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-rw-r--r--include/linux/mii.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/mii.h b/include/linux/mii.h
index 14ecb2e114f1..359fba880274 100644
--- a/include/linux/mii.h
+++ b/include/linux/mii.h
@@ -240,6 +240,22 @@ static inline unsigned int mii_duplex (unsigned int duplex_lock,
}
/**
+ * mii_advertise_flowctrl - get flow control advertisement flags
+ * @cap: Flow control capabilities (FLOW_CTRL_RX, FLOW_CTRL_TX or both)
+ */
+static inline u16 mii_advertise_flowctrl(int cap)
+{
+ u16 adv = 0;
+
+ if (cap & FLOW_CTRL_RX)
+ adv = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+ if (cap & FLOW_CTRL_TX)
+ adv ^= ADVERTISE_PAUSE_ASYM;
+
+ return adv;
+}
+
+/**
* mii_resolve_flowctrl_fdx
* @lcladv: value of MII ADVERTISE register
* @rmtadv: value of MII LPA register