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path: root/drivers/net/ethernet/mscc/ocelot.h
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Diffstat (limited to 'drivers/net/ethernet/mscc/ocelot.h')
-rw-r--r--drivers/net/ethernet/mscc/ocelot.h31
1 files changed, 23 insertions, 8 deletions
diff --git a/drivers/net/ethernet/mscc/ocelot.h b/drivers/net/ethernet/mscc/ocelot.h
index abb407dff93c..291d39d49c4e 100644
--- a/drivers/net/ethernet/mscc/ocelot.h
+++ b/drivers/net/ethernet/mscc/ocelot.h
@@ -41,14 +41,6 @@ struct frame_info {
u32 timestamp; /* rew_val */
};
-struct ocelot_multicast {
- struct list_head list;
- unsigned char addr[ETH_ALEN];
- u16 vid;
- u16 ports;
- int pgid;
-};
-
struct ocelot_port_tc {
bool block_shared;
unsigned long offload_cnt;
@@ -87,6 +79,29 @@ enum macaccess_entry_type {
ENTRYTYPE_MACv6,
};
+/* A (PGID) port mask structure, encoding the 2^ocelot->num_phys_ports
+ * possibilities of egress port masks for L2 multicast traffic.
+ * For a switch with 9 user ports, there are 512 possible port masks, but the
+ * hardware only has 46 individual PGIDs that it can forward multicast traffic
+ * to. So we need a structure that maps the limited PGID indices to the port
+ * destinations requested by the user for L2 multicast.
+ */
+struct ocelot_pgid {
+ unsigned long ports;
+ int index;
+ refcount_t refcount;
+ struct list_head list;
+};
+
+struct ocelot_multicast {
+ struct list_head list;
+ enum macaccess_entry_type entry_type;
+ unsigned char addr[ETH_ALEN];
+ u16 vid;
+ u16 ports;
+ struct ocelot_pgid *pgid;
+};
+
int ocelot_port_fdb_do_dump(const unsigned char *addr, u16 vid,
bool is_static, void *data);
int ocelot_mact_learn(struct ocelot *ocelot, int port,