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| author | Felix Fietkau <nbd@nbd.name> | 2016-09-04 17:58:08 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2016-09-05 14:02:34 +0200 |
| commit | 9cf044476865f17f7022d9adb19aab80f3312941 (patch) | |
| tree | 42405e1207713872f6dd37555969ccf41cf91b37 /package | |
| parent | 78e63ce7e3ee16a91e250f6fdbd4b5a9e90978ac (diff) | |
| download | master-31e0f0ae-9cf044476865f17f7022d9adb19aab80f3312941.tar.gz master-31e0f0ae-9cf044476865f17f7022d9adb19aab80f3312941.tar.bz2 master-31e0f0ae-9cf044476865f17f7022d9adb19aab80f3312941.zip | |
mac80211: add a tx sequence number allocation fix
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'package')
| -rw-r--r-- | package/kernel/mac80211/patches/346-mac80211-fix-sequence-number-assignment-for-PS-respo.patch | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/346-mac80211-fix-sequence-number-assignment-for-PS-respo.patch b/package/kernel/mac80211/patches/346-mac80211-fix-sequence-number-assignment-for-PS-respo.patch new file mode 100644 index 0000000000..a82d12f1c1 --- /dev/null +++ b/package/kernel/mac80211/patches/346-mac80211-fix-sequence-number-assignment-for-PS-respo.patch @@ -0,0 +1,107 @@ +From: Felix Fietkau <nbd@nbd.name> +Date: Sun, 4 Sep 2016 17:46:24 +0200 +Subject: [PATCH] mac80211: fix sequence number assignment for PS response + frames + +When using intermediate queues, sequence number allocation is deferred +until dequeue. This doesn't work for PS response frames, which bypass +those queues. + +Signed-off-by: Felix Fietkau <nbd@nbd.name> +--- + +--- a/net/mac80211/tx.c ++++ b/net/mac80211/tx.c +@@ -792,6 +792,36 @@ static __le16 ieee80211_tx_next_seq(stru + return ret; + } + ++static struct txq_info *ieee80211_get_txq(struct ieee80211_local *local, ++ struct ieee80211_vif *vif, ++ struct ieee80211_sta *pubsta, ++ struct sk_buff *skb) ++{ ++ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; ++ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); ++ struct ieee80211_txq *txq = NULL; ++ ++ if ((info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) || ++ (info->control.flags & IEEE80211_TX_CTRL_PS_RESPONSE)) ++ return NULL; ++ ++ if (!ieee80211_is_data(hdr->frame_control)) ++ return NULL; ++ ++ if (pubsta) { ++ u8 tid = skb->priority & IEEE80211_QOS_CTL_TID_MASK; ++ ++ txq = pubsta->txq[tid]; ++ } else if (vif) { ++ txq = vif->txq; ++ } ++ ++ if (!txq) ++ return NULL; ++ ++ return to_txq_info(txq); ++} ++ + static ieee80211_tx_result debug_noinline + ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx) + { +@@ -849,7 +879,8 @@ ieee80211_tx_h_sequence(struct ieee80211 + tid = *qc & IEEE80211_QOS_CTL_TID_MASK; + tx->sta->tx_stats.msdu[tid]++; + +- if (!tx->sta->sta.txq[0]) ++ if (!ieee80211_get_txq(tx->local, info->control.vif, &tx->sta->sta, ++ tx->skb)) + hdr->seq_ctrl = ieee80211_tx_next_seq(tx->sta, tid); + + return TX_CONTINUE; +@@ -1238,36 +1269,6 @@ ieee80211_tx_prepare(struct ieee80211_su + return TX_CONTINUE; + } + +-static struct txq_info *ieee80211_get_txq(struct ieee80211_local *local, +- struct ieee80211_vif *vif, +- struct ieee80211_sta *pubsta, +- struct sk_buff *skb) +-{ +- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; +- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); +- struct ieee80211_txq *txq = NULL; +- +- if ((info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) || +- (info->control.flags & IEEE80211_TX_CTRL_PS_RESPONSE)) +- return NULL; +- +- if (!ieee80211_is_data(hdr->frame_control)) +- return NULL; +- +- if (pubsta) { +- u8 tid = skb->priority & IEEE80211_QOS_CTL_TID_MASK; +- +- txq = pubsta->txq[tid]; +- } else if (vif) { +- txq = vif->txq; +- } +- +- if (!txq) +- return NULL; +- +- return to_txq_info(txq); +-} +- + static void ieee80211_set_skb_enqueue_time(struct sk_buff *skb) + { + IEEE80211_SKB_CB(skb)->control.enqueue_time = codel_get_time(); +@@ -3265,7 +3266,7 @@ static bool ieee80211_xmit_fast(struct i + + if (hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) { + *ieee80211_get_qos_ctl(hdr) = tid; +- if (!sta->sta.txq[0]) ++ if (!ieee80211_get_txq(local, &sdata->vif, &sta->sta, skb)) + hdr->seq_ctrl = ieee80211_tx_next_seq(sta, tid); + } else { + info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ; |