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net: dsa: b53: Support setting learning on port

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commit f9b3827ee66cfcf297d0acd6ecf33653a5f297ef upstream.

Add support for being able to set the learning attribute on port, and
make sure that the standalone ports start up with learning disabled.

We can remove the code in bcm_sf2 that configured the ports learning
attribute because we want the standalone ports to have learning disabled
by default and port 7 cannot be bridged, so its learning attribute will
not change past its initial configuration.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Florian Fainelli 2021-02-22 14:30:10 -08:00 committed by Greg Kroah-Hartman
parent ebeefdc3d8
commit 5161cc4350
3 changed files with 19 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/net/dsa/b53/b53_common.c
View File

@ -514,6 +514,19 @@ void b53_imp_vlan_setup(struct dsa_switch *ds, int cpu_port)
}
EXPORT_SYMBOL(b53_imp_vlan_setup);
static void b53_port_set_learning(struct b53_device *dev, int port,
bool learning)
{
u16 reg;
b53_read16(dev, B53_CTRL_PAGE, B53_DIS_LEARNING, &reg);
if (learning)
reg &= ~BIT(port);
else
reg |= BIT(port);
b53_write16(dev, B53_CTRL_PAGE, B53_DIS_LEARNING, reg);
}
int b53_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy)
{
struct b53_device *dev = ds->priv;
@ -527,6 +540,7 @@ int b53_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy)
cpu_port = ds->ports[port].cpu_dp->index;
b53_br_egress_floods(ds, port, true, true);
b53_port_set_learning(dev, port, false);
if (dev->ops->irq_enable)
ret = dev->ops->irq_enable(dev, port);
@ -645,6 +659,7 @@ static void b53_enable_cpu_port(struct b53_device *dev, int port)
b53_brcm_hdr_setup(dev->ds, port);
b53_br_egress_floods(dev->ds, port, true, true);
b53_port_set_learning(dev, port, false);
}
static void b53_enable_mib(struct b53_device *dev)
@ -1704,6 +1719,8 @@ int b53_br_join(struct dsa_switch *ds, int port, struct net_device *br)
b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan);
dev->ports[port].vlan_ctl_mask = pvlan;
b53_port_set_learning(dev, port, true);
return 0;
}
EXPORT_SYMBOL(b53_br_join);
@ -1751,6 +1768,7 @@ void b53_br_leave(struct dsa_switch *ds, int port, struct net_device *br)
vl->untag |= BIT(port) | BIT(cpu_port);
b53_set_vlan_entry(dev, pvid, vl);
}
b53_port_set_learning(dev, port, false);
}
EXPORT_SYMBOL(b53_br_leave);

1
drivers/net/dsa/b53/b53_regs.h
View File

@ -115,6 +115,7 @@
#define B53_UC_FLOOD_MASK 0x32
#define B53_MC_FLOOD_MASK 0x34
#define B53_IPMC_FLOOD_MASK 0x36
#define B53_DIS_LEARNING 0x3c
/*
* Override Ports 0-7 State on devices with xMII interfaces (8 bit)

5
drivers/net/dsa/bcm_sf2.c
View File

@ -172,11 +172,6 @@ static int bcm_sf2_port_setup(struct dsa_switch *ds, int port,
reg &= ~P_TXQ_PSM_VDD(port);
core_writel(priv, reg, CORE_MEM_PSM_VDD_CTRL);
/* Enable learning */
reg = core_readl(priv, CORE_DIS_LEARN);
reg &= ~BIT(port);
core_writel(priv, reg, CORE_DIS_LEARN);
/* Enable Broadcom tags for that port if requested */
if (priv->brcm_tag_mask & BIT(port))
b53_brcm_hdr_setup(ds, port);