i40e/i40evf: Only track one ITR setting per ring instead of Tx/Rx

The rings are already split out into Tx and Rx rings so it doesn't make
sense to have any single ring store both a Tx and Rx itr_setting value.
Since that is the case drop the pair in favor of storing just a single ITR
value.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

4 files changed, 20 insertions, 21 deletions

diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
index 464200f48d91..291130af2985 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
@@ -1475,14 +1475,14 @@ static inline int get_rx_itr(struct i40e_vsi *vsi, int idx)
 {
 	struct i40evf_adapter *adapter = vsi->back;
 
-	return adapter->rx_rings[idx].rx_itr_setting;
+	return adapter->rx_rings[idx].itr_setting;
 }
 
 static inline int get_tx_itr(struct i40e_vsi *vsi, int idx)
 {
 	struct i40evf_adapter *adapter = vsi->back;
 
-	return adapter->tx_rings[idx].tx_itr_setting;
+	return adapter->tx_rings[idx].itr_setting;
 }
 
 /**
@@ -1503,7 +1503,7 @@ static inline void i40e_update_enable_itr(struct i40e_vsi *vsi,
 	/* avoid dynamic calculation if in countdown mode OR if
 	 * all dynamic is disabled
 	 */
-	rxval = txval = i40e_buildreg_itr(I40E_ITR_NONE, 0);
+	txval = i40e_buildreg_itr(I40E_ITR_NONE, 0);
 
 	rx_itr_setting = get_rx_itr(vsi, idx);
 	tx_itr_setting = get_tx_itr(vsi, idx);
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
index 7798a6645c3f..038ed0e2acb7 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
@@ -362,8 +362,7 @@ struct i40e_ring {
 	 * these values always store the USER setting, and must be converted
 	 * before programming to a register.
 	 */
-	u16 rx_itr_setting;
-	u16 tx_itr_setting;
+	u16 itr_setting;
 
 	u16 count;			/* Number of descriptors */
 	u16 reg_idx;			/* HW register index of the ring */
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c b/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c
index e2d8aa19d205..11dfdc882934 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c
@@ -457,14 +457,14 @@ static int __i40evf_get_coalesce(struct net_device *netdev,
 	rx_ring = &adapter->rx_rings[queue];
 	tx_ring = &adapter->tx_rings[queue];
 
-	if (ITR_IS_DYNAMIC(rx_ring->rx_itr_setting))
+	if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
 		ec->use_adaptive_rx_coalesce = 1;
 
-	if (ITR_IS_DYNAMIC(tx_ring->tx_itr_setting))
+	if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
 		ec->use_adaptive_tx_coalesce = 1;
 
-	ec->rx_coalesce_usecs = rx_ring->rx_itr_setting & ~I40E_ITR_DYNAMIC;
-	ec->tx_coalesce_usecs = tx_ring->tx_itr_setting & ~I40E_ITR_DYNAMIC;
+	ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
+	ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
 
 	return 0;
 }
@@ -519,24 +519,24 @@ static void i40evf_set_itr_per_queue(struct i40evf_adapter *adapter,
 	struct i40e_q_vector *q_vector;
 	u16 vector;
 
-	rx_ring->rx_itr_setting = ec->rx_coalesce_usecs;
-	tx_ring->tx_itr_setting = ec->tx_coalesce_usecs;
+	rx_ring->itr_setting = ec->rx_coalesce_usecs;
+	tx_ring->itr_setting = ec->tx_coalesce_usecs;
 
-	rx_ring->rx_itr_setting |= I40E_ITR_DYNAMIC;
+	rx_ring->itr_setting |= I40E_ITR_DYNAMIC;
 	if (!ec->use_adaptive_rx_coalesce)
-		rx_ring->rx_itr_setting ^= I40E_ITR_DYNAMIC;
+		rx_ring->itr_setting ^= I40E_ITR_DYNAMIC;
 
