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

Hi Dan,

On Thu, Feb 13, 2020 at 09:22:39AM -0600, Dan Williams wrote:

On Thu, 2020-02-13 at 14:44 +0530, Manivannan Sadhasivam wrote:

quoted

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?

The primary motivation is to eliminate the need for installing and starting
a userspace tool for the basic WiFi usage. This will be critical for the
Qualcomm WLAN devices deployed in x86 laptops.

Also, there are some plans to implement QRTR link negotiation based on this
in future.

Thanks,
Mani
 

Dan

quoted

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