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From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
To: "Charles (Chas) Williams" <ciwillia@brocade.com>
Cc: dev@dpdk.org, mtetsuyah@gmail.com
Subject: Re: [dpdk-dev] [PATCH v3 1/2] net/vhost: create datagram sockets immediately
Date: Tue, 3 Jan 2017 16:22:15 +0800	[thread overview]
Message-ID: <20170103082215.GC21228@yliu-dev.sh.intel.com> (raw)
In-Reply-To: <1483297317-20315-1-git-send-email-ciwillia@brocade.com>

On Sun, Jan 01, 2017 at 02:01:56PM -0500, Charles (Chas) Williams wrote:
> If you create a vhost server device, it doesn't create the actual datagram
> socket until you call .dev_start().  If you call .dev_stop() is also
> deletes those sockets.  For QEMU clients, this is a problem since QEMU
> doesn't know how to re-attach to datagram sockets that have gone away.
> 
> To work around this, register and unregister the datagram sockets during

I will not call it's a "workaround", instead, it's a "fix" to me.

> device creation and removal.
> 
> Fixes: ee584e9710b9 ("vhost: add driver on top of the library")
> 
> Signed-off-by: Chas Williams <ciwillia@brocade.com>
> ---
>  drivers/net/vhost/rte_eth_vhost.c | 43 ++++++++++++++++-----------------------
>  1 file changed, 17 insertions(+), 26 deletions(-)
> 
> diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
> index 60b0f51..6b11e40 100644
> --- a/drivers/net/vhost/rte_eth_vhost.c
> +++ b/drivers/net/vhost/rte_eth_vhost.c
> @@ -114,8 +114,6 @@ struct pmd_internal {
>  	char *iface_name;
>  	uint16_t max_queues;
>  	uint64_t flags;

I think the "flags" could also be dropped in this patch: no user any
more.

	--yliu

  parent reply	other threads:[~2017-01-03  8:20 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-01 19:01 Charles (Chas) Williams
2017-01-01 19:01 ` [dpdk-dev] [PATCH v3 2/2] net/vhost: emulate device start/stop behavior Charles (Chas) Williams
2017-01-03  8:29   ` Yuanhan Liu
2017-01-03  8:22 ` Yuanhan Liu [this message]
2017-01-03 13:52   ` [dpdk-dev] [PATCH v3 1/2] net/vhost: create datagram sockets immediately Charles (Chas) Williams

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