@@ -319,6 +319,12 @@ static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device,
return ds->rtable[device];
}
+
+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);
+}
+
/* Return the local port used to reach the dedicated CPU port */
static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port)
{
@@ -331,6 +337,18 @@ static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port)
return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->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, port);
+}
+
typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid,
bool is_static, void *data);
struct dsa_switch_ops {
@@ -255,6 +255,24 @@ static void dsa_tree_teardown_default_cpu(struct dsa_switch_tree *dst)
dst->cpu_dp = NULL;
}
+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;
+}
+
static int dsa_port_setup(struct dsa_port *dp)
{
struct dsa_switch *ds = dp->ds;
based on https://github.com/openwrt/openwrt/blob/master/target/linux/mediatek/patches-4.14/0033-dsa-multi-cpu.patch Signed-off-by: Frank Wunderlich <frank-w@public-files.de> --- include/net/dsa.h | 18 ++++++++++++++++++ net/dsa/dsa2.c | 18 ++++++++++++++++++ 2 files changed, 36 insertions(+)