[Intel-wired-lan] [next PATCH S84-V2 04/13] i40e/i40evf: Use ring pointers to clean up _set_itr_per_queue
Alice Michael
alice.michael at intel.com
Wed Dec 27 13:15:51 UTC 2017
From: Alexander Duyck <alexander.h.duyck at intel.com>
This change cleans up the i40e/i40evf_set_itr_per_queue function by
dropping all the unneeded pointer chases. Instead we can just pull out the
pointers for the Tx and Rx rings and use them throughout the function.
Signed-off-by: Alexander Duyck <alexander.h.duyck at intel.com>
---
drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 22 +++++++++--------
drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c | 28 +++++++++++-----------
2 files changed, 26 insertions(+), 24 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 099b170..79c752a 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -2305,6 +2305,8 @@ static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
struct ethtool_coalesce *ec,
int queue)
{
+ struct i40e_ring *rx_ring = vsi->rx_rings[queue];
+ struct i40e_ring *tx_ring = vsi->tx_rings[queue];
struct i40e_pf *pf = vsi->back;
struct i40e_hw *hw = &pf->hw;
struct i40e_q_vector *q_vector;
@@ -2312,26 +2314,26 @@ static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);
- vsi->rx_rings[queue]->rx_itr_setting = ec->rx_coalesce_usecs;
- vsi->tx_rings[queue]->tx_itr_setting = ec->tx_coalesce_usecs;
+ rx_ring->rx_itr_setting = ec->rx_coalesce_usecs;
+ tx_ring->tx_itr_setting = ec->tx_coalesce_usecs;
if (ec->use_adaptive_rx_coalesce)
- vsi->rx_rings[queue]->rx_itr_setting |= I40E_ITR_DYNAMIC;
+ rx_ring->rx_itr_setting |= I40E_ITR_DYNAMIC;
else
- vsi->rx_rings[queue]->rx_itr_setting &= ~I40E_ITR_DYNAMIC;
+ rx_ring->rx_itr_setting &= ~I40E_ITR_DYNAMIC;
if (ec->use_adaptive_tx_coalesce)
- vsi->tx_rings[queue]->tx_itr_setting |= I40E_ITR_DYNAMIC;
+ tx_ring->tx_itr_setting |= I40E_ITR_DYNAMIC;
else
- vsi->tx_rings[queue]->tx_itr_setting &= ~I40E_ITR_DYNAMIC;
+ tx_ring->tx_itr_setting &= ~I40E_ITR_DYNAMIC;
- q_vector = vsi->rx_rings[queue]->q_vector;
- q_vector->rx.itr = ITR_TO_REG(vsi->rx_rings[queue]->rx_itr_setting);
+ q_vector = rx_ring->q_vector;
+ q_vector->rx.itr = ITR_TO_REG(rx_ring->rx_itr_setting);
vector = vsi->base_vector + q_vector->v_idx;
wr32(hw, I40E_PFINT_ITRN(I40E_RX_ITR, vector - 1), q_vector->rx.itr);
- q_vector = vsi->tx_rings[queue]->q_vector;
- q_vector->tx.itr = ITR_TO_REG(vsi->tx_rings[queue]->tx_itr_setting);
+ q_vector = tx_ring->q_vector;
+ q_vector->tx.itr = ITR_TO_REG(tx_ring->tx_itr_setting);
vector = vsi->base_vector + q_vector->v_idx;
wr32(hw, I40E_PFINT_ITRN(I40E_TX_ITR, vector - 1), q_vector->tx.itr);
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c b/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c
index da006fa..e2d8aa1 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c
@@ -512,31 +512,31 @@ static void i40evf_set_itr_per_queue(struct i40evf_adapter *adapter,
struct ethtool_coalesce *ec,
int queue)
{
+ struct i40e_ring *rx_ring = &adapter->rx_rings[queue];
+ struct i40e_ring *tx_ring = &adapter->tx_rings[queue];
struct i40e_vsi *vsi = &adapter->vsi;
struct i40e_hw *hw = &adapter->hw;
struct i40e_q_vector *q_vector;
u16 vector;
- adapter->rx_rings[queue].rx_itr_setting = ec->rx_coalesce_usecs;
- adapter->tx_rings[queue].tx_itr_setting = ec->tx_coalesce_usecs;
+ rx_ring->rx_itr_setting = ec->rx_coalesce_usecs;
+ tx_ring->tx_itr_setting = ec->tx_coalesce_usecs;
- if (ec->use_adaptive_rx_coalesce)
- adapter->rx_rings[queue].rx_itr_setting |= I40E_ITR_DYNAMIC;
- else
- adapter->rx_rings[queue].rx_itr_setting &= ~I40E_ITR_DYNAMIC;
+ rx_ring->rx_itr_setting |= I40E_ITR_DYNAMIC;
+ if (!ec->use_adaptive_rx_coalesce)
+ rx_ring->rx_itr_setting ^= I40E_ITR_DYNAMIC;
- if (ec->use_adaptive_tx_coalesce)
- adapter->tx_rings[queue].tx_itr_setting |= I40E_ITR_DYNAMIC;
- else
- adapter->tx_rings[queue].tx_itr_setting &= ~I40E_ITR_DYNAMIC;
+ tx_ring->tx_itr_setting |= I40E_ITR_DYNAMIC;
+ if (!ec->use_adaptive_tx_coalesce)
+ tx_ring->tx_itr_setting ^= I40E_ITR_DYNAMIC;
- q_vector = adapter->rx_rings[queue].q_vector;
- q_vector->rx.itr = ITR_TO_REG(adapter->rx_rings[queue].rx_itr_setting);
+ q_vector = rx_ring->q_vector;
+ q_vector->rx.itr = ITR_TO_REG(rx_ring->rx_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 = adapter->tx_rings[queue].q_vector;
- q_vector->tx.itr = ITR_TO_REG(adapter->tx_rings[queue].tx_itr_setting);
+ q_vector = tx_ring->q_vector;
+ q_vector->tx.itr = ITR_TO_REG(tx_ring->tx_itr_setting);
vector = vsi->base_vector + q_vector->v_idx;
wr32(hw, I40E_VFINT_ITRN1(I40E_TX_ITR, vector - 1), q_vector->tx.itr);
--
2.9.5
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