Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/jkirsher/net-next-2.6

3 files changed, 48 insertions, 2 deletions

diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h
index 9bb192825893..6b80d40110ca 100644
--- a/drivers/net/igb/e1000_defines.h
+++ b/drivers/net/igb/e1000_defines.h
@@ -51,6 +51,7 @@
 #define E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES  0x00C00000
 #define E1000_CTRL_EXT_LINK_MODE_1000BASE_KX  0x00400000
 #define E1000_CTRL_EXT_LINK_MODE_SGMII   0x00800000
+#define E1000_CTRL_EXT_LINK_MODE_GMII   0x00000000
 #define E1000_CTRL_EXT_EIAME          0x01000000
 #define E1000_CTRL_EXT_IRCA           0x00000001
 /* Interrupt delay cancellation */
@@ -788,6 +789,10 @@
 #define E1000_MDIC_ERROR     0x40000000
 #define E1000_MDIC_DEST      0x80000000
 
+/* Thermal Sensor */
+#define E1000_THSTAT_PWR_DOWN       0x00000001 /* Power Down Event */
+#define E1000_THSTAT_LINK_THROTTLE  0x00000002 /* Link Speed Throttle Event */
+
 /* Energy Efficient Ethernet */
 #define E1000_IPCNFG_EEE_1G_AN       0x00000008  /* EEE Enable 1G AN */
 #define E1000_IPCNFG_EEE_100M_AN     0x00000004  /* EEE Enable 100M AN */
diff --git a/drivers/net/igb/e1000_regs.h b/drivers/net/igb/e1000_regs.h
index ad77ed510d7c..958ca3bda482 100644
--- a/drivers/net/igb/e1000_regs.h
+++ b/drivers/net/igb/e1000_regs.h
@@ -342,6 +342,9 @@
 #define E1000_IPCNFG  0x0E38  /* Internal PHY Configuration */
 #define E1000_EEER    0x0E30  /* Energy Efficient Ethernet */
 
+/* Thermal Sensor Register */
+#define E1000_THSTAT    0x08110 /* Thermal Sensor Status */
+
 /* OS2BMC Registers */
 #define E1000_B2OSPC    0x08FE0 /* BMC2OS packets sent by BMC */
 #define E1000_B2OGPRC   0x04158 /* BMC2OS packets received by host */
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index b4f92b06f2ac..3d850af0cdda 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -106,6 +106,7 @@ static void igb_free_all_rx_resources(struct igb_adapter *);
 static void igb_setup_mrqc(struct igb_adapter *);
 static int igb_probe(struct pci_dev *, const struct pci_device_id *);
 static void __devexit igb_remove(struct pci_dev *pdev);
+static void igb_init_hw_timer(struct igb_adapter *adapter);
 static int igb_sw_init(struct igb_adapter *);
 static int igb_open(struct net_device *);
 static int igb_close(struct net_device *);
@@ -2048,6 +2049,9 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	}
 
 #endif
+	/* do hw tstamp init after resetting */
+	igb_init_hw_timer(adapter);
+
 	dev_info(&pdev->dev, "Intel(R) Gigabit Ethernet Network Connection\n");
 	/* print bus type/speed/width info */
 	dev_info(&pdev->dev, "%s: (PCIe:%s:%s) %pM\n",
@@ -2384,7 +2388,6 @@ static int __devinit igb_sw_init(struct igb_adapter *adapter)
 		return -ENOMEM;
 	}
 
-	igb_init_hw_timer(adapter);
 	igb_probe_vfs(adapter);
 
 	/* Explicitly disable IRQ since the NIC can be in any state. */
@@ -3547,7 +3550,7 @@ static void igb_watchdog_task(struct work_struct *work)
                                                    watchdog_task);
 	struct e1000_hw *hw = &adapter->hw;
 	struct net_device *netdev = adapter->netdev;
-	u32 link;
+	u32 link, ctrl_ext, thstat;
 	int i;
 
 	link = igb_has_link(adapter);
@@ -3571,6 +3574,25 @@ static void igb_watchdog_task(struct work_struct *work)
 			       ((ctrl & E1000_CTRL_RFCE) ?  "RX" :
 			       ((ctrl & E1000_CTRL_TFCE) ?  "TX" : "None")));
 
+			/* check for thermal sensor event on i350,
+			 * copper only */
+			if (hw->mac.type == e1000_i350) {
+				thstat = rd32(E1000_THSTAT);
+				ctrl_ext = rd32(E1000_CTRL_EXT);
+				if ((hw->phy.media_type ==
+				     e1000_media_type_copper) && !(ctrl_ext &
+				     E1000_CTRL_EXT_LINK_MODE_SGMII)) {
+					if (thstat &
+					    E1000_THSTAT_LINK_THROTTLE) {
+						printk(KERN_INFO "igb: %s The "
+						       "network adapter link "
+						       "speed was downshifted "
+						       "because it "
+						       "overheated.\n",
+						       netdev->name);
+					}
+				}
+			}
 			/* adjust timeout factor according to speed/duplex */
 			adapter->tx_timeout_factor = 1;
 			switch (adapter->link_speed) {
@@ -3596,6 +3618,22 @@ static void igb_watchdog_task(struct work_struct *work)
 		if (netif_carrier_ok(netdev)) {
 			adapter->link_speed = 0;
 			adapter->link_duplex = 0;
+			/* check for thermal sensor event on i350
+			 * copper only*/
+			if (hw->mac.type == e1000_i350) {
+				thstat = rd32(E1000_THSTAT);
+				ctrl_ext = rd32(E1000_CTRL_EXT);
+				if ((hw->phy.media_type ==
+				     e1000_media_type_copper) && !(ctrl_ext &
+				     E1000_CTRL_EXT_LINK_MODE_SGMII)) {
+					if (thstat & E1000_THSTAT_PWR_DOWN) {
+						printk(KERN_ERR "igb: %s The "
+						"network adapter was stopped "
+						"because it overheated.\n",
+						netdev->name);
+					}
+				}
+			}
 			/* Links status message must follow this format */
 			printk(KERN_INFO "igb: %s NIC Link is Down\n",
 			       netdev->name);