diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/sta.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/sta.c | 519 |
1 files changed, 232 insertions, 287 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c index e28009832da0..498c315291cf 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c @@ -314,7 +314,6 @@ static int iwl_mvm_invalidate_sta_queue(struct iwl_mvm *mvm, int queue, struct iwl_mvm_sta *mvmsta; u32 status; u8 sta_id; - int ret; if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) return -EINVAL; @@ -349,31 +348,21 @@ static int iwl_mvm_invalidate_sta_queue(struct iwl_mvm *mvm, int queue, /* Notify FW of queue removal from the STA queues */ status = ADD_STA_SUCCESS; - ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, - iwl_mvm_add_sta_cmd_size(mvm), - &cmd, &status); - - return ret; + return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, + iwl_mvm_add_sta_cmd_size(mvm), + &cmd, &status); } -static int iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, - int mac80211_queue, u8 tid, u8 flags) +static int iwl_mvm_disable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, + int queue, u8 tid, u8 flags) { struct iwl_scd_txq_cfg_cmd cmd = { .scd_queue = queue, .action = SCD_CFG_DISABLE_QUEUE, }; - bool remove_mac_queue = mac80211_queue != IEEE80211_INVAL_HW_QUEUE; int ret; - if (WARN_ON(remove_mac_queue && mac80211_queue >= IEEE80211_MAX_QUEUES)) - return -EINVAL; - if (iwl_mvm_has_new_tx_api(mvm)) { - if (remove_mac_queue) - mvm->hw_queue_to_mac80211[queue] &= - ~BIT(mac80211_queue); - iwl_trans_txq_free(mvm->trans, queue); return 0; @@ -384,36 +373,15 @@ static int iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); - /* - * If there is another TID with the same AC - don't remove the MAC queue - * from the mapping - */ - if (tid < IWL_MAX_TID_COUNT) { - unsigned long tid_bitmap = - mvm->queue_info[queue].tid_bitmap; - int ac = tid_to_mac80211_ac[tid]; - int i; - - for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT) { - if (tid_to_mac80211_ac[i] == ac) - remove_mac_queue = false; - } - } - - if (remove_mac_queue) - mvm->hw_queue_to_mac80211[queue] &= - ~BIT(mac80211_queue); - cmd.action = mvm->queue_info[queue].tid_bitmap ? SCD_CFG_ENABLE_QUEUE : SCD_CFG_DISABLE_QUEUE; if (cmd.action == SCD_CFG_DISABLE_QUEUE) mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE; IWL_DEBUG_TX_QUEUES(mvm, - "Disabling TXQ #%d tids=0x%x (mac80211 map:0x%x)\n", + "Disabling TXQ #%d tids=0x%x\n", queue, - mvm->queue_info[queue].tid_bitmap, - mvm->hw_queue_to_mac80211[queue]); + mvm->queue_info[queue].tid_bitmap); /* If the queue is still enabled - nothing left to do in this func */ if (cmd.action == SCD_CFG_ENABLE_QUEUE) @@ -423,15 +391,19 @@ static int iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, cmd.tid = mvm->queue_info[queue].txq_tid; /* Make sure queue info is correct even though we overwrite it */ - WARN(mvm->queue_info[queue].tid_bitmap || - mvm->hw_queue_to_mac80211[queue], - "TXQ #%d info out-of-sync - mac map=0x%x, tids=0x%x\n", - queue, mvm->hw_queue_to_mac80211[queue], - mvm->queue_info[queue].tid_bitmap); + WARN(mvm->queue_info[queue].tid_bitmap, + "TXQ #%d info out-of-sync - tids=0x%x\n", + queue, mvm->queue_info[queue].tid_bitmap); /* If we are here - the queue is freed and we can zero out these vals */ mvm->queue_info[queue].tid_bitmap = 0; - mvm->hw_queue_to_mac80211[queue] = 0; + + if (sta) { + struct iwl_mvm_txq *mvmtxq = + iwl_mvm_txq_from_tid(sta, tid); + + mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; + } /* Regardless if this is a reserved TXQ for a STA - mark it as false */ mvm->queue_info[queue].reserved = false; @@ -517,9 +489,14 @@ static int iwl_mvm_remove_sta_queue_marking(struct iwl_mvm *mvm, int queue) spin_lock_bh(&mvmsta->lock); /* Unmap MAC queues and TIDs from this queue */ for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { + struct iwl_mvm_txq *mvmtxq = + iwl_mvm_txq_from_tid(sta, tid); + if (mvmsta->tid_data[tid].state == IWL_AGG_ON) disable_agg_tids |= BIT(tid); mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; + + mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; } mvmsta->tfd_queue_msk &= ~BIT(queue); /* Don't use this queue anymore */ @@ -541,10 +518,11 @@ static int iwl_mvm_remove_sta_queue_marking(struct iwl_mvm *mvm, int queue) } static int iwl_mvm_free_inactive_queue(struct iwl_mvm *mvm, int queue, + struct ieee80211_sta *old_sta, u8 new_sta_id) { struct iwl_mvm_sta *mvmsta; - u8 txq_curr_ac, sta_id, tid; + u8 sta_id, tid; unsigned long disable_agg_tids = 0; bool same_sta; int ret; @@ -554,7 +532,6 @@ static int iwl_mvm_free_inactive_queue(struct iwl_mvm *mvm, int queue, if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) return -EINVAL; - txq_curr_ac = mvm->queue_info[queue].mac80211_ac; sta_id = mvm->queue_info[queue].ra_sta_id; tid = mvm->queue_info[queue].txq_tid; @@ -570,9 +547,7 @@ static int iwl_mvm_free_inactive_queue(struct iwl_mvm *mvm, int queue, iwl_mvm_invalidate_sta_queue(mvm, queue, disable_agg_tids, false); - ret = iwl_mvm_disable_txq(mvm, queue, - mvmsta->vif->hw_queue[txq_curr_ac], - tid, 0); + ret = iwl_mvm_disable_txq(mvm, old_sta, queue, tid, 0); if (ret) { IWL_ERR(mvm, "Failed to free inactive queue %d (ret=%d)\n", @@ -662,16 +637,15 @@ static int iwl_mvm_get_shared_queue(struct iwl_mvm *mvm, * in such a case, otherwise - if no redirection required - it does nothing, * unless the %force param is true. */ -static int iwl_mvm_scd_queue_redirect(struct iwl_mvm *mvm, int queue, int tid, - int ac, int ssn, unsigned int wdg_timeout, - bool force) +static int iwl_mvm_redirect_queue(struct iwl_mvm *mvm, int queue, int tid, + int ac, int ssn, unsigned int wdg_timeout, + bool force, struct iwl_mvm_txq *txq) { struct iwl_scd_txq_cfg_cmd cmd = { .scd_queue = queue, .action = SCD_CFG_DISABLE_QUEUE, }; bool shared_queue; - unsigned long mq; int ret; if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) @@ -695,14 +669,14 @@ static int iwl_mvm_scd_queue_redirect(struct iwl_mvm *mvm, int queue, int tid, cmd.sta_id = mvm->queue_info[queue].ra_sta_id; cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[mvm->queue_info[queue].mac80211_ac]; cmd.tid = mvm->queue_info[queue].txq_tid; - mq = mvm->hw_queue_to_mac80211[queue]; shared_queue = hweight16(mvm->queue_info[queue].tid_bitmap) > 1; IWL_DEBUG_TX_QUEUES(mvm, "Redirecting TXQ #%d to FIFO #%d\n", queue, iwl_mvm_ac_to_tx_fifo[ac]); - /* Stop MAC queues and wait for this queue to empty */ - iwl_mvm_stop_mac_queues(mvm, mq); + /* Stop the queue and wait for it to empty */ + txq->stopped = true; + ret = iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(queue)); if (ret) { IWL_ERR(mvm, "Error draining queue %d before reconfig\n", @@ -743,8 +717,8 @@ static int iwl_mvm_scd_queue_redirect(struct iwl_mvm *mvm, int queue, int tid, iwl_trans_txq_set_shared_mode(mvm->trans, queue, true); out: - /* Continue using the MAC queues */ - iwl_mvm_start_mac_queues(mvm, mq); + /* Continue using the queue */ + txq->stopped = false; return ret; } @@ -769,14 +743,15 @@ static int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id, return -ENOSPC; } -static int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, int mac80211_queue, +static int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, u8 sta_id, u8 tid, unsigned int timeout) { int queue, size = IWL_DEFAULT_QUEUE_SIZE; if (tid == IWL_MAX_TID_COUNT) { tid = IWL_MGMT_TID; - size = IWL_MGMT_QUEUE_SIZE; + size = max_t(u32, IWL_MGMT_QUEUE_SIZE, + mvm->trans->cfg->min_txq_size); } queue = iwl_trans_txq_alloc(mvm->trans, cpu_to_le16(TX_QUEUE_CFG_ENABLE_QUEUE), @@ -792,10 +767,7 @@ static int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, int mac80211_queue, IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d for sta %d tid %d\n", queue, sta_id, tid); - mvm->hw_queue_to_mac80211[queue] |= BIT(mac80211_queue); - IWL_DEBUG_TX_QUEUES(mvm, - "Enabling