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

Pull networking merge from David Miller:
 "1) Move ixgbe driver over to purely page based buffering on receive.
     From Alexander Duyck.

  2) Add receive packet steering support to e1000e, from Bruce Allan.

  3) Convert TCP MD5 support over to RCU, from Eric Dumazet.

  4) Reduce cpu usage in handling out-of-order TCP packets on modern
     systems, also from Eric Dumazet.

  5) Support the IP{,V6}_UNICAST_IF socket options, making the wine
     folks happy, from Erich Hoover.

  6) Support VLAN trunking from guests in hyperv driver, from Haiyang
     Zhang.

  7) Support byte-queue-limtis in r8169, from Igor Maravic.

  8) Outline code intended for IP_RECVTOS in IP_PKTOPTIONS existed but
     was never properly implemented, Jiri Benc fixed that.

  9) 64-bit statistics support in r8169 and 8139too, from Junchang Wang.

  10) Support kernel side dump filtering by ctmark in netfilter
      ctnetlink, from Pablo Neira Ayuso.

  11) Support byte-queue-limits in gianfar driver, from Paul Gortmaker.

  12) Add new peek socket options to assist with socket migration, from
      Pavel Emelyanov.

  13) Add sch_plug packet scheduler whose queue is controlled by
      userland daemons using explicit freeze and release commands.  From
      Shriram Rajagopalan.

  14) Fix FCOE checksum offload handling on transmit, from Yi Zou."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1846 commits)
  Fix pppol2tp getsockname()
  Remove printk from rds_sendmsg
  ipv6: fix incorrent ipv6 ipsec packet fragment
  cpsw: Hook up default ndo_change_mtu.
  net: qmi_wwan: fix build error due to cdc-wdm dependecy
  netdev: driver: ethernet: Add TI CPSW driver
  netdev: driver: ethernet: add cpsw address lookup engine support
  phy: add am79c874 PHY support
  mlx4_core: fix race on comm channel
  bonding: send igmp report for its master
  fs_enet: Add MPC5125 FEC support and PHY interface selection
  net: bpf_jit: fix BPF_S_LDX_B_MSH compilation
  net: update the usage of CHECKSUM_UNNECESSARY
  fcoe: use CHECKSUM_UNNECESSARY instead of CHECKSUM_PARTIAL on tx
  net: do not do gso for CHECKSUM_UNNECESSARY in netif_needs_gso
  ixgbe: Fix issues with SR-IOV loopback when flow control is disabled
  net/hyperv: Fix the code handling tx busy
  ixgbe: fix namespace issues when FCoE/DCB is not enabled
  rtlwifi: Remove unused ETH_ADDR_LEN defines
  igbvf: Use ETH_ALEN
  ...

Fix up fairly trivial conflicts in drivers/isdn/gigaset/interface.c and
drivers/net/usb/{Kconfig,qmi_wwan.c} as per David.

5 files changed, 109 insertions, 91 deletions

diff --git a/drivers/net/ethernet/intel/igbvf/defines.h b/drivers/net/ethernet/intel/igbvf/defines.h
index 33f40d3..3e18045 100644
--- a/drivers/net/ethernet/intel/igbvf/defines.h
+++ b/drivers/net/ethernet/intel/igbvf/defines.h
@@ -97,10 +97,6 @@
 #define E1000_ERR_MAC_INIT 5
 #define E1000_ERR_MBX      15
 
-#ifndef ETH_ADDR_LEN
-#define ETH_ADDR_LEN                 6
-#endif
-
 /* SRRCTL bit definitions */
 #define E1000_SRRCTL_BSIZEPKT_SHIFT                     10 /* Shift _right_ */
 #define E1000_SRRCTL_BSIZEHDRSIZE_MASK                  0x00000F00
diff --git a/drivers/net/ethernet/intel/igbvf/ethtool.c b/drivers/net/ethernet/intel/igbvf/ethtool.c
index db7dce2..8ce6706 100644
--- a/drivers/net/ethernet/intel/igbvf/ethtool.c
+++ b/drivers/net/ethernet/intel/igbvf/ethtool.c
@@ -343,10 +343,10 @@ static int igbvf_get_coalesce(struct net_device *netdev,
 {
 	struct igbvf_adapter *adapter = netdev_priv(netdev);
 
