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From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Date: Tue, 26 Mar 2024 19:51:45 +0200
Message-ID: <CAA8EJppn6M9dpzyu9d283AUtaeN-i-L=-aM5P9BEELXPLFS8YQ@mail.gmail.com>
Subject: Re: [PATCH 1/2] dt-bindings: net: wireless: ath10k: add
 qcom,no-msa-ready-indicator prop
To: Marc Gonzalez <mgonzalez@freebox.fr>
Cc: Kalle Valo <kvalo@kernel.org>, Jeff Johnson <quic_jjohnson@quicinc.com>, 
	ath10k <ath10k@lists.infradead.org>, wireless <linux-wireless@vger.kernel.org>, 
	DT <devicetree@vger.kernel.org>, Pierre-Hugues Husson <phhusson@freebox.fr>, 
	Arnaud Vrac <avrac@freebox.fr>, Jami Kettunen <jamipkettunen@gmail.com>, 
	Jeffrey Hugo <quic_jhugo@quicinc.com>, Bjorn Andersson <andersson@kernel.org>, 
	Konrad Dybcio <konrad.dybcio@linaro.org>
Content-Type: text/plain; charset="UTF-8"

On Tue, 26 Mar 2024 at 19:45, Marc Gonzalez <mgonzalez@freebox.fr> wrote:
>
> [ It has been pointed out to me that the previous message was unclear. ]
> [ Below is my 2nd attempt at a clearer message. ]
>
> Problem: firmware-5.bin has not been parsed yet when we have to handle
> the ATH10K_QMI_EVENT_SERVER_ARRIVE case, so we can't rely on feature bits
> to work around the lack of MSA_READY indicator.

Then, I'd say, we have to resort to the DT property, unless Kalle or
Jeff have other proposals.

