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[23.128.96.18]) by mx.google.com with ESMTP id hp1si27140275ejc.568.2021.11.01.00.05.23; Mon, 01 Nov 2021 00:05:48 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=bxvJXoyy; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230307AbhKAHFk (ORCPT + 99 others); Mon, 1 Nov 2021 03:05:40 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:46105 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229938AbhKAHFj (ORCPT ); Mon, 1 Nov 2021 03:05:39 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1635750186; 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=8nIZ9XZS8kXj/EsotjjSLAWLpZa2G0PtCLWtzDmN8pk=; b=bxvJXoyyQ2ds3jPGaHKyj1ohWedjfkEeK2zmsXgEoFDEqxs4aTOGmrfniGlv6J/nWpSPVF GqSIV52c2Mbo89R/FnoKzXeJMVdVZ8IDj17hMqedXAPksYulmtzfxmYedkMITsAcjA47IH wt3TdumGpog8zo8WJJ1OExH2BLjTx+4= Received: from mail-lf1-f69.google.com (mail-lf1-f69.google.com [209.85.167.69]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-366-jk5mEDR6NT2JZ0k2CZWP7Q-1; Mon, 01 Nov 2021 03:03:05 -0400 X-MC-Unique: jk5mEDR6NT2JZ0k2CZWP7Q-1 Received: by mail-lf1-f69.google.com with SMTP id c13-20020a05651200cd00b004001aab328aso205687lfp.1 for ; Mon, 01 Nov 2021 00:03:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=8nIZ9XZS8kXj/EsotjjSLAWLpZa2G0PtCLWtzDmN8pk=; b=1fjoBdeJNaKu1KGiS36oJgd2A3u7whZIvByQjXyLAXpkry+pNzy8UTL4W/0Gz91vh0 dOZxsDYM6NABRUZ84/ZzC0pmHJsZ0xrrgj6Q05m5R+RUqbiHQXbdhtSXRtSYlQ20Vcs2 MGoHdeVDv9FRbu4wof1B9esFKWImmVCncExH/tfxTydb8owxbEP+z0tRZjBBCQiJvm5P Q7A1rBdXe/Wi8VJk1YlomT1E0qBd4pr5vCMt38XH/LJSN7fdWlpeYnfypATiseuFzT8p H/v0z3DJZvnBlW8BWgzTJpvpOUvQ5WajzBko9VL26U1QDynqUPwD5narUgXqnRws/el9 hIPg== X-Gm-Message-State: AOAM530fCt97meAqYFtrz9wD4sRvmxOOALzGkWDOdPAGytwDDB8y1i1E hvmXLfimV94keriCLb8CvK40UX0xvWGnToyUIHkSxFxple8PTxdnmkYTQv/WgBk75fYTwFm3ffB o38GXMMR6M780reoGtmO1cJSzSbrEiJzXWHOdigit X-Received: by 2002:a05:6512:32c1:: with SMTP id f1mr26983587lfg.498.1635750183492; Mon, 01 Nov 2021 00:03:03 -0700 (PDT) X-Received: by 2002:a05:6512:32c1:: with SMTP id f1mr26983574lfg.498.1635750183286; Mon, 01 Nov 2021 00:03:03 -0700 (PDT) MIME-Version: 1.0 References: <20211101062250.GA29814@L-PF27918B-1352.localdomain> In-Reply-To: <20211101062250.GA29814@L-PF27918B-1352.localdomain> From: Jason Wang Date: Mon, 1 Nov 2021 15:02:52 +0800 Message-ID: Subject: Re: [PATCH v7 0/9] vDPA driver for Alibaba ENI To: Wu Zongyong Cc: virtualization , linux-kernel , mst , wei.yang1@linux.alibaba.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Nov 1, 2021 at 2:23 PM Wu Zongyong wrote: > > On Mon, Nov 01, 2021 at 11:31:15AM +0800, Jason Wang wrote: > > On Fri, Oct 29, 2021 at 5:15 PM Wu Zongyong > > wrote: > > > > > > This series implements the vDPA driver for Alibaba ENI (Elastic Network > > > Interface) which is built based on virtio-pci 0.9.5 specification. > > > > It looks to me Michael has applied the patches, if this is the case, > > we probably need to send patches on top. > > What do you mean by saying "send patches on top"? > Sorry, I'm a newbie to