Re: [dpdk-dev] #PERSONAL# Guest Machine is not Pingable from Host Machine

[Arkajit Ghosh <arkajit.ghosh@tcs.com>]

Hi,

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

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

Thanks & Regards
Arkajit Ghosh

____________________________________________

-----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 Machine

Hi,
You need use dpdkvhost port for VM, not dpdk port.
For example, here is the log
9029690c-9544-4ad0-aa41-b018c1a755e2
    Bridge "br1"
        Port "dpdkvhost1"
            Interface "dpdkvhost1"
                type: dpdkvhost
        Port "br1"
            Interface "br1"
                type: internal
        Port "dpdk0"
            Interface "dpdk0"
                type: dpdk
        Port "dpdk1"
            Interface "dpdk1"
                type: dpdk
        Port "dpdkvhost0"
            Interface "dpdkvhost0"
                type: dpdkvhost
  Please refer to this link https://01.org/sites/default/files/page/intel_onp_server_release_1.2_benchmark_test_report_v1.0.pdf
(Page 40,41,...53..)
It will help you to setup OVS correctly.

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

Please find the attachement.


Thanks & Regards
Arkajit Ghosh

____________________________________________

-----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 Machine


Hi Arkajit,
I can't find your attachment.

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

Can any one please suggest how to proceed now. 


Thanks & Regards
Arkajit Ghosh
____________________________________________

-----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, 

I have executed below commands:

./utilities/ovs-vsctl add-br ovsbr0
./utilities/ovs-vsctl set bridge datapath_type=netdev
./utilities/ovs-vsctl add-port ovsbr0 dpdk0 -- set Interface dpdk0 type=dpdk
./utilities/ovs-vsctl add-port ovsbr0 dpdk1 -- set Interface dpdk1 type=dpdk
./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 Running and Multicast but ip address was not given. So i had assign an IP-address to ovsbr0 which previously Eth1 had. 

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

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_seq=1 Destination Host Unreachable
>From 192.168.1.40 icmp_seq=5 Destination Host Unreachable
>From 192.168.1.40 icmp_seq=6 Destination Host Unreachable
>From 192.168.1.40 icmp_seq=7 Destination Host Unreachable
>From 192.168.1.40 icmp_seq=8 Destination Host Unreachable
>From 192.168.1.40 icmp_seq=9 Destination Host Unreachable

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

Thanks & Regards
Arkajit Ghosh
____________________________________________

-----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/
 ./ovs-ofctl show br0
 ./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> wrote:
Hi,
 
 Can anyone please suggest how to proceed.
 
 
 Thanks & Regards
 Arkajit Ghosh
 
 -----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
 
 Hi Team,
 
 Guest machine is not pingable from Host machine after creating a bridge with datapath_type "netdev" in the configuration database and adding  dpdk ports. Can anyone please let me know what is the issue.
 
 Thanks in advance.
 
 Thanks & Regards
 Arkajit Ghosh
 
 
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-- 
Thanks and Best Regards,
Ngo Doan Lap
Mobile: 0977.833.757           

[attachment "DPDK_Output_Result.odt" removed by Arkajit Ghosh/DEL/TCS] 


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


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