* [PATCH v3] ath11k: Fix downlink MU-MIMO
@ 2019-05-01 2:41 Miles Hu
2019-05-06 13:07 ` Kalle Valo
0 siblings, 1 reply; 2+ messages in thread
From: Miles Hu @ 2019-05-01 2:41 UTC (permalink / raw)
To: ath11k; +Cc: Miles Hu
In vdev start command, prefer tx and rx streams are mandatory to enable DL MU-MIMO.
Tested only on 11ac mode.
Signed-off-by: Miles Hu <milehu@codeaurora.org>
---
V2:
- remove 11ac mode from the subject.
V3:
- clarify the fix for downlink mu-mimo and mention the consequence of not set the
value in the comment.
drivers/net/wireless/ath/ath11k/mac.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index ddb8beb..3f888c0 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -3863,6 +3863,9 @@ ath11k_mac_vdev_start_restart(struct ath11k_vif *arvif,
arg.channel.max_reg_power = chandef->chan->max_reg_power * 2;
arg.channel.max_antenna_gain = chandef->chan->max_antenna_gain * 2;
+ arg.pref_tx_streams = ar->num_tx_chains;
+ arg.pref_rx_streams = ar->num_rx_chains;
+
if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
arg.ssid = arvif->u.ap.ssid;
arg.ssid_len = arvif->u.ap.ssid_len;
--
2.7.4
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2019-05-01 2:41 [PATCH v3] ath11k: Fix downlink MU-MIMO Miles Hu
2019-05-06 13:07 ` Kalle Valo
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