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net: sfp: remove incomplete 100BASE-FX and 100BASE-LX support 

The 100BASE-FX and 100BASE-LX support assumes a PHY is present; this
is probably an incorrect assumption. In any case, sfp_parse_support()
will fail such a module. Let's stop pretending we support these
modules.

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>
This commit is contained in:
Russell King 2019-12-11 10:55:54 +00:00 committed by David S. Miller
parent c219399988
commit fa2de660a8
2 changed files with 2 additions and 15 deletions
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4
drivers/net/phy/sfp-bus.c
View File

@ -342,9 +342,7 @@ phy_interface_t sfp_select_interface(struct sfp_bus *bus,
if (phylink_test(link_modes, 2500baseX_Full))
return PHY_INTERFACE_MODE_2500BASEX;
if (id->base.e1000_base_t ||
id->base.e100_base_lx ||
id->base.e100_base_fx)
if (id->base.e1000_base_t)
return PHY_INTERFACE_MODE_SGMII;
if (phylink_test(link_modes, 1000baseX_Full))

13
drivers/net/phy/sfp.c
View File

@ -1489,18 +1489,7 @@ static void sfp_sm_fault(struct sfp *sfp, unsigned int next_state, bool warn)
static void sfp_sm_probe_for_phy(struct sfp *sfp)
{
/* Setting the serdes link mode is guesswork: there's no
* field in the EEPROM which indicates what mode should
* be used.
*
* If it's a gigabit-only fiber module, it probably does
* not have a PHY, so switch to 802.3z negotiation mode.
* Otherwise, switch to SGMII mode (which is required to
* support non-gigabit speeds) and probe for a PHY.
*/
if (sfp->id.base.e1000_base_t ||
sfp->id.base.e100_base_lx ||
sfp->id.base.e100_base_fx)
if (sfp->id.base.e1000_base_t)
sfp_sm_probe_phy(sfp);
}