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Wed, 7 Aug 2019 13:28:38 +0000 Received: from VI1PR0401MB2541.eurprd04.prod.outlook.com ([fe80::24bf:633d:8481:ead]) by VI1PR0401MB2541.eurprd04.prod.outlook.com ([fe80::24bf:633d:8481:ead%6]) with mapi id 15.20.2157.015; Wed, 7 Aug 2019 13:28:38 +0000 From: Hemant Agrawal To: Thomas Monjalon , Gagandeep Singh CC: David Marchand , dev , "Burakov, Anatoly" , Olivier Matz , Andrew Rybchenko , Nipun Gupta Thread-Topic: [dpdk-dev] [PATCH] eal: change max hugepage sizes to 4 Thread-Index: AQHVTQqFDT1Qk+dnvUGi1f1Ks+IbNKbvlXiAgAAB1ACAABY/sA== Date: Wed, 7 Aug 2019 13:28:38 +0000 Message-ID: References: <20190807101204.21614-1-g.singh@nxp.com> <52183700.OczlixnxyG@xps> In-Reply-To: <52183700.OczlixnxyG@xps> 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=hemant.agrawal@nxp.com; x-originating-ip: [182.69.85.182] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: f5ae3a12-6f94-4c7c-1315-08d71b3b27f3 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0; 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SCL:1; SRVR:VI1PR0401MB2286; H:VI1PR0401MB2541.eurprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: iMcFPHfI3vbqIY/g5rL+mLPIw6/LtMFTB4dQ8akBZWXKGTSNW7CA8r9zim8H00ZWzzxnwicridvuiPsX0fK4zzFkPbKG0/NsS+Synu/Kd688ulUFSwpCMG+e1/UcSyxqgzf+UOUG9gNnWaqakXWQkVEVsiYMmB2YvQTuf/sxzJhwVh0Z3MUqntus7j2JmT0u5hsGM+veHqbqDl/fBSjzl9PWWB8gKBubFsj7BZS+CCiACokecxN+34QbFmyZz4M7vZQ3HrEmpqRtlJoloAJRkTIDAfslwfEgBQbPtxOoC9nGHZj+P7uE0qBQsA6F4CnQexjvChGk1ySwQI3id781zufBbtzSqNgwm2wMprPVkxxiy3w88sahwAj+yO+02pMOJ8ZWZCfhlPPjx+xIK+D33U8pp+rWtyuypobxRO/mztA= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: f5ae3a12-6f94-4c7c-1315-08d71b3b27f3 X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Aug 2019 13:28:38.1997 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 8HwJLl+2qtfuX4JOMltgDZV18SwA2YqIgMKIQnRCArjzRluXEVB4HiZhB0nLqy4Y+lVDiJ9nD0yx3P4VpG2Chw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR0401MB2286 Subject: Re: [dpdk-dev] [PATCH] eal: change max hugepage sizes to 4 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" HI Thomas, > > > DPDK currently is supporting maximum 3 hugepage, sizes whereas > > > system can support more than this e.g. > > > 64K, 2M, 32M and 1G. > > > > You can mention ARM platform here, and that this issue starts with > > kernel 5.2 (and I would try to mention this in the title as well). > > This is better than an annotation that will be lost. > > > > > > > Having these four hugepage sizes available to use by DPDK, which is > > > valid in case of '--in-memory' EAL option or using 4 separate mount > > > points for each hugepage size; > > > hugepage_info_init() API reports an error. > > > > Can you describe what is the impact from a user point of view rather > > than mentioning this internal function? >=20 > Yes please, we need to understand how much it is critical. > Should we Cc stable@dpdk.org for backport? > Should it be merged at the last minute in 19.08? >=20 VPP usages in-memory option. So, VPP on ARM with kernel 5.2 wont' work with= out this patch.=20