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charset="iso-2022-jp" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: fujitsu.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: OSAPR01MB3844.jpnprd01.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 3f175477-cbdf-4811-b2e2-08d8bb9a33e8 X-MS-Exchange-CrossTenant-originalarrivaltime: 18 Jan 2021 10:17:04.2521 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: a19f121d-81e1-4858-a9d8-736e267fd4c7 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: Z0uIEp4jiUOH0qalwIGP++TG4o4ywmTO3AXElWid6c83/5YwMrefpsc+DTI5oV3ESezwySSTGtPV0LPQusz4SQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: OSAPR01MB2115 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi Andrew > > Do you know how to switch between master/slave? >=20 > There was a patch to ethtool merged for this: >=20 > commit 558f7cc33daf82f945af432c79db40edcbe0dad0 > Author: Oleksij Rempel > Date: Wed Jun 10 10:37:43 2020 +0200 >=20 > netlink: add master/slave configuration support I know this. -- # ./ethtool --version ethtool version 5.10 # ./ethtool -s eth1 master-slave slave-force=20 ethtool (-s): invalid value 'slave-force' for parameter 'master-slave' -- As I wrote in the previous e-mail, it doesn't work because it doesn't=20 include the process to parse the master-slave argument. > The help of the ethtool command can show about the "master-slave"=20 > option, but it doesn't seem to handle the arguments. > I checked ethtool.c and it seems that do_sset () doesn't implement the=20 > process of parsing master-slave arguments... Once ethtool works properly, I will test the master-slave switching behavio= r.