Return-path: Received: from smtp.codeaurora.org ([198.145.29.96]:38552 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726888AbeG3TgO (ORCPT ); Mon, 30 Jul 2018 15:36:14 -0400 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Subject: Re: [PATCH] ath10k: add debugfs file warm_hw_reset From: Kalle Valo In-Reply-To: <1531920860-3236-1-git-send-email-mkenna@codeaurora.org> References: <1531920860-3236-1-git-send-email-mkenna@codeaurora.org> To: Maharaja Kennadyrajan Cc: ath10k@lists.infradead.org, linux-wireless@vger.kernel.org, Maharaja Kennadyrajan Message-Id: <20180730180005.B77B360B1A@smtp.codeaurora.org> (sfid-20180730_200048_116741_A7541AAB) Date: Mon, 30 Jul 2018 18:00:05 +0000 (UTC) Sender: linux-wireless-owner@vger.kernel.org List-ID: Maharaja Kennadyrajan wrote: > Debugfs support to do hardware warm reset with WMI command > WMI_PDEV_PARAM_PDEV_RESET for 10.4 and 10.2.4(if wmi > service is enabled in the firmware for backward compatibility). > > This change is purely for debugging purpose when hardware hangs/mutes. > > This hardware reset won't affect the connectivity but there will be small > pause in data traffic. Here we are doing BB/MAC level reset and hence > whenever the BB/MAC watchdog is triggered, it does a hardware_chip_reset. > So the target will be in the active state. > > Below command used to warm reset the hardware. > echo 1 > /sys/kernel/debug/ieee80211/phyX/ath10k/warm_hw_reset > > Tested in QCA988X with firmware ver 10.2.4.70.45 > Tested in QCA4019 with firmware ver 10.4-3.2.1.1-00011 > > Signed-off-by: Maharaja Kennadyrajan > Signed-off-by: Kalle Valo Patch applied to ath-next branch of ath.git, thanks. db251d7df457 ath10k: add debugfs file warm_hw_reset -- https://patchwork.kernel.org/patch/10532465/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches