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domenico
2025-06-24 14:35:53 +02:00
commit c06fb25d1f
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24
package/kernel/mac80211/patches/subsys/110-mac80211_keep_keys_on_stop_ap.patch Normal file
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@@ -0,0 +1,24 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 27 Oct 2014 00:00:00 +0100
Subject: [PATCH] mac80211: preseve AP mode keys across STA reconnect
Used for AP+STA support in OpenWrt - preserve AP mode keys across STA reconnect
---
net/mac80211/cfg.c | 1 -
1 file changed, 1 deletion(-)
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1649,12 +1649,6 @@ static int ieee80211_stop_ap(struct wiph
__sta_info_flush(sdata, true, link_id);
- ieee80211_remove_link_keys(link, &keys);
- if (!list_empty(&keys)) {
- synchronize_net();
- ieee80211_free_key_list(local, &keys);
- }
-
link_conf->enable_beacon = false;
sdata->beacon_rate_set = false;
sdata->vif.cfg.ssid_len = 0;

52
package/kernel/mac80211/patches/subsys/120-cfg80211_allow_perm_addr_change.patch Normal file
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@@ -0,0 +1,52 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 11 Dec 2014 00:00:00 +0100
Subject: [PATCH] cfg80211: add support for changing the device mac address via
sysfs
---
net/wireless/sysfs.c | 27 ++++++++++++++++++++++-----
1 file changed, 22 insertions(+), 5 deletions(-)
--- a/net/wireless/sysfs.c
+++ b/net/wireless/sysfs.c
@@ -24,18 +24,35 @@ static inline struct cfg80211_registered
return container_of(dev, struct cfg80211_registered_device, wiphy.dev);
}
-#define SHOW_FMT(name, fmt, member) \
+#define SHOW_FMT(name, fmt, member, mode) \
static ssize_t name ## _show(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
return sprintf(buf, fmt "\n", dev_to_rdev(dev)->member); \
} \
-static DEVICE_ATTR_RO(name)
+static DEVICE_ATTR_##mode(name)
-SHOW_FMT(index, "%d", wiphy_idx);
-SHOW_FMT(macaddress, "%pM", wiphy.perm_addr);
-SHOW_FMT(address_mask, "%pM", wiphy.addr_mask);
+static ssize_t macaddress_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ u8 mac[ETH_ALEN];
+
+ if (!mac_pton(buf, mac))
+ return -EINVAL;
+
+ if (buf[3 * ETH_ALEN - 1] && buf[3 * ETH_ALEN - 1] != '\n')
+ return -EINVAL;
+
+ memcpy(dev_to_rdev(dev)->wiphy.perm_addr, mac, ETH_ALEN);
+
+ return strnlen(buf, len);
+}
+
+SHOW_FMT(index, "%d", wiphy_idx, RO);
+SHOW_FMT(macaddress, "%pM", wiphy.perm_addr, RW);
+SHOW_FMT(address_mask, "%pM", wiphy.addr_mask, RO);
static ssize_t name_show(struct device *dev,
struct device_attribute *attr,

27
package/kernel/mac80211/patches/subsys/130-disable_auto_vif.patch Normal file
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@@ -0,0 +1,27 @@
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -1581,24 +1581,6 @@ int ieee80211_register_hw(struct ieee802
ieee80211_check_wbrf_support(local);
- rtnl_lock();
- wiphy_lock(hw->wiphy);
-
- /* add one default STA interface if supported */
- if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION) &&
- !ieee80211_hw_check(hw, NO_AUTO_VIF)) {
- struct vif_params params = {0};
-
- result = ieee80211_if_add(local, "wlan%d", NET_NAME_ENUM, NULL,
- NL80211_IFTYPE_STATION, &params);
- if (result)
- wiphy_warn(local->hw.wiphy,
- "Failed to add default virtual iface\n");
- }
-
- wiphy_unlock(hw->wiphy);
- rtnl_unlock();
-
#ifdef CONFIG_INET
local->ifa_notifier.notifier_call = ieee80211_ifa_changed;
result = register_inetaddr_notifier(&local->ifa_notifier);

19
package/kernel/mac80211/patches/subsys/210-ap_scan.patch Normal file
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@@ -0,0 +1,19 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 3 Oct 2012 00:00:00 +0200
Subject: [PATCH] mac80211: allow scans in access point mode (for site survey)
---
net/mac80211/cfg.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2863,6 +2863,8 @@ static int ieee80211_scan(struct wiphy *
*/
fallthrough;
case NL80211_IFTYPE_AP:
+ /* skip check */
+ break;
/*
* If the scan has been forced (and the driver supports
* forcing), don't care about being beaconing already.

40
package/kernel/mac80211/patches/subsys/220-allow-ibss-mixed.patch Normal file
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@@ -0,0 +1,40 @@
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Mon, 24 Feb 2020 00:00:00 +0100
Subject: [PATCH] mac80211: Allow IBSS mode and different beacon intervals
ath10k-ct supports the combination to select IBSS (ADHOC) mode and
different beacon intervals together. mac80211 does not like this
combination, but Ben says this is ok, so remove this check.
ath10k-ct starting with version 5.2 allows the combination of
NL80211_IFTYPE_ADHOC and beacon_int_min_gcd in ath10k_10x_ct_if_comb
which triggers this warning. Ben told me that this is not a big problem
and we should ignore this.
---
net/wireless/core.c | 15 ---------------
1 file changed, 15 deletions(-)
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -654,21 +654,6 @@ static int wiphy_verify_combinations(str
c->limits[j].max > 1))
return -EINVAL;
- /*
- * This isn't well-defined right now. If you have an
- * IBSS interface, then its beacon interval may change
- * by joining other networks, and nothing prevents it
- * from doing that.
- * So technically we probably shouldn't even allow AP
- * and IBSS in the same interface, but it seems that
- * some drivers support that, possibly only with fixed
- * beacon intervals for IBSS.
- */
- if (WARN_ON(types & BIT(NL80211_IFTYPE_ADHOC) &&
- c->beacon_int_min_gcd)) {
- return -EINVAL;
- }
-
cnt += c->limits[j].max;
/*
* Don't advertise an unsupported type

34
package/kernel/mac80211/patches/subsys/230-avoid-crashing-missing-band.patch Normal file
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@@ -0,0 +1,34 @@
From: David Bauer <mail@david-bauer.net>
Date: Thu, 30 Nov 2023 07:32:52 +0100
Subject: [PATCH] mac80211: avoid crashing on invalid band info
Frequent crashes have been observed on MT7916 based platforms. While the
root of these crashes are currently unknown, they happen when decoding
rate information of connected STAs in AP mode. The rate-information is
associated with a band which is not available on the PHY.
Check for this condition in order to avoid crashing the whole system.
This patch should be removed once the roout cause has been found and
fixed.
Link: https://github.com/freifunk-gluon/gluon/issues/2980
Signed-off-by: David Bauer <mail@david-bauer.net>
---
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -2439,6 +2439,13 @@ static void sta_stats_decode_rate(struct
sband = local->hw.wiphy->bands[band];
+ if (!sband) {
+ wiphy_warn(local->hw.wiphy,
+ "Invalid band %d\n",
+ band);
+ break;
+ }
+
if (WARN_ON_ONCE(!sband->bitrates))
break;

38
package/kernel/mac80211/patches/subsys/301-mac80211-sta-randomize-BA-session-dialog-token-alloc.patch Normal file
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@@ -0,0 +1,38 @@
From b478e06a16a8baa00c5ecc87c1d636981f2206d5 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 29 Oct 2019 10:25:25 +0100
Subject: [PATCH] mac80211: sta: randomize BA session dialog token allocator
We currently always start the dialog token generator at zero,
so the first dialog token we use is always 1. This would be
OK if we had a perfect guarantee that we always do a proper
deauth/re-auth handshake, but in IBSS mode this doesn't always
happen properly.
To make problems with block ack (aggregation) sessions getting
stuck less likely, randomize the dialog token so if we start a
new session but the peer still has old state for us, it can
better detect this.
This is really just a workaround to make things a bit more
robust than they are now - a better fix would be to do a full
authentication handshake in IBSS mode upon having discovered a
new station, and on the receiver resetting the state (removing
and re-adding the station) on receiving the authentication
packet.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
net/mac80211/sta_info.c | 1 +
1 file changed, 1 insertion(+)
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -565,6 +565,7 @@ __sta_info_alloc(struct ieee80211_sub_if
spin_lock_init(&sta->ps_lock);
INIT_WORK(&sta->drv_deliver_wk, sta_deliver_ps_frames);
wiphy_work_init(&sta->ampdu_mlme.work, ieee80211_ba_session_work);
+ sta->ampdu_mlme.dialog_token_allocator = get_random_u32_below(U8_MAX);
#ifdef CPTCFG_MAC80211_MESH
if (ieee80211_vif_is_mesh(&sdata->vif)) {
sta->mesh = kzalloc(sizeof(*sta->mesh), gfp);

21
package/kernel/mac80211/patches/subsys/302-mac80211-minstrel_ht-fix-MINSTREL_FRAC-macro.patch Normal file
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@@ -0,0 +1,21 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 28 Apr 2021 21:03:13 +0200
Subject: [PATCH] mac80211: minstrel_ht: fix MINSTREL_FRAC macro
Add missing braces to avoid issues with e.g. using additions in the
div expression
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/rc80211_minstrel_ht.h
+++ b/net/mac80211/rc80211_minstrel_ht.h
@@ -14,7 +14,7 @@
/* scaled fraction values */
#define MINSTREL_SCALE 12
-#define MINSTREL_FRAC(val, div) (((val) << MINSTREL_SCALE) / div)
+#define MINSTREL_FRAC(val, div) (((val) << MINSTREL_SCALE) / (div))
#define MINSTREL_TRUNC(val) ((val) >> MINSTREL_SCALE)
#define EWMA_LEVEL 96 /* ewma weighting factor [/EWMA_DIV] */

30
package/kernel/mac80211/patches/subsys/303-mac80211-minstrel_ht-reduce-fluctuations-in-rate-pro.patch Normal file
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@@ -0,0 +1,30 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Sat, 6 Feb 2021 16:08:01 +0100
Subject: [PATCH] mac80211: minstrel_ht: reduce fluctuations in rate
probability stats
In some scenarios when there is a lot of fluctuation in packet error rates,
rate switching can be amplified when the statistics get skewed by time slots
with very few tries.
Make the input data to the moving average more smooth by adding the
success/attempts count from the last stats window as well. This has the
advantage of smoothing the data without introducing any extra lag to sampling
rates.
This significantly improves rate stability on a strong test link subjected to
periodic noise bursts generated with a SDR
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -769,7 +769,8 @@ minstrel_ht_calc_rate_stats(struct minst
unsigned int cur_prob;
if (unlikely(mrs->attempts > 0)) {
- cur_prob = MINSTREL_FRAC(mrs->success, mrs->attempts);
+ cur_prob = MINSTREL_FRAC(mrs->success + mrs->last_success,
+ mrs->attempts + mrs->last_attempts);
minstrel_filter_avg_add(&mrs->prob_avg,
&mrs->prob_avg_1, cur_prob);
mrs->att_hist += mrs->attempts;

151
package/kernel/mac80211/patches/subsys/304-mac80211-minstrel_ht-rework-rate-downgrade-code-and-.patch Normal file
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@@ -0,0 +1,151 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Sat, 6 Feb 2021 16:33:14 +0100
Subject: [PATCH] mac80211: minstrel_ht: rework rate downgrade code and
max_prob rate selection
The current fallback code for fast rate switching on potentially failing rates
is triggering too often if there is some strong noise on the channel. This can
lead to wild fluctuations in the rate selection.
Additionally, switching down to max_prob_rate can create a significant gap down
in throughput, especially when using only 2 spatial streams, because max_prob_rate
is limited to using fewer streams than the max_tp rates.
In order to improve throughput without reducing reliability too much, use the
rate downgrade code for the max_prob_rate only, and allow the non-downgraded
max_prob_rate to use as many spatial streams as the max_tp rates
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -580,6 +580,14 @@ minstrel_ht_set_best_prob_rate(struct mi
int cur_tp_avg, cur_group, cur_idx;
int max_gpr_group, max_gpr_idx;
int max_gpr_tp_avg, max_gpr_prob;
+ int min_dur;
+
+ min_dur = max(minstrel_get_duration(mi->max_tp_rate[0]),
+ minstrel_get_duration(mi->max_tp_rate[1]));
+
+ /* make the rate at least 18% slower than max tp rates */
+ if (minstrel_get_duration(index) <= min_dur * 19 / 16)
+ return;
cur_group = MI_RATE_GROUP(index);
cur_idx = MI_RATE_IDX(index);
@@ -601,11 +609,6 @@ minstrel_ht_set_best_prob_rate(struct mi
!minstrel_ht_is_legacy_group(max_tp_group))
return;
- /* skip rates faster than max tp rate with lower prob */
- if (minstrel_get_duration(mi->max_tp_rate[0]) > minstrel_get_duration(index) &&
- mrs->prob_avg < max_tp_prob)
- return;
-
max_gpr_group = MI_RATE_GROUP(mg->max_group_prob_rate);
max_gpr_idx = MI_RATE_IDX(mg->max_group_prob_rate);
max_gpr_prob = mi->groups[max_gpr_group].rates[max_gpr_idx].prob_avg;
@@ -663,40 +666,6 @@ minstrel_ht_assign_best_tp_rates(struct
}
-/*
- * Try to increase robustness of max_prob rate by decrease number of
- * streams if possible.
- */
-static inline void
-minstrel_ht_prob_rate_reduce_streams(struct minstrel_ht_sta *mi)
-{
- struct minstrel_mcs_group_data *mg;
- int tmp_max_streams, group, tmp_idx, tmp_prob;
- int tmp_tp = 0;
-
- if (!mi->sta->deflink.ht_cap.ht_supported)
- return;
-
- group = MI_RATE_GROUP(mi->max_tp_rate[0]);
- tmp_max_streams = minstrel_mcs_groups[group].streams;
- for (group = 0; group < ARRAY_SIZE(minstrel_mcs_groups); group++) {
- mg = &mi->groups[group];
- if (!mi->supported[group] || group == MINSTREL_CCK_GROUP)
- continue;
-
- tmp_idx = MI_RATE_IDX(mg->max_group_prob_rate);
- tmp_prob = mi->groups[group].rates[tmp_idx].prob_avg;
-
- if (tmp_tp < minstrel_ht_get_tp_avg(mi, group, tmp_idx, tmp_prob) &&
- (minstrel_mcs_groups[group].streams < tmp_max_streams)) {
- mi->max_prob_rate = mg->max_group_prob_rate;
- tmp_tp = minstrel_ht_get_tp_avg(mi, group,
- tmp_idx,
- tmp_prob);
- }
- }
-}
-
static u16
__minstrel_ht_get_sample_rate(struct minstrel_ht_sta *mi,
enum minstrel_sample_type type)
@@ -1176,8 +1145,6 @@ minstrel_ht_update_stats(struct minstrel
mi->max_prob_rate = tmp_max_prob_rate;
- /* Try to increase robustness of max_prob_rate*/
- minstrel_ht_prob_rate_reduce_streams(mi);
minstrel_ht_refill_sample_rates(mi);
#ifdef CPTCFG_MAC80211_DEBUGFS
@@ -1256,7 +1223,7 @@ minstrel_ht_ri_txstat_valid(struct minst
}
static void
-minstrel_downgrade_rate(struct minstrel_ht_sta *mi, u16 *idx, bool primary)
+minstrel_downgrade_prob_rate(struct minstrel_ht_sta *mi, u16 *idx)
{
int group, orig_group;
@@ -1271,11 +1238,7 @@ minstrel_downgrade_rate(struct minstrel_
minstrel_mcs_groups[orig_group].streams)
continue;
- if (primary)
- *idx = mi->groups[group].max_group_tp_rate[0];
- else
- *idx = mi->groups[group].max_group_tp_rate[1];
- break;
+ *idx = mi->groups[group].max_group_prob_rate;
}
}
@@ -1286,7 +1249,7 @@ minstrel_ht_tx_status(void *priv, struct
struct ieee80211_tx_info *info = st->info;
struct minstrel_ht_sta *mi = priv_sta;
struct ieee80211_tx_rate *ar = info->status.rates;
- struct minstrel_rate_stats *rate, *rate2;
+ struct minstrel_rate_stats *rate;
struct minstrel_priv *mp = priv;
u32 update_interval = mp->update_interval;
bool last, update = false;
@@ -1354,18 +1317,13 @@ minstrel_ht_tx_status(void *priv, struct
/*
* check for sudden death of spatial multiplexing,
* downgrade to a lower number of streams if necessary.
+ * only do this for the max_prob_rate to prevent spurious
+ * rate fluctuations when the link changes suddenly
*/
- rate = minstrel_get_ratestats(mi, mi->max_tp_rate[0]);
+ rate = minstrel_get_ratestats(mi, mi->max_prob_rate);
if (rate->attempts > 30 &&
rate->success < rate->attempts / 4) {
- minstrel_downgrade_rate(mi, &mi->max_tp_rate[0], true);
- update = true;
- }
-
- rate2 = minstrel_get_ratestats(mi, mi->max_tp_rate[1]);
- if (rate2->attempts > 30 &&
- rate2->success < rate2->attempts / 4) {
- minstrel_downgrade_rate(mi, &mi->max_tp_rate[1], false);
+ minstrel_downgrade_prob_rate(mi, &mi->max_prob_rate);
update = true;
}
}

53
package/kernel/mac80211/patches/subsys/305-mac80211-increase-quantum-for-airtime-scheduler.patch Normal file
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@@ -0,0 +1,53 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Sun, 26 Jun 2022 11:43:25 +0200
Subject: [PATCH] mac80211: increase quantum for airtime scheduler
Given the typical AQL budget and queue length, a quantum of 256 with the
default station weight often requires iterating over all queues frequently,
until one of them becomes eligible.
Improve performance by using 8 times station weight as scheduler quantum
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -103,6 +103,8 @@ ieee80211_sta_keep_active(struct sta_inf
return time_before_eq(jiffies, sta->airtime[ac].last_active + HZ / 10);
}
+#define AIRTIME_QUANTUM_SHIFT 3
+
struct ieee80211_bss {
u32 device_ts_beacon, device_ts_presp;
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -4081,7 +4081,7 @@ struct ieee80211_txq *ieee80211_next_txq
if (deficit < 0)
sta->airtime[txqi->txq.ac].deficit +=
- sta->airtime_weight;
+ sta->airtime_weight << AIRTIME_QUANTUM_SHIFT;
if (deficit < 0 || !aql_check) {
list_move_tail(&txqi->schedule_order,
@@ -4224,7 +4224,8 @@ bool ieee80211_txq_may_transmit(struct i
}
sta = container_of(iter->txq.sta, struct sta_info, sta);
if (ieee80211_sta_deficit(sta, ac) < 0)
- sta->airtime[ac].deficit += sta->airtime_weight;
+ sta->airtime[ac].deficit += sta->airtime_weight <<
+ AIRTIME_QUANTUM_SHIFT;
list_move_tail(&iter->schedule_order, &local->active_txqs[ac]);
}
@@ -4232,7 +4233,7 @@ bool ieee80211_txq_may_transmit(struct i
if (sta->airtime[ac].deficit >= 0)
goto out;
- sta->airtime[ac].deficit += sta->airtime_weight;
+ sta->airtime[ac].deficit += sta->airtime_weight << AIRTIME_QUANTUM_SHIFT;
list_move_tail(&txqi->schedule_order, &local->active_txqs[ac]);
spin_unlock_bh(&local->active_txq_lock[ac]);

149
package/kernel/mac80211/patches/subsys/310-cfg80211-allow-grace-period-for-DFS-available-after-.patch Normal file
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@@ -0,0 +1,149 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 14 Sep 2023 13:17:16 +0200
Subject: [PATCH] cfg80211: allow grace period for DFS available after beacon
shutdown
Fixes reconfiguring an AP on a DFS channel in non-ETSI regdomain
Fixes: b35a51c7dd25 ("cfg80211: Make pre-CAC results valid only for ETSI domain")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -187,6 +187,8 @@ enum ieee80211_channel_flags {
* @dfs_state: current state of this channel. Only relevant if radar is required
* on this channel.
* @dfs_state_entered: timestamp (jiffies) when the dfs state was entered.
+ * @dfs_state_last_available: timestamp (jiffies) of the last time when the
+ * channel was available.
* @dfs_cac_ms: DFS CAC time in milliseconds, this is valid for DFS channels.
* @psd: power spectral density (in dBm)
*/
@@ -204,6 +206,7 @@ struct ieee80211_channel {
int orig_mag, orig_mpwr;
enum nl80211_dfs_state dfs_state;
unsigned long dfs_state_entered;
+ unsigned long dfs_state_last_available;
unsigned int dfs_cac_ms;
s8 psd;
};
--- a/net/wireless/ap.c
+++ b/net/wireless/ap.c
@@ -30,6 +30,9 @@ static int ___cfg80211_stop_ap(struct cf
if (!wdev->links[link_id].ap.beacon_interval)
return -ENOENT;
+ cfg80211_update_last_available(wdev->wiphy,
+ &wdev->links[link_id].ap.chandef);
+
err = rdev_stop_ap(rdev, dev, link_id);
if (!err) {
wdev->conn_owner_nlportid = 0;
@@ -41,9 +44,6 @@ static int ___cfg80211_stop_ap(struct cf
if (notify)
nl80211_send_ap_stopped(wdev, link_id);
- /* Should we apply the grace period during beaconing interface
- * shutdown also?
- */
cfg80211_sched_dfs_chan_update(rdev);
}
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -598,6 +598,8 @@ static void cfg80211_set_chans_dfs_state
c->dfs_state = dfs_state;
c->dfs_state_entered = jiffies;
+ if (dfs_state == NL80211_DFS_AVAILABLE)
+ c->dfs_state_last_available = jiffies;
}
}
@@ -1087,6 +1089,49 @@ static bool cfg80211_get_chans_dfs_avail
return true;
}
+static void
+__cfg80211_update_last_available(struct wiphy *wiphy,
+ u32 center_freq,
+ u32 bandwidth)
+{
+ struct ieee80211_channel *c;
+ u32 freq, start_freq, end_freq;
+
+ start_freq = cfg80211_get_start_freq(center_freq, bandwidth);
+ end_freq = cfg80211_get_end_freq(center_freq, bandwidth);
+
+ /*
+ * Check entire range of channels for the bandwidth.
+ * If any channel in between is disabled or has not
+ * had gone through CAC return false
+ */
+ for (freq = start_freq; freq <= end_freq; freq += MHZ_TO_KHZ(20)) {
+ c = ieee80211_get_channel_khz(wiphy, freq);
+ if (!c)
+ return;
+
+ c->dfs_state_last_available = jiffies;
+ }
+}
+
+void cfg80211_update_last_available(struct wiphy *wiphy,
+ const struct cfg80211_chan_def *chandef)
+{
+ int width;
+
+ width = cfg80211_chandef_get_width(chandef);
+ if (width < 0)
+ return;
+
+ __cfg80211_update_last_available(wiphy, MHZ_TO_KHZ(chandef->center_freq1),
+ width);
+ if (chandef->width != NL80211_CHAN_WIDTH_80P80)
+ return;
+
+ __cfg80211_update_last_available(wiphy, MHZ_TO_KHZ(chandef->center_freq2),
+ width);
+}
+
static bool cfg80211_chandef_dfs_available(struct wiphy *wiphy,
const struct cfg80211_chan_def *chandef)
{
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -467,6 +467,8 @@ void cfg80211_set_dfs_state(struct wiphy
enum nl80211_dfs_state dfs_state);
void cfg80211_dfs_channels_update_work(struct work_struct *work);
+void cfg80211_update_last_available(struct wiphy *wiphy,
+ const struct cfg80211_chan_def *chandef);
void cfg80211_sched_dfs_chan_update(struct cfg80211_registered_device *rdev);
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -1037,6 +1037,8 @@ void cfg80211_dfs_channels_update_work(s
if (c->dfs_state == NL80211_DFS_UNAVAILABLE) {
time_dfs_update = IEEE80211_DFS_MIN_NOP_TIME_MS;
radar_event = NL80211_RADAR_NOP_FINISHED;
+ timeout = c->dfs_state_entered +
+ msecs_to_jiffies(time_dfs_update);
} else {
if (regulatory_pre_cac_allowed(wiphy) ||
cfg80211_any_wiphy_oper_chan(wiphy, c))
@@ -1044,11 +1046,10 @@ void cfg80211_dfs_channels_update_work(s
time_dfs_update = REG_PRE_CAC_EXPIRY_GRACE_MS;
radar_event = NL80211_RADAR_PRE_CAC_EXPIRED;
+ timeout = c->dfs_state_last_available +
+ msecs_to_jiffies(time_dfs_update);
}
- timeout = c->dfs_state_entered +
- msecs_to_jiffies(time_dfs_update);
-
if (time_after_eq(jiffies, timeout)) {
c->dfs_state = NL80211_DFS_USABLE;
c->dfs_state_entered = jiffies;

