From 3c234c4709529298498b597bcff35f56ac866a99 Mon Sep 17 00:00:00 2001 From: Carolyn Wyborny Date: Mon, 12 Dec 2016 15:44:12 -0800 Subject: [PATCH] i40e: Fix Adaptive ITR enabling This patch fixes a bug introduced with the addition of the per queue ITR feature support in ethtool. With that addition, there were functions added which converted the ITR settings to binary values. The IS_ENABLED macros that run on those values check whether a bit is set or not and with the value being binary, the bit check always returned ITR disabled which prevents any updating of the ITR rate. This patch fixes the problem by changing the functions to return the current ITR value instead and renaming it to better reflect its function. These functions now provide a value which will be accurately asessed and update the ITR as intended. Change-ID: I14f1d088d052e27f652aaa3113e186415ddea1fc Signed-off-by: Carolyn Wyborny Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_txrx.c | 12 ++++++------ drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 12 ++++++------ 2 files changed, 12 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index 09f09ea7a5e5..4dc993bb16bf 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -1864,14 +1864,14 @@ static u32 i40e_buildreg_itr(const int type, const u16 itr) /* a small macro to shorten up some long lines */ #define INTREG I40E_PFINT_DYN_CTLN -static inline int get_rx_itr_enabled(struct i40e_vsi *vsi, int idx) +static inline int get_rx_itr(struct i40e_vsi *vsi, int idx) { - return !!(vsi->rx_rings[idx]->rx_itr_setting); + return vsi->rx_rings[idx]->rx_itr_setting; } -static inline int get_tx_itr_enabled(struct i40e_vsi *vsi, int idx) +static inline int get_tx_itr(struct i40e_vsi *vsi, int idx) { - return !!(vsi->tx_rings[idx]->tx_itr_setting); + return vsi->tx_rings[idx]->tx_itr_setting; } /** @@ -1897,8 +1897,8 @@ static inline void i40e_update_enable_itr(struct i40e_vsi *vsi, */ rxval = txval = i40e_buildreg_itr(I40E_ITR_NONE, 0); - rx_itr_setting = get_rx_itr_enabled(vsi, idx); - tx_itr_setting = get_tx_itr_enabled(vsi, idx); + rx_itr_setting = get_rx_itr(vsi, idx); + tx_itr_setting = get_tx_itr(vsi, idx); if (q_vector->itr_countdown > 0 || (!ITR_IS_DYNAMIC(rx_itr_setting) && diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c index b758846d4dc5..7cd28ef6e714 100644 --- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c @@ -1324,18 +1324,18 @@ static u32 i40e_buildreg_itr(const int type, const u16 itr) /* a small macro to shorten up some long lines */ #define INTREG I40E_VFINT_DYN_CTLN1 -static inline int get_rx_itr_enabled(struct i40e_vsi *vsi, int idx) +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].rx_itr_setting; } -static inline int get_tx_itr_enabled(struct i40e_vsi *vsi, int idx) +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].tx_itr_setting; } /** @@ -1361,8 +1361,8 @@ static inline void i40e_update_enable_itr(struct i40e_vsi *vsi, */ rxval = txval = i40e_buildreg_itr(I40E_ITR_NONE, 0); - rx_itr_setting = get_rx_itr_enabled(vsi, idx); - tx_itr_setting = get_tx_itr_enabled(vsi, idx); + rx_itr_setting = get_rx_itr(vsi, idx); + tx_itr_setting = get_tx_itr(vsi, idx); if (q_vector->itr_countdown > 0 || (!ITR_IS_DYNAMIC(rx_itr_setting) && -- 2.20.1