From: "Tan, Jianfeng" <jianfeng.tan@intel.com>
To: Ivan Dyukov <i.dyukov@samsung.com>,
"yliu@fridaylinux.org" <yliu@fridaylinux.org>,
"maxime.coquelin@redhat.com" <maxime.coquelin@redhat.com>,
"dev@dpdk.org" <dev@dpdk.org>
Cc: "i.maximets@samsung.com" <i.maximets@samsung.com>,
"heetae82.ahn@samsung.com" <heetae82.ahn@samsung.com>,
"stable@dpdk.org" <stable@dpdk.org>
Subject: Re: [dpdk-stable] [dpdk-dev] [PATCH] vhost: fix checking of device features
Date: Thu, 29 Jun 2017 06:13:28 +0000 [thread overview]
Message-ID: <ED26CBA2FAD1BF48A8719AEF02201E365121C833@SHSMSX103.ccr.corp.intel.com> (raw)
In-Reply-To: <1498653631-15307-1-git-send-email-i.dyukov@samsung.com>
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Ivan Dyukov
> Sent: Wednesday, June 28, 2017 8:41 PM
> To: yliu@fridaylinux.org; maxime.coquelin@redhat.com; dev@dpdk.org
> Cc: i.maximets@samsung.com; heetae82.ahn@samsung.com; Ivan Dyukov;
> stable@dpdk.org
> Subject: [dpdk-dev] [PATCH] vhost: fix checking of device features
>
> To compare enabled features in current device we must use bit
> mask instead of bit position.
>
> CC: stable@dpdk.org
> Fixes: c843af3aa13e ("vhost: access header only")
>
> Signed-off-by: Ivan Dyukov <i.dyukov@samsung.com>
> ---
> lib/librte_vhost/virtio_net.c | 8 +++++---
> 1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c
> index ebfda1c..4fae4c1 100644
> --- a/lib/librte_vhost/virtio_net.c
> +++ b/lib/librte_vhost/virtio_net.c
> @@ -601,9 +601,11 @@ static inline bool
> virtio_net_with_host_offload(struct virtio_net *dev)
> {
> if (dev->features &
> - (VIRTIO_NET_F_CSUM | VIRTIO_NET_F_HOST_ECN |
> - VIRTIO_NET_F_HOST_TSO4 |
> VIRTIO_NET_F_HOST_TSO6 |
> - VIRTIO_NET_F_HOST_UFO))
> + ((1ULL << VIRTIO_NET_F_CSUM) |
> + (1ULL << VIRTIO_NET_F_HOST_ECN) |
> + (1ULL << VIRTIO_NET_F_HOST_TSO4) |
> + (1ULL << VIRTIO_NET_F_HOST_TSO6) |
> + (1ULL << VIRTIO_NET_F_HOST_UFO)))
Another problem in this piece of code, we don't support VIRTIO_NET_F_HOST_ECN and VIRTIO_NET_F_HOST_UFO in vhost-user. We might consider to remove those two lines?
Thanks,
Jianfeng
> return true;
>
> return false;
> --
> 2.7.4
next prev parent reply other threads:[~2017-06-29 6:13 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20170628124049eucas1p1688178d88249ae416d653abfc19d0478@eucas1p1.samsung.com>
2017-06-28 12:40 ` [dpdk-stable] " Ivan Dyukov
2017-06-28 12:54 ` Maxime Coquelin
2017-06-29 6:07 ` Ivan Dyukov
2017-06-29 7:21 ` Maxime Coquelin
2017-06-29 7:37 ` Maxime Coquelin
2017-06-29 6:13 ` Tan, Jianfeng [this message]
2017-06-29 7:27 ` [dpdk-stable] [dpdk-dev] " Maxime Coquelin
2017-06-29 8:05 ` Tan, Jianfeng
2017-07-01 23:36 ` [dpdk-stable] " Yuanhan Liu
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