Projet

Général

Profil

DPDK » Historique » Version 47

Laurent GUERBY, 26/12/2015 22:52

1 1 Laurent GUERBY
{{>toc}}
2 1 Laurent GUERBY
3 1 Laurent GUERBY
h1. DPDK
4 1 Laurent GUERBY
5 1 Laurent GUERBY
Traitement haute performance en logiciel, 10 Gbit/s en petit paquets line rate
6 1 Laurent GUERBY
7 1 Laurent GUERBY
h2. Liens
8 1 Laurent GUERBY
9 1 Laurent GUERBY
* http://dpdk.org
10 1 Laurent GUERBY
* [[AtelierPPS2012]]
11 16 Laurent GUERBY
* GIT http://chiliproject.tetaneutral.net/projects/git-tetaneutral-net/repository/dpdk
12 16 Laurent GUERBY
<pre>
13 16 Laurent GUERBY
$ git clone ssh://git@git.tetaneutral.net/dpdk.git
14 16 Laurent GUERBY
</pre>
15 16 Laurent GUERBY
16 17 Laurent GUERBY
* Nerim Antoine https://twitter.com/nerim_net/status/517592380841930752
17 17 Laurent GUERBY
** Du code maison fondé sur #DPDK en prod dans le réseau : première étape vers l'élimination des systèmes propriétaires ?
18 2 Laurent GUERBY
19 2 Laurent GUERBY
h2. Misc
20 2 Laurent GUERBY
21 45 Laurent GUERBY
* http://www.intel.fr/content/dam/www/public/us/en/documents/datasheets/82599-10-gbe-controller-datasheet.pdf
22 45 Laurent GUERBY
* http://www.intel.fr/content/dam/www/public/us/en/documents/datasheets/82598-10-gbe-controller-datasheet.pdf
23 44 Laurent GUERBY
* MoonGen: A Scriptable High-Speed Packet Generator
24 44 Laurent GUERBY
** http://arxiv.org/pdf/1410.3322.pdf
25 44 Laurent GUERBY
** http://www.net.in.tum.de/fileadmin/bibtex/publications/papers/MoonGen_IMC2015.pdf
26 44 Laurent GUERBY
** https://github.com/emmericp/MoonGen
27 26 Laurent GUERBY
* https://www.kernel.org/doc/Documentation/networking/switchdev.txt
28 25 Laurent GUERBY
* https://www.usenix.org/conference/osdi14/technical-sessions/presentation/belay
29 25 Laurent GUERBY
** IX: A Protected Dataplane Operating System for High Throughput and Low Latency
30 25 Laurent GUERBY
** http://www.linuxfoundation.org/images/1/1c/Network_data_flow_through_kernel.png
31 25 Laurent GUERBY
** http://www.linuxfoundation.org/collaborate/workgroups/networking/kernel_flow
32 23 Laurent GUERBY
* https://blog.cloudflare.com/how-to-receive-a-million-packets/
33 23 Laurent GUERBY
** How to receive a million packets per second
34 24 Laurent GUERBY
* https://blog.cloudflare.com/how-to-achieve-low-latency/
35 21 Laurent GUERBY
* http://www.cs.cmu.edu/~dongz/papers/cuckooswitch.pdf
36 22 Laurent GUERBY
** We show that CUCKOOSWITCH can process 92.22 million minimum sized packets per second on a commodity server equipped with eight 10 Gbps Ethernet interfaces while maintaining a forwarding table of one billion forwarding entries.
