[dpdk-users] How to install DPDK kernel module?

I have installed dpdk 18.08 on a Centos 7 machine, which has the kernel source installed. I built dpdk using: $ make -j T=x86_64-native-linuxapp-gcc install Build complete [x86_64-native-linuxapp-gcc] Installation cannot run with T defined and DESTDIR undefined I want to interface dpdk to a HP

Re: [dpdk-users] How to install DPDK kernel module?

> > On Thu, 4 Jun 2020, David Aldrich wrote: > > > I have installed dpdk 18.08 on a Centos 7 machine, which has the kernel > > source installed. > > > > I built dpdk using: > > > > $ make -j T=x86_64-native-linuxapp-gcc install > > > > Bui

[dpdk-users] 'MBUF: error setting mempool handler'

I am using some DPDK application code that worked with DPDK 2.2.0. I am trying to port it to DPDK 18.08. The code gives error: MBUF: error setting mempool handler I guess the app code that causes this is: ptRxQueInfo->pool = rte_mempool_create(buf, >nb_mbuf/2,

Re: [dpdk-users] 'MBUF: error setting mempool handler'

> > On Thu, 4 Jun 2020 17:50:18 +0100 > David Aldrich wrote: > > > > You should not be using 8.08 is not a Long Term Stable release. It is not > supported. > > I'm using 18.08 LTS > You should be using rte_pktmbuf_pool_create() rather than > rte_me

Re: [dpdk-users] 'MBUF: error setting mempool handler'

know how to fix this. I have seen other people reporting this when building the dpdk application code as a library (i.e. there were missing symbols), but I am building directly as an executable. Any suggestions please? On Fri, Jun 5, 2020 at 10:43 AM David Aldrich wrote: > On Thu, 4 Jun 20

[dpdk-users] Segmentation fault in rte_eth_devices()

Hi, I am building an app based on dpdk-stable-18.11.8. I am seeing a segmentation fault in my call to rte_eth_rx_burst(). I ran gdb on the core dump and I see: #0 0x00f65680 in rte_eth_devices () #1 0x0048a03a in rte_eth_rx_burst (nb_pkts=7, rx_pkts=0x7fab40620480, queue_id=0, p

Re: [dpdk-users] Segmentation fault in rte_eth_devices()

Following on from my question, I want to enable more debug info in DPDK. I am building DPDK using: usertools/dpdk-setup.sh Am I correct in thinking that the build commands in that script use make and I should modify the appropriate: config/defconfig_* file (defconfig_x86_64-native-linuxapp-gcc

[dpdk-users] A question about l2fwd

Hi, I have a question about the l2fwd example, which concerns a basic question about how dpdk works. The main processing loop in l2fwd is *l2fwd_main_loop()* which calls *rte_eth_rx_burst()* to retrieve packets from the rx_queue. My question is: what processing loop is responsible for transferri

[dpdk-users] Why is udp packet, sent by dpdk, received with zero'd payload?

Hi, I have a problem transmitting udp packets with dpdk-stable-18.11.8. I have posted a question about it on stackoverflow: https://stackoverflow.com/questions/62674596/why-is-udp-packet-sent-by-dpdk-received-with-zerod-payload I would be grateful for any comments either there or in this group

Re: [dpdk-users] Why is udp packet, sent by dpdk, received with zero'd payload?

> > > Are you setting data_len and packet_len in the mbuf before sending? > Yes, and I believe that the mbuf dump and the tcpdump that I included show that these lengths are set correctly. The problem is that udp payload is present but consists of all 0's.

Re: [dpdk-users] Why is udp packet, sent by dpdk, received with zero'd payload?

rte_pktmbuf_prepend(). I guess only the first segment is getting transmitted? On Wed, Jul 1, 2020 at 1:57 PM Cliff Burdick wrote: > Are you setting data_len and packet_len in the mbuf before sending? > > > On Wed, Jul 1, 2020, 03:23 David Aldrich > wrote: > >> Hi

Re: [dpdk-users] Why is udp packet, sent by dpdk, received with zero'd payload?

