[dpdk-users] DPDK IP Pipeline query

["Talukdar, Biju" <Biju_Talukdar@student.uml.edu>]

Hi,


I have one question regarding DPDK IP Pipeline. We are trying to use multiple cores and multiple queues using PASS-THROUGH pipeline. We have one input port RXQ0 and a output port TXQ0. Now we want to use several cores to process  the incoming traffic. We want to instantiate several pipelines and pin them to different cores. But we are not able to figure out how the configuration files should look like. Please see the following configuration file we tried. It gave us error saying more than one writer .


Then we thought we could use RX0.1 and TX0.1. We got the error saying LINK0 RXQs are not contiguous (B).


Our goal is to use more cores for the incoming traffic from the same port.



sample configuration file


[PIPELINE0]
type = MASTER
core = 0

[PIPELINE1]
type = PASS-THROUGH
core = 1
pktq_in = RXQ0.0
pktq_out = SWQ0 SWQ1
dma_size = 16
dma_dst_offset = 128; mbuf (128) + 64
dma_src_offset = 278; mbuf (128) + headroom (128) + ethernet header (14) + ttl offset within ip header (8) = 278
dma_src_mask = 00FF0000FFFFFFFFFFFFFFFFFFFFFFFF; ipv4 5-tuple
dma_hash_offset = 144; dma_dst_offset + dma_size


[PIPELINE2]
type = PASS-THROUGH
core = 2
pktq_in = SWQ0
pktq_out = TXQ0.0
dma_size = 16
dma_dst_offset = 128; mbuf (128) + 64
dma_src_offset = 278; mbuf (128) + headroom (128) + ethernet header (14) + ttl offset within ip header (8) = 278
dma_src_mask = 00FF0000FFFFFFFFFFFFFFFFFFFFFFFF; ipv4 5-tuple
dma_hash_offset = 144; dma_dst_offset + dma_size


[PIPELINE3]
type = PASS-THROUGH
core = 3
pktq_in = SWQ1
pktq_out = TXQ0.0
dma_size = 16
dma_dst_offset = 128; mbuf (128) + 64
dma_src_offset = 278; mbuf (128) + headroom (128) + ethernet header (14) + ttl offset within ip header (8) = 278
dma_src_mask = 00FF0000FFFFFFFFFFFFFFFFFFFFFFFF; ipv4 5-tuple
dma_hash_offset = 144; dma_dst_offset + dma_size



Thank you

Biju