Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1244 commits)
  pkt_sched: Rename PSCHED_US2NS and PSCHED_NS2US
  ipv4: Fix fib_trie rebalancing
  Bluetooth: Fix issue with uninitialized nsh.type in DTL-1 driver
  Bluetooth: Fix Kconfig issue with RFKILL integration
  PIM-SM: namespace changes
  ipv4: update ARPD help text
  net: use a deferred timer in rt_check_expire
  ieee802154: fix kconfig bool/tristate muckup
  bonding: initialization rework
  bonding: use is_zero_ether_addr
  bonding: network device names are case sensative
  bonding: elminate bad refcount code
  bonding: fix style issues
  bonding: fix destructor
  bonding: remove bonding read/write semaphore
  bonding: initialize before registration
  bonding: bond_create always called with default parameters
  x_tables: Convert printk to pr_err
  netfilter: conntrack: optional reliable conntrack event delivery
  list_nulls: add hlist_nulls_add_head and hlist_nulls_del
  ...

1 files changed, 130 insertions, 57 deletions

diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c
index 9dd16c9b1a1..e2f2e91cfdd 100644
--- a/drivers/net/ucc_geth.c
+++ b/drivers/net/ucc_geth.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2006-2007 Freescale Semicondutor, Inc. All rights reserved.
+ * Copyright (C) 2006-2009 Freescale Semicondutor, Inc. All rights reserved.
  *
  * Author: Shlomi Gridish <gridish@freescale.com>
  *	   Li Yang <leoli@freescale.com>
@@ -27,6 +27,7 @@
 #include <linux/mii.h>
 #include <linux/phy.h>
 #include <linux/workqueue.h>
+#include <linux/of_mdio.h>
 #include <linux/of_platform.h>
 
 #include <asm/uaccess.h>
@@ -64,6 +65,8 @@
 
 static DEFINE_SPINLOCK(ugeth_lock);
 
+static void uec_configure_serdes(struct net_device *dev);
+
 static struct {
 	u32 msg_enable;
 } debug = { -1 };
@@ -1409,6 +1412,9 @@ static int adjust_enet_interface(struct ucc_geth_private *ugeth)
 	    (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
 		upsmr |= UCC_GETH_UPSMR_TBIM;
 	}
+	if ((ugeth->phy_interface == PHY_INTERFACE_MODE_SGMII))
+		upsmr |= UCC_GETH_UPSMR_SGMM;
+
 	out_be32(&uf_regs->upsmr, upsmr);
 
 	/* Disable autonegotiation in tbi mode, because by default it
@@ -1543,14 +1549,19 @@ static int init_phy(struct net_device *dev)
 	priv->oldspeed = 0;
 	priv->oldduplex = -1;
 
-	phydev = phy_connect(dev, ug_info->phy_bus_id, &adjust_link, 0,
-			     priv->phy_interface);
+	if (!ug_info->phy_node)
+		return 0;
 
-	if (IS_ERR(phydev)) {
+	phydev = of_phy_connect(dev, ug_info->phy_node, &adjust_link, 0,
+				priv->phy_interface);
+	if (!phydev) {
 		printk("%s: Could not attach to PHY\n", dev->name);
-		return PTR_ERR(phydev);
+		return -ENODEV;
 	}
 
+	if (priv->phy_interface == PHY_INTERFACE_MODE_SGMII)
+		uec_configure_serdes(dev);
+
 	phydev->supported &= (ADVERTISED_10baseT_Half |
 				 ADVERTISED_10baseT_Full |
 				 ADVERTISED_100baseT_Half |
@@ -1566,7 +1577,41 @@ static int init_phy(struct net_device *dev)
 	return 0;
 }
 
+/* Initialize TBI PHY interface for communicating with the
+ * SERDES lynx PHY on the chip.  We communicate with this PHY
+ * through the MDIO bus on each controller, treating it as a
+ * "normal" PHY at the address found in the UTBIPA register.  We assume
+ * that the UTBIPA register is valid.  Either the MDIO bus code will set
+ * it to a value that doesn't conflict with other PHYs on the bus, or the
+ * value doesn't matter, as there are no other PHYs on the bus.
+ */
+static void uec_configure_serdes(struct net_device *dev)
+{
+	struct ucc_geth_private *ugeth = netdev_priv(dev);
+
+	if (!ugeth->tbiphy) {
+		printk(KERN_WARNING "SGMII mode requires that the device "
+			"tree specify a tbi-handle\n");
+	return;
+	}
+
+	/*
+	 * If the link is already up, we must already be ok, and don't need to
+	 * configure and reset the TBI<->SerDes link.  Maybe U-Boot configured
+	 * everything for us?  Resetting it takes the link down and requires
+	 * several seconds for it to come back.
+	 */
+	if (phy_read(ugeth->tbiphy, ENET_TBI_MII_SR) & TBISR_LSTATUS)
+		return;
 
