linux-kernel - Re: [PATCH 0/2] Migrate QRTR Nameservice to Kernel

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Message-ID: <34daecbeb05d31e30ef11574f873553290c29d16.camel@redhat.com>
Date:   Thu, 13 Feb 2020 09:22:39 -0600
From:   Dan Williams <dcbw@...hat.com>
To:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        davem@...emloft.net, kuba@...nel.org
Cc:     bjorn.andersson@...aro.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] Migrate QRTR Nameservice to Kernel

On Thu, 2020-02-13 at 14:44 +0530, Manivannan Sadhasivam wrote:
> Hello,
> 
> This patchset migrates the Qualcomm IPC Router (QRTR) Nameservice
> from userspace
> to kernel under net/qrtr.
> 
> The userspace implementation of it can be found here:
> https://github.com/andersson/qrtr/blob/master/src/ns.c
> 
> This change is required for enabling the WiFi functionality of some
> Qualcomm
> WLAN devices using ATH11K without any dependency on a userspace
> daemon.

Just out of curiousity, what's the motivation for not requiring a
userspace daemon? What are the downsides of the current userspace
daemon implementation?

Dan

> The original userspace code is published under BSD3 license. For
> migrating it
> to Linux kernel, I have adapted Dual BSD/GPL license.
> 
> This patchset has been verified on Dragonboard410c and Intel NUC with
> QCA6390
> WLAN device.
> 
> Thanks,
> Mani
> 
> Manivannan Sadhasivam (2):
>   net: qrtr: Migrate nameservice to kernel from userspace
>   net: qrtr: Fix the local node ID as 1
> 
>  net/qrtr/Makefile |   2 +-
>  net/qrtr/ns.c     | 730
> ++++++++++++++++++++++++++++++++++++++++++++++
>  net/qrtr/qrtr.c   |  51 +---
>  net/qrtr/qrtr.h   |   4 +
>  4 files changed, 746 insertions(+), 41 deletions(-)
>  create mode 100644 net/qrtr/ns.c
>