If the phy is configured to use pause-based rate adaptation, ensure that
the link is full duplex with pause frame reception enabled. Note that these
settings may be overridden by ethtool.

Signed-off-by: Sean Anderson <redacted>
---

Changes in v3:
- New

 drivers/net/phy/phylink.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 7fa21941878e..7f65413aa778 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c

@@ -1445,6 +1445,10 @@ static void phylink_phy_change(struct phy_device *phydev, bool up)
 	pl->phy_state.speed = phy_interface_speed(phydev->interface,
 						  phydev->speed);
 	pl->phy_state.duplex = phydev->duplex;
+	if (phydev->rate_adaptation == RATE_ADAPT_PAUSE) {
+		pl->phy_state.duplex = DUPLEX_FULL;
+		rx_pause = true;
+	}