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ath11k: Reconfigure hardware rate for WCN6855 after vdev is started

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There is an issue that WCN6855 tries to connect to an AP using
a hardware rate of 1Mb/s , even though the AP has announced
expected rates as [24, 36, 48, 54] in Probe Response frame.

The reason is that WCN6855 firmware clears hardware rate info
of management frames when vdev starts and uses 1Mb/s as default.
To solve it, reconfigure the rate after vdev is started.

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

Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220112025400.2222-1-quic_bqiang@quicinc.com
This commit is contained in:
Baochen Qiang
2022-01-12 10:54:00 +08:00
committed by Kalle Valo
parent a063b650ce
commit dc7ff75690
2 changed files with 19 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/wireless/ath/ath11k/core.h
View File

@@ -603,6 +603,7 @@ struct ath11k {
struct completion finish_11d_ch_list;
bool pending_11d;
bool regdom_set_by_user;
int hw_rate_code;
};
struct ath11k_band_cap {

18
drivers/net/wireless/ath/ath11k/mac.c
View File

@@ -2862,6 +2862,11 @@ static void ath11k_recalculate_mgmt_rate(struct ath11k *ar,
if (ret)
ath11k_warn(ar->ab, "failed to set mgmt tx rate %d\n", ret);
/* For WCN6855, firmware will clear this param when vdev starts, hence
* cache it here so that we can reconfigure it once vdev starts.
*/
ar->hw_rate_code = hw_rate_code;
vdev_param = WMI_VDEV_PARAM_BEACON_RATE;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, vdev_param,
hw_rate_code);
@@ -6960,6 +6965,19 @@ static int ath11k_start_vdev_delay(struct ieee80211_hw *hw,
return ret;
}
/* Reconfigure hardware rate code since it is cleared by firmware.
*/
if (ar->hw_rate_code > 0) {
u32 vdev_param = WMI_VDEV_PARAM_MGMT_RATE;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, vdev_param,
ar->hw_rate_code);
if (ret) {
ath11k_warn(ar->ab, "failed to set mgmt tx rate %d\n", ret);
return ret;
}
}
if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR) {
ret = ath11k_wmi_vdev_up(ar, arvif->vdev_id, 0, ar->mac_addr);
if (ret) {