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Subject: Re: [PATCH] rtw88: 8822c: support FW crash dump when FW crash
From:   Kalle Valo <kvalo@codeaurora.org>
In-Reply-To: <20210309060121.9099-1-pkshih@realtek.com>
References: <20210309060121.9099-1-pkshih@realtek.com>
To:     Ping-Ke Shih <pkshih@realtek.com>
Cc:     <tony0620emma@gmail.com>, <linux-wireless@vger.kernel.org>,
        <kevin_yang@realtek.com>
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Message-Id: <20210315082953.5296EC433CA@smtp.codeaurora.org>
Date:   Mon, 15 Mar 2021 08:29:53 +0000 (UTC)
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Ping-Ke Shih <pkshih@realtek.com> wrote:

> From: Zong-Zhe Yang <kevin_yang@realtek.com>
> 
> Although FW crash logs are already supported for dumping in driver, the
> logs may not be sufficient to analyze field issues. To improve this part,
> we add a support to dump FW memory.
> 
> When driver receives FW crash notifications, driver uses DDMA, which is a
> HW ability, to copy specified FW memory to FW fifo. Driver can then dump
> these information from FW fifo. With this support, not only FW crash log
> but also specified FW memory will be dumped while FW crash. Besides,
> specified registers are also dumped.
> 
> This feature is implemeted on 8822C first due to difference of FW layouts
> between ICs. In addition, we add a debugfs to trigger FW crash. It can
> simulate the process of crash, dump and reset. Through it, we can also
> check if a reset is ongoing.
> 
> Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>

Patch applied to wireless-drivers-next.git, thanks.

13ce240a932f rtw88: 8822c: support FW crash dump when FW crash

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20210309060121.9099-1-pkshih@realtek.com/

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