cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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cvmx-helper-loop.h (1976B)

      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 */
     46extern int __cvmx_helper_loop_probe(int interface);
     47static 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 */
     58extern int __cvmx_helper_loop_enable(int interface);
     59
     60#endif