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From: Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= <toke@redhat.com>
Subject: Re: [PATCH 4/7] ath10k: disable TX complete indication of htt for sdio
In-Reply-To: <1566302108-18219-5-git-send-email-wgong@codeaurora.org>
References: <1566302108-18219-1-git-send-email-wgong@codeaurora.org>
 <1566302108-18219-5-git-send-email-wgong@codeaurora.org>
Date: Tue, 20 Aug 2019 14:23:59 +0200
Message-ID: <87blwkt480.fsf@toke.dk>
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To: Wen Gong <wgong@codeaurora.org>, ath10k@lists.infradead.org
Cc: linux-wireless@vger.kernel.org

Wen Gong <wgong@codeaurora.org> writes:

> Tx complete message from firmware cost bus bandwidth of sdio, and bus
> bandwidth is the bollteneck of throughput, it will effect the bandwidth
> occupancy of data packet of TX and RX.
>
> This patch disable TX complete indication from firmware for htt data
> packet, it results in significant performance improvement on TX path.

Wait, how does that work? Am I understanding it correctly that this
replaces a per-packet TX completion with a periodic one sent out of
band?

And could you explain what the credits thing is for, please? :)

-Toke

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