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 3A9E2A0353; Tue, 5 Nov 2019 12:49:49 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 6012F2BF9; Tue, 5 Nov 2019 12:49:48 +0100 (CET) Received: from dispatch1-us1.ppe-hosted.com (dispatch1-us1.ppe-hosted.com [67.231.154.164]) by dpdk.org (Postfix) with ESMTP id 55F342BE5 for ; Tue, 5 Nov 2019 12:49:47 +0100 (CET) X-Virus-Scanned: Proofpoint Essentials engine 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-us5.ppe-hosted.com (PPE Hosted ESMTP Server) with ESMTPS id 16B6F58005C; Tue, 5 Nov 2019 11:49:28 +0000 (UTC) Received: from [192.168.38.17] (91.220.146.112) by ukex01.SolarFlarecom.com (10.17.10.4) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 5 Nov 2019 11:49:22 +0000 To: Ori Kam , Ferruh Yigit , "John McNamara" , Marko Kovacevic , Thomas Monjalon CC: "dev@dpdk.org" , "jingjing.wu@intel.com" , "stephen@networkplumber.org" , Jerin Jacob References: <1569479349-36962-1-git-send-email-orika@mellanox.com> <1572479604-178752-1-git-send-email-orika@mellanox.com> <1572479604-178752-3-git-send-email-orika@mellanox.com> <10616bdb-4314-833e-d05e-ab5674763ae1@intel.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 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S0PkBvFD2+0zr5Bc2YkMGPBYPNGZiTp3UjmZlLfn3TiBKIC92jherY563CULjSsiBEJCOSvv 4VPLn5aAcfbCXJnE3IGCp/hPl50iQqu7BPOYBbWXeb9ptDjGCAThNxSz0WAXkmcjAFE8gdE6 Znk9 Message-ID: <676258d8-83e6-754c-681e-1e60099f4b31@solarflare.com> Date: Tue, 5 Nov 2019 14:49:18 +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: Content-Type: text/plain; charset="utf-8" Content-Language: en-GB Content-Transfer-Encoding: 7bit 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-12.5.0.1300-8.5.1010-25022.003 X-TM-AS-Result: No-17.092900-8.000000-10 X-TMASE-MatchedRID: gjZGo2H/wj/mLzc6AOD8DfHkpkyUphL9Ud7Bjfo+5jRG7aLtT3oj+3Rt l8qZJtWDFLhZwO4R7Wl/LkiWdqmTSjaN5j5R2D8idPuue3cRiRjmP4XGEn488bLWf00E+3M1aXK zU8OFYuh0nTHNwQHKQVv02teuuNjEHY/bzRmIaZFIcJTn2HkqsZtglMvynACe2pSaXhW9wNhKj9 RzqMBfu7SEri9Arh1XUOiPryq9tF8n9mUdIG8uvEUQ6wx4cnw3v8jdqvFOu+Knk8VVpU1FNvi/Q OHQsjAJu3HgCknMl73U1g4lO1dF7TyRomZ34tWE9VjtTc1fwmB9iuvWn3J8KiUQ+FwDMzgqMH1x x17eFtQXVqnrXSbN4kk/AQNh1sYA/wc4BmSs8N1ZMZ6MZ0H1UlQhqd4OP4Y7H6ZaHC0zQRLhry2 NwTSXHO54Q7WqUfiUUNzVbTzIr8OQrnIlmmx0BD42t8NRMRfElZnydB88IJIkt9BigJAcVlfLNr YZX+GbzMgRh1VxVA6Rk6XtYogiau9c69BWUTGwRjjVhf+j/wobOWTCbQ0WqBd65AKojGV5IAcCi kR3vq9prcD9+rE96U84kfTM/t0Ll1w0lQRdnFMM4Y/8w1U4CjV0YnmwfRHJ X-TM-AS-User-Approved-Sender: Yes X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--17.092900-8.000000 X-TMASE-Version: SMEX-12.5.0.1300-8.5.1010-25022.003 X-MDID: 1572954586-7ULEq7-KudeH Subject: Re: [dpdk-dev] [PATCH v7 02/14] ethdev: add support for hairpin queue 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 11/5/19 2:36 PM, Ori Kam wrote: > > >> -----Original Message----- >> From: Ferruh Yigit >> Sent: Tuesday, November 5, 2019 1:25 PM >> To: Ori Kam ; John McNamara >> ; Marko Kovacevic >> ; Thomas Monjalon ; >> Andrew Rybchenko >> Cc: dev@dpdk.org; jingjing.wu@intel.com; stephen@networkplumber.org; Jerin >> Jacob >> Subject: Re: [PATCH v7 02/14] ethdev: add support for hairpin queue >> >> On 10/30/2019 11:53 PM, Ori Kam wrote: >>> This commit introduce hairpin queue type. >>> >>> The hairpin queue in build from Rx queue binded to Tx queue. >>> It is used to offload traffic coming from the wire and redirect it back >>> to the wire. >>> >>> There are 3 new functions: >>> - rte_eth_dev_hairpin_capability_get >>> - rte_eth_rx_hairpin_queue_setup >>> - rte_eth_tx_hairpin_queue_setup >>> >>> In order to use the queue, there is a need to create rte_flow >>> with queue / RSS action that targets one or more of the Rx queues. >>> >>> Signed-off-by: Ori Kam >>> Reviewed-by: Andrew Rybchenko >> >> <...