ixgbe: initialize interrupt throttle rate
This commit dropped the setting of the default interrupt throttle rate.
commit 021230d40a
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>
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@ -2303,6 +2303,12 @@ static int __devinit ixgbe_set_interrupt_capability(struct ixgbe_adapter
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int err = 0;
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int vector, v_budget;
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/*
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* Set the default interrupt throttle rate.
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*/
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adapter->rx_eitr = (1000000 / IXGBE_DEFAULT_ITR_RX_USECS);
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adapter->tx_eitr = (1000000 / IXGBE_DEFAULT_ITR_TX_USECS);
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/*
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* It's easy to be greedy for MSI-X vectors, but it really
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* doesn't do us much good if we have a lot more vectors
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