diff options
Diffstat (limited to 'target/linux/generic/pending-5.4/771-net-sfp-add-mode-quirk-Ubiquiti-UFiber-Instant.patch')
| -rw-r--r-- | target/linux/generic/pending-5.4/771-net-sfp-add-mode-quirk-Ubiquiti-UFiber-Instant.patch | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/target/linux/generic/pending-5.4/771-net-sfp-add-mode-quirk-Ubiquiti-UFiber-Instant.patch b/target/linux/generic/pending-5.4/771-net-sfp-add-mode-quirk-Ubiquiti-UFiber-Instant.patch new file mode 100644 index 0000000000..e48b474472 --- /dev/null +++ b/target/linux/generic/pending-5.4/771-net-sfp-add-mode-quirk-Ubiquiti-UFiber-Instant.patch @@ -0,0 +1,93 @@ +From f0b4f847673299577c29b71d3f3acd3c313d81b7 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org> +Date: Mon, 25 Jan 2021 16:02:28 +0100 +Subject: net: sfp: add mode quirk for GPON module Ubiquiti U-Fiber Instant +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +The Ubiquiti U-Fiber Instant SFP GPON module has nonsensical information +stored in its EEPROM. It claims to support all transceiver types including +10G Ethernet. Clear all claimed modes and set only 1000baseX_Full, which is +the only one supported. + +This module has also phys_id set to SFF, and the SFP subsystem currently +does not allow to use SFP modules detected as SFFs. Add exception for this +module so it can be detected as supported. + +This change finally allows to detect and use SFP GPON module Ubiquiti +U-Fiber Instant on Linux system. + +EEPROM content of this SFP module is (where XX is serial number): + +00: 02 04 0b ff ff ff ff ff ff ff ff 03 0c 00 14 c8 ???........??.?? +10: 00 00 00 00 55 42 4e 54 20 20 20 20 20 20 20 20 ....UBNT +20: 20 20 20 20 00 18 e8 29 55 46 2d 49 4e 53 54 41 .??)UF-INSTA +30: 4e 54 20 20 20 20 20 20 34 20 20 20 05 1e 00 36 NT 4 ??.6 +40: 00 06 00 00 55 42 4e 54 XX XX XX XX XX XX XX XX .?..UBNTXXXXXXXX +50: 20 20 20 20 31 34 30 31 32 33 20 20 60 80 02 41 140123 `??A + +Signed-off-by: Pali Rohár <pali@kernel.org> +Signed-off-by: Jakub Kicinski <kuba@kernel.org> +--- + drivers/net/phy/sfp-bus.c | 15 +++++++++++++++ + drivers/net/phy/sfp.c | 17 +++++++++++++++-- + 2 files changed, 30 insertions(+), 2 deletions(-) + +--- a/drivers/net/phy/sfp-bus.c ++++ b/drivers/net/phy/sfp-bus.c +@@ -44,6 +44,17 @@ static void sfp_quirk_2500basex(const st + phylink_set(modes, 2500baseX_Full); + } + ++static void sfp_quirk_ubnt_uf_instant(const struct sfp_eeprom_id *id, ++ unsigned long *modes) ++{ ++ /* Ubiquiti U-Fiber Instant module claims that support all transceiver ++ * types including 10G Ethernet which is not truth. So clear all claimed ++ * modes and set only one mode which module supports: 1000baseX_Full. ++ */ ++ phylink_zero(modes); ++ phylink_set(modes, 1000baseX_Full); ++} ++ + static const struct sfp_quirk sfp_quirks[] = { + { + // Alcatel Lucent G-010S-P can operate at 2500base-X, but +@@ -63,6 +74,10 @@ static const struct sfp_quirk sfp_quirks + .vendor = "HUAWEI", + .part = "MA5671A", + .modes = sfp_quirk_2500basex, ++ }, { ++ .vendor = "UBNT", ++ .part = "UF-INSTANT", ++ .modes = sfp_quirk_ubnt_uf_instant, + }, + }; + +--- a/drivers/net/phy/sfp.c ++++ b/drivers/net/phy/sfp.c +@@ -273,8 +273,21 @@ static const struct sff_data sff_data = + + static bool sfp_module_supported(const struct sfp_eeprom_id *id) + { +- return id->base.phys_id == SFF8024_ID_SFP && +- id->base.phys_ext_id == SFP_PHYS_EXT_ID_SFP; ++ if (id->base.phys_id == SFF8024_ID_SFP && ++ id->base.phys_ext_id == SFP_PHYS_EXT_ID_SFP) ++ return true; ++ ++ /* SFP GPON module Ubiquiti U-Fiber Instant has in its EEPROM stored ++ * phys id SFF instead of SFP. Therefore mark this module explicitly ++ * as supported based on vendor name and pn match. ++ */ ++ if (id->base.phys_id == SFF8024_ID_SFF_8472 && ++ id->base.phys_ext_id == SFP_PHYS_EXT_ID_SFP && ++ !memcmp(id->base.vendor_name, "UBNT ", 16) && ++ !memcmp(id->base.vendor_pn, "UF-INSTANT ", 16)) ++ return true; ++ ++ return false; + } + + static const struct sff_data sfp_data = { |