diff options
| author | Jose Abreu <Jose.Abreu@synopsys.com> | 2020-03-09 09:36:26 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-03-09 20:13:16 -0700 |
| commit | fcb26bd2b6cab573f06e5855638368cf88e99c2b (patch) | |
| tree | ab1b3dfb9d9ab84f57c3b5246b719d5992bce032 /include | |
| parent | 9414819654cc2968e7cca5014ed9ee433dbf2297 (diff) | |
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mdio-xpcs.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/linux/mdio-xpcs.h b/include/linux/mdio-xpcs.h new file mode 100644 index 000000000000..9a841aa5982d --- /dev/null +++ b/include/linux/mdio-xpcs.h @@ -0,0 +1,41 @@ +/* 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 */ |