| /* |
| * This file is based on code from OCTEON SDK by Cavium Networks. |
| * |
| * Copyright (c) 2003-2007 Cavium Networks |
| * |
| * This file is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License, Version 2, as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <asm/octeon/cvmx-fau.h> |
| |
| void cvm_oct_poll_controller(struct net_device *dev); |
| void cvm_oct_rx_initialize(void); |
| void cvm_oct_rx_shutdown(void); |
| |
| static inline void cvm_oct_rx_refill_pool(int fill_threshold) |
| { |
| int number_to_free; |
| int num_freed; |
| /* Refill the packet buffer pool */ |
| number_to_free = |
| cvmx_fau_fetch_and_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, 0); |
| |
| if (number_to_free > fill_threshold) { |
| cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, |
| -number_to_free); |
| num_freed = cvm_oct_mem_fill_fpa(CVMX_FPA_PACKET_POOL, |
| CVMX_FPA_PACKET_POOL_SIZE, |
| number_to_free); |
| if (num_freed != number_to_free) { |
| cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, |
| number_to_free - num_freed); |
| } |
| } |
| } |
