From: chintu hetam <rometoroam@gmail.com>
To: "Xie, Huawei" <huawei.xie@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] DPDK 2.2 build failing with vhost-kni
Date: Mon, 11 Apr 2016 10:09:02 -0400 [thread overview]
Message-ID: <CAOH8HtrEm0cWsQSZds3f3h_Dw-t+MOSUUTCBUcgPDtjUeHUyig@mail.gmail.com> (raw)
In-Reply-To: <C37D651A908B024F974696C65296B57B4C6DEE0E@SHSMSX101.ccr.corp.intel.com>
Thanks Xie.
I am trying to test FreeBSD-9.3-virtio as guest. Somewhere in the forum i
found virtio-kni combination reaching around 2.7 Gbps performance, which is
enough for my test, though i dint find equivalent driver performance
characterization for qemu-vhost user space combination.
Also, as per nics-2.2 user guide, "Linux kernel with KVM module; vhost
module loaded and ioeventfd supported. Qemu standard backend without vhost
support isn’t tested, and probably isn’t supported",which is bit different
from vhost user space support,but still..
Just to be sure vhost user space = qemu virtio backend- tap-linux-bridge
configuration, as per nics guide, right?
Thanking in advance, again.
On Mon, Apr 11, 2016 at 4:25 AM, Xie, Huawei <huawei.xie@intel.com> wrote:
> On 4/10/2016 7:26 AM, chintu hetam wrote:
> > I am compiling DPDK 2.2 on Fedora 23 and i am seeing following build
> error
> >
> /home/vcr/devel/dpdk/dpdk-2.2.0/build/build/lib/librte_eal/linuxapp/kni/kni_vhost.c:
> > In function ‘kni_sock_poll’:
> >
> /home/vcr/devel/dpdk/dpdk-2.2.0/build/build/lib/librte_eal/linuxapp/kni/kni_vhost.c:254:25:
> > error: ‘SOCK_ASYNC_NOSPACE’ undeclared (first use in this function)
> > (!test_and_set_bit(SOCK_ASYNC_NOSPACE, &q->sock->flags) &&
> > ^
>
> Hi, besides the issue, now user space vhost is the preferred way to
> switch packets with the virtual machine, and we have plans to remove kni
> vhost support. Do you have any reason to use kni vhost?
>
next prev parent reply other threads:[~2016-04-11 14:09 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-09 23:26 chintu hetam
2016-04-11 8:25 ` Xie, Huawei
2016-04-11 14:09 ` chintu hetam [this message]
2016-04-11 18:57 ` chintu hetam
2016-04-11 19:02 ` chintu hetam
2016-04-11 16:54 ` [dpdk-dev] [PATCH] kni: fix vhost-kni compile errors Ferruh Yigit
2016-04-11 17:04 ` Thomas Monjalon
2016-04-11 17:57 ` Ferruh Yigit
2016-04-11 18:30 ` [dpdk-dev] [PATCH v2] " Ferruh Yigit
2016-04-11 20:43 ` Thomas Monjalon
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