diff options
| -rw-r--r-- | drivers/net/ethernet/ezchip/nps_enet.c | 37 | ||||
| -rw-r--r-- | drivers/net/ethernet/ezchip/nps_enet.h | 20 |
2 files changed, 19 insertions, 38 deletions
diff --git a/drivers/net/ethernet/ezchip/nps_enet.c b/drivers/net/ethernet/ezchip/nps_enet.c index 24a85b292007..63c2bcf8031a 100644 --- a/drivers/net/ethernet/ezchip/nps_enet.c +++ b/drivers/net/ethernet/ezchip/nps_enet.c @@ -150,6 +150,9 @@ static void nps_enet_tx_handler(struct net_device *ndev) if (!priv->tx_packet_sent || tx_ctrl.ct) return; + /* Ack Tx ctrl register */ + nps_enet_reg_set(priv, NPS_ENET_REG_TX_CTL, 0); + /* Check Tx transmit error */ if (unlikely(tx_ctrl.et)) { ndev->stats.tx_errors++; @@ -158,11 +161,7 @@ static void nps_enet_tx_handler(struct net_device *ndev) ndev->stats.tx_bytes += tx_ctrl.nt; } - if (priv->tx_skb) { - dev_kfree_skb(priv->tx_skb); - priv->tx_skb = NULL; - } - + dev_kfree_skb(priv->tx_skb); priv->tx_packet_sent = false; if (netif_queue_stopped(ndev)) @@ -180,15 +179,16 @@ static int nps_enet_poll(struct napi_struct *napi, int budget) { struct net_device *ndev = napi->dev; struct nps_enet_priv *priv = netdev_priv(ndev); - struct nps_enet_buf_int_enable buf_int_enable; u32 work_done; - buf_int_enable.rx_rdy = NPS_ENET_ENABLE; - buf_int_enable.tx_done = NPS_ENET_ENABLE; nps_enet_tx_handler(ndev); work_done = nps_enet_rx_handler(ndev); if (work_done < budget) { + struct nps_enet_buf_int_enable buf_int_enable; + napi_complete(napi); + buf_int_enable.rx_rdy = NPS_ENET_ENABLE; + buf_int_enable.tx_done = NPS_ENET_ENABLE; nps_enet_reg_set(priv, NPS_ENET_REG_BUF_INT_ENABLE, buf_int_enable.value); } @@ -211,12 +211,13 @@ 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); - struct nps_enet_buf_int_cause buf_int_cause; + struct nps_enet_rx_ctl rx_ctrl; + struct nps_enet_tx_ctl tx_ctrl; - buf_int_cause.value = - nps_enet_reg_get(priv, NPS_ENET_REG_BUF_INT_CAUSE); + rx_ctrl.value = nps_enet_reg_get(priv, NPS_ENET_REG_RX_CTL); + tx_ctrl.value = nps_enet_reg_get(priv, NPS_ENET_REG_TX_CTL); - if (buf_int_cause.tx_done || buf_int_cause.rx_rdy) + if ((!tx_ctrl.ct && priv->tx_packet_sent) || 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); @@ -307,11 +308,8 @@ static void nps_enet_hw_enable_control(struct net_device *ndev) /* Discard Packets bigger than max frame length */ max_frame_length = ETH_HLEN + ndev->mtu + ETH_FCS_LEN; - if (max_frame_length <= NPS_ENET_MAX_FRAME_LENGTH) { + if (max_frame_length <= NPS_ENET_MAX_FRAME_LENGTH) ge_mac_cfg_3->max_len = max_frame_length; - nps_enet_reg_set(priv, NPS_ENET_REG_GE_MAC_CFG_3, - ge_mac_cfg_3->value); - } /* Enable interrupts */ buf_int_enable.rx_rdy = NPS_ENET_ENABLE; @@ -339,11 +337,14 @@ static void nps_enet_hw_enable_control(struct net_device *ndev) ge_mac_cfg_0.tx_fc_en = NPS_ENET_ENABLE; ge_mac_cfg_0.rx_fc_en = NPS_ENET_ENABLE; ge_mac_cfg_0.tx_fc_retr = NPS_ENET_GE_MAC_CFG_0_TX_FC_RETR; + ge_mac_cfg_3->cf_drop = NPS_ENET_ENABLE; /* Enable Rx and Tx */ ge_mac_cfg_0.rx_en = NPS_ENET_ENABLE; ge_mac_cfg_0.tx_en = NPS_ENET_ENABLE; + nps_enet_reg_set(priv, NPS_ENET_REG_GE_MAC_CFG_3, + ge_mac_cfg_3->value); nps_enet_reg_set(priv, NPS_ENET_REG_GE_MAC_CFG_0, ge_mac_cfg_0.value); } @@ -527,10 +528,10 @@ static netdev_tx_t nps_enet_start_xmit(struct sk_buff *skb, /* This driver handles one frame at a time */ netif_stop_queue(ndev); - nps_enet_send_frame(ndev, skb); - priv->tx_skb = skb; + nps_enet_send_frame(ndev, skb); + return NETDEV_TX_OK; } diff --git a/drivers/net/ethernet/ezchip/nps_enet.h b/drivers/net/ethernet/ezchip/nps_enet.h index fc45c9daa1c2..6703674d679c 100644 --- a/drivers/net/ethernet/ezchip/nps_enet.h +++ b/drivers/net/ethernet/ezchip/nps_enet.h @@ -36,7 +36,6 @@ #define NPS_ENET_REG_RX_CTL 0x810 #define NPS_ENET_REG_RX_BUF 0x818 #define NPS_ENET_REG_BUF_INT_ENABLE 0x8C0 -#define NPS_ENET_REG_BUF_INT_CAUSE 0x8C4 #define NPS_ENET_REG_GE_MAC_CFG_0 0x1000 #define NPS_ENET_REG_GE_MAC_CFG_1 0x1004 #define NPS_ENET_REG_GE_MAC_CFG_2 0x1008 @@ -108,25 +107,6 @@ struct nps_enet_buf_int_enable { }; }; -/* Interrupt cause for data buffer events register */ -struct nps_enet_buf_int_cause { - union { - /* tx_done: Interrupt in the case when current frame was - * read from TX buffer. - * rx_rdy: Interrupt in the case when new frame is ready - * in RX buffer. - */ - struct { - u32 - __reserved:30, - tx_done:1, - rx_rdy:1; - }; - - u32 value; - }; -}; - /* Gbps Eth MAC Configuration 0 register */ struct nps_enet_ge_mac_cfg_0 { union { |