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 13B3DA0350; Tue, 23 Jun 2020 19:02:46 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id C88A71D6BC; Tue, 23 Jun 2020 19:02:44 +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 6C3871D6BA for ; Tue, 23 Jun 2020 19:02:43 +0200 (CEST) Received: from mx1-us1.ppe-hosted.com (unknown [10.7.65.64]) by dispatch1-us1.ppe-hosted.com (PPE Hosted ESMTP Server) with ESMTP id E1CB2600F8; Tue, 23 Jun 2020 17:02:42 +0000 (UTC) Received: from us4-mdac16-51.ut7.mdlocal (unknown [10.7.66.22]) by mx1-us1.ppe-hosted.com (PPE Hosted ESMTP Server) with ESMTP id DDABB2009B; Tue, 23 Jun 2020 17:02:42 +0000 (UTC) X-Virus-Scanned: Proofpoint Essentials engine Received: from mx1-us1.ppe-hosted.com (unknown [10.7.66.37]) by mx1-us1.ppe-hosted.com (PPE Hosted ESMTP Server) with ESMTPS id 3BCD522006F; Tue, 23 Jun 2020 17:02:42 +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 80EBEB40073; Tue, 23 Jun 2020 17:02:40 +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; Tue, 23 Jun 2020 18:02:31 +0100 To: David Marchand , CC: , , , , , , "Thomas Monjalon" , John McNamara , Marko Kovacevic , Anatoly Burakov , Olivier Matz , "Neil Horman" References: <20200610144506.30505-1-david.marchand@redhat.com> <20200622132531.21857-1-david.marchand@redhat.com> <20200622132531.21857-7-david.marchand@redhat.com> From: Andrew Rybchenko Autocrypt: addr=arybchenko@solarflare.com; keydata= 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X-ClientProxiedBy: ocex03.SolarFlarecom.com (10.20.40.36) To ukex01.SolarFlarecom.com (10.17.10.4) X-TM-AS-Product-Ver: SMEX-12.5.0.1300-8.5.1020-25498.003 X-TM-AS-Result: No-3.479900-8.000000-10 X-TMASE-MatchedRID: nVQUmLJJeyai6/VcDv9f0LDT1dbmL1eM69aS+7/zbj+qvcIF1TcLYD2j /N8mMgrkUjwC4PXX8Bq6/wFvLeWXhp+KMiQLDgrcLXh7qHsqP9FKuILn2p0SMn5Isu006IGGb8H BkjumKM86EDh28picBSvLzVwObg2vvQZhTFmx+8ieAiCmPx4NwLTrdaH1ZWqCZYJ9vPJ1vSDefx 4FmMaZTOTCMddcL/gjro1URZJFbJsjPE0HE//jXj6402oQq/gLM2r/XRySBCll9XXD6pEpeMTH9 0ifhjL0Tc9cSFpscB44JmQvGeyv996BG8flCWTAqkZqULNJ7HqFcgJc+QNMwu8bJovJYm8FYupx 0XjSQPLDOFVmKqGJ4bPn3tFon6UK X-TM-AS-User-Approved-Sender: Yes X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--3.479900-8.000000 X-TMASE-Version: SMEX-12.5.0.1300-8.5.1020-25498.003 X-MDID: 1592931762-mXDc-vFbzSYd Subject: Re: [dpdk-dev] [PATCH v3 6/9] eal: register non-EAL threads as lcores 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 6/22/20 4:25 PM, David Marchand wrote: > DPDK allows calling some part of its API from a non-EAL thread but this > has some limitations. > OVS (and other applications) has its own thread management but still > want to avoid such limitations by hacking RTE_PER_LCORE(_lcore_id) and > faking EAL threads potentially unknown of some DPDK component. > > Introduce a new API to register non-EAL thread and associate them to a > free lcore with a new NON_EAL role. > This role denotes lcores that do not run DPDK mainloop and as such > prevents use of rte_eal_wait_lcore() and consorts. > > Signed-off-by: David Marchand Acked-by: Andrew Rybchenko