diff options
| author | Karthikeyan Periyasamy <quic_periyasa@quicinc.com> | 2024-05-03 13:34:37 +0300 |
|---|---|---|
| committer | Kalle Valo <quic_kvalo@quicinc.com> | 2024-05-03 16:12:14 +0300 |
| commit | acaa84009fade2ae80922861aa9464e89c9d3ef0 (patch) | |
| tree | 3bba85b68570bc50c0a192e8056d79de079004e7 /drivers/net/wireless/ath/ath12k/core.h | |
| parent | 9b4e5caaf5905edb7c184e8d14a9fab09f2f865b (diff) | |
wifi: ath12k: Add lock to protect the hardware state
Currently, hardware state is not protected across the reconfigure
operations. However, in single wiphy models, multiple radio/links is
exposed as a MAC hardware (ieee80211_hw) through the driver hardware
abstraction (ath12k_hw) layer. In such scenario, we need to protect
hardware state across the multiple radio/link at the driver hardware
abstraction (ath12k_hw) layer. Therefore, introduce a new mutex in
the ath12k_hw layer.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/20240425090307.3233434-4-quic_periyasa@quicinc.com
Diffstat (limited to 'drivers/net/wireless/ath/ath12k/core.h')
| -rw-r--r-- | drivers/net/wireless/ath/ath12k/core.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h index c4eb8b25398c..d833361948b7 100644 --- a/drivers/net/wireless/ath/ath12k/core.h +++ b/drivers/net/wireless/ath/ath12k/core.h @@ -636,11 +636,17 @@ struct ath12k { struct ath12k_hw { struct ieee80211_hw *hw; struct ath12k_base *ab; + + /* Protect the write operation of the hardware state ath12k_hw::state + * between hardware start<=>reconfigure<=>stop transitions. + */ + struct mutex hw_mutex; enum ath12k_hw_state state; bool regd_updated; bool use_6ghz_regd; u8 num_radio; + /* Keep last */ struct ath12k radio[] __aligned(sizeof(void *)); }; |