diff options
| author | Pali Rohár <pali@kernel.org> | 2021-01-25 18:02:28 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-01-29 00:41:17 +0300 |
| commit | f0b4f847673299577c29b71d3f3acd3c313d81b7 (patch) | |
| tree | d6776024a6355be3098a763a84a761d3bc0af25a /drivers/net/phy/sfp.c | |
| parent | 426c6cbc409cbda9ab1a9dbf15d3c2ef947eb8c1 (diff) | |
| download | linux-f0b4f847673299577c29b71d3f3acd3c313d81b7.tar.xz | |
net: sfp: add mode quirk for GPON module Ubiquiti U-Fiber Instant
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>
Diffstat (limited to 'drivers/net/phy/sfp.c')
| -rw-r--r-- | drivers/net/phy/sfp.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c index ca68839c27ce..7998acc689b7 100644 --- a/drivers/net/phy/sfp.c +++ b/drivers/net/phy/sfp.c @@ -277,8 +277,21 @@ 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 = { |