diff options
| author | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2024-02-08 16:12:43 +0000 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2024-04-16 16:51:04 +0100 |
| commit | 7cb3771a782bb7db06169b98d15f4f20bb40ecbc (patch) | |
| tree | bbc6e431d0cb60b55953998a8358bbdb3fea450f /include | |
| parent | 2c621b33b510f6b9adbadcf1eec01cdf62fa9bd6 (diff) | |
net: phylink: add pcs_query_inband()
Add a pcs_query_inband() interface which reflects phy_query_inband()
for PHYs. This can be used to determine for the specified interface
mode whether in-band signalling is supported by the PCS, and whether
the PCS requires in-band signalling.
This is used to determine whether we should use inband autonegotiation
in inband mode, which may be required or may be unsupported in various
interface modes.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/phylink.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/phylink.h b/include/linux/phylink.h index e1fa495c6f70..924cfdcc73f2 100644 --- a/include/linux/phylink.h +++ b/include/linux/phylink.h @@ -445,6 +445,7 @@ struct phylink_pcs { /** * struct phylink_pcs_ops - MAC PCS operations structure. * @pcs_validate: validate the link configuration. + * @pcs_query_inband: query inband support for interface mode. * @pcs_enable: enable the PCS. * @pcs_disable: disable the PCS. * @pcs_pre_config: pre-mac_config method (for errata) @@ -458,6 +459,8 @@ struct phylink_pcs { struct phylink_pcs_ops { int (*pcs_validate)(struct phylink_pcs *pcs, unsigned long *supported, const struct phylink_link_state *state); + unsigned int (*pcs_query_inband)(struct phylink_pcs *pcs, + phy_interface_t interface); int (*pcs_enable)(struct phylink_pcs *pcs); void (*pcs_disable)(struct phylink_pcs *pcs); void (*pcs_pre_config)(struct phylink_pcs *pcs, @@ -494,6 +497,20 @@ int pcs_validate(struct phylink_pcs *pcs, unsigned long *supported, const struct phylink_link_state *state); /** + * pcs_query_inband - query inband support for interface mode. + * @pcs: a pointer to a &struct phylink_pcs. + * @interface: interface mode to be queried + * + * Returns zero if it is unknown what in-band signalling is supported by the + * PHY (e.g. because the PHY driver doesn't implement the method.) Otherwise, + * returns a bit mask of the LINK_INBAND_* values from + * &enum link_inband_signalling to describe which inband modes are supported + * for this interface mode. + */ +unsigned int pcs_query_inband(struct phylink_pcs *pcs, + phy_interface_t interface); + +/** * pcs_enable() - enable the PCS. * @pcs: a pointer to a &struct phylink_pcs. */ |