DPDK patches and discussions
 help / color / mirror / Atom feed
From: "Mcnamara, John" <john.mcnamara@intel.com>
To: "Iremonger, Bernard" <bernard.iremonger@intel.com>,
	"dev@dpdk.org" <dev@dpdk.org>
Cc: "Liu, Yong" <yong.liu@intel.com>, "Xu, Qian Q" <qian.q.xu@intel.com>
Subject: Re: [dpdk-dev] [PATCH v3 1/2] doc: live migration of VM with Virtio and VF
Date: Fri, 15 Jul 2016 10:50:43 +0000	[thread overview]
Message-ID: <B27915DBBA3421428155699D51E4CFE20259E704@IRSMSX103.ger.corp.intel.com> (raw)
In-Reply-To: <1467888154-5898-2-git-send-email-bernard.iremonger@intel.com>

> -----Original Message-----
> From: Iremonger, Bernard
> Sent: Thursday, July 7, 2016 11:43 AM
> To: Mcnamara, John <john.mcnamara@intel.com>; dev@dpdk.org
> Cc: Liu, Yong <yong.liu@intel.com>; Xu, Qian Q <qian.q.xu@intel.com>;
> Iremonger, Bernard <bernard.iremonger@intel.com>
> Subject: [PATCH v3 1/2] doc: live migration of VM with Virtio and VF
> 
> This patch describes the procedure to be be followed to perform Live
> Migration of a VM with Virtio and VF PMD's using the bonding PMD.
> 
> It includes sample host and VM scripts used in the procedure, and a sample
> switch configuration.

Hi Bernard,

Thanks for the doc. It is a complicated process so it is good to have this
detailed how-to. Some comments below.


> +
> +Live Migration of VM with SR-IOV VF:
> +====================================


I wouldn't include a colon in the heading. Something like this may be better:

     Live Migration of a VM with SR-IOV VF
     =====================================


> +
> +Live Migration overview for VM with Virtio and VF PMD's:
> +--------------------------------------------------------


Also, I wouldn't include the "Live Migration ... for VM with Virtio ..."
in each heading. The context should be clear from the main sections of
the doc. I this case I would just call the heading "Overview"

> +
> +It is not possible to migrate a Virtual Machine which has an SR-IOV
> Virtual Function.

Add (VF) in brackets at the first mention of Virtual Function here. Also
for PF below.

> +To get around this problem the bonding PMD is used.

I would add to the end of this paragraph:

    The following sections show an example of how to do this.


Also I think the "Test Setup" header from below should be moved up to this point.

> +
> +A bonded device is created in the VM.
> +The virtio and VF PMD's are added as slaves to the bonded device.
> +The VF is set as the primary slave of the bonded device.
> +
> +A bridge must be set up on the Host connecting the tap device, which is
> +the backend of the Virtio device and the Physical Function device.
> +
> +To test the Live Migration two servers with identical operating systems
> installed are used.
> +KVM and Qemu 2.3 is also required on the servers.
> +
> +The servers have Niantic and or Fortville NIC's installed.
> +The NIC's on both servers are connected to a switch which is also
> +connected to the traffic generator.

I would prefix this paragraph with: "In this example, the servers have
Niantic and .."


> +The switch is configured to broadcast traffic on all the NIC ports.
> +
> +Live Migration with SR-IOV VF test setup:
> +-----------------------------------------

Just "Test Setup" would be better. And move up, I think.


> +
> +Live Migration steps for VM with Virtio and VF PMD's:
> +-----------------------------------------------------

Again "Live Migration steps" would be fine.


Also I would change this paragraph to link forward to the scripts like:


    The sample scripts mentioned in the steps below can be found in the
    :ref:`lm_bond_virtio_sriov_host_scripts`
    and :ref:`lm_bond_virtio_sriov_host_scripts` sections.


And then put the targets in the relevant sections of the docs.

    .. _lm_bond_virtio_sriov_host_scripts:

    .. _lm_bond_virtio_sriov_vm_scripts:


> +
> +The host is running the Kernel Physical Function driver (ixgbe or i40e).
> +
> +The ip address of host_server_1 is 10.237.212.46
> +
> +The ip address of host_server_2 is 10.237.212.131
> +
> +The sample scripts mentioned in the steps below can be found in the
> +host_scripts and vm_scripts sections.
> +
> +On host_server_1: Terminal 1
> +^^^^^^^^^^^^^^^^^^^^^^^^^^^^

The documentation guidelines say to use ~~~~~~ as the third level heading
underline. It doesn't really matter since the RST parsers figure it out.
Up to you if you want to change it.

http://dpdk.org/doc/guides/contributing/documentation.html#section-headers

> +The following command only works with kernel PF for Niantic
> +
> +.. code-block:: console
> +
> +    testpmd> mac_addr add port 1 vf 0 AA:BB:CC:DD:EE:FF
> +
> +create bonded device(mode) (socket)

Should be a space after device. Also these lines describing the state
or state change should be written have capital letters and full stops
so they read like sentences. Also, if describing a state change you
could add "now" so the reader is aware of the change. For example:

  - primary is port 1, 2 active slaves
  + Primary is now port1. There are 2 active slaves.

