From mboxrd@z Thu Jan 1 00:00:00 1970 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5519CC433F5 for ; Sun, 14 Nov 2021 14:14:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3FA2361167 for ; Sun, 14 Nov 2021 14:14:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235827AbhKNOQ6 (ORCPT ); Sun, 14 Nov 2021 09:16:58 -0500 Received: from mail.kernel.org ([198.145.29.99]:57748 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229725AbhKNOQe (ORCPT ); Sun, 14 Nov 2021 09:16:34 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 83D92603E5; Sun, 14 Nov 2021 14:13:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1636899213; bh=C3NWDhqldqXcYgIcx6c/726lUV41ekx3irTNevgGdhU=; h=Subject:To:Cc:From:Date:From; b=geH+nNInt2Za37RYJ9ScJL5P10DA0nTSzgSkNpyp8fuWsaG7SfassMQ89PcwOSz99 shZrjtLWuiB0MLtfm0+/E2XiuIhElLHZWSPYFVWMVzdTvpgh6gayd6Oat6ncm31VnV k1gtj9/wwUUENHRcohDsQBvvEKVvTpMO0vYkNxBA= Subject: FAILED: patch "[PATCH] PCI: aardvark: Fix PCIe Max Payload Size setting" failed to apply to 5.10-stable tree To: pali@kernel.org, kabel@kernel.org, lorenzo.pieralisi@arm.com Cc: From: Date: Sun, 14 Nov 2021 15:13:30 +0100 Message-ID: <163689921013859@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From a4e17d65dafdd3513042d8f00404c9b6068a825c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Pali=20Roh=C3=A1r?= Date: Tue, 5 Oct 2021 20:09:41 +0200 Subject: [PATCH] PCI: aardvark: Fix PCIe Max Payload Size setting MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Change PCIe Max Payload Size setting in PCIe Device Control register to 512 bytes to align with PCIe Link Initialization sequence as defined in Marvell Armada 3700 Functional Specification. According to the specification, maximal Max Payload Size supported by this device is 512 bytes. Without this kernel prints suspicious line: pci 0000:01:00.0: Upstream bridge's Max Payload Size set to 256 (was 16384, max 512) With this change it changes to: pci 0000:01:00.0: Upstream bridge's Max Payload Size set to 256 (was 512, max 512) Link: https://lore.kernel.org/r/20211005180952.6812-3-kabel@kernel.org Fixes: 8c39d710363c ("PCI: aardvark: Add Aardvark PCI host controller driver") Signed-off-by: Pali Rohár Signed-off-by: Marek Behún Signed-off-by: Lorenzo Pieralisi Reviewed-by: Marek Behún Cc: stable@vger.kernel.org diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c index 596ebcfcc82d..884510630bae 100644 --- a/drivers/pci/controller/pci-aardvark.c +++ b/drivers/pci/controller/pci-aardvark.c @@ -488,8 +488,9 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie) reg = advk_readl(pcie, PCIE_CORE_PCIEXP_CAP + PCI_EXP_DEVCTL); reg &= ~PCI_EXP_DEVCTL_RELAX_EN; reg &= ~PCI_EXP_DEVCTL_NOSNOOP_EN; + reg &= ~PCI_EXP_DEVCTL_PAYLOAD; reg &= ~PCI_EXP_DEVCTL_READRQ; - reg |= PCI_EXP_DEVCTL_PAYLOAD; /* Set max payload size */ + reg |= PCI_EXP_DEVCTL_PAYLOAD_512B; reg |= PCI_EXP_DEVCTL_READRQ_512B; advk_writel(pcie, reg, PCIE_CORE_PCIEXP_CAP + PCI_EXP_DEVCTL);