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From: Nirmal Sarkar <nirmal.kisan@gmail.com>
To: "Morten Brørup" <mb@smartsharesystems.com>
Cc: John McNamara <john.mcnamara@intel.com>,
	Marko Kovacevic <marko.kovacevic@intel.com>,
	 Thomas Monjalon <thomas@monjalon.net>,
	Ferruh Yigit <ferruh.yigit@intel.com>,
	 Andrew Rybchenko <arybchenko@solarflare.com>,
	"Roberts, Lee A." <lee.roberts@hpe.com>,
	dev@dpdk.org
Subject: Re: [dpdk-dev] Jumbo Frame in pktgen & dpdk-pktgen
Date: Wed, 20 Nov 2019 17:39:47 +0530
Message-ID: <CACeX4O81UCm5qxdsmHoTea1exR3DYp-diB3sdObvbKHaUoDUGg@mail.gmail.com> (raw)
In-Reply-To: <98CBD80474FA8B44BF855DF32C47DC35C60C14@smartserver.smartshare.dk>

[-- Attachment #1: Type: text/plain, Size: 3416 bytes --]

Hello,

Thanks for the help.
As I'm using DPDK-18.11.1, I did not find the definition of
"RTE_ETHER_MAX_LEN" in lib/librte_net/rte_ether.h file.
So I set "ETHER_MAX_LEN" value to 9600.
Apart from that I took rest of the changes and with these I'm able to send
jumbo frame.
Took tcpdump on the receiving end.

Suddenly I got stuck at ARP. I could not send packets anymore.

I've attached success & failure scenario.

Regards,
N. Sarkar

On Wed, Nov 20, 2019 at 2:14 AM Morten Brørup <mb@smartsharesystems.com>
wrote:

> John, Marko,
>
> It seems we are missing documentation about enabling Jumbo frames in an
> application, and possibly an example of using the rte_eth_dev_info->max_mtu.
>
>
> Med venlig hilsen / kind regards
> - Morten Brørup
>
> > -----Original Message-----
> > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Roberts, Lee A.
> > Sent: Tuesday, November 19, 2019 6:42 PM
> > To: Nirmal Sarkar; dev@dpdk.org
> > Subject: Re: [dpdk-dev] Jumbo Frame in pktgen & dpdk-pktgen
> >
> > Nirmal,
> >
> > Here are the changes that I've been using to allow jumbo frames with
> dpdk-
> > 19.08 and
> > pktgen-19.10.0:
> >
> > diff -r default/dpdk-19.08/lib/librte_mbuf/rte_mbuf.h jumbo/dpdk-
> > 19.08/lib/librte_mbuf/rte_mbuf.h
> > 462c462
> > < #define     RTE_MBUF_DEFAULT_DATAROOM       2048
> > ---
> > > #define     RTE_MBUF_DEFAULT_DATAROOM       9600
> > diff -r default/dpdk-19.08/lib/librte_net/rte_ether.h jumbo/dpdk-
> > 19.08/lib/librte_net/rte_ether.h
> > 33c33
> > < #define RTE_ETHER_MAX_LEN   1518  /**< Maximum frame len, including
> CRC.
> > */
> > ---
> > > #define RTE_ETHER_MAX_LEN   9600  /**< Maximum frame len, including
> CRC.
> > */
> > diff -r default/pktgen-19.10.0/app/pktgen.c jumbo/pktgen-
> > 19.10.0/app/pktgen.c
> > 749c749
> > <     else if ( (plen >= 1024) && (plen <= PG_ETHER_MAX_LEN))
> > ---
> > >     else if ( (plen >= 1024) && (plen <= 1518))
> > 753c753
> > <     else if (plen > PG_ETHER_MAX_LEN)
> > ---
> > >     else if (plen > 1518)
> > diff -r default/pktgen-19.10.0/lib/common/pg_inet.h jumbo/pktgen-
> > 19.10.0/lib/common/pg_inet.h
> > 379,380c379,380
> > < #define ETH_MTU                     1500    /* Max MTU for Ethernet */
> > < #define ETH_MAX_PKT                 1518    /* Max Ethernet frame size
> */
> > ---
> > > #define ETH_MTU                     9600    /* Max MTU for Ethernet */
> > > #define ETH_MAX_PKT                 9600    /* Max Ethernet frame size
> */
> >
> >                                    - Lee Roberts
> >
> >
> > -----Original Message-----
> > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Nirmal Sarkar
> > Sent: Monday, November 18, 2019 10:26 AM
> > To: dev@dpdk.org
> > Subject: [dpdk-dev] Jumbo Frame in pktgen & dpdk-pktgen
> >
> > Hello,
> >
> > I'm trying to explore pktgen and dpdk-pktgen with Jumbo frame.
> >
> > I'm using ubuntu-18.04 system where pktgen is a kernel module and I don't
> > have any provision to set it for Jumbo frame.
> > Can you please suggest how to configure Jumbo frame in pktgen ?
> >
> > In dpdk source code, I've modified RTE_MBUF_DEFAULT_DATAROOM [
> > *lib/librte_mbuf/rte_mbuf.h*] value with 9K and built.
> > During testing, I could not send packet size more than 1500 byte.
> > What is the suggestion to overcome this problem ?
> >
> > Regards,
> > N. Sarkar
>

