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igb: Add messaging for thermal sensor events on i350 devices
This feature adds messaging to the link status change to notify the user if the device returned from a downshift or power off event due to the Thermal Sensor feature in i350 parts. Feature is only available on internal copper ports. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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3 changed files with 44 additions and 1 deletions
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@ -51,6 +51,7 @@
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#define E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES 0x00C00000
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#define E1000_CTRL_EXT_LINK_MODE_1000BASE_KX 0x00400000
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#define E1000_CTRL_EXT_LINK_MODE_SGMII 0x00800000
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#define E1000_CTRL_EXT_LINK_MODE_GMII 0x00000000
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#define E1000_CTRL_EXT_EIAME 0x01000000
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#define E1000_CTRL_EXT_IRCA 0x00000001
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/* Interrupt delay cancellation */
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@ -788,6 +789,10 @@
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#define E1000_MDIC_ERROR 0x40000000
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#define E1000_MDIC_DEST 0x80000000
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/* Thermal Sensor */
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#define E1000_THSTAT_PWR_DOWN 0x00000001 /* Power Down Event */
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#define E1000_THSTAT_LINK_THROTTLE 0x00000002 /* Link Speed Throttle Event */
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/* Energy Efficient Ethernet */
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#define E1000_IPCNFG_EEE_1G_AN 0x00000008 /* EEE Enable 1G AN */
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#define E1000_IPCNFG_EEE_100M_AN 0x00000004 /* EEE Enable 100M AN */
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@ -342,6 +342,9 @@
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#define E1000_IPCNFG 0x0E38 /* Internal PHY Configuration */
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#define E1000_EEER 0x0E30 /* Energy Efficient Ethernet */
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/* Thermal Sensor Register */
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#define E1000_THSTAT 0x08110 /* Thermal Sensor Status */
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/* OS2BMC Registers */
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#define E1000_B2OSPC 0x08FE0 /* BMC2OS packets sent by BMC */
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#define E1000_B2OGPRC 0x04158 /* BMC2OS packets received by host */
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@ -3550,7 +3550,7 @@ static void igb_watchdog_task(struct work_struct *work)
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watchdog_task);
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struct e1000_hw *hw = &adapter->hw;
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struct net_device *netdev = adapter->netdev;
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u32 link;
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u32 link, ctrl_ext, thstat;
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int i;
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link = igb_has_link(adapter);
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@ -3574,6 +3574,25 @@ static void igb_watchdog_task(struct work_struct *work)
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((ctrl & E1000_CTRL_RFCE) ? "RX" :
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((ctrl & E1000_CTRL_TFCE) ? "TX" : "None")));
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/* check for thermal sensor event on i350,
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* copper only */
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if (hw->mac.type == e1000_i350) {
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thstat = rd32(E1000_THSTAT);
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ctrl_ext = rd32(E1000_CTRL_EXT);
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if ((hw->phy.media_type ==
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e1000_media_type_copper) && !(ctrl_ext &
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E1000_CTRL_EXT_LINK_MODE_SGMII)) {
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if (thstat &
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E1000_THSTAT_LINK_THROTTLE) {
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printk(KERN_INFO "igb: %s The "
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"network adapter link "
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"speed was downshifted "
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"because it "
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"overheated.\n",
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netdev->name);
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}
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}
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}
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/* adjust timeout factor according to speed/duplex */
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adapter->tx_timeout_factor = 1;
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switch (adapter->link_speed) {
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@ -3599,6 +3618,22 @@ static void igb_watchdog_task(struct work_struct *work)
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if (netif_carrier_ok(netdev)) {
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adapter->link_speed = 0;
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adapter->link_duplex = 0;
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/* check for thermal sensor event on i350
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* copper only*/
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if (hw->mac.type == e1000_i350) {
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thstat = rd32(E1000_THSTAT);
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ctrl_ext = rd32(E1000_CTRL_EXT);
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if ((hw->phy.media_type ==
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e1000_media_type_copper) && !(ctrl_ext &
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E1000_CTRL_EXT_LINK_MODE_SGMII)) {
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if (thstat & E1000_THSTAT_PWR_DOWN) {
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printk(KERN_ERR "igb: %s The "
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"network adapter was stopped "
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"because it overheated.\n",
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netdev->name);
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}
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}
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}
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/* Links status message must follow this format */
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printk(KERN_INFO "igb: %s NIC Link is Down\n",
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netdev->name);
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