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net: sfp: add quirk for 2.5G copper SFP

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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: Frank Wunderlich <frank-w@public-files.de>
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Russell King (Oracle) 2023-03-21 16:58:51 +00:00 committed by Jakub Kicinski
parent 8110633db4
commit 50e96acbe1
1 changed files with 18 additions and 0 deletions
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18
drivers/net/phy/sfp.c
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@ -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),