tech@,

on my debug about 40Mhz width for 11n I had spoted one more differences with
ath12k which worth to be delivered and tested as small dedicated step: avoid
hardcoded one RX and TX steram and use actual number of channels at that
device that matches ath12k behaviour.

Tested on my honor under ~30 minute load by iperf, no regression.

Ok?

Index: sys/dev/ic/qwz.c
===================================================================
RCS file: /home/cvs/src/sys/dev/ic/qwz.c,v
diff -u -p -r1.35 qwz.c
--- sys/dev/ic/qwz.c	25 May 2026 08:50:13 -0000	1.35
+++ sys/dev/ic/qwz.c	25 May 2026 16:07:26 -0000
@@ -21641,8 +21641,8 @@ qwz_mac_vdev_start_restart(struct qwz_so
 	arg.channel.max_reg_power = 20; /* XXX */
 	arg.channel.max_antenna_gain = 0; /* XXX */
 
-	arg.pref_tx_streams = 1;
-	arg.pref_rx_streams = 1;
+	arg.pref_tx_streams = sc->num_tx_chains;
+	arg.pref_rx_streams = sc->num_rx_chains;
 
 	arg.mbssid_flags = 0;
 	arg.mbssid_tx_vdev_id = 0;


-- 
wbr, Kirill