Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:
 "Another merge window, another set of networking changes.  I've heard
  rumblings that the lightweight tunnels infrastructure has been voted
  networking change of the year.  But what do I know?

   1) Add conntrack support to openvswitch, from Joe Stringer.

   2) Initial support for VRF (Virtual Routing and Forwarding), which
      allows the segmentation of routing paths without using multiple
      devices.  There are some semantic kinks to work out still, but
      this is a reasonably strong foundation.  From David Ahern.

   3) Remove spinlock fro act_bpf fast path, from Alexei Starovoitov.

   4) Ignore route nexthops with a link down state in ipv6, just like
      ipv4.  From Andy Gospodarek.

   5) Remove spinlock from fast path of act_gact and act_mirred, from
      Eric Dumazet.

   6) Document the DSA layer, from Florian Fainelli.

   7) Add netconsole support to bcmgenet, systemport, and DSA.  Also
      from Florian Fainelli.

   8) Add Mellanox Switch Driver and core infrastructure, from Jiri
      Pirko.

   9) Add support for "light weight tunnels", which allow for
      encapsulation and decapsulation without bearing the overhead of a
      full blown netdevice.  From Thomas Graf, Jiri Benc, and a cast of
      others.

  10) Add Identifier Locator Addressing support for ipv6, from Tom
      Herbert.

  11) Support fragmented SKBs in iwlwifi, from Johannes Berg.

  12) Allow perf PMUs to be accessed from eBPF programs, from Kaixu Xia.

  13) Add BQL support to 3c59x driver, from Loganaden Velvindron.

  14) Stop using a zero TX queue length to mean that a device shouldn't
      have a qdisc attached, use an explicit flag instead.  From Phil
      Sutter.

  15) Use generic geneve netdevice infrastructure in openvswitch, from
      Pravin B Shelar.

  16) Add infrastructure to avoid re-forwarding a packet in software
      that was already forwarded by a hardware switch.  From Scott
      Feldman.

  17) Allow AF_PACKET fanout function to be implemented in a bpf
      program, from Willem de Bruijn"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1458 commits)
  netfilter: nf_conntrack: make nf_ct_zone_dflt built-in
  netfilter: nf_dup{4, 6}: fix build error when nf_conntrack disabled
  net: fec: clear receive interrupts before processing a packet
  ipv6: fix exthdrs offload registration in out_rt path
  xen-netback: add support for multicast control
  bgmac: Update fixed_phy_register()
  sock, diag: fix panic in sock_diag_put_filterinfo
  flow_dissector: Use 'const' where possible.
  flow_dissector: Fix function argument ordering dependency
  ixgbe: Resolve "initialized field overwritten" warnings
  ixgbe: Remove bimodal SR-IOV disabling
  ixgbe: Add support for reporting 2.5G link speed
  ixgbe: fix bounds checking in ixgbe_setup_tc for 82598
  ixgbe: support for ethtool set_rxfh
  ixgbe: Avoid needless PHY access on copper phys
  ixgbe: cleanup to use cached mask value
  ixgbe: Remove second instance of lan_id variable
  ixgbe: use kzalloc for allocating one thing
  flow: Move __get_hash_from_flowi{4,6} into flow_dissector.c
  ixgbe: Remove unused PCI bus types
  ...

1 files changed, 58 insertions, 55 deletions

diff --git a/drivers/net/ethernet/broadcom/genet/bcmmii.c b/drivers/net/ethernet/broadcom/genet/bcmmii.c
index adf23d2..c8affad 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
@@ -163,14 +163,13 @@ void bcmgenet_mii_setup(struct net_device *dev)
 	phy_print_status(phydev);
 }
 
-void bcmgenet_mii_reset(struct net_device *dev)
+static int bcmgenet_fixed_phy_link_update(struct net_device *dev,
+					  struct fixed_phy_status *status)
 {
-	struct bcmgenet_priv *priv = netdev_priv(dev);
+	if (dev && dev->phydev && status)
+		status->link = dev->phydev->link;
 
-	if (priv->phydev) {
-		phy_init_hw(priv->phydev);
-		phy_start_aneg(priv->phydev);
-	}
+	return 0;
 }
 
 void bcmgenet_phy_power_set(struct net_device *dev, bool enable)
@@ -215,7 +214,6 @@ static void bcmgenet_internal_phy_setup(struct net_device *dev)
 	reg = bcmgenet_ext_readl(priv, EXT_EXT_PWR_MGMT);
 	reg |= EXT_PWR_DN_EN_LD;
 	bcmgenet_ext_writel(priv, reg, EXT_EXT_PWR_MGMT);
-	bcmgenet_mii_reset(dev);
 }
 
 static void bcmgenet_moca_phy_setup(struct bcmgenet_priv *priv)
@@ -226,9 +224,13 @@ static void bcmgenet_moca_phy_setup(struct bcmgenet_priv *priv)
 	reg = bcmgenet_sys_readl(priv, SYS_PORT_CTRL);
 	reg |= LED_ACT_SOURCE_MAC;
 	bcmgenet_sys_writel(priv, reg, SYS_PORT_CTRL);
+
+	if (priv->hw_params->flags & GENET_HAS_MOCA_LINK_DET)
+		fixed_phy_set_link_update(priv->phydev,
+					  bcmgenet_fixed_phy_link_update);
 }
 
-int bcmgenet_mii_config(struct net_device *dev, bool init)
+int bcmgenet_mii_config(struct net_device *dev)
 {
 	struct bcmgenet_priv *priv = netdev_priv(dev);
 	struct phy_device *phydev = priv->phydev;
@@ -238,10 +240,10 @@ int bcmgenet_mii_config(struct net_device *dev, bool init)
 	u32 port_ctrl;
 	u32 reg;
 
-	priv->ext_phy = !phy_is_internal(priv->phydev) &&
+	priv->ext_phy = !priv->internal_phy &&
 			(priv->phy_interface != PHY_INTERFACE_MODE_MOCA);
 
-	if (phy_is_internal(priv->phydev))
+	if (priv->internal_phy)
 		priv->phy_interface = PHY_INTERFACE_MODE_NA;
 
 	switch (priv->phy_interface) {
@@ -259,7 +261,7 @@ int bcmgenet_mii_config(struct net_device *dev, bool init)
 
 		bcmgenet_sys_writel(priv, port_ctrl, SYS_PORT_CTRL);
 
-		if (phy_is_internal(priv->phydev)) {
+		if (priv->internal_phy) {
 			phy_name = "internal PHY";
 			bcmgenet_internal_phy_setup(dev);
 		} else if (priv->phy_interface == PHY_INTERFACE_MODE_MOCA) {
@@ -321,13 +323,12 @@ int bcmgenet_mii_config(struct net_device *dev, bool init)
 		bcmgenet_ext_writel(priv, reg, EXT_RGMII_OOB_CTRL);
 	}
 
-	if (init)
-		dev_info(kdev, "configuring instance for %s\n", phy_name);
+	dev_info_once(kdev, "configuring instance for %s\n", phy_name);
 
 	return 0;
 }
 
-static int bcmgenet_mii_probe(struct net_device *dev)
+int bcmgenet_mii_probe(struct net_device *dev)
 {
 	struct bcmgenet_priv *priv = netdev_priv(dev);
 	struct device_node *dn = priv->pdev->dev.of_node;
@@ -345,22 +346,6 @@ static int bcmgenet_mii_probe(struct net_device *dev)
 	priv->old_pause = -1;
 
 	if (dn) {
-		if (priv->phydev) {
-			pr_info("PHY already attached\n");
-			return 0;
-		}
-
-		/* In the case of a fixed PHY, the DT node associated
-		 * to the PHY is the Ethernet MAC DT node.
-		 */
-		if (!priv->phy_dn && of_phy_is_fixed_link(dn)) {
-			ret = of_phy_register_fixed_link(dn);
-			if (ret)
-				return ret;
-
-			priv->phy_dn = of_node_get(dn);
-		}
-
 		phydev = of_phy_connect(dev, priv->phy_dn, bcmgenet_mii_setup,
 					phy_flags, priv->phy_interface);
 		if (!phydev) {
@@ -386,7 +371,7 @@ static int bcmgenet_mii_probe(struct net_device *dev)
 	 * PHY speed which is needed for bcmgenet_mii_config() to configure
 	 * things appropriately.
 	 */
-	ret = bcmgenet_mii_config(dev, true);
+	ret = bcmgenet_mii_config(dev);
 	if (ret) {
 		phy_disconnect(priv->phydev);
 		return ret;
@@ -397,14 +382,11 @@ static int bcmgenet_mii_probe(struct net_device *dev)
 	/* The internal PHY has its link interrupts routed to the
 	 * Ethernet MAC ISRs
 	 */
-	if (phy_is_internal(priv->phydev))
+	if (priv->internal_phy)
 		priv->mii_bus->irq[phydev->addr] = PHY_IGNORE_INTERRUPT;
 	else
 		priv->mii_bus->irq[phydev->addr] = PHY_POLL;
 
