From 9004a14cb688c69194002aa2fadda4433c3b79fb Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Sat, 16 Feb 2019 17:26:05 +0100
Subject: [PATCH] net: phy: add helper mii_10gbt_stat_mod_linkmode_lpa_t
Similar to the existing helpers for the Clause 22 registers add helper
mii_10gbt_stat_mod_linkmode_lpa_t.
Note that this helper is defined in linux/mdio.h, not like the
Clause 22 helpers in linux/mii.h. Reason is that the Clause 45 register
constants are defined in uapi/linux/mdio.h. And uapi/linux/mdio.h
includes linux/mii.h before defining the C45 register constants.
v2:
- remove helpers that don't have users in this series
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mdio.h | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/include/linux/mdio.h b/include/linux/mdio.h
index dd46828b4c476..3e99ae3ed87f6 100644
--- a/include/linux/mdio.h
+++ b/include/linux/mdio.h
@@ -286,6 +286,25 @@ static inline u32 linkmode_adv_to_mii_10gbt_adv_t(unsigned long *advertising)
return result;
}
+/**
+ * mii_10gbt_stat_mod_linkmode_lpa_t
+ * @advertising: target the linkmode advertisement settings
+ * @adv: value of the C45 10GBASE-T AN STATUS register
+ *
+ * A small helper function that translates C45 10GBASE-T AN STATUS register bits
+ * to linkmode advertisement settings. Other bits in advertising aren't changed.
+ */
+static inline void mii_10gbt_stat_mod_linkmode_lpa_t(unsigned long *advertising,
+ u32 lpa)
+{
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
+ advertising, lpa & MDIO_AN_10GBT_STAT_LP2_5G);
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
+ advertising, lpa & MDIO_AN_10GBT_STAT_LP5G);
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
+ advertising, lpa & MDIO_AN_10GBT_STAT_LP10G);
+}
+
int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
--
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