[dpdk-users] DPDK 2.2 MLX4: problem with number of TX/RX queues
harold.demure87 at gmail.com
Thu Feb 11 15:24:07 CET 2016
I am new to the DPDK world and I am having some troubles in using some
code (not written by me).
In particular, I bump into this error when invoking the rte_eth_dev_configure
PMD: librte_pmd_mlx4: 0x10a4d2a0: TX queues number update: 0 -> 16
PMD: librte_pmd_mlx4: 0x10a4d2a0: RX queues number update: 0 -> 16
PMD: librte_pmd_mlx4: 0x10a4d2a0: only a single RX queue can be configured
when hardware doesn't support RSS
On the other hand, it seems that my hardware is configured to have 16 RX/TX
queues (equal to the number of cores)
$ ethtool -l p785p1
Channel parameters for p785p1:
Current hardware settings:
------ Additional info
I am using DPDK 2.2
I have followed the instructions in  to install
(3.2 is out, but instructions in  refers to 3.1)
My NIC :
05:00.0 Ethernet controller: Mellanox Technologies MT27520 Family
My machine runs a 3.19.0-47-generic on Ubuntu 14.04.
CPU is Intel(R) Xeon(R) CPU E5-2630 v3 @ 2.40GHz 2x8 cores
Note that, in the end, the software I am going to use is intended to use
flow director and not RSS.
Any idea? I have the feeling the solution might be trivial, but I am a noob
in this domain and I have searched around, finding no answer.
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