Title: eth_buffree()


eth_buffree(priority) is called by bf_memreq() if bf_memreq() does not have enough accessors to satisfy a buffer request.

priority, eth_buffree()'s only parameter, will be either ETH_PRI_FDBUFS_EXTRA (#define'd as 5) or ETH_PRI_FDBUFS (6). If priority is ETH_PRI_FDBUFS_EXTRA, every packet except the last packet in the read queue of each ethernet file descriptor is freed. If priority is ETH_PRI_FDBUFS_EXTRA, all packets in the read queues of all ethernet file descriptors are freed.