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-rw-r--r--include/net/cfg80211.h18
-rw-r--r--net/wireless/core.c19
-rw-r--r--net/wireless/nl80211.c62
3 files changed, 96 insertions, 3 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index ffd9564fc840..0003733b1e77 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -5548,6 +5548,18 @@ struct wiphy_iftype_akm_suites {
};
/**
+ * struct wiphy_radio_cfg - physical radio config of a wiphy
+ * This structure describes the configurations of a physical radio in a
+ * wiphy. It is used to denote per-radio attributes belonging to a wiphy.
+ *
+ * @rts_threshold: RTS threshold (dot11RTSThreshold);
+ * -1 (default) = RTS/CTS disabled
+ */
+struct wiphy_radio_cfg {
+ u32 rts_threshold;
+};
+
+/**
* struct wiphy_radio_freq_range - wiphy frequency range
* @start_freq: start range edge frequency (kHz)
* @end_freq: end range edge frequency (kHz)
@@ -5802,6 +5814,10 @@ struct wiphy_radio {
* supports enabling HW timestamping for all peers (i.e. no need to
* specify a mac address).
*
+ * @radio_cfg: configuration of radios belonging to a muli-radio wiphy. This
+ * struct contains a list of all radio specific attributes and should be
+ * used only for multi-radio wiphy.
+ *
* @radio: radios belonging to this wiphy
* @n_radio: number of radios
*/
@@ -5891,6 +5907,8 @@ struct wiphy {
void (*reg_notifier)(struct wiphy *wiphy,
struct regulatory_request *request);
+ struct wiphy_radio_cfg *radio_cfg;
+
/* fields below are read-only, assigned by cfg80211 */
const struct ieee80211_regdomain __rcu *regd;
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 5c3c72df0591..f3cd70757ef2 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -995,6 +995,24 @@ int wiphy_register(struct wiphy *wiphy)
wiphy->max_num_akm_suites > CFG80211_MAX_NUM_AKM_SUITES)
return -EINVAL;
+ /* Allocate radio configuration space for multi-radio wiphy */
+ if (wiphy->n_radio > 0) {
+ int idx;
+
+ wiphy->radio_cfg = kcalloc(wiphy->n_radio,
+ sizeof(*wiphy->radio_cfg),
+ GFP_KERNEL);
+ if (!wiphy->radio_cfg)
+ return -ENOMEM;
+ /*
+ * Initialize wiphy radio parameters to IEEE 802.11
+ * MIB default values. RTS threshold is disabled by
+ * default with the special -1 value.
+ */
+ for (idx = 0; idx < wiphy->n_radio; idx++)
+ wiphy->radio_cfg[idx].rts_threshold = (u32)-1;
+ }
+
/* check and set up bitrates */
ieee80211_set_bitrate_flags(wiphy);
@@ -1222,6 +1240,7 @@ void cfg80211_dev_free(struct cfg80211_registered_device *rdev)
void wiphy_free(struct wiphy *wiphy)
{
+ kfree(wiphy->radio_cfg);
put_device(&wiphy->dev);
}
EXPORT_SYMBOL(wiphy_free);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index b40978549790..b0176090182c 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3609,6 +3609,33 @@ static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
return __nl80211_set_channel(rdev, netdev, info, link_id);
}
+static int nl80211_set_wiphy_radio(struct genl_info *info,
+ struct cfg80211_registered_device *rdev,
+ int radio_idx)
+{
+ u32 rts_threshold = 0, old_rts, changed = 0;
+ int result;
+
+ if (!rdev->ops->set_wiphy_params)
+ return -EOPNOTSUPP;
+
+ if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
