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37 lines
1.4 KiB
Diff
37 lines
1.4 KiB
Diff
From 78e3e6094220a71504e7136c42b49fc8ed3a72b4 Mon Sep 17 00:00:00 2001
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From: Wen Gong <quic_wgong@quicinc.com>
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Date: Mon, 21 Mar 2022 13:17:03 +0200
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Subject: [PATCH] ath11k: Add hw-restart option to simulate_fw_crash
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Add hw-restart to directly restart wlan. Like UTF mode start it will
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restart hardware and download firmware again.
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Usage:
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1. Run command:
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echo hw-restart > /sys/kernel/debug/ath11k/qca6390\ hw2.0/simulate_fw_crash
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echo hw-restart > /sys/kernel/debug/ath11k/wcn6855\ hw2.0/simulate_fw_crash
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2. wlan will be restart and do recovery process and success.
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Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2
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Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
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Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
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Link: https://lore.kernel.org/r/20220228064606.8981-4-quic_wgong@quicinc.com
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---
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drivers/net/wireless/ath/ath11k/debugfs.c | 4 ++++
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1 file changed, 4 insertions(+)
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--- a/drivers/net/wireless/ath/ath11k/debugfs.c
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+++ b/drivers/net/wireless/ath/ath11k/debugfs.c
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@@ -596,6 +596,10 @@ static ssize_t ath11k_write_simulate_fw_
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ret = ath11k_wmi_force_fw_hang_cmd(ar,
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ATH11K_WMI_FW_HANG_ASSERT_TYPE,
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ATH11K_WMI_FW_HANG_DELAY);
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+ } else if (!strcmp(buf, "hw-restart")) {
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+ ath11k_info(ab, "user requested hw restart\n");
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+ queue_work(ab->workqueue_aux, &ab->reset_work);
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+ ret = 0;
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} else {
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ret = -EINVAL;
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goto exit;
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