From: Vladimir Oltean <olteanv@gmail.com>
To: "Marek Behún" <kabel@kernel.org>
Cc: netdev@vger.kernel.org, pavana.sharma@digi.com,
Russell King - ARM Linux admin <linux@armlinux.org.uk>,
andrew@lunn.ch, ashkan.boldaji@digi.com, davem@davemloft.net,
kuba@kernel.org, f.fainelli@gmail.com, vivien.didelot@gmail.com,
lkp@intel.com
Subject: Re: [PATCH net-next v17 4/4] net: dsa: mv88e6xxx: implement .port_set_policy for Amethyst
Date: Wed, 17 Mar 2021 16:32:55 +0200 [thread overview]
Message-ID: <20210317143255.7vvan6kaclx7w4ys@skbuf> (raw)
In-Reply-To: <20210317134643.24463-5-kabel@kernel.org>
On Wed, Mar 17, 2021 at 02:46:43PM +0100, Marek Behún wrote:
> The 16-bit Port Policy CTL register from older chips is on 6393x changed
> to Port Policy MGMT CTL, which can access more data, but indirectly and
> via 8-bit registers.
>
> The original 16-bit value is divided into first two 8-bit register in
> the Port Policy MGMT CTL.
>
> We can therefore use the previous code to compute the mask and shift,
> and then
> - if 0 <= shift < 8, we access register 0 in Port Policy MGMT CTL
> - if 8 <= shift < 16, we access register 1 in Port Policy MGMT CTL
>
> There are in fact other possible policy settings for Amethyst which
> could be added here, but this can be done in the future.
..and not using ethtool --config-nfc perhaps, but with tc clsact, flower
filters and actions.
> Signed-off-by: Marek Behún <kabel@kernel.org>
> Reviewed-by: Pavana Sharma <pavana.sharma@digi.com>
> ---
I don't have any documentation for 6393x, but the change looks simple
enough.
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
next prev parent reply other threads:[~2021-03-17 14:33 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-17 13:46 [PATCH net-next v17 0/4] Add support for mv88e6393x family of Marvell Marek Behún
2021-03-17 13:46 ` [PATCH net-next v17 1/4] net: dsa: mv88e6xxx: change serdes lane parameter type from u8 type to int Marek Behún
2021-03-17 13:46 ` [PATCH net-next v17 2/4] net: dsa: mv88e6xxx: wrap .set_egress_port method Marek Behún
2021-03-17 14:22 ` Vladimir Oltean
2021-03-17 14:34 ` Marek Behún
2021-03-17 14:40 ` Vladimir Oltean
2021-03-17 13:46 ` [PATCH net-next v17 3/4] net: dsa: mv88e6xxx: add support for mv88e6393x family Marek Behún
2021-03-17 13:46 ` [PATCH net-next v17 4/4] net: dsa: mv88e6xxx: implement .port_set_policy for Amethyst Marek Behún
2021-03-17 14:32 ` Vladimir Oltean [this message]
2021-03-17 21:50 ` [PATCH net-next v17 0/4] Add support for mv88e6393x family of Marvell patchwork-bot+netdevbpf
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