[openwrt/openwrt] mac80211: set beamformer/beamformee number of antennas in VHT caps
LEDE Commits
lede-commits at lists.infradead.org
Tue Nov 23 09:44:15 PST 2021
nbd pushed a commit to openwrt/openwrt.git, branch openwrt-21.02:
https://git.openwrt.org/c20f4e24bd12f8bb4a6d35f0199ae1695469859d
commit c20f4e24bd12f8bb4a6d35f0199ae1695469859d
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Mon Nov 22 13:04:03 2021 +0100
mac80211: set beamformer/beamformee number of antennas in VHT caps
Without this, beamforming is probably not working
Signed-off-by: Felix Fietkau <nbd at nbd.name>
(cherry-picked from commit e2c4998f6dca7d9b74a8b01762040ff2c5e38fd7)
---
.../mac80211/files/lib/netifd/wireless/mac80211.sh | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
index 4828951bab..d69667bf8c 100644
--- a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
+++ b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
@@ -53,6 +53,8 @@ drv_mac80211_init_device_config() {
he_spr_sr_control \
he_twt_required
config_add_int \
+ beamformer_antennas \
+ beamformee_antennas \
vht_max_a_mpdu_len_exp \
vht_max_mpdu \
vht_link_adapt \
@@ -294,6 +296,8 @@ mac80211_hostapd_setup_base() {
mu_beamformee:1 \
vht_txop_ps:1 \
htc_vht:1 \
+ beamformee_antennas:4 \
+ beamformer_antennas:4 \
rx_antenna_pattern:1 \
tx_antenna_pattern:1 \
vht_max_a_mpdu_len_exp:7 \
@@ -334,6 +338,18 @@ mac80211_hostapd_setup_base() {
RX-STBC-123:0x700:0x300:1 \
RX-STBC-1234:0x700:0x400:1 \
+ [ "$(($vht_cap & 0x800))" -gt 0 -a "$su_beamformer" -gt 0 ] && {
+ cap_ant="$(( ( ($vht_cap >> 16) & 3 ) + 1 ))"
+ [ "$cap_ant" -gt "$beamformer_antennas" ] && cap_ant="$beamformer_antennas"
+ [ "$cap_ant" -gt 1 ] && vht_capab="$vht_capab[SOUNDING-DIMENSION-$cap_ant]"
+ }
+
+ [ "$(($vht_cap & 0x1000))" -gt 0 -a "$su_beamformee" -gt 0 ] && {
+ cap_ant="$(( ( ($vht_cap >> 13) & 3 ) + 1 ))"
+ [ "$cap_ant" -gt "$beamformee_antennas" ] && cap_ant="$beamformee_antennas"
+ [ "$cap_ant" -gt 1 ] && vht_capab="$vht_capab[BF-ANTENNA-$cap_ant]"
+ }
+
# supported Channel widths
vht160_hw=0
[ "$(($vht_cap & 12))" -eq 4 -a 1 -le "$vht160" ] && \
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