static irqreturn_t ilo_isr(int irq, void *data)
{
	struct ilo_hwinfo *hw = data;
	int pending, i;

	spin_lock(&hw->alloc_lock);

	/* check for ccbs which have data */
	pending = get_device_outbound(hw);
	if (!pending) {
		spin_unlock(&hw->alloc_lock);
		return IRQ_NONE;
	}

	if (is_db_reset(pending)) {
		/* wake up all ccbs if the device was reset */
		pending = -1;
		ilo_set_reset(hw);
	}

	for (i = 0; i < MAX_CCB; i++) {
		if (!hw->ccb_alloc[i])
			continue;
		if (pending & (1 << i))
			wake_up_interruptible(&hw->ccb_alloc[i]->ccb_waitq);
	}

	/* clear the device of the channels that have been handled */
	clear_pending_db(hw, pending);

	spin_unlock(&hw->alloc_lock);

	return IRQ_HANDLED;
}
示例#2
0
static irqreturn_t ilo_isr(int irq, void *data)
{
	struct ilo_hwinfo *hw = data;
	int pending, i;

	spin_lock(&hw->alloc_lock);

	/*                                */
	pending = get_device_outbound(hw);
	if (!pending) {
		spin_unlock(&hw->alloc_lock);
		return IRQ_NONE;
	}

	if (is_db_reset(pending)) {
		/*                                          */
		pending = -1;
		ilo_set_reset(hw);
	}

	for (i = 0; i < MAX_CCB; i++) {
		if (!hw->ccb_alloc[i])
			continue;
		if (pending & (1 << i))
			wake_up_interruptible(&hw->ccb_alloc[i]->ccb_waitq);
	}

	/*                                                         */
	clear_pending_db(hw, pending);

	spin_unlock(&hw->alloc_lock);

	return IRQ_HANDLED;
}
static inline int is_device_reset(struct ilo_hwinfo *hw)
{
	/* check for global reset condition */
	return is_db_reset(get_device_outbound(hw));
}
示例#4
0
static inline int is_device_reset(struct ilo_hwinfo *hw)
{
	/*                                  */
	return is_db_reset(get_device_outbound(hw));
}