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zebra: add documentation for the DPDK dataplane plugin

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Signed-off-by: Anuradha Karuppiah <anuradhak@nvidia.com>
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Anuradha Karuppiah 2021-12-30 16:15:46 -08:00 committed by Donald Sharp
parent 7f0416b368
commit 3c6732e43d
1 changed files with 53 additions and 0 deletions
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doc/user/zebra.rst
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@ -1140,6 +1140,59 @@ order to off-load work from the main zebra pthread.
waiting to be processed by the dataplane pthread.
DPDK dataplane
==============
The zebra DPDK subsystem programs the dataplane via rte_XXX APIs.
This module needs be compiled in via "--enable-dp-dpdk=yes"
and enabled at start up time via the zebra daemon option "-M dplane_dpdk".
To program the PBR rules as rte_flows you additionally need to configure
"pbr nexthop-resolve". This is used to expland the PBR actions into the
{SMAC, DMAC, outgoing port} needed by rte_flow.
.. clicmd:: show dplane dpdk port [detail]
Displays the mapping table between zebra interfaces and DPDK port-ids.
Sample output:
::
Port Device IfName IfIndex sw,domain,port
0 0000:03:00.0 p0 4 0000:03:00.0,0,65535
1 0000:03:00.0 pf0hpf 6 0000:03:00.0,0,4095
2 0000:03:00.0 pf0vf0 15 0000:03:00.0,0,4096
3 0000:03:00.0 pf0vf1 16 0000:03:00.0,0,4097
4 0000:03:00.1 p1 5 0000:03:00.1,1,65535
5 0000:03:00.1 pf1hpf 7 0000:03:00.1,1,20479
.. clicmd:: show dplane dpdk pbr flows
Displays the DPDK stats per-PBR entry.
Sample output:
::
Rules if pf0vf0
Seq 1 pri 300
SRC Match 77.0.0.8/32
DST Match 88.0.0.8/32
Tableid: 10000
Action: nh: 45.0.0.250 intf: p0
Action: mac: 00:00:5e:00:01:fa
DPDK flow: installed 0x40
DPDK flow stats: packets 13 bytes 1586
.. clicmd:: show dplane dpdk counters
Displays the ZAPI message handler counters
Sample output:
::
Ignored updates: 0
PBR rule adds: 1
PBR rule dels: 0
zebra Terminal Mode Commands
============================