On Sat, Apr 03, 2021 at 01:48:46PM +0200, Oleksij Rempel wrote:
> This switch is providing forwarding matrix, with it we can configure
> individual bridges. Potentially we can configure more then one not VLAN
> based bridge on this HW.
>
> Signed-off-by: Oleksij Rempel <o.rem...@pengutronix.de>
> ---
> drivers/net/dsa/qca/ar9331.c | 73 ++++++++++++++++++++++++++++++++++++
> 1 file changed, 73 insertions(+)
>
> diff --git a/drivers/net/dsa/qca/ar9331.c b/drivers/net/dsa/qca/ar9331.c
> index b2c22ba924f0..bf9588574205 100644
> --- a/drivers/net/dsa/qca/ar9331.c
> +++ b/drivers/net/dsa/qca/ar9331.c
> @@ -40,6 +40,7 @@
> */
>
> #include <linux/bitfield.h>
> +#include <linux/if_bridge.h>
> #include <linux/module.h>
> #include <linux/of_irq.h>
> #include <linux/of_mdio.h>
> @@ -1134,6 +1135,76 @@ static int ar9331_sw_set_ageing_time(struct dsa_switch
> *ds,
> val);
> }
>
> +static int ar9331_sw_port_bridge_join(struct dsa_switch *ds, int port,
> + struct net_device *br)
> +{
> + struct ar9331_sw_priv *priv = (struct ar9331_sw_priv *)ds->priv;
> + struct regmap *regmap = priv->regmap;
> + int port_mask = BIT(priv->cpu_port);
> + int i, ret;
> + u32 val;
> +
> + for (i = 0; i < ds->num_ports; i++) {
> + if (dsa_to_port(ds, i)->bridge_dev != br)
> + continue;
> +
> + if (!dsa_is_user_port(ds, port))
> + continue;
> +
> + val = FIELD_PREP(AR9331_SW_PORT_VLAN_PORT_VID_MEMBER,
> BIT(port));
> + ret = regmap_set_bits(regmap, AR9331_SW_REG_PORT_VLAN(i), val);
> + if (ret)
> + goto error;
> +
> + if (i != port)
> + port_mask |= BIT(i);
> + }
> +
> + val = FIELD_PREP(AR9331_SW_PORT_VLAN_PORT_VID_MEMBER, port_mask);
> + ret = regmap_update_bits(regmap, AR9331_SW_REG_PORT_VLAN(port),
> + AR9331_SW_PORT_VLAN_PORT_VID_MEMBER, val);
> + if (ret)
> + goto error;
> +
> + return 0;
> +error:
> + dev_err_ratelimited(priv->dev, "%s: error: %i\n", __func__, ret);
> +
> + return ret;
> +}
> +
> +static void ar9331_sw_port_bridge_leave(struct dsa_switch *ds, int port,
> + struct net_device *br)
> +{
> + struct ar9331_sw_priv *priv = (struct ar9331_sw_priv *)ds->priv;
> + struct regmap *regmap = priv->regmap;
> + int i, ret;
> + u32 val;
> +
> + for (i = 0; i < ds->num_ports; i++) {
> + if (dsa_to_port(ds, i)->bridge_dev != br)
> + continue;
> +
> + if (!dsa_is_user_port(ds, port))
> + continue;
> +
> + val = FIELD_PREP(AR9331_SW_PORT_VLAN_PORT_VID_MEMBER,
> BIT(port));
> + ret = regmap_clear_bits(regmap, AR9331_SW_REG_PORT_VLAN(i),
> val);
> + if (ret)
> + goto error;
> + }
Join and leave only seems to differ by:
> + if (i != port)
> + port_mask |= BIT(i);
Maybe refactor the code to add a helper for the identical parts?
Andrew