37 18 Laurent GUERBY
* Improving Linux networking performance https://lwn.net/Articles/629155/
38 18 Laurent GUERBY
** https://www.youtube.com/watch?v=3XG9-X777Jo
39 19 Laurent GUERBY
** http://people.netfilter.org/hawk/presentations/LCA2015/net_stack_challenges_100G_LCA2015.pdf
40 20 Laurent GUERBY
* http://www.bigswitch.com/sites/default/files/presentations/onug-baremetal-2014-final.pdf
41 2 Laurent GUERBY
* Intel PCI id http://www.intel.com/support/network/sb/cs-012904.htm
42 3 Laurent GUERBY
* http://www.intel.com/content/www/us/en/ethernet-controllers/ethernet-products.html?iid=embed_portal+hdprod_ethernet#s1=Gigabit%20Ethernet&s2=all&s3=all
43 3 Laurent GUERBY
* Intel Pro/1000 PT vs CT http://hardforum.com/showthread.php?t=1386042
44 4 Laurent GUERBY
* http://images.ncix.com/forumimages/C9864B87-583B-10FB-B0DE80742781CE07.jpg
45 4 Laurent GUERBY
* http://www.intel.com/content/www/us/en/ethernet-controllers/ethernet-controllers.html#s1=all&s2=82572EI&s3=all
46 4 Laurent GUERBY
* http://www.intel.com/content/www/us/en/ethernet-controllers/ethernet-controllers.html#s1=all&s2=82574L&s3=all
47 5 Laurent GUERBY
* https://github.com/Pktgen/Pktgen-DPDK
48 6 Laurent GUERBY
* Evaluating the Suitability of Server Network Cards for Software Routers http://kfall.net/ucbpage/papers/snc.pdf
49 13 Laurent GUERBY
* http://www.intel.fr/content/dam/www/public/us/en/documents/guides/intel-dpdk-sample-applications-user-guide.pdf
50 13 Laurent GUERBY
*  rte_eth_rx_burst
51 13 Laurent GUERBY
** http://dpdk.org/doc/api/rte__ethdev_8h.html#a5ac93faa0f3f69545ca121dcfd9433f5
52 13 Laurent GUERBY
** http://dpdk.info/ml/archives/dev/2014-January/001223.html
53 14 Laurent GUERBY
* http://www.intel.fr/content/dam/www/public/us/en/documents/white-papers/aes-ipsec-performance-linux-paper.pdf
54 15 Laurent GUERBY
* http://networkbuilders.intel.com/docs/Network_Builders_RA_vBRAS_Final.pdf
55 15 Laurent GUERBY
56 15 Laurent GUERBY
* https://github.com/SnabbCo/snabbswitch
57 15 Laurent GUERBY
** https://github.com/SnabbCo/snabbswitch/blob/master/src/apps/intel/intel10g.lua
58 15 Laurent GUERBY
** http://blog.ipspace.net/2014/06/snabb-switch-and-nfv-on-openstack-in.html
59 15 Laurent GUERBY
** https://github.com/SnabbCo/snabbswitch/wiki/Snabb-Lab
60 15 Laurent GUERBY
** https://twitter.com/lukego/status/327714050219847680
61 7 Mehdi Abaakouk
62 7 Mehdi Abaakouk
h2. Note sileht dpdk:
63 7 Mehdi Abaakouk
64 7 Mehdi Abaakouk
Extract from: http://www.intel.com/content/dam/www/public/us/en/documents/guides/intel-dpdk-getting-started-guide.pdf
65 7 Mehdi Abaakouk
66 7 Mehdi Abaakouk
h3. configuration hugepages: 
67 7 Mehdi Abaakouk
68 7 Mehdi Abaakouk
* 2M (1024*2k): hugepages=1024 (at runtime: echo 1024 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages)
69 7 Mehdi Abaakouk
* 4G (4x1G): default_hugepagesz=1G hugepagesz=1G hugepages=4 (only works at boot time via grub)
70 7 Mehdi Abaakouk
71 7 Mehdi Abaakouk
<pre>
72 7 Mehdi Abaakouk
mkdir /mnt/huge
73 7 Mehdi Abaakouk
mount -t hugetlbfs nodev /mnt/huge
74 7 Mehdi Abaakouk
</pre>
75 7 Mehdi Abaakouk
76 7 Mehdi Abaakouk
h3. Compile and load modules: 
77 7 Mehdi Abaakouk
78 7 Mehdi Abaakouk
_Note: source tools/setup.sh is a helper tools for this but works only with IGB driver not e1000e_
79 7 Mehdi Abaakouk
80 1 Laurent GUERBY
<pre>
81 8 Mehdi Abaakouk
# apt-get install make gcc linux-headers-amd64
82 8 Mehdi Abaakouk
# make config T=x86_64-default-linuxapp-gcc
83 7 Mehdi Abaakouk
# make T=x86_64-default-linuxapp-gcc
84 7 Mehdi Abaakouk
..
