Currently, function to update beacon counter uses deflink to fetch
the beacon and then update the counter. However, with MLO, there is
a need to update the counter for the beacon in a particular link.
Add support to use link_id in order to fetch the beacon from a particular
link data during beacon update counter.
Signed-off-by: Aditya Kumar Singh <[email protected]>
---
drivers/net/wireless/ath/ath10k/mac.c | 2 +-
drivers/net/wireless/ath/ath11k/mac.c | 2 +-
drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c | 2 +-
include/net/mac80211.h | 4 +++-
net/mac80211/tx.c | 14 +++++++++++---
5 files changed, 17 insertions(+), 7 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 07c5c51ff7b2..8847cfc6030e 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2035,7 +2035,7 @@ static void ath10k_mac_vif_ap_csa_count_down(struct ath10k_vif *arvif)
return;
if (!ieee80211_beacon_cntdwn_is_complete(vif)) {
- ieee80211_beacon_update_cntdwn(vif);
+ ieee80211_beacon_update_cntdwn(vif, 0);
ret = ath10k_mac_setup_bcn_tmpl(arvif);
if (ret)
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index db241589424d..74e114140343 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -1589,7 +1589,7 @@ void ath11k_mac_bcn_tx_event(struct ath11k_vif *arvif)
arvif->bcca_zero_sent = false;
if (vif->bss_conf.color_change_active)
- ieee80211_beacon_update_cntdwn(vif);
+ ieee80211_beacon_update_cntdwn(vif, 0);
ath11k_mac_setup_bcn_tmpl(arvif);
}
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
index 3b6819f75430..57a94ffb12d7 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
@@ -1467,7 +1467,7 @@ static void iwl_mvm_csa_count_down(struct iwl_mvm *mvm,
mvmvif->csa_countdown = true;
if (!ieee80211_beacon_cntdwn_is_complete(csa_vif)) {
- int c = ieee80211_beacon_update_cntdwn(csa_vif);
+ int c = ieee80211_beacon_update_cntdwn(csa_vif, 0);
iwl_mvm_mac_ctxt_beacon_changed(mvm, csa_vif,
&csa_vif->bss_conf);
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 850053ed2366..d8e2b5efbba9 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -5455,6 +5455,7 @@ static inline struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
/**
* ieee80211_beacon_update_cntdwn - request mac80211 to decrement the beacon countdown
* @vif: &struct ieee80211_vif pointer from the add_interface callback.
+ * @link_id: valid link_id during MLO or 0 for non-MLO
*
* The beacon counter should be updated after each beacon transmission.
* This function is called implicitly when
@@ -5464,7 +5465,8 @@ static inline struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
*
* Return: new countdown value
*/
-u8 ieee80211_beacon_update_cntdwn(struct ieee80211_vif *vif);
+u8 ieee80211_beacon_update_cntdwn(struct ieee80211_vif *vif,
+ unsigned int link_id);
/**
* ieee80211_beacon_set_cntdwn - request mac80211 to set beacon countdown
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 314998fdb1a5..aab3fd9895fe 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -5030,16 +5030,24 @@ static u8 __ieee80211_beacon_update_cntdwn(struct beacon_data *beacon)
return beacon->cntdwn_current_counter;
}
-u8 ieee80211_beacon_update_cntdwn(struct ieee80211_vif *vif)
+u8 ieee80211_beacon_update_cntdwn(struct ieee80211_vif *vif, unsigned int link_id)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_link_data *link;
struct beacon_data *beacon = NULL;
u8 count = 0;
+ if (WARN_ON(link_id > IEEE80211_MLD_MAX_NUM_LINKS))
+ return 0;
+
rcu_read_lock();
+ link = rcu_dereference(sdata->link[link_id]);
+ if (!link)
+ goto unlock;
+
if (sdata->vif.type == NL80211_IFTYPE_AP)
- beacon = rcu_dereference(sdata->deflink.u.ap.beacon);
+ beacon = rcu_dereference(link->u.ap.beacon);
else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
beacon = rcu_dereference(sdata->u.ibss.presp);
else if (ieee80211_vif_is_mesh(&sdata->vif))
@@ -5280,7 +5288,7 @@ ieee80211_beacon_get_ap(struct ieee80211_hw *hw,
if (beacon->cntdwn_counter_offsets[0]) {
if (!is_template)
- ieee80211_beacon_update_cntdwn(vif);
+ ieee80211_beacon_update_cntdwn(vif, link->link_id);
ieee80211_set_beacon_cntdwn(sdata, beacon, link);
}
--
2.25.1
On Thu, 2024-01-25 at 18:34 +0530, Aditya Kumar Singh wrote:
> Currently, function to update beacon counter uses deflink to fetch
> the beacon and then update the counter. However, with MLO, there is
> a need to update the counter for the beacon in a particular link.
>
> Add support to use link_id in order to fetch the beacon from a particular
> link data during beacon update counter.
>
Seems it would make sense to put this patch _before_ patch 2, since
otherwise in patch 2 it would appear to be kind of working but then not
really work?
johannes
On 1/26/24 15:01, Johannes Berg wrote:
> On Thu, 2024-01-25 at 18:34 +0530, Aditya Kumar Singh wrote:
>> Currently, function to update beacon counter uses deflink to fetch
>> the beacon and then update the counter. However, with MLO, there is
>> a need to update the counter for the beacon in a particular link.
>>
>> Add support to use link_id in order to fetch the beacon from a particular
>> link data during beacon update counter.
>>
>
> Seems it would make sense to put this patch _before_ patch 2, since
> otherwise in patch 2 it would appear to be kind of working but then not
> really work?
>
You are right! I will move this to before [2] then followed by
csa_finish() changes and then last patch would be to start csa process
on given link. Looks fine?