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openwrt/target/linux/mediatek/patches-4.14/0033-dsa-multi-cpu.patch

269 lines
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--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -670,6 +670,9 @@ static int
mt7530_cpu_port_enable(struct mt7530_priv *priv,
int port)
{
+ u8 port_mask = 0;
+ int i;
+
/* Enable Mediatek header mode on the cpu port */
mt7530_write(priv, MT7530_PVC_P(port),
PORT_SPEC_TAG);
@@ -686,8 +689,12 @@ mt7530_cpu_port_enable(struct mt7530_pri
/* CPU port gets connected to all user ports of
* the switch
*/
+ for (i = 0; i < MT7530_NUM_PORTS; i++)
+ if ((priv->ds->enabled_port_mask & BIT(i)) &&
+ (dsa_port_upstream_port(priv->ds, i) == port))
+ port_mask |= BIT(i);
mt7530_write(priv, MT7530_PCR_P(port),
- PCR_MATRIX(priv->ds->enabled_port_mask));
+ PCR_MATRIX(port_mask));
return 0;
}
@@ -697,6 +704,7 @@ mt7530_port_enable(struct dsa_switch *ds
struct phy_device *phy)
{
struct mt7530_priv *priv = ds->priv;
+ u8 upstream = dsa_port_upstream_port(ds, port);
mutex_lock(&priv->reg_mutex);
@@ -707,7 +715,7 @@ mt7530_port_enable(struct dsa_switch *ds
* restore the port matrix if the port is the member of a certain
* bridge.
*/
- priv->ports[port].pm |= PCR_MATRIX(BIT(MT7530_CPU_PORT));
+ priv->ports[port].pm |= PCR_MATRIX(BIT(upstream));
priv->ports[port].enable = true;
mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
priv->ports[port].pm);
@@ -770,7 +778,8 @@ mt7530_port_bridge_join(struct dsa_switc
struct net_device *bridge)
{
struct mt7530_priv *priv = ds->priv;
- u32 port_bitmap = BIT(MT7530_CPU_PORT);
+ u8 upstream = dsa_port_upstream_port(ds, port);
+ u32 port_bitmap = BIT(upstream);
int i;
mutex_lock(&priv->reg_mutex);
@@ -808,6 +817,7 @@ mt7530_port_bridge_leave(struct dsa_swit
struct net_device *bridge)
{
struct mt7530_priv *priv = ds->priv;
+ u8 upstream = dsa_port_upstream_port(ds, port);
int i;
mutex_lock(&priv->reg_mutex);
@@ -832,8 +842,8 @@ mt7530_port_bridge_leave(struct dsa_swit
*/
if (priv->ports[port].enable)
mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
- PCR_MATRIX(BIT(MT7530_CPU_PORT)));
- priv->ports[port].pm = PCR_MATRIX(BIT(MT7530_CPU_PORT));
+ PCR_MATRIX(BIT(upstream)));
+ priv->ports[port].pm = PCR_MATRIX(BIT(upstream));
mutex_unlock(&priv->reg_mutex);
}
@@ -908,15 +918,7 @@ err:
static enum dsa_tag_protocol
mtk_get_tag_protocol(struct dsa_switch *ds)
{
- struct mt7530_priv *priv = ds->priv;
-
- if (!dsa_is_cpu_port(ds, MT7530_CPU_PORT)) {
- dev_warn(priv->dev,
- "port not matched with tagging CPU port\n");
- return DSA_TAG_PROTO_NONE;
- } else {
- return DSA_TAG_PROTO_MTK;
- }
+ return DSA_TAG_PROTO_MTK;
}
static int
@@ -989,7 +991,7 @@ mt7530_setup(struct dsa_switch *ds)
/* Enable Port 6 only; P5 as GMAC5 which currently is not supported */
val = mt7530_read(priv, MT7530_MHWTRAP);
- val &= ~MHWTRAP_P6_DIS & ~MHWTRAP_PHY_ACCESS;
+ val &= ~MHWTRAP_P5_DIS & ~MHWTRAP_P6_DIS & ~MHWTRAP_PHY_ACCESS;
val |= MHWTRAP_MANUAL;
if (!dsa_is_cpu_port(ds, 5)) {
val |= MHWTRAP_P5_DIS;
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -185,6 +185,10 @@ struct dsa_port {
u8 stp_state;
struct net_device *bridge_dev;
struct devlink_port devlink_port;
+
+ struct net_device *ethernet;
+ int upstream;
+
/*
* Original copy of the master netdev ethtool_ops
*/
@@ -266,6 +270,11 @@ static inline bool dsa_is_normal_port(st
return !dsa_is_cpu_port(ds, p) && !dsa_is_dsa_port(ds, p);
}
+static inline bool dsa_is_upstream_port(struct dsa_switch *ds, int p)
+{
+ return dsa_is_cpu_port(ds, p) || dsa_is_dsa_port(ds, p);
+}
+
static inline u8 dsa_upstream_port(struct dsa_switch *ds)
{
struct dsa_switch_tree *dst = ds->dst;
@@ -282,6 +291,18 @@ static inline u8 dsa_upstream_port(struc
return ds->rtable[dst->cpu_dp->ds->index];
}
+static inline u8 dsa_port_upstream_port(struct dsa_switch *ds, int port)
+{
+ /*
+ * If this port has a specific upstream cpu port, use it,
+ * otherwise use the switch default.
+ */
+ if (ds->ports[port].upstream)
+ return ds->ports[port].upstream;
+ else
+ return dsa_upstream_port(ds);
+}
+
typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid,
bool is_static, void *data);
struct dsa_switch_ops {
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -253,6 +253,8 @@ static int dsa_cpu_port_apply(struct dsa
memset(&port->devlink_port, 0, sizeof(port->devlink_port));
err = devlink_port_register(ds->devlink, &port->devlink_port,
port->index);
+ if (port->netdev)
+ port->netdev->dsa_ptr = ds->dst;
return err;
}
@@ -262,6 +264,12 @@ static void dsa_cpu_port_unapply(struct
dsa_cpu_dsa_destroy(port);
port->ds->cpu_port_mask &= ~BIT(port->index);
+ if (port->netdev)
+ port->netdev->dsa_ptr = NULL;
+ if (port->ethernet) {
+ dev_put(port->ethernet);
+ port->ethernet = NULL;
+ }
}
static int dsa_user_port_apply(struct dsa_port *port)
@@ -505,10 +513,9 @@ static int dsa_cpu_parse(struct dsa_port
dev_put(ethernet_dev);
}
- if (!dst->cpu_dp) {
+ if (!dst->cpu_dp)
dst->cpu_dp = port;
- dst->cpu_dp->netdev = ethernet_dev;
- }
+ port->netdev = ethernet_dev;
/* Initialize cpu_port_mask now for drv->setup()
* to have access to a correct value, just like what
@@ -526,6 +533,29 @@ static int dsa_cpu_parse(struct dsa_port
dst->rcv = dst->tag_ops->rcv;
+ dev_hold(ethernet_dev);
+ ds->ports[index].ethernet = ethernet_dev;
+ ds->cpu_port_mask |= BIT(index);
+
+ return 0;
+}
+
+static int dsa_user_parse(struct dsa_port *port, u32 index,
+ struct dsa_switch *ds)
+{
+ struct device_node *cpu_port;
+ const unsigned int *cpu_port_reg;
+ int cpu_port_index;
+
+ cpu_port = of_parse_phandle(port->dn, "cpu", 0);
+ if (cpu_port) {
+ cpu_port_reg = of_get_property(cpu_port, "reg", NULL);
+ if (!cpu_port_reg)
+ return -EINVAL;
+ cpu_port_index = be32_to_cpup(cpu_port_reg);
+ ds->ports[index].upstream = cpu_port_index;
+ }
+
return 0;
}
@@ -533,7 +563,7 @@ static int dsa_ds_parse(struct dsa_switc
{
struct dsa_port *port;
u32 index;
- int err;
+ int err = 0;
for (index = 0; index < ds->num_ports; index++) {
port = &ds->ports[index];
@@ -546,6 +576,9 @@ static int dsa_ds_parse(struct dsa_switc
if (err)
return err;
} else {
+ err = dsa_user_parse(port, index, ds);
+ if (err)
+ return err;
/* Initialize enabled_port_mask now for drv->setup()
* to have access to a correct value, just like what
* net/dsa/dsa.c::dsa_switch_setup_one does.
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -91,6 +91,8 @@ struct dsa_slave_priv {
/* TC context */
struct list_head mall_tc_list;
+
+ struct net_device *master;
};
/* dsa.c */
@@ -177,6 +179,9 @@ extern const struct dsa_device_ops trail
static inline struct net_device *dsa_master_netdev(struct dsa_slave_priv *p)
{
+ if (p->master)
+ return p->master;
+
return p->dp->cpu_dp->netdev;
}
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1267,7 +1267,7 @@ int dsa_slave_create(struct dsa_port *po
int ret;
cpu_dp = ds->dst->cpu_dp;
- master = cpu_dp->netdev;
+ master = ds->ports[port->upstream].ethernet;
if (!ds->num_tx_queues)
ds->num_tx_queues = 1;
@@ -1305,6 +1305,7 @@ int dsa_slave_create(struct dsa_port *po
p->dp = port;
INIT_LIST_HEAD(&p->mall_tc_list);
p->xmit = dst->tag_ops->xmit;
+ p->master = master;
p->old_pause = -1;
p->old_link = -1;
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