From: Vinod Koul <vkoul@kernel.org>
To: dmaengine@vger.kernel.org,
Vinicius Costa Gomes <vinicius.gomes@intel.com>
Cc: dave.jiang@intel.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1] dmaengine: idxd: drain ATS translations when disabling WQ
Date: Thu, 16 Oct 2025 20:32:15 +0530 [thread overview]
Message-ID: <176062693527.525215.1212282983221053178.b4-ty@kernel.org> (raw)
In-Reply-To: <20251001012226.1664994-1-vinicius.gomes@intel.com>
On Tue, 30 Sep 2025 18:22:26 -0700, Vinicius Costa Gomes wrote:
> There's an errata[1], for the Disable WQ command that it
> does not guaranteee that address translations are drained. If WQ
> configuration is updated, pending address translations can use an
> updated WQ configuration, resulting an invalid translation response
> that is cached in the device translation cache.
>
> Replace the Disable WQ command with a Drain WQ command followed by a
> Reset WQ command, this guarantees that all ATS translations are
> drained from the device before changing WQ configuration.
>
> [...]
Applied, thanks!
[1/1] dmaengine: idxd: drain ATS translations when disabling WQ
commit: f80ea8566917c4bb680911db839a170873e5d17c
Best regards,
--
~Vinod
prev parent reply other threads:[~2025-10-16 15:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-01 1:22 Vinicius Costa Gomes
2025-10-01 15:42 ` Dave Jiang
2025-10-16 15:02 ` Vinod Koul [this message]
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