85 7 Mehdi Abaakouk
Build complete
86 7 Mehdi Abaakouk
87 7 Mehdi Abaakouk
# modprobe uio  (I think this is not useful)
88 7 Mehdi Abaakouk
# insmod build/kmod/rte_kni.ko (I think this is not useful)
89 7 Mehdi Abaakouk
# insmod build/kmod/igb_uio.ko (I think this is not useful)
90 7 Mehdi Abaakouk
# ./tools/pci_unbind.py --status
91 7 Mehdi Abaakouk
92 7 Mehdi Abaakouk
Network devices using IGB_UIO driver
93 7 Mehdi Abaakouk
====================================
94 7 Mehdi Abaakouk
<none>
95 7 Mehdi Abaakouk
96 7 Mehdi Abaakouk
Network devices using kernel driver
97 7 Mehdi Abaakouk
===================================
98 9 Mehdi Abaakouk
0000:00:19.0 '82579LM Gigabit Network Connection' if=eth1 drv=e1000e unused=<none>
99 9 Mehdi Abaakouk
0000:01:00.0 '82599EB 10-Gigabit SFI/SFP+ Network Connection' if=eth6 drv=ixgbe unused=igb_uio *Active*
100 9 Mehdi Abaakouk
0000:01:00.1 '82599EB 10-Gigabit SFI/SFP+ Network Connection' if=eth7 drv=ixgbe unused=igb_uio
101 9 Mehdi Abaakouk
0000:04:00.0 '82571EB Gigabit Ethernet Controller' if=eth2 drv=e1000e unused=igb_uio *Active*
102 9 Mehdi Abaakouk
0000:04:00.1 '82571EB Gigabit Ethernet Controller' if=eth3 drv=e1000e unused=igb_uio
103 9 Mehdi Abaakouk
0000:05:00.0 '82571EB Gigabit Ethernet Controller' if=eth4 drv=e1000e unused=igb_uio
104 9 Mehdi Abaakouk
0000:05:00.1 '82571EB Gigabit Ethernet Controller' if=eth5 drv=e1000e unused=igb_uio
105 9 Mehdi Abaakouk
0000:06:00.0 'RTL8111/8168B PCI Express Gigabit Ethernet controller' if=eth0 drv=r8169 unused=<none> *Active*
106 1 Laurent GUERBY
107 1 Laurent GUERBY
Other network devices
108 1 Laurent GUERBY
=====================
109 1 Laurent GUERBY
<none>
110 9 Mehdi Abaakouk
</pre>
111 7 Mehdi Abaakouk
112 9 Mehdi Abaakouk
test sur eth7:
113 9 Mehdi Abaakouk
114 9 Mehdi Abaakouk
<pre>
115 9 Mehdi Abaakouk
# ip link set eth7 down
116 9 Mehdi Abaakouk
# ./tools/pci_unbind.py --bind=igb_uio 0000:01:00.1
117 7 Mehdi Abaakouk
</pre>
118 7 Mehdi Abaakouk
119 7 Mehdi Abaakouk
h3. Prepare examples programs:
120 7 Mehdi Abaakouk
121 7 Mehdi Abaakouk
<pre>
122 7 Mehdi Abaakouk
# export RTE_SDK=/root/sileht/dpdk-1.6.0r1
123 7 Mehdi Abaakouk
# export RTE_TARGET=build
124 7 Mehdi Abaakouk
# cd /root/sileht/
125 7 Mehdi Abaakouk
# cp -r $RTE_SDK/examples/helloworld my_rte_app
126 7 Mehdi Abaakouk
# cd my_rte_app
127 7 Mehdi Abaakouk
# make
128 7 Mehdi Abaakouk
</pre>
129 7 Mehdi Abaakouk
130 7 Mehdi Abaakouk
131 7 Mehdi Abaakouk
h3. Tests
132 7 Mehdi Abaakouk
133 7 Mehdi Abaakouk
<pre>
134 1 Laurent GUERBY
</pre>
135 10 Mehdi Abaakouk
136 11 Mehdi Abaakouk
h2. Limitation SPF carte intel:
137 10 Mehdi Abaakouk
138 11 Mehdi Abaakouk
Une fois le module igb_uio changé sur les:
139 10 Mehdi Abaakouk
140 10 Mehdi Abaakouk
<pre>
141 10 Mehdi Abaakouk
01:00.0 Ethernet controller: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection (rev 01)
142 10 Mehdi Abaakouk
</pre>
143 10 Mehdi Abaakouk
144 11 Mehdi Abaakouk
Un flags de l'eeprom change et le module ixgbe ne charge plus les ports de la carte qui n'ont pas des SFP+ intel avec le message d'erreur suivant:
145 10 Mehdi Abaakouk
146 10 Mehdi Abaakouk
<pre>
147 10 Mehdi Abaakouk
[  563.069683] ixgbe 0000:01:00.0: failed to load because an unsupported SFP+ or QSFP module type was detected.
