73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2020 Marvell International Ltd.
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*
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* Functions for SRIO initialization, configuration,
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* and monitoring.
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*/
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#ifndef __CVMX_HELPER_SRIO_H__
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#define __CVMX_HELPER_SRIO_H__
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/**
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* @INTERNAL
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* Convert interface number to sRIO link number
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* per SoC model.
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*
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* @param xiface Interface to convert
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*
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* @return Srio link number
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*/
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int __cvmx_helper_srio_port(int xiface);
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/**
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* @INTERNAL
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* Probe a SRIO interface and determine the number of ports
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* connected to it. The SRIO interface should still be down after
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* this call.
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*
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* @param xiface Interface to probe
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*
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* @return Number of ports on the interface. Zero to disable.
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*/
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int __cvmx_helper_srio_probe(int xiface);
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/**
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* @INTERNAL
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* Bringup and enable a SRIO interface. After this call packet
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* I/O should be fully functional. This is called with IPD
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* enabled but PKO disabled.
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*
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* @param xiface Interface to bring up
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*
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* @return Zero on success, negative on failure
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*/
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int __cvmx_helper_srio_enable(int xiface);
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/**
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* @INTERNAL
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* Return the link state of an IPD/PKO port as returned by SRIO link status.
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*
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* @param ipd_port IPD/PKO port to query
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*
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* @return Link state
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*/
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cvmx_helper_link_info_t __cvmx_helper_srio_link_get(int ipd_port);
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/**
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* @INTERNAL
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* Configure an IPD/PKO port for the specified link state. This
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* function does not influence auto negotiation at the PHY level.
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* The passed link state must always match the link state returned
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* by cvmx_helper_link_get(). It is normally best to use
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* cvmx_helper_link_autoconf() instead.
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*
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* @param ipd_port IPD/PKO port to configure
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* @param link_info The new link state
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*
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* @return Zero on success, negative on failure
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*/
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int __cvmx_helper_srio_link_set(int ipd_port, cvmx_helper_link_info_t link_info);
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#endif
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