-	pr_info("attached PHY at address %d [%s]\n",
-		phydev->addr, phydev->drv->name);
-
 	return 0;
 }
 
@@ -490,7 +472,10 @@ static int bcmgenet_mii_of_init(struct bcmgenet_priv *priv)
 {
 	struct device_node *dn = priv->pdev->dev.of_node;
 	struct device *kdev = &priv->pdev->dev;
+	const char *phy_mode_str = NULL;
+	struct phy_device *phydev = NULL;
 	char *compat;
+	int phy_mode;
 	int ret;
 
 	compat = kasprintf(GFP_KERNEL, "brcm,genet-mdio-v%d", priv->version);
@@ -513,17 +498,43 @@ static int bcmgenet_mii_of_init(struct bcmgenet_priv *priv)
 	/* Fetch the PHY phandle */
 	priv->phy_dn = of_parse_phandle(dn, "phy-handle", 0);
 
+	/* In the case of a fixed PHY, the DT node associated
+	 * to the PHY is the Ethernet MAC DT node.
+	 */
+	if (!priv->phy_dn && of_phy_is_fixed_link(dn)) {
+		ret = of_phy_register_fixed_link(dn);
+		if (ret)
+			return ret;
+
+		priv->phy_dn = of_node_get(dn);
+	}
+
 	/* Get the link mode */
-	priv->phy_interface = of_get_phy_mode(dn);
+	phy_mode = of_get_phy_mode(dn);
+	priv->phy_interface = phy_mode;
 
-	return 0;
-}
+	/* We need to specifically look up whether this PHY interface is internal
+	 * or not *before* we even try to probe the PHY driver over MDIO as we
+	 * may have shut down the internal PHY for power saving purposes.
+	 */
+	if (phy_mode < 0) {
+		ret = of_property_read_string(dn, "phy-mode", &phy_mode_str);
+		if (ret < 0) {
+			dev_err(kdev, "invalid PHY mode property\n");
+			return ret;
+		}
 
-static int bcmgenet_fixed_phy_link_update(struct net_device *dev,
-					  struct fixed_phy_status *status)
-{
-	if (dev && dev->phydev && status)
-		status->link = dev->phydev->link;
+		priv->phy_interface = PHY_INTERFACE_MODE_NA;
+		if (!strcasecmp(phy_mode_str, "internal"))
+			priv->internal_phy = true;
+	}
+
+	/* Make sure we initialize MoCA PHYs with a link down */
+	if (phy_mode == PHY_INTERFACE_MODE_MOCA) {
+		phydev = of_phy_find_device(dn);
+		if (phydev)
+			phydev->link = 0;
+	}
 
 	return 0;
 }
@@ -574,18 +585,15 @@ static int bcmgenet_mii_pd_init(struct bcmgenet_priv *priv)
 			.asym_pause = 0,
 		};
 
-		phydev = fixed_phy_register(PHY_POLL, &fphy_status, NULL);
+		phydev = fixed_phy_register(PHY_POLL, &fphy_status, -1, NULL);
 		if (!phydev || IS_ERR(phydev)) {
 			dev_err(kdev, "failed to register fixed PHY device\n");
 			return -ENODEV;
 		}
 
-		if (priv->hw_params->flags & GENET_HAS_MOCA_LINK_DET) {
-			ret = fixed_phy_set_link_update(
-				phydev, bcmgenet_fixed_phy_link_update);
-			if (!ret)
-				phydev->link = 0;
-		}
+		/* Make sure we initialize MoCA PHYs with a link down */
+		phydev->link = 0;
+
 	}
 
 	priv->phydev = phydev;
@@ -615,10 +623,6 @@ int bcmgenet_mii_init(struct net_device *dev)
 
 	ret = bcmgenet_mii_bus_init(priv);
 	if (ret)
-		goto out_free;
-
-	ret = bcmgenet_mii_probe(dev);
-	if (ret)
 		goto out;
 
 	return 0;
@@ -626,7 +630,6 @@ int bcmgenet_mii_init(struct net_device *dev)
 out:
 	of_node_put(priv->phy_dn);
 	mdiobus_unregister(priv->mii_bus);
-out_free:
 	kfree(priv->mii_bus->irq);
 	mdiobus_free(priv->mii_bus);
 	return ret;