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From: Cliff Burdick <shaklee3@gmail.com>
Date: Mon, 1 Oct 2018 21:20:09 -0700
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Subject: [dpdk-users] rte_flow error after upgrading
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Hi, I upgraded to DPDK 18.05 from 17.11 and a previously-working rte_flow
code now fails. I'm using the mlx5 driver, and when I do something similar
to the rte_flow example code, the following error shows:

"VLAN cannot be empty"

I looked at the code in .drivers/net/mlx5/mlx5_flow.c, and it looks like it
now complains when the mask isn't set on a VLAN flow layer. I tried setting
the mask to 0xffff, and the error no longer shows, but packets are not
classified properly either, and they all go to queue 0. Has anyone been
able to get a working rte_flow queue classifier working with 18.05+?