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Wed, 13 Feb 2019 05:37:50 +0000 From: Anandaraman Viswanathan To: "dev@dpdk.org" CC: "helin.zhang@intel.com" , Rajaraman Balasubramanian , "Gunaseelan Venkatachary - ERS, HCL Tech" , Santosh Sethupathi , "Salvatore Morsa" Thread-Topic: RSS handling using L2_Payload type - Flexible Payload Thread-Index: AdTDWOqywxuBZUZUReeUBVeVf0NjEQ== Date: Wed, 13 Feb 2019 05:37:50 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: Authentication-Results-Original: spf=none (sender IP is ) smtp.mailfrom=anandaramanv@hcl.com; x-originating-ip: [192.8.229.10] x-ms-publictraffictype: Email X-MS-Office365-Filtering-Correlation-Id: f066d4d2-ee99-4c10-8795-08d69175875c X-Microsoft-Antispam-Untrusted: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(5600110)(711020)(4605077)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(2017052603328)(7153060)(7193020); SRVR:SG2PR04MB3063; X-MS-TrafficTypeDiagnostic: SG2PR04MB3063:|SG2PR04MB2828: X-MS-Exchange-PUrlCount: 1 X-Microsoft-Exchange-Diagnostics-untrusted: =?us-ascii?Q?1; 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Ip=[203.105.185.20]; Helo=[transportedge.hcl.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SG2PR04MB2828 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-dev] RSS handling using L2_Payload type - Flexible Payload 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: Wed, 13 Feb 2019 05:38:53 -0000 Hi Team, This is regarding RSS feature. In RSS configuration with Flexible Payload, = facing a problem in getting packets distributed across multiple queues (2 p= er port). While debugging, found packets going thru q1 even if million pack= ets are sent. For simulating multiple flows, modifying Inner Payload which has one more E= thernet header, Src and Dest MAC of that header are getting changed increme= ntally for each packet. To further validate if FVL support RSS L2_PAYLOAD , we used the function rt= e_eth_dev_info_get() to check RSS offloads in dev_info struct, It outputs = "hash_key_size:52 flow_type_rss_offloads:0x7ef8", which means RSS supports = L2_PAYLOAD. The details of configuration and code snippets given below struct rte_eth_hash_filter_info filter_info; memset(&filter_info, 0, sizeof(filter_info)); filter_info.info_type =3D RTE_ETH_HASH_FILTER_INPUT_SET_SELECT; filter_info.info.input_set_conf.flow_type =3D RTE_ETH_FLOW_L2_PAYLOAD; filter_info.info.input_set_conf.inset_size =3D 8; filter_info.info.input_set_conf.field[0] =3D RTE_ETH_INPUT_SET_FLEX_PAY= LOAD_1ST_WORD; filter_info.info.input_set_conf.field[1] =3D RTE_ETH_INPUT_SET_FLEX_PAY= LOAD_2ND_WORD; filter_info.info.input_set_conf.field[2] =3D RTE_ETH_INPUT_SET_FLEX_PAY= LOAD_3RD_WORD; filter_info.info.input_set_conf.field[3] =3D RTE_ETH_INPUT_SET_FLEX_PAY= LOAD_4TH_WORD; filter_info.info.input_set_conf.field[4] =3D RTE_ETH_INPUT_SET_FLEX_PAY= LOAD_5TH_WORD; filter_info.info.input_set_conf.field[5] =3D RTE_ETH_INPUT_SET_FLEX_PAY= LOAD_6TH_WORD; filter_info.info.input_set_conf.field[6] =3D RTE_ETH_INPUT_SET_FLEX_PAY= LOAD_7TH_WORD; filter_info.info.input_set_conf.field[7] =3D RTE_ETH_INPUT_SET_FLEX_PAY= LOAD_8TH_WORD; filter_info.info.input_set_conf.op =3D RTE_ETH_INPUT_SET_ADD; filter_ret =3D rte_eth_dev_filter_ctrl(xd->port_id, RTE_ETH_FILTER_HASH= , RTE_ETH_FILTER_SET, &filter_info); MACRO "RTE_ETH_FLOW_L2_PAYLOAD " has been used to set RSS flow type, wish = to check if this approach is good OR Any prerequisites in config to be done= OR Any further changes needed in the code. Hello Helin Copying you as we see from DPDK forum (http://mails.dpdk.org/archives/dev/2= 015-November/027203.html ), you are = the author of above feature in DPDK , hence wish to request for clarifying = our understanding on RSS as mentioned above is correct. Cheers Anand ::DISCLAIMER:: ---------------------------------------------------------------------------= ---------------------------------------------------------------------------= ---------------------------------------------------------------------------= ----------------------------------------------------- The contents of this e-mail and any attachment(s) are confidential and inte= nded for the named recipient(s) only. E-mail transmission is not guaranteed= to be secure or error-free as information could be intercepted, corrupted,= lost, destroyed, arrive late or incomplete, or may contain viruses in tran= smission. 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