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authorAndrew Lunn <andrew@lunn.ch>2018-09-29 23:04:13 +0200
committerDavid S. Miller <davem@davemloft.net>2018-10-01 22:55:36 -0700
commit5f991f7bddc991ecc3c8a009ffd76fccff4661c7 (patch)
tree041625dea9f72ac77fef229b92476238619ab91a /include/linux/mii.h
parentedc7ccbbcf32b97c7d26cd556f364eb4f22c4285 (diff)
net: phy: Add helper for advertise to lcl value
Add a helper to convert the local advertising to an LCL capabilities, which is then used to resolve pause flow control settings. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/mii.h')
-rw-r--r--include/linux/mii.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/mii.h b/include/linux/mii.h
index 8c7da9473ad9..9ed49c8261d0 100644
--- a/include/linux/mii.h
+++ b/include/linux/mii.h
@@ -335,6 +335,25 @@ static inline void mii_adv_to_linkmode_adv_t(unsigned long *advertising,
}
/**
+ * ethtool_adv_to_lcl_adv_t
+ * @advertising:pointer to ethtool advertising
+ *
+ * A small helper function that translates ethtool advertising to LVL
+ * pause capabilities.
+ */
+static inline u32 ethtool_adv_to_lcl_adv_t(u32 advertising)
+{
+ u32 lcl_adv = 0;
+
+ if (advertising & ADVERTISED_Pause)
+ lcl_adv |= ADVERTISE_PAUSE_CAP;
+ if (advertising & ADVERTISED_Asym_Pause)
+ lcl_adv |= ADVERTISE_PAUSE_ASYM;
+
+ return lcl_adv;
+}
+
+/**
* mii_advertise_flowctrl - get flow control advertisement flags
* @cap: Flow control capabilities (FLOW_CTRL_RX, FLOW_CTRL_TX or both)
*/