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