Ping-Ke Shih <pkshih@xxxxxxxxxxx> wrote: > From: Zong-Zhe Yang <kevin_yang@xxxxxxxxxxx> > > 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@xxxxxxxxxxx> > Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx> 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@xxxxxxxxxxx/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
