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Message-ID: <45265cf5224d8d5e12e2eddc8968a879008657e5.camel@gmail.com> (sfid-20180630_155640_972329_DE6D4EF4)
Subject: Re: [v2] ath10k: Update the phymode along with bandwidth change
 request
From: Timur =?ISO-8859-1?Q?Krist=F3f?= <timur.kristof@gmail.com>
To: Kalle Valo <kvalo@codeaurora.org>,
        Ryan Hsu <ryanhsu@codeaurora.org>
Cc: ath10k@lists.infradead.org, linux-wireless@vger.kernel.org
Date: Sat, 30 Jun 2018 15:56:33 +0200
In-Reply-To: <20180628092800.6517B608C8@smtp.codeaurora.org>
References: <1528482759-12604-1-git-send-email-ryanhsu@codeaurora.org>
         <20180628092800.6517B608C8@smtp.codeaurora.org>
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On Thu, 2018-06-28 at 09:28 +0000, Kalle Valo wrote:
> Ryan Hsu <ryanhsu@codeaurora.org> wrote:
> 
> > In the case of Station connects to AP with narrower bandwidth at
> > beginning.
> > And later the AP changes the bandwidth to winder bandwidth, the AP
> > will
> > beacon with wider bandwidth IE, eg VHT20->VHT40->VHT80 or VHT40-
> > >VHT80.
> > 
> > Since the supported BANDWIDTH will be limited by the PHYMODE, so
> > while
> > Station receives the bandwidth change request, it will also need to
> > reconfigure the PHYMODE setting to firmware instead of just
> > configuring
> > the BANDWIDTH info, otherwise it'll trigger a firmware crash with
> > non-support bandwidth.
> > 
> > The issue was observed in WLAN.RM.4.4.1-00051-QCARMSWP-1, QCA6174
> > with
> > below scenario:
> > 
> > AP xxx changed bandwidth, new config is 5200 MHz, width 2 (5190/0
> > MHz)
> > disconnect from AP xxx for new auth to yyy
> > RX ReassocResp from xxx (capab=0x1111 status=0 aid=102)
> > associated
> > 
> > ....
> > 
> > AP xxx changed bandwidth, new config is 5200 MHz, width 2 (5190/0
> > MHz)
> > AP xxx changed bandwidth, new config is 5200 MHz, width 3 (5210/0
> > MHz)
> > 
> > ....
> > 
> > firmware register dump:
> > [00]: 0x05030000 0x000015B3 0x00987291 0x00955B31
> > [04]: 0x00987291 0x00060730 0x00000004 0x00000001
> > [08]: 0x004089F0 0x00955A00 0x000A0B00 0x00400000
> > [12]: 0x00000009 0x00000000 0x00952CD0 0x00952CE6
> > [16]: 0x00952CC4 0x0098E25F 0x00000000 0x0091080D
> > [20]: 0x40987291 0x0040E7A8 0x00000000 0x0041EE3C
> > [24]: 0x809ABF05 0x0040E808 0x00000000 0xC0987291
> > [28]: 0x809A650C 0x0040E948 0x0041FE40 0x004345C4
> > [32]: 0x809A5C63 0x0040E988 0x0040E9AC 0x0042D1A8
> > [36]: 0x8091D252 0x0040E9A8 0x00000002 0x00000001
> > [40]: 0x809FDA9D 0x0040EA58 0x0043D554 0x0042D554
> > [44]: 0x809F8B22 0x0040EA78 0x0043D554 0x00000001
> > [48]: 0x80911210 0x0040EAC8 0x00000010 0x004041D0
> > [52]: 0x80911154 0x0040EB28 0x00400000 0x00000000
> > [56]: 0x8091122D 0x0040EB48 0x00000000 0x00400600
> > 
> > Reported-by: Rouven Czerwinski <rouven@czerwinskis.de>
> > Tested-by: Timur Kristóf <timur.kristof@gmail.com>
> > Signed-off-by: Ryan Hsu <ryanhsu@codeaurora.org>
> > Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
> 
> Patch applied to ath-current branch of ath.git, thanks.
> 
> 9191fc2a431b ath10k: update the phymode along with bandwidth change
> request

Thank you Kalle.
Does this mean that the patch will get into kernel 4.18?

Best regards,
Tim