diff options
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/mac80211.c | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/mvm.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/sta.c | 15 |
3 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c index cab2f0c61ec..1a4a032cecb 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c @@ -389,6 +389,7 @@ static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) ieee80211_wake_queues(mvm->hw); mvm->vif_count = 0; + mvm->rx_ba_sessions = 0; } static int iwl_mvm_mac_start(struct ieee80211_hw *hw) diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h index d40d7db185d..420e82d379d 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h @@ -419,6 +419,7 @@ struct iwl_mvm { struct work_struct sta_drained_wk; unsigned long sta_drained[BITS_TO_LONGS(IWL_MVM_STATION_COUNT)]; atomic_t pending_frames[IWL_MVM_STATION_COUNT]; + u8 rx_ba_sessions; /* configured by mac80211 */ u32 rts_threshold; diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c index b6ab0766ea9..85d4bbe5215 100644 --- a/drivers/net/wireless/iwlwifi/mvm/sta.c +++ b/drivers/net/wireless/iwlwifi/mvm/sta.c @@ -608,6 +608,8 @@ int iwl_mvm_rm_bcast_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *bsta) return ret; } +#define IWL_MAX_RX_BA_SESSIONS 16 + int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, int tid, u16 ssn, bool start) { @@ -618,6 +620,11 @@ int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, lockdep_assert_held(&mvm->mutex); + if (start && mvm->rx_ba_sessions >= IWL_MAX_RX_BA_SESSIONS) { + IWL_WARN(mvm, "Not enough RX BA SESSIONS\n"); + return -ENOSPC; + } + cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); cmd.sta_id = mvm_sta->sta_id; cmd.add_modify = STA_MODE_MODIFY; @@ -652,6 +659,14 @@ int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, break; } + if (!ret) { + if (start) + mvm->rx_ba_sessions++; + else if (mvm->rx_ba_sessions > 0) + /* check that restart flow didn't zero the counter */ + mvm->rx_ba_sessions--; + } + return ret; } |