openwrt/target/linux/gemini/patches-6.6/0007-net-ethernet-cortina-Use-negotiated-TX-RX-pause.patch
Linus Walleij 70e81efe93 gemini: In-flight ethernet patches
These patches have partial acceptance upstream and are still
a WIP, now there is merge window for kernel v6.10 so these
will not be reposted until that is over. In the meantime,
let's add the current state to OpenWrt so the ethernet on
Gemini is up and working (tested on several devices).

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-05-19 22:06:11 +02:00

47 lines
1.6 KiB
Diff

From 50ac9765c674bac803719c6b8294670edc6df31d Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 10 May 2024 19:44:39 +0200
Subject: [PATCH 4/5] net: ethernet: cortina: Use negotiated TX/RX pause
Instead of directly poking into registers of the PHY, use
the existing function to query phylib about this directly.
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/net/ethernet/cortina/gemini.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
--- a/drivers/net/ethernet/cortina/gemini.c
+++ b/drivers/net/ethernet/cortina/gemini.c
@@ -293,8 +293,8 @@ static void gmac_adjust_link(struct net_
struct gemini_ethernet_port *port = netdev_priv(netdev);
struct phy_device *phydev = netdev->phydev;
union gmac_status status, old_status;
- int pause_tx = 0;
- int pause_rx = 0;
+ bool pause_tx = false;
+ bool pause_rx = false;
status.bits32 = readl(port->gmac_base + GMAC_STATUS);
old_status.bits32 = status.bits32;
@@ -329,14 +329,9 @@ static void gmac_adjust_link(struct net_
}
if (phydev->duplex == DUPLEX_FULL) {
- u16 lcladv = phy_read(phydev, MII_ADVERTISE);
- u16 rmtadv = phy_read(phydev, MII_LPA);
- u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
-
- if (cap & FLOW_CTRL_RX)
- pause_rx = 1;
- if (cap & FLOW_CTRL_TX)
- pause_tx = 1;
+ phy_get_pause(phydev, &pause_tx, &pause_rx);
+ netdev_dbg(netdev, "set negotiated pause params pause TX = %s, pause RX = %s\n",
+ pause_tx ? "ON" : "OFF", pause_rx ? "ON" : "OFF");
}
gmac_set_flow_control(netdev, pause_tx, pause_rx);