[PATCH net v2] net: sfp: improve Huawei MA5671a fixup

From: Álvaro Fernández Rojas

Date: Thu Mar 05 2026 - 07:52:51 EST


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@xxxxxxxxx>
---
v2: rebase on top of net/main instead of linux/master

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 f4bf53da3d4f..34773cbbd811 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -372,6 +372,12 @@ static void sfp_fixup_ignore_hw(struct sfp *sfp, unsigned int mask)
sfp->state_hw_mask &= ~mask;
}

+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);
@@ -530,7 +536,7 @@ 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 and 8330-265D can operate at 2500base-X, but
// incorrectly report 2500MBd NRZ in their EEPROM.
--
2.47.3