293
package/kernel/mac80211/patches/subsys/320-mac80211-add-AQL-support-for-broadcast-packets.patch Normal file
View File

@@ -0,0 +1,293 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 9 Feb 2024 19:43:40 +0100
Subject: [PATCH] mac80211: add AQL support for broadcast packets
Excessive broadcast traffic with little competing unicast traffic can easily
flood hardware queues, leading to throughput issues. Additionally, filling
the hardware queues with too many packets breaks FQ for broadcast data.
Fix this by enabling AQL for broadcast packets.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -3423,6 +3423,7 @@ enum wiphy_params_flags {
/* The per TXQ device queue limit in airtime */
#define IEEE80211_DEFAULT_AQL_TXQ_LIMIT_L 5000
#define IEEE80211_DEFAULT_AQL_TXQ_LIMIT_H 12000
+#define IEEE80211_DEFAULT_AQL_TXQ_LIMIT_BC 50000
/* The per interface airtime threshold to switch to lower queue limit */
#define IEEE80211_AQL_THRESHOLD 24000
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -215,11 +215,13 @@ static ssize_t aql_pending_read(struct f
"VI %u us\n"
"BE %u us\n"
"BK %u us\n"
+ "BC/MC %u us\n"
"total %u us\n",
atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_VO]),
atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_VI]),
atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_BE]),
atomic_read(&local->aql_ac_pending_airtime[IEEE80211_AC_BK]),
+ atomic_read(&local->aql_bc_pending_airtime),
atomic_read(&local->aql_total_pending_airtime));
return simple_read_from_buffer(user_buf, count, ppos,
buf, len);
@@ -245,7 +247,8 @@ static ssize_t aql_txq_limit_read(struct
"VO %u %u\n"
"VI %u %u\n"
"BE %u %u\n"
- "BK %u %u\n",
+ "BK %u %u\n"
+ "BC/MC %u\n",
local->aql_txq_limit_low[IEEE80211_AC_VO],
local->aql_txq_limit_high[IEEE80211_AC_VO],
local->aql_txq_limit_low[IEEE80211_AC_VI],
@@ -253,7 +256,8 @@ static ssize_t aql_txq_limit_read(struct
local->aql_txq_limit_low[IEEE80211_AC_BE],
local->aql_txq_limit_high[IEEE80211_AC_BE],
local->aql_txq_limit_low[IEEE80211_AC_BK],
- local->aql_txq_limit_high[IEEE80211_AC_BK]);
+ local->aql_txq_limit_high[IEEE80211_AC_BK],
+ local->aql_txq_limit_bc);
return simple_read_from_buffer(user_buf, count, ppos,
buf, len);
}
@@ -279,6 +283,11 @@ static ssize_t aql_txq_limit_write(struc
else
buf[count] = '\0';
+ if (sscanf(buf, "mcast %u", &q_limit_low) == 1) {
+ local->aql_txq_limit_bc = q_limit_low;
+ return count;
+ }
+
if (sscanf(buf, "%u %u %u", &ac, &q_limit_low, &q_limit_high) != 3)
return -EINVAL;
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1351,10 +1351,12 @@ struct ieee80211_local {
spinlock_t handle_wake_tx_queue_lock;
u16 airtime_flags;
+ u32 aql_txq_limit_bc;
u32 aql_txq_limit_low[IEEE80211_NUM_ACS];
u32 aql_txq_limit_high[IEEE80211_NUM_ACS];
u32 aql_threshold;
atomic_t aql_total_pending_airtime;
+ atomic_t aql_bc_pending_airtime;
atomic_t aql_ac_pending_airtime[IEEE80211_NUM_ACS];
const struct ieee80211_ops *ops;
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -952,6 +952,7 @@ struct ieee80211_hw *ieee80211_alloc_hw_
spin_lock_init(&local->rx_path_lock);
spin_lock_init(&local->queue_stop_reason_lock);
+ local->aql_txq_limit_bc = IEEE80211_DEFAULT_AQL_TXQ_LIMIT_BC;
for (i = 0; i < IEEE80211_NUM_ACS; i++) {
INIT_LIST_HEAD(&local->active_txqs[i]);
spin_lock_init(&local->active_txq_lock[i]);
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -2353,13 +2353,28 @@ EXPORT_SYMBOL(ieee80211_sta_recalc_aggre
void ieee80211_sta_update_pending_airtime(struct ieee80211_local *local,
struct sta_info *sta, u8 ac,
- u16 tx_airtime, bool tx_completed)
+ u16 tx_airtime, bool tx_completed,
+ bool mcast)
{
int tx_pending;
if (!wiphy_ext_feature_isset(local->hw.wiphy, NL80211_EXT_FEATURE_AQL))
return;
+ if (mcast) {
+ if (!tx_completed) {
+ atomic_add(tx_airtime, &local->aql_bc_pending_airtime);
+ return;
+ }
+
+ tx_pending = atomic_sub_return(tx_airtime,
+ &local->aql_bc_pending_airtime);
+ if (tx_pending < 0)
+ atomic_cmpxchg(&local->aql_bc_pending_airtime,
+ tx_pending, 0);
+ return;
+ }
+
if (!tx_completed) {
if (sta)
atomic_add(tx_airtime,
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2554,7 +2554,7 @@ static u16 ieee80211_store_ack_skb(struc
spin_lock_irqsave(&local->ack_status_lock, flags);
id = idr_alloc(&local->ack_status_frames, ack_skb,
- 1, 0x2000, GFP_ATOMIC);
+ 1, 0x1000, GFP_ATOMIC);
spin_unlock_irqrestore(&local->ack_status_lock, flags);
if (id >= 0) {
@@ -3982,20 +3982,20 @@ begin:
encap_out:
info->control.vif = vif;
- if (tx.sta &&
- wiphy_ext_feature_isset(local->hw.wiphy, NL80211_EXT_FEATURE_AQL)) {
- bool ampdu = txq->ac != IEEE80211_AC_VO;
+ if (wiphy_ext_feature_isset(local->hw.wiphy, NL80211_EXT_FEATURE_AQL)) {
+ bool ampdu = txq->sta && txq->ac != IEEE80211_AC_VO;
u32 airtime;
airtime = ieee80211_calc_expected_tx_airtime(hw, vif, txq->sta,
skb->len, ampdu);
- if (airtime) {
- airtime = ieee80211_info_set_tx_time_est(info, airtime);
- ieee80211_sta_update_pending_airtime(local, tx.sta,
- txq->ac,
- airtime,
- false);
- }
+ if (!airtime)
+ return skb;
+
+ airtime = ieee80211_info_set_tx_time_est(info, airtime);
+ info->tx_time_mc = !tx.sta;
+ ieee80211_sta_update_pending_airtime(local, tx.sta, txq->ac,
+ airtime, false,
+ info->tx_time_mc);
}
return skb;
@@ -4047,6 +4047,7 @@ struct ieee80211_txq *ieee80211_next_txq
struct ieee80211_txq *ret = NULL;
struct txq_info *txqi = NULL, *head = NULL;
bool found_eligible_txq = false;
+ bool aql_check;
spin_lock_bh(&local->active_txq_lock[ac]);
@@ -4070,26 +4071,26 @@ struct ieee80211_txq *ieee80211_next_txq
if (!head)
head = txqi;
+ aql_check = ieee80211_txq_airtime_check(hw, &txqi->txq);
+ if (aql_check)
+ found_eligible_txq = true;
+
if (txqi->txq.sta) {
struct sta_info *sta = container_of(txqi->txq.sta,
struct sta_info, sta);
- bool aql_check = ieee80211_txq_airtime_check(hw, &txqi->txq);
- s32 deficit = ieee80211_sta_deficit(sta, txqi->txq.ac);
-
- if (aql_check)
- found_eligible_txq = true;
-
- if (deficit < 0)
+ if (ieee80211_sta_deficit(sta, txqi->txq.ac) < 0) {
sta->airtime[txqi->txq.ac].deficit +=
sta->airtime_weight << AIRTIME_QUANTUM_SHIFT;
-
- if (deficit < 0 || !aql_check) {
- list_move_tail(&txqi->schedule_order,
- &local->active_txqs[txqi->txq.ac]);
- goto begin;
+ aql_check = false;
}
}
+ if (!aql_check) {
+ list_move_tail(&txqi->schedule_order,
+ &local->active_txqs[txqi->txq.ac]);
+ goto begin;
+ }
+
if (txqi->schedule_round == local->schedule_round[ac])
goto out;
@@ -4154,7 +4155,8 @@ bool ieee80211_txq_airtime_check(struct
return true;
if (!txq->sta)
- return true;
+ return atomic_read(&local->aql_bc_pending_airtime) <
+ local->aql_txq_limit_bc;
if (unlikely(txq->tid == IEEE80211_NUM_TIDS))
return true;
@@ -4203,15 +4205,15 @@ bool ieee80211_txq_may_transmit(struct i
spin_lock_bh(&local->active_txq_lock[ac]);
- if (!txqi->txq.sta)
- goto out;
-
if (list_empty(&txqi->schedule_order))
goto out;
if (!ieee80211_txq_schedule_airtime_check(local, ac))
goto out;
+ if (!txqi->txq.sta)
+ goto out;
+
list_for_each_entry_safe(iter, tmp, &local->active_txqs[ac],
schedule_order) {
if (iter == txqi)
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1222,8 +1222,8 @@ struct ieee80211_tx_info {
status_data_idr:1,
status_data:13,
hw_queue:4,
+ tx_time_mc:1,
tx_time_est:10;
- /* 1 free bit */
union {
struct {
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -147,7 +147,8 @@ struct airtime_info {
void ieee80211_sta_update_pending_airtime(struct ieee80211_local *local,
struct sta_info *sta, u8 ac,
- u16 tx_airtime, bool tx_completed);
+ u16 tx_airtime, bool tx_completed,
+ bool mcast);
struct sta_info;
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -734,7 +734,7 @@ static void ieee80211_report_used_skb(st
ieee80211_sta_update_pending_airtime(local, sta,
skb_get_queue_mapping(skb),
tx_time_est,
- true);
+ true, info->tx_time_mc);
rcu_read_unlock();
}
@@ -1158,10 +1158,11 @@ void ieee80211_tx_status_ext(struct ieee
/* Do this here to avoid the expensive lookup of the sta
* in ieee80211_report_used_skb().
*/
+ bool mcast = IEEE80211_SKB_CB(skb)->tx_time_mc;
ieee80211_sta_update_pending_airtime(local, sta,
skb_get_queue_mapping(skb),
tx_time_est,
- true);
+ true, mcast);
ieee80211_info_set_tx_time_est(IEEE80211_SKB_CB(skb), 0);
}

24
package/kernel/mac80211/patches/subsys/321-wifi-mac80211-do-not-pass-a-stopped-vif-to-the-drive.patch Normal file
View File

@@ -0,0 +1,24 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 2 Oct 2024 11:45:35 +0200
Subject: [PATCH] wifi: mac80211: do not pass a stopped vif to the driver in
.get_txpower
Avoid potentially crashing in the driver because of uninitialized private data
Fixes: 5b3dc42b1b0d ("mac80211: add support for driver tx power reporting")
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3134,7 +3134,8 @@ static int ieee80211_get_tx_power(struct
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
- if (local->ops->get_txpower)
+ if (local->ops->get_txpower &&
+ (sdata->flags & IEEE80211_SDATA_IN_DRIVER))
return drv_get_txpower(local, sdata, dbm);
if (local->emulate_chanctx)

233
package/kernel/mac80211/patches/subsys/330-wifi-mac80211-introduce-EHT-rate-support-in-AQL-airt.patch Normal file
View File

@@ -0,0 +1,233 @@
From: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Date: Wed, 4 Sep 2024 19:12:56 +0800
Subject: [PATCH] wifi: mac80211: introduce EHT rate support in AQL airtime
Add definitions related to EHT mode and airtime calculation
according to the 802.11BE_D4.0.
Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Quan Zhou <quan.zhou@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Link: https://patch.msgid.link/20240904111256.11734-1-mingyen.hsieh@mediatek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/net/mac80211/airtime.c
+++ b/net/mac80211/airtime.c
@@ -55,10 +55,21 @@
#define HE_DURATION_S(shift, streams, gi, bps) \
(HE_DURATION(streams, gi, bps) >> shift)
+/* gi in HE/EHT is identical. It matches enum nl80211_eht_gi as well */
+#define EHT_GI_08 HE_GI_08
+#define EHT_GI_16 HE_GI_16
+#define EHT_GI_32 HE_GI_32
+
+#define EHT_DURATION(streams, gi, bps) \
+ HE_DURATION(streams, gi, bps)
+#define EHT_DURATION_S(shift, streams, gi, bps) \
+ HE_DURATION_S(shift, streams, gi, bps)
+
#define BW_20 0
#define BW_40 1
#define BW_80 2
#define BW_160 3
+#define BW_320 4
/*
* Define group sort order: HT40 -> SGI -> #streams
@@ -68,17 +79,26 @@
#define IEEE80211_VHT_STREAM_GROUPS 8 /* BW(=4) * SGI(=2) */
#define IEEE80211_HE_MAX_STREAMS 8
+#define IEEE80211_HE_STREAM_GROUPS 12 /* BW(=4) * GI(=3) */
+
+#define IEEE80211_EHT_MAX_STREAMS 8
+#define IEEE80211_EHT_STREAM_GROUPS 15 /* BW(=5) * GI(=3) */
#define IEEE80211_HT_GROUPS_NB (IEEE80211_MAX_STREAMS * \
IEEE80211_HT_STREAM_GROUPS)
#define IEEE80211_VHT_GROUPS_NB (IEEE80211_MAX_STREAMS * \
IEEE80211_VHT_STREAM_GROUPS)
+#define IEEE80211_HE_GROUPS_NB (IEEE80211_HE_MAX_STREAMS * \
+ IEEE80211_HE_STREAM_GROUPS)
+#define IEEE80211_EHT_GROUPS_NB (IEEE80211_EHT_MAX_STREAMS * \
+ IEEE80211_EHT_STREAM_GROUPS)
#define IEEE80211_HT_GROUP_0 0
#define IEEE80211_VHT_GROUP_0 (IEEE80211_HT_GROUP_0 + IEEE80211_HT_GROUPS_NB)
#define IEEE80211_HE_GROUP_0 (IEEE80211_VHT_GROUP_0 + IEEE80211_VHT_GROUPS_NB)
+#define IEEE80211_EHT_GROUP_0 (IEEE80211_HE_GROUP_0 + IEEE80211_HE_GROUPS_NB)
-#define MCS_GROUP_RATES 12
+#define MCS_GROUP_RATES 14
#define HT_GROUP_IDX(_streams, _sgi, _ht40) \
IEEE80211_HT_GROUP_0 + \
@@ -203,6 +223,69 @@
#define HE_GROUP(_streams, _gi, _bw) \
__HE_GROUP(_streams, _gi, _bw, \
HE_GROUP_SHIFT(_streams, _gi, _bw))
+
+#define EHT_BW2VBPS(_bw, r5, r4, r3, r2, r1) \
+ ((_bw) == BW_320 ? r5 : BW2VBPS(_bw, r4, r3, r2, r1))
+
+#define EHT_GROUP_IDX(_streams, _gi, _bw) \
+ (IEEE80211_EHT_GROUP_0 + \
+ IEEE80211_EHT_MAX_STREAMS * 3 * (_bw) + \
+ IEEE80211_EHT_MAX_STREAMS * (_gi) + \
+ (_streams) - 1)
+
+#define __EHT_GROUP(_streams, _gi, _bw, _s) \
+ [EHT_GROUP_IDX(_streams, _gi, _bw)] = { \
+ .shift = _s, \
+ .duration = { \
+ EHT_DURATION_S(_s, _streams, _gi, \
+ EHT_BW2VBPS(_bw, 1960, 980, 490, 234, 117)), \
+ EHT_DURATION_S(_s, _streams, _gi, \
+ EHT_BW2VBPS(_bw, 3920, 1960, 980, 468, 234)), \
+ EHT_DURATION_S(_s, _streams, _gi, \
+ EHT_BW2VBPS(_bw, 5880, 2937, 1470, 702, 351)), \
+ EHT_DURATION_S(_s, _streams, _gi, \
+ EHT_BW2VBPS(_bw, 7840, 3920, 1960, 936, 468)), \
+ EHT_DURATION_S(_s, _streams, _gi, \
+ EHT_BW2VBPS(_bw, 11760, 5880, 2940, 1404, 702)), \
+ EHT_DURATION_S(_s, _streams, _gi, \
+ EHT_BW2VBPS(_bw, 15680, 7840, 3920, 1872, 936)), \
+ EHT_DURATION_S(_s, _streams, _gi, \
+ EHT_BW2VBPS(_bw, 17640, 8820, 4410, 2106, 1053)), \
+ EHT_DURATION_S(_s, _streams, _gi, \
+ EHT_BW2VBPS(_bw, 19600, 9800, 4900, 2340, 1170)), \
+ EHT_DURATION_S(_s, _streams, _gi, \
+ EHT_BW2VBPS(_bw, 23520, 11760, 5880, 2808, 1404)), \
+ EHT_DURATION_S(_s, _streams, _gi, \
+ EHT_BW2VBPS(_bw, 26133, 13066, 6533, 3120, 1560)), \
+ EHT_DURATION_S(_s, _streams, _gi, \
+ EHT_BW2VBPS(_bw, 29400, 14700, 7350, 3510, 1755)), \
+ EHT_DURATION_S(_s, _streams, _gi, \
+ EHT_BW2VBPS(_bw, 32666, 16333, 8166, 3900, 1950)), \
+ EHT_DURATION_S(_s, _streams, _gi, \
+ EHT_BW2VBPS(_bw, 35280, 17640, 8820, 4212, 2106)), \
+ EHT_DURATION_S(_s, _streams, _gi, \
+ EHT_BW2VBPS(_bw, 39200, 19600, 9800, 4680, 2340)) \
+ } \
+}
+
+#define EHT_GROUP_SHIFT(_streams, _gi, _bw) \
+ GROUP_SHIFT(EHT_DURATION(_streams, _gi, \
+ EHT_BW2VBPS(_bw, 1960, 980, 490, 234, 117)))
+
+#define EHT_GROUP(_streams, _gi, _bw) \
+ __EHT_GROUP(_streams, _gi, _bw, \
+ EHT_GROUP_SHIFT(_streams, _gi, _bw))
+
+#define EHT_GROUP_RANGE(_gi, _bw) \
+ EHT_GROUP(1, _gi, _bw), \
+ EHT_GROUP(2, _gi, _bw), \
+ EHT_GROUP(3, _gi, _bw), \
+ EHT_GROUP(4, _gi, _bw), \
+ EHT_GROUP(5, _gi, _bw), \
+ EHT_GROUP(6, _gi, _bw), \
+ EHT_GROUP(7, _gi, _bw), \
+ EHT_GROUP(8, _gi, _bw)
+
struct mcs_group {
u8 shift;
u16 duration[MCS_GROUP_RATES];
@@ -376,6 +459,26 @@ static const struct mcs_group airtime_mc
HE_GROUP(6, HE_GI_32, BW_160),
HE_GROUP(7, HE_GI_32, BW_160),
HE_GROUP(8, HE_GI_32, BW_160),
+
+ EHT_GROUP_RANGE(EHT_GI_08, BW_20),
+ EHT_GROUP_RANGE(EHT_GI_16, BW_20),
+ EHT_GROUP_RANGE(EHT_GI_32, BW_20),
+
+ EHT_GROUP_RANGE(EHT_GI_08, BW_40),
+ EHT_GROUP_RANGE(EHT_GI_16, BW_40),
+ EHT_GROUP_RANGE(EHT_GI_32, BW_40),
+
+ EHT_GROUP_RANGE(EHT_GI_08, BW_80),
+ EHT_GROUP_RANGE(EHT_GI_16, BW_80),
+ EHT_GROUP_RANGE(EHT_GI_32, BW_80),
+
+ EHT_GROUP_RANGE(EHT_GI_08, BW_160),
+ EHT_GROUP_RANGE(EHT_GI_16, BW_160),
+ EHT_GROUP_RANGE(EHT_GI_32, BW_160),
+
+ EHT_GROUP_RANGE(EHT_GI_08, BW_320),
+ EHT_GROUP_RANGE(EHT_GI_16, BW_320),
+ EHT_GROUP_RANGE(EHT_GI_32, BW_320),
};
static u32
@@ -422,6 +525,9 @@ static u32 ieee80211_get_rate_duration(s
case RATE_INFO_BW_160:
bw = BW_160;
break;
+ case RATE_INFO_BW_320:
+ bw = BW_320;
+ break;
default:
WARN_ON_ONCE(1);
return 0;
@@ -443,14 +549,27 @@ static u32 ieee80211_get_rate_duration(s
idx = status->rate_idx;
group = HE_GROUP_IDX(streams, status->he_gi, bw);
break;
+ case RX_ENC_EHT:
+ streams = status->nss;
+ idx = status->rate_idx;
+ group = EHT_GROUP_IDX(streams, status->eht.gi, bw);
+ break;
default:
WARN_ON_ONCE(1);
return 0;
}
- if (WARN_ON_ONCE((status->encoding != RX_ENC_HE && streams > 4) ||
- (status->encoding == RX_ENC_HE && streams > 8)))
- return 0;
+ switch (status->encoding) {
+ case RX_ENC_EHT:
+ case RX_ENC_HE:
+ if (WARN_ON_ONCE(streams > 8))
+ return 0;
+ break;
+ default:
+ if (WARN_ON_ONCE(streams > 4))
+ return 0;
+ break;
+ }
if (idx >= MCS_GROUP_RATES)
return 0;
@@ -517,7 +636,9 @@ static bool ieee80211_fill_rate_info(str
stat->nss = ri->nss;
stat->rate_idx = ri->mcs;
- if (ri->flags & RATE_INFO_FLAGS_HE_MCS)
+ if (ri->flags & RATE_INFO_FLAGS_EHT_MCS)
+ stat->encoding = RX_ENC_EHT;
+ else if (ri->flags & RATE_INFO_FLAGS_HE_MCS)
stat->encoding = RX_ENC_HE;
else if (ri->flags & RATE_INFO_FLAGS_VHT_MCS)
stat->encoding = RX_ENC_VHT;
@@ -529,7 +650,14 @@ static bool ieee80211_fill_rate_info(str
if (ri->flags & RATE_INFO_FLAGS_SHORT_GI)
stat->enc_flags |= RX_ENC_FLAG_SHORT_GI;
- stat->he_gi = ri->he_gi;
+ switch (stat->encoding) {
+ case RX_ENC_EHT:
+ stat->eht.gi = ri->eht_gi;
+ break;
+ default:
+ stat->he_gi = ri->he_gi;
+ break;
+ }
if (stat->encoding != RX_ENC_LEGACY)
return true;

