| Message ID | 20220103013623.17052-1-pkshih@realtek.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v2,1/3] mac80211: allow non-standard VHT MCS-10/11 | expand |
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 0544563ede522..d2e8b84ed2836 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -4924,7 +4924,7 @@ 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",
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> --- v2: allow VHT MCS-10/11 in mac80211. v1 doesn't have this. --- net/mac80211/rx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)