linux-stable/include/linux/mdio-xpcs.h
Jose Abreu fcb26bd2b6 net: phy: Add Synopsys DesignWare XPCS MDIO module
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>
2020-03-09 20:13:16 -07:00

41 lines
1 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2020 Synopsys, Inc. and/or its affiliates.
* Synopsys DesignWare XPCS helpers
*/
#ifndef __LINUX_MDIO_XPCS_H
#define __LINUX_MDIO_XPCS_H
#include <linux/phy.h>
#include <linux/phylink.h>
struct mdio_xpcs_args {
__ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
struct mii_bus *bus;
int addr;
};
struct mdio_xpcs_ops {
int (*validate)(struct mdio_xpcs_args *xpcs,
unsigned long *supported,
struct phylink_link_state *state);
int (*config)(struct mdio_xpcs_args *xpcs,
const struct phylink_link_state *state);
int (*get_state)(struct mdio_xpcs_args *xpcs,
struct phylink_link_state *state);
int (*link_up)(struct mdio_xpcs_args *xpcs, int speed,
phy_interface_t interface);
int (*probe)(struct mdio_xpcs_args *xpcs, phy_interface_t interface);
};
#if IS_ENABLED(CONFIG_MDIO_XPCS)
struct mdio_xpcs_ops *mdio_xpcs_get_ops(void);
#else
static inline struct mdio_xpcs_ops *mdio_xpcs_get_ops(void)
{
return NULL;
}
#endif
#endif /* __LINUX_MDIO_XPCS_H */