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| author |   Russell King <rmk+kernel@armlinux.org.uk> | 2020-02-15 15:49:27 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-02-16 19:39:44 -0800 |
| commit | a87ae8a963bde755b0962bcc18db83d611f63e7a (patch) | |
| tree | 9fa705afcdce8ca1555396d433e68b1ac918ed7a /include/linux/linkmode.h | |
| parent | net: linkmode: make linkmode_test_bit() take const pointer (diff) | |
| download | linux-dev-a87ae8a963bde755b0962bcc18db83d611f63e7a.tar.xz linux-dev-a87ae8a963bde755b0962bcc18db83d611f63e7a.zip | |
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.h | 4 |
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 */ |