linux-kernel - Re: [PATCH] ath10k: enable threaded napi on ath10k driver

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Message-ID: <20211214182852.6ebafb24@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Tue, 14 Dec 2021 18:28:52 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Abhishek Kumar <kuabhs@...omium.org>
Cc:     kvalo@...eaurora.org, briannorris@...omium.org,
        linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org,
        dianders@...omium.org, pillair@...eaurora.org,
        "David S. Miller" <davem@...emloft.net>,
        ath10k@...ts.infradead.org, netdev@...r.kernel.org
Subject: Re: [PATCH] ath10k: enable threaded napi on ath10k driver

On Tue, 14 Dec 2021 22:39:36 +0000 Abhishek Kumar wrote:
> NAPI poll can be done in threaded context along with soft irq
> context. Threaded context can be scheduled efficiently, thus
> creating less of bottleneck during Rx processing. This patch is
> to enable threaded NAPI on ath10k driver.

You need to explain in more detail what you mean by "can be scheduled
efficiently". mt76 had an issue where Rx and Tx would use the same IRQ 
and threaded NAPI allowed them to be run on separate cores. What's the
challenge for ath10k HW?