netdev - Re: [PATCH net-next 0/8] mlxsw: Enable/disable PTP shapers

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Date:   Fri, 05 Jul 2019 15:29:20 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     idosch@...sch.org
Cc:     netdev@...r.kernel.org, richardcochran@...il.com,
        jiri@...lanox.com, petrm@...lanox.com, shalomt@...lanox.com,
        mlxsw@...lanox.com, idosch@...lanox.com
Subject: Re: [PATCH net-next 0/8] mlxsw: Enable/disable PTP shapers

From: Ido Schimmel <idosch@...sch.org>
Date: Thu,  4 Jul 2019 10:07:32 +0300

> From: Ido Schimmel <idosch@...lanox.com>
> 
> Shalom says:
> 
> In order to get more accurate hardware time stamping in Spectrum-1, the
> driver needs to apply a shaper on the port for speeds lower than 40Gbps.
> This shaper is called a PTP shaper and it is applied on hierarchy 0,
> which is the port hierarchy. This shaper may affect the shaper rates of
> all hierarchies.
> 
> This patchset adds the ability to enable or disable the PTP shaper on
> the port in two scenarios:
>  1. When the user wants to enable/disable the hardware time stamping
>  2. When the port is brought up or down (including port speed change)
> 
> Patch #1 adds the QEEC.ptps field that is used for enabling or disabling
> the PTP shaper on a port.
> 
> Patch #2 adds a note about disabling the PTP shaper when calling to
> mlxsw_sp_port_ets_maxrate_set().
> 
> Patch #3 adds the QPSC register that is responsible for configuring the
> PTP shaper parameters per speed.
> 
> Patch #4 sets the PTP shaper parameters during the ptp_init().
> 
> Patch #5 adds new operation for getting the port's speed.
> 
> Patch #6 enables/disables the PTP shaper when turning on or off the
> hardware time stamping.
> 
> Patch #7 enables/disables the PTP shaper when the port's status has
> changed (including port speed change).
> 
> Patch #8 applies the PTP shaper enable/disable logic by filling the PTP
> shaper parameters array.

Series applied, thanks.