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Commit 5d967eb7 authored by Alexander Duyck's avatar Alexander Duyck Committed by Jeff Kirsher
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ixgbe: Correct Adaptive Interrupt Moderation so that it will change values 



This change corrects an issue in which Adaptive Interrupt Moderation was
not changing values due to the fact that we were performing an and
operation on the resultant value that was causing the value to never change
from the default 20K interrupts per second.

Signed-off-by: default avatarAlexander Duyck <alexander.h.duyck@intel.com>
Tested-by: default avatarStephen Ko <stephen.s.ko@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent e954b374

drivers/net/ethernet/intel/ixgbe/ixgbe_main.c

+2 −2
Original line number Diff line number Diff line
@@ -1834,7 +1834,7 @@ void ixgbe_write_eitr(struct ixgbe_q_vector *q_vector) 
	struct ixgbe_adapter *adapter = q_vector->adapter;

	struct ixgbe_hw *hw = &adapter->hw;

	int v_idx = q_vector->v_idx;

	u32 itr_reg = q_vector->itr;

	u32 itr_reg = q_vector->itr & IXGBE_MAX_EITR;



	switch (adapter->hw.mac.type) {

	case ixgbe_mac_82598EB:
@@ -1886,7 +1886,7 @@ static void ixgbe_set_itr(struct ixgbe_q_vector *q_vector) 
			  ((9 * new_itr) + q_vector->itr);



		/* save the algorithm value here */

		q_vector->itr = new_itr & IXGBE_MAX_EITR;

		q_vector->itr = new_itr;



		ixgbe_write_eitr(q_vector);

	}