[RFC v4 3/9] wifi: cfg80211: extend interface combination check for multi-radio
Felix Fietkau
nbd at nbd.name
Fri Jun 7 09:05:42 PDT 2024
Add a field in struct iface_combination_params to check per-radio
interface combinations instead of per-wiphy ones.
Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
include/net/cfg80211.h | 4 ++++
net/mac80211/util.c | 5 ++++-
net/wireless/rdev-ops.h | 17 +++++++++++++++++
net/wireless/trace.h | 5 +++++
net/wireless/util.c | 33 ++++++++++++++++++++++++++-------
5 files changed, 56 insertions(+), 8 deletions(-)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 8a9ef59413d8..307b77e166c1 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1595,6 +1595,7 @@ struct cfg80211_color_change_settings {
*
* Used to pass interface combination parameters
*
+ * @radio_idx: wiphy radio index or -1 for global
* @num_different_channels: the number of different channels we want
* to use for verification
* @radar_detect: a bitmap where each bit corresponds to a channel
@@ -1608,6 +1609,7 @@ struct cfg80211_color_change_settings {
* the verification
*/
struct iface_combination_params {
+ int radio_idx;
int num_different_channels;
u8 radar_detect;
int iftype_num[NUM_NL80211_IFTYPES];
@@ -4577,6 +4579,7 @@ struct mgmt_frame_regs {
*
* @set_hw_timestamp: Enable/disable HW timestamping of TM/FTM frames.
* @set_ttlm: set the TID to link mapping.
+ * @get_radio_mask: get bitmask of radios in use
*/
struct cfg80211_ops {
int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@@ -4938,6 +4941,7 @@ struct cfg80211_ops {
struct cfg80211_set_hw_timestamp *hwts);
int (*set_ttlm)(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_ttlm_params *params);
+ u32 (*get_radio_mask)(struct wiphy *wiphy, struct net_device *dev);
};
/*
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 927f752a0209..0d2927e53114 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -3940,6 +3940,7 @@ int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
int total = 1;
struct iface_combination_params params = {
.radar_detect = radar_detect,
+ .radio_idx = -1,
};
lockdep_assert_wiphy(local->hw.wiphy);
@@ -4030,7 +4031,9 @@ int ieee80211_max_num_channels(struct ieee80211_local *local)
struct ieee80211_chanctx *ctx;
u32 max_num_different_channels = 1;
int err;
- struct iface_combination_params params = {0};
+ struct iface_combination_params params = {
+ .radio_idx = -1,
+ };
lockdep_assert_wiphy(local->hw.wiphy);
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
index 43897a5269b6..56ac6410f4b0 100644
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -1542,4 +1542,21 @@ rdev_set_ttlm(struct cfg80211_registered_device *rdev,
return ret;
}
+
+static inline u32
+rdev_get_radio_mask(struct cfg80211_registered_device *rdev,
+ struct net_device *dev)
+{
+ struct wiphy *wiphy = &rdev->wiphy;
+ u32 ret;
+
+ if (!rdev->ops->get_radio_mask)
+ return 0;
+
+ trace_rdev_get_radio_mask(wiphy, dev);
+ ret = rdev->ops->get_radio_mask(wiphy, dev);
+ trace_rdev_return_int(wiphy, ret);
+
+ return ret;
+}
#endif /* __CFG80211_RDEV_OPS */
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index 14cfa0aba93a..12081e81f9c5 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -4081,6 +4081,11 @@ TRACE_EVENT(cfg80211_links_removed,
__entry->link_mask)
);
+DEFINE_EVENT(wiphy_netdev_evt, rdev_get_radio_mask,
+ TP_PROTO(struct wiphy *wiphy, struct net_device *netdev),
+ TP_ARGS(wiphy, netdev)
+);
+
#endif /* !__RDEV_OPS_TRACE || TRACE_HEADER_MULTI_READ */
#undef TRACE_INCLUDE_PATH
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 2bde8a354631..3da04ceb6054 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -2305,13 +2305,16 @@ static int cfg80211_wdev_bi(struct wireless_dev *wdev)
static void cfg80211_calculate_bi_data(struct wiphy *wiphy, u32 new_beacon_int,
u32 *beacon_int_gcd,
- bool *beacon_int_different)
+ bool *beacon_int_different,
+ int radio_idx)
{
+ struct cfg80211_registered_device *rdev;
struct wireless_dev *wdev;
*beacon_int_gcd = 0;
*beacon_int_different = false;
+ rdev = wiphy_to_rdev(wiphy);
list_for_each_entry(wdev, &wiphy->wdev_list, list) {
int wdev_bi;
@@ -2319,6 +2322,11 @@ static void cfg80211_calculate_bi_data(struct wiphy *wiphy, u32 new_beacon_int,
if (wdev->valid_links)
continue;
+ /* skip wdevs not active on the given wiphy radio */
+ if (radio_idx >= 0 &&
+ !(rdev_get_radio_mask(rdev, wdev->netdev) & BIT(radio_idx)))
+ continue;
+
wdev_bi = cfg80211_wdev_bi(wdev);
if (!wdev_bi)
@@ -2366,14 +2374,19 @@ int cfg80211_iter_combinations(struct wiphy *wiphy,
void *data),
void *data)
{
+ const struct wiphy_radio *radio = NULL;
+ const struct ieee80211_iface_combination *c, *cs;
const struct ieee80211_regdomain *regdom;
enum nl80211_dfs_regions region = 0;
- int i, j, iftype;
+ int i, j, n, iftype;
int num_interfaces = 0;
u32 used_iftypes = 0;
u32 beacon_int_gcd;
bool beacon_int_different;
+ if (params->radio_idx >= 0)
+ radio = &wiphy->radio[params->radio_idx];
+
/*
* This is a bit strange, since the iteration used to rely only on
* the data given by the driver, but here it now relies on context,
@@ -2385,7 +2398,8 @@ int cfg80211_iter_combinations(struct wiphy *wiphy,
* interfaces (while being brought up) and channel/radar data.
*/
cfg80211_calculate_bi_data(wiphy, params->new_beacon_int,
- &beacon_int_gcd, &beacon_int_different);
+ &beacon_int_gcd, &beacon_int_different,
+ params->radio_idx);
if (params->radar_detect) {
rcu_read_lock();
@@ -2402,13 +2416,18 @@ int cfg80211_iter_combinations(struct wiphy *wiphy,
used_iftypes |= BIT(iftype);
}
- for (i = 0; i < wiphy->n_iface_combinations; i++) {
- const struct ieee80211_iface_combination *c;
+ if (radio) {
+ cs = radio->iface_combinations;
+ n = radio->n_iface_combinations;
+ } else {
+ cs = wiphy->iface_combinations;
+ n = wiphy->n_iface_combinations;
+ }
+ for (i = 0; i < n; i++) {
struct ieee80211_iface_limit *limits;
u32 all_iftypes = 0;
- c = &wiphy->iface_combinations[i];
-
+ c = &cs[i];
if (num_interfaces > c->max_interfaces)
continue;
if (params->num_different_channels > c->num_different_channels)
--
git-series 0.9.1
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