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 smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 180BBC433EF for ; Wed, 9 Feb 2022 12:29:10 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id 7DBF482C18; Wed, 9 Feb 2022 12:29:10 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id VPLKGxbcwf3J; Wed, 9 Feb 2022 12:29:09 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp1.osuosl.org (Postfix) with ESMTPS id 3289A82A2D; Wed, 9 Feb 2022 12:29:09 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 0A516C0021; Wed, 9 Feb 2022 12:29:09 +0000 (UTC) Received: from smtp3.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists.linuxfoundation.org (Postfix) with ESMTP id 8A0C7C000B for ; Wed, 9 Feb 2022 12:29:07 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id 78D2960E2F for ; Wed, 9 Feb 2022 12:29:07 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id uaPtKK_oqyZn for ; Wed, 9 Feb 2022 12:29:06 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from out30-45.freemail.mail.aliyun.com (out30-45.freemail.mail.aliyun.com [115.124.30.45]) by smtp3.osuosl.org (Postfix) with ESMTPS id C894360B58 for ; Wed, 9 Feb 2022 12:29:05 +0000 (UTC) X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R171e4; CH=green; DM=||false|; DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=e01e04400; MF=xuanzhuo@linux.alibaba.com; NM=1; PH=DS; RN=4; SR=0; TI=SMTPD_---0V4.YQeC_1644409741; Received: from localhost(mailfrom:xuanzhuo@linux.alibaba.com fp:SMTPD_---0V4.YQeC_1644409741) by smtp.aliyun-inc.com(127.0.0.1); Wed, 09 Feb 2022 20:29:02 +0800 From: Xuan Zhuo To: linux-kernel@vger.kernel.org Subject: [PATCH v4 00/14] virtio pci support VIRTIO_F_RING_RESET Date: Wed, 9 Feb 2022 20:28:47 +0800 Message-Id: <20220209122901.51790-1-xuanzhuo@linux.alibaba.com> X-Mailer: git-send-email 2.31.0 MIME-Version: 1.0 Cc: virtualization@lists.linux-foundation.org, "Michael S. Tsirkin" 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" The virtio spec already supports the virtio queue reset function. This patch set is to add this function to the kernel. The relevant virtio spec information is here: https://github.com/oasis-tcs/virtio-spec/issues/124 Also regarding MMIO support for queue reset, I plan to support it after this patch is passed. Please review. Thanks. v4: 1. just the code of virtio, without virtio-net 2. Performing reset on a queue is divided into these steps: 1. reset_vq: reset one vq 2. recycle the buffer from vq by virtqueue_detach_unused_buf() 3. release the ring of the vq by vring_release_virtqueue() 4. enable_reset_vq: re-enable the reset queue 3. Simplify the parameters of enable_reset_vq() 4. add container structures for virtio_pci_common_cfg v3: 1. keep vq, irq unreleased Xuan Zhuo (14): virtio_pci: struct virtio_pci_common_cfg add queue_notify_data virtio: queue_reset: add VIRTIO_F_RING_RESET virtio_ring: queue_reset: add function vring_setup_virtqueue() virtio_ring: queue_reset: split: add __vring_init_virtqueue() virtio_ring: queue_reset: split: support enable reset queue virtio_ring: queue_reset: packed: support enable reset queue virtio_ring: queue_reset: extract the release function of the vq ring virtio_ring: queue_reset: add vring_release_virtqueue() virtio: queue_reset: struct virtio_config_ops add callbacks for queue_reset virtio_pci: queue_reset: update struct virtio_pci_common_cfg and option functions virtio_pci: queue_reset: release vq by vp_dev->vqs virtio_pci: queue_reset: setup_vq() support vring_setup_virtqueue() virtio_pci: queue_reset: vp_setup_vq() support ring_num virtio_pci: queue_reset: support VIRTIO_F_RING_RESET drivers/virtio/virtio_pci_common.c | 65 +++++++--- drivers/virtio/virtio_pci_common.h | 11 +- drivers/virtio/virtio_pci_legacy.c | 5 +- drivers/virtio/virtio_pci_modern.c | 99 ++++++++++++-- drivers/virtio/virtio_pci_modern_dev.c | 36 +++++ drivers/virtio/virtio_ring.c | 173 ++++++++++++++++++------- include/linux/virtio.h | 6 + include/linux/virtio_config.h | 13 ++ include/linux/virtio_pci_modern.h | 2 + include/linux/virtio_ring.h | 37 ++++-- include/uapi/linux/virtio_config.h | 7 +- include/uapi/linux/virtio_pci.h | 14 ++ 12 files changed, 375 insertions(+), 93 deletions(-) -- 2.31.0 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization