From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 53725C433E1 for ; Mon, 3 Aug 2020 20:51:41 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5217C22BF3 for ; Mon, 3 Aug 2020 20:51:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Raaiul7K" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5217C22BF3 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=virtualization-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 0DF7485B78; Mon, 3 Aug 2020 20:51:41 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Jfk_EFyEZ0Fj; Mon, 3 Aug 2020 20:51:40 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by fraxinus.osuosl.org (Postfix) with ESMTP id 4B1A485AE4; Mon, 3 Aug 2020 20:51:40 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 3792CC0050; Mon, 3 Aug 2020 20:51:40 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 6287DC004C for ; Mon, 3 Aug 2020 20:51:38 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id 4B69C86A98 for ; Mon, 3 Aug 2020 20:51:38 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7qZH1oo6mfi8 for ; Mon, 3 Aug 2020 20:51:37 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [207.211.31.120]) by hemlock.osuosl.org (Postfix) with ESMTPS id 8586F86864 for ; Mon, 3 Aug 2020 20:51:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1596487896; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=N1E7lzDQVWdMD9MkNgS4uGg4D78Cpm6TklUaGLBV5l4=; b=Raaiul7KBBMRDL0WRypuHd0pAph3JHUfwjwwkE5+jXoJzdOLxszDMb7XhBX3DLdf08lAER XNsfud2NjotCzrbwH35b7+4m2ZBEqvocF1n1B/BVsWKXcz/aQK4GQlUx4fodD+kpluaGk1 cH26HJ5cZ8WHH/CU8I45b1/Y+AdXzXw= Received: from mail-qv1-f70.google.com (mail-qv1-f70.google.com [209.85.219.70]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-477-wuXpyKg6MASzcPSsa2w-ZQ-1; Mon, 03 Aug 2020 16:51:33 -0400 X-MC-Unique: wuXpyKg6MASzcPSsa2w-ZQ-1 Received: by mail-qv1-f70.google.com with SMTP id c4so4717357qvq.15 for ; Mon, 03 Aug 2020 13:51:33 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=N1E7lzDQVWdMD9MkNgS4uGg4D78Cpm6TklUaGLBV5l4=; b=BHxnwiP+3fnGi7a3TCzLLQkUA6clAE4fM96ioQpse0g4l1rXg9aRDSVzLZ/OaUuCjI OiO79qUXhMQ1e36wYX4+322XANTaMSi9PQRq4dy03PImPie87I3Yrhc/vw3CeQGdqNVF 8mT9uIFYMN48bhnrm5uClVjiS7TsWvXOPQ0wiqJXQvPbnt6Y3Y3HjKS8vxrN8Axw9WoQ HZhXguw0g7z2wWvowpqmTPK5La1gKW0LCWtDm1X6Q3kKxhHA5XNEgOEm12OaZaG1DkSC L8NrE3yLG7J00m1tFnDque0jM59cHUv5dC9X3s0ny933osj+9ZZsFUbrx2AyWNi5Zz/T ANYQ== X-Gm-Message-State: AOAM533BQmxi/mcxd8n/hmuTCejE/orbfv8cO8qnJyCuzr75FWjx8P0W ejcFEUmQxOJLWhcCEC1Vs6K/GvoDrKcINsg+mymwDsfw+bB5inKYjxEW0Y9fWwRT7OwSWyPO4aO FLvK1BLULxWHq7V6gXA6KqstAJB8D8WkEZPb7z7Glvw== X-Received: by 2002:ae9:ed8e:: with SMTP id c136mr18693774qkg.246.1596487893339; Mon, 03 Aug 2020 13:51:33 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwtEVkhwhTJtr/aA7f88MqZF1BQOqNVMP1FacUjc/yOYNHz1RzD2pTTEqVY+lCyvRSo/TtJOg== X-Received: by 2002:ae9:ed8e:: with SMTP id c136mr18693752qkg.246.1596487893054; Mon, 03 Aug 2020 13:51:33 -0700 (PDT) Received: from redhat.com (bzq-79-177-102-128.red.bezeqint.net. [79.177.102.128]) by smtp.gmail.com with ESMTPSA id p194sm19451914qke.16.2020.08.03.13.51.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Aug 2020 13:51:32 -0700 (PDT) Date: Mon, 3 Aug 2020 16:51:27 -0400 From: "Michael S. Tsirkin" To: Eli Cohen Subject: Re: [PATCH V3 vhost next 00/10] VDPA support for Mellanox ConnectX devices Message-ID: <20200803164756-mutt-send-email-mst@kernel.org> References: <20200728060539.4163-1-eli@mellanox.com> MIME-Version: 1.0 In-Reply-To: <20200728060539.4163-1-eli@mellanox.com> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline Cc: shahafs@mellanox.com, parav@mellanox.com, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, saeedm@mellanox.com X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" On Tue, Jul 28, 2020 at 09:05:29AM +0300, Eli Cohen wrote: > Hi Michael, > please note that this series depends on mlx5 core device driver patches > in mlx5-next branch in > git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git. > git