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Commit 53568438 authored by Florian Fainelli's avatar Florian Fainelli Committed by David S. Miller
Browse files

net: dsa: b53: Add support for port_egress_floods callback 



Add support for configuring the per-port egress flooding control for
both Unicast and Multicast traffic.

Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent aa2eaa8c

drivers/net/dsa/b53/b53_common.c

+33 −0
Original line number Diff line number Diff line
@@ -342,6 +342,13 @@ static void b53_set_forwarding(struct b53_device *dev, int enable) 
	b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_CTRL, &mgmt);

	mgmt |= B53_MII_DUMB_FWDG_EN;

	b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_CTRL, mgmt);



	/* Look at B53_UC_FWD_EN and B53_MC_FWD_EN to decide whether

	 * frames should be flooded or not.

	 */

	b53_read8(dev, B53_CTRL_PAGE, B53_IP_MULTICAST_CTRL, &mgmt);

	mgmt |= B53_UC_FWD_EN | B53_MC_FWD_EN;

	b53_write8(dev, B53_CTRL_PAGE, B53_IP_MULTICAST_CTRL, mgmt);

}



static void b53_enable_vlan(struct b53_device *dev, bool enable,
@@ -1753,6 +1760,31 @@ void b53_br_fast_age(struct dsa_switch *ds, int port) 
}

EXPORT_SYMBOL(b53_br_fast_age);



int b53_br_egress_floods(struct dsa_switch *ds, int port,

			 bool unicast, bool multicast)

{

	struct b53_device *dev = ds->priv;

	u16 uc, mc;



	b53_read16(dev, B53_CTRL_PAGE, B53_UC_FWD_EN, &uc);

	if (unicast)

		uc |= BIT(port);

	else

		uc &= ~BIT(port);

	b53_write16(dev, B53_CTRL_PAGE, B53_UC_FWD_EN, uc);



	b53_read16(dev, B53_CTRL_PAGE, B53_MC_FWD_EN, &mc);

	if (multicast)

		mc |= BIT(port);

	else

		mc &= ~BIT(port);

	b53_write16(dev, B53_CTRL_PAGE, B53_MC_FWD_EN, mc);



	return 0;



}

EXPORT_SYMBOL(b53_br_egress_floods);



static bool b53_possible_cpu_port(struct dsa_switch *ds, int port)

{

	/* Broadcom switches will accept enabling Broadcom tags on the
@@ -1953,6 +1985,7 @@ static const struct dsa_switch_ops b53_switch_ops = { 
	.port_bridge_leave	= b53_br_leave,

	.port_stp_state_set	= b53_br_set_stp_state,

	.port_fast_age		= b53_br_fast_age,

	.port_egress_floods	= b53_br_egress_floods,

	.port_vlan_filtering	= b53_vlan_filtering,

	.port_vlan_prepare	= b53_vlan_prepare,

	.port_vlan_add		= b53_vlan_add,

drivers/net/dsa/b53/b53_priv.h

+2 −0
Original line number Diff line number Diff line
@@ -319,6 +319,8 @@ int b53_br_join(struct dsa_switch *ds, int port, struct net_device *bridge); 
void b53_br_leave(struct dsa_switch *ds, int port, struct net_device *bridge);

void b53_br_set_stp_state(struct dsa_switch *ds, int port, u8 state);

void b53_br_fast_age(struct dsa_switch *ds, int port);

int b53_br_egress_floods(struct dsa_switch *ds, int port,

			 bool unicast, bool multicast);

void b53_port_event(struct dsa_switch *ds, int port);

void b53_phylink_validate(struct dsa_switch *ds, int port,

			  unsigned long *supported,