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authorBruce Allan <bruce.w.allan@intel.com>2010-05-10 19:00:10 +0400
committerDavid S. Miller <davem@davemloft.net>2010-05-13 10:31:10 +0400
commit52a9b2319628e2cbbff7abc4f1092f4597c75a4f (patch)
tree5525dad84de0e06c46ca310ac62be3f1e4981b1e /drivers/net/e1000e
parentcd791618c28f524598bcfa941d948b1126a2394a (diff)
downloadlinux-52a9b2319628e2cbbff7abc4f1092f4597c75a4f.tar.xz
e1000e: s/w initiated LSC MSI-X interrupts not generated; no transmit
In MSI-X mode when an IMPI SoL session was active (i.e. the PHY reset was blocked), the LSC interrupt generated by s/w to start the watchdog which started the transmitter was not getting fired by the hardware because bit 24 (the 'other' cause bit) also needed to be set. Without an active SoL session, the PHY was reset which caused the h/w to fire the LSC interrupt. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/e1000e')
-rw-r--r--drivers/net/e1000e/netdev.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 36473e6d07d6..16a03c553299 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -3220,7 +3220,11 @@ int e1000e_up(struct e1000_adapter *adapter)
netif_wake_queue(adapter->netdev);
/* fire a link change interrupt to start the watchdog */
- ew32(ICS, E1000_ICS_LSC);
+ if (adapter->msix_entries)
+ ew32(ICS, E1000_ICS_LSC | E1000_ICR_OTHER);
+ else
+ ew32(ICS, E1000_ICS_LSC);
+
return 0;
}
@@ -3537,7 +3541,10 @@ static int e1000_open(struct net_device *netdev)
pm_runtime_put(&pdev->dev);
/* fire a link status change interrupt to start the watchdog */
- ew32(ICS, E1000_ICS_LSC);
+ if (adapter->msix_entries)
+ ew32(ICS, E1000_ICS_LSC | E1000_ICR_OTHER);
+ else
+ ew32(ICS, E1000_ICS_LSC);
return 0;