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net: dsa: b53: Add support for port_egress_floods callback

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

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli 2019-09-12 20:28:39 -07:00 committed by David S. Miller
parent aa2eaa8c27
commit 53568438e3
2 changed files with 35 additions and 0 deletions
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33
drivers/net/dsa/b53/b53_common.c
View File

@ -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,

2
drivers/net/dsa/b53/b53_priv.h
View File

@ -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,