From: Bruce Allan Date: Mon, 10 May 2010 15:00:10 +0000 (+0000) Subject: e1000e: s/w initiated LSC MSI-X interrupts not generated; no transmit X-Git-Tag: v2.6.35-rc1~473^2~139 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=52a9b2319628e2cbbff7abc4f1092f4597c75a4f;p=~shefty%2Frdma-dev.git 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 Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index 36473e6d07d..16a03c55329 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;