linux-kernel - RE: [EXT] Re: [PATCH v13 net-next 00/15] net: mvpp2: Add TX Flow Control support

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Date:   Fri, 12 Feb 2021 08:54:31 +0000
From:   Stefan Chulski <stefanc@...vell.com>
To:     "patchwork-bot+netdevbpf@...nel.org" 
        <patchwork-bot+netdevbpf@...nel.org>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "thomas.petazzoni@...tlin.com" <thomas.petazzoni@...tlin.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        Nadav Haklai <nadavh@...vell.com>,
        Yan Markman <ymarkman@...vell.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "linux@...linux.org.uk" <linux@...linux.org.uk>,
        "mw@...ihalf.com" <mw@...ihalf.com>,
        "andrew@...n.ch" <andrew@...n.ch>,
        "rmk+kernel@...linux.org.uk" <rmk+kernel@...linux.org.uk>,
        "atenart@...nel.org" <atenart@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "sebastian.hesselbarth@...il.com" <sebastian.hesselbarth@...il.com>,
        "gregory.clement@...tlin.com" <gregory.clement@...tlin.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: RE: [EXT] Re: [PATCH v13 net-next 00/15] net: mvpp2: Add TX Flow
 Control support

> ----------------------------------------------------------------------
> Hello:
> 
> This series was applied to netdev/net-next.git (refs/heads/master):
> 
> On Thu, 11 Feb 2021 12:48:47 +0200 you wrote:
> > From: Stefan Chulski <stefanc@...vell.com>
> >
> > Armada hardware has a pause generation mechanism in GOP (MAC).
> > The GOP generate flow control frames based on an indication programmed
> in Ports Control 0 Register. There is a bit per port.
> > However assertion of the PortX Pause bits in the ports control 0 register
> only sends a one time pause.
> > To complement the function the GOP has a mechanism to periodically send
> pause control messages based on periodic counters.
> > This mechanism ensures that the pause is effective as long as the
> Appropriate PortX Pause is asserted.
> >
> > [...]
> 
> Here is the summary with links:
>   - [v13,net-next,01/15] doc: marvell: add CM3 address space and PPv2.3
> description

Next week I would prepare small patch series to address Russell King comments.

Thanks,
Stefan.