From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f170.google.com (mail-pl1-f170.google.com [209.85.214.170]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BA57846549; Mon, 8 Jan 2024 14:30:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-pl1-f170.google.com with SMTP id d9443c01a7336-1d509222c11so2397425ad.1; Mon, 08 Jan 2024 06:30:09 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1704724209; x=1705329009; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=sVMqThbVP0Q8RE+595KzEmSzoEzPpkpeb2mdqe/54Po=; b=CSKjqIRpIVC32YXnPiIi9gEcDdvhzJhJUcIcv3c0KMpBjZKHbiIM1ffjg0Unje7sOI rVcQCeJu4F6cw7G9by8zUTTWKn5I157zDflfaSX6LOdTdYhMo6xWqUXXPuwKOuEYHwCq 0QTIROhOm4ydWCzyoaC3Mv1nMJpJaLEXfrAw9eozjLhHnSjMPs14auwJw7K6G4OT89NA pfqiWEg4SKlIf2aP9FikWq/lDadyn5tZCLAO7lMNn5ROaswUfw7fuCin/NkDYHsiAY1r v7Sjp1dJgZ3WQcEwLnUULoF9I6sPK7+dcvZ3BJ6a9eKEfp+Rjqi9NvQZylreAmjaoVgD VGKw== X-Gm-Message-State: AOJu0YzO5KHyV+39daqPPiszMyn4sW/NxE71ywY/X0IAL4lcyeTZ5Tam qMmKdtkaM24HKr8Tg+6VA8s= X-Google-Smtp-Source: AGHT+IE3fdqzVYISbL4ZtM/lxTCygtaE0GCar9x98h7e8R949MP4dVwbh+1fDeut8mKc+f/isMwbKQ== X-Received: by 2002:a17:902:ce81:b0:1d5:2197:46e9 with SMTP id f1-20020a170902ce8100b001d5219746e9mr1033721plg.117.1704724208990; Mon, 08 Jan 2024 06:30:08 -0800 (PST) Received: from localhost (fpd11144dd.ap.nuro.jp. [209.17.68.221]) by smtp.gmail.com with ESMTPSA id u13-20020a170902e5cd00b001d09c5424d4sm6321570plf.297.2024.01.08.06.30.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Jan 2024 06:30:08 -0800 (PST) Date: Mon, 8 Jan 2024 23:30:06 +0900 From: Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= To: Jianjun Wang Cc: Lorenzo Pieralisi , Rob Herring , Bjorn Helgaas , Matthias Brugger , AngeloGioacchino Del Regno , Ryder Lee , linux-pci@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, qizhong.cheng@mediatek.com, stable@vger.kernel.org Subject: Re: [PATCH v4] PCI: mediatek: Clear interrupt status before dispatching handler Message-ID: <20240108143006.GA2602112@rocinante> References: <20231211094923.31967-1-jianjun.wang@mediatek.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231211094923.31967-1-jianjun.wang@mediatek.com> Hello, > We found a failure when used iperf tool for wifi performance testing, > there are some MSIs received while clearing the interrupt status, > these MSIs cannot be serviced. > > The interrupt status can be cleared even the MSI status still remaining, > as an edge-triggered interrupts, its interrupt status should be cleared > before dispatching to the handler of device. Applied to controller/mediatek, thank you! [1/1] PCI: mediatek: Clear interrupt status before dispatching handler https://git.kernel.org/pci/pci/c/4fea201e110e Krzysztof