netdev - [PATCH net] r8169: re-establish support for RTL8401 chip version

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Message-ID: <02afcc32-7cf3-d024-10c4-fdc1596f15f6@gmail.com>
Date:   Fri, 8 May 2020 08:24:14 +0200
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Realtek linux nic maintainers <nic_swsd@...ltek.com>,
        David Miller <davem@...emloft.net>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Camaleón <noelamac@...il.com>
Subject: [PATCH net] r8169: re-establish support for RTL8401 chip version

r8169 never had native support for the RTL8401, however it reportedly
worked with the fallback to RTL8101e [0]. Therefore let's add this
as an explicit assignment.

[0] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=956868

Fixes: b4cc2dcc9c7c ("r8169: remove default chip versions")
Reported-by: Camaleón <noelamac@...il.com>
Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
This fix doesn't apply cleanly on 4.19, let me know whether you can
adjust it, or whether I should send a separate patch.
---
 drivers/net/ethernet/realtek/r8169_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index f06dbc9a0..8c41f6848 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -2055,6 +2055,8 @@ static enum mac_version rtl8169_get_mac_version(u16 xid, bool gmii)
 		{ 0x7cf, 0x348,	RTL_GIGA_MAC_VER_07 },
 		{ 0x7cf, 0x248,	RTL_GIGA_MAC_VER_07 },
 		{ 0x7cf, 0x340,	RTL_GIGA_MAC_VER_13 },
+		/* RTL8401, reportedly works if treated as RTL8101e */
+		{ 0x7cf, 0x240,	RTL_GIGA_MAC_VER_13 },
 		{ 0x7cf, 0x343,	RTL_GIGA_MAC_VER_10 },
 		{ 0x7cf, 0x342,	RTL_GIGA_MAC_VER_16 },
 		{ 0x7c8, 0x348,	RTL_GIGA_MAC_VER_09 },
-- 
2.26.2