> rte_pktmbuf_prepend(). > > On Wed, Jul 1, 2020 at 6:41 AM David Aldrich > wrote: > >> I think this is where my lack of understanding is my problem. Looking at >> the mbuf dump: >> >> dump mbuf at 0x53e4e92c0, iova=73e4e9340, buf_len=2176 >> pkt_len=5

Re: [dpdk-users] Why is udp packet, sent by dpdk, received with zero'd payload?

> In this case, it's zeroes. It could be whatever garbage was lying around > from the last user of the MBuf. > > Let me know if that's an accurate description of what your application is > doing, or if I've misunderstood. > > On Wed, Jul 1, 2020 at 10:07 AM David

[dpdk-users] DPDK 18.11 HW checksum support for X722 NIC?

I am running dpdk-stable-18.11.8 on Centos 7, targeting an Intel X722 NIC. I want ipv4 and udp header checksums to be calculated by hardware, so I set the device configuration to: struct rte_eth_conf local_port_conf; memset(&local_port_conf, 0, sizeof(struct rte_eth_conf)); local_port_conf.rxmode

[dpdk-users] HW offloaded calculation of UDP checksum not working

Viewed 3 times 0 I am working with DPDK version 18.11.8 stable on Linux with an Intel X722 NIC. My app works fine if I calculate IP and UDP checksums in software but I get a segmentation fault if I calculate in hardware. Here is my code: local_port_conf.txmode.offloads = local_port_conf.txmode.o

[dpdk-users] How to build dpdk with shared libraries?

I am using dpdk-stable-18.11.8 on Centos 7 with gcc compiler. I build dpdk using: usertools/dpdk-setup.sh option 15 'x86_64-native-linuxapp-gcc' This builds static libraries in: x86_64-native-linuxapp-gcc/lib I want to use shared libraries. I believe the required setting is: “CONFIG_RTE_BUILD_

[dpdk-users] Missing symbol 'rte_cpu_get_flag_enabled@@DPDK_2.0'

Hi I have built a single shared library consisting of my code and multiple dpdk libraries, using dpdk-stable-18.11.8 on Centos 7 with the gcc compiler. When I link the library to my main.cpp I get linker error: undefined reference to symbol 'rte_cpu_get_flag_enabled@@DPDK_2.0' Now, I see: $ nm

Re: [dpdk-users] Missing symbol 'rte_cpu_get_flag_enabled@@DPDK_2.0'

I think this is fixed now. I am building with CMake and needed to declare the target libraries as PUBLIC not PRIVATE. On Tue, Jul 14, 2020 at 12:25 PM David Aldrich wrote: > Hi > I have built a single shared library consisting of my code and multiple > dpdk libraries, using dpdk-stabl

[dpdk-users] How to specify driver with EAL option when using shared libraries?

Hi I understand that when compiling DPDK with CONFIG_RTE_BUILD_SHARED_LIB=y, the driver must be explicitly set with the '-d' EAL option. I am using an Intel X722 NIC. What should my '-d' EAL option be set to? Best regards David

[dpdk-users] How to build DPDK using Redhat Software Collection 7?

Hi I am running DPDK 18.11 (LTS) on Centos 7. I have built it using gcc 4.8.5. My application is built using Redhat Software Collection 7, i.e. gcc 7.3.1. When I link DPDK to my application the linker complains of multiple symbol definitions. Might I be right in thinking that this is caused by m

[dpdk-users] How to receive jumbo packets?

Hi Our dpdk application uses dpdk-stable-18.11.9. It successfully receives udp packets <1500 octets, but does not correctly process larger udp packets. I don't know where to look. Is there a DPDK function that sets or takes the MTU size for reception? How would jumbo packets typically be support

Re: [dpdk-users] How to receive jumbo packets?

Hi Stephen > Did you configure larger mtu and enable jumbo in the rx_conf? No, I hadn't done that. Working now. Thanks! David On Wed, Aug 5, 2020 at 7:00 PM Stephen Hemminger wrote: > On Wed, 5 Aug 2020 18:38:01 +0100 > David Aldrich wrote: > > > Hi > > >

[dpdk-users] How to fix segmentation fault with large mempool (to support jumbo packets) ?

