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-rw-r--r--drivers/net/ethernet/ti/cpsw.c44
1 files changed, 31 insertions, 13 deletions
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 1d923e812a3a..3b81b39bea6f 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -365,7 +365,8 @@ struct cpsw_priv {
spinlock_t lock;
struct platform_device *pdev;
struct net_device *ndev;
- struct napi_struct napi;
+ struct napi_struct napi_rx;
+ struct napi_struct napi_tx;
struct device *dev;
struct cpsw_platform_data data;
struct cpsw_ss_regs __iomem *regs;
@@ -751,13 +752,10 @@ static irqreturn_t cpsw_tx_interrupt(int irq, void *dev_id)
{
struct cpsw_priv *priv = dev_id;
+ writel(0, &priv->wr_regs->tx_en);
cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX);
- cpdma_chan_process(priv->txch, 128);
-
- priv = cpsw_get_slave_priv(priv, 1);
- if (priv)
- cpdma_chan_process(priv->txch, 128);
+ napi_schedule(&priv->napi_tx);
return IRQ_HANDLED;
}
@@ -768,18 +766,35 @@ static irqreturn_t cpsw_rx_interrupt(int irq, void *dev_id)
cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX);
writel(0, &priv->wr_regs->rx_en);
- napi_schedule(&priv->napi);
+ napi_schedule(&priv->napi_rx);
return IRQ_HANDLED;
}
-static int cpsw_poll(struct napi_struct *napi, int budget)
+static int cpsw_tx_poll(struct napi_struct *napi_tx, int budget)
+{
+ struct cpsw_priv *priv = napi_to_priv(napi_tx);
+ int num_tx;
+
+ num_tx = cpdma_chan_process(priv->txch, budget);
+ if (num_tx < budget) {
+ napi_complete(napi_tx);
+ writel(0xff, &priv->wr_regs->tx_en);
+ }
+
+ if (num_tx)
+ cpsw_dbg(priv, intr, "poll %d tx pkts\n", num_tx);
+
+ return num_tx;
+}
+
+static int cpsw_rx_poll(struct napi_struct *napi_rx, int budget)
{
- struct cpsw_priv *priv = napi_to_priv(napi);
+ struct cpsw_priv *priv = napi_to_priv(napi_rx);
int num_rx;
num_rx = cpdma_chan_process(priv->rxch, budget);
if (num_rx < budget) {
- napi_complete(napi);
+ napi_complete(napi_rx);
writel(0xff, &priv->wr_regs->rx_en);
}
@@ -1249,7 +1264,8 @@ static int cpsw_ndo_open(struct net_device *ndev)
/* Enable internal fifo flow control */
writel(0x7, &priv->regs->flow_control);
- napi_enable(&priv_sl0->napi);
+ napi_enable(&priv_sl0->napi_rx);
+ napi_enable(&priv_sl0->napi_tx);
if (WARN_ON(!priv->data.rx_descs))
priv->data.rx_descs = 128;
@@ -1315,7 +1331,8 @@ static int cpsw_ndo_stop(struct net_device *ndev)
if (cpsw_common_res_usage_state(priv) <= 1) {
struct cpsw_priv *priv_sl0 = cpsw_get_slave_priv(priv, 0);
- napi_disable(&priv_sl0->napi);
+ napi_disable(&priv_sl0->napi_rx);
+ napi_disable(&priv_sl0->napi_tx);
cpts_unregister(priv->cpts);
cpsw_intr_disable(priv);
cpdma_ctlr_stop(priv->dma);
@@ -2349,7 +2366,8 @@ static int cpsw_probe(struct platform_device *pdev)
ndev->netdev_ops = &cpsw_netdev_ops;
ndev->ethtool_ops = &cpsw_ethtool_ops;
- netif_napi_add(ndev, &priv->napi, cpsw_poll, CPSW_POLL_WEIGHT);
+ netif_napi_add(ndev, &priv->napi_rx, cpsw_rx_poll, CPSW_POLL_WEIGHT);
+ netif_napi_add(ndev, &priv->napi_tx, cpsw_tx_poll, CPSW_POLL_WEIGHT);
/* register the network device */
SET_NETDEV_DEV(ndev, &pdev->dev);