netdev - [PATCH net-next 3/6] net: phy: aquantia: print global syscfg registers

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Message-Id: <20250903130730.2836022-4-vladimir.oltean@nxp.com>
Date: Wed,  3 Sep 2025 16:07:27 +0300
From: Vladimir Oltean <vladimir.oltean@....com>
To: netdev@...r.kernel.org
Cc: Claudiu Manoil <claudiu.manoil@....com>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>,
	UNGLinuxDriver@...rochip.com,
	Andrew Lunn <andrew@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Ioana Ciornei <ioana.ciornei@....com>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	Daniel Golle <daniel@...rotopia.org>,
	Luo Jie <quic_luoj@...cinc.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH net-next 3/6] net: phy: aquantia: print global syscfg registers

Sometimes people with unknown firmware provisioning post on the mailing
lists asking for support. The information collected by
aqr_gen2_read_global_syscfg() is sufficiently important to warrant a
phydev_dbg() that can easily be turned into a verbose print by the
system owner in case some debugging is needed.

Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
---
 drivers/net/phy/aquantia/aquantia_main.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/phy/aquantia/aquantia_main.c b/drivers/net/phy/aquantia/aquantia_main.c
index 8516690e34db..309eecbf71f1 100644
--- a/drivers/net/phy/aquantia/aquantia_main.c
+++ b/drivers/net/phy/aquantia/aquantia_main.c
@@ -837,6 +837,14 @@ static int aqr_gen2_read_global_syscfg(struct phy_device *phydev)
 				    rate_adapt);
 			break;
 		}
+
+		phydev_dbg(phydev,
+			   "Media speed %d uses host interface %s with %s\n",
+			   syscfg->speed, phy_modes(syscfg->interface),
+			   syscfg->rate_adapt == AQR_RATE_ADAPT_NONE ? "no rate adaptation" :
+			   syscfg->rate_adapt == AQR_RATE_ADAPT_PAUSE ? "rate adaptation through flow control" :
+			   syscfg->rate_adapt == AQR_RATE_ADAPT_USX ? "rate adaptation through symbol replication" :
+			   "unrecognized rate adaptation type");
 	}
 
 	return 0;
-- 
2.34.1