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 C9A9CCA5FCC for ; Thu, 1 Oct 2026 12:07:08 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 04EA310E3AE; Thu, 1 Oct 2026 12:07:08 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="IOeGcL+6"; dkim-atps=neutral Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by gabe.freedesktop.org (Postfix) with ESMTPS id A145E10E0C1 for ; Thu, 1 Oct 2026 12:07:06 +0000 (UTC) Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id AAB2F60A57; Thu, 1 Oct 2026 12:07:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 159921F00898; Thu, 1 Oct 2026 12:07:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790856425; bh=mcMVQzXG95eO3ITecvGsmKsKXAEOB9s8JTPfoxFOw+o=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=IOeGcL+6YtKjEaHeeKJFd9qwbSjGygahNrfUxXJroc+UYL/uJxcNM406AAA2ct/g5 l7TwkY1HYtSXOrqY0KK9+PaqBy6BUZdTFBktoZYFhHXFLzIPnG2cPTU50xIkSWpfRt TkMIq3RLUmmNoxrvH98/mvpSp3pL/X3BXXMLP4IbyzJfENZM+5OU8DEjqrWpOM4c0E M0jm1dbPoeIigGpzeldLUxXpFZF9i7nhr0tOQWReNZrLjhn2IYFu2t+zMmo2zgzRYm mCk+enUUAdPrQrGf6RB1/jfCZM0qByGK1mzXnbmdzGfG2R7C9XQ99ChVvUHLDLI27t X0IpgHT39nGdw== From: sashiko-bot@kernel.org Subject: Re: [PATCH v9 13/18] PCI/P2PDMA: Test the ACS P2P routing walk To: "Leon Romanovsky" Cc: kvm@vger.kernel.org, media-ci@linuxtv.org, linux-pci@vger.kernel.org, linux-rdma@vger.kernel.org, dri-devel@lists.freedesktop.org In-Reply-To: <20261001-fix-p2p-acs-v4-0-v9-13-1a8e0f50ddd9@nvidia.com> References: <20261001-fix-p2p-acs-v4-0-v9-0-1a8e0f50ddd9@nvidia.com> <20261001-fix-p2p-acs-v4-0-v9-13-1a8e0f50ddd9@nvidia.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Thu, 01 Oct 2026 12:07:04 +0000 Message-Id: <20261001120705.159921F00898@smtp.kernel.org> 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/20261001-fix-p2p-ac= s-v4-0-v9-0-1a8e0f50ddd9@nvidia.com?part=3D13