-	if (adapter->itr_setting <= 3)
-		ec->rx_coalesce_usecs = adapter->itr_setting;
+	if (adapter->requested_itr <= 3)
+		ec->rx_coalesce_usecs = adapter->requested_itr;
 	else
-		ec->rx_coalesce_usecs = adapter->itr_setting >> 2;
+		ec->rx_coalesce_usecs = adapter->current_itr >> 2;
 
 	return 0;
 }
@@ -365,15 +365,16 @@ static int igbvf_set_coalesce(struct net_device *netdev,
 
 	/* convert to rate of irq's per second */
 	if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3) {
-		adapter->itr = IGBVF_START_ITR;
-		adapter->itr_setting = ec->rx_coalesce_usecs;
+		adapter->current_itr = IGBVF_START_ITR;
+		adapter->requested_itr = ec->rx_coalesce_usecs;
 	} else {
-		adapter->itr = ec->rx_coalesce_usecs << 2;
-		adapter->itr_setting = adapter->itr;
+		adapter->current_itr = ec->rx_coalesce_usecs << 2;
+		adapter->requested_itr = 1000000000 /
+					(adapter->current_itr * 256);
 	}
 
-	writel(adapter->itr,
-	       hw->hw_addr + adapter->rx_ring[0].itr_register);
+	writel(adapter->current_itr,
+	       hw->hw_addr + adapter->rx_ring->itr_register);
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/intel/igbvf/igbvf.h b/drivers/net/ethernet/intel/igbvf/igbvf.h
index 2c6d87e..a895e2f 100644
--- a/drivers/net/ethernet/intel/igbvf/igbvf.h
+++ b/drivers/net/ethernet/intel/igbvf/igbvf.h
@@ -43,7 +43,18 @@ struct igbvf_info;
 struct igbvf_adapter;
 
 /* Interrupt defines */
-#define IGBVF_START_ITR                 648 /* ~6000 ints/sec */
+#define IGBVF_START_ITR                    488 /* ~8000 ints/sec */
+#define IGBVF_4K_ITR                       980
+#define IGBVF_20K_ITR                      196
+#define IGBVF_70K_ITR                       56
+
+enum latency_range {
+	lowest_latency = 0,
+	low_latency = 1,
+	bulk_latency = 2,
+	latency_invalid = 255
+};
+
 
 /* Interrupt modes, as used by the IntMode parameter */
 #define IGBVF_INT_MODE_LEGACY           0
@@ -155,6 +166,7 @@ struct igbvf_ring {
 	char name[IFNAMSIZ + 5];
 	u32 eims_value;
 	u32 itr_val;
+	enum latency_range itr_range;
 	u16 itr_register;
 	int set_itr;
 
@@ -187,10 +199,8 @@ struct igbvf_adapter {
 	unsigned long state;
 
 	/* Interrupt Throttle Rate */
-	u32 itr;
-	u32 itr_setting;
-	u16 tx_itr;
-	u16 rx_itr;
+	u32 requested_itr; /* ints/sec or adaptive */
+	u32 current_itr; /* Actual ITR register value, not ints/sec */
 
 	/*
 	 * Tx
@@ -299,13 +309,6 @@ enum igbvf_state_t {
 	__IGBVF_DOWN
 };
 
-enum latency_range {
-	lowest_latency = 0,
-	low_latency = 1,
-	bulk_latency = 2,
-	latency_invalid = 255
-};
-
 extern char igbvf_driver_name[];
 extern const char igbvf_driver_version[];
 
diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c
index 4e9141c..217c143 100644
--- a/drivers/net/ethernet/intel/igbvf/netdev.c
+++ b/drivers/net/ethernet/intel/igbvf/netdev.c
@@ -632,14 +632,13 @@ void igbvf_free_rx_resources(struct igbvf_ring *rx_ring)
  *      traffic pattern.  Constants in this function were computed
  *      based on theoretical maximum wire speed and thresholds were set based
  *      on testing data as well as attempting to minimize response time
- *      while increasing bulk throughput.  This functionality is controlled
- *      by the InterruptThrottleRate module parameter.
+ *      while increasing bulk throughput.
  **/
-static unsigned int igbvf_update_itr(struct igbvf_adapter *adapter,
-                                     u16 itr_setting, int packets,
-                                     int bytes)
+static enum latency_range igbvf_update_itr(struct igbvf_adapter *adapter,
+					   enum latency_range itr_setting,
+					   int packets, int bytes)
 {
-	unsigned int retval = itr_setting;
+	enum latency_range retval = itr_setting;
 
 	if (packets == 0)
 		goto update_itr_done;
@@ -675,65 +674,87 @@ static unsigned int igbvf_update_itr(struct igbvf_adapter *adapter,
 			retval = low_latency;
 		}
 		break;
+	default:
+		break;
 	}
 
 update_itr_done:
 	return retval;
 }
 
-static void igbvf_set_itr(struct igbvf_adapter *adapter)
+static int igbvf_range_to_itr(enum latency_range current_range)
 {
-	struct e1000_hw *hw = &adapter->hw;
-	u16 current_itr;
-	u32 new_itr = adapter->itr;
-
-	adapter->tx_itr = igbvf_update_itr(adapter, adapter->tx_itr,
-	                                   adapter->total_tx_packets,
-	                                   adapter->total_tx_bytes);
-	/* conservative mode (itr 3) eliminates the lowest_latency setting */
-	if (adapter->itr_setting == 3 && adapter->tx_itr == lowest_latency)
-		adapter->tx_itr = low_latency;
-
-	adapter->rx_itr = igbvf_update_itr(adapter, adapter->rx_itr,
-	                                   adapter->total_rx_packets,
-	                                   adapter->total_rx_bytes);
-	/* conservative mode (itr 3) eliminates the lowest_latency setting */
-	if (adapter->itr_setting == 3 && adapter->rx_itr == lowest_latency)
-		adapter->rx_itr = low_latency;
-
-	current_itr = max(adapter->rx_itr, adapter->tx_itr);
+	int new_itr;
 
-	switch (current_itr) {
+	switch (current_range) {
 	/* counts and packets in update_itr are dependent on these numbers */
 	case lowest_latency:
-		new_itr = 70000;
+		new_itr = IGBVF_70K_ITR;
 		break;
 	case low_latency:
-		new_itr = 20000; /* aka hwitr = ~200 */
+		new_itr = IGBVF_20K_ITR;
 		break;
 	case bulk_latency:
-		new_itr = 4000;
+		new_itr = IGBVF_4K_ITR;
 		break;
 	default:
+		new_itr = IGBVF_START_ITR;
 		break;
 	}
+	return new_itr;
+}
+
+static void igbvf_set_itr(struct igbvf_adapter *adapter)
+{
+	u32 new_itr;
+
+	adapter->tx_ring->itr_range =
+			igbvf_update_itr(adapter,
+					 adapter->tx_ring->itr_val,
+					 adapter->total_tx_packets,
+					 adapter->total_tx_bytes);
+
+	/* conservative mode (itr 3) eliminates the lowest_latency setting */
+	if (adapter->requested_itr == 3 &&
+	    adapter->tx_ring->itr_range == lowest_latency)
+		adapter->tx_ring->itr_range = low_latency;
+
+	new_itr = igbvf_range_to_itr(adapter->tx_ring->itr_range);
+
 
