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Bottomley" , "Martin K. Petersen" , "linux-scsi@vger.kernel.org" Subject: RE: [PATCH 11/11] scsi: storvsc: Re-init stor_chns when a channel interrupt is re-assigned Thread-Topic: [PATCH 11/11] scsi: storvsc: Re-init stor_chns when a channel interrupt is re-assigned Thread-Index: AQHWC6i2r4sWCVTnUkGYWEk5nYA+/qhyxvZg Date: Fri, 10 Apr 2020 19:35:50 +0000 Message-ID: References: <20200406001514.19876-1-parri.andrea@gmail.com> <20200406001514.19876-12-parri.andrea@gmail.com> In-Reply-To: <20200406001514.19876-12-parri.andrea@gmail.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_Enabled=True; MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_SiteId=72f988bf-86f1-41af-91ab-2d7cd011db47; MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Owner=mikelley@ntdev.microsoft.com; MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_SetDate=2020-04-10T19:35:48.1491159Z; MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Name=General; MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Application=Microsoft Azure Information Protection; MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_ActionId=fddb7a8a-9772-434a-bd46-0b042666aa95; MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Extended_MSFT_Method=Automatic authentication-results: spf=none (sender IP is ) smtp.mailfrom=mikelley@microsoft.com; x-originating-ip: [24.22.167.197] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 9f623075-c217-4232-f307-08d7dd866049 x-ms-traffictypediagnostic: DM5PR2101MB1109:|DM5PR2101MB1109:|DM5PR2101MB1109: x-ms-exchange-transport-forked: True x-ld-processed: 72f988bf-86f1-41af-91ab-2d7cd011db47,ExtAddr x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:1923; x-forefront-prvs: 0369E8196C x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DM5PR2101MB1047.namprd21.prod.outlook.com;PTR:;CAT:NONE;SFTY:;SFS:(10019020)(4636009)(136003)(39860400002)(346002)(376002)(366004)(396003)(10290500003)(478600001)(110136005)(71200400001)(2906002)(8990500004)(76116006)(8676002)(316002)(7696005)(186003)(54906003)(26005)(81156014)(5660300002)(66946007)(86362001)(66556008)(8936002)(52536014)(6506007)(66476007)(66446008)(4744005)(9686003)(33656002)(4326008)(82960400001)(64756008)(55016002)(82950400001);DIR:OUT;SFP:1102; received-spf: None (protection.outlook.com: microsoft.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: +y7d47Iq8RlwilR37jw4R7/CIRjGjb7MoZm9DChLxueBjlbGiXXb5sg+alRKY4aIPWynGaj3yTpszDxZKOlvpFhH5zcCPWwEatYbjVebvmT0ubaMHoPMAzP9Dn/aJEKCfF0bywKqUO5gYZCEtdyBAf31qR6gG4NebVmDgTl0hO9AHnj3B2fR5G+zXaPwZy7cEOkdMJxQ+eWpsCS+ptIHMQ6h7oS/xzSGCd3vXIrSiwtp/1Ky9w5NGL6iYZRm4YCqe2yESGkxlWLys9J/LzNeTzqAiWGXfxNE9E+YKnocE1BKji9AeRIUoH3eXseGFBN5ytz3OtXmAjjlo8weHjwAC/ygws4FPZ/b734OZfw5iqsVPRwjTIRigpXft6rUljK3S57YDwtTwdetZy1VM5IqPqwTSZjJ/Tnb/EwHm9gRDgo6XHfi/YAgrIkAgGgwHtkx x-ms-exchange-antispam-messagedata: CVzmm4ILzhIu/gfquxqyY4RYifo6M3h10px6WV6AmfhiZ5BWVnJRwGc8p4GotOXKWxGr2TlYeQYaFbMqM+mAXcc63l5dy63ieBOtgA+UoQ+J2DLq7hUPqx5Y4zk8UJBhUhAHE5LHl5mEw3aSDgQSDw== Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9f623075-c217-4232-f307-08d7dd866049 X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Apr 2020 19:35:50.5870 (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: us4alahFVfMXVL6s29m/zMxDXsOZlKQgs0zhH23+qSNfh3me57en3DRhy1lSxdOrQ3gsSX6o6hrC5T0GHPHT7cVsb+AEU+tNaoH9QinRfcs= X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB1109 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andrea Parri (Microsoft) Sent: Sunday, April= 5, 2020 5:15 PM >=20 > For each storvsc_device, storvsc keeps track of the channel target CPUs > associated to the device (alloced_cpus) and it uses this information to > fill a "cache" (stor_chns) mapping CPU->channel according to a certain > heuristic. Update the alloced_cpus mask and the stor_chns array when a > channel of the storvsc device is re-assigned to a different CPU. >=20 > Signed-off-by: Andrea Parri (Microsoft) > Cc: "James E.J. Bottomley" > Cc: "Martin K. Petersen" > Cc: > --- > drivers/hv/vmbus_drv.c | 4 ++ > drivers/scsi/storvsc_drv.c | 95 ++++++++++++++++++++++++++++++++++---- > include/linux/hyperv.h | 3 ++ > 3 files changed, 94 insertions(+), 8 deletions(-) >=20 Reviewed-by: Michael Kelley