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igb: Use rx/tx_itr_setting when setting up initial value of itr 

It turns out that the InterruptThrottleRate module parameter was only
having the effect of locking the ITR at the starting ITR value. This was
because the values stored in rx_itr_setting and tx_itr_setting were being
ignored when configuring the initial itr_val of the q_vector.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Alexander Duyck 2013-02-12 02:31:01 +00:00 committed by Jeff Kirsher
parent b646c22ede
commit 4e22766758
1 changed files with 11 additions and 0 deletions
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11
drivers/net/ethernet/intel/igb/igb_main.c
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@ -1179,6 +1179,17 @@ static int igb_alloc_q_vector(struct igb_adapter *adapter,
/* initialize pointer to rings */
ring = q_vector->ring;
/* intialize ITR */
if (rxr_count) {
/* rx or rx/tx vector */
if (!adapter->rx_itr_setting || adapter->rx_itr_setting > 3)
q_vector->itr_val = adapter->rx_itr_setting;
} else {
/* tx only vector */
if (!adapter->tx_itr_setting || adapter->tx_itr_setting > 3)
q_vector->itr_val = adapter->tx_itr_setting;
}
if (txr_count) {
/* assign generic ring traits */
ring->dev = &adapter->pdev->dev;