diff options
| author |   Maxime Chevallier <maxime.chevallier@bootlin.com> | 2025-03-07 18:36:01 +0100 |
|---|---|---|
| committer |   Paolo Abeni <pabeni@redhat.com> | 2025-03-18 09:03:11 +0100 |
| commit | 4823ed0609194e164bcacac04a610dd86717689f (patch) | |
| tree | 1f5c084426fcf05909d28e6d5a3057dced7fa3da /drivers/net/phy/phy_caps.c | |
| parent | net: phy: phy_caps: Move phy_speeds to phy_caps (diff) | |
| download | wireguard-linux-4823ed0609194e164bcacac04a610dd86717689f.tar.xz wireguard-linux-4823ed0609194e164bcacac04a610dd86717689f.zip | |
net: phy: phy_caps: Move __set_linkmode_max_speed to phy_caps
Convert the __set_linkmode_max_speed to use the link_capabilities array.
This makes it easy to clamp the linkmodes to a given max speed.
Introduce a new helper phy_caps_linkmode_max_speed to replace the
previous one that used phy_settings.
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20250307173611.129125-5-maxime.chevallier@bootlin.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/phy/phy_caps.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/net/phy/phy_caps.c b/drivers/net/phy/phy_caps.c index 8ce91257160f..d43493884ff7 100644 --- a/drivers/net/phy/phy_caps.c +++ b/drivers/net/phy/phy_caps.c @@ -60,6 +60,9 @@ static int speed_duplex_to_capa(int speed, unsigned int duplex) #define for_each_link_caps_asc_speed(cap) \ for (cap = link_caps; cap < &link_caps[__LINK_CAPA_MAX]; cap++) +#define for_each_link_caps_desc_speed(cap) \ + for (cap = &link_caps[__LINK_CAPA_MAX - 1]; cap >= link_caps; cap--) + /** * phy_caps_init() - Initializes the link_caps array from the link_mode_params. * @@ -121,3 +124,19 @@ size_t phy_caps_speeds(unsigned int *speeds, size_t size, return count; } + +/** + * phy_caps_linkmode_max_speed() - Clamp a linkmodes set to a max speed + * @max_speed: Speed limit for the linkmode set + * @linkmodes: Linkmodes to limit + */ +void phy_caps_linkmode_max_speed(u32 max_speed, unsigned long *linkmodes) +{ + struct link_capabilities *lcap; + + for_each_link_caps_desc_speed(lcap) + if (lcap->speed > max_speed) + linkmode_andnot(linkmodes, linkmodes, lcap->linkmodes); + else + break; +} |