TXQ #%d (mac80211 map:0x%x)\n", - queue, mvm->hw_queue_to_mac80211[queue]); + IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d\n", queue); return queue; } @@ -805,9 +777,10 @@ static int iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm *mvm, int tid) { struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); + struct iwl_mvm_txq *mvmtxq = + iwl_mvm_txq_from_tid(sta, tid); unsigned int wdg_timeout = iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); - u8 mac_queue = mvmsta->vif->hw_queue[ac]; int queue = -1; lockdep_assert_held(&mvm->mutex); @@ -815,11 +788,14 @@ static int iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm *mvm, IWL_DEBUG_TX_QUEUES(mvm, "Allocating queue for sta %d on tid %d\n", mvmsta->sta_id, tid); - queue = iwl_mvm_tvqm_enable_txq(mvm, mac_queue, mvmsta->sta_id, tid, - wdg_timeout); + queue = iwl_mvm_tvqm_enable_txq(mvm, mvmsta->sta_id, tid, wdg_timeout); if (queue < 0) return queue; + mvmtxq->txq_id = queue; + mvm->tvqm_info[queue].txq_tid = tid; + mvm->tvqm_info[queue].sta_id = mvmsta->sta_id; + IWL_DEBUG_TX_QUEUES(mvm, "Allocated queue is %d\n", queue); spin_lock_bh(&mvmsta->lock); @@ -829,8 +805,9 @@ static int iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm *mvm, return 0; } -static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, int queue, - int mac80211_queue, u8 sta_id, u8 tid) +static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, + struct ieee80211_sta *sta, + int queue, u8 sta_id, u8 tid) { bool enable_queue = true; @@ -845,14 +822,6 @@ static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, int queue, if (mvm->queue_info[queue].tid_bitmap) enable_queue = false; - if (mac80211_queue != IEEE80211_INVAL_HW_QUEUE) { - WARN(mac80211_queue >= - BITS_PER_BYTE * sizeof(mvm->hw_queue_to_mac80211[0]), - "cannot track mac80211 queue %d (queue %d, sta %d, tid %d)\n", - mac80211_queue, queue, sta_id, tid); - mvm->hw_queue_to_mac80211[queue] |= BIT(mac80211_queue); - } - mvm->queue_info[queue].tid_bitmap |= BIT(tid); mvm->queue_info[queue].ra_sta_id = sta_id; @@ -866,16 +835,22 @@ static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, int queue, mvm->queue_info[queue].txq_tid = tid; } + if (sta) { + struct iwl_mvm_txq *mvmtxq = + iwl_mvm_txq_from_tid(sta, tid); + + mvmtxq->txq_id = queue; + } + IWL_DEBUG_TX_QUEUES(mvm, - "Enabling TXQ #%d tids=0x%x (mac80211 map:0x%x)\n", - queue, mvm->queue_info[queue].tid_bitmap, - mvm->hw_queue_to_mac80211[queue]); + "Enabling TXQ #%d tids=0x%x\n", + queue, mvm->queue_info[queue].tid_bitmap); return enable_queue; } -static bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, - int mac80211_queue, u16 ssn, +static bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, + int queue, u16 ssn, const struct iwl_trans_txq_scd_cfg *cfg, unsigned int wdg_timeout) { @@ -895,8 +870,7 @@ static bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, return false; /* Send the enabling command if we need to */ - if (!iwl_mvm_update_txq_mapping(mvm, queue, mac80211_queue, - cfg->sta_id, cfg->tid)) + if (!iwl_mvm_update_txq_mapping(mvm, sta, queue, cfg->sta_id, cfg->tid)) return false; inc_ssn = iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, @@ -989,9 +963,10 @@ static void iwl_mvm_unshare_queue(struct iwl_mvm *mvm, int queue) ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); - ret = iwl_mvm_scd_queue_redirect(mvm, queue, tid, - tid_to_mac80211_ac[tid], ssn, - wdg_timeout, true); + ret = iwl_mvm_redirect_queue(mvm, queue, tid, + tid_to_mac80211_ac[tid], ssn, + wdg_timeout, true, + iwl_mvm_txq_from_tid(sta, tid)); if (ret) { IWL_ERR(mvm, "Failed to redirect TXQ %d\n", queue); return; @@ -1068,11 +1043,9 @@ static bool iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm, * Remove the ones that did. */ for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { - int mac_queue = mvmsta->vif->hw_queue[tid_to_mac80211_ac[tid]]; u16 