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From: Stephen Hemminger <stephen@networkplumber.org>
To: "Czaus, Tomasz" <tomasz.czaus@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] One pkt in mbuf chain - virtio pmd driver
Date: Thu, 7 Aug 2014 09:36:51 -0700	[thread overview]
Message-ID: <20140807093651.09d2f483@haswell.linuxnetplumber.net> (raw)
In-Reply-To: <4060631EACBB65409E09BBBDAF62A4C5347B4F29@IRSMSX103.ger.corp.intel.com>

On Thu, 7 Aug 2014 06:19:58 +0000
"Czaus, Tomasz" <tomasz.czaus@intel.com> wrote:

> Hello,
> 
> Does virtio pmd driver support scenario when a frame fits in mbuf chain, this means all headers (eth/ipv4/tcp) are located in first mbuf and user data is located in next mbuf. I have asked the same question on dpdk-ovs mailing group, here is a thread and more details:
> 
> https://lists.01.org/pipermail/dpdk-ovs/2014-August/001557.html
> 
> Best Regards,
> Tomasz Czaus

Existing DPDK 1.7 virtio driver does not.
I wrote a virtio DPDK driver (before the 1.6 one) that does handle it, so it is possible.

I have some patches to handle multi-part mbuf and messages, based on backport
from that driver but they are untested.

      parent reply	other threads:[~2014-08-07 16:34 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-07  6:19 Czaus, Tomasz
2014-08-07  7:06 ` Xie, Huawei
2014-08-07  7:18   ` Ouyang, Changchun
2014-08-08  5:51   ` Czaus, Tomasz
2014-08-07 16:36 ` Stephen Hemminger [this message]

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