> +
> +Setup Virtual Machine on host_server_1
> +
> +.. code-block:: sh
> +
> +  #!/bin/sh
> +


I thought that the code block had to be indented 3 spaces but the RST
parsers didn't complain. Might be worth changing them anyway to a
consistent 3 or 4 space indent.

John

  reply	other threads:[~2016-07-15 10:50 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-01 10:48 [dpdk-dev] [PATCH " Bernard Iremonger
2016-07-01 10:48 ` [dpdk-dev] [PATCH 2/2] doc: add live migration overview image Bernard Iremonger
2016-07-06 16:01 ` [dpdk-dev] [PATCH v2 0/2] doc: live migration procedure Bernard Iremonger
2016-07-06 16:01   ` [dpdk-dev] [PATCH v2 1/2] doc: live migration of VM with Virtio and VF Bernard Iremonger
2016-07-06 16:28     ` Thomas Monjalon
2016-07-07  8:44       ` Iremonger, Bernard
2016-07-06 16:01   ` [dpdk-dev] [PATCH v2 2/2] doc: add live migration overview image Bernard Iremonger
2016-07-06 16:25   ` [dpdk-dev] [PATCH v2 0/2] doc: live migration procedure Thomas Monjalon
2016-07-07 10:42   ` [dpdk-dev] [PATCH v3 " Bernard Iremonger
2016-07-07 10:42     ` [dpdk-dev] [PATCH v3 1/2] doc: live migration of VM with Virtio and VF Bernard Iremonger
2016-07-15 10:50       ` Mcnamara, John [this message]
2016-07-15 11:31         ` Iremonger, Bernard
2016-07-07 10:42     ` [dpdk-dev] [PATCH v3 2/2] doc: add live migration overview image Bernard Iremonger
2016-07-13 15:35     ` [dpdk-dev] [PATCH v2 0/2] doc: live migration procedure with vhost_user Bernard Iremonger
2016-07-13 15:36       ` [dpdk-dev] [PATCH v2 1/2] doc: live migration of VM with vhost_user on host Bernard Iremonger
2016-07-17 18:12         ` Mcnamara, John
2016-07-18  7:53           ` Iremonger, Bernard
2016-07-13 15:36       ` [dpdk-dev] [PATCH v2 2/2] doc: add vhost_user live migration image Bernard Iremonger
2016-07-18 14:30       ` [dpdk-dev] [PATCH v3 0/2] doc: live migration procedure with vhost_user Bernard Iremonger
2016-07-18 14:30         ` [dpdk-dev] [PATCH v3 1/2] doc: live migration of VM with vhost_user on host Bernard Iremonger
2016-07-19 16:15           ` Mcnamara, John
2016-07-18 14:30         ` [dpdk-dev] [PATCH v3 2/2] doc: add vhost_user live migration image Bernard Iremonger
2016-07-19 16:15           ` Mcnamara, John
2016-07-22 16:59         ` [dpdk-dev] [PATCH v3 0/2] doc: live migration procedure with vhost_user Thomas Monjalon
2016-07-18 10:17     ` [dpdk-dev] [PATCH v4 0/2] doc: live migration procedure Bernard Iremonger
2016-07-18 10:17       ` [dpdk-dev] [PATCH v4 1/2] doc: live migration of VM with Virtio and VF Bernard Iremonger
2016-07-19 14:08         ` Mcnamara, John
2016-07-19 14:27           ` Iremonger, Bernard
2016-07-18 10:17       ` [dpdk-dev] [PATCH v4 2/2] doc: add live migration virtio sriov image Bernard Iremonger
2016-07-19 14:09         ` Mcnamara, John
2016-07-19 14:28           ` Iremonger, Bernard
2016-07-19 15:09       ` [dpdk-dev] [PATCH v5 0/2] doc: live migration procedure Bernard Iremonger
2016-07-19 15:09         ` [dpdk-dev] [PATCH v5 1/2] doc: live migration of VM with Virtio and VF Bernard Iremonger
2016-07-19 16:12           ` Mcnamara, John
2016-07-19 15:09         ` [dpdk-dev] [PATCH v5 2/2] doc: add live migration virtio sriov image Bernard Iremonger
2016-07-19 16:13           ` Mcnamara, John
2016-07-22 16:56         ` [dpdk-dev] [PATCH v5 0/2] doc: live migration procedure Thomas Monjalon

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=B27915DBBA3421428155699D51E4CFE20259E704@IRSMSX103.ger.corp.intel.com \
    --to=john.mcnamara@intel.com \
    --cc=bernard.iremonger@intel.com \
    --cc=dev@dpdk.org \
    --cc=qian.q.xu@intel.com \
    --cc=yong.liu@intel.com \
    /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).