[PATCH 2/4] net: sfp: allow to use also SFP modules which are detected as SFF

Pali Rohár
2020-12-30T15:49:14Z

Some GPON SFP modules (e.g. Ubiquiti U-Fiber Instant) have set SFF phys_id
in their EEPROM. Kernel SFP subsystem currently does not allow to use
modules detected as SFF.

This change extends check for SFP modules so also those with SFF phys_id
are allowed. With this change also GPON SFP module Ubiquiti U-Fiber Instant
is recognized.

Signed-off-by: Pali Rohár <pali@kernel.org>
---
drivers/net/phy/sfp.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 490e78a72dd6..73f3ecf15260 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -273,7 +273,8 @@ 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 &&
+ return (id->base.phys_id == SFF8024_ID_SFP ||
+ id->base.phys_id == SFF8024_ID_SFF_8472) &&
id->base.phys_ext_id == SFP_PHYS_EXT_ID_SFP;
}

--
2.20.1