From patchwork Wed Feb 9 06:00:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wen Gong X-Patchwork-Id: 542109 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4CA47C433F5 for ; Wed, 9 Feb 2022 06:08:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236201AbiBIGGE (ORCPT ); Wed, 9 Feb 2022 01:06:04 -0500 Received: from gmail-smtp-in.l.google.com ([23.128.96.19]:51424 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233741AbiBIGAs (ORCPT ); Wed, 9 Feb 2022 01:00:48 -0500 Received: from alexa-out-sd-02.qualcomm.com (alexa-out-sd-02.qualcomm.com [199.106.114.39]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7155CC02C45B for ; Tue, 8 Feb 2022 22:00:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1644386451; x=1675922451; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=vqWY9/rbKVCqvD3Eg6vHChDIW5QC7U0HRyQcATZeaPw=; b=g64PpwwkVop+yv+uUy2wXc+i9GGt4i68Jm7u1diro+6wZkVrHzjMQ/Us ozCv6EUFzA6U+nWxs+qjqZz/Qco6S34Zk20RX8QUvEztlLE3gqloybVL1 eBzKkVGT6lHTSr2QU3WzH8L5EvscYlUsKfyTPyDyG2GBH4n9QH47OOD9O M=; Received: from unknown (HELO ironmsg04-sd.qualcomm.com) ([10.53.140.144]) by alexa-out-sd-02.qualcomm.com with ESMTP; 08 Feb 2022 22:00:38 -0800 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg04-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Feb 2022 22:00:38 -0800 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Tue, 8 Feb 2022 22:00:36 -0800 Received: from wgong-HP3-Z230-SFF-Workstation.qca.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Tue, 8 Feb 2022 22:00:35 -0800 From: Wen Gong To: CC: , Subject: [PATCH v6 6/6] ath11k: Add hw-restart option to simulate_fw_crash Date: Wed, 9 Feb 2022 01:00:12 -0500 Message-ID: <20220209060012.32478-7-quic_wgong@quicinc.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220209060012.32478-1-quic_wgong@quicinc.com> References: <20220209060012.32478-1-quic_wgong@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org 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 --- drivers/net/wireless/ath/ath11k/debugfs.c | 4 ++++ 1 file changed, 4 insertions(+) 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;