Hi,

> Version Details 
DPDK Version : 19.11.10
Architecture : s390x (Big-Endian)
Linux OS Kernel : 5.4.0-128-generic
Ubuntu Version : 18.04.6 LTS

> Issue:
We are using ACL Library apis as part of DPDK application. As part of our
application we are trying to set following simple egress rule using function
rte_acl_add_rules():
src: 0.0.0.0/0
dst: 0.0.0.0/0
src port: 0:65535
dst port: 1:65535
protocol/mask: 6/255
category mask: 1 priority: 1 userdata: 536870912 (0x20000000)
The setting and building of rules are success.
We are then passing tcp packet to check if the same is getting matched. When
rte_acl_classify() is invoked with tcp(0x6) data as argument, we are getting
result as 0 instead of 0x2. So, a mismatch on the protocol rule is observed and
therefore packet is dropped on egress. 

Can you provide some insights with the issue ? 

Regards,
Utsav