From 89595190058c6e9ca4a8ca7d49be3fc8d2395e79 Mon Sep 17 00:00:00 2001 From: Roopni Devanathan Date: Sun, 15 Jun 2025 13:53:11 +0530 Subject: [PATCH] wifi: cfg80211: Report per-radio RTS threshold to userspace In case of multi-radio wiphys, with per-radio RTS threshold brought into use, RTS threshold for each radio in a wiphy can be recorded in wiphy parameter - wiphy_radio_cfg, as an array. Add a new attribute - NL80211_WIPHY_RADIO_ATTR_RTS_THRESHOLD in nested parameter - NL80211_ATTR_WIPHY_RADIOS. When a request for getting RTS threshold for a particular radio is received, parse the radio id and get the required data. Add this data to the newly added nested attribute NL80211_WIPHY_RADIO_ATTR_RTS_THRESHOLD. Add support to report this data to userspace. Signed-off-by: Roopni Devanathan Link: https://patch.msgid.link/20250615082312.619639-4-quic_rdevanat@quicinc.com Signed-off-by: Johannes Berg --- include/uapi/linux/nl80211.h | 2 ++ net/wireless/nl80211.c | 6 ++++++ 2 files changed, 8 insertions(+) diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 2a71149c3065d..39460334dafb3 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -8106,6 +8106,7 @@ enum nl80211_ap_settings_flags { * and contains attributes defined in &enum nl80211_if_combination_attrs. * @NL80211_WIPHY_RADIO_ATTR_ANTENNA_MASK: bitmask (u32) of antennas * connected to this radio. + * @NL80211_WIPHY_RADIO_ATTR_RTS_THRESHOLD: RTS threshold (u32) of this radio. * * @__NL80211_WIPHY_RADIO_ATTR_LAST: Internal * @NL80211_WIPHY_RADIO_ATTR_MAX: Highest attribute @@ -8117,6 +8118,7 @@ enum nl80211_wiphy_radio_attrs { NL80211_WIPHY_RADIO_ATTR_FREQ_RANGE, NL80211_WIPHY_RADIO_ATTR_INTERFACE_COMBINATION, NL80211_WIPHY_RADIO_ATTR_ANTENNA_MASK, + NL80211_WIPHY_RADIO_ATTR_RTS_THRESHOLD, /* keep last */ __NL80211_WIPHY_RADIO_ATTR_LAST, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index b0176090182ca..70bfe2bfdcc71 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -2447,6 +2447,7 @@ fail: static int nl80211_put_radio(struct wiphy *wiphy, struct sk_buff *msg, int idx) { const struct wiphy_radio *r = &wiphy->radio[idx]; + const struct wiphy_radio_cfg *rcfg = &wiphy->radio_cfg[idx]; struct nlattr *radio, *freq; int i; @@ -2457,6 +2458,11 @@ static int nl80211_put_radio(struct wiphy *wiphy, struct sk_buff *msg, int idx) if (nla_put_u32(msg, NL80211_WIPHY_RADIO_ATTR_INDEX, idx)) goto nla_put_failure; + if (rcfg->rts_threshold && + nla_put_u32(msg, NL80211_WIPHY_RADIO_ATTR_RTS_THRESHOLD, + rcfg->rts_threshold)) + goto nla_put_failure; + if (r->antenna_mask && nla_put_u32(msg, NL80211_WIPHY_RADIO_ATTR_ANTENNA_MASK, r->antenna_mask)) -- 2.47.2