best
> choice of the three IMHO would be nng for an embedded system (Cortex-M3/4
> class) system.
> >
> > Just my $0.025, I hope it’s helpful.
> >
> > Cheers,
> > -david
> >
> >
> >
> >> On Feb 3, 2023, at 2:24 AM, Xiang Xiao 
> wrote:
> >>
> >> On Fri, Feb 3, 2023 at 4:31 PM Marco Casaroli
> >>  marco.casar...@midokura.com.invalid>> wrote:
> >>
> >>> Hello,
> >>>
> >>> I've been experimenting to build ZeroMQ work with NuttX and I wanted to
> >>> share my results so far.
> >>>
> >>> TLDR: it works
> >>>
> >>> Please, understand that I am very new to NuttX so please tell me with
> any
> >>> conceptual errors I might be facing!
> >>>
> >>> https://github.com/casaroli/incubator-nuttx/tree/zeromq
> >>>
> >>> I think we need to be able to use this library both from kernel code
> and
> >>> from applications, so I guessed this would fit along libxx and libdsp,
> etc.
> >>>
> >>>
> >> Kernel code needs to call some special API(e.g. kmm_malloc, psock_send
> and
> >> file_open), I amn't sure whether is it easy to adjust ZeroMQ for this
> type
> >> of change.
> >>
> >>
> >>> So I basically copied many stuff from those directories into
> libs/libzmq
> >>>
> >>> Still needs a lot of work, so next steps are to find a way to run the
> >>> tests, then to make platform.hpp defines use nuttx/config.h, add czmq
> >>> (higher level interface).
> >>>
> >>> However, in the current state, I could get IPC through Unix Domain
> Sockets
> >>> and TCP. inproc also works fine.
> >>>
> >>> I wrote some simple examples (not on the repo) and they work.
> >>>
> >>> I want to know if anyone else is interested in helping with this (make
> >>> ZeroMQ/czmq, nng, etc. work).
> >>>
> >>>
> >> Yes, it's definitely good to support more 3rd party general libraries.
> >>
> >>
> >>> Thank you.
> >
>

Re: (Late) heads-up for new risc-v soc and board

[Janne Rosberg]

Hi Alan,

Yes, it has FPGA “build-in” so you can do very nice processing with that.
Also 4+1 cores running on 600+Mhz so it’s almost a supercomputer. 
Let’s see what we can squeeze out of it.
Later on hoping to get SMP config working….

Janne

From: Alan Carvalho de Assis 
Date: Monday, 24. May 2021 at 22.13
To: dev@nuttx.apache.org 
Subject: Re: (Late) heads-up for new risc-v soc and board
Hi Janne,

Very nice! Kudos!!!

So, this SoC has FPGA integrated on it?

BR,

Alan

On 5/24/21, Janne Rosberg  wrote:
> Hi all devs,
>
> First of all, it’s nice to be back on (public) NuttX development. It’s been
> a while since last time. 
>
> We are doing porting for MicroChip PolarFire Risc-V SoC and Icicle
> evaluation board.
> Basic things already works (uart and gpios) so we can boot to nsh.
> First PR #3770 is already “pending”
>
> If there is anybody who is working on this SoC please let us know so that we
> can combine our work forces…
> But anyway, we continue with peripheral drivers; I2C already done others to
> follow.
>
> This work is was made possible by TII. https://github.com/tiiuae so all PR’s
> are coming from there.
>
> Br,
> Janne
>
>

(Late) heads-up for new risc-v soc and board

[Janne Rosberg]

Hi all devs,

First of all, it’s nice to be back on (public) NuttX development. It’s been a 
while since last time. 

We are doing porting for MicroChip PolarFire Risc-V SoC and Icicle evaluation 
board.
Basic things already works (uart and gpios) so we can boot to nsh.
First PR #3770 is already “pending”

If there is anybody who is working on this SoC please let us know so that we 
can combine our work forces…
But anyway, we continue with peripheral drivers; I2C already done others to 
follow.

This work is was made possible by TII. https://github.com/tiiuae so all PR’s 
are coming from there.

Br,
Janne