Hi I have a problem with transmitting jumbo packets with DPDK. The code snippets below show how I create a mempool and then how I send the packet. (This is highly simplified - I haven't shown how I allocate the mbuf or assign the packet data). My problem is that this works fine for small mbufs (BU

[dpdk-users] Basic hugepages question

Hi Having successfully demonstrated using dpdk with our application, it's been pointed out to me that our settings are using a very large amount of memory. I am initialising the EAL with: -m 16000 i.e. 16GB! However, I am only specifying a count of 0x4000 to rte_ring_create(), which I call twi

Re: [dpdk-users] Basic hugepages question

Thank you for your reply. I estimate the mbuf pools to be ~150MB. So would a sensible hugepages configuration be 100 pages of 2MB each? On Wed, Dec 9, 2020 at 5:00 PM Stephen Hemminger wrote: > On Wed, 9 Dec 2020 16:34:29 + > David Aldrich wrote: > > > Hi > > &g

[dpdk-users] testpmd fails to run because librte_pmd_bond.so is missing

Hi I have built and installed DPDK v.18.11.9 on Centos 7 using x86_64-native-linuxapp-gcc and option: CONFIG_RTE_BUILD_SHARED_LIB=y We want to run testpmd but it fails to load: $ ./x86_64-native-linuxapp-gcc/app/testpmd ./x86_64-native-linuxapp-gcc/app/testpmd: error while loading shared lib

[dpdk-users] IGB UIO vs i40e PMD ?

Hi Our DPDK application interfaces with an Intel X722 NIC. We use the IGB UIO module. We now need to interface to a different NIC (on a custom FPGA). I've been asked to connect to it using IGB UIO but have been told we may need to use i40e PMD instead. I don't understand whether IGB UIO and i40e

[dpdk-users] Intel x722 loopback mode

Hi I am trying to use an Intel x722 NIC with DPDK v.19.11.7 in loopback mode. I have set: struct rte_eth_conf local_port_conf; local_port_conf.lpbk_mode = 1; rte_eth_dev_configure(a_portId, a_numOfRxQue, a_numOfTxQue, &local_port_conf)) but I am not seeing transmitted packets appear on the rece

[dpdk-users] Help needed to interface to new device

Hi We currently use DPDK v.18.11.9 with a 10GBe NIC based on the Intel X722 chipset. We bind to that device using the command: usertools/dpdk-devbind.py -b igb_uio `lspci | grep X722 | awk '{print $1}'` and it works ok. Now we need to bind to a different NIC, which is part of an in-house FPGA

Re: [dpdk-users] Help needed to interface to new device

> If you are talking about a XX710/N3000 device, I think its support was > added in 19.05. > No 18.11 driver supports this nic, you can probably have a try with > the next LTS release 19.11, or the latest LTS which is 20.11. Thanks for your reply. Yes, I am talking about the Intel N3000 FPGA accel

Re: [dpdk-users] Help needed to interface to new device

> >Surprised this does not work with v19.11. > >I'll let Intel developers/maintainers sort this out > Thanks. I've also posted a form of my question on StackOverflow: How to use DPDK IPN3KE Poll Mode Driver? - Stack Overflow

[dpdk-users] Problems building pktgen

Hi I am trying to build DPDK PktGen on Centos 7 using gcc 4.8.5, using the HEAD revisions of DPDK and pktgen. The build is failing: [76/2153] /usr/bin/meson --internal exe --capture lib/ip_frag.sym_chk -- /data/daldrich/pktgen/dpdk/buildtools/check-symbols.sh /data/daldrich/pktgen/dpdk/lib/libr

Re: [dpdk-users] Problems building pktgen

> > Let me know if you can not get it working with the step I provided, the > problem will be I do not build Pktgen on CentOS. Thank you for your help, it is building ok now. Where is the best place to ask for help with using pktgen?

[dpdk-users] Checksum offloading changes in DPDK v.19?

Hi Since upgrading from DPDK 18.11.9 to 19.11.8 UDP TX checksum offloading has stopped working on our X722 device. I enable offloading as follows: First I check the device capability: struct rte_eth_dev_info dev_info; rte_eth_dev_info_get(a_portId, &dev_info); if ((dev_info.tx_offload_capa & DE

[dpdk-users] Beginner question: UDP Echo Server Example?

Hi I am just getting started with DPDK. I want to send and receive UDP packets using DPDK. I saw a reference to a UDP Echo Server example, which I think would help me, but can't find the code. Is that example still available? Best regards David

[dpdk-users] Is DPDK compatible with C++11 threads?

Hi As a beginner with DPDK, I want to consider how we can convert an existing Linux application from using the kernel network stack to using DPDK. This existing app is multi-threaded, using the C++11 thread, mutex etc. classes. We assign threads to cores by calling pthread_setaffinity_np(). I

[dpdk-users] Is DPDK compatible with C++11 threads?

of understanding of the basics of how dpdk works, but I am just starting to understand it. With best regards David From: Pavey, Nicholas [mailto:npa...@akamai.com] Sent: 08 November 2016 17:23 To: Wiles, Keith ; David Aldrich Cc: users at dpdk.org Subject: Re: [dpdk-users] Is DPDK compatible

[dpdk-users] Problem building DPDK libraries

Hi I am trying to build DPDK 16.07.1 on Wind River Linux 8. 'make' fails: # make [snip] CC rte_spinlock.o AR librte_eal.a SYMLINK-FILE include/exec-env/rte_interrupts.h SYMLINK-FILE include/exec-env/rte_kni_common.h SYMLINK-FILE include/exec-env/rte_dom0_common.h INSTALL-LIB librte_e

[dpdk-users] Problem building DPDK libraries

[5]: *** Waiting for unfinished jobs Best regards David > -Original Message- > From: Thomas Monjalon [mailto:thomas.monjalon at 6wind.com] > Sent: 17 November 2016 16:00 > To: David Aldrich > Cc: users at dpdk.org > Subject: Re: [dpdk-users] Problem building DPDK

[dpdk-users] Problem building DPDK libraries

Hi I'm using: # gcc --version gcc (Wind River Linux 5.2.0-8.0-intel-haswell-64) 5.2.0 I'll consider the tmp space. Thanks David > -Original Message- > From: Wiles, Keith [mailto:keith.wiles at intel.com] > Sent: 17 November 2016 16:10 > To: David Aldrich

[dpdk-users] Problem building DPDK libraries

The allocation for /tmp is 7.9G, which is almost entirely unused. David > -Original Message- > From: users [mailto:users-bounces at dpdk.org] On Behalf Of David Aldrich > Sent: 17 November 2016 16:25 > To: Wiles, Keith > Cc: Thomas Monjalon ; users at dpdk.org > Subjec

[dpdk-users] Problem building DPDK libraries

oesn't work currently for me. David > -----Original Message- > From: David Aldrich > Sent: 17 November 2016 16:29 > To: 'David Aldrich' ; Wiles, Keith > > Cc: Thomas Monjalon ; users at dpdk.org > Subject: RE: [dpdk-users] Problem building DPDK libraries &

[dpdk-users] Problem building DPDK libraries

Thanks. Do I need to do ?make install? or is ?make? sufficient? David From: Pavey, Nicholas [mailto:npa...@akamai.com] Sent: 17 November 2016 16:55 To: David Aldrich ; Wiles, Keith Cc: Thomas Monjalon ; users at dpdk.org Subject: Re: [dpdk-users] Problem building DPDK libraries Yes, I?ve

[dpdk-users] Problem building DPDK libraries

2.0/mk/rte.sdkinstall.mk:116: recipe for target 'install-runtime' failed make[3]: *** [install-runtime] Error 1 David > -Original Message- > From: Wiles, Keith [mailto:keith.wiles at intel.com] > Sent: 17 November 2016 17:00 > To: David Aldrich > Cc: Pavey, Nich

[dpdk-users] Problem building DPDK libraries

I see: # make install T=x86_64-native-linuxapp-gcc install Installation cannot run with T defined and DESTDIR undefined David > -Original Message- > From: Wiles, Keith [mailto:keith.wiles at intel.com] > Sent: 17 November 2016 17:16 > To: David Aldrich > Cc: Pavey, Ni

[dpdk-users] UDP stack for DPDK?

