This function is convenient for MAC drivers. They can use it to add or
remove particular link modes based on capabilities (such as if half
duplex is not supported for a particular interface mode).
Signed-off-by: Sean Anderson <[email protected]>
---
(no changes since v1)
drivers/net/phy/phylink.c | 12 ++++++++++--
include/linux/phylink.h | 1 +
2 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index e9d62f9598f9..c5c3f0b62d7f 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -155,8 +155,15 @@ static const char *phylink_an_mode_str(unsigned int mode)
return mode < ARRAY_SIZE(modestr) ? modestr[mode] : "unknown";
}
-static void phylink_caps_to_linkmodes(unsigned long *linkmodes,
- unsigned long caps)
+/**
+ * phylink_caps_to_linkmodes() - Convert capabilities to ethtool link modes
+ * @linkmodes: ethtool linkmode mask (must be already initialised)
+ * @caps: bitmask of MAC capabilities
+ *
+ * Set all possible pause, speed and duplex linkmodes in @linkmodes that are
+ * supported by the @caps. @linkmodes must have been initialised previously.
+ */
+void phylink_caps_to_linkmodes(unsigned long *linkmodes, unsigned long caps)
{
if (caps & MAC_SYM_PAUSE)
__set_bit(ETHTOOL_LINK_MODE_Pause_BIT, linkmodes);
@@ -295,6 +302,7 @@ static void phylink_caps_to_linkmodes(unsigned long *linkmodes,
__set_bit(ETHTOOL_LINK_MODE_400000baseCR4_Full_BIT, linkmodes);
}
}
+EXPORT_SYMBOL_GPL(phylink_caps_to_linkmodes);
/**
* phylink_get_linkmodes() - get acceptable link modes
diff --git a/include/linux/phylink.h b/include/linux/phylink.h
index 1f997e14bf80..7cf26d7a522d 100644
--- a/include/linux/phylink.h
+++ b/include/linux/phylink.h
@@ -547,6 +547,7 @@ void pcs_link_up(struct phylink_pcs *pcs, unsigned int mode,
phy_interface_t interface, int speed, int duplex);
#endif
+void phylink_caps_to_linkmodes(unsigned long *linkmodes, unsigned long caps);
void phylink_get_linkmodes(unsigned long *linkmodes, phy_interface_t interface,
unsigned long mac_capabilities);
void phylink_generic_validate(struct phylink_config *config,
--
2.35.1.1320.gc452695387.dirty