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Sun, 2 Sep 2018 17:17:24 +0000 From: Yongseok Koh To: Alejandro Lucero CC: "dev@dpdk.org" , "stable@dpdk.org" , "anatoly.burakov@intel.com" , "echaudro@redhat.com" Thread-Topic: [dpdk-stable] [PATCH 17.11] mem: fix max DMA maskbit size Thread-Index: AQHUQTqTktQrtMGZAEit5Y8CrKeV1aTdPykA Date: Sun, 2 Sep 2018 17:17:23 +0000 Message-ID: <58BAA222-786C-447E-85C7-B042F8C2407D@mellanox.com> References: <1535727232-44836-1-git-send-email-alejandro.lucero@netronome.com> In-Reply-To: <1535727232-44836-1-git-send-email-alejandro.lucero@netronome.com> 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=yskoh@mellanox.com; x-originating-ip: [73.222.116.174] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; DB3PR0502MB4075; 6:ScwSb2E/LeO1MBcHquJqqYlKscham9TwYtEHiaB1MxTvA+PmAYkN4pam4IaYbWry65uM1aWQxL40Ucr73IjZrK4pZ0mEq6hy9t6wuqPTdef76UeWn6CjUKHuQMLU2VTOS606ZzP51hfhI9A8Ac7BmmyNyy8SYWFXFNem802fQ9khre1K8+8AyApVqji8pXuyRHVzm+3Op8BkTmp2GmfQur+7gMXDeiybwvMvtCHOKtCtyT1hjN54JX8Slclc0T1DACCbJoP17lKAkSY0Fhd951qRNmrZmO4oCoKnBVKpukXl8U78xTOssxk9VmioHxBxCoQO2tvVsxoLj9Htsd/aFED6qUNxAnWE5pSkHQJ/3mlmeC54hRyn9YWReT9FzfK5msIMwoDYDcP5cDVyA24lHOi21rU+SrVhv9eZoRlTmrvcN99Uy0RkA+R12cdI09pSefwZI8QU9hzwIOu6tOkRMA==; 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DIR:OUT; SFP:1101; SCL:1; SRVR:DB3PR0502MB4075; H:DB3PR0502MB3980.eurprd05.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: mellanox.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: SNNP0/mohIiBMcX+wQfgsG+mbOsljp+mEVcKMEL2TQFp9uUl2BwxbnOrEkyK/+EMh0iPrYcbHUxqgoDc5hCnW36X+FMumxreBgvtmN2LLt1gQ/O2vcrpP9qb0WaybxaLkJgfHMvJ5sEELL2dehIwPgfJSiWGSh2/AveE1PjIjBBHK/Yv1cGQ1pIMd7YyvYZCFANYiCwLkcrnpX0Xg8tipUXz/fiYDQ2kjJAe7PV3FKVUg1R8YVrLvmQIM6u5tmEBGxWgCi2vsVFsD0LFKq+XHNSo2jQOrXWKVI2yIsyQbwe3OCSD58MDa+NRCvmIbzZT4xiXNfSdugatUPSLfFSaIAW1EkNpTTr7wlVEKvcFsEs= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="us-ascii" Content-ID: <20C77B0290CD854B8F08BE5D19B1F282@eurprd05.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Mellanox.com X-MS-Exchange-CrossTenant-Network-Message-Id: cf7765ca-a233-47bb-9384-08d610f7f316 X-MS-Exchange-CrossTenant-originalarrivaltime: 02 Sep 2018 17:17:23.9242 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: a652971c-7d2e-4d9b-a6a4-d149256f461b X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB3PR0502MB4075 Subject: Re: [dpdk-dev] [dpdk-stable] [PATCH 17.11] mem: fix max DMA maskbit size X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 02 Sep 2018 17:17:26 -0000 > On Aug 31, 2018, at 7:53 AM, Alejandro Lucero wrote: >=20 > The sanity check inside rte_eal_check_dma_mask is using 47 bits as > the maximum size. It turns out there are some IOMMU hardware reporting > 48 bits precluding the IOVA VA mode to be enabled. >=20 > It is harmless to raise the maximum mask size to 63 bits. >=20 > This patch also removes any reference to unused X86_VA_WIDTH. >=20 > Fixes: 3a80bc50c949 ("mem: add function for checking memsegs IOVAs addres= ses") >=20 > Signed-off-by: Alejandro Lucero > --- Applied to stable/17.11. Thanks, Yongseok=