Commit 50e96acb authored by Russell King (Oracle)'s avatar Russell King (Oracle) Committed by Jakub Kicinski
Browse files

net: sfp: add quirk for 2.5G copper SFP 



Add a quirk for a copper SFP that identifies itself as "OEM"
"SFP-2.5G-T". This module's PHY is inaccessible, and can only run
at 2500base-X with the host without negotiation. Add a quirk to
enable the 2500base-X interface mode with 2500base-T support, and
disable autonegotiation.

Reported-by: default avatarFrank Wunderlich <frank-w@public-files.de>
Tested-by: default avatarFrank Wunderlich <frank-w@public-files.de>
Signed-off-by: default avatarRussell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: default avatarSimon Horman <simon.horman@corigine.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 8110633d

drivers/net/phy/sfp.c

+18 −0
Original line number Diff line number Diff line
@@ -360,6 +360,23 @@ static void sfp_quirk_2500basex(const struct sfp_eeprom_id *id, 
	__set_bit(PHY_INTERFACE_MODE_2500BASEX, interfaces);

}



static void sfp_quirk_disable_autoneg(const struct sfp_eeprom_id *id,

				      unsigned long *modes,

				      unsigned long *interfaces)

{

	linkmode_clear_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, modes);

}



static void sfp_quirk_oem_2_5g(const struct sfp_eeprom_id *id,

			       unsigned long *modes,

			       unsigned long *interfaces)

{

	/* Copper 2.5G SFP */

	linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, modes);

	__set_bit(PHY_INTERFACE_MODE_2500BASEX, interfaces);

	sfp_quirk_disable_autoneg(id, modes, interfaces);

}



static void sfp_quirk_ubnt_uf_instant(const struct sfp_eeprom_id *id,

				      unsigned long *modes,

				      unsigned long *interfaces)
@@ -401,6 +418,7 @@ static const struct sfp_quirk sfp_quirks[] = { 
	SFP_QUIRK_M("UBNT", "UF-INSTANT", sfp_quirk_ubnt_uf_instant),



	SFP_QUIRK_F("OEM", "SFP-10G-T", sfp_fixup_rollball_cc),

	SFP_QUIRK_M("OEM", "SFP-2.5G-T", sfp_quirk_oem_2_5g),

	SFP_QUIRK_F("OEM", "RTSFP-10", sfp_fixup_rollball_cc),

	SFP_QUIRK_F("OEM", "RTSFP-10G", sfp_fixup_rollball_cc),

	SFP_QUIRK_F("Turris", "RTSFP-10", sfp_fixup_rollball),