From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f174.google.com (mail-il1-f174.google.com [209.85.166.174]) (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 54A8778C93; Fri, 28 Jun 2024 22:00:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.174 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719612018; cv=none; b=PaSi1jshpn0reDls6A4rfk8oBPYhJZlWWVTwgsAqYgi4WrXKt0KBnn+b4TSq3jyI9KvMHyFNEpTUEvLS7aXmMHahJFqnsq3CdcBRy8+0Au+CaAnozdFFtNg9W7a5349JDi3+F9+mxyiT3xaJjhsWUxieV57SLiJDedwzJnxtJXE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719612018; c=relaxed/simple; bh=kvDbU/XezxoBQjp8rwunXhYbw8UYN4B5gt0JlVvCgbI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=uTtnU/0AQ/hmjaRa6FOQ2gOQ46wSIuRD0ig5rl7BlqxZjK/jQlXGrJsLzMUrrDmtQHqeAnHmccoM5iB/sogZfNOmsQ6k+TIKR4RILegkMf0SY8XQPBAHvssNu9Fsogy8R8Nh2HnHlXVzDLrhpnZNvbY74feQi787jJP7FoH2FQk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.com; spf=pass smtp.mailfrom=gmail.com; arc=none smtp.client-ip=209.85.166.174 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-il1-f174.google.com with SMTP id e9e14a558f8ab-3760121ad45so4829135ab.0; Fri, 28 Jun 2024 15:00:17 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1719612016; x=1720216816; 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=rBbQvvIs93uOLOxrTo3qyREYhoURV2aSzjNHb1QtPU8=; b=HikfdgZT++oKmuDj4bszFL4UXHKjzE+mMAHi3Xw2I0vqAFp2bxEbse+6NQFfIKD/9/ fzCMjs9PngE4mFQ50887V9miVhfNWlmlWlz6JIXPG73LEVTIKZPP0qtse7ccIG04SxrN G+IaNG7cO9yBYhW6bHbpPJe1FTfCxXACGjkfPhsQClIk2LN/tXv+TLA1o45Iifyzs5X5 CUxAP5rYDhEftBvNZC6UEOA4B6LZPDxJ2wwm7yVT6721MPLyGnqHeSQlNShvSKxUrJmV LlzBq2wT17BZ+HSZKrl6W/Lpl/rpI71PQxzhV+wRbviP7eP8RSg4e3MPPHbSsX5LdMvu Ja2w== X-Forwarded-Encrypted: i=1; AJvYcCX1zdFq16y1K9ZdK96ijxsiCxOqHuQg/K7JDilFVNdc2miVd5xFVb/URlYjzpm+DEMqXPDPsndeQ2vDUEDiljwUfQEpY09b4xdzUitap8ha9GjJih3mgnKOa3r/cCtDP2oJpOhd+3Pz X-Gm-Message-State: AOJu0YynHBOjlehq761NEKQolWxjrZWyPHUKcnnFWmNIfmBycOQ/NtQb U/9W4Ard0GkeVeUsAbx1MSI/bjJsAgtMwtroGP8GGuoCNyG0gY5u X-Google-Smtp-Source: AGHT+IGuVife5e0U+apbMMf5rMQPQs3djtc0+T9PHHfiJv1oUGeHcgAKL+hqfxGqYx2iJONVEzCpsQ== X-Received: by 2002:a05:6e02:138e:b0:375:a0ba:c125 with SMTP id e9e14a558f8ab-3763e06699dmr222604175ab.31.1719612016455; Fri, 28 Jun 2024 15:00:16 -0700 (PDT) Received: from localhost (fpd11144dd.ap.nuro.jp. [209.17.68.221]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-70804989460sm2107199b3a.191.2024.06.28.15.00.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 28 Jun 2024 15:00:15 -0700 (PDT) Date: Sat, 29 Jun 2024 07:00:14 +0900 From: Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= To: Jan Kiszka Cc: Lorenzo Pieralisi , Rob Herring , Bjorn Helgaas , Kishon Vijay Abraham I , Siddharth Vadapalli , Vignesh Raghavendra , Nishanth Menon , "linux-pci@vger.kernel.org" , Linux Kernel Mailing List , linux-arm-kernel Subject: Re: [PATCH v5] PCI: keystone: Add workaround for Errata #i2037 (AM65x SR 1.0) Message-ID: <20240628220014.GB2213719@rocinante> References: <16e1fcae-1ea7-46be-b157-096e05661b15@siemens.com> Precedence: bulk X-Mailing-List: linux-kernel@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: <16e1fcae-1ea7-46be-b157-096e05661b15@siemens.com> Hello, > Errata #i2037 in AM65x/DRA80xM Processors Silicon Revision 1.0 > (SPRZ452D_July 2018_Revised December 2019 [1]) mentions when an > inbound PCIe TLP spans more than two internal AXI 128-byte bursts, > the bus may corrupt the packet payload and the corrupt data may > cause associated applications or the processor to hang. > > The workaround for Errata #i2037 is to limit the maximum read > request size and maximum payload size to 128 bytes. Add workaround > for Errata #i2037 here. The errata and workaround is applicable > only to AM65x SR 1.0 and later versions of the silicon will have > this fixed. > > [1] -> https://www.ti.com/lit/er/sprz452i/sprz452i.pdf Applied to controller/keystone, thank you! [1/1] PCI: keystone: Add workaround for Errata #i2037 (AM65x SR 1.0) https://git.kernel.org/pci/pci/c/86f271f22bbb Krzysztof