Post by Michal KaziorPost by Ben GreearPost by Ben GreearPost by Ben GreearHas anyone tried this? Looks like hostapd has the ability to set the
feature flags, but I am not sure if it is really working in ath10k?
vht_capab=[RXLDPC][SHORT-GI-80][TX-STBC-2BY1][SU-BEAMFORMER][SU-BEAMFORMEE][MU-BEAMFORMER][RX-ANTENNA-PATTERN][TX-ANTENNA-PATTERN][BF-ANTENNA-4][MAX-MPDU-11454][RX-STBC-1][MAX-A-MPDU-LEN-EXP7]
The SU-, MU- and BF- are the required part only I think.
Post by Ben GreearDo you actually need anything other than standard whip antenna to
allow this to function properly?
I don't think. FWIW Make sure the antennas are reasonably set
up/separated from each other. If you cram them too tight/randomly
beamforming won't work efficiently. I had problem with client antennas
being too close to each other and lying flat on a table (I than made a
foam-stand and put them a few cm apart) so the same thing must apply
to AP as well.
Post by Ben GreearWhat about station mode?
Works as well. Both on QCA99XX and QCA9377.
Thanks for the info. How did you determine that it actually worked?
Empirically. If you get 600mbps UDP to two 1x1 clients it works :)
Also, the rx bitrate on the receiving ath10k end will be kind of wierd
(there's currently no way to decode MU ratesets on Rx because group
ids are managed in firmware).
So, I configured 3 systems: 1 is AP, two are acting as stations.
All are 9980, but the two station systems are forced to act like
1x1.
Single station download is about 270Mbps over-the-air. But, when I
add the second station, then total over-the-air stays at about 270Mbps.
So, I guess mu-mimo is not actually working for me.
My hostapd config looks like this (below). Does it look right? Do I need something
special in wpa_supplicant config on the station side?
interface=vap0
driver=nl80211
logger_syslog=-1
logger_syslog_level=2
logger_stdout=-1
logger_stdout_level=2
ctrl_interface=/var/run/hostapd
ctrl_interface_group=0
ssid=wave2-2-ssid
bssid=04:f0:21:56:6d:20
country_code=US
ieee80211d=0
ieee80211h=0
ieee80211w=0
hw_mode=a
ieee80211n=1
ieee80211ac=1
beacon_int=240
dtim_period=2
max_num_sta=2007
rts_threshold=2347
preamble=0
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
# Enable HT modes if you want 300Mbps+ throughput.
#ht_capab=[HT20][HT40-][HT40+][GF][SHORT-GI-20][SHORT-GI-40]
# [TX-STBC][RX-STBC123][MAX-AMSDU-7935][DSSS_CCK-40][PSMP][LSIG-TXOP-PROT]
ht_capab=[HT20][HT40+][SHORT-GI-40][SHORT-GI-20]
vht_capab=[MAX-MPDU-11454][RXLDPC][TX-STBC-2BY1][RX-STBC-1][MAX-A-MPDU-LEN-EXP0][RX-ANTENNA-PATTERN][TX-ANTENNA-PATTERN][SU-BEAMFORMER][SU-BEAMFORMEE][MU-BEAMFORMER][SHORT-GI-80]
wmm_enabled=1
wmm_ac_bk_cwmin=4
wmm_ac_bk_cwmax=10
wmm_ac_bk_aifs=7
wmm_ac_bk_txop_limit=0
wmm_ac_bk_acm=0
wmm_ac_be_aifs=3
wmm_ac_be_cwmin=4
wmm_ac_be_cwmax=10
wmm_ac_be_txop_limit=0
wmm_ac_be_acm=0
wmm_ac_vi_aifs=2
wmm_ac_vi_cwmin=3
wmm_ac_vi_cwmax=4
wmm_ac_vi_txop_limit=94
wmm_ac_vi_acm=0
wmm_ac_vo_aifs=2
wmm_ac_vo_cwmin=2
wmm_ac_vo_cwmax=3
wmm_ac_vo_txop_limit=47
wmm_ac_vo_acm=0
### TX queue parameters
tx_queue_data3_aifs=7
tx_queue_data3_cwmin=15
tx_queue_data3_cwmax=1023
tx_queue_data3_burst=0
tx_queue_data2_aifs=3
tx_queue_data2_cwmin=15
tx_queue_data2_cwmax=63
tx_queue_data2_burst=0
tx_queue_data1_aifs=1
tx_queue_data1_cwmin=7
tx_queue_data1_cwmax=15
tx_queue_data1_burst=3.0
tx_queue_data0_aifs=1
tx_queue_data0_cwmin=3
tx_queue_data0_cwmax=7
tx_queue_data0_burst=1.5
vht_oper_centr_freq_seg0_idx=155
vht_oper_chwidth=1
channel=149
supported_rates=60 90 120 180 240 360 480 540
ieee8021x=0
eapol_key_index_workaround=0
eap_server=0
own_ip_addr=127.0.0.1
wpa=2
wpa_pairwise=TKIP CCMP
wpa_passphrase=wave2-passwd
wpa_key_mgmt=WPA-PSK WPA-PSK-SHA256
# Error emulation settings.
ignore_probe_probability=0.000000
ignore_auth_probability=0.000000
ignore_assoc_probability=0.000000
ignore_reassoc_probability=0.000000
corrupt_gtk_rekey_mic_probability=0.000000
no_pri_sec_switch=1
Thanks,
Ben
--
Ben Greear <***@candelatech.com>
Candela Technologies Inc http://www.candelatech.com