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Nov 2019 12:34:59 +0000 To: Viacheslav Ovsiienko , CC: , , , , References: <1572527121-13133-2-git-send-email-viacheslavo@mellanox.com> <1572540506-531-1-git-send-email-viacheslavo@mellanox.com> <1572540506-531-3-git-send-email-viacheslavo@mellanox.com> From: Andrew Rybchenko Openpgp: preference=signencrypt Autocrypt: addr=arybchenko@solarflare.com; keydata= mQINBF2681gBEACbdTxu8eLL3UX2oAelsnK9GkeaJeUYSOHPJQpV7RL/iaIskqTwBRnhjXt7 j9UEwGA+omnOmqQMpeQTb/F9Ma2dYE+Hw4/t/1KVjxr3ehFaASvwR4fWJfO4e2l/Rk4rG6Yi 5r6CWU2y8su2654Fr8KFc+cMGOAgKoZTZHZsRy5lHpMlemeF+VZkv8L5sYJWPnsypgqlCG3h v6lbtfZs+QqYbFH6bqoZwBAl5irmxywGR7ZJr1GLUZZ1lfdazSY8r6Vz0/Ip/KVxGu2uxo81 QCsAj0ZsQtwji9Sds/prTiPrIjx8Fc/tfbnAuVuPcnPbczwCJACzQr4q26XATL3kVuZhSBWh 4XfO/EAUuEq5AemUG5DDTM87g7Lp4eT9gMZB6P+rJwWPNWTiV3L7Cn+fO+l9mTPnOqdzBgDe OaulKiNSft1o0DY4bGzOmM2ad2cZt0jfnbMPMTE9zsr6+RFa+M8Ct20o6U1MUE4vP6veErMK of4kZ8PdoMM+Sq1hxMPNtlcVBSP9xMmdSZPlfDYI5VWosOceEcz7XZdjBJKdwKuz70V7eac4 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<597ba4a8-d708-25f6-1157-173b6e17d246@solarflare.com> Date: Fri, 1 Nov 2019 15:34:55 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <1572540506-531-3-git-send-email-viacheslavo@mellanox.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Language: en-GB X-Originating-IP: [91.220.146.112] X-ClientProxiedBy: ocex03.SolarFlarecom.com (10.20.40.36) To ukex01.SolarFlarecom.com (10.17.10.4) X-TM-AS-Product-Ver: SMEX-12.5.0.1300-8.5.1010-25014.003 X-TM-AS-Result: No-8.565500-8.000000-10 X-TMASE-MatchedRID: +f/wAVSGjujmLzc6AOD8DfHkpkyUphL9I5rZlsanIIWztEJA/aevveWU N1Ca5NeJ2OpekNHHMko3LVkm9UV6zBQRASVzWG92fY+iJfFQBxdKgIbix5+XxExr7YP74w0XVQU 8VbWsRfhxmcXeaKpVfujOMDIctEiB5a3ROJ4+8LpNkpJuEXQygbGrfsIGMk1sVI7KaIl9NhcfKR 0448qhu9CWLgvHJIhDbKDreD/qzTEngMpivl/REiKzRUQvfA/aGwKs3RUcsbg6NB2uz4yTZCqiH C17IoyQ7hx2v4X/ZoXzitR8QC/ZKzWYHgPBpNXWbm8pd3f6T799LQinZ4QefL6qvLNjDYTwsuf7 RWbvUtx1r8FBbF0I5gtuKBGekqUpm+MB6kaZ2g433i4r65pBtbWS2km8kxmNzBgrGgsKuNeHqxc r3gb2ea+JxWmbCP2Yu1pVVAXJk14Aocvh1cKGCiKB22Qae/FsDM+GeNxQ+s2HzGTHoCwyHhlNKS p2rPkW5wiX7RWZGYs2CWDRVNNHuzflzkGcoK72 X-TM-AS-User-Approved-Sender: Yes X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--8.565500-8.000000 X-TMASE-Version: SMEX-12.5.0.1300-8.5.1010-25014.003 X-MDID: 1572611709-VwfrlH04FoTB Subject: Re: [dpdk-dev] [PATCH v8 2/2] ethdev: move egress metadata to dynamic field 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" On 10/31/19 7:48 PM, Viacheslav Ovsiienko wrote: > The dynamic mbuf fields were introduced by [1]. The egress metadata is > good candidate to be moved from statically allocated field tx_metadata to > dynamic one. Because mbufs are used in half-duplex fashion only, it is > safe to share this dynamic field with ingress metadata. > > The shared dynamic field contains either egress (if application going to > transmit mbuf with tx_burst) or ingress (if mbuf is received with rx_burst) > metadata and can be accessed by RTE_FLOW_DYNF_METADATA() macro or with > rte_flow_dynf_metadata_set() and rte_flow_dynf_metadata_get() helper > routines. PKT_TX_DYNF_METADATA/PKT_RX_DYNF_METADATA flag will be set > along with the data. > > The mbuf dynamic field must be registered by calling > rte_flow_dynf_metadata_register() prior accessing the data. > > The availability of dynamic mbuf metadata field can be checked with > rte_flow_dynf_metadata_avail() routine. > > DEV_TX_OFFLOAD_MATCH_METADATA offload and configuration flag is removed. > The metadata support in PMDs is engaged on dynamic field registration. > > Metadata feature is getting complex. We might have some set of actions > and items that might be supported by PMDs in multiple combinations, > the supported values and masks are the subjects to query by perfroming > trials (with rte_flow_validate). > > [1] http://patches.dpdk.org/patch/62040/ > > Signed-off-by: Viacheslav Ovsiienko > Acked-by: Ori Kam I'm not sure that removal of DEV_TX_OFFLOAD_MATCH_METADATA is a step in right direction, anyway: Acked-by: Andrew Rybchenko