122
package/kernel/mac80211/patches/subsys/331-wifi-cfg80211-check-radio-iface-combination-for-mult.patch Normal file
View File

@@ -0,0 +1,122 @@
From: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Date: Tue, 17 Sep 2024 19:32:39 +0530
Subject: [PATCH] wifi: cfg80211: check radio iface combination for multi radio
per wiphy
Currently, wiphy_verify_combinations() fails for the multi-radio per wiphy
due to the condition check on new global interface combination that DFS
only works on one channel. In a multi-radio scenario, new global interface
combination encompasses the capabilities of all radio combinations, so it
supports more than one channel with DFS. For multi-radio per wiphy,
interface combination verification needs to be performed for radio specific
interface combinations. This is necessary as the new global interface
combination combines the capabilities of all radio combinations.
Fixes: a01b1e9f9955 ("wifi: mac80211: add support for DFS with multiple radios")
Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
---
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -599,16 +599,20 @@ use_default_name:
}
EXPORT_SYMBOL(wiphy_new_nm);
-static int wiphy_verify_combinations(struct wiphy *wiphy)
+static
+int wiphy_verify_iface_combinations(struct wiphy *wiphy,
+ const struct ieee80211_iface_combination *iface_comb,
+ int n_iface_comb,
+ bool combined_radio)
{
const struct ieee80211_iface_combination *c;
int i, j;
- for (i = 0; i < wiphy->n_iface_combinations; i++) {
+ for (i = 0; i < n_iface_comb; i++) {
u32 cnt = 0;
u16 all_iftypes = 0;
- c = &wiphy->iface_combinations[i];
+ c = &iface_comb[i];
/*
* Combinations with just one interface aren't real,
@@ -621,9 +625,13 @@ static int wiphy_verify_combinations(str
if (WARN_ON(!c->num_different_channels))
return -EINVAL;
- /* DFS only works on one channel. */
- if (WARN_ON(c->radar_detect_widths &&
- (c->num_different_channels > 1)))
+ /* DFS only works on one channel. Avoid this check
+ * for multi-radio global combination, since it hold
+ * the capabilities of all radio combinations.
+ */
+ if (!combined_radio &&
+ WARN_ON(c->radar_detect_widths &&
+ c->num_different_channels > 1))
return -EINVAL;
if (WARN_ON(!c->n_limits))
@@ -644,13 +652,21 @@ static int wiphy_verify_combinations(str
if (WARN_ON(wiphy->software_iftypes & types))
return -EINVAL;
- /* Only a single P2P_DEVICE can be allowed */
- if (WARN_ON(types & BIT(NL80211_IFTYPE_P2P_DEVICE) &&
+ /* Only a single P2P_DEVICE can be allowed, avoid this
+ * check for multi-radio global combination, since it
+ * hold the capabilities of all radio combinations.
+ */
+ if (!combined_radio &&
+ WARN_ON(types & BIT(NL80211_IFTYPE_P2P_DEVICE) &&
c->limits[j].max > 1))
return -EINVAL;
- /* Only a single NAN can be allowed */
- if (WARN_ON(types & BIT(NL80211_IFTYPE_NAN) &&
+ /* Only a single NAN can be allowed, avoid this
+ * check for multi-radio global combination, since it
+ * hold the capabilities of all radio combinations.
+ */
+ if (!combined_radio &&
+ WARN_ON(types & BIT(NL80211_IFTYPE_NAN) &&
c->limits[j].max > 1))
return -EINVAL;
@@ -674,6 +690,34 @@ static int wiphy_verify_combinations(str
return 0;
}
+static int wiphy_verify_combinations(struct wiphy *wiphy)
+{
+ int i, ret;
+ bool combined_radio = false;
+
+ if (wiphy->n_radio) {
+ for (i = 0; i < wiphy->n_radio; i++) {
+ const struct wiphy_radio *radio = &wiphy->radio[i];
+
+ ret = wiphy_verify_iface_combinations(wiphy,
+ radio->iface_combinations,
+ radio->n_iface_combinations,
+ false);
+ if (ret)
+ return ret;
+ }
+
+ combined_radio = true;
+ }
+
+ ret = wiphy_verify_iface_combinations(wiphy,
+ wiphy->iface_combinations,
+ wiphy->n_iface_combinations,
+ combined_radio);
+
+ return ret;
+}
+
int wiphy_register(struct wiphy *wiphy)
{
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);

64
package/kernel/mac80211/patches/subsys/332-wifi-cfg80211-Set-correct-chandef-when-starting-CAC.patch Normal file
View File

@@ -0,0 +1,64 @@
From: Issam Hamdi <ih@simonwunderlich.de>
Date: Fri, 16 Aug 2024 16:24:18 +0200
Subject: [PATCH] wifi: cfg80211: Set correct chandef when starting CAC
When starting CAC in a mode other than AP mode, it return a
"WARNING: CPU: 0 PID: 63 at cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]"
caused by the chandef.chan being null at the end of CAC.
Solution: Ensure the channel definition is set for the different modes
when starting CAC to avoid getting a NULL 'chan' at the end of CAC.
Call Trace:
? show_regs.part.0+0x14/0x16
? __warn+0x67/0xc0
? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]
? report_bug+0xa7/0x130
? exc_overflow+0x30/0x30
? handle_bug+0x27/0x50
? exc_invalid_op+0x18/0x60
? handle_exception+0xf6/0xf6
? exc_overflow+0x30/0x30
? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]
? exc_overflow+0x30/0x30
? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]
? regulatory_propagate_dfs_state.cold+0x1b/0x4c [cfg80211]
? cfg80211_propagate_cac_done_wk+0x1a/0x30 [cfg80211]
? process_one_work+0x165/0x280
? worker_thread+0x120/0x3f0
? kthread+0xc2/0xf0
? process_one_work+0x280/0x280
? kthread_complete_and_exit+0x20/0x20
? ret_from_fork+0x19/0x24
Reported-by: Kretschmer Mathias <mathias.kretschmer@fit.fraunhofer.de>
Signed-off-by: Issam Hamdi <ih@simonwunderlich.de>
Link: https://patch.msgid.link/20240816142418.3381951-1-ih@simonwunderlich.de
[shorten subject, remove OCB, reorder cases to match previous list]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -10144,7 +10144,20 @@ static int nl80211_start_radar_detection
err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
if (!err) {
- wdev->links[0].ap.chandef = chandef;
+ switch (wdev->iftype) {
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_P2P_GO:
+ wdev->links[0].ap.chandef = chandef;
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ wdev->u.ibss.chandef = chandef;
+ break;
+ case NL80211_IFTYPE_MESH_POINT:
+ wdev->u.mesh.chandef = chandef;
+ break;
+ default:
+ break;
+ }
wdev->cac_started = true;
wdev->cac_start_time = jiffies;
wdev->cac_time_ms = cac_time_ms;

136
package/kernel/mac80211/patches/subsys/333-Revert-wifi-mac80211-move-radar-detect-work-to-sdata.patch Normal file
View File

@@ -0,0 +1,136 @@
From: Aditya Kumar Singh <quic_adisi@quicinc.com>
Date: Fri, 6 Sep 2024 12:14:19 +0530
Subject: [PATCH] Revert "wifi: mac80211: move radar detect work to sdata"
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This reverts commit ce9e660ef32e ("wifi: mac80211: move radar detect work to sdata").
To enable radar detection with MLO, it’s essential to handle it on a
per-link basis. This is because when using MLO, multiple links may already
be active and beaconing. In this scenario, another link should be able to
initiate a radar detection. Also, if underlying links are associated with
different hardware devices but grouped together for MLO, they could
potentially start radar detection simultaneously. Therefore, it makes
sense to manage radar detection settings separately for each link by moving
them back to a per-link data structure.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://patch.msgid.link/20240906064426.2101315-2-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1658,7 +1658,7 @@ static int ieee80211_stop_ap(struct wiph
if (sdata->wdev.cac_started) {
chandef = link_conf->chanreq.oper;
- wiphy_delayed_work_cancel(wiphy, &sdata->dfs_cac_timer_work);
+ wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work);
cfg80211_cac_event(sdata->dev, &chandef,
NL80211_RADAR_CAC_ABORTED,
GFP_KERNEL);
@@ -3482,7 +3482,7 @@ static int ieee80211_start_radar_detecti
if (err)
goto out_unlock;
- wiphy_delayed_work_queue(wiphy, &sdata->dfs_cac_timer_work,
+ wiphy_delayed_work_queue(wiphy, &sdata->deflink.dfs_cac_timer_work,
msecs_to_jiffies(cac_time_ms));
out_unlock:
@@ -3499,7 +3499,7 @@ static void ieee80211_end_cac(struct wip
list_for_each_entry(sdata, &local->interfaces, list) {
wiphy_delayed_work_cancel(wiphy,
- &sdata->dfs_cac_timer_work);
+ &sdata->deflink.dfs_cac_timer_work);
if (sdata->wdev.cac_started) {
ieee80211_link_release_channel(&sdata->deflink);
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1069,6 +1069,7 @@ struct ieee80211_link_data {
int ap_power_level; /* in dBm */
bool radar_required;
+ struct wiphy_delayed_work dfs_cac_timer_work;
union {
struct ieee80211_link_data_managed mgd;
@@ -1167,8 +1168,6 @@ struct ieee80211_sub_if_data {
struct ieee80211_link_data deflink;
struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS];
- struct wiphy_delayed_work dfs_cac_timer_work;
-
/* for ieee80211_set_active_links_async() */
struct wiphy_work activate_links_work;
u16 desired_active_links;
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -551,7 +551,7 @@ static void ieee80211_do_stop(struct iee
wiphy_work_cancel(local->hw.wiphy,
&sdata->deflink.color_change_finalize_work);
wiphy_delayed_work_cancel(local->hw.wiphy,
- &sdata->dfs_cac_timer_work);
+ &sdata->deflink.dfs_cac_timer_work);
if (sdata->wdev.cac_started) {
chandef = sdata->vif.bss_conf.chanreq.oper;
@@ -1744,8 +1744,6 @@ static void ieee80211_setup_sdata(struct
wiphy_work_init(&sdata->work, ieee80211_iface_work);
wiphy_work_init(&sdata->activate_links_work,
ieee80211_activate_links_work);
- wiphy_delayed_work_init(&sdata->dfs_cac_timer_work,
- ieee80211_dfs_cac_timer_work);
switch (type) {
case NL80211_IFTYPE_P2P_GO:
--- a/net/mac80211/link.c
+++ b/net/mac80211/link.c
@@ -45,6 +45,8 @@ void ieee80211_link_init(struct ieee8021
ieee80211_color_collision_detection_work);
INIT_LIST_HEAD(&link->assigned_chanctx_list);
INIT_LIST_HEAD(&link->reserved_chanctx_list);
+ wiphy_delayed_work_init(&link->dfs_cac_timer_work,
+ ieee80211_dfs_cac_timer_work);
if (!deflink) {
switch (sdata->vif.type) {
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3031,15 +3031,16 @@ void ieee80211_dynamic_ps_timer(struct t
void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work)
{
- struct ieee80211_sub_if_data *sdata =
- container_of(work, struct ieee80211_sub_if_data,
+ struct ieee80211_link_data *link =
+ container_of(work, struct ieee80211_link_data,
dfs_cac_timer_work.work);
- struct cfg80211_chan_def chandef = sdata->vif.bss_conf.chanreq.oper;
+ struct cfg80211_chan_def chandef = link->conf->chanreq.oper;
+ struct ieee80211_sub_if_data *sdata = link->sdata;
lockdep_assert_wiphy(sdata->local->hw.wiphy);
if (sdata->wdev.cac_started) {
- ieee80211_link_release_channel(&sdata->deflink);
+ ieee80211_link_release_channel(link);
cfg80211_cac_event(sdata->dev, &chandef,
NL80211_RADAR_CAC_FINISHED,
GFP_KERNEL);
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -3460,7 +3460,7 @@ void ieee80211_dfs_cac_cancel(struct iee
list_for_each_entry(sdata, &local->interfaces, list) {
wiphy_delayed_work_cancel(local->hw.wiphy,
- &sdata->dfs_cac_timer_work);
+ &sdata->deflink.dfs_cac_timer_work);
if (sdata->wdev.cac_started) {
chandef = sdata->vif.bss_conf.chanreq.oper;

50
package/kernel/mac80211/patches/subsys/334-wifi-mac80211-remove-label-usage-in-ieee80211_start_.patch Normal file
View File

@@ -0,0 +1,50 @@
From: Aditya Kumar Singh <quic_adisi@quicinc.com>
Date: Fri, 6 Sep 2024 12:14:20 +0530
Subject: [PATCH] wifi: mac80211: remove label usage in
ieee80211_start_radar_detection()
After locks rework [1], ieee80211_start_radar_detection() function is no
longer acquiring any lock as such explicitly. Hence, it is not unlocking
anything as well. However, label "out_unlock" is still used which creates
confusion. Also, now there is no need of goto label as such.
Get rid of the goto logic and use direct return statements.
[1]: https://lore.kernel.org/all/20230828135928.b1c6efffe9ad.I4aec875e25abc9ef0b5ad1e70b5747fd483fbd3c@changeid/
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://patch.msgid.link/20240906064426.2101315-3-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3468,10 +3468,8 @@ static int ieee80211_start_radar_detecti
lockdep_assert_wiphy(local->hw.wiphy);
- if (!list_empty(&local->roc_list) || local->scanning) {
- err = -EBUSY;
- goto out_unlock;
- }
+ if (!list_empty(&local->roc_list) || local->scanning)
+ return -EBUSY;
/* whatever, but channel contexts should not complain about that one */
sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
@@ -3480,13 +3478,12 @@ static int ieee80211_start_radar_detecti
err = ieee80211_link_use_channel(&sdata->deflink, &chanreq,
IEEE80211_CHANCTX_SHARED);
if (err)
- goto out_unlock;
+ return err;
wiphy_delayed_work_queue(wiphy, &sdata->deflink.dfs_cac_timer_work,
msecs_to_jiffies(cac_time_ms));
- out_unlock:
- return err;
+ return 0;
}
static void ieee80211_end_cac(struct wiphy *wiphy,

42
package/kernel/mac80211/patches/subsys/335-wifi-trace-unlink-rdev_end_cac-trace-event-from-wiph.patch Normal file
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@@ -0,0 +1,42 @@
From: Aditya Kumar Singh <quic_adisi@quicinc.com>
Date: Fri, 6 Sep 2024 12:14:21 +0530
Subject: [PATCH] wifi: trace: unlink rdev_end_cac trace event from
wiphy_netdev_evt class
rdev_end_cac trace event is linked with wiphy_netdev_evt event class.
There is no option to pass link ID currently to wiphy_netdev_evt class.
A subsequent change would pass link ID to rdev_end_cac event and hence
it can no longer derive the event class from wiphy_netdev_evt.
Therefore, unlink rdev_end_cac event from wiphy_netdev_evt and define it's
own independent trace event. Link ID would be passed in subsequent change.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://patch.msgid.link/20240906064426.2101315-4-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -805,9 +805,18 @@ DEFINE_EVENT(wiphy_netdev_evt, rdev_flus
TP_ARGS(wiphy, netdev)
);
-DEFINE_EVENT(wiphy_netdev_evt, rdev_end_cac,
- TP_PROTO(struct wiphy *wiphy, struct net_device *netdev),
- TP_ARGS(wiphy, netdev)
+TRACE_EVENT(rdev_end_cac,
+ TP_PROTO(struct wiphy *wiphy, struct net_device *netdev),
+ TP_ARGS(wiphy, netdev),
+ TP_STRUCT__entry(
+ WIPHY_ENTRY
+ NETDEV_ENTRY
+ ),
+ TP_fast_assign(
+ WIPHY_ASSIGN;
+ NETDEV_ASSIGN;
+ ),
+ TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT, WIPHY_PR_ARG, NETDEV_PR_ARG)
);
DECLARE_EVENT_CLASS(station_add_change,

