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Date: Sun, 14 Mar 2021 15:43:28 +0200
From: Leon Romanovsky <leon@...nel.org>
To: Kurt Kanzenbach <kurt@...-computers.de>
Cc: Andrew Lunn <andrew@...n.ch>,
Vivien Didelot <vivien.didelot@...il.com>,
Florian Fainelli <f.fainelli@...il.com>,
Vladimir Oltean <olteanv@...il.com>,
"David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next] net: dsa: hellcreek: Offload bridge port flags
On Sun, Mar 14, 2021 at 01:52:08PM +0100, Kurt Kanzenbach wrote:
> The switch implements unicast and multicast filtering per port.
> Add support for it. By default filtering is disabled.
>
> Signed-off-by: Kurt Kanzenbach <kurt@...-computers.de>
> ---
> drivers/net/dsa/hirschmann/hellcreek.c | 129 ++++++++++++++++++++-----
> 1 file changed, 104 insertions(+), 25 deletions(-)
>
> diff --git a/drivers/net/dsa/hirschmann/hellcreek.c b/drivers/net/dsa/hirschmann/hellcreek.c
> index c1f873a4fbc4..6cba02307bda 100644
> --- a/drivers/net/dsa/hirschmann/hellcreek.c
> +++ b/drivers/net/dsa/hirschmann/hellcreek.c
> @@ -600,6 +600,83 @@ static void hellcreek_setup_vlan_membership(struct dsa_switch *ds, int port,
> hellcreek_unapply_vlan(hellcreek, upstream, vid);
> }
>
> +static void hellcreek_port_set_ucast_flood(struct hellcreek *hellcreek,
> + int port, bool enable)
> +{
> + struct hellcreek_port *hellcreek_port;
> + u16 val;
> +
> + hellcreek_port = &hellcreek->ports[port];
> +
> + dev_dbg(hellcreek->dev, "%s unicast flooding on port %d\n",
> + enable ? "Enable" : "Disable", port);
> +
> + mutex_lock(&hellcreek->reg_lock);
> +
> + hellcreek_select_port(hellcreek, port);
> + val = hellcreek_port->ptcfg;
> + if (enable)
> + val &= ~HR_PTCFG_UUC_FLT;
> + else
> + val |= HR_PTCFG_UUC_FLT;
> + hellcreek_write(hellcreek, val, HR_PTCFG);
> + hellcreek_port->ptcfg = val;
> +
> + mutex_unlock(&hellcreek->reg_lock);
> +}
> +
> +static void hellcreek_port_set_mcast_flood(struct hellcreek *hellcreek,
> + int port, bool enable)
> +{
> + struct hellcreek_port *hellcreek_port;
> + u16 val;
> +
> + hellcreek_port = &hellcreek->ports[port];
> +
> + dev_dbg(hellcreek->dev, "%s multicast flooding on port %d\n",
> + enable ? "Enable" : "Disable", port);
> +
> + mutex_lock(&hellcreek->reg_lock);
> +
> + hellcreek_select_port(hellcreek, port);
> + val = hellcreek_port->ptcfg;
> + if (enable)
> + val &= ~HR_PTCFG_UMC_FLT;
> + else
> + val |= HR_PTCFG_UMC_FLT;
> + hellcreek_write(hellcreek, val, HR_PTCFG);
> + hellcreek_port->ptcfg = val;
> +
> + mutex_unlock(&hellcreek->reg_lock);
> +}
> +
> +static int hellcreek_pre_bridge_flags(struct dsa_switch *ds, int port,
> + struct switchdev_brport_flags flags,
> + struct netlink_ext_ack *extack)
> +{
> + if (flags.mask & ~(BR_FLOOD | BR_MCAST_FLOOD))
> + return -EINVAL;
> +
> + return 0;
> +}
> +
> +static int hellcreek_bridge_flags(struct dsa_switch *ds, int port,
> + struct switchdev_brport_flags flags,
> + struct netlink_ext_ack *extack)
> +{
> + struct hellcreek *hellcreek = ds->priv;
> +
> + if (flags.mask & BR_FLOOD)
> + hellcreek_port_set_ucast_flood(hellcreek, port,
> + !!(flags.val & BR_FLOOD));
> +
