2.6.26-stable review patch. If anyone has any objections, please let us know. ------------------ From: Andy Gospodarek commit 15e79f24b60c4b0bf8019423bda4e03a576b02f2 upstream This commit dropped the setting of the default interrupt throttle rate. commit 021230d40ae0e6508d6c717b6e0d6d81cd77ac25 Author: Ayyappan Veeraiyan Date: Mon Mar 3 15:03:45 2008 -0800 ixgbe: Introduce MSI-X queue vector code The following patch adds it back. Without this the default value of 0 causes the performance of this card to be awful. Restoring these to the default values yields much better performance. This regression has been around since 2.6.25. Signed-off-by: Andy Gospodarek Acked-by: Jesse Brandeburg Signed-off-by: Jeff Kirsher Signed-off-by: Jeff Garzik Signed-off-by: Greg Kroah-Hartman --- drivers/net/ixgbe/ixgbe_main.c | 6 ++++++ 1 file changed, 6 insertions(+) --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -2258,6 +2258,12 @@ static int __devinit ixgbe_set_interrupt int vector, v_budget; /* + * Set the default interrupt throttle rate. + */ + adapter->rx_eitr = (1000000 / IXGBE_DEFAULT_ITR_RX_USECS); + adapter->tx_eitr = (1000000 / IXGBE_DEFAULT_ITR_TX_USECS); + + /* * It's easy to be greedy for MSI-X vectors, but it really * doesn't do us much good if we have a lot more vectors * than CPU's. So let's be conservative and only ask for -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/