309
package/kernel/mac80211/patches/subsys/336-wifi-cfg80211-move-DFS-related-members-to-links-in-w.patch Normal file
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@@ -0,0 +1,309 @@
From: Aditya Kumar Singh <quic_adisi@quicinc.com>
Date: Fri, 6 Sep 2024 12:14:22 +0530
Subject: [PATCH] wifi: cfg80211: move DFS related members to links[] in
wireless_dev
A few members related to DFS handling are currently under per wireless
device data structure. However, in order to support DFS with MLO, there is
a need to have them on a per-link manner.
Hence, as a preliminary step, move members cac_started, cac_start_time
and cac_time_ms to be on a per-link basis.
Since currently, link ID is not known at all places, use default value of
0 for now.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://patch.msgid.link/20240906064426.2101315-5-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/drivers/net/wireless/marvell/mwifiex/11h.c
+++ b/drivers/net/wireless/marvell/mwifiex/11h.c
@@ -117,7 +117,7 @@ void mwifiex_dfs_cac_work_queue(struct w
dfs_cac_work);
chandef = priv->dfs_chandef;
- if (priv->wdev.cac_started) {
+ if (priv->wdev.links[0].cac_started) {
mwifiex_dbg(priv->adapter, MSG,
"CAC timer finished; No radar detected\n");
cfg80211_cac_event(priv->netdev, &chandef,
@@ -174,7 +174,7 @@ int mwifiex_stop_radar_detection(struct
*/
void mwifiex_abort_cac(struct mwifiex_private *priv)
{
- if (priv->wdev.cac_started) {
+ if (priv->wdev.links[0].cac_started) {
if (mwifiex_stop_radar_detection(priv, &priv->dfs_chandef))
mwifiex_dbg(priv->adapter, ERROR,
"failed to stop CAC in FW\n");
--- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
@@ -1880,7 +1880,7 @@ mwifiex_cfg80211_del_station(struct wiph
struct mwifiex_sta_node *sta_node;
u8 deauth_mac[ETH_ALEN];
- if (!priv->bss_started && priv->wdev.cac_started) {
+ if (!priv->bss_started && priv->wdev.links[0].cac_started) {
mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
mwifiex_abort_cac(priv);
}
@@ -3978,7 +3978,7 @@ mwifiex_cfg80211_channel_switch(struct w
return -EBUSY;
}
- if (priv->wdev.cac_started)
+ if (priv->wdev.links[0].cac_started)
return -EBUSY;
if (cfg80211_chandef_identical(&params->chandef,
--- a/drivers/net/wireless/quantenna/qtnfmac/event.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/event.c
@@ -520,21 +520,21 @@ static int qtnf_event_handle_radar(struc
cfg80211_radar_event(wiphy, &chandef, GFP_KERNEL);
break;
case QLINK_RADAR_CAC_FINISHED:
- if (!vif->wdev.cac_started)
+ if (!vif->wdev.links[0].cac_started)
break;
cfg80211_cac_event(vif->netdev, &chandef,
NL80211_RADAR_CAC_FINISHED, GFP_KERNEL);
break;
case QLINK_RADAR_CAC_ABORTED:
- if (!vif->wdev.cac_started)
+ if (!vif->wdev.links[0].cac_started)
break;
cfg80211_cac_event(vif->netdev, &chandef,
NL80211_RADAR_CAC_ABORTED, GFP_KERNEL);
break;
case QLINK_RADAR_CAC_STARTED:
- if (vif->wdev.cac_started)
+ if (vif->wdev.links[0].cac_started)
break;
if (!wiphy_ext_feature_isset(wiphy,
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -6198,9 +6198,6 @@ enum ieee80211_ap_reg_power {
* @address: The address for this device, valid only if @netdev is %NULL
* @is_running: true if this is a non-netdev device that has been started, e.g.
* the P2P Device.
- * @cac_started: true if DFS channel availability check has been started
- * @cac_start_time: timestamp (jiffies) when the dfs state was entered.
- * @cac_time_ms: CAC time in ms
* @ps: powersave mode is enabled
* @ps_timeout: dynamic powersave timeout
* @ap_unexpected_nlportid: (private) netlink port ID of application
@@ -6224,6 +6221,11 @@ enum ieee80211_ap_reg_power {
* unprotected beacon report
* @links: array of %IEEE80211_MLD_MAX_NUM_LINKS elements containing @addr
* @ap and @client for each link
+ * @links[].cac_started: true if DFS channel availability check has been
+ * started
+ * @links[].cac_start_time: timestamp (jiffies) when the dfs state was
+ * entered.
+ * @links[].cac_time_ms: CAC time in ms
* @valid_links: bitmap describing what elements of @links are valid
*/
struct wireless_dev {
@@ -6265,11 +6267,6 @@ struct wireless_dev {
u32 owner_nlportid;
bool nl_owner_dead;
- /* FIXME: need to rework radar detection for MLO */
- bool cac_started;
- unsigned long cac_start_time;
- unsigned int cac_time_ms;
-
#ifdef CPTCFG_CFG80211_WEXT
/* wext data */
struct {
@@ -6336,6 +6333,10 @@ struct wireless_dev {
struct cfg80211_internal_bss *current_bss;
} client;
};
+
+ bool cac_started;
+ unsigned long cac_start_time;
+ unsigned int cac_time_ms;
} links[IEEE80211_MLD_MAX_NUM_LINKS];
u16 valid_links;
};
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1656,7 +1656,7 @@ static int ieee80211_stop_ap(struct wiph
ieee80211_link_info_change_notify(sdata, link,
BSS_CHANGED_BEACON_ENABLED);
- if (sdata->wdev.cac_started) {
+ if (sdata->wdev.links[0].cac_started) {
chandef = link_conf->chanreq.oper;
wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work);
cfg80211_cac_event(sdata->dev, &chandef,
@@ -3498,9 +3498,9 @@ static void ieee80211_end_cac(struct wip
wiphy_delayed_work_cancel(wiphy,
&sdata->deflink.dfs_cac_timer_work);
- if (sdata->wdev.cac_started) {
+ if (sdata->wdev.links[0].cac_started) {
ieee80211_link_release_channel(&sdata->deflink);
- sdata->wdev.cac_started = false;
+ sdata->wdev.links[0].cac_started = false;
}
}
}
@@ -3955,7 +3955,7 @@ __ieee80211_channel_switch(struct wiphy
if (!list_empty(&local->roc_list) || local->scanning)
return -EBUSY;
- if (sdata->wdev.cac_started)
+ if (sdata->wdev.links[0].cac_started)
return -EBUSY;
if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -553,7 +553,7 @@ static void ieee80211_do_stop(struct iee
wiphy_delayed_work_cancel(local->hw.wiphy,
&sdata->deflink.dfs_cac_timer_work);
- if (sdata->wdev.cac_started) {
+ if (sdata->wdev.links[0].cac_started) {
chandef = sdata->vif.bss_conf.chanreq.oper;
WARN_ON(local->suspended);
ieee80211_link_release_channel(&sdata->deflink);
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3039,7 +3039,7 @@ void ieee80211_dfs_cac_timer_work(struct
lockdep_assert_wiphy(sdata->local->hw.wiphy);
- if (sdata->wdev.cac_started) {
+ if (sdata->wdev.links[0].cac_started) {
ieee80211_link_release_channel(link);
cfg80211_cac_event(sdata->dev, &chandef,
NL80211_RADAR_CAC_FINISHED,
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -585,7 +585,7 @@ static bool __ieee80211_can_leave_ch(str
return false;
list_for_each_entry(sdata_iter, &local->interfaces, list) {
- if (sdata_iter->wdev.cac_started)
+ if (sdata_iter->wdev.links[0].cac_started)
return false;
}
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -3462,7 +3462,7 @@ void ieee80211_dfs_cac_cancel(struct iee
wiphy_delayed_work_cancel(local->hw.wiphy,
&sdata->deflink.dfs_cac_timer_work);
- if (sdata->wdev.cac_started) {
+ if (sdata->wdev.links[0].cac_started) {
chandef = sdata->vif.bss_conf.chanreq.oper;
ieee80211_link_release_channel(&sdata->deflink);
cfg80211_cac_event(sdata->dev,
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -94,7 +94,7 @@ int __cfg80211_join_ibss(struct cfg80211
lockdep_assert_held(&rdev->wiphy.mtx);
- if (wdev->cac_started)
+ if (wdev->links[0].cac_started)
return -EBUSY;
if (wdev->u.ibss.ssid_len)
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -127,7 +127,7 @@ int __cfg80211_join_mesh(struct cfg80211
if (!rdev->ops->join_mesh)
return -EOPNOTSUPP;
- if (wdev->cac_started)
+ if (wdev->links[0].cac_started)
return -EBUSY;
if (!setup->chandef.chan) {
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -1124,13 +1124,14 @@ void cfg80211_cac_event(struct net_devic
trace_cfg80211_cac_event(netdev, event);
- if (WARN_ON(!wdev->cac_started && event != NL80211_RADAR_CAC_STARTED))
+ if (WARN_ON(!wdev->links[0].cac_started &&
+ event != NL80211_RADAR_CAC_STARTED))
return;
switch (event) {
case NL80211_RADAR_CAC_FINISHED:
- timeout = wdev->cac_start_time +
- msecs_to_jiffies(wdev->cac_time_ms);
+ timeout = wdev->links[0].cac_start_time +
+ msecs_to_jiffies(wdev->links[0].cac_time_ms);
WARN_ON(!time_after_eq(jiffies, timeout));
cfg80211_set_dfs_state(wiphy, chandef, NL80211_DFS_AVAILABLE);
memcpy(&rdev->cac_done_chandef, chandef,
@@ -1139,10 +1140,10 @@ void cfg80211_cac_event(struct net_devic
cfg80211_sched_dfs_chan_update(rdev);
fallthrough;
case NL80211_RADAR_CAC_ABORTED:
- wdev->cac_started = false;
+ wdev->links[0].cac_started = false;
break;
case NL80211_RADAR_CAC_STARTED:
- wdev->cac_started = true;
+ wdev->links[0].cac_started = true;
break;
default:
WARN_ON(1);
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -6066,7 +6066,7 @@ static int nl80211_start_ap(struct sk_bu
if (!rdev->ops->start_ap)
return -EOPNOTSUPP;
- if (wdev->cac_started)
+ if (wdev->links[0].cac_started)
return -EBUSY;
if (wdev->links[link_id].ap.beacon_interval)
@@ -10122,7 +10122,7 @@ static int nl80211_start_radar_detection
goto unlock;
}
- if (cfg80211_beaconing_iface_active(wdev) || wdev->cac_started) {
+ if (cfg80211_beaconing_iface_active(wdev) || wdev->links[0].cac_started) {
err = -EBUSY;
goto unlock;
}
@@ -10158,9 +10158,9 @@ static int nl80211_start_radar_detection
default:
break;
}
- wdev->cac_started = true;
- wdev->cac_start_time = jiffies;
- wdev->cac_time_ms = cac_time_ms;
+ wdev->links[0].cac_started = true;
+ wdev->links[0].cac_start_time = jiffies;
+ wdev->links[0].cac_time_ms = cac_time_ms;
}
unlock:
wiphy_unlock(wiphy);
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -4241,7 +4241,7 @@ static void cfg80211_check_and_end_cac(s
list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
struct cfg80211_chan_def *chandef;
- if (!wdev->cac_started)
+ if (!wdev->links[0].cac_started)
continue;
/* FIXME: radar detection is tied to link 0 for now */

435
package/kernel/mac80211/patches/subsys/337-wifi-cfg80211-handle-DFS-per-link.patch Normal file
View File

@@ -0,0 +1,435 @@
From: Aditya Kumar Singh <quic_adisi@quicinc.com>
Date: Fri, 6 Sep 2024 12:14:23 +0530
Subject: [PATCH] wifi: cfg80211: handle DFS per link
Currently, during starting a radar detection, no link id information is
parsed and passed down. In order to support starting radar detection
during Multi Link Operation, it is required to pass link id as well.
Add changes to first parse and then pass link id in the start radar
detection path.
Additionally, update notification APIs to allow drivers/mac80211 to
pass the link ID.
However, everything is handled at link 0 only until all API's are ready to
handle it per link.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://patch.msgid.link/20240906064426.2101315-6-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/drivers/net/wireless/marvell/mwifiex/11h.c
+++ b/drivers/net/wireless/marvell/mwifiex/11h.c
@@ -122,7 +122,7 @@ void mwifiex_dfs_cac_work_queue(struct w
"CAC timer finished; No radar detected\n");
cfg80211_cac_event(priv->netdev, &chandef,
NL80211_RADAR_CAC_FINISHED,
- GFP_KERNEL);
+ GFP_KERNEL, 0);
}
}
@@ -182,7 +182,8 @@ void mwifiex_abort_cac(struct mwifiex_pr
"Aborting delayed work for CAC.\n");
cancel_delayed_work_sync(&priv->dfs_cac_work);
cfg80211_cac_event(priv->netdev, &priv->dfs_chandef,
- NL80211_RADAR_CAC_ABORTED, GFP_KERNEL);
+ NL80211_RADAR_CAC_ABORTED, GFP_KERNEL,
+ 0);
}
}
@@ -221,7 +222,7 @@ int mwifiex_11h_handle_chanrpt_ready(str
cfg80211_cac_event(priv->netdev,
&priv->dfs_chandef,
NL80211_RADAR_DETECTED,
- GFP_KERNEL);
+ GFP_KERNEL, 0);
}
break;
default:
--- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
@@ -4145,7 +4145,7 @@ static int
mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_chan_def *chandef,
- u32 cac_time_ms)
+ u32 cac_time_ms, int link_id)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
struct mwifiex_radar_params radar_params;
--- a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
@@ -837,7 +837,7 @@ static int qtnf_channel_switch(struct wi
static int qtnf_start_radar_detection(struct wiphy *wiphy,
struct net_device *ndev,
struct cfg80211_chan_def *chandef,
- u32 cac_time_ms)
+ u32 cac_time_ms, int link_id)
{
struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
int ret;
--- a/drivers/net/wireless/quantenna/qtnfmac/event.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/event.c
@@ -524,14 +524,14 @@ static int qtnf_event_handle_radar(struc
break;
cfg80211_cac_event(vif->netdev, &chandef,
- NL80211_RADAR_CAC_FINISHED, GFP_KERNEL);
+ NL80211_RADAR_CAC_FINISHED, GFP_KERNEL, 0);
break;
case QLINK_RADAR_CAC_ABORTED:
if (!vif->wdev.links[0].cac_started)
break;
cfg80211_cac_event(vif->netdev, &chandef,
- NL80211_RADAR_CAC_ABORTED, GFP_KERNEL);
+ NL80211_RADAR_CAC_ABORTED, GFP_KERNEL, 0);
break;
case QLINK_RADAR_CAC_STARTED:
if (vif->wdev.links[0].cac_started)
@@ -542,7 +542,7 @@ static int qtnf_event_handle_radar(struc
break;
cfg80211_cac_event(vif->netdev, &chandef,
- NL80211_RADAR_CAC_STARTED, GFP_KERNEL);
+ NL80211_RADAR_CAC_STARTED, GFP_KERNEL, 0);
break;
default:
pr_warn("%s: unhandled radar event %u\n",
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4841,9 +4841,9 @@ struct cfg80211_ops {
int (*start_radar_detection)(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_chan_def *chandef,
- u32 cac_time_ms);
+ u32 cac_time_ms, int link_id);
void (*end_cac)(struct wiphy *wiphy,
- struct net_device *dev);
+ struct net_device *dev, unsigned int link_id);
int (*update_ft_ies)(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_update_ft_ies_params *ftie);
int (*crit_proto_start)(struct wiphy *wiphy,
@@ -8745,6 +8745,7 @@ void cfg80211_sta_opmode_change_notify(s
* @chandef: chandef for the current channel
* @event: type of event
* @gfp: context flags
+ * @link_id: valid link_id for MLO operation or 0 otherwise.
*
* This function is called when a Channel availability check (CAC) is finished
* or aborted. This must be called to notify the completion of a CAC process,
@@ -8752,7 +8753,8 @@ void cfg80211_sta_opmode_change_notify(s
*/
void cfg80211_cac_event(struct net_device *netdev,
const struct cfg80211_chan_def *chandef,
- enum nl80211_radar_event event, gfp_t gfp);
+ enum nl80211_radar_event event, gfp_t gfp,
+ unsigned int link_id);
/**
* cfg80211_background_cac_abort - Channel Availability Check offchan abort event
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1661,7 +1661,7 @@ static int ieee80211_stop_ap(struct wiph
wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work);
cfg80211_cac_event(sdata->dev, &chandef,
NL80211_RADAR_CAC_ABORTED,
- GFP_KERNEL);
+ GFP_KERNEL, 0);
}
drv_stop_ap(sdata->local, sdata, link_conf);
@@ -3459,7 +3459,7 @@ static int ieee80211_set_bitrate_mask(st
static int ieee80211_start_radar_detection(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_chan_def *chandef,
- u32 cac_time_ms)
+ u32 cac_time_ms, int link_id)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_chan_req chanreq = { .oper = *chandef };
@@ -3487,7 +3487,7 @@ static int ieee80211_start_radar_detecti
}
static void ieee80211_end_cac(struct wiphy *wiphy,
- struct net_device *dev)
+ struct net_device *dev, unsigned int link_id)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -559,7 +559,7 @@ static void ieee80211_do_stop(struct iee
ieee80211_link_release_channel(&sdata->deflink);
cfg80211_cac_event(sdata->dev, &chandef,
NL80211_RADAR_CAC_ABORTED,
- GFP_KERNEL);
+ GFP_KERNEL, 0);
}
if (sdata->vif.type == NL80211_IFTYPE_AP) {
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3043,7 +3043,7 @@ void ieee80211_dfs_cac_timer_work(struct
ieee80211_link_release_channel(link);
cfg80211_cac_event(sdata->dev, &chandef,
NL80211_RADAR_CAC_FINISHED,
- GFP_KERNEL);
+ GFP_KERNEL, 0);
}
}
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -3468,7 +3468,7 @@ void ieee80211_dfs_cac_cancel(struct iee
cfg80211_cac_event(sdata->dev,
&chandef,
NL80211_RADAR_CAC_ABORTED,
- GFP_KERNEL);
+ GFP_KERNEL, 0);
}
}
}
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -1111,18 +1111,19 @@ EXPORT_SYMBOL(__cfg80211_radar_event);
void cfg80211_cac_event(struct net_device *netdev,
const struct cfg80211_chan_def *chandef,
- enum nl80211_radar_event event, gfp_t gfp)
+ enum nl80211_radar_event event, gfp_t gfp,
+ unsigned int link_id)
{
struct wireless_dev *wdev = netdev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
unsigned long timeout;
- /* not yet supported */
- if (wdev->valid_links)
+ if (WARN_ON(wdev->valid_links &&
+ !(wdev->valid_links & BIT(link_id))))
return;
- trace_cfg80211_cac_event(netdev, event);
+ trace_cfg80211_cac_event(netdev, event, link_id);
if (WARN_ON(!wdev->links[0].cac_started &&
event != NL80211_RADAR_CAC_STARTED))
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -10122,7 +10122,20 @@ static int nl80211_start_radar_detection
goto unlock;
}
- if (cfg80211_beaconing_iface_active(wdev) || wdev->links[0].cac_started) {
+ if (cfg80211_beaconing_iface_active(wdev)) {
+ /* During MLO other link(s) can beacon, only the current link
+ * can not already beacon
+ */
+ if (wdev->valid_links &&
+ !wdev->links[0].ap.beacon_interval) {
+ /* nothing */
+ } else {
+ err = -EBUSY;
+ goto unlock;
+ }
+ }
+
+ if (wdev->links[0].cac_started) {
err = -EBUSY;
goto unlock;
}
@@ -10142,7 +10155,8 @@ static int nl80211_start_radar_detection
if (WARN_ON(!cac_time_ms))
cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
- err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
+ err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms,
+ 0);
if (!err) {
switch (wdev->iftype) {
case NL80211_IFTYPE_AP:
@@ -16512,10 +16526,10 @@ nl80211_set_ttlm(struct sk_buff *skb, st
SELECTOR(__sel, NETDEV_UP_NOTMX, \
NL80211_FLAG_NEED_NETDEV_UP | \
NL80211_FLAG_NO_WIPHY_MTX) \
- SELECTOR(__sel, NETDEV_UP_NOTMX_NOMLO, \
+ SELECTOR(__sel, NETDEV_UP_NOTMX_MLO, \
NL80211_FLAG_NEED_NETDEV_UP | \
NL80211_FLAG_NO_WIPHY_MTX | \
- NL80211_FLAG_MLO_UNSUPPORTED) \
+ NL80211_FLAG_MLO_VALID_LINK_ID) \
SELECTOR(__sel, NETDEV_UP_CLEAR, \
NL80211_FLAG_NEED_NETDEV_UP | \
NL80211_FLAG_CLEAR_SKB) \
@@ -17410,7 +17424,7 @@ static const struct genl_small_ops nl802
.flags = GENL_UNS_ADMIN_PERM,
.internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NO_WIPHY_MTX |
- NL80211_FLAG_MLO_UNSUPPORTED),
+ NL80211_FLAG_MLO_VALID_LINK_ID),
},
{
.cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -1200,26 +1200,27 @@ static inline int
rdev_start_radar_detection(struct cfg80211_registered_device *rdev,
struct net_device *dev,
struct cfg80211_chan_def *chandef,
- u32 cac_time_ms)
+ u32 cac_time_ms, int link_id)
{
int ret = -EOPNOTSUPP;
trace_rdev_start_radar_detection(&rdev->wiphy, dev, chandef,
- cac_time_ms);
+ cac_time_ms, link_id);
if (rdev->ops->start_radar_detection)
ret = rdev->ops->start_radar_detection(&rdev->wiphy, dev,
- chandef, cac_time_ms);
+ chandef, cac_time_ms,
+ link_id);
trace_rdev_return_int(&rdev->wiphy, ret);
return ret;
}
static inline void
rdev_end_cac(struct cfg80211_registered_device *rdev,
- struct net_device *dev)
+ struct net_device *dev, unsigned int link_id)
{
- trace_rdev_end_cac(&rdev->wiphy, dev);
+ trace_rdev_end_cac(&rdev->wiphy, dev, link_id);
if (rdev->ops->end_cac)
- rdev->ops->end_cac(&rdev->wiphy, dev);
+ rdev->ops->end_cac(&rdev->wiphy, dev, link_id);
trace_rdev_return_void(&rdev->wiphy);
}
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -4229,6 +4229,8 @@ EXPORT_SYMBOL(regulatory_pre_cac_allowed
static void cfg80211_check_and_end_cac(struct cfg80211_registered_device *rdev)
{
struct wireless_dev *wdev;
+ unsigned int link_id;
+
/* If we finished CAC or received radar, we should end any
* CAC running on the same channels.
* the check !cfg80211_chandef_dfs_usable contain 2 options:
@@ -4241,16 +4243,17 @@ static void cfg80211_check_and_end_cac(s
list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
struct cfg80211_chan_def *chandef;
- if (!wdev->links[0].cac_started)
- continue;
+ for_each_valid_link(wdev, link_id) {
+ if (!wdev->links[link_id].cac_started)
+ continue;
- /* FIXME: radar detection is tied to link 0 for now */
- chandef = wdev_chandef(wdev, 0);
- if (!chandef)
- continue;
+ chandef = wdev_chandef(wdev, link_id);
+ if (!chandef)
+ continue;
- if (!cfg80211_chandef_dfs_usable(&rdev->wiphy, chandef))
- rdev_end_cac(rdev, wdev->netdev);
+ if (!cfg80211_chandef_dfs_usable(&rdev->wiphy, chandef))
+ rdev_end_cac(rdev, wdev->netdev, link_id);
+ }
}
}
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -806,17 +806,21 @@ DEFINE_EVENT(wiphy_netdev_evt, rdev_flus
);
TRACE_EVENT(rdev_end_cac,
- TP_PROTO(struct wiphy *wiphy, struct net_device *netdev),
- TP_ARGS(wiphy, netdev),
+ TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+ unsigned int link_id),
+ TP_ARGS(wiphy, netdev, link_id),
TP_STRUCT__entry(
WIPHY_ENTRY
NETDEV_ENTRY
+ __field(unsigned int, link_id)
),
TP_fast_assign(
WIPHY_ASSIGN;
NETDEV_ASSIGN;
+ __entry->link_id = link_id;
),
- TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT, WIPHY_PR_ARG, NETDEV_PR_ARG)
+ TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", link_id: %d",
+ WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->link_id)
);
DECLARE_EVENT_CLASS(station_add_change,
@@ -2661,24 +2665,26 @@ TRACE_EVENT(rdev_external_auth,
TRACE_EVENT(rdev_start_radar_detection,
TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
struct cfg80211_chan_def *chandef,
- u32 cac_time_ms),
- TP_ARGS(wiphy, netdev, chandef, cac_time_ms),
+ u32 cac_time_ms, int link_id),
+ TP_ARGS(wiphy, netdev, chandef, cac_time_ms, link_id),
TP_STRUCT__entry(
WIPHY_ENTRY
NETDEV_ENTRY
CHAN_DEF_ENTRY
__field(u32, cac_time_ms)
+ __field(int, link_id)
),
TP_fast_assign(
WIPHY_ASSIGN;
NETDEV_ASSIGN;
CHAN_DEF_ASSIGN(chandef);
__entry->cac_time_ms = cac_time_ms;
+ __entry->link_id = link_id;
),
TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", " CHAN_DEF_PR_FMT
- ", cac_time_ms=%u",
+ ", cac_time_ms=%u, link_id=%d",
WIPHY_PR_ARG, NETDEV_PR_ARG, CHAN_DEF_PR_ARG,
- __entry->cac_time_ms)
+ __entry->cac_time_ms, __entry->link_id)
);
TRACE_EVENT(rdev_set_mcast_rate,
@@ -3492,18 +3498,21 @@ TRACE_EVENT(cfg80211_radar_event,
);
TRACE_EVENT(cfg80211_cac_event,
- TP_PROTO(struct net_device *netdev, enum nl80211_radar_event evt),
- TP_ARGS(netdev, evt),
+ TP_PROTO(struct net_device *netdev, enum nl80211_radar_event evt,
+ unsigned int link_id),
+ TP_ARGS(netdev, evt, link_id),
TP_STRUCT__entry(
NETDEV_ENTRY
__field(enum nl80211_radar_event, evt)
+ __field(unsigned int, link_id)
),
TP_fast_assign(
NETDEV_ASSIGN;
__entry->evt = evt;
+ __entry->link_id = link_id;
),
- TP_printk(NETDEV_PR_FMT ", event: %d",
- NETDEV_PR_ARG, __entry->evt)
+ TP_printk(NETDEV_PR_FMT ", event: %d, link_id=%u",
+ NETDEV_PR_ARG, __entry->evt, __entry->link_id)
);
DECLARE_EVENT_CLASS(cfg80211_rx_evt,

