1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * This file is based on code from OCTEON SDK by Cavium Networks.
 4 *
 5 * Copyright (c) 2003-2007 Cavium Networks
 6 */
 7
 8void cvm_oct_poll_controller(struct net_device *dev);
 9void cvm_oct_rx_initialize(void);
10void cvm_oct_rx_shutdown(void);
11
12static inline void cvm_oct_rx_refill_pool(int fill_threshold)
13{
14	int number_to_free;
15	int num_freed;
16	/* Refill the packet buffer pool */
17	number_to_free =
18		cvmx_fau_fetch_and_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, 0);
19
20	if (number_to_free > fill_threshold) {
21		cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE,
22				      -number_to_free);
23		num_freed = cvm_oct_mem_fill_fpa(CVMX_FPA_PACKET_POOL,
24						 CVMX_FPA_PACKET_POOL_SIZE,
25						 number_to_free);
26		if (num_freed != number_to_free) {
27			cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE,
28					      number_to_free - num_freed);
29		}
30	}
31}