netdev - [PATCH net-next 2/2] net: sfp: add quirk for FS's DAC10G SFP (SFPP-PC01)

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Date: Fri, 21 Jul 2023 11:30:57 +0530
From: Raju Lakkaraju <Raju.Lakkaraju@...rochip.com>
To: <netdev@...r.kernel.org>
CC: <davem@...emloft.net>, <kuba@...nel.org>, <linux-kernel@...r.kernel.org>,
	<andrew@...n.ch>, <linux@...linux.org.uk>, <UNGLinuxDriver@...rochip.com>
Subject: [PATCH net-next 2/2] net: sfp: add quirk for FS's DAC10G SFP (SFPP-PC01)

Add a quirk for a DAC10G SFP that identifies itself as "FS" "SFPP-PC01".
Add a quirk to enable the SGMII interface, modes 2500base-T, 1000base-T,
100base-T/Full and 100base-T/Half support.

Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@...rochip.com>
---
 drivers/net/phy/sfp.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index ee049efdf71b..80d2680f08ab 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -421,6 +421,18 @@ static void sfp_quirk_oem_2_5g(const struct sfp_eeprom_id *id,
 	sfp_quirk_disable_autoneg(id, modes, interfaces);
 }
 
+static void sfp_quirk_fs_dac(const struct sfp_eeprom_id *id,
+			     unsigned long *modes,
+			     unsigned long *interfaces)
+{
+	/* Fiberstore(FS)'s DAC SFP (SFPP-PC01) */
+	linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, modes);
+	linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, modes);
+	linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, modes);
+	linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT, modes);
+	__set_bit(PHY_INTERFACE_MODE_SGMII, interfaces);
+}
+
 static void sfp_quirk_ubnt_uf_instant(const struct sfp_eeprom_id *id,
 				      unsigned long *modes,
 				      unsigned long *interfaces)
@@ -465,6 +477,8 @@ static const struct sfp_quirk sfp_quirks[] = {
 
 	// FS 2.5G Base-T
 	SFP_QUIRK_M("FS", "SFP-2.5G-T", sfp_quirk_oem_2_5g),
+	// FS DAC10G (SFPP-PC01)
+	SFP_QUIRK_M("FS", "SFPP-PC01", sfp_quirk_fs_dac),
 
 	// Lantech 8330-262D-E can operate at 2500base-X, but incorrectly report
 	// 2500MBd NRZ in their EEPROM
-- 
2.25.1