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authorAuke Kok <auke-jan.h.kok@intel.com>2008-08-04 17:21:20 -0700
committerJeff Garzik <jgarzik@redhat.com>2008-08-07 01:54:50 -0400
commit10aa4c0447c308738dade244e23036f2fcbfb140 (patch)
treeca9c8d22df5bc2e63556e1dfa3dacabc8f4a07a8
parent44defeb3f6f98ea9bb48a2fe6eb9004e9e1a49a1 (diff)
e1000e: perform basic 82573 EEPROM checks for known issues
82573 EEPROMs have been shipped out with known issues. While most people will never see the issues some people do and we know how to address them. Warn the user if we find one of these EEPROM issues. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
-rw-r--r--drivers/net/e1000e/netdev.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 378335f2b23..589e54246ad 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -4177,6 +4177,28 @@ static void e1000_print_device_info(struct e1000_adapter *adapter)
hw->mac.type, hw->phy.type, (pba_num >> 8), (pba_num & 0xff));
}
+static void e1000_eeprom_checks(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ int ret_val;
+ u16 buf = 0;
+
+ if (hw->mac.type != e1000_82573)
+ return;
+
+ ret_val = e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &buf);
+ if (!(le16_to_cpu(buf) & (1 << 0))) {
+ /* Deep Smart Power Down (DSPD) */
+ e_warn("Warning: detected DSPD enabled in EEPROM\n");
+ }
+
+ ret_val = e1000_read_nvm(hw, NVM_INIT_3GIO_3, 1, &buf);
+ if (le16_to_cpu(buf) & (3 << 2)) {
+ /* ASPM enable */
+ e_warn("Warning: detected ASPM enabled in EEPROM\n");
+ }
+}
+
/**
* e1000e_is_need_ioport - determine if an adapter needs ioport resources or not
* @pdev: PCI device information struct
@@ -4400,6 +4422,8 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
}
}
+ e1000_eeprom_checks(adapter);
+
/* copy the MAC address out of the NVM */
if (e1000e_read_mac_addr(&adapter->hw))
e_err("NVM Read Error while reading MAC address\n");