134
package/kernel/mac80211/patches/subsys/338-wifi-mac80211-handle-DFS-per-link.patch Normal file
View File

@@ -0,0 +1,134 @@
From: Aditya Kumar Singh <quic_adisi@quicinc.com>
Date: Fri, 6 Sep 2024 12:14:24 +0530
Subject: [PATCH] wifi: mac80211: handle DFS per link
In order to support DFS with MLO, handle the link ID now passed from
cfg80211, adjust the code to do everything per link and call the
notifications to cfg80211 correctly.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://patch.msgid.link/20240906064426.2101315-7-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3464,6 +3464,7 @@ static int ieee80211_start_radar_detecti
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_chan_req chanreq = { .oper = *chandef };
struct ieee80211_local *local = sdata->local;
+ struct ieee80211_link_data *link_data;
int err;
lockdep_assert_wiphy(local->hw.wiphy);
@@ -3471,16 +3472,20 @@ static int ieee80211_start_radar_detecti
if (!list_empty(&local->roc_list) || local->scanning)
return -EBUSY;
+ link_data = sdata_dereference(sdata->link[link_id], sdata);
+ if (!link_data)
+ return -ENOLINK;
+
/* whatever, but channel contexts should not complain about that one */
- sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
- sdata->deflink.needed_rx_chains = local->rx_chains;
+ link_data->smps_mode = IEEE80211_SMPS_OFF;
+ link_data->needed_rx_chains = local->rx_chains;
- err = ieee80211_link_use_channel(&sdata->deflink, &chanreq,
+ err = ieee80211_link_use_channel(link_data, &chanreq,
IEEE80211_CHANCTX_SHARED);
if (err)
return err;
- wiphy_delayed_work_queue(wiphy, &sdata->deflink.dfs_cac_timer_work,
+ wiphy_delayed_work_queue(wiphy, &link_data->dfs_cac_timer_work,
msecs_to_jiffies(cac_time_ms));
return 0;
@@ -3491,16 +3496,21 @@ static void ieee80211_end_cac(struct wip
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
+ struct ieee80211_link_data *link_data;
lockdep_assert_wiphy(local->hw.wiphy);
list_for_each_entry(sdata, &local->interfaces, list) {
+ link_data = sdata_dereference(sdata->link[link_id], sdata);
+ if (!link_data)
+ continue;
+
wiphy_delayed_work_cancel(wiphy,
- &sdata->deflink.dfs_cac_timer_work);
+ &link_data->dfs_cac_timer_work);
- if (sdata->wdev.links[0].cac_started) {
- ieee80211_link_release_channel(&sdata->deflink);
- sdata->wdev.links[0].cac_started = false;
+ if (sdata->wdev.links[link_id].cac_started) {
+ ieee80211_link_release_channel(link_data);
+ sdata->wdev.links[link_id].cac_started = false;
}
}
}
--- a/net/mac80211/link.c
+++ b/net/mac80211/link.c
@@ -77,6 +77,16 @@ void ieee80211_link_stop(struct ieee8021
&link->color_change_finalize_work);
wiphy_work_cancel(link->sdata->local->hw.wiphy,
&link->csa.finalize_work);
+
+ if (link->sdata->wdev.links[link->link_id].cac_started) {
+ wiphy_delayed_work_cancel(link->sdata->local->hw.wiphy,
+ &link->dfs_cac_timer_work);
+ cfg80211_cac_event(link->sdata->dev,
+ &link->conf->chanreq.oper,
+ NL80211_RADAR_CAC_ABORTED,
+ GFP_KERNEL, link->link_id);
+ }
+
ieee80211_link_release_channel(link);
}
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -3455,20 +3455,30 @@ void ieee80211_dfs_cac_cancel(struct iee
{
struct ieee80211_sub_if_data *sdata;
struct cfg80211_chan_def chandef;
+ struct ieee80211_link_data *link;
+ unsigned int link_id;
lockdep_assert_wiphy(local->hw.wiphy);
list_for_each_entry(sdata, &local->interfaces, list) {
- wiphy_delayed_work_cancel(local->hw.wiphy,
- &sdata->deflink.dfs_cac_timer_work);
+ for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS;
+ link_id++) {
+ link = sdata_dereference(sdata->link[link_id],
+ sdata);
+ if (!link)
+ continue;
- if (sdata->wdev.links[0].cac_started) {
- chandef = sdata->vif.bss_conf.chanreq.oper;
- ieee80211_link_release_channel(&sdata->deflink);
- cfg80211_cac_event(sdata->dev,
- &chandef,
+ wiphy_delayed_work_cancel(local->hw.wiphy,
+ &link->dfs_cac_timer_work);
+
+ if (!sdata->wdev.links[link_id].cac_started)
+ continue;
+
+ chandef = link->conf->chanreq.oper;
+ ieee80211_link_release_channel(link);
+ cfg80211_cac_event(sdata->dev, &chandef,
NL80211_RADAR_CAC_ABORTED,
- GFP_KERNEL, 0);
+ GFP_KERNEL, link_id);
}
}
}

168
package/kernel/mac80211/patches/subsys/339-wifi-cfg80211-mac80211-use-proper-link-ID-for-DFS.patch Normal file
View File

@@ -0,0 +1,168 @@
From: Aditya Kumar Singh <quic_adisi@quicinc.com>
Date: Fri, 6 Sep 2024 12:14:25 +0530
Subject: [PATCH] wifi: cfg80211/mac80211: use proper link ID for DFS
Now that all APIs have support to handle DFS per link, use proper link ID
instead of 0.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://patch.msgid.link/20240906064426.2101315-8-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1656,12 +1656,12 @@ static int ieee80211_stop_ap(struct wiph
ieee80211_link_info_change_notify(sdata, link,
BSS_CHANGED_BEACON_ENABLED);
- if (sdata->wdev.links[0].cac_started) {
+ if (sdata->wdev.links[link_id].cac_started) {
chandef = link_conf->chanreq.oper;
wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work);
cfg80211_cac_event(sdata->dev, &chandef,
NL80211_RADAR_CAC_ABORTED,
- GFP_KERNEL, 0);
+ GFP_KERNEL, link_id);
}
drv_stop_ap(sdata->local, sdata, link_conf);
@@ -3965,7 +3965,7 @@ __ieee80211_channel_switch(struct wiphy
if (!list_empty(&local->roc_list) || local->scanning)
return -EBUSY;
- if (sdata->wdev.links[0].cac_started)
+ if (sdata->wdev.links[link_id].cac_started)
return -EBUSY;
if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3039,11 +3039,11 @@ void ieee80211_dfs_cac_timer_work(struct
lockdep_assert_wiphy(sdata->local->hw.wiphy);
- if (sdata->wdev.links[0].cac_started) {
+ if (sdata->wdev.links[link->link_id].cac_started) {
ieee80211_link_release_channel(link);
cfg80211_cac_event(sdata->dev, &chandef,
NL80211_RADAR_CAC_FINISHED,
- GFP_KERNEL, 0);
+ GFP_KERNEL, link->link_id);
}
}
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -575,6 +575,7 @@ static bool __ieee80211_can_leave_ch(str
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_sub_if_data *sdata_iter;
+ unsigned int link_id;
lockdep_assert_wiphy(local->hw.wiphy);
@@ -585,8 +586,9 @@ static bool __ieee80211_can_leave_ch(str
return false;
list_for_each_entry(sdata_iter, &local->interfaces, list) {
- if (sdata_iter->wdev.links[0].cac_started)
- return false;
+ for_each_valid_link(&sdata_iter->wdev, link_id)
+ if (sdata_iter->wdev.links[link_id].cac_started)
+ return false;
}
return true;
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -1125,14 +1125,14 @@ void cfg80211_cac_event(struct net_devic
trace_cfg80211_cac_event(netdev, event, link_id);
- if (WARN_ON(!wdev->links[0].cac_started &&
+ if (WARN_ON(!wdev->links[link_id].cac_started &&
event != NL80211_RADAR_CAC_STARTED))
return;
switch (event) {
case NL80211_RADAR_CAC_FINISHED:
- timeout = wdev->links[0].cac_start_time +
- msecs_to_jiffies(wdev->links[0].cac_time_ms);
+ timeout = wdev->links[link_id].cac_start_time +
+ msecs_to_jiffies(wdev->links[link_id].cac_time_ms);
WARN_ON(!time_after_eq(jiffies, timeout));
cfg80211_set_dfs_state(wiphy, chandef, NL80211_DFS_AVAILABLE);
memcpy(&rdev->cac_done_chandef, chandef,
@@ -1141,10 +1141,10 @@ void cfg80211_cac_event(struct net_devic
cfg80211_sched_dfs_chan_update(rdev);
fallthrough;
case NL80211_RADAR_CAC_ABORTED:
- wdev->links[0].cac_started = false;
+ wdev->links[link_id].cac_started = false;
break;
case NL80211_RADAR_CAC_STARTED:
- wdev->links[0].cac_started = true;
+ wdev->links[link_id].cac_started = true;
break;
default:
WARN_ON(1);
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -6066,7 +6066,7 @@ static int nl80211_start_ap(struct sk_bu
if (!rdev->ops->start_ap)
return -EOPNOTSUPP;
- if (wdev->links[0].cac_started)
+ if (wdev->links[link_id].cac_started)
return -EBUSY;
if (wdev->links[link_id].ap.beacon_interval)
@@ -10073,6 +10073,7 @@ static int nl80211_start_radar_detection
struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct net_device *dev = info->user_ptr[1];
struct wireless_dev *wdev = dev->ieee80211_ptr;
+ int link_id = nl80211_link_id(info->attrs);
struct wiphy *wiphy = wdev->wiphy;
struct cfg80211_chan_def chandef;
enum nl80211_dfs_regions dfs_region;
@@ -10127,7 +10128,7 @@ static int nl80211_start_radar_detection
* can not already beacon
*/
if (wdev->valid_links &&
- !wdev->links[0].ap.beacon_interval) {
+ !wdev->links[link_id].ap.beacon_interval) {
/* nothing */
} else {
err = -EBUSY;
@@ -10135,7 +10136,7 @@ static int nl80211_start_radar_detection
}
}
- if (wdev->links[0].cac_started) {
+ if (wdev->links[link_id].cac_started) {
err = -EBUSY;
goto unlock;
}
@@ -10156,7 +10157,7 @@ static int nl80211_start_radar_detection
cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms,
- 0);
+ link_id);
if (!err) {
switch (wdev->iftype) {
case NL80211_IFTYPE_AP:
@@ -10172,9 +10173,9 @@ static int nl80211_start_radar_detection
default:
break;
}
- wdev->links[0].cac_started = true;
- wdev->links[0].cac_start_time = jiffies;
- wdev->links[0].cac_time_ms = cac_time_ms;
+ wdev->links[link_id].cac_started = true;
+ wdev->links[link_id].cac_start_time = jiffies;
+ wdev->links[link_id].cac_time_ms = cac_time_ms;
}
unlock:
wiphy_unlock(wiphy);

360
package/kernel/mac80211/patches/subsys/340-wifi-mac80211-handle-ieee80211_radar_detected-for-ML.patch Normal file
View File

@@ -0,0 +1,360 @@
From: Aditya Kumar Singh <quic_adisi@quicinc.com>
Date: Fri, 6 Sep 2024 12:14:26 +0530
Subject: [PATCH] wifi: mac80211: handle ieee80211_radar_detected() for MLO
Currently DFS works under assumption there could be only one channel
context in the hardware. Hence, drivers just calls the function
ieee80211_radar_detected() passing the hardware structure. However, with
MLO, this obviously will not work since number of channel contexts will be
more than one and hence drivers would need to pass the channel information
as well on which the radar is detected.
Also, when radar is detected in one of the links, other link's CAC should
not be cancelled.
Hence, in order to support DFS with MLO, do the following changes -
* Add channel context conf pointer as an argument to the function
ieee80211_radar_detected(). During MLO, drivers would have to pass on
which channel context conf radar is detected. Otherwise, drivers could
just pass NULL.
* ieee80211_radar_detected() will iterate over all channel contexts
present and
* if channel context conf is passed, only mark that as radar
detected
* if NULL is passed, then mark all channel contexts as radar
detected
* Then as usual, schedule the radar detected work.
* In the worker, go over all the contexts again and for all such context
which is marked with radar detected, cancel the ongoing CAC by calling
ieee80211_dfs_cac_cancel() and then notify cfg80211 via
cfg80211_radar_event().
* To cancel the CAC, pass the channel context as well where radar is
detected to ieee80211_dfs_cac_cancel(). This ensures that CAC is
canceled only on the links using the provided context, leaving other
links unaffected.
This would also help in scenarios where there is split phy 5 GHz radio,
which is capable of DFS channels in both lower and upper band. In this
case, simultaneous radars can be detected.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://patch.msgid.link/20240906064426.2101315-9-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -3,7 +3,7 @@
* Copyright (c) 2005-2011 Atheros Communications Inc.
* Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
* Copyright (c) 2018, The Linux Foundation. All rights reserved.
- * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2022, 2024 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <linux/module.h>
@@ -1774,7 +1774,7 @@ static ssize_t ath10k_write_simulate_rad
if (!arvif->is_started)
return -EINVAL;
- ieee80211_radar_detected(ar->hw);
+ ieee80211_radar_detected(ar->hw, NULL);
return count;
}
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1437,7 +1437,7 @@ static void ath10k_recalc_radar_detectio
* by indicating that radar was detected.
*/
ath10k_warn(ar, "failed to start CAC: %d\n", ret);
- ieee80211_radar_detected(ar->hw);
+ ieee80211_radar_detected(ar->hw, NULL);
}
}
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -3990,7 +3990,7 @@ static void ath10k_radar_detected(struct
if (ar->dfs_block_radar_events)
ath10k_info(ar, "DFS Radar detected, but ignored as requested\n");
else
- ieee80211_radar_detected(ar->hw);
+ ieee80211_radar_detected(ar->hw, NULL);
}
static void ath10k_radar_confirmation_work(struct work_struct *work)
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -8358,7 +8358,7 @@ ath11k_wmi_pdev_dfs_radar_detected_event
if (ar->dfs_block_radar_events)
ath11k_info(ab, "DFS Radar detected, but ignored as requested\n");
else
- ieee80211_radar_detected(ar->hw);
+ ieee80211_radar_detected(ar->hw, NULL);
exit:
rcu_read_unlock();
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -6789,7 +6789,7 @@ ath12k_wmi_pdev_dfs_radar_detected_event
if (ar->dfs_block_radar_events)
ath12k_info(ab, "DFS Radar detected, but ignored as requested\n");
else
- ieee80211_radar_detected(ath12k_ar_to_hw(ar));
+ ieee80211_radar_detected(ath12k_ar_to_hw(ar), NULL);
exit:
rcu_read_unlock();
--- a/drivers/net/wireless/ath/ath9k/dfs.c
+++ b/drivers/net/wireless/ath/ath9k/dfs.c
@@ -280,7 +280,7 @@ ath9k_dfs_process_radar_pulse(struct ath
if (!pd->add_pulse(pd, pe, NULL))
return;
DFS_STAT_INC(sc, radar_detected);
- ieee80211_radar_detected(sc->hw);
+ ieee80211_radar_detected(sc->hw, NULL);
}
/*
--- a/drivers/net/wireless/ath/ath9k/dfs_debug.c
+++ b/drivers/net/wireless/ath/ath9k/dfs_debug.c
@@ -116,7 +116,7 @@ static ssize_t write_file_simulate_radar
{
struct ath_softc *sc = file->private_data;
- ieee80211_radar_detected(sc->hw);
+ ieee80211_radar_detected(sc->hw, NULL);
return count;
}
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
@@ -394,7 +394,7 @@ mt7615_mcu_rx_radar_detected(struct mt76
if (mt76_phy_dfs_state(mphy) < MT_DFS_STATE_CAC)
return;
- ieee80211_radar_detected(mphy->hw);
+ ieee80211_radar_detected(mphy->hw, NULL);
dev->hw_pattern++;
}
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_dfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_dfs.c
@@ -630,7 +630,7 @@ static void mt76x02_dfs_tasklet(struct t
radar_detected = mt76x02_dfs_check_detection(dev);
if (radar_detected) {
/* sw detector rx radar pattern */
- ieee80211_radar_detected(dev->mt76.hw);
+ ieee80211_radar_detected(dev->mt76.hw, NULL);
mt76x02_dfs_detector_reset(dev);
return;
@@ -658,7 +658,7 @@ static void mt76x02_dfs_tasklet(struct t
/* hw detector rx radar pattern */
dfs_pd->stats[i].hw_pattern++;
- ieee80211_radar_detected(dev->mt76.hw);
+ ieee80211_radar_detected(dev->mt76.hw, NULL);
mt76x02_dfs_detector_reset(dev);
return;
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -293,7 +293,7 @@ mt7915_mcu_rx_radar_detected(struct mt79
&dev->rdd2_chandef,
GFP_ATOMIC);
else
- ieee80211_radar_detected(mphy->hw);
+ ieee80211_radar_detected(mphy->hw, NULL);
dev->hw_pattern++;
}
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
@@ -371,7 +371,7 @@ mt7996_mcu_rx_radar_detected(struct mt79
&dev->rdd2_chandef,
GFP_ATOMIC);
else
- ieee80211_radar_detected(mphy->hw);
+ ieee80211_radar_detected(mphy->hw, NULL);
dev->hw_pattern++;
}
--- a/drivers/net/wireless/ti/wl18xx/event.c
+++ b/drivers/net/wireless/ti/wl18xx/event.c
@@ -142,7 +142,7 @@ int wl18xx_process_mailbox_events(struct
wl18xx_radar_type_decode(mbox->radar_type));
if (!wl->radar_debug_mode)
- ieee80211_radar_detected(wl->hw);
+ ieee80211_radar_detected(wl->hw, NULL);
}
if (vector & PERIODIC_SCAN_REPORT_EVENT_ID) {
--- a/drivers/net/wireless/virtual/mac80211_hwsim.c
+++ b/drivers/net/wireless/virtual/mac80211_hwsim.c
@@ -1146,7 +1146,7 @@ static int hwsim_write_simulate_radar(vo
{
struct mac80211_hwsim_data *data = dat;
- ieee80211_radar_detected(data->hw);
+ ieee80211_radar_detected(data->hw, NULL);
return 0;
}
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -6717,8 +6717,11 @@ void ieee80211_cqm_beacon_loss_notify(st
* ieee80211_radar_detected - inform that a radar was detected
*
* @hw: pointer as obtained from ieee80211_alloc_hw()
+ * @chanctx_conf: Channel context on which radar is detected. Mandatory to
+ * pass a valid pointer during MLO. For non-MLO %NULL can be passed
*/
-void ieee80211_radar_detected(struct ieee80211_hw *hw);
+void ieee80211_radar_detected(struct ieee80211_hw *hw,
+ struct ieee80211_chanctx_conf *chanctx_conf);
/**
* ieee80211_chswitch_done - Complete channel switch process
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -681,6 +681,7 @@ ieee80211_alloc_chanctx(struct ieee80211
ctx->mode = mode;
ctx->conf.radar_enabled = false;
ctx->conf.radio_idx = radio_idx;
+ ctx->radar_detected = false;
_ieee80211_recalc_chanctx_min_def(local, ctx, NULL, false);
return ctx;
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -895,6 +895,8 @@ struct ieee80211_chanctx {
struct ieee80211_chan_req req;
struct ieee80211_chanctx_conf conf;
+
+ bool radar_detected;
};
struct mac80211_qos_map {
@@ -2632,7 +2634,8 @@ void ieee80211_recalc_chanctx_min_def(st
bool ieee80211_is_radar_required(struct ieee80211_local *local);
void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work);
-void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
+void ieee80211_dfs_cac_cancel(struct ieee80211_local *local,
+ struct ieee80211_chanctx *chanctx);
void ieee80211_dfs_radar_detected_work(struct wiphy *wiphy,
struct wiphy_work *work);
int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -32,7 +32,7 @@ int __ieee80211_suspend(struct ieee80211
ieee80211_scan_cancel(local);
- ieee80211_dfs_cac_cancel(local);
+ ieee80211_dfs_cac_cancel(local, NULL);
ieee80211_roc_purge(local, NULL);
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -3451,11 +3451,16 @@ u64 ieee80211_calculate_rx_timestamp(str
return ts;
}
-void ieee80211_dfs_cac_cancel(struct ieee80211_local *local)
+/* Cancel CAC for the interfaces under the specified @local. If @ctx is
+ * also provided, only the interfaces using that ctx will be canceled.
+ */
+void ieee80211_dfs_cac_cancel(struct ieee80211_local *local,
+ struct ieee80211_chanctx *ctx)
{
struct ieee80211_sub_if_data *sdata;
struct cfg80211_chan_def chandef;
struct ieee80211_link_data *link;
+ struct ieee80211_chanctx_conf *chanctx_conf;
unsigned int link_id;
lockdep_assert_wiphy(local->hw.wiphy);
@@ -3468,6 +3473,11 @@ void ieee80211_dfs_cac_cancel(struct iee
if (!link)
continue;
+ chanctx_conf = sdata_dereference(link->conf->chanctx_conf,
+ sdata);
+ if (ctx && &ctx->conf != chanctx_conf)
+ continue;
+
wiphy_delayed_work_cancel(local->hw.wiphy,
&link->dfs_cac_timer_work);
@@ -3488,9 +3498,8 @@ void ieee80211_dfs_radar_detected_work(s
{
struct ieee80211_local *local =
container_of(work, struct ieee80211_local, radar_detected_work);
- struct cfg80211_chan_def chandef = local->hw.conf.chandef;
+ struct cfg80211_chan_def chandef;
struct ieee80211_chanctx *ctx;
- int num_chanctx = 0;
lockdep_assert_wiphy(local->hw.wiphy);
@@ -3498,25 +3507,46 @@ void ieee80211_dfs_radar_detected_work(s
if (ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER)
continue;
- num_chanctx++;
+ if (!ctx->radar_detected)
+ continue;
+
+ ctx->radar_detected = false;
+
chandef = ctx->conf.def;
+
+ ieee80211_dfs_cac_cancel(local, ctx);
+ cfg80211_radar_event(local->hw.wiphy, &chandef, GFP_KERNEL);
}
+}
- ieee80211_dfs_cac_cancel(local);
+static void
+ieee80211_radar_mark_chan_ctx_iterator(struct ieee80211_hw *hw,
+ struct ieee80211_chanctx_conf *chanctx_conf,
+ void *data)
+{
+ struct ieee80211_chanctx *ctx =
+ container_of(chanctx_conf, struct ieee80211_chanctx,
+ conf);
- if (num_chanctx > 1)
- /* XXX: multi-channel is not supported yet */
- WARN_ON(1);
- else
- cfg80211_radar_event(local->hw.wiphy, &chandef, GFP_KERNEL);
+ if (ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER)
+ return;
+
+ if (data && data != chanctx_conf)
+ return;
+
+ ctx->radar_detected = true;
}
-void ieee80211_radar_detected(struct ieee80211_hw *hw)
+void ieee80211_radar_detected(struct ieee80211_hw *hw,
+ struct ieee80211_chanctx_conf *chanctx_conf)
{
struct ieee80211_local *local = hw_to_local(hw);
trace_api_radar_detected(local);
+ ieee80211_iter_chan_contexts_atomic(hw, ieee80211_radar_mark_chan_ctx_iterator,
+ chanctx_conf);
+
wiphy_work_queue(hw->wiphy, &local->radar_detected_work);
}
EXPORT_SYMBOL(ieee80211_radar_detected);