pull git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git mlx5-next > > They also depend Jason Wang's patches submitted a couple of weeks ago. > > vdpa_sim: use the batching API > vhost-vdpa: support batch updating Hmm this makes merging them messy. I can ack merging them through the mellanox tree, but conflicts between Jason's patches and what's in my tree also exist. How big is the dependency? Can I pick it up with your ack? Also, mips build failures need to be dealt with. > > > The following series of patches provide VDPA support for Mellanox > devices. The supported devices are ConnectX6 DX and newer. > > Currently, only a network driver is implemented; future patches will > introduce a block device driver. iperf performance on a single queue is > around 12 Gbps. Future patches will introduce multi queue support. > > The files are organized in such a way that code that can be used by > different VDPA implementations will be placed in a common are resides in > drivers/vdpa/mlx5/core. > > Only virtual functions are currently supported. Also, certain firmware > capabilities must be set to enable the driver. Physical functions (PFs) > are skipped by the driver. > > To make use of the VDPA net driver, one must load mlx5_vdpa. In such > case, VFs will be operated by the VDPA driver. Although one can see a > regular instance of a network driver on the VF, the VDPA driver takes > precedence over the NIC driver, steering-wize. > > Currently, the device/interface infrastructure in mlx5_core is used to > probe drivers. Future patches will introduce virtbus as a means to > register devices and drivers and VDPA will be adapted to it. > > The mlx5 mode of operation required to support VDPA is switchdev mode. > Once can use Linux or OVS bridge to take care of layer 2 switching. > > In order to provide virtio networking to a guest, an updated version of > qemu is required. This version has been tested by the following quemu > version: > > url: https://github.com/jasowang/qemu.git > branch: vdpa > Commit ID: 6f4e59b807db > > > V2->V3 > Fix makefile to use include path relative to the root of the kernel > > Eli Cohen (7): > net/vdpa: Use struct for set/get vq state > vhost: Fix documentation > vdpa: Modify get_vq_state() to return error code > vdpa/mlx5: Add hardware descriptive header file > vdpa/mlx5: Add support library for mlx5 VDPA implementation > vdpa/mlx5: Add shared memory registration code > vdpa/mlx5: Add VDPA driver for supported mlx5 devices > > Jason Wang (2): > vhost-vdpa: support batch updating > vdpa_sim: use the batching API > > Max Gurtovoy (1): > vdpa: remove hard coded virtq num > > drivers/vdpa/Kconfig | 18 + > drivers/vdpa/Makefile | 1 + > drivers/vdpa/ifcvf/ifcvf_base.c | 4 +- > drivers/vdpa/ifcvf/ifcvf_base.h | 4 +- > drivers/vdpa/ifcvf/ifcvf_main.c | 13 +- > drivers/vdpa/mlx5/Makefile | 4 + > drivers/vdpa/mlx5/core/mlx5_vdpa.h | 91 ++ > drivers/vdpa/mlx5/core/mlx5_vdpa_ifc.h | 168 ++ > drivers/vdpa/mlx5/core/mr.c | 473 ++++++ > drivers/vdpa/mlx5/core/resources.c | 284 ++++ > drivers/vdpa/mlx5/net/main.c | 76 + > drivers/vdpa/mlx5/net/mlx5_vnet.c | 1950 ++++++++++++++++++++++++ > drivers/vdpa/mlx5/net/mlx5_vnet.h | 24 + > drivers/vdpa/vdpa.c | 3 + > drivers/vdpa/vdpa_sim/vdpa_sim.c | 35 +- > drivers/vhost/iotlb.c | 4 +- > drivers/vhost/vdpa.c | 46 +- > include/linux/vdpa.h | 24 +- > include/uapi/linux/vhost_types.h | 2 + > 19 files changed, 3165 insertions(+), 59 deletions(-) > create mode 100644 drivers/vdpa/mlx5/Makefile > create mode 100644 drivers/vdpa/mlx5/core/mlx5_vdpa.h > create mode 100644 drivers/vdpa/mlx5/core/mlx5_vdpa_ifc.h > create mode 100644 drivers/vdpa/mlx5/core/mr.c > create mode 100644 drivers/vdpa/mlx5/core/resources.c > create mode 100644 drivers/vdpa/mlx5/net/main.c > create mode 100644 drivers/vdpa/mlx5/net/mlx5_vnet.c > create mode 100644 drivers/vdpa/mlx5/net/mlx5_vnet.h > > -- > 2.26.0 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization