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 ddf5712..4e2eee0 100644 (file)
--- 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 ae12078..563fde7 100644 (file)
--- 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 d0942b0..e921619 100644 (file)
--- 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;