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Miller" , Jakub Kicinski CC: "linux-hyperv@vger.kernel.org" , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: RE: [PATCH v8 net-next] net: hyperv: dump TX indirection table to ethtool regs Thread-Topic: [PATCH v8 net-next] net: hyperv: dump TX indirection table to ethtool regs Thread-Index: AQHWYXDtZan1WVS5t0+fJ4F+yHCxU6kW2yPg Date: Fri, 24 Jul 2020 15:28:34 +0000 Message-ID: References: <20200724041426.GB25409@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net> In-Reply-To: <20200724041426.GB25409@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net> 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_SetDate=2020-07-24T15:28:33Z; 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_SiteId=72f988bf-86f1-41af-91ab-2d7cd011db47; MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_ActionId=e472fbb9-0a8d-4119-af59-4db1518b7197; MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_ContentBits=0 authentication-results: linux.microsoft.com; dkim=none (message not signed) header.d=none;linux.microsoft.com; dmarc=none action=none header.from=microsoft.com; x-originating-ip: [75.100.88.238] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 995e9c0e-1efb-49e5-e6a7-08d82fe63aa3 x-ms-traffictypediagnostic: MN2PR21MB1453: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:264; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: HEKHB1GOrweEW7fa6g2YWUtUbSZO3Oc9ndqAu7kvL/mKyjheLE0efS+U1+TYjzw2UnpKG4/4fm+KaPCwju6uJhnynCkaMa6Ftl6t96EuKDu2rKsdHRfZv0nSRhRa622GWKI+HyTMn1iNKliKLRAfrlUG9nH/oxSlJreuvm9uLjbNOkI1Uka7VacrtfqUnP1+WKuSPu8dxY/Gqpf+BLTSa4HiboyYquZKZvrg57DKYHRE3ZI67aALlYHs9YJd/3bpF5n0gbsal0kCBNF3rvaIUtTh7DGEpfPCy14hdlcl8+VFi9PuuIBz7BIlvoDZ+hL9v5yaohuxANEqT82nnJY1Dw== x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:BL0PR2101MB0930.namprd21.prod.outlook.com;PTR:;CAT:NONE;SFTY:;SFS:(4636009)(346002)(396003)(366004)(39860400002)(136003)(376002)(71200400001)(186003)(26005)(10290500003)(478600001)(86362001)(66946007)(2906002)(9686003)(33656002)(55016002)(4326008)(82950400001)(8676002)(76116006)(54906003)(4744005)(82960400001)(66446008)(110136005)(64756008)(66476007)(8936002)(83380400001)(5660300002)(52536014)(316002)(6506007)(66556008)(7696005)(8990500004)(53546011);DIR:OUT;SFP:1102; x-ms-exchange-antispam-messagedata: fXbVytsaX68FCX4sTSrEVPKEmAlnk4h4eTRoZVZCyeRJXD37+IKsHxsa30O3CZQ0gC2lSVTsC3AIa7854scpoZS/sFQ5x62893C/+FH0XkDQK2Kf0IEW2OeGx2Gvp23SYjYzigBY8fDacrCtTSwuFucmibdXb4ZuJPS8mGEhf9iXuk6DHkoxltaebzAs4+P87iV5PgG8lXdDj2XrBRfCA+FmVF+IPwFs4eI3sDyEXLXA0ja+vjs5VKtBfcEGg97c4nLgEygCY9NI1VPLQ4UHAjpQLyJsNyE4LvXrNMovXd9iCsfPGfOw9zhBTI+WRcL467JNWsqEkx8md62mLplqCXGYDF5T+90mjIBhtj09iW7X2dzpowI6I7mUpYh7hORSohmUexfxSU/UI99Lfl5LQW3hle7fHQoKf9q61m+zVDFuDj6zZY+klssGs4H5mPO5mkT0BY/H/M6Qj/89RHHPdCv3ez12KMODT06KEdFSDg18VDuNlJGFdCekWLeSAXfmuYekgmKnFD7BJf7N7flgDL1F7mxlupc8R3HKK2tCUQWSCw1K5C4caPAgo2hOOMBInyjXuQPewalr5wGxgypWtYv+ZWdfZiBQyf241STNlti8zjaPo4mVPFtgDe4gGxMhicURuZsCKWaxMNi54PjH7A== Content-Type: text/plain; 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: BL0PR2101MB0930.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 995e9c0e-1efb-49e5-e6a7-08d82fe63aa3 X-MS-Exchange-CrossTenant-originalarrivaltime: 24 Jul 2020 15:28:34.4099 (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: ZddrgJyHJuEQn6cgYn4+i4hADFkeClyhfx/F7CruUnYXFNB3mfsfeL6uGQWrxg/wsSOVNCWMo9e2zRVgb/Dr1g== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR21MB1453 Sender: linux-hyperv-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-hyperv@vger.kernel.org > -----Original Message----- > From: Chi Song > Sent: Friday, July 24, 2020 12:14 AM > To: KY Srinivasan ; Haiyang Zhang > ; Stephen Hemminger ; > Wei Liu ; David S. Miller ; Jaku= b > Kicinski > Cc: linux-hyperv@vger.kernel.org; netdev@vger.kernel.org; linux- > kernel@vger.kernel.org > Subject: [PATCH v8 net-next] net: hyperv: dump TX indirection table to et= htool > regs >=20 > An imbalanced TX indirection table causes netvsc to have low > performance. This table is created and managed during runtime. To help > better diagnose performance issues caused by imbalanced tables, it needs > make TX indirection tables visible. >=20 > Because TX indirection table is driver specified information, so > display it via ethtool register dump. >=20 > Signed-off-by: Chi Song Reviewed-by: Haiyang Zhang