> + if (flags.mask & BR_MCAST_FLOOD)
> + hellcreek_port_set_mcast_flood(hellcreek, port,
> + !!(flags.val & BR_MCAST_FLOOD));
> +
> + return 0;
> +}
> +
> static int hellcreek_port_bridge_join(struct dsa_switch *ds, int port,
> struct net_device *br)
> {
> @@ -1719,31 +1796,33 @@ static int hellcreek_port_setup_tc(struct dsa_switch *ds, int port,
> }
>
> static const struct dsa_switch_ops hellcreek_ds_ops = {
> - .get_ethtool_stats = hellcreek_get_ethtool_stats,
> - .get_sset_count = hellcreek_get_sset_count,
> - .get_strings = hellcreek_get_strings,
> - .get_tag_protocol = hellcreek_get_tag_protocol,
> - .get_ts_info = hellcreek_get_ts_info,
> - .phylink_validate = hellcreek_phylink_validate,
> - .port_bridge_join = hellcreek_port_bridge_join,
> - .port_bridge_leave = hellcreek_port_bridge_leave,
> - .port_disable = hellcreek_port_disable,
> - .port_enable = hellcreek_port_enable,
> - .port_fdb_add = hellcreek_fdb_add,
> - .port_fdb_del = hellcreek_fdb_del,
> - .port_fdb_dump = hellcreek_fdb_dump,
> - .port_hwtstamp_set = hellcreek_port_hwtstamp_set,
> - .port_hwtstamp_get = hellcreek_port_hwtstamp_get,
> - .port_prechangeupper = hellcreek_port_prechangeupper,
> - .port_rxtstamp = hellcreek_port_rxtstamp,
> - .port_setup_tc = hellcreek_port_setup_tc,
> - .port_stp_state_set = hellcreek_port_stp_state_set,
> - .port_txtstamp = hellcreek_port_txtstamp,
> - .port_vlan_add = hellcreek_vlan_add,
> - .port_vlan_del = hellcreek_vlan_del,
> - .port_vlan_filtering = hellcreek_vlan_filtering,
> - .setup = hellcreek_setup,
> - .teardown = hellcreek_teardown,
> + .get_ethtool_stats = hellcreek_get_ethtool_stats,
> + .get_sset_count = hellcreek_get_sset_count,
> + .get_strings = hellcreek_get_strings,
> + .get_tag_protocol = hellcreek_get_tag_protocol,
> + .get_ts_info = hellcreek_get_ts_info,
> + .phylink_validate = hellcreek_phylink_validate,
> + .port_bridge_flags = hellcreek_bridge_flags,
> + .port_bridge_join = hellcreek_port_bridge_join,
> + .port_bridge_leave = hellcreek_port_bridge_leave,
> + .port_disable = hellcreek_port_disable,
> + .port_enable = hellcreek_port_enable,
> + .port_fdb_add = hellcreek_fdb_add,
> + .port_fdb_del = hellcreek_fdb_del,
> + .port_fdb_dump = hellcreek_fdb_dump,
> + .port_hwtstamp_set = hellcreek_port_hwtstamp_set,
> + .port_hwtstamp_get = hellcreek_port_hwtstamp_get,
> + .port_pre_bridge_flags = hellcreek_pre_bridge_flags,
> + .port_prechangeupper = hellcreek_port_prechangeupper,
> + .port_rxtstamp = hellcreek_port_rxtstamp,
> + .port_setup_tc = hellcreek_port_setup_tc,
> + .port_stp_state_set = hellcreek_port_stp_state_set,
> + .port_txtstamp = hellcreek_port_txtstamp,
> + .port_vlan_add = hellcreek_vlan_add,
> + .port_vlan_del = hellcreek_vlan_del,
> + .port_vlan_filtering = hellcreek_vlan_filtering,
> + .setup = hellcreek_setup,
> + .teardown = hellcreek_teardown,
> };
This patch is a perfect example why vertical space alignment is a bad thing.
Addition of one function caused to so much churn at the end.
Thanks
>
> static int hellcreek_probe(struct platform_device *pdev)
> --
> 2.30.2
>
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