Exemple #1
0
static ssize_t gfar_set_rx_stash_index(struct class_device *cdev,
		const char *buf, size_t count)
{
	struct net_device *dev = to_net_dev(cdev);
	struct gfar_private *priv = netdev_priv(dev);
	unsigned short index = simple_strtoul(buf, NULL, 0);
	u32 temp;
	unsigned long flags;

	spin_lock_irqsave(&priv->rxlock, flags);
	if (index > priv->rx_stash_size)
		return count;

	if (index == priv->rx_stash_index)
		return count;

	priv->rx_stash_index = index;

	temp = gfar_read(&priv->regs->attreli);
	temp &= ~ATTRELI_EI_MASK;
	temp |= ATTRELI_EI(index);
	gfar_write(&priv->regs->attreli, flags);

	spin_unlock_irqrestore(&priv->rxlock, flags);

	return count;
}
Exemple #2
0
static ssize_t gfar_set_rx_stash_index(struct device *dev,
				       struct device_attribute *attr,
				       const char *buf, size_t count)
{
	struct gfar_private *priv = netdev_priv(to_net_dev(dev));
	struct gfar __iomem *regs = priv->gfargrp[0].regs;
	unsigned short index = simple_strtoul(buf, NULL, 0);
	u32 temp;
	unsigned long flags;

	if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_BUF_STASHING))
		return count;

	local_irq_save(flags);
	lock_rx_qs(priv);

	if (index > priv->rx_stash_size)
		goto out;

	if (index == priv->rx_stash_index)
		goto out;

	priv->rx_stash_index = index;

	temp = gfar_read(&regs->attreli);
	temp &= ~ATTRELI_EI_MASK;
	temp |= ATTRELI_EI(index);
	gfar_write(&regs->attreli, temp);

out:
	unlock_rx_qs(priv);
	local_irq_restore(flags);

	return count;
}