diff options
Diffstat (limited to 'package/kernel/mac80211/patches/322-mac80211-add-A-MSDU-tx-support.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/322-mac80211-add-A-MSDU-tx-support.patch | 46 |
1 files changed, 27 insertions, 19 deletions
diff --git a/package/kernel/mac80211/patches/322-mac80211-add-A-MSDU-tx-support.patch b/package/kernel/mac80211/patches/322-mac80211-add-A-MSDU-tx-support.patch index 43197d7855..d55f772760 100644 --- a/package/kernel/mac80211/patches/322-mac80211-add-A-MSDU-tx-support.patch +++ b/package/kernel/mac80211/patches/322-mac80211-add-A-MSDU-tx-support.patch @@ -48,21 +48,20 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org> /* keep last, obviously */ NUM_IEEE80211_HW_FLAGS -@@ -2070,6 +2080,9 @@ enum ieee80211_hw_flags { +@@ -2070,6 +2080,8 @@ enum ieee80211_hw_flags { * size is smaller (an example is LinkSys WRT120N with FW v1.0.07 * build 002 Jun 18 2012). * -+ * @max_tx_amsdu_subframes: maximum number of subframes used in software -+ * A-MSDU aggregation ++ * @max_tx_fragments: maximum fragments per (A-)MSDU. + * * @offchannel_tx_hw_queue: HW queue ID to use for offchannel TX * (if %IEEE80211_HW_QUEUE_CONTROL is set) * -@@ -2124,6 +2137,7 @@ struct ieee80211_hw { +@@ -2124,6 +2136,7 @@ struct ieee80211_hw { u8 max_rate_tries; u8 max_rx_aggregation_subframes; u8 max_tx_aggregation_subframes; -+ u8 max_tx_amsdu_subframes; ++ u8 max_tx_fragments; u8 offchannel_tx_hw_queue; u8 radiotap_mcs_details; u16 radiotap_vht_details; @@ -121,7 +120,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org> return skb; } EXPORT_SYMBOL(ieee80211_tx_dequeue); -@@ -2757,6 +2761,149 @@ void ieee80211_clear_fast_xmit(struct st +@@ -2757,6 +2761,158 @@ void ieee80211_clear_fast_xmit(struct st kfree_rcu(fast_tx, rcu_head); } @@ -192,11 +191,13 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org> + struct txq_info *txqi; + struct sk_buff **frag_tail, *head; + int subframe_len = skb->len - ETH_ALEN; ++ u8 max_subframes = sta->sta.max_amsdu_subframes; ++ int max_frags = local->hw.max_tx_fragments; + int max_amsdu_len; + __be16 len; + void *data; + bool ret = false; -+ int n = 1; ++ int n = 1, nfrags; + + if (!ieee80211_hw_check(&local->hw, TX_AMSDU)) + return false; @@ -208,13 +209,6 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org> + if (test_bit(IEEE80211_TXQ_NO_AMSDU, &txqi->flags)) + return false; + -+ /* -+ * A-MPDU limits maximum MPDU size to 4095 bytes. Since aggregation -+ * sessions are started/stopped without txq flush, use the limit here -+ * to avoid having to de-aggregate later. -+ */ -+ max_amsdu_len = min_t(int, sta->sta.max_amsdu_len, 4095); -+ + spin_lock_bh(&txqi->queue.lock); + + head = skb_peek_tail(&txqi->queue); @@ -224,17 +218,31 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org> + if (skb->len + head->len > max_amsdu_len) + goto out; + ++ /* ++ * HT A-MPDU limits maximum MPDU size to 4095 bytes. Since aggregation ++ * sessions are started/stopped without txq flush, use the limit here ++ * to avoid having to de-aggregate later. ++ */ ++ if (skb->len + head->len > 4095 && ++ !sta->sta.vht_cap.vht_supported) ++ goto out; ++ + if (!ieee80211_amsdu_prepare_head(sdata, fast_tx, head)) + goto out; + ++ nfrags = 1 + skb_shinfo(skb)->nr_frags; ++ nfrags += 1 + skb_shinfo(head)->nr_frags; + frag_tail = &skb_shinfo(head)->frag_list; + while (*frag_tail) { -+ frag_tail = &(*frag_tail)->next; -+ n++; ++ nfrags += 1 + skb_shinfo(*frag_tail)->nr_frags; ++ frag_tail = &(*frag_tail)->next; ++ n++; + } + -+ if (local->hw.max_tx_amsdu_subframes && -+ n > local->hw.max_tx_amsdu_subframes) ++ if (max_subframes && n > max_subframes) ++ goto out; ++ ++ if (max_frags && nfrags > max_frags) + goto out; + + if (skb_headroom(skb) < 8 || skb_tailroom(skb) < 3) { @@ -271,7 +279,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org> static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata, struct net_device *dev, struct sta_info *sta, struct ieee80211_fast_tx *fast_tx, -@@ -2811,6 +2958,10 @@ static bool ieee80211_xmit_fast(struct i +@@ -2811,6 +2967,10 @@ static bool ieee80211_xmit_fast(struct i ieee80211_tx_stats(dev, skb->len + extra_head); |