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 9dd16c9b1a10..e2f2e91cfdd2 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;
 }