summaryrefslogtreecommitdiff
path: root/include/linux/linkmode.h
AgeCommit message (Collapse)AuthorFilesLines
2020-07-21linkmode: introduce linkmode_intersects()Alexander Lobakin1-0/+6
Add a new helper to find intersections between Ethtool link modes, linkmode_intersects(), similar to the other linkmode helpers. Signed-off-by: Alexander Lobakin <alobakin@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-17net: add linkmode helper for setting flow control advertisementRussell King1-0/+2
Add a linkmode helper to set the flow control advertisement in an ethtool linkmode mask according to the tx/rx capabilities. This implementation is moved from phylib, and documented with an analysis of its shortcomings. 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>
2020-02-17net: add helpers to resolve negotiated flow controlRussell King1-0/+4
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>
2020-02-17net: linkmode: make linkmode_test_bit() take const pointerRussell King1-1/+1
linkmode_test_bit() does not modify the address; test_bit() is also declared const volatile for the same reason. There's no need for linkmode_test_bit() to be any different, and allows implementation of helpers that take a const linkmode pointer. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-16net: phylink: use more linkmode_*Russell King1-0/+6
Use more linkmode_* helpers rather than open-coding the bitmap operations. 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>
2018-12-06net: mii: Rename mii_stat1000_to_linkmode_lpa_tAndrew Lunn1-0/+9
Rename mii_stat1000_to_linkmode_lpa_t to mii_stat1000_mod_linkmode_lpa_t to indicate it modifies the passed linkmode bitmap, without clearing any other bits. Add a helper to set/clear bits in a linkmode. Use this helper to ensure bit are clear which the stat1000 indicates should not be set. Fixes: c0ec3c273677 ("net: phy: Convert u32 phydev->lp_advertising to linkmode") Suggested-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-02net: phy: Replace phy driver features u32 with link_mode bitmapAndrew Lunn1-0/+9
This is one step in allowing phylib to make use of link_mode bitmaps, instead of u32 for supported and advertised features. Convert the phy drivers to use bitmaps to indicates the features they support. Build bitmap equivalents of the u32 values at runtime, and have the drivers point to the appropriate bitmap. These bitmaps are shared, and we don't want a driver to modify them. So mark them __ro_after_init. Within phylib, the features bitmap is currently turned back into a u32. This will be removed once the whole of phylib, and the drivers are converted to use bitmaps. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-02net: phy: Move linkmode helpers to somewhere publicAndrew Lunn1-0/+67
phylink has some useful helpers to working with linkmode bitmaps. Move them to there own header so other code can use them. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>