From: Stephen Douthit <steph...@silicom-usa.com>
1G Cu SFPs are not officially supported on the X552/X553 family of devices
but treat them as 1G SX modules since they usually work. Print a warning
though since support isn't validated, similar to what already happens for
other unofficially supported SFPs enabled via the allow_unsupported_sfps
parameter inherited from the mainline Linux driver.
Signed-off-by: Stephen Douthit <steph...@silicom-usa.com>
Signed-off-by: Jeff Daly <je...@silicom-usa.com>
---
drivers/net/ixgbe/base/ixgbe_x550.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ixgbe/base/ixgbe_x550.c
b/drivers/net/ixgbe/base/ixgbe_x550.c
index 8810d1658e..8d1bc6c80d 100644
--- a/drivers/net/ixgbe/base/ixgbe_x550.c
+++ b/drivers/net/ixgbe/base/ixgbe_x550.c
@@ -1538,9 +1538,21 @@ STATIC s32 ixgbe_supported_sfp_modules_X550em(struct
ixgbe_hw *hw, bool *linear)
case ixgbe_sfp_type_1g_lha_core1:
*linear = false;
break;
- case ixgbe_sfp_type_unknown:
+ /* Copper SFPs are not officially supported for x550em devices, but can
+ * often be made to work at fixed 1G speeds. Pretend they're 1g_sx
+ * modules here to allow g.Fast DSL SFPs to work.
+ */
case ixgbe_sfp_type_1g_cu_core0:
+ EWARN(hw, "Pretending that unsupported 1g_cu SFP is 1g_sx\n");
+ *linear = false;
+ hw->phy.sfp_type = ixgbe_sfp_type_1g_sx_core0;
+ break;
case ixgbe_sfp_type_1g_cu_core1:
+ EWARN(hw, "Pretending that unsupported 1g_cu SFP is 1g_sx\n");
+ *linear = false;
+ hw->phy.sfp_type = ixgbe_sfp_type_1g_sx_core1;
+ break;
+ case ixgbe_sfp_type_unknown:
default:
return IXGBE_ERR_SFP_NOT_SUPPORTED;
}
--
2.25.1
