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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 689DDC433F5 for ; Fri, 29 Oct 2021 09:15:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4D41F610CB for ; Fri, 29 Oct 2021 09:15:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231519AbhJ2JRh (ORCPT ); Fri, 29 Oct 2021 05:17:37 -0400 Received: from out30-45.freemail.mail.aliyun.com ([115.124.30.45]:34688 "EHLO out30-45.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229986AbhJ2JRc (ORCPT ); Fri, 29 Oct 2021 05:17:32 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R711e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04423;MF=wuzongyong@linux.alibaba.com;NM=1;PH=DS;RN=6;SR=0;TI=SMTPD_---0Uu7wNNx_1635498896; Received: from localhost.localdomain(mailfrom:wuzongyong@linux.alibaba.com fp:SMTPD_---0Uu7wNNx_1635498896) by smtp.aliyun-inc.com(127.0.0.1); Fri, 29 Oct 2021 17:15:02 +0800 From: Wu Zongyong To: jasowang@redhat.com, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org, mst@redhat.com, wuzongyong@linux.alibaba.com Cc: wei.yang1@linux.alibaba.com Subject: [PATCH v7 0/9] vDPA driver for Alibaba ENI Date: Fri, 29 Oct 2021 17:14:41 +0800 Message-Id: X-Mailer: git-send-email 2.31.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series implements the vDPA driver for Alibaba ENI (Elastic Network Interface) which is built based on virtio-pci 0.9.5 specification. 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