Ejemplos de ag71xx_add_ar8216_header en C++ (Cpp)

Ejemplo n.º 1

Archivo: ag71xx_main.c Proyecto: mirko/openwrt-x-burst

static int ag71xx_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
	struct ag71xx *ag = netdev_priv(dev);
	struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
	struct ag71xx_ring *ring = &ag->tx_ring;
	struct ag71xx_desc *desc;
	unsigned long flags;
	int i;

	i = ring->curr % AG71XX_TX_RING_SIZE;
	desc = &ring->descs[i];

	spin_lock_irqsave(&ag->lock, flags);
	pdata->ddr_flush();
	spin_unlock_irqrestore(&ag->lock, flags);

	if (!ag71xx_desc_empty(desc))
		goto err_drop;

	ag71xx_add_ar8216_header(ag, skb);

	if (skb->len <= 0) {
		DBG("%s: packet len is too small\n", ag->dev->name);
		goto err_drop;
	}

	dma_map_single(NULL, skb->data, skb->len, DMA_TO_DEVICE);

	ring->buf[i].skb = skb;

	/* setup descriptor fields */
	desc->data = virt_to_phys(skb->data);
	desc->ctrl = (skb->len & DESC_PKTLEN_M);

	/* flush descriptor */
	wmb();

	ring->curr++;
	if (ring->curr == (ring->dirty + AG71XX_TX_THRES_STOP)) {
		DBG("%s: tx queue full\n", ag->dev->name);
		netif_stop_queue(dev);
	}

	DBG("%s: packet injected into TX queue\n", ag->dev->name);

	/* enable TX engine */
	ag71xx_wr(ag, AG71XX_REG_TX_CTRL, TX_CTRL_TXE);

	dev->trans_start = jiffies;

	return 0;

 err_drop:
	dev->stats.tx_dropped++;

	dev_kfree_skb(skb);
	return 0;
}

Ejemplo n.º 2

Archivo: ag71xx_main.c Proyecto: alicemirror/EA3250

static netdev_tx_t ag71xx_hard_start_xmit(struct sk_buff *skb,
					  struct net_device *dev)
{
	struct ag71xx *ag = netdev_priv(dev);
	struct ag71xx_ring *ring = &ag->tx_ring;
	struct ag71xx_desc *desc;
	dma_addr_t dma_addr;
	int i;

	i = ring->curr % AG71XX_TX_RING_SIZE;
	desc = ring->buf[i].desc;

	if (!ag71xx_desc_empty(desc))
		goto err_drop;

	if (ag71xx_has_ar8216(ag))
		ag71xx_add_ar8216_header(ag, skb);

	if (skb->len <= 0) {
		DBG("%s: packet len is too small\n", ag->dev->name);
		goto err_drop;
	}

	dma_addr = dma_map_single(&dev->dev, skb->data, skb->len,
				  DMA_TO_DEVICE);

	ring->buf[i].skb = skb;

	/* setup descriptor fields */
	desc->data = (u32) dma_addr;
	desc->ctrl = (skb->len & DESC_PKTLEN_M);

	/* flush descriptor */
	wmb();

	ring->curr++;
	if (ring->curr == (ring->dirty + AG71XX_TX_THRES_STOP)) {
		DBG("%s: tx queue full\n", ag->dev->name);
		netif_stop_queue(dev);
	}

	DBG("%s: packet injected into TX queue\n", ag->dev->name);

	/* enable TX engine */
	ag71xx_wr(ag, AG71XX_REG_TX_CTRL, TX_CTRL_TXE);

	return NETDEV_TX_OK;

 err_drop:
	dev->stats.tx_dropped++;

	dev_kfree_skb(skb);
	return NETDEV_TX_OK;
}