net: dsa: felix: support psfp filter on vsc9959

VSC9959 supports Per-Stream Filtering and Policing(PSFP) that complies
with the IEEE 802.1Qci standard. The stream is identified by Null stream
identification(DMAC and VLAN ID) defined in IEEE802.1CB.

For PSFP, four tables need to be set up: stream table, stream filter
table, stream gate table, and flow meter table. Identify the stream by
parsing the tc flower keys and add it to the stream table. The stream
filter table is automatically maintained, and its index is determined by
SGID(flow gate index) and FMID(flow meter index).
Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/soc/mscc/ocelot.h

@@ -586,6 +586,12 @@ enum ocelot_port_tag_config {
 	OCELOT_PORT_TAG_TRUNK = 3,
 };
 
+struct ocelot_psfp_list {
+	struct list_head stream_list;
+	struct list_head sfi_list;
+	struct list_head sgi_list;
+};
+
 enum ocelot_sb {
 	OCELOT_SB_BUF,
 	OCELOT_SB_REF,
@@ -687,6 +693,8 @@ struct ocelot {
 	struct ocelot_vcap_block	block[3];
 	struct vcap_props		*vcap;
 
+	struct ocelot_psfp_list		psfp;
+
 	/* Workqueue to check statistics for overflow with its lock */
 	struct mutex			stats_lock;
 	u64				*stats;

include/soc/mscc/ocelot_ana.h

@@ -227,6 +227,11 @@
 #define ANA_TABLES_SFIDACCESS_SFID_TBL_CMD(x)             ((x) & GENMASK(1, 0))
 #define ANA_TABLES_SFIDACCESS_SFID_TBL_CMD_M              GENMASK(1, 0)
 
+#define SFIDACCESS_CMD_IDLE                               0
+#define SFIDACCESS_CMD_READ                               1
+#define SFIDACCESS_CMD_WRITE                              2
+#define SFIDACCESS_CMD_INIT                               3
+
 #define ANA_TABLES_SFIDTIDX_SGID_VALID                    BIT(26)
 #define ANA_TABLES_SFIDTIDX_SGID(x)                       (((x) << 18) & GENMASK(25, 18))
 #define ANA_TABLES_SFIDTIDX_SGID_M                        GENMASK(25, 18)
@@ -255,6 +260,11 @@
 #define ANA_SG_CONFIG_REG_3_INIT_IPS(x)                   (((x) << 21) & GENMASK(24, 21))
 #define ANA_SG_CONFIG_REG_3_INIT_IPS_M                    GENMASK(24, 21)
 #define ANA_SG_CONFIG_REG_3_INIT_IPS_X(x)                 (((x) & GENMASK(24, 21)) >> 21)
+#define ANA_SG_CONFIG_REG_3_IPV_VALID                     BIT(24)
+#define ANA_SG_CONFIG_REG_3_IPV_INVALID(x)                (((x) << 24) & GENMASK(24, 24))
+#define ANA_SG_CONFIG_REG_3_INIT_IPV(x)                   (((x) << 21) & GENMASK(23, 21))
+#define ANA_SG_CONFIG_REG_3_INIT_IPV_M                    GENMASK(23, 21)
+#define ANA_SG_CONFIG_REG_3_INIT_IPV_X(x)                 (((x) & GENMASK(23, 21)) >> 21)
 #define ANA_SG_CONFIG_REG_3_INIT_GATE_STATE               BIT(25)
 
 #define ANA_SG_GCL_GS_CONFIG_RSZ                          0x4