DTS WG Meeting Minutes - August 28, 2025

[Patrick Robb <probb@iol.unh.edu>]

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August 28, 2025
Attendees
* Patrick Robb
* Luca Vizzarro
* Andrew Bailey
* Paul Szczepanek
* Thomas Wilks

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Minutes

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General Discussion
* The new DTS guide videos will be on the dpdk.org youtube soon

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Patch discussions
* TG Driver Bind series:
   * Binding Worked fine except for mellanox where is_bound_for_dpdk logic
resulted in unexpected behavior since kernel driver is the same as DPDK
driver (mlx5_core)
* RSS:
   * Some testcase changes requested, but overall the implementation is
working
   * Someone will be taking this series over:
      * Paul will take over this testsuite
   * Proposed extension of the existing testcase #2 from below, splits it
into 3 testcases. Left side is hash, right size is queue.
      * Testcase #1:
         * 0 -> 1
         * 1 -> 2
         * 2 -> 3
         * 3 -> 4
      * Testcase #2:
         * 0 -> 0
         * 1 -> 1
         * 2 -> 1
         * 3 -> 1
      * Testcase #3:
         * 0 -> 1
         * 1 -> 1
         * 2 -> 1
         * 3 -> 1
   * For test_reta_key_reta_queues, strange behavior for mellanox (creates
a reta of 2, then 512, then 16)
* Mbuf fast release testcase:
   * Morten has drafted a required update to the testplan. Patrick will
send a new version in new DTS. https://bugs.dpdk.org/show_bug.cgi?id=1769
   * The testcase works, but we need to add in capability checks for
tx_offloads and mbuf_fast_free tx_offload
* Virtio:
   * Per Maxime’s advice, we will run a vhost backend with a virtio_user
frontend (with no VM) like so:
https://doc.dpdk.org/guides/howto/virtio_user_as_exception_path.html
* DTS API:
   * Should be posted by the end of the week
* A couple patches have been merged:
   * Still needs to be merged:
https://patchwork.dpdk.org/project/dpdk/list/?series=35972
   *
https://patchwork.dpdk.org/project/dpdk/patch/20250820151850.484576-1-abailey@iol.unh.edu/
      * Patrick to do a final review before merging

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Bugzilla discussions
* Patrick to review the bugzilla list and prune anything:
https://bugs.dpdk.org/buglist.cgi?quicksearch=component%3Adts&list_id=9622

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Any other business
* Next meeting is September 4

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