-	if (new_itr != adapter->itr) {
+	if (new_itr != adapter->tx_ring->itr_val) {
+		u32 current_itr = adapter->tx_ring->itr_val;
 		/*
 		 * this attempts to bias the interrupt rate towards Bulk
 		 * by adding intermediate steps when interrupt rate is
 		 * increasing
 		 */
-		new_itr = new_itr > adapter->itr ?
-		             min(adapter->itr + (new_itr >> 2), new_itr) :
-		             new_itr;
-		adapter->itr = new_itr;
-		adapter->rx_ring->itr_val = 1952;
-
-		if (adapter->msix_entries)
-			adapter->rx_ring->set_itr = 1;
-		else
-			ew32(ITR, 1952);
+		new_itr = new_itr > current_itr ?
+			     min(current_itr + (new_itr >> 2), new_itr) :
+			     new_itr;
+		adapter->tx_ring->itr_val = new_itr;
+
+		adapter->tx_ring->set_itr = 1;
+	}
+
+	adapter->rx_ring->itr_range =
+			igbvf_update_itr(adapter, adapter->rx_ring->itr_val,
+					 adapter->total_rx_packets,
+					 adapter->total_rx_bytes);
+	if (adapter->requested_itr == 3 &&
+	    adapter->rx_ring->itr_range == lowest_latency)
+		adapter->rx_ring->itr_range = low_latency;
+
+	new_itr = igbvf_range_to_itr(adapter->rx_ring->itr_range);
+
+	if (new_itr != adapter->rx_ring->itr_val) {
+		u32 current_itr = adapter->rx_ring->itr_val;
+		new_itr = new_itr > current_itr ?
+			     min(current_itr + (new_itr >> 2), new_itr) :
+			     new_itr;
+		adapter->rx_ring->itr_val = new_itr;
+
+		adapter->rx_ring->set_itr = 1;
 	}
 }
 
@@ -835,6 +856,11 @@ static irqreturn_t igbvf_intr_msix_tx(int irq, void *data)
 	struct e1000_hw *hw = &adapter->hw;
 	struct igbvf_ring *tx_ring = adapter->tx_ring;
 
+	if (tx_ring->set_itr) {
+		writel(tx_ring->itr_val,
+		       adapter->hw.hw_addr + tx_ring->itr_register);
+		adapter->tx_ring->set_itr = 0;
+	}
 
 	adapter->total_tx_bytes = 0;
 	adapter->total_tx_packets = 0;
@@ -937,19 +963,10 @@ static void igbvf_configure_msix(struct igbvf_adapter *adapter)
 
 	igbvf_assign_vector(adapter, IGBVF_NO_QUEUE, 0, vector++);
 	adapter->eims_enable_mask |= tx_ring->eims_value;
-	if (tx_ring->itr_val)
-		writel(tx_ring->itr_val,
-		       hw->hw_addr + tx_ring->itr_register);
-	else
-		writel(1952, hw->hw_addr + tx_ring->itr_register);
-
+	writel(tx_ring->itr_val, hw->hw_addr + tx_ring->itr_register);
 	igbvf_assign_vector(adapter, 0, IGBVF_NO_QUEUE, vector++);
 	adapter->eims_enable_mask |= rx_ring->eims_value;
-	if (rx_ring->itr_val)
-		writel(rx_ring->itr_val,
-		       hw->hw_addr + rx_ring->itr_register);
-	else
-		writel(1952, hw->hw_addr + rx_ring->itr_register);
+	writel(rx_ring->itr_val, hw->hw_addr + rx_ring->itr_register);
 
 	/* set vector for other causes, i.e. link changes */
 
@@ -1027,7 +1044,7 @@ static int igbvf_request_msix(struct igbvf_adapter *adapter)
 		goto out;
 
 	adapter->tx_ring->itr_register = E1000_EITR(vector);
-	adapter->tx_ring->itr_val = 1952;
+	adapter->tx_ring->itr_val = adapter->current_itr;
 	vector++;
 
 	err = request_irq(adapter->msix_entries[vector].vector,
@@ -1037,7 +1054,7 @@ static int igbvf_request_msix(struct igbvf_adapter *adapter)
 		goto out;
 
 	adapter->rx_ring->itr_register = E1000_EITR(vector);
-	adapter->rx_ring->itr_val = 1952;
+	adapter->rx_ring->itr_val = adapter->current_itr;
 	vector++;
 
 	err = request_irq(adapter->msix_entries[vector].vector,
@@ -1151,7 +1168,7 @@ static int igbvf_poll(struct napi_struct *napi, int budget)
 	if (work_done < budget) {
 		napi_complete(napi);
 
