asm/octeon/cvmx-helper-npi.h

0001 /***********************license start***************
0002  * Author: Cavium Networks
0003  *
0004  * Contact: support@caviumnetworks.com
0005  * This file is part of the OCTEON SDK
0006  *
0007  * Copyright (c) 2003-2008 Cavium Networks
0008  *
0009  * This file is free software; you can redistribute it and/or modify
0010  * it under the terms of the GNU General Public License, Version 2, as
0011  * published by the Free Software Foundation.
0012  *
0013  * This file is distributed in the hope that it will be useful, but
0014  * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
0015  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
0016  * NONINFRINGEMENT.  See the GNU General Public License for more
0017  * details.
0018  *
0019  * You should have received a copy of the GNU General Public License
0020  * along with this file; if not, write to the Free Software
0021  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
0022  * or visit http://www.gnu.org/licenses/.
0023  *
0024  * This file may also be available under a different license from Cavium.
0025  * Contact Cavium Networks for more information
0026  ***********************license end**************************************/
0027
0028 /**
0029  * @file
0030  *
0031  * Functions for NPI initialization, configuration,
0032  * and monitoring.
0033  *
0034  */
0035 #ifndef __CVMX_HELPER_NPI_H__
0036 #define __CVMX_HELPER_NPI_H__
0037
0038 /**
0039  * Probe a NPI interface and determine the number of ports
0040  * connected to it. The NPI interface should still be down after
0041  * this call.
0042  *
0043  * @interface: Interface to probe
0044  *
0045  * Returns Number of ports on the interface. Zero to disable.
0046  */
0047 extern int __cvmx_helper_npi_probe(int interface);
0048 #define __cvmx_helper_npi_enumerate __cvmx_helper_npi_probe
0049
0050 /**
0051  * Bringup and enable a NPI interface. After this call packet
0052  * I/O should be fully functional. This is called with IPD
0053  * enabled but PKO disabled.
0054  *
0055  * @interface: Interface to bring up
0056  *
0057  * Returns Zero on success, negative on failure
0058  */
0059 extern int __cvmx_helper_npi_enable(int interface);
0060
0061 #endif