> >> >>> #include >>> >>> /** >>> + * @internal >>> + * Check if the selected Rx queue is hairpin queue. >>> + * >>> + * @param dev >>> + * Pointer to the selected device. >>> + * @param queue_id >>> + * The selected queue. >>> + * >>> + * @return >>> + * - (1) if the queue is hairpin queue, 0 otherwise. >>> + */ >>> +int >>> +rte_eth_dev_is_rx_hairpin_queue(struct rte_eth_dev *dev, uint16_t >> queue_id); >>> + >>> +/** >>> + * @internal >>> + * Check if the selected Tx queue is hairpin queue. >>> + * >>> + * @param dev >>> + * Pointer to the selected device. >>> + * @param queue_id >>> + * The selected queue. >>> + * >>> + * @return >>> + * - (1) if the queue is hairpin queue, 0 otherwise. >>> + */ >>> +int >>> +rte_eth_dev_is_tx_hairpin_queue(struct rte_eth_dev *dev, uint16_t >> queue_id); >>> + >>> +/** >> >> If these functions are internal why there are in 'rte_ethdev.h' ? >> >>> * >>> * Retrieve a burst of input packets from a receive queue of an Ethernet >>> * device. The retrieved packets are stored in *rte_mbuf* structures whose >>> @@ -4251,6 +4400,11 @@ int rte_eth_dev_adjust_nb_rx_tx_desc(uint16_t >> port_id, >>> RTE_ETHDEV_LOG(ERR, "Invalid RX queue_id=%u\n", >> queue_id); >>> return 0; >>> } >>> + if (rte_eth_dev_is_rx_hairpin_queue(dev, queue_id)) { >>> + RTE_ETHDEV_LOG(ERR, "Rx burst failed, queue_id=%u is >> hairpin queue\n", >>> + queue_id); >>> + return 0; >>> + } >>> #endif >>> nb_rx = (*dev->rx_pkt_burst)(dev->data->rx_queues[queue_id], >>> rx_pkts, nb_pkts); >>> @@ -4517,6 +4671,11 @@ static inline int >> rte_eth_tx_descriptor_status(uint16_t port_id, >>> RTE_ETHDEV_LOG(ERR, "Invalid TX queue_id=%u\n", >> queue_id); >>> return 0; >>> } >>> + if (rte_eth_dev_is_tx_hairpin_queue(dev, queue_id)) { >>> + RTE_ETHDEV_LOG(ERR, "Tx burst failed, queue_id=%u is >> hairpin queue\n", >>> + queue_id); >>> + return 0; >>> + } >>> #endif >> >> Hi Ori, >> >> These are causing build error, thanks Jerin for catching, because they are >> internal and called by a public static inline API, so whoever calls >> 'rte_eth_rx/tx_burst()' APIs in the shared build, can't find >> 'rte_eth_dev_is_rx/tx_hairpin_queue()' functions [1], >> >> as far as I can see there are two options: >> 1) Remove these checks >> 2) Make 'rte_eth_dev_is_rx/tx_hairpin_queue()' public API instead of internal >> >> If there is a value to make 'rte_eth_dev_is_rx/tx_hairpin_queue()' public API >> we >> should go with (2) else (1). >> > > I think we can skip the tests, > But it was Andrew request so we must get is response. > It was also his empathies that they should be internal. It is important for me to keep rte_eth_dev_state internal and few patches ago rte_eth_dev_is_rx_hairpin_queue() was inline. I'm OK to make the function experimental or keep it internal (no API/ABI stability requirements) but externally visible (in .map). >> [1] >> /usr/bin/ld: rte_event_eth_rx_adapter.o: in function `rxa_eth_rx': >> rte_event_eth_rx_adapter.c:(.text+0x1728): undefined reference to >> `rte_eth_dev_is_rx_hairpin_queue' >> /usr/bin/ld: rte_event_eth_rx_adapter.o: in function `rxa_service_func': >> rte_event_eth_rx_adapter.c:(.text+0x22ab): undefined reference to >> `rte_eth_dev_is_rx_hairpin_queue' >> /usr/bin/ld: rte_event_eth_tx_adapter.o: in function `txa_service_buffer_retry': >> rte_event_eth_tx_adapter.c:(.text+0xa43): undefined reference to >> `rte_eth_dev_is_tx_hairpin_queue' >> /usr/bin/ld: rte_event_eth_tx_adapter.o: in function `txa_service_func': >> rte_event_eth_tx_adapter.c:(.text+0xe7d): undefined reference to >> `rte_eth_dev_is_tx_hairpin_queue' >> /usr/bin/ld: rte_event_eth_tx_adapter.c:(.text+0x1155): undefined reference to >> `rte_eth_dev_is_tx_hairpin_queue' >> collect2: error: ld returned 1 exit status