+	/* Single clk mode, mii mode off(for serdes communication) */
+	phy_write(ugeth->tbiphy, ENET_TBI_MII_ANA, TBIANA_SETTINGS);
+
+	phy_write(ugeth->tbiphy, ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
+
+	phy_write(ugeth->tbiphy, ENET_TBI_MII_CR, TBICR_SETTINGS);
+
+}
 
 static int ugeth_graceful_stop_tx(struct ucc_geth_private *ugeth)
 {
@@ -3225,7 +3270,7 @@ static int ucc_geth_tx(struct net_device *dev, u8 txQ)
 		dev->stats.tx_packets++;
 
 		/* Free the sk buffer associated with this TxBD */
-		dev_kfree_skb_irq(ugeth->
+		dev_kfree_skb(ugeth->
 				  tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]]);
 		ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]] = NULL;
 		ugeth->skb_dirtytx[txQ] =
@@ -3259,9 +3304,15 @@ static int ucc_geth_poll(struct napi_struct *napi, int budget)
 	for (i = 0; i < ug_info->numQueuesRx; i++)
 		howmany += ucc_geth_rx(ugeth, i, budget - howmany);
 
+	/* Tx event processing */
+	spin_lock(&ugeth->lock);
+	for (i = 0; i < ug_info->numQueuesTx; i++)
+		ucc_geth_tx(ugeth->ndev, i);
+	spin_unlock(&ugeth->lock);
+
 	if (howmany < budget) {
 		napi_complete(napi);
-		setbits32(ugeth->uccf->p_uccm, UCCE_RX_EVENTS);
+		setbits32(ugeth->uccf->p_uccm, UCCE_RX_EVENTS | UCCE_TX_EVENTS);
 	}
 
 	return howmany;
@@ -3275,8 +3326,6 @@ static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
 	struct ucc_geth_info *ug_info;
 	register u32 ucce;
 	register u32 uccm;
-	register u32 tx_mask;
-	u8 i;
 
 	ugeth_vdbg("%s: IN", __func__);
 
@@ -3290,27 +3339,14 @@ static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
 	out_be32(uccf->p_ucce, ucce);
 
 	/* check for receive events that require processing */
-	if (ucce & UCCE_RX_EVENTS) {
+	if (ucce & (UCCE_RX_EVENTS | UCCE_TX_EVENTS)) {
 		if (napi_schedule_prep(&ugeth->napi)) {
-			uccm &= ~UCCE_RX_EVENTS;
+			uccm &= ~(UCCE_RX_EVENTS | UCCE_TX_EVENTS);
 			out_be32(uccf->p_uccm, uccm);
 			__napi_schedule(&ugeth->napi);
 		}
 	}
 
-	/* Tx event processing */
-	if (ucce & UCCE_TX_EVENTS) {
-		spin_lock(&ugeth->lock);
-		tx_mask = UCC_GETH_UCCE_TXB0;
-		for (i = 0; i < ug_info->numQueuesTx; i++) {
-			if (ucce & tx_mask)
-				ucc_geth_tx(dev, i);
-			ucce &= ~tx_mask;
-			tx_mask <<= 1;
-		}
-		spin_unlock(&ugeth->lock);
-	}
-
 	/* Errors and other events */
 	if (ucce & UCCE_OTHER) {
 		if (ucce & UCC_GETH_UCCE_BSY)
@@ -3339,6 +3375,37 @@ static void ucc_netpoll(struct net_device *dev)
 }
 #endif /* CONFIG_NET_POLL_CONTROLLER */
 
+static int ucc_geth_set_mac_addr(struct net_device *dev, void *p)
+{
+	struct ucc_geth_private *ugeth = netdev_priv(dev);
+	struct sockaddr *addr = p;
+
+	if (!is_valid_ether_addr(addr->sa_data))
+		return -EADDRNOTAVAIL;
+
+	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+
+	/*
+	 * If device is not running, we will set mac addr register
+	 * when opening the device.
+	 */
+	if (!netif_running(dev))
+		return 0;
+
+	spin_lock_irq(&ugeth->lock);
+	init_mac_station_addr_regs(dev->dev_addr[0],
+				   dev->dev_addr[1],
+				   dev->dev_addr[2],
+				   dev->dev_addr[3],
+				   dev->dev_addr[4],
+				   dev->dev_addr[5],
+				   &ugeth->ug_regs->macstnaddr1,
+				   &ugeth->ug_regs->macstnaddr2);
+	spin_unlock_irq(&ugeth->lock);
+
+	return 0;
+}
+
 /* Called when something needs to use the ethernet device */
 /* Returns 0 for success. */
 static int ucc_geth_open(struct net_device *dev)
@@ -3506,6 +3573,8 @@ static phy_interface_t to_phy_interface(const char *phy_connection_type)
 		return PHY_INTERFACE_MODE_RGMII_RXID;
 	if (strcasecmp(phy_connection_type, "rtbi") == 0)
 		return PHY_INTERFACE_MODE_RTBI;
+	if (strcasecmp(phy_connection_type, "sgmii") == 0)
+		return PHY_INTERFACE_MODE_SGMII;
 
