[][MAC80211][core][allow non standard VHT MCS 10/11]
[Description]
Add VHT MCS 10/11
[Release-log]
N/A
Change-Id: I8037ae0eb935fe6125116e96ff241d34036b725d
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5732531
diff --git a/openwrt_patches-21.02/415-master-mac80211-allow-non-standard-VHT-MCS-10-11.patch b/openwrt_patches-21.02/415-master-mac80211-allow-non-standard-VHT-MCS-10-11.patch
new file mode 100644
index 0000000..8296ed0
--- /dev/null
+++ b/openwrt_patches-21.02/415-master-mac80211-allow-non-standard-VHT-MCS-10-11.patch
@@ -0,0 +1,62 @@
+From ca21bb98773235bc7a50f7bcc1ed990f158f7dbd Mon Sep 17 00:00:00 2001
+From: Peter Chiu <chui-hao.chiu@mediatek.com>
+Date: Mon, 14 Mar 2022 12:28:13 +0800
+Subject: [PATCH] mac80211: allow non-standard VHT MCS-10/11
+
+Change-Id: I75f6b33f1f0ea17faff63ba066e6896ac4bc849a
+---
+ ...211-allow-non-standard-VHT-MCS-10-11.patch | 41 +++++++++++++++++++
+ 1 file changed, 41 insertions(+)
+ create mode 100644 package/kernel/mac80211/patches/subsys/323-mac80211-allow-non-standard-VHT-MCS-10-11.patch
+
+diff --git a/package/kernel/mac80211/patches/subsys/323-mac80211-allow-non-standard-VHT-MCS-10-11.patch b/package/kernel/mac80211/patches/subsys/323-mac80211-allow-non-standard-VHT-MCS-10-11.patch
+new file mode 100644
+index 00000000..d9050c1d
+--- /dev/null
++++ b/package/kernel/mac80211/patches/subsys/323-mac80211-allow-non-standard-VHT-MCS-10-11.patch
+@@ -0,0 +1,41 @@
++From 04be6d337d37400ad5b3d5f27ca87645ee5a18a3 Mon Sep 17 00:00:00 2001
++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>
++---
++ net/mac80211/rx.c | 2 +-
++ 1 file changed, 1 insertion(+), 1 deletion(-)
++
++diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
++index fec82f7c2fa6f..93680af62c47d 100644
++--- a/net/mac80211/rx.c
+++++ b/net/mac80211/rx.c
++@@ -4929,7 +4929,7 @@ void ieee80211_rx_list(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",
+\ No newline at end of file
+--
+2.18.0
+