| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Copyright (C) 2020 Marvell International Ltd. |
| * |
| * Functions for LOOP initialization, configuration, |
| * and monitoring. |
| */ |
| |
| #ifndef __CVMX_HELPER_LOOP_H__ |
| #define __CVMX_HELPER_LOOP_H__ |
| |
| /** |
| * @INTERNAL |
| * Probe a LOOP interface and determine the number of ports |
| * connected to it. The LOOP interface should still be down after |
| * this call. |
| * |
| * @param xiface Interface to probe |
| * |
| * Return: Number of ports on the interface. Zero to disable. |
| */ |
| int __cvmx_helper_loop_probe(int xiface); |
| int __cvmx_helper_loop_enumerate(int xiface); |
| |
| /** |
| * @INTERNAL |
| * Bringup and enable a LOOP interface. After this call packet |
| * I/O should be fully functional. This is called with IPD |
| * enabled but PKO disabled. |
| * |
| * @param xiface Interface to bring up |
| * |
| * Return: Zero on success, negative on failure |
| */ |
| int __cvmx_helper_loop_enable(int xiface); |
| |
| #endif |