diff options
| author | Carolyn Wyborny <carolyn.wyborny@intel.com> | 2011-03-12 11:59:47 +0300 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-03-15 08:26:54 +0300 |
| commit | 7ef5ed1ce96c3f9a95b7327279f94b0700c689ef (patch) | |
| tree | e684d2f18bc22e1db178f70cc40f5e12ebed2ab8 /drivers/net/igb | |
| parent | 673b8b70cfae2cd0428a8ab5647571521348549a (diff) | |
| download | linux-7ef5ed1ce96c3f9a95b7327279f94b0700c689ef.tar.xz | |
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>
Diffstat (limited to 'drivers/net/igb')
| -rw-r--r-- | drivers/net/igb/e1000_defines.h | 5 | ||||
| -rw-r--r-- | drivers/net/igb/e1000_regs.h | 3 | ||||
| -rw-r--r-- | drivers/net/igb/igb_main.c | 37 |
3 files changed, 44 insertions, 1 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 5366f2ab65f0..3d850af0cdda 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -3550,7 +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); @@ -3574,6 +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) { @@ -3599,6 +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); |