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net: phylink: provide phylink_mac_implements_lpi()

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Provide a helper to determine whether the MAC operations structure
implements the LPI operations, which will be used by both phylink and
DSA.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1thR9g-003vX6-4s@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Russell King (Oracle)
2025-02-10 10:36:44 +00:00
committed by Jakub Kicinski
parent 2f4720318d
commit 2001d21592
2 changed files with 13 additions and 2 deletions
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3
drivers/net/phy/phylink.c
View File

@@ -1957,8 +1957,7 @@ struct phylink *phylink_create(struct phylink_config *config,
return ERR_PTR(-EINVAL);
}
pl->mac_supports_eee_ops = mac_ops->mac_disable_tx_lpi &&
mac_ops->mac_enable_tx_lpi;
pl->mac_supports_eee_ops = phylink_mac_implements_lpi(mac_ops);
pl->mac_supports_eee = pl->mac_supports_eee_ops &&
pl->config->lpi_capabilities &&
!phy_interface_empty(pl->config->lpi_interfaces);

12
include/linux/phylink.h
View File

@@ -737,6 +737,18 @@ static inline int phylink_get_link_timer_ns(phy_interface_t interface)
}
}
/**
* phylink_mac_implements_lpi() - determine if MAC implements LPI ops
* @ops: phylink_mac_ops structure
*
* Returns true if the phylink MAC operations structure indicates that the
* LPI operations have been implemented, false otherwise.
*/
static inline bool phylink_mac_implements_lpi(const struct phylink_mac_ops *ops)
{
return ops && ops->mac_disable_tx_lpi && ops->mac_enable_tx_lpi;
}
void phylink_mii_c22_pcs_decode_state(struct phylink_link_state *state,
unsigned int neg_mode, u16 bmsr, u16 lpa);
void phylink_mii_c22_pcs_get_state(struct mdio_device *pcs,