netdev - [PATCH net-next] net: sfp: add quirk for 2.5G OEM BX SFP

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250215-lkmsub-v1-1-1ffd6ae97229@birger-koblitz.de>
Date: Sat, 15 Feb 2025 07:29:44 +0100
From: Birger Koblitz <mail@...ger-koblitz.de>
To: Jakub Kicinski <kuba@...nel.org>
Cc: netdev@...r.kernel.org, Birger Koblitz <mail@...ger-koblitz.de>, 
 Daniel Golle <daniel@...rotopia.org>
Subject: [PATCH net-next] net: sfp: add quirk for 2.5G OEM BX SFP

The OEM SFP-2.5G-BX10-D/U SFP module pair is meant to operate with
2500Base-X. However, in their EEPROM they incorrectly specify:
Transceiver codes   : 0x00 0x12 0x00 0x00 0x12 0x00 0x01 0x05 0x00
BR, Nominal         : 2500MBd

Use sfp_quirk_2500basex for this module to allow 2500Base-X mode anyway.
Tested on BananaPi R3.

Signed-off-by: Birger Koblitz <mail@...ger-koblitz.de>
Reviewed-by: Daniel Golle <daniel@...rotopia.org>
---
 drivers/net/phy/sfp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 7dbcbf0a4ee26a221e9c47a6f030c8a18317bdbb..9369f5297769493efcab0ed4c356245baa1aa248 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -515,6 +515,8 @@ static const struct sfp_quirk sfp_quirks[] = {
 
 	SFP_QUIRK_F("OEM", "SFP-10G-T", sfp_fixup_rollball_cc),
 	SFP_QUIRK_M("OEM", "SFP-2.5G-T", sfp_quirk_oem_2_5g),
+	SFP_QUIRK_M("OEM", "SFP-2.5G-BX10-D", sfp_quirk_2500basex),
+	SFP_QUIRK_M("OEM", "SFP-2.5G-BX10-U", sfp_quirk_2500basex),
 	SFP_QUIRK_F("OEM", "RTSFP-10", sfp_fixup_rollball_cc),
 	SFP_QUIRK_F("OEM", "RTSFP-10G", sfp_fixup_rollball_cc),
 	SFP_QUIRK_F("Turris", "RTSFP-2.5G", sfp_fixup_rollball),

---
base-commit: 9946eaf552b194bb352c2945b54ff98c8193b3f1
change-id: 20250215-lkmsub-d995d8bef400

Best regards,
-- 
Birger Koblitz <mail@...ger-koblitz.de>