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From: Dean Marx <dmarx@iol.unh.edu>
To: Thomas Wilks <thomas.wilks@arm.com>
Cc: dev@dpdk.org, Paul Szczepanek <paul.szczepanek@arm.com>,
	 Luca Vizzarro <luca.vizzarro@arm.com>,
	Patrick Robb <probb@iol.unh.edu>,
	 Alex Chapman <alex.chapman@arm.com>
Subject: Re: [RFC PATCH v3 2/2] dts: add PMD RSS testsuite
Date: Fri, 18 Jul 2025 14:37:45 -0400	[thread overview]
Message-ID: <CABD7UXPyhmLKn-v7-8Wp=7fu3cgZSbVhgUzN=xeRNBKZjhh4rA@mail.gmail.com> (raw)
In-Reply-To: <20250718150404.200096-3-thomas.wilks@arm.com>

On Fri, Jul 18, 2025 at 11:05 AM Thomas Wilks <thomas.wilks@arm.com> wrote:
>
> Port over the rss_key_update, pmd_rss_reta and pmd_rss_hash
> test suites from old DTS into one file including all of the
> helper functions that are required by all of the test suites
> to work.
>
> The rss_key_update test cases verify that setting a new hash
> key when Receive Side Scaling (RSS) will result in a change
> in the packets destination queue. These test cases also
> verifies that the reported key size of the NIC is correct.
>
> The pmd_rss_reta test cases verify that Redirection Tables (RETAs)
> of different sizes function correctly in RSS. These test cases
> also verify that the reported reta size of the NIC is correct.
>
> The pmd_rss_hash test cases verify that the 4 supported types of
> hashing algorithm used in RSS function correctly and that the nic
> supports them. The four hashing algorithms being DEFAULT, TOEPLITZ,
> SYMMETRIC_TOEPLITZ and SIMPLE_XOR. These test cases also verify
> that the supported hashing algorithms reported by the NIC are correct.
>
> Signed-off-by: Alex Chapman <alex.chapman@arm.com>
> Signed-off-by: Thomas Wilks <thomas.wilks@arm.com>

It was brought up at the DTS meeting yesterday that this suite is
reliable on Intel NICs, but unreliable on Mellanox (CX6), which I can
confirm after running on a CX5 and Intel XL710 and seeing the same
behavior.

Reviewed-by: Dean Marx <dmarx@iol.unh.edu>
Tested-by: Dean Marx <dmarx@iol.unh.edu>

  reply	other threads:[~2025-07-18 18:37 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-29 12:50 [PATCH] dts: add RSS functions to testpmd Alex Chapman
2024-09-06 14:29 ` Juraj Linkeš
2025-02-25 15:33 ` [PATCH v2 0/6] Added RSS functions and tests Thomas Wilks
2025-02-25 15:33   ` [PATCH v2 1/6] dts: add RSS functions to testpmd Thomas Wilks
2025-04-14  3:11     ` Patrick Robb
2025-02-25 15:33   ` [PATCH v2 2/6] dts: add utils for PMD RSS testsuites Thomas Wilks
2025-04-14  3:11     ` Patrick Robb
2025-02-25 15:33   ` [PATCH v2 3/6] dts: add PMD RSS hash testsuite Thomas Wilks
2025-04-14  3:30     ` Patrick Robb
2025-02-25 15:33   ` [PATCH v2 4/6] dts: add PMD RSS RETA testsuite Thomas Wilks
2025-02-25 15:33   ` [PATCH v2 5/6] dts: add PMD RSS key update testsuite Thomas Wilks
2025-02-25 15:33   ` [PATCH v2 6/6] dts: add NIC capabilities for hash algorithms Thomas Wilks
2025-07-18 15:03   ` [RFC PATCH v3 0/2] dts: add RSS functions and test suite Thomas Wilks
2025-07-18 15:04     ` [RFC PATCH v3 1/2] dts: add RSS functions to testpmd Thomas Wilks
2025-07-18 15:04     ` [RFC PATCH v3 2/2] dts: add PMD RSS testsuite Thomas Wilks
2025-07-18 18:37       ` Dean Marx [this message]
2025-07-18 17:00     ` [RFC PATCH v3 0/2] dts: add RSS functions and test suite Ivan Malov
2025-07-18 18:22       ` Ivan Malov

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