[PATCH 2/3] ath10k: expose hw restart via debugfs

[Kalle Valo]

Michal Kazior <michal.kazior at tieto.com> writes:

> Until now it was possible to simulate soft and
> hard fw crashes but it wasn't possible to trigger
> an immediately hw restart itself (without the fw
> crash).
>
> This can be useful when stress testing hw
> restarting stability, e.g. during heavy tx/rx
> traffic.
>
> Signed-off-by: Michal Kazior <michal.kazior at tieto.com>

Nice idea!

> --- a/drivers/net/wireless/ath/ath10k/debug.c
> +++ b/drivers/net/wireless/ath/ath10k/debug.c
> @@ -694,7 +694,8 @@ static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
>  		"To simulate firmware crash write one of the keywords to this file:\n"
>  		"`soft` - this will send WMI_FORCE_FW_HANG_ASSERT to firmware if FW supports that command.\n"
>  		"`hard` - this will send to firmware command with illegal parameters causing firmware crash.\n"
> -		"`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n";
> +		"`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n"
> +		"`request` - this will simply queue hw restart without fw/hw actually crashing.\n";

"request" is not really very descriptive command. Maybe call it
"hw-restart" because that's what it really does, right?

-- 
Kalle Valo