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Subject: Re: [PATCHv3] ath11k: add dbring debug support
From:   Kalle Valo <kvalo@kernel.org>
In-Reply-To: <1645366059-11798-1-git-send-email-quic_vnaralas@quicinc.com>
References: <1645366059-11798-1-git-send-email-quic_vnaralas@quicinc.com>
To:     Venkateswara Naralasetty <quic_vnaralas@quicinc.com>
Cc:     <ath11k@lists.infradead.org>, <linux-wireless@vger.kernel.org>,
        Venkateswara Naralasetty <quic_vnaralas@quicinc.com>
User-Agent: pwcli/0.1.0-git (https://github.com/kvalo/pwcli/) Python/3.7.3
Message-ID: <164569339560.30378.9204871614230045974.kvalo@kernel.org>
Date:   Thu, 24 Feb 2022 09:03:17 +0000 (UTC)
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Venkateswara Naralasetty <quic_vnaralas@quicinc.com> wrote:

> Target copies spectral report and CFR report through dbring to
> host for further processing. This mechanism involves ring and
> buffer management in the Host, FW, and uCode, where improper
> tail pointer update issues are seen.
> 
> This dbring debug support help to debug such issues by tracking
> head and tail pointer movement along with the timestamp at which
> each buffer is received and replenished.
> 
> Provide a debugfs interface to enalbe/disable dbring debug
> support and dump the dbring debug entries.
> 
> Also introduced a new hardware param to add dbring debugfs support
> for few hardwares which are using dbings.
> 
> Usage:
> 
> echo <dbr_id> <val> > /sys/kernel/debug/ath11k/ipq8074_2/
> mac0/enable_dbr_debug
> 
> dbr_id: 0 for spectral and 1 for CFR
> val: 0 - disable, 1 - enable.
> 
> Tested-on: IPQ8074 WLAN.HK.2.4.0.1-01467-QCAHKSWPL_SILICONZ-1
> 
> Signed-off-by: Venkateswara Naralasetty <quic_vnaralas@quicinc.com>
> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>

Patch applied to ath-next branch of ath.git, thanks.

691425b4a41f ath11k: add dbring debug support

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/1645366059-11798-1-git-send-email-quic_vnaralas@quicinc.com/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches