Bitterblue Smith <rtl8821cerfe2@xxxxxxxxx> wrote: > Sent: Friday, March 14, 2025 4:20 AM > RTL8814AU doesn't work well with SUPPORTS_AMSDU_IN_AMPDU. The RX speed > is noticeably lower and the VHT RX statistics are strange. Typical > values with SUPPORTS_AMSDU_IN_AMPDU: > > Reverse mode, remote host 192.168.0.1 is sending > [ 5] local 192.168.0.50 port 60710 connected to 192.168.0.1 port 5201 > [ ID] Interval Transfer Bitrate > [ 5] 0.00-1.00 sec 74.6 MBytes 626 Mbits/sec > [ 5] 1.00-2.00 sec 79.2 MBytes 665 Mbits/sec > [ 5] 2.00-3.00 sec 84.9 MBytes 712 Mbits/sec > [ 5] 3.00-4.00 sec 83.8 MBytes 703 Mbits/sec > [ 5] 4.00-5.00 sec 85.9 MBytes 720 Mbits/sec > [ 5] 5.00-6.00 sec 78.9 MBytes 662 Mbits/sec > [ 5] 6.00-7.00 sec 81.2 MBytes 682 Mbits/sec > [ 5] 7.00-8.00 sec 80.5 MBytes 675 Mbits/sec > [ 5] 8.00-9.00 sec 79.4 MBytes 666 Mbits/sec > [ 5] 9.00-10.00 sec 82.2 MBytes 689 Mbits/sec > [ 5] 10.00-11.00 sec 82.0 MBytes 688 Mbits/sec > [ 5] 11.00-12.00 sec 84.2 MBytes 707 Mbits/sec > [ 5] 12.00-13.00 sec 71.0 MBytes 596 Mbits/sec > [ 5] 13.00-14.00 sec 69.4 MBytes 582 Mbits/sec > [ 5] 14.00-15.00 sec 80.2 MBytes 673 Mbits/sec > [ 5] 15.00-16.00 sec 74.5 MBytes 625 Mbits/sec > > [Rx Counter]: > * CCA (CCK, OFDM, Total) = (0, 2455, 2455) > * False Alarm (CCK, OFDM, Total) = (0, 69, 69) > * CCK cnt (ok, err) = (0, 0) > * OFDM cnt (ok, err) = (1239, 2) > * HT cnt (ok, err) = (0, 0) > * VHT cnt (ok, err) = (21, 12109) > > The "VHT ok" number is not believable. Since these counters are from BB, I don't doubt this is USB specific problem. But really not sure what BB happens on receiving long packets. So, let's take this workaround that improves over 100Mbits/sec. > > And without SUPPORTS_AMSDU_IN_AMPDU: > > Reverse mode, remote host 192.168.0.1 is sending > [ 5] local 192.168.0.50 port 50030 connected to 192.168.0.1 port 5201 > [ ID] Interval Transfer Bitrate > [ 5] 0.00-1.00 sec 70.5 MBytes 591 Mbits/sec > [ 5] 1.00-2.00 sec 86.9 MBytes 729 Mbits/sec > [ 5] 2.00-3.00 sec 98.6 MBytes 827 Mbits/sec > [ 5] 3.00-4.00 sec 97.4 MBytes 817 Mbits/sec > [ 5] 4.00-5.00 sec 98.6 MBytes 827 Mbits/sec > [ 5] 5.00-6.00 sec 96.9 MBytes 813 Mbits/sec > [ 5] 6.00-7.00 sec 98.2 MBytes 824 Mbits/sec > [ 5] 7.00-8.00 sec 98.0 MBytes 822 Mbits/sec > [ 5] 8.00-9.00 sec 99.9 MBytes 838 Mbits/sec > [ 5] 9.00-10.00 sec 99.2 MBytes 833 Mbits/sec > [ 5] 10.00-11.00 sec 98.0 MBytes 822 Mbits/sec > [ 5] 11.00-12.00 sec 98.1 MBytes 823 Mbits/sec > [ 5] 12.00-13.00 sec 97.0 MBytes 814 Mbits/sec > [ 5] 13.00-14.00 sec 98.2 MBytes 824 Mbits/sec > [ 5] 14.00-15.00 sec 98.5 MBytes 826 Mbits/sec > [ 5] 15.00-16.00 sec 97.4 MBytes 817 Mbits/sec > > [Rx Counter]: > * CCA (CCK, OFDM, Total) = (0, 3860, 3860) > * False Alarm (CCK, OFDM, Total) = (0, 2, 2) > * CCK cnt (ok, err) = (0, 0) > * OFDM cnt (ok, err) = (1486, 0) > * HT cnt (ok, err) = (0, 0) > * VHT cnt (ok, err) = (7399, 9118) > > Add a new member "amsdu_in_ampdu" in struct rtw_chip_info and use it > to set SUPPORTS_AMSDU_IN_AMPDU only for the other chips. > > Signed-off-by: Bitterblue Smith <rtl8821cerfe2@xxxxxxxxx> Acked-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
