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Mon, 28 Jun 2021 20:47:06 +0000 From: Michael Kelley To: "longli@linuxonhyperv.com" , "linux-kernel@vger.kernel.org" , "linux-hyperv@vger.kernel.org" CC: Long Li , KY Srinivasan , Haiyang Zhang , Stephen Hemminger , Wei Liu , Dexuan Cui Subject: RE: [Patch v2 1/3] Drivers: hv: vmbus: add support to ignore certain PCIE devices Thread-Topic: [Patch v2 1/3] Drivers: hv: vmbus: add support to ignore certain PCIE devices Thread-Index: AQHXalTIMOVKbzNQ5EyGb0ti1Noo2qsp6JKQ Date: Mon, 28 Jun 2021 20:47:05 +0000 Message-ID: References: <1624689020-9589-1-git-send-email-longli@linuxonhyperv.com> <1624689020-9589-2-git-send-email-longli@linuxonhyperv.com> In-Reply-To: <1624689020-9589-2-git-send-email-longli@linuxonhyperv.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: msip_labels: MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_ActionId=eee830ac-af5e-4e38-ac90-3362c03f27ed;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_ContentBits=0;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Enabled=true;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Method=Standard;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Name=Internal;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_SetDate=2021-06-28T20:46:06Z;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_SiteId=72f988bf-86f1-41af-91ab-2d7cd011db47; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MWHPR21MB1593.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 80e3786a-6514-4a92-6d9f-08d93a75e408 X-MS-Exchange-CrossTenant-originalarrivaltime: 28 Jun 2021 20:47:05.8859 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: XsV1CPwCuqBHsqFC/oGTqu9POMFiCv8tImn0R19gPxgWcorm1bMVavBIFDUwoJxEN6xCSbzb3hBM15zJkjpKDH+iJMX0eTwOx/Zv4OO4/l4= X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR21MB0285 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: longli@linuxonhyperv.com Sent: Friday, Jun= e 25, 2021 11:30 PM >=20 > Under certain configurations when Hyper-v presents a device to VMBUS, it > may have a VMBUS channel and a PCIe channel. The PCIe channel is not used > in Linux and does not have a backing PCIE device on Hyper-v. For such > devices, ignore those PCIe channels so they are not getting probed by the > PCI subsystem. >=20 > Cc: K. Y. Srinivasan > Cc: Haiyang Zhang > Cc: Stephen Hemminger > Cc: Wei Liu > Cc: Dexuan Cui > Signed-off-by: Long Li > --- > drivers/hv/channel_mgmt.c | 48 +++++++++++++++++++++++++++++++++++++++++= ------ > 1 file changed, 42 insertions(+), 6 deletions(-) >=20 Reviewed-by: Michael Kelley