[-- Attachment #2: success.txt --]
[-- Type: text/plain, Size: 1703 bytes --]

** Version: DPDK 18.11.1, Command Line Interface without timers
Pktgen:/>
/ Ports 0-0 of 1   <Main Page>  Copyright (c) <2010-2019>, Intel Corporation
  Flags:Port        : P------Range       :0
Link State          :         <UP-10000-FD>      ---Total Rate---
Pkts/s Max/Rx       :                   2/1                   2/1
       Max/Tx       :           20838/19244           20838/19244
MBits/s Rx/Tx       :                0/1384                0/1384
Broadcast           :                     0
Multicast           :                    10
Sizes 64            :                    12
      65-127        :                     0
      128-255       :                     0
      256-511       :                     0
      512-1023      :                     0
      1024-1518     :                     0
Runts/Jumbos        :                   0/0
ARP/ICMP Pkts       :                  10/0
Errors Rx/Tx        :                   0/0
Total Rx Pkts       :                    11
      Tx Pkts       :                179640
      Rx MBs        :                     0
      Tx MBs        :                 12922
                    :
Pattern Type        :               abcd...
Tx Count/% Rate     :         Forever /100%
Pkt Size/Tx Burst   :           8972 /   64
TTL/Port Src/Dest   :         4/ 1000/ 1000
Pkt Type:VLAN ID    :       IPv4 / UDP:0001
802.1p CoS/DSCP/IPP :             0/  0/  0
VxLAN Flg/Grp/vid   :      0000/    0/    0
IP  Destination     :         192.168.168.4
    Source          :      192.168.168.3/24
MAC Destination     :     00:50:56:9b:ba:ae
    Source          :     00:50:56:9b:ef:53
PCI Vendor/Addr     :     15ad:07b0/0b:00.0

[-- Attachment #3: failure.txt --]
[-- Type: text/plain, Size: 1703 bytes --]

** Version: DPDK 18.11.1, Command Line Interface without timers
Pktgen:/>
| Ports 0-0 of 1   <Main Page>  Copyright (c) <2010-2019>, Intel Corporation
  Flags:Port        : P------Range       :0
Link State          :         <UP-10000-FD>      ---Total Rate---
Pkts/s Max/Rx       :                   2/1                   2/1
       Max/Tx       :         169576/167952         169576/167952
MBits/s Rx/Tx       :                0/1907                0/1907
Broadcast           :                     0
Multicast           :                   129
Sizes 64            :                   131
      65-127        :                     0
      128-255       :                     0
      256-511       :                     0
      512-1023      :                     0
      1024-1518     :                     0
Runts/Jumbos        :                   0/0
ARP/ICMP Pkts       :                 129/0
Errors Rx/Tx        :                   0/0
Total Rx Pkts       :                   131
      Tx Pkts       :              21803360
      Rx MBs        :                     0
      Tx MBs        :                247686
                    :
Pattern Type        :               abcd...
Tx Count/% Rate     :         Forever /100%
Pkt Size/Tx Burst   :           1400 /   64
TTL/Port Src/Dest   :         4/ 1000/ 1000
Pkt Type:VLAN ID    :       IPv4 / UDP:0001
802.1p CoS/DSCP/IPP :             0/  0/  0
VxLAN Flg/Grp/vid   :      0000/    0/    0
IP  Destination     :         192.168.168.4
    Source          :      192.168.168.3/24
MAC Destination     :     00:50:56:9b:ba:ae
    Source          :     00:50:56:9b:ef:53
PCI Vendor/Addr     :     15ad:07b0/0b:00.0

  reply index

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-18 17:25 Nirmal Sarkar
2019-11-19 17:42 ` Roberts, Lee A.
2019-11-19 20:44   ` Morten Brørup
2019-11-20 12:09     ` Nirmal Sarkar [this message]
2019-11-20 18:54       ` Wiles, Keith
2019-11-26  8:21         ` Nirmal Sarkar
2019-11-27 15:12           ` Wiles, Keith
2019-11-27 18:42             ` Nirmal Sarkar
2019-11-30  0:01   ` Wiles, Keith
2019-12-01 19:55     ` Nirmal Sarkar
2019-12-02 12:46       ` Nirmal Sarkar

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