From: "Tan, Jianfeng" <jianfeng.tan@intel.com>
To: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
"david.marchand@6wind.com" <david.marchand@6wind.com>
Subject: Re: [dpdk-dev] [PATCH 4/5] net/virtio-user: add lsc support with vhost-user adapter
Date: Mon, 27 Mar 2017 01:51:13 +0000 [thread overview]
Message-ID: <ED26CBA2FAD1BF48A8719AEF02201E3651171E61@SHSMSX103.ccr.corp.intel.com> (raw)
In-Reply-To: <20170317082912.GI18844@yliu-dev.sh.intel.com>
> -----Original Message-----
> From: Yuanhan Liu [mailto:yuanhan.liu@linux.intel.com]
> Sent: Friday, March 17, 2017 4:29 PM
> To: Tan, Jianfeng
> Cc: dev@dpdk.org; david.marchand@6wind.com
> Subject: Re: [PATCH 4/5] net/virtio-user: add lsc support with vhost-user
> adapter
>
> On Fri, Mar 03, 2017 at 05:56:42PM +0000, Jianfeng Tan wrote:
> > So far, virtio-user with vhost-user as the backend can only support
> > client mode. So when vhost user backend is down, i.e., unix socket
> > connection is broken and cannot be re-connected. We will force the
> > link state to be down.
> >
> > Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
> > static void
> > virtio_user_read_dev_config(struct virtio_hw *hw, size_t offset,
> > void *dst, int length)
> > @@ -63,8 +77,27 @@ virtio_user_read_dev_config(struct virtio_hw *hw,
> size_t offset,
> > return;
> > }
> >
> > - if (offset == offsetof(struct virtio_net_config, status))
> > + if (offset == offsetof(struct virtio_net_config, status)) {
> > + char buf[128];
> > +
> > + if (dev->vhostfd >= 0) {
> > + int flags;
> > + int r;
> > +
> > + flags = fcntl(dev->vhostfd, F_GETFL);
> > + fcntl(dev->vhostfd, F_SETFL, flags | O_NONBLOCK);
> > + r = recv(dev->vhostfd, buf, 128, 0);
>
> I think you need specify flag MSG_PEEK, to not consume the data if
> there any?
Thanks for catching this issue, I'll fix it in next version.
Thanks,
Jianfeng
next prev parent reply other threads:[~2017-03-27 1:51 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-03 17:56 [dpdk-dev] [PATCH 0/5] add LSC and Rxq interrupt for virtio-user Jianfeng Tan
2017-03-03 17:56 ` [dpdk-dev] [PATCH 1/5] eal/linux: add interrupt type for vdev Jianfeng Tan
2017-03-03 17:56 ` [dpdk-dev] [PATCH 2/5] net/virtio-user: add rxq interrupt mode support Jianfeng Tan
2017-03-17 6:47 ` Yuanhan Liu
2017-03-28 1:33 ` Tan, Jianfeng
2017-03-03 17:56 ` [dpdk-dev] [PATCH 3/5] net/virtio-user: support to report net status Jianfeng Tan
2017-03-17 6:54 ` Yuanhan Liu
2017-03-27 7:46 ` Tan, Jianfeng
2017-03-29 6:33 ` Yuanhan Liu
2017-03-29 7:07 ` Tan, Jianfeng
2017-03-29 7:14 ` Yuanhan Liu
2017-03-29 7:48 ` Tan, Jianfeng
2017-03-29 8:00 ` Yuanhan Liu
2017-03-29 8:33 ` Tan, Jianfeng
2017-03-29 8:36 ` Yuanhan Liu
2017-03-30 3:14 ` Tan, Jianfeng
2017-03-03 17:56 ` [dpdk-dev] [PATCH 4/5] net/virtio-user: add lsc support with vhost-user adapter Jianfeng Tan
2017-03-17 8:29 ` Yuanhan Liu
2017-03-27 1:51 ` Tan, Jianfeng [this message]
2017-03-03 17:56 ` [dpdk-dev] [PATCH 5/5] net/virtio-user: add lsc support with vhost-kernel adapter Jianfeng Tan
2017-03-28 8:21 ` [dpdk-dev] [PATCH v2 0/5] add LSC and Rxq interrupt for virtio-user Jianfeng Tan
2017-03-28 8:21 ` [dpdk-dev] [PATCH v2 1/5] eal/linux: add interrupt type for vdev Jianfeng Tan
2017-03-28 8:21 ` [dpdk-dev] [PATCH v2 2/5] net/virtio: add interrupt configure " Jianfeng Tan
2017-03-29 6:27 ` Yuanhan Liu
2017-03-29 7:03 ` Tan, Jianfeng
2017-03-29 7:09 ` Yuanhan Liu
2017-03-29 7:27 ` Tan, Jianfeng
2017-03-29 7:30 ` Yuanhan Liu
2017-03-28 8:21 ` [dpdk-dev] [PATCH v2 3/5] net/virtio-user: add rxq interrupt mode support Jianfeng Tan
2017-03-28 8:21 ` [dpdk-dev] [PATCH v2 4/5] net/virtio-user: support to report net status Jianfeng Tan
2017-03-28 8:21 ` [dpdk-dev] [PATCH v2 5/5] net/virtio-user: add lsc support Jianfeng Tan
2017-03-31 19:44 ` [dpdk-dev] [PATCH v3 0/5] add LSC and Rxq interrupt for virtio-user Jianfeng Tan
2017-03-31 19:44 ` [dpdk-dev] [PATCH v3 1/5] eal/linux: add interrupt type for vdev Jianfeng Tan
2017-03-31 19:44 ` [dpdk-dev] [PATCH v3 2/5] net/virtio-user: move eventfd open/close into init/uninit Jianfeng Tan
2017-03-31 19:44 ` [dpdk-dev] [PATCH v3 3/5] net/virtio-user: add rxq interrupt mode support Jianfeng Tan
2017-03-31 19:44 ` [dpdk-dev] [PATCH v3 4/5] net/virtio-user: support to report net status Jianfeng Tan
2017-03-31 19:44 ` [dpdk-dev] [PATCH v3 5/5] net/virtio-user: add lsc support Jianfeng Tan
2017-04-01 5:13 ` Yuanhan Liu
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