1 /***********************license start*************** 2 * Author: Cavium Networks 3 * 4 * Contact: support@caviumnetworks.com 5 * This file is part of the OCTEON SDK 6 * 7 * Copyright (c) 2003-2008 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 published by 11 * the Free Software Foundation. 12 * 13 * This file is distributed in the hope that it will be useful, 14 * but AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT. 16 * See the GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this file; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 21 * or visit http://www.gnu.org/licenses/. 22 * 23 * This file may also be available under a different license from Cavium. 24 * Contact Cavium Networks for more information 25 ***********************license end**************************************/ 26 27 /** 28 * @file 29 * 30 * Functions for LOOP initialization, configuration, 31 * and monitoring. 32 * 33 */ 34 #ifndef __CVMX_HELPER_LOOP_H__ 35 #define __CVMX_HELPER_LOOP_H__ 36 37 /** 38 * Probe a LOOP interface and determine the number of ports 39 * connected to it. The LOOP interface should still be down after 40 * this call. 41 * 42 * @interface: Interface to probe 43 * 44 * Returns Number of ports on the interface. Zero to disable. 45 */ 46 extern int __cvmx_helper_loop_probe(int interface); 47 static inline int __cvmx_helper_loop_enumerate(int interface) {return 4; } 48 49 /** 50 * Bringup and enable a LOOP interface. After this call packet 51 * I/O should be fully functional. This is called with IPD 52 * enabled but PKO disabled. 53 * 54 * @interface: Interface to bring up 55 * 56 * Returns Zero on success, negative on failure 57 */ 58 extern int __cvmx_helper_loop_enable(int interface); 59 60 #endif 61