Received-SPF: pass (google.com: domain of linux-wireless+bounces-4981-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) client-ip=2604:1380:45d1:ec00::1;
Content-Type: text/plain; charset="utf-8"
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: Re: [PATCH] wifi: ath11k: do not process consecutive RDDM event
From: Kalle Valo <kvalo@kernel.org>
In-Reply-To: <20240111071406.14053-1-quic_bqiang@quicinc.com>
References: <20240111071406.14053-1-quic_bqiang@quicinc.com>
To: Baochen Qiang <quic_bqiang@quicinc.com>
Cc: <ath11k@lists.infradead.org>, <linux-wireless@vger.kernel.org>,
 <quic_bqiang@quicinc.com>
User-Agent: pwcli/0.1.1-git (https://github.com/kvalo/pwcli/) Python/3.11.2
Message-ID: <171094284861.3225057.1212406705882400621.kvalo@kernel.org>
Date: Wed, 20 Mar 2024 13:54:10 +0000 (UTC)

Baochen Qiang <quic_bqiang@quicinc.com> wrote:

> Currently we do reset for each RDDM event from MHI, however there are
> cases, see below log, that we get two or more consecutive events, and
> it is pointless to do reset for the subsequent ones. What's more, it
> makes reset process more likely to fail.
> 
> [ 1502.115876] ath11k_pci 0000:04:00.0: boot notify status reason MHI_CB_EE_RDDM
> [ 1502.115884] ath11k_pci 0000:04:00.0: firmware crashed: MHI_CB_EE_RDDM
> [ 1502.224041] ath11k_pci 0000:04:00.0: boot notify status reason MHI_CB_EE_RDDM
> [ 1502.224050] ath11k_pci 0000:04:00.0: firmware crashed: MHI_CB_EE_RDDM
> 
> Add a check to avoid reset again and again. This is done by tracking previous
> MHI status: if we receive a new RDDM event while the previous one is
> also the same, we treat it as duplicate and ignore it, because normally
> we should receive a MHI_CB_EE_MISSION_MODE event between them.
> 
> Tested-on: WCN6855 hw2.1 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23
> 
> Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
> Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>

There was a simple conflict in copyright year which I fixed:

https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git/commit/?h=pending&id=8d2bcb72053d955aebb8c398ebf2ad73afca5731

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20240111071406.14053-1-quic_bqiang@quicinc.com/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches