[PATCHv3] ath11k: add dbring debug support

[Kalle Valo]

Venkateswara Naralasetty <quic_vnaralas at 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 at quicinc.com>
> Signed-off-by: Kalle Valo <quic_kvalo at 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