From: Yuiko Oshino <yuiko.osh...@microchip.com>
Signed-off-by: Yuiko Oshino <yuiko.osh...@microchip.com>
---
Changes in v3:
- This patch is added to a series.
Changes in v2:
- The patch's tag is changed to net:.
include/linux/mii.h | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/include/linux/mii.h b/include/linux/mii.h
index 66b83d8..19afb74 100644
--- a/include/linux/mii.h
+++ b/include/linux/mii.h
@@ -190,4 +190,27 @@ static inline unsigned int mii_duplex (unsigned int
duplex_lock,
return 0;
}
+/**
+ * mii_resolve_flowctrl_fdx
+ * @lcladv: value of MII ADVERTISE register
+ * @rmtadv: value of MII LPA register
+ *
+ * Resolve full duplex flow control as per IEEE 802.3-2005 table 28B-3
+ */
+static inline u8 mii_resolve_flowctrl_fdx(u16 lcladv, u16 rmtadv)
+{
+ u8 cap = 0;
+
+ if (lcladv & rmtadv & ADVERTISE_PAUSE_CAP) {
+ cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
+ } else if (lcladv & rmtadv & ADVERTISE_PAUSE_ASYM) {
+ if (lcladv & ADVERTISE_PAUSE_CAP)
+ cap = FLOW_CTRL_RX;
+ else if (rmtadv & ADVERTISE_PAUSE_CAP)
+ cap = FLOW_CTRL_TX;
+ }
+
+ return cap;
+}
+
#endif /* __LINUX_MII_H__ */
--
2.7.4
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
