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net: sfp: augment SFP parsing with phy_interface_t bitmap

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We currently parse the SFP EEPROM to a bitmap of ethtool link modes,
and then attempt to convert the link modes to a PHY interface mode.
While this works at present, there are cases where this is sub-optimal.
For example, where a module can operate with several different PHY
interface modes.

To start addressing this, arrange for the SFP EEPROM parsing to also
provide a bitmap of the possible PHY interface modes.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Russell King
2022-09-30 16:21:00 +02:00
committed by David S. Miller
parent 1645f44dd5
commit fd580c9830
9 changed files with 78 additions and 28 deletions
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5
include/linux/sfp.h
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@@ -535,7 +535,7 @@ 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);
unsigned long *support, unsigned long *interfaces);
phy_interface_t sfp_select_interface(struct sfp_bus *bus,
unsigned long *link_modes);
@@ -568,7 +568,8 @@ static inline bool sfp_may_have_phy(struct sfp_bus *bus,
static inline void sfp_parse_support(struct sfp_bus *bus,
const struct sfp_eeprom_id *id,
unsigned long *support)
unsigned long *support,
unsigned long *interfaces)
{
}