From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 5B5A9A04B2; Sat, 29 Aug 2020 13:58:22 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id AFDC31C0BF; Sat, 29 Aug 2020 13:58:21 +0200 (CEST) Received: from dispatch1-us1.ppe-hosted.com (dispatch1-us1.ppe-hosted.com [148.163.129.52]) by dpdk.org (Postfix) with ESMTP id 3CE211C0B7 for ; Sat, 29 Aug 2020 13:58:20 +0200 (CEST) Received: from mx1-us1.ppe-hosted.com (unknown [10.7.65.61]) by dispatch1-us1.ppe-hosted.com (PPE Hosted ESMTP Server) with ESMTP id 73B896006F; Sat, 29 Aug 2020 11:58:19 +0000 (UTC) Received: from us4-mdac16-42.ut7.mdlocal (unknown [10.7.64.24]) by mx1-us1.ppe-hosted.com (PPE Hosted ESMTP Server) with ESMTP id 706198009E; Sat, 29 Aug 2020 11:58:19 +0000 (UTC) X-Virus-Scanned: Proofpoint Essentials engine Received: from mx1-us1.ppe-hosted.com (unknown [10.7.66.33]) by mx1-us1.ppe-hosted.com (PPE Hosted ESMTP Server) with ESMTPS id C9AAD80051; Sat, 29 Aug 2020 11:58:17 +0000 (UTC) Received: from webmail.solarflare.com (uk.solarflare.com [193.34.186.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mx1-us1.ppe-hosted.com (PPE Hosted ESMTP Server) with ESMTPS id A1860A80074; Sat, 29 Aug 2020 11:58:16 +0000 (UTC) Received: from [192.168.38.17] (10.17.10.39) by ukex01.SolarFlarecom.com (10.17.10.4) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 29 Aug 2020 12:57:59 +0100 To: Ferruh Yigit , , Shepard Siegel , Ed Czeck , "John Miller" , Igor Russkikh , Pavel Belous , Somalapuram Amaranath , Ajit Khaparde , Somnath Kotur , Hemant Agrawal , Sachin Saxena , Wei Zhao , Jeff Guo , John Daley , Hyong Youb Kim , Qi Zhang , Xiao Wang , Beilei Xing , Jingjing Wu , Qiming Yang , Matan Azrad , Shahaf Shuler , "Viacheslav Ovsiienko" , Stephen Hemminger , "K. Y. Srinivasan" , "Haiyang Zhang" , Long Li , Heinrich Kuhn , Jerin Jacob , "Nithin Dabilpuram" , Kiran Kumar K , Rasesh Mody , Shahed Shaikh , Maciej Czekaj , Maxime Coquelin , Chenbo Xia , Zhihong Wang , Thomas Monjalon References: <20200824094021.2323605-1-ferruh.yigit@intel.com> <20200824094021.2323605-2-ferruh.yigit@intel.com> From: Andrew Rybchenko 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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<8da6077c-ab19-f819-3a3c-b4575bc512d9@solarflare.com> Date: Sat, 29 Aug 2020 14:57:55 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <20200824094021.2323605-2-ferruh.yigit@intel.com> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.17.10.39] X-ClientProxiedBy: ocex03.SolarFlarecom.com (10.20.40.36) To ukex01.SolarFlarecom.com (10.17.10.4) X-TM-AS-Product-Ver: SMEX-12.5.0.1300-8.6.1012-25632.006 X-TM-AS-Result: No-11.743400-8.000000-10 X-TMASE-MatchedRID: eVEkOcJu0F5XscJNCPoBHfZvT2zYoYOwC/ExpXrHizz5+tteD5RzhS+v uIlxSeaB9rPzdhi8p1MgGS2FgrwrNvUZjbWnwyrhVLRT+udwxzjy++SyyVe4t4vFa5XXUMbG/XV uIKGjhNqEq5pUnfriXVOw3pZ3A60DKerAqZTShjNj/0faIOjwJW9Xf86cwKVaRu2i7U96I/tcGw SRUEN3r4lALuPPk4yauUh+Til4IvMfxFWGlDTV3oJgHeALbaZ/eouvej40T4gHZBaLwEXlKGb6P phVtfZgRZg1t7YFW7nPDrpYeBAFb1z8fSQIk2LDUfqR39ZbIlV+jSWdx0YUUzbpMgyAfh26Ox/5 