mirror of
git://git.openwrt.org/openwrt/openwrt.git
synced 2025-10-27 12:04:28 -04:00
5281033831
Instead of forcing 2.5G PHYs into rate-adapter mode which results higher energy consumption, lack of support for half-duplex modes and typically worse performance when linked at speeds less than 2.5G, use SGMII mode which allows the MAC to follow the PHY speed. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
37 lines
1.4 KiB
Diff
37 lines
1.4 KiB
Diff
From 9e1a0d2006bc108b239b5bc00b42c2a8cc651217 Mon Sep 17 00:00:00 2001
|
|
From: Daniel Golle <daniel@makrotopia.org>
|
|
Date: Tue, 8 Oct 2024 23:58:41 +0100
|
|
Subject: [PATCH] net: phy: populate host_interfaces when attaching PHY
|
|
|
|
Use bitmask of interfaces supported by the MAC for the PHY to choose
|
|
from if the declared interface mode is among those using a single pair
|
|
of SerDes lanes.
|
|
This will allow 2500Base-T PHYs to switch to SGMII on most hosts, which
|
|
results in half-duplex being supported in case the MAC supports them.
|
|
Without this change, 2500Base-T PHYs will always operate in 2500Base-X
|
|
mode with rate-matching, which is not only wasteful in terms of energy
|
|
consumption, but also limits the supported interface modes to
|
|
full-duplex only.
|
|
|
|
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
|
|
---
|
|
drivers/net/phy/phylink.c | 7 +++++++
|
|
1 file changed, 7 insertions(+)
|
|
|
|
--- a/drivers/net/phy/phylink.c
|
|
+++ b/drivers/net/phy/phylink.c
|
|
@@ -2044,6 +2044,13 @@ int phylink_fwnode_phy_connect(struct ph
|
|
pl->link_config.interface = pl->link_interface;
|
|
}
|
|
|
|
+ /* Assume SerDes interface modes share the same lanes and allow
|
|
+ * the PHY to switch between them
|
|
+ */
|
|
+ if (test_bit(pl->link_interface, phylink_sfp_interfaces))
|
|
+ phy_interface_and(phy_dev->host_interfaces, phylink_sfp_interfaces,
|
|
+ pl->config->supported_interfaces);
|
|
+
|
|
ret = phy_attach_direct(pl->netdev, phy_dev, flags,
|
|
pl->link_interface);
|
|
phy_device_free(phy_dev);
|