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-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c19
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c47
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c19
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/mvm.h2
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/scan.c7
5 files changed, 57 insertions, 37 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index e321d41d1a..0573581791 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -1547,6 +1547,17 @@ static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm,
IWL_STA_MULTICAST);
}
+void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif)
+{
+ lockdep_assert_held(&mvm->mutex);
+
+ if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
+ return;
+
+ INIT_DELAYED_WORK(&mvmvif->csa_work,
+ iwl_mvm_channel_switch_disconnect_wk);
+}
+
static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
@@ -1557,6 +1568,8 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
mutex_lock(&mvm->mutex);
+ iwl_mvm_mac_init_mvmvif(mvm, mvmvif);
+
mvmvif->mvm = mvm;
/* the first link always points to the default one */
@@ -1632,8 +1645,6 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
mvm->p2p_device_vif = vif;
iwl_mvm_tcm_add_vif(mvm, vif);
- INIT_DELAYED_WORK(&mvmvif->csa_work,
- iwl_mvm_channel_switch_disconnect_wk);
if (vif->type == NL80211_IFTYPE_MONITOR) {
mvm->monitor_on = true;
@@ -1671,6 +1682,8 @@ out:
void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
struct ieee80211_vif *vif)
{
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+
if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
/*
* Flush the ROC worker which will flush the OFFCHANNEL queue.
@@ -1679,6 +1692,8 @@ void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
*/
flush_work(&mvm->roc_done_wk);
}
+
+ cancel_delayed_work_sync(&mvmvif->csa_work);
}
/* This function is doing the common part of removing the interface for
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c
index 893b69fc84..1b39c9ea55 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c
@@ -14,6 +14,8 @@ static int iwl_mvm_mld_mac_add_interface(struct ieee80211_hw *hw,
mutex_lock(&mvm->mutex);
+ iwl_mvm_mac_init_mvmvif(mvm, mvmvif);
+
mvmvif->mvm = mvm;
/* Not much to do here. The stack will not allow interface
@@ -189,17 +191,13 @@ static void iwl_mvm_mld_mac_remove_interface(struct ieee80211_hw *hw,
mutex_unlock(&mvm->mutex);
}
-static unsigned int iwl_mvm_mld_count_active_links(struct ieee80211_vif *vif)
+static unsigned int iwl_mvm_mld_count_active_links(struct iwl_mvm_vif *mvmvif)
{
unsigned int n_active = 0;
int i;
for (i = 0; i < IEEE80211_MLD_MAX_NUM_LINKS; i++) {
- struct ieee80211_bss_conf *link_conf;
-
- link_conf = link_conf_dereference_protected(vif, i);
- if (link_conf &&
- rcu_access_pointer(link_conf->chanctx_conf))
+ if (mvmvif->link[i] && mvmvif->link[i]->phy_ctxt)
n_active++;
}
@@ -245,21 +243,18 @@ __iwl_mvm_mld_assign_vif_chanctx(struct iwl_mvm *mvm,
{
u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
- unsigned int n_active = iwl_mvm_mld_count_active_links(vif);
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ unsigned int n_active = iwl_mvm_mld_count_active_links(mvmvif);
unsigned int link_id = link_conf->link_id;
int ret;
- /* if the assigned one was not counted yet, count it now */
- if (!rcu_access_pointer(link_conf->chanctx_conf))
- n_active++;
-
- if (n_active > iwl_mvm_max_active_links(mvm, vif))
- return -EOPNOTSUPP;
-
if (WARN_ON_ONCE(!mvmvif->link[link_id]))
return -EINVAL;
+ /* if the assigned one was not counted yet, count it now */
+ if (!mvmvif->link[link_id]->phy_ctxt)
+ n_active++;
+
/* mac parameters such as HE support can change at this stage
* For sta, need first to configure correct state from drv_sta_state
* and only after that update mac config.
@@ -299,13 +294,8 @@ __iwl_mvm_mld_assign_vif_chanctx(struct iwl_mvm *mvm,
* this needs the phy context assigned (and in FW?), and we cannot
* do it later because it needs to be initialized as soon as we're
* able to TX on the link, i.e. when active.
- *
- * Firmware restart isn't quite correct yet for MLO, but we don't
- * need to do it in that case anyway since it will happen from the
- * normal station state callback.
