net/wan/fsl_ucc_hdlc: add BQL support (2e7ad56a) · Commits · 戴 / test

drivers/net/wan/fsl_ucc_hdlc.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -391,6 +391,7 @@ static netdev_tx_t ucc_hdlc_tx(struct sk_buff skb, struct net_device dev)
		dev_kfree_skb(skb);
		return -ENOMEM;
		}
		netdev_sent_queue(dev, skb->len);
		spin_lock_irqsave(&priv->lock, flags);

		/* Start from the next BD that should be filled */
		@@ -447,6 +448,8 @@ static int hdlc_tx_done(struct ucc_hdlc_private *priv)
		{
		/* Start from the next BD that should be filled */
		struct net_device *dev = priv->ndev;
		unsigned int bytes_sent = 0;
		int howmany = 0;
		struct qe_bd bd; / BD pointer */
		u16 bd_status;
		int tx_restart = 0;
		@@ -474,6 +477,8 @@ static int hdlc_tx_done(struct ucc_hdlc_private *priv)
		skb = priv->tx_skbuff[priv->skb_dirtytx];
		if (!skb)
		break;
		howmany++;
		bytes_sent += skb->len;
		dev->stats.tx_packets++;
		memset(priv->tx_buffer +
		(be32_to_cpu(bd->buf) - priv->dma_tx_addr),
		@@ -501,6 +506,7 @@ static int hdlc_tx_done(struct ucc_hdlc_private *priv)
		if (tx_restart)
		hdlc_tx_restart(priv);

		netdev_completed_queue(dev, howmany, bytes_sent);
		return 0;
		}

		@@ -721,6 +727,7 @@ static int uhdlc_open(struct net_device *dev)
		priv->hdlc_busy = 1;
		netif_device_attach(priv->ndev);
		napi_enable(&priv->napi);
		netdev_reset_queue(dev);
		netif_start_queue(dev);
		hdlc_open(dev);
		}
		@@ -812,6 +819,7 @@ static int uhdlc_close(struct net_device *dev)

		free_irq(priv->ut_info->uf_info.irq, priv);
		netif_stop_queue(dev);
		netdev_reset_queue(dev);
		priv->hdlc_busy = 0;

		return 0;