/*
* We do not use Tx completion interrupts to free DMAd Tx packets.
- * This is good for performamce but means that we rely on new Tx
+ * This is good for performance but means that we rely on new Tx
* packets arriving to run the destructors of completed packets,
* which open up space in their sockets' send queues. Sometimes
* we do not get such new packets causing Tx to stall. A single