[PATCH 2/2] net: sfp: support 25G long-range modules (extended compliance code 0x3)

[Josua Mayer <josua@solid-run.com>]

The extended compliance code value SFF8024_ECC_100GBASE_ER4_25GBASE_ER
(0x3) means either 4-lane 100G or single lane 25G.

Set 25000baseLR_Full mode supported in addition to the already set
100000baseLR4_ER4_Full, and handle it in sfp_select_interface.

This fixes detection of 25G capability for two SFP fiber modules:

- GigaLight GSS-SPO250-LRT
- FS SFP-25G23-BX20-I

Signed-off-by: Josua Mayer <josua@solid-run.com>
---
 drivers/net/phy/sfp-bus.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/sfp-bus.c b/drivers/net/phy/sfp-bus.c
index b945d75966d5..2caa0e0c4ec8 100644
--- a/drivers/net/phy/sfp-bus.c
+++ b/drivers/net/phy/sfp-bus.c
@@ -247,6 +247,7 @@ static void sfp_module_parse_support(struct sfp_bus *bus,
 	case SFF8024_ECC_100GBASE_LR4_25GBASE_LR:
 	case SFF8024_ECC_100GBASE_ER4_25GBASE_ER:
 		phylink_set(modes, 100000baseLR4_ER4_Full);
+		phylink_set(modes, 25000baseLR_Full);
 		break;
 	case SFF8024_ECC_100GBASE_CR4:
 		phylink_set(modes, 100000baseCR4_Full);
@@ -342,7 +343,8 @@ phy_interface_t sfp_select_interface(struct sfp_bus *bus,
 {
 	if (phylink_test(link_modes, 25000baseCR_Full) ||
 	    phylink_test(link_modes, 25000baseKR_Full) ||
-	    phylink_test(link_modes, 25000baseSR_Full))
+	    phylink_test(link_modes, 25000baseSR_Full) ||
+	    phylink_test(link_modes, 25000baseLR_Full))
 		return PHY_INTERFACE_MODE_25GBASER;
 
 	if (phylink_test(link_modes, 10000baseCR_Full) ||

-- 
2.43.0