Re: [net-next PATCH 2/2] drivers: net: cpsw: add separate napi for tx packet handling for performance improvment
From: Francois Romieu <romieu@fr.zoreil.com>
Date: 2015-07-27 21:22:27
Mugunthan V N [off-list ref] : [...]
quoted hunk ↗ jump to hunk
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index d68d759..4f98537 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c@@ -752,13 +753,22 @@ static irqreturn_t cpsw_tx_interrupt(int irq, void *dev_id) struct cpsw_priv *priv = dev_id; cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); - cpdma_chan_process(priv->txch, 128); + writel(0, &priv->wr_regs->tx_en); + + if (netif_running(priv->ndev)) { + napi_schedule(&priv->napi_tx); + return IRQ_HANDLED; + }
cpsw_ndo_stop calls napi_disable: you can remove netif_running. -- Ueimor