79
package/kernel/mac80211/patches/subsys/341-wifi-mac80211-skip-non-uploaded-keys-in-ieee80211_it.patch Normal file
View File

@@ -0,0 +1,79 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Sun, 6 Oct 2024 17:34:08 +0200
Subject: [PATCH] wifi: mac80211: skip non-uploaded keys in ieee80211_iter_keys
Sync iterator conditions with ieee80211_iter_keys_rcu.
Fixes: 830af02f24fb ("mac80211: allow driver to iterate keys")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -987,6 +987,26 @@ void ieee80211_reenable_keys(struct ieee
}
}
+static void
+ieee80211_key_iter(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_key *key,
+ void (*iter)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key,
+ void *data),
+ void *iter_data)
+{
+ /* skip keys of station in removal process */
+ if (key->sta && key->sta->removed)
+ return;
+ if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
+ return;
+ iter(hw, vif, key->sta ? &key->sta->sta : NULL,
+ &key->conf, iter_data);
+}
+
void ieee80211_iter_keys(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
void (*iter)(struct ieee80211_hw *hw,
@@ -1005,16 +1025,13 @@ void ieee80211_iter_keys(struct ieee8021
if (vif) {
sdata = vif_to_sdata(vif);
list_for_each_entry_safe(key, tmp, &sdata->key_list, list)
- iter(hw, &sdata->vif,
- key->sta ? &key->sta->sta : NULL,
- &key->conf, iter_data);
+ ieee80211_key_iter(hw, vif, key, iter, iter_data);
} else {
list_for_each_entry(sdata, &local->interfaces, list)
list_for_each_entry_safe(key, tmp,
&sdata->key_list, list)
- iter(hw, &sdata->vif,
- key->sta ? &key->sta->sta : NULL,
- &key->conf, iter_data);
+ ieee80211_key_iter(hw, &sdata->vif, key,
+ iter, iter_data);
}
}
EXPORT_SYMBOL(ieee80211_iter_keys);
@@ -1031,17 +1048,8 @@ _ieee80211_iter_keys_rcu(struct ieee8021
{
struct ieee80211_key *key;
- list_for_each_entry_rcu(key, &sdata->key_list, list) {
- /* skip keys of station in removal process */
- if (key->sta && key->sta->removed)
- continue;
- if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
- continue;
-
- iter(hw, &sdata->vif,
- key->sta ? &key->sta->sta : NULL,
- &key->conf, iter_data);
- }
+ list_for_each_entry_rcu(key, &sdata->key_list, list)
+ ieee80211_key_iter(hw, &sdata->vif, key, iter, iter_data);
}
void ieee80211_iter_keys_rcu(struct ieee80211_hw *hw,

309
package/kernel/mac80211/patches/subsys/350-wifi-cfg80211-add-option-for-vif-allowed-radios.patch Normal file
View File

@@ -0,0 +1,309 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 17 Jul 2024 15:43:52 +0200
Subject: [PATCH] wifi: cfg80211: add option for vif allowed radios
This allows users to prevent a vif from affecting radios other than the
configured ones. This can be useful in cases where e.g. an AP is running
on one radio, and triggering a scan on another radio should not disturb it.
Changing the allowed radios list for a vif is supported, but only while
it is down.
While it is possible to achieve the same by always explicitly specifying
a frequency list for scan requests and ensuring that the wrong channel/band
is never accidentally set on an unrelated interface, this change makes
multi-radio wiphy setups a lot easier to deal with for CLI users.
By itself, this patch only enforces the radio mask for scanning requests
and remain-on-channel. Follow-up changes build on this to limit configured
frequencies.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -6227,6 +6227,7 @@ enum ieee80211_ap_reg_power {
* entered.
* @links[].cac_time_ms: CAC time in ms
* @valid_links: bitmap describing what elements of @links are valid
+ * @radio_mask: Bitmask of radios that this interface is allowed to operate on.
*/
struct wireless_dev {
struct wiphy *wiphy;
@@ -6339,6 +6340,8 @@ struct wireless_dev {
unsigned int cac_time_ms;
} links[IEEE80211_MLD_MAX_NUM_LINKS];
u16 valid_links;
+
+ u32 radio_mask;
};
static inline const u8 *wdev_address(struct wireless_dev *wdev)
@@ -6525,6 +6528,17 @@ bool cfg80211_radio_chandef_valid(const
const struct cfg80211_chan_def *chandef);
/**
+ * cfg80211_wdev_channel_allowed - Check if the wdev may use the channel
+ *
+ * @wdev: the wireless device
+ * @chan: channel to check
+ *
+ * Return: whether or not the wdev may use the channel
+ */
+bool cfg80211_wdev_channel_allowed(struct wireless_dev *wdev,
+ struct ieee80211_channel *chan);
+
+/**
* ieee80211_get_response_rate - get basic rate for a given rate
*
* @sband: the band to look for rates in
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -2868,6 +2868,9 @@ enum nl80211_commands {
* nested item, it contains attributes defined in
* &enum nl80211_if_combination_attrs.
*
+ * @NL80211_ATTR_VIF_RADIO_MASK: Bitmask of allowed radios (u32).
+ * A value of 0 means all radios.
+ *
* @NUM_NL80211_ATTR: total number of nl80211_attrs available
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
@@ -3416,6 +3419,8 @@ enum nl80211_attrs {
NL80211_ATTR_WIPHY_RADIOS,
NL80211_ATTR_WIPHY_INTERFACE_COMBINATIONS,
+ NL80211_ATTR_VIF_RADIO_MASK,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -829,6 +829,7 @@ static const struct nla_policy nl80211_p
[NL80211_ATTR_MLO_TTLM_DLINK] = NLA_POLICY_EXACT_LEN(sizeof(u16) * 8),
[NL80211_ATTR_MLO_TTLM_ULINK] = NLA_POLICY_EXACT_LEN(sizeof(u16) * 8),
[NL80211_ATTR_ASSOC_SPP_AMSDU] = { .type = NLA_FLAG },
+ [NL80211_ATTR_VIF_RADIO_MASK] = { .type = NLA_U32 },
};
/* policy for the key attributes */
@@ -3996,7 +3997,8 @@ static int nl80211_send_iface(struct sk_
nla_put_u32(msg, NL80211_ATTR_GENERATION,
rdev->devlist_generation ^
(cfg80211_rdev_list_generation << 2)) ||
- nla_put_u8(msg, NL80211_ATTR_4ADDR, wdev->use_4addr))
+ nla_put_u8(msg, NL80211_ATTR_4ADDR, wdev->use_4addr) ||
+ nla_put_u32(msg, NL80211_ATTR_VIF_RADIO_MASK, wdev->radio_mask))
goto nla_put_failure;
if (rdev->ops->get_channel && !wdev->valid_links) {
@@ -4312,6 +4314,29 @@ static int nl80211_valid_4addr(struct cf
return -EOPNOTSUPP;
}
+static int nl80211_parse_vif_radio_mask(struct genl_info *info,
+ u32 *radio_mask)
+{
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct nlattr *attr = info->attrs[NL80211_ATTR_VIF_RADIO_MASK];
+ u32 mask, allowed;
+
+ if (!attr) {
+ *radio_mask = 0;
+ return 0;
+ }
+
+ allowed = BIT(rdev->wiphy.n_radio) - 1;
+ mask = nla_get_u32(attr);
+ if (mask & ~allowed)
+ return -EINVAL;
+ if (!mask)
+ mask = allowed;
+ *radio_mask = mask;
+
+ return 1;
+}
+
static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *rdev = info->user_ptr[0];
@@ -4319,6 +4344,8 @@ static int nl80211_set_interface(struct
int err;
enum nl80211_iftype otype, ntype;
struct net_device *dev = info->user_ptr[1];
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ u32 radio_mask = 0;
bool change = false;
memset(&params, 0, sizeof(params));
@@ -4332,8 +4359,6 @@ static int nl80211_set_interface(struct
}
if (info->attrs[NL80211_ATTR_MESH_ID]) {
- struct wireless_dev *wdev = dev->ieee80211_ptr;
-
if (ntype != NL80211_IFTYPE_MESH_POINT)
return -EINVAL;
if (otype != NL80211_IFTYPE_MESH_POINT)
@@ -4364,6 +4389,12 @@ static int nl80211_set_interface(struct
if (err > 0)
change = true;
+ err = nl80211_parse_vif_radio_mask(info, &radio_mask);
+ if (err < 0)
+ return err;
+ if (err && netif_running(dev))
+ return -EBUSY;
+
if (change)
err = cfg80211_change_iface(rdev, dev, ntype, &params);
else
@@ -4372,11 +4403,11 @@ static int nl80211_set_interface(struct
if (!err && params.use_4addr != -1)
dev->ieee80211_ptr->use_4addr = params.use_4addr;
- if (change && !err) {
- struct wireless_dev *wdev = dev->ieee80211_ptr;
+ if (radio_mask)
+ wdev->radio_mask = radio_mask;
+ if (change && !err)
nl80211_notify_iface(rdev, wdev, NL80211_CMD_SET_INTERFACE);
- }
return err;
}
@@ -4387,6 +4418,7 @@ static int _nl80211_new_interface(struct
struct vif_params params;
struct wireless_dev *wdev;
struct sk_buff *msg;
+ u32 radio_mask;
int err;
enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
@@ -4424,6 +4456,10 @@ static int _nl80211_new_interface(struct
if (err < 0)
return err;
+ err = nl80211_parse_vif_radio_mask(info, &radio_mask);
+ if (err < 0)
+ return err;
+
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
return -ENOMEM;
@@ -4465,6 +4501,9 @@ static int _nl80211_new_interface(struct
break;
}
+ if (radio_mask)
+ wdev->radio_mask = radio_mask;
+
if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
rdev, wdev, NL80211_CMD_NEW_INTERFACE) < 0) {
nlmsg_free(msg);
@@ -9180,6 +9219,9 @@ static bool cfg80211_off_channel_oper_al
lockdep_assert_wiphy(wdev->wiphy);
+ if (!cfg80211_wdev_channel_allowed(wdev, chan))
+ return false;
+
if (!cfg80211_beaconing_iface_active(wdev))
return true;
@@ -9392,7 +9434,8 @@ static int nl80211_trigger_scan(struct s
}
/* ignore disabled channels */
- if (chan->flags & IEEE80211_CHAN_DISABLED)
+ if (chan->flags & IEEE80211_CHAN_DISABLED ||
+ !cfg80211_wdev_channel_allowed(wdev, chan))
continue;
request->channels[i] = chan;
@@ -9412,7 +9455,8 @@ static int nl80211_trigger_scan(struct s
chan = &wiphy->bands[band]->channels[j];
- if (chan->flags & IEEE80211_CHAN_DISABLED)
+ if (chan->flags & IEEE80211_CHAN_DISABLED ||
+ !cfg80211_wdev_channel_allowed(wdev, chan))
continue;
request->channels[i] = chan;
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -956,7 +956,8 @@ static int cfg80211_scan_6ghz(struct cfg
struct ieee80211_channel *chan =
ieee80211_get_channel(&rdev->wiphy, ap->center_freq);
- if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
+ if (!chan || chan->flags & IEEE80211_CHAN_DISABLED ||
+ !cfg80211_wdev_channel_allowed(rdev_req->wdev, chan))
continue;
for (i = 0; i < rdev_req->n_channels; i++) {
@@ -3490,9 +3491,12 @@ int cfg80211_wext_siwscan(struct net_dev
continue;
for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
+ struct ieee80211_channel *chan;
+
/* ignore disabled channels */
- if (wiphy->bands[band]->channels[j].flags &
- IEEE80211_CHAN_DISABLED)
+ chan = &wiphy->bands[band]->channels[j];
+ if (chan->flags & IEEE80211_CHAN_DISABLED ||
+ !cfg80211_wdev_channel_allowed(creq->wdev, chan))
continue;
/* If we have a wireless request structure and the
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -2923,3 +2923,32 @@ bool cfg80211_radio_chandef_valid(const
return true;
}
EXPORT_SYMBOL(cfg80211_radio_chandef_valid);
+
+bool cfg80211_wdev_channel_allowed(struct wireless_dev *wdev,
+ struct ieee80211_channel *chan)
+{
+ struct wiphy *wiphy = wdev->wiphy;
+ const struct wiphy_radio *radio;
+ struct cfg80211_chan_def chandef;
+ u32 radio_mask;
+ int i;
+
+ radio_mask = wdev->radio_mask;
+ if (!wiphy->n_radio || radio_mask == BIT(wiphy->n_radio) - 1)
+ return true;
+
+ cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_HT20);
+ for (i = 0; i < wiphy->n_radio; i++) {
+ if (!(radio_mask & BIT(i)))
+ continue;
+
+ radio = &wiphy->radio[i];
+ if (!cfg80211_radio_chandef_valid(radio, &chandef))
+ continue;
+
+ return true;
+ }
+
+ return false;
+}
+EXPORT_SYMBOL(cfg80211_wdev_channel_allowed);
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -1415,6 +1415,8 @@ void cfg80211_init_wdev(struct wireless_
/* allow mac80211 to determine the timeout */
wdev->ps_timeout = -1;
+ wdev->radio_mask = BIT(wdev->wiphy->n_radio) - 1;
+
if ((wdev->iftype == NL80211_IFTYPE_STATION ||
wdev->iftype == NL80211_IFTYPE_P2P_CLIENT ||
wdev->iftype == NL80211_IFTYPE_ADHOC) && !wdev->use_4addr)

79
package/kernel/mac80211/patches/subsys/351-wifi-mac80211-use-vif-radio-mask-to-limit-ibss-scan-.patch Normal file
View File

@@ -0,0 +1,79 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 26 Sep 2024 14:06:11 +0200
Subject: [PATCH] wifi: mac80211: use vif radio mask to limit ibss scan
frequencies
Reject frequencies not supported by any radio that the vif is allowed to use.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -1178,14 +1178,14 @@ int ieee80211_request_ibss_scan(struct i
unsigned int n_channels)
{
struct ieee80211_local *local = sdata->local;
- int ret = -EBUSY, i, n_ch = 0;
+ int i, n_ch = 0;
enum nl80211_band band;
lockdep_assert_wiphy(local->hw.wiphy);
/* busy scanning */
if (local->scan_req)
- goto unlock;
+ return -EBUSY;
/* fill internal scan request */
if (!channels) {
@@ -1202,7 +1202,9 @@ int ieee80211_request_ibss_scan(struct i
&local->hw.wiphy->bands[band]->channels[i];
if (tmp_ch->flags & (IEEE80211_CHAN_NO_IR |
- IEEE80211_CHAN_DISABLED))
+ IEEE80211_CHAN_DISABLED) ||
+ !cfg80211_wdev_channel_allowed(&sdata->wdev,
+ tmp_ch))
continue;
local->int_scan_req->channels[n_ch] = tmp_ch;
@@ -1211,21 +1213,23 @@ int ieee80211_request_ibss_scan(struct i
}
if (WARN_ON_ONCE(n_ch == 0))
- goto unlock;
+ return -EINVAL;
local->int_scan_req->n_channels = n_ch;
} else {
for (i = 0; i < n_channels; i++) {
if (channels[i]->flags & (IEEE80211_CHAN_NO_IR |
- IEEE80211_CHAN_DISABLED))
+ IEEE80211_CHAN_DISABLED) ||
+ !cfg80211_wdev_channel_allowed(&sdata->wdev,
+ channels[i]))
continue;
local->int_scan_req->channels[n_ch] = channels[i];
n_ch++;
}
- if (WARN_ON_ONCE(n_ch == 0))
- goto unlock;
+ if (n_ch == 0)
+ return -EINVAL;
local->int_scan_req->n_channels = n_ch;
}
@@ -1235,9 +1239,7 @@ int ieee80211_request_ibss_scan(struct i
memcpy(local->int_scan_req->ssids[0].ssid, ssid, IEEE80211_MAX_SSID_LEN);
local->int_scan_req->ssids[0].ssid_len = ssid_len;
- ret = __ieee80211_start_scan(sdata, sdata->local->int_scan_req);
- unlock:
- return ret;
+ return __ieee80211_start_scan(sdata, sdata->local->int_scan_req);
}
void ieee80211_scan_cancel(struct ieee80211_local *local)

52
package/kernel/mac80211/patches/subsys/352-wifi-mac80211-use-vif-radio-mask-to-limit-chanctx-an.patch Normal file
View File

@@ -0,0 +1,52 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 26 Sep 2024 14:07:50 +0200
Subject: [PATCH] wifi: mac80211: use vif radio mask to limit creating chanctx
Reject frequencies not supported by any radio that the vif is allowed to use.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -1167,7 +1167,7 @@ ieee80211_replace_chanctx(struct ieee802
static bool
ieee80211_find_available_radio(struct ieee80211_local *local,
const struct ieee80211_chan_req *chanreq,
- int *radio_idx)
+ u32 radio_mask, int *radio_idx)
{
struct wiphy *wiphy = local->hw.wiphy;
const struct wiphy_radio *radio;
@@ -1178,6 +1178,9 @@ ieee80211_find_available_radio(struct ie
return true;
for (i = 0; i < wiphy->n_radio; i++) {
+ if (!(radio_mask & BIT(i)))
+ continue;
+
radio = &wiphy->radio[i];
if (!cfg80211_radio_chandef_valid(radio, &chanreq->oper))
continue;
@@ -1211,7 +1214,9 @@ int ieee80211_link_reserve_chanctx(struc
new_ctx = ieee80211_find_reservation_chanctx(local, chanreq, mode);
if (!new_ctx) {
if (ieee80211_can_create_new_chanctx(local, -1) &&
- ieee80211_find_available_radio(local, chanreq, &radio_idx))
+ ieee80211_find_available_radio(local, chanreq,
+ sdata->wdev.radio_mask,
+ &radio_idx))
new_ctx = ieee80211_new_chanctx(local, chanreq, mode,
false, radio_idx);
else
@@ -1881,7 +1886,9 @@ int _ieee80211_link_use_channel(struct i
/* Note: context is now reserved */
if (ctx)
reserved = true;
- else if (!ieee80211_find_available_radio(local, chanreq, &radio_idx))
+ else if (!ieee80211_find_available_radio(local, chanreq,
+ sdata->wdev.radio_mask,
+ &radio_idx))
ctx = ERR_PTR(-EBUSY);
else
ctx = ieee80211_new_chanctx(local, chanreq, mode,

67
package/kernel/mac80211/patches/subsys/353-wifi-mac80211-remove-status-ampdu_delimiter_crc.patch Normal file
View File

@@ -0,0 +1,67 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 17 Jul 2024 22:49:16 +0200
Subject: [PATCH] wifi: mac80211: remove status->ampdu_delimiter_crc
This was never used by any driver, so remove it to free up some space.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1448,8 +1448,6 @@ ieee80211_tx_info_clear_status(struct ie
* @RX_FLAG_AMPDU_IS_LAST: this subframe is the last subframe of the A-MPDU
* @RX_FLAG_AMPDU_DELIM_CRC_ERROR: A delimiter CRC error has been detected
* on this subframe
- * @RX_FLAG_AMPDU_DELIM_CRC_KNOWN: The delimiter CRC field is known (the CRC
- * is stored in the @ampdu_delimiter_crc field)
* @RX_FLAG_MIC_STRIPPED: The mic was stripped of this packet. Decryption was
* done by the hardware
* @RX_FLAG_ONLY_MONITOR: Report frame only to monitor interfaces without
@@ -1521,7 +1519,7 @@ enum mac80211_rx_flags {
RX_FLAG_AMPDU_LAST_KNOWN = BIT(12),
RX_FLAG_AMPDU_IS_LAST = BIT(13),
RX_FLAG_AMPDU_DELIM_CRC_ERROR = BIT(14),
- RX_FLAG_AMPDU_DELIM_CRC_KNOWN = BIT(15),
+ /* one free bit at 15 */
RX_FLAG_MACTIME = BIT(16) | BIT(17),
RX_FLAG_MACTIME_PLCP_START = 1 << 16,
RX_FLAG_MACTIME_START = 2 << 16,
@@ -1618,7 +1616,6 @@ enum mac80211_rx_encoding {
* @rx_flags: internal RX flags for mac80211
* @ampdu_reference: A-MPDU reference number, must be a different value for
* each A-MPDU but the same for each subframe within one A-MPDU
- * @ampdu_delimiter_crc: A-MPDU delimiter CRC
* @zero_length_psdu_type: radiotap type of the 0-length PSDU
* @link_valid: if the link which is identified by @link_id is valid. This flag
* is set only when connection is MLO.
@@ -1656,7 +1653,6 @@ struct ieee80211_rx_status {
s8 signal;
u8 chains;
s8 chain_signal[IEEE80211_MAX_CHAINS];
- u8 ampdu_delimiter_crc;
u8 zero_length_psdu_type;
u8 link_valid:1, link_id:4;
};
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -508,18 +508,13 @@ ieee80211_add_rx_radiotap_header(struct
flags |= IEEE80211_RADIOTAP_AMPDU_IS_LAST;
if (status->flag & RX_FLAG_AMPDU_DELIM_CRC_ERROR)
flags |= IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_ERR;
- if (status->flag & RX_FLAG_AMPDU_DELIM_CRC_KNOWN)
- flags |= IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_KNOWN;
if (status->flag & RX_FLAG_AMPDU_EOF_BIT_KNOWN)
flags |= IEEE80211_RADIOTAP_AMPDU_EOF_KNOWN;
if (status->flag & RX_FLAG_AMPDU_EOF_BIT)
flags |= IEEE80211_RADIOTAP_AMPDU_EOF;
put_unaligned_le16(flags, pos);
pos += 2;
- if (status->flag & RX_FLAG_AMPDU_DELIM_CRC_KNOWN)
- *pos++ = status->ampdu_delimiter_crc;
- else
- *pos++ = 0;
+ *pos++ = 0;
*pos++ = 0;
}