-	tx_ring->tx_itr_setting |= I40E_ITR_DYNAMIC;
+	tx_ring->itr_setting |= I40E_ITR_DYNAMIC;
 	if (!ec->use_adaptive_tx_coalesce)
-		tx_ring->tx_itr_setting ^= I40E_ITR_DYNAMIC;
+		tx_ring->itr_setting ^= I40E_ITR_DYNAMIC;
 
 	q_vector = rx_ring->q_vector;
-	q_vector->rx.itr = ITR_TO_REG(rx_ring->rx_itr_setting);
+	q_vector->rx.itr = ITR_TO_REG(rx_ring->itr_setting);
 	vector = vsi->base_vector + q_vector->v_idx;
 	wr32(hw, I40E_VFINT_ITRN1(I40E_RX_ITR, vector - 1), q_vector->rx.itr);
 
 	q_vector = tx_ring->q_vector;
-	q_vector->tx.itr = ITR_TO_REG(tx_ring->tx_itr_setting);
+	q_vector->tx.itr = ITR_TO_REG(tx_ring->itr_setting);
 	vector = vsi->base_vector + q_vector->v_idx;
 	wr32(hw, I40E_VFINT_ITRN1(I40E_TX_ITR, vector - 1), q_vector->tx.itr);
 
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 16989ad2ca90..a5fb540c2637 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -354,7 +354,7 @@ i40evf_map_vector_to_rxq(struct i40evf_adapter *adapter, int v_idx, int r_idx)
 	q_vector->rx.ring = rx_ring;
 	q_vector->rx.count++;
 	q_vector->rx.latency_range = I40E_LOW_LATENCY;
-	q_vector->rx.itr = ITR_TO_REG(rx_ring->rx_itr_setting);
+	q_vector->rx.itr = ITR_TO_REG(rx_ring->itr_setting);
 	q_vector->ring_mask |= BIT(r_idx);
 	q_vector->itr_countdown = ITR_COUNTDOWN_START;
 	wr32(hw, I40E_VFINT_ITRN1(I40E_RX_ITR, v_idx - 1), q_vector->rx.itr);
@@ -379,7 +379,7 @@ i40evf_map_vector_to_txq(struct i40evf_adapter *adapter, int v_idx, int t_idx)
 	q_vector->tx.ring = tx_ring;
 	q_vector->tx.count++;
 	q_vector->tx.latency_range = I40E_LOW_LATENCY;
-	q_vector->tx.itr = ITR_TO_REG(tx_ring->tx_itr_setting);
+	q_vector->tx.itr = ITR_TO_REG(tx_ring->itr_setting);
 	q_vector->itr_countdown = ITR_COUNTDOWN_START;
 	q_vector->num_ringpairs++;
 	wr32(hw, I40E_VFINT_ITRN1(I40E_TX_ITR, v_idx - 1), q_vector->tx.itr);
@@ -1169,7 +1169,7 @@ static int i40evf_alloc_queues(struct i40evf_adapter *adapter)
 		tx_ring->netdev = adapter->netdev;
 		tx_ring->dev = &adapter->pdev->dev;
 		tx_ring->count = adapter->tx_desc_count;
-		tx_ring->tx_itr_setting = I40E_ITR_TX_DEF;
+		tx_ring->itr_setting = I40E_ITR_TX_DEF;
 		if (adapter->flags & I40EVF_FLAG_WB_ON_ITR_CAPABLE)
 			tx_ring->flags |= I40E_TXR_FLAGS_WB_ON_ITR;
 
@@ -1178,7 +1178,7 @@ static int i40evf_alloc_queues(struct i40evf_adapter *adapter)
 		rx_ring->netdev = adapter->netdev;
 		rx_ring->dev = &adapter->pdev->dev;
 		rx_ring->count = adapter->rx_desc_count;
-		rx_ring->rx_itr_setting = I40E_ITR_RX_DEF;
+		rx_ring->itr_setting = I40E_ITR_RX_DEF;
 	}
 
 	adapter->num_active_queues = num_active_queues;