diff options
| author | Russell King <rmk+kernel@armlinux.org.uk> | 2019-12-11 10:56:45 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-12-11 11:53:41 -0800 |
| commit | 52c956003a9d5bcae1f445f9dfd42b624adb6e87 (patch) | |
| tree | e5839ba1ae0b1a3403aa4440b0589665120e19f7 /include/linux/sfp.h | |
| parent | c0de2f47202941d936f0482ccd5b010b642a0008 (diff) | |
net: phylink: delay MAC configuration for copper SFP modules
Knowing whether we need to delay the MAC configuration because a module
may have a PHY is useful to phylink to allow NBASE-T modules to work on
systems supporting no more than 2.5G speeds.
This commit allows us to delay such configuration until after the PHY
has been probed by recording the parsed capabilities, and if the module
may have a PHY, doing no more until the module_start() notification is
called. At that point, we either have a PHY, or we don't.
We move the PHY-based setup a little later, and use the PHYs support
capabilities rather than the EEPROM parsed capabilities to determine
whether we can support the PHY.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/sfp.h')
| -rw-r--r-- | include/linux/sfp.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/sfp.h b/include/linux/sfp.h index 66a56396e8e3..38893e4dd0f0 100644 --- a/include/linux/sfp.h +++ b/include/linux/sfp.h @@ -533,6 +533,7 @@ struct sfp_upstream_ops { #if IS_ENABLED(CONFIG_SFP) int sfp_parse_port(struct sfp_bus *bus, const struct sfp_eeprom_id *id, unsigned long *support); +bool sfp_may_have_phy(struct sfp_bus *bus, const struct sfp_eeprom_id *id); void sfp_parse_support(struct sfp_bus *bus, const struct sfp_eeprom_id *id, unsigned long *support); phy_interface_t sfp_select_interface(struct sfp_bus *bus, @@ -556,6 +557,12 @@ static inline int sfp_parse_port(struct sfp_bus *bus, return PORT_OTHER; } +static inline bool sfp_may_have_phy(struct sfp_bus *bus, + const struct sfp_eeprom_id *id) +{ + return false; +} + static inline void sfp_parse_support(struct sfp_bus *bus, const struct sfp_eeprom_id *id, unsigned long *support) |