165
package/kernel/mac80211/patches/subsys/354-wifi-cfg80211-pass-net_device-to-.set_monitor_channel.patch Normal file
View File

@@ -0,0 +1,165 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 26 Sep 2024 19:52:30 +0200
Subject: [PATCH] wifi: cfg80211: pass net_device to .set_monitor_channel
Preparation for allowing multiple monitor interfaces with different channels
on a multi-radio wiphy.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -1493,6 +1493,7 @@ out:
}
static int wil_cfg80211_set_channel(struct wiphy *wiphy,
+ struct net_device *dev,
struct cfg80211_chan_def *chandef)
{
struct wil6210_priv *wil = wiphy_to_wil(wiphy);
--- a/drivers/net/wireless/marvell/libertas/cfg.c
+++ b/drivers/net/wireless/marvell/libertas/cfg.c
@@ -486,6 +486,7 @@ static int lbs_add_wps_enrollee_tlv(u8 *
*/
static int lbs_cfg_set_monitor_channel(struct wiphy *wiphy,
+ struct net_device *dev,
struct cfg80211_chan_def *chandef)
{
struct lbs_private *priv = wiphy_priv(wiphy);
--- a/drivers/net/wireless/microchip/wilc1000/cfg80211.c
+++ b/drivers/net/wireless/microchip/wilc1000/cfg80211.c
@@ -231,6 +231,7 @@ struct wilc_vif *wilc_get_wl_to_vif(stru
}
static int set_channel(struct wiphy *wiphy,
+ struct net_device *dev,
struct cfg80211_chan_def *chandef)
{
struct wilc *wl = wiphy_priv(wiphy);
@@ -1424,7 +1425,7 @@ static int start_ap(struct wiphy *wiphy,
struct wilc_vif *vif = netdev_priv(dev);
int ret;
- ret = set_channel(wiphy, &settings->chandef);
+ ret = set_channel(wiphy, dev, &settings->chandef);
if (ret != 0)
netdev_err(dev, "Error in setting channel\n");
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4700,6 +4700,7 @@ struct cfg80211_ops {
struct ieee80211_channel *chan);
int (*set_monitor_channel)(struct wiphy *wiphy,
+ struct net_device *dev,
struct cfg80211_chan_def *chandef);
int (*scan)(struct wiphy *wiphy,
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -879,6 +879,7 @@ static int ieee80211_get_station(struct
}
static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
+ struct net_device *dev,
struct cfg80211_chan_def *chandef)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -1673,6 +1673,7 @@ bool cfg80211_reg_check_beaconing(struct
EXPORT_SYMBOL(cfg80211_reg_check_beaconing);
int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
+ struct net_device *dev,
struct cfg80211_chan_def *chandef)
{
if (!rdev->ops->set_monitor_channel)
@@ -1680,7 +1681,7 @@ int cfg80211_set_monitor_channel(struct
if (!cfg80211_has_monitors_only(rdev))
return -EBUSY;
- return rdev_set_monitor_channel(rdev, chandef);
+ return rdev_set_monitor_channel(rdev, dev, chandef);
}
bool cfg80211_any_usable_channels(struct wiphy *wiphy,
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -510,6 +510,7 @@ static inline unsigned int elapsed_jiffi
}
int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
+ struct net_device *dev,
struct cfg80211_chan_def *chandef);
int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3562,7 +3562,7 @@ static int __nl80211_set_channel(struct
case NL80211_IFTYPE_MESH_POINT:
return cfg80211_set_mesh_channel(rdev, wdev, &chandef);
case NL80211_IFTYPE_MONITOR:
- return cfg80211_set_monitor_channel(rdev, &chandef);
+ return cfg80211_set_monitor_channel(rdev, dev, &chandef);
default:
break;
}
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -445,11 +445,12 @@ rdev_libertas_set_mesh_channel(struct cf
static inline int
rdev_set_monitor_channel(struct cfg80211_registered_device *rdev,
+ struct net_device *dev,
struct cfg80211_chan_def *chandef)
{
int ret;
- trace_rdev_set_monitor_channel(&rdev->wiphy, chandef);
- ret = rdev->ops->set_monitor_channel(&rdev->wiphy, chandef);
+ trace_rdev_set_monitor_channel(&rdev->wiphy, dev, chandef);
+ ret = rdev->ops->set_monitor_channel(&rdev->wiphy, dev, chandef);
trace_rdev_return_int(&rdev->wiphy, ret);
return ret;
}
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -1318,19 +1318,21 @@ TRACE_EVENT(rdev_libertas_set_mesh_chann
);
TRACE_EVENT(rdev_set_monitor_channel,
- TP_PROTO(struct wiphy *wiphy,
+ TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
struct cfg80211_chan_def *chandef),
- TP_ARGS(wiphy, chandef),
+ TP_ARGS(wiphy, netdev, chandef),
TP_STRUCT__entry(
WIPHY_ENTRY
+ NETDEV_ENTRY
CHAN_DEF_ENTRY
),
TP_fast_assign(
WIPHY_ASSIGN;
+ NETDEV_ASSIGN;
CHAN_DEF_ASSIGN(chandef);
),
- TP_printk(WIPHY_PR_FMT ", " CHAN_DEF_PR_FMT,
- WIPHY_PR_ARG, CHAN_DEF_PR_ARG)
+ TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", " CHAN_DEF_PR_FMT,
+ WIPHY_PR_ARG, NETDEV_PR_ARG, CHAN_DEF_PR_ARG)
);
TRACE_EVENT(rdev_auth,
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -830,7 +830,7 @@ static int cfg80211_wext_siwfreq(struct
ret = -EINVAL;
break;
}
- ret = cfg80211_set_monitor_channel(rdev, &chandef);
+ ret = cfg80211_set_monitor_channel(rdev, dev, &chandef);
break;
case NL80211_IFTYPE_MESH_POINT:
freq = cfg80211_wext_freq(wextfreq);

337
package/kernel/mac80211/patches/subsys/355-wifi-mac80211-add-flag-to-opt-out-of-virtual-monitor.patch Normal file
View File

@@ -0,0 +1,337 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 30 Sep 2024 15:09:45 +0200
Subject: [PATCH] wifi: mac80211: add flag to opt out of virtual monitor
support
This is useful for multi-radio devices that are capable of monitoring on
multiple channels simultanenously. When this flag is set, each monitor
interface is passed to the driver individually and can have a configured
channel.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2679,6 +2679,11 @@ struct ieee80211_txq {
* a virtual monitor interface when monitor interfaces are the only
* active interfaces.
*
+ * @IEEE80211_HW_NO_VIRTUAL_MONITOR: The driver would like to be informed
+ * of any monitor interface, as well as their configured channel.
+ * This is useful for supporting multiple monitor interfaces on different
+ * channels.
+ *
* @IEEE80211_HW_NO_AUTO_VIF: The driver would like for no wlanX to
* be created. It is expected user-space will create vifs as
* desired (and thus have them named as desired).
@@ -2838,6 +2843,7 @@ enum ieee80211_hw_flags {
IEEE80211_HW_SUPPORTS_DYNAMIC_PS,
IEEE80211_HW_MFP_CAPABLE,
IEEE80211_HW_WANT_MONITOR_VIF,
+ IEEE80211_HW_NO_VIRTUAL_MONITOR,
IEEE80211_HW_NO_AUTO_VIF,
IEEE80211_HW_SW_CRYPTO_CONTROL,
IEEE80211_HW_SUPPORT_FAST_XMIT,
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -105,8 +105,11 @@ static int ieee80211_set_mon_options(str
}
/* also validate MU-MIMO change */
- monitor_sdata = wiphy_dereference(local->hw.wiphy,
- local->monitor_sdata);
+ if (ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
+ monitor_sdata = sdata;
+ else
+ monitor_sdata = wiphy_dereference(local->hw.wiphy,
+ local->monitor_sdata);
if (!monitor_sdata &&
(params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
@@ -114,7 +117,9 @@ static int ieee80211_set_mon_options(str
/* apply all changes now - no failures allowed */
- if (monitor_sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF))
+ if (monitor_sdata &&
+ (ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) ||
+ ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)))
ieee80211_set_mu_mimo_follow(monitor_sdata, params);
if (params->flags) {
@@ -889,22 +894,25 @@ static int ieee80211_set_monitor_channel
lockdep_assert_wiphy(local->hw.wiphy);
- if (cfg80211_chandef_identical(&local->monitor_chanreq.oper,
- &chanreq.oper))
- return 0;
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
+ if (cfg80211_chandef_identical(&local->monitor_chanreq.oper,
+ &chanreq.oper))
+ return 0;
- sdata = wiphy_dereference(local->hw.wiphy,
- local->monitor_sdata);
- if (!sdata)
- goto done;
+ sdata = wiphy_dereference(wiphy, local->monitor_sdata);
+ if (!sdata)
+ goto done;
+ }
- if (cfg80211_chandef_identical(&sdata->vif.bss_conf.chanreq.oper,
+ if (rcu_access_pointer(sdata->deflink.conf->chanctx_conf) &&
+ cfg80211_chandef_identical(&sdata->vif.bss_conf.chanreq.oper,
&chanreq.oper))
return 0;
ieee80211_link_release_channel(&sdata->deflink);
ret = ieee80211_link_use_channel(&sdata->deflink, &chanreq,
- IEEE80211_CHANCTX_EXCLUSIVE);
+ IEEE80211_CHANCTX_SHARED);
if (ret)
return ret;
done:
@@ -3049,7 +3057,8 @@ static int ieee80211_set_tx_power(struct
if (wdev) {
sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
- if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
+ if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
+ !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF))
return -EOPNOTSUPP;
@@ -3097,7 +3106,8 @@ static int ieee80211_set_tx_power(struct
}
list_for_each_entry(sdata, &local->interfaces, list) {
- if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
+ if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
+ !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
has_monitor = true;
continue;
}
@@ -3107,7 +3117,8 @@ static int ieee80211_set_tx_power(struct
sdata->vif.bss_conf.txpower_type = txp_type;
}
list_for_each_entry(sdata, &local->interfaces, list) {
- if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
+ if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
+ !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
continue;
ieee80211_recalc_txpower(sdata, update_txp_type);
}
@@ -4299,7 +4310,8 @@ static int ieee80211_cfg_get_channel(str
if (chanctx_conf) {
*chandef = link->conf->chanreq.oper;
ret = 0;
- } else if (local->open_count > 0 &&
+ } else if (!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR) &&
+ local->open_count > 0 &&
local->open_count == local->monitors &&
sdata->vif.type == NL80211_IFTYPE_MONITOR) {
*chandef = local->monitor_chanreq.oper;
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -337,6 +337,10 @@ ieee80211_get_chanctx_max_required_bw(st
case NL80211_IFTYPE_P2P_DEVICE:
case NL80211_IFTYPE_NAN:
continue;
+ case NL80211_IFTYPE_MONITOR:
+ WARN_ON_ONCE(!ieee80211_hw_check(&local->hw,
+ NO_VIRTUAL_MONITOR));
+ fallthrough;
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_MESH_POINT:
case NL80211_IFTYPE_OCB:
@@ -345,7 +349,6 @@ ieee80211_get_chanctx_max_required_bw(st
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_UNSPECIFIED:
case NUM_NL80211_IFTYPES:
- case NL80211_IFTYPE_MONITOR:
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
WARN_ON_ONCE(1);
@@ -954,6 +957,10 @@ void ieee80211_recalc_smps_chanctx(struc
if (!link->sdata->u.mgd.associated)
continue;
break;
+ case NL80211_IFTYPE_MONITOR:
+ if (!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
+ continue;
+ break;
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_MESH_POINT:
@@ -966,6 +973,11 @@ void ieee80211_recalc_smps_chanctx(struc
if (rcu_access_pointer(link->conf->chanctx_conf) != &chanctx->conf)
continue;
+ if (link->sdata->vif.type == NL80211_IFTYPE_MONITOR) {
+ rx_chains_dynamic = rx_chains_static = local->rx_chains;
+ break;
+ }
+
switch (link->smps_mode) {
default:
WARN_ONCE(1, "Invalid SMPS mode %d\n",
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -465,6 +465,7 @@ static const char *hw_flag_names[] = {
FLAG(SUPPORTS_DYNAMIC_PS),
FLAG(MFP_CAPABLE),
FLAG(WANT_MONITOR_VIF),
+ FLAG(NO_VIRTUAL_MONITOR),
FLAG(NO_AUTO_VIF),
FLAG(SW_CRYPTO_CONTROL),
FLAG(SUPPORT_FAST_XMIT),
--- a/net/mac80211/driver-ops.c
+++ b/net/mac80211/driver-ops.c
@@ -65,6 +65,7 @@ int drv_add_interface(struct ieee80211_l
if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
(sdata->vif.type == NL80211_IFTYPE_MONITOR &&
!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) &&
+ !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR) &&
!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE))))
return -EINVAL;
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -279,8 +279,13 @@ static int _ieee80211_change_mac(struct
ret = eth_mac_addr(sdata->dev, sa);
if (ret == 0) {
- memcpy(sdata->vif.addr, sa->sa_data, ETH_ALEN);
- ether_addr_copy(sdata->vif.bss_conf.addr, sdata->vif.addr);
+ if (check_dup) {
+ memcpy(sdata->vif.addr, sa->sa_data, ETH_ALEN);
+ ether_addr_copy(sdata->vif.bss_conf.addr, sdata->vif.addr);
+ } else {
+ memset(sdata->vif.addr, 0, ETH_ALEN);
+ memset(sdata->vif.bss_conf.addr, 0, ETH_ALEN);
+ }
}
/* Regardless of eth_mac_addr() return we still want to add the
@@ -699,9 +704,11 @@ static void ieee80211_do_stop(struct iee
ieee80211_recalc_idle(local);
ieee80211_recalc_offload(local);
- if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE))
+ if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) &&
+ !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
break;
+ ieee80211_link_release_channel(&sdata->deflink);
fallthrough;
default:
if (!going_down)
@@ -1131,7 +1138,8 @@ int ieee80211_add_virtual_monitor(struct
ASSERT_RTNL();
lockdep_assert_wiphy(local->hw.wiphy);
- if (local->monitor_sdata)
+ if (local->monitor_sdata ||
+ ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
return 0;
sdata = kzalloc(sizeof(*sdata) + local->hw.vif_data_size, GFP_KERNEL);
@@ -1193,6 +1201,9 @@ void ieee80211_del_virtual_monitor(struc
{
struct ieee80211_sub_if_data *sdata;
+ if (ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
+ return;
+
ASSERT_RTNL();
lockdep_assert_wiphy(local->hw.wiphy);
@@ -1328,7 +1339,8 @@ int ieee80211_do_open(struct wireless_de
break;
}
- if (sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) {
+ if ((sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) ||
+ ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
res = drv_add_interface(local, sdata);
if (res)
goto err_stop;
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -840,6 +840,9 @@ ieee80211_rx_monitor(struct ieee80211_lo
bool last_monitor = list_is_last(&sdata->u.mntr.list,
&local->mon_list);
+ if (ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
+ ieee80211_handle_mu_mimo_mon(sdata, origskb, rtap_space);
+
if (!monskb)
monskb = ieee80211_make_monitor_skb(local, &origskb,
rate, rtap_space,
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1763,7 +1763,8 @@ static bool __ieee80211_tx(struct ieee80
switch (sdata->vif.type) {
case NL80211_IFTYPE_MONITOR:
- if (sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) {
+ if ((sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) ||
+ ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
vif = &sdata->vif;
break;
}
@@ -3952,7 +3953,8 @@ begin:
switch (tx.sdata->vif.type) {
case NL80211_IFTYPE_MONITOR:
- if (tx.sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) {
+ if ((tx.sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) ||
+ ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
vif = &tx.sdata->vif;
break;
}
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -754,7 +754,8 @@ static void __iterate_interfaces(struct
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
switch (sdata->vif.type) {
case NL80211_IFTYPE_MONITOR:
- if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE))
+ if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) &&
+ !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
continue;
break;
case NL80211_IFTYPE_AP_VLAN:
@@ -1857,8 +1858,10 @@ int ieee80211_reconfig(struct ieee80211_
}
list_for_each_entry(sdata, &local->interfaces, list) {
+ if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
+ !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
+ continue;
if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
- sdata->vif.type != NL80211_IFTYPE_MONITOR &&
ieee80211_sdata_running(sdata)) {
res = drv_add_interface(local, sdata);
if (WARN_ON(res))
@@ -1871,11 +1874,14 @@ int ieee80211_reconfig(struct ieee80211_
*/
if (res) {
list_for_each_entry_continue_reverse(sdata, &local->interfaces,
- list)
+ list) {
+ if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
+ !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
+ continue;
if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
- sdata->vif.type != NL80211_IFTYPE_MONITOR &&
ieee80211_sdata_running(sdata))
drv_remove_interface(local, sdata);
+ }
ieee80211_handle_reconfig_failure(local);
return res;
}

56
package/kernel/mac80211/patches/subsys/356-wifi-cfg80211-add-monitor-SKIP_TX-flag.patch Normal file
View File

@@ -0,0 +1,56 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 30 Sep 2024 17:04:09 +0200
Subject: [PATCH] wifi: cfg80211: add monitor SKIP_TX flag
This can be used to indicate that the user is not interested in receiving
locally sent packets on the monitor interface.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2272,6 +2272,7 @@ static inline int cfg80211_get_station(s
* @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
* @MONITOR_FLAG_COOK_FRAMES: report frames after processing
* @MONITOR_FLAG_ACTIVE: active monitor, ACKs frames on its MAC address
+ * @MONITOR_FLAG_SKIP_TX: do not pass locally transmitted frames
*/
enum monitor_flags {
MONITOR_FLAG_CHANGED = BIT(__NL80211_MNTR_FLAG_INVALID),
@@ -2281,6 +2282,7 @@ enum monitor_flags {
MONITOR_FLAG_OTHER_BSS = BIT(NL80211_MNTR_FLAG_OTHER_BSS),
MONITOR_FLAG_COOK_FRAMES = BIT(NL80211_MNTR_FLAG_COOK_FRAMES),
MONITOR_FLAG_ACTIVE = BIT(NL80211_MNTR_FLAG_ACTIVE),
+ MONITOR_FLAG_SKIP_TX = BIT(NL80211_MNTR_FLAG_SKIP_TX),
};
/**
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -4703,6 +4703,7 @@ enum nl80211_survey_info {
* overrides all other flags.
* @NL80211_MNTR_FLAG_ACTIVE: use the configured MAC address
* and ACK incoming unicast packets.
+ * @NL80211_MNTR_FLAG_SKIP_TX: do not pass local tx packets
*
* @__NL80211_MNTR_FLAG_AFTER_LAST: internal use
* @NL80211_MNTR_FLAG_MAX: highest possible monitor flag
@@ -4715,6 +4716,7 @@ enum nl80211_mntr_flags {
NL80211_MNTR_FLAG_OTHER_BSS,
NL80211_MNTR_FLAG_COOK_FRAMES,
NL80211_MNTR_FLAG_ACTIVE,
+ NL80211_MNTR_FLAG_SKIP_TX,
/* keep last */
__NL80211_MNTR_FLAG_AFTER_LAST,
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -4201,6 +4201,7 @@ static const struct nla_policy mntr_flag
[NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
[NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
[NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
+ [NL80211_MNTR_FLAG_SKIP_TX] = { .type = NLA_FLAG },
};
static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)

54
package/kernel/mac80211/patches/subsys/357-wifi-mac80211-add-support-for-the-monitor-SKIP_TX-fl.patch Normal file
View File

@@ -0,0 +1,54 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 30 Sep 2024 17:05:18 +0200
Subject: [PATCH] wifi: mac80211: add support for the monitor SKIP_TX flag
Do not pass locally sent packets to monitor interfaces with this flag set.
Skip processing tx packets on the status call entirely if no monitor
interfaces without this flag are present.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1374,7 +1374,7 @@ struct ieee80211_local {
spinlock_t queue_stop_reason_lock;
int open_count;
- int monitors, cooked_mntrs;
+ int monitors, cooked_mntrs, tx_mntrs;
/* number of interfaces with corresponding FIF_ flags */
int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
fif_probe_req;
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1094,6 +1094,8 @@ void ieee80211_adjust_monitor_flags(stru
ADJUST(CONTROL, control);
ADJUST(CONTROL, pspoll);
ADJUST(OTHER_BSS, other_bss);
+ if (!(flags & MONITOR_FLAG_SKIP_TX))
+ local->tx_mntrs += offset;
#undef ADJUST
}
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -927,6 +927,9 @@ void ieee80211_tx_monitor(struct ieee802
if (!ieee80211_sdata_running(sdata))
continue;
+ if (sdata->u.mntr.flags & MONITOR_FLAG_SKIP_TX)
+ continue;
+
if ((sdata->u.mntr.flags & MONITOR_FLAG_COOK_FRAMES) &&
!send_to_cooked)
continue;
@@ -1099,7 +1102,7 @@ static void __ieee80211_tx_status(struct
* This is a bit racy but we can avoid a lot of work
* with this test...
*/
- if (!local->monitors && (!send_to_cooked || !local->cooked_mntrs)) {
+ if (!local->tx_mntrs && (!send_to_cooked || !local->cooked_mntrs)) {
if (status->free_list)
list_add_tail(&skb->list, status->free_list);
else

94
package/kernel/mac80211/patches/subsys/358-wifi-mac80211-refactor-ieee80211_rx_monitor.patch Normal file
View File

