diff mbox series

[v6,6/6] ath11k: Add hw-restart option to simulate_fw_crash

Message ID 20220209060012.32478-7-quic_wgong@quicinc.com
State New
Headers show
Series ath11k: add feature for device recovery | expand

Commit Message

Wen Gong Feb. 9, 2022, 6 a.m. UTC 
Add hw-restart to directly restart wlan. Like UTF mode start it will
restart hardware and download firmware again.

Usage:
1. Run command:
   echo hw-restart > /sys/kernel/debug/ath11k/qca6390\ hw2.0/simulate_fw_crash
   echo hw-restart > /sys/kernel/debug/ath11k/wcn6855\ hw2.0/simulate_fw_crash
2. wlan will be restart and do recovery process and success.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
---
 drivers/net/wireless/ath/ath11k/debugfs.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/wireless/ath/ath11k/debugfs.c b/drivers/net/wireless/ath/ath11k/debugfs.c
index c0ebdb1262f0..7375defb0f23 100644
--- a/drivers/net/wireless/ath/ath11k/debugfs.c
+++ b/drivers/net/wireless/ath/ath11k/debugfs.c
@@ -557,6 +557,10 @@  static ssize_t ath11k_write_simulate_fw_crash(struct file *file,
 		ret = ath11k_wmi_force_fw_hang_cmd(ar,
 						   ATH11K_WMI_FW_HANG_ASSERT_TYPE,
 						   ATH11K_WMI_FW_HANG_DELAY);
+	} else if (!strcmp(buf, "hw-restart")) {
+		ath11k_info(ab, "user requested hw restart\n");
+		queue_work(ab->workqueue_aux, &ab->reset_work);
+		ret = 0;
 	} else {
 		ret = -EINVAL;
 		goto exit;