| Message ID | 20250409-ath12k-wcn7850-mlo-support-v2-2-3801132ca2c3@quicinc.com (mailing list archive) |
|---|---|
| State | Under Review |
| Delegated to: | Jeff Johnson |
| Headers | show |
| Series | wifi: ath12k: support MLO for WCN7850 | expand |
diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h index e8d2a0c859f6260d48c4c636793cf3a24c1c61b6..eebfb20cb089db0ce126ecf7f658bb15861d38c0 100644 --- a/drivers/net/wireless/ath/ath12k/core.h +++ b/drivers/net/wireless/ath/ath12k/core.h @@ -1085,6 +1085,7 @@ struct ath12k_base { size_t m3_len; DECLARE_BITMAP(fw_features, ATH12K_FW_FEATURE_COUNT); + bool fw_features_valid; } fw; const struct hal_rx_ops *hal_rx_ops; diff --git a/drivers/net/wireless/ath/ath12k/fw.c b/drivers/net/wireless/ath/ath12k/fw.c index af8b87ca4ccbe748974d17955397b4b23b52e8a8..5ac497f80cad8718fff5979f2a9cdd9116c7d01e 100644 --- a/drivers/net/wireless/ath/ath12k/fw.c +++ b/drivers/net/wireless/ath/ath12k/fw.c @@ -99,6 +99,8 @@ static int ath12k_fw_request_firmware_api_n(struct ath12k_base *ab, __set_bit(i, ab->fw.fw_features); } + ab->fw.fw_features_valid = true; + ath12k_dbg_dump(ab, ATH12K_DBG_BOOT, "features", "", ab->fw.fw_features, sizeof(ab->fw.fw_features)); @@ -172,5 +174,5 @@ void ath12k_fw_unmap(struct ath12k_base *ab) bool ath12k_fw_feature_supported(struct ath12k_base *ab, enum ath12k_fw_features feat) { - return test_bit(feat, ab->fw.fw_features); + return ab->fw.fw_features_valid && test_bit(feat, ab->fw.fw_features); }
Currently fw_features is used to check if a specific feature is supported or not: if the feature bit is set the feature is believed to be supported, otherwise not supported. Since fw_features is populated only when using firmware API-2, and by default it is zero, in case of API-1 such as WCN7850 firmware it is possible that a feature is not enabled by host while actually firmware supports it. To avoid this, add a new flag indicating whether fw_features has been ever populated or not, and only when that flag is true we choose to believe fw_features. This benefits firmware MLO capability validation in an upcoming patch. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00209-QCAHKSWPL_SILICONZ-1 Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> --- drivers/net/wireless/ath/ath12k/core.h | 1 + drivers/net/wireless/ath/ath12k/fw.c | 4 +++- 2 files changed, 4 insertions(+), 1 deletion(-)