From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out30-133.freemail.mail.aliyun.com ([115.124.30.133]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oGEuC-009L14-Lc for linux-um@lists.infradead.org; Tue, 26 Jul 2022 07:23:02 +0000 From: Xuan Zhuo Subject: [PATCH v13 13/42] virtio_ring: split: extract the logic of attach vring Date: Tue, 26 Jul 2022 15:21:56 +0800 Message-Id: <20220726072225.19884-14-xuanzhuo@linux.alibaba.com> In-Reply-To: <20220726072225.19884-1-xuanzhuo@linux.alibaba.com> References: <20220726072225.19884-1-xuanzhuo@linux.alibaba.com> MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-um" Errors-To: linux-um-bounces+geert=linux-m68k.org@lists.infradead.org To: virtualization@lists.linux-foundation.org Cc: Richard Weinberger , Anton Ivanov , Johannes Berg , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Hans de Goede , Mark Gross , Vadim Pasternak , Bjorn Andersson , Mathieu Poirier , Cornelia Huck , Halil Pasic , Eric Farman , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Xuan Zhuo , Vincent Whitchurch , linux-um@lists.infradead.org, netdev@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-s390@vger.kernel.org, kvm@vger.kernel.org, bpf@vger.kernel.org, kangjie.xu@linux.alibaba.com Separate the logic of attach vring, subsequent patches will call it separately. virtqueue_vring_init_split() completes the initialization of other variables of vring split. We can directly use vq->split = *vring_split to complete attach. Signed-off-by: Xuan Zhuo Acked-by: Jason Wang --- drivers/virtio/virtio_ring.c | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index ac973887484f..2067818f7047 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -967,6 +967,12 @@ static void virtqueue_vring_init_split(struct vring_virtqueue_split *vring_split } } +static void virtqueue_vring_attach_split(struct vring_virtqueue *vq, + struct vring_virtqueue_split *vring_split) +{ + vq->split = *vring_split; +} + static int vring_alloc_state_extra_split(struct vring_virtqueue_split *vring_split) { struct vring_desc_state_split *state; @@ -1077,8 +1083,6 @@ static struct virtqueue *vring_create_virtqueue_split( return NULL; } - to_vvq(vq)->split.queue_dma_addr = vring_split.queue_dma_addr; - to_vvq(vq)->split.queue_size_in_bytes = vring_split.queue_size_in_bytes; to_vvq(vq)->we_own_ring = true; return vq; @@ -2314,23 +2318,16 @@ static struct virtqueue *__vring_new_virtqueue(unsigned int index, vq->indirect = virtio_has_feature(vdev, VIRTIO_RING_F_INDIRECT_DESC) && !context; - vq->split.queue_dma_addr = 0; - vq->split.queue_size_in_bytes = 0; - - vq->split.vring = vring_split->vring; - err = vring_alloc_state_extra_split(vring_split); if (err) { kfree(vq); return NULL; } - vq->split.desc_state = vring_split->desc_state; - vq->split.desc_extra = vring_split->desc_extra; - virtqueue_vring_init_split(vring_split, vq); virtqueue_init(vq, vring_split->vring.num); + virtqueue_vring_attach_split(vq, vring_split); spin_lock(&vdev->vqs_list_lock); list_add_tail(&vq->vq.list, &vdev->vqs); -- 2.31.0 _______________________________________________ linux-um mailing list linux-um@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-um