-
- irqreturn_t retval = IRQ_NONE;
- uint64_t interruptFlags;
-
- if (irq == dev->irq) {
- pr_debug("%s:%s(): irq %d for device\n",
- dev->name, __FUNCTION__, irq);
-
- retval = IRQ_HANDLED;
-
- interruptFlags =
- inl(mipsnet_reg_address(dev, interruptControl));
- pr_debug("%s:%s(): intCtl=0x%016llx\n", dev->name,
- __FUNCTION__, interruptFlags);
-
- if (interruptFlags & MIPSNET_INTCTL_TXDONE) {
- pr_debug("%s:%s(): got TXDone\n",
- dev->name, __FUNCTION__);
- outl(MIPSNET_INTCTL_TXDONE,
- mipsnet_reg_address(dev, interruptControl));
- // only one packet at a time, we are done.
- netif_wake_queue(dev);
- } else if (interruptFlags & MIPSNET_INTCTL_RXDONE) {
- pr_debug("%s:%s(): got RX data\n",
- dev->name, __FUNCTION__);
- mipsnet_get_fromdev(dev,
- inl(mipsnet_reg_address(dev, rxDataCount)));
- pr_debug("%s:%s(): clearing RX int\n",
- dev->name, __FUNCTION__);
- outl(MIPSNET_INTCTL_RXDONE,
- mipsnet_reg_address(dev, interruptControl));
-
- } else if (interruptFlags & MIPSNET_INTCTL_TESTBIT) {
- pr_debug("%s:%s(): got test interrupt\n",
- dev->name, __FUNCTION__);
- // TESTBIT is cleared on read.
- // And takes effect after a write with 0
- outl(0, mipsnet_reg_address(dev, interruptControl));
- } else {
- pr_debug("%s:%s(): no valid fags 0x%016llx\n",
- dev->name, __FUNCTION__, interruptFlags);
- // Maybe shared IRQ, just ignore, no clearing.
- retval = IRQ_NONE;
- }
-
- } else {
- printk(KERN_INFO "%s: %s(): irq %d for unknown device\n",
- dev->name, __FUNCTION__, irq);
- retval = IRQ_NONE;
+ u32 int_flags;
+ irqreturn_t ret = IRQ_NONE;
+
+ if (irq != dev->irq)
+ goto out_badirq;
+
+ /* TESTBIT is cleared on read. */
+ int_flags = inl(regaddr(dev, interruptControl));
+ if (int_flags & MIPSNET_INTCTL_TESTBIT) {
+ /* TESTBIT takes effect after a write with 0. */
+ outl(0, regaddr(dev, interruptControl));
+ ret = IRQ_HANDLED;
+ } else if (int_flags & MIPSNET_INTCTL_TXDONE) {
+ /* Only one packet at a time, we are done. */
+ dev->stats.tx_packets++;
+ netif_wake_queue(dev);
+ outl(MIPSNET_INTCTL_TXDONE,
+ regaddr(dev, interruptControl));
+ ret = IRQ_HANDLED;
+ } else if (int_flags & MIPSNET_INTCTL_RXDONE) {
+ mipsnet_get_fromdev(dev, inl(regaddr(dev, rxDataCount)));
+ outl(MIPSNET_INTCTL_RXDONE, regaddr(dev, interruptControl));
+ ret = IRQ_HANDLED;