From mboxrd@z Thu Jan 1 00:00:00 1970 From: Huawei@dpdk.org, Xie@dpdk.org Subject: [PATCH] virtio: fix virtio_net_hdr desc pointing to the same buffer Date: Fri, 11 Dec 2015 01:57:17 +0800 Message-ID: <1449770240-103240-3-git-send-email-huawei.xie@intel.com> References: <1449770240-103240-1-git-send-email-huawei.xie@intel.com> To: dev@dpdk.org Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id E831B8E7B for ; Fri, 11 Dec 2015 10:52:16 +0100 (CET) In-Reply-To: <1449770240-103240-1-git-send-email-huawei.xie@intel.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" The virtio_net_hdr desc all pointed to the same buffer. It doesn't cause issue because in the simple TX mode we don't use the header. This patch makes the header desc point to different buffer. Signed-off-by: Huawei Xie --- drivers/net/virtio/virtio_rxtx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c index 74b39ef..6cfd315 100644 --- a/drivers/net/virtio/virtio_rxtx.c +++ b/drivers/net/virtio/virtio_rxtx.c @@ -352,7 +352,7 @@ virtio_dev_vring_start(struct virtqueue *vq, int queue_type) vq->vq_ring.desc[i + mid_idx].next = i; vq->vq_ring.desc[i + mid_idx].addr = vq->virtio_net_hdr_mem + - mid_idx * vq->hw->vtnet_hdr_size; + i * vq->hw->vtnet_hdr_size; vq->vq_ring.desc[i + mid_idx].len = vq->hw->vtnet_hdr_size; vq->vq_ring.desc[i + mid_idx].flags = -- 1.8.1.4