 	return PHY_INTERFACE_MODE_MII;
 }
@@ -3515,7 +3584,7 @@ static const struct net_device_ops ucc_geth_netdev_ops = {
 	.ndo_stop		= ucc_geth_close,
 	.ndo_start_xmit		= ucc_geth_start_xmit,
 	.ndo_validate_addr	= eth_validate_addr,
-	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_set_mac_address	= ucc_geth_set_mac_addr,
 	.ndo_change_mtu		= eth_change_mtu,
 	.ndo_set_multicast_list	= ucc_geth_set_multi,
 	.ndo_tx_timeout		= ucc_geth_timeout,
@@ -3528,14 +3597,12 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
 {
 	struct device *device = &ofdev->dev;
 	struct device_node *np = ofdev->node;
-	struct device_node *mdio;
 	struct net_device *dev = NULL;
 	struct ucc_geth_private *ugeth = NULL;
 	struct ucc_geth_info *ug_info;
 	struct resource res;
 	struct device_node *phy;
 	int err, ucc_num, max_speed = 0;
-	const phandle *ph;
 	const u32 *fixed_link;
 	const unsigned int *prop;
 	const char *sprop;
@@ -3552,6 +3619,7 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
 		PHY_INTERFACE_MODE_RMII, PHY_INTERFACE_MODE_RGMII,
 		PHY_INTERFACE_MODE_GMII, PHY_INTERFACE_MODE_RGMII,
 		PHY_INTERFACE_MODE_TBI, PHY_INTERFACE_MODE_RTBI,
+		PHY_INTERFACE_MODE_SGMII,
 	};
 
 	ugeth_vdbg("%s: IN", __func__);
@@ -3635,40 +3703,13 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
 	ug_info->uf_info.irq = irq_of_parse_and_map(np, 0);
 	fixed_link = of_get_property(np, "fixed-link", NULL);
 	if (fixed_link) {
-		snprintf(ug_info->phy_bus_id, sizeof(ug_info->phy_bus_id),
-			 PHY_ID_FMT, "0", fixed_link[0]);
 		phy = NULL;
 	} else {
-		char bus_name[MII_BUS_ID_SIZE];
-
-		ph = of_get_property(np, "phy-handle", NULL);
-		phy = of_find_node_by_phandle(*ph);
-
+		phy = of_parse_phandle(np, "phy-handle", 0);
 		if (phy == NULL)
 			return -ENODEV;
-
-		/* set the PHY address */
-		prop = of_get_property(phy, "reg", NULL);
-		if (prop == NULL)
-			return -1;
-
-		/* Set the bus id */
-		mdio = of_get_parent(phy);
-
-		if (mdio == NULL)
-			return -ENODEV;
-
-		err = of_address_to_resource(mdio, 0, &res);
-
-		if (err) {
-			of_node_put(mdio);
-			return err;
-		}
-		fsl_pq_mdio_bus_name(bus_name, mdio);
-		of_node_put(mdio);
-		snprintf(ug_info->phy_bus_id, sizeof(ug_info->phy_bus_id),
-			"%s:%02x", bus_name, *prop);
 	}
+	ug_info->phy_node = phy;
 
 	/* get the phy interface type, or default to MII */
 	prop = of_get_property(np, "phy-connection-type", NULL);
@@ -3694,6 +3735,7 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
 		case PHY_INTERFACE_MODE_RGMII_TXID:
 		case PHY_INTERFACE_MODE_TBI:
 		case PHY_INTERFACE_MODE_RTBI:
+		case PHY_INTERFACE_MODE_SGMII:
 			max_speed = SPEED_1000;
 			break;
 		default:
@@ -3751,7 +3793,7 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
 	dev->netdev_ops = &ucc_geth_netdev_ops;
 	dev->watchdog_timeo = TX_TIMEOUT;
 	INIT_WORK(&ugeth->timeout_work, ucc_geth_timeout_work);
-	netif_napi_add(dev, &ugeth->napi, ucc_geth_poll, UCC_GETH_DEV_WEIGHT);
+	netif_napi_add(dev, &ugeth->napi, ucc_geth_poll, 64);
 	dev->mtu = 1500;
 
 	ugeth->msg_enable = netif_msg_init(debug.msg_enable, UGETH_MSG_DEFAULT);
@@ -3776,6 +3818,37 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
 	ugeth->ndev = dev;
 	ugeth->node = np;
 
+	/* Find the TBI PHY.  If it's not there, we don't support SGMII */
+	ph = of_get_property(np, "tbi-handle", NULL);
+	if (ph) {
+		struct device_node *tbi = of_find_node_by_phandle(*ph);
+		struct of_device *ofdev;
+		struct mii_bus *bus;
+		const unsigned int *id;
+
+		if (!tbi)
+			return 0;
+
+		mdio = of_get_parent(tbi);
+		if (!mdio)
+			return 0;
+
+		ofdev = of_find_device_by_node(mdio);
+
+		of_node_put(mdio);
+
+		id = of_get_property(tbi, "reg", NULL);
+		if (!id)
+			return 0;
+		of_node_put(tbi);
+
+		bus = dev_get_drvdata(&ofdev->dev);
+		if (!bus)
+			return 0;
+
+		ugeth->tbiphy = bus->phy_map[*id];
+	}
+
 	return 0;
 }