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mac80211: add config tweak for tx bursting when using VHT 

By default, set BE tx queue TXOP limit to 2.0 in the hostapd config
Many vendor drivers are doing similar things to boost throughput.
On MT7612 under ideal conditions, it improves tx throughput from 470 Mbit/s
to about 570 Mbit/s.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
(cherry-picked from commit 8650201f10)
openwrt-19.07
Felix Fietkau 2019-06-19 12:32:20 +02:00
parent dd4b8a24a1
commit 73d45c7378
1 changed files with 5 additions and 1 deletions
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6
package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
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@ -23,6 +23,7 @@ drv_mac80211_init_device_config() {
config_add_string path phy 'macaddr:macaddr'
config_add_string hwmode
config_add_string tx_burst
config_add_int beacon_int chanbw frag rts
config_add_int rxantenna txantenna antenna_gain txpower distance
config_add_boolean noscan ht_coex
@ -97,9 +98,10 @@ mac80211_hostapd_setup_base() {
[ "$auto_channel" -gt 0 ] && json_get_values channel_list channels
json_get_vars noscan ht_coex
json_get_values ht_capab_list ht_capab
json_get_values ht_capab_list ht_capab tx_burst
[ -n "$noscan" -a "$noscan" -gt 0 ] && hostapd_noscan=1
[ "$tx_burst" = 0 ] && tx_burst=
ieee80211n=1
ht_capab=
@ -229,6 +231,7 @@ mac80211_hostapd_setup_base() {
vht_link_adapt:3 \
vht160:2
set_default tx_burst 2.0
append base_cfg "ieee80211ac=1" "$N"
vht_cap=0
for cap in $(iw phy "$phy" info | awk -F "[()]" '/VHT Capabilities/ { print $2 }'); do
@ -310,6 +313,7 @@ mac80211_hostapd_setup_base() {
${channel:+channel=$channel}
${channel_list:+chanlist=$channel_list}
${hostapd_noscan:+noscan=1}
${tx_burst:+tx_queue_data2_burst=$tx_burst}
$base_cfg
EOF