>
>
> On 26/03/2024 16:04, Marc Gonzalez wrote:
>
> > QMI stuff happens much EARLIER than firmware-5.bin handling.
> > (ar->running_fw is still NULL)
> >
> >
> > [   14.547563] ath10k_snoc 18800000.wifi: qmi wifi fw qmi service connected
> > [   14.555054] ath10k_snoc 18800000.wifi: qmi indication register request completed
> > [   14.561406] ath10k_snoc 18800000.wifi: qmi host capability request completed
> > [   14.568365] ath10k_snoc 18800000.wifi: qmi msa mem region 0 addr 0x0x0000000094400000 size 0x4000 flag 0x00000001
> > [   14.573775] ath10k_snoc 18800000.wifi: qmi msa mem region 1 addr 0x0x0000000094404000 size 0xfc000 flag 0x00000000
> > [   14.583896] ath10k_snoc 18800000.wifi: qmi msa mem info request completed
> > [   14.630179] ath10k_snoc 18800000.wifi: qmi msa mem ready request completed
> > [   14.681647] ath10k_snoc 18800000.wifi: qmi chip_id 0x30214 chip_family 0x4001 board_id 0xff soc_id 0x40010002
> > [   14.681726] ath10k_snoc 18800000.wifi: qmi fw_version 0x100204b2 fw_build_timestamp 2019-09-04 03:01 fw_build_id QC_IMAGE_VERSION_STRING=WLAN.HL.1.0-01202-QCAHLSWMTPLZ-1.221523.2
> > *** ATH10K_QMI_EVENT_SERVER_ARRIVE is handled at this point
> > [   14.690657] ath10k_snoc 18800000.wifi: DT bdf variant name not set.
> > [   14.706423] ath10k_snoc 18800000.wifi: boot using board name 'bus=snoc,qmi-board-id=ff,qmi-chip-id=30214'
> > [   14.712587] ath10k_snoc 18800000.wifi: boot using board name 'bus=snoc,qmi-board-id=ff,qmi-chip-id=30214'
> > [   14.722309] ath10k_snoc 18800000.wifi: boot using board name 'bus=snoc,qmi-board-id=ff'
> > [   14.745634] ath10k_snoc 18800000.wifi: boot fw request 'ath10k/WCN3990/hw1.0/board-2.bin': 0
> > ... snip boards dump
> > [   15.560607] ath10k_snoc 18800000.wifi: boot found match for name 'bus=snoc,qmi-board-id=ff,qmi-chip-id=30214'
> > [   15.570590] ath10k_snoc 18800000.wifi: boot found board data for 'bus=snoc,qmi-board-id=ff,qmi-chip-id=30214'
> > [   15.580393] ath10k_snoc 18800000.wifi: using board api 2
> > [   15.591465] ath10k_snoc 18800000.wifi: qmi bdf download request completed
> > [   15.595786] ath10k_snoc 18800000.wifi: qmi cal report request completed
> > [   18.667441] ath10k_snoc 18800000.wifi: wifi fw ready event received
> > [   18.667519] ath10k_snoc 18800000.wifi: ath10k_snoc_hif_power_up:WCN3990 driver state = 0
> > [   18.672579] ath10k_snoc 18800000.wifi: soc power on
> > [   18.684550] ath10k_snoc 18800000.wifi: qmi mode 0 config 00000000313ae0ca
> > [   18.692591] ath10k_snoc 18800000.wifi: qmi config request completed
> > [   18.748262] ath10k_snoc 18800000.wifi: qmi wlan mode req completed: 0
> > [   18.748370] ath10k_snoc 18800000.wifi: boot init ce src ring id 0 entries 16 base_addr 00000000b9feff9c
> > [   18.753792] ath10k_snoc 18800000.wifi: boot ce dest ring id 1 entries 512 base_addr 000000005f850e88
> > [   18.762971] ath10k_snoc 18800000.wifi: boot ce dest ring id 2 entries 64 base_addr 000000002467084e
> > [   18.772375] ath10k_snoc 18800000.wifi: boot init ce src ring id 3 entries 32 base_addr 00000000ded78c3f
> > [   18.781122] ath10k_snoc 18800000.wifi: boot init ce src ring id 4 entries 2048 base_addr 00000000c9e8883a
> > [   18.790482] ath10k_snoc 18800000.wifi: boot ce dest ring id 5 entries 512 base_addr 00000000309e9375
> > [   18.800220] ath10k_snoc 18800000.wifi: boot init ce src ring id 7 entries 2 base_addr 00000000e5e3fb73
> > [   18.809395] ath10k_snoc 18800000.wifi: boot ce dest ring id 7 entries 2 base_addr 00000000c08890b2
> > [   18.818507] ath10k_snoc 18800000.wifi: boot ce dest ring id 8 entries 128 base_addr 000000006af0777e
> > [   18.827466] ath10k_snoc 18800000.wifi: boot ce dest ring id 9 entries 512 base_addr 00000000f2c0ce43
> > [   18.836770] ath10k_snoc 18800000.wifi: boot ce dest ring id 10 entries 512 base_addr 00000000269a2564
> > [   18.845863] ath10k_snoc 18800000.wifi: boot ce dest ring id 11 entries 512 base_addr 00000000f4a8c90e
> > [   18.855002] ath10k_snoc 18800000.wifi: Hardware name wcn3990 hw1.0 version 0x8
> > [   18.865605] ath10k_snoc 18800000.wifi: boot fw request 'ath10k/pre-cal-snoc-18800000.wifi.bin': -2
> > [   18.871747] ath10k_snoc 18800000.wifi: boot fw request 'ath10k/cal-snoc-18800000.wifi.bin': -2
> > [   18.880307] ath10k_snoc 18800000.wifi: trying fw api 6
> > [   18.889520] ath10k_snoc 18800000.wifi: boot fw request 'ath10k/WCN3990/hw1.0/firmware-6.bin': -2
> > [   18.894020] ath10k_snoc 18800000.wifi: trying fw api 5
> > *** firmware-5.bin is handled at this point
> > [   18.904176] ath10k_snoc 18800000.wifi: boot fw request 'ath10k/WCN3990/hw1.0/firmware-5.bin': 0
> > [   18.907802] ath10k_snoc 18800000.wifi: found fw timestamp 1539237028
> > [   18.916460] ath10k_snoc 18800000.wifi: found firmware features ie (3 B)
> > [   18.923027] ath10k_snoc 18800000.wifi: Enabling feature bit: 6
> > [   18.929373] ath10k_snoc 18800000.wifi: Enabling feature bit: 18
> > [   18.935279] ath10k_snoc 18800000.wifi: Enabling feature bit: 19
> > [   18.941085] ath10k_snoc 18800000.wifi: features
> > [   18.946975] ath10k_snoc 18800000.wifi: 00000000: 40 00 0c 00 00 00 00 00                          @.......
> > [   18.951534] ath10k_snoc 18800000.wifi: found fw ie wmi op version 4
> > [   18.961235] ath10k_snoc 18800000.wifi: found fw ie htt op version 3
> > [   18.967390] ath10k_snoc 18800000.wifi: using fw api 5
> >
> >
> >
> > I don't know how to solve this problem.
> > (If we just skip waiting for MSA_READY, there is no problem)
> >
> > Kalle, Jeff, do you see a way out of this conundrum?
>
> Regards.
>


-- 
With best wishes
Dmitry