contribute for kernel, could you please explain > it in detail? I meant you probably need to send incremental patch on top of: git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next. Thanks > > Thanks > > Thanks > > > > > > > > Changes since V6: > > > - set default min vq size to 1 intead of 0 > > > - enable eni vdpa driver only on X86 hosts > > > - fix some typos > > > > > > Changes since V5: > > > - remove unused codes > > > > > > Changes since V4: > > > - check return values of get_vq_num_{max,min} when probing devices > > > - disable the driver on BE host via Kconfig > > > - add missing commit message > > > > > > Changes since V3: > > > - validate VIRTIO_NET_F_MRG_RXBUF when negotiate features > > > - present F_ORDER_PLATFORM in get_features > > > - remove endian check since ENI always use litter endian > > > > > > Changes since V2: > > > - add new attribute VDPA_ATTR_DEV_MIN_VQ_SIZE instead > > > VDPA_ATTR_DEV_F_VERSION_1 to guide users to choose correct virtqueue > > > size as suggested by Jason Wang > > > - present ACCESS_PLATFORM in get_features callback as suggested by Jason > > > Wang > > > - disable this driver on Big Endian host as suggested by Jason Wang > > > - fix a typo > > > > > > Changes since V1: > > > - add new vdpa attribute VDPA_ATTR_DEV_F_VERSION_1 to indicate whether > > > the vdpa device is legacy > > > - implement dedicated driver for Alibaba ENI instead a legacy virtio-pci > > > driver as suggested by Jason Wang > > > - some bugs fixed > > > > > > Wu Zongyong (9): > > > virtio-pci: introduce legacy device module > > > vdpa: fix typo > > > vp_vdpa: add vq irq offloading support > > > vdpa: add new callback get_vq_num_min in vdpa_config_ops > > > vdpa: min vq num of vdpa device cannot be greater than max vq num > > > virtio_vdpa: setup correct vq size with callbacks get_vq_num_{max,min} > > > vdpa: add new attribute VDPA_ATTR_DEV_MIN_VQ_SIZE > > > eni_vdpa: add vDPA driver for Alibaba ENI > > > eni_vdpa: alibaba: fix Kconfig typo > > > > > > drivers/vdpa/Kconfig | 8 + > > > drivers/vdpa/Makefile | 1 + > > > drivers/vdpa/alibaba/Makefile | 3 + > > > drivers/vdpa/alibaba/eni_vdpa.c | 553 +++++++++++++++++++++++++ > > > drivers/vdpa/vdpa.c | 13 + > > > drivers/vdpa/virtio_pci/vp_vdpa.c | 12 + > > > drivers/virtio/Kconfig | 10 + > > > drivers/virtio/Makefile | 1 + > > > drivers/virtio/virtio_pci_common.c | 10 +- > > > drivers/virtio/virtio_pci_common.h | 9 +- > > > drivers/virtio/virtio_pci_legacy.c | 101 ++--- > > > drivers/virtio/virtio_pci_legacy_dev.c | 220 ++++++++++ > > > drivers/virtio/virtio_vdpa.c | 16 +- > > > include/linux/vdpa.h | 6 +- > > > include/linux/virtio_pci_legacy.h | 42 ++ > > > include/uapi/linux/vdpa.h | 1 + > > > 16 files changed, 917 insertions(+), 89 deletions(-) > > > create mode 100644 drivers/vdpa/alibaba/Makefile > > > create mode 100644 drivers/vdpa/alibaba/eni_vdpa.c > > > create mode 100644 drivers/virtio/virtio_pci_legacy_dev.c > > > create mode 100644 include/linux/virtio_pci_legacy.h > > > > > > -- > > > 2.31.1 > > > >