From: Bruce Richardson <bruce.richardson@intel.com>
To: "Burakov, Anatoly" <anatoly.burakov@intel.com>
Cc: "Zhang, Xiaohua" <Xiaohua.Zhang@windriver.com>,
"Yigit, Ferruh" <ferruh.yigit@intel.com>,
"dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH] usertools/dpdk-devbind.py: add support for wind river avp device
Date: Wed, 14 Feb 2018 10:32:26 +0000 [thread overview]
Message-ID: <20180214103225.GA4512@bricha3-MOBL3.ger.corp.intel.com> (raw)
In-Reply-To: <d6eee1ba-ce20-c2a3-f6ce-af8ab9dd3015@intel.com>
On Wed, Feb 14, 2018 at 09:57:25AM +0000, Burakov, Anatoly wrote:
> On 14-Feb-18 12:48 AM, Zhang, Xiaohua wrote:
> > Hi Yigit and Anantoly,
> > I checked the nics-17.11.pdf, the following is description:
> > "The Accelerated Virtual Port (AVP) device is a shared memory based device only available
> > on virtualization platforms from Wind River Systems. The Wind River Systems virtualization
> > platform currently uses QEMU/KVM as its hypervisor and as such provides support for all of
> > the QEMU supported virtual and/or emulated devices (e.g., virtio, e1000, etc.). The platform
> > offers the virtio device type as the default device when launching a virtual machine or creating
> > a virtual machine port. The AVP device is a specialized device available to customers that
> > require increased throughput and decreased latency to meet the demands of their performance
> > focused applications."
> >
> > I am afraid just "memory_device" will have some misunderstanding.
> > Could we put it as "avp device (shared memory based)"?
> >
> >
>
> Hi,
>
> Well, from AVP PMD documentation, it seems that AVP is classified as a NIC.
> Can't we just add it to the list of NICs, even if it's not Ethernet class
> 0x20xx? Pattern-matching in devbind should work either way. For example, you
> can see there's "cavium_pkx" already classified as a NIC, even though its
> class is 08xx, not 02xx. So why not this one?
>
Definite +1.
It's used for packet IO into a vm, like virtio, and it's driver is in
drivers/net.
"If it looks like a NIC, and quacks like a NIC, then it probably is a
NIC". [Alternatively if it looks and quacks like a duck, I'm not sure
what it's doing in DPDK!]
/Bruce
next prev parent reply other threads:[~2018-02-14 10:32 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-11 9:52 Xiaohua Zhang
2018-02-12 10:13 ` Burakov, Anatoly
2018-02-13 1:43 ` Zhang, Xiaohua
2018-02-13 10:06 ` Burakov, Anatoly
2018-02-13 11:06 ` Ferruh Yigit
2018-02-14 0:48 ` Zhang, Xiaohua
2018-02-14 9:57 ` Burakov, Anatoly
2018-02-14 10:32 ` Bruce Richardson [this message]
2018-02-14 23:17 ` Zhang, Xiaohua
2018-02-15 9:28 ` Burakov, Anatoly
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