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authorRussell King <rmk+kernel@armlinux.org.uk>2020-01-03 23:13:28 +0000
committerRussell King (Oracle) <rmk+kernel@armlinux.org.uk>2022-06-21 10:57:38 +0100
commitca26f915cca80aec25743471e7c01a76349600c9 (patch)
tree199007ecad105eb32f82e9f82f444e5cb584a425
parent6bb2a8225a7cc90b3a3a3030d59b7cb16c7a06cf (diff)
net: phy: add resolved pause support [*not for mainline*]
Allow phylib drivers to pass the hardware-resolved pause state to MAC drivers, rather than using the software-based pause resolution code. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
-rw-r--r--drivers/net/phy/phy_device.c6
-rw-r--r--include/linux/phy.h9
2 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 5779ea2fb0d3..f6c27c23dde0 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -2785,6 +2785,12 @@ void phy_get_pause(struct phy_device *phydev, bool *tx_pause, bool *rx_pause)
return;
}
+ if (phydev->resolved_pause_valid) {
+ *tx_pause = phydev->resolved_tx_pause;
+ *rx_pause = phydev->resolved_rx_pause;
+ return;
+ }
+
return linkmode_resolve_pause(phydev->advertising,
phydev->lp_advertising,
tx_pause, rx_pause);
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 1f74a6414a90..a99d41070984 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -645,6 +645,15 @@ struct phy_device {
u8 master_slave_set;
u8 master_slave_state;
+ /*
+ * private to phylib: the resolved pause state - only valid if
+ * resolved_pause_valid is true. only phy drivers and phylib
+ * should touch this.
+ */
+ bool resolved_pause_valid;
+ bool resolved_tx_pause;
+ bool resolved_rx_pause;
+
/* Union of PHY and Attached devices' supported link modes */
/* See ethtool.h for more info */
__ETHTOOL_DECLARE_LINK_MODE_MASK(supported);