| Aaron Williams | 3bda89d | 2020-12-11 17:05:24 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* |
| 3 | * Copyright (C) 2020 Marvell International Ltd. |
| 4 | * |
| 5 | * Functions for NPI initialization, configuration, |
| 6 | * and monitoring. |
| 7 | */ |
| 8 | |
| 9 | #ifndef __CVMX_HELPER_NPI_H__ |
| 10 | #define __CVMX_HELPER_NPI_H__ |
| 11 | |
| 12 | /** |
| 13 | * @INTERNAL |
| 14 | * Probe a NPI interface and determine the number of ports |
| 15 | * connected to it. The NPI interface should still be down after |
| 16 | * this call. |
| 17 | * |
| 18 | * @param interface Interface to probe |
| 19 | * |
| Heinrich Schuchardt | 47b4c02 | 2022-01-19 18:05:50 +0100 | [diff] [blame] | 20 | * Return: Number of ports on the interface. Zero to disable. |
| Aaron Williams | 3bda89d | 2020-12-11 17:05:24 +0100 | [diff] [blame] | 21 | */ |
| 22 | int __cvmx_helper_npi_probe(int interface); |
| 23 | |
| 24 | /** |
| 25 | * @INTERNAL |
| 26 | * Bringup and enable a NPI interface. After this call packet |
| 27 | * I/O should be fully functional. This is called with IPD |
| 28 | * enabled but PKO disabled. |
| 29 | * |
| 30 | * @param xiface Interface to bring up |
| 31 | * |
| Heinrich Schuchardt | 47b4c02 | 2022-01-19 18:05:50 +0100 | [diff] [blame] | 32 | * Return: Zero on success, negative on failure |
| Aaron Williams | 3bda89d | 2020-12-11 17:05:24 +0100 | [diff] [blame] | 33 | */ |
| 34 | int __cvmx_helper_npi_enable(int xiface); |
| 35 | |
| 36 | /** |
| 37 | * Sets the number of pipe used by SLI packet output in the variable, |
| 38 | * which then later used for setting it up in HW |
| 39 | */ |
| 40 | void cvmx_npi_config_set_num_pipes(int num_pipes); |
| 41 | |
| 42 | #endif |