From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: souvikdey33 <sodey@sonusnet.com>,
stephen@networkplumber.org, huawei.xie@intel.com,
yuanhan.liu@linux.intel.com
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v2] add mtu set in virtio
Date: Tue, 30 Aug 2016 09:57:39 +0200 [thread overview]
Message-ID: <d6819eae-3fa5-4a77-bd27-084019852fdc@redhat.com> (raw)
In-Reply-To: <20160829230240.20164-1-sodey@sonusnet.com>
Hi Souvik,
On 08/30/2016 01:02 AM, souvikdey33 wrote:
> Signed-off-by: Souvik Dey <sodey@sonusnet.com>
>
> Fixes: 1fb8e8896ca8 ("Signed-off-by: Souvik Dey <sodey@sonusnet.com>")
> Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
>
> Virtio interfaces should also support setting of mtu, as in case of cloud
> it is expected to have the consistent mtu across the infrastructure that
> the dhcp server sends and not hardcoded to 1500(default).
> ---
> drivers/net/virtio/virtio_ethdev.c | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
FYI, there are some on-going changes in the VIRTIO specification
so that the VHOST interface exposes its MTU to its VIRTIO peer.
It may also be used as an alternative of what you patch achieves.
I am working on its implementation in Qemu/DPDK, our goal being to
reduce performance drops for small packets with Rx mergeable buffers
feature enabled.
Regards,
Maxime
next prev parent reply other threads:[~2016-08-30 7:57 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-29 23:02 souvikdey33
2016-08-30 7:57 ` Maxime Coquelin [this message]
2016-09-01 22:20 ` Dey, Souvik
2016-09-02 7:05 ` Maxime Coquelin
2016-09-07 2:11 ` Dey, Souvik
2016-09-07 8:28 ` Maxime Coquelin
2016-09-07 3:25 ` Yuanhan Liu
2016-09-07 9:16 ` Maxime Coquelin
2016-09-08 7:30 ` Yuanhan Liu
2016-09-08 7:50 ` Maxime Coquelin
2016-09-08 7:57 ` Yuanhan Liu
2016-09-09 3:44 ` Dey, Souvik
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