From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out30-130.freemail.mail.aliyun.com ([115.124.30.130]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nbwaa-003doB-CY for linux-um@lists.infradead.org; Wed, 06 Apr 2022 03:44:13 +0000 From: Xuan Zhuo Subject: [PATCH v9 08/32] virtio_ring: split: extract the logic of attach vring Date: Wed, 6 Apr 2022 11:43:22 +0800 Message-Id: <20220406034346.74409-9-xuanzhuo@linux.alibaba.com> In-Reply-To: <20220406034346.74409-1-xuanzhuo@linux.alibaba.com> References: <20220406034346.74409-1-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: Jeff Dike , Richard Weinberger , Anton Ivanov , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Hans de Goede , Mark Gross , Vadim Pasternak , Bjorn Andersson , Mathieu Poirier , Cornelia Huck , Halil Pasic , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Alexander Gordeev , Sven Schnelle , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Johannes Berg , 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 Separate the logic of attach vring, subsequent patches will call it separately. Signed-off-by: Xuan Zhuo --- drivers/virtio/virtio_ring.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 6de67439cb57..083f2992ba0d 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -916,6 +916,19 @@ static void *virtqueue_detach_unused_buf_split(struct virtqueue *_vq) return NULL; } +static void vring_virtqueue_attach_split(struct vring_virtqueue *vq, + struct vring vring, + struct vring_desc_state_split *desc_state, + struct vring_desc_extra *desc_extra) +{ + vq->split.vring = vring; + vq->split.queue_dma_addr = 0; + vq->split.queue_size_in_bytes = 0; + + vq->split.desc_state = desc_state; + vq->split.desc_extra = desc_extra; +} + static int vring_alloc_state_extra_split(u32 num, struct vring_desc_state_split **desc_state, struct vring_desc_extra **desc_extra) @@ -2262,10 +2275,6 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, if (virtio_has_feature(vdev, VIRTIO_F_ORDER_PLATFORM)) vq->weak_barriers = false; - vq->split.queue_dma_addr = 0; - vq->split.queue_size_in_bytes = 0; - - vq->split.vring = vring; vq->split.avail_flags_shadow = 0; vq->split.avail_idx_shadow = 0; @@ -2283,8 +2292,7 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, return NULL; } - vq->split.desc_state = state; - vq->split.desc_extra = extra; + vring_virtqueue_attach_split(vq, vring, state, extra); /* Put everything in free lists. */ vq->free_head = 0; -- 2.31.0 _______________________________________________ linux-um mailing list linux-um@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-um