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authorRussell King (Oracle) <rmk+kernel@armlinux.org.uk>2022-10-27 14:10:37 +0100
committerJakub Kicinski <kuba@kernel.org>2022-10-28 21:48:30 -0700
commit9c5a170677c3c8facc83e931a57f4c99c0511ae0 (patch)
tree1a2cc47902cfdcf8bd9c63d24421a63bc4463128
parentMerge branch 'net-remove-the-obsolte-u64_stats_fetch_-_irq' (diff)
downloadwireguard-linux-9c5a170677c3c8facc83e931a57f4c99c0511ae0.tar.xz
wireguard-linux-9c5a170677c3c8facc83e931a57f4c99c0511ae0.zip
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.h24
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,