tid_bitmap; mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; - mvm->hw_queue_to_mac80211[queue] &= ~BIT(mac_queue); mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); tid_bitmap = mvm->queue_info[queue].tid_bitmap; @@ -1105,10 +1078,6 @@ static bool iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm, * sure all TIDs have existing corresponding mac queues enabled */ tid_bitmap = mvm->queue_info[queue].tid_bitmap; - for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { - mvm->hw_queue_to_mac80211[queue] |= - BIT(mvmsta->vif->hw_queue[tid_to_mac80211_ac[tid]]); - } /* If the queue is marked as shared - "unshare" it */ if (hweight16(mvm->queue_info[queue].tid_bitmap) == 1 && @@ -1136,6 +1105,7 @@ static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta) unsigned long unshare_queues = 0; unsigned long changetid_queues = 0; int i, ret, free_queue = -ENOSPC; + struct ieee80211_sta *queue_owner = NULL; lockdep_assert_held(&mvm->mutex); @@ -1201,13 +1171,14 @@ static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta) inactive_tid_bitmap, &unshare_queues, &changetid_queues); - if (ret >= 0 && free_queue < 0) + if (ret >= 0 && free_queue < 0) { + queue_owner = sta; free_queue = ret; + } /* only unlock sta lock - we still need the queue info lock */ spin_unlock_bh(&mvmsta->lock); } - rcu_read_unlock(); /* Reconfigure queues requiring reconfiguation */ for_each_set_bit(i, &unshare_queues, IWL_MAX_HW_QUEUES) @@ -1216,18 +1187,21 @@ static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta) iwl_mvm_change_queue_tid(mvm, i); if (free_queue >= 0 && alloc_for_sta != IWL_MVM_INVALID_STA) { - ret = iwl_mvm_free_inactive_queue(mvm, free_queue, + ret = iwl_mvm_free_inactive_queue(mvm, free_queue, queue_owner, alloc_for_sta); - if (ret) + if (ret) { + rcu_read_unlock(); return ret; + } } + rcu_read_unlock(); + return free_queue; } static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, - struct ieee80211_sta *sta, u8 ac, int tid, - struct ieee80211_hdr *hdr) + struct ieee80211_sta *sta, u8 ac, int tid) { struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); struct iwl_trans_txq_scd_cfg cfg = { @@ -1238,7 +1212,6 @@ static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, }; unsigned int wdg_timeout = iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false); - u8 mac_queue = mvmsta->vif->hw_queue[ac]; int queue = -1; unsigned long disable_agg_tids = 0; enum iwl_mvm_agg_state queue_state; @@ -1257,12 +1230,7 @@ static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number); spin_unlock_bh(&mvmsta->lock); - /* - * Non-QoS, QoS NDP and MGMT frames should go to a MGMT queue, if one - * exists - */ - if (!ieee80211_is_data_qos(hdr->frame_control) || - ieee80211_is_qos_nullfunc(hdr->frame_control)) { + if (tid == IWL_MAX_TID_COUNT) { queue = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, IWL_MVM_DQA_MIN_MGMT_QUEUE, IWL_MVM_DQA_MAX_MGMT_QUEUE); @@ -1341,8 +1309,7 @@ static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, } } - inc_ssn = iwl_mvm_enable_txq(mvm, queue, mac_queue, - ssn, &cfg, wdg_timeout); + inc_ssn = iwl_mvm_enable_txq(mvm, sta, queue, ssn, &cfg, wdg_timeout); /* * Mark queue as shared in transport if shared @@ -1384,8 +1351,9 @@ static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, } } else { /* Redirect queue, if needed */ - ret = iwl_mvm_scd_queue_redirect(mvm, queue, tid, ac, ssn, - wdg_timeout, false); + ret = iwl_mvm_redirect_queue(mvm, queue, tid, ac, ssn, + wdg_timeout, false, + iwl_mvm_txq_from_tid(sta, tid)); if (ret) goto out_err; } @@ -1393,7 +1361,7 @@ static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm, return 0; out_err: - iwl_mvm_disable_txq(mvm, queue, mac_queue, tid, 0); + iwl_mvm_disable_txq(mvm, sta, queue, tid, 0); return ret; } @@ -1406,87 +1374,32 @@ static inline u8 iwl_mvm_tid_to_ac_queue(int tid) return tid_to_mac80211_ac[tid]; } -static void iwl_mvm_tx_deferred_stream(struct iwl_mvm *mvm, - struct ieee80211_sta *sta, int tid) -{ - struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); - struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; - struct sk_buff *skb; - struct ieee80211_hdr *hdr; - struct sk_buff_head deferred_tx; - u8 mac_queue; - bool no_queue = false; /* Marks if there is a problem with the queue */ - u8 ac; - - lockdep_assert_held(&mvm->mutex); - - skb = skb_peek(&tid_data->deferred_tx_frames); - if (!skb) - return; - hdr = (void *)skb->data; - - ac = iwl_mvm_tid_to_ac_queue(tid); - mac_queue = IEEE80211_SKB_CB(skb)->hw_queue; - - if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE && - iwl_mvm_sta_alloc_queue(mvm, sta, ac, tid, hdr)) { - IWL_ERR(mvm, - "Can't alloc TXQ for sta %d tid %d - dropping frame\n", - mvmsta->sta_id, tid); - - /* - * Mark queue as problematic so later the deferred traffic is - * freed, as we can do nothing with it - */ - no_queue = true; - } - - __skb_queue_head_init(&deferred_tx); - - /* Disable bottom-halves when entering TX path */ - local_bh_disable(); - spin_lock(&mvmsta->lock); - skb_queue_splice_init(&tid_data->deferred_tx_frames, &deferred_tx); - mvmsta->deferred_traffic_tid_map &= ~BIT(tid); - spin_unlock(&mvmsta->lock); - - while ((skb = __skb_dequeue(&deferred_tx))) - if (no_queue || iwl_mvm_tx_skb(mvm, skb, sta)) - ieee80211_free_txskb(mvm->hw, skb); - local_bh_enable(); - - /* Wake queue */ - iwl_mvm_start_mac_queues(mvm, BIT(mac_queue)); -} - void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk) { struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, add_stream_wk); - struct ieee80211_sta *sta; - struct iwl_mvm_sta *mvmsta; - unsigned long deferred_tid_traffic; - int sta_id, tid; mutex_lock(&mvm->mutex); iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA); - /* Go over all stations with deferred traffic */ - for_each_set_bit(sta_id, mvm->sta_deferred_frames, - IWL_MVM_STATION_COUNT) { - clear_bit(sta_id, mvm->sta_deferred_frames); - sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], - lockdep_is_held(&mvm->mutex)); - if (IS_ERR_OR_NULL(sta)) - continue; + while (!list_empty(&mvm->add_stream_txqs)) { + struct iwl_mvm_txq *mvmtxq; + struct ieee80211_txq *txq; + u8 tid; - mvmsta = iwl_mvm_sta_from_mac80211(sta); - deferred_tid_traffic = mvmsta->deferred_traffic_tid_map; + mvmtxq = list_first_entry(&mvm->add_stream_txqs, + struct iwl_mvm_txq, list); + + txq = container_of((void *)mvmtxq, struct ieee80211_txq, + drv_priv); + tid = txq->tid; + if (tid == IEEE80211_NUM_TIDS) + tid = IWL_MAX_TID_COUNT; - for_each_set_bit(tid, &deferred_tid_traffic, - IWL_MAX_TID_COUNT + 1) - iwl_mvm_tx_deferred_stream(mvm, sta, tid); + iwl_mvm_sta_alloc_queue(mvm, txq->sta, txq->ac, tid); + list_del_init(&mvmtxq->list); + iwl_mvm_mac_itxq_xmit(mvm->hw, txq); } mutex_unlock(&mvm->mutex); @@ -1542,10 +1455,11 @@ static int iwl_mvm_reserve_sta_stream(struct iwl_mvm *mvm, * Note that re-enabling aggregations isn't done in this function. */ static void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm, - struct iwl_mvm_sta *mvm_sta) + struct ieee80211_sta *sta) { - unsigned int wdg_timeout = - iwl_mvm_get_wd_timeout(mvm, mvm_sta->vif, false, false); + struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); + unsigned int wdg = + iwl_mvm_get_wd_timeout(mvm, mvm_sta->vif, false, false); int i; struct iwl_trans_txq_scd_cfg cfg = { .sta_id = mvm_sta->sta_id, @@ -1561,23 +1475,18 @@ static void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data = &mvm_sta->tid_data[i]; int txq_id = tid_data->txq_id; int ac; - u8 mac_queue; if (txq_id == IWL_MVM_INVALID_QUEUE) continue; - skb_queue_head_init(&tid_data->deferred_tx_frames); - ac = tid_to_mac80211_ac[i]; - mac_queue = mvm_sta->vif->hw_queue[ac]; if (iwl_mvm_has_new_tx_api(mvm)) { IWL_DEBUG_TX_QUEUES(mvm, "Re-mapping sta %d tid %d\n", mvm_sta->sta_id, i); - txq_id = iwl_mvm_tvqm_enable_txq(mvm, mac_queue, - mvm_sta->sta_id, - i, wdg_timeout); + txq_id = iwl_mvm_tvqm_enable_txq(mvm, mvm_sta->sta_id, + i, wdg); tid_data->txq_id = txq_id; /* @@ -1600,8 +1509,7 @@ static void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm, "Re-mapping sta %d tid %d to queue %d\n", mvm_sta->sta_id, i, txq_id); - iwl_mvm_enable_txq(mvm, txq_id, mac_queue, seq, &cfg, - wdg_timeout); + iwl_mvm_enable_txq(mvm, sta, txq_id, seq, &cfg, wdg); mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_READY; } } @@ -1691,7 +1599,7 @@ int iwl_mvm_add_sta(struct iwl_mvm *mvm, if (ret) goto err; - iwl_mvm_realloc_queues_after_restart(mvm, mvm_sta); + iwl_mvm_realloc_queues_after_restart(mvm, sta); sta_update = true; sta_flags = iwl_mvm_has_new_tx_api(mvm) ? 0 : STA_MODIFY_QUEUES; goto update_fw; @@ -1724,9 +1632,17 @@ int iwl_mvm_add_sta(struct iwl_mvm *mvm, * frames until the queue is allocated */ mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; - skb_queue_head_init(&mvm_sta->tid_data[i].deferred_tx_frames); } - mvm_sta->deferred_traffic_tid_map = 0; + + for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { + struct iwl_mvm_txq *mvmtxq = + iwl_mvm_txq_from_mac80211(sta->txq[i]); + + mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; + INIT_LIST_HEAD(&mvmtxq->list); + atomic_set(&mvmtxq->tx_request, 0); + } + mvm_sta->agg_tids = 0; if (iwl_mvm_has_new_rx_api(mvm) && @@ -1861,9 +1777,9 @@ static int iwl_mvm_rm_sta_common(struct iwl_mvm *mvm, u8 sta_id) static void iwl_mvm_disable_sta_queues(struct iwl_mvm *mvm, struct ieee80211_vif *vif, - struct iwl_mvm_sta *mvm_sta) + struct ieee80211_sta *sta) { - int ac; + struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); int i; lockdep_assert_held(&mvm->mutex); @@ -1872,11 +1788,17 @@ static void iwl_mvm_disable_sta_queues(struct iwl_mvm *mvm, if (mvm_sta->tid_data[i].txq_id == IWL_MVM_INVALID_QUEUE) continue; - ac = iwl_mvm_tid_to_ac_queue(i); - iwl_mvm_disable_txq(mvm, mvm_sta->tid_data[i].txq_id, - vif->hw_queue[ac], i, 0); + iwl_mvm_disable_txq(mvm, sta, mvm_sta->tid_data[i].txq_id, i, + 0); mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE; } + + for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { + struct iwl_mvm_txq *mvmtxq = + iwl_mvm_txq_from_mac80211(sta->txq[i]); + + mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE; + } } int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm, @@ -1938,7 +1860,7 @@ int iwl_mvm_rm_sta(struct iwl_mvm *mvm, ret = iwl_mvm_drain_sta(mvm, mvm_sta, false); - iwl_mvm_disable_sta_queues(mvm, vif, mvm_sta); + iwl_mvm_disable_sta_queues(mvm, vif, sta); /* If there is a TXQ still marked as reserved - free it */ if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) { @@ -2044,7 +1966,7 @@ static void iwl_mvm_enable_aux_snif_queue(struct iwl_mvm *mvm, u16 *queue, if (iwl_mvm_has_new_tx_api(mvm)) { int tvqm_queue = - iwl_mvm_tvqm_enable_txq(mvm, *queue, sta_id, + iwl_mvm_tvqm_enable_txq(mvm, sta_id, IWL_MAX_TID_COUNT, wdg_timeout); *queue = tvqm_queue; @@ -2057,7 +1979,7 @@ static void iwl_mvm_enable_aux_snif_queue(struct iwl_mvm *mvm, u16 *queue, .frame_limit = IWL_FRAME_LIMIT, }; - iwl_mvm_enable_txq(mvm, *queue, *queue, 0, &cfg, wdg_timeout); + iwl_mvm_enable_txq(mvm, NULL, *queue, 0, &cfg, wdg_timeout); } } @@ -2135,8 +2057,7 @@ int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) lockdep_assert_held(&mvm->mutex); - iwl_mvm_disable_txq(mvm, mvm->snif_queue, mvm->snif_queue, - IWL_MAX_TID_COUNT, 0); + iwl_mvm_disable_txq(mvm, NULL, mvm->snif_queue, IWL_MAX_TID_COUNT, 0); ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id); if (ret) IWL_WARN(mvm, "Failed sending remove station\n"); @@ -2195,8 +2116,7 @@ int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) bsta->tfd_queue_msk |= BIT(queue); - iwl_mvm_enable_txq(mvm, queue, vif->hw_queue[0], 0, - &cfg, wdg_timeout); + iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout); } if (vif->type == NL80211_IFTYPE_ADHOC) @@ -2215,8 +2135,7 @@ int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) * to firmware so enable queue here - after the station was added */ if (iwl_mvm_has_new_tx_api(mvm)) { - queue = iwl_mvm_tvqm_enable_txq(mvm, vif->hw_queue[0], - bsta->sta_id, + queue = iwl_mvm_tvqm_enable_txq(mvm, bsta->sta_id, IWL_MAX_TID_COUNT, wdg_timeout); @@ -2254,7 +2173,7 @@ static void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm, return; } - iwl_mvm_disable_txq(mvm, queue, vif->hw_queue[0], IWL_MAX_TID_COUNT, 0); + iwl_mvm_disable_txq(mvm, NULL, queue, IWL_MAX_TID_COUNT, 0); if (iwl_mvm_has_new_tx_api(mvm)) return; @@ -2377,10 +2296,8 @@ int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) * Note that this is done here as we want to avoid making DQA * changes in mac80211 layer. */ - if (vif->type == NL80211_IFTYPE_ADHOC) { - vif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; - mvmvif->cab_queue = vif->cab_queue; - } + if (vif->type == NL80211_IFTYPE_ADHOC) + mvmvif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; /* * While in previous FWs we had to exclude cab queue from TFD queue @@ -2388,9 +2305,9 @@ int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) */ if (!iwl_mvm_has_new_tx_api(mvm) && fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { - iwl_mvm_enable_txq(mvm, vif->cab_queue, vif->cab_queue, 0, - &cfg, timeout); - msta->tfd_queue_msk |= BIT(vif->cab_queue); + iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, + timeout); + msta->tfd_queue_msk |= BIT(mvmvif->cab_queue); } ret = iwl_mvm_add_int_sta_common(mvm, msta, maddr, mvmvif->id, mvmvif->color); @@ -2407,24 +2324,25 @@ int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) * tfd_queue_mask. */ if (iwl_mvm_has_new_tx_api(mvm)) { - int queue = iwl_mvm_tvqm_enable_txq(mvm, vif->cab_queue, - msta->sta_id, + int queue = iwl_mvm_tvqm_enable_txq(mvm, msta->sta_id, 0, timeout); mvmvif->cab_queue = queue; } else if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) - iwl_mvm_enable_txq(mvm, vif->cab_queue, vif->cab_queue, 0, - &cfg, timeout); + iwl_mvm_enable_txq(mvm, NULL, mvmvif->cab_queue, 0, &cfg, + timeout); if (mvmvif->ap_wep_key) { u8 key_offset = iwl_mvm_set_fw_key_idx(mvm); + __set_bit(key_offset, mvm->fw_key_table); + if (key_offset == STA_KEY_IDX_INVALID) return -ENOSPC; ret = iwl_mvm_send_sta_key(mvm, mvmvif->mcast_sta.sta_id, - mvmvif->ap_wep_key, 1, 0, NULL, 0, + mvmvif->ap_wep_key, true, 0, NULL, 0, key_offset, 0); if (ret) return ret; @@ -2433,6 +2351,59 @@ int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) return 0; } +static int __iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, u8 sta_id, + struct ieee80211_key_conf *keyconf, + bool mcast) +{ + union { + struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; + struct iwl_mvm_add_sta_key_cmd cmd; + } u = {}; + bool new_api = fw_has_api(&mvm->fw->ucode_capa, + IWL_UCODE_TLV_API_TKIP_MIC_KEYS); + __le16 key_flags; + int ret, size; + u32 status; + + /* This is a valid situation for GTK removal */ + if (sta_id == IWL_MVM_INVALID_STA) + return 0; + + key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) & + STA_KEY_FLG_KEYID_MSK); + key_flags |= cpu_to_le16(STA_KEY_FLG_NO_ENC | STA_KEY_FLG_WEP_KEY_MAP); + key_flags |= cpu_to_le16(STA_KEY_NOT_VALID); + + if (mcast) + key_flags |= cpu_to_le16(STA_KEY_MULTICAST); + + /* + * The fields assigned here are in the same location at the start + * of the command, so we can do this union trick. + */ + u.cmd.common.key_flags = key_flags; + u.cmd.common.key_offset = keyconf->hw_key_idx; + u.cmd.common.sta_id = sta_id; + + size = new_api ? sizeof(u.cmd) : sizeof(u.cmd_v1); + + status = ADD_STA_SUCCESS; + ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, &u.cmd, + &status); + + switch (status) { + case ADD_STA_SUCCESS: + IWL_DEBUG_WEP(mvm, "MODIFY_STA: remove sta key passed\n"); + break; + default: + ret = -EIO; + IWL_ERR(mvm, "MODIFY_STA: remove sta key failed\n"); + break; + } + + return ret; +} + /* * Send the FW a request to remove the station from it's internal data * structures, and in addition remove it from the local data structure. @@ -2446,8 +2417,29 @@ int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif) iwl_mvm_flush_sta(mvm, &mvmvif->mcast_sta, true, 0); - iwl_mvm_disable_txq(mvm, mvmvif->cab_queue, vif->cab_queue, - 0, 0); + iwl_mvm_disable_txq(mvm, NULL, mvmvif->cab_queue, 0, 0); + + if (mvmvif->ap_wep_key) { + int i; + + if (!