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authorAndy Gospodarek <andy@greyhouse.net>2008-08-27 18:04:32 -0700
committerJeff Garzik <jgarzik@redhat.com>2008-09-03 09:26:18 -0400
commit15e79f24b60c4b0bf8019423bda4e03a576b02f2 (patch)
tree980b5cacf4d2fa948a9277172d5845baf9b077b8 /drivers
parente000ea13123a28108cff2d6b9856b414dfdcd1fa (diff)
ixgbe: initialize interrupt throttle rate
This commit dropped the setting of the default interrupt throttle rate. commit 021230d40ae0e6508d6c717b6e0d6d81cd77ac25 Author: Ayyappan Veeraiyan <ayyappan.veeraiyan@intel.com> 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 <andy@greyhouse.net> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> CC: stable@kernel.org [2.6.25 and later] Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ixgbe/ixgbe_main.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 53f41b649f0..a417be7f8be 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -2304,6 +2304,12 @@ static int __devinit ixgbe_set_interrupt_capability(struct ixgbe_adapter
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