diff options
| -rw-r--r-- | package/kernel/mac80211/patches/subsys/327-mac80211-allow-non-standard-VHT-MCS-10-11.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/subsys/327-mac80211-allow-non-standard-VHT-MCS-10-11.patch b/package/kernel/mac80211/patches/subsys/327-mac80211-allow-non-standard-VHT-MCS-10-11.patch new file mode 100644 index 0000000000..7c68e75574 --- /dev/null +++ b/package/kernel/mac80211/patches/subsys/327-mac80211-allow-non-standard-VHT-MCS-10-11.patch @@ -0,0 +1,36 @@ +From: Ping-Ke Shih <pkshih@realtek.com> +Date: Mon, 3 Jan 2022 09:36:21 +0800 +Subject: [PATCH] mac80211: allow non-standard VHT MCS-10/11 + +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> +--- + +--- a/net/mac80211/rx.c ++++ b/net/mac80211/rx.c +@@ -4945,7 +4945,7 @@ void ieee80211_rx_list(struct ieee80211_ + 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", |