From: "Tan, Jianfeng" <jianfeng.tan@intel.com>
To: "dev@dpdk.org" <dev@dpdk.org>, "Xie, Huawei" <huawei.xie@intel.com>
Subject: Re: [dpdk-dev] [PATCH] virtio: fix virtio_net_hdr desc pointing to the same buffer
Date: Mon, 14 Dec 2015 01:35:07 +0000 [thread overview]
Message-ID: <ED26CBA2FAD1BF48A8719AEF02201E366726F6@SHSMSX103.ccr.corp.intel.com> (raw)
In-Reply-To: <1449763652-86292-1-git-send-email-huawei.xie@intel.com>
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Huawei@dpdk.org
> Sent: Friday, December 11, 2015 12:08 AM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH] virtio: fix virtio_net_hdr desc pointing to the
> same buffer
>
> 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 <huawei.xie@intel.com>
> ---
> 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
Acked-by: Jianfeng Tan <Jianfeng.tan@intel.com>
Thanks!
next prev parent reply other threads:[~2015-12-14 1:35 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-10 16:07 Huawei
2015-12-12 7:39 ` Tan, Jianfeng
2015-12-14 1:21 ` Xie, Huawei
2015-12-14 1:35 ` Tan, Jianfeng [this message]
2015-12-14 3:01 ` Yuanhan Liu
2015-12-14 9:32 ` Thomas Monjalon
2015-12-14 11:47 ` Yuanhan Liu
2015-12-14 12:44 ` Thomas Monjalon
2015-12-14 13:09 ` Yuanhan Liu
2015-12-14 13:38 ` Xie, Huawei
2015-12-14 13:45 ` Thomas Monjalon
2015-12-14 13:58 ` Xie, Huawei
2016-02-10 15:36 ` Bruce Richardson
2015-12-10 17:57 [dpdk-dev] [PATCH 0/4] vhost: Fix various coverity issues in vhost library Huawei
2015-12-10 17:57 ` [dpdk-dev] [PATCH] virtio: fix virtio_net_hdr desc pointing to the same buffer Huawei
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