From: hanoh haim <hhaim.hanoh@gmail.com>
To: dev@dpdk.org
Subject: [dpdk-dev] Qos issue with new DPDK 20.02 and i40e driver
Date: Tue, 14 Jul 2020 16:08:42 +0300 [thread overview]
Message-ID: <CA+YxBo+=2Mr6Ctf5gFW=ri-jw_t=UwO942imewqeaD_XYHayhw@mail.gmail.com> (raw)
Hi i40e driver experts,
We are **not** a typical user of i40e dpdk driver, we are using tx Qos
configuration (dcb) with strict latency tx queues. The feature stops
working with a new firmware 7.0.x.
We are using DDP (another thing that is not standard) to solve the drop
rate issue.
dpdk 19.05 - works fine
dpdk 20.02 (with new firmware) - does not work
I tried to look into what changed between 19.05->20.02 that was related to
dbc and couldn't find. Our patch is rather small, for now we have a
workaround (allocating one more tx queue) but it has not solved the problem.
more info here:
https://github.com/cisco-system-traffic-generator/trex-core/issues/508
Does it ring a bell?
--
Hanoh
Sent from my iPhone
reply other threads:[~2020-07-14 14:39 UTC|newest]
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