linux-kernel - Re: [RFC PATCH net-next 0/2] Add support for Frame preemption (IEEE

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Message-ID: <20221103225124.h6nrj2qnypltgqbr@skbuf>
Date:   Fri, 4 Nov 2022 00:51:24 +0200
From:   Vladimir Oltean <olteanv@...il.com>
To:     Pranavi Somisetty <pranavi.somisetty@....com>
Cc:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, git@....com, harini.katakam@....com,
        radhey.shyam.pandey@....com, michal.simek@....com,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [RFC PATCH net-next 0/2] Add support for Frame preemption (IEEE

Hi Pranavi,

On Thu, Nov 03, 2022 at 05:33:46AM -0600, Pranavi Somisetty wrote:
> Frame Preemption is one of the core standards of TSN. It enables
> low latency trasmission of time-critical frames by allowing them to
> interrupt the transmission of other non time-critical traffic. Frame
> preemption is only active when the link partner is also capable of it.
> This negotiation is done using LLDP as specified by the standard. Open
> source lldp utilities and other applications, can make use of
> the ioctls and the header being here, to query preemption capabilities
> and configure various parameters.
> 
> Pranavi Somisetty (2):
>   include: uapi: Add new ioctl definitions to support Frame Preemption
>   include: uapi: Add Frame preemption parameters
> 
>  include/uapi/linux/preemption_8023br.h | 30 ++++++++++++++++++++++++++
>  include/uapi/linux/sockios.h           |  6 ++++++
>  net/core/dev_ioctl.c                   |  6 +++++-
>  3 files changed, 41 insertions(+), 1 deletion(-)
>  create mode 100644 include/uapi/linux/preemption_8023br.h
> 
> -- 
> 2.36.1
> 

Have you seen:
https://patchwork.kernel.org/project/netdevbpf/cover/20220816222920.1952936-1-vladimir.oltean@nxp.com/