diff options
Diffstat (limited to 'drivers/net/ethernet/ezchip/nps_enet.c')
-rw-r--r-- | drivers/net/ethernet/ezchip/nps_enet.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/drivers/net/ethernet/ezchip/nps_enet.c b/drivers/net/ethernet/ezchip/nps_enet.c index 9b7a3f5..f928e6f 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); @@ -46,16 +54,17 @@ static void nps_enet_read_rx_fifo(struct net_device *ndev, if (dst_is_aligned) { ioread32_rep(priv->regs_base + NPS_ENET_REG_RX_BUF, reg, len); reg += len; - } - else { /* !dst_is_aligned */ + } else { /* !dst_is_aligned */ for (i = 0; i < len; i++, reg++) { u32 buf = nps_enet_reg_get(priv, NPS_ENET_REG_RX_BUF); + put_unaligned_be32(buf, reg); } } /* copy last bytes (if any) */ if (last) { u32 buf; + ioread32_rep(priv->regs_base + NPS_ENET_REG_RX_BUF, &buf, 1); memcpy((u8 *)reg, &buf, last); } @@ -140,12 +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 */ @@ -183,9 +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); @@ -204,8 +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); } @@ -230,11 +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); @@ -460,7 +462,6 @@ static void nps_enet_set_rx_mode(struct net_device *ndev) | NPS_ENET_ENABLE << CFG_2_DISK_DA_SHIFT; ge_mac_cfg_2_value = (ge_mac_cfg_2_value & ~CFG_2_DISK_MC_MASK) | NPS_ENET_ENABLE << CFG_2_DISK_MC_SHIFT; - } nps_enet_reg_set(priv, NPS_ENET_REG_GE_MAC_CFG_2, ge_mac_cfg_2_value); |