[dpdk-dev] Release of Packet Journey

[dpdk-dev] Release of Packet Journey

[Nikita Kozlov]

Hello,

We have opensourced our dpdk-based project, Packet Journey
https://github.com/Gandi/packet-journey .

Packet Journey is a combinationof Linux RT_NETLINK and severalparts
ofDPDK (rte_kni, rte_lpm, rte_acl, rte_cmdline) and is intended to
serveas an edge router.

Our use case is:
- pktj starts several forwarding threads and a KNI thread per external port
- pktj launches a script which configures the KNI interface (MAC, IP,
VLAN) and launches a BGP daemon
- the host receives routes from the BGP daemon
- the BGP daemon injects the routes in Linux
- pktj receives the routes from NETLINK and put them in LPM in our
"control" threads
- pktj forwards packets to the KNI if the packets are
  - for the KNI IP or
  - if the neighbor is not known yet
  - if ttl reaches 0
- pktj filters packets if they match an ACLor if they exceed the rate
limit, kni output is also rate-limited
- pktj forwards packetsdirectly from the RXqueue to the TXqueue if the
neighbor is known

-- 
Nikita

Re: [dpdk-dev] Release of Packet Journey

[Vladimir Medvedkin]

Hi Nikita,

First of all thank you for published your project.
Please apply this patch below
diff --git a/app/acl.h b/app/acl.h
index fb2f73a..74a1dd5 100644
--- a/app/acl.h
+++ b/app/acl.h
@@ -72,4 +72,21 @@ extern struct acl_parm acl_parm_config;
 extern struct rte_acl_ctx *ipv4_acx[NB_SOCKETS];
 extern struct rte_acl_ctx *ipv6_acx[NB_SOCKETS];

+/*
+ * That effectively defines order of IPV4VLAN classifications:
+ *  - PROTO
+ *  - VLAN (TAG and DOMAIN)
+ *  - SRC IP ADDRESS
+ *  - DST IP ADDRESS
+ *  - PORTS (SRC and DST)
+ */
+enum {
+        RTE_ACL_IPV4VLAN_PROTO,
+        RTE_ACL_IPV4VLAN_VLAN,
+        RTE_ACL_IPV4VLAN_SRC,
+        RTE_ACL_IPV4VLAN_DST,
+        RTE_ACL_IPV4VLAN_PORTS,
+        RTE_ACL_IPV4VLAN_NUM
+};
+
 #endif

without it your project is not compiled.

Further your app breaks with segment fault. I run it as follows
root@war202:~/PKTJ/packet-journey#
./build/app/x86_64-native-linuxapp-gcc/app/pktj -l 0,1,2,3 -n 4
--socket-mem=4096 --log-level=4 -- --configfile
/home/medved/PKTJ/packet-journey/tests/integration/lab00/pktj.conf
PKTJ_ACL: IPv6 ACL entries 0:
PKTJ_ACL: IPv4 ACL entries 1:
PKTJ_ACL:       1:PKTJ_ACL: 0.0.0.0/0 PKTJ_ACL: 1.2.6.0/24 PKTJ_ACL: 0 :
65535 0 : 65535 0x0/0x0 PKTJ_ACL: 0xffffffff-0x0-0xf0000000 PKTJ_ACL:
acl context <pktj-acl-ipv40-0>@0x7fd3bf41aa80
  socket_id=0
  alg=3
  max_rules=100000
  rule_size=96
  num_rules=1
  num_categories=1
  num_tries=1
ACL: allocation of 9600904 bytes on socket 1 for ACL_pktj-acl-ipv41-0 failed
PKTJ_ACL: Failed to create ACL context
PKTJ_ACL: setup_acl failed for ipv4 with socketid 1, keeping previous rules
for that socket
ACL: allocation of 9600904 bytes on socket 2 for ACL_pktj-acl-ipv42-0 failed
PKTJ_ACL: Failed to create ACL context
PKTJ_ACL: setup_acl failed for ipv4 with socketid 2, keeping previous rules
for that socket
ACL: allocation of 9600904 bytes on socket 3 for ACL_pktj-acl-ipv43-0 failed
PKTJ_ACL: Failed to create ACL context
PKTJ_ACL: setup_acl failed for ipv4 with socketid 3, keeping previous rules
for that socket
 Address:90:E2:BA:39:2A:D8
port=0 tx_queueid=3 nb_txd=512 kni
launching control thread for socketid 0 on lcore 0
CMDLINE1: symlink() failed
Segmentation fault

Regards,
Vladimir



2015-10-29 22:53 GMT+03:00 Nikita Kozlov <nikita@gandi.net>:

> Hello,
>
> We have opensourced our dpdk-based project, Packet Journey
> https://github.com/Gandi/packet-journey .
>
> Packet Journey is a combinationof Linux RT_NETLINK and severalparts
> ofDPDK (rte_kni, rte_lpm, rte_acl, rte_cmdline) and is intended to
> serveas an edge router.
>
> Our use case is:
> - pktj starts several forwarding threads and a KNI thread per external port
> - pktj launches a script which configures the KNI interface (MAC, IP,
> VLAN) and launches a BGP daemon
> - the host receives routes from the BGP daemon
> - the BGP daemon injects the routes in Linux
> - pktj receives the routes from NETLINK and put them in LPM in our
> "control" threads
> - pktj forwards packets to the KNI if the packets are
>   - for the KNI IP or
>   - if the neighbor is not known yet
>   - if ttl reaches 0
> - pktj filters packets if they match an ACLor if they exceed the rate
> limit, kni output is also rate-limited
> - pktj forwards packetsdirectly from the RXqueue to the TXqueue if the
> neighbor is known
>
> --
> Nikita
>