From 094f57aafa3c73329f0c887111d2e596b1aee8ba Mon Sep 17 00:00:00 2001 From: Elad Kanfi Date: Wed, 13 Jul 2016 16:58:07 +0300 Subject: net: nps_enet: code reuse Add inline function that checks if there is a pending tx packet. Signed-off-by: Elad Kanfi Signed-off-by: David S. Miller --- drivers/net/ethernet/ezchip/nps_enet.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) (limited to 'drivers/net/ethernet/ezchip') diff --git a/drivers/net/ethernet/ezchip/nps_enet.c b/drivers/net/ethernet/ezchip/nps_enet.c index b182e2a4ecb7..25faa3dca9c0 100644 --- a/drivers/net/ethernet/ezchip/nps_enet.c +++ b/drivers/net/ethernet/ezchip/nps_enet.c @@ -24,6 +24,14 @@ #define DRV_NAME "nps_mgt_enet" +static inline bool nps_enet_is_tx_pending(struct nps_enet_priv *priv) +{ + u32 tx_ctrl_value = nps_enet_reg_get(priv, NPS_ENET_REG_TX_CTL); + u32 tx_ctrl_ct = (tx_ctrl_value & TX_CTL_CT_MASK) >> TX_CTL_CT_SHIFT; + + return (!tx_ctrl_ct && priv->tx_skb); +} + static void nps_enet_clean_rx_fifo(struct net_device *ndev, u32 frame_len) { struct nps_enet_priv *priv = netdev_priv(ndev); @@ -141,12 +149,11 @@ static void nps_enet_tx_handler(struct net_device *ndev) { struct nps_enet_priv *priv = netdev_priv(ndev); u32 tx_ctrl_value = nps_enet_reg_get(priv, NPS_ENET_REG_TX_CTL); - u32 tx_ctrl_ct = (tx_ctrl_value & TX_CTL_CT_MASK) >> TX_CTL_CT_SHIFT; u32 tx_ctrl_et = (tx_ctrl_value & TX_CTL_ET_MASK) >> TX_CTL_ET_SHIFT; u32 tx_ctrl_nt = (tx_ctrl_value & TX_CTL_NT_MASK) >> TX_CTL_NT_SHIFT; /* Check if we got TX */ - if (!priv->tx_skb || tx_ctrl_ct) + if (!nps_enet_is_tx_pending(priv)) return; /* Ack Tx ctrl register */ @@ -184,9 +191,6 @@ static int nps_enet_poll(struct napi_struct *napi, int budget) work_done = nps_enet_rx_handler(ndev); if (work_done < budget) { u32 buf_int_enable_value = 0; - u32 tx_ctrl_value = nps_enet_reg_get(priv, NPS_ENET_REG_TX_CTL); - u32 tx_ctrl_ct = - (tx_ctrl_value & TX_CTL_CT_MASK) >> TX_CTL_CT_SHIFT; napi_complete(napi); @@ -205,8 +209,7 @@ static int nps_enet_poll(struct napi_struct *napi, int budget) * the two code lines below will solve this situation by * re-adding ourselves to the poll list. */ - - if (priv->tx_skb && !tx_ctrl_ct) { + if (nps_enet_is_tx_pending(priv)) { nps_enet_reg_set(priv, NPS_ENET_REG_BUF_INT_ENABLE, 0); napi_reschedule(napi); } @@ -231,11 +234,9 @@ static irqreturn_t nps_enet_irq_handler(s32 irq, void *dev_instance) struct net_device *ndev = dev_instance; struct nps_enet_priv *priv = netdev_priv(ndev); u32 rx_ctrl_value = nps_enet_reg_get(priv, NPS_ENET_REG_RX_CTL); - u32 tx_ctrl_value = nps_enet_reg_get(priv, NPS_ENET_REG_TX_CTL); - u32 tx_ctrl_ct = (tx_ctrl_value & TX_CTL_CT_MASK) >> TX_CTL_CT_SHIFT; u32 rx_ctrl_cr = (rx_ctrl_value & RX_CTL_CR_MASK) >> RX_CTL_CR_SHIFT; - if ((!tx_ctrl_ct && priv->tx_skb) || rx_ctrl_cr) + if (nps_enet_is_tx_pending(priv) || rx_ctrl_cr) if (likely(napi_schedule_prep(&priv->napi))) { nps_enet_reg_set(priv, NPS_ENET_REG_BUF_INT_ENABLE, 0); __napi_schedule(&priv->napi); -- cgit v1.2.3-59-g8ed1b