Hi I am a beginner with DPDK. I am working on a high-throughput networking application that services a single 10Gb/s Ethernet connection using a NIC that uses the Intel 560SFP+ chipset. I am working with Wind River Linux, but will develop a test version under Ubuntu 14.04 LTS. The network con

[dpdk-users] Newbie: Help requested to get l2fwd example working

Hi To get familiar with DPDK, I am running the l2fwd example on a PC running Wind River Linux and fitted with an HP 560SFP+ 2-port NIC. I enable one port for l2fwd and send UDP packets to it from another PC. The problem is that the l2fwd example does not report these packets in its statistic

Re: [dpdk-users] Newbie: Help requested to get l2fwd example working

Hi Mark Thanks for your reply. Below is the entire output. Best regards David --- # build/l2fwd -c f -n2 -- -q 2 -p 3 EAL: Detected lcore 0 as core 0 on socket 0 EAL: Detected lcore 1 as core 1 on socket 0 EAL: Detected lcore 2 as core 2 on soc

Re: [dpdk-users] Newbie: Help requested to get l2fwd example working

If anyone can help me with this issue I would be grateful. David

Re: [dpdk-users] Newbie: Help requested to get l2fwd example working

kets are not indicated in the statistics. I need to find out why. BR David > -Original Message- > From: zhilong zheng [mailto:zhengzl0...@gmail.com] > Sent: 16 January 2017 03:13 > To: David Aldrich > Cc: users@dpdk.org > Subject: Re: [dpdk-users] Newbie: Help requeste

Re: [dpdk-users] Newbie: Help requested to get l2fwd example working

Hi Zhilong I have written a simple program in C, which sends udp packets. Which sender are you using? David From: zhilong zheng [mailto:zhengzl0...@gmail.com] Sent: 16 January 2017 13:38 To: David Aldrich Cc: users@dpdk.org Subject: Re: [dpdk-users] Newbie: Help requested to get l2fwd example

Re: [dpdk-users] Newbie: Help requested to get l2fwd example working

Hi I’ve tried sending packets with packETH, and I have tried using testpmd (instead of l2fwd) to receive them. I still see no packets. Any other suggestions please? Best regards David From: zhilong zheng [mailto:zhengzl0...@gmail.com] Sent: 16 January 2017 13:48 To: David Aldrich Cc: users

Re: [dpdk-users] Newbie: Help requested to get l2fwd example working

In case it helps anyone, adding kernel boot parameter: intel_iommu=off seems to have fixed my problem. l2fwd is now receiving packets. best regards David

[dpdk-users] Can't find rte_net_get_ptype()

Hi I'm building against DPDK 16.11 using Wind River Linux 8. Having upgraded from DPDK 16.04 I now get linker error: /bitbake_build/tmp/work/intel_haswell_64-wrs-linux/dpdk/16.11-r0/git/drivers/net/virtio/virtio_rxtx.c:634: undefined reference to `rte_net_get_ptype' Which library contains rte

Re: [dpdk-users] Can't find rte_net_get_ptype()

Fixed by removing -lrte_pmd_virtio from library list.

[dpdk-users] How to install dpdk 16.11 on Fedora 22?

Hi I want to install dpdk 16.11 on Fedora 22. I think the package is 2.2.0 so I must install from source. I know how to build dpdk using: make install T= but the resulting files live in my home directory. Is there an easy way to install to the system directories? Best regards David

DPDK and O-RAN Wls Wireless Service Library

in DPDK's build/lib/ directory. Is this because I am using an incompatible version of DPDK? Or have I built DPDK without necessary options? Or without a necessary patch? I would be grateful for any advice please. Best regards David David Aldrich | D

Minimal application to send/receive udp packets on Broadcom 57504 adaptor?

