Commit 78e3e609 authored by Wen Gong's avatar Wen Gong Committed by Kalle Valo
Browse files

ath11k: Add hw-restart option to simulate_fw_crash 



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: default avatarWen Gong <quic_wgong@quicinc.com>
Signed-off-by: default avatarKalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220228064606.8981-4-quic_wgong@quicinc.com
parent 38194f3a

drivers/net/wireless/ath/ath11k/debugfs.c

+4 −0
Original line number Diff line number Diff line
@@ -596,6 +596,10 @@ 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;