From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9273F3AA504; Thu, 1 Oct 2026 12:07:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790856434; cv=none; b=Sm1sfF9s/P8FA8AOC+PTEdRmSEwr0VggHkZoPCGqZHd/oczZRlfLX6hWIghpBsxu1HvyS/SnVb7EIyat7Nm6juQFDfUyzqhUHiKScpKFJyUkcHYp7x2UV+4wjXiUZqJtd63Ahbt9VbU5vRqPpYHXEUPFMLbzyQNxuMyfa2V/CK8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790856434; c=relaxed/simple; bh=mcMVQzXG95eO3ITecvGsmKsKXAEOB9s8JTPfoxFOw+o=; h=From:Subject:To:Cc:In-Reply-To:References:Content-Type:Date: Message-Id; b=bpd6vHuSVw9r0gEF/HKNMifRTBToEa6l8fj6ytxTJ4Vn8DjpqbIOFbQLFjhRuvIFit7qO4CAdbzCxnYy6csXcHjxngnJdrS2pPOhxksUeYyYEkzSOxpezFuMuddIchaDFU+ml6YYzHXNKRjFXOoKJCa1kQyTK+nVWdXJj5cwnV4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=IOeGcL+6; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="IOeGcL+6" 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 Reply-To: sashiko-reviews@lists.linux.dev 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> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: > 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