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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 90FD7CA9EC5 for ; Mon, 12 Oct 2026 13:23:40 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D7D6B10E563; Mon, 12 Oct 2026 13:23:34 +0000 (UTC) Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id D458510E563 for ; Mon, 12 Oct 2026 13:23:27 +0000 (UTC) Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 7B9FB41595; Mon, 12 Oct 2026 13:23:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0F2C71F0089B; Mon, 12 Oct 2026 13:23:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1791811407; bh=RAf0PxXprLYYnwzidh4/H5bSyLy9i7/l1qep+L8tsxY=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=DntkaKeeUOIOwed2ECaW0od+jrp9eoPnMkY0GOAtKticLE9TRPiqHfTuFYqmaG2yb EfjDZvMBrDm68TpuLJqyU4UZWR65i70tnOQFEIX4e0qkzZK2LM9o/lITBzmxN3LB2B UytKVm3oDHND7qzxwVlHa03M6yiV7XljVOdEkgU9yI3w0dl16wI2AroyBABLEdkRbH Fbj3Rh6FmJ2XNeC2lQLOYcXUPalXhVOqnR0RdbJOh4zR6BhuoEIVCCt11oeqoPtGBS h2f7ETe8Rg5jGbmDPKdkJZwDa1ZSPoZxb831r9FsjD1euaruXENKTZ0mQ8p/EgBDnq EggOQhSgLHwbQ== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH v10 13/18] PCI/P2PDMA: Test the ACS P2P routing walk To: "Leon Romanovsky" Cc: linux-rdma@vger.kernel.org, linux-pci@vger.kernel.org, media-ci@linuxtv.org, dri-devel@lists.freedesktop.org, kvm@vger.kernel.org In-Reply-To: <20261012-fix-p2p-acs-v4-0-v10-13-6ffe7b7a4517@nvidia.com> References: <20261012-fix-p2p-acs-v4-0-v10-0-6ffe7b7a4517@nvidia.com> <20261012-fix-p2p-acs-v4-0-v10-13-6ffe7b7a4517@nvidia.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Mon, 12 Oct 2026 13:23:26 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: sashiko-reviews@lists.linux.dev Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" > From: Leon Romanovsky >=20 > calc_map_type_and_dist() decides which ports along a path carry the > routing controls, and holds every class's answer in one cache entry. > Neither depends on a single register, so a table of them cannot reach the > walk itself. >=20 > Drive the walk over a fabricated fabric of two devices below a switch, > with fake config space supplying the ACS Control registers. Cover the > ports below the divergence, the three cases where two classes of one path > disagree, and the packed cache, which the fabric has no provider state to > exercise indirectly. >=20 > Tested-by: Tushar Dave > Signed-off-by: Leon Romanovsky Sashiko has reviewed this patch and found no issues. It looks great! --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261012-fix-p2p-ac= s-v4-0-v10-0-6ffe7b7a4517@nvidia.com?part=3D13