diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/tx.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c index c7c3d7bd38ba..24cff98ecca0 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c @@ -639,6 +639,35 @@ static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb, } #endif +static void iwl_mvm_tx_add_stream(struct iwl_mvm *mvm, + struct iwl_mvm_sta *mvm_sta, u8 tid, + struct sk_buff *skb) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + u8 mac_queue = info->hw_queue; + struct sk_buff_head *deferred_tx_frames; + + lockdep_assert_held(&mvm_sta->lock); + + mvm_sta->deferred_traffic_tid_map |= BIT(tid); + set_bit(mvm_sta->sta_id, mvm->sta_deferred_frames); + + deferred_tx_frames = &mvm_sta->tid_data[tid].deferred_tx_frames; + + skb_queue_tail(deferred_tx_frames, skb); + + /* + * The first deferred frame should've stopped the MAC queues, so we + * should never get a second deferred frame for the RA/TID. + */ + if (!WARN(skb_queue_len(deferred_tx_frames) != 1, + "RATID %d/%d has %d deferred frames\n", mvm_sta->sta_id, tid, + skb_queue_len(deferred_tx_frames))) { + iwl_mvm_stop_mac_queues(mvm, BIT(mac_queue)); + schedule_work(&mvm->add_stream_wk); + } +} + /* * Sets the fields in the Tx cmd that are crypto related */ @@ -695,6 +724,14 @@ static int iwl_mvm_tx_mpdu(struct iwl_mvm *mvm, struct sk_buff *skb, hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); hdr->seq_ctrl |= cpu_to_le16(seq_number); is_ampdu = info->flags & IEEE80211_TX_CTL_AMPDU; + } else if (iwl_mvm_is_dqa_supported(mvm) && + (ieee80211_is_qos_nullfunc(fc) || + ieee80211_is_nullfunc(fc))) { + /* + * nullfunc frames should go to the MGMT queue regardless of QOS + */ + tid = IWL_MAX_TID_COUNT; + txq_id = mvmsta->tid_data[tid].txq_id; } /* Copy MAC header from skb into command buffer */ @@ -715,6 +752,23 @@ static int iwl_mvm_tx_mpdu(struct iwl_mvm *mvm, struct sk_buff *skb, txq_id = mvmsta->tid_data[tid].txq_id; } + if (iwl_mvm_is_dqa_supported(mvm)) { + if (unlikely(mvmsta->tid_data[tid].txq_id == + IEEE80211_INVAL_HW_QUEUE)) { + iwl_mvm_tx_add_stream(mvm, mvmsta, tid, skb); + + /* + * The frame is now deferred, and the worker scheduled + * will re-allocate it, so we can free it for now. + */ + iwl_trans_free_tx_cmd(mvm->trans, dev_cmd); + spin_unlock(&mvmsta->lock); + return 0; + } + + txq_id = mvmsta->tid_data[tid].txq_id; + } + IWL_DEBUG_TX(mvm, "TX to [%d|%d] Q:%d - seq: 0x%x\n", mvmsta->sta_id, tid, txq_id, IEEE80211_SEQ_TO_SN(seq_number)); |