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| author | Ping-Ke Shih <pkshih@realtek.com> | 2022-01-03 09:36:21 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-27 09:00:56 +0100 |
| commit | eafd73401a692744b342cbf0e77a3d7d640be687 (patch) | |
| tree | 6562e29ee1f8a181a23fa5defd4e4c1f363c6fef /net | |
| parent | c78017764c7d2c7b9ea42fd1aadd78f07b3ec403 (diff) | |
| download | linux-stable-eafd73401a692744b342cbf0e77a3d7d640be687.tar.gz linux-stable-eafd73401a692744b342cbf0e77a3d7d640be687.tar.bz2 linux-stable-eafd73401a692744b342cbf0e77a3d7d640be687.zip | |
mac80211: allow non-standard VHT MCS-10/11
[ Upstream commit 04be6d337d37400ad5b3d5f27ca87645ee5a18a3 ]
Some AP can possibly try non-standard VHT rate and mac80211 warns and drops
packets, and leads low TCP throughput.
Rate marked as a VHT rate but data is invalid: MCS: 10, NSS: 2
WARNING: CPU: 1 PID: 7817 at net/mac80211/rx.c:4856 ieee80211_rx_list+0x223/0x2f0 [mac8021
Since commit c27aa56a72b8 ("cfg80211: add VHT rate entries for MCS-10 and MCS-11")
has added, mac80211 adds this support as well.
After this patch, throughput is good and iw can get the bitrate:
rx bitrate: 975.1 MBit/s VHT-MCS 10 80MHz short GI VHT-NSS 2
or
rx bitrate: 1083.3 MBit/s VHT-MCS 11 80MHz short GI VHT-NSS 2
Buglink: https://bugzilla.suse.com/show_bug.cgi?id=1192891
Reported-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://lore.kernel.org/r/20220103013623.17052-1-pkshih@realtek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/mac80211/rx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index cbe1177d95f9..13cae95a3466 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -4434,7 +4434,7 @@ void ieee80211_rx_napi(struct ieee80211_hw *hw, struct ieee80211_sta *pubsta, goto drop; break; case RX_ENC_VHT: - if (WARN_ONCE(status->rate_idx > 9 || + if (WARN_ONCE(status->rate_idx > 11 || !status->nss || status->nss > 8, "Rate marked as a VHT rate but data is invalid: MCS: %d, NSS: %d\n", |