148 10 Mehdi Abaakouk
[  563.069786] ixgbe 0000:01:00.0: Reload the driver after installing a supported module.
149 10 Mehdi Abaakouk
</pre>
150 10 Mehdi Abaakouk
151 10 Mehdi Abaakouk
Pour contourner le problème:
152 10 Mehdi Abaakouk
153 10 Mehdi Abaakouk
<pre>
154 10 Mehdi Abaakouk
modprobe ixgbe allow_unsupported_sfp=1 # allow_any_sfp=1 suivant le kernel
155 10 Mehdi Abaakouk
</pre>
156 10 Mehdi Abaakouk
157 10 Mehdi Abaakouk
ou 
158 10 Mehdi Abaakouk
159 1 Laurent GUERBY
<pre>
160 1 Laurent GUERBY
echo "options ixgbe allow_unsupported_sfp=1" > /etc/modprobe.d/ixgbe_any_sfp.conf
161 1 Laurent GUERBY
update-initramfs -u -k all
162 11 Mehdi Abaakouk
</pre>
163 11 Mehdi Abaakouk
164 11 Mehdi Abaakouk
La carte fonctionnera à nouveau avec le message suivant:
165 11 Mehdi Abaakouk
166 11 Mehdi Abaakouk
<pre>
167 11 Mehdi Abaakouk
[  908.361767] ixgbe 0000:01:00.0 (unregistered net_device): WARNING: Intel (R) Network Connections are quality tested using Intel (R) Ethernet Optics.  Using untested modules is not supported and may cause unstable operation or damage to the module or the adapter.  Intel Corporation is not responsible for any harm caused by using untested modules.
168 10 Mehdi Abaakouk
</pre>
169 12 Laurent GUERBY
170 27 Laurent GUERBY
h2. Packet Journey
171 1 Laurent GUERBY
172 27 Laurent GUERBY
https://www.gandi.net/news/en/2015-12-16/6308-packet-journey_a_free_software_router_for_linux_based_on_dpdk/
173 27 Laurent GUERBY
https://github.com/gandi/packet-journey
174 27 Laurent GUERBY
175 27 Laurent GUERBY
h2. Atelier 2016
176 27 Laurent GUERBY
177 1 Laurent GUERBY
<pre>
178 28 Laurent GUERBY
core i7 2600 @ 3.40GHz
179 31 Laurent GUERBY
 fpu vme de pse tsc msr pae mce cx8 
180 31 Laurent GUERBY
 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 
181 31 Laurent GUERBY
 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl 
182 31 Laurent GUERBY
 xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 
183 31 Laurent GUERBY
 cx16 xtpr pdcm pcid sse4_1 sse4_2 
184 31 Laurent GUERBY
 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid
185 28 Laurent GUERBY
16G RAM
186 28 Laurent GUERBY
SSD 250G
187 28 Laurent GUERBY
</pre>
188 28 Laurent GUERBY
189 28 Laurent GUERBY
<pre>
190 28 Laurent GUERBY
host eth DHCP          10G-a                                           10G-b
191 28 Laurent GUERBY
t1   54:04:a6:ef:a8:c7 00:1b:21:d9:28:55 fe80::21b:21ff:fed9:2855(t2b) 00:1b:21:d9:28:54 fe80::21b:21ff:fed9:2854(t3b)
192 28 Laurent GUERBY
t2   e0:69:95:2e:e6:a2 00:1b:21:d9:1a:e1 fe80::21b:21ff:fed9:1ae1(t3a) 00:1b:21:d9:1a:e0 fe80::21b:21ff:fed9:1ae0(t1a)
193 28 Laurent GUERBY