__test_and_clear_bit(mvmvif->ap_wep_key->hw_key_idx, + mvm->fw_key_table)) { + IWL_ERR(mvm, "offset %d not used in fw key table.\n", + mvmvif->ap_wep_key->hw_key_idx); + return -ENOENT; + } + + /* track which key was deleted last */ + for (i = 0; i < STA_KEY_MAX_NUM; i++) { + if (mvm->fw_key_deleted[i] < U8_MAX) + mvm->fw_key_deleted[i]++; + } + mvm->fw_key_deleted[mvmvif->ap_wep_key->hw_key_idx] = 0; + ret = __iwl_mvm_remove_sta_key(mvm, mvmvif->mcast_sta.sta_id, + mvmvif->ap_wep_key, true); + if (ret) + return ret; + } ret = iwl_mvm_rm_sta_common(mvm, mvmvif->mcast_sta.sta_id); if (ret) @@ -2781,7 +2773,7 @@ int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); struct iwl_mvm_tid_data *tid_data; u16 normalized_ssn; - int txq_id; + u16 txq_id; int ret; if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT)) @@ -2823,17 +2815,24 @@ int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, */ txq_id = mvmsta->tid_data[tid].txq_id; if (txq_id == IWL_MVM_INVALID_QUEUE) { - txq_id = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, - IWL_MVM_DQA_MIN_DATA_QUEUE, - IWL_MVM_DQA_MAX_DATA_QUEUE); - if (txq_id < 0) { - ret = txq_id; + ret = iwl_mvm_find_free_queue(mvm, mvmsta->sta_id, + IWL_MVM_DQA_MIN_DATA_QUEUE, + IWL_MVM_DQA_MAX_DATA_QUEUE); + if (ret < 0) { IWL_ERR(mvm, "Failed to allocate agg queue\n"); goto out; } + txq_id = ret; + /* TXQ hasn't yet been enabled, so mark it only as reserved */ mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_RESERVED; + } else if (WARN_ON(txq_id >= IWL_MAX_HW_QUEUES)) { + ret = -ENXIO; + IWL_ERR(mvm, "tid_id %d out of range (0, %d)!\n", + tid, IWL_MAX_HW_QUEUES - 1); + goto out; + } else if (unlikely(mvm->queue_info[txq_id].status == IWL_MVM_QUEUE_SHARED)) { ret = -ENXIO; @@ -2976,8 +2975,7 @@ int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, } if (alloc_queue) - iwl_mvm_enable_txq(mvm, queue, - vif->hw_queue[tid_to_mac80211_ac[tid]], ssn, + iwl_mvm_enable_txq(mvm, sta, queue, ssn, &cfg, wdg_timeout); /* Send ADD_STA command to enable aggs only if the queue isn't shared */ @@ -3474,59 +3472,6 @@ static int __iwl_mvm_set_sta_key(struct iwl_mvm *mvm, return ret; } -static int __iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, u8 sta_id, - struct ieee80211_key_conf *keyconf, - bool mcast) -{ - union { - struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1; - struct iwl_mvm_add_sta_key_cmd cmd; - } u = {}; - bool new_api = fw_has_api(&mvm->fw->ucode_capa, - IWL_UCODE_TLV_API_TKIP_MIC_KEYS); - __le16 key_flags; - int ret, size; - u32 status; - - /* This is a valid situation for GTK removal */ - if (sta_id == IWL_MVM_INVALID_STA) - return 0; - - key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) & - STA_KEY_FLG_KEYID_MSK); - key_flags |= cpu_to_le16(STA_KEY_FLG_NO_ENC | STA_KEY_FLG_WEP_KEY_MAP); - key_flags |= cpu_to_le16(STA_KEY_NOT_VALID); - - if (mcast) - key_flags |= cpu_to_le16(STA_KEY_MULTICAST); - - /* - * The fields assigned here are in the same location at the start - * of the command, so we can do this union trick. - */ - u.cmd.common.key_flags = key_flags; - u.cmd.common.key_offset = keyconf->hw_key_idx; - u.cmd.common.sta_id = sta_id; - - size = new_api ? sizeof(u.cmd) : sizeof(u.cmd_v1); - - status = ADD_STA_SUCCESS; - ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, &u.cmd, - &status); - - switch (status) { - case ADD_STA_SUCCESS: - IWL_DEBUG_WEP(mvm, "MODIFY_STA: remove sta key passed\n"); - break; - default: - ret = -EIO; - IWL_ERR(mvm, "MODIFY_STA: remove sta key failed\n"); - break; - } - - return ret; -} - int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct ieee80211_sta *sta, |