-		if (adapter->itr_setting & 3)
+		if (adapter->requested_itr & 3)
 			igbvf_set_itr(adapter);
 
 		if (!test_bit(__IGBVF_DOWN, &adapter->state))
@@ -1521,8 +1538,8 @@ static int __devinit igbvf_sw_init(struct igbvf_adapter *adapter)
 	adapter->tx_abs_int_delay = 32;
 	adapter->rx_int_delay = 0;
 	adapter->rx_abs_int_delay = 8;
-	adapter->itr_setting = 3;
-	adapter->itr = 20000;
+	adapter->requested_itr = 3;
+	adapter->current_itr = IGBVF_START_ITR;
 
 	/* Set various function pointers */
 	adapter->ei->init_ops(&adapter->hw);
@@ -1695,6 +1712,7 @@ static int igbvf_set_mac(struct net_device *netdev, void *p)
 		return -EADDRNOTAVAIL;
 
 	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+	netdev->addr_assign_type &= ~NET_ADDR_RANDOM;
 
 	return 0;
 }
@@ -2695,18 +2713,19 @@ static int __devinit igbvf_probe(struct pci_dev *pdev,
 		dev_info(&pdev->dev,
 			 "PF still in reset state, assigning new address."
 			 " Is the PF interface up?\n");
-		dev_hw_addr_random(adapter->netdev, hw->mac.addr);
+		eth_hw_addr_random(netdev);
+		memcpy(adapter->hw.mac.addr, netdev->dev_addr,
+			netdev->addr_len);
 	} else {
 		err = hw->mac.ops.read_mac_addr(hw);
 		if (err) {
 			dev_err(&pdev->dev, "Error reading MAC address\n");
 			goto err_hw_init;
 		}
+		memcpy(netdev->dev_addr, adapter->hw.mac.addr,
+			netdev->addr_len);
 	}
 
-	memcpy(netdev->dev_addr, adapter->hw.mac.addr, netdev->addr_len);
-	memcpy(netdev->perm_addr, adapter->hw.mac.addr, netdev->addr_len);
-
 	if (!is_valid_ether_addr(netdev->perm_addr)) {
 		dev_err(&pdev->dev, "Invalid MAC Address: %pM\n",
 		        netdev->dev_addr);
@@ -2714,6 +2733,8 @@ static int __devinit igbvf_probe(struct pci_dev *pdev,
 		goto err_hw_init;
 	}
 
+	memcpy(netdev->perm_addr, adapter->hw.mac.addr, netdev->addr_len);
+
 	setup_timer(&adapter->watchdog_timer, &igbvf_watchdog,
 	            (unsigned long) adapter);
 
diff --git a/drivers/net/ethernet/intel/igbvf/vf.c b/drivers/net/ethernet/intel/igbvf/vf.c
index 1955197..30a6cc4 100644
--- a/drivers/net/ethernet/intel/igbvf/vf.c
+++ b/drivers/net/ethernet/intel/igbvf/vf.c
@@ -246,7 +246,7 @@ static void e1000_update_mc_addr_list_vf(struct e1000_hw *hw,
 	for (i = 0; i < cnt; i++) {
 		hash_value = e1000_hash_mc_addr_vf(hw, mc_addr_list);
 		hash_list[i] = hash_value & 0x0FFFF;
-		mc_addr_list += ETH_ADDR_LEN;
+		mc_addr_list += ETH_ALEN;
 	}
 
 	mbx->ops.write_posted(hw, msgbuf, E1000_VFMAILBOX_SIZE);
@@ -333,10 +333,7 @@ static void e1000_rar_set_vf(struct e1000_hw *hw, u8 * addr, u32 index)
  **/
 static s32 e1000_read_mac_addr_vf(struct e1000_hw *hw)
 {
-	int i;
-
-	for (i = 0; i < ETH_ADDR_LEN; i++)
-		hw->mac.addr[i] = hw->mac.perm_addr[i];
+	memcpy(hw->mac.addr, hw->mac.perm_addr, ETH_ALEN);
 
 	return E1000_SUCCESS;
 }