1/********************************************************************* 2 * Author: Cavium Networks 3 * 4 * Contact: support@caviumnetworks.com 5 * This file is part of the OCTEON SDK 6 * 7 * Copyright (c) 2003-2007 Cavium Networks 8 * 9 * This file is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License, Version 2, as 11 * published by the Free Software Foundation. 12 * 13 * This file is distributed in the hope that it will be useful, but 14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty 15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or 16 * NONINFRINGEMENT. See the GNU General Public License for more 17 * details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this file; if not, write to the Free Software 21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 22 * or visit http://www.gnu.org/licenses/. 23 * 24 * This file may also be available under a different license from Cavium. 25 * Contact Cavium Networks for more information 26*********************************************************************/ 27#include "cvmx-fau.h" 28 29void cvm_oct_poll_controller(struct net_device *dev); 30void cvm_oct_rx_initialize(void); 31void cvm_oct_rx_shutdown(void); 32 33static inline void cvm_oct_rx_refill_pool(int fill_threshold) 34{ 35 int number_to_free; 36 int num_freed; 37 /* Refill the packet buffer pool */ 38 number_to_free = 39 cvmx_fau_fetch_and_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, 0); 40 41 if (number_to_free > fill_threshold) { 42 cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, 43 -number_to_free); 44 num_freed = cvm_oct_mem_fill_fpa(CVMX_FPA_PACKET_POOL, 45 CVMX_FPA_PACKET_POOL_SIZE, 46 number_to_free); 47 if (num_freed != number_to_free) { 48 cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, 49 number_to_free - num_freed); 50 } 51 } 52} 53