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 A7B4737A498; Mon, 12 Oct 2026 13:23:27 +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=1791811408; cv=none; b=XVq/uJsvgv+cDU7JJeYk92YoRxNAWhfhSPDYvWvihiqfhNZpK4gu39tGLLo8u0oIOkzSgSEXD58zpHMCdBBPnq6faum3GdCXcGIGpgEjOFKqGwHqm2tugH5JrffZpA1qlGu0HTyd1Gk8V1ZatxWPBvwsNkRCHVa3yPxvKgofdWs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791811408; c=relaxed/simple; bh=RAf0PxXprLYYnwzidh4/H5bSyLy9i7/l1qep+L8tsxY=; h=Message-ID:From:Subject:To:Cc:In-Reply-To:References:Content-Type: Date; b=KKI+ksrQRQYY6GPOfrcbRf0ipO21s/A8FzbNT3j3AwBLu6IHfYV9/ndGCNGcH8n8aE+DzSR//u9FRJw1cTEwdyqhy5VEm3ZPW0ExUFHEj8rWRtRXfIMTFwBN+Ocd3jlE9CevJ8e0MZxTtMLu7AFKF0PKWxM9rGBG0Fono6KKluU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DntkaKee; 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="DntkaKee" 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 Reply-To: sashiko-reviews@lists.linux.dev 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 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/20261012-fix-p2p-ac= s-v4-0-v10-0-6ffe7b7a4517@nvidia.com?part=3D13