From: Yotam Gigi <yot...@mellanox.com>
This register is used for allocation of regions in the TCAM table and it
will be used by the multicast router offloading logic.
Signed-off-by: Yotam Gigi <yot...@mellanox.com>
Reviewed-by: Ido Schimmel <ido...@mellanox.com>
Signed-off-by: Jiri Pirko <j...@mellanox.com>
---
drivers/net/ethernet/mellanox/mlxsw/reg.h | 52 +++++++++++++++++++++++++++++++
1 file changed, 52 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h
b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index fb8ab44..e9f37ea 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -4310,6 +4310,57 @@ mlxsw_reg_ritr_loopback_ipip4_pack(char *payload,
mlxsw_reg_ritr_loopback_ipip_usip4_set(payload, usip);
}
+/* RTAR - Router TCAM Allocation Register
+ * --------------------------------------
+ * This register is used for allocation of regions in the TCAM table.
+ */
+#define MLXSW_REG_RTAR_ID 0x8004
+#define MLXSW_REG_RTAR_LEN 0x20
+
+MLXSW_REG_DEFINE(rtar, MLXSW_REG_RTAR_ID, MLXSW_REG_RTAR_LEN);
+
+enum mlxsw_reg_rtar_op {
+ MLXSW_REG_RTAR_OP_ALLOCATE,
+ MLXSW_REG_RTAR_OP_RESIZE,
+ MLXSW_REG_RTAR_OP_DEALLOCATE,
+};
+
+/* reg_rtar_op
+ * Access: WO
+ */
+MLXSW_ITEM32(reg, rtar, op, 0x00, 28, 4);
+
+enum mlxsw_reg_rtar_key_type {
+ MLXSW_REG_RTAR_KEY_TYPE_IPV4_MULTICAST = 1,
+ MLXSW_REG_RTAR_KEY_TYPE_IPV6_MULTICAST = 3
+};
+
+/* reg_rtar_key_type
+ * TCAM key type for the region.
+ * Access: WO
+ */
+MLXSW_ITEM32(reg, rtar, key_type, 0x00, 0, 8);
+
+/* reg_rtar_region_size
+ * TCAM region size. When allocating/resizing this is the requested
+ * size, the response is the actual size.
+ * Note: Actual size may be larger than requested.
+ * Reserved for op = Deallocate
+ * Access: WO
+ */
+MLXSW_ITEM32(reg, rtar, region_size, 0x04, 0, 16);
+
+static inline void mlxsw_reg_rtar_pack(char *payload,
+ enum mlxsw_reg_rtar_op op,
+ enum mlxsw_reg_rtar_key_type key_type,
+ u16 region_size)
+{
+ MLXSW_REG_ZERO(rtar, payload);
+ mlxsw_reg_rtar_op_set(payload, op);
+ mlxsw_reg_rtar_key_type_set(payload, key_type);
+ mlxsw_reg_rtar_region_size_set(payload, region_size);
+}
+
/* RATR - Router Adjacency Table Register
* --------------------------------------
* The RATR register is used to configure the Router Adjacency (next-hop)
@@ -6855,6 +6906,7 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = {
MLXSW_REG(hpkt),
MLXSW_REG(rgcr),
MLXSW_REG(ritr),
+ MLXSW_REG(rtar),
MLXSW_REG(ratr),
MLXSW_REG(rtdp),
MLXSW_REG(ricnt),
--
2.9.5
