diff options
Diffstat (limited to 'drivers/net/phy/sfp-bus.c')
| -rw-r--r-- | drivers/net/phy/sfp-bus.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/net/phy/sfp-bus.c b/drivers/net/phy/sfp-bus.c index eabc9e3f0a9e..06e6429b8b71 100644 --- a/drivers/net/phy/sfp-bus.c +++ b/drivers/net/phy/sfp-bus.c @@ -103,6 +103,7 @@ static const struct sfp_quirk *sfp_lookup_quirk(const struct sfp_eeprom_id *id) return NULL; } + /** * sfp_parse_port() - Parse the EEPROM base ID, setting the port type * @bus: a pointer to the &struct sfp_bus structure for the sfp module @@ -179,6 +180,33 @@ int sfp_parse_port(struct sfp_bus *bus, const struct sfp_eeprom_id *id, EXPORT_SYMBOL_GPL(sfp_parse_port); /** + * sfp_may_have_phy() - indicate whether the module may have a PHY + * @bus: a pointer to the &struct sfp_bus structure for the sfp module + * @id: a pointer to the module's &struct sfp_eeprom_id + * + * Parse the EEPROM identification given in @id, and return whether + * this module may have a PHY. + */ +bool sfp_may_have_phy(struct sfp_bus *bus, const struct sfp_eeprom_id *id) +{ + if (id->base.e1000_base_t) + return true; + + if (id->base.phys_id != SFF8024_ID_DWDM_SFP) { + switch (id->base.extended_cc) { + case SFF8024_ECC_10GBASE_T_SFI: + case SFF8024_ECC_10GBASE_T_SR: + case SFF8024_ECC_5GBASE_T: + case SFF8024_ECC_2_5GBASE_T: + return true; + } + } + + return false; +} +EXPORT_SYMBOL_GPL(sfp_may_have_phy); + +/** * sfp_parse_support() - Parse the eeprom id for supported link modes * @bus: a pointer to the &struct sfp_bus structure for the sfp module * @id: a pointer to the module's &struct sfp_eeprom_id |