NUzZyllhhL+8zADGa5GTpe1iiCJq71zr0FZRMbBWdFebWIc3VsRB0bsfrpPIfiAqrjYtFiSnzX2 ODnvr43/V7QURqKWmyXrRdupKEwaay4r4eDgYtH7cGd19dSFd X-TM-AS-User-Approved-Sender: Yes X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--11.743400-8.000000 X-TMASE-Version: SMEX-12.5.0.1300-8.6.1012-25632.006 X-MDID: 1598702298-Sc2xLfYZ-19J Subject: Re: [dpdk-dev] [PATCH 2/7] ethdev: move inline device operations 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 8/24/20 12:40 PM, Ferruh Yigit wrote: > This patch is a preparation to hide the 'struct eth_dev_ops' from > applications by moving some device operations from 'struct eth_dev_ops' > to 'struct rte_eth_dev'. > > Mentioned ethdev APIs are in the data path and implemented as inline > because of performance reasons. > > Exposing 'struct eth_dev_ops' to applications is bad because it is a > contract between ethdev and PMDs, not really needs to be known by > applications, also changes in the struct causing ABI breakages which > shouldn't. > > To be able to both keep APIs inline and hide the 'struct eth_dev_ops', > moving device operations used in ethdev inline APIs to 'struct > rte_eth_dev' to the same level with Rx/Tx burst functions. > > The list of dev_ops moved: > eth_rx_queue_count_t rx_queue_count; > eth_rx_descriptor_status_t rx_descriptor_status; > eth_tx_descriptor_status_t tx_descriptor_status; > > Signed-off-by: Ferruh Yigit Reviewed-by: Andrew Rybchenko doc/guides/nics/features.rst should be updated since it says that status callbacks live in eth_dev_ops. plus an net/sfc-related nit below: [snip] > diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c > index 65e0ff7d48..0b06bf91a0 100644 > --- a/drivers/net/sfc/sfc_ethdev.c > +++ b/drivers/net/sfc/sfc_ethdev.c [snip] > @@ -1962,6 +1959,9 @@ sfc_eth_dev_set_ops(struct rte_eth_dev *dev) > dev->tx_pkt_burst = dp_tx->pkt_burst; > > dev->dev_ops = &sfc_eth_dev_ops; > + dev->rx_queue_count = sfc_rx_queue_count; > + dev->rx_descriptor_status = sfc_rx_descriptor_status; > + dev->tx_descriptor_status = sfc_tx_descriptor_status; May I ask to put it just after dev->tx_pkt_burst = ... line since these callbacks go before dev_ops in the structure. > > return 0; > > @@ -2001,9 +2001,6 @@ sfc_eth_dev_clear_ops(struct rte_eth_dev *dev) > > static const struct eth_dev_ops sfc_eth_dev_secondary_ops = { > .dev_supported_ptypes_get = sfc_dev_supported_ptypes_get, > - .rx_queue_count = sfc_rx_queue_count, > - .rx_descriptor_status = sfc_rx_descriptor_status, > - .tx_descriptor_status = sfc_tx_descriptor_status, > .reta_query = sfc_dev_rss_reta_query, > .rss_hash_conf_get = sfc_dev_rss_hash_conf_get, > .rxq_info_get = sfc_rx_queue_info_get, > @@ -2069,6 +2066,9 @@ sfc_eth_dev_secondary_init(struct rte_eth_dev *dev, uint32_t logtype_main) > dev->tx_pkt_prepare = dp_tx->pkt_prepare; > dev->tx_pkt_burst = dp_tx->pkt_burst; > dev->dev_ops = &sfc_eth_dev_secondary_ops; > + dev->rx_queue_count = sfc_rx_queue_count; > + dev->rx_descriptor_status = sfc_rx_descriptor_status; > + dev->tx_descriptor_status = sfc_tx_descriptor_status; Same here. [snip]