2023-03-16 04:12:04

by Baochen Qiang

Subject: [PATCH] wifi: ath12k: 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: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4

Signed-off-by: Baochen Qiang <[email protected]>
---
drivers/net/wireless/ath/ath12k/wmi.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c
index 3e6991120e53..af910296c41e 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -2438,6 +2438,9 @@ int ath12k_wmi_send_scan_chan_list_cmd(struct ath12k *ar,
if (channel_arg->psc_channel)
chan_info->info |= cpu_to_le32(WMI_CHAN_INFO_PSC);

+ if (channel_arg->dfs_set)
+ chan_info->info |= cpu_to_le32(WMI_CHAN_INFO_DFS);
+
chan_info->info |= le32_encode_bits(channel_arg->phy_mode,
WMI_CHAN_INFO_MODE);
*reg1 |= le32_encode_bits(channel_arg->minpower,

base-commit: 3df3715e556027e94246b2cb30986563362a65f4
--
2.25.1

2023-03-22 10:14:39

by Kalle Valo

Subject: Re: [PATCH] wifi: ath12k: 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: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
>
> Signed-off-by: Baochen Qiang <[email protected]>
> Signed-off-by: Kalle Valo <[email protected]>

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

4c26033d75e4 wifi: ath12k: 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