From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 31 Mar 2015 11:03:48 +0000 (+0000)
Subject: ath10k: use scan burst for hw roc
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=dbd3f9f37ed217653ffe46368766a8fcdca5fcfb;p=linux-beck.git

ath10k: use scan burst for hw roc

This improves chances of getting onto a foreign
channel and thus makes P2P a bit more reliable.

Without scan burst it was possible for firmware to
not switch to foreign channel resulting in "failed
to switch to channel for roc scan" warning. This
would also effectively fail some offchan tx
requests and lead to P2P find/connect taking
longer. This could be observed when other vifs
were running/busy, e.g. with P2P GO.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index ddf5712835e3..4e2eee01a4c6 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -5435,6 +5435,7 @@ static int ath10k_remain_on_channel(struct ieee80211_hw *hw,
 	arg.max_scan_time = scan_time_msec;
 	arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
 	arg.scan_ctrl_flags |= WMI_SCAN_FILTER_PROBE_REQ;
+	arg.burst_duration_ms = duration;
 
 	ret = ath10k_start_scan(ar, &arg);
 	if (ret) {
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index ae120782e737..563fde73623c 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -1406,7 +1406,7 @@ ath10k_wmi_tlv_op_gen_start_scan(struct ath10k *ar,
 	cmd = (void *)tlv->value;
 
 	ath10k_wmi_put_start_scan_common(&cmd->common, arg);
-	cmd->burst_duration_ms = __cpu_to_le32(0);
+	cmd->burst_duration_ms = __cpu_to_le32(arg->burst_duration_ms);
 	cmd->num_channels = __cpu_to_le32(arg->n_channels);
 	cmd->num_ssids = __cpu_to_le32(arg->n_ssids);
 	cmd->num_bssids = __cpu_to_le32(arg->n_bssids);
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index d0942b0a4326..e9216192917f 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -2169,6 +2169,7 @@ struct wmi_start_scan_arg {
 	u32 max_scan_time;
 	u32 probe_delay;
 	u32 scan_ctrl_flags;
+	u32 burst_duration_ms;
 
 	u32 ie_len;
 	u32 n_channels;