fcb26bd2b6
Synopsys DesignWare XPCS is an MMD that can manage link status, auto-negotiation, link training, ... In this commit we add basic support for XPCS using USXGMII interface and Clause 73 Auto-negotiation. This is highly tied with PHYLINK and can't be used without it. A given ethernet driver can use the provided callbacks to add the support for XPCS. Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net>
42 lines
1 KiB
C
42 lines
1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2020 Synopsys, Inc. and/or its affiliates.
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* Synopsys DesignWare XPCS helpers
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*/
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#ifndef __LINUX_MDIO_XPCS_H
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#define __LINUX_MDIO_XPCS_H
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#include <linux/phy.h>
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#include <linux/phylink.h>
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struct mdio_xpcs_args {
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__ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
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struct mii_bus *bus;
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int addr;
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};
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struct mdio_xpcs_ops {
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int (*validate)(struct mdio_xpcs_args *xpcs,
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unsigned long *supported,
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struct phylink_link_state *state);
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int (*config)(struct mdio_xpcs_args *xpcs,
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const struct phylink_link_state *state);
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int (*get_state)(struct mdio_xpcs_args *xpcs,
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struct phylink_link_state *state);
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int (*link_up)(struct mdio_xpcs_args *xpcs, int speed,
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phy_interface_t interface);
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int (*probe)(struct mdio_xpcs_args *xpcs, phy_interface_t interface);
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};
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#if IS_ENABLED(CONFIG_MDIO_XPCS)
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struct mdio_xpcs_ops *mdio_xpcs_get_ops(void);
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#else
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static inline struct mdio_xpcs_ops *mdio_xpcs_get_ops(void)
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{
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return NULL;
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}
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#endif
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#endif /* __LINUX_MDIO_XPCS_H */
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