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charset="us-ascii" Content-ID: <069816D038FD0C428137B9FB4C8B5440@namprd04.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: 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 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: SN7PR04MB8532.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 733302fe-8b6b-4330-88e4-08de5edb2105 X-MS-Exchange-CrossTenant-originalarrivaltime: 29 Jan 2026 02:07:17.7840 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b61c8803-16f3-4c35-9b17-6f65f441df86 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: XqAfYbc5AdR/4JiJVQYk2fZGeJre8ZMloAgoq1YbwhrcMKL6R1VWZDoeIPOq0+izUFNwQyVdlYu+HqtZ1I/uZIa30ByqhEAXM3Aa0WqZpq0= X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM8PR04MB7975 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260128_180724_671065_9A525315 X-CRM114-Status: GOOD ( 17.90 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Jan 28, 2026 / 15:28, John Garry wrote: > On 06/12/2024 13:51, Aurelien Aptel wrote: > > +++ b/tests/nvme/055 > > @@ -0,0 +1,268 @@ > > +#!/bin/bash > > +# SPDX-License-Identifier: GPL-3.0+ > > +# Copyright (C) 2024 Aurelien Aptel > > +# > > +# zero-copy offload > > + > > +. tests/nvme/rc > > + > > +DESCRIPTION=3D"enable zero copy offload and run rw traffic" > > +TIMED=3D1 > > + > > +iface_idx=3D"" > > + > > +# these vars get updated after each call to connect_run_disconnect() > > +nb_packets=3D0 > > +nb_bytes=3D0 > > +nb_offload_packets=3D0 > > +nb_offload_bytes=3D0 > > +offload_bytes_ratio=3D0 > > +offload_packets_ratio=3D0 > > + > > +requires() { > > + _nvme_requires > > + _require_remote_nvme_target > > + _require_nvme_trtype tcp > > + _have_kernel_option ULP_DDP >=20 > I notice that this kernel config option is still not included in mainline= , > over 1 year later. >=20 > It is strange to me to merge tests for features which are yet to be > accepted. When this test case was added, I was aware of that the DDP offload feature = was not yet accepted [1]. At that time, I expected that the feature would be ap= plied soon. This test case was the first use case of the blktests feature "NVME_TARGET_CONTROL" which allows setting up nvme targets for testing in flexible manner [2]. The test case was useful to demonstrate the value of t= he feature. That's why I merged the test for "features which are yet to be accepted". Said that, assuming the DDP offload feature is not going to be mainlined, t= his test case has lost its value. I think it is reasonable to remove the test c= ase at this moment. A patch post for removal will be helpful to confirm consens= us. [1] https://lore.kernel.org/all/2537c8iv1kq.fsf@nvidia.com/ [2] https://lore.kernel.org/linux-block/20241206135120.5141-2-aaptel@nvidia= .com/=