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From: "Álvaro Fernández Rojas" <noltari@gmail.com>
To: linux@armlinux.org.uk, andrew@lunn.ch, hkallweit1@gmail.com,
	davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
	pabeni@redhat.com, mnhagan88@gmail.com, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org
Cc: "Álvaro Fernández Rojas" <noltari@gmail.com>
Subject: [PATCH] net: sfp: improve Huawei MA5671a fixup
Date: Thu,  5 Mar 2026 13:12:39 +0100	[thread overview]
Message-ID: <20260305121354.40674-1-noltari@gmail.com> (raw)

With the current sfp_fixup_ignore_tx_fault() fixup we ignore the TX_FAULT
signal, but we also need to apply sfp_fixup_ignore_los() in order to be
able to communicate with the module even if the fiber isn't connected for
configuration purposes.
This is needed for all the MA5671a firmwares, excluding the FS modded
firmware.

Fixes: 2069624dac19 ("net: sfp: Add tx-fault workaround for Huawei MA5671A SFP ONT")
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 drivers/net/phy/sfp.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 347c1e0e94d9..bcea137ad5f9 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -361,6 +361,12 @@ static void sfp_fixup_ignore_tx_fault(struct sfp *sfp)
 	sfp->state_ignore_mask |= SFP_F_TX_FAULT;
 }
 
+static void sfp_fixup_huawei(struct sfp *sfp)
+{
+	sfp_fixup_ignore_tx_fault(sfp);
+	sfp_fixup_ignore_los(sfp);
+}
+
 static void sfp_fixup_nokia(struct sfp *sfp)
 {
 	sfp_fixup_long_startup(sfp);
@@ -499,7 +505,7 @@ static const struct sfp_quirk sfp_quirks[] = {
 	// Huawei MA5671A can operate at 2500base-X, but report 1.2GBd NRZ in
 	// their EEPROM
 	SFP_QUIRK("HUAWEI", "MA5671A", sfp_quirk_2500basex,
-		  sfp_fixup_ignore_tx_fault),
+		  sfp_fixup_huawei),
 
 	// Lantech 8330-262D-E can operate at 2500base-X, but incorrectly report
 	// 2500MBd NRZ in their EEPROM
-- 
2.47.3


                 reply	other threads:[~2026-03-05 12:14 UTC|newest]

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