* [PATCH net-next] net: sfp: add quirk for TP-LINK SM410U
@ 2026-10-11 0:51 Daniel Golle
2026-10-11 13:29 ` Andrew Lunn
0 siblings, 1 reply; 2+ messages in thread
From: Daniel Golle @ 2026-10-11 0:51 UTC (permalink / raw)
To: Russell King, Andrew Lunn, Heiner Kallweit, David S. Miller,
Eric Dumazet, Jakub Kicinski, Paolo Abeni, Josef Schlehofer,
netdev, linux-kernel
The TP-LINK SM410U is a 2.5G copper module which is based on RealTek
RTL8221B, but doesn't seem to offer any way to access the PHY over I2C.
Add a quirk to disable in-band which isn't supported by the PHY.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
drivers/net/phy/sfp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 2b5528ae930d1..a2aaffeb2063d 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -652,6 +652,7 @@ static const struct sfp_quirk sfp_quirks[] = {
SFP_QUIRK_F("XikeStor", "SKT-2.5G-100M", sfp_fixup_xikestor_2_5g),
SFP_QUIRK_S("ZOERAX", "SFP-2.5G-T", sfp_quirk_oem_2_5g),
+ SFP_QUIRK_S("TP-LINK", "TL-SM410U", sfp_quirk_oem_2_5g),
};
static size_t sfp_strlen(const char *str, size_t maxlen)
--
2.56.0
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH net-next] net: sfp: add quirk for TP-LINK SM410U
2026-10-11 0:51 [PATCH net-next] net: sfp: add quirk for TP-LINK SM410U Daniel Golle
@ 2026-10-11 13:29 ` Andrew Lunn
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Lunn @ 2026-10-11 13:29 UTC (permalink / raw)
To: Daniel Golle
Cc: Russell King, Heiner Kallweit, David S. Miller, Eric Dumazet,
Jakub Kicinski, Paolo Abeni, Josef Schlehofer, netdev,
linux-kernel
On Sun, Oct 11, 2026 at 01:51:14AM +0100, Daniel Golle wrote:
> The TP-LINK SM410U is a 2.5G copper module which is based on RealTek
> RTL8221B, but doesn't seem to offer any way to access the PHY over I2C.
> Add a quirk to disable in-band which isn't supported by the PHY.
>
> Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew
^ permalink raw reply [flat|nested] 2+ messages in thread
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