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Miller" , Jakub Kicinski , Arjan van de Ven , Cong Wang , Jamal Hadi Salim , Jiri Pirko , "netdev@vger.kernel.org" Subject: RE: [PATCH net v1] net/sched: Don't print dump stack in event of transmission timeout Thread-Topic: [PATCH net v1] net/sched: Don't print dump stack in event of transmission timeout Thread-Index: AQHWEJDvA8zEZsFxqkWKpdmc7/rynqh2wgkggAAXQYCAAALIkIAABoIAgAAA73A= Date: Mon, 13 Apr 2020 11:01:42 +0000 Message-ID: References: <20200412060854.334895-1-leon@kernel.org> <20200413102053.GI334007@unreal> <20200413105408.GJ334007@unreal> In-Reply-To: <20200413105408.GJ334007@unreal> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=joabreu@synopsys.com; x-originating-ip: [198.182.37.200] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 0acb3641-be54-4130-3b85-08d7df9a0cde x-ms-traffictypediagnostic: BN8PR12MB3251: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:1850; x-forefront-prvs: 037291602B x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:BN8PR12MB3266.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFTY:;SFS:(10019020)(136003)(346002)(366004)(376002)(39860400002)(396003)(7696005)(316002)(54906003)(33656002)(66946007)(8676002)(81156014)(8936002)(6506007)(6916009)(76116006)(86362001)(66476007)(64756008)(66446008)(66556008)(186003)(71200400001)(4326008)(26005)(52536014)(5660300002)(9686003)(2906002)(4744005)(55016002)(478600001);DIR:OUT;SFP:1102; received-spf: None (protection.outlook.com: synopsys.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 6f7Bf34lkFv57OIgmX/O7frwkXjzSlL3SYuLLXencn3ntYJjhhupu0gxFa+v0xzQGIn2NThVp9JRmSh88dV2nlcyMu3WBHsYHrYQKsMaFTAJ/AXlBZPx1MwcWGtAQXCP80WNWWiJjTmagjiZCHhAZ2HiU673KlJHuLApdaF68HhIpk86UIcMGhvrhyqklfnXF8+kDyl5V4TMLvmQUJErUfoF2Fp3CUlFgAKPtrbHiF4rpMaijCblSmPmM+zuF6ZDnFARjfd/ZrHEhx5NHngxt+nxZGii2yAz8rvzxkkI4/qB817Nau9zy9Zb0FWXhD9g+kRPomcHdiMUTMDbvUM6n9FtOEV9w0YupEcxFkkjTHgGJ9KkRk/uassfhVgMDs+Wyd8J8g8lhRDfHylTClUpQh4P676iKF8duRzibdUwiMPAd6FUu4nFe/iKDOoP1Qjn x-ms-exchange-antispam-messagedata: AdscBBWg+F+kGluNpnZaspYmtb03zjXurhIzgwx7GCslWJUS9dYN6gKcCxTsFhHtLmhdC7YHyhfzgf6ZudyAzdciUO5rnPMADXLnawYKL4dcokRSBxRgcJ68Ir2B/ErFJ8jPfMu6WW9WQjdh7D4QiQ== x-ms-exchange-transport-forked: True Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 0acb3641-be54-4130-3b85-08d7df9a0cde X-MS-Exchange-CrossTenant-originalarrivaltime: 13 Apr 2020 11:01:42.8663 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: c33c9f88-1eb7-4099-9700-16013fd9e8aa X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: idUPRnRKqNFMOvCLABlIAVloMiccAZHGRONN6xXkwyxZfn+PgAtz4MHpVKt1r79cLUXWk+KxXfl0jjHHYfMVbQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN8PR12MB3251 X-OriginatorOrg: synopsys.com Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Leon Romanovsky Date: Apr/13/2020, 11:54:08 (UTC+00:00) > Sorry, if I misunderstood you, but you are proposing to count traffic, ri= ght? >=20 > If yes, RDMA traffic bypasses the SW stack and not visible to the kernel,= hence > the BQL will count only ETH portion of that mixed traffic, while RDMA tra= ffic > is the one who "blocked" transmission channel (QP in RDMA terminology). Sorry but you don't mention in your commit message that this is RDMA=20 specific so that's why I brought up the topic of BQL. Apologies for the=20 misunderstood. --- Thanks, Jose Miguel Abreu