From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ouyang Changchun Subject: [PATCH v4 25/26] virtio: Fix wmb issue Date: Mon, 9 Feb 2015 09:14:14 +0800 Message-ID: <1423444455-11330-26-git-send-email-changchun.ouyang@intel.com> References: <1422516249-14596-1-git-send-email-changchun.ouyang@intel.com> <1423444455-11330-1-git-send-email-changchun.ouyang@intel.com> To: dev-VfR2kkLFssw@public.gmane.org Return-path: In-Reply-To: <1423444455-11330-1-git-send-email-changchun.ouyang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" It needs use virtio_wmb instead of virtio_rmb for store memory barrier. Signed-off-by: Changchun Ouyang --- lib/librte_pmd_virtio/virtqueue.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/librte_pmd_virtio/virtqueue.h b/lib/librte_pmd_virtio/virtqueue.h index 6c45c27..41dda50 100644 --- a/lib/librte_pmd_virtio/virtqueue.h +++ b/lib/librte_pmd_virtio/virtqueue.h @@ -266,7 +266,7 @@ virtqueue_full(const struct virtqueue *vq) static inline void vq_update_avail_idx(struct virtqueue *vq) { - virtio_rmb(); + virtio_wmb(); vq->vq_ring.avail->idx = vq->vq_avail_idx; } -- 1.8.4.2