Merge branch 'bcm_sf2-vlan'

Florian Fainelli says:

====================
net: dsa: bcm_sf2: add VLAN support

This is long overdue, finally add support for VLANs in the Broadcom Starfigther
2 switch driver.

There are a few things that make us differ from e.g; mv88e6xxx.c:

- we keep a software cache of which VLANs are enabled and which are not to
  dramatically speed up the VLAN dump operation, we do not have any HW operation
  which would only return the list of valid VLAN entries, they would have to be
  all queried one by one, with 4K vlans, this takes a while

- the default behavior is equivalent to setting VLAN filtering to 1, still working
  on implementing a proper port_vlan_filtering callback, but I figured the most
  conservative behavior is probably okay anyway

- without enabling VLANs, the default behavior is to receive any 802.1q frames
  (per the DSA documentation), however, once we start enabling VLAN support, if
  an interface leaves the bridge, we still want it to receive all 802.1q frames
  so we utiliez the "Join all VLAN" feature of the switch to perform that
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/dsa/bcm_sf2.h

@@ -21,6 +21,7 @@
 #include <linux/ethtool.h>
 #include <linux/types.h>
 #include <linux/bitops.h>
+#include <linux/if_vlan.h>
 
 #include <net/dsa.h>
 
@@ -50,6 +51,7 @@ struct bcm_sf2_port_status {
 	struct ethtool_eee eee;
 
 	u32 vlan_ctl_mask;
+	u16 pvid;
 
 	struct net_device *bridge_dev;
 };
@@ -63,6 +65,11 @@ struct bcm_sf2_arl_entry {
 	u8 is_static:1;
 };
 
+struct bcm_sf2_vlan {
+	u16 members;
+	u16 untag;
+};
+
 static inline void bcm_sf2_mac_from_u64(u64 src, u8 *dst)
 {
 	unsigned int i;
@@ -148,6 +155,9 @@ struct bcm_sf2_priv {
 	struct device_node		*master_mii_dn;
 	struct mii_bus			*slave_mii_bus;
 	struct mii_bus			*master_mii_bus;
+
+	/* Cache of programmed VLANs */
+	struct bcm_sf2_vlan		vlans[VLAN_N_VID];
 };
 
 struct bcm_sf2_hw_stats {

drivers/net/dsa/bcm_sf2_regs.h

@@ -274,6 +274,23 @@
 #define CORE_ARLA_SRCH_RSLT_MACVID(x)	(CORE_ARLA_SRCH_RSLT_0_MACVID + ((x) * 0x40))
 #define CORE_ARLA_SRCH_RSLT(x)		(CORE_ARLA_SRCH_RSLT_0 + ((x) * 0x40))
 
+#define CORE_ARLA_VTBL_RWCTRL		0x1600
+#define  ARLA_VTBL_CMD_WRITE		0
+#define  ARLA_VTBL_CMD_READ		1
+#define  ARLA_VTBL_CMD_CLEAR		2
+#define  ARLA_VTBL_STDN			(1 << 7)
+
+#define CORE_ARLA_VTBL_ADDR		0x1604
+#define  VTBL_ADDR_INDEX_MASK		0xfff
+
+#define CORE_ARLA_VTBL_ENTRY		0x160c
+#define  FWD_MAP_MASK			0x1ff
+#define  UNTAG_MAP_MASK			0x1ff
+#define  UNTAG_MAP_SHIFT		9
+#define  MSTP_INDEX_MASK		0x7
+#define  MSTP_INDEX_SHIFT		18
+#define  FWD_MODE			(1 << 21)
+
 #define CORE_MEM_PSM_VDD_CTRL		0x2380
 #define  P_TXQ_PSM_VDD_SHIFT		2
 #define  P_TXQ_PSM_VDD_MASK		0x3
@@ -287,6 +304,59 @@
 #define CORE_PORT_VLAN_CTL_PORT(x)	(0xc400 + ((x) * 0x8))
 #define  PORT_VLAN_CTRL_MASK		0x1ff
 
+#define CORE_VLAN_CTRL0			0xd000
+#define  CHANGE_1P_VID_INNER		(1 << 0)
+#define  CHANGE_1P_VID_OUTER		(1 << 1)
+#define  CHANGE_1Q_VID			(1 << 3)
+#define  VLAN_LEARN_MODE_SVL		(0 << 5)
+#define  VLAN_LEARN_MODE_IVL		(3 << 5)
+#define  VLAN_EN			(1 << 7)
+
+#define CORE_VLAN_CTRL1			0xd004
+#define  EN_RSV_MCAST_FWDMAP		(1 << 2)
+#define  EN_RSV_MCAST_UNTAG		(1 << 3)
+#define  EN_IPMC_BYPASS_FWDMAP		(1 << 5)
+#define  EN_IPMC_BYPASS_UNTAG		(1 << 6)
+
+#define CORE_VLAN_CTRL2			0xd008
+#define  EN_MIIM_BYPASS_V_FWDMAP	(1 << 2)
+#define  EN_GMRP_GVRP_V_FWDMAP		(1 << 5)
+#define  EN_GMRP_GVRP_UNTAG_MAP		(1 << 6)
+
+#define CORE_VLAN_CTRL3			0xd00c
+#define  EN_DROP_NON1Q_MASK		0x1ff
+
+#define CORE_VLAN_CTRL4			0xd014
+#define  RESV_MCAST_FLOOD		(1 << 1)
+#define  EN_DOUBLE_TAG_MASK		0x3
+#define  EN_DOUBLE_TAG_SHIFT		2
+#define  EN_MGE_REV_GMRP		(1 << 4)
+#define  EN_MGE_REV_GVRP		(1 << 5)
+#define  INGR_VID_CHK_SHIFT		6
+#define  INGR_VID_CHK_MASK		0x3
+#define  INGR_VID_CHK_FWD		(0 << INGR_VID_CHK_SHIFT)
+#define  INGR_VID_CHK_DROP		(1 << INGR_VID_CHK_SHIFT)
+#define  INGR_VID_CHK_NO_CHK		(2 << INGR_VID_CHK_SHIFT)
+#define  INGR_VID_CHK_VID_VIOL_IMP	(3 << INGR_VID_CHK_SHIFT)
+
+#define CORE_VLAN_CTRL5			0xd018
+#define  EN_CPU_RX_BYP_INNER_CRCCHCK	(1 << 0)
+#define  EN_VID_FFF_FWD			(1 << 2)
+#define  DROP_VTABLE_MISS		(1 << 3)
+#define  EGRESS_DIR_FRM_BYP_TRUNK_EN	(1 << 4)
+#define  PRESV_NON1Q			(1 << 6)
+
+#define CORE_VLAN_CTRL6			0xd01c
+#define  STRICT_SFD_DETECT		(1 << 0)
+#define  DIS_ARL_BUST_LMIT		(1 << 4)
+
+#define CORE_DEFAULT_1Q_TAG_P(x)	(0xd040 + ((x) * 8))
+#define  CFI_SHIFT			12
+#define  PRI_SHIFT			13
+#define  PRI_MASK			0x7
+
+#define CORE_JOIN_ALL_VLAN_EN		0xd140
+
 #define CORE_EEE_EN_CTRL		0x24800
 #define CORE_EEE_LPI_INDICATE		0x24810