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From: Arkajit Ghosh <arkajit.ghosh@tcs.com>
To: Ngo Doan Lap <lapngodoan@gmail.com>
Message-ID: <OFBDF470F8.F05D66E3-ON65257E04.0031A555-65257E04.0031A558@tcs.com>
Date: Tue, 10 Mar 2015 14:32:15 +0530
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Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] #PERSONAL# Guest Machine is not Pingable from Host
	Machine
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Hi,

Ok. Thanks a lot. Give me some time. I will go through the .pdf file page n=
umbers as you mentioned. Once done I will let you know.=20

Once a again thanks a lot for your support and quick response.=20

Thanks & Regards
Arkajit Ghosh

=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F

-----Ngo Doan Lap <lapngodoan@gmail.com> wrote: -----
To: Arkajit Ghosh <arkajit.ghosh@tcs.com>
From: Ngo Doan Lap <lapngodoan@gmail.com>
Date: 03/10/2015 01:36PM
Cc: dev@dpdk.org
Subject: Re: #PERSONAL#[dpdk-dev] Guest Machine is not Pingable from Host M=
achine

Hi,
You need use=A0dpdkvhost=A0port for VM, not dpdk=A0port.
For example, here is the log
9029690c-9544-4ad0-aa41-b018c1a755e2
=A0 =A0 Bridge "br1"
=A0 =A0 =A0 =A0 Port "dpdkvhost1"
=A0 =A0 =A0 =A0 =A0 =A0 Interface "dpdkvhost1"
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 type: dpdkvhost
=A0 =A0 =A0 =A0 Port "br1"
=A0 =A0 =A0 =A0 =A0 =A0 Interface "br1"
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 type: internal
=A0 =A0 =A0 =A0 Port "dpdk0"
=A0 =A0 =A0 =A0 =A0 =A0 Interface "dpdk0"
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 type: dpdk
=A0 =A0 =A0 =A0 Port "dpdk1"
=A0 =A0 =A0 =A0 =A0 =A0 Interface "dpdk1"
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 type: dpdk
=A0 =A0 =A0 =A0 Port "dpdkvhost0"
=A0 =A0 =A0 =A0 =A0 =A0 Interface "dpdkvhost0"
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 type: dpdkvhost
=A0 Please refer to this link=A0https://01.org/sites/default/files/page/int=
el=5Fonp=5Fserver=5Frelease=5F1.2=5Fbenchmark=5Ftest=5Freport=5Fv1.0.pdf
(Page 40,41,...53..)
It will help you to setup=A0OVS correctly.

On Tue, Mar 10, 2015 at 12:17 PM, Arkajit Ghosh <arkajit.ghosh@tcs.com> wro=
te:
=20
Hi,

Please find the attachement.


Thanks & Regards
Arkajit Ghosh

=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F

-----Ngo Doan Lap <lapngodoan@gmail.com> wrote: -----
To: Arkajit Ghosh <arkajit.ghosh@tcs.com>
From: Ngo Doan Lap <lapngodoan@gmail.com>
Date: 03/10/2015 10:25AM
Cc: dev@dpdk.org
Subject: Re: #PERSONAL#[dpdk-dev] Guest Machine is not Pingable from Host M=
achine


Hi=A0Arkajit,
I can't find your attachment.

On Tue, Mar 10, 2015 at 10:23 AM, Arkajit Ghosh <arkajit.ghosh@tcs.com> wro=
te:
=20
Hi,

Can any one please suggest how to proceed now.=20


Thanks & Regards
Arkajit Ghosh
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F

-----Arkajit Ghosh/DEL/TCS wrote: -----
To: Ngo Doan Lap <lapngodoan@gmail.com>
From: Arkajit Ghosh/DEL/TCS
Date: 03/09/2015 09:39AM
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] Guest Machine is not Pingable from Host Machine


Hi,=20

I have executed below commands:

./utilities/ovs-vsctl add-br ovsbr0
./utilities/ovs-vsctl set bridge datapath=5Ftype=3Dnetdev
./utilities/ovs-vsctl add-port ovsbr0 dpdk0 -- set Interface dpdk0 type=3Dd=
pdk
./utilities/ovs-vsctl add-port ovsbr0 dpdk1 -- set Interface dpdk1 type=3Dd=
pdk
./utilities/ovs-vsctl show

Please find the attachement for bridge and dpdk-port creation..

Now, If i do "ifconfig -a" the created bridge ovsbr0 is showing Broadcast R=
unning and Multicast but ip address was not given. So i had assign an IP-ad=
dress to ovsbr0 which previously Eth1 had.=20

So, now I try to ping this guest machine ip address from its host.=A0 Here =
is the output.=20

ping 192.168.1.7
PING 192.168.1.7 (192.168.1.7) 56(84) bytes of data.
>>From 192.168.1.40 icmp=5Fseq=3D1 Destination Host Unreachable
>>From 192.168.1.40 icmp=5Fseq=3D5 Destination Host Unreachable
>>From 192.168.1.40 icmp=5Fseq=3D6 Destination Host Unreachable
>>From 192.168.1.40 icmp=5Fseq=3D7 Destination Host Unreachable
>>From 192.168.1.40 icmp=5Fseq=3D8 Destination Host Unreachable
>>From 192.168.1.40 icmp=5Fseq=3D9 Destination Host Unreachable

I believe it should be pinged from its host machine. Can please let=A0 me k=
now what is the issue and how to proceed.