*/
- if (mvmvif->ap_sta &&
- !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
+ if (mvmvif->ap_sta) {
struct ieee80211_link_sta *link_sta;
rcu_read_lock();
@@ -419,7 +409,7 @@ __iwl_mvm_mld_unassign_vif_chanctx(struct iwl_mvm *mvm,
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
- unsigned int n_active = iwl_mvm_mld_count_active_links(vif);
+ unsigned int n_active = iwl_mvm_mld_count_active_links(mvmvif);
unsigned int link_id = link_conf->link_id;
/* shouldn't happen, but verify link_id is valid before accessing */
@@ -1122,17 +1112,12 @@ iwl_mvm_mld_change_vif_links(struct ieee80211_hw *hw,
struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS])
{
struct iwl_mvm_vif_link_info *new_link[IEEE80211_MLD_MAX_NUM_LINKS] = {};
- unsigned int n_active = iwl_mvm_mld_count_active_links(vif);
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
u16 removed = old_links & ~new_links;
u16 added = new_links & ~old_links;
int err, i;
- if (hweight16(new_links) > 1 &&
- n_active > iwl_mvm_max_active_links(mvm, vif))
- return -EOPNOTSUPP;
-
for (i = 0; i < IEEE80211_MLD_MAX_NUM_LINKS; i++) {
int r;
@@ -1224,6 +1209,15 @@ iwl_mvm_mld_change_sta_links(struct ieee80211_hw *hw,
return ret;
}
+static bool iwl_mvm_mld_can_activate_links(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ u16 desired_links)
+{
+ struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
+
+ return hweight16(desired_links) <= iwl_mvm_max_active_links(mvm, vif);
+}
+
const struct ieee80211_ops iwl_mvm_mld_hw_ops = {
.tx = iwl_mvm_mac_tx,
.wake_tx_queue = iwl_mvm_mac_wake_tx_queue,
@@ -1318,4 +1312,5 @@ const struct ieee80211_ops iwl_mvm_mld_hw_ops = {
.change_vif_links = iwl_mvm_mld_change_vif_links,
.change_sta_links = iwl_mvm_mld_change_sta_links,
+ .can_activate_links = iwl_mvm_mld_can_activate_links,
};
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c
index 23e64a757c..36dc291d98 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c
@@ -9,7 +9,9 @@
u32 iwl_mvm_sta_fw_id_mask(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
int filter_link_id)
{
+ struct ieee80211_link_sta *link_sta;
struct iwl_mvm_sta *mvmsta;
+ struct ieee80211_vif *vif;
unsigned int link_id;
u32 result = 0;
@@ -17,26 +19,27 @@ u32 iwl_mvm_sta_fw_id_mask(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
return 0;
mvmsta = iwl_mvm_sta_from_mac80211(sta);
+ vif = mvmsta->vif;
/* it's easy when the STA is not an MLD */
if (!sta->valid_links)
return BIT(mvmsta->deflink.sta_id);
/* but if it is an MLD, get the mask of all the FW STAs it has ... */
- for (link_id = 0; link_id < ARRAY_SIZE(mvmsta->link); link_id++) {
- struct iwl_mvm_link_sta *link_sta;
+ for_each_sta_active_link(vif, sta, link_sta, link_id) {
+ struct iwl_mvm_link_sta *mvm_link_sta;
/* unless we have a specific link in mind */
if (filter_link_id >= 0 && link_id != filter_link_id)
continue;
- link_sta =
+ mvm_link_sta =
rcu_dereference_check(mvmsta->link[link_id],
lockdep_is_held(&mvm->mutex));
- if (!link_sta)
+ if (!mvm_link_sta)
continue;
- result |= BIT(link_sta->sta_id);
+ result |= BIT(mvm_link_sta->sta_id);
}
return result;
@@ -582,14 +585,14 @@ static int iwl_mvm_mld_alloc_sta_links(struct iwl_mvm *mvm,
struct ieee80211_sta *sta)
{
struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
+ struct ieee80211_link_sta *link_sta;
unsigned int link_id;
int ret;
lockdep_assert_held(&mvm->mutex);
- for (link_id = 0; link_id < ARRAY_SIZE(sta->link); link_id++) {
- if (!rcu_access_pointer(sta->link[link_id]) ||
- mvm_sta->link[link_id])
+ for_each_sta_active_link(vif, sta, link_sta, link_id) {
+ if (WARN_ON(mvm_sta->link[link_id]))
continue;
ret = iwl_mvm_mld_alloc_sta_link(mvm, vif, sta, link_id);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index fe0fa9ff53..4653f60835 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -1769,6 +1769,8 @@ int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm);
int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm);
+void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif);
+
/*
* FW notifications / CMD responses handlers
* Convention: iwl_mvm_rx_<NAME OF THE CMD>
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
index 97d44354db..3dc6fb0600 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
@@ -3173,8 +3173,13 @@ void iwl_mvm_rx_umac_scan_complete_notif(struct iwl_mvm *mvm,
struct iwl_mvm_vif_link_info *link_info =
scan_vif->link[mvm->scan_link_id];
- if (!WARN_ON(!link_info))
+ /* It is possible that by the time the scan is complete the link
+ * was already removed and is not valid.
+ */
+ if (link_info)
memcpy(info.tsf_bssid, link_info->bssid, ETH_ALEN);
+ else
+ IWL_DEBUG_SCAN(mvm, "Scan link is no longer valid\n");
ieee80211_scan_completed(mvm->hw, &info);
mvm->scan_vif = NULL;