@@ -0,0 +1,94 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 2 Oct 2024 12:31:22 +0200
Subject: [PATCH] wifi: mac80211: refactor ieee80211_rx_monitor
Rework the monitor mode interface iteration to get rid of the last_monitor
condition. Preparation for further filtering received monitor packets.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -762,8 +762,8 @@ ieee80211_rx_monitor(struct ieee80211_lo
struct ieee80211_rate *rate)
{
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(origskb);
- struct ieee80211_sub_if_data *sdata;
- struct sk_buff *monskb = NULL;
+ struct ieee80211_sub_if_data *sdata, *prev_sdata = NULL;
+ struct sk_buff *skb, *monskb = NULL;
int present_fcs_len = 0;
unsigned int rtap_space = 0;
struct ieee80211_sub_if_data *monitor_sdata =
@@ -837,8 +837,10 @@ ieee80211_rx_monitor(struct ieee80211_lo
ieee80211_handle_mu_mimo_mon(monitor_sdata, origskb, rtap_space);
list_for_each_entry_rcu(sdata, &local->mon_list, u.mntr.list) {
- bool last_monitor = list_is_last(&sdata->u.mntr.list,
- &local->mon_list);
+ if (!prev_sdata) {
+ prev_sdata = sdata;
+ continue;
+ }
if (ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
ieee80211_handle_mu_mimo_mon(sdata, origskb, rtap_space);
@@ -846,34 +848,34 @@ ieee80211_rx_monitor(struct ieee80211_lo
if (!monskb)
monskb = ieee80211_make_monitor_skb(local, &origskb,
rate, rtap_space,
- only_monitor &&
- last_monitor);
-
- if (monskb) {
- struct sk_buff *skb;
+ false);
+ if (!monskb)
+ continue;
- if (last_monitor) {
- skb = monskb;
- monskb = NULL;
- } else {
- skb = skb_clone(monskb, GFP_ATOMIC);
- }
+ skb = skb_clone(monskb, GFP_ATOMIC);
+ if (!skb)
+ continue;
+
+ skb->dev = prev_sdata->dev;
+ dev_sw_netstats_rx_add(skb->dev, skb->len);
+ netif_receive_skb(skb);
+ prev_sdata = sdata;
+ }
- if (skb) {
- skb->dev = sdata->dev;
- dev_sw_netstats_rx_add(skb->dev, skb->len);
- netif_receive_skb(skb);
- }
+ if (prev_sdata) {
+ if (monskb)
+ skb = monskb;
+ else
+ skb = ieee80211_make_monitor_skb(local, &origskb,
+ rate, rtap_space,
+ only_monitor);
+ if (skb) {
+ skb->dev = prev_sdata->dev;
+ dev_sw_netstats_rx_add(skb->dev, skb->len);
+ netif_receive_skb(skb);
}
-
- if (last_monitor)
- break;
}
- /* this happens if last_monitor was erroneously false */
- dev_kfree_skb(monskb);
-
- /* ditto */
if (!origskb)
return NULL;

29
package/kernel/mac80211/patches/subsys/359-wifi-mac80211-filter-on-monitor-interfaces-based-on-.patch Normal file
View File

@@ -0,0 +1,29 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 2 Oct 2024 12:35:13 +0200
Subject: [PATCH] wifi: mac80211: filter on monitor interfaces based on
configured channel
When a monitor interface has an assigned channel (only happens with the
NO_VIRTUAL_MONITOR feature), only pass packets received on that channel.
This is useful for monitoring on multiple channels at the same time using
multiple monitor interfaces.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -837,6 +837,13 @@ ieee80211_rx_monitor(struct ieee80211_lo
ieee80211_handle_mu_mimo_mon(monitor_sdata, origskb, rtap_space);
list_for_each_entry_rcu(sdata, &local->mon_list, u.mntr.list) {
+ struct cfg80211_chan_def *chandef;
+
+ chandef = &sdata->vif.bss_conf.chanreq.oper;
+ if (chandef->chan &&
+ chandef->chan->center_freq != status->freq)
+ continue;
+
if (!prev_sdata) {
prev_sdata = sdata;
continue;

64
package/kernel/mac80211/patches/subsys/360-wifi-cfg80211-report-per-wiphy-radio-antenna-mask.patch Normal file
View File

@@ -0,0 +1,64 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 7 Aug 2024 13:31:07 +0200
Subject: [PATCH] wifi: cfg80211: report per wiphy radio antenna mask
With multi-radio devices, each radio typically gets a fixed set of antennas.
In order to be able to disable specific antennas for some radios, user space
needs to know which antenna mask bits are assigned to which radio.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -5443,6 +5443,8 @@ struct wiphy_radio_freq_range {
* @iface_combinations: Valid interface combinations array, should not
* list single interface types.
* @n_iface_combinations: number of entries in @iface_combinations array.
+ *
+ * @antenna_mask: bitmask of antennas connected to this radio.
*/
struct wiphy_radio {
const struct wiphy_radio_freq_range *freq_range;
@@ -5450,6 +5452,8 @@ struct wiphy_radio {
const struct ieee80211_iface_combination *iface_combinations;
int n_iface_combinations;
+
+ u32 antenna_mask;
};
#define CFG80211_HW_TIMESTAMP_ALL_PEERS 0xffff
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -8038,6 +8038,8 @@ enum nl80211_ap_settings_flags {
* @NL80211_WIPHY_RADIO_ATTR_INTERFACE_COMBINATION: Supported interface
* combination for this radio. Attribute may be present multiple times
* 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_LAST: Internal
* @NL80211_WIPHY_RADIO_ATTR_MAX: Highest attribute
@@ -8048,6 +8050,7 @@ enum nl80211_wiphy_radio_attrs {
NL80211_WIPHY_RADIO_ATTR_INDEX,
NL80211_WIPHY_RADIO_ATTR_FREQ_RANGE,
NL80211_WIPHY_RADIO_ATTR_INTERFACE_COMBINATION,
+ NL80211_WIPHY_RADIO_ATTR_ANTENNA_MASK,
/* keep last */
__NL80211_WIPHY_RADIO_ATTR_LAST,
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2431,6 +2431,11 @@ static int nl80211_put_radio(struct wiph
if (nla_put_u32(msg, NL80211_WIPHY_RADIO_ATTR_INDEX, idx))
goto nla_put_failure;
+ if (r->antenna_mask &&
+ nla_put_u32(msg, NL80211_WIPHY_RADIO_ATTR_ANTENNA_MASK,
+ r->antenna_mask))
+ goto nla_put_failure;
+
for (i = 0; i < r->n_freq_range; i++) {
const struct wiphy_radio_freq_range *range = &r->freq_range[i];

63
package/kernel/mac80211/patches/subsys/361-wifi-mac80211-fix-vif-addr-when-switching-from-monit.patch Normal file
View File

@@ -0,0 +1,63 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 15 Nov 2024 12:28:43 +0100
Subject: [PATCH] wifi: mac80211: fix vif addr when switching from monitor
to station
Since adding support for opting out of virtual monitor support, a zero vif
addr was used to indicate passive vs active monitor to the driver.
This would break the vif->addr when changing the netdev mac address before
switching the interface from monitor to sta mode.
Fix the regression by adding a separate flag to indicate whether vif->addr
is valid.
Reported-by: syzbot+9ea265d998de25ac6a46@syzkaller.appspotmail.com
Fixes: 9d40f7e32774 ("wifi: mac80211: add flag to opt out of virtual monitor support")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1972,6 +1972,8 @@ enum ieee80211_neg_ttlm_res {
* @neg_ttlm: negotiated TID to link mapping info.
* see &struct ieee80211_neg_ttlm.
* @addr: address of this interface
+ * @addr_valid: indicates if the address is actively used. Set to false for
+ * passive monitor interfaces, true in all other cases.
* @p2p: indicates whether this AP or STA interface is a p2p
* interface, i.e. a GO or p2p-sta respectively
* @netdev_features: tx netdev features supported by the hardware for this
@@ -2011,6 +2013,7 @@ struct ieee80211_vif {
u16 valid_links, active_links, dormant_links, suspended_links;
struct ieee80211_neg_ttlm neg_ttlm;
u8 addr[ETH_ALEN] __aligned(2);
+ bool addr_valid;
bool p2p;
u8 cab_queue;
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -279,13 +279,8 @@ static int _ieee80211_change_mac(struct
ret = eth_mac_addr(sdata->dev, sa);
if (ret == 0) {
- if (check_dup) {
- memcpy(sdata->vif.addr, sa->sa_data, ETH_ALEN);
- ether_addr_copy(sdata->vif.bss_conf.addr, sdata->vif.addr);
- } else {
- memset(sdata->vif.addr, 0, ETH_ALEN);
- memset(sdata->vif.bss_conf.addr, 0, ETH_ALEN);
- }
+ memcpy(sdata->vif.addr, sa->sa_data, ETH_ALEN);
+ ether_addr_copy(sdata->vif.bss_conf.addr, sdata->vif.addr);
}
/* Regardless of eth_mac_addr() return we still want to add the
@@ -1324,6 +1319,8 @@ int ieee80211_do_open(struct wireless_de
}
}
+ sdata->vif.addr_valid = sdata->vif.type != NL80211_IFTYPE_MONITOR ||
+ (sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE);
switch (sdata->vif.type) {
case NL80211_IFTYPE_AP_VLAN:
/* no need to tell driver, but set carrier and chanctx */

32
package/kernel/mac80211/patches/subsys/362-wifi-mac80211-fix-incorrect-timing-to-initialize-sta.patch Normal file
View File

@@ -0,0 +1,32 @@
From: Benjamin Lin <benjamin-jw.lin@mediatek.com>
Date: Mon, 18 Nov 2024 16:07:22 +0800
Subject: [PATCH] wifi: mac80211: fix incorrect timing to initialize
station NSS capability
Station's spatial streaming capability should be initialized before
handling VHT OMN, because the handling requires the capability information.
Fixes: a8bca3e9371d ("wifi: mac80211: track capability/opmode NSS separately")
Signed-off-by: Benjamin Lin <benjamin-jw.lin@mediatek.com>
---
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1914,6 +1914,8 @@ static int sta_link_apply_parameters(str
params->eht_capa_len,
link_sta);
+ ieee80211_sta_init_nss(link_sta);
+
if (params->opmode_notif_used) {
/* returned value is only needed for rc update, but the
* rc isn't initialized here yet, so ignore it
@@ -1923,8 +1925,6 @@ static int sta_link_apply_parameters(str
sband->band);
}
- ieee80211_sta_init_nss(link_sta);
-
return 0;
}

53
package/kernel/mac80211/patches/subsys/363-wifi-mac80211-ieee80211_i-Fix-memory-corruption-bug-.patch Normal file
View File

@@ -0,0 +1,53 @@
From: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Date: Fri, 25 Oct 2024 16:05:50 -0600
Subject: [PATCH] wifi: mac80211: ieee80211_i: Fix memory corruption bug in
struct ieee80211_chanctx
Move the `struct ieee80211_chanctx_conf conf` to the end of
`struct ieee80211_chanctx` and fix a memory corruption bug
triggered e.g. in `hwsim_set_chanctx_magic()`: `radar_detected`
is being overwritten when `cp->magic = HWSIM_CHANCTX_MAGIC;`
See the function call sequence below:
drv_add_chanctx(... struct ieee80211_chanctx *ctx) ->
local->ops->add_chanctx(&local->hw, &ctx->conf) ->
mac80211_hwsim_add_chanctx(... struct ieee80211_chanctx_conf *ctx) ->
hwsim_set_chanctx_magic(ctx)
This also happens in a number of other drivers.
Also, add a code comment to try to prevent people from introducing
new members after `struct ieee80211_chanctx_conf conf`. Notice that
`struct ieee80211_chanctx_conf` is a flexible structure --a structure
that contains a flexible-array member, so it should always be at
the end of any other containing structures.
This change also fixes 50 of the following warnings:
net/mac80211/ieee80211_i.h:895:39: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.
Fixes: bca8bc0399ac ("wifi: mac80211: handle ieee80211_radar_detected() for MLO")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://patch.msgid.link/ZxwWPrncTeSi1UTq@kspp
[also refer to other drivers in commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -894,9 +894,10 @@ struct ieee80211_chanctx {
/* temporary data for search algorithm etc. */
struct ieee80211_chan_req req;
- struct ieee80211_chanctx_conf conf;
-
bool radar_detected;
+
+ /* MUST be last - ends in a flexible-array member. */
+ struct ieee80211_chanctx_conf conf;
};
struct mac80211_qos_map {

24
package/kernel/mac80211/patches/subsys/364-mac80211-fix-user-power-when-emulating-chanctx.patch Normal file
View File

@@ -0,0 +1,24 @@
From: Ben Greear <greearb@candelatech.com>
Date: Thu, 10 Oct 2024 13:39:54 -0700
Subject: [PATCH] mac80211: fix user-power when emulating chanctx
ieee80211_calc_hw_conf_chan was ignoring the configured
user_txpower. If it is set, use it to potentially decrease
txpower as requested.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Link: https://patch.msgid.link/20241010203954.1219686-1-greearb@candelatech.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -167,6 +167,8 @@ static u32 ieee80211_calc_hw_conf_chan(s
}
power = ieee80211_chandef_max_power(&chandef);
+ if (local->user_power_level != IEEE80211_UNSET_POWER_LEVEL)
+ power = min(local->user_power_level, power);
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list) {

83
package/kernel/mac80211/patches/subsys/365-wifi-cfg80211-Add-wiphy_delayed_work_pending.patch Normal file
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@@ -0,0 +1,83 @@
From: Remi Pommarel <repk@triplefau.lt>
Date: Tue, 24 Sep 2024 21:28:04 +0200
Subject: [PATCH] wifi: cfg80211: Add wiphy_delayed_work_pending()
Add wiphy_delayed_work_pending() to check if any delayed work timer is
pending, that can be used to be sure that wiphy_delayed_work_queue()
won't postpone an already pending delayed work.
Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Link: https://patch.msgid.link/20240924192805.13859-2-repk@triplefau.lt
[fix return value kernel-doc]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -6141,6 +6141,50 @@ void wiphy_delayed_work_flush(struct wip
struct wiphy_delayed_work *dwork);
/**
+ * wiphy_delayed_work_pending - Find out whether a wiphy delayable
+ * work item is currently pending.
+ *
+ * @wiphy: the wiphy, for debug purposes
+ * @dwork: the delayed work in question
+ *
+ * Return: true if timer is pending, false otherwise
+ *
+ * How wiphy_delayed_work_queue() works is by setting a timer which
+ * when it expires calls wiphy_work_queue() to queue the wiphy work.
+ * Because wiphy_delayed_work_queue() uses mod_timer(), if it is
+ * called twice and the second call happens before the first call
+ * deadline, the work will rescheduled for the second deadline and
+ * won't run before that.
+ *
+ * wiphy_delayed_work_pending() can be used to detect if calling
+ * wiphy_work_delayed_work_queue() would start a new work schedule
+ * or delayed a previous one. As seen below it cannot be used to
+ * detect precisely if the work has finished to execute nor if it
+ * is currently executing.
+ *
+ * CPU0 CPU1
+ * wiphy_delayed_work_queue(wk)
+ * mod_timer(wk->timer)
+ * wiphy_delayed_work_pending(wk) -> true
+ *
+ * [...]
+ * expire_timers(wk->timer)
+ * detach_timer(wk->timer)
+ * wiphy_delayed_work_pending(wk) -> false
+ * wk->timer->function() |
+ * wiphy_work_queue(wk) | delayed work pending
+ * list_add_tail() | returns false but
+ * queue_work(cfg80211_wiphy_work) | wk->func() has not
+ * | been run yet
+ * [...] |
+ * cfg80211_wiphy_work() |
+ * wk->func() V
+ *
+ */
+bool wiphy_delayed_work_pending(struct wiphy *wiphy,
+ struct wiphy_delayed_work *dwork);
+
+/**
* enum ieee80211_ap_reg_power - regulatory power for an Access Point
*
* @IEEE80211_REG_UNSET_AP: Access Point has no regulatory power mode
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -1735,6 +1735,13 @@ void wiphy_delayed_work_flush(struct wip
}
EXPORT_SYMBOL_GPL(wiphy_delayed_work_flush);
+bool wiphy_delayed_work_pending(struct wiphy *wiphy,
+ struct wiphy_delayed_work *dwork)
+{
+ return timer_pending(&dwork->timer);
+}
+EXPORT_SYMBOL_GPL(wiphy_delayed_work_pending);
+
static int __init cfg80211_init(void)
{
int err;

148
package/kernel/mac80211/patches/subsys/366-wifi-mac80211-Convert-color-collision-detection-to-w.patch Normal file
View File

@@ -0,0 +1,148 @@
From: Remi Pommarel <repk@triplefau.lt>
Date: Tue, 24 Sep 2024 21:28:05 +0200
Subject: [PATCH] wifi: mac80211: Convert color collision detection to wiphy
work
Call to ieee80211_color_collision_detection_work() needs wiphy lock to
be held (see lockdep assert in cfg80211_bss_color_notify()). Not locking
wiphy causes the following lockdep error:
WARNING: CPU: 2 PID: 42 at net/wireless/nl80211.c:19505 cfg80211_bss_color_notify+0x1a4/0x25c
Modules linked in:
CPU: 2 PID: 42 Comm: kworker/u8:3 Tainted: G W 6.4.0-02327-g36c6cb260481 #1048
Hardware name:
Workqueue: phy1 ieee80211_color_collision_detection_work
pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : cfg80211_bss_color_notify+0x1a4/0x25c
lr : cfg80211_bss_color_notify+0x1a0/0x25c
sp : ffff000002947d00
x29: ffff000002947d00 x28: ffff800008e1a000 x27: ffff000002bd4705
x26: ffff00000d034000 x25: ffff80000903cf40 x24: 0000000000000000
x23: ffff00000cb70720 x22: 0000000000800000 x21: ffff800008dfb008
x20: 000000000000008d x19: ffff00000d035fa8 x18: 0000000000000010
x17: 0000000000000001 x16: 000003564b1ce96a x15: 000d69696d057970
x14: 000000000000003b x13: 0000000000000001 x12: 0000000000040000
x11: 0000000000000001 x10: ffff80000978f9c0 x9 : ffff0000028d3174
x8 : ffff800008e30000 x7 : 0000000000000000 x6 : 0000000000000028
x5 : 000000000002f498 x4 : ffff00000d034a80 x3 : 0000000000800000
x2 : ffff800016143000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
cfg80211_bss_color_notify+0x1a4/0x25c
ieee80211_color_collision_detection_work+0x20/0x118
process_one_work+0x294/0x554
worker_thread+0x70/0x440
kthread+0xf4/0xf8
ret_from_fork+0x10/0x20
irq event stamp: 77372
hardirqs last enabled at (77371): [<ffff800008a346fc>] _raw_spin_unlock_irq+0x2c/0x4c
hardirqs last disabled at (77372): [<ffff800008a28754>] el1_dbg+0x20/0x48
softirqs last enabled at (77350): [<ffff8000089e120c>] batadv_send_outstanding_bcast_packet+0xb8/0x120
softirqs last disabled at (77348): [<ffff8000089e11d4>] batadv_send_outstanding_bcast_packet+0x80/0x120
The wiphy lock cannot be taken directly from color collision detection
delayed work (ieee80211_color_collision_detection_work()) because this
work is cancel_delayed_work_sync() under this wiphy lock causing a
potential deadlock( see [0] for details).
To fix that ieee80211_color_collision_detection_work() could be
converted to a wiphy work and cancel_delayed_work_sync() can be simply
replaced by wiphy_delayed_work_cancel() serving the same purpose under
wiphy lock.
This could potentially fix [1].
[0]: https://lore.kernel.org/linux-wireless/D4A40Q44OAY2.W3SIF6UEPBUN@freebox.fr/
[1]: https://lore.kernel.org/lkml/000000000000612f290618eee3e5@google.com/
Reported-by: Nicolas Escande <nescande@freebox.fr>
Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Link: https://patch.msgid.link/20240924192805.13859-3-repk@triplefau.lt
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -4836,12 +4836,12 @@ void ieee80211_color_change_finalize_wor
ieee80211_color_change_finalize(link);
}
-void ieee80211_color_collision_detection_work(struct work_struct *work)
+void ieee80211_color_collision_detection_work(struct wiphy *wiphy,
+ struct wiphy_work *work)
{
- struct delayed_work *delayed_work = to_delayed_work(work);
struct ieee80211_link_data *link =
- container_of(delayed_work, struct ieee80211_link_data,
- color_collision_detect_work);
+ container_of(work, struct ieee80211_link_data,
+ color_collision_detect_work.work);
struct ieee80211_sub_if_data *sdata = link->sdata;
cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap,
@@ -4894,7 +4894,8 @@ ieee80211_obss_color_collision_notify(st
return;
}
- if (delayed_work_pending(&link->color_collision_detect_work)) {
+ if (wiphy_delayed_work_pending(sdata->local->hw.wiphy,
+ &link->color_collision_detect_work)) {
rcu_read_unlock();
return;
}
@@ -4903,9 +4904,9 @@ ieee80211_obss_color_collision_notify(st
/* queue the color collision detection event every 500 ms in order to
* avoid sending too much netlink messages to userspace.
*/
- ieee80211_queue_delayed_work(&sdata->local->hw,
- &link->color_collision_detect_work,
- msecs_to_jiffies(500));
+ wiphy_delayed_work_queue(sdata->local->hw.wiphy,
+ &link->color_collision_detect_work,
+ msecs_to_jiffies(500));
rcu_read_unlock();
}
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1056,7 +1056,7 @@ struct ieee80211_link_data {
} csa;
struct wiphy_work color_change_finalize_work;
- struct delayed_work color_collision_detect_work;
+ struct wiphy_delayed_work color_collision_detect_work;
u64 color_bitmap;
/* context reservation -- protected with wiphy mutex */
@@ -2010,7 +2010,8 @@ int ieee80211_channel_switch(struct wiph
/* color change handling */
void ieee80211_color_change_finalize_work(struct wiphy *wiphy,
struct wiphy_work *work);
-void ieee80211_color_collision_detection_work(struct work_struct *work);
+void ieee80211_color_collision_detection_work(struct wiphy *wiphy,
+ struct wiphy_work *work);
/* interface handling */
#define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
--- a/net/mac80211/link.c
+++ b/net/mac80211/link.c
@@ -41,8 +41,8 @@ void ieee80211_link_init(struct ieee8021
ieee80211_csa_finalize_work);
wiphy_work_init(&link->color_change_finalize_work,
ieee80211_color_change_finalize_work);
- INIT_DELAYED_WORK(&link->color_collision_detect_work,
- ieee80211_color_collision_detection_work);
+ wiphy_delayed_work_init(&link->color_collision_detect_work,
+ ieee80211_color_collision_detection_work);
INIT_LIST_HEAD(&link->assigned_chanctx_list);
INIT_LIST_HEAD(&link->reserved_chanctx_list);
wiphy_delayed_work_init(&link->dfs_cac_timer_work,
@@ -72,7 +72,8 @@ void ieee80211_link_stop(struct ieee8021
if (link->sdata->vif.type == NL80211_IFTYPE_STATION)
ieee80211_mgd_stop_link(link);
- cancel_delayed_work_sync(&link->color_collision_detect_work);
+ wiphy_delayed_work_cancel(link->sdata->local->hw.wiphy,
+ &link->color_collision_detect_work);
wiphy_work_cancel(link->sdata->local->hw.wiphy,
&link->color_change_finalize_work);
wiphy_work_cancel(link->sdata->local->hw.wiphy,