linux-kernel - [PATCH net-next v4 01/11] net: phylink: publish ethtool link modes that supported and advertised

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Date: Mon, 29 Jan 2024 21:02:43 +0800
From: Choong Yong Liang <yong.liang.choong@...ux.intel.com>
To: Rajneesh Bhardwaj <irenic.rajneesh@...il.com>,
	David E Box <david.e.box@...ux.intel.com>,
	Hans de Goede <hdegoede@...hat.com>,
	Mark Gross <markgross@...nel.org>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Jose Abreu <Jose.Abreu@...opsys.com>,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Richard Cochran <richardcochran@...il.com>,
	Russell King <linux@...linux.org.uk>,
	Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Jesper Dangaard Brouer <hawk@...nel.org>,
	John Fastabend <john.fastabend@...il.com>,
	Andrew Lunn <andrew@...n.ch>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Philipp Zabel <p.zabel@...gutronix.de>
Cc: Andrew Halaney <ahalaney@...hat.com>,
	Simon Horman <simon.horman@...igine.com>,
	Serge Semin <fancer.lancer@...il.com>,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org,
	platform-driver-x86@...r.kernel.org,
	linux-hwmon@...r.kernel.org,
	bpf@...r.kernel.org,
	Voon Wei Feng <weifeng.voon@...el.com>,
	Michael Sit Wei Hong <michael.wei.hong.sit@...el.com>,
	Lai Peter Jun Ann <jun.ann.lai@...el.com>,
	Abdul Rahim Faizal <faizal.abdul.rahim@...el.com>
Subject: [PATCH net-next v4 01/11] net: phylink: publish ethtool link modes that supported and advertised

Adding the allow_switch_interface flag to publish all the ethtool
link modes that can be supported and advertised.

This will allow the interface switching based on different ethtool
link modes.

Signed-off-by: Choong Yong Liang <yong.liang.choong@...ux.intel.com>
---
 drivers/net/phy/phylink.c | 9 +++++----
 include/linux/phylink.h   | 1 +
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index ed0b4ccaa6a6..38ee2624169c 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1839,10 +1839,11 @@ static int phylink_validate_phy(struct phylink *pl, struct phy_device *phy,
 	 * against all interface modes, which may lead to more ethtool link
 	 * modes being advertised than are actually supported.
 	 */
-	if (phy->is_c45 && state->rate_matching == RATE_MATCH_NONE &&
-	    state->interface != PHY_INTERFACE_MODE_RXAUI &&
-	    state->interface != PHY_INTERFACE_MODE_XAUI &&
-	    state->interface != PHY_INTERFACE_MODE_USXGMII)
+	if ((phy->is_c45 && state->rate_matching == RATE_MATCH_NONE &&
+	     state->interface != PHY_INTERFACE_MODE_RXAUI &&
+	     state->interface != PHY_INTERFACE_MODE_XAUI &&
+	     state->interface != PHY_INTERFACE_MODE_USXGMII) ||
+	     pl->config->allow_switch_interface)
 		state->interface = PHY_INTERFACE_MODE_NA;
 
 	return phylink_validate(pl, supported, state);
diff --git a/include/linux/phylink.h b/include/linux/phylink.h
index d589f89c612c..b362d3231aa4 100644
--- a/include/linux/phylink.h
+++ b/include/linux/phylink.h
@@ -151,6 +151,7 @@ struct phylink_config {
 	bool poll_fixed_state;
 	bool mac_managed_pm;
 	bool ovr_an_inband;
+	bool allow_switch_interface;
 	void (*get_fixed_state)(struct phylink_config *config,
 				struct phylink_link_state *state);
 	DECLARE_PHY_INTERFACE_MASK(supported_interfaces);
-- 
2.34.1