Hi Our C++ application requires to send/receive udp packets via a Broadcom 57504 adaptor. A DPDK poll mode driver is available for this adaptor. Is there a DPDK example application that I can adapt for this purpose? I'd be grateful for some guidance on how to go about this please. Best regards

Unable to build igb_uio

Hi I am using DPDK 23.11.1. I need to build and install linux kernel module igb_uio. There are instructions here: https://doc.dpdk.org/dts/gsg/usr_guide/igb_uio.html that instruct to clone the dpdk-kmods repo: # git clone http://dpdk.org/git/dpdk-kmods and they state the contents should be: #

Re: Unable to build igb_uio

nding step still required and, if so, what parameters are now required? Best regards David On Fri, Jul 26, 2024 at 6:30 PM Stephen Hemminger wrote: > > On Fri, 26 Jul 2024 16:04:07 +0100 > David Aldrich wrote: > > > Hi > > I am using DPDK 23.11.1. I need to build and insta

Re: Unable to build igb_uio

gt; > On Mon, Jul 29, 2024 at 2:02 PM David Aldrich > wrote: >> >> Hi Stephen and Oleksandr >> >> Thanks for your replies. >> >> I guess the documentation I'm looking at is out-of-date, but the >> Broadcom app note I'm looking at

Help needed with hugepages and binding ports

Hi, We are running DPDK v.19.11.14 on Ubuntu 22.04 LTS. Our goal is to use DPDK to accelerate UDP communication on a Broadcom 57504 network controller. I have some problems with hugepages and binding of ports and would be grateful for some help please. 1) Firstly, regarding hugepages, our kernel

How to build DPDK without usertools/dpdk-setup.sh?

Hi With dpdk v.19.11.14 I built dpdk for target 'x86_64-native-linux-gcc' using usertools/dpdk-setup.sh (option 44). The resulting directory structure included: $ ls dpdk-stable-19.11.14/x86_64-native-linux-gcc app build include kmod lib Makefile I am now moving to dpdk v.20.11.10 in which

Re: How to build DPDK without usertools/dpdk-setup.sh?

Hi David Thanks for your reply, > The only trick is to pass a -Dprefix=$(pwd)/install and make your > application use this directory. meson -Dexamples=all -Dprefix="/" build is doing what I need. I do have a further problem. The resulting build has no pmd drivers. It is probably relevant that

Re: How to build DPDK without usertools/dpdk-setup.sh?

September 11, 2024 4:52 PM > > To: David Aldrich > > Cc: users ; Richardson, Bruce > > > > Subject: Re: How to build DPDK without usertools/dpdk-setup.sh? > > > > Hello, > > > > On Wed, Sep 11, 2024 at 3:39 PM David Aldrich > > wrote: > >

How to build bnxt pdm driver and static driver libraries?

Hi As mentioned earlier today, I am trying to build dpdk v.20.11.10. I now build with: $ sudo meson -Dexamples=all -Dprefix="/" -Ddisable_drivers=common/mvep,common/mlx5,net/mvneta,net/mvpp2,net/nfb,net/mlx4,net/mlx5,\ crypto/qat,crypto/aesni_gcm,crypto/aesni_mb,crypto/armv8,crypto/ccp,crypto/kas

Struggling with meson in dpdk 21.11

Hi I am upgrading from dpdk 19.11 to 21.11. With 19.11 I built dpdk with usertools/dpdk-setup.sh option 44, which built dpdk for x64 on Linux and installed it to: /opt/intel/dpdk-stable-19.11.14/x86_64-native-linux-gcc/ I want to reproduce similar behaviour in 21.11 as I may have several version

Re: Struggling with meson in dpdk 21.11

Thanks for your help. I seem to have a working solution now. On Tue, Sep 17, 2024 at 9:21 PM Aldrin wrote: > > Actually, I misunderstood destdir and some of the other context, my apologies. > > I do think that it makes more sense to use "x86_64-native-linux-gcc" as a > prefix and "/opt/intel/dpd