1/*
2 * This file is based on code from OCTEON SDK by Cavium Networks.
3 *
4 * Copyright (c) 2003-2007 Cavium Networks
5 *
6 * This file is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License, Version 2, as
8 * published by the Free Software Foundation.
9 */
10
11#include <asm/octeon/cvmx-fau.h>
12
13void cvm_oct_poll_controller(struct net_device *dev);
14void cvm_oct_rx_initialize(void);
15void cvm_oct_rx_shutdown(void);
16
17static inline void cvm_oct_rx_refill_pool(int fill_threshold)
18{
19	int number_to_free;
20	int num_freed;
21	/* Refill the packet buffer pool */
22	number_to_free =
23		cvmx_fau_fetch_and_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, 0);
24
25	if (number_to_free > fill_threshold) {
26		cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE,
27				      -number_to_free);
28		num_freed = cvm_oct_mem_fill_fpa(CVMX_FPA_PACKET_POOL,
29						 CVMX_FPA_PACKET_POOL_SIZE,
30						 number_to_free);
31		if (num_freed != number_to_free) {
32			cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE,
33					number_to_free - num_freed);
34		}
35	}
36}
37