673062fc56
Improves tx throughput when connecting to some APs (e.g. Asus RT-AC88U) Signed-off-by: Felix Fietkau <nbd@nbd.name>
27 lines
958 B
Diff
27 lines
958 B
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Wed, 16 Sep 2020 18:43:46 +0200
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Subject: [PATCH] mac80211: allow bigger A-MSDU sizes in VHT, even if HT is
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limited
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Some APs (e.g. Asus RT-AC88U) have been observed to report an HT MSDU size
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limit of 3839 and a VHT limit of 7991. These APs can handle bigger frames
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than 3839 bytes just fine, so we should remove the VHT limit based on the
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HT capabilities. This improves tx throughput.
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/net/mac80211/vht.c
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+++ b/net/mac80211/vht.c
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@@ -315,10 +315,6 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(stru
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sta->sta.bandwidth = ieee80211_sta_cur_vht_bw(sta);
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- /* If HT IE reported 3839 bytes only, stay with that size. */
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- if (sta->sta.max_amsdu_len == IEEE80211_MAX_MPDU_LEN_HT_3839)
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- return;
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-
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switch (vht_cap->cap & IEEE80211_VHT_CAP_MAX_MPDU_MASK) {
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case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
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sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_11454;
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