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| author | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2022-10-27 16:10:37 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-10-29 07:48:30 +0300 |
| commit | 9c5a170677c3c8facc83e931a57f4c99c0511ae0 (patch) | |
| tree | 1a2cc47902cfdcf8bd9c63d24421a63bc4463128 | |
| parent | 23f232592d35bdf8dc92c4bc92ea0a2df1d3ce9c (diff) | |
| download | linux-9c5a170677c3c8facc83e931a57f4c99c0511ae0.tar.xz | |
net: phylink: add phylink_get_link_timer_ns() helper
Add a helper to convert the PHY interface mode to the required link
timer setting as stated by the appropriate standard. Inappropriate
interface modes return an error.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | include/linux/phylink.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/phylink.h b/include/linux/phylink.h index 63800bf4a7ac..1df3e5e316e8 100644 --- a/include/linux/phylink.h +++ b/include/linux/phylink.h @@ -616,6 +616,30 @@ int phylink_speed_up(struct phylink *pl); void phylink_set_port_modes(unsigned long *bits); +/** + * phylink_get_link_timer_ns - return the PCS link timer value + * @interface: link &typedef phy_interface_t mode + * + * Return the PCS link timer setting in nanoseconds for the PHY @interface + * mode, or -EINVAL if not appropriate. + */ +static inline int phylink_get_link_timer_ns(phy_interface_t interface) +{ + switch (interface) { + case PHY_INTERFACE_MODE_SGMII: + case PHY_INTERFACE_MODE_QSGMII: + case PHY_INTERFACE_MODE_USXGMII: + return 1600000; + + case PHY_INTERFACE_MODE_1000BASEX: + case PHY_INTERFACE_MODE_2500BASEX: + return 10000000; + + default: + return -EINVAL; + } +} + void phylink_mii_c22_pcs_decode_state(struct phylink_link_state *state, u16 bmsr, u16 lpa); void phylink_mii_c22_pcs_get_state(struct mdio_device *pcs, |