+ rts_threshold = nla_get_u32(
+ info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
+ changed |= WIPHY_PARAM_RTS_THRESHOLD;
+ }
+
+ old_rts = rdev->wiphy.radio_cfg[radio_idx].rts_threshold;
+
+ rdev->wiphy.radio_cfg[radio_idx].rts_threshold = rts_threshold;
+
+ result = rdev_set_wiphy_params(rdev, radio_idx, changed);
+ if (result)
+ rdev->wiphy.radio_cfg[radio_idx].rts_threshold = old_rts;
+
+ return 0;
+}
+
static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *rdev = NULL;
@@ -3681,6 +3708,8 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
info->attrs[NL80211_ATTR_WIPHY_RADIO_INDEX]);
if (radio_idx >= rdev->wiphy.n_radio)
return -EINVAL;
+
+ return nl80211_set_wiphy_radio(info, rdev, radio_idx);
}
if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
@@ -3893,16 +3922,30 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
if (changed) {
u8 old_retry_short, old_retry_long;
u32 old_frag_threshold, old_rts_threshold;
- u8 old_coverage_class;
+ u8 old_coverage_class, i;
u32 old_txq_limit, old_txq_memory_limit, old_txq_quantum;
+ u32 *old_radio_rts_threshold = NULL;
if (!rdev->ops->set_wiphy_params)
return -EOPNOTSUPP;
+ if (rdev->wiphy.n_radio) {
+ old_radio_rts_threshold = kcalloc(rdev->wiphy.n_radio,
+ sizeof(u32),
+ GFP_KERNEL);
+ if (!old_radio_rts_threshold)
+ return -ENOMEM;
+ }
+
old_retry_short = rdev->wiphy.retry_short;
old_retry_long = rdev->wiphy.retry_long;
old_frag_threshold = rdev->wiphy.frag_threshold;
old_rts_threshold = rdev->wiphy.rts_threshold;
+ if (old_radio_rts_threshold) {
+ for (i = 0 ; i < rdev->wiphy.n_radio; i++)
+ old_radio_rts_threshold[i] =
+ rdev->wiphy.radio_cfg[i].rts_threshold;
+ }
old_coverage_class = rdev->wiphy.coverage_class;
old_txq_limit = rdev->wiphy.txq_limit;
old_txq_memory_limit = rdev->wiphy.txq_memory_limit;
@@ -3914,8 +3957,13 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
rdev->wiphy.retry_long = retry_long;
if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
rdev->wiphy.frag_threshold = frag_threshold;
- if (changed & WIPHY_PARAM_RTS_THRESHOLD)
+ if ((changed & WIPHY_PARAM_RTS_THRESHOLD) &&
+ old_radio_rts_threshold) {
rdev->wiphy.rts_threshold = rts_threshold;
+ for (i = 0 ; i < rdev->wiphy.n_radio; i++)
+ rdev->wiphy.radio_cfg[i].rts_threshold =
+ rdev->wiphy.rts_threshold;
+ }
if (changed & WIPHY_PARAM_COVERAGE_CLASS)
rdev->wiphy.coverage_class = coverage_class;
if (changed & WIPHY_PARAM_TXQ_LIMIT)
@@ -3931,12 +3979,20 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
rdev->wiphy.retry_long = old_retry_long;
rdev->wiphy.frag_threshold = old_frag_threshold;
rdev->wiphy.rts_threshold = old_rts_threshold;
+ if (old_radio_rts_threshold) {
+ for (i = 0 ; i < rdev->wiphy.n_radio; i++)
+ rdev->wiphy.radio_cfg[i].rts_threshold =
+ old_radio_rts_threshold[i];
+ }
rdev->wiphy.coverage_class = old_coverage_class;
rdev->wiphy.txq_limit = old_txq_limit;
rdev->wiphy.txq_memory_limit = old_txq_memory_limit;
rdev->wiphy.txq_quantum = old_txq_quantum;
- return result;
}
+
+ if (old_rts_threshold)
+ kfree(old_radio_rts_threshold);
+ return result;
}
return 0;
generated by cgit (git 2.34.1) at 2025-08-06 15:52:17 +0000