t3   bc:ae:c5:e1:b2:6d 00:1b:21:d9:df:3d fe80::21b:21ff:fed9:df3d(t2a) 00:1b:21:d9:df:3c fe80::21b:21ff:fed9:df3c(t1b)
194 27 Laurent GUERBY
</pre>
195 29 Laurent GUERBY
196 33 Laurent GUERBY
https://github.com/Gandi/packet-journey
197 30 Laurent GUERBY
http://dpdk.org/doc/guides/linux_gsg/build_dpdk.html
198 1 Laurent GUERBY
http://dpdk.org/doc/quick-start
199 40 Laurent GUERBY
http://dpdk.org/browse/apps/pktgen-dpdk/tree/README.md
200 40 Laurent GUERBY
http://dpdk.org/doc/guides/testpmd_app_ug/index.html
201 47 Laurent GUERBY
202 47 Laurent GUERBY
203 46 Laurent GUERBY
http://www.slideshare.net/movilforum/7-hands-on
204 47 Laurent GUERBY
http://p4.org/wp-content/uploads/2015/11/Princeton-Demo-Poster.pdf
205 30 Laurent GUERBY
206 29 Laurent GUERBY
<pre>
207 33 Laurent GUERBY
apt-get build-dep linux-image-3.16.0-30-generic
208 33 Laurent GUERBY
apt-get install emacs24-nox libpcap-dev tcpdump iperf iperf3 screen rsync socat bzip2 xz-utils
209 33 Laurent GUERBY
</pre>
210 33 Laurent GUERBY
211 33 Laurent GUERBY
Patch :
212 33 Laurent GUERBY
https://github.com/Gandi/packet-journey/issues/20
213 33 Laurent GUERBY
214 33 Laurent GUERBY
<pre>
215 29 Laurent GUERBY
modprobe uio_pci_generic
216 37 Laurent GUERBY
mkdir -p /mnt/huge
217 37 Laurent GUERBY
mount -t hugetlbfs nodev /mnt/huge
218 37 Laurent GUERBY
echo 256 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages
219 37 Laurent GUERBY
220 29 Laurent GUERBY
git clone https://github.com/Gandi/packet-journey.git
221 1 Laurent GUERBY
git clone http://dpdk.org/git/apps/pktgen-dpdk
222 29 Laurent GUERBY
git clone http://dpdk.org/git/dpdk-stable
223 37 Laurent GUERBY
wget http://dpdk.org/browse/dpdk/snapshot/dpdk-2.2.0.tar.gz
224 30 Laurent GUERBY
tar xf dpdk-2.2.0.tar.gz
225 37 Laurent GUERBY
226 30 Laurent GUERBY
cd dpdk-2.2.0
227 30 Laurent GUERBY
make config T=x86_64-native-linuxapp-gcc
228 32 Laurent GUERBY
make install T=x86_64-native-linuxapp-gcc
229 1 Laurent GUERBY
export RTE_SDK=/root/dpdk-2.2.0
230 32 Laurent GUERBY
export RTE_TARGET=x86_64-native-linuxapp-gcc
231 38 Laurent GUERBY
./tools/dpdk_nic_bind.py -s
232 38 Laurent GUERBY
./tools/dpdk_nic_bind.py --bind=uio_pci_generic 0000:01:00.0
233 38 Laurent GUERBY
./tools/dpdk_nic_bind.py --bind=uio_pci_generic 0000:01:00.1
234 42 Laurent GUERBY
./x86_64-native-linuxapp-gcc/build/app/test-pmd/testpmd -c 0x6 -n 2 -- -i
235 37 Laurent GUERBY
236 1 Laurent GUERBY
cd ../packet-journey
237 33 Laurent GUERBY
make
238 37 Laurent GUERBY
239 1 Laurent GUERBY
cd ../pktgen-dpdk
240 33 Laurent GUERBY
make
241 41 Laurent GUERBY
cd docs
242 41 Laurent GUERBY
apt-get install python-sphinx
243 41 Laurent GUERBY
make html
244 29 Laurent GUERBY
</pre>