Thanks & Regards
Arkajit Ghosh
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F

-----Ngo Doan Lap <lapngodoan@gmail.com> wrote: -----
To: Arkajit Ghosh <arkajit.ghosh@tcs.com>
From: Ngo Doan Lap <lapngodoan@gmail.com>
Date: 03/06/2015 08:52PM
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] Guest Machine is not Pingable from Host Machine

Hi,
Can you show the log output of OVS? and the ouput of following command
cd path/to/ovs/utilities/
=A0./ovs-ofctl show br0
=A0./ovs-ofctl dump-flows br0
(Assum that br0 is a bridge name that you had created)

On Fri, Mar 6, 2015 at 10:14 PM, Arkajit Ghosh <arkajit.ghosh@tcs.com> wrot=
e:
Hi,
=20
 Can anyone please suggest how to proceed.
=20
=20
 Thanks & Regards
 Arkajit Ghosh
=20
 -----Arkajit Ghosh/DEL/TCS wrote: -----
 To: dev@dpdk.org
 From: Arkajit Ghosh/DEL/TCS
 Date: 03/04/2015 12:39PM
 Subject: Guest Machine is not Pingable from Host Machine
=20
 Hi Team,
=20
 Guest machine is not pingable from Host machine after creating a bridge wi=
th datapath=5Ftype "netdev" in the configuration database and adding=A0 dpd=
k ports. Can anyone please let me know what is the issue.
=20
 Thanks in advance.
=20
 Thanks & Regards
 Arkajit Ghosh
=20
=20
 =3D=3D=3D=3D=3D-----=3D=3D=3D=3D=3D-----=3D=3D=3D=3D=3D
 Notice: The information contained in this e-mail
 message and/or attachments to it may contain
 confidential or privileged information. If you are
 not the intended recipient, any dissemination, use,
 review, distribution, printing or copying of the
 information contained in this e-mail message
 and/or attachments to it are strictly prohibited. If
 you have received this communication in error,
 please notify us by reply e-mail or telephone and
 immediately and permanently delete the message
 and any attachments. Thank you
=20
=20
=20


--=20
Thanks and Best Regards,
Ngo Doan Lap
Mobile: 0977.833.757          =20

[attachment "DPDK=5FOutput=5FResult.odt" removed by Arkajit Ghosh/DEL/TCS] =



--=20
Thanks and Best Regards,
Ngo Doan Lap
Mobile: 0977.833.757 =20


--=20
Thanks and Best Regards,
Ngo Doan Lap
Mobile: 0977.833.757 =20
>From david.marchand@6wind.com  Tue Mar 10 10:08:25 2015
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Subject: Re: [dpdk-dev] [PATCH 1/2] eal/linux: move plugin load to very
 start of eal init
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Hello Neil,

On Mon, Mar 9, 2015 at 4:21 PM, Neil Horman <nhorman@tuxdriver.com> wrote:

> On Mon, Mar 09, 2015 at 03:56:38PM +0100, David Marchand wrote:
> > Loading shared libraries should be done at the very start of eal init so
> that
> > the code statically built in dpdk and the code loaded from shared
> objects is
> > handled (almost) the same way wrt to call to rte_eal_init().
> > The only thing that must be done before is filling the solib_list which
> is done
> > by eal_parse_args().
> >
>
>
> I don't see anything explicitly wrong with this, but at the same time it
> doesn't
> seem to fix anything.  Is there a particular bug that you're fixing in
> relation
> to your cover letter here?  Or is there some expectation that PMD's loaded
> in
> this fashion expect the dpdk to be completely uninitalized?  That would
> seem
> like a strange operational requirement to me.
>

Well, at first, I wanted to fix the virtio pmd init issue (iopl() not
called at the right place wrt to other pthreads created in rte_eal_init()).
With next patch, this issue is fixed for statically builtin virtio pmd, but
for virtio pmd as a shared object, the dlopen comes too late.
So, yes, I moved the dlopen() for this reason.

>>From a more general point of view, since we support both static and dso
pmds, I would say that this is more logical to have dlopen comes very
early, since static code is "loaded" even earlier : if the current pmds
needed more than just register to the driver list, they would already have
triggered segfaults and/or bugs.


I know this change comes really late for 2.0.
I am open to other ideas but I don't want to see more #ifdef <some feature>
in eal.c (especially for a pmd), this is a non sense.

I would say that at least the patch 2 is needed for 2.0 : it fixes the
static case, but without patch 1 virtio pmd triggers a segfault on
interrupt receipt when built as a dso.


-- 
David Marchand