From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from ale.deltatee.com (ale.deltatee.com [204.191.154.188]) (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 1E08851C064; Mon, 21 Sep 2026 22:17:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=204.191.154.188 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790029026; cv=none; b=YNh5F4EWKCTzzVePJczWPE6pNd2Qj8tERMLwLmxXdnRmsP2ldMflt0gHNz8fg5ID6KuB85KAcyz5zGkZTDtW90SFM11L6LCkm7LTpA3D4psVxOlaLsj78FmGBWB/PPyX0vLHhu6gjGwBUXQ4lDGbxGkSEewUiw3Kyckg7Pjmpdo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790029026; c=relaxed/simple; bh=qZS43diFWuKFB0VBv8plxFaiwRVC4Irdx/++kTMpBxo=; h=Message-ID:Date:MIME-Version:To:Cc:References:From:In-Reply-To: Content-Type:Subject; b=FsOv1NSZ43CMWDrgC5ALxh7Hh4qQOVAr4XOx9eweLQGGd6sntfJN8YEISPzvGPSdBf2F66x/o+Mf9e76XGKX3eQ61y8SHPOrEvvGE50lEvhQBDbxcblXfhHf3NTWCmoa6xx7amGASMDGQHsegVASz76xD9Pm+BjhpKXRW3djOr4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=deltatee.com; spf=pass smtp.mailfrom=deltatee.com; dkim=pass (2048-bit key) header.d=deltatee.com header.i=@deltatee.com header.b=gyPjGwgQ; arc=none smtp.client-ip=204.191.154.188 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=deltatee.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=deltatee.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=deltatee.com header.i=@deltatee.com header.b="gyPjGwgQ" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=deltatee.com; s=20200525; h=Subject:In-Reply-To:From:References:Cc:To: MIME-Version:Date:Message-ID:content-disposition; bh=qZS43diFWuKFB0VBv8plxFaiwRVC4Irdx/++kTMpBxo=; b=gyPjGwgQcjCiyKhPbAXmYXw3xl +buvxHWSp3dQP9gg+OFi4M/6hYfsK9hkbTOt+ZvqPIGXQOdn5PU89otUyejBoLdwzF8gSa3NCjV98 lz9UjLBaq3YW2PjpxssUBJNyxcwoWW10iFN/pSwPlVTuHtKzvXVkxbhw5DGsy7/XnnHEQLU/NjxW2 LQX/gwFq0FxkNvESlQz0OyVDfnDGP5D0KSVxMysAdcUzk+IEM07qO4sFfRGEIWR6XNjL0vMGIpo0a H+jfAaaHqUub5uXEZz+NZ/KTIo7bmibu/gMd53QCePldE1dSdT1wo37SkjCqDEmdx+nhjJePGNp8X U0f8N5jA==; Received: from guinness.priv.deltatee.com ([172.16.1.162]) by ale.deltatee.com with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.98.2) (envelope-from ) id 1x8mJo-0000000F5pd-2GHB; Mon, 21 Sep 2026 16:17:01 -0600 Message-ID: <85bb90f0-5a02-4e35-9ed6-ad7e67c1c0d8@deltatee.com> Date: Mon, 21 Sep 2026 16:16:56 -0600 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: Leon Romanovsky , Bjorn Helgaas , Chaitanya Kulkarni , Greg Kroah-Hartman , Jens Axboe , Alex Williamson , Ankit Agrawal , Jason Gunthorpe , Jonathan Corbet , Shuah Khan , "Joerg Roedel (AMD)" , Will Deacon , Robin Murphy , Randy Dunlap , Sumit Semwal , =?UTF-8?Q?Christian_K=C3=B6nig?= Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, iommu@lists.linux.dev, Tushar Dave , linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-rdma@vger.kernel.org, kvm@vger.kernel.org References: <20260920-fix-p2p-acs-v4-0-v7-0-ca0828ab697c@nvidia.com> <20260920-fix-p2p-acs-v4-0-v7-15-ca0828ab697c@nvidia.com> Content-Language: en-CA From: Logan Gunthorpe In-Reply-To: <20260920-fix-p2p-acs-v4-0-v7-15-ca0828ab697c@nvidia.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 172.16.1.162 X-SA-Exim-Rcpt-To: leon@kernel.org, bhelgaas@google.com, kch@nvidia.com, gregkh@linuxfoundation.org, axboe@kernel.dk, alex@shazbot.org, ankita@nvidia.com, jgg@ziepe.ca, corbet@lwn.net, skhan@linuxfoundation.org, joro@8bytes.org, will@kernel.org, robin.murphy@arm.com, rdunlap@infradead.org, sumit.semwal@linaro.org, christian.koenig@amd.com, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, iommu@lists.linux.dev, tdave@nvidia.com, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-rdma@vger.kernel.org, kvm@vger.kernel.org X-SA-Exim-Mail-From: logang@deltatee.com X-Spam-Level: Subject: Re: [PATCH v7 15/19] PCI/P2PDMA: Document TLP-class routing X-SA-Exim-Version: 4.2.1 (built Sun, 23 Feb 2025 07:57:16 +0000) X-SA-Exim-Scanned: Yes (on ale.deltatee.com) On 2026-09-20 05:41, Leon Romanovsky wrote: > +A path is bus addressable only where both directions route directly, so with > +nothing enabled every class is. I don't understand the sentence. Logan