netdev - Re: [PATCH net-next v3 4/4] net: lan966x: Add ptp trap rules

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Date:   Thu, 5 Jan 2023 22:55:12 +0100
From:   Horatiu Vultur <horatiu.vultur@...rochip.com>
To:     Michael Walle <michael@...le.cc>
CC:     <Steen.Hegelund@...rochip.com>, <UNGLinuxDriver@...rochip.com>,
        <daniel.machon@...rochip.com>, <davem@...emloft.net>,
        <edumazet@...gle.com>, <kuba@...nel.org>,
        <lars.povlsen@...rochip.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
        <olteanv@...il.com>, <pabeni@...hat.com>,
        <richardcochran@...il.com>
Subject: Re: [PATCH net-next v3 4/4] net: lan966x: Add ptp trap rules

The 01/05/2023 16:09, Michael Walle wrote:
> 
> Hi,

Hi Michael,

> 
> > > Also, if the answer to my question above is yes, and ptp should
> > > have worked on eth0 before, this is a regression then.
> > 
> > OK, I can see your point.
> > With the following diff, you should see the same behaviour as before:
> > ---
> > diff --git
> > a/drivers/net/ethernet/microchip/lan966x/lan966x_vcap_impl.c
> > b/drivers/net/ethernet/microchip/lan966x/lan966x_vcap_impl.c
> > index 904f5a3f636d3..538f4b76cf97a 100644
> > --- a/drivers/net/ethernet/microchip/lan966x/lan966x_vcap_impl.c
> > +++ b/drivers/net/ethernet/microchip/lan966x/lan966x_vcap_impl.c
> > @@ -91,8 +91,6 @@ lan966x_vcap_is2_get_port_keysets(struct net_device
> > *dev, int lookup,
> > 
> >         /* Check if the port keyset selection is enabled */
> >         val = lan_rd(lan966x, ANA_VCAP_S2_CFG(port->chip_port));
> > -       if (!ANA_VCAP_S2_CFG_ENA_GET(val))
> > -               return -ENOENT;
> > 
> >         /* Collect all keysets for the port in a list */
> >         if (l3_proto == ETH_P_ALL)
> 
> Any news on this? Apart from the patches which would change the
> need to use some tc magic, this should be a separate fixes patch,
> right?

My colleague Steen, has sent a patch series here [1].
This allows to PTP rules in HW without any tc commands.

[1] https://lore.kernel.org/lkml/20230105081335.1261636-1-steen.hegelund@microchip.com/T/

> 
> -michael

-- 
/Horatiu