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authorRussell King <rmk+kernel@armlinux.org.uk>2020-02-15 18:49:27 +0300
committerDavid S. Miller <davem@davemloft.net>2020-02-17 06:39:44 +0300
commita87ae8a963bde755b0962bcc18db83d611f63e7a (patch)
tree9fa705afcdce8ca1555396d433e68b1ac918ed7a /include/linux/linkmode.h
parent8062e2333f8f7dcd5627e22b99e18d1cbb53eedb (diff)
downloadlinux-a87ae8a963bde755b0962bcc18db83d611f63e7a.tar.xz
net: add helpers to resolve negotiated flow control
Add a couple of helpers to resolve negotiated flow control. Two helpers are provided: - linkmode_resolve_pause() which takes the link partner and local advertisements, and decodes whether we should enable TX or RX pause at the MAC. This is useful outside of phylib, e.g. in phylink. - phy_get_pause(), which returns the TX/RX enablement status for the current negotiation results of the PHY. This allows us to centralise the flow control resolution, rather than spreading it around. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/linkmode.h')
-rw-r--r--include/linux/linkmode.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/linkmode.h b/include/linux/linkmode.h
index 8e5b352e44f2..9ec210f31d06 100644
--- a/include/linux/linkmode.h
+++ b/include/linux/linkmode.h
@@ -88,4 +88,8 @@ static inline int linkmode_subset(const unsigned long *src1,
return bitmap_subset(src1, src2, __ETHTOOL_LINK_MODE_MASK_NBITS);
}
+void linkmode_resolve_pause(const unsigned long *local_adv,
+ const unsigned long *partner_adv,
+ bool *tx_pause, bool *rx_pause);
+
#endif /* __LINKMODE_H */