2021-10-11 07:04:06

by Baochen Qiang

[permalink] [raw]
Subject: [PATCH] ath11k: Identify DFS channel when sending scan channel list command

WMI_CHAN_INFO_DFS flag should be set when configuring a DFS channel
included in scan channel list. Without it, firmware will not send a
probe request frame which is needed in connection to an AP configured
with hidden SSID/network_id. So fix this to allow probe request frames
to be sent in cases where a beacon frame has been seen on the channel
first.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Baochen Qiang <[email protected]>
---
drivers/net/wireless/ath/ath11k/wmi.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 2d0acfb748cf..9781b69515dd 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -2371,6 +2371,8 @@ int ath11k_wmi_send_scan_chan_list_cmd(struct ath11k *ar,
chan_info->info |= WMI_CHAN_INFO_QUARTER_RATE;
if (tchan_info->psc_channel)
chan_info->info |= WMI_CHAN_INFO_PSC;
+ if (tchan_info->dfs_set)
+ chan_info->info |= WMI_CHAN_INFO_DFS;

chan_info->info |= FIELD_PREP(WMI_CHAN_INFO_MODE,
tchan_info->phy_mode);
--
2.25.1


2021-10-13 05:50:21

by Kalle Valo

[permalink] [raw]
Subject: Re: [PATCH] ath11k: Identify DFS channel when sending scan channel list command

Baochen Qiang <[email protected]> wrote:

> WMI_CHAN_INFO_DFS flag should be set when configuring a DFS channel
> included in scan channel list. Without it, firmware will not send a
> probe request frame which is needed in connection to an AP configured
> with hidden SSID/network_id. So fix this to allow probe request frames
> to be sent in cases where a beacon frame has been seen on the channel
> first.
>
> Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
>
> Signed-off-by: Baochen Qiang <[email protected]>
> Signed-off-by: Kalle Valo <[email protected]>

Patch applied to ath-next branch of ath.git, thanks.

8cd5c0847160 ath11k: Identify DFS channel when sending scan channel list command

--
https://patchwork.kernel.org/project/linux-wireless/patch/[email protected]/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches