DPDK usage discussions
 help / color / mirror / Atom feed
From: Victor Detoni <victordetoni@gmail.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: users@dpdk.org
Subject: Re: [dpdk-users] Set mtu value
Date: Mon, 29 Aug 2016 22:55:33 -0300	[thread overview]
Message-ID: <CANpwN=sie4OM1QL-PUwAsyizTFjpSQ1c7Qw3fCMJaGwpE2FUHw@mail.gmail.com> (raw)
In-Reply-To: <CANpwN=ubUJRoNi3YYQXahYX9mSp9XDt8SeTJ_z75niVKXswtXw@mail.gmail.com>

Even using `ifconfig eth0 mtu 1000` it doesn't work. My dpdk api shows 1500
mtu value.

And when I try to use l3fwd api and settings --enable-jumbo --max-pkt-len
9000 for example, it doesn't work. it appears: Cause
rte_eth_tx_queue_setup: err-22, port=0

Any tips? I'm using Ubuntu 16.04 and VMXNET3.

thanks

On Mon, Aug 22, 2016 at 10:12 AM, Victor Detoni <victordetoni@gmail.com>
wrote:

> Stephen, thank you for your answer.
>
> When you say "stop the device, configure new settings, and start", you
> mean use these functions rte_eth_dev_stop and rte_eth_dev_start?
>
> On Mon, Aug 22, 2016 at 2:27 AM, Stephen Hemminger <
> stephen@networkplumber.org> wrote:
>
>> only some device drivers support changing MTU via the change API.
>> For the rest the application has to stop the device, configure new
>> settings, and start.
>>
>
>

      reply	other threads:[~2016-08-30  1:55 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-21 21:27 Victor Detoni
2016-08-22  5:27 ` Stephen Hemminger
2016-08-22 13:12   ` Victor Detoni
2016-08-30  1:55     ` Victor Detoni [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CANpwN=sie4OM1QL-PUwAsyizTFjpSQ1c7Qw3fCMJaGwpE2FUHw@mail.gmail.com' \
    --to=victordetoni@gmail.com \
    